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

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

63: 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...

2

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

3

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

4

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

5

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

6

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

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

1: 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 -...

7

Sensitivity of the Green Sea Turtle's Ear as Shown by Its Electrical Potentials  

Science Journals Connector (OSTI)

Both aerial and bone?conduction cochlear?potential runs demonstrated similar frequency sensitivity curves. Maximum sensitivity was in the 400?Hz region dropping off rapidly above and below. A point?source bone?stimulation cochlear?potential study of the Green Sea Turtle's head showed that the most sensitive receiving area is over the head of the columella.

Sam H. Ridgway; E. G. Wever; James G. McCormick; Jery Palin; John Anderson

1970-01-01T23:59:59.000Z

8

Phase sensitivity of slow electrons to interactions with weak potentials  

SciTech Connect

The interaction of very slow electrons with weak potentials is investigated in an exactly soluble, one-dimensional quantum mechanical model. Slow electrons are produced by a decelerating ramp potential, as in experimental mirror electron microscopy, so the electrons can interact with a weak field as they slow and reverse direction. Our model provides a wave mechanical interpretation of this turning point region and suggests the possibility of imaging optical fields utilizing the phase of electron matter waves.

Kennedy, S. M.; Jesson, D. E.; Morgan, M. J.; Smith, A. E.; Barker, P. F. [School of Physics, Monash University, Victoria, 3800 (Australia); Department of Physics, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH144AS (United Kingdom)

2006-10-15T23:59:59.000Z

9

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:

10

Aquifer heterogeneity characterization with oscillatory pumping: Sensitivity analysis and imaging potential  

E-Print Network (OSTI)

to the successful management and remediation of ground- water is our general lack of knowledge about subsurface noted, including no net water extraction during testing and robust signal measurement through signal characterization with oscillatory pumping: Sensitivity analysis and imaging potential, Water Resour. Res., 49, 5395

Barrash, Warren

11

Community-based and peace-sensitive tourism: fulfilling Nepal's potential  

E-Print Network (OSTI)

Community-based and peace-sensitive tourism: fulfilling Nepal's potential Tourism as a means of economic growth Tourism is one of the largest indus- tries in Nepal. According to the Nepal Tourism Board the insurgency was then largely confined to the western parts of Nepal. The Visit Nepal Year campaign in 1998

Richner, Heinz

12

Sensitivity analysis of potential events affecting the double-shell tank system and fallback actions  

SciTech Connect

Sensitivity analyses were performed for fall-back positions (i.e., management actions) to accommodate potential off-normal and programmatic change events overlaid on the waste volume projections and their uncertainties. These sensitivity analyses allowed determining and ranking tank system high-risk parameters and fall- back positions that will accommodate the respective impacts. This quantification of tank system impacts shows periods where tank capacity is sensitive to certain variables that must be carefully managed and/or evaluated. Identifying these sensitive variables and quantifying their impact will allow decision makers to prepare fall-back positions and focus available resources on the highest impact parameters where technical data are needed to reduce waste projection uncertainties. For noncomplexed waste, the period of capacity vulnerability occurs during the years of single-shell tank (SST) retrieval (after approximately 2009) due to the sensitivity to several variables. Ranked by importance these variables include the pretreatment rate and 200-East SST solids transfer volume. For complexed waste, the period of capacity vulnerability occurs during the period after approximately 2005 due to the sensitivity to several variables. Ranked by importance these variables include the pretreatment rate. 200-East SST solids transfer volume. complexed waste reduction factor using evaporation, and 200-west saltwell liquid porosity.

Knutson, B.J.

1996-09-27T23:59:59.000Z

13

Interatomic potentials for ionic systems with density functional accuracy based on charge densities obtained by a neural network  

E-Print Network (OSTI)

Based on an analysis of the short range chemical environment of each atom in a system, standard machine learning based approaches to the construction of interatomic potentials aim at determining directly the central quantity which is the total energy. This prevents for instance an accurate description of the energetics of systems where long range charge transfer is important as well as of ionized systems. We propose therefore not to target directly with machine learning methods the total energy but an intermediate physical quantity namely the charge density, which then in turn allows to determine the total energy. By allowing the electronic charge to distribute itself in an optimal way over the system, we can describe not only neutral but also ionized systems with unprecedented accuracy. We demonstrate the power of our approach for both neutral and ionized NaCl clusters where charge redistribution plays a decisive role for the energetics. We are able to obtain chemical accuracy, i.e. errors of less than a mil...

