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Note: This page contains sample records for the topic "obtain potentially sensitive" 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

U-017: HP MFP Digital Sending Software Lets Local Users Obtain Potentially  

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

7: HP MFP Digital Sending Software Lets Local Users Obtain 7: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information U-017: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information October 24, 2011 - 12:30pm Addthis PROBLEM: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information . PLATFORM: HP MFP Digital Sending Software v4.91.21 and all previous 4.9x versions ABSTRACT: A vulnerability was reported in HP MFP Digital Sending Software. A local user can obtain potentially sensitive information. reference LINKS: HP Advisory ID: c03052686 SecurityTracker Alert ID: 1026228 CVE-2011-3163 IMPACT ASSESSMENT: Medium Discussion: A potential security vulnerability has been identified with HP MFP Digital Sending Software running on Windows. The vulnerability could result in

2

U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially  

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

3: PHP Command Parameter Bug Lets Remote Users Obtain 3: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code May 7, 2012 - 7:00am Addthis PROBLEM: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code PLATFORM: Prior to 5.3.12 and 5.4.2 ABSTRACT: A vulnerability was reported in PHP. A remote user can obtain potentially sensitive information. A remote user can execute arbitrary code on the target system. reference LINKS: SecurityTracker Alert ID: 1027022 CVE-2012-1823 CVE-2012-2311 IMPACT ASSESSMENT: High Discussion: A remote user can submit a specially crafted request containing a command

3

U-053: Linux kexec Bugs Let Local and Remote Users Obtain Potentially  

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

53: Linux kexec Bugs Let Local and Remote Users Obtain 53: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information U-053: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information December 7, 2011 - 7:30am Addthis PROBLEM: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information . PLATFORM: Red Hat Enterprise Linux Desktop (v. 6) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat Enterprise Linux Server (v. 6) Red Hat Enterprise Linux Workstation (v. 6) ABSTRACT: Several vulnerabilities were reported in Linux kexec. A remote or local user can obtain potentially sensitive information. reference LINKS: Red Hat Security Advisory: RHSA-2011:1532-3 SecurityTracker Alert ID: 1026375 IMPACT ASSESSMENT: Medium Discussion: Kdump uses the SSH "StrictHostKeyChecking=no" option when dumping to SSH

4

T-651: Blue Coat ProxySG Discloses Potentially Sensitive Information in  

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

51: Blue Coat ProxySG Discloses Potentially Sensitive 51: Blue Coat ProxySG Discloses Potentially Sensitive Information in Core Files T-651: Blue Coat ProxySG Discloses Potentially Sensitive Information in Core Files June 21, 2011 - 3:28pm Addthis PROBLEM: Core files produced by ProxySG include unencrypted sensitive data such as keys and end user authentication data. PLATFORM: Version(s): 6.1, 6.2 ABSTRACT: A vulnerability was reported in Blue Coat ProxySG. A local user can obtain potentially sensitive information. reference LINKS: SecurityTracker Alert ID: 1025679 Security Advisories ID: SA56 ProxySG SA56 TSL ID: TSL20110614-02 IM PACT ASSESSMENT: High Discussion: In version 6.1 and 6.2, the software includes information from the secure heap when writing core files. A user with access to the core file can obtain potentially sensitive information, including keys and HTTP

5

Biomarkers of acute respiratory allergen exposure: Screening for sensitization potential  

Science Conference Proceedings (OSTI)

Effective hazard screening will require the development of high-throughput or in vitro assays for the identification of potential sensitizers. The goal of this preliminary study was to identify potential biomarkers that differentiate the response to allergens vs non-allergens following an acute exposure in naive individuals. Female BALB/c mice received a single intratracheal aspiration exposure to Metarhizium anisopliae crude antigen (MACA) or bovine serum albumin (BSA) in Hank's Balanced Salt Solution (HBSS) or HBSS alone. Mice were terminated after 1, 3, 6, 12, 18 and 24 h. Bronchoalveolar lavage fluid (BALF) was evaluated to determine total and differential cellularity, total protein concentration and LDH activity. RNA was isolated from lung tissue for microarray analysis and qRT-PCR. MACA administration induced a rapid increase in BALF neutrophils, lymphocytes, eosinophils and total protein compared to BSA or HBSS. Microarray analysis demonstrated differential expression of genes involved in cytokine production, signaling, inflammatory cell recruitment, adhesion and activation in 3 and 12 h MACA-treated samples compared to BSA or HBSS. Further analyses allowed identification of approx 100 candidate biomarker genes. Eleven genes were selected for further assessment by qRT-PCR. Of these, 6 demonstrated persistently increased expression (Ccl17, Ccl22, Ccl7, Cxcl10, Cxcl2, Saa1), while C3ar1 increased from 6-24 h. In conclusion, a single respiratory exposure of mice to an allergenic mold extract induces an inflammatory response which is distinct in phenotype and gene transcription from the response to a control protein. Further validation of these biomarkers with additional allergens and irritants is needed. These biomarkers may facilitate improvements in screening methods.

Pucheu-Haston, Cherie M., E-mail: Pucheu-Haston.Cherie@epa.go [Curriculum in Toxicology, University of North Carolina-Chapel Hill, CB 7270, Chapel Hill, NC 27599-7270 (United States); Copeland, Lisa B.; Vallanat, Beena; Boykin, Elizabeth; Ward, Marsha D.W. [National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711 (United States)

2010-04-15T23:59:59.000Z

6

V-068: Citrix CloudPlatform Logs Potentially Sensitive Information in the  

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

8: Citrix CloudPlatform Logs Potentially Sensitive Information 8: Citrix CloudPlatform Logs Potentially Sensitive Information in the Log File V-068: Citrix CloudPlatform Logs Potentially Sensitive Information in the Log File January 14, 2013 - 12:15am Addthis PROBLEM: Citrix CloudPlatform Logs Potentially Sensitive Information in the Log File PLATFORM: Citrix CloudStack and CloudPlatform up to and including 3.0.5. ABSTRACT: A vulnerability was reported in Citrix CloudPlatform. REFERENCE LINKS: Document ID: CTX136163 SecurityTracker Alert ID: 1027978 CVE-2012-5616 IMPACT ASSESSMENT: Medium DISCUSSION: A vulnerability has been identified in Citrix CloudPlatform, formerly known as Citrix CloudStack, that could result in security-sensitive information being logged during the normal operation of the CloudPlatform server. IMPACT:

7

Generation of Moist Potential Vorticity in Extratropical Cyclones. Part II: Sensitivity to Moisture Distribution  

Science Conference Proceedings (OSTI)

The effects of different moisture distributions on the generation of moist potential vorticity (MPV) in extratropical cyclones are examined by numerical simulations. These sensitivity experiments show that low-level negative MPV generation ...

Han-Ru Cho; Zuohao Cao

1998-02-01T23:59:59.000Z

8

Interpretation and implementation of an ion sensitive probe as a plasma potential diagnostic  

E-Print Network (OSTI)

An ion sensitive probe (ISP) is developed as a robust diagnostic for measuring plasma potentials (?[subscript P]) in magnetized plasmas. The ISP relies on the large difference between the ion and electron gyroradii ...

Ochoukov, Roman Igorevitch

9

Commercial potential for thermal & magnetic sensitive polymer in drug delivery applications  

E-Print Network (OSTI)

Thermal and magnetically sensitive polymers are a new class of materials with unique properties suitable for applications in drug delivery. Specifically, these polymers can be combined with a drug reservoir to make a drug ...

Edward, Jonathan M. (Jonathan Mark)

2008-01-01T23:59:59.000Z

10

Vibrational relaxation in COHe collisions: Sensitivity to interaction potential and details of quantum calculations  

E-Print Network (OSTI)

that have kinetic energies less than some particular cutoff energy, Ewf , and for the potential rep work we used Ewf =18.40 Ry, 14.06 Ry, 14.06 Ry, 16.73 Ry, 14.06 Ry, and 16.73 Ry were used to study Xe

Krems, Roman

11

Sensitive Species  

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

Sensitive Species Sensitive Species Sensitive Species By avoiding or minimizing the impact of Laboratory activities on sensitive species, LANL can potentially reduce the possibility of these species being upgraded to federal protection. April 12, 2012 sensitive species The bald eagle is one of our sensitive species. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Sensitive species are plants and animals that are protected at the state or local level. Keeping sensitive species safe We strive to minimize the impact of Laboratory operations on sensitive species, which are plants and animals not protected by the federal Endangered Species Act or the Migratory Bird Treaty Act, but are protected on state or local levels.

12

Potential  

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

and and Frictional Drag on a Floating Sphere in a Flowing Plasma I. H. Hutchinson Plasma Science and Fusion Center Massachusetts Institute of Technology, Cambridge, MA, USA The interaction of an ion-collecting sphere at floating potential with a flowing colli- sionless plasma is investigated using the "Specialized Coordinate Electrostatic Particle and Thermals In Cell" particle-in-cell code SCEPTIC[1, 2]. Code calculations are given of potential and the total force exerted on the sphere by the flowing plasma. This force is of crucial importance to the problem of dusty plasmas, and the present results are the first for a collisionless plasma to take account of the full self-consistent potential. They reveal discrepancies amounting to as large as 20% with the standard analytic expressions, in parameter regimes where the analytic approximations might have been expected

13

U-240: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain  

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

0: Apple Remote Desktop Encryption Failure Lets Remote Users 0: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain Potentially Sensitive Information U-240: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain Potentially Sensitive Information August 21, 2012 - 7:00am Addthis PROBLEM: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain Potentially Sensitive Information PLATFORM: Apple Remote Desktop after 3.5.1 and prior to 3.6.1 ABSTRACT: A remote user can monitor potentially sensitive information. reference LINKS: Apple.com Apple Article: HT5433 SecurityTracker Alert ID: 1027420 CVE-2012-0681 IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Apple Remote Desktop. When a user connects to a third-party VNC server with the 'Encrypt all network data' setting enabled, network data is not encrypted. A remote user monitoring the

14

V-202: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain  

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

2: Cisco Video Surveillance Manager Bugs Let Remote Users 2: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain Potentially Sensitive Information V-202: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain Potentially Sensitive Information July 25, 2013 - 2:52am Addthis PROBLEM: A remote user can obtain potentially sensitive information and modify some configuration settings. A remote user can exploit this to create, modify, and remove camera feeds, archives, logs, and users. PLATFORM: Cisco Video Surveillance Manager 7.1, 7.5 ABSTRACT: Two vulnerabilities were reported in Cisco Video Surveillance Manager REFERENCE LINKS: Security Tracker Alert ID: 1028827 CVE-2013-3429 CVE-2013-3430 CVE-2013-3431 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is due to an access control error that occurred. The

15

U-076: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and  

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

76: OpenSSL Bugs Let Remote Users Deny Service, Obtain 76: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code U-076: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code January 6, 2012 - 8:15am Addthis PROBLEM: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code PLATFORM: OpenSSL prior to 0.9.8s; 1.x prior to 1.0.0f ABSTRACT: A remote user may be able to execute arbitrary code on the target system. reference LINKS: SecurityTracker Alert ID: 1026485 OpenSSL Security Advisory IMPACT ASSESSMENT: High Discussion: Several vulnerabilities were reported in OpenSSL. A remote user can cause denial of service conditions. A remote user can obtain sensitive information. A remote user may be able to execute arbitrary code on the

16

GENERALIZED SUPPORT SET INVARIANCY SENSITIVITY ...  

E-Print Network (OSTI)

Type II sensitivity analysis (Support Set Invariancy Sen- ..... u are obtained by solving the following auxiliary. LO problems, respectively: ?LP l. = min. {. ?|(x(1) ...

17

U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain  

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

42: HP Onboard Administrator Bugs Let Remote Users Gain Access, 42: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks April 6, 2012 - 7:00am Addthis PROBLEM: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks PLATFORM: HP Onboard Administrator (OA) up to and including v3.32 ABSTRACT: A remote user can obtain potentially sensitive information. reference LINKS: HP Support Document ID: c03263573 SecurityTracker Alert ID: 1026889 CVE-2012-0128, CVE-2012-0129, CVE-2012-0130 IMPACT ASSESSMENT: High Discussion: Several vulnerabilities were reported in HP Onboard Administrator. A remote

18

U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain  

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

2: HP Onboard Administrator Bugs Let Remote Users Gain Access, 2: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks April 6, 2012 - 7:00am Addthis PROBLEM: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks PLATFORM: HP Onboard Administrator (OA) up to and including v3.32 ABSTRACT: A remote user can obtain potentially sensitive information. reference LINKS: HP Support Document ID: c03263573 SecurityTracker Alert ID: 1026889 CVE-2012-0128, CVE-2012-0129, CVE-2012-0130 IMPACT ASSESSMENT: High Discussion: Several vulnerabilities were reported in HP Onboard Administrator. A remote

19

NIST: NIF - Water Sensitivity  

Science Conference Proceedings (OSTI)

Water Sensitivity. Neutrons are extremely sensitive to small amounts of water. To quantify and calibrate this sensitivity we ...

20

BUSINESS SENSITIVE  

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

Chairman, Subcommittee on Energy Chairman, Subcommittee on Energy and Water Development and Water Development Committee on Appropriations Committee on Appropriations U.S. House of Representatives U.S. Senate Washington, DC 20515 Washington, DC 20510 Subject: Section 311 Notification of Pending Public Announcement of Selection of Applications for Negotiation of Financial Assistance Awards Dear Chairmen Rogers, Inouye, Frelinghuysen and Feinstein: In accordance with Section 311 of P.L. 111-85, no earlier than three full business days from the date of this notification, the Department of Energy intends to announce publicly one or more selections for negotiation of financial assistance award(s) over $1,000,000. This information is market sensitive, predecisional and not public at this time. Accordingly,

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

BUSINESS SENSITIVE  

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

Chairman, Subcommittee on Energy Chairman, Subcommittee on Energy and Water Development and Water Development Committee on Appropriations Committee on Appropriations U.S. House of Representatives U.S. Senate Washington, DC 20515 Washington, DC 20510 Subject: Section 311 Notification to Make a Non-competitive Financial Assistance Award Dear Chairmen Rogers, Inouye, Frelinghuysen and Feinstein: No earlier than three full business days from the date of this notification, the Department of Energy intends to award an action over $1,000,000 in accordance with Section 311 of P.L. 111-85. This information is market sensitive, predecisional and not public at this time. Accordingly, we request that you do not further disseminate this information. If you are considering

22

Safeguards over sensitive technology  

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

Safeguards Over Sensitive Technology Safeguards Over Sensitive Technology DOE/IG-0635 January 2004 Program Results and Cost Details of Finding ....................................................................... 1 Recommendations and Comments ........................................... 6 Appendices Prior Reports .............................................................................. 9 Objective, Scope, and Methodology ........................................ 11 Management Comments .......................................................... 12 SAFEGUARDS OVER SENSITIVE TECHNOLOGY TABLE OF CONTENTS Page 1 Background Aspects of sensitive technology protection, along with related impacts on national security, have been addressed in various formats by the Department of Energy and several other Federal agencies. For example:

23

Sensitivity and Uncertainty Analysis  

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

Summary Notes from 15 November 2007 Generic Technical Issue Discussion on Sensitivity and Uncertainty Analysis and Model Support

24

Improved Dye-Sensitized Solar Cell (DSSC) for Higher Energy ...  

solar cells to potentially compete with fossil fuels. Improved Dye-Sensitized Solar Cell (DSSC) for Higher Energy Conversion Efficiency Page 1 of 1 Data Update

25

Treatment of biomass to obtain ethanol  

DOE Patents (OSTI)

Ethanol was produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

Dunson, Jr., James B. (Newark, DE); Elander, Richard T. (Evergreen, CO); Tucker, III, Melvin P. (Lakewood, CO); Hennessey, Susan Marie (Avondale, PA)

2011-08-16T23:59:59.000Z

26

Atomic force microscope: Enhanced sensitivity  

SciTech Connect

Atomic force microscopes (AFMs) are a recent development representing the state of the art in measuring ultrafine surface features. Applications are found in such fields of research as biology, microfabrication, material studies, and surface chemistry. Fiber-optic interferometer techniques developed at LLNL offer the potential of improving the vertical resolution of these instruments by up to 2 orders of magnitude. We are attempting to replace the current AFM measurement scheme, which consists of an optical beam deflection approach, with our fiber-optic interferometer scheme, a much more sensitive displacement measurement technique. In performing this research, we hope to accomplish two important goals; (1) to enhance the sensitivity of the AFM, and (2) to achieve important improvements in our fiber-optic interferometer technology.

Davis, D.T.

1995-06-01T23:59:59.000Z

27

HOW TO OBTAIN EIA PRODUCTS AND SERVICES  

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

HOW TO OBTAIN EIA PRODUCTS AND SERVICES HOW TO OBTAIN EIA PRODUCTS AND SERVICES For further information on any or the following services, or for answers to energy information questions, please contact ElA's National Energy Information Outer National Energy Infomtaiion Center (NEIC) (202) 586-8800 Energy Information Administration (202) 586-0727 (fax) l-orrtslal Ituilding, Roam 1F-048 TTY: (202) 586-1ISI Washington. DC 20585 E-mail: infocir@eia.doc.gov Electronic Products and Services ElA's Internet Site Services offer nearly all E1A publications. Users can view and download selected pages or entire reports, search Tor information, download LIA tlaia and analysis applications, and find out about new KIA information products aitd sen-ices, World Wide Web: http://www.eia.doe.KOV Gopher: go ph« r ://go ph er .eia .d oe. gov

28

Tuned cavity magnetometer sensitivity.  

Science Conference Proceedings (OSTI)

We have developed a high sensitivity (Tesla/{radical}Hz), non-cryogenic magnetometer that utilizes a novel optical (interferometric) detection technique. Further miniaturization and low-power operation are key advantages of this magnetometer, when compared to systems using SQUIDs which require liquid Helium temperatures and associated overhead to achieve similar sensitivity levels.

Okandan, Murat; Schwindt, Peter

2009-09-01T23:59:59.000Z

29

Tuned cavity magnetometer sensitivity.  

SciTech Connect

We have developed a high sensitivity (sensitivity levels.

Okandan, Murat; Schwindt, Peter

2009-09-01T23:59:59.000Z

30

Touch: sensitive apparel  

Science Conference Proceedings (OSTI)

Touch•Sensitive is a haptic apparel that allows massage therapy to be diffused, customized and controlled by people while on the move. It provides individuals with a sensory cocoon. Made of modular garments, Touch•Sensitive applies personalized ... Keywords: apparel, fashion design, haptic, massage therapy, modular design, sensory interface, wearable

Cati Vaucelle; Yasmine Abbas

2007-04-01T23:59:59.000Z

31

Singlet-Fission Sensitizers for Ultra-High Efficiency Excitonic Solar Cells: 15 August 2005 - 14 October 2008  

DOE Green Energy (OSTI)

We have considered the potential benefits offered by using singlet fission sensitizers in photovoltaic cells and identified two key issues involved in the search for such sensitizers.

Michl, J.

2008-12-01T23:59:59.000Z

32

Commercialization potential of dye-sensitized mesoscopic solar cells  

E-Print Network (OSTI)

The price of oil has continued to rise, from a high of US$100 per barrel at the beginning 2008 to a new record of above US$140 in the recent weeks (of July). Coupled with increasing insidious greenhouse gas emissions, the ...

Tan, Kwan Wee

2008-01-01T23:59:59.000Z

33

Multiple predictor smoothing methods for sensitivity analysis.  

Science Conference Proceedings (OSTI)

The use of multiple predictor smoothing methods in sampling-based sensitivity analyses of complex models is investigated. Specifically, sensitivity analysis procedures based on smoothing methods employing the stepwise application of the following nonparametric regression techniques are described: (1) locally weighted regression (LOESS), (2) additive models, (3) projection pursuit regression, and (4) recursive partitioning regression. The indicated procedures are illustrated with both simple test problems and results from a performance assessment for a radioactive waste disposal facility (i.e., the Waste Isolation Pilot Plant). As shown by the example illustrations, the use of smoothing procedures based on nonparametric regression techniques can yield more informative sensitivity analysis results than can be obtained with more traditional sensitivity analysis procedures based on linear regression, rank regression or quadratic regression when nonlinear relationships between model inputs and model predictions are present.

Helton, Jon Craig; Storlie, Curtis B.

2006-08-01T23:59:59.000Z

34

CONTINUOUSLY SENSITIVE BUBBLE CHAMBER  

DOE Patents (OSTI)

A radiation detector of the bubble chamber class is described which is continuously sensitive and which does not require the complex pressure cycling equipment characteristic of prior forms of the chamber. The radiation sensitive element is a gas-saturated liquid and means are provided for establishing a thermal gradient across a region of the liquid. The gradient has a temperature range including both the saturation temperature of the liquid and more elevated temperatures. Thus a supersaturated zone is created in which ionizing radiations may give rise to visible gas bubbles indicative of the passage of the radiation through the liquid. Additional means are provided for replenishing the supply of gas-saturated liquid to maintaincontinuous sensitivity.

Good, R.H.

1959-08-18T23:59:59.000Z

35

Sensitivity analysis of SPURR  

DOE Green Energy (OSTI)

The Solar Energy Research Institute has conducted a limited sensitivity analysis on a System for Projecting the Utilization of Renewable Resources (SPURR). The study utilized the Domestic Policy Review scenario for SPURR agricultural and industrial process heat and utility market sectors. This sensitivity analysis determines whether variations in solar system capital cost, operation and maintenance cost, and fuel cost (biomass only) correlate with intuitive expectations. The results of this effort contribute to a much larger issue: validation of SPURR. Such a study has practical applications for engineering improvements in solar technologies and is useful as a planning tool in the R and D allocation process.

Witholder, R.E.

1980-04-01T23:59:59.000Z

36

NANOCOMPOSITE ENABLED SENSITIZED SOLAR CELL  

E-Print Network (OSTI)

by Dye-Sensitized Photovoltaic cells. Inorganic Chemistry,by Dye-Sensitized Photovoltaic Cells. Inorganic ChemistryThe characteristics of a photovoltaic cell. Generally,

Phuyal, Dibya

2012-01-01T23:59:59.000Z

37

Sensitive hydrogen leak detector  

DOE Patents (OSTI)

A sensitive hydrogen leak detector system using passivation of a stainless steel vacuum chamber for low hydrogen outgassing, a high compression ratio vacuum system, a getter operating at 77.5 K and a residual gas analyzer as a quantitative hydrogen sensor.

Myneni, Ganapati Rao (Yorktown, VA)

1999-01-01T23:59:59.000Z

38

Compensation between Model Feedbacks and Curtailment of Climate Sensitivity  

Science Conference Proceedings (OSTI)

The spread in climate sensitivity obtained from 12 general circulation model runs used in the Fourth Assessment of the Intergovernmental Panel on Climate Change indicates a 95% confidence interval of 2.1°–5.5°C, but this reflects compensation ...

Peter Huybers

2010-06-01T23:59:59.000Z

39

Evolution of Analysis Error and Adjoint-Based Sensitivities: Implications for Adaptive Observations  

Science Conference Proceedings (OSTI)

The structure and evolution of analysis error and adjoint-based sensitivities [potential enstrophy initial singular vectors (SVs) and gradient sensitivities of the forecast error to initial conditions] are compared following a cyclone development ...

Hyun Mee Kim; Michael C. Morgan; Rebecca E. Morss

2004-04-01T23:59:59.000Z

40

Surveillance Metrics Sensitivity Study  

Science Conference Proceedings (OSTI)

In September of 2009, a Tri-Lab team was formed to develop a set of metrics relating to the NNSA nuclear weapon surveillance program. The purpose of the metrics was to develop a more quantitative and/or qualitative metric(s) describing the results of realized or non-realized surveillance activities on our confidence in reporting reliability and assessing the stockpile. As a part of this effort, a statistical sub-team investigated various techniques and developed a complementary set of statistical metrics that could serve as a foundation for characterizing aspects of meeting the surveillance program objectives. The metrics are a combination of tolerance limit calculations and power calculations, intending to answer level-of-confidence type questions with respect to the ability to detect certain undesirable behaviors (catastrophic defects, margin insufficiency defects, and deviations from a model). Note that the metrics are not intended to gauge product performance but instead the adequacy of surveillance. This report gives a short description of four metrics types that were explored and the results of a sensitivity study conducted to investigate their behavior for various inputs. The results of the sensitivity study can be used to set the risk parameters that specify the level of stockpile problem that the surveillance program should be addressing.

Bierbaum, R; Hamada, M; Robertson, A

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Surveillance metrics sensitivity study.  

SciTech Connect

In September of 2009, a Tri-Lab team was formed to develop a set of metrics relating to the NNSA nuclear weapon surveillance program. The purpose of the metrics was to develop a more quantitative and/or qualitative metric(s) describing the results of realized or non-realized surveillance activities on our confidence in reporting reliability and assessing the stockpile. As a part of this effort, a statistical sub-team investigated various techniques and developed a complementary set of statistical metrics that could serve as a foundation for characterizing aspects of meeting the surveillance program objectives. The metrics are a combination of tolerance limit calculations and power calculations, intending to answer level-of-confidence type questions with respect to the ability to detect certain undesirable behaviors (catastrophic defects, margin insufficiency defects, and deviations from a model). Note that the metrics are not intended to gauge product performance but instead the adequacy of surveillance. This report gives a short description of four metrics types that were explored and the results of a sensitivity study conducted to investigate their behavior for various inputs. The results of the sensitivity study can be used to set the risk parameters that specify the level of stockpile problem that the surveillance program should be addressing.

Hamada, Michael S. (Los Alamos National Laboratory); Bierbaum, Rene Lynn; Robertson, Alix A. (Lawrence Livermore Laboratory)

2011-09-01T23:59:59.000Z

42

An Improved Non-Conventional Method for Obtaining Nuclear Pure ...  

Science Conference Proceedings (OSTI)

Aug 1, 2000 ... Uranium oxide (U3O8) is obtained from this precipitate by calcination for ... The latter is reduced by stannous chloride to obtain uranium trioxide ...

43

Tracers and Potential Vorticities in Ocean Dynamics  

Science Conference Proceedings (OSTI)

The Ertel potential vorticity theorem for stratified viscous fluids in a rotating system is analyzed herein. A set of “tracers,” that is, materially conserved scalar quantities, and the corresponding Ertel potential vorticities are used to obtain ...

Michael V. Kurgansky; Giorgio Budillon; Ettore Salusti

2002-12-01T23:59:59.000Z

44

Conditionally Exactly Solvable Potentials and Supersymmetric Transformations  

E-Print Network (OSTI)

A general procedure is presented to construct conditionally solvable (CES) potentials using the techniques of supersymmetric quantum mechanics.The method is illustrated with potentials related to the harmonic oscillator problem.Besides recovering known results,new CES potentials are also obtained within the framework of this general approach.The conditions under which this method leads to CES potentials are also discussed.

Geza Levai; Pinaki Roy

1999-09-01T23:59:59.000Z

45

Distributed Energy Resources at Naval Base Ventura County Building 1512: A Sensitivity Analysis  

E-Print Network (OSTI)

s sensitivity to electricity tariff rates was obtained byLoad Profiles Electricity Tariff direct access: currenthigh, changing electricity costs and tariff structure are of

Bailey, Owen C.; Marnay, Chris

2005-01-01T23:59:59.000Z

46

Distributed Energy Resources at Naval Base Ventura County Building 1512: A Sensitivity Analysis  

E-Print Network (OSTI)

s sensitivity to electricity tariff rates was obtained byinfluence of electricity and natural gas tariff rates andTherefore, electricity and natural gas tariff rates and

Bailey, Owen C.; Marnay, Chris

2005-01-01T23:59:59.000Z

47

Converting sensitive waste into cleaner energy  

DOE Green Energy (OSTI)

The destruction of sensitive unclassified information (SUI) has always been expensive due to the need for special controls to ensure its protection from disclosure to unauthorized persons. The sensitive documents were shredded, buried at the landfill, or sent to a recycling company. The Department of Energy (DOE) Idaho National Engineering and Environmental Laboratory (INEEL), operated by Lockheed Martin Idaho Technologies Company (LMITCO), has created an innovative method to dispose of its sensitive unclassified paper waste which has security, economic, and environmental benefits. A new cubing facility at the INEEL converts office and industrial waste into compact cubes which are then combined with coal and burned as a source of heat and process steam to run the Idaho Chemical Processing Plant (ICPP) facility. The process-engineered fuel, consisting of 25% cubes and 75% coal, bums cleaner than coal with lower emissions of sulfur dioxide and nitrogen oxides. The alternative fuel also reduces fuel costs, eliminates paying a recycling company, reduces the expense of landfill disposal, increases the life of the landfill, and provides energy to operate a large facility. The Operations Security (OPSEC) team capitalized on this waste to energy technology by recommending that the large quantities of sensitive information (documents) generated at the INEEL be disposed of in this manner. In addition to the economic and environmental benefits, this disposal method minimizes the vulnerabilities of SUI from disclosure to unauthorized personnel. The {open_quotes}cuber{close_quotes} technology has potential application in government and industry for protection of SUI.

Schriner, D.; Skinner, R.

1997-10-01T23:59:59.000Z

48

Context-sensitive dependency pairs  

Science Conference Proceedings (OSTI)

Termination is one of the most interesting problems when dealing with context-sensitive rewrite systems. Although a good number of techniques for proving termination of context-sensitive rewriting (CSR) have been proposed so far, the adaptation to CSR ... Keywords: Dependency pairs, Program analysis, Term rewriting, Termination

Beatriz Alarcón; Raúl Gutiérrez; Salvador Lucas

2010-08-01T23:59:59.000Z

49

Context-sensitive dependency pairs  

Science Conference Proceedings (OSTI)

Termination is one of the most interesting problems when dealing with context-sensitive rewrite systems. Although there is a good number of techniques for proving termination of context-sensitive rewriting (CSR), the dependency pair approach, one of ... Keywords: dependency pairs, program analysis, term rewriting, termination

Beatriz Alarcón; Raúl Gutiérrez; Salvador Lucas

2006-12-01T23:59:59.000Z

50

Respiratory sensitization and allergy: Current research approaches and needs  

SciTech Connect

There are currently no accepted regulatory models for assessing the potential of a substance to cause respiratory sensitization and allergy. In contrast, a number of models exist for the assessment of contact sensitization and allergic contact dermatitis (ACD). Research indicates that respiratory sensitizers may be identified through contact sensitization assays such as the local lymph node assay, although only a small subset of the compounds that yield positive results in these assays are actually respiratory sensitizers. Due to the increasing health concerns associated with occupational asthma and the impending directives on the regulation of respiratory sensitizers and allergens, an approach which can identify these compounds and distinguish them from contact sensitizers is required. This report discusses some of the important contrasts between respiratory allergy and ACD, and highlights several prominent in vivo, in vitro and in silico approaches that are being applied or could be further developed to identify compounds capable of causing respiratory allergy. Although a number of animal models have been used for researching respiratory sensitization and allergy, protocols and endpoints for these approaches are often inconsistent, costly and difficult to reproduce, thereby limiting meaningful comparisons of data between laboratories and development of a consensus approach. A number of emerging in vitro and in silico models show promise for use in the characterization of contact sensitization potential and should be further explored for their ability to identify and differentiate contact and respiratory sensitizers. Ultimately, the development of a consistent, accurate and cost-effective model will likely incorporate a number of these approaches and will require effective communication, collaboration and consensus among all stakeholders.

Boverhof, Darrell R. [Toxicology and Environmental Research and Consulting, Dow Chemical Company, 1803 Building, Midland MI 48674 (United States)], E-mail: RBoverhof@dow.com; Billington, Richard [Human Health Assessment, Dow AgroSciences Limited, Abingdon (United Kingdom); Gollapudi, B. Bhaskar; Hotchkiss, John A.; Krieger, Shannon M. [Toxicology and Environmental Research and Consulting, Dow Chemical Company, 1803 Building, Midland MI 48674 (United States); Poole, Alan [Dow Europe GmbH. Horgen (Switzerland); Wiescinski, Connie M.; Woolhiser, Michael R. [Toxicology and Environmental Research and Consulting, Dow Chemical Company, 1803 Building, Midland MI 48674 (United States)

2008-01-01T23:59:59.000Z

51

Internal Controls Over Sensitive Compartmented Information Access...  

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

Controls Over Sensitive Compartmented Information Access for Selected Field Intelligence Elements, IG-0796 Internal Controls Over Sensitive Compartmented Information Access...

52

Dynamical Potential Energy: A New Approach to Ocean Energetics  

Science Conference Proceedings (OSTI)

The concept of available potential energy is supposed to indicate which part of the potential energy is available to transform into kinetic energy. Yet it is impossible to obtain a unique definition of available potential energy for the real ocean ...

Fabien Roquet

2013-02-01T23:59:59.000Z

53

Monitoring natural subsidence and seismicity in the Imperial Valley as a basis for evaluating potential impacts of geothermal production  

DOE Green Energy (OSTI)

Results of work done on potential geologic effects of geothermal development are discussed. The key geological issues in the Imperial Valley are the potential for significant subsidence and seismicity which could be induced by geothermal production. The major technical problem is to develop techniques to distinguish between natural and induced activity. In both subsidence and seismicity studies, the projects augment the existing network to obtain additional information in critical areas; thus, local subsidence detection networks were added to the regional networks. The U.S. Geological Survey seismograph network was augmented to increase sensitivity to small earthquakes near the Salton Sea. Techniques being used and initial results are summarized briefly. (JGB)

Crow, N.B.; Kasamayer, P.W.

1978-04-04T23:59:59.000Z

54

Mass-sensitive chemical preconcentrator  

DOE Patents (OSTI)

A microfabricated mass-sensitive chemical preconcentrator actively measures the mass of a sample on an acoustic microbalance during the collection process. The microbalance comprises a chemically sensitive interface for collecting the sample thereon and an acoustic-based physical transducer that provides an electrical output that is proportional to the mass of the collected sample. The acoustic microbalance preferably comprises a pivot plate resonator. A resistive heating element can be disposed on the chemically sensitive interface to rapidly heat and release the collected sample for further analysis. Therefore, the mass-sensitive chemical preconcentrator can optimize the sample collection time prior to release to enable the rapid and accurate analysis of analytes by a microanalytical system.

Manginell, Ronald P. (Albuquerque, NM); Adkins, Douglas R. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM)

2007-01-30T23:59:59.000Z

55

Ensemble-Based Sensitivity Analysis  

Science Conference Proceedings (OSTI)

The sensitivity of forecasts to observations is evaluated using an ensemble approach with data drawn from a pseudo-operational ensemble Kalman filter. For Gaussian statistics and a forecast metric defined as a scalar function of the forecast ...

Ryan D. Torn; Gregory J. Hakim

2008-02-01T23:59:59.000Z

56

Cost-sensitive classifier evaluation  

Science Conference Proceedings (OSTI)

Evaluating classifier performance in a cost-sensitive setting is straightforward if the operating conditions (misclassification costs and class distributions) are fixed and known. When this is not the case, evaluation requires a method of visualizing ...

Robert C. Holte; Chris Drummond

2005-08-01T23:59:59.000Z

57

Bayesian calibration Uncertainty Sensitivity analysis  

E-Print Network (OSTI)

available at www.sciencedirect.com journal homepage: www.elsevier.com/locate/ecolmodel Sensitivity and uncertainty analysis from a coupled 3-PG and soil organic matter decomposition model

Monte Carlo; Markov Chain

2008-01-01T23:59:59.000Z

58

Cloud Cover and Climate Sensitivity  

Science Conference Proceedings (OSTI)

This study discusses how the sensitivity of climate may be affected by the variation of cloud cover based on the results from numerical experiments with a highly simplified, three-dimensional model of the atmospheric general circulation. The ...

Richard T. Wetherald; Syukuro Manabe

1980-07-01T23:59:59.000Z

59

Wood-Polymer composites obtained by gamma irradiation  

Science Conference Proceedings (OSTI)

In this work we impregnate three Peruvian woods (Calycophy spruceanum Be, Aniba amazonica Meiz and Hura crepitans L) with styrene-polyester resin and methyl methacrylate. The polymerization of the system was promoted by gamma radiation and the experimental optimal condition was obtained with styrene-polyester 1:1 and 15 kGy. The obtained composites show reduced water absorption and better mechanical properties compared to the original wood. The structure of the wood-polymer composites was studied by light microscopy. Water absorption and hardness were also obtained.

Gago, J. [Instituto Peruano de Energia Nuclear, Av. Canada 1470 Lima 41 (Peru); Lopez, A.; Rodriguez, J. [Instituto Peruano de Energia Nuclear, Av. Canada 1470 Lima 41 (Peru); Facultad de Ciencias, Universidad Nacional de Ingenieria, Av. Tupac Amaru 210, Lima 25 (Peru); Santiago, J. [Instituto Peruano de Energia Nuclear, Av. Canada 1470 Lima 41 (Peru); Facultad de Quimica e Ing. Quimica, Universidad Nacional Mayor de San Marcos, Lima 1 (Peru); Acevedo, M. [Facultad de Ciencias Forestales, Universidad Nacional Agraria la Molina, Lima 12 (Peru)

2007-10-26T23:59:59.000Z

60

T-652: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies...  

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

that, when loaded by the target user, will access deleted memory (while JavaScript is disabled) and potentially execute arbitrary code on the target system CVE-2011-2373. A...

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Treatment of biomass to obtain a target chemical  

DOE Patents (OSTI)

Target chemicals were produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

Dunson, Jr., James B. (Newark, DE); Tucker, III, Melvin P. (Lakewood, CO); Elander, Richard T. (Evergreen, CO); Hennessey, Susan Marie (Avondale, PA)

2010-08-24T23:59:59.000Z

62

Obtaining and Using USDA Market and Production Reports  

E-Print Network (OSTI)

Producers who have superior information hold a distinct marketing advantage over those who do not. This publication lists various sources of marketing and production information and where to obtain them.

Bevers, Stan; Amosson, Stephen H.; Smith, Jackie; O'Brien, Daniel

2008-10-07T23:59:59.000Z

63

An Observationally Based Estimate of the Climate Sensitivity  

Science Conference Proceedings (OSTI)

A probability distribution for values of the effective climate sensitivity, with a lower bound of 1.6 K (5th percentile), is obtained on the basis of the increase in ocean heat content in recent decades from analyses of observed interior-ocean ...

J. M. Gregory; R. J. Stouffer; S. C. B. Raper; P. A. Stott; N. A. Rayner

2002-11-01T23:59:59.000Z

64

Phase-sensitive flow cytometer  

DOE Patents (OSTI)

This report describes phase-sensitive flow cytometer (FCM) which provides additional FCM capability to use the fluorescence lifetime of one or more fluorochromes bound to single cells to provide additional information regarding the cells. The resulting fluorescence emission can be resolved into individual fluorescence signals if two fluorochromes are present or can be converted directly to a decay lifetime from a single fluorochrome. The excitation light for the fluorochromes is modulated to produce an amplitude modulated fluorescence pulse as the fluorochrome is excited in the FCM. The modulation signal also forms a reference signal that is phase-shifted a selected amount for subsequent mixing with the output modulated fluorescence intensity signal in phase-sensitive detection circuitry. The output from the phase-sensitive circuitry is then an individual resolved fluorochrome signal or a single fluorochrome decay lifetime, depending on the applied phase shifts.

Steinkamp, J.A.

1992-12-31T23:59:59.000Z

65

Phase-sensitive flow cytometer  

DOE Patents (OSTI)

A phase-sensitive flow cytometer (FCM) provides additional FCM capability to use the fluorescence lifetime of one or more fluorochromes bound to single cells to provide additional information regarding the cells. The resulting fluorescence emission can be resolved into individual fluorescence signals if two fluorochromes are present or can be converted directly to a decay lifetime from a single fluorochrome. The excitation light for the fluorochromes is modulated to produce an amplitude modulated fluorescence pulse as the fluorochrome is excited in the FCM. The modulation signal also forms a reference signal that is phase-shifted a selected amount for subsequent mixing with the output modulated fluorescence intensity signal in phase-sensitive detection circuitry. The output from the phase-sensitive circuitry is then an individual resolved fluorochrome signal or a single fluorochrome decay lifetime, depending on the applied phase shifts. 15 figures.

Steinkamp, J.A.

1993-12-14T23:59:59.000Z

66

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Obtains Patent for Nuclear Reactor Sodium Cleanup Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

67

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

68

Obtaining the Bidirectional Transfer Distribution Function of Isotropically  

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

Obtaining the Bidirectional Transfer Distribution Function of Isotropically Obtaining the Bidirectional Transfer Distribution Function of Isotropically Scattering Materials Using an Integrating Sphere Title Obtaining the Bidirectional Transfer Distribution Function of Isotropically Scattering Materials Using an Integrating Sphere Publication Type Journal Article LBNL Report Number LBNL-61826 Year of Publication 2007 Authors Jonsson, Jacob C., and Henrik Branden Journal Optics Communications Volume 277 Pagination 228-236 Call Number LBNL-61826 Abstract This paper demonstrates a method to determine the bidirectional transfer distribution function (BTDF) using an integrating sphere. Information about the sample's angle dependent scattering is obtained by making transmittance measurements with the sample at different distances from the integrating sphere. Knowledge about the illuminated area of the sample and the geometry of the sphere port in combination with the measured data combines to an system of equations that includes the angle dependent transmittance. The resulting system of equations is an ill-posed problem which rarely gives a physical solution. A solvable system is obtained by using Tikhonov regularization on the ill-posed problem. The solution to this system can then be used to obtain the BTDF. Four bulk-scattering samples were characterised using both two goniophotometers and the described method to verify the validity of the new method. The agreement shown is great for the more diffuse samples. The solution to the low-scattering samples contains unphysical oscillations, but still gives the correct shape of the solution. The origin of the oscillations and why they are more prominent in low-scattering samples are discussed.

69

Neutrino mass sensitivity by MAC-E-Filter based time-of-flight spectroscopy with the example of KATRIN  

E-Print Network (OSTI)

The KATRIN experiment aims at a measurement of the neutrino mass with a 90 % C.L. sensitivity of 0.2 eV/c$^2$ by measuring the endpoint region of the tritium $\\beta$ decay spectrum from a windowless gaseous molecular tritium source using an integrating spectrometer of the MAC-E-Filter type. We discuss the idea of using the MAC-E-Filter in a time-of-flight mode (MAC-E-TOF) in which the neutrino mass is determined by a measurement of the electron time-of-flight (TOF) spectrum that depends on the neutrino mass. MAC-E-TOF spectroscopy here is a very sensitive method since the $\\beta$-electrons are slowed down to distinguishable velocities by the MAC-E-Filter. Their velocity depends strongly on their surplus energy above the electric retarding potential. Using MAC-E-TOF, a statistical sensitivity gain is expected. Because a small number of retarding-potential settings is sufficient for a complete measurement, in contrast to about 40 different retarding potentials used in the standard MAC-E-Filter mode, there is a gain in measurement time and hence statistical power. The improvement of the statistical uncertainty of the squared neutrino mass has been determined by Monte Carlo simulation to be a factor 5 for an ideal case neglecting background and timing uncertainty. Additionally, two scenarios to determine the time-of-flight of the $\\beta$-electrons are discussed, which use the KATRIN detector for creating the stop signal and different methods for obtaining a start signal. These comprise the hypothetical case of an `electron tagger' which detects passing electrons with minimal interference and the more realistic case of `gated filtering', where the electron flux is periodically cut off by pulsing the pre-spectrometer potential.

Nicholas Steinbrink; Volker Hannen; Eric L. Martin; R. G. Hamish Robertson; Michael Zacher; Christian Weinheimer

2013-08-02T23:59:59.000Z

70

Neutrino mass sensitivity by MAC-E-Filter based time-of-flight spectroscopy with the example of KATRIN  

E-Print Network (OSTI)

The KArlsruhe TRItium Neutrino (KATRIN) experiment aims at a measurement of the neutrino mass with a 90 % confidence limit (C.L.) sensitivity of 0.2 eV/c$^2$ by measuring the endpoint region of the tritium $\\beta$ decay spectrum from a windowless gaseous molecular tritium source using an integrating spectrometer of the MAC-E-Filter type. We discuss the idea of using the MAC-E-Filter in a time-of-flight mode (MAC-E-TOF) in which the neutrino mass is determined by a measurement of the electron time-of-flight (TOF) spectrum that depends on the neutrino mass. MAC-E-TOF spectroscopy here is a very sensitive method since the $\\beta$-electrons are slowed down to distinguishable velocities by the MAC-E-Filter. Their velocity depends strongly on their surplus energy above the electric retarding potential. Using MAC-E-TOF, a statistical sensitivity gain is expected. Because a small number of retarding-potential settings is sufficient for a complete measurement, in contrast to about 40 different retarding potentials used in the standard MAC-E-Filter mode, there is a gain in measurement time and hence statistical power. The improvement of the statistical uncertainty of the squared neutrino mass has been determined by Monte Carlo simulation to be a factor 5 for an ideal case neglecting background and timing uncertainty. Additionally, two scenarios to determine the time-of-flight of the $\\beta$-electrons are discussed, which use the KATRIN detector for creating the stop signal and different methods for obtaining a start signal. These comprise the hypothetical case of an `electron tagger' which detects passing electrons with minimal interference and the more realistic case of `gated filtering', where the electron flux is periodically cut off by pulsing the pre-spectrometer potential.

