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Note: This page contains sample records for the topic "dual-doppler techniques principal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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1

The Synthetic Dual-Doppler Analysis Technique  

Science Conference Proceedings (OSTI)

Synthetic dual-Doppler (SDD) is a single-Doppler analysis technique that combines measurements from two different times, provided the viewing angle changes significantly. In this study, the viability of the SDD technique is investigated through ...

Brian A. Klimowski; John D. Marwitz

1992-12-01T23:59:59.000Z

2

The Structure of Thermals in Cumulus from Airborne Dual-Doppler Radar Observations  

Science Conference Proceedings (OSTI)

A newly developed technique for airborne dual-Doppler observations with the Wyoming Cloud Radar is used to characterize the velocity fields in vertical planes across cumulus turrets. The clouds sampled were continental in nature, with high bases (...

Rick Damiani; Gabor Vali; Samuel Haimov

2006-05-01T23:59:59.000Z

3

Dual-Doppler and Single-Doppler Analysis of a Tornadic Storm Undergoing Mergers and Repeated Tornadogenesis  

Science Conference Proceedings (OSTI)

Dual-Doppler observations with unprecedented finescale spatial and temporal resolution are used to characterize the vector wind field in and near a tornado occurring near Kiefer, Oklahoma, on 26 May 1997. Analyses of the dual-Doppler vector wind ...

Joshua Wurman; Yvette Richardson; Curtis Alexander; Stephen Weygandt; Peng Fei Zhang

2007-03-01T23:59:59.000Z

4

Tornado Maintenance Investigated with High-Resolution Dual-Doppler and EnKF Analysis  

Science Conference Proceedings (OSTI)

Dual-Doppler wind synthesis and ensemble Kalman filter analyses produced by assimilating Doppler-on-Wheels velocity data collected in four tornadic supercells are examined in order to further understand the maintenance of tornadoes. Although ...

James Marquis; Yvette Richardson; Paul Markowski; David Dowell; Joshua Wurman

2012-01-01T23:59:59.000Z

5

Scopes and Challenges of Dual-Doppler Lidar Wind Measurements—An Error Analysis  

Science Conference Proceedings (OSTI)

Pulsed Doppler lidars are powerful tools for long-range high-resolution measurements of radial wind velocities. With the development of commercial Doppler lidars and the reduction of acquisition costs, dual-Doppler lidar systems will be become ...

Christina Stawiarski; Katja Träumner; Christoph Knigge; Ronald Calhoun

6

High-Resolution Dual-Doppler Analyses of the 29 May 2001 Kress, Texas, Cyclic Supercell  

Science Conference Proceedings (OSTI)

On 29 May 2001, Doppler on Wheels radars collected data on a supercell near Kress, Texas. The supercellular storm, cyclic in nature, produced multiple mesocyclones throughout its lifetime. Dual-Doppler syntheses were conducted using a grid ...

Jeffrey R. Beck; John L. Schroeder; Joshua M. Wurman

2006-11-01T23:59:59.000Z

7

Kinetic Energy Budgets of a Subtropical Squall Line Determined from TAMEX Dual-Doppler Measurements  

Science Conference Proceedings (OSTI)

Dual-Doppler data collected during the Taiwan Area Mesoscale Experiment (TAMEX) are used to study the kinetic energy balance of a subtropical squall line over the Taiwan Straits. Values of each term in the kinetic energy budget equation are ...

Yeong-Jer Lin; Hsi Shen; Robert W. Pasken

1991-11-01T23:59:59.000Z

8

Retrieval of Microscale Wind and Temperature Fields from Single- and Dual-Doppler Lidar Data  

Science Conference Proceedings (OSTI)

Dual-Doppler lidar observations are used to assess the accuracy of single-Doppler retrievals of microscale wind and temperature fields in a shear-driven convective boundary layer. The retrieval algorithm, which is based on four-dimensional ...

Rob K. Newsom; David Ligon; Ron Calhoun; Rob Heap; Edward Cregan; Marko Princevac

2005-09-01T23:59:59.000Z

9

A Study of Embryo Production and Hail Growth Using Dual-Doppler and Multiparameter Radars  

Science Conference Proceedings (OSTI)

The origin and importance to embryo and hail production of a region of drops advected above the freezing level in the updraft of a severe Colorado hailstorm is examined using radar polarization measurements in conjunction with dual-Doppler and ...

John W. Conway; Dušan S. Zrni?

1993-09-01T23:59:59.000Z

10

Extended Overdetermined Dual-Doppler Formalism in Synthesizing Airborne Doppler Radar Data  

Science Conference Proceedings (OSTI)

During the intensive observing period of the field phase of the Coupled Ocean–Atmosphere Response Experiment (COARE) of the Tropical Oceans and Global Atmosphere (TOGA) program, airborne Doppler radars capable of fore–aft scanning (dual-Doppler ...

Michel Chong; Cláudia Campos

1996-06-01T23:59:59.000Z

11

Vector Winds from a Single-Transmitter Bistatic Dual-Doppler Radar Network  

Science Conference Proceedings (OSTI)

A bistatic dual-Doppler weather radar network consisting of only one transmitter and a nontransmitting, nonscanning, low-cost bistatic receiver was deployed in the Boulder, Colorado, area during 1993.

Joshua Wurman

1994-06-01T23:59:59.000Z

12

The Genesis of Three Nonsupercell Tornadoes Observed with Dual-Doppler Radar  

Science Conference Proceedings (OSTI)

Dual-Doppler radar analyses of three tornadoes associated with a multicellular line of storms are presented. The F2–F3 intensity tornadoes occurred on 15 June 1988 near Denver, Colorado, during the Terminal Doppler Weather Radar (TDWR) Project. ...

Rita D. Roberts; James W. Wilson

1995-12-01T23:59:59.000Z

13

Aspects of Convective Boundary Layer Turbulence Measured by a Dual-Doppler Lidar System  

Science Conference Proceedings (OSTI)

Special designed dual-Doppler setups can be used to retrieve simultaneous measurements of two wind components with high temporal resolution in several heights throughout the atmospheric boundary layer. During a field campaign in summer 2011, ...

Luisa Röhner; Katja Träumner

2013-09-01T23:59:59.000Z

14

Volume Scanning Strategies for 3D Wind Retrieval from Dual-Doppler Lidar Measurements  

Science Conference Proceedings (OSTI)

Dual-Doppler lidar volume scans for 3D wind retrieval must accommodate the conflicting goals of dense spatial coverage and short scan duration. In this work, various scanning strategies are evaluated with semisynthetic wind fields from analytical ...

Susanne Drechsel; Georg J. Mayr; Michel Chong; Fotini K. Chow

2010-11-01T23:59:59.000Z

15

Scopes and Challenges of Dual-Doppler Lidar Wind Measurements—An Error Analysis  

Science Conference Proceedings (OSTI)

Pulsed Doppler lidars are powerful tools for long-range, high-resolution measurements of radial wind velocities. With the development of commercial Doppler lidars and the reduction of acquisition costs, dual-Doppler lidar systems will be become ...

Christina Stawiarski; Katja Träumner; Christoph Knigge; Ronald Calhoun

2013-09-01T23:59:59.000Z

16

Dual-Doppler Analysis of Winds and Vorticity Budget Terms near a Tornado  

Science Conference Proceedings (OSTI)

Three-dimensional dual-Doppler observations with unprecedented finescale spatial and temporal resolution are used to characterize the vector wind field and vorticity generation terms in and near a weak, short-lived tornado. The beam widths of the ...

Joshua Wurman; Yvette Richardson; Curtis Alexander; Stephen Weygandt; Peng Fei Zhang

2007-06-01T23:59:59.000Z

17

Use of a Vertical Vorticity Equation in Variational Dual-Doppler Wind Analysis  

Science Conference Proceedings (OSTI)

The utility of the anelastic vertical vorticity equation in a weak-constraint (least squares error) variational dual-Doppler wind analysis procedure is explored. The analysis winds are obtained by minimizing a cost function accounting for the ...

Alan Shapiro; Corey K. Potvin; Jidong Gao

2009-10-01T23:59:59.000Z

18

Obliquely Rotated Principal Components: An Improved Meteorological Map Typing Technique?  

Science Conference Proceedings (OSTI)

A detailed analysis of obliquely rotated principal components as a map typing technique was performed. This type of transformation does not constrain orthogonality of the vectors, allowing the components or map types the freedom to better reflect ...

Michael B. Richman

1981-10-01T23:59:59.000Z

19

Low-Wavenumber Structure and Evolution of the Hurricane Inner Core Observed by Airborne Dual-Doppler Radar  

Science Conference Proceedings (OSTI)

The asymmetric dynamics of the hurricane inner-core region is examined through a novel analysis of high temporal resolution, three-dimensional wind fields derived from airborne dual-Doppler radar. Seven consecutive composites of Hurricane Olivia’...

Paul D. Reasor; Michael T. Montgomery; Frank D. Marks Jr.; John F. Gamache

2000-06-01T23:59:59.000Z

20

Observations of the Sea-Breeze Front during CaPE. Part II: Dual-Doppler and Aircraft Analysis  

Science Conference Proceedings (OSTI)

The three-dimensional kinematic structures of offshore and onshore flow sea-breeze fronts observed during the CaPE experiment are shown using high resolution dual-Doppler and aircraft data. The fronts interact with horizontal convective rolls (...

Nolan T. Atkins; Roger M. Wakimoto; Tammy M. Weckwerth

1995-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Dual-Doppler Radar Analysis of a Midlatitude Squall Line with a Trailing Region of Stratiform Rain  

Science Conference Proceedings (OSTI)

The mesoscale structure of a squall-line system that passed over Oklahoma on 22 May 1976 is investigated by dual-Doppler radar analysis. The mature storm consisted of a leading line of deep convection, which exhibited organized multicellular ...

Bradley F. Smull; Robert A. Houze Jr.

1987-08-01T23:59:59.000Z

22

Single- and Dual-Doppler Analysis of a Tornadic Vortex and Surrounding Storm-Scale Flow in the Crowell, Texas, Supercell of 30 April 2000  

Science Conference Proceedings (OSTI)

Fine-resolution single- and dual-Doppler data were collected in the tornadic region of a supercell storm intercepted by two Doppler-on-Wheels radars on 30 April 2000 near Crowell, Texas. Eleven dual-Doppler analyses characterize the 2D and 3D ...

James Marquis; Yvette Richardson; Joshua Wurman; Paul Markowski

2008-12-01T23:59:59.000Z

23

A Kinetic Energy Analysis of a microburst-Producing Thunderstorm Based on JAWS Dual-Doppler Data  

Science Conference Proceedings (OSTI)

Dual-Doppler data collected from 1646 to 1648 MDT 14 July 1982 in Colorado are used to study the kinetic energy budget of a microburst-producing thunderstorm during its mature stage. Values of each term in the kinetic energy budget equation are ...

Yeong-jer Lin; John A. Coover

1988-10-01T23:59:59.000Z

24

Pressure and Temperature Perturbations within a Squall-Line Thunderstorm Derived from SESAME Dual-Doppler Data  

Science Conference Proceedings (OSTI)

Some dynamic and thermodynamic properties of a convective cell within a squall line that occurred on 6 June 1979 were studied based on dual-Doppler observations. The domain under investigation had a horizontal dimension of 27 km Ś 27 km with 12 ...

Y. J. Lin; T. C. Wang; J. H. Lin

1986-11-01T23:59:59.000Z

25

Polarimetric and Dual-Doppler Radar Observations of the Lipscomb County, Texas, Supercell Thunderstorm on 23 May 2002  

Science Conference Proceedings (OSTI)

Polarimetric and dual-Doppler observations of a supercell observed by the National Center for Atmospheric Research (NCAR) S-band Polarimetric (SPOL) radar, two Doppler-On-Wheels (DOW) radars, and the Greek XPOL radar on 23 May 2002 during the ...

Jeffrey Frame; Paul Markowski; Yvette Richardson; Jerry Straka; Joshua Wurman

2009-02-01T23:59:59.000Z

26

Characteristics of a Subtropical Squall Line Determined from TAMEX Dual-Doppler Data. Part II: Dynamic and Thermodynamic Structures and Momentum Budgets  

Science Conference Proceedings (OSTI)

A thermodynamic retrieval method was used to study the dynamical and thermodynamical structure of a subtropical squall line, which occurred on 17 May 1987 over the Taiwan Straits. Three-dimensional wind fields were derived from the dual-Doppler ...

Yeong-Jer Lin; Hsi Shen; Tai-Chi Chen Wang; Zen-Sing Deng; Robert W. Pasken

1990-10-01T23:59:59.000Z

27

Dual-Doppler observations of the formative stage of an asymmetric squall line system  

E-Print Network (OSTI)

The objective of this study is to document and explain the formation of a large asymmetric squall line system. Despite having a precipitation pattern similar to the conceptual model of an asymmetric squall line, the development and evolution of the storm system was considerably different from previous asymmetric squall line studies. Dual-Doppler data collected on 24-25 May 1997 during the TEXACAL field campaign revealed that the asymmetric squall line developed from the merging of two distinct squall lines oriented parallel to each other. The development of the trailing stratiform precipitation region and the evolution of the convection within the southern part of the convective line were influenced by the merging squall lines. The trailing stratiform region formed as dissipating convection in the northern portion of the western squall line merged with the developing stratiform precipitation region associated with the eastern squall line. Intense storm-relative rear inflow was present at the rear of the northern portion of the western squall line. A pronounced anticyclonic circulation associated with a bow echo along the leading edge of the southern portion of the western squall line affected the intensity of convection in the southern part of the domain as the flow entered the rear of the convective line and accelerated towards the leading edge causing intense upward motion and strong convection.

Jamieson, Daniel Richard

2002-01-01T23:59:59.000Z

28

An Analysis of Cold Season Supercell Storms Using the Synthetic Dual-Doppler Technique  

Science Conference Proceedings (OSTI)

Cold season tornadic outbreaks occur with regularity in the southeastern United States; however, detailed analyses of parent supercell storms in the cold season environment (often low CAPE, high shear) are scarce. This is often because storms do ...

Todd A. Murphy; Kevin R. Knupp

2013-02-01T23:59:59.000Z

29

32 JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY VOLUME 29 Impact of a Vertical Vorticity Constraint in Variational Dual-Doppler Wind Analysis: Tests with Real and Simulated Supercell Data  

E-Print Network (OSTI)

One of the greatest challenges to dual-Doppler retrieval of the vertical wind is the lack of low-level divergence information available to the mass conservation constraint. This study examines the impact of a vertical vorticity equation constraint on vertical velocity retrievals when radar observations are lacking near the ground. The analysis proceeds in a three-dimensional variational data assimilation (3DVAR) framework with the anelastic form of the vertical vorticity equation imposed along with traditional data, mass conservation, and smoothness constraints. The technique is tested using emulated radial wind observations of a supercell storm simulated by the Advanced Regional Prediction System (ARPS), as well as real dual-Doppler observations of a supercell storm that occurred in Oklahoma on 8 May 2003. Special attention is given to procedures to evaluate the vorticity tendency term, including spatially variable advection correction and estimation of the intrinsic evolution. Volume scan times ranging from 5 min, typical of operational radar networks, down to 30 s, achievable by rapid-scan mobile radars, are considered. The vorticity constraint substantially improves the vertical velocity retrievals in our experiments, particularly for volume scan times smaller than 2 min. 1.

Corey K. Potvin

2011-01-01T23:59:59.000Z

30

Three-Dimensional Wind Field Analysis from Dual-Doppler Radar Data. Part I: Filtering, Interpolating and Differentiating the Raw Data  

Science Conference Proceedings (OSTI)

This paper is the first of three dealing with the three-dimensional wind field analysis from dual-Doppler radar data. Here we deal with the first step of the analysis which consists in interpolating and filtering the raw radial velocity fields ...

J. Testud; M. Chong

1983-07-01T23:59:59.000Z

31

Multivariate analysis of remote LIBS spectra using partial least squares, principal component analysis, and related techniques  

Science Conference Proceedings (OSTI)

Quantitative analysis with LIBS traditionally employs calibration curves that are complicated by the chemical matrix effects. These chemical matrix effects influence the LIBS plasma and the ratio of elemental composition to elemental emission line intensity. Consequently, LIBS calibration typically requires a priori knowledge of the unknown, in order for a series of calibration standards similar to the unknown to be employed. In this paper, three new Multivariate Analysis (MV A) techniques are employed to analyze the LIBS spectra of 18 disparate igneous and highly-metamorphosed rock samples. Partial Least Squares (PLS) analysis is used to generate a calibration model from which unknown samples can be analyzed. Principal Components Analysis (PCA) and Soft Independent Modeling of Class Analogy (SIMCA) are employed to generate a model and predict the rock type of the samples. These MV A techniques appear to exploit the matrix effects associated with the chemistries of these 18 samples.

Clegg, Samuel M [Los Alamos National Laboratory; Barefield, James E [Los Alamos National Laboratory; Wiens, Roger C [Los Alamos National Laboratory; Sklute, Elizabeth [MT HOLYOKE COLLEGE; Dyare, Melinda D [MT HOLYOKE COLLEGE

2008-01-01T23:59:59.000Z

32

Principal Metals Online  

Science Conference Proceedings (OSTI)

Topic Title: WEB RESOURCE: Principal Metals Online Topic Summary: Principal Metals inventory database. Created On: 2/9/2007 5:41 AM, Topic View:.

33

Adaptive kernel principal component analysis  

Science Conference Proceedings (OSTI)

An adaptive kernel principal component analysis (AKPCA) method, which has the flexibility to accurately track the kernel principal components (KPC), is presented. The contribution of this paper may be divided into two parts. First, KPC are recursively ... Keywords: Adaptive method, Kernel principal component, Kernel principal component analysis, Non-stationary data, Recursive algorithm

Mingtao Ding; Zheng Tian; Haixia Xu

2010-05-01T23:59:59.000Z

34

Dual-Doppler Lidar Measurements for Improving Dispersion Models  

Science Conference Proceedings (OSTI)

Dispersion of pollutants in the urban atmosphere is a subject that is presently under much investigation. In this paper the variables used in turbulent dispersion and plume rise schemes of the Met Office Nuclear Accident Model (NAME) are ...

Chris G. Collier; Fay Davies; Karen E. Bozier; Anthony R. Holt; Doug R. Middleton; Guy N. Pearson; Stephan Siemen; Dave V. Willetts; Graham J. G. Upton; Rob I. Young

2005-06-01T23:59:59.000Z

35

Principal Associate Director - Global Security  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Associate Director - Global Security Principal Associate Director - Global Security As Principal Associate Director for Global Security, Wallace leads Laboratory programs with special focus on developing and applying the scientific and engineering capabilities to address complex national and global security threats. Contact Operator Los Alamos National Laboratory (505 667-5061 Wallace's expertise is forensic seismology, a highly specialized discipline focusing on detection and quantification of nuclear tests. Terry C. Wallace, Jr. Principal Associate Director for Global Security Terry C. Wallace, Jr., Principal Associate Director for Global Security As Principal Associate Director for Global Security, Wallace leads Laboratory programs with a focus on applying scientific and engineering capabilities

36

Principal Associate Director - Capital Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Associate Director - Capital Projects Principal Associate Director - Capital Projects As Principal Associate Director for Capital Projects, Henry is responsible for institutional large-project construction and management and environmental cleanup functions. Contact Operator Los Alamos National Laboratory (505) 667-5061 Before coming to the Lab in 2011, he served as manager of the $3.2 billion project to safely destroy the stockpile of deadly mustard chemical agent at the Pueblo Chemical Depot in Colorado. Paul Henry Principal Associate Director for Capital Projects Paul Henry, Principal Associate Director for Capital Projects As Principal Associate Director for Capital Projects, Henry is responsible for institutional large-project construction and management and environmental cleanup functions.

37

Principal Associate Director - Weapons Programs  

NLE Websites -- All DOE Office Websites (Extended Search)

Weapons Programs As Principal Associate Director for the Weapons Program, Knapp leads the programs to assure the safety, security, and effectiveness of the systems in the nation's...

38

Supervised probabilistic principal component analysis  

Science Conference Proceedings (OSTI)

Principal component analysis (PCA) has been extensively applied in data mining, pattern recognition and information retrieval for unsupervised dimensionality reduction. When labels of data are available, e.g., in a classification or regression task, ... Keywords: dimensionality reduction, principal component analysis, semi-supervised projection, supervised projection

Shipeng Yu; Kai Yu; Volker Tresp; Hans-Peter Kriegel; Mingrui Wu

2006-08-01T23:59:59.000Z

39

Principal  

E-Print Network (OSTI)

To Distribution: Attached is our final report, DEVELOPING A COAL QUALITY EXPERT: COMBUSTION AND FIRESIDE PERFORMANCE CHARACTERIZATION FACTORS, a topical report on coals that were burned on Mississippi Power's Watson Station. The report covers results from pilot scale testing and from our boiler performance modeling tests. Our objective in conducting pilot scale tests and conducting the boiler performance modeling studies is to provide information for algorithm development, primarily in the areas of slagging and fouling and also for fly ash erosion and boiler performance. The information, which is now summarized in the attached report, was previously supplied to cognizant personnel at UND EERC and PSIT, our subcontractors who are working on fouling and slagging algorithm development, respectively. Included in the Appendix of the report are facility descriptions, information from the scanning electron microscopy (SEM) analysis and procedures for the SEM analysis, and all detailed information from pilot scale testing. Sincerely,

Watson Station; Asea Brown Boveri; Power Plant Laboratories; Richard W. Borio; Bruce F. Griffith; David E. Thornock; Lorraine S. Miemiec; Benjamin R. Pease Executive

1993-01-01T23:59:59.000Z

40

A Significance Test for Principal Components Applied to a Cyclone Climatology  

Science Conference Proceedings (OSTI)

A technique is presented for selection of principal components for which the geophysical signal is greater than the level of noise. The level of noise is simulated by repeated sampling of principal components computed from a spatially and ...

James E. Overland; R. W. Preisendorfer

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

NPP Principal Investigators and Reviewers  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Investigators and Reviewers Principal Investigators and Reviewers Where possible, the original principal investigator or his/her successor has been contacted to review the net primary productivity (NPP) data and documentation. All those who have assisted with the development of the ORNL DAAC NPP database by contributing or reviewing its contents are gratefully acknowledged. The following list is not comprehensive; there are many others who have provided additional data or useful feedback on the format and structure of the database, but we can at least acknowledge the following persons: Grassland Sites: Bill Lauenroth, Colorado State University, USA billl@cnr.colostate.edu Bill Parton, Colorado State University, USA billp@nrel.colostate.edu Pablo Roset, University of Buenos Aires, Argentina blopas@ifeva.edu.ar

42

Principal Investigator First Name College  

E-Print Network (OSTI)

The project costs requested in this application are necessary to perform the grant activities and have beenMail Stop Principal Investigator First Name College Employment Type Project Approval Form Office Person #1 Project Information Project Title Project Budget Email Fax Telephone Zip Code Street Address

Snider, Barry B.

43

ARM - Principal Investigator Data Products  

NLE Websites -- All DOE Office Websites (Extended Search)

govDataPI Data Products govDataPI Data Products Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Data Products These data sets have been made available by ARM principal investigators (PI) or by others for use by the scientific community through the ARM Data Archive. These data are value-added products to particular ARM data sets or are derived research data of value to ARM science. To submit your own value-added data set, go to Data Product Registration and Submission. Using your Archive account, these data are freely available. First time users of the Archive will need to create a new account by completing a relatively short form asking for contact information-accounts are activated right away. Product Name Investigator Sites Start End

44

Essays on the principal-expert problem  

E-Print Network (OSTI)

This dissertation studies the problem of motivating an expert to help a principal take a decision. The first chapter examines a principal-expert model in which the only source of friction is that the expert must be induced ...

Zermeńo Vallés, Luis G. (Luis Guillermo)

2012-01-01T23:59:59.000Z

45

Tensor Principal Component Analysis via Convex Optimization  

E-Print Network (OSTI)

Dec 11, 2012 ... Keywords: Tensor; Principal Component Analysis; Low Rank; Nuclear Norm; Semidefinite Programming Relaxation. Category 1: Convex and ...

46

Science & Technology Principal Directo rate – Industrial ...  

Erik Stenehjem Science & Technology Principal Directo rate – Industrial Partnerships Office Erik Stenehjem Director----Roger Werne Deputy Director

47

Tensor Principal Component Analysis via Convex Optimization  

E-Print Network (OSTI)

Dec 9, 2012 ... tensor, known as the tensor principal component analysis (PCA) ...... of RAM, and all the default settings of CVX were used for all the tests.

48

Organization: Principal Associate Directorate for Global Security...  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Associate Director Terry Wallace Associate Director Threat Identification and Response Scott Gibbs Phone: 1-505-667-1663 Fax: 1-505-665-8974 Organization PADGS...

49

NERSC Allocations: For Principal Investigators and Managers  

NLE Websites -- All DOE Office Websites (Extended Search)

Allocations NERSC Allocations: for Principal Investigators and Account Managers Allocations Overview and Eligibility A researcher may apply for an allocation of NERSC resources if...

50

Principal curvatures from the integral invariant viewpoint  

Science Conference Proceedings (OSTI)

The extraction of curvature information for surfaces is a basic problem of Geometry Processing. Recently an integral invariant solution of this problem was presented, which is based on principal component analysis of local neighborhoods defined by kernel ... Keywords: Integral invariants, Principal curvatures, Robustness

Helmut Pottmann; Johannes Wallner; Yong-Liang Yang; Yu-Kun Lai; Shi-Min Hu

2007-11-01T23:59:59.000Z

51

Principal Associate Director - Science, Technology, and Engineering  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Associate Director - Science, Technology, and Engineering Principal Associate Director - Science, Technology, and Engineering Bishop oversees directorates of Chemistry, Life, and Earth Sciences; Engineering and Engineering Sciences; Experimental Physical Sciences; Information Technology; and Theory, Simulation, and Computation. Contact Operator Los Alamos National Laboratory (505 667-5061 Bishop is a Fellow of the American Physical Society, the Institute of Physics, and the American Association for the Advancement of Science; a recipient of the Department of Energy's E.O. Lawrence Award; a Humboldt Senior Fellow; and a LANL Fellow. Alan R. Bishop Principal Associate Director for Science, Technology, and Engineering Alan R. Bishop, Acting Principal Associate Director for Science, Technology and Engineering As Principal Associate Director for Science, Technology, and Engineering,

52

Detection of Important Atmospheric and Surface Features by Employing Principal Component Image Transformation of GOES Imagery  

Science Conference Proceedings (OSTI)

The detection of dust, fire hot spots, and smoke from the Geostationary Operational Environmental Satellite (GOES) is made easier by employing the principal component image (PCI) technique. PCIs are created by an eigenvector transformation of ...

Donald W. Hillger; Gary P. Ellrod

2003-05-01T23:59:59.000Z

53

Principal Component Analysis of Wind Profiler Observations  

Science Conference Proceedings (OSTI)

Principal component analysis (PCA) is applied to wind profiler observations to study the vertical profile of the wind field and its temporal evolution. The rationale for decomposing time–height wind profiler data using PCA is twofold. The ...

Christopher R. Williams

1997-06-01T23:59:59.000Z

54

Complex Principal Component Analysis: Theory and Examples  

Science Conference Proceedings (OSTI)

Complex principal component (CPC) analysis is shown to be a useful method for identifying traveling and standing waves in geophysical data sets. Combinations of simple progressive and standing oscillations are used to examine the properties of ...

J. D. Horel

1984-12-01T23:59:59.000Z

55

Clustering and disjoint principal component analysis  

Science Conference Proceedings (OSTI)

A constrained principal component analysis, which aims at a simultaneous clustering of objects and a partitioning of variables, is proposed. The new methodology allows us to identify components with maximum variance, each one a linear combination of ...

Maurizio Vichi; Gilbert Saporta

2009-06-01T23:59:59.000Z

56

Non-principal surface waves in deformed incompressible materials  

E-Print Network (OSTI)

The Stroh formalism is applied to the analysis of infinitesimal surface wave propagation in a statically, finitely and homogeneously deformed isotropic half-space. The free surface is assumed to coincide with one of the principal planes of the primary strain, but a propagating surface wave is not restricted to a principal direction. A variant of Taziev's technique [Sov. Phys. Acoust. 35 (1989) 535] is used to obtain an explicit expression of the secular equation for the surface wave speed, which possesses no restrictions on the form of the strain energy function. Albeit powerful, this method does not produce a unique solution and additional checks are necessary. However, a class of materials is presented for which an exact secular equation for the surface wave speed can be formulated. This class includes the well-known Mooney-Rivlin model. The main results are illustrated with several numerical examples.

Michel Destrade; Melanie Ottenio; Alexey V. Pichugin; Graham A. Rogerson

2013-04-23T23:59:59.000Z

57

Principal leadership for technology integration: a study of principal technology leadership.  

E-Print Network (OSTI)

??Today’s school systems require building principals to be not only managers of information and instructional practice but also leaders. This leadership is a key component… (more)

Kozloski, Kristen C.

2006-01-01T23:59:59.000Z

58

Airborne Dual-Doppler Observations of an Intense Frontal System Approaching the Pacific Northwest Coast  

Science Conference Proceedings (OSTI)

Airborne Doppler radar data, collected off the Pacific Northwest coast by a NOAA WP-3D Orion aircraft over an 8-h period on 8 December 1993 during the Coastal Observations and Simulations with Topography experiment, reveal the mesoscale structure ...

Scott A. Braun; Robert A. Houze Jr.; Bradley F. Smull

1997-12-01T23:59:59.000Z

59

Three-Dimensional Wind Retrieval: Application of MUSCAT to Dual-Doppler Lidar  

Science Conference Proceedings (OSTI)

During the field campaign of the Terrain-induced Rotor Experiment (T-REX) in the spring of 2006, Doppler lidar measurements were taken in the complex terrain of the Californian Owens Valley for six weeks. While fast three-dimensional (3D) wind ...

Susanne Drechsel; Georg J. Mayr; Michel Chong; Martin Weissmann; Andreas Dörnbrack; Ronald Calhoun

2009-03-01T23:59:59.000Z

60

Dual-Doppler and Multiparameter Radar Observations of a Bow-Echo Hailstorm  

Science Conference Proceedings (OSTI)

During the afternoon and evening hours of 23 May 1991 a hail-producing multicellular severe thunderstorm developed near Denver, Colorado, and tracked eastward for more than 100 km. Along this path, hailstone diameters of 2–7 cm (0.75–2.75 in.) ...

Patrick C. Kennedy; Steven A. Rutledge

1995-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

A Dual-Doppler Radar Study of an OK PRE-STORM Heat Burst Event  

Science Conference Proceedings (OSTI)

Doppler and conventional radar, surface mesonetwork, and sounding data are used to investigate heat bursts that accompanied a mesoscale convective system (MCS) that traversed the OK PRE-STORM (Oklahoma–Kansas Preliminary Regional Experiment for ...

Ben C. Bernstein; Richard H. Johnson

1994-02-01T23:59:59.000Z

62

Meeting Dinner at the El Principal Restaurant  

National Nuclear Security Administration (NNSA)

http://www.lanl.gov/programs/asc/6lab.shtml http://www.lanl.gov/programs/asc/6lab.shtml Wednesday, October 26, 2011 Meeting Dinner at the El Principal Restaurant (time to be announced) Directions from the Hotel Majestic (A) to the El Principal Restaurant (B) ENGINEERING MATERIALS & AT EXTREME CONDITIONS Presentation Title International collaboration on the development and application of proton radiography Frank Merrill LANL Electro--Physical Research Methods for Materials at Extreme Conditions with the Use of Magnetic Generators Andrey V. Ivanovsky VNIIEF Research of Possibility of Radiography in Fast Neutrons by Use of Portable Neutron Generators Dmitriy I. Yurkov VNIIA Dynamic HED Experiments and Theory at the Sandia Z Facility Thomas Mattson SNL New regimes For Supernova--Relevant

63

Application of neural networks to discriminate fungal infection levels in rice panicles using hyperspectral reflectance and principal components analysis  

Science Conference Proceedings (OSTI)

Detecting plant health condition is an important step in controlling disease and insect stress in agricultural crops. In this study, we applied neural network and principal components analysis techniques for discriminating and classifying different fungal ... Keywords: Derivative spectra, Neural networks, Principal component analysis, Remote sensing, Rice false smut disease, Rice glume blight disease, Spectral reflectance

Zhan-Yu Liu; Hong-Feng Wu; Jing-Feng Huang

2010-07-01T23:59:59.000Z

64

Visiting Classrooms: A Design Study to Support Principals' Instructional Leadership  

E-Print Network (OSTI)

to all eight teachers at Edison. As Figure 4.8 demonstrates,that you weren’t prepped? – Edison principal (FN – 3/25/11)pleased [with the lesson]? – Edison principal (FN – 3/11/10)

Wayne, Matthew Robert

2011-01-01T23:59:59.000Z

65

Leading in science| Teachers' perceptions of their principal's supervisory effectiveness.  

E-Print Network (OSTI)

?? This study attempted to discover if a correlation existed between a principal's academic background and their ability to lead science instruction. In the quantitative… (more)

Barish, Lois Siederer

2008-01-01T23:59:59.000Z

66

Argonne TDC: Arun S. Wagh, Principal Developer, Ceramicrete  

Arun S. Wagh, Principal Developer, Ceramicrete. Dr. Wagh has a PhD in physics. His expertise includes radioactive, hazardous, and mineral waste management and ...

67

First principal components analysis: a new side channel distinguisher  

Science Conference Proceedings (OSTI)

Side Channel Analysis (SCA) are of great concern since they have shown their efficiency in retrieving sensitive information from secure devices. In this paper we introduce First Principal Components Analysis (FPCA) which consists in evaluating the relevance ... Keywords: CPA, DPA, DoM, VPA, data encryption standard (DES), masking countermeasures, principal component analysis (PCA), side channel attacks

Youssef Souissi; Maxime Nassar; Sylvain Guilley; Jean-Luc Danger; Florent Flament

2010-12-01T23:59:59.000Z

68

2007 Special Issue: Nonlinear principal component analysis of noisy data  

Science Conference Proceedings (OSTI)

With very noisy data, having plentiful samples eliminates overfitting in nonlinear regression, but not in nonlinear principal component analysis (NLPCA). To overcome this problem in NLPCA, a new information criterion (IC) is proposed for selecting the ... Keywords: Autoassociative neural network, El Nińo, ENSO, Information criterion, Model selection, Nonlinear principal component analysis, Quasi-biennial oscillation, Regularization

William W. Hsieh

2007-05-01T23:59:59.000Z

69

1999 Commercial Buildings Characteristics--Principal Building Activities  

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

Principal Building Activities Principal Building Activities Principal Building Activities Three of the four activities that dominated commercial floorspace-office, warehouse and storage, and mercantile-dominated the distribution of buildings (Figure 1). Each of these three activity categories included more than 600,000 buildings, while no other building activity had more than a half-million buildings and only service buildings exceeded 350,000 buildings. Detailed tables Figure 1. Distribution of Buildings by Principal Building Activity, 1999 Figure 1. Distribution of Buildings by Principal Building Activity, 1999. If having trouble viewing this page, please contact the National Energy Information Center at (202) 586-8800. Energy Information Administration Commercial Buildings Energy Consumption Survey

70

Property:Geothermal/OtherPrincipalInvestigator | Open Energy Information  

Open Energy Info (EERE)

OtherPrincipalInvestigator OtherPrincipalInvestigator Jump to: navigation, search Property Name Geothermal/OtherPrincipalInvestigator Property Type String Description Other Principal Investigators Subproperties This property has the following 2 subproperties: A A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project D Development of Chemical Model to Predict the Interactions between Supercritical CO2 and Fluid, Rocks in EGS Reservoirs Geothermal Project Pages using the property "Geothermal/OtherPrincipalInvestigator" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + John Louie, University of Nevada and Lisa Shevenell, University of Nevada +

71

Principal Interaction Patterns in Baroclinic Wave Life Cycles  

Science Conference Proceedings (OSTI)

A principal interaction pattern (PIP) analysis aims at finding a limited number of structures in seemingly very complicated physical scenarios that are time independent up to their amplitudes and phases. These vary according to nonlinear ...