Ghasemi, S Alireza; Saha, Santanu; Goedecker, Stefan

2015-01-01T23:59:59.000Z

14

A dipole polarizable potential for reduced and doped CeO[subscript 2] obtained from first principles  

E-Print Network (OSTI)

In this paper we present the parameterization of a new interionic potential for stoichiometric, reduced and doped CeO[subscript 2]. We use a dipole polarizable potential (DIPPIM: the dipole polarizable ion model) and ...

Burbano, Mario

15

Comparison of heliospheric current sheet structure obtained from potential magnetic field computations and from observed polarization coronal brightness  

SciTech Connect

The report compares the structure of the heliospheric current sheet early in Sunspot Cycle 21 as computed from the observed photospheric magnetic field with a potential field approximation, and as inferred from synoptic maps of the observed coronal polarization brightness. On most of the solar rotations compared, the two methods give essentially the same results; the basic shape of the warped current sheet and the amplitude (in solar latitude) of the displacements of the sheet from the solar equator are similar. On one rotation the current sheet computed with the potential field approximation appears to be distorted by a large photospheric region of unbalanced magnetic flux.

Wilcox, J.M.; Hundhausen, A.J.

1983-02-01T23:59:59.000Z

16

A Gibbs-potential-based formulation for obtaining the response functions for a class of viscoelastic materials  

Science Journals Connector (OSTI)

...the response functions for a class of viscoelastic materials K...external stimuli under a certain class of process, such configurations...the concept to build a certain class of models. (a) The equation...potentials that have equal if not greater claim to primacy (the Gibbs...

2011-01-01T23:59:59.000Z

17

Sensitivity analysis of a directional potential drop sensor for creep monitoring  

E-Print Network (OSTI)

and irreversible thermal effects. The sensitivity of the square-electrode PD sensor to geometrical and material and mechanical stress. The specific form of degradation is material dependent, but in creep- resistant steels of the degradation process, the presence of voids and microcracks becomes more evident. For creep-resistant materials

Nagy, Peter B.

18

M. Bahrami ENSC 461 (S 11) Exergy 1 Exergy is the theoretical limit for the work potential that can be obtained from a source or  

E-Print Network (OSTI)

M. Bahrami ENSC 461 (S 11) Exergy 1 Exergy Exergy is the theoretical limit for the work potential potential, or exergy, or availability. Exergy is a property of the system-environment combination (not the system alone). Exergy of Kinetic Energy Kinetic energy can be converted to work entirely; thus: kgkJ V

Bahrami, Majid

19

Gradient-corrected exchange potential with the correct asymptotic behavior and the corresponding exchange-energy functional obtained from the virial theorem  

Science Journals Connector (OSTI)

In density-functional theory (DFT), Perdew, Parr, Levy, and Balduz [Phys. Rev. Lett. 49, 1691 (1982)] have shown that for all the electronic systems, the energy of the highest occupied molecular orbital (HOMO) is equal to the negative of the ionization potential. This equality is not recovered within the different approximations of the exchange-correlation functional proposed in the literature. The main reason is that the exchange-correlation potentials of various functionals used in DFT calculations decay rapidly to zero whereas they should exhibit a Coulombic asymptotic -1/r behavior. In this work we propose a gradient-corrected (GC) exchange potential with a correct asymptotic -1/r form for large values of r. The energy of the HOMO calculated with this potential is improved compared to the local-density approximation (LDA) and to the GC functionals widely used in the DFT. Our HOMO eigenvalues are compared to the optimized-potential-model eigenvalues which are the exact values for the exchange-only potential. Using the fact that the LDA satisfies the virial theorem, the exchange energy corresponding to this GC exchange potential can be calculated under a simple assumption.

A. Lembarki; F. Rogemond; H. Chermette

1995-11-01T23:59:59.000Z

20

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.

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

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

22

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

23

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

24

Evaluating Charge Recombination Rate in Dye-Sensitized Solar Cells from Electronic Structure Calculations  

Science Journals Connector (OSTI)

Estimating the Maximum Attainable Efficiency in Dye-Sensitized Solar Cells ... Altogether, our study provides evidence that adsorption of the sensitizer via "three anchoring sites" is a key requisite to obtