Powered by Deep Web Technologies
Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Residential Customer Enrollment in Time-based Rate and Enabling Technology Programs: Smart Grid Investment Grant Consumer Behavior Study Analysis  

E-Print Network [OSTI]

Smart Grid Investment Grant Consumer Behavior Study AnalysisSmart Grid Investment Grant Consumer Behavior StudySmart Grid Investment Grant Consumer Behavior Study

Todd, Annika

2014-01-01T23:59:59.000Z

2

Summary of Utility Studies: Smart Grid Investment Grant Consumer Behavior Study Analysis  

E-Print Network [OSTI]

Studies: Smart Grid Investment Grant Consumer Behavior StudyEnergy Smart Grid Investment Grant Technical Advisory Group2012a) Smart Grid Investment Grant Program Progress Report.

Cappers, Peter

2014-01-01T23:59:59.000Z

3

Summary of Utility Studies: Smart Grid Investment Grant Consumer Behavior Study Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AUTHORS: AUTHORS: Peter Cappers, Annika Todd, Charles Goldman Environmental Energy Technologies Division Lawrence Berkeley National Laboratory June 2013 LBNL-6248E Summary of Utility Studies iii Acknowledgments The work described in this report was supported by the U.S. Department of Energy's Office of Electricity Delivery and Energy Reliability (DOE OE) under Lawrence Berkeley National Laboratory Contract No. DE-AC02-05CH11231. The authors would like to thank Joe Paladino (DOE OE) for his support. The authors would also like to thank the members of the LBNL Technical Advisory Group who contributed their wisdom and guidance: Peter Cappers, Annika Todd, Charles Goldman and Andy Satchwell (LBNL); Catherine Wolfram, Meredith Fowlie, and Lucas Davis (University of

4

Analysis of Customer Enrollment Patterns in Time-Based Rate Programs - Initial Results from the SGIG Consumer Behavior Studies  

Broader source: Energy.gov (indexed) [DOE]

July 2013 July 2013 SGIG Consumer Behavior Studies - Initial Results | Page ii Table of Contents Executive Summary .............................................................................................................. iii 1. Introduction ................................................................................................................... 1 1.1 Purpose and Scope ........................................................................................................... 1 1.2 Organization of this Report .............................................................................................. 3 2. Overview of the SGIG Consumer Behavior Studies .......................................................... 4 2.1 Recruitment Methods ...................................................................................................... 5

5

A database for the study of marine mammal behavior: Gap analysis, data standardization, and future directions  

E-Print Network [OSTI]

Gap Analysis, Data Standardization, and Future Directionsdata, and 3) lack of standardization in data re- porting. Awas the lack of standardization and/or presentation of

Shaffer, S A; Costa, Daniel P

2006-01-01T23:59:59.000Z

6

Analysis of the injection process in direct injected natural gas engines. Part 1: Study of unconfined and in-cylinder plume behavior  

SciTech Connect (OSTI)

A study of natural gas (NG) direct injection (DI) processes has been performed using multidimensional computational fluid dynamics analysis. The purpose was to improve the understanding of mixing in DI NG engines. Calculations of injection into a constant-volume chamber were performed to document unconfined plume behavior. A full three-dimensional calculation of injection into a medium heavy-duty diesel engine cylinder was also performed to study plume behavior in engine geometries. The structure of the NG plume is characterized by a core of unmixed fuel confined to the near-field of the jet. This core contains the bulk of the unmixed fuel and is mixed by the turbulence generated by the jet shear layer. The NG plume development in the engine is dominated by combustion chamber surface interactions. A Coanda effect causes plume attachment to the cylinder head, which has a detrimental impact on mixing. Unconfined plume calculations with different nozzle hole sizes demonstrate that smaller nozzle holes are more effective at mixing the fuel and air.

Jennings, M.J.; Jeske, F.R. (Ricardo North America, Burr Ridge, IL (United States))

1994-10-01T23:59:59.000Z

7

EIA Buildings Analysis of Consumer Behavior in NEMS  

U.S. Energy Information Administration (EIA) Indexed Site

Buildings Analysis of Consumer Buildings Analysis of Consumer Behavior in NEMS Behavioral Economics Experts Meeting July 17, 2013 | Washington, DC David Peterson Buildings Energy Consumption and Efficiency Analysis Overview Behavioral Economics Experts Meeting, Washington DC, July 17, 2013 2 * NEMS Structure * Housing/floorspace and service demand in Residential Demand Module (RDM) and Commercial Demand Module (CDM) * Market share calculation for equipment in RDM and CDM * Price responses / elasticities * Distributed generation (DG) & combined heat and power (CHP) NEMS Structure Behavioral Economics Experts Meeting, Washington DC, July 17, 2013 3 * Represents energy supply, conversion, and demand in a unified, but modular system * Detailed structural and process models in most energy sectors

8

Dusky dolphins of Kaikoura, New Zealand: behavioral effects of genetic sampling and analysis of population structure  

E-Print Network [OSTI]

DUSKY DOLPHINS OF KAIKOURA, NEW ZEALAND: BEHAVIORAL EFFECTS OF GENETIC SAMPLING AND ANALYSIS OF POPULATION STRUCTURE A Thesis by APRIL DAWN HARLIN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1999 Major Subject: Wildlife and Fisheries Sciences DUSKY DOLPHINS OF KAIKOURA, NEW ZEALAND: BEHAVIORAL EFFECTS OF GENETIC SAMPLING AND ANALYSIS OF POPULATION STRUCTURE A Thesis by APRIL DAWN HARLIN...

Harlin, April Dawn

1999-01-01T23:59:59.000Z

9

Behavioral Economics Applied to Energy Demand Analysis: A Foundation  

Reports and Publications (EIA)

Neoclassical economics has shaped our understanding of human behavior for several decades. While still an important starting point for economic studies, neoclassical frameworks have generally imposed strong assumptions, for example regarding utility maximization, information, and foresight, while treating consumer preferences as given or external to the framework. In real life, however, such strong assumptions tend to be less than fully valid. Behavioral economics refers to the study and formalizing of theories regarding deviations from traditionally-modeled economic decision-making in the behavior of individuals. The U.S. Energy Information Administration (EIA) has an interest in behavioral economics as one influence on energy demand.

2014-01-01T23:59:59.000Z

10

Analysis of Dynamic Behavior of an EOD Mechatronic Unit  

Science Journals Connector (OSTI)

This paper presents the dynamic behavior of a mechatronic unit EOD/IEDD (explosive ordinance disposal/ improvised explosive device disposal), by carrying out a modeling and simulation of a proposed control, this unit is applied to perform hazardous-duty ... Keywords: analysis, dynamic, manipulation., mobile, modeling, simulation

Luis Adrian Zuñiga Aviles; Jesús C. Pedraza; E. Gorrostieta; J. M. Ramos

2009-09-01T23:59:59.000Z

11

An Empirical Study of How People Perceive Online Behavioral Advertising  

E-Print Network [OSTI]

An Empirical Study of How People Perceive Online Behavioral Advertising Aleecia M. Mc 15213 #12; 1 An Empirical Study of How People Perceive Online Behavioral Advertising Aleecia M. Mc a series of in-depth qualitative interviews with 14 subjects who answered advertisements to participate

Sadeh, Norman M.

12

Analysis of the behavior of 5 axially loaded single piles in sand at Hunter's Point  

E-Print Network [OSTI]

ANALYSIS OF THE BEHAVIOR OF 5 AXIALLY LOADED SINGLE PILES IN SAND AT HUNTER'S POINT A Thesis by CHER MIN RON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1989 Major Subject; Civil Engineering ANALYSIS OF THE BEHAVIOR OF 5 AXIALLY LOADED SINGLE PILES IN SAND AT HUNTER'S POINT A Thesis by GHEE MIN RON Approved as to style and content by: Jean-Louis Briaud Chairman of Committee...

Kon, Chee Min

1989-01-01T23:59:59.000Z

13

Sensitivity analysis techniques for models of human behavior.  

SciTech Connect (OSTI)

Human and social modeling has emerged as an important research area at Sandia National Laboratories due to its potential to improve national defense-related decision-making in the presence of uncertainty. To learn about which sensitivity analysis techniques are most suitable for models of human behavior, different promising methods were applied to an example model, tested, and compared. The example model simulates cognitive, behavioral, and social processes and interactions, and involves substantial nonlinearity, uncertainty, and variability. Results showed that some sensitivity analysis methods create similar results, and can thus be considered redundant. However, other methods, such as global methods that consider interactions between inputs, can generate insight not gained from traditional methods.

Bier, Asmeret Brooke

2010-09-01T23:59:59.000Z

14

Video-Aided Analysis of Zebrafish Locomotion and Anxiety-Related Behavioral Responses  

E-Print Network [OSTI]

Chapter 1 Video-Aided Analysis of Zebrafish Locomotion and Anxiety-Related Behavioral Responses their behavioral phenotypes. Video-aided analysis of zebrafish behavior offers an increased spectrum of behavioral. This protocol describes a method for fast, accurate, and consistent video-aided measurements of zebrafish

Kalueff, Allan V.

15

Video-aided analysis of zebrafish locomotion and anxiety-related behavioral responses  

E-Print Network [OSTI]

1 Video-aided analysis of zebrafish locomotion and anxiety-related behavioral responses Peter R tools that accurately record their behavioral phenotypes. Video-aided analysis of zebrafish behavior and consistent video-aided measurements of zebrafish locomotion and anxiety-related behavior. #12;3 Introduction

Kalueff, Allan V.

16

A LABORATORY FOR FISH BEHAVIOR STUDIES  

E-Print Network [OSTI]

tanks, means for controlling light conditions, and provisions for making chemical analyses. #12 from the enclosed observation platform 4 7. An experimental tank with electrodes installed for studies of fish in an electrical field 4 8. Interior view of the enclosed platform 5 9. An experimental tank

17

Catching fish in the stream: real time analysis of audience behavior in social media  

Science Journals Connector (OSTI)

In this interactive poster, we describe a system we designed for identifying and tracking the behavior of distinct audiences in social media streams. Keywords: audience behavior, real-time analysis, social media

Yu-Ru Lin; Drew Margolin; Brian Keegan; Mauro Martino; Sasha Goodman; David Lazer

2013-02-01T23:59:59.000Z

18

Preliminary analysis of graphite dust releasing behavior in accident for HTR  

SciTech Connect (OSTI)

The behavior of the graphite dust is important to the safety of High Temperature Gas-cooled Reactors. This study investigated the flow of graphite dust in helium mainstream. The analysis of the stresses acting on the graphite dust indicated that gas drag played the absolute leading role. Based on the understanding of the importance of gas drag, an experimental system is set up for the research of dust releasing behavior in accident. Air driven by centrifugal fan is used as the working fluid instead of helium because helium is expensive, easy to leak which make it difficult to seal. The graphite particles, with the size distribution same as in HTR, are added to the experiment loop. The graphite dust releasing behavior at the loss-of-coolant accident will be investigated by a sonic nozzle. (authors)

Peng, W.; Yang, X. Y.; Yu, S. Y.; Wang, J. [Inst. of Nuclear and New Energy Technology, Tsinghua Univ., Beijing100084 (China)

2012-07-01T23:59:59.000Z

19

A study of driver behavior on freeway entrance ramps  

E-Print Network [OSTI]

for assistance in the collection of field data. Gratitude is also expressed to the Automotive Safety Foundation for their having granted the writer an Automotive Safety Foundation Scholarship. SYNQPSiS The study of freeway entrance design has received.... The late Thomas H. McDonald, Commissioner, United States Public Roads Administration, recognized the importance of driver behavior a number of years ago. In an address before the Washing- ton, D. C. Section of the Society of Automotive Engineers...

Edwards, Fred Huntley

2012-06-07T23:59:59.000Z

20

Experts Meeting: Behavioral Economics as Applied to Energy Demand Analysis and Energy Efficiency Programs  

U.S. Energy Information Administration (EIA) Indexed Site

Experts Meeting: Behavioral Economics Experts Meeting: Behavioral Economics as Applied to Energy Demand Analysis and Energy Efficiency Programs EIA Office of Energy Consumption and Efficiency Analysis July 17, 2013 | Washington, DC Meeting Agenda Jim Turnure, Director, Office of Energy Consumption and Efficiency Analysis July 17, 2013 2 * EIA WELCOME AND INTRODUCTION (15 minutes) * ORIENTATION/PRESENTATION: OVERVIEW OF EIA RESIDENTIAL AND COMMERCIAL DEMAND MODELS AND CURRENT METHODS FOR INCORPORATING ENERGY EFFICIENCY/EFFICIENCY PROGRAMS (30 minutes) * ORIENTATION/PRESENTATION: BEHAVIORAL ECONOMICS GENERAL OVERVIEW AND DISCUSSION (45 minutes) * EXPERTS ROUNDTABLE DISCUSSION/BRAINSTROMING: HOW CAN EIA BENEFIT FROM APPLICATION OF BEHAVIORAL ECONOMICS TO RESIDENTIAL AND COMMERCIAL ENERGY DEMAND MODELING?

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Uncertainty and sensitivity analysis of fission gas behavior in engineering-scale fuel modeling  

SciTech Connect (OSTI)

The role of uncertainties in fission gas behavior calculations as part of engineering-scale nuclear fuel modeling is investigated using the BISON fuel performance code and a recently implemented physics-based model for the coupled fission gas release and swelling. Through the integration of BISON with the DAKOTA software, a sensitivity analysis of the results to selected model parameters is carried out based on UO2 single-pellet simulations covering different power regimes. The parameters are varied within ranges representative of the relative uncertainties and consistent with the information from the open literature. The study leads to an initial quantitative assessment of the uncertainty in fission gas behavior modeling with the parameter characterization presently available. Also, the relative importance of the single parameters is evaluated. Moreover, a sensitivity analysis is carried out based on simulations of a fuel rod irradiation experiment, pointing out a significant impact of the considered uncertainties on the calculated fission gas release and cladding diametral strain. The results of the study indicate that the commonly accepted deviation between calculated and measured fission gas release by a factor of 2 approximately corresponds to the inherent modeling uncertainty at high fission gas release. Nevertheless, higher deviations may be expected for values around 10% and lower. Implications are discussed in terms of directions of research for the improved modeling of fission gas behavior for engineering purposes.

G. Pastore; L.P. Swiler; J.D. Hales; S.R. Novascone; D.M. Perez; B.W. Spencer; L. Luzzi; P. Van Uffelen; R.L. Williamson

2014-10-01T23:59:59.000Z

22

Analysis of Role Behavior in Collaborative Network Learning  

Science Journals Connector (OSTI)

In the collaborative learning environment, role behavior brings on occurrence, development, and disappearance of collaborative learning. In this paper, we first introduce WF-net to describe role behavior in collaborative learning, and then indicate relations ... Keywords: Awareness of role, CSCL, Object, WF-net

Xiaoshuang Xu; Jun Zhang; Egui Zhu; Feng Wang; Ruiquan Liao; Kebin Huang

2008-06-01T23:59:59.000Z

23

An experimental and numerical study of wind turbine seismic behavior  

E-Print Network [OSTI]

and dynamic behavior. ” Windpower, Pittsburgh, Pennsylvania,Wind Energy Association WINDPOWER Conference and Exposition,

Prowell, I.

2011-01-01T23:59:59.000Z

24

Large-scale analysis of phylogenetic search behavior  

E-Print Network [OSTI]

search behavior can facilitate the design of better heuristics, which ultimately leads to more accurate depictions of the true evolutionary relationships. In order to access and analyze the tree search space, we implement an effec- tive local search...

Park, Hyun Jung

2009-05-15T23:59:59.000Z

25

Data Smoothing: Prediction of Human Behavior, Detection of Behavioral Patterns, and Monitoring Treatment Effectiveness in Single-Subject Behavioral Studies  

Science Journals Connector (OSTI)

Data-smoothing can be particularly useful in predicting human ... literature, the use of moving-average and exponential data-smoothing aided the detection of the unique behavioral ... treatments....

Georgios D. Sideridis

1997-06-01T23:59:59.000Z

26

Single molecule analysis of RNA polymerase elongation reveals uniform kinetic behavior  

E-Print Network [OSTI]

Single molecule analysis of RNA polymerase elongation reveals uniform kinetic behavior Karen) By using single-molecule measurements, we demonstrate that the elongation kinetics of individual any variation in the behavior of single RNAP molecules as well as the differences that exist between

La Porta, Arthur

27

JOURNAL OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR INCREASED EATING IN RATS DEPRIVED OF RUNNING'  

E-Print Network [OSTI]

JOURNAL OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR INCREASED EATING IN RATS DEPRIVED OF RUNNING' DAVID PREMACK2 AND ANNE J. PREMACK UNIVERSITY OF MISSOURI Daily food intake in rats was temporarily the rat is deprived of a behavior that recurrently comprises a large part of its total daily actiyity

Premack, David

28

User behavior pattern analysis and prediction based on mobile phone sensors  

Science Journals Connector (OSTI)

More and more mobile phones are equipped with multiple sensors today. This creates a new opportunity to analyze users' daily behaviors and evolve mobile phones into truly intelligent personal devices, which provide accurate context-adaptive and individualized ... Keywords: MAST, context-adaptive, individualized, mobile computing, pattern prediction, sensor, user behavior analysis

Jiqiang Song; Eugene Y. Tang; Leibo Liu

2010-09-01T23:59:59.000Z

29

A steady state analysis code for prediction of behavior in loop heat pipes  

E-Print Network [OSTI]

The purpose of this work is to prepare an analysis raphics. code for the prediction of Loop Heat Pipe (LHP) behavior in steady-state operation. The FORTRAN program is then benchmarked with experimental data obtained in two orientations: 1...

Hamm, Trenton Allen

1998-01-01T23:59:59.000Z

30

Analysis of particle behavior in High-Velocity Oxy-Fuel thermal spraying process  

Science Journals Connector (OSTI)

This paper analyzes the behavior of coating particle as well as the gas flow both of inside and outside the High-Velocity Oxy-Fuel (HVOF) thermal spraying gun by using quasi-one-dimensional analysis and numerical...

Hiroshi Katanoda; Kazuyasu Matsuo

2003-08-01T23:59:59.000Z

31

An analysis of bulk agricultural commodity buying behavior in selected developing economies  

E-Print Network [OSTI]

AN ANALYSIS OF BULK AGRICULTURAL COMMODITY BUYING BEHAVIOR IN SELECTED DEVELOPING ECONOMIES A Thesis by Kimberly Renee Moore Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1982 Major Subject: Agricultural Economics AN ANALYSIS OF BULK AGRICULTURAL COMMODITY BUYING BEHAVIOR IN SELECTED DEVELOPING ECONOMIES A Thesis by Kimberly Renee Moore Approved as to style and content by: ( i n o Committee...

Moore, Kimberly Renee

1982-01-01T23:59:59.000Z

32

Atomic-Level Study of Melting Behavior of GaN Nanotubes. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Melting Behavior of GaN Nanotubes. Atomic-Level Study of Melting Behavior of GaN Nanotubes. Abstract: Molecular dynamics simulations with a Stillinger-Weber potential have been...

33

Users’ Help-Seeking Behaviors within the Context of Computer Task Accomplishment: An Exploratory Study.  

E-Print Network [OSTI]

??This study investigated computer users’ help-seeking behaviors within the context of accomplishing a novel and challenging computer task. In addition, this study examined how different… (more)

Wu, Lei

2011-01-01T23:59:59.000Z

34

Emplacement Gantry Gap Analysis Study  

SciTech Connect (OSTI)

To date, the project has established important to safety (ITS) performance requirements for structures, systems, and components (SSCs) based on the identification and categorization of event sequences that may result in a radiological release. These performance requirements are defined within the ''Nuclear Safety Design Bases for License Application'' (NSDB) (BSC 2005 [DIRS 171512], Table A-11). Further, SSCs credited with performing safety functions are classified as ITS. In turn, assurance that these SSCs will perform as required is sought through the use of consensus codes and standards. This gap analysis is based on the design completed for license application only. Accordingly, identification of ITS SSCs beyond those defined within the NSDB are based on designs that may be subject to further development during detail design. Furthermore, several design alternatives may still be under consideration to satisfy certain safety functions, and final selection will not be determined until further design development has occurred. Therefore, for completeness, alternative designs currently under consideration will be discussed throughout this study. This gap analysis will evaluate each code and standard identified within the ''Emplacement Gantry ITS Standards Identification Study'' (BSC 2005 [DIRS 173586]) to ensure each ITS performance requirement is fully satisfied. When a performance requirement is not fully satisfied, a gap is highlighted. This study will identify requirements to supplement or augment the code or standard to meet performance requirements. Further, this gap analysis will identify nonstandard areas of the design that will be subject to a design development plan. Nonstandard components and nonstandard design configurations are defined as areas of the design that do not follow standard industry practices or codes and standards. Whereby, assurance that an SSC will perform as required may not be readily sought though the use of consensus standards. This gap analysis is prepared by the Emplacement and Retrieval (E&R) project team and is intended for the sole use of the Engineering department in work regarding the emplacement gantry. Yucca Mountain Project personnel from the E&R project team should be consulted before use of this gap analysis for purposes other than those stated herein or by individuals other than authorized by the Engineering department.

R. Thornley

2005-05-27T23:59:59.000Z

35

A rapid estimation and sensitivity analysis of parameters describing the behavior of commercial Li-ion batteries including thermal analysis  

Science Journals Connector (OSTI)

Abstract In this work, a methodology based on rigorous model fitting and sensitivity analysis is presented to determine the parameters describing the physicochemical behavior of commercial pouch Li-ion batteries of high-capacity (16 A h), utilized in electric vehicles. It is intended for a rapid estimation of the kinetic and transport parameters, state of charge and health of a Li-ion battery when chemical information is not available, or for a brand new system. A pseudo 2-D model comprised of different contributions reported in the literature is utilized to describe the mass, charge and thermal balances of the cell and porous electrodes; and adapted to the battery chemistry under study. The sensitivity analysis of key model parameters is conducted to determine confidence intervals, using Analysis of Variance (ANOVA) for non-linear models. Also individual multi-parametric sensitivity analysis is conducted to assess the impact of the model parameters on battery voltage. The battery is comprised of multiple cells in parallel containing carbon anodes and LiNi1/3Co1/3Mn1/3O2 (NMC) cathodes with maximum and cut-off voltages of 4.2 and 2.7 V, respectively. Mass and charge transfer limitations during the discharge/charge of the battery are discussed as a function of State of Charge (SOC). A thermal analysis is also conducted to estimate the temperature rise on the surface of the battery. This modeling methodology can be extended to the analysis of other chemistry types of Li-ion batteries, as well as the evaluation of other material phenomena including capacity fade.

Jorge Vazquez-Arenas; Leonardo E. Gimenez; Michael Fowler; Taeyoung Han; Shih-ken Chen

2014-01-01T23:59:59.000Z

36

REMES Tool-chain A Set of Integrated Tools for Behavioral Modeling and Analysis of Embedded  

E-Print Network [OSTI]

components, (ii) a REMES simulator to test timing and resource behavior prior to formal analysis, and (iii and Subject Descriptors I.6.4 [Computing Methodologies]: Simulation and Modeling-- Model Validation and Analysis; D.2.2 [Software Engineering]: Design Tool and Techniques General Terms Design, Performance

Becker, Steffen

37

Analysis of the effect of matrix degradation on fatigue behavior of a graphite/epoxy laminate  

E-Print Network [OSTI]

ANALYSIS OF THE EFFECT OF MATRIX DEGRADATION ON FATIGUE BEHAVIOR OF A GRAPHITE/EPOXY LAMINATE A Thesis by ROBERT THOMAS ARENBURG Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE May 1982 Major Subject: Civil Engineering ANALYSiS OF THE EFFECT OF MATRIX DEGRAOATION ON FATIGUE BEHAVIOR OF A GRAPHITE/EPOXY LAMINATE A Thesis by ROBERT THOMAS ARENBURG Approved as to style and content by: (Chairman...

Arenburg, Robert Thomas

2012-06-07T23:59:59.000Z

38

Study of critical behavior in concrete during curing by application of dynamic linear and nonlinear means  

E-Print Network [OSTI]

a phase change, a critical behavior, from the liquid to solid state. The hardening of concrete causedStudy of critical behavior in concrete during curing by application of dynamic linear and nonlinear behavior, both compressional and shear waves are used in wide band pulse echo mode. Through the value

39

A laboratory study of the friction behavior of granular materials  

E-Print Network [OSTI]

I report on laboratory experiments designed to investigate the microphysical processes that result in rate- and state-dependent friction behavior and experiments designed to match the boundary conditions used by numerical ...

Frye, Kevin M. (Kevin Michael), 1972-

2002-01-01T23:59:59.000Z

40

Los Alamos using NIH grant to study how social behaviors affect...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Can social media messaging impact epidemics? Los Alamos using NIH grant to study how social behaviors affect spread of disease Connecting social media and epidemiological research...

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Analysis and Detection of Bogus Behavior in Web Crawler Measurement  

Science Journals Connector (OSTI)

Abstract With the development of the Internet, search engine technology is becoming more and more popular. Web Crawlers have taken up a great deal of Internet bandwidth. The Internet is filled with “bogus” web crawlers besides Google, Baidu and some other famous search engines. Coded roughly, these crawlers hazard the Internet seriously. Correct analysis of the traffic characteristics of Google web crawler and shielding the “bogus” web crawlers can improve the performance of a site and enhance the quality of service of the network. In this paper, we measured massive of web crawler traffic in the real high speed network, compared the differences of statistical characteristics between Google web crawler and the “bogus” web crawlers. We proposed a model to detect real and “bogus” web crawlers, with accuracy rate of about 95%.

Quan Bai; Gang Xiong; Yong Zhao; Longtao He

2014-01-01T23:59:59.000Z

42

Statistical Analysis of Abnormal Electric Power Grid Behavior  

SciTech Connect (OSTI)

Pacific Northwest National Laboratory is developing a technique to analyze Phasor Measurement Unit data to identify typical patterns, atypical events and precursors to a blackout or other undesirable event. The approach combines a data-driven multivariate analysis with an engineering-model approach. The method identifies atypical events, provides a plane English description of the event, and the capability to use drill-down graphics for detailed investigations. The tool can be applied to the entire grid, individual organizations (e.g. TVA, BPA), or specific substations (e.g., TVA_CUMB). The tool is envisioned for (1) event investigations, (2) overnight processing to generate a Morning Report that characterizes the previous days activity with respect to previous activity over the previous 10-30 days, and (3) potentially near-real-time operation to support the grid operators. This paper presents the current status of the tool and illustrations of its application to real world PMU data collected in three 10-day periods in 2007.

Ferryman, Thomas A.; Amidan, Brett G.

2010-10-30T23:59:59.000Z

43

Copper(I) Cyanide Networks: Synthesis, Luminescence Behavior and Thermal Analysis. Part 1. Diimine Ligands  

E-Print Network [OSTI]

materials derived from copper(I) halides.3 However, the resistance of copper(I) halides toward oxidationCopper(I) Cyanide Networks: Synthesis, Luminescence Behavior and Thermal Analysis. Part 1. Diimine are noted for the novel 4- and 5-coordinate Cu2- (CN)2 dimers. Thermal analyses show that most

Pike, Robert D.

44

Preliminary analysis of fission gas behavior and fuel response during an LMFBR operational transient  

SciTech Connect (OSTI)

This summary presents results obtained from a preliminary analysis of gas behavior and oxide fuel response during an LMFBR operational transient. The DiMelfi and Deitrich model is extrapolated to operational transient regimes to delineate brittle versus ductile fuel response modes. All pertinent parameters necessary for application of the DiMelfi and Deitrich model were obtained from the LIFE-3 code.

Liu, Y.Y.

1983-01-01T23:59:59.000Z

45

Introductory comments: Applied behavior analysis in crime and delinquency: Focus on prevention  

E-Print Network [OSTI]

1988-23278-001); L. Bank et al (see record 1988-24459-001); and J. D. Burchard (see record 1988-23249-001). It is suggested that behavior analysis is one of the most optimistic alternatives for understanding and correcting crime and delinquency....

Morris, Edward K.

1987-01-01T23:59:59.000Z

46

Dynamic behavior analysis for a six axis industrial machining BISU Claudiu1,a  

E-Print Network [OSTI]

Dynamic behavior analysis for a six axis industrial machining robot BISU Claudiu1,a , CHERIF Mehdi2-yves.knevez@u-bordeaux1.fr Abstract The six axis robots are widely used in automotive industry for their good repeatability (as defined in the ISO92983) (painting, welding, mastic deposition, handling etc

Paris-Sud XI, Université de

47

Analysis of the Behavior of Electric Vehicle Charging Stations with Renewable Generations  

E-Print Network [OSTI]

engine vehicles refuel at gas stations, EVs might also be charged at other facilities which provideAnalysis of the Behavior of Electric Vehicle Charging Stations with Renewable Generations Woongsup between electric vehicle charging stations (EVCSs) with renewable electricity generation facilities (REGFs

Wong, Vincent

48

Measuring eating disorder attitudes and behaviors: a reliability generalization study  

E-Print Network [OSTI]

I used reliability generalization procedures to determine the mean score reliability of the Eating Disorder Inventory (EDI), the Eating Attitudes Test (EAT), and the Bulimia Test (BULIT). Reliability generalization is a type of meta-analysis used...

Pearson, Crystal Anne

2009-05-15T23:59:59.000Z

49

A study of the pyrolysis behaviors of pelletized recovered municipal solid waste fuels  

Science Journals Connector (OSTI)

Pelletized recovered solid waste fuel is often applied in gasification systems to provide feedstock with a stabilized quality and high heating value and to avoid the bridging behavior caused by high moisture content, low particle density, and irregular particle size. However, the swelling properties and the sticky material generated from pyrolysis of the plastic group components also tend to trigger bridging in the retorting zone. It is well known that the plastic group materials, which occupy a considerable proportion of municipal solid waste, can melt together easily even under low temperature. This study investigates the pyrolysis behaviors of typical recovered solid waste pellets, including the devolatilization rate, heat transfer properties, char properties, and swelling/shrinkage properties, in a small fixed-bed facility over a wide temperature range, from 900 °C to 450 °C. The results are also compared with those from wheat straw pellets, a typical cellulosic fuel. Moreover, the SEM images and BET analysis of the char structure are further analyzed to provide additional explanation for the mechanisms of swelling/shrinkage phenomena observed during heating.

Chunguang Zhou; Qinglin Zhang; Leonie Arnold; Weihong Yang; Wlodzimierz Blasiak

2013-01-01T23:59:59.000Z

50

A computational study of nodal-based tetrahedral element behavior.  

SciTech Connect (OSTI)

This report explores the behavior of nodal-based tetrahedral elements on six sample problems, and compares their solution to that of a corresponding hexahedral mesh. The problems demonstrate that while certain aspects of the solution field for the nodal-based tetrahedrons provide good quality results, the pressure field tends to be of poor quality. Results appear to be strongly affected by the connectivity of the tetrahedral elements. Simulations that rely on the pressure field, such as those which use material models that are dependent on the pressure (e.g. equation-of-state models), can generate erroneous results. Remeshing can also be strongly affected by these issues. The nodal-based test elements as they currently stand need to be used with caution to ensure that their numerical deficiencies do not adversely affect critical values of interest.

Gullerud, Arne S.

2010-09-01T23:59:59.000Z

51

Chemical systems for improved oil recovery: Phase behavior, oil recovery, and mobility control studies  

SciTech Connect (OSTI)

Selected surfactant systems containing a series of ethoxylated nonionic surfactants in combination with an anionic surfactant system have been studied to evaluate phase behavior as well as oil recovery potential. These experiments were conducted to evaluate possible improved phase behavior and overall oil recovery potential of mixed surfactant systems over a broad range of conditions. Both polyacrylamide polymers and Xanthan biopolymers were evaluated. Studies were initiated to use a chemical flooding simulation program, UTCHEM, to simulate oil recovery for laboratory and field applications and evaluate its use to simulate oil saturation distributions obtained in CT-monitoring of oil recovery experiments. The phase behavior studies focused on evaluating the effect of anionic-nonionic surfactant proportion on overall phase behavior. Two distinct transition behaviors were observed, depending on the dominant surfactant in the overall system. The first type of transition corresponded to more conventional behavior attributed to nonionic-dominant surfactant systems. This behavior is manifested by an oil-water-surfactant system that inverts from a water-external (highly conducting) microemulsion to an oil-external (nonconducting) one, as a function of temperature. The latter type which inverts in an opposite manner can be attributed to the separation of the anionic-nonionic mixtures into water- and oil-soluble surfactants. Both types of transition behavior can still be used to identify relative proximity to optimal areas. Determining these transition ranges provided more insight on how the behavior of these surfactant mixtures was affected by altering component proportions. Efforts to optimize the chemical system for oil displacement experiments were also undertaken. Phase behavior studies with systems formulated with biopolymer in solution were conducted.

Llave, F.; Gall, B.; Gao, H., Scott, L., Cook, I.

1995-09-01T23:59:59.000Z

52

Analysis of behavior of selected dabbling ducks wintering near Seadrift, Texas  

E-Print Network [OSTI]

OF SCIENCE August 1984 Major Subject; Wildlife and Fisheries Sciences ANALYSIS OF BEHAVIOR OF SELECTED DABBLING DUCKS WINTERING NEAR SEADRIFT, TEXAS. A Thesis by CATHRIN JEAN ASH RYAN Approved as to style and content by: L os Folse (Chairman... into the effects of environmental conditions on waterfowl. Wind velocity and relative This thesis follows the style of the Journal of Wildlife Management humidity are major factors which cause stress in green- winged teal (Anas crecca carolinensis) (Bennett...

Ryan, Cathrin Jean Ash

2012-06-07T23:59:59.000Z

53

Managerial Coaching Behavior and Employee Outcomes: A Structural Equation Modeling Analysis  

E-Print Network [OSTI]

‘s alpha estimates for reliability, correlation analysis, two-step modeling techniques for structural equation modeling, and Sobel tests were the analysis methods used in the study. The results of the analyses indicated that the hypothesized conceptual...

Kim, Sewon

2012-10-19T23:59:59.000Z

54

Study of Density Behavior During LHCD and IBW Heating in the HT-7 Superconducting Tokamak  

Science Journals Connector (OSTI)

A new method using special shape parameters has been introduced to study density behavior with synergy of lower hybrid current drive (LHCD) and ion Bernstein wave (IBW) heating in the HT-7 superconducting tokamak

M. Asif; X. Gao

2004-09-01T23:59:59.000Z

55

An Atomistic Study of the Mechanical Behavior of Carbon Nanotubes and Nanocomposite Interfaces  

E-Print Network [OSTI]

The research presented in this dissertation pertains to the evaluation of stiffness of carbon nanotubes (CNTs) in a multiscale framework and modeling of the interfacial mechanical behavior in CNT-polymer nanocomposites. The goal is to study...

Awasthi, Amnaya P.

2011-02-22T23:59:59.000Z

56

Studying rheological behavior of nanoclay as oil well drilling fluid  

Science Journals Connector (OSTI)

Bentonite is commonly used to control the rheology and filtrate loss required for water-based drilling fluids. In this study, the effect ... modification on fluid viscosity and its dispersion in oil-wet fluids we...

M. Mohammadi; M. Kouhi; A. Sarrafi; M. Schaffie

2013-09-01T23:59:59.000Z

57

A parametric study of thermomechanical behavior of functionally gradient materials  

E-Print Network [OSTI]

(FSDT) that accounts for the transverse shear strains and the rotations, coupled with a three dimensional heat conduction equation is formulated for a functionally gradient plate. Both problems are studied by varying the volume fraction of a ceramic...

Chin, Che-Doong

1996-01-01T23:59:59.000Z

58

Exploratory factor analysis in behavior genetics research: Factor recovery with small sample sizes  

E-Print Network [OSTI]

Results of a Monte Carlo study of exploratory factor analysis demonstrate that in studies characterized by low sample sizes the population factor structure can be adequately recovered if communalities are high, model error ...

Preacher, K. J.; MacCallum, R. C.

2002-01-01T23:59:59.000Z

59

Dilatation-strain analysis of the effects of flaws on the mechanical behavior of a highly filled elastomer  

E-Print Network [OSTI]

DILATATION-STRAIN ANALYSIS OF THE EFFECTS OF FLANS ON THE MECHANICAL BEHAVIOR OF A HIGHLY FILLED ELASTOMER A Thesis By BENJAMIN RAY SMITH Submitted to the Graduate College of the Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 1966 Major Subject. 'Aerospace Engineering DILATATION-STRAIN ANALYSIS OF THE EFFECTS OF FLAWS ON THE MECHANICAL BEHAVIOR OF A HIGHLY FILLED ELASTOMER A Thesis By BENJAMIN RAY SMITH Approved...

Smith, Benjamin Ray

2012-06-07T23:59:59.000Z

60

The Groningen assisted reproductive technologies cohort study: developmental status and behavior at 2 years  

Science Journals Connector (OSTI)

Objective To evaluate whether children’s cognitive and psychomotor development and behavior at 2 years are affected by ovarian hyperstimulation and the IVF laboratory procedures or subfertility. Design Prospective longitudinal cohort study. Setting University Medical Center Groningen, the Netherlands. Patient(s) Singletons born after controlled ovarian hyperstimulation (COH)–IVF (n = 66) and modified natural cycle–IVF (n = 56), singletons born to subfertile couples who conceived naturally (subfertile–naturally conceived, n = 87), and a reference group of 101 2-year-old singletons born to fertile couples. Intervention(s) None. Main Outcome Measure(s) Bayley Scales of Infant Development and Achenbach Child Behavior Checklist. Result(s) Mental and psychomotor development and behavioral outcome in COH-IVF, modified natural cycle–IVF, and subfertile–natural cycle groups was not different. Developmental outcome and behavior of the subfertile groups were largely similar to those of the fertile reference group. Nevertheless, the subfertile groups scored higher on the scale of anxious-depressed behavior than the reference group. Conclusion(s) This present relatively small study found no differences in cognitive and psychomotor development and behavior at 2 years in children born after COH-IVF or modified natural cycle–IVF or naturally conceived children of subfertile parents. Replication of the study is needed before firm conclusions can be drawn. Furthermore, long-term follow-up is needed to confirm these findings in older children.

Marjolein Jongbloed-Pereboom; Karin J. Middelburg; Maas Jan Heineman; Arend F. Bos; Mijna Hadders-Algra

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Using medaka embryos as a model system to study biological effects of the electromagnetic fields on development and behavior  

Science Journals Connector (OSTI)

Abstract The electromagnetic fields (EMFs) of anthropogenic origin are ubiquitous in our environments. The health hazard of extremely low frequency and radiofrequency \\{EMFs\\} has been investigated for decades, but evidence remains inconclusive, and animal studies are urgently needed to resolve the controversies regarding developmental toxicity of EMFs. Furthermore, as undersea cables and technological devices are increasingly used, the lack of information regarding the health risk of \\{EMFs\\} to aquatic organisms needs to be addressed. Medaka embryos (Oryzias latipes) have been a useful tool to study developmental toxicity in vivo due to their optical transparency. Here we explored the feasibility of using medaka embryos as a model system to study biological effects of \\{EMFs\\} on development. We also used a white preference test to investigate behavioral consequences of the EMF developmental toxicity. Newly fertilized embryos were randomly assigned to four groups that were exposed to an EMF with 3.2 kHz at the intensity of 0.12, 15, 25, or 60 µT. The group exposed to the background 0.12 µT served as the control. The embryos were exposed continually until hatch. They were observed daily, and the images were recorded for analysis of several developmental endpoints. Four days after hatching, the hatchlings were tested with the white preference test for their anxiety-like behavior. The results showed that embryos exposed to all three levels of the EMF developed significantly faster. The endpoints affected included the number of somites, eye width and length, eye pigmentation density, midbrain width, head growth, and the day to hatch. In addition, the group exposed to the EMF at 60 µT exhibited significantly higher levels of anxiety-like behavior than the other groups did. In conclusion, the EMF tested in this study accelerated embryonic development and heightened anxiety-like behavior. Our results also demonstrate that the medaka embryo is a sensitive and cost-efficient in vivo model system to study developmental toxicity of EMFs.

Wenjau Lee; Kun-Lin Yang

2014-01-01T23:59:59.000Z

62

Political science is the study of governments, political processes, public policies and political behavior by groups  

E-Print Network [OSTI]

Political science is the study of governments, political processes, public policies and political behavior by groups or individuals. Coursework is divided into four areas of study: American Politics. U.S. political institutions at the national level (e.g., Congress, Presidency, Judiciary), state and local

Saldin, Dilano

63

Studying the sintering behavior of BeO{sub x}-SiC{sub 1-x} Composite ceramic Material  

SciTech Connect (OSTI)

The sintering behavior for BeO-SiC compacts composite ceramic at different sintering temperatures in air were conducted, resulting data indicated that the percentage of SiC (Wt% 5) sintered at 800 C deg. lead to higher sintering density of (1.80 gm/cm3). The x-ray diffraction pattern analysis indicated nothing change concerning the crystal structure. Microstructure development has been studied as a function SiC content. Silicon carbide found to be suppressed the sinter ability of the matrix BeO powder.

Issa, Tarik Talib [Department of physics, College of Science, University of Baghdad, Jadiriya, Baghdad (Iraq)

2011-12-26T23:59:59.000Z

64

Modeling and numerical analysis of the bond behavior of masonry elements strengthened with SRP/SRG  

Science Journals Connector (OSTI)

Abstract Steel Reinforced Polymers (SRPs) and Steel Reinforced Grout (SRG) strengthening systems have been recently introduced as an alternative solution to the traditional systems based on the use of fiber reinforced polymers materials (FRPs). Few studies on SRP/SRG are available in the current literature and all have shown the potentialities of SRP/SRG in improving structural performances of masonry and concrete elements and, at the same time, their difference with respect to \\{FRPs\\} particularly in terms of bond behavior. Aim of the present paper is to propose a simple approach devoted to study the bond behavior of masonry structures strengthened with SRP/SRG systems. The approach, based on experimental evidences and theoretical considerations mainly consists of deriving approximate bond stress-slip laws for the strengthening/support interface layer, able to reproduce the local bond stresses transferring mechanism. Finite Element (FE) analyses are then developed with reference to the experimental tests available in the current literature by adopting the bond stress-slip laws obtained through the proposed approach. The deduced results show the reliability of the proposed approach in simulating the bond behavior of masonry elements strengthened with SRP/SRG and the possibility to investigate further peculiarities characterizing this kind of strengthening systems.

Ernesto Grande; Maura Imbimbo; Elio Sacco

2013-01-01T23:59:59.000Z

65

Mechanical Behavior Studies of Depleted Uranium in the Presence of Hydrides  

SciTech Connect (OSTI)

This project addresses critical issues related to aging in the presence of hydrides (UH{sub 3}) in DU and the subsequent effect on mechanical behavior. Rolled DU specimens with three different hydrogen concentrations and the as-rolled condition were studied. The texture measurements indicate that the hydrogen charging is affecting the initial as-rolled DU microstructure/texture. The macroscopic mechanical behavior suggests the existence of a threshold between the 0 wpmm H and 0.3 wppm H conditions. A VPSC simulation of the macroscopic strain-stress behavior, when taking into account only a texture effect, shows no agreement with the experiment. This suggests that the macroscopic mechanical behavior observed is indeed due to the presence of hydrogen/hydrides in the DU bulk. From the lattice strain variation it can be concluded that the hydrogen is affecting the magnitude and/or the nature of CRSS. The metallography indicates the specimens that underwent the hydrogen charging process, developed large grains and twinning, which were enhanced by the presence of hydrogen. Further studies using electron microscopy and modeling will be conducted to learn about the deformation mechanisms responsible for the observed behavior.

Garlea, E.; Morrell, J. S.; Bridges, R. L.; Powell, G. L.; Brown, d. W.; Sisneros, T. A.; Tome, C. N.; Vogel, S. C.

2011-02-14T23:59:59.000Z

66

Cognitive behavioral therapy for insomnia in breast cancer survivors : randomized controlled crossover study  

E-Print Network [OSTI]

C. , & Bouchard, S. (2004). Cognitive-behavioral therapy forQuillian, R. E. (2001). Cognitive behavioral therapy forT. , & Posner, D. (2005). Cognitive behavioral treatment of

Fiorentino, Lavinia

2008-01-01T23:59:59.000Z

67

Neutron diffraction study of the contribution of grain contacts to nonlinear stress-strain behavior  

E-Print Network [OSTI]

Neutron diffraction study of the contribution of grain contacts to nonlinear stress-strain behavior performed simultaneous neutron diffraction and quasi-static loading experiments on a selection of rocks to experimentally isolate the response of these contact regions. Neutron diffraction measures strain in the lattice

68

EXPERIMENTAL & NUMERICAL STUDY OF CERAMIC BREEDER PEBBLE BED THERMAL DEFORMATION BEHAVIOR  

E-Print Network [OSTI]

EXPERIMENTAL & NUMERICAL STUDY OF CERAMIC BREEDER PEBBLE BED THERMAL DEFORMATION BEHAVIOR Zhiyong involved in ceramic breeder pebble bed thermal deformation are complex. First, unlike solid material.25 and 0.63 mm) at temperatures of 700-800ºC. The experimental results show that the thermal deformation

Abdou, Mohamed

69

Anodic Behavior of Ti in KOH Solutions Ellipsometric and Micro-Raman Spectroscopy Studies  

E-Print Network [OSTI]

Anodic Behavior of Ti in KOH Solutions Ellipsometric and Micro-Raman Spectroscopy Studies A. Prusi of South Carolina, Columbia, South Carolina 29208, USA Anodic formation of oxide films on titanium surfaces of refraction of anodic oxide films have been determined. The voltage at which the oxide film breaks down

Popov, Branko N.

70

Study of fire retardant behavior of carbon nanotube membranes and carbon nanofiber paper in carbon fiber  

E-Print Network [OSTI]

were incorporated onto the surface of epoxy carbon fiber composites, as proposed fire shieldsStudy of fire retardant behavior of carbon nanotube membranes and carbon nanofiber paper in carbon fiber reinforced epoxy composites Qiang Wu, Wei Zhu, Chuck Zhang *, Zhiyong Liang, Ben Wang Department

Das, Suman

71

A study on the locality behavior of minimum spanning tree algorithms  

Science Journals Connector (OSTI)

Locality behavior study is crucial for achieving good performance for irregular problems. Graph algorithms with large, sparse inputs, for example, oftentimes achieve only a tiny fraction of the potential peak performance on current architectures. Compared ... Keywords: graph algorithm, memory locality, minimum spanning tree

Guojing Cong; Simone Sbaraglia

2006-12-01T23:59:59.000Z

72

Domino of the Smart Grid: An Empirical Study of System Behaviors in the Interdependent Network  

E-Print Network [OSTI]

1 Domino of the Smart Grid: An Empirical Study of System Behaviors in the Interdependent Network and Limin Sun, Member, IEEE Abstract--The smart grid features a unique network architec- ture that consists bring more threats of cascading failures to the smart grid against the system reliability, which

Wang, Wenye

73

Niobium hydride phase behavior studied using the cluster-variation method  

Science Journals Connector (OSTI)

We present several models for NbH phase behavior based on the cluster-variation method. The most important of these are the single-tetragonal-cell (STC) model and the twelve-cluster (TWC) model, which have as their basic clusters the single tetragonal cell and a twelve-sited cluster, respectively. The following conclusions can be drawn from our study of these models. From the STC ground-state analysis we find that, for interactions confined to the single tetragonal cell (a subset of the first 14 shells for the tetrahedral lattice), (1) it is possible to predict the ? and ? phases but not the ? phase, and (2) many-body interactions are needed to eliminate an extraneous pure phase (i.e., a phase that is not observed experimentally) at concentration [H]/[Nb]=0.25, assuming the ?, ?’, and ? phases are ground states. These observations suggest that longer-range interactions than those in the STC are important for NbH phase formation and many-body interactions may be necessary to eliminate unwanted phases at lower concentrations. We have also generated phase diagrams that are qualitatively similar (in the ordered regions) to experimental NbH phase diagrams. Our study of the TWC model shows that it is more accurate in comparison with a Monte Carlo model than the existing entropy approximations of Boureau, Richards, and MacGillivray, Soteros, and Hall. Furthermore, using the TWC model it is possible to predict an ?-?’-? phase envelope that compares well with the Futran and Hall Monte Carlo calculation. This is the first analytic free-energy calculation to predict the ?-?’-? transition. Using the TWC model we also show that, as Shirley and Hall have conjectured, many-body interactions work to lower the ?-?’ critical temperature when compared with calculations including only pair interactions. Since pair-interaction calculations overestimate the critical temperature, this is further evidence of the importance of many-body interactions.

Christine E. Soteros and Carol K. Hall

1990-10-01T23:59:59.000Z

74

Reconciling Human Smoking Behavior and Machine Smoking Patterns: Implications for Understanding Smoking Behavior and the Impact on Laboratory Studies  

Science Journals Connector (OSTI)

...that included all of the other health behaviors as independent variables...vaccination: challenges for public health and implications for screening. Vaccine 2007...Angeles (CA): UCLA Center for Health Policy Research; 2009. 8 Reiter...

