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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

applied systems analysis: Topics by E-print Network  

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

Evgeny Katz 2011-10-08 7 A macro-micro system architecture analysis framework applied to Smart Grid meter data management systems by Sooraj Prasannan. MIT - DSpace Summary: This...

2

Structural Equation Modelling for Causal Analysis Applied to Transport Systems  

E-Print Network [OSTI]

barrier (SBA), fault tree (FTA) and failure mode and effect analysis (FMEA) into one method. Our approach Analysis (FTA), Failure Mode and Effect Analysis (FMEA), Event Tree Analysis (ETA) or Safety Barrier]). The probably most familiar methods FTA and FMEA are widely used in industry due to their intuitive

Schlingloff, Holger

3

Layer of protection analysis applied to ammonia refrigeration systems  

E-Print Network [OSTI]

Ammonia refrigeration systems are widely used in industry. Demand of these systems is expected to increase due to the advantages of ammonia as refrigerant and because ammonia is considered a green refrigerant. Therefore, it is important to evaluate...

Zuniga, Gerald Alexander

2009-05-15T23:59:59.000Z

4

Matrix analysis applied to the equivalent circuits of ?, †, and o-components of three-phase systems  

E-Print Network [OSTI]

LIBRARY i Ii R COLLEGE OF IEXAO MATlUX ANALYSIS APPLIED TO THE EQUIVALENT CIRCUITS OF , P, AND 0 COMPONENTS OF THREE-PHASE SYSTEMS A Theeie MARSHALL CHUAN YUNG KUO b ~ Submitted to the Graduate School of the Agricnltaral and Mechaaical... College of Tenas ln partial fnlfillment of the reqniremente for the degree of MASTER OF SCIENCE May 1958 Ms(or Sub)ect: Electrical Engineering LIBRARY A 4 M COLLEGE OF TEXAS MATRIX ANALYSIS APPLIED TO THE EQUIVALENT CIRCUITS OF g, p, AND 0...

Kuo, Marshall Chuan Yung

1958-01-01T23:59:59.000Z

5

A macro-micro system architecture analysis framework applied to Smart Grid meter data management systems by Sooraj Prasannan.  

E-Print Network [OSTI]

This thesis proposes a framework for architectural analysis of a system at the Macro and Micro levels. The framework consists of two phases -- Formulation and Analysis. Formulation is made up of three steps -- Identifying ...

Prasannan, Sooraj

2010-01-01T23:59:59.000Z

6

Multi-attribute criteria applied to electric generation energy system analysis LDRD.  

SciTech Connect (OSTI)

This report began with a Laboratory-Directed Research and Development (LDRD) project to improve Sandia National Laboratories multidisciplinary capabilities in energy systems analysis. The aim is to understand how various electricity generating options can best serve needs in the United States. The initial product is documented in a series of white papers that span a broad range of topics, including the successes and failures of past modeling studies, sustainability, oil dependence, energy security, and nuclear power. Summaries of these projects are included here. These projects have provided a background and discussion framework for the Energy Systems Analysis LDRD team to carry out an inter-comparison of many of the commonly available electric power sources in present use, comparisons of those options, and efforts needed to realize progress towards those options. A computer aid has been developed to compare various options based on cost and other attributes such as technological, social, and policy constraints. The Energy Systems Analysis team has developed a multi-criteria framework that will allow comparison of energy options with a set of metrics that can be used across all technologies. This report discusses several evaluation techniques and introduces the set of criteria developed for this LDRD.

Kuswa, Glenn W.; Tsao, Jeffrey Yeenien; Drennen, Thomas E.; Zuffranieri, Jason V.; Paananen, Orman Henrie; Jones, Scott A.; Ortner, Juergen G. (DLR, German Aerospace, Cologne); Brewer, Jeffrey D.; Valdez, Maximo M.

2005-10-01T23:59:59.000Z

7

Energy analysis of facade-integrated photovoltaic systems applied to UAE commercial buildings  

SciTech Connect (OSTI)

Developments in the design and manufacture of photovoltaic cells have recently been a growing concern in the UAE. At present, the embodied energy pay-back time (EPBT) is the criterion used for comparing the viability of such technology against other forms. However, the impact of PV technology on the thermal performance of buildings is not considered at the time of EPBT estimation. If additional energy savings gained over the PV system life are also included, the total EPBT could be shorter. This paper explores the variation of the total energy of building integrated photovoltaic systems (BiPV) as a wall cladding system applied to the UAE commercial sector and shows that the ratio between PV output and saving in energy due to PV panels is within the range of 1:3-1:4. The result indicates that for the southern and western facades in the UAE, the embodied energy pay-back time for photovoltaic system is within the range of 12-13 years. When reductions in operational energy are considered, the pay-back time is reduced to 3.0-3.2 years. This study comes to the conclusion that the reduction in operational energy due to PV panels represents an important factor in the estimation of EPBT. (author)

Radhi, Hassan [Architectural Engineering Department, UAE University, Al-ain (United Arab Emirates)

2010-12-15T23:59:59.000Z

8

6.041 / 6.431 Probabilistic Systems Analysis and Applied Probability, Spring 2005  

E-Print Network [OSTI]

This course is offered both to undergraduates (6.041) and graduates (6.431), but the assignments differ. 6.041/6.431 introduces students to the modeling, quantification, and analysis of uncertainty. Topics covered include: ...

Bertsekas, Dimitri

9

Applying epoch-era analysis for homeowner selection of distributed generation power systems  

E-Print Network [OSTI]

The current shift from centralized energy generation to a more distributed model has opened a number of choices for homeowners to provide their own power. While there are a number of systems to purchase, there are no tools ...

Piña, Alexander L

2014-01-01T23:59:59.000Z

10

Simulating Nationwide Pandemics: Applying the Multi-scale Epidemiologic Simulation and Analysis System to Human Infectious Diseases  

SciTech Connect (OSTI)

This study uses the Multi-scale Epidemiologic Simulation and Analysis (MESA) system developed for foreign animal diseases to assess consequences of nationwide human infectious disease outbreaks. A literature review identified the state of the art in both small-scale regional models and large-scale nationwide models and characterized key aspects of a nationwide epidemiological model. The MESA system offers computational advantages over existing epidemiological models and enables a broader array of stochastic analyses of model runs to be conducted because of those computational advantages. However, it has only been demonstrated on foreign animal diseases. This paper applied the MESA modeling methodology to human epidemiology. The methodology divided 2000 US Census data at the census tract level into school-bound children, work-bound workers, elderly, and stay at home individuals. The model simulated mixing among these groups by incorporating schools, workplaces, households, and long-distance travel via airports. A baseline scenario with fixed input parameters was run for a nationwide influenza outbreak using relatively simple social distancing countermeasures. Analysis from the baseline scenario showed one of three possible results: (1) the outbreak burned itself out before it had a chance to spread regionally, (2) the outbreak spread regionally and lasted a relatively long time, although constrained geography enabled it to eventually be contained without affecting a disproportionately large number of people, or (3) the outbreak spread through air travel and lasted a long time with unconstrained geography, becoming a nationwide pandemic. These results are consistent with empirical influenza outbreak data. The results showed that simply scaling up a regional small-scale model is unlikely to account for all the complex variables and their interactions involved in a nationwide outbreak. There are several limitations of the methodology that should be explored in future work including validating the model against reliable historical disease data, improving contact rates, spread methods, and disease parameters through discussions with epidemiological experts, and incorporating realistic behavioral assumptions.

Dombroski, M; Melius, C; Edmunds, T; Banks, L E; Bates, T; Wheeler, R

2008-09-24T23:59:59.000Z

11

Systems Theoretic Hazard Analysis (STPA) applied to the risk review of complex systems : an example from the medical device industry  

E-Print Network [OSTI]

Traditional methods to identify and document hazards, and the corresponding safety constraints, are lacking in their ability to account for human, software and sub-system interactions in highly technical systems. STAMP, a ...

Antoine, Blandine

2013-01-01T23:59:59.000Z

12

Simulation and Analysis for Applying the Double-Stage Coupled Heat Pump System in the Villa of Cold Area  

E-Print Network [OSTI]

-to-water double-stage coupled heat pump system, is presented in this paper based on analyzing the characteristics of the villa district heating. Prediction and analysis of the feasibility of the double-stage coupled heat pump system in cold areas were carried...

Yang, L.; Yao, Y.; Ma, Z.

2006-01-01T23:59:59.000Z

13

Automation of radiochemical analysis by applying flow  

E-Print Network [OSTI]

of detection systems, including scintillation counting, a-spectrometers, proportional counters, mass spectrometry and spectrophotometry. ª 2010 Published by Elsevier Ltd. Keywords: Flow-analysis technique; Flow

Sánchez, David

14

The Applied Mathematics for Power Systems (AMPS)  

SciTech Connect (OSTI)

Increased deployment of new technologies, e.g., renewable generation and electric vehicles, is rapidly transforming electrical power networks by crossing previously distinct spatiotemporal scales and invalidating many traditional approaches for designing, analyzing, and operating power grids. This trend is expected to accelerate over the coming years, bringing the disruptive challenge of complexity, but also opportunities to deliver unprecedented efficiency and reliability. Our Applied Mathematics for Power Systems (AMPS) Center will discover, enable, and solve emerging mathematics challenges arising in power systems and, more generally, in complex engineered networks. We will develop foundational applied mathematics resulting in rigorous algorithms and simulation toolboxes for modern and future engineered networks. The AMPS Center deconstruction/reconstruction approach 'deconstructs' complex networks into sub-problems within non-separable spatiotemporal scales, a missing step in 20th century modeling of engineered networks. These sub-problems are addressed within the appropriate AMPS foundational pillar - complex systems, control theory, and optimization theory - and merged or 'reconstructed' at their boundaries into more general mathematical descriptions of complex engineered networks where important new questions are formulated and attacked. These two steps, iterated multiple times, will bridge the growing chasm between the legacy power grid and its future as a complex engineered network.

Chertkov, Michael [Los Alamos National Laboratory

2012-07-24T23:59:59.000Z

15

Lessons Learned in Applying Formal Concept Analysis to Reverse Engineering  

E-Print Network [OSTI]

Lessons Learned in Applying Formal Concept Analysis to Reverse Engineering Gabriela Ar´evalo, St in "International Conference on Formal Concept Analysis (ICFCA '05) (2005)" #12;Lessons Learned in Applying Formal artifacts. In this paper we describe our approach, outline three case studies, and draw various lessons from

Paris-Sud XI, Université de

16

Roadmap: Applied Engineering Manufacturing Systems Bachelor of Science  

E-Print Network [OSTI]

Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT 15000 Introduction to Human Communication 3 Fulfills Kent Core Additional Kent Core Requirement 3 See #12;Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT

Sheridan, Scott

17

Multivariate Mathematical Morphology applied to Color Image Analysis  

E-Print Network [OSTI]

Chapter 10 Multivariate Mathematical Morphology applied to Color Image Analysis 10.1. Introduction analysis framework, currently fully developed for both binary and gray-level images. Its popularity in the image processing community is mainly due to its rigorous mathematical foundation as well as its inherent

Lefèvre, Sébastien

18

Numerical tools applied to power reactor noise analysis Christophe Demazie`re*, Imre Pazsit  

E-Print Network [OSTI]

Review Numerical tools applied to power reactor noise analysis Christophe Demazie`re*, Imre Pa and application of the numerical tools employed. The code that was developed yields the space and non-critical systems with an external source. Some appli- cations of these tools to power reactor

Pázsit, Imre

19

A Vision for Systems Engineering Applied to Wind Energy (Presentation)  

SciTech Connect (OSTI)

This presentation was given at the Third Wind Energy Systems Engineering Workshop on January 14, 2015. Topics covered include the importance of systems engineering, a vision for systems engineering as applied to wind energy, and application of systems engineering approaches to wind energy research and development.

Felker, F.; Dykes, K.

2015-01-01T23:59:59.000Z

20

Ris-R-1388(EN) Applied Modal Analysis of Wind  

E-Print Network [OSTI]

Risø-R-1388(EN) Applied Modal Analysis of Wind Turbine Blades Henrik Broen Pedersen, Ole Jesper for wind turbine blades. Different methods to measure the position and adjust the direction of the meas measurement on the same wind turbine blade. Furthermore the flexibility of the test set-up is investigated

Note: This page contains sample records for the topic "applied systems 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

Draft of Preliminary Syllabus Applying Geospatial Analysis-Project Based Learning  

E-Print Network [OSTI]

Draft of Preliminary Syllabus Applying Geospatial Analysis- Project Based Learning Listed as, and analysis (2) formulate and evaluate research questions relating to geospatial approaches (3) learn geospatial techniques (4) learn data management, data conversion, and data analysis (5) apply geospatial

Fabrikant, Sara Irina

22

applying energy system: Topics by E-print Network  

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

applying energy system First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 California Energy Commission...

23

SUBSURFACE VISUAL ALARM SYSTEM ANALYSIS  

SciTech Connect (OSTI)

The ''Subsurface Fire Hazard Analysis'' (CRWMS M&O 1998, page 61), and the document, ''Title III Evaluation Report for the Surface and Subsurface Communication System'', (CRWMS M&O 1999a, pages 21 and 23), both indicate the installed communication system is adequate to support Exploratory Studies Facility (ESF) activities with the exception of the mine phone system for emergency notification purposes. They recommend the installation of a visual alarm system to supplement the page/party phone system The purpose of this analysis is to identify data communication highway design approaches, and provide justification for the selected or recommended alternatives for the data communication of the subsurface visual alarm system. This analysis is being prepared to document a basis for the design selection of the data communication method. This analysis will briefly describe existing data or voice communication or monitoring systems within the ESF, and look at how these may be revised or adapted to support the needed data highway of the subsurface visual alarm. system. The existing PLC communication system installed in subsurface is providing data communication for alcove No.5 ventilation fans, south portal ventilation fans, bulkhead doors and generator monitoring system. It is given that the data communication of the subsurface visual alarm system will be a digital based system. It is also given that it is most feasible to take advantage of existing systems and equipment and not consider an entirely new data communication system design and installation. The scope and primary objectives of this analysis are to: (1) Briefly review and describe existing available data communication highways or systems within the ESF. (2) Examine technical characteristics of an existing system to disqualify a design alternative is paramount in minimizing the number of and depth of a system review. (3) Apply general engineering design practices or criteria such as relative cost, and degree of difficulty and complexity in determining requirements in adapting existing data communication highways to support the subsurface visual alarm system. These requirements would include such things as added or new communication cables, added Programmable Logic Controller (PLC), Inputs and Outputs (I/O), and communication hardware components, and human machine interfaces and their software operating system. (4) Select the best data communication highway system based on this review of adapting or integrating with existing data communication systems.

D.W. Markman

2001-08-06T23:59:59.000Z

24

Coal systems analysis  

SciTech Connect (OSTI)

This collection of papers provides an introduction to the concept of coal systems analysis and contains examples of how coal systems analysis can be used to understand, characterize, and evaluate coal and coal gas resources. Chapter are: Coal systems analysis: A new approach to the understanding of coal formation, coal quality and environmental considerations, and coal as a source rock for hydrocarbons by Peter D. Warwick. Appalachian coal assessment: Defining the coal systems of the Appalachian Basin by Robert C. Milici. Subtle structural influences on coal thickness and distribution: Examples from the Lower Broas-Stockton coal (Middle Pennsylvanian), Eastern Kentucky Coal Field, USA by Stephen F. Greb, Cortland F. Eble, and J.C. Hower. Palynology in coal systems analysis The key to floras, climate, and stratigraphy of coal-forming environments by Douglas J. Nichols. A comparison of late Paleocene and late Eocene lignite depositional systems using palynology, upper Wilcox and upper Jackson Groups, east-central Texas by Jennifer M.K. O'Keefe, Recep H. Sancay, Anne L. Raymond, and Thomas E. Yancey. New insights on the hydrocarbon system of the Fruitland Formation coal beds, northern San Juan Basin, Colorado and New Mexico, USA by W.C. Riese, William L. Pelzmann, and Glen T. Snyder.

Warwick, P.D. (ed.)

2005-07-01T23:59:59.000Z

25

E-Print Network 3.0 - agroforestal systems applied Sample Search...  

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

agroforestal systems applied Search Powered by Explorit Topic List Advanced Search Sample search results for: agroforestal systems applied Page: << < 1 2 3 4 5 > >> 1 M.S....

26

Numerical tools applied to power reactor noise analysis  

SciTech Connect (OSTI)

In this paper, the development of numerical tools allowing the determination of the neutron noise in power reactors is reported. These tools give the space-dependence of the fluctuations of the neutron flux induced by fluctuating properties of the medium in the 2-group diffusion approximation and in a 2-dimensional representation of heterogeneous systems. Some applications of these tools to power reactor noise analysis are then described. These applications include the unfolding of the noise source from the resulting neutron noise measured at a few discrete locations throughout the core, the study of the space-dependence of the Decay Ratio in Boiling Water Reactors, the noise-based estimation of the Moderator Temperature Coefficient of reactivity in Pressurized Water Reactors, the modeling of shell-mode core barrel vibrations in Pressurized Water Reactors, and the investigation of the validity of the point-kinetic approximation in subcritical systems. (authors)

Demaziere, C.; Pazsit, I. [Chalmers Univ. of Technology, Dept. of Nuclear Engineering, SE-412 96 Goeteborg (Sweden)

2006-07-01T23:59:59.000Z

27

analysis naa applied: Topics by E-print Network  

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

Websites Summary: barrier (SBA), fault tree (FTA) and failure mode and effect analysis (FMEA) into one method. Our approach Analysis (FTA), Failure Mode and Effect Analysis (FMEA),...

28

applying systems engineering: Topics by E-print Network  

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

Elective 3 Engineering Technology courses Sheridan, Scott 9 Applied and Engineering Physics Materials Science Websites Summary: Applied and Engineering Physics Masters...

29

applying analysis technology: Topics by E-print Network  

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

Informationstechnologie; In Der Medizin; Thomas M. Lehmann Klaus Spitzer 110 Technology assessment and market analysis of solid state ultracapacitors . Open Access...

30

Measurement uncertainty analysis techniques applied to PV performance measurements  

SciTech Connect (OSTI)

The purpose of this presentation is to provide a brief introduction to measurement uncertainty analysis, outline how it is done, and illustrate uncertainty analysis with examples drawn from the PV field, with particular emphasis toward its use in PV performance measurements. The uncertainty information we know and state concerning a PV performance measurement or a module test result determines, to a significant extent, the value and quality of that result. What is measurement uncertainty analysis? It is an outgrowth of what has commonly been called error analysis. But uncertainty analysis, a more recent development, gives greater insight into measurement processes and tests, experiments, or calibration results. Uncertainty analysis gives us an estimate of the I interval about a measured value or an experiment`s final result within which we believe the true value of that quantity will lie. Why should we take the time to perform an uncertainty analysis? A rigorous measurement uncertainty analysis: Increases the credibility and value of research results; allows comparisons of results from different labs; helps improve experiment design and identifies where changes are needed to achieve stated objectives (through use of the pre-test analysis); plays a significant role in validating measurements and experimental results, and in demonstrating (through the post-test analysis) that valid data have been acquired; reduces the risk of making erroneous decisions; demonstrates quality assurance and quality control measures have been accomplished; define Valid Data as data having known and documented paths of: Origin, including theory; measurements; traceability to measurement standards; computations; uncertainty analysis of results.

Wells, C.

1992-10-01T23:59:59.000Z

31

Analysis Models and Tools: Systems Analysis of Hydrogen and Fuel...  

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

Analysis Models and Tools: Systems Analysis of Hydrogen and Fuel Cells Analysis Models and Tools: Systems Analysis of Hydrogen and Fuel Cells The Fuel Cell Technologies Office's...

32

Utility concepts applied to the socio-economic subregionization analysis  

E-Print Network [OSTI]

and, can be grouped into a single factor. These factors usually are independent of one another and may readily be used. to represent all the essential information of the original set of varia- bles. The reduction of the number of variables can... the most important information contained in the original data. As pointed out by Hummel, factor analysis has 40 these distinguishing characteristics: 1 . Factor analysis can separate the interrela- tionship among the phenomena into functional patterns...

Hsieh, Joseph Ching-Huei

1973-01-01T23:59:59.000Z

33

Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers (June-July 2011) and  

E-Print Network [OSTI]

Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers-structured models are even more likely to collapse. Risks and decisions for conservation and environmental management (Burgman and Possingham 2000) Population Viability Analysis (PVA) is a useful tool

34

Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers (June-July 2011)  

E-Print Network [OSTI]

Loosely Annotated Bibiolography: recommended by Applied Environmental Decision Analysis researchers to collapse. Risks and decisions for conservation and environmental management (Burgman and Possingham 2000) Population Viability Analysis (PVA) is a useful tool for conservation planning and population management

35

Current Human Reliability Analysis Methods Applied to Computerized Procedures  

SciTech Connect (OSTI)

Computerized procedures (CPs) are an emerging technology within nuclear power plant control rooms. While CPs have been implemented internationally in advanced control rooms, to date no US nuclear power plant has implemented CPs in its main control room (Fink et al., 2009). Yet, CPs are a reality of new plant builds and are an area of considerable interest to existing plants, which see advantages in terms of enhanced ease of use and easier records management by omitting the need for updating hardcopy procedures. The overall intent of this paper is to provide a characterization of human reliability analysis (HRA) issues for computerized procedures. It is beyond the scope of this document to propose a new HRA approach or to recommend specific methods or refinements to those methods. Rather, this paper serves as a review of current HRA as it may be used for the analysis and review of computerized procedures.

Ronald L. Boring

2012-06-01T23:59:59.000Z

36

E-Print Network 3.0 - activation analysis applied Sample Search...  

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

Flexible and Reliable Electronic Commerce Systems Summary: and the underlying TP facility form a framework for dynamic transactional activity processing. By applying the...

37

Grid embedment as applied to viscous transonic airfoil flowfield analysis  

E-Print Network [OSTI]

Journal, Vol. 18, No. 1, January, 1980, pp, 103-109. 6. Carlson, L. A. , "Inverse Transonic Airfoil Design Including Viscous Interaction, " NASA CP-2001, Vol. 4, 1976, pp. 1387-1395. 7. Steger, J. L. , and Lomax, H. , "Transonic Flow about Two... Mechanics, 1975, pp. 384-414. 9. Carlson, L. A. , "Transonic Airfoil Analysis and Design Using Cartesian Coordinates, " AIAA Journal of Aircraft, Vol. 13, No. 5, May, 1976, pp. 349-356. 10. White, Frank M. , Viscous Fluid Flow, McGraw-Hill, New York...

Reed, Christopher L.

1981-01-01T23:59:59.000Z

38

Multivariate calibration applied to the quantitative analysis of infrared spectra  

SciTech Connect (OSTI)

Multivariate calibration methods are very useful for improving the precision, accuracy, and reliability of quantitative spectral analyses. Spectroscopists can more effectively use these sophisticated statistical tools if they have a qualitative understanding of the techniques involved. A qualitative picture of the factor analysis multivariate calibration methods of partial least squares (PLS) and principal component regression (PCR) is presented using infrared calibrations based upon spectra of phosphosilicate glass thin films on silicon wafers. Comparisons of the relative prediction abilities of four different multivariate calibration methods are given based on Monte Carlo simulations of spectral calibration and prediction data. The success of multivariate spectral calibrations is demonstrated for several quantitative infrared studies. The infrared absorption and emission spectra of thin-film dielectrics used in the manufacture of microelectronic devices demonstrate rapid, nondestructive at-line and in-situ analyses using PLS calibrations. Finally, the application of multivariate spectral calibrations to reagentless analysis of blood is presented. We have found that the determination of glucose in whole blood taken from diabetics can be precisely monitored from the PLS calibration of either mind- or near-infrared spectra of the blood. Progress toward the non-invasive determination of glucose levels in diabetics is an ultimate goal of this research. 13 refs., 4 figs.

Haaland, D.M.

1991-01-01T23:59:59.000Z

39

Process Cooling Pumping Systems Analysis  

E-Print Network [OSTI]

An analysis of the mill water pumping systems at a North American manufacturing facility was conducted late las year and the following issues were observed: 1. Overpumping – Both systems were overpumped to a significant degree against...

Sherman, C.

2008-01-01T23:59:59.000Z

40

SMACS. Probabilistic Seismic Analysis System  

SciTech Connect (OSTI)

The SMACS (Seismic Methodology Analysis Chain with Statistics) system of computer programs is one of the major computational tools of the U.S. NRC Seismic Safety Margins Research Program (SSMRP). SMACS is comprised of the core program SMAX, which performs the SSI response analyses, five preprocessing programs, and two postprocessors. The preprocessing programs include: GLAY and CLAN, which generate the nominal impedance matrices and wave scattering vectors for surface-founded structures; INSSIN, which projects the dynamic properties of structures to the foundation in the form of modal participation factors and mass matrices; SAPPAC, which projects the dynamic and pseudostatic properties of multiply-supported piping systems to the support locations, and LNGEN, which can be used to generate the multiplication factors to be applied to the nominal soil, structural, and subsystem properties for each of the response calculations in accounting for random variations of these properties. The postprocessors are: PRESTO, which performs statistical operations on the raw data from the response vectors that SMAX produces to calculate best fit lognormal distributions for each response location, and CHANGO, which manipulates the data produced by PRESTO to produce other results of interest to the user. Also included is the computer program SAP4 (a modified version of the University of California, Berkeley SAPIV program), a general linear structural analysis program used for eigenvalue extractions and pseudostatic mode calculations of the models of major structures and subsystems. SAP4 is used to prepare input to the INSSIN and SAPPAC preprocessing programs. The GLAY and CLAN programs were originally developed by J.E. Luco (UCSD) and H.L. Wong (USC).

Johnson, J.J.; Maslenikov, O.R.; Tiong, L.W.; Mraz, M.J. [EQE Incorporated, San Ramon, CA (United States); Bumpus, S.; Gerhard, M.A. [Lawrence Livermore National Lab., CA (United States)

1992-01-14T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Energy, Environmental & Economic Systems Analysis  

E-Print Network [OSTI]

Energy, Environmental & Economic Systems Analysis ENPEP-BALANCE: A Tool for Long-term Nuclear Power, Environmental & Economic Systems Analysis A resurgence of interest in nuclear energy is taking place Market Simulations Opportunity Decision and Information Sciences Division Center for Energy

42

Applying Innovation System Concept in Agricultural Research for...  

Open Energy Info (EERE)

The R&D system should think in terms of contributing to innovation. The Improving Productivity & Market Success of Ethiopian Farmers (IPMS) project is fully cognizant of this...

43

LASER SCANNING AND NOISE REDUCTION APPLIED TO 3D ROAD SURFACE ANALYSIS  

E-Print Network [OSTI]

LASER SCANNING AND NOISE REDUCTION APPLIED TO 3D ROAD SURFACE ANALYSIS Thorsten Schulz and Hilmar, EAWAG Email: michele.steiner@eawag.ch Abstract: Terrestrial laser scanning was applied to acquire 3D the catchment area of a road with respect to a pilot plant. As laser scanning requires only a few minutes

Giger, Christine

44

The Handbook of Applied Bayesian Analysis, Eds: Tony O'Hagan & Mike West, Oxford University Bayesian analysis and decisions in nuclear power plant  

E-Print Network [OSTI]

Bayesian analysis and decisions in nuclear power plant maintenance Elmira Popova, David Morton, Paul Damien are then applied to solving an important problem in a nuclear power plant system at the South Texas Project (STP) Electric Generation Station. STP is one of the newest and largest nuclear power plants in the US

Morton, David

45

Quantitative Languages for Complex Systems Applied to Biological Structure  

E-Print Network [OSTI]

representations of the system. We illustrate the development of such languages using the structure of Drosophila this problem as well as to promote the study of complex systems as a systematic discipline, we seek to develop, life cycle stages, mutant abnormalities, gene expression patterns, genetic interactions, etc. In order

46

The cognitive/sensorimotor distinction or Glover's three-part distinction can be applied to the oculomotor system, as Glover  

E-Print Network [OSTI]

The cognitive/sensorimotor distinction or Glover's three-part distinction can be applied to the oculomotor system, as Glover notes. A first step in this analysis is to differentiate planning and control. In this sense we agree with Glover that there are probably differences between the use of information

Jegelka, Stefanie

47

Applying New Network Security Technologies to SCADA Systems.  

SciTech Connect (OSTI)

Supervisory Control and Data Acquisition (SCADA) systems for automation are very important for critical infrastructure and manufacturing operations. They have been implemented to work in a number of physical environments using a variety of hardware, software, networking protocols, and communications technologies, often before security issues became of paramount concern. To offer solutions to security shortcomings in the short/medium term, this project was to identify technologies used to secure %22traditional%22 IT networks and systems, and then assess their efficacy with respect to SCADA systems. These proposed solutions must be relatively simple to implement, reliable, and acceptable to SCADA owners and operators. 4This page intentionally left blank.

Hurd, Steven A.; Stamp, Jason E. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM; Duggan, David P. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM; Chavez, Adrian R. [Sandia National Laboratories, Albuquerque, NM] [Sandia National Laboratories, Albuquerque, NM

2006-11-01T23:59:59.000Z

48

An applied study using systems engineering methods to prioritize green systems options  

SciTech Connect (OSTI)

For many years, there have been questions about the effectiveness of applying different green solutions. If you're building a home and wish to use green technologies, where do you start? While all technologies sound promising, which will perform the best over time? All this has to be considered within the cost and schedule of the project. The amount of information available on the topic can be overwhelming. We seek to examine if Systems Engineering methods can be used to help people choose and prioritize technologies that fit within their project and budget. Several methods are used to gain perspective into how to select the green technologies, such as the Analytic Hierarchy Process (AHP) and Kepner-Tregoe. In our study, subjects applied these methods to analyze cost, schedule, and trade-offs. Results will document whether the experimental approach is applicable to defining system priorities for green technologies.

Lee, Sonya M [Los Alamos National Laboratory; Macdonald, John M [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

49

Integrated systems analysis of the PIUS reactor  

SciTech Connect (OSTI)

Results are presented of a systems failure analysis of the PIUS plant systems that are used during normal reactor operation and postulated accidents. This study was performed to provide the NRC with an understanding of the behavior of the plant. The study applied two diverse failure identification methods, Failure Modes Effects & Criticality Analysis (FMECA) and Hazards & Operability (HAZOP) to the plant systems, supported by several deterministic analyses. Conventional PRA methods were also used along with a scheme for classifying events by initiator frequency and combinations of failures. Principal results of this study are: (a) an extensive listing of potential event sequences, grouped in categories that can be used by the NRC, (b) identification of support systems that are important to safety, and (c) identification of key operator actions.

Fullwood, F.; Kroeger, P.; Higgins, J. [Brookhaven National Lab., Upton, NY (United States)] [and others

1993-11-01T23:59:59.000Z

50

E-Print Network 3.0 - applied self-organizing systems Sample...  

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

Environmental Sciences and Ecology 9 A Study of Self-Organization Mechanisms in Ad Hoc and Sensor Networks Summary: and apply these ideas to technical systems. Especially...

51

Multi-agent cooperative systems applied to precision applications  

SciTech Connect (OSTI)

Regulatory agencies are imposing limits and constraints to protect the operator and/or the environment. While generally necessary, these controls also tend to increase cost and decrease efficiency and productivity. Intelligent computer systems can be made to perform these hazardous tasks with greater efficiency and precision without danger to the operators. The Idaho national Engineering and Environmental Laboratory and the Center for Self-Organizing and Intelligent Systems at Utah State University have developed a series of autonomous all-terrain multi-agent systems capable of performing automated tasks within hazardous environments. This paper discusses the development and application of cooperative small-scale and large-scale robots for use in various activities associated with radiologically contaminated areas, prescription farming, and unexploded ordinances.

McKay, M.D.; Anderson, M.O. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States); Gunderson, R.W.; Flann, N.; Abbott, B. [Utah State Univ., Logan, UT (United States)

1998-03-01T23:59:59.000Z

52

Dynamic programming applied to maximizing traffic flow in parallel systems  

E-Print Network [OSTI]

Solution of the problem The Triple-Route Model 33 CHAPTER I INTRODUCTION The control of traffic flow and congestion in freeway systems is a matter of increasing importance at a time when it. has become evident that it is impossible to construct... enough urban highway- to satisfy all of the traffic demand. It is necessary to seek ways to make more efficient u. e of existing freeways. Nattleworth (1, 2) and others (3, 4, 5, 6) have discussed various aspects of the control of freeway systems...

Anderson, Gerald Lee

1967-01-01T23:59:59.000Z

53

Function Analysis and Decomposistion using Function Analysis Systems Technique  

SciTech Connect (OSTI)

The "Father of Value Analysis", Lawrence D. Miles, was a design engineer for General Electric in Schenectady, New York. Miles developed the concept of function analysis to address difficulties in satisfying the requirements to fill shortages of high demand manufactured parts and electrical components during World War II. His concept of function analysis was further developed in the 1960s by Charles W. Bytheway, a design engineer at Sperry Univac in Salt Lake City, Utah. Charles Bytheway extended Mile's function analysis concepts and introduced the methodology called Function Analysis Systems Technique (FAST) to the Society of American Value Engineers (SAVE) at their International Convention in 1965 (Bytheway 1965). FAST uses intuitive logic to decompose a high level, or objective function into secondary and lower level functions that are displayed in a logic diagram called a FAST model. Other techniques can then be applied to allocate functions to components, individuals, processes, or other entities that accomplish the functions. FAST is best applied in a team setting and proves to be an effective methodology for functional decomposition, allocation, and alternative development.

Wixson, James Robert

1999-06-01T23:59:59.000Z

54

Function Analysis and Decomposistion using Function Analysis Systems Technique  

SciTech Connect (OSTI)

The "Father of Value Analysis", Lawrence D. Miles, was a design engineer for General Electric in Schenectady, New York. Miles developed the concept of function analysis to address difficulties in satisfying the requirements to fill shortages of high demand manufactured parts and electrical components during World War II. His concept of function analysis was further developed in the 1960s by Charles W. Bytheway, a design engineer at Sperry Univac in Salt Lake City, Utah. Charles Bytheway extended Mile's function analysis concepts and introduced the methodology called Function Analysis Systems Techniques (FAST) to the Society of American Value Engineers (SAVE) at their International Convention in 1965 (Bytheway 1965). FAST uses intuitive logic to decompose a high level, or objective function into secondary and lower level functions that are displayed in a logic diagram called a FAST model. Other techniques can then be applied to allocate functions to components, individuals, processes, or other entities that accomplish the functions. FAST is best applied in a team setting and proves to be an effective methodology for functional decomposition, allocation, and alternative development.

J. R. Wixson

1999-06-01T23:59:59.000Z

55

System And Method Of Applying Energetic Ions For Sterlization  

DOE Patents [OSTI]

A method of sterilization of a container is provided whereby a cold plasma is caused to be disposed near a surface to be sterilized, and the cold plasma is then subjected to a pulsed voltage differential for producing energized ions in the plasma. Those energized ions then operate to achieve spore destruction on the surface to be sterilized. Further, a system for sterilization of a container which includes a conductive or non-conductive container, a cold plasma in proximity to the container, and a high voltage source for delivering a pulsed voltage differential between an electrode and the container and across the cold plasma, is provided.

Schmidt, John A. (Princeton, NJ)

2002-06-11T23:59:59.000Z

56

ADVANCED POWER SYSTEMS ANALYSIS TOOLS  

SciTech Connect (OSTI)

The use of Energy and Environmental Research Center (EERC) modeling tools and improved analytical methods has provided key information in optimizing advanced power system design and operating conditions for efficiency, producing minimal air pollutant emissions and utilizing a wide range of fossil fuel properties. This project was divided into four tasks: the demonstration of the ash transformation model, upgrading spreadsheet tools, enhancements to analytical capabilities using the scanning electron microscopy (SEM), and improvements to the slag viscosity model. The ash transformation model, Atran, was used to predict the size and composition of ash particles, which has a major impact on the fate of the combustion system. To optimize Atran key factors such as mineral fragmentation and coalescence, the heterogeneous and homogeneous interaction of the organically associated elements must be considered as they are applied to the operating conditions. The resulting model's ash composition compares favorably to measured results. Enhancements to existing EERC spreadsheet application included upgrading interactive spreadsheets to calculate the thermodynamic properties for fuels, reactants, products, and steam with Newton Raphson algorithms to perform calculations on mass, energy, and elemental balances, isentropic expansion of steam, and gasifier equilibrium conditions. Derivative calculations can be performed to estimate fuel heating values, adiabatic flame temperatures, emission factors, comparative fuel costs, and per-unit carbon taxes from fuel analyses. Using state-of-the-art computer-controlled scanning electron microscopes and associated microanalysis systems, a method to determine viscosity using the incorporation of grey-scale binning acquired by the SEM image was developed. The image analysis capabilities of a backscattered electron image can be subdivided into various grey-scale ranges that can be analyzed separately. Since the grey scale's intensity is dependent on the chemistry of the particle, it is possible to map chemically similar areas which can also be related to the viscosity of that compound at temperature. A second method was also developed to determine the elements associated with the organic matrix of the coals, which is currently determined by chemical fractionation. Mineral compositions and mineral densities can be determined for both included and excluded minerals, as well as the fraction of the ash that will be represented by that mineral on a frame-by-frame basis. The slag viscosity model was improved to provide improved predictions of slag viscosity and temperature of critical viscosity for representative Powder River Basin subbituminous and lignite coals.

Robert R. Jensen; Steven A. Benson; Jason D. Laumb

2001-08-31T23:59:59.000Z

57

NETL: SOFC Systems Analysis  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Opticalhttp://www.fnal.gov/directorate/nalcal/nalcal02_07_05_files/nalcal.gifAEnergy ScientistNETL-RUAProjectSystems

58

Advanced CSP Systems Analysis  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre theAdministrator Referencesalkali metalsTiO2(110).CSP Systems

59

The ALICE analysis train system  

E-Print Network [OSTI]

In the ALICE experiment hundreds of users are analyzing big datasets on a Grid system. High throughput and short turn-around times are achieved by a centralized system called the LEGO trains. This system combines analysis from different users in so-called analysis trains which are then executed within the same Grid jobs thereby reducing the number of times the data needs to be read from the storage systems. The centralized trains improve the performance, the usability for users and the bookkeeping in comparison to single user analysis. The train system builds upon the already existing ALICE tools, i.e. the analysis framework as well as the Grid submission and monitoring infrastructure. The entry point to the train system is a web interface which is used to configure the analysis and the desired datasets as well as to test and submit the train. Several measures have been implemented to reduce the time a train needs to finish and to increase the CPU efficiency.

Markus Zimmermann; for the ALICE collaboration

2015-02-23T23:59:59.000Z

60

E-Print Network 3.0 - applying performance analysis Sample Search...  

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

system to a recorded performance of a trumpet playing... the analysis of recorded acoustic performances in order to study the relationship between scores... of two stages....

Note: This page contains sample records for the topic "applied systems 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

Experimental ferrite core circuit analysis and design applied to an analog/digital converter  

E-Print Network [OSTI]

EXPKRflIENTAL FERRITE CORE CIRCUIT ANALYSIS A/4i) CESIGN APPLI ED' TO AN ANALOG+I QITAL -CCWERTER I I 'O' Thaaka RCSERT, NI. LL'I AN HQQAKS:-. , ";, , '. . :. . '. -:. '"":, , ':-. ', . -' ". ' t, . I I I' I, ' . Sobalttad, ta tb ~ Qra... , Na'fir. Sabjaat& ' Eiaktr leal EnCInaaring . EXPERIIIENTAL FERRITE CORE CIRCUIT ANALYSIS AND DESIGN APPLIED TO 'AN AMALGG/DIGITAL CONVERTER f 1 A, . Thea I'a t ROBERT Wl LI. I Al'Jl. HUGHES (Goober, ) ' (Me@bar) ' A'yprived . a'o . . to a4...

Hughes, Robert William

1965-01-01T23:59:59.000Z

62

Safety System Oversight Staffing Analysis (Instructions, Blank...  

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

Safety System Oversight Staffing Analysis (Instructions, Blank Sheet and Example Sheet) Safety System Oversight Staffing Analysis (Instructions, Blank Sheet and Example Sheet) This...

63

The Ford-Pfenning Quantum Inequalities(QI) Analysis applied to the Natario Warp Drive Spacetime.  

E-Print Network [OSTI]

The Ford-Pfenning Quantum Inequalities(QI) Analysis applied to the Natario Warp Drive Spacetime. Fernando Loup Residencia de Estudantes Universitas Lisboa Portugal October 15, 2012 Abstract Warp Drives Relativity. There are at the present moment two known solutions: The Alcubierre warp drive discovered in 1994

Paris-Sud XI, Université de

64

Extending the Borders of Accident Investigation: Applying Novel Analysis Techniques to the Loss of the Brazilian  

E-Print Network [OSTI]

-1- Extending the Borders of Accident Investigation: Applying Novel Analysis Techniques to the Loss. In consequence, it is becoming increasingly difficult to identify the causes of incidents and accidents back to the development of a number of novel accident investigation techniques. Most of these approaches are intended

Johnson, Chris

65

International Institute for Applied Systems Analysis | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place: EdenOverview Of The Data,association Name:Information

66

APPLIED BIOLOGY 360 ~ FOOD & ENVIRONMENT II (Agroecology II) Faculty of Land and Food Systems  

E-Print Network [OSTI]

: APBI 360 uses a systems approach to investigate the functions and interactions of plants and animals/ 204 pp Gliessman, S.R. 2007. Agroecology ­ The Ecology of Sustainable Food Systems. Second Edition1 APPLIED BIOLOGY 360 ~ FOOD & ENVIRONMENT II (Agroecology II) Faculty of Land and Food Systems

Farrell, Anthony P.

67

Applied Materials Develops an Advanced Epitaxial Growth System to Bring Down LED Costs  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Applied Materials has developed an advanced epitaxial growth system for gallium nitride (GaN) LED devices that decreases operating costs, increases internal quantum efficiency, and improves binning yields.

68

Inventory reduction : applying a pull ordering system to a distribution business  

E-Print Network [OSTI]

This thesis is a description of an internship project at an aerospace parts distribution company. The goal of the project was to reduce inventory by applying a pull ordering system to the distributor's value chain. The ...

