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


1

NREL: Computational Science - Inverse Design  

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

Inverse Design Inverse Design The NREL Computational Science Center collaborates with the High Throughput and Inverse Band Structure (HT/IBS) Group within the Center for Inverse Design (CID) to research, design, and create materials with given target properties. The Center for Inverse Design is an Energy Frontier Research Center of the U.S. Department of Energy Office of Science. To address a crucial scientific grand challenge, the Center is pursuing a new approach to material science. Rather than using the conventional direct approach ("Given the structure, find the electronic properties"), we are using a "materials by inverse design" approach ("Given the desired property, find the structure"). Illustration of a blue arrow pointing to a graphic with three curved lines that represent an electronic structure and blue arrow pointing to a red and blue balls that represent an atomic configuration.

2

Central Internet Database (CID) About the CID  

Office of Environmental Management (EM)

Home > About the CID Home > About the CID Central Internet Database CID Photo Banner About CID Overview Since its public release in 2000, the Central Internet Database (CID) has provided users with Department of Energy (DOE) waste management, cleanup, and facility information. The 2008 update of the CID is the first comprehensive update of the CID since its initial release. Several changes have been made in this new version of the CID. Most importantly the number and types of reports has been changed to reflect current DOE data collection. Also, in an effort to reduce redundancy with other DOE data reporting systems, the CID now directs users to other systems for radioactive waste information. Users will still be able to access the more detailed radioactive waste and contaminated media data previously featured in the CID by using the Archived Reports menu.

3

Center for Inverse Design: Publications  

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

a bell curve on a graph with many points defined. New selection metric for design of thin-film solar cell absorber materials The Center for Inverse Design has developed...

4

Transformation inverse design  

E-Print Network (OSTI)

We present a new technique for the design of transformation-optics devices based on large-scale optimization to achieve the optimal effective isotropic dielectric materials within prescribed index bounds, which is ...

Liu, David

5

CID Standard Reports  

Office of Environmental Management (EM)

CID Reports > Standard CID Reports > Standard Reports Central Internet Database CID Photo Banner Standard Reports Radioactive Waste WIMS-1: WASTE STREAM DISPOSITION FORECAST REPORT Adobe PDF Document Detailed waste stream disposition report by reporting site and disposition site that provides forecasted waste disposition volumes. Go directly to WIMS Exit CID Website to generate custom reports. Although WIMS Exit CID Website is a public site you will need to register and provide contact information the first time you enter WIMS Exit CID Website . Contaminated Groundwater GW-1: CONTAMINATED GROUNDWATER REPORTS A link to the DOE Groundwater Database web site. This site provides detailed information about groundwater plumes at DOE sites. Information includes contaminants, hydrogeology, and cleanup technologies.

6

Central Internet Database (CID)  

Office of Environmental Management (EM)

CID Reports > Archived CID Reports > Archived Reports Central Internet Database CID Photo Banner Archived Reports The reports in the Archived Reports section of the CID are based on the FY 2001 EM Corporate Database (except the Buried TRU Report). The EM Corporate database stores information on radioactive waste, contaminated media, and spent nuclear fuel by identifying "streams" of material. A "stream" is defined as a group of materials, media, or waste having similar origins or management requirements. Radioactive waste, contaminated media, or spent nuclear fuel may be part of more than one "stream" from the time it is generated to the time it is permanently disposed, depending on the physical location or the management activity it is undergoing. The CID retains the "stream" concept as part of its data structure.

7

Central Internet Database (CID) Reports  

Office of Environmental Management (EM)

Home > CID Reports Home > CID Reports Central Internet Database CID Photo Banner Reports The CID offers a choice of standard and archived reports. Standard reports are based on the most recently available DOE data related to the information requirements specified in the Settlement Agreement. Report categories include: Radioactive Waste Spent Nuclear Fuel and High-Level Radioactive Waste Facilities Non-Radioactive Hazardous Waste Toxic Release Inventory Waste The standard reports menu includes reports generated directly by the CID and reports generated by other systems. The CID generated reports allow users to select criteria to customize the report output. For the most current radioactive waste reports, CID users are directed to the Waste Information Management System (WIMS) Exit CID Website . WIMS provides radioactive waste disposition reports and disposition maps. While WIMS is a public site, you need to register and provide contact information the first time you enter WIMS.

8

Center for Inverse Design: Need Help?  

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

Need Help? Use this form to send us your comments and questions, to report problems with the Center for Inverse Design site, or to ask for help in finding information on our site....

9

Center for Inverse Design: Research Thrusts and Subtasks  

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

Research Thrusts and Subtasks The Center for Inverse Design creates an unprecedented coupling of theory and experiment to realize the thesis that inverse design can revolutionize...

10

Inverse Design: Playing "Jeopardy" in Materials Science (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)  

ScienceCinema (OSTI)

'Inverse Design: Playing 'Jeopardy' in Materials Science' was submitted by the Center for Inverse Design (CID) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CID, an EFRC directed by Bill Tumas at the National Renewable Energy Laboratory is a partnership of scientists from five institutions: NREL (lead), Northwestern University, University of Colorado, Stanford University, and Oregon State University. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Inverse Design is 'to replace trial-and-error methods used in the development of materials for solar energy conversion with an inverse design approach powered by theory and computation.' Research topics are: solar photovoltaic, photonic, metamaterial, defects, spin dynamics, matter by design, novel materials synthesis, and defect tolerant materials.

Alex Zunger (former Director, Center for Inverse Design); Tumas, Bill (Director, Center for Inverse Design); CID Staff

2011-11-02T23:59:59.000Z

11

Center for Inverse Design: Collaboration Tool for the Center...  

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

Collaboration Tool for the Center for Inverse Design The SharePoint collaboration tool provides access to research results obtained from various theoretical and experimental...

12

Central Internet Database (CID) PEIS Settlement Information  

Office of Environmental Management (EM)

About the CID > PEIS About the CID > PEIS Settlement Agreement Information Requirements Central Internet Database CID Photo Banner PEIS Settlement Agreement Information Requirements Information Categories: Contaminated environmental media, contaminated facilities, and waste managed by the DOE Environmental Management (EM) program Contaminated facilities and waste generated or managed by the DOE Offices of Defense Programs (DP) Exit CID Website , Science (SC) Exit CID Website , and Nuclear Energy (NE) Exit CID Website . DOE-managed domestic/foreign research reactor spent nuclear fuel (spent fuel from commercial reactors is excluded ). Sites governed by Section 151(b) of the Nuclear Waste Policy Act (NWPA)* Adobe PDF Document Exit CID Website , as amended, upon the transfer of those sites to DOE ownership.

13

STATE OF CALIFORNIA CHARGE INDICATOR DISPLAY (CID)  

E-Print Network (OSTI)

RA3.4.2. If refrigerant charge verification is required for compliance, and a CID has been installed compliance with the refrigerant charge verification requirement for that system, thus submittal of a standard refrigerant charge verification compliance form (MECH 25) is not required for a system that has a passing CID

14

Central Internet Database (CID) Glossary  

Office of Environmental Management (EM)

Glossary Glossary Central Internet Database CID Photo Banner Glossary # | A | B | C | D | E | F | G | H | I | J | K | L | M N | O | P | Q | R | S | T | U | V | W | X | Y | Z # 11e(2) Byproduct Material Tailings or waste produced by the extraction or concentration of uranium or thorium from any ore processed primarily for its source material (i.e., uranium or thorium) content. This excludes underground ores depleted by uranium solution extraction operations (in situ leaching) that continue to remain underground. 11e(2) byproduct material is defined by law under Section 11e(2) of the Atomic Energy Act as amended by Title II of the Uranium Mill Tailings Radiation Control Act of 1978. A Active Facility A facility that is being used to conduct DOE missions and has not yet been transferred to the Office of Environmental Management (EM) for management and/or cleanup.

15

Delivered by Ingenta to University of Groningen (cid 80005873), Rijksuniversiteit Gronigen (cid 291936)  

E-Print Network (OSTI)

Delivered by Ingenta to University of Groningen (cid 80005873), Rijksuniversiteit Gronigen (cid Centre, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands 2 Department of Computer Science, University of Groningen, Blauwborgje 3, NL-9747 AC Groningen, The Netherlands We

16

Central Internet Database (CID) Related Links  

Office of Environmental Management (EM)

Related Links Related Links Central Internet Database CID Photo Banner Links to Waste and Materials Disposition Information Below is a collection of reports and links to various documents that provide information related to waste and material disposition. While most of these are directly related to the Department of Energy's waste management activities, some links include information from the commercial sector. Some of the information provides an historical context for current waste disposition alternatives. To view PDF documents, please ensure Adobe Reader is installed on your computer, it is available to download here Exit CID Website . Waste Volume Related Databases For DOE/EM waste and material stream data: Waste Information Management System (WIMS) provided by Florida International University Exit CID Website

17

Evolving Design Rules for the Inverse Granular Packing Problem  

E-Print Network (OSTI)

If a collection of identical particles is poured into a container, different shapes will fill to different densities. But what is the shape that fills a container as close as possible to a pre-specified, desired density? We demonstrate a solution to this inverse-packing problem by framing it in the context of artificial evolution. By representing shapes as bonded spheres, we show how shapes may be mutated, simulated, and selected to produce particularly dense or loose packing aggregates, both with and without friction. Moreover, we show how motifs emerge linking these shapes together. The result is a set of design rules that function as an effective solution to the inverse packing problem for given packing procedures and boundary conditions. Finally, we show that these results are verified by experiments on 3D-printed prototypes used to make packings in the real world.

Marc Z. Miskin; Heinrich M. Jaeger

2014-03-17T23:59:59.000Z

18

Central Internet Database (CID) Data Dictionary  

Office of Environmental Management (EM)

Archived Data Dictionary Archived Data Dictionary Central Internet Database CID Photo Banner Archived Data Dictionary A | B | C | D | E | F | G | H | I | J | K | L | M N | O | P | Q | R | S | T | U | V | W | X | Y | Z Data Element Name Definition A Annual Stream Disposition Quantity* EM Corp - The quantity of material or waste dispositioned for the stream during a specified year or range of years. Annual Stream Inventory Quantity* EM Corp - The amount of waste, media or SNF in the stream that is or will be stored as of a particular year or range of years. Annual Stream Source Quantity* EM Corp - The amount of waste, media or SNF in the stream that is or will be generated new, generated as process outputs (secondary), or added through a receipt from another DOE or non-DOE site, in a particular year or range of years.

19

Central Internet Database (CID) Data Dictionary  

Office of Environmental Management (EM)

Data Dictionary Data Dictionary Central Internet Database CID Photo Banner Data Dictionary A | B | C | D | E | F | G | H | I | J | K | L | M N | O | P | Q | R | S | T | U | V | W | X | Y | Z Data Element Name Definition A Annual Disposition WIMS - Planned disposition quantity (total volume of container, as disposed, in m3) reported for each year: FY08 through FY50. B C Chemical Name TRI - (Form R - Part II - Section 1.2) The name of the toxic chemical that has been released and/or transferred during the reporting year. Listed toxic chemicals are those chemicals on the list in Committee Print Number 99-169 of the Senate Committee on Environment and Public Works, titled "Toxic Chemicals Subject to Section 313 of the Emergency Planning and Community Right-To-Know Act of 1986" (42 U.S.C. 11023). Currently, there are over 600 toxic chemicals included on the list subject to reporting.

20

CID Gas Recovery Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

CID Gas Recovery Biomass Facility CID Gas Recovery Biomass Facility Jump to: navigation, search Name CID Gas Recovery Biomass Facility Facility CID Gas Recovery Sector Biomass Facility Type Landfill Gas Location Cook County, Illinois Coordinates 41.7376587°, -87.697554° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","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":41.7376587,"lon":-87.697554,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "inverse design cid" 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

Direct Wing Design and Inverse Airfoil Identification with the Nonlinear Weissinger Method  

E-Print Network (OSTI)

A vortex-lattice method for wing aerodynamics that uses nonlinear airfoil data is presented. Two applications of this procedure are presented: Direct Design of a Flying Wing and Inverse Identification from wind tunnel measurements with low-aspect ratio wings. A Newton method is employed, which not only allows very fast solutions to the nonlinear equations but enables the calculation of static and dynamic stability and control derivatives without further cost.

Ranneberg, Maximilian

2015-01-01T23:59:59.000Z

22

Verification, optimization and refinement of a direct-inverse transonic wing design method including weak viscous interaction  

E-Print Network (OSTI)

and Refinement of a. Direct-Inverse Transonic Wing Design Method Including Weak Viscous Interaction. (August 1989) Robert R. Ratcliff, B. S. , Texas A&M University Chair oi' Advisory Committee: Dr. Leland A. Carlson New developments in the direct-inverse wing... AND DISCUSSION . 92 VI V. 1 Bound&ary L&iyer and Wake Effects . . V. 2 Spanwise Grid Skewness V. 3 Wing Planform Effects V. 4 Initial Profile Efi'ects V. 5 Pressure Distribution Compatibility V. 6 Grid Refinement Effects . . V. 7 Fixed Trailing Edge...

Ratcliff, Robert R.

2012-06-07T23:59:59.000Z

23

Lineare Algebra I (lehramtsbezogen) https://www.mi.fu-berlin.de/kvv/course.htm?cid=10310  

E-Print Network (OSTI)

Lineare Algebra I (lehramtsbezogen) https://www.mi.fu-berlin.de/kvv/course.htm?cid=10310 -- kein@math.fu-berlin.de http://page.mi.fu-berlin.de/gmziegler/ FU Berlin, Winter 2011/2012 0. Lineare Geometrie des n¨uhrung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Mi, 19. Oktober 2. Feststellungstest

Ziegler, Günter M.

24

Inverse Problems, Design and Optimization Symposium (IPDO-2013) Albi, France, June 26-28, 2013  

E-Print Network (OSTI)

and unidirectional way to carry out electricity from centralized power plants to consumers [1,2]. Actually to be optimally designed. So, we used first the TRNSYS software to model the thermal behaviour of a single and batteries for electricity storage. The results we obtained in simulation prove that one can design

Paris-Sud XI, Université de

25

Inverse Problems, Design and Optimization Symposium (IPDO-2013) Albi, France, June 26-28, 2013  

E-Print Network (OSTI)

Nash game, devised to reduce a secondary criterion while causing the least degradation to the first to maintain forward motion (to be minimized) 1 INTRODUCTION In engineering design, optimization may proceed consumption, environmental impact); in a second step, one is concerned with the optimization of aerodynamic

Paris-Sud XI, Université de

26

Center for Inverse Design  

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

steps. First, we will articulate a set of desired, physical target properties. For optoelectronic semiconductors the target properties might be, for example, a given value of the...

27

Design of an adaptive-robust controller for a powder coating robot and its comparison with inverse dynamic approach  

Science Journals Connector (OSTI)

In this research, the design and function of DAP, a 3-DOF RRP (rotational/prismatic) dual-acting pick-and-place-painting robot, are first briefly presented and, along ... coating processes. The main function ...

S. M. Safavi; H. R. Hoshyarmanesh

2009-12-01T23:59:59.000Z

28

Fast methods for inverse wave scattering problems  

E-Print Network (OSTI)

Inverse wave scattering problems arise in many applications including computerized/diffraction tomography, seismology, diffraction/holographic grating design, object identification from radar singals, and semiconductor ...

Lee, Jung Hoon, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

29

Optimal Contracts for Outsourced Computation Viet Pham, MHR. Khouzani, Carlos Cid, Royal Holloway University of London  

E-Print Network (OSTI)

- terrestrial life (SETI@Home), investigation of protein folding and computational drug design (Folding@Home

30

Optimal Contracts for Outsourced Computation Viet Pham, MHR. Khouzani, Carlos Cid, Royal Holloway University of London  

E-Print Network (OSTI)

of protein folding and computational drug design (Folding@Home and Rosetta@home). Businesses from different

31

Center for Inverse Design: Publications  

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

K.R. Poeppelmeier, J. Chem. Phys. 138, 194703 (2013). DOI: 10.10631.4804556 Modality 2: TCO-Non-spinel materials Li-doped Cr2MnO4: A new p-type transparent conducting oxide by...

32

Estimation of capillary pressure and relative permeability from formation-tester measurements using Design of Experiment and data-weighing inversion  

E-Print Network (OSTI)

Design of Experiment DoE petrophysics well logging reservoir simulation Laboratory measurements investigate the use of Design of Experiment (DoE) tools to secure a reliable initial guess for nonlinear parameters. Such information is fundamental in the design of a data-weighing scheme that selectively enhances

Torres-Verdín, Carlos

33

Center for Inverse Design: Organization of the Center for Inverse...  

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

(NREL) - Responsibilities: Develop and apply data mining and analysis tools. Specialized Theory: A.J. Freeman, Northwestern University (NU); A. Zunger (CU), S. Lany (NREL) -...

34

Inverse Energy Transfer  

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

which is unstable. It saturates by transfer to a separate, damped eigenmode (i.e., a subcritical spectrum of damped waves). Inverse energy transfer is carried by three-wave...

35

Starter systems designed for efficient air/gas comsumption  

SciTech Connect

This paper examines engine starting systems designed by Pow-R-Quik. Pow-R-Quik's most recent product line includes several models that are designed to start most diesel and natural gas engines. Pow-R-Quick also offers air starting systems for a wide range of gas turbine applications. The model DS16, air or gas starter, is designed for engines with a displacement up to 500 cid diesel and up to 1000 cid natural gas. The DS60 model is also an air or gas operated starter with specially designed heavy duty bearings for maximum performance. To prove out starter durability and performance, Pow-R-Quik has installed three fully instrumented diesel engine test cells. The number of starts that can be achieved ranges from zero to 99,000. The system can be set to regulate the air for low or high pressure starts, control the lubricant, etc.

Not Available

1985-05-01T23:59:59.000Z

36

Global optimization in inverse problem of scatterometry  

E-Print Network (OSTI)

Global optimization in inverse problem of scatterometry Lekbir Afraites1,2 Jerome Hazard3 Patrick as a parametric optimization problem using the Least Square criterion. In this work, a design procedure for global robust optimization is developed using Kriging and global optimization approaches. Robustness

Paris-Sud XI, Université de

37

The Inverse Ising Problem  

Science Journals Connector (OSTI)

Abstract The inverse Ising problem consists of taking a set of Ising configurations generated with unknown interaction parameters, and deter- mining reliable estimates for the values of those interaction parameters. The problem first arose in connection with the Monte Carlo renormalization group, and was solved thirty years ago. Recently, there has been renewed interest in the inverse Ising problem due to biological applications. The original solution seems to have been forgotten, as it was rediscovered in a different representation by Aurell and Ekeberg in 2012. In this paper we modify the earlier equations to solve problems that are not translationally invariant.

Joseph Albert; Robert H. Swendsen

2014-01-01T23:59:59.000Z

38

Grand Challenges | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

2011 - 72014) Center for Inverse Design (CID) 2009-2014 University of Michigan Peter F. Green Center for Solar and Thermal Energy Conversion (CSTEC) 2009-2014 Stanford University...

39

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION  

E-Print Network (OSTI)

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION AND TIE KNOTS Thomas M. A. Fink st. john Introduction 3 1.1 Inverse Protein Folding 3 1.2 Hierarchical Optimisation 5 1.3 Tie Knots 6 1.4 Schematic Organisation 6 1.5 Publications 9 2 Protein Folding, Inverse Protein Folding and Energy Landscapes 10 2

Halligan, Daniel

40

Center for Inverse Design: Staff Biographies  

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

latest chart of efficiencies determined by certified agencieslabs of best research solar cells worldwide from 1976 to present for various PV technologies; check explanatory...

Note: This page contains sample records for the topic "inverse design cid" 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

SciTech Connect: Entropy-Bayesian Inversion of Time-Lapse Tomographic...  

Office of Scientific and Technical Information (OSTI)

the Bayesian estimates from the previous inversion (as a memory function) with new data. The memory function and pilot point design takes advantage of the spatial-temporal...

42

ANALYSIS OF SULFONATES IN AQUEOUS SAMPLES BY ION-PAIR LC/ESI-MS/MS WITH IN-SOURCE CID FOR ADDUCT PEAK ELIMINATION  

SciTech Connect

Determination of low-molecular-weight organic sulfonates (e.g. taurine and cysteic acid) in aqueous solutions is important in many applications of biological, environmental and pharmaceutical sciences. These compounds are difficult to be determined by commonly used reversed-phase liquid chromatographic separation combined with UV-Visible detection because of their high solubility and the lack chromophoric moieties. Here the authors report a method combining ion-pair liquid chromatography and electrospray ionization tandem mass spectrometry (IPLC/ESI-MS/MS)for determining sulfonates. The ability of low-molecular-weight sulfonates to form ion-pairs with quaternary ammonium cations in aqueous solutions allowed LC separation with a C{sub 18} column. Detection of the sulfonates was accomplished with ESI-MS that lends a universal mode of mass detection for polar, water soluble compounds. An in-source collision induced dissociation (CID) was applied to eliminate the adduct peaks in mass spectra. Characteristic marker ions showed in the second stage mass spectra lent a method for identifying sulfonates.

OUYANG,S.; VAIRAVAMURTHY,M.A.

1999-06-13T23:59:59.000Z

43

A study of generalized inverses  

E-Print Network (OSTI)

A STUDY OF GENERALIZED INVERSES A Thesis by NANCY LEE MCKINNEY Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1973 Major Subject: Mathematics A... STUDY OF GENERALIZED INVERSES A Thesis by NANCY LEE MCKINNEY Approved as to style and content by: airman o ittee Hea o epartment e er Me er August 1973 ABSTRACT A Study of Generalized Inverses. (August 1973) Nancy Lee NcKinney, B. A...

McKinney, Nancy Lee

1973-01-01T23:59:59.000Z

44

Inverse Problems and Industrial Mathematics  

E-Print Network (OSTI)

line coke ore charging of ore and coke layers indirect reduction of ore by CO and H2 Inverse Problems in process parameters - charging strategy (distribution of coke-ore layers) - different raw materials Inverse and uniform quality of produced liquid iron - the decrease of coke consumption - a uniform gas mass flow

Fulmek, Markus

45

Inverse problems in multifractal analysis  

E-Print Network (OSTI)

Multifractal formalism is designed to describe the distribution at small scales of the elements of $\\mathcal M^+_c(\\R^d)$, the set of positive, finite and compactly supported Borel measures on $\\R^d$. It is valid for such a measure $\\mu$ when its Hausdorff spectrum is the upper semi-continuous function given by the concave Legendre-Fenchel transform of the free energy function $\\tau_\\mu$ associated with $\\mu$; this is the case for fundamental classes of exact dimensional measures. For any function $\\tau$ candidate to be the free energy function of some $\\mu\\in \\mathcal M^+_c(\\R^d)$, we build such a measure, exact dimensional, and obeying the multifractal formalism. This result is extended to a refined formalism considering jointly Hausdorff and packing spectra. Also, for any upper semi-continuous function candidate to be the lower Hausdorff spectrum of some exact dimensional $\\mu\\in\\mathcal M^+_c(\\R^d)$, we build such a measure. Our results transfer to the analoguous inverse problems in multifractal analysis of H\\"older continuous functions.

Julien Barral

2014-09-29T23:59:59.000Z

46

Design  

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

Design Design of a Multithreaded Barnes-Hut Algorithm for Multicore Clusters Technical Report Junchao Zhang and Babak Behzad Department of Computer Science, University of Illinois at Urbana-Champaign {jczhang, bbehza2}@illinois.edu Marc Snir Department of Computer Science, University of Illinois at Urbana-Champaign and MCS Division, Argonne National Laboratory snir@anl.gov Abstract We describe in this paper an implementation of the Barnes-Hut al- gorithm on multicore clusters. Based on a partitioned global ad- dress space (PGAS) library, the design integrates intranode mul- tithreading and internode one-sided communication, exemplifying a PGAS + X programming style. Within a node, the computation is decomposed into tasks (subtasks), and multitasking is used to hide network latency. We study the tradeoffs between locality in private caches and locality in shared caches

47

Chapter 6 - Seismic Inversion Techniques  

Science Journals Connector (OSTI)

Abstract Seismic inversion techniques were developed as a discipline at the same time that seismic technologies were widely applied in oil exploration and development starting in the 1980s. Except for basic theories and principles, seismic inversion techniques are different from traditional seismic exploration methods in geological tasks, involving basic information as well as study approaches. In the early stages of exploration, the geological task of seismic exploration was to find structures and identify traps, and seismic exploration techniques always focused on the ups and downs of reflection interfaces. They mainly relied on the travel time for structural interpretation. The main work of reservoir geophysics is to study the heterogeneity of a reservoir, and the main geological task is to make predictions on the reservoir parameters. Scientists focus on the lateral variation of reservoir characteristics and conduct seismic interpretation based on the information extracted from the results of reservoir seismic inversion. Seismic inversion has developed rapidly in recent years, including recursive inversion, log-constrained inversion, and multiparameter lithological seismic inversion. We choose different methods according to the geological characteristics and specific problems of the study area.

Ming Li; Yimin Zhao

2014-01-01T23:59:59.000Z

48

PROGRESS ON A NEW EXPERIMENTAL TEST OF THE GRAVITATIONAL INVERSE-SQUARE LAW  

E-Print Network (OSTI)

1 PROGRESS ON A NEW EXPERIMENTAL TEST OF THE GRAVITATIONAL INVERSE-SQUARE LAW R.M. BONICALZI, P from an oscillating torsion-pendulum experiment searching for gravitational inverse square law Relativity, i.e. Newton's Law of Universal Gravitation. The experiment reported here is designed

Newman, Riley D.

49

An Ankle-Foot Prosthesis Emulator with Control of Plantarflexion and Inversion-Eversion Torques  

E-Print Network (OSTI)

An Ankle-Foot Prosthesis Emulator with Control of Plantarflexion and Inversion-Eversion Torques Steven H. Collins,1,2,, Myunghee Kim,1, Tianjian Chen1, and Tianyao Chen3 Abstract--Ankle inversion, in robotic devices could improve balance for people with amputation. We designed a tethered ankle

Collins, Steven H.

50

Inversion of the star transform  

E-Print Network (OSTI)

We define the star transform as a generalization of the broken ray transform introduced by us in previous work. The advantages of using the star transform include the possibility to reconstruct the absorption and the scattering coefficients of the medium separately and simultaneously (from the same data) and the possibility to utilize scattered radiation which, in the case of the conventional X-ray tomography, is discarded. In this paper, we derive the star transform from physical principles, discuss its mathematical properties and analyze numerical stability of inversion. In particular, it is shown that stable inversion of the star transform can be obtained only for configurations involving odd number of rays. Several computationally-efficient inversion algorithms are derived and tested numerically.

Fan Zhao; John C. Schotland; Vadim A. Markel

2014-05-06T23:59:59.000Z

51

Solving the inverse problem of noise-driven dynamic networks  

E-Print Network (OSTI)

Nowadays massive amount of data are available for analysis in natural and social systems. Inferring system structures from the data, i.e., the inverse problem, has become one of the central issues in many disciplines and interdisciplinary studies. In this Letter, we study the inverse problem of stochastic dynamic complex networks. We derive analytically a simple and universal inference formula called double correlation matrix (DCM) method. Numerical simulations confirm that the DCM method can accurately depict both network structures and noise correlations by using available kinetic data only. This inference performance was never regarded possible by theoretical derivation, numerical computation and experimental design.

Zhang, Zhaoyang; Niu, Haijing; Mi, Yuanyuan; Wu, Si; Hu, Gang

2014-01-01T23:59:59.000Z

52

MIT inverse Compton source concept  

E-Print Network (OSTI)

A compact X-ray source based on inverse Compton scattering of a high-power laser on a high-brightness linac beam is described. The facility can operate in two modes: at high (MHz) repetition rate with flux and brilliance ...

Graves, William S.

53

Multiparameter inversion in anisotropic elastic media  

Science Journals Connector (OSTI)

......volume fractions of sand and shale in a finely layered sand-shale sequence. 4 Anisotropic Inversion Via An Inverse Generalized...1994. An in situ estimation of anisotropic elastic moduli for a submarine shale.. J. geophys. Res., 99......

Robert Burridge; Maarten V. de Hoop; Douglas Miller; Carl Spencer

1998-09-01T23:59:59.000Z

54

NUMERICAL SOLUTION OF AN INVERSE OBSTACLE ...  

E-Print Network (OSTI)

such as nanotechnology, biology, information storage, and surface chemistry. Recently novel approaches have been developed for solving a class of inverse...

2014-09-30T23:59:59.000Z

55

Inverse free electron laser accelerator for advanced light sources  

We discuss the inverse free electron laser (IFEL) scheme as a compact high gradient accelerator solution for driving advanced light sources such as a soft x-ray free electron laser amplifier or an inverse Compton scattering based gamma-ray source. In particular, we present a series of new developments aimed at improving the design of future IFEL accelerators. These include a new procedure to optimize the choice of the undulator tapering, a new concept for prebunching which greatly improves the fraction of trapped particles and the final energy spread, and a self-consistent study of beam loading effects which leads to an energy-efficient high laser-to-beam power conversion.

Duris, J. P.; Musumeci, P.; Li, R. K.

2012-06-01T23:59:59.000Z

56

Support minimized inversion of acoustic and elastic wave scattering  

SciTech Connect

This report discusses the following topics on support minimized inversion of acoustic and elastic wave scattering: Minimum support inversion; forward modelling of elastodynamic wave scattering; minimum support linearized acoustic inversion; support minimized nonlinear acoustic inversion without absolute phase; and support minimized nonlinear elastic inversion.

Safaeinili, A.

1994-04-24T23:59:59.000Z

57

Compact x-ray source based on burst-mode inverse Compton scattering at 100kHz  

E-Print Network (OSTI)

A design for a compact x-ray light source (CXLS) with flux and brilliance orders of magnitude beyond existing laboratory scale sources is presented. The source is based on inverse Compton scattering of a high brightness ...

Bessuille, J.

58

MODEL SELECTION FOR SPECTROPOLARIMETRIC INVERSIONS  

SciTech Connect

Inferring magnetic and thermodynamic information from spectropolarimetric observations relies on the assumption of a parameterized model atmosphere whose parameters are tuned by comparison with observations. Often, the choice of the underlying atmospheric model is based on subjective reasons. In other cases, complex models are chosen based on objective reasons (for instance, the necessity to explain asymmetries in the Stokes profiles) but it is not clear what degree of complexity is needed. The lack of an objective way of comparing models has, sometimes, led to opposing views of the solar magnetism because the inferred physical scenarios are essentially different. We present the first quantitative model comparison based on the computation of the Bayesian evidence ratios for spectropolarimetric observations. Our results show that there is not a single model appropriate for all profiles simultaneously. Data with moderate signal-to-noise ratios (S/Ns) favor models without gradients along the line of sight. If the observations show clear circular and linear polarization signals above the noise level, models with gradients along the line are preferred. As a general rule, observations with large S/Ns favor more complex models. We demonstrate that the evidence ratios correlate well with simple proxies. Therefore, we propose to calculate these proxies when carrying out standard least-squares inversions to allow for model comparison in the future.

Asensio Ramos, A.; Manso Sainz, R.; Martinez Gonzalez, M. J.; Socas-Navarro, H. [Instituto de Astrofisica de Canarias, E-38205, La Laguna, Tenerife (Spain); Viticchie, B. [ESA/ESTEC RSSD, Keplerlaan 1, 2200 AG Noordwijk (Netherlands); Orozco Suarez, D., E-mail: aasensio@iac.es [National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan)

2012-04-01T23:59:59.000Z

59

Migration/inversion for transversely isotropic elastic media  

Science Journals Connector (OSTI)

......Inverse scattering solutions in anisotropic media, inGeophysical Inversion...plane-layered isotropic and anisotropic media by the state-space...1990 Velocity anisotropy in shale determined from crosshole...migration/inversion method for anisotropic elastic media. Our derivation......

David W. S. Eaton; Robert R. Stewart

1994-11-01T23:59:59.000Z

60

Inversion-free, noiseless Raman echoes  

E-Print Network (OSTI)

Using double optical Raman rephasing, an inversion-free resonant Raman echo is studied in an inhomogeneously broadened spin ensemble of a solid medium, where the Raman optical field-excited spin coherence has a frozen propagation vector. Unlike photon echoes whose quantum memory application is strictly limited due to \\pi rephasing pulse-induced population inversion causing quantum noises, the optical Raman field-excited spin echo is inherently silent owing to the frozen propagation vector. Thus, the doubly rephased Raman echo can be directly applied for quantum interface in a population inversion-free environment.

Byoung S. Ham

2011-11-20T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

Local Uniqueness for the Fixed Energy Fixed Angle Inverse Problem ...  

E-Print Network (OSTI)

Abstract. We prove local uniqueness for the inverse problem in obstacle scattering at a fixed energy and fixed incident angle. We consider the inverse problem of...

62

Joint inversion of electrical and seismic data for Fracture char...  

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

Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems Joint inversion of electrical and seismic data for Fracture char....

63

Inverse transonic wing design on a vector processer  

E-Print Network (OSTI)

equation 39 0. 05 je 0. 0$ 0 o U 0. 02 Aotual CoorcLinates 0. 01 p Coordinates Obtained From ZZBRA II 0. 0 0. 5 0. 6 0. 7 0. 8 x/c 0. 9 1. 0 Figure g. Ordana eS attained ran reeidual equatiOn SluoeS 40 The equation for the slopes in the fu'1...

Anderson, William Kyle

2012-06-07T23:59:59.000Z

64

Center for Inverse Design Highlight: Enabling Practical p-Type...  

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

enable high levels of p-type doping, the potential compensating hole-killing oxygen vacancies endemic to many oxides must be avoided. - Theory predicted A 2 BO 4 spinels will...

65

Inverse Problems Regularized by Sparsity Martin Vetterli  

E-Print Network (OSTI)

the nuclear fallout of Fukushima? Conclusions Acknowledgements 1 #12;#12;Introduction: Sparsity is good example Forward model y(0, 0) = - x( + 0, tan 0) d Inverse ^x(, ) s.t. ^y(, ) y(, ) Usually

Combettes, Patrick Louis

66

A scalable framework for the solution of stochastic inverse problems using a sparse grid collocation approach  

SciTech Connect

Experimental evidence suggests that the dynamics of many physical phenomena are significantly affected by the underlying uncertainties associated with variations in properties and fluctuations in operating conditions. Recent developments in stochastic analysis have opened the possibility of realistic modeling of such systems in the presence of multiple sources of uncertainties. These advances raise the possibility of solving the corresponding stochastic inverse problem: the problem of designing/estimating the evolution of a system in the presence of multiple sources of uncertainty given limited information. A scalable, parallel methodology for stochastic inverse/design problems is developed in this article. The representation of the underlying uncertainties and the resultant stochastic dependant variables is performed using a sparse grid collocation methodology. A novel stochastic sensitivity method is introduced based on multiple solutions to deterministic sensitivity problems. The stochastic inverse/design problem is transformed to a deterministic optimization problem in a larger-dimensional space that is subsequently solved using deterministic optimization algorithms. The design framework relies entirely on deterministic direct and sensitivity analysis of the continuum systems, thereby significantly enhancing the range of applicability of the framework for the design in the presence of uncertainty of many other systems usually analyzed with legacy codes. Various illustrative examples with multiple sources of uncertainty including inverse heat conduction problems in random heterogeneous media are provided to showcase the developed framework.

Zabaras, N. [Materials Process Design and Control Laboratory, Sibley School of Mechanical and Aerospace Engineering, 101 Frank H.T. Rhodes Hall, Cornell University, Ithaca, NY 14853-3801 (United States)], E-mail: zabaras@cornell.edu; Ganapathysubramanian, B. [Materials Process Design and Control Laboratory, Sibley School of Mechanical and Aerospace Engineering, 101 Frank H.T. Rhodes Hall, Cornell University, Ithaca, NY 14853-3801 (United States)

2008-04-20T23:59:59.000Z

67

INVERSE-SQUARE LAW TESTS 1 TESTS OF THE GRAVITATIONAL  

E-Print Network (OSTI)

INVERSE-SQUARE LAW TESTS 1 TESTS OF THE GRAVITATIONAL INVERSE-SQUARE LAW E.G.Adelberger, B-1560 KEYWORDS: gravitation, experimental tests of inverse-square law, quantum gravity, extra dimensions ABSTRACT: We review recent experimental tests of the gravitational inverse-square law, and the wide variety

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

68

Population inversion in Landau-quantized graphene  

E-Print Network (OSTI)

Landau level lasers have the advantage of tunability of the laser frequency by means of the external magnetic field. The crucial prerequisite of such a laser is a population inversion between optically coupled Landau levels. Efficient carrier-carrier and carrier-phonon scattering generally suppresses this effect in conventional materials. Based on microscopic calculations, we predict for the first time the occurrence of a long-lived population inversion in Landau-quantized graphene and reveal the underlying many-particle mechanisms. To guide the experimental demonstration, we present optimal conditions for the observation of a maximal population inversion in terms of experimentally accessible parameters, such as the strength of the magnetic field, pump fluence, temperature, and doping. We reveal that in addition to the tunability of the Landau-level laser frequency, also the polarization of the emitted light can be tuned via gate voltage controlling the doping of the sample.