Catalin Marian; Richard J. O'Connor; Mirjana V. Djordjevic; Vaughan W. Rees; Dorothy K. Hatsukami; and Peter G. Shields

2009-12-01T23:59:59.000Z

75

Colorado Vehicle Fleets Case Study Analysis  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Experiences with Compressed Natural Gas in Experiences with Compressed Natural Gas in Colorado Vehicle Fleets Case Study Analysis August 2012 Case Study Analysis August 2012 2 Acknowledgements The Colorado Energy Office would like to thank the following individuals and organizations for their participation in the case studies: Jay Valentine, City of Grand Junction Joseph Noorlag, Republic Services Victor Lovato, Denver International Airport The Colorado Energy Office would also like to thank the following people for their review and input to this document: Wendy DaFoe, National Renewable Energy Laboratory John Gonzales, National Renewable Energy Laboratory Alexine Hazarian, Encana Natural Gas Inc. Paul Kerkhoven, NGV America Charlie Kerr, Cummins-Westport Inc. Sheble McConnellogue, Northern Colorado Clean Cities

76

Study of cluster behavior in the riser of CFB by the DSMC method  

Science Journals Connector (OSTI)

The flow behaviors of clusters in the riser of a two?dimensional (2D) circulating fluidized bed was numerically studied based on the Euler?Lagrangian approach. Gas turbulence was modeled by means of Large Eddy Simulation (LES). Particle collision was modeled by means of the direct simulation Monte Carlo (DSMC) method. Clusters’ hydrodynamic characteristics are obtained using a cluster identification method proposed by sharrma et al. (2000). The descending clusters near the wall region and the up? and down?flowing clusters in the core were studied separately due to their different flow behaviors. The effects of superficial gas velocity on the cluster behavior were analyzed. Simulated results showed that near wall clusters flow downward and the descent velocity is about ?45? cm / s . The occurrence frequency of the up?flowing cluster is higher than that of down?flowing cluster in the core of riser. With the increase of superficial gas velocity the solid concentration and occurrence frequency of clusters decrease while the cluster axial velocity increase. Simulated results were in agreement with experimental data. The stochastic method used in present paper is feasible for predicting the cluster flow behavior in CFBs.

H. P. Liu; D. Y. Liu; H. Liu

2010-01-01T23:59:59.000Z

77

A SPECTROSCOPIC STUDY OF IMPURITY BEHAVIOR IN NEUTRAL-BEAM AND OHMICALLY HEATED  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

SPECTROSCOPIC STUDY OF IMPURITY BEHAVIOR SPECTROSCOPIC STUDY OF IMPURITY BEHAVIOR IN NEUTRAL-BEAM AND OHMICALLY HEATED TFTR DISCHARGES PPPL--2410 DE87 008073 B.C. Stratton, A.T. Ramsey, F.P. Boody, C.E. Busht, R.J. Fonck, R.J. Groebner", R.A. Hulse, R.K. Richardst, and J. Schivell Princeton Plasma Physics Laboratory Princeton, New Jersey 08544 t permanent address: Oak Ridge National Laboratory, Oak Ridge, TN * permanent address: GA Technologies Inc., San Diego, CA c DISCLAIMER B This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or

78

AKUFVE studies on extraction behavior of neptunium from simulated HLW solutions by 30% TBP  

SciTech Connect (OSTI)

The extraction behavior of neptunium from 3 M nitric acid as well as simulated pressurized heavy water reactor high level radioactive waste (PHWR-HLW) solution by 30% TBP/dodecane was studied using AKUFVE. Np(IV)/Np(V) was oxidized to Np(VI) using oxidizing agents, such as K{sub 2}Cr{sub 2}O{sub 7}, VO{sub 2}{sup +} and NaNO{sub 2}. Stripping of neptunium from the loaded TBP phase was studied using reducing agents like hydrogen peroxide, ascorbic acid, hydroxylamine hydrochloride and hydrazine sulfate. Results of these extraction and stripping studies have been discussed in this paper.

Chitnis, R.R.; Wattal, P.K.; Murali, M.S.; Nair, G.C.; Mathur, J.N. [Bhabha Atomic Research Centre, Bombay (India)

1998-07-01T23:59:59.000Z

79

ANALYSIS OF THE SHEAR BEHAVIOR OF RAIL PAD ASSEMBLIES AS A COMPONENT OF THE CONCRETE SLEEPER FASTENING SYSTEM  

E-Print Network [OSTI]

Fastening System RAIL PAD ASSEMBLY LATERAL DISPLACEMENT FAILURE MODE AND EFFECT ANALYSIS (FMEA) INTRODUCTION life · FMEA is used to define, identify, evaluate and eliminate potential failures from the system · FMEA was used to guide the process of answering questions related to the component behavior and also

Barkan, Christopher P.L.

80

Analysis of Dynamic Behavior of a Thermally Coupled Distillation Column Implemented on a Process with Recycles  

Science Journals Connector (OSTI)

Abstract Nowadays, the installation and operation of systems with minimum energy and material consumption is a main objective in the industrial ambit; this goal can be achieved through the implementation of recycle streams to recover raw materials and the use of energy integration techniques to minimize utilities requirements. However, when a process is highly integrated, e.g. processes with recycle streams and energy integration or thermal couplings, systems can present control problems. Several studies for Reactor-Separation-Recycle (RSR) systems using separation systems with conventional distillation columns have been reported, but few works have focused on energy-integrated columns or thermally coupled distillation sequences. This work presents a comparison between the dynamic behavior of a thermally coupled distillation column with side rectifier implemented within a RSR system and that obtained with a conventional distillation sequence.

D. Mascote-Pérez; A. Sánchez-Hijar; N. Ramírez-Corona; A. Jiménez-Gutierrez

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Experimental Study of Thermal Performance and the Contribution of Plant-Covered Walls to the Thermal Behavior of Building  

Science Journals Connector (OSTI)

Abstract This paper presented on experimental investigation of the influence of plant-covered wall on the thermal behavior of buildings in the semi-arid regions during the summer period. Thermal performance of a green walls system on facade walls has been experimentally investigated in a test room. The test cell dimensions are 1x1.2x0.8 m. In this study the thermal analysis concerns two test cells that incorporate non-covered and covered with two types of plants (Jasmine and Aristolochia). A Light source is used to simulate solar radiation. The results showed that plant cover improved indoor thermal comfort in both summer, and reduced heat gains and losses through the wall structure. It is verified that a microclimate between the wall of the test cell and the green wall is created, and it is characterized by slightly lower temperatures and higher relative humidity.

Saifi Nadia; Settou Noureddine; Necib Hichem; Damene Djamila

2013-01-01T23:59:59.000Z

82

Comparative study on the corrosion behavior of TiNb and TMA alloys for dental application in various artificial solutions  

E-Print Network [OSTI]

Comparative study on the corrosion behavior of Ti­Nb and TMA alloys for dental application 2011 Keywords: Ti­Nb alloy TMA Corrosion Fluoride Artificial saliva The corrosion behavior of Ti the corrosion resistance of experimental alloys, with the corroded surface being further characterized

Zheng, Yufeng

83

Analysis of thermomechanical and failure behavior of refractory linings in a high temperature black liquor gasifier .  

E-Print Network [OSTI]

??"A coupled thermal-mechanical model accounting for chemical reaction is developed and implemented into a commercial finite element code to simulate the operational behavior of a… (more)

Liang, Xiaoting, 1975-

2005-01-01T23:59:59.000Z

84

Experimental study of hot deformation behavior in API X65 steel  

Science Journals Connector (OSTI)

The hot deformation behavior of API X65 steel was investigated by hot compression tests. A temperature range between 950 and 1150 °C was used for experiments with different strain rates of 0.01, 0.1 and 1 s?1. The obtained flow curves were used together with work hardening rate analyses to study the dynamic recrystallization (DRX) behavior of the tested steel. The retardation of DRX in higher Zener–Hollomon parameter (Z) values was observed. In lower Z values however, transition from single peak DRX to multiple peaks DRX occurred. Different constitutive equations, including the power law, the exponential law and the hyperbolic sine law were used to express the Z parameter as a function of the peak stress. A new procedure was proposed to determine the optimum value of stress multiplier (?) in the hyperbolic sine law equation. This equation with the proposed procedure had the best performance for modeling the DRX behavior of API X65 steel. Furthermore, the relationship between the Z parameter and the peak stress was investigated using the power law relation. This gave the Z exponent of 0.173 for peak stress and 0.153 for peak strain. The normalized critical stress and strain for initiation of DRX were found to be 0.89 and 0.6, respectively. The obtained results are in general consistent with the experimental results from similar works.

M. Rakhshkhorshid; S.H. Hashemi

2013-01-01T23:59:59.000Z

85

Visualization study of bubble behavior in a subcooled flow boiling channel under rolling motion  

Science Journals Connector (OSTI)

Abstract Boiling heat transfer equipment in a vessel can be affected by the additional force which is generated by the rolling, swing and heaving motion of the vessel. Bubble behavior is very important for the research of boiling phenomenon. Bubble behavior under rolling motion condition is experimentally studied by using a high speed camera. The experiment is conducted in a subcooled flow boiling rectangular channel, and the cross section size of the channel is 2 mm × 40 mm. Two types of bubbles with large discrepancies in sliding and condensation behaviors can be observed in the captured images. The first type bubbles disappear quickly after generation and the slide distance is only a few times of bubble maximum diameter, while the second type bubbles can survive a longer time after leaving the nucleation site and slide for a long distance with the flowing fluid. Bubble characteristics under rolling motion are separately studied for different type bubbles based on the above reasons. The results show that the lifetime, maximum diameter, nucleation frequency and sliding velocity of the first type bubble are periodically fluctuated and the period is same with the rolling motion. The fluctuation intensity of the bubble lifetime and maximum diameter can be enhanced by the increase of the rolling amplitude. The peak value of bubble lifetime, maximum diameter, and nucleation frequency appears when the rolling platform plate rolls to the maximum positive angle, while opposite trend can be observed in the variation of bubble sliding velocity. In view of the characteristics of the second type bubbles, lifetime and maximum diameter are not measured. And the variation of nucleation frequency and sliding velocity of the second type bubbles under the effect of rolling motion is same with the first type bubbles. Furthermore, the effects of additional force, variation of local pressure and flow rate oscillation on bubble behavior are analyzed. The results indicate that the fluctuations of the bubble parameters can be generated by the variation of local pressure caused by rolling motion even no influential flow rate fluctuation occurs. The effect of the acceleration variation vertical to the heated surface on bubble behavior is unclear and need more researches in the future work.

Shaodan Li; Sichao Tan; Chao Xu; Puzhen Gao

2015-01-01T23:59:59.000Z

86

Interface behavior study of WC92–Co8 coating produced by electrospark deposition  

Science Journals Connector (OSTI)

WC92–Co8 coating produced by electrospark deposition effectively improves the surface performance of the substrate. The behavior of the interface between the WC92–Co8 coating and the substrate is studied in this paper. The high-melting-point WC92–Co8 was deposited onto the surface of Ti alloy, and the coating was usually more than 50 ?m thick. The surface of the coating is mainly composed of TiC and W2C besides a small amount of W, and its micro hardness reaches HV1129. The coating dramatically improves the performance of the substrate.

Wang Ruijun; Qian Yiyu; Liu Jun

2005-01-01T23:59:59.000Z

87

A study on the dynamic combustion behavior of a biomass fuel bed  

Science Journals Connector (OSTI)

Abstract The main objective of this research was to study fuel bed combustion dynamics of a BioGrate boiler with a mechanistic model. First, the fuel specific pyrolysis reaction rates were experimentally determined for the model. Second, the model was validated and finally, it was used to investigate the effects of the primary air flows on drying, pyrolysis and char consumption rates occurring inside the fuel bed. The research results are presented and the role of the dynamic behavior of the reactions on the biomass combustion process discussed.

Alexandre Boriouchkine; Vida Sharifi; Jim Swithenbank; Sirkka-Liisa Jämsä-Jounela

2014-01-01T23:59:59.000Z

88

Phase Behavior, Solid Organic Precipitation, and Mobility Characterization Studies in Support of Enhanced Heavy Oil Recovery on the Alaska North Slope  

SciTech Connect (OSTI)

The medium-heavy oil (viscous oil) resources in the Alaska North Slope are estimated at 20 to 25 billion barrels. These oils are viscous, flow sluggishly in the formations, and are difficult to recover. Recovery of this viscous oil requires carefully designed enhanced oil recovery processes. Success of these recovery processes is critically dependent on accurate knowledge of the phase behavior and fluid properties, especially viscosity, of these oils under variety of pressure and temperature conditions. This project focused on predicting phase behavior and viscosity of viscous oils using equations of state and semi-empirical correlations. An experimental study was conducted to quantify the phase behavior and physical properties of viscous oils from the Alaska North Slope oil field. The oil samples were compositionally characterized by the simulated distillation technique. Constant composition expansion and differential liberation tests were conducted on viscous oil samples. Experiment results for phase behavior and reservoir fluid properties were used to tune the Peng-Robinson equation of state and predict the phase behavior accurately. A comprehensive literature search was carried out to compile available compositional viscosity models and their modifications, for application to heavy or viscous oils. With the help of meticulously amassed new medium-heavy oil viscosity data from experiments, a comparative study was conducted to evaluate the potential of various models. The widely used corresponding state viscosity model predictions deteriorate when applied to heavy oil systems. Hence, a semi-empirical approach (the Lindeloff model) was adopted for modeling the viscosity behavior. Based on the analysis, appropriate adjustments have been suggested: the major one is the division of the pressure-viscosity profile into three distinct regions. New modifications have improved the overall fit, including the saturated viscosities at low pressures. However, with the limited amount of geographically diverse data, it is not possible to develop a comprehensive predictive model. Based on the comprehensive phase behavior analysis of Alaska North Slope crude oil, a reservoir simulation study was carried out to evaluate the performance of a gas injection enhanced oil recovery technique for the West Sak reservoir. It was found that a definite increase in viscous oil production can be obtained by selecting the proper injectant gas and by optimizing reservoir operating parameters. A comparative analysis is provided, which helps in the decision-making process.

Shirish Patil; Abhijit Dandekar; Santanu Khataniar

2008-12-31T23:59:59.000Z

89

A REVIEW OF ASSUMPTIONS AND ANALYSIS IN EPRI EA-3409,"HOUSEHOLD APPLIANCE CHOICE: REVISION OF REEPS BEHAVIORAL MODELS"  

SciTech Connect (OSTI)

This paper revises and extends EPRI report EA-3409, ''Household Appliance Choice: Revision of REEPS Behavioral Models.'' That paper reported the results of an econometric study of major appliance choice in new residential construction. Errors appeared in two tables of that report. We offer revised versions of those tables, and a brief analysis of the consequences and significance of the errors. The present paper also proposes several possible extensions and re-specifications of the models examined by EPRI. Some of these are judged to be highly successful; they both satisfy economic intuition more completely than the original specification and produce a better quality fit to the dependent variable. We feel that inclusion of these modifications produces a more useful set of coefficients for economic modeling than the original specification. This paper focuses on EPRI's models of residential space heating technology choice. That choice was modeled as a nested logit structure, with consumers choosing whether to have central air conditioning or not, and, given that choice, what kind of space heating system to have. The model included five space heating alternatives with central cooling (gas, oil, and electric forced-air; heat pumps; and electric baseboard) and eight alternatives without it (gas, oil, and electric forced-air; gas and oil boilers and non-central systems; and electric baseboard heat). The structure of the nested logit model is shown in Figure 1.

Wood, D.J.; Ruderman, H.; McMahon, J. E.

1989-05-01T23:59:59.000Z

90

Examining changes in transit passenger travel behavior through a Smart Card activity analysis  

E-Print Network [OSTI]

Transit passenger behavior is an area of major interest for public transportation agencies. The relationship between ridership and maintenance projects, however, is unexplored but increasingly relevant in the era of aging ...

Mojica, Carlos H

2008-01-01T23:59:59.000Z

91

Thermal behavior analysis of nickel/metal hydride battery during overcharging  

Science Journals Connector (OSTI)

To analyze the thermal behavior of the cylinder Ni/MH battery during overcharging, a two-dimensional thermal model is provided in this work. More ... reliable data is provided to create the precise thermal model....

Kai Yang; JinJing An; Shi Chen

2010-05-01T23:59:59.000Z

92

Numerical study on thermal behaviors of a solar chimney incorporated with PCM  

Science Journals Connector (OSTI)

Abstract The thermal behaviors of a solar chimney incorporating with organic phase change material (PCM) RT-42 unit under different heat fluxes are studied in this paper. For the numerical model, effective heat capacity method is employed to analyze the performance of RT-42, while the average thermo-physical property approach is used to describe the PCM/fins component. The PCM behaviors during its melting and solidification processes, absorber surface temperature, mass flow rate, and inlet and outlet air temperature difference have been investigated. The numerical results give good agreements with the experimental results. The comprehensive investigations under various heat fluxes from 100 to 800 W/m2 are carried out by using the verified model. The numerical results show that the performance of the system deteriorates sharply once the heat flux is or lower than 500 W/m2, but not big improvement if the heat flux is higher than 700 W/m2. Therefore, the performance of the system is highly dependent on the solar radiation. The application of high effective thermal conductivity enhancers can further improve the performance of the chimney under lower solar radiation.

Yongcai Li; Shuli Liu

2014-01-01T23:59:59.000Z

93

Micro-Raman Spectroscopy of Algae: Composition Analysis and Fluorescence Background Behavior  

E-Print Network [OSTI]

analysis; biodiesel Introduction To date, analysis of algae composition is a multi-staged processARTICLE Micro-Raman Spectroscopy of Algae: Composition Analysis and Fluorescence Background performed using Stokes Raman scattering for compositional analysis of algae. Two algal species, Chlorella

94

Analysis of park-and-ride decision behavior based on Decision Field Theory  

Science Journals Connector (OSTI)

Park and ride is a kind of traffic management solution to the traffic congestion problem in urban cities. This paper analyzes the decision making behavior of Park and Ride from a psychological point of view. Decision Field Theory is used to establish the decision model of Park and Ride. The proposed decision model is calibrated using real-life experimental survey data and has proved to be able to account for the complex decision behavior processes observed in the experimental survey data. The model demonstrates the psychological decision processes of individual travelers and the decision characteristics, such as simple decision, indecision and preference reversal. The effects of factors, e.g. deliberation time, deliberation threshold and initial preference, for mode choice are also examined. The proposed model demonstrates its capability of analyzing park-and-ride decision behavior and providing policy makers with useful information for future promotion and planning for park-and-ride facilities.

Huanmei Qin; Hongzhi Guan; Yao-Jan Wu

2013-01-01T23:59:59.000Z

95

Summary of Utility Studies: Smart Grid Investment Grant Consumer Behavior Study Analysis  

E-Print Network [OSTI]

Environmental Energy Technologies Division May 2013 The workyear. Control/information technology treatments include themetering—cost-effective technology did not exist at that

Cappers, Peter

2014-01-01T23:59:59.000Z

96

Summary of Utility Studies: Smart Grid Investment Grant Consumer Behavior Study Analysis  

E-Print Network [OSTI]

understanding of electricity consumption patterns ofviewing site-level electricity consumption information butfeedback about electricity consumption, while the second (

Cappers, Peter

2014-01-01T23:59:59.000Z

97

HPC Usage Behavior Analysis and Performance Estimation with Machine Learning Techniques  

SciTech Connect (OSTI)

Most researchers with little high performance computing (HPC) experience have difficulties productively using the supercomputing resources. To address this issue, we investigated usage behaviors of the world s fastest academic Kraken supercomputer, and built a knowledge-based recommendation system to improve user productivity. Six clustering techniques, along with three cluster validation measures, were implemented to investigate the underlying patterns of usage behaviors. Besides manually defining a category for very large job submissions, six behavior categories were identified, which cleanly separated the data intensive jobs and computational intensive jobs. Then, job statistics of each behavior category were used to develop a knowledge-based recommendation system that can provide users with instructions about choosing appropriate software packages, setting job parameter values, and estimating job queuing time and runtime. Experiments were conducted to evaluate the performance of the proposed recommendation system, which included 127 job submissions by users from different research fields. Great feedback indicated the usefulness of the provided information. The average runtime estimation accuracy of 64.2%, with 28.9% job termination rate, was achieved in the experiments, which almost doubled the average accuracy in the Kraken dataset.

Zhang, Hao [ORNL; You, Haihang [ORNL; Hadri, Bilel [ORNL; Fahey, Mark R [ORNL

2012-01-01T23:59:59.000Z

98

A Comparative Study of Formal Concept Analysis and Rough Set Theory in Data Analysis  

E-Print Network [OSTI]

A Comparative Study of Formal Concept Analysis and Rough Set Theory in Data Analysis Yiyu (Y@cs.uregina.ca; http://www.cs.uregina.ca/yyao Abstract. The theory of rough sets and formal concept analysis. Formal concept analysis focuses on concepts that are definable by conjuctions of properties, rough set

Yao, Yiyu

99

Molecular Simulation Study of the VaporLiquid Interfacial Behavior of a Dimer-forming Associating Fluid  

E-Print Network [OSTI]

the statistical associating fluid theory (SAFT). Comparison with experimental data shows that molecular models with the statistical associating fluid theory (SAFT) to study complex systems [1­4] and model potentials [5]. As with any molecular-based theoretical method, the study of interfacial behavior of model potentials via SAFT

Singh, Jayant K.

100

Enhanced divergent thinking and creativity in musicians: A behavioral and near-infrared spectroscopy study  

E-Print Network [OSTI]

Enhanced divergent thinking and creativity in musicians: A behavioral and near-infrared 2008 Available online 23 August 2008 Keywords: Creativity Divergent thinking Prefrontal cortex Near-infrared participants, using behavioral tasks and near-infrared spectroscopy (NIRS). Experiment 1 examined convergent

Park, Sohee

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Topic analysis of web user behavior using LDA model on proxy logs  

Science Journals Connector (OSTI)

We propose a web user profiling and clustering framework based on LDA-based topic modeling with an analogy to document analysis in which documents and words represent users and their actions. The main technical challenge addressed here is how to symbolize ... Keywords: latent dirichlet allocation, proxy logs based analysis, topic modeling, web user clustering

Hiroshi Fujimoto; Minoru Etoh; Akira Kinno; Yoshikazu Akinaga

2011-05-01T23:59:59.000Z

102

MovieBase: a movie database for event detection and behavioral analysis  

Science Journals Connector (OSTI)

The overwhelming amount of multimedia entities shared over the web has given rise to the need for semantic identification and classification of these entities. Numerous research efforts have tackled this problem by developing advanced content analysis ... Keywords: YouTube, database, video annotation, video content analysis, video indexing and mining

Tat-Seng Chua; Sheng Tang; Remi Trichet; Hung Khoon Tan; Yan Song

2009-10-01T23:59:59.000Z

103

Web-based parenting skills to reduce behavior problems following abusive head trauma: A pilot study  

Science Journals Connector (OSTI)

Abstract Pediatric abusive head trauma causes significant cognitive and behavioral morbidity, yet very few post-acute interventions exist to facilitate long-term recovery. To meet the needs of this vulnerable population, we piloted a web-based intervention with live coaching designed to improve positive parenting and child behavior. The efficacy of this parenting skills intervention was compared with access to Internet resources on brain injury. Participants included seven families (four randomized to the parenting intervention and three randomized to receive Internet resources). Parenting skills were observed and child behavior was rated at baseline and intervention completion. At completion, parents who received the parenting skills intervention showed significantly more positive parenting behaviors and fewer undesirable behaviors during play than parents who received access to Internet resources. Additionally, during play, children in the parenting skills intervention group were more compliant following parent commands than children in the Internet resources group. Lastly, parents who received the parenting intervention reported less intense oppositional and conduct behavior problems in their children post-intervention than did parents in the Internet resources group. These findings provide preliminary evidence for the use of this web-based positive parenting skills intervention to improve parenting skills and child behavior following abusive head trauma.

Jennifer E. Mast; Tanya N. Antonini; Stacey P. Raj; Karen S. Oberjohn; Amy Cassedy; Kathi L. Makoroff; Shari L. Wade

2014-01-01T23:59:59.000Z

104

Technical program to study the benefits of nonlinear analysis methods in LWR component designs. Technical report TR-3723-1  

SciTech Connect (OSTI)

This report summarizes the results of the study program to assess the benefits of nonlinear analysis methods in Light Water Reactor (LWR) component designs. The current study reveals that despite its increased cost and other complexities, nonlinear analysis is a practical and valuable tool for the design of LWR components, especially under ASME Level D service conditions (faulted conditions) and it will greatly assist in the evaluation of ductile fracture potential of pressure boundary components. Since the nonlinear behavior is generally a local phenomenon, the design of complex components can be accomplished through substructuring isolated localized regions and evaluating them in detail using nonlinear analysis methods.

Raju, P. P.

1980-05-01T23:59:59.000Z

105

Use and misuse of correspondence analysis in codon usage studies  

E-Print Network [OSTI]

Use and misuse of correspondence analysis in codon usage studies Guy PerrieÁre* and Jean Thioulouse; Accepted August 22, 2002 ABSTRACT Correspondence analysis has frequently been used for codon usage studies but this method is often misused. Because amino acid composition exerts constraints on codon usage, it is common

Thioulouse, Jean

106

Simulating the effect of urban morphology on indoor thermal behavior: an Italian case study  

Science Journals Connector (OSTI)

The significant energy consumption imputable to buildings and the increasing concentration of buildings' in urban areas has encouraged researchers to develop rigorous procedures to predict building thermal-energy behavior in real urban contexts. The ...

Anna Laura Pisello, John Eric Taylor, Franco Cotana

2013-12-01T23:59:59.000Z

107

An Analysis of Bridge Abutment Shear Key Behavior due to Embankment Modeling and Earthquake Intensity  

E-Print Network [OSTI]

Tan, B. S. (August 1990). Bridge Abutments: Formulation ofLinear Analysis of Ordinary Bridges Crossing Fault-RuptureZones. Journal of Bridge Engineering, ASCE , 203-215. 15.

Wasef, Nardin Mofid

108

Measuring False-Positive by Automated Real-Time Correlated Hacking Behavior Analysis  

Science Journals Connector (OSTI)

To solve the contradiction between the trend of more distributed network architecture and the demanding for more centralized correlated analysis to detect more complicated attacks from Intrusion Detection System ...

Jia Wang; Insup Lee

2001-01-01T23:59:59.000Z

109

Topic Analysis of Web User Behavior Using LDA Model on Proxy Logs  

Science Journals Connector (OSTI)

We propose a web user profiling and clustering framework based on LDA-based topic modeling with an analogy to document analysis in which documents and words represent users and their actions. The main technica...

Hiroshi Fujimoto; Minoru Etoh; Akira Kinno…

2011-01-01T23:59:59.000Z

110

Cognitive Task Analysis of Business Jet Pilots'' Weather Flying Behaviors: Preliminary Results  

Science Journals Connector (OSTI)

This report presents preliminary findings from a cognitive task analysis (CTA) of business aviation piloting. Results describe challenging weather-related aviation decisions and the information and cues used to support these decisions. Further, these ...

Latorella Kara A.; Pliske Rebecca; Hutton Robert; Chrenka Jason

2001-07-01T23:59:59.000Z

111

The Sorption/Desorption Behavior of Uranium in Transport Studies Using Yucca Mountain Alluvium  

SciTech Connect (OSTI)

Yucca Mountain, Nevada is the proposed site of a geologic repository for the disposal of spent nuclear fuel and high-level radioactive waste in the United States. In the event repository engineered barriers fail, the saturated alluvium located south of Yucca Mountain is expected to serve as a natural barrier to the migration of radionuclides to the accessible environment. The purpose of this study is to improve the characterization of uranium retardation in the saturated zone at Yucca Mountain to support refinement of an assessment model. The distribution of uranium desorption rates from alluvium obtained from Nye County bore holes EWDP-19IM1, EWDP-10SA, EWDP-22SA were studied to address inconsistencies between results from batch sorption and column transport experiments. The alluvium and groundwater were characterized to better understand the underlying mechanisms of the observed behavior. Desorption rate constants were obtained using an activity based mass balance equation and column desorption experiments were analyzed using a mathematical model utilizing multiple sorption sites with different first-order forward and reverse reaction rates. The uranium desorption rate constants decreased over time, suggesting that the alluvium has multiple types of active sorption sites with different affinities for uranium. While a significant fraction of the initially sorbed uranium desorbed from the alluvium quite rapidly, a roughly equivalent amount remained sorbed after several months of testing. The information obtained through this research suggests that uranium may experience greater effective retardation in the alluvium than simple batch sorption experiments would suggest. Electron Probe Microanalysis shows that uranium is associated with both clay minerals and iron oxides after sorption to alluvial material. These results provide further evidence that the alluvium contains multiple sorption sites for uranium.

C. D. Scism

2006-02-15T23:59:59.000Z

112

Parametric study and dynamic analysis of compliant piled towers  

E-Print Network [OSTI]

PARAMETRIC STUDY AND DYNAMIC ANALYSIS OF COMPLIANT PILED TOWERS A Thesis by KARL HEINZ MOOG Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree ol' MASTER OF SCIENCE... May f990 Major Subject: Ocean Engineering PARAMETRIC STUDY AND DYNAMIC ANALYSIS OF COMPLIANT PILED TOWERS A Thesis by KARL HEINZ MOOG Approved as to style and content by: Jack Lou (Chair of Committee) Ala. n slazzolo (Member) Robert Randall...

Moog, Karl Heinz

2012-06-07T23:59:59.000Z

113

Application of parameter analysis principles in design: an experimental study  

E-Print Network [OSTI]

APPLICATION OF PARAMETER ANALYSIS PRINCIPLES IN DESIGN: AN EXPERIMENTAL STUDY A Thesis by VINAI ROJANAVANICH Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1991 Major Subject: Mechanical Engineering APPLICATION OF PARAMETER ANALYSIS PRINCIPLES IN DESIGN: AN EXPERIMENTAL STUDY A Thesis by VINAI ROJANAVANICH Approved as to style and content by: David G. sson (Chair...

Rojanavanich, Vinai

1991-01-01T23:59:59.000Z

114

Analysis of Online Social Networks to Understand Information Sharing Behaviors Through Social Cognitive Theory  

SciTech Connect (OSTI)

Analyzing the contents of online social networks is an effective process for monitoring and understanding peoples behaviors. Since the nature of conversation and information propagation is similar to traditional conversation and learning, one of the popular socio-cognitive methods, social cognitive theory was applied to online social networks to. Two major news topics about colon cancer were chosen to monitor traffic of Twitter messages. The activity of leaders on the issue (i.e., news companies or people will prior Twitter activity on topics related to colon cancer) was monitored. In addition, the activity of followers , people who never discussed the topics before, but replied to the discussions was also monitored. Topics that produce tangible benefits such as positive outcomes from appropriate preventive actions received dramatically more attention and online social media traffic. Such characteristics can be explained with social cognitive theory and thus present opportunities for effective health campaigns.

Yoon, Hong-Jun [ORNL] [ORNL; Tourassi, Georgia [ORNL] [ORNL

2014-01-01T23:59:59.000Z

115

Behavior of an heterogeneous annular FBR core during an unprotected loss of flow accident: Analysis of the primary phase with SAS-SFR  

SciTech Connect (OSTI)

In the framework of a substantial improvement on FBR core safety connected to the development of a new Gen IV reactor type, heterogeneous core with innovative features are being carefully analyzed in France since 2009. At EDF R and D, the main goal is to understand whether a strong reduction of the Na-void worth - possibly attempting a negative value - allows a significant improvement of the core behavior during an unprotected loss of flow accident. Also, the physical behavior of such a core is of interest, before and beyond the (possible) onset of Na boiling. Hence, a cutting-edge heterogeneous design, featuring an annular shape, a Na-plena with a B{sub 4}C plate and a stepwise modulation of fissile core heights, was developed at EDF by means of the SDDS methodology, with a total Na-void worth of -1 $. The behavior of such a core during the primary phase of a severe accident, initiated by an unprotected loss of flow, is analyzed by means of the SAS-SFR code. This study is carried-out at KIT and EDF, in the framework of a scientific collaboration on innovative FBR severe accident analyses. The results show that the reduction of the Na-void worth is very effective, but is not sufficient alone to avoid Na-boiling and, hence, to prevent the core from entering into the primary phase of a severe accident. Nevertheless, the grace time up to boiling onset is greatly enhanced in comparison to a more traditional homogeneous core design, and only an extremely low fraction of the fuel (<0.1%) enters into melting at the end of this phase. A sensitivity analysis shows that, due to the inherent neutronic characteristics of such a core, the gagging scheme plays a major role on the core behavior: indeed, an improved 4-zones gagging scheme, associated with an enhanced control rod drive line expansion feed-back effect, finally prevents the core from entering into sodium boiling. This major conclusion highlights both the progress already accomplished and the need for more detailed future analyses, particularly concerning: the neutronic burn-up scheme, the modeling of the diagrid effect and the control rod drive line expansion feed-backs, as well as the primary/secondary systems thermal-hydraulics behavior. (authors)

Massara, S.; Schmitt, D.; Bretault, A.; Lemasson, D.; Darmet, G.; Verwaerde, D. [EDF R and D, 1, Avenue du General de Gaulle, 92141 Clamart (France); Struwe, D.; Pfrang, W.; Ponomarev, A. [Karlsruher Institut fuer Technologie KIT, Institut fuer Neutronenphysik und Reaktortechnik INR, Hermann-von-Helmholtz-Platz 1, Gebaude 521, 76344 Eggenstein-Leopoldshafen (Germany)

2012-07-01T23:59:59.000Z

116

NREL: Energy Analysis - Renewable Electricity Futures Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Renewable Electricity Futures Study Renewable Electricity Futures Study RE Futures Visualizations These visualizations are based on RE Futures modeling and represent the transformation of the U.S. electric system to a high renewable system from 2010 to 2050 and the hourly operation and transmission flow of that system in 2050. Transformation of the Electric Sector (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display the transformation of the electric sector in 2010 through 2050 Hourly Operation in 2050 (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display hourly operation in 2010 through 2050 Power Flow in 2050 (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display power flow in 2010 through 2050

117

Behavioral Simulation Techniques for Substrate Noise Analysis in PLL Jae Wook Kim  

E-Print Network [OSTI]

@gloworm.stanford.edu Abstract- This paper presents a methodology to simulate, at the system level, the substrate noise coupling. The simulation of PLLs requires transient analysis with small time-steps over long intervals in order to achieve to simulate the system in a coarse but fast way in order to gain initial design guidance. For example, speed

Dutton, Robert W.

118

A pilot study to evaluate nutritional influences on gastrointestinal symptoms and behavior patterns in children with Autism Spectrum Disorder  

Science Journals Connector (OSTI)

SummaryBackground One in 110 children in the US have autism spectrum disorder (ASD), a debilitating and life-long disorder that affects the health, relationships, and learning of affected children. Existing research on the etiology, contributing factors, and treatment for ASD is limited and controversial. Studies suggest that GI symptoms are related to behavior issues in children with ASD, which may be improved by a gluten-free, casein-free (GFCF) diet. Objectives To evaluate the relationship between a GFCF diet and gastrointestinal symptoms and behavior patterns in children with ASD. Design and setting Cross-sectional design in which parents completed an online survey regarding general health, diet (adapted food-frequency questionnaire (FFQ)), gastrointestinal symptoms, and behavior patterns of their children with ASD. Main outcome measures Scores on the Gastrointestinal Symptoms Rating Scale (GSRS) and Childhood Autism Rating Scale (CARS). Results Seven of thirteen children (median age 9 years) were on a GFCF diet, consuming significantly fewer gluten- and casein-containing foods than those not on a GFCF diet. GSRS and CARS scores did not differ significantly according to diet. Parents of all the children on a GFCF diet reported improved GI symptoms and behavior patterns. Conclusions This study provides evidence that the adapted FFQ is an effective tool for evaluating adherence to a GFCF diet. Continued well-controlled research is necessary to elucidate the gut–brain relationship in ASD.

Cristen Harris; Bethany Card

2012-01-01T23:59:59.000Z

119

Water conservation behavior in Australia  

Science Journals Connector (OSTI)

Ensuring a nation's long term water supply requires the use of both supply-sided approaches such as water augmentation through water recycling, and demand-sided approaches such as water conservation. Conservation behavior can only be increased if the key drivers of such behavior are understood. The aim of this study is to reveal the main drivers from a comprehensive pool of hypothesized factors. An empirical study was conducted with 3094 Australians. Data was analyzed using multivariate linear regression analysis and decision trees to determine which factors best predict self-reported water conservation behavior. Two key factors emerge: high level of pro-environmental behavior; and pro-actively seeking out information about water. A number of less influential factors are also revealed. Public communication strategy implications are derived.

Sara Dolnicar; Anna Hurlimann; Bettina Grün

2012-01-01T23:59:59.000Z

120

Studying Daphnia feeding behavior as a black box: a novel electrochemical approach  

E-Print Network [OSTI]

impact on phytoplankton populations and its role in energy conversion up the food web (Lampert, 1987 to environ- mental factors and metabolic demands. Our approach is an integration of optical (Schlieren system observed differences in Daphnia feeding behavior were due to environmental or metabolic factors

Moore, Paul A.

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Geothermal field case studies that document the usefulness of models in predicting reservoir and well behavior  

SciTech Connect (OSTI)

The geothermal industry has shown significant interest in case histories that document field production histories and demonstrate the techniques which work best in the characterization and evaluation of geothermal systems. In response to this interest, LBL has devoted a significant art of its geothermal program to the compilation and analysis of data from US and foreign fields (e.g., East Mesa, The Geysers, Susanville, and Long Valley in California; Klamath Falls in Oregon; Valles Caldera, New Mexico; Cerro Prieto and Los Azufres in Mexico; Krafla and Nesjavellir in Iceland; Larderello in Italy; Olkaria in Kenya). In each of these case studies we have been able to test and validate in the field, or against field data, the methodology and instrumentation developed under the Reservoir Technology Task of the DOE Geothermal Program, and to add to the understanding of the characteristics and processes occurring in geothermal reservoirs. Case study results of the producing Cerro Prieto and Olkaria geothermal fields are discussed in this paper. These examples were chosen because they illustrate the value of conceptual and numerical models to predict changes in reservoir conditions, reservoir processes, and well performance that accompany field exploitation, as well as to reduce the costs associated with the development and exploitation of geothermal resources. 14 refs., 6 figs.

Lippmann, M.J.

1989-03-01T23:59:59.000Z

122

Geothermal Field Case Studies that Document the Usefulness of Models in Predicting Reservoir and Well Behavior  

SciTech Connect (OSTI)

The geothermal industry has shown significant interest in case histories that document field production histories and demonstrate the techniques which work best in the characterization and evaluation of geothermal systems. In response to this interest, LBL has devoted a significant part of its geothermal program to the compilation and analysis of data from US and foreign fields (e.g., East Mesa, The Geysers, Susanville, and Long Valley in California; Klamath Fall in Oregon; Valles Caldera, New Mexico; Cerro Prieto and Los Azufres in Mexico; Krafla and Nesjavellir in Iceland; Larderello in Italy; Olkaria in Kenya). In each of these case studies we have been able to test and validate in the field, or against field data, the methodology and instrumentation developed under the Reservoir Technology Task of the DOE Geothermal Program, and to add to the understanding of the characteristics and processes occurring in geothermal reservoirs. Case study results of the producing Cerro Prieto and Olkaria geothermal fields are discussed in this paper. These examples were chosen because they illustrate the value of conceptual and numerical models to predict changes in reservoir conditions, reservoir processes, and well performance that accompany field exploitation, as well as to reduce the costs associated with the development and exploitation of geothermal resources.

Lippmann, Marcelo J.

1989-03-21T23:59:59.000Z

123

Parametric analysis of thermal behavior during selective laser melting additive manufacturing of aluminum alloy powder  

Science Journals Connector (OSTI)

Abstract Simulation of temperature fields during selective laser melting (SLM) additive manufacturing of AlSi10Mg powder was performed using the finite element method (FEM). The effects of laser power and scan speed on the SLM thermal behavior were investigated. It showed that the cooling rate of the molten pool elevated slightly from 2.13 × 106 °C/s to 2.97 × 106 °C/s as the laser power increased from 150 W to 300 W, but it enhanced significantly from 1.25 × 106 °C/s to 6.17 × 106 °C/s as the scan speed increased from 100 mm/s to 400 mm/s. The combination of a low laser power (200 W) and a high scan speed (400 mm/s) yielded a low temperature (1059 °C) and an extremely short liquid lifetime (0.19 ms), resulting in the poor wettability and occurrence of micropores in SLM-produced parts. The temperature gradient along the depth direction of the molten pool increased considerably from 10.6 °C/?m to 21.7 °C/?m as the laser power elevated from 150 W to 300 W, while it decreased slightly from 14.9 °C/?m to 13.5 °C/?m as the scan speed increased from 100 mm/s to 400 mm/s. The proper molten pool width (111.4 ?m) and depth (67.5 ?m) were obtained for a successful SLM process using the laser power of 250 W and scan speed of 200 mm/s. SLM of AlSi10Mg powder was also experimentally performed using different laser processing conditions and the microstructures of the SLM-fabricated samples were investigated to verify the reliability of the physical model. A sound metallurgical bonding between the neighboring fully dense layers was achieved at laser power of 250 W and scan speed of 200 mm/s, due to the larger molten pool depth (67.5 ?m) as relative to the layer thickness (50 ?m).

Yali Li; Dongdong Gu

2014-01-01T23:59:59.000Z

124

Residential Behavioral Savings: An Analysis of Principal Electricity End Uses in British Columbia  

E-Print Network [OSTI]

Center for the Study of Energy Markets. California EnergyThe Economics of Energy Market Transformation Programs,”and J.E. Eto. 1996. Market Barriers to Energy Efficiency: A

Tiedemann, Kenneth Mr.

2013-01-01T23:59:59.000Z

125

Residential Behavioral Savings: An Analysis of Principal Electricity End Uses in British Columbia  

E-Print Network [OSTI]

The study found that refrigerator and freezer temperaturekWh per year), and refrigerator and freezer (1,120 kWh perrefrigeration (refrigerators and freezers) included in the

Tiedemann, Kenneth Mr.

2013-01-01T23:59:59.000Z

126

Analysis of the thermal behavior of a LiFePO4 battery cell  

Science Journals Connector (OSTI)

This paper presents theory, experiments and numerical modeling results for the electrothermal analysis of Lithium Iron Phosphate (LiFePO4) battery cells. Thermal management of batteries is important for several reasons including thermal runaway and maintaining battery operating time. A battery pack is comprised of battery cells which are stacked together without cooling surfaces except for the pack outer surface. The central cells in the pack are therefore exposed to the risk of overheating. A model for a single specific commercial LiFePO4 battery cell is presented together with preliminary experiments and results for determination of heating sources during charging and discharging. Based on the experimental results we extract model parameters for use in the model. The experiments lead to relations for the cell surface temperature and the lump temperature of the cell. A reasonable agreement between experiments and the model is found and suggestions for further work is indicated.

Marian-Ciprian Niculu??; Christian Veje

2012-01-01T23:59:59.000Z

127

Rough Set Dependency Analysis in Evaluation Studies An Application in the Study of Repeated Heart Attacks  

E-Print Network [OSTI]

of repeated heart attacks. 1 Introduction In many cases it is not possible to obtain complete ­ or certain analysis can be applied to an investi- gation into the causes of repeated heart attacks con- ductedRough Set Dependency Analysis in Evaluation Studies ­ An Application in the Study of Repeated Heart

Düntsch, Ivo

128

A numerical study of the supply mode effects on high-pressure mercury discharge lamp dynamic thermal behavior  

SciTech Connect (OSTI)

This paper presents a numerical study of the dynamic behavior of high-pressure mercury discharge lamp as a function of supply mode. Bidimensional time-dependent equations have been solved by using a semi-implicit finite-element code. The model has been developed in the frame of the local thermodynamic equilibrium hypothesis. After validation by using experimental data from the literature, this model was applied to analyze the effects of some key parameters such as frequency for an ac arc current and the ratio cycle parameter for square arc-current wave form on the convective process. The results obtained have been used to analyze the dynamic thermal behavior of high-pressure mercury plasma (pressure equal to 0.3 MPa) working under currents widely different in frequency and wave form.

Kaziz, S.; Ahmed, R. Ben; Araoud, Z.; Gazzah, M.H.; Charrada, K.; Said, R. [EMIR, IPEIM, route de Skanes, 5019 Monastir (Tunisia); FSM, avenue de l'environnement, 5019 Monastir (Tunisia); EMIR, IPEIM, route de Skanes, 5019 Monastir (Tunisia)

2005-06-15T23:59:59.000Z

129

In-service performance and behavior characterization of the hybrid composite bridge system - a case study  

E-Print Network [OSTI]

The Hybrid Composite Beam (HCB) system is an innovative structural technology that has been recently used in bridge construction within the U.S. transportation network. In this system, the superstructure consists of a conventional reinforced concrete deck supported by Hybrid Composite Beams. Each beam is comprised of a glassfiber reinforced polymer (FRP) box shell containing a tied parabolic concrete arch. Inclined stirrups provide shear integrity and enforce composite action between the HCBs and the concrete deck. This paper focuses on evaluating the in-service performance of a newly constructed HCB bridge superstructure located on Route 205 in Colonial Beach, Virginia. A live load test was conducted using tandem axle dump trucks under both quasi-static and dynamic conditions. Results obtained from the experimental investigation were used to determine three key behavior characteristics. Dynamic amplification and lateral load distribution were found to be reasonable in comparison to the assumed design values. The testing program also included internal and external measurement systems to help characterize the load sharing behavior of the HCB on an element level. The main load carrying elements are the deck in compression and the steel ties in tension, and the FRP shell did not act compositely with the internal components.

John M. Civitillo; Devin K. Harris; Amir Gheitasi; Mark Saliba; Bernard L. Kassner

2014-09-08T23:59:59.000Z

130

Dilatometric study of critical behavior in CsPbCl3: Bicritical point at 41 °C  

Science Journals Connector (OSTI)

High-quality crystals of CsPbCl3 were grown by the Czochralski technique with automatic diameter control by the weighing method. A sample was prepared for high-resolution dilatometric measurements of the thermal expansion along a cubic [100] direction. The linear strain, ?L/L, was measured in the temperature interval 28–55 °C, and anomalies associated with three phase transitions were observed. Emphasis was put on the critical behavior in the close vicinity of the second-order II-III phase transition at 41 °C. The temperature variation of the anomalous thermal expansivity follows a power law ??t?-0.18 in the ordered phase. This is in excellent agreement with the expected behavior of the spontaneous strain in cubic perovskites at an n=2 bicritical point. Also the [100]-stress–temperature phase diagram was measured for the II-III transition. The phase boundary line for compressional stress ? is well described by Tc(?)-Tc(0)??1/? with ?=1.175, consistent with the unstressed transition being an n=2 bicritical point. This is the first observation of such bicriticality in a structural system.

T. H. Johansen; J. Feder; T. Jo/ssang

1988-04-01T23:59:59.000Z

131

A randomized comparative effectiveness study of Healthy Directions 2—A multiple risk behavior intervention for primary care  

Science Journals Connector (OSTI)

AbstractObjective To evaluate the effectiveness of the Healthy Directions 2 (HD2) intervention in the primary care setting. Methods HD2 was a cluster randomized trial (conducted 3/09–11/11). The primary sampling unit was provider (n = 33), with secondary sampling of patients within provider (n = 2440). Study arms included: 1) usual care (UC); 2) HD2—a patient self-guided intervention targeting 5 risk behaviors; and 3) HD2 plus 2 brief telephone coaching calls (HD2 + CC). The outcome measure was the proportion of participants with a lower multiple risk behavior (MRB) score by follow-up. Results At baseline, only 4% of the participants met all behavioral recommendations. Both HD2 and HD2 + CC led to improvements in MRB score, relative to UC, with no differences between the two HD2 conditions. Twenty-eight percent of the UC participants had improved MRB scores at 6 months, vs. 39% and 43% in HD2 and HD2 + CC, respectively (ps ? .001); results were similar at 18 months (p ? .05). The incremental cost of one risk factor reduction in MRB score was $310 for HD2 and $450 for HD2 + CC. Conclusions Self-guided and coached intervention conditions had equivalent levels of effect in reducing multiple chronic disease risk factors, were relatively low cost, and thus are potentially useful for routine implementation in similar health settings.