Chesborough, Amber J. (Amber June), 1977-

2004-01-01T23:59:59.000Z

69

Transportation Routing Analysis Geographic Information System (TRAGIS)  

E-Print Network [OSTI]

Transportation Routing Analysis Geographic Information System (TRAGIS) Model and Network Databases The Transportation Routing Analysis Geographic Information System (TRAGIS) model is a geographic information system tool for modeling transportation routing. TRAGIS offers numerous options for route calculation

70

Numerical methods of integration applied in the nonlinear dynamic analysis of shells of revolution  

E-Print Network [OSTI]

structural bel&avior a&d therefore cannot be used for nonlinear analyses. lhe second nðod of dynamic analysis uses numerical integra- tion of the equations of notion wit'bout necessitating a transforma- tion of coordinates. Tne numerical integration...!riinear beam analysis {first vibratory mode only) with the most prc!! ising methods b ing programmed for shell analy! es. Rea- listic test problems are used to evaluate three of the numerical integration procedures as applied in shell of revolution analyses...

Tillerson, Joe Richard

2012-06-07T23:59:59.000Z

71

Applying observations of work activity in designing prototype data analysis tools  

SciTech Connect (OSTI)

Designers, implementers, and marketers of data analysis tools typically have different perspectives than users. Consequently, data analysis often find themselves using tools focused on graphics and programming concepts rather than concepts which reflect their own domain and the context of their work. Some user studies focus on usability tests late in development; others observe work activity, but fail to show how to apply that knowledge in design. This paper describes a methodology for applying observations of data analysis work activity in prototype tool design. The approach can be used both in designing improved data analysis tools, and customizing visualization environments to specific applications. We present an example of user-centered design for a prototype tool to cull large data sets. We revisit the typical graphical approach of animating a large data set from the point of view of an analysis who is culling data. Field evaluations using the prototype tool not only revealed valuable usability information, but initiated in-depth discussions about user`s work, tools, technology, and requirements.

Springmeyer, R.R.

1993-07-06T23:59:59.000Z

72

Apparatus and system for multivariate spectral analysis  

DOE Patents [OSTI]

An apparatus and system for determining the properties of a sample from measured spectral data collected from the sample by performing a method of multivariate spectral analysis. The method can include: generating a two-dimensional matrix A containing measured spectral data; providing a weighted spectral data matrix D by performing a weighting operation on matrix A; factoring D into the product of two matrices, C and S.sup.T, by performing a constrained alternating least-squares analysis of D=CS.sup.T, where C is a concentration intensity matrix and S is a spectral shapes matrix; unweighting C and S by applying the inverse of the weighting used previously; and determining the properties of the sample by inspecting C and S. This method can be used by a spectrum analyzer to process X-ray spectral data generated by a spectral analysis system that can include a Scanning Electron Microscope (SEM) with an Energy Dispersive Detector and Pulse Height Analyzer.

Keenan, Michael R. (Albuquerque, NM); Kotula, Paul G. (Albuquerque, NM)

2003-06-24T23:59:59.000Z

73

Tank waste remediation system (TWRS) mission analysis  

SciTech Connect (OSTI)

The Tank Waste Remediation System Mission Analysis provides program level requirements and identifies system boundaries and interfaces. Measures of success appropriate to program level accomplishments are also identified.

Rieck, R.H.

1996-10-03T23:59:59.000Z

74

Systems Analysis Workshop List of Attendees  

Broader source: Energy.gov [DOE]

List of Attendees from DOE Systems Analysis Workshop held in Washington, D.C. July 28-29, 2004 to discuss and define role of systems analysis in DOE Hydrogen Program.

75

Expert Meeting Report: Recommendations for Applying Water Heaters in Combination Space and Domestic Water Heating Systems  

SciTech Connect (OSTI)

The topic of this meeting was 'Recommendations For Applying Water Heaters In Combination Space And Domestic Water Heating Systems.' Presentations and discussions centered on the design, performance, and maintenance of these combination systems, with the goal of developing foundational information toward the development of a Building America Measure Guideline on this topic. The meeting was held at the Westford Regency Hotel, in Westford, Massachusetts on 7/31/2011.

Rudd, A.; Ueno, K.; Bergey, D.; Osser, R.

2012-07-01T23:59:59.000Z

76

Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs  

E-Print Network [OSTI]

Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs Farid) UAVs including conventional helicopters, four- rotors aircraft (Draganflyer) and several designs for small aerial vehicles, some restrictions and conditions specific to small UAVs have to be considered

Sontag, Eduardo

77

Geospatial analysis of vulnerable beach-foredune systems from decadal time series of lidar data  

E-Print Network [OSTI]

Geospatial analysis of vulnerable beach-foredune systems from decadal time series of lidar data, Geospatial analysis of vulnerable beach- foredune systems from decadal time series of lidar data, Journal densities; therefore, geospatial analysis, when applied to decadal lidar time series, needs to address

Mitasova, Helena

78

Comprehensive Mechanisms for Combustion Chemistry: An Experimental and Numerical Study with Emphasis on Applied Sensitivity Analysis  

SciTech Connect (OSTI)

This project was an integrated experimental/numerical effort to study pyrolysis and oxidation reactions and mechanisms for small-molecule hydrocarbon structures under conditions representative of combustion environments. The experimental aspects of the work were conducted in large-diameter flow reactors, at 0.3 to 18 atm pressure, 500 to 1100 K temperature, and 10-2 to 2 seconds reaction time. Experiments were also conducted to determine reference laminar flame speeds using a premixed laminar stagnation flame experiment and particle image velocimetry, as well as pressurized bomb experiments. Flow reactor data for oxidation experiments include: (1)adiabatic/isothermal species time-histories of a reaction under fixed initial pressure, temperature, and composition; to determine the species present after a fixed reaction time, initial pressure; (2)species distributions with varying initial reaction temperature; (3)perturbations of a well-defined reaction systems (e.g. CO/H2/O2 or H2/O2)by the addition of small amounts of an additive species. Radical scavenging techniques are applied to determine unimolecular decomposition rates from pyrolysis experiments. Laminar flame speed measurements are determined as a function of equivalence ratio, dilution, and unburned gas temperature at 1 atm pressure. Hierarchical, comprehensive mechanistic construction methods were applied to develop detailed kinetic mechanisms which describe the measurements and literature kinetic data. Modeling using well-defined and validated mechanisms for the CO/H2/Oxidant systems and perturbations of oxidation experiments by small amounts of additives were also used to derive absolute reaction rates and to investigate the compatibility of published elementary kinetic and thermochemical information. Numerical tools were developed and applied to assess the importance of individual elementary reactions to the predictive performance of the developed mechanisms and to assess the uncertainties in elementary rate constant evaluations.

Dryer, Frederick L.

2009-04-10T23:59:59.000Z

79

Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings  

E-Print Network [OSTI]

Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings Hassan Radhi Assistant Professor College of Engineering UAE University Al-Ain, United Arab Emirates ABSTRACT In the market... due to the PV panels represents an important factor when the EPBT is estimated Keywords: BiPV, embodied energy, UAE commercial buildings. INTRODUCTION Developments in the design and manufacture of photovoltaic cells have recently been a...

Radhi, H.

2010-01-01T23:59:59.000Z

80

System architecture analysis and selection under uncertainty  

E-Print Network [OSTI]

A system architecture analysis and selection methodology is presented that builds on the Multidisciplinary Analysis and Optimization framework. It addresses a need and opportunity to extend the MAO techniques to include a ...

Smaling, Rudolf M

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Transportation Routing Analysis Geographic Information System...  

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

Analysis Geographic Information System (TRAGIS) to Spent Fuel Routing Analysis P. E. Johnson R.R. Rawl Oak Ridge National Laboratory TRAGIS is being used by OCRWM to identify...

82

Reachability Analysis of Stochastic Hybrid Systems: A Biodiesel Production System  

E-Print Network [OSTI]

Reachability Analysis of Stochastic Hybrid Systems: A Biodiesel Production System Derek Riley problem because it provides a formal framework to analyze complex systems. Biodiesel production is a realistic biochemical process that can be modeled and analyzed using SHS methods. Analysis of a biodiesel

Koutsoukos, Xenofon D.

83

A laser-induced repetitive fast neutron source applied for gold activation analysis  

SciTech Connect (OSTI)

A laser-induced repetitively operated fast neutron source was developed for applications in laser-driven nuclear physics research. The developed neutron source, which has a neutron yield of approximately 4 Multiplication-Sign 10{sup 5} n/pulse and can be operated up to a pulse repetition rate of 10 Hz, was applied for a gold activation analysis. Relatively strong delayed gamma spectra of the activated gold were measured at 333 keV and 355 keV, and proved the possibility of the neutron source for activation analyses. In addition, the nuclear reactions responsible for the measured gamma spectra of gold were elucidated by the 14 MeV fast neutrons resulting from the D(t,n)He{sup 4} nuclear reaction, for which the required tritium originated from the primary fusion reaction, D(d,p)T{sup 3}.

Lee, Sungman; Park, Sangsoon; Lee, Kitae; Cha, Hyungki [Quantum Optics Division, Korea Atomic Energy Research Institute, Daejeon 305-600 (Korea, Republic of)

2012-12-15T23:59:59.000Z

84

Multiple stellar systems under photometric and astrometric analysis  

E-Print Network [OSTI]

The light-time effect method, its limitations and applications were studied. A powerful combined method of simultaneous analysis of the O-C diagrams and astrometric orbit in triple eclipsing-astrometric binaries was presented. Eleven eclipsing systems were studied in detail according to their O-C diagrams (RY Aqr, BF CMi, RW Cap, TY Cap, SS Cet, RR Dra, TY Del, TZ Eri, RV Per, UZ Sge, and BO Vul). The introduced method for studying the astrometric-eclipsing binaries was applied to QS Aql, VW Cep, Zeta Phe, V505 Sgr, HT Vir, and V2388 Oph. The algorithm for such an analysis was introduced and the its limitations were discussed. The catalogue of another systems, which contain eclipsing binaries in astrometric binaries, was presented. Such systems could be useful for prospective analysis. The method itself could be easily modified for estimation of the parallax of the individual systems.

P. Zasche

2008-01-28T23:59:59.000Z

85

IT Specialist (Systems Analysis/Applications Software)  

Broader source: Energy.gov [DOE]

The incumbent in this position will serve as a Senior IT Specialist (Systems Analysis/Applications Support) and Technical Lead in the Enterprise Applications Support organization of Software...

86

NREL: Energy Analysis - Technology Systems Analysis  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements ofLiz Torres Photo of LizSchwabeTechnology Systems

87

Systems analysis of multiple regulator perturbations allows discoveryo...  

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

Systems analysis of multiple regulator perturbations allows discoveryof virulence factors in Salmonella. Systems analysis of multiple regulator perturbations allows discoveryof...

88

Solar load ratio method applied to commercial building active solar system sizing  

SciTech Connect (OSTI)

The hourly simulation procedure is the DOE-2 building energy analysis computer program. It is capable of calculating the loads and of simulating various control strategies in detail for both residential and commercial buildings and yet is computationally efficient enough to be used for extensive parametric studies. In addition, to a Building Service Hot Water (BSHW) System and a combined space heating and hot water system using liquid collectors for a commercial building analyzed previously, a space heating system using an air collector is analyzed. A series of runs is made for systems using evacuated tube collectors for comparison to flat-plate collectors, and the effects of additional system design parameters are investigated. Also, the generic collector types are characterized by standard efficiency curves, rather than by detailed collector specifications. (MHR)

Schnurr, N.M.; Hunn, B.D.; Williamson, K.D. III

1981-01-01T23:59:59.000Z

89

Nonstandard Analysis Applied to Special and General Relativity - The Theory of Infinitesimal Light-Clocks  

E-Print Network [OSTI]

Nonstandard analysis and electromagnetic propagation properties are used to derive all of the fundamental results for the Special Theory of Relativity. Infinitesimal modeling via infinitesimal light-clocks is used to derive two general line-elements (metrics) without the use of Riemannian geometry. By substituting potential velocities, the Schwarzschild, quasi and modified Schwarzschild, de Sitter, Robertson-Walker and similar line-elements are derived. New black hole and quasi-white hole investigations are presented. A new fixed method using separating operators is used to obtain the major predictions for the relativistic alterations in natural-system behavior. The major conclusion is that all such changes are related to electromagnetic properties and that Riemannian geometry is but an analogue model for natural-system behavior.

Robert A. Herrmann

2014-02-14T23:59:59.000Z

90

Environmental applications of the particle analysis system  

SciTech Connect (OSTI)

This study demonstrates the applicability of particle counting technology for analysis of various water treatment systems at the Rocky Flats Plant. The Particle Analysis System described in this study determined the water quality of samples from environmental remediation, stormwater treatment, and drinking water treatment operations. Samples were measured in either discrete or on-line mode. This data showed filtration efficiencies, particle counts, particle size distributions, and real-time treatment system performance. Particle counting proved more sensitive than the turbidimetric measurement technique commonly used by the water treatment industry. Particle counting is a two-dimensional measurement of counts and sizes, whereas turbidity is a one-dimensional measurement of water clarity. Samples showing identical turbidities could be distinguished easily with the Particle Analysis System. The Particle Analysis System proved to be an efficient and reliable water quality measurement tool, and it is applicable to a variety of water treatment systems at the Rocky Flats Plant.

Moritz, E.J.; Hoffman, C.R.

1993-09-28T23:59:59.000Z

91

Electrical signature analysis (ESA) developments at the Oak Ridge Diagnostics Applied Research Center  

SciTech Connect (OSTI)

Since 1985, researchers at the Oak Ridge National Laboratory (ORNL) have developed and patented several novel signal conditioning and signature analysis methods that have exploited the intrinsic abilities of conventional electric motors and generators to act as transducers. By using simple nonintrusive sensors such as clamp-on current and voltage probes, these new diagnostic techniques provide an improved means of detecting small time-dependent load and speed variations generated anywhere within an electromechanical system and converting them into revealing signatures that can be used to detect equipment degradation and incipient failures. These developments have been grouped under the general name of electrical signature analysis (ESA) and together provide a breakthrough in the ability to detect, analyze, and correct unwanted changes in process conditions or the presence of abnormalities in electrical and electromechanical equipment. Typical diagnostic information provided by ESA is comparable to that provided by conventional vibration analysis in that both time waveform and frequency spectrum signatures may be produced. The primary benefit of ESA is that an extensive range of diagnostic information can be obtained from a single transducer that may be installed several hundred feet or more from the monitored device on its electrical lines supplying input power (e.g., to a motor) or carrying output power (e.g., from a generator); thus, ESA is truly remote and nonintrusive.

Haynes, H.D. [Oak Ridge National Lab., TN (United States). Diagnostics Applied Research Center

1995-07-01T23:59:59.000Z

92

Mandatory Photovoltaic System Cost Analysis  

Broader source: Energy.gov [DOE]

The Arizona Corporation Commission requires electric utilities to conduct a cost/benefit analysis to compare the cost of line extension with the cost of installing a stand-alone photovoltaic (PV)...

93

SteamMaster: Steam System Analysis Software  

E-Print Network [OSTI]

STEAMMASTER: STEAM SYSTEM ANALYSIS SOFTW ARE Greg Wheeler Associate Professor Oregon State University Corvallis, OR 9733 I ABSTRACT As director of Oregon's ]ndustrial Assessment Center, [ have encountered many industrial steam systems during... plant visits. We analyze steam systems and make recommendations to improve system efficiency. [n nearly 400 industrial assessments, we have recommended 210 steam system improvements, excluding heat recovery, that would save $1.5 million/year with a...

Wheeler, G.

94

E-Print Network 3.0 - analysis methods applied Sample Search...  

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

Summary: Methods in Applied Sciences and Engineering (ECCOMAS 2008) June 30 -July 5, 2008 Venice, Italy Manifold... -mail: marino.arroyo@upc.edu Key Words: meshfree methods,...

95

E-Print Network 3.0 - analysis method applied Sample Search Results  

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

Summary: Methods in Applied Sciences and Engineering (ECCOMAS 2008) June 30 -July 5, 2008 Venice, Italy Manifold... -mail: marino.arroyo@upc.edu Key Words: meshfree methods,...

96

The University of Mississippi Department of Electrical EngineeringCenterofAppliedElectromagneticSystemsResearch(CAESR) The University of Mississippi Department of Electrical EngineeringCenterofAppliedElectromagneticSystemsResearch(CAESR) Optimizing Multip  

E-Print Network [OSTI]

=100, NY=100 Computation Time vs Domain Size #12;The University of Mississippi Department of ElectricalThe University of Mississippi Department of Electrical EngineeringCenterofAppliedElectromagneticSystemsResearch(CAESR) The University of Mississippi Department of Electrical Engineering

Elsherbeni, Atef Z.

97

Simulation and analysis of Magnetically-Applied Pressure-Shear (MAPS) experiments.  

SciTech Connect (OSTI)

A new experimental technique to measure material shear strength at high pressures has been developed for use on magnetohydrodynamic (MHD) drive pulsed power platforms. The technique is referred to as Magnetically-Applied Pressure-Shear (MAPS). By applying an external static magnetic field to the sample region, the MHD drive directly induces a shear stress wave in addition to the usual longitudinal stress wave. Strength is probed by passing this shear wave through a sample material where the transmissible shear stress is limited to the sample strength. The magnitude of the transmitted shear wave is measured via a transverse velocity interferometry system (VISAR) from which the sample strength is determined. The strength of materials is defined as the ability of a material to sustain deviatoric (shear) stresses. Strength is an important aspect of the response of materials subjected to compression to high pressure. Beyond the elastic response, material strength will govern at what pressure and to what extent a material will plastically deform. The MAPS technique cleverly exploits the property that, for a von Mises yield criterion at a given longitudinal stress, the maximum amplitude shear wave that can be transmitted is limited by the strength at that stress level. Successful fielding of MAPS experiments to measure shear stresses relies upon correct numerical simulation of the experiment. Complex wave interactions among forward and reflected longitudinal and shear waves, as well as the advancing magnetic diffusion front of the MHD drive, can make the design of the experiment complicated. Careful consideration must be given to driver, sample, and anvil materials; to the thicknesses of the driver, sample and anvil layers; as well as to the timing of the interacting waves. This paper will present and analyze the 2D MHD simulations used to design the MAPS experiments. The MAPS experiments are modeled using Sandia's ALEGRA-MHD simulation code. ALEGRA-MHD is an operator-split, multi-physics, multi-material, arbitrary lagrangian-eulerian code developed to model magnetic implosion, ceramic fracture, and electromagnetic launch. We will detail the numerical investigations into MHD shear generation, longitudinal and shear stress coupling, timing of wave interactions, and transmission of shear at material interfaces.

Haill, Thomas A.; Alexander, C. Scott; Asay, James Russell

2011-06-01T23:59:59.000Z

98

REVIEW OF NRC APPROVED DIGITAL CONTROL SYSTEMS ANALYSIS  

SciTech Connect (OSTI)

Preliminary design concepts for the proposed Subsurface Repository at Yucca Mountain indicate extensive reliance on modern, computer-based, digital control technologies. The purpose of this analysis is to investigate the degree to which the U. S. Nuclear Regulatory Commission (NRC) has accepted and approved the use of digital control technology for safety-related applications within the nuclear power industry. This analysis reviews cases of existing digitally-based control systems that have been approved by the NRC. These cases can serve as precedence for using similar types of digitally-based control technologies within the Subsurface Repository. While it is anticipated that the Yucca Mountain Project (YMP) will not contain control systems as complex as those required for a nuclear power plant, the review of these existing NRC approved applications will provide the YMP with valuable insight into the NRCs review process and design expectations for safety-related digital control systems. According to the YMP Compliance Program Guidance, portions of various NUREGS, Regulatory Guidelines, and nuclear IEEE standards the nuclear power plant safety related concept would be applied to some of the designs on a case-by-case basis. This analysis will consider key design methods, capabilities, successes, and important limitations or problems of selected control systems that have been approved for use in the Nuclear Power industry. An additional purpose of this analysis is to provide background information in support of further development of design criteria for the YMP. The scope and primary objectives of this analysis are to: (1) Identify and research the extent and precedence of digital control and remotely operated systems approved by the NRC for the nuclear power industry. Help provide a basis for using and relying on digital technologies for nuclear related safety critical applications. (2) Identify the basic control architecture and methods of key digital control systems approved for use in the nuclear power industry by the NRC. (3) Identify and discuss key design issues, features, benefits, and limitations of these NRC approved digital control systems that can be applied as design guidance and correlated to the Monitored Geologic Repository (MGR) design requirements. (4) Identify codes and standards used in the design of these NRC approved digital control systems and discuss their possible applicability to the design of a subsurface nuclear waste repository. (5) Evaluate the NRC approved digital control system's safety, reliability and maintainability features and issues. Apply these to MGR design methodologies and requirements. (6) Provide recommendations for use in developing design criteria in the System Description Documents for the digital control systems of the subsurface nuclear waste repository at Yucca Mountain. (7) Develop recommendations for applying NRC approval methods for digital control systems for the subsurface nuclear waste repository at Yucca Mountain. This analysis will focus on the development of the issues, criteria and methods used and required for identifying the appropriate requirements for digital based control systems. Attention will be placed on development of recommended design criteria for digital controls including interpretation of codes, standards and regulations. Attention will also focus on the use of digital controls and COTS (Commercial Off-the-shelf) technology and equipment in selected NRC approved digital control systems, and as referenced in applicable codes, standards and regulations. The analysis will address design issues related to COTS technology and how they were dealt with in previous NRC approved digital control systems.

D.W. Markman

1999-09-17T23:59:59.000Z

99

E-Print Network 3.0 - applying geostatistical analysis Sample...  

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

Geostatistical Analyst Summary: Welcome to ArcGIS Geostatistical Analyst 1 Exploratory spatial data analysis 2 Semivariogram modeling 3... of geostatistical analysis 49...

100

Decision Analysis Science Modeling for Application and Fielding Selection Applied to Metal Decontamination Technologies  

SciTech Connect (OSTI)

During the decontamination and decommissioning (D and D) activities being conducted by the U.S. Department of Energy (DOE), approximately 550,000 metric tons of contaminated metal will be generated by the disposition of contaminated buildings. The majority of the structural steel is considered to be radiologically contaminated. The D and D activities require the treatment of the structural steel to reduce occupational and environmental radiological exposures during dismantlement. Treatment technologies may also be required for possible recycling. Many proven commercial treatment technologies are available. These treatment processes vary in aggressiveness, safety requirements, secondary waste generation, necessary capital, and operation and maintenance costs. Choosing the appropriate technology to meet the decontamination objectives for structural steel is a difficult process. A single information source comparing innovative and nuclear and non-nuclear technologies in the areas of safety, cost and effectiveness is not currently commercially available to perform a detailed analysis. This study presents comparable data related to operation and maintenance, cost, and health and safely aspects of three readily available technologies and one innovative technology for nuclear decontamination. The technologies include Advance Recyclable Media System (ARMS{trademark}), NELCO Porta Shot Blast{trademark} (JHJ-2000), Pegasus Coating Removal System 7 (PCRS-7) and the innovative laser ablation technology called the Yag Eraser{trademark}.

Lagos, L.E.; Ebadian, M.A.

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Agricultural capital project analysis system  

E-Print Network [OSTI]

analysis. Three specific objectives were established: (1) To select the most suitable procedures for economic and finan- cial evaluation of agricultural projects in developing countries, in- cluding the incorporation of an appropriate sensitivity..., Mercedes and Segismundo Lopez. TABLE OF CONTENTS INTRODUCTION General Objectives Procedure Page 1 1 3 4 LITERATURE REVIEW Evaluation Financial Evaluation Payback Period Accounting Rate of Return Net Present Value Internal Rate of Return...

Lopez, Ramon Antonio

2012-06-07T23:59:59.000Z

102

Satellite System Safety Analysis Using STPA  

E-Print Network [OSTI]

Traditional hazard analysis techniques based on failure models of accident causality, such as the probabilistic risk assessment (PRA) method currently used at NASA, are inadequate for analyzing safety at the system level. ...

Dunn, Nicholas Connor

2013-01-01T23:59:59.000Z

103

Power System Transient Stability Analysis through a Homotopy Analysis Method  

SciTech Connect (OSTI)

As an important function of energy management systems (EMSs), online contingency analysis plays an important role in providing power system security warnings of instability. At present, N-1 contingency analysis still relies on time-consuming numerical integration. To save computational cost, the paper proposes a quasi-analytical method to evaluate transient stability through time domain periodic solutions’ frequency sensitivities against initial values. First, dynamic systems described in classical models are modified into damping free systems whose solutions are either periodic or expanded (non-convergent). Second, because the sensitivities experience sharp changes when periodic solutions vanish and turn into expanded solutions, transient stability is assessed using the sensitivity. Third, homotopy analysis is introduced to extract frequency information and evaluate the sensitivities only from initial values so that time consuming numerical integration is avoided. Finally, a simple case is presented to demonstrate application of the proposed method, and simulation results show that the proposed method is promising.

Wang, Shaobu; Du, Pengwei; Zhou, Ning

2014-04-01T23:59:59.000Z

104

Characterization of Multicrystalline Silicon Modules with System Bias Voltage Applied in Damp Heat  

SciTech Connect (OSTI)

As it is considered economically favorable to serially connect modules to build arrays with high system voltage, it is necessary to explore potential long-term degradation mechanisms the modules may incur under such electrical potential. We performed accelerated lifetime testing of multicrystalline silicon PV modules in 85 degrees C/ 85% relative humidity and 45 degrees C/ 30% relative humidity while placing the active layer in either positive or negative 600 V bias with respect to the grounded module frame. Negative bias applied to the active layer in some cases leads to more rapid and catastrophic module power degradation. This is associated with significant shunting of individual cells as indicated by electroluminescence, thermal imaging, and I-V curves. Mass spectroscopy results support ion migration as one of the causes. Electrolytic corrosion is seen occurring with the silicon nitride antireflective coating and silver gridlines, and there is ionic transport of metallization at the encapsulant interface observed with damp heat and applied bias. Leakage current and module degradation is found to be highly dependent upon the module construction, with factors such as encapsulant and front glass resistivity affecting performance. Measured leakage currents range from about the same seen in published reports of modules deployed in Florida (USA) and is accelerated to up to 100 times higher in the environmental chamber testing.

Hacke, P.; Kempe, M.; Terwilliger, K.; Glick, S.; Call, N.; Johnston, S.; Kurtz, S.

2011-07-01T23:59:59.000Z

105

Sandia National Laboratories: Systems Analysis  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted for US PatentOperationalforRenewableEnergySolarEnergyAnalysis

106

The Analysis of McMonigal,Lewis and O'Byrne applied to the Natario Warp Drive Spacetime  

E-Print Network [OSTI]

The Analysis of McMonigal,Lewis and O'Byrne applied to the Natario Warp Drive Spacetime Fernando Loup Residencia de Estudantes Universitas Lisboa Portugal June 26, 2012 Abstract Warp Drives Relativity. There are at the present moment two known solutions: The Alcubierre warp drive discovered in 1994

Paris-Sud XI, Université de

107

The analysis of Lobo and Visser applied to both Natario and Casimir warp drives. Physical reactions of gravitational repulsive behavior  

E-Print Network [OSTI]

The analysis of Lobo and Visser applied to both Natario and Casimir warp drives. Physical reactions of General Relativity. There are at the present moment two known solutions: The Alcubierre warp drive discovered in 1994 and the Natario warp drive discovered in 2001. The major drawback concerning warp drives

Boyer, Edmond

108

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of chilled water pumps  

E-Print Network [OSTI]

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of HVAC equipment using variable speed drive (VSD) is an Energy Conservation Opportunity (ECO) which can

Paris-Sud XI, Université de

109

Sensitivity analysis of large system of chemical kinetic parameters for engine combustion simulation  

SciTech Connect (OSTI)

In this study, the authors applied the state-of-the art sensitivity methods to downselect system parameters from 4000+ to 8, (23000+ -> 4000+ -> 84 -> 8). This analysis procedure paves the way for future works: (1) calibrate the system response using existed experimental observations, and (2) predict future experiment results, using the calibrated system.

Hsieh, H; Sanz-Argent, J; Petitpas, G; Havstad, M; Flowers, D

2012-04-19T23:59:59.000Z

110

VISION 21 SYSTEMS ANALYSIS METHODOLOGIES  

SciTech Connect (OSTI)

Under the sponsorship of the U.S. Department of Energy/National Energy Technology Laboratory, a multi-disciplinary team led by the Advanced Power and Energy Program of the University of California at Irvine is defining the system engineering issues associated with the integration of key components and subsystems into power plant systems that meet performance and emission goals of the Vision 21 program. The study efforts have narrowed down the myriad of fuel processing, power generation, and emission control technologies to selected scenarios that identify those combinations having the potential to achieve the Vision 21 program goals of high efficiency and minimized environmental impact while using fossil fuels. The technology levels considered are based on projected technical and manufacturing advances being made in industry and on advances identified in current and future government supported research. Included in these advanced systems are solid oxide fuel cells and advanced cycle gas turbines. The results of this investigation will serve as a guide for the U. S. Department of Energy in identifying the research areas and technologies that warrant further support.

G.S. Samuelsen; A. Rao; F. Robson; B. Washom

2003-08-11T23:59:59.000Z

111

An evaluation of high viscosity, crowded phase emulsions as herbicide carriers when applied through the bifluid spray system  

E-Print Network [OSTI]

AN EVALUATION OF HIGH VISCOSITY, CROWDED PHASE EMULSIONS AS HERBICIDE CARRIERS WHEN APPLIED THROUGH THE BIFLUID SPRAY SYSTEM A Thesis By PHIL J, PHILLIPS 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 May 1963 Range Management AN EVALUATION OF HIGH VISCOSITY, CROWDED PHASE EMULSIONS AS HERBICIDE CARRIERS WHEN APPLIED THROUGH THE BIFLUID SPRAY SYSTEM A Thesis By PHIL J...

Phillips, Phil J

1963-01-01T23:59:59.000Z

112

Evaluation of energy system analysis techniques for identifying underground facilities  

SciTech Connect (OSTI)

This report describes the results of a study to determine the feasibility and potential usefulness of applying energy system analysis techniques to help detect and characterize underground facilities that could be used for clandestine activities. Four off-the-shelf energy system modeling tools were considered: (1) ENPEP (Energy and Power Evaluation Program) - a total energy system supply/demand model, (2) ICARUS (Investigation of Costs and Reliability in Utility Systems) - an electric utility system dispatching (or production cost and reliability) model, (3) SMN (Spot Market Network) - an aggregate electric power transmission network model, and (4) PECO/LF (Philadelphia Electric Company/Load Flow) - a detailed electricity load flow model. For the purposes of most of this work, underground facilities were assumed to consume about 500 kW to 3 MW of electricity. For some of the work, facilities as large as 10-20 MW were considered. The analysis of each model was conducted in three stages: data evaluation, base-case analysis, and comparative case analysis. For ENPEP and ICARUS, open source data from Pakistan were used for the evaluations. For SMN and PECO/LF, the country data were not readily available, so data for the state of Arizona were used to test the general concept.

VanKuiken, J.C.; Kavicky, J.A.; Portante, E.C. [and others

1996-03-01T23:59:59.000Z

113

Analysis of Fuel Cell Systems Rangan Banerjee  

E-Print Network [OSTI]

Analysis of Fuel Cell Systems Rangan Banerjee Energy Systems Engineering IIT Bombay Lecture in CEP Course on `Fuel Cell' at IIT 14th November 2007 #12;Overview of Talk Energy Crisis ­ Motivation for fuel biological Hydrogen Gasification Fermentation Cracking + Shift Reaction Fuel Cell #12;ENERGY FLOW DIAGRAM

Banerjee, Rangan

114

Energy, Environmental, and Economic Systems Analysis  

E-Print Network [OSTI]

and deregulated, shifting control from a single decision maker (i.e., a single, government-owned electric utility determining electricity consumption (customer agents), unit commitment (generation companies), bilateralEnergy, Environmental, and Economic Systems Analysis Electricity Market Complex Adaptive System

115

Energy Engineering & Systems Analysis Success Stories  

E-Print Network [OSTI]

Energy Engineering & Systems Analysis Success Stories For further information, contact: Dileep Singh, dsingh@anl.gov NOx/O2 Sensors for High Temperature Applications In vehicle engines, monitoring with an internal reference gas system. The Solution Using a unique deformation bonding method that joins

Kemner, Ken

116

Energy Engineering & Systems Analysis Success Stories  

E-Print Network [OSTI]

Energy Engineering & Systems Analysis Success Stories Helping Make the U.S. Power Grid Smarter-way communication technologies into the power grid, the nation will have a more robust and efficient system to the limit, requiring upgrades. The Solution A multidisciplinary mix of scientists and engineers from Argonne

Kemner, Ken

117

PLT data acquisition and analysis system  

SciTech Connect (OSTI)

The data acquisition and analysis system for PLT (Princeton Large Torus) is being moved from a DEC-10 to a VAX 11/785. Most of the major diagnostics are currently running on the VAX, with approximately 1 Mbyte of data being taken each shot. The system uses the MIT model data system (MDS) for acquisition and archival of data and the PPPL event-controlled scheduler (ECS) for scheduling. The analysis programs use the MDS data retrieval subroutines which deliver correctly calibrated results to the user program.

Murphy, J.A.; Gibney, T.R.

1986-08-01T23:59:59.000Z

118

Waste Feed Delivery Transfer System Analysis  

SciTech Connect (OSTI)

This document provides a documented basis for the required design pressure rating and pump pressure capacity of the Hanford Site waste-transfer system in support of the waste feed delivery to the privatization contractor for vitrification. The scope of the analysis includes the 200 East Area double-shell tank waste transfer pipeline system and the associated transfer system pumps for a11 Phase 1B and Phase 2 waste transfers from AN, AP, AW, AY, and A2 Tank Farms.

JULYK, L.J.

2000-05-05T23:59:59.000Z

119

APPLIED PHYSICS APPLIED PHYSICS  

E-Print Network [OSTI]

MSc APPLIED PHYSICS #12;MSc APPLIED PHYSICS This taught Masters course is based on the strong research in Applied Physics in the University's Department of Physics. The department has an impressive photonics and quantum optics, Physics and the Life Sciences, and solid state physics. The knowledge gained

Mottram, Nigel

120

Security Analysis and Project Management Systems | ornl.gov  

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

Security Analysis and Project Management Systems SHARE Security Analysis and Project Management Systems ORNL brings together the subject matter experts with programmers to design,...

Note: This page contains sample records for the topic "applied systems 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

Earned Value Management System (EVMS) and Project Analysis Standard...  

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

Management System (EVMS) and Project Analysis Standard Operating Procedure (EPASOP)- March 2014 Earned Value Management System (EVMS) and Project Analysis Standard Operating...

122

Top Hat Pressure System Hyperbaric Test Analysis | Department...  

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

Top Hat Pressure System Hyperbaric Test Analysis Top Hat Pressure System Hyperbaric Test Analysis This file contains data from pressure measurements inside Top Hat 4....

123

Hybrid Ground Source System Analysis and Tool Development | Department...  

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

Hybrid Ground Source System Analysis and Tool Development Hybrid Ground Source System Analysis and Tool Development Project objectives: 1. Compile filtered hourly data for three...

124

Hydrogen Storage Systems Analysis Meeting: Summary Report, March...  

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

Meeting: Summary Report, March 29, 2005 Hydrogen Storage Systems Analysis Meeting: Summary Report, March 29, 2005 This report highlights DOE's systems analysis work related to...

125

US DRIVE Vehicle Systems and Analysis Technical Team Roadmap...  

Energy Savers [EERE]

Vehicle Systems and Analysis Technical Team Roadmap US DRIVE Vehicle Systems and Analysis Technical Team Roadmap VSATT provides the analytic support and subsystem characterizations...

126

RAMS (Risk Analysis - Modular System) methodology  

SciTech Connect (OSTI)

The Risk Analysis - Modular System (RAMS) was developed to serve as a broad scope risk analysis tool for the Risk Assessment of the Hanford Mission (RAHM) studies. The RAHM element provides risk analysis support for Hanford Strategic Analysis and Mission Planning activities. The RAHM also provides risk analysis support for the Hanford 10-Year Plan development activities. The RAMS tool draws from a collection of specifically designed databases and modular risk analysis methodologies and models. RAMS is a flexible modular system that can be focused on targeted risk analysis needs. It is specifically designed to address risks associated with overall strategy, technical alternative, and `what if` questions regarding the Hanford cleanup mission. RAMS is set up to address both near-term and long-term risk issues. Consistency is very important for any comparative risk analysis, and RAMS is designed to efficiently and consistently compare risks and produce risk reduction estimates. There is a wide range of output information that can be generated by RAMS. These outputs can be detailed by individual contaminants, waste forms, transport pathways, exposure scenarios, individuals, populations, etc. However, they can also be in rolled-up form to support high-level strategy decisions.

Stenner, R.D.; Strenge, D.L.; Buck, J.W. [and others

1996-10-01T23:59:59.000Z

127

Fuel Cycle System Analysis Handbook  

SciTech Connect (OSTI)

This Handbook aims to improve understanding and communication regarding nuclear fuel cycle options. It is intended to assist DOE, Campaign Managers, and other presenters prepare presentations and reports. When looking for information, check here. The Handbook generally includes few details of how calculations were performed, which can be found by consulting references provided to the reader. The Handbook emphasizes results in the form of graphics and diagrams, with only enough text to explain the graphic, to ensure that the messages associated with the graphic is clear, and to explain key assumptions and methods that cause the graphed results. Some of the material is new and is not found in previous reports, for example: (1) Section 3 has system-level mass flow diagrams for 0-tier (once-through), 1-tier (UOX to CR=0.50 fast reactor), and 2-tier (UOX to MOX-Pu to CR=0.50 fast reactor) scenarios - at both static and dynamic equilibrium. (2) To help inform fast reactor transuranic (TRU) conversion ratio and uranium supply behavior, section 5 provides the sustainable fast reactor growth rate as a function of TRU conversion ratio. (3) To help clarify the difference in recycling Pu, NpPu, NpPuAm, and all-TRU, section 5 provides mass fraction, gamma, and neutron emission for those four cases for MOX, heterogeneous LWR IMF (assemblies mixing IMF and UOX pins), and a CR=0.50 fast reactor. There are data for the first 10 LWR recycle passes and equilibrium. (4) Section 6 provides information on the cycle length, planned and unplanned outages, and TRU enrichment as a function of fast reactor TRU conversion ratio, as well as the dilution of TRU feedstock by uranium in making fast reactor fuel. (The recovered uranium is considered to be more pure than recovered TRU.) The latter parameter impacts the required TRU impurity limits specified by the Fuels Campaign. (5) Section 7 provides flows for an 800-tonne UOX separation plant. (6) To complement 'tornado' economic uncertainty diagrams, which show at a glance combined uncertainty information, section 9.2 has a new set of simpler graphs that show the impact on fuel cycle costs for once through, 1-tier, and 2-tier scenarios as a function of key input parameters.

Steven J. Piet; Brent W. Dixon; Dirk Gombert; Edward A. Hoffman; Gretchen E. Matthern; Kent A. Williams

2009-06-01T23:59:59.000Z

128

Life-Cycle Analysis Results of Geothermal Systems in Comparison...  

Energy Savers [EERE]

Life-Cycle Analysis Results of Geothermal Systems in Comparison to Other Power Systems Life-Cycle Analysis Results of Geothermal Systems in Comparison to Other Power Systems A...

129

E-Print Network 3.0 - applied ecosystem analysis Sample Search...  

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

life cycle assessment analysis (LCA), the article... of the problems with LCA. Linking industrial models with spatially explicit, dynamic and site-specific ecosystem......

130

Thermal analysis of the ATLAS dump system  

E-Print Network [OSTI]

The dump system of the ATLAS Magnet, situated on third level of the USA15 cavern is an assembly of diodes and dump resistors through which the energy stored in the Magnet is dissipated when running down the magnet current to zero. The dump system is permanently connected to the Magnet through a system of bus bars and is able to dissipate about 1.5 GJ of energy in 3 hours. The goal of this thermal analysis, performed by ST/CV, is to understand whether the heat released by the dump system can be removed by free convection into the PX15 shaft or if forced ventilation is needed

Wichrowska Polok, I

2003-01-01T23:59:59.000Z

131

Applied & Computational MathematicsChallenges for the Design and Control of Dynamic Energy Systems  

SciTech Connect (OSTI)

The Energy Independence and Security Act of 2007 (EISA) was passed with the goal 'to move the United States toward greater energy independence and security.' Energy security and independence cannot be achieved unless the United States addresses the issue of energy consumption in the building sector and significantly reduces energy consumption in buildings. Commercial and residential buildings account for approximately 40% of the U.S. energy consumption and emit 50% of CO{sub 2} emissions in the U.S. which is more than twice the total energy consumption of the entire U.S. automobile and light truck fleet. A 50%-80% improvement in building energy efficiency in both new construction and in retrofitting existing buildings could significantly reduce U.S. energy consumption and mitigate climate change. Reaching these aggressive building efficiency goals will not happen without significant Federal investments in areas of computational and mathematical sciences. Applied and computational mathematics are required to enable the development of algorithms and tools to design, control and optimize energy efficient buildings. The challenge has been issued by the U.S. Secretary of Energy, Dr. Steven Chu (emphasis added): 'We need to do more transformational research at DOE including computer design tools for commercial and residential buildings that enable reductions in energy consumption of up to 80 percent with investments that will pay for themselves in less than 10 years.' On July 8-9, 2010 a team of technical experts from industry, government and academia were assembled in Arlington, Virginia to identify the challenges associated with developing and deploying newcomputational methodologies and tools thatwill address building energy efficiency. These experts concluded that investments in fundamental applied and computational mathematics will be required to build enabling technology that can be used to realize the target of 80% reductions in energy consumption. In addition the finding was that there are tools and technologies that can be assembled and deployed in the short term - the next 3-5 years - that can be used to significantly reduce the cost and time effective delivery of moderate energy savings in the U.S. building stock. Simulation tools, which are a core strength of current DOE computational research programs, provide only a part of the answer by providing a basis for simulation enabled design. New investments will be required within a broad dynamics and control research agenda which must focus on dynamics, control, optimization and simulation of multi-scale energy systems during design and operation. U.S. investments in high performance and high productivity computing (HP2C) should be leveraged and coupled with advances in dynamics and control to impact both the existing building stock through retrofits and also new construction. The essential R&D areas requiring investment are: (1) Characterizing the Dynamics of Multi-scale Energy Systems; (2) Control and Optimization Methodologies of Multi-scale Energy Systems Under Uncertainty; and (3) Multiscale Modeling and Simulation Enabled Design and Operation. The concept of using design and control specific computational tools is a new idea for the building industry. The potential payoffs in terms of accelerated design cycle times, performance optimization and optimal supervisory control to obtain and maintain energy savings are huge. Recent advances in computational power, computer science, and mathematical algorithms offer the foundations to address the control problems presented by the complex dynamics of whole building systems. The key areas for focus and associated metrics with targets for establishing competitiveness in energy efficient building design and operation are: (1) Scalability - Current methodology and tools can provide design guidance for very low energy buildings in weeks to months; what is needed is hours to days. A 50X improvement is needed. (2) Installation and commissioning - Current methodology and tools can target a three month window for commissioni

Brown, D L; Burns, J A; Collis, S; Grosh, J; Jacobson, C A; Johansen, H; Mezic, I; Narayanan, S; Wetter, M

2011-03-10T23:59:59.000Z

132

Analysis of the cattle histocompatibility system  

E-Print Network [OSTI]

antilymphocytic sera (ALS) revealed a minimum of eight, two, four snd eight antibody specificities present in ALS 1, 2, 3 and 4, respectively. The heterogeneity of the histocompatibility system was demonstrated by red. and white blood cell absorptions... Antibodies in Normal Serum Titration Analysis of ALS Analysis of Red Blood Cell Absorptions Antigenic Relationship Between Sperm Cells and WBC Absorbing Properties of Sperm and WBC Solubilates Electrophoretic and Electrofocusing Characterization...