Nicholas Steinbrink; Volker Hannen; Eric L. Martin; R. G. Hamish Robertson; Michael Zacher; Christian Weinheimer

2013-08-02T23:59:59.000Z

71

METHOD FOR OBTAINING PLUTONIUM METAL FROM ITS TRICHLORIDE  

DOE Patents (OSTI)

A method was developed for obtaining plutonium metal by direct reduction of plutonium chloride, without the use of a booster, using calcium and lanthamum as a reductant, the said reduction being carried out at temperature in the range of 700 to 850 deg C and at about atmospheric pressure. (AEC)

Reavis, J.G.; Leary, J.A.; Maraman, W.J.

1962-08-14T23:59:59.000Z

72

Obtaining a bimodal grain size distribution via thermal means  

Science Conference Proceedings (OSTI)

Presentation Title, Obtaining a bimodal grain size distribution via thermal means ... manipulating thermal history, a family of bimodal grain size distributions may be formed. ... Mild Carbon Steel Quenche in Coconut Water, Fresh urine, Nigerian unadultrated up-wine, ... Multi-scale modeling of phase transformations in steels.

73

Skin Sensitivity and the Cold  

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

Skin Sensitivity and the Cold Skin Sensitivity and the Cold Name: Richard Location: N/A Country: N/A Date: N/A Question: A student in my anatomy and physiology class asked me, "When it's very cold outside in the winter, why does your skin hurt MORE than usual when you bang your finger or someone slaps you on the arm?" Replies: Wow! This is one outstanding question. Mammals respond to cold weather with the hypothalamus releasing thyrotropin releasing factor. This production increases with the severity of the cold weather and the length of the exposure to cold over a long period of time (at least three to four weeks). The thyroid responds by slowly increasing in size and releases thyroxine at higher quantities. Thyroxine increases the sensitivity of the entire nervous system. As a matter of fact, as you probably know, it increases the metabolism wholesale! within the body. This gets complicated so I'm keeping it simple. So, the bottom line is thyroxine. It just heightens our sensitivity not only to cold but our entire nervous system is enhanced.

74

Hydrodesulfurization and hydrodenitrogenation catalysts obtained from coal mineral matter  

SciTech Connect

A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25-3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.

Liu, Kindtoken H. D. (Newark, DE); Hamrin, Jr., Charles E. (Lexington, KY)

1982-01-01T23:59:59.000Z

75

Scale/TSUNAMI Sensitivity Data for ICSBEP Evaluations  

Science Conference Proceedings (OSTI)

The Tools for Sensitivity and Uncertainty Analysis Methodology Implementation (TSUNAMI) software developed at Oak Ridge National Laboratory (ORNL) as part of the Scale code system provide unique methods for code validation, gap analysis, and experiment design. For TSUNAMI analysis, sensitivity data are generated for each application and each existing or proposed experiment used in the assessment. The validation of diverse sets of applications requires potentially thousands of data files to be maintained and organized by the user, and a growing number of these files are available through the International Handbook of Evaluated Criticality Safety Benchmark Experiments (IHECSBE) distributed through the International Criticality Safety Benchmark Evaluation Program (ICSBEP). To facilitate the use of the IHECSBE benchmarks in rigorous TSUNAMI validation and gap analysis techniques, ORNL generated SCALE/TSUNAMI sensitivity data files (SDFs) for several hundred benchmarks for distribution with the IHECSBE. For the 2010 edition of IHECSBE, the sensitivity data were generated using 238-group cross-section data based on ENDF/B-VII.0 for 494 benchmark experiments. Additionally, ORNL has developed a quality assurance procedure to guide the generation of Scale inputs and sensitivity data, as well as a graphical user interface to facilitate the use of sensitivity data in identifying experiments and applying them in validation studies.

Rearden, Bradley T [ORNL; Reed, Davis Allan [ORNL; Lefebvre, Robert A [ORNL; Mueller, Don [ORNL; Marshall, William BJ J [ORNL

2011-01-01T23:59:59.000Z

76

QCD Phase Diagram with Imaginary Chemical Potential  

E-Print Network (OSTI)

We report our recent results on the QCD phase diagram obtained from the lattice QCD simulation. The location of the phase boundary between hadronic and QGP phases in the two-flavor QCD phase diagram is investigated. The imaginary chemical potential approach is employed, which is based on Monte Carlo simulations of the QCD with imaginary chemical potential and analytic continuation to the real chemical potential region.

Nagata, Keitaro

2011-01-01T23:59:59.000Z

77

Dye-sensitized solar cells  

DOE Patents (OSTI)

A low-cost dye-sensitized Schottky barrier solar cell is comprised of a substrate of semiconductor with an ohmic contact on one face, a sensitizing dye adsorbed onto the opposite face of the semiconductor, a transparent thin-film layer of a reducing agent over the dye, and a thin-film layer of metal over the reducing agent. The ohmic contact and metal layer constitute electrodes for connection to an external circuit and one or the other or both are made transparent to permit light to penetrate to the dye and be absorbed therein for generating electric current. The semiconductor material chosen to be the substrate is one having a wide bandgap and which therefore is transparent; the dye selected is one having a ground state within the bandgap of the semiconductor to generate carriers in the semiconductor, and a first excited state above the conduction band edge of the semiconductor to readily conduct electrons from the dye to the semiconductor; the reducing agent selected is one having a ground state above the ground state of the sensitizer to provide a plentiful source of electrons to the dye during current generation and thereby enhance the generation; and the metal for the thin-film layer of metal is selected to have a Fermi level in the vicinity of or above the ground state of the reducing agent to thereby amply supply electrons to the reducing agent. 3 figs.

Skotheim, T.A.

1980-03-04T23:59:59.000Z

78

Dye-sensitized solar cells  

DOE Patents (OSTI)

A low-cost dye-sensitized Schottky barrier solar cell comprised of a substrate of semiconductor with an ohmic contact on one face, a sensitizing dye adsorbed onto the opposite face of the semiconductor, a transparent thin-film layer of a reducing agent over the dye, and a thin-film layer of metal over the reducing agent. The ohmic contact and metal layer constitute electrodes for connection to an external circuit and one or the other or both are made transparent to permit light to penetrate to the dye and be absorbed therein for generating electric current. The semiconductor material chosen to be the substrate is one having a wide bandgap and which therefore is transparent; the dye selected is one having a ground state within the bandgap of the semiconductor to generate carriers in the semiconductor, and a first excited state above the conduction band edge of the semiconductor to readily conduct electrons from the dye to the semiconductor; the reducing agent selected is one having a ground state above the ground state of the sensitizer to provide a plentiful source of electrons to the dye during current generation and thereby enhance the generation; and the metal for the thin-film layer of metal is selected to have a Fermi level in the vicinity of or above the ground state of the reducing agent to thereby amply supply electrons to the reducing agent.

Skotheim, Terje A. (Berkeley, CA)

1980-01-01T23:59:59.000Z

79

A landscape level analysis of potential excess nitrogen in east-central North Carolina, USA  

SciTech Connect

The objective of this research was to arrive at an assessment of potential excess nitrogen (N) under different land cover categories in the Neuse River Basin (North Carolina, USA) on a seasonal basis. Data on five processes (atmospheric N deposition, fertilization, net soil N mineralization, plant uptake, and denitrification) that contribute to potential excess N under different land cover categories were obtained from a literature review. Factors were also estimated to apportion annual N fluxes among different seasons of the year. Potential excess N was calculated as the difference between inputs to and outputs from an inorganic N pool. If inputs exceeded outputs, then the difference was assumed to represent N at risk of loss from the landscape to surface receiving waters and groundwaters. Land covers that were classified as potential N sources were influenced by soil N inventories and rates of net soil N mineralization (which is a natural process). The results indicated that there are large land areas in the Neuse River Basin that could be classified as either a N source or a N sink. Such areas are potentially sensitive because future changes in land use, or small alterations in N fluxes, could convert areas that are essentially in balance with respect to N biogeochemistry into the N source or N sink category. In this respect, model predictions indicate that the timing of N inputs and outputs on the landscape can be a critical determinant of potential excess N.

Garten Jr, Charles T [ORNL; Ashwood, Tom L [ORNL

2003-06-01T23:59:59.000Z

80

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained  

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

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained During the Spectral Radiance Experiment Y. Han, J. B. Snider, and E. R. Westwater National Oceanic and Atmospheric Administration Environmental Research Laboratories/Environmental Technology Laboratory Boulder, Colorado S. H. Melfi National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland R. A. Ferrare Hughes STX Corporation Lanham, Maryland Introduction In radiometric remote sensing of the atmosphere, the ability to calculate radiances from underlying state variables is fundamental. To infer temperature and water vapor profiles from satellite- or ground-based radiometers, one must determine cloud-free regions and then calculate clear-sky radiance emerging from the top of the earth's

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Solar energy conversion at dye sensitized nanostructured electrodes fabricated by sol-gel processing: Final report  

DOE Green Energy (OSTI)

The significant achievements accomplished in this program include: (1) the first demonstration of osmium polypyridyl compounds as sensitizers; (2) the first demonstration of donor-acceptor compounds as sensitizers; (3) the first utilization of alternative acac based sensitizer-semiconductor linkages; (4) the first demonstration of remote interfacial electron transfer; (5) the first application of bimetallic compounds as sensitizers; (6) the first correlation of the interfacial charge recombination rate constant with the open circuit photovoltage in sensitized materials; (7) the first demonstration of a solid state dye sensitized TiO{sub 2} cell; (8) an alternative band edge unpinning model for the nanocrystalline TiO{sub 2}/electrolyte interface at negative applied potentials; and (9) the first self-consistent model of electron transport in dye sensitized TiO{sub 2} films. In the following sections the authors summarize some of the results from this program and highlight the key findings.

Searson, P.C.; Meyer, G.J.

1998-07-01T23:59:59.000Z

82

Cumulus Microphysics and Climate Sensitivity  

Science Conference Proceedings (OSTI)

Precipitation processes in convective storms are potentially a major regulator of cloud feedback. An unresolved issue is how the partitioning of convective condensate between precipitation-size particles that fall out of updrafts and smaller ...

Anthony D. Del Genio; William Kovari; Mao-Sung Yao; Jeffrey Jonas

2005-07-01T23:59:59.000Z

83

Fabrication and Characterization of Dye-Sensitized Solar Cell Using Blackberry Dye and Titanium Dioxide Nanocrystals  

Science Conference Proceedings (OSTI)

In this work, a prototype of dye-sensitized solar cell using organic dye from blackberry and semiconductor TiO2 nanocrystals was studied. The cell was fabricated using materials locally obtained in Indonesia (except the transparent conducting oxide glass), ... Keywords: dye-sensitized solar cell, blackberry dye, TiO2 nanocrystal

Stephen lourens Tanihaha; Henri P. Uranus; Jessie Darma

2010-12-01T23:59:59.000Z

84

Turbulence Patch Identification in Potential Density or Temperature Profiles  

Science Conference Proceedings (OSTI)

The Thorpe analysis is a recognized method used to identify and characterize turbulent regions within stably stratified fluids. By comparing an observed profile of potential temperature or potential density to a reference profile obtained by ...

Richard Wilson; Hubert Luce; Francis Dalaudier; Jacques Lefrère

2010-06-01T23:59:59.000Z

85

Hybrid nuclear reactor grey rod to obtain required reactivity worth  

DOE Patents (OSTI)

Hybrid nuclear reactor grey rods are described, wherein geometric combinations of relatively weak neutron absorber materials such as stainless steel, zirconium or INCONEL, and relatively strong neutron absorber materials, such as hafnium, silver-indium cadmium and boron carbide, are used to obtain the reactivity worths required to reach zero boron change load follow. One embodiment includes a grey rod which has combinations of weak and strong neutron absorber pellets in a stainless steel cladding. The respective pellets can be of differing heights. A second embodiment includes a grey rod with a relatively thick stainless steel cladding receiving relatively strong neutron absorber pellets only. A third embodiment includes annular relatively weak netron absorber pellets with a smaller diameter pellet of relatively strong absorber material contained within the aperture of each relatively weak absorber pellet. The fourth embodiment includes pellets made of a homogeneous alloy of hafnium and a relatively weak absorber material, with the percentage of hafnium chosen to obtain the desired reactivity worth.

Miller, John V. (Munhall, PA); Carlson, William R. (Scott Township, Allegheny County, PA); Yarbrough, Michael B. (Hempfield Township, Westmoreland County, PA)

1991-01-01T23:59:59.000Z

86

Microturbine Economic Competitiveness: A Study of Two Potential Adopters  

E-Print Network (OSTI)

Load Profiles.Potential Adopters Appendix A. End-use Load Profiles End-use load profiles for the two sites were obtained through

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

87

Sensitivity of Multi-gas Climate Policy to Emission Metrics  

Science Conference Proceedings (OSTI)

Multi-gas greenhouse emission targets require that different emissions be combined into an aggregate total. The Global Warming Potential (GWP) index is currently used for this purpose, despite various criticisms of the underlying concept. It is not possible to uniquely define a single metric that perfectly captures the different impacts of emissions of substances with widely disparate atmospheric lifetimes, which leads to a wide range of possible index values. We examine the sensitivity of emissions and climate outcomes to the value of the index used to aggregate methane emissions using a technologically detailed integrated assessment model. We find that the sensitivity to index value is of order 4-14% in terms of methane emissions and 2% in terms of total radiative forcing, using index values between 4 and 70 for methane, with larger regional differences in some cases. The sensitivity to index value is much higher in economic terms, with total 2-gas mitigation cost decreasing 4-5% for a lower index and increasing 10-13% for a larger index, with even larger changes if the emissions reduction targets are small. The sensitivity to index value also depends on the assumed maximum amount of mitigation available in each sector. Evaluation of the maximum mitigation potential for major sources of non-CO2 greenhouse gases would greatly aid analysis

Smith, Steven J.; Karas, Joseph F.; Edmonds, James A.; Eom, Jiyong; Mizrahi, Andrew H.

2013-04-01T23:59:59.000Z

88

Piecewise Potential Vorticity Inversion  

Science Conference Proceedings (OSTI)

The treatment of the potential vorticity (PV) distribution as a composite of individual perturbations is central to the diagnostic and conceptual utility of PV. Nonlinearity in the inversion operator for Ertel's potential vorticity renders ...

Christopher A. Davis

1992-08-01T23:59:59.000Z

89

U-024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain  

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

024: IBM Lotus Sametime Configuration Servlet Lets Remote Users 024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data U-024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data November 1, 2011 - 8:15am Addthis PROBLEM: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data. PLATFORM: All Sametime Platforms : 7.0, 7.5, 7.5.1, 7.5.1.1, 7.5.1.2, 8.0, 8.0.1, 8.0.2, 8.5, 8.5.1, 8.5.1.1, 8.5.2 ABSTRACT: A remote user can obtain configuration information. reference lINKS: IBM Sametime Security Bulletin SecurityTracker Alert ID: 1026255 CVE-2011-1370 IMPACT ASSESSMENT: Medium Discussion: The Sametime server contains a configuration servlet that is accessed by several Sametime server processes. By default, this servlet does not require authentication, which could potentially allow an unauthorized user

90

Arctic Sea ice model sensitivities.  

SciTech Connect

Arctic sea ice is an important component of the global climate system and, due to feedback effects, the Arctic ice cover is changing rapidly. Predictive mathematical models are of paramount importance for accurate estimates of the future ice trajectory. However, the sea ice components of Global Climate Models (GCMs) vary significantly in their prediction of the future state of Arctic sea ice and have generally underestimated the rate of decline in minimum sea ice extent seen over the past thirty years. One of the contributing factors to this variability is the sensitivity of the sea ice state to internal model parameters. A new sea ice model that holds some promise for improving sea ice predictions incorporates an anisotropic elastic-decohesive rheology and dynamics solved using the material-point method (MPM), which combines Lagrangian particles for advection with a background grid for gradient computations. We evaluate the variability of this MPM sea ice code and compare it with the Los Alamos National Laboratory CICE code for a single year simulation of the Arctic basin using consistent ocean and atmospheric forcing. Sensitivities of ice volume, ice area, ice extent, root mean square (RMS) ice speed, central Arctic ice thickness,and central Arctic ice speed with respect to ten different dynamic and thermodynamic parameters are evaluated both individually and in combination using the Design Analysis Kit for Optimization and Terascale Applications (DAKOTA). We find similar responses for the two codes and some interesting seasonal variability in the strength of the parameters on the solution.

Peterson, Kara J.; Bochev, Pavel Blagoveston; Paskaleva, Biliana Stefanova

2010-12-01T23:59:59.000Z

91

Sensitivity of CUORE to Neutrinoless Double-Beta Decay  

SciTech Connect

In this paper, we study the sensitivity of CUORE, a bolometric double-beta decay experiment under construction at the Laboratori Nazionali del Gran Sasso in Italy. Two approaches to the computation of experimental sensitivity are discussed and compared, and the formulas and parameters used in the sensitivity estimates are provided. Assuming a background rate of 10{sup -2} cts/(keV kg y), we find that, after 5 years of live time, CUORE will have a 1#27;{sigma} sensitivity to the neutrinoless double-beta decay half-life of {caret T{sup 0{nu}}{sub 1/2}}(1{sigma}#27;) = 1.6x#2;10{sup 26} y and thus a potential to probe the effective Majorana neutrino mass down to 41-95 meV; the sensitivity at 1.64{sigma}#27;, which corresponds to 90% C.L., will be {caret T{sup 0{nu}}{sub 1/2}(1.64{sigma}#27;}) = 9.5x10{sup 25} y. This range is compared with the claim of observation of neutrinoless double-beta decay in {sup 76}Ge and the preferred range in the neutrino mass parameter space from oscillation results.

CUORE; Alessandria, F.; Andreotti, E.; Ardito, R.; Arnaboldi, C.; Avignone III, F. T.; Balata, M.; Bandac, I.; Banks, T. I.; Bari, G.; Beeman, J.; Bellini, F.; Bersani, A.; Biassoni, M.; Bloxham, T.; Brofferio, C.; Bryant, A.; Bucci, C.; Cai, X. Z.; Canonica, L.; Capelli, S.; Carbone, L.; Cardani, L.; Carrettoni, M.; Casali, N.; Chott, N.; Clemenza, M.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Dafinei, I.; Dally, A.; Biasi, A. De; Decowski, M. P.; Deninno, M. M.; Waard, A. de; Domizio, S. Di; Ejzak, L.; Faccini, R.; Fang, D. Q.; Farach, H. A.; Ferri, E.; Ferroni, F.; Fiorini, E.; Foggetta, L.; Franceschi, M. A.; Freedman, S. J.; Frossati, G.; Fujikawa, B. K.; Giachero, A.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Guardincerri, E.; Gutierrez, T. D.; Haller, E. E.; Han, K.; Heeger, K. M.; Huang, H. Z.; Ichimura, K.; Kadel, R.; Kazkaz, K.; Keppel, G.; Kogler, L.; Kolomensky, Yu. G.; Kraft, S.; Lenz, D.; Li, Y. L.; Liu, X.; Longo, E.; Ma, Y. G.; Maiano, C.; Maier, G.; Maino, M.; Mancini, C.; Martinez, C.; Martinez, M.; Maruyama, R. H.; Moggi, N.; Morganti, S.; Napolitano, T.; Newman, S.; Nisi, S.; Nones, C.; Norman, E. B.; Nucciotti, A.; Orio, F.; Orlandi, D.; Ouellet, J. L.; Pallavicini, M.; Palmieri, V.; Pattavina, L.; Pavan, M.; Pedretti, M.; Pessina, G.; Pirro, S.; Previtali, E.; Rampazzo, V.; Rimondi, F.; Rosenfeld, C.; Rusconi, C.; Salvioni, C.; Sangiorgio, S.; Schaeffer, D.; Scielzo, N. D.; Sisti, M.; Smith, A. R.; Stivanello, F.; Taffarello, L.; Terenziani, G.; Tian, W. D.; Tomei, C.; Trentalange, S.; Ventura, G.; Vignati, M.; Wang, B. S.; Wang, H. W.; Whitten Jr., C. A.; Wise, T.; Woodcraft, A.; Xu, N.; Zanotti, L.; Zarra, C.; Zhu, B. X.; Zucchelli, S.

2011-11-23T23:59:59.000Z

92

Multiple predictor smoothing methods for sensitivity analysis  

Science Conference Proceedings (OSTI)

The use of multiple predictor smoothing methods in sampling-based sensitivity analyses of complex models is investigated. Specifically, sensitivity analysis procedures based on smoothing methods employing the stepwise application of the following nonparametric ...

Curtis B. Storlie; Jon C. Helton

2005-12-01T23:59:59.000Z

93

Hydropower potential in Turkey  

Science Conference Proceedings (OSTI)

Turkey has a total hydropower potential of 433 GW that is equal to 1.2% of the total hydropower potential of the world and to 14% of European hydropower potential. Only 125 GW of the total hydroelectric potential of Turkey can be economically used. By the commissioning of new hydropower plants, which are under construction, 34% of the economically usable potential of the country would be tapped. At the present, hydropower energy is an important energy source for Turkey due to its useful characteristics such as being renewable, clean, and less of an impact on the environment, and a cheap and domestic energy source.

Kaygusuz, K. [Karadeniz Technical Univ., Trabzon (Turkey). Dept. of Chemistry

1999-08-01T23:59:59.000Z

94

Accelerator Mass Spectrometry: Extreme Sensitivity in Biological ...  

THE LLNL TECHNOLOGY COMPANY PRODUCT 24 Partnering Today: Technology Transfer Highlights Accelerator Mass Spectrometry: Extreme Sensitivity in Biological Research

95

Functionalized Gold Nanoparticles for Rapid, Ultra- sensitive ...  

A rapid, highly sensitive, inexpensive method to detect and identify specific hazardous environmental pollutants has been invented by ORNL ...

96

Nonlinear sensitivity analysis of reinforced concrete frames  

Science Conference Proceedings (OSTI)

Design sensitivity analysis is a necessary task for design optimization of structures. Methods of sensitivity analysis for linear systems have been developed and well documented in the literature; however there are a few such research works for nonlinear ... Keywords: Geometric effects, Material nonlinearity, Pushover, RCMRF, Sensitivity analysis

AliReza Habibi; Hamid Moharrami

2010-07-01T23:59:59.000Z

97

Network sensitivity to geographical configuration  

E-Print Network (OSTI)

Gravitational wave astronomy will require the coordinated analysis of data from the global network of gravitational wave observatories. Questions of how to optimally configure the global network arise in this context. We have elsewhere proposed a formalism which is employed here to compare different configurations of the network, using both the coincident network analysis method and the coherent network analysis method. We have constructed a network model to compute a figure-of-merit based on the detection rate for a population of standard-candle binary inspirals. We find that this measure of network quality is very sensitive to the geographic location of component detectors under a coincident network analysis, but comparatively insensitive under a coherent network analysis.

Antony C Searle; Susan M Scott; David E McClelland

2001-10-10T23:59:59.000Z

98

Potential Release Sites  

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

PRS PRS Potential Release Sites Legacy sites where hazardous materials are found to be above acceptable levels are collectively called potential release sites. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Less than 10 percent of the total number of potential release sites need to go through the full corrective action process. What are potential release sites? Potential release sites are areas around the Laboratory and the town of Los Alamos at which hazardous materials from past activities have been found. Some examples of potential release sites include septic tanks and associated drain lines chemical storage areas wastewater outfalls material disposal areas incinerators sumps firing ranges

99

Energy Resource Potential  

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

Resource Potential Resource Potential of Methane Hydrate Energy Resource Potential An introduction to the science and energy potential of a unique resource Disclaimer Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.

100

Interatomic Potentials Repository Project  

Science Conference Proceedings (OSTI)

... potentials appropriate for simulation of liquid and glass properties of ... Superalloy," Sandia National Laboratories Report Number SAND-95-8549C ...

2013-09-19T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Potential Conservation Laws  

E-Print Network (OSTI)

We prove that potential conservation laws have characteristics depending only on local variables if and only if they are induced by local conservation laws. Therefore, characteristics of pure potential conservation laws have to essentially depend on potential variables. This statement provides a significant generalization of results of the recent paper by Bluman, Cheviakov and Ivanova [J. Math. Phys., 2006, V.47, 113505]. Moreover, we present extensions to gauged potential systems, Abelian and general coverings and general foliated systems of differential equations. An example illustrating possible applications of proved statements is considered. A special version of the Hadamard lemma for fiber bundles and the notions of weighted jet spaces are proposed as new tools for the investigation of potential conservation laws.

Michael Kunzinger; Roman O. Popovych

2008-03-07T23:59:59.000Z

102

Quantum mechanics of graphene with a one-dimensional potential  

SciTech Connect

Electron states in graphene with a one-dimensional potential have been studied. An approximate solution has been obtained for a small angle between vectors of the incident electron momentum and potential gradient. Exactly solvable problems with a potential of the smoothened step type U(x) Utanh(x/a) and a potential with a singularity U(x) = -U/(|x| + d) are considered. The transmission/reflection coefficients and phases for various potential barriers are determined. A quasi-classical solution is obtained.

Miserev, D. S. [Novosibirsk State University (Russian Federation); Entin, M. V., E-mail: entin@isp.nsc.ru [Russian Academy of Sciences, Institute of Semiconductor Physics, Siberian Branch (Russian Federation)

2012-10-15T23:59:59.000Z

103

Potential Impact of Reservoir Engineering R&D on Geothermal Energy Costs  

SciTech Connect

A tutorial program for use on personal computers is being developed to evaluate the sensitivity of geothermal energy costs to potential technological improvements. Reservoir engineering R&D will reduce risk to the funding organization and in turn reduce the risk premium paid on a loan. The use of a risk premium was described as an investment banker’s option at the November 1986 “Future of Geothermal Energy Conference” in San Diego, California. In the sensitivity analysis, we propose to calculate an energy cost: (1) at the predicted production parameters of temperature, drawdown rate, etc., and (2) at the most likely worse case values. The differential higher cost of the worse case over the predicted case is the risk premium. Thus R&D that improves reservoir definition will reduce the worse-case-minus-predicted-case difference and the financial risk premium. Improvements in reservoir engineering can then be quantified in terms of reduced energy costs. This paper will discuss the proposed approach to obtain critique of the procedure and provide the best logic for use in evaluating the potential impact of reservoir engineering R&D.

Traeger, Richard K.; Entingh, Daniel

1987-01-20T23:59:59.000Z

104

Sensitivity in risk analyses with uncertain numbers.  

SciTech Connect

Sensitivity analysis is a study of how changes in the inputs to a model influence the results of the model. Many techniques have recently been proposed for use when the model is probabilistic. This report considers the related problem of sensitivity analysis when the model includes uncertain numbers that can involve both aleatory and epistemic uncertainty and the method of calculation is Dempster-Shafer evidence theory or probability bounds analysis. Some traditional methods for sensitivity analysis generalize directly for use with uncertain numbers, but, in some respects, sensitivity analysis for these analyses differs from traditional deterministic or probabilistic sensitivity analyses. A case study of a dike reliability assessment illustrates several methods of sensitivity analysis, including traditional probabilistic assessment, local derivatives, and a ''pinching'' strategy that hypothetically reduces the epistemic uncertainty or aleatory uncertainty, or both, in an input variable to estimate the reduction of uncertainty in the outputs. The prospects for applying the methods to black box models are also considered.

Tucker, W. Troy; Ferson, Scott

2006-06-01T23:59:59.000Z

105

Sensitivity analysis techniques for models of human behavior.  

SciTech Connect

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

Bier, Asmeret Brooke

2010-09-01T23:59:59.000Z

106

Sensitivity Studies for Third-Generation Gravitational Wave Observatories  

E-Print Network (OSTI)

Advanced gravitational wave detectors, currently under construction, are expected to directly observe gravitational wave signals of astrophysical origin. The Einstein Telescope, a third-generation gravitational wave detector, has been proposed in order to fully open up the emerging field of gravitational wave astronomy. In this article we describe sensitivity models for the Einstein Telescope and investigate potential limits imposed by fundamental noise sources. A special focus is set on evaluating the frequency band below 10Hz where a complex mixture of seismic, gravity gradient, suspension thermal and radiation pressure noise dominates. We develop the most accurate sensitivity model, referred to as ET-D, for a third-generation detector so far, including the most relevant fundamental noise contributions.

S. Hild; M. Abernathy; F. Acernese; P. Amaro-Seoane; N. Andersson; K. Arun; F. Barone; B. Barr; M. Barsuglia; M. Beker; N. Beveridge; S. Birindelli; S. Bose; L. Bosi; S. Braccini; C. Bradaschia; T. Bulik; E. Calloni; G. Cella; E. Chassande Mottin; S. Chelkowski; A. Chincarini; J. Clark; E. Coccia; C. Colacino; J. Colas; A. Cumming; L. Cunningham; E. Cuoco; S. Danilishin; K. Danzmann; R. De Salvo; T. Dent; R. De Rosa; L. Di Fiore; A. Di Virgilio; M. Doets; V. Fafone; P. Falferi; R. Flaminio; J. Franc; F. Frasconi; A. Freise; D. Friedrich; P. Fulda; J. Gair; G. Gemme; E. Genin; A. Gennai; A. Giazotto; K. Glampedakis; C. Gräf; M. Granata; H. Grote; G. Guidi; A. Gurkovsky; G. Hammond; M. Hannam; J. Harms; D. Heinert; M. Hendry; I. Heng; E. Hennes; J. Hough; S. Husa; S. Huttner; G. Jones; F. Khalili; K. Kokeyama; K. Kokkotas; B. Krishnan; T. G. F. Li; M. Lorenzini; H. Lück; E. Majorana; I. Mandel; V. Mandic; M. Mantovani; I. Martin; C. Michel; Y. Minenkov; N. Morgado; S. Mosca; B Mours; H. Müller-Ebhardt; P. Murray; R. Nawrodt; J. Nelson; R. Oshaughnessy; C. D. Ott; C. Palomba; A. Paoli; G. Parguez; A. Pasqualetti; R. Passaquieti; D. Passuello; L. Pinard; W. Plastino; R. Poggiani1; P. Popolizio; M. Prato; M. Punturo; P. Puppo; D. Rabeling; P. Rapagnani; J. Read; T. Regimbau; H. Rehbein; S. Reid; F. Ricci; F. Richard; A. Rocchi; S. Rowan; A. Rüdiger; L. Santamaría; B. Sassolas; B. Sathyaprakash; R. Schnabel; C. Schwarz; P. Seidel; A. Sintes; K. Somiya; F. Speirits; K. Strain; S Strigin; P. Sutton; S. Tarabrin; A. Thüring; J. van den Brand; M. van Veggel; C. van den Broeck; A. Vecchio; J. Veitch; F. Vetrano; A. Vicere; S. Vyatchanin; B. Willke; G. Woan; K. Yamamoto

2010-12-04T23:59:59.000Z

107

Turbine Tip Clearance Region De-Sensitization  

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

TURBINE TIP CLEARANCE REGION DE-SENSITIZATION Penn State & U. of Minnesota Lakshminarayana, Camci & Goldstein 079 * Experimental aerodynamic studies leading to the weakening...

108

Functionalized Gold Nanoparticles for Rapid, Ultra- sensitive ...  

and Ocean Optics) Patent Baohua Gu. Functionalized Gold Surface-Enhanced Raman Scattering Substrate for Rapid and Ultra-Sensitive Detection of Anionic Species

109

Heart and Electric Potential  

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

Heart and Electric Potential Name: Pete Location: NA Country: NA Date: NA Question: What is the electrical output that the SA Node andor AV Node put out when emitting an...

110

Daylighting potential in Thailand  

SciTech Connect

Daylighting has good potential for application in tropical climates. It can help save electric energy as well as reduce the daytime power demand substantially. It can bring another dimension of energy efficiency in addition to efficient lighting technology, as well as aesthetic value. Its integration with continuous-dimming electric lighting is found to be acceptable. However, fundamental research as well as daylighting application technology are required to realize the potential.

Chirarattananon, S.; Limmechokchai, B. [Asian Inst. of Tech., Bangkok (Thailand)

1996-12-01T23:59:59.000Z

111

Structure Sensitivity of Methanol Electrooxidation on Transition Metals  

DOE Green Energy (OSTI)

We have investigated the structure sensitivity of methanol electrooxidation on eight transition metals (Au, Ag, Cu, Pt, Pd, Ir, Rh, and Ni) using periodic, self-consistent density functional theory (DFTGGA). Using the adsorption energies of 16 intermediates on two different facets of these eight face-centeredcubic transition metals, combined with a simple electrochemical model, we address the differences in the reaction mechanism between the (111) and (100) facets of these metals. We investigate two separate mechanisms for methanol electrooxidation: one going through a CO* intermediate (the indirect pathway) and another that oxidizes methanol directly to CO2 without CO* as an intermediate (the direct pathway). A comparison of our results for the (111) and (100) surfaces explains the origin of methanol electrooxidation’s experimentally-established structure sensitivity on Pt surfaces. For most metals studied, on both the (111) and (100) facets, we predict that the indirect mechanism has a higher onset potential than the direct mechanism. Ni(111), Au(100), and Au(111) are the cases where the direct and indirect mechanisms have the same onset potential. For the direct mechanism, Rh, Ir, and Ni show a lower onset potential on the (111) facet, whereas Pt, Cu, Ag, and Au possess lower onset potential on the (100) facet. Pd(100) and Pd(111) have the same onset potential for the direct mechanism. These results can be rationalized by the stronger binding energy of adsorbates on the (100) facet versus the (111) facet. Using linear scaling relations, we establish reactivity descriptors for the (100) surface similar to those recently developed for the (111) surface; the free energies of adsorbed CO* and OH* can describe methanol electrooxidation trends on various metal surfaces reasonably well.

Ferrin, Peter A.; Mavrikakis, Manos

2009-10-14T23:59:59.000Z

112

Soil Moisture Estimation Using Thermal Inertia: Potential and Sensitivity to Data Conditions  

Science Conference Proceedings (OSTI)

Thermal inertia retrieval using a thermal infrared remote sensing technique has been examined as a possible method for estimating soil moisture. This method is an application of the theory that thermal inertia highly correlates with soil water ...

Dai Matsushima; Reiji Kimura; Masato Shinoda

2012-04-01T23:59:59.000Z

113

How to avoid a perfunctory sensitivity analysis  

Science Conference Proceedings (OSTI)

Mathematical modelers from different disciplines and regulatory agencies worldwide agree on the importance of a careful sensitivity analysis (SA) of model-based inference. The most popular SA practice seen in the literature is that of 'one-factor-at-a-time' ... Keywords: Mathematical modeling, One-at-a-time, Robustness, Sensitivity analysis, Uncertainty analysis

Andrea Saltelli; Paola Annoni

2010-12-01T23:59:59.000Z

114

Spectral sensitization of nanocrystalline solar cells  

DOE Patents (OSTI)

This invention relates to dye sensitized polycrystalline photoelectrochemical solar cells for use in energy transduction from light to electricity. It concerns the utility of highly absorbing organic chromophores as sensitizers in such cells and the degree to which they may be utilized alone and in combination to produce an efficient photoelectrochemical cell, e.g., a regenerative solar cell.

Spitler, Mark T. (Concord, MA); Ehret, Anne (Malden, MA); Stuhl, Louis S. (Bedford, MA)

2002-01-01T23:59:59.000Z

115

A practical pressure sensitive computer keyboard  

Science Conference Proceedings (OSTI)

A pressure sensitive computer keyboard is presented that independently senses the force level on every depressed key. The design leverages existing membrane technologies and is suitable for low-cost, high-volume manufacturing. A number of representative ... Keywords: force pressure sensitive keyboard

Paul H. Dietz; Benjamin Eidelson; Jonathan Westhues; Steven Bathiche

2009-10-01T23:59:59.000Z

116

An assessment of BWR (boiling water reactor) Mark-II containment challenges, failure modes, and potential improvements in performance  

SciTech Connect

This report assesses challenges to BWR Mark II containment integrity that could potentially arise from severe accidents. Also assessed are some potential improvements that could prevent core damage or containment failure, or could mitigate the consequences of such failure by reducing the release of fission products to the environment. These challenges and improvements are analyzed via a limited quantitative risk/benefit analysis of a generic BWR/4 reactor with Mark II containment. Point estimate frequencies of the dominant core damage sequences are obtained and simple containment event trees are constructed to evaluate the response of the containment to these severe accident sequences. The resulting containment release modes are then binned into source term release categories, which provide inputs to the consequence analysis. The output of the consequences analysis is used to construct an overall base case risk profile. Potential improvements and sensitivities are evaluated by modifying the event tree spilt fractions, thus generating a revised risk profile. Several important sensitivity cases are examined to evaluate the impact of phenomenological uncertainties on the final results. 75 refs., 25 figs., 65 tabs.

Kelly, D.L.; Jones, K.R.; Dallman, R.J. (EG and G Idaho, Inc., Idaho Falls, ID (USA)); Wagner, K.C. (Science Applications International Corp., Albuquerque, NM (USA))

1990-07-01T23:59:59.000Z

117

Adsorption potential of alkanes on graphite  

SciTech Connect

In the framework of the extended Hueckel theory, the short-range repulsive interaction of alkanes with graphite is determined with band structure calculations from the difference between the total energy of the system (adsorbate + graphite) and the energy of the separated species. This theoretical approach enables one to determine the coefficients of the repulsive exponential term in the atom-atom potential simplified expression. The adsorption potential of alkanes on graphite is obtained when the dispersion atom-atom potential, which takes into account the high anisotropic polarizability of graphite, is added to the repulsive term. The equilibrium distance of methane on graphite and its vibrational frequency perpendicular to the surface are in good agreement with the experimental ones measured at low temperatures by neutron scattering techniques. The van der Waals radii of carbon and hydrogen atoms are obtained from the equilibrium distance of the atom-atom potential simplified expression. They are compared with those used in the literature to establish the semiempirical potential expressions. The molecular statistical theory of adsorption based on the atom-atom potential function enables one to predict the second adsorbate/surface virial coefficient and the thermodynamic characteristics of adsorption, measured for methane, ethane, and propane on graphitized carbon black at zero surface coverage by static and gas chromatographic methods.

Vidal-Madjar, C.; Minot, C.

1987-07-16T23:59:59.000Z

118

Potential energy for quarks  

SciTech Connect

It is argued on theoretical and phenomenological grounds that confinement of quarks is intrinsically a many-body interaction. The Born-Oppenheimer approximation to the bag model is shown to give rise to a static potential energy that consists of a sum of two-body Coulomb terms and a many-body confining term. Following the success of this potential in heavy Q anti Q systems it is being applied to Q/sup 2/ anti Q/sup 2/. Preliminary calculations suggest that dimeson bound states with exotic flavor, such as bb anti s anti s, exist. 13 refs., 5 figs.

Heller, L.

1985-01-01T23:59:59.000Z

119

TRANSPORTATION: THE POTENTIAL  

E-Print Network (OSTI)

INTERMODAL TRANSPORTATION: THE POTENTIAL AND THE CHALLENGE A Summary Report 2003 #12;June 2003 To the Reader This report summarizes the second James L. Oberstar Forum on Transportation Policy and Technology. Over two days, we explored the chal- lenges and opportunities in intermodal transportation, addressing

Minnesota, University of

120

Adjoint sensitivity analysis of an ultrawideband antenna  

SciTech Connect

The frequency domain finite element method using H(curl)-conforming finite elements is a robust technique for full-wave analysis of antennas. As computers become more powerful, it is becoming feasible to not only predict antenna performance, but also to compute sensitivity of antenna performance with respect to multiple parameters. This sensitivity information can then be used for optimization of the design or specification of manufacturing tolerances. In this paper we review the Adjoint Method for sensitivity calculation, and apply it to the problem of optimizing a Ultrawideband antenna.

Stephanson, M B; White, D A

2011-07-28T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Distributed Energy Resources at Naval Base Ventura County Building1512: A Sensitivity Analysis  

Science Conference Proceedings (OSTI)

This report is the second of a two-part study by BerkeleyLab of a DER (distributed energy resources) system at Navy Base VenturaCounty (NBVC). First, a preliminary assessment ofthe cost effectivenessof distributed energy resources at Naval Base Ventura County (NBVC)Building 1512 was conducted in response to the base s request for designassistance to the Federal Energy Management Program (Bailey and Marnay,2004). That report contains a detailed description of the site and theDER-CAM (Consumer Adoption Model) parameters used. This second reportcontains sensitivity analyses of key parameters in the DER system modelof Building 1512 at NBVC and additionally considers the potential forabsorption-powered refrigeration.The prior analysis found that under thecurrent tariffs, and given assumptions about the performance andstructure of building energy loads and available generating technologycharacteristics, installing a 600 kW DER system with absorption coolingand recovery heat capabilities could deliver cost savings of about 14percent, worth $55,000 per year. However, under current conditions, thisstudy also suggested that significant savings could be obtained ifBuilding 1512 changed from its current direct access contract to a SCETOU-8 (Southern California Edison time of use tariff number 8) ratewithout installing a DER system. Evaluated on this tariff, the potentialsavings from installation of a DER system would be about 4 percent of thetotal bill, or $16,000 per year.

Bailey, Owen C.; Marnay, Chris

2005-06-05T23:59:59.000Z

122

Sensitivity of numerical dispersion modeling to explosive source parameters  

Science Conference Proceedings (OSTI)

The calculation of downwind concentrations from non-traditional sources, such as explosions, provides unique challenges to dispersion models. The US Department of Energy has assigned the Atmospheric Release Advisory Capability (ARAC) at the Lawrence Livermore National Laboratory (LLNL) the task of estimating the impact of accidental radiological releases to the atmosphere anywhere in the world. Our experience includes responses to over 25 incidents in the past 16 years, and about 150 exercises a year. Examples of responses to explosive accidents include the 1980 Titan 2 missile fuel explosion near Damascus, Arkansas and the hydrogen gas explosion in the 1986 Chernobyl nuclear power plant accident. Based on judgment and experience, we frequently estimate the source geometry and the amount of toxic material aerosolized as well as its particle size distribution. To expedite our real-time response, we developed some automated algorithms and default assumptions about several potential sources. It is useful to know how well these algorithms perform against real-world measurements and how sensitive our dispersion model is to the potential range of input values. In this paper we present the algorithms we use to simulate explosive events, compare these methods with limited field data measurements, and analyze their sensitivity to input parameters. 14 refs., 7 figs., 2 tabs.

Baskett, R.L. (EG and G Energy Measurements, Inc., Pleasanton, CA (USA)); Cederwall, R.T. (Lawrence Livermore National Lab., CA (USA))

1991-02-13T23:59:59.000Z

123

Tropospheric Water Vapor and Climate Sensitivity  

Science Conference Proceedings (OSTI)

Estimates are made of the effect of changes in tropospheric water vapor on the climate sensitivity to doubled carbon dioxide (CO2), using a coarse resolution atmospheric general circulation model coupled to a slab mixed layer ocean. The ...

Edwin K. Schneider; Ben P. Kirtman; Richard S. Lindzen

1999-06-01T23:59:59.000Z

124

On the Sensitivity of Weather Radars  

Science Conference Proceedings (OSTI)

This paper discusses the subject of weather radar system sensitivity from a general point of view, with emphasis an the influence of wavelength. Expressions for the echo signal-to-noise ratio are examined using a detection theory approach to ...

Paul L. Smith

1986-12-01T23:59:59.000Z

125

Oxygen Sensitivity of Krypton and Lyman-? Hygrometers  

Science Conference Proceedings (OSTI)

The oxygen sensitivity of krypton and Lyman-? hygrometers is studied. Using a dewpoint generator and a controlled nitrogen/oxygen flow the extinction coefficients of five hygrometers associated with the third-order Taylor expansion of the Lambert–...

Arjan van Dijk; Wim Kohsiek; Henk A. R. de Bruin

2003-01-01T23:59:59.000Z

126

Adjoint Sensitivity and Predictability of Tropical Cyclogenesis  

Science Conference Proceedings (OSTI)

The sensitivity of tropical cyclogenesis and subsequent intensification is explored by applying small perturbations to the initial state in the presence of organized mesoscale convection and synoptic-scale forcing using the adjoint and tangent ...

James D. Doyle; Carolyn A. Reynolds; Clark Amerault; Jonathan Moskaitis

2012-12-01T23:59:59.000Z

127

Calibration Technique for Polarization-Sensitive Lidars  

Science Conference Proceedings (OSTI)

Polarization-sensitive lidars have proven to be highly effective in discriminating between spherical and nonspherical particles in the atmosphere. These lidars use a linearly polarized laser and are equipped with a receiver that can separately ...

J. M. Alvarez; M. A. Vaughan; C. A. Hostetler; W. H. Hunt; D. M. Winker

2006-05-01T23:59:59.000Z

128

Vortex-Driven Sensitivity in Deformation Flow  

Science Conference Proceedings (OSTI)

A sensitivity mechanism for the interaction of two vortices in a two-dimensional deformation background flow is explored. A nonlinear model describing the vortex interaction up to a critical merging distance is developed. This model shows that in ...