Karen M. Emmons; Elaine Puleo; Mary L. Greaney; Matthew W. Gillman; Gary G. Bennett; Jess Haines; Kim Sprunck-Harrild; K. Viswanath

2014-01-01T23:59:59.000Z

132

In-service performance and behavior characterization of the hybrid composite bridge system - a case study  

E-Print Network [OSTI]

The Hybrid Composite Beam (HCB) system is an innovative structural technology that has been recently used in bridge construction within the U.S. transportation network. In this system, the superstructure consists of a conventional reinforced concrete deck supported by Hybrid Composite Beams. Each beam is comprised of a glassfiber reinforced polymer (FRP) box shell containing a tied parabolic concrete arch. Inclined stirrups provide shear integrity and enforce composite action between the HCBs and the concrete deck. This paper focuses on evaluating the in-service performance of a newly constructed HCB bridge superstructure located on Route 205 in Colonial Beach, Virginia. A live load test was conducted using tandem axle dump trucks under both quasi-static and dynamic conditions. Results obtained from the experimental investigation were used to determine three key behavior characteristics. Dynamic amplification and lateral load distribution were found to be reasonable in comparison to the assumed design values....

Civitillo, John M; Gheitasi, Amir; Saliba, Mark; Kassner, Bernard L

2014-01-01T23:59:59.000Z

133

Screening of mixed surfactant systems: Phase behavior studies and CT imaging of surfactant-enhanced oil recovery experiments  

SciTech Connect (OSTI)

A systematic chemical screening study was conducted on selected anionic-nonionic and nonionic-nonionic systems. The objective of the study was to evaluate and determine combinations of these surfactants that would exhibit favorable phase behavior and solubilization capacity. The effects of different parameters including (a) salinity, (b) temperature, (c) alkane carbon number, (c) hydrophilic/lipophilic balance (HLB) of nonionic component, and (d) type of surfactant on the behavior of the overall chemical system were evaluated. The current work was conducted using a series of ethoxylated nonionic surfactants in combinations of several anionic systems with various hydrocarbons. Efforts to correlate the behavior of these mixed systems led to the development of several models for the chemical systems tested. The models were used to compare the different systems and provided some guidelines for formulating them to account for variations in salinity, oil hydrocarbon number, and temperature. The models were also evaluated to determine conformance with the results from experimental measurements. The models provided good agreement with experimental results. X-ray computed tomography (CT) was used to study fluid distributions during chemical enhanced oil recovery experiments. CT-monitored corefloods were conducted to examine the effect of changing surfactant slug size injection on oil bank formation and propagation. Reducing surfactant slug size resulted in lower total oil production. Oil recovery results, however, did not correlate with slug size for the low-concentration, alkaline, mixed surfactant system used in these tests. The CT measurements showed that polymer mobility control and core features also affected the overall oil recovery results.

Llave, F.M.; Gall, B.L.; Lorenz, P.B.; Cook, I.M.; Scott, L.J.

1993-11-01T23:59:59.000Z

134

Theoretical study of the electrical power behavior of a cesium thermionic converter for switching resistive and reactive loads  

SciTech Connect (OSTI)

Pulsed ionized diodes have shown to be an attractive mode to develop thermionic converters. Usually the investigations have been focused to work with additive gases and constant loads at steady state. The experimental transient graphs reported suggest a dynamic behavior of the thermionic converter. Periods of the order of 300 {micro}s have been reported for the decay time of voltage and current, a condition that is similar to a capacitive discharge. A circuit model for a thermionic converter to define this condition is proposed. Using this model, an electrical analysis of the thermionic converter power with different switching loads is made. Both, resistive and reactive loads are connected. Special emphasis is dedicated to determine the resonance frequencies.

Perez, J.G. [ICUAP-BUAP, Puebla (Mexico). Semiconductor Devices Research Center; Estrada, C.A.; Jimenez, A.E.; Cervantes, J.G. [UNAM, Temixco (Mexico). Energy Research Center

1997-12-31T23:59:59.000Z

135

Reliability generalization of perceived ease of use, perceived usefulness, and behavioral intentions  

Science Journals Connector (OSTI)

A reliability generalization study (a meta-analysis of reliability coefficients) was conducted on three widely studied information systems constructs from the technology acceptance model (TAM): perceived ease of use, perceived usefulness, and behavioral ... Keywords: behavioral intentions, ease of use, effect size attenuation, meta-analysis, reliability, reliability generalization, technology acceptance model (TAM), usefulness

Traci J. Hess, Anna L. McNab, K. Asli Basoglu

2014-03-01T23:59:59.000Z

136

Numerical study of effect of the gas-coolant free surface on the droplet fragmentation behavior of coolants  

SciTech Connect (OSTI)

This paper presents results of a numerical investigation on the behavior of melt drops falling in a gas (vapor) space and then penetrating into a liquid volume through the gas-liquid interface. The phenomenon studied here is, usually, observed when a liquid drop falls through air into a water pool and is, specially, of interest when a hypothetical severe reactor core meltdown accident is considered. The objective of this work is to study the effect of the gas-liquid interface on the dynamic evolution of the interaction area between the fragmenting melt drop and water. In the present study, the Navier-Stokes equations are solved for three phases (gas, liquid and melt-drop) using a higher-order, explicit, numerical method, called Cubic-Interpolated Pseudo-Particle (CIP) method, which is employed in combination with an advanced front-capturing scheme, named the Level Set Algorithm (LSA). By using this method, reasonable physical pictures of droplet deformation and fragmentation during movement in a stationary uniform water pool, and in a gas-liquid two-layer volume, is simulated. Effect of the gas-liquid interface on the drop deformation and fragmentation is analyzed by comparing the simulation results obtained for the two cases. Effects of the drop geometry, and of the flow conditions, on the behavior of the melt drop are also analyzed.

Li, H.X.; Anh, B.V.; Dinh, T.N.; Sehgal, B.R.

1999-07-01T23:59:59.000Z

137

Effect of residence on mothers’ health care seeking behavior for common childhood illness in Northwest Ethiopia: a community based comparative cross – sectional study  

Science Journals Connector (OSTI)

Children are at higher risk of acquiring infections and developing severe disease. This study assessed the health care seeking behavior and associated factors of urban and rural mothers for common childhood il...

Yalemzewod Assefa Gelaw; Gashaw Andargie Biks; Kefyalew Addis Alene

2014-10-01T23:59:59.000Z

138

National Electric Transmission Study 2006 Western Interconnection Analysis  

Broader source: Energy.gov (indexed) [DOE]

Western Interconnection Western Interconnection 2006 Congestion Assessment Study Prepared by the Western Congestion Analysis Task Force May 08, 2006 2 Western Interconnection 2006 Congestion Study - DOE Task 3 - 1. 2008 Modeling Study 2. 2015 Modeling Study - 2015 Planned Resource Development (IRPs and RPS) 3. W.I. Historical Path Usage Studies - 1999 thru 2005 - Physical congestion - Commercial congestion 3 WCATF Modeling Studies ABB Gridview Model * Model uses WECC 2005 L&R load forecast, modified with NPCC data for the NW, RMATS load forecasts for the Rocky Mtn area and the latest CEC load forecast for California * Hourly load shapes were developed using FERC 714 * Incremental transmission was added to a WECC 2008 case to represent 2015 network topology * WECC path ratings were used, modified as necessary to more closely

139

Importance of the gas phase role to the prediction of energetic material behavior: An experimental study  

Science Journals Connector (OSTI)

Various thermal (radiative conductive and convective) initiation experiments are performed to demonstrate the importance of the gas phase role in combustionmodeling of energetic materials (EM). A previously published condensed phase model that includes a predicted critical irradiance above which ignition is not possible is compared to experimental laser ignition results for octahydro-1 3 5 7-tetranitro-1 3 5 7-tetrazocine (HMX) and 2 4 6-trinitrotoluene (TNT). Experimental results conflict with the predicted critical irradiance concept. The failure of the model is believed to result from a misconception about the role of the gas phase in the ignition process of energetic materials. The model assumes that ignition occurs at the surface and that evolution of gases inhibits ignition. High speed video of laser ignition oven cook-off and hot wire ignition experiments captures the ignition of HMX and TNT in the gas phase. A laser ignition gap test is performed to further evaluate the effect of gas phase laser absorption and gas phase disruption on the ignition process. Results indicate that gas phase absorption of the laser energy is probably not the primary factor governing the gas phase ignition observations. It is discovered that a critical gap between an HMX pellet and a salt window of 6 mm ± 0.4 mm exists below which ignition by C O 2 laser is not possible at the tested irradiances of 29 W ? cm 2 and 38 W ? cm 2 for HMX ignition. These observations demonstrate that a significant disruption of the gas phase in certain scenarios will inhibit ignition independent of any condensed phase processes. These results underscore the importance of gas phase processes and illustrate that conditions can exist where simple condensed phase models are inadequate to accurately predict the behavior of energetic materials.

A. N. Ali; S. F. Son; B. W. Asay; R. K. Sander

2005-01-01T23:59:59.000Z

140

Importance of the gas phase role to the prediction of energetic material behavior: An experimental study  

SciTech Connect (OSTI)

Various thermal (radiative, conductive, and convective) initiation experiments are performed to demonstrate the importance of the gas phase role in combustion modeling of energetic materials (EM). A previously published condensed phase model that includes a predicted critical irradiance above which ignition is not possible is compared to experimental laser ignition results for octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) and 2,4,6-trinitrotoluene (TNT). Experimental results conflict with the predicted critical irradiance concept. The failure of the model is believed to result from a misconception about the role of the gas phase in the ignition process of energetic materials. The model assumes that ignition occurs at the surface and that evolution of gases inhibits ignition. High speed video of laser ignition, oven cook-off and hot wire ignition experiments captures the ignition of HMX and TNT in the gas phase. A laser ignition gap test is performed to further evaluate the effect of gas phase laser absorption and gas phase disruption on the ignition process. Results indicate that gas phase absorption of the laser energy is probably not the primary factor governing the gas phase ignition observations. It is discovered that a critical gap between an HMX pellet and a salt window of 6 mm{+-}0.4 mm exists below which ignition by CO{sub 2} laser is not possible at the tested irradiances of 29 W/cm{sup 2} and 38 W/cm{sup 2} for HMX ignition. These observations demonstrate that a significant disruption of the gas phase, in certain scenarios, will inhibit ignition, independent of any condensed phase processes. These results underscore the importance of gas phase processes and illustrate that conditions can exist where simple condensed phase models are inadequate to accurately predict the behavior of energetic materials.

Ali, A.N.; Son, S.F.; Asay, B.W.; Sander, R.K. [Los Alamos National Laboratory, MS C920, Los Alamos, New Mexico 87544 (United States)

2005-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Caenorhabditis elegans Egg-Laying Detection and Behavior Study Using Image Analysis  

E-Print Network [OSTI]

Energy Minimization Methods in Computer Vision and Pattern Recognition (EMMCVPR ’97), vol. 1223, Venice,

Geng, Wei; Cosman, Pamela; Palm, Megan; Schafer, William R

2005-01-01T23:59:59.000Z

142

Analysis and Synthesis of Load Forecasting Data for Renewable Integration Studies: Preprint  

SciTech Connect (OSTI)

As renewable energy constitutes greater portions of the generation fleet, the importance of modeling uncertainty as part of integration studies also increases. In pursuit of optimal system operations, it is important to capture not only the definitive behavior of power plants, but also the risks associated with systemwide interactions. This research examines the dependence of load forecast errors on external predictor variables such as temperature, day type, and time of day. The analysis was utilized to create statistically relevant instances of sequential load forecasts with only a time series of historic, measured load available. The creation of such load forecasts relies on Bayesian techniques for informing and updating the model, thus providing a basis for networked and adaptive load forecast models in future operational applications.

Steckler, N.; Florita, A.; Zhang, J.; Hodge, B. M.

2013-11-01T23:59:59.000Z

143

CARLINK: A SMART CARSHARING SYSTEM--A STUDY OF BEHAVIORAL ADAPTATION  

E-Print Network [OSTI]

of Transportation Studies at the University of California, Davis (UC Davis), and its partners the California, Davis; Davis, CA 95616; (530) 752-1934 and Fax: (530) 752-6572; and E-mail: sashaheen at Institute of Transportation Studies, One Shields Ave., University of California, Davis; Davis, CA 95616

Kammen, Daniel M.

144

Dosimetric and behavioral analysis of microwave-drug synergistic effects on operant behavior in the rat. Final report Sep 79-Dec 81  

SciTech Connect (OSTI)

Five male Long-Evans rats, maintained at 80% of their free-feeding weight, were trained to bar-press for food reward on a one-minute fixed-interval (FI1) schedule of reinforcement. Once stable FI1 baseline response rates were established, dose-response functions were generated for Chlordiazepoxide HC1 (CDZ). Subsequent treatments with CDZ were followed by 30 min. pulsed microwave radiation (MWR) and FI1 behavioral assessment. Pulsed MWR exposures were in the far zone of an anechoic chamber at an averaged incident power density of 1 mW/sq cm (PRF = 300/sec, 3 usec pulse width). After 2 replications of the combined treatments another CDZ dose-response function was generated. This was followed by 3 more CDZ and MWR replications the first of which was carried out at an averaged incident power density of 1 mW/ sq cm2 Increased rates of response for the CDZ and 1 mW/sq cm MWR treatment were demonstrated relative to initial CDZ dose-response functions in 4 of 5 rats tested. However, the dose-response functions for CDZ alone, that were generated following this apparent synergy showed the same shift in response rate. Furthur, the 8 mW/sq cm 2 pulsed MWR combined with CDZ also produced data similar to the 1 mW/sq cm post-MWR exposure CDZ dose-response functions for the animals tested. Thus, we were unable to replicate an earlier demonstration of synergy between CDZ and MWR.

Lovely, R.H.; Lundstrom, D.L.; Phillips, R.D.

1981-12-18T23:59:59.000Z

145

A STUDY OF ATES THERMAL BEHAVIOR USING A STEADY FLOW MODEL  

E-Print Network [OSTI]

and Warman, J.c. , "Thermal energy storage in a confinedProceedings of Thermal Energy Storage in Aquifers Workshop,c.F. , ~Aquifer thermal energy storage- parameter study,~

Doughty, Christine

2013-01-01T23:59:59.000Z

146

A study on the types of managerial behaviors, styles and practices that lead to project success  

E-Print Network [OSTI]

To expand on the understanding of effective leadership and management, this study provides new evidence on the relation between employee satisfaction, project success, and managerial characteristics for the optimization ...

Kuo, Valerie (Valerie Y.)

2006-01-01T23:59:59.000Z

147

Behavior of hydrophobic ionic liquids as liquid membranes on phenol removal: Experimental study and optimization  

E-Print Network [OSTI]

Room temperature ionic liquids show potential as an alternative to conventional organic membrane solvents mainly due to their properties of low vapor pressure, low volatility and they are often stable. In the present work, the technical feasibilities of room temperature ionic liquids as bulk liquid membranes for phenol removal were investigated experimentally. Three ionic liquids with high hydrophobicity were used and their phenol removal efficiency, membrane stability and membrane loss were studied. Besides that, the effects of several parameters, namely feed phase pH, feed concentration, NaOH concentration and stirring speeds on the performance of best ionic liquid membrane were also evaluated. Lastly, an optimization study on bulk ionic liquid membrane was conducted and the maximum phenol removal efficiency was compared with the organic liquid membranes. The preliminary study shows that high phenol extraction and stripping efficiencies of 96.21% and 98.10%, respectively can be achieved by ionic liquid memb...

Ng, Y S; Hashim, M A

2014-01-01T23:59:59.000Z

148

Behavioral Assays to Study Sensorimotor Deficit and Recovery in Rats Following Middle Cerebral Artery Occlusion  

E-Print Network [OSTI]

was to determine whether or not there is a correlation between performance during the corner test and ischemic volume. In this study, 16 acyclic (reproductively senescent) rats were used and assigned to one of two groups: one group received estrogen treatment after...

Roman-Cruz, Glorian M.

2010-07-14T23:59:59.000Z

149

Neutron reflectivity studies of critical adsorption: Behavior of the surface scaling function  

SciTech Connect (OSTI)

Neutron reflectometry has been employed to examine the nature of the critical adsorption surface scaling function for a near-critical mixture of hexane-d{sub 14}+perfluorohexane adsorbing to a solid substrate from the liquid one-phase region. The analysis method of Dietrich and Schack has been applied to examine the nature of the power-law part of the critical adsorption surface scaling function, which has been found to behave as m(z){approx}P{sub 0}z{sup -{mu}} as the critical point is approached. Values of {mu}=0.514{+-}0.018 and P{sub 0}=0.90{+-}0.04 have been obtained. These values are consistent with theoretical expectations ({mu}{sup th}=0.516{+-}0.004; P{sub 0}{sup th}=0.94{+-}0.05), the value determined from Monte Carlo simulations (P{sub 0}{sup MC}=0.866), and other experimental determinations (P{sub 0}{sup ex}=0.955{+-}0.08)

Bowers, James; Zarbakhsh, Ali; Christenson, Hugo K.; McLure, Ian A.; Webster, John R.P.; Steitz, Roland [Department of Chemistry, University of Exeter, Stocker Road, Exeter EX4 4QD (United Kingdom); Department of Chemistry, Queen Mary, University of London, Mile End Road, London E1 4NS (United Kingdom); School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom); Department of Chemistry, University of Sheffield, Sheffield S3 7HF (United Kingdom); ISIS Facility, CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom); Berlin Neutron Scattering Center, Hahn-Meitner-Institut, Glienicker Strasse 100, D-14109 Berlin (Germany)

2005-10-01T23:59:59.000Z

150

Scale-up considerations relevant to experimental studies of nuclear waste-package behavior  

SciTech Connect (OSTI)

Results from a study that investigated whether testing large-scale nuclear waste-package assemblages was technically warranted are reported. It was recognized that the majority of the investigations for predicting waste-package performance to date have relied primarily on laboratory-scale experimentation. However, methods for the successful extrapolation of the results from such experiments, both geometrically and over time, to actual repository conditions have not been well defined. Because a well-developed scaling technology exists in the chemical-engineering discipline, it was presupposed that much of this technology could be applicable to the prediction of waste-package performance. A review of existing literature documented numerous examples where a consideration of scaling technology was important. It was concluded that much of the existing scale-up technology is applicable to the prediction of waste-package performance for both size and time extrapolations and that conducting scale-up studies may be technically merited. However, the applicability for investigating the complex chemical interactions needs further development. It was recognized that the complexity of the system, and the long time periods involved, renders a completely theoretical approach to performance prediction almost hopeless. However, a theoretical and experimental study was defined for investigating heat and fluid flow. It was concluded that conducting scale-up modeling and experimentation for waste-package performance predictions is possible using existing technology. A sequential series of scaling studies, both theoretical and experimental, will be required to formulate size and time extrapolations of waste-package performance.

Coles, D.G.; Peters, R.D.

1986-04-01T23:59:59.000Z

151

An analysis of the effect of the food stamp program on family consumption behavior in the South of the United States  

E-Print Network [OSTI]

behavior in the South of the Uni. ed Sta+es (I'. 2y i 961 ) Viu ling Yeung, S. S. , exas Ahl" Univer sity; Cheirma. . o Advisory Commi. +ee: Dr. Jean -Paul Chaves The ob~ective of +his thesis is to study the effect of the food stamp program ( . S. P... or oonus food tamp income to the . '~!PC of cash income, we can determine whe+he- food stamps do con- strair. recipienc consumption behavior. But hIPC alone con- veys no information about what food. amourt would be con- sumed if cash were provided...

Yeung, Miu Ling

2012-06-07T23:59:59.000Z

152

A Study of Transient Behavior During Start-Up of Residential Heat Pumps  

E-Print Network [OSTI]

); and the efficiency of the heat pump was reduced in transient mode. Miller [1985] also studied refrigerant migration in a heat pump in the heating mode. The results indicated that the indoor coil (condenser) had only 0.5 Ib (the heat pump total charge was 12.5 Ib... original is also photographed in one exposure and is included in reduced form at the back of the book. These are also available as one exposure on a standard 35mm slide or as a 17" x 23" black and white photographic print for an additional charge...

Katipamula, Srinivas

153

Comparative Study on Physicochemical Properties and Combustion Behaviors of Diesel Particulates and Model Soot  

Science Journals Connector (OSTI)

In the IR spectra of real diesel particulates, the absorption peaks at around 2928 and 3048 cm?1 are corresponding to the C?H vibration of the aromatic cycle, the peak at around 764 cm?1 is due to the vibration of substituted aromatic carbon, and the absorption peaks at around 1600 and 1724 cm?1 are assigned to the ?C?O? vibration. ... In general, it can be concluded that Printex U is a suitable model soot for the study on the combustion performances of the soot fraction of diesel particulates. ...

Jian Liu; Zhen Zhao; Chunming Xu; Aijun Duan; Guiyuan Jiang

2010-01-14T23:59:59.000Z

154

Aerosol analysis for the regional air pollution study. Final report  

SciTech Connect (OSTI)

The design and operation of an aerosol sampling and analysis program implemented during the 1975 to 1977 St. Louis Regional Air Pollution Study is described. A network of ten samplers were operated at selected sites in the St. Louis area and the total mass and elemental composition of the collected particulates were determined. Sampling periods of 2 to 24 hours were employed. The samplers were capable of collecting aerosol particles in two distinct size ranges corresponding to fine (< 2.4 ..mu..m diameter) and coarse (> 2.4 ..mu..m diameter) particles. This unique feature allowed the separation of the particulate samples into two distinct fractions with differing chemical origins and health effects. The analysis methods were also newly developed for use in the St. Louis RAPS study. Total particulate mass was measured by a beta-particle attenuation method in which a precision of +- 5 ..mu..m/cm/sup 2/ could be obtained in a one minute measurement time. Elemental compositions of the samples were determined using an energy dispersive x-ray fluorescence method in which detectable limits of 5 ng/cm/sup 2/ or less were routinely achieved for elements ranging in atomic number from Al to Pb. The advantages of these analytical methods over more conventional techniques arise from the ability to automate the measurements. During the course of the two year study, a total of more than 35,000 individual samples were processed and a total of 28 concentrations measured for each sample.

Jaklevic, J.M.; Gatti, R.C.; Goulding, F.S.; Loo, B.W.; Thompson, A.C.

1980-05-01T23:59:59.000Z

155

Trace element behavior in the fluidized bed gasification of solid recovered fuels – A thermodynamic study  

Science Journals Connector (OSTI)

Gasification of biomass and recycled fuels is of particular interest for the efficient production of power and heat. Trace elements present as impurities in the product gas should be removed very efficiently. The objective of this work has been to develop and test thermodynamic models for the reactions of trace elements with chlorine and sulfur in the gasification processes of recycled fuels. In particular, the chemical reactions of trace elements with main thermochemical conversion products, main ash components, and bed and sorbent material are implemented into the model. The possibilities of gas cleaning devices in condensing and removing the trace element compounds are studied by establishing the volatilization tendency of trace element compounds in reducing gases. The results obtained with the model are compared with the measured data of trace elements of gasification experiments using solid recovered fuel as feedstock. Some corresponding studies in the literature are also critically reviewed and compared. The observed discrepancies may be attributed to differences in thermodynamic databases applied and experimental arrangements. The method of removing gaseous trace elements by condensation is already in use in the 160 MWth waste gasification plant in Lahti, Finland.

Jukka Konttinen; Rainer Backman; M. Hupa; Antero Moilanen; Esa Kurkela

2013-01-01T23:59:59.000Z

156

Finite Element Analysis of Ballistic Penetration of Plain Weave Twaron CT709® Fabrics: A Parametric Study  

E-Print Network [OSTI]

The ballistic impact of Twaron CT709® plain weave fabrics is studied using an explicit finite element method. Many existing approximations pertaining to woven fabrics cannot adequately represent strain rate-dependent behavior exhibited by the Twaron...

Gogineni, Sireesha

2011-10-21T23:59:59.000Z

157

California-Wyoming Grid Integration Study: Phase 1 -- Economic Analysis  

SciTech Connect (OSTI)

This study presents a comparative analysis of two different renewable energy options for the California energy market between 2017 and 2020: 12,000 GWh per year from new California in-state renewable energy resources; and 12,000 GWh per year from Wyoming wind delivered to the California marketplace. Either option would add to the California resources already existing or under construction, theoretically providing the last measure of power needed to meet (or to slightly exceed) the state's 33% renewable portfolio standard. Both options have discretely measurable differences in transmission costs, capital costs (due to the enabling of different generation portfolios), capacity values, and production costs. The purpose of this study is to compare and contrast the two different options to provide additional insight for future planning.

Corbus, D.; Hurlbut, D.; Schwabe, P.; Ibanez, E.; Milligan, M.; Brinkman, G.; Paduru, A.; Diakov, V.; Hand, M.

2014-03-01T23:59:59.000Z

158

Conditional Probabilities and Contingency Space Analysis: A Statistical Overview of the Relationship Between Student Behavior and Teacher Consequence  

E-Print Network [OSTI]

of teachers' use of reprimands and praise following student disruption and on-task behavior from baseline to an intervention known as the Class-Wide Function-related Intervention Teams (CW-FIT; Wills et al., 2010). The conditional probabilities of teacher...

Kathurima, Belinda Namugenyi

2013-12-31T23:59:59.000Z

159

A Study on the Tritium Behavior in the Rice Plant after a Short-Term Exposure of HTO  

SciTech Connect (OSTI)

In many Asian countries including Korea, rice is a very important food crop. Its grain is consumed by humans and its straw is used to feed animals. In Korea, there are four CANDU type reactors that release relatively large amounts of tritium into the environment. Since 1997, KAERI (Korea Atomic Energy Research Institute) has carried out the experimental studies to obtain domestic data on various parameters concerning the direct contamination of plant. In this study, the behavior of tritium in the rice plant is predicted and compared with the measurement performed at KAERI. Using the conceptual model of the soil-plant-atmosphere tritiated water transport system which was suggested by Charles E. Murphy, tritium concentrations in the soil and in leaves to time were derived. If the effect of tritium concentration in the soil is considered, the tritium concentration in leaves is described as a double exponential model. On the other hand if the tritium concentration in the soil is disregarded, the tritium concentration in leaves is described by a single exponential term as other models (e.g. Belot's or STAR-H3 model). Also concentration of organically bound tritium in the seed is predicted and compared with measurements. The results can be used to predict the tritium concentration in the rice plant at a field around the site and the ingestion dose following the release of tritium to the environment.

Yook, D-S.; Lee, K. J.; Choi, Y-H.

2002-02-26T23:59:59.000Z

160

In-situ small-angle X-ray scattering study of the precipitation behavior in a Fe-25 at.%Co-9 at.%Mo alloy  

SciTech Connect (OSTI)

Fe-Co-Mo alloys show extraordinary mechanical properties which make them potential candidates for various high-performance applications. In the present study, for the first time, the precipitation behavior in a Fe-25 at.%Co-9 at.%Mo alloy was studied by small-angle X-ray scattering using high-energy synchrotron radiation. The specimens were isothermally aged in an in-situ furnace. The small-angle X-ray scattering patterns showed scaling behavior and were evaluated by employing a model function from the literature. This approach provides information about the characteristic length scale and the volume fraction of the precipitates in the alloy.

Zickler, Gerald A. [Department of Physical Metallurgy and Materials Testing, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria); Christian Doppler Laboratory for Early Stages of Precipitation, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria)], E-mail: gerald.zickler@mu-leoben.at; Eidenberger, Elisabeth [Department of Physical Metallurgy and Materials Testing, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria); Leitner, Harald [Department of Physical Metallurgy and Materials Testing, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria); Christian Doppler Laboratory for Early Stages of Precipitation, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria); Stergar, Erich; Clemens, Helmut [Department of Physical Metallurgy and Materials Testing, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria); Staron, Peter; Lippmann, Thomas; Schreyer, Andreas [GKSS Research Center Geesthacht, Max-Planck-Strasse 1, D-21502 Geesthacht (Germany)

2008-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

System analysis study for Korean fusion DEMO reactor  

Science Journals Connector (OSTI)

A conceptual design study for a steady-state Korean fusion DEMO reactor (K-DEMO) has been initiated. Two peculiar features need to be noted. First, the major radius is designed to be just below 6.5 m, considering practical engineering feasibilities. But still, high magnetic field at the plasma center around 8 T is expected to be achieved by using current state-of-the-art high performance Nb3Sn strand technology. Second, a two-stage development plan is being considered. In the first stage, K-DEMO will demonstrate a net electricity generation but will also act as a component test facility. Then, after a major upgrade, K-DEMO is expected to show a net electric generation on the order of 300 MWe and the competitiveness in cost of electricity (COE). Feasibility of such a practical, near-future demonstration reactor is studied in this paper, based on a zero dimensional system analysis code study. It was shown that a net electric generation on the order of 300 MWe can be achieved below the optimistic ?N limit of 5. The elongation of K-DEMO is around 1.8 with single null configuration. Detailed optimization process and the resultant various plasma parameters are described.

Jun Ho Yeom; Keeman Kim; Young Seok Lee; Hyoung Chan Kim; Sangjun Oh; Kihak Im; Charles Kessel

2013-01-01T23:59:59.000Z

162

A Validity Study of the Autism Spectrum Disorders—Behavior Problems for Adults (ASD-BPA) Scale  

Science Journals Connector (OSTI)

Challenging behaviors are common and serious problems in adults with autism or pervasive developmental disorder—not otherwise specified (PDD-NOS) and comorbid intellectual disability (ID). These difficulties impe...

Johnny L. Matson; Tessa T. Rivet

2007-12-01T23:59:59.000Z

163

Utilizing automatically collected data to infer travel behavior : a case study of the East London Line extension  

E-Print Network [OSTI]

Utilizing automatically collected data sources, this research strengthens the understanding of changes in user travel behavior caused by the introduction of the extended East London Line (ELL) into London's public ...

Muhs, Kevin J. (Kevin Joseph)

2012-01-01T23:59:59.000Z

164

2007 Wholesale Power Rate Case Initial Proposal : Risk Analysis Study.  

SciTech Connect (OSTI)

The Federal Columbia River Power System (FCRPS), operated on behalf of the ratepayers of the PNW by BPA and other Federal agencies, faces many uncertainties during the FY 2007-2009 rate period. Among these uncertainties, the largest revolve around hydro conditions, market prices and river operations for fish recovery. In order to provide a high probability of making its U.S. Treasury payments, BPA performs a Risk Analysis as part of its rate-making process. In this Risk Analysis, BPA identifies key risks, models their relationships, and then analyzes their impacts on net revenues (total revenues less expenses). BPA subsequently evaluates in the ToolKit Model the Treasury Payment Probability (TPP) resulting from the rates, risks, and risk mitigation measures described here and in the Wholesale Power Rate Development Study (WPRDS). If the TPP falls short of BPA's standard, additional risk mitigation revenues, such as PNRR and CRAC revenues are incorporated in the modeling in ToolKit until the TPP standard is met. Increased wholesale market price volatility and six years of drought have significantly changed the profile of risk and uncertainty facing BPA and its stakeholders. These present new challenges for BPA in its effort to keep its power rates as low as possible while fully meeting its obligations to the U.S. Treasury. As a result, the risk BPA faces in not receiving the level of secondary revenues that have been credited to power rates before receiving those funds is greater. In addition to market price volatility, BPA also faces uncertainty around the financial impacts of operations for fish programs in FY 2006 and in the FY 2007-2009 rate period. A new Biological Opinion or possible court-ordered change to river operations in FY 2006 through FY 2009 may reduce BPA's net revenues included Initial Proposal. Finally, the FY 2007-2009 risk analysis includes new operational risks as well as a more comprehensive analysis of non-operating risks. Both the operational and non-operational risks will be described in Section 2.0 of this study. Given these risks, if rates are designed using BPA's traditional approach of only adding Planned Net Revenues for Risk (PNRR), power rates would need to recover a much larger ''risk premium'' to meet BPA's TPP standard. As an alternative to high fixed risk premiums, BPA is proposing a risk mitigation package that combines PNRR with a variable rate mechanism similar to the cost recovery adjustment mechanisms used in the FY 2002-2006 rate period. The proposed risk mitigation package is less expensive on a forecasted basis because the rates can be adjusted on an annual basis to respond to uncertain financial outcomes. BPA is also proposing a Dividend Distribution Clause (DDC) to refund reserves in excess of $800M to customers in the event net revenues in the next rate period exceed current financial forecasts.

United States. Bonneville Power Administration.

2005-11-01T23:59:59.000Z

165

End-to-end routing behavior in the internet  

Science Journals Connector (OSTI)

The large-scale behavior of routing in the Internet has gone virtually without any formal study, the exception being Chinoy's analysis of the dynamics of Internet routing information [Ch93]. We report on an analysis of 40,000 end-to-end route measurements ...

Vern Paxson

2006-10-01T23:59:59.000Z

166

End-to-end routing behavior in the Internet  

Science Journals Connector (OSTI)

The large-scale behavior of routing in the Internet has gone virtually without any formal study, the exception being Chinoy's analysis of the dynamics of Internet routing information [Ch93]. We report on an analysis of 40,000 end-to-end route measurements ...

Vern Paxson

1996-08-01T23:59:59.000Z

167

The role of foot self-care behavior on developing foot ulcers in diabetic patients with peripheral neuropathy: A prospective study  

Science Journals Connector (OSTI)

AbstractBackground Although foot self-care behavior is viewed as beneficial for the prevention of diabetic foot ulceration, the effect of foot self-care behavior on the development of diabetic foot ulcer has received little empirical investigation. Objective To explore the relationship between foot self-care practice and the development of diabetic foot ulcers among diabetic neuropathy patients in northern Taiwan. Methods A longitudinal study was conducted at one medical center and one teaching hospital in northern Taiwan. Participants A total of 295 diabetic patients who lacked sensitivity to a monofilament were recruited. Five subjects did not provide follow-up data; thus, only the data of 290 subjects were analyzed. The mean age was 67.0 years, and 72.1% had six or fewer years of education. Methods Data were collected by a modified version of the physical assessment portion of the Michigan Neuropathy Screening Instrument and the Diabetes Foot Self-Care Behavior Scale. Cox regression was used to analyze the predictive power of foot self-care behaviors. Results A total of 29.3% (n = 85) of diabetic neuropathy patients developed a diabetic foot ulcer by the one-year follow-up. The total score on the Diabetes Foot Self-Care Behavior Scale was significantly associated with the risk of developing foot ulcers (HR = 1.04, 95% CI = 1.01–1.07, p = 0.004). After controlling for the demographic variables and the number of diabetic foot ulcer hospitalizations, however, the effect was non-significant (HR = 1.03, 95% CI = 1.00–1.06, p = 0.061). Among the foot self-care behaviors, lotion-applying behavior was the only variable that significantly predicted the occurrence of diabetic foot ulcer, even after controlling for demographic variables and diabetic foot ulcer predictors (neuropathy severity, number of diabetic foot ulcer hospitalizations, insulin treatment, and peripheral vascular disease; HR = 1.19, 95% CI = 1.04–1.36, p = 0.012). Conclusions Among patients with diabetic neuropathy, foot self-care practice may be insufficient to prevent the occurrence of diabetic foot ulcer. Instead, lotion-applying behavior predicted the occurrence of diabetic foot ulcers in diabetic patients with neuropathy. Further studies are needed to explore the mechanism of lotion-applying behavior as it relates to the occurrence of diabetic foot ulcer.

Yen-Fan Chin; Jersey Liang; Woan-Shyuan Wang; Brend Ray-Sea Hsu; Tzu-Ting Huang

2014-01-01T23:59:59.000Z

168

Application of proactive behavioral techniques for the promotion of solar retrofit in condominiums: the Friars Village case study  

SciTech Connect (OSTI)

The purpose of this project was to develop a program for marketing solar technology to the condominium market. As such, it was intended as a pilot study of retrofit solar water heating for multi-family residences. This objective was later expanded into developing a cooperative model with applicability to: residential housing (multi-family and single family high density); commercial buildings; retrofit and new construction; and water and space heating. An experimental program conducted in the Friars Village development in San Diego is described. The program provided residents with a structured approach to a solar analysis. It included: assessment of existing energy use; assessment of local attitudes concerning solar; review of local building codes affecting solar; analysis of the legal documents governing the condominium, selection of solar designers and contractors; solar system design alternatives; financing of systems; and other relevant information. Section II, provides background information on the development of the project and on the study site, Friars Village. Section III describes the original strategy for the project and the steps outlined to accomplish the goals set for the project. Section IV provides documentation for and results of the activities conducted during the course of the project. Section V provides some discussion of the lessons learned from the experience. (MCW)

Mick, C.; Callahan, D.; Garcia, R.; Spielberg, F.; Mick, U.

1980-05-06T23:59:59.000Z

169

Chemical Imaging and Dynamical Studies of Reactivity and Emergent Behavior in Complex Interfacial Systems. Final Technical Report  

SciTech Connect (OSTI)

This research program explored the efficacy of using molecular-level manipulation, imaging and scanning tunneling spectroscopy in conjunction with supersonic molecular beam gas-surface scattering to significantly enhance our understanding of chemical processes occurring on well-characterized interfaces. One program focus was on the spatially-resolved emergent behavior of complex reaction systems as a function of the local geometry and density of adsorbate-substrate systems under reaction conditions. Another focus was on elucidating the emergent electronic and related reactivity characteristics of intentionally constructed single and multicomponent atom- and nanoparticle-based materials. We also examined emergent chirality and self-organization in adsorbed molecular systems where collective interactions between adsorbates and the supporting interface lead to spatial symmetry breaking. In many of these studies we combined the advantages of scanning tunneling (STM) and atomic force (AFM) imaging, scanning tunneling local electronic spectroscopy (STS), and reactive supersonic molecular beams to elucidate precise details of interfacial reactivity that had not been observed by more traditional surface science methods. Using these methods, it was possible to examine, for example, the differential reactivity of molecules adsorbed at different bonding sites in conjunction with how reactivity is modified by the local configuration of nearby adsorbates. At the core of this effort was the goal of significantly extending our understanding of interfacial atomic-scale interactions to create, with intent, molecular assemblies and materials with advanced chemical and physical properties. This ambitious program addressed several key topics in DOE Grand Challenge Science, including emergent chemical and physical properties in condensed phase systems, novel uses of chemical imaging, and the development of advanced reactivity concepts in combustion and catalysis including carbon management. These activities directly benefitted national science objectives in the areas of chemical energy production and advanced materials development.

Sibener, Steven J. [University of Chicago, IL (United States)] [University of Chicago, IL (United States)

2014-03-11T23:59:59.000Z

170

Uncertainty Studies of Real Anode Surface Area in Computational Analysis for Molten Salt Electrorefining  

SciTech Connect (OSTI)

This study examines how much cell potential changes with five differently assumed real anode surface area cases. Determining real anode surface area is a significant issue to be resolved for precisely modeling molten salt electrorefining. Based on a three-dimensional electrorefining model, calculated cell potentials compare with an experimental cell potential variation over 80 hours of operation of the Mark-IV electrorefiner with driver fuel from the Experimental Breeder Reactor II. We succeeded to achieve a good agreement with an overall trend of the experimental data with appropriate selection of a mode for real anode surface area, but there are still local inconsistencies between theoretical calculation and experimental observation. In addition, the results were validated and compared with two-dimensional results to identify possible uncertainty factors that had to be further considered in a computational electrorefining analysis. These uncertainty factors include material properties, heterogeneous material distribution, surface roughness, and current efficiency. Zirconium's abundance and complex behavior have more impact on uncertainty towards the latter period of electrorefining at given batch of fuel. The benchmark results found that anode materials would be dissolved from both axial and radial directions at least for low burn-up metallic fuels after active liquid sodium bonding was dissolved.

Sungyeol Choi; Jaeyeong Park; Robert O. Hoover; Supathorn Phongikaroon; Michael F. Simpson; Kwang-Rag Kim; Il Soon Hwang

2011-09-01T23:59:59.000Z

171

The use of network analysis to study complex animal communication systems: a study on nightingale song  

Science Journals Connector (OSTI)

...the use of network analysis. Network analysis is based on graph theory...for example physics, computer science, linguistics...In biology, network analysis was applied for example...complex communication systems, including human language...

2014-01-01T23:59:59.000Z

172

Video games and prosocial behavior: A study of the effects of non-violent, violent and ultra-violent gameplay  

Science Journals Connector (OSTI)

Abstract Experimental evidence has pointed toward a negative effect of violent video games on social behavior. Given that the availability and presence of video games is pervasive, negative effects from playing them have potentially large implications for public policy. It is, therefore, important that violent video game effects are thoroughly and experimentally explored, with the current experiment focusing on prosocial behavior. 120 undergraduate volunteers (Mage = 19.01, 87.5% male) played an ultra-violent, violent, or non-violent video game and were then assessed on two distinct measures of prosocial behavior: how much they donated to a charity and how difficult they set a task for an ostensible participant. It was hypothesized that participants playing the ultra-violent games would show the least prosocial behavior and those playing the non-violent game would show the most. These hypotheses were not supported, with participants responding in similar ways, regardless of the type of game played. While null effects are difficult to interpret, samples of this nature (undergraduate volunteers, high male skew) may be problematic, and participants were possibly sensitive to the hypothesis at some level, this experiment adds to the growing body of evidence suggesting that violent video game effects are less clear than initially thought.

Morgan J. Tear; Mark Nielsen

2014-01-01T23:59:59.000Z

173

Project Information Form Project Title Bicyclist Behavior in San Francisco: A Before-and-After Study of the  

E-Print Network [OSTI]

Project Information Form Project Title Bicyclist Behavior in San Francisco: A Before(s) and Amounts Provided (by each agency or organization) Caltrans $56,707 Total Project Cost $56,707 Agency ID of Research Project Many cities in California are investing bicycle infrastructure as a way to increase

California at Davis, University of

174

What do Our Faculty Use? An Interdisciplinary Citation Analysis Study  

E-Print Network [OSTI]

During the fall of 2012 and spring of 2013, two librarians from the University of Kansas Libraries conducted a citation analysis of faculty publications in three broad disciplinary areas: humanities, social sciences, and ...

Currie, Lea; Monroe-Gulick, Amalia

2013-01-01T23:59:59.000Z

175

Social Network Analysis: A Methodology for Studying Terrorism  

Science Journals Connector (OSTI)

This chapter aims to bring to the reader an overview of the work done since the 9/11 terrorist attack, in the field of Social Network Analysis as a tool for understanding the underlying pattern /dynamics of te...

Aparna Basu

2014-01-01T23:59:59.000Z

176

Analysis of ignition behavior in a turbocharged direct injection dual fuel engine using propane and methane as primary fuels  

SciTech Connect (OSTI)

This paper presents experimental analyses of the ignition delay (ID) behavior for diesel-ignited propane and diesel-ignited methane dual fuel combustion. Two sets of experiments were performed at a constant speed (1800 rev/min) using a 4-cylinder direct injection diesel engine with the stock ECU and a wastegated turbocharger. First, the effects of fuel-air equivalence ratios (���© pilot �¢���¼ 0.2-0.6 and ���© overall �¢���¼ 0.2-0.9) on IDs were quantified. Second, the effects of gaseous fuel percent energy substitution (PES) and brake mean effective pressure (BMEP) (from 2.5 to 10 bar) on IDs were investigated. With constant ���© pilot (> 0.5), increasing ���© overall with propane initially decreased ID but eventually led to premature propane autoignition; however, the corresponding effects with methane were relatively minor. Cyclic variations in the start of combustion (SOC) increased with increasing ���© overall (at constant ���© pilot), more significantly for propane than for methane. With increasing PES at constant BMEP, the ID showed a nonlinear (initially increasing and later decreasing) trend at low BMEPs for propane but a linearly decreasing trend at high BMEPs. For methane, increasing PES only increased IDs at all BMEPs. At low BMEPs, increasing PES led to significantly higher cyclic SOC variations and SOC advancement for both propane and methane. Finally, the engine ignition delay (EID) was also shown to be a useful metric to understand the influence of ID on dual fuel combustion.

Polk, A. C.; Gibson, C. M.; Shoemaker, N. T.; Srinivasan, K. K.; Krishnan, S. R.

2011-10-05T23:59:59.000Z

177

Meconium Analysis for Cocaine: A Validation Study and Comparison with Paired Urine Analysis  

Science Journals Connector (OSTI)

......positive by both routes; 10 specimens were...analogs & derivatives analysis urine Fluorescence...positive by both routes; 10 specimens were...IL60612-3833. and possibly adversarial proceedings, it...the case of drug analysis in meconium, this...analytical laboratory tool that can measure......

Douglas E. Lewis; Christine M. Moore; Jerrold B. Leikin; Anthony Koller

1995-01-01T23:59:59.000Z

178

A study of micro fiber dispersion using digital image analysis  

E-Print Network [OSTI]

of this dissertation is to investigate the use of texture analysis as a tool to micro fiber dispersion measurement. Micro fiber dispersion can be found in many applications such as in paper and industry powder engineering. Three cases related to micro fiber...

Hendrarsakti, Jooned

2004-11-15T23:59:59.000Z

179

Dinosaur behavior  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dinosaur behavior Dinosaur behavior Name: kevv Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: Did the movie Jurassic Park accurately reflect the known behavior of dinosaurs? Replies: Well, since we do not have an accurate record of that time period (Man showed up about ten million years after T-rex thundered across the plains of Antarctica *grin*) so we cannot say for certain WHAT the dinosaurs did. However, since they were wild animals, we can extrapolate from their modern contemporaries and from our knowledge of their individual anatomies what kind of behaviors they exhibited. A predator with large claws probably hunts by slashing and by piercing and holding on to prey. An herbivore with large spikes growing on its tail probably used them to fend off attackers like a spiked club -- I do not think it was much of a fashion statement

180

Analysis of carrier behavior in C60/P(VDF-TrFE) double-layer capacitor by using electric-field-induced optical second-harmonic generation measurement  

SciTech Connect (OSTI)

By using displacement current measurement (DCM) and electric-field-induced optical second-harmonic generation (EFISHG) measurement, we studied the carrier behavior in the indium-tin oxide (ITO)/Poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))/C60/Au(or Al) capacitors. Two DCM peaks appeared asymmetrically at around ?35.5?V and +30.0?V in the dark. Correspondingly, the EFISHG response from the C60 layer was observed, but the peak positions were different with respect to DCM ones. The results show that the spontaneous polarization of the ferroelectric P(VDF-TrFE) polymeric layer directly affects the electric field in the C60 layer, and thus governs the carrier motion in this layer. As a result, the C60 layer serves like an insulator in the dark, while electrons and holes are captured and released at the interface in response to the turn-over of spontaneous polarization of ferroelectric layer. On the other hand, under white light illumination, C60 layer serves like a conductor due to the increase of photogenerated mobile carriers, and these carriers dominate the carrier motions therein. Our findings here will be helpful for analyzing carrier behaviors in organic electronic devices using ferroelectric polymers.

Cui, Xiaojin [Department of Physical Electronics, Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552 (Japan); State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China); Taguchi, Dai; Manaka, Takaaki; Iwamoto, Mitsumasa, E-mail: iwamoto@pe.titech.ac.jp [Department of Physical Electronics, Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552 (Japan)

2013-12-21T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Tatum Dome field study and analysis of monitoring data  

SciTech Connect (OSTI)

This report is a summary and interpretation of data collected at the Tatum Dome Site during April and May 1984. In addition to raw data, description of field activities and laboratory analytical results are presented. The report also includes all analytical results of shallow well samples from the site, and chemical, mineralogical and mechanical analyses of soil samples collected during April 1985. Analysis and interpretation of laboratory analyses are included.

Fordham, J.W.; Fenske, P.R.

1985-12-01T23:59:59.000Z

182

Crystallization Behavior of Virgin TR-55 Silicone Rubber Measured Using Dynamic Mechanical Thermal Analysis with Liquid Nitrogen Cooling  

SciTech Connect (OSTI)

Dynamic mechanical thermal analysis (DMTA) of virgin TR-55 silicone rubber specimens was conducted. Two dynamic temperature sweep tests, 25 to -100 C and 25 to -70 to 0 C (ramp rate = 1 C/min), were conducted at a frequency of 6.28 rad/s (1 Hz) using a torsion rectangular test geometry. A strain of 0.1% was used, which was near the upper limit of the linear viscoelastic region of the material based on an initial dynamic strain sweep test. Storage (G{prime}) and loss (G{double_prime}) moduli, the ratio G{double_prime}/G{prime} (tan {delta}), and the coefficient of linear thermal expansion ({alpha}) were determined as a function of temperature. Crystallization occurred between -40 and -60 C, with G{prime} increasing from {approx}6 x 10{sup 6} to {approx}4 x 10{sup 8} Pa. The value of {alpha} was fairly constant before ({approx}4 x 10{sup -4} mm/mm- C) and after ({approx}3 x 10{sup -4} mm/mm- C) the transition, and peaked during the transition ({approx}3 x 10{sup -3} mm/mm- C). Melting occurred around -30 C upon heating.