Wendler, Florian

2014-01-01T23:59:59.000Z

69

JORDAN GEOMETRIES BY INVERSIONS WOLFGANG BERTRAM  

E-Print Network (OSTI)

JORDAN GEOMETRIES BY INVERSIONS WOLFGANG BERTRAM Abstract. Jordan geometries are defined as spaces equipped with point reflections Sx fixing x, and therefore the theories of Jordan geometries actions of torsors and of symmetric spaces is introduced. Jordan geometries give rise both to symmetry

70

"Sousveillance": inverse surveillance in multimedia imaging  

Science Journals Connector (OSTI)

This is a personal narrative that began 30 years ago as a childhood hobby, of wearing and implanting various sensors, effectors, and multimedia computation in order to re-define personal space and modify sensory perception computationally. This work ... Keywords: computer mediated reality, cyborglog, equiveillance, eyetap, inverse surveillance, sousveillance, surveillance, weblog

Steve Mann

2004-10-01T23:59:59.000Z

71

Focusing Inversion of Electroencephalography and Magnetoencephalography Data  

E-Print Network (OSTI)

or magnetic #12;eld recorded outside of the head. In this paper, we present a new minimization technique to the inverse bioelectric and biomagnetic #12;eld problems are functional brain studies and clinical diagnosis of neural disease, such as epilepsy. In functional brain studies, sensory signals stimulate the subject

Utah, University of

72

Invisibility and Inverse Problems Allan Greenleaf  

E-Print Network (OSTI)

Invisibility and Inverse Problems Allan Greenleaf Yaroslav Kurylev Matti Lassas, Gunther Uhlmann§ Abstract We describe recent theoretical and experimental progress on mak- ing objects invisible. Ideas issues involved. 1 Introduction Invisibility has been a subject of human fascination for millennia, from

Uhlmann, Gunther

73

Importance of Elevation and Temperature Inversions for the Interpretation  

Open Energy Info (EERE)

Importance of Elevation and Temperature Inversions for the Interpretation Importance of Elevation and Temperature Inversions for the Interpretation of Thermal Infrared Satellite Images Used in Geothermal Exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Importance of Elevation and Temperature Inversions for the Interpretation of Thermal Infrared Satellite Images Used in Geothermal Exploration Details Activities (1) Areas (1) Regions (0) Abstract: Examples of nighttime temperature inversions are shown in thermal infrared satellite images collected over the Coso geothermal field in eastern California. Temperature-elevation plots show the normal trend of temperature decrease with elevation, on which temperature inversions appear superimposed as opposite trends. Such inversions are common and they should

74

Probing Pulsar Winds Using Inverse Compton Scattering  

E-Print Network (OSTI)

We investigate the effects of inverse Compton scattering by electrons and positrons in the unshocked winds of rotationally-powered binary pulsars. This process can scatter low energy target photons to produce gamma rays with energies from MeV to TeV. The binary radio pulsars PSR B1259-63 and PSR J0045-73 are both in close eccentric orbits around bright main sequence stars which provide a huge density of low energy target photons. The inverse Compton scattering process transfers momentum from the pulsar wind to the scattered photons, and therefore provides a drag which tends to decelerate the pulsar wind. We present detailed calculations of the dynamics of a pulsar wind which is undergoing inverse Compton scattering, showing that the deceleration of the wind of PSR B1259-63 due to `inverse Compton drag' is small, but that this process may confine the wind of PSR J0045-73 before it attains pressure balance with the outflow of its companion star. We calculate the spectra and light curves of the resulting inverse Compton emission from PSR B1259-63 and show that if the size of the pulsar wind nebula is comparable to the binary separation, then the gamma-ray emission from the unshocked wind may be detectable by atmospheric Cerenkov detectors or by the new generation of satellite-borne gamma-ray detectors such as INTEGRAL and GLAST. This mechanism may therefore provide a direct probe of the freely-expanding regions of pulsar winds, previously thought to be invisible.

Lewis Ball; J. G. Kirk

1999-08-18T23:59:59.000Z

75

The inverse problems of wing panel manufacture processes  

SciTech Connect

It is shown that inverse problems of steady-state creep bending of plates in both the geometrically linear and nonlinear formulations can be represented in a variational formulation. Steady-state values of the obtained functionals corresponding to the solutions of the problems of inelastic deformation and springback are determined by applying a finite element procedure to the functionals. Optimal laws of creep deformation are formulated using the criterion of minimizing damage in the functionals of the inverse problems. The formulated problems are reduced to the problems solved by the finite element method using MSC.Marc software. Currently, forming of light metals poses tremendous challenges due to their low ductility at room temperature and their unusual deformation characteristics at hot-cold work: strong asymmetry between tensile and compressive behavior, and a very pronounced anisotropy. We used the constitutive models of steady-state creep of initially transverse isotropy structural materials the kind of the stress state has influence. The paper gives basics of the developed computer-aided system of design, modeling, and electronic simulation targeting the processes of manufacture of wing integral panels. The modeling results can be used to calculate the die tooling, determine the panel processibility, and control panel rejection in the course of forming.

Oleinikov, A. I., E-mail: a.i.oleinikov@mail.ru [Komsomolsk-on-Amur State Technical University, Lenina prospect 27, Komsomolsk-on-Amur, 681013, Russian Federation, and Institute of Machinery and Metallurgy Far Eastern Branch of the Russian Academy of Sciences, Metallurgov Street 1, Komsomolsk-on-Am (Russian Federation); Bormotin, K. S., E-mail: cvmi@knastu.ru [Komsomolsk-on-Amur State Technical University, Lenina prospect 27, Komsomolsk-on-Amur, 681013, Russian Federation (Russian Federation)

2013-12-16T23:59:59.000Z

76

Three-dimensional modelling and inversion of dc resistivity data incorporating topography II. Inversion  

Science Journals Connector (OSTI)

......geometric factors. However, the inversion process became instable and parameter values exceeded...Therefore, we split up the forward process into two parts: the time-intensive...criterion, in 69th Annual Internat. Mtg., Soc. Expl. Geophys., Expanded......

Thomas Gnther; Carsten Rcker; Klaus Spitzer

2006-08-01T23:59:59.000Z

77

Forming Analysis of AZ31 Magnesium Alloy Sheets by Means of a Multistep Inverse Approach  

SciTech Connect

This paper applies a multi-step inverse approach to predict the forming of AZ31 magnesium alloy sheets. An in-house finite element code named INAPH, which implements the inverse approach formulation by Guo et al. (Int. J. Numer. Methods Eng., 30, 1385-1401), has been used for the forming analysis. This inverse approach uses the deformation theory of plasticity and assumes that the deformation is independent of the loading history. Failure during forming is predicted by a stress-based criterion or a forming limit diagram-based criterion. The INAPH predictions have been compared with experimental results of Takuda et al (Journal of Materials Processing Technology, 89-90:135-140) and incremental analysis using ABAQUS. The multi-step inverse analysis has been shown to very quickly and fairly accurately predict stress, plastic strain, thickness distributions and failure locations on deeply drawn parts made of AZ31 magnesium alloy. The capability of INAPH to predict the formability of magnesium alloys has also been demonstrated at various temperatures. As magnesium alloys possess very limited formability at room temperature, and their formability becomes better at higher temperatures (> 100oC), the inverse analysis constitutes an efficient and valuable tool to predict forming of magnesium alloy parts as a function of temperature. In addition, other processing and design parameters such as the initial dimensions, final desired shape, blank holder forces, and friction can be quickly adjusted to assess the forming feasibility.

Nguyen, Ba Nghiep; Bapanapalli, Satish K.

2009-04-01T23:59:59.000Z

78

COLLOQUIUM: Seismic Imaging and Inversion Based on Spectral-Element...  

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

shear attenuation and impedance contrasts. We apply this method to study seismic inverse problems at various scales, from exploration-scale full-waveform inversion to global-scale...

79

E-Print Network 3.0 - anatomy-based inverse planning Sample Search...  

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

in Fully-Discretized Inverse Problems of Summary: of Iterative Prescription Refinement (IPR) for inverse planning in any fully-discretized model of radiation... ), for inverse...

80

E-Print Network 3.0 - attenuated inversion recovery Sample Search...  

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

of a linear inverse problem. A full... values. 12;The Inverse DWT Since the wavelet transform matrix is orthonormal, Hence... the inverse transform is given by: ...

Note: This page contains sample records for the topic "inverse design cid" 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

Inverse time-of-flight spectrometer for beam plasma research  

Science Journals Connector (OSTI)

The paper describes the design and principle of operation of an inverse time-of-flight spectrometer for research in the plasma produced by an electron beam in the forevacuum pressure range (520 Pa). In the spectrometer the deflecting plates as well as the drift tube and the primary ion beam measuring system are at high potential with respect to ground. This provides the possibility to measure the mass-charge constitution of the plasma created by a continuous electron beam with a current of up to 300 mA and electron energy of up to 20 keV at forevacuum pressures in the chamber placed at ground potential. Research results on the mass-charge state of the beam plasma are presented and analyzed.

A. V. Tyunkov; K. P. Savkin

2014-01-01T23:59:59.000Z

82

Inverse transport calculations in optical imaging with subspace optimization algorithms  

Science Journals Connector (OSTI)

Inverse boundary value problems for the radiative transport equation play an important role in optics-based medical imaging techniques such as diffuse optical tomography (DOT) and fluorescence optical tomography (FOT). Despite the rapid progress in the ... Keywords: Diffuse optical tomography, Fluorescence optical tomography, Inverse problems, Inverse transport problems, Optical imaging, Radiative transport equation, Singular value decomposition, Subspace optimization method

Tian Ding, Kui Ren

2014-09-01T23:59:59.000Z

83

Aquifer Structure Identification Using Stochastic Inversion  

SciTech Connect

This study presents a stochastic inverse method for aquifer structure identification using sparse geophysical and hydraulic response data. The method is based on updating structure parameters from a transition probability model to iteratively modify the aquifer structure and parameter zonation. The method is extended to the adaptive parameterization of facies hydraulic parameters by including these parameters as optimization variables. The stochastic nature of the statistical structure parameters leads to nonconvex objective functions. A multi-method genetically adaptive evolutionary approach (AMALGAM-SO) was selected to perform the inversion given its search capabilities. Results are obtained as a probabilistic assessment of facies distribution based on indicator cokriging simulation of the optimized structural parameters. The method is illustrated by estimating the structure and facies hydraulic parameters of a synthetic example with a transient hydraulic response.

Harp, Dylan R [Los Alamos National Laboratory; Dai, Zhenxue [Los Alamos National Laboratory; Wolfsberg, Andrew V [Los Alamos National Laboratory; Vrugt, Jasper A [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

84

Fast inversion of solar Ca II spectra  

E-Print Network (OSTI)

We present a fast (solar Ca II lines. The code uses an archive of spectra that are synthesized prior to the inversion under the assumption of local thermodynamic equilibrium (LTE). We show that it can be successfully applied to spectrograph data or more sparsely sampled spectra from two-dimensional spectrometers. From a comparison to a non-LTE inversion of the same set of spectra, we derive a first-order non-LTE correction to the temperature stratifications derived in the LTE approach. The correction factor is close to unity up to log tau ~ -3 and increases to values of 2.5 and 4 at log tau = -6 in the quiet Sun and the umbra, respectively.

Beck, C; Rezaei, R; Louis, R E

2014-01-01T23:59:59.000Z

85

Inverse hydrochemical models of aqueous extracts tests  

SciTech Connect

Aqueous extract test is a laboratory technique commonly used to measure the amount of soluble salts of a soil sample after adding a known mass of distilled water. Measured aqueous extract data have to be re-interpreted in order to infer porewater chemical composition of the sample because porewater chemistry changes significantly due to dilution and chemical reactions which take place during extraction. Here we present an inverse hydrochemical model to estimate porewater chemical composition from measured water content, aqueous extract, and mineralogical data. The model accounts for acid-base, redox, aqueous complexation, mineral dissolution/precipitation, gas dissolution/ex-solution, cation exchange and surface complexation reactions, of which are assumed to take place at local equilibrium. It has been solved with INVERSE-CORE{sup 2D} and been tested with bentonite samples taken from FEBEX (Full-scale Engineered Barrier EXperiment) in situ test. The inverse model reproduces most of the measured aqueous data except bicarbonate and provides an effective, flexible and comprehensive method to estimate porewater chemical composition of clays. Main uncertainties are related to kinetic calcite dissolution and variations in CO2(g) pressure.

Zheng, L.; Samper, J.; Montenegro, L.

2008-10-10T23:59:59.000Z

86

Use of the Inverse Approach for the Manufacture and Decoration of Food Cans  

SciTech Connect

Innovation is a key objective in the metal packaging industry in order to produce new concepts, designs, shapes and printing. Simulation technology now allows both the can design as well as the manufacturing process to be carefully analysed before any physical prototypes or dies have been manufactured. These simulations are traditionally carried out using incremental simulation methodologies. However, much information may also be attained by using the inverse approach: the initial blank format for the can body as well as its lid may be optimised much faster, the actual decoration of the can may be evaluated and even calculated when deformation printing techniques are utilised. This paper presents some of the technical details relating to the inverse approach employed in Stampack to carry out simulations important for the manufacture of food cans that are shown via industrial.

Duffett, G.A.; Forgas, A.; Neamtu, L. [Quantech ATZ, Barcelona (Spain); Naceur, H.; Batoz, J.L.; Guo, Y.Q. [Divergent Consultants, Centre de Transfert, Compiegne (France)

2005-08-05T23:59:59.000Z

87

Inversion of marine magnetic anomalies by deconvolution  

E-Print Network (OSTI)

. Fahlqu st (Member) Terry W. encer (M er) Earl R. Hoskins (Head of Department) December 1983 ABSTRACT Inversion Of Marine Magnetic Anomalies By Deconvolution (December, 1983) Dennis Lee Harry B. S. , Texas A&M University Co... magnetization, j(x), with a transfer function, g(x), which is dependant upon the location and orientation of the anomaly profile and the ridge axis relative to the earth's present magnetic field [Bott, 1967]. This is expressed as f(x) f g(x-C) ](C) d0...

Harry, Dennis Lee

1983-01-01T23:59:59.000Z

88

Photonic Design: From Fundamental Solar Cell Physics to Computational Inverse Design  

E-Print Network (OSTI)

the levelized cost of energy of photovoltaic systems,an efficient and cost-effective way. Photovoltaic cells are

Miller, Owen Dennis

2012-01-01T23:59:59.000Z

89

Photonic Design: From Fundamental Solar Cell Physics to Computational Inverse Design  

E-Print Network (OSTI)

of next-generation solar technologies. Part II approachesfor next-generation solar technologies. Conclusions Thislimit for any solar cell technology will require light

Miller, Owen Dennis

2012-01-01T23:59:59.000Z

90

Photonic Design: From Fundamental Solar Cell Physics to Computational Inverse Design  

E-Print Network (OSTI)

limit for any solar cell technology will require lightof next-generation solar cell technologies, examining thes prospects as a solar cell technology. There is a well-

Miller, Owen Dennis

2012-01-01T23:59:59.000Z

91

Photonic Design: From Fundamental Solar Cell Physics to Computational Inverse Design  

E-Print Network (OSTI)

of state-of-the-art photovoltaic cells, Progress ineffective way. Photovoltaic cells are the most promisingthe absorptivity of photovoltaic cell: the material absorp-

Miller, Owen Dennis

2012-01-01T23:59:59.000Z

92

Photonic Design: From Fundamental Solar Cell Physics to Computational Inverse Design  

E-Print Network (OSTI)

efficiencies for photovoltaic energy conversion, Solaraspects of photovoltaic solar energy conversion, Solarlevelized cost of energy of photovoltaic systems, Renew-

Miller, Owen Dennis

2012-01-01T23:59:59.000Z

93

Probing sequence-structure relationships in proteins: Application of simple energy functions to the inverse folding problem  

E-Print Network (OSTI)

A brief description of the protein-folding and inverse-folding problems is provided. Design of energy are applied to estimate the sequence capacity of all known protein folds, and to compute the evolutionary for recognition of protein folds, and conclude with an application to protein evolution, studying the sequence

Elber, Ron

94

Stochastic Joint Inversion for Integrated Data Interpretation in Geothermal Exploration  

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

Stochastic Joint Inversion for Integrated Data Interpretation in Geothermal Exploration presentation at the April 2013 peer review meeting held in Denver, Colorado.

95

7. Twisted_inverse_image.pdf - Department of Mathematics, Purdue ...  

E-Print Network (OSTI)

Feb 20, 2009 ... Suresh Nayak extended Nagata's theorem, and hence the twisted inverse image, to essentially finite-type separated maps [arXiv:0809.1201].

2009-02-22T23:59:59.000Z

96

conference on inverse problems in honor of gunther uhlmann  

E-Print Network (OSTI)

Jun 18, 2012 ... These more general transforms come up in seismic imaging (inverse .... proof backed up by experimental evidence that Maxwell's fish eye in.

2012-06-20T23:59:59.000Z

97

Joint inversion of electrical and seismic data for Fracture char...  

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

Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems Michael Batzle, PI Colorado School of Mines Track Name: Fluid...

98

Importance of Elevation and Temperature Inversions for the Interpretat...  

Open Energy Info (EERE)

Geothermal Exploration Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Importance of Elevation and Temperature Inversions for the...

99

Inverse Parametric Optimization with an Application to Hybrid ...  

E-Print Network (OSTI)

Jul 30, 2013 ... Abstract: We present a number of results on inverse parametric optimization and its application to hybrid system control. We show that any...

Andreas B. Hempel

2013-07-30T23:59:59.000Z

100

Supersymmetric inversion of effective-range expansions  

E-Print Network (OSTI)

A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

Bikashkali Midya; Jrmie Evrard; Sylvain Abramowicz; O. L. Ramrez Surez; Jean-Marc Sparenberg

2015-01-16T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

Zeros in (inverse) bremsstrahlung matrix elements  

Science Journals Connector (OSTI)

We discuss the possibility of zeros in the nonrelativistic radiative continuum-continuum matrix element for electron-atom (inverse) bremsstrahlung. As demonstrated earlier for upward transitions from bound states, the occurrence of different signs for the free-free matrix element in limiting cases, plus the requirement of continuity, implies the existence of zeros. Using knowledge of the sign of the dipole matrix element in the soft- and hard-photon limits with one continuum electron energy held fixed, we show that zeros can occur in the s-p matrix element. We discuss the connection of our results to elastic scattering and to Ramsauer-Townsend minima. We consider the observability of zeros in this (s-p) matrix element manifested as minima in the cross sections.

C. David Shaffer; R. H. Pratt; Sung Dahm Oh

1998-01-01T23:59:59.000Z

102

Supersymmetric inversion of effective-range expansions  

E-Print Network (OSTI)

A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Third, the interaction potential is constructed with supersymmetric transformations of the radial Schr\\"odinger equation. As an illustration, the method is applied to the experimental phase shifts of the neutron-proton elastic scattering in the $^1S_0$ and $^1D_2$ channels on the $[0-350]$ MeV laboratory energy interval.

Midya, Bikashkali; Abramowicz, Sylvain; Surez, O L Ramrez; Sparenberg, Jean-Marc

2015-01-01T23:59:59.000Z

103

Estimation of Parigi reservoir characteristics using seismic attributes, AVO analysis and AVO inversion, and seismic inversion  

SciTech Connect

In the carbonate reservoir, the gas was trapped in the cavity of the formation. First of all, to identify the cavity as the distribution of the cavity or porous zone will be done by reflection strength and instantaneous frequency from the seismic attribute analysis. After the zone has been identified, the existing gas and the value of porosity can be estimated using AVO analysis and AVO inversion technique. This idea was applied to the carbonate reservoir within the Parigi Formation in the Northwest Java Basin (Indonesia) by Santoso et al. The result shows a clear zone of high reflection strength and low instantaneous frequency in the carbonate build up. The porosity estimated by AVO inversion gives a value of the porosity about 38% and the Poisson`s ratio around 0.22-0.26. This paper is continuation of Santoso et al. study. It is done by the delineation of the porosity which can be displayed by the acoustic impedance section as a result of seismic inversion process. The delineation of the reservoir characters to the horizontal direction as previous study gives around a similar value as shown by acoustic impedance value. When these results were compared to the borehole data in the location, they are very close. Therefore this idea has given a satisfactory result in estimating porosity from seismic data and delineating the carbonate reservoir away from the borehole.

Santoso, D.; Hendrajaya, L.; Watkins, J.S. [and others

1995-12-31T23:59:59.000Z

104

JORDAN GEOMETRIES AN APPROACH VIA INVERSIONS WOLFGANG BERTRAM  

E-Print Network (OSTI)

JORDAN GEOMETRIES ­ AN APPROACH VIA INVERSIONS WOLFGANG BERTRAM Abstract. Jordan geometries]) as spaces equipped with point reflections Sx fixing x, and therefore the theories of Jordan geometries action of torsors and of symmetric spaces is introduced. Jordan geometries give rise both to inversive

Paris-Sud XI, Université de

105

Inversion of the Pieri formula for Macdonald polynomials  

E-Print Network (OSTI)

Inversion of the Pieri formula for Macdonald polynomials Michel Lassalle Centre National de la://www.mat.univie.ac.at/~schlosse February 8, 2004 Abstract We give the explicit analytic development of Macdonald polynomials in terms and phrases: Macdonald polynomials, Pieri formula, matrix inversion, symmetric functions, Schur functions

Schlosser, Michael

106

Program Inversion for Tail Recursive Functions Naoki Nishida1  

E-Print Network (OSTI)

inputs, say vi1 , . . . , vim , the partial inverse computation computes the remaining inputs vj1 , . . . , vjk such that f(v1, . . . , vn) = v with {vi1 , . . . , vim }{vj1 , . . . , vjk } = {v1, . . . , vn} and {vi1 , . . . , vim } {vj1 , . . . , vjk } = . Two approaches to inverse computation are distinguished

Vidal, Germán

107

INVERSE PROBLEM ON THE LINE WITHOUT PHASE INFORMATION  

E-Print Network (OSTI)

in neutron and x­ray scattering studies of surface and interface structures, see e.g. [FR91,FY96,ZC95 of a potential with support in a right half­line is studied in terms of the scattering data consisting Keywords: Phase retrieval, Inverse scattering, 1­D Schr¨odinger equation Short title: Inverse problem

108

INVERSE PROBLEM ON THE LINE WITHOUT PHASE INFORMATION  

E-Print Network (OSTI)

applications in neutron and x-ray scattering studies of surface and interface structures, see e.g. [FR91,FY96 of a potential with support in a right half-line is studied in terms of the scattering data consisting Keywords: Phase retrieval, Inverse scattering, 1-D Schrodinger equation Short title: Inverse problem

109

A computationally feasible approximate resolution matrix for seismic inverse problems  

Science Journals Connector (OSTI)

......traveltimes, 65th Ann. Int. Mtg, Soc. Expl. Geophys...mest in the inversion process: (1) where R E W...subsurface, the inversion process cannot generally return...I then applied this process to two field-data reflectivity...traveltimes, 65th Ann. Int. Mtg, Soc. Expl. Geophys......

Susan E. Minkoff

1996-08-01T23:59:59.000Z

110

Optical Aharonov-Bohm effect: an inverse hyperbolic problems approach  

E-Print Network (OSTI)

We describe the general setting for the optical Aharonov-Bohm effect based on the inverse problem of the identification of the coefficients of the governing hyperbolic equation by the boundary measurements. We interpret the inverse problem result as a possibility in principle to detect the optical Aharonov-Bohm effect by the boundary measurements.

Gregory Eskin

2007-10-18T23:59:59.000Z

111

Finite Element Discretization Strategies for the Inverse Electrocardiographic (ECG) Problem  

E-Print Network (OSTI)

Finite Element Discretization Strategies for the Inverse Electrocardiographic (ECG) Problem Dafang electrocardiographic (ECG) problems re- quires the ability to both quantify and minimize approxi- mation errors specifically for the inverse ECG prob- lem. By quantitatively analyzing the connection between the ill

Utah, University of

112

Inversion of synthetic aperture radar interferograms for sources of  

Open Energy Info (EERE)

Inversion of synthetic aperture radar interferograms for sources of Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field Authors Bill Foxall and D. W. Vasco Published Journal Journal of Volcanology and Geothermal Research, 2008 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field Citation Bill Foxall,D. W. Vasco. 2008. Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie

113

Chapter 7 - Prestack Seismic Inversion and Seismic Attribute Analysis  

Science Journals Connector (OSTI)

Abstract Based on seismic, logging, and geological data, the seismic inversion technique can reveal the spatial characteristics (including reservoir thickness, structural characteristics, extending direction, extending range, pinch-out location, and others) of the target layers, such as reservoirs or coal seams. By combining a large area of the continuous distribution of seismic data with high-resolution well logging data, this technique transforms conventional seismic data into a high-resolution well data volume, enabling us to use the acoustic characteristics of rock formations to ascertain lithological interfaces. So we can extrapolate the borehole lithological and physical properties and hydrocarbon features from points to lines and lines to faces, and predict lateral reservoir variations and reservoir properties from known reservoir characteristics. Seismic inversion technology has been one of the core technologies for reservoir characteristics and reservoir prediction. Seismic attribute analysis is the premise of fine reservoir characteristics and fine 3D seismic interpretation, which help us uncover information about lithology and reservoir heterogeneity from seismic data. The work of seismic attribute analysis includes (1) extracting various seismic attributes from poststack seismic data; (2) conducting crossplot analysis of seismic attributes and reservoir properties (including geology, well logging, and petrophysical parameters) to establish relationships between seismic attributes and reservoir parameters; and (3) dynamically interpreting 3D seismic, geological, and logging data, which helps us to study the relationships between seismic reflection characteristics and sedimentary and tectonic information, predict the reservoir spatial distribution, and reveal how fracture systems influence the reservoir distribution. Development of the seismic inversion technique in reservoir characterization can be summarized in four stages: the first stage was in the 1960s. In this stage, the exploration targets were structural reservoirs, and seismic inversion techniques were not used. The second stage was in the 1970s. The exploration targets were structural and lithological reservoirs, and no well-constraint seismic inversion techniques were used. The third stage was in the 1980s, when many new techniques were developed. Seismic inversion techniques, including the prestack amplitude versus offset (AVO) technique and wave impedance inversion technique, developed rapidly and greatly improved our understanding of seismic reservoir characterization. The fourth stage is the stage of reservoir characterization and dynamic monitoring in the 1990s. Seismic inversion techniques are used for reservoir dynamic characterization, such as 3D AVO inversion, well-seismic joint inversion, reservoir characteristics curve reconstruction, multiparameter reservoir inversion, and the elastic wave impedance inversion techniques. Prestack seismic data contain richer information than do poststack data, so prestack seismic inversion and attribute analysis are increasingly important in oil and gas exploration.

Ming Li; Yimin Zhao

2014-01-01T23:59:59.000Z

114

Linearized Functional Minimization for Inverse Modeling  

SciTech Connect

Heterogeneous aquifers typically consist of multiple lithofacies, whose spatial arrangement significantly affects flow and transport. The estimation of these lithofacies is complicated by the scarcity of data and by the lack of a clear correlation between identifiable geologic indicators and attributes. We introduce a new inverse-modeling approach to estimate both the spatial extent of hydrofacies and their properties from sparse measurements of hydraulic conductivity and hydraulic head. Our approach is to minimize a functional defined on the vectors of values of hydraulic conductivity and hydraulic head fields defined on regular grids at a user-determined resolution. This functional is constructed to (i) enforce the relationship between conductivity and heads provided by the groundwater flow equation, (ii) penalize deviations of the reconstructed fields from measurements where they are available, and (iii) penalize reconstructed fields that are not piece-wise smooth. We develop an iterative solver for this functional that exploits a local linearization of the mapping from conductivity to head. This approach provides a computationally efficient algorithm that rapidly converges to a solution. A series of numerical experiments demonstrates the robustness of our approach.

Wohlberg, Brendt [Los Alamos National Laboratory; Tartakovsky, Daniel M. [University of California, San Diego; Dentz, Marco [Institute of Environmental Assessment and Water Research, Barcelona, Spain

2012-06-21T23:59:59.000Z

115

The relativistic inverse stellar structure problem  

SciTech Connect

The observable macroscopic properties of relativistic stars (whose equations of state are known) can be predicted by solving the stellar structure equations that follow from Einsteins equation. For neutron stars, however, our knowledge of the equation of state is poor, so the direct stellar structure problem can not be solved without modeling the highest density part of the equation of state in some way. This talk will describe recent work on developing a model independent approach to determining the high-density neutron-star equation of state by solving an inverse stellar structure problem. This method uses the fact that Einsteins equation provides a deterministic relationship between the equation of state and the macroscopic observables of the stars which are composed of that material. This talk illustrates how this method will be able to determine the high-density part of the neutron-star equation of state with few percent accuracy when high quality measurements of the masses and radii of just two or three neutron stars become available. This talk will also show that this method can be used with measurements of other macroscopic observables, like the masses and tidal deformabilities, which can (in principle) be measured by gravitational wave observations of binary neutron-star mergers.

Lindblom, Lee [Theoretical Astrophysics, California Institute of Technology, Pasadena, CA 91125 (United States)

2014-01-14T23:59:59.000Z

116

Conceptual aircraft dynamics from inverse aircraft modeling  

E-Print Network (OSTI)

This thesis presents a method of construe' ting a nonlinear dynamics model of a theoretical aircraft from the nonlinear batch simulation of an existing aircrew This method provides control law designers with a method of fabricating nonlinear models...

Ziegler, Gregory E

1999-01-01T23:59:59.000Z

117

Joint inversion of receiver function and ambient noise based on Bayesian theory  

E-Print Network (OSTI)

In this study, we present a method for the joint inversion of receiver function and ambient noise based on Bayesian inverse theory (Tarantola, 1987, 2005). The nonlinear inversion method of the complex spectrum ratio of ...

van der Hilst, Robert D.

118

Inverse Freezing in Mean-Field Models of Fragile Glasses  

E-Print Network (OSTI)

A disordered spin model suitable for studying inverse freezing in fragile glass-forming systems is introduced. The model is a microscopic realization of the ``random-first order'' scenario in which the glass transition can be either continuous or discontinuous in thermodynamic sense. The phase diagram exhibits a first-order transition line between two fluid phases terminating at a critical point. When the interacting degrees of freedom are entropically favoured an inverse static glass transition and a double inverse dynamic freezing appear.

Mauro Sellitto

2006-03-14T23:59:59.000Z

119

Inverse freezing in mean-field models of fragile glasses  

Science Journals Connector (OSTI)

A disordered spin model suitable for studying inverse freezing in fragile glass-forming systems is introduced. The model is a microscopic realization of the random first-order scenario in which the glass transition can be either continuous or discontinuous in thermodynamic sense. The phase diagram exhibits a first-order transition line between two fluid phases terminating at a critical point. When the interacting degrees of freedom are entropically favored, an inverse static glass transition and a double inverse dynamic freezing appear.

Mauro Sellitto

2006-05-30T23:59:59.000Z

120

Simulations of Trade Wind Cumuli under a Strong Inversion  

Science Journals Connector (OSTI)

The fifth intercomparison of the Global Water and Energy Experiment Cloud System Studies Working Group 1 is used as a vehicle for better understanding the dynamics of trade wind cumuli capped by a strong inversion. The basis of the ...

Bjorn Stevens; Andrew S. Ackerman; Bruce A. Albrecht; Andrew R. Brown; Andreas Chlond; Joan Cuxart; Peter G. Duynkerke; David C. Lewellen; Malcolm K. Macvean; Roel A. J. Neggers; Enrique Snchez; A. Pier Siebesma; David E. Stevens

2001-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

A Thermohaline Inverse Method for Estimating Diathermohaline Circulation and Mixing  

Science Journals Connector (OSTI)

The thermohaline inverse method (THIM) is presented that provides estimates of the diathermohaline streamfunction , the downgradient along-isopycnal diffusion coefficient K, and the isotropic downgradient turbulent diffusion coefficient D of small-...

Sjoerd Groeskamp; Jan D. Zika; Bernadette M. Sloyan; Trevor J. McDougall; Peter C. McIntosh

2014-10-01T23:59:59.000Z

122

Strategies for Spectral Profile Inversion using Artificial Neural Networks  

E-Print Network (OSTI)

This paper explores three different strategies for the inversion of spectral lines (and their Stokes profiles) using artificial neural networks. It is shown that a straightforward approach in which the network is trained with synthetic spectra from a simplified model leads to considerable errors in the inversion of real observations. This problem can be overcome in at least two different ways that are studied here in detail. The first method makes use of an additional pre-processing auto-associative neural network to project the observed profile into the theoretical model subspace. The second method considers a suitable regularization of the neural network used for the inversion. These new techniques are shown to be robust and reliable when applied to the inversion of both synthetic and observed data, with errors typically below $\\sim$100 G.

H. Socas-Navarro

2004-10-23T23:59:59.000Z

123

Three-dimensional massively parallel electromagnetic inversionI. Theory  

Science Journals Connector (OSTI)

......waste-site evaluations, mineral, oil, and gas exploration, and more recently reservoir...parameter Because of the computational cost of using an exact forward solution...will also serve as an accuracy benchmark on approxi- mate inverse methods......

G. A. Newman; D. L. Alumbaugh

1997-02-01T23:59:59.000Z

124

Tests of the Gravitational Inverse-Square Law  

E-Print Network (OSTI)

We review recent experimental tests of the gravitational inverse-square law and the wide variety of theoretical considerations that suggest the law may break down in experimentally accessible regions.

E. G. Adelberger; B. R. Heckel; A. E. Nelson

2003-07-22T23:59:59.000Z

125

Modeling and inversion of self-potential data  

E-Print Network (OSTI)

This dissertation presents data processing techniques relevant to the acquisition, modeling, and inversion of self-potential data. The primary goal is to facilitate the interpretation of self-potentials in terms of the ...

Minsley, Burke J

2007-01-01T23:59:59.000Z

126

Inverse scattering by a continuation method with initial guesses from ...  

E-Print Network (OSTI)

Sep 5, 2007 ... b Department of Mathematics and Statistics, Louisiana Tech University, ... The present paper focuses on the inverse scattering problem. ..... Example 1: (a) the true scatterer; (b) the initial guess; and (c) the final reconstruction.

2007-10-11T23:59:59.000Z

127

Pivot-Free Block Matrix Inversion Stephen M. Watt  

E-Print Network (OSTI)

Pivot-Free Block Matrix Inversion Stephen M. Watt Ontario Research Centre for Computer Algebra Department of Computer Science University of Western Ontario London Ontario, CANADA N6A 5B7 watt

Watt, Stephen M.

128

Inverse transport calculations in optical imaging with subspace optimization algorithms  

E-Print Network (OSTI)

Kui Ren April 16, 2014 Abstract Inverse boundary value problems for the radiative transport equation transport problems, radiative transport equation, subspace optimization method, singular value decomposition physical parameters in the radiative transport equation from partial information on the solution

Ren, Kui

129

Forward and inverse metabolic engineering strategies for improving polyhydroxybyrate production  

E-Print Network (OSTI)

Forward metabolic engineering (FME) is a rational approach to cellular engineering, relying on an understanding of the entire metabolic network to direct perturbations for phenotype improvement. Conversely, inverse metabolic ...

Tyo, Keith E. J

2008-01-01T23:59:59.000Z

130

The Inverse Ocean Modeling System. Part I: Implementation  

Science Journals Connector (OSTI)

The Inverse Ocean Modeling (IOM) system constructs and runs weak-constraint, four-dimensional variational data assimilation (W4DVAR) for any dynamical model and any observing array. The dynamics and the observing algorithms may be nonlinear but ...

A. F. Bennett; B. S. Chua; B. L. Pflaum; M. Erwig; Z. Fu; R. D. Loft; J. C. Muccino

2008-09-01T23:59:59.000Z

131

Electromagnetic Inverse Problems Involving Distributions of Dielectric Mechanisms and Parameters  

E-Print Network (OSTI)

Electromagnetic Inverse Problems Involving Distributions of Dielectric Mechanisms and Parameters H University, Raleigh, NC 27695-8205 August 17, 2005 Abstract We consider electromagnetic interrogation, uniform, log-normal, and log-Bi-Gaussian distributions. Keywords: Electromagnetic interrogation

132

On the structure of inversive pseudorandom number generators  

Science Journals Connector (OSTI)

We analyze the lattice structure and linear complexity of a new inversive pseudorandom number generator recently introduced by Niederreiter and Rivat. In particular, we introduce a new lattice test which is much stronger than its predecessors and prove ...

Harald Niederreiter; Arne Winterhof

2007-12-01T23:59:59.000Z

133

Computational Inversion of Electron Tomography Images -Gradient Flows  

E-Print Network (OSTI)

Computational Inversion of Electron Tomography Images Using L2 -Gradient Flows Guoliang Xu 1) Ming Computing Institute of Computational Mathematics, Academy of Mathematics and System Sciences, Chinese Academy of Sciences, Beijing 100190, China 2) Department of Computer Sciences and Institute

Texas at Austin, University of

134

Advances in Inverse Transport Methods and Applications to Neutron Tomography  

E-Print Network (OSTI)

The purpose of the inverse-transport problems that we address is to reconstruct the material distribution inside an unknown object undergoing a nondestructive evaluation. We assume that the object is subjected to incident beams of photons...

Wu, Zeyun

2011-02-22T23:59:59.000Z

135

A computational inverse diffraction grating problem  

E-Print Network (OSTI)

Mar 2, 2012 ... od and a variational (finite element) method have been developed in [3,4]. ... problems in diffractive optics, which is to design a grating structure that .... where the free-space quasiperiodic Green function is given ex- plicitly as.

2012-02-29T23:59:59.000Z

136

Maps and inverse maps in open quantum dynamics  

SciTech Connect

Two kinds of maps that describe evolution of states of a subsystem coming from dynamics described by a unitary operator for a larger system, maps defined for fixed mean values and maps defined for fixed correlations, are found to be quite different for the same unitary dynamics in the same situation in the larger system. An affine form is used for both kinds of maps to find necessary and sufficient conditions for inverse maps. All the different maps with the same homogeneous part in their affine forms have inverses if and only if the homogeneous part does. Some of these maps are completely positive; others are not, but the homogeneous part is always completely positive. The conditions for an inverse are the same for maps that are not completely positive as for maps that are. For maps defined for fixed mean values, the homogeneous part depends only on the unitary operator for the dynamics of the larger system, not on any state or mean values or correlations. Necessary and sufficient conditions for an inverse are stated several different ways: in terms of the maps of matrices, basis matrices, density matrices, or mean values. The inverse maps are generally not tied to the dynamics the way the maps forward are. A trace-preserving completely positive map that is unital cannot have an inverse that is obtained from any dynamics described by any unitary operator for any states of a larger system.

Jordan, Thomas F., E-mail: tjordan@d.umn.ed [Physics Department, University of Minnesota, Duluth, MN 55812 (United States)

2010-10-15T23:59:59.000Z

137

Maps and inverse maps in open quantum dynamics  

E-Print Network (OSTI)

Two kinds of maps that describe evolution of states of a subsystem coming from dynamics described by a unitary operator for a larger system, maps defined for fixed mean values and maps defined for fixed correlations, are found to be quite different for the same unitary dynamics in the same situation in the larger system. An affine form is used for both kinds of maps to find necessary and sufficient conditions for inverse maps. All the different maps with the same homogeneous part in their affine forms have inverses if and only if the homogeneous part does. Some of these maps are completely positive; others are not, but the homogeneous part is always completely positive. The conditions for an inverse are the same for maps that are not completely positive as for maps that are. For maps defined for fixed mean values, the homogeneous part depends only on the unitary operator for the dynamics of the larger system, not on any state or mean values or correlations. Necessary and sufficient conditions for an inverse are stated several different ways: in terms of the maps of matrices, basis matrices, density matrices, or mean values. The inverse maps are generally not tied to the dynamics the way the maps forward are. A trace-preserving completely positive map that is unital can not have an inverse that is obtained from any dynamics described by any unitary operator for any states of a larger system.