Zhiyuan Liu; Paul J. Roebber

2008-12-01T23:59:59.000Z

129

How to Obtain Authorization to Import and/or Export Natural Gas...  

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

How to Obtain Authorization to Import andor Export Natural Gas and LNG How to Obtain Authorization to Import andor Export Natural Gas and LNG Petroleum Reserves International...

130

How to Obtain Authorization to Import and/or Export Natural Gas...  

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

Services Natural Gas Regulation How to Obtain Authorization to Import andor Export Natural Gas and LNG How to Obtain Authorization to Import andor Export Natural Gas...

131

Reassessing Wind Potential Estimates for India: Economic and Policy Implications  

DOE Green Energy (OSTI)

We assess developable on-shore wind potential in India at three different hub-heights and under two sensitivity scenarios – one with no farmland included, the other with all farmland included. Under the “no farmland included” case, the total wind potential in India ranges from 748 GW at 80m hub-height to 976 GW at 120m hub-height. Under the “all farmland included” case, the potential with a minimum capacity factor of 20 percent ranges from 984 GW to 1,549 GW. High quality wind energy sites, at 80m hub-height with a minimum capacity factor of 25 percent, have a potential between 253 GW (no farmland included) and 306 GW (all farmland included). Our estimates are more than 15 times the current official estimate of wind energy potential in India (estimated at 50m hub height) and are about one tenth of the official estimate of the wind energy potential in the US.

Phadke, Amol; Bharvirkar, Ranjit; Khangura, Jagmeet

2011-09-15T23:59:59.000Z

132

Finite temperature 2-color QCD for real and imaginary chemical potential  

E-Print Network (OSTI)

In this work we study the finite temperature SU(2) gauge theory with staggered fermions for real and imaginary chemical potential. We test the method of analytical continuation of Monte Carlo results obtained for imaginary chemical potential, by comparison with those obtained {\\em directly} for real chemical potential.

Pietro Giudice; Alessandro Papa

2004-09-07T23:59:59.000Z

133

COMPARISON OF SEISMIC SIGNATURES OF FLARES OBTAINED BY SOHO/MICHELSON DOPPLER IMAGER AND GONG INSTRUMENTS  

Science Conference Proceedings (OSTI)

The first observations of seismic responses to solar flares were carried out using time-distance (TD) and holography techniques applied to SOHO/Michelson Doppler Imager (MDI) Dopplergrams obtained from space and unaffected by terrestrial atmospheric disturbances. However, the ground-based network GONG is potentially a very valuable source of sunquake observations, especially in cases where space observations are unavailable. In this paper, we present an updated technique for pre-processing of GONG observations for the application of subjacent vantage holography. Using this method and TD diagrams, we investigate several sunquakes observed in association with M- and X-class solar flares and compare the outcomes with those reported earlier using MDI data. In both GONG and MDI data sets, for the first time, we also detect the TD ridge associated with the 2001 September 9 flare. Our results show reassuringly positive identification of sunquakes from GONG data that can provide further information about the physics of seismic processes associated with solar flares.

Zharkov, S.; Matthews, S. A. [Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, RH5 6NT (United Kingdom); Zharkova, V. V. [Horton D Building, Department of Mathematics, University of Bradford, Bradford, BD7 1DP (United Kingdom)

2011-10-01T23:59:59.000Z

134

California Industrial Energy Efficiency Potential  

E-Print Network (OSTI)

The Potential for Energy Efficiency. Prepared for The EnergyIndustrial Sector Energy Efficiency Potential Study - DraftIndustrial Energy Efficiency Market Characterization Study.

Coito, Fred; Worrell, Ernst; Price, Lynn; Masanet, Eric; Rafael Friedmann; Rufo, Mike

2005-01-01T23:59:59.000Z

135

Vector potential photoelectron microscopy  

SciTech Connect

A new class of electron microscope has been developed for the chemical microanalysis of a wide range of real world samples using photoelectron spectroscopy. Highly structured, three-dimensional samples, such as fiber mats and fracture surfaces can be imaged, as well as insulators and magnetic materials. The new microscope uses the vector potential field from a solenoid magnet as a spatial reference for imaging. A prototype instrument has demonstrated imaging of uncoated silk, magnetic steel wool, and micron-sized single strand tungsten wires.

Browning, R. [R. Browning Consultants, 14 John Street, Shoreham, New York 11786 (United States)

2011-10-15T23:59:59.000Z

136

WP 3 Report: Biomass Potentials Biomass production potentials  

E-Print Network (OSTI)

WP 3 Report: Biomass Potentials 1 Biomass production potentials in Central and Eastern Europe under different scenarios Final report of WP3 of the VIEWLS project, funded by DG-Tren #12;WP 3 Report: Biomass Potentials 2 Report Biomass production potentials in central and Eastern Europe under different scenarios

137

Feedback and sensitivity in an electrical circuit: An analog for climate models  

SciTech Connect

Earth's climate sensitivity is often interpreted in terms of feedbacks that can alter the sensitivity from that of a no-feedback Stefan-Boltzmann radiator, with the feedback concept and algebra introduced by analogy to the use of this concept in the electronics literature. This analogy is quite valuable in interpreting the sensitivity of the climate system, but usage of this algebra and terminology in the climate literature is often inconsistent, with resultant potential for confusion and loss of physical insight. Here a simple and readily understood electrical resistance circuit is examined in terms of feedback theory to introduce and define the terminology that is used to quantify feedbacks. This formalism is applied to the feedbacks in an energy-balance model of Earth's climate and used to interpret the magnitude of feedback in the climate system that corresponds to present estimates of Earth's climate sensitivity.

Schwartz, S.E.

2010-07-27T23:59:59.000Z

138

Extending the Sensitivity of Air Cerenkov Telescopes  

E-Print Network (OSTI)

Over the last decade, the Imaging Air Cerenkov technique has proven itself to be an extremely powerful means to study very energetic gamma-radiation from a number of astrophysical sources in a regime which is not practically accessible to satellite-based instruments. The further development of this approach in recent years has generally concentrated on increasing the density of camera pixels, increasing the mirror area and using multiple telescopes. Here we present a practical method to substantially improve the sensitivity of Atmospheric Cerenkov Telescopes using wide-field cameras with a relatively course density of photomultiplier tubes. The 2-telescope design considered here is predicted to be more than ~3 times more sensitive than existing/planned arrays in the regime above 300 GeV for continuously emitting sources; up to ~10 times more sensitive for hour-scale emission (relevant for episodic sources, such as AGN); significantly more sensitive in the regime above 10 TeV; and possessing a sky coverage which is roughly an order of magnitude larger than existing instruments. It should be possible to extend this approach for even further improvement in sensitivity and sky coverage.

I. de la Calle Perez; S. D. Biller

2006-02-13T23:59:59.000Z

139

In-air and underwater hearing sensitivity of a northern elephant seal (Mirounga angustirostris)  

E-Print Network (OSTI)

In-air and underwater hearing sensitivity of a northern elephant seal (Mirounga angustirostris) D. Kastak and R.J. Schusterman Abstract: In-air and underwater sound detection thresholds were obtainedPa). The upper frequency limit in air was approximately 20 kHz. The underwater audiogram is similar to those

Reichmuth, Colleen

140

Renewables in India : Status and Future Potential  

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

Renewables in India : Status and Future Potential Renewables in India : Status and Future Potential Speaker(s): Luis Fernandes Date: July 9, 2007 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose We analyse the status and the trends in the growth of renewables in India. We propose a methodology linking micro-simulation to macro-modelling to obtain technical and economic potential estimates for solar water heaters in residential and commercial and biomass gasifiers for thermal applications in industry. We assess the sustainability of renewables based on the criteria of life cycle cost, net energy ratio, resource constraint and greenhouse gas emissions. The renewable based technologies seem to be sustainable based on all criteria, except the high life cycle cost. In some cases e.g. in wind and biomass based systems land availability may

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Gravity and the quantum potential  

E-Print Network (OSTI)

We review some material connecting gravity and the quantum potential and provide a few new observations.

Robert Carroll

2004-06-02T23:59:59.000Z

142

Energy Efficiency Potential Assessment: (Appendices)  

Science Conference Proceedings (OSTI)

This document contains the appendices to EPRI Report 1008911, "Energy Efficiency Potential Assessment."

2003-07-28T23:59:59.000Z

143

Novel Composite Materials Demonstrate Ultra-sensitivity  

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

2, Issue 25 2, Issue 25 Novel Composite Materials Demonstrate Ultra-sensitivity Gold nanowires on graphite templates used in gas sensing application page 2 Coronary Stent Wins Technology Transfer Award page 4 University of Oregon Team Wins Competition for Commercializing NETL Technology page 5 the ENERGY lab NATIONAL ENERGY TECHNOLOGY LABORATORY 2 Novel Composite Materials Demonstrate Ultra-sensitivity-Gold nanowires on graphite templates used in gas sensing applications ____________________2 Coronary Stent Wins Technology Transfer Award ________4 University of Oregon Team Wins Competition for Commercializing NETL Technology __________________5 NETL & WVU Researchers Design New Catalysts for CO 2 Management ___________________________________6 Structurally Dynamic MOF Sorbent Selectively Adsorbs

144

Sensitive interferometric video thermal wave imager  

Science Conference Proceedings (OSTI)

A new method of parallel thermal wave imaging is demonstrated in which the thermal wave image of a heated sample is converted into an optical phase image which is sensitively probed by a Twyman–Green interferometer. The sample is mounted onto an assembly of optical layers which acts as a temperature sensitive mirror.Heat conduction from the sample to this mirror results in a two?dimensional distribution of optical phase which is probed broadfield by the interferometer. The resulting transmission thermal wave image has characteristics analogous to those of photopyroelectric images. The interferogram produced in the interferometer may be recorded by videography

J. F. Power

1996-01-01T23:59:59.000Z

145

Ground potential rise monitor  

SciTech Connect

A device and method for detecting ground potential rise (GPR) comprising positioning a first electrode and a second electrode at a distance from each other into the earth. The voltage of the first electrode and second electrode is attenuated by an attenuation factor creating an attenuated voltage. The true RMS voltage of the attenuated voltage is determined creating an attenuated true RMS voltage. The attenuated true RMS voltage is then multiplied by the attenuation factor creating a calculated true RMS voltage. If the calculated true RMS voltage is greater than a first predetermined voltage threshold, a first alarm is enabled at a local location. If user input is received at a remote location acknowledging the first alarm, a first alarm acknowledgment signal is transmitted. The first alarm acknowledgment signal is then received at which time the first alarm is disabled.

Allen, Zachery W. (Mandan, ND); Zevenbergen, Gary A. (Arvada, CO)

2012-04-03T23:59:59.000Z

146

Controlled-Potential Electrolysis  

Science Conference Proceedings (OSTI)

Table 2   Metals determined by controlled-potential coulometry...27 Silver Pt Ag + â?? Ag(s) 0.1 M H 2 SO 4 14 , 28 Technetium Hg Tc 7+ â?? Tc 3+ Acetate-tripolyphosphate 29 Thallium Pt Tl + â?? Tl 3+ 1 M HCl 30 Tin Hg Sn 4+ Sn(Hg) 3 M KBr, 0.2 M HBr 31 Titanium Hg Ti 4+ â?? Ti 3+ 6â??9 M H 2 SO 4 32 Uranium Hg U 6+ â?? U 4+ 0.5 M H 2 SO 4 33 Vanadium Pt V 5+ â?? V 4+ V 4+ â?? V 5+ 1.5...

147

Chiral magnetic effect in lattice QCD with chiral chemical potential  

E-Print Network (OSTI)

We perform a first lattice QCD simulation including two-flavor dynamical fermion with chiral chemical potential. Because the chiral chemical potential gives rise to no sign problem, we can exactly analyze a chirally asymmetric QCD matter by the Monte Carlo simulation. By applying an external magnetic field to this system, we obtain a finite induced current along the magnetic field, which corresponds to the chiral magnetic effect. The obtained induced current is proportional to the magnetic field and to the chiral chemical potential, which is consistent with an analytical prediction.

Yamamoto, Arata

2011-01-01T23:59:59.000Z

148

INSPECTION OF CYBER SECURITY STANDARDS FOR SENSITIVE PERSONAL...  

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

CYBER SECURITY STANDARDS FOR SENSITIVE PERSONAL INFORMATION, IG-0531 INSPECTION OF CYBER SECURITY STANDARDS FOR SENSITIVE PERSONAL INFORMATION, IG-0531 The Office of Inspector...

149

A Sensitivity Study of Building Performance Using 30-Year Actual...  

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

Contacts Media Contacts A Sensitivity Study of Building Performance Using 30-Year Actual Weather Data Title A Sensitivity Study of Building Performance Using 30-Year Actual...

150

Temperature Sensitivity of Black Carbon Decomposition and  

E-Print Network (OSTI)

Temperature Sensitivity of Black Carbon Decomposition and Oxidation B I N H T H A N H N G U Y E N to physical protection, chemical recalcitrance influences SOC decomposition rates. Black carbon (BC isotope geochemistry and nanomorphology of soil black carbon: Black chernozemic soils in central Europe

Lehmann, Johannes

151

Precise shape analysis using field sensitivity  

Science Conference Proceedings (OSTI)

We present a static shape analysis technique to infer the shapes of the heap structures created by a program at run time. Our technique is field sensitive in that it uses field information to compute the shapes. The shapes of the heap structures are ... Keywords: Compilers, Dataflow analysis, Heap analysis, Shape analysis, Static analysis

Sandeep Dasgupta, Amey Karkare, Vinay Kr Reddy

2013-06-01T23:59:59.000Z

152

Burst Detector Sensitivity: Past, Present & Future  

E-Print Network (OSTI)

Burst Monitor (GBM) and EXIST as a function of a burst’s spectrum and duration. A detector’s overall burst sensitivity depends on its energy sensitivity and set of accumulations times ?t; these two factors shape the detected burst population. For example, relative to BATSE, the BAT’s softer energy band decreases the detection rate of short, hard bursts, while the BAT’s longer accumulation times increase the detection rate of long, soft bursts. Consequently, Swift is detecting long, low fluence bursts (2-3 × fainter than BATSE). What is the relative sensitivity of different detectors for detecting gamma-ray bursts, and how should this sensitivity be compared? How do these differences shape the observed burst populations, which must be taken into account in determining the underlying burst distribution? Here I compare BATSE’s Large Area Detectors on CGRO (the past), the Burst Alert Telescope (BAT)[1] on Swift (the present), and the GLAST Burst Monitor (GBM) and EXIST (the future). BATSE and the GBM are/were sets of NaI(Tl) detectors while the BAT and EXIST are/will be CZT coded mask detectors. The energy range of NaI(Tl) detectors is ?20–1000 keV while for CZT it is ?10–150 keV. I apply a semi-analytic methodology using simplified models of the trigger systems of the

David L. B

2006-01-01T23:59:59.000Z

153

Sensitivity filtering from a continuum mechanics perspective  

Science Conference Proceedings (OSTI)

In topology optimization filtering is a popular approach for preventing numerical instabilities. This short note shows that the well-known sensitivity filtering technique, that prevents checkerboards and ensures mesh-independent designs in density-based ... Keywords: Filtering, Regularization, Topology optimization

Ole Sigmund; Kurt Maute

2012-10-01T23:59:59.000Z

154

High sensitivity permeation measurement system for 'ultrabarrier' thin films  

SciTech Connect

The authors demonstrate a new technique for high sensitivity gas permeation measurements by integrating mass spectrometry with programed accumulation, detection, and evacuation of permeant. After passing through the film of interest, the gas permeant is captured and accumulated in an isolated ultrahigh vacuum (UHV) volume. The permeant is then allowed to enter an adjacent residual gas analyzer (RGA) and the resulting partial pressure increase is correlated with the steady state permeation rate. Calibrated results are given for helium and argon permeation through polymer films. The measured detection limits of the system are 1.8x10{sup -4} cm{sup 3}/m{sup 2} day for helium and 2.5x10{sup -4} cm{sup 3}/m{sup 2} day for argon. Both values are several orders of magnitude lower than what is available from commercial instruments or similar RGA-based instruments. Potential applications of this technique include measurement of oxygen and water vapor permeation with sensitivities required for assessment of ultrabarrier coatings.

Zhang Xiaodong; Lewis, Jay S.; Wolter, Scott D.; Parker, Charles B.; Glass, Jeffrey T. [Pratt School of Engineering, Duke University, Durham, North Carolina 27708 (United States); RTI International, Research Triangle Park, North Carolina 27709 (United States); Pratt School of Engineering, Duke University, Durham, North Carolina 27708 (United States)

2007-11-15T23:59:59.000Z

155

Lifting hydro's potential  

Science Conference Proceedings (OSTI)

Electric utilities are taking another look at potential sites for hydroelectric installations, reevaluating sites that had been uneconomic to develop and those that can be renovated or expanded. Both large- and small-scale facilities now offer the advantages of free fuel, no air or thermal pollution, and no waste - making hydro an attractive way to increase utility capacity. The Electric Power Research Institute (EPRI) is participating in screening studies which evaluate the unique characteristics of specific sites and recommend technical improvements for better water control and a higher output. Pumped-hydro facilities are increasing, with new attention going to underground storage as new aboveground sites become harder to find. The institutional hurdles of licensing and regulation, interference with recreational and shoreline activities, down-stream water temperature changes, fish migration, and insurance are often in conflict. EPRI's screening program includes a simplified cost/benefit analysis and a site characterization, which utilities can use for their evaluation. Future research will explore a new financing arrangement that will lower front-end costs. (DCK)

Lihach, N.; Ferreira, A.

1980-12-01T23:59:59.000Z

156

SunShot Initiative: Dye-Sensitized Solar Cells  

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

Dye-Sensitized Solar Cells to Dye-Sensitized Solar Cells to someone by E-mail Share SunShot Initiative: Dye-Sensitized Solar Cells on Facebook Tweet about SunShot Initiative: Dye-Sensitized Solar Cells on Twitter Bookmark SunShot Initiative: Dye-Sensitized Solar Cells on Google Bookmark SunShot Initiative: Dye-Sensitized Solar Cells on Delicious Rank SunShot Initiative: Dye-Sensitized Solar Cells on Digg Find More places to share SunShot Initiative: Dye-Sensitized Solar Cells on AddThis.com... Concentrating Solar Power Photovoltaics Research & Development Crystalline Silicon Thin Films Multijunctions Organic Photovoltaics Dye-Sensitized Solar Cells Competitive Awards Systems Integration Balance of Systems Dye-Sensitized Solar Cells Graphic showing the seven layers of a dye-sensitized PV cell: electrode, hole conductor, dope, TiO2, blocking layer, transparent conductive oxide, and glass.

157

PETROLEUM AND PETROLEUM/COAL BLENDS AS FEEDSTOCKS IN LABORATORY-SCALE AND PILOT-SCALE COKERS TO OBTAIN CARBONS OF POTENTIALLY HIGH VALUE.  

E-Print Network (OSTI)

??The main goal of this research is to understand how the chemical composition of the feedstock and reactor design affects the quality of the coke… (more)

Escallon, Maria

2008-01-01T23:59:59.000Z

158

RANGELAND SEQUESTRATION POTENTIAL ASSESSMENT  

DOE Green Energy (OSTI)

Rangelands occupy approximately half of the world's land area and store greater than 10% of the terrestrial biomass carbon and up to 30% of the global soil organic carbon. Although soil carbon sequestration rates are generally low on rangelands in comparison to croplands, increases in terrestrial carbon in rangelands resulting from management can account for significant carbon sequestration given the magnitude of this land resource. Despite the significance rangelands can play in carbon sequestration, our understanding remains limited. Researchers conducted a literature review to identify sustainably management practices that conserve existing rangeland carbon pools, as well as increase or restore carbon sequestration potentials for this type of ecosystem. The research team also reviewed the impact of grazing management on rangeland carbon dynamics, which are not well understood due to heterogeneity in grassland types. The literature review on the impact of grazing showed a wide variation of results, ranging from positive to negative to no response. On further review, the intensity of grazing appears to be a major factor in controlling rangeland soil organic carbon dynamics. In 2003, researchers conducted field sampling to assess the effect of several drought years during the period 1993-2002. Results suggested that drought can significantly impact rangeland soil organic carbon (SOC) levels, and therefore, carbon sequestration. Resampling was conducted in 2006; results again suggested that climatic conditions may have overridden management effects on SOC due to the ecological lag of the severe drought of 2002. Analysis of grazing practices during this research effort suggested that there are beneficial effects of light grazing compared to heavy grazing and non-grazing with respect to increased SOC and nitrogen contents. In general, carbon storage in rangelands also increases with increased precipitation, although researchers identified threshold levels of precipitation where sequestration begins to decrease.

Lee Spangler; George F. Vance; Gerald E. Schuman; Justin D. Derner

2012-03-31T23:59:59.000Z

159

Monte Carlo algorithms for evaluating Sobol' sensitivity indices  

Science Conference Proceedings (OSTI)

Sensitivity analysis is a powerful technique used to determine robustness, reliability and efficiency of a model. The main problem in this procedure is the evaluating total sensitivity indices that measure a parameter's main effect and all the interactions ... Keywords: Adaptive Monte Carlo algorithm, Global sensitivity indices, Multidimensional numerical integration, Sensitivity analysis

I. Dimov; R. Georgieva

2010-11-01T23:59:59.000Z

160

Sensitivity testing of liquid high explosives  

SciTech Connect

This article describes a test procedure for a liquid high explosive. The liquid to be tested is NTN, a mixture of nitromethane, tetranitomethane, and 1-nitropropane in 52, 33.3, and 14.7 weight per cent. The test is to study the sensitivity of the explosive to shock by firing it in projectiles from a M1A1 155mm howlitzer, with a charge such that it will not exceed 16,500 g`s acceleration.

O`Connell, L.

1961-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Evaluation of Global Onshore Wind Energy Potential and Generation Costs  

SciTech Connect

In this study, we develop an updated global estimate of onshore wind energy potential using reanalysis wind speed data, along with updated wind turbine technology performance and cost assumptions as well as explicit consideration of transmission distance in the calculation of transmission costs. We find that wind has the potential to supply a significant portion of world energy needs, although this potential varies substantially by region as well as with assumptions such as on what types of land can be used to site wind farms. Total global wind potential under central assumptions is estimated to be approximately 89 petawatt hours per year at less than 9 cents/kWh with substantial regional variations. One limitation of global wind analyses is that the resolution of current global wind speed reanalysis data can result in an underestimate of high wind areas. A sensitivity analysis of eight key parameters is presented. Wind potential is sensitive to a number of input parameters, particularly those related to land suitability and turbine density as well as cost and financing assumptions which have important policy implications. Transmission cost has a relatively small impact on total wind costs, changing the potential at a given cost by 20-30%. As a result of sensitivities studied here we suggest that further research intended to inform wind supply curve development focus not purely on physical science, such as better resolved wind maps, but also on these less well-defined factors, such as land-suitability, that will also have an impact on the long-term role of wind power.

Zhou, Yuyu; Luckow, Patrick; Smith, Steven J.; Clarke, Leon E.

2012-06-20T23:59:59.000Z

162

Does Model Sensitivity to Changes in CO2 Provide a Measure of Sensitivity to Other Forcings?  

Science Conference Proceedings (OSTI)

Simulation of both the climate of the twentieth century and a future climate change requires taking into account numerous forcings, while climate sensitivities of general circulation models are defined as the equilibrium surface warming due to a ...

Andrei P. Sokolov

2006-07-01T23:59:59.000Z

163

Dye-sensitized Schottky barrier solar cells  

DOE Patents (OSTI)

A low-cost dye-sensitized Schottky barrier solar cell comprised of a substrate of semiconductor with an ohmic contact on one face, a sensitizing dye adsorbed onto the opposite face of the semiconductor, a transparent thin-film layer of a reducing agent over the dye, and a thin-film layer of metal over the reducing agent. The ohmic contact and metal layer constitute electrodes for connection to an external circuit and one or the other or both are made transparent to permit light to penetrate to the dye and be absorbed therein for generating electric current. The semiconductor material chosen to be the substrate is one having a wide bandgap and which therefore is transparent; the dye selected is one having a ground state within the bandgap of the semiconductor to generate carriers in the semiconductor, and a first excited state above the conduction band edge of the semiconductor to readily conduct electrons from the dye to the semiconductor; the reducing agent selected is one having a ground state above the ground state of the sensitizer to provide a plentiful source of electrons to the dye during current generation and thereby enhance the generation; and the metal for the thin-film layer of metal is selected to have a Fermi level in the vicinity of or above the ground state of the reducing agent to thereby amply supply electrons to the reducing agent.

Skotheim, Terje A. (Berkeley, CA)

1978-01-01T23:59:59.000Z

164

Stellarator Coil Design and Plasma Sensitivity  

SciTech Connect

The rich information contained in the plasma response to external magnetic perturbations can be used to help design stellarator coils more effectively. We demonstrate the feasibility by first devel- oping a simple, direct method to study perturbations in stellarators that do not break stellarator symmetry and periodicity. The method applies a small perturbation to the plasma boundary and evaluates the resulting perturbed free-boundary equilibrium to build up a sensitivity matrix for the important physics attributes of the underlying configuration. Using this sensitivity information, design methods for better stellarator coils are then developed. The procedure and a proof-of-principle application are given that (1) determine the spatial distributions of external normal magnetic field at the location of the unperturbed plasma boundary to which the plasma properties are most sen- sitive, (2) determine the distributions of external normal magnetic field that can be produced most efficiently by distant coils, (3) choose the ratios of the magnitudes of the the efficiently produced magnetic distributions so the sensitive plasma properties can be controlled. Using these methods, sets of modular coils are found for the National Compact Stellarator Experiment (NCSX) that are either smoother or can be located much farther from the plasma boundary than those of the present design.

Long-Poe Ku and Allen H. Boozer

2010-11-03T23:59:59.000Z

165

CDF's Higgs sensitivity status  

SciTech Connect

The combined sensitivity of CDF's current Standard Model Higgs boson searches is presented. The expected 95% CL limits on the production cross section times the relevant Higgs boson branching ratios are computed for the W{sup {+-}}H {yields} {ell}{sup {+-}}{nu}b{bar b}, ZH {yields} {nu}{bar {nu}}b{bar b}, gg {yields} H {yields} W{sup +}W{sup -} W{sup {+-}}H {yields} W{sup {+-}}W{sup +}W{sup -} channels as they stand as of the October 2005, using results which were prepared for Summer 2005 conferences and a newer result form the gg {yields} H {yields} W{sup +}W{sup -} channel. Correlated and uncorrelated systematic uncertainties are taken into account, and the luminosity requirements for 95% CL exclusion, 3{sigma} evidence, and 5{sigma} discovery are computed for median experimental outcomes. A list of improvements required to achieve the sensitivity to a SM Higgs boson as quantified in the Higgs Sensitivity Working Group's report is provided.

Junk, Tom; /Illinois U., Urbana

2005-10-01T23:59:59.000Z

166

Measurements of Plasma Potential Distribution in Segmented Electrode Hall Thruster  

DOE Green Energy (OSTI)

Use of a segmented electrode placed at the Hall thruster exit can substantially reduce the voltage potential drop in the fringing magnetic field outside the thruster channel. In this paper, we investigate the dependence of this effect on thruster operating conditions and segmented electrode configuration. A fast movable emissive probe is used to measure plasma potential in a 1 kW laboratory Hall thruster with semented electrodes made of a graphite material. Relatively small probe-induced perturbations of the thruster discharge in the vicinity of the thruster exit allow a reasonable comparison of the measured results for different thruster configurations. It is shown that the plasma potential distribution is almost not sensitive to changes of the electrode potential, but depends on the magnetic field distribution and the electrode placement.

Y. Raitses; D. Staack; N.J. Fisch

2001-10-16T23:59:59.000Z

167

Validation and Comparison of Carbon Sequestration Project Cost Models with Project Cost Data Obtained from the Southwest Partnership  

SciTech Connect

Obtaining formal quotes and engineering conceptual designs for carbon dioxide (CO{sub 2}) sequestration sites and facilities is costly and time-consuming. Frequently, when looking at potential locations, managers, engineers and scientists are confronted with multiple options, but do not have the expertise or the information required to quickly obtain a general estimate of what the costs will be without employing an engineering firm. Several models for carbon compression, transport and/or injection have been published that are designed to aid in determining the cost of sequestration projects. A number of these models are used in this study, including models by J. Ogden, MIT's Carbon Capture and Sequestration Technologies Program Model, the Environmental Protection Agency and others. This report uses the information and data available from several projects either completed, in progress, or conceptualized by the Southwest Regional Carbon Sequestration Partnership on Carbon Sequestration (SWP) to determine the best approach to estimate a project's cost. The data presented highlights calculated versus actual costs. This data is compared to the results obtained by applying several models for each of the individual projects with actual cost. It also offers methods to systematically apply the models to future projects of a similar scale. Last, the cost risks associated with a project of this scope are discussed, along with ways that have been and could be used to mitigate these risks.

Robert Lee; Reid Grigg; Brian McPherson

2011-04-15T23:59:59.000Z

168

Chemical potential and the gap equation  

E-Print Network (OSTI)

In general the kernel of QCD's gap equation possesses a domain of analyticity upon which the equation's solution at nonzero chemical potential is simply obtained from the in-vacuum result through analytic continuation. On this domain the single-quark number- and scalar-density distribution functions are mu-independent. This is illustrated via two models for the gap equation's kernel. The models are alike in concentrating support in the infrared. They differ in the form of the vertex but qualitatively the results are largely insensitive to the Ansatz. In vacuum both models realise chiral symmetry in the Nambu-Goldstone mode and in the chiral limit, with increasing chemical potential, exhibit a first-order chiral symmetry restoring transition at mu~M(0), where M(p^2) is the dressed-quark mass function. There is evidence to suggest that any associated deconfinement transition is coincident and also of first-order.

Huan Chen; Wei Yuan; Lei Chang; Yu-Xin Liu; Thomas Klahn; Craig D. Roberts

2008-07-17T23:59:59.000Z

169

The Connection Between Inertial Forces and the Vector Potential  

E-Print Network (OSTI)

. The inertia property of matter is discussed in terms of a type of induction law related to the extended charged particle's own vector potential. Our approach is based on the Lagrangian formalism of canonical momentum writing Newton's second law in terms of the vector potential and a development in terms of obtaining retarded potentials, that allow an intuitive physical interpretation of its main terms. This framework provides a clear physical insight on the physics of inertia. It is shown that the electron mass has a complete electromagnetic origin and the covariant equation obtained solves the "4/3 mass paradox". This provides a deeper insight into the significance of the main terms of the equation of motion. In particular a force term is obtained from the approach based on the continuity equation for momentum that represents a drag force the charged particle feels when in motion relatively to its own vector potential field lines. Thus, the time derivative of the particle's vector potential leads to the acceleration inertia reaction force and is equivalent to the Schott term responsible for the source of the radiation field. We also show that the velocity dependent term of the particle's vector potential is connected with the relativistic increase of mass with velocity and generates a stress force that is the source of electric field lines deformation. This understanding broadens the possibility to manipulate inertial mass and potentially suggests some mechanisms for possible applications to electromagnetic propulsion and the development of advanced space propulsion physics.

Alexandre A. Martins; Mario J. Pinheiro

2006-11-17T23:59:59.000Z

170

Can I obtain a list of companies involved in the natural gas ...  

U.S. Energy Information Administration (EIA)

Can I obtain a list of companies involved in the natural gas industry, such as utilities, pipeline companies, and storage operators? Yes. EIA collects and publishes a ...

171

Sensitivity of transitions in internal rotor molecules to a possible variation of the proton-to-electron mass ratio  

Science Conference Proceedings (OSTI)

Recently, methanol was identified as a sensitive target system to probe variations of the proton-to-electron mass ratio {mu}[Jansen et al., Phys. Rev. Lett. 106, 100801 (2011)]. The high sensitivity of methanol originates from the interplay between overall rotation and hindered internal rotation of the molecule; that is, transitions that convert internal rotation energy into overall rotation energy, or vice versa, have an enhanced sensitivity coefficient, K{sub {mu}}. As internal rotation is a common phenomenon in polyatomic molecules, it is likely that other molecules display similar or even larger effects. In this paper we generalize the concepts that form the foundation of the high sensitivity in methanol and use this to construct an approximate model which makes it possible to estimate the sensitivities of transitions in internal rotor molecules with C{sub 3v} symmetry, without performing a full calculation of energy levels. We find that a reliable estimate of transition sensitivities can be obtained from the three rotational constants (A, B, and C) and three torsional constants (F, V{sub 3}, and {rho}). This model is verified by comparing obtained sensitivities for methanol, acetaldehyde, acetamide, methyl formate, and acetic acid with a full analysis of the molecular Hamiltonian. Of the molecules considered, methanol is by far the most suitable candidate for laboratory and cosmological tests searching for a possible variation of {mu}.

Jansen, Paul; Ubachs, Wim; Bethlem, Hendrick L. [Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam (Netherlands); Kleiner, Isabelle [Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA), CNRS UMR 7583 et Universites Paris 7 et Paris Est, 61 avenue du General de Gaulle, FR-94010 Creteil Cedex (France); Xu, Li-Hong [Department of Physics and Centre for Laser, Atomic, and Molecular Sciences, University of New Brunswick, Saint John, New Brunswick, Canada E2L 4L5 (Canada)

2011-12-15T23:59:59.000Z

172

UMTRA project disposal cell cover biointrusion sensitivity assessment, Revision 1  

SciTech Connect

This study provides an analysis of potential changes that may take place in a Uranium Mill Tailings Remedial Action (UMTRA) Project disposal cell cover system as a result of plant biointrusion. Potential changes are evaluated by performing a sensitivity analysis of the relative impact of root penetrations on radon flux out of the cell cover and/or water infiltration into the cell cover. Data used in this analysis consist of existing information on vegetation growth on selected cell cover systems and information available from published studies and/or other available project research. Consistent with the scope of this paper, no new site-specific data were collected from UMTRA Project sites. Further, this paper does not focus on the issue of plant transport of radon gas or other contaminants out of the disposal cell cover though it is acknowledged that such transport has the potential to be a significant pathway for contaminants to reach the environment during portions of the design life of a disposal cell where plant growth occurs. Rather, this study was performed to evaluate the effects of physical penetration and soil drying caused by plant roots that have and are expected to continue to grow in UMTRA Project disposal cell covers. An understanding of the biological and related physical processes that take place within the cover systems of the UMTRA Project disposal cells helps the U.S. Department of Energy (DOE) determine if the presence of a plant community on these cells is detrimental, beneficial, or of mixed value in terms of the cover system`s designed function. Results of this investigation provide information relevant to the formulation of a vegetation control policy.

NONE

1995-10-01T23:59:59.000Z

173

Novel hydrophobic ionic liquids electrolyte based on cyclic sulfonium used in dye-sensitized solar cells  

Science Conference Proceedings (OSTI)

A novel series of hydrophobic room temperature ionic liquids based on six cyclic sulfonium cations were first time synthesized and applied in dye-sensitized solar cells as pure solvents for electrolyte system. The chronoamperograms result showed that the length of substituent on sulfonium cations could inhibit the I{sub 3}{sup -} diffusion and the five-ring structure of sulfonium was benefit for fast triiodide ion diffusion. The electrochemical impendence spectra measurement of dye-sensitized solar cells with these ionic liquid electrolytes was carried out and the result indicated that the cations' structure had indeed influence on the cells' performance especially for the fill factor, which was further proved by the measurement result of I-V curves of these dye-sensitized solar cells. The conclusion was obtained that the electron exchange reaction on Pt counter electrode/electrolyte interface dominated the cells' performance for these ionic liquid electrolyte-based DSCs. (author)

Guo, Lei; Pan, Xu; Wang, Meng; Zhang, Changneng; Fang, Xiaqin; Chen, Shuanghong; Dai, Songyuan [Key Lab of Novel Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031 (China)

2011-01-15T23:59:59.000Z

174

Neutrino factories: realization and physics potential  

SciTech Connect

Neutrino Factories offer an exciting option for the long-term neutrino physics program. This new type of neutrino facility will provide beams with unique properties. Low systematic uncertainties at a Neutrino Factory, together with a unique and precisely known neutrino flavor content, will enable neutrino oscillation measurements to be made with unprecedented sensitivity and precision. Over recent years, the resulting neutrino factory physics potential has been discussed extensively in the literature. In addition, over the last six years the R&D necessary to realize a Neutrino Factory has been progressing, and has developed into a significant international activity. It is expected that, within about five more years, the initial phase of this R&D program will be complete and, if the community chooses to build this new type of neutrino source within the following decade, neutrino factory technology will be ready for the final R&D phase prior to construction. In this paper (1) an overview is given of the technical ingredients needed for a Neutrino Factory, (2) beam properties are described, (3) the resulting neutrino oscillation physics potential is summarized, (4) a more detailed description is given for one representative Neutrino Factory design, and (5) the ongoing R&D program is summarized, and future plans briefly described.

Geer, S.; /Fermilab; Zisman, M.S.; /LBL, Berkeley

2006-12-01T23:59:59.000Z

175

The chemistry of minerals obtained from the combustion of Jordanian oil shale  

E-Print Network (OSTI)

The chemistry of minerals obtained from the combustion of Jordanian oil shale Awni Y. Al was performed on the spent oil shale (oil shale ash) obtained from the combustion of Jordanian oil shale process, minimal fragmentation was encountered since Jordanian oil shale contains large proportions of ash

Shawabkeh, Reyad A.

176

Method and apparatus for obtaining enhanced production rate of thermal chemical reactions  

DOE Patents (OSTI)

Reactors and processes are disclosed that can utilize high heat fluxes to obtain fast, steady-state reaction rates. Porous catalysts used in conjunction with microchannel reactors to obtain high rates of heat transfer are also disclosed. Reactors and processes that utilize short contact times, high heat flux and low pressure drop are described. Improved methods of steam reforming are also provided.

Tonkovich, Anna Lee Y. (Pasco, WA); Wang, Yong (Richland, WA); Wegeng, Robert S. (Richland, WA); Gao, Yufei (Kennewick, WA)

2006-05-16T23:59:59.000Z

177

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition  

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

4 Fee Determinations: Requirement to Obtain 4 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Attached is Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input. Questions concerning this policy flash should be directed to Michael Righi of the Contract and Financial Assistance Policy Division, Office of Policy, Office Acquisition and Project Management at (202) 287-1337 or at Michael.Righi@hq.doe.gov. POLICY_FLASH_2013-24 disseminating the Dep Sec's memo of Jan 28 2013 on Fee Determ and AEs.pdf Fee Determinations - Requirement to Obtain Acquisition Executive's Input.pdf More Documents & Publications Policy Flash: 2013-52 Contractor Legal Management Requirements: Final Rule

178

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition  

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

4 Fee Determinations: Requirement to Obtain 4 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Attached is Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input. Questions concerning this policy flash should be directed to Michael Righi of the Contract and Financial Assistance Policy Division, Office of Policy, Office Acquisition and Project Management at (202) 287-1337 or at Michael.Righi@hq.doe.gov. POLICY_FLASH_2013-24 disseminating the Dep Sec's memo of Jan 28 2013 on Fee Determ and AEs.pdf Fee Determinations - Requirement to Obtain Acquisition Executive's Input.pdf More Documents & Publications Policy Flash: 2013-52 Contractor Legal Management Requirements: Final Rule

179

High sensitivity leak detection method and apparatus  

DOE Patents (OSTI)

An improved leak detection method is provided that utilizes the cyclic adsorption and desorption of accumulated helium on a non-porous metallic surface. The method provides reliable leak detection at superfluid helium temperatures. The zero drift that is associated with residual gas analyzers in common leak detectors is virtually eliminated by utilizing a time integration technique. The sensitivity of the apparatus of this disclosure is capable of detecting leaks as small as 1 [times] 10[sup [minus]18] atm cc sec[sup [minus]1]. 2 figs.

Myneni, G.R.

1994-09-06T23:59:59.000Z

180

High sensitivity leak detection method and apparatus  

DOE Patents (OSTI)

An improved leak detection method is provided that utilizes the cyclic adsorption and desorption of accumulated helium on a non-porous metallic surface. The method provides reliable leak detection at superfluid helium temperatures. The zero drift that is associated with residual gas analyzers in common leak detectors is virtually eliminated by utilizing a time integration technique. The sensitivity of the apparatus of this disclosure is capable of detecting leaks as small as 1.times.10.sup.-18 atm cc sec.sup.-1.

Myneni, Ganapatic R. (Grafton, VA)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" from the National Library of EnergyBeta (NLEBeta).
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181

Position Sensitive Detection System for Charged Particles  

Science Conference Proceedings (OSTI)

The position sensitive detection system presented in this work employs the Anger logic algorithm to determine the position of the light spark produced by the passage of charged particles on a 170 x 170 x 10 mm3 scintillator material (PILOT-U). The detection system consists of a matrix of nine photomultipliers, covering a fraction of the back area of the scintillators. Tests made with a non-collimated alpha particle source together with a Monte Carlo simulation that reproduces the data, suggest an intrinsic position resolution of up to 6 mm is achieved.

Coello, E. A. [Instituto de Fisica, Univ. Nacional Autonoma de Mexico; Favela, F. [Instituto de Fisica, Univ. Nacional Autonoma de Mexico; Curiel, Q. [Instituto de Fisica, Univ. Nacional Autonoma de Mexico; Chavez, E [Instituto de Fisica, Univ. Nacional Autonoma de Mexico; Huerta, A. [Instituto de Fisica, Univ. Nacional Autonoma de Mexico; Varela, A. [Instituto Nacional de Investigaciones Nucleares, Ocoyoacac, Mexico; Shapira, Dan [ORNL

2012-01-01T23:59:59.000Z

182

Potential Vorticity Diagnosis of the Severe Convective Regime. Part IV: Comparison with Modeling Simulations of the Moore Tornado Outbreak  

Science Conference Proceedings (OSTI)

A potential vorticity (PV) diagnostic framework is used to explore the sensitivity of the 3 May 1999 Oklahoma City tornado outbreak to the strength of a particular PV anomaly proximate to the geographical region experiencing the tornado outbreak. ...

David A. Gold; John W. Nielsen-Gammon

2008-05-01T23:59:59.000Z

183

On the QCD phase diagram at finite chemical potential  

SciTech Connect

We present results for the phase diagram of QCD with two massless quark flavours as obtained from a first-principles functional renormalisation group approach. In particular we compute order parameters for chiral symmetry breaking and quark confinement at vanishing and non-zero imaginary chemical potential. Our analytical and numerical results suggest a close relation between the chiral and the deconfinement phase transition. We discuss the properties of dual order parameters at imaginary and real chemical potential.

Haas, Lisa M.; Pawlowski, Jan M. [Institut fuer Theoretische Physik, Universitaet Heidelberg, Philosophenweg 16, 69120 Heidelberg (Germany); ExtreMe Matter Institute EMMI, GSI, Planckstr. 1, 64291 Darmstadt (Germany); Braun, Jens [Theoretisch-Physikalisches Institut, Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany)

2011-05-23T23:59:59.000Z

184

Evaluation of Embedded Solutions for Decreasing Sensitivity of End-Use Equipment to Power Quality Variations  

Science Conference Proceedings (OSTI)

This document provides a conceptual overview of embedded solutions for sensitivity to power quality variations, assesses its benefits, and describes its potential in four end-use equipment categories. The report focuses on the technical and market issues associated with equipment modification provided by original equipment manufacturers (OEMs) to improve equipment tolerance to various power quality phenomena. The report describes approaches and technologies for improving performance, discusses specific i...

1999-12-14T23:59:59.000Z

185

Higgs boson coupling sensitivity at the LHC using H->tau tau decays  

E-Print Network (OSTI)

We investigate the potential for measuring the relative couplings of a low-mass Higgs boson at the Large Hadron Collider using WH, ZH, and ttbarH production, where the Higgs boson decays to tau-lepton pairs. With 100/fb of sqrt(s) = 14 TeV pp collision data we find that these modes can improve sensitivity to coupling-ratio measurements of a Higgs boson with a mass of about 125 GeV/c^2.

Boddy, Christopher; Hays, Christopher

2012-01-01T23:59:59.000Z

186

Uniform DT 3T burn: computations and sensitivities  

Science Conference Proceedings (OSTI)

A numerical model was developed in C to integrate the nonlinear deutrium-tritium (DT) burn equations in a three temperature (3T) approximation for spatially uniform test problems relevant to Inertial Confinement Fusion (ICF). Base model results are in excellent agreement with standard 3T results. Data from NDI, SESAME, and TOPS databases is extracted to create fits for the reaction rate parameter, the Planck opacity, and the coupling frequencies of the plasma temperatures. The impact of different fits (e.g., TOPS versus SESAME opacity data, higher order polynomial fits ofNDI data for the reaction rate parameter) were explored, and sensitivity to several model inputs are presented including: opacity data base, Coulomb logarithm, and Bremsstrahlung. Sensitivity to numerical integration time step size, and the relative insensitivity to the discretized numerics and numerical integration method was demonstrated. Variations in the IC for densities and temperatures were explored, showing similar DT burn profiles in most cases once ignition occurs. A coefficient multiplying the Compton coupling term (default, A = 1) can be adjusted to approximate results from more sophisticated models. The coefficient was reset (A = 0.4) to match the maximum temperatures resulting from standard multi-group simulations of the base case test problem. Setting the coefficient to a larger value, (A = 0.6) matches maximum ion temperatures in a kinetic simulation of a high density ICF-like regime. Matching peak temperatures does not match entire temperature-time profiles, indicating the Compton coefficient is density and time dependent as the photon distribution evolves. In the early time burn during the ignition of the DT, the present model with modified Compton coupling provides a very simple method to obtain a much improved match to the more accurate solution from the multi-group radiation model for these DT burn regimes.