Small IV, W; Wilson, T S

2010-02-11T23:59:59.000Z

183

Technology Analysis - Multi-Path Transportation Futures Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Multi-Path Transportation Futures Study: Vehicle Characterization and Scenario Analyses Multi-Path Transportation Futures Study: Vehicle Characterization and Scenario Analyses The Multi-Path Study began by defining the basic physical characteristics of future advanced midsize cars and midsize SUVs with drivetrain technologies ranging from advanced SI and CI (diesel) engine-based conventional drivetrains through hybrid drivetrains (including plug-ins), to fuel cell hybrids and plug-in hybrids, through pure-electric drivetrains. The study evaluates these vehicles’ fuel economy using Argonne’s PSAT simulation model, estimates their costs, and does detailed analyses of their cost-effectiveness, balancing first costs against fuel savings. The study uses a version of the National Energy Modeling System (developed by the Energy Information Administration in the U.S. Department of Energy) to evaluate several scenarios assuming different vehicle costs (one set based on a literature review, one based on DOE goals) and availability of purchase subsidies.

184

Orientation dependent tensile deformation behavior of two-phase laminate composites: Model analysis and finite element results  

SciTech Connect (OSTI)

A model is presented which allows the distribution of stresses and strains within a two-phase laminate to be determined as a function of the angle between the normal vector to the laminate interfaces and the tensile axis during elastic and elastic-plastic deformation. The model is applied to {alpha}{sub 2}(Ti{sub 3}Al)/{gamma}(TiAl) and, for comparison, to Al/Al{sub 2}O{sub 3} laminates in order to study (a) the transfer of stresses between the two phases due to the mutual deformation constraint at the interphase boundaries and (b) the dependence of the yield stress on the orientation of the lamellae with respect to the tensile axis. The model predictions are in good agreement with the results of finite element computations within the composite except for certain boundary layers at the outer surfaces.

Mertins, H.; Lahann, H.J. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Werkstofforschung] [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Werkstofforschung

1996-03-01T23:59:59.000Z

185

Wind Turbine Gearbox Condition Monitoring Round Robin Study - Vibration Analysis  

SciTech Connect (OSTI)

The Gearbox Reliability Collaborative (GRC) at the National Wind Technology Center (NWTC) tested two identical gearboxes. One was tested on the NWTCs 2.5 MW dynamometer and the other was field tested in a turbine in a nearby wind plant. In the field, the test gearbox experienced two oil loss events that resulted in damage to its internal bearings and gears. Since the damage was not severe, the test gearbox was removed from the field and retested in the NWTCs dynamometer before it was disassembled. During the dynamometer retest, some vibration data along with testing condition information were collected. These data enabled NREL to launch a Wind Turbine Gearbox Condition Monitoring Round Robin project, as described in this report. The main objective of this project was to evaluate different vibration analysis algorithms used in wind turbine condition monitoring (CM) and find out whether the typical practices are effective. With involvement of both academic researchers and industrial partners, the project sets an example on providing cutting edge research results back to industry.

Sheng, S.

2012-07-01T23:59:59.000Z

186

Response Predicting LTCC Firing Shrinkage: A Response Surface Analysis Study  

SciTech Connect (OSTI)

The Low Temperature Cofired Ceramic (LTCC) technology is used in a variety of applications including military/space electronics, wireless communication, MEMS, medical and automotive electronics. The use of LTCC is growing due to the low cost of investment, short development time, good electrical and mechanical properties, high reliability, and flexibility in design integration (3 dimensional (3D) microstructures with cavities are possible)). The dimensional accuracy of the resulting x/y shrinkage of LTCC substrates is responsible for component assembly problems with the tolerance effect that increases in relation to the substrate size. Response Surface Analysis was used to predict product shrinkage based on specific process inputs (metal loading, layer count, lamination pressure, and tape thickness) with the ultimate goal to optimize manufacturing outputs (NC files, stencils, and screens) in achieving the final product design the first time. Three (3) regression models were developed for the DuPont 951 tape system with DuPont 5734 gold metallization based on green tape thickness.

Girardi, Michael; Barner, Gregg; Lopez, Cristie; Duncan, Brent; Zawicki, Larry

2009-02-25T23:59:59.000Z

187

Plutonium Mobility Studies: 216-Z-9 Trench Sample Analysis Results  

SciTech Connect (OSTI)

A variety of analyses were conducted on selected sediment samples collected from two wells (299 W15-46 and 299-W15-48) drilled near the 216-Z-9 Trench to elucidate the form and potential for Pu and Am to be mobilized under present conditions and those that could be expected in future remediation scenarios. Analyses included moisture content, determination of the less than sand size fraction (silt plus clay), carbon analysis, SEM/EDS analysis, microwave-assisted acid digestions for total element analysis, and extraction tests using Hanford groundwater as the leachate. Results of the extraction tests were used as input to conduct equilibrium geochemical modeling of the solutions with Geochemist’s Workbench®. Geochemical modeling results for Pu were evaluated in terms of recent conclusions regarding the solubility and redox reactions of Pu by Neck et al. (2007a, 2007b). It was found that the highest concentrations of Pu and Am were associated with sediments of low silt/clay content and occur above silt/clay rich layers within the sediment profile. It was also found that the Pu and Am were relatively enriched in the silt/clay portion of these samples. The fact that the highest concentrations of Pu and Am occurred in sediments with low silt/clay contents suggests that waste solutions had perched on top of the low permeability silt/clay rich layers and interactions with the high silt/clay layers was minimal. SEM/EDS analysis indicated that the Pu and Am in these sediments does not occur as discrete micron size particles, and therefore must occur as mononuclear or polynuclear/ nanoclusters size particles adsorbed throughout the sediment samples. Leaching of these samples with Hanford groundwater indicates that release of Pu and Am from the sediments is correlated most significantly with the acidity of the water and not the initial concentrations of Pu and Am in the sediments. Only extracts that were acidic after contact with the sediments (pH 4.3 to 5.4) contained detectable concentrations of extractable Pu and Am. Water extracts from samples containing high concentrations of TBP suggest that if the TBP degradation products DBP and MBP are available in these sediments, they do not significantly increase the extractability of Pu or Am. Geochemical modeling results suggest that the concentrations of Am in water in contact with these sediments is not controlled by the solubility of Am(OH)3(c), but rather by desorption of Am that has been previously adsorbed to the sediments during the period of active wastewater disposal. Sediment extracts that had measureable concentrations of Am only occurred in samples that were fairly acidic (pH 4.3 to 4.6), indicating that Am will remain effectively sequestered to sediments when pH conditions approach those of normal Hanford groundwater (mildly alkaline, ~ pH 8). The geochemical modeling results indicate that Pu in acidic extracts is significantly undersaturated with respect to PuO2(am). However, recent reviews of Pu solubility and redox reactions suggest that the data used for these calculations is incomplete (Neck et al. 2007a, 2007b). The results of Neck et al. (2007a, 2007b) suggest that Pu concentrations in solutions in contact with the 216-Z-9 Trench sediment samples might be controlled by a mixed valent solid phase [(PuV)2x(PuIV)1-2xO2+x(am)] with various dissolved Pu(V) complexes and Pu(IV)O2(am) colloids or nanoclusters being the dominant species in solution for typical Hanford groundwater conditions. Adsorption is likely to have a major impact on the mobility of these species (Neck et al. 2007a, 2007b; Clark et al. 2006; Kaplan et al. 2006; Powell et al. 2005). Further research is planned to verify these hypotheses.

Cantrell, Kirk J.; Geiszler, Keith N.; Arey, Bruce W.

2008-09-05T23:59:59.000Z

188

Structural analysis and assessment of Guastavino vaulting  

E-Print Network [OSTI]

This thesis studies the behavior and pathologies of the masonry tile structures built by the R. Guastavino Company in order to provide recommendations on their analysis and assessment. Structural analyses of two specific ...

Reese, Megan L

2008-01-01T23:59:59.000Z

189

A study involving the design and fabrication process on the SRAM behavior during a dose-rate event  

SciTech Connect (OSTI)

The experimental results analysis of TS4T1601 SRAMs in standby mode and electrical simulations show that the SRAM design and some slight mask misalignments during the fabrication process are dominant factors concerning the dose-rate upset patterns and thresholds.

Marec, R.; Gaillard, R. [Nucletudes S.A., Les Ulis (France)] [Nucletudes S.A., Les Ulis (France); Mary, P. [LRBA, Vernon (France)] [LRBA, Vernon (France); Palau, J.M.; Bruguier, G.; Gasiot, J. [Univ. Montpellier II (France). Centre Electronique de Montpellier] [Univ. Montpellier II (France). Centre Electronique de Montpellier

1996-06-01T23:59:59.000Z

190

Exergoeconomic analysis of geothermal district heating systems: A case study  

Science Journals Connector (OSTI)

An exergoeconomic study of geothermal district heating systems through mass, energy, exergy and cost accounting analyses is reported and a case study is presented for the Salihli geothermal district heating system (SGDHS) in Turkey to illustrate the present method. The relations between capital costs and thermodynamic losses for the system components are also investigated. Thermodynamic loss rate-to-capital cost ratios are used to show that, for the devices and the overall system, a systematic correlation appears to exist between capital cost and exergy loss (total or internal), but not between capital cost and energy loss or external exergy loss. Furthermore, a parametric study is conducted to determine how the ratio of thermodynamic loss rate to capital cost changes with reference temperature and to develop a correlation that can be used for practical analyses. The correlations may imply that devices in successful district heating systems such as the SGDHS are configured so as to achieve an overall optimal design, by appropriately balancing the thermodynamic (exergy-based) and economic (cost) characteristics of the overall systems and their devices.

Leyla Ozgener; Arif Hepbasli; Ibrahim Dincer; Marc A. Rosen

2007-01-01T23:59:59.000Z

191

The study of futures, and the analysis of power  

Science Journals Connector (OSTI)

This study attempts to find out in which direction global power distribution is shifting. This is expected to shed light on the chances we have to build a democratic, ecologically sustainable and socially just world future society. The paper raises and explores, to some extent, three questions: (1) Who is the emerging global ruling class, and does it develop some sort of class consciousness? (2) What are the means used by the global ruling class in the class struggle? and (3) What are likely consequences for the future of global society?

Bernd Hamm

2010-01-01T23:59:59.000Z

192

Hierarchical models facilitate spatial analysis of large data sets: a case study on invasive plant species  

E-Print Network [OSTI]

LETTER Hierarchical models facilitate spatial analysis of large data sets: a case study on invasive issues require the analysis of large spatial point data sets ­ for example, modelling species distributions, abundance and spread from survey data. But modelling spatial relationships, especially in large

Silander Jr., John A.

193

Systems study on engineered barriers: barrier performance analysis  

SciTech Connect (OSTI)

A performance assessment model for multiple barrier packages containing unreprocessed spent fuel has been modified and applied to several package designs. The objective of the study was to develop information to be used in programmatic decision making concerning engineered barrier package design and development. The assessment model, BARIER, was developed in previous tasks of the System Study on Engineered Barriers (SSEB). The new version discussed in this report contains a refined and expanded corrosion rate data base which includes pitting, crack growth, and graphitization as well as bulk corrosion. Corrosion rates for oxic and anoxic conditions at each of the two temperature ranges are supplied. Other improvements include a rigorous treatment of radionuclide release after package failure which includes resistance of damaged barriers and backfill, refined temperature calculations that account for convection and radiation, a subroutine to calculate nuclear gamma radiation field at each barrier surface, refined stress calculations with reduced conservatism and various coding improvements to improve running time and core usage. This report also contains discussion of alternative scenarios to the assumed flooded repository as well as the impact of water exclusion backfills. The model was used to assess post repository closure performance for several designs which were all variation of basic designs from the Spent Unreprocessed Fuel (SURF) program. Many designs were found to delay the onset of leaching by at least a few hundreds of years in all geologic media. Long delay times for radionuclide release were found for packages with a few inches of sorption backfill. Release of uranium, plutonium, and americium was assessed.

Stula, R.T.; Albert, T.E.; Kirstein, B.E.; Lester, D.H.

1980-09-01T23:59:59.000Z

194

Pupil's autonomous studying: From an epistemological analysis towards the construction of a  

E-Print Network [OSTI]

1 Pupil's autonomous studying: From an epistemological analysis towards the construction when studying mathematics in an autonomous mode. Even establishing a diagnosis for such difficulties. Introduction The personal work or autonomous studying in mathematics that the pupil must do during "physical

Duchet, Pierre

195

Design of Cleanroom Airflows for Particle Control Using CFD Analysis: Case Studies  

Science Journals Connector (OSTI)

This paper describes two case studies involving the use of Computational Fluid Dynamics (CFD) analysis for evaluating the designs of significantly different types (and cleanliness classes) of cleanrooms: a cla...

Ken Goldstein; John Divelbiss

1993-01-01T23:59:59.000Z

196

MS#040418-01 1 Abstract--The fine scale swimming behavior of fish can now be  

E-Print Network [OSTI]

MS#040418-01 1 Abstract--The fine scale swimming behavior of fish can now be studied because evaluation of the performance of these tracking algorithms for the analysis of fine scale behavior of fish was performed using a data set of 100 fish track tracks recorded simultaneously with a multibeam sonar

Linder, Stephen

197

Evaluating forest fire prevention programs: an analysis of three case studies  

E-Print Network [OSTI]

EVALUATING FOREST FIRE PREVENTION PROGRAMS; AN ANALYSIS OF THREE CASE STUDIES A Thesi. s by Shelley Renee Rigsby Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1980 jor Subject: Sociology EVALUATING FOREST FIRE PREVENTION PROGRAMS: AN ANALYSIS OF THREE CASE STUDIES A Thesis by S. Ranee Rigsby Approved as to style and content by: (Chairman of Committee) p~ (Memb r) (Head f partment...

Rigsby, Shelley Renee

1980-01-01T23:59:59.000Z

198

Nuclear Spin Lattice Relaxation and Conductivity Studies of the Non-Arrhenius Conductivity Behavior in Lithium Fast Ion Conducting Sulfide Glasses  

SciTech Connect (OSTI)

As time progresses, the world is using up more of the planet's natural resources. Without technological advances, the day will eventually arrive when these natural resources will no longer be sufficient to supply all of the energy needs. As a result, society is seeing a push for the development of alternative fuel sources such as wind power, solar power, fuel cells, and etc. These pursuits are even occurring in the state of Iowa with increasing social pressure to incorporate larger percentages of ethanol in gasoline. Consumers are increasingly demanding that energy sources be more powerful, more durable, and, ultimately, more cost efficient. Fast Ionic Conducting (FIC) glasses are a material that offers great potential for the development of new batteries and/or fuel cells to help inspire the energy density of battery power supplies. This dissertation probes the mechanisms by which ions conduct in these glasses. A variety of different experimental techniques give a better understanding of the interesting materials science taking place within these systems. This dissertation discusses Nuclear Magnetic Resonance (NMR) techniques performed on FIC glasses over the past few years. These NMR results have been complimented with other measurement techniques, primarily impedance spectroscopy, to develop models that describe the mechanisms by which ionic conduction takes place and the dependence of the ion dynamics on the local structure of the glass. The aim of these measurements was to probe the cause of a non-Arrhenius behavior of the conductivity which has been seen at high temperatures in the silver thio-borosilicate glasses. One aspect that will be addressed is if this behavior is unique to silver containing fast ion conducting glasses. more specifically, this study will determine if a non-Arrhenius correlation time, {tau}, can be observed in the Nuclear Spin Lattice Relaxation (NSLR) measurements. If so, then can this behavior be modeled with a new single distribution of activation energies (DAE) to calculate the corresponding conductivity and relaxation rates as a function of temperature and frequency?

Benjamin Michael Meyer

2003-05-31T23:59:59.000Z

199

A transmission electron microscopy study of the deformation behavior underneath nanoindents in nano-scale Al-TiN multilayered composites  

SciTech Connect (OSTI)

Nano-scale multilayered Al-TiN composites were deposited with DC magnetron sputtering technique in two different layer thickness ratios - Al:TiN = 1:1 and Al:TiN = 9:1. The Al layer thickness varied from 2 nm to 450 nm. The hardness of the samples was tested by nanoindentation using a Berkovich tip. Cross-sectional Transmission Electron Microscopy (TEM) was carried out on samples extracted with Focused Ion Beam (FIB) from below the nanoindents. This paper presents the results of the hardness tests in the Al-TiN multilayers with the two different thickness ratios and the observations from the cross-sectional TEM studies of the regions underneath the indents. These studies showed remarkable strength in the multilayers, as well as some very interesting deformation behavior in the TiN layers at extremely small length scales, where the hard TiN layers undergo co-deformation with the Al layers.

Bhattacharyya, Dhriti [Los Alamos National Laboratory; Mara, Nathan A [Los Alamos National Laboratory; Dickerson, Patricia O [Los Alamos National Laboratory; Misra, Amit [Los Alamos National Laboratory; Hoagland, R G [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

200

Photon activation analysis as a new technique for body composition studies  

SciTech Connect (OSTI)

A study was undertaken to demonstrate the usefulness of the recently developed photon activation analysis (PAA) technique for in vivo body composition studies. PAA can be used for direct measurement of total-body oxygen, nitrogen, and carbon. Sequential measurements were made on rats fed diets of 0%, 4.2%, or 20% protein for 6 1/2 wk, and significant changes in body composition were noted. In addition, rats of different ages, strains, nutritional states, and degrees of obesity were included in a comparison of PAA results in vivo with results from chemical analysis after sacrifice of the animals. High positive correlations were found between PAA measurements of carbon and chemical analysis measurements of fat and between PAA measurements of oxygen and chemical analysis measurements of total-body water. A low positive correlation was found between PAA measurements of nitrogen and chemical analysis measurements of protein.

Ulin, K.; Meydani, M.; Zamenhof, R.G.; Blumberg, J.B.

1986-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Residential Customer Enrollment in Time-based Rate and Enabling Technology Programs: Smart Grid Investment Grant Consumer Behavior Study Analysis  

E-Print Network [OSTI]

Time-based Rate and Enabling Technology Programs: Smart GridEnvironmental Energy Technologies Division May 2013 The workTime-based Rate and Enabling Technology Programs: Smart Grid

Todd, Annika

2014-01-01T23:59:59.000Z

202

A case study of an expert mathematics teacher's interactive decision-making system using physiological and behavioral time series data  

E-Print Network [OSTI]

The purpose of this exploratory case study was to describe an expert teacher?s decision-making system during interactive instruction using teacher self-report information, classroom observation data, and physiological recordings. Timed recordings...

Jensen, Deborah Larkey

2005-02-17T23:59:59.000Z

203

Behavior-Based Simulation Approach for the Capacity and Traffic Operational Characteristic Study of Four-Way-Stop-Controlled Intersections  

E-Print Network [OSTI]

The objective of the proposed research is to study the traffic operational characteristics at four-way-stop-controlled (FWSC) intersections with single -lane approaches. Observational data were collected at six FWSC ...

Yin, Juan

2010-08-26T23:59:59.000Z

204

Experimental and numerical study of the behavior of three-way catalytic converters under different engine operation conditions  

E-Print Network [OSTI]

The thesis reports the studies on how the three-way catalytic converters behave under different operation conditions. The main focus of the work is in the oxygen storage capacity of the three-way catalyst. Rich-to-lean ...

Zhang, Yuetao

2005-01-01T23:59:59.000Z

205

Cognitive-behavioral therapy for binge eating disorder in adolescents: study protocol for a randomized controlled trial  

Science Journals Connector (OSTI)

An independent Data Monitoring and Safety Committee (DMSC) was established to meet once per year for independent study supervision. The DMSC is composed of three researchers with expertise ... Medical Center and ...

Anja Hilbert

2013-09-01T23:59:59.000Z

206

Scaling Behaviors of Global Sea Surface Temperature  

Science Journals Connector (OSTI)

Temporal scaling properties of the monthly sea surface temperature anomaly (SSTA) in global ocean basins are examined by the power spectrum and detrended fluctuation analysis methods in this paper. Analysis results show that scaling behaviors of ...

Ming Luo; Yee Leung; Yu Zhou; Wei Zhang

207

A study of the relationship between conservation education and scuba diver behavior in the Flower Garden Banks National Marine Sanctuary  

E-Print Network [OSTI]

am a PhD. student in the Recreation, Park and Tourism Sciences department at Texas A&M University. My area of study is marine tourism with an emphasis on conserving natural resources so my coursework focused on ecotourism and environmental...

Belknap, Julia

2009-05-15T23:59:59.000Z

208

Information Recovery In Behavioral Networks  

E-Print Network [OSTI]

In the context of agent based modeling and network theory, we focus on the problem of recovering micro behavior-related choice information from aggregate origin-destination data. As a basis for predicting agents' choices we emphasize the connection between adaptive intelligent behavior, causal entropy maximization and self-organized, equilibrium-seeking behavior in a dynamic system. We cast this problem in the form of a binary network and suggest information theoretic, entropy-driven methods to recover estimates of the unknown parameters connecting the behavioral data. Our objective is to recover the unknown behavioral binary parameters analytically, without explicitly sampling the configuration space. In order to do so, we enlarge the set of estimators commonly employed to make optimal use of the available information. More specifically, we consider the Cressie-Read family of entropic functionals and focus on three cases of particular interest. We then apply this information theoretic method to the analysis ...

Squartini, Tiziano; Garlaschelli, Diego; Judge, George

2015-01-01T23:59:59.000Z

209

Northern Colorado Retail Study: A shift-share analysis 2000 to 2010  

E-Print Network [OSTI]

Northern Colorado Retail Study: A shift-share analysis 2000 to 2010 Everitt Real Estate Center) April 2010 #12;Why this study? · Step back and look at the regional retail picture ­ City government. ­ Over 10.5 million square feet of retail has been developed in Boulder, Larimer, and Weld counties since

210

Heart Rate Regulation processed through wavelet analysis and change detection. Some case studies  

E-Print Network [OSTI]

Heart Rate Regulation processed through wavelet analysis and change detection. Some case studies-mail: veronique.billat@wanadoo.fr December 29, 2010 Abstract Heart rate variability (HRV) is an indicator of the regulation of the heart engine, Task Force (1996). This study compares the regulation of the heart in two

Paris-Sud XI, Université de

211

Electrochemical and XPS studies and the potential scan rate dependent pitting corrosion behavior of Zircaloy-2 in 5% NaCl solution  

Science Journals Connector (OSTI)

Electrochemical studies of Zircaloy-2 in 5% NaCl solution were carried out using polarization and electrochemical impedance spectroscopy (EIS). Scan rate dependent pitting behavior of Zircaloy-2 was observed when polarization experiments were carried out at different scan rates (5 mV/min, 50 mV/min and 500 mV/min). Polarization resistance, double layer capacitance, and the thickness of passive film were calculated from the EIS study. The slope of the Bode plot in the capacitive region showed non-ideal behaviour, suggesting formation of pits. A distribution of chloride concentration was seen at the surface of the electrode when the test solution was sampled from different parts of the sample surface and analyzed for chloride. Inclusion of chloride ions in the passive film was observed from the XPS study and the chloride concentration increases with the higher anodic polarization. The outermost layer of the passive film was rich in hydroxide and oxy-hydroxide. A bi-layer passive film structure on the alloy surface is proposed.

A.K. Satpati; S.V. Phadnis; R.I. Sundaresan

2005-01-01T23:59:59.000Z

212

A study on processing, characterization and erosion wear behavior of silicon carbide particle filled ZA-27 metal matrix composites  

Science Journals Connector (OSTI)

Abstract Metal matrix composites are mostly used as such structural engineering components where solid particle erosion is a common mode of failure. In this article, the study is concentrate on the processing and characterization of ZA-27 metal matrix composite (MMC) reinforced with silicon carbide (SiC) particle in different weight percentage ranging from 0–9 wt% in a step of 3% each and also reported on their solid particle erosion wear response. A widely used and simple liquid metallurgy technique called stir casting technique is used for the fabrication of these composite materials. Erosion trials are made as per the experimental design based on Taguchi’s L16 orthogonal array. Predominantly influential parameters affecting the wear rate are identified. The results indicate that erosion wear rate of this composite is influence more by impact velocity and filler content respectively compare to others factors. It also shows the good filler characteristics of SiC particles as wear rate decreases with the increase in filler content in the matrix material.

Srimant Kumar Mishra; Sandhyarani Biswas; Alok Satapathy

2014-01-01T23:59:59.000Z

213

Analysis of Cycling Costs in Western Wind and Solar Integration Study  

SciTech Connect (OSTI)

The Western Wind and Solar Integration Study (WWSIS) examined the impact of up to 30% penetration of variable renewable generation on the Western Electricity Coordinating Council system. Although start-up costs and higher operating costs because of part-load operation of thermal generators were included in the analysis, further investigation of additional costs associated with thermal unit cycling was deemed worthwhile. These additional cycling costs can be attributed to increases in capital as well as operations and maintenance costs because of wear and tear associated with increased unit cycling. This analysis examines the additional cycling costs of the thermal fleet by leveraging the results of WWSIS Phase 1 study.

Jordan, G.; Venkataraman, S.

2012-06-01T23:59:59.000Z

214

Numerical study for CANDU moderator temperature prediction by using the two-phase flow analysis code, CUPID  

Science Journals Connector (OSTI)

Abstract KAERI has been developing a component-scale thermal–hydraulics code, CUPID. The code adopts a three-dimensional, transient, three-field model for two-phase flow. In this study, we investigated the thermal hydraulic behavior of the moderator inside the Calandria tank of a CANDU reactor by using the CUPID code. At first, we have validated the CUPID code using the experiments that were performed at Stern Laboratories Inc. To avoid the complexity to generate computational geometry around the Calandria tube bundles, a porous media approach was applied for that region and the flow resistance inside the porous media zone was modeled by an empirical correlation. An open media is applied to generate the outer fluid layer including the inlet nozzles. Computational grids near the inlet nozzles should be well-generated because the flow field is very sensitive to the momentum flux from the nozzle. Since the axial flow can be assumed to be invariant for this experiment, a two-dimensional approach was adopted. The mixed flow pattern of forced and natural convection inside the Calandria vessel has been successfully predicted by the CUPID code. The analysis has been further extended to two-phase flow conditions and, then, a map of the local maximum moderator temperature in the Calandria vessel versus the injection flow rate was derived, which can be used to predict the local subcooled margin in the vessel.

Jae Ryong Lee; Sang Gi Park; Han Young Yoon; Hyoung Tae Kim; Jae Jun Jeong

2013-01-01T23:59:59.000Z

215

Socially responsible investment in Malaysia: behavioral framework in evaluating investors' decision making process  

Science Journals Connector (OSTI)

Abstract Socially responsible investment (SRI) is the method of investment decisions on social, ethics, and/or environment within the context of rigorous financial analysis. This study aims to examine the role of intention, attitude, subjective norms, perceived behavioral control and moral norms in explaining SRI behavior by investors in Malaysia. The underlying framework is the Theory of Planned Behavior (TpB) that has been modified to incorporate moral norms as an additional explanatory variable. Studies that apply TpB in their measurement of behavior indicate a mix of explanations for the relationship of constructs that influence behavior through intention which warrant further examinations. The results based on a questionnaire survey of Malaysian investors suggest that attitude, subjective norms and moral norms have positive effect on intention which in turn positively affects behavior towards SRI. The relationship for attitude, subjective norms, and moral norms to behavior is improved significantly by intention as a mediator. Based on squared multiple correlations (R2), it is found that the final structural model could explain 46% of the variance in intention and 50% of the variance in behavior. SRI providers and policy makers should also consider the influence of social pressure from investors' friends and relatives in their SRI decision-making. Investors' personal standards are also found to influence the intention and behavior to invest in SRI.

Ainul Azreen Adam; Elvia R. Shauki

2014-01-01T23:59:59.000Z

216

A meta-analysis of the role of environmentbased voluntariness in information technology acceptance  

Science Journals Connector (OSTI)

The technology acceptance model (TAM) asserts that ease of use and usefulness are two primary determinants of behavioral intention and usage. A parallel research stream emphasizes voluntariness, a key social influence and contextual variable, as a critical ... Keywords: TAM, acceptance, behavioral intention, ease of use, meta-analysis, publication bias, statistical power analysis, study artifacts, system usage, usefulness, voluntariness

Jiming Wu; Albert Lederer

2009-06-01T23:59:59.000Z

217

Analysis of Cycling Costs in Western Wind and Solar Integration Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Analysis of Cycling Costs in Analysis of Cycling Costs in Western Wind and Solar Integration Study Gary Jordan and Sundar Venkataraman GE Energy Schenectady, New York NREL Technical Monitor: Debra Lew Subcontract Report NREL/SR-5500-54864 June 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Analysis of Cycling Costs in Western Wind and Solar Integration Study Gary Jordan and Sundar Venkataraman GE Energy Schenectady, New York NREL Technical Monitor: Debra Lew Prepared under Subcontract No. KLFT-1-11349-01

218

Analysis of coupled body mooring and fender system  

E-Print Network [OSTI]

The hydrodynamic excitation and response behavior of multi-body systems with varying degrees of coupling presents many challenges for designers of offshore structures. In this study, attention is focused upon the analysis and interpretation...

Girija Sasidharan Pillai, Harish

2005-11-01T23:59:59.000Z

219

Comparative Analysis of Non-thermal Emissions and Study of Electron Transport in a Solar Flare  

E-Print Network [OSTI]

We study the non-thermal emissions in a solar flare occurring on 2003 May 29 by using RHESSI hard X-ray (HXR) and Nobeyama microwave observations. This flare shows several typical behaviors of the HXR and microwave emissions: time delay of microwave peaks relative to HXR peaks, loop-top microwave and footpoint HXR sources, and a harder electron energy distribution inferred from the microwave spectrum than from the HXR spectrum. In addition, we found that the time profile of the spectral index of the higher-energy ($\\gsim 100$ keV) HXRs is similar to that of the microwaves, and is delayed from that of the lower-energy ($\\lsim 100$ keV) HXRs. We interpret these observations in terms of an electron transport model called {\\TPP}. We numerically solved the spatially-homogeneous {\\FP} equation to determine electron evolution in energy and pitch-angle space. By comparing the behaviors of the HXR and microwave emissions predicted by the model with the observations, we discuss the pitch-angle distribution of the electrons injected into the flare site. We found that the observed spectral variations can qualitatively be explained if the injected electrons have a pitch-angle distribution concentrated perpendicular to the magnetic field lines rather than isotropic distribution.

T. Minoshima; T. Yokoyama; N. Mitani

2007-10-02T23:59:59.000Z

220

A System Degradation Study of 445 Systems Using Year-Over-Year Performance Index Analysis  

Broader source: Energy.gov [DOE]

This graphic summarizes the results of a study conducted by the SunPower Corporation, to assess the median degradation of a large number of systems. This is important because solar investors need proof of low degradation. The study, a project under DOE's SunShot Initiative, makes use of year-over-year performance index change analysis, a powerful and practical technique for assessing the median degradation of a large fleet of systems, which in this case includes a sample of 445.

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Fast Phylogenetic Methods for the Analysis of Genome Rearrangement Data: An Empirical Study  

E-Print Network [OSTI]

Fast Phylogenetic Methods for the Analysis of Genome Rearrangement Data: An Empirical Study Li Austin, TX 78712 Evolution operates on whole genomes through mutations that change the order and strandedness of genes within the genomes. Thus analyses of gene-order data present new opportunities

Moret, Bernard

222

Fast Phylogenetic Methods for the Analysis of Genome Rearrangement Data: An Empirical Study  

E-Print Network [OSTI]

Fast Phylogenetic Methods for the Analysis of Genome Rearrangement Data: An Empirical Study Li Austin, TX 78712 Evolution operates on whole genomes through mutations that change the order and strandedness of genes within the genomes. Thus analyses of gene­order data present new opportunities

Moret, Bernard

223

A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata Bandyopadhyay1  

E-Print Network [OSTI]

A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata and signal integrity in high-speed signal channels is extremely important. Transmission lines and vias transmission lines (4 mil width) of different lengths arranged in bundles. The eight transmission line bundles

Swaminathan, Madhavan

224

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Life Cycle Analysis (LCA) of  

E-Print Network [OSTI]

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Life Cycle Analysis (LCA or the SEEDS Coordinator about the current status of the subject matter of a project/report". #12;LCA of Doug Mitchell Thunderbird Sports Complex #12;2 LCA of Doug Mitchell Thunderbird Sports Centre Submitted by

225

SunShot Vision Study A Comprehensive Analysis of the Potential for  

E-Print Network [OSTI]

SunShot Vision Study A Comprehensive Analysis of the Potential for U.S. Solar Electricity described a future where energy use and generation are efficient, secure, clean, and affordable. The SunShot and 2020. Achieving these aggressive price targets set by the U.S. Department of Energy (DOE) SunShot

226

A study of effect affecting to energy in drying processby failure modes and effect analysis (FMEA)  

Science Journals Connector (OSTI)

The objective of this research was to study the effect affecting energy in drying process for decreasing humidity. The residual humidity in Para wood affects to expand or shrink when they are fabricated or assembled in window or door frame wood. Finally, ... Keywords: drying process, factorial design, failure modes and effect analysis (FMEA)

Vanchai Laemlaksakul

2011-02-01T23:59:59.000Z

227

Case Study Walnut Hill United Methodist Church - Dallas, Texas, Chiller Replacement Analysis  

E-Print Network [OSTI]

tons of gas-fired double-effect absorption chillers. This case study will show the original HVAC operation cost analysis and compare it to the present day operation costs and it will describe how unexpected changes occurred that caused the initial...

Phillips, J.

1998-01-01T23:59:59.000Z

228

chemical analysis | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

chemical analysis chemical analysis Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a...

229

Three-dimensional, two-species magnetohydrodynamic studies of the early time behaviors of the Combined Release and Radiation Effects Satellite G2 barium release  

SciTech Connect (OSTI)

We present a three-dimensional, two-species (Ba{sup +} and H{sup +}) MHD model to study the early time behaviors of a barium release at about 1 R{sub E} like Combined Release and Radiation Effects Satellite G2, with emphasis placed on the three-dimensional evolution of the barium cloud and its effects on the ambient plasma environment. We find that the perturbations caused by the cloud are the combined results of the initial injection, the radial expansion, and the diamagnetic effect and propagate as fast MHD waves in the magnetosphere. In return, the transverse expansion and the cross-B motion of barium ions are constrained by the magnetic force, which lead to a field-aligned striation of ions and the decoupling of these ions from the neutrals. Our simulation shows the formation and collapse of the diamagnetic cavity in the barium cloud. The estimated time scale for the cavity evolution might be much shorter if photoionization time scale and field aligned expansion of barium ions are considered. In addition, our two species MHD simulation also finds the snowplow effect resulting from the momentum coupling between barium ions and background H{sup +}, which creates density hole and bumps in the background H{sup +} when barium ions expanding along the magnetic field lines.

Xie, Lianghai, E-mail: xielh@nssc.ac.cn; Li, Lei; Wang, Jingdong; Zhang, Yiteng [Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190 (China)] [Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190 (China)

2014-04-15T23:59:59.000Z

230

NASA ExoPAG Study Analysis Group 11: Preparing for the WFIRST Microlensing Survey  

E-Print Network [OSTI]

NASA's proposed WFIRST-AFTA mission will discover thousands of exoplanets with separations from the habitable zone out to unbound planets, using the technique of gravitational microlensing. The Study Analysis Group 11 of the NASA Exoplanet Program Analysis Group was convened to explore scientific programs that can be undertaken now, and in the years leading up to WFIRST's launch, in order to maximize the mission's scientific return and to reduce technical and scientific risk. This report presents those findings, which include suggested precursor Hubble Space Telescope observations, a ground-based, NIR microlensing survey, and other programs to develop and deepen community scientific expertise prior to the mission.

Yee, Jennifer C; Barry, Richard K; Bennett, David; Bryden, Geoff; Chung, Sun-Ju; Gaudi, B Scott; Gehrels, Neil; Gould, Andrew; Penny, Matthew T; Rattenbury, Nicholas; Ryu, Yoon-Hyun; Skowron, Jan; Street, Rachel; Sumi, Takahiro

2014-01-01T23:59:59.000Z

231

Population Studies of Gamma Ray Sources Using Stacking Analysis at Low Galactic Latitudes  

SciTech Connect (OSTI)

We studied the problem of the treatment of uncertainties in the diffuse gamma radiation apparent in stacking analysis of EGRET data at low Galactic latitudes for several classes of sources like PSRs. For those classes of sources we co-added maps of counts, exposure and diffuse background, and residuals, in varying numbers for different sub-categories. Finally we tested for gamma-ray excess emission in those maps and attempt to quantify the systematic biases in such approach. Such kinds of analysis will support and provide confidence in the classification processes of sources and source populations in the GLAST era.

Cillis, Analia N.; /NASA, Goddard; Reimer, Olaf; /Stanford U., HEPL /KIPAC, Menlo Park; Torres, Diego F.; /ICREA, Barcelona /Barcelona, Autonoma U.

2007-11-13T23:59:59.000Z

232

Statistical Survival Analysis of Fish and Wildlife Tagging Studies; SURPH.1 Manual - Analysis of Release-Recapture Data for Survival Studies, 1994 Technical Manual.  

SciTech Connect (OSTI)

Program SURPH is the culmination of several years of research to develop a comprehensive computer program to analyze survival studies of fish and wildlife populations. Development of this software was motivated by the advent of the PIT-tag (Passive Integrated Transponder) technology that permits the detection of salmonid smolt as they pass through hydroelectric facilities on the Snake and Columbia Rivers in the Pacific Northwest. Repeated detections of individually tagged smolt and analysis of their capture-histories permits estimates of downriver survival probabilities. Eventual installation of detection facilities at adult fish ladders will also permit estimation of ocean survival and upstream survival of returning salmon using the statistical methods incorporated in SURPH.1. However, the utility of SURPH.1 far exceeds solely the analysis of salmonid tagging studies. Release-recapture and radiotelemetry studies from a wide range of terrestrial and aquatic species have been analyzed using SURPH.1 to estimate discrete time survival probabilities and investigate survival relationships. The interactive computing environment of SURPH.1 was specifically developed to allow researchers to investigate the relationship between survival and capture processes and environmental, experimental and individual-based covariates. Program SURPH.1 represents a significant advancement in the ability of ecologists to investigate the interplay between morphologic, genetic, environmental and anthropogenic factors on the survival of wild species. It is hoped that this better understanding of risk factors affecting survival will lead to greater appreciation of the intricacies of nature and to improvements in the management of wild resources. This technical report is an introduction to SURPH.1 and provides a user guide for both the UNIX and MS-Windows{reg_sign} applications of the SURPH software.

Smith, Steven G.; Skalski, John R.; Schelechte, J. Warren [Univ. of Washington, Seattle, WA (United States). Center for Quantitative Science

1994-12-01T23:59:59.000Z

233

Coefficient of performance (COP) analysis of geothermal district heating systems (GDHSs): Salihli GDHS case study  

Science Journals Connector (OSTI)

The purpose of this survey is about to analyze the heating coefficient of performance (COP) of geothermal district heating systems. Actual system data are taken from the Salihli GDHS, Turkey. The collected data are quantified and illustrated in tables, particularly for a reference temperature for comparison purposes. In this study, firstly energy and COP analysis of the \\{GDHSs\\} is introduced and then Salihli GDHS coefficient of performance results is given as a case study. Moreover, this paper offers an interesting empirical study of certain geothermal systems.

Leyla Ozgener

2012-01-01T23:59:59.000Z

234

Impact of SYT-SSX Fusion Type on the Clinical Behavior of Synovial Sarcoma: A Multi-Institutional Retrospective Study of 243 Patients  

Science Journals Connector (OSTI)

...Investigations Impact of SYT-SSX Fusion Type on the Clinical Behavior of Synovial...we collected data on SYT-SSX fusion type, pathology, and clinical course...overall survival. The impact of fusion type on survival remained significant...

Marc Ladanyi; Cristina R. Antonescu; Denis H. Leung; James M. Woodruff; Akira Kawai; John H. Healey; Murray F. Brennan; Julia A. Bridge; James R. Neff; Frederic G. Barr; Jeffrey D. Goldsmith; John S. J. Brooks; John R. Goldblum; Syed Z. Ali; Janet Shipley; Colin S. Cooper; Cyril Fisher; Björn Skytting; and Olle Larsson

2002-01-01T23:59:59.000Z

235

A case study on effectiveness of structural reliability analysis in nuclear reactor safety assessment  

Science Journals Connector (OSTI)

Problems on reliability of structural integrity occupy an important position in various aspects of nuclear reactor safety. In the present paper, an effective method for quantitative evaluation of structural reliability based on ‘stress strength model’ is developed with the objectives of taking a larger number of factors into the evaluation than before and giving useful results within moderate computing time. The method is applied to the reliability analysis of PWR pressure vessels. The results show the relative importance of inspection as well as the parameter uncertainty for assuring the reliability of the structure, although analysis is limited within the scope of linear elastic fracture mechanics (LEFM). This case study also shows that the analysis of structural reliability is effective for safety assessment of nuclear power plants in general and possibly for the improvements of the consistency in the design code.

A. Yamaguchi; S. Kondo; Y. Togo

1983-01-01T23:59:59.000Z

236

Analysis and experimental study of a plate-type hydraulic vibration damper for cryogenic rotating machinery  

E-Print Network [OSTI]

as to style and content by: Alan B. Palazzolo (Chair of Committee) Norris Stubbs (Member) Robin C. Redfield (Member) go~ Walter L. Bradley (Head of Department) December 1991 Analysis and Experimental Study of a Plate-Type Hydraulic Vibration Damper... for Cryogenic Rotating Machinery. (December 1991) Emmanuel Angustia Olan, B. S. , Texas A&M University chair of Advisory Committee: Dr. Alan B. palazzolo The objective of this research is to design, construct, investigate, and analyze a plate-type hydraulic...

Olan, Emmanuel Angustia

2012-06-07T23:59:59.000Z

237

Analytic Study of Performance of Error Estimators for Linear Discriminant Analysis with Applications in Genomics  

E-Print Network [OSTI]

, Aniruddha Datta Guy L. Curry Head of Department, Costas N. Georghiades December 2010 Major Subject: Electrical Engineering iii ABSTRACT Analytic Study of Performance of Error Estimators for Linear Discriminant Analysis with Applications in Genomics... : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 133 x LIST OF TABLES TABLE Page I Minimum sample size, n, (n0 = n1 = n) for desired (n;0:5) in univariate case. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 67 II Genes selected using the validity-goodness model selection...

Zollanvari, Amin

2012-02-14T23:59:59.000Z

238

Engineering issue study of triple harmonic method for in situ flying height analysis  

Science Journals Connector (OSTI)

In situ flying height testing technology is becoming more and more important in slider–disk interaction analysis and manufacturing quality control of disk drives and head-related components. Triple harmonic method is a quite promising choice for in situ flying height analysis, compared with other in situ methods reported up to now. This paper reports results of investigations on engineering issues of applying triple harmonic method for in situ flying height analysis. The paper reports results of analysis on the effects of various testing conditions on flying height testing repeatability and accuracy. Results suggest that working at reasonable high channel density and working on the ratio between third and first harmonics will be an advantage in terms of both flying height testing sensitivity and testing repeatability. Comparing with media thickness effect, the gap-length variation among different heads will be important if it is to study flying height difference among different heads and the testing is at high channel density. Also, it is suggested to work at AC erased track, in order to reduce the non-linearity caused by hard transition.

Yipin Zhou; Bo Liu; Lewei Li

2006-01-01T23:59:59.000Z

239

Electrochemical studies of the corrosion behavior of carbon and weathering steels in alternating wet/dry environments with sulfur dioxide gas  

SciTech Connect (OSTI)

Electrochemical impedance techniques were used to investigate the corrosion behavior of carbon steel (CS) and weathering steel (WS) in sulfur dioxide (SO{sub 2})-containing environments. Impedance measurements were conducted in a modified three-electrode electrochemical cell covered by a thin electrolyte layer during the wet/dry period. Results showed WS was more resistant to SO{sub 2}-induced atmospheric corrosion than CS. Three forms of impedance spectra were observed, depending upon exposure period. Accordingly, three impedance models were proposed to explain the characteristic impedance data and corrosion behaviors in different stages of exposure. The proposed models and equivalent circuits produced good agreement with experimental impedance data.

Wang, J.H.; Shih, H.C. [National Tsing Hua Univ., Hsinchu (Taiwan, Province of China). Dept. of Materials Science and Engineering; Wei, F.I. [China Steel Corp., Kaoshiung (Taiwan, Province of China)

1996-08-01T23:59:59.000Z

240

Parametric studies of penetration events : a design and analysis of experiments approach.  

SciTech Connect (OSTI)

A numerical screening study of the interaction between a penetrator and a geological target with a preformed hole has been carried out to identify the main parameters affecting the penetration event. The planning of the numerical experiment was based on the orthogonal array OA(18,7,3,2), which allows 18 simulation runs with 7 parameters at 3 levels each. The strength of 2 of the array allows also for two-factor interaction studies. The seven parameters chosen for this study are: penetrator offset, hole diameter, hole taper, vertical and horizontal velocity of the penetrator, angle of attack of the penetrator and target material. The analysis of the simulation results has been based on main effects plots and analysis of variance (ANOVA), and it has been performed using three metrics: the maximum values of the penetration depth, penetrator deceleration and plastic strain in the penetrator case. This screening study shows that target material has a major influence on penetration depth and penetrator deceleration, while penetrator offset has the strongest effect on the maximum plastic strain.

Chiesa, Michael L.; Marin, Esteban B.; Booker, Paul M.

2005-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Woodlouse locomotor behavior in the assessment of clean and contaminated field sites  

SciTech Connect (OSTI)

Specimens of the woodlouse Oniscus asellus were collected at four clean field sites and from a recently closed iron foundry heavily contaminated with zinc, lead, chromium, and nickel. Each of the 30 woodlice per group was housed individually and acclimatized to laboratory conditions for 2 d on a humid plaster of paris substrate. Thereafter, the locomotor behavior of each animal was measured for 4 h employing automated computer-aided video tracking. Linear discriminant analysis of five locomotor parameters revealed average velocity and path length as the principle components separating the polluted site and control animals. Post hoc analysis of the discriminant variable for animals from all five sites showed that the animals from the polluted site where significantly hyperactive when compared to all controls. Further, control animals collected from sites separated by several hundred kilometers were remarkably similar in their locomotor behavior. This preliminary study highlights the potential utility of quantitative analysis of animal locomotor behavior in environmental monitoring.

Bayley, M.; Baatrup, E. [Aarhus Univ. (Denmark). Inst. of Biological Sciences; Bjerregaard, P. [Odense Univ. (Denmark). Inst. of Biology

1997-11-01T23:59:59.000Z

242

Analysis of the IR-spectral behavior of adsorbed CO formed in H/sub 2/ + CO/sub 2/ surface interaction over supported rhodium  

SciTech Connect (OSTI)

The interaction of hydrogen and carbon dioxide has been investigated by means of infrared spectroscopy on alumina-supported Rh of different crystallite sizes produced by reduction at 573-1173 K with a view to explaining the infrared spectrum of the adsorbed CO produced which is basically different from that observed following CO adsorption on the same samples. It appeared that the adsorbed CO formed on CO/sub 2/ or H/sub 2/ + CO/sub 2/ adsorption did not lead to the formation of gem-dicarbonyl, i.e., to disruption of the Rh-Rh bond. This behavior is attributed to the presence of adsorbed hydrogen and to the formation of Rh carbonyl hydride, which prevents the disruptive effect of adsorbed CO.

Solymosi, F.; Pasztor, M.

1987-04-01T23:59:59.000Z

243

Extended exergy analysis of urban socioeconomic system: a case study of Beijing, 1996-2006  

Science Journals Connector (OSTI)

In this study, a temporal analysis based on extended exergy is conducted for the urban system. The exchange and utilisation of resources, products and labour forces among seven sectors and the environment are quantified. Three new indicators are proposed to measure the resource utilisation efficiency, input/output structure and environmental impact of Beijing during 1996-2006. The following conclusions can be derived: the industrial structure has been updated as the one with more economic value added; the external dependence degree of Ag-sector has significantly increased, suggesting a modernised agricultural production mode despite of the intensive production and negative externalities; the exergy efficiencies of Ex-and Co-sectors are similar to those of Norway, Italy, UK and the province of Siena, and those of Te-sector kept increasing. The results also suggest that extended exergy analysis could be refined to become a tool for efficiency assessment, structural regulation and environmental management.

Gengyuan Liu; Zhifeng Yang; Bin Chen; Meirong Su; Yan Zhang; Lixiao Zhang; Meiming Jiang

2011-01-01T23:59:59.000Z

244

Feasibility study of plutonium isotopic analysis of resin beads by nondestructive gamma-ray spectroscopy  

SciTech Connect (OSTI)

We have initiated a feasibility study on the use of nondestructive low-energy gamma-ray spectroscopy for plutonium isotopic analysis on resin beads. Seven resin bead samples were measured, with each sample containing an average of 9 ..mu..g of plutonium; the isotopic compositions of the samples varied over a wide range. The gamma-ray spectroscopy results, obtained from 4-h counting-time measurements, were compared with mass spectrometry results. The average ratios of gamma-ray spectroscopy to mass spectrometry were 1.014 +- 0.025 for /sup 238/Pu//sup 239/Pu, 0.996 +- 0.018 for /sup 240/Pu//sup 239/Pu, and 0.980 +- 0.038 for /sup 241/Pu//sup 239/Pu. The rapid, automated, and accurate nondestructive isotopic analysis of resin beads may be very useful to process technicians and International Atomic Energy Agency inspectors. 3 refs., 1 fig., 3 tabs.