Thomas F. Jordan

2008-07-08T23:59:59.000Z

138

A Target-Oriented Magnetotelluric Inversion Approach For Characterizing The  

Open Energy Info (EERE)

Target-Oriented Magnetotelluric Inversion Approach For Characterizing The Target-Oriented Magnetotelluric Inversion Approach For Characterizing The Low Enthalpy Gross Schonebeck Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Target-Oriented Magnetotelluric Inversion Approach For Characterizing The Low Enthalpy Gross Schonebeck Geothermal Reservoir Details Activities (0) Areas (0) Regions (0) Abstract: Electrical conductivity is a key parameter for the exploration and characterization of geothermal reservoirs as hot mineralized formation water of active geothermal areas usually exhibits significantly higher conductivity than the surrounding host rock. Here we present results of a magnetotelluric (MT) exploration experiment carried out in the vicinity of the Gross Schonebeck geothermal test site in Northern Germany, where a

139

Inverse melting in a system with positive heats of formation  

SciTech Connect

Supersaturated body-centered-cubic Fe-W solid solutions with positive heats of formation were prepared by cosputtering and mechanical alloying over a wide concentration range. Upon annealing, these solid solutions were observed to undergo amorphization in the range of 20{endash}37 at.{percent} W. For Fe{sub 70}W{sub 30} and Fe{sub 67}W{sub 33} the transformation was polymorphous, indicating an inverse melting behavior. A thermodynamic analysis of the Fe-W system, which was carried out using the calculation-of-phase-diagrams method, supported that inverse melting is energetically possible in the Fe-W system. The results demonstrate that inverse melting can also occur in systems with positive heats of amorphous phase formation. {copyright} {ital 1997} {ital The American Physical Society}

Bai, H.Y.; Michaelsen, C.; Bormann, R. [Institute for Materials Research, GKSS-Research Center, Max-Planck-Strasse, D-21502 Geesthacht (Germany)] [Institute for Materials Research, GKSS-Research Center, Max-Planck-Strasse, D-21502 Geesthacht (Germany)

1997-11-01T23:59:59.000Z

140

On the computational complexity of sequence design problems  

SciTech Connect

Inverse protein folding concerns the identification of an amino acid sequence that folds to a given structure. Sequence design problems attempt to avoid the apparant difficulty of inverse protein folding by defining an energy that can be minimized to find protein-like sequences. We evaluate the practical relevance of two sequence design problems by analyzing their computational complexity. We show that the canonical method of sequence design is intractable and describe approximation algorithms for this problem. We also describe an efficient algorithm that exactly solves the grand canonical method. Our analysis shows how sequence design problems can fail to reduce the difficulty of the inverse protein folding problem and highlights the need to analyze these problems to evaluate their practical relevance. 10 refs., 8 figs.

Hart, W.E. [Sandia National Labs., Albuquerque, NM (United States)

1997-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

On the computational complexity of sequence design problems  

SciTech Connect

Inverse protein folding concerns the identification of an amino acid sequence that folds to a given structure. Sequence design problems attempt to avoid the apparent difficulty of inverse protein folding by defining an energy that can be minimized to find protein-like sequences. The authors evaluate the practical relevance of two sequence design problems by analyzing their computation complexity. They show that the canonical method of sequence design is intractable, and describe approximation algorithms for this problem. The authors also describe an efficient algorithm that exactly solves the grand canonical method. The analysis shows how sequence design problems can fail to reduce the difficulty of the inverse protein folding problem, and highlights the need to analyze these problems to evaluate their practical relevance.

Hart, W.E. [Sandia National Labs., Albuquerque, NM (United States). Algorithms and Discrete Mathematics Dept.

1996-12-31T23:59:59.000Z

142

Inversion kinetics for Kr-Xe bilayers on palladium  

Science Journals Connector (OSTI)

The thermally activated inversion of Kr-Xe bilayers on Pd is studied with the use of photoemission and photon-excited Auger spectroscopy. Bilayers formed by the deposit of a monolayer or less of Xe on top of a monolayer of Kr on Pd at 49 K are shown to invert when the temperature is raised, with Xe coming in direct contact with the substrate. For a Pd(111) substrate the activation energy of this inversion process is determined: Ea=0.120.03 eV.

G. Kaindl; T.-C. Chiang; D. E. Eastman

1982-06-15T23:59:59.000Z

143

Observation of the Inverse Cotton-Mouton Effect  

E-Print Network (OSTI)

We report the investigation of the Inverse Cotton-Mouton Effect (ICME) i.e. the magnetization induced in a medium by light propagating in the presence of a transverse magnetic field. We present a detailed study of the ICME in a TGG crystal showing the dependence of the measured effect on the laser power density and polarization, and on the static external magnetic field. We finally derive a relation between the Cotton-Mouton and Inverse Cotton-Mouton effects which is experimentally confirmed.

Baranga, Andrei Ben-Amar; Fouch, Mathilde; Rizzo, Carlo; Rikken, G L J A

2010-01-01T23:59:59.000Z

144

Design for manufacturability Design verification  

E-Print Network (OSTI)

ITRS Design #12;Design · Design for manufacturability · Design verification #12;Design for Manufacturability · Architecture challenges · Logic and circuit challenges · Layout and physical design challenges · Expected to be the source of multiple DFM challenges · Invest in variability reduction or design

Patel, Chintan

145

an inverse boundary value problem for the stationary transport ...  

E-Print Network (OSTI)

inverse problem (IP) for the time-dependent transport equation (?t ? T)u = 0, where T ... Then the pairs (?a,0) and (?a,0) (i.e. k = k = 0) produce the same .... Note that Jf? is defined so that T1Jf? = 0, Jf?|?? = f?, therefore J is the solution...

146

INVERSION OF CONVERTED-WAVE SEISMIC DATA FOR RESERVOIR CHARACTERIZATION  

E-Print Network (OSTI)

Basin of northwest Colorado. The reservoir consists of lenticular fluvial sands, shales, and coals, the Thomsen anisotropy parameters are es- timated at the UMV Shale interval from a joint PP/PS traveltime inversion. An anisotropic AVO modeling study based on the elastic parameters extracted at the study well

147

Refactoring Composite to Visitor and Inverse Transformation in Java  

E-Print Network (OSTI)

Refactoring Composite to Visitor and Inverse Transformation in Java Akram Ajouli1 & Julien Cohen2 1, EMN) We describe how to use refactoring tools to transform a Java program conforming to the Composite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 CompositeVisitor Transformation Scheme 7 3.1 CompositeVisitor Transformation

Paris-Sud XI, Université de

148

Refactoring Composite to Visitor and Inverse Transformation in Java  

E-Print Network (OSTI)

Refactoring Composite to Visitor and Inverse Transformation in Java Akram Ajouli1 & Julien Cohen2 1, EMN) We describe how to use refactoring tools to transform a Java program conforming to the Composite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 CompositeVisitor Transformation Scheme 7 3.1 CompositeVisitor Transformation

Paris-Sud XI, Université de

149

A Bayesian Analysis of Regularised Source Inversions in Gravitational Lensing  

SciTech Connect

Strong gravitational lens systems with extended sources are of special interest because they provide additional constraints on the models of the lens systems. To use a gravitational lens system for measuring the Hubble constant, one would need to determine the lens potential and the source intensity distribution simultaneously. A linear inversion method to reconstruct a pixellated source distribution of a given lens potential model was introduced by Warren and Dye. In the inversion process, a regularization on the source intensity is often needed to ensure a successful inversion with a faithful resulting source. In this paper, we use Bayesian analysis to determine the optimal regularization constant (strength of regularization) of a given form of regularization and to objectively choose the optimal form of regularization given a selection of regularizations. We consider and compare quantitatively three different forms of regularization previously described in the literature for source inversions in gravitational lensing: zeroth-order, gradient and curvature. We use simulated data with the exact lens potential to demonstrate the method. We find that the preferred form of regularization depends on the nature of the source distribution.

Suyu, Sherry H.; /Caltech /KIPAC, Menlo Park; Marshall, P.J.; /KIPAC, Menlo Park; Hobson, M.P.; /Cambridge U., Inst. of Astron.; Blandford, R.D.; /Caltech /KIPAC, Menlo

2006-01-25T23:59:59.000Z

150

Fast Vectorless Power Grid Verification Using an Approximate Inverse Technique  

E-Print Network (OSTI)

Fast Vectorless Power Grid Verification Using an Approximate Inverse Technique Nahi H. Abdul Ghani Department of ECE University of Toronto Toronto, Ontario, Canada f.najm@utoronto.ca ABSTRACT Power grid Aids General Terms Performance, Algorithms, Verification Keywords Power grid, voltage drop, approximate

Najm, Farid N.

151

HYBRID INVERSE PROBLEMS AND REDUNDANT SYSTEMS OF PARTIAL DIFFERENTIAL EQUATIONS  

E-Print Network (OSTI)

. The theory is applied to the case of power density measurements, which are internal functionals of the form from knowledge of said internal functionals. For recent books and reviews on hybrid inverse problems conditions. General theories of elliptic systems then allow us to construct a parametrix for such systems

Bal, Guillaume

152

An inverse random source problem for the Helmholtz equation  

E-Print Network (OSTI)

Jun 10, 2013 ... see e.g., Devaney, Marengo, and Li [13], Eller and Valdivia [15], and the references cited therein. ... See also Gelfand and Levitan [16] for a related inverse Sturm. Liouville ...... MR2443008 (2010b:35508). [7] Guillaume Bal...

Gang Bao; Shui-Nee Chow; Peijun Li; Haomin Zhou

2013-10-25T23:59:59.000Z

153

Inverse Scattering and Acousto-Optic Imaging Guillaume Bal  

E-Print Network (OSTI)

Inverse Scattering and Acousto-Optic Imaging Guillaume Bal Department of Applied Physics the optical properties of a highly-scattering medium from incoherent acousto-optic measurements. The method of interior control of boundary measurements by an external wave field. 1 #12;The acousto-optic effect

Bal, Guillaume

154

Nonlinear Adaptive Dynamic Inversion Applied to a Generic Hypersonic Vehicle  

E-Print Network (OSTI)

Nonlinear Adaptive Dynamic Inversion Applied to a Generic Hypersonic Vehicle Elizabeth Rollins Conclusions Extensions 3 / 50 #12;Motivation Control of Hypersonic Vehicles · Wide range of flight conditions in hypersonic flight · Three main causes of inlet unstarts: 1 A flow to the inlet that is slower than

Valasek, John

155

Nonlinear Adaptive Dynamic Inversion Applied to a Generic Hypersonic Vehicle  

E-Print Network (OSTI)

Nonlinear Adaptive Dynamic Inversion Applied to a Generic Hypersonic Vehicle Elizabeth Rollins of hypersonic vehicles is challenging because of the wide range of oper- ating conditions encountered and certain aspects unique to high speed flight. A particular safety concern in hypersonic flight is the risk

Valasek, John

156

Ocean effect correction in global inversion of geomagnetic  

E-Print Network (OSTI)

data: dcorr = dobs ­ ( F(mi) ­ F'(mi) ) ·invert corrected data: mi+1 = F'-1 (dcorr ) ·repeat until |mi+1 - mi | mi+1 ­ mi = F'-1 ( dobs ­ F(mi) ) ·then if mi+1 ­ mi 0, also mi F-1 (dobs ) Inverse problem with an approximate forward operator #12

Cerveny, Vlastislav

157

Inversion of Scattered Waves for Material Properties in Fractured Rock  

SciTech Connect

The authors apply a recently developed low-frequency, non-linear inversion method which includes near and far field terms to a crosshole data set to determine the bulk and shear modulus, as well as the density for a fractured zone in a granitic rock mass. The method uses the scattered elastic wavefield which is extracted from the recorded data before the inversion is performed. The inversion result is appraised by investigating the resolution and standard deviation of the model estimates. The sensitivity of the three parameters to different features of the medium is revealed. While the bulk modulus appears to be sensitive to voids and welded contacts, the density is mostly affected by fractured zones. The shear modulus is least constrained due to the absence of S wave anisotropy information. It is shown that the three medium parameters are generally sensitive to other medium features than those determined by velocity inversions. Thus this method is viewed as a complimentary approach to travel time tomography which provides more insight into the material properties of inhomogeneous media.

Gritto, Roland; Korneev, Valeri A.; Johnson, Lane R.

1999-07-01T23:59:59.000Z

158

Inversion of borehole weak motion records observed in Istanbul (Turkey)  

Science Journals Connector (OSTI)

......sets, might be large. This indicates...the inversion of borehole weak and strong...2005 December, a drilling program consisting...the 140-m-deep borehole, based on the encountered...applicable also to borehole sites where other...velocities (with a large change of impedance......

S. Parolai; R. Wang; D. Bindi

2012-02-01T23:59:59.000Z

159

Sensitivity and inversion of borehole flexural dispersions for formation parameters  

Science Journals Connector (OSTI)

......any constraints for a Gaussian random process is given by Figure 1. Schematic diagram...waveforms. Nevertheless, the inversion process tolerates a 10 per cent uncertainty in...waves, presented at 66th Ann. Int. Mtg, Soc. Expl. Geophys., Denver, CO......

Bikash K. Sinha

1997-01-01T23:59:59.000Z

160

Inverse scattering for rotationally scanned optical coherence tomography  

E-Print Network (OSTI)

Inverse scattering for rotationally scanned optical coherence tomography Daniel L. Marks, Tyler S May 16, 2006; posted May 26, 2006 (Doc. ID 67358) Optical coherence tomography of luminal structures coherence tomography1,2 (OCT), is determined in large part by the degree to which the images provide

Bhargava, Rohit

Note: This page contains sample records for the topic "inverse design cid" 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

The Laplace Transform 1 Laplace transform and inverse transform  

E-Print Network (OSTI)

The Laplace Transform Name: 1 Laplace transform and inverse transform Definition. Let f(t) be a function defined for t 0. Then the integral L {f(t)} = 0 e-st f(t)dt is said to be the Laplace transform of f provided the integral converges. Fill in the following Laplace transforms. L {tn } = L {eat } = L

Yengulalp, Lynne

162

The Laplace Transform 1 Laplace transform and inverse transform  

E-Print Network (OSTI)

The Laplace Transform Name: 1 Laplace transform and inverse transform Definition. Let f be a function defined for t 0. Then the integral L {f(t)} = 0 e-st f(t)dt is said to be the Laplace transform of f provided the integral converges. Fill in the following Laplace transforms. L {tn } = n! sn+1 L

Yengulalp, Lynne

163

Variational Structure of Inverse Problems in Wave Propagation and Vibration  

E-Print Network (OSTI)

Variational Structure of Inverse Problems in Wave Propagation and Vibration James G. Berryman in wave propagation (traveltime tomography) and two examples in vibration (the plucked string and free.'' For vibrating systems, the apparently very complex behavior of an excited string, drumhead, or the Earth can

164

Time-lapse gravity inversion with an active time constraint  

Science Journals Connector (OSTI)

......volcanic activity and geothermal fields (e.g...potential (potential energy per unit mass...the computational cost of the inversion...funding from DOE (Geothermal Technology Advancement...the CO2 plume. Energy Proc. (2011...ground water flow in geothermal fields. J. geophys......

M. Karaoulis; A. Revil; B. Minsley; M. Todesco; J. Zhang; D.D. Werkema

2014-01-01T23:59:59.000Z

165

Time-lapse gravity inversion with an active time constraint  

Science Journals Connector (OSTI)

......J. Zhang 1 D.D. Werkema 5 1 Department of Geophysics, Colorado School of Mines, Golden, CO 80401, USA. E-mail: arevil...We applied the time-lapse inversion algorithm to a water-flood and secondary oil recovery experiment in which water was injected......

M. Karaoulis; A. Revil; B. Minsley; M. Todesco; J. Zhang; D.D. Werkema

2014-01-01T23:59:59.000Z

166

Motion Without Correspondence from Tomographic Projections by Bayesian Inversion Theory  

E-Print Network (OSTI)

Computing 3D reconstructions from X-ray projections is al- ready possible in some medical applications by Bayesian formalism as we want to handle either sparsely collected or limited-angle data, which are beyondMotion Without Correspondence from Tomographic Projections by Bayesian Inversion Theory S. S

Brandt, Sami

167

Reverse Audio Engineering: Model-Based Inversion of Dynamic Range  

E-Print Network (OSTI)

1 Reverse Audio Engineering: Model-Based Inversion of Dynamic Range Compression Stanislaw Gorlow, Graduate Student Member, IEEE and Joshua D. Reiss, Member, IEEE Abstract--Reverse audio engineering so far, reverse audio engineering. I. INTRODUCTION SOUND or audio engineering is an established discipline

168

THE INVERSE OF A SEMI-INFINITE SYMMETRIC BANDED MATRIX  

E-Print Network (OSTI)

algorithm 3]. The eigen- values and eigen-vectors for the nite symmetric tridiagonal case were obtainedTHE INVERSE OF A SEMI-INFINITE SYMMETRIC BANDED MATRIX D. A. LAVISy , B. W. SOUTHERNz and I. F a method for obtaining an analytic form for a class of sym- metric semi-in nite banded matrices, which are

Lavis, David

169

MFR PAPER 1033 Research determin es fatty aCid  

E-Print Network (OSTI)

~1 Preparation of Esters \\leth) I e\\ler lIere preparuJ u\\lng the mClhod :r, "ere \\cparated an d Idenlilied u\\lng , Zook E J Powell B Hackley J Emerson J Brooker. and G M Knobl

170

Mesozoic tectonic inversion in the Neuquen Basin of west-central Argentina  

E-Print Network (OSTI)

Mesozoic tectonic inversion in the Neuquen Basin of west-central Argentina produced two main fault systems: (1) deep faults that affected basement and syn-rift strata where preexisting faults were selectively reactivated during inversion based...

Grimaldi Castro, Gabriel Orlando

2007-04-25T23:59:59.000Z

171

Time-lapse Joint Inversion of Geophysical Data and its Applications...  

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

Objectives of the project * Forward modeling geophysical response with fluid flowheat modeling * Joint inversion (stochasticdeterministic) for ground water flow imaging *...

172

DIRECT SOLUTION OF THE INVERSE STOCHASTIC PROBLEM THROUGH ELEMENTARY MARKOV STATE DISAGGREGATION  

E-Print Network (OSTI)

matrix, inverse eigenvalue problem, state disaggregation. AMS subject classifications. 65F18, 15B51, 15A

Boyer, Edmond

173

Identification of Friction Parameters from the Inverse Analysis of a Direct Extrusion Test  

SciTech Connect

This work proposes to use a special upsetting test and an optimal direct extrusion one performed to identify the constitutive equation of the material behavior and the friction coefficients directly from the load-stroke curves. The proposed friction test has the advantage to permit to take into account contact phenomena corresponding to new specimen surfaces created during a real bulk cold forming process. A lot of numerical simulations are made with the commercial software FORGE2 in order to study the influence of some design and process parameters. Different friction laws will be identified starting from the classical Coulomb and Tresca ones. All the parameter identifications are made using the Inverse Analysis principle.

Adinel, Gavrus; Thien, Pham Duc [LGCGM Laboratory, EA 3913, INSA de RENNES, UEB, CS70839, F-35708, Rennes-Cedex 7 (France); Henri, Francillette [SCR/CM, UMR 6226, INSA de RENNES, UEB, CS70839, F-35708, Rennes-Cedex 7 (France)

2011-01-17T23:59:59.000Z

174

EXPERIMENTAL STUDY OF AXISYMMETRIC INSTABILITY OF INVERSE DEE AND SQUARE TOKAMAK EQUILIBRIA  

E-Print Network (OSTI)

EXPERIMENTAL STUDY OF AXISYMMETRIC INSTABILITY OF INVERSE DEE AND SQUARE TOKAMAK EQUILIBRIA COO Study ofAxi.symmetric !nsta bUity of Inverse Dee and Square Tokamak Equilibria B. Lipschultz, S as a function of time in a tokamak with a 4-null poloidal d ivertor. Inverse dee equilibria are observed

Sprott, Julien Clinton

175

PARTICLE FILTER BASED MULTI-SENSOR FUSION FOR SOLVING LOW FREQUENCY ELECTROMAGNETIC NDE INVERSE PROBLEMS  

E-Print Network (OSTI)

PARTICLE FILTER BASED MULTI-SENSOR FUSION FOR SOLVING LOW FREQUENCY ELECTROMAGNETIC NDE INVERSE 48824 khantari,sdass@msu.edu, r.pradeep@ieee.org Abstract: Flaw profile characterization from NDE from multi-sensor data is considered. The NDE inverse problem is posed as a statistical inverse problem

Dass, Sarat C.

176

Design operators  

E-Print Network (OSTI)

Design operators is a thesis that investigates the nature and characteristics of the design process by examining the interaction of computation with architectural design. The effects of the introduction of these media in ...

Dritsas, Stylianos, 1978-

2004-01-01T23:59:59.000Z

177

A RANK FOR RIGHT CONGRUENCES ON INVERSE VICTORIA GOULD  

E-Print Network (OSTI)

A RANK FOR RIGHT CONGRUENCES ON INVERSE SEMIGROUPS VICTORIA GOULD Abstract. The sandwich rank, or S­rank, of a right congruence # on a semi­ group S is the Cantor­Bendixson rank of # in the lattice of right congruences RC of S with respect to a topology we call the finite type topology. If ev­ ery # # RC possesses S­rank

Gould, Victoria

178

Assessment of 2D resistivity structures using 1D inversions  

E-Print Network (OSTI)

) E. R. Hoskins (Head of Departsnent) May 1987 ABSTRACT Assessment of 2D Resistivity Structures Using 1D Inversion. (May 1987) Les Paul Beard, B. S. , East Texas State University Chairman of Advisory Committee: Dr. Frank Dale Morgan Resistivity... sections from Schlumberger soundings over and near normal fault. 4. 11 Inverted sections from Wenner soundings over and near nornral fault 4. 12 Schlumberger apparent resistivity contour for normal fault 4. 13 Wenner apparenl resistivity contour...

Beard, Les Paul

1987-01-01T23:59:59.000Z

179

Combined approach to the inverse protein folding problem. Final report  

SciTech Connect

The main scientific contribution of the project ''Combined approach to the inverse protein folding problem'' submitted in 1996 and funded by the Department of Energy in 1997 is the formulation and development of the idea of the multilink recognition method for identification of functional and structural homologues of newly discovered genes. This idea became very popular after they first announced it and used it in prediction of the threading targets for the CASP2 competition (Critical Assessment of Structure Prediction).

Ruben A. Abagyan

2000-06-01T23:59:59.000Z

180

THE INVERSE OF A SYMMETRIC BANDED TOEPLITZ MATRIX  

E-Print Network (OSTI)

matrices the inverse can be computed numerically using the Trench algorithm 3]. The eigen- values and eigen ::: 2n: (10) It is then not di cult to show that the eigen-values of T are the roots k, ;1 k , k = 1 A has elements As j with the property As j = a(s ; j). In the case of semi-in nite matrices (s j = 0 1

Lavis, David

Note: This page contains sample records for the topic "inverse design cid" 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

Inversion of reverberation data for rapid environmental assessment  

Science Journals Connector (OSTI)

From 1996 through 1998 SACLANTCEN participated in three rapid environmental assessment (REA) trials including experiments for bottom reverberation. Eight sites were visited: near Sicily in the Ionian Sea and near the Straits of Gibraltar. SUS charges were used as sources. The receivers were horizontal arrays (four apertures) spanning a wide frequency range. Sets of nearly monostatic recordings were analyzed in frequency bands from 80 to 4000 Hz. Previous results by the author [Berlin ASA meeting (1999)] showed polar plots of the beam time series superimposed on bathymetric charts revealing a number of scattering features not on the charts and that directional reverberation measurements are a useful remote?sensing tool. Another objective of the reverberation experiments was to quickly invert for estimates of scattering and geo?acoustic parameters that can be used in a wider variety of conditions. A manual inversion procedure was originally used to obtain at?sea results. New work uses a simulated annealing algorithm giving more formal inversion results. The horizontal array data are compared with the generic sonar model (GSM) predictions for both the manual and automated inverse schemes. A summary of the estimated geo?acoustic parameters using both methods is presented. [Work supported by ONR and DREA.

John R. Preston

2000-01-01T23:59:59.000Z

182

Harmonic inversion analysis of exceptional points in resonance spectra  

E-Print Network (OSTI)

The spectra of, e.g. open quantum systems are typically given as the superposition of resonances with a Lorentzian line shape, where each resonance is related to a simple pole in the complex energy domain. However, at exceptional points two or more resonances are degenerate and the resulting non-Lorentzian line shapes are related to higher order poles in the complex energy domain. In the Fourier-transform time domain an $n$-th order exceptional point is characterised by a non-exponentially decaying time signal given as the product of an exponential function and a polynomial of degree $n-1$. The complex positions and amplitudes of the non-degenerate resonances can be determined with high accuracy by application of the nonlinear harmonic inversion method to the real-valued resonance spectra. We extend the harmonic inversion method to include the analysis of exceptional points. The technique yields, in the energy domain, the amplitudes of the higher order poles contributing to the spectra, and, in the time domain, the coefficients of the polynomial characterising the non-exponential decay of the time signal. The extended harmonic inversion method is demonstrated on two examples, viz. the analysis of exceptional points in resonance spectra of the hydrogen atom in crossed magnetic and electric fields, and an exceptional point occurring in the dynamics of a single particle in a time-dependent harmonic trap.

Jacob Fuchs; Jrg Main; Holger Cartarius; Gnter Wunner

2014-02-17T23:59:59.000Z

183

Inverse transonic wing design using finite-volume methods in curvilinear coordinates  

E-Print Network (OSTI)

&U)i j k = (Ui~h j~b k+ Ui+Q j Q k + Ui Q j+Q k+ Ui h j h k)/4 etc. When extended to the other flux components and to averaging over cube surfaces in three dimensions, the numerical potential equation is of the form: @&f6'(PhU) + @[f6?(PhV) + Pf 6f...(PhW) = 0 Figure 2. Finite-Volume Cell Location To find the flux quantities phU, phV, and phW at the finite volume cell vertices (i. e. points a, b, c, and d for the two dimensional case), it is necessary to evaluate Equations (2) through (4...

Gally, Thomas Anthony

2012-06-07T23:59:59.000Z

184

Level-set, penalization and cartesian meshes: A paradigm for inverse problems and optimal design  

E-Print Network (OSTI)

l e i n f o Article history: Received 19 June 2008 Received in revised form 12 March 2009 Accepted prices are rising, the automotive and aeronautical industries, besides improvements on motors and masses of their engines, are required to look for aerodynamic ways to re- duce oil consumption, particularly through

Bruneau, Charles-Henri

185

Modelling approach for the Simulation-Based Preliminary Design of Power Transmissions  

E-Print Network (OSTI)

- 1/17 - Modelling approach for the Simulation-Based Preliminary Design of Power Transmissions. However, the Model Based Design of actuation systems lacks methodologies and expressive simulation models scaling laws and acausal modelling can be used as a design tool, exploiting inverse simulation

Boyer, Edmond

186

AIAA-2004-0502 A COMPARISON OF WIND TURBINE DESIGN LOADS IN DIFFERENT  

E-Print Network (OSTI)

in the gross wind environment and in the extreme response given wind conditions to establish nominal designAIAA-2004-0502 1 A COMPARISON OF WIND TURBINE DESIGN LOADS IN DIFFERENT ENVIRONMENTS USING INVERSE, Austin, TX 78712 ABSTRACT* The influence of turbulence conditions on the design loads for wind turbines

Manuel, Lance

187

Final Technical Report for "Applied Mathematics Research: Simulation Based Optimization and Application to Electromagnetic Inverse Problems"  

SciTech Connect

The focus of research was: Developing adaptive mesh for the solution of Maxwell's equations; Developing a parallel framework for time dependent inverse Maxwell's equations; Developing multilevel methods for optimization problems with inequal- ity constraints; A new inversion code for inverse Maxwell's equations in the 0th frequency (DC resistivity); A new inversion code for inverse Maxwell's equations in low frequency regime. Although the research concentrated on electromagnetic forward and in- verse problems the results of the research was applied to the problem of image registration.

Haber, Eldad

2014-03-17T23:59:59.000Z

188

Globally strongly convex cost functional for a coefficient inverse problem  

E-Print Network (OSTI)

A Carleman Weight Function (CWF) is used to construct a new cost functional for a Coefficient Inverse Problems for a hyperbolic PDE. Given a bounded set of an arbitrary size in a certain Sobolev space, one can choose the parameter of the CWF in such a way that the constructed cost functional will be strongly convex on that set. Next, convergence of the gradient method, which starts from an arbitrary point of that set, is established. Since restrictions on the size of that set are not imposed, then this is the global convergence.

Larisa Beilina; Michael V. Klibanov

2013-12-10T23:59:59.000Z

189

Nonlinear inverse perturbation in structural dynamics redesign of risers  

SciTech Connect

Marine risers, and offshore structures in general, may have undesirable natural frequencies and/or mode shapes. Structural redesign is mandatory in such cases. An Inverse Perturbation Redesign (IPR) method, which uses only the finite element analysis of the baseline system and was developed in previous work for general structures, is extended in this work to handle systems with geometric stiffness matrices like marine risers. The IPR method is currently applicable to undamped structural systems or systems with Rayleigh damping and is valid for large or small changes which are frequently required to change modal characteristics of offshore structures.

Bernitsas, M.M.; Hoff, C.J.; Kokara kis, J.E.

1985-06-01T23:59:59.000Z

190

Finite Rank Perturbations, Scattering Matrices and Inverse Problems  

E-Print Network (OSTI)

In this paper the scattering matrix of a scattering system consisting of two selfadjoint operators with finite dimensional resolvent difference is expressed in terms of a matrix Nevanlinna function. The problem is embedded into an extension theoretic framework and the theory of boundary triplets and associated Weyl functions for (in general nondensely defined) symmetric operators is applied. The representation results are extended to dissipative scattering systems and an explicit solution of an inverse scattering problem for the Lax-Phillips scattering matrix is presented.

Jussi Behrndt; Mark M. Malamud; Hagen Neidhardt

2009-02-20T23:59:59.000Z

191

Seismic Attenuation Inversion with t* Using tstarTomog.  

SciTech Connect

Seismic attenuation is defined as the loss of the seismic wave amplitude as the wave propagates excluding losses strictly due to geometric spreading. Information gleaned from seismic waves can be utilized to solve for the attenuation properties of the earth. One method of solving for earth attenuation properties is called t*. This report will start by introducing the basic theory behind t* and delve into inverse theory as it pertains to how the algorithm called tstarTomog inverts for attenuation properties using t* observations. This report also describes how to use the tstarTomog package to go from observed data to a 3-D model of attenuation structure in the earth.

Preston, Leiph

2014-09-01T23:59:59.000Z

192

Reconstruction of the Primordial Power Spectrum by Direct Inversion  

E-Print Network (OSTI)

We introduce a new method for reconstructing the primordial power spectrum, $P(k)$, directly from observations of the Cosmic Microwave Background (CMB). We employ Singular Value Decomposition (SVD) to invert the radiation perturbation transfer function. The degeneracy of the multipole $\\ell$ to wavenumber $k$ linear mapping is thus reduced. This enables the inversion to be carried out at each point along a Monte Carlo Markov Chain (MCMC) exploration of the combined $P(k)$ and cosmological parameter space. We present best--fit $P(k)$ obtained with this method along with other cosmological parameters.

Nicholson, Gavin; Paykari, Paniez

2009-01-01T23:59:59.000Z

193

Nonmetallic Conduction in Electron Inversion Layers at Low Temperatures  

Science Journals Connector (OSTI)

We have measured the resistance of electron inversion layers in Si metal-oxide-semiconductor field-effect transistors at low temperatures (?50 mK) and low electric fields (?0.1 V/m). At low values of R? we observe logarithmic dependences of the resistance on both temperature and applied electric field which scale only on R?. We observe a gradual transition to an exponential dependence at R??10 k?. The logarithmic dependences agree qualitatively but not quantitatively with current theories of localization.

D. J. Bishop, D. C. Tsui, and R. C. Dynes

1980-04-28T23:59:59.000Z

194

Negative Compressibility and Inverse Problem for Spinning Gas  

SciTech Connect

A spinning ideal gas in a cylinder with a smooth surface is shown to have unusual properties. First, under compression parallel to the axis of rotation, the spinning gas exhibits negative compressibility because energy can be stored in the rotation. Second, the spinning breaks the symmetry under which partial pressures of a mixture of gases simply add proportional to the constituent number densities. Thus, remarkably, in a mixture of spinning gases, an inverse problem can be formulated such that the gas constituents can be determined through external measurements only.

Vasily Geyko and Nathaniel J. Fisch

2013-01-11T23:59:59.000Z

195

Threshold Law for Attractive Inverse-Cube Interactions  

Science Journals Connector (OSTI)

For scattering by potentials with attractive inverse-cube (-C3/r3) tails, the threshold law for elastic collisions is presented. The expansion of the scattering phase shift contains all terms up to and including O(k2) and only relies on the value of the threshold quantum numbers remainder ??[0,1), which accounts for short-range deviations of the full potential from the pure -C3/r3 form. In contrast to previous approaches, the threshold law presented provides a connection to the regular solution at zero energy as well as to the position of a weakly bound s-wave state.

Tim-Oliver Mller

2013-06-24T23:59:59.000Z

196

Design Competitions  

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

National design competitions heighten awareness and market adoption of high-performance solid-state lighting products.

197

Modified Inverse First Order Reliability Method (I-FORM) for Predicting Extreme Sea States.  

SciTech Connect

Environmental contours describing extreme sea states are generated as the input for numerical or physical model simulation s as a part of the stand ard current practice for designing marine structure s to survive extreme sea states. Such environmental contours are characterized by combinations of significant wave height ( ) and energy period ( ) values calculated for a given recurrence interval using a set of data based on hindcast simulations or buoy observations over a sufficient period of record. The use of the inverse first - order reliability method (IFORM) i s standard design practice for generating environmental contours. In this paper, the traditional appli cation of the IFORM to generating environmental contours representing extreme sea states is described in detail and its merits and drawbacks are assessed. The application of additional methods for analyzing sea state data including the use of principal component analysis (PCA) to create an uncorrelated representation of the data under consideration is proposed. A reexamination of the components of the IFORM application to the problem at hand including the use of new distribution fitting techniques are shown to contribute to the development of more accurate a nd reasonable representations of extreme sea states for use in survivability analysis for marine struc tures. Keywords: In verse FORM, Principal Component Analysis , Environmental Contours, Extreme Sea State Characteri zation, Wave Energy Converters

Eckert-Gallup, Aubrey Celia; Sallaberry, Cedric Jean-Marie; Dallman, Ann Renee; Neary, Vincent Sinclair

2014-09-01T23:59:59.000Z

198

Solution accelerators for large scale 3D electromagnetic inverse problems  

SciTech Connect

We provide a framework for preconditioning nonlinear 3D electromagnetic inverse scattering problems using nonlinear conjugate gradient (NLCG) and limited memory (LM) quasi-Newton methods. Key to our approach is the use of an approximate adjoint method that allows for an economical approximation of the Hessian that is updated at each inversion iteration. Using this approximate Hessian as a preconditoner, we show that the preconditioned NLCG iteration converges significantly faster than the non-preconditioned iteration, as well as converging to a data misfit level below that observed for the non-preconditioned method. Similar conclusions are also observed for the LM iteration; preconditioned with the approximate Hessian, the LM iteration converges faster than the non-preconditioned version. At this time, however, we see little difference between the convergence performance of the preconditioned LM scheme and the preconditioned NLCG scheme. A possible reason for this outcome is the behavior of the line search within the LM iteration. It was anticipated that, near convergence, a step size of one would be approached, but what was observed, instead, were step lengths that were nowhere near one. We provide some insights into the reasons for this behavior and suggest further research that may improve the performance of the LM methods.

Newman, Gregory A.; Boggs, Paul T.

2004-04-05T23:59:59.000Z

199

Application Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal  

Open Energy Info (EERE)

Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Area, Japan Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Application Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Area, Japan Details Activities (0) Areas (0) Regions (0) Abstract: A stable inversion technique has been developed for threedimensional (3D) interpretation of magnetotelluric (MT) data. The inversion method is based on the Gauss-Newton (linearized least-squares) method with smoothness regularization. Static shifts are also treated as unknown parameters in the inversion. The forward modeling is done by using the staggered-grid finite difference method. A Bayesian criterion ABIC is applied to searching for the optimum trade-off among the minimization of

200

Numerical solution of an inverse diffraction grating problem from ...  

E-Print Network (OSTI)

Feb 5, 2013 ... An efficient continuation method is developed to recover the Fourier coefficients of the periodic ... design problems in diffractive optics, it is intended to design a .... ?n ? 0; the free-space quasi-periodic Green's function is.

2013-02-02T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

Inverse deuterium isotope effect in the intersystem crossing of diphenylcarbene. Report for 1984-1985  

SciTech Connect

The singlet-to-triplet intersystem crossing rate k/sub ST/ of diphenylcarbene (DPC) is found to exhibit an inverse isotope effect in various solvents. An off-resonance coupling model between the initial singlet state and a sparse triplet vibronic manifold accounts for k/sub ST/ showing both an inverse isotope effect in a given solvent as well as an inverse energy gap effect in a solvent series.

Langan, J.G.; Sitzmann, E.V.; Eisenthal, K.B.

1986-02-07T23:59:59.000Z

202

Uniqueness and partial identification in a geometric inverse problem for the Boussinesq system .  

E-Print Network (OSTI)

??We analyze the inverse problem of the identification of a rigid body immersed in a fluid governed by the stationary Boussinesq system. First, we establish (more)

Doubova, Anna

2006-01-01T23:59:59.000Z

203

E-Print Network 3.0 - alpha inverse agonist Sample Search Results  

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

an inverse... . - Adrenoceptor agonists have been used to treat asthma for more than a century. The mechanisms of action of 2... -adrenoceptor agonists are well characterized...

204

Submillimeter Test of the Gravitational Inverse-Square Law Using a Superconducting Differential Accelerometer .  

E-Print Network (OSTI)

??The inverse-square law of gravitation is tested at submillimeter distances. To minimize Newtonian errors, the experiment employs a near null source, a circular disk of (more)

Prieto, Violeta A

2007-01-01T23:59:59.000Z

205

E-Print Network 3.0 - all-optical inverse compton Sample Search...  

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

the proton Summary: :00 Fujiwara: Science Facilities with Inverse Compton Photon beam in Japan and their new developments 11... Workshop will be held in Physics Astronomy...

206

Integration of Noise and Coda Correlation Data into Kinematic and Waveform Inversions  

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

Integration of Noise and Coda Correlation Data into Kinematic and Waveform Inversions presentation at the April 2013 peer review meeting held in Denver, Colorado.

207

Sub-millimeter tests of the gravitational inverse-square law.  