Vold, Erik [Los Alamos National Laboratory; Hryniw, Natalia [Los Alamos National Laboratory; Hansen, Jon A [Los Alamos National Laboratory; Kesler, Leigh A [Los Alamos National Laboratory; Li, Frank [Los Alamos National Laboratory

2011-01-27T23:59:59.000Z

187

High speed curved position sensitive detector  

DOE Patents (OSTI)

A high speed curved position sensitive porportional counter detector for use in x-ray diffraction, the detection of 5-20 keV photons and the like. The detector employs a planar anode assembly of a plurality of parallel metallic wires. This anode assembly is supported between two cathode planes, with at least one of these cathode planes having a serpentine resistive path in the form of a meander having legs generally perpendicular to the anode wires. This meander is produced by special microelectronic fabrication techniques whereby the meander "wire" fans outwardly at the cathode ends to produce the curved aspect of the detector, and the legs of the meander are small in cross-section and very closely spaced whereby a spatial resolution of about 50 .mu.m can be achieved. All of the other performance characteristics are about as good or better than conventional position sensitive proportional counter type detectors. Count rates of up to 40,000 counts per second with 0.5 .mu.s shaping time constants are achieved.

Hendricks, Robert W. (Montgomery County, VA); Wilson, Jack W. (Knox County, TN)

1989-01-01T23:59:59.000Z

188

General inflaton potentials in supergravity  

E-Print Network (OSTI)

We describe a way to construct supergravity models with an arbitrary inflaton potential V ({\\phi}) and show that all other scalar fields in this class of models can be stabilized at the inflationary trajectory by a proper choice of the K\\"ahler potential.

Renata Kallosh; Andrei Linde; Tomas Rube

2010-11-27T23:59:59.000Z

189

General inflaton potentials in supergravity  

E-Print Network (OSTI)

We describe a way to construct supergravity models with an arbitrary inflaton potential V ({\\phi}) and show that all other scalar fields in this class of models can be stabilized at the inflationary trajectory by a proper choice of the K\\"ahler potential.

Kallosh, Renata; Rube, Tomas

2010-01-01T23:59:59.000Z

190

Low flammability cap-sensitive flexible explosive composition  

DOE Patents (OSTI)

A cap-sensitive flexible explosive composition of reduced flammability is provided by incorporating a finely divided, cap-sensitive explosive in a flame resistant polymeric binder system which contains a compatible flame retardant material.

Wagner, Martin G. (Wilmington, DE)

1992-01-14T23:59:59.000Z

191

The Sensitivity to Parametric Variation in Direct Minimization Techniques  

Science Conference Proceedings (OSTI)

Solutions of some objective analysis techniques are known to depend upon the subjective values of internal parameters. The change in the solution per change in the parameter is the sensitivity. Parameters with low sensitivity can be varied with ...

S. D. Meyers; C. Stephens Jones; D. M. Legler; K. F. Miles; J. J. O'Brien

1994-07-01T23:59:59.000Z

192

T-723:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information,  

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

3:Adobe Flash Player Multiple Bugs Let Remote Users Obtain 3:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code T-723:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code September 22, 2011 - 8:00am Addthis PROBLEM: Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code. PLATFORM: Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris. Adobe Flash Player 10.3.186.6 and earlier versions for Android. ABSTRACT: An attacker can exploit this issue by enticing an unsuspecting victim into visiting a malicious website. reference LINKS: Adobe Security Bulletin

193

T-652: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and Execute  

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

2: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and 2: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and Execute Arbitrary Code T-652: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and Execute Arbitrary Code June 22, 2011 - 2:55pm Addthis PROBLEM: Multiple vulnerabilities were reported in Mozilla Thunderbird. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can obtain cookies from another domain in certain cases. A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system [CVE-2011-2364, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376]. The code will run with the privileges of the target user. PLATFORM: Mozilla Thunderbird prior to 3.1.11

194

A Method for Data Processing to Obtain High-Quality XCTD Data  

Science Conference Proceedings (OSTI)

A data processing method to obtain high-quality data from an expendable conductivity–temperature–depth (XCTD) profiler is proposed. By adjusting the mismatch of the response time of the temperature and conductivity sensors, systematic error (on ...

Hiroshi Uchida; Koji Shimada; Takeshi Kawano

2011-06-01T23:59:59.000Z

195

A New Approach for Obtaining Advection Profiles: Application to the SHEBA Column  

Science Conference Proceedings (OSTI)

Time-averaged vertically integrated 3D advections are inferred from heat and moisture budgets obtained from observations at the Surface Heat Budget of the Arctic Ocean (SHEBA) field experiment for April, May, June, and July. Advection was a ...

H. Morrison; J. O. Pinto

2004-03-01T23:59:59.000Z

196

Combining Inverted Echo Sounder and Horizontal Electric Field Recorder Measurements to Obtain Absolute Velocity Profiles  

Science Conference Proceedings (OSTI)

Profiles of absolute velocity are difficult to obtain in the ocean, especially over long periods of time at the same location. This paper presents a method of estimating full water column absolute horizontal velocity profiles as a function of ...

Christopher S. Meinen; Douglas S. Luther; D. Randolph Watts; Karen L. Tracey; Alan D. Chave; James Richman

2002-10-01T23:59:59.000Z

197

A Comparison of Vertical Velocity in Cirrus Obtained from Aircraft and Lidar Divergence Measurements during FIRE  

Science Conference Proceedings (OSTI)

Techniques are presented to obtain vertical velocity in cirrus clouds from in situ aircraft lateral wind measurements and from ground-based remote Doppler lidar measurements. In general, direct measurements of absolute vertical velocity w from ...

I. Gultepe; A. J. Heymsfield; D. H. Lenschow

1990-02-01T23:59:59.000Z

198

Difficulties in Obtaining Reliable Temperature Trends: Reconciling the Surface and Satellite Microwave Sounding Unit Records  

Science Conference Proceedings (OSTI)

A chronic difficulty in obtaining reliable climate records from satellites has been changes in instruments, platforms, equator-crossing times, and algorithms. The microwave sounding unit (MSU) tropospheric temperature record has overcome some of ...

James W. Hurrell; Kevin E. Trenberth

1998-05-01T23:59:59.000Z

199

AUTHORIZATION TO OBTAIN DRIVING RECORDS FROM THE DEPARTMENT OF MOTOR VEHICLES  

E-Print Network (OSTI)

AUTHORIZATION TO OBTAIN DRIVING RECORDS FROM THE DEPARTMENT OF MOTOR VEHICLES (INF 254) Section necessary driver and motor vehicle record data to support this status check. X (Employee Signature) (Date

de Lijser, Peter

200

Adaptive noise cancellation schemes for magnetic flux leakage signals obtained from gas pipeline inspection  

Science Conference Proceedings (OSTI)

Nondestructive evaluation of the gas pipeline system is most commonly performed using magnetic flux leakage (MFL) techniques. A major segment of this network employs seamless pipes. The data obtained From MFL inspection of seamless pipes is contaminated ...

M. Afzal; R. Polikar; L. Udpa; S. Udpa

2001-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Ion Funnel and Related Technology for Improved Sensitivity ...  

Search PNNL. PNNL Home; About; Research; Publications; Jobs; News; Contacts; Ion Funnel and Related Technology for Improved Sensitivity in Mass ...

202

Potential  

E-Print Network (OSTI)

colonization of newly available tree-species habitat under climate change: an analysis for five eastern US species

Louis R. Iverson; M. W. Schwartz; Anantha M. Prasad

2004-01-01T23:59:59.000Z

203

Audit Report on "Protection of the Department of Energy's Unclassified Sensitive Electronic Information"  

Science Conference Proceedings (OSTI)

The Department of Energy and its contractors store and process massive quantities of sensitive information to accomplish national security, energy, science, and environmental missions. Sensitive unclassified data, such as personally identifiable information (PII), official use only, and unclassified controlled nuclear information require special handling and protection to prevent misuse of the information for inappropriate purposes. Industry experts have reported that more than 203 million personal privacy records have been lost or stolen over the past three years, including information maintained by corporations, educational institutions, and Federal agencies. The loss of personal and other sensitive information can result in substantial financial harm, embarrassment, and inconvenience to individuals and organizations. Therefore, strong protective measures, including data encryption, help protect against the unauthorized disclosure of sensitive information. Prior reports involving the loss of sensitive information have highlighted weaknesses in the Department's ability to protect sensitive data. Our report on Security Over Personally Identifiable Information (DOE/IG-0771, July 2007) disclosed that the Department had not fully implemented all measures recommended by the Office of Management and Budget (OMB) and required by the National Institute of Standards and Technology (NIST) to protect PII, including failures to identify and encrypt PII maintained on information systems. Similarly, the Government Accountability Office recently reported that the Department had not yet installed encryption technology to protect sensitive data on the vast majority of laptop computers and handheld devices. Because of the potential for harm, we initiated this audit to determine whether the Department and its contractors adequately safeguarded sensitive electronic information. The Department had taken a number of steps to improve protection of PII. Our review, however, identified opportunities to strengthen the protection of all types of sensitive unclassified electronic information and reduce the risk that such data could fall into the hands of individuals with malicious intent. In particular, for the seven sites we reviewed: (1) Four sites had either not ensured that sensitive information maintained on mobile devices was encrypted. Or, they had improperly permitted sensitive unclassified information to be transmitted unencrypted through email or to offsite backup storage facilities; (2) One site had not ensured that laptops taken on foreign travel, including travel to sensitive countries, were protected against security threats; and, (3) Although required by the OMB since 2003, we learned that programs and sites were still working to complete Privacy Impact Assessments - analyses designed to examine the risks and ramifications of using information systems to collect, maintain, and disseminate personal information. Our testing revealed that the weaknesses identified were attributable, at least in part, to Headquarters programs and field sites that had not implemented existing policies and procedures requiring protection of sensitive electronic information. In addition, a lack of performance monitoring contributed to the inability of the Department and the National Nuclear Security Administration (NNSA) to ensure that measures were in place to fully protect sensitive information. As demonstrated by previous computer intrusion-related data losses throughout the Department, without improvements, the risk or vulnerability for future losses remains unacceptably high. In conducting this audit, we recognized that data encryption and related techniques do not provide absolute assurance that sensitive data is fully protected. For example, encryption will not necessarily protect data in circumstances where organizational access controls are weak or are circumvented through phishing or other malicious techniques. However, as noted by NIST, when used appropriately, encryption is an effective tool that can, as part of an overall risk-management strat

None

2009-08-01T23:59:59.000Z

204

Shock initiation sensitivity of PETN: A steric hindrance model  

Science Conference Proceedings (OSTI)

In this report, shock initiation sensitivity of PETN crystals is discussed. A new molecular model for shock sensitivity in crystalline solids is proposed in terms of steric hindrance to edge dislocation motion. This model is successful in predicting the relative shock sensitivities of the four PETN orientations studied, especially at low stresses. (JL)

Dick, J.J.

1991-01-01T23:59:59.000Z

205

Two-dimensional position sensitive radiation detectors  

DOE Patents (OSTI)

Nuclear reaction detectors capable of position sensitivity with submillimeter resolution in two dimensions are each provided by placing arrays of scintillation or wavelength shifting optical fibers formed of a plurality of such optical fibers in a side-by-side relationship in X and Y directions with a layer of nuclear reactive material operatively associated with surface regions of the optical fiber arrays. Each nuclear reaction occurring in the layer of nuclear reactive material produces energetic particles for simultaneously providing a light pulse in a single optical fiber in the X oriented array and in a single optical fiber in the Y oriented array. These pulses of light are transmitted to a signal producing circuit for providing signals indicative of the X-Y coordinates of each nuclear event. 6 figures.

Mihalczo, J.T.

1994-02-22T23:59:59.000Z

206

Optical Design of a Red Sensitive Spectrograph  

E-Print Network (OSTI)

We present a preliminary design for a red-sensitive spectrograph. The spectrograph is optimized to operate over the 600-1000nm spectral range at a resolution of ~2000 and is designed specifically for the 2.7-m Harlan J. Smith Telescope at McDonald Observatory. The design is compact and cost effective and should have very high throughput. The principles of the design can be extended to other purposes, such as a unit spectrograph for the DESpec project or other projects that require good performance in the red. In this paper, we will discuss the selection of components as well as the choice of optical layouts and the theoretical throughput of the instrument.

Martin, Emily 1988-

2012-05-01T23:59:59.000Z

207

Posters Sensitivity of Cirrus Cloud Radiative  

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

7 7 Posters Sensitivity of Cirrus Cloud Radiative Properties to Ice Crystal Size and Shape in General Circulation Model Simulations D. L. Mitchell Desert Research Institute Reno, Nevada J. E. Kristjánsson Department of Geophysics University of Oslo, Norway M. J. Newman Los Alamos National Laboratory Los Alamos, New Mexico Introduction Recent research (e.g., Mitchell and Arnott 1994) has shown that the radiative properties of cirrus clouds (i.e., optical depth, albedo, emissivity) depend on the shapes and sizes of ice crystals. For instance, the cloud albedo may vary by a factor of two, depending on whether hexagonal columns or bullet rosette ice crystals are assumed for a given ice water path (IWP). This variance occurs primarily because, at sizes characteristic of cirrus

208

Parameter sensitivity analysis of crop growth models based on the extended Fourier Amplitude Sensitivity Test method  

Science Conference Proceedings (OSTI)

Sensitivity analysis (SA) has become a basic tool for the understanding, application and development of models. However, in the past, little attention has been paid to the effects of the parameter sample size and parameter variation range on the parameter ... Keywords: Extended FAST, Multivariable output, Parameter variation range, Sample size, Time-dependent properties, WOFOST crop growth models

Jing Wang, Xin Li, Ling Lu, Feng Fang

2013-10-01T23:59:59.000Z

209

A new local concept of chemical potential and chemical hardness  

E-Print Network (OSTI)

The definition of local hardness by the derivative of the chemical potential with respect to the electron density has raised several questions, and its applicability as the local counterpart of chemical hardness has proved to be limited to (globally) hard molecules. Here, we propose that instead of defining a local hardness from the chemical potential in the above way, first a local chemical potential should be defined from the ground-state energy by its derivative with respect to the electron density, from which then the corresponding local hardness can be gained just as the hardness is obtained from the chemical potential - namely, by a simple differentiation with respect to the electron number. In this way, one does not neglect potentially important terms in the local hardness expression.

Gal, Tamas

2011-01-01T23:59:59.000Z

210

Self Potential | Open Energy Information  

Open Energy Info (EERE)

Self Potential Self Potential Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Self Potential Details Activities (20) Areas (20) Regions (4) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Techniques Information Provided by Technique Lithology: SP technique originally applied to locating sulfide ore-bodies. Stratigraphic/Structural: Detection and tracing of faults. Hydrological: Determination of fluid flow patterns: electrochemical coupling processes due to variations in ionic concentrations, and electrokinetic coupling processes due to fluid flow in the subsurface. Thermal: Location of near-surface thermal anomalies: thermoelectric coupling processes due to variations in temperature in the subsurface.

211

Available Potential Energy: A Clarification  

Science Conference Proceedings (OSTI)

In order to clarify some inconsistencies in the literature, on ocean energetics, the evaluation of the available potential energy (APE) is reconsidered. Attention is focused on the baroclinic APE under conditions in which the hydrostatic ...

R. O. Reid; B. A. Elliott; D. B. Olson

1981-01-01T23:59:59.000Z

212

Potential Vorticity Diagnostics of Cyclogenesis  

Science Conference Proceedings (OSTI)

The assumption of dynamically balanced flow allows one to completely encase the dynamics of extratropical cyclones in a potential vorticity (PV) framework. This approach offers a conceptually simple interpretation of dynamics because PV is a ...

Christopher A. Davis; Kerry A. Emanuel

1991-08-01T23:59:59.000Z

213

Spontaneous potential | Open Energy Information  

Open Energy Info (EERE)

search OpenEI Reference LibraryAdd to library Book Section: Spontaneous potential Author NA Published NA, The date "NA" was not understood.The date "NA" was not understood....

214

On the Polyharmonic Operator with a Periodic Potential  

E-Print Network (OSTI)

In this paper we obtain the asymptotic formulas of arbitrary order for the Bloch eigenvalues and Bloch functions of the multidimensional polyharmonic operator with periodic, with respect to arbitrary lattice, potential. Then we prove that the number of gaps in the spectrum of the operator is finite. In particular, we get the proof of the Bethe -Sommerfeld conjecture for arbitrary dimension and arbitrary lattice.

O. A. Veliev

2005-12-05T23:59:59.000Z

215

Scattering of Woods-Saxon Potential in Schrodinger Equation  

E-Print Network (OSTI)

The scattering solutions of the one-dimensional Schrodinger equation for the Woods-Saxon potential are obtained within the position-dependent mass formalism. The wave functions, transmission and reflection coefficients are calculated in terms of Heun's function. These results are also studied for the constant mass case in detail.

Altug Arda; Oktay Aydogdu; Ramazan Sever

2010-09-27T23:59:59.000Z

216

Solar Energy Potential | Department of Energy  

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

Centers Field Sites Power Marketing Administration Other Agencies You are here Home Solar Energy Potential Solar Energy Potential Solar Energy Potential Addthis Browse By...

217

Solar Energy Potential | Department of Energy  

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

Energy Potential Solar Energy Potential Solar Energy Potential Addthis Browse By Topic TOPICS Energy Efficiency ---Home Energy Audits --Design & Remodeling -Vehicles --Alternative...

218

The earth's absolute gravitation potential function in the prospect 'gravitational potential metering' of geological objects and earthquake centers  

E-Print Network (OSTI)

The direct problem of the detection of the Earth's absolute gravitation potential maximum value (MGP) was solved. The inverse problem finding of the Earth maximum gravitation (where there is a maximum of gravitation field intensity and a potential function has a 'bending point') with the help of MGP was solved as well. The obtained results show that the revealed Earth maximum gravitation coincides quite strictly with the cseismic D" layer on the border of the inner and outer (liquid) core. The validity of the method of an absolute gravitation potential detection by the equal- potential velocity was proved as 'gravitation potential measurement' or 'Vs-gravity method'. The prospects of this method for detecting of low-power or distant geological objects with abnormal density and the possible earthquakes with low density was shown.

Aleksandr Fridrikson; Marina Kasatochkina

2009-04-08T23:59:59.000Z

219

Market potential for electrolytic hydrogen  

SciTech Connect

By the year 2000, the potential market for advanced-technology electrolytic hydrogen among specialty users is projected to be about half of what the merchant hydrogen market would be in the absence of electrolytic hydrogen. This potential market, representing an annual demand of about 16 billion SCF of hydrogen, will develop from market penetrations of electrolyzers assumed to begin in the early 1980s. 6 refs.

Fein, E.

1981-01-01T23:59:59.000Z

220

Economic potential of inertial fusion  

SciTech Connect

Beyond the achievement of scientific feasibility, the key question for fusion energy is: does it have the economic potential to be significantly cheaper than fission and coal energy. If fusion has this high economic potential then there are compelling commercial and geopolitical incentives to accelerate the pace of the fusion program in the near term, and to install a global fusion energy system in the long term. Without this high economic potential, fusion's success depends on the failure of all alternatives, and there is no real incentive to accelerate the program. If my conjectures on the economic potential of inertial fusion are approximately correct, then inertial fusion energy's ultimate costs may be only half to two-thirds those of advanced fission and coal energy systems. Relative cost escalation is not assumed and could increase this advantage. Both magnetic and inertial approaches to fusion potentially have a two-fold economic advantage which derives from two fundamental properties: negligible fuel costs and high quality energy which makes possible more efficient generation of electricity. The wining approach to fusion may excel in three areas: electrical generating efficiency, minimum material costs, and adaptability to manufacture in automated factories. The winning approach must also rate highly in environmental potential, safety, availability factor, lifetime, small 0 and M costs, and no possibility of utility-disabling accidents.

Nuckolls, J.H.

1984-04-01T23:59:59.000Z

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


221

How to Obtain Authorization to Import and/or Export Natural Gas and LNG |  

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

How to Obtain Authorization How to Obtain Authorization to Import and/or Export Natural Gas and LNG How to Obtain Authorization to Import and/or Export Natural Gas and LNG LNG Exports | Long Terms | Blanket Authorizations | Vacate | Name Change | Contents of Application | FTA and non-FTA Countries Background Section 3 of the Natural Gas Act (NGA) (15 U.S.C. § 717b) prohibits the import or export of natural gas, including liquefied natural gas (LNG) from or to a foreign country without prior approval from the Department of Energy (DOE). Parties who want to enter into natural gas transactions with foreign sellers and buyers must file for an import and/or export authorization under the rules and procedures found in (10 CFR Part 590) of DOE's regulations. Procedures for Filing an Application

222

NETL: Releases & Briefs - NETL Scientists Obtain In Situ Spectrum of  

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

NETL Scientists Obtain In Situ Spectrum of Synthetic Methane Hydrate Sample NETL Scientists Obtain In Situ Spectrum of Synthetic Methane Hydrate Sample The National Energy Technology Laboratory's Methane Hydrate Research Team is investigating the physical properties of methane hydrates, including their use as a storage medium for natural gas. The Team has developed a method of obtaining Raman spectra of bulk, laboratory-prepared hydrate samples under the conditions of their synthesis. This unusual capability allows collection of vibrational spectroscopic data on samples unperturbed by changes in pressure and temperature, allowing new insights into hydrate structure, composition, and stability. This technique will be used to further provide important information about the hydrate, such as the presence of other cage types and the fraction of cages containing methane.

223

V-063: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain  

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

3: Adobe ColdFusion Bugs Let Remote Users Gain Access and 3: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information V-063: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information January 7, 2013 - 1:00am Addthis PROBLEM: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information PLATFORM: ColdFusion 10, 9.0.2, 9.0.1 and 9.0 for Windows, Macintosh and UNIX ABSTRACT: Adobe has identified three vulnerabilities affecting ColdFusion for Windows, Macintosh and UNIX REFERENCE LINKS: Adobe Security Bulletin APSA13-01 SecurityTracker Alert ID: 1027938 CVE-2013-0625 CVE-2013-0629 CVE-2013-0631 IMPACT ASSESSMENT: High DISCUSSION: A remote user can bypass authentication and take control of the target system [CVE-2013-0625]. Systems with password protection disabled or with no password set are affected.

224

Systematic Flights Obtain Long-Term Data Set of Cloud Properties  

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

Systematic Flights Obtain Long-Term Data Set of Cloud Properties Systematic Flights Obtain Long-Term Data Set of Cloud Properties Beginning in January 2009, the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility is sponsoring the first-of-its-kind long-term airborne research campaign to obtain data from low-level clouds above its Southern Great Plains (SGP) site. The five-month campaign is centered near Lamont, Oklahoma, a mid-latitude region that experiences a wide range of cloud types, including the "thin" clouds that are the focus of the campaign. Thin clouds contain so little water that the sun can be seen through them. Scientists refer to such clouds as "clouds with low-optical water depth," or CLOWD. Because these clouds are often tenuous and scattered, even some of the best

225

Use of Noncompetitive Procurements to Obtain Services at the Savannah River Site, IG-0862  

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

Use of Noncompetitive Use of Noncompetitive Procurements to Obtain Services at the Savannah River Site DOE/IG-0862 April 2012 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 April 10, 2012 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Inspector General SUBJECT: INFORMATION: Audit Report on "Use of Noncompetitive Procurements to Obtain Services at the Savannah River Site" INTRODUCTION AND OBJECTIVE Savannah River Nuclear Solutions, LLC (SRNS), assumed management and operating responsibility for the Department of Energy's Savannah River Site located near Aiken, South Carolina, in August 2008. Under its contract, SRNS is responsible for environmental cleanup,

226

Quantitative Nanostructure Characterization Using Atomic Pair Distribution Functions Obtained From Laboratory Electron Microscopes  

Science Conference Proceedings (OSTI)

Quantitatively reliable atomic pair distribution functions (PDFs) have been obtained from nanomaterials in a straightforward way from a standard laboratory transmission electron microscope (TEM). The approach looks very promising for making electron derived PDFs (ePDFs) a routine step in the characterization of nanomaterials because of the ubiquity of such TEMs in chemistry and materials laboratories. No special attachments such as energy filters were required on the microscope. The methodology for obtaining the ePDFs is described as well as some opportunities and limitations of the method.

Abeykoon M.; Billinge S.; Malliakas, C.D.; Juhas, P.; Bozin, E.S.; Kanatzidis, M.G.

2012-05-01T23:59:59.000Z

227

Process For Cutting Polymers Electrolyte Multi-Layer Batteries And Batteries Obtained Thereby  

SciTech Connect

A stacking of battery laminate is prepared, each battery consisting of anode, polymer electrolyte, cathode films and possibly an insulating film, under conditions suitable to constitute a rigid monoblock assembly, in which the films are unitary with one another. The assembly obtained is thereafter cut in predetermined shape by using a mechanical device without macroscopic deformation of the films constituting the assembly and without inducing permanent short circuits. The battery which is obtained after cutting includes at least one end which appears as a uniform cut, the various films constituting the assembly having undergone no macroscopic deformation, the edges of the films of the anode including an electronically insulating passivation film.

Gauthier, Michel (La Prairie, CA); Lessard, Ginette (Longueuil, CA); Dussault, Gaston (St-Benoit-de-Mirabel, CA); Rouillard, Roger (Beloeil, CA); Simoneau, Martin (Montreal, CA); Miller, Alan Paul (Woodbury, MN)

2003-09-09T23:59:59.000Z

228

Chest radiographs obtained with shaped filters: evaluation by observer performance tests  

SciTech Connect

The effectiveness of a shaped filter in improving nodule and infiltrate detection was measured by observer performance testing. Seven observers read 152 test radiographs of the chest obtained from human volunteers. Half the test radiographs had target image observer performance in detecting nodule or infiltrate images was compared with the shaped-filter system and with a conventional chest imaging system. The results were analyzed using receiver operating characteristic (ROC) techniques and indicate that the filter technique was not significantly different from the conventional technique in infiltrate depiction. Observer performance in detecting nodules was slightly worse on images obtained with the shaped-filter system.

Kelsey, C.A.; Lane, R.G.; Moseley, R.D.; Mettler, F.A.; Rosenberg, R.D.; Williams, A.G.; Garcia, J.F.; Feldman, B.S.; Boardman, R.E.

1986-06-01T23:59:59.000Z

229

Evaluation of the Gas Production Potential of Marine HydrateDeposits in the Ulleung Basin of the Korean East Sea  

Science Conference Proceedings (OSTI)

Although significant hydrate deposits are known to exist in the Ulleung Basin of the Korean East Sea, their survey and evaluation as a possible energy resource has not yet been completed. However, it is possible to develop preliminary estimates of their production potential based on the limited data that are currently available. These include the elevation and thickness of the Hydrate-Bearing Layer (HBL), the water depth, and the water temperature at the sea floor. Based on this information, we developed estimates of the local geothermal gradient that bracket its true value. Reasonable estimates of the initial pressure distribution in the HBL can be obtained because it follows closely the hydrostatic. Other critical information needs include the hydrate saturation, and the intrinsic permeabilities of the system formations. These are treated as variables, and sensitivity analysis provides an estimate of their effect on production. Based on the geology of similar deposits, it is unlikely that Ulleung Basin accumulations belong to Class 1 (involving a HBL underlain by a mobile gas zone). If Class 4 (disperse, low saturation accumulations) deposits are involved, they are not likely to have production potential. The most likely scenarios include Class 2 (HBL underlain by a zone of mobile water) or Class 3 (involving only an HBL) accumulations. Assuming nearly impermeable confining boundaries, this numerical study indicates that large production rates (several MMSCFD) are attainable from both Class 2 and Class 3 deposits using conventional technology. The sensitivity analysis demonstrates the dependence of production on the well design, the production rate, the intrinsic permeability of the HBL, the initial pressure, temperature and hydrate saturation, as well as on the thickness of the water zone (Class 2). The study also demonstrates that the presence of confining boundaries is indispensable for the commercially viable production of gas from these deposits.

Moridis, George J.; Reagan, Matthew T.; Kim, Se-Joon; Seol,Yongkoo; Zhang, Keni

2007-11-16T23:59:59.000Z

230

A different approach to obtain Mayer's extension to stationary single particle Wigner distribution  

Science Conference Proceedings (OSTI)

It is shown that the stationary collisionless single-particle Wigner equation in one dimension containing quantum corrections at the lowest order is satisfied by a distribution function that is similar in form to the Maxwellian distribution with an effective mass and a generalized potential. The distribution is used to study quantum corrections to electron hole solutions.

Bose, Anirban [Serampore College, Serampore, Hooghly, West Bengal (India); Janaki, M. S. [Saha Institute of Nuclear Physics, I/AF Bidhannagar, Kolkata 700 064, West Bengal (India)

2012-07-15T23:59:59.000Z

231

Sensitizers containing donor cascade and rhodanine-3-acetic acid moieties for dye-sensitized solar cells  

SciTech Connect

Three organic dyes with D-{pi}-D-{pi}-A structure based on triarylamine, dimethylarylamine, and rhodanine-3-acetic acid moieties are designed and synthesized. Incorporating thiophene moieties into the system affords sensitizers with high molar extinction coefficients. These dyes were applied into nanocrystalline TiO{sub 2} dye-sensitized solar cells through standard operations. For a typical device the maximal monochromatic incident photon-to-current conversion efficiency (IPCE) can reach 73%, with a short-circuit photocurrent density (J{sub sc}) of 7.3 mA/cm{sup 2}, an open-circuit voltage (V{sub oc}) of 636 mV, and a fill factor (ff) of 0.61, corresponding to an overall conversion efficiency ({eta}) of 2.86%. (author)

Wu, Quan-Ping [Department of Thermal and Power Engineering, Tianjin University of Technology, Tianjin 300384 (China); Zhang, Lu; Liang, Mao; Sun, Zhe; Xue, Song [Department of Applied Chemistry, Tianjin University of Technology, Tianjin 300384 (China)

2011-01-15T23:59:59.000Z

232

Development of Screenable Pressure Sensitive Adhesives  

Science Conference Proceedings (OSTI)

An industrial research area of high activity in recent years has been the development of pressure sensitive adhesive (PSA) products that do not interfere with the processing of post-consumer waste. The problem of PSA contamination is arguably the most important technical challenge in expanding the use of recycled fiber. The presence of PSAs in recovered paper creates problems that reduce the efficiency of recycling and papermaking operations and diminish product quality. The widespread use of PSAs engineered to avoid these problems, often referred to as environmentally benign PSAs, could greatly increase the commercial viability of utilizing secondary fiber. Much of the research efforts in this area have focused on the development of PSAs that are designed for enhanced removal with cleaning equipment currently utilized by recycling plants. Most removal occurs at the pressure screens with the size and shape of residual contaminants in the process being the primary criteria for their separation. A viable approach for developing environmentally benign PSAs is their reformulation to inhibit fragmentation. The reduction of adhesives to small particles occurs almost exclusively during repulping; a process in which water and mechanical energy are used to swell and reduce paper products to their constituent fiber. Engineering PSA products to promote the formation of larger adhesive particles during repulping will greatly enhance their removal and reduce or eliminate their impact on the recycling process.

Steven J. Severtson

2003-11-29T23:59:59.000Z

233

A numerical sensitivity analysis of streamline simulation  

E-Print Network (OSTI)

Nowadays, field development strategy has become increasingly dependent on the results of reservoir simulation models. Reservoir studies demand fast and efficient results to make investment decisions that require a reasonable trade off between accuracy and simulation time. One of the suitable options to fulfill this requirement is streamline reservoir simulation technology, which has become very popular in the last few years. Streamline (SL) simulation provides an attractive alternative to conventional reservoir simulation because SL offers high computational efficiency and minimizes numerical diffusion and grid orientation effects. However, streamline methods have weaknesses incorporating complex physical processes and can also suffer numerical accuracy problems. The main objective of this research is to evaluate the numerical accuracy of the latest SL technology, and examine the influence of different factors that may impact the solution of SL simulation models. An extensive number of numerical experiments based on sensitivity analysis were performed to determine the effects of various influential elements on the stability and results of the solution. Those experiments were applied to various models to identify the impact of factors such as mobility ratios, mapping of saturation methods, number of streamlines, time step sizes, and gravity effects. This study provides a detailed investigation of some fundamental issues that are currently unresolved in streamline simulation.

Chaban Habib, Fady Ruben

2004-12-01T23:59:59.000Z

234

VSHOT measurement uncertainty and sensitivity study  

DOE Green Energy (OSTI)

The Video Scanning Hartmann Optical Tester (VSHOT) is a slope-measuring tool for large, imprecise reflectors. It is a laser ray trace device developed to measure the optical quality of point-focus solar concentrating mirrors. A unique tool was needed because of the diverse geometry and very large size of solar concentrators, plus their large optical errors. To study the accuracy of VSHOT as well as its sensitivity to changes in test setup variables, a series of experiments were performed with a very precise, astronomical-grade mirror. The slope errors of the reference mirror were much smaller than the resolution of the VSHOT, so that any measured slope errors were caused by the instrument itself rather than the mirror. The VSHOT exceeded its accuracy goals by achieving about {+-}0.5% (68% confidence) error in the determination of focal length and {+-} 0.1 mrad (68% confidence) error in the determination of RMS slope error. Displacement of the test mirror from the optical axis caused the largest source of measured errors.

Jones, S.A.; Gruetzner, J.K.; Houser, R.M.; Edgar, R.M. [Sandia National Labs., Albuquerque, NM (United States); Wendelin, T.J. [National Renewable Energy Lab., Golden, CO (United States)

1997-08-01T23:59:59.000Z

235

Sensitivity of PDR Calculations to Microphysical Details  

E-Print Network (OSTI)

Our understanding of physical processes in Photodissociation regions or Photon Dominated Regions (PDRs) largely depends on the ability of spectral synthesis codes to reproduce the observed infrared emission-line spectrum. In this paper, we explore the sensitivity of a single PDR model to microphysical details. Our calculations use the Cloudy spectral synthesis code, recently modified to include a wealth of PDR physical processes. We show how the chemical/thermal structure of a PDR, along with the calculated spectrum, changes when the treatment of physical processes such as grain physics and atomic/molecular rates are varied. We find a significant variation in the intensities of PDR emission lines, depending on different treatments of the grain physics. We also show how different combinations of the cosmic-ray ionization rate, inclusion of grain-atom/ion charge transfer, and the grain size distribution can lead to very similar results for the chemical structure. Additionally, our results show the utility of Cloudy for the spectral modeling of molecular environments.

N. P. Abel; P. A. M. van Hoof; G. Shaw; G. J. Ferland; T. Elwert

2008-08-19T23:59:59.000Z

236

Exploiting level sensitive latches in wire pipelining  

E-Print Network (OSTI)

The present research presents procedures for exploitation of level sensitive latches in wire pipelining. The user gives a Steiner tree, having a signal source and set of destination or sinks, and the location in rectangular plane, capacitive load and required arrival time at each of the destinations. The user also defines a library of non-clocked (buffer) elements and clocked elements (flip-flop and latch), also known as synchronous elements. The first procedure performs concurrent repeater and synchronous element insertion in a bottom-up manner to find the minimum latency that may be achieved between the source and the destinations. The second procedure takes additional input (required latency) for each destination, derived from previous procedure, and finds the repeater and synchronous element assignments for all internal nodes of the Steiner tree, which minimize overall area used. These procedures utilize the latency and area advantages of latch based pipelining over flip-flop based pipelining. The second procedure suggests two methods to tackle the challenges that exist in a latch based design. The deferred delay padding technique is introduced, which removes the short path violations for latches with minimal extra cost.

Seth, Vikram

2004-12-01T23:59:59.000Z

237

Electron transfer at sensitized semiconductor electrodes  

DOE Green Energy (OSTI)

Electron transfer from the excited state of sensitizing dyes to the conduction band of semiconductors has been studied through photoelectrochemical techniques. Two systems were analyzed in detail: rhodamine B on ZnO and rose bengal on TiO/sub 2/. Prior to electrochemical experimentation, the adsorption characteristics of these dyes were investigated using ZnO, ZnS, and TiO/sub 2/ single crystals as substrates. Absorbance measurements of the adsorbed dye were taken as a function of the solution concentration of the dye. Adsorption isotherms heats of adsorption were also established; they were similar to literature data reported for adsorption of these dyes on powdered substrates. Using the absorbance data, the quantum efficiency for photoinjection of electrons from rhodamine B into a ZnO electrode was determined to be 2.7 x 10/sup -2/. This value was independent of the dye surface concentration down to 50% coverage of the electrode. With the assumption that not all of the rhodamine B adsorbed on the electrode has the same rate of electron injection, a kinetic model for the time decay of the photocurrent was developed; data were analyzed according to this theory. A rate constant for photoreduction of the adsorbed dye was determined for the reducing agents. 86 references.

Spitler, M.T.

1977-03-01T23:59:59.000Z

238

Obtaining patterns for identification of power quality disturbances using continuous wavelet transform  

Science Conference Proceedings (OSTI)

This paper presents a new approach for obtaining patterns for identification of power quality (PQ) disturbances present in electrical power systems with the use of continuous wavelet transform (CWT). A new difference coefficient matrix (DCM) is proposed, ... Keywords: classification, continuous wavelet transform, event detection, power quality

R. A. Gupta; R. Kumar; M. Gupta

2011-02-01T23:59:59.000Z

239

Delayed-Mode Calibration of Hydrographic Data Obtained from Animal-Borne Satellite Relay Data Loggers  

Science Conference Proceedings (OSTI)

A delayed-mode calibration procedure is presented to improve the quality of hydrographic data from CTD–Satellite Relay Data Loggers (CTD–SRDL) deployed on elephant seals. This procedure is applied on a dataset obtained with 10 CTD–SRDLs deployed ...

Fabien Roquet; Jean-Benoit Charrassin; Stephane Marchand; Lars Boehme; Mike Fedak; Gilles Reverdin; Christophe Guinet

2011-06-01T23:59:59.000Z

240

Explanation of the high temperature obtained in the Intermediate Power Test  

SciTech Connect

It is now generally known by those working on Tory II-A that the average maximum fuel element wall temperature obtained during the Intermediate Power Test was somewhat higher than the 2250 degrees F design value. The purpose of this report is to explain how this occurred.

Barnett, C.

1961-06-16T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

hal-00122749,version1-8Jan2007 Time Series Forecasting: Obtaining Long Term Trends with  

E-Print Network (OSTI)

. For example when forecast- ing an electrical consumption, it could be advan- tageous to predict all hourly As second example, we use the Polish electrical load time series [ 6]. This series contains hourly valueshal-00122749,version1-8Jan2007 Time Series Forecasting: Obtaining Long Term Trends with Self

Paris-Sud XI, Université de

242

Methods for obtaining an operating point sufficiently small signal stable in power systems including wind parks  

Science Conference Proceedings (OSTI)

This paper shows a simple approach to obtain an operating point sufficiently small signal stable. In the case of a stable operating point with a poorly damped oscillatory mode, the objective is to increase the damping of that mode. That is, the power ... Keywords: critical mode, damping, eigenvalues, inter-area oscillations, linearization, wind power converter

P. Ledesma; C. Gallardo

2008-07-01T23:59:59.000Z

243

Evaluation of extraction and purification methods for obtaining PCR-amplifiable DNA from compost  

E-Print Network (OSTI)

Evaluation of extraction and purification methods for obtaining PCR-amplifiable DNA from compost complicate the isolation of PCR- amplifiable DNA from compost and other organic-rich samples. In this study contamination, PCR amplifiability, and microbial community structure assessed by terminal restriction fragment

Michel Jr., Frederick C.

244

Sidescan Sonar Imagery of the Winter Marginal Ice Zone Obtained from an AUV  

Science Conference Proceedings (OSTI)

The first Arctic under-ice sidescan sonar imagery from an autonomous underwater vehicle (AUV) has been obtained in the winter marginal ice zone of the East Greenland Current at 73°00?N, 11°47?W, using a Maridan Martin 150 vehicle operated from R/...

P. Wadhams; J. P. Wilkinson; A. Kaletzky

2004-09-01T23:59:59.000Z

245

Radial sensitivity of kaonic atoms and strongly bound $\\bar K$ states  

E-Print Network (OSTI)

The strength of the low energy K^- nucleus real potential has recently received renewed attention in view of experimental evidence for the possible existence of strongly bound K^- states. Previous fits to kaonic atom data led to either 'shallow' or to 'deep' potentials, where only the former are in agreement with chiral approaches but only the latter can produce strongly bound states. Here we explore the uncertainties of the K^- nucleus optical potentials, obtained from fits to kaonic atom data, using the functional derivatives of the best-fit chi^2 values with respect to the potential. We find that only the deep type of potential provides information which is applicable to the K^- interaction in the nuclear interior.

N. Barnea; E. Friedman

2006-11-08T23:59:59.000Z

246

Radial sensitivity of kaonic atoms and strongly bound $\\bar K$ states  

E-Print Network (OSTI)

The strength of the low energy K^- nucleus real potential has recently received renewed attention in view of experimental evidence for the possible existence of strongly bound K^- states. Previous fits to kaonic atom data led to either 'shallow' or to 'deep' potentials, where only the former are in agreement with chiral approaches but only the latter can produce strongly bound states. Here we explore the uncertainties of the K^- nucleus optical potentials, obtained from fits to kaonic atom data, using the functional derivatives of the best-fit chi^2 values with respect to the potential. We find that only the deep type of potential provides information which is applicable to the K^- interaction in the nuclear interior.

Barnea, N

2006-01-01T23:59:59.000Z

247

Mixed potentials in radiative stellar collapse  

E-Print Network (OSTI)

We study the behaviour of a radiating star when the interior expanding, shearing fluid particles are traveling in geodesic motion. We demonstrate that it is possible to obtain new classes of exact solutions in terms of elementary functions without assuming a separable form for the gravitational potentials or initially fixing the temporal evolution of the model unlike earlier treatments. A systematic approach enables us to write the junction condition as a Riccati equation which under particular conditions may be transformed into a separable equation. New classes of solutions are generated which allow for mixed spatial and temporal dependence in the metric functions. We regain particular models found previously from our general classes of solutions.

S. Thirukkanesh; S. D. Maharaj

2010-06-24T23:59:59.000Z

248

Sensitivity of Battery Electric Vehicle Economics to Drive Patterns, Vehicle Range, and Charge Strategies  

Science Conference Proceedings (OSTI)

Battery electric vehicles (BEVs) offer the potential to reduce both oil imports and greenhouse gas emissions, but high upfront costs discourage many potential purchasers. Making an economic comparison with conventional alternatives is complicated in part by strong sensitivity to drive patterns, vehicle range, and charge strategies that affect vehicle utilization and battery wear. Identifying justifiable battery replacement schedules and sufficiently accounting for the limited range of a BEV add further complexity to the issue. The National Renewable Energy Laboratory developed the Battery Ownership Model to address these and related questions. The Battery Ownership Model is applied here to examine the sensitivity of BEV economics to drive patterns, vehicle range, and charge strategies when a high-fidelity battery degradation model, financially justified battery replacement schedules, and two different means of accounting for a BEV's unachievable vehicle miles traveled (VMT) are employed. We find that the value of unachievable VMT with a BEV has a strong impact on the cost-optimal range, charge strategy, and battery replacement schedule; that the overall cost competitiveness of a BEV is highly sensitive to vehicle-specific drive patterns; and that common cross-sectional drive patterns do not provide consistent representation of the relative cost of a BEV.

Neubauer, J.; Brooker, A.; Wood, E.

2012-07-01T23:59:59.000Z

249

Sensitivity below the standard quantum limit in gravitational wave detectors with Michelson-Fabry-Perot readout  

E-Print Network (OSTI)

We calculate the quantum noise limited displacement sensitivity of a Michelson-Fabry-Perot (MFP) with detuned cavities, followed by phase-sensitive homodyne detection. We show that the standard quantum limit can be surpassed even with resonant cavities and without any signal-recycling mirror nor additional cavities. Indeed, thanks to the homodyne detection, the output field quadrature can be chosen in such a way to cancel the effect of input amplitude fluctuations, i.e., eliminating the force noise. With detuned cavities, the modified opto-mechanical susceptivity allows to reach unlimited sensitivity for large enough (yet finite) optical power. Our expressions include mirror losses and cavity delay effect, for a realistic comparison with experiments. Our study is particularly devoted to gravitational wave detectors and we consider both an interferometer with free-falling mirrors, and a MFP as readout for a massive detector. In the latter case, the sensitivity curve of the recently conceived 'DUAL' detector, based on two acoustic modes, is obtained.