Li, T.K.

1985-01-01T23:59:59.000Z

245

Lessons Learned on Benchmarking from the International Human Reliability Analysis Empirical Study  

SciTech Connect (OSTI)

The International Human Reliability Analysis (HRA) Empirical Study is a comparative benchmark of the prediction of HRA methods to the performance of nuclear power plant crews in a control room simulator. There are a number of unique aspects to the present study that distinguish it from previous HRA benchmarks, most notably the emphasis on a method-to-data comparison instead of a method-to-method comparison. This paper reviews seven lessons learned about HRA benchmarking from conducting the study: (1) the dual purposes of the study afforded by joining another HRA study; (2) the importance of comparing not only quantitative but also qualitative aspects of HRA; (3) consideration of both negative and positive drivers on crew performance; (4) a relatively large sample size of crews; (5) the use of multiple methods and scenarios to provide a well-rounded view of HRA performance; (6) the importance of clearly defined human failure events; and (7) the use of a common comparison language to “translate” the results of different HRA methods. These seven lessons learned highlight how the present study can serve as a useful template for future benchmarking studies.

Ronald L. Boring; John A. Forester; Andreas Bye; Vinh N. Dang; Erasmia Lois

2010-06-01T23:59:59.000Z

246

Applying planning models to study new competition: Analysis for the Bonneville Power Administration  

Science Journals Connector (OSTI)

An integrated electric utility planning model, the Resource Policy Screening Model (RPSM), was used to project acquisitions from independent power producers made by customers of a US power marketing authority. Bonneville Power Administration (BPA) markets power from dams in the Pacific Northwest to retail utilities. BPA's historical cost advantage has eroded and customers are evaluating more costly nonutility generation to meet future load growth. If some customers will pay a premium above BPA rates for power, how much load could BPA lose? Steps in the analysis are presented. RPSM is a system dynamics model used in energy policy studies since 1983. This study marked the first application for understanding effects of electric industry deregulation on BPA. RPSM was modified, potential nonutility supplies were forecast, and scenario simulations of acquisitions, loads and rates were performed for utilities in the region. Later, the study method was adapted for other uses at BPA.

Franklin Neubauer; Erik Westman; Andrew Ford

1997-01-01T23:59:59.000Z

247

Dynamic behavior of the monomermonomer surface reaction model with adsorbate interactions  

E-Print Network [OSTI]

Dynamic behavior of the monomer­monomer surface reaction model with adsorbate interactions model with an adsorbate interaction term is studied. An epidemic analysis of the poisoning times (tp between the concentration of molecules adsorbed on the surface and the rate of adsorp- tion

Voigt, Chris

248

Overwintering behavior and movement of immature green sea turtles in south Texas waters  

E-Print Network [OSTI]

OF APPENDIX TABLES LIST OF APPENDIX FIGURES INTRODUCTION STUDY AREA METHODS Turtle Capture Tagging Activities Tracking Protocol Data Collection Environmental Monitoring Data Analysis Turtle Identification RESULTS Habitat Characterization... and active. Resting was defined as remaining in the same location with very little directed movement and active behavior as progressive movements throughout the water column and surrounding habitat. Environmental Monitoring Surface and boiiom (depth...

Arms, Stacie Ann

2012-06-07T23:59:59.000Z

249

Electric field and humidity effects on adsorbed water behavior on BaTiO3 ferroelectric domains studied by scanning probe microscopy  

E-Print Network [OSTI]

Electric field and humidity effects on adsorbed water behavior on BaTiO3 ferroelectric domains 2014; published online 28 August 2014) Distribution of the adsorbed water on BaTiO3 ferroelectric, which adsorb on the material surface, cause delayed cracking and fracture of ferroelectric ceramics.15

Volinsky, Alex A.

250

Quantitative analysis of phosphosilicate glass films: Sandia segment of round robin study  

SciTech Connect (OSTI)

Following our previous work on the analysis of phosphosilicate glass films and preparation of calibration standards, we were asked by Division 2141 to participate in an interlaboratory study to develop thin film calibration standards for use by the microcircuits industry. Sandia, Rockwell, Signetics, Balazs Laboratories and Kevex are the initial participants in this study; Bell Labs, Western Electric, NBS, Lawrence Livermore National Laboratory and Intel have also expressed interest in joining the study. We analyzed two sets of 4-inch silicon wafers, which were coated with phosphosilicate glass film using an atmospheric chemical vapor deposition (CVD) process. These samples were analyzed by chemically dissolving the film and determining the P and Si content of the resultant solution using inductively coupled plasma (ICP) atomic emission spectroscopy. As part of the experimental work, we conducted a complete analysis of all errors in the measurement process. The average weight percent phosphorus (+- 1 standard deviation) was 3.78 +- 0.15 for set 1 and 10.3 +- 0.73 for set 2. The average relative error was 6.32% and 5.54% for sets 1 and 2, respectively.

Weissman, S.H.

1984-02-01T23:59:59.000Z

251

Using GPS data in route choice analysis : case study in Boston  

E-Print Network [OSTI]

The pervasive location-based technologies, such as GPS and cell phone, help us find the pattern of geographical information of human behavior and also help dig opportunities in real world. In transportation field, they ...

Hou, Anyang

2010-01-01T23:59:59.000Z

252

Damage analysis and fundamental studies. Quarterly progress report, October-December 1979  

SciTech Connect (OSTI)

Progress on each of the following topics is outlined: (1) rotating target neutron source, (2) fusion materials irradiation test facility, (3) environmental characterization, (4) damage production, and (5) damage microstructure evolution and mechanical behavior. (MOW)

None

1980-02-01T23:59:59.000Z

253

Trainable, Vision-Based Automated Home Cage Behavioral Phenotyping  

E-Print Network [OSTI]

Trainable, Vision-Based Automated Home Cage Behavioral Phenotyping Hueihan Jhuang hueihan computer vision system enabling the automated analysis of complex mouse behaviors. Our system computes of the system, we characterized the home cage behaviors of two standard inbred and two non- standard mouse

Poggio, Tomaso

254

Independent Component Analysis of Microarray Data in the Study of Endometrial (Brief Title: Independent Component Analysis for Gene Arrays)  

E-Print Network [OSTI]

(Brief Title: Independent Component Analysis for Gene Arrays) Samir A. Saidi1 , Cathrine M. Holland4 of Cambridge, Cambridge, CB1 1QP, UK Corresponding author: Samir A Saidi University Department of Obstetrics

Kreil, David

255

Abstract A88: Perceived discrimination and cancer screening behaviors in U.S. Hispanics: Preliminary results from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) Sociocultural Ancillary Study.  

Science Journals Connector (OSTI)

...Preliminary results from the Hispanic Community Health Study/Study...screening tests. Data from the Hispanic Community Health Study / Study...recruited using a 2-stage area household probability design. Of these...Short Acculturation Scale for Hispanics. Adherence to cervical and...

Cristina Valdovinos; Carmen Isasi; Molly Jung; Heather Greenlee; Robert Kaplan; Frank J. Penedo; Rebeca A. Espinoza; Patricia Gonzalez; Vanessa L. Malcarne; Krista Perreira; Hugo Salgado; Melissa A. Simon; and Lisa M. Wruck

2012-10-01T23:59:59.000Z

256

2007 Wholesale Power Rate Case Final Proposal : Risk Analysis Study Documentation.  

SciTech Connect (OSTI)

The RiskMod Model is comprised of a set of risk simulation models, collectively referred to as RiskSim; a set of computer programs that manages data referred to as Data Management Procedures; and RevSim, a model that calculates net revenues. RiskMod interacts with the AURORA Model, the RAM2007, and the ToolKit Model during the process of performing the Risk Analysis Study. AURORA is the computer model being used to perform the Market Price Forecast Study (see Market Price Forecast Study, WP-07-FS-BPA-03); the RAM2007 is the computer model being used to calculate rates (see Wholesale Power Rate Development Study, WP-07-FS-BPA-05); and the ToolKit is the computer model being used to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard (see Section 3 in the Risk Analysis Study, WP-07-FS-BPA-04). Variations in monthly loads, resources, natural gas prices, forward market electricity prices, transmission expenses, and aluminum smelter benefit payments are simulated in RiskSim. Monthly spot market electricity prices for the simulated loads, resources, and natural gas prices are estimated by the AURORA Model. Data Management Procedures facilitate the format and movement of data that flow to and/or from RiskSim, AURORA, and RevSim. RevSim estimates net revenues using risk data from RiskSim, spot market electricity prices from AURORA, loads and resources data from the Load Resource Study, WP-07-FS-BPA-01, various revenues from the Revenue Forecast component of the Wholesale Power Rate Development Study, WP-07-FSBPA-05, and rates and expenses from the RAM2007. Annual average surplus energy revenues, purchased power expenses, and section 4(h)(10)(C) credits calculated by RevSim are used in the Revenue Forecast and the RAM2007. Heavy Load Hour (HLH) and Light Load Hour (LLH) surplus and deficit energy values from RevSim are used in the Transmission Expense Risk Model. Net revenues estimated for each simulation by RevSim are input into the ToolKit Model to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard. The processes and interaction between each of the models and studies are depicted in Graph 1.

United States. Bonneville Power Administration.

2006-07-01T23:59:59.000Z

257

2007 Wholesale Power Rate Case Initial Proposal : Risk Analysis Study Documentation.  

SciTech Connect (OSTI)

The RiskMod Model is comprised of a set of risk simulation models, collectively referred to as RiskSim; a set of computer programs that manages data referred to as Data Management Procedures; and RevSim, a model that calculates net revenues. RiskMod interacts with the AURORA Model, the RAM2007, and the ToolKit Model during the process of performing the Risk Analysis Study. AURORA is the computer model being used to perform the Market Price Forecast Study (see Market Price Forecast Study, WP-07-E-BPA-03); the RAM2007 is the computer model being used to calculate rates (see Wholesale Power Rate Development Study, WP-07-E-BPA-05); and the ToolKit is the computer model being used to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard (see Section 3 in the Risk Analysis Study, WP-07-E-BPA-04). Variations in monthly loads, resources, natural gas prices, forward market electricity prices, transmission expenses, and aluminum smelter benefit payments are simulated in RiskSim. Monthly spot market electricity prices for the simulated loads, resources, and natural gas prices are estimated by the AURORA Model. Data Management Procedures facilitate the format and movement of data that flow to and/or from RiskSim, AURORA, and RevSim. RevSim estimates net revenues using risk data from RiskSim, spot market electricity prices from AURORA, loads and resources data from the Load Resource Study, WP-07-E-BPA-01, various revenues from the Revenue Forecast component of the Wholesale Power Rate Development Study, WP-07-E-BPA-05, and rates and expenses from the RAM2007. Annual average surplus energy revenues, purchased power expenses, and section 4(h)(10)(C) credits calculated by RevSim are used in the Revenue Forecast and the RAM2007. Heavy Load Hour (HLH) and Light Load Hour (LLH) surplus and deficit energy values from RevSim are used in the Transmission Expense Risk Model. Net revenues estimated for each simulation by RevSim are input into the ToolKit Model to develop the risk mitigation package that achieves BPA's 92.6 percent TPP standard. The processes and interaction between each of the models and studies are depicted in Graph 1.

United States. Bonneville Power Administration.

2005-11-01T23:59:59.000Z

258

Investment efficiency in the Italian water service industry: a benchmarking study using data envelopment analysis (DEA)  

Science Journals Connector (OSTI)

The paper presents a benchmarking study of the Italian water service industry using data envelopment analysis. Sample investigated in the study includes 38 optimal territorial areas (ATOs), where the ATO is a well circumscribed geographical area where the provision of integrated water services is considered efficient. Results of DEA implementation show that the average pure technical and scale efficiency are situated at 92.62% and 93.91%, respectively, while the average technical efficiencies score is 87.61%. Findings also support the idea that there might be an optimal size of ATOs which is associated to higher efficiency scores and that agglomeration economies are important in the provision of water integrated services. Large scale operations and ATO size are associated to lower efficiency rates.

Corrado Lo Storto

2011-01-01T23:59:59.000Z

259

Physink: sketching physical behavior  

E-Print Network [OSTI]

Describing device behavior is a common task that is currently not well supported by general animation or CAD software. We present PhysInk, a system that enables users to demonstrate 2D behavior by sketching and directly ...

Davis, Randall

260

Study of the correlation between the coal calorific value and coal ash content using X-ray fluorescence analysis  

Science Journals Connector (OSTI)

In this paper we have studied the possibility of determining the chemical elements in coal samples using X-ray fluorescence analysis and have found a relationship between the coal calorific value and its ash cont...

D. Bolortuya; P. Zuzaan; M. V. Gustova…

2013-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Empirical essays on firm behavior in India  

E-Print Network [OSTI]

In this thesis, I study the behavior of industrial firms in India in the electricity market and with respect to locational choice and environmental regulation. In the first chapter, I study the competitive effects of ...

Ryan, Nicholas (Nicholas James)

2012-01-01T23:59:59.000Z

262

Probabilistic Characterization of Adversary Behavior in Cyber Security  

SciTech Connect (OSTI)

The objective of this SMS effort is to provide a probabilistic characterization of adversary behavior in cyber security. This includes both quantitative (data analysis) and qualitative (literature review) components. A set of real LLNL email data was obtained for this study, consisting of several years worth of unfiltered traffic sent to a selection of addresses at ciac.org. The email data was subjected to three interrelated analyses: a textual study of the header data and subject matter, an examination of threats present in message attachments, and a characterization of the maliciousness of embedded URLs.

Meyers, C A; Powers, S S; Faissol, D M

2009-10-08T23:59:59.000Z

263

Market Analysis - Center for Transportation Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Market Analysis Market Analysis Annual market reports; market data resource center; supply chain, financial, and life cycle analyses; pilot studies for renewables and efficiency at scale. Primary Contact: David Greene Previous and Ongoing Analyses : Market Analysis for Energy Technologies and Fuels Greene, D.L., Leiby, P.N., Bowman, D. (2007). "Integrated Analysis of Market Transformation Scenarios with HyTrans" ORNL/TM-2007/094, Oak Ridge National Laboratory, Oak Ridge, Tennessee, June. (David Greene, Paul Leiby) Impact of advanced vehicle technologies (e.g. PHEV, EV and FCV) on petroleum use and carbon emissions depends on many technological, behavior, market and policy factors. A consumer choice model with 1458 market segments for the period 2005-2050 has been developed to investigate the

264

Scratch behavior of polymers  

E-Print Network [OSTI]

is focused on the analytical and numerical examination of the mechanical response of polypropylene (PP) under scratch deformation by a semi- spherical indenter. The finite element (FE) method is employed as the analysis technique and ABAQUS ? , a... ? ) ?.?????????...????... 152 1 CHAPTER I INTRODUCTION This study is concerned with the analytical and numerical examination of the mechanical response of polypropylene (PP) under scratch deformation by a semi- spherical indenter. The goal of this study is to apply...

Lim, Goy Teck

2005-11-01T23:59:59.000Z

265

Comparative Analysis of Modeling Studies on China's Future Energy and Emissions Outlook  

SciTech Connect (OSTI)

The past decade has seen the development of various scenarios describing long-term patterns of future Greenhouse Gas (GHG) emissions, with each new approach adding insights to our understanding of the changing dynamics of energy consumption and aggregate future energy trends. With the recent growing focus on China's energy use and emission mitigation potential, a range of Chinese outlook models have been developed across different institutions including in China's Energy Research Institute's 2050 China Energy and CO2 Emissions Report, McKinsey & Co's China's Green Revolution report, the UK Sussex Energy Group and Tyndall Centre's China's Energy Transition report, and the China-specific section of the IEA World Energy Outlook 2009. At the same time, the China Energy Group at Lawrence Berkeley National Laboratory (LBNL) has developed a bottom-up, end-use energy model for China with scenario analysis of energy and emission pathways out to 2050. A robust and credible energy and emission model will play a key role in informing policymakers by assessing efficiency policy impacts and understanding the dynamics of future energy consumption and energy saving and emission reduction potential. This is especially true for developing countries such as China, where uncertainties are greater while the economy continues to undergo rapid growth and industrialization. A slightly different assumption or storyline could result in significant discrepancies among different model results. Therefore, it is necessary to understand the key models in terms of their scope, methodologies, key driver assumptions and the associated findings. A comparative analysis of LBNL's energy end-use model scenarios with the five above studies was thus conducted to examine similarities and divergences in methodologies, scenario storylines, macroeconomic drivers and assumptions as well as aggregate energy and emission scenario results. Besides directly tracing different energy and CO{sub 2} savings potential back to the underlying strategies and combination of efficiency and abatement policy instruments represented by each scenario, this analysis also had other important but often overlooked findings.

Zheng, Nina; Zhou, Nan; Fridley, David

2010-09-01T23:59:59.000Z

266

Demographic and Behavioral Sciences Branch  

E-Print Network [OSTI]

. According to projections from the U.S. Bureau of the Census, by 2040, non-Hispanic white children will make. (Projections of the Total Resident Population by 5-Year Age Groups, Race, and Hispanic Origin with Special Age and household behavior. G. Father caring for his child. The Fragile Families and Child Well-Being Study (R01 HD

Rau, Don C.

267

Lightweight embedded software performance analysis method by kernel hack and its industrial field study  

Science Journals Connector (OSTI)

Despite advances in software testing technologies, there are still limitations in directly applying them to embedded software. Since the operational environment of embedded software has severe resource constraints, it is necessary to develop a lightweight testing method that has little impact on the operational environment of embedded software. We propose an agent-based performance analysis method to hack kernel performance counters that manage the system's execution information. The proposed method enables us to collect data required for analyzing performance bottlenecks and identify the causes and locations of bottlenecks with little impact on the test target system's operational environment. We introduce a test automation tool called Analytic Master of System v2.0 that we developed by employing our proposed method. Presently, Analytic Master of System v2.0 is being utilized as a standard tool for performance testing of embedded systems in the automotive industry. In addition, we suggest a guideline for performance analysis and improvement by introducing an industrial field study among our best practices, which analyze the relationship between the memory fault processing of the operating system and the application processing speed.

Jooyoung Seo; Byoungju Choi; Sueng-wan Yang

2012-01-01T23:59:59.000Z

268

Microstructural study by XRD profile analysis and TEM observations on hydrided recrystallized Zircaloy-4  

SciTech Connect (OSTI)

Zircaloy-4, used as cladding tube material in the nuclear reactors, may become brittle due to the precipitation of hydrides. During hydride formation, the anisotropic misfit strains between hydrides and the hexagonal-close-packed zirconium matrix results in a preferred orientation of the hydride platelets in the anisotropic stress field caused by non-relieved fabrication residual stresses and misfit stresses. To understand the mechanism of rupture and to predict the threshold stresses for hydride stress orientation, it is necessary to study the residual stresses, especially the microstrain caused by crystalline lattice misfit, in a hydrided specimen. The X-ray diffraction profile analysis is very sensitive to all the microstructure evolution in metallic materials. It is a non-destructive and voluminal technique compared with transmission electron microscope observation. The XRD peak broadening can be related closely with the microstrain in case of hydrided Zircaloy-4, because the hydride formation creates in general a great number of dislocations which contributes especially to the diminution of coherent domain size and to the increase of microstrain. To calibrate the internal microstrain due to precipitation effect of hydrided specimens, XRD profile analysis has also been realized on the non-hydrided specimens deformed by uniaxial tension. In this paper the authors restrict to analyzing the results about the recrystallized state, because more informations about the anisotropic elasticity, plasticity, thermal expansion, neutron diffraction measurement and the crystallographic texture results are available.

Bai, J.B. (Lab. MSS/MAT, CNRS URA 850, Ecole Centrale Paris, 92295 Chatenay Malabry Cedex (FR)); Gilbon, D. (LM3, CNRS URA 1219, ENSAM, 151 Bd. de l'Hopital, 75013 Paris (FR)); Lebrun, J.L. (CEA/DTA/CEREM/DTM/SRMA, C.E. Saclay, 91191 Gif-sur-Yvette Cedex (FR))

1992-02-01T23:59:59.000Z

269

Non-IIDness Learning in Behavioral and Social Data  

Science Journals Connector (OSTI)

......working mechanisms and driving forces of the system dynamics and...Coupled behaviors play a more fundamental role than individuals in the...Roane, H. (eds.) (2011) Handbook of Applied Behavior Analysis...Social Network Analysis: A Handbook. Sage Publications, Newbury......

Longbing Cao

2014-09-01T23:59:59.000Z

270

Analysis of air pollution and greenhouse gases. Initial studies, FY 1991  

SciTech Connect (OSTI)

The current objective of the project ``Analysis of Air Pollution and Greenhouse Gases`` is to develop a study of emissions and emission sources that could easily be linked to models of economic activity. Initial studies were conducted to evaluate data currently available linking activity rates and emissions estimates. The emissions inventory developed for the National Acid Precipitation Assessment Program (NAPAP) presents one of the most comprehensive data sets, and was chosen for our initial studies, which are described in this report. Over 99% of the SO{sub 2} emissions, 98% of the NO{sub x} emission and 57% of the VOC emissions from area sources are related to fuel combustion. The majority of emission from these sources are generated by the transportation sector. Activity rates for area sources are not archived with the NAPAP inventory; alternative derivations of these data will be part of the future activities of this project. The availability and completeness of the fuel heat content data in the NAPAP inventory were also studied. Approximately 10% of the SO{sub 2} emissions, 13% of the NO{sub x} emissions and 46% of the VOC emissions are generated by sources with unavailable data for fuel heat content. Initial estimates of pollutant emission rate per unit fuel heat content. Initial estimates of pollutant emission rate per unit fuel heat content were generated. Future studies for this project include the derivation of activity rates for area sources, improved explanations for the default fuel parameters defined in the NAPAP inventory and the development of links to data bases of economic activity.

Benkovitz, C.M.

1992-03-01T23:59:59.000Z

271

DOE Hydrogen Analysis Repository: H2A Case Study: Future Central Nuclear  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nuclear Nuclear Project Summary Full Title: H2A Case Study: Longer-Term (2020-2030) Advanced Nuclear Energy - High Temperature (Steam) Electrolysis Project ID: 237 Principal Investigator: Dan Mears Keywords: Hydrogen production; nuclear; electrolysis; water Purpose The purpose of this analysis was to analyze the technical and economic aspects of a process for production of hydrogen from the high-temperature electrolysis of water using advance nuclear technology. Performer Principal Investigator: Dan Mears Organization: Technology Insights Address: 6540 Lusk Blvd., Suite C-102 San Diego, CA 92121 Telephone: 858-455-9500 Email: mears@ti-sd.com Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov Period of Performance

272

DOE Hydrogen Analysis Repository: H2A Case Study: Future Distributed  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Natural Gas Steam Reformer Natural Gas Steam Reformer Project Summary Full Title: H2A Case Study: Future (2025) Natural Gas Steam Reformer (SMR) at Forecourt 1500 kg/day Project ID: 243 Principal Investigator: Brian James Keywords: Hydrogen production; forecourt; distributed; ethanol; steam reforming Purpose The purpose of this analysis is to determine a baseline delivered cost of hydrogen for the forecourt production of hydrogen from ethanol steam reforming. Performer Principal Investigator: Brian James Organization: Directed Technologies, Inc. (DTI) Address: 3601 Wilson Blvd., Suite 650 Arlington, VA 22201 Telephone: 703-243-3383 Email: Brian_James@DirectedTechnologies.com Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov

273

DOE Hydrogen Analysis Repository: H2A Case Study: Current Central Biomass  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Current Central Biomass Current Central Biomass Project Summary Full Title: H2A Case Study: Current (2005) Hydrogen from Biomass via Gasification and Catalytic Steam Reforming Project ID: 229 Principal Investigator: Darlene Steward Keywords: Biomass; pressure swing adsorption (PSA); water gas shift reaction (WGSR); costs; hydrogen production; gasifier Purpose The purpose of this analysis was to determine the production cost of hydrogen from biomass via the FERCO indirectly-heated gasifier. Performer Principal Investigator: Darlene Steward Organization: National Renewable Energy Laboratory (NREL) Address: 1617 Cole Blvd. Golden, CO 80401-3393 Telephone: 303-275-3837 Email: Darlene_Steward@nrel.gov Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov

274

DOE Hydrogen Analysis Repository: H2A Case Study: Current Distributed  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Natural Gas Steam Reformer Natural Gas Steam Reformer Project Summary Full Title: H2A Case Study: Current (2005) Steam Methane Reformer (SMR) at Forecourt 1500 kg/day Project ID: 236 Principal Investigator: Brian James Keywords: Hydrogen production; forecourt; steam methane reforming; natural gas; distributed Purpose The purpose of this analysis is to determine a baseline delivered cost of hydrogen for the forecourt production of hydrogen from natural gas steam reforming. Performer Principal Investigator: Brian James Organization: Directed Technologies, Inc. (DTI) Address: 3601 Wilson Blvd., Suite 650 Arlington, VA 22201 Telephone: 703-243-3383 Email: Brian_James@DirectedTechnologies.com Sponsor(s) Name: Fred Joseck Organization: DOE/EERE/HFCIT Telephone: 202-586-7932 Email: Fred.Joseck@ee.doe.gov

275

DOE Hydrogen Analysis Repository: H2A Case Study: Current Central Natural  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Natural Gas Reforming without Sequestration Natural Gas Reforming without Sequestration Project Summary Full Title: H2A Case Study: Current (2005) Central Hydrogen from Natural Gas without CO2 Capture and Sequestration Project ID: 233 Principal Investigator: Darlene Steward Keywords: Hydrogen production; steam methane reforming; natural gas Purpose Steam reforming of hydrocarbons continues to be the most efficient, economical, and widely used process for production of hydrogen and hydrogen/carbon monoxide mixtures. The purpose of this analysis is to assess the economic production of hydrogen from the steam reforming of natural gas. Performer Principal Investigator: Darlene Steward Organization: National Renewable Energy Laboratory (NREL) Address: 1617 Cole Blvd. Golden, CO 80401-3393 Telephone: 303-275-3837

276

Efficiency analysis of hydroelectric generating plants: A case study for Portugal  

Science Journals Connector (OSTI)

This paper estimates changes in total productivity, breaking this down into technically efficient change and technological change, by means of data envelopment analysis (DEA) applied to the hydroelectric energy generating plants of EDP — the Portugal Electricity Company. The aim of this procedure is to seek out those best practices that will lead to improved performance in the energy market. We rank the plants according to their change in total productivity for the period 2001–2004, concluding that some plants experienced productivity growth while others experienced a decrease in productivity. The implications arising from the study are that EDP should adopt an internal benchmark management procedure in order to evaluate the relative position of each hydroelectric generating plant and to adopt managerial strategies designed to catch up with the frontier of “best practices”. As the frontier is shifting along the time, constant efforts are needed in this respect along the time.

Carlos Pestana Barros

2008-01-01T23:59:59.000Z

277

Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Analysis Analysis of Short-Bunch Production with the APS Booster and a Bunch Compressor Michael Borland, AOD/OAG ∗ August 8, 2003 1 Abstract There is significant interest among x-ray scientists in short-pulse x-rays. The x-rays from the APS ring, although very bright, are produced by an electron bunch with an rms length of more than 30 ps. Typically, it is only a linear accelerator that can produce a very short bunch. An idea was brought to my attention by Glenn Decker that might allow us to produce a short bunch using the APS booster. This idea involves extracting the beam from the booster at 3 to 4 GeV, while it is still relatively short, then compressing it with a magnetic bunch compressor. In this note, we present a preliminary analysis of this idea, along with the related idea of using a nonequilibrium beam from the APS photoinjector. 2 Background We will begin with an examination of the ideal result

278

SCATTERING BEHAVIOR OF TRANSITIONAL SHOCK WAVES  

E-Print Network [OSTI]

SCATTERING BEHAVIOR OF TRANSITIONAL SHOCK WAVES Kevin R. Zumbrun Bradley J. Plohr Dan Marchesin September, 1991 Abstract. We study the stability and asymptotic behavior of transitional shock waves as solutions of a parabolic system of conservation laws. In contrast to classical shock waves, transitional

New York at Stoney Brook, State University of

279

Exergy analysis and experimental study of a vapor compression refrigeration cycle  

Science Journals Connector (OSTI)

This article presents a detailed experimental analysis of 2TR (ton of refrigeration) vapor compression refrigeration cycle for different percentage of refrigerant charge using exergy analysis. An experimental set...

S. Anand; S. K. Tyagi

2012-11-01T23:59:59.000Z

280

One Work Analysis, Two Domains: A Display Information Requirements Case Study  

E-Print Network [OSTI]

d observations, among other techniques. Given the time and resources required, we examine how to generalize a work domain analysis technique, namely the hybrid Cognitive Task Analysis (hCTA) method across two domains in ...

Cummings, M. L.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Tatum Dome field study report and monitoring data analysis: A supplemental report  

SciTech Connect (OSTI)

This report is a supplement to the Water Resources Center, Desert Research Institute report, DOE/NV/10384-03, ``Tatum Dome Field Study Report and Monitoring Data Analysis,`` Water Resources Center Publication No. 45044. The field study was initiated during the Spring of 1984 because of persistent tritium concentrations in the Surficial Aquifer determined from observed annual water samples from the series of hydrologic monitoring holes (HMH). An anomalous increase in tritium concentrations in monthly water samples from some of the hydrologic monitoring holes was also observed during the Spring of 1984 by the State of Mississippi, Division of Radiological Health. This Spring increase in tritium concentrations may well have been present earlier, but was not recognized because monthly tritium concentration data were not collected prior to 1984. It is hypothesized that groundwater in the Surficial Aquifer is made up of two layers. The older and deeper water within the Surficial Aquifer contains tritium contamination. The shallower water, infiltrating from recent precipitation, is essentially tritium free. These waters do not naturally mix completely and are only significantly mixed in the hydrologic monitoring holes by the sampling procedure. The quantity of shallow infiltrating precipitation available for mixing varies inversely with the rate of evapotranspiration. Since dispersive mixing along the boundary between the two waters also occurs as a result of groundwater movement, the average concentration of tritium in the Surficial Aquifer is decreased by dilution as well as radioactive decay.

Fenske, P.R.

1989-09-01T23:59:59.000Z

282

Tatum Dome field study report and monitoring data analysis: A supplemental report  

SciTech Connect (OSTI)

This report is a supplement to the Water Resources Center, Desert Research Institute report, DOE/NV/10384-03, Tatum Dome Field Study Report and Monitoring Data Analysis,'' Water Resources Center Publication No. 45044. The field study was initiated during the Spring of 1984 because of persistent tritium concentrations in the Surficial Aquifer determined from observed annual water samples from the series of hydrologic monitoring holes (HMH). An anomalous increase in tritium concentrations in monthly water samples from some of the hydrologic monitoring holes was also observed during the Spring of 1984 by the State of Mississippi, Division of Radiological Health. This Spring increase in tritium concentrations may well have been present earlier, but was not recognized because monthly tritium concentration data were not collected prior to 1984. It is hypothesized that groundwater in the Surficial Aquifer is made up of two layers. The older and deeper water within the Surficial Aquifer contains tritium contamination. The shallower water, infiltrating from recent precipitation, is essentially tritium free. These waters do not naturally mix completely and are only significantly mixed in the hydrologic monitoring holes by the sampling procedure. The quantity of shallow infiltrating precipitation available for mixing varies inversely with the rate of evapotranspiration. Since dispersive mixing along the boundary between the two waters also occurs as a result of groundwater movement, the average concentration of tritium in the Surficial Aquifer is decreased by dilution as well as radioactive decay.

Fenske, P.R.

1989-09-01T23:59:59.000Z

283

Lower Columbia River and Estuary Ecosystem Restoration Program Reference Site Study: 2011 Restoration Analysis - FINAL REPORT  

SciTech Connect (OSTI)

The Reference Site (RS) study is part of the research, monitoring, and evaluation (RME) effort developed by the Action Agencies (Bonneville Power Administration [BPA], U.S. Army Corps of Engineers, Portland District [USACE], and U.S. Bureau of Reclamation) in response to Federal Columbia River Power System (FCRPS) Biological Opinions (BiOp). While the RS study was initiated in 2007, data have been collected at relatively undisturbed reference wetland sites in the LCRE by PNNL and collaborators since 2005. These data on habitat structural metrics were previously summarized to provide baseline characterization of 51 wetlands throughout the estuarine and tidal freshwater portions of the 235-km LCRE; however, further analysis of these data has been limited. Therefore, in 2011, we conducted additional analyses of existing field data previously collected for the Columbia Estuary Ecosystem Restoration Program (CEERP) - including data collected by PNNL and others - to help inform the multi-agency restoration planning and ecosystem management work underway in the LCRE.

Borde, Amy B.; Cullinan, Valerie I.; Diefenderfer, Heida L.; Thom, Ronald M.; Kaufmann, Ronald M.; Zimmerman, Shon A.; Sagar, Jina; Buenau, Kate E.; Corbett, C.

2012-05-31T23:59:59.000Z

284

Impact of Municipal Solid Waste (MSW) Quality on the Behavior of Alkali Metals and Trace Elements during Combustion: A Thermodynamic Equilibrium Analysis  

Science Journals Connector (OSTI)

Light, thermal- and bacterial-resistant, and inexpensive leathers, especially in the footwear industry, are obtained by the Cr tanning method. ... The selected waste items are representing the major combustible fractions found in MSW, i.e. paper, plastic, textile, and biogenic materials (both food and biomass), but also the other waste fraction (a mixed and poorly defined fraction). ... Pedersen et al.(6) studies six different waste fractions separately under different operational conditions in a full-scale incinerator: NaCl (road salt), household batteries, automotive shredder waste (rubber and plastics), Cu?Cr?As (CCA)-impregnated wood, PVC, and shoes (leather mainly). ...

Michae?l Becidan; Lars Sørum; Daniel Lindberg

2010-05-21T23:59:59.000Z

285

Experimental Study of Effect of Aging and Self-healing Behavior of Glass/Ceramic Sealant on Glass/Ceramic Sealant Used in SOFC  

SciTech Connect (OSTI)

High operating temperature of solid oxide fuel cells require that sealant must function at high temperature between 600o and 900oC and in the oxidizing and reducing environments of fuel and air. In this paper, experiment tests were implemented to investigate the effect of aging time and self-healing behavior of the glass ceramic sealant used in solid oxide fuel cells (SOFCs) on its mechanical properties. With longer heat treatment or aging time during operation, further crystallization may reduce the residual glass content while boosting the ceramic crystalline content. Meanwhile, the micro-damage was induced by the cooling down process from the operating temperature to the room temperature, which can potentially degrade the mechanical properties of the glass/ceramic sealant. During the reheat of the SOFC to the operating temperature, the glass/ceramic sealant exhibits the possible self-healing characterization, which can restore the mechanical performance of the glass/ceramic sealant.

Liu, Wenning N.; Sun, Xin; Koeppel, Brian J.; Khaleel, Mohammad A.

2008-10-09T23:59:59.000Z

286

A Comparative Study on AC Conductivity and Dielectric Behavior of Multiwalled Carbon Nanotubes and Polyaniline Coated Multiwalled Carbon Nanotubes Filled High Density Polyethylene-Carbon Black Nanocomposites  

SciTech Connect (OSTI)

This paper presents an experimental investigation on AC conductivity and dielectric behavior of carbon black reinforced high density polyethylene (HDPE-CB) and HDPE-CB filled with multiwalled carbon nanotubes (MWNTs-CB-HDPE) and Polyaniline (PAni) coated MWNTs-CB-HDPE nanocomposites. The electrical properties such as dielectric constant ({epsilon}'), dissipation factor (tan {delta}) and AC conductivity ({sigma}{sub ac}) of nanocomposites have been measured with reference to the weight fraction (0.5 and 1 wt% MWNTs), frequency (75 KHz-30 MHz), temperature (25-90 deg. C) and sea water ageing. The experimental results showed that the increased AC conductivity and dielectric constant of the nanocomposites were influenced by PAni coated MWNTs in HDPE-CB nanocomposites. The value of dielectric constant and tan {delta} decreased with increasing frequency. Further more, above 5 MHz the AC conductivity increases drastically whereas significant effect on tan {delta} was observed in less than 1 MHz.

Dinesh, P. [Department of Electronics and Communication, Nagarjuna College of Engineering and Technology, Bangalore-562 110 Karnataka (India); Department of Electronics and Communication, Sri Jayachamarajendra College of Engineering, Mysore-570 006, Karnataka (India); Renukappa, N. M. [Department of Electronics and Communication, Sri Jayachamarajendra College of Engineering, Mysore-570 006, Karnataka (India); Siddaramaiah [Department of Polymer Science and Technology, Sri Jayachamarajendra College of Engineering, Mysore-570 006, Karnataka (India); Lee, J. H. [School of Advanced Materials Engineering, Chonbuk National University, Jeonbuk 561 756 (Korea, Republic of); Jeevananda, T. [R and D Centre, Department of Chemistry, R.N.S. Institute of Technology, Bangalore-560 061, Karnataka (India)

2010-10-04T23:59:59.000Z

287

A study of the anodic polarization behavior of Zr(50)Cu(40-x)Al(10)Pd(x) BMG with scanning Auger microanalysis  

SciTech Connect (OSTI)

The anodic-polarization behaviors of Zr50Cu40-XAl10PdX (x = 0 and 7 atomic %) BMGs were investigated in 0.6 M NaCl electrolytes. Initial anodic polarization of both alloys yielded regions where small increases in the applied potential induced significant increases in the current density. Continued polarization of both BMGs resulted in diffusion controlled regimes. However, the limiting diffusion current density of Zr50Cu33Al10Pd7 was higher than that of Zr50Cu40Al10. Scanning Auger microanalysis was used to investigate the oxide formed during polarization and to analyze the chemistry within corrosion pits. The pits formed on both BMGs were enriched with Cu and Cl. Corrosion pits on Zr50Cu33Al10Pd7 were additionally enriched with Pd. A corrosion mechanism relating to the formation of CuCl and Cu2O is proposed based on both the polarization and microanalysis results.

Green, Brandice [ORNL; Meyer III, Harry M [ORNL; Benson, Roberto S [ORNL; Yokoyama, Y [Institute for Materials Research; Liaw, Peter K [University of Tennessee, Knoxville (UTK); Liu, Chain T [ORNL

2008-01-01T23:59:59.000Z

288

Demand Response and Variable Generation Integration Scoping Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Utility Studies Utility Studies LBNL-6248E Peter Cappers, Annika Todd, Charles Goldman June 2013 1 Presentation Overview * Objectives and Approach * Details of CBS Projects * Summary and Conclusions 2 LBNL - Smart Grid Investment Grant Consumer Behavior Study Analysis Background on Smart Grid Investment Grant's Consumer Behavior Studies * The U.S. DOE's Smart Grid Investment Grant (SGIG) program includes projects studying the response of mass market consumers (i.e., residential and small commercial customers) to time-based rate programs * DOE is seeking to apply a consistent study design and analysis framework for these Consumer Behavior Studies (CBS) * The goal is to conduct comparative analysis of the impacts of AMI, time-based rate programs and enabling technologies that

289

Analysis of the behavior of an experimental absorption heat transformer for water purification for different mass flux rates in the generator  

Science Journals Connector (OSTI)

In the present study, first and second laws of thermodynamics have been used to analyse the performance of an experimental absorption heat transformer for water purification. Irreversibilities, coefficients of performance (COP) and exergy coefficients of performance (ECOP) were determined as function of the mass flow of hot water supplied to the generator and as function of the overall thermal specific energy consumption (OSTEC) parameter defined in this paper. The results showed that the system irreversibilities increase meanwhile the coefficients of performance and the exergy coefficient of performance decrease with an increment of the mass flow of hot water supplied to the generator. Also it was shown that the system performance is better when the production of purified water increases due to the increment of the heat recycled to the generator and evaporator.

Armando Huicochea; Wilfrido Rivera; Hiram Martínez; Javier Siqueiros; Erasmo Cadenas

2013-01-01T23:59:59.000Z

290

Improvement of weather analysis in isolated areas of the southern hemisphere by meteorological satellite information: a case study.  

E-Print Network [OSTI]

IMPROVEMENT OF WEATHER ANALYSIS IN ISOLATED AREAS OF THE SOUTHERN HEMISPHERE BY METEOROLOGICAL SATELLITE INFORMATION: A CASE STUDY A Thesis By JOSE ANGEL ALVAREZ Argentine Navy Submitted to the Graduate School of the Agricultural... and Mechanical College of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1963 Major Subject: METEOROLOGY IMPROVEMENT OF WEATHER ANALYSIS IN ISOLATED AREAS OF THE SOUTHERN HEMISPHERE BY METEOROLOGICAL SATELLITE...

Alvarez, Jose? Angel

2012-06-07T23:59:59.000Z

291

Compressed natural gas behavior in a natural gas vehicle fuel tank during fast filling process: Mathematical modeling, thermodynamic analysis, and optimization  

Science Journals Connector (OSTI)

Abstract Every CNG station includes two main parts: a compressor equipped with inter- and after-coolers and a fast filling process (FFP). In this study, both processes were simulated in a FORTRAN based computer program. To model the compression process of real natural gas, the polytropic work of a three-stage compressor was considered. Moreover, the FFP was modeled based on mass conservation and first law of thermodynamics for a non-adiabatic cylinder. Due to high operating pressure, AGA-8 equation of state (EOS) was utilized for accurate computation of necessary thermodynamic properties. Both applied models for compression and FFP were compared with the real data. In particular, the FFP model was evaluated using experimental data obtained from an operating compressed natural gas (CNG) station in Sanandaj, Iran. The comparison showed a good agreement between model and experimental data. In the last part of this paper, the best operating condition for attaining either the minimum energy consumption in compressors and coolers or the maximum final accumulated mass of gas within NGV cylinders was determined using particle swarm optimization (PSO) algorithm.

Mehrdad Khamforoush; Rahil Moosavi; Tahmasb Hatami

2014-01-01T23:59:59.000Z

292

On the feasibility of using emergy analysis as a source of benchmarking criteria through data envelopment analysis: A case study for wind energy  

Science Journals Connector (OSTI)

Abstract The definition of criteria for the benchmarking of similar entities is often a critical issue in analytical studies because of the multiplicity of criteria susceptible to be taken into account. This issue can be aggravated by the need to handle multiple data for multiple facilities. This article presents a methodological framework, named the Em + DEA method, which combines emergy analysis with Data Envelopment Analysis (DEA) for the ecocentric benchmarking of multiple resembling entities (i.e., multiple decision making units or DMUs). Provided that the life-cycle inventories of these \\{DMUs\\} are available, an emergy analysis is performed through the computation of seven different indicators, which refer to the use of fossil, metal, mineral, nuclear, renewable energy, water and land resources. These independent emergy values are then implemented as inputs for DEA computation, thus providing operational emergy-based efficiency scores and, for the inefficient DMUs, target emergy flows (i.e., feasible emergy benchmarks that would turn inefficient \\{DMUs\\} into efficient). The use of the Em + DEA method is exemplified through a case study of wind energy farms. The potential use of CED (cumulative energy demand) and \\{CExD\\} (cumulative exergy demand) indicators as alternative benchmarking criteria to emergy is discussed. The combined use of emergy analysis with DEA is proven to be a valid methodological approach to provide benchmarks oriented towards the optimisation of the life-cycle performance of a set of multiple similar facilities, not being limited to the operational traits of the assessed units.

Diego Iribarren; Ian Vázquez-Rowe; Benedetto Rugani; Enrico Benetto

2014-01-01T23:59:59.000Z

293

Verification of the coupled fluid/solid transfer in a CASL grid-to-rod-fretting simulation : a technical brief on the analysis of convergence behavior and demonstration of software tools for verification.  

SciTech Connect (OSTI)

For a CASL grid-to-rod fretting problem, Sandia's Percept software was used in conjunction with the Sierra Mechanics suite to analyze the convergence behavior of the data transfer from a fluid simulation to a solid mechanics simulation. An analytic function, with properties relatively close to numerically computed fluid approximations, was chosen to represent the pressure solution in the fluid domain. The analytic pressure was interpolated on a sequence of grids on the fluid domain, and transferred onto a separate sequence of grids in the solid domain. The error in the resulting pressure in the solid domain was measured with respect to the analytic pressure. The error in pressure approached zero as both the fluid and solids meshes were refined. The convergence of the transfer algorithm was limited by whether the source grid resolution was the same or finer than the target grid resolution. In addition, using a feature coverage analysis, we found gaps in the solid mechanics code verification test suite directly relevant to the prototype CASL GTRF simulations.

Copps, Kevin D.

2011-12-01T23:59:59.000Z

294

Strategy analysis for the development of a green energy industry: a Taipei case study  

Science Journals Connector (OSTI)

Abstract Taipei, a modern, subtropical, medium-sized city, is distinguished by its high population density, scarce land, and heavy traffic flow. There are also abundant green energy resources in Taipei, which, if fully developed, could generate 13,040 GWh of electricity per year, resulting in a total of 9.37 million tons of carbon dioxide emissions abatement. The development of the green energy industry in this city cannot only bring significant energy-saving and carbon-reducing benefits but also could create significant derivative business opportunities; for example, the total output values of the solar PV and electric vehicle industries could be as high as 700 billion yuan. In this study, we use a SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis and conclude that the top priorities for Taipei's green energy industry development are building energy conservation and electrified transportation, specifically electric vehicles, LED (Light-Emitting Diode) lighting, inverter air conditioning, and \\{ESCOs\\} (Energy Service Company). Taipei is a domestic and international hub for politics, transportation, technology, commerce, and finance. Taipei is very likely to become an internationalized green energy industrial hub, achieving the 3E goals of economic prosperousness, environmental protection, and energy security.

Shyi-Min Lu; Ching Lu

2013-01-01T23:59:59.000Z

295

SAID Partial Wave Analyses from CNS DAC (Center for Nuclear Studies Data Analysis Center)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

George Washington University (GW) has one of the largest university-based nuclear-physics groups in the nation. Many of the current and future projects are geared to Thomas Jefferson National Accelerator Facility (JLab) at Newport News, VA. JLab is the world's premier electron accelerator for nuclear physics, and GW is one of the charter members of the governing body of JLab, the Southeastern Universities Research Association (SURA). The George Washington Data Analysis Center (DAC) was created in 1998 by an agreement among the Department of Energy, Jefferson Lab, and the GW Center for Nuclear Studies.The activities of the DAC fall into four distinct categories: 1) Performing partial-wave analyses of fundamental two- and three-body reactions; 2) Maintenance of databases associated with these reactions; 3) Development of software to disseminate DAC results (as well as the results of competing model-independent analyses and potential approaches); and 4) Phenomenological and theoretical investigations which bridge the gap between theory and experiment; in particular, the extraction of N* and D * hadronic and electromagnetic couplings. Partial Wave Analyses (and the associated databases) available at GW are: Pion-Nucleon, Kaon-Nucleon, Nucleon-Nucleon, Pion Photoproduction, Pion Electroproduction, Kaon Photoproduction, Eta Photoproduction, Eta-Prime Photoproduction, Pion-Deuteron (elastic), and Pion-Deuteron to Proton+Proton. [Taken from http://www.gwu.edu/~ndl/dac.htm">http://www.gwu.edu/~ndl/dac.htm

296

The oxidation of aluminum at high temperature studied by Thermogravimetric Analysis and Differential Scanning Calorimetry.  

SciTech Connect (OSTI)

The oxidation in air of high-purity Al foil was studied as a function of temperature using Thermogravimetric Analysis with Differential Scanning Calorimetry (TGA/DSC). The rate and/or extent of oxidation was found to be a non-linear function of the temperature. Between 650 and 750 %C2%B0C very little oxidation took place; at 850 %C2%B0C oxidation occurred after an induction period, while at 950 %C2%B0C oxidation occurred without an induction period. At oxidation temperatures between 1050 and 1150 %C2%B0C rapid passivation of the surface of the aluminum foil occurred, while at 1250 %C2%B0C and above, an initial rapid mass increase was observed, followed by a more gradual increase in mass. The initial rapid increase was accompanied by a significant exotherm. Cross-sections of oxidized specimens were characterized by scanning electron microscopy (SEM); the observed alumina skin thicknesses correlated qualitatively with the observed mass increases.

Coker, Eric Nicholas

2013-10-01T23:59:59.000Z

297

Application of systems analysis techniques to vulnerability studies of complex installations  

SciTech Connect (OSTI)

Application of reliability and risk analysis methods (particularly fault trees) to failure analysis of systems in hostile manmade environments is discussed. Methods for constructing, analyzing, and interpreting the fault trees, graphs, and diagrams are described. The application of fault-trees, directed graphs, and functional diagrams to problems in sabotage, survivability, and information protection is discussed in general terms. Special problems encountered in this type of analysis are discussed, and future research directions are considered.

Bott, T.F.

1986-01-01T23:59:59.000Z

298

Consumption Behavior in Investment/Consumption Problems  

Science Journals Connector (OSTI)

In this chapter we study the consumption behavior of an agent in the dynamic framework of consumption/investment decision making that allows the presence of a subsistence consumption level and the possibility of ...

E. L. Presman

1997-01-01T23:59:59.000Z

299

Doctoral Defense "CONSTRUCTION WORKERS' ABSENCE BEHAVIOR  

E-Print Network [OSTI]

of the dynamic processes of the emergence and exertion of social controls for worker absence behavior in construction projects. To achieve these goals, five interrelated, interdisciplinary studies using survey

Kamat, Vineet R.

300

The Muzzi marsh: a case study and analysis of wetland restoration decision-making in San Francisco Bay  

E-Print Network [OSTI]

THE MUZZI MARSH: A CASE STUDY AND ANALYSIS OF WETLAND RESTORATION DECISION-MAKING IN SAN FRANCISCO SAY A Thesis by WILLIAM JOSEPH RRAH Subm1tted to the Graduate College of Texas ASM University i n part1 al fulf11 l ment of the requirement... for the degree of MASTER OF SCIENCE May 1982 Major Subject: Management THE NUZ71 NPRSH: A CASF STUDY AND ANALYSIS UF ~WETLAND RESTORATION DECISION-NP, KIN( IN SAN FRANCISCO BAY A Thesis hy blI L LIAM JOSEPH BRAH Approved as to style and content hy: C...

Brah, William Joseph

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Probabilistic timed behavior trees  

Science Journals Connector (OSTI)

The Behavior Tree notation has been developed as a method for systematically and traceably capturing user requirements. In this paper we extend the notation with probabilistic behaviour, so that reliability, performance, and other dependability properties ... Keywords: behavior trees, model checking, probabilities, timed automata

Robert Colvin; Lars Grunske; Kirsten Winter

2007-07-01T23:59:59.000Z

302

An experimental study of the buckling behavior and frictional effects of a circular rod laterally constrained within a horizontal circular cylinder  

E-Print Network [OSTI]

. . 22 22 22 28 31 33 vn TABLE OF CONTENTS (continued) CHAPTER Page 4. 4 Analysis of Lateral Load Applied by Buckled Pipe . 40 V DISCUSSION. VI CONCLUSIONS . 45 49 VII RECOMMENDATIONS . 51 NOMENCLATURE 53 REFERENCES APPENDIX A FIXED END... CONDITIONS. 55 58 APPENDIX B 12 FT. MODEL EXPERIMENTS. 63 APPENDIX C LOAD VARIATION DURING ROD MOVEMENT. . . 70 APPENDIX D PHOTOGRAPHS. 72 VITA 74 LIST OF FIGURES Figure Page 2. 1 Post buckle rod position during the sinusoidal mode. 2. 2 Post buckle...

Williams, Thomas H.

1995-01-01T23:59:59.000Z

303

PREDICTING TEMPERATURE BEHAVIOR IN CARBONATE ACIDIZING TREATMENTS  

E-Print Network [OSTI]

PREDICTING TEMPERATURE BEHAVIOR IN CARBONATE ACIDIZING TREATMENTS A Thesis by XUEHAO TAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 2009 Major Subject: Petroleum Engineering PREDICTING TEMPERATURE BEHAVIOR IN CARBONATE ACIDIZING TREATMENTS A Thesis by XUEHAO TAN Submitted to the Office of Graduate Studies of Texas A&M University...

Tan, Xuehao

2010-01-16T23:59:59.000Z

304

Polaron Behavior in CMR Manganites  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Polaron Behavior in CMR Manganites Print Polaron Behavior in CMR Manganites Print Spintronic devices manipulate electron spin to sense magnetic fields, store information, or perform logical operations. Colossal magnetoresistive (CMR) manganites are a class of materials under study for future spintronic applications such as nonvolatile magnetic computer memory (MRAM). Researchers have recently used several soft x-ray spectroscopies at the ALS to study a prototypical CMR manganite as it was heated past its Curie temperature-the point at which the material ceases to be magnetic. They were able to observe the formation of polarons: electrons whose interaction with the lattice creates a deformation (energy well) that traps the electron, as a pocket on a pool table traps a billiard ball. For the first time, this provided a direct look inside polaron formation in a CMR material, indicating that electron localization as polarons is a defining characteristic of all CMR materials.

305

Polaron Behavior in CMR Manganites  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Polaron Behavior in CMR Manganites Print Polaron Behavior in CMR Manganites Print Spintronic devices manipulate electron spin to sense magnetic fields, store information, or perform logical operations. Colossal magnetoresistive (CMR) manganites are a class of materials under study for future spintronic applications such as nonvolatile magnetic computer memory (MRAM). Researchers have recently used several soft x-ray spectroscopies at the ALS to study a prototypical CMR manganite as it was heated past its Curie temperature-the point at which the material ceases to be magnetic. They were able to observe the formation of polarons: electrons whose interaction with the lattice creates a deformation (energy well) that traps the electron, as a pocket on a pool table traps a billiard ball. For the first time, this provided a direct look inside polaron formation in a CMR material, indicating that electron localization as polarons is a defining characteristic of all CMR materials.

306

An Isogeometric Analysis approach for the study of the gyrokinetic quasi-neutrality equation  

Science Journals Connector (OSTI)

In this work, a new discretization scheme for the gyrokinetic quasi-neutrality equation is proposed. It is based on Isogeometric Analysis; the IGA which relies on NURBS functions, accommodates arbitrary coordinates and the use of complicated computation ... Keywords: Gyrokinetic quasi-neutrality equation, Isogeometric Analysis, NURBS, Numerical simulations

Nicolas Crouseilles; Ahmed Ratnani; Eric Sonnendrücker

2012-01-01T23:59:59.000Z

307

A Study of Type Analysis for Speculative Method Inlining in a JIT Environment  

E-Print Network [OSTI]

environment. To overcome the memory overhead of dynamic whole-program analysis, we outlined the design line code to access a #12;eld, return a hash value, or invoke another method. Design patterns [?] use of monomorphic interface calls. We measured the runtime overhead of in- terprocedural type analysis in the JIT

308

A Study of Unbalanced Morphological Understanding: Morphological Land Use Patterns Analysis of U.S. Megaregions  

E-Print Network [OSTI]

scattering index, and spatial clustering index. Local scale spatial patterns were examined with the Getis-Ord Gi* hot spots analysis and the Anselin Local Moran’s I cluster and outlier analysis. In order to represent the megaregion-scale urban built...

Ko, Youngho

2012-07-16T23:59:59.000Z

309

TravInfo Evaluation (Technology Element) Traveler Information Center (TIC) Study: Operator Response Time Analysis  

E-Print Network [OSTI]

Traveler Information Center (TIC) Study Operator Inte$aceTraveler Information Center (TIC) Study Operator ZnterjizceInformation Center (TIC) Study (Technology Evaluation

Miller, Mark A.; Loukakos, Dimitri

2000-01-01T23:59:59.000Z

310

Does Musical Behavior Promote Affiliation?  

E-Print Network [OSTI]

by CINDY KAY HARMON-JONES Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Co-Chairs of Committee, Brandon Schmeichel Gerianne....S., Excelsior College; M.S., Texas A&M University Co-Chairs of Advisory Committee: Dr. Brandon Schmeichel Dr. Gerianne Alexander Past research suggested that greater rhythmic complexity in musical behavior increases affiliation in small groups...

Harmon-Jones, Cindy Kay

2012-10-19T23:59:59.000Z

311

Photoelectron Spectroscopy and Theoretical Study of M(IO3)2– (M = H, Li, Na, K): Structural Evolution, Optical Isomers and Hyperhalogen Behavior  

SciTech Connect (OSTI)

H(IO3)2- and M(IO3)2- (M = Li, Na, K) anions were successfully produced via electrospray ionization of their corresponding bulk salt solutions, and were characterized by combining negative ion photoelectron spectroscopy and quantum chemical calculations. The photoelectron spectra reveal that all these M(IO3)2- species possess very high vertical detachment energies (VDEs), to be 6.25, 6.57, 6.60 and 6.51 eV for H(IO3)2-, Li(IO3)2-, Na(IO3)2- and K(IO3)2-, respectively, which are much higher than that of IO3- (4.77 eV). The theoretical calculations show that each of these anions has two energetically degenerated optical isomers. It is found that the structure of H(IO3)2- can be written as IO3-(HIO3), in which the H atom is tightly bound to one of the IO3- groups and forms an iodic acid (HIO3) molecule; while the structures of M(IO3)2- can be written as (IO3-)M+(IO3-), in which the alkali metal atoms interact with the two IO3- groups almost equally and bridge the two IO3- groups via two O atoms of each IO3- with the two MOOI planes nearly perpendicular to each other. In addition, the high VDEs of M(IO3)2- (M = Li, Na, K) can be explained by the hyperhalogen behavior of their neutral counterparts.

Hou, Gao-Lei; Wu, Miao Miao; Wen, Hui; Sun, Qiang N.; Wang, Xue B.; Zheng, Weijun

2013-07-31T23:59:59.000Z

312

A meta-analysis of single case research studies on aided augmentative and alternative communication systems with individuals with autism spectrum disorders  

E-Print Network [OSTI]

behavioral outcomes, summary of the results, and overall quality of the research. The teaching method implemented included three categories. Child-led involved Running Head: META-ANALYSIS OF AAC 11 instruction that began only when the child initiated... generally fit the criteria for child-led, however, instruction took place during natural activities (e.g., free play, snack time); the adult did not strictly control access to the stimuli. Teacher-led involved one-on-one instruction in a contrived...

Ganz, Jennifer B.; Earles-Vollrath, Theresa L.; Heath, Amy K.; Parker, Richard; Rispoli, Mandy J.; Duran, Jaime

2012-01-01T23:59:59.000Z

313

Classification of behavior using vocalizations of Pacific white-sided dolphins (Lagenorhynchus obliquidens)a)  

Science Journals Connector (OSTI)

Surface behavior and concurrent underwater vocalizations were recorded for Pacific white-sided dolphins in the Southern California Bight (SCB) over multiple field seasons spanning 3 years. Clicks click trains and pulsed calls were counted and classified based on acoustic measurements leading to the identification of 19 key call features used for analysis. Kruskal-Wallis tests indicated that call features differ significantly across behavioral categories. Previous work had discovered two distinctive click Types (A and B) which may correspond to known subpopulations of Pacific white-side dolphins in the Southern California Bight; this study revealed that animals producing these different click types also differ in both their behavior and vocalizationpatterns. Click Type A groups were predominantly observed slow traveling and milling with little daytime foraging while click Type B groups were observed traveling and foraging. These behavioral differences may be characteristic of niche partitioning by overlapping populations; coupled with differences in vocalizationpatterns they may signify that these subpopulations are cryptic species. Finally random forest decision trees were used to classify behavior based on vocalization data with rates of correct classification up to 86% demonstrating the potential for the use of vocalizationpatterns to predict behavior.

E. Elizabeth Henderson; John A. Hildebrand; Michael H. Smith

2011-01-01T23:59:59.000Z

314

Intertemporal Consumption and Savings Behavior: Neoclassical, Behavioral, and Neuroeconomic Approaches  

E-Print Network [OSTI]

Intertemporal Consumption and Savings Behavior: Neoclassical, Behavioral, and Neuroeconomic models of intertemporal consumption and savings behavior. I summarize the construction and implications of Modigliani & Brumberg's Life-Cycle Hypothesis [4] and Laibson's quasi-hyperbolic consumption function [8

Morrow, James A.

315

New Research on Jamming Behavior Expands Understanding  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Research on Jamming Behavior New Research on Jamming Behavior Expands Understanding New Research on Jamming Behavior Expands Understanding Print Tuesday, 22 October 2013 00:00 Summary Slide One of the most satisfying aspects of condensed matter physics is that a variety of condensed matter systems show universal behavior-behavior that appears to be common to a wide variety of unrelated systems. The phenomenon of "jamming," which is similar to what happens to vehicles in traffic jams, fits into this category. Recent ALS research has revealed that even magnetic domains behave very much like other granular material systems, and their dynamical behavior mimics the universal characteristics of several jammed systems. Jamming Transitions Give Insight into Behaviors Recently, there has been much interest in jamming transitions, which were originally studied as a way to discuss the behavior of granular materials or dense assemblies of particles but have been eventually proposed as a more general and unified way of looking at dynamics of systems as diverse as structural glasses, entangled polymers, colloidal gels, supercooled liquids, and the like. Jamming is the physical process by which some materials become rigid with increasing density. Jamming occurs when the particle densities or entanglements are such that the motions of the individual particles become very restricted so that they slow down. The fluctuations that occur in a jammed system with long-range interactions are cooperative fluctuations where a local displacement causes an inhomogeneity, which is correlated with a displacement in another region.

316

The Complex Network Analysis of Power Grid: A Case Study of the West Bengal Power Network  

Science Journals Connector (OSTI)

Complex network analysis is a new multidisciplinary approach to characterize the structure and function of power grid as a complex network to establish the ... blackouts. In this article, we model the power grid ...

Himansu Das; Gouri Sankar Panda…

2014-01-01T23:59:59.000Z

317

Applying Decline Curve Analysis in the Liquid-rich Shales: Eagle Ford Shale Study  

E-Print Network [OSTI]

of data from unconventional oil wells flowing under unstable operating conditions. Fetkovich (hydraulically fractured well) type curve analysis can be added to improve confidence in flow regime identification from diagnostic plots and to estimate the Arps...

Indras, Purvi

2014-01-09T23:59:59.000Z

318

Preliminary Study on Reliability Analysis of Safety I&C System in NPP  

Science Journals Connector (OSTI)

Digital instrumentation and control (I&C) systems, such as digital Reactor Protection System (RPS), are being employed ... upgraded Nuclear Power Plants (NPPs). The reliability analysis of digital I&C system turn...

Chao Guo; Duo Li; Huasheng Xiong

2012-01-01T23:59:59.000Z

319

Financial Analysis of Incentive Mechanisms to Promote Energy Efficiency: Case Study of a Prototypical Southwest Utility  

SciTech Connect (OSTI)

Many state regulatory commissions and policymakers want utilities to aggressively pursue energy efficiency as a strategy to mitigate demand and energy growth, diversify the resource mix, and provide an alternative to building new, costly generation. However, as the National Action Plan for Energy Efficiency (NAPEE 2007) points out, many utilities continue to shy away from aggressively expanding their energy efficiency efforts when their shareholder's fundamental financial interests are placed at risk by doing so. Thus, there is increased interest in developing effective ratemaking and policy approaches that address utility disincentives to pursue energy efficiency or lack of incentives for more aggressive energy efficiency efforts. New regulatory initiatives to promote increased utility energy efficiency efforts also affect the interests of consumers. Ratepayers and their advocates are concerned with issues of fairness, impacts on rates, and total consumer costs. From the perspective of energy efficiency advocates, the quid pro quo for utility shareholder incentives is the obligation to acquire all, or nearly all, achievable cost-effective energy efficiency. A key issue for state regulators and policymakers is how to maximize the cost-effective energy efficiency savings attained while achieving an equitable sharing of benefits, costs and risks among the various stakeholders. In this study, we modeled a prototypical vertically-integrated electric investor-owned utility in the southwestern US that is considering implementing several energy efficiency portfolios. We analyze the impact of these energy efficiency portfolios on utility shareholders and ratepayers as well as the incremental effect on each party when lost fixed cost recovery and/or utility shareholder incentive mechanisms are implemented. A primary goal of our quantitative modeling is to provide regulators and policymakers with an analytic framework and tools that assess the financial impacts of alternative incentive approaches on utility shareholders and customers if energy efficiency is implemented under various utility operating, cost, and supply conditions.We used and adapted a spreadsheet-based financial model (the Benefits Calculator) which was developed originally as a tool to support the National Action Plan for Energy Efficiency (NAPEE). The major steps in our analysis are displayed graphically in Figure ES- 1. Two main inputs are required: (1) characterization of the utility which includes its initial financial and physical market position, a forecast of the utility?s future sales, peak demand, and resource strategy to meet projected growth; and (2) characterization of the Demand-Side Resource (DSR) portfolio ? projected electricity and demand savings, costs and economic lifetime of a portfolio of energy efficiency (and/or demand response) programs that the utility is planning or considering implementing during the analysis period. The Benefits Calculator also estimates total resource costs and benefits of the DSR portfolio using a forecast of avoided capacity and energy costs. The Benefits Calculator then uses inputs provided in the Utility Characterization to produce a ?business-as usual? base case as well as alternative scenarios that include energy efficiency resources, including the corresponding utility financial budgets required in each case. If a decoupling and/or a shareholder incentive mechanism are instituted, the Benefits Calculator model readjusts the utility?s revenue requirement and retail rates accordingly. Finally, for each scenario, the Benefits Calculator produces several metrics that provides insights on how energy efficiency resources, decoupling and/or a shareholder incentive mechanism impacts utility shareholders (e.g. overall earnings, return on equity), ratepayers (e.g., average customer bills and rates) and society (e.g. net resource benefits).

Cappers, Peter; Goldman, Charles; Chait, Michele; Edgar, George; Schlegel, Jeff; Shirley, Wayne

2009-03-04T23:59:59.000Z

320

Exploring Nonlinear Behavior  

Science Journals Connector (OSTI)

The point at which modeling gets particularly interesting is when model behavior becomes increasingly nonlinear. It is no coincidence that this is the point where simulation tools start having trouble. Nonline...

Michael Tiller Ph.D.

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Aquifer behavior with reinjection  

E-Print Network [OSTI]

AQUIFER BEHAVIOR WITH REINJECTION A Thesis By EUCLIDES JOSE BONET Submitted to the Graduate College of the Texas ARUM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May, f967 Major Subject... Petroleum Engineering AQUIFER BEHAVIOR WITH REINJECTION A Thesis By E UC LI DES JOSE BONE T Approved as to style and content by: (Chairman of Committee) (Member) (Member) May, 1967 ACKNOWLEDGMENT Thanks are due to Petroleo Brasilerio S...

Bonet, Euclides Jose

1967-01-01T23:59:59.000Z

322

Mechanical Behavior of Indium Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mechanical Behavior of Indium Nanostructures Print Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended ductility, and high electrical conductivity. With the size of electronic devices continuing to shrink and the promise of indium-based nanotechnologies, it is important to develop a fundamental understanding of this material's small-scale mechanical properties and reliability. Researchers from the University of Waterloo, California Institute of Technology, and Los Alamos National Laboratory have collaborated with a team at ALS Beamline 12.3.2 to investigate the small-scale mechanics of indium nanostructures. Scanning x-ray microdiffraction (μSXRD) studies revealed that the indium microstructure is typical of a well-annealed metal, containing very few initial dislocations and showing close-to-theoretical strength.

323

Mechanical Behavior of Indium Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mechanical Behavior of Indium Nanostructures Print Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended ductility, and high electrical conductivity. With the size of electronic devices continuing to shrink and the promise of indium-based nanotechnologies, it is important to develop a fundamental understanding of this material's small-scale mechanical properties and reliability. Researchers from the University of Waterloo, California Institute of Technology, and Los Alamos National Laboratory have collaborated with a team at ALS Beamline 12.3.2 to investigate the small-scale mechanics of indium nanostructures. Scanning x-ray microdiffraction (μSXRD) studies revealed that the indium microstructure is typical of a well-annealed metal, containing very few initial dislocations and showing close-to-theoretical strength.

324

Mechanical Behavior of Indium Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mechanical Behavior of Indium Nanostructures Print Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended ductility, and high electrical conductivity. With the size of electronic devices continuing to shrink and the promise of indium-based nanotechnologies, it is important to develop a fundamental understanding of this material's small-scale mechanical properties and reliability. Researchers from the University of Waterloo, California Institute of Technology, and Los Alamos National Laboratory have collaborated with a team at ALS Beamline 12.3.2 to investigate the small-scale mechanics of indium nanostructures. Scanning x-ray microdiffraction (μSXRD) studies revealed that the indium microstructure is typical of a well-annealed metal, containing very few initial dislocations and showing close-to-theoretical strength.

325

Model of sludge behavior in nuclear plant steam generators. Final report  

SciTech Connect (OSTI)

The accumulation of large amounts of sludge in pressurized water reactor steam generators is thought to be a cause of accelerated corrosion by trace impurities which concentrate in such deposits. Based on fundamental principles, this study develops a mathematical model for predicting the behavior (e.g., deposition and reentrainment) of sludge in steam generators. The calculated sludge behavior shows good agreement with the limited amount of experimental data available. The results suggest that the continued accumulation of sludge on the tubesheet might be preventable, and that if it could be, the incoming sludge would be removed by blowdown. An analysis of the uncertainties in the model led to suggested priorities for further analytical and experimental work to gain a better understanding of sludge behavior. 29 refs., 12 figs., 15 tabs.

Beal, S.K.; Chen, J.H.

1986-06-01T23:59:59.000Z

326

Behavior Based Energy Efficiency (BBEE)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Behavior Based Energy Efficiency Program Profiles 2011 Introduction Behavior based energy efficiency (BBEE) programs focus on energy savings resulting from changes in individual or...

327

Mechanical Behavior of Indium Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mechanical Behavior of Indium Nanostructures Mechanical Behavior of Indium Nanostructures Print Wednesday, 26 May 2010 00:00 Indium is a key material in lead-free solder...

328

A technical framework to describe occupant behavior for building energy simulations  

SciTech Connect (OSTI)

Green buildings that fail to meet expected design performance criteria indicate that technology alone does not guarantee high performance. Human influences are quite often simplified and ignored in the design, construction, and operation of buildings. Energy-conscious human behavior has been demonstrated to be a significant positive factor for improving the indoor environment while reducing the energy use of buildings. In our study we developed a new technical framework to describe energy-related human behavior in buildings. The energy-related behavior includes accounting for individuals and groups of occupants and their interactions with building energy services systems, appliances and facilities. The technical framework consists of four key components: i. the drivers behind energy-related occupant behavior, which are biological, societal, environmental, physical, and economical in nature ii. the needs of the occupants are based on satisfying criteria that are either physical (e.g. thermal, visual and acoustic comfort) or non-physical (e.g. entertainment, privacy, and social reward) iii. the actions that building occupants perform when their needs are not fulfilled iv. the systems with which an occupant can interact to satisfy their needs The technical framework aims to provide a standardized description of a complete set of human energy-related behaviors in the form of an XML schema. For each type of behavior (e.g., occupants opening/closing windows, switching on/off lights etc.) we identify a set of common behaviors based on a literature review, survey data, and our own field study and analysis. Stochastic models are adopted or developed for each type of behavior to enable the evaluation of the impact of human behavior on energy use in buildings, during either the design or operation phase. We will also demonstrate the use of the technical framework in assessing the impact of occupancy behavior on energy saving technologies. The technical framework presented is part of our human behavior research, a 5-year program under the U.S. - China Clean Energy Research Center for Building Energy Efficiency.

Turner , William; Hong , Tianzhen

2013-12-20T23:59:59.000Z

329

Requirements Analysis Study for Master Pump Shutdown System Project Development Specification [SEC 1 and 2  

SciTech Connect (OSTI)

This document has been updated during the definitive design portion of the first phase of the W-314 Project to capture additional software requirements and is planned to be updated during the second phase of the W-314 Project to cover the second phase of the Project's scope. The objective is to provide requirement traceability by recording the analysis/basis for the functional descriptions of the master pump shutdown system. This document identifies the sources of the requirements and/or how these were derived. Each requirement is validated either by quoting the source or an analysis process involving the required functionality, performance characteristics, operations input or engineering judgment.

BEVINS, R.R.

2000-03-24T23:59:59.000Z

330

Automated home-cage behavioral phenotyping of mice  

E-Print Network [OSTI]

We describe a trainable computer vision system enabling the automated analysis of complex mouse behaviors. We provide software and a very large manually annotated video database used for training and testing the system. ...

Yu, Xinlin

2009-10-26T23:59:59.000Z

331

Trainable, vision-based automated home cage behavioral phenotyping  

E-Print Network [OSTI]

We describe a fully trainable computer vision system enabling the automated analysis of complex mouse behaviors. Our system computes a sequence of feature descriptors for each video sequence and a classifier is used to ...

Jhuang, Hueihan

332

A Transformation Approach for Modeling and Analysis of Complex UML Statecharts: A Case Study  

E-Print Network [OSTI]

transformation Petri nets model analysis 1.0 Introduction The Object Management Group (OMG) adopted a new. Entry transition. The basic form of the intermediate model for entry transitions of a composite state is a fork transition as shown in Fig. 1. A fork transition has one source state and multiple target states

Shatz, Sol M.

333

Climate Change Impacts and Adaptation Analysis How to Link Physical Climate Data and Economic Studies  

E-Print Network [OSTI]

Climate Change Impacts and Adaptation Analysis ­ How to Link Physical Climate Data and Economic There are a number of structural and conceptual differences between the information provided by climate change models of economic concepts applied to climate change impact and adaptation policy assessment, and to illustrate how

334

Study on intelligent contract information configuration and analysis by case-based reasoning  

Science Journals Connector (OSTI)

This paper presents an intelligent contract analysis and processing method, which can process a mass of contract information to meet the various demands of the enterprises. Here contracts are properly decomposed and configured according to their important ... Keywords: case-based reasoning (CBR), contract intelligent configuration, contract intelligent processing, data mining, knowledge database

Yi Sun; Jianrong Tan; Yalang Mao; Ming Lou

2006-04-01T23:59:59.000Z

335

Image Analysis of Defocused Single-Molecule Images for Three-Dimensional Molecule Orientation Studies  

E-Print Network [OSTI]

Image Analysis of Defocused Single-Molecule Images for Three-Dimensional Molecule Orientation applied to determine three- dimensional molecule orientations in defocused single-molecule images. The developed algorithm exploits the excellent agreement between electrodynamic calculations of single-molecule

Enderlein, Jörg

336

Independent surrogate variable analysis to deconvolve confounding factors in large-scale microarray profiling studies  

Science Journals Connector (OSTI)

......Batzoglou, 2003; Liebermeister, 2002; Martoglio et al., 2002; Saidi et al., 2004; Teschendorff et al., 2007; Zhang et al...bivalent chromatin domains. Genome Res. (2010) 20:434-439. Saidi S.A. , et al. Independent component analysis of microarray......

Andrew E. Teschendorff; Joanna Zhuang; Martin Widschwendter

2011-06-01T23:59:59.000Z

337

Analysis of Catania Flash Flood Case Study by Using Combined Microwave and Infrared Technique  

Science Journals Connector (OSTI)

In this paper, the analysis of an extreme convective event atypical for the winter season, which occurred on 21 February 2013 on the east coast of Sicily and caused a flash flood over Catania, is presented. In just 1 h, more than 50 mm of ...

Francesco Di Paola; Elisabetta Ricciardelli; Domenico Cimini; Filomena Romano; Mariassunta Viggiano; Vincenzo Cuomo

2014-10-01T23:59:59.000Z

338

Strategic analysis of energy efficiency projects: Case study of a steel mill in Manitoba  

Science Journals Connector (OSTI)

Abstract An analysis of energy efficiency opportunities at a steel mill were undertaken using two energy modeling tools, the \\{RETScreen\\} Clean Energy Project Analysis Software (RETScreen) and the Process Heat Assessment and Survey Tool (PHAST). A number of energy efficiency opportunities were found to be feasible in this analysis at Gerdau North America Long Steel-Manitoba Mill. The waste heat recovery opportunities included: (1) preheating combustion air in the ladle preheater, with an estimated energy savings of 22,000 GJ/yr and a payback period of 10 months; and, (2) preheating billets with an estimated energy savings of 60,323 GJ/yr and a payback period of three years. Changing natural gas space heaters to more energy efficient and safer models was both socially and economically beneficial, although having a longer payback period of 4.5 years. Oxy-fuel combustion was not deemed feasible as oxygen costs negated any natural gas savings and the productivity gains were not considered applicable. The strategic analysis showed that environmental, economic and productivity benefits were larger than the smaller concerns of: production interruption, the economic barriers of capital costs, as well as the risks posed by a downturn in the economy or by outsourcing.

Shirley Thompson; Minxing Si

2014-01-01T23:59:59.000Z

339

Synthesis of solid solution Er{sub 2-x}Ce{sub x}W{sub 3}O{sub 12} and studies of their thermal expansion behavior.  

SciTech Connect (OSTI)

The syntheses and structures of Er{sub 2-x}Ce{sub x}W{sub 3}O{sub 12} were studied. It was found that pure phases could form only for 0.0 {le} x {le} 0.4 and 1.5 {le} x {le} 2.0. Compounds with 0 {le} x {le} 0.4 have the hydrated orthorhombic structure at room temperature and transform to unhydrated orthorhombic one above 135 C whereas samples with 1.5 {le} x {le} 2.0 crystallize in monoclinic structure. Thermal expansion properties of Er{sub 2-x}Ce{sub x}W{sub 3}O{sub 12} were studied with high temperature X-ray powder diffraction. Samples with 0 {le} x {le} 0.4 exhibit negative thermal expansion in temperature range of 200-800 C and higher cerium content leads to more negative thermal expansion coefficient. However, compounds with 1.5 {le} x {le} 2.0 show positive thermal expansion owing to the edge-sharing polyhedra.

Wu, M. M.; Cheng, Y. Z.; Peng, J.; Xiao, X. L.; Chen, D. F.; Kiyanagi, R.; Fieramosca, J. S.; Short, S.; Jorgensen, J.; Hu, Z. B.; Graduate Univ. Chinese Academy of Sciences; China Inst. of Atomic Energy

2007-01-30T23:59:59.000Z

340

New Research on Jamming Behavior Expands Understanding  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Research on Jamming Behavior Expands Understanding Print New Research on Jamming Behavior Expands Understanding Print Summary Slide One of the most satisfying aspects of condensed matter physics is that a variety of condensed matter systems show universal behavior-behavior that appears to be common to a wide variety of unrelated systems. The phenomenon of "jamming," which is similar to what happens to vehicles in traffic jams, fits into this category. Recent ALS research has revealed that even magnetic domains behave very much like other granular material systems, and their dynamical behavior mimics the universal characteristics of several jammed systems. Jamming Transitions Give Insight into Behaviors Recently, there has been much interest in jamming transitions, which were originally studied as a way to discuss the behavior of granular materials or dense assemblies of particles but have been eventually proposed as a more general and unified way of looking at dynamics of systems as diverse as structural glasses, entangled polymers, colloidal gels, supercooled liquids, and the like. Jamming is the physical process by which some materials become rigid with increasing density. Jamming occurs when the particle densities or entanglements are such that the motions of the individual particles become very restricted so that they slow down. The fluctuations that occur in a jammed system with long-range interactions are cooperative fluctuations where a local displacement causes an inhomogeneity, which is correlated with a displacement in another region.

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

New Research on Jamming Behavior Expands Understanding  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Research on Jamming Behavior Expands Understanding Print New Research on Jamming Behavior Expands Understanding Print Summary Slide One of the most satisfying aspects of condensed matter physics is that a variety of condensed matter systems show universal behavior-behavior that appears to be common to a wide variety of unrelated systems. The phenomenon of "jamming," which is similar to what happens to vehicles in traffic jams, fits into this category. Recent ALS research has revealed that even magnetic domains behave very much like other granular material systems, and their dynamical behavior mimics the universal characteristics of several jammed systems. Jamming Transitions Give Insight into Behaviors Recently, there has been much interest in jamming transitions, which were originally studied as a way to discuss the behavior of granular materials or dense assemblies of particles but have been eventually proposed as a more general and unified way of looking at dynamics of systems as diverse as structural glasses, entangled polymers, colloidal gels, supercooled liquids, and the like. Jamming is the physical process by which some materials become rigid with increasing density. Jamming occurs when the particle densities or entanglements are such that the motions of the individual particles become very restricted so that they slow down. The fluctuations that occur in a jammed system with long-range interactions are cooperative fluctuations where a local displacement causes an inhomogeneity, which is correlated with a displacement in another region.

342

New Research on Jamming Behavior Expands Understanding  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Research on Jamming Behavior Expands Understanding Print New Research on Jamming Behavior Expands Understanding Print Summary Slide One of the most satisfying aspects of condensed matter physics is that a variety of condensed matter systems show universal behavior-behavior that appears to be common to a wide variety of unrelated systems. The phenomenon of "jamming," which is similar to what happens to vehicles in traffic jams, fits into this category. Recent ALS research has revealed that even magnetic domains behave very much like other granular material systems, and their dynamical behavior mimics the universal characteristics of several jammed systems. Jamming Transitions Give Insight into Behaviors Recently, there has been much interest in jamming transitions, which were originally studied as a way to discuss the behavior of granular materials or dense assemblies of particles but have been eventually proposed as a more general and unified way of looking at dynamics of systems as diverse as structural glasses, entangled polymers, colloidal gels, supercooled liquids, and the like. Jamming is the physical process by which some materials become rigid with increasing density. Jamming occurs when the particle densities or entanglements are such that the motions of the individual particles become very restricted so that they slow down. The fluctuations that occur in a jammed system with long-range interactions are cooperative fluctuations where a local displacement causes an inhomogeneity, which is correlated with a displacement in another region.

343

Thermogravimetric analysis and differential scanning calorimetric studies on nanoclay-filled TPU/PP blends  

Science Journals Connector (OSTI)

Thermal stability of ester-thermoplastic polyurethane (TPU)/polypropylene (PP) and ether-TPU/PP blends was evaluated by thermogravimetric studies. Thermal studies were made as a function of blend ratio. Effect...

Murugasamy Kannan; S. S. Bhagawan…

2013-06-01T23:59:59.000Z

344

Captive propagation and brood behavior of greater prairie chickens  

E-Print Network [OSTI]

the Kruskal-Wallis 1-way analysis of variance statistical test (Siegel 1956) to determine if there were differences in the behavioral categories among the brood groups. If a significant difference was found, a Kruskal-Wallis multiple comparisons test... the Kruskal-Wallis 1-way analysis of variance statistical test (Siegel 1956) to determine if there were differences in the behavioral categories among the brood groups. If a significant difference was found, a Kruskal-Wallis multiple comparisons test...

Drake, David

2012-06-07T23:59:59.000Z

345

A methodical study of reliability analysis of the crude oil unit in processing heavy oil  

Science Journals Connector (OSTI)

This paper presents a novel approach to analyse the safety and reliability issues on the crude oil unit in processing heavy oil. Based on the discussions of the corrosion mechanism, it uses fault tree analysis to identify the key factors that may lead to failure of crude oil unit when processing heavy oil. It has found that factors such as temperature, consistence, relatively move speed and material, critically affect the corrosion rate of the naphthenic acid. In order to explore the relationships between the identified factors and the corrosion rate of the naphthenic acid, this paper uses artificial neural networks to identify such normally non-linear relationships. Laboratory experiments have been conducted to collect data of the corrosion rate using different materials in different temperatures, consistence and velocity. The analyses show that the proposed research method is sound and can be used in safety and reliability analysis of crude oil unit in processing heavy oil.

Qingyou Liu; Guorong Wang; Yan Yang

2009-01-01T23:59:59.000Z

346

Stability analysis of polarized domains Jose A. Miranda and Michael Widom  

E-Print Network [OSTI]

, lipid monolayers, and magnetic bubbles form domains with deformable boundaries. Stability analysis results on the asymptotic behavior of the integral In(x) in his study of magnetic bubble stabilityStability analysis of polarized domains Jose´ A. Miranda and Michael Widom Department of Physics

Widom, Michael

347

Fermilab Central Computing Facility: Energy conservation report and mechanical systems design optimization and cost analysis study  

SciTech Connect (OSTI)

This report is developed as part of the Fermilab Central Computing Facility Project Title II Design Documentation Update under the provisions of DOE Document 6430.1, Chapter XIII-21, Section 14, paragraph a. As such, it concentrates primarily on HVAC mechanical systems design optimization and cost analysis and should be considered as a supplement to the Title I Design Report date March 1986 wherein energy related issues are discussed pertaining to building envelope and orientation as well as electrical systems design.

Krstulovich, S.F.

1986-11-12T23:59:59.000Z

348

An Inverse Finite Element Analysis and A Parametric Study of Small Punch Tests  

E-Print Network [OSTI]

-displacement curve of 40CrNi2Mo alloy steel (Guan et al., 2011) ....... 21 Fig. 2.8 Estimate of the first step displacement ........................................................... 22 Fig. 2.9 FE simulation results with ? = 800 MPa at ? = 0...-strain curve of 40CrNi2Mo alloy steel from the inverse FE x analysis of the SPT ......................................................................................... 28 Fig. 2.18 1.25Cr0.5Mo alloy steel elastic modulus and yield...

Xu, Zhenzhen

2012-02-14T23:59:59.000Z

349

The analysis of triglyceride-rich lipoproteins in human serum for clinical studies  

E-Print Network [OSTI]

CHAPTER II MATERIALS AND METHODS????????????... 31 Materials?????????????????????????. 31 Method 1. Remnant Lipoprotein Density Profiling????????? 33 Method 2. Separation of bTRL and dTRL????????????. 37 Method 3. Apolipoprotein Analysis... 1 Differential lipoprotein characteristics??.????...???.? 5 2 Compositional characteristics of the TRL class (CM or chylomicrons and VLDL) in comparison with LDL and HDL??.. 6 3 Percentage of RLP at TRL and IDL densities for fasting...

Chandra, Richa

2009-06-02T23:59:59.000Z

350

Laboratory feasibility study of fusion vessel inner wall chemical analysis by Laser Induced Breakdown Spectroscopy  

Science Journals Connector (OSTI)

Laser Induced Breakdown Spectroscopy (LIBS) is nowadays a well established tool for qualitative, semi-quantitative and quantitative analyses of surfaces, with micro-destructive characteristics and capabilities for stratigraphy. LIBS is an appealing technique compared with many other types of elemental analysis thanks to the set up versatility facilitating non-invasive and remote analyses, as well as suitability to diagnostics in harsh environments. In this work, LIBS capabilities were used for the determination of the atomic composition of multilayered samples simulating the tiles of plasma facing components in the next generation fusion machines such as ITER. A new experimental setup was designed and realized in order to optimize the characteristics of an LIBS system working at low pressure and remotely, as it should be for an in situ system to be applied in monitoring the erosion and redeposition phenomena occurring on the inner walls of a fusion device. The effects of time delay and laser fluence on LIBS sensitivity at reduced pressure were examined, looking for operational conditions suitable to analytical applications. The quantitative analysis of some atomic species in the superficial layer has been carried out using a Calibration Free (CF) approach in the time window where Local Thermal Equilibrium (LTE) was assumed for an LIBS analysis.

Salvatore Almaviva; Luisa Caneve; Francesco Colao; Roberta Fantoni; Giorgio Maddaluno

2012-01-01T23:59:59.000Z

351

Natural Tracers and Multi-Scale Assessment of Caprock Sealing Behavior: A Case Study of the Kirtland Formation, San Juan Basin  

SciTech Connect (OSTI)

The assessment of caprocks for geologic CO{sub 2} storage is a multi-scale endeavor. Investigation of a regional caprock - the Kirtland Formation, San Juan Basin, USA - at the pore-network scale indicates high capillary sealing capacity and low permeabilities. Core and wellscale data, however, indicate a potential seal bypass system as evidenced by multiple mineralized fractures and methane gas saturations within the caprock. Our interpretation of {sup 4}He concentrations, measured at the top and bottom of the caprock, suggests low fluid fluxes through the caprock: (1) Of the total {sup 4}He produced in situ (i.e., at the locations of sampling) by uranium and thorium decay since deposition of the Kirtland Formation, a large portion still resides in the pore fluids. (2) Simple advection-only and advection-diffusion models, using the measured {sup 4}He concentrations, indicate low permeability ({approx}10-20 m{sup 2} or lower) for the thickness of the Kirtland Formation. These findings, however, do not guarantee the lack of a large-scale bypass system. The measured data, located near the boundary conditions of the models (i.e., the overlying and underlying aquifers), limit our testing of conceptual models and the sensitivity of model parameterization. Thus, we suggest approaches for future studies to better assess the presence or lack of a seal bypass system at this particular site and for other sites in general.

Jason Heath; Brian McPherson; Thomas Dewers

2011-03-15T23:59:59.000Z

352

Infrared study of the behavior of CO, NO, and CO + NO over Rh/Al/sub 2/O/sub 3/ catalysts  

SciTech Connect (OSTI)

Infrared spectroscopy was used to study the interaction of carbon monoxide and nitric oxide on a 0.475% Rh/Al/sub 2/O/sub 3/ catalyst. Both CO and NO readily adsorb on a prereduced catalyst surface. NO is not observed spectroscopically on preoxidized catalysts, yet isocyanate is produced during subsequent displacement by CO. The adsorption of CO on a preoxidized catalyst parallels the reduction of the catalyst. At temperatures in excess of 250/sup 0/C and mixed feeds with CO/NO greater than or equal to 1, a large buildup of isocyanate is observed on the support. At temperatures greater than 300/sup 0/C an infrared band attributed to adsorbed cyanide ion is observed near 2150 cm/sup -1/. Experiments involving displacement of NO by CO, displacement of CO by NO, and coadsorption of CO + NO show that contiguous rhodium surfaces are necessary for isocyanate production. Though the rhodium gem-dicarbonyl species, Rh(CO)/sub 2/, was observed, there was no experimental evidence demonstrating the presence of Rh(NO)/sub 2/ or Rh(NO)(CO) complexes.

Dictor, R.

1988-01-01T23:59:59.000Z

353

Cervical cancer, proxies for HPV exposure, screening scare and use of proximal and distal defense behaviors in fear buffering.  

E-Print Network [OSTI]

??As study about risk behavior in relation to getting infected with HPV, fear intensity and screening behavior of women and the use of psychological defense… (more)

Leckie, Glenn

2010-01-01T23:59:59.000Z

354

Behavior of oil muds during drilling operations  

SciTech Connect (OSTI)

This paper presents an analysis of the behavior of diesel-oil-based muds with an advanced thermal and hydraulic wellbore mathematical simulator. Recent diesel-oil-mud rheological correlations have been incorporated into the model to account for viscosity and density variations of oil mud with temperature and pressure. As rheological correlations are developed for other oil-based muds, such as mineral-oil based muds, they can also be incorporated into the model. A specific deep-well application of the model illustrates the behavior of the oil-based muds and shows the differences between water-based mud and oil-mud for local fluid densities during drilling, circulating, and static conditions. Temperature and density profiles are presented for various operating conditions to show that modeling improves the understanding of oil-mud behavior downhole.

Galate, J.W.; Mitchell, R.F.

1986-04-01T23:59:59.000Z

355

Evaluating the Impact of Embodied Conversational Agents (ECAs) Attentional Behaviors on User Retention of Cultural Content in a Simulated Mobile Environment  

Science Journals Connector (OSTI)

The paper presents an evaluation study of the impact of an ECA's attentional behaviors using a custom research method that combines facial expression analysis, eye-tracking and a retention test. The method provides additional channels to EEG-based methods ... Keywords: embodied conversational agents (ecas), eye tracking

Ioannis Doumanis, Serengul Smith

2014-11-01T23:59:59.000Z

356

A study of wind variability in the lower troposphere through power spectrum analysis at mesoscale frequencies  

E-Print Network [OSTI]

on the theoretical and practical application of the analysis method comes directly from this reference. B. Fundamental Assum tions of Power S ectrum Theor Consider a function of time X(t), such as wind speed, which is generated by a random process. Then the value... of the function X(t) at any particular point in time is a random variable. This random process may or may not have a Gaussian or normal distribution but it is a fundamental assumption (at least in the development of the theory) that the random process...

Cornett, John Sheldon

1966-01-01T23:59:59.000Z

357

Cooling season study and economic analysis of a desiccant cooling system  

E-Print Network [OSTI]

10 20 30 40 50 60 70 80 Gas Cost (3/GJ) Figure 4. 4 Gas Price vs DINC Cycle Payback Period at Various Electricity Prices SEER = 12 35 20 18 16 ~ 14 ~ 12 D o 10 8 6 o 4 $0. 06/Kwh $0. 09/Kwh $0. 12/Kwh $0. 15/Kwh $0. 'I 8/Kwh 10 20... IV ECONOMIC ANALYSIS V CONCLUSIONS 28 36 NOMENCLATURE 39 REFERENCES 46 APPENDIX A - HOUSE CONSTRUCTION DATA . . APPENDIX B - SECOND LAW COMPARISON 48 53 APPENDIX C - COOLING SEASON AND DINC CYCLE PROGRAM LISTING 72 APPENDIX D - ECONOMIC...

Lee, James Howard

2012-06-07T23:59:59.000Z

358

Standardized performance analysis (SPA) for the cow-calf enterprise: Paraguayan case study  

E-Print Network [OSTI]

in Texas and New Mexico in Tucumcari, New Mexico, This was a valuable experience because I was exposed to the entire analysis process, which was gathering data to fill the worksheets, inputting data into the sofbvare, analyzing the results and giving... kg 0 0 0 16a Alimento producido consumido por la unidad de cria Kg. por cab 0. 0 0. 0 0. 0 Valor de mercado Total de alimento producido 0 00 6b Alimento comprado consumido por la unidad de cria Fibra Balanceado o concentrado Minerales...

Nunez, Jorge Luis Rejis

1996-01-01T23:59:59.000Z

359

Corrosion-fatigue crack growth behavior of surface crack on AH36 TMCP steel weld in seawater  

SciTech Connect (OSTI)

Fatigue crack growth behavior in seawater of surface crack on the weld was studied with a structural steel, AH36, manufactured by the thermo-mechanical control process (TMCP). Crack growth rate was measured for the surface cracks located in different regions of weld, such as the heat affected zone, the weld metal and the base metal. Influence of the welding condition was investigated with the variation of heat inputs of 80, 120 and 180 kJ/cm. Electrochemical analysis of each region of the weld was also performed to investigate the corrosion behavior between the weld and the base metal.

Kweon, Y.G.; Jeong, H.D.; Chang, R.W. [Research Inst. of Industrial Science and Technology, Pohang (Korea, Republic of). Welding Research Center

1995-12-31T23:59:59.000Z

360

Analysis of Customer Enrollment Patterns in TIme-Based Rate Programs:  

Broader source: Energy.gov (indexed) [DOE]

Analysis of Customer Enrollment Patterns in TIme-Based Rate Analysis of Customer Enrollment Patterns in TIme-Based Rate Programs: Initial Results from the SGIG Consumer Behavior Studies (July 2013) Analysis of Customer Enrollment Patterns in TIme-Based Rate Programs: Initial Results from the SGIG Consumer Behavior Studies (July 2013) The U.S. Department of Energy is implementing the Smart Grid Investment Grant (SGIG) program under the American Recovery and Reinvestment Act of 2009 (Recovery Act). The SGIG program involves 99 projects that are deploying smart grid technologies, tools, and techniques for electric transmission, distribution, advanced metering, and customer systems. A subset of the 99 SGIG projects is conducting consumer behavior studies. These studies examine the response of residential and small commercial

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

A study on the proposes of energy analysis indicator by the window elements of office buildings in Korea  

Science Journals Connector (OSTI)

Abstract Recently, the window area ratio of buildings has increased but the thermal insulation performance of windows is lower than the wall. Therefore, many studies have been carried out to reduce this heat loss. The Republic of Korea policies and guidelines for windows do not consider the optical and design elements of windows because it is more important to the insulation performance of windows. This paper proposes the supplement point of the Korea's policies and guidelines regarding windows through a comparison of Korea's policies and guidelines for windows, checks the variation of the energy consumption of buildings through the variation of the window elements, and proposes an energy analysis indicator for the Republic of Korea's situation. This study confirmed that the variation of the window elements affect to energy consumption by previous studies to consider in window design according to the policies and guidelines. The window elements were divided into performance elements of the windows and architectural/equipment plan element. By analyzing the energy consumption by changing the element, this study confirmed the variation of energy consumption by using the COMFEN4.0 simulation tool. This paper proposes an actual energy analysis indicator in the Republic of Korea.

Seok-Hyun Kim; Sun-Sook Kim; Kwang-Woo Kim; Young-Hum Cho

2014-01-01T23:59:59.000Z

362

Neuroimaging for drug addiction and related behaviors  

SciTech Connect (OSTI)

In this review, we highlight the role of neuroimaging techniques in studying the emotional and cognitive-behavioral components of the addiction syndrome by focusing on the neural substrates subserving them. The phenomenology of drug addiction can be characterized by a recurrent pattern of subjective experiences that includes drug intoxication, craving, bingeing, and withdrawal with the cycle culminating in a persistent preoccupation with obtaining, consuming, and recovering from the drug. In the past two decades, imaging studies of drug addiction have demonstrated deficits in brain circuits related to reward and impulsivity. The current review focuses on studies employing positron emission tomography (PET), functional magnetic resonance imaging (fMRI), and electroencephalography (EEG) to investigate these behaviors in drug-addicted human populations. We begin with a brief account of drug addiction followed by a technical account of each of these imaging modalities. We then discuss how these techniques have uniquely contributed to a deeper understanding of addictive behaviors.