E-Print Network (OSTI)

??The Newtonian Law of Universal Gravitation states that the strength of the gravitational force between point test bodies falls as the inverse-square of the distance (more)

Hoyle, Charles D., 1974-

2001-01-01T23:59:59.000Z

208

figures for inverse problem paper in 3d - Department of Mathematics ...  

E-Print Network (OSTI)

FIGURES FOR INVERSE PROBLEM PAPER IN 3D. JUAN E. SANTOS. Departamento de Geof sica Aplicada, Facultad de Ciencias Astron omicas y Geof sicas,.

santos

1910-20-20T23:59:59.000Z

209

Time-lapse Joint Inversion of Geophysical Data and its Applications to Geothermal Prospecting  

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

Time-lapse Joint Inversion of Geophysical Data and its Applications to Geothermal Prospecting presentation at the April 2013 peer review meeting held in Denver, Colorado.

210

Feasibility of UV lasing without inversion in mercury vapor  

E-Print Network (OSTI)

We investigate the feasibility of UV lasing without inversion at a wavelength of $253.7$ nm utilizing interacting dark resonances in mercury vapor. Our theoretical analysis starts with radiation damped optical Bloch equations for all relevant 13 atomic levels. These master equations are generalized by considering technical phase noise of the driving lasers. From the Doppler broadened complex susceptibility we obtain the stationary output power from semiclassical laser theory. The finite overlap of the driving Gaussian laser beams defines an ellipsoidal inhomogeneous gain distribution. Therefore, we evaluate the intra-cavity field inside a ring laser self-consistently with Fourier optics. This analysis confirms the feasibility of UV lasing and reveals its dependence on experimental parameters.

Martin R. Sturm; Benjamin Rein; Thomas Walther; Reinhold Walser

2014-06-27T23:59:59.000Z

211

Chirped pulse inverse free-electron laser vacuum accelerator  

DOE Patents (OSTI)

A chirped pulse inverse free-electron laser (IFEL) vacuum accelerator for high gradient laser acceleration in vacuum. By the use of an ultrashort (femtosecond), ultrahigh intensity chirped laser pulse both the IFEL interaction bandwidth and accelerating gradient are increased, thus yielding large gains in a compact system. In addition, the IFEL resonance condition can be maintained throughout the interaction region by using a chirped drive laser wave. In addition, diffraction can be alleviated by taking advantage of the laser optical bandwidth with negative dispersion focusing optics to produce a chromatic line focus. The combination of these features results in a compact, efficient vacuum laser accelerator which finds many applications including high energy physics, compact table-top laser accelerator for medical imaging and therapy, material science, and basic physics.

Hartemann, Frederic V. (Dublin, CA); Baldis, Hector A. (Pleasanton, CA); Landahl, Eric C. (Walnut Creek, CA)

2002-01-01T23:59:59.000Z

212

The Inverse-Cube Central Force Field in Quantum Mechanics  

Science Journals Connector (OSTI)

The problem of the motion of a particle in an inverse-cube central force field is fully treated by quantum mechanics and the results compared with the classical theory. Taking the effective radial potential energy as Sr2, although the solutions for negative energy for 0?S?-h232?2? satisfy the usual boundary conditions, they can not be admitted because the Hamiltonian is not Hermitian in these solutions. This corresponds to taking (l+12)2 in place of l(l+1) as the analogue of the square of the classical angular momentum. If we do this, we get a complete analogy between the classical and quantum mechanically allowed solutions, with no quantization. The solutions involve Bessel functions of both real and imaginary orders with both real and imaginary arguments.

George H. Shortley

1931-07-01T23:59:59.000Z

213

Inverse bremsstrahlung heating rate for dense plasmas in laser fields  

SciTech Connect

We report a theoretical analysis of inverse bremsstrahlung heating rate in the eikonal approximation. The present analysis is performed for a dense plasma using the screened electron-ion interaction potential for the ion charge state Z{sub i} = 1 and for both the weak and strong plasma screening cases. We have also compared the eikonal results with the first Born approximation (FBA) [M. Moll et al., New J. Phys. 14, 065010 (2012)] calculation. We find that the magnitudes of inverse bremsstrahlung heating rate within the eikonal approximation (EA) are larger than the FBA values in the weak screening case (? = 0.03 a.u.) in a wide range of field strength for three different initial electron momenta (2, 3, and 4 a.u.). But for strong screening case (? = 0.3 a.u.), the heating rates predicted by the two approximations do not differ much after reaching their maximum values. Furthermore, the individual contribution of photoemission and photoabsorption processes to heating rate is analysed for both the weak and strong screening cases. We find that the single photoemission and photoabsorption rates are the same throughout the field strength while the multiphoton absorption process dominates over the multiphoton emission process beyond the field strength ? 410{sup 8} V/cm. The present study of the dependence of heating rate on the screening parameter ranging from 0.01 to 20 shows that whereas the heating rate predicted by the EA is greater than the FBA up to the screening parameter ? = 0.3 a.u., the two approximation methods yield results which are nearly identical beyond the above value.

Dey, R. [D-203, Samruddhi Residency, Motera, Ahmedabad-380009, Gujarat (India)] [D-203, Samruddhi Residency, Motera, Ahmedabad-380009, Gujarat (India); Roy, A. C. [School of Mathematical Sciences, Ramakrishna Mission Vivekananda University, Belur Math 711202, West Bengal (India)] [School of Mathematical Sciences, Ramakrishna Mission Vivekananda University, Belur Math 711202, West Bengal (India)

2013-07-15T23:59:59.000Z

214

Atmospheric Inverse Estimates of Methane Emissions from Central California  

SciTech Connect

Methane mixing ratios measured at a tall-tower are compared to model predictions to estimate surface emissions of CH{sub 4} in Central California for October-December 2007 using an inverse technique. Predicted CH{sub 4} mixing ratios are calculated based on spatially resolved a priori CH{sub 4} emissions and simulated atmospheric trajectories. The atmospheric trajectories, along with surface footprints, are computed using the Weather Research and Forecast (WRF) coupled to the Stochastic Time-Inverted Lagrangian Transport (STILT) model. An uncertainty analysis is performed to provide quantitative uncertainties in estimated CH{sub 4} emissions. Three inverse model estimates of CH{sub 4} emissions are reported. First, linear regressions of modeled and measured CH{sub 4} mixing ratios obtain slopes of 0.73 {+-} 0.11 and 1.09 {+-} 0.14 using California specific and Edgar 3.2 emission maps respectively, suggesting that actual CH{sub 4} emissions were about 37 {+-} 21% higher than California specific inventory estimates. Second, a Bayesian 'source' analysis suggests that livestock emissions are 63 {+-} 22% higher than the a priori estimates. Third, a Bayesian 'region' analysis is carried out for CH{sub 4} emissions from 13 sub-regions, which shows that inventory CH{sub 4} emissions from the Central Valley are underestimated and uncertainties in CH{sub 4} emissions are reduced for sub-regions near the tower site, yielding best estimates of flux from those regions consistent with 'source' analysis results. The uncertainty reductions for regions near the tower indicate that a regional network of measurements will be necessary to provide accurate estimates of surface CH{sub 4} emissions for multiple regions.

Zhao, Chuanfeng; Andrews, Arlyn E.; Bianco, Laura; Eluszkiewicz, Janusz; Hirsch, Adam; MacDonald, Clinton; Nehrkorn, Thomas; Fischer, Marc L.

2008-11-21T23:59:59.000Z

215

Design Specifications  

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

Design Design Specifications Services Overview ECS Audio/Video Conferencing Fasterdata IPv6 Network Network Performance Tools (perfSONAR) ESnet OID Registry PGP Key Service Virtual Circuits (OSCARS) OSCARS Case Study Documentation User Manual FAQ Design Specifications Functional Specifications Notifications Publications Authorization Policy Default Attributes Message Security Clients For Developers Interfaces Links Hardware Requirements DOE Grids Service Transition Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Design Specifications OSCARS Reservation Manager - Design Specifications Year 3 Update (DRAFT) David Robertson, Chin Guok

216

A Direct Imaging Method for Inverse Scattering Using the ...  

E-Print Network (OSTI)

functions are designed to visualize the location of the point scatterers and the ..... Based on the Green's representation theorem, it can be shown that the...

Gang Bao; Kai Huang; Peijun Li; Hongkai Zhao

2014-02-21T23:59:59.000Z

217

MA692: Inverse Scattering Problems for Wave Propagation  

E-Print Network (OSTI)

stealth aircraft design and submarine detection), geophysical exploration (e.g., oil and gas exploration), medical imaging (e.g., breast cancer detection),...

2013-08-19T23:59:59.000Z

218

The inverse scattering problem for a discrete Sturm-Liouville equation on the line  

SciTech Connect

This paper investigates the inverse scattering problem for a discrete Sturm-Liouville equation on the entire line with coefficients that stabilize to zero in one direction. We derive a necessary and a sufficient condition on the scattering data so that the inverse problem is uniquely solvable. Bibliography: 23 titles.

Khanmamedov, Agil Kh [Baku State University, Baku (Azerbaijan)

2011-07-31T23:59:59.000Z

219

Non-linear traveltime inversion for 3-D seismic tomography in strongly anisotropic media  

Science Journals Connector (OSTI)

......low velocity body (Shale 2) and produces many...of the non-linear anisotropic inversion, we obtained...high velocity body (Shale 1) and fails to indicate...low velocity block (Shale 2). By contrast...of the non-linear anisotropic inversion yields clear......

Bing Zhou; Stewart Greenhalgh

2008-01-01T23:59:59.000Z

220

Math. H110 Gauss-Jordan Inversion October 16, 1998 Prof. W. Kahan Page 1  

E-Print Network (OSTI)

Math. H110 Gauss-Jordan Inversion October 16, 1998 Prof. W. Kahan Page 1 Gauss-Jordan Inversion accurate on some machines, is based upon Gauss-Jordan Elimination, a process that resembles Gaussian purpose is twofold; first to explain how Gauss- Jordan Elimination works when pivotal exchanges

California at Berkeley, University of

Note: This page contains sample records for the topic "inverse design cid" 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

SO2 emissions and lifetimes: Estimates from inverse modeling using in situ and global, spacebased  

E-Print Network (OSTI)

SO2 emissions and lifetimes: Estimates from inverse modeling using in situ and global, spacebased 18 March 2011. [1] Topdown constraints on global sulfur dioxide (SO2) emissions are inferred through of GEOSChem for inversion of SO2 columns to emissions. The seasonal mean SO2 lifetime calculated with the GEOS

Martin, Randall

222

Inverting geodetic time series with a principal component analysis-based inversion method  

E-Print Network (OSTI)

Inverting geodetic time series with a principal component analysis-based inversion method A. P (2010), Inverting geodetic time series with a principal component analysis-based inversion method, J; Cohen, 1999]. This formulation is linear and easily inverted using standard algorithms. The distribution

Avouac, Jean-Philippe

223

Volume Currents in Forward and Inverse MEG Simulations Using Realistic Head Models  

E-Print Network (OSTI)

Volume Currents in Forward and Inverse MEG Simulations Using Realistic Head Models Robert Van of magnetoencephalographic (MEG) forward or inverse sim­ ulations in realistic head models. We verify the accuracy, in an inhomogeneous, non­spherical realistic head model, the magnetic field normal to the MEG detector due to volume

Utah, University of

224

Proteome analysis of factor for inversion stimulation (Fis) overproduction in Escherichia coli  

E-Print Network (OSTI)

Proteome analysis of factor for inversion stimulation (Fis) overproduction in Escherichia coli The factor-for-inversion stimulation protein (Fis) is a global regulatory protein in Escherichia coliRNA promoter and enhances transcription 5- to 10-fold in vivo. Fis overexpression results in different effects

Chen, Wilfred

225

Lossy Electric Transmission Line Soft Fault Diagnosis: an Inverse Scattering Approach  

E-Print Network (OSTI)

1 Lossy Electric Transmission Line Soft Fault Diagnosis: an Inverse Scattering Approach Huaibin transmission lines is studied through the inverse scattering approach. The considered soft faults are modeled as continuous spatial variations of distributed characteristic parameters of transmission lines. The diagnosis

Paris-Sud XI, Université de

226

Partial and Full Inverse Compensation for Hysteresis in Smart Material Systems  

E-Print Network (OSTI)

Partial and Full Inverse Compensation for Hysteresis in Smart Material Systems Ralph C. Smith Chad Smart material transducers employing piezoceramic or magnetostrictive drive components typically exhibit and hysteresis in­ herent to the smart material components. The second technique employs a partial inverse

227

LENDA, a Low Energy Neutron Detector Array for experiments with radioactive beams in inverse kinematics  

E-Print Network (OSTI)

The Low Energy Neutron Detector Array (LENDA) is a neutron time-of-flight (TOF) spectrometer developed at the National Superconducting Cyclotron Lab- oratory (NSCL) for use in inverse kinematics experiments with rare isotope beams. Its design has been motivated by the need to study the spin-isospin response of unstable nuclei using (p, n) charge-exchange reactions at intermediate energies (> 100 MeV/u). It can be used, however, for any reaction study that involves emission of low energy neutrons (150 keV - 10 MeV). The array consists of 24 plastic scintillator bars and is capable of registering the recoiling neutron energy and angle with high detection efficiency. The neutron energy is determined by the time-of-flight technique, while the position of interaction is deduced using the timing and energy information from the two photomultipliers of each bar. A simple test setup utilizing radioactive sources has been used to characterize the array. Results of test measurements are compared with simulations. A neutron energy threshold of 20 % for neutrons below 4 MeV have been obtained.

G. Perdikakis; M. Sasano; Sam M. Austin; D. Bazin; C. Caesar; S. Cannon; J. M. Deaven; H. J. Doster; C. J. Guess; G. W. Hitt; J. Marks; R. Meharchand; D. T. Nguyen; D. Peterman; A. Prinke; M. Scott; Y. Shimbara; K. Thorne; L. Valdez; R. G. T. Zegers

2012-05-21T23:59:59.000Z

228

Transfer Matrices as Non-Unitary S-Matrices, Multimode Unidirectional Invisibility, and Perturbative Inverse Scattering  

E-Print Network (OSTI)

We show that in one dimension the transfer matrix M of any scattering potential v coincides with the S-matrix of an associated time-dependent non-Hermitian 2 x 2 matrix Hamiltonian H(\\tau). If v is real-valued, H(\\tau) is pseudo-Hermitian and its exceptional points correspond to the classical turning points of v. Applying time-dependent perturbation theory to H(\\tau) we obtain a perturbative series expansion for M and use it to study the phenomenon of unidirectional invisibility. In particular, we establish the possibility of having multimode unidirectional invisibility with wavelength-dependent direction of invisibility and construct various physically realizable optical potentials possessing this property. We also offer a simple demonstration of the fact that the off-diagonal entries of the first Born approximation for M determine the form of the potential. This gives rise to a perturbative inverse scattering scheme that is particularly suitable for optical design. As a simple application of this scheme, we construct an infinite-range unidirectionally invisible potential.

Ali Mostafazadeh

2013-11-07T23:59:59.000Z

229

Design Considerations  

Office of Environmental Management (EM)

and leakage rates into and out of the cleanup system tend to become additional factors that must be considered in the overall design of the facility. When cleanup systems...

230

Biosystems Design  

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

Breakout Session 2: Frontiers and Horizons Session 2-A: Synthetic Biology and the Promise of Biofuels Pablo Rabinowicz, Program Manager, Biosystems Design Program, Biological and Environmental Research (BER), U.S. Department of Energy

231

Acceleration of electrons using an inverse free electron laser auto- accelerator  

SciTech Connect

We present data from our study of a device known as the inverse free electron laser. First, numerical simulations were performed to optimize the design parameters for an experiment that accelerates electrons in the presence of an undulator by stimulated absorption of radiation. The Columbia free electron laser (FEL) was configured as an auto-accelerator (IFELA) system; high power (MW's) FEL radiation at {approximately}1.65 mm is developed along the first section of an undulator inside a quasi-optical resonator. The electron beam then traverses a second section of undulator where a fraction of the electrons is accelerated by stimulated absorption of the 1.65 mm wavelength power developed in the first undulator section. The second undulator section has very low gain and does not generate power on its own. We have found that as much as 60% of the power generated in the first section can be absorbed in the second section, providing that the initial electron energy is chosen correctly with respect to the parameters chosen for the first and second undulators. An electron momentum spectrometer is used to monitor the distribution of electron energies as the electrons exit the IFELA. We have found; using our experimental parameters, that roughly 10% of the electrons are accelerated to energies as high as 1100 keV, in accordance with predictions from the numerical model. The appearance of high energy electrons is correlated with the abrupt absorption of millimeter power. The autoaccelerator configuration is used because there is no intense source of coherent power at the 1.65 mm design wavelength other than the FEL.

Wernick, I.K.; Marshall, T.C.

1992-07-01T23:59:59.000Z

232

Acceleration of electrons using an inverse free electron laser auto- accelerator  

SciTech Connect

We present data from our study of a device known as the inverse free electron laser. First, numerical simulations were performed to optimize the design parameters for an experiment that accelerates electrons in the presence of an undulator by stimulated absorption of radiation. The Columbia free electron laser (FEL) was configured as an auto-accelerator (IFELA) system; high power (MW`s) FEL radiation at {approximately}1.65 mm is developed along the first section of an undulator inside a quasi-optical resonator. The electron beam then traverses a second section of undulator where a fraction of the electrons is accelerated by stimulated absorption of the 1.65 mm wavelength power developed in the first undulator section. The second undulator section has very low gain and does not generate power on its own. We have found that as much as 60% of the power generated in the first section can be absorbed in the second section, providing that the initial electron energy is chosen correctly with respect to the parameters chosen for the first and second undulators. An electron momentum spectrometer is used to monitor the distribution of electron energies as the electrons exit the IFELA. We have found; using our experimental parameters, that roughly 10% of the electrons are accelerated to energies as high as 1100 keV, in accordance with predictions from the numerical model. The appearance of high energy electrons is correlated with the abrupt absorption of millimeter power. The autoaccelerator configuration is used because there is no intense source of coherent power at the 1.65 mm design wavelength other than the FEL.

Wernick, I.K.; Marshall, T.C.

1992-07-01T23:59:59.000Z

233

Automated Technique For Comparison Of Magnetic Field Inversion Lines With Filament Skeletons From The Solar Feature Catalogue  

Science Journals Connector (OSTI)

We present an automated technique for comparison of magnetic field inversion-line maps from SOHO/MDI magnetograms with solar ... component labelling are used to identify nearest inversion lines to filament skelet...

S. S. Ipson; V. V. Zharkova; S. Zharkov; A. K. Benkhalil; J. Aboudarham

2005-05-01T23:59:59.000Z

234

Solving Inverse Detection Problems Using Passive Radiation Signatures  

SciTech Connect

The ability to reconstruct an unknown radioactive object based on its passive gamma-ray and neutron signatures is very important in homeland security applications. Often in the analysis of unknown radioactive objects, for simplicity or speed or because there is no other information, they are modeled as spherically symmetric regardless of their actual geometry. In these presentation we discuss the accuracy and implications of this approximation for decay gamma rays and for neutron-induced gamma rays. We discuss an extension of spherical raytracing (for uncollided fluxes) that allows it to be used when the exterior shielding is flat or cylindrical. We revisit some early results in boundary perturbation theory, showing that the Roussopolos estimate is the correct one to use when the quantity of interest is the flux or leakage on the boundary. We apply boundary perturbation theory to problems in which spherically symmetric systems are perturbed in asymmetric nonspherical ways. We apply mesh adaptive direct search (MADS) algorithms to object reconstructions. We present a benchmark test set that may be used to quantitatively evaluate inverse detection methods.

Favorite, Jeffrey A. [Los Alamos National Laboratory; Armstrong, Jerawan C. [Los Alamos National Laboratory; Vaquer, Pablo A. [Los Alamos National Laboratory

2012-08-15T23:59:59.000Z

235

Nonlocal independent pixel approximation: Direct and inverse problems  

SciTech Connect

The independent pixel approximation (IPA), which treats radiative properties of each pixel independently by using standard plane-parallel calculations preserves scale-invariance found in the analyses of the horizontal variability of liquid water in marine stratocumulus clouds. Several studies, however, report a violation of scale-invariance in LANDSAT cloud radiance fields that are much smoother than cloud structure on small scales. This shows a limitation of IPA on small scales: it is unable to simulate the smooth small-scale behavior that is due to the horizontal photon transport. This paper introduces a nonlocal independent pixel approximation (NIPA) that extends the IPA by incorporating empirically the smoothing effects of horizontal interpixel fluxes through a convolution product of the IPA and an approximate Green function for radiative transfer. The authors also address the inverse problem of cloud optical depth retrieval from satellite data, showing how NIPA can be used to overcome the limitations of current IPA-based methods at small scales.

Marshak, A. [NASA Goddard Space Flight Center, Greenbelt, MD (United States). Climate and Radiation Branch] [NASA Goddard Space Flight Center, Greenbelt, MD (United States). Climate and Radiation Branch; [Univ. of Maryland Baltimore County, Baltimore, MD (United States). Joint Center for Earth Systems Technology; Davis, A. [NASA Goddard Space Flight Center, Greenbelt, MD (United States). Climate and Radiation Branch] [NASA Goddard Space Flight Center, Greenbelt, MD (United States). Climate and Radiation Branch; [Science Systems and Applications, Inc., Lanham, MD (United States); Cahalan, R.F.; Wiscombe, W. [NASA Goddard Space Flight Center, Greenbelt, MD (United States). Climate and Radiation Branch] [NASA Goddard Space Flight Center, Greenbelt, MD (United States). Climate and Radiation Branch

1998-01-01T23:59:59.000Z

236

Direct and Inverse Cascades in the Wind-Driven Sea  

E-Print Network (OSTI)

We offer a new form for the S(nl) term in the Hasselmann kinetic equation for squared wave amplitudes of wind-driven gravity wave. This form of S(nl) makes possible to rewrite in differential form the conservation laws for energy, momentum, and wave action, and introduce their fluxes by a natural way. We show that the stationary kinetic equation has a family of exact Kolmogorov-type solutions governed by the fluxes of motion constants: wave action, energy, and momentum. The simple "local" model for S(nl) term that is equivalent to the "diffusion approximation" is studied in details. In this case, Kolmogorov spectra are found in the explicit form. We show that a general solution of the stationary kinetic equation behind the spectral peak is described by the Kolmogorov-type solution with frequency-dependent fluxes. The domains of "inverse cascade" and "direct cascade" can be separated by natural way. The spectrum in the universal domain is close to $\\omega^{-4}$.

Zakharov, Vladimir E

2015-01-01T23:59:59.000Z

237

Development of an Inverse Algorithm for Resonance Inspection  

SciTech Connect

Resonance inspection (RI), which employs the natural frequency spectra shift between the good and the anomalous part populations to detect defects, is a non-destructive evaluation (NDE) technique with many advantages such as low inspection cost, high testing speed, and broad applicability to structures with complex geometry compared to other contemporary NDE methods. It has already been widely used in the automobile industry for quality inspections of safety critical parts. Unlike some conventionally used NDE methods, the current RI technology is unable to provide details, i.e. location, dimension, or types, of the flaws for the discrepant parts. Such limitation severely hinders its wide spread applications and further development. In this study, an inverse RI algorithm based on maximum correlation function is proposed to quantify the location and size of flaws for a discrepant part. A dog-bone shaped stainless steel sample with and without controlled flaws are used for algorithm development and validation. The results show that multiple flaws can be accurately pinpointed back using the algorithms developed, and the prediction accuracy decreases with increasing flaw numbers and decreasing distance between flaws.

Lai, Canhai; Xu, Wei; Sun, Xin

2012-10-01T23:59:59.000Z

238

Nonlinear Adaptive Dynamic Inversion Control for Hypersonic Vehicles  

E-Print Network (OSTI)

Because of the widely varying flight conditions in which hypersonic vehicles operate and certain aspects unique to hypersonic flight, the development of control architectures for these vehicles presents a challenge. Previous work on control design...

Rollins, Elizabeth

2013-09-03T23:59:59.000Z

239

Inverse problems in elliptic charged-particle beams  

E-Print Network (OSTI)

The advantages of elliptic (or sheet) beams have been known for many years, but their inherent three-dimensional nature presents significant theoretical, design, and experimental challenges in the development of elliptic ...

Bhatt, Ronak Jayant

2006-01-01T23:59:59.000Z

240

Stabilised nonlinear inverse diffusion for approximating hyperbolic PDEs  

Science Journals Connector (OSTI)

Stabilised backward diffusion processes have shown their use for a number of image enhancement tasks. The goal of this paper is to show that they are also highly useful for designing shock capturing numerical schemes for hyperbolic conservation laws. ...

Michael Breu; Thomas Brox; Thomas Sonar; Joachim Weickert

2005-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

Inverse Cotton-Mouton effect of the Vacuum and of atomic sys-C. Rizzo1,2,3  

E-Print Network (OSTI)

epl draft Inverse Cotton-Mouton effect of the Vacuum and of atomic sys- tems C. Rizzo1,2,3 , A.mm.xx ­ Third pacs description Abstract. - In this letter we calculate the Inverse Cotton-Mouton Effect (ICME magnetic field and a powerful light source are necessary. One of these effects is the inverse Cotton

Boyer, Edmond

242

Velocity structure of upper-mantle transition zones beneath central Eurasia from seismic inversion using genetic algorithms  

Science Journals Connector (OSTI)

......inversion, 60th Ann. Internat. Mtg., Soc. Expl. Geophys...control the likelihood of this process. A posteriori probability density...affected) into the whole inversion process. Therefore, no genetic feature...inversion, 60th Ann. Internat. Mtg., Soc. Expl. Geophys......

Fernando A. Neves; Satish C. Singh; Keith F. Priestley

1996-06-01T23:59:59.000Z

243

A TEM study of inverse melting in Nb{sub 45}Cr{sub 55}  

SciTech Connect

Inverse melting of bcc Nb{sub 45}Cr{sub 55} is investigated using transmission electron microscopy, high-resolution TEM and electron diffraction. It is shown that the transformation to the amorphous phase initiates at the bcc grain boundaries. The transformation results in an increase in incoherence, evidenced by a loss of bend contours. Some anisotropy is found in the amorphous phase produced by inverse melting, which is associated in HRTEM with preferentially oriented but discontinuous and distorted fringes. The results are consistent with the production of an amorphous phase by inverse melting.

Sinkler, W.; Michaelsen, C.; Bormann, R. [GKSS Forschungszentrum, Geesthacht (Germany). Inst. for Materials Research

1996-12-31T23:59:59.000Z

244

Anomaly-free perturbations with inverse-volume and holonomy corrections in Loop Quantum Cosmology  

E-Print Network (OSTI)

This article addresses the issue of the closure of the algebra of constraints for generic (cosmological) perturbations when taking into account simultaneously the two main corrections of effective loop quantum cosmology, namely the holonomy and the inverse-volume terms. Previous works on either the holonomy or the inverse volume case are reviewed and generalized. In the inverse-volume case, we point out new possibilities. An anomaly-free solution including both corrections is found for perturbations, and the corresponding equations of motion are derived.

Thomas Cailleteau; Linda Linsefors; Aurelien Barrau

2014-03-04T23:59:59.000Z

245

Rayleigh scattering and nonlinear inversion of elastic waves  

SciTech Connect

Rayleigh scattering of elastic waves by an inclusion is investigated and the limitations determined. In the near field of the inhomogeneity, the scattered waves are up to a factor of 300 stronger than in the far field, excluding the application of the far field Rayleigh approximation for this range. The investigation of the relative error as a function of parameter perturbation shows a range of applicability broader than previously assumed, with errors of 37% and 17% for perturbations of {minus}100% and +100%, respectively. The validity range for the Rayleigh limit is controlled by large inequalities, and therefore, the exact limit is determined as a function of various parameter configurations, resulting in surprisingly high values of up to k{sub p}R = 0.9. The nonlinear scattering problem can be solved by inverting for equivalent source terms (moments) of the scatterer, before the elastic parameters are determined. The nonlinear dependence between the moments and the elastic parameters reveals a strong asymmetry around the origin, which will produce different results for weak scattering approximations depending on the sign of the anomaly. Numerical modeling of cross hole situations shows that near field terms are important to yield correct estimates of the inhomogeneities in the vicinity of the receivers, while a few well positioned sources and receivers considerably increase the angular coverage, and thus the model resolution of the inversion parameters. The pattern of scattered energy by an inhomogeneity is complicated and varies depending on the object, the wavelength of the incident wave, and the elastic parameters involved. Therefore, it is necessary to investigate the direction of scattered amplitudes to determine the best survey geometry.

Gritto, R.

1995-12-01T23:59:59.000Z

246

Aircraft Design  

Science Journals Connector (OSTI)

... his subject is more applied than academic, making it appear to be a designer's handbook rather than a student's text-book. Even then he falls between two stools ... falls between two stools, giving neither enough facts and figures for the one, nor fundamental proofs for the other. Nevertheless the subject matter, so far as it goes, ...

1940-03-09T23:59:59.000Z

247

DESIGN SUPPORT TOOLS 599 INTERNATIONAL DESIGN CONFERENCE -DESIGN 2012  

E-Print Network (OSTI)

DESIGN SUPPORT TOOLS 599 INTERNATIONAL DESIGN CONFERENCE - DESIGN 2012 Dubrovnik - Croatia, May 21 - 24, 2012. CAN COMPUTER GRAPHIC SYSTEM BE USED TO INFORM DESIGNERS ABOUT INCLUSIVITY? E. Zitkus, P. Langdon and P. J. Clarkson Keywords: inclusive design, accessibility, CAD, design process 1. Introduction

Crilly, Nathan

248

Meta-Design--Design for Designers Gerhard Fischer  

E-Print Network (OSTI)

1 Meta-Design--Design for Designers Gerhard Fischer Center for LifeLong Learning and Design (L3 D-0430 USA gerhard@cs.colorado.edu Eric Scharff Center for LifeLong Learning and Design (L3 D) Department scharffe@cs.colorado.edu ABSTRACT One fundamental challenge for the design of the interactive systems

Fischer, Gerhard

249

2D Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The  

Open Energy Info (EERE)

Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The Evaluation Of Low Enthalpy Geothermal Fields Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 2D Joint Inversion Of DC And Scalar Audio-Magnetotelluric Data In The Evaluation Of Low Enthalpy Geothermal Fields Details Activities (0) Areas (0) Regions (0) Abstract: Audio-magnetotelluric (AMT) and resistivity (dc) surveys are often used in environmental, hydrological and geothermal evaluation. The separate interpretation of those geophysical data sets assuming two-dimensional models frequently produces ambiguous results. The joint inversion of AMT and dc data is advocated by several authors as an efficient method for reducing the ambiguity inherent to each of those

250

Inverse natural convection problem of estimating wall heat flux using a moving sensor  

SciTech Connect

Inverse heat transfer problems have many applications in various branch of science and engineering. Here, the inverse problem of determining heat flux at the bottom wall of a two-dimensional cavity from temperature measurement in the domain is considered. The Boussinesq equation is used to model the natural convection induced by the wall heat flux. The inverse natural convection problem is posed as a minimization problem of the performance function, which is the sum of square residuals between calculated and observed temperature, by means of a conjugate gradient method. Instead of employing several fixed sensors, a single sensor is used which is moving at a given frequency over the bottom wall. The present method solves the inverse natural convection problem accurately without a priori information about the unknown function to be estimated.

Park, H.M.; Chung, O.Y.

1999-11-01T23:59:59.000Z

251

A parametrization study for surface seismic full waveform inversion in an acoustic vertical transversely isotropic medium  

Science Journals Connector (OSTI)

......acoustic wave equation for anisotropic media, Geophysics, 65...theory and modelling for anisotropic media, Geophys. J. Int...1984. Velocity anisotropy of shales and depth estimation in the...Feasibility study for an anisotropic full waveform inversion of......

R.-. Plessix; Q. Cao

2011-04-01T23:59:59.000Z

252

E-Print Network 3.0 - aerosol parameter inversion Sample Search...  

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

parameter inversion Page: << < 1 2 3 4 5 > >> 1 The Way Forward2 Authors: David Rind, NASA GISS; Ralph A. Kahn, NASA GSFC; Mian Chin, NASA3 Summary: ) hygroscopic growth, (f)...

253

Estimation of Impedance Using Seismic Reflection Data Based on Transdimensional Inversion  

E-Print Network (OSTI)

Deterministic seismic inversion can obtain optimal results when there is a linear relationship between data and model parameters during local optimization (single optimum solution). For nonlinear geophysical problems and in the presence of multiple...

Dadi, Sireesh

2014-04-23T23:59:59.000Z

254

Stochastic and Deterministic Inversion Methods for History Matching of Production and Time-Lapse Seismic Data  

E-Print Network (OSTI)

-based inversion methods as a deterministic approach for integrating both production and time-lapse seismic data into high resolution reservoir models. For the ensemble Kalman filter, we develope a physically motivated phase streamline-based covariance...

Watanabe, Shingo

2013-08-26T23:59:59.000Z

255

Comprehensive inverse modeling for the study of carrier transport models in sub-50nm MOSFETs  

E-Print Network (OSTI)

Direct quantitative 2-D characterization of sub-50 nm MOSFETs continues to be elusive. This research develops a comprehensive indirect inverse modeling technique for extracting 2-D device topology using combined log(I)-V ...

Djomehri, Ihsan Jahed, 1976-

2002-01-01T23:59:59.000Z

256

A Full Field Inversion Method for Acoustic Tomography of Ocean Currents  

Science Journals Connector (OSTI)

An extension of the matched field inversion technique to include oceanic current tomography is considered. Matching of the non-reciprocity of acoustic fields propagated in opposite directions (instead of match...

O. A. Godin; D. Yu. Mikhin; A. V. Mokhov

1995-01-01T23:59:59.000Z

257

Structural fabric of the Palisades Monocline: a study of positive inversion, Grand Canyon, Arizona  

E-Print Network (OSTI)

. During inversion, contraction induced reverse reactivation of existing hanging wall faults, footwall folding and footwall thrust-faulting. Precambrian normal slip along the master normal fault and subsequent Laramide reverse slip along the new footwall...

Orofino, James Cory

2005-08-29T23:59:59.000Z

258

Chromosomal evolution in the Drosophila cardini group (Diptera: Drosophilidae): photomaps and inversion analysis  

Science Journals Connector (OSTI)

Phylogenetic relationships within the cardini...group have been proposed using male genital morphology and intercrossing tests (Futch 1962; Heed 1962), chromosomal inversions (Heed and Russell 1971), allozyme pol...

Juliana Cordeiro; Daniela Cristina De Toni; Gisele de Souza da Silva

2014-10-01T23:59:59.000Z

259

Evidence for Large-Scale Laramide Tectonic Inversion and a Mid...  

Open Energy Info (EERE)

Scale Laramide Tectonic Inversion and a Mid-Tertiary Caldera Ring Fracture Zone at the Lightning Dock Geothermal System, New Mexico Jump to: navigation, search OpenEI Reference...

260

Parameter Identification for a Dispersive Dielectric in 2D Electromagnetics: Forward and Inverse  

E-Print Network (OSTI)

Parameter Identification for a Dispersive Dielectric in 2D Electromagnetics: Forward and Inverse with a Debye dielectric slab and PML absorbing boundaries. This system assumes that the electric #12;Parameter

Note: This page contains sample records for the topic "inverse design cid" 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

Particle-Filter-Based Multisensor Fusion For Solving Low-Frequency Electromagnetic NDE Inverse Problems  

SciTech Connect

Flaw profile characterization from NDE measurements is a typical inverse problem. A novel transformation of this inverse problem into a tracking problem, and subsequent application of a sequential Monte Carlo method called particle filtering, has been proposed by the authors in an earlier publication [1]. In this study, the problem of flaw characterization from multi-sensor data is considered. The NDE inverse problem is posed as a statistical inverse problem and particle filtering is modified to handle data from multiple measurement modes. The measurement modes are assumed to be independent of each other with principal component analysis (PCA) used to legitimize the assumption of independence. The proposed particle filter based data fusion algorithm is applied to experimental NDE data to investigate its feasibility.

Khan, T.; Ramuhalli, Pradeep; Dass, Sarat

2011-06-30T23:59:59.000Z

262

Application Of 3D Inversion To Magnetotelluric Data In The Ogiri...  

Open Energy Info (EERE)

Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Area, Japan Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Application Of 3D...

263

A Unified Approach to Various Techniques for the Nonuniqueness of the Inverse Gravimetric Problem  

E-Print Network (OSTI)

­posed inverse problem is the inversion of New- ton's Law of Gravitation V (y) = B D(x) |x - y| dx , where V is the gravitational potential, which is given, for example at the Earth's surface or at satellite height, is the gravitational constant, B is the closed unit ball, and D L2(B) is the unknown mass density function. The first

264

On Assessing the Accuracy of Offshore Wind Turbine Reliability-Based Design Loads from the Environmental Contour Method  

E-Print Network (OSTI)

On Assessing the Accuracy of Offshore Wind Turbine Reliability-Based Design Loads from to derive design loads for an active stall-regulated offshore wind turbine. Two different Danish offshore contour method; wind turbine; offshore; reliability. INTRODUCTION Inverse reliability techniques

Manuel, Lance

265

An efficient strategy for the inversion of bidirectional reflectance models with satellite remote sensing data  

SciTech Connect

The angular distribution of radiation scattered by the earth surface contains information on the structural and optical properties of the surface. Potentially, this information may be retrieved through the inversion of surface bidirectional reflectance distribution function (BRDF) models. This report details the limitations and efficient application of BRDF model inversions using data from ground- and satellite-based sensors. A turbid medium BRDF model, based on the discrete ordinates solution to the transport equation, was used to quantify the sensitivity of top-of-canopy reflectance to vegetation and soil parameters. Results were used to define parameter sets for inversions. Using synthetic reflectance values, the invertibility of the model was investigated for different optimization algorithms, surface and sampling conditions. Inversions were also conducted with field data from a ground-based radiometer. First, a soil BRDF model was inverted for different soil and sampling conditions. A condition-invariant solution was determined and used as the lower boundary condition in canopy model inversions. Finally, a scheme was developed to improve the speed and accuracy of inversions.

Privette, J.L.