Bryan, Christopher Fulton

2012-06-07T23:59:59.000Z

133

Dynamical System Analysis for a phantom model  

E-Print Network [OSTI]

The paper deals with a dynamical system analysis related to phantom cosmological model . Here gravity is coupled to phantom scalar field having scalar coupling function and a potential. The field equations are reduced to an autonomous dynamical system by a suitable redefinition of the basic variables and assuming some suitable form of the potential function. Finally, critical points are evaluated, their nature have been analyzed and corresponding cosmological scenario has been discussed.

Nilanjana Mahata; Subenoy Chakraborty

2014-04-24T23:59:59.000Z

134

Evaluation of the use of engineering judgements applied to analytical human reliablity analysis methods (HRA)  

E-Print Network [OSTI]

Low Dependency MCR Main Control Room viii MFW Main Feed Water MLB Main Line Break MBLOCA Medium Break Loss of Coolant Accident MD Medium Dependency MAAP Modular Accident Analysis Program NPSH Net Positive Suction Head ND...

Kohlhepp, Katherine D.

2006-04-12T23:59:59.000Z

135

Analysis of Photovoltaic System Energy Performance Evaluation Method  

SciTech Connect (OSTI)

Documentation of the energy yield of a large photovoltaic (PV) system over a substantial period can be useful to measure a performance guarantee, as an assessment of the health of the system, for verification of a performance model to then be applied to a new system, or for a variety of other purposes. Although the measurement of this performance metric might appear to be straight forward, there are a number of subtleties associated with variations in weather and imperfect data collection that complicate the determination and data analysis. A performance assessment is most valuable when it is completed with a very low uncertainty and when the subtleties are systematically addressed, yet currently no standard exists to guide this process. This report summarizes a draft methodology for an Energy Performance Evaluation Method, the philosophy behind the draft method, and the lessons that were learned by implementing the method.

Kurtz, S.; Newmiller, J.; Kimber, A.; Flottemesch, R.; Riley, E.; Dierauf, T.; McKee, J.; Krishnani, P.

2013-11-01T23:59:59.000Z

136

Network and adaptive system of systems modeling and analysis.  

SciTech Connect (OSTI)

This report documents the results of an LDRD program entitled ''Network and Adaptive System of Systems Modeling and Analysis'' that was conducted during FY 2005 and FY 2006. The purpose of this study was to determine and implement ways to incorporate network communications modeling into existing System of Systems (SoS) modeling capabilities. Current SoS modeling, particularly for the Future Combat Systems (FCS) program, is conducted under the assumption that communication between the various systems is always possible and occurs instantaneously. A more realistic representation of these communications allows for better, more accurate simulation results. The current approach to meeting this objective has been to use existing capabilities to model network hardware reliability and adding capabilities to use that information to model the impact on the sustainment supply chain and operational availability.

Lawton, Craig R.; Campbell, James E. Dr. (.; .); Anderson, Dennis James; Eddy, John P.

2007-05-01T23:59:59.000Z

137

ENGINEERING 12 SPRING 2008 PHYSICAL SYSTEMS ANALYSIS  

E-Print Network [OSTI]

on the primary and secondary coils. #12;ENGINEERING 12, SPRING 2008 2/3 LABORATORY 1 One of the most commonENGINEERING 12 SPRING 2008 PHYSICAL SYSTEMS ANALYSIS LABORATORY 1: TRANSFORMERS Objectives or counterclockwise). In the following discussion the subscript 1 will be used for the primary coil and the subscript

Moreshet, Tali

138

PRESSURE TRANSIENT ANALYSIS FOR COMPOSITE SYSTEMS  

E-Print Network [OSTI]

SGP-TR-117 PRESSURE TRANSIENT ANALYSIS FOR COMPOSITE SYSTEMS Ani1 Kumar Ambastha October 1988 my graduate studies. #12;f #12;ABSTRACT A composite reservoir model is used to analyze well. A composite reservoir is made up of two or more regions. Each region has its own rock and fluid properties

Stanford University

139

Energy Engineering & Systems Analysis Success Stories  

E-Print Network [OSTI]

Energy Engineering & Systems Analysis Success Stories For further information, contact: Seth Snyder greenhouse gas emissions, and lower energy costs," said biochemical engineer Seth Snyder. Resin Wafer for Excellence in Technology Transfer for this separations technology. A team led by Argonne biochemical engineer

Kemner, Ken

140

Fluid Flow and Thermodynamic Analysis of a Wing Anti-Icing System  

E-Print Network [OSTI]

is installed on most passenger airplanes. It introduces hot bleeding air from the power plant into the wing-mail: liu@utias.utoronto.ca Received 26 August 2003. 1. INTRODUCTION The thermal anti-icing system of this paper is to apply the existing CFD tools to assist the system modeling and simulation analysis

Liu, Hugh H.T.

Note: This page contains sample records for the topic "applied systems 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

analysis pgaa system: Topics by E-print Network  

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

Complex Adaptive System Division Center for Energy, Environmental & Economic Systems Analysis Energy systems are being privatized. Approach Argonne's Center for Energy,...

142

analysis penetrometer system: Topics by E-print Network  

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

Complex Adaptive System Division Center for Energy, Environmental & Economic Systems Analysis Energy systems are being privatized. Approach Argonne's Center for Energy,...

143

Analysis of Petroleum Technology Advances Through Applied Research by Independent Oil Producers  

SciTech Connect (OSTI)

Petroleum Technology Advances Through Applied Research by Independent Oil Producers is a program of the National Oil Research Program, U.S. Department of Energy. Between 1995 and 1998, the program competitively selected and cost-shared twenty-two projects with small producers. The purpose was to involve small independent producers in testing technologies of interest to them that would advance (directly or indirectly) one or more of four national program objectives: (1) Extend the productive life of reservoirs; (2) Increase production and/or reserves; (3) Improve environmental performance; and (4) Broaden the exchange of technology information.

Brashear, Jerry P.; North, Walter B.; Thomas Charles P.; Becker, Alan B.; Faulder, David D.

2000-01-12T23:59:59.000Z

144

An analysis of fluid flow by electrical analogy as applied to air ducts  

E-Print Network [OSTI]

. 0 10. 0 14. 9 9-4 12. 0 VELOCITY FPM 1600 1460 1570 1300 TOTAL PRESSURE DROP IN. WATER 0 04 0. 10 0 02 o o8 o. o8 TABLE 3 21 PART III ALMQJATING CUHREYZ N. . GAME CALCULATOR APPLIED TO THE TOTAL PiiBSURE DROP METHOD GIVEN... resistance for Section B is then read to be 13. 3$ ohms which gives an R oi' 38 ' 2 ohms. From Figure 4 the velocity is found to be 1400 fpm and duct diameter 14. 9 inches. fhe voltage drop for Section D is read to be 10. 0 volts, giving a total head loss...

Howard, Charles Pinto

2012-06-07T23:59:59.000Z

145

Coupled thermal analysis applied to the study of the rod ejection accident  

SciTech Connect (OSTI)

An advanced methodology for the assessment of fuel-rod thermal margins under RIA conditions has been developed by AREVA NP SAS. With the emergence of RIA analytical criteria, the study of the Rod Ejection Accident (REA) would normally require the analysis of each fuel rod, slice by slice, over the whole core. Up to now the strategy used to overcome this difficulty has been to perform separate analyses of sampled fuel pins with conservative hypotheses for thermal properties and boundary conditions. In the advanced methodology, the evaluation model for the Rod Ejection Accident (REA) integrates the node average fuel and coolant properties calculation for neutron feedback purpose as well as the peak fuel and coolant time-dependent properties for criteria checking. The calculation grid for peak fuel and coolant properties can be specified from the assembly pitch down to the cell pitch. The comparative analysis of methodologies shows that coupled methodology allows reducing excessive conservatism of the uncoupled approach. (authors)

Gonnet, M. [AREVA NP, TOUR AREVA - 1 Place Jean MILLIER, 92084 Paris La Defense Cedex (France)

2012-07-01T23:59:59.000Z

146

Statistical techniques applied to aerial radiometric surveys (STAARS): principal components analysis user's manual. [NURE program  

SciTech Connect (OSTI)

A Principal Components Analysis (PCA) has been written to aid in the interpretation of multivariate aerial radiometric data collected by the US Department of Energy (DOE) under the National Uranium Resource Evaluation (NURE) program. The variations exhibited by these data have been reduced and classified into a number of linear combinations by using the PCA program. The PCA program then generates histograms and outlier maps of the individual variates. Black and white plots can be made on a Calcomp plotter by the application of follow-up programs. All programs referred to in this guide were written for a DEC-10. From this analysis a geologist may begin to interpret the data structure. Insight into geological processes underlying the data may be obtained.

Koch, C.D.; Pirkle, F.L.; Schmidt, J.S.

1981-01-01T23:59:59.000Z

147

Applying geologic sensitivity analysis to environmental risk management: The financial implications  

SciTech Connect (OSTI)

The financial risks associated with environmental contamination can be staggering and are often difficult to identify and accurately assess. Geologic sensitivity analysis is gaining recognition as a significant and useful tool that can empower the user with crucial information concerning environmental risk management and brownfield redevelopment. It is particularly useful when (1) evaluating the potential risks associated with redevelopment of historical industrial facilities (brownfields) and (2) planning for future development, especially in areas of rapid development because the number of potential contaminating sources often increases with an increase in economic development. An examination of the financial implications relating to geologic sensitivity analysis in southeastern Michigan from numerous case studies indicate that the environmental cost of contamination may be 100 to 1,000 times greater at a geologically sensitive location compared to the least sensitive location. Geologic sensitivity analysis has demonstrated that near-surface geology may influence the environmental impact of a contaminated site to a greater extent than the amount and type of industrial development.

Rogers, D.T.

1999-07-01T23:59:59.000Z

148

IRRADIANCE MAPS APPLIED FOR THE PERFORMANCE ASSESSMENT OF PV SYSTEMS -A CASE STUDY FOR THE GERMAN FEDERAL STATE OF SAXONY  

E-Print Network [OSTI]

services, both general or dedicated to solar energy application, are in use. Examples for these typesIRRADIANCE MAPS APPLIED FOR THE PERFORMANCE ASSESSMENT OF PV SYSTEMS - A CASE STUDY FOR THE GERMAN, D-01314 Dresden, Germany ABSTRACT: For the estimation of the expected annual energy yield

Heinemann, Detlev

149

Applied Climate Information System -NOAA Regional Climate Centers 727 Hardin Hall, 3310 Holdrege Street, Lincoln, NE 68583-0997  

E-Print Network [OSTI]

Applied Climate Information System - NOAA Regional Climate Centers ACIS 727 Hardin Hall, 3310-8763 High Plains Regional Climate Center Climate Services HPRCC provides the public with several ways to access climate data and information. Whether via direct contact, website access, or through

Nebraska-Lincoln, University of

150

Tank waste remediation system mission analysis report  

SciTech Connect (OSTI)

This document describes and analyzes the technical requirements that the Tank Waste Remediation System (TWRS) must satisfy for the mission. This document further defines the technical requirements that TWRS must satisfy to supply feed to the private contractors` facilities and to store or dispose the immobilized waste following processing in these facilities. This document uses a two phased approach to the analysis to reflect the two-phased nature of the mission.

Acree, C.D.

1998-01-09T23:59:59.000Z

151

Systems Analysis Success Stories | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeEnvironment,Institutes and1 SpecialMaximizing Opportunities |batteriesSystems Analysis

152

Production-systems analysis for fractured wells  

SciTech Connect (OSTI)

Production-systems analysis has been in use for many years to design completion configurations on the basis of an expected reservoir capacity. The most common equations used for the reservoir calculations are for steady-state radial flow. Most hydraulically fractured wells require the use of an unsteady-state production simulator to predict the higher flow rates associated with the stimulated well. These high flow rates may present problems with excessive pressure drops through production tubing designed for radial-flow production. Therefore, the unsteady-state nature of fractured-well production precludes the use of steady-state radial-flow inflow performance relationships (IPR's) to calculate reservoir performance. An accurate prediction of fractured-well production must be made to design the most economically efficient production configuration. It has been suggested in the literature that a normalized reference curve can be used to generate the IPR's necessary for production-systems analysis. However, this work shows that the reference curve for fractured-well response becomes time-dependent when reservoir boundaries are considered. A general approach for constructing IPR curves is presented, and the use of an unsteady-state fractured-well-production simulator coupled with the production-systems-analysis approach is described. A field case demonstrates the application of this method to fractured wells.

Hunt, J.L. (Halliburton Services (US))

1988-11-01T23:59:59.000Z

153

Norm estimates of complex symmetric opera-tors applied to quantum systems  

E-Print Network [OSTI]

for computing the norm of a compact complex symmetric operator. This ob- servation is applied to two concrete symmetric operator [10]. For certain unbounded operators with compact resolvent, the refined polar with non-selfadjoint operators is much more difficult than with self- adjoint operators due to the lack

154

Hydrgoen Storage Systems Analysis Working Group Meeting Summary...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Analysis Working Group Meeting Summary Report Summary report from the May 17, 2007 Hydrogen Storage Systems Analysis Working Group Meeting ssawgmaysummary.pdf More...

155

A comprehensive approach to complex system product development : operations management tools applied to automotive design  

E-Print Network [OSTI]

The research is based on observations made over a two-year period with the Closures Systems Integrators or CSIs (supervisory engineers who coordinate attribute balance and system decisions for conflicting door attributes) ...

Noor, Muhammad Jehanzeb, 1982-

2007-01-01T23:59:59.000Z

156

Descriptor-Based Analysis Applied to HCN Synthesis from NH3 and CH4  

SciTech Connect (OSTI)

The design of solid metal catalysts using theoretical methods has been a long-standing goal in heterogeneous catalysis. Recent developments in methodology and computer technology as well as the establishment of a descriptor-based approach for the analysis of reaction mechanisms and trends across the periodic table allow for the fast screening for new catalytic materials and have lead to first examples of computational discoveries of new materials. The underlying principles of the descriptor-based approach are the existence of relations between the surface electronic structure, adsorption energies and activation barriers that result in volcano-shaped activity plots as function of simple descriptors, such as atomic binding energies or the d-band center. Linear scaling relations have been established between the adsorption energies of hydrogen-containing molecules such as CH{sub x}, NH{sub x}, OH{sub x} and SH{sub x} and the C, N O and S adsorption energies on transition-metal surfaces. Transition-state energies have also been shown to scale linearly with adsorption energies in a similar fashion. Recently, a single transition state scaling relation has been identified for a large number of C-C, C-O, C-N, N-O, N-N, and O-O coupling reactions. The scaling relations provide a powerful tool for the investigation of reaction mechanisms and the prediction of potential energy surfaces. They limit the number of independent variables to a few, typically adsorption energies of key atoms. Using this information as input to a microkinetic model provides an understanding of trends in catalytic activity across the transition metals. In most cases a volcano-shaped relation between activity and the key variables, the descriptors, is observed. In the present paper we will provide an example of the approach outlined above and show how one can obtain an understanding of activity/selectivity trends of a reaction with just a few new calculations.

Grabow, L

2011-08-18T23:59:59.000Z

157

Analysis of a piping system for requalification  

SciTech Connect (OSTI)

This paper discusses the global stress analysis required for the seismic/structural requalification of a reactor secondary piping system in which minor defects (flaws) were discovered during a detailed inspection. The flaws in question consisted of weld imperfections. Specifically, it was necessary to establish that the stresses at the flawed sections did not exceed the allowables and that the fatigue life remained within acceptable limits. At the same time the piping system had to be qualified for higher earthquake loads than those used in the original design. To accomplish these objectives the nominal stress distributions in the piping system under the various loads (dead load, thermal load, wind load and seismic load) were determined. First a best estimate finite element model was developed and calculations were performed using the piping analysis modules of the ANSYS Computer Code. Parameter studies were then performed to assess the effect of physically reasonable variations in material, structural, and boundary condition characteristics. The nominal stresses and forces so determined, provided input for more detailed analyses of the flawed sections. Based on the reevaluation, the piping flaws were judged to be benign, i.e., the piping safety margins were acceptable inspite of the increased seismic demand. 13 refs.

Hsieh, B.J.; Tang, Yu.

1992-01-01T23:59:59.000Z

158

Analysis of a piping system for requalification  

SciTech Connect (OSTI)

This paper discusses the global stress analysis required for the seismic/structural requalification of a reactor secondary piping system in which minor defects (flaws) were discovered during a detailed inspection. The flaws in question consisted of weld imperfections. Specifically, it was necessary to establish that the stresses at the flawed sections did not exceed the allowables and that the fatigue life remained within acceptable limits. At the same time the piping system had to be qualified for higher earthquake loads than those used in the original design. To accomplish these objectives the nominal stress distributions in the piping system under the various loads (dead load, thermal load, wind load and seismic load) were determined. First a best estimate finite element model was developed and calculations were performed using the piping analysis modules of the ANSYS Computer Code. Parameter studies were then performed to assess the effect of physically reasonable variations in material, structural, and boundary condition characteristics. The nominal stresses and forces so determined, provided input for more detailed analyses of the flawed sections. Based on the reevaluation, the piping flaws were judged to be benign, i.e., the piping safety margins were acceptable inspite of the increased seismic demand. 13 refs.

Hsieh, B.J.; Tang, Yu

1992-05-01T23:59:59.000Z

159

Applying Systems Engineering in a Renewable Energy Research and Development Environment: Preprint  

SciTech Connect (OSTI)

This paper examines lessons learned in systems engineering research and development at the National Renewable Energy Laboratory and explores new ideas for future process enhancements.

Snyder, N.; Antkowiak, M.

2010-04-01T23:59:59.000Z

160

NREL's System Advisor Model Simplifies Complex Energy Analysis...  

Office of Scientific and Technical Information (OSTI)

NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet) Re-direct Destination: NREL has developed a tool -- the System Advisor Model (SAM) -- that can help...

Note: This page contains sample records for the topic "applied systems 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

K West integrated water treatment system subproject safety analysis document  

SciTech Connect (OSTI)

This Accident Analysis evaluates unmitigated accident scenarios, and identifies Safety Significant and Safety Class structures, systems, and components for the K West Integrated Water Treatment System.

SEMMENS, L.S.

1999-02-24T23:59:59.000Z

162

analysis system midas: Topics by E-print Network  

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

data of the CHAMP satellite. Comparisons are made between vertical electron 14 Systems Analysis Systems Integration Renewable Energy Websites Summary: Domestic energy-based...

163

Automotive and MHE Fuel Cell System Cost Analysis (Text Version...  

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

on previous fuel cell cost analysis studies that we've done for the Department of Energy, beginning with a market analysis, and then completing a system design. The system...

164

Incorporating HVDC's into monitoring and power system analysis  

E-Print Network [OSTI]

This thesis attempts to study the effect of incorporating HVDC's into monitoring and power system analysis. Power system analysis, including load flow and stability studies, and monitoring defines a complete cycle of the impact of HVDC in a power...

Krishnaswamy, Vikram

2002-01-01T23:59:59.000Z

165

Dependable system architecture for businesses : analysis of an enterprise resource planning system  

E-Print Network [OSTI]

This thesis defines the concept of Dependable System Architecture (DSA), evaluation criteria for DSAs and applies those criteria to evaluate SAP, a leading ERP system. The evaluation criteria employ system frameworks, ...

Kittusamy, Kannakumar

2006-01-01T23:59:59.000Z

166

Applying OMG D&C Specification and ECA Rules for Autonomous Distributed Component-based Systems  

E-Print Network [OSTI]

´er´emy Dubus, Philippe Merle INRIA-Futurs Projet Jacquard / LIFL Universit´e des Sciences et Technologies de used to ease design of complex distributed systems. Nevertheless, at runtime, models remain useless of the designer is drastically simplified. Unfortunately, the models of an application are useless once the system

Paris-Sud XI, Université de

167

NREL: Transportation Research - Systems Analysis and Integration  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData andFleet Test and Evaluation PhotoSystems Analysis and

168

Effects of systemic insecticides applied to cotton on Campoletis perdistinctus (Viereck)  

E-Print Network [OSTI]

phosphate) was significantly more toxic to C. ~erdlstlnctus adults than TemilP (2-methyl-2-(. . ethylthio) propionaldehyde 0- (methylcarbamoyl) oxlme) or d1sulfoton. In greenhouse stud1es, cotton plants treated with soil applications of d1sulfoton had...). . . . . . . . . . 1 d lty f C. ~d1 tl t d lt t offered various food substances. . . . . . . . . . . 15 16 Toxicity of Azodrin, Temik and disulfoton applied topically to mixed sexes of C. erdistinctus adults 20 Toxi. c1ty of Azodr1n, Temik and disulfoton fed...

Cate, James Richard

1968-01-01T23:59:59.000Z

169

Review of Methods of Power-Spectrum Analysis as Applied to Super-Kamiokande Solar Neutrino Data  

E-Print Network [OSTI]

To help understand why different published analyses of the Super-Kamiokande solar neutrino data arrive at different conclusions, we have applied six different methods to a standardized problem. The key difference between the various methods rests in the amount of information that each processes. A Lomb-Scargle analysis that uses the mid times of the time bins and ignores experimental error estimates uses the least information. A likelihood analysis that uses the start times, end times, and mean live times, and takes account of the experimental error estimates, makes the greatest use of the available information. We carry out power-spectrum analyses of the Super-Kamiokande 5-day solar neutrino data, using each method in turn, for a standard search band (0 to 50 yr-1). For each method, we also carry out a fixed number (10,000) of Monte-Carlo simulations for the purpose of estimating the significance of the leading peak in each power spectrum. We find that, with one exception, the results of these calculations are compatible with those of previously published analyses. (We are unable to replicate Koshio's recent results.) We find that the significance of the peaks at 9.43 yr-1 and at 43.72 yr-1 increases progressively as one incorporates more information into the analysis procedure.

P. A. Sturrock

2004-08-02T23:59:59.000Z

170

Stability analysis of a nonlinear coupled-core reactor control system  

SciTech Connect (OSTI)

In this paper, stability-equation method is applied to the analysis of a large coupled-core reactor control system having multiple nonlinearities and adjustable parameters. The characteristics of the limit-cycle and the asymptotically stable regions can be easily defined in a parameter plane. A numerical example is given and comparisons with other methods in current literature are made.

Tsay, T.S.; Han, K.W.

1987-12-01T23:59:59.000Z

171

Lessons Learned from the Alternative Fuels Experience and How They Apply to the Development of a Hydrogen-Fueled Transportation System  

SciTech Connect (OSTI)

Report describes efforts to deploy alternative transportation fuels and how those experiences might apply to a hydrogen-fueled transportation system.

Melendez, M.; Theis, K.; Johnson, C.

2007-08-01T23:59:59.000Z

172

NETL's High-Speed Imaging System Successfully Applied in Medicine, Broad Spectrum of Industry  

Broader source: Energy.gov [DOE]

A groundbreaking Department of Energy-developed imaging system originally designed to help create cleaner fossil energy processes is finding successful applications in a wide range of medical, chemical processing, energy, and other industries.

173

Rule Based Energy Management and Reporting System (EMRS) Applied to a Large Utility Power Station Complex  

E-Print Network [OSTI]

Deregulation of electricity and rising fuel costs are causing renewed interest in Energy Management Systems (EMS) to service both the utility and private sectors. This paper details a case study of the successful integration of a new class of rule...

Bamber, D.; Childress, R.; Robinson, J.

2004-01-01T23:59:59.000Z

174

Rule-Based Energy Management System Applied to Large Industrial Facilities  

E-Print Network [OSTI]

Deregulation of electricity and rising fuel costs are causing renewed interest in Energy Management Systems (EMS). This paper details the results of integrating a rule-based EMS controller at a Pulp and Paper Mill and additional findings from...

Gauthier, M.; Childress, R. L.

175

Defending against the Unknown Enemy: Applying FlipIt to System Security  

E-Print Network [OSTI]

Most cryptographic systems carry the basic assumption that entities are able to preserve the secrecy of their keys. With attacks today showing ever increasing sophistication, however, this tenet is eroding. “Advanced ...

Bowers, Kevin D.

2012-01-01T23:59:59.000Z

176

Systems analysis and futuristic designs of advanced biofuel factory concepts.  

SciTech Connect (OSTI)

The U.S. is addicted to petroleum--a dependency that periodically shocks the economy, compromises national security, and adversely affects the environment. If liquid fuels remain the main energy source for U.S. transportation for the foreseeable future, the system solution is the production of new liquid fuels that can directly displace diesel and gasoline. This study focuses on advanced concepts for biofuel factory production, describing three design concepts: biopetroleum, biodiesel, and higher alcohols. A general schematic is illustrated for each concept with technical description and analysis for each factory design. Looking beyond current biofuel pursuits by industry, this study explores unconventional feedstocks (e.g., extremophiles), out-of-favor reaction processes (e.g., radiation-induced catalytic cracking), and production of new fuel sources traditionally deemed undesirable (e.g., fusel oils). These concepts lay the foundation and path for future basic science and applied engineering to displace petroleum as a transportation energy source for good.

Chianelli, Russ; Leathers, James; Thoma, Steven George; Celina, Mathias Christopher; Gupta, Vipin P.

2007-10-01T23:59:59.000Z

177

The method of general dimensional analysis applied to the determination of the parameters of the process of nitriding  

SciTech Connect (OSTI)

In the field of process characteristics for thermochemical treatments there is a contradiction between the great number of the parameters, that the experiment pointed out as determinants of the acquired results, and the small number of such kind of parameters that the Fick`s analytical laws can correlate. It can be ascertained that, a great deal of the complexity of diffusion processes is focused on the diffusion constant, as in the case of convection, where the coefficient of convection reflects the complexity of the process. The general dimensional analysis, created by the Romanian School of Experimental Physics as a development on a superior level of Rayleigh and Buckingham`s methods, can gather without exception, in analytical relations, all the parameters of the process of diffusion. The authors apply the method in the case of nitriding in nitrogen atmosphere with addition of ammonia.

Samoila, C.; Bot, D. [Transilvania-Univ. of Brasov (Romania)

1995-12-31T23:59:59.000Z

178

Input-output Analysis of Quantum Finite-level Systems in Response to Single Photon States  

E-Print Network [OSTI]

Single photon states, which carry quantum information and coherently interact with quantum systems, are vital to the realization of all-optical quantum networks and quantum memory. In this paper we derive the conditions that enable an exact analysis of the response of passive quantum finite-level systems under the weak driving of single photon input. We show that when a class of finite level systems is driven by single photon inputs, expressions for the output states may be derived exactly using linear systems transfer functions. This removes the need for physical approximations such as weak excitation limit in the analysis of quantum nonlinear systems under single photon driving. We apply this theory to the analysis of a single photon switch. The input-output relations are consistent with the existing results in the study of few photon transport through finite-level systems.

Yu Pan; Guofeng Zhang; Matthew R. James

2015-01-01T23:59:59.000Z

179

SM@RT: Applying Architecture-based Runtime Management into Internetware Systems  

E-Print Network [OSTI]

Engineering and Computer Science, Peking University, Beijing, 100871, China huanggang@sei.pku.edu.cn, songhui the RAI implementation code without any modification on the source code of the target system on Eclipse GUI and Android, C2 arc- hitectural models on JOnAS, Rainbow C/S style on PLASTIC and UML models

Boyer, Edmond

180

Applying Human Factors Evaluation and Design Guidance to a Nuclear Power Plant Digital Control System  

SciTech Connect (OSTI)

The United States (U.S.) nuclear industry, like similar process control industries, has moved toward upgrading its control rooms. The upgraded control rooms typically feature digital control system (DCS) displays embedded in the panels. These displays gather information from the system and represent that information on a single display surface. In this manner, the DCS combines many previously separate analog indicators and controls into a single digital display, whereby the operators can toggle between multiple windows to monitor and control different aspects of the plant. The design of the DCS depends on the function of the system it monitors, but revolves around presenting the information most germane to an operator at any point in time. DCSs require a carefully designed human system interface. This report centers on redesigning existing DCS displays for an example chemical volume control system (CVCS) at a U.S. nuclear power plant. The crucial nature of the CVCS, which controls coolant levels and boration in the primary system, requires a thorough human factors evaluation of its supporting DCS. The initial digital controls being developed for the DCSs tend to directly mimic the former analog controls. There are, however, unique operator interactions with a digital vs. analog interface, and the differences have not always been carefully factored in the translation of an analog interface to a replacement DCS. To ensure safety, efficiency, and usability of the emerging DCSs, a human factors usability evaluation was conducted on a CVCS DCS currently being used and refined at an existing U.S. nuclear power plant. Subject matter experts from process control engineering, software development, and human factors evaluated the DCS displays to document potential usability issues and propose design recommendations. The evaluation yielded 167 potential usability issues with the DCS. These issues should not be considered operator performance problems but rather opportunities identified by experts to improve upon the design of the DCS. A set of nine design recommendations was developed to address these potential issues. The design principles addressed the following areas: (1) color, (2) pop-up window structure, (3) navigation, (4) alarms, (5) process control diagram, (6) gestalt grouping, (7) typography, (8) terminology, and (9) data entry. Visuals illustrating the improved DCS displays accompany the design recommendations. These nine design principles serve as the starting point to a planned general DCS style guide that can be used across the U.S. nuclear industry to aid in the future design of effective DCS interfaces.

Thomas Ulrich; Ronald Boring; William Phoenix; Emily Dehority; Tim Whiting; Jonathan Morrell; Rhett Backstrom

2012-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Cost analysis of energy storage systems for electric utility applications  

SciTech Connect (OSTI)

Under the sponsorship of the Department of Energy, Office of Utility Technologies, the Energy Storage System Analysis and Development Department at Sandia National Laboratories (SNL) conducted a cost analysis of energy storage systems for electric utility applications. The scope of the study included the analysis of costs for existing and planned battery, SMES, and flywheel energy storage systems. The analysis also identified the potential for cost reduction of key components.

Akhil, A. [Sandia National Lab., Albuquerque, NM (United States); Swaminathan, S.; Sen, R.K. [R.K. Sen & Associates, Inc., Bethesda, MD (United States)

1997-02-01T23:59:59.000Z

182

Extremum seeking control techniques applied to photovoltaic systems with multimodal power curves  

E-Print Network [OSTI]

) Current(A) 0 200 320025 I-V curve P-V curve VMPP Power(W) 1000 Fig. 1. Photovoltaic cell I-V and P nonlinear steady-state characteristics, expressed as either current versus voltage (the so called I-V curve), or as power versus voltage (the P-V curve, like the one in Fig. 1). The I-V and P-V curves of a PV system vary

Boyer, Edmond

183

Extending and automating a systems-theoretic hazard analysis for requirements generation and analysis  

E-Print Network [OSTI]

Systems Theoretic Process Analysis (STPA) is a powerful new hazard analysis method designed to go beyond traditional safety techniques-such as Fault Tree Analysis (FTA)-that overlook important causes of accidents like ...

Thomas, John P., IV

2013-01-01T23:59:59.000Z

184

EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis Number systems of different lengths,  

E-Print Network [OSTI]

EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis Number systems of Mathematics University of Bristol April 21, 2008 Richard.Pettigrew@bris.ac.uk Natural number systems and infinitesimal analysis #12;EA Systems Examples Induction and Recursion Length Measuring the Universe Analysis

Forster, T.E.

185

Statistical mechanical theory for the structure of steady state systems: Application to a Lennard-Jones fluid with applied temperature gradient  

E-Print Network [OSTI]

Statistical mechanical theory for the structure of steady state systems: Application to a Lennard-Jones fluid with applied temperature gradient Phil Attard School of Chemistry F11, University of Sydney, New statistical mechanics for inhomogeneous systems may now be applied to determining the structure

Attard, Phil

186

Reliability importance analysis of Markovian systems at steady state using perturbation analysis  

E-Print Network [OSTI]

Reliability importance analysis of Markovian systems at steady state using perturbation analysis for static systems, i.e. systems described by combinatorial reliability models (fault or event trees for steady state sensitivity analysis of Markov processes in reliability studies. Keywords: perturbation

Paris-Sud XI, Université de

187

Applying System Execution Modeling Tools to Evaluate Enterprise Distributed Real-time and Embedded System QoS  

E-Print Network [OSTI]

System QoS John M. Slaby Raytheon Portsmouth, RI, USA john_m_slaby@raytheon.com Steve Baker Raytheon Portsmouth, RI, USA steven_d_baker@raytheon.com James Hill Vanderbilt University Nashville, TN, USA j

Schmidt, Douglas C.

188

Noise study of the digital seismic system amplifiers applied to earth noise measurements  

SciTech Connect (OSTI)

Some major noise problems afflicting the Digital Seismic System are briefly examined for the purpose of improving the signal-to-noise ratio for earth noise measurements. After concluding that the Tustin Electronics Co. 1560 instrumentation amplifiers presently being used in the system obscure the earth noise data, a comprehensive study (part experimental and part theoretical) of amplifier noise is performed. Noise curves in the approximate frequency range of 0.01 to 50 Hz for the Tustin amplifiers as well as for a new design based on the PMI SSS725 operational amplifier are experimentally determined. The curves, which include noise current and noise voltage densities as well as total noise, are compared to each other, and to the Peterson low earth noise curve. The comparisons are done with amplifier inputs shorted, connected to one and then two 500-..cap omega.. seismometer data coils, and connected to one 20-k..cap omega.. seismometer data coil. The total noise curve of the new amplifier is found to shift further below that of the Tustin amplifier as data coil resistance is increased. A goal of lowering amplifier noise 10 dB or more below the Peterson earth noise power density curve for frequencies greater than .03 Hz is desired. The new amplifier design, used in conjunction with a 20-k..cap omega.. data coil, is found to satisfy this 10 dB or more signal-to-noise ratio for earth noise measurements. It is also found that the difference between earth noise and new amplifier noise magnitudes is increased as data coil resistance is increased.

Valk, D.

1982-08-31T23:59:59.000Z

189

Systems Analysis Department Annual Report 2001  

E-Print Network [OSTI]

benchmarking analysis to the Danish district heating sector Technology Scenarios 17 Sensor Technology Foresight

190

A Spatial Planning and Analysis System for Wildland Fire Management  

E-Print Network [OSTI]

STARFIRE 11/29/2011 A Spatial Planning and Analysis System for Wildland Fire Management Welcome is an advanced and powerful spatial fire management planning and analysis system which is designed to provide visual and analytic support for fire management planning, decisions and communication. The system

191

Traffic Analysis: From Stateful Firewall to Network Intrusion Detection System  

E-Print Network [OSTI]

1 Traffic Analysis: From Stateful Firewall to Network Intrusion Detection System Fanglu Guo Tzi normalization. Index Terms Packet (traffic) analysis, stateful firewall, network intrusion detection system intrusion detection system (NIDS). Stateful firewall analyzes packets up to their layer 4 headers while NIDS

Chiueh, Tzi-cker

192

Decomposition algorithms for multi-area power system analysis  

E-Print Network [OSTI]

. This dissertation investigates decomposition algorithms for multi-area power system transfer capability analysis and economic dispatch analysis. All of the proposed algorithms assume that areas do not share their network operating and economic information among...

Min, Liang

2007-09-17T23:59:59.000Z

193

Roughness analysis applied to niobium thin films grown on MgO(001) surfaces for superconducting radio frequency cavity applications  

SciTech Connect (OSTI)

This paper describes surface studies to address roughness issues inherent to thin film coatings deposited onto superconducting radio frequency (SRF) cavities. This is particularly relevant for multilayered thin film coatings that are being considered as a possible scheme to overcome technical issues and to surpass the fundamental limit of ?50??MV/m accelerating gradient achievable with bulk niobium. In 2006, a model by Gurevich [ Appl. Phys. Lett. 88 012511 (2006)] was proposed to overcome this limit that involves coating superconducting layers separated by insulating ones onto the inner walls of the cavities. Thus, we have undertaken a systematic effort to understand the dynamic evolution of the Nb surface under specific deposition thin film conditions onto an insulating surface in order to explore the feasibility of the proposed model. We examine and compare the morphology from two distinct Nb/MgO series, each with its own epitaxial registry, at very low growth rates and closely examine the dynamical scaling of the surface features during growth. Further, we apply analysis techniques such as power spectral density to the specific problem of thin film growth and roughness evolution to qualify the set of deposition conditions that lead to successful SRF coatings.

D. B. Beringer, W. M. Roach, C. Clavero, C. E. Reece, R. A. Lukaszew

2013-02-01T23:59:59.000Z

194

Notes 11. Modal Analysis of MDOF Systems with Viscous Damping  

E-Print Network [OSTI]

? (3) where in general ? is a complex number. Substitution of Eq. (3) into Eq. (2) leads to the following characteristic equation: () () 2 0 ? ?? ?? ++ = = ?? MCK? f ? (4) MEEN 617 HD 11 Modal Analysis of MDOF... MEEN 617 HD 11 Modal Analysis of MDOF Systems with Viscous Damping L. San Andr?s ? 2008 1 MEEN 617 Handout #11 MODAL ANALYSIS OF MDOF Systems with VISCOUS DAMPING ^ Symmetric Motion of a n-DOF linear system...

San Andres, Luis

2008-01-01T23:59:59.000Z

195

Hydrogen Storage Systems Analysis Working Group Meeting: Summary...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Summary of June 11, 2008, biannual meeting of the Hydrogen Storage Systems Analysis Working Group. ssawgsummaryreport0608.pdf More Documents & Publications Hydrgoen Storage...

196

Hydrogen Storage Systems Analysis Working Group Meeting: Summary...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

meetings is to bring together the DOE research community involved in systems analysis of hydrogen storage materials and processes. ssawgsummaryreport.pdf More Documents &...

197

Supplement Analysis for the Transmission System Vegetation Management...  

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

14, 2001 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOEEIS-0285SA-35) James Jellison - TFOOlympia...

198

Supplement Analysis for the Transmission System Vegetation Management...  

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

5, 2001 REPLY TO ATTN OF: KEPZ992 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOEEIS-0285SA-25) Elizabeth Johnson - TFRThe...

199

Space Dust Analysis Could Provide Clues to Solar System Origins  

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

of oxygen. Isotope analysis could help confirm that the dust originated outside the solar system, but it's a process that would destroy the precious samples. For now,...

200

analysis system tool: Topics by E-print Network  

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

to analyse LCA variability of energy systems Physics Websites Summary: variability in LCA are sensitivity analysis (SA). However, when dealing with environmental impact...

Note: This page contains sample records for the topic "applied systems 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

Office of Energy Policy and Systems Analysis Site Upgrade  

Broader source: Energy.gov [DOE]

Office of Energy Policy and Systems Analysis site is currently being upgraded to better serve on audience. Please check back shortly.

202

Webinar: Automotive and MHE Fuel Cell System Cost Analysis  

Broader source: Energy.gov [DOE]

Video recording and text version of the webinar titled, Automotive and MHE Fuel Cell System Cost Analysis, originally presented on April 16, 2013.

203

STABILITY ANALYSIS OF INTERCONNECTED POWER SYSTEMS COUPLED WITH MARKET DYNAMICS  

E-Print Network [OSTI]

STABILITY ANALYSIS OF INTERCONNECTED POWER SYSTEMS COUPLED WITH MARKET DYNAMICS F.L. Alvarado1 J of generators and network interconnections. This paper examines questions of stability in such coupled systems

204

Technology Portfolio Planning by Weighted Graph Analysis of System Architectures  

E-Print Network [OSTI]

Technology Portfolio Planning by Weighted Graph Analysis of System Architectures Peter Davison and Bruce Cameron Massachusetts Institute of Technology, Cambridge, MA 02139 Edward F. Crawley Skolkovo Institute of Science and Technology, Skolkovo 143025, Russia Abstract5 Many systems undergo significant

de Weck, Olivier L.

205

analysis system retas: Topics by E-print Network  

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

para toda sequencia (xn)nN em D(f)x0, com lim n Oquendo, Higidio Portillo 3 Systems Analysis Systems Integration Renewable Energy Websites Summary: Domestic energy-based...

206

Availability Analysis of the Ventilation Stack CAM Interlock System  

E-Print Network [OSTI]

Ventilation Stack Continuous Air Monitor (CAM) Interlock System failure modes, failure frequencies, and system availability have been evaluated for the RPP. The evaluation concludes that CAM availability is as high as assumed in the safety analysis and that the current routine system surveillance is adequate to maintain this availability credited in the safety analysis, nor is such an arrangement predicted to significantly improve system availability.