Parvaz M. A.; Parvaz, M.A.; Alia-Klein, N.; Woicik,P.A.; Volkow, N.D.; Goldstein, R.Z.

2011-10-01T23:59:59.000Z

363

Performance Assessment Uncertainty Analysis for Japan's HLW Program Feasibility Study (H12)  

SciTech Connect (OSTI)

Most HLW programs in the world recognize that any estimate of long-term radiological performance must be couched in terms of the uncertainties derived from natural variation, changes through time and lack of knowledge about the essential processes. The Japan Nuclear Cycle Development Institute followed a relatively standard procedure to address two major categories of uncertainty. First, a FEatures, Events and Processes (FEPs) listing, screening and grouping activity was pursued in order to define the range of uncertainty in system processes as well as possible variations in engineering design. A reference and many alternative cases representing various groups of FEPs were defined and individual numerical simulations performed for each to quantify the range of conceptual uncertainty. Second, parameter distributions were developed for the reference case to represent the uncertainty in the strength of these processes, the sequencing of activities and geometric variations. Both point estimates using high and low values for individual parameters as well as a probabilistic analysis were performed to estimate parameter uncertainty. A brief description of the conceptual model uncertainty analysis is presented. This paper focuses on presenting the details of the probabilistic parameter uncertainty assessment.

BABA,T.; ISHIGURO,K.; ISHIHARA,Y.; SAWADA,A.; UMEKI,H.; WAKASUGI,K.; WEBB,ERIK K.

1999-08-30T23:59:59.000Z

364

Station Blackout: A case study in the interaction of mechanistic and probabilistic safety analysis  

SciTech Connect (OSTI)

The ability to better characterize and quantify safety margins is important to improved decision making about nuclear power plant design, operation, and plant life extension. As research and development (R&D) in the light-water reactor (LWR) Sustainability (LWRS) Program and other collaborative efforts yield new data, sensors, and improved scientific understanding of physical processes that govern the aging and degradation of plant SSCs needs and opportunities to better optimize plant safety and performance will become known. The purpose of the Risk Informed Safety Margin Characterization (RISMC) Pathway R&D is to support plant decisions for risk-informed margin management with the aim to improve economics, reliability, and sustain safety of current NPPs. In this paper, we describe the RISMC analysis process illustrating how mechanistic and probabilistic approaches are combined in order to estimate a safety margin. We use the scenario of a “station blackout” wherein offsite power and onsite power is lost, thereby causing a challenge to plant safety systems. We describe the RISMC approach, illustrate the station blackout modeling, and contrast this with traditional risk analysis modeling for this type of accident scenario.

Curtis Smith; Diego Mandelli; Cristian Rabiti

2013-11-01T23:59:59.000Z

365

Computational study and analysis of structural imperfections in 1D and 2D photonic crystals  

E-Print Network [OSTI]

Dielectric reflectors that are periodic in one or two dimensions, also known as 1D and 2D photonic crystals, have been widely studied for many potential applications due to the presence of wavelength-tunable photonic ...

Maskaly, Karlene Rosera

2005-01-01T23:59:59.000Z

366

Skin strain analysis software for the study of human skin deformation  

E-Print Network [OSTI]

Skin strain studies have never been conducted in a precise and automated fashion. Previous in vivo strain investigations have been labor intensive and the data resolution was extremely limited such that their results were ...

Marecki, Andrew T. (Andrew Thomas)

2012-01-01T23:59:59.000Z

367

A study of a two-stroke free piston linear engine using numerical analysis  

Science Journals Connector (OSTI)

We studied a two-stroke free piston linear engine by numerical models and simulation. The numerical ... ratio, reciprocating mass, spark timing, and spring stiffness on the operating characteristics as well as pe...

Nguyen Ba Hung; Ock Taeck Lim

2014-04-01T23:59:59.000Z

368

Relaxation behavior of oxygen deficient strontium manganite  

SciTech Connect (OSTI)

Conduction behavior of nanocrystalline oxygen deficient ceramic-SrMnO{sub 3–?}(??0.14) has been studied. The structural analysis of nano-SrMnO{sub 2.86} follows hexagonal unit cell structure with P6{sub 3}/mmc (194) space group belonging to 6/mmm point group with 4H – layered type hexagonal-cubic layers. The system have lattice parameters; a = 5.437(92) Å, c = 9.072(92) Å, c/a?1.66 (85) with ? =90° ?= 120° and cell volume, V= 232.35(18). The relaxation times estimated from complex impedance and modulus relaxation spectrum, show the thermally activated system with corresponding activation energies as 0.66 eV and 0.51 eV The stretching factor ‘?’ from the scaled modulus spectrum shows the poly-dispersive non-Debye nature of the system. The hopping number ‘n’ shows the influence of ionic charge carriers which controls the conduction mechanism of nano-SrMnO{sub 2.86}.

Pandey, Namita, E-mail: namita205@gmail.com; Thakur, Awalendra Kumar, E-mail: namita205@gmail.com [Department of Physics, Indian Institute of Technology-Patna, Patna- 800013 (India)

2014-04-24T23:59:59.000Z

369

The history of NATO TNF policy: The role of studies, analysis and exercises conference proceedings. Volume 2: Papers and presentations  

SciTech Connect (OSTI)

This conference was organized to study and analyze the role of simulation, analysis, modeling, and exercises in the history of NATO policy. The premise was not that the results of past studies will apply to future policy, but rather that understanding what influenced the decision process -- and how -- would be of value. The structure of the conference was built around discussion panels. The panels were augmented by a series of papers and presentations focusing on particular TNF events, issues, studies, or exercises. The conference proceedings consist of three volumes. Volume 1 contains the conference introduction, agenda, biographical sketches of principal participants, and analytical summary of the presentations and panels. This volume contains a short introduction and the papers and presentations from the conference. Volume 3 contains selected papers by Brig. Gen. Robert C. Richardson III (Ret.). Individual papers in this volume were abstracted and indexed for the database.

Rinne, R.L.

1994-02-01T23:59:59.000Z

370

Mechanism for decomposition of aurichalcite—A controlled rate thermal analysis study  

Science Journals Connector (OSTI)

Controlled rate thermal analysis (CRTA) of a series of synthetic aurichalcite (Zn,Cu2+)5(CO3)2(OH)6 with the ratio of Cu/Zn varying from 0.1 to 0.5 proves that the dehydroxylation and carbonate loss occur as non-isothermal and isothermal decompositions. The temperature of the thermal decomposition increases as the Cu/Zn ratio increases. Thermal decomposition of aurichalcite provides a method for preparing mixed oxide catalysts at the molecular level as opposed to the particle level. CRTA technology enables separation of the processes of dehydration, dehydroxylation and decarbonation. X-ray diffraction of the products of the thermal decomposition proved to be a mixture of the oxides ZnO and Cu2O.

Veronika Vágvölgyi; Ashley Locke; Matthew Hales; János Kristóf; Ray L. Frost; Erzsébet Horváth; Wayde N. Martens

2008-01-01T23:59:59.000Z

371

Design Analysis and Manufacturing Studies for ITER In-Vessel Coils  

SciTech Connect (OSTI)

ITER is incorporating two types of In Vessel Coils (IVCs): ELM Coils to mitigate Edge Localized Modes and VS Coils to provide Vertical Stabilization of the plasma. Strong coupling with the plasma is required so that the ELM and VS Coils can meet their performance requirements. Accordingly, the IVCs are in close proximity to the plasma, mounted just behind the Blanket Shield Modules. This location results in a radiation and temperature environment that is severe necessitating new solutions for material selection as well as challenging analysis and design solutions. Fitting the coil systems in between the blanket shield modules and the vacuum vessel leads to difficult integration with diagnostic cabling and cooling water manifolds.

Kalish, M.; Heitzenroeder, P.; Neumeyer, C.; Titus, P.; Zhai, Y.; Zatz, I.; Messineo, M.; Gomez, M.; Hause, C. [Princeton Plasma Physics Lab., Princeton, NJ (United States); Daly, E.; Martin, A. [ITER Organization, St. Paul-lez-Duranace (France); Wu, Y.; Jin, J.; Long, F.; Song, Y.; Wang, Z.; Yun, Zan [Chinese Academy of Sciences, Anhui (China). Institute of Plasma Physics; Hsiao, J. [Vector Resources, Annandale, VA (United States); Pillsbury, J. R. [Sherbrooke Consulting, Arlington, VA (United States); Bohm, T.; Sawan, M. [Univ. of Wisconsin-Madison, WI (United States). Fustion Technology Institute; Jiang, NFN [Southwestern Institute of Physics, Chengdu (China)

2014-07-01T23:59:59.000Z

372

Gianluca Esposito, Ph.D Unit for Affiliative Social Behavior, RIKEN Brain Science Institute, Japan  

E-Print Network [OSTI]

Gianluca Esposito, Ph.D Unit for Affiliative Social Behavior, RIKEN Brain Science Institute, Japan, collaborations and has been recognized several times by a number of agencies from Europe, Japan, USA and UAE (Japan), where he is working comparative neuro-behavioral analysis of infantile attachment behavior

Kazama, Hokto

373

An Analysis of Stochastic Game Theory for Multiagent Reinforcement Learning  

E-Print Network [OSTI]

An Analysis of Stochastic Game Theory for Multiagent Reinforcement Learning Michael Bowling Manuela 15213 Abstract Learning behaviors in a multiagent environment is crucial for developing and adapting and adapt. Stochastic games, first studied in the game theory community, are a natural extension of MDPs

374

Conditional Random Fields for Morphological Analysis of Wireless ECG Signals  

E-Print Network [OSTI]

Conditional Random Fields for Morphological Analysis of Wireless ECG Signals Annamalai Natarajan recording of ECG signals. This capability has diverse applications in the study of human health and behavior present a novel approach to the problem of extracting the morphological structure of ECG signals based

Massachusetts at Amherst, University of

375

Issues in the Study of Behavior  

Science Journals Connector (OSTI)

...forthe immediately preceding peri-od in eastern Algeria (see Lubell et al., Science 191, 910 [19761). Gilman marshalls his...transition from Paleolithic to Neo-lithic economies. DAVID LUBELL Department ofAnthropology, Erindale College, University ofToronto...

HOWARD S. HOFFMAN

1977-02-18T23:59:59.000Z

376

Social media for large studies of behavior  

Science Journals Connector (OSTI)

...Pinterest users ; www.pinterest.com/pin/234257618087475827/. 11 Morstatter F. Pfeffer J. Liu H. , Proceedings of Web Science Track, at the 23rd Conference on the WWW ( Association for Computing Machinery , New York , 2014 ), pp. 555 – 556...

Derek Ruths; Jürgen Pfeffer

2014-11-28T23:59:59.000Z

377

A QUALITATIVE CASE STUDY ANALYSIS OF THE CURRENT CONDITION OF NICHE MARKET, INDEPENDENT MOTION PICTURE PRODUCERS  

E-Print Network [OSTI]

their own motives, and how those motives in turn impact the decisions they make during a film production. By capturing the motives, decisions, and practices of independent producers we have a snap shot of what it is like to take part in contemporary... by examining their motives through common themes that emerge through a series of case study analyses. The analyses will help identify the motives and influential factors that may have an impact on the process of a motion picture’s production. This study...

Cole, Samuel Jason

2013-12-31T23:59:59.000Z

378

Building America Special Research Project: High-R Walls Case Study Analysis  

Broader source: Energy.gov [DOE]

This report considers a number of promising wall systems with improved thermal control to improve plant-wide performance. Unlike previous studies, it considers performance in a more realistic matter, including some true three-dimensional heat flow and the relative risk of moisture damage.

379

Interlaboratory Comparability Study of Cancer Gene Expression Analysis Using Oligonucleotide Microarrays  

Science Journals Connector (OSTI)

...Because tissue handling and RNA extraction...standardized protocol. MATERIALS AND METHODS Study...Figure 1 Fig. 1 Diagram of experimental...see Supplementary Material for data on laboratory-to-laboratory...see Supplementary Material). The relationships...contributed by tissue handling and RNA extraction...

Kevin K. Dobbin; David G. Beer; Matthew Meyerson; Timothy J. Yeatman; William L. Gerald; James W. Jacobson; Barbara Conley; Kenneth H. Buetow; Mervi Heiskanen; Richard M. Simon; John D. Minna; Luc Girard; David E. Misek; Jeremy M.G. Taylor; Samir Hanash; Katsuhiko Naoki; D. Neil Hayes; Christine Ladd-Acosta; Steven A. Enkemann; Agnes Viale; and Thomas J. Giordano

2005-01-15T23:59:59.000Z

380

CREDIT:P.HUEY/SCIENCE enetic analysis is an art. Just by studying  

E-Print Network [OSTI]

, and studying the defects of cars that come out (1). Nowadays, as a result of high-throughput genomics, those how cars work by waiting outside the factory, tying the hands of individual workers as they go in mutant ab is more normal than expected and "enhancement" when the mutant ab pheno- type is more defective

Eddy, Sean

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Analysis of Airport Performance using Surface Surveillance Data: A Case Study of BOS  

E-Print Network [OSTI]

operational performance of an airport, and present them for the specific case of Boston Logan International. For this study, we used ASDE-X data from Boston Logan International Airport (BOS), dra of Technology, Cambridge, MA 02139. hamsa@mit.edu. AIAA Member. Operations Manager, Boston Airport Traffic

Gummadi, Ramakrishna

382

Statistical Analysis of the Fourth Case Study in Reverse Auction Research  

E-Print Network [OSTI]

study show that a Reverse Auction can result in an increase in the average cost of the job to the owner. Also, there is evidence of game play amongst the bidders and against the purchaser that causes their profits to rise as they gain proficiency...

Bhalerao, Aneesh Madhao

2011-10-21T23:59:59.000Z

383

Post-combustion Carbon Capture with a Gas Separation Membrane: Parametric Study, Capture Cost, and Exergy Analysis  

Science Journals Connector (OSTI)

Post-combustion Carbon Capture with a Gas Separation Membrane: Parametric Study, Capture Cost, and Exergy Analysis ... (5) In a post-combustion CO2 capture process, the purity of the captured CO2 in the permeate stream mainly depends upon the selectivity of CO2 over the other gas species, such as N2 and O2. ... Capturing CO2 from flue gases in a power plant is not like traditional gas processing or purification, there are no strict requirements on the decarbonized sweet gas, which means no strict requirement on the CO2 concentration in the sweet gas or CO2 capture ratio. ...

Xiangping Zhang; Xuezhong He; Truls Gundersen

2013-03-04T23:59:59.000Z

384

Inventory and analysis of bay management structure for the Corpus Christi Bay National Estuary Program study area  

SciTech Connect (OSTI)

This report characterizes the existing resource management framework for the Corpus Christi Bay National Estuary Program (CCBNEP) study area. Historical and current regulatory and non-regulatory approaches to resource management were examined, and an identification made of the significant gaps or overlaps in organizational roles and authorities. Efforts were taken to coordinate the Base Program Analysis with that for the Galveston Bay NEP, the Texas Coastal Management Program, and other similar projects, to both build upon and ensure that efforts are not duplicated.

Richard, B.; Bacon, E.; Dietz, R.; DeMoors, K.; Needham, K.

1996-02-01T23:59:59.000Z

385

21CMMC: An MCMC analysis tool enabling astrophysical parameter studies of the cosmic 21cm signal  

E-Print Network [OSTI]

We introduce 21CMMC: a parallelized, Monte Carlo Markov Chain analysis tool, incorporating the epoch of reionization (EoR) semi-numerical simulation 21CMFAST. 21CMMC estimates astrophysical parameter constraints from 21cm EoR experiments, accommodating a variety of EoR models, as well as priors on model parameters and the reionization history. To illustrate its utility, we consider two different EoR scenarios, one with a single population of galaxies (with a mass-independent ionizing efficiency) and a second, more general model with two different, feedback-regulated populations (each with mass-dependent ionizing efficiencies). As an example, combining three observations (z=8, 9 and 10) of the 21cm power spectrum with a conservative noise estimate and uniform model priors, we find that LOFAR/HERA/SKA can constrain common reionization parameters: the ionizing efficiency (or similarly the escape fraction), the mean free path of ionizing photons, and the log of the minimum virial temperature of star-forming halos...

Greig, Bradley

2015-01-01T23:59:59.000Z

386

NREL: Energy Analysis: Geospatial Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Enlarge image Highlights of Recent Studies U.S. Renewable Energy Technical Potentials: A GIS-Based Analysis This study summarizes the achievable energy generation, or technical...

387

The Behavior of Lakes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Behavior of Lakes Behavior of Lakes Nature Bulletin No, 320-A November 9, 1968 Forest Preserve District of Cook County Richard B. Ogilvie, President Roland F. Eisenbeis, Supt. of Conservation THE BEHAVIOR OF LAKES In many ways lakes are like living things -- especially a tree. A lake breathes and has a circulation; it is warmed and fed; it harbors many other living things; and in cold weather it goes into a winter sleep. If it were not for the special character of a body of standing water which we call a lake, the things that live in it would be radically different or, perhaps, not exist at all. Water is a very strange substance in many ways. For example, it is remarkable because it expands, becomes lighter and floats when it freezes into ice. If, like most substances, water shrank when it changed from a liquid to a solid, it would sink. Then, ponds and lakes would freeze from the bottom up and become solid blocks of ice. This would make life impossible for most kinds of aquatic plants and animals and indirectly affect all living things. Further, water is a poor conductor of heat -- otherwise lakes would freeze much deeper and, again most living things in it would perish.

388

Microsoft Word - Report on Prevention Analysis Trial Method and Case Study Improvments - April 2012.docx  

Broader source: Energy.gov (indexed) [DOE]

1-23479 1-23479 Revision 1 Risk Informed Safety Margin Characterization Case Study: Selection of Electrical Equipment To Be Subjected to Environmental Qualification M3LW-12IN0702012 "Expansion of Trial Method and Case Study and Improvements" D. Blanchard (AREI) R. Youngblood (INL) April 2012 DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. References herein to any specific commercial product,

389

Analysis of SaO? & heart rate from the combined PBG/PBA study  

E-Print Network [OSTI]

that while SaOq level changes are not statistically significant, heart rate changes are considerable when transitioning to increased G, level. TABLE OF CONTENTS Page ABSTRACT TABLE OF CONTENTS. n1 . 1V LIST OF FIGURES. LIST OF TABLES . . . Vl... arterial saturation and hemostasis in dependent regions) potentially compromise the ability to tolerate possible post-decompression hypoxia and PBA [2], Problem Statement This study will evaluate the effects of n ansitioning Irom positive pressure...

Dawes, Derek Shawn

2012-06-07T23:59:59.000Z

390

Suburban recreation subdivisions in Montgomery County, Texas - a case study analysis  

E-Print Network [OSTI]

degree of ':!ASTER OF SCIENCE Yiay 1969 Najor Subject: Recreation and Resource:; Development bjj CA&. - j1i?' ~, ' jc' Vc', 71 c. . ', i '. r~ e3 a: t ~ . ", ~. ": r, d c:onte~' & v: r'r ABSTRACT Suburban Recreation Subdivisions in Montgomery... affect subdivision development in Montgomery County, Texas, and through a case study, to examine some of the relationships among the factors concerning recreation facilities and population characteristics in a recrea- tion subdivision. Specific...

Watt, Carson Earl

2012-06-07T23:59:59.000Z

391

Study of a Fault Analysis System for a Heat Supply Network Based on GIS  

E-Print Network [OSTI]

Liu Haoxuan Tang Xiaoxia Wang Na Li Wei Wang Doctoral Ph.D Ph.D Master Doctoral Professor Candidate Associate Professor Lecturer Candidate Candidate School of Municipal & Environmental Engineering, Harbin Institute of Technology School... Liu, Pinghua Zou, Haoxuan Tang. Study on Valve-shut off Scheme of Dimensional Heat Supplying Network Based on GIS[J]. Journal of WuhanUniversity of Technology. 2006, 28 1? :51-54. (In Chinese) [5] Xiaoxia Wang, Pinghua Zou, Xiangli Li. Scheme...

Zou, P.; Liu, M.; Tang, H.; Wang, X.; Li, N.; Wang, W.

2006-01-01T23:59:59.000Z

392

Seismic facies analysis of entrenched valley fill: a case study in Galveston Bay area, Texas  

SciTech Connect (OSTI)

The entrenched Trinity River valley beneath Galveston Bay was studied using high-resolution seismic data. The shape of the incised valley was determined on mini-sparker lines, which were obtained from the US Geological Survey in Corpus Christi, Texas. Uniboom lines, shot in 1987 aboard the Rice University research vessel R/V Matagorda, provided detailed records of the sediments filling the valley.

Smyth, W.C.; Anderson, J.B.; Thomas, M.A.

1988-09-01T23:59:59.000Z

393

Health Behavior Health Promotion -Prevention  

E-Print Network [OSTI]

chronic disease complications Improve quality of life Reduce health care costs #12;ImpactHealth Behavior Health Promotion - Prevention Modification of Health Attitudes and Health Behavior #12;Health Promotion: An Overview Basic philosophy Good health = individual and collective goal

Meagher, Mary

394

Analysis of the Newphew/Spore model for determining costs of coal mining in Appalachia. Computer model study. Final report  

SciTech Connect (OSTI)

The purpose of the study was primarily to determine whether a computer program developed to determine the costs of coal surface mining and reclamation in Appalachia was capable of being responsive to the needs of the Office of Surface Mining for projecting the extraction costs of coal in support of the Small Operator Assistance Program. The study analysis validated the model and adapted it to specific small operator needs in terms of user flexibility. It found that the model as originally programmed was subject to a number of limitations and functional constraints. Although a substantial loosening of these constraints was not feasible within the current scope of work, it did establish an approach to reprogram the model to take into account dynamically certain previously static aspects of the model. The approach was implemented in order to made the model more useful and to establish a baseline for future development.

Nephew, E.A.; Spore, R.L.

1980-06-06T23:59:59.000Z

395

Transient thermal behavior of stratospheric balloons at float conditions  

Science Journals Connector (OSTI)

The prediction of the thermal behavior of stratospheric balloons under varying environmental conditions is one of the key issues in the design and flight test of balloons. In this paper, a three-dimensional transient thermal model is developed to predict the thermal behavior of spherical stratospheric balloons. The diurnal variations of the skin and lifting gas temperatures at float conditions are discussed in detail. The further studies on the thermal behavior of stratospheric balloons are presented also.

Xin-Lin Xia; De-Fu Li; Chuang Sun; Li-Ming Ruan

2010-01-01T23:59:59.000Z

396

Solar Reserve Methodology for Renewable Energy Integration Studies Based on Sub-Hourly Variability Analysis: Preprint  

SciTech Connect (OSTI)

Increasing penetrations of wind a solar energy are raising concerns among electric system operators because of the variability and uncertainty associated with power sources. Previous work focused on the quantification of reserves for systems with wind power. This paper presents a new methodology that allows the determination of necessary reserves for high penetrations of photovoltaic (PV) power and compares it to the wind-based methodology. The solar reserve methodology is applied to Phase 2 of the Western Wind and Solar Integration Study. A summary of the results is included.

Ibanez, E.; Brinkman, G.; Hummon, M.; Lew, D.

2012-08-01T23:59:59.000Z

397

Studies on dual fuel engine performance and exhaust emission analysis by response surface methodology  

Science Journals Connector (OSTI)

In this present study a five factor three level Box-Behnken response surface design was used to study the effect of five independent variables such as diesel (40%–100%) ethanol (0%-30%) pongamia oil methyl ester (POME) (0%–30%) compressed natural gas (CNG) (0%–20%) and load of the engine (0%–100%) on the performance (brake thermal efficiency brake specific fuel consumption and exhaust gas temperature) and emission characteristics (carbon mono-oxide (CO) carbon dioxides (CO2) unburnt hydrocarbon oxides of nitrogen (NOX) and smoke) of a single cylinder four stroke water cooled diesel engine converted to dual fuel system. It was operated with either diesel fuel or blend with CNG using an electronically controlled solenoid actuated valve mechanism. The experimental results showed that all the process variables have significant effect on the engine performance. The emission characteristics (CO CO2 NOX and Smoke) were significantly lower than the diesel fuel emissions. From the experimental results second order polynomial models were developed to predict the response variables. The optimal conditions were determined and it was found to be: Diesel 70% Ethanol 15% POME 15% CNG 10% and load 50% respectively with a desirability value of 0.894.

R. Senthilraja; V. Sivakumar; J. Prakash Maran

2014-01-01T23:59:59.000Z

398

Energy-water analysis of the 10-year WECC transmission planning study cases.  

SciTech Connect (OSTI)

In 2011 the Department of Energy's Office of Electricity embarked on a comprehensive program to assist our Nation's three primary electric interconnections with long term transmission planning. Given the growing concern over water resources in the western U.S. the Western Electricity Coordinating Council (WECC) requested assistance with integrating water resource considerations into their broader electric transmission planning. The result is a project with three overarching objectives: (1) Develop an integrated Energy-Water Decision Support System (DSS) that will enable planners in the Western Interconnection to analyze the potential implications of water stress for transmission and resource planning. (2) Pursue the formulation and development of the Energy-Water DSS through a strongly collaborative process between the Western Electricity Coordinating Council (WECC), Western Governors Association (WGA), the Western States Water Council (WSWC) and their associated stakeholder teams. (3) Exercise the Energy-Water DSS to investigate water stress implications of the transmission planning scenarios put forward by WECC, WGA, and WSWC. The foundation for the Energy-Water DSS is Sandia National Laboratories Energy-Power-Water Simulation (EPWSim) model (Tidwell et al. 2009). The modeling framework targets the shared needs of energy and water producers, resource managers, regulators, and decision makers at the federal, state and local levels. This framework provides an interactive environment to explore trade-offs, and 'best' alternatives among a broad list of energy/water options and objectives. The decision support framework is formulated in a modular architecture, facilitating tailored analyses over different geographical regions and scales (e.g., state, county, watershed, interconnection). An interactive interface allows direct control of the model and access to real-time results displayed as charts, graphs and maps. The framework currently supports modules for calculating water withdrawal and consumption for current and planned electric power generation; projected water demand from competing use sectors; and, surface and groundwater availability. WECC's long range planning is organized according to two target planning horizons, a 10-year and a 20-year. This study supports WECC in the 10-year planning endeavor. In this case the water implications associated with four of WECC's alternative future study cases (described below) are calculated and reported. In future phases of planning we will work with WECC to craft study cases that aim to reduce the thermoelectric footprint of the interconnection and/or limit production in the most water stressed regions of the West.

Tidwell, Vincent Carroll; Passell, Howard David; Castillo, Cesar; Moreland, Barbara

2011-11-01T23:59:59.000Z

399

DOE Hydrogen Analysis Repository: H2A Case Study: Future Central Natural  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Natural Gas Reforming without Sequestration Natural Gas Reforming without Sequestration Project Summary Full Title: H2A Case Study: Longer-Term (2020-2030) Hydrogen from Natural Gas without CO2 Capture and Sequestration Project ID: 240 Principal Investigator: Darlene Steward Keywords: Hydrogen production; steam methane reforming; natural gas Purpose Steam reforming of hydrocarbons continues to be the most efficient, economical, and widely used process for production of hydrogen and hydrogen/carbon monoxide mixtures. The process involves a catalytic conversion of the hydrocarbon and steam to hydrogen and carbon oxides. Since the process works only with light hydrocarbons that can be vaporized completely without carbon formation, the feedstocks used range from methane (natural gas) to naphtha to No. 2 fuel oil.

400

A comprehensive study of the analysis and economic benefits of radioactive tracer engineered simulation procedures  

SciTech Connect (OSTI)

Hydraulic Fracturing is an important technology to enhance production from tight gas reservoirs. Several techniques have been utilized to attempt to evaluate the effectiveness of hydraulic fracturing treatments. One technique, radioactive tracers, is currently used on over 15 % of the stimulation treatments performed in the U.S. With proper materials, design, and execution, tracers can be used to locate the presence and concentration of proppant at the wellbore in order to evaluate vertical and radial proppant distribution. A comprehensive study of over 100 fracture treatments has been completed in which radioactive tracers were used along with production logs, stress logs, post-fracturing completion reports, and production history to analyze completion effectiveness in four different reservoirs. Additionally, an economic benefit model was constructed to evaluate the benefit/cost ratio of applying the technology.

Fisher, K.; Robinson, B.M.; Voneiff, G.W.

1995-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Sensitivity analysis and study of the mixing uniformity of a microfluidic mixer  

E-Print Network [OSTI]

We consider a microfluidic mixer based on hydrodynamic focusing, which is used to initiate the folding process of individual proteins. The folding process is initiated by quickly diluting a local denaturant concentration, and we define mixing time as the time advecting proteins experience a specified to achieve a local drop in denaturant concentration. In previous work, we presented a minimization of mixing time which considered optimal geometry and flow conditions, and achieved a design with a predicted mixing time of 0.10 $\\mu$s. The aim of the current paper is twofold. First, we explore the sensitivity of mixing time to key geometric and flow parameters. In particular, we study the angle between inlets, the shape of the channel intersections, channel widths, mixer depth, mixer symmetry, inlet velocities, working fluid physical properties, and denaturant concentration thresholds. Second, we analyze the uniformity of mixing times as a function of inlet flow streamlines. We find the shape of the intersection,...

Ivorra, Benjamin; Ramos, Ángel M; Santiago, Juan G

2015-01-01T23:59:59.000Z

402

Socioeconomics in supply chain management: a case study analysis of facility location decisions with GIS  

Science Journals Connector (OSTI)

Facility location decisions are considered the most critical part of the supply chain and are vital for efficient and effective flow of goods and materials. Engineers and planners continue to recognise the uncertainty regarding future conditions with facility location decisions and realise the fact that transportation decisions are often on short notice in response to facility changes. Environmental justice assessment has traditionally focused on identifying distributive effects to protected populations. No quantitative comparisons of supply chain facility location decisions on protected populations have been reported in the literature. The objective of this research is to develop a multi-objective framework for integrating the socioeconomic effects of facility location decisions on protected populations. Various socioeconomic factors are integrated with geographic information systems to determine the extent of impact of supply chain facility locations on protected populations. A case study is performed to examine the robustness of the developed methodology.

Coray Davis

2011-01-01T23:59:59.000Z

403

Effectiveness and Acceptability of a Behavior Monitoring Program for Secondary Students At-risk for Emotional and Behavioral Disorders  

E-Print Network [OSTI]

can decrease disruptive behaviors in schools. In investigating the reliability of daily behavior ratings Chafouleas, Christ, Riley- Tillman, Briesch, and Chanese (2007) found that daily behavior ratings are likely to approximate or exceed..., perception of the intervention?s overall benefit to child, and ratings of the intervention?s ability to handle problems fell in the slightly agree to agree range as well. In a more recent study, Riley-Tillman, Chafouleas, Briesch, and Eckert (2008...

White, Jillian R.

2011-02-22T23:59:59.000Z

404

Modeling behavioral considerations related to information security.  

SciTech Connect (OSTI)

The authors present experimental and simulation results of an outcome-based learning model for the identification of threats to security systems. This model integrates judgment, decision-making, and learning theories to provide a unified framework for the behavioral study of upcoming threats.

Martinez-Moyano, I. J.; Conrad, S. H.; Andersen, D. F. (Decision and Information Sciences); (SNL); (Univ. at Albany)

2011-01-01T23:59:59.000Z

405

COLLEGE OF BEHAVIORAL AND COMMUNITY SCIENCES  

E-Print Network [OSTI]

and Disorders, with concentrations in Interpreter Training, Deaf Studies, and Language Health Counseling, Social Work, and Speech- Language Pathology. Doctoral programs are offered in Aging of Public Health at both the master's and doctoral level. General Information The College of Behavioral

Meyers, Steven D.

406

Weaninqc in Rats: 11. Pup Behavior Patterns  

E-Print Network [OSTI]

Weaninqc in Rats: 11. Pup Behavior Patterns EDDA THIELS JEFFREY R. ALBERTS Department of Psychology Hanover, New Hampshire In this study, litters of rat pups and their mothers were continuously video that period. Prior to the onset of solid food intake (Day 18). pups spent most of their active time suckling

407

Analysis of Michigan's demand-side electricity resources in the residential sector: Volume 3, End-use studies: Revised final report  

SciTech Connect (OSTI)

This volume of the ''Analysis of Michigan's Demand-Side Electricity Resources in the Residential Sector'' contains end-use studies on various household appliances including: refrigerators, freezers, lighting systems, water heaters, air conditioners, space heaters, and heat pumps. (JEF)

Krause, F.; Brown, J.; Connell, D.; DuPont, P.; Greely, K.; Meal, M.; Meier, A.; Mills, E.; Nordman, B.

1988-04-01T23:59:59.000Z

408

A study of in-cylinder combustion processes by using high speed multi-spectral infrared imaging and a robust statistical analysis method.  

E-Print Network [OSTI]

??Combustion processes in a spark-ignition engine were studied by using a high speed multi-spectral infrared camera system and a new robust statistical analysis method. Among… (more)

VanderVeer, Joseph R.

2008-01-01T23:59:59.000Z

409

Public–private partnerships value in bioenergy projects: Economic feasibility analysis based on two case studies  

Science Journals Connector (OSTI)

Abstract Greece and Italy are facing serious energy challenges concerning sustainability and greenhouse gas emissions as well as security of supply and the competitiveness of the internal energy market. These challenges require investments by the public sector, while the countries have seen in the last years their debts rising. A solution to promote bioenergy business, without rising public debt, could be the use of PPP (Public–Private Partnership). This paper presents a methodology to develop agro-energy business using PPP in two rural areas: the municipality of Evropos (in Greece) and the municipality of Montefalco (in Italy). At first biomass availability is studied, then the optimal technology is selected. Once technological issues have been analyzed PPP value for money has to be assessed. Conventional methods to evaluate economic viability of a project are not enough and a Public-Sector Comparator (PSC) has to be calculated. Typical risks of bioenergy projects are identified, estimating their probabilities and consequences. This will lead to associate a monetary value to each risk. Then the identified risks are allocated among private and public partners, establishing synergies. The allocation of risks will have consequences on the preparation of PPP contract and on partner selection procedure.

Francesco Fantozzi; Pietro Bartocci; Bruno D'Alessandro; Stratos Arampatzis; Basil Manos

2014-01-01T23:59:59.000Z

410

Study of thermal conversion of naphthenic oils on the basis of analysis of their middle fractions  

SciTech Connect (OSTI)

The composition of the middle fractions of the thermal decomposition products of naphthenic oils obtained at 300, 350, and 400{degrees}C was studied. It was shown that the character of conversions of petroleum hydrocarbons is governed by the intensity of thermal treatment and by the chemical nature of the starting oil. The removal of aliphatic chains from high-boiling components of the petroleum at a temperature below 350{degrees}C results in the new formation of linear and isoprene alkanes in their middle fractions similarly to the catagenic transformations of oils in deposits. The rise in temperature up to 400{degrees}C enhances the destruction processes related to extension of the reactions of the homolytic cleavage of C-C bonds in aliphatic chains. This results in practically complete destruction of isoprene alkanes and in predominance of low-molecular homologs among the linear alkanes. On the basis of the results obtained it can be supposed that the thermal treatment is an important factor in the conversion of naphthenic oils into paraffin oils. 10 refs., 2 figs., 3 tabs.

Kayukova, G.P.; Kurbskii, G.P.; Mutalapova, R.I. [A.E. Arbuzov Inst. of Organic and Physical Chemistry, Kazan (Russian Federation)] [and others

1994-05-10T23:59:59.000Z

411

A Study of Snake-like Locomotion Through the Analysis of a Flexible Robot Model  

E-Print Network [OSTI]

We examine the problem of snake-like locomotion by studying a system consisting of a planar inextensible elastic rod that is able to control its spontaneous curvature. Using a Cosserat model we derive, through variational principles, the equations of motion for two special cases: one in which the system is confined inside a frictionless channel, and one in which it is placed in an anisotropic frictional environment, modeling the dynamical setting of the slithering of snakes on flat surfaces. The presence of constraints in both cases leads to non-standard boundary conditions, that allow us to close the equations of motion reducing them to a differential and an integro-differential equation, respectively, for one end point (the tail) of the active rod. For the snake-like case we also provide analytic solutions for a special class of motions. We highlight the role of the spontaneous curvature in the pushing (and the steering, in the snake-like setting) needed to power locomotion. Comparisons with available experiments confirm that the model is able to capture many of the essential findings in the zoological literature. The complete solvability and the existence of analytic solutions offers a tool that may prove valuable for the design of bio-inspired soft robots.

Giancarlo Cicconofri; Antonio DeSimone

2014-09-13T23:59:59.000Z

412

System dynamics analysis of energy usage: case studies in automotive manufacturing  

Science Journals Connector (OSTI)

Our life is strongly linked with the usage of natural resources. With increase in world population and welfare there is an increasing global demand for raw material. Energy is a necessity in everyday life and is often generated using non-renewable natural resources which are finite. Manufacturing is one of the largest energy and material resource consumers. There is great concern about minimising consumption of energy in manufacturing industry to sustain the natural carrying capacity of the ecosystem. This is one of the challenges in today's industrial world. The paper presents the application of system dynamics theory for modelling and simulation of complex manufacturing processes. The simulations help to understand the intricate nature of the interrelation of process parameter and to make sound decision about minimising the energy losses. Two case studies are presented, one in cylinder head casting processes and the other in crankshaft machining. The developed models provide an insight into how to select critical operations and to identify the effect of various parameters on the energy consumption. Also, the models help to understand how changes of parameters over time affect the behaviour of energy changes. The outcome of this research enables the company to identify potential avenues to minimise energy usage and offers a decision support tool. [Received 3 June 2013; Revised 31 August 2013; Accepted 13 October 2013

Tigist Fetene Adane; Mihai Nicolescu

2014-01-01T23:59:59.000Z

413

Water balance analysis and wastewater recycling investigation in electrolytic manganese industry of China — A case study  

Science Journals Connector (OSTI)

Abstract A water balance investigation was performed for a representative electrolytic manganese metal (EMM) enterprise to study the details of water consumption and generation in the production process. A new integrated wastewater treatment approach was put forward to recover useful chemicals from the process wastewater, which contained high concentrations of Mn2 +, Cr(VI), Cr3 +, and NH4+. Cr(VI) was recovered from the wastewater by ion exchange techniques and reused as EMM passivant. The remaining wastewater containing Mn2 + and NH4+ was returned to the leaching section before the impurity removal procedure to prepare electrolytes. Complete wastewater recycling was achieved after water balance regulation and optimization. Final demonstration line results proved that the proposed process is feasible and exhibits significant advantages of better treatment effects, lower costs and lower environmental impact compared to the traditional reduction–neutralization–sedimentation treatment method. With the adoption of the proposed approach, solid waste disposal cost and the required area for the landfill yard were decreased by 80%. Operating costs for wastewater treatment were lowered by 85%. Around 4.8 kg/t EMM of Mn2 +, 5.2 kg/t EMM of NH4+ and 0.24 kg/t EMM of Cr(VI) were recovered. The recycled wastewater proportion was increased from 6.2% to 100.0%. 1.168 m3/t EMM of fresh water was saved and the equivalent amount of discharging wastewater was reduced to the environment.

Fuyuan Xu; Linhua Jiang; Zhigang Dan; Xiaojuan Gao; Ning Duan; Guimei Han; Hong Zhu

2014-01-01T23:59:59.000Z

414

Corrosion behavior of weathering steel in marine atmosphere  

Science Journals Connector (OSTI)

The corrosion behavior of weathering steel and carbon steel exposed in marine atmosphere for 4 years were studied by means of regression analysis, rust structure observation, X-ray diffraction, Raman spectrum and electrochemical impedance spectra techniques. The results show that the corrosion procedure of weathering steel is divided into two steps. In the first step, the corrosion rate is higher, while in the second step the corrosion rate is remarkably reduced due to a compact rust layer formed gradually during exposure. The compact rust layer on weathering steel, darkened observed using polarized light, is composed of Cr substitute iron oxyhydroxide. Furthermore, an equivalent circuit is set up to represent the interfaces between rusted steels and 3% NaCl solution, and the rust layer resistances of the steels were deduced from an extrapolation of the electrochemistry impedance spectra to estimate the protective properties.

Q.C Zhang; J.S Wu; J.J Wang; W.L Zheng; J.G Chen; A.B Li

2003-01-01T23:59:59.000Z

415

Handbook of coal analysis  

SciTech Connect (OSTI)

The Handbook deals with the various aspects of coal analysis and provides a detailed explanation of the necessary standard tests and procedures that are applicable to coal in order to help define usage and behavior relative to environmental issues. It provides details of the meaning of various test results and how they might be applied to predict coal behavior during use. Emphasis is on ASTM standards and test methods but ISO and BSI standards methods are included. Chapter headings are: Coal analysis; Sampling and sample preparation; Proximate analysis; Ultimate analysis; Mineral matter; Physical and electrical properties; Thermal properties; Mechanical properties; Spectroscopic properties; Solvent properties; and Glossary.

James G. Speight

2005-05-01T23:59:59.000Z

416

Calibrating Bayesian Network Representations of Social-Behavioral Models  

SciTech Connect (OSTI)

While human behavior has long been studied, recent and ongoing advances in computational modeling present opportunities for recasting research outcomes in human behavior. In this paper we describe how Bayesian networks can represent outcomes of human behavior research. We demonstrate a Bayesian network that represents political radicalization research – and show a corresponding visual representation of aspects of this research outcome. Since Bayesian networks can be quantitatively compared with external observations, the representation can also be used for empirical assessments of the research which the network summarizes. For a political radicalization model based on published research, we show this empirical comparison with data taken from the Minorities at Risk Organizational Behaviors database.

Whitney, Paul D.; Walsh, Stephen J.

2010-04-08T23:59:59.000Z

417

Sea turtle auditory behavior  

Science Journals Connector (OSTI)

Little is known of sea turtles’ auditory behavior. Startles (neck contractions) were observed in 25 loggerheads (Caretta caretta) to tones from 35 to 1000 Hz when the turtles were near the bottom of holding tanks at a depth of 1 meter. A composite audiogram revealed lowest thresholds in the 400–500 Hz range (106 dB SPL re 1 ?m). Thresholds at 735 and 1000 Hz were 117 and 156 dB respectively. Thresholds in the 100–200 Hz range were ?124?dB with lower frequencies being 10–12 dB higher. Tank diving behavior was elicited with 30 Hz at 164 dB. ABR thresholds to vibration clicks with peak energy at 500 Hz were 113 dB. Seismic air guns (Bolt 600) were employed in a large net enclosure. Turtles increased swimming speed for exposures in the 151–161 dB levels. Avoidance ?175?dB was common in initial trials before habituation. ABRs pre? and post?air gun exposures revealed TTS of more than 15 dB in one animal with recovery in 2 weeks. Air guns in depths >10?m may result in more energy in the low frequencies with unknown bioeffects. Turtle repelling with sound is possible and can be made practical (Lenhardt US Patent No. 6388949).

Martin Lenhardt

2002-01-01T23:59:59.000Z

418

Dynamic Traffic Assignment Incorporating Commuters’ Trip Chaining Behavior  

E-Print Network [OSTI]

DYNAMIC TRAFFIC ASSIGNMENT INCORPORATING COMMUTERS’ TRIP CHAINING BEHAVIOR A Thesis by WEN WANG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 2011 Major Subject: Civil Engineering Dynamic Traffic Assignment Incorporating Commuters’ Trip Chaining Behavior Copyright 2011 Wen Wang DYNAMIC TRAFFIC ASSIGNMENT...

Wang, Wen

2012-10-19T23:59:59.000Z

419

Achieving Energy Savings Through Residential Energy Use Behavior  

E-Print Network [OSTI]

Achieving Energy Savings Through Residential Energy Use Behavior Studies Energy Efficiency Research Office PIER Buildings End-use Energy Efficiency Research Program www.energy.ca.gov/research/buildings May 2012 The Issue Understanding the factors that influence energy use behavior is a largely uninvestigated

420

Thermoluminescence (TL) Analysis and Fading Studies of Naturally Occurring Salt Irradiated by 500 mGy Gamma Rays  

SciTech Connect (OSTI)

The aim of the present study was to investigate the potential of the naturally occurring salt for the dosimetry purposes, using TL. The fine powder samples (20 mg) were irradiated by {gamma}- rays from 500 mGy to 2500 mGy by using Theratron-780C Cobalt-60 source, however, this paper discusses about 500 mGy only. The TL glow curve peak parameters were studied by using Chen's peak shape equation. TL glow curves were compared with fitted curves using glow curve deconvolution (GCD) method by using Kitis expression. The kinetic parameter values (E, b and s) so calculated, are in good agreement with those available in literature. The calculated energy values were also verified by using various heating rate (VHR) method. {chi}{sup 2} test and figure of merit (FOM) calculation was done to accept the goodness of fit between the curves. Fading studies of the sample showed a good fitting between the curves. The analysis suggests that natural salt should be considered for dosimetry purposes.

Tiwari, Ramesh Chandra; Pau, Kham Suan [Department of Physics, Mizoram University: Tanhril Campus, Aizawl-796004, Mizoram (India)

2011-10-20T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Solution behavior of PEO : the ultimate biocompatible polymer.  

SciTech Connect (OSTI)

Poly(ethylene oxide) (PEO) is the quintessential biocompatible polymer. Due to its ability to form hydrogen bonds, it is soluble in water, and yet is uncharged and relatively inert. It is being investigated for use in a wide range of biomedical and biotechnical applications, including the prevention of protein adhesion (biofouling), controlled drug delivery, and tissue scaffolds. PEO has also been proposed for use in novel polymer hydrogel nanocomposites with superior mechanical properties. However, the phase behavior of PEO in water is highly anomalous and is not addressed by current theories of polymer solutions. The effective interactions between PEO and water are very concentration dependent, unlike other polymer/solvent systems, due to water-water and water-PEO hydrogen bonds. An understanding of this anomalous behavior requires a careful examination of PEO liquids and solutions on the molecular level. We performed massively parallel molecular dynamics simulations and self-consistent Polymer Reference Interaction Site Model (PRISM) calculations on PEO liquids. We also initiated MD studies on PEO/water solutions with and without an applied electric field. This work is summarized in three parts devoted to: (1) A comparison of MD simulations, theory and experiment on PEO liquids; (2) The implementation of water potentials into the LAMMPS MD code; and (3) A theoretical analysis of the effect of an applied electric field on the phase diagram of polymer solutions.

Curro, John G.; Frischknecht, Amalie Lucile

2004-11-01T23:59:59.000Z

422

Interface behavior of grouted connection on monopile wind turbine offshore structure  

Science Journals Connector (OSTI)

The interface behavior of a concrete grouted connection is studied in a monopile wind turbine offshore structure. The grouted connection between transition piece ... investigating the behavior of grouted connecti...

Ki-Du Kim; Pasin Plodpradit; Bum-Joon Kim…

2014-09-01T23:59:59.000Z

423

Development of heavy mineral and heavy element database of soil sediments in Japan using synchrotron radiation X-ray powder diffraction and high-energy (116 keV) X-ray fluorescence analysis: 1. Case study of Kofu and Chiba region  

Science Journals Connector (OSTI)

We have started the construction of a nationwide forensic soil sediment database for Japan based on the heavy mineral and trace heavy element compositions of stream sediments collected at 3024 points all over Japan obtained by high-resolution synchrotron X-ray powder diffraction (SR-XRD) and high-energy synchrotron X-ray fluorescence analysis (HE-SR-XRF). In this study, the performance of both techniques was demonstrated by analyzing soil sediments from two different geological regions, the Kofu and Chiba regions in Kanto province, to construct database that can be applied in the future to provenance analysis of soil evidence from a crime scene. The sediments from the quaternary volcanic lithology of the Chiba region were found to be dominated by heavy minerals of volcanic origin – orthopyroxene, clinopyroxene, and amphibole, and the \\{REEs\\} (rare earth elements) within the region showed similar geochemical behavior. On the other hand, four distinct heavy mineral groups were identified in the sediments of the Kofu region, where there is a great variety of underlying bedrock, and the geochemical behavior of the \\{REEs\\} in the sediments also varied accordingly to their geological origins. As such, our study shows that high-resolution SR-XRD data can provide information on the spatial distribution patterns of heavy minerals in stream sediments, playing an important role in determining their likely geographical origin. Meanwhile, the highly sensitive HE-SR-XRF data allow us to study the geochemical behavior of trace heavy elements, especially the \\{REEs\\} in the sediments, providing additional support to further constrain the likely geographical origin of the sediments determined by heavy minerals.