1994-12-31T23:59:59.000Z

266

The borderlines of the invisibility and visibility for Calderon's inverse problem  

E-Print Network (OSTI)

We consider the determination of a conductivity function in a two-dimensional domain from the Cauchy data of the solutions of the conductivity equation on the boundary. We prove uniqueness results for this inverse problem, posed by Calderon, for conductivities that are degenerate, that is, they may not be bounded from above or below. In particular, for scalar conductivities we solve the inverse problem in a class which is larger than $L^\\infty$. Also, we give new counterexamples for the uniqueness of the inverse conductivity problem. We say that a conductivity is visible if the inverse problem is solvable so that the inside of the domain can be uniquely determined, up to a change of coordinates, using the boundary measurements. The present counterexamples for the inverse problem have been related to the invisibility cloaking. This means that there are conductivities for which a part of the domain is shielded from detection via boundary measurements. Such conductivities are called invisibility cloaks. In the present paper we identify the borderline of the visible conductivities and the borderline of invisibility cloaking conductivities. Surprisingly, these borderlines are not the same. We show that between the visible and the cloaking conductivities there are the electric holograms, conductivities which create an illusion of a non-existing body. The electric holograms give counterexamples for the uniqueness of the inverse problem which are less degenerate than the previously known ones.

Kari Astala; Matti Lassas; Lassi Paivarinta

2011-09-13T23:59:59.000Z

267

Institute of Design Institute of Design  

E-Print Network (OSTI)

Institute of Design Institute of Design 350 N. LaSalle St. Chicago, IL 60610 312.595.4900 design The Institute of Design has continuously explored emerg- ing ideas about how design interacts with society languages and use of new media and material. The school was renamed the Institute of Design (ID) in 1944

Heller, Barbara

268

Efficient Inversion of Mult-frequency and Multi-Source Electromagnetic Data  

SciTech Connect

The project covered by this report focused on development of efficient but robust non-linear inversion algorithms for electromagnetic induction data, in particular for data collected with multiple receivers, and multiple transmitters, a situation extremely common in eophysical EM subsurface imaging methods. A key observation is that for such multi-transmitter problems each step in commonly used linearized iterative limited memory search schemes such as conjugate gradients (CG) requires solution of forward and adjoint EM problems for each of the N frequencies or sources, essentially generating data sensitivities for an N dimensional data-subspace. These multiple sensitivities allow a good approximation to the full Jacobian of the data mapping to be built up in many fewer search steps than would be required by application of textbook optimization methods, which take no account of the multiplicity of forward problems that must be solved for each search step. We have applied this idea to a develop a hybrid inversion scheme that combines features of the iterative limited memory type methods with a Newton-type approach using a partial calculation of the Jacobian. Initial tests on 2D problems show that the new approach produces results essentially identical to a Newton type Occam minimum structure inversion, while running more rapidly than an iterative (fixed regularization parameter) CG style inversion. Memory requirements, while greater than for something like CG, are modest enough that even in 3D the scheme should allow 3D inverse problems to be solved on a common desktop PC, at least for modest (~ 100 sites, 15-20 frequencies) data sets. A secondary focus of the research has been development of a modular system for EM inversion, using an object oriented approach. This system has proven useful for more rapid prototyping of inversion algorithms, in particular allowing initial development and testing to be conducted with two-dimensional example problems, before approaching more computationally cumbersome three-dimensional problems.

Gary D. Egbert

2007-03-22T23:59:59.000Z

269

Design Modifications for Increasing the BOM and EOM Power Output and Reducing the Size and Mass of RTG for the Pluto Mission  

SciTech Connect

A companion paper analyzed the effect on source modules for three specific fuel options, and compared the predicted power output with JPL's latest goals for the Pluto Fast Flyby (PFF) mission. The results showed that a 5-module RTG cannot fully meet JPL's goals with any of the available fuels; and that a 6-module RTG more than meets those goals with Russian fuel, almost meets them with U.S. (Cassini-type) fuel, but still falls far short of meeting them with the depleted fuel from the aged (1982) Galileo spare RTG. The inadequacy of the aged fuel was disappointing,because heat source modules made from it already exist, and their use in PFF could result in substantial cost savings. The present paper describes additional analyses which showed that a six-module RTG with the aged fuel can meet JPL's stipulated power margin with a relatively simple design modification, that a second design modification makes it possible to recover all of the mass and size penalty for going from five to six heat source modules, and that a third modification could raise the EOM power margin to 16%. There are four copies in the file. Cross Reference ESD Files FSC-ESD-217-94-531 (CID #8572)

Schock, Alfred; Or, Chuen T; Kumar, Vasanth

1994-06-01T23:59:59.000Z

270

The influence of air temperature inversions on snowmelt and glacier mass-balance simulations, Ammassalik island, SE Greenland  

SciTech Connect

In many applications, a realistic description of air temperature inversions is essential for accurate snow and glacier ice melt, and glacier mass-balance simulations. A physically based snow-evolution modeling system (SnowModel) was used to simulate eight years (1998/99 to 2005/06) of snow accumulation and snow and glacier ice ablation from numerous small coastal marginal glaciers on the SW-part of Ammassalik Island in SE Greenland. These glaciers are regularly influenced by inversions and sea breezes associated with the adjacent relatively low temperature and frequently ice-choked fjords and ocean. To account for the influence of these inversions on the spatiotemporal variation of air temperature and snow and glacier melt rates, temperature inversion routines were added to MircoMet, the meteorological distribution sub-model used in SnowModel. The inversions were observed and modeled to occur during 84% of the simulation period. Modeled inversions were defined not to occur during days with strong winds and high precipitation rates due to the potential of inversion break-up. Field observations showed inversions to extend from sea level to approximately 300 m a.s.l., and this inversion level was prescribed in the model simulations. Simulations with and without the inversion routines were compared. The inversion model produced air temperature distributions with warmer lower elevation areas and cooler higher elevation areas than without inversion routines due to the use of cold sea-breeze base temperature data from underneath the inversion. This yielded an up to 2 weeks earlier snowmelt in the lower areas and up to 1 to 3 weeks later snowmelt in the higher elevation areas of the simulation domain. Averaged mean annual modeled surface mass-balance for all glaciers (mainly located above the inversion layer) was -720 {+-} 620 mm w.eq. y{sup -1} for inversion simulations, and -880 {+-} 620 mm w.eq. y{sup -1} without the inversion routines, a difference of 160 mm w.eq. y{sup -1}. The annual glacier loss for the two simulations was 50.7 x 10{sup 6} m{sup 3} y{sup -1} and 64.4 x 10{sup 6} m{sup 3} y{sup -1} for all glaciers - a difference of {approx}21%. The average equilibrium line altitude (ELA) for all glaciers in the simulation domain was located at 875 m a.s.l. and at 900 m a.s.l. for simulations with or without inversion routines, respectively.

Mernild, Sebastian Haugard [Los Alamos National Laboratory; Liston, Glen [COLORADO STATE UNIV.

2009-01-01T23:59:59.000Z

271

Design Editorial A Design Societies Federation  

E-Print Network (OSTI)

Journal of Mechanical Design Editorial A Design Societies Federation You can recognize the many faces of design by looking at the many different professional societies that promote design around the world. These societies may have roots in engineering or archi- tecture or industrial design but they all

Papalambros, Panos

272

A GOODNESS-OF-FIT TEST FOR THE INVERSE GAUSSIAN DISTRIBUTION BASED ON THE MATSUMOTO-YOR PROPERTY  

E-Print Network (OSTI)

A GOODNESS-OF-FIT TEST FOR THE INVERSE GAUSSIAN DISTRIBUTION BASED ON THE MATSUMOTO-YOR PROPERTY-of-fit test for the inverse Gaussian distribution. Résumé : Soient X et Y des variables aléatoires positives utilisons cette pro- priété pour proposer un test d'adéquation pour la loi gaussienne inverse. Keywords

Boyer, Edmond

273

The $?$-term, CP$^{N-1}$ Model and the Inversion Approach in the Imaginary $?$ Method  

E-Print Network (OSTI)

The weak coupling region of CP$^{N-1}$ lattice field theory with the $\\theta$-term is investigated. Both the usual real theta method and the imaginary theta method are studied. The latter was first proposed by Bhanot and David. Azcoiti et al. proposed an inversion approach based on the imaginary theta method. The role of the inversion approach is investigated in this paper. A wide range of values of $h=-{\\rm Im} \\theta$ is studied, where $\\theta $ denotes the magnitude of the topological term. Step-like behavior in the $x$-$h$ relation (where $x=Q/V$, $Q$ is the topological charge, and $V$ is the two dimensional volume) is found in the weak coupling region. The physical meaning of the position of the step-like behavior is discussed. The inversion approach is applied to weak coupling regions.

Masahiro Imachi; Hitoshi Kambayashi; Yasuhiko Shinno; Hiroshi Yoneyama

2006-01-23T23:59:59.000Z

274

Statistic inversion of multi-zone transition probability models for aquifer characterization in alluvial fans  

E-Print Network (OSTI)

Understanding the heterogeneity arising from the complex architecture of sedimentary sequences in alluvial fans is challenging. This paper develops a statistical inverse framework in a multi-zone transition probability approach for characterizing the heterogeneity in alluvial fans. An analytical solution of the transition probability matrix is used to define the statistical relationships among different hydrofacies and their mean lengths, integral scales, and volumetric proportions. A statistical inversion is conducted to identify the multi-zone transition probability models and estimate the optimal statistical parameters using the modified Gauss-Newton-Levenberg-Marquardt method. The Jacobian matrix is computed by the sensitivity equation method, which results in an accurate inverse solution with quantification of parameter uncertainty. We use the Chaobai River alluvial fan in the Beijing Plain, China, as an example for elucidating the methodology of alluvial fan characterization. The alluvial fan is divided...

Zhu, Lin; Gong, Huili; Gable, Carl; Teatini, Pietro

2015-01-01T23:59:59.000Z

275

High-Power Laser Pulse Recirculation for Inverse Compton Scattering-Produced Gamma-Rays  

SciTech Connect

Inverse Compton scattering of high-power laser pulses on relativistic electron bunches represents an attractive method for high-brightness, quasi-monoenergetic {gamma}-ray production. The efficiency of {gamma}-ray generation via inverse Compton scattering is severely constrained by the small Thomson scattering cross section. Furthermore, repetition rates of high-energy short-pulse lasers are poorly matched with those available from electron accelerators, resulting in low repetition rates for generated {gamma}-rays. Laser recirculation has been proposed as a method to address those limitations, but has been limited to only small pulse energies and peak powers. Here we propose and experimentally demonstrate an alternative method for laser pulse recirculation that is uniquely capable of recirculating short pulses with energies exceeding 1 J. Inverse Compton scattering of recirculated Joule-level laser pulses has a potential to produce unprecedented peak and average {gamma}-ray brightness in the next generation of sources.

Jovanovic, I; Shverdin, M; Gibson, D; Brown, C

2007-04-17T23:59:59.000Z

276

Three-Dimensional Inversion of Magnetotelluric Data on a PC, Methodology  

Open Energy Info (EERE)

Dimensional Inversion of Magnetotelluric Data on a PC, Methodology Dimensional Inversion of Magnetotelluric Data on a PC, Methodology and Applications to the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Three-Dimensional Inversion of Magnetotelluric Data on a PC, Methodology and Applications to the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: We describe here efforts in technology development to invert magnetotelluric (MT) data collected in geothermal settings for three-dimensional resistivity models using desktop PC's or small clusters. A finite difference scheme is utilized for the forward problem, with various options to compute the parameter Jacobians, and parameter step estimates are defined using an explicit Gauss-Newton step. The paper

277

Modeling the reactive inorganic solute distributions in the groundwater flow systems of the Hanford Site using inverse analytical modeling techniques.  

E-Print Network (OSTI)

??Inverse analytical techniques were used to model solute distributions and determine transport parameters for two flow systems in the Yakima Basalt subgroup at the Hanford (more)

Adamski, Mark Robert

2012-01-01T23:59:59.000Z

278

Nonperturbative ocean acoustic tomography inversion of 1000?km pulse propagation in the Pacific Ocean  

Science Journals Connector (OSTI)

A nonperturbative inversion was performed of acoustic tomographymeasurements made in the northeastern Pacific Ocean in July 1989 in which acoustic transmissions from a 250?Hz broadband source located near the sound?channel axis were recorded at a long vertical array of hydrophones 1000 km away. In contrast with a conventional inversion this nonperturbative inversion does not assume that travel times are linearly related to the sound?speed deviations from a background sound?speed model. The inversion process involved three steps: (1) Measured pulse travel times and the source and receiver locations were used to determine the range average of the equivalent symmetric sound?slowness profile. That part of the inversion used only curve fitting and Abel transforms and required independent (nontomographic) information only to help identify the pulse arrivals. (2) Under the assumption that the range dependence of sound speed was small we used the reciprocal of the range?averaged sound?slowness profile to approximate the range average of the sound?speed profile. (3) Constraining the sound speed below the sound?channel axis to match climatological data and neglecting the range dependence of sound speed below the sound?channel axis allowed us to estimate the range average of the sound?speed profile above the sound?channel axis. This inversion was compared with the range average of sound speed calculated from CTD measurements made during the experiment over a 10?day period. The agreement was good between 50? and 300?m depths but there were some disagreements near the surface and near the sound?channel axis.

R. Michael Jones; Bruce M. Howe; James A. Mercer; Robert C. Spindel; T. M. Georges

1994-01-01T23:59:59.000Z

279

Design of a 20MHz Transimpedance Low-pass Filter with an Adapted 3rd Order Inverse Chebyshev Response  

E-Print Network (OSTI)

of the blocks in the receiver chain. This work presents a new Transimpedance Amplifier (TIA) low-pass filter architecture which seeks to solve the out-of-band blocker problem of the existing architectures. A higher order filtering is embedded within the TIA...

Boakye, Emmanuel

2012-10-19T23:59:59.000Z

280

The Phase Inversion-based Coal-CO? Slurry (PHICCOS) feeding system : design, coupled multiscale analysis, and technoeconomic assessment  

E-Print Network (OSTI)

The continuous conveying of a solid feedstock like pulverized coal into a pressurized environment is a challenging task required in multiple industrial processes. Plants based on pressurized, entrained-flow gasifiers (EFG) ...

Botero, Cristina, Ph. D. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

Inverse scattering series for multiple attenuation: An example with surface and internal multiples  

SciTech Connect

A multiple attenuation method derived from an inverse scattering series is described. The inversion series approach allows a separation of multiple attenuation subseries from the full series. The surface multiple attenuation subseries was described and illustrated in Carvalho et al. (1991, 1992). The internal multiple attenuation method consists of selecting the parts of the odd terms that are associated with removing only multiply reflected energy. The method, for both types of multiples, is multidimensional and does not rely on periodicity or differential moveout, nor does it require a model of the reflectors generating the multiples. An example with internal and surface multiples will be presented.

Araujo, F.V. [PPPG/Federal Univ. of Bahia, Salvador (Brazil); Weglein, A.B. [Schlumberger Cambridge Research (United Kingdom); Carvalho, P.M. [Petrobras SA, Rio de Janeiro (Brazil); Stolt, R.H.

1994-12-31T23:59:59.000Z

282

Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale  

E-Print Network (OSTI)

We conducted three torsion-balance experiments to test the gravitational inverse-square law at separations between 9.53 mm and 55 micrometers, probing distances less than the dark-energy length scale $\\lambda_{\\rm d}=\\sqrt[4]{\\hbar c/\\rho_{\\rm d}}\\approx 85 \\mu$m. We find with 95% confidence that the inverse-square law holds ($|\\alpha| \\leq 1$) down to a length scale $\\lambda = 56 \\mu$m and that an extra dimension must have a size $R \\leq 44 \\mu$m.

D. J. Kapner; T. S. Cook; E. G. Adelberger; J. H. Gundlach; B. R. Heckel; C. D. Hoyle; H. E. Swanson

2006-11-14T23:59:59.000Z

283

Analysis of forward and inverse problems in chemical dynamics and spectroscopy  

SciTech Connect

The overall scope of this research concerns the development and application of forward and inverse analysis tools for problems in chemical dynamics and chemical kinetics. The chemical dynamics work is specifically associated with relating features in potential surfaces and resultant dynamical behavior. The analogous inverse research aims to provide stable algorithms for extracting potential surfaces from laboratory data. In the case of chemical kinetics, the focus is on the development of systematic means to reduce the complexity of chemical kinetic models. Recent progress in these directions is summarized below.

Rabitz, H. [Princeton Univ., NJ (United States)

1993-12-01T23:59:59.000Z

284

Inverse scattering transform for the focusing nonlinear Schrdinger equation with nonzero boundary conditions  

SciTech Connect

The inverse scattering transform for the focusing nonlinear Schrdinger equation with non-zero boundary conditions at infinity is presented, including the determination of the analyticity of the scattering eigenfunctions, the introduction of the appropriate Riemann surface and uniformization variable, the symmetries, discrete spectrum, asymptotics, trace formulae and the so-called theta condition, and the formulation of the inverse problem in terms of a Riemann-Hilbert problem. In addition, the general behavior of the soliton solutions is discussed, as well as the reductions to all special cases previously discussed in the literature.

Biondini, Gino [Department of Mathematics, State University of New York at Buffalo, Buffalo, New York 14260 (United States)] [Department of Mathematics, State University of New York at Buffalo, Buffalo, New York 14260 (United States); Kova?i?, Gregor [Department of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)] [Department of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)

2014-03-15T23:59:59.000Z

285

Inversion of TEM sounding data using the steepest descent and the conjugate gradients methods  

E-Print Network (OSTI)

for la er conductivities Intensively covered case Figure 2 shows four test models (Ml-M4) and their associated TEM responses used for the two-parameter inversion. For both of the SD and CG methods, the first TEM response was intensively covered... for la er conductivities Intensively covered case Figure 2 shows four test models (Ml-M4) and their associated TEM responses used for the two-parameter inversion. For both of the SD and CG methods, the first TEM response was intensively covered...

Alsabti, Abdallah S

2012-06-07T23:59:59.000Z

286

Final Report: Detection and Characterization of Underground Facilities by Stochastic Inversion and Modeling of Data from the New Generation of Synthetic Aperture Satellites  

SciTech Connect

Many clandestine development and production activities can be conducted underground to evade surveillance. The purpose of the study reported here was to develop a technique to detect underground facilities by broad-area search and then to characterize the facilities by inversion of the collected data. This would enable constraints to be placed on the types of activities that would be feasible at each underground site, providing a basis the design of targeted surveillance and analysis for more complete characterization. Excavation of underground cavities causes deformation in the host material and overburden that produces displacements at the ground surface. Such displacements are often measurable by a variety of surveying or geodetic techniques. One measurement technique, Interferometric Synthetic Aperture Radar (InSAR), uses data from satellite-borne (or airborne) synthetic aperture radars (SARs) and so is ideal for detecting and measuring surface displacements in denied access regions. Depending on the radar frequency and the acquisition mode and the surface conditions, displacement maps derived from SAR interferograms can provide millimeter- to centimeter-level measurement accuracy on regional and local scales at spatial resolution of {approx}1-10 m. Relatively low-resolution ({approx}20 m, say) maps covering large regions can be used for broad-area detection, while finer resolutions ({approx}1 m) can be used to image details of displacement fields over targeted small areas. Surface displacements are generally expected to be largest during or a relatively short time after active excavation, but, depending on the material properties, measurable displacement may continue at a decreasing rate for a considerable time after completion. For a given excavated volume in a given geological setting, the amplitude of the surface displacements decreases as the depth of excavation increases, while the area of the discernable displacement pattern increases. Therefore, the ability to detect evidence for an underground facility using InSAR depends on the displacement sensitivity and spatial resolution of the interferogram, as well as on the size and depth of the facility and the time since its completion. The methodology development described in this report focuses on the exploitation of synthetic aperture radar data that are available commercially from a number of satellite missions. Development of the method involves three components: (1) Evaluation of the capability of InSAR to detect and characterize underground facilities ; (2) inversion of InSAR data to infer the location, depth, shape and volume of a subsurface facility; and (3) evaluation and selection of suitable geomechanical forward models to use in the inversion. We adapted LLNL's general-purpose Bayesian Markov Chain-Monte Carlo procedure, the 'Stochastic Engine' (SE), to carry out inversions to characterize subsurface void geometries. The SE performs forward simulations for a large number of trial source models to identify the set of models that are consistent with the observations and prior constraints. The inverse solution produced by this kind of stochastic method is a posterior probability density function (pdf) over alternative models, which forms an appropriate input to risk-based decision analyses to evaluate subsequent response strategies. One major advantage of a stochastic inversion approach is its ability to deal with complex, non-linear forward models employing empirical, analytical or numerical methods. However, while a geomechanical model must incorporate adequate physics to enable sufficiently accurate prediction of surface displacements, it must also be computationally fast enough to render the large number of forward realizations needed in stochastic inversion feasible. This latter requirement prompted us first to investigate computationally efficient empirical relations and closed-form analytical solutions. However, our evaluation revealed severe limitations in the ability of existing empirical and analytical forms to predict deformations from undergro

Foxall, W; Cunningham, C; Mellors, R; Templeton, D; Dyer, K; White, J

2012-02-27T23:59:59.000Z

287

Design wiki: a system for design sharing  

E-Print Network (OSTI)

Design wiki: a system for design sharing Wael A. Abdelhameed, Yoshihiro Kobayashi #12;Wael of Bahrain. His research areas are 3D Modeling Systems, Computing Architecture, Virtual Reality, Design Process, Visual Design Thinking and Digital and Manual Media Interaction. Yoshihiro Kobayashi is a Faculty

288

Institute of Design Institute of Design  

E-Print Network (OSTI)

Institute of Design Institute of Design 350 N. LaSalle St. Chicago, IL 60610 312.595.4900 main 312.595.4906 graduate study information 312.595.4901 fax design@id.iit.edu www.id.iit.edu Dean: Patrick F. Whitney The Institute of Design (ID) is defined by a legacy of experimentation joined with unique academic programs

Heller, Barbara

289

College of Design ID Interior Design  

E-Print Network (OSTI)

College of Design ID Interior Design KEY: # = new course * = course changed = course dropped University of Kentucky 2013-2014 Undergraduate Bulletin 1 ID 101 INTRODUCTION TO INTERIOR DESIGN. (1) An introduction to the profession of Interior Design: historical perspective, career specializations, and career

MacAdam, Keith

290

Biosystem Dynamics & Design | EMSL  

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

Biosystem Dynamics & Design Overview Atmospheric Aerosol Systems Biosystem Dynamics & Design Energy Materials & Processes Terrestrial & Subsurface Ecosystems Biosystem Dynamics &...

291

Coherent Phonon-Grain Boundary Scattering in Silicon Inverse Opals Bibek R. Parajuli,,  

E-Print Network (OSTI)

in the structure. The corresponding material thermal conductivity is in the range 5-12 W/mK and has an anomalous T1 the lattice structure resulting in significant increase in thermal resistance. At microscopic length scales thermal conductivity of the material. Previous theoretical work on thermal transport in inverse opals12

Braun, Paul

292

Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion approach  

E-Print Network (OSTI)

Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion of terrestrial carbon (C) sequestration is critical for the success of any policies geared toward stabilizing. Ellsworth, A. Finzi, J. Lichter, and W. H. Schlesinger, Sustainability of terrestrial carbon sequestration

DeLucia, Evan H.

293

Anisotropic inversion of refracted waves in vertical cable data in the presence of dip  

E-Print Network (OSTI)

the anisotropic parameters of these shales in situ. In these studies, seismic lines were laid out parallelAnisotropic inversion of refracted waves in vertical cable data in the presence of dip Hejie Wang1 isotropic and anisotropic media. Two sets of transversely isotropic models are used to analyse the azimuthal

Edinburgh, University of

294

The Asperity-deformation Model Improvements and Its Applications to Velocity Inversion  

E-Print Network (OSTI)

the data to within first-order approximation, some systematic misfits exist as a result of using the rigid-host solution, whereas compliant-host inversion returns smaller and random misfits, yet out-of-range parameter estimates. These problems indicate...

Bui, Hoa Q.

2010-01-16T23:59:59.000Z

295

Building starting model for full waveform inversion from wide-aperture data by stereotomography  

E-Print Network (OSTI)

Building starting model for full waveform inversion from wide-aperture data by stereotomography CGG Veritas, Massy, France; 3 LGIT - UJF - CNRS, France Abstract Building reliable starting model). In this study, we assess the stereotomography as a tool to build reliable starting model for frequency

Vallée, Martin

296

Durability Assessment of an Arch Dam using Inverse Analysis with Neural Networks and High Performance Computing.  

E-Print Network (OSTI)

the viscoelastic parameters; 3D FEM analysis using High Performance Computing (parallel and vector features) to run Performance Computing. E. M. R. Fairbairn, E. Goulart, A. L. G. A. Coutinho, N. F. F. Ebecken COPPEDurability Assessment of an Arch Dam using Inverse Analysis with Neural Networks and High

Coutinho, Alvaro L. G. A.

297

Particle Physics Implications of a Recent Test of the Gravitational Inverse Square Law  

E-Print Network (OSTI)

We use data from our recent search for violations of the gravitational inverse-square law to constrain dilaton, radion and chameleon exchange forces as well as arbitrary vector or scalar interactions. We test the interpretation of the PVLAS effect and a conjectured ``fat graviton'' scenario and constrain the $\\gamma_5$ couplings of pseuodscalar bosons and arbitrary power-law interactions.

E. G. Adelberger; B. R. Heckel; S. Hoedl; C. D. Hoyle; D. J. Kapner; A. Upadhye

2007-02-07T23:59:59.000Z

298

Quantification of Nanoscale Density Fluctuations in Biological Cells/Tissues: Inverse Participation Ratio (IPR) Analysis of  

E-Print Network (OSTI)

Ratio (IPR) Analysis of Transmission Electron Microscopy Images and Implications for Early-Stage Cancer analysis of the inverse participation ratio (IPR) of the eigenfunctions of these optical lattices at the nanoscales. First, the IPR analysis is validated in experiments with models of disordered systems fabricated

Pradhan, Prabhakar

299

ApJ (submitted) Synchrotron self-inverse Compton radiation from reverse shock on  

E-Print Network (OSTI)

ApJ (submitted) Synchrotron self-inverse Compton radiation from reverse shock on GRB120326A Yuji Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan 6 Center for the Exploration of the Origin-ku, Nagoya, Aichi 464- 8601, Japan 8 Division of Particle and Astrophysical Science, Graduate School

Pak, Soojong

300

Mapping microphytobenthos biomass by non-linear inversion of visible-infrared hyperspectral images  

E-Print Network (OSTI)

- 1 - Mapping microphytobenthos biomass by non-linear inversion of visible-infrared hyperspectral-Philippe.Combe@chimie.univ-nantes.fr Abstract This study presents an innovative approach to map microphytobenthos biomass and fractional cover to microscale intimate mixtures. This prevents the use of classical linear unmixing models to retrieve biomass

Combe, Jean-Philippe

Note: This page contains sample records for the topic "inverse design cid" 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

Computer Physics Communications 66(1991) 243-258 Function parametrization: a fast inverse mapping method  

E-Print Network (OSTI)

1 Computer Physics Communications 66(1991) 243-258 Function parametrization: a fast inverse mapping (FP) is a method to invert computer models that map physical parameters describing the state that requires little computing time to evaluate. The major advantages of FP over other analysis methods are

van Milligen, Boudewijn

302

First-order disorder-driven transition and inverse melting of the vortex lattice  

E-Print Network (OSTI)

`inverse' melting behavior. ? 2001 Published by Elsevier Science B.V. Keywords: Type-II superconductivity-order transition (FOT) [1±5] whereas at low temperatures the ordered vortex lattice transforms into a disordered open questions in the phase diagram of HTS is the thermodynamic nature of the disorder-dri- ven

Zeldov, Eli

303

Selection of desired dynamics for Dynamic Inversion controlled re-entry vehicles  

E-Print Network (OSTI)

-shaping compensator that affects the closed-loop response of the entire system. This paper attempts to quantify the particular form of desired dynamics that produces the best overall closed-loop performance and robustness in a Dynamic Inversion flight controller...

Georgie, Jennifer Anne

2012-06-07T23:59:59.000Z

304

Inverse modeling of surface emissions for local pollution: A new methodology applied to academic test cases  

E-Print Network (OSTI)

Inverse modeling of surface emissions for local pollution: A new methodology applied to academic; (2) LISA Creteil France Needs: Optimize surface emissions using daily recorded ozone and NOX by PRIMEQUAL2, program of the french ministry of environment Firstguess emissions inventory for the Paris

Menut, Laurent

305

Inverse modeling of European CH4 emissions 20012006 P. Bergamaschi,1  

E-Print Network (OSTI)

Inverse modeling of European CH4 emissions 2001­2006 P. Bergamaschi,1 M. Krol,2,3,4 J. F. Meirink,5] European CH4 emissions are estimated for the period 2001­2006 using a four dimensional variational (4DVAR/ESRL network. The available observations mainly provide information on the emissions from northwest Europe (NWE

Haak, Hein

306

Market making with an inverse Kelly strategy E. Noon* and W. Knottenbelt**  

E-Print Network (OSTI)

229 Market making with an inverse Kelly strategy E. Noon* and W. Knottenbelt** *Imperial College Kensington Campus, London, SW7 2AZ. wjk@doc.ic.ac.uk Abstract. Kelly's celebrated staking system calculates the optimal fraction of wealth to bet on each of a series of favourable bets. We previously extended Kelly

Knottenbelt, William J.

307

Coding into a source: an inverse rate-distortion Anant Sahai  

E-Print Network (OSTI)

Sahai (UC Berkeley) Inverse Rate Distortion Sep 27, 2006 1 / 27 #12;Suppose the aliens landed. . . Your Distortion Sep 27, 2006 2 / 27 #12;Suppose the aliens landed. . . Your mission: reverse 27, 2006 2 / 27 #12;Suppose the aliens landed. . . Your mission: reverse

Sahai, Anant

308

Limitations of polynomial chaos expansions in the Bayesian solution of inverse problems  

E-Print Network (OSTI)

expensive, especially in high-dimensional problems. Polynomial chaos expansions (PCE) and generalized PCE,14,20,29]) which can be used to reduce the cost of Bayesian inverse problems [2,16­18,21]. The PCE leads), the surrogate posterior can be very different from the posterior and PCE-based sampling is either inaccurate

Chorin, Alexandre J.

309

A modified R1 R1 method for helioseismic rotation inversions  

Science Journals Connector (OSTI)

......forskningsfond, Institut for Fysik og Astronomi, Aarhus...to linear perturbation theory, which is an excellent...the advantage of the basic ~I ~I concept. We...still be superior to a basic ~1 ~1 inversion, as...described by first-order theory). Sekii's original......

F. P. Pijpers; M. J. Thompson

1996-03-11T23:59:59.000Z

310

Inverse Beta Decay in a Nonequilibrium Antineutrino Flux from a Nuclear Reactor  

E-Print Network (OSTI)

The evolution of the reactor antineutrino spectrum toward equilibrium above the inverse beta-decay threshold during the reactor operating period and the decay of residual antineutrino radiation after reactor shutdown are considered. It is found that, under certain conditions, these processes can play a significant role in experiments seeking neutrino oscillations.

V. I. Kopeikin; L. A. Mikaelyan; V. V. Sinev

2001-10-23T23:59:59.000Z

311

INVERSE PROBLEMS FOR A CLASS OF MEASURE DEPENDENT DYNAMICAL H. T. BANKS  

E-Print Network (OSTI)

of polymers and rubber, and polarization in dielectric materials. We develop an inverse problem framework pathways for virus production. These delays represent lags between acute infection of cells and the initiation of vi- ral production as well as between productive acute infection and chronic infection (e

312

Stationary IPA Estimates for Non-Smooth G/G/1/ Functionals via Palm Inversion and  

E-Print Network (OSTI)

Stationary IPA Estimates for Non-Smooth G/G/1/ Functionals via Palm Inversion and Level, the derivative of J with respect to . To this end, we use Infinitesimal Perturbation Analysis (IPA), a method on IPA. Alternative methods have been used to estimate derivatives, namely Smooth Perturbation Analysis

Paris-Sud XI, Université de

313

Bayesian analysis of the scatterometer wind retrieval inverse problem: some new approaches  

E-Print Network (OSTI)

the solution of this inverse problem. We apply our methods to both data assimilation, where we have, Birmingham B4 7ET, UK Summary. The retrieval of wind vectors from satellite scatterometers is a non the size of the data set can become prohibitively large. We contrast the sampling results

314

Inexact range-space Krylov solvers for linear systems arising from inverse problems  

E-Print Network (OSTI)

is crucial in data assimilation appli- cations and other inverse problems. Secondly, it is shown.1) and methods of the type we just men- tioned finds its origin in (but is not limited by) the data assimilation. Keywords: Krylov methods, linear systems, inexact matrix products, data assimila- tion. 1 Introduction

Toint, Philippe

315

Inverse-synthetic-aperture imaging of trees over a ground plane  

SciTech Connect

Recent data collections with the Sandia VHF-UHF synthetic-aperture radar have yielded surprising results; trees appear brighter in the images than expected! In an effort to understand this phenomenon, various small trees have been measured on the Sandia folded compact range with the inverse-synthetic-aperture imaging system. A compilation of these measurements is contained in this report.

Zittel, D.H.; Brock, B.C.; Littlejohn, J.H.; Patitz, W.E.

1995-11-01T23:59:59.000Z

316

Mesoporous composite cathode materials prepared from inverse micelle structures for high  

E-Print Network (OSTI)

active materials in LIBs. Manganese oxide-based compounds are particularly attrac- tive as cathodes owingMesoporous composite cathode materials prepared from inverse micelle structures for highCoO2) is the most common active material.1 However, since natural deposits of cobalt are scarce

Cao, Guozhong

317

Inverse Problems in Science and Engineering Vol. 00, No. 00, July 2004, 125  

E-Print Network (OSTI)

of the solar Bremsstrahlung inverse problem: model dependence and implementation issues A.M.Massone M problem in solar plasma physics by means of an `ad hoc' imple- mentation of the Tikhonov regularization, an application to a real observationrecorded by the NASA mission 'Reuven Ramaty High Energy Solar Spectroscopic

Piana, Michele

318

Inverse Problems in Transport and Diffusion Theory with Applications in Optical Tomography  

E-Print Network (OSTI)

problem related to the scattering-free atmospheric radiative transport equation. The inverse problem aims the coefficient and the source term of the transport equation) from wavenumber-dependent boundary radiation transport equation as the forward model of light propagation in tissues. We show by numerical examples

Ren, Kui

319

An accurate solver for forward and inverse transport. Francois Monard and Guillaume Bal  

E-Print Network (OSTI)

(radiative transfer) equations numerically. Our main objective is to address the inverse transport problem theory. 1 Introduction The radiative transfer (linear Boltzmann or linear transport) equation finds. Although the methodology might not be the fastest way to solve transport equations, its physical accuracy

Bal, Guillaume

320

An inverse correlation between loop length and stability in a four-helix-bundle protein  

E-Print Network (OSTI)

their intrinsic func- tionality upon their new environmental context: the calcium-binding activity of a loop has the molten globule behavior of apo- - lactalbumin in the absence of calcium [18]. Conversely, loops have beenAn inverse correlation between loop length and stability in a four-helix-bundle protein Athena D

Mochrie, Simon

Note: This page contains sample records for the topic "inverse design cid" 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

Experimental Measurement of Lateral Transport in the Inversion Layer of Silicon Heterojunction Solar Cells  

E-Print Network (OSTI)

]. Furthermore, the a-Si:H emitter and back surface field depositions are performed at low temperatures, which-type emitter configuration that is commonly used, the c-Si/a-Si:H heterointerface presents a valence band in the inversion layer. II. EXPERIMENTAL The experimental structure used was a SHJ emitter, in which an intrinsic a-Si:H

Atwater, Harry

322

Asking for Help Using Inverse Semantics Author Names Omitted for Anonymous Review. Paper-ID 69  

E-Print Network (OSTI)

Asking for Help Using Inverse Semantics Author Names Omitted for Anonymous Review. Paper-ID 69 an approach for enabling a robot to recover from failures by communicating its need for specific help targeted spoken-language requests for help such as "Please give me the white table leg that is on the black

Tellex, Stefanie

323

Volume Currents in Forward and Inverse Magnetoencephalographic Simulations Using Realistic Head Models  

E-Print Network (OSTI)

Volume Currents in Forward and Inverse Magnetoencephalographic Simulations Using Realistic Head of magnetoencephalographic MEG forward or in- verse simulations in realistic head models. We verify the accu- racy of our, in an inhomoge- neous, nonspherical realistic head model, the magnetic field normal to the MEG detector due

Utah, University of

324

Evaluating the effect of network density and geometric distribution on kinematic source inversion models  

Science Journals Connector (OSTI)

......function as slip velocity function. We test three different cases of station network...Our results show: (1) single station tests suggest that it may be possible to obtain...for source inversion. (2) Multistation tests show that the quality of the inverted source......

Youbing Zhang; Luis A. Dalguer; Seok Goo Song; John Clinton; Domenico Giardini

2015-01-01T23:59:59.000Z

325

14ZH-2003-05 Hydrogel Nanoparticle Dispersins with Inverse Thermoreversible Gelation  

E-Print Network (OSTI)

14ZH-2003-05 Hydrogel Nanoparticle Dispersins with Inverse Thermoreversible Gelation Hydrogels have by entrapping a colloidal array inside a gel, by covalently bonding self-assembled nanoparticles into a network nanoparticles that can form a physically bonded nanoparticle network above a gelation temperature. The gel

Mohanty, Saraju P.