U. Achatz; G. Schmitz; K-M. Greisiger

1995-09-01T23:59:59.000Z

72

Management Skills and Attitudes of Principals Toward Energy Utilization  

E-Print Network (OSTI)

The purpose of this study was to compare several factors in the management skills of principals which affected energy utilization and, therefore, increased or decreased energy consumption in the school plant. This study provided districts with information to differentiate between management skills exhibited by school principals in meeting their energy utilization goals. This information could be used to design in service programs on energy utilization for principals to define the role of administrators in energy conservation and to alert certification institutions of any facility management deficiencies in administrative training. This study provided baseline data for the energy management systems companies involved in districts' conservation efforts during the late 1980s to educate principals in energy conservation.

Huntington, P.; Mayfield, E.

1987-01-01T23:59:59.000Z

73

NETL: News Release - DOE Names New Principal Deputy Assistant...  

NLE Websites -- All DOE Office Websites (Extended Search)

November 4, 2008 DOE Names New Principal Deputy Assistant Secretary for Fossil Energy WASHINGTON, D. C. - The U. S. Department of Energy has announced the selection of Dr. Victor...

74

APPLICATION FOR NUCLEAR SUBSTANCE USER PERMIT 1. a) Principal Investigator: ________________________  

E-Print Network (OSTI)

APPLICATION FOR NUCLEAR SUBSTANCE USER PERMIT 1. a) Principal Investigator-Mail: ____________________________________ 2. Previous experience in nuclear substance work by applicant: ________________________________________________________________________ 3. List all rooms where nuclear substances will be used or stored

Beaumont, Christopher

75

Who's Your Agent? Quantifying Energy Affected by the Principal...  

NLE Websites -- All DOE Office Websites (Extended Search)

Who's Your Agent? Quantifying Energy Affected by the Principal-Agent Barrier in U.S. Households Speaker(s): Jayant Sathaye Date: May 9, 2006 - 12:00pm Location: Bldg. 90 This...

76

Use of Temporal Principal Components Analysis to Determine Seasonal Periods  

Science Conference Proceedings (OSTI)

Temporal principal components analysis was applied separately to monthly long-term wind, temperature, and precipitation data for Southern California. Physical explanations of the significant eigenvectors are presented. Cluster analysis of the ...

Mark C. Green; Robert G. Flocchini; Leonard O. Myrup

1993-05-01T23:59:59.000Z

77

Evolution of Lightning Activity and Storm Charge Relative to Dual-Doppler Analysis of a High-Precipitation Supercell Storm  

Science Conference Proceedings (OSTI)

A high-precipitation tornadic supercell storm was observed on 29–30 May 2004 during the Thunderstorm Electrification and Lightning Experiment. Observational systems included the Oklahoma Lightning Mapping Array, mobile balloon-borne soundings, and ...

Kristin M. Calhoun; Donald R. MacGorman; Conrad L. Ziegler; Michael I. Biggerstaff

2013-07-01T23:59:59.000Z

78

Airborne Pseudo-Dual-Doppler Analysis of a Rear-Inflow Jet and Deep Convergence Zone within a Supercell  

Science Conference Proceedings (OSTI)

On 22 May 1995, numerous thunderstorms, several of which produced large hail and small tornadoes, formed along a dryline in the central and northern Texas Panhandle. The only long-lasting, daytime, severe storms developed later, south of the ...

Howard B. Bluestein; Stephen G. Gaddy

2001-09-01T23:59:59.000Z

79

Variational Analysis of Oversampled Dual-Doppler Radial Velocity Data and Application to the Analysis of Tornado Circulations  

Science Conference Proceedings (OSTI)

For the detection of severe weather phenomena such as tornados, mesocyclones, and strong wind shear, the azimuthal resolution of radial velocity measurements is more important. The typical azimuthal resolutions of 1° for the Weather Surveillance ...

Ming Xue; Shun Liu; Tian-You Yu

2007-03-01T23:59:59.000Z

80

Principal realization of the Yangian Y(gl(n))  

SciTech Connect

Motivated to simplify the structure of tensor representations we give a new set of generators for the Yangian Y(sl(n)) using the principal realization in simple Lie algebras. The isomorphism between our new basis and the standard Cartan-Weyl basis is also given. We show by example that the principal basis simplifies the Yangian action significantly in the tensor product of the fundamental representation and its dual.

Bai Chengming [Chern Institute of Mathematics and LPMC, Nankai University, Tanjin 300071 (China); Ge Molin [Chern Institute of Mathematics, Nankai University, Tanjin 300071 (China); Jing Naihuan [Department of Mathematics, North Carolina State University, Raleigh, North Carolina 27695-8205 (United States) and School of Sciences, South China University of Technology, Guangzhou 510640 (China)

2009-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Buildings*","Principal Building Activity"  

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

3. Selected Principal Activity: Part 2, Number of Buildings for Non-Mall Buildings, 2003" 3. Selected Principal Activity: Part 2, Number of Buildings for Non-Mall Buildings, 2003" ,"Number of Buildings (thousand)" ,"All Buildings*","Principal Building Activity" ,,"Office","Public Assembly","Public Order and Safety","Religious Worship","Service","Warehouse and Storage" "All Buildings* ...............",4645,824,277,71,370,622,597 "Building Floorspace" "(Square Feet)" "1,001 to 5,000 ...............",2552,503,119,37,152,434,294 "5,001 to 10,000 ..............",889,127,67,"Q",104,100,110 "10,001 to 25,000 .............",738,116,69,"Q",83,66,130 "25,001 to 50,000 .............",241,43,9,"Q",27,17,27

82

1999 Commercial Buildings Characteristics--Disaggregated Principal Building  

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

Disaggregated Principal Building Activities Disaggregated Principal Building Activities Disaggregated Principal Building Activities The 1999 CBECS collected information for 20 general building activities. Five of the activities were aggregated and data for 16 activities are displayed in the detailed tables. Within the aggregated warehouse and storage category, nonrefrigerated warehouses greatly exceeded refrigerated warehouses both in amount of floorspace and number of buildings (compare Figure 1 with Figure 2). Within the mercantile category, the number of retail buildings greatly exceeded strip shopping buildings which, in turn, greatly exceeded enclosed shopping malls (Figure 2). The amount of mercantile floorspace was more evenly distributed (Figure 1) because of differences in average building size-enclosed malls were largest and retail buildings the smallest.

83

DOE Hydrogen Analysis Repository: Hydrogen Analysis Projects by Principal  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Investigator Principal Investigator Below are hydrogen analyses and analytical models grouped by principal investigator. | A | B | C | D | E | F | G | H | J | K | L | M | N | O | P | R | S | T | U | V | W A Portfolio of Power-Trains for Europe Review of FreedomCAR and Fuel Partnership Ahluwalia, Rajesh Fuel Cell Systems Analysis GCtool-ENG Ahluwalia, Rajesh K. Hydrogen Storage Systems Analysis Ahmed, Shabbir Cost Implications of Hydrogen Quality Requirements Fuel Quality Effects on Stationary Fuel Cell Systems Fuel Quality in Fuel Cell Systems Quick Starting Fuel Processors - A Feasibility Study Amos, Wade Biological Water-Gas Shift Costs of Storing and Transporting Hydrogen Photobiological Hydrogen Production from Green Algae Cost Analysis Arif, Muhammad Fuel Cell Water Transport Mechanism

84

A Look at Principal Building Activities in Commercial Buildings  

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

Home > Commercial Buildings Home> Special Topics > 1995 Principal Home > Commercial Buildings Home> Special Topics > 1995 Principal Building Activities Office Education Health Care Retail and Service Food Service Food Sales Lodging Religious Worship Public Assembly Public Order and Safety Warehouse and Storage Vacant Other Summary Comparison Table (All Activities) More information on the: Commercial Buildings Energy Consumption Survey A Look at ... Principal Building Activities in the Commercial Buildings Energy Consumption Survey (CBECS) When you look at a city skyline, most of the buildings you see are commercial buildings. In the CBECS, commercial buildings include office buildings, shopping malls, hospitals, churches, and many other types of buildings. Some of these buildings might not traditionally be considered "commercial," but the CBECS includes all buildings that are not residential, agricultural, or industrial.

85

Buildings*","Principal Building Activity"  

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

1. Selected Principal Building Activity: Part 1, Number of Buildings for Non-Mall Buildings, 2003" 1. Selected Principal Building Activity: Part 1, Number of Buildings for Non-Mall Buildings, 2003" ,"Number of Buildings (thousand)" ,"All Buildings*","Principal Building Activity" ,,"Education","Food Sales","Food Service","Health Care",,"Lodging","Retail (Other Than Mall)" ,,,,,"Inpatient","Outpatient" "All Buildings* ...............",4645,386,226,297,8,121,142,443 "Building Floorspace" "(Square Feet)" "1,001 to 5,000 ...............",2552,162,164,202,"N",56,38,241 "5,001 to 10,000 ..............",889,56,44,65,"N",38,21,97 "10,001 to 25,000 .............",738,60,"Q",23,"Q",19,38,83

86

Buildings*","Principal Building Activity"  

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

4. Selected Principal Activity: Part 2, Floorspace for Non-Mall Buildings, 2003" 4. Selected Principal Activity: Part 2, Floorspace for Non-Mall Buildings, 2003" ,"Total Floorspace (million square feet)" ,"All Buildings*","Principal Building Activity" ,,"Office","Public Assembly","Public Order and Safety","Religious Worship","Service","Warehouse and Storage" "All Buildings* ...............",64783,12208,3939,1090,3754,4050,10078 "Building Floorspace" "(Square Feet)" "1,001 to 5,000 ...............",6789,1382,336,122,416,1034,895 "5,001 to 10,000 ..............",6585,938,518,"Q",744,722,868 "10,001 to 25,000 .............",11535,1887,1077,"Q",1235,1021,2064 "25,001 to 50,000 .............",8668,1506,301,"Q",930,560,1043

87

Improved principal component monitoring using the local approach  

Science Conference Proceedings (OSTI)

This paper shows that current multivariate statistical monitoring technology may not detect incipient changes in the variable covariance structure nor changes in the geometry of the underlying variable decomposition. To overcome these deficiencies, the ... Keywords: Covariance structure, Dynamics, Fault detection and isolation, Local approach, Principal component analysis

Uwe Kruger; Sukhbinder Kumar; Tim Littler

2007-09-01T23:59:59.000Z

88

Revised 1997 Retail Electricity Price Forecast Principal Author: Ben Arikawa  

E-Print Network (OSTI)

Revised 1997 Retail Electricity Price Forecast March 1998 Principal Author: Ben Arikawa Electricity Energy Commission until adopted at a public meeting. #12;Revised 1997 Retail Price Forecast, December ELECTRICITY PRICE FORECAST Introduction The Electricity Analysis Office of the California Energy Commission

89

Micro et Nano Physique Cours 1 : les principes de la  

E-Print Network (OSTI)

Micro et Nano Physique (MNP) Cours 1 : les principes de la mécanique quantique (approche conceptuelle) #12;Micro et nano physique (MNP)page 1 Pourquoi un cours sur la physique microscopique ? · Une fondamentaux à la base des technologies du numérique #12;Micro et nano physique (MNP)page 2 Organisation de l

Rioul, Olivier

90

Kernel principal component analysis for stochastic input model generation  

Science Conference Proceedings (OSTI)

Stochastic analysis of random heterogeneous media provides useful information only if realistic input models of the material property variations are used. These input models are often constructed from a set of experimental samples of the underlying random ... Keywords: Data-driven models, Flow in random porous media, Kernel principal component analysis, Non-linear model reduction, Stochastic partial differential equations

Xiang Ma; Nicholas Zabaras

2011-08-01T23:59:59.000Z

91

Comment on ‘‘Hockey sticks, principal components, and spurious significance’’ by  

E-Print Network (OSTI)

McIntyre and McKitrick [2005] (MM05) point out a bias in the Mann et al. [1998] (MBH98) Northern Hemisphere temperature reconstruction, one tending to enhance trends during the last century. Having reproduced the statistical results of MM05, this comment is prompted by further questions regarding appropriate implementation of principal component analysis (PCA) and the presence of discrepancies in their estimate of significance levels. MBH98 use principal component analysis (PCA) to distill the large number of tree ring records (90 % of the total 415 proxy records) into a smaller number of principal components (PCs). MM05 focus on a subset of the data, the seventy North American tree ring records (NOAMER) extending back to AD1400, and show that the MBH98 normalization leads to biases in the leading principal component (PC1). It is in this same step that MM05 use a questionable normalization procedure, making it useful to describe the various normalization conventions in detail. The MBH98 normalization convention for a record, x, is xMBH = (x ? Żx 1902)/? ? 1902, where Żx 1902 and ? 1902 are the mean and standard deviation computed between 1902 and 1980. MBH98 compute the standard deviation after detrending x, indicated as ? ?, an additional step that seems questionable but turns out not to influence the results. Because proxy records span different intervals, it is impossible to both normalize records over a fixed interval and ensure that records are zero-mean over their entire duration. MBH98 presumably chose the 1902 to 1980 normalization period because almost all records span this interval, but which MM05 point out leads to a bias in the results. The reason for the bias in the MBH98 PC1 can be understood by considering that PCA maximizes the variance described by each principal component where variance is measured

P. Huybers; Woods Hole; P. Huybers

2005-01-01T23:59:59.000Z

92

Quantifying the Effect of the Principal-Agent Problem on US Residential Energy Use  

E-Print Network (OSTI)

principal agent (PA) problem, affects energy use in the U.S.the Principal-Agent Problem Site Energy by End Use, TBtu (the Principal-Agent Problem in Energy End-Use The PA problem

Murtishaw, Scott; Sathaye, Jayant

2006-01-01T23:59:59.000Z

93

Statement from U.S. Department Of Energy Acting Principal Deputy...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

U.S. Department Of Energy Acting Principal Deputy Assistant Secretary For Fossil Energy James Slutz Statement from U.S. Department Of Energy Acting Principal Deputy Assistant...

94

IMPROVED SEARCH OF PRINCIPAL COMPONENT ANALYSIS DATABASES FOR SPECTRO-POLARIMETRIC INVERSION  

Science Conference Proceedings (OSTI)

We describe a simple technique for the acceleration of spectro-polarimetric inversions based on principal component analysis (PCA) of Stokes profiles. This technique involves the indexing of the database models based on the sign of the projections (PCA coefficients) of the first few relevant orders of principal components of the four Stokes parameters. In this way, each model in the database can be attributed a distinctive binary number of 2{sup 4n} bits, where n is the number of PCA orders used for the indexing. Each of these binary numbers (indices) identifies a group of ''compatible'' models for the inversion of a given set of observed Stokes profiles sharing the same index. The complete set of the binary numbers so constructed evidently determines a partition of the database. The search of the database for the PCA inversion of spectro-polarimetric data can profit greatly from this indexing. In practical cases it becomes possible to approach the ideal acceleration factor of 2{sup 4n} as compared to the systematic search of a non-indexed database for a traditional PCA inversion. This indexing method relies on the existence of a physical meaning in the sign of the PCA coefficients of a model. For this reason, the presence of model ambiguities and of spectro-polarimetric noise in the observations limits in practice the number n of relevant PCA orders that can be used for the indexing.

Casini, R.; Lites, B. W. [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 (United States); Ramos, A. Asensio [Instituto de Astrofisica de Canarias, c/Via Lactea s/n, E-38205 La Laguna, Tenerife (Spain); Ariste, A. Lopez [THEMIS, CNRS UPS 853, c/Via Lactea s/n, E-38200 La Laguna, Tenerife (Spain)

2013-08-20T23:59:59.000Z

95

Sao Tome and Principe: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Sao Tome and Principe: Energy Resources Sao Tome and Principe: Energy Resources Jump to: navigation, search Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"390px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":1,"lon":7,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

96

Principal Component Neurons in a Realistic Visual Environment  

E-Print Network (OSTI)

The structure of receptive fields in the visual cortex is believed to be shaped by unsupervised learning. It has been shown that several of the forms of stabilized Hebbian (Hebb, 1949) learning rules are governed by the first principal component of the visual environment (Oja, 1982; Miller and MacKay, 1994). In this paper we analyze the form of the principal components of natural images, which have been preprocessed by center surround filters, analogous to those found in the retina. The receptive fields are localized by a small circular boundary. We show that the ratio between the size of the receptive field, and the size of the preprocessing filter, determines the structure of the receptive field. We also show that the receptive field is dependent on the non-rotationally symmetric components of the correlation function. The derivation relies on results about the correlation function of natural images in both the radially symmetric and non symmetric cases. 1 Introduction Ma...

Harel Shouval; Yong Liu

1996-01-01T23:59:59.000Z

97

Topology of Dupin hypersurfaces with six distinct principal curvatures  

E-Print Network (OSTI)

Let M be a Dupin hypersurface in the unit sphere S n+1 with six distinct principal curvatures. The main purpose of the present paper is to show M is either diffeomorphic to SU(2) \\Theta SU(2)=Q 8 or homeomorphic to the tube around an embedded 5dimensional complex Fermat hypersurface X 5 (2) in S 13 , where Q 8 ae SU(2) = Sp(1) denotes the subgroup f\\Sigma1; \\Sigmai; \\Sigmaj; \\Sigmakg and X 5 (2) = f[z 0 ; z 1 ; \\Delta \\Delta \\Delta z 6 ] 2 CP 6 jz 2 0 +z 2 1 + \\Delta \\Delta \\Delta + z 2 6 = 0g. Moreover, in the former case, all of the focal manifolds are diffeomorphic to S 3 \\Theta RP 2 ; In the latter case, one of the focal manifolds is homeomorphic to X 5 (2). 1 Introduction A closed n-dimensional submanifold in the unit sphere S n+1 is called a Dupin hypersurface if the multiplicities of the principal curvatures are constant and if each principal curvature function restricted to the leaves of the distribution T = fxjAx = xg is constant [16]. The most important sp...

Fuquan Fang

1995-01-01T23:59:59.000Z

98

Learning algorithms for online principal-agent problems (and selling goods online)  

Science Conference Proceedings (OSTI)

In a principal-agent problem, a principal seeks to motivate an agent to take a certain action beneficial to the principal, while spending as little as possible on the reward. This is complicated by the fact that the principal does not know the ...

Vincent Conitzer; Nikesh Garera

2006-06-01T23:59:59.000Z

99

Principal Investigators' Meetings | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Principal Principal Investigators' Meetings Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Principal Investigators' Meetings Print Text Size: A A A RSS Feeds FeedbackShare Page Principal Investigators' meetings are Division-sponsored technical meetings of researchers supported by the Division. They are regularly held to present and discuss recent research, evaluate opportunities for inter-project collaboration, exchange scientific ideas among the researchers, and to provide program management the opportunity to assess overall balance across the portfolio and evaluate future research priorities. Principal Investigators' Meetings Reports Materials Discovery, Design, and Synthesis Team

100

Principal Investigators' Meetings | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Principal Principal Investigators' Meetings Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Research Areas Scientific Highlights Reports & Activities Principal Investigators' Meetings BES Home Principal Investigators' Meetings Print Text Size: A A A RSS Feeds FeedbackShare Page Principal Investigators' meetings are Division-sponsored technical meetings of researchers supported by the Division. They are regularly held to present and discuss recent research, evaluate opportunities for inter-project collaboration, exchange scientific ideas among the researchers, and to provide program management the opportunity to assess overall balance across the portfolio and evaluate future research priorities. Principal Investigators' Meetings Reports

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Principal Investigators' Meetings | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Principal Principal Investigators' Meetings Scientific User Facilities (SUF) Division SUF Home About User Facilities Accelerator & Detector Research & Development Principal Investigators' Meetings Scientific Highlights Construction Projects BES Home Principal Investigators' Meetings Print Text Size: A A A RSS Feeds FeedbackShare Page Principal Investigators' meetings are Division-sponsored technical meetings of researchers supported by the Division. They are regularly held to present and discuss recent research, evaluate opportunities for inter-project collaboration, exchange scientific ideas among the researchers, and to provide program management the opportunity to assess overall balance across the portfolio and evaluate future research priorities. Principal Investigators' Meetings Reports

102

Principal considerations in large energy-storage capacitor banks  

SciTech Connect

Capacitor banks storing one or more megajoules and costing more than one million dollars have unique problems not often found in smaller systems. Two large banks, Scyllac at Los Alamos and Shiva at Livermore, are used as models of large, complex systems. Scyllac is a 10-MJ, 60-kV theta-pinch system while Shiva is a 20-MJ, 20-kV energy system for laser flash lamps. A number of design principles are emphasized for expediting the design and construction of large banks. The sensitive features of the charge system, the storage system layout, the switching system, the transmission system, and the design of the principal bank components are presented. Project management and planning must involve a PERT chart with certain common features for all the activities. The importance of the budget is emphasized.

Kemp, E.L.

1976-01-01T23:59:59.000Z

103

Perception of principals in the southern, urban U.S. and eastern, urban China regarding the selection, preparation, and professional development of elementary principals  

E-Print Network (OSTI)

An effective principal is the catalyst for an effective school. For this reason, it is imperative that education stakeholders all over the world become responsible for addressing the selection, preparation and development of principals. The purpose of this study is to explore the similarities and differences in the selection process, preparation programs and the professional development practices as perceived by elementary school principals in urban public schools in the southern U.S and urban public schools in eastern China. The naturalistic paradigm of inquiry was used to frame the study and acquire and analyze data. The sample consisted of fourteen elementary school principals in a southern, urban area in the U.S. and an eastern, urban area in China selected via a purposive sample. The researcher visited their campuses between September, 2004 and January, 2005. Intensive interviews and observations were used to gather information from principals in American and Chinese urban elementary schools. Data from interviews were unitized into categories. Some of the conclusions included: ?? The American respondents indicated that current admission criteria for entrance into educational leadership programs were not sufficient for identifying a candidate??s aptitude for being a successful principal. ?? The Chinese principals believed that most selected Chinese principals are successful school leaders. ?? The American principals were satisfied with the effectiveness of the university preparation programs. ?? The Chinese principals were not satisfied with the effectiveness of classroom instruction of preparation programs. ?? The American principals felt that their professional development programs were helpful for improving their practice and their schools. ?? The Chinese principals were not satisfied with the effectiveness of the professional development programs. ?? Similarities and differences exist between the American and Chinese respondents?? perceptions of selection, preparation, and professional development.

Lin, Jie

2005-08-01T23:59:59.000Z

104

Nonlinear Principal Component Analysis: Tropical Indo–Pacific Sea Surface Temperature and Sea Level Pressure  

Science Conference Proceedings (OSTI)

Nonlinear principal component analysis (NLPCA) is a generalization of traditional principal component analysis (PCA) that allows for the detection and characterization of low-dimensional nonlinear structure in multivariate datasets. The authors ...

Adam Hugh Monahan

2001-01-01T23:59:59.000Z

105

The cost of moral hazard and limited liability in the principal-agent problem  

Science Conference Proceedings (OSTI)

In the classical principal-agent problem, a principal hires an agent to perform a task. The principal cares about the task's output but has no control over it. The agent can perform the task at different effort intensities, and that choice affects the ...

Felipe Balmaceda; Santiago R. Balseiro; Jose R. Correa; Nicolas E. Stier-Moses

2010-12-01T23:59:59.000Z

106

Modulated Hebb-Oja learning Rule-a method for principal subspace analysis  

Science Conference Proceedings (OSTI)

This paper presents analysis of the recently proposed modulated Hebb-Oja (MHO) method that performs linear mapping to a lower-dimensional subspace. Principal component subspace is the method that will be analyzed. Comparing to some other well-known methods ... Keywords: Learning algorithm, neural networks, principal component analysis (PCA), principal subspace analysis (PSA)

M. V. Jankovic; H. Ogawa

2006-03-01T23:59:59.000Z

107

Yearly average performance of the principal solar collector types  

DOE Green Energy (OSTI)

The results of hour-by-hour simulations for 26 meteorological stations are used to derive universal correlations for the yearly total energy that can be delivered by the principal solar collector types: flat plate, evacuated tubes, CPC, single- and dual-axis tracking collectors, and central receiver. The correlations are first- and second-order polynomials in yearly average insolation, latitude, and threshold (= heat loss/optical efficiency). With these correlations, the yearly collectible energy can be found by multiplying the coordinates of a single graph by the collector parameters, which reproduces the results of hour-by-hour simulations with an accuracy (rms error) of 2% for flat plates and 2% to 4% for concentrators. This method can be applied to collectors that operate year-around in such a way that no collected energy is discarded, including photovoltaic systems, solar-augmented industrial process heat systems, and solar thermal power systems. The method is also recommended for rating collectors of different type or manufacturer by yearly average performance, evaluating the effects of collector degradation, the benefits of collector cleaning, and the gains from collector improvements (due to enhanced optical efficiency or decreased heat loss per absorber surface). For most of these applications, the method is accurate enough to replace a system simulation.

Rabl, A.

1981-01-01T23:59:59.000Z

108

Heber geothermal binary demonstration project: Unavailability distributions for principal pumps  

DOE Green Energy (OSTI)

The purpose of this study has been to review data sources relevant to the failure rate and mean time to repair for the principal pumps of the Heber geothermal project. Based upon that review the distributions of failure rates, repair times and pump unavailability were established. A total of 16 pumps are represented in this study. The method used to develop data distributions has been to first review as many sources of pump data as are currently available. This review was followed by a study of the features of the pumps specified for the Heber installation and the effects of operation and the environment on those features as they relate to anticipated failure rates and repair times. From this, determinations were made for mean failure rate and repair time values appropriate to specific Heber pumps. Range factors are then selected and used to establish the expected variability of the data. Failure rates and repair times were then combined to obtain the unavailability distribution of each type of pump.

Mulvihill, Robert J.; Cleveland, Edward B.

1982-04-01T23:59:59.000Z

109

Principal Associate Directorate for Science, Technology, and Engineering (PADSTE)  

E-Print Network (OSTI)

imposed by the transmission of electrical power. Grid Control - develop distributed control techniques Infrastructure: Smart Grids Grid Design - develop efficient and robust integration of geographically distributed, Simulation & Computation (ADTSC) Theorectical (T) Division A partial listing of ISTI Interactions IS&T DATA

110

Educational Triage: A Comparative Study of Two High School Principals in Program Improvement Schools  

E-Print Network (OSTI)

energy to think about triage measures merely as they related to test scores might have been a welcomed problem for Principals Jordan

Garrity, Kyle M.

2013-01-01T23:59:59.000Z

111

A class of learning algorithms for principal component analysis based on time-oriented hierarchical method  

Science Conference Proceedings (OSTI)

This paper presents a class of algorithms for principal component analysis obtained by modification of a class of algorithms for principal subspace analysis (PSA) known as Plumbley's General Stochastic Approximation. Modification of the algorithms is ... Keywords: PCA, PSA, general stochastic approximation, neural networks, time hierarchy

Marko V. Jankovic

2006-04-01T23:59:59.000Z

112

Discovering a term taxonomy from term similarities using principal component analysis  

Science Conference Proceedings (OSTI)

We show that eigenvector decomposition can be used to extract a term taxonomy from a given collection of text documents. So far, methods based on eigenvector decomposition, such as latent semantic indexing (LSI) or principal component analysis ... Keywords: eigenvector decomposition, latent semantic indexing, ontology extraction, principal component analysis, semantic tagging, taxonomy extraction

Holger Bast; Georges Dupret; Debapriyo Majumdar; Benjamin Piwowarski

2005-10-01T23:59:59.000Z

113

Principal Component Analysis Method for Detection and Classification of ECG Beat  

Science Conference Proceedings (OSTI)

This study proposes a simple and effective method, termed Principal Component Analysis (PCA) method, to analyze ECG signals for effectively determining the heartbeat case. This method is easily performed and does not require complex mathematic computations. ... Keywords: ECG signal, Principal Component Analysis (PCA), MIT-BIH database

Yun-Chi Yeh; Tung-Chien Chiang; Hong-Jhih Lin

2011-10-01T23:59:59.000Z

114

Two-stage image denoising by principal component analysis with local pixel grouping  

Science Conference Proceedings (OSTI)

This paper presents an efficient image denoising scheme by using principal component analysis (PCA) with local pixel grouping (LPG). For a better preservation of image local structures, a pixel and its nearest neighbors are modeled as a vector variable, ... Keywords: Denoising, Edge preservation, Principal component analysis (PCA)

Lei Zhang; Weisheng Dong; David Zhang; Guangming Shi

2010-04-01T23:59:59.000Z

115

A Tropical Squall Line Observed during the COPT 81 Experiment in West Africa. Part 1: Kinematic Structure Inferred from Dual-Doppler Radar Data  

Science Conference Proceedings (OSTI)

This paper deals with the analysis of a tropical squall line, observed on 22 June 1981 during the COPT 81 (Convection Profonde Tropicale) experiment. The present Part I is restricted to the study of the kinematic structure of the system, which ...

Michel Chong; Paul Amayenc; Georges Scialom; Jacques Testud

1987-03-01T23:59:59.000Z

116

Comparison between Dual-Doppler and EnKF Storm-Scale Wind Analyses: The 29–30 May 2004 Geary, Oklahoma, Supercell Thunderstorm  

Science Conference Proceedings (OSTI)

Kinematical analyses of storm-scale mobile radar observations are critical to advancing our understanding of supercell thunderstorms. Maximizing the accuracy of these analyses, and characterizing the uncertainty in ensuing conclusions about storm ...

Corey K. Potvin; Louis J. Wicker; Michael I. Biggerstaff; Daniel Betten; Alan Shapiro

2013-05-01T23:59:59.000Z

117

A Cold Frontal Rainband Observed during the LANDES-FRONTS 84 Experiment: Mesoscale and Small-Scale Structure Inferred from Dual-Doppler Radar Analysis.  

Science Conference Proceedings (OSTI)

This paper presents the kinematic structure of a cold frontal rainband associated with a secondary cold front which moved over southwest of France on 4 June 1984.

Y. Lemaitre; G. Scialom; P. Amayenc

1989-07-01T23:59:59.000Z

118

Comparison between Dual-Doppler and EnKF Storm-Scale Wind Analyses: Observing System Simulation Experiments with a Supercell Thunderstorm  

Science Conference Proceedings (OSTI)

Kinematical analyses of mobile radar observations are critical to advancing the understanding of supercell thunderstorms. Maximizing the accuracy of these and subsequent dynamical analyses, and appropriately characterizing the uncertainty in ...

Corey K. Potvin; Louis J. Wicker

2012-12-01T23:59:59.000Z

119

Three-Dimensional Wind Field Analysis from Dual-Doppler Radar Data. Part III: The Boundary Condition: An Optimum Determination Based on a Variational Concept  

Science Conference Proceedings (OSTI)

The choice of the boundary condition when integrating the air mass continuity equation, is a major problem of the 3D wind field analysis from dual (or multiple) Doppler radar data. A zero vertical velocity at ground level seems the most natural ...

M. Chong; J. Testud

1983-07-01T23:59:59.000Z

120

Principal Component Analysis of Vertical Profiles of Q1 and Q2 in the Tropics  

Science Conference Proceedings (OSTI)

Rotated Principal component analysis (PCA) is applied to the combined vertical profiles of apparent heat source Q1 and apparent moisture sink Q2 from both disturbed and undisturbed periods of the Australian summer monsoon season. The data ...

G. David Alexander; George S. Young; David V. Ledvina

1993-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Use of a Principal Components Analysis for the Generation of Daily Time Series  

Science Conference Proceedings (OSTI)

A new approach for generating daily time series is considered in response to the weather-derivatives market. This approach consists of performing a principal components analysis to create independent variables, the values of which are then ...

Christine Dreveton; Yann Guillou

2004-07-01T23:59:59.000Z

122

The ties that bind : Iran and Hamas' principal-agent relationship.  

E-Print Network (OSTI)

??The evolution of the Iran-Hamas relationship can be mapped using Principal-Agent analysis. It is a cost-benefit approach based on rational choice theory. In contrast to… (more)

Thomson, Amy

2012-01-01T23:59:59.000Z

123

Exploring Atmosphere–Ocean Coupling Using Principal Component and Redundancy Analysis  

Science Conference Proceedings (OSTI)

Principal component analysis (PCA), which is designed to look at internal modes of variability, has often been applied beyond its intended design to study coupled modes of variability in combined datasets, also referred to as combined PCA. There ...

Faez Bakalian; Harold Ritchie; Keith Thompson; William Merryfield

2010-09-01T23:59:59.000Z

124

Statistical Aspects of Estimated Principal Vectors (EOFs) Based on small Sample Sizes  

Science Conference Proceedings (OSTI)

Statistical properties of estimated nonisotropic principal vectors [empirical orthogonal functions (EOFs)] are reviewed and discussed. The standard eigenvalue estimator is nonnormally distributed and biased: the largest one becomes overestimated, ...

Hans von Storch; Gerhard Hannoschöck

1985-07-01T23:59:59.000Z

125

Relationships between the Definition of the Hyperplane Width to the Fidelity of Principal Component Loading Patterns  

Science Conference Proceedings (OSTI)

When applying eigenanalysis, one decision analysts make is the determination of what magnitude an eigenvector coefficient (e.g., principal component (PC) loading) must achieve to be considered as physically important. Such coefficients can be ...

Michael B. Richman; Xiaofeng Gong

1999-06-01T23:59:59.000Z

126

Application of Principal Component Analysis to High-Resolution Infrared Measurement Compression and Retrieval  

Science Conference Proceedings (OSTI)

A simulation study is used to demonstrate the application of principal component analysis to both the compression of, and meteorological parameter retrieval from, high-resolution infrared spectra. The study discusses the fundamental aspects of ...

Hung-Lung Huang; Paolo Antonelli

2001-03-01T23:59:59.000Z

127

Principal Component Analysis of Observed and Modeled Diurnal Rainfall in the Maritime Continent  

Science Conference Proceedings (OSTI)

Principal component analysis (PCA) is able to diagnose the diurnal rain cycle in the Maritime Continent into two modes that explain most of the diurnal variability in the region. The first mode results from the differential variation in potential ...

Chee-Kiat Teo; Tieh-Yong Koh; Jeff Chun-Fung Lo; Bhuwan Chandra Bhatt

2011-09-01T23:59:59.000Z

128

Classification of 500 mb Height Anomalies Using Obliquely Rotated Principal Components  

Science Conference Proceedings (OSTI)

The objective of this study was to classify 500 mb height anomaly patterns for North America using principal component analysis with oblique rotation. Two versions of the oblique rotation, oblimax and direct oblimin, were applied to two gridded ...

Stewart J. Cohen

1983-12-01T23:59:59.000Z

129

Principal Engineer  

E-Print Network (OSTI)

Carbon dioxide (CO2) emissions from fossil-fueled power plants contribute to more than one-third of all CO2 emissions in the U.S. [1]. Any effort to curtail greenhouse gases should therefore include the reduction of this emission source. Methods of CO2 reduction include (1) use of alternative fuels with lower CO2 emissions and (2) CO2 scrubbing and sequestration to prevent its release to the atmosphere. The cost of CO2 reduction varies with the selected technology. This paper compares (1) the cost of electricity (COE) without and with CO2 removal/avoidance and (2) the impact of the incremental cost of CO2 reduction on COE for different technology options, including replacing existing coal plants with natural-gas-fired combined cycle (NGCC), integrated gasification combined cycle (IGCC) with and without CO2 removal, pulverized coal (PC) with CO2 scrubber, and nuclear plants. Full and partial compliance with the Kyoto Protocol are addressed.