Willy Shun Kai Bong; Izumi Nakai; Shunsuke Furuya; Hiroko Suzuki; Yoshinari Abe; Keiichi Osaka; Takuya Matsumoto; Masayoshi Itou; Noboru Imai; Toshio Ninomiya

2012-01-01T23:59:59.000Z

424

Study of Possible Applications of Currently Available Building Information Modeling Tools for the Analysis of Initial Costs and Energy Costs for Performing Life Cycle Cost Analysis  

E-Print Network [OSTI]

power to the manufacturing industry. The need to satisfy the environmental sustainability requirements, improve operational effectiveness of buildings and apply value engineering principles has increased the dependency on life cycle costing analysis...

Mukherji, Payal Tapandev

2011-02-22T23:59:59.000Z

425

Tracing the behavior of parallel applications on extreme-scale systems |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tracing the behavior of parallel applications on extreme-scale systems Tracing the behavior of parallel applications on extreme-scale systems January 3, 2014 Tweet EmailPrint Event-tracing tools have proved vital for understanding how parallel applications behave. But new challenges make the use of event tracing on extreme-scale machines problematic. Tracing tools generate large amounts of data, which can overload the parallel file system and skew the application being studied. To remedy this problem, researchers from Argonne National Laboratory, the Technische Universität Dresden in Germany, and Oak Ridge National Laboratory have devised a new technique that enables event tracing on exascale systems. Scientists who have been using existing performance analysis tools find that these frequently do not scale to large systems. And even if they do

426

Universality in the phase behavior of soft matter: A law of corresponding states  

Science Journals Connector (OSTI)

We show that the phase diagram of substances whose molecular structure changes upon varying the thermodynamic parameters can be mapped, through state-dependent scaling, onto the phase diagram of systems of molecules having fixed structure. This makes it possible to identify broad universality classes in the complex phase scenario exhibited by soft matter, and enlightens a surprisingly close connection between puzzling phase phenomena and familiar behaviors. The analysis presented provides a straightforward way for deriving the phase diagram of soft substances from that of simpler reference systems. This method is applied here to study the phase behavior exhibited by two significative examples of soft matter with temperature-dependent molecular structure: thermally responsive colloids and polymeric systems. A region of inverse melting, i.e., melting upon isobaric cooling, is predicted at relatively low pressure and temperature in polymeric systems.

G. Malescio

2006-10-26T23:59:59.000Z

427

Cost Analysis of an HIV/AIDS Prevention Project: A Case Study of the AIDS 3 Project in BENIN.  

E-Print Network [OSTI]

??HIV/AIDS Cost analysis The objective of this thesis is to undertake a cost analysis of an HIV/AIDS prevention programme targeting vulnerable groups in Benin. The… (more)

Mito-Yobo, Kodjo Ferdinand

2011-01-01T23:59:59.000Z

428

Artificial neural network development for stress analysis of steel catenary risers: Sensitivity study and approximation of static stress range  

Science Journals Connector (OSTI)

Abstract Fatigue design of steel catenary risers (SCRs) is an important challenge especially in the touchdown zone (TDZ). Numerous parameters affect the fatigue damage in the TDZ, including those pertaining to riser motions, riser characteristics and soil properties. So far, only a few sensitivity studies have been published with limited applications, considering small ranges, investigating only a selection of input parameters or failing to examine the interactions between input parameters. This paper aims to test the robustness of previous research and extend the ranges of the input parameters for SCR systems under static loading, by means of numerical simulations. An approximation of the critical stress range in the TDZ defined by the authors previously was refined to assist the sensitivity studies. A large database was created using an automation subroutine coded in Python programming language that links the marine analysis software OrcaFlex and the optimisation software modeFRONTIER. Design of experiment techniques were used for post-processing and quantify the relative effects of the various dimensionless groups and their interactions. An approximation using a series of artificial neural networks is presented; it successfully approximates over 99% of the cases of the database with an accuracy of ±5%.

Lucile M. Quéau; Mehrdad Kimiaei; Mark F. Randolph

2014-01-01T23:59:59.000Z

429

Automobile Driving and Aggressive Behavior  

E-Print Network [OSTI]

The accident prone automobile driver. American Journal ofAutomobile Driving And Aggressive Behavior Raymond W. Novacofor its content or use. Automobile Driving and Aggressive

Novaco, Raymond W.

1991-01-01T23:59:59.000Z

430

Mechanical Behavior of Indium Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended...

431

Transition to nonchaotic behavior in a Brownian-type motion  

Science Journals Connector (OSTI)

A theoretical and numerical analysis of the transition from chaotic to nonchaotic behavior in an ensemble of particles with different initial conditions which move according to Newton’s equations in a bounding potential and are driven by an identical sequence of random forces [see S. Fahy and D. R. Hamann, Phys. Rev. Lett. 69, 761 (1992)] is presented. The threshold values of the parameters for transition from chaotic to nonchaotic behavior are defined on the basis of the map for distances between the particles and differences of velocity. Numerical analysis is fulfilled for one-dimensional Duffing V(x)=x4-x2 and V(x)=x4 potentials.

B. Kaulakys and G. Vektaris

1995-08-01T23:59:59.000Z

432

Multi-wavelength analysis of high energy electrons in solar flares: a case study of August 20, 2002 flare  

E-Print Network [OSTI]

A multi-wavelength spatial and temporal analysis of solar high energy electrons is conducted using the August 20, 2002 flare of an unusually flat (gamma=1.8) hard X-ray spectrum. The flare is studied using RHESSI, Halpha, radio, TRACE, and MDI observations with advanced methods and techniques never previously applied in the solar flare context. A new method to account for X-ray Compton backscattering in the photosphere (photospheric albedo) has been used to deduce the primary X-ray flare spectra. The mean electron flux distribution has been analysed using both forward fitting and model independent inversion methods of spectral analysis. We show that the contribution of the photospheric albedo to the photon spectrum modifies the calculated mean electron flux distribution, mainly at energies below 100 keV. The positions of the Halpha emission and hard X-ray sources with respect to the current-free extrapolation of the MDI photospheric magnetic field and the characteristics of the radio emission provide evidence of the closed geometry of the magnetic field structure and the flare process in low altitude magnetic loops. In agreement with the predictions of some solar flare models, the hard X-ray sources are located on the external edges of the Halpha emission and show chromospheric plasma heated by the non-thermal electrons. The fast changes of Halpha intensities are located not only inside the hard X-ray sources, as expected if they are the signatures of the chromospheric response to the electron bombardment, but also away from them.

J. Kasparova; M. Karlicky; E. P. Kontar; R. A. Schwartz; B. R. Dennis

2005-08-30T23:59:59.000Z

433

The effects of surveillance on helping behavior in an inter-racial situation  

E-Print Network [OSTI]

interest was covaried with the occurrence of help, it did not significantly affect the z-score on the loglinear analysis, z = 1. 22 ns. MyeiIlance There was not a significant main effect for surveillance [F(1, 117) = 1. 51, ns] on the overall ANOVA...THE EFFECTS OF SURVEILLANCE ON HELPING BEHAVIOR IN AN INTER-RACIAL SITUATION A Thesis by KATHERINE ANN HANNULA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...

Hannula, Katherine Ann

2012-06-07T23:59:59.000Z

434

Undrained behavior of plate anchors subjected to general loading  

E-Print Network [OSTI]

This study presents a method for predicting the undrained behavior of plate anchors, including out-of-plane loading of simple plates and performance of suction embedded plate anchors (SEPLA). Three dimensional finite element models are used...

Yang, Ming

2010-01-14T23:59:59.000Z

435

Positive muon behavior in KCl with and without F centers  

Science Journals Connector (OSTI)

Positive muon behavior in KCl containing F centers has been studied. The muon spin depolarization rate showed a maximum near ... probably due to the fact that free positive muons are trapped by F centers in KCl. ...

Masao Doyama; T. Hatano; Y. Suzuki; R. Nakai; R. Yamamoto…

1984-01-01T23:59:59.000Z

436

Mechanical behavior of dip-brazed aluminum sandwich panels  

E-Print Network [OSTI]

An experimental study was carried out to determine the mechanical behavior of sandwich panels containing cellular cores of varying shape. Compression and four point bend tests were performed on sandwich panels with square ...

Hohmann, Brian P. (Brian Patrick)

2007-01-01T23:59:59.000Z

437

Thermal behavior simulation of Ni/MH battery  

Science Journals Connector (OSTI)

Thermal behavior of overcharged Ni/MH battery is studied with microcalorimeter. The battery is installed in a special device in ... Quantity of heat and heat capacity of the battery charged at different state of ...

DaHe Li; Kai Yang; Shi Chen; Feng Wu

2009-05-01T23:59:59.000Z

438

Commuting behaviors and exposure to air pollution in Montreal, Canada  

Science Journals Connector (OSTI)

AbstractBackground Vehicular traffic is a major source of outdoor air pollution in urban areas, and studies have shown that air pollution is worse during hours of commuting to and from work and school. However, it is unclear to what extent different commuting behaviors are a source of air pollution compared to non-commuters, and if air pollution exposure actually differs by the mode of commuting. This study aimed to examine the relationships between commuting behaviors and air pollution exposure levels measured by urinary 1-OHP (1-hydroxypyrene), a biomarker of exposure to polycyclic aromatic hydrocarbons (PAHs). Methods A cross-sectional study of 174 volunteers living in Montreal, 92 females and 82 males, aged 20 to 53 years was conducted in 2011. Each participant completed a questionnaire regarding demographic factors, commuting behaviors, home and workplace addresses, and potential sources of PAH exposure, and provided a complete first morning void urine sample for 1-OHP analysis. Multivariable general linear regression models were used to examine the relationships between different types of commuting and urinary 1-OHP levels. Results Compared to non-commuters, commuters traveling by foot or bicycle and by car or truck had a significantly higher urinary 1-OHP concentration in urine (p = 0.01 for foot or bicycle vs. non-commuters; p = 0.02 for car or truck vs. non-commuters); those traveling with public transportation and combinations of two or more types of modes tended to have an increased 1-OHP level in urine (p = 0.06 for public transportation vs. non-commuters; p = 0.05 for commuters with combinations of two or more types of modes vs. non-commuters). No significant difference in urinary 1-OHP variation was found by mode of commuting. Conclusion This preliminary study suggests that despite the mode of commuting, all types of commuting during rush hours increase exposure to air pollution as measured by a sensitive PAH metabolite biomarker, and mode of commuting did not explain exposure variation.

Qun Miao; Michèle Bouchard; Dongmei Chen; Mark W. Rosenberg; Kristan J. Aronson

2015-01-01T23:59:59.000Z

439

Development of SRC-I product analysis. Volume 2. Evaluation of analytical techniques for SRC-I characterization, recycle solvent studies, and product fractionation studies  

SciTech Connect (OSTI)

A data analysis was performed to determine the relationship between the Wilsonville Solvent Quality test result and SRC liquefaction process parameters. The data base studied covers the years 1979 to 1982, Wilsonville runs 133 to 234. Only process-defined material balance data sets were included to best represent steady-state operation. Each material balance period provided 48 variables from which common process conditions were selected by imposing a range of acceptable deviations from a norm, e.g., a reactor hydrogen pressure of 2000 +- 100 psi. Data for all variables vs. solvent quality were plotted, and in some cases variables were compared with each other to determine common trends, e.g. gas production vs. hydrogen consumption. The plotted data produced no discernible trends. Separating the data by coal type (mine location) and identifying common process conditions with coal types still provided no absolute correlations with solvent quality. However, the effect of the weight percent pyrite present in the feed coal produced a consistent trend. A coal containing more than 1.2% pyrite and less than 0.1% sulfate sulfur yielded results in which any one correlation would cluster about a central point. It was observed that, on average, Kentucky Fies and Pyro mine coal and Indiana V coal clustered together, while Kentucky Lafayette and Dotiki mine coals clustered together. These data point clusters for the variables tested were nearly independent of reactor pressure, space rate, and temperature. One unusual observation of all the data points, independent of process conditions, was that at each change of feed coal, the sum of hydrocarbon and heteroatom gas production was greatest for the first 30 days, after which gas production reached a steady state dependent on process conditions, primarily temperature.

Schweighardt, F.K.; Kingsley, I.S.; Cooper, F.E.; Kamzelski, A.Z.; Parees, D.M.

1983-09-01T23:59:59.000Z

440

Marine turtle auditory behavior  

Science Journals Connector (OSTI)

Auditory capacities of the Atlantic Loggerhead (Caretta c. caretta) were assessed to develop a sound repelling system to be used in dangerous areas. To estimate sensitivity auditory brain?stem responses (ABRs) were recorded in ten animals to clicks and tones (250 500 750 and 1000 Hz). Animals removed from water had electrodes implanted subcutaneously. Stimuli were presented to eardrum with a vibrator. Consistent responses occurred within the first 10 ms after stimulation not unlike that recorded in nonmarine forms. ABR waveforms increase in latency with stimulus attenuation. Prior to ABR recording sound?induced head movements were noted in most but not all animals. Sound?induced swimming was also observed. A flight response within the artificial environment of a small tank may not predict natural behavior hence animals will be placed in a saltwater pen and the experiments repeated with a sound source away from the animal. Finally animals fitted with transmitters will be released in the lower Chesapeake Bay. After settling into a selected area they will be approached by a moving sound projector to determine if this sound induces flight.

S. Moein; M. Lenhardt; D. Barnard; J. Keinath; J. Musick

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Dissolved gaseous mercury behavior in shallow water estuaries  

E-Print Network [OSTI]

DISSOLVED GASEOUS MERCURY BEHAVIOR IN SHALLOW WATER ESTUARIES A Thesis by CHARLES MELCHOR LANDIN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 2007 Major Subject: Oceanography DISSOLVED GASEOUS MERCURY BEHAVIOR IN SHALLOW WATER ESTUARIES A Thesis by CHARLES MELCHOR LANDIN Submitted to the Office of Graduate Studies of Texas A...

Landin, Charles Melchor

2008-10-10T23:59:59.000Z

442

Analysis of the causes of heavy aerosol pollution in Beijing, China: A case study with the WRF-Chem model  

Science Journals Connector (OSTI)

Abstract The causes and variability of a heavy haze episode in the Beijing region was analyzed. During the episode, the PM2.5 concentration reached a peak value of 450 ?g/kg on January 18, 2013 and rapidly decreased to 100 ?g/kg on January 19, 2013, characterizing a large variability in a very short period. This strong variability provides a good opportunity to study the causes of the haze formation. The in situ measurements (including surface meteorological data and vertical structures of the winds, temperature, humidity, and planetary boundary layer (PBL)) together with a chemical/dynamical regional model (WRF-Chem) were used for the analysis. In order to understand the rapid variability of the PM2.5 concentration in the episode, the correlation between the measured meteorological data (including wind speed, PBL height, relative humidity, etc.) and the measured particle concentration (PM2.5 concentration) was studied. In addition, two sensitive model experiments were performed to study the effect of individual contribution from local emissions and regional surrounding emissions to the heavy haze formation. The results suggest that there were two major meteorological factors in controlling the variability of the PM2.5 concentration, namely, surface wind speed and PBL height. During high wind periods, the horizontal transport of aerosol particles played an important role, and the heavy haze was formed when the wind speeds were very weak (less than 1 m/s). Under weak wind conditions, the horizontal transport of aerosol particles was also weak, and the vertical mixing of aerosol particles played an important role. As a result, the PBL height was a major factor in controlling the variability of the PM2.5 concentration. Under the shallow PBL height, aerosol particles were strongly confined near the surface, producing a high surface PM2.5 concentration. The sensitivity model study suggests that the local emissions (emissions from the Beijing region only) were the major cause for the heavy haze events. With only local emissions, the calculated peak value of the PM2.5 concentration was 350 ?g/kg, which accounted for 78% of the measured peak value (450 ?g/kg). In contrast, without the local emissions, the calculated peak value of the PM2.5 concentration was only 100 ?g/kg, which accounted for 22% of the measured peak value.

Hui He; Xuexi Tie; Qiang Zhang; Xiange Liu; Qian Gao; Xia Li; Yang Gao

2014-01-01T23:59:59.000Z

443

Human Behavior and Energy Use: Modeling the Relationships  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Human Behavior and Energy Use: Modeling the Relationships Human Behavior and Energy Use: Modeling the Relationships Speaker(s): Bin Shui Thomas Sanquist Date: July 29, 2009 - 12:00pm Location: 90-3122 This presentation summarizes the conceptual framework and some initial data analyses for a Laboratory Directed Research and Development project to develop models of the relationships between human behavior, energy use, climate change and national/international security. A brief history of social science in energy research is provided, followed by methods and data from an approach involving Consumer Lifestyle Analysis. Growth patterns in energy usage in the residential and personal travel sectors are illustrated, along with the indirect energy requirements to support that usage. General research needs in the area of behavior are discussed, some

444

Feasibility study and economic analysis of pumped hydro storage and battery storage for a renewable energy powered island  

Science Journals Connector (OSTI)

Abstract This study examined and compared two energy storage technologies, i.e. batteries and pumped hydro storage (PHS), for the renewable energy powered microgrid power supply system on a remote island in Hong Kong. The problems of energy storage for off-grid renewable energy were analyzed. The sizing methods and economic models were developed, and finally applied in the real project (case study). The results provide the most suitable energy storage scheme for local decision-makers. The two storage schemes were further divided into 4 options. Accordingly, the life-cycle costs (LCC), levelized costs for the renewable energy storage system (LCRES) and the LCC ratios between all options were calculated and compared. It was found that the employment of conventional battery (Option 2) had a higher LCC value than the advanced deep cycle battery (Option 1), indicating that using deep cycle batteries is more suitable for a standalone renewable power supply system. The pumped storage combined with battery bank option (Option 3) had only 55% LCC of that of Option 1, making this combined option more cost-competitive than the sole battery option. The economic benefit of pumped storage is even more significant in the case of purely pumped storage with a hydraulic controller (Option 4), with the lowest LCC among all options at 29–48% of Option 1. Sensitivity analysis demonstrates that PHS is even more cost competitive by controlling some adjustments such as increasing energy storage capacity and days of autonomy. Therefore, the renewable energy system coupled with pumped storage presents technically feasible opportunities and practical potential for continuous power supply in remote areas.

Tao Ma; Hongxing Yang; Lin Lu

2014-01-01T23:59:59.000Z

445

Wind speed and power density analysis based on Weibull and Rayleigh distributions (a case study: Firouzkooh county of Iran)  

Science Journals Connector (OSTI)

Abstract The present study aimed to analyze the wind speed data of Firouzkooh region. For this purpose, the wind speed data for a 3-h period measuring over a 10-year period (2001–2010) were analyzed to calculate and estimate the wind power generation potential. Similar trends of the wind speeds were seen in different years where the highest and the lowest mean wind speeds belonged to May 2010 and June 2002, respectively. The diurnal wind speed analysis demonstrated that the fastest winds blew from 6 am to 3 pm. Weibull and Rayleigh distribution functions were applied to find out the best fitting tool to the wind speed data. Results showed that Weibull and Rayleigh distribution functions can fit the actual values of wind speed well with almost the same coefficient of determination value (R2) of 0.97. The average values of wind power based on mean and root mean cube speed approaches were 203 and 248 W m?2 year?1, respectively indicating that Firouzkooh region stands in class 4 (which is a suitable area for wind turbine establishment). Finally, wind rose diagram revealed that the prevailing wind direction falls in the sector between 180° and 270° clockwise from North.

S.H. Pishgar-Komleh; A. Keyhani; P. Sefeedpari

2015-01-01T23:59:59.000Z

446

DRAFT DO NOT QUOTE Energy Prices and Energy Intensity in China: A Structural Decomposition Analysis and Econometrics Study  

E-Print Network [OSTI]

Since the start of its economic reforms in 1978, China's energy prices relative to other prices have increased. At the same time, its energy intensity, i.e., energy consumption per unit of Gross Domestic Product (GDP), has declined dramatically, by about 70%, in spite of increases in energy consumption. Is this just a coincidence? Or does a systematic relationship exist between energy prices and energy intensity? In this study, we examine whether and how China’s energy price changes affect its energy intensity trend during 1980-2002 at a macro level. We conduct the research by using two complementary economic models: the input-output-based structural decomposition analysis (SDA) and econometric regression models and by using a decomposition method of own-price elasticity of energy intensity. Findings include a negative own-price elasticity of energy intensity, a price-inducement effect on energyefficiency improvement, and a greater sensitivity (in terms of the reaction of energy intensity towards changes in energy prices) of the industry sector, compared to the overall economy. Analysts can use these results as a starting point for China's energy and carbon

Xiaoyu Shi; Karen R. Polenske; Xiaoyu Shi; Karen R. Polenske

2005-01-01T23:59:59.000Z

447

Phase behavior of polymers and monomers  

E-Print Network [OSTI]

perspective. Objective The objective of this study is to investigate the phase behavior of monomer- solvent and copolymer-solvent mixtures at elevated pressures. Supercritical ethylene will be the solvent used throughout the experiment to simulate... phase region within the reactor. The transition of the polymers from a single phase solution in the ethylene supercritical fluid solvent into two phases is referred to as the "cloud point. " Phase diagrams produced from the pressure and temperature...

Purifoy, Jonathan Patrick

1998-01-01T23:59:59.000Z

448

Pressure analysis for horizontal wells  

SciTech Connect (OSTI)

This paper presents horizontal-well test design and interpretation methods. Analytical solutions are developed that can be handled easily by a desktop computer to carry out design as well as interpretation with semilog and log-log analysis. These analytical solutions point out the distinctive behavior of horizontal wells: (1) at early time, there is a circular radial flow in a vertical plane perpendicular to the well, and (2) at late time, there is a horizontal pseudoradial flow. Each type of flow is associated with a semilog straight line to which semilog analysis has to be adapted. The horizontal pseudoradial flow takes into account a pseudoskin depending on system geometry, which is a priori defined and estimated. Practical time criteria are proposed to determine the beginning and the end of each type of flow and to provide a guide to semilog analysis and well test design. The authors study the behavior of uniform-flux or infinite-conductivity horizontal wells, with wellbore storage and skin. The homogeneous reservoir is infinite or limited by impermeable or constant-pressure boundaries. A method is also outlined to transform all our solutions for homogeneous reservoirs into corresponding solutions for double-porosity reservoirs.

Davlau, F.; Mouronval, G.; Bourdarot, G.; Curutchet, P.

1988-12-01T23:59:59.000Z

449

Fission product transport and behavior during two postulated loss-of-flow transients in the Advanced Test Reactor  

SciTech Connect (OSTI)

The fission product behavior during two postulated loss-of-flow accidents (leading to high- and low-pressure core degradations) in the Advanced Test Reactor (ATR) has been analyzed. These transients are designated ATR transients LCP 15 (high pressure) and LPP9 (low pressure). Normally, transients of this nature would be easily mitigated using existing safety systems and procedures. In these analyses, failure of these safety systems was assumed so that core degradation and fission product release could be studied. A probabilistic risk analysis was performed that indicated that the probability of occurrence for these two transients is on the order of 10[sup [minus]5] and 10[sup [minus]7] per reactor year for LCP15 and LPP9, respectively. The fission product behavior analysis included calculations of the gaseous and highly volatile fission product (xenon, krypton, cesium, iodine, and tellurium) inventories in the fuel before accident initiation, release of the fission products from the fuel into the reactor vessel during core melt, the probable chemical forms, and transport of the fission products from the core through the reactor vessel and existing piping to the confinement. In addition to a base-case analysis of fission product behavior, a series of analyses was performed to determine the sensitivity of fission product release to several parameters including steam flow rate, (structural) aluminum oxidation, and initial aerosol size. The base-case analyses indicate that the volatile fission products (excluding the noble gases) will be transported as condensed species on zinc aerosols.

Adams, J.P.; Carboneau, M.L.; Hagrman, D.L. (Idaho National Engineering Lab. EG and G Idaho, Idaho Falls, ID (United States))

1993-07-01T23:59:59.000Z

450

Analysis of Fish Response to Flows in the 1991 Pasco Flume Experiments  

E-Print Network [OSTI]

1 Analysis of Fish Response to Flows in the 1991 Pasco Flume Experiments by James J. Anderson. The hypothesis of the study is that low fish guidance efficiency (FGE) at Columbia River dams may, in part, be due to fish diving when they encounter changes in water velocities. This behavior would cause fish

Washington at Seattle, University of

451

Computer model study: An analysis of the Nephew/Spore model for determining costs of cost of coal mining in Appalachia. Final report  

SciTech Connect (OSTI)

The study determined whether the model developed to study Costs of Coal Surface Mining and Reclamation in Appalachia was capable of being responsive to the needs of the Office of Surface Mining for projecting the extraction costs of coal in support of the Small Operator Assistance Program. The study analysis validated the model and adapted the model to specific small operator needs in terms of user flexibility. Based on the analysis and model enhancements approach used by the study, three primary recommendations are made: Validate the model with live cost and performance data to determine potential viability for small operator assistance; Enhance the model to provide greater flexibility and ease of user support; and field test the model through regional offices of the Small Operator Assistance Program.

Nephew, E.A.; Spore, R.L.

1980-06-06T23:59:59.000Z

452

Final report to the National Science Foundation for the period July 1, 1978 to June 30, 1980 of project on cartel behavior and exhaustible resource supply : a case study of the world oil market.  

E-Print Network [OSTI]

The M.I.T. World Oil Project has been developing improved methods and data for analysis of the future course of the world oil market. Any forecast of this market depends on analysis of the likely demand for oil imports by ...

M.I.T. World Oil Project.

1981-01-01T23:59:59.000Z

453

On spurious behavior of CFD simulations  

SciTech Connect (OSTI)

Spurious behavior in underresolved grids and/or semi-implicit temporal discretizations for four computational fluid dynamics (CFD) simulations are studied. The numerical simulations consist of (a) a 1-D chemically relaxed nonequilibrium model, (b) the direct numerical simulation (DNS) of 2-D incompressible flow over a backward facing step, (c) a loosely-coupled approach for a 2-D fluid-structure interaction, and (d) a 3-D compressible unsteady flow simulation of vortex breakdown in delta wings. Using knowledge from dynamical systems theory, various types of spurious behaviors that are numerical artifacts were systematically identified. These studies revealed the various possible dangers of misinterpreting numerical simulation of realistic complex flows that are constrained by the available computing power. In large scale computations underresolved grids, semi-implicit procedures, loosely-coupled implicit procedures, and insufficiently long time integration in DNS are most often unavoidable. Consequently, care must be taken in both computation and in interpretation of the numerical data. The results presented confirm the important role that dynamical systems theory can play in the understanding of the nonlinear behavior of numerical algorithms and in aiding the identification of the sources of numerical uncertainties in CFD.

Yee, H.C. [National Aeronautics and Space Administration, Moffett Field, CA (United States). Ames Research Center; Torczynski, J.R. [Sandia National Labs., Albuquerque, NM (United States); Morton, S.A.; Visbal, M.R. [Wright Lab., Wright-Patterson AFB, OH (United States); Sweby, P.K. [Univ. of Reading (United Kingdom)

1997-05-01T23:59:59.000Z

454

Comparative Study of Sample Preparation Techniques Coupled to GC for the Analysis of Halogenated Acetic Acids (HAAs) Acids in Tap Water  

Science Journals Connector (OSTI)

......SPE was studied as a possible alternative to LLE for the analysis of...was passed through the SPE car- tridge without a vacuum system...ization conditions were: ion energy 70 eV and mass range 10 to...dure can be proposed as an alternative accu- rate method for the......

Sadia Waseem; Md. Pauzi Abdullah

2010-03-01T23:59:59.000Z

455

A study of the ground and excited states of Al3 and Al3 Computational analysis of the 488 nm anion photoelectron spectrum  

E-Print Network [OSTI]

A study of the ground and excited states of Al3 and Al3 - . II. Computational analysis of the 488 nm anion photoelectron spectrum and a reconsideration of the Al3 bond dissociation energy Stephen R-lying excited electronic states of Al3 - and Al3 and compared with the available spectroscopic data

Truhlar, Donald G

456

An observational study of the South Pacific Convergence Zone using satellite and model re-analysis data  

E-Print Network [OSTI]

Satellite derived wind, rain rate and sea surface temperature data combined with NCEP analysis data are used to examine the structure of the South Pacific Convergence Zone (SPCZ) during La Nina conditions. Annual means indicate that the axes...

Cocks, Stephen Brenton

2004-09-30T23:59:59.000Z

457

A Study on Uncertainty Analysis of Safety Systems of Advanced Heavy Water Reactor using Fuzzy Set Theory  

Science Journals Connector (OSTI)

Inherent to any reliability calculation is a degree of uncertainty in ... ) are also being used in the risk analysis for quantifying the basic event uncertainty and ... of probabilistic and fuzzy methodologies fo...

Rao K. Durga; V. Gopika; M. H. Prasad…

2004-01-01T23:59:59.000Z

458

Equilibrium analysis of masonry domes  

E-Print Network [OSTI]

This thesis developed a new method to analyze the structural behavior of masonry domes: the modified thrust line analysis. This graphical-based method offers several advantages to existing methods. It is the first to account ...

Lau, Wanda W

2006-01-01T23:59:59.000Z

459

Social Network Discovery from Multiple Log Data through a Behavior Model  

Science Journals Connector (OSTI)

This paper proposes a new framework for inferring social networks of smart phone users from log data on web browsing and mobile application execution. In the framework, a behavior model is built by taking into account the effects of homophily, other ... Keywords: social network, log analysis, behavior model

Tomonobu Ozaki; Minoru Etoh

2012-03-01T23:59:59.000Z

460

Phase behavior and minimum miscibility pressure for nitrogen miscible displacement  

SciTech Connect (OSTI)

Nitrogen (N/sub 2/) has been successfully used as a displacing gas for light oil recovery. The information of the minimum miscibility pressure (MMP) and phase behavior for N/sub 2/ with light oils is important for the screening of this oil recovery method. Phase behavior studies were performed on N/sub 2/-hydrocarbon mixtures at high pressure (above 4,000 psia) to help interpret the results of the slim tube experiments. Synthetic oil systems of methane + n-butane (nC/sub 4/) + n-decane (nC/sub 10/) were studied to determine the approximate phase behavior of crude oil with nitrogen and to investigate the effect of the presence of methane (C/sub 1/) on phase behavior and the MMP of N/sub 2/. The resulting phase diagram shows that methane can lower the miscibility pressure of nitrogen.

Chung, F.T.H.; Llave, F.M.; Louvier, R.W.; Hudgins, D.A.

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "behavior study analysis" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

A comparative study of extraction methods for analysis of chloride in plant tissue by means of the Cotlove chloridometer  

E-Print Network [OSTI]

of dried, pulverized mesh tissue. The sample is then stirr ed intermittently for at least five minutes at room temperature (37). It is recommended that the extract be analyzed by potentiometric titration using a silver billet electrode. Hanna (26... analysis indicates four methods which are most commonly used. These include Mohr and Volhard's methods of volumetric analysis (1, 8, 32), potentiometric titration using a silver or platinum electrode (6, 37), potentiometric titration using an ion...

Norris, Richard Eugene

1976-01-01T23:59:59.000Z

462

Fundamental Scratch Behavior of Styrene-Acrylonitrile Random Copolymers  

E-Print Network [OSTI]

, the mechanical properties of polymer nanocomposites were greatly improved over those of the neat systems and studies in polymer nanocomposite scratch behavior followed suit [47, 69, 75 - 77]. In a study on nanoclay-reinforced PP and PE, Yuan et al. found..., the mechanical properties of polymer nanocomposites were greatly improved over those of the neat systems and studies in polymer nanocomposite scratch behavior followed suit [47, 69, 75 - 77]. In a study on nanoclay-reinforced PP and PE, Yuan et al. found...

Browning, Robert Lee

2011-10-21T23:59:59.000Z

463

An analysis of the pull strength behaviors of fine-pitch, flip chip solder interconnections using a Au-Pt-Pd thick film conductor on Low-Temperature, Co-fired Ceramic (LTCC) substrates.  

SciTech Connect (OSTI)

The assembly of the BDYE detector requires the attachment of sixteen silicon (Si) processor dice (eight on the top side; eight on the bottom side) onto a low-temperature, co-fired ceramic (LTCC) substrate using 63Sn-37Pb (wt.%, Sn-Pb) in a double-reflow soldering process (nitrogen). There are 132 solder joints per die. The bond pads were gold-platinum-palladium (71Au-26Pt-3Pd, wt.%) thick film layers fired onto the LTCC in a post-process sequence. The pull strength and failure modes provided the quality metrics for the Sn-Pb solder joints. Pull strengths were measured in both the as-fabricated condition and after exposure to thermal cycling (-55/125 C; 15 min hold times; 20 cycles). Extremely low pull strengths--referred to as the low pull strength phenomenon--were observed intermittently throughout the product build, resulting in added program costs, schedule delays, and a long-term reliability concern for the detector. There was no statistically significant correlation between the low pull strength phenomenon and (1) the LTCC 'sub-floor' lot; (2) grit blasting the LTCC surfaces prior to the post-process steps; (3) the post-process parameters; (4) the conductor pad height (thickness); (5) the dice soldering assembly sequence; or (5) the dice pull test sequence. Formation of an intermetallic compound (IMC)/LTCC interface caused by thick film consumption during either the soldering process or by solid-state IMC formation was not directly responsible for the low-strength phenomenon. Metallographic cross sections of solder joints from dice that exhibited the low pull strength behavior, revealed the presence of a reaction layer resulting from an interaction between Sn from the molten Sn-Pb and the glassy phase at the TKN/LTCC interface. The thick film porosity did not contribute, explicitly, to the occurrence of reaction layer. Rather, the process of printing the very thin conductor pads was too sensitive to minor thixotropic changes to ink, which resulted in inconsistent proportions of metal and glassy phase particles present during the subsequent firing process. The consequences were subtle, intermittent changes to the thick film microstructure that gave rise to the reaction layer and, thus, the low pull strength phenomenon. A mitigation strategy would be the use of physical vapor deposition (PVD) techniques to create thin film bond pads; this is multi-chip module, deposited (MCM-D) technology.

Uribe, Fernando R.; Kilgo, Alice C.; Grazier, John Mark; Vianco, Paul Thomas; Zender, Gary L.; Hlava, Paul Frank; Rejent, Jerome Andrew

2008-09-01T23:59:59.000Z

464

Chaotic behavior of a random laser with static disorder  

SciTech Connect (OSTI)

We report on an experimental and numerical study of chaotic behavior in random lasers. The complex emission spectra from a disordered amplifying material with static disorder are investigated in a configuration with controlled, stable experimental conditions. It is found that, upon repeated identical excitation, the emission spectra are distinct and uncorrelated. This behavior can be understood in terms of strongly coupled modes that are triggered by spontaneous emission, and is expected to play an important role in most pulsed random lasers.

Mujumdar, Sushil; Tuerck, Volker; Torre, Renato; Wiersma, Diederik S. [European Laboratory for Non-linear Spectroscopy, INFM-BEC, and Phys. Dept., University of Florence, Sesto Fiorentino (Italy)

2007-09-15T23:59:59.000Z

465

Off-energy-shell behavior of realistic potential models  

SciTech Connect (OSTI)

The behavior of the fully-off-the-energy-shell T matrices for the Reid-soft-core and Paris-80 potentials are studied for a variety of partial waves, both uncoupled and coupled. Although the potentials have qualitatively different structures in both coordinate space and momentum space, the resulting off-energy-shell behavior is very similar in the range of energy and momentum relevant to low and medium energy nuclear physics.

Redish, E.F.; Stricker-Bauer, K.

1987-08-01T23:59:59.000Z

466

Nutritional, physiological, and behavioral effects of confinement on lambs  

E-Print Network [OSTI]

NUTRITIONAL, PHYSIOLOGICAL, AND BEHAVIORAL EFFECTS OF CONFINEMENT ON LAMBS A Thesis by GABRIELLE MARIA KAPP Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree MASTER... OF SCIENCE May 1995 Major Subject: Animal Science NUTRITIONAL, PHYSIOLOGICAL, AND BEHAVIORAL EFFECTS OF CONFINEMENT ON LAMBS A Thesis by GABRIELLE MARIA KAPP Submitted to Texas A@M University in partial fulfillment of the requirements for the degree...

Kapp, Gabrielle Maria

1995-01-01T23:59:59.000Z

467

The Validation of a Situational Judgment Test to Measure Leadership Behavior.  

E-Print Network [OSTI]

??Assessment centers, although useful for assessing behaviors and competencies associated with a targeted construct, can be low in economic utility. The current study sought to… (more)

Grant, Kaci Lyn

2009-01-01T23:59:59.000Z

468

Influence of addition of nanoclay on the mechanical behavior of polymer nanocomposite  

Science Journals Connector (OSTI)

The mechanical behavior of polymer nanocomposites, which containing epoxy resin as matrix and carbon fiber, glass fiber, nanoclay as reinforcements have been studied. The composites ... Electron Microscope (SEM) ...

T. Sakthivel; S. Balasivanandha Prabu

2008-04-01T23:59:59.000Z

469

DEFORMATION BEHAVIOR OF A535 ALUMINUM ALLOY UNDER DIFFERENT STRAIN RATE AND TEMPERATURE CONDITIONS.  

E-Print Network [OSTI]

??Aluminum alloys are a suitable substitution for heavy ferrous alloys in automobile structures. The purpose of this study was to investigate the flow stress behavior… (more)

Rezaei, Mojgan

2015-01-01T23:59:59.000Z

470

A Search for Chaotic Behavior in Stratospheric Variability: Comparison between the Northern and Southern Hemispheres  

Science Journals Connector (OSTI)

Southern Hemisphere (SH) stratospheric variability is investigated with respect to chaotic behavior using time series from three different variables extracted from four different reanalysis products. The results are compared with the same analysis ...

Gualtiero Badin; Daniela I.V. Domeisen

2014-12-01T23:59:59.000Z

471

Threshold Stress Creep Behavior of Alloy 617 at Intermediate Temperatures  

SciTech Connect (OSTI)

Creep of Alloy 617, a solid solution Ni-Cr-Mo alloy, was studied in the temperature range of 1023 K to 1273 K (750 °C to 1000 °C). Typical power-law creep behavior with a stress exponent of approximately 5 is observed at temperatures from 1073 K to 1273 K (800 °C to 1000 °C). Creep at 1023 K (750 °C), however, exhibits threshold stress behavior coinciding with the temperature at which a low volume fraction of ordered coherent y' precipitates forms. The threshold stress is determined experimentally to be around 70 MPa at 1023 K (750 °C) and is verified to be near zero at 1173 K (900 °C)—temperatures directly correlating to the formation and dissolution of y' precipitates, respectively. The y' precipitates provide an obstacle to continued dislocation motion and result in the presence of a threshold stress. TEM analysis of specimens crept at 1023 K (750 °C) to various strains, and modeling of stresses necessary for y' precipitate dislocation bypass, suggests that the climb of dislocations around the y' precipitates is the controlling factor for continued deformation at the end of primary creep and into the tertiary creep regime. As creep deformation proceeds at an applied stress of 121 MPa and the precipitates coarsen, the stress required for Orowan bowing is reached and this mechanism becomes active. At the minimum creep rate at an applied stress of 145 MPa, the finer precipitate size results in higher Orowan bowing stresses and the creep deformation is dominated by the climb of dislocations around the y' precipitates.

J.K. Benz; L.J. Carroll; J.K. Wright; R.N. Wright; T. Lillo

2014-06-01T23:59:59.000Z

472

Effects of Data Resolution and Human Behavior on Large Scale Evacuation Simulations  

E-Print Network [OSTI]

Traffic Analysis Zones (TAZ) based macroscopic simulation studies are mostly applied in evacuation planning and operation areas. The large size in TAZ and aggregated information of macroscopic simulation underestimate the real evacuation performance. To take advantage of the high resolution demographic data LandScan USA (the zone size is much smaller than TAZ) and agent-based microscopic traffic simulation models, many new problems appeared and novel solutions are needed. A series of studies are conducted using LandScan USA Population Cells (LPC) data for evacuation assignments with different network configurations, travel demand models, and travelers compliance behavior. First, a new Multiple Source Nearest Destination Shortest Path (MSNDSP) problem is defined for generating Origin Destination matrix in evacuation assignments when using LandScan dataset. Second, a new agent-based traffic assignment framework using LandScan and TRANSIMS modules is proposed for evacuation planning and operation study. Impact a...

Lu, Wei

2015-01-01T23:59:59.000Z

473

Use of 2nd and 3rd Level Correlation Analysis for Studying Degradation in Polycrystalline Thin-Film Solar Cells  

SciTech Connect (OSTI)

The correlation of stress-induced changes in the performance of laboratory-made CdTe solar cells with various 2nd and 3rd level metrics is discussed. The overall behavior of aggregated data showing how cell efficiency changes as a function of open-circuit voltage (Voc), short-circuit current density (Jsc), and fill factor (FF) is explained using a two-diode, PSpice model in which degradation is simulated by systematically changing model parameters. FF shows the highest correlation with performance during stress, and is subsequently shown to be most affected by shunt resistance, recombination and in some cases voltage-dependent collection. Large decreases in Jsc as well as increasing rates of Voc degradation are related to voltage-dependent collection effects and catastrophic shunting respectively. Large decreases in Voc in the absence of catastrophic shunting are attributed to increased recombination. The relevance of capacitance-derived data correlated with both Voc and FF is discussed.

Albin, D. S.; del Cueto, J. A.; Demtsu, S. H.; Bansal, S.

2011-03-01T23:59:59.000Z

474

Arsenic species separation by IELC-ICP/OES: Arsenocholine behavior  

SciTech Connect (OSTI)

In the literature an increasing interest is observed in developing methods to determine arsenobetaine, arsenocholine and related compounds in sea food and in reference materials. The separation conditions and quantification of As(III), As(V), monomethylarsenate (MMA), dimethylarsinate (DMA), arsenobetaine (AsBet) and arsenocholine (AsChol) are studied by Liquid Chromatography (LC) coupled directly to an Inductively Coupled Plasma Optical Emission Spectroscopy (ICP/OES) system. The separation conditions are optimized to improve the resolution of the six arsenic species. Arsenocholine shows a particular pattern of behavior when phosphate is used as eluent: two peaks are observed in the chromatogram, thus a systematic study assaying different pH and concentration of phosphate is carried out to improve resolution and analysis time when the six arsenic compounds are analyzed in a mixture. Boric acid as mobile phase avoids the splitting of the arsenocholine peak and leads to a good separation of the six arsenic compounds. Detection limits are established for the six arsenic species.

Rubio, R.; Peralta, I.; Alberti, J.; Rauret, G. (Univ. de Barcelona (Spain))

1993-01-01T23:59:59.000Z

475

Selected Area Fishery Evaluation Project Economic Analysis Study Final Report, Final Draft Revision 4: November 10, 2006.  

SciTech Connect (OSTI)

The purpose of this Study is to provide an economic review of current and proposed changes to the Select Area Fishery Evaluation Project (SAFE or Project). The Study results are the information requested in comments made on the Project by a joint review dated March 2005 by the Northwest Power and Conservation Council (NPCC) Independent Scientific Review Panel (ISRP) and Independent Economic Analysis Board (IEAB). North et al. (2006) addressed technical questions about operations and plans, and this report contains the response information for comments concerning Project economics. This report can be considered an economic feasibility review meeting guidelines for cost-effective analysis developed by the IEAB (2003). It also contains other economic measurement descriptions to illustrate the economic effects of SAFE. The SAFE is an expansion of a hatchery project (locally called the Clatsop Economic Development Council Fisheries Project or CEDC) started in 1977 that released an early run coho (COH) stock into the Youngs River. The Youngs River entrance to the Columbia River at River Mile 12 is called Youngs Bay, which is located near Astoria, Oregon. The purpose of the hatchery project was to provide increased fishing opportunities for the in-river commercial fishing gillnet fleet. Instead of just releasing fish at the hatchery, a small scale net pen acclimation project in Youngs Bay was tried in 1987. Hirose et al. (1998) found that 1991-1992 COH broodstock over-wintered at the net pens had double the smolt-to-adult return rate (SAR) of traditional hatchery release, less than one percent stray rates, and 99 percent fishery harvests. It was surmised that smolts from other Columbia River hatcheries could be hauled to the net pens for acclimation and release to take advantage of the SAR's and fishing rates. Proposals were tendered to Bonneville Power Administration (BPA) and other agencies to fund the expansion for using other hatcheries smolts and other off-channel release sites. The BPA, who had been providing funds to the Project since 1982, greatly increased their financial participation for the experimental expansion of the net pen operations in 1993. Instead of just being a funding partner in CEDC operations, the BPA became a major financing source for other hatchery production operations. The BPA has viewed the 10 plus years of funding since then as an explorative project with two phases: a 'research' phase ending in 1993, and a 'development' phase ending in 2006. The next phase is referred to in proposals to BPA for continued funding as an 'establishment' phase to be started in 2007. There are three components of SAFE: (1) The CEDC owns and operates the net pens in the Columbia River estuary on the Oregon side. The CEDC also owns and operates a hatchery on the South Fork Klaskanine River. (2) There are many other hatcheries contributing smolts to the net pen operations. The present suite of hatcheries are operated by the Washington Department of Fish and Wildlife (WDFW) and Oregon Department of Fish and Wildlife (ODFW). The WDFW owns and operates the net pens at Deep River on the Washington side of the Columbia River. (3) The monitoring and evaluation (M&E) responsibilities are performed by employees of WDFW and ODFW. BPA provides funding for all three components as part of NPCC Project No. 199306000. The CEDC and other contributing hatcheries have other sources of funds that also support the SAFE. BPA's minor share (less than 10 percent) of CEDC funding in 1982 grew to about 55 percent in 1993 with the beginning of the development phase of the Project. The balance of the CEDC budget over the years has been from other federal, state, and local government programs. It has also included a 10 percent fee assessment (five percent of ex-vessel value received by harvesters plus five percent of purchase value made by processors) on harvests that take place in off-channel locations near the release sites. The CEDC total annual budget in the last several years has been in the $600 to $700 thousand range. The Project over

Bonneville Power Administration; Washington Department of Fish and Wildlife; Oregon Department of Fish and Wildlife

2006-11-01T23:59:59.000Z

476

Retina Image Analysis and Ocular Telehealth: The Oak Ridge National Laboratory-Hamilton Eye Institute Case Study  

SciTech Connect (OSTI)

Automated retina image analysis has reached a high level of maturity in recent years, and thus the question of how validation is performed in these systems is beginning to grow in importance. One application of retina image analysis is in telemedicine, where an automated system could enable the automated detection of diabetic retinopathy and other eye diseases as a low-cost method for broad-based screening. In this work we discuss our experiences in developing a telemedical network for retina image analysis, including our progression from a manual diagnosis network to a more fully automated one. We pay special attention to how validations of our algorithm steps are performed, both using data from the telemedicine network and other public databases.

Karnowski, Thomas Paul [ORNL; Giancardo, Luca [ORNL; Li, Yaquin [University of Tennessee, Knoxville (UTK); Tobin Jr, Kenneth William [ORNL; Chaum, Edward [University of Tennessee, Knoxville (UTK)

2013-01-01T23:59:59.000Z

477

Thermal-fluid and electrochemical modeling and performance study of a planar solid oxide electrolysis cell : analysis on SOEC resistances, size, and inlet flow conditions.  

SciTech Connect (OSTI)

Argonne National Laboratory and Idaho National Laboratory researchers are analyzing the electrochemical and thermal-fluid behavior of solid oxide electrolysis cells (SOECs) for high temperature steam electrolysis using computational fluid dynamics (CFD) techniques. The major challenges facing commercialization of steam electrolysis technology are related to efficiency, cost, and durability of the SOECs. The goal of this effort is to guide the design and optimization of performance for high temperature electrolysis (HTE) systems. An SOEC module developed by FLUENT Inc. as part of their general CFD code was used for the SOEC analysis by INL. ANL has developed an independent SOEC model that combines the governing electrochemical mechanisms based on first principals to the heat transfer and fluid dynamics in the operation of SOECs. The ANL model was embedded into the commercial STAR-CD CFD software, and is being used for the analysis of SOECs by ANL. The FY06 analysis performed by ANL and reported here covered the influence of electrochemical properties, SOEC component resistances and their contributing factors, SOEC size and inlet flow conditions, and SOEC flow configurations on the efficiency and expected durability of these systems. Some of the important findings from the ANL analysis are: (1) Increasing the inlet mass flux while going to larger cells can be a compromise to overcome increasing thermal and current density gradients while increasing the cell size. This approach could be beneficial for the economics of the SOECs; (2) The presence of excess hydrogen at the SOEC inlet to avoid Ni degradation can result in a sizeable decrease in the process efficiency; (3) A parallel-flow geometry for SOEC operation (if such a thing be achieved without sealing problems) yields smaller temperature gradients and current density gradients across the cell, which is favorable for the durability of the cells; (4) Contact resistances can significantly influence the total cell resistance and cell temperatures over a large range of operating potentials. Thus it is important to identify and avoid SOEC stack conditions leading to such high resistances due to poor contacts.

Yildiz, B.; Smith, J.; Sofu, T.; Nuclear Engineering Division

2008-06-25T23:59:59.000Z

478