326

The Ice Cream Cone Model for Inversing Geometrical Properties of Halo Coronal Mass Ejections  

E-Print Network (OSTI)

the front half ellipse produced by the cone part when the angle of the central axis of the ice cream coneThe Ice Cream Cone Model for Inversing Geometrical Properties of Halo Coronal Mass Ejections Xue Pu recently that most of halo coronal mass ejections (CMEs) may be formed by an ice cream cone-like shell

Zhao, Xuepu

327

Inverse scattering for frequency-scanned full-field optical coherence tomography  

E-Print Network (OSTI)

Inverse scattering for frequency-scanned full-field optical coherence tomography Daniel L. Marks-field optical coherence tomography (OCT) is able to image an entire en face plane of scatterers simulta- neously: 100.3010, 110.4500. 1. INTRODUCTION The capabilities of optical coherence tomography1,2 (OCT

Bhargava, Rohit

328

NREL experiments show that disordered inverse opals significantly scatter and trap near-infrared light, with  

E-Print Network (OSTI)

NREL experiments show that disordered inverse opals significantly scatter and trap near-infrared wavelengths in the near-infrared (NIR), which is important to a number of technologies. This discovery.neale@nrel.gov Reference: N.R. Neale, B.G. Lee, S.H. Kang, and A.J. Frank."Near-Infrared Light Trapping in Disordered

329

Hysteresis Modeling and Inverse Feedforward Control of an AFM Piezoelectric Scanner Based on Nano Images  

E-Print Network (OSTI)

Hysteresis Modeling and Inverse Feedforward Control of an AFM Piezoelectric Scanner Based on Nano of micro/nano technology. As a critical part of AFM system, the piezoelectric scanner exists many defects in this paper possess a good performance for AFM nano imaging. Index Terms-- Hysteresis modeling, feedforward

Li, Yangmin

330

Frequency Moments Inverse Problem and Maximum (Shannon vs. R enyi-Tsallis) Entropy  

E-Print Network (OSTI)

) maximization of Shannon's entropy (MaxEnt), b) maximization of R#19;enyi-Tsallis entropy (maxTent). ConcerningEnt 4 1.2 Aims 5 2 Frequency moment constraints 5 2.1 Characteristics of MaxEnt choice 6 2.2 Maximum RFrequency Moments Inverse Problem and Maximum (Shannon vs. R#19;enyi-Tsallis) Entropy #3; A case

331

Characterization of heterogeneous near-surface materials by joint 2D inversion of dc resistivity and seismic data  

E-Print Network (OSTI)

Characterization of heterogeneous near-surface materials by joint 2D inversion of dc resistivity materials by joint 2D inversion of dc resistivity and seismic data, Geophys. Res. Lett., 30(13), 1658, doi electrical resistivity and seismic compressional (P) wave velocity in heterogeneous near-surface materials

Meju, Max

332

A novel optimization-based pole-figure inversion method: comparison with WIMV and maximum entropy methods  

Science Journals Connector (OSTI)

An optimization-based pole-figure inversion method is presented that utilizes the orientation distribution function gradient for conditional control of the solution. The novel pole-figure inversion method, coined the hybrid -seminorm minimization, is empirically shown to be versatile, general and robust in the presence of simulated experimental errors.

Bernier, J.V.

2006-09-12T23:59:59.000Z

333

K-space reconstruction of magnetic resonance inverse imaging (K-InI) of human visuomotor systems  

E-Print Network (OSTI)

MRI InI Visual MRI Neuroimaging K-InI Inverse solution MEG EEG Electroencephalography channels of a radio-frequency coil array, magnetic resonance inverse imaging (InI) can achieve ultra. Mathematically, the InI reconstruction is a generalization of parallel MRI (pMRI), which includes image space

334

Florence, 28/02/2011: Two applied inverse problems: Introduction 1 -Problem #1: Studying the protein fold via NMR constraints.  

E-Print Network (OSTI)

the protein fold via NMR constraints. In collaboration with the CERM (Centre for Magnetic Resonance problems. #12;Florence, 28/02/2011: Two applied inverse problems: The problem of protein folding 2 H CCN) Backbone #12;Florence, 28/02/2011: Two applied inverse problems: The problem of protein folding 3 Genoma

Pedicini, Marco

335

Factorial design preparation of transparent conducting oxide thin films  

Science Journals Connector (OSTI)

Transparent and conducting properties of Cd2SnO4 films deposited onto glass substrates by the dip coating technique have been obtained using a 24 factorial design. All films were well adhered onto their substrates, presented porous morphology and inverse spinel structure. Statistical factorial design analysis showed that only substrate withdrawal rate and precursor solution concentration had significant effects on average transmission of the films. Cumulative probability graphs of factorial design model coefficients showed that none of the factor levels have significant effects on resistivity. However the films presented significantly higher resistivities using low withdrawal rates and low concentration levels. This indicates resistivity is a more complex function of the factor variables than transmission. From the factorial design experiments and statistical analysis of their results a highest average transmission of 88% and lowest resistivity of 2.43נ10?4? m were found.

Clia M. Ronconi; Oswaldo L. Alves; Roy E. Bruns

2009-01-01T23:59:59.000Z

336

Single- and coupled-channel radial inverse scattering with supersymmetric transformations  

E-Print Network (OSTI)

The present status of the coupled-channel inverse-scattering method with supersymmetric transformations is reviewed. We first revisit in a pedagogical way the single-channel case, where the supersymmetric approach is shown to provide a complete solution to the inverse-scattering problem. A special emphasis is put on the differences between conservative and non-conservative transformations. In particular, we show that for the zero initial potential, a non-conservative transformation is always equivalent to a pair of conservative transformations. These single-channel results are illustrated on the inversion of the neutron-proton triplet eigenphase shifts for the S and D waves. We then summarize and extend our previous works on the coupled-channel case and stress remaining difficulties and open questions. We mostly concentrate on two-channel examples to illustrate general principles while keeping mathematics as simple as possible. In particular, we discuss the difference between the equal-threshold and different-threshold problems. For equal thresholds, conservative transformations can provide non-diagonal Jost and scattering matrices. Iterations of such transformations are shown to lead to practical algorithms for inversion. A convenient technique where the mixing parameter is fitted independently of the eigenphases is developed with iterations of pairs of conjugate transformations and applied to the neutron-proton triplet S-D scattering matrix, for which exactly-solvable matrix potential models are constructed. For different thresholds, conservative transformations do not seem to be able to provide a non-trivial coupling between channels. In contrast, a single non-conservative transformation can generate coupled-channel potentials starting from the zero potential and is a promising first step towards a full solution to the coupled-channel inverse problem with threshold differences.

Daniel Baye; Jean-Marc Sparenberg; Andrey M Pupasov-Maksimov; Boris F Samsonov

2014-06-13T23:59:59.000Z

337

A fast inverse consistent deformable image registration method based on symmetric optical flow computation  

Science Journals Connector (OSTI)

Deformable image registration is widely used in various radiation therapy applications including daily treatment planning adaptation to map planned tissue or dose to changing anatomy. In this work, a simple and efficient inverse consistency deformable registration method is proposed with aims of higher registration accuracy and faster convergence speed. Instead of registering image I to a second image J, the two images are symmetrically deformed toward one another in multiple passes, until both deformed images are matched and correct registration is therefore achieved. In each pass, a delta motion field is computed by minimizing a symmetric optical flow system cost function using modified optical flow algorithms. The images are then further deformed with the delta motion field in the positive and negative directions respectively, and then used for the next pass. The magnitude of the delta motion field is forced to be less than 0.4 voxel for every pass in order to guarantee smoothness and invertibility for the two overall motion fields that are accumulating the delta motion fields in both positive and negative directions, respectively. The final motion fields to register the original images I and J, in either direction, are calculated by inverting one overall motion field and combining the inversion result with the other overall motion field. The final motion fields are inversely consistent and this is ensured by the symmetric way that registration is carried out. The proposed method is demonstrated with phantom images, artificially deformed patient images and 4D-CT images. Our results suggest that the proposed method is able to improve the overall accuracy (reducing registration error by 30% or more, compared to the original and inversely inconsistent optical flow algorithms), reduce the inverse consistency error (by 95% or more) and increase the convergence rate (by 100% or more). The overall computation speed may slightly decrease, or increase in most cases because the new method converges faster. Compared to previously reported inverse consistency algorithms, the proposed method is simpler, easier to implement and more efficient.

Deshan Yang; Hua Li; Daniel A Low; Joseph O Deasy; Issam El Naqa

2008-01-01T23:59:59.000Z

338

Design Guidelines INTRODUCTION  

E-Print Network (OSTI)

Design Guidelines March 2005 #12;INTRODUCTION INTENT The Boise State University (BSU) Design Guidelines are intended for the use by design professionals as a resource to facilitate the design of BSU design, construction and operation. The intent of these guidelines is to provide the information

Barrash, Warren

339

Making Argumentation Serve Design  

E-Print Network (OSTI)

9 Making Argumentation Serve Design Gerhard Fischer University ofColorado Andreas C. Lemke ALCATEL scientist interesled in design and design suppon S\\"Stems, particularly in domain-oriented design environmenlS and how they make :irgumemation serve design by supporting reflection-in-action; he

Fischer, Gerhard

340

Whither design space?  

Science Journals Connector (OSTI)

Design space exploration is a long-standing focus in computational design research. Its three main threads are accounts of designer action, development of strategies for amplification of designer action in exploration, and discovery of computational ... Keywords: Design Space Exploration, Knowledge Representation, Search, State Space, Typed Feature Structures

Robert F. Woodbury; Andrew L. Burrow

2006-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

Final Report: Improved Site Characterization And Storage Prediction Through Stochastic Inversion Of Time-Lapse Geophysical And Geochemical Data  

SciTech Connect

During the last months of this project, our project activities have concentrated on four areas: (1) performing a stochastic inversion of pattern 16 seismic data to deduce reservoir bulk/shear moduli and density; the need for this inversion was not anticipated in the original scope of work, (2) performing a stochastic inversion of pattern 16 seismic data to deduce reservoir porosity and permeability, (3) complete the software needed to perform geochemical inversions and (4) use the software to perform stochastic inversion of aqueous chemistry data to deduce mineral volume fractions. This report builds on work described in progress reports previously submitted (Ramirez et al., 2009, 2010, 2011 - reports fulfilled the requirements of deliverables D1-D4) and fulfills deliverable D5: Field-based single-pattern simulations work product. The main challenge with our stochastic inversion approach is its large computational expense, even for single reservoir patterns. We dedicated a significant level of effort to improve computational efficiency but inversions involving multiple patterns were still intractable by project's end. As a result, we were unable to fulfill Deliverable D6: Field-based multi-pattern simulations work product.

Ramirez, A; Mcnab, W; Hao, Y; White, D; Johnson, J

2011-04-14T23:59:59.000Z

342

3-D Inversion Of Borehole-To-Surface Electrical Data Using A  

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 Page Edit History Facebook icon Twitter icon » 3-D Inversion Of Borehole-To-Surface Electrical Data Using A Back-Propagation Neural Network Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3-D Inversion Of Borehole-To-Surface Electrical Data Using A Back-Propagation Neural Network Details Activities (0) Areas (0) Regions (0) Abstract: The "fluid-flow tomography", an advanced technique for geoelectrical survey based on the conventional mise-a-la-masse measurement, has been developed by Exploration Geophysics Laboratory at the Kyushu University. This technique is proposed to monitor fluid-flow behavior

343

Building accurate initial models using gain functions for waveform inversion in the Laplace domain  

E-Print Network (OSTI)

We suggest an initial model building technique using time gain functions in the Laplace domain. Applying the gain expressed as a power of time is equivalent to taking the partial derivative of the Laplace-domain wavefield with respect to a damping constant. We construct an objective function, which minimizes the logarithmic differences between the gained field data and the partial derivative of the modeled data with respect to the damping constant. We calculate the modeled wavefield, the partial derivative wavefield, and the gradient direction in the Laplace domain using the analytic Green's function starting from a constant velocity model. This is an efficient method to generate an accurate initial model for a following Laplace-domain inversion. Numerical examples using two marine field datasets confirm that a starting model updated once from a scratch using the gradient direction calculated with the proposed method can be successfully used for a subsequent Laplace-domain inversion.

Wansoo Ha; Changsoo Shin

2014-08-20T23:59:59.000Z

344

Renormalization of the strongly attractive inverse square potential: Taming the singularity  

E-Print Network (OSTI)

Quantum anomalies in the inverse square potential are well known and widely investigated. Most prominent is the unbounded increase in oscillations of the particle's state as it approaches the origin when the attractive coupling parameter is greater than the critical value of 1/4. Due to this unphysical divergence in oscillations, we are proposing that the interaction gets screened at short distances making the coupling parameter acquire an effective (renormalized) value that falls within the weak range 0 to 1/4. This prevents the oscillations form growing without limit giving a lower bound to the energy spectrum and forcing the Hamiltonian of the system to be self-adjoint. Technically, this translates into a regularization scheme whereby the inverse square potential is replaced near the origin by another that has the same singularity but with a weak coupling strength. Here, we take the Eckart as the regularizing potential and obtain the corresponding solutions (discrete bound states and continuum scattering states).

A. D. Alhaidari

2014-06-14T23:59:59.000Z

345

Absorption of laser light in overdense plasmas by sheath inverse bremsstrahlung  

SciTech Connect

The original sheath inverse bremsstrahlung model [P. J. Catto and R. M. More, 1977] is modified by including the vxB term in the equation of motion. It is shown that the present results axe significantly different from those derived without the vxB term. The vxB term is also important in interpreting the absorption mechanism. If the vxB term were neglected, the absorption of the light would be incorrectly interpreted as an increase in the transverse electron temperature. This would violate the conservation of the transverse components of the canonical momentum, in the case of a normally incident laser light. It is also shown that both the sheath inverse bremsstrahlung and the anomalous skin effect are limiting cases of the same collisionless absorption mechanism. Finally, results from PIC plasma simulations are compared with the absorption coefficient calculated from the linear theory.

Yang, T.Y.B.; Kruer, W.L.; More, R.M.

1994-11-01T23:59:59.000Z

346

PAM-PAA microgel inverse opal photonic crystal and pH response  

Science Journals Connector (OSTI)

The colloidal crystal template or opal with a closed-packed face-centered cubic (fcc) lattice was prepared from monodisperse polystyrene (PS) spheres by vertical sedimentation. The template provided void space for infiltration of monomer precursor composed of acrylate acid, acrylamide and ammonium persulfate, as well as microgel from the subsequent copolymerization. The sample was immersed in dimethylbenzene for completely removing PS spheres to form PAM inverse opal hydrogels (IOHPAM) or PAM/PAA inverse opal hydrogels (IOHPAM/PAA) photonic crystals. The PS spheres were replaced by air spheres, which interconnected each other through the windows. The study of responses to pH show that there are two peaks for both IOHPAM and IOHPAM/PAA films, but the IOHPAM/PAA peaks shift to higher pH, and the peaks are independent with the AA content.

Yong Qiang He; Xiao Dong Wang; Jian Ying Wang; Yan Feng; Yong Qiang Zhao; Xiu Dong You

2007-01-01T23:59:59.000Z

347

Spectroscopy of Double-Beta and Inverse-Beta Decays from 100Mo for Neutrinos  

E-Print Network (OSTI)

Spectroscopic studies of two beta-rays from 100Mo are shown to be of potential interest for investigating both the Majorana neutrino mass by neutrinoless double beta-decay and low energy solar neutrino's by inverse beta-decay. With a multi-ton 100Mo detector, coincidence studies of correlated beta-beta from neutrinoless double beta-decay, together with the large Q value, permit identification of the neutrino-mass term with a sensitivity of ~ 0.03 eV. Correlation studies of the inverse beta and the successive beta-decay of 100Tc, together with the large capture rates for low energy solar neutrino's, make it possible to detect in realtime individual low energy solar neutrino in the same detector.

H. Ejiri; J. Engel; R. Hazama; P. Krastev; N. Kudomi; R. G. H. Robertson

1999-11-20T23:59:59.000Z

348

Strategy for the inversion of Hinode spectropolarimetric measurements in the quiet Sun  

E-Print Network (OSTI)

In this paper we propose an inversion strategy for the analysis of spectropolarimetric measurements taken by {\\em Hinode} in the quiet Sun. The spectropolarimeter of the Solar Optical Telescope aboard {\\em Hinode} records the Stokes spectra of the \\ion{Fe}{i} line pair at 630.2 nm with unprecendented angular resolution, high spectral resolution, and high sensitivity. We discuss the need to consider a {\\em local} stray-light contamination to account for the effects of telescope diffraction. The strategy is applied to observations of a wide quiet Sun area at disk center. Using these data we examine the influence of noise and initial guess models in the inversion results. Our analysis yields the distributions of magnetic field strengths and stray-light factors. They show that quiet Sun internetwork regions consist mainly of hG fields with stray-light contaminations of about 0.8.

D. Orozco Suarez; L. R. Bellot Rubio; J. C. del Toro Iniesta; S. Tsuneta; B. W. Lites; K. Ichimoto; Y. Katsukawa; S. Nagata; T. Shimizu; R. A. Shine; Y. Suematsu; T. D. Tarbell; A. M. Title

2007-09-13T23:59:59.000Z

349

Computation & design for nanophotonics  

E-Print Network (OSTI)

The versatility of computational design as an alternative to design by nanofabrication has made computers a reliable design tool in nanophotonics. Given that almost any 2d pattern can be fabricated at infrared length scales, ...

Oskooi, Ardavan F

2010-01-01T23:59:59.000Z

350

Robust joint full-waveform inversion of time-lapse seismic data sets with total-variation regularization  

E-Print Network (OSTI)

We present a technique for reconstructing subsurface velocity model changes from time-lapse seismic survey data using full-waveform inversion (FWI). The technique is based on simultaneously inverting multiple survey vintages, with model difference regularization using the total variation (TV) seminorm. We compare the new TV-regularized time-lapse FWI with the $L_2$-regularized joint inversion proposed in our earlier work, using synthetic data sets that exhibit survey repeatability issues. The results demonstrate clear advantages of the proposed TV-regularized joint inversion over alternatives methods for recovering production-induced model changes that are due to both fluid substitution and geomechanical effects.

Maharramov, Musa

2014-01-01T23:59:59.000Z

351

Inversion of azimuthally dependent NMO velocity in transversely isotropic media with a tilted axis of symmetry  

SciTech Connect

Just as the transversely isotropic model with a vertical symmetry axis (VTI media) is typical for describing horizontally layered sediments, transverse isotropy with a tilted symmetry axis (TTI) describes dipping TI layers (such as tilted shale beds near salt domes) or crack systems. P-wave kinematic signatures in TTI media are controlled by the velocity V{sub PO} in the symmetry direction, Thomsen's anisotropic coefficients {xi} and {delta}, and the orientation (tilt {nu} and azimuth {beta}) of the symmetry axis. Here, the authors show that all five parameters can be obtained from azimuthally varying P-wave NMO velocities measured for two reflectors with different dips and/or azimuths (one of the reflectors can be horizontal). The shear-wave velocity V{sub SO} in the symmetry direction, which has negligible influence on P-wave kinematic signatures, can be found only from the moveout of shear waves. Using the exact NMO equation, the authors examine the propagation of errors in observed moveout velocities into estimated values of the anisotropic parameters and establish the necessary conditions for a stable inversion procedure. Since the azimuthal variation of the NMO velocity is elliptical, each reflection event provides them with up to three constraints on the model parameters. Generally, the five parameters responsible for P-wave velocity can be obtained from two P-wave ellipses, but the feasibility of the moveout inversion strongly depends on the tilt {nu}. While most of the analysis is carried out for a single layer, the authors also extend the inversion algorithm to vertically heterogeneous TTI media above a dipping reflector using the generalized Dix equation. A synthetic example for a strongly anisotropic, stratified TTI medium demonstrates a high accuracy of the inversion.

Grechka, V.; Tsvankin, I.

2000-02-01T23:59:59.000Z

352

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

E-Print Network (OSTI)

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

Xu, Zhenzhen

2012-02-14T23:59:59.000Z

353

Inverse fixed energy scattering problem for the two-dimensional nonlinear Schroedinger operator  

E-Print Network (OSTI)

This work studies the direct and inverse fixed energy scattering problem for two-dimensional Schroedinger equation with rather general nonlinear index of refraction. In particular, using the Born approximation we prove that all singularities of the unknown compactly supported potential from $L^2$-space can be obtained uniquely by the scattering data with fixed positive energy. The proof is based on the new estimates for the Faddeev-Green's function in $L^\\infty$-space.

Georgios Fotopoulos; Valery Serov

2014-12-01T23:59:59.000Z

354

Optical imaging of phantoms from real data by an approximately globally convergent inverse algorithm  

E-Print Network (OSTI)

A numerical method for an inverse problem for an elliptic equation with the running source at multiple positions is presented. This algorithm does not rely on a good first guess for the solution. The so-called "approximate global convergence" property of this method is shown here. The performance of the algorithm is verified on real data for Diffusion Optical Tomography. Direct applications are in near-infrared laser imaging technology for stroke detection in brains of small animals.

Jianzhong Su; Michael V. Klibanov; Yueming Liu; Zhijin Lin; Natee Pantong; Hanli Liu

2012-08-25T23:59:59.000Z

355

Statistical inversion for medical x-ray tomography with few radiographs: II. Application to dental radiology  

Science Journals Connector (OSTI)

Diagnostic and operational tasks in dental radiology often require three-dimensional information that is difficult or impossible to see in a projection image. A CT-scan provides the dentist with comprehensive three-dimensional data. However, often CT-scan is impractical and, instead, only a few projection radiographs with sparsely distributed projection directions are available. Statistical (Bayesian) inversion is well-suited approach for reconstruction from such incomplete data. In statistical inversion, a priori information is used to compensate for the incomplete information of the data. The inverse problem is recast in the form of statistical inference from the posterior probability distribution that is based on statistical models of the projection data and the a priori information of the tissue. In this paper, a statistical model for three-dimensional imaging of dentomaxillofacial structures is proposed. Optimization and MCMC algorithms are implemented for the computation of posterior statistics. Results are given with in vitro projection data that were taken with a commercial intraoral x-ray sensor. Examples include limited-angle tomography and full-angle tomography with sparse projection data. Reconstructions with traditional tomographic reconstruction methods are given as reference for the assessment of the estimates that are based on the statistical model.

V Kolehmainen; S Siltanen; S Jrvenp; J P Kaipio; P Koistinen; M Lassas; J Pirttil; E Somersalo

2003-01-01T23:59:59.000Z

356

Robust inverse scattering full waveform seismic tomography for imaging complex structure  

SciTech Connect

Seismic tomography becomes important tool recently for imaging complex subsurface. It is well known that imaging complex rich fault zone is difficult. In this paper, The application of time domain inverse scattering wave tomography to image the complex fault zone would be shown on this paper, especially an efficient time domain inverse scattering tomography and their run in cluster parallel computer which has been developed. This algorithm is purely based on scattering theory through solving Lippmann Schwienger integral by using Born's approximation. In this paper, it is shown the robustness of this algorithm especially in avoiding the inversion trapped in local minimum to reach global minimum. A large data are solved by windowing and blocking technique of memory as well as computation. Parameter of windowing computation is based on shot gather's aperture. This windowing technique reduces memory as well as computation significantly. This parallel algorithm is done by means cluster system of 120 processors from 20 nodes of AMD Phenom II. Benchmarking of this algorithm is done by means Marmoussi model which can be representative of complex rich fault area. It is shown that the proposed method can image clearly the rich fault and complex zone in Marmoussi model even though the initial model is quite far from the true model. Therefore, this method can be as one of solution to image the very complex mode.

Nurhandoko, Bagus Endar B.; Sukmana, Indriani; Wibowo, Satryo; Deny, Agus; Kurniadi, Rizal; Widowati, Sri; Mubarok, Syahrul; Susilowati; Kaswandhi [Wave Inversion and Subsurface Fluid Imaging Research (WISFIR) Lab., Complex System Research Division, Physics Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung. and Rock Fluid Imaging Lab., Rock Physics and Cluster C (Indonesia); Rock Fluid Imaging Lab., Rock Physics and Cluster Computing Center, Bandung (Indonesia); Physics Department of Institut Teknologi Bandung (Indonesia); Rock Fluid Imaging Lab., Rock Physics and Cluster Computing Center, Bandung, Indonesia and Institut Teknologi Telkom, Bandung (Indonesia); Rock Fluid Imaging Lab., Rock Physics and Cluster Computing Center, Bandung (Indonesia)

2012-06-20T23:59:59.000Z

357

Design that report!  

Science Journals Connector (OSTI)

Design that report! ... Describes the many considerations that must go into designing an effective technical report, and how they can be incorporated into instruction regarding this process. ...

James W. Southern

1951-01-01T23:59:59.000Z

358

The hydroelectric problem of porous rocks: inversion of the position of the water table from self-potential data  

Science Journals Connector (OSTI)

......Potential Field and Applied Geophysics The hydroelectric problem of porous rocks: inversion...Green's functions for the coupled hydroelectric problem yields an integral equation...water flow through the electrokinetic (hydroelectric) coupling (e.g. Jouniaux et al......

A. Revil; V. Naudet; J. D. Meunier

2004-11-01T23:59:59.000Z

359

Estimation of in-situ petrophysical properties from wireline formation tester and induction logging measurements: A joint inversion approach  

E-Print Network (OSTI)

-filtrate invasion and formation test. A fully implicit finite- difference black-oil reservoir simulator with brine noise-free and noise-contaminated synthetic data. Joint inversion results provide a quantitative proof

Torres-Verdín, Carlos

360

Ambient noise surface wave tomography to determine the shallow shear velocity structure at Valhall: depth inversion with a Neighbourhood Algorithm  

Science Journals Connector (OSTI)

......dispersion. 4.3 Construction of a hybrid model Adding a single additional...inversion results. Therefore, a final hybrid 3-D model is constructed only...resources provided by the European Grid Infrastructure. For more information, please......

A. Mordret; M. Lands; N. M. Shapiro; S. C. Singh; P. Roux

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "inverse design cid" 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

High Frequency Inversion Capacitance Measurements for 6H-SiC n-MOS Capacitors from 450 to 600 C  

E-Print Network (OSTI)

we have focused on the regime of inversion biasing, where the electrical characteristics, where the electrical characteristics of the capacitor are dominated by minority carriers. Due was determined by monitoring the resistan

Ghosh, Ruby N.

362

Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems  

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

Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

363

The prevalence and clinical presentation of fibularis myofascial trigger points in the assessment and treatment of inversion ankle sprains.  

E-Print Network (OSTI)

??Thesis (M.Tech.:Chiropractic)-Dept. of Chiropractic, Durban University of Technology, 2007 121 leaves Ankle sprains account for 85% of all injuries to the ankle (Garrick, 1997). Inversion (more)

Van der Toorn, Ingrid

2007-01-01T23:59:59.000Z

364

On the feasibility to study inverse proximity effect in a single S/F bilayer by Polarized Neutron Reflectometry  

Science Journals Connector (OSTI)

Here we report on a feasibility study aiming to explore the potential of Polarized Neutron Reflectometry (PNR) for detecting the inverse proximity...T = 0.5T C ...

Yu. N. Khaydukov; B. Nagy; J. -H. Kim; T. Keller; A. Rhm; Yu. V. Nikitenko

2013-09-01T23:59:59.000Z

365

An analytical inversion method for determining regional and global emissions of greenhouse gases: Sensitivity studies and application to halocarbons  

E-Print Network (OSTI)

A new analytical inversion method has been developed to determine the regional and global emissions of long-lived atmospheric trace gases. It exploits in situ measurement data from three global networks and builds on ...

Stohl, A.

366

Designing Asynchronous Microprocessors Design Process Overview  

E-Print Network (OSTI)

) Parallel CHP Parallel CHP Sequential CHP informal translation ISA process decomposition process decomposition compilation #15; Design process is a sequence of provably correct transformations. #15; First CHP the CHP decomposition. #15; The design style tends to em- phasize concurrency issues. 2 #12; Sequential

Martin, Alain

367

System Design | Department of Energy  

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

System Design System Design This template is used to define the system design System Design More Documents & Publications Transition Plan Training Plan Feasibility Study Report...

368

HIGH-ENERGY EMISSION OF GRB 130427A: EVIDENCE FOR INVERSE COMPTON RADIATION  

SciTech Connect

A nearby superluminous burst GRB 130427A was simultaneously detected by six ?-ray space telescopes (Swift, the Fermi GLAST Burst Monitor (GBM)/Large Area Telescope, Konus-Wind, SPI-ACS/INTEGRAL, AGILE, and RHESSI) and by three RAPTOR full-sky persistent monitors. The isotropic ?-ray energy release is ?10{sup 54} erg, rendering it the most powerful explosion among gamma-ray bursts (GRBs) with a redshift z ? 0.5. The emission above 100 MeV lasted about one day, and four photons are at energies greater than 40 GeV. We show that the count rate of 100 MeV-100 GeV emission may be mainly accounted for by the forward shock synchrotron radiation and the inverse Compton radiation likely dominates at GeV-TeV energies. In particular, an inverse Compton radiation origin is favored for the ?(95.3, 47.3, 41.4, 38.5, 32) GeV photons arriving at t ? (243, 256.3, 610.6, 3409.8, 34366.2) s after the trigger of Fermi-GBM. Interestingly, the external inverse Compton scattering of the prompt emission (the second episode, i.e., t ? 120-260 s) by the forward-shock-accelerated electrons is expected to produce a few ?-rays at energies above 10 GeV, while five were detected in the same time interval. A possible unified model for the prompt soft ?-ray, optical, and GeV emission of GRB 130427A, GRB 080319B, and GRB 090902B is outlined. Implications of the null detection of >1 TeV neutrinos from GRB 130427A by IceCube are discussed.

Fan, Yi-Zhong; Zhang, Fu-Wen; He, Hao-Ning; Zhou, Bei; Yang, Rui-Zhi; Jin, Zhi-Ping; Wei, Da-Ming [Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China); Tam, P. H. T. [Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Liang, Yun-Feng, E-mail: yzfan@pmo.ac.cn, E-mail: fwzhang@pmo.ac.cn, E-mail: dmwei@pmo.ac.cn [Department of Physics, Guangxi University, Guangxi 530004 (China)

2013-10-20T23:59:59.000Z

369

Effective environments: Preparation of stationary states with inverse temperature ranging from positive to negative values  

E-Print Network (OSTI)

In this paper, we discuss how effective environments incorporating periodic measurements can be used to prepare a two-level system (TLS) in almost arbitrary thermal states: Concretely, we study a TLS coupled to a spin environment, the magnetization of which is measured periodically. In ensemble average these measurements cause a relaxation of the TLS into a thermal (diagonal) state. By adjusting the time between the measurements and the detuning of the environmental spins, the creation of very low temperatures as well as inversion becomes possible. Our analytical results derived for large environments are numerically shown to be valid even for quite small environments, down to only a few spins.

Thomas Jahnke; Gnter Mahler

2011-07-18T23:59:59.000Z

370

Interpreting Ulysses data using inverse scattering theory: Oblique Alfv\\'en waves  

E-Print Network (OSTI)

Solitary wave structures observed by the Ulysses spacecraft in the solar wind were analyzed using both inverse scattering theory as well as direct numerical integration of the derivative nonlinear Schr\\"odinger (DNLS) equation. Several of these structures were found to be consistent with soliton solutions of the DNLS equation. Such solitary structures have been commonly observed in the space plasma environment and may, in fact, be long-lived solitons. While the generation of these solitons may be due to an instability mechanism, e.g., the mirror instability, they may be observable far from the source region due to their coherent nature.

Wheeler, Harry R; Hamilton, R L

2015-01-01T23:59:59.000Z

371

Lensmem a gravitational lens inversion algorithm using the maximum entropy method  

E-Print Network (OSTI)

We present a new algorithm for inverting poorly resolved gravitational lens systems using the maximum entropy method (MEM). We test the method with simulations and then apply it to an 8 GHz VLA map of the radio ring lens MG1654+134. We model the lens as a singular isothermal sphere embedded in an external shear field and find the critical radius of the lens is b=0\\parcs9820, the dimensionless shear is \\gamma=0.0771, and the position angle of the shear is \\theta=100\\pdeg8. These results are consistent with the results obtained by Kochanek (1995) using a complementary inversion algorithm based on Clean.

Wallington, S; Narayan, R

1995-01-01T23:59:59.000Z

372

LensMEM: A Gravitational Lens Inversion Algorithm Using the Maximum Entropy Method  

E-Print Network (OSTI)

We present a new algorithm for inverting poorly resolved gravitational lens systems using the maximum entropy method (MEM). We test the method with simulations and then apply it to an 8 GHz VLA map of the radio ring lens MG1654+134. We model the lens as a singular isothermal sphere embedded in an external shear field and find the critical radius of the lens is $b=0\\parcs9820$, the dimensionless shear is $\\gamma=0.0771$, and the position angle of the shear is $\\theta=100\\pdeg8$. These results are consistent with the results obtained by Kochanek (1995) using a complementary inversion algorithm based on Clean.

S. Wallington; C. S. Kochanek; R. Narayan

1995-11-28T23:59:59.000Z

373

Inverse Cotton-Mouton effect of the Vacuum and of atomic systems  

E-Print Network (OSTI)

In this letter we calculate the Inverse Cotton-Mouton Effect (ICME) for the vacuum following the predictions of Quantum ElectroDynamics. We compare the value of this effect for the vacuum with the one expected for atomic systems. We finally show that ICME could be measured for the first time for noble gases using state-of-the-art laser systems and for the quantum vacuum with near-future laser facilities like ELI and HiPER, providing in particular a test of the nonlinear behaviour of quantum vacuum at intensities below the Schwinger limit of 4.5x10^33 W/m^2.

C. Rizzo; A. Dupays; R. Battesti; M. Fouch; G. L. J. A. Rikken

2010-05-04T23:59:59.000Z

374

Inverse Cotton-Mouton effect of the Vacuum and of atomic systems  

E-Print Network (OSTI)

In this letter we calculate the Inverse Cotton-Mouton Effect (ICME) for the vacuum following the predictions of Quantum ElectroDynamics. We compare the value of this effect for the vacuum with the one expected for atomic systems. We finally show that ICME could be measured for the first time for noble gases using state-of-the-art laser systems and for the quantum vacuum with near-future laser facilities like ELI and HiPER, providing in particular a test of the nonlinear behaviour of quantum vacuum at intensities below the Schwinger limit of 4.5x10^33 W/m^2.

Rizzo, C; Battesti, R; Fouch, M; Rikken, G L J A

2010-01-01T23:59:59.000Z

375

Sub-mm tests of the gravitational inverse-square law  

E-Print Network (OSTI)

Sub-mm tests of the gravitational inverse-square law are interesting from several quite different perspectives. This paper discusses work by the Eot-Wash group performed since the publication of our initial result in February 2001. We find no evidence for short-range Yukawa interactions. Our results provide an upper limit of 200 micrometers on the size of the largest ``extra'' dimension, and for the unification scenario with 2 large extra dimensions, set an upper limit of 150 micrometers on the size of those dimensions.

E. G. Adelberger

2002-02-02T23:59:59.000Z

376

Inverse spin Hall effect induced by spin pumping into semiconducting ZnO  

SciTech Connect

The inverse spin Hall effect (ISHE) of n-type semiconductor ZnO thin films with weak spin-orbit coupling has been observed by utilizing the spin pumping method. In the ferromagnetic resonance condition, the spin pumping driven by the dynamical exchange interaction of a permalloy film injects a pure spin current into the adjacent ZnO layer. This spin current gives rise to a DC voltage through the ISHE in the ZnO layer, and the DC voltage is proportional to the microwave excitation power. The effect is sizeable even when the spin backflow is considered.

Lee, Jung-Chuan [Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China); Huang, Leng-Wei [Graduate Institute of Applied Physics, National Chengchi University, Taipei 11605, Taiwan (China); Hung, Dung-Shing, E-mail: dshung@mail.mcu.edu.tw [Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China); Department of Information and Telecommunications Engineering, Ming Chuan University, Taipei 111, Taiwan (China); Chiang, Tung-Han [Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan (China); Huang, J. C. A., E-mail: jcahuang@mail.ncku.edu.tw [Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan (China); Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan (China); Liang, Jun-Zhi [Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan (China); Department of Physics, Fu Jen Catholic University, Taipei 242, Taiwan (China); Lee, Shang-Fan, E-mail: leesf@phys.sinica.edu.tw [Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China); Graduate Institute of Applied Physics, National Chengchi University, Taipei 11605, Taiwan (China)

2014-02-03T23:59:59.000Z

377

High-resolution inverse Raman and resonant-wave-mixing spectroscopy  

SciTech Connect

These research activities consist of high-resolution inverse Raman spectroscopy (IRS) and resonant wave-mixing spectroscopy to support the development of nonlinear-optical techniques for temperature and concentration measurements in combustion research. Objectives of this work include development of spectral models of important molecular species needed to perform coherent anti-Stokes Raman spectroscopy (CARS) measurements and the investigation of new nonlinear-optical processes as potential diagnostic techniques. Some of the techniques being investigated include frequency-degenerate and nearly frequency-degenerate resonant four-wave-mixing (DFWM and NDFWM), and resonant multi-wave mixing (RMWM).

Rahn, L.A. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

378

Final Version: Orbital Specificity in the Unoccupied States of UO2 from Resonant Inverse Photoelectron Spectroscopy  

SciTech Connect

One of the crucial questions of all actinide electronic structure determinations is the issue of 5f versus 6d character and the distribution of these components across the density of states. Here, a break-though experiment is discussed, which has allowed the direct determination of the U5f and U6d contributions to the unoccupied density of states (UDOS) in Uranium Dioxide. A novel Resonant Inverse Photoelectron (RIPES) and X-ray Emission Spectroscopy (XES) investigation of UO{sub 2} is presented. It is shown that the U5f and U6d components are isolated and identified unambiguously.

Tobin, J G; Yu, S W

2012-03-12T23:59:59.000Z

379

Quantum interference controlled resonance profiles: From lasing without inversion to photo-detection  

E-Print Network (OSTI)

In this work we report a quantum interference mediated control of the resonance profiles in a generic three-level system and investigate its effect on key quantum interference (QI) phenomena. Namely in a three level configuration with doublets in the ground or excited states, we show control over enhancement and suppression of the emission (absorption) profiles. This is achieved by manipulation of the strength of QI and the energy spacing of the doublets. We analyze the application of such QI induced control of the resonance profile in the framework of two limiting cases of lasing without inversion and photo-detection.

Konstantin E. Dorfman; Pankaj K. Jha; Sumanta Das

2011-08-07T23:59:59.000Z

380

Inverse diffraction for the Atmospheric Imaging Assembly in the Solar Dynamics Observatory  

E-Print Network (OSTI)

The Atmospheric Imaging Assembly in the Solar Dynamics Observatory provides full Sun images every 1 seconds in each of 7 Extreme Ultraviolet passbands. However, for a significant amount of these images, saturation affects their most intense core, preventing scientists from a full exploitation of their physical meaning. In this paper we describe a mathematical and automatic procedure for the recovery of information in the primary saturation region based on a correlation/inversion analysis of the diffraction pattern associated to the telescope observations. Further, we suggest an interpolation-based method for determining the image background that allows the recovery of information also in the region of secondary saturation (blooming).

Torre, Gabriele; Benvenuto, Federico; Massone, Anna Maria; Piana, Michele

2015-01-01T23:59:59.000Z

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


381

Structured x-ray beams from twisted electrons by inverse Compton scattering of laser light  

E-Print Network (OSTI)

The inverse Compton scattering of laser light on high-energetic twisted electrons is investigated with the aim to construct spatially structured x-ray beams. In particular, we analyze how the properties of the twisted electrons, such as the topological charge and aperture angle of the electron Bessel beam, affects the energy and angular distribution of scattered x-rays. We show that with suitably chosen initial twisted electron states one can synthesize tailor-made x-ray beam profiles with a well-defined spatial structure, in a way not possible with ordinary plane-wave electron beams.