Young, J

2000-01-01T23:59:59.000Z

207

Possibilities and limitations of life cycle assessment (LCA) in the development of waste utilization systems - Applied examples for a region in Northern Germany  

SciTech Connect (OSTI)

Against the background of increasing concerns about climate change, the reduction of greenhouse gas emissions has become an integral part of processes in both the waste management and the energy industries. This is reflected in the development of new waste treatment concepts, in which domestic and commercial waste is treated with the aim of utilizing its energy content, while at the same time recycling as much of its material content as possible. Life cycle assessment (LCA) represents a method of assessing the environmental relevance of a waste management system, the basis of which is a material flow analysis of the system in question. GHG emissions from different options for thermal treatment and energy recovery from waste as applied to a region in Northern Germany have been analyzed by the LCA approach and an indicative LCA, which only considers those emissions resulting from operating stages of the system. Operating stages have the main share of emissions compared to pre-processing stages. Results show that through specific separation of waste material flows and highly efficient energy recovery, thermal treatment and energy generation from waste can be optimized resulting in reduction of emissions of greenhouse gases. There are also other areas of waste utilization, currently given little attention, such as the solar drying of sewage sludge, which can considerably contribute to the reduction of greenhouse gas emissions.

Wittmaier, M. [Institute for Recycling and Environmental Protection at Bremen University of Applied Sciences GmbH, Neustadtswall 30, 28199 Bremen (Germany)], E-mail: wittmaier@hs-bremen.de; Langer, S.; Sawilla, B. [Institute for Recycling and Environmental Protection at Bremen University of Applied Sciences GmbH, Neustadtswall 30, 28199 Bremen (Germany)

2009-05-15T23:59:59.000Z

208

Sensitivity Analysis of Wind Plant Performance to Key Turbine Design Parameters: A Systems Engineering Approach; Preprint  

SciTech Connect (OSTI)

This paper introduces the development of a new software framework for research, design, and development of wind energy systems which is meant to 1) represent a full wind plant including all physical and nonphysical assets and associated costs up to the point of grid interconnection, 2) allow use of interchangeable models of varying fidelity for different aspects of the system, and 3) support system level multidisciplinary analyses and optimizations. This paper describes the design of the overall software capability and applies it to a global sensitivity analysis of wind turbine and plant performance and cost. The analysis was performed using three different model configurations involving different levels of fidelity, which illustrate how increasing fidelity can preserve important system interactions that build up to overall system performance and cost. Analyses were performed for a reference wind plant based on the National Renewable Energy Laboratory's 5-MW reference turbine at a mid-Atlantic offshore location within the United States.

Dykes, K.; Ning, A.; King, R.; Graf, P.; Scott, G.; Veers, P.

2014-02-01T23:59:59.000Z

209

Safety Analysis Of Automated Highway Systems  

E-Print Network [OSTI]

Lee. Towards an automated fmea assis- tant. In Applicationsmodes and effects analysis (FMEA) is employed to determineof multiple failures. ) FMEA was developed Potential Part

Leveson, Nancy G.

1997-01-01T23:59:59.000Z

210

FAQS Gap Analysis Qualification Card – Mechanical Systems  

Broader source: Energy.gov [DOE]

Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard.

211

Towards Interactive Timing Analysis for Designing Reactive Systems  

E-Print Network [OSTI]

Towards Interactive Timing Analysis for Designing Reactive Systems Insa Fuhrmann David Broman Steven Smyth Reinhard von Hanxleden Electrical Engineering and Computer Sciences University of California Interactive Timing Analysis for Designing Reactive Systems Insa Fuhrmann1 , David Broman2,3 , Steven Smyth1

212

Advanced Process and Chemical Complex Analysis Systems Derya Ozyurtb  

E-Print Network [OSTI]

157g Advanced Process and Chemical Complex Analysis Systems Derya Ozyurtb , Aimin Xub , Thomas for statements or opinions contained in papers or printed in its publications. #12;Abstract: The Advanced Process Analysis System is used to perform economic and environmental evaluations of a plant. The main components

Pike, Ralph W.

213

A theoretical systemic analysis of organizational tacit knowledge memorization  

E-Print Network [OSTI]

. Thus, individual learning will lead to organizational learning, which later will differentiate1 A theoretical systemic analysis of organizational tacit knowledge memorization Iskander ZOUAGHI halshs-00665703,version1-2Feb2012 #12;2 A theoretical systemic analysis of organizational tacit knowledge

Paris-Sud XI, Université de

214

15-11-061ETSAP Energy Technology Systems Analysis  

E-Print Network [OSTI]

15-11-061ETSAP Energy Technology Systems Analysis Programme (ETSAP) ­ Annex X ETSAP Semi · Global Energy Supply: Model-based Scenario Analysis of Resource Use and Energy Trade. Uwe Remme, Maryse Policy Scenario to address energy security and environmental concerns. Based on the detailed analysis

215

Analysis of inhomogeneous optical systems by the use of ray tracing. I. Planar systems  

E-Print Network [OSTI]

, such as optical fiber profiling,1­5 diagnostics of planar waveguides,6,7 plasma diagnostics, and analysis of nondestructive diagnostics of asymmetric objects, which is based on observation of the traces of thin coplanar methods described below. Ray-tracing analysis has been applied to nonde- structive diagnostics of planar

Chan, Derek Y C

216

An analysis of distributed solar fuel systems  

E-Print Network [OSTI]

While solar fuel systems offer tremendous potential to address global clean energy needs, most existing analyses have focused on the feasibility of large centralized systems and applications. Not much research exists on ...

Thomas, Alex, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

217

Systems integration and analysis of advanced life support technologies  

E-Print Network [OSTI]

................................................................................... 17 3.1. Methodical Analysis of ALS Technologies.............................................. 17 3.2. Computer-Aided Analysis ........................................................................ 18 4 METHODS OF ANALYSIS... requirement of the system [kWth] Ceq Mass equivalency factor for the cooling infrastructure [kg/kWth] CT Total crewtime requirement of the system [CM-h/y] D Duration of the mission segment of interest [y] CTeq Mass equivalency factor for the crewtime...

Nworie, Grace A.

2009-06-02T23:59:59.000Z

218

Integrated Vehicle Thermal Management Systems (VTMS) Analysis...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Integrated Vehicle Thermal Management Power Electronic Thermal System Performance and Integration Characterization and Development of Advanced Heat Transfer Technologies...

219

The Analysis of Barcelo,Finazzi and Liberati applied to both Alcubierre and Natario Warp Drive Spacetimes: Horizons,Infinite Doppler  

E-Print Network [OSTI]

The Analysis of Barcelo,Finazzi and Liberati applied to both Alcubierre and Natario Warp Drive Loup Residencia de Estudantes Universitas Lisboa Portugal November 3, 2013 Abstract Warp Drives Relativity. There are at the present moment two known solutions: The Alcubierre warp drive discovered in 1994

Paris-Sud XI, Université de

220

The Analysis of Harold White applied to the Natario Warp Drive Spacetime. From 10 times the mass of the Universe to the mass of the  

E-Print Network [OSTI]

The Analysis of Harold White applied to the Natario Warp Drive Spacetime. From 10 times the mass Portugal September 30, 2012 Abstract Warp Drives are solutions of the Einstein Field Equations that allows solutions: The Alcubierre warp drive discovered in 1994 and the Natario warp drive discovered in 2001

Boyer, Edmond

Note: This page contains sample records for the topic "applied systems 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

How Much Degrees Of Temperature A Warp Drive Achieves When At Superluminal Speeds?? The Analysis Of Gonzalez-Diaz Applied To The  

E-Print Network [OSTI]

How Much Degrees Of Temperature A Warp Drive Achieves When At Superluminal Speeds?? The Analysis Of Gonzalez-Diaz Applied To The Natario Warp Drive Spacetime. Fernando Loup Residencia de Estudantes Universitas Lisboa Portugal February 24, 2013 Abstract Warp Drives are solutions of the Einstein Field

Boyer, Edmond

222

The Analysis of Harold White applied to the Natario Warp Drive Spacetime. From 10 times the mass of the Universe to arbitrary low  

E-Print Network [OSTI]

The Analysis of Harold White applied to the Natario Warp Drive Spacetime. From 10 times the mass with power factors.Warp Drives with two warped regions Fernando Loup Residencia de Estudantes Universitas Lisboa Portugal July 15, 2013 Abstract Warp Drives are solutions of the Einstein Field Equations

Paris-Sud XI, Université de

223

STAT565: APPLIED TIME SERIES ANALYSIS 16:960:565 SPRING 2014, MONDAY 6:40-9:30 PM, ARC 107 BUS  

E-Print Network [OSTI]

STAT565: APPLIED TIME SERIES ANALYSIS 16:960:565 SPRING 2014, MONDAY 6:40-9:30 PM, ARC 107 BUS 1 or by appointment · Email: hxiao@stat.rutgers.edu · Prerequisite. First graduate level courses in mathematical, by Ruey S. Tsay. Wiley, 2010, 3rd. Full text available from MyiLibrary http://lib.myilibrary.com/Open.aspx?id

Shepp, Larry

224

Development of a natural gas systems analysis model (GSAM)  

SciTech Connect (OSTI)

This report provides an overview of the activities to date and schedule for future testing, validation, and authorized enhancements of Natural Gas Systems Analysis Model (GSAM). The goal of this report is to inform DOE managers of progress in model development and to provide a benchmark for ongoing and future research. Section II of the report provides a detailed discussion on the major GSAM development programs performed and completed during the period of performance, July 1, 1998 to September 30, 1999. Key improvements in the new GSAM version are summarized in Section III. Programmer's guides for GSAM main modules were produced to provide detailed descriptions of all major subroutines and main variables of the computer code. General logical flowcharts of the subroutines are also presented in the guides to provide overall picture of interactions between the subroutines. A standard structure of routine explanation is applied in every programmer's guide. The explanation is started with a brief description or main purpose of the routine, lists of input and output files read and created, and lists of invoked/child and calling/parent routines. In some of the guides, interactions between the routine itself and its parent and child routines are presented in the form of graphical flowchart. The explanation is then proceeded with step by step description of computer code in the subroutine where each step delegates a section of related code. Between steps, if a certain section of code needs further explanation, a Note is inserted with relevant explanation.

NONE

1999-10-01T23:59:59.000Z

225

Microcomputer Analysis of Pumping System Performance  

E-Print Network [OSTI]

With today’s emphasis on efficient use and conservation of energy, selecting the correct pump for a given application requires not only a concise performance evaluation but also detailed economic analysis. A microcomputer program entitled PUMPCALC...

Bierschenk, J. L.; Schmidt, P. S.

226

Failure analysis issues in microelectromechanical systems (MEMS).  

SciTech Connect (OSTI)

Failure analysis and device characterization of MEMS components are critical steps in understanding the root causes of failure and improving device performance. At the wafer and die level these tasks can be performed with little or no sample preparation. Larger challenges occur after fabrication when the device is packaged, capped, sealed, or otherwise obstructed from view. The challenges and issues of MEMS failure analysis lie in identifying the root cause of failure for these packaged, capped, and sealed devices without perturbing the device or its immediate environment. Novel methods of gaining access to the device or preparing the device for analysis are crucial to accurately determining the root cause of failure. This paper will discuss issues identified in performing root cause failure analysis of packaged MEMS devices, as well as the methods employed to analyze them.

Walraven, Jeremy Allen

2005-07-01T23:59:59.000Z

227

A systems approach to food accident analysis  

E-Print Network [OSTI]

Food borne illnesses lead to 3000 deaths per year in the United States. Some industries, such as aviation, have made great strides increasing safety through careful accident analysis leading to changes in industry practices. ...

Helferich, John D

2011-01-01T23:59:59.000Z

228

Process of system design and analysis  

SciTech Connect (OSTI)

The design of an effective physical protection system includes the determination of the physical protection system objectives, the initial design of a physical protection system, the evaluation of the design, and, probably, a redesign or refinement of the system. To develop the objectives, the designer must begin by gathering information about facility operations and conditions, such as a comprehensive description of the facility, operating states, and the physical protection requirements. The designer then needs to define the threat. This involves considering factors about potential adversaries: Class of adversary, adversary`s capabilities, and range of adversary`s tactics. Next, the designer should identify targets. Determination of whether or not nuclear materials are attractive targets is based mainly on the ease or difficulty of acquisition and desirability of the materiaL The designer now knows the objectives of the physical protection system, that is, ``What to protect against whom.`` The next step is to design the system by determining how best to combine such elements as fences, vaults, sensors, procedures, communication devices, and protective force personnel to meet the objectives of the system. Once a physical protection system is designed, it must be analyzed and evaluated to ensure it meets the physical protection objectives. Evaluation must allow for features working together to assure protection rather than regarding each feature separately. Due to the complexity of protection systems, an evaluation usually requires modeling techniques. If any vulnerabilities are found, the initial system must be redesigned to correct the vulnerabilities and a reevaluation conducted.

Gardner, B.

1995-09-01T23:59:59.000Z

229

Electron Spectrometer: Scanning Multiprobe Surface Analysis System...  

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

based systems can be used as electrolytes to develop solid oxide fuel cells for clean energy production and to prevent air... Characterization of Amorphous Zinc Tin Oxide...

230

ANALYSIS OF THE MOTION OF AN EXTRASOLAR PLANET IN A BINARY SYSTEM  

SciTech Connect (OSTI)

More than 10% of extra-solar planets (EPs) orbit in a binary or multiple stellar system. We investigated the motion of planets revolving in binary systems in the case of the three-body problem. We carried out an analysis of the motion of an EP revolving in a binary system with the following conditions: (1) a planet in a binary system revolves around one of the components (parent star); (2) the distance between the star's components is greater than that between the parent star and the orbiting planet (ratio of the semi-major axes is a small parameter); and (3) the mass of the planet is smaller than the mass of the stars, but is not negligible. The Hamiltonian of the system without short periodic terms was used. We expanded the Hamiltonian in terms of the Legendre polynomial and truncated after the second-order term, depending on only one angular variable. In this case, the solution of the system was obtained and the qualitative analysis of the motion was produced. We have applied this theory to real EPs and compared to the numerical integration. Analyses of the possible regions of motion are presented. It is shown that stable and unstable motions of EPs are possible. We applied our calculations to two binary systems hosting an EP and calculated the possible values for their unknown orbital elements.

Plávalová, Eva [Astronomical Institute, Slovak Academy of Science, Bratislava (Slovakia); Solovaya, Nina A., E-mail: plavala@slovanet.sk, E-mail: solov@sai.msu.ru [Sternberg State Astronomical Institute, Lomonosov Moscow State University, Moscow (Russian Federation)

2013-11-01T23:59:59.000Z

231

Geological interpretation of Mount Ciremai geothermal system from remote sensing and magneto-teluric analysis  

E-Print Network [OSTI]

The exploration of geothermal system at Mount Ciremai has been started since the early 1980s and has just been studied carefully since the early 2000s. Previous studies have detected the potential of geothermal system and also the groundwater mechanism feeding the system. This paper will discuss the geothermal exploration based on regional scale surface temperature analysis with Landsat image to have a more detail interpretation of the geological setting and magneto-telluric or MT survey at prospect zones, which identified by the previous method, to have a more exact and in depth local scale structural interpretation. Both methods are directed to pin point appropriate locations for geothermal pilot hole drilling and testing. We used four scenes of Landsat Enhanced Thematic Mapper or ETM+ data to estimate the surface manifestation of a geothermal system. Temporal analysis of Land Surface Temperature or LST was applied and coupled with field temperature measurement at seven locations. By combining the TTM with ...

Sumintadireja, Prihadi; Irawan, Dasapta E; Irawan, Diky; Fadillah, Ahmad

2015-01-01T23:59:59.000Z

232

Fuel Cell System Improvement for Model-Based Diagnosis Analysis  

E-Print Network [OSTI]

Fuel Cell System Improvement for Model-Based Diagnosis Analysis Philippe Fiani & Michel Batteux of a model of a fuel cell system, in order to make it usable for model- based diagnosis methods. A fuel cell for the fuel cell stack but also for the system environment. In this paper, we present an adapted library which

Paris-Sud XI, Université de

233

Cost Analysis of Fuel Cell Systems for Transportation  

E-Print Network [OSTI]

Cost Analysis of Fuel Cell Systems for Transportation Compressed Hydrogen and PEM Fuel Cell System Discussion Fuel Cell Tech Team FreedomCar Detroit. MI October 20, 2004 TIAX LLC Acorn Park Cambridge Presentation 3 A fuel cell vehicle would contain the PEMFC system modeled in this project along with additional

234

Nonlinear analysis of a reaction-diffusion system: Amplitude equations  

SciTech Connect (OSTI)

A reaction-diffusion system with a nonlinear diffusion term is considered. Based on nonlinear analysis, the amplitude equations are obtained in the cases of the Hopf and Turing instabilities in the system. Turing pattern-forming regions in the parameter space are determined for supercritical and subcritical instabilities in a two-component reaction-diffusion system.

Zemskov, E. P., E-mail: zemskov@ccas.ru [Russian Academy of Sciences, Dorodnicyn Computing Center (Russian Federation)

2012-10-15T23:59:59.000Z

235

Modal Analysis of Continuous Structrual System with Tapered Cantilevered Members  

E-Print Network [OSTI]

OF CONVENTIONAL CONTINUOUS SYSTEM ............ 9 2.1. Transverse Vibration in Conventional Continuous System Model .................... 9 2.2. Equation of Motion for Flexural Member .......................................................... 9 2.3 Boundary.......................................... 19 2.6 Conclusion ........................................................................................................ 20 3. MODAL ANALYSIS OF DISCRETIZED CONTINUOUS SYSTEM ............... 21 3.1. Transverse Vibration in Discretized Continuous...

Kim, Yoon Mo

2012-02-14T23:59:59.000Z

236

Fuel Cell Power Systems Analysis Patrick DavisPatrick Davis  

E-Print Network [OSTI]

Power Systems · Balance-of-plant (compressors, humidifiers, heat exchangers, sensors, controls) · Cost hydrogen 500020001000HoursDurability 45125325$/kWCost 325250140W/LPower density Operating on Tier 2 · Fuel Cell Vehicle Systems Analysis · Cost Analyses of Fuel Cell Stacks/ Systems · DFMA Cost Estimates

237

Route profile analysis system and method  

DOE Patents [OSTI]

A system for recording terrain profile information is disclosed. The system accurately senses incremental distances traveled by a vehicle along with vehicle inclination, recording both with elapsed time. The incremental distances can subsequently be differentiated with respect to time to obtain acceleration. The computer acceleration can then be used to correct the sensed inclination.

Mullenhoff, D.J.; Wilson, S.W.

1982-07-29T23:59:59.000Z

238

Bifurcation Analysis of Various Power System Models  

E-Print Network [OSTI]

generator and transmission system. Di erent modeling levels with their respective di erential-algebraic equa, the generation or system loading levels are used as bifurcation parameters, which are varied slowly, moving erent induction motor load models are considered. The loads were modeled as constant, linear

Cañizares, Claudio A.

239

An Experimental Metagenome Data Management and AnalysisSystem  

SciTech Connect (OSTI)

The application of shotgun sequencing to environmental samples has revealed a new universe of microbial community genomes (metagenomes) involving previously uncultured organisms. Metagenome analysis, which is expected to provide a comprehensive picture of the gene functions and metabolic capacity of microbial community, needs to be conducted in the context of a comprehensive data management and analysis system. We present in this paper IMG/M, an experimental metagenome data management and analysis system that is based on the Integrated Microbial Genomes (IMG) system. IMG/M provides tools and viewers for analyzing both metagenomes and isolate genomes individually or in a comparative context.

Markowitz, Victor M.; Korzeniewski, Frank; Palaniappan, Krishna; Szeto, Ernest; Ivanova, Natalia N.; Kyrpides, Nikos C.; Hugenholtz, Philip

2006-03-01T23:59:59.000Z

240

Hierarchical Task Analysis of Intrusion Detection Systems  

E-Print Network [OSTI]

.......................... 4 3. Hierarchical Task Analysis ............................ 6 3.1 Network Security Administrator .................... 7 3.2 Functions of Network Security Administrator ....... 7 4. Diagrams on a single or group of persons called Network Security Administrators. They use a wide variety of tools

Blustein, J.

Note: This page contains sample records for the topic "applied systems 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

Extending and automating a Systems-Theoretic hazard analysis for requirements generation and analysis.  

SciTech Connect (OSTI)

Systems Theoretic Process Analysis (STPA) is a powerful new hazard analysis method designed to go beyond traditional safety techniques - such as Fault Tree Analysis (FTA) - that overlook important causes of accidents like flawed requirements, dysfunctional component interactions, and software errors. While proving to be very effective on real systems, no formal structure has been defined for STPA and its application has been ad-hoc with no rigorous procedures or model-based design tools. This report defines a formal mathematical structure underlying STPA and describes a procedure for systematically performing an STPA analysis based on that structure. A method for using the results of the hazard analysis to generate formal safety-critical, model-based system and software requirements is also presented. Techniques to automate both the analysis and the requirements generation are introduced, as well as a method to detect conflicts between the safety and other functional model-based requirements during early development of the system.

Thomas, John (Massachusetts Institute of Technology)

2012-05-01T23:59:59.000Z

242

Commonality analysis for exploration life support systems  

E-Print Network [OSTI]

Commonality, defined practically as the use of similar technologies to deliver similar functions across a range of different complex systems, offers opportunities to improve the lifecycle costs of portfolios of complex ...

Cunio, Phillip M

2008-01-01T23:59:59.000Z

243

Design and analysis of reconfigurable analog system  

E-Print Network [OSTI]

A highly-configurable analog system is presented. A prototype chip is fabricated and an ADC and filter functionalities are demonstrated. The chip consists of eight identical programmable stages. In an ADC configuration, ...

Lajevardi, Payam

2011-01-01T23:59:59.000Z

244

Analysis of Bitcoin Pooled Mining Reward Systems  

E-Print Network [OSTI]

In this paper we describe the various scoring systems used to calculate rewards of participants in Bitcoin pooled mining, explain the problems each were designed to solve and analyze their respective advantages and disadvantages.

Rosenfeld, Meni

2011-01-01T23:59:59.000Z

245

Vulnerability Analysis of Energy Delivery Control Systems  

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

coding practices can be found in new and old products alike, and the introduction of Web applications into SCADA systems has created more, as well as new, types of...

246

Uncertainty analysis of power systems using collocation  

E-Print Network [OSTI]

The next-generation all-electric ship represents a class of design and control problems in which the system is too large to approach analytically, and even with many conventional computational techniques. Additionally, ...

Taylor, Joshua Adam

2008-01-01T23:59:59.000Z

247

Electron Spectrometer: Scanning Multiprobe Surface Analysis System...  

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

the system will include an intense He lamp for ultraviolet photoelectron spectroscopy (UPS), an argon ion gun for sputter depth profiling, and a C60 ion gun for high-resolution...

248

POWER GRID DYNAMICS: ENHANCING POWER SYSTEM OPERATION THROUGH PRONY ANALYSIS  

SciTech Connect (OSTI)

Prony Analysis is a technique used to decompose a signal into a series consisting of weighted complex exponentials and promises to be an effi cient way of recognizing sensitive lines during faults in power systems such as the U.S. Power grid. Positive Sequence Load Flow (PSLF) was used to simulate the performance of a simple two-area-four-generator system and the reaction of the system during a line fault. The Dynamic System Identifi cation (DSI) Toolbox was used to perform Prony analysis and use modal information to identify key transmission lines for power fl ow adjustment to improve system damping. The success of the application of Prony analysis methods to the data obtained from PSLF is reported, and the key transmission line for adjustment is identifi ed. Future work will focus on larger systems and improving the current algorithms to deal with networks such as large portions of the Western Electricity Coordinating Council (WECC) power grid.

Ray, C.; Huang, Z.

2007-01-01T23:59:59.000Z

249

Analysis of Hybrid Hydrogen Systems: Final Report  

SciTech Connect (OSTI)

Report on biomass pathways for hydrogen production and how they can be hybridized to support renewable electricity generation. Two hybrid systems were studied in detail for process feasibility and economic performance. The best-performing system was estimated to produce hydrogen at costs ($1.67/kg) within Department of Energy targets ($2.10/kg) for central biomass-derived hydrogen production while also providing value-added energy services to the electric grid.

Dean, J.; Braun, R.; Munoz, D.; Penev, M.; Kinchin, C.

2010-01-01T23:59:59.000Z

250

Digital Pulse-Shape Discrimination Applied to an Ultra-Low-Background Gas-Proportional Counting System: First Results  

SciTech Connect (OSTI)

Abstract A new ultra-low-background proportional counter (ULBPC) design was recently developed at Pacific Northwest National Laboratory (PNNL). This design, along with an ultra-low-background counting system (ULBCS) which provides passive and active shielding with radon exclusion, has been developed to complement a new shallow underground laboratory (~30 meters water-equivalent) constructed at PNNL. After these steps to mitigate dominant backgrounds (cosmic rays, external gamma-rays, radioactivity in materials), remaining background events do not exclusively arise from ionization of the proportional counter gas. Digital pulse-shape discrimination (PSD) is thus employed to further improve measurement sensitivity. In this work, a template shape is generated for each individual sample measurement of interest, a "self-calibrating" template. Differences in event topology can also cause differences in pulse shape. In this work, the temporal region analyzed for each event is refined to maximize background discrimination while avoiding unwanted sensitivity to event topology. This digital PSD method is applied to sample and background data, and initial measurement results from a biofuel methane sample are presented in the context of low-background measurements currently being developed.

Aalseth, Craig E.; Day, Anthony R.; Fuller, Erin S.; Hoppe, Eric W.; Keillor, Martin E.; Mace, Emily K.; Myers, A. W.; Overman, Cory T.; Panisko, Mark E.; Seifert, Allen; Warren, Glen A.; Williams, Richard M.

2013-05-01T23:59:59.000Z

251

Enhancing the systems decision process with flexibility analysis for optimal unmanned aircraft system selection  

E-Print Network [OSTI]

Systems Engineers often conduct decision analysis in order to provide decision makers with a quantifiable means to make decisions. However, the field of Systems Engineering is often criticized for focusing on processes and ...

Bachmann, Chris H., III (Christopher Henry)

2008-01-01T23:59:59.000Z

252

WWER Expert System for Fuel Failure Analysis Using Data on Primary Coolant Activity  

SciTech Connect (OSTI)

The computer expert system for fuel failure analysis of WWER during operation is presented. The diagnostics is based on the measurement of specific activity of reference nuclides in reactor primary coolant and application of a computer code for the data interpretation. The data analysis includes an evaluation of tramp uranium mass in reactor core, detection of failures by iodine and caesium spikes, evaluation of burnup of defective fuel. Evaluation of defective fuel burnup was carried out by applying the relation of caesium nuclides activity in spikes and relations of activities of gaseous fission products for steady state operational conditions. The method of burnup evaluation of defective fuel by use of fission gas activity is presented in detail. The neural-network analysis is performed for determination of failed fuel rod number and defect size. Results of the expert system application are illustrated for several fuel campaigns on operating WWER NPPs. (authors)

Likhanskii, V.V.; Evdokimov, I.A.; Sorokin, A.A.; Khromov, A.G.; Kanukova, V.D.; Apollonova, O.V. [SRC RF TRINITI, 142190, Troitsk, Moscow Reg. (Russian Federation); Ugryumov, A.V. [JSC TVEL, 119017, 24/26 Bolshaya Ordynka st., Moscow (Russian Federation)

2007-07-01T23:59:59.000Z

253

AC system stability analysis and assessment for Shipboard Power Systems  

E-Print Network [OSTI]

due to reconfiguration might cause voltage instability, such as progressive voltage decreases or voltage oscillations. SPS stability thus should be assessed to ensure the stable operation of a system during reconfiguration. In this dissertation, time...

Qi, Li

2006-04-12T23:59:59.000Z

254

Analysis of Lyapunov Control for Hamiltonian Quantum Systems  

E-Print Network [OSTI]

We present detailed analysis of the convergence properties and effectiveness of Lyapunov control design for bilinear Hamiltonian quantum systems based on the application of LaSalle's invariance principle and stability analysis from dynamical systems and control theory. For a certain class of Hamiltonians, strong convergence results can be obtained for both pure and mixed state systems. The control Hamiltonians for realistic physical systems, however, generally do not fall in this class. It is shown that the effectiveness of Lyapunov control design in this case is significantly diminished.

Xiaoting Wang; Sonia Schirmer

2008-05-19T23:59:59.000Z

255

Multiscale Analysis and Optimisation of Photosynthetic Solar Energy Systems  

E-Print Network [OSTI]

This work asks how light harvesting in photosynthetic systems can be optimised for economically scalable, sustainable energy production. Hierarchy theory is introduced as a system-analysis and optimisation tool better able to handle multiscale, multiprocess complexities in photosynthetic energetics compared with standard linear-process analysis. Within this framework, new insights are given into relationships between composition, structure and energetics at the scale of the thylakoid membrane, and also into how components at different scales cooperate under functional objectives of the whole photosynthetic system. Combining these reductionistic and holistic analyses creates a platform for modelling multiscale-optimal, idealised photosynthetic systems in silico.

Andrew K. Ringsmuth

2014-02-24T23:59:59.000Z

256

Multiscale Analysis and Optimisation of Photosynthetic Solar Energy Systems  

E-Print Network [OSTI]

This work asks how light harvesting in photosynthetic systems can be optimised for economically scalable, sustainable energy production. Hierarchy theory is introduced as a system-analysis and optimisation tool better able to handle multiscale, multiprocess complexities in photosynthetic energetics compared with standard linear-process analysis. Within this framework, new insights are given into relationships between composition, structure and energetics at the scale of the thylakoid membrane, and also into how components at different scales cooperate under functional objectives of the whole photosynthetic system. Combining these reductionistic and holistic analyses creates a platform for modelling multiscale-optimal, idealised photosynthetic systems in silico.

Ringsmuth, Andrew K

2014-01-01T23:59:59.000Z

257

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems  

E-Print Network [OSTI]

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani1, Markus M¨uller-Olm Bouajjani, Markus M¨uller-Olm, and Tayssir Touili parallel calls. In a multithreaded program such a command

Müller-Olm, Markus

258

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems  

E-Print Network [OSTI]

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani 1 , Markus MË?uller­Olm #12; 474 Ahmed Bouajjani, Markus MË?uller­Olm, and Tayssir Touili parallel calls. In a multithreaded

Müller-Olm, Markus

259

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems  

E-Print Network [OSTI]

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani 1 , Markus MË?uller­Olm Bouajjani, Markus MË?uller­Olm, and Tayssir Touili parallel calls. In a multithreaded program such a command

Touili, Tayssir

260

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems  

E-Print Network [OSTI]

Regular Symbolic Analysis of Dynamic Networks of Pushdown Systems Ahmed Bouajjani1, Markus M¨uller-Olm #12;474 Ahmed Bouajjani, Markus M¨uller-Olm, and Tayssir Touili parallel calls. In a multithreaded

Müller-Olm, Markus

Note: This page contains sample records for the topic "applied systems 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

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

262

Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation)  

SciTech Connect (OSTI)

Presentation on Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation) for the 2005 Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Review held in Arlington, Virginia on May 23-26, 2005.

Pesaran, A.; Kim, G.; Markel, T.; Wipke, K.

2005-05-01T23:59:59.000Z

263

Modeling and Analysis of CSP Systems (Fact Sheet)  

SciTech Connect (OSTI)

Fact sheet describing NREL CSP Program capabilities in the area of modeling and analysis of CSP systems: assessing the solar resource, predicting performance and cost, studying environmental impact, and developing modeling software packages.

Not Available

2010-08-01T23:59:59.000Z

264

analysis system design: Topics by E-print Network  

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

the IEA R&D Wind's Topical expert meeting on Material recycling and life cycle analysis (LCA) of wind turbines 336 Social Norm Design for Information Exchange Systems with Limited...

265

analysis code system: Topics by E-print Network  

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

We define the user Erkip, Elza 2 A Network Approach to the French System of Legal codes Part I: Analysis Physics Websites Summary: vertices) of codes covering large domains...

266

Complete VAX/VMS DNA/protein sequence analysis system  

SciTech Connect (OSTI)

A complete yet flexible system of programs and database libraries for analysis of DNA, RNA and protein sequences is implemented for VAX/VMS computers. Types of analysis include 1) construction and analysis of chimeric sequences (cloning in the VAX), 2) multiple analysis of one or more single sequences, 3) search and comparison studies using sequence libraries, and 4) direct input and analysis of experimental data. Published groups of programs, including the Staden, Los Alamos, Zuker, Pearson, and PHYLIP programs, are used. GenBank and EMBL DNA libraries and PIR and Doolittle NEWAT protein libraries are available, with associated programs. The system is tutorial, with online documentation for relevent VAX software, the programs, and the databases. The complete documentation is flexibly maintained on reserve via computer printout placed in 3-ring binders. Command files are used extensively; porting of the entire system to another VAX/VMS system requires modification of a single command. Users of the system are members of a VAX group, with automatic implementation of the system upon login. The present system occupies about 140,000 blocks, and is easily expanded, or contracted, as desired. The UCSD system is used extensively for both teaching and research purposes. Use of microcomputers emulating Tektronix 4014 graphics terminals permits saving of graphics output to disk for subsequent modification to generate high quality publishable figures.

Smith, D.W.

1987-05-01T23:59:59.000Z

267

System performance analysis of stretched membrane heliostats  

SciTech Connect (OSTI)

The optical performance of both focused and unfocused stretched membrane heliostats was examined in the context of the overall cost and performance of central receiver systems. The sensitivity of optical performance to variations in design parameters such as the system size (capacity), delivery temperature, heliostat size, and heliostat surface quality was also examined. The results support the conclusion that focused stretched membrane systems provide an economically attractive alternative to current glass/metal heliostats over essentially the entire range of design parameters studied. In addition, unfocused stretched membrane heliostats may be attractive for a somewhat more limited range of applications, which would include the larger plant sizes (e.g., 450 MW) and lower delivery temperatures (e.g., 450/sup 0/C), or situations in which the heliostat size could economically be reduced.

Anderson, J.V.; Murphy, L.M.; Short, W.; Wendelin, T.

1985-12-01T23:59:59.000Z

268

Multi Megawatt Power System Analysis Report  

SciTech Connect (OSTI)

Missions to the outer planets or to near-by planets requiring short times and/or increased payload carrying capability will benefit from nuclear power. A concept study was undertaken to evaluate options for a multi-megawatt power source for nuclear electric propulsion. The nominal electric power requirement was set at 15 MWe with an assumed mission profile of 120 days at full power, 60 days in hot standby, and another 120 days of full power, repeated several times for 7 years of service. Of the numerous options considered, two that appeared to have the greatest promise were a gas-cooled reactor based on the NERVA Derivative design, operating a closed cycle Brayton power conversion system; and a molten lithium-cooled reactor based on SP-100 technology, driving a boiling potassium Rankine power conversion system. This study examined the relative merits of these two systems, seeking to optimize the specific mass. Conclusions were that either concept appeared capable of approaching the specific mass goal of 3-5 kg/kWe estimated to be needed for this class of mission, though neither could be realized without substantial development in reactor fuels technology, thermal radiator mass efficiency, and power conversion and distribution electronics and systems capable of operating at high temperatures. Though the gas-Brayton systems showed an apparent advantage in specific mass, differences in the degree of conservatism inherent in the models used suggests expectations for the two approaches may be similar. Brayton systems eliminate the need to deal with two-phase flows in the microgravity environment of space.

Longhurst, Glen Reed; Harvego, Edwin Allan; Schnitzler, Bruce Gordon; Seifert, Gary Dean; Sharpe, John Phillip; Verrill, Donald Alan; Watts, Kenneth Donald; Parks, Benjamin Travis

2001-11-01T23:59:59.000Z

269

EM threat analysis for wireless systems.  

SciTech Connect (OSTI)

Modern digital radio systems are complex and must be carefully designed, especially when expected to operate in harsh propagation environments. The ability to accurately predict the effects of propagation on wireless radio performance could lead to more efficient radio designs as well as the ability to perform vulnerability analyses before and after system deployment. In this report, the authors--experts in electromagnetic (EM) modeling and wireless communication theory--describe the construction of a simulation environment that is capable of quantifying the effects of wireless propagation on the performance of digital communication.

Burkholder, R. J. (Ohio State University Electroscience Laboratory); Mariano, Robert J.; Schniter, P. (Ohio State University Electroscience Laboratory); Gupta, I. J. (Ohio State University Electroscience Laboratory)

2006-06-01T23:59:59.000Z

270

Analysis of Lyapunov Method for Control of Quantum Systems  

E-Print Network [OSTI]

We present a detailed analysis of the convergence properties of Lyapunov control for finite-dimensional quantum systems based on the application of the LaSalle invariance principle and stability analysis from dynamical systems and control theory. For a certain class of ideal Hamiltonians, convergence results are derived both pure-state and mixed-state control, and the effectiveness of the method for more realistic Hamiltonians is discussed.

Xiaoting Wang; Sonia G. Schirmer

2008-05-19T23:59:59.000Z

271

Interactive modeling and analysis of intruder detection systems  

E-Print Network [OSTI]

INTERACTIVE MODELING AND ANALYSIS OF INTRUDER DETECTION SYSTEMS A Thesis by MICHAEL WILLIAM JONES 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 1991 Major Subject: Industrial Engineering INTERACTIVE MODELING AND ANALYSIS OF INTRUDER DETECTION SYSTEMS A Thesis by MICHAEL WILLIAM JONES Approved as to style and content by: Robert E . Shannon (Co ? Chair of Committee) Kav...

Jones, Michael William

1991-01-01T23:59:59.000Z

272

Interpolating dynamical systems: Applications to experimental data analysis  

SciTech Connect (OSTI)

Experimental data from Rayleigh-Benard convection is used to demonstrate new techniques in data analysis. The data, in the form of Poincare sections, are fit to a map of the plane as a function of a system control parameter. This provides a very useful method for interpolating experimental low-dimensional dynamical systems. The fitted map can then be studied using numerical bifurcation methods or other nonlinear dynamics analysis techniques. 16 refs., 3 figs., 1 tab.

Ecke, R.E.

1991-01-01T23:59:59.000Z

273

Unit hydrograph application to stormwater collection system design and analysis  

E-Print Network [OSTI]

review of each model studied and its capabilities follows. Storm Water Management Model. ? The Storm Water Management Model (SWMM) was developed by the United States Environmental Protection Agency for the analysis of urban stormwater runoff... backwater analysis option uses the Direct Step Method to compute the water surface profiles in the storm sewer system. Two case studies with complex stormwater collection systems were modeled to verify and validate the hydrologic and hydraulic methods...

Spinks, Melvin Gerald

1987-01-01T23:59:59.000Z

274

Energy Engineering & Systems Analysis Success Stories  

E-Print Network [OSTI]

of increasing heat fluxes and power loads in applications as diverse as medical equipment, power electronics, improve energy efficiency and lengthen device lifetime. To satisfy these increasing thermal management for engine or power electronics thermal management. However, these systems contribute to the size and weight

Kemner, Ken

275

Systems reliability analysis for the national ignition facility  

SciTech Connect (OSTI)

A Reliability, Availability and Maintainability (RAM) analysis was initiated for the National Ignition Facility (NIF). The NIF is an inertial confinement fusion research facility designed to achieve controlled thermonuclear reaction; the preferred site for the NIF is the Lawrence Livermore National Laboratory (LLNL). The NIF RAM analysis has three purposes: (1) to allocate top level reliability and availability goals for the systems, (2) to develop an operability model for optimum maintainability, and (3) to determine the achievability of the allocated goals of the RAM parameters for the NIF systems and the facility operation as a whole. An allocation model assigns the reliability and availability goals for front line and support systems by a top-down approach; reliability analysis uses a bottom-up approach to determine the system reliability and availability from component level to system level.

Majumdar, K.C.; Annese, C.E.; MacIntyre, A.T.; Sicherman, A.

1996-06-12T23:59:59.000Z

276

Reachability Analysis of a Biodiesel Production System Using Stochastic Hybrid Systems  

E-Print Network [OSTI]

Reachability Analysis of a Biodiesel Production System Using Stochastic Hybrid Systems Derek Riley defines the creation of biodiesel from soybean oil and methanol. Modeling and analyzing the biodiesel. In this paper we model a biodiesel production system as a stochastic hybrid system, and we present

Koutsoukos, Xenofon D.

277

Dynamical Systems and Applications of Nonlinear Functional Analysis to Dynamical Systems  

E-Print Network [OSTI]

Dynamical Systems and Applications of Nonlinear Functional Analysis to Dynamical Systems Meirong consists of three parts. In Part 1 we introduce some basic concepts in dynamical systems, including limit sets, nonwandering sets, topological conjugacy, clas- sification of discrete dynamical systems under

Zhang, Meirong

278

Flow Analysis on a Limited Volume Chilled Water System  

SciTech Connect (OSTI)

LANL Currently has a limited volume chilled water system for use in a glove box, but the system needs to be updated. Before we start building our new system, a flow analysis is needed to ensure that there are no high flow rates, extreme pressures, or any other hazards involved in the system. In this project the piping system is extremely important to us because it directly affects the overall design of the entire system. The primary components necessary for the chilled water piping system are shown in the design. They include the pipes themselves (perhaps of more than one diameter), the various fitting used to connect the individual pipes to form the desired system, the flow rate control devices (valves), and the pumps that add energy to the fluid. Even the most simple pipe systems are actually quite complex when they are viewed in terms of rigorous analytical considerations. I used an 'exact' analysis and dimensional analysis considerations combined with experimental results for this project. When 'real-world' effects are important (such as viscous effects in pipe flows), it is often difficult or impossible to use only theoretical methods to obtain the desired results. A judicious combination of experimental data with theoretical considerations and dimensional analysis are needed in order to reduce risks to an acceptable level.