J. Belfi; F. Marin

2008-02-05T23:59:59.000Z

250

Context-Sensitive Query Auto-Completion ?  

E-Print Network (OSTI)

Query auto completion is known to provide poor predictions of the user’s query when her input prefix is very short (e.g., one or two characters). In this paper we show that context, such as the user’s recent queries, can be used to improve the prediction quality considerably even for such short prefixes. We propose a context-sensitive query auto completion algorithm, NearestCompletion, which outputs the completions of the user’s input that are most similar to the context queries. To measure similarity, we represent queries and contexts as high-dimensional term-weighted vectors and resort to cosine similarity. The mapping from queries to vectors is done through a new query expansion technique that we introduce, which expands a query by traversing the query recommendation tree rooted at the query. In order to evaluate our approach, we performed extensive experimentation over the public AOL query log. We demonstrate that when the recent user’s queries are relevant to the current query she is typing, then after typing a single character, NearestCompletion’s MRR is 48 % higher relative to the MRR of the standard MostPopularCompletion algorithm on average. When the context is irrelevant, however, NearestCompletion’s MRR is essentially zero. To mitigate this problem, we propose HybridCompletion, which is a hybrid of NearestCompletion with MostPopularCompletion. HybridCompletion is shown to dominate both NearestCompletion and MostPopularCompletion, achieving a total improvement of 31.5 % in MRR relative to MostPopular-Completion on average.

Ziv Bar-yossef; Naama Kraus

2011-01-01T23:59:59.000Z

251

Combined potential of future long-baseline and reactor experiments  

E-Print Network (OSTI)

We investigate the determination of neutrino oscillation parameters by experiments within the next ten years. The potential of conventional beam experiments (MINOS, ICARUS, OPERA), superbeam experiments (T2K, NOvA), and reactor experiments (D-CHOOZ) to improve the precision on the ``atmospheric'' parameters $\\Delta m^2_{31}$, $\\theta_{23}$, as well as the sensitivity to $\\theta_{13}$ are discussed. Further, we comment on the possibility to determine the leptonic CP-phase and the neutrino mass hierarchy if $\\theta_{13}$ turns out to be large.

P. Huber; M. Lindner; M. Rolinec; T. Schwetz; W. Winter

2004-12-09T23:59:59.000Z

252

Science Potential of a Deep Ocean Antineutrino Observatory  

E-Print Network (OSTI)

This paper presents science potential of a deep ocean antineutrino observatory under development at Hawaii. The observatory design allows for relocation from one site to another. Positioning the observatory some 60 km distant from a nuclear reactor complex enables precision measurement of neutrino mixing parameters, leading to a determination of neutrino mass hierarchy. At a mid-Pacific location the observatory measures the flux and ratio of uranium and thorium decay neutrinos from earth's mantle and performs a sensitive search for a hypothetical natural fission reactor in earth's core. A subsequent deployment at another mid-ocean location would test lateral heterogeneity of uranium and thorium in earth's mantle.

Steve Dye

2006-11-22T23:59:59.000Z

253

The Sensitivity of the Palmer Drought Severity Index and Palmer's Z-Index to their Calibration Coefficients Including Potential Evapotranspiration  

Science Conference Proceedings (OSTI)

The Palmer Drought Severity Index (PDSI) is routinely made available by NOAA for operational use, and it has also been calculated across the United States on a historical basis back to 1895 (Karl et al., 1983). Traditionally, the coefficients ...

Thomas R. Karl

1986-01-01T23:59:59.000Z

254

Method for making graded I-III-VI.sub.2 semiconductors and solar cell obtained thereby  

DOE Patents (OSTI)

Improved cell photovoltaic conversion efficiencies are obtained by the simultaneous elemental reactive evaporation process of Mickelsen and Chen for making semiconductors by closer control of the evaporation rates and substrate temperature during formation of the near contact, bulk, and near junction regions of a graded I-III-VI.sub.2, thin film, semiconductor, such as CuInSe.sub.2 /(Zn,Cd)S or another I-III-VI.sub.2 /II-VI heterojunction.

Devaney, Walter E. (Seattle, WA)

1987-08-04T23:59:59.000Z

255

Hydrodesulfurization and hydrodenitrogenation catalysts obtained from coal mineral matter. [Patent application  

DOE Patents (OSTI)

A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25 to 3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.

Hwai-der Liu, K.; Hamrin, C.E. Jr.

1981-03-26T23:59:59.000Z

256

A numerical method for obtaining the fine structure of X-ray spectra  

SciTech Connect

A numerical method based on techniques of inverse Fourier convolution and nonlinear least square algorithm, etc., is presented for obtaining high-resolved X-ray spectra of laser plasmas, which can eliminate the line-broadening induced by radiation sources and spectrographs, and can improve the spectral resolving power of spectrographs. The code ESDAP has now been successfully applied to the analysis of spectra from line-shaped Mg and CaF2 laser plasmas.

Zhang Lingqing; Han Shensheng; Jiang Chunhong; Xu Zhizhan; Zhang Zhengquan; Sun Lan [Shanghai Institute of Optics and Fine Mechanics, P. O. Box 800-211, Shanghai 201800 (China)

1995-05-01T23:59:59.000Z

257

Indian Country Solar Energy Potential Estimates & DOE IE Updates  

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

Potential for Renewable Energy Potential for Renewable Energy Development on Tribal Lands October 2012 1 Introduction * The DOE Office of Indian Energy Policy and Programs (OI) requested ICF International (ICF) to identify areas within Tribal Lands that have a strong potential for renewable energy generation (solar and wind) as a source of Tribal revenue within the geographic area covered by the Western Electric Coordination Council (WECC) transmission grid * ICF used a combination of geospatial modeling and power flow modeling to identify sites where: - Conditions are optimal for solar or wind generation - Access to high-voltage transmission lines is favorable - Transmission upgrade costs would be minimal 2 Geospatial Analysis Phase I: Identify Potential Sites * Obtained GIS layers (e.g., wind/solar resources, transmission

258

Sensitivity of shortwave radiative flux density, forcing, and heating rates to the aerosol vertical profile  

SciTech Connect

The effect of the aerosol vertical distribution on the solar radiation profiles, for idealized and measured profiles of optical properties (extinction and single-scattering albedo (SSA)) during the May 2003 Atmospheric Radiation Measurement (ARM) Aerosol Intensive Observation Period (AIOP), has been investigated using the Rapid Radiative Transfer Model Shortwave (RRTM_SW) code. Calculated profiles of down-welling and up-welling solar fluxes during the AIOP have been compared with the data measured by up- and down-looking solar broadband radiometers aboard a profiling research aircraft. The measured profiles of aerosol extinction, SSA, and water vapor obtained from the same aircraft that carried the radiometers served as the inputs for the model calculations. It is noteworthy that for this study, the uplooking radiometers were mounted on a stabilized platform that kept the radiometers parallel with respect to the earth’s horizontal plane. The results indicate that the shape of the aerosol extinction profiles has very little impact on direct radiative forcings at the top of atmosphere and surface in a cloud-free sky. However, as long as the aerosol is not purely scattering, the shape of the extinction profiles is important for forcing profiles. Identical extinction profiles with different absorption profiles drastically influence the forcing and heating rate profiles. Using aircraft data from 19 AIOP profiles over the Southern Great Plains (SGP), we are able to achieve broadband down-welling solar flux closure within 0.8% (bias difference) or 1.8% (rms difference), well within the expected measurement uncertainty of 1 to 3%. The poorer agreement in up-welling flux (bias -3.7%, rms 10%) is attributed to the use of inaccurate surface albedo data. The sensitivity tests reveal the important role accurate, vertically resolved aerosol extinction data plays in tightening flux closure. This study also suggests that in the presence of a strongly absorbing substance, aircraft flux measurements from a stabilized platform have the potential to determine heating rate profiles. These measurement-based heating rate profiles provide useful data for heating rate closure studies and indirect estimates of single scattering albedo assumed in radiative transfer calculations.

Guan, Hong; Schmid, Beat; Bucholtz, Anthony; Bergstrom, Robert

2010-03-31T23:59:59.000Z

259

DMTPC: Dark matter detection with directional sensitivity  

E-Print Network (OSTI)

The Dark Matter Time Projection Chamber (DMTPC) experiment uses CF_4 gas at low pressure (0.1 atm) to search for the directional signature of Galactic WIMP dark matter. We describe the DMTPC apparatus and summarize recent results from a 35.7 g-day exposure surface run at MIT. After nuclear recoil cuts are applied to the data, we find 105 candidate events in the energy range 80 - 200 keV, which is consistent with the expected cosmogenic neutron background. Using this data, we obtain a limit on the spin-dependent WIMP-proton cross-section of 2.0 \\times 10^{-33} cm^2 at a WIMP mass of 115 GeV/c^2. This detector is currently deployed underground at the Waste Isolation Pilot Plant in New Mexico.

Battat, J B R; Caldwell, T; Deaconu, C; Dujmic, D; Fedus, W; Fisher, P; Golub, F; Henderson, S; Inglis, A; Kaboth, A; Kohse, G; Lanza, R; Lee, A; Lopez, J; Monroe, J; Sahin, T; Sciolla, G; Skvorodnev, N; Tomita, H; Wellenstein, H; Wolfe, I; Yamamoto, R; Yegoryan, H

2010-01-01T23:59:59.000Z

260

Stochastic Resonance in Washboard Potentials  

E-Print Network (OSTI)

We study the mobility of an overdamped particle in a periodic potential tilted by a constant force. The mobility exhibits a stochastic resonance in inhomogeneous systems with space dependent friction coefficient. The result indicates that the presence of oscillating external field is not essential for the observability of stochastic resonance, at least in the inhomogenous medium. I.

Debasis Dan A; Mangal C. Mahato; A. M. Jayannavar B

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Biomass Energy Crops: Massachusetts' Potential  

E-Print Network (OSTI)

Biomass Energy Crops: Massachusetts' Potential Prepared for: Massachusetts Division of Energy;#12;Executive Summary In Massachusetts, biomass energy has typically meant wood chips derived from the region's extensive forest cover. Yet nationally, biomass energy from dedicated energy crops and from crop residues

Schweik, Charles M.

262

Software Sensitivity Review | Scientific and Technical Information Program  

Office of Scientific and Technical Information (OSTI)

Sensitivity Review Sensitivity Review Print page Print page Email page Email page As required by DOE O 241.1B, software submitting sites are to review all software for classified and controlled unclassified information, including Personally Identifiable Information (PII), according to approved local procedures. Prior to announcing and/or submitting software to ESTSC or a SIAC, or disseminating software publicly, the submitting site should conduct reviews to determine the appropriate Intellectual Property or other category of sensitivity. Those categories include: Unlimited Announcement - Software which be made available to all requesters; government, public and foreign (sensitive countries require Headquarters approval). Open Source Software - Computer software that is distributed under a

263

Process sensitivity of the hybrid sulphur thermochemical cycle / Gerhard Venter.  

E-Print Network (OSTI)

??A simple flowsheet of the hybrid sulphur cycle was devised and a steady state simulation thereof was built in Aspen. A sensitivity analysis was done… (more)

Venter, Gerhardus Petrus

2010-01-01T23:59:59.000Z

264

Flicker Performance of Newer Lighting Technologies and Other Sensitive Equipment  

Science Conference Proceedings (OSTI)

This report presents preliminary results of the response of the modern lighting technologies and sensitive household electronic loads to the voltage fluctuations in the supply system.

2011-12-22T23:59:59.000Z

265

Advantages of Dual Mode Imaging for Managing Sensitive Imaging Information  

Science Conference Proceedings (OSTI)

Paper addressing information security management of sensitive images in an Arms Control regime, to be presented at the 2010 INMM Meeting.

Pitts, W. Karl; Jarman, Kenneth D.; Miller, Erin A.; McDonald, Benjamin S.; Misner, Alex C.; Myjak, Mitchell J.; Robinson, Sean M.; Seifert, Allen; Seifert, Carolyn E.; Woodring, Mitchell L.

2010-08-11T23:59:59.000Z

266

Microstructure Sensitive Design Framework for Elastic-Plastic Multi ...  

Science Conference Proceedings (OSTI)

Abstract Scope, In this study, a microstructure sensitive design (MSD) framework for elastic-plastic ... Elastic Deformation Mechanics of Cellulose Nanocrystals.

267

Quantifying Consumer Sensitivity to Hydrogen Refueling Station Coverage (Presentation)  

DOE Green Energy (OSTI)

This presentation by Cory Welch at the 2007 DOE Hydrogen Program Annual Merit Review Meeting focuses on consumer sensitivity to hydrogen refueling station coverage.

Welch, C.

2007-05-17T23:59:59.000Z

268

DOE Hydrogen Analysis Repository: Sensitivity Analysis of H2...  

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

David Greene Brief Description: This project seeks to understand market prospects, costs, and benefits of light-duty hydrogen fuel cell vehicles and their sensitivity to...

269

TSPA Model Development and Sensitivity Analysis of Processes...  

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

Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear Waste TSPA Model Development and Sensitivity Analysis of Processes Affecting...

270

The Sensitivity of Investment Casting Simulations to the Accuracy of ...  

Science Conference Proceedings (OSTI)

THE SENSITIVITY OF INVESTMENT CASTING SIMULATIONS TO THE ACCURACY OF. THERMOPHYSICAL PROPERTY VALUES. X. L. Yang1, P. D. Lee1, ...

271

Variable Selection and Sensitivity Analysis via Dynamic Trees...  

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

trees, this approach allows for dynamic (sequential) variable selection with fully Bayesian evidence and sensitivity indices not previously enjoyed. Compared with GPs, it...

272

Improved Dye-Sensitized Solar Cell (DSSC) for Higher Energy ...  

A University of Colorado research group led by Rich Noble has developed a novel approach to dye-sensitized solar cells that increases solar-to-electrical energy ...

273

Offshore Wind Plant Balance-of-Station Cost Drivers and Sensitivities...  

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

Sensitivities OFFSHORE WIND PLANT BALANCE-OF-STATION COST DRIVERS AND SENSITIVITIES OFFSHORE WIND PLANT BALANCE-OF-STATION COST DRIVERS AND SENSITIVITIES G. Saur, B. Maples, B....

274

Quantifying National Energy Savings Potential of Lighting Controls in  

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

National Energy Savings Potential of Lighting Controls in National Energy Savings Potential of Lighting Controls in Commercial Buildings Title Quantifying National Energy Savings Potential of Lighting Controls in Commercial Buildings Publication Type Report Year of Publication 2012 Authors Williams, Alison A., Barbara A. Atkinson, Karina Garbesi, and Francis M. Rubinstein Pagination 14 Date Published May Publisher LBNL-5895E Abstract Lighting has the largest estimated technical potential for energy savings of any U.S. building end-use. A significant fraction of that potential is believed to lie in lighting system controls. While controls are incorporated in national model building codes, their adoption and enforcement are spotty, and controls have been largely ignored in energy efficiency standards, leaving much potential untapped. The development of sound energy policy with respect to lighting controls depends on improved quantification of potential savings. Researchers have been quantifying energy savings from lighting controls in commercial buildings for more than 30 years, but results vary widely. This meta-analysis of energy savings potential used 240 savings estimates from 88 published sources, categorized into daylighting strategies, occupancy-based strategies, personal tuning, and institutional tuning. Beginning with an average of savings estimates based on the entire literature, this research added successive analytical filters to identify potential biases introduced to the estimates by different analytical approaches. We obtained relatively robust final estimates of average savings: 24% for occupancy, 28% for daylighting, 31% for personal tuning, 36% for institutional tuning, and 38% for combined approaches. Using these data and estimates of current and full penetration of controls, we calculated national energy savings potential on the order of 19%.

275

Sensitivity and uncertainty analysis applied to the JHR reactivity prediction  

SciTech Connect

The on-going AMMON program in EOLE reactor at CEA Cadarache (France) provides experimental results to qualify the HORUS-3D/N neutronics calculation scheme used for the design and safety studies of the new Material Testing Jules Horowitz Reactor (JHR). This paper presents the determination of technological and nuclear data uncertainties on the core reactivity and the propagation of the latter from the AMMON experiment to JHR. The technological uncertainty propagation was performed with a direct perturbation methodology using the 3D French stochastic code TRIPOLI4 and a statistical methodology using the 2D French deterministic code APOLLO2-MOC which leads to a value of 289 pcm (1{sigma}). The Nuclear Data uncertainty propagation relies on a sensitivity study on the main isotopes and the use of a retroactive marginalization method applied to the JEFF 3.1.1 {sup 27}Al evaluation in order to obtain a realistic multi-group covariance matrix associated with the considered evaluation. This nuclear data uncertainty propagation leads to a K{sub eff} uncertainty of 624 pcm for the JHR core and 684 pcm for the AMMON reference configuration core. Finally, transposition and reduction of the prior uncertainty were made using the Representativity method which demonstrates the similarity of the AMMON experiment with JHR (the representativity factor is 0.95). The final impact of JEFF 3.1.1 nuclear data on the Begin Of Life (BOL) JHR reactivity calculated by the HORUS-3D/N V4.0 is a bias of +216 pcm with an associated posterior uncertainty of 304 pcm (1{sigma}). (authors)

Leray, O.; Vaglio-Gaudard, C.; Hudelot, J. P.; Santamarina, A.; Noguere, G. [CEA, DER, SPRC, F-13108 St Paul-Lez-Durance (France); Di-Salvo, J. [CEA, DER, SPEx, F-13108 St Paul-Lez-Durance (France)

2012-07-01T23:59:59.000Z

276

Chemical Potential Dependence of Chiral Quark Condensate in Dyson-Schwinger Equation Approach of QCD  

E-Print Network (OSTI)

We propose a chemical potential dependent effective gluon propagator and study the chiral quark condensate in strongly interacting matter in the framework of Dyson-Schwinger equation approach. The obtained results manifest that, as the effect of the chemical potential on the effective gluon propagator is taken into account, the chiral quark condensate decreases gradually with the increasing of the chemical potential if it is less than the critical value, and the condensate vanishes suddenly at the critical chemical potential. The inclusion of the chemical potential in the effective gluon propagator enhances the decreasing rate and decreases the critical chemical potential. It indicates that the chiral symmetry can be restored completely at a critical chemical potential and restored partially as the chemical potential is less than the critical value. If the effective gluon propagator is independent of the chemical potential, the chiral symmetry can only be restored suddenly but no gradual restoration.

Lei Chang; Huan Chen; Bin Wang; Wei Yuan; Yu-xin Liu

2005-08-08T23:59:59.000Z

277

Disposition of highly enriched uranium obtained from the Republic of Kazakhstan. Environmental assessment  

Science Conference Proceedings (OSTI)

This EA assesses the potential environmental impacts associated with DOE`s proposal to transport 600 kg of Kazakhstand-origin HEU from Y-12 to a blending site (B&W Lynchburg or NFS Erwin), transport low-enriched UF6 blending stock from a gaseous diffusion plant to GE Wilmington and U oxide blending stock to the blending site, blending the HEU and uranium oxide blending stock to produce LEU in the form of uranyl nitrate, and transport the uranyl nitrate from the blending site to USEC Portsmouth.

NONE

1995-05-01T23:59:59.000Z

278

Obtaining the optimal fuel conserving investment mix: a linear programming hedonic technique approach  

SciTech Connect

The objectives of this study were to: (1) determine how energy efficiency affects the resale value of homes; (2) use this information concerning the implicit price of energy efficiency to estimate the resale value of fuel saving investments; and (3) incorporate these resale values into the investment decision process and determine the efficient investment mix for a household planning to own a given home for three alternative time periods. Two models were used to accomplish these objectives. A hedonic price model was used to determine the impact of energy efficiency on housing prices. The hedonic technique is a method used to attach implicit prices to characteristics that are not themselves bought and sold in markets, but are components of market goods. The hedonic model in this study provided an estimate of the implicit price paid for an increase in energy efficiency in homes on the Des-Moines housing market. In order to determine how the length of time the home is to be owned affects the optimal investment mix, a linear programming model was used to determine the cost minimizing investment mix for a baseline house under the assumption that it would be owned for 6, 20, and 50 years, alternatively. The results of the hedonic technique revealed that a premium is paid for energy efficient homes in Des Moines. The results of the linear programming model reveal that the optimal fuel saving investment mix for a home is sensitive to the time the home is to be owned.

Dinan, T.M.

1984-01-01T23:59:59.000Z

279

Renewable Energy Technical Potential | Open Energy Information  

Open Energy Info (EERE)

Energy Technical Potential Energy Technical Potential Jump to: navigation, search Dictionary.png Renewable Energy Technical Potential: Renewable energy technical potential represents the achievable energy generation of a particular technology given system performance, topographic limitations, environmental, and land-use constraints. Other definitions:Wikipedia Reegle The primary benefit of assessing technical potential is that it establishes an upper-boundary estimate of development potential.[1] Multiple Types of Potential Defining RE Potential There are multiple types of potential, each with their own assumptions. In addition to technical potential, resource, economic, and market potentials are also considered when assessing the overall development potential of a given technology. (See 'Defining RE Potential' to the right).

280

Methodologies used by Warsaw Pact countries (except USSR) in obtaining US technologies. Student report  

Science Conference Proceedings (OSTI)

The Warsaw Pact countries obtain U.S. technologies by legal and illegal means. Methods of collection include espionage, overt collection, acquisition by scientific and educational exchange participants, and illegal trade activities. Examples of methods used by the Warsaw Pact countries (except the USSR) are provided. The US faces barriers to preventing loss of its technologies. Among these are resistance from US business interests, insufficient cooperation between US government agencies and overseas allies, lack of US counterintelligence personnel, and the openess of American society. The study concludes that the Warsaw Pact's countries have narrowed NATO's qualitative lead in weaponry as a result of the Warsaw Pact's acquisition effort.

Cheeseman, R.J.

1987-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

An inverse scheme for sensitivity and uncertainty analysis in basin modeling: the resolution limits of Easy%Ro  

E-Print Network (OSTI)

One of the major contributors to uncertainties in basin modeling arises from the determination of the parameters necessary for reconstructing the thermal history due to the importance of the thermal maturity in evaluating the petroleum potential of a basin. The methods to determine these uncertainties need to be developed, tested and applied. Two major methods (geodynamic models and calibration of paleoheat flow to thermal indicators) are available for determining the paleoheat flux of a sedimentary basin. Of the latter, the chemical kinetic model Easy%Ro (Sweeney and Burnham, 1990) is widely used and has a firm foundation in laboratory experiments and calibration. The Easy%Ro model calculates the systematic variation of vitrinite reflectance with time and temperature. Even though Easy%Ro is widely used for constraining paleoheat flow by calibrating and modeling vitrinite reflectance, its ability to resolve paleoheat flow and its success in providing the relationship between vitrinite reflectance and the thermal history of a sedimentary basin is not yet investigated and determined quantitatively. This study provides the first quantitative approach to determine the resolution limits of the chemical kinetic model, Easy%Ro. Paleothermal gradients are calibrated against vitrinite reflectance using the Easy%Ro model plugged into a single parameter inverse engine in order to perform sensitivity analysis and assess the uncertainty. Vitrinite reflectance data is obtained from the B-1 , Lulu-1 , Mona-1 , Sten-1 and Q-1 wells located in the Danish Central Trough, in the North Sea. A range of geothermal gradients are investigated using the model. As a quantitative measure of mismatch between modeled and measured values, the mean squared residual (MSR) is used (MSR =(1/n) [](Ro[]-Ro[])²). A 90% confidence level on the best answer (lowest MSR) is taken to represent the acceptable error range for the particular model. The sensitivity of the Easy%Ro model to changes in geothermal gradient and its ability to resolve thermal history are investigated from the determined uncertainties associated with scatter in the calibration data (measured vitrinite reflectance). The results are used to elaborate on Easy%Ro resolution limits with respect to thermal history.

Huvaz, Ozkan

2000-01-01T23:59:59.000Z

282

Potential Uses of Depleted Uranium  

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

POTENTIAL USES OF DEPLETED URANIUM POTENTIAL USES OF DEPLETED URANIUM Robert R. Price U.S. Department of Energy Germantown, Maryland 20874 M. Jonathan Haire and Allen G. Croff Chemical Technology Division Oak Ridge National Laboratory * Oak Ridge, Tennessee 37831-6180 June 2000 For American Nuclear Society 2000 International Winter and Embedded Topical Meetings Washington, D.C. November 12B16, 2000 The submitted manuscript has been authored by a contractor of the U.S. Government under contract DE-AC05-00OR22725. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes. _________________________

283

On the Potential of VHF Wind Profilers for Studying Convective Processes in the Tropics  

Science Conference Proceedings (OSTI)

In this paper we provide a set of examples to demonstrate the potential of VHF radar wind profilers for studying tropical convection processes. Our examples were extracted from data obtained from the NOAA/CU Pacific Profiler Network, which has ...

B. B. Balsley; D. A. Carter; A. C. Riddle; W. L. Ecklund; K. S. Gage

1991-09-01T23:59:59.000Z

284

Potential Predictability of U.S. Summer Climate with “Perfect” Soil Moisture  

Science Conference Proceedings (OSTI)

The potential predictability of surface-air temperature and precipitation over the United States was assessed for a GCM forced by observed sea surface temperatures and an estimate of observed soil-moisture content. The latter was obtained by ...

Fanglin Yang; Arun Kumar; K-M. Lau

2004-10-01T23:59:59.000Z

285

The Continuous Spectrum in Baroclinic Models with Uniform Potential Vorticity Gradient and Ekman Damping  

Science Conference Proceedings (OSTI)

Analytic solutions of the continuous spectrum are obtained for quasigeostrophic models in which the basic-state meridional potential vorticity (PV) gradient is uniform but nonzero. The modes that form the continuous spectrum—continuum modes—are ...

Hylke de Vries

2009-09-01T23:59:59.000Z

286

Making the most of Taylor expansion and imaginary chemical potential  

E-Print Network (OSTI)

We present preliminary results for the curvature of the pseudocritical line and susceptibilities in Nf = 2 + 1 flavor QCD. The computations are carried out on lattice sizes of 16x16x16x4, at matching parameters of early work of the Bielefeld group. Emphasis is placed on the control of systematic errors, by cross-validating results obtained by use of the Taylor expansion and measurements at imaginary chemical potential. To this end, we generalize the magnetic equation of state to the analysis of the number density, and we extend it to imaginary values of the chemical potential.

E. Laermann; F. Meyer; M. P. Lombardo

2013-04-11T23:59:59.000Z

287

Thermodynamic potentials and Thermodynamic Relations in Nonextensive Thermodynamics  

E-Print Network (OSTI)

The generalized Gibbs free energy and enthalpy is derived in the framework of nonextensive thermodynamics by using the so-called physical temperature and the physical pressure. Some thermodynamical relations are studied by considering the difference between the physical temperature and the inverse of Lagrange multiplier. The thermodynamical relation between the heat capacities at a constant volume and at a constant pressure is obtained using the generalized thermodynamical potential, which is found to be different from the traditional one in Gibbs thermodynamics. But, the expressions for the heat capacities using the generalized thermodynamical potentials are unchanged.

Lina, Guo

2010-01-01T23:59:59.000Z

288

Effective Interaction Potentials and Physical Properties of Complex Plasmas  

SciTech Connect

Microscopic, thermodynamic and transport properties of complex plasmas are investigated on the basis of effective potentials of interparticle interaction. These potentials take into account correlation effects and quantum-mechanical diffraction. Plasma composition, thermodynamic functions of hydrogen and helium plasmas are obtained for a wide region of coupling parameter. Collision processes in partially ionized plasma are considered; some kinetic characteristics such as phase shift, scattering cross section, bremsstrahlung cross section and absorption coefficient are investigated. Dynamic and transport properties of dusty plasma are studied by computer simulation method of the Langevin dynamics.

Ramazanov, T. S.; Dzhumagulova, K. N.; Gabdullin, M. T.; Omarbakiyeva, Y. A. [Institute of Experimental and Theoretical Physics, al-Farabi Kazakh National University, 96a Tole Bi, Almaty 050012 (Kazakhstan)

2009-11-10T23:59:59.000Z

289

Propagation in nonlocal optical potentials  

SciTech Connect

It is shown that a nonlocal optical potential implies multiple eigenmode propagation. This is important when the mean free path becomes of the order of the nonlocality, such as in the strong absorption situation occurring for pion scattering near the 3-3 resonance, and consequently the propagation cannot be described reasonably by one complex wave number. The eigenmode structure can be seen most directly in quasielastic scattering.

Lenz, F.; Moniz, E.J.

1975-09-01T23:59:59.000Z

290

California Industrial Energy Efficiency Potential  

SciTech Connect

This paper presents an overview of the modeling approach andhighlights key findings of a California industrial energy efficiencypotential study. In addition to providing estimates of technical andeconomic potential, the study examines achievable program potential undervarious program-funding scenarios. The focus is on electricity andnatural gas savings for manufacturing in the service territories ofCalifornia's investor-owned utilities (IOUs). The assessment is conductedby industry type and by end use. Both crosscutting technologies andindustry-specific process measures are examined. Measure penetration intothe marketplace is modeled as a function of customer awareness, measurecost effectiveness, and perceived market barriers. Data for the studycomes from a variety of sources, including: utility billing records, theEnergy Information Association (EIA) Manufacturing Energy ConsumptionSurvey (MECS), state-sponsored avoided cost studies, energy efficiencyprogram filings, and technology savings and cost data developed throughLawrence Berkeley National Laboratory (LBNL). The study identifies 1,706GWh and 47 Mth (million therms) per year of achievable potential over thenext twelve years under recent levels of program expenditures, accountingfor 5.2 percent of industrial electricity consumption and 1.3 percent ofindustrial natural gas consumption. These estimates grow to 2,748 GWh and192 Mth per year if all cost-effective and achievable opportunities arepursued. Key industrial electricity end uses, in terms of energy savingspotential, include compressed air and pumping systems that combine toaccount for about half of the total achievable potential estimates. Fornatural gas, savings are concentrated in the boiler and process heatingend uses, accounting for over 99 percent to total achievablepotential.

Coito, Fred; Worrell, Ernst; Price, Lynn; Masanet, Eric; RafaelFriedmann; Rufo, Mike

2005-06-01T23:59:59.000Z

291

Peak load management: Potential options  

SciTech Connect

This report reviews options that may be alternatives to transmission construction (ATT) applicable both generally and at specific locations in the service area of the Bonneville Power Administration (BPA). Some of these options have potential as specific alternatives to the Shelton-Fairmount 230-kV Reinforcement Project, which is the focus of this study. A listing of 31 peak load management (PLM) options is included. Estimated costs and normalized hourly load shapes, corresponding to the respective base load and controlled load cases, are considered for 15 of the above options. A summary page is presented for each of these options, grouped with respect to its applicability in the residential, commercial, industrial, and agricultural sectors. The report contains comments on PLM measures for which load shape management characteristics are not yet available. These comments address the potential relevance of the options and the possible difficulty that may be encountered in characterizing their value should be of interest in this investigation. The report also identifies options that could improve the efficiency of the three customer utility distribution systems supplied by the Shelton-Fairmount Reinforcement Project. Potential cogeneration options in the Olympic Peninsula are also discussed. These discussions focus on the options that appear to be most promising on the Olympic Peninsula. Finally, a short list of options is recommended for investigation in the next phase of this study. 9 refs., 24 tabs.

Englin, J.E.; De Steese, J.G.; Schultz, R.W.; Kellogg, M.A.

1989-10-01T23:59:59.000Z

292

Towards sensitivity analysis of hybrid systems using simulink  

Science Conference Proceedings (OSTI)

In the design of engineered systems two types of models are used: (i) analysis models and (ii) system models. The system models are primary deliverables between design stages whereas analysis models are employed within a design stage. Sensitivity analysis ... Keywords: sensitivity analysis, simulation, verification

Zhi Han; Pieter J. Mosterman

2013-04-01T23:59:59.000Z

293

Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods  

DOE Patents (OSTI)

A process is described for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H[sub 2]O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg[sub 2]Cl[sub 2]. The method for doing this involves dissolving a precise amount of Hg[sub 2]Cl[sub 2] in an electrolyte solution comprised of concentrated HCl and H[sub 2]O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg. 1 fig.

Grossman, M.W.; George, W.A.

1987-07-07T23:59:59.000Z

294

Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods  

DOE Patents (OSTI)

A process for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H.sub.2 O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg.sub.2 Cl.sub.2. The method for doing this involves dissolving a precise amount of Hg.sub.2 Cl.sub.2 in an electrolyte solution comprised of concentrated HCl and H.sub.2 O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg.

Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

1987-01-01T23:59:59.000Z

295

Sensitivity of Rooftop PV Projections in the SunShot Vision Study to Market Assumptions  

Science Conference Proceedings (OSTI)

The SunShot Vision Study explored the potential growth of solar markets if solar prices decreased by about 75% from 2010 to 2020. The SolarDS model was used to simulate rooftop PV demand for this study, based on several PV market assumptions--future electricity rates, customer access to financing, and others--in addition to the SunShot PV price projections. This paper finds that modeled PV demand is highly sensitive to several non-price market assumptions, particularly PV financing parameters.

Drury, E.; Denholm, P.; Margolis, R.

2013-01-01T23:59:59.000Z

296

Genetic profiling of lymphoblastoid cell lines sensitive to low dose  

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

profiling of lymphoblastoid cell lines sensitive to low dose profiling of lymphoblastoid cell lines sensitive to low dose radiation David Rocke University of California Davis Abstract Previous study from our laboratory has identified pathways associated with low dose ionizing radiation (LDIR) in vivo that is consistent across individuals. Furthermore, gene expression patterns have revealed genetic variation between individuals, which may play a role in individual sensitivity to LDIR. The aim is to evaluate microRNA and mRNA expression patterns in lymphoblast cell lines that exhibit sensitivity to radiation. Human lymphoblastoid cell lines were screened for low dose radiation sensitivity by apoptosis, cellular proliferation, and colony forming assay. Cells were irradiated with 5cGy and 10cGy and analyzed at multiple time

297

Dual sensitivity mode system for monitoring processes and sensors  

DOE Patents (OSTI)

A method and system for analyzing a source of data. The system and method involves initially training a system using a selected data signal, calculating at least two levels of sensitivity using a pattern recognition methodology, activating a first mode of alarm sensitivity to monitor the data source, activating a second mode of alarm sensitivity to monitor the data source and generating a first alarm signal upon the first mode of sensitivity detecting an alarm condition and a second alarm signal upon the second mode of sensitivity detecting an associated alarm condition. The first alarm condition and second alarm condition can be acted upon by an operator and/or analyzed by a specialist or computer program.

Wilks, Alan D. (Mount Prospect, IL); Wegerich, Stephan W. (Glendale Heights, IL); Gross, Kenneth C. (Bolingbrook, IL)

2000-01-01T23:59:59.000Z

298

Examining the Potential of Renewable Energy  

SciTech Connect

This outreach document goes to potential partners for NREL's Renewable Energy Potential Initiative, which will explore the long-term potential of Renewable Energy to meet a substantial share of U.S. energy needs.

2006-09-01T23:59:59.000Z

299

Electrochemical study of Aluminum-Fly Ash composites obtained by powder metallurgy  

Science Conference Proceedings (OSTI)

In this paper, two different ASTM C 618 Class C fly ashes (FA) were used for the production of aluminum metal matrix composites (MMCs) using powder metallurgy (PM) technology. Calcareous FAs were sampled from the electrostatic precipitators of two different lignite-fired power stations: from Megalopolis, Southern Greece (MFA) and from Kardia, Northen Greece (KFA), under maximum electricity load. FAs were milled in order to reduce the mean particle diameter and Aluminum-FA composites containing 10% and 20% of FA were then prepared and compacted. The green products were sintered for 2 h at 600 Degree-Sign C. Sintered Al-FA MMCs showed increased hardness and wear resistance suggesting their possible use in industrial applications for example in covers, casings, brake rotors or engine blocks. As most possible industrial applications of MMCs not only require wear resistance, but also corrosion resistance in different mild aggressive medias, this paper aims to study the electrochemical behavior of FA MMCs in order to evaluate their corrosion resistance. The morphology and chemical composition of the phases in the Aluminum-FA composite samples were investigated using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDXS). Moreover, topographic and Volta potential maps were acquired by Scanning Kelvin Probe Force Microscopy (SKP-FM). Volta potential maps provide information about the electrochemical behavior of the different phases in absence of electrolyte. The electrochemical behavior was investigated by Open Circuit Potential measurements and potentiodynamic polarization, while the corrosion mechanisms were studied by SEM observations after different times of immersion in a mild corrosive medium. In all cases it could be stated that the addition of the FA particles into the Al matrix might cause an increase of the hardness and mechanical properties of the pure aluminum but deteriorates the corrosion resistance. The degradation phenomena occurring on the FA containing samples might be related to the following mechanisms: 1) Partial detachment or dissolution of the FA soluble phases, in particular based on Si, Fe and Ca; 2) dissolution of the Al matrix surrounding the FA particles due to crevice corrosion; 3) Al localized dissolution due to galvanic coupling between the Fe-rich intermetallics and the matrix. - Highlights: Black-Right-Pointing-Pointer Aluminum metal matrix composites containing two types of fly ashes have been characterized. Black-Right-Pointing-Pointer The microstructure and the electrochemical behavior have been studied using different techniques. Black-Right-Pointing-Pointer The addition of FA deteriorates the corrosion resistance of the aluminum. Black-Right-Pointing-Pointer Degradation mechanisms: galvanic coupling, crevice corrosion, detachment of FA particles.

Marin, E. [Department of Chemistry, Physics and Environment, University of Udine, Via Cotonificio 108, 33100, Udine (Italy); Lekka, M., E-mail: maria.lekka@uniud.it [Department of Chemistry, Physics and Environment, University of Udine, Via Cotonificio 108, 33100, Udine (Italy); Andreatta, F.; Fedrizzi, L. [Department of Chemistry, Physics and Environment, University of Udine, Via Cotonificio 108, 33100, Udine (Italy); Itskos, G. [School of Chemical Engineering, National Technical University of Athens, Iroon Polytechneiou 9, Zografou 15780, Athens (Greece); Centre for Research and Technology Hellas/Institute for Solid Fuels Technology and Applications, Mesogeion Avenue 357-359, Halandri 15231, Athens (Greece); Moutsatsou, A. [School of Chemical Engineering, National Technical University of Athens, Iroon Polytechneiou 9, Zografou 15780, Athens (Greece); Koukouzas, N. [Centre for Research and Technology Hellas/Institute for Solid Fuels Technology and Applications, Mesogeion Avenue 357-359, Halandri 15231, Athens (Greece); Kouloumbi, N. [School of Chemical Engineering, National Technical University of Athens, Iroon Polytechneiou 9, Zografou 15780, Athens (Greece)

2012-07-15T23:59:59.000Z

300

Correction method for obtaining the variationally best ground-state pair density  

SciTech Connect

We present a correction method for the pair density (PD) to get close to the ground-state one. The PD is corrected to be a variationally best PD within the search region that is extended by adding the uniformly scaled PDs to its elements. The corrected PD is kept N-representable and satisfies the virial relation rigorously. The validity of the present method is confirmed by numerical calculations of neon atom. It is shown that the root-mean-square error of the electron-electron interaction and external potential energies, which is a good benchmark for the error of the PD, is reduced by 69.7% without additional heavy calculations.

Higuchi, Masahiko; Higuchi, Katsuhiko [Department of Physics, Faculty of Science, Shinshu University, Matsumoto 390-8621 (Japan); Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima 739-8527 (Japan)

2011-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Lab obtains approval to begin design on new radioactive waste staging  

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

New radioactive waste staging facility New radioactive waste staging facility Lab obtains approval to begin design on new radioactive waste staging facility The 4-acre complex will include multiple staging buildings plus an operations center and a concrete pad for mobile waste characterization equipment. September 1, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy

302

Process and apparatus for obtaining samples of liquid and gas from soil  

DOE Patents (OSTI)

An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus. 8 figs.

Rossabi, J.; May, C.P.; Pemberton, B.E.; Shinn, J.; Sprague, K.

1999-03-30T23:59:59.000Z

303

Characteristics of pyrobitumen and oil obtained from the pyrolysis of Tipton member Green River oil shale  

DOE Green Energy (OSTI)

The pyrobitumens and oils produced from the Green River oil shale at 375, 400 and 425{degree}C for various reaction times were characterized to obtain information for kerogen decomposition models. The atomic H/C ratio of pyrobitumen decreased with increasing reaction temperature and time. The average molecular weight of pyrobitumen increased with reaction temperature and time, reached a maximum at each temperature, and then decreased. The pyrobitumens contained an extremely high amount of polar materials; the variations of polar materials, nitrogen contents of pyrobitumen, and pyrobitumen amounts followed the same pattern, suggesting that the nitrogen functional groups play an important role during kerogen decomposition. In contrast, the oils contained much lower amounts of polars and had a constant atomic H/C ratio of 1.70 and an average molecular weight of about 270. Most of the aliphatic hydrocarbons occurred in the oil rather than pyrobitumen after the oil shale pyrolysis.

Chong, S.L.; Miknis, F.P. (Western Research Institute, Laramie, WY (USA)); Zhao, X. (Daqing Petroleum Institute, Heilongjiang (China)); Holmes, S. (Shell Development Co., Houston, TX (USA))

1989-03-01T23:59:59.000Z

304

Preliminary report on the agricultural sector impacts of obtaining ethanol from grain  

DOE Green Energy (OSTI)

This report was prepared as a part of SERI task number 3321.3, Gasohol Policy Analysis. This work is supported by the Biomass Energy Systems Branch of the Office of Energy Technology, US Department of Energy. The report describes some of the preliminary results that affect such issues as the balance of payments and energy import impacts of obtaining liquid fuels from agricultural crops. This report is a precursor to a more detailed and comprehensive look at these and other issues such as food price impacts and farm income impacts that will come in Fall 1979. Policy issues related to this work concern farm income and production programs and tax and subsidy schemes for the end products.

Hertzmark, D.I.

1979-07-01T23:59:59.000Z

305

Edge-enhanced imaging obtained with very broad energy band x-rays  

SciTech Connect

We demonstrate both theoretically and experimentally that edge-enhancement effects are produced when objects, in contact with the x-ray detector, are imaged by using very broad x-ray spectra. Radiographs of thin Al objects have been obtained with a table-top synchrotron source which generates x-rays in the energy range from a few kilo-electron-volts up to 6 MeV. Edge-enhancement effects arise from the combination of x-ray absorption (kilo-electron-volt part of the spectrum) and secondary particle emission (mega-electron-volt part of the spectrum) within the sample. The exact contribution of absorption and emission profiles in the edge-enhanced images has been calculated via Monte Carlo simulation.

Taibi, A.; Cardarelli, P.; Di Domenico, G.; Marziani, M.; Gambaccini, M. [Department of Physics, University of Ferrara, INFN Section of Ferrara, via Saragat 1, 44100 Ferrara (Italy); Hanashima, T. [Photon Production Laboratory Ltd., 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577 (Japan); Yamada, H. [Synchrotron Light Life Science Center, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577 (Japan)

2010-04-05T23:59:59.000Z

306

QCD based static potential between heavy quarks  

SciTech Connect

We calculate the static potential between a quark-anti quark pair using dual potentials to describe long-distance Yang-Mills theory.

Baker, M. [Washington Univ., Seattle, WA (United States). Dept. of Physics; Ball, J.S. [Utah Univ., Salt Lake City, UT (United States). Dept. of Physics; Zachriasen, R. [California Inst. of Tech., Pasadena, CA (United States)

1991-12-31T23:59:59.000Z

307

Potential Benefits of Commissioning California Homes  

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

Potential Benefits of Commissioning California Homes Title Potential Benefits of Commissioning California Homes Publication Type Report LBNL Report Number LBNL-48258 Year of...

308

Research highlights potential for improved solar cells  

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

Potential for improved solar cells Research highlights potential for improved solar cells Research has shown that carrier multiplication is a real phenomenon in tiny semiconductor...

309

Cassava, a potential biofuel crop in China  

E-Print Network (OSTI)

Cassava, a potential biofuel crop in China Christer Janssoncassava; bioethanol; biofuel; metabolic engineering; Chinathe potentials of cassava in the biofuel sector and point to

Jansson, C.

2010-01-01T23:59:59.000Z

310

Tribal Renewable Energy Development Potential Webinar | Department...  

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

Tribal Renewable Energy Development Potential Webinar Tribal Renewable Energy Development Potential Webinar February 21, 2013 - 1:35pm Addthis Learn about opportunities for...