Seipt, D; Fritzsche, S

2014-01-01T23:59:59.000Z

382

A Study of Gasification of Municipal Solid Waste Using a Double Inverse Diffusion Flame Burner  

Science Journals Connector (OSTI)

A Study of Gasification of Municipal Solid Waste Using a Double Inverse Diffusion Flame Burner ... Furthermore, the experiences of the waste incineration industry driven in the past by regulatory as well as technical issues may facilitate their commercial potentials outside the common market, especially in highly populated developing countries such as Korea with scarce landfill sites. ... Recently, several new technologies that involve gasification or combinations of pyrolysis, combustion, and gasification processes are currently being brought into the market for energy-efficient, environmentally friendly and economically sound methods of thermal processing of wastes. ...

Tae-Heon Kwak; Seungmoon Lee; Sanjeev Maken; Ho-Chul Shin; Jin-Won Park; Young Done Yoo

2005-08-24T23:59:59.000Z

383

Effect of Doppler broadening on optical gain without inversion in a four-level model  

Science Journals Connector (OSTI)

We discuss the effect of Doppler broadening on the gain and refractive index experienced by an optical probe when passing through a collection of atoms in the absence of a population inversion. We calculate the gain-absorption spectrum of the medium when the atoms have a Maxwell velocity distribution and compare the atomic response when the pump and probe beams are arranged in copropagating and counterpropagating configurations. The results in these two cases can be qualitatively very different from each other, as we show with the help of numerical calculations. A physical interpretation and the conditions for the validity of the results are provided.

De-Zhong Wang and Jin-Yue Gao

1995-10-01T23:59:59.000Z

384

Design of intelligent interiors  

E-Print Network (OSTI)

Ubiquitous computing is transforming interior design by allowing utilities, goods and information to be delivered where and when we need them. How will new information technologies impact the design of interior spaces? ...

Bonanni, Leonardo Amerigo, 1977-

2005-01-01T23:59:59.000Z

385

Seismic Design Expectations Report  

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

The Seismic Design Expectations Report (SDER) is a tool that assists DOE federal project review teams in evaluating the technical sufficiency of the project seismic design activities prior to...

386

Effortless Incremental Design FMEA  

E-Print Network (OSTI)

effects analysis (FMEA) can be augmented to make incremental design FMEA much less of a burden for the

Christopher J. Price

1996-01-01T23:59:59.000Z

387

System Design Stage  

Directives, Delegations, and Requirements

This chapter addresses translating the user-oriented functional design specifications into a set of technical, computer-oriented system design specifications; and designing the data structure and processes to the level of detail necessary to plan and execute the Programming and Installation Stages.

1997-05-21T23:59:59.000Z

388

Building Design | Department of Energy  

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

Design Design Building Design October 16, 2013 - 4:41pm Addthis Planning, Programming & Budgeting Building Design Project Construction Integrating renewable energy within Federal new construction or major renovations is critical at each phase of the design process. This overview covers considerations for renewable energy in the design phases of a construction project, including choosing the design team, the design team charrette, preliminary design, schematic design, design development, and construction documents. Information on this page introduces each of the design phases and provides a link to deeper-level information. Key Actions in Building Design Require specific renewable energy experience and skills for design team. Prioritize energy-related program

389

Magnetic topology and current channels in plasmas with toroidal current density inversions  

SciTech Connect

The equilibrium magnetic field inside axisymmetric plasmas with inversions on the toroidal current density is considered. Previous works have shown that internal regions with negative current density lead to non-nested magnetic surfaces inside the plasma. Following these results, we derive a general expression relating the positive and negative currents inside the non-nested surfaces. This is done in terms of an anisotropy parameter that is model-independent and is based in very general properties of the magnetic field. We demonstrate that the positive currents in axisymmetric islands screen the negative one in the plasma center by reaching about twice its magnitude. Further, we illustrate these results by developing a family of analytical local solutions for the poloidal magnetic field in a region of interest that contains the inverted current. These local solutions exhibit non-nested magnetic surfaces with a combined current of at least twice the magnitude of the negative one, as prescribed from the topological arguments, and allow to study topological transitions driven by geometrical changes in the current profile. To conclude, we discuss the signatures of internal current density inversions in a confinement device and show that magnetic pitch measurements may be inappropriate to differentiate current reversals and small current holes in plasmas.

Ciro, D.; Caldas, I. L. [Departamento de Fsica Aplicada, Universidade de So Paulo, 05508-090 So Paulo (Brazil)] [Departamento de Fsica Aplicada, Universidade de So Paulo, 05508-090 So Paulo (Brazil)

2013-10-15T23:59:59.000Z

390

COLLECTIVE EVIDENCE FOR INVERSE COMPTON EMISSION FROM EXTERNAL PHOTONS IN HIGH-POWER BLAZARS  

SciTech Connect

We present the first collective evidence that Fermi-detected jets of high kinetic power (L{sub kin}) are dominated by inverse Compton emission from upscattered external photons. Using a sample with a broad range in orientation angle, including radio galaxies and blazars, we find that very high power sources (L{sub kin} > 10{sup 45.5} erg s{sup -1}) show a significant increase in the ratio of inverse Compton to synchrotron power (Compton dominance) with decreasing orientation angle, as measured by the radio core dominance and confirmed by the distribution of superluminal speeds. This increase is consistent with beaming expectations for external Compton (EC) emission, but not for synchrotron self-Compton (SSC) emission. For the lowest power jets (L{sub kin} < 10{sup 43.5} erg s{sup -1}), no trend between Compton and radio core dominance is found, consistent with SSC. Importantly, the EC trend is not seen for moderately high power flat spectrum radio quasars with strong external photon fields. Coupled with the evidence that jet power is linked to the jet speed, this finding suggests that external photon fields become the dominant source of seed photons in the jet comoving frame only for the faster and therefore more powerful jets.

Meyer, Eileen T.; Fossati, Giovanni [Department of Physics and Astronomy, Rice University, Houston, TX 77005 (United States); Georganopoulos, Markos [Department of Physics, Joint Center for Astrophysics, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250 (United States); Lister, Matthew L. [Department of Physics, Purdue University, 525 Northwestern Avenue, West Lafayette, IN 47907 (United States)

2012-06-10T23:59:59.000Z

391

Inverse kinematics for optimal tool orientation control in 5-axis CNC machining  

Science Journals Connector (OSTI)

Abstract The problem of determining the inputs to the rotary axes of a 5-axis CNC machine is addressed, such that relative variations of orientation between the tool axis and surface normal are minimized subject to the constraint of maintaining a constant cutting speed with a ball-end tool. In the context of an orientable-spindle machine, the results of a prior study are directly applicable to the solution of this inverse-kinematics problem. However, since they are expressed in terms of the integral of the geodesic curvature, a discrete time-step solution is proposed that yields accurate rotary-axis increments at high sampling frequencies. For an orientable-table machine, a closed-form solution that specifies the rotary-axis positions as functions of the surface normal variation along the toolpath is possible. In this context, however, the feasibility of a solution is dependent upon the surface normal along the toolpath satisfying certain orientational constraints. These inverse-kinematics solutions facilitate accurate and efficient 5-axis machining of free-form surfaces without unnecessary actuation of the machine rotary axes.

Rida T. Farouki; Chang Yong Han; Shiqiao Li

2014-01-01T23:59:59.000Z

392

Estimating permeability from quasi-static deformation: Temporal variations and arrival time inversion  

SciTech Connect

Transient pressure variations within a reservoir can be treated as a propagating front and analyzed using an asymptotic formulation. From this perspective one can define a pressure 'arrival time' and formulate solutions along trajectories, in the manner of ray theory. We combine this methodology and a technique for mapping overburden deformation into reservoir volume change as a means to estimate reservoir flow properties, such as permeability. Given the entire 'travel time' or phase field, obtained from the deformation data, we can construct the trajectories directly, there-by linearizing the inverse problem. A numerical study indicates that, using this approach, we can infer large-scale variations in flow properties. In an application to Interferometric Synthetic Aperture (InSAR) observations associated with a CO{sub 2} injection at the Krechba field, Algeria, we image pressure propagation to the northwest. An inversion for flow properties indicates a linear trend of high permeability. The high permeability correlates with a northwest trending fault on the flank of the anticline which defines the field.

Vasco, D.W.; Ferretti, Alessandro; Novali, Fabrizio

2008-05-01T23:59:59.000Z

393

Properties of solar plage from a spatially coupled inversion of Hinode SP data  

E-Print Network (OSTI)

The properties of magnetic fields forming an extended plage region in AR 10953 were investigated. Stokes spectra of the Fe I line pair at 6302 \\AA recorded by the spectropolarimeter aboard the Hinode satellite were inverted using the SPINOR code. The code performed a 2D spatially coupled inversion on the Stokes spectra, allowing the retrieval of gradients in optical depth within the atmosphere of each pixel, whilst accounting for the effects of the instrument's PSF. Consequently, no magnetic filling factor was needed. The inversion results reveal that plage is composed of magnetic flux concentrations (MFCs) with typical field strengths of 1520 G at log(\\tau)=-0.9 and inclinations of 10-15 degrees. The MFCs expand by forming magnetic canopies composed of weaker and more inclined magnetic fields. The expansion and average temperature stratification of isolated MFCs can be approximated well with an empirical plage thin flux-tube model. The highest temperatures of MFCs are located at their edges in all log(\\tau) ...

Buehler, D; Solanki, S K; van Noort, M

2015-01-01T23:59:59.000Z

394

Stellar acoustic radii, mean densities and ages from seismic inversion techniques  

E-Print Network (OSTI)

Context. Determining stellar characteristics such as the radius, the mass or the age is crucial when studying stellar evolution, exoplanetary systems or characterising stellar populations in the Galaxy. Asteroseismology is the golden path to accurately obtain these characteristics. In this context, a key question is how to make these methods less model-dependant. Aims. Building on the work of Reese et al. (2012), we wish to extend the SOLA inversion technique to new stellar global characteristics in addition to the mean density. The goal is to provide a general framework in which to estimate these characteristics as accurately as possible in low mass main sequence stars. Methods. First, we describe our framework and discuss the reliability of the inversion technique and the possible sources of error.We then apply this methodology to the acoustic radius, an age indicator based on the sound speed derivative and the mean density and compare it to estimates based on the average large and small frequency separatio...

Buldgen, Gal; Dupret, Marc-Antoine; Samadi, Rza

2014-01-01T23:59:59.000Z

395

Singing with yourself: Evidence for an inverse modeling account of poor-pitch singing  

Science Journals Connector (OSTI)

Abstract Singing is a ubiquitous and culturally significant activity that humans engage in from an early age. Nevertheless, some individuals termed poor-pitch singers are unable to match target pitches within a musical semitone while singing. In the experiments reported here, we tested whether poor-pitch singing deficits would be reduced when individuals imitate recordings of themselves as opposed to recordings of other individuals. This prediction was based on the hypothesis that poor-pitch singers have not developed an abstract inverse model of the auditoryvocal system and instead must rely on sensorimotor associations that they have experienced directly, which is true for sequences an individual has already produced. In three experiments, participants, both accurate and poor-pitch singers, were better able to imitate sung recordings of themselves than sung recordings of other singers. However, this self-advantage was enhanced for poor-pitch singers. These effects were not a byproduct of self-recognition (Experiment 1), vocal timbre (Experiment 2), or the absolute pitch of target recordings (i.e., the advantage remains when recordings are transposed, Experiment 3). Results support the conceptualization of poor-pitch singing as an imitative deficit resulting from a deficient inverse model of the auditoryvocal system with respect to pitch.

Peter Q. Pfordresher; James T. Mantell

2014-01-01T23:59:59.000Z

396

Spherical and ellipsoidal volcanic sources at Long Valley caldera, California, using a genetic algorithm inversion technique  

Science Journals Connector (OSTI)

We model the second inflation period at Long Valley caldera, California using a genetic algorithm technique and high quality geodetic measurements of elevation changes and baseline extensions. We compare two source inversions for both spherical Mogi point sources and the finite prolate ellipsoid of Yang and Davis. A sensitivity analysis for the genetic algorithm is performed based upon synthetic data set inversions on similar sources in order to better constrain the areal location, orientation, and volume of the potential sources. The spherical sources are well constrained, the larger located at 9.9km beneath the resurgent dome, with a volume of 0.036km3, while the second, at only 0.008km3, is located at a depth of 7.3km beneath the south moat. The depths to the ellipsoidal sources are switched, with the larger source at a depth of 9.6km and the smaller at 11.8km, with volumes of 0.037 and 0.002km3, respectively.

K.F Tiampo; J.B Rundle; J Fernandez; J.O Langbein

2000-01-01T23:59:59.000Z

397

Dynamic Inversion for Hydrological Process Monitoring with Electrical Resistance Tomography Under Model Uncertainty  

SciTech Connect

We propose an approach for imaging the dynamics of complex hydrological processes. The evolution of electrically conductive fluids in porous media is imaged using time-lapse electrical resistance tomography. The related dynamic inversion problem is solved using Bayesian filtering techniques, that is, it is formulated as a sequential state estimation problem in which the target is an evolving posterior probability density of the system state. The dynamical inversion framework is based on the state space representation of the system, which involves the construction of a stochastic evolution model and an observation model. The observation model used in this paper consists of the complete electrode model for ERT, with Archie's law relating saturations to electrical conductivity. The evolution model is an approximate model for simulating flow through partially saturated porous media. Unavoidable modeling and approximation errors in both the observation and evolution models are considered by computing approximate statistics for these errors. These models are then included in the construction of the posterior probability density of the estimated system state. This approximation error method allows the use of approximate - and therefore computationally efficient - observation and evolution models in the Bayesian filtering. We consider a synthetic example and show that the incorporation of an explicit model for the model uncertainties in the state space representation can yield better estimates than a frame-by-frame imaging approach.

Lehikoinen, A.; Huttunen, J.M.J.; Finsterle, S.; Kowalsky, M.B.; Kaipio, J.P.

2009-08-01T23:59:59.000Z

398

Flaw Shape Reconstruction from SH-Wave Array Ultrasonic Data Using Time Domain Linearized Inverse Scattering Method  

SciTech Connect

A linearized inverse scattering method, so called the Kirchhoff inversion, is formulated in time domain for SH-waves measured by a contact ultrasonic transducer and tested using experimental data. The data for reconstruction are experimentally obtained by measuring ultrasonic echoes from artificial flaws in steel plate specimens. For an efficient and accurate data collection, a contact SH-wave linear array transducer is used. The shapes of the artificial flaws are reconstructed by the Kirchhoff inversion and the conventional SAFT (Synthetic Aperture Focusing Technique) using the waves from a single ray path. Comparison of the two methods shows that the Kirchhoff inversion works well for experimental data and outperforms SAFT although only an illuminated portion of the flaw boundaries is reconstructed by either method. In order to gain more information on the flaw boundaries, the Kirchhoff inversion which takes into account multiple ray paths is also tested with the same experimental data. As a result, it is shown that a larger part of the flaw boundaries can be visualized by considering the multiple ray paths.

Kimoto, K.; Hirose, S. [Department of Mechanical and Environmental Informatics, Graduate School of Information Science and Engineering, Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552 (Japan)

2005-04-09T23:59:59.000Z

399

Customization for tool design  

SciTech Connect

ICEMDDN capabilities have been adapted to the specific needs of the tool designer for creation of tool and gage designs. A customized graphic system allows the designer to concentrate on the design task, not on the mechanics of the graphs system. Prerequisites of customization include management support, user acceptance, user contributions, CAD/CAM operations support and cooperation from Control Data Corporation. Benefits from customization included a measurable increase in design production, better completion schedules, high quality drawings with better accuracy, and job satisfaction from participation in system development and improvement.

Michaelson, B.

1985-10-01T23:59:59.000Z

400

Final Beamline Design Report  

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

Final Beamline Design Report Final Beamline Design Report Guidelines and Review Criteria (SCD 1.20.95) 6.0 Final Beamline Design Report (FDR) Overview The Final Beamline Design Report is part of the Advanced Photon Source (APS) beamline review process and should be planned for when approximately 90% of the total beamline design has been completed. Fifteen copies of the FDR are to be submitted to the APS Users Office. Approval of the Collaborative Access Team's (CAT) designs described in the report is required prior to installation of beamline components in the APS Experiment Hall. Components that have a long lead time for design or procurement can be reviewed separately from the remainder of the beamline, but enough information must be provided so that the reviewer can understand the

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


401

A transmission electron microscopy investigation of inverse melting in Nb{sub 45}Cr{sub 55}  

SciTech Connect

In inverse melting, a supersaturated crystalline phase transforms polymorphously under heat treatment to the amorphous state. Inverse melting of body-centered cubic (bcc) Nb{sub 45}Cr{sub 55} is studied using transmission electron microscopy (TEM) and high resolution TEM (HRTEM). The crystalline to amorphous transformation is heterogeneous, initiating at the bcc grain boundaries. HRTEM reveals 2-3 nm domains with medium range order (MRO) in the amorphous phase. Preferred orientation of MRO domains is found on a scale corresponding to the precursor bcc grain size. Using HRTEM and calorimetry, MRO development in cosputtered Nb{sub 45}Cr{sub 55} films is characterized and compared to that in the amorphous phase produced by inverse melting. {copyright} {ital 1997 Materials Research Society.}

Sinkler, W.; Michaelsen, C.; Bormann, R. [Institute for Materials Research, GKSS Research Center, 21502 Geesthacht (Germany)

1997-07-01T23:59:59.000Z

402

Iron-57 nuclear magnetic resonance chemical shifts of hindered iron porphyrins. Ruffling as a possible mechanism for d-orbital energy level inversion  

Science Journals Connector (OSTI)

Iron-57 nuclear magnetic resonance chemical shifts of hindered iron porphyrins. ... Ruffling as a possible mechanism for d-orbital energy level inversion ...

Lars Baltzer; Marie Landergren

1990-03-01T23:59:59.000Z

403

On the GCR intensity and the inversion of the heliospheric magnetic field during the periods of the high solar activity  

E-Print Network (OSTI)

We consider the long-term behavior of the solar and heliospheric parameters and the GCR intensity in the periods of high solar activity and the inversions of heliospheric magnetic field (HMF). The classification of the HMF polarity structures and the meaning of the HMF inversion are discussed. The procedure is considered how to use the known HMF polarity distribution for the GCR intensity modeling during the periods of high solar activity. We also briefly discuss the development and the nearest future of the sunspot activity and the GCR intensity in the current unusual solar cycle 24.

Krainev, M B

2014-01-01T23:59:59.000Z

404

Memorable Logo Design  

E-Print Network (OSTI)

RESEARCH SCHOLAR A Senior Scholars Thesis by LORI DIANE LAMPE MEMORABLE LOGO DESIGN Approved by: Research Advisor: Rodney Hill Director for Honors and Undergraduate Research: Suma Datta Major: Environmental Design April 2011 Submitted... 2011) Lori Diane Lampe Department of Architecture Texas A&M University Research Advisor: Prof. Rodney Hill Department of Architecture The primary purpose of this research is to look into the design of successful logos and determine what...

Lampe, Lori

2011-08-08T23:59:59.000Z

405

Nonlinear inverse synthesis for high spectral efficiency transmission in optical fibers  

E-Print Network (OSTI)

In linear communication channels, spectral components (modes) defined by the Fourier transform of the signal propagate without interactions with each other. In certain nonlinear channels, such as the one modelled by the classical nonlinear Schr\\"odinger equation, there are nonlinear modes (nonlinear signal spectrum) that also propagate without interacting with each other and without corresponding nonlinear cross talk; effectively, in a linear manner. Here, we describe in a constructive way how to introduce such nonlinear modes for a given input signal. We investigate the performance of the nonlinear inverse synthesis (NIS) method, in which the information is encoded directly onto the continuous part of the nonlinear signal spectrum. This transmission technique, combined with the appropriate distributed Raman amplification, can provide an effective eigenvalue division multiplexing with high spectral efficiency, thanks to highly suppressed channel cross talk. The proposed NIS approach can be integrated with any...

Le, Son Thai; Turitsyn, Sergei K

2014-01-01T23:59:59.000Z

406

Constraints on Light Pseudoscalars Implied by Tests of the Gravitational Inverse-Square Law  

E-Print Network (OSTI)

The exchange of light pseudoscalars between fermions leads to a spin-independent potential in order g^4, where g is the Yukawa pseudoscalar-fermion coupling constant. This potential gives rise to detectable violations of both the weak equivalence principle (WEP) and the gravitational inverse-square law (ISL), even if g is quite small. We show that when previously derived WEP constraints are combined with those arisingfrom ISL tests, a direct experimental limit on the Yukawa coupling of light pseudoscalars to neutrons can be inferred for the first time (g_n^2/4pi < 1.6 \\times 10^-7), along with a new (and significantly improved) limit on the coupling of light pseudoscalars to protons.

Ephraim Fischbach; Dennis E. Krause

1999-06-03T23:59:59.000Z

407

A retrieval of coastal water constituent concentrations by least-squares inversion of a radiance model  

SciTech Connect

A three-component model of water color including phytoplankton pigment, dissolved organic matter (DOM) and suspended sediments has been developed and applied to coastal waters. A feature of the model is the possibility of varying the parameters describing the spectral backscatter of sediment and the spectral absorption of DOM when inverting the water-leaving radiance model. A linear least-squares technique is used to retrieve optical properties from the water-leaving radiance model. The radiance model is inverted to obtain the optical properties for each set of the parameter values. The set providing the minimum standard error of least squares inversion is taken as the final solution. An analysis of sensitivity of the solution to random radiance measurement errors was carried out. The application of the approach to coastal waters subject to tidal resuspension is discussed.

Vasilkov, A.P. [Management Unit of the Mathematical Models of the North Sea and Scheldt Estuary, Brussels (Belgium)

1997-08-01T23:59:59.000Z

408

Inverse seesaw in NMSSM and 126 GeV Higgs boson  

Science Journals Connector (OSTI)

We consider extensions of the next-to-minimal supersymmetric model (NMSSM) in which the observed neutrino masses are generated through a TeV scale inverse seesaw mechanism. The new particles associated with this mechanism can have sizable couplings to the Higgs field which can yield a large contribution to the mass of the lightest CP-even Higgs boson. With this new contribution, a 126 GeV Higgs is possible along with order of 200 GeV masses for the stop quarks for a broad range of tan?. The Higgs production and decay in the diphoton channel can be enhanced due to this new contribution. It is also possible to solve the little hierarchy problem in this model without invoking a maximal value for the NMSSM trilinear coupling and without severe restrictions on the value of tan?.

Ilia Gogoladze; Bin He; Qaisar Shafi

2013-01-01T23:59:59.000Z

409

IBIS: An inverse geometry Brillouin inelastic neutron spectrometer for the SNS  

SciTech Connect

The high power target station at the Spallation Neutron Source (SNS) currently has about 20 completed neutron scattering instruments. With a broad coverage of the momentum transfer (Q)-energy (E) space, these instruments serve an extensive user community. In an effort to further expand the scientific capabilities of the SNS instrument suites, we propose a low background, inverse geometry Brillouin inelastic spectrometer for the SNS which will expand the Q-E coverage of the current instrument suite and facilitate the study of inelastic and quasi-elastic scatterings at low Q values. The possible location for the proposed instrument is either beamline 8 which views the decoupled water moderator, or beamline 14A, which views a cold, coupled super critical hydrogen moderator. The instrument parameters, optimizations, and performances at these two beamline locations are discussed.

Zhao, J. K.; Robertson, Lee; Herwig, Kenneth W. [Instrument and Source Development Division, Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Wildgruber, Christoph U. [Chemical and Engineering Division, Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

2013-02-15T23:59:59.000Z

410

Inverse Sensitivity/Uncertainty Methods Development for Nuclear Fuel Cycle Applications  

Science Journals Connector (OSTI)

Abstract The Standardized Computer Analyses for Licensing Evaluation (SCALE) software package developed at the Oak Ridge National Laboratory includes codes that propagate uncertainties available in the nuclear data libraries to compute uncertainties in nuclear application performance parameters. We report on our recent efforts to extend this capability to develop an inverse sensitivity/uncertainty (IS/U) methodology that identifies the improvements in nuclear data that are needed to compute application responses within prescribed tolerances, while minimizing the cost of such data improvements. We report on our progress to date and present a simple test case for our method. Our methodology is directly applicable to thermal and intermediate neutron energy systems because it addresses the implicit neutron resonance self-shielding effects that are essential to accurate modeling of thermal and intermediate systems. This methodology is likely to increase the efficiency of nuclear data efforts.

G. Arbanas; M.E. Dunn; M.L. Williams

2014-01-01T23:59:59.000Z

411

Narrowband inverse Compton scattering x-ray sources at high laser intensities  

E-Print Network (OSTI)

Narrowband x- and gamma-ray sources based on the inverse Compton scattering of laser pulses suffer from a limitation of the allowed laser intensity due to the onset of nonlinear effects that increase their bandwidth. It has been suggested that laser pulses with a suitable frequency modulation could compensate this ponderomotive broadening and reduce the bandwidth of the spectral lines, which would allow to operate narrowband Compton sources in the high-intensity regime. In this paper we, therefore, present the theory of nonlinear Compton scattering in a frequency modulated intense laser pulse. We systematically derive the optimal frequency modulation of the laser pulse from the scattering matrix element of nonlinear Compton scattering, taking into account the electron spin and recoil. We show that, for some particular scattering angle, an optimized frequency modulation completely cancels the ponderomotive broadening for all harmonics of the backscattered light. We also explore how sensitive this compensation ...

Seipt, D; Surzhykov, A; Fritzsche, S

2014-01-01T23:59:59.000Z

412

Fast Inverse Nonlinear Fourier Transform For Generating Multi-Solitons In Optical Fiber  

E-Print Network (OSTI)

The achievable data rates of current fiber-optic wavelength-division-multiplexing (WDM) systems are limited by nonlinear interactions between different subchannels. Recently, it was thus proposed to replace the conventional Fourier transform in WDM systems with an appropriately defined nonlinear Fourier transform (NFT). The computational complexity of NFTs is a topic of current research. In this paper, a fast inverse NFT algorithm for the important special case of multi-solitonic signals is presented. The algorithm requires only $\\mathcal{O}(D\\log^{2}D)$ floating point operations to compute $D$ samples of a multi-soliton. To the best of our knowledge, this is the first algorithm for this problem with $\\log^{2}$-linear complexity. The paper also includes a many samples analysis of the generated nonlinear Fourier spectra.

Wahls, Sander

2015-01-01T23:59:59.000Z

413

Effective Design Strategies  

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

As described in the Whole Building Design Guide (WBDG), all Federal agencies are required to follow the Guiding Principles for New Construction and Major Renovations, which include considerations...

414

LSST Camera Optics Design  

SciTech Connect

The Large Synoptic Survey Telescope (LSST) uses a novel, three-mirror, telescope design feeding a camera system that includes a set of broad-band filters and three refractive corrector lenses to produce a flat field at the focal plane with a wide field of view. Optical design of the camera lenses and filters is integrated in with the optical design of telescope mirrors to optimize performance. We discuss the rationale for the LSST camera optics design, describe the methodology for fabricating, coating, mounting and testing the lenses and filters, and present the results of detailed analyses demonstrating that the camera optics will meet their performance goals.

Riot, V J; Olivier, S; Bauman, B; Pratuch, S; Seppala, L; Gilmore, D; Ku, J; Nordby, M; Foss, M; Antilogus, P; Morgado, N

2012-05-24T23:59:59.000Z

415

PREFACE THE DESIGN MANUAL  

E-Print Network (OSTI)

developed and adopted a series of documents that describe the codes, standards, details, products, and practices to be followed by Architect/Engineers (A/Es). These documents apply to all design of construction at all facilities on property owned by the Authority. Facilities constructed or modified on the site occupied by the National Air and Space Museum located at Washington Dulles International Airport are exempt from the requirements of the Authority Design Manual. The Design Manual has been developed to assist Architects/Engineers (A/Es) in understanding the practices and policies that must be incorporated into each project. The Design Manual contains a number of specific requirements that must be followed on all projects, as described above. These can be either Authority contracted projects, Authority direct-constructed projects, and tenant contracted projects. APPLICABILITY OF THE DESIGN MANUAL The requirements for design and construction incorporated into the Design Manual and Supporting Volumes are regulations approved by the Metropolitan Washington Airports Authority Board of Directors and shall be considered contract requirements for all A/Es who are performing services under contract to the Authority. Although A/Es who are under contract to tenants of the Authority may not be working under contract provisions that make compliance with these requirements mandatory, the Authority reserves the right, as Owner of all airport facilities, and land on which tenant buildings are constructed, to reject any design or work that does not comply with the requirements of the Design Manual and its

unknown authors

2010-01-01T23:59:59.000Z

416

Motivational Design Patterns  

E-Print Network (OSTI)

Cunningham (2011). Gamification by Design: Im- plementingisbn: 1118089308. (2011b). Gamification, Behaviorism andpp. 3236. (2011). Gamification is Bullshit. In: Wharton

Lewis, Chris

2013-01-01T23:59:59.000Z

417

Mechanizing Exploratory Game Design  

E-Print Network (OSTI)

a small piece of advanced search algorithm design wisdom,search problems, the advanced search algorithms of theto use the advanced combinatorial search algorithms that

Smith, Adam Marshall

2012-01-01T23:59:59.000Z

418

Cooperative Modeling and Design History Tracking Using Design Tracking Matrix  

E-Print Network (OSTI)

This thesis suggests a new framework for cooperative modeling which supports concurrency design protocol with a design history tracking function. The proposed framework allows designers to work together while eliminating design conflicts...

Kim, Jonghyun

2010-10-12T23:59:59.000Z

419

Design for manufacturability: quantitative measures for design evaluation  

E-Print Network (OSTI)

In a design for manufacturing (DFM) approach, the designer has to consider the interactions between the various parameters in the design and the ease with which it can be manufactured, very early in the design process. This research is aimed...

Polisetty, Francis Showry Kumar

2012-06-07T23:59:59.000Z

420

Introduction and Overall Design Approach Design Methodology Issues.........................................................................................................................................................2  

E-Print Network (OSTI)

1-1 Section 1 Introduction and Overall Design Approach Design Methodology Issues.....................................................................................................................................5 Design Methodology Framework, examine current practices, and produce useful tools for drainage design in the future. Therefore

Pitt, Robert E.

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


421

CMOS VLSI DesignCMOS VLSI Design David Harris  

E-Print Network (OSTI)

1 CMOS VLSI DesignCMOS VLSI Design David Harris Harvey Mudd College Claremont, CA 91711 [David_Harris. (3e) Baker, CMOS: Circuit Design, Layout, and Simulation (2e) Weste & Harris, CMOS VLSI Design (3e

Harris, David Money

422

Nuclear Magnetic Resonance Inverse Spectra of InGaAs Quantum Dots: Atomistic Level Structural Information  

E-Print Network (OSTI)

A wealth of atomistic information is buried within a self-assembled quantum dot (QD), carrying the legacy of its chemical composition and the growth history. In the presence of quadrupolar nuclei, as in InGaAs QDs, much of this is inherited to nuclear spins. With this computational study, we identify what sorts of atomistic information can be tapped from a single InGaAs QD, as probed optically by the recently introduced highly sensitive inverse spectra nuclear magnetic resonance technique. To capture the fingerprints of alloying in the spectra, we compare In0.2Ga0.8As QD with the compound InAs QD of the same shape, as well as performing a search over the parameter space of the inverse spectra technique. We display how both the elemental nuclear properties and local bonding take roles. The arsenic nuclei with their small gyromagnetic ratio are the most vulnerable to strain at a given magnetic field. Furthermore, because of their large S44 gradient elastic tensor components, the deviation of the major electric field gradient axis from the static magnetic field is also the largest. Moreover, this axial tilting has a big variance caused by the availability of various arsenic-centric nearest-neighbor configurations under cation alloying. We identify that a signature of alloying as opposed to segregated binaries within the QD is a peak that appears like an additional satellite transition of 75As. The local chemical and strain environment distinctly affect the isotopic line profiles, in particular the central transitions, for which we provide an in-depth analysis. We demonstrate the possibility of restoring to a large extend a monoenergetic distribution of isotopic nuclear spins by simply tilting the sample within a range of angles with respect to static magnetic field.

Ceyhun Bulutay; E. A. Chekhovich; A. I. Tartakovskii

2014-08-02T23:59:59.000Z

423

Describing the design space of mechanical computational design synthesis problems  

Science Journals Connector (OSTI)

An important challenge in mechatronic system design is to select a feasible system architecture that satisfies all requirements. This article describes (i) the necessary concepts that a system architect needs to be able to formally and declaratively ... Keywords: Computational design synthesis, Configuration design, Design Space Exploration, Embodiment design, Gearbox architecture, Variant design

Klaas Gadeyne, Gregory Pinte, Kristof Berx

2014-08-01T23:59:59.000Z

424

Design for chemical recycling  

Science Journals Connector (OSTI)

...than design. Life-cycle assessment (LCA), resource envi- ronmental profile analysis...product from cradle to grave. Although LCA is considered to be an evaluation tool and...polyol from oil. 7. The design check using LCA In order to check that chemical recycling...

1997-01-01T23:59:59.000Z

425

Wire mesh design  

Science Journals Connector (OSTI)

We present a computational approach for designing wire meshes, i.e., freeform surfaces composed of woven wires arranged in a regular grid. To facilitate shape exploration, we map material properties of wire meshes to the geometric model of Chebyshev ... Keywords: Chebyshev nets, design, discrete differential geometry, global optimization, interactive shape modeling, wire mesh

Akash Garg; Andrew O. Sageman-Furnas; Bailin Deng; Yonghao Yue; Eitan Grinspun; Mark Pauly; Max Wardetzky

2014-07-01T23:59:59.000Z

426

Reading context in design  

E-Print Network (OSTI)

This study explores how, in the process of design, the reading of an existing order in the organizing features of a setting potentiates form. For this purpose, a design exercise on a site in the city of Jaipur in India has ...

Agrawal, Vivek

1993-01-01T23:59:59.000Z

427

Concentration in Green Design  

E-Print Network (OSTI)

, energy, infrastructure or transport. Participants in this specialization area work closely with the GreenConcentration in Green Design Research and Education Opportunities Carnegie Mellon University Civil and Environmental Engineering www.ce.cmu.edu M.S. Concentration Green Design - Course Only Track As an extension

Shewchuk, Jonathan

428

Closed-form Inverse Kinematic Solution for Anthropomorphic Motion in Redundant Robot Arms.  

E-Print Network (OSTI)

??As robots are increasingly migrating out of factories and research laboratories and into our everyday lives, they should move and act in environments designed for (more)

Wang, Yuting

2013-01-01T23:59:59.000Z

429

FATIGUE DESIGN CURVES FOR  

Office of Scientific and Technical Information (OSTI)

FATIGUE DESIGN CURVES FATIGUE DESIGN CURVES FOR 6061-T6 ALUMINUM* G . T . Yahr Engineering Technology Division Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-8051 ABSTRACT A request has been made to the ASME Boiler and Pressure Vessel Committee that 6061-T6 aluminum be approved for use in the construction of Class 1 welded nuclear vessels so it can be used for the pressure vessel of the Advanced Neutron Source research reactor. Fatigue design curves with and without mean stress effects have been proposed. A knock-down factor of two is applied to the design curve for evaluation of welds. The basis of the curves is explained. The fatigue design curves are compared to fatigue data from base metal and weldments. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States

430

Beyond Design Basis Events  

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

Beyond Design Basis Events Beyond Design Basis Events Following the March 2011 Fukushima Daiichi nuclear plant accident in Japan, DOE embarked upon several initiatives to investigate the safety posture of its nuclear facilities relative to beyond design basis events (BDBEs). These initiatives included issuing Safety Bulletin 2011-01, Events Beyond Design Safety Basis Analysis, and conducting two DOE nuclear safety workshops. DOE also issued two reports documenting the results of these initiatives: Review of Requirements and Capabilities for Analyzing and Responding to BDBEs, August 2011, and Report to the Secretary of Energy on Beyond Design Basis Event Pilot Evaluations, Results and Recommendations for Improvements to Enhance Nuclear Safety at DOE Nuclear Facilities, January 2013.

431

Final Design RM  

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

Final Design Review Module Final Design Review Module March 2010 CD-0 [This Rev Design Re O 0 view Module w eview of the OR OFFICE OF C CD-1 was used to dev R U 233 Dispo F ENVIRO Standard R Fin Rev Critical Decis CD-2 M velop the Revie osition Project ONMENTAL Review Plan al Design view Module sion (CD) Ap CD March 2010 ew Plan for 90% in 2009. Lesso Module.] L MANAGE n (SRP) n e pplicability D-3 % Design Revi ons learned hav EMENT CD-4 iew of SWPF i ve been incorpo Post Ope in 2008 and for orated in the R eration r 60% Review Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental Management (EM) projects are identified early and addressed proactively.

432

SLC Design Handbook  

SciTech Connect

The SLC Design Handbook is intended to be a consistent description of the SLAC Linear Collider project, including explanations of the design criteria and listing the key technical specifications. The precedent set by the PEP Design Handbook during the construction and commissioning of that machine a few years ago leads us to hope that this handbook will have a similar impact on the SLC by serving as a concise and up-to-date reference guide for the design and construction. Many details of the SLC design are not yet firm and can be expected to evolve as the construction proceeds. Thus, we have chosen a 3-ring loose-leaf format and a page numbering scheme to accommodate the addition or replacement of sections as needed. In order to minimize the confusion that could result from the distribution of multiple versions of some sections, each page is marked with a revision data in the upper right corner.

Erickson, R

2004-04-08T23:59:59.000Z

433

Beam director design report  

SciTech Connect

A design and fabrication effort for a beam director is documented. The conceptual design provides for the beam to pass first through a bending and focusing system (or ''achromat''), through a second achromat, through an air-to-vacuum interface (the ''beam window''), and finally through the vernier steering system. Following an initial concept study for a beam director, a prototype permanent magnet 30/sup 0/ beam-bending achromat and prototype vernier steering magnet were designed and built. In volume II, copies are included of the funding instruments, requests for quotations, purchase orders, a complete set of as-built drawings, magnetic measurement reports, the concept design report, and the final report on the design and fabrication project. (LEW)

Younger, F.C.

1986-08-01T23:59:59.000Z

434

Carbon sequestration monitoring with acoustic double-difference waveform inversion: A case study on SACROC walkaway VSP data  

E-Print Network (OSTI)

Carbon sequestration monitoring with acoustic double-difference waveform inversion: A case study National Laboratory SUMMARY Geological carbon sequestration involves large-scale injection of carbon is crucial for ensuring safe and reliable carbon storage (Bickle et al., 2007). Conventional analysis of time

Malcolm, Alison

435

Multicomponent pre-stack seismic waveform inversion in transversely isotropic media using a non-dominated sorting genetic algorithm  

Science Journals Connector (OSTI)

......Anisotropic (VTI) model For the anisotropic case, we used the same...isotropic inversion but added anisotropic parameters to the Baxter shale region of the model that...When we assumed the Baxter shale to be anisotropic and added VTI parameters......