Ram G. Narula; Harvey Wen; Kenneth Himes; Bechtel Power; Turbo Expo; Ram G. Narula; Bechtel Fellow; Harvey Wen; Kenneth Himes

2002-01-01T23:59:59.000Z

130

Principal Investigators:  

E-Print Network (OSTI)

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency

Volume I; Stewart Clayton; T. L. Buchanan; M. R. Delallo; H. N. Goldstein; G. W. Grubbs; M. D. Rutkowski; H. Weisenfeld Energetics

1999-01-01T23:59:59.000Z

131

Principal Authors  

E-Print Network (OSTI)

Award No. DE-FC26-00NT41005. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the author(s) and do not necessarily reflect the views of the DOE. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury

C. Jean Bustard

2001-01-01T23:59:59.000Z

132

Attachment I: Approval of Agreement-in-Principal with the State of Alaska |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

I: Approval of Agreement-in-Principal with the State of I: Approval of Agreement-in-Principal with the State of Alaska Attachment I: Approval of Agreement-in-Principal with the State of Alaska US Department of Energy Memorandum DATE: January 31, 1995 REPLY TO ATTN OF: EM-22 (C. Smoot, 202/586-2352) SUBJECT: Approval of Agreement-in-Principle with the State of Alaska TO: Manager, Nevada Operations Office Thank you for providing the draft Agreement-in-Principle with the State of Alaska for review and approval. I approve the execution of the Agreement-in-Principle and related grant, contingent on modification of the agreement to reflect the attached comments. Of special note, the agreement should be modified to include (1) language that requires state quarterly performance reporting as part of the grant requirements and (2) language

133

Statement from U.S. Department Of Energy Acting Principal Deputy Assistant  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

from U.S. Department Of Energy Acting Principal Deputy from U.S. Department Of Energy Acting Principal Deputy Assistant Secretary For Fossil Energy James Slutz Statement from U.S. Department Of Energy Acting Principal Deputy Assistant Secretary For Fossil Energy James Slutz November 18, 2007 - 4:44pm Addthis "Clean coal technology is a vital component of the Bush Administration's vision for a cleaner, more secure energy future. FutureGen, which seeks to demonstrate integrated clean coal technologies with carbon capture and sequestration, remains a cornerstone of this vision. "As the Department of Energy (DOE) has discussed with the FutureGen Alliance for the past several months, projected cost overruns require a reassessment of FutureGen's design. Today the Alliance announced its preferred site for FutureGen. DOE has not yet issued the Record of Decision

134

Precipitation over Northern Italy: A Description by Means of Principal component Analysis  

Science Conference Proceedings (OSTI)

Principal component analysis is used to study the rainfall distribution over northern Italy in the cold season (October-April). A spatial analysis is applied to the squares roots of daily data, recorded in 14 months, and of their 3- and 5-day ...

Franco Molteni; Paolo Bonelli; Pietro Bacci

1983-10-01T23:59:59.000Z

135

Volante -Principal A minha vida com o Toyota Prius Plug-In  

E-Print Network (OSTI)

Volante - Principal A minha vida com o Toyota Prius Plug-In Autor: N.D. Editora: Medipress, Lda Id A minha vida com o Toyota Prius Plug-In Autor: N.D. Editora: Medipress, Lda Id: 1633751 Data Publicação

Instituto de Sistemas e Robotica

136

Nonlinear identification of a gasoline HCCI engine using neural networks coupled with principal component analysis  

Science Conference Proceedings (OSTI)

Homogeneous charge compression ignition (HCCI) is a futuristic combustion technology that operates with high efficiency and reduced emissions. HCCI combustion is characterized by complex nonlinear dynamics which necessitates the use of a predictive model ... Keywords: HCCI engine modeling, Multi-layer perceptron, Neural networks, Nonlinear system identification, Principal component analysis, Radial basis network

Vijay Manikandan Janakiraman; Xuanlong Nguyen; Dennis Assanis

2013-05-01T23:59:59.000Z

137

Principal Component Analysis of the Summertime Winds over the Gulf of California: A Gulf Surge Index  

Science Conference Proceedings (OSTI)

A principal component analysis of the summertime near-surface Quick Scatterometer (QuikSCAT) winds is used to identify the leading mode of synoptic-scale variability of the low-level flow along the Gulf of California during the North American ...

Simona Bordoni; Bjorn Stevens

2006-11-01T23:59:59.000Z

138

Principal component analysis of binary data by iterated singular value decomposition  

Science Conference Proceedings (OSTI)

The maximum-likelihood estimates of a principal component analysis on the logit or probit scale are computed using majorization algorithms that iterate a sequence of weighted or unweighted singular value decompositions. The relation with similar methods ... Keywords: Applications to social sciences, Binary data, Factor analysis, Item response models, Multivariate analysis

Jan de Leeuw

2006-01-01T23:59:59.000Z

139

Hydrogen Composite Tank Program Principal Investigator: Dr. Neel Sirosh, Director of Fuel Storage  

E-Print Network (OSTI)

Hydrogen Composite Tank Program Principal Investigator: Dr. Neel Sirosh, Director of Fuel Storage-effective and efficient high-pressure hydrogen storage systems. World's premier automotive OEMs developing fuel cell vehicles have demonstrated significant interest in compressed hydrogen storage systems developed

140

Negative impact of noise on the principal component analysis of NMR data  

E-Print Network (OSTI)

Negative impact of noise on the principal component analysis of NMR data Steven Halouska, Robert (PCA) is routinely applied to the study of NMR based metabolomic data. PCA is used to simplify of metabolites to identify trends or character- istics within the NMR data that permits discrimination between

Powers, Robert

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Principal component analysis based on wavelet characteristics applied to automated surface defect inspection  

Science Conference Proceedings (OSTI)

Automated visual inspection, a crucial manufacturing step, has been replacing the more time-consuming and less accurate human inspection. This research explores automated visual inspection of surface defects in a light-emitting diode (LED) chip. Commonly ... Keywords: hotelling statistic, machine vision system, principal component analysis, surface defect inspection, wavelet characteristics

Hong-Dar Lin; Chung-Yu Chung; Wan-Ting Lin

2008-04-01T23:59:59.000Z

142

Input Feature Extraction for Multilayered Perceptrons Using Supervised Principal Component Analysis  

Science Conference Proceedings (OSTI)

A method is proposed for constructing salient features from a set of features that are given as input to a feedforward neural network used for supervised learning. Combinations of the original features are formed that maximize the sensitivity of ... Keywords: feature extraction, feature selection, multilayered perceptron, principal components, saliency

Stavros J. Perantonis; Vassilis Virvilis

1999-12-01T23:59:59.000Z

143

Principals' distributed leadership behaviors and their impact on student achievement in selected elementary schools in Texas  

E-Print Network (OSTI)

Educators are frequently faced with the challenges of politics, hostility, selfishness, and violence; it is unwise to think that the principal is the only one providing leadership for school improvement. Thus a distributed perspective of leadership urges us to take leadership practice as the focus of interest and address both teachers and administrators as leaders. The purpose of this descriptive statistical study was to explore principals’ leadership practices as perceived by teacher leaders and its possible affect to student achievement. Data were collected by using the Leadership Practices Inventory (LPI) (self and observer) instrument (Kouzes & Posner, 2003) from all willing teacher leaders to determine the leadership practices of the principals in Region VI, Texas. Also, statewide assessment data available from three school years (2004-2006) were obtained from the Academic Excellence Indicator System (AEIS) report. In order to answer research questions one to four, descriptive statistics including frequency, percentage, mean and standard deviation were calculated for the LPI results. The distributed framework offers considerable influence for studying leadership as a schoolwide rather than individual practice. Based on the literature, six conclusions were drawn and recommendations were made regarding practice, future study and policy. First, the findings indicated that principals’ collaborative working style with teacher leaders seems to have positive impact on student achievement. Second, failing to enlist teacher leaders in a common vision might have a negative affect on student academic performance. Third, the perceptions of teacher leaders in School 7, School 5 and School 16 reflected a need for the principal to take challenges and seek challenging opportunities to change and grow. Fourth, recognizing teacher leaders’ contributions and celebrating team accomplishments is likely to have a positive and indirect impact on school academic performance. Fifth, schools that had higher principal self and observer LPI scores tended to have better TAKS scores. Last, the findings from the study complement studies of the effects of site-based management teams. The positive impact of “Enabling Others to Act” and “Inspiring a Shared Vision” on student achievement implies that distributed leadership is most likely to contribute to school improvement and to build school capacity for improvement.

Chen, Yi-Hsuan

2007-08-01T23:59:59.000Z

144

Electron Based Techniques  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Characterization of Materials through High Resolution Coherent Imaging: Electron Based Techniques Sponsored by: TMS Structural Materials ...

145

Milling Techniques - TMS  

Science Conference Proceedings (OSTI)

February 4-8 · 1996 TMS ANNUAL MEETING · Anaheim, California. SYNTHESIS AND PROCESSING OF NANOCRYSTALLINE POWDER III: Milling Techniques ...

146

Women and the high school principalship: metropolitan detroit principals' and superintendents' perceptions regarding barriers and facilitators for job attainment.  

E-Print Network (OSTI)

??WOMEN AND THE HIGH SCHOOL PRINCIPALSHIP: METROPOLITAN DETROIT PRINCIPALS' AND SUPERINTENDENTS' PERCEPTIONS REGARDING BARRIERS AND FACILITATORS FOR JOB ATTAINMENT by HEIDI SCHNABEL KATTULA 2011 Advisor:… (more)

Schnabel Kattula, Heidi

2011-01-01T23:59:59.000Z

147

Teachers' perceptions| Differences in the principals' leadership skills in higher and lower performing high poverty South Carolina middle schools.  

E-Print Network (OSTI)

?? This study was conducted to examine principals’ leadership skills from the perspective of the teachers in schools with high poverty indices. The focus of… (more)

Sinha, Vijju

2009-01-01T23:59:59.000Z

148

Table 4. Principal shale gas plays: natural gas production and proved reserves,  

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

Principal shale gas plays: natural gas production and proved reserves, 2010-2011" Principal shale gas plays: natural gas production and proved reserves, 2010-2011" "trillion cubic feet" ,,, 2010,, 2011,," Change 2011-2010" "Basin","Shale Play","State(s)","Production","Reserves","Production","Reserves","Production","Reserves" "Fort Worth","Barnett","TX",1.9,31,2,32.6,0.1,1.6 "Appalachian","Marcellus","PA, WV, KY, TN, NY, OH",0.5,13.2,1.4,31.9,0.9,18.7 "Texas-Louisiana Salt","Haynesville/Bossier","TX, LA",1.5,24.5,2.5,29.5,1,5 "Arkoma","Fayetteville","AR",0.8,12.5,0.9,14.8,0.1,2.3

149

Principal Investigators: Long-Term Daily and Monthly Climate Records from  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Investigators: Long-Term Daily and Monthly Climate Records from Principal Investigators: Long-Term Daily and Monthly Climate Records from Stations Across the Contiguous United States M.J. Menne, C.N. Williams, Jr., and R.S. Vose National Climatic Data Center National Oceanic and Atmospheric Administration CDIAC and the USHCN PIs encourage users to make this site their main source for obtaining USHCN data, where you can take advantage of data plotting, and, for daily data, user-friendly station-specific downloading. This site will update both daily and monthly data near the beginning of each year, so as to include data through December of the previous year. However, if you need real-time data updates, you should visit the NCDC website. For NCDC-updated daily data please use the Global Historical Climatology Network (GHCN) website where you will find a directory of USHCN stations.

150

Technical Sessions Principal Investigator: S. A. Clough Atmospheric and Environmental Research, Inc.  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Investigator: S. A. Clough Principal Investigator: S. A. Clough Atmospheric and Environmental Research, Inc. Cambridge, MA 02139 Introduction The availability of a rapid highly accurate multiple scattering radiative transfer model is essential to meet the objectives of the Atmospheric Radiation Measurement (ARM) Program. The model must be capable of computing radiance at spectral intervals consistent with the monochromatic spectral variation of the atmospheric molecular absorption. The resolution of the spectrometers to be deployed at the ARM sites, 0.1 cm-1 and less, will provide an important assessment of our capability to perform radiative transfer calculations in the multiply scattered environment. A second important application forthe high-accuracy high-resolution model is to provide parameterizations and validations for

151

Principal electric facilities: Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming  

SciTech Connect

A detailed map is presented covering information to June 30, 1978 on the principal electric facilities in Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming. Utilities are listed by name and type of owner (private, cooperative, municipal, state or territory, Federal, industrial). Individual plants are identified on the map with information on MW capacity and type (steam, nuclear, internal combustion, hydro, combustion turbine, combined cycle) of plant and plant location given in tables. Sites of transmission lines are identified.

1979-01-01T23:59:59.000Z

152

Data-oriented research for bioresource utilization: A case study to investigate water uptake in cellulose using Principal Components  

Science Conference Proceedings (OSTI)

Bioresource utilization represents an important interdisciplinary research that integrates academic and industrial expertise across diverse scientific domains, including physics, chemistry, biology, and engineering. The present paper describes a cyber-infrastructure ... Keywords: Principal component analysis,Laboratories,Loading,Correlation,Data visualization,Materials,Databases,bioethanol,Principal Component Analysis,Scientific workflow,lignocellulose

Roberto M. Cesar, Liu Yi Ling, Carlos Driemeier

2012-10-01T23:59:59.000Z

153

Applied Science/Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Applied Science/Techniques Applied Science/Techniques Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

154

Multicolor Underwater Imaging Techniques.  

E-Print Network (OSTI)

??Studies were conducted on multispectral polarimetric subtraction imaging techniques for underwater imaging that use a broadband light source. The main objective of this study was… (more)

Waggoner, Douglas Scott

2007-01-01T23:59:59.000Z

155

Data Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Data Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Data Techniques Parent Exploration Technique: Data and Modeling Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Data Techniques: The collection, processing, and interpretation of data from various methods so accurate interpretations can be made about the subject matter. Other definitions:Wikipedia Reegle Introduction Data techniques are any technique where data is collected and organized in a manner so that the information is useful for geothermal purposes. The

156

MEMORANDUM FOR DISTRIBUTION FROM: CHARLES E. ANDERSON PRINCIPAL DEPUTY ASSISTANT SECRETARY FOR  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

- - - Washington, DC 20585 April 4 , 2007 MEMORANDUM FOR DISTRIBUTION FROM: CHARLES E. ANDERSON PRINCIPAL DEPUTY ASSISTANT SECRETARY FOR ENVIRONMENTAL MANAGEMENT SUBJECT: Requirements to Coordinate Regulatory Negotiations with the Office of Regulatory Compliance In a memorandum dated December 28,2006, Assistant Secretary Rispoli announced the dissolution of the Office of Environmental Management (EM) Configuration Control Board and . the creation of a new EM Acquisition Advisory Board (EMAAB). In addition to setting forth the matters that now fall within the EMAABYs purview, the December 28,2006, memorandum also made clear that EM will maintain configuration control over, among other things, regulatory decision documents. Accordingly, the relevant Acquisition Executive must approve any

157

Principal Component Analysis of Spectroscopic Imaging Data in Scanning Probe Microscopy  

SciTech Connect

The approach for data analysis in band excitation family of scanning probe microscopies based on principal component analysis (PCA) is explored. PCA utilizes the similarity between spectra within the image to select the relevant response components. For small signal variations within the image, the PCA components coincide with the results of deconvolution using simple harmonic oscillator model. For strong signal variations, the PCA allows effective approach to rapidly process, de-noise and compress the data. The extension of PCA for correlation function analysis is demonstrated. The prospects of PCA as a universal tool for data analysis and representation in multidimensional SPMs are discussed.

Jesse, Stephen [ORNL; Kalinin, Sergei V [ORNL

2009-01-01T23:59:59.000Z

158

An algorithm for the principal component analysis of large data sets  

E-Print Network (OSTI)

Recently popularized randomized methods for principal component analysis (PCA) efficiently and reliably produce nearly optimal accuracy - even on parallel processors - unlike the classical (deterministic) alternatives. We adapt one of these randomized methods for use with data sets that are too large to be stored in random-access memory (RAM). (The traditional terminology is that our procedure works efficiently "out-of-core.") We illustrate the performance of the algorithm via several numerical examples. For example, we report on the PCA of a data set stored on disk that is so large that less than a hundredth of it can fit in our computer's RAM.

Halko, Nathan; Shkolnisky, Yoel; Tygert, Mark

2010-01-01T23:59:59.000Z

159

An autonomous long-term fast reactor system and the principal design limitations of the concept  

E-Print Network (OSTI)

The objectives of this dissertation were to find a principal domain of promising and technologically feasible reactor physics characteristics for a multi-purpose, modular-sized, lead-cooled, fast neutron spectrum reactor fueled with an advanced uranium-transuranic-nitride fuel and to determine the principal limitations for the design of an autonomous long-term multi-purpose fast reactor (ALM-FR) within the principal reactor physics characteristic domain. The objectives were accomplished by producing a conceptual design for an ALM-FR and by analysis of the potential ALM-FR performance characteristics. The ALM-FR design developed in this dissertation is based on the concept of a secure transportable autonomous reactor for hydrogen production (STAR-H2) and represents further refinement of the STAR-H2 concept towards an economical, proliferation-resistant, sustainable, multi-purpose nuclear energy system. The development of the ALM-FR design has been performed considering this reactor within the frame of the concept of a self-consistent nuclear energy system (SCNES) that satisfies virtually all of the requirements for future nuclear energy systems: efficient energy production, safety, self-feeding, non-proliferation, and radionuclide burning. The analysis takes into consideration a wide range of reactor design aspects including selection of technologically feasible fuels and structural materials, core configuration optimization, dynamics and safety of long-term operation on one fuel loading, and nuclear material non-proliferation. Plutonium and higher actinides are considered as essential components of an advanced fuel that maintains long-term operation. Flexibility of the ALM-FR with respect to fuel compositions is demonstrated acknowledging the principal limitations of the long-term burning of plutonium and higher actinides. To ensure consistency and accuracy, the modeling has been performed using state-of-the-art computer codes developed at Argonne National Laboratory. As a result of the computational analysis performed in this work, the ALM-FR design provides for the possibility of continuous operation during about 40 years on one fuel loading containing mixture of depleted uranium with plutonium and higher actinides. All reactor physics characteristics of the ALM-FR are kept within technological limits ensuring safety of ultra-long autonomous operation. The results obtained provide for identification of physical features of the ALM-FR that significantly influence flexibility of the design and its applications. The special emphasis is given to existing limitations on the utilization of higher actinides as a fuel component.

Tsvetkova, Galina Valeryevna

2003-12-01T23:59:59.000Z

160

Contamination Control Techniques  

SciTech Connect

Welcome to a workshop on contamination Control techniques. This work shop is designed for about two hours. Attendee participation is encouraged during the workshop. We will address different topics within contamination control techniques; present processes, products and equipment used here at Hanford and then open the floor to you, the attendees for your input on the topics.

EBY, J.L.

2000-05-16T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Applied Science/Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Applied Science/Techniques Print Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

162

High School Principals' Perceptions of Central Office Administrator Support For Planning, Coordinating, and Evaluating Teaching and the Curriculum  

E-Print Network (OSTI)

This dissertation was designed to gain insight in the area of central office instructional leadership support from the perception of the high school principal. With increasing standards and high student performance expectations coupled with strict federal and state accountability measures, it is impossible for the high school principal to bear the sole responsibility of meeting the needs of their students, staff, and community without further support. Central office is a critical factor in school improvement. The primary aim of this study was to provide insight and a deep understanding how successful high school principals feel supported as the instructional leader specifically in the area of planning, coordinating, and evaluating teaching and the curriculum. The research was guided by a single overarching question: What are high school principal perceptions of support given to them by district central office administrators in the areas of planning, coordinating, and evaluating teaching and the curriculum? Qualitative research was selected for this study to allow for deep and thorough investigation of a small group of high school principals' beliefs regarding the central office administrator instructional leadership support. Interviews were conducted with six successful high school principals from three large school districts. The findings that emerged from the interviews were categorized into eight themes including: the school district focus; instructional leader toolbox; effective use of data; deployment of curriculum and instruction; quality professional development; collaboration; connections; and communication. A synthesis of participants' responses and prior research lead to three overall conclusions: setting high learning expectations; focusing on curriculum and instruction; and establishing district-campus partnerships. Campus principals need assistance in meeting the high standards and challenges they face today. District central office administrators can assist principals become the instructional leader all schools need. This study begins to fill the gap in the literature on how high school principals can be supported by district central office administrators in the areas of planning, coordinating, and evaluating of teaching and the curriculum.

Lawson, Kimberly Kelleher

2011-08-01T23:59:59.000Z

163

A C*-algebra for quantized principal U(1)-connections on globally hyperbolic Lorentzian manifolds  

E-Print Network (OSTI)

The aim of this work is to complete our program on the quantization of connections on arbitrary principal U(1)-bundles over globally hyperbolic Lorentzian manifolds. In particular, we show that one can assign via a covariant functor to any such bundle an algebra of observables which separates gauge equivalence classes of connections. The C*-algebra we construct generalizes the usual CCR-algebras since, contrary to the standard field-theoretic models, it is based on a presymplectic Abelian group instead of a symplectic vector space. We prove a no-go theorem according to which neither this functor, nor any of its quotients, satisfy the strict axioms of general local covariance. Yet, if we fix any principal U(1)-bundle, there exists a suitable category of sub-bundles for which a quotient of our functor yields a quantum field theory in the sense of Haag and Kastler. We shall provide a physical interpretation of this feature and we obtain some new insights concerning electric charges in locally covariant quantum field theory.

Marco Benini; Claudio Dappiaggi; Thomas-Paul Hack; Alexander Schenkel

2013-07-11T23:59:59.000Z

164

Electrical Techniques | Open Energy Information  

Open Energy Info (EERE)

Electrical Techniques Electrical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electrical Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png Electrical Techniques: Electrical techniques aim to image the electrical resistivity of the

165

Geochemical Techniques | Open Energy Information  

Open Energy Info (EERE)

Geochemical Techniques Geochemical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geochemical Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geochemical Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Geochemical Techniques: No definition has been provided for this term. Add a Definition Related Techniques Geochemical Techniques Geochemical Data Analysis Geothermometry Gas Geothermometry Isotope Geothermometry Liquid Geothermometry Cation Geothermometers Multicomponent Geothermometers Silica Geothermometers Thermal Ion Dispersion

166

Photovoltaic I-V curve measurement techniques  

SciTech Connect

Performance evaluation of photovoltaic (PV) arrays under actual field conditions provides important feedback to the module design process. One of the principal methods for assessing an array's performance is to plot its current, I, versus voltage, V, curve. Following a brief review of techniques for measuring the I-V curve, a new, capacitive-based approach is presented. It uses a rapid sweep of the I-V curve that substantially reduces the average power transfer between array and load, and in turn, substantially reduces the size and weight of the curve tracer. Both theoretical and practical aspects of the approach are presented for a 10-kW unit. Performance is verified by comparison with I-V curves obtained by using a conventional load. The agreement is found to be excellent. Approximately an order of magnitude reduction in size, weight and power consumption over conventional units was realized with the experimental I-V curve tracer.

Cox, C.H.; Warner, T.H.

1982-08-01T23:59:59.000Z

167

Using Structured Interviewing Techniques  

E-Print Network (OSTI)

GAO assists congressional decisionmakers in their deliberative process by furnishing analytical information on issues and options under consideration. Many diverse methodologies are needed to develop sound and timely answers to the questions that are posed by the Congress. To provide GAO evaluators with basic information about the more commonly used methodologies, GAO’s policy guidance includes documents such as methodology transfer papers and technical guidelines, This methodology transfer paper on using structured interviewing techniques discusses how GAO evaluators should incorporate structured interview techniques when appropriate to performing our work. It explains when these techniques should be

Gao/pemd-. Preface; Werner Grosshans

1991-01-01T23:59:59.000Z

168

Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

Downhole Techniques Downhole Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Downhole Techniques Details Activities (0) Areas (0) Regions (0) NEPA(7) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Determination of lithology, grain size Stratigraphic/Structural: Thickness and geometry of rock strata, fracture identification Hydrological: Porosity, permeability, water saturation Thermal: Formation temperature with depth Dictionary.png Downhole Techniques: Downhole techniques are measurements collected from a borehole environment which provide information regarding the character of formations and fluids

169

Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Geophysical Techniques Geophysical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geophysical Techniques Details Activities (2) Areas (1) Regions (0) NEPA(4) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: may be inferred Stratigraphic/Structural: may be inferred Hydrological: may be inferred Thermal: may be inferred Dictionary.png Geophysical Techniques: Geophysics is the study of the structure and composition of the earth's interior. Other definitions:Wikipedia Reegle Introduction Geophysical techniques measure physical phenomena of the earth such as gravity, magnetism, elastic waves, electrical and electromagnetic waves.

170

Magnetotelluric Techniques | Open Energy Information  

Open Energy Info (EERE)

Magnetotelluric Techniques Magnetotelluric Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Magnetotelluric Techniques Details Activities (0) Areas (0) Regions (0) NEPA(2) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Sounding Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png Magnetotelluric Techniques:

171

A Rotated Principal Component Analysis of the Interannual Variability of the Northern Hemisphere 500 mb Height Field  

Science Conference Proceedings (OSTI)

The principal components derived by Wallace and Gutzler (1981) from a 500 mb height data set are linearly transformed using the varimax method. Their data set consists of 45 winter months of National Meteorological Center analyses of Northern ...

John D. Horel

1981-10-01T23:59:59.000Z

172

Principal Component Image Analysis of MODIS for Volcanic Ash. Part II: Simulation of Current GOES and GOES-M Imagers  

Science Conference Proceedings (OSTI)

In Part I of this paper the infrared bands of the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed using principal component image analysis for volcanic ash signals. The analyses performed determined that several of the thermal ...

Donald W. Hillger; James D. Clark

2002-10-01T23:59:59.000Z

173

Principal Component Image Analysis of MODIS for Volcanic Ash. Part I: Most Important Bands and Implications for Future GOES Imagers  

Science Conference Proceedings (OSTI)

In Part I of this paper, the infrared bands of the Moderate Resolution Imaging Spectroradiometer (MODIS) are analyzed for volcanic ash signals using principal component image analysis. Target volcanoes included Popocatepetl volcano near Mexico ...

Donald W. Hillger; James D. Clark

2002-10-01T23:59:59.000Z

174

A Study of Baroclinic Wave Behavior over Bottom Topography Using Complex Principal Component Analysis of Experimental Data  

Science Conference Proceedings (OSTI)

Complex principal component analysis is applied to data from three laboratory experiments of flow over two-wave sinusoidal bottom topography in a thermally driven, rotating annulus of fluid. The experiments are conducted at the same imposed ...

Richard L. Pfeffer; Jon Ahlquist; Robin Kung; Yehui Chang; Guoqing Li

1990-01-01T23:59:59.000Z

175

Deepwater Horizon Oil Spill Principal Investigator (PI) Conference Sponsored by the NSTC SOST, hosted by the University of South Florida  

E-Print Network (OSTI)

Deepwater Horizon Oil Spill Principal Investigator (PI) Conference Sponsored Ballroom · Oil/dispersant - extent and fate Tom Ryerson, National Oceanic and Atmospheric Administration · Oil/dispersant - impacts and mitigation in coastal

Meyers, Steven D.

176

Principal Modes of Atmospheric Variability in Model Atmospheres with and without Anomalous Sea Surface Temperature Forcing in the Tropical Pacific  

Science Conference Proceedings (OSTI)

Principal modes of low-frequency atmospheric variability and the influence of sea surface temperature anomalies on such modes are investigated by examining the output from two general circulation model experiments. In the first experiment (the “...

In-Sik Kang; Ngar-Cheung Lau

1986-11-01T23:59:59.000Z

177

Program Evaluation and Incentives for Administrators of Energy-Efficiency Programs: Can Evaluation Solve the Principal/Agent Problem?  

E-Print Network (OSTI)

effectiveness (the non-energy benefits problem) “All cost-energy- efficiency programs and, especially, the free-rider problem,Energy-Efficiency Programs: Can Evaluation Solve the Principal/Agent Problem?

Blumstein, Carl

2009-01-01T23:59:59.000Z

178

The variable X-ray spectrum of Markarian 766 - I. Principal components analysis  

E-Print Network (OSTI)

Aims: We analyse a long XMM-Newton spectrum of the narrow-line Seyfert 1 galaxy Mrk 766, using the marked spectral variability on timescales >20ks to separate components in the X-ray spectrum. Methods: Principal components analysis is used to identify distinct emission components in the X-ray spectrum, possible alternative physical models for those components are then compared statistically. Results: The source spectral variability is well-explained by additive variations, with smaller extra contributions most likely arising from variable absorption. The principal varying component, eigenvector one, is found to have a steep (photon index 2.4) power-law shape, affected by a low column of ionised absorption that leads to the appearance of a soft excess. Eigenvector one varies by a factor 10 in amplitude on time-scales of days and appears to have broad ionised Fe K-alpha emission associated with it: the width of the ionised line is consistent with an origin at about 100 gravitational radii. There is also a strong component of near-constant emission that dominates in the low state, whose spectrum is extremely hard above 1 keV, with a soft excess at lower energies, and with a strong edge at Fe K but remarkably little Fe K-alpha emission. Although this component may be explained as relativistically-blurred reflection from the inner accretion disc, we suggest that its spectrum and lack of variability may alternatively be explained as either (i) ionised reflection from an extended region, possibly a disc wind, or (ii) a signature of absorption by a disc wind with a variable covering fraction. Absorption features in the low state may indicate the presence of an outflow.

L. Miller; T. J. Turner; J. N. Reeves; I. M. George; S. B. Kraemer; B. Wingert

2006-11-21T23:59:59.000Z

179

Table 4. Principal shale gas plays: natural gas production and proved reserves, 2010-1011  

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

Principal shale gas plays: natural gas production and proved reserves, 2010-2011 Principal shale gas plays: natural gas production and proved reserves, 2010-2011 trillion cubic feet Basin Shale Play State(s) Production Reserves Production Reserves Production Reserves Fort Worth Barnett TX 1.9 31.0 2.0 32.6 0.1 1.6 Appalachian Marcellus PA, WV, KY, TN, NY, OH 0.5 13.2 1.4 31.9 0.9 18.7 Texas-Louisiana Salt Haynesville/Bossier TX, LA 1.5 24.5 2.5 29.5 1.0 5.0 Arkoma Fayetteville AR 0.8 12.5 0.9 14.8 0.1 2.3 Anadarko Woodford TX, OK 0.4 9.7 0.5 10.8 0.1 1.1 Western Gulf Eagle Ford TX 0.1 2.5 0.4 8.4 0.3 5.9 Sub-total 5.2 93.4 7.7 128.0 2.5 34.6 Other shale gas plays 0.2 4.0 0.3 3.6 0.1 -0.4 All U.S. Shale Plays 5.4 97.4 8.0 131.6 2.6 34.2 Change 2011-2010 2010 2011 Notes: Some columns may not add up to its subtotal because of independent rounding. Natural gas is wet after lease separation. The above table is

180

Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Seismic Techniques Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(10) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

Modeling Techniques Modeling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Modeling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Modeling Techniques Parent Exploration Technique: Data and Modeling Techniques Information Provided by Technique Lithology: Rock types, rock chemistry, stratigraphic layer organization Stratigraphic/Structural: Stress fields and magnitudes, location and shape of permeable and non-permeable structures, faults, fracture patterns Hydrological: Visualization and prediction of the flow patterns and characteristics of geothermal fluids, hydrothermal fluid flow characteristics, up-flow patterns

182

Statistical and systematic errors for gravitational-wave inspiral signals: A principal component analysis  

E-Print Network (OSTI)

Identifying the source parameters from a gravitational-wave measurement alone is limited by our ability to discriminate signals from different sources and the accuracy of the waveform family employed in the search. Here we address both issues in the framework of an adapted coordinate system that allows for linear Fisher-matrix type calculations of waveform differences that are both accurate and computationally very efficient. We investigate statistical errors by using principal component analysis of the post-Newtonian (PN) expansion coefficients, which is well conditioned despite the Fisher matrix becoming ill conditioned for larger numbers of parameters. We identify which combinations of physical parameters are most effectively measured by gravitational-wave detectors for systems of neutron stars and black holes with aligned spin. We confirm the expectation that the dominant parameter of the inspiral waveform is the chirp mass. The next dominant parameter depends on a combination of the spin and the symmetric mass ratio. In addition, we can study the systematic effect of various spin contributions to the PN phasing within the same parametrization, showing that the inclusion of spin-orbit corrections up to next-to-leading order, but not necessarily of spin-spin contributions, is crucial for an accurate inspiral waveform model. This understanding of the waveform structure throughout the parameter space is important to set up an efficient search strategy and correctly interpret future gravitational-wave observations.

Frank Ohme; Alex B. Nielsen; Drew Keppel; Andrew Lundgren

2013-04-25T23:59:59.000Z

183

Quantifying the Effect of the Principal-Agent Problem on USResidential Energy Use  

SciTech Connect

The International Energy Agency (IEA) initiated andcoordinated this project to investigate the effects of market failures inthe end-use of energy that may isolate some markets or portions thereoffrom energy price signals in five member countries. Quantifying theamount of energy associated with market failures helps to demonstrate thesignificance of energy efficiency policies beyond price signals. In thisreport we investigate the magnitude of the principal-agent (PA) problemaffecting four of the major energy end uses in the U.S. residentialsector: refrigeration, water heating, space heating, and lighting. Usingdata from the American Housing Survey, we develop a novel approach toclassifying households into a PA matrix for each end use. End use energyvalues differentiated by housing unit type from the Residential EnergyConsumption Survey were used to estimate the final and primary energy useassociated with the PA problem. We find that the 2003 associated siteenergy use from these four end uses totaled over 3,400 trillion Btu,equal to 35 percent of the site energy consumed by the residentialsector.

Murtishaw, Scott; Sathaye, Jayant

2006-08-12T23:59:59.000Z

184

Resin infiltration transfer technique  

DOE Patents (OSTI)

A process has been developed for fabricating composite structures using either reaction forming or polymer infiltration and pyrolysis techniques to densify the composite matrix. The matrix and reinforcement materials of choice can include, but are not limited to, silicon carbide (SiC) and zirconium carbide (ZrC). The novel process can be used to fabricate complex, net-shape or near-net shape, high-quality ceramic composites with a crack-free matrix.

Miller, David V. (Pittsburgh, PA); Baranwal, Rita (Glenshaw, PA)

2009-12-08T23:59:59.000Z

185

Technique Subgroupings Spectroscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

and NSLS-II beamlines according to DOE Technique Scheme and NSLS-II beamlines according to DOE Technique Scheme Technique Subgroupings Spectroscopy 01 - Low Energy Spectroscopy Infrared Photoemission U12IR, U4IR / MET* U5UA, U13 / ESM 02 - Soft X-Ray Spectroscopy Soft X-ray Spectroscopy Tender XAS U4B, U7A, X24A / SST, SSS* X15B, X19A / TES* 03 - Hard X-ray Spectroscopy EXAFS X3A, X3B, X11A, X11B, X18A, X18B, X23A2 / ISS, BMM, QAS*, XAS* 04 - Optics/Calibration/Metrology U3C,X8A/ OFT,MID Scattering 05 X-ray Diffraction X-Ray Powder Diffraction Extreme Conditions Energy Dispersive Micro-Beam Diffraction X7B,X10B,X14A,X16C,X17A / XPD,IXD* X17B2,X17B3,X17C / XPD, TEC*, 4DE* X17B1, X17B2 / NA X13B / MXD* 06 MX, footprinting Protein Crystallography X-ray footprinting X4A, X4C, X6A, X12B, X12C, X25, X29 / FMX, AMX, NYX;

186

Drilling Techniques | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Drilling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Drilling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(20) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates

187

Techniques for Measuring Residual Stresses  

Science Conference Proceedings (OSTI)

Table 1   Classification of techniques for measuring residual stress...stress A-1 Stress-relaxation techniques using electric

188

Techniques for Measuring Residual Stresses  

Science Conference Proceedings (OSTI)

Table 1   Classification of techniques for measuring residual stress...stress A-1 Stress relaxation techniques using electric

189

Category:Gravity Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques page? For detailed information on Gravity Techniques, click here. Category:Gravity Techniques Add.png Add a new Gravity Techniques Technique Pages in category "Gravity...

190

Characterization of the TEXTOR plasma edge using deposition probe techniques  

DOE Green Energy (OSTI)

Carbon and single crystal silicon passive deposition probes were used to measure the characteristics of the plasma edge region of the TEXTOR tokamak. Analysis of the probes was done by Rutherford backscattering for impurities and nuclear reaction analysis and elastic recoil detection for hydrogen isotopes. Plasma fluxes and energies in the edge were measured using these techniques. The principal impurities in the plasma edge were determined and their behavior as a function of time and position was measured. Measurements were also made of in situ erosion rates. The results are compared with independent measurements of other plasma parameters to study possible impurity introduction mechanisms.

Zuhr, R.A.

1984-04-01T23:59:59.000Z

191

Magnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Magnetic Techniques Magnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Magnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Magnetic Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Presence of magnetic minerals such as magnetite. Stratigraphic/Structural: Mapping of basement structures, horst blocks, fault systems, fracture zones, dykes and intrusions. Hydrological: The circulation of hydrothermal fluid may impact the magnetic susceptibility of rocks. Thermal: Rocks lose their magnetic properties at the Curie temperature (580° C for magnetite) [1] and, upon cooling, remagnetize in the present magnetic field orientation. The Curie point depth in the subsurface may be determined in a magnetic survey to provide information about hydrothermal activity in a region.

192

Gravity Techniques | Open Energy Information  

Open Energy Info (EERE)

Gravity Techniques Gravity Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Gravity Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Gravity Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Distribution of density in the subsurface enables inference of rock type. Stratigraphic/Structural: Delineation of steeply dipping formations, geological discontinuities and faults, intrusions and the deposition of silicates due to hydrothermal activity. Hydrological: Density of sedimentary rocks are strongly influenced by fluid contained within pore space. Dry bulk density refers to the rock with no moisture, while the wet bulk density accounts for water saturation; fluid content may alter density by up to 30%.(Sharma, 1997)

193

Algae Biofuels and Future Engineers Kimberley Ogden is UAs principal investigator on a $44million DOE biofuels  

E-Print Network (OSTI)

Algae Biofuels and Future Engineers Kimberley Ogden is UAs principal investigator on a $44million DOE biofuels project and an NSF-funded STEM educator. The National Alliance for Advanced Biofuels totaling more than $44 million for algal Biofuels And bio products research and development. Kim Ogden

Wong, Pak Kin

194

The Role of an Elementary School Principal in the Retention of Novice Teachers: A Micropolitical Case Study  

E-Print Network (OSTI)

Teachers are leaving the education profession at alarming rates and the attrition of teachers has become a serious issue for many schools and districts around the country. The purpose of this study was to investigate the retention and attrition patterns in one elementary school through the lens of micropolitical theory; in particular, principal decision-making processes, leadership activities, and the relationship between principal and teachers were studied. This qualitative, single case exploration included classroom observations, document analysis, and focus group and individual interviews with one principal, seven novice teachers, and one lead mentor. The data was analyzed using categorical aggregation and a constant comparative analysis. Study findings provided evidence that a negative micropolitical state was present at the school under study, including an absence of shared values and goals, lack of positive interpersonal relations, and lack of collegiality, all of which served to discourage the growth of novice teachers as developing professionals. Teacher perceptions revealed that they were less than satisfied with their chosen profession, particularly lacking contentment with the principal leadership.

Greninger, Elizabeth Ann

2012-05-01T23:59:59.000Z

195

Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(5) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water

196

Field Techniques | Open Energy Information  

Open Energy Info (EERE)

Field Techniques Field Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Map surface geology and hydrothermal alteration. Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Bulk and trace element analysis of rocks, minerals, and sediments. Identify and document surface geology and mineralogy. Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Locates active faults in the area of interest. Map fault and fracture patterns, kinematic information. Can reveal relatively high permeability zones. Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting.

197

Videogrammetric Model Deformation Measurement Technique  

Science Conference Proceedings (OSTI)

The theory, methods, and applications of the videogrammetric model deformation (VMD) measurement technique used at NASA for wind tunnel testing are presented. The VMD technique, based on non-topographic photogrammetry, can determine static and dynamic ...

Burner A. W.; Liu Tianshu

2001-07-01T23:59:59.000Z

198

Diagnostics Techniques of Power Transformer  

Science Conference Proceedings (OSTI)

This paper provides the information on the diagnostics techniques for condition monitoring of power transformer (PT). This paper deals with the practical importance of the transformer diagnostic in the Electrical Engineering field. A review has been ... Keywords: temperature, condition monitoring, diagnostics methods, paper analysis techniques, oil analysis techniques

Piush Verma; Y. R. Sood; Jashandeep Singh

2009-12-01T23:59:59.000Z

199

Techniques in Broadband Interferometry  

SciTech Connect

This is a compilation of my patents issued from 1997 to 2002, generally describing interferometer techniques that modify the coherence properties of broad-bandwidth light and other waves, with applications to Doppler velocimetry, range finding, imaging and spectroscopy. Patents are tedious to read in their original form. In an effort to improve their readability I have embedded the Figures throughout the manuscript, put the Figure captions underneath the Figures, and added section headings. Otherwise I have resisted the temptation to modify the words, though I found many places which could use healthy editing. There may be minor differences with the official versions issued by the US Patent and Trademark Office, particularly in the claims sections. In my shock physics work I measured the velocities of targets impacted by flyer plates by illuminating them with laser light and analyzing the reflected light with an interferometer. Small wavelength changes caused by the target motion (Doppler effect) were converted into fringe shifts by the interferometer. Lasers having long coherence lengths were required for the illumination. While lasers are certainly bright sources, and their collimated beams are convenient to work with, they are expensive. Particularly if one needs to illuminate a wide surface area, then large amounts of power are needed. Orders of magnitude more power per dollar can be obtained from a simple flashlamp, or for that matter, a 50 cent light bulb. Yet these inexpensive sources cannot practically be used for Doppler velocimetry because their coherence length is extremely short, i.e. their bandwidth is much too wide. Hence the motivation for patents 1 & 2 is a method (White Light Velocimetry) for allowing use of these powerful but incoherent lamps for interferometry. The coherence of the illumination is modified by passing it through a preparatory interferometer.

Erskine, D J

2004-01-04T23:59:59.000Z

200

Dose Reduction Techniques  

SciTech Connect

As radiation safety specialists, one of the things we are required to do is evaluate tools, equipment, materials and work practices and decide whether the use of these products or work practices will reduce radiation dose or risk to the environment. There is a tendency for many workers that work with radioactive material to accomplish radiological work the same way they have always done it rather than look for new technology or change their work practices. New technology is being developed all the time that can make radiological work easier and result in less radiation dose to the worker or reduce the possibility that contamination will be spread to the environment. As we discuss the various tools and techniques that reduce radiation dose, keep in mind that the radiological controls should be reasonable. We can not always get the dose to zero, so we must try to accomplish the work efficiently and cost-effectively. There are times we may have to accept there is only so much you can do. The goal is to do the smart things that protect the worker but do not hinder him while the task is being accomplished. In addition, we should not demand that large amounts of money be spent for equipment that has marginal value in order to save a few millirem. We have broken the handout into sections that should simplify the presentation. Time, distance, shielding, and source reduction are methods used to reduce dose and are covered in Part I on work execution. We then look at operational considerations, radiological design parameters, and discuss the characteristics of personnel who deal with ALARA. This handout should give you an overview of what it takes to have an effective dose reduction program.

WAGGONER, L.O.

2000-05-16T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

The Heat Budget of a Midlatitude Squall Line and Implications for Potential Vorticity Production  

Science Conference Proceedings (OSTI)

The water and heat budgets for a midlatitude squall line are estimated from single- and dual-Doppler-radar data and thermodynamic data from rawinsonde and thermodynamic retrieval (from dual-Doppler winds). These data, along with models to ...

Scott A. Braun; Robert A. Houze Jr.

1996-05-01T23:59:59.000Z

202

Feasibility Test of an Airborne Pulse-Doppler Meteorological Radar  

Science Conference Proceedings (OSTI)

A vertically scanning, airborne, pulse-Doppler radar is described. Data processing methods to yield pseudo-dual-Doppler horizontal winds are presented. Results of an intercomparison with a ground-based dual-Doppler network are presented and ...

David P. Jorgensen; Peter H. Hildebrand; Charles L. Frush

1983-05-01T23:59:59.000Z

203

Animation of JILA Frequency Comb Spectroscopy Technique  

Science Conference Proceedings (OSTI)

Animation of JILA Frequency Comb Spectroscopy Technique. The new JILA "frequency comb spectroscopy" technique ...

2012-08-17T23:59:59.000Z

204

Formation Testing Techniques | Open Energy Information  

Open Energy Info (EERE)

Formation Testing Techniques Formation Testing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Formation Testing Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Formation Testing Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Formation Testing Techniques: No definition has been provided for this term. Add a Definition References No exploration activities found. Print PDF Retrieved from "http://en.openei.org/w/index.php?title=Formation_Testing_Techniques&oldid=601973" Categories: Downhole Techniques Exploration Techniques

205

Thermal Interaction Between Molten Metal Jet and Sodium Pool: Effect of Principal Factors Governing Fragmentation of the Jet  

SciTech Connect

To clarify the effects of the principal factors that govern the thermal fragmentation of a molten metallic fuel jet in the course of fuel-coolant interaction, which is important in evaluating the sequence of core disruptive accidents (CDAs) for metallic fuel fast reactors, basic experiments were carried out using molten metallic fuel simulants (copper and silver) and a sodium pool.Fragmentation of a molten metal jet with a solid crust was caused by internal pressure produced by the boiling of sodium, which is locally entrapped inside the jet due to hydrodynamic motion between the jet and the coolant. The superheating and the latent heat of fusion of the jet are the principal factors governing this type of thermal fragmentation. On the other hand, the effect of the initial sodium temperature is regarded as negligible in the case of thermal conditions expected to result in CDAs for practical metallic fuel cores. Based on the fragmentation data for several kinds of jets (Cu, Ag, SUS, U, and U-5 wt% Zr alloy), an empirical correlation is proposed that is applicable to the calculation of a mass median diameter of fragments produced by the thermal fragmentation of the jet with a solid crust under low ambient Weber number conditions.

Nishimura, Satoshi [Central Research Institute of Electric Power Industry (CRIEPI) (Japan); Kinoshita, Izumi [Central Research Institute of Electric Power Industry (CRIEPI) (Japan); Sugiyama, Ken-Ichiro [Hokkaido University (Japan); Ueda, Nobuyuki [Central Research Institute of Electric Power Industry (CRIEPI) (Japan)

2005-02-15T23:59:59.000Z

206

Category:Data Techniques | Open Energy Information  

Open Energy Info (EERE)

Data Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Data Techniques page? For detailed information on Data Techniques...

207

Category:Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

2 subcategories, out of 2 total. A Active Seismic Techniques 2 pages P Passive Seismic Techniques 2 pages Pages in category "Seismic Techniques" The following 2...

208

Definition: Electrical Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Jump to: navigation, search Dictionary.png Electrical Techniques Electrical techniques aim to image the electrical resistivity of the subsurface through the measurement...

209

Twistor inspired techniques in QCD  

Science Conference Proceedings (OSTI)

I present a short review of the new twistor inspired techniques in perturbative QCD, which are the result of Witten's conjecture of a duality between twistors and string theory. I give an introduction to the main two tree-level techniques, the BCFW recursion and the CSW formalism, and show how the idea of using on-shell QCD amplitudes evaluated for complex momenta can lead to efficient techniques to perform analytic computations. Finally, I briefly discuss how these ideas can be applied to loop calculations if they are combined to the generalized unitarity approach.

Duhr, C. [Center for Particle Physics and Phenomenology (CP3), Universite catholique de Louvain, B-1348 Louvain-la-Neuve (Belgium)

2008-08-29T23:59:59.000Z

210

Tools & Techniques for Failure Analysis  

Science Conference Proceedings (OSTI)

Oct 31, 2013 ... Failure Analysis and Prevention: Tools & Techniques for Failure ... As lithium-ion battery technology continues to advance and is adopted in diverse markets, ... fracture origin and an understanding of the fracture event energy.

211

Practical Considerations in the Use of Rotated Principal Component Analysis (RPCA)in Diagnostic Studies of Upper-Air Height Fields  

Science Conference Proceedings (OSTI)

Rotated principal component analysis (RPCA) is a powerful tool for studying upper air height data because of its ability to distill information about the variance existing in a large number of maps to a much smaller set of physically meaningful ...

Edward A. O'Lenic; Robert E. Livezey

1988-08-01T23:59:59.000Z

212

A Study of a Retrieval Method for Temperature and Humidity Profiles from Microwave Radiometer Observations Based on Principal Component Analysis and Stepwise Regression  

Science Conference Proceedings (OSTI)

This paper discusses the application of principal component analysis and stepwise regression in the retrieval of vertical profiles of temperature and humidity based on the measurements of a 35-channel microwave radiometer. It uses the radiosonde ...

Haobo Tan; Jietai Mao; Huanhuan Chen; P. W. Chan; Dui Wu; Fei Li; Tao Deng

2011-03-01T23:59:59.000Z

213

Well Log Techniques | Open Energy Information  

Open Energy Info (EERE)

Well Log Techniques Well Log Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Well Log Techniques Details Activities (4) Areas (4) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Log Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: depth and thickness of formations; lithology and porosity can be inferred Stratigraphic/Structural: reservoir thickness, reservoir geometry, borehole geometry Hydrological: permeability and fluid composition can be inferred Thermal: direct temperature measurements; thermal conductivity and heat capacity Dictionary.png Well Log Techniques: Well logging is the measurement of formation properties versus depth in a

214

A Case Study of Principal Leadership in the Practice of Multicultural Education in High-Achieving Schools Serving Hispanic Students in South Texas  

E-Print Network (OSTI)

The primary purpose of this qualitative study was to explore the educational experiences and leadership behaviors of five South Texas high school principals, in the context of the practice of multicultural education and Hispanic student achievement. Through the recounting of the principals’ personal stories, experiences, and artifacts, several themes emerged in the analyses of the data collected for this study: multicultural education, effective schools, and culturally Responsive Leadership. Subthemes for the study included high expectations, collaboration, relationships, empowering school culture, equity pedagogy, communication, vision for success, Hispanic principal leadership, and Hispanic student achievement. Findings for the study further revealed that: 1. Each of the five principals articulated, supported, and fostered a culture of high expectations. 2. Collaboration, among staff, students, and the extended learning community, was a designated priority in these high-performing schools. 3. Principals in each of the five high schools understood the significant value of developing, nurturing, and maintaining productive, caring relationships. 4. Principals understood the value of creating a school culture that empowered students and staff to aspire toward quality teaching and learning. 5. Principals understood and worked vehemently to provide equity pedagogy which addressed the needs of all students. 6. Principals understood the power of varied forms of communication in shaping and supporting the mission of their schools. 7. Principals in these high-performing schools developed and steadfastly articulated a clear vision of success for their schools. 8. Hispanic principals provided unique, relevant, and effective leadership in support of their Hispanic students. 9. Neither school/community demographics nor socioeconomic status determined the potential for Hispanic student success in each of the schools led by the study’s participants. While each of the principals in this study used a variety of means to create and support learning environments conducive to all students, each assumed personal responsibility for the success of his/her students, and each worked to empower their Hispanic students through his/her own personal histories and experiences. Thus, the significance of this study lies in the potential to impact Hispanic student achievement by developing school leaders and creating school structures that support culturally diverse students.

Rios, Sylvia 1954-

2012-12-01T23:59:59.000Z

215

Principal Components of Multi-Frequency Microwave Land Surface Emissivities. Part 2: Effects of Previous-Time Precipitation  

Science Conference Proceedings (OSTI)

The microwave land surface emissivity (MLSE) over the continental United States was examined during 2011 as a function of previous rainfall conditions using two independent emissivity estimation techniques, one providing instantaneous estimates ...

Yalei You; F. Joseph Turk; Ziad S. Haddad; Li Li; Guosheng Liu

216

Principal Investigators | Biosciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

R. Michael Miller R. Michael Miller BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne R. Michael Miller Bldg: 203 Room: E161 9700 South Cass Avenue Argonne, Illinois 60439 Email: rmmiller@anl.gov Phone: (630) 252-3395 Fax: (630) 252-8895 Research Highlights Publications > Education: 1975 Ph.D., Illinois State University, Botany and Mycology 1971 M.S., Illinois State University, Biological Sciences 1969 B.S., Colorado State University, Botany > Professional Experience: 2005-current Senior Terrestrial Ecologist, Biosciences Division, Argonne National Laboratory 2007-current Senior Fellow, Institute for Genomic & Systems Biology, University of Chicago and Argonne National Laboratory 2006-2008

217

Principal Investigators | Biosciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Julie D. Jastrow BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne Julie D. Jastrow...

218

Principal Investigators | Biosciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Roser Matamala BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne Roser Matamala Bldg:...

219

Principal Author: Contributing Authors:  

E-Print Network (OSTI)

cost benefit analysis of green building ever conducted. It demonstrates conclusively that sustainable building is a cost-effective investment, and its findings should encourage communities across the country to “build green.” In August 2000, Governor Davis issued Executive Order D-16-00, establishing sustainable building as a primary goal for state construction and tasking the State and Consumer Services Agency with its implementation. Our agency established the Sustainable Building Task Force, a unique partnership among more than 40 governmental agencies, whose combined building, environmental, and fiscal expertise has produced outstanding results, including funding for this report. Since its inception, the Sustainable Building Task Force has worked diligently to incorporate green building principles into California’s capital outlay process. Our many successes include: Building the first LEED Gold state owned office building in the country, the Education Headquarters Building, which is saving taxpayers $500,000 a year in energy costs alone; Including sustainable building performance standards, such as energy efficiency, in over $2 billion of state construction and renovation contracts;

Sustainable Building; Task Force; Greg Kats; Capital E; Adam Berman; Capital E; Jeff Perlman; Capital E

2003-01-01T23:59:59.000Z

220

CENTRAL AFRICAN AND PRINCIPE  

E-Print Network (OSTI)

'Abbas- Juba Zinder Agadez AnnobĂłn Tbilisi ReunionEuropa Paris Madrid Khartoum Kampala Kigali Bujumbura

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

CENTRAL AFRICAN AND PRINCIPE  

E-Print Network (OSTI)

MADEIRA ISLANDS CANARY ISLANDS Nouadhibou Mahajanga Toamasina 'Abbas- Juba Zinder Agadez AnnobĂłn Tbilisi

222

CENTRAL AFRICAN AND PRINCIPE  

E-Print Network (OSTI)

ISLANDS Nouadhibou Mahajanga Toamasina 'Abbas- Juba Zinder Agadez AnnobĂłn Tbilisi ReunionEuropa Paris

223

BNL CRCR Principal Investigators  

NLE Websites -- All DOE Office Websites (Extended Search)

dismutase and model compounds. Andrew R. Cook Excited state structure, dynamics and electron transfer reactions of a variety of organic radicals in both low temperature...

224

Principal Investigators | Biosciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Frank Collart Frank Collart BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne Frank Collart Biosciences Division Bldg: 202 Room: A-357 Email: fcollart@anl.gov Phone: (630) 252-4859 Fax: (630) 252-5517 Education Professional Experience Publication List Research Highlights > Education: 1984, Ph.D, Medical College of Ohio, Medical Sciences 1982, M.S., Bowling Green State University, Chemistry 1977, B.A., Bowling Green State University, Chemistry > Professional Experience: 1994-present: Molecular Biologist; Biosciences Division, Argonne National Laboratory. 1989-1994: Assistant Molecular Biologist; Division of Biological and Medical Research, Argonne National Laboratory. 1984-1989: Postdoctoral Appointee, Supervisor: Dr Eliezer Huberman; Division of Biological and Medical Research, Argonne National Laboratory.

225

Well Testing Techniques | Open Energy Information  

Open Energy Info (EERE)

Well Testing Techniques Well Testing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Well Testing Techniques Details Activities (0) Areas (0) Regions (0) NEPA(17) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: Enable estimation of in-situ reservoir elastic parameters Stratigraphic/Structural: Fracture distribution, formation permeability, and ambient tectonic stresses Hydrological: provides information on permeability, location of permeable zones recharge rates, flow rates, fluid flow direction, hydrologic connections, storativity, reservoir pressures, fluid chemistry, and scaling.

226

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques (Redirected from Ground Electromagnetic Methods) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

227

Electromagnetic Sounding Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Sounding Techniques Electromagnetic Sounding Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Sounding Techniques Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

228

Electromagnetic Sounding Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Sounding Techniques Electromagnetic Sounding Techniques (Redirected from Electromagnetic Sounding Methods) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Sounding Techniques Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water

229

Remote Sensing Techniques | Open Energy Information  

Open Energy Info (EERE)

Remote Sensing Techniques Remote Sensing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Remote Sensing Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Remote Sensing Techniques: Remote sensing utilizes satellite and/or airborne based sensors to collect information about a given object or area. Remote sensing data collection methods can be passive or active. Passive sensors (e.g., spectral imagers) detect natural radiation that is emitted or reflected by the object or area

230

Active Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Active Seismic Techniques Active Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Active Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

231

Electromagnetic Profiling Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Profiling Techniques Electromagnetic Profiling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Profiling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

232

Borehole Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Borehole Seismic Techniques Borehole Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Borehole Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Borehole Seismic Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation Thermal: High temperatures and pressure impact the compressional and shear wave velocities

233

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

234

Passive Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Passive Seismic Techniques Passive Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Passive Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(4) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

235

APS 7-BM Beamline: Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Motivation Motivation The major thrust of the 7-BM beamline is the application of synchrotron radiation tools to examine complex fluid flowfields. Two major techniques are applied: radiography and x-ray fluorescence spectroscopy. While optical techniques are often ideally suited to the study of fluid flowfields, there are certain flowfields for which optical diagnostics have significant challenges. These include: Multiphase flows: Visible light interacts strongly with phase boundaries. This leads to strong refraction, scattering, and attenuation of light. These effects hinder quantitative measurements of dense multiphase flowfields. Opaque media. Flows with strong refractive effects. Luminous flames: The strong light emission from sooting flames can hinder certain optical diagnostics.

236

Erasure Techniques in MRD codes  

E-Print Network (OSTI)

This book is organized into six chapters. The first chapter introduces the basic algebraic structures essential to make this book a self contained one. Algebraic linear codes and their basic properties are discussed in chapter two. In chapter three the authors study the basic properties of erasure decoding in maximum rank distance codes. Some decoding techniques about MRD codes are described and discussed in chapter four of this book. Rank distance codes with complementary duals and MRD codes with complementary duals are introduced and their applications are discussed. Chapter five introduces the notion of integer rank distance codes. The final chapter introduces some concatenation techniques.

W. B. Vasantha Kandasamy; Florentin Smarandache; R. Sujatha; R. S. Raja Durai

2012-05-03T23:59:59.000Z

237

Technical education and brainstorming technique  

Science Conference Proceedings (OSTI)

The brainstorming technique used for software projects development is presented as a powerful solution for teaching and research activity in the technical domain. Brainstorming was introduced in the technical domain as an efficient method that was developed ... Keywords: alternative education, brainstorming, design patterns, enneagram, resonance, software engineering

Mircea-Florin Vaida

2007-03-01T23:59:59.000Z

238

Analyzing Regression Test Selection Techniques  

Science Conference Proceedings (OSTI)

AbstractżRegression testing is a necessary but expensive maintenance activity aimed at showing that code has not been adversely affected by changes. Regression test selection techniques reuse tests from an existing test suite to test a modified program. ... Keywords: Software maintenance, regression testing, selective retest, regression test selection.

Gregg Rothermel; Mary Jean Harrold

1996-08-01T23:59:59.000Z

239

Data and Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

and Modeling Techniques and Modeling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Data and Modeling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Rock types, rock chemistry, stratigraphic layer organization Stratigraphic/Structural: Stress fields and magnitudes, location and shape of permeable and non-permeable structures, faults, and fracture patterns Hydrological: Visualization and prediction of the flow patterns and characteristics of geothermal fluids, hydrothermal fluid flow characteristics, up-flow patterns

240

Category:Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Geophysical Techniques page? For detailed information on Geophysical Techniques as exploration techniques, click here. Category:Geophysical Techniques Add.png Add a new Geophysical Techniques Technique Subcategories This category has the following 4 subcategories, out of 4 total. E [+] Electrical Techniques‎ (2 categories) 5 pages G [×] Gravity Techniques‎ 3 pages M [×] Magnetic Techniques‎ 3 pages S [+] Seismic Techniques‎ (2 categories) 2 pages Pages in category "Geophysical Techniques" The following 5 pages are in this category, out of 5 total. D DC Resistivity Survey (Mise-Á-La-Masse) E Electrical Techniques G Gravity Techniques M Magnetic Techniques

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Updated Satellite Technique to Forecast Heavy Snow  

Science Conference Proceedings (OSTI)

Certain satellite interpretation techniques have proven quite useful in the heavy snow forecast process. Those considered best are briefly reviewed, and another technique is introduced. This new technique was found to be most valuable in cyclonic ...

Edward C. Johnston

1995-06-01T23:59:59.000Z

242

Flip-chip and backside techniques.  

SciTech Connect

State-of-the-art techniques for failure localization and design modification through bulk silicon are essential for multi-level metallization and new, flip chip packaging methods. The tutorial reviews the transmission of light through silicon, sample preparation, and backside defect localization techniques that are both currently available and under development. The techniques covered include emission microscopy, scanning laser microscope based techniques (electrooptic techniques, LIVA and its derivatives), and other non-IR based tools (FIB, e-beam techniques, etc.).

Bernhard-Hofer, Karoline (Infineon, Regensburg, Germany); Barton, Daniel Lee; Cole, Edward Isaac, Jr.

2010-08-01T23:59:59.000Z

243

Low background techniques in XMASS  

SciTech Connect

The XMASS project aims to detect pp and {sup 7}Be solar neutrinos, neutrino-less double beta decay, and dark matter searches using ultra-pure liquid xenon. The first stage of XMASS project is concentrated on dark matter searches using 800 kg liquid xenon detector which requires low background and low threshold. Several techniques applied to XMASS detector for low background will be presented.

Takeda, Atsushi [Kamioka Observatory, ICRR, University of Tokyo, 456 Higashi-Mozumi, Kamioka-cho, Hida, Gifu, 506-1205 (Japan)

2011-04-27T23:59:59.000Z

244

Operational dose rate visualization techniques  

SciTech Connect

The analysis of the gamma ray dose rate in the vicinity of a radiation source can be greatly aided by the use of recent state-of-the-art visualization techniques. The method involves calculating dose rates at thousands of locations within a complex geometry system. This information is then processed to create contour plots of the dose rate. Additionally, when these contour plots are created, animations can be created that dynamically display the dose rate as the shields or sources are moved.

Schwarz, R.A.; Morford, R.J.; Carter, L.L.; Jones, G.B.; Greenborg, J.

1994-01-01T23:59:59.000Z

245

Category:Electrical Techniques | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Electrical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Electrical Techniques page? For detailed information on Electrical Techniques as exploration techniques, click here. Category:Electrical Techniques Add.png Add a new Electrical Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. D [+] Direct-Current Resistivity Survey‎ (2 categories) 3 pages E [+] Electromagnetic Techniques‎ (1 categories) 2 pages Pages in category "Electrical Techniques"

246

Definition: Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

Modeling Techniques Techniques that involve collecting data from one or more sources and developing a comprehensive representation of the data in a model View on...

247

The Fermilab main injector dipole construction techniques and prototype magnet measurements  

Science Conference Proceedings (OSTI)

The Fermilab Main Injector Project will provide 120--150 GeV Proton and Antiproton Beams for Fermilab Fixed Target Physics and Colliding Beams Physics use. A dipole magnet has been designed and prototypes constructed for the principal bending magnets of this new accelerator. The design considerations and fabrication techniques are described. Measurement results on prototypes are reported, emphasizing the field uniformity achieved in both body field and end field at excitation levels from injection at 0.1 T to full field of 1.7 T. 6 refs., 5 figs., 3 tabs.

Bleadon, M.; Brown, B.; Chester, N.; Desavouret, E.; Garvey, J.; Glass, H.; Harding, D.; Harfoush, F.; Holmes, S.; Humbert, J.; Kerby, J.; Knauf, A.; Kobliska, G.; Lipski, A.; Martin, P.; Mazur, P.; Orris, D.; Ostiguy, J.; Peggs, S.; Pachnik, J.; Pewitt, E.; Satti, J.; Schmidt, E.; Sim, J.; Snowdon, S.; Walbridge, D.

1991-09-01T23:59:59.000Z

248

Template:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

'ExplorationTechnique' template. To define a new Exploration 'ExplorationTechnique' template. To define a new Exploration Technique, please use the Exploration Technique Form. Parameters Definition - A link to the OpenEI definition of the technique (optional) ExplorationGroup - ExplorationSubGroup - ParentExplorationTechnique - parent technique for relationship tree LithologyInfo - the type of lithology information this technique could provide StratInfo - the type of stratigraphic and/or structural information this technique could provide HydroInfo - the type of hydrogeology information this technique could provide ThermalInfo - the type of temperature information this technique could provide EstimatedCostLowUSD - the estimated value only of the low end of the cost range (units described in CostUnit) EstimatedCostMedianUSD - the estimated value only of the median cost

249

SECURITY TECHNIQUES Chris J Mitchell1  

E-Print Network (OSTI)

SECURITY TECHNIQUES Chris J Mitchell1 Introduction In this paper we consider the range of security security has been exerted. However, the techniques described are of general applicability by a security technique; in doing so we will distinguish between security features and security techniques (or

Mitchell, Chris

250

Request for Reduction/Waiver of F&A Principal Investigators /Project Directors must budget Facilities and Administrative (F&A) costs in all grant, contract, and  

E-Print Network (OSTI)

Allowed By Sponsor (if known) Project Budget: Reason for Reduction/Waiver Request: Direct Costs (MTDC BaseRequest for Reduction/Waiver of F&A Principal Investigators /Project Directors must budget Facilities and Administrative (F&A) costs in all grant, contract, and cooperative agreement proposals using

Guenther, Frank

251

Long-Term Variation of the Principal Mode of Boreal Spring Hadley Circulation Linked to SST over the Indo-Pacific Warm Pool  

Science Conference Proceedings (OSTI)

The variability of the boreal spring [March–May (MAM)] Hadley circulation (HC) is investigated, focusing on the long-term variation of the first principal mode for 1951–2008, which is an equatorially asymmetric mode (AM) with the rising branch ...

Juan Feng; Jianping Li; Fei Xie

2013-01-01T23:59:59.000Z

252

Category:Field Techniques | Open Energy Information  

Open Energy Info (EERE)

Field Techniques Field Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Field Techniques page? For detailed information on Field Techniques as exploration techniques, click here. Category:Field Techniques Add.png Add a new Field Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. D [×] Data Collection and Mapping‎ 5 pages F [+] Field Sampling‎ (2 categories) 4 pages Pages in category "Field Techniques" The following 4 pages are in this category, out of 4 total. D Data Collection and Mapping F Field Sampling H Hand-held X-Ray Fluorescence (XRF) P Portable X-Ray Diffraction (XRD) Retrieved from "http://en.openei.org/w/index.php?title=Category:Field_Techniques&oldid=689815"

253

Evaluating verbose query processing techniques  

E-Print Network (OSTI)

Verbose or long queries are a small but significant part of the query stream in web search, and are common in other applications such as collaborative question answering (CQA). Current search engines perform well with keyword queries but are not, in general, effective for verbose queries. In this paper, we examine query processing techniques which can be applied to verbose queries prior to submission to a search engine in order to improve the search engine’s results. We focus on verbose queries that have sentence-like structure, but are not simple “wh- ” questions, and assume the search engine is a “black box. ” We evaluated the output of two search engines using queries from a CQA service and our results show that, among a broad range of techniques, the most effective approach is to simply reduce the length of the query. This can be achieved effectively by removing “stop structure ” instead of only stop words. We show that the process of learning and removing stop structure from a query can be effectively automated.

Samuel Huston; W. Bruce Croft

2010-01-01T23:59:59.000Z

254

Repositioning of Covered Stents: The Grip Technique  

SciTech Connect

Introduction: Retrieval and repositioning of a stent deployed beyond its intended target region may be a difficult technical challenge. Materials and Methods: A balloon-mounted snare technique, a variant of the coaxial loop snare technique, is described. Results: The technique is described for the repositioning of a covered transjugular intrahepatic portosystemic shunt stent and a covered biliary stent. Conclusion: The balloon-mounted snare technique is a useful technique for retrieval of migrated stents.

Kirby, John Martin, E-mail: johnkirby@ireland.com [McMaster University Medical Center (Canada); Guo Xiaofeng [McGill University (Canada); Midia, Mehran [McMaster University Medical Center (Canada)

2011-06-15T23:59:59.000Z

255

High-Throughput Screening Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Throughput Throughput Screening Techniques for Biomass Conversion Stephen R. Decker & Roman Brunecky & Melvin P. Tucker & Michael E. Himmel & Michael J. Selig Published online: 14 October 2009 # US Government 2009 Abstract High-throughput (HTP) screening of biomass or biomass-degrading enzymes, regardless of the desired outcome, is fraught with obstacles and challenges not typically faced in more traditional biotechnology. The enzyme systems are complex and synergistic and the substrate is highly heterogeneous, insoluble, and difficult to dispense. Digestions are often carried out for days at temperatures of 50°C or higher, leading to significant challenges regarding evaporation control in small well volumes. Furthermore, it is often desirable to condition or "pretreat" the biomass at extreme temperatures and/or pH to enhance enzyme digestibility.

256

Blind Source Separation Techniques for  

E-Print Network (OSTI)

Blind Source Separation techniques, based both on Independent Component Analysis and on second order statistics, are presented and compared for extracting partially hidden texts and textures in document images. Barely perceivable features may occur, for instance, in ancient documents previously erased and then re-written (palimpsests), or for transparency or seeping of ink from the reverse side, or from watermarks in the paper. Detecting these features can be of great importance to scholars and historians. In our approach, the document is modeled as the superposition of a number of source patterns, and a simplified linear mixture model is introduced for describing the relationship between these sources and multispectral views of the document itself. The problem of detecting the patterns that are barely perceivable in the visible color image is thus formulated as the one of separating the various patterns in the mixtures. Some examples from an extensive experimentation with real ancient documents are shown and commented.

Detecting Hidden Texts; Anna Tonazzini; Emanuele Salerno; Matteo Mochi; Luigi Bedini

2004-01-01T23:59:59.000Z

257

Lab Analysis Techniques | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Lab Analysis Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Lab Analysis Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Water rock interaction; Rapid and unambiguous identification of unknown minerals; Bulk and trace element analysis of rocks, minerals, and sediments; Obtain detailed information about rock composition and morphology; Determine detailed information about rock composition and morphology; Cuttings are used to define lithology; Core analysis is done to define lithology

258

A technique for creating new visual phenomena  

E-Print Network (OSTI)

This paper outlines a technique for creating new visual phenomena by proposing a systematic method of using existing media in novel manners. The technique involve s the random and purposeful manipulation of person-media ...

Ritter, Donald

1988-01-01T23:59:59.000Z

259

Category:Geochemical Techniques | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Geochemical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Geochemical Techniques page? For detailed information on exploration techniques, click here. Category:Geochemical Techniques Add.png Add a new Geochemical Techniques Technique Subcategories This category has only the following subcategory. G [×] Geochemical Data Analysis‎ 3 pages Pages in category "Geochemical Techniques" This category contains only the following page. G Geochemical Data Analysis Retrieved from "http://en.openei.org/w/index.php?title=Category:Geochemical_Techniques&oldid=689823"

260

Topics and Techniques in Forensic DNA Analysis  

Science Conference Proceedings (OSTI)

... Topics and Techniques for Forensic DNA Analysis NYC OCME Dept of Forensic Biology ... NIST Human Identity Project Leader (1999-present) ...

2012-04-17T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Microscopy Technique Could Help Computer Industry ...  

Science Conference Proceedings (OSTI)

Microscopy Technique Could Help Computer Industry Develop 3-D Components. From NIST Tech Beat: June 25, 2013. ...

2013-06-25T23:59:59.000Z

262

Airborne electromagnetic surveys as a reconnaissance technique...  

Open Energy Info (EERE)

electromagnetic surveys as a reconnaissance technique for geothermal exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Airborne...

263

Category:Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Downhole Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Downhole Techniques page? For detailed information on Downhole Techniques as exploration techniques, click here. Category:Downhole Techniques Add.png Add a new Downhole Techniques Technique Subcategories This category has the following 5 subcategories, out of 5 total. B [×] Borehole Seismic Techniques‎ 2 pages F [×] Formation Testing Techniques‎ O [×] Open-Hole Techniques‎ W [×] Well Log Techniques‎ 17 pages [×] Well Testing Techniques‎ 8 pages

264

Property:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

ExplorationTechnique ExplorationTechnique Jump to: navigation, search Property Name ExplorationTechnique Property Type Page Description The ExplorationTechnique used in the Exploration Activity. Use the form ExplorationTechnique to create new exploration technique pages. Subproperties This property has the following 1 subproperty: A Aeromagnetic Survey At Crump's Hot Springs Area (DOE GTP) Pages using the property "ExplorationTechnique" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe At Alum Area (Kratt, Et Al., 2010) + 2-M Probe Survey + 2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) + 2-M Probe Survey + 2-M Probe At Black Warrior Area (DOE GTP) + 2-M Probe Survey + 2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) + 2-M Probe Survey +

265

Fundamentals and Techniques of Nonimaging  

DOE Green Energy (OSTI)

This is the final report describing a long term basic research program in nonimaging optics that has led to major advances in important areas, including solar energy, fiber optics, illumination techniques, light detectors, and a great many other applications. The term ''nonimaging optics'' refers to the optics of extended sources in systems for which image forming is not important, but effective and efficient collection, concentration, transport, and distribution of light energy is. Although some of the most widely known developments of the early concepts have been in the field of solar energy, a broad variety of other uses have emerged. Most important, under the auspices of this program in fundamental research in nonimaging optics established at the University of Chicago with support from the Office of Basic Energy Sciences at the Department of Energy, the field has become very dynamic, with new ideas and concepts continuing to develop, while applications of the early concepts continue to be pursued. While the subject began as part of classical geometrical optics, it has been extended subsequently to the wave optics domain. Particularly relevant to potential new research directions are recent developments in the formalism of statistical and wave optics, which may be important in understanding energy transport on the nanoscale. Nonimaging optics permits the design of optical systems that achieve the maximum possible concentration allowed by physical conservation laws. The earliest designs were constructed by optimizing the collection of the extreme rays from a source to the desired target: the so-called ''edge-ray'' principle. Later, new concentrator types were generated by placing reflectors along the flow lines of the ''vector flux'' emanating from lambertian emitters in various geometries. A few years ago, a new development occurred with the discovery that making the design edge-ray a functional of some other system parameter permits the construction of whole new classes of devices with greatly expanded capabilities compared to conventional approaches. These ''tailored edge-ray'' designs have dramatically broadened the range of geometries in which nonimaging optics can provide a significant performance improvement. Considerable progress continues to be made in furthering the incorporation of nonimaging secondaries into practical high concentration and ultra-high concentration solar collector systems. In parallel with the continuing development of nonimaging geometrical optics, our group has been working to develop an understanding of certain fundamental physical optics concepts in the same context. In particular, our study of the behavior of classical radiance in nonimaging systems, has revealed some fundamentally important new understandings that we have pursued both theoretically and experimentally. The field is still relatively new and is rapidly gaining widespread recognition because it fuels many industrial applications. Because of this, during the final years of the project, our group at Chicago has been working more closely with a team of industrial scientists from Science Applications International Corporation (SAIC) at first informally, and later more formally, beginning in 1998, under a formal program initiated by the Department of Energy and incrementally funded through this existing grant. This collaboration has been very fruitful and has led to new conceptual breakthroughs which have provided the foundation for further exciting growth. Many of these concepts are described in some detail in the report.

O'Gallagher, J. J.; Winston, R.

2003-07-10T23:59:59.000Z

266

Plant monitoring techniques and second generation designs  

SciTech Connect

Chemical and instrumental monitoring techniques suitable for geothermal use are described in a manner to relate them to plant operational problems and downtime avoidance. The use of these techniques permits the detection of scaling, the onset of scaling, corrosion loss, current corrosion rates and incipient heat exchanger failure. Conceptual advances are noted which simplify the research techniques to approaches that should be usable even in some low-capital well-head type power plants. 10 refs., 8 figs.

Kindle, C.H.; Shannon, D.W.; Robertus, R.J.; Pierce, D.D.; Sullivan, R.G.

1985-03-01T23:59:59.000Z

267

REVIEW OF AIR FLOW MEASUREMENT TECHNIQUES  

Office of Scientific and Technical Information (OSTI)

9747 9747 Review of Airflow Measurement Techniques Jennifer McWilliams Energy Performance of Buildings Group Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley, CA 94720 December 1, 2002 Abstract Airflow measurement techniques are necessary to determine the most basic of indoor air quality questions: "Is there enough fresh air to provide a healthy environment for the occupants of the building?" This paper outlines airflow measurement techniques, but it does not make recommendations for techniques that should be used. The airflows that will be discussed are those within a room or zone, those between rooms or zones, such as through doorways (open or closed) or passive vents, those between the building and

268

Definition: Electromagnetic Profiling Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Profiling Techniques Electromagnetic Profiling Techniques Jump to: navigation, search Dictionary.png Electromagnetic Profiling Techniques Electromagnetic profiling techniques map lateral variations in subsurface resistivity.[1] View on Wikipedia Wikipedia Definition Exploration geophysics is the applied branch of geophysics which uses surface methods to measure the physical properties of the subsurface Earth, along with the anomalies in these properties, in order to detect or infer the presence and position of ore minerals, hydrocarbons, geothermal reservoirs, groundwater reservoirs, and other geological structures. Exploration geophysics is the practical application of physical methods (such as seismic, gravitational, magnetic, electrical and electromagnetic) to measure the physical properties of rocks, and in particular, to detect

269

Category:Exploration Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Geothermal Exploration page? For detailed information on Geothermal Exploration, click here. Category:Exploration Techniques Add.png Add a new Exploration Technique Subcategories This category has the following 9 subcategories, out of 9 total. D [+] Data and Modeling Techniques‎ (2 categories) 2 pages [+] Downhole Techniques‎ (5 categories) 10 pages [+] Drilling Techniques‎ (2 categories) 4 pages F [+] Field Methods‎ (1 categories) [+] Field Techniques‎ (2 categories) 4 pages G [+] Geochemical Techniques‎ (1 categories) 1 pages G cont. [+] Geophysical Techniques‎ (4 categories) 5 pages L [+] Lab Analysis Techniques‎ (2 categories) 4 pages R [+] Remote Sensing Techniques‎ (2 categories) 2 pages

270

A Double Smoothing Technique for Constrained Convex ...  

E-Print Network (OSTI)

In this paper, we propose an efficient approach for solving a class of convex opti- ... accelerate our scheme, we introduce a novel double smoothing technique ...

271

Explo 2007 Blasting: Techniques & Technology Proceedings - TMS  

Science Conference Proceedings (OSTI)

Oct 22, 2008 ... This is an explosive review. Or to be more precise this review is about the Blasting: Techniques & Technology Explo 2007 Conference.

272

Eddy current technique for predicting burst pressure  

DOE Patents (OSTI)

A signal processing technique which correlates eddy current inspection data from a tube having a critical tubing defect with a range of predicted burst pressures for the tube is provided. The method can directly correlate the raw eddy current inspection data representing the critical tubing defect with the range of burst pressures using a regression technique, preferably an artificial neural network. Alternatively, the technique deconvolves the raw eddy current inspection data into a set of undistorted signals, each of which represents a separate defect of the tube. The undistorted defect signal which represents the critical tubing defect is related to a range of burst pressures utilizing a regression technique.

Petri, Mark C. (Yorkville, IL); Kupperman, David S. (Oak Park, IL); Morman, James A. (Woodridge, IL); Reifman, Jaques (Western Springs, IL); Wei, Thomas Y. C. (Downers Grove, IL)

2003-01-01T23:59:59.000Z

273

Teasing out technique : animating Boston's City Hall  

E-Print Network (OSTI)

What were once considered advanced visualization techniques have now become commonplace. With the advancement of visualization tools, animation has quickly become a primary means of representation within architecture; ...

Woods, Ann C., M. Arch. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

274

Communication Techniques, Practices and Strategies of Generation ...  

Science Conference Proceedings (OSTI)

Communication Techniques, Practices and Strategies of Generation žWeb n+1č .... prevalence, distribution and (closed) format; d) the argument that a printed ...

275

Definition: Passive Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

techniques utilize vibrations from natural earthquakes or rupture processes (due to hydraulic stimulation) as a source for structural imaging of the subsurface.1 References ...

276

Category:Magnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Category Edit History Facebook icon Twitter icon Category:Magnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the...

277

NSLS Industrial User Program | Synchrotron Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

NSLS Industrial Users' Program Industry Home | Synchrotron Techniques | Battery Lab | Science Highlights | Industrial Program Coordinator | Publications Battery Lab NSLS users are...

278

Query expansion techniques for question answering.  

E-Print Network (OSTI)

??Query expansion is a technique used to boost performance of a document retrieval engine, such as those commonly found in question answering (QA) systems. Common… (more)

Bilotti, Matthew W. (Matthew William), 1981-

2004-01-01T23:59:59.000Z

279

Experimental Techniques for Measuring Temperature and Velocity...  

NLE Websites -- All DOE Office Websites (Extended Search)

Measuring Temperature and Velocity Fields to Improve the Use and Validation of Building Heat Transfer Models Title Experimental Techniques for Measuring Temperature and Velocity...

280

Computer vision techniques for underwater navigation  

E-Print Network (OSTI)

DCS) Chapter 2 Computer Vision . . 2.1 Labeling . . . . 2.2OF CALIFORNIA, SAN DIEGO Computer Vision Techniques fordegree Master of Science in Computer Science by Christopher

Barngrover, Christopher M.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Propane earth materials drying techniques and technologies.  

E-Print Network (OSTI)

??A feasibility study for the use of propane as a subbase drying technique. Michael Blahut (1) Dr. Vernon Schaefer (2) Dr. Chris Williams (3) The… (more)

Blahut, Michael Edward

2010-01-01T23:59:59.000Z

282

Computer vision techniques for underwater navigation  

E-Print Network (OSTI)

Vision Techniques for Underwater Navigation A thesisand J. Amat. Positioning an underwater vehicle through imageand S. Feder. Autonomous Underwater Vehicle Navigation. MIT

Barngrover, Christopher M.

2010-01-01T23:59:59.000Z

283

Basement Insulation Techniques | Building Energy Codes Program  

NLE Websites -- All DOE Office Websites (Extended Search)

Basement Insulation Techniques Residential basement insulation levels should be selected in accordance with the International Energy Conservation Code, or the local energy code. Be...

284

Definition: Electromagnetic Sounding Techniques | Open Energy...  

Open Energy Info (EERE)

Sounding Techniques Electromagnetic soundings aim to map the distribution of electrical resistivity as a function of depth.1 References http:www.amazon.com...

285

Review of air flow measurement techniques  

E-Print Network (OSTI)

chamber, passive sampling, passive solar house, measurementhouse, we planed the distribution of fresh air, passivepassive perfluorocarbon tracer technique for determining air infiltration rates into houses

McWilliams, Jennifer

2002-01-01T23:59:59.000Z

286

The effects of the middle school concept on student achievement as identified by principals and the Academic Excellence Indicator System (AEIS) reports in selected middle schools in Texas  

E-Print Network (OSTI)

The purpose of this study was to investigate the possible relationship between the level of implementation of the middle school concept and student achievement. The level of implementation of the middle school concept was determined by the Texas Assessment of Middle Level Schools (TAMLS) which was completed by a random sample of middle school principals from across Texas. Student achievement and selected demographic data were obtained from the Academic Excellence Indicator System (AEIS) reports on the various campuses as published on the Texas Education Agency (TEA, 2003a) website. Student achievement, school size, and demographic variables were investigated using frequency counts, mean scores, standard deviations, analysis of variance (ANOVA), and Pearson product?moment correlations across independent variable categories. The independent variable categories were the five criteria and the total score as rated by principals on the TAMLS survey. Major research findings of this study include: 1. Relationships were found between the TAMLS criteria of developmental responsiveness and teacher preparation and professional development with student achievement across all of the research questions examined. 2. Relationships were found between school size, the TAMLS criteria and student achievement. 3. Relationships were found between student ethnicity, the TAMLS criteria, and student achievement. The study results with regard to the relationship between the level of implementation of the middle school concept, taken in its totality, are inconclusive. This finding is supported in a review of the literature. Based on the findings of the study, researcher recommendations include: 1. Middle schools involved in reform efforts to improve student achievement should focus their efforts in the areas of developmental responsiveness and teacher professional development. 2. Principals of large middle schools (n ? 801 students) should consider the implementation of the middle school concept as a design strategy when reform efforts are undertaken.

Brundrett, Robert Clinton

2004-12-01T23:59:59.000Z

287

Principal facts and a discussion of terrain correction methods for the complete Bouguer gravity anomaly map of the Cascade Mountains, Washington  

DOE Green Energy (OSTI)

Since 1974, the Division of Geology and Earth Resources, in conjunction with the US Department of Energy, has supported gravity studies in the Cascade Mountains of Washington State. Results of the Cascade gravity project are summarized graphically as a complete Bouguer gravity anomaly map of the Cascade Mountains, Washington (Danes and Phillips, 1983). This report provides supplementary data and documentation for the complete Bouguer gravity anomaly map. Presented are principal gravity facts, simple Bouguer and Free-air gravity anomalies, computational methods, error analysis and a discussion of terrain corrections.

Danes, Z.F.; Phillips, W.M.

1983-02-01T23:59:59.000Z

288

Power reduction techniques for microprocessor systems  

Science Conference Proceedings (OSTI)

Power consumption is a major factor that limits the performance of computers. We survey the “state of the art” in techniques that reduce the total power consumed by a microprocessor system over time. These techniques are applied at various ... Keywords: Energy dissipation, power reduction

Vasanth Venkatachalam; Michael Franz

2005-09-01T23:59:59.000Z

289

Waterflood surveillance techniques; A reservoir management approach  

SciTech Connect

The reservoir management aspects of waterflooding span the time before the start of waterflood to the time when the secondary recovery either is uneconomic or is changed to an enhanced recovery. This paper reviews waterflood techniques and reports on surveillance techniques in the management of waterflooding of oil wells.

Thakur, G.C. (Chevron USA Inc. (US))

1991-10-01T23:59:59.000Z

290

Live pathogens: rapid detection technique developed  

NLE Websites -- All DOE Office Websites (Extended Search)

January » January » Live Pathogens: Rapid Detection Technique Developed Live pathogens: rapid detection technique developed The technique relies on bacteria being critically dependent upon the key nutrient iron. January 24, 2013 Colorized scanning electron micrograph of E. coli. Colorized scanning electron micrograph of E. coli. Photo credit: US Centers for Disease Control and Prevention LANL's new method eliminates the need for laboratory culture and greatly speeds the process. Los Alamos researchers have developed a better technique for quick detection of live pathogens in the field. Identification of viable bacteria in a complex environment is scientifically challenging. Current detection and diagnostic techniques are inadequate in major public health emergencies, such as outbreaks of food-borne illness. Detection of live

291

Definition: Lab Analysis Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Lab Analysis Techniques Jump to: navigation, search Dictionary.png Lab Analysis Techniques Lab Analysis Techniques encompass a broad array of analytical methods that can be used to characterize the chemical and physical properties of rock and fluid samples. The reliability of laboratory analyses depends strongly on both adherence to standard sampling procedures in the field when collecting materials for examination and on the application of appropriate sample preparation techniques in the lab. Ret Like Like You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Lab_Analysis_Techniques&oldid=688298" Category:

292

Tailoring couple therapy techniques to client needs  

E-Print Network (OSTI)

Research illuminating which therapist techniques are used in care-as-usual couple therapy, and under what circumstances, can contribute to a fuller understanding of how therapy works. The overall goal of the present study was to better understand care-as-usual couple therapy by investigating session-by-session techniques and session content to determine how therapists modify them based on the timing of the session and couples? pre-treatment characteristics. A total of 123 heterosexual couples were examined. Therapists frequently used acceptance techniques and discussion of recent or ongoing conflict or problem. Therapists typically used the same levels of techniques and session contents over a course of therapy. In addition, there were relatively few predictors of change in therapy techniques and session content.

Hsueh, Annie C.

2008-12-01T23:59:59.000Z

293

Wire Making Techniques - HTS Coated Conductors - Fact Sheet ...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Wire Making Techniques - HTS Coated Conductors - Fact Sheet Wire Making Techniques - HTS Coated Conductors - Fact Sheet Wire Making Techniques - HTS Coated Conductors - Fact Sheet...

294

Ultrasonic examination techniques for multicouple thermoelectric subcomponents and assemblies: Status report  

DOE Green Energy (OSTI)

Since the early 1960s, the United States has been using radioisotope thermoelectric generators (RTGs), developed by the US Department of Energy and its predecessors, for a variety of environments including space. A recent concept in building RTGs uses modular components to allow for an advanced, lighter space mission generator that provides scaled power level outputs. The scalability feature of the modular isotopic thermoelectric generator (MITG) represents a major advance over earlier RTG designs. However, special problems are encountered in applying nondestructive testing methods because of the miniature size of parts that require inspection. This report describes the status of ultrasonic inspection methods being developed to examine the subcomponents and assemblies of the; MITG. The principal emphasis has been to evaluate various bonds between subcomponents using ultrasonic techniques that employ focused search units and a pulse-echo method.

Cook, K.V.; McClung, R.W.; Simpson, W.A. Jr.; Cunningham, R.A. Jr.

1986-09-01T23:59:59.000Z

295

Definition: Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Ground Electromagnetic Techniques Jump to: navigation, search Dictionary.png Ground Electromagnetic Techniques Ground electromagnetic techniques measure electromagnetic fields in order to determine subsurface electrical resistivity with the earth surface as the observation point.[1] View on Wikipedia Wikipedia Definition The electromagnetic force is one of the four fundamental interactions in nature, the other three being the strong interaction, the weak interaction, and gravitation. This force is described by electromagnetic fields, and has innumerable physical instances including the interaction of electrically charged particles and the interaction of uncharged magnetic force fields with electrical conductors. The word

296

Wafer-scale charge isolation technique  

DOE Patents (OSTI)

An apparatus and method are described which improve the performance of charge-coupled devices (CCD) in the presence of ionizing radiation. The invention is a wafer scale charge isolation technique which inhibits or reduces the flow of electrons created by the passage of ionizing radiation in the bulk regions of a silicon CCD. The technique has been tested in a device designed for operating in the infra-red wavelength band. The technique prevents charge from reaching the active charge collection volume of a pixel in a CCD.

Colella, N.J.; Kimbrough, J.R.

1994-12-31T23:59:59.000Z

297

Superhydrophobic Materials Technology-PVC Bonding Techniques  

SciTech Connect

The purpose of the technology maturation project was to develop an enhanced application technique for applying diatomaceous earth with pinned polysiloxane oil to PVC pipes and materials. The oil infiltration technique is applied as a spray of diluted oil in a solvent onto the superhydrophobic diatomaceous earth substrate. This makes the surface take on the following characteristics: • wet?cleanable • anti?biofouling • waterproof • anti?corrosion. The project involved obtaining input and supplies from VeloxFlow and the development of successful techniques that would quickly result in a commercial license agreement with VeloxFlow and other companies that use PVC materials in a variety of other fields of use.

Hunter, Scott R. [Oak Ridge National Laboratory; Efird, Marty [VeloxFlow, LLC

2013-05-03T23:59:59.000Z

298

Risk assessment technique for evaluating research laboratories  

SciTech Connect

A technique has been developed to evaluate research laboratories according to risk, where risk is defined as the product of frequency and consequence. This technique was used to evaluate several laboratories at the Idaho National Engineering Laboratory under the direction of the Department of Energy, Idaho Field Office to assist in the risk management of the Science and Technology Department laboratories. With this technique, laboratories can be compared according to risk, and management can use the results to make cost effective decisions associated with the operation of the facility.

Bolander, T.W.; Meale, B.M.; Eide, S.A.

1992-01-01T23:59:59.000Z

299

Risk assessment technique for evaluating research laboratories  

SciTech Connect

A technique has been developed to evaluate research laboratories according to risk, where risk is defined as the product of frequency and consequence. This technique was used to evaluate several laboratories at the Idaho National Engineering Laboratory under the direction of the Department of Energy, Idaho Field Office to assist in the risk management of the Science and Technology Department laboratories. With this technique, laboratories can be compared according to risk, and management can use the results to make cost effective decisions associated with the operation of the facility.

Bolander, T.W.; Meale, B.M.; Eide, S.A.

1992-09-01T23:59:59.000Z

300

Definition: Active Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Seismic Techniques Seismic Techniques Jump to: navigation, search Dictionary.png Active Seismic Techniques Active seismic techniques study the behavior of artificially-generated elastic waves in the subsurface. A seismic wave or pulse is generated at the surface by an active seismic source which can be a vibration, mechanical impact, or near-surface explosion.[1] View on Wikipedia Wikipedia Definition Seismic waves are waves of energy that travel through the Earth's layers, and are a result of an earthquake, explosion, or a volcano that imparts low-frequency acoustic energy. Many other natural and anthropogenic sources create low amplitude waves commonly referred to as ambient vibrations. Seismic waves are studied by geophysicists called seismologists. Seismic wave fields are recorded by a seismometer,

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Definition: Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

Downhole Techniques Downhole Techniques Jump to: navigation, search Dictionary.png Downhole Techniques Downhole techniques are measurements collected from a borehole environment which provide information regarding the character of formations and fluids intersected by a well. These petrophysical data are fundamental to developing the understanding of a geothermal reservoir.[1] View on Wikipedia Wikipedia Definition Petrophysics (from the Greek πέτρα, petra, "rock" and φύσÎčς, physis, "nature") is the study of physical and chemical rock properties and their interactions with fluids. A major application of petrophysics is in studying reservoirs for the hydrocarbon industry. Petrophysicists are employed to help reservoir engineers and geoscientists understand the rock properties of the reservoir, particularly how pores in

302

Definition: Drilling Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search Dictionary.png Drilling Techniques There are a variety of drilling techniques which can be used to sink a borehole into the ground. Each has its advantages and disadvantages, in terms of the depth to which it can drill, the type of sample returned, the costs involved and penetration rates achieved. There are two basic types of drills: drills which produce rock chips, and drills which produce core samples.[1] View on Wikipedia Wikipedia Definition Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring.

303

NSLS Industrial User Program | Synchrotron Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Synchrotron X-ray Techniques for Industrial Research Synchrotron X-ray Techniques for Industrial Research Techniques http://www.sc.doe.gov/bes/synchrotron_techniques/ Spectroscopy Spectroscopy is used to study the energies of particles emitted or absorbed by samples that are exposed to beam to determine the characteristics of chemical bonding and electron energy band structure. Extended X-Ray Absorption Fine Structure Spectroscopy (EXAFS) X-Ray Absorption Near Edge Spectroscopy (XANES) Hard X-ray Photoelectron Spectroscopy (HAXPES) Scanning X-Ray Microscopy: Micro-XRF, -XAFS, -XRD Soft X-Ray Absorption and Scattering Infrared Vibrational Microspectroscopy Photoemission Electron Microscopy / Low-Energy Electron Microscopy (PEEM/LEEM) Scattering/Diffraction Scattering/diffraction makes use of the patterns of scattered x-rays when

304

Quality technique transfer: Manufacturing and software  

Science Conference Proceedings (OSTI)

An argument for quality technique transfer between manufacturing and software is put forward in which it is recognised that the nature of the production process differs and that the emphasis accorded given stages in the respective life cycles ...

Graham A. King

2000-01-01T23:59:59.000Z

305

Hardware Fault Insertion Techniques and Tools  

E-Print Network (OSTI)

The concept of dependability validation becomes more and more important regarding big public telecom systems. This is why fault insertion has been widely accepted as a means of testing the fault handling mechanisms of the systems. This master thesis classifies and compares fault insertion techniques used within the industry. It also looks into internal fault insertion techniques used by the people at Ericsson Telecom working with the AXD301 ATM switch. Hardware Fault Insertion Techniques and Tools 2 Acknowledgements The following people at Ericsson has contributed to this thesis in one way or another: Roger Nordmark Mattias Rimbark Bengt Kvist Anders strm Kenny Ohlsson Johan Jeppson Johan Eklv Also a thank you to my supervisor at KTH: Axel Jantsch A special thanks also to my good friend and colleague: Robert Thorhuus Hardware Fault Insertion Techniques and Tools 3 Abbreviations ASIC - Application Specific Integrated Circuit ATM - Asynchronous Transfer Mode BSDL - Boundary Scan De...

Emil Savqvist; Roger Nordmark; Mattias Rimbark; Bengt Kvist; Anders Ćström; Kenny Ohlsson; Johan Eklöv; Axel Jantsch; Robert Thorhuus; Hw Hard Ware

2000-01-01T23:59:59.000Z

306

Definition: Gravity Techniques | Open Energy Information  

Open Energy Info (EERE)

0521576326 Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http:en.openei.orgwindex.php?titleDefinition:GravityTechniques&oldid598...

307

Advanced illumination techniques for GPU volume raycasting  

Science Conference Proceedings (OSTI)

Volume raycasting techniques are important for both visual arts and visualization. They allow an efficient generation of visual effects and the visualization of scientific data obtained by tomography or numerical simulation. Thanks to their flexibility, ...

Markus Hadwiger; Patric Ljung; Christof Rezk Salama; Timo Ropinski

2008-12-01T23:59:59.000Z

308

Lower bound techniques for data structures  

E-Print Network (OSTI)

We describe new techniques for proving lower bounds on data-structure problems, with the following broad consequences: * the first [omega](lg n) lower bound for any dynamic problem, improving on a bound that had been ...

P?tra?cu, Mihai

2008-01-01T23:59:59.000Z

309

Advanced Characterization Techniques for Quantifying and ...  

Science Conference Proceedings (OSTI)

TMS Materials Processing and Manufacturing Division ... (3) All advanced electron-based techniques including HR-TEM, EBSD, HR-EBSD, PED, and ... Micromechanical Deformation Behaviour of Hydride-containing Micropillars in Zircaloy-4.

310

Two Improvements in Omega Windfinding Techniques  

Science Conference Proceedings (OSTI)

A one-dimensional local spline smoothing technique is applied to Omega navigational signals for the purpose of windfinding. Wind profiles so produced depend largely on two parameters of the smoothing procedure: the nodal spacing, which determines ...

James L. Franklin; Katsuyuki V. Ooyama; Stephen J. Lord

1987-03-01T23:59:59.000Z

311

Continuous flow separation techniques for microchemical synthesis  

E-Print Network (OSTI)

Performing multistep microchemical synthesis requires many techniques from combining micromixers in series to the development of continuous microfluidic separation tools. Safety, high heat and mass transfer rates, and cost ...

Kralj, Jason G

2006-01-01T23:59:59.000Z

312

A Unified Analysis-Initialization Technique  

Science Conference Proceedings (OSTI)

A unified analysis-initialization technique is introduced and tested in the framework of the shallow water equations. It consists of iterating multivariate optimal interpolation and nonlinear normal mode initialization. For extratropical regions, ...

David L. Williamson; Roger Daley

1983-08-01T23:59:59.000Z

313

Meteorological Tracer Techniques for Parameterizing Atmospheric Dispersion  

Science Conference Proceedings (OSTI)

Although tracer materials have been used in atmospheric dispersion studies for decades, basic information about meteorological tracer techniques is scattered among a number of different sources. This paper attempts to pull together this ...

Warren B. Johnson

1983-05-01T23:59:59.000Z

314

Query expansion techniques for question answering  

E-Print Network (OSTI)

Query expansion is a technique used to boost performance of a document retrieval engine, such as those commonly found in question answering (QA) systems. Common methods of query expansion for Boolean keyword-based document ...

Bilotti, Matthew W. (Matthew William), 1981-

2004-01-01T23:59:59.000Z

315

Nondestructive Performance Characterization Techniques for Module Reliability  

DOE Green Energy (OSTI)

This paper describes nondestructive characterization techniques for module reliability. These techniques include light and dark current versus voltage and related analysis such as resistance, diode quality factor, and dark current. The use of the NREL laser scanner at zero volts and forward bias is also described as a technique to uncover cracks, shunts, and open-circuit regions in a module. Quantum-efficiency measurements of isolated cells or regions in a module are also possible. The interpretation of laser-scanning data is enhanced by hot-spot testing with an infrared camera or thermographic paper. Specialized nondestructive techniques have also been developed to determine the shunt resistance of individual cells in a module by selective shading of cells under sunlight. Ultraviolet fluorescence and reflectivity measurements at NREL have proven useful in evaluating encapsulant stability.

Emery, K.

2003-05-01T23:59:59.000Z

316

A Parameterization Technique for Nonlinear Spectral Models  

Science Conference Proceedings (OSTI)

The feasibility of developing an objective parameterization technique is examined for general nonlinear hydrodynamical systems. The typical structure of these hydrodynamical systems, regardless of their complexity, is one in which the rates of ...

Ronald Gelaro; Hampton N. Shirer

1986-04-01T23:59:59.000Z

317

Insider Power Techniques for Microsoft Windows XP  

Science Conference Proceedings (OSTI)

Tweak Windowsź XP for ultimate performance with the undocumented secrets and hidden gems of the experts who work with the technology every day. Use their best techniques, practices, hacks, tricks, and workarounds to put all of your PC's muscle to ...

Paul Mcfedries; Austin Wilson; Geoff Winslow

2003-02-01T23:59:59.000Z

318

Techniques for enhanced physical-layer security  

E-Print Network (OSTI)

Information-theoretic security--widely accepted as the strictest notion of security--relies on channel coding techniques that exploit the inherent randomness of propagation channels to strengthen the security of communications ...

Pinto, Pedro C.

319

A Survey of Radar Rain Measurement Techniques  

Science Conference Proceedings (OSTI)

Several methods used to estimate rainfall rate R are surveyed. The distribution N(D) of drop sizes is of central importance in determining the reflectivity factor Z, attenuation rate K, and R. With single-parameter measurement techniques either ...

Richard J. Doviak

1983-05-01T23:59:59.000Z

320

A guide to programming tools and techniques  

Science Conference Proceedings (OSTI)

Current programming tools and techniques facilitating program development and maintenance under Operating System/360 and/370 are collected and discussed. These aids are categorized and defined according to their function. Abstracts of some of the available ...

J. W. Pomeroy

1972-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

A Technique for Autocalibration of Cloud Lidar  

Science Conference Proceedings (OSTI)

In this paper a technique for autocalibration of a cloud lidar is demonstrated. It is shown that the lidar extinction-to-backscatter ratio derived from integrated backscatter for stratocumulus is, in the absence of drizzle, constrained to a ...

Ewan J. O'Connor; Anthony J. Illingworth; Robin J. Hogan

2004-05-01T23:59:59.000Z

322

Fingerprint Image Postprocessing Using Windowing Technique  

Science Conference Proceedings (OSTI)

Performance of Automatic Fingerprint Identification System (AFIS) is greatly affected by its matching rate, means it should have low False Acceptance Rate (FAR) and False Rejection Rate (FRR). Minutiae based fingerprint matching techniques are normally ...

Anam Tariq; M. Usman Akram; Sarwat Nasir; Rabia Arshad

2008-06-01T23:59:59.000Z

323

Lidar techniques for search and rescue  

SciTech Connect

Four techniques for using LIDAR in Search and Rescue Operations will be discussed. The topic will include laser retroreflection, laser-induced fluorescence in the visible, laser-induced fluorescence during daylight hours, and laser-induced fluorescence in the uv. These techniques use high-repetition rate lasers at a variety of frequencies to induce either fluorescence in dye markers or retroreflection from plastic corner cubes on life preservers and other emergency markers.

Cabral, W.L.

1985-01-01T23:59:59.000Z

324

Cascade Training Technique for Particle Identification  

E-Print Network (OSTI)

The cascade training technique which was developed during our work on the MiniBooNE particle identification has been found to be a very efficient way to improve the selection performance, especially when very low background contamination levels are desired. The detailed description of this technique is presented here based on the MiniBooNE detector Monte Carlo simulations, using both artifical neural networks and boosted decision trees as examples.

Yong Liu; Ion Stancu

2006-11-27T23:59:59.000Z

325

Refinery analytical techniques optimize unit performance  

Science Conference Proceedings (OSTI)

Refinery process engineers need to consider benefits of laboratory analytical techniques when evaluating unit performance. Refinery heavy-oil laboratory analytical techniques use both old and new technologies. Knowing how to use available laboratory analytical techniques within their limitations are critical to obtain correct refinery optimization decisions. Better refinery stream distillation and contaminant data ultimately improves the accuracy of various refinery decision-making tools. These laboratory analytical techniques are covered: high-temperature simulated distillation (HTSD); true boiling point (TBP) distillation--ASTM D2892; vacuum distillation--ASTM D5236; continuous-flash vaporizers; wiped-film evaporators; inductively coupled plasma atomic-emission spectroscopy (ICP-AES); Conradson--ASTM D189/Microcarbon residue--ASTM D4530; and asphaltene IP-143, ASTM D3279, ASTM D4124. Analysis of atmospheric crude, vacuum crude and delayed coker units highlight these laboratory techniques to identify potential yield and product quality benefits. Physical distillation or wiped-film evaporation in conjunction with HTSD, ICP-AES, microcarbon residue and asphaltened data will better characterize a feedstock as well as determine the source of contaminants. Economics are refinery specific, therefore, these examples focus on applying laboratory techniques as opposed to discussing specifics of unit improvement. These are discussed qualitatively.

Golden, S.W. [Process Consulting Services Inc., Grapevine, TX (United States); Craft, S. [Chempro, Inc., LaPorte, TX (United States); Villalanti, D.C. [Triton Analytics Corp., Houston, TX (United States)

1995-11-01T23:59:59.000Z

326

Buildings*","Principal Building Activity"  

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

"District Heat ...",5166,1106,"N","Q",353,"Q","Q","Q" "Boilers ...",20423,5171,"Q",328,1477,380,2773,383 "Packaged Heating Units...

327

WEB RESOURCE: Principal Metals Online  

Science Conference Proceedings (OSTI)

Feb 9, 2007 ... This resource provides materials property data on more than 5000 ferrous and non-ferrous materials. Chemistry, mechanicals, general ...

328

PRINCIPAL'S 2010*2011CON  

E-Print Network (OSTI)

forms the centrepiece of a new Business Intelligence Centre in the Desautels Faculty of Management States: Conversations and Relations," its 16th annual conference. The FACULTY OF EDUCATION hosted 2 new state-of-the-art Alphonse-Desjardins Trading Room will allow Management students to master

Fabry, Frederic

329

Peter T. Cummings Principal Scientist  

E-Print Network (OSTI)

., "Supercapacitor Capacitance Exhibits Oscillatory Behavior as a Function of Nanopore Size," Journal of Physical

Pennycook, Steve

330

Stationary Source Division Principal Contributors  

E-Print Network (OSTI)

Publication does not signify that the contents reflect the views and policies of the Air Resources Board, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. This Page Left Intentionally BlankAcknowledgments This report was prepared with the assistance and support from many individuals within the Air Resources Board. In addition, staff would like to acknowledge the assistance and cooperation that we have received from many individuals from other divisions and offices of the Air Resources Board, whose contributions throughout the development process have been invaluable. Finally, staff would like to acknowledge the significant contributions from the numerous State, federal, and internal governmental agencies that have provided assistance throughout the rulemaking process.

Alternative Fuels Branch; Richard Corey Chief; Kamal Ahuja; Ray Asregadoo; Michelle Buffington; Kevin Cleary; Hafizur Chowdhury; Susie Chung; James Duffy; Reza Lorestany; Carolyn Lozo; Ronald Oineza; Jose Saldana; Mike Scheible; Aubrey Sideco; Manisha Singh; Susan Solarz; Jing Yuan

2011-01-01T23:59:59.000Z

331

Maximum entropy principal for transportation  

SciTech Connect

In this work we deal with modeling of the transportation phenomenon for use in the transportation planning process and policy-impact studies. The model developed is based on the dependence concept, i.e., the notion that the probability of a trip starting at origin i is dependent on the probability of a trip ending at destination j given that the factors (such as travel time, cost, etc.) which affect travel between origin i and destination j assume some specific values. The derivation of the solution of the model employs the maximum entropy principle combining a priori multinomial distribution with a trip utility concept. This model is utilized to forecast trip distributions under a variety of policy changes and scenarios. The dependence coefficients are obtained from a regression equation where the functional form is derived based on conditional probability and perception of factors from experimental psychology. The dependence coefficients encode all the information that was previously encoded in the form of constraints. In addition, the dependence coefficients encode information that cannot be expressed in the form of constraints for practical reasons, namely, computational tractability. The equivalence between the standard formulation (i.e., objective function with constraints) and the dependence formulation (i.e., without constraints) is demonstrated. The parameters of the dependence-based trip-distribution model are estimated, and the model is also validated using commercial air travel data in the U.S. In addition, policy impact analyses (such as allowance of supersonic flights inside the U.S. and user surcharge at noise-impacted airports) on air travel are performed.

Bilich, F. [University of Brasilia (Brazil); Da Silva, R. [National Research Council (Brazil)

2008-11-06T23:59:59.000Z

332

Stephen C. Ruppel Principal Investigator  

E-Print Network (OSTI)

in mudrocks (gas shale) characterization and research ·Research integrates a wide spectrum of disciplines ranging from sedimentology to gas chemistry to fractures to fluid flow. ·Researchers include geoscientists Shale, Texas, Louisiana ·Eagle Ford Shale, South Texas ·Pearsall Shale, Gulf Coast Basin ·Bakken Shale

Texas at Austin, University of

333

Principal Components Instrumental Variable Estimation  

E-Print Network (OSTI)

. The reason for the inconsistency is that the least squares estimation used for the projection of the first stage tends to fit too well, rendering an overfitted PKX which is still correlated with u if the number of instruments is large. The estimating... -dimensional IVE is just an IVE and as such possesses up to rn?G?2 moments, and thus it may achieve the performance in terms of bias of the ‘no moments’ estimators without displaying their unduly volatility due to fat tails. The fulfilment of condition (A) is key...

Winkelried, Diego; Smith, Richard J.

2011-01-31T23:59:59.000Z

334

1999 CBECS Principal Building Activities  

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

Data Reports > 2003 Building Characteristics Overview Data Reports > 2003 Building Characteristics Overview A Look at Building Activities in the 1999 Commercial Buildings Energy Consumption Survey The Commercial Buildings Energy Consumption Survey, or CBECS, covers a wide variety of building types—office buildings, shopping malls, hospitals, churches, and fire stations, to name just a few. Some of these buildings might not traditionally be considered "commercial," but the CBECS includes all buildings that are not residential, agricultural, or industrial. For an overview of definitions and examples of the CBECS building types, see Description of Building Types. Compare Activities by... Number of Buildings Building size Employees Building Age Energy Conservation Number of Computers Electricity Generation Capability

335

Review of air flow measurement techniques  

SciTech Connect

Airflow measurement techniques are necessary to determine the most basic of indoor air quality questions: ''Is there enough fresh air to provide a healthy environment for the occupants of the building?'' This paper outlines airflow measurement techniques, but it does not make recommendations for techniques that should be used. The airflows that will be discussed are those within a room or zone, those between rooms or zones, such as through doorways (open or closed) or passive vents, those between the building and outdoors, and those through mechanical air distribution systems. Techniques that are highlighted include particle streak velocimetry, hot wire anemometry, fan pressurization (measuring flow at a given pressure), tracer gas, acoustic methods for leak size determination, the Delta Q test to determine duct leakage flows, and flow hood measurements. Because tracer gas techniques are widely used to measure airflow, this topic is broken down into sections as follows: decay, pulse injection, constant injection, constant concentration, passive sampling, and single and multiple gas measurements for multiple zones.

McWilliams, Jennifer

2002-12-01T23:59:59.000Z

336

Category:Electromagnetic Sounding Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Sounding Techniques Electromagnetic Sounding Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Electromagnetic Sounding Techniques page? For detailed information on Electromagnetic Sounding Techniques, click here. Category:Electromagnetic Sounding Techniques Add.png Add a new Electromagnetic Sounding Techniques Technique Subcategories This category has only the following subcategory. M [×] Magnetotelluric Techniques‎ 1 pages Pages in category "Electromagnetic Sounding Techniques" The following 2 pages are in this category, out of 2 total. M Magnetotelluric Techniques T Time-Domain Electromagnetics Retrieved from "http://en.openei.org/w/index.php?title=Category:Electromagnetic_Sounding_Techniques&oldid=689837"

337

Definition: Remote Sensing Techniques | Open Energy Information  

Open Energy Info (EERE)

Remote Sensing Techniques Remote Sensing Techniques Jump to: navigation, search Dictionary.png Remote Sensing Techniques Remote sensing utilizes satellite and/or airborne based sensors to collect information about a given object or area. Remote sensing data collection methods can be passive or active. Passive sensors (e.g., spectral imagers) detect natural radiation that is emitted or reflected by the object or area being observed. In active remote sensing (e.g., radar) energy is emitted and the resultant signal that is reflected back is measured.[1] View on Wikipedia Wikipedia Definition Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object. In modern usage, the term generally refers to the use of aerial sensor technologies

338

Definition: Magnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Magnetic Techniques Magnetic Techniques Jump to: navigation, search Dictionary.png Magnetic Techniques The magnetic method is the study of the distribution of magnetic minerals in the upper 20-30km of the earth's crust. The magnetic method may also be used to estimate the thickness of the crust or to constrain temperatures in the crust using the Curie isotherm (the temperatures at which minerals lose their strong magnetic properties), whichever is shallower.[1] References ↑ http://www.ipgp.fr/~diament/Imageries%20Gravi-Mag/Nabighian_etal_Mag.pdf http://www.cflhd.gov/resources/agm/geoApplications/SurfaceMethods/911MagneticMethods.cfm http://onlinelibrary.wiley.com/doi/10.1029/JB087iB06p04846/abstract Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from

339

Definition: Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Techniques Electromagnetic Techniques The objective of electromagnetic (EM) techniques is to image the electrical resistivity structure of the subsurface through the measurement of naturally- or artificially-generated electromagnetic fields.[1] View on Wikipedia Wikipedia Definition The electromagnetic force is one of the four fundamental interactions in nature, the other three being the strong interaction, the weak interaction, and gravitation. This force is described by electromagnetic fields, and has innumerable physical instances including the interaction of electrically charged particles and the interaction of uncharged magnetic force fields with electrical conductors. The word electromagnetism is a compound form of two Greek terms, áŒąÎ»Î”ÎșÏ„ÏÎżÎœ, ēlektron, "amber", and ÎŒÎ±ÎłÎœÎźÏ„Î·Ï‚, magnētēs, "magnet". The science

340

Shock Timing Technique for the NIF  

Science Conference Proceedings (OSTI)

Among the final shots at the Nova laser was a series testing the VISAR technique that will be the primary diagnostic for timing the shocks in a NIF ignition capsule. At Nova, the VISAR technique worked over the range of shock strengths and with the precision required for the NIF shock timing job--shock velocities in liquid D{sub 2} from 12 {micro}m/ns to 65 {micro}m/ns with better than 2% accuracy. VISAR images showed stronger shocks overtaking weaker ones, which is the basis of the plan for setting the pulse shape for the NIF ignition campaign. The technique is so precise that VISAR measurements may also play a role in certifying beam-to-beam and shot-to-shot repeatability of NIF laser pulses.

Munro, D.H.; Celliers, P.M.; Collins, G.W.; Gold, D.M.; DaSilva, L.B.; Haan, S.W.; Cauble, R.C.; Hammel, B.A.; Hsing, W.W.

2000-10-03T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Ion Technique for Identifying Gamma Detector Candidates  

SciTech Connect

Recent demands for radiation detector materials with better energy resolution at room temperature have prompted research efforts on both accelerated material discovery and efficient analysis techniques. Ions can easily deposit their energy in thin films or small crystals and the radiation response can be used to identify material properties relevant to detector performance. In an effort to identify gamma detector candidates using small crystals or film samples, an ion technique is developed to measure relative light yield and energy resolution of candidate materials and to evaluate radiation detection performance. Employing a unique time-of-flight (TOF) telescope, light yield and energy resolution resulting from ion excitation are investigated over a continuous energy region. The efficiency of this ion technique is demonstrated using both organic (plastic scintillator) and inorganic (CaF2:Eu, YAP:Ce, CsI:Tl and BGO) scintillators.

Zhang, Yanwen; Xiang, Xia; Rausch, Julie L.; Zu, Xiaotao T.; Weber, William J.

2009-06-15T23:59:59.000Z

342

Definition: Magnetotelluric Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Magnetotelluric Techniques Jump to: navigation, search Dictionary.png Magnetotelluric Techniques Magnetotellurics is an electromagnetic geophysical method used to image the electrical resistivity structure of the subsurface through the measurement of electrical and magnetic fields at the earth's surface.[1] View on Wikipedia Wikipedia Definition Magnetotellurics (MT) is an electromagnetic geophysical method of imaging the earth's subsurface by measuring natural variations of electrical and magnetic fields at the Earth's surface. Investigation depth ranges from 300m below ground by recording higher frequencies down to 10,000m or deeper with long-period soundings. Developed in Russia and

343

Tensor transformation technique for the transport equation  

SciTech Connect

A step-wise tensor transformation technique is presented for the transformation of the single energy group transport equation to an arbitrary spatial coordinate system. Both gradient and divergence forms of the equation are given and the same method is applied to the derivation of the diffusion approximation. It is demonstrated that using an orthogonal representation of the propagation vector will simplify the divergence form of the equation. The application of this technique is in the representation of the transport equation in coordinate systems other than the usual rectangular, cylindrical and spherical ones. Its use is demonstrated by transforming the transport equation to a toroidal coordinate system consisting of nested circular toroids. (auth)

Gralnick, S.L.

1975-10-01T23:59:59.000Z

344

Techniques for Enhanced Physical-Layer Security  

E-Print Network (OSTI)

Information-theoretic security--widely accepted as the strictest notion of security--relies on channel coding techniques that exploit the inherent randomness of propagation channels to strengthen the security of communications systems. Within this paradigm, we explore strategies to improve secure connectivity in a wireless network. We first consider the intrinsically secure communications graph (iS-graph), a convenient representation of the links that can be established with information-theoretic security on a large-scale network. We then propose and characterize two techniques--sectorized transmission and eavesdropper neutralization--which are shown to dramatically enhance the connectivity of the iS-graph.

Pinto, Pedro C; Win, Moe Z

2010-01-01T23:59:59.000Z

345

Definition: Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Geophysical Techniques Jump to: navigation, search Dictionary.png Geophysical Techniques Geophysics is the study of the structure and composition of the earth's interior.[1] View on Wikipedia Wikipedia Definition Exploration geophysics is the applied branch of geophysics which uses surface methods to measure the physical properties of the subsurface Earth, along with the anomalies in these properties, in order to detect or infer the presence and position of ore minerals, hydrocarbons, geothermal reservoirs, groundwater reservoirs, and other geological structures. Exploration geophysics is the practical application of physical methods (such as seismic, gravitational, magnetic, electrical and electromagnetic)

346

NonBlackBox Techniques in Cryptography  

E-Print Network (OSTI)

Non­Black­Box Techniques in Cryptography Thesis for the Ph.D. Degree by Boaz Barak Under ``Black­Box'' as ``A device or theoretical construct with known or specified performance characteristics a program as a black­box means to use only its input/output relation by executing the program on chosen

Goldreich, Oded

347

Non-Black-Box Techniques in Cryptography  

E-Print Network (OSTI)

Non-Black-Box Techniques in Cryptography Thesis for the Ph.D. Degree by Boaz Barak Under dictionary defines the term "Black-Box" as "A device or theoretical construct with known or specified of Computer Science, to use a program as a black-box means to use only its input/output relation by executing

Barak, Boaz

348

Clustering techniques for open relation extraction  

Science Conference Proceedings (OSTI)

This work investigates clustering techniques for Relation Extraction (RE). Relation Extraction is the task of extracting relationships among named entities (e.g., people, organizations and geo-political entities) from natural language text. We are particularly ... Keywords: relation extraction, text clustering

Filipe Mesquita

2012-05-01T23:59:59.000Z

349

Verification Techniques for System-Level Design  

Science Conference Proceedings (OSTI)

This book will explain how to verify SoC logic designs using "formal" and "semi-formal" verification techniques. The critical issue to be addressed is whether the functionality of the design is the one that the designers intended. Simulation has been ... Keywords: Circuits, Electricity, Microelectronics

Masahiro Fujita; Indradeep Ghosh; Mukul Prasad

2007-10-01T23:59:59.000Z

350

Best practice techniques for environmental radiological monitoring  

E-Print Network (OSTI)

/Medium Volume Air Sampling (HVAS/MVAS). #12;Science Report Best Practice Techniques for Environmental Community FSA: Food Standards Agency H2O2: Hydrogen peroxide HPA: Health Protection Agency HVAS/MVAS: High/monitoring type code Terrestrial dose rate monitoring T1 Air passive shades and HVAS/MVAS T2 Wet, dry, total

351

Soft computing techniques in ensemble precipitation nowcast  

Science Conference Proceedings (OSTI)

This study presented various soft computing techniques for forecasting the hourly precipitations during tropical cyclones. The purpose of the current study is to present a concise and synthesized documentation of the current level of skill of various ... Keywords: Forecast, Machine learning, Rainfall, Skill score

Chih-Chiang Wei

2013-02-01T23:59:59.000Z

352

Semantic optimization techniques for preference queries  

Science Conference Proceedings (OSTI)

Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). Such queries are parameterized by specific preference relations. Semantic optimization techniques ... Keywords: Integrity constraints, Preference queries, Query evaluation, Query optimization

Jan Chomicki

2007-07-01T23:59:59.000Z

353

An Improved, Free Surface, Topographic Technique  

Science Conference Proceedings (OSTI)

Current techniques of water wave visualization such as shadowgraphy and stereo photography are widely used but are deficient in many aspects. Refraction based visualization observes the bending of light as it traverses across a liquid-air interface. ... Keywords: Free Surface, PIV, Topography, Visualization

A. Fouras; K. Hourigan; M. Kawahashi; H. Hirahara

2006-01-01T23:59:59.000Z

354

Adaptive Techniques for Homebased Software DSMs #  

E-Print Network (OSTI)

Adaptive Techniques for Home­based Software DSMs # Lauro Whately 1 , Raquel Pinto 1 , Muralidharan and evaluates Home­based Adaptive Protocol (HAP), a software distributed shared­memory system. HAP performs two with the adaptive system. Keywords---Software Distributed Shared Memory, Home­basedLazy Release Consistency, Home­based

Bianchini, Ricardo

355

A TOMOGRAPHIC TECHNIQUE FOR MAGNETIZED BEAM MATCHING.  

Science Conference Proceedings (OSTI)

To maintain low electron beam temperatures in the proposed RHIC electron cooler, careful matching of the magnetized beam from the source to the cooler solenoid is mandatory. We propose a tomographic technique to diagnose matching conditions. First simulation results will be presented.

MONTAG,C.ET AL.

2004-07-05T23:59:59.000Z

356

Lipid Analysis and Lipidomics: New Techniques & ApplicationChapter 1 Techniques and Applications in Lipid Analysis  

Science Conference Proceedings (OSTI)

Lipid Analysis and Lipidomics: New Techniques & Application Chapter 1 Techniques and Applications in Lipid Analysis Methods and Analyses eChapters Methods - Analyses Books 6BFA9B7918529F3FEC884BD9D5F59B4A AOCS Press D

357

Using digital filtering techniques as an aid in wind turbine data analysis  

DOE Green Energy (OSTI)

Research involving very large sets of digital data is often difficult due to the enormity of the database. In the case of a wind turbine operating under varying environmental conditions, determining which data are representative of the blade aerodynamics and which are due to transient flow ingestion effects or errors in instrumentation, operation, and data collection is of primary concern to researchers. The National Renewable Energy Laboratory in Golden, Colorado collected extensive data on a downwind horizontal axis wind turbine (HAWT) during a turbine test project called the Combined Experiment. A principal objective of this experiment was to provide a means to predict HAWT aerodynamic, mechanical, and electrical operational loads based upon analytical models of aerodynamic performance related to blade design and inflow conditions. In a collaborative effort with the Aerospace Engineering Department at the University of Colorado at Boulder, a team of researchers has evolved and utilized various digital filtering techniques in analyzing the data from the Combined Experiment. A preliminary analysis of the data set was performed to determine how to best approach the data. The reduced data set emphasized selection of inflow conditions such that the aerodynamic data could be compared directly to wind tunnel data obtained for the same airfoil design as used for the HAWT`s blades. It will be shown that this reduced data set has yielded valid, reproducible results that a simple averaging technique or a random selection approach cannot achieve. These findings provide a stable baseline against which operational HAWT data can be compared.

Young, T. [Univ. of Colorado, Boulder, CO (United States). BioServe Space Technologies

1994-11-01T23:59:59.000Z

358

Category:Data and Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

and Modeling Techniques and Modeling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Data and Modeling Techniques page? For detailed information on Data and Modeling Techniques as exploration techniques, click here. Category:Data and Modeling Techniques Add.png Add a new Data and Modeling Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. D [×] Data Techniques‎ 3 pages M [×] Modeling Techniques‎ 5 pages Pages in category "Data and Modeling Techniques" The following 2 pages are in this category, out of 2 total. D Data Techniques M Modeling Techniques Retrieved from "http://en.openei.org/w/index.php?title=Category:Data_and_Modeling_Techniques&oldid=689801"

359

Definition: Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Seismic methods provide information regarding the elastic properties of the subsurface through the measurement of the propagation velocity of elastic waves.[1] View on Wikipedia Wikipedia Definition Seismology /saÉȘzˈmɒlədʒi/ is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies. The field also includes studies of earthquake effects, such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, oceanic, atmospheric, and artificial processes (such as explosions). A related field that uses geology to infer information regarding past earthquakes is paleoseismology. A recording of earth motion as a function of time is called a seismogram. A seismologist

360

Tools and techniques for Network Forensics  

E-Print Network (OSTI)

Network forensics deals with the capture, recording and analysis of network events in order to discover evidential information about the source of security attacks in a court of law. This paper discusses the different tools and techniques available to conduct network forensics. Some of the tools discussed include: eMailTrackerPro to identify the physical location of an email sender; Web Historian to find the duration of each visit and the files uploaded and downloaded from the visited website; packet sniffers like Etherea to capture and analyze the data exchanged among the different computers in the network. The second half of the paper presents a survey of different IP traceback techniques like packet marking that help a forensic investigator to identify the true sources of the attacking IP packets. We also discuss the use of Honeypots and Honeynets that gather intelligence about the enemy and the tools and tactics of network intruders.

Meghanathan, Natarajan; Moore, Loretta A

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Target Dependent Score Normalization Techniques and . . .  

E-Print Network (OSTI)

Score normalization methods in biometric verification, which encompass the more traditional user-dependent decision thresholding techniques, are reviewed from a test hypotheses point of view. These are classified into test dependent and target dependent methods. The focus of the paper is on target dependent methods, which are further classified into impostor-centric, target-centric and target-impostor. These are applied to an on-line signature verification system on signature data from SVC 2004. In particular, a target-centric technique based on a variant of the cross-validation procedure provides the best relative performance improvement both for skilled (19%) and random forgeries (53%) as compared to the raw verification performance without score normalization (7.14% EER and 1.06% EER for skilled and random forgeries respectively).

J. Fierrez-Aguilar; J. Ortega-Garcia; J. Gonzalez-Rodriguez

2005-01-01T23:59:59.000Z

362

Innovative techniques cut costs in wetlands drilling  

Science Conference Proceedings (OSTI)

This paper reports on an approach to drilling oil and gas wells in sensitive wetlands areas contributed to a savings of over $1.2 million on a three-well, $3 million drilling project in south Louisiana. ARCO Oil and Gas Co. drilled a three-well project in the Bayou Sale field with a truck-mounted workover rig and a modified solids-control system. This smaller equipment eliminated the need to build a large location in the marsh. Traditional drilling techniques require a large drillsite to accommodate all the equipment of a modern drilling complex. However, recently imposed environmental regulations substantially limit, and in some cases prohibit, the use of these conventional techniques for drilling wells in wetlands areas. Based on the potentially huge economic and operational impact on the drilling industry because of these stricter regulations, alternatives to these traditional practices are essential.

Navarro, A.R. (ARCO Oil and Gas Co., Lafayette, LA (US))

1991-10-14T23:59:59.000Z

363

Active load control techniques for wind turbines.  

DOE Green Energy (OSTI)

This report provides an overview on the current state of wind turbine control and introduces a number of active techniques that could be potentially used for control of wind turbine blades. The focus is on research regarding active flow control (AFC) as it applies to wind turbine performance and loads. The techniques and concepts described here are often described as 'smart structures' or 'smart rotor control'. This field is rapidly growing and there are numerous concepts currently being investigated around the world; some concepts already are focused on the wind energy industry and others are intended for use in other fields, but have the potential for wind turbine control. An AFC system can be broken into three categories: controls and sensors, actuators and devices, and the flow phenomena. This report focuses on the research involved with the actuators and devices and the generated flow phenomena caused by each device.

van Dam, C.P. (University of California, Davis, CA); Berg, Dale E.; Johnson, Scott J. (University of California, Davis, CA)

2008-07-01T23:59:59.000Z

364

Managed pressure drilling techniques and tools  

E-Print Network (OSTI)

The economics of drilling offshore wells is important as we drill more wells in deeper water. Drilling-related problems, including stuck pipe, lost circulation, and excessive mud cost, show the need for better drilling technology. If we can solve these problems, the economics of drilling the wells will improve, thus enabling the industry to drill wells that were previously uneconomical. Managed pressure drilling (MPD) is a new technology that enables a driller to more precisely control annular pressures in the wellbore to prevent these drillingrelated problems. This paper traces the history of MPD, showing how different techniques can reduce drilling problems. MPD improves the economics of drilling wells by reducing drilling problems. Further economic studies are necessary to determine exactly how much cost savings MPD can provide in certain situation. Furter research is also necessary on the various MPD techniques to increase their effectiveness.

Martin, Matthew Daniel

2003-05-01T23:59:59.000Z

365

A Radiographic Technique With Heavy Ion Microbeams  

SciTech Connect

In this work, we introduce a new technique to perform densitometric and multielemental analysis of samples at the same time using a simple detector with heavy ion micro-beams. It consists in the simultaneous analysis of X-rays induced in the sample and in a secondary target arranged behind the specimen. The X-rays originated in the secondary target are attenuated when crossing the specimen producing a radiographic image with a monochromatic source.

Muscio, J. [ECyT, UNSAM, 1650 San Martin, Buenos Aires (Argentina); Somacal, H.; Burlon, A. A.; Debray, M. E.; Valda, A. A. [ECyT, UNSAM, 1650 San Martin, Buenos Aires (Argentina); U.A. Fisica, Laboratorio TANDAR, CNEA, 1650 San Martin, Buenos Aires (Argentina); Kreiner, A. J. [U.A. Fisica, Laboratorio TANDAR, CNEA, 1650 San Martin, Buenos Aires (Argentina); ECyT, UNSAM, 1650 San Martin, Buenos Aires (Argentina); CONICET (Argentina); Kesque, J. M.; Minsky, D. M. [U.A. Fisica, Laboratorio TANDAR, CNEA, 1650 San Martin, Buenos Aires (Argentina)

2007-02-12T23:59:59.000Z

366

Downhole drilling network using burst modulation techniques  

DOE Patents (OSTI)

A downhole drilling system is disclosed in one aspect of the present invention as including a drill string and a transmission line integrated into the drill string. Multiple network nodes are installed at selected intervals along the drill string and are adapted to communicate with one another through the transmission line. In order to efficiently allocate the available bandwidth, the network nodes are configured to use any of numerous burst modulation techniques to transmit data.

Hall; David R. (Provo, UT), Fox; Joe (Spanish Fork, UT)

2007-04-03T23:59:59.000Z

367

Consider trigeneration techniques for process plants  

SciTech Connect

Trigeneration has, until recently, been used exclusively for air conditioning systems with small or moderate capacities. However, with more recent chiller packages providing larger capacities, and with modern cogeneration applications, trigeneration is now open to a wider range of process applications. It can provide tremendous hydrocarbon processing industry opportunities for more economical use of energy. Cogeneration is the most widely used technique for producing heat and power. If refrigeration is also produced form the same energy source, then the cogeneration simply becomes trigeneration. The technique is not new, it is commonly used in district heating and cooling schemes. However, trigeneration is being used more in the oil and gas, and petrochemical industries as three products--heat, power and refrigeration--are frequently needed in many modern processes. Moreover, this technique provides a wide scope for technical advances. The paper discusses the equipment needed as driver, waste heat recovery, refrigeration equipment, thermodynamics, capacity size limits, different trigeneration configurations, economics, and design enhancements to improve operating economy.

Dharmadhikari, S. [Ingerop, Paris (France)

1997-07-01T23:59:59.000Z

368

Balanced pressure techniques applied to geothermal drilling  

DOE Green Energy (OSTI)

The objective of the study is to evaluate balanced pressure drilling techniques for use in combating lost circulation in geothermal drilling. Drilling techniques evaluated are: aerated drilling mud, parasite tubing, concentric drill pipe, jet sub, and low density fluids. Based on the present state of the art of balanced pressure drilling techniques, drilling with aerated water has the best overall balance of performance, risk, availability, and cost. Aerated water with a 19:1 free air/water ratio reduce maximum pressure unbalance between wellbore and formation pressures from 1000 psi to 50 psi. This pressure unbalance is within acceptable operating limits; however, air pockets could form and cause pressure surges in the mud system due to high percent of air. Low density fluids used with parasite tubing has the greatest potential for combating lost circulation in geothermal drilling, when performance only is considered. The top portion of the hole would be aerated through the parasite tube at a 10:1 free air/mud ratio and the low density mud could be designed so that its pressure gradient exactly matches the formation pore pressure gradient. The main problem with this system at present is the high cost of ceramic beads needed to produce low density muds.

Dareing, D.W.

1981-08-01T23:59:59.000Z

369

Research review: Indoor air quality control techniques  

Science Conference Proceedings (OSTI)

Techniques for controlling the concentration of radon, formaldehyde, and combustion products in the indoor air are reviewed. The most effective techniques, which are generally based on limiting or reducing indoor pollutant source strengths, can decrease indoor pollutant concentrations by a factor of 3 to 10. Unless the initial ventilation rate is unusually low, it is difficult to reduce indoor pollutant concentrations more than approximately 50% by increasing the ventilation rate of an entire building. However, the efficiency of indoor pollutant control by ventilation can be enhanced through the use of local exhaust ventilation near concentrated sources of pollutants, by minimizing short circuiting of air from supply to exhaust when pollutant sources are dispersed and, in some situations, by promoting a displacement flow of air and pollutants toward the exhaust. Active air cleaning is also examined briefly. Filtration and electrostatic air cleaning for removal of particles from the indoor air are the most practical and effective currently available techniques of air cleaning. 49 refs., 7 figs.

Fisk, W.J.

1986-10-01T23:59:59.000Z

370

Well Log Techniques At Newberry Caldera Area (DOE GTP) | Open...  

Open Energy Info (EERE)

Newberry Caldera Area (DOE GTP) Exploration Activity Details Location Newberry Caldera Area Exploration Technique Well Log Techniques Activity Date Usefulness not indicated...

371

Techniques of Nanoscale Silicon Texturing of Solar Cells ...  

Patent 6,329,296: Metal catalyst technique for texturing silicon solar cells Textured silicon solar cells and techniques for their manufacture ...

372

Applications of 3D Experimental Techniques Across Length Scales  

Science Conference Proceedings (OSTI)

Jul 11, 2012... Experimental Techniques Across Length Scales: Non-Destructive Techniques .... The efficient image-processing pipeline provides a full 3D ...

373

ALS Scientists Patent Technique To Dramatically Advance Grating...  

NLE Websites -- All DOE Office Websites (Extended Search)

ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy Print Tuesday,...

374

Category:Passive Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Passive Seismic Techniques page? For detailed information on Passive Seismic Techniques,...

375

Category:Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Ground Electromagnetic Techniques page? For detailed information on Ground Electromagnetic Techniques, click here. Category:Ground Electromagnetic Techniques Add.png Add a new Ground Electromagnetic Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. E [×] Electromagnetic Profiling Techniques‎ 1 pages [+] Electromagnetic Sounding Techniques‎ (1 categories) 2 pages Pages in category "Ground Electromagnetic Techniques" The following 2 pages are in this category, out of 2 total. E Electromagnetic Profiling Techniques Electromagnetic Sounding Techniques Retrieved from "http://en.openei.org/w/index.php?title=Category:Ground_Electromagnetic_Techniques&oldid=689834"

376

Image Recognition Techniques for Gamma Spectroscopy  

SciTech Connect

Photons, after generated from a radioactive source and before they deposit their energy in a photo detector, are subsequent to multiple scattering mechanisms. As a result, the measured energy from the photo detector is different from the energy the photon had when generated. This is known as folding of the photon energy. Moreover, statistical fluctuation inside the detector contribute to energy folding. In this work, a new method is presented for unfolding the gamma ray spectrum. The method uses a 2-dimensional representation of the measured spectrum (image) and then uses image recognition techniques, and especially differential edge detection, to generate the original spectrum.

Vlachos, D. S. [University of Peloponnese, 22100 Tripoli (Greece); Tsabaris, C. G. [Hellenic Center for Marine Research, 19013 Athens (Greece)

2007-12-26T23:59:59.000Z

377

Geologic flow characterization using tracer techniques  

DOE Green Energy (OSTI)

A new tracer flow-test system has been developed for in situ characterization of geologic formations. This report describes two sets of test equipment: one portable and one for testing in deep formations. Equations are derived for in situ detector calibration, raw data reduction, and flow logging. Data analysis techniques are presented for computing porosity and permeability in unconfined isotropic media, and porosity, permeability and fracture characteristics in media with confined or unconfined two-dimensional flow. The effects of tracer pulse spreading due to divergence, dispersion, and porous formations are also included.

Klett, R. D.; Tyner, C. E.; Hertel, Jr., E. S.

1981-04-01T23:59:59.000Z

378

Dismantling techniques for reactor steel piping  

SciTech Connect

Two cutting techniques have been developed for dismantling the pipes connected to the Japan Power Demonstration Reactor (JPDR) pressure vessel. They are the rotary disk knife cutting system for dismantling relatively large pipes, such as the primary cooling system, and the shaped explosive cutting systems for cutting relatively small pipes in air or water. Basic cutting tests were performed to determine the optimum characteristics of the cutting systems and to conduct a safety evaluation by studying the effects of blasting on surrounding areas. Mock-up tests confirmed the applicability of the newly developed dismantling systems for JPDR dismantlement by successfully cutting test pipes with these systems.

Yanagihara, S.; Hiraga, F.; Nakamura, H. (Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan))

1989-08-01T23:59:59.000Z

379

Inverse Raman effect: applications and detection techniques  

SciTech Connect

The processes underlying the inverse Raman effect are qualitatively described by comparing it to the more familiar phenomena of conventional and stimulated Raman scattering. An experession is derived for the inverse Raman absorption coefficient, and its relationship to the stimulated Raman gain is obtained. The power requirements of the two fields are examined qualitatively and quantitatively. The assumption that the inverse Raman absorption coefficient is constant over the interaction length is examined. Advantages of the technique are discussed and a brief survey of reported studies is presented.

Hughes, L.J. Jr.

1980-08-01T23:59:59.000Z

380

Category:Borehole Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Borehole Seismic Techniques page? Borehole Seismic Techniques page? For detailed information on Borehole Seismic Techniques as exploration techniques, click here. Category:Borehole Seismic Techniques Add.png Add a new Borehole Seismic Techniques Technique Pages in category "Borehole Seismic Techniques" The following 2 pages are in this category, out of 2 total. S Single-Well And Cross-Well Seismic V Vertical Seismic Profiling Retrieved from "http://en.openei.org/w/index.php?title=Category:Borehole_Seismic_Techniques&oldid=601962" Category: Downhole Techniques What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services OpenEI partners with a broad range of international organizations to grow

Note: This page contains sample records for the topic "dual-doppler techniques principal" from the National Library of EnergyBeta (NLEBeta).
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381

Petroleum Engineering Techniques for HLW Disposal  

Science Conference Proceedings (OSTI)

This paper describes why petroleum engineering techniques are of importance and can be used for underground disposal of HLW (high-level radioactive waste). It is focused on rock salt as a geological host medium in combination with disposal of the HLW canisters in boreholes drilled from the surface. Both permanent disposal and disposal with the option to retrieve the waste are considered. The paper starts with a description of the disposal procedure. Next disposal in deep boreholes is treated. Then the possible use of deviated boreholes and of multiple boreholes is discussed. Also waste isolation aspects and the implications of the HLW heat generation are treated. It appears that the use of deep boreholes can be beneficial, and also that--to a certain extent--borehole deviation offers possibilities. The benefits of using multiple boreholes are questionable for permanent disposal, while this technique cannot be applied for retrievable disposal. For the use of casing material, the additional temperature rise due to the HLW heat generation must be taken into account.

van den Broek, W. M. G. T.

2002-02-25T23:59:59.000Z

382

Opening criteria for accelerated paving techniques  

E-Print Network (OSTI)

Fast track paving or accelerated pavement design is the rapid replacement of portland cement concrete pavement, allowing for the reopening to traffic under specific time requirements. The purpose of this research is to develop opening criteria for accelerated paving and implementing these criteria into a set of guidelines for fast track paving. This report is broken into three specific sections; review of practice, an analysis of field and lab research, and finally design guidelines for the opening criteria for accelerated paving techniques. A review of practice was developed to update the reader on the current "state of the art". This review outlines contruction techniques, fast track mix design, pavement design, and joint design. The analysis of field and lab research provides a synopsis of the experimentation used to develop design guidelines for opening criteria. This section includes crack surveys, coring tests, FWD testing, maturity testing, penetration testing and consistency testing. The design guidelines for early opening criteria provides guidelines for use in intersection design. The guideline outlines requirements for design, design of concrete pavement materials, mixture design, construction considerations, and requirements for opening criteria. This document will update the reader on the subject of fast track paving and the methods used to research it. Finally, with a design guidelines the reader will be able to apply the methods of analysis described in the field and lab testing section to create better pavements more efficiently.

Johnson, Jason Leonard

1993-01-01T23:59:59.000Z

383

Automatic Mirror Alignment for VIRGO: First experimental demonstration of the Anderson technique on a large-scale interferometer  

E-Print Network (OSTI)

The French-Italian interferometric gravitational wave detector VIRGO is currently being commissioned. Its principal instrument is a Michelson laser interferometer with 3 km long optical cavities in the arms and a power-recycling mirror. The interferometer resides in an ultra-high vacuum system and the mirrors are suspended from multistage pendulums for seismic isolation. This type of laser interferometer reaches its maximum sensitivity only when the optical setup is held actively very accurately at a defined operating point: control systems using the precise interferometer signals stabilise the longitudinal and angular positions of the optical component. This paper gives an overview of the control system for the angular degrees of freedom; we present the current status of the system and report the first experimental demonstration of the Anderson technique on a large-scale interferometer.

A. Freise; for the VIRGO Collaboration

2004-11-24T23:59:59.000Z

384

Quantitative Analysis of the Principal-Agent Problem in Commercial Buildings in the U.S.: Focus on Central Space Heating and Cooling  

SciTech Connect

We investigate the existence of the principal-agent (PA) problem in non-government, non-mall commercial buildings in the U.S. in 2003. The analysis concentrates on space heating and cooling energy consumed by centrally installed equipment in order to verify whether a market failure caused by the PA problem might have prevented the installation of energy-efficient devices in non-owner-occupied buildings (efficiency problem) and/or the efficient operation of space-conditioning equipment in these buildings (usage problem). Commercial Buildings Energy Consumption Survey (CBECS) 2003 data for single-owner, single-tenant and multi-tenant occupied buildings were used for conducting this evaluation. These are the building subsets with the appropriate conditions for assessing both the efficiency and the usage problems. Together, these three building types represent 51.9percent of the total floor space of all buildings with space heating and 59.4percent of the total end-use energy consumption of such buildings; similarly, for space cooling, they represent 52.7percent of floor space and 51.6percent of energy consumption. Our statistical analysis shows that there is a usage PA problem. In space heating it applies only to buildings with a small floor area (<_50,000 sq. ft.). We estimate that in 2003 it accounts for additional site energy consumption of 12.3 (+ 10.5 ) TBtu (primary energy consumption of 14.6 [+- 12.4] TBtu), corresponding to 24.0percent (+- 20.5percent) of space heating and 10.2percent (+- 8.7percent) of total site energy consumed in those buildings. In space cooling, however, the analysis shows that the PA market failure affects the complete set of studied buildings. We estimate that it accounts for a higher site energy consumption of 8.3 (+-4.0) TBtu (primary energy consumption of 25.5 [+- 12.2]TBtu), which corresponds to 26.5percent (+- 12.7percent) of space cooling and 2.7percent (+- 1.3percent) of total site energy consumed in those buildings.

Blum, Helcio; Sathaye, Jayant

2010-05-14T23:59:59.000Z

385

Dosimetry tools and techniques for IMRT  

Science Conference Proceedings (OSTI)

Intensity modulated radiation therapy (IMRT) poses a number of challenges for properly measuring commissioning data and quality assurance (QA) radiation dose distributions. This report provides a comprehensive overview of how dosimeters, phantoms, and dose distribution analysis techniques should be used to support the commissioning and quality assurance requirements of an IMRT program. The proper applications of each dosimeter are described along with the limitations of each system. Point detectors, arrays, film, and electronic portal imagers are discussed with respect to their proper use, along with potential applications of 3D dosimetry. Regardless of the IMRT technique utilized, some situations require the use of multiple detectors for the acquisition of accurate commissioning data. The overall goal of this task group report is to provide a document that aids the physicist in the proper selection and use of the dosimetry tools available for IMRT QA and to provide a resource for physicists that describes dosimetry measurement techniques for purposes of IMRT commissioning and measurement-based characterization or verification of IMRT treatment plans. This report is not intended to provide a comprehensive review of commissioning and QA procedures for IMRT. Instead, this report focuses on the aspects of metrology, particularly the practical aspects of measurements that are unique to IMRT. The metrology of IMRT concerns the application of measurement instruments and their suitability, calibration, and quality control of measurements. Each of the dosimetry measurement tools has limitations that need to be considered when incorporating them into a commissioning process or a comprehensive QA program. For example, routine quality assurance procedures require the use of robust field dosimetry systems. These often exhibit limitations with respect to spatial resolution or energy response and need to themselves be commissioned against more established dosimeters. A chain of dosimeters, from secondary standards to field instruments, is established to assure the quantitative nature of the tests. This report is intended to describe the characteristics of the components of these systems; dosimeters, phantoms, and dose evaluation algorithms. This work is the report of AAPM Task Group 120.

Low, Daniel A.; Moran, Jean M.; Dempsey, James F.; Dong Lei; Oldham, Mark [Washington University, St. Louis, Missouri 63110 (United States); University of Michigan, Ann Arbor, Michigan 48109 (United States); Viewray Incorporated, Cleveland, Ohio 44106 (United States); M. D. Anderson Cancer Center, Houston, Texas 77013 (United States); Duke University Medical Center, Durham, North Carolina 27710 (United States)

2011-03-15T23:59:59.000Z

386

Evaluating Permeability Enchancement Using Electrical Techniques  

DOE Green Energy (OSTI)

Enhanced Geothermal Systems (EGS) development projects involve the artificial stimulation of relatively impermeable high-temperature underground regions (at depths of 2-4 kilometers or more) to create sufficient permeability to permit underground fluid circulation, so that hot water can be withdrawn from production wells and used to generate electric power. Several major research projects of this general type have been undertaken in the past in New Mexico (Fenton Hill), Europe, Japan and Australia. Recent U.S. activities along these lines focus mainly on stimulating peripheral areas of existing operating hydrothermal fields rather than on fresh 'greenfield' sites, but the long-term objective of the Department of Energy's EGS program is the development of large-scale power projects based on EGS technology (MIT, 2006; NREL, 2008). Usually, stimulation is accomplished by injecting water into a well at high pressure, enhancing permeability by the creation and propagation of fractures in the surrounding rock (a process known as 'hydrofracturing'). Beyond just a motivation, low initial system permeability is also an essential prerequisite to hydrofracturing. If the formation permeability is too high, excessive fluid losses will preclude the buildup of sufficient pressure to fracture rock. In practical situations, the actual result of injection is frequently to re-open pre-existing hydrothermally-mineralized fractures, rather than to create completely new fractures by rupturing intact rock. Pre-existing fractures can often be opened using injection pressures in the range 5-20 MPa. Creation of completely new fractures will usually require pressures that are several times higher. It is preferable to undertake development projects of this type in regions where tectonic conditions are conducive to shear failure, so that when pre-existing fractures are pressurized they will fail by shearing laterally. If this happens, the fracture will often stay open afterwards even if injection subsequently ceases. The principal barrier to EGS utilization for electricity generation is project economics. Costs for geothermal electricity obtained from conventional hydrothermal systems are just marginally competitive. Unless and until the costs of routinely and reliably creating and exploiting artificial subterranean fracture networks that can deliver useful quantities of hot fluid to production wells for long periods of time (years) are reduced to levels comparable to those of a conventional geothermal development project, EGS will be of little interest to the electrical power industry. A significant obstacle to progress in projects of this general type is the difficulty of appraising the properties (geometry, fluid transmissivity, etc.) of the fracture(s) created/re-opened by injection. Sustainability of power production is critically dependent upon reservoir thermal sweep efficiency, which depends in turn on the geometry of the fracture network and its interconnections with the various production and injection wells used to circulate fluid underground. If no permeable connections are created between the wells, fluid flow will be too slow for practical utility. If the connections are too good, however (such as a production/injection well pair connected by a single very permeable fracture), production wellhead temperatures will decline rapidly. Unless the permeable fractures created by hydrofracturing can be accurately mapped, the cost of subsequent trial-and-error drilling to try to establish a suitable fluid circulation system is likely to dominate project economics and render EGS impractical.

John W. Pritchett

2008-09-01T23:59:59.000Z

387

Technique for ship/wake detection  

DOE Patents (OSTI)

An automated ship detection technique includes accessing data associated with an image of a portion of Earth. The data includes reflectance values. A first portion of pixels within the image are masked with a cloud and land mask based on spectral flatness of the reflectance values associated with the pixels. A given pixel selected from the first portion of pixels is unmasked when a threshold number of localized pixels surrounding the given pixel are not masked by the cloud and land mask. A spatial variability image is generated based on spatial derivatives of the reflectance values of the pixels which remain unmasked by the cloud and land mask. The spatial variability image is thresholded to identify one or more regions within the image as possible ship detection regions.

Roskovensky, John K. (Albuquerque, NM)

2012-05-01T23:59:59.000Z

388

Techniques and methods in nuclear materials traceability  

SciTech Connect

The nonproliferation community is currently addressing concerns that the access to special nuclear materials may increase the illicit trafficking in weapons-usable materials from civil and/or weapons material stores and/or fuel cycles systems. Illicit nuclear traffic usually involves reduced quantities of nuclear materials perhaps as samplings of a potential protracted diversionary flow from sources to users. To counter illicit nuclear transactions requires the development of techniques and methods in nuclear material traceability as an important phase of a broad forensic analysis capability. This report discusses how isotopic signatures and correlation methods were applied to determine the origins of Highly Enriched Uranium (HEU) and Plutonium samples reported as illicit trafficking in nuclear materials.

Persiani, P.J.

1996-08-01T23:59:59.000Z

389

RFID tags: Positioning principles and localization techniques  

E-Print Network (OSTI)

Abstract—RFID is an automatic identification technology that enables tracking of people and objects. Both identity and location are generally key information for indoor services. An obvious and interesting method to obtain these two types of data is to localize RFID tags attached to devices or objects or carried by people. However, signals in indoor environments are generally harshly impaired and tags have very limited capabilities which pose many challenges for positioning them. In this work, we propose a classification and survey the current state-of-art of RFID localization by first presenting this technology and positioning principles. Then, we explain and classify RFID localization techniques. Finally, we discuss future trends in this domain. Index Terms—RFID, localization, positioning algorithm. I.

Mathieu Bouet; Aldri L. Dos Santos

2008-01-01T23:59:59.000Z

390

Customising Graphics Applications: Techniques and Programming Interface  

E-Print Network (OSTI)

This paper identifies opportunities for customising architectures for graphics applications, such as infrared simulation and geometric visualisation. We have studied methods for exploiting custom data formats and datapath widths, and for optimising graphics operations such as texture mapping and hidden-surface removal. Techniques for balancing the graphics pipeline and for runtime reconfiguration have been implemented. The customised architectures are captured in Handel-C, a Clike language supporting parallelism and flexible data size, and compiled for Xilinx 4000 and Virtex FPGAs. We have also developed an application programming interface based on the OpenGL standard for automatic speedup of graphics applications, including the Quake 2 action game. 1 Introduction Despite tremendous progress in the last thirty years, real-time generation of realistic images still offers many challenges. The demand for realism requires improvement in algorithms, frame rate and resolution, while the v...

Henry Styles And; Henry Styles; Wayne Luk

2000-01-01T23:59:59.000Z

391

Techniques for Intravascular Foreign Body Retrieval  

SciTech Connect

As endovascular therapies increase in frequency, the incidence of lost or embolized foreign bodies is increasing. The presence of an intravascular foreign body (IFB) is well recognized to have the potential to cause serious complications. IFB can embolize and impact critical sites such as the heart, with subsequent significant morbidity or mortality. Intravascular foreign bodies most commonly result from embolized central line fragments, but they can originate from many sources, both iatrogenic and noniatrogenic. The percutaneous approach in removing an IFB is widely perceived as the best way to retrieve endovascular foreign bodies. This minimally invasive approach has a high success rate with a low associated morbidity, and it avoids the complications related to open surgical approaches. We examined the characteristics, causes, and incidence of endovascular embolizations and reviewed the various described techniques that have been used to facilitate subsequent explantation of such materials.

Woodhouse, Joe B.; Uberoi, Raman, E-mail: raman.uberoi@orh.nhs.uk [Oxford University Hospitals (United Kingdom)

2013-08-01T23:59:59.000Z

392

Improved modeling techniques for turbomachinery flow fields  

DOE Green Energy (OSTI)

This program has the objective of developing an improved methodology for modeling turbomachinery flow fields, including the prediction of losses and efficiency. Specifically, the program addresses the treatment of the mixing stress tensor terms attributed to deterministic flow field mechanisms required in steady-state Computational Fluid Dynamic (CFD) models for turbomachinery flow fields. These mixing stress tensors arise due to spatial and temporal fluctuations (in an absolute frame of reference) caused by rotor-stator interaction due to various blade rows and by blade-to-blade variation of flow properties. This will be accomplished in a cooperative program by Penn State University and the Allison Engine Company. These tasks include the acquisition of previously unavailable experimental data in a high-speed turbomachinery environment, the use of advanced techniques to analyze the data, and the development of a methodology to treat the deterministic component of the mixing stress tenor.

Lakshminarayana, B.; Fagan, J.R. Jr.

1995-12-31T23:59:59.000Z

393

Renormalization group invariance in the Pinch Technique  

E-Print Network (OSTI)

We show how to construct, using an elementary extension of the Pinch Technique, all off-shell Green's functions of a non-Abelian gauge theory so that they are locally gauge-invariant and renormalization-group invariant (RGI), as the S-matrix is, as well as being process-independent, coupling-constant independent (dimensional transmutation), and satisfying QED-like Ward identities. We call these PT-RGI Green's functions and outline how to construct an approximate three-gluon PT-RGI vertex with three physical scales and no dependence on the renormalization point $\\mu$. Properties of the PT-RGI Schwinger-Dyson equations are discussed, mostly in the context of a modified form of $\\phi^3_6$. The PT-RGI property of all off-shell Green's functions, plus other work of long ago, leads to a near-realization of the old dreams of S-matrix theorists.

Cornwall, John M

2011-01-01T23:59:59.000Z

394

Special techniques and equipment reduce problems  

Science Conference Proceedings (OSTI)

Novel underbalanced drilling procedures, downhole-adjustable equipment, and a mud easily cleaned from the fractures, helped reduce formation damage and ensured a successful horizontal well in the high-temperature, abnormally pressured Austin chalk in Louisiana. The technique for successfully drilling the lateral in the Austin chalk included taking the smallest influx possible, maintaining as low a back pressure as possible, and balancing the mud gains from the hole with the mud losses to the hole. Other keys to the success of this well included the use of measurement-while-drilling (MWD) with resistivity in real time to pick the top of the formation. In describing the drilling process, the paper discusses the following: intermediate casing point, pilot hole, 8 1/2-inch curve, snubbing, laterals, bit performance, mud properties, underbalanced drilling, high temperature, directional drilling, and well completion, and then gives recommendations for similar wells.

Joseph, R.A. (OXY U.S.A. Inc., Houston, TX (United States))

1995-03-27T23:59:59.000Z

395

Interferometer Techniques for Gravitational-Wave Detection  

E-Print Network (OSTI)

Several km-scale gravitational-wave detectors have been constructed world wide. These instruments combine a number of advanced technologies to push the limits of precision length measurement. The core devices are laser interferometers of a new kind; developed from the classical Michelson topology these interferometers integrate additional optical elements, which significantly change the properties of the optical system. Much of the design and analysis of these laser interferometers can be performed using well-known classical optical techniques, however, the complex optical layouts provide a new challenge. In this review we give a textbook-style introduction to the optical science required for the understanding of modern gravitational wave detectors, as well as other high-precision laser interferometers. In addition, we provide a number of examples for a freely available interferometer simulation software and encourage the reader to use these examples to gain hands-on experience with the discussed optical methods.

Andreas Freise; Kenneth Strain

2009-09-21T23:59:59.000Z

396

Artificial Intelligence Techniques for Steam Generator Modelling  

E-Print Network (OSTI)

This paper investigates the use of different Artificial Intelligence methods to predict the values of several continuous variables from a Steam Generator. The objective was to determine how the different artificial intelligence methods performed in making predictions on the given dataset. The artificial intelligence methods evaluated were Neural Networks, Support Vector Machines, and Adaptive Neuro-Fuzzy Inference Systems. The types of neural networks investigated were Multi-Layer Perceptions, and Radial Basis Function. Bayesian and committee techniques were applied to these neural networks. Each of the AI methods considered was simulated in Matlab. The results of the simulations showed that all the AI methods were capable of predicting the Steam Generator data reasonably accurately. However, the Adaptive Neuro-Fuzzy Inference system out performed the other methods in terms of accuracy and ease of implementation, while still achieving a fast execution time as well as a reasonable training time.

Wright, Sarah

2008-01-01T23:59:59.000Z

397

Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Techniques for Drivers Techniques for Drivers to Conserve Fuel to someone by E-mail Share Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Facebook Tweet about Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Twitter Bookmark Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Google Bookmark Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Delicious Rank Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Digg Find More places to share Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on AddThis.com... More in this section... Idle Reduction Parts & Equipment Maintenance Driving Behavior Management Strategies Driver Techniques Fleet Rightsizing

398

Category:Remote Sensing Techniques | Open Energy Information  

Open Energy Info (EERE)

Remote Sensing Techniques Remote Sensing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Remote Sensing Techniques page? For detailed information on remote sensing techniques used as a geothermal exploration technique, click here. Category: Remote Sensing Techniques Add.png Add a new Remote Sensing Technique Subcategories This category has the following 2 subcategories, out of 2 total. A [+] Active Sensors‎ (1 categories) 2 pages P [×] Passive Sensors‎ 13 pages Pages in category "Remote Sensing Techniques" The following 2 pages are in this category, out of 2 total. A Active Sensors L Long-Wave Infrared Retrieved from "http://en.openei.org/w/index.php?title=Category:Remote_Sensing_Techniques&oldid=594055"

399

Numerical techniques of rigid body simulation  

E-Print Network (OSTI)

In recent years, the modeling of physical phenomena has become an integral part of computer applications in diverse areas from engineering to entertainment. This thesis focuses on a particular aspect of this modeling, the simulation of rigid bodies. Complicated simulations require the development of sophisticated collision detection systems and numerical techniques. Previous work in the field has almost exclusively been restricted to geometries that are convex or a union of convex pieces. One of the goals of this thesis is overcoming this restriction. Collision detection is only one of the many hurdles which arise in simulating collisions between rigid bodies. To calculate the appropriate response of colliding bodies, the point of contact between the bodies must be determined. Methods of contact point determination will also be discussed. This thesis also explores the issues of resolving simultaneous collisions and resting contact via the formulation of a linear complementarity problem (LCP). This method maintains the physical validity of the simulator, unlike penalty methods which are often used. Impulse based methods for resting contacts have been proposed and implemented by others, but cannot simulate simple structures, such as a stack of blocks. The LCP formulation allows these types of configurations, which are successfully simulated in this thesis. The culmination of this thesis is the development of a rigid body simulator. The numerical methods and algorithms employed are discussed and are compared to alternative techniques. The intention is that the reader use this thesis and its references to ease the process of writing a new simulator and gain insight into the methods used.

Eberle, David Michael

2001-01-01T23:59:59.000Z

400

VLF Technique and Science in India  

Science Conference Proceedings (OSTI)

Since IGY period (1957-58), natural and artificially produced Very Low Frequency (VLF) electromagnetic radiations are being recorded at large number of ground stations and on board satellites to study various wave-plasma interactive phenomena. The terrestrial propagation of these VLF radio waves are primarily enabled through the earth ionosphere wave guide (EIWG) system to long horizontal distances around the globe and ducted along the geomagnetic field lines into the conjugate hemisphere through the ionosphere-plasmasphere-magnetosphere routes. The time frequency spectra indicate presence of dispersion and various cut-off frequencies providing several types of received signals like whistlers, chorus, tweeks, hiss, hisslers etc., which can be heard on an earphone with distinguishing audio structures. While the VLF technique has been a very effective tool for studying middle and high latitude phenomena, the importance of various anomalous characteristics over the Indian low latitude stations provide potentially new challenges for their scientific interpretation and modelling. The ducted and non-ducted propagation, low latitude TRIMPI/TLE effects, D-region ionisation perturbations due to solar and stellar x- and {gamma} ray emissions and detecting precursors of seismic activities are a few problems which will gain from low latitude studies. Since the conjugate points of Indian stations lie over the Indian oceanic region, the VLF propagation effects would be relatively noise free to observe rare and new phenomena requiring better SNR to detect such changes. The VLF signals emanating from the active seismic zones would require high sensitivity of the system and suitable network of transmitting and receiving stations. Results obtained on whistlers and related studies from a number of Indian stations covering geomagnetic latitude range between 13-24 deg. N are mentioned and reviewed in the background of theoretical understanding of the lightning return stroke signal elements, VLF propagation through cold plasma, ionospheric wave guide mode, electron precipitation due to cyclotron resonance and production of ionisation in the D-region due to solar/stellar UV/X/{gamma}-rays. Further use of the VLF technique in terms of improving both observational data for real time monitoring/modelling of geophysical phenomena and exploring space weather conditions are considered as part of a future Indian programme.

Chakravarty, S. C. [Member, Governing Body, Indian Centre for Space Physics, Kolkata (India)

2010-10-20T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Category:Well Log Techniques | Open Energy Information  

Open Energy Info (EERE)

Category Category Edit History Facebook icon Twitter icon » Category:Well Log Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Well Log Techniques page? For detailed information on Well Log Techniques as exploration techniques, click here. Category:Well Log Techniques Add.png Add a new Well Log Techniques Technique Pages in category "Well Log Techniques" The following 17 pages are in this category, out of 17 total. A Acoustic Logs C Caliper Log Cement Bond Log Chemical Logging Cross-Dipole Acoustic Log D Density Log F FMI Log G Gamma Log I Image Logs M Mud Logging N Neutron Log P Pressure Temperature Log R Resistivity Log Resistivity Tomography S Single-Well and Cross-Well Resistivity Spontaneous Potential Well Log Stoneley Analysis

402

Category:Electromagnetic Profiling Techniques | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Electromagnetic Profiling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Electromagnetic Profiling Techniques page? For detailed information on Electromagnetic Profiling Techniques, click here. Category:Electromagnetic Profiling Techniques Add.png Add a new Electromagnetic Profiling Techniques Technique Pages in category "Electromagnetic Profiling Techniques" This category contains only the following page. F Frequency-Domain Electromagnetic Survey Retrieved from "http://en.openei.org/w/index.php?title=Category:Electromagnetic_Profiling_Techniques&oldid=689835"

403

Surface Roughness Parameter Estimated with a Drag Technique  

Science Conference Proceedings (OSTI)

The surface roughness parameter, z0, can be estimated with different techniques. These techniques are analyzing the mean wind profile, estimating the surface drag coefficient and using the universal functions according to the Monin-Obukhov ...

Adrie F. G. Jacobs; Emile Schols

1986-11-01T23:59:59.000Z

404

A Stereo Photogrammetric Technique Applied to Orographic Convection  

Science Conference Proceedings (OSTI)

This paper describes a technique for photogrammetric analysis of stereo pairs of images that is applied to the study of orographic convection. The technique is designed for use with digital images and assumes detailed knowledge of the camera ...

Joseph A. Zehnder; Jiuxiang Hu; Anshuman Razdan

2007-06-01T23:59:59.000Z

405

Advanced illumination techniques for GPU-based volume raycasting  

Science Conference Proceedings (OSTI)

Volume raycasting techniques are important for both visual arts and visualization. They allow efficient generation of visual effects and visualization of scientific data obtained by tomography or numerical simulation. Volume-rendering techniques are ...

Markus Hadwiger; Patric Ljung; Christof Rezk Salama; Timo Ropinski

2009-08-01T23:59:59.000Z

406

Interpreting Meteorological Satellite Images Using a Color-Composite Technique  

Science Conference Proceedings (OSTI)

An image-display technique is described that simultaneously combines three meteorological satellite images into a color-image product. The technique reveals many features of meteorological interest. It is frequently noted that interpretations of ...

Robert P. d'Entremont; Larry W. Thomason

1987-07-01T23:59:59.000Z

407

Survey and evaluation of techniques to augment convective heat transfer  

E-Print Network (OSTI)

This report presents a survey and evaluation of the numerous techniques which have been shown to augment convective heat transfer. These techniques are: surface promoters, including roughness and treatment; displaced ...

Bergles A. E.

1965-01-01T23:59:59.000Z

408

Homogenization Techniques for European Monthly Mean Surface Pressure Series  

Science Conference Proceedings (OSTI)

The quality of 51 series of surface pressure (extending back to between 1780 and 1871) over Europe is assessed using three different homogenization techniques. A new technique introduced here based on an iteration of multiple qualitative ...

V. C. Slonosky; P. D. Jones; T. D. Davies

1999-08-01T23:59:59.000Z

409

An Automated Radar Technique for the Identification of Tropical Precipitation  

Science Conference Proceedings (OSTI)

A radar-based automated technique for the identification of tropical precipitation was developed to improve quantitative precipitation estimation during extreme rainfall events. The technique uses vertical profiles of reflectivity to identify the ...

Xiaoyong Xu; Kenneth Howard; Jian Zhang

2008-10-01T23:59:59.000Z

410

A Simple Technique for Islanding Detection with Negligible Nondetection Zone  

E-Print Network (OSTI)

Although active islanding detection techniques have smaller nondetection zones than passive techniques, active methods could degrade the system power quality and are not as simple and easy to implement as passive methods. ...

Kirtley Jr, James L.

411

Satellite Remote Sensing by the Technique of Computed Tomography  

Science Conference Proceedings (OSTI)

Computed tomography is a medical diagnostic technique in which x-ray transmission measurements at numerous angles through the human body are processed by computer to produce cross-sectional pictures of the body. A modification of this technique, ...

Henry E. Fleming

1982-10-01T23:59:59.000Z

412

5.301 Chemistry Laboratory Techniques, January IAP 2004  

E-Print Network (OSTI)

This course is an intensive introduction to the techniques of experimental chemistry and gives first year students an opportunity to learn and master the basic chemistry lab techniques for carrying out experiments. Students ...

Tabacco, Sarah

2004-01-01T23:59:59.000Z

413

New geometric techniques for linear programming and graph partitioning  

E-Print Network (OSTI)

In this thesis, we advance a collection of new geometric techniques for the analysis of combinatorial algorithms. Using these techniques, we resolve several longstanding questions in the theory of linear programming, ...

Kelner, Jonathan, 1980-

2006-01-01T23:59:59.000Z

414

A Proposed Technique for Diagnosis by Radar of Hurricane Structure  

Science Conference Proceedings (OSTI)

A Doppler radar technique is proposed for remote estimation of hurricane structure by sampling the kinematic properties of the hurricane wind field in a relatively small circular area outside the radius of maximum winds. This technique uses ...

Ralph J. Donaldson Jr.

1991-12-01T23:59:59.000Z

415

Novel techniques applied to polymer lifetime predictions  

Science Conference Proceedings (OSTI)

A study aimed at testing the Arrhenius life prediction approach is described. After aging elastomeric materials at several elevated (accelerated) temperatures, a modulus profiling apparatus was used to demonstrate the complicated diffusion-limited oxidation anomalies are typically present under accelerated oven-aging conditions. By using surface modulus results (oxidation less to a monotonic increase in modulus), estimates are made of the true activation energy (E{sub a}) appropriate to the oxidation reactions dominating degradation. Even though macroscopic properties should be influenced by the diffusion-limited oxidation complications, ultimate tensile elongation results were found to be correlated to the true E{sub a}. This implies that cracks initiate at the hardened surface of the material and then quickly propagate through the less oxidized interior. If values of E{sub a} obtained from accelerated exposures can be determined and rationalized, another important question involves the Arrhenius assumption that E{sub a} remains constant in the extrapolation region. Preliminary data from two ultra-sensitive techniques (oxygen consumption and microcalorimetry) aimed at testing this fundamental assumption are described.

Gillen, K.T.; Wise, J.; Clough, R.L.

1993-12-31T23:59:59.000Z

416

Cavitation descaling techniques for geothermal applications  

SciTech Connect

A simple and more efficient technique for descaling hard silica scales is urgently needed in order to exploit geothermal energy resources economically. With this objective in mind, DAEDALEAN ASSOCIATES, Incorporated is engaged in a research and development program utilizing the phenomenon of cavitation for cleaning and descaling under the sponsorship of ERDA, Division of Geothermal Research. The highlights of the research carried out so far under this program is reviewed in this presentation. Various effects of the phenomenon of cavitation erosion are presented. The intensity of cavitation erosion and its use in descaling applications are explained. The parameters governing the intensity of erosion are discussed. The overall objectives of the program are to demonstrate the engineering feasibility of utilizing cavitation and to generate engineering design data for its application in geothermal technology. The test facility used for this research consists of flow equipment, test chamber, and associated instrumentation. The performance of cavitating nozzles have been evaluated over a range of sizes. The intensity of erosion for one specific nozzle has been measured. The cleaning rates, the quality of cleaned surface and the intensity margin available so as not to damage the pipe wall have been determined for this specific design. Further work is under progress.

Thiruvengadam, Alagu P.

1976-01-01T23:59:59.000Z

417

Review of Building Energy Saving Techniques  

E-Print Network (OSTI)

The pace of building energy saving in our country is late, compared with developed countries, and the consumption of building energy is much higher. Therefore, it is imperative to open up new building energy saving techniques and heighten energy use efficiency. The approach of realizing energy savings is to exploit greatly and use reproducible new energy while trying to reduce total energy demand quantity in buildings. It can then reduce the utilization of energy that can easily lead to environmental pollution in building areas. Reducing total energy demand quantity in building mainly embarks from the following aspects: building programming and design, round safeguard structure, enhancing energy using efficiency of the end-User and heightening total energy using efficiency. The utilization of new energy plays an important role in the aspects of saving energy and protecting the environment. In contrast with the past, building energy savings put forward a higher requirement for building materials. Building materials play a very important role in building energy savings.

Zeng, X.; Zhu, D.

2006-01-01T23:59:59.000Z

418

Radar transponder apparatus and signal processing technique  

DOE Patents (OSTI)

An active, phase-coded, time-grating transponder and a synthetic-aperture radar (SAR) and signal processor means, in combination, allow the recognition and location of the transponder (tag) in the SAR image and allow communication of information messages from the transponder to the SAR. The SAR is an illuminating radar having special processing modifications in an image-formation processor to receive an echo from a remote transponder, after the transponder receives and retransmits the SAR illuminations, and to enhance tile transponder`s echo relative to surrounding ground clutter by recognizing special transponder modulations from phase-shifted from the transponder retransmissions. The remote radio-frequency tag also transmits information to the SAR through a single antenna that also serves to receive the SAR illuminations. Unique tag-modulation and SAR signal processing techniques, in combination, allow the detection and precise geographical location of the tag, through the reduction of interfering signals from ground clutter, and allow communication of environmental and status information from said tag to be communicated to said SAR.

Axline, R.M. Jr.; Sloan, G.R.; Spalding, R.E.

1994-12-31T23:59:59.000Z

419

An Examination of Failure Modes and Investigation Techniques in ...  

Science Conference Proceedings (OSTI)

Accident Investigation and Materials Failure Analysis at the Transportation Safety ... Experimental Technique to Conduct Thermal Shock Test on Refractories ...

420

A New Technique for Microautoradiography and Tritium Profiling  

SciTech Connect

A new technique has been developed for high magnification examination of autoradiographic emulsions. The technique enables a relatively quick examination of autoradiographic emulsions from large areas of metallographically prepared samples at magnifications of up to 50,000X. The technique also allows for profiling of the tritium distribution with the promise of quantitative profiling, all on a microscale.

Downs, G. L.

1967-12-01T23:59:59.000Z

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421

Efficient Fingerprint Matching Technique Using Wavelet Based Features  

Science Conference Proceedings (OSTI)

This paper details the work of an efficient fingerprint matching technique via the use of wavelet based features. It is a kind of image based processing technique. So first core point is detected via using the hybrid technique. Then wavelet is applied ...

Nabeel Younus Khan; Muhammad Younus Javed

2007-12-01T23:59:59.000Z

422

OBSERVATION OF DIPOLAR FERROMAGNETISM BY TEM TECHNIQUES.  

Science Conference Proceedings (OSTI)

Magnetostatic interactions play a central role in determining the magnetic response of an array of patterned magnetic elements or magnetized nanoparticles of given shape. The Fourier space approach recently introduced for the analytical computation of the demagnetizing tensor, field and energy for particles of arbitrary shape [1], has been recently extended to cover interactions between elements [2]. The main achievement has been the definition of a generalized dipole-dipole interaction for cylindrical objects, which takes into account the influence of shape anisotropy without resorting to,any kind of approximations [3]. Once the interaction energy is available, it becomes possible to evaluate the minimum energy state of the system for a given set of external parameters (such as applied field, aspect ratio, distance between elements). It turns out that, below a critical combination of aspect ratios and distances, the system undergoes a phase transition, changing abruptly from a closure domain state, with zero net magnetization, to a dipolar ferromagnetic state with a net magnetization which depends on the interaction strength between the elements. In order to observe this phenomenon by TEM, it is necessary to estimate the feasibility of the experiment by a series of simulations. Figure 1 shows the electron optical phase shifts for the system of three weakly (a-c) and strongly (d) interacting disks. The elements have a radius of 50 nm, a thickness of 5 nm (aspect ratio 1/20), and are uniformly magnetized at 2 T. By comparing Fig.1 (c) and (d), it can be seen that the fingerprint of the transition is the presence of fringing fields around the elements, revealed by the cosine fringes which resemble a dipole-like field in (d). When the system is in the closure-domain state, as in (a-c), no fringing field can be observed on a large scale. Figure 2 shows a set of Fresnel images, calculated for the same configurations as in Fig.1. As the Fresnel technique is scarcely sensitive to fringing fields, their effect is not evident in the images. However, by following the bright and dark contrast features in each image, a change in magnetization can be deduced, also when the electrostatic phase shift proportional to the thickness is taken into account. An alternative, more indirect, opportunity to observe the transition is granted by hysteresis loops. Figure 3 shows calculated hysteresis curves for non-interacting (a), weakly interacting (b) and strongly interacting (c) disks. The applied field is in-plane, along one of the triangular symmetry axis (0{sup o}, 60{sup o} or 120{sup o}). The transition is revealed by a remnant magnetization in zero field (c), contrary to the behavior of the weak interaction (b). Dipolar ferromagnetism can, therefore, be successfully investigated by TEM, where at least three different techniques, phase retrieval, phase contrast, and in-situ hysteresis experiments, are available for detecting the phase transition [4].

BELEGGIA, M.ZHU,Y.TANDON,S.ET AL.

2004-08-01T23:59:59.000Z

423

Novel techniques for slurry bubble column hydrodynamics  

Science Conference Proceedings (OSTI)

The objective of this cooperative research effort between Washington University, Ohio State University and Exxon Research Engineering Company was to improve the knowledge base for scale-up and operation of slurry bubble column reactors for syngas conversion and other coal conversion processes by increased reliance on experimentally verified hydrodynamic models. During the first year (July 1, 1995--June 30, 1996) of this three year program novel experimental tools (computer aided radioactive particle tracking (CARPT), particle image velocimetry (PIV), heat probe, optical fiber probe and gamma ray tomography) were developed and tuned for measurement of pertinent hydrodynamic quantities, such as velocity field, holdup distribution, heat transfer and bubble size. The accomplishments were delineated in the First Technical Annual Report. The second year (July, 1996--June 30, 1997) was spent on further development and tuning of the novel experimental tools (e.g., development of Monte Carlo calibration for CARPT, optical probe development), building up the hydrodynamic data base using these tools and comparison of the two techniques (PIV and CARPT) for determination of liquid velocities. A phenomenological model for gas and liquid backmixing was also developed. All accomplishments were summarized in the Second Annual Technical Report. During the third and final year of the program (July 1, 1997--June 30, 1998) and during the nine months no cost extension, the high pressure facility was completed and a set of data was taken at high pressure conditions. Both PIV, CT and CARPT were used. More fundamental hydrodynamic modeling was also undertaken and model predictions were compared to data. The accomplishments for this period are summarized in this report.

Dudukovic, M.P.

1999-05-14T23:59:59.000Z

424

CMB Observational Techniques and Recent Results  

E-Print Network (OSTI)

The Cosmic Microwave Background (CMB) consists of photons that were last created about 2 months after the Big Bang, and last scattered about 380,000 years after the Big Bang. The spectrum of the CMB is very close to a blackbody at 2.725 K and upper limits on any deviations of the CMB from a blackbody place strong constraints on energy transfer between the CMB and matter at all redshifts less than 2,000,000. The CMB is very nearly isotropic, but a dipole anisotropy of +/-3.346(17) mK shows that the Solar System barycenter is moving at 368+/-2 km/sec relative to the observable Universe. The dipole corresponds to a spherical harmonic index l=1. The higher indices l geq 2 indicate intrinsic inhomogeneities in the Universe that existed at the time of last scattering. While the photons have traveled freely only since the time of last scattering, the inhomogeneities traced by the CMB photons have been in place since the inflationary epoch only 10^{-35} sec after the Big Bang. These intrinsic anisotropies are much smaller in amplitude than the dipole anisotropy, with Delta T leq 100 microK. Electron scattering of the anisotropic radiation field produces an anisotropic linear polarization in the CMB with amplitudes less than 5 microK. Detailed studies of the angular power spectrum of the temperature and linear polarization anisotropies have yielded precise values for many cosmological parameters. This paper will discuss the techniques necessary to measure signals that are 100 million times smaller than the emission from the instrument and briefly describe results from experiments up to WMAP.

E. L. Wright

2003-12-31T23:59:59.000Z

425

TRIDENT flyer plate Impact technique: comparison to gas gun plate impact technique  

SciTech Connect

This report describes the details of a series of plate impact experiments that were conducted on a gas gun in an effort to validate a new technique for plate impact using the TRIDENT laser to launch thin flyers. The diagnostics fielded were VISAR and identical samples and impactors were used on both platforms. All experimenters agree that the VISAR results should have agreed between the two experimental platforms. The VISAR results did not agree across the platforms and experimenters offer explanations and implications for this outcome.

Darcie D. Koller; George T. Gray III; Sheng-Nian Luo

2009-03-01T23:59:59.000Z

426

SO3/H2SO4 Measurement Techniques and Instrumentation  

Science Conference Proceedings (OSTI)

Sulfur trioxide (SO3) is the principal condensable from coal-fired boilers. Measuring SO3 and its reaction product sulfuric acid (H2SO4), poses one of the more difficult challenges in emission measurement. Typically, when quantifying pollutants in flue gases, the pollutant is measured in a single phase, either as a gas, liquid or solid. The reaction of SO3 with water vapor to form gaseous H2SO4 is a dynamic process dependent upon the concentration of the reactants, flue gas temperature, and to a lesser e...

2008-12-16T23:59:59.000Z

427

PFT Air Infiltration Measurement Technique | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PFT Air Infiltration Measurement Technique PFT Air Infiltration Measurement Technique PFT Air Infiltration Measurement Technique April 2, 2012 - 3:11pm Addthis The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. What does this mean for me? You can save 5%-30% on your energy bill by making upgrades following a home energy assessment. A professional energy auditor may use the PFT air infiltration measurement technique to find out where your home has air leaks, though a blower door test is more commonly used.

428

Optical techniques for fluid flow and heat transfer  

Science Conference Proceedings (OSTI)

A review is presented of optical measuring techniques employed in momentum heat and mass transfer studies. A classification is given of those techniques that are nowadays widely employed in studies to advance the understanding of transport phenomena in fluids. Techniques that employ effects caused by fluid molecules are briefly treated, and examples of measurements are given to demonstrate the kind of information that can be obtained by these techniques. Optical techniques using tracers to obtain transport information are summarized, and laser-Doppler anemometry and its application to fluid flow studies are emphasized. Applications of this technique in single-phase and two-phase flows are given that demonstrate its potential in experimental fluid mechanics and convective heat transfer studies. 63 refs.

Durst, F. (Erlangen-Nuernberg Universitaet, Erlangen (Germany, F.R.))

1990-01-01T23:59:59.000Z

429

Ultrasonic technique for inspection of GPHS capsule girth weld integrity  

DOE Green Energy (OSTI)

An innovative nondestructive examination (NDE) technique for the inspection of integrity of General Purpose Heat Source (GPHS) capsule girth welds (Figure 1) was developed employing a Lamb (plate) wave as the mode of the sound propagation. Reliability of the Lamb wave technique was tested on GPHS capsules using plutonium pallet simulators. All ten capsules, which were previously rejected, passed ultrasonic (UT) inspection using the Lamb wave technique.

Placr, Arnost

1993-05-01T23:59:59.000Z

430

X-ray streak and framing camera techniques  

SciTech Connect

This paper reviews recent developments and applications of ultrafast diagnostic techniques for x-ray measurements. These techniques, based on applications of image converter devices, are already capable of significantly important resolution capabilities. Techniques capable of time resolution in the sub-nanosecond regime are being considered. Mechanical cameras are excluded from considerations as are devices using phosphors or fluors as x-ray converters.

Coleman, L.W.; Attwood, D.T.

1975-12-23T23:59:59.000Z

431

Argonne National Laboratory Scientists Invent Breakthrough Technique in  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Argonne National Laboratory Scientists Invent Breakthrough Argonne National Laboratory Scientists Invent Breakthrough Technique in Nanotechnology Argonne National Laboratory Scientists Invent Breakthrough Technique in Nanotechnology March 17, 2011 - 9:36am Addthis Gold and carbon nanoparticles strung together using a breakthrough new technique for materials design known as "optically directed assembly" | Courtesy of Argonne National Laboratory Gold and carbon nanoparticles strung together using a breakthrough new technique for materials design known as "optically directed assembly" | Courtesy of Argonne National Laboratory Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public Affairs What are the key facts? With a low-power laser, similar in intensity to those in

432

The three dimensional X-ray diffraction technique  

SciTech Connect

This introductory tutorial describes the so called 3 dimensional X-ray diffraction (3DXRD) technique, which allows bulk non-destructive structural characterizations of crystalline materials. The motivations and history behind the development of this technique are described and its potentials are sketched. Examples of the use of the technique are given and future trends and developments are suggested. The primary aim of the paper is to give 3DXRD novices an easy introduction to the technique and to describe a way from a dream to reality and new results.

Jensen, D. Juul; Poulsen, H.F. (Denmark)

2012-10-24T23:59:59.000Z

433

Exploration and Development Techniques for Basin and Range Geothermal...  

Open Energy Info (EERE)

Council, 2002 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Exploration and Development Techniques for Basin and Range Geothermal...

434

USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF...  

Open Energy Info (EERE)

USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: USE OF...

435

New Quantum Dot Technique Combines Best of Optical and ...  

Science Conference Proceedings (OSTI)

New Quantum Dot Technique Combines Best of Optical and Electron ... over a sample that has been coated with specially engineered quantum dots. ...

2013-06-25T23:59:59.000Z

436

GreenArrow© - A New Graph Labeling Technique - Available ...  

Search PNNL. PNNL Home; About; Research; Publications; Jobs; News; Contacts; GreenArrow© - A New Graph Labeling Technique. Battelle Number(s): ...

437

Simulation Techniques for Process Energy Modeling - Doing it ...  

Science Conference Proceedings (OSTI)

Simulation Techniques for Process Energy Modeling ... 2: Constrained Material Balance for Maximum Activity of Carbon; SuperSolver's Optimization Feature. III.

438

J-44: Fast Triangular Gate Pulse Measurement Techniques for ...  

Science Conference Proceedings (OSTI)

Conventional I-V measurement techniques, which may give undesirable stress ... Improved Performance of Bulk-Heterojunction Organic Solar Cells with the Use ...

439

Electric Vehicle Battery Thermal Issues and Thermal Management Techniques (Presentation)  

SciTech Connect

This presentation examines the issues concerning thermal management in electric drive vehicles and management techniques for improving the life of a Li-ion battery in an EDV.

Rugh, J. P.; Pesaran, A.; Smith, K.

2013-07-01T23:59:59.000Z

440

High Througput Combinatorial Techniques in Hydrogen Storage Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

THROUGHPUTCOMBINATORIAL TECHNIQUES IN HYDROGEN STORAGE MATERIALS R&D WORKSHOP U.S. Department of Energy Office of Hydrogen, Fuel Cells and Infrastructure Technologies June 26,...

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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.
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to obtain the most current and comprehensive results.


441

Fabrication of Solid Oxide Fuel Cells via Thin Film Techniques  

Science Conference Proceedings (OSTI)

We decided to use thin film techniques to solve this problem. Among various methods of lowering the operation temperature for SOFCs, adopting bi-layer ...

442

Advanced Millimeter-Wave Security Portal Imaging Techniques  

Science Conference Proceedings (OSTI)

Millimeter-wave imaging is rapidly gaining acceptance for passenger screening at airports and other secured facilities. This paper details a number of techniques developed over the last several years including novel image reconstruction and display techniques, polarimetric imaging techniques, array switching schemes, as well as high frequency high bandwidth techniques. Implementation of some of these methods will increase the cost and complexity of the mm-wave security portal imaging systems. RF photonic methods may provide new solutions to the design and development of the sequentially switched linear mm-wave arrays that are the key element in the mm-wave portal imaging systems.

Sheen, David M.; Bernacki, Bruce E.; McMakin, Douglas L.

2012-04-01T23:59:59.000Z

443

Optimization Techniques for the Brazilian Natural Gas Network ...  

E-Print Network (OSTI)

Jun 4, 2013 ... Optimization Techniques for the Brazilian Natural Gas Network Planning Problem . Leonardo A.M. Moraes(leonardo.moraes ***at*** ...

444

Novel update techniques for the revised simplex method  

E-Print Network (OSTI)

Jan 28, 2013 ... high performance computing techniques for the simplex method [13,17]. Qi Huangfu · J. A. Julian Hall. School of Mathematics, University of ...

445

Thin film techniques for solid oxide fuel cells  

Thin film techniques for solid oxide fuel cells V.E.J. van Dieten and J. Schoonman Laboratory ... ticles stay in the hot temperature region can be ...

446

Analysis of Traffic Scheduling Technique for Smart Grid Mesh ...  

Science Conference Proceedings (OSTI)

Analysis of Traffic Scheduling Technique for Smart Grid Mesh Networks ... In this paper, we present a multi-gate mesh network architecture that has ...

2012-01-03T23:59:59.000Z

447

Wavelet denoising techniques with applications to experimental geophysical data  

Science Conference Proceedings (OSTI)

In this paper, we compare Fourier-based and wavelet-based denoising techniques applied to both synthetic and real experimental geophysical data. The Fourier-based technique used for comparison is the classical Wiener estimator, and the wavelet-based ... Keywords: Denoising, Empirical Bayes, Wavelet, Wavelet thresholding, Wiener filter

Albert C. To; Jeffrey R. Moore; Steven D. Glaser

2009-02-01T23:59:59.000Z

448

A noise rejection deadbeat control technique for active power filter  

Science Conference Proceedings (OSTI)

Compared with power filter, active power filter has a lot of advantages and it is an efficient technique to eliminate or limit the harmonic pollution in power system. However, the control of active power filter is very complex, and the control of current ... Keywords: active power filter, current control technique, deadbeat control, noise rejection, periodic noise, resetting integrator, sampling noise

Li-Dan Zhou; Mansoor Mansoor; Qian Ai; Da Xie; Chen Chen

2005-10-01T23:59:59.000Z

449

Hybrid TOA---AOA Location Positioning Techniques in GSM Networks  

Science Conference Proceedings (OSTI)

Positioning algorithms and their implementation in mobile networks are being investigated in the literature due to their importance in location services. Nowadays, the need for superior accuracy has cast attention to hybrid positioning techniques. In ... Keywords: Access delay, Angle of arrivals, GSM procedure, Hybrid techniques, Paging signalling, Time of arrivals

Nikos Deligiannis; Spiros Louvros

2010-07-01T23:59:59.000Z

450

Software and Hardware Techniques for SEU Detection in IP Processors  

Science Conference Proceedings (OSTI)

In the recent years both software and hardware techniques have been adopted to carry out reliable designs, aimed at autonomously detecting the occurrence of faults, to allow discarding erroneous data and possibly performing the recovery of the system. ... Keywords: Fault injection, Hardware/software techniques, Reliability, Single-event upset faults

C. Bolchini; A. Miele; M. Rebaudengo; F. Salice; D. Sciuto; L. Sterpone; M. Violante

2008-06-01T23:59:59.000Z

451

X-ray divergent-beam (Kossel) technique: A review  

Science Conference Proceedings (OSTI)

The development of the X-ray divergent-beam (Kossel) technique over the last 50 years is traced. The fundamentals of this technique and ways to implement it experimentally are considered, and its potential for studying the real structure of crystals is analyzed in detail.

Lider, V. V., E-mail: lider@ns.crys.ras.ru [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)

2011-03-15T23:59:59.000Z

452

A review of vessel extraction techniques and algorithms  

Science Conference Proceedings (OSTI)

Vessel segmentation algorithms are the critical components of circulatory blood vessel analysis systems. We present a survey of vessel extraction techniques and algorithms. We put the various vessel extraction approaches and techniques in perspective ... Keywords: Magnetic resonance angiography, X-ray angiography, medical imaging, neurovascular, vessel extraction

Cemil Kirbas; Francis Quek

2004-06-01T23:59:59.000Z

453

Layout impact of resolution enhancement techniques: impediment or opportunity?  

Science Conference Proceedings (OSTI)

This tutorial introduces the reader to the basic concepts of optical lithography, derives fundamental resolution limits, reviews the challenges facing future technology nodes, explains the principles of resolution enhancement techniques and their impact ... Keywords: design for manufacturability, lithography, radically restricted designs, resolution enhancement techniques

Lars W. Liebmann

2003-04-01T23:59:59.000Z

454

Assessment of speciation techniques including the application of photoacoustic spectroscopy  

Science Conference Proceedings (OSTI)

This document describes laboratory experiments that compare chromatographic and spectroscopic methods for rapidly characterizing ionic species in detail. These techniques were tested on various radioactive ion systems to develop a rapid, accurate approach to site characterization for use with Remedial Action Programs. Promising techniques were evaluated. 9 refs., 16 figs., 2 tabs.

Bucher, J.; Gehmecker, H.; Edelstein, N.

1985-08-01T23:59:59.000Z

455

Earth resistivity estimation based on satellite imaging techniques  

Science Conference Proceedings (OSTI)

This paper proposes a useful technique for generating an earth resistivity map. Earth resistance is one of essential factors in a broad range of power system analysis and design. Information of earth resistivity is helpful for practical power system ... Keywords: Wenner method, classification technique, earth resistivity, multispectral, power system grounding, satellite image technology

Kwanchai Norsangsri; Thanatchai Kulworawanichpong

2009-09-01T23:59:59.000Z

456

Hierarchical Partitioning Techniques for Structured Adaptive Mesh Refinement Applications  

Science Conference Proceedings (OSTI)

This paper presents the design and preliminary evaluation of hierarchical partitioning and load-balancing techniques for distributed structured adaptive mesh refinement (SAMR) applications. The overall goal of these techniques is to enable the load distribution ... Keywords: distributed computing, dynamic load balancing, hierarchical partitioning algorithm, structured adaptive mesh refinement

Xiaolin Li; Manish Parashar

2004-06-01T23:59:59.000Z

457

Nonlinear Control Techniques in Uninterruptible Power Supply Inverter: A Review  

Science Conference Proceedings (OSTI)

Summarizes the basic objectives of controllers for UPS system are tracking ability and robustness. To get this aims, many controllers have been proposed in the literature. In this paper a comprehensive review of the nonlinear control techniques of UPS ... Keywords: inverter, uninterruptible power supply, control techniques

Ghazanfar Shahgholian; Jawad Faiz; Pegah Shafaghi

2009-12-01T23:59:59.000Z

458

Hard X-ray Phase Contrast -Techniques and Applications -  

E-Print Network (OSTI)

Hard X-ray Phase Contrast Microscopy - Techniques and Applications - A Dissertation Presented of the Graduate School ii #12;Abstract of the Dissertation Hard X-ray Phase Contrast Microscopy - Techniques . . . . . . . . . . . . . . . . . . 58 3.2.4 Reconstruction Example for Integration Method . . . . 59 3.2.5 The Imaginary Part

459

A Characterization of Distribution Techniques for Dynamic Adaptive Grid Hierarchies  

E-Print Network (OSTI)

A Characterization of Distribution Techniques for Dynamic Adaptive Grid Hierarchies Samip Bhavsar for distributed adaptive grid hierarchies that underlie parallel adaptive mesh-refinement (AMR) techniques is the development of a policy driven tool for automated configuration and run-time management of distributed

Parashar, Manish

460

Review on Ventilation Rate Measuring and Modeling Techniques in Naturally  

NLE Websites -- All DOE Office Websites (Extended Search)

Review on Ventilation Rate Measuring and Modeling Techniques in Naturally Review on Ventilation Rate Measuring and Modeling Techniques in Naturally Ventilated Building Speaker(s): Sezin Eren Ozcan Date: May 16, 2006 - 12:00pm Location: Bldg. 90 Due to limited energy sources, countries are looking for alternative solutions to decrease energy needs. In that context, natural ventilation can be seen as a very attractive sustainable technique in building design. However, understanding of ventilation dynamics is needed to provide an efficient control. Ventilation rate has to be determined not only in terms of energy, but also for controlling indoor air quality and emissions. For these reasons, agricultural buildings (livestock houses, greenhouses, etc.), naturally ventilated industrial buildings, and residences require a reliable ventilation rate measuring technique. Measuring techniques suffer

Note: This page contains sample records for the topic "dual-doppler techniques principal" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


461

Identification of Fissionable Materials Using the Tagged Neutron Technique  

Science Conference Proceedings (OSTI)

This summary describes experiments to detect and identify fissionable materials using the tagged neutron technique. The objective of this work is to enhance homeland security capability to find fissionable material that may be smuggled inside shipping boxes, containers, or vehicles. The technique distinguishes depleted uranium from lead, steel, and tungsten. Future work involves optimizing the technique to increase the count rate by many orders of magnitude and to build in the additional capability to image hidden fissionable materials. The tagged neutron approach is very different to other techniques based on neutron die-away or photo-fission. This work builds on the development of the Associated Particle Imaging (API) technique at the Special Technologies Laboratory (STL) [1]. Similar investigations have been performed by teams at the Oak Ridge National Laboratory (ORNL), the Khlopin Radium Institute in Russia, and by the EURITRACK collaboration in the European Union [2,3,4].

R.P. Keegan, J.P. Hurley, J.R. Tinsley, R. Trainham

2009-06-30T23:59:59.000Z

462

Development of the Passive Cooling Technique in China  

E-Print Network (OSTI)

With more and more energy and environmental issues, the energy-saving and sustainable development of buildings is of utmost concern to the building industry. Passive cooling techniques can optimally utilize natural resources in order to reduce the energy consumption of buildings. At the same time, it can improve the buildings' thermal environment, so that it has gained the attention of many researchers and has been applied in many different zones of China. The author summarizes various passive cooling techniques, analyzes the research methods and simulation tools, and presents the results of a survey on actual applied conditions. We put forward the pivotal factors and the development direction of the technique. Comparing the thermal comfort zone of the passive cooling technique and the mechanical types, the passive cooling technique is found to be more suitable to people.

Zhou, J.; Wu, J.; Zhang, G.; Xu, Y.

2006-01-01T23:59:59.000Z

463

A Comparison Study of EOF Techniques: Analysis of Nonstationary Data with Periodic Statistics  

Science Conference Proceedings (OSTI)

Identification of independent physical/dynamical modes and corresponding principal component time series is an important aspect of climate studies for they serve as a tool for detecting and predicting climate changes. While there are a number of ...

Kwang-Y. Kim; Qigang Wu

1999-01-01T23:59:59.000Z

464

Neutron Imaging Explored as Complementary Technique for Improving Cancer  

NLE Websites -- All DOE Office Websites (Extended Search)

Neutron Imaging Explored as Complementary Technique for Improving Cancer Neutron Imaging Explored as Complementary Technique for Improving Cancer Detection August 05, 2013 Researcher Maria Cekanova analyzes the neutron radiographs of a canine breast tumor (black color in top image of monitor screen) using the software to visualize in color the various intensities of neutron transmissions through the breast tissue. ORNL and University of Tennessee collaboration now analyzing first results from neutron radiographs of cancerous tissue samples Today's range of techniques for detection of breast and other cancers include mammography, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, positron emission tomography (PET), and optical imaging. Each technology has advantages and disadvantages, with limitations either

465

Graphical technique for interpolating shape factors for peripheral waterflood systems  

SciTech Connect

A method of interpolating the shape factors between already known sets of data can be utilized in peripheral waterflood systems. This graphical technique should provide reasonably reliable shape factors without necessitating further flow pattern evaluation. A set of interpolated shape factors for the constant pressure difference case is tabulated. These factors were derived from the shape factors previously determined using variation of width technique. A comparison of the interpolated shape factors and the shape factors obtained by the circling-in techniques are also shown. Good agreement was obtained in this comparison.

Kantar, K.; Helander, D.P.

1967-06-01T23:59:59.000Z

466

Rapid analysis of steels using laser-based techniques  

SciTech Connect

Based on the data obtained by this study, we conclude that laser-based techniques can be used to provide at least semi-quantitative information about the elemental composition of molten steel. Of the two techniques investigated here, the Sample-Only method appears preferable to the LIBS (laser-induced breakdown spectroscopy) method because of its superior analytical performance. In addition, the Sample-Only method would probably be easier to incorporate into a steel plant environment. However, before either technique can be applied to steel monitoring, additional research is needed.

Cremers, D.A.; Archuleta, F.L.; Dilworth, H.C.

1985-01-01T23:59:59.000Z

467

Mapping Diffuse Seismicity Using Empirical Matched Field Processing Techniques  

DOE Green Energy (OSTI)

The objective of this project is to detect and locate more microearthquakes using the empirical matched field processing (MFP) method than can be detected using only conventional earthquake detection techniques. We propose that empirical MFP can complement existing catalogs and techniques. We test our method on continuous seismic data collected at the Salton Sea Geothermal Field during November 2009 and January 2010. In the Southern California Earthquake Data Center (SCEDC) earthquake catalog, 619 events were identified in our study area during this time frame and our MFP technique identified 1094 events. Therefore, we believe that the empirical MFP method combined with conventional methods significantly improves the network detection ability in an efficient matter.

Wang, J; Templeton, D C; Harris, D B

2011-01-21T23:59:59.000Z

468

Recombination Lifetimes Using the RCPCD Technique: Comparison with Other Methods  

DOE Green Energy (OSTI)

The theory and operation of the resonance-coupled photoconductive decay (RCPCD) technique is described. Examples are presented of data measured on a wide variety of sample types. The RCPCD technique has been applied to a variety of wafer and thin-film materials. Using this technique, we can measure recombination lifetime over at least three decades of injection level. We can also measure relative values of minority-carrier mobility and diffusion length. By scanning the excitation wavelength, we can measure spectral response and photoconductive excitation spectra. Deep-level impurities have been detected by several variations of RCPCD.

Ahrenkiel, R.K.; Johnston, S.W.; Dashdorj, J.

2005-01-01T23:59:59.000Z

469

Quadrupole Magnetic Center Definition Using the Hall Probe Measurement Technique  

NLE Websites -- All DOE Office Websites (Extended Search)

Quadrupole Magnetic Center Definition Quadrupole Magnetic Center Definition Using the Hall Probe Measurement Technique Isaac Vasserman Experimental Facility Division, Advanced Photon Source, Argonne National Laboratory 1. Introduction The linac coherent light source [LCLS] project [1] requires 5 ”m straightness of the particle beam trajectory to achieve the desired goal of x-ray multiplication. The main source of beam trajectory distortion is misalignment of quadrupoles. The LCLS project will use a beam-based alignment technique to align the quadrupoles to the needed accuracy. An initial accuracy of the quadrupole alignment not worse than 50 ”m is required [2]. A different technique could be used for this purpose. It would be though quite desirable to avoid using an additional magnetic measurement technique and to use

470

Exploration and Development Techniques for Basin and Range Geothermal  

Open Energy Info (EERE)

Techniques for Basin and Range Geothermal Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Exploration and Development Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Abstract Abstract unavailable. Authors David D. Blackwell, Mark Leidig, Richard P. Smith, Stuart D. Johnson and Kenneth W. Wisian Conference GRC Annual Meeting; Reno, NV; 2002/09/22 Published Geothermal Resources Council, 2002 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Exploration and Development Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Citation David D. Blackwell,Mark Leidig,Richard P. Smith,Stuart D. Johnson,Kenneth

471

Argonne CNM News: A better etching technique: sequential infiltration  

NLE Websites -- All DOE Office Websites (Extended Search)

A Better Etching Technique Is Invented A Better Etching Technique Is Invented Mark Holt (Argonne Center for Nanoscale Materials) examines a sample in the Hard X-Ray Nanoprobe Deep canyons can be etched into materials at the nanoscale with a new SIS-based lithography technique Nanoscientists at Argonne's Center for Nanoscale Materials and Energy Systems Division have discovered a new way to transfer patterns onto different materials, an innovation that combines new tricks with an old technology. One of the biggest recent questions facing materials science has involved the development of better techniques for high-resolution lithographies such as electron-beam (e-beam) lithography. E-beam lithography is used to manufacture the tiniest of structures, including microelectronics and advanced sensors; beams of electrons are part of a

472

Innovative Technique Accelerates Waste Disposal at Idaho Site | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovative Technique Accelerates Waste Disposal at Idaho Site Innovative Technique Accelerates Waste Disposal at Idaho Site Innovative Technique Accelerates Waste Disposal at Idaho Site May 15, 2013 - 12:00pm Addthis A product drum of mixed low-level waste is lowered into a high-density polyethylene macro-pack. A product drum of mixed low-level waste is lowered into a high-density polyethylene macro-pack. Macro-packs from the Idaho site are shown here safely and compliantly disposed. Macro-packs from the Idaho site are shown here safely and compliantly disposed. A product drum of mixed low-level waste is lowered into a high-density polyethylene macro-pack. Macro-packs from the Idaho site are shown here safely and compliantly disposed. IDAHO FALLS, Idaho - An innovative treatment and disposal technique is enabling the Idaho site to accelerate shipments of legacy nuclear waste for

473

Definition: Data and Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Data and Modeling Techniques Jump to: navigation, search Dictionary.png Data and Modeling Techniques Physical properties and other reservoir performance data are typically used to constrain conceptual and then quantitative models of individual reservoirs. The constraint on individual models is improved as the number of independent data types and sets increases. View on Wikipedia Wikipedia Definition Data modeling in software engineering is the process of creating a data model for an information system by applying formal data modeling techniques. Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Data_and_Modeling_Techniques&oldid=690516"

474

A Distinction Technique Between Volcanic And Tectonic Depression Structures  

Open Energy Info (EERE)

Distinction Technique Between Volcanic And Tectonic Depression Structures Distinction Technique Between Volcanic And Tectonic Depression Structures Based On The Restoration Modeling Of Gravity Anomaly- A Case Study Of The Hohi Volcanic Zone, Central Kyushu, Japan Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Distinction Technique Between Volcanic And Tectonic Depression Structures Based On The Restoration Modeling Of Gravity Anomaly- A Case Study Of The Hohi Volcanic Zone, Central Kyushu, Japan Details Activities (0) Areas (0) Regions (0) Abstract: In this study, we propose a numerical modeling technique which restores the gravity anomaly of tectonic origin and identifies the gravity low of caldera origin. The identification is performed just by comparing the restored gravity anomalies with the observed gravity anomalies, thus we

475

Chemical logging- a geothermal technique | Open Energy Information  

Open Energy Info (EERE)

logging- a geothermal technique logging- a geothermal technique Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Chemical logging- a geothermal technique Details Activities (1) Areas (1) Regions (0) Abstract: Chemical logging studies conducted at the Department of Energy's Raft River Geothermal Test Site in south central Idaho resulted in the development of a technique to assist in geothermal well drilling and resource development. Calcium-alkalinity ratios plotted versus drill depth assisted in defining warm and hot water aquifers. Correlations between the calcium-alkalinity log and lithologic logs were used to determine aquifer types and detection of hot water zones 15 to 120 m before drill penetration. INEL-1 at the Idaho National Engineering Laboratory site in

476

" A Heterodyne Laser-induced Fluorescence Technique to Determine  

NLE Websites -- All DOE Office Websites (Extended Search)

A Heterodyne Laser-induced Fluorescence Technique to Determine A Heterodyne Laser-induced Fluorescence Technique to Determine Simultaneously the Bulk and Time Varying Molecule Velocity Distribution." Inventors Ahmed Diallo, Stephane Mazouffre.The method's primary goal is to determine simultaneously the bulk a The method's primary goal is to determine simultaneously the bulk and the time verying part of the molecule velocity distribution using a heterodyne laser induced fluorescence technique. Used in biology, chemistry and plasma physics laser-induced fluorescence is a well known technique to resolve the bulk velocity distribution of probed molecules and atoms in a medium. The novel approach is aimed at determining not only the bulk distribution, but also the time-varying velocity distribution. The two parts of the velocity distribution are key in the characterization of a

477

Innovative Technique Accelerates Waste Disposal at Idaho Site | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovative Technique Accelerates Waste Disposal at Idaho Site Innovative Technique Accelerates Waste Disposal at Idaho Site Innovative Technique Accelerates Waste Disposal at Idaho Site May 15, 2013 - 12:00pm Addthis A product drum of mixed low-level waste is lowered into a high-density polyethylene macro-pack. A product drum of mixed low-level waste is lowered into a high-density polyethylene macro-pack. Macro-packs from the Idaho site are shown here safely and compliantly disposed. Macro-packs from the Idaho site are shown here safely and compliantly disposed. A product drum of mixed low-level waste is lowered into a high-density polyethylene macro-pack. Macro-packs from the Idaho site are shown here safely and compliantly disposed. IDAHO FALLS, Idaho - An innovative treatment and disposal technique is enabling the Idaho site to accelerate shipments of legacy nuclear waste for

478

Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques |  

Open Energy Info (EERE)

Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques Abstract In order to evaluate the suitability of the soil mercury geochemical survey as a geothermal exploration technique, soil concentrates of mercy are compared to the distribution of measured geothermal gradients at Dixie Valley, Nevada; Roosevelt Hot Springs, Utah; and Nova, Japan. Zones containing high mercury values are found to closely correspond to high geothermal gradient zones in all three areas. Moreover, the highest mercury values within the anomalies are found near the wells with the highest geothermal gradient. Such close correspondence between soil concentrations

479

Airborne electromagnetic surveys as a reconnaissance technique for  

Open Energy Info (EERE)

electromagnetic surveys as a reconnaissance technique for electromagnetic surveys as a reconnaissance technique for geothermal exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Airborne electromagnetic surveys as a reconnaissance technique for geothermal exploration Details Activities (1) Areas (1) Regions (0) Abstract: INPUT airborne electromagnetic (AEM) surveys were conducted during 1979 in five Known Geothermal Resource Areas (KGRA's). AEM work has not been significantly utilized in the past for geothermal purposes because it was thought that a shallow exploration technique would not be effective. Extensive audio-magnetotelluric (AMT) work by the USGS in KGRA's showed that many geothermal systems do have a near-surface electrical signature which should be detectable by an AEM system. INPUT responses in the form of

480

Cavitation methods in therapeutic ultrasound : techniques, mechanisms, and system design  

E-Print Network (OSTI)

Focused ultrasound is currently being developed as a non-invasive thermal ablation technique for benign and cancerous tumors in several organ systems. Although these therapies are designed to ablate tissue purely by thermal ...

Sokka, Shunmugavelu D. (Shunmugavelu Doraivelu), 1975-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual-doppler techniques principal" 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

Advisory Group On The Application Of Nuclear Techniques To Geothermal...  

Open Energy Info (EERE)

Page Edit History Facebook icon Twitter icon Advisory Group On The Application Of Nuclear Techniques To Geothermal Studies-Meeting In Pisa 8-12 Sep 1975 Jump to: navigation,...

482

Companding technique for high dynamic range measurements using Gafchromic films  

Science Conference Proceedings (OSTI)

Purpose: To introduce a methodology to perform dose measurements using Gafchromic films which can span several decades of dose levels. Methods: The technique is based on a rescaling approach using different films irradiated at different dose levels. This is combined with a registration protocol correcting positioning and scaling factors for each film. The methodology is validated using TLD's for out-of-field doses. Furthermore, two examples are provided using the technique to characterize small sized radiosurgery cones and compared with measurements made with a pinpoint chamber. Results: Excellent agreement with TLD, planning systems and measurement was found. The superior resolution of the film technique was apparent. Conclusions: The authors have introduced a new technique allowing users to quantify very low doses in conjunction with commissioning measurements. The use of film also provides 2D information on beam characteristics in high resolution measurements.

Van den Heuvel, Frank; Crijns, Wouter; Defraene, Gilles [Department of Experimental Radiotherapy, Catholic University of Leuven, Leuven, Belgium B-3000 (Belgium)

2011-12-15T23:59:59.000Z

483

New concepts and techniques in eco-composition  

Science Conference Proceedings (OSTI)

This paper has two main objectives: (i) to discuss essential concepts of the ecological approach to composition, proposing the term eco-composition as a common reference for theoretical perspectives and compositional techniques; and (ii) to present ...

Damián Keller; Ariadna Capasso

2006-04-01T23:59:59.000Z

484

Completion techniques for geothermal-geopressured wells. Final report  

DOE Green Energy (OSTI)

The following are covered: oil well completions, water well completions, sand control techniques, geopressured oil and gas wells, and geopressured water well completion. The conclusions for a geothermal-geopressured water well completion and needed research are included. (MHR)

Boyd, W.E.

1974-01-01T23:59:59.000Z

485

Spoken Content Retrieval: A Survey of Techniques and Technologies  

Science Conference Proceedings (OSTI)

Speech media, that is, digital audio and video containing spoken content, has blossomed in recent years. Large collections are accruing on the Internet as well as in private and enterprise settings. This growth has motivated extensive research on techniques ...

Martha Larson; Gareth J. F. Jones

2012-04-01T23:59:59.000Z

486

The characterization of particle clouds using optical imaging techniques  

E-Print Network (OSTI)

Optical imaging techniques can be used to provide a better understanding of the physical properties of particle clouds. The purpose of this thesis is to design, perform and evaluate a set of experiments using optical imaging ...

Bruce, Elizabeth J. (Elizabeth Jane), 1972-

1998-01-01T23:59:59.000Z

487

An Improved Filter Technique for Ice Nucleus Measurements  

Science Conference Proceedings (OSTI)

No satisfactory standard field method has been established for the measurement of ice nucleus concentrations, although the filter technique is a promising candidate if the tendency for ice nucleus concentrations to decrease as the sample volume ...

Chi-Fan Shih; Takeshi Ohtake

1985-09-01T23:59:59.000Z

488

Relevance Feedback Techniques for Color-based Image Retrieval  

Science Conference Proceedings (OSTI)

Color has been widely used in content-based image retrieval systems. The problem with using color is that its representation is low level and hence its retrieval effectiveness is limited. This paper investigates techniques to improving the effectiveness ...

T. S. Chua; W. C. Low; C. X. Chu

1998-10-01T23:59:59.000Z

489

The Spaced Antenna Technique for Radar Wind Profiling  

Science Conference Proceedings (OSTI)

The Doppler method for radar wind profiling of the troposphere and stratosphere has been the standard technique used for operational and most research applications of the instrumentation. An alternative approach for measuring winds, by making use ...

M. F. Larsen; J. Röttger

1989-12-01T23:59:59.000Z

490

Randomizing smartphone malware profiles against statistical mining techniques  

Science Conference Proceedings (OSTI)

The growing use of smartphones opens up new opportunities for malware activities such as eavesdropping on phone calls, reading e-mail and call-logs, and tracking callers' locations. Statistical data mining techniques have been shown to be applicable ...

Abhijith Shastry; Murat Kantarcioglu; Yan Zhou; Bhavani Thuraisingham

2012-07-01T23:59:59.000Z

491

Graph-Theoretic Techniques for Web Content Mining  

Science Conference Proceedings (OSTI)

Describing exciting new opportunities for utilizing robust graph representations of data with common machine learning algorithms, this book demonstrates and investigates these novel techniques through the domain of web content mining.

Adam Schenker; Horst Bunke; Mark Last; Abraham Kandel

2005-05-01T23:59:59.000Z

492

A critical comparison of human face rendering techniques  

E-Print Network (OSTI)

Human skin exhibits complex light reflectance properties that make it difficult to render realistically. In recent years, many techniques have been introduced to render skin, with varying degrees of complexity and realism. ...

Arizpe, Arturo Andrew

2006-01-01T23:59:59.000Z

493

Atmospheric Precorrected Differential Absorption technique to retrieve columnar water vapor  

Science Conference Proceedings (OSTI)

Differential absorption techniques are suitable to retrieve the total column water vapor contents from imaging spectroscopy data. A technique called Atmospheric Precorrected Differential Absorption (APDA) is derived directly from simplified radiative transfer equations. It combines a partial atmospheric correction with a differential absorption technique. The atmospheric path radiance term is iteratively corrected during the retrieval of water vapor. This improves the results especially over low background albedos. The error of the method for various ground reflectance spectra is below 7% for most of the spectra. The channel combinations for two test cases are then defined, using a quantitative procedure, which is based on MODTRAN simulations and the image itself. An error analysis indicates that the influence of aerosols and channel calibration is minimal. The APDA technique is then applied to two AVIRIS images acquired in 1991 and 1995. The accuracy of the measured water vapor columns is within a range of {+-}5% compared to ground truth radiosonde data.

Schlaepfer, D.; Itten, K.I. [Univ. of Zuerich (Switzerland). Dept. of Geography] [Univ. of Zuerich (Switzerland). Dept. of Geography; Borel, C.C. [Los Alamos National Lab., NM (United States)] [Los Alamos National Lab., NM (United States); Keller, J. [Paul Scherrer Inst., Villigen (Switzerland)] [Paul Scherrer Inst., Villigen (Switzerland)

1998-09-01T23:59:59.000Z

494

Techniques of Linear Prediction for Systems with Periodic Statistics  

Science Conference Proceedings (OSTI)

Many parameters that measure climatic variability have nonstationary statistics, that is, they depend strongly on the phase of the annual cycle. In this case normal statistical analysis techniques based on time-invariant models are inappropriate. ...

K. Hasselmann; T. P. Barnett

1981-10-01T23:59:59.000Z

495

The elements of nature: interactive and realistic techniques  

Science Conference Proceedings (OSTI)

This updated course on simulating natural phenomena will cover the latest research and production techniques for simulating most of the elements of nature. The presenters will provide movie production, interactive simulation, and research perspectives ...

Oliver Deusen; David S. Ebert; Ron Fedkiw; F. Kenton Musgrave; Przemyslaw Prusinkiewicz; Doug Roble; Jos Stam; Jerry Tessendorf

2004-08-01T23:59:59.000Z

496

C++ programming techniques for High Performance Computing on systems with  

E-Print Network (OSTI)

C++ programming techniques for High Performance Computing on systems with non-uniform memory access (including NUMA) without sacrificing performance. ccNUMA In High Performance Computing (HPC), shared- memory

Sanderson, Yasmine

497

Development of manufacturing technique for composite structures for robotic applications  

E-Print Network (OSTI)

An experimental study was performed with the aim of developing a technique for manufacturing composite parts for use in dynamic robotic applications in lieu of heavy and expensive metal parts used in conventional robotic ...

Dixon, Theresa, S.B. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

498

Ocean Currents from Successive Satellite Images: The Reciprocal Filtering Technique  

Science Conference Proceedings (OSTI)

Cross-correlation analyses of successive satellite images of the ocean surface can provide estimates of surface currents by tracking features of temperature or ocean color. While the technique successfully identifies many true vectors, it also ...

Ian J. Barton

2002-10-01T23:59:59.000Z

499

The Interpolation of Data Series Using a Constrained Iterating Technique  

Science Conference Proceedings (OSTI)

A consistent interpolation technique, applicable to data series, is presented. Demonstrative examples are given where consistency is defined as conservation of mean or of second-order moment; the interpolants are linear or spline functions. The ...

Ali Harzallah

1995-07-01T23:59:59.000Z

500

Surface space : digital manufacturing techniques and emergent building material  

E-Print Network (OSTI)

This thesis explores tectonic possibilities of new material and forming techniques. The design process is catalyzed by experimenting different configurations of the material.This project attempts to develop inventive ways ...

Ho, Joseph Chi-Chen, 1975-

2002-01-01T23:59:59.000Z