311

Analysis of the Quality of Information Obtained About Uterine Artery Embolization From the Internet  

SciTech Connect

Purpose: The Internet is widely used by patients to source health care-related information. We sought to analyse the quality of information available on the Internet about uterine artery embolization (UAE). Materials and Methods: We searched three major search engines for the phrase 'uterine artery embolization' and compiled the top 50 results from each engine. After excluding repeated sites, scientific articles, and links to documents, the remaining 50 sites were assessed using the LIDA instrument, which scores sites across the domains of accessibility, usability, and reliability. The Fleisch reading ease score (FRES) was calculated for each of the sites. Finally, we checked the country of origin and the presence of certification by the Health On the Net Foundation (HONcode) as well as their effect on LIDA and FRES scores.ResultsThe following mean scores were obtained: accessibility 48/60 (80%), usability 42/54 (77%), reliability 20/51 (39%), total LIDA 110/165 (67%), and FRES 42/100 (42%). Nine sites had HONcode certification, and this was associated with significantly greater (p < 0.05) reliability and total LIDA and FRES scores. When comparing sites between United Kingdom and United States, there was marked variation in the quality of results obtained when searching for information on UAE (p < 0.05). Conclusion: In general, sites were well designed and easy to use. However, many scored poorly on the reliability of their information either because they were produced in a non-evidence-based way or because they lacking currency. It is important that patients are guided to reputable, location-specific sources of information online, especially because prominent search engine rank does not guarantee reliability of information.

Tavare, Aniket N. [British Medical Association House, British Medical Journal Group (United Kingdom); Alsafi, Ali, E-mail: ali.alsafi03@imperial.ac.uk; Hamady, Mohamad S. [St. Mary's Hospital, Imaging Department (United Kingdom)

2012-12-15T23:59:59.000Z

312

Potential applications of nanostructured materials in nuclear waste management.  

Science Conference Proceedings (OSTI)

This report summarizes the results obtained from a Laboratory Directed Research & Development (LDRD) project entitled 'Investigation of Potential Applications of Self-Assembled Nanostructured Materials in Nuclear Waste Management'. The objectives of this project are to (1) provide a mechanistic understanding of the control of nanometer-scale structures on the ion sorption capability of materials and (2) develop appropriate engineering approaches to improving material properties based on such an understanding.

Braterman, Paul S. (The University of North Texas, Denton, TX); Phol, Phillip Isabio; Xu, Zhi-Ping (The University of North Texas, Denton, TX); Brinker, C. Jeffrey; Yang, Yi (University of New Mexico, Albuquerque, NM); Bryan, Charles R.; Yu, Kui; Xu, Huifang (University of New Mexico, Albuquerque, NM); Wang, Yifeng; Gao, Huizhen

2003-09-01T23:59:59.000Z

313

Scientific Potential of Einstein Telescope  

E-Print Network (OSTI)

Einstein gravitational-wave Telescope (ET) is a design study funded by the European Commission to explore the technological challenges of and scientific benefits from building a third generation gravitational wave detector. The three-year study, which concluded earlier this year, has formulated the conceptual design of an observatory that can support the implementation of new technology for the next two to three decades. The goal of this talk is to introduce the audience to the overall aims and objectives of the project and to enumerate ET's potential to influence our understanding of fundamental physics, astrophysics and cosmology.

B. Sathyaprakash; M. Abernathy; F. Acernese; P. Amaro-Seoane; N. Andersson; K. Arun; F. Barone; B. Barr; M. Barsuglia; M. Beker; N. Beveridge; S. Birindelli; S. Bose; L. Bosi; S. Braccini; C. Bradaschia; T. Bulik; E. Calloni; G. Cella; E. Chassande-Mottin; S. Chelkowski; A. Chincarini; J. Clark; E. Coccia; C. Colacino; J. Colas; A. Cumming; L. Cunningham; E. Cuoco; S. Danilishin; K. Danzmann; R. De. Salvo; T. Dent; R. De. Rosa; L. Di. Fiore; A. Di. Virgilio; M. Doets; V. Fafone; P. Falferi; R. Flaminio; J. Franc; F. Frasconi; A. Freise; D. Friedrich; P. Fulda; J. Gair; G. Gemme; E. Genin; A. Gennai; A. Giazotto; K. Glampedakis; C. Gräf; M. Granata; H. Grote; G. Guidi; A. Gurkovsky; G. Hammond; M. Hannam; J. Harms; D. Heinert; M. Hendry; I. Heng; E. Hennes; S. Hild; J. Hough; S. Husa; S. Huttner; G. Jones; F. Khalili; K. Kokeyama; K. Kokkotas; B. Krishnan; T. G. F. Li; M. Lorenzini; H. Lück; E. Majorana; I. Mandel; V. Mandic; M. Mantovani; I. Martin; C. Michel; Y. Minenkov; N. Morgado; S. Mosca; B. Mours; H. Müller-Ebhardt; P. Murray; R. Nawrodt; J. Nelson; R. Oshaughnessy; C. D. Ott; C. Palomba; A. Paoli; G. Parguez; A. Pasqualetti; R. Passaquieti; D. Passuello; L. Pinard; W. Plastino; R. Poggiani; P. Popolizio; M. Prato; M. Punturo; P. Puppo; D. Rabeling; I. Racz; P. Rapagnani; J. Read; T. Regimbau; H. Rehbein; S. Reid; L. Rezzolla; F. Ricci; F. Richard; A. Rocchi; S. Rowan; A. Rüdiger; L. Santamaria; B. Sassolas; R. Schnabel; C. Schwarz; P. Seidel; A. Sintes; K. Somiya; F. Speirits; K. Strain; S. Strigin; P. Sutton; S. Tarabrin; A. Thüring; J. van den Brand; M van Veggel; C. Van Den Broeck; A. Vecchio; J. Veitch; F. Vetrano; A. Vicere; S. Vyatchanin; B. Willke; G. Woan; K. Yamamoto

2011-08-05T23:59:59.000Z

314

Equivalence of Local Potential Approximations  

E-Print Network (OSTI)

In recent papers it has been noted that the local potential approximation of the Legendre and Wilson-Polchinski flow equations give, within numerical error, identical results for a range of exponents and Wilson-Fisher fixed points in three dimensions, providing a certain ``optimised'' cutoff is used for the Legendre flow equation. Here we point out that this is a consequence of an exact map between the two equations, which is nothing other than the exact reduction of the functional map that exists between the two exact renormalization groups. We note also that the optimised cutoff does not allow a derivative expansion beyond second order.

Tim R. Morris

2005-03-21T23:59:59.000Z

315

New oilseeds boast feedstock potential  

Science Conference Proceedings (OSTI)

Researchers in the United States are investigating the chemical potential of the Chinese tallow tree and the buffalo gourd. It is estimated that the Houston area of Texas could yield up to 70lb of seeds per tree per year. The oily component of the seed is recovered by solvent extraction and the product may some day compete with petroleum-based waxes or fats. In contrast to the Chinese tallow tree, which grows near swamps and marshes, the buffalo gourd is a desert plant. Experiments are underway aimed at improving the yield of the plant by hybridization and other genetic manipulations, and also to come up with an efficient harvesting technique.

Not Available

1982-03-24T23:59:59.000Z

316

A Mathematical Method for Exact Analytical Solution of the Schroedinger Equation with Non-central Potential  

Science Conference Proceedings (OSTI)

In this paper, we have studied the Schroedinger equation with central and non-central potential. We have solved the Schroedinger equation in spherical coordinate analytically by using supersymmetric and shape invariance methods. Then we have found the radial and angular parts of wavefunction. Finally the energy eigenvalues of the Schroedinger equation with non-central potential are obtained.

Shojaei, M. R.; Rajabi, A. A. [Department of physics, Shahrood University of Technology (Iran, Islamic Republic of); Momen, Y. [Department of physics, Payamnoor University of Fariman (Iran, Islamic Republic of)

2011-12-26T23:59:59.000Z

317

Scanning Surface Potential Microscopy of Spore Adhesion on Surfaces  

SciTech Connect

The adhesion of spores of Bacillus anthracis - the cause of anthrax and a likely biological threat - to solid surfaces is an important consideration in cleanup after an accidental or deliberate release. However, because of safety concerns, directly studying B. anthracis spores with advanced instrumentation is problematic. As a first step, we are examining the electrostatic potential of Bacillus thuringiensis (Bt), which is a closely related species that is often used as a simulant to study B. anthracis. Scanning surface potential microscopy (SSPM), also known as Kelvin probe force microscopy (KPFM), was used to investigate the influence of relative humidity (RH) on the surface electrostatic potential of Bt that had adhered to silica, mica, or gold substrates. AFM/SSPM side-by-side images were obtained separately in air, at various values of RH, after an aqueous droplet with spores was applied on each surface and allowed to dry before measurements. In the SSPM images, a negative potential on the surface of the spores was observed compared with that of the substrates. The surface potential decreased as the humidity increased. Spores were unable to adhere to a surface with an extremely negative potential, such as mica.

Lee, Ida [University of Tennessee, Knoxville (UTK); Chung, Eunhyea [Georgia Institute of Technology; Kweon, Hyojin [Georgia Institute of Technology; Yiacoumi, Sotira [Georgia Institute of Technology; Tsouris, Costas [ORNL

2012-01-01T23:59:59.000Z

318

Role of Diffusion-Weighted Magnetic Resonance Imaging in Predicting Sensitivity to Chemoradiotherapy in Muscle-Invasive Bladder Cancer  

Science Conference Proceedings (OSTI)

Purpose: In chemoradiation (CRT)-based bladder-sparing approaches for muscle invasive bladder cancer (MIBC), patients who respond favorably to induction CRT enjoy the benefits of bladder preservation, whereas nonresponders do not. Thus, accurate prediction of CRT sensitivity would optimize patient selection for bladder-sparing protocols. Diffusion-weighted MRI (DW-MRI) is a functional imaging technique that quantifies the diffusion of water molecules in a noninvasive manner. We investigated whether DW-MRI predicts CRT sensitivity of MIBC. Methods and Materials: The study cohort consisted of 23 MIBC patients (cT2/T3 = 7/16) who underwent induction CRT consisting of radiotherapy to the small pelvis (40 Gy) with two cycles of cisplatin (20 mg/day for 5 days), followed by partial or radical cystectomy. All patients underwent DW-MRI before the initiation of treatment. Associations of apparent diffusion coefficient (ADC) values with CRT sensitivity were analyzed. The proliferative potential of MIBC was also assessed by analyzing the Ki-67 labeling index (LI) in pretherapeutic biopsy specimens. Results: Thirteen patients (57%) achieved pathologic complete response (pCR) to CRT. These CRT-sensitive MIBCs showed significantly lower ADC values (median, 0.63 Multiplication-Sign 10{sup -3} mm{sup 2}/s; range, 0.43-0.77) than CRT-resistant (no pCR) MIBCs (median, 0.84 Multiplication-Sign 10{sup -3} mm{sup 2}/s; range, 0.69-1.09; p = 0.0003). Multivariate analysis identified ADC value as the only significant and independent predictor of CRT sensitivity (p < 0.0001; odds ratio per 0.001 Multiplication-Sign 10{sup -3} mm{sup 2}/s increase, 1.03; 95% confidence interval, 1.01-1.08). With a cutoff ADC value at 0.74 Multiplication-Sign 10{sup -3} mm{sup 2}/s, sensitivity/specificity/accuracy in predicting CRT sensitivity was 92/90/91%. Ki-67 LI was significantly higher in CRT-sensitive MIBCs (p = 0.0005) and significantly and inversely correlated with ADC values ({rho} = -0.67, p = 0.0007). Conclusions: DW-MRI is a potential biomarker for predicting CRT sensitivity in MIBC. DW-MRI may be useful to optimize patient selection for CRT-based bladder-sparing approaches.

Yoshida, Soichiro [Department of Urology, Tokyo Medical and Dental University Graduate School, Tokyo (Japan); Koga, Fumitaka, E-mail: f-koga.uro@tmd.ac.jp [Department of Urology, Tokyo Medical and Dental University Graduate School, Tokyo (Japan); Kobayashi, Shuichiro [Department of Urology, Tokyo Medical and Dental University Graduate School, Tokyo (Japan); Ishii, Chikako; Tanaka, Hiroshi [Department of Radiology, Ochanomizu Surugadai Clinic, Tokyo (Japan); Tanaka, Hajime; Komai, Yoshinobu; Saito, Kazutaka; Masuda, Hitoshi; Fujii, Yasuhisa; Kawakami, Satoru; Kihara, Kazunori [Department of Urology, Tokyo Medical and Dental University Graduate School, Tokyo (Japan)

2012-05-01T23:59:59.000Z

319

Spectral-domain phase microscopy with improved sensitivity using two-dimensional detector arrays  

Science Conference Proceedings (OSTI)

In this work we demonstrate the use of two-dimensional detectors to improve the signal-to-noise ratio (SNR) and sensitivity in spectral-domain phase microscopy for subnanometer accuracy measurements. We show that an increase in SNR can be obtained, from 82 dB to 105 dB, using 150 pixel lines of a low-cost CCD camera as compared to a single line, to compute an averaged axial scan. In optimal mechanical conditions, phase stability as small as 92 {mu}rad, corresponding to 6 pm displacement accuracy, could be obtained. We also experimentally demonstrate the benefit of spatial-averaging in terms of the reduction of signal fading due to an axially moving sample. The applications of the improved system are illustrated by imaging live cells in culture.

Singh, K.; Dion, C.; Ozaki, T. [Centre de Recherche, Hopital Maisonneuve-Rosemont, Montreal, Quebec (Canada); Institut National de la Recherche Scientifique, Energie, Materiaux et Telecommunications, Varennes, Quebec (Canada); Lesk, M. R. [Centre de Recherche, Hopital Maisonneuve-Rosemont, Montreal, Quebec (Canada); Departement d'Ophtalmologie, Universite de Montreal, Montreal, Quebec (Canada); Costantino, S. [Centre de Recherche, Hopital Maisonneuve-Rosemont, Montreal, Quebec (Canada); Departement d'Ophtalmologie, Universite de Montreal, Montreal, Quebec (Canada); Institut de Genie Biomedical, Universite de Montreal, Montreal, Quebec (Canada)

2011-02-15T23:59:59.000Z

320

Advancing the sensitivity of selected reaction monitoring-based targeted quantitative proteomics  

SciTech Connect

Selected reaction monitoring (SRM)—also known as multiple reaction monitoring (MRM)—has emerged as a promising high-throughput targeted protein quantification technology for candidate biomarker verification and systems biology applications. A major bottleneck for current SRM technology, however, is insufficient sensitivity for e.g., detecting low-abundance biomarkers likely present at the pg/mL to low ng/mL range in human blood plasma or serum, or extremely low-abundance signaling proteins in the cells or tissues. Herein we review recent advances in methods and technologies, including front-end immunoaffinity depletion, fractionation, selective enrichment of target proteins/peptides or their posttranslational modifications (PTMs), as well as advances in MS instrumentation, which have significantly enhanced the overall sensitivity of SRM assays and enabled the detection of low-abundance proteins at low to sub- ng/mL level in human blood plasma or serum. General perspectives on the potential of achieving sufficient sensitivity for detection of pg/mL level proteins in plasma are also discussed.

Shi, Tujin; Su, Dian; Liu, Tao; Tang, Keqi; Camp, David G.; Qian, Weijun; Smith, Richard D.

2012-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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
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321

THERMAL PERFORMANCE SENSITIVITY STUDIES IN SUPPORT OF MATERIAL MODELING FOR EXTENDED STORAGE OF USED NUCLEAR FUEL  

SciTech Connect

The work reported here is an investigation of the sensitivity of component temperatures of a storage system, including fuel cladding temperatures, in response to age-related changes that could degrade the design-basis thermal behavior of the system. Three specific areas of interest were identified for this study. • degradation of the canister backfill gas from pure helium to a mixture of air and helium, resulting from postulated leakage due to stress corrosion cracking (SCC) of canister welds • changes in surface emissivity of system components, resulting from corrosion or other aging mechanisms, which could cause potentially significant changes in temperatures and temperature distributions, due to the effect on thermal radiation exchange between components • changes in fuel and basket temperatures due to changes in fuel assembly position within the basket cells in the canister The purpose of these sensitivity studies is to provide a realistic example of how changes in the physical properties or configuration of the storage system components can affect temperatures and temperature distributions. The magnitudes of these sensitivities can provide guidance for identifying appropriate modeling assumptions for thermal evaluations extending long term storage out beyond 50, 100, 200, and 300 years.

Cuta, Judith M.; Suffield, Sarah R.; Fort, James A.; Adkins, Harold E.

2013-08-15T23:59:59.000Z

322

SENSITIVITY OF ASTROPHYSICAL REACTION RATES TO NUCLEAR UNCERTAINTIES  

Science Conference Proceedings (OSTI)

Sensitivities of nuclear reaction rates to a variation of nuclear properties are studied. Target nuclei range from proton- to neutron dripline for 10 {<=} Z {<=} 83. Reactions considered are nucleon- and {alpha}-induced reactions mediated by strong interaction. The contribution of reactions occurring on the target ground state to the total stellar rate is also given. General dependencies on various input quantities are discussed. Additionally, sensitivities of laboratory cross-sections of nucleon-, {alpha}-, and {gamma}-induced reactions are shown, allowing us to estimate the impact of cross-section measurements. Finally, recommended procedures to explore and improve reaction rate uncertainties using the present sensitivity data are outlined.

Rauscher, T. [Department of Physics, University of Basel, CH-4056 Basel (Switzerland)

2012-08-01T23:59:59.000Z

323

Equation of state at finite temperature and chemical potential, lattice QCD results  

E-Print Network (OSTI)

We present an N_t=4 lattice study for the equation of state of 2+1 flavour staggered, dynamical QCD at finite temperature and chemical potential. We use the overlap improving multi-parameter reweighting technique to extend the equation of state for non-vanishing chemical potentials. The results are obtained on the line of constant physics and our physical parameters extend in temperature and baryon chemical potential upto \\approx 500-600 MeV.

F. Csikor; G. I. Egri; Z. Fodor; S. D. Katz; K. K. Szabo; A. I. Toth

2004-01-09T23:59:59.000Z

324

Matrix elements of the Argonne v18 potential  

E-Print Network (OSTI)

We discuss two approaches to the calculation of matrix elements of the Argonne v18 potential. The first approach is applicable in the case of a single-particle basis of harmonic-oscillator wave functions. In this case we use the Talmi transformation, implemented numerically using the Moshinsky transformation brackets, to separate the center-of-mass and relative coordinates degrees of freedom. Integrals involving the radial part of the potential are performed using Gauss-Hermite quadrature formulas, and convergence is achieved for sets of at least 512 points. We validate the calculation of matrix elements of the Argonne v18 potential using a second approach suitable for the case of an arbitrary functional form of the single-particle wave functions. When the model space is represented in terms of harmonic-oscillator wave functions, results obtained using these two approaches are shown to to be identical within numerical accuracy.

Bogdan Mihaila

2011-11-17T23:59:59.000Z

325

Neutron scattering analysis with microscopic optical model potentials  

Science Conference Proceedings (OSTI)

A review of microscopic optical model potentials used in the analysis of neutron scattering and analyzing power data below 100 MeV (5 {le}E{sub n}{le}100 MeV) is presented. The quality of the fits to the data over a wide massd ({sup 6}Li-{sup 239}Pu) and energy range is discussed. It is shown that reasonably good agreement with the data is obtained with only three parameters, {lambda}{sub V}, {lambda}{sub W}, and {lambda}{sub SO}, which show a smooth mass and energy dependence. These parameters are normalizing constants to the real (V), and imaginary (W) central potentials and the real spin-orbit (V{sub SO}) potential. 14 refs., 7 figs.

Hansen, L.F.

1991-09-03T23:59:59.000Z

326

Electron reflection from one-dimensional potential barriers  

DOE Green Energy (OSTI)

This report summarizes the relevant experimental evidence for electron reflectivity effects in TEC and describes the analytical effort to better understand electron reflectivity as a function of the potential configuration of the surface layer. The analyses consider rectangular and triangular barrier models with, and without, image potentials. The calculated results are presented and discussed. Details of the solutions are given in Appendices A, B, and C. The computer programs to obtain these results are listed in Appendix D. These analyses demonstrate that cesium-oxygen composites with potential discontinuities around one volt and 20 A thick can be expected to be highly reflective to thermal electrons. Consequently, such composites would be expected to have significant effects on TEC performance.

Balestra, C.L.; Huffman, F.N.; Yang, C.C.

1978-09-01T23:59:59.000Z

327

Low noise charge sensitive preamplifier DC stabilized without a physical resistor  

DOE Patents (OSTI)

The invention is a novel charge sensitive preamplifier (CSP) which has no resistor in parallel with the feedback capacitor. No resetting circuit is required to discharge the feedback capacitor. The DC stabilization of the preamplifier is obtained by means of a second feedback loop between the preamplifier output and the common base transistor of the input cascode. The input transistor of the preamplifier is a Junction Field Transistor (JFET) with the gate-source junction forward biased. The detector leakage current flows into this junction. This invention is concerned with a new circuit configuration for a charge sensitive preamplifier and a novel use of the input Field Effect Transistor of the CSP itself. In particular this invention, in addition to eliminating the feedback resistor, eliminates the need for external devices between the detector and the preamplifier, and it eliminates the need for external circuitry to sense the output voltage and reset the CSP. Furthermore, the noise level of the novel CSP is very low, comparable with the performance achieved with other solutions. Experimental tests prove that this configuration for the charge sensitive preamplifier permits an excellent noise performance at temperatures including room temperature. An equivalent noise charge of less than 20 electrons r.m.s. has been measured at room temperature by using a commercial JFET as input device of the preamplifier.

Bertuccio, Giuseppe (Brianza, IT); Rehak, Pavel (Patchogue, NY); Xi, Deming (Beijing, CN)

1994-09-13T23:59:59.000Z

328

Low noise charge sensitive preamplifier DC stabilized without a physical resistor  

DOE Patents (OSTI)

The invention is a novel charge sensitive preamplifier (CSP) which has no resistor in parallel with the feedback capacitor. No resetting circuit is required to discharge the feedback capacitor. The DC stabilization of the preamplifier is obtained by means of a second feedback loop between the preamplifier output and the common base transistor of the input cascode. The input transistor of the preamplifier is a Junction Field Transistor (JFET) with the gate-source junction forward biased. The detector leakage current flows into this junction. This invention is concerned with a new circuit configuration for a charge sensitive preamplifier and a novel use of the input Field Effect Transistor of the CSP itself. In particular this invention, in addition to eliminating the feedback resistor, eliminates the need for external devices between the detector and the preamplifier, and it eliminates the need for external circuitry to sense the output voltage and reset the CSP. Furthermore, the noise level of the novel CSP is very low, comparable with the performance achieved with other solutions. Experimental tests prove that this configuration for the charge sensitive preamplifier permits an excellent noise performance at temperatures including room temperature. An equivalent noise charge of less than 20 electrons r.m.s. has been measured at room temperature by using a commercial JFET as input device of the preamplifier. 6 figs.

Bertuccio, G.; Rehak, P.; Xi, D.

1994-09-13T23:59:59.000Z

329

Obtaining the Probability Vector Current Density in Canonical Quantum Mechanics by Linear Superposition  

E-Print Network (OSTI)

The quantum mechanics status of the probability vector current density has long seemed to be marginal. On one hand no systematic prescription for its construction is provided, and the special examples of it that are obtained for particular types of Hamiltonian operator could conceivably be attributed to happenstance. On the other hand this concept's key physical interpretation as local average particle flux, which flows from the equation of continuity that it is supposed to satisfy in conjunction with the probability scalar density, has been claimed to breach the uncertainty principle. Given the dispiriting impact of that claim, we straightaway point out that the subtle directional nature of the uncertainty principle makes it consistent with the measurement of local average particle flux. We next focus on the fact that the unique closed-form linear-superposition quantization of any classical Hamiltonian function yields in tandem the corresponding unique linear-superposition closed-form divergence of the probability vector current density. Because the probability vector current density is linked to the quantum physics only through the occurrence of its divergence in the equation of continuity, it is theoretically most appropriate to construct this vector field exclusively from its divergence -- analysis of the best-known "textbook" special example of a probability vector current density shows that it is thus constructed. That special example in fact leads to the physically interesting "Ehrenfest subclass" of probability vector current densities, which are closely related to their classical peers.

Steven Kenneth Kauffmann

2013-02-02T23:59:59.000Z

330

Casingless down-hole for sealing an ablation volume and obtaining a sample for analysis  

DOE Patents (OSTI)

A casing-less down hole sampling system for acquiring a subsurface sample for analysis using an inductively coupled plasma system is disclosed. The system includes a probe which is pushed into the formation to be analyzed using a hydraulic ram system. The probe includes a detachable tip member which has a soil point and a barb, with the soil point aiding the penetration of the earth, and the barb causing the tip member to disengage from the probe and remain in the formation when the probe is pulled up. The probe is forced into the formation to be tested, and then pulled up slightly, to disengage the tip member and expose a column of the subsurface formation to be tested. An instrumentation tube mounted in the probe is then extended outward from the probe to longitudinally extend into the exposed column. A balloon seal mounted on the end of the instrumentation tube allows the bottom of the column to be sealed. A source of laser radiation is emitted from the instrumentation tube to ablate a sample from the exposed column. The instrumentation tube can be rotated in the probe to sweep the laser source across the surface of the exposed column. An aerosol transport system carries the ablated sample from the probe to the surface for testing in an inductively coupled plasma system. By testing at various levels in the down-hole as the probe is extracted from the soil, a profile of the subsurface formation may be obtained. 9 figs.

Noble, D.T.; Braymen, S.D.; Anderson, M.S.

1996-10-01T23:59:59.000Z

331

Casingless down-hole for sealing an ablation volume and obtaining a sample for analysis  

DOE Patents (OSTI)

A casing-less down hole sampling system for acquiring a subsurface sample for analysis using an inductively coupled plasma system is disclosed. The system includes a probe which is pushed into the formation to be analyzed using a hydraulic ram system. The probe includes a detachable tip member which has a soil point mad a barb, with the soil point aiding the penetration of the earth, and the barb causing the tip member to disengage from the probe and remain in the formation when the probe is pulled up. The probe is forced into the formation to be tested, and then pulled up slightly, to disengage the tip member and expose a column of the subsurface formation to be tested. An instrumentation tube mounted in the probe is then extended outward from the probe to longitudinally extend into the exposed column. A balloon seal mounted on the end of the instrumentation tube allows the bottom of the column to be sealed. A source of laser radiation is emitted from the instrumentation tube to ablate a sample from the exposed column. The instrumentation tube can be rotated in the probe to sweep the laser source across the surface of the exposed column. An aerosol transport system carries the ablated sample from the probe to the surface for testing in an inductively coupled plasma system. By testing at various levels in the down-hole as the probe is extracted from the soil, a profile of the subsurface formation may be obtained.

Noble, Donald T. (Ames, IA); Braymen, Steven D. (Ames, IA); Anderson, Marvin S. (Ames, IA)

1996-10-01T23:59:59.000Z

332

Publication and Protection of Sensitive Site Information in a Grid Infrastructure  

Science Conference Proceedings (OSTI)

In order to create a successful grid infrastructure, sites and resource providers must be able to publish information about their underlying resources and services. This information makes it easier for users and virtual organizations to make intelligent decisions about resource selection and scheduling, and can be used by the grid infrastructure for accounting and troubleshooting services. However, such an outbound stream may include data deemed sensitive by a resource-providing site, exposing potential security vulnerabilities or private user information to the world at large, including malicious entities. This study analyzes the various vectors of information being published from sites to grid infrastructures. In particular, it examines the data being published to, and collected by the Open Science Grid, including resource selection, monitoring, accounting, troubleshooting, logging and site verification data. We analyze the risks and potential threat models posed by the publication and collection of such data. We also offer some recommendations and best practices for sites and grid infrastructures to manage and protect sensitive data.

Cholia, Shreyas; Cholia, Shreyas; Porter, R. Jefferson

2008-03-31T23:59:59.000Z

333

Silane Modification of Glass and Silica Surfaces to Obtain Equally Oil-Wet Surfaces in Glass-Covered Silicon Micromodel Applications  

SciTech Connect

The wettability of silicon and glass surfaces can be modified by silanization. However, similar treatments of glass and silica surfaces using the same silane do not necessarily yield the same wettability as determined by the oil-water contact angle. In this technical note, surface cleaning pretreatments were investigated to determine conditions that would yield oil-wet surfaces on glass with similar wettability to silica surfaces treated with the same silane, and both air-water and oil-water contact angles were determined. Air-water contact angles were less sensitive to differences between silanized silica and glass surfaces, often yielding similar values while the oil-water contact angles were quite different. Borosilicate glass surfaces cleaned with standard cleaning solution 1 (SC1) yield intermediate-wet surfaces when silanized with hexamethyldisilazane, while the same cleaning and silanization yields oil-wet surfaces on silica. However, cleaning glass in boiling concentrated nitric acid creates a surface that can be silanized to obtain oil-wet surfaces using HDMS. Moreover, this method is effective on glass with prior thermal treatment at an elevated temperature of 400oC. In this way, silica and glass can be silanized to obtain equally oil-wet surfaces using HMDS. It is demonstrated that pretreatment and silanization is feasible in silicon-silica/glass micromodels previously assembled by anodic bonding, and that the change in wettability has a significant observable effect on immiscisble fluid displacements in the pore network.

Grate, Jay W.; Warner, Marvin G.; Pittman, Jonathan W.; Dehoff, Karl J.; Wietsma, Thomas W.; Zhang, Changyong; Oostrom, Martinus

2013-08-05T23:59:59.000Z

334

Semiconductor Nanoclusters as Potential Photocatalysts  

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

0001 0001 Transport and Kinetic Processes in GaN Epitaxial Lateral Overgrowth M. E. Coltrin and C. C. Mitchell Motivation-GaN is a wide band gap semi- conductor with a broad range of potential appli- cations, e.g., high-temperature electronics, op- telectronics, chemical or biological sensors. GaN thin films usually have a high defect den- sity, leading to poor performance. Epitaxial Lat- eral Overgrowth (ELO) has been shown to greatly reduce defect densities, often by factors of 100 or more. We are conducting fundamental studies of GaN growth kinetics during ELO. Accomplishment-In ELO, a mask pattern of dielectric material is deposited on top of a GaN buffer layer. Further growth of GaN occurs se- lectively on exposed areas of the underlying buffer layer, and not on the dielectric material.

335

Semiconductor Nanoclusters as Potential Photocatalysts  

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

High Power Electronics Based on the 2-Dimensional Electron Gas in GaN High Power Electronics Based on the 2-Dimensional Electron Gas in GaN Heterostructures by S. R. Kurtz, A. A. Allerman, and D. Koleski Motivation-GaN-based electronics offer miniaturization potential of radical proportions for microwave power amplifiers. GaN's large bandgap, high breakdown field, high electron velocity, and excellent thermal properties have led to high electron mobility transistors (HEMT) with up to 10x the power density of GaAs and other traditional semiconductors at frequencies up to 20 GHz. Further contributing to the outstanding performance of GaN-based amplifiers is the highly conducting, 2-dimensional electron gas (2DEG) used for the HEMT channel. Intrinsic polarization and piezoelectric properties of GaN materials can produce a 2DEG at an

336

1996 Residential Lighting Use and Potential Savings  

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

Administration Home Page Welcome to the Energy Information Administration's Residential Energy Consumption Home Page. If you need assistance in viewing this page, please call (202) 586-8800 Energy Information Administration Home Page Administration Home Page Welcome to the Energy Information Administration's Residential Energy Consumption Home Page. If you need assistance in viewing this page, please call (202) 586-8800 Energy Information Administration Home Page Home > Energy Users > Residential Home >1996 Lighting DOE/EIA-0555(96)/2 Distribution Category UC-950 Energy Consumption Series Residential Lighting Use and Potential Savings September 1996 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 Contacts This publication was prepared by the Energy Information Administration (EIA) under the general direction of W. Calvin Kilgore, Director of the Office of Energy Markets and End Use (202-586-1617). The project was directed by Lynda T. Carlson, Director of the Office of Energy End Use and Integrated Statistics Division (EEUISD) (202-586-1112). Specific technical information may be obtained from the Residential Energy Consumption Survey (RECS) Manager, Robert Latta (202-586-1385). The FAX number for all EEUISD personnel is 202-586-0018.

337

Thermal-Hydrological Sensitivity Analysis of Underground Coal Gasification  

DOE Green Energy (OSTI)

This paper presents recent work from an ongoing project at Lawrence Livermore National Laboratory (LLNL) to develop a set of predictive tools for cavity/combustion-zone growth and to gain quantitative understanding of the processes and conditions (natural and engineered) affecting underground coal gasification (UCG). We discuss the application of coupled thermal-hydrologic simulation capabilities required for predicting UCG cavity growth, as well as for predicting potential environmental consequences of UCG operations. Simulation of UCG cavity evolution involves coupled thermal-hydrological-chemical-mechanical (THCM) processes in the host coal and adjoining rockmass (cap and bedrock). To represent these processes, the NUFT (Nonisothermal Unsaturated-saturated Flow and Transport) code is being customized to address the influence of coal combustion on the heating of the host coal and adjoining rock mass, and the resulting thermal-hydrological response in the host coal/rock. As described in a companion paper (Morris et al. 2009), the ability to model the influence of mechanical processes (spallation and cavity collapse) on UCG cavity evolution is being developed at LLNL with the use of the LDEC (Livermore Distinct Element Code) code. A methodology is also being developed (Morris et al. 2009) to interface the results of the NUFT and LDEC codes to simulate the interaction of mechanical and thermal-hydrological behavior in the host coal/rock, which influences UCG cavity growth. Conditions in the UCG cavity and combustion zone are strongly influenced by water influx, which is controlled by permeability of the host coal/rock and the difference between hydrostatic and cavity pressure. In this paper, we focus on thermal-hydrological processes, examining the relationship between combustion-driven heat generation, convective and conductive heat flow, and water influx, and examine how the thermal and hydrologic properties of the host coal/rock influence those relationships. Specifically, we conducted a parameter sensitivity analysis of the influence of thermal and hydrological properties of the host coal, caprock, and bedrock on cavity temperature and steam production.

Buscheck, T A; Hao, Y; Morris, J P; Burton, E A

2009-10-05T23:59:59.000Z

338

The Sensitivity of Mountain Snowpack Accumulation to Climate Warming  

Science Conference Proceedings (OSTI)

Controls on the sensitivity of mountain snowpack accumulation to climate warming (?S) are investigated. This is accomplished using two idealized, physically based models of mountain snowfall to simulate snowpack accumulation for the Cascade ...

Justin R. Minder

2010-05-01T23:59:59.000Z

339

Climate Sensitivity to Continental Ice Sheet Size and Configuration  

Science Conference Proceedings (OSTI)

A version of the NCAR Community Climate Model (CCM) has been used to carry out a study of climate sensitivity to the size and distribution of continental ice sheets by comparing two perpetual season, fixed sea surface temperature (SST), winter ...

Richard A. Shinn; Eric J. Barron

1989-12-01T23:59:59.000Z

340

Sensitivity of 30-Day Dynamical Forecasts to Continental Snow cover  

Science Conference Proceedings (OSTI)

Several series of 30-day simulations with a global simulation model are used to evaluate the sensitivities to continental snow cover over North America and Eurasia. The model is initialized with National Meteorological Center analyses for ...

John E. Walsh; Becky Ross

1988-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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
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341

Sensitivity Studies on the Continentality of a Numerically Simulated Cumulonimbus  

Science Conference Proceedings (OSTI)

The cloud model of Tripoli and Cotton was used to simulate a cumulonimbus cloud observed during the Cooperative Convective Precipitation Experiment (CCOPE). We tested the sensitivity of the precipitation pathways in the model to the initial ...

R. Banta; K. R. Hanson

1987-02-01T23:59:59.000Z

342

Clock independent timing verification of level-sensitive latches  

Science Conference Proceedings (OSTI)

This paper presents a method to automatically handle level-sensitive latches in timing analysis/verification. Timing specifications, including delays and timing constraints, are automatically generated for the cells in the design. The generated timing ...

Robert Tjärnström

1991-02-01T23:59:59.000Z

343

Understanding the Chemistry of Dye Sensitized Solar Cells  

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

Understanding the Chemistry of Dye Sensitized Solar Cells Speaker(s): Brian O'Regan Date: January 15, 2009 (All day) Location: 90-3122 Seminar HostPoint of Contact: Michael G Apte...

344

Quantitative research and issues of political sensitivity in rural China  

E-Print Network (OSTI)

Political sensitivity is always a challenge for the scholar doing fieldwork in nondemocratic and transitional systems, especially when doing surveys and quantitative research. Not only are more research topics likely to ...

Tsai, Lily L.

345

Time-Varying Climate Sensitivity from Regional Feedbacks  

Science Conference Proceedings (OSTI)

The sensitivity of global climate with respect to forcing is generally described in terms of the global climate feedback—the global radiative response per degree of global annual mean surface temperature change. While the global climate feedback ...

Kyle C. Armour; Cecilia M. Bitz; Gerard H. Roe

2013-07-01T23:59:59.000Z

346

Method of constructing improved pressure-sensitive optrode  

DOE Patents (OSTI)

A method of making optrodes is provided by which a pressure-sensitive volume is incorporated in the optrode by bubble transfer and/or gas entrapment in the manufacturing step sequence. 10 figs.

Hirschfeld, T.B.

1988-11-15T23:59:59.000Z

347

Risk analysis and sensitivity analysis: antithesis or synthesis?  

Science Conference Proceedings (OSTI)

If a dynamic model assumes parameters constant over time, then the posterior mean (i.e. the mean conditional on specific values of these parameters) is relevant. Since parameters are unknown, they must be estimated. Sensitivity analysis quantifies the ...

Jack P. C. Kleijnen

1983-01-01T23:59:59.000Z

348

Sensitivity of Surface Solar Fluxes to Cloud Parameterization  

Science Conference Proceedings (OSTI)

Experiments were performed to examine the sensitivity of computed solar fluxes using a delta-Eddington model to recent parameterizations of cloud albedo of single scattering and asymmetry factor, In particular, the changes in the surface downward ...

J. A. Ewing; R. T. Pinker

1988-03-01T23:59:59.000Z

349

Fundamental studies of pH-sensitivity in polyelectrolyte multilayers  

E-Print Network (OSTI)

This thesis investigated the fundamental characteristics of the pH-sensitive behavior of weak polyelectrolytes, such as poly(acrylic acid)(PAA) and poly(allylamine hydrochloride) (PAH) from two perspectives of the assembled ...

Choi, Jeeyoung, 1974-

2004-01-01T23:59:59.000Z

350

Constraints on Climate Sensitivity from Radiation Patterns in Climate Models  

Science Conference Proceedings (OSTI)

The estimated range of climate sensitivity, the equilibrium warming resulting from a doubling of the atmospheric carbon dioxide concentration, has not decreased substantially in past decades. New statistical methods for estimating the climate ...

Markus Huber; Irina Mahlstein; Martin Wild; John Fasullo; Reto Knutti

2011-02-01T23:59:59.000Z

351

Sensitivity Analysis of Limit-Cycle Oscillating Hybrid Systems  

E-Print Network (OSTI)

A theory is developed for local, first-order sensitivity analysis of limit-cycle oscillating hybrid systems, which are dynamical systems exhibiting both continuous-state and discrete-state dynamics whose state trajectories ...

Khan, Kamil A.

352

Initial-Condition Sensitivities and the Predictability of Downslope Winds  

Science Conference Proceedings (OSTI)

The sensitivity of downslope wind forecasts to small changes in initial conditions is explored by using 70-member ensemble simulations of two prototypical windstorms observed during the Terrain-Induced Rotor Experiment (T-REX). The 10 weakest and ...

Patrick A. Reinecke; Dale R. Durran

2009-11-01T23:59:59.000Z

353

Sensitivity of Tropical Cyclone Forecasts as Revealed by Singular Vectors  

Science Conference Proceedings (OSTI)

Singular vector (SV) sensitivity, calculated using the adjoint model of the U.S. Navy Operation Global Atmosphere Prediction System (NOGAPS), is used to study the dynamics associated with tropical cyclone evolution. For each model-predicted ...

Melinda S. Peng; Carolyn A. Reynolds

2006-10-01T23:59:59.000Z

354

Sensitivity of Bow Echo Simulation to Microphysical Parameterizations  

Science Conference Proceedings (OSTI)

The sensitivity of a case study bow echo simulation to eight different microphysical schemes in the Weather Research and Forecasting model was tested, with a focus on graupel parameter characteristics. The graupel parameter in one scheme was ...

Rebecca D. Adams-Selin; Susan C. van den Heever; Richard H. Johnson

355

Sensitivity of Bow-Echo Simulation to Microphysical Parameterizations  

Science Conference Proceedings (OSTI)

The sensitivity of a case study bow-echo simulation to eight different microphysical schemes in the Weather Research and Forecasting model was tested, with a focus on graupel parameter characteristics. The graupel parameter in one scheme was ...

Rebecca D. Adams-Selin; Susan C. van den Heever; Richard H. Johnson

2013-10-01T23:59:59.000Z

356

U.S. Economic Sensitivity to Weather Variability  

Science Conference Proceedings (OSTI)

To estimate the economic effects of weather variability in the United States, the authors define and measure weather sensitivity as the variability in economic output that is attributable to weather variability, accounting for changes in technology and ...

Jeffrey K. Lazo; Megan Lawson; Peter H. Larsen; Donald M. Waldman

2011-06-01T23:59:59.000Z

357

Cost-sensitive classifier evaluation using cost curves  

Science Conference Proceedings (OSTI)

The evaluation of classifier performance in a cost-sensitive setting is straightforward if the operating conditions (misclassification costs and class distributions) are fixed and known. When this is not the case, evaluation requires a method of visualizing ...

Robert C. Holte; Chris Drummond

2008-05-01T23:59:59.000Z

358

Constraining Climate Sensitivity from the Seasonal Cycle in Surface Temperature  

Science Conference Proceedings (OSTI)

The estimated range of climate sensitivity has remained unchanged for decades, resulting in large uncertainties in long-term projections of future climate under increased greenhouse gas concentrations. Here the multi-thousand-member ensemble of ...

Reto Knutti; Gerald A. Meehl; Myles R. Allen; David A. Stainforth

2006-09-01T23:59:59.000Z

359

Sensitivity of Runoff to Climate Change: A Hortonian Approach  

Science Conference Proceedings (OSTI)

This Horton Memorial Lecture reviews the approach of Robert Horton (1875–1945) to key problems in hydrology, meteorology, and geography and then speculates on how Horton might today approach the problem of analyzing the sensitivity of catchment ...

James C. I. Dooge

1992-12-01T23:59:59.000Z

360

Hydrogen Transition Sensitivity Studies using H2Sim  

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

* City of Choice: Los Angeles * DOE LA Demand Scenario - LA Scenario 1 is baseline (Scenario 2 examined in sensitivity analysis) - Curve has Vehicle Penetration of 5.8% in 10...

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Influence of Ocean and Atmosphere Components on Simulated Climate Sensitivities  

Science Conference Proceedings (OSTI)

The influence of alternative ocean and atmosphere subcomponents on climate model simulation of transient sensitivities is examined by comparing three GFDL climate models used for phase 5 of the Coupled Model Intercomparison Project (CMIP5). The ...

Michael Winton; Alistair Adcroft; Stephen M. Griffies; Robert W. Hallberg; Larry W. Horowitz; Ronald J. Stouffer

2013-01-01T23:59:59.000Z

362

Parameter inference of cost-sensitive boosting algorithms  

Science Conference Proceedings (OSTI)

Several cost-sensitive boosting algorithms have been reported as effective methods in dealing with class imbalance problem. Misclassification costs, which reflect the different level of class identification importance, are integrated into the weight ...

Yanmin Sun; A. K. C. Wong; Yang Wang

2005-07-01T23:59:59.000Z

363

Sensitivity analysis of reactivity responses using one-dimensional discrete ordinates and three-dimensional Monte Carlo methods  

SciTech Connect

The TSUNAMI computational sequences currently in the SCALE 5 code system provide an automated approach to performing sensitivity and uncertainty analysis for eigenvalue responses, using either one-dimensional discrete ordinates or three-dimensional Monte Carlo methods. This capability has recently been expanded to address eigenvalue-difference responses such as reactivity changes. This paper describes the methodology and presents results obtained for an example advanced CANDU reactor design. (authors)

Williams, M. L.; Gehin, J. C.; Clarno, K. T. [Oak Ridge National Laboratory, Bldg. 5700, P.O. Box 2008, Oak Ridge, TN 37831-6170 (United States)

2006-07-01T23:59:59.000Z

364

Heat capacity, time constant, and sensitivity of Earth’s climate system  

E-Print Network (OSTI)

[1] The equilibrium sensitivity of Earth’s climate is determined as the quotient of the relaxation time constant of the system and the pertinent global heat capacity. The heat capacity of the global ocean, obtained from regression of ocean heat content versus global mean surface temperature, GMST, is 14 ± 6 W a m 2 K 1, equivalent to 110 m of ocean water; other sinks raise the effective planetary heat capacity to 17 ± 7 W a m 2 K 1 (all uncertainties are 1-sigma estimates). The time constant pertinent to changes in GMST is determined from autocorrelation of that quantity over 1880–2004 to be 5 ± 1 a. The resultant equilibrium climate sensitivity, 0.30 ± 0.14 K/(W m 2), corresponds to an equilibrium temperature increase for doubled CO2 of 1.1 ± 0.5 K. The short time constant implies that GMST is in near equilibrium with applied forcings and hence that net climate forcing over the twentieth century can be obtained from the observed temperature increase over this period, 0.57 ± 0.08 K, as 1.9 ± 0.9 W m 2. For this forcing considered the sum of radiative forcing by incremental greenhouse gases, 2.2 ± 0.3 W m 2, and other forcings, other forcing agents, mainly incremental tropospheric aerosols, are inferred to have exerted only a slight forcing over the twentieth century of 0.3 ± 1.0 W m 2.