Zheng, Lin [Los Alamos National Laboratory

2012-07-31T23:59:59.000Z

279

STAT565: APPLIED TIME SERIES ANALYSIS 16:960:565 SPRING 2013, MONDAY 6:40-9:30 PM, ARC 107 BUS  

E-Print Network [OSTI]

STAT565: APPLIED TIME SERIES ANALYSIS 16:960:565 SPRING 2013, MONDAY 6:40-9:30 PM, ARC 107 BUS 1:30-6:00 pm or by appointment · Email: hxiao@stat.rutgers.edu · Prerequisite. First graduate level courses of Financial Time Series, by Ruey S. Tsay. Wiley, 2010, 3rd. Full text available from MyiLibrary http://lib.myilibrary.com/Open.aspx?id

Shepp, Larry

280

Building integrated photovoltaic systems analysis: Preliminary report  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) has estimated that the deployment of photovoltaics (PV) in the commercial buildings sector has the potential to contribute as much as 40 gigawatts peak electrical generation capacity and displace up to 1.1 quads of primary fuel use. A significant portion of this potential exists for smaller buildings under 25,000 square feet (2,300 square meters) in size or two stories or less, providing a strong cross over potential for residential applications as well. To begin to achieve this potential, research is needed to define the appropriate match of PV systems to energy end-uses in the commercial building sector. This report presents preliminary findings for a technical assessment of several alternative paths to integrate PV with building energy systems.

none,

1993-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Ris National Laboratory Systems Analysis Department  

E-Print Network [OSTI]

.risoe.dk/rispubl/art/2007_76.pdf Value of electric heat boilers and heat pumps for wind power integration Meibom, P.doi.org/10.1002/we.224 #12;1 Value of electric heat boilers and heat pumps for wind power integration 3HWHU 0: European Commission; Contract number: ENK5-CT-2002-00663. .H\\ZRUGV wind power, system integration, heat

282

Vehicle Systems Analysis Technical Team Roadmap  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyTheTwoVulnerabilities | DepartmentReactiveVehicle Systems

283

Analysis of LNG peakshaving-facility release-prevention systems  

SciTech Connect (OSTI)

The purpose of this study is to provide an analysis of release prevention systems for a reference LNG peakshaving facility. An overview assessment of the reference peakshaving facility, which preceeded this effort, identified 14 release scenarios which are typical of the potential hazards involved in the operation of LNG peakshaving facilities. These scenarios formed the basis for this more detailed study. Failure modes and effects analysis and fault tree analysis were used to estimate the expected frequency of each release scenario for the reference peakshaving facility. In addition, the effectiveness of release prevention, release detection, and release control systems were evaluated.

Pelto, P.J.; Baker, E.G.; Powers, T.B.; Schreiber, A.M.; Hobbs, J.M.; Daling, P.M.

1982-05-01T23:59:59.000Z

284

Equivalent circuit analysis applied to the investigation of the driving point impedance of a chemical high frequency analytical instrument  

E-Print Network [OSTI]

LIBRARY A 4 N COLLESE OF TEXAS EQUIVALENT CIRCUIT ANALZSIS APPLIED TO THE ZNVESTIQATION OF THE DRZVINQ POZNT IMPEDANCE OF A CHEMICAL HIQH FREQUENCE AN ALTTZC AL INSTRUMENT A Thesis Laurence Raymond Dausin Subnitted to the Qraduate Sohool... of the Agrioultural and Hechanical College of Texas in partial fulfillment of the requirements for the degree of RASTER OF SCIENCE January 1958 Na J or Sub J eat I Electrioa1 Engineering EQUIVALENT CIRCUIT ANALTSIS APPLIH) TO THE INVESTIGATION OF THE DRIVING...

Dausin, Lawrence Raymond

1958-01-01T23:59:59.000Z

285

Water Rights Analysis Package (WRAP) Daily Modeling System  

E-Print Network [OSTI]

-2011) Contract 582-12-10220 (2011-2013) Technical Report No. 430 Texas Water Resources Institute The Texas A&M University System College Station, Texas 77843-2118 August 2012 ii iii TABLE OF CONTENTS Chapter 1 Water Rights Analysis... Package (WRAP) Modeling System .......................... 1 WRAP Documentation ..................................................................................................... 1 WRAP Programs...

Wurbs, R.; Hoffpauir, R.

2012-10-01T23:59:59.000Z

286

Thermodynamic Analysis of Combined Cycle District Heating System  

E-Print Network [OSTI]

generation systems that include a 10 MW Solar combustion gas turbine, a 4-MW steam turbine, a 100,000 pph heat recovery steam generator (HRSG), three 125,000 pph package boilers, and auxiliary equipment. In the analysis, actual system data is used to assess...

Suresh, S.; Gopalakrishnan, H.; Kosanovic, D.

2011-01-01T23:59:59.000Z

287

FUEL SUPPLY SYSTEM ANALYSIS FOR ESF PACKAGE 1E  

SciTech Connect (OSTI)

The primary objective of this analysis is to capture new inputs relative to the design of the Fuel Supply System (FSS) at the Yucca Mountain Site Characterization Project (YMP) Exploratory Studies Facility (ESF). The new inputs are analyzed and changes to the Fuel Supply System are made as necessary.

D.F. Vanica

1995-06-14T23:59:59.000Z

288

Information-Theoretic Analysis of an Energy Harvesting Communication System  

E-Print Network [OSTI]

Information-Theoretic Analysis of an Energy Harvesting Communication System Omur Ozel Sennur Ulukus@umd.edu ulukus@umd.edu Abstract--In energy harvesting communication systems, an exogenous recharge process supplies energy for the data trans- mission and arriving energy can be buffered in a battery before

Ulukus, Sennur

289

Solar Energy Systems - Research - Systems Analysis - Smart Grid  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment ofat

290

Task 11 - systems analysis of environmental management technologies  

SciTech Connect (OSTI)

A review was conducted of three systems analysis (SA) studies performed by Lockheed Idaho Technologies Company (LITCO) on integrated thermal treatment systems (ITTs) and integrated nonthermal treatment systems (INTSs) for the remediation of mixed low-level waste (MLLW) stored throughout the U.S. Department of Energy (DOE) weapons complex. The review was performed by an independent team led by the Energy & Environment Research Center (EERC), including Science Applications International Corporation (SAIC), the Waste Policy Institute (WPI), and Virginia Tech.

Musich, M.A.

1997-06-01T23:59:59.000Z

291

Function analysis for waste information systems  

SciTech Connect (OSTI)

This study has a two-fold purpose. It seeks to identify the functional requirements of a waste tracking information system and to find feasible alternatives for meeting those requirements on the Oak Ridge Reservation (ORR) and the Portsmouth (PORTS) and Paducah (PGDP) facilities; identify options that offer potential cost savings to the US government and also show opportunities for improved efficiency and effectiveness in managing waste information; and, finally, to recommend a practical course of action that can be immediately initiated. In addition to identifying relevant requirements, it also identifies any existing requirements that are currently not being completely met. Another aim of this study is to carry out preliminary benchmarking by contacting representative companies about their strategic directions in waste information. The information obtained from representatives of these organizations is contained in an appendix to the document; a full benchmarking effort, however, is beyond the intended scope of this study.

Sexton, J.L.; Neal, C.T.; Heath, T.C.; Starling, C.D.

1996-04-01T23:59:59.000Z

292

APPLIED MATHEMATICS & COMPUTATIONAL SCI. (AS) {AMCS}  

E-Print Network [OSTI]

APPLIED MATHEMATICS & COMPUTATIONAL SCI. (AS) {AMCS} 510. (MATH410) Complex Analysis. 520. (MATH420. (MATH432) Game Theory. 567. (BE 567) Mathematical and Computational Modeling of Biological Systems. (M) Prerequisite(s): BE 324 and BE 350. This is an introductory course in mathematical biology. The emphasis

Carpick, Robert W.

293

Next Generation Nuclear Plant Resilient Control System Functional Analysis  

SciTech Connect (OSTI)

Control Systems and their associated instrumentation must meet reliability, availability, maintainability, and resiliency criteria in order for high temperature gas-cooled reactors (HTGRs) to be economically competitive. Research, perhaps requiring several years, may be needed to develop control systems to support plant availability and resiliency. This report functionally analyzes the gaps between traditional and resilient control systems as applicable to HTGRs, which includes the Next Generation Nuclear Plant; defines resilient controls; assesses the current state of both traditional and resilient control systems; and documents the functional gaps existing between these two controls approaches as applicable to HTGRs. This report supports the development of an overall strategy for applying resilient controls to HTGRs by showing that control systems with adequate levels of resilience perform at higher levels, respond more quickly to disturbances, increase operational efficiency, and increase public protection.

Lynne M. Stevens

2010-07-01T23:59:59.000Z

294

Engineering and Applied  

E-Print Network [OSTI]

> Computer Science > Electrical, Computer, and Energy Engineering > Mechanical Engineering 11, Computational Science and Engineering, Energy Systems and Environmental Sustainability, Materials ScienceCollege of Engineering and Applied Science Contact Robert H. Davis, Engineering Dean 303

Stowell, Michael

295

E-Print Network 3.0 - analysis system applicable Sample Search...  

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

and Summary: Dynamic Systems Analysis and Simulation Dynamic Systems Analysis and Simulation (DSAS) Group... members have extensive experience developing novel applications...

296

Pump Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems...  

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

Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems - Executive Summary Pump Life Cycle Costs: A Guide to LCC Analysis for Pumping Systems - Executive Summary This...

297

SciTech Connect: Cost analysis of energy storage systems for...  

Office of Scientific and Technical Information (OSTI)

Cost analysis of energy storage systems for electric utility applications Citation Details In-Document Search Title: Cost analysis of energy storage systems for electric utility...

298

A probability current analysis of energy transport in open quantum systems  

E-Print Network [OSTI]

We introduce a probability current analysis of excitation energy transfer between states of an open quantum system. Expressing the energy transfer through currents of excitation probability between the states in a site representation enables us to gain key insights into the energy transfer dynamics. It allows to, i) identify the pathways of energy transport in large networks of sites and to quantify their relative weights, ii) quantify the respective contributions of unitary dynamics, dephasing, and relaxation/dissipation processes to the energy transfer, and iii) quantify the contribution of coherence to the energy transfer. Our analysis is general and can be applied to a broad range of open quantum system descriptions (with coupling to non-Markovian environments) in a straightforward manner.

Jan J. J. Roden; K. Birgitta Whaley

2015-01-24T23:59:59.000Z

299

Applying MODFLOW to wet grassland in-field habitats: a case study from the Pevensey Levels, UK Hydrology and Earth System Sciences, 7(1), 4355 (2003) EGU  

E-Print Network [OSTI]

Hydrology and Earth System Sciences, 7(1), 43­55 (2003) © EGU Applying MODFLOW to wet grassland in and Hydrology, Wallingford, OX10 8BB, UK Email for corresponding author: rbb@ceh.ac.uk Abstract Historical drainage improvements have created complex hydrological regimes in many low-lying, wet coastal grassland

Paris-Sud XI, Université de

300

Earthquake warning system for infrastructures : a scoping analysis.  

SciTech Connect (OSTI)

This report provides the results of a scoping study evaluating the potential risk reduction value of a hypothetical, earthquake early-warning system. The study was based on an analysis of the actions that could be taken to reduce risks to population and infrastructures, how much time would be required to take each action and the potential consequences of false alarms given the nature of the action. The results of the scoping analysis indicate that risks could be reduced through improving existing event notification systems and individual responses to the notification; and production and utilization of more detailed risk maps for local planning. Detailed maps and training programs, based on existing knowledge of geologic conditions and processes, would reduce uncertainty in the consequence portion of the risk analysis. Uncertainties in the timing, magnitude and location of earthquakes and the potential impacts of false alarms will present major challenges to the value of an early-warning system.

Brodsky, Nancy S.; O'Connor, Sharon L.; Stamber, Kevin Louis; Kelic, Andjelka; Fogleman, William E. (GRIT, Inc., Albuquerque, NM); Vugrin, Eric D.; Corbet, Thomas Frank, Jr.; Brown, Theresa Jean

2011-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Life cycle analysis of energy systems: Methods and experience  

SciTech Connect (OSTI)

Fuel-cycle analysis if not the same as life-cycle analysis, although the focus on defining a comprehensive system for analysis leads toward the same path. This approach was the basis of the Brookhaven Reference Energy System. It provided a framework for summing total effects over an explicitly defined fuel cycle. This concept was computerized and coupled with an extensive data base in ESNS -- the Energy Systems Network Simulator. As an example, ESNS was the analytical basis for a comparison of health and environmental effects of several coal conversion technologies. With advances in computer systems and methods, however, ESNS has not been maintained at Brookhaven. The RES approach was one of the bases of the OECD COMPASS Project and the UNEP comparative assessment of environmental impacts of energy sources. An RES model alone has limitations in analyzing complex energy systems, e.g., it is difficult to handle feedback in the network. The most recent version of a series of optimization models is MARKAL, a dynamic linear programming model now used to assess strategies to reduce greenhouse gas emissions from the energy system. MARKAL creates an optimal set of reference energy systems over multiple time periods, automatically incorporating dynamic feedback and allowing fuel switching and end-use conservation to meet useful energy demands.

Morris, S.C.

1992-08-01T23:59:59.000Z

302

Life cycle analysis of energy systems: Methods and experience  

SciTech Connect (OSTI)

Fuel-cycle analysis if not the same as life-cycle analysis, although the focus on defining a comprehensive system for analysis leads toward the same path. This approach was the basis of the Brookhaven Reference Energy System. It provided a framework for summing total effects over an explicitly defined fuel cycle. This concept was computerized and coupled with an extensive data base in ESNS -- the Energy Systems Network Simulator. As an example, ESNS was the analytical basis for a comparison of health and environmental effects of several coal conversion technologies. With advances in computer systems and methods, however, ESNS has not been maintained at Brookhaven. The RES approach was one of the bases of the OECD COMPASS Project and the UNEP comparative assessment of environmental impacts of energy sources. An RES model alone has limitations in analyzing complex energy systems, e.g., it is difficult to handle feedback in the network. The most recent version of a series of optimization models is MARKAL, a dynamic linear programming model now used to assess strategies to reduce greenhouse gas emissions from the energy system. MARKAL creates an optimal set of reference energy systems over multiple time periods, automatically incorporating dynamic feedback and allowing fuel switching and end-use conservation to meet useful energy demands.

Morris, S.C.

1992-01-01T23:59:59.000Z

303

Control Volume Analysis, Entropy Balance and the Entropy Production in Flow Systems  

E-Print Network [OSTI]

This chapter concerns "control volume analysis", the standard engineering tool for the analysis of flow systems, and its application to entropy balance calculations. Firstly, the principles of control volume analysis are enunciated and applied to flows of conserved quantities (e.g. mass, momentum, energy) through a control volume, giving integral (Reynolds transport theorem) and differential forms of the conservation equations. Several definitions of steady state are discussed. The concept of "entropy" is then established using Jaynes' maximum entropy method, both in general and in equilibrium thermodynamics. The thermodynamic entropy then gives the "entropy production" concept. Equations for the entropy production are then derived for simple, integral and infinitesimal flow systems. Some technical aspects are examined, including discrete and continuum representations of volume elements, the effect of radiation, and the analysis of systems subdivided into compartments. A Reynolds decomposition of the entropy production equation then reveals an "entropy production closure problem" in fluctuating dissipative systems: even at steady state, the entropy production based on mean flow rates and gradients is not necessarily in balance with the outward entropy fluxes based on mean quantities. Finally, a direct analysis of an infinitesimal element by Jaynes' maximum entropy method yields a theoretical framework with which to predict the steady state of a flow system. This is cast in terms of a "minimum flux potential" principle, which reduces, in different circumstances, to maximum or minimum entropy production (MaxEP or MinEP) principles. It is hoped that this chapter inspires others to attain a deeper understanding and higher technical rigour in the calculation and extremisation of the entropy production in flow systems of all types.

Robert K. Niven; Bernd R. Noack

2014-07-21T23:59:59.000Z

304

Independent Component Analysis Applied to Pulse Oximetry in the Estimation of the Arterial Oxygen Saturation (SpO2)  

E-Print Network [OSTI]

pulse oximetry sensor integrated in an Electronic Patch. This system is intended for patients reflective pulse oxime- try based on a novel ring-shaped optical sensor [1], [2], [3]. The Electronic Patch Bakke 23, 2400 Copenhagen NV, Denmark 1 cm LEDs Photo detector Hard plastic capsule Adhesive Fig. 1

305

Applied Science  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmesApplication Acceleration onto MeasurementsApplied

306

Method and system for calibrating acquired spectra for use in spectral analysis  

DOE Patents [OSTI]

A method for calibrating acquired spectra for use in spectral analysis includes performing Gaussian peak fitting to spectra acquired by a plurality of NaI detectors to define peak regions. A Na and annihilation doublet may be located among the peak regions. A predetermined energy level may be applied to one of the peaks in the doublet and a location of a hydrogen peak may be predicted based on the location of at least one of the peaks of the doublet. Control systems for calibrating spectra are also disclosed.

Reber, Edward L. (Idaho Falls, ID); Rohde, Kenneth W. (Idaho Falls, ID); Blackwood, Larry G. (Bozeman, MT)

2010-09-14T23:59:59.000Z

307

Design theoretic analysis of three system modeling frameworks.  

SciTech Connect (OSTI)

This paper analyzes three simulation architectures from the context of modeling scalability to address System of System (SoS) and Complex System problems. The paper first provides an overview of the SoS problem domain and reviews past work in analyzing model and general system complexity issues. It then identifies and explores the issues of vertical and horizontal integration as well as coupling and hierarchical decomposition as the system characteristics and metrics against which the tools are evaluated. In addition, it applies Nam Suh's Axiomatic Design theory as a construct for understanding coupling and its relationship to system feasibility. Next it describes the application of MATLAB, Swarm, and Umbra (three modeling and simulation approaches) to modeling swarms of Unmanned Flying Vehicle (UAV) agents in relation to the chosen characteristics and metrics. Finally, it draws general conclusions for analyzing model architectures that go beyond those analyzed. In particular, it identifies decomposition along phenomena of interaction and modular system composition as enabling features for modeling large heterogeneous complex systems.

McDonald, Michael James

2007-05-01T23:59:59.000Z

308

The Systems Science & Industrial Engineering (SSIE) Department and The Thomas J. Watson School of Engineering and Applied  

E-Print Network [OSTI]

The Systems Science & Industrial Engineering (SSIE) Department and The Thomas J. Watson School professionals, we will open the doors to demonstrate what industrial and systems engineers can contribute to any. We offer the BS degree in industrial and systems engineering (ISE), MEng degree in industrial

Suzuki, Masatsugu

309

Macro-System Model for Hydrogen Energy Systems Analysis in Transportation: Preprint  

SciTech Connect (OSTI)

The Hydrogen Macro System Model (MSM) is a simulation tool that links existing and emerging hydrogen-related models to perform rapid, cross-cutting analysis. It allows analysis of the economics, primary energy-source requirements, and emissions of hydrogen production and delivery pathways.

Diakov, V.; Ruth, M.; Sa, T. J.; Goldsby, M. E.

2012-06-01T23:59:59.000Z

310

Applying Nonlinear Signal Analysis Technologies to Flame Scanner Signals to Improve Staging of Cyclone Boilers for NOx control  

SciTech Connect (OSTI)

Cyclone{trademark} boiler owners continue to drive down NO{sub x} emissions by increasingly sophisticated staging and air distribution schemes. For example, Alliant Energy has employed RMT's SmartBurn{reg_sign} technology, and Ameren UE has pioneered neural nets to reduce emissions. Over the last 11 years under sponsorship of EPRI, the team of ORNL and B&W has developed pulverized coal burner diagnostic technology by applying nonlinear signal analysis techniques to flame scanner signals. The team has extended the technology to cyclones to facilitate deeper staging of the cyclones to reduce NO{sub x} emissions. Development projects were conducted at the Alliant Energy Edgewater Units 3 and 4, and Ameren UE Sioux Unit 1. Nonlinear analysis statistics were correlated to upsets in cyclone operation resulting from poor air distribution in the burner and barrel. The team demonstrated that the lighter and main flame scanners can be used to independently guide adjustments to the burner and barrel.

Flynn, T. J. [Babcock and Wilcox Company, The; Bailey, R. T. [Babcock and Wilcox Company, The; Fuller, T. A. [Babcock and Wilcox Company, The; FINNEY, Charles E A [ORNL; Daw, C Stuart [ORNL; Stallings, J. [Electric Power Research Institute (EPRI); Himes, R. [Electric Power Research Institute (EPRI); Bermke, R. [Alliant Energy

2006-08-01T23:59:59.000Z

311

Methods for air cleaning system design and accident analysis  

SciTech Connect (OSTI)

This paper describes methods, in the form of a handbook and five computer codes, that can be used for air cleaning system design and accident analysis. Four of the codes were developed primarily at the Los Alamos National Laboratory, and one was developed in France. Tools such as these are used to design ventilation systems in the mining industry but do not seem to be commonly used in the nuclear industry. For example, the Nuclear Air Cleaning Handbook is an excellent design reference, but it fails to include information on computer codes that can be used to aid in the design process. These computer codes allow the analyst to use the handbook information to form all the elements of a complete system design. Because these analysis methods are in the form of computer codes, they allow the analyst to investigate many alternative designs. In addition, the effects of many accident scenarios on the operation of the air cleaning system can be evaluated. These tools originally were intended for accident analysis, but they have been used mostly as design tools by several architect-engineering firms. The Cray, VAX, and personal computer versions of the codes, an accident analysis handbook, and the codes' availability will be discussed. The application of these codes to several design operations of nuclear facilities will be illustrated, and their use to analyze the effect of several accident scenarios also will be described.

Gregory, W.S.; Nichols, B.D.

1986-01-01T23:59:59.000Z

312

Transportation Policy Analysis and Systems Planning Fall 2009/2010  

E-Print Network [OSTI]

SYLLABUS WWS 527a Transportation Policy Analysis and Systems Planning Fall 2009/2010 Course Description Part 1. Perspective on the Transportation Sector of the Economy: Its Function, Its Players, Its of Course Elements of the transportation sector of the economy, the player, the technologies

Singh, Jaswinder Pal

313

Analysis of Preventive Maintenance in Transactions Based Software Systems  

E-Print Network [OSTI]

Analysis of Preventive Maintenance in Transactions Based Software Systems Sachin Garg 1 , Antonio''. However, it incurs some overhead. The necessity to do preventive maintenance not only in general purpose to illustrate the usefulness and applicability of the models. Keywords: Preventive Maintenance, Transactions

Telek, Miklós

314

Societal Research Archives System : Retrieval, quality control and analysis  

E-Print Network [OSTI]

Societal Research Archives System : Retrieval, quality control and analysis of comparative data sample selection and data retrieval to correlation, data quality control, and testing for genetic, and White, 1967a). This represents 40 % of the approximate total number of such publications, but over 90

White, Douglas R.

315

A DESIGN AND ANALYSIS TOOL FOR SOLAR ELECTRIC SYSTEMS  

E-Print Network [OSTI]

PV PLANNER A DESIGN AND ANALYSIS TOOL FOR SOLAR ELECTRIC SYSTEMS Updated User Manual May 2011 University of Delaware #12;Mailing Address: John Byrne Director Center for Energy and Environmental Policy) 831-3098 Website: http://ceep.udel.edu The Center for Energy and Environmental Policy conducts

Delaware, University of

316

Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices  

E-Print Network [OSTI]

Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices L'Enfant Plaza, Washington, DC December 4, 2007 SUMMARY REPORT Compiled by Romesh Kumar Argonne National Laboratory Working Group Meeting December 4, 2007 Argonne DC Offices, L'Enfant Plaza, Washington, DC Meeting

317

An Analysis of Heterogeneity in Futuristic Unmanned Vehicle Systems  

E-Print Network [OSTI]

and with enough automation aboard unmanned vehicles, inverting the multiple operators to single-vehicle control1 An Analysis of Heterogeneity in Futuristic Unmanned Vehicle Systems C.E. NEHME M.L. CUMMINGS paradigm is possible. These studies, however, have generally focused on homogeneous teams of vehicles

Cummings, Mary "Missy"

318

Performance Validation and Energy Analysis of HVAC Systems using Simulation  

E-Print Network [OSTI]

that energy savings of between 15% and 40% could be made in commercial buildings by closer monitoring and supervision of energy-usage and related data. An earlier study by Kao and Pierce (1983) showed that sensor1 Performance Validation and Energy Analysis of HVAC Systems using Simulation Tim Salsbury and Rick

Diamond, Richard

319

Development of a Clinical Pathways Analysis System with Adaptive Bayesian  

E-Print Network [OSTI]

Development of a Clinical Pathways Analysis System with Adaptive Bayesian Nets and Data Mining such analyses. The computation of "lift" (a measure of completed pathways improvement potential) leads us an artificial set of such records and use these for clinical pathways analyses. We use data mining software

Kopec, Danny

320

System Analysis and Design Spring 2011, Williston Campus  

E-Print Network [OSTI]

CIS4120 System Analysis and Design Spring 2011, Williston Campus Vermont Technical College Class Meeting: MW 2:25-3:40 BLP 201 Instructor: Craig A. Damon (cdamon@vtc.edu) BLP 424 Williston Office Hours am in Randolph TT and Williston MWF. Course Overview: This course gives students hands-on experience

Damon, Craig A.

Note: This page contains sample records for the topic "applied systems 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

Wind Energy Conversion Systems Fault Diagnosis Using Wavelet Analysis  

E-Print Network [OSTI]

Wind Energy Conversion Systems Fault Diagnosis Using Wavelet Analysis Elie Al-Ahmar1,2 , Mohamed El, induction generator, Discrete Wavelet Transform (DWT), failure diagnosis. I. Introduction Wind energy the condition of induction machines. Fig. 1. Worldwide growth of wind energy installed capacity [1]. 1 E. Al

Paris-Sud XI, Université de

322

Patent systems for encouraging innovation: Lessons from economic analysis1  

E-Print Network [OSTI]

1 Patent systems for encouraging innovation: Lessons from economic analysis1 David ENCAOUA (EUREQua version submitted October 2003) Abstract Economic theory views patents as policy instruments aimed. First, patents may not be the most effective means of protection for inventors to recover R

Boyer, Edmond

323

ARIES-CS MAINTENANCE SYSTEM DEFINITION AND ANALYSIS  

E-Print Network [OSTI]

ARIES-CS MAINTENANCE SYSTEM DEFINITION AND ANALYSIS LESTER M. WAGANER* and RICHARD J. PEIPERT, Jr in the electronic version. I. INTRODUCTION The ARIES studies, sponsored by the U.S. Depart- ment of Energy and led how the physics and coil definition determine and influence the power core elements. Especially

324

Analysis of transmission system faults in the phase domain  

E-Print Network [OSTI]

. With the advanced development of computers, there is a possibility to totally get rid of the sequence method. In this thesis, a short circuit analysis method based on phase domain is developed. After the three sequence admittance matrices of the system are built...

Zhu, Jun

2004-11-15T23:59:59.000Z

325

A MACHINE VISION SYSTEM FOR FORENSIC ANALYSIS Ovidiu Ghita1  

E-Print Network [OSTI]

A MACHINE VISION SYSTEM FOR FORENSIC ANALYSIS Ovidiu Ghita1 , René Gapert2 , Laura Monks1 , Jason Forensic Anthropology Unit, Department of Human Anatomy and Physiology, University College Dublin remains are analysed by forensic anthropologists in order to draw conclusions about the probable identity

Whelan, Paul F.

326

Response margins of the dynamic analysis of piping systems  

SciTech Connect (OSTI)

This report is organized as follows: Section 2 describes the three piping systems of the Zion nuclear power plant which formed the basis of the present study. The auxiliary feedwater (AFW) piping from steam generator to containment, the residual heat removal (RHR) and safety injection piping in the auxiliary building, and the reactor coolant loops (RCL) including a portion of the branch lines were analyzed. Section 3 describes the analysis methods and the analyses performed. Section 4 presents the numerical results; the principal results presented as comparisons of response calculated by best estimate time history analysis methods vs. the SRP response spectrum technique. Section 5 draws conclusions from the results. Appendix A contains a brief description of the mathematical models that defined the structures containing the three piping systems. Response from these models provided input to the piping models. Appendix B provides a detailed derivation of the pseudostatic mode approach to the multisupport time history analysis method used in this study.

Johnson, J.J.; Benda, B.J.; Chuang, T.Y.; Smith, P.D.

1984-04-01T23:59:59.000Z

327

Game theoretic analysis of physical protection system design  

SciTech Connect (OSTI)

The physical protection system (PPS) of a fictional small modular reactor (SMR) facility have been modeled as a platform for a game theoretic approach to security decision analysis. To demonstrate the game theoretic approach, a rational adversary with complete knowledge of the facility has been modeled attempting a sabotage attack. The adversary adjusts his decisions in response to investments made by the defender to enhance the security measures. This can lead to a conservative physical protection system design. Since defender upgrades were limited by a budget, cost benefit analysis may be conducted upon security upgrades. One approach to cost benefit analysis is the efficient frontier, which depicts the reduction in expected consequence per incremental increase in the security budget.

Canion, B.; Schneider, E. [Nuclear and Radiation Engineering Program, University of Texas, 204 E. Dean Keeton Street, Stop C2200, Austin, TX 78712 (United States); Bickel, E.; Hadlock, C.; Morton, D. [Operations Research Program, University of Texas, 204 E. Dean Keeton Street, Stop C2200, Austin, TX 78712 (United States)

2013-07-01T23:59:59.000Z

328

Fire Simulation, Evacuation Analysis and Proposal of Fire Protection Systems Inside an Underground Cavern  

E-Print Network [OSTI]

Fire Simulation, Evacuation Analysis and Proposal of Fire Protection Systems Inside an Underground Cavern

Stella, Carlo

329

Method for reliability analysis of complex reactor systems. [LMFBR  

SciTech Connect (OSTI)

A method and a computer code for efficient and accurate reliability analyses of complex reactor systems are described and illustrated through an example. The method permits realistic analyses through its ability to accurately model and evaluate instantaneous and average unavailabilities for large systems with dependencies. The component models can include continuously monitored, non-repairable, and periodically tested components which are subject to failures resulting from components which are subject to failures resulting from component demands, stand-by conditions, human errors associated with testing and repair, as well as failures during actual operation. The numerical process used is efficient and allows analysis of general system configurations with arbitrary scheduling of maintenance operations.

Elerath, J.G.; Vaurio, J.K.; Wood, A.P.

1982-01-01T23:59:59.000Z

330

Introduction to Geographic Information System (GIS) and Geospatial Analysis Instructor: Dr. I-Kuai Hung  

E-Print Network [OSTI]

GIS 551 Introduction to Geographic Information System (GIS) and Geospatial Analysis Fall 2010 Outcomes: Students will demonstrate competency in the fundamentals of GIS and geospatial analysis system for the management, analysis, and display of geographic information. GIS includes a set

Hung, I-Kuai

331

Control sensitivity indices for stability analysis of HVdc systems  

SciTech Connect (OSTI)

This paper presents a new concept called the ``Control Sensitivity Index`` of CSI, for the stability analysis of HVdc converters connected to weak ac systems. The CSI for a particular control mode can be defined as the ratio of incremental changes in the two system variables that are most relevant to that control mode. The index provides valuable information on the stability of the system and, unlike other approaches, aids in the design of the controller. It also plays an important role in defining non-linear gains for the controller. This paper offers a generalized formulation of CSI and demonstrates its application through an analysis of the CSI for three modes of HVdc control. The conclusions drawn from the analysis are confirmed by a detailed electromagnetic transients simulation of the ac/dc system. The paper concludes that the CSI can be used to improve the controller design and, for an inverter in a weak ac system, the conventional voltage control mode is more stable than the conventional {gamma} control mode.

Nayak, O.B.; Gole, A.M. [Univ. of Manitoba, Winnipeg, Manitoba (Canada)] [Univ. of Manitoba, Winnipeg, Manitoba (Canada); Chapman, D.G.; Davies, J.B. [Manitoba Hydro, Winnipeg, Manitoba (Canada)] [Manitoba Hydro, Winnipeg, Manitoba (Canada)

1995-10-01T23:59:59.000Z

332

Effective time-independent analysis for quantum kicked systems  

E-Print Network [OSTI]

We present a mapping of potentially chaotic time-dependent quantum kicked systems to an equivalent effective time-independent scenario, whereby the system is rendered integrable. The time-evolution is factorized into an initial kick, followed by an evolution dictated by a time-independent Hamiltonian and a final kick. This method is applied to the kicked top model. The effective time-independent Hamiltonian thus obtained, does not suffer from spurious divergences encountered if the traditional Baker-Cambell-Hausdorff treatment is used. The quasienergy spectrum of the Floquet operator is found to be in excellent agreement with the energy levels of the effective Hamiltonian for a wide range of system parameters. The density of states for the effective system exhibits sharp peak-like features, pointing towards quantum criticality. The dynamics in the classical limit of the integrable effective Hamiltonian shows remarkable agreement with the non-integrable map corresponding to the actual time-dependent system in the non-chaotic regime. This suggests that the effective Hamiltonian serves as a substitute for the actual system in the non-chaotic regime at both the quantum and classical level.

Jayendra N. Bandyopadhyay; Tapomoy Guha Sarkar

2014-09-04T23:59:59.000Z

333

Nonlinear Analysis of a Two DOF Piecewise Linear Aeroelastic System  

E-Print Network [OSTI]

.37) For the purpose of numerical simulations the system is presented in the following first order from 1 2 3 4, , ,x y x y x x? ?? ?? ? ? ? (2.38) 2 3eff x x? ? ? ? (2.39) 1 2 2 2 1 2 1 2 3 4 2 4 3 4 4 3 ( ) ( ) l eff l eff x x x p x x p C x x... x p x p x C ? ? ? ? ? ? ? ? ? ? ? ? ? ? (2.40) 18 2.2.2 The piecewise linear aerodynamic model Applying the same scales to the piecewise linear model and substituting into the equations of motion, the following set...

Elgohary, Tarek Adel Abdelsalam

2011-10-21T23:59:59.000Z

334

System efficiency analysis for high power solid state radio frequency transmitter  

SciTech Connect (OSTI)

This paper examines some important relationships, related with the system efficiency, for very high power, radio frequency solid-state transmitter; incorporating multiple solid-state power amplifier modules, power combiners, dividers, couplers, and control/interlock hardware. In particular, the characterization of such transmitters, at the component as well as the system level, is discussed. The analysis for studying the influence of the amplitude and phase imbalance, on useful performance parameters like system efficiency and power distribution is performed. This analysis is based on a scattering parameter model. This model serves as a template for fine-tuning the results, with the help of a system level simulator. For experimental study, this approach is applied to a recently designed modular and scalable solid-state transmitter, operating at the centre frequency of 505.8?MHz and capable of delivering a continuous power of 75 kW. Such first time presented, system level study and experimental characterization for the real time operation will be useful for the high power solid-state amplifier designs, deployed in particle accelerators.

Jain, Akhilesh, E-mail: ajain@rrcat.gov.in; Sharma, D. K.; Gupta, A. K.; Lad, M. R.; Hannurkar, P. R. [RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452013 (India)] [RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore 452013 (India); Pathak, S. K. [Electromagnetics and Microwave Engineering, Institute for Plasma Research, Gandhinagar 382 428 (India)] [Electromagnetics and Microwave Engineering, Institute for Plasma Research, Gandhinagar 382 428 (India)

2014-02-15T23:59:59.000Z

335

Improvement of extraction efficiency from a compact synchrotron for proton beam therapy by applying particle tracking analysis  

SciTech Connect (OSTI)

Various types of synchrotrons are used for particle beam therapy. In particle beam therapy, especially in proton beam therapy, downsizing of the accelerator system is a major concern. A compact synchrotron dedicated for proton beam therapy is presented. The synchrotron is horizontally weakly focusing and consists of 4 H-type zerogradient dipole magnets and 4 quadrupole magnets. The circumference of the ring is a little shorter than 18 m, and the energies are up to 230MeV. Beam extraction from the synchrotron is performed by RF-driven slow extraction technology. Two sextupole magnets set in adjacent straight sections form a horizontal separatrix which is fixed during the beam extraction. Horizontal RF voltage excites betatron oscillation of the circulating beam, and protons exceeding the separatrix are extracted by an electrostatic deflector and a horizontal septum dipole magnet. To achieve adequately high extraction efficiency, the relationship between the extraction efficiency and the horizontal chromaticity of the ring is analyzed by particle tracking simulation. The horizontal chromaticity with maximum extraction efficiency is half of the theoretical value because of the distortion of the horizontal separatrix for the extraction. With this chromaticity, the spiral-step of the extracted particle is independent of the momentum deviation of the particle, and the separatrix across the electrostatic septum electrodes is superpositioned.

Ebina, Futaro; Umezawa, Masumi; Hiramoto, Kazuo [Hitachi Research Laboratory, Hitachi, Ltd. 2-1, Omika-cho 7-chome, Hitachi-shi, Ibaraki-ken, 319-1221 (Japan)

2013-04-19T23:59:59.000Z

336

GCtool for fuel cell systems design and analysis : user documentation.  

SciTech Connect (OSTI)

GCtool is a comprehensive system design and analysis tool for fuel cell and other power systems. A user can analyze any configuration of component modules and flows under steady-state or dynamic conditions. Component models can be arbitrarily complex in modeling sophistication and new models can be added easily by the user. GCtool also treats arbitrary system constraints over part or all of the system, including the specification of nonlinear objective functions to be minimized subject to nonlinear, equality or inequality constraints. This document describes the essential features of the interpreted language and the window-based GCtool environment. The system components incorporated into GCtool include a gas flow mixer, splitier, heater, compressor, gas turbine, heat exchanger, pump, pipe, diffuser, nozzle, steam drum, feed water heater, combustor, chemical reactor, condenser, fuel cells (proton exchange membrane, solid oxide, phosphoric acid, and molten carbonate), shaft, generator, motor, and methanol steam reformer. Several examples of system analysis at various levels of complexity are presented. Also given are instructions for generating two- and three-dimensional plots of data and the details of interfacing new models to GCtool.

Ahluwalia, R.K.; Geyer, H.K.

1999-01-15T23:59:59.000Z

337

Failure and Reliability Analysis for the Master Pump Shutdown System  

SciTech Connect (OSTI)

The Master Pump Shutdown System (MPSS) will be installed in the 200 Areas of the Hanford Site to monitor and control the transfer of liquid waste between tank farms and between the 200 West and 200 East areas through the Cross-Site Transfer Line. The Safety Function provided by the MPSS is to shutdown any waste transfer process within or between tank farms if a waste leak should occur along the selected transfer route. The MPSS, which provides this Safety Class Function, is composed of Programmable Logic Controllers (PLCs), interconnecting wires, relays, Human to Machine Interfaces (HMI), and software. These components are defined as providing a Safety Class Function and will be designated in this report as MPSS/PLC. Input signals to the MPSS/PLC are provided by leak detection systems from each of the tank farm leak detector locations along the waste transfer route. The combination of the MPSS/PLC, leak detection system, and transfer pump controller system will be referred to as MPSS/SYS. The components addressed in this analysis are associated with the MPSS/SYS. The purpose of this failure and reliability analysis is to address the following design issues of the Project Development Specification (PDS) for the MPSS/SYS (HNF 2000a): (1) Single Component Failure Criterion, (2) System Status Upon Loss of Electrical Power, (3) Physical Separation of Safety Class cables, (4) Physical Isolation of Safety Class Wiring from General Service Wiring, and (5) Meeting the MPSS/PLC Option 1b (RPP 1999) Reliability estimate. The failure and reliability analysis examined the system on a component level basis and identified any hardware or software elements that could fail and/or prevent the system from performing its intended safety function.

BEVINS, R.R.

2000-09-05T23:59:59.000Z

338

PVUSA instrumentation and data analysis techniques for photovoltaic systems  

SciTech Connect (OSTI)

The Photovoltaics for Utility Scale Applications (PVUSA) project tests two types of PV systems at the main test site in Davis, California: new module technologies fielded as 20-kW Emerging Module Technology (EMT) arrays and more mature technologies fielded as 70- to 500-kW turnkey Utility-Scale (US) systems. PVUSA members have also installed systems in their service areas. Designed appropriately, data acquisition systems (DASs) can be a convenient and reliable means of assessing system performance, value, and health. Improperly designed, they can be complicated, difficult to use and maintain, and provide data of questionable validity. This report documents PVUSA PV system instrumentation and data analysis techniques and lessons learned. The report is intended to assist utility engineers, PV system designers, and project managers in establishing an objective, then, through a logical series of topics, facilitate selection and design of a DAS to meet the objective. Report sections include Performance Reporting Objectives (including operational versus research DAS), Recommended Measurements, Measurement Techniques, Calibration Issues, and Data Processing and Analysis Techniques. Conclusions and recommendations based on the several years of operation and performance monitoring are offered. This report is one in a series of 1994--1995 PVUSA reports documenting PVUSA lessons learned at the demonstration sites in Davis and Kerman, California. Other topical reports address: five-year assessment of EMTs; validation of the Kerman 500-kW grid support PV plant benefits; construction and safety experience in installing and operating PV systems; balance-of-system design and costs; procurement, acceptance, and rating practices for PV power plants; experience with power conditioning units and power quality.

Newmiller, J.; Hutchinson, P.; Townsend, T.; Whitaker, C.

1995-10-01T23:59:59.000Z

339

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

SciTech Connect (OSTI)

This study is a requirements document that presents analysis for the functional description for 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. The requirements in this study apply to the first phase of the W314 Project. This document has been updated during the definitive design portion of the first phase of the W314 Project to capture additional software requirements and is planned to be updated during the second phase of the W314 Project to cover the second phase of the project's scope.

BEVINS, R.R.

2000-09-20T23:59:59.000Z

340

Control system analysis for off-peak auxiliary heating of passive solar systems  

SciTech Connect (OSTI)

A computer simulation method is presented for the design of an electrical auxiliary energy system for passive solar heated structures. The system consists of electrical mats buried in the ground underneath the structure. Energy is stored in the ground during utility off-peak hours and released passively to the heated enclosure. An optimal control strategy is used to determine the system design parameters of depth of mat placement and minimum instaled electrical heating capacity. The optimal control applies combinations of fixed duration energy pulses to the heater, which minimize the room temperature error-squared for each day, assuming advance knowledge of the day's weather. Various realizable control schemes are investigated in an attempt to find a system that approaches the performance of the optimal control system.

Murray, H.S.; Melsa, J.L.; Balcomb, J.D.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Technical analysis of prospective photovoltaic systems in Utah.  

SciTech Connect (OSTI)

This report explores the technical feasibility of prospective utility-scale photovoltaic system (PV) deployments in Utah. Sandia National Laboratories worked with Rocky Mountain Power (RMP), a division of PacifiCorp operating in Utah, to evaluate prospective 2-megawatt (MW) PV plants in different locations with respect to energy production and possible impact on the RMP system and customers. The study focused on 2-MW{sub AC} nameplate PV systems of different PV technologies and different tracking configurations. Technical feasibility was evaluated at three different potential locations in the RMP distribution system. An advanced distribution simulation tool was used to conduct detailed time-series analysis on each feeder and provide results on the impacts on voltage, demand, voltage regulation equipment operations, and flicker. Annual energy performance was estimated.

Quiroz, Jimmy Edward; Cameron, Christopher P.

2012-02-01T23:59:59.000Z

342

Safety analysis report for packaging (onsite) doorstop samplecarrier system  

SciTech Connect (OSTI)

The Doorstop Sample Carrier System consists of a Type B certified N-55 overpack, U.S. Department of Transportation (DOT) specification or performance-oriented 208-L (55-gal) drum (DOT 208-L drum), and Doorstop containers. The purpose of the Doorstop Sample Carrier System is to transport samples onsite for characterization. This safety analysis report for packaging (SARP) provides the analyses and evaluation necessary to demonstrate that the Doorstop Sample Carrier System meets the requirements and acceptance criteria for both Hanford Site normal transport conditions and accident condition events for a Type B package. This SARP also establishes operational, acceptance, maintenance, and quality assurance (QA) guidelines to ensure that the method of transport for the Doorstop Sample Carrier System is performed safely in accordance with WHC-CM-2-14, Hazardous Material Packaging and Shipping.

Obrien, J.H.

1997-02-24T23:59:59.000Z

343

Notes 07. Undamped Modal Analysis of MDOF systems  

E-Print Network [OSTI]

(mathematical jargon): 12 where = and ? ? ? ? = = A?? ? MK (11) Eq.(9) is a set of n-homogenous algebraic equations. A nontrivial solution, ?? 0 exists if and only if the determinant ? of the system of equations is zero, i.e. 2 0??=? =M+K (12... in the direction of one DOF, say k, depends on or it is coupled to the motion in the other degrees of freedom, j=1,2?n. In the analysis below, for a proper choice of generalized coordinates, known as principal or natural coordinates, the system of n...

San Andres, Luis

2008-01-01T23:59:59.000Z

344

Spectral analysis for semi-infinite mass-spring systems  

E-Print Network [OSTI]

We study how the spectrum of a Jacobi operator changes when this operator is modified by a certain finite rank perturbation. The operator corresponds to an infinite mass-spring system and the perturbation is obtained by modifying one interior mass and one spring of this system. In particular, there are detailed results of what happens in the spectral gaps and which eigenvalues do not move under the modifications considered. These results were obtained by a new tecnique of comparative spectral analysis and they generalize and include previous results for finite and infinite Jacobi matrices.

Rafael del Rio; Luis O. Silva

2014-07-29T23:59:59.000Z

345

A new tool for accelerator system modeling and analysis  

SciTech Connect (OSTI)

A novel computer code is being developed to generate system level designs of radiofrequency ion accelerators. The goal of the Accelerator System Model (ASM) code is to create a modeling and analysis tool that is easy to use, automates many of the initial design calculations, supports trade studies used in assessing alternate designs and yet is flexible enough to incorporate new technology concepts as they emerge. Hardware engineering parameters and beam dynamics are modeled at comparable levels of fidelity. Existing scaling models of accelerator subsystems were sued to produce a prototype of ASM (version 1.0) working within the Shell for Particle Accelerator Related Codes (SPARC) graphical user interface. A small user group has been testing and evaluating the prototype for about a year. Several enhancements and improvements are now being developed. The current version (1.1) of ASM is briefly described and an example of the modeling and analysis capabilities is illustrated.

Gillespie, G.H.; Hill, B.W. [G.H. Gillespie Associates, Inc., Del Mar, CA (United States); Jameson, R.A. [Los Alamos National Lab., NM (United States)

1994-09-01T23:59:59.000Z

346

Simulated, Emulated, and Physical Investigative Analysis (SEPIA) of networked systems.  

SciTech Connect (OSTI)

This report describes recent progress made in developing and utilizing hybrid Simulated, Emulated, and Physical Investigative Analysis (SEPIA) environments. Many organizations require advanced tools to analyze their information system's security, reliability, and resilience against cyber attack. Today's security analysis utilize real systems such as computers, network routers and other network equipment, computer emulations (e.g., virtual machines) and simulation models separately to analyze interplay between threats and safeguards. In contrast, this work developed new methods to combine these three approaches to provide integrated hybrid SEPIA environments. Our SEPIA environments enable an analyst to rapidly configure hybrid environments to pass network traffic and perform, from the outside, like real networks. This provides higher fidelity representations of key network nodes while still leveraging the scalability and cost advantages of simulation tools. The result is to rapidly produce large yet relatively low-cost multi-fidelity SEPIA networks of computers and routers that let analysts quickly investigate threats and test protection approaches.

Burton, David P.; Van Leeuwen, Brian P.; McDonald, Michael James; Onunkwo, Uzoma A.; Tarman, Thomas David; Urias, Vincent E.

2009-09-01T23:59:59.000Z

347

Trajectory analysis and optimization system (TAOS) user`s manual  

SciTech Connect (OSTI)

The Trajectory Analysis and Optimization System (TAOS) is software that simulates point--mass trajectories for multiple vehicles. It expands upon the capabilities of the Trajectory Simulation and Analysis program (TAP) developed previously at Sandia National Laboratories. TAOS is designed to be a comprehensive analysis tool capable of analyzing nearly any type of three degree-of-freedom, point-mass trajectory. Trajectories are broken into segments, and within each segment, guidance rules provided by the user control how the trajectory is computed. Parametric optimization provides a powerful method for satisfying mission-planning constraints. Althrough TAOS is not interactive, its input and output files have been designed for ease of use. When compared to TAP, the capability to analyze trajectories for more than one vehicle is the primary enhancement, although numerous other small improvements have been made. This report documents the methods used in TAOS as well as the input and output file formats.

Salguero, D.E.

1995-12-01T23:59:59.000Z

348

Systems analysis of past, present, and future chemical terrorism scenarios.  

SciTech Connect (OSTI)

Throughout history, as new chemical threats arose, strategies for the defense against chemical attacks have also evolved. As a part of an Early Career Laboratory Directed Research and Development project, a systems analysis of past, present, and future chemical terrorism scenarios was performed to understand how the chemical threats and attack strategies change over time. For the analysis, the difficulty in executing chemical attack was evaluated within a framework of three major scenario elements. First, historical examples of chemical terrorism were examined to determine how the use of chemical threats, versus other weapons, contributed to the successful execution of the attack. Using the same framework, the future of chemical terrorism was assessed with respect to the impact of globalization and new technologies. Finally, the efficacy of the current defenses against contemporary chemical terrorism was considered briefly. The results of this analysis justify the need for continued diligence in chemical defense.

Hoette, Trisha Marie

2012-03-01T23:59:59.000Z

349

NREL's System Advisor Model Simplifies Complex Energy Analysis (Fact Sheet)  

SciTech Connect (OSTI)

NREL has developed a tool -- the System Advisor Model (SAM) -- that can help decision makers analyze cost, performance, and financing of any size grid-connected solar, wind, or geothermal power project. Manufacturers, engineering and consulting firms, research and development firms, utilities, developers, venture capital firms, and international organizations use SAM for end-to-end analysis that helps determine whether and how to make investments in renewable energy projects.

Not Available

2015-01-01T23:59:59.000Z

350

Transportation Routing Analysis Geographic Information System (TRAGIS) User's Manual  

SciTech Connect (OSTI)

The Transportation Routing Analysis Geographic Information System (TRAGIS) model is used to calculate highway, rail, or waterway routes within the United States. TRAGIS is a client-server application with the user interface and map data files residing on the user's personal computer and the routing engine and network data files on a network server. The user's manual provides documentation on installation and the use of the many features of the model.

Johnson, PE

2003-09-18T23:59:59.000Z

351

System and method for high precision isotope ratio destructive analysis  

DOE Patents [OSTI]

A system and process are disclosed that provide high accuracy and high precision destructive analysis measurements for isotope ratio determination of relative isotope abundance distributions in liquids, solids, and particulate samples. The invention utilizes a collinear probe beam to interrogate a laser ablated plume. This invention provides enhanced single-shot detection sensitivity approaching the femtogram range, and isotope ratios that can be determined at approximately 1% or better precision and accuracy (relative standard deviation).

Bushaw, Bruce A; Anheier, Norman C; Phillips, Jon R

2013-07-02T23:59:59.000Z

352

Safety analysis report for packaging (onsite) sample pig transport system  

SciTech Connect (OSTI)

This Safety Analysis Report for Packaging (SARP) provides a technical evaluation of the Sample Pig Transport System as compared to the requirements of the U.S. Department of Energy, Richland Operations Office (RL) Order 5480.1, Change 1, Chapter III. The evaluation concludes that the package is acceptable for the onsite transport of Type B, fissile excepted radioactive materials when used in accordance with this document.

MCCOY, J.C.

1999-03-16T23:59:59.000Z

353

A graph-based system for network-vulnerability analysis  

SciTech Connect (OSTI)

This paper presents a graph-based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The graph-based tool can identify the set of attack paths that have a high probability of success (or a low effort cost) for the attacker. The system could be used to test the effectiveness of making configuration changes, implementing an intrusion detection system, etc. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level-of-effort for the attacker, various graph algorithms such as shortest-path algorithms can identify the attack paths with the highest probability of success.

Swiler, L.P.; Phillips, C.

1998-06-01T23:59:59.000Z

354

Comparative analysis of net energy balance for satellite power systems (SPS) and other energy systems  

SciTech Connect (OSTI)

The net energy balance of seven electric energy systems is assessed: two coal-based, one nuclear, two terrestrial solar, and two solar power satellites, with principal emphasis on the latter two systems. Solar energy systems require much less operating energy per unit of electrical output. However, on the basis of the analysis used here, coal and nuclear systems are two to five times more efficient at extracting useful energy from the primary resource base than are the solar energy systems. The payback period for all systems is less than 1.5 years, except for the terrestrial photovoltaic (19.8 yr) and the solar power satellite system (6.4 yr), both of which rely on energy-intensive silicon cells.

Cirillo, R.R.; Cho, B.S.; Monarch, M.R.; Levine, E.P.

1980-04-01T23:59:59.000Z

355

Decision Support Systems to Identify Efficient Beef Production Systems Collecting individual phenotype data in cattle is expensive; therefore, scientific approaches that integrate and apply accumulated  

E-Print Network [OSTI]

Decision Support Systems to Identify Efficient Beef Production Systems Collecting individual impact of beef production. Objective The objective is to develop a decision-support system and Cornell Value Discovery System) and found that genetic correlations between observed and predicted intakes

356

Uncertainty and sensitivity analysis for photovoltaic system modeling.  

SciTech Connect (OSTI)

We report an uncertainty and sensitivity analysis for modeling DC energy from photovoltaic systems. We consider two systems, each comprised of a single module using either crystalline silicon or CdTe cells, and located either at Albuquerque, NM, or Golden, CO. Output from a PV system is predicted by a sequence of models. Uncertainty in the output of each model is quantified by empirical distributions of each model's residuals. We sample these distributions to propagate uncertainty through the sequence of models to obtain an empirical distribution for each PV system's output. We considered models that: (1) translate measured global horizontal, direct and global diffuse irradiance to plane-of-array irradiance; (2) estimate effective irradiance from plane-of-array irradiance; (3) predict cell temperature; and (4) estimate DC voltage, current and power. We found that the uncertainty in PV system output to be relatively small, on the order of 1% for daily energy. Four alternative models were considered for the POA irradiance modeling step; we did not find the choice of one of these models to be of great significance. However, we observed that the POA irradiance model introduced a bias of upwards of 5% of daily energy which translates directly to a systematic difference in predicted energy. Sensitivity analyses relate uncertainty in the PV system output to uncertainty arising from each model. We found that the residuals arising from the POA irradiance and the effective irradiance models to be the dominant contributors to residuals for daily energy, for either technology or location considered. This analysis indicates that efforts to reduce the uncertainty in PV system output should focus on improvements to the POA and effective irradiance models.

Hansen, Clifford W.; Pohl, Andrew Phillip; Jordan, Dirk [National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO] [National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, CO

2013-12-01T23:59:59.000Z

357

E-Print Network 3.0 - advanced system analysis Sample Search...  

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

analysis Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced system analysis Page: << < 1 2 3 4 5 > >> 1 MIT LINCOLN LABORATORY ORGANIZATION...

358

Applying an intelligent and automated emissions measurement system to characterize the RF environment for supporting wireless technologies  

SciTech Connect (OSTI)

The use of wireless technologies in commercial and industrial facilities has grown significantly in the past several years. New applications of wireless technologies with increasing frequency and varying radiated power are being developed everyday. Wireless application specialists and end users have already identified several sources of electromagnetic interference (EMI) in these facilities. Interference has been reported between wireless devices and between these devices and other types of electronic equipment either using frequencies in the unlicensed wireless spectrum or equipment that may generate undesired man-made noise in this spectrum. Facilities that are not using the wireless band should verify the spectral quality of that band and the electromagnetic compatibility (EMC) integrity of safety-related power and signal cables before installing wireless technologies. With the introduction of new wireless devices in the same electromagnetic space where analog and digital I and C systems and cables must co-exist, the ability of facility managers to manage their spectra will dictate the degree of interference between wireless devices and other electronic equipment. Because of the unknowns associated with interference with analog and digital I and C systems in the wireless band, nuclear power plants have been slow to introduce wireless technologies in plant areas. With the application of newly developed advanced radiated emissions measurement systems that can record, process, and analyze radiated and conducted emissions in a cost-effective manner, facility managers can more reliably characterize potential locations for wireless technologies, including potential coupling effects with safety-related power and signal cables, with increased confidence that the risks associated with creating an interference can be significantly reduced. This paper will present an effective philosophy already being used in other mission-critical applications for managing EMC, an overview of wireless emissions sources, the need for EMC characterization of power and signal cables with exposure to wireless devices, and an intelligent and automated emissions measurement system. Such a system can be used in nuclear power plants to determine the spectral quality of the wireless band, the EMC characterization of power and signal cables, and if wireless technologies can be collocated in plants while reducing the risk of interference with I and C systems. (authors)

Keebler, P. F.; Phipps, K. O. [EPRI Solutions, 942 Corridor Park Blvd, Knoxville, TN 37932 (United States)

2006-07-01T23:59:59.000Z

359

Final Report on Utilization of TRU TRISO Fuel as Applied to HTR Systems Part I: Pebble Bed Reactors  

SciTech Connect (OSTI)

The Deep-Burn (DB) concept [ ] focuses on the destruction of transuranic nuclides from used light water reactor (LWR) fuel. These transuranic nuclides are incorporated into tri-isotopic (TRISO) coated fuel particles and used in gas-cooled reactors with the aim of a fractional fuel burnup of 60 to 70% in fissions per initial metal atom (FIMA). This high performance is expected through the use of multiple recirculation passes of the fuel in pebble form without any physical or chemical changes between passes. In particular, the concept does not call for reprocessing of the fuel between passes. In principle, the DB pebble bed concept employs the same reactor designs as the presently envisioned low-enriched uranium core designs, such as the 400 MWth Pebble Bed Modular Reactor (PBMR-400) [ ]. Although it has been shown in the previous Fiscal Year (FY) (2009) that a PuO2 fueled pebble bed reactor concept is viable, achieving a high fuel burnup while remaining within safety-imposed prescribed operational limits for fuel temperature, power peaking, and temperature reactivity feedback coefficients for the entire temperature range, is challenging. The presence of the isotopes 239Pu, 240Pu, and 241Pu that have resonances in the thermal energy range significantly modifies the neutron thermal energy spectrum as compared to a standard, UO2-fueled core. Therefore, the DB pebble bed core exhibits a relatively hard neutron energy spectrum. However, regions within the pebble bed that are near the graphite reflectors experience a locally softer spectrum. This can lead to power and temperature peaking in these regions. Furthermore, a shift of the thermal energy spectrum with increasing temperature can lead to increased absorption in the resonances of the fissile Pu isotopes. This can lead to a positive temperature reactivity coefficient for the graphite moderator under certain operating conditions. Regarding the coated particle performance, the FY 2009 investigations showed that no significant failure is to be expected for the reference fuel particle during normal operation. It was found, however, that the sensitivity of the coating stress to the CO production in the kernel was large. The CO production is expected to be higher in DB fuel than in UO2 fuel, but its exact level has a high uncertainty. Furthermore, in the fuel performance analysis transient conditions were not yet taken into account. The effort of this task in FY 2010 has focused on the optimization of the core to maximize the pebble discharge burnup level, while retaining its inherent safety characteristics. Using generic pebble bed reactor cores, this task will perform physics calculations to evaluate the capabilities of the pebble bed reactor to perform utilization and destruction of LWR used-fuel transuranics. The task will use established benchmarked models, and will introduce modeling advancements appropriate to the nature of the fuel considered (high transuranic [TRU] content and high burn-up). Accomplishments of this work include: •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel. •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel and Uranium. •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel and Modified Open Cycle Components. •Core analysis of a HTR-MODULE design loaded with Deep-Burn fuel and Americium targets.

Brian Boer; Abderrafi M. Ougouag

2011-03-01T23:59:59.000Z

360

Analysis of reactor trips originating in balance of plant systems  

SciTech Connect (OSTI)

This report documents the results of an analysis of balance-of-plant (BOP) related reactor trips at commercial US nuclear power plants of a 5-year period, from January 1, 1984, through December 31, 1988. The study was performed for the Plant Systems Branch, Office of Nuclear Reactor Regulation, US Nuclear Regulatory Commission. The objectives of the study were: to improve the level of understanding of BOP-related challenges to safety systems by identifying and categorizing such events; to prepare a computerized data base of BOP-related reactor trip events and use the data base to identify trends and patterns in the population of these events; to investigate the risk implications of BOP events that challenge safety systems; and to provide recommendations on how to address BOP-related concerns in regulatory context. 18 refs., 2 figs., 27 tabs.

Stetson, F.T.; Gallagher, D.W.; Le, P.T.; Ebert, M.W. (Science Applications International Corp., McLean, VA (USA))

1990-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

SCALE 6: Comprehensive Nuclear Safety Analysis Code System  

SciTech Connect (OSTI)

Version 6 of the Standardized Computer Analyses for Licensing Evaluation (SCALE) computer software system developed at Oak Ridge National Laboratory, released in February 2009, contains significant new capabilities and data for nuclear safety analysis and marks an important update for this software package, which is used worldwide. This paper highlights the capabilities of the SCALE system, including continuous-energy flux calculations for processing multigroup problem-dependent cross sections, ENDF/B-VII continuous-energy and multigroup nuclear cross-section data, continuous-energy Monte Carlo criticality safety calculations, Monte Carlo radiation shielding analyses with automated three-dimensional variance reduction techniques, one- and three-dimensional sensitivity and uncertainty analyses for criticality safety evaluations, two- and three-dimensional lattice physics depletion analyses, fast and accurate source terms and decay heat calculations, automated burnup credit analyses with loading curve search, and integrated three-dimensional criticality accident alarm system analyses using coupled Monte Carlo criticality and shielding calculations.

Bowman, Stephen M [ORNL

2011-01-01T23:59:59.000Z

362

Heat Transfer Analysis and Assessment of Kinetics Systems for PBX 9501  

SciTech Connect (OSTI)

The study of thermal decomposition in high explosive (HE) charges has been an ongoing process since the early 1900s. This work is specifically directed towards the analysis of PBX 9501. In the early 1970s, Dwight Jaeger of Los Alamos National Laboratory (LANL) developed a single-step, two-species kinetics system that was used in the development of one of the first finite element codes for thermal analyses known as EXPLO. Jaeger's research focused on unconfined spherical samples of HE charges to determine if varied heating ramps would cause detonation or deflagration. Tarver and McGuire of Lawrence Livermore National Laboratory (LLNL) followed soon after with a three-step, four-species kinetics system that was developed for confined spheres under relatively fast heating conditions. Peter Dickson et al. of LANL then introduced a kinetics system with four steps and five species that included bimolecular products to capture the effects of the endothermic phase change that the HE undergoes. The results of four experiments are examined to study the effectiveness of these kinetics systems. The experiments are: (1) The LLNL scaled thermal explosion (STEX) experiments on confined cylindrical charges with long heating ramps in the range of 90 hours. (2) The LLNL one-dimensional time to explosion (ODTX) experiments on spherical charges that include confined, partially confined, and aged HE experiments. (3) The LANL unconfined one-dimensional experiments for small spheres. (4) The Naval Air Warfare Center Weapons Division at China Lake experiments on small confined cylinders. The three kinetics systems are applied to each of the four experiments with the use of the finite element analysis (FEA) heat conduction solver COYOTE. The numerical results using the kinetics systems are compared to each other and to the experimental data to determine which kinetics systems are best suited for analyzing conditions such as time to ignition, containment, heating time, and location of ignition.

Jeffrey W. Jorenby

2006-07-31T23:59:59.000Z

363

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.

364

System seismic analysis of an innovative primary system for a large pool type LMFBR plant  

SciTech Connect (OSTI)

The system seismic analysis of an innovative primary system for a large pool type liquid metal fast breeder reactor (LMFBR) plant is presented. In this primary system, the reactor core is supported in a way which differs significantly from that used in previous designs. The analytical model developed for this study is a three-dimensional finite element model including one-half of the primary system cut along the plane of symmetry. The model includes the deck and deck mounted components,the reactor vessel, the core support structure, the core barrel, the radial neutron shield, the redan, and the conical support skirt. The sodium contained in the primary system is treated as a lumped mass appropriately distributed among various components. The significant seismic behavior as well as the advantages of this primary system design are discussed in detail.

Pan, Y.C.; Wu, T.S.; Cha, B.K.; Burelbach, J.; Seidensticker, R.

1984-01-01T23:59:59.000Z

365

Power system fault analysis based on intelligent techniques and intelligent electronic device data  

E-Print Network [OSTI]

This dissertation has focused on automated power system fault analysis. New contributions to fault section estimation, protection system performance evaluation and power system/protection system interactive simulation have been achieved. Intelligent...

Luo, Xu

2007-09-17T23:59:59.000Z

366

SAFETY ANALYSIS AND INTEGRATION FOR ROBOTIC SYSTEMS -APPLICATION TO A  

E-Print Network [OSTI]

Analysis (FMEA) and Fault Tree Analysis (FTA) which identify potential unit errors resulting in hazards

Guiochet, Jérémie

367

Enhanced Accident Tolerant Fuels for LWRS - A Preliminary Systems Analysis  

SciTech Connect (OSTI)

The severe accident at Fukushima Daiichi nuclear plants illustrates the need for continuous improvements through developing and implementing technologies that contribute to safe, reliable and cost-effective operation of the nuclear fleet. Development of enhanced accident tolerant fuel contributes to this effort. These fuels, in comparison with the standard zircaloy – UO2 system currently used by the LWR industry, should be designed such that they tolerate loss of active cooling in the core for a longer time period (depending on the LWR system and accident scenario) while maintaining or improving the fuel performance during normal operations, operational transients, and design-basis events. This report presents a preliminary systems analysis related to most of these concepts. The potential impacts of these innovative LWR fuels on the front-end of the fuel cycle, on the reactor operation and on the back-end of the fuel cycle are succinctly described without having the pretension of being exhaustive. Since the design of these various concepts is still a work in progress, this analysis can only be preliminary and could be updated as the designs converge on their respective final version.

Gilles Youinou; R. Sonat Sen

2013-09-01T23:59:59.000Z

368

Waste Isolation Pilot Plant TruDock crane system analysis  

SciTech Connect (OSTI)

The WIPP TruDock crane system located in the Waste Handling Building was identified in the WIPP Safety Analysis Report (SAR), November 1995, as a potential accident concern due to failures which could result in a dropped load. The objective of this analysis is to evaluate the frequency of failure of the TruDock crane system resulting in a dropped load and subsequent loss of primary containment, i.e. drum failure. The frequency of dropped loads was estimated to be 9.81E-03/year or approximately one every 102 years (or, for the 25% contingency, 7.36E-03/year or approximately one every 136 years). The dominant accident contributor was the failure of the cable/hook assemblies, based on failure data obtained from NUREG-0612, as analyzed by PLG, Inc. The WIPP crane system undergoes a rigorous test and maintenance program, crane operation is discontinued following any abnormality, and the crane operator and load spotter are required to be trained in safe crane operation, therefore it is felt that the WIPP crane performance will exceed the data presented in NUREG-0612 and the estimated failure frequency is felt to be conservative.

Morris, B.C. [Westinghouse Electric Corp., Pittsburgh, PA (United States); Carter, M. [Westinghouse Electric Corp., Carlsbad, NM (United States). Waste Isolation Div.

1996-10-01T23:59:59.000Z

369

System diagnostics using qualitative analysis and component functional classification  

DOE Patents [OSTI]

A method for detecting and identifying faulty component candidates during off-normal operations of nuclear power plants involves the qualitative analysis of macroscopic imbalances in the conservation equations of mass, energy and momentum in thermal-hydraulic control volumes associated with one or more plant components and the functional classification of components. The qualitative analysis of mass and energy is performed through the associated equations of state, while imbalances in momentum are obtained by tracking mass flow rates which are incorporated into a first knowledge base. The plant components are functionally classified, according to their type, as sources or sinks of mass, energy and momentum, depending upon which of the three balance equations is most strongly affected by a faulty component which is incorporated into a second knowledge base. Information describing the connections among the components of the system forms a third knowledge base. The method is particularly adapted for use in a diagnostic expert system to detect and identify faulty component candidates in the presence of component failures and is not limited to use in a nuclear power plant, but may be used with virtually any type of thermal-hydraulic operating system.

Reifman, Jaques (Lisle, IL); Wei, Thomas Y. C. (Downers Grove, IL)

1993-01-01T23:59:59.000Z

370

System diagnostics using qualitative analysis and component functional classification  

DOE Patents [OSTI]

A method for detecting and identifying faulty component candidates during off-normal operations of nuclear power plants involves the qualitative analysis of macroscopic imbalances in the conservation equations of mass, energy and momentum in thermal-hydraulic control volumes associated with one or more plant components and the functional classification of components. The qualitative analysis of mass and energy is performed through the associated equations of state, while imbalances in momentum are obtained by tracking mass flow rates which are incorporated into a first knowledge base. The plant components are functionally classified, according to their type, as sources or sinks of mass, energy and momentum, depending upon which of the three balance equations is most strongly affected by a faulty component which is incorporated into a second knowledge base. Information describing the connections among the components of the system forms a third knowledge base. The method is particularly adapted for use in a diagnostic expert system to detect and identify faulty component candidates in the presence of component failures and is not limited to use in a nuclear power plant, but may be used with virtually any type of thermal-hydraulic operating system. 5 figures.

Reifman, J.; Wei, T.Y.C.

1993-11-23T23:59:59.000Z

371

The best use of biomass? Greenhouse gas lifecycle analysis of predicted pyrolysis biochar systems.  

E-Print Network [OSTI]

??Life cycle analysis is carried out for 11 predicted configurations of pyrolysis biochar systems to determine greenhouse gas balance, using an original spreadsheet model. System… (more)

Hammond, James A R

2009-01-01T23:59:59.000Z

372

Fuel-Cycle Analysis of Hydrogen-Powered Fuel-Cell Systems with...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Fuel-Cycle Analysis of Hydrogen-Powered Fuel-Cell Systems with the GREET Model Fuel-Cycle Analysis of Hydrogen-Powered Fuel-Cell Systems with the GREET Model This presentation by...

373

System Modeling, Analysis, and Optimization Methodology for Diesel Exhaust After-treatment Technologies  

E-Print Network [OSTI]

System Modeling, Analysis, and Optimization Methodology for Diesel Exhaust After;System Modeling, Analysis, and Optimization Methodology for Diesel Exhaust After-treatment Technologies Developing new aftertreatment technologies to meet emission regulations for diesel engines is a growing

de Weck, Olivier L.

374

Global Systems-Level Analysis of Hfq and SmpB Deletion Mutants...  

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

Systems-Level Analysis of Hfq and SmpB Deletion Mutants in Salmonella: Implications for Virulence and Global Protein Global Systems-Level Analysis of Hfq and SmpB Deletion Mutants...

375

A shoe-integrated sensor system for wireless gait analysis and real-time therapeutic feedback  

E-Print Network [OSTI]

Clinical gait analysis currently involves either an expensive analysis in a motion laboratory, using highly accurate, if cumbersome, kinematic systems, or a qualitative analysis with a physician or physical therapist making ...

Morris, Stacy J., 1974-

2004-01-01T23:59:59.000Z

376

Challenges in the Modeling and Quantitative Analysis of Safety-Critical Automotive Systems!  

E-Print Network [OSTI]

! Probabilistic FMEA! Probabilistic Analysis of System Architectures! ! Conclusion! 3! #12;ISO 26262: Road! ,,identify Failures"! - Qualitative FMEA! ! - Qualitative Fault Tree Analysis! ! - Event Tree Analysis! Quantitative Methods! ,,predict frequency of failures"! - Quantitative FMEA! ! - Quantitative Fault Tree

Leue, Stefan

377

Understanding resonant tunnel transport in non-identical and non-aligned clusters as applied to disordered carbon systems  

SciTech Connect (OSTI)

We study the conductance spectra and the corresponding current-voltage characteristics of a set of three impurity clusters of different sizes arranged in the form of a scalene triangle and compare with the transport of their horizontal and vertical configurations. The tuning capability of resonant tunnelling features in a quantum dot device made of these non-aligned impurity clusters is demonstrated by re-distributing their diameters and inter-cluster distances in a systematic manner. By manipulating the inter-cluster coupling for a scalene triangular configuration, the transition of current-voltage curves from a step-like feature to a negative differential resistance can be produced. This process also yields conductance features for triangular configurations, which can be compared to the quantum dot structures perfectly aligned to the direction of the propagating wavevector. The strength of inter-cluster coupling or order parameter for these configurations is analysed from the relative variation of the width and the energy difference of the sharp and broad peaks observed in the density of states spectra. Based on the relative change of the inter-cluster coupling with the cluster configurations, a transport model applicable to structurally inhomogeneous systems is proposed in order to explain the experimentally observed variation of the energy band gap with the disorder parameters.

Bhattacharyya, Somnath, E-mail: Somnath.Bhattacharyya@wits.ac.za [Nano-Scale Transport Physics Laboratory, School of Physics, University of the Witwatersrand, Private Bag 3, WITS 2050 Johannesburg (South Africa); School of Physics and Astronomy, University of Leeds, E C Stoner Laboratory, Leeds LS2 9JT (United Kingdom); Churochkin, Dmitry [Nano-Scale Transport Physics Laboratory, School of Physics, University of the Witwatersrand, Private Bag 3, WITS 2050 Johannesburg (South Africa)

2014-10-21T23:59:59.000Z

378

H C26 Performance Analysis of Optica1 Interconnection Systems Inch-ing  

E-Print Network [OSTI]

Analysis of Optica1 Interconnection Systems Inch- ing T ransmitter T emperature Dependence .è ¯ � , � � ì

Choi, Woo-Young

379

E-Print Network 3.0 - analysis software system Sample Search...  

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

Design Software Systems... Required Requirements Engineering Software Engineering Prjct Economic Analysis of Engineering... Project 12;4 November 2003 ......

380

A Coincidence Signature Library for Multicoincidence Radionuclide Analysis Systems  

SciTech Connect (OSTI)

Pacific Northwest National Laboratory (PNNL) is currently developing multicoincidence systems to perform trace radionuclide analysis at or near the sample collection point, for applications that include emergency response, nuclear forensics, and environmental monitoring. Quantifying radionuclide concentrations with these systems requires a library of accurate emission intensities for each detected signature, for all candidate radionuclides. To meet this need, a Coincidence Lookup Library (CLL) is being developed to calculate the emission intensities of coincident signatures from a user-specified radionuclide, or conversely, to determine the radionuclides that may be responsible for a specific detected coincident signature. The algorithms used to generate absolute emission intensities and various query modes for our developmental CLL are described.

Smith, Leon E.; Ellis, J E.; Valsan, Andrei B.; Aalseth, Craig E.; Miley, Harry S.

2003-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Thermal analysis of directly buried conduit heat-distribution systems  

SciTech Connect (OSTI)

The calculations of heat losses and temperature field for directly buried conduit heat distribution systems were performed using the finite element computer programs. The finite element analysis solved two-dimensional, steady-state heat transfer problems involving two insulated parallel pipes encased in the same conduit casing and in separate casings, and the surrounding earth. Descriptions of the theoretical basis, computational scheme, and the data input and outputs of the developed computer programs are presented. Numerical calculations were carried out for predicting the temperature distributions within the existing high temperature hot water distribution system and two insulated pipes covered in the same metallic conduit and the surrounding soil. The predicted results generally agree with the experimental data obtained at the test site.

Fang, J.B.

1990-08-01T23:59:59.000Z

382

Data analysis using the Gnu R system for statistical computation  

SciTech Connect (OSTI)

R is a language system for statistical computation. It is widely used in statistics, bioinformatics, machine learning, data mining, quantitative finance, and the analysis of clinical drug trials. Among the advantages of R are: it has become the standard language for developing statistical techniques, it is being actively developed by a large and growing global user community, it is open source software, it is highly portable (Linux, OS-X and Windows), it has a built-in documentation system, it produces high quality graphics and it is easily extensible with over four thousand extension library packages available covering statistics and applications. This report gives a very brief introduction to R with some examples using lattice QCD simulation results. It then discusses the development of R packages designed for chi-square minimization fits for lattice n-pt correlation functions.

Simone, James; /Fermilab

2011-07-01T23:59:59.000Z

383

Shielding analysis of the NAC-MPC storage system  

SciTech Connect (OSTI)

This paper presents the shielding analyses of the NAC-MPC dry cask storage system. The NAC-MPC dry cask storage system consists of a transportable storage canister, a transfer cask, and a vertical concrete storage cask. The NAC-MPC is designed to accommodate 36 {open_quotes}Yankee Class{close_quotes} fuel assemblies with a maximum burnup of 36,000 MWd/tonne U burnup and 8 yr cooling time. The shielding analysis is performed with the SCALE 4.3 code package which includes SAS2H for source term generation and SAS4A, a modification of SAS4, for shielding evaluations. SAS4 utilizes a one-dimensional XSDRNPM adjoint calculation of the cask to generate biasing parameters for a three-dimensional MORSE-SGC Monte Carlo model of the cask geometry.

Napolitano, D.G.; Romano, N.J. [NAC International, Norcross, GA (United States); Hertel, N.E. [Georgia Institute of Technology, Atlanta, GA (United States)] [and others

1997-12-01T23:59:59.000Z

384

A proposed cost-benefit analysis model for physical form analysis for a futuristic submarine decision support system  

E-Print Network [OSTI]

This thesis proposes a model for cost-benefit analysis for physical form selection of a decision support tool, primarily to support system acquisition decisions that need to be made early in the system life cycle. By ...

Bhattacharjee, Dhiman

2007-01-01T23:59:59.000Z

385

Life-cycle analysis results of geothermal systems in comparison to other power systems.  

SciTech Connect (OSTI)

A life-cycle energy and greenhouse gas emissions analysis has been conducted with Argonne National Laboratory's expanded Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model for geothermal power-generating technologies, including enhanced geothermal, hydrothermal flash, and hydrothermal binary technologies. As a basis of comparison, a similar analysis has been conducted for other power-generating systems, including coal, natural gas combined cycle, nuclear, hydroelectric, wind, photovoltaic, and biomass by expanding the GREET model to include power plant construction for these latter systems with literature data. In this way, the GREET model has been expanded to include plant construction, as well as the usual fuel production and consumption stages of power plant life cycles. For the plant construction phase, on a per-megawatt (MW) output basis, conventional power plants in general are found to require less steel and concrete than renewable power systems. With the exception of the concrete requirements for gravity dam hydroelectric, enhanced geothermal and hydrothermal binary used more of these materials per MW than other renewable power-generation systems. Energy and greenhouse gas (GHG) ratios for the infrastructure and other life-cycle stages have also been developed in this study per kilowatt-hour (kWh) of electricity output by taking into account both plant capacity and plant lifetime. Generally, energy burdens per energy output associated with plant infrastructure are higher for renewable systems than conventional ones. GHG emissions per kWh of electricity output for plant construction follow a similar trend. Although some of the renewable systems have GHG emissions during plant operation, they are much smaller than those emitted by fossil fuel thermoelectric systems. Binary geothermal systems have virtually insignificant GHG emissions compared to fossil systems. Taking into account plant construction and operation, the GREET model shows that fossil thermal plants have fossil energy use and GHG emissions per kWh of electricity output about one order of magnitude higher than renewable power systems, including geothermal power.

Sullivan, J. L.; Clark, C. E.; Han, J.; Wang, M.; Energy Systems

2010-10-11T23:59:59.000Z

386

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 7, NO. 2, MAY 1992, PP. 673 683. POINT OF COLLAPSE METHODS APPLIED TO AC DC POWER SYSTEMS  

E-Print Network [OSTI]

-node bifurcations in power systems including high voltage direct current HVDC transmission. Bus voltage pro les, become plausible when the dynamics for the HVDC system are included. Keywords: Voltage collapse, HVDC the subject of increasing study over the past few years 1 . Furthermore, the relative wide spread use of HVDC

Cañizares, Claudio A.

387

Sediment Budget Analysis System (SBAS) for ArcGIS 10 -User's Guide Page 1 of 49  

E-Print Network [OSTI]

Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 1 of 49 CESAM-OPJ-GIS Document current as of March 28, 2012 10:27 AM Sediment Budget Analysis System (SBAS) for ArcGIS 10 User's Guide D R AFT #12;Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 2 of 49 CESAM

US Army Corps of Engineers

388

Sediment Budget Analysis System (SBAS) for ArcGIS 10 -User's Guide Page 1 of 50  

E-Print Network [OSTI]

Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 1 of 50 CESAM-OPJ-GIS Document current as of June 27, 2012 10:09 AM Sediment Budget Analysis System (SBAS) for ArcGIS 10 User's Guide D R AFT #12;Sediment Budget Analysis System (SBAS) for ArcGIS 10 - User's Guide Page 2 of 50 CESAM

US Army Corps of Engineers

389

Dairy Analytics and Nutrient Analysis (DANA) Prototype System User Manual  

SciTech Connect (OSTI)

This document is a user manual for the Dairy Analytics and Nutrient Analysis (DANA) model. DANA provides an analysis of dairy anaerobic digestion technology and allows users to calculate biogas production, co-product valuation, capital costs, expenses, revenue and financial metrics, for user customizable scenarios, dairy and digester types. The model provides results for three anaerobic digester types; Covered Lagoons, Modified Plug Flow, and Complete Mix, and three main energy production technologies; electricity generation, renewable natural gas generation, and compressed natural gas generation. Additional options include different dairy types, bedding types, backend treatment type as well as numerous production, and economic parameters. DANA’s goal is to extend the National Market Value of Anaerobic Digester Products analysis (informa economics, 2012; Innovation Center, 2011) to include a greater and more flexible set of regional digester scenarios and to provide a modular framework for creation of a tool to support farmer and investor needs. Users can set up scenarios from combinations of existing parameters or add new parameters, run the model and view a variety of reports, charts and tables that are automatically produced and delivered over the web interface. DANA is based in the INL’s analysis architecture entitled Generalized Environment for Modeling Systems (GEMS) , which offers extensive collaboration, analysis, and integration opportunities and greatly speeds the ability construct highly scalable web delivered user-oriented decision tools. DANA’s approach uses server-based data processing and web-based user interfaces, rather a client-based spreadsheet approach. This offers a number of benefits over the client-based approach. Server processing and storage can scale up to handle a very large number of scenarios, so that analysis of county, even field level, across the whole U.S., can be performed. Server based databases allow dairy and digester parameters be held and managed in a single managed data repository, while allows users to customize standard values and perform individual analysis. Server-based calculations can be easily extended, versions and upgrades managed, and any changes are immediately available to all users. This user manual describes how to use and/or modify input database tables, run DANA, view and modify reports.

Sam Alessi; Dennis Keiser

2012-10-01T23:59:59.000Z

390

An Analysis of Anonymity in the Bitcoin System  

E-Print Network [OSTI]

Abstract—Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a complicated issue. Within the system, users are identified by public-keys only. An attacker wishing to de-anonymize its users will attempt to construct the oneto-many mapping between users and public-keys and associate information external to the system with the users. Bitcoin frustrates this attack by storing the mapping of a user to his or her public-keys on that user’s node only and by allowing each user to generate as many public-keys as required. In this paper we consider the topological structure of two networks derived from Bitcoin’s public transaction history. We show that the two networks have a non-trivial topological structure, provide complementary views of the Bitcoin system and have implications for anonymity. We combine these structures with external information and techniques such as context discovery and flow analysis to investigate an alleged theft of Bitcoins, which, at the time of the theft, had a market value of approximately half a million U.S. dollars.

Fergal Reid; Martin Harrigan

1107-01-01T23:59:59.000Z

391

An Analysis of Anonymity in the Bitcoin System  

E-Print Network [OSTI]

Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a complicated issue. Within the system, users are identified by public-keys only. An attacker wishing to de-anonymize its users will attempt to construct the oneto- many mapping between users and public-keys and associate information external to the system with the users. Bitcoin frustrates this attack by storing the mapping of a user to his or her public-keys on that user's node only and by allowing each user to generate as many public-keys as required. In this paper we consider the topological structure of two networks derived from Bitcoin's public transaction history. We show that the two networks have a non-trivial topological structure, provide complementary views of the Bitcoin system and have implications for anonymity. We combine these structures with external information and techniques such as context discovery and flow analysis to investigate an alleged theft of Bitcoins, which, at the time of the theft, had a market value of approx...

Reid, Fergal

2011-01-01T23:59:59.000Z

392

Analysis of LNG import terminal release prevention systems  

SciTech Connect (OSTI)

The release prevention systems of liquefied natural gas (LNG) import terminal were analyzed. A series of potential release scenarios were analyzed to determine the frequency of the release events, the probability these releases are not stopped or isolated by emergency shutdown systems, the estimated release quantities, and the critical components of the system. The two plant areas identified as being most significant with respect to safety are the unloading system and the storage system. Rupture of the main transfer line and gross failure of the storage tanks are the two release scenarios of primary safety interest. Reducing the rate of failure by improved design, better maintenance and testing, or adding redundancy of the critical system components for these plant areas and release scenarios will result in improved safety. Several design alternatives which have the potential to significantly reduce the probability of a large release of LNG occurring at an import terminal are identified. These design alternatives would reduce the probability of a large release of LNG by reducing the expected number of failures which could cause a release or by reducing the magnitude of releases that do occur. All of these alternatives are technically feasible and have been used or considered for use in at least one LNG facility. A more rigorous analysis of the absolute risk of LNG import terminal operation is necessary before the benefits of these design alternatives can be determined. In addition, an economic evaluation of these alternatives must be made so the costs and benefits can be compared. It is concludd that for remotely located facilities many of these alternatives are probably not justified; however, for facilities located in highly populated areas, these alternatives deserve serious consideration.

Baker, E G

1982-04-01T23:59:59.000Z

393

Power Systems Life Cycle Analysis Tool (Power L-CAT).  

SciTech Connect (OSTI)

The Power Systems L-CAT is a high-level dynamic model that calculates levelized production costs and tracks environmental performance for a range of electricity generation technologies: natural gas combined cycle (using either imported (LNGCC) or domestic natural gas (NGCC)), integrated gasification combined cycle (IGCC), supercritical pulverized coal (SCPC), existing pulverized coal (EXPC), nuclear, and wind. All of the fossil fuel technologies also include an option for including carbon capture and sequestration technologies (CCS). The model allows for quick sensitivity analysis on key technical and financial assumptions, such as: capital, O&M, and fuel costs; interest rates; construction time; heat rates; taxes; depreciation; and capacity factors. The fossil fuel options are based on detailed life cycle analysis reports conducted by the National Energy Technology Laboratory (NETL). For each of these technologies, NETL's detailed LCAs include consideration of five stages associated with energy production: raw material acquisition (RMA), raw material transport (RMT), energy conversion facility (ECF), product transportation and distribution (PT&D), and end user electricity consumption. The goal of the NETL studies is to compare existing and future fossil fuel technology options using a cradle-to-grave analysis. The NETL reports consider constant dollar levelized cost of delivered electricity, total plant costs, greenhouse gas emissions, criteria air pollutants, mercury (Hg) and ammonia (NH3) emissions, water withdrawal and consumption, and land use (acreage).

Andruski, Joel; Drennen, Thomas E.

2011-01-01T23:59:59.000Z

394

A graph-based network-vulnerability analysis system  

SciTech Connect (OSTI)

This paper presents a graph based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level of effort for the attacker, various graph algorithms such as shortest path algorithms can identify the attack paths with the highest probability of success.

Swiler, L.P.; Phillips, C.; Gaylor, T.

1998-05-03T23:59:59.000Z

395

A graph-based network-vulnerability analysis system  

SciTech Connect (OSTI)

This report presents a graph-based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The analysis system requires as input a database of common attacks, broken into atomic steps, specific network configuration and topology information, and an attacker profile. The attack information is matched with the network configuration information and an attacker profile to create a superset attack graph. Nodes identify a stage of attack, for example the class of machines the attacker has accessed and the user privilege level he or she has compromised. The arcs in the attack graph represent attacks or stages of attacks. By assigning probabilities of success on the arcs or costs representing level-of-effort for the attacker, various graph algorithms such as shortest-path algorithms can identify the attack paths with the highest probability of success.

Swiler, L.P.; Phillips, C. [Sandia National Labs., Albuquerque, NM (United States); Gaylor, T. [3M, Austin, TX (United States). Visual Systems Div.

1998-01-01T23:59:59.000Z

396

Computer Models for IRIS Control System Transient Analysis  

SciTech Connect (OSTI)

This report presents results of the Westinghouse work performed under Task 3 of this Financial Assistance Award and it satisfies a Level 2 Milestone for the project. Task 3 of the collaborative effort between ORNL, Brazil and Westinghouse for the International Nuclear Energy Research Initiative entitled “Development of Advanced Instrumentation and Control for an Integrated Primary System Reactor” focuses on developing computer models for transient analysis. This report summarizes the work performed under Task 3 on developing control system models. The present state of the IRIS plant design – such as the lack of a detailed secondary system or I&C system designs – makes finalizing models impossible at this time. However, this did not prevent making considerable progress. Westinghouse has several working models in use to further the IRIS design. We expect to continue modifying the models to incorporate the latest design information until the final IRIS unit becomes operational. Section 1.2 outlines the scope of this report. Section 2 describes the approaches we are using for non-safety transient models. It describes the need for non-safety transient analysis and the model characteristics needed to support those analyses. Section 3 presents the RELAP5 model. This is the highest-fidelity model used for benchmark evaluations. However, it is prohibitively slow for routine evaluations and additional lower-fidelity models have been developed. Section 4 discusses the current Matlab/Simulink model. This is a low-fidelity, high-speed model used to quickly evaluate and compare competing control and protection concepts. Section 5 describes the Modelica models developed by POLIMI and Westinghouse. The object-oriented Modelica language provides convenient mechanisms for developing models at several levels of detail. We have used this to develop a high-fidelity model for detailed analyses and a faster-running simplified model to help speed the I&C development process. Section 6 describes an ACSL model that Westinghouse started but suspended developing for the moment. ACSL is an old simulation language that Westinghouse used on many projects. It may (or may not) offer some advantages during the later stages of detailed plant design and analysis, but supporting the ACSL model does not appear to be necessary at this time. Section 7 summarizes our expectations for future development.

Gary D. Storrick; Bojan Petrovic; Luca Oriani

2007-01-31T23:59:59.000Z

397

On-line DNA analysis system with rapid thermal cycling  

DOE Patents [OSTI]

An apparatus particularly suited for subjecting biological samples to any necessary sample preparation tasks, subjecting the sample to rapid thermal cycling, and then subjecting the sample to subsequent on-line analysis using one or more of a number of analytical techniques. The apparatus includes a chromatography device including an injection means, a chromatography pump, and a chromatography column. In addition, the apparatus also contains a capillary electrophoresis device consisting of a capillary electrophoresis column with an inlet and outlet end, a means of injection, and means of applying a high voltage to cause the differential migration of species of interest through the capillary column. Effluent from the liquid chromatography column passes over the inlet end of the capillary electrophoresis column through a tee structure and when the loading of the capillary electrophoresis column is desired, a voltage supply is activated at a precise voltage and polarity over a specific duration to cause sample species to be diverted from the flowing stream to the capillary electrophoresis column. A laser induced fluorescence detector preferably is used to analyze the products separated while in the electrophoresis column.

Swerdlow, Harold P. (Salt Lake City, UT); Wittwer, Carl T. (Salt Lake City, UT)

1999-01-01T23:59:59.000Z

398

On-line DNA analysis system with rapid thermal cycling  

DOE Patents [OSTI]

This application describes an apparatus particularly suited for subjecting biological samples to any necessary sample preparation tasks, subjecting the sample to rapid thermal cycling, and then subjecting the sample to subsequent on-line analysis using one or more of a number of analytical techniques. The apparatus includes a chromatography device including an injection means, a chromatography pump, and a chromatography column. In addition, the apparatus also contains a capillary electrophoresis device consisting of a capillary electrophoresis column with an inlet and outlet end, a means of injection, and means of applying a high voltage to cause the differential migration of species of interest through the capillary column. Effluent from the liquid chromatography column passes over the inlet end of the capillary electrophoresis column through a tee structure and when the loading of the capillary electrophoresis column is desired, a voltage supply is activated at a precise voltage and polarity over a specific duration to cause sample species to be diverted from the flowing stream to the capillary electrophoresis column. A laser induced fluorescence detector preferably is used to analyze the products separated while in the electrophoresis column. 6 figs.

Swerdlow, H.P.; Wittwer, C.T.

1999-08-10T23:59:59.000Z

399

Data Management and Analysis for the Earth System Grid  

SciTech Connect (OSTI)

The international climate community is expected to generate hundreds of petabytes of simulation data within the next five to seven years. This data must be accessed and analyzed by thousands of analysts worldwide in order to provide accurate and timely estimates of the likely impact of climate change on physical, biological, and human systems. Climate change is thus not only a scientific challenge of the first order but also a major technological challenge. To address this technological challenge, the Earth System Grid Center for Enabling Technologies (ESG-CET) has been established within the U.S. Department of Energy's Scientific Discovery through Advanced Computing (SciDAC)-2 program, with support from the offices of Advanced Scientific Computing Research and Biological and Environmental Research. ESG-CET's mission is to provide climate researchers worldwide with access to the data, information, models, analysis tools, and computational capabilities required to make sense of enormous climate simulation datasets. Its specific goals are to (1) make data more useful to climate researchers by developing Grid technology that enhances data usability; (2) meet specific distributed database, data access, and data movement needs of national and international climate projects; (3) provide a universal and secure web-based data access portal for broad multi-model data collections; and (4) provide a wide-range of Grid-enabled climate data analysis tools and diagnostic methods to international climate centers and U.S. government agencies. Building on the successes of the previous Earth System Grid (ESG) project, which has enabled thousands of researchers to access tens of terabytes of data from a small number of ESG sites, ESG-CET is working to integrate a far larger number of distributed data providers, high-bandwidth wide-area networks, and remote computers in a highly collaborative problem-solving environment.

Williams, D N; Ananthakrishnan, R; Bernholdt, D; Bharathi, S; Brown, D; Chen, M; Chervenak, A L; Cinquini, L; Drach, R; Foster, I T; Fox, P; Hankin, S; Henson, V; Jones, P; Middleton, D E; Schwidder, J; Schweitzer, R; Schuler, R; Shoshani, A; Siebenlist, F; Sim, A; Strand, W G; Wilhelmi, N; Su, M

2008-06-19T23:59:59.000Z

400

What is Biomedical Engineering? Biomedical engineers are professionally trained to apply engineering  

E-Print Network [OSTI]

What is Biomedical Engineering? Biomedical engineers are professionally trained to apply engineering analysis and design to clinical applications. Biomedical engineers understand how the human body diseases and injuries. The systems designed by biomedical engineers will improve patient outcomes

Lu, Chang

Note: This page contains sample records for the topic "applied systems 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

A Mobile Motion Analysis System Using Intertial Sensors for Analysis of Lower Limb Prosthetics  

SciTech Connect (OSTI)

Soldiers returning from the global war on terror requiring lower leg prosthetics generally have different concerns and requirements than the typical lower leg amputee. These subjects are usually young, wish to remain active and often desire to return to active military duty. As such, they demand higher performance from their prosthetics, but are at risk for chronic injury and joint conditions in their unaffected limb. Motion analysis is a valuable tool in assessing the performance of new and existing prosthetic technologies as well as the methods in fitting these devices to both maximize performance and minimize risk of injury for the individual soldier. We are developing a mobile, low-cost motion analysis system using inertial measurement units (IMUs) and two custom force sensors that detect ground reaction forces and moments on both the unaffected limb and prosthesis. IMUs were tested on a robot programmed to simulate human gait motion. An algorithm which uses a kinematic model of the robot and an extended Kalman filter (EKF) was used to convert the rates and accelerations from the gyro and accelerometer into joint angles. Compared to encoder data from the robot, which was considered the ground truth in this experiment, the inertial measurement system had a RMSE of <1.0 degree. Collecting kinematic and kinetic data without the restrictions and expense of a motion analysis lab could help researchers, designers and prosthetists advance prosthesis technology and customize devices for individuals. Ultimately, these improvements will result in better prosthetic performance for the military population.

Mueller, John Kyle P [ORNL] [ORNL; Ericson, Milton Nance [ORNL] [ORNL; Farquhar, Ethan [ORNL] [ORNL; Lind, Randall F [ORNL] [ORNL; Evans III, Boyd Mccutchen [ORNL] [ORNL

2011-01-01T23:59:59.000Z

402

Environmental Cost Analysis System (ECAS) Status and Compliance Requirements for EM Consolidated Business Center Contracts - 13204  

SciTech Connect (OSTI)

The Department of Energy (DOE) Office of Environmental Management (EM) has developed a web-accessible database to collect actual cost data from completed EM projects to support cost estimating and analysis. This Environmental Cost Analysis System (ECAS) database was initially deployed in early 2009 containing the cost and parametric data from 77 decommissioning, restoration, and waste management projects completed under the Rocky Flats Closure Project. In subsequent years we have added many more projects to ECAS and now have a total of 280 projects from 8 major DOE sites. This data is now accessible to DOE users through a web-based reporting tool that allows users to tailor report outputs to meet their specific needs. We are using it as a principal resource supporting the EM Consolidated Business Center (EMCBC) and the EM Applied Cost Engineering (ACE) team cost estimating and analysis efforts across the country. The database has received Government Accountability Office review as supporting its recommended improvements in DOE's cost estimating process, as well as review from the DOE Office of Acquisition and Project Management (APM). Moving forward, the EMCBC has developed a Special Contract Requirement clause or 'H-Clause' to be included in all current and future EMCBC procurements identifying the process that contractors will follow to provide DOE their historical project data in a format compatible with ECAS. Changes to DOE O 413.3B implementation are also in progress to capture historical costs as part of the Critical Decision project closeout process. (authors)

Sanford, P.C. [Consultant, 11221 E. Cimmarron Dr., Englewood, CO 80111 (United States)] [Consultant, 11221 E. Cimmarron Dr., Englewood, CO 80111 (United States); Moe, M.A. [EMCBC Office of Cost Estimating and Analysis, United States Department of Energy, 250 E. 5th Street, Suite 500, Cincinnati, OH 45202 (United States)] [EMCBC Office of Cost Estimating and Analysis, United States Department of Energy, 250 E. 5th Street, Suite 500, Cincinnati, OH 45202 (United States); Hombach, W.G. [Team Analysis, Inc., 2 Cardinal Park Drive, Suite 105A, Leesburg, VA 20175 (United States)] [Team Analysis, Inc., 2 Cardinal Park Drive, Suite 105A, Leesburg, VA 20175 (United States); Urdangaray, R. [Project Performance Corporation, 1760 Old Meadow Road, McLean, VA 22102 (United States)] [Project Performance Corporation, 1760 Old Meadow Road, McLean, VA 22102 (United States)

2013-07-01T23:59:59.000Z

403

NGNP Data Management and Analysis System Analysis and Web Delivery Capabilities  

SciTech Connect (OSTI)

Projects for the Very High Temperature Reactor (VHTR) Technology Development Office provide data in support of Nuclear Regulatory Commission licensing of the very high temperature reactor. Fuel and materials to be used in the reactor are tested and characterized to quantify performance in high-temperature and high-fluence environments. The NGNP Data Management and Analysis System (NDMAS) at the Idaho National Laboratory has been established to ensure that VHTR data are (1) qualified for use, (2) stored in a readily accessible electronic form, and (3) analyzed to extract useful results. This document focuses on the third NDMAS objective. It describes capabilities for displaying the data in meaningful ways and for data analysis to identify useful relationships among the measured quantities. The capabilities are described from the perspective of NDMAS users, starting with those who just view experimental data and analytical results on the INL NDMAS web portal. Web display and delivery capabilities are described in detail. Also the current web pages that show Advanced Gas Reactor, Advanced Graphite Capsule, and High Temperature Materials test results are itemized. Capabilities available to NDMAS developers are more extensive, and are described using a second series of examples. Much of the data analysis efforts focus on understanding how thermocouple measurements relate to simulated temperatures and other experimental parameters. Statistical control charts and correlation monitoring provide an ongoing assessment of instrument accuracy. Data analysis capabilities are virtually unlimited for those who use the NDMAS web data download capabilities and the analysis software of their choice. Overall, the NDMAS provides convenient data analysis and web delivery capabilities for studying a very large and rapidly increasing database of well-documented, pedigreed data.

Cynthia D. Gentillon

2011-09-01T23:59:59.000Z

404

A Domain-Specific Safety Analysis for Digital Nuclear Plant Protection Systems  

E-Print Network [OSTI]

A Domain-Specific Safety Analysis for Digital Nuclear Plant Protection Systems Sanghyun Yoon tries to assure the systems' safety through performing various safety analysis techniques ­ FTA (Fault was KNICS(Korea Nuclear Instrumentation and Control System) RPS(Reactor Protection System). · Prototype

405

Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counterexamples  

E-Print Network [OSTI]

Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counterexamples H analysis (FMEA) is a technique to reason about possible system hazards that result from system or system component failures. Tradition- ally, FMEA does not take the probabilities with which these failures may

Leue, Stefan

406

Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counter Examples  

E-Print Network [OSTI]

Safety Analysis of an Airbag System using Probabilistic FMEA and Probabilistic Counter Examples Failure mode and effects analysis (FMEA) is a technique to reason about possible system hazards that result from system or system component failures. Traditionally, FMEA does not take the probabilities

Leue, Stefan

407

Notes 00. Introduction to the analysis of vibrations in mechanical systems.  

E-Print Network [OSTI]

Introduction to motion in mechanical systems. Definition of design, analysis, and testing. Steps in Modeling. Continuous and lumped parameter systems. Second Order Systems and differential equations of motion. Definitions of Free and Forced...

San Andres, Luis

2008-01-01T23:59:59.000Z

408

Analysis of coded OFDM system over frequency-selective fading channels  

E-Print Network [OSTI]

This thesis considers the analysis of system performance and resource allocation for a coded OFDM system over frequency selective fading channels. Due to the inseparable role taken by channel coding in a coded OFDM system, an information...

Zheng, Jun

2004-11-15T23:59:59.000Z

409

RELIABILITY ANALYSIS OF THE ELECTRICAL POWER DISTRIBUTION SYSTEM TO SELECTED PORTIONS OF THE NUCLEAR HVAC SYSTEM  

SciTech Connect (OSTI)

A design requirement probability of 0.01 or less in a 4-hour period ensures that the nuclear heating, ventilation, and air-conditioning (HVAC) system in the primary confinement areas of the Dry Transfer Facilities (DTFs) and Fuel Handling Facility (FHF) is working during a Category 1 drop event involving commercial spent nuclear fuel (CSNF) assemblies (BSC 2004a , Section 5.1.1.48). This corresponds to an hourly HVAC failure rate of 2.5E-3 per hour or less, which is contributed to by two dominant causes: equipment failure and loss of electrical power. Meeting this minimum threshold ensures that a Category 1 initiating event followed by the failure of HVAC is a Category 2 event sequence. The two causes for the loss of electrical power include the loss of offsite power and the loss of onsite power distribution. Thus, in order to meet the threshold requirement aforementioned, the failure rate of mechanical equipment, loss of offsite power, and loss of onsite power distribution must be less than or equal to 2.5E-3 per hour for the nuclear HVAC system in the primary confinement areas of the DTFs and FHF. The loss of offsite power occurs at a frequency of 1.1E-5 per hour (BSC 2004a, Section 5.1.1.48). The purpose of this analysis is to determine the probability of occurrence of the unavailability of the nuclear HVAC system in the primary confinement areas of the DTFs and FHF due to loss of electrical power. In addition, this analysis provides insights on the contribution to the unavailability of the HVAC system due to equipment failure. The scope of this analysis is limited to finding the frequency of loss of electrical power to the nuclear HVAC system in the primary confinement areas of the DTFs and FHF.

N. Ramirez

2004-12-16T23:59:59.000Z

410

RIVIER COLLEGE Spring 2006 BUS341A Information Systems Analysis Dr. Vladimir Riabov  

E-Print Network [OSTI]

. A continuing case study that spans all phases of the system development life cycle (SDLC) is used to promote development life cycle (SDLC): Systems Planning; Systems Analysis; System Design; System Implementation project is required. COURSE OBJECTIVES: · Define and describe in detail the five phases of the system

Riabov, Vladimir V.

411

RAM analysis helps cut turbine-generator systems costs  

SciTech Connect (OSTI)

Maintenance is effective when it improves equipment availability and reduces costs. Reduced costs stem from increased availability, which is the primary objective of this study. As a result, overall operating costs decrease. RAM analysis requires a logical approach to the problem through the use of techniques such as FMEA, FTA and goal trees. To illustrate the steps of this method, the authors used a simplified T-G system. This method is to rank critical components in terms of the severity of failure. On the basis of ranking, it is possible to assign the preventive maintenance tasks in order of priority. Other options are available. Examples are revised procedures, more detailed outage plans using PC-based programs and better spare parts management.

Cockerill, A.W. (Delta Tech. Systems, Cobourg, Ontario (CA)); Lavoie, M. (Ontario Hydro, Tiverton, Ontario (CA))

1990-07-01T23:59:59.000Z

412

Systems analysis of decontamination options for civilian vehicles.  

SciTech Connect (OSTI)

The objective of this project, which was supported by the Department of Homeland Security (DHS) Science and Technology Directorate (S&T) Chemical and Biological Division (CBD), was to investigate options for the decontamination of the exteriors and interiors of vehicles in the civilian setting in order to restore those vehicles to normal use following the release of a highly toxic chemical. The decontamination of vehicles is especially challenging because they often contain sensitive electronic equipment, multiple materials some of which strongly adsorb chemical agents, and in the case of aircraft, have very rigid material compatibility requirements (i.e., they cannot be exposed to reagents that may cause even minor corrosion). A systems analysis approach was taken examine existing and future civilian vehicle decontamination capabilities.

Foltz, Greg W.; Hoette, Trisha Marie

2010-11-01T23:59:59.000Z

413

Size-exclusion chromatography system for macromolecular interaction analysis  

DOE Patents [OSTI]

A low pressure, microcomputer controlled system employing high performance liquid chromatography (HPLC) allows for precise analysis of the interaction of two reversibly associating macromolecules such as proteins. Since a macromolecular complex migrates faster than its components during size-exclusion chromatography, the difference between the elution profile of a mixture of two macromolecules and the summation of the elution profiles of the two components provides a quantifiable indication of the degree of molecular interaction. This delta profile is used to qualitatively reveal the presence or absence of significant interaction or to rank the relative degree of interaction in comparing samples and, in combination with a computer simulation, is further used to quantify the magnitude of the interaction in an arrangement wherein a microcomputer is coupled to analytical instrumentation in a novel manner.

Stevens, Fred J. (Downers Grove, IL)

1988-01-01T23:59:59.000Z

414

SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 2. Battelle Columbus Laboratories system requirements definition and system analysis  

SciTech Connect (OSTI)

System specifications, design criteria, and representative weather data necessary for the system evolution and preliminary design are generated. A detailed analysis and evaluation of the commercial-sized controlled environment agriculture system coupled with a solar energy system was conducted. A simulation model to test the performance of the greenhouse is presented. (BCS)

Not Available

1981-01-01T23:59:59.000Z

415

Retrofit Analysis of HVAC Systems Using Artificial Neural Networks.  

E-Print Network [OSTI]

??This thesis aims to explore the benefits of retrofits applied to the compressor and burner in the AC and furnace respectively and how best to… (more)

Anand, Anish

2014-01-01T23:59:59.000Z

416

Integrated dynamic landscape analysis and modeling system (IDLAMS) : installation manual.  

SciTech Connect (OSTI)

The Integrated Dynamic Landscape Analysis and Modeling System (IDLAMS) is a prototype, integrated land management technology developed through a joint effort between Argonne National Laboratory (ANL) and the US Army Corps of Engineers Construction Engineering Research Laboratories (USACERL). Dr. Ronald C. Sundell, Ms. Pamela J. Sydelko, and Ms. Kimberly A. Majerus were the principal investigators (PIs) for this project. Dr. Zhian Li was the primary software developer. Dr. Jeffrey M. Keisler, Mr. Christopher M. Klaus, and Mr. Michael C. Vogt developed the decision analysis component of this project. It was developed with funding support from the Strategic Environmental Research and Development Program (SERDP), a land/environmental stewardship research program with participation from the US Department of Defense (DoD), the US Department of Energy (DOE), and the US Environmental Protection Agency (EPA). IDLAMS predicts land conditions (e.g., vegetation, wildlife habitats, and erosion status) by simulating changes in military land ecosystems for given training intensities and land management practices. It can be used by military land managers to help predict the future ecological condition for a given land use based on land management scenarios of various levels of training intensity. It also can be used as a tool to help land managers compare different land management practices and further determine a set of land management activities and prescriptions that best suit the needs of a specific military installation.

Li, Z.; Majerus, K. A.; Sundell, R. C.; Sydelko, P. J.; Vogt, M. C.

1999-02-24T23:59:59.000Z

417

Integrated dynamic landscape analysis and modeling system (IDLAMS) : programmer's manual.  

SciTech Connect (OSTI)

The Integrated Dynamic Landscape Analysis and Modeling System (IDLAMS) is a prototype, integrated land management technology developed through a joint effort between Argonne National Laboratory (ANL) and the US Army Corps of Engineers Construction Engineering Research Laboratories (USACERL). Dr. Ronald C. Sundell, Ms. Pamela J. Sydelko, and Ms. Kimberly A. Majerus were the principal investigators (PIs) for this project. Dr. Zhian Li was the primary software developer. Dr. Jeffrey M. Keisler, Mr. Christopher M. Klaus, and Mr. Michael C. Vogt developed the decision analysis component of this project. It was developed with funding support from the Strategic Environmental Research and Development Program (SERDP), a land/environmental stewardship research program with participation from the US Department of Defense (DoD), the US Department of Energy (DOE), and the US Environmental Protection Agency (EPA). IDLAMS predicts land conditions (e.g., vegetation, wildlife habitats, and erosion status) by simulating changes in military land ecosystems for given training intensities and land management practices. It can be used by military land managers to help predict the future ecological condition for a given land use based on land management scenarios of various levels of training intensity. It also can be used as a tool to help land managers compare different land management practices and further determine a set of land management activities and prescriptions that best suit the needs of a specific military installation.

Klaus, C. M.; Li, Z.; Majerus, K. A.; Sundell, R. C.; Sydelko, P. J.; Vogt, M. C.

1999-02-24T23:59:59.000Z

418

System Analysis of Nuclear-Assisted Syngas Production from Coal  

SciTech Connect (OSTI)

A system analysis has been performed to assess the efficiency and carbon utilization of a nuclear-assisted coal gasification process. The nuclear reactor is a high-temperature helium-cooled reactor that is used primarily to provide power for hydrogen production via hightemperature electrolysis. The supplemental hydrogen is mixed with the outlet stream from an oxygen-blown coal gasifier to produce a hydrogen-rich gas mixture, allowing most of the carbon dioxide to be converted into carbon monoxide, with enough excess hydrogen to produce a syngas product stream with a hydrogen/carbon monoxide molar ratio of about 2:1. Oxygen for the gasifier is also provided by the high-temperature electrolysis process. Results of the analysis predict 90.5% carbon utilization with a syngas production efficiency (defined as the ratio of the heating value of the produced syngas to the sum of the heating value of the coal plus the high-temperature reactor heat input) of 64.4% at a gasifier temperature of 1866 K for the high-moisture-content lignite coal considered. Usage of lower moisture coals such as bituminous can yield carbon utilization approaching 100% and 70% syngas production efficiency.

E. A. Harvego; M. G. McKellar; J. E. O'Brien

2009-07-01T23:59:59.000Z

419

Submission to the 2004 Workshop on Compilers and Tools for Constrained Embedded Systems Applying Scalable Interprocedural Pointer Analysis  

E-Print Network [OSTI]

by power and energy consumption, but wider instruction issue processors are often more power- and energy. This configurable SRAM pro- vides differentiation of data access time and port counts within a single on of previous works have addressed the power consumption of the memory subsystem, but many avoided

Hwu, Wen-mei W.

420

Analysis of a PML method applied to computation to resonances in open systems and acoustic scattering problems  

E-Print Network [OSTI]

Inthis section, we shallintroduce the interiorandglobalregularityresults ofuniformly elliptic operators of the form L(u) = ? Nsummationdisplay i,j=1 ? ?xi(a ij(x) ? ?xju)+ Nsummationdisplay i=1 bi(x) ??x i u+c(x)u, with Nsummationdisplay i,j=1 aij...(x)?i?j ??|?|2, for all x? ?, ? ?RN. (II.2) We will state the regularity results. See e.g., [27, 29] for detail. Theorem II.7. Let ? be an open subset of RN. Let u ? H1(?) be a weak solution of the equation Lu = f in ? where L is strictly elliptic...

Kim, Seungil

2010-01-14T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

ELIMINATING CONSERVATISM IN THE PIPING SYSTEM ANALYSIS PROCESS THROUGH APPLICATION OF A SUITE OF LOCALLY APPROPRIATE SEISMIC INPUT MOTIONS  

SciTech Connect (OSTI)

Seismic analysis is of great importance in the evaluation of nuclear systems due to the heavy influence such loading has on their designs. Current Department of Energy seismic analysis techniques for a nuclear safety-related piping system typically involve application of a single conservative seismic input applied to the entire system [1]. A significant portion of this conservatism comes from the need to address the overlapping uncertainties in the seismic input and in the building response that transmits that input motion to the piping system. The approach presented in this paper addresses these two sources of uncertainty through the application of a suite of 32 input motions whose collective performance addresses the total uncertainty while each individual motion represents a single variation of it. It represents an extension of the soil-structure interaction analysis methodology of SEI/ASCE 43-05 [2] from the structure to individual piping components. Because this approach is computationally intensive, automation and other measures have been developed to make such an analysis efficient. These measures are detailed in this paper.

Anthony L. Crawford; Robert E. Spears, Ph.D.; Mark J. Russell

2009-07-01T23:59:59.000Z

422

Reliability analysis of solar photovoltaic system using hourly mean solar radiation data  

SciTech Connect (OSTI)

This paper presents the hourly mean solar radiation and standard deviation as inputs to simulate the solar radiation over a year. Monte Carlo simulation (MCS) technique is applied and MATLAB program is developed for reliability analysis of small isolated power system using solar photovoltaic (SPV). This paper is distributed in two parts. Firstly various solar radiation prediction methods along with hourly mean solar radiation (HMSR) method are compared. The comparison is carried on the basis of predicted electrical power generation with actual power generated by SPV system. Estimation of solar photovoltaic power using HMSR method is close to the actual power generated by SPV system. The deviation in monsoon months is due to the cloud cover. In later part of the paper various reliability indices are obtained by HMSR method using MCS technique. Load model used is IEEE-RTS. Reliability indices, additional load hours (ALH) and additional power (AP) reduces exponentially with increase in load indicates that a SPV source will offset maximum fuel when all of its generated energy is utilized. Fuel saving calculation is also investigated. Case studies are presented for Sagardeep Island in West Bengal state of India. (author)

Moharil, Ravindra M. [Department of Electrical Engineering, Yeshwantrao Chavan College of Engineering, Nagpur, Maharashtra (India); Kulkarni, Prakash S. [Department of Electrical Engineering, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440011, Maharashtra (India)

2010-04-15T23:59:59.000Z

423

Energy consumption and comfort analysis for different low-energy cooling systems in a mild climate  

E-Print Network [OSTI]

1 Energy consumption and comfort analysis for different low- energy cooling systems in a mild. "Energy consumption and comfort analysis for different low-energy cooling systems in a mild climate the architectural and mechanical design of a building. Several researchers have demonstrated the analysis of low-energy

Chen, Qingyan "Yan"

424

Development of a natural Gas Systems Analysis Model (GSAM)  

SciTech Connect (OSTI)

Recent dramatic changes in natural gas markets have significant implications for the scope and direction of DOE`s upstream as well as downstream natural gas R&D. Open access transportation changes the way gas is bought and sold. The end of the gas deliverability surplus requires increased reserve development above recent levels. Increased gas demand for power generation and other new uses changes the overall demand picture in terms of volumes, locations and seasonality. DOE`s Natural Gas Strategic Plan requires that its R&D activities be evaluated for their ability to provide adequate supplies of reasonably priced gas. Potential R&D projects are to be evaluated using a full fuel cycle, benefit-cost approach to estimate likely market impact as well as technical success. To assure R&D projects are evaluated on a comparable basis, METC has undertaken the development of a comprehensive natural gas technology evaluation framework. Existing energy systems models lack the level of detail required to estimate the impact of specific upstream natural gas technologies across the known range of geological settings and likely market conditions. Gas Systems Analysis Model (GSAM) research during FY 1993 developed and implemented this comprehensive, consistent natural gas system evaluation framework. Rather than a isolated research activity, however, GSAM represents the integration of many prior and ongoing natural gas research efforts. When complete, it will incorporate the most current resource base description, reservoir modeling, technology characterization and other geologic and engineering aspects developed through recent METC and industry gas R&D programs.

Godec, M.; Haas, M.; Pepper, W.; Rose, J.

1993-12-31T23:59:59.000Z

425

Technical Analysis of Installed Micro-Combined Heat and Power Fuel-Cell System  

SciTech Connect (OSTI)

Combined heat and power fuel cell systems (CHP-FCSs) provide consistent electrical power and hot water with greater efficiency and lower emissions than alternative sources. These systems can be used either as baseload, grid-connected, or as off-the-grid power sources. This report presents a technical analysis of 5 kWe CHP-FCSs installed in different locations in the U.S. At some sites as many as five 5 kWe system is used to provide up to 25kWe of power. Systems in this power range are considered “micro”-CHP-FCS. To better assess performance of micro-CHP-FCS and understand their benefits, the U.S. Department of Energy worked with ClearEdge Power to install fifteen 5-kWe PBI high temperature PEM fuel cells (CE5 models) in the commercial markets of California and Oregon. Pacific Northwest National Laboratory evaluated these systems in terms of their economics, operations, and technical performance. These units were monitored from September 2011 until June 2013. During this time, about 190,000 hours of data were collected and more than 17 billion data points were analyzed. Beginning in July 2013, ten of these systems were gradually replaced with ungraded systems (M5 models) containing phosphoric acid fuel cell technology. The new units were monitored until June 2014 until they went offline because ClearEdge was bought by Doosan at the time and the new manufacturer did not continue to support data collection and maintenance of these units. During these two phases, data was collected at once per second and data analysis techniques were applied to understand behavior of these systems. The results of this analysis indicate that systems installed in the second phase of this demonstration performed much better in terms of availability, consistency in generation, and reliability. The average net electrical power output increased from 4.1 to 4.9 kWe, net heat recovery from 4.7 to 5.4 kWth, and system availability improved from 94% to 95%. The average net system electric efficiency, average net heat recovery efficiency, and overall net efficiency of the system increased respectively from 33% to 36%, from 38% to 41%, and from 71% to 76%. The temperature of water sent to sit however reduced by about 16% from 51?C to 43 ?C. This was a control strategy and the temperature can be controlled depending on building heat demands. More importantly, the number of shutdowns and maintenance events required to keep the systems running at the manufacturer’s rated performance specifications were substantially reduced by about 76% (for 8 to 10 units running over a one-year period). From July 2012 to June 2013, there were eight CE5 units in operation and a total of 134 scheduled and unscheduled shutdowns took place. From July 2013 to June 2014, between two to ten units were in operation and only 32 shutdowns were reported (all unscheduled). In summary, the number of shutdowns reduced from 10 shutdowns per month on average for eight CE5units to an average of 2.7 shutdowns per month for M5 units (between two to ten units).

Brooks, Kriston P.; Makhmalbaf, Atefe

2014-10-31T23:59:59.000Z

426

Reliability Analysis of the Trigger Synchronisation and Distribution System of the LHC Beam Dumping System  

E-Print Network [OSTI]

The Trigger Synchronisation and Distribution System (TSDS) is one of the core components of the LHC Beam Dumping System and an essential element to guarantee that operation with the beam is always safe. The most critical failure of the TSDS is the missed trigger and re-trigger of at least 2 MKD magnets. This report presents the modelling and analysis of the likelihood of the TSDS to develop such a failure scenario during operation. The analysis returns the Safety Integrity Level (SIL) for the TSDS, and the list of the most important contributors. Sensitivity analysis is performed with respect to the failure parameters and with respect to failure dependencies among components that are in the redundant sets. This includes a study of the common cause failures that are in the TSDS architecture. The results in terms of SIL for the TSDS will be compared to the SIL for the previous architecture which was operational until the Long Shutdown 1. Recommendations in order to obtain higher safety by design will also be gi...

Filippini, R

2013-01-01T23:59:59.000Z

427

Cost Analysis of Fuel Cell Systems for Transportation Compressed Hydrogen and PEM Fuel Cell System  

SciTech Connect (OSTI)

PEMFC technology for transportation must be competitive with internal combustion engine powertrains in a number of key metrics, including performance, life, reliability, and cost. Demonstration of PEMFC cost competitiveness has its own challenges because the technology has not been applied to high volume automotive markets. The key stack materials including membranes, electrodes, bipolar plates, and gas diffusion layers have not been produced in automotive volumes to the exacting quality requirements that will be needed for high stack yields and to the evolving property specifications of high performance automotive stacks. Additionally, balance-of-plant components for air, water, and thermal management are being developed to meet the unique requirements of fuel cell systems. To address the question of whether fuel cells will be cost competitive in automotive markets, the DOE has funded this project to assess the high volume production cost of PEM fuel cell systems. In this report a historical perspective of our efforts in assessment of PEMFC cost for DOE is provided along with a more in-depth assessment of the cost of compressed hydrogen storage is provided. Additionally, the hydrogen storage costs were incorporated into a system cost update for 2004. Assessment of cost involves understanding not only material and production costs, but also critical performance metrics, i.e., stack power density and associated catalyst loadings that scale the system components. We will discuss the factors influencing the selection of the system specification (i.e., efficiency, reformate versus direct hydrogen, and power output) and how these have evolved over time. The reported costs reflect internal estimates and feedback from component developers and the car companies. Uncertainty in the cost projection was addressed through sensitivity analyses.

Eric J. Carlson

2004-10-20T23:59:59.000Z

428

Cloud shading retrieval and assimilation in a satellite-model coupled mesoscale analysis system  

SciTech Connect (OSTI)

A retrieval-assimilation method has been developed as a quantitative means to exploit the information in satellite imagery regarding shading of the ground by clouds, as applied to mesoscale weather analysis. Cloud radiative parameters are retrieved from satellite visible image data and used, along with parameters computed by a numerical model, to control the model's computation of downward radiative fluxes at the ground. These fluxes influence the analysis of ground surface temperatures under clouds. The method is part of a satellite-model coupled four-dimensional analysis system that merges information from visible image data in cloudy areas with infrared sounder data in clear areas, where retrievals of surface temperatures and water vapor concentrations are assimilated. The substantial impact of shading on boundary-layer development and mesoscale circulations was demonstrated in simulations, and the value of assimilating shading retrievals was demonstrated with a case study and with a simulated analysis that included the effects of several potential sources of error. The case study was performed in the northwestern Texas area, where convective cloud development was influenced by the shading effects of a persistent region of stratiform cloud cover. Analyses that included shading retrieval assimilation had consistently smaller shelter-height temperature errors than analyses without shading retrievals. When clear-area surface temperature retrievals from sounder data were analyzed along with cloudy-area shading retrievals, the contrast in heating between the shaded and clear parts of the domain led to large variations in analyzed boundary-layer depths and had a modest impact on analyzed wind flow. The analyzed locations of upward vertical motion corresponded roughly to areas of convective cloud development observed in satellite imagery. 29 refs., 17 figs., 2 tabs.

Lipton, A.E. (Phillips Lab., Hanscom AFB, MA (United States))

1993-11-01T23:59:59.000Z

429

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

430

STOCHASTIC HYBRID SYSTEMS WITH RENEWAL TRANSITIONS: MOMENT ANALYSIS WITH APPLICATION TO  

E-Print Network [OSTI]

STOCHASTIC HYBRID SYSTEMS WITH RENEWAL TRANSITIONS: MOMENT ANALYSIS WITH APPLICATION TO NETWORKED motivated us to refer to these systems as Stochastic Hybrid Systems with Renewal Transitions. This class Stochastic Hybrid Systems (SHSs) for which the lengths of times that the system stays in each mode

Hespanha, João Pedro

431

Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited  

E-Print Network [OSTI]

Large System Analysis of Zero-Forcing Precoding in MISO Broadcast Channels with Limited Feedback in MISO broadcast channels with limited feed- back, transmit correlation and path loss. Our analysis

Paris-Sud XI, Université de

432

Well-to-Wheels Analysis of Advanced Fuel/Vehicle Systems - A...  

Energy Savers [EERE]

Well-to-Wheels Analysis of Advanced FuelVehicle Systems - A North American Study of Energy Use, Greenhouse Gas Emissions, and Criteria Pollutant Emissions Well-to-Wheels Analysis...

433

Multiscale analysis of nonlinear systems using computational homology  

SciTech Connect (OSTI)

This is a collaborative project between the principal investigators. However, as is to be expected, different PIs have greater focus on different aspects of the project. This report lists these major directions of research which were pursued during the funding period: (1) Computational Homology in Fluids - For the computational homology effort in thermal convection, the focus of the work during the first two years of the funding period included: (1) A clear demonstration that homology can sensitively detect the presence or absence of an important flow symmetry, (2) An investigation of homology as a probe for flow dynamics, and (3) The construction of a new convection apparatus for probing the effects of large-aspect-ratio. (2) Computational Homology in Cardiac Dynamics - We have initiated an effort to test the use of homology in characterizing data from both laboratory experiments and numerical simulations of arrhythmia in the heart. Recently, the use of high speed, high sensitivity digital imaging in conjunction with voltage sensitive fluorescent dyes has enabled researchers to visualize electrical activity on the surface of cardiac tissue, both in vitro and in vivo. (3) Magnetohydrodynamics - A new research direction is to use computational homology to analyze results of large scale simulations of 2D turbulence in the presence of magnetic fields. Such simulations are relevant to the dynamics of black hole accretion disks. The complex flow patterns from simulations exhibit strong qualitative changes as a function of magnetic field strength. Efforts to characterize the pattern changes using Fourier methods and wavelet analysis have been unsuccessful. (4) Granular Flow - two experts in the area of granular media are studying 2D model experiments of earthquake dynamics where the stress fields can be measured; these stress fields from complex patterns of 'force chains' that may be amenable to analysis using computational homology. (5) Microstructure Characterization - We extended our previous work on studying the time evolution of patterns associated with phase separation in conserved concentration fields. (6) Probabilistic Homology Validation - work on microstructure characterization is based on numerically studying the homology of certain sublevel sets of a function, whose evolution is described by deterministic or stochastic evolution equations. (7) Computational Homology and Dynamics - Topological methods can be used to rigorously describe the dynamics of nonlinear systems. We are approaching this problem from several perspectives and through a variety of systems. (8) Stress Networks in Polycrystals - we have characterized stress networks in polycrystals. This part of the project is aimed at developing homological metrics which can aid in distinguishing not only microstructures, but also derived mechanical response fields. (9) Microstructure-Controlled Drug Release - This part of the project is concerned with the development of topological metrics in the context of controlled drug delivery systems, such as drug-eluting stents. We are particularly interested in developing metrics which can be used to link the processing stage to the resulting microstructure, and ultimately to the achieved system response in terms of drug release profiles. (10) Microstructure of Fuel Cells - we have been using our computational homology software to analyze the topological structure of the void, metal and ceramic components of a Solid Oxide Fuel Cell.