Amit Padhi; Subhashis Mallick

2014-01-01T23:59:59.000Z

436

Gauss-Jordan Method (GJ) Matrix Multiplication Linear Independence (LI) Rank Inverse Math 364: Principles of Optimization, Lecture 2  

E-Print Network (OSTI)

Gauss-Jordan Method (GJ) Matrix Multiplication Linear Independence (LI) Rank Inverse Math 364 University Spring 2012 Haijun Li Math 364: Principles of Optimization, Lecture 2 Spring 2012 1 / 15 #12;Gauss-Jordan and methods from linear algebra, including Gauss-Jordan method, matrix multiplication, linear independence

Li, Haijun

437

Velocity model-building by 3D frequency-domain, full-waveform inversion of wide-aperture seismic data  

E-Print Network (OSTI)

Velocity model-building by 3D frequency-domain, full-waveform inversion of wide-aperture seismic, any approach that helps to auto- mate and optimize velocity model-building will speed up the output . The most common approaches for building a PSDM velocity model rely on reflection traveltime tomography e

Vallée, Martin

438

Upper mantle structure of South America from joint inversion of waveforms and fundamental mode group velocities of Rayleigh waves  

E-Print Network (OSTI)

Upper mantle structure of South America from joint inversion of waveforms and fundamental mode tomographic S wave velocity model for the upper mantle beneath South America is presented. We developed three-dimensional (3-D) upper mantle S velocity model and a Moho depth model for South America, which

van der Lee, Suzan

439

Inverse modeling of emissions for local photo-oxidant pollution : Testing a new methodology with kriging constraints  

E-Print Network (OSTI)

Inverse modeling of emissions for local photo-oxidant pollution : Testing a new methodology. Abstract For chemistry-transport models operating at regional scales, surface emissions are the input data a methodology to optimize surface emissions at local scale i.e. to compute correction factors for the available

Menut, Laurent

440

Timing and Tectonic implications of basin inversion in the Nam Con Son Basin and adjacent areas, southern South China Sea  

E-Print Network (OSTI)

and Malay basins. Contraction in the Western NCS, West Natuna, and Malay basins was accommodated through reactivation of major basin-bounding fault systems that resulted in asymmetric fault-bend folding of syn- and early post-rift strata. Inversion...

Olson, Christopher Charles

2012-06-07T23:59:59.000Z

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


441

Full-Wave Seismic Data Assimilation: Theoretical Background and Recent Advances Abstract--The seismological inverse problem has much in  

E-Print Network (OSTI)

Full-Wave Seismic Data Assimilation: Theoretical Background and Recent Advances PO CHEN 1 Abstract for estimating seismic source and Earth structure parameters in the form of weak-con- straint generalized inverse, in which the seismic wave equation and the associated initial and boundary conditions are allowed to con

Chen, Po

442

Effects of adaptive refinement on the inverse EEG solution David M. Weinstein, Christopher R. Johnson and John A. Schmidt  

E-Print Network (OSTI)

on the surface of the scalp and the geometry and conductivity properties within the head, calculate the current and potential fields within the brain through an inverse procedure. To test these methods, we have constructed several finite element head models from magnetic resonance images (MRI) of a patient. The finite element

Utah, University of

443

PII S0016-7037(00)00772-4 Rare earth element variations resulting from inversion of pigeonite and subsolidus  

E-Print Network (OSTI)

PII S0016-7037(00)00772-4 Rare earth element variations resulting from inversion of pigeonite ion mass spectrometry study of the rare earth elements (REEs) in the minerals of two samples of lunar earth element (REE) composi- tions of the minerals in the subgroups of lunar ferroan anortho- sites

444

Three-dimensional self-potential inversion for subsurface DNAPL contaminant detection at the Savannah River Site, South Carolina  

E-Print Network (OSTI)

as an electrochemical source for the SP signals measured in this investigation. A 3-D self-potential inversion algorithm a long-term groundwater hazard. Remediation of sites contaminated with these chemicals therefore remains an important issue today. The goal of this investigation is to characterize underground contaminant

Sailhac, Pascal

445

Inversion of regional gravity gradient data over the Vredefort Impact Structure, South Africa Cericia Martinez and Yaoguo Li  

E-Print Network (OSTI)

Inversion of regional gravity gradient data over the Vredefort Impact Structure, South Africa- try data over the Vredefort Impact Structure in South Africa. With the rapidly growing field impact structure in South Africa. INTRODUCTION Gravity has long been used to study and characterize

446

Estimation of errors in the inverse modeling of accidental release of atmospheric pollutant: Application to the reconstruction  

E-Print Network (OSTI)

Estimation of errors in the inverse modeling of accidental release of atmospheric pollutant difficulty when inverting the source term of an atmospheric tracer dispersion problem is the estimation of the prior errors: those of the atmospheric transport model, those ascribed to the representativity

Paris-Sud XI, Université de

447

Joint inversion of seismic AVO and EM data for gas saturation estimation using a sampling-based stochastic model  

E-Print Network (OSTI)

hypothesis using a sampling-based stochastic model, based on a typical situation of gas explorationJoint inversion of seismic AVO and EM data for gas saturation estimation using a sampling- based stochastic model Jinsong Chen*, G. Michael Hoversten, and D. W. Vasco, Lawrence Berkeley National Laboratory

Chen, Jinsong

448

Influence of reduced carbon emissions and oxidation on the distribution of atmospheric CO2: Implications for inversion analyses  

E-Print Network (OSTI)

Influence of reduced carbon emissions and oxidation on the distribution of atmospheric CO2 carbon emissions. We used TransCom3 annual mean simulations from three transport models to evaluate carbon emission and oxidation processes in deriving inversion estimates of CO2 surface fluxes. Citation

Krakauer, Nir Y.

449

Perfluorocyclohexene Bridge in Inverse DiArylEthenes: One Step Synthesis through Pd-Catalysed C-H bond Activation, Joint Experimental and Theoretical Studies on  

E-Print Network (OSTI)

Perfluorocyclohexene Bridge in Inverse DiArylEthenes: One Step Synthesis through Pd-Catalysed C-H versus inverse (I-type)3,4 DAE (see Scheme 1). In addition, the nature of the ethene bridge can photochromic properties in which the ethene bridge is incorporated into a six-membered ring have been also

450

Introduction The Nature of Design  

E-Print Network (OSTI)

Introduction The Nature of Design The Concept of Entropy in MTC Design Complexity Conclusions The Role of Entropy in Design Theory and Methodology Waseem A. Khan Jorge Angeles Centre for Intelligent. Entropy in Design 1 #12;Introduction The Nature of Design The Concept of Entropy in MTC Design Complexity

Berlin,Technische Universität

451

A multiresolution spatial parametrization for the estimation of fossil-fuel carbon dioxide emissions via atmospheric inversions.  

SciTech Connect

The estimation of fossil-fuel CO2 emissions (ffCO2) from limited ground-based and satellite measurements of CO2 concentrations will form a key component of the monitoring of treaties aimed at the abatement of greenhouse gas emissions. To that end, we construct a multiresolution spatial parametrization for fossil-fuel CO2 emissions (ffCO2), to be used in atmospheric inversions. Such a parametrization does not currently exist. The parametrization uses wavelets to accurately capture the multiscale, nonstationary nature of ffCO2 emissions and employs proxies of human habitation, e.g., images of lights at night and maps of built-up areas to reduce the dimensionality of the multiresolution parametrization. The parametrization is used in a synthetic data inversion to test its suitability for use in atmospheric inverse problem. This linear inverse problem is predicated on observations of ffCO2 concentrations collected at measurement towers. We adapt a convex optimization technique, commonly used in the reconstruction of compressively sensed images, to perform sparse reconstruction of the time-variant ffCO2 emission field. We also borrow concepts from compressive sensing to impose boundary conditions i.e., to limit ffCO2 emissions within an irregularly shaped region (the United States, in our case). We find that the optimization algorithm performs a data-driven sparsification of the spatial parametrization and retains only of those wavelets whose weights could be estimated from the observations. Further, our method for the imposition of boundary conditions leads to a 10computational saving over conventional means of doing so. We conclude with a discussion of the accuracy of the estimated emissions and the suitability of the spatial parametrization for use in inverse problems with a significant degree of regularization.

Ray, Jaideep; Lee, Jina; Lefantzi, Sophia; Yadav, Vineet [Carnegie Institution for Science, Stanford, CA; Michalak, Anna M. [Carnegie Institution for Science, Stanford, CA; van Bloemen Waanders, Bart Gustaaf [Sandia National Laboratories, Albuquerque, NM; McKenna, Sean Andrew [IBM Research, Mulhuddart, Dublin 15, Ireland

2013-04-01T23:59:59.000Z

452

Exploring the effects of data quality, data worth, and redundancy of CO2 gas pressure and saturation data on reservoir characterization through PEST Inversion  

SciTech Connect

This study examined the impacts of reservoir properties on CO2 migration after subsurface injection and evaluated the possibility of characterizing reservoir properties using CO2 monitoring data such as saturation distribution. The injection reservoir was assumed to be located 1400-1500 m below the ground surface such that CO2 remained in the supercritical state. The reservoir was assumed to contain layers with alternating conductive and resistive properties, which is analogous to actual geological formations such as the Mount Simon Sandstone unit. The CO2 injection simulation used a cylindrical grid setting in which the injection well was situated at the center of the domain, which extended up to 8000 m from the injection well. The CO2 migration was simulated using the PNNL-developed simulator STOMP-CO2e (the water-salt-CO2 module). We adopted a nonlinear parameter estimation and optimization modeling software package, PEST, for automated reservoir parameter estimation. We explored the effects of data quality, data worth, and data redundancy on the detectability of reservoir parameters using CO2 saturation monitoring data, by comparing PEST inversion results using data with different levels of noises, various numbers of monitoring wells and locations, and different data collection spacing and temporal sampling intervals. This study yielded insight into the use of CO2 saturation monitoring data for reservoir characterization and how to design the monitoring system to optimize data worth and reduce data redundancy.

Fang, Zhufeng; Hou, Zhangshuan; Lin, Guang; Engel, David W.; Fang, Yilin; Eslinger, Paul W.

2014-04-01T23:59:59.000Z

453

Passive solar design handbook  

SciTech Connect

The Passive Solar Design Handbook, Volume Three updates Volume Two by presenting extensive new data on the optimum mix of conservation and solar direct gain, sunspaces, thermal storage walls, and solar radiation. The direct gain, thermal storage wall, and solar radiation data are greatly expanded relative to the Volume 2 coverage. The needed flexibility to analyze a variety of system designs is accommodated by the large number of reference designs to be encompassed - 94 in contrast to 6 in Volume two - and the large amount of sensitivity data for direct gain and sunspace systems - approximately 1100 separate curves.

Jones, R.W.

1981-01-01T23:59:59.000Z

454

2003 CBECS Sample Design  

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

Technical Information > Sample Design Technical Information > Sample Design How the Survey Was Conducted 2003 Commercial Buildings Energy Consumption Survey: Sample Design Introduction The Commercial Buildings Energy Consumption Survey (CBECS) is conducted quadrennially by the Energy Information Administration (EIA) to provide basic statistical information about energy consumption and expenditures in U.S. commercial buildings and information about energy-related characteristics of these buildings. The survey is based upon a sample of commercial buildings selected according to the sample design requirements described below. A “building,” as opposed to an “establishment,” is the basic unit of analysis for the CBECS because the building is the energy-consuming unit. The 2003 CBECS was the eighth survey conducted since 1979

455

Nuclear Facility Design  

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

Design Design FUNCTIONAL AREA GOAL: Headquarters and Field organizations and their contractors ensure that nuclear facilities are designed to assure adequate protection for the public, workers, and the environment from nuclear hazards. REQUIREMENTS:  10 CFR 830.120  10 CFR 830 subpart B  DOE O 413.3  DOE O 420.1B  DOE O 414.1C  DOE O 226.1  DOE M 426.1  DEAR 970-5404-2 Guidance:  DOE G 420.1-1  Project Management Practices, Integrated Quality ( Rev E, June 2003)  DOE Implementation Plan for DNSB Recommendation 2004-2 Performance Objective 1: Contractor Program Documentation Contracts between and the contractors who operate nuclear facilities contain adequate requirements concerning the conduct of nuclear facility safety design for nuclear facility capital projects and major modifications and the

456

Fundamentals of Designing Products  

Science Journals Connector (OSTI)

The term design has many connotations. Essentially it is the process of devising a product that fulfills as completely as possible the total requirements of the user, while satisfying the needs of the fabric...

Dominick V. Rosato P.E.; Donald V. Rosato PH.D.

2000-01-01T23:59:59.000Z

457

Chemoinformatics and Library Design  

Science Journals Connector (OSTI)

This chapter provides a brief overview of chemoinformatics and its applications to chemical library design. It is meant to be a ... data and data mining, molecular descriptors, chemical space and dimension reduct...

Joe Zhongxiang Zhou

2011-01-01T23:59:59.000Z

458

Designing for apartment access  

E-Print Network (OSTI)

Although social conflicts in corridor housing have long been acknowledged, few useful alternatives have been developed. The corridor remains a standard of apartment design. As a catalyst to the development of new alternatives, ...

Graham, John David Trevor

1980-01-01T23:59:59.000Z

459

Design and Engineering Issues  

Science Journals Connector (OSTI)

In this chapter, we have identified and discussed several important issues in designing and engineering an AOC system. Generally speaking, an autonomous entity in an AOC system contains several common functional ...

2005-01-01T23:59:59.000Z

460

Design of nanomanufacturing systems  

E-Print Network (OSTI)

Over 100 years of manufacturing knowledge and experience are available to a design engineer when considering the integration of a machine tool enabling macro-scale processes (milling, turning, welding, water-jet cutting) ...

Slocum, Alexander Henry, Jr

2010-01-01T23:59:59.000Z

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


461

Conceptual Design RM  

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

This Review Module is a tool that assists Department of Energy (DOE) federal project review teams in evaluating the adequacy of the conceptual design package prior to CD-1 approval. It focuses on...

462

Design for living  

Science Journals Connector (OSTI)

... living JohnWhitfield Robots can design and build each other, and co-operate like ants. John Whitfield doesn't know whether to applaud or worry. Robots that mimic the way ...

John Whitfield

2000-08-31T23:59:59.000Z

463

Alternative energy design toolkit  

E-Print Network (OSTI)

This thesis concerns the concepts, structure, and applications of the Alternative Energy Design Toolkit. The toolkit is aimed to provide a widely accessible, easy to use, flexible, yet powerful modeling environment for ...

Sukkasi, Sittha

2004-01-01T23:59:59.000Z

464

Protocol design contests  

E-Print Network (OSTI)

In fields like data mining and natural language processing, design contests have been successfully used to advance the state of the art. Such contests offer an opportunity to bring the excitement and challenges of protocol ...

Winstein, Keith

465

Design of assembly systems  

Science Journals Connector (OSTI)

The success of any assembly system depends on the translation of its design into an implemented working facility. The purpose of this chapter is to describe and explain the system elements and how they are com...

Shimon Y. Nof; Wilbert E. Wilhelm; Hans-Jrgen Warnecke

1997-01-01T23:59:59.000Z

466

Basic Roadway Design  

Science Journals Connector (OSTI)

Cost is always a concern when selecting a barrier design. Aesthetic barriers might have a higher upfront cost than standard steel barriers and may be more expensive to maintain. Weathering steel guardrails are an...

James L. Sipes; Matthew L. Sipes

2013-01-01T23:59:59.000Z

467

METALS DESIGN HANDBOOK DISCLAIMER  

Office of Scientific and Technical Information (OSTI)

1987. "Status Report on Creep-Rupture Tests of 2-114 Cr - 1 Mo Steel, Alloy 800H and Hastelloy X in Simulated HTGR-SCIC Helium," DOE-HTGR-85131, Rev. 0, August 1985. "HTGR Design...

468

Recursive relational urban design  

E-Print Network (OSTI)

This thesis proposes a methodology for the act of urban design that is recursive and centered around explicit relational operations, enabled by taking advantage of computation and parametric techniques. It contains iterative ...

Hillman, Dessen

2014-01-01T23:59:59.000Z

469

Challenges in agrochemicals design  

Science Journals Connector (OSTI)

Design of active ingredients is a multidimensional task. Sufficient target activity in combination with high bioavailability and no (or at least low) toxicological behaviour are prerequisites for promising candid...

KJ Schleifer

2013-03-01T23:59:59.000Z

470

Advanced Energy Design Guides  

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

One way to influence above-code One way to influence above-code exemplary energy performance in commercial buildings is to provide architects, engineers, and other design practitioners prescriptive guidance that indicates, measure by measure, how to do it. To this end, the U.S. Department of Energy (DOE) actively supports development of a series of AEDGs- publications designed to provide recommendations for achieving 30 to 50

471

PILOT: design and capabilities  

E-Print Network (OSTI)

The proposed design for PILOT is a general-purpose, wide-field 1 degree 2.4m, f/10 Ritchey-Chretien telescope, with fast tip-tilt guiding, for use 0.5-25 microns. The design allows both wide-field and diffraction-limited use at these wavelengths. The expected overall image quality, including median seeing, is 0.28-0.3" FWHM from 0.8-2.4 microns. Point source sensitivities are estimated.

W. Saunders; P. R. Gillingham; A. J. McGrath; J. W. V. Storey; J. S. Lawrence

2008-01-29T23:59:59.000Z

472

Wind Turbine Blade Design  

K-12 Energy Lesson Plans and Activities Web site (EERE)

Blade engineering and design is one of the most complicated and important aspects of modern wind turbine technology. Engineers strive to design blades that extract as much energy from the wind as possible throughout a range of wind speeds and gusts, yet are still durable, quiet and cheap. A variety of ideas for building turbines and teacher handouts are included in this document and at the Web site.

473

CREATIVE CONCEPTUAL DESIGN: EXTENDING THE SCOPE BY INFUSED DESIGN  

E-Print Network (OSTI)

1 CREATIVE CONCEPTUAL DESIGN: EXTENDING THE SCOPE BY INFUSED DESIGN Offer Shai School of Mechanical infused design that guarantees generating design solutions by transforming systems and methods from remote. This process is partially supported by a computer tool. We describe the method of infused design and illustrate

Shai, Offer

474

Improving Design with Agents, Improving Agents by Design  

E-Print Network (OSTI)

DCB 1 WPI Improving Design with Agents, or, Improving Agents by Design David C. Brown AI in Design ASSUMPTION ? Assume that the design environment is built using agents. i.e., situated, autonomous, flexible ?'s future design and synthesis environment will be built as a real multi-agent system. In what follows, we

Brown, David C.

475

1 Design by Autonomous Learning Design by Autonomous Learning  

E-Print Network (OSTI)

1 Design by Autonomous Learning Design by Autonomous Learning: Modeling Environment for Design Box 123, Broadway NSW 2007, Australia Email: {prabhakar, gjsmith}@socs.uts.edu.au 1. Design by Autonomous Learning An important area of expertise robots can provide is design of artefacts in physical

Prabhakar, Sattiraju

476

Evaluating Design Project Creativity in Engineering Design Courses Postdoctoral Fellow  

E-Print Network (OSTI)

Evaluating Design Project Creativity in Engineering Design Courses I. Chiu Postdoctoral Fellow. A goal of engineering design courses is to teach creativity, or at least creativity methods, e an engineering design course, such as for a design project. In this paper, we discuss creativity and approaches

Salustri, Filippo A.

477

Inverse cascade and symmetry breaking in rapidly-rotating Boussinesq convection  

E-Print Network (OSTI)

In this paper we present numerical simulations of rapidly-rotating Rayleigh-B\\'enard convection in the Boussinesq approximation with stress-free boundary conditions. At moderately low Rossby number and large Rayleigh number, we show that a large-scale depth-invariant flow is formed, reminiscent of the condensate state observed in two-dimensional flows. We show that the large-scale circulation shares many similarities with the so-called vortex, or slow-mode, of forced rotating turbulence. Our investigations show that at a fixed rotation rate the large-scale vortex is only observed for a finite range of Rayleigh numbers, as the quasi-two-dimensional nature of the flow disappears at very high Rayleigh numbers. We observe slow vortex merging events and find a non-local inverse cascade of energy in addition to the regular direct cascade associated with fast small-scale turbulent motions. Finally, we show that cyclonic structures are dominant in the small-scale turbulent flow and this symmetry breaking persists in ...

Favier, B; Proctor, M R E

2014-01-01T23:59:59.000Z

478

IMAGING STARSPOT EVOLUTION ON KEPLER TARGET KIC 5110407 USING LIGHT-CURVE INVERSION  

SciTech Connect

The Kepler target KIC 5110407, a K-type star, shows strong quasi-periodic light curve fluctuations likely arising from the formation and decay of spots on the stellar surface rotating with a period of 3.4693 days. Using an established light-curve inversion algorithm, we study the evolution of the surface features based on Kepler space telescope light curves over a period of two years (with a gap of .25 years). At virtually all epochs, we detect at least one large spot group on the surface causing a 1%-10% flux modulation in the Kepler passband. By identifying and tracking spot groups over a range of inferred latitudes, we measured the surface differential rotation to be much smaller than that found for the Sun. We also searched for a correlation between the 17 stellar flares that occurred during our observations and the orientation of the dominant surface spot at the time of each flare. No statistically significant correlation was found except perhaps for the very brightest flares, suggesting that most flares are associated with regions devoid of spots or spots too small to be clearly discerned using our reconstruction technique. While we may see hints of long-term changes in the spot characteristics and flare statistics within our current data set, a longer baseline of observation will be needed to detect the existence of a magnetic cycle in KIC 5110407.

Roettenbacher, Rachael M.; Monnier, John D. [Department of Astronomy, University of Michigan, Ann Arbor, MI 48109 (United States)] [Department of Astronomy, University of Michigan, Ann Arbor, MI 48109 (United States); Harmon, Robert O. [Department of Physics and Astronomy, Ohio Wesleyan University, Delaware, OH 43015 (United States)] [Department of Physics and Astronomy, Ohio Wesleyan University, Delaware, OH 43015 (United States); Barclay, Thomas; Still, Martin, E-mail: rmroett@umich.edu [NASA Ames Research Center, Moffett Field, CA 94035 (United States)] [NASA Ames Research Center, Moffett Field, CA 94035 (United States)

2013-04-10T23:59:59.000Z

479

Inverse modeling and forecasting for the exploitation of the Pauzhetsky geothermal field, Kamchatka, Russia  

SciTech Connect

A three-dimensional numerical model of the Pauzhetsky geothermal field has been developed based on a conceptual hydrogeological model of the system. It extends over a 13.6-km2 area and includes three layers: (1) a base layer with inflow; (2) a geothermal reservoir; and (3) an upper layer with discharge and recharge/infiltration areas. Using the computer program iTOUGH2 (Finsterle, 2004), the model is calibrated to a total of 13,675 calibration points, combining natural-state and 1960-2006 exploitation data. The principal model parameters identified and estimated by inverse modeling include the fracture permeability and fracture porosity of the geothermal reservoir, the initial natural upflow rate, the base-layer porosity, and the permeabilities of the infiltration zones. Heat and mass balances derived from the calibrated model helped identify the sources of the geothermal reserves in the field. With the addition of five makeup wells, simulation forecasts for the 2007-2032 period predict a sustainable average steam production of 29 kg/s, which is sufficient to maintain the generation of 6.8 MWe at the Pauzhetsky power plant.

Finsterle, Stefan; Kiryukhin, A.V.; Asaulova, N.P.; Finsterle, S.

2008-04-01T23:59:59.000Z

480

Parameter estimation from flowing fluid temperature logging data in unsaturated fractured rock using multiphase inverse modeling  

SciTech Connect

A simple conceptual model has been recently developed for analyzing pressure and temperature data from flowing fluid temperature logging (FFTL) in unsaturated fractured rock. Using this conceptual model, we developed an analytical solution for FFTL pressure response, and a semianalytical solution for FFTL temperature response. We also proposed a method for estimating fracture permeability from FFTL temperature data. The conceptual model was based on some simplifying assumptions, particularly that a single-phase airflow model was used. In this paper, we develop a more comprehensive numerical model of multiphase flow and heat transfer associated with FFTL. Using this numerical model, we perform a number of forward simulations to determine the parameters that have the strongest influence on the pressure and temperature response from FFTL. We then use the iTOUGH2 optimization code to estimate these most sensitive parameters through inverse modeling and to quantify the uncertainties associated with these estimated parameters. We conclude that FFTL can be utilized to determine permeability, porosity, and thermal conductivity of the fracture rock. Two other parameters, which are not properties of the fractured rock, have strong influence on FFTL response. These are pressure and temperature in the borehole that were at equilibrium with the fractured rock formation at the beginning of FFTL. We illustrate how these parameters can also be estimated from FFTL data.

Mukhopadhyay, S.; Tsang, Y.; Finsterle, S.

2009-01-15T23:59:59.000Z

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481

Optimization of operating conditions for steam turbine using an artificial neural network inverse  

Science Journals Connector (OSTI)

Abstract The useful life (UL) of the failure assessment in blades of steam turbines is optimized using the artificial intelligence. The objective of this paper is to develop an integrated approach using artificial neural network inverse (ANNi) coupling with a Nelder Mead optimization method to estimate the resonance stress when the UL of the blades is required. The proposed method \\{ANNi\\} is a new tool which inverts the artificial neural network (ANN). Firstly, It is necessary to build the artificial neural network (ANN) that simulates the output parameter (UL). ANN's model is constituted of feedforward network with one hidden layer to calculate the output of the process when input parameters are well known, then inverting ANN. The \\{ANNi\\} could be used as a tool to estimate the optimal unknown parameter required (resonance stress). Very low percentage of error and short computing time are precise and efficient, make this methodology (ANNi) attractive to be applied for control on line the UL of the system and constitutes a very promising framework for finding set of good solutions.

Y.El. Hamzaoui; J.A. Rodrguez; J.A. Hernndez; Victor Salazar

2015-01-01T23:59:59.000Z

482

Derivation of coarse-grained potentials via multistate iterative Boltzmann inversion  

E-Print Network (OSTI)

In this work, an extension to the standard iterative Boltzmann inversion (IBI) method to derive coarse-grained potentials is proposed. It is shown that the inclusion of target data from multiple states yields a less state-dependent potential, and is thus better suited to simulate systems over a range of thermodynamic states than the standard IBI method. The inclusion of target data from multiple states forces the algorithm to sample regions of potential phase space that match the radial distribution function at multiple state points, thus producing a derived potential that is more representative of the underlying potential interactions. It is shown that the algorithm is able to converge to the true potential for a system where the underlying potential is known. It is also shown that potentials derived via the proposed method better predict the behavior of n-alkane chains than those derived via the standard method. Additionally, through the examination of alkane monolayers, it is shown that the relative weight given to each state in the fitting procedure can impact bulk system properties, allowing the potentials to be further tuned in order to match the properties of reference atomistic and/or experimental systems.

Timothy C. Moore; Christopher R. Iacovella; Clare McCabe

2014-10-07T23:59:59.000Z

483

Rank deficiency and Tikhonov regularization in the inverse problem for gravitational-wave bursts  

E-Print Network (OSTI)

Coherent techniques for searches of gravitational-wave bursts effectively combine data from several detectors, taking into account differences in their responses. The efforts are now focused on the maximum likelihood principle as the most natural way to combine data, which can also be used without prior knowledge of the signal. Recent studies however have shown that straightforward application of the maximum likelihood method to gravitational waves with unknown waveforms can lead to inconsistencies and unphysical results such as discontinuity in the residual functional, or divergence of the variance of the estimated waveforms for some locations in the sky. So far the solutions to these problems have been based on rather different physical arguments. Following these investigations, we now find that all these inconsistencies stem from rank deficiency of the underlying network response matrix. In this paper we show that the detection of gravitational-wave bursts with a network of interferometers belongs to the category of ill-posed problems. We then apply the method of Tikhonov regularization to resolve the rank deficiency and introduce a minimal regulator which yields a well-conditioned solution to the inverse problem for all locations on the sky.

Malik Rakhmanov

2006-09-19T23:59:59.000Z

484

Synchrotron and inverse-Compton emissions from pairs formed in GRB afterglows (analytical treatment)  

E-Print Network (OSTI)

We calculate the synchrotron and inverse-Compton emissions from pairs formed in GRB afterglows from high-energy photons (above 100 MeV), assuming a power-law photon spectrum C_nu ~ nu^{-2} and considering only the pairs generated from primary high-energy photons. The essential properties of these pairs (number, minimal energy, cooling energy, distribution with energy) and of their emission (peak flux, spectral breaks, spectral slope) are set by the observables GeV fluence Phi (t) = Ft and spectrum, and by the Lorentz factor Gamma and magnetic field B of the source of high-energy photons, at observer-time t. Optical and X-ray pseudo--light-curves F_nu (Gamma) are calculated for given B; proper synchrotron self-Compton light-curves are calculated by setting the dynamics Gamma(t) of the high-energy photons source to be that of a decelerating, relativistic shock. It is found that the emission from pairs can accommodate the flux and decays of the optical flashes measured during the prompt (GRB) phase and of the fa...

Panaitescu, A

2014-01-01T23:59:59.000Z

485

Adaptive dynamic inversion of nonlinear systems subjected to control saturation constraints  

E-Print Network (OSTI)

contributions by Narendra and Annaswamy [2], Astrom and Wittenmark [3], Sastry [4], Ioannou [5], Krstic, Kanellakopoulos and Kokotovic [6] and Khalil [7], to name a few. Feedback linearization is an approach to nonlinear control design, which has attracted a...

Tandale, Monish Deepak

2007-09-17T23:59:59.000Z

486

Application of Inverse Models for Long-Term-Energy-Monitoring in the German Enbau: Monitor Project  

E-Print Network (OSTI)

. a detailed monitoring takes place during the first two years of operation. after this period a long-term energy monitoring was established in order to evaluate the sustainability of the innovative designs and systems. fraunhofer ise defined enhanced...

Neumann, C.; Herkel, S.; Lohnert, G.; Voss, K.; Wagner, A.

2006-01-01T23:59:59.000Z

487

Sharing tacit design knowledge in a distributed design environment  

E-Print Network (OSTI)

Throughout the life-cycle of a design project, architects rely heavily on their tacit design knowledge to support design decisions. Tacit knowledge is highly personal and implicit. As such, it encompasses expertise, intuitive understanding...

Woo, Jeong-Han

2006-10-30T23:59:59.000Z

488

Green Buildings: Construction Design Firms' Implementation of Sustainable Design Standards  

E-Print Network (OSTI)

This paper is written to show the importance of green buildings and therefore the need for sustainable design. The paper describes why a construction design firm must take the steps necessary to properly integrate these sustainable design standards...

Malone, Nathan

2008-12-19T23:59:59.000Z

489

AIDP -Apple Interface Design Project  

E-Print Network (OSTI)

AIDP - Apple Interface Design Project AIDP - Apple Interface Design Project m 92-95 m Joy Mountford m Design Centre, Advanced Technology Group m Apple's Industrial Design Group "Encourage ProjectThe Project m Bridge the gulf between the physical and virtual worlds - Apple m Design a new way

Tollmar, Konrad

490

Design documentation: Krypton encapsulation preconceptual design  

SciTech Connect

US EPA regulations limit the release of Krypton-85 to the environment from commercial facilities after January 1, 1983. In order to comply with these regulations, Krypton-85, which would be released during reprocessing of commercial nuclear fuel, must be collected and stored. Technology currently exists for separation of krypton from other inert gases, and for its storage as a compressed gas in steel cylinders. The requirements, which would be imposed for 100-year storage of Krypton-85, have led to development of processes for encapsulation of krypton within a stable solid matrix. The objective of this effort was to provide preconceptual engineering designs, technical evaluations, and life cycle costing data for comparison of two alternate candidate processes for encapsulation of Krypton-85. This report has been prepared by The Ralph M. Parsons Company for the US Department of Energy.

Knecht, D.A. [Idaho National Engineering Lab., Idaho Falls, ID (United States)

1994-10-01T23:59:59.000Z

491

A motion planner for a redundant mobile manipulator using the inverse kinematics  

E-Print Network (OSTI)

in industry like welding robot, painting robot, pick-and- place robot, and also in space robotics. Most of the robots are designed with a specific application in mind and detailed knowledge of working environment is required. Fur- thermore the control... in industry like welding robot, painting robot, pick-and- place robot, and also in space robotics. Most of the robots are designed with a specific application in mind and detailed knowledge of working environment is required. Fur- thermore the control...

Gupta, Gautam Jagannath

2012-06-07T23:59:59.000Z

492

Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale D. J. Kapner,* T. S. Cook, E. G. Adelberger, J. H. Gundlach, B. R. Heckel, C. D. Hoyle, and H. E. Swanson  

E-Print Network (OSTI)

Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale D. J. Kapner,* T-balance experiments to test the gravitational inverse-square law at separations between 9.53 mm and 55 m, probing of the gravitational inverse-square law we report in this Letter. Our tests were made with a substantially upgraded ver

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

493

18 - Seismic Design  

Science Journals Connector (OSTI)

Abstract The damages and disruptions of the subsea pipelines caused by an earthquake may have severe effects on the service life, since it may lead to a significant financial loss due to service interruptions, fires, explosions, and environmental contamination. In general, the seismic analyses of the permanent ground deformation for buried and unburied pipes, and seismic ground waves for unburied pipes are required for designing pipeline systems. Many subsea pipelines are often buried for stability and mechanical protection in the shallow water area; otherwise, they are laid on the seabed. This chapter addresses available seismic design codes, standards and design criteria for subsea pipelines, a general design and analysis methodology for fault crossing and seismic ground wave, design and analysis examples using a static model for buried pipe subjected to permanent ground deformations due to the foundation failure, a time history dynamic model for unburied pipelines subjected to seismic ground waves, the mitigation methods for subsea pipelines to avoid seismic hazards including modifying loading and boundary conditions, modifying pipeline configuration, modifying pipeline route selection, and improving emergency response.

Qiang Bai; Yong Bai

2014-01-01T23:59:59.000Z

494

Energy exchange between a laser beam and charged particles using inverse transition radiation and method for its use  

DOE Patents (OSTI)

A method and apparatus for exchanging energy between relativistic charged particles and laser radiation using inverse diffraction radiation or inverse transition radiation. The beam of laser light is directed onto a particle beam by means of two optical elements which have apertures or foils through which the particle beam passes. The two apertures or foils are spaced by a predetermined distance of separation and the angle of interaction between the laser beam and the particle beam is set at a specific angle. The separation and angle are a function of the wavelength of the laser light and the relativistic energy of the particle beam. In a diffraction embodiment, the interaction between the laser and particle beams is determined by the diffraction effect due to the apertures in the optical elements. In a transition embodiment, the interaction between the laser and particle beams is determined by the transition effect due to pieces of foil placed in the particle beam path.

Kimura, Wayne D. (Bellevue, WA); Romea, Richard D. (Seattle, WA); Steinhauer, Loren C. (Bothell, WA)

1998-01-01T23:59:59.000Z

495

Preliminary Safety Design RM  

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

Preliminary Safety Design Review Module Preliminary Safety Design Review Module March 2010 CD-0 O 0 OFFICE OF Pr C CD-1 F ENVIRO Standard R reliminar Rev Critical Decis CD-2 M ONMENTAL Review Plan ry Safety view Module sion (CD) Ap CD March 2010 L MANAGE n (SRP) y Design e pplicability D-3 EMENT CD-4 Post Ope eration Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental Management (EM) projects are identified early and addressed proactively. The internal EM project review process encompasses key milestones established by DOE O 413.3A, Change 1, Program and Project Management for the Acquisition of Capital Assets, DOE-STD-1189-2008,

496

Seismic Design Expectations Report  

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

Seismic Design Expectations Report Seismic Design Expectations Report March 2010 CD- This Rev of th Se -0 view Module w he overall Cons OFFICE O eismic De C CD-1 was used to dev struction Projec inco OF ENVIRO Standard esign Exp Critical Deci CD-2 M velop the Revie ct Review cond orporated in the ONMENTA Review Pla pectation ision (CD) A C March 2010 ew Plan for the ducted in 2009 e current versio AL MANAG an (SRP) ns Report Applicability D-3 e Oak Ridge Bl 9. Lessons lear on of the Modu GEMENT t (SDER) CD-4 ldg. 3019 60% rned from this r ule. ) Post Ope design review review have be eration w as part een Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental

497

Conceptual Safety Design RM  

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

Conceptual Safety Design Review Module Conceptual Safety Design Review Module March 2010 CD-0 O 0 OFFICE OF C C CD-1 F ENVIRO Standard R Conceptua Rev Critical Decis CD-2 M ONMENTAL Review Plan al Safety view Module sion (CD) Ap CD March 2010 L MANAGE n (SRP) y Design e pplicability D-3 EMENT CD-4 Post Ope eration Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental Management (EM) projects are identified early and addressed proactively. The internal EM project review process encompasses key milestones established by DOE O 413.3A, Change 1, Program and Project Management for the Acquisition of Capital

498

Safety Design Strategy RM  

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

Safety Design Strategy Review Module Safety Design Strategy Review Module March 2010 OFFICE OF ENVIRONMENTAL MANAGEMENT Standard Review Plan (SRP) Safety Design Strategy (SDS) Review Module Critical Decision (CD) Applicability CD-0 CD-1 CD-2 CD-3 CD-4 Post Operation March 2010 Standard Review Plan, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental Management (EM) projects are identified early and addressed proactively. The internal EM project review process encompasses key milestones established by DOE O 413.3A, Change 1, Program and Project Management for the Acquisition of Capital Assets, DOE-STD-1189-2008,

499

Watermark Designs, Ltd.  

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

Watermark Designs, Ltd. Watermark Designs, Ltd. (Showerheads) Issued: May 29,2012 BEFORE THE U.S. DEI 1 ARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ORDER Case Number: 2011-SW-2908 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Watermark Designs, Ltd. ("Respondent"). The Compromise Agreement resolves the case initiated against Respondent pursuant to I 0 C.F.R. § 429.122 by Notice of Proposed Civil Penalty, alleging that Respondent distributed in commerce in the United States the Waterfall or Deluge Spout showerhead, basic model SH-FAL90, which failed to meet the applicable standard for water usage. See 10 C.F.R. § 430.32(p).

500

Design of a bicycle rig  

E-Print Network (OSTI)

A design of a bicycle (bike) rig was conducted. This bike rig is designed to be used for aerodynamics measurement testing of bicycles, cyclists and cycling related items in a wind tunnel. This paper discusses the design ...

Racz, Rastislav

2010-01-01T23:59:59.000Z