Stephen E. Schwartz

2007-01-01T23:59:59.000Z

365

A Numerical Sensitivity Study of Aerosol Influence on Immersion Freezing  

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

Numerical Sensitivity Study of Aerosol Influence on Immersion Freezing Numerical Sensitivity Study of Aerosol Influence on Immersion Freezing in Mixed-Phase Stratiform Clouds Gijs de Boer, Tempei Hashino, Edwin W. Eloranta and Gregory J. Tripoli The University of Wisconsin - Madison (1) Introduction (1) Introduction Mixed-phase stratiform clouds are commonly observed at high latitudes (Shupe et al., 2006; de Boer et al., 2009a). These clouds significaly impact the atmospheric radiative

366

Sensitivity in X-ray grating interferometry on compact systems  

SciTech Connect

The optimization of compact X-ray grating interferometry systems is crucial for the progress of this technique in industrial devices. Here, an analytical formulation for the sensitivity of the phase contrast image acquisition is derived using previous results from noise analyses. Furthermore, experimental measurements of the sensitivity for different configurations are compared, providing further insight into the dependence on polychromatic radiation. Finally, strategies for the geometrical optimization are given.

Thuering, Thomas; Modregger, Peter; Haemmerle, Stefan; Weiss, Stephan; Nueesch, Joachim; Stampanoni, Marco [Swiss Light Source, Paul Scherrer Institut, Villigen PSI (Switzerland) and Institute for Biomedical Engineering, Swiss Federal Institute of Technology, Zurich (Switzerland); School of Biology and Medicine, University of Lausanne, Lausanne (Switzerland); SCANCO Medical AG, Bruettisellen (Switzerland)

2012-07-31T23:59:59.000Z

367

Acquisition and reduction of data obtained from Tank 101-SY in-situ ball rheometer  

DOE Green Energy (OSTI)

Development of the ball rheometer to measure rheological properties and density of the waste in Hanford Tank 241-SY-101 will be completed around September 1994. Since the ball rheometer project began, a mixer pump has been installed in this tank, and by all accounts this pump has been very successful at mitigating the flammable gas problem associated with Tank 101-SY. Present plans now call for the use of mixer pumps in several other tanks. The ball rheometer will serve as a diagnostic tool for judging the effectiveness of mixing in Tank 101-SY and others and will be one of few in-situ probes available for diagnostic measurements. The in-situ data collection strategy and the methods of data analysis and reduction are presented in this final report concerning this instrument. It is believed that a generalized Bingham fluid model (Herschel-Bulkley fluid model) may be useful for describing at least some of the waste contained in Tank 101-SY, and data obtained in the tank will initially be reduced using this fluid model. The single largest uncertainty in the determination of the drag force on the ball is the drag force which will be experienced by the cable attached to the ball. This drag can be a substantial fraction of the total drag when the ball is deep within the tank. Careful accounting of the cable drag will be important in the reduction of the data. The data collection strategy allows the determination of the waste fluid rheology both in the undisturbed state and after it has been disturbed by the ball. Fluid density will be measured at regular intervals.

Shepard, C.L.; Chieda, M.A.; Kirihara, L.J. [and others

1994-12-01T23:59:59.000Z

368

Assessment of national systems for obtaining local acceptance of waste management siting and routing activities  

SciTech Connect

There is a rich mixture of formal and informal approaches being used in our sister nuclear democracies in their attempts to deal with the difficulties of obtaining local acceptance for siting of waste management facilities and activities. Some of these are meeting with a degree of success not yet achieved in the US. Although this survey documents and assesses many of these approaches, time did not permit addressing in any detail their relevance to common problems in the US. It would appear the US could benefit from a periodic review of the successes and failures of these efforts, including analysis of their applicability to the US system. Of those countries (Germany, Sweden, Switzerland, Japan, Belgium, and the US) who are working to a time table for the preparation of a high-level waste (HLW) repository, Germany is the only country to have gained local siting acceptance for theirs. With this (the most difficult of siting problems) behind them they appear to be in the best overall condition relative to waste management progress and plans. This has been achieved without a particularly favorable political structure, made up for by determination on the part of the political leadership. Of the remaining three countries studied (France, UK and Canada) France, with its AVM production facility, is clearly the world leader in the HLW immobilization aspect of waste management. France, Belgium and the UK appear to have the least favorable political structures and environments for arriving at waste management decisions. US, Switzerland and Canada appear to have the least favorable political structures and environments for arriving at waste management decisions.

Paige, H.W.; Lipman, D.S.; Owens, J.E.

1980-07-01T23:59:59.000Z

369

Position-sensitive detector for the 6-meter optical telescope  

E-Print Network (OSTI)

The Position-Sensitive Detector (PSD) for photometrical and spectral observation on the 6-meter optical telescope of the Special Astrophysical Observatory (Russia) is described. The PSD consists of a position-sensitive tube, amplifiers of output signals, analog-to-digital converters (ADC) and a digital logic plate, which produces a signal for ADC start and an external strob pulse for reading information by registration system. If necessary, the thermoelectric cooler can be used. The position-sensitive tube has the following main elements: a photocathode, electrodes of inverting optics, a block of microchannel plates (MCP) and a position-sensitive collector of quadrant type. The main parameters of the PSD are the diameter of the sensitive surface is 25 mm, the spatial resolution is better than 100 (\\mu)m in the centre and a little worse on the periphery; the dead time is near 0.5 (\\mu)s; the detection quantum efficiency is defined by the photocathode and it is not less than 0.1, as a rule; dark current is about hundreds of cps, or less, when cooling. PSD spectral sensitivity depends on the type of photocathode and input window material. We use a multialkali photocathode and a fiber or UV-glass, which gives the short- wave cut of 360 nm or 250 nm, respectively.

V. Debur; T. Arkhipova; G. Beskin; V. Plokhotnichenko; M. Pakhomov; M. Smirnova; A. Solin

2003-10-14T23:59:59.000Z

370

Structural sensitivity studies of ethylene hydrogenation on platinum and rhodium surfaces  

DOE Green Energy (OSTI)

The catalytic hydrogenation of ethylene and hydrogen on the well characterized surfaces of the noble metals platinum and rhodium has been studied for the purposes of determining the relative activity of these two substrates as well as the degree of structure sensitivity. The Pt(111) and the Rh(755) single crystal surfaces,as well as Pt and Rh foils, were employed as substrates to study the effect of surface step structure on reactivity. In addition, vibrational spectroscopy studies were performed for ethylene adsorption on the stepped Rh(755) surface. The catalytic reaction were obtained using a combined ultrahigh vacuum chamber coupled with an atmospheric pressure reaction chamber that functioned as a batch reactor. Samples could be prepared using standard surface science techniques and characterized for surface composition and geometry using Auger Electron Spectroscopy and Low Energy Electron Diffraction. A comparison of the reactivity of Rh(111) with the results from this study on Rh(755) allows a direct determination of the effect of step structure on ethylene hydrogenation activity. Structure sensitivity is expected to exhibit orders of magnitude differences in rate as surface orientation is varied. In this case, no significant differences were found, confirming the structure insensitivity of this reaction over this metal. The turnover frequency of the Rh(111) surface, 5 {times} 10{sup 1} s{sup {minus}1}, is in relatively good agreement with the turnover frequency of 9 {times} 10{sup 1} s{sup {minus}1} measured for the Rh(755) surface. Rate measurements made on the Pt(111) surface and the Pt foil are in excellent agreement, both measuring 3 {times} 10{sup 2} s{sup minus}1. Likewise, it is concluded that no strong structure sensitivity for the platinum surfaces exists. High Resolution Electron Energy Loss Spectroscopy studies of adsorbed ethylene on the Rh(755) surface compare favorably with the ethylidyne spectra obtained on the Rh(111) and Rh(100) surfaces.

Quinlan, M.A. [California Univ., Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley National Lab., CA (United States)

1996-01-01T23:59:59.000Z

371

Computational Fluid Dynamics Based Investigation of Sensitivity of Furnace Operational Conditions to Burner Flow Controls  

SciTech Connect

This is the Final Technical Report for DOE Cooperative Agreement No: DE-FC26-02NT41580. The goal of this project was to systematically assess the sensitivity of furnace operational conditions to burner air and fuel flows in coal fired utility boilers. The focus of this project was to quantify the potential impacts of ''fine level'' controls rather than that of ''coarse level'' controls (i.e. combustion tuning). Although it is well accepted that combustion tuning will generally improve efficiency and emissions of an ''out of tune'' boiler, it is not as well understood what benefits can be derived through active multiburner measurement and control systems in boiler that has coarse level controls. The approach used here was to utilize existing baseline furnace models that have been constructed using Reaction Engineering International's (REI) computational fluid dynamics (CFD) software. Using CFD analyses provides the ability to carry out a carefully controlled virtual experiment to characterize the sensitivity of NOx emissions, unburned carbon (UBC), furnace exit CO (FECO), furnace exit temperature (FEGT), and waterwall deposition to burner air and fuel flow rates. The Electric Power Research Institute (EPRI) provided co-funding for this program, and instrument and controls experts from EPRI's Instrument and Controls (I&C) Center have been active participants in this project. CFD simulations were completed for five coal fired boilers as planned: (1) 150 MW wall fired, (2) 500 MW opposed wall fired, (3) 600 MW T-Fired, (4) 330 MW cyclone-fired, and (5) 200 MW T-Fired Twin Furnace. In all cases, the unit selections were made in order to represent units that were descriptive of the utility industry as a whole. For each unit, between 25 and 44 furnace simulations were completed in order to evaluate impacts of burner to burner variations in: (1) coal and primary air flow rate, and (2) secondary air flow rate. The parametric matrices of cases that were completed were defined in order to accommodate sensitivity analyses of the results. The sensitivity analyses provide a strategy for quantifying the rate of change of NOx or unburned carbon in the fly ash to a rate of change in secondary air or fuel or stoichiometric ratio for individual burners or groups of burners in order to assess the value associated with individual burner flow control. In addition, the sensitivity coefficients that were produced provide a basis for quantifying the differences in sensitivities for the different boiler types. In a ranking of the sensitivity of NOx emissions to variations in secondary air flow between the burners at a fixed lower furnace stoichiometric ratio in order of least sensitive to most sensitive, the results were: (1) 600 MW T-Fired Unit; (2) 500 MW Opposed Wall-Fired Unit; (3) 150 MW Wall-Fired Unit; (4) 100 MW T-Fired Unit; and (5) 330 MW Cyclone-Fired Unit.

Marc Cremer; Dave Wang; Connie Senior; Andrew Chiodo; Steven Hardy; Paul Wolff

2005-07-01T23:59:59.000Z

372

Split kinetic energy method for quantum systems with competing potentials  

SciTech Connect

For quantum systems with competing potentials, the conventional perturbation theory often yields an asymptotic series and the subsequent numerical outcome becomes uncertain. To tackle such a kind of problems, we develop a general solution scheme based on a new energy dissection idea. Instead of dividing the potential energy into 'unperturbed' and 'perturbed' terms, a partition of the kinetic energy is performed. By distributing the kinetic energy term in part into each individual potential, the Hamiltonian can be expressed as the sum of the subsystem Hamiltonians with respective competing potentials. The total wavefunction is expanded by using a linear combination of the basis sets of respective subsystem Hamiltonians. We first illustrate the solution procedure using a simple system consisting of a particle under the action of double {delta}-function potentials. Next, this method is applied to the prototype systems of a charged harmonic oscillator in strong magnetic field and the hydrogen molecule ion. Compared with the usual perturbation approach, this new scheme converges much faster to the exact solutions for both eigenvalues and eigenfunctions. When properly extended, this new solution scheme can be very useful for dealing with strongly coupling quantum systems. - Highlights: Black-Right-Pointing-Pointer A new basis set expansion method is proposed. Black-Right-Pointing-Pointer Split kinetic energy method is proposed to solve quantum eigenvalue problems. Black-Right-Pointing-Pointer Significant improvement has been obtained in converging to exact results. Black-Right-Pointing-Pointer Extension of such methods is promising and discussed.

Mineo, H.; Chao, Sheng D., E-mail: sdchao@spring.iam.ntu.edu.tw

2012-09-15T23:59:59.000Z

373

The potential of renewable energy  

DOE Green Energy (OSTI)

On June 27 and 28, 1989, the US Department of Energy (DOE) national laboratories were convened to discuss plans for the development of a National Energy Strategy (NES) and, in particular, the analytic needs in support of NES that could be addressed by the laboratories. As a result of that meeting, interlaboratory teams were formed to produce analytic white papers on key topics, and a lead laboratory was designated for each core laboratory team. The broad-ranging renewables assignment is summarized by the following issue statement from the Office of Policy, Planning and Analysis: to what extent can renewable energy technologies contribute to diversifying sources of energy supply What are the major barriers to greater renewable energy use and what is the potential timing of widespread commercialization for various categories of applications This report presents the results of the intensive activity initiated by the June 1989 meeting to produce a white paper on renewable energy. Scores of scientists, analysts, and engineers in the five core laboratories gave generously of their time over the past eight months to produce this document. Their generous, constructive efforts are hereby gratefully acknowledged. 126 refs., 44 figs., 32 tabs.

Not Available

1990-03-01T23:59:59.000Z

374

Parameterization of ice cloud radiative properties and its application to the potential climatic importance of mixed-phase clouds  

SciTech Connect

It is often assumed, in modeling and radiation budget simulation, that clouds below the cirrus level are entirely in the liquid phase. There is substantive evidence from observations that low and middle clouds are often of mixed phase. Using a light-scattering program for hexagonal crystals, the authors update a parameterization of the radiative properties of ice clouds from an earlier study and use the new parameterization to investigate the role of mixed-phase clouds in three areas: (i) the interpretation of ISCCP optical depth, (ii) the simulation of the earth radiation budget, and (iii) the sensitivity of a simple radiative-convective model to an increase in CO{sub 2}. In all cases, mixed-phase clouds are shown to have the potential to significantly modify the results obtained using liquid phase clouds. A precise quantification is not yet possible as the dependence of the fraction of ice and liquid water is mixed-phase clouds on atmospheric properties, and the way in which the ice and liquid water are mixed, are not known with sufficient detail. 43 refs., 17 figs., 2 tabs.

Sun, Z.; Shine, K.P. [Univ. of Reading (United Kingdom)] [Univ. of Reading (United Kingdom)

1995-07-01T23:59:59.000Z

375

Double complex SUSY-transformations: deformations of real potentials and their spectral characteristics  

E-Print Network (OSTI)

In paper approach of double complex SUSY-transformations with not coincident complex energies of transformation is developed, allowing to deform given real potential $V_{1}$ with obtaining exact solutions. The explicit solutions of the deformation of shape of the potential, its wave function at arbitrary energy, not coincident with energies of transformation, wave functions at the energies of transformation are obtained, condition of keeping of continuity of the solutions and isospectral condition are determined. Using a rectangular well of finite width with infinitely high walls as the starting $V_{1}$ with discrete energy spectrum, by the proposed approach new types of deformation of this potential with deformation of the energy spectrum as a whole have been obtained. The new potential contains the rectangular well as own partial case (with simultaneous transformation of the shape of this new potential, energy spectrum, wave functions of all bound states, wave function at arbitrary energy into corresponding characteristics of the rectangular well at needed choice of parameters). Using null potential as the starting $V_{1}$ with continuous energy spectrum, new form of reflectionless real potential has been constructed. This potential generalizes well-known reflectionless potential of the type $V_{\\rm ref}(x) = A^{2}(1-2 {\\rm sech}^{2}{Ax})$, allowing: to pull down tails of the potential $V_{\\rm ref}$ in the asymptotic regions up to zero (with keeping of nonzero depth); to pull down continuously the depth of the hole; to displace arbitrary along axis $x$ the hole with its passing through zero; to create and to increase the second hole, transforming $V_{\\rm ref}$ into double-well potential; to control continuously and simply the asymmetry of the shape of such reflectionless potential.

Sergei P. Maydanyuk

2007-10-22T23:59:59.000Z

376

s-wave repulsion in the pion-nucleus optical potential and the subthreshold pion-nucleonT matrix  

SciTech Connect

A covariant theory of the pion-nucleus interaction has been used to calculate off-shell matrix elements of the first-order pion-nucleus optical potential in momentum space. The matrix elements are calculated for /sup 16/O and /sup 40/Ca, as a function of k, the momentum in the ..pi..-nucleus center-of-mass system, for W = m/sub ..pi../+M/sub N/. (As in our previous studies we have carried out a full integration over the Fermi motion of the target nucleons. Off-shell effects related to nuclear binding are treated carefully.) As this calculation is sensitively dependent upon the subthreshold ..pi..N T matrix, two different models for the T matrix are studied. One is the well known separable model of Londergan, McVoy, and Moniz. The second model includes terms describing the direct and crossed Born terms and therefore has the appropriate s- and u-channel nucleon poles. (In the calculations using this model both the pion and the nucleon are allowed to go off the mass shell.) The remaining part of the amplitude in the second model is represented by a separable form. For small k, the matrix elements of the optical potential calculated with these two models are significantly larger than those obtained when use is made of the fixed-scatterer approximation. Phenomenological optical potentials which describe low-energy pion-nucleus scattering data or pionic-atom data exhibit s-wave repulsion which is about 2--8 times that obtained from calculations made in the fixed-scatterer approximation. (The uncertainty in this enhancement factor reflects the uncertainty in the free-space values of the ..pi..N scattering lengths). We conclude that the explanation of a significant fraction of the s-wave repulsion in the low energy pion-nucleus interaction may lie in a careful treatment of off-shell effects using a good model for the subthreshold ..pi..N T matrix.

Bhalerao, R.S.; Shakin, C.M.

1981-05-01T23:59:59.000Z

377

Analysis of Alternate Methods to Obtain Stabilized Power Performance of CdTe and CIGS PV Modules (Presentation)  

DOE Green Energy (OSTI)

This presentation outlines an analysis of alternate methods to obtain stabilized power performance of CdTe and CIGS PV modules.

del Cueto, J. A.; Deline, C. A.; Rummel, S.

2011-02-01T23:59:59.000Z

378

Psychological correlates of the UFO abduction experience : the role of beliefs and indirect suggestions on abduction accounts obtained during hypnosis.  

E-Print Network (OSTI)

??Reports of UFO abductions continue to increase in number in North America, the details of which are most commonly obtained in a quasi-therapeutic context, often… (more)

Day, Duncan J.A

1998-01-01T23:59:59.000Z

379

Evaluating the ignition sensitivity of thermal battery heat pellets  

DOE Green Energy (OSTI)

Thermal batteries are activated by the ignition of heat pellets. If the heat pellets are not sensitive enough to the ignition stimulus, the thermal battery will not activate, resulting in a dud. Thus, to assure reliable thermal batteries, it is important to demonstrate that the pellets have satisfactory ignition sensitivity by testing a number of specimens. There are a number of statistical methods for evaluating the sensitivity of a device to some stimulus. Generally, these methods are applicable to the situation in which a single test is destructive to the specimen being tested, independent of the outcome of the test. In the case of thermal battery heat pellets, however, tests that result in a nonresponse do not totally degrade the specimen. This peculiarity provides opportunities to efficiently evaluate the ignition sensitivity of heat pellets. In this paper, a simple strategy for evaluating heat pellet ignition sensitivity (including experimental design and data analysis) is described. The relatively good asymptotic and small-sample efficiencies of this strategy are demonstrated.

Thomas, E.V.

1993-09-01T23:59:59.000Z

380

Potential Vorticity in a Moist Atmosphere  

Science Conference Proceedings (OSTI)

The potential vorticity principle for a nonhydrostatic, moist, precipitating atmosphere is derived. An appropriate generalization of the well-known (dry) Ertel potential vorticity is found to be P = ??1(2? + × u)?·???, where ? is the total ...

Wayne H. Schubert; Scott A. Hausman; Matthew Garcia; Katsuyuki V. Ooyama; Hung-Chi Kuo

2001-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Potential Vorticity Anomalies Associated with Squall Lines  

Science Conference Proceedings (OSTI)

This study involves observations and model simulations of potential vorticity anomalies in the wake of midlatitude squall lines. Using data from the Oklahoma–Kansas PRE-STORM experiment, we analyze potential vorticity fields near two squall lines—...

Rolf F. A. Hertenstein; Wayne H. Schubert

1991-07-01T23:59:59.000Z

382

An Alternative Form for Potential Vorticity  

Science Conference Proceedings (OSTI)

A form of potential vorticity is described that has conservation properties similar to those of Ertel's potential vorticity (EPV) but removes the exponential variation with height displayed by EPV. This form is thus more suitable for inspecting ...

Leslie R. Lait

1994-06-01T23:59:59.000Z

383

Available Potential Energy for MODE Eddies  

Science Conference Proceedings (OSTI)

Available, potential energy (APE) is defined as the difference between total potential plus internal energy of a fluid in a gravity field and a corresponding reference field in which the fluid is redistributed (leveled) adiabatically to have ...

N. A. Bray; N. P. Fofonoff

1981-01-01T23:59:59.000Z

384

Potential Vorticity Distribution in the North Pacific  

Science Conference Proceedings (OSTI)

Vertical sections and maps of potential vorticity ??1f??/?z for the North Pacific are presented. On shallow isopycnals, high potential vorticity is found in the tropics, subpolar gyre, and along the eastern boundary of the subtropical gyre, all ...

Lynne D. Talley

1988-01-01T23:59:59.000Z

385

A quantized frequency reference in the short-ranged gravity potential and its application for dark matter and dark energy searches  

E-Print Network (OSTI)

The evidence for the observation of the Higgs spin-0-boson as a manifestation of a scalar field provides the missing corner stone for the standard model of particles (SM). However, the SM fails to explain the non-visible but gravitationally active part of the universe. Its nature is unknown but the confirmation of a scalar Higgs is giving a boost to scalar-field-theories. So far gravity experiments and observations performed at different distances find no deviation from Newton's gravity law. Therefore dark energy must possess a screening mechanism which suppresses the scalar-mediated fifth force. Our line of attack is a novel gravity experiment with neutrons based on a quantum interference technique. The spectroscopic measurement of quantum states on resonances with an external coupling makes this a powerful search for dark matter and dark energy contributions in the universe. Quantum states in the gravity potential are intimately related to other scalar field or spin-0-bosons if they exist. If the reason is that some undiscovered particle interact with a neutron, this results in a measurable energy shift of quantum states in the gravity potential, because for neutrons the screening effect is absent. We use Gravity Resonance Spectroscopy to measure the energy splitting at the highest level of precision, providing a constraint on any possible new interaction. We obtain a sensitivity of 10^-14 eV. We set an experimental limit on any fifth force, in particular on parameter \\betagravity is understood at this improved level of precision.

T. Jenke; G. Cronenberg; P. Geltenbort; A. N. Ivanov; T. Lauer; T. Lins; U. Schmidt; H. Saul; H. Abele

2012-08-19T23:59:59.000Z

386

Potential Peak Load Reductions From Residential Energy Efficient Upgrades  

E-Print Network (OSTI)

The demand for electricity is continuing to grow at a substantial rate. Utilities are interested in managing this growth's peak demand for a number of reasons including: costly construction of new generation capacity can be deferred; the reliability of the distribution network can be improved; and added environmental pollution can be minimized. Energy efficiency improvements, especially through residential programs, are increasingly being used to mitigate this rise in peak demand. This paper examines the potential peak load reductions from residential energy efficiency upgrades in hot and humid climates. First, a baseline scenario is established. Then, the demand and consumption impacts of individual upgrade measures are assessed. Several of these upgrades are then combined into a package to assess the synergistic demand and energy impacts. A sensitivity analysis is then performed to assess the impacts of housing characteristics on estimated demand and energy savings. Finally, the demand, energy, and environmental impacts are estimated at the community level.

Meisegeier, D.; Howes, M.; King, D.; Hall, J.

2002-01-01T23:59:59.000Z

387

Modelling Carbon with Transferable Empirical Potentials  

Science Conference Proceedings (OSTI)

Complexities associated with hybridization and anisotropy meant that transferable potentials for carbon were slow to emerge, lagging decades behind similar ...

388

Potential for Biofuels from Algae (Presentation)  

DOE Green Energy (OSTI)

Presentation on the potential for biofuels from algae presented at the 2007 Algae Biomass Summit in San Francisco, CA.

Pienkos, P. T.

2007-11-15T23:59:59.000Z

389

Visualizing Motion in Potential Wells* Pratibha Jolly  

E-Print Network (OSTI)

1 Visualizing Motion in Potential Wells* Pratibha Jolly Department of Physics, University of Delhi well potential diagrams using either the velocity data and assuming conservation of energy or the force wells on the one hand and establishing the relationship between the operative forces and the potential

Zollman, Dean

390

Before Getting There: Potential and Actual Collaboration  

Science Conference Proceedings (OSTI)

In this paper we introduce the concepts of Actual and Potential Collaboration Spaces. The former applies to the space where collaborative activities are performed, while the second relates to the initial space where opportunities for collaboration are ... Keywords: Doc2U, PIÑAS, casual and informal interactions, potential and actual collaboration spaces, potential collaboration awareness

Alberto L. Morán; Jesús Favela; Ana María Martínez Enríquez; Dominique Decouchant

2002-09-01T23:59:59.000Z

391

On the design of potential collaboration spaces  

Science Conference Proceedings (OSTI)

In this paper, we introduce the concepts of Potential and Actual Collaboration Spaces. The former applies to the initial space where opportunities for collaboration are identified and an initial interaction is established, while the latter relates to ... Keywords: Doc2U, casual and informal interactions, potential collaboration awareness, potential collaboration spaces

Alberto L. Moran; Jesus Favela; Ana M. Martinez Enriquez; Dominique Decouchant

2004-05-01T23:59:59.000Z

392

TSPA Model Development and Sensitivity Analysis of Processes Affecting  

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

TSPA Model Development and Sensitivity Analysis of Processes TSPA Model Development and Sensitivity Analysis of Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear Waste TSPA Model Development and Sensitivity Analysis of Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear Waste The document describes the initial work on designing and developing requirements for a total system performance assessment (TSPA) model that can support preliminary safety assessments for a mined geologic repository for high-level waste (HLW) and spent nuclear fuel (SNF) in salt host rock at a generic site. A preliminary generic salt TSPA model for HLW/SNF disposal has been developed and tested for an isothermal repository in salt, for emplaced waste that is assumed to have no decay heat; for salt

393

DNA damage induced clusterin expression - A sensitive measure of genomic  

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

damage induced clusterin expression - A sensitive measure of genomic damage induced clusterin expression - A sensitive measure of genomic instability David Boothman University of Texas Southwestern Medical Center at Dallas Abstract Secretory clusterin (sCLU) is a glycoprotein secreted from cells following exposure to genotoxic stress, and sCLU expression is elevated in many different disease states. sCLU is a pro-survival protein that acts as a molecular chaperone to remove cell debris caused by trauma to cells and tissues in vivo. sCLU expression is extremely sensitive to oxidative stress and DNA damage and can be induced by low dose ionizing radiation (LDIR), as low as 2 cGy. We previously demonstrated that sCLU was induced after LDIR by activation of the Insulin-like Growth Factor 1 Receptor (IGF-1R), and downstream stimulation of Src/MAPK/Erk-1/2 to promote binding of the Egr-1

394

ARM - Publications: Science Team Meeting Documents: Sensitivities of a  

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

Sensitivities of a super-parameterization to grid configuration and Sensitivities of a super-parameterization to grid configuration and microphysics parameters: single-column and GCM studies Khairoutdinov, Marat Colorado State University Randall, David Colorado State University Super-parameterization (SP) is a cloud-resolving component of the CSU Multiscale-Modeling Framework (MMF) based on the NCAR Community Atmopshere Model (CAM). While individual deep clouds and meso-scale cloud systems are explicitly resolved by the MMF, the bulk microphysics scheme applied in this approach has still to be parameterized. One of the most difficult problems of the MMF research is revealed by a few preliminary MMF experiments suggesting that simulated radiative fluxes and consequently simulated global climate appear to be quite sensitive to bulk microphysics

395

The Sensitivity of Radiative Fluxes to Parameterized Cloud Microphysics  

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

Sensitivity of Radiative Fluxes to Sensitivity of Radiative Fluxes to Parameterized Cloud Microphysics S. F. Iacobellis and R. C. J. Somerville Scripps Institution of Oceanography University of California San Diego, California G. M. McFarquhar University of Illinois at Urbana-Champaign Urbana, Illinois D. L. Mitchell Desert Research Institute Las Vegas, Nevada Introduction We have used a single-column model (SCM) to examine the sensitivity of fundamental quantities such as atmospheric radiative heating rates and surface and top of atmosphere (TOA) radiative fluxes to various parameterizations of clouds and cloud microphysics. When an SCM, which consists of one isolated column of a global atmospheric model, is forced with observational estimates of horizontal advection terms, the parameterizations within the SCM produce time-dependent fields which can be

396

New Technology Paves Way for Highly Sensitive Photodetectors with  

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

New Technology Paves Way for Highly Sensitive Photodetectors with New Technology Paves Way for Highly Sensitive Photodetectors with Applications in High Energy Physics, Medicine, and National Security High Energy Physics (HEP) HEP Home About Research Facilities Science Highlights Benefits of HEP Funding Opportunities Advisory Committees News & Resources Contact Information High Energy Physics U.S. Department of Energy SC-25/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3624 F: (301) 903-2597 E: sc.hep@science.doe.gov More Information » October 2012 New Technology Paves Way for Highly Sensitive Photodetectors with Applications in High Energy Physics, Medicine, and National Security Argonne National Lab wins prestigious 2012 R&D 100 award for development of Large Area Microchannel Plate Detectors

397

Sensitivity of Radiative Fluxes and Heating Rates to Cloud Microphysics  

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

Sensitivity of Radiative Fluxes and Heating Sensitivity of Radiative Fluxes and Heating Rates to Cloud Microphysics S. F. Iacobellis and R. C. J. Somerville Scripps Institution of Oceanography University of California, San Diego La Jolla, California G. M. McFarquhar University of Illinois at Urbana-Champaign Urbana, Illinois D. L. Mitchell Desert Research Institute Reno, Nevada Introduction A single-column model (SCM) is used to examine the sensitivity of basic quantities such as atmospheric radiative heating rates and surface and top of atmosphere (TOA) radiative fluxes to various parameter- izations of clouds and cloud microphysics. The SCM was run at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP), Tropical Western Pacific (TWP), and North Slope of Alaska (NSA) sites using forcing data derived from forecast products. The forecast

398

Gas sensitive materials for gas detection and method of making  

DOE Patents (OSTI)

A gas sensitive material comprising SnO2 nanocrystals doped with In2O3 and an oxide of a platinum group metal, and a method of making the same. The platinum group metal is preferably Pd, but also may include Pt, Ru, Ir, and combinations thereof. The SnO2 nanocrystals have a specific surface of 7 or greater, preferably about 20 m2/g, and a mean particle size of between about 10 nm and about 100 nm, preferably about 40 nm. A gas detection device made from the gas sensitive material deposited on a substrate, the gas sensitive material configured as a part of a current measuring circuit in communication with a heat source.

Trakhtenberg, Leonid Israilevich; Gerasimov, Genrikh Nikolaevich; Gromov, Vladimir Fedorovich; Rozenberg, Valeriya Isaakovna

2012-12-25T23:59:59.000Z

399

Microsoft Word - SCI Sensitive Compartmented Info Final 032108.doc  

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

ACCESS PROGRAM ACCESS PROGRAM Inspection Report Office of Intelligence and Counterintelligence Internal Controls Over the Department of Energy's Sensitive Compartmented Information Access Program DOE/IG-0790 March 2008 U.S. Department of Energy Office of Inspector General Office of Inspections and Special Inquiries OFFICE OF INTELLIGENCE AND COUNTERINTELLIENCE INTERNAL CONTROLS OVER THE DEPARTMENT OF ENERGY'S SENSITIVE COMPARTMENTED INFORMATION ACCESS PROGRAM TABLE OF CONTENTS OVERVIEW Introduction and Objective 1 Observations and Conclusions 2 DETAILS OF FINDINGS Background 3 Removal from SCI Roster 3 Administrative Debriefing 4 Employment Status Change 5 Incomplete Nondisclosure Agreements 6

400

Mixed state sensitivity of several quantum information benchmarks  

E-Print Network (OSTI)

We investigate an imbalance between the sensitivity of the common state measures--fidelity, trace distance, concurrence, tangle, von Neumann entropy and linear entropy--when acted on by a depolarizing channel. Further, in this context we explore two classes of two-qubit entangled mixed states. Specifically, we illustrate a sensitivity imbalance between three of these measures for depolarized (i.e., Werner-state like) nonmaximally entangled and maximally entangled mixed states, noting that the size of the imbalance depends on the state's tangle and linear entropy.

Nicholas A. Peters; Tzu-Chieh Wei; Paul G. Kwiat

2004-07-22T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Calculation of the impact sensitivity characteristics of solid explosives  

Science Conference Proceedings (OSTI)

A method is proposed for calculating the critical impact initiation parameters of solid explosive in connection with fall-hammer sensitivity tests using a Kholevo No. 2 instrument. Tables present the initial data for calculating the critical initiation parameters of a series of common explosives, and the results of the calculations. Also shown are the results of calculating p and delta as functions of the composition of an ammonium perchlorate-Plexiglas mixture. The experimental data on the sensitivity of this mixture are consistent with the calculations made on the assumption of a chemical reaction between the ammonium-perchlorate and the Plexiglas (or their thermal decomposition products) on impact.

Dubovik, A.V.

1986-07-01T23:59:59.000Z

402

Sensitivity analysis of the fission gas behavior model in BISON.  

Science Conference Proceedings (OSTI)

This report summarizes the result of a NEAMS project focused on sensitivity analysis of a new model for the fission gas behavior (release and swelling) in the BISON fuel performance code of Idaho National Laboratory. Using the new model in BISON, the sensitivity of the calculated fission gas release and swelling to the involved parameters and the associated uncertainties is investigated. The study results in a quantitative assessment of the role of intrinsic uncertainties in the analysis of fission gas behavior in nuclear fuel.

Swiler, Laura Painton; Pastore, Giovanni [Idaho National Laboratory, Idaho Fall, ID; Perez, Danielle [Idaho National Laboratory, Idaho Fall, ID; Williamson, Richard [Idaho National Laboratory, Idaho Fall, ID

2013-05-01T23:59:59.000Z

403

Green roofs: potential at LANL  

SciTech Connect

Green roofs, roof systems that support vegetation, are rapidly becoming one of the most popular sustainable methods to combat urban environmental problems in North America. An extensive list of literature has been published in the past three decades recording the ecological benefits of green roofs; and now those benefits have been measured in enumerated data as a means to analyze the costs and returns of green roof technology. Most recently several studies have made substantial progress quantifying the monetary savings associated with storm water mitigation, the lessoning of the Urban Heat Island, and reduction of building cooling demands due to the implementation of green roof systems. Like any natural vegetation, a green roof is capable of absorbing the precipitation that falls on it. This capability has shown to significantly decrease the amount of storm water runoff produced by buildings as well as slow the rate at which runoff is dispensed. As a result of this reduction in volume and velocity, storm drains and sewage systems are relieved of any excess stress they might experience in a storm. For many municipalities and private building owners, any increase in storm water mitigation can result in major tax incentives and revenue that does not have to be spent on extra water treatments. Along with absorption of water, vegetation on green roofs is also capable of transpiration, the process by which moisture is evaporated into the air to cool ambient temperatures. This natural process aims to minimize the Urban Heat Island Effect, a phenomenon brought on by the dark and paved surfaces that increases air temperatures in urban cores. As the sun distributes solar radiation over a city's area, dark surfaces such as bitumen rooftops absorb solar rays and their heat. That heat is later released during the evening hours and the ambient temperatures do not cool as they normally would, creating an island of constant heat. Such excessively high temperatures induce heat strokes, heat exhaustion, and pollution that can agitate the respiratory system. The most significant savings associated with green roofs is in the reduction of cooling demands due to the green roof's thermal mass and their insulating properties. Unlike a conventional roof system, a green roof does not absorb solar radiation and transfer that heat into the interior of a building. Instead the vegetation acts as a shade barrier and stabilizes the roof temperature so that interior temperatures remain comfortable for the occupants. Consequently there is less of a demand for air conditioning, and thus less money spent on energy. At LANL the potential of green roof systems has already been realized with the construction of the accessible green roof on the Otowi building. To further explore the possibilities and prospective benefits of green roofs though, the initial capital costs must be invested. Three buildings, TA-03-1698, TA-03-0502, and TA-53-0031 have all been identified as sound candidates for a green roof retrofit project. It is recommended that LANL proceed with further analysis of these projects and implementation of the green roofs. Furthermore, it is recommended that an urban forestry program be initiated to provide supplemental support to the environmental goals of green roofs. The obstacles barring green roof construction are most often budgetary and structural concerns. Given proper resources, however, the engineers and design professionals at LANL would surely succeed in the proper implementation of green roof systems so as to optimize their ecological and monetary benefits for the entire organization.

Pacheco, Elena M [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

404

Potential Health Hazards of Radiation | Department of Energy  

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

Potential Health Hazards of Radiation Potential Health Hazards of Radiation Potential Health Hazards of Radiation Potential Health Hazards of Radiation More Documents &...

405

Accurate Born-Oppenheimer potential for H$_2$  

E-Print Network (OSTI)

The Born-Oppenheimer potential for the $^1\\Sigma_g^+$ state of H$_2$ is obtained in the range of 0.1 -- 20 au, using analytic formulas and recursion relations for two-center two-electron integrals with exponential functions. For small distances James-Coolidge basis is used, while for large distances the Heitler-London functions with arbitrary polynomial in electron variables. In the whole range of internuclear distance about $10^{-15}$ precision is achieved, as an example at the equilibrium distance $r=1.4011$ au the Born-Oppenheimer potential amounts to $-1.174\\,475\\,931\\,400\\,216\\,7(3)$. Results for the exchange energy verify the formula of Herring and Flicker [Phys. Rev. {\\bf 134}, A362 (1964)] for the large internuclear distance asymptotics. The presented analytic approach to Slater integrals opens a window for the high precision calculations in an arbitrary diatomic molecule.

Pachucki, Krzysztof

2010-01-01T23:59:59.000Z

406

Fusion-fission reactions with modified Woods-Saxon potential  

E-Print Network (OSTI)

A modified Woods-Saxon potential model is proposed for a unified description of the entrance channel fusion barrier and the fission barrier of fusion-fission reactions based on the Skyrme energy-density functional approach. The fusion excitation functions of 120 reactions have been systematically studied. The fusion (capture) cross sections are well described with the calculated potential and an empirical barrier distribution. Incorporating a statistical model (HIVAP code) for describing the decay of the compound nucleus, the evaporation residue (and fission) cross sections of 51 fusion-fission reactions have been systematically investigated. Optimal values of some key parameters of the HIVAP code are obtained based on the experimental data of these reactions. The experimental data are reasonably well reproduced by the calculated results. The upper and lower confidence limits of the systematic errors of the calculated results are given.

Ning Wang; Kai Zhao; Werner Scheid; Xizhen Wu

2007-12-15T23:59:59.000Z

407

Distributed Energy Resources at Naval Base Ventura County Building 1512: A Sensitivity Analysis  

E-Print Network (OSTI)

18 Figure 5: Electricity and Demand Price Sensitivity –22 Figure 9: Electricity and Demand Price Sensitivity –technology lifetime, electricity and demand tariffs, standby

Bailey, Owen C.; Marnay, Chris

2005-01-01T23:59:59.000Z

408

Distributed Energy Resources at Naval Base Ventura County Building 1512: A Sensitivity Analysis  

E-Print Network (OSTI)

Naval Base Ventura County Standby Generator Optimization20 Figure 7: Standby Charge Sensitivity – Separate24 Figure 11: Standby Charge Sensitivity Analysis –

Bailey, Owen C.; Marnay, Chris

2005-01-01T23:59:59.000Z

409

Exact Solutions of the Abelian Decomposed Restricted Gauge Potential  

Science Conference Proceedings (OSTI)

We construct new exact solution of the SU(2) Yang-Mills-Higgs model by considering Abelian decomposition of the gauge potential. The solution is obtained by considering only the restricted part of the decomposition, where the unrestricted valence part is switched off. The solutions possess free parameters c{sub 1}, c{sub 2} and q that correspond to different physical system of monopoles. Under the limit of c{sub 1} = 0, c{sub 2} = 1, and q = 1, the solution is that of the Wu-Yang-like monopole.

Wong, Khai-Ming; Teh, Rosy; Koh, Pin-Wai [School of Physics, Universiti Sains Malaysia, 11800 USM, Penang (Malaysia)

2011-03-30T23:59:59.000Z

410

Ionization potential for excited S states of the lithium atom  

Science Conference Proceedings (OSTI)

Nonrelativistic, relativistic, quantum electrodynamic, and finite nuclear mass corrections to the energy levels are obtained for the nS{sub 1/2},n=3,...,9 states of the lithium atom. Computational approach is based on the explicitly correlated Hylleraas functions with the analytic integration and recursion relations. Theoretical predictions for the ionization potential of nS{sub 1/2} states and transition energies nS{sub 1/2{yields}}2S{sub 1/2} are compared to known experimental values for {sup 6,7}Li isotopes.

Puchalski, M. [Faculty of Physics, University of Warsaw, Hoza 69, PL-00681 Warsaw (Poland); Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, PL-60780 Poznan (Poland); KePdziera, D. [Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, PL-87100 Torun (Poland); Pachucki, K. [Faculty of Physics, University of Warsaw, Hoza 69, PL-00681 Warsaw (Poland)

2010-12-15T23:59:59.000Z

411

On sensitivity analysis in the 4dVar framework  

Science Conference Proceedings (OSTI)

The sensitivity of model forecasts to uncertainties in the control variables is evaluated using the adjoint technique and the ensemble generated by the reduced-order 4d variational (R4dVar) algorithm in the framework of twin-data experiments with ...

Max Yaremchuk; Paul Martin

412

Topography-sensitive copper deposition in supercritical solutions  

Science Conference Proceedings (OSTI)

Topography-sensitive deposition, a preferential growth mode in a narrow concave feature, of copper in supercritical solutions is reported. Experiments were carried out in supercritical carbon dioxide at 13MPa with a maximum temperature of 230^oC, using ... Keywords: Capillary condensation, Copper, Nanorod, Supercritical fluid

E. Kondoh; K. Nagano; C. Yamamoto; J. Yamanaka

2009-04-01T23:59:59.000Z

413

Recurving Tropical Cyclones: Singular Vector Sensitivity and Downstream Impacts  

Science Conference Proceedings (OSTI)

Singular vectors (SVs) are used to study the sensitivity of 2-day forecasts of recurving tropical cyclones (TCs) in the western North Pacific to changes in the initial state. The SVs are calculated using the tangent and adjoint models of the Navy ...

Carolyn A. Reynolds; Melinda S. Peng; Jan-Huey Chen

2009-04-01T23:59:59.000Z

414

Fast data acquisition in cost-sensitive learning  

Science Conference Proceedings (OSTI)

Data acquisition is the first and one of the most important steps in many data mining applications. It is a time consuming and costly task. Acquiring an insufficient number of examples makes the learned model and future prediction inaccurate, while acquiring ... Keywords: cost-sensitive learning, data acquisition, data mining, fast data acquisition, machine learning

Victor S. Sheng

2011-08-01T23:59:59.000Z

415

ESTIMATION OF NONLINEAR DCMOTOR MODELS USING A SENSITIVITY APPROACH  

E-Print Network (OSTI)

for a permanent magnet DC­motor, appropriate for simulation and controller design, is developed. The essential of permanent magnet DC­motors are due to coulomb friction and to variable brush contact resistanceESTIMATION OF NONLINEAR DC­MOTOR MODELS USING A SENSITIVITY APPROACH Morten Knudsen and Jørgen Grue

Knudsen, Morten

416

Cold shock and regulation of surface protein trafficking convey sensitization  

E-Print Network (OSTI)

Cold shock and regulation of surface protein trafficking convey sensitization to inducers of stage and GPEET procyclins. Here we show that a cold shock of T > 15°C is sufficient to reversibly induce high of the EP mRNA is necessary and sufficient for the increased expression. During cold shock, EP protein

Arnold, Jonathan

417

Sensitivity of Tropical Convection to Land Surface Processes  

Science Conference Proceedings (OSTI)

This paper studies the sensitivity of large-scale tropical convection to land surface changes in the general circulation model of the LMD. Ale method of analysis is based on a conceptual model of the energetics of convection applied every day of ...