Konstantin Mischaikow, Rutgers University /Georgia Institute of Technology, Michael Schatz, Georgia Institute of Technology, William Kalies, Florida Atlantic University, Thomas Wanner,George Mason University

2010-05-19T23:59:59.000Z

434

Multiscale analysis of nonlinear systems using computational homology  

SciTech Connect (OSTI)

This is a collaborative project between the principal investigators. However, as is to be expected, different PIs have greater focus on different aspects of the project. This report lists these major directions of research which were pursued during the funding period: (1) Computational Homology in Fluids - For the computational homology effort in thermal convection, the focus of the work during the first two years of the funding period included: (1) A clear demonstration that homology can sensitively detect the presence or absence of an important flow symmetry, (2) An investigation of homology as a probe for flow dynamics, and (3) The construction of a new convection apparatus for probing the effects of large-aspect-ratio. (2) Computational Homology in Cardiac Dynamics - We have initiated an effort to test the use of homology in characterizing data from both laboratory experiments and numerical simulations of arrhythmia in the heart. Recently, the use of high speed, high sensitivity digital imaging in conjunction with voltage sensitive fluorescent dyes has enabled researchers to visualize electrical activity on the surface of cardiac tissue, both in vitro and in vivo. (3) Magnetohydrodynamics - A new research direction is to use computational homology to analyze results of large scale simulations of 2D turbulence in the presence of magnetic fields. Such simulations are relevant to the dynamics of black hole accretion disks. The complex flow patterns from simulations exhibit strong qualitative changes as a function of magnetic field strength. Efforts to characterize the pattern changes using Fourier methods and wavelet analysis have been unsuccessful. (4) Granular Flow - two experts in the area of granular media are studying 2D model experiments of earthquake dynamics where the stress fields can be measured; these stress fields from complex patterns of 'force chains' that may be amenable to analysis using computational homology. (5) Microstructure Characterization - We extended our previous work on studying the time evolution of patterns associated with phase separation in conserved concentration fields. (6) Probabilistic Homology Validation - work on microstructure characterization is based on numerically studying the homology of certain sublevel sets of a function, whose evolution is described by deterministic or stochastic evolution equations. (7) Computational Homology and Dynamics - Topological methods can be used to rigorously describe the dynamics of nonlinear systems. We are approaching this problem from several perspectives and through a variety of systems. (8) Stress Networks in Polycrystals - we have characterized stress networks in polycrystals. This part of the project is aimed at developing homological metrics which can aid in distinguishing not only microstructures, but also derived mechanical response fields. (9) Microstructure-Controlled Drug Release - This part of the project is concerned with the development of topological metrics in the context of controlled drug delivery systems, such as drug-eluting stents. We are particularly interested in developing metrics which can be used to link the processing stage to the resulting microstructure, and ultimately to the achieved system response in terms of drug release profiles. (10) Microstructure of Fuel Cells - we have been using our computational homology software to analyze the topological structure of the void, metal and ceramic components of a Solid Oxide Fuel Cell.

Konstantin Mischaikow; Michael Schatz; William Kalies; Thomas Wanner

2010-05-24T23:59:59.000Z

435

Wind energy Computerized Maintenance Management System (CMMS) : data collection recommendations for reliability analysis.  

SciTech Connect (OSTI)

This report addresses the general data requirements for reliability analysis of fielded wind turbines and other wind plant equipment. The report provides a list of the data needed to support reliability and availability analysis, and gives specific recommendations for a Computerized Maintenance Management System (CMMS) to support automated analysis. This data collection recommendations report was written by Sandia National Laboratories to address the general data requirements for reliability analysis of fielded wind turbines. This report is intended to help the reader develop a basic understanding of what data are needed from a Computerized Maintenance Management System (CMMS) and other data systems, for reliability analysis. The report provides: (1) a list of the data needed to support reliability and availability analysis; and (2) specific recommendations for a CMMS to support automated analysis. Though written for reliability analysis of wind turbines, much of the information is applicable to a wider variety of equipment and a wider variety of analysis and reporting needs.

Peters, Valerie A.; Ogilvie, Alistair; Veers, Paul S.

2009-09-01T23:59:59.000Z

436

SARA (System ARchitects Apprentice): Modeling, analysis, and simulation support for design of concurrent systems  

SciTech Connect (OSTI)

An environment to support designers in the modeling, analysis and simulation of concurrent systems is described. It is shown how a fully nested structure model supports multilevel design and focuses attention on the interfaces between the modules which serve to encapsulate behavior. Using simple examples the paper indicates how a formal graph model can be used to model behavior in three domains: control flow, data flow, and interpretation. The effectiveness of the explicity environment model in SARA is discussed and the capability to analyze correctness and evaluate performance of a system model are demonstrated. A description of the integral help designed into SARA shows how the designer can be offered consistent use of any new tool introduced to support the design process.

Estrin, G.; Fenchel, R.S.; Razouk, R.R.; Vernon, M.K.

1986-02-01T23:59:59.000Z

437

Reducing the Carbon Footprint of Commercial Refrigeration Systems Using Life Cycle Climate Performance Analysis: From System Design to Refrigerant Options  

SciTech Connect (OSTI)

In this paper, Life Cycle Climate Performance (LCCP) analysis is used to estimate lifetime direct and indirect carbon dioxide equivalent gas emissions of various refrigerant options and commercial refrigeration system designs, including the multiplex DX system with various hydrofluorocarbon (HFC) refrigerants, the HFC/R744 cascade system incorporating a medium-temperature R744 secondary loop, and the transcritical R744 booster system. The results of the LCCP analysis are presented, including the direct and indirect carbon dioxide equivalent emissions for each refrigeration system and refrigerant option. Based on the results of the LCCP analysis, recommendations are given for the selection of low GWP replacement refrigerants for use in existing commercial refrigeration systems, as well as for the selection of commercial refrigeration system designs with low carbon dioxide equivalent emissions, suitable for new installations.

Fricke, Brian A [ORNL] [ORNL; Abdelaziz, Omar [ORNL] [ORNL; Vineyard, Edward Allan [ORNL] [ORNL

2013-01-01T23:59:59.000Z

438

Systems Modeling and Analysis Industrial Engineers are interested in optimizing the design and operation of complex systems  

E-Print Network [OSTI]

Systems Modeling and Analysis Industrial Engineers are interested in optimizing the design and operation of complex systems composed of people and machines using information, materials and energy to produce goods and services. Analyzing such systems with information-driven models is an essential step

Dyer, Bill

439

Solar Electric Generating System II finite element analysis  

SciTech Connect (OSTI)

On June 2, 1992, Landers` earthquake struck the Solar Electric Generating System II, located in Daggett, California. The 30 megawatt power station, operated by the Daggett Leasing Corporation (DLC), suffered substantial damage due to structural failures in the solar farm. These failures consisted of the separation of sliding joints supporting a distribution of parabolic glass mirrors. At separation, the mirrors fell to the ground and broke. It was the desire of the DLC and the Solar Thermal Design Assistance Center (STDAC) of Sandia National Laboratories (SNL) and to redesign these joints so that, in the event of future quakes, costly breakage will be avoided. To accomplish this task, drawings of collector components were developed by the STDAC, from which a detailed finite element computer model of a solar collector was produced. This nonlinear dynamic model, which consisted of over 8,560 degrees of freedom, underwent model reduction to form a low order nonlinear dynamic model containing only 40 degrees of freedom. This model was then used as a design tool to estimate joint dynamics. Using this design tool, joint configurations were modified, and an acceptable joint redesign determined. The results of this analysis showed that the implementation of metal stops welded to support shafts for the purpose of preventing joint separation is a suitable joint redesign. Moreover, it was found that, for quakes of Landers` magnitude, mirror breakage due to enhanced vibration in the trough assembly is unlikely.

Dohner, J.L.; Anderson, J.R.

1994-04-01T23:59:59.000Z

440

Pressure Systems Stored-Energy Threshold Risk Analysis  

SciTech Connect (OSTI)

Federal Regulation 10 CFR 851, which became effective February 2007, brought to light potential weaknesses regarding the Pressure Safety Program at the Pacific Northwest National Laboratory (PNNL). The definition of a pressure system in 10 CFR 851 does not contain a limit based upon pressure or any other criteria. Therefore, the need for a method to determine an appropriate risk-based hazard level for pressure safety was identified. The Laboratory has historically used a stored energy of 1000 lbf-ft to define a pressure hazard; however, an analytical basis for this value had not been documented. This document establishes the technical basis by evaluating the use of stored energy as an appropriate criterion to establish a pressure hazard, exploring a suitable risk threshold for pressure hazards, and reviewing the methods used to determine stored energy. The literature review and technical analysis concludes the use of stored energy as a method for determining a potential risk, the 1000 lbf-ft threshold, and the methods used by PNNL to calculate stored energy are all appropriate. Recommendations for further program improvements are also discussed

Paulsen, Samuel S.

2009-08-25T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Sensitivity analysis of synergistic collaborative scenarios towards sustainable nuclear energy systems  

SciTech Connect (OSTI)

The paper presents results of the study on the role of collaboration among countries towards sustainable global nuclear energy systems. The study explores various market shares for nuclear fuel cycle services, possible scale of collaboration among countries and assesses benefits and issues relevant for collaboration between suppliers and users of nuclear fuel cycle services. The approach used in the study is based on a heterogeneous world model with grouping of the non-personified nuclear energy countries according to different nuclear fuel cycle policies. The methodology applied in the analysis allocates a fraction of future global nuclear energy generation to each of such country-groups as a function of time. The sensitivity studies performed show the impacts of the group shares on the scope of collaboration among countries and on the resulting possible reactor mix and nuclear fuel cycle infrastructure versus time. The study quantitatively demonstrates that the synergistic approach to nuclear fuel cycle has a significant potential for offering a win-win collaborative strategy to both, technology holders and technology users on their joint way to future sustainable nuclear energy systems. The study also highlights possible issues on such a collaborative way. (authors)

Fesenko, G.; Kuznetsov, V. [IAEA, Wagramer Strasse 5, P.O. Box 100, A-1400, Vienna (Austria); Poplavskaya, E. [Institute of Physics and Power Engineering, Obninsk (Russian Federation)

2013-07-01T23:59:59.000Z

442

Environmental Systems Research and Analysis FY 2000 Annual Report  

SciTech Connect (OSTI)

The Environmental Systems Research (ESR) Program, a part of the Environmental Systems Research and Analysis (ESRA) Program, was implemented to enhance and augment the technical capabilities of the INEEL. Strengthening the Technical capabilities of the INEEL will provide the technical base to serve effectively as the Environmental Management Laboratory for the Office of Environmental Management (EM). This is a progress report for the third year of the ESR Program (FY 2000). A report of activities is presented for the five ESR research investment areas: (1) Transport Aspects of Selective Mass Transport Agents, (2) Chemistry of Environmental Surfaces, (3) Materials Dynamics, (4) Characterization Science, and (5) Computational Simulation of Mechanical and Chemical Systems. In addition to the five technical areas, the report describes activities in the Science and Technology Foundations element of the program, e.g., interfaces between ESR and the EM Science Program (EMSP) and the EM Focus Areas. The five research areas are subdivided into 18 research projects. FY 2000 research in these 18 projects has resulted in more than 50 technical papers that are in print, in press, in review, or in preparation. Additionally, more than 100 presentations were made at professional society meetings nationally and internationally. Work supported by this program was in part responsible for one of our researchers, Dr. Mason Harrup, receiving the Department of Energy’s “Bright Light” and “Energy at 23” awards. Significant accomplishments were achieved. Non-Destructive Assay hardware and software was deployed at the INEEL, enhancing the quality and efficiency of TRU waste characterization for shipment. The advanced tensiometer has been employed at numerous sites around the complex to determine hydrologic gradients in variably saturated vadose zones. An ion trap, secondary ion mass spectrometer (IT-SIMS) was designed and fabricated to deploy at the INEEL site to measure the chemical speciation of radionuclides and toxic metals on the surfaces of environmentally significant minerals. The FY 2001 program will have a significantly different structure and research content. This report presents the final summary of projects coming to an end in FY 2000 and is a bridge to the FY 2001 program.

David L. Miller; Castle, Peter Myer; Steven J. Piet

2001-01-01T23:59:59.000Z

443

Design and analysis of MIMO systems with practical channel state information assumptions  

E-Print Network [OSTI]

Comparison with Optimal MISO CSI-Quantizers . . . . . . 9655 Capacity Analysis of MISO Systems with Finite-Rate CSIAnalysis of MISO CSI Quantizers with Mismatched Codebooks

Zheng, Jun

2006-01-01T23:59:59.000Z

444

analysis system semi-annual: Topics by E-print Network  

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

19 Semi-Annual Financial Report Grant Carver, Jeffrey C. 4 Ris 12-06-07 Energy Technology Systems Analysis Programme (ETSAP) Multidisciplinary Databases and...

445

The dynamics of 'systems building' : An analysis of process mutations  

E-Print Network [OSTI]

This thesis investigates systems building in architecture. As the systems approach is an organized process for problem solving, the understanding of structural and functional relationships is essential. As systems building ...

Paul, Rathindra Jurg

1984-01-01T23:59:59.000Z

446

Comparative analysis of aviation safety information feedback systems  

E-Print Network [OSTI]

In the aviation system, there are several feedback systems to prevent an accident. First of all, the accident and serious incident reporting and investigation system is established by the Chicago Convention. In general, ...

Funahashi, Yoshifuru

2010-01-01T23:59:59.000Z

447

Analysis of the E0 Encryption System Scott R. Fluhrer1  

E-Print Network [OSTI]

Analysis of the E0 Encryption System Scott R. Fluhrer1 and Stefan Lucks2 1 Cisco Systems, Inc. 170 once, and their output bits are exclusive-or'ed together with one bit of output from the finite state

Lucks, Stefan

448

Analysis of the Diagnostic Methods of the Performance Failure of Heating and Air Conditioning Systems  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Co ntrol Systems for Energy Efficiency and Comfort, Vol. V-5-2 Analysis of the Diagnostic Methods of the Performance Failure of Heating and Air Conditioning Systems Lianyou LI Zhihong ZHANG Yong...

Li, L.; Zhang, Z.; Sun, Y.; Li, D.; Xie, H.

2006-01-01T23:59:59.000Z

449

Process Waste Heat Recovery in the Food Industry - A System Analysis  

E-Print Network [OSTI]

An analysis of an industrial waste heat recovery system concept is discussed. For example purposes, a food processing plant operating an ammonia refrigeration system for storage and blast freezing is considered. Heat is withdrawn from...

Lundberg, W. L.; Mutone, G. A.

1983-01-01T23:59:59.000Z

450

Joint-Frequency Bins versus Conventional Bin Weather Data in Analysis of HVAC System Operation  

E-Print Network [OSTI]

this study the use of joint-frequency bins has relative added value to the analysis of HVAC system operation depending on whether the system is dominated by ventilation loads....

Jones, A.; Baltazar, J. C.; Claridge, D. E.

451

Planning, Execution, and Analysis of the Meridian UAS Flight Test Program Including System and Parameter Identification  

E-Print Network [OSTI]

The purpose of this Master Thesis is to present the flight test procedures, planning, and analysis including system identification, parameter identification, and drag calculations of the Meridian UAS. The system identification is performed using...

Tom, Jonathan

2010-04-27T23:59:59.000Z

452

Analysis of simultaneous cooling and heating in supermarket refrigeration systems.  

E-Print Network [OSTI]

?? In this master thesis project, conventional supermarket refrigeration systems using R404A are compared with refrigeration system solutions using natural refrigerants such as carbon dioxide… (more)

Marigny, Johan

2011-01-01T23:59:59.000Z

453

Renormalization group analysis of multi-band many-electron systems at half-filling  

E-Print Network [OSTI]

Renormalization group analysis for multi-band many-electron systems at half-filling at positive temperature is presented. The analysis includes the Matsubara ultra-violet integration and the infrared integration around the zero set of the dispersion relation. The multi-scale integration schemes are implemented in a finite-dimensional Grassmann algebra indexed by discrete position-time variables. In order that the multi-scale integrations are justified inductively, various scale-dependent estimates on Grassmann polynomials are established. We apply these theories in practice to prove that for the half-filled Hubbard model with nearest-neighbor hopping on a square lattice the infinite-volume, zero-temperature limit of the free energy density exists as an analytic function of the coupling constant in a neighborhood of the origin if the system contains the magnetic flux pi (mod 2 pi) per plaquette and 0 (mod 2 pi) through the large circles around the periodic lattice. Combined with Lieb's result on the flux phase problem ([Lieb, E. H., Phys. Rev. Lett. 73 (1994), 2158]), this theorem implies that the minimum free energy density of the flux phase problem converges to an analytic function of the coupling constant in the infinite-volume, zero-temperature limit. The proof of the theorem is based on a four-band formulation of the model Hamiltonian and an extension of Giuliani-Mastropietro's renormalization designed for the half-filled Hubbard model on the honeycomb lattice ([Giuliani, A. and V. Mastropietro, Commun. Math. Phys. 293 (2010), 301-346]).

Yohei Kashima

2014-08-19T23:59:59.000Z

454

INTELLIGENT COMPUTING SYSTEM FOR RESERVOIR ANALYSIS AND RISK ASSESSMENT OF THE RED RIVER FORMATION  

SciTech Connect (OSTI)

Integrated software has been written that comprises the tool kit for the Intelligent Computing System (ICS). The software tools in ICS have been developed for characterization of reservoir properties and evaluation of hydrocarbon potential using a combination of inter-disciplinary data sources such as geophysical, geologic and engineering variables. The ICS tools provide a means for logical and consistent reservoir characterization and oil reserve estimates. The tools can be broadly characterized as (1) clustering tools, (2) neural solvers, (3) multiple-linear regression, (4) entrapment-potential calculator and (5) file utility tools. ICS tools are extremely flexible in their approach and use, and applicable to most geologic settings. The tools are primarily designed to correlate relationships between seismic information and engineering and geologic data obtained from wells, and to convert or translate seismic information into engineering and geologic terms or units. It is also possible to apply ICS in a simple framework that may include reservoir characterization using only engineering, seismic, or geologic data in the analysis. ICS tools were developed and tested using geophysical, geologic and engineering data obtained from an exploitation and development project involving the Red River Formation in Bowman County, North Dakota and Harding County, South Dakota. Data obtained from 3D seismic surveys, and 2D seismic lines encompassing nine prospective field areas were used in the analysis. The geologic setting of the Red River Formation in Bowman and Harding counties is that of a shallow-shelf, carbonate system. Present-day depth of the Red River formation is approximately 8000 to 10,000 ft below ground surface. This report summarizes production results from well demonstration activity, results of reservoir characterization of the Red River Formation at demonstration sites, descriptions of ICS tools and strategies for their application.

Mark A. Sippel; William C. Carrigan; Kenneth D. Luff; Lyn Canter

2003-11-12T23:59:59.000Z

455

Engineering systems analysis of pressurized fluidized-bed-combustion power systems  

SciTech Connect (OSTI)

This effort was conducted to provde supporting data for the research and development program on pressurized fluidized bed combustor (PFBC) systems being continued under the auspices of the Office of Coal Utilization of DOE. This report deals with the first phase of the effort, designated Task 1, which was scoped to be a somewhat broad review of PFBC technology and an analysis to determine its potential and sensitivity to key development needs. Background information pertaining to the application of PFBC to the market for coal-fired technology is included. The status of development is reviewed and the deficiencies in data are identified. Responses to a survey of PFBC developers are reviewed with emphasis on the high risk areas of the PFBC concept. Some of these problems are: uncertainty of life of gas turbine components; lack of demonstration of load following; and hot solids handling. Some high risk areas, such as the gas cleanup or gas turbine systems, can be relieved by reducing the severity of design conditions such as the turbine inlet temperature. Alternate turbine designs or plant configurations are also possible solutions. Analyses were performed to determine whether the advantages held by PFBC systems in cost, efficiency, and emissions would be nullified by measures taken to reduce risk. In general, the results showed that the attractive features of the PFBC could be preserved.

Graves, R.L.; Griffin, F.P.; Lackey, M.E.

1982-04-01T23:59:59.000Z

456

Information Systems Analysis and Design Course Syllabus for Fall 2007  

E-Print Network [OSTI]

concepts and principles ofthe systems development life cycle (SDLC); · use the techniques and tools ofthe

Almor, Amit

457

Systems Analysis of a Compact Next Step Burning Plasma Experiment  

SciTech Connect (OSTI)

A new burning plasma systems code (BPSC) has been developed for analysis of a next step compact burning plasma experiment with copper-alloy magnet technology. We consider two classes of configurations: Type A, with the toroidal field (TF) coils and ohmic heating (OH) coils unlinked, and Type B, with the TF and OH coils linked. We obtain curves of the minimizing major radius as a function of aspect ratio R(A) for each configuration type for typical parameters. These curves represent, to first order, cost minimizing curves, assuming that device cost is a function of major radius. The Type B curves always lie below the Type A curves for the same physics parameters, indicating that they lead to a more compact design. This follows from that fact that a high fraction of the inner region, r < R-a, contains electrical conductor material. However, the fact that the Type A OH and TF magnets are not linked presents fewer engineering challenges and should lead to a more reliable design. Both the Type A and Type B curves have a minimum in major radius R at a minimizing aspect ratio A typically above 2.8 and at high values of magnetic field B above 10 T. The minimizing A occurs at larger values for longer pulse and higher performance devices. The larger A and higher B design points also have the feature that the ratio of the discharge time to the current redistribution time is largest so that steady-state operation can be more realistically prototyped. A sensitivity study is presented for the baseline Type A configuration showing the dependence of the results on the parameters held fixed for the minimization study.

S.C. Jardin; C.E. Kessel; D. Meade; C. Neumeyer

2002-02-06T23:59:59.000Z

458

theoretical and applied fracture  

E-Print Network [OSTI]

theoretical and applied fracture mechanics ELSEVIER Theoretical and Applied Fracture Mechanics 00 and Applied Fracture Mechanics 00 (1995) 000-000 Recently, some European countries developed defect specific. A suitable probabilistic fracture mechanic

Cizelj, Leon

459

A system-of-systems framework of Nuclear Power Plant Probabilistic Seismic Hazard Analysis by Fault Tree analysis and Monte Carlo simulation  

E-Print Network [OSTI]

A system-of-systems framework of Nuclear Power Plant Probabilistic Seismic Hazard Analysis by Fault and the Energetic Challenge, European Foundation for New Energy - Electricité de France, at �cole Centrale Paris - Supelec, France enrico.zio@ecp.fr, enrico.zio@supelec.fr b Department of Energy, Politecnico di Milano

Boyer, Edmond

460

Parallel and Statistical Analysis and Modeling of Nanometer VLSI Systems  

E-Print Network [OSTI]

layers. Advanced cooling techniques such as integratedtraditional fan-based cooling techniques are not sufficientcooling problems. Fast and accurate thermal analysis techniques

Liu, Xue-Xin

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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

Cost-Benefit Analysis of Smart Grid Technologies Through System...  

Open Energy Info (EERE)

Simulations Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Spain Installed Wind Capacity Website Focus Area: Renewable Energy Topics: Market Analysis Website:...

462

Applied Computer Science  

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

Computing CCS Division Applied Computer Science Applied Computer Science Innovative co-design of applications, algorithms, and architectures in order to enable scientific...

463

Deadlock Analysis for a FaultTolerant System  

E-Print Network [OSTI]

. The approach is based on CSP specifications and the model­checking tool FDR. The task is split into manageable subtasks by applying an abstraction technique for restricting the specifications to the essential developed for the application. 1 Introduction One of the essential obstacles for the acceptance of formal

Peleska, Jan - Fachbereich 3

464

Process-Aware Information Systems: Design, Enactment, and Analysis  

E-Print Network [OSTI]

of the different types of PAISs. PAISs play an important role in the Business Process Management (BPM). There exist many definitions of BPM. Here we will use the following defini- tion: "Business process management (BPM sciences and applies this to operational business processes". BPM can be seen as an extension of Workflow

van der Aalst, Wil

465

Multi Criteria Analysis for bioenergy systems assessments Thomas Buchholz a,, Ewald Rametsteiner b  

E-Print Network [OSTI]

Multi Criteria Analysis for bioenergy systems assessments Thomas Buchholz a,Ã?, Ewald Rametsteiner b Available online 11 November 2008 Keywords: Multi Criteria Analysis Bioenergy Sustainability a b s t r a c t Sustainable bioenergy systems are, by definition, embedded in social, economic, and environmental contexts

Vermont, University of

466

Microfluidic systems and methods for transport and lysis of cells and analysis of cell lysate  

DOE Patents [OSTI]

Microfluidic systems and methods are disclosed which are adapted to transport and lyse cellular components of a test sample for analysis. The disclosed microfluidic systems and methods, which employ an electric field to rupture the cell membrane, cause unusually rapid lysis, thereby minimizing continued cellular activity and resulting in greater accuracy of analysis of cell processes.

Culbertson, Christopher T [Oak Ridge, TN; Jacobson, Stephen C [Knoxville, TN; McClain, Maxine A [Knoxville, TN; Ramsey, J Michael [Knoxville, TN

2008-09-02T23:59:59.000Z

467

Automated Analysis of Fault-Tolerance in Distributed Systems Scott D. Stoller y  

E-Print Network [OSTI]

Automated Analysis of Fault-Tolerance in Distributed Systems #3; Scott D. Stoller y Computer satisfy in speci#12;ed failure scenarios. Our analysis method is to compute, for each failure scenario for which the user speci#12;ed a fault-tolerance requirement, an MFG representing the system's communication

Schneider, Fred B.

468

Roadmap: Digital Sciences Digital Systems Analysis Bachelor of Science [DS-BS-DS-DSA  

E-Print Network [OSTI]

Roadmap: Digital Sciences ­ Digital Systems Analysis ­ Bachelor of Science [DS-BS-DS-DSA] School of Digital Sciences Catalog Year: 2012-2013 Page 1 of 3 | Last Updated: 16-Apr-12/LNHD This roadmap (lower or upper division) 6 #12;Roadmap: Digital Sciences ­ Digital Systems Analysis ­ Bachelor

Sheridan, Scott

469

Controllability analysis of severe slugging in well-pipeline-riser systems  

E-Print Network [OSTI]

Controllability analysis of severe slugging in well-pipeline-riser systems Esmaeil Jahanshahi analysis was performed on a pipeline-rise system using a 4-state model for comparing the results to the previous works. Next, using a 6-state model, the results were extended to a more general well-pipeline

Skogestad, Sigurd

470

Boston University, College of Engineering ENG ME 510: Production Systems Analysis  

E-Print Network [OSTI]

Boston University, College of Engineering ENG ME 510: Production Systems Analysis Course;Boston University, College of Engineering ENG ME 510: Production Systems Analysis Course Topics: Fall/Thursday 12:30-1:30 pm (email me to confirm) and by appointment Textbook: Steven Nahmias, Production

Lin, Xi

471

Experimental Analysis of Task-based Energy Consumption in Cloud Computing Systems  

E-Print Network [OSTI]

computing, green cloud, energy consumption, performance analysis, energy efficiency. 1. INTRODUCTION Cloud in green cloud computing systems [4]. Many efforts have been made to improve the energy efficiency of cloudExperimental Analysis of Task-based Energy Consumption in Cloud Computing Systems Feifei Chen, John

Schneider, Jean-Guy

472

Integrated Chemical Complex and Cogeneration Analysis System: Energy Conservation and Greenhouse Gas Management Solutions  

E-Print Network [OSTI]

19f Integrated Chemical Complex and Cogeneration Analysis System: Energy Conservation and Cogeneration Analysis System is an advanced technology for energy conservation and pollution prevention, Beaumont, TX 77710, hopperjr@hal.lamar.edu, yawscl@hal.lamar.edu Key words; Energy Conservation, Greenhouse

Pike, Ralph W.

473

Ris 12-06-07 Energy Technology Systems Analysis Programme (ETSAP)  

E-Print Network [OSTI]

Risø 12-06-07 1 Energy Technology Systems Analysis Programme (ETSAP) ETSAP Semi-Annual Workshop, Stanford jointly with the International Energy Workshop 2007 Pre-Conference meeting, 12 June 2007 (Extract) Poul Erik Grohnheit Risø National Laboratory, Systems Analysis Department Roskilde, Denmark #12;Risø 12

474

Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks  

E-Print Network [OSTI]

Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong Xiaofan or to redistribute to lists, requires prior specific permission. #12;Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong, Xiaofan Jiang and David Culler EECS Department, University

California at Berkeley, University of

475

Business Systems Analysis With ever increasing amounts of data, organizations are identifying  

E-Print Network [OSTI]

Business Systems Analysis With ever increasing amounts of data, organizations are identifying the importance of Business Intelligence and Analytics (BIA) for decision-making. Gartner recognized BIA as one of 140,000-190,000 analytics workers. Both the Business Systems Analysis (BSAN) major, minor and emphasis

Miles, Will

476

Fuel Cell Systems AnalysisFuel Cell Systems Analysis R. K. Ahluwalia, X. Wang, and R. Kumar  

E-Print Network [OSTI]

at Tamb = 42 o C. 0 to 60 mph in 10 s with battery assist. Defines the size of energy storage system. 50. H2 Purification/CO Cleanup M. Fuel Processor System Integration and Efficiency R. Thermal and Water systems for hybrid vehicles. Build models for components and systems. Support setting of H2 storage

477

Application of System-Theoretic Process Analysis to Engineered Safety Features-Component Control System  

E-Print Network [OSTI]

(FTA) or failure mode and effects analysis (FMEA), have been extensively used for decades. However Modes and Effects analysis (FMEA), Hazards and Operability Analysis (HAZOP), etc., have been proposed

478

Transmission System Performance Analysis for High-Penetration Photovoltaics  

SciTech Connect (OSTI)

This study is an assessment of the potential impact of high levels of penetration of photovoltaic (PV) generation on transmission systems. The effort used stability simulations of a transmission system with different levels of PV generation and load.

Achilles, S.; Schramm, S.; Bebic, J.

2008-02-01T23:59:59.000Z

479

Analysis of Power System Dynamics Subject to Stochastic Power Injections  

E-Print Network [OSTI]

to the computation of long-term power system state statistics; and to short-term probabilistic dynamic performance/reliability of renewable re- sources such as wind energy conversion systems (WECS) and photovoltaic energy conversion

DeVille, Lee

480

Distributed optimization and market analysis of networked systems  

E-Print Network [OSTI]

In the interconnected world of today, large-scale multi-agent networked systems are ubiquitous. This thesis studies two classes of multi-agent systems, where each agent has local information and a local objective function. ...

Wei, Ermin

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "applied systems 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.


481

Compositional construction and analysis of Petri net systems   

E-Print Network [OSTI]

Most Petri net (PN) based modelling formalisms represent the system modelled as a flat net. This may not clearly reflect the elements that participate in the system and the way they communicate or interact. It can also ...

Rojas, Isabel C.

482

Surveillance Analysis Computer System (SACS) software design document (SDD)  

SciTech Connect (OSTI)

This document contains the Software Design Description for Phase II of the SACS project, and Impact Level 3Q system

Glasscock, J.A.

1995-09-01T23:59:59.000Z

483

California's Electricity System of the Future: Scenario Analysis in Support  

E-Print Network [OSTI]

in this report. #12;Preface The U.S. Electricity Grid Today The U.S. electric power system is in the midst, and technologies to protect and enhance the reliability of the U.S. electric power system and functioning Foundation's Power Systems Engineering Research Center, and Sandia National Laboratories. #12;LBNL-52047

484

Combining Methods for the Livelock Analysis of a FaultTolerant System  

E-Print Network [OSTI]

­Benz Aerospace for the International Space Station ISS and focussd essentially on deadlock and livelock analysis. The approach is based on CSP specifications and the model­checking tool FDR. The tasks are split into manageable subtasks by applying abstraction techniques for restricting the specifications to the essential

Peleska, Jan - Fachbereich 3

485

Design and Analysis of a Region-Wide Remotely Controllable Electrical Lock-Out System  

SciTech Connect (OSTI)

Electric utilities have a main responsibility to protect the lives and safety of their workers when they are working on low-, medium-, and high-voltage power lines and distribution circuits. With the anticipated widespread deployment of smart grids, a secure and highly reliable means of maintaining isolation of customer-owned distributed generation (DG) from the affected distribution circuits during maintenance is necessary to provide a fully de-energized work area, ensure utility personnel safety, and prevent hazards that can lead to accidents such as accidental electrocution from unanticipated power sources. Some circuits are serviced while energized (live line work) while others are de-energized for maintenance. For servicing de-energized circuits and equipment, lock-out tag-out (LOTO) programs provide a verifiable procedure for ensuring that circuit breakers are locked in the off state and tagged to indicate that status to operational personnel so that the lines will be checked for voltage to verify they are de-energized. The de-energized area is isolated from any energized sources, which traditionally are the substations. This procedure works well when all power sources and their interconnections are known armed with this knowledge, utility personnel can determine the appropriate circuits to de-energize for isolating the target line or equipment. However, with customer-owned DG tied into the grid, the risk of inadvertently reenergizing a circuit increases because circuit connections may not be adequately documented and are not under the direct control of the local utility. Thus, the active device may not be properly de-energized or isolated from the work area. Further, a remote means of de-energizing and locking out energized devices provides an opportunity for greatly reduced safety risk to utility personnel compared to manual operations. In this paper, we present a remotely controllable LOTO system that allows individual workers to determine the configuration and status of electrical system circuits and permit them to lock out customer-owned DG devices for safety purposes using a highly secure and ultra-reliable radio signal. The system consists of: (1) individual personal lockout devices, (2) lockout communications and logic module at circuit breakers, which are located at all DG devices, and (3) a database and configuration control process located at the utility operations center. The lockout system is a close permissive, i.e., loss of control power or communications will cause the circuit breaker to open. Once the DG device is tripped open, a visual means will provide confirmation of a loss of voltage and current that verifies the disconnected status of the DG. Further the utility personnel will be able to place their own lock electronically on the system to ensure a lockout functionally. The proposed LOTO system provides enhanced worker safety and protection against unintended energized lines when DG is present. The main approaches and challenges encountered through designing the proposed region-wide LOTO system are discussed in this paper. These approaches include: (1) evaluating the reliability of the proposed approach under N-modular redundancy with voter/spares configurations and (2) conducting a system level risk assessment study using the failure modes and effects analysis (FMEA) technique to identify and rank failure modes by probability of occurrence, probability of detection, and severity of consequences. This ranking allows a cost benefits analysis to be conducted such that dollars and efforts will be applied to the failures that provide greatest incremental gains in system capability (resilience, survivability, security, reliability, availability, etc.) per dollar spent whether capital, operations, or investment. Several simulation scenarios and their results are presented to demonstrate the viability of these approaches.

Olama, Mohammed M [ORNL; Allgood, Glenn O [ORNL; Kuruganti, Phani Teja [ORNL; Howlader, Mostofa [ORNL; Kisner, Roger A [ORNL; Ewing, Paul D [ORNL; McIntyre, Timothy J [ORNL

2012-01-01T23:59:59.000Z

486

Analysis of advanced solar hybrid desiccant cooling systems for buildings  

SciTech Connect (OSTI)

This report describes an assessment of the energy savings possible from developing hybrid desiccant/vapor-compression air conditioning systems. Recent advances in dehumidifier design for solar desiccant cooling systems have resulted in a dehumidifier with a low pressure drop and high efficiency in heat and mass transfer. A recent study on hybrid desiccant/vapor compression systems showed a 30%-80% savings in resource energy when compared with the best conventional systems with vapor compression. A system consisting of a dehumidifier with vapor compression subsystems in series was found to be the simplest and best overall performer.

Schlepp, D.; Schultz, K.

1984-10-01T23:59:59.000Z

487

INTELLIGENT COMPUTING SYSTEM FOR RESERVOIR ANALYSIS AND RISK ASSESSMENT OF THE RED RIVER FORMATION  

SciTech Connect (OSTI)

Integrated software has been written that comprises the tool kit for the Intelligent Computing System (ICS). Luff Exploration Company is applying these tools for analysis of carbonate reservoirs in the southern Williston Basin. The integrated software programs are designed to be used by small team consisting of an engineer, geologist and geophysicist. The software tools are flexible and robust, allowing application in many environments for hydrocarbon reservoirs. Keystone elements of the software tools include clustering and neural-network techniques. The tools are used to transform seismic attribute data to reservoir characteristics such as storage (phi-h), probable oil-water contacts, structural depths and structural growth history. When these reservoir characteristics are combined with neural network or fuzzy logic solvers, they can provide a more complete description of the reservoir. This leads to better estimates of hydrocarbons in place, areal limits and potential for infill or step-out drilling. These tools were developed and tested using seismic, geologic and well data from the Red River Play in Bowman County, North Dakota and Harding County, South Dakota. The geologic setting for the Red River Formation is shallow-shelf carbonate at a depth from 8000 to 10,000 ft.

Kenneth D. Luff

2002-06-30T23:59:59.000Z

488

INTELLIGENT COMPUTING SYSTEM FOR RESERVOIR ANALYSIS AND RISK ASSESSMENT OF THE RED RIVER FORMATION  

SciTech Connect (OSTI)

Integrated software has been written that comprises the tool kit for the Intelligent Computing System (ICS). Luff Exploration Company is applying these tools for analysis of carbonate reservoirs in the southern Williston Basin. The integrated software programs are designed to be used by small team consisting of an engineer, geologist and geophysicist. The software tools are flexible and robust, allowing application in many environments for hydrocarbon reservoirs. Keystone elements of the software tools include clustering and neural-network techniques. The tools are used to transform seismic attribute data to reservoir characteristics such as storage (phi-h), probable oil-water contacts, structural depths and structural growth history. When these reservoir characteristics are combined with neural network or fuzzy logic solvers, they can provide a more complete description of the reservoir. This leads to better estimates of hydrocarbons in place, areal limits and potential for infill or step-out drilling. These tools were developed and tested using seismic, geologic and well data from the Red River Play in Bowman County, North Dakota and Harding County, South Dakota. The geologic setting for the Red River Formation is shallow-shelf carbonate at a depth from 8000 to 10,000 ft.

Kenneth D. Luff

2002-09-30T23:59:59.000Z

489

UNL Core for Applied Genomics and Ecology  

E-Print Network [OSTI]

UNL Core for Applied Genomics and Ecology Bioinformatics training Roche 454 GS-FLX Registration, Microbiomes, Variant Analysis, Whole Genomes, Transcriptomes Data Analysis and Statistics CAGE database and employer. University of Nebraska-Lincoln*Core for Applied Genomics and Ecology* 323 Filley Hall *Lincoln

Farritor, Shane

490

Hydrgoen Storage Systems Analysis Working Group Meeting Summary Report |  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Groundto Apply forInstitute Mission and Vision:

491

Water Rights Analysis Package (WRAP) Modeling System Reference Manual  

E-Print Network [OSTI]

The Texas Water Resources Institute (TWRI), and many other agencies and organizations, have worked with Ralph Wurbs over the years to develop WRAP (the Water Rights Analysis Package). The WRAP model simulates management of the water resources of a...

Wurbs, R.

2012-10-01T23:59:59.000Z

492

A versatile real-time spectral analysis system  

E-Print Network [OSTI]

. CONCLUSIONS AND RECOMMENDATIONS REFERENCES APPENDIX A. MINDOWING APPENDIX B. CCD TRANSVERSAL FILTERS VITA Page 65 71 73 81 92 93 105 105 106 106 108 112 114 134 170 LIST OF FIGURES Figure 1. Filterbank Technique for Spectral Analysis 2... 1. Filter Bank Technique 2. Sliding Filter Technique 3. Dispersive Filter Technique 4. Discrete Fourier Transform Techniques B. Applications Requiring Spectral Analysis . . 1. Real-Time Radar Scatterometer Data Processing 2. Chirp FN Radar Data...

Hancock, Mark Steven

2012-06-07T23:59:59.000Z

493

Commercial Aircraft Corporation of China (Comac) attempts to break the Airbus-Boeing duopoly, will it succeed? : an industry analysis framework applied  

E-Print Network [OSTI]

Using an industry analysis framework, this thesis analyzes whether the recently established Commercial Aircraft Corporation of China (Comac) is likely to break the Boeing-Airbus duopoly in the industry of large commercial ...

Fuentes, Jose L., S.M. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

494

Saturation curve analysis of humidification-dehumidification desalination systems and analysis of reversible ejector performance  

E-Print Network [OSTI]

The limitations upon the efficiency of humidification-dehumidification (HDH) desalination systems are investigated. Secondly, ejector technologies are analyzed as a means of powering desalination systems thermally. Thermal ...

McGovern, Ronan Killian

2012-01-01T23:59:59.000Z

495

analysis system based: Topics by E-print Network  

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

energy consumption and component stresses and instabilities. 1. FOREWORDS The micro-gas turbine based energy conversion systems represent one of the most recently developed...

496

Bottom-Up Energy Analysis System - Methodology and Results  

E-Print Network [OSTI]

market shares Industrial electric motors activity parametersInitiative. in IEA Electric Motor Systems Workshop. 2006.Standards for Electric Motors in Brazilian Industry. Energy

McNeil, Michael A.

2013-01-01T23:59:59.000Z

497

Thermochemical energy storage systems: modelling, analysis and design.  

E-Print Network [OSTI]

??Thermal energy storage (TES) is an advanced technology for storing thermal energy that can mitigate environmental impacts and facilitate more efficient and clean energy systems.… (more)

Haji Abedin, Ali

2010-01-01T23:59:59.000Z

498

analysis management system: Topics by E-print Network  

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

Systems Computer Technologies and Information Sciences Websites Summary: a conventional DBMS with the capability to automatically react to stim- uli occurring within and outside...

499

activation analysis system: Topics by E-print Network  

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

Systems Computer Technologies and Information Sciences Websites Summary: a conventional DBMS with the capability to automatically react to stim- uli occurring within and outside...

500

Differences and similarities in the analysis of Lorenz, Chen, and Lu systems  

E-Print Network [OSTI]

Currently it is being actively discussed the question of the equivalence of various Lorenz-like systems and the possibility of universal consideration of their behavior, in view of the possibility of reduction of such systems to the same form with the help of various transformations. In the present paper the differences and similarities in the analysis of the Lorenz, the Chen and the Lu systems are discussed and it is shown that the Chen and the Lu systems are valuable for the development of new methods for the analysis of chaotic systems.

G. A. Leonov; N. V. Kuznetsov

2014-09-27T23:59:59.000Z