J. Polcher

1995-09-01T23:59:59.000Z

418

Climate Sensitivity of the Community Climate System Model, Version 4  

Science Conference Proceedings (OSTI)

Equilibrium climate sensitivity of the Community Climate System Model, version 4 (CCSM4) is 3.20°C for 1° horizontal resolution in each component. This is about a half degree Celsius higher than in the previous version (CCSM3). The transient ...

C. M. Bitz; K. M. Shell; P. R. Gent; D. A. Bailey; G. Danabasoglu; K. C. Armour; M. M. Holland; J. T. Kiehl

2012-05-01T23:59:59.000Z

419

Position sensitive radioactivity detection for gas and liquid chromatography  

DOE Patents (OSTI)

A method and apparatus are provided for the position sensitive detection of radioactivity in a fluid stream, particularly in the effluent fluid stream from a gas or liquid chromatographic instrument. The invention represents a significant advance in efficiency and cost reduction compared with current efforts.

Cochran, Joseph L. (Knoxville, TN); McCarthy, John F. (Loudon, TN); Palumbo, Anthony V. (Oak Ridge, TN); Phelps, Tommy J. (Knoxville, TN)

2001-01-01T23:59:59.000Z

420

Global sensitivity analysis of stochastic computer models with joint metamodels  

Science Conference Proceedings (OSTI)

The global sensitivity analysis method used to quantify the influence of uncertain input variables on the variability in numerical model responses has already been applied to deterministic computer codes; deterministic means here that the same set of ... Keywords: Computer experiment, Gaussian process, Generalized additive model, Joint modeling, Sobol indices, Uncertainty

Amandine Marrel; Bertrand Iooss; Sébastien Veiga; Mathieu Ribatet

2012-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Langley 16-Ft. Transonic Tunnel Pressure Sensitive Paint System  

Science Conference Proceedings (OSTI)

This report describes the NASA Langley 16-Ft. Transonic Tunnel Pressure Sensitive Paint (PSP) System and presents results of a test conducted June 22-23, 2000 in the tunnel to validate the PSP system. The PSP system provides global surface pressure measurements ...

Sprinkle Danny R.; Obara Clifford J.; Amer Tahani R.; Leighty Bradley D.; Carmine Michael T.; Burkett Cecil G.; Sealey Bradley S.

2001-06-01T23:59:59.000Z

422

Optimal Production Planning under Time-sensitive Electricity Prices for  

E-Print Network (OSTI)

Optimal Production Planning under Time-sensitive Electricity Prices for Continuous Power-dependent electricity pricing schemes. In this paper, we describe a deterministic MILP model that allows optimal week and hourly changing electricity prices, we solve an industrial case study on air separation plants

Grossmann, Ignacio E.

423

Modeling, simulation, sensitivity analysis, and optimization of hybrid systems  

Science Conference Proceedings (OSTI)

Hybrid (discrete/continuous) systems exhibit both discrete state and continuous state dynamics which interact to such a significant extent that they cannot be decoupled and must be analyzed simultaneously. We present an overview of the work that has ... Keywords: Hybrid automata, combined discrete/continuous simulation, consistent reinitialization, discontinuities, sensitivity analysis, state events, transitions

Paul I. Barton; Cha Kun Lee

2002-10-01T23:59:59.000Z

424

Modeling consumer sensitivity for product design and perceived usability  

Science Conference Proceedings (OSTI)

The primary objective of this research paper is to investigate the relationship between the perceived qualities of home appliances with respect to various design features. Consumers may define their fondness of the particular system or model over other ... Keywords: consumer sensitivity, perceived usability, product design

Tareq Ahram, Waldemar Karwowski, Nabin Sapkota

2013-07-01T23:59:59.000Z

425

Design tradeoff studies and sensitivity analysis. Appendix B  

SciTech Connect

The results of the design trade-off studies and the sensitivity analysis of Phase I of the Near Term Hybrid Vehicle (NTHV) Program are presented. The effects of variations in the design of the vehicle body, propulsion systems, and other components on vehicle power, weight, cost, and fuel economy and an optimized hybrid vehicle design are discussed. (LCL)

1979-05-25T23:59:59.000Z

426

Risk-sensitive plan execution for connected sustainable home  

Science Conference Proceedings (OSTI)

This paper presents a risk-sensitive model-based plan executive, p-Sulu, as well as its application to energy-efficient room temperature control of a smart residential building called Connected Sustainable Home. p-Sulu minimizes the use of heating and ... Keywords: chance-constraint, flexible temporal constraint, smart building

Masahiro Ono; Wesley Graybill; Brian C. Williams

2012-11-01T23:59:59.000Z

427

On context-sensitive usability evaluation in mobile HCI  

Science Conference Proceedings (OSTI)

In usability evaluations, experiments are often conducted in closed laboratory situations to avoid disturbing influences. Due to non-realistic usage assumptions, this approach has important shortcomings when mobile Human Computer Interactions (m-HCIs) ... Keywords: context-sensitivity, field usability evaluation, mobile HCI, wireless sensor network

Karin Anna Hummel; Thomas Grill; Andrea Hess

2009-12-01T23:59:59.000Z

428

Annual grassland resource pools and fluxes: sensitivity to precipitation  

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

Annual grassland resource pools and fluxes: sensitivity to precipitation Annual grassland resource pools and fluxes: sensitivity to precipitation and dry periods on two contrasting soils Title Annual grassland resource pools and fluxes: sensitivity to precipitation and dry periods on two contrasting soils Publication Type Journal Article Year of Publication 2012 Authors Sudderth, Erika A., Samuel B. St. Clair, Sarah A. Placella, Stéphanie M. Swarbreck, Cristina Castanha, Donald J. Herman, Marc L. Fischer, Markus Kleber, Erik B. Sudderth, Margaret S. Torn, Mary K. Firestone, Gary L. Andersen, and David D. Ackerly Journal Ecosphere Volume 3 Issue 8 Keywords Avena barbata, Bayesian ANOVA, carbon, climate change, dry periods, Grassland, nitrogen, phenology, precipitation, soil type, water Abstract In ecosystems throughout the world climate models project increased variability in precipitation patterns that may strongly affect the above- and below-ground processes that control carbon, water, and nutrient cycles. Uncertainty about how plant and soil processes respond to wet and dry periods at different times in the growing season is a barrier to understanding how changing rainfall patterns will affect ecosystem function in annual grasslands. We used mesocosm systems to test the sensitivity to mid- and late-season dry periods of twenty response variables related to nitrogen, carbon, and water cycling in Avena barbata monocultures. We compared the responses of individual variables and of grassland systems under low and high cumulative rain treatments and between two contrasting soil types.

429

Prodigiosin down-regulates survivin to facilitate paclitaxel sensitization in human breast carcinoma cell lines  

SciTech Connect

Prodigiosin is a bacterial metabolite with potent anticancer activity, which is attributed to its proapoptotic effect selectively active in malignant cells. Still, the molecular mechanisms whereby prodigiosin induces apoptosis remain largely unknown. In particular, the role of survivin, a vital inhibitor of apoptosis, in prodigiosin-induced apoptosis has never been addressed before and hence was the primary goal of this study. Our results showed that prodigiosin dose-dependently induced down-regulation of survivin in multiple breast carcinoma cell lines, including MCF-7, T-47D and MDA-MB-231. This down-regulation is mainly regulated at the level of transcription, as prodigiosin reduced the levels of both survivin mRNA and survivin promoter activity but failed to rescue survivin expression when proteasome-mediated degradation is abolished. Importantly, overexpression of survivin rendered cells more resistant to prodigiosin, indicating an essential role of survivin down-regulation in prodigiosin-induced apoptosis. In addition, we found that prodigiosin synergistically enhanced cell death induced by paclitaxel, a chemotherapy drug known to up-regulate survivin that in turn confers its own resistance. This paclitaxel sensitization effect of prodigiosin is ascribed to the lowering of survivin expression, because prodigiosin was shown to counteract survivin induction by paclitaxel and, notably, the sensitization effect was severely abrogated in cells that overexpress survivin. Taken together, our results argue that down-regulation of survivin is an integral component mediating prodigiosin-induced apoptosis in human breast cancer cells, and further suggest the potential of prodigiosin to sensitize anticancer drugs, including paclitaxel, in the treatment of breast cancer.

Ho, T.-F. [Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan (China); Department of Medical Technology, Central Taiwan University of Science and Technology, Taichung, Taiwan (China); Peng, Y.-T.; Chuang, S.-M.; Lin, S.-C.; Feng, B.-L. [Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan (China); Lu, C.-H. [Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan (China); Department of Obstetrics and Gynecology, Taichung Veterans General Hospital, Taichung, Taiwan (China); Yu, W.-J. [Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan (China); Chang, J.-S. [Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan (China); Sustainable Environment Research Center, National Cheng Kung University, Tainan, Taiwan (China)], E-mail: changjs@mail.ncku.edu.tw; Chang, C.-C. [Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan (China)], E-mail: chia_che@dragon.nchu.edu.tw

2009-03-01T23:59:59.000Z

430

Sensitivity analysis of Monju using ERANOS with JENDL-4.0  

Science Conference Proceedings (OSTI)

This paper deals with sensitivity analysis using JENDL-4.0 nuclear data applied to the Monju reactor. In 2010 the Japan Atomic Energy Agency - JAEA - released a new set of nuclear data: JENDL-4.0. This new evaluation is expected to contain improved data on actinides and covariance matrices. Covariance matrices are a key point in quantification of uncertainties due to basic nuclear data. For sensitivity analysis, the well-established ERANOS [1] code was chosen because of its integrated modules that allow users to perform a sensitivity analysis of complex reactor geometries. A JENDL-4.0 cross-section library is not available for ERANOS. Therefore a cross-section library had to be made from the original nuclear data set, available as ENDF formatted files. This is achieved by using the following codes: NJOY, CALENDF, MERGE and GECCO in order to create a library for the ECCO cell code (part of ERANOS). In order to make sure of the accuracy of the new ECCO library, two benchmark experiments have been analyzed: the MZA and MZB cores of the MOZART program measured at the ZEBRA facility in the UK. These were chosen due to their similarity to the Monju core. Using the JENDL-4.0 ECCO library we have analyzed the criticality of Monju during the restart in 2010. We have obtained good agreement with the measured criticality. Perturbation calculations have been performed between JENDL-3.3 and JENDL-4.0 based models. The isotopes {sup 239}Pu, {sup 238}U, {sup 241}Am and {sup 241}Pu account for a major part of observed differences. (authors)

Tamagno, P. [Institut National des Sciences et Techniques Nucleaires, INSTN - Point Courrier no 35, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex (France); Van Rooijen, W. F. G.; Takeda, T. [Research Inst. of Nuclear Engineering, Univ. of Fukui, Kanawa-cho 1-2-4, T914-0055 Fukui-ken, Tsuruga-shi (Japan); Konomura, M. [Japan Atomic Energy Agency, FBR Plant Engineering Center, Shiraki 1, 919-1279 Fukui-ken, Tsuruga-shi (Japan)

2012-07-01T23:59:59.000Z

431

Sensitivity of storage field performance to geologic and cavern design parameters in salt domes.  

Science Conference Proceedings (OSTI)

A sensitivity study was performed utilizing a three dimensional finite element model to assess allowable cavern field sizes in strategic petroleum reserve salt domes. A potential exists for tensile fracturing and dilatancy damage to salt that can compromise the integrity of a cavern field in situations where high extraction ratios exist. The effects of salt creep rate, depth of salt dome top, dome size, caprock thickness, elastic moduli of caprock and surrounding rock, lateral stress ratio of surrounding rock, cavern size, depth of cavern, and number of caverns are examined numerically. As a result, a correlation table between the parameters and the impact on the performance of a storage field was established. In general, slower salt creep rates, deeper depth of salt dome top, larger elastic moduli of caprock and surrounding rock, and a smaller radius of cavern are better for structural performance of the salt dome.

Ehgartner, Brian L.; Park, Byoung Yoon; Herrick, Courtney Grant

2010-06-01T23:59:59.000Z

432

Sensitivity of storage field performance to geologic and cavern design parameters in salt domes.  

Science Conference Proceedings (OSTI)

A sensitivity study was performed utilizing a three dimensional finite element model to assess allowable cavern field sizes for strategic petroleum reserve salt domes. A potential exists for tensile fracturing and dilatancy damage to salt that can compromise the integrity of a cavern field in situations where high extraction ratios exist. The effects of salt creep rate, depth of salt dome top, dome size, caprock thickness, elastic moduli of caprock and surrounding rock, lateral stress ratio of surrounding rock, cavern size, depth of cavern, and number of caverns are examined numerically. As a result, a correlation table between the parameters and the impact on the performance of storage field was established. In general, slower salt creep rates, deeper depth of salt dome top, larger elastic moduli of caprock and surrounding rock, and a smaller radius of cavern are better for structural performance of the salt dome.

Ehgartner, Brian L. (Sandia National Laboratories, Albuquerque, NM); Park, Byoung Yoon

2009-03-01T23:59:59.000Z

433

Grid Parity for Residential Photovoltaics in the United States: Key Drivers and Sensitivities; Preprint  

DOE Green Energy (OSTI)

In this report, we analyze PV break-even costs for U.S. residential customers. We evaluate some key drivers of grid parity both regionally and over time. We also examine the impact of moving from flat to time-of-use (TOU) rates, and we evaluate individual components of the break-even cost, including effect of rate structure and various incentives. Finally, we examine how PV markets might evolve on a regional basis considering the sensitivity of the break-even cost to four major drivers: technical performance, financing parameters, electricity prices and rates, and policies. We find that electricity price rather than technical parameters are in general the key drivers of the break-even cost of PV. Additionally, this analysis provides insight about the potential viability of PV markets.

Ong, S.; Denholm, P.; Clark, N.

2012-08-01T23:59:59.000Z

434

Elemental and magnetic sensitive imaging using x-ray excited luminescence microscopy  

Science Conference Proceedings (OSTI)

We demonstrate the potential of x-ray excited luminescence microscopy for full-field elemental and magnetic sensitive imaging using a commercially available optical microscope, mounted on preexisting synchrotron radiation (SR) beamline end stations. The principal components of the instrument will be described. Bench top measurements indicate that a resolution of 1 {mu}m or better is possible; this value was degraded in practice due to vibrations and/or drift in the end station and associated manipulator. X-ray energy dependent measurements performed on model solar cell materials and lithographically patterned magnetic thin film structures reveal clear elemental and magnetic signatures. The merits of the apparatus will be discussed in terms of conventional SR imaging techniques.

Rosenberg, R. A.; Zohar, S.; Keavney, D. [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Divan, R.; Rosenmann, D. [Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Mascarenhas, A.; Steiner, M. A. [National Renewable Energy Lab, Golden, Colorado 80401 (United States)

2012-07-15T23:59:59.000Z

435

Residential passive solar systems: regional sensitivity to system performance costs, and alternative prices  

DOE Green Energy (OSTI)

The economic potential of two passive space heating configurations are analyzed. These are a masonry thermal storage wall (Trombe) and a direct gain system - both with night insulation. A standard tract home design for each of the two passive systems is being used throughout the analysis to allow interregional comparisons. The economic performance of these two systems is evaluated on a regional basis (223 locations) throughout the United States. For each of the two conventional energy types considered (electricity and natural gas), sensitivity analysis is conducted to determine the impact of alternative fuel price escalation rates and solar costs upon feasibility of the two solar systems. Cost goals for solar system prices are established under one set of future fuel prices and stated economic conditions. (MOW)

Kirschner, C.; Ben-David, S.; Roach, F.

1979-01-01T23:59:59.000Z

436

Sensitized photoelectrolysis of water with sunlight. Final report, June 1, 1977-December 31, 1978  

SciTech Connect

A study was made of solar driven water photoelectrolysis cells employing semiconductor electrodes. An extensive review of the literature was undertaken, and the three major problem areas for these devices were identified: corrosion, poor sunlight absorption, and external bias requirement. Although many semiconductors had been tested, none had proven free of all three defects. Two approaches were thus followed for the experimental studies: impurity sensitization of wide band gap stable oxides, and heterostructure formation between unstable sunlight absorbers and corrosion resistant oxides. Water decomposition was achieved with visible light excitation of Cr-doped TiO/sub 2/. Transport properties were studies for TiO/sub 2/ and SrTiO/sub 3/ electrodes doped with V, Cr, Mn, Fe, Co, and Ni. The correlation between bias requirement and electron affinity of oxides was identified. Performance of heterostructure electrodes was shown to be limited either by pin hole problems or by potential barriers between the valence bands.

Ghosh, A.K.; Maruska, H.P.

1978-12-01T23:59:59.000Z

437

Sensitivity studies for r-process nucleosynthesis in three astrophysical scenarios  

E-Print Network (OSTI)

In rapid neutron capture, or r-process, nucleosynthesis, heavy elements are built up via a sequence of neutron captures and beta decays that involves thousands of nuclei far from stability. Though we understand the basics of how the r-process proceeds, its astrophysical site is still not conclusively known. The nuclear network simulations we use to test potential astrophysical scenarios require nuclear physics data (masses, beta decay lifetimes, neutron capture rates, fission probabilities) for all of the nuclei on the neutron-rich side of the nuclear chart, from the valley of stability to the neutron drip line. Here we discuss recent sensitivity studies that aim to determine which individual pieces of nuclear data are the most crucial for r-process calculations. We consider three types of astrophysical scenarios: a traditional hot r-process, a cold r-process in which the temperature and density drop rapidly, and a neutron star merger trajectory.

R. Surman; M. Mumpower; J. Cass; I. Bentley; A. Aprahamian; G. C. McLaughlin

2013-08-31T23:59:59.000Z

438

Prospects for the CERN Axion Solar Telescope Sensitivity to 14.4 keV Axions  

E-Print Network (OSTI)

The CERN Axion Solar Telescope (CAST) is searching for solar axions using the 9.0 T strong and 9.26 m long transverse magnetic field of a twin aperture LHC test magnet, where axions could be converted into X-rays via reverse Primakoff process. Here we explore the potential of CAST to search for 14.4 keV axions that could be emitted from the Sun in M1 nuclear transition between the first, thermally excited state, and the ground state of 57Fe nuclide. Calculations of the expected signals, with respect to the axion-photon coupling, axion-nucleon coupling and axion mass, are presented in comparison with the experimental sensitivity.

Jakovcic, K; Aune, S; Avignone, F T; Barth, K; Belov, A; Beltrn, B; Bruninger, H; Carmona, J M; Cebrin, S; Collar, J I; Dafni, T; Davenport, M; Di Lella, L; Eleftheriadis, C; Fanourakis, G K; Ferrer-Ribas, E; Fischer, H; Franz, J; Friedrich, P; Geralis, T; Giomataris, Ioanis; Gninenko, S; Hasinoff, M D; Heinsius, F H; Hoffmann, Dieter H H; Irastorza, I G; Jacoby, J; Kang, D; Knigsmann, K; Kotthaus, R; Krcmar, M; Kousouris, a K; Kuster, M; Laki, B; Lasseur, C; Liolios, A; Ljubici, A; Lutz, G; Luzn, G; Miller, D W; Morales, A; Morales, J; Ortiz, A; Papaevangelou, T; Placci, A; Raffelt, G; Ruz, J; Riege, H; Semertzidis, Y K; Serpico, Pasquale Dario; Stewart, o L; Vieira, J D; Villar, J; Vogel, J; Walckiers, L; Zioutas, K; Jakovcic, Kresimir

2007-01-01T23:59:59.000Z

439

Development, sensitivity analysis, and uncertainty quantification of high-fidelity arctic sea ice models.  

SciTech Connect

Arctic sea ice is an important component of the global climate system and due to feedback effects the Arctic ice cover is changing rapidly. Predictive mathematical models are of paramount importance for accurate estimates of the future ice trajectory. However, the sea ice components of Global Climate Models (GCMs) vary significantly in their prediction of the future state of Arctic sea ice and have generally underestimated the rate of decline in minimum sea ice extent seen over the past thirty years. One of the contributing factors to this variability is the sensitivity of the sea ice to model physical parameters. A new sea ice model that has the potential to improve sea ice predictions incorporates an anisotropic elastic-decohesive rheology and dynamics solved using the material-point method (MPM), which combines Lagrangian particles for advection with a background grid for gradient computations. We evaluate the variability of the Los Alamos National Laboratory CICE code and the MPM sea ice code for a single year simulation of the Arctic basin using consistent ocean and atmospheric forcing. Sensitivities of ice volume, ice area, ice extent, root mean square (RMS) ice speed, central Arctic ice thickness, and central Arctic ice speed with respect to ten different dynamic and thermodynamic parameters are evaluated both individually and in combination using the Design Analysis Kit for Optimization and Terascale Applications (DAKOTA). We find similar responses for the two codes and some interesting seasonal variability in the strength of the parameters on the solution.

Peterson, Kara J.; Bochev, Pavel Blagoveston; Paskaleva, Biliana S.

2010-09-01T23:59:59.000Z

440

Further Results of Grossversuch IV: The Effect of the First Rocket Launched into a Potential Hail Cell  

Science Conference Proceedings (OSTI)

The data obtained in Grossversuch IV about hail prevention triggered the hypothesis that only the first rocket launched into a potential hail cell decreases hail kinetic energy in an effect-time interval around 10 min after launching time. ...

J. Bader; W. A. Stahel; W. Schmid

1992-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "obtain potentially sensitive" 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

Savings potential of ENERGY STAR (registered trademark) voluntary labeling programs  

SciTech Connect

In 1993 the U.S. Environmental Protection Agency (EPA) introduced ENERGY STAR (registered trademark), a voluntary labeling program designed to identify and promote energy-efficient products. Since then EPA, now in partnership with the U.S. Department of Energy (DOE), has introduced programs for more than twenty products, spanning office equipment, residential heating and cooling equipment, new homes, commercial and residential lighting, home electronics, and major appliances. We present potential energy, dollar and carbon savings forecasts for these programs for the period 1998 to 2010. Our target market penetration case represents our best estimate of future ENERGY STAR savings. It is based on realistic market penetration goals for each of the products. We also provide results under the assumption of 100% market penetration; that is, we assume that all purchasers buy ENERGY STAR-compliant products instead of standard efficiency products throughout the analysis period. Finally, we assess the sensitivity of our target penetration case forecasts to greater or lesser marketing success by EPA and DOE, lower-than-expected future energy prices, and higher or lower rates of carbon emission by electricity generators. The potential savings of ENERGY STAR are substantial. If all purchasers chose Energy Star-compliant products instead of standard efficiency products over the next 15 years, they would save more than $100 billion on their energy bills during those 15 years. (Bill savings are in 1995 dollars, discounted at a 4% real discount rate.)

Webber, Carrie A.; Brown, Richard E.

1998-06-19T23:59:59.000Z

442

An Efficient Finite Difference Method for Parameter Sensitivities of Continuous Time Markov Chains  

E-Print Network (OSTI)

We present an efficient finite difference method for the computation of parameter sensitivities for a wide class of continuous time Markov chains. The motivating class of models, and the source of our examples, are the stochastic chemical kinetic models commonly used in the biosciences, though other natural application areas include population processes and queuing networks. The method is essentially derived by making effective use of the random time change representation of Kurtz, and is no harder to implement than any standard continuous time Markov chain algorithm, such as "Gillespie's algorithm" or the next reaction method. Further, the method is analytically tractable, and, for a given number of realizations of the stochastic process, produces an estimator with substantially lower variance than that obtained using other common methods. Therefore, the computational complexity required to solve a given problem is lowered greatly. In this work, we present the method together with the theoretical analysis de...

Anderson, David F

2011-01-01T23:59:59.000Z

443

On the Sensitivity of Neutrino Telescopes to a Modified Dispersion Relation  

SciTech Connect

We consider a modified dispersion relation and its effect on the flavour ratios of high-energy neutrinos originated at distant astrophysical sources such as active galactic nuclei. This dispersion relation arise naturally in different new physics (NP) effects such as violation of CPT invariance, of the equivalence principle and of Lorentz invariance. It is a common notion in the literature that by using the flux of high-energy neutrinos expected from distant astrophysical sources, the sensitivity to possible NP effects may be improved beyond the current bounds. However, performing a realistic analysis that takes into account the expected number of events in future neutrino telescopes, we find that the average detected flavour ratios with and without the inclusion of new physics have essentially the same value, making difficult to obtain an improved bound for this type of new physics.

Bustamante, M.; Gago, A. M.; Bazo, J. L. [Pontificia Universidad Catolica del Peru, Seccion Fisica, Lima (Peru); Miranda, O. G. [Centro de Investigacion y de Estudios Avanzados, Departamento de Fisica, Mexico D.F. (Mexico)

2008-07-02T23:59:59.000Z

444

Preirradiation sensitivity loss of reader-annealed LiF TLDs  

Science Conference Proceedings (OSTI)

Yankee Atomic Electric Company (YAEC) maintains a thermoluminescent dosimeter (TLD) dosimetry service using a Harshaw TLD badge system consisting of two TLD cards in a plastic case and automatic 2271 readers. Beginning in 1986, a standardized on-site quality assurance testing program was instituted for the facilities provided with YAEC personnel dosimetry. Results obtained during the first half of 1986 indicated a low bias in test TLD results on the order of 10 to 15%. A subsequent investigation attributed this bias to a previously unidentified loss in the sensitivity of reader-annealed LiF TLDs with storage time prior to irradiation. The discovery of this effect, based on in-plant quality assurance testing, demonstrates the usefulness of even relatively simple quality assurance tests by users themselves, regardless of the apparent thoroughness of other testing.

Poeton, R.W.; Stanford, N.; Scannel, M.J.

1987-01-01T23:59:59.000Z

445

Sensitivity Studies of Advanced Reactors Coupled to High Temperature Electrolysis (HTE) Hydrogen Production Processes  

DOE Green Energy (OSTI)

High Temperature Electrolysis (HTE), when coupled to an advanced nuclear reactor capable of operating at reactor outlet temperatures of 800 °C to 950 °C, has the potential to efficiently produce the large quantities of hydrogen needed to meet future energy and transportation needs. To evaluate the potential benefits of nuclear-driven hydrogen production, the UniSim process analysis software was used to evaluate different reactor concepts coupled to a reference HTE process design concept. The reference HTE concept included an Intermediate Heat Exchanger and intermediate helium loop to separate the reactor primary system from the HTE process loops and additional heat exchangers to transfer reactor heat from the intermediate loop to the HTE process loops. The two process loops consisted of the water/steam loop feeding the cathode side of a HTE electrolysis stack, and the steam or air sweep loop used to remove oxygen from the anode side. The UniSim model of the process loops included pumps to circulate the working fluids and heat exchangers to recover heat from the oxygen and hydrogen product streams to improve the overall hydrogen production efficiencies. The reference HTE process loop model was coupled to separate UniSim models developed for three different advanced reactor concepts (a high-temperature helium cooled reactor concept and two different supercritical CO2 reactor concepts). Sensitivity studies were then performed to evaluate the affect of reactor outlet temperature on the power cycle efficiency and overall hydrogen production efficiency for each of the reactor power cycles. The results of these sensitivity studies showed that overall power cycle and hydrogen production efficiencies increased with reactor outlet temperature, but the power cycle producing the highest efficiencies varied depending on the temperature range considered.

Edwin A. Harvego; Michael G. McKellar; James E. O'Brien; J. Stephen Herring

2007-04-01T23:59:59.000Z

446

V-202: Cisco Video Surveillance Manager Bugs Let Remote Users...  

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

2: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain Potentially Sensitive Information V-202: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain Potentially...

447

Vertical Wavenumber Spectra of Gravity Waves in the Martian Atmosphere Obtained from Mars Global Surveyor Radio Occultation Data  

Science Conference Proceedings (OSTI)

Vertical wavenumber spectra of Martian gravity waves were obtained for the altitude range 3–32 km from temperature profiles acquired by the Mars Global Surveyor (MGS) radio occultation experiments. The spectra, which cover vertical wavelengths ...

Hiroki Ando; Takeshi Imamura; Toshitaka Tsuda

2012-09-01T23:59:59.000Z

448

Urban Energy Balance Obtained from the Comprehensive Outdoor Scale Model Experiment. Part I: Basic Features of the Surface Energy Balance  

Science Conference Proceedings (OSTI)

The objective of this study is to examine the basic features of the surface energy balance (SEB) using the data obtained from the Comprehensive Outdoor Scale Model (COSMO). COSMO is an idealized miniature city that has no vegetation, no human ...

Toru Kawai; Manabu Kanda

2010-07-01T23:59:59.000Z

449

Stakeholder Engagement and Outreach: Wind Resource Potential  

Wind Powering America (EERE)

Wind Resource Potential Offshore Maps Community-Scale Maps Residential-Scale Maps Anemometer Loan Programs & Data Wind Resource Potential State Wind Resource Potential Tables Find state wind resource potential tables in three versions: Microsoft Excel 2007, 2003, and Adobe Acrobat PDF. 30% Capacity Factor at 80-Meters Microsoft 2007 Microsoft 2003 Adobe Acrobat PDF Additional 80- and 100-Meter Wind Resource Potential Tables Microsoft 2007 Microsoft 2003 Adobe Acrobat PDF The National Renewable Energy Laboratory (NREL) estimated the windy land area and wind energy potential for each state using AWS Truepower's gross capacity factor data. This provides the most up to date estimate of how wind energy can support state and national energy needs. The table lists the estimates of windy land area with a gross capacity of

450

Measurement of electron temperatures in the lower ionosphere by detecting the space potential on the Langmuir probe characteristic  

SciTech Connect

Electron temperatures have been determined at Thumba on Nike Apache flight 10.11 (March 12, 1967, 1857 hr IST) by the usual retarding potential analysis and by using an ac modulation technique for detecting the space potential on the Langmuir probe characteristic. Simultaneous measurements with the two techniques show that the space potential technique gives temperatures which are related to the temperatures obtained from the retarding potential analysis in a manner remarkably similar to the relations obtained by Booker and Smith (J. Atmos. Terr, Phys.; 32: 467 (1970)) as well as by Carlson and Sayers (J. Geophys. Res.; 75: tures. This result is interesting in view of the fact that radar temperatures have been found to be in good agreement with the temperatures obtained by ac modulation techniques on satellite borne probes. The space potential technique is simple, requires limited additional electronics, does not make stringent demands on telemetry and can be easily adopted for rocket borne Langmuir probes. (auth)

Subbaraya, B.H.; Prakash, S.; Gupta, S.P.; Sinha, H.S.S.

1974-01-01T23:59:59.000Z

451

Thermodynamic potential for compactified bosonic strings  

E-Print Network (OSTI)

We discuss the inclusion of chemical potentials of the Kaluza-Klein charges in the partition function of the bosonic string with a compactified dimension on a circle. The construction of the thermodynamic potential is achieved by the path integral method at one-loop level. Duality symmetry in the dependence on compactification scale is examined. A modular-invariant expression for the thermodynamic potential is also presented.

Kiyoshi Shiraishi

2013-08-06T23:59:59.000Z

452

Exact solutions of the pseudo-Coulomb potential plus ring-shaped potential in the D-dimensional Schrodinger equation by the Nikiforov-Uvarov method  

E-Print Network (OSTI)

We present analytically the exact energy bound-states solutions of the Schrodinger equation in D-dimensions for an alternative (often used) pseudo-Coulomb potential-plus- ring-shaped potential of the form $V(r)=-% \\frac{a}{r}+\\frac{b}{r^{2}}+\\frac{\\beta \\cos ^{2}\\theta}{r^{2}\\sin ^{2}\\theta }+c$ by means of the conventional Nikiforov-Uvarov method. We give a clear recipe of how to obtain an explicit solution to the radial and angular parts of the wave functions in terms of orthogonal polynomials. The total energy of the system is different from the pseudo-Coulomb potential because of the contribution of the angular part. The general results obtained in this work can be reduced to the standard forms given in literature.

Sameer M. Ikhdair; Ramazan Sever

2007-03-06T23:59:59.000Z

453

Self-potential observations during hydraulic fracturing  

E-Print Network (OSTI)

potential measurements during hydraulic fracturing of BunterMonitoring during hydraulic fracturing using the TG-2 well,fracture processes in hydraulic fracturing, Quarterly Report

Moore, Jeffrey R.; Glaser, Steven D.

2008-01-01T23:59:59.000Z

454

Self-potential observations during hydraulic fracturing  

E-Print Network (OSTI)

potential measurements during hydraulic fracturing of BunterSP response during hydraulic fracturing. Citation: Moore, J.observations during hydraulic fracturing, J. Geophys. Res. ,

Moore, J R; Glaser, Steven D

2007-01-01T23:59:59.000Z

455

ASSESSMENT OF HOUSEHOLD CARBON FOOTPRINT REDUCTION POTENTIALS  

E-Print Network (OSTI)

Energy,  Industrial Technologies Program, Washington, D.C.    GlossaryEnergy Efficient Technology Potentials. 31 Conclusions and Recommendations 42 References. 45 Glossary .

Masanet, Eric

2010-01-01T23:59:59.000Z

456

Variability in electricity demand highlights potential roles ...  

U.S. Energy Information Administration (EIA)

These technologies convert electricity into another form of energy for storage: the potential energy in water pumped uphill to a reservoir and in compressed air, ...

457

Exactly Solvable Potentials and Quantum Algebras  

E-Print Network (OSTI)

Self-similar potentials and corresponding symmetry algebras are briefly discussed. Talk presented at the XIXth ICGTMP, Salamanca, 29 June - 4July 1992.

Spiridonov, V P

1992-01-01T23:59:59.000Z

458

The Higgs discovery potential of ATLAS  

E-Print Network (OSTI)

Higgs boson production and decay at the LHC is described, together with related ATLAS search channels, in order to provide an overview of the ATLAS Higgs discovery potential.

Christopher Collins-Tooth

2007-12-10T23:59:59.000Z

459

Downhole Sensor Holds Transformative Potential - Energy ...  

SiC is a class of wide-bandgap semiconducting material that holds transformative potential not only for high-temperature electronics but also for ...

460

Estimating Mitigation Potential of Agricultural Projects: an...  

Open Energy Info (EERE)

Tool (EX-ACT) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Brazil-Estimating Mitigation Potential of Agricultural Projects: an Application of the...

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461

Atomistic Potentials and the Future of Nanomaterials ...  

Science Conference Proceedings (OSTI)

... It is therefore essential that engineers and researchers know which interatomic potentials are available and how well they ... Facilities/Tools Used: ...

2013-07-18T23:59:59.000Z

462

OpenEI - renewable energy potential  

Open Energy Info (EERE)

http:en.openei.orgdatasetstaxonomyterm8560 en Offshore Wind Resource http:en.openei.orgdatasetsnode921

Global Wind Potential Supply Curves by Country, Class, and...

463

Energy dependence of nucleon-nucleon potentials  

E-Print Network (OSTI)

We investigate the energy dependence of potentials defined through the Bethe-Salpeter wave functions. We analytically evaluate such a potential in the Ising field theory in 2 dimensions and show that its energy dependence is weak at low energy. We then numerically calculate the nucleon-nucleon potential at non-zero energy using quenched QCD with anti-periodic boundary condition. In this case we also observe that the potentials are almost identical at $E\\simeq 0$ and $E\\simeq 50$ MeV, where $E$ is the center of mass kinetic energy.

Sinya Aoki; Janos Balog; Tetsuo Hatsuda; Noriyoshi Ishii; Keiko Murano; Hidekatsu Nemura; Peter Weisz

2008-12-03T23:59:59.000Z

464

ASSESSMENT OF HOUSEHOLD CARBON FOOTPRINT REDUCTION POTENTIALS  

E-Print Network (OSTI)

which will help California energy and policy analysts and KEMA (2008).  California Energy Efficiency Potential Final Report.  California Energy Commission, Sacramento, 

Masanet, Eric

2010-01-01T23:59:59.000Z

465

Discrete Choice Analysis: Hydrogen FCV Demand Potential  

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

Choice Analysis: H 2 FCV Demand Potential Cory Welch H 2 Scenario Analysis Workshop Washington, D.C. , January 31, 2007 2 Overview * Motivation for work * Methodology * Relative...

466

On the Chemical Potential of D-instantons in c=0 Noncritical String Theory  

E-Print Network (OSTI)

We study the chemical potential of D-instantons in c=0 noncritical string theory. In a recent work(hep-th/0405076), it was shown that the chemical potential can be calculated using the one matrix model. The calculation was done using the method of orthogonal polynomials and the authors obtained a universal value in the double scaling limit. We present an alternative method to calculate this value.

Nobuyuki Ishibashi; Atsushi Yamaguchi

2005-03-25T23:59:59.000Z

467

Uncertainty and Sensitivity of Contaminant Travel Times from the Upgradient Nevada Test Site to the Yucca Mountain Area  

Science Conference Proceedings (OSTI)

Yucca Mountain (YM), Nevada, has been proposed by the U.S. Department of Energy as the nation’s first permanent geologic repository for spent nuclear fuel and highlevel radioactive waste. In this study, the potential for groundwater advective pathways from underground nuclear testing areas on the Nevada Test Site (NTS) to intercept the subsurface of the proposed land withdrawal area for the repository is investigated. The timeframe for advective travel and its uncertainty for possible radionuclide movement along these flow pathways is estimated as a result of effective-porosity value uncertainty for the hydrogeologic units (HGUs) along the flow paths. Furthermore, sensitivity analysis is conducted to determine the most influential HGUs on the advective radionuclide travel times from the NTS to the YM area. Groundwater pathways are obtained using the particle tracking package MODPATH and flow results from the Death Valley regional groundwater flow system (DVRFS) model developed by the U.S. Geological Survey (USGS). Effectiveporosity values for HGUs along these pathways are one of several parameters that determine possible radionuclide travel times between the NTS and proposed YM withdrawal areas. Values and uncertainties of HGU porosities are quantified through evaluation of existing site effective-porosity data and expert professional judgment and are incorporated in the model through Monte Carlo simulations to estimate mean travel times and uncertainties. The simulations are based on two steady-state flow scenarios, the pre-pumping (the initial stress period of the DVRFS model), and the 1998 pumping (assuming steady-state conditions resulting from pumping in the last stress period of the DVRFS model) scenarios for the purpose of long-term prediction and monitoring. The pumping scenario accounts for groundwater withdrawal activities in the Amargosa Desert and other areas downgradient of YM. Considering each detonation in a clustered region around Pahute Mesa (in the NTS operational areas 18, 19, 20, and 30) under the water table as a particle, those particles from the saturated zone detonations were tracked forward using MODPATH to identify hydraulically downgradient groundwater discharge zones and to determine the particles from which detonations will intercept the proposed YM withdrawal area. Out of the 71 detonations in the saturated zone, the flowpaths from 23 of the 71 detonations will intercept the proposed YM withdrawal area under the pre-pumping scenario. For the 1998 pumping scenario, the flowpaths from 55 of the 71 detonations will intercept the proposed YM withdrawal area. Three different effective-porosity data sets compiled in support of regional models of groundwater flow and contaminant transport developed for the NTS and the proposed YM repository are used. The results illustrate that mean minimum travel time from underground nuclear testing areas on the NTS to the proposed YM repository area can vary from just over 700 to nearly 700,000 years, depending on the locations of the underground detonations, the pumping scenarios considered, and the effective-porosity value distributions used. Groundwater pumping scenarios are found to significantly impact minimum particle travel time from the NTS to the YM area by altering flowpath geometry. Pumping also attracts many more additional groundwater flowpaths from the NTS to the YM area. The sensitivity analysis further illustrates that for both the pre-pumping and 1998 pumping scenarios, the uncertainties in effective-porosity values for five of the 27 HGUs considered account for well over 90 percent of the effective-porosity-related travel time uncertainties for the flowpaths having the shortest mean travel times to YM.

J. Zhu; K. Pohlmann; J. Chapman; C. Russell; R.W.H. Carroll; D. Shafer

2009-09-10T23:59:59.000Z

468

Electric quadrupole transitions of the Bohr Hamiltonian with the Morse potential  

E-Print Network (OSTI)

Eigenfunctions of the collective Bohr Hamiltonian with the Morse potential have been obtained by using the Asymptotic Iteration Method (AIM) for both gamma-unstable and rotational structures. B(E2) transition rates have been calculated and compared to experimental data. Overall good agreement is obtained for transitions within the ground state band, while some interband transitions appear to be systematically underpredicted in gamma-unstable nuclei and overpredicted in rotational nuclei.

I. Inci; D. Bonatsos; I. Boztosun

2011-08-04T23:59:59.000Z

469

Electric quadrupole transitions of the Bohr Hamiltonian with the Morse potential  

E-Print Network (OSTI)

Eigenfunctions of the collective Bohr Hamiltonian with the Morse potential have been obtained by using the Asymptotic Iteration Method (AIM) for both gamma-unstable and rotational structures. B(E2) transition rates have been calculated and compared to experimental data. Overall good agreement is obtained for transitions within the ground state band, while some interband transitions appear to be systematically underpredicted in gamma-unstable nuclei and overpredicted in rotational nuclei.

Inci, I; Boztosun, I

2011-01-01T23:59:59.000Z

470

Remote sensing for wind power potential: a prospector's handbook  

DOE Green Energy (OSTI)

Remote sensing can aid in identifying and locating indicators of wind power potential from the terrestrial, marine, and atmospheric environments (i.e.: wind-deformed trees, white caps, and areas of thermal flux). It is not considered as a tool for determining wind power potential. A wide variety of remotely sensed evidence is described in terms of the scale at which evidence of wind power can be identified, and the appropriate remote sensors for finding such evidence. Remote sensing can be used for regional area prospecting using small-scale imagery. The information from such small-scale imagery is most often qualitative, and if it is transitory, examination of a number of images to verify presistence of the feature may be required. However, this evidence will allow rapid screening of a large area. Medium-scale imagery provides a better picture of the evidence obtained from small-scale imagery. At this level it is best to use existing imagery. Criteria relating to land use, accessibility, and proximity of candidate sites to nearby transmission lines can also be effectively evaluated from medium-scale imagery. Large-scale imagery provides the most quantitative evidence of the strength of wind. Wind-deformed trees can be identified at a large number of sites using only a few hours in locally chartered aircraft. A handheld 35mm camera can adequately document any evidence of wind. Three case studies that employ remote sensing prospecting techniques are described. Based on remotely sensed evidence, the wind power potential in three geographically and climatically diverse areas of the United States is estimated, and the estimates are compared to actual wind data in those regions. In addition, the cost of each survey is discussed. The results indicate that remote sensing for wind power potential is a quick, cost effective, and fairly reliable method for screening large areas for wind power potential.

Wade, J.E.; Maule, P.A.; Bodvarsson, G.; Rosenfeld, C.L.; Woolley, S.G.; McClenahan, M.R.

1983-02-01T23:59:59.000Z

471

Analytical approach to sensitivity analysis of flutter speed in bridges considering variable deck mass  

Science Conference Proceedings (OSTI)

Design techniques based upon sensitivity analysis are not usual in the current design of suspension bridges. However, sensitivity analysis has been proved to be a useful tool in the car and aircraft industries. Evaluation of sensitivity analysis is a ... Keywords: Bridge design, Flutter speed, Great Belt Bridge, Parallel processing, Sensitivity analysis, Wind engineering

Félix Nieto; Santiago Hernández; José Á. Jurado; Alejandro Mosquera

2011-04-01T23:59:59.000Z

472

Understanding and comparisons of different sampling approaches for the Fourier Amplitudes Sensitivity Test (FAST)  

Science Conference Proceedings (OSTI)

Fourier Amplitude Sensitivity Test (FAST) is one of the most popular uncertainty and sensitivity analysis techniques. It uses a periodic sampling approach and a Fourier transformation to decompose the variance of a model output into partial variances ... Keywords: Fourier Amplitude Sensitivity Test, Interactions, Random balance design, Sensitivity analysis, Simple random sampling, Uncertainty analysis

Chonggang Xu; George Gertner

2011-01-01T23:59:59.000Z

473

An efficient integrated approach for global sensitivity analysis of hydrological model parameters  

Science Conference Proceedings (OSTI)

Efficient sensitivity analysis, particularly for the global sensitivity analysis (GSA) to identify the most important or sensitive parameters, is crucial for understanding complex hydrological models, e.g., distributed hydrological models. In this paper, ... Keywords: DTVGM, Global sensitivity analysis, RSMSobol' method, Response surface model, Statistical emulator

Che-Sheng Zhan; Xiao-Meng Song; Jun Xia; Charles Tong

2013-03-01T23:59:59.000Z

474

Dynamics of Conformational Transition in Thermo-Sensitive Polymers and  

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

Atomistic simulations elucidating the coil-to-globule conformational changes in thermosensitive polymers. Atomistic simulations elucidating the coil-to-globule conformational changes in thermosensitive polymers. Atomistic simulations elucidating the coil-to-globule conformational changes in thermosensitive polymers. Dynamics of Conformational Transition in Thermo-Sensitive Polymers and Hydrogels PI Name: Subramanian Sankaranarayanan PI Email: skrssank@anl.gov Institution: Argonne National Laboratory Allocation Program: ALCC Allocation Hours at ALCF: 50 Million Year: 2012 Research Domain: Materials Science Subramanian Sankaranarayanan with Argonne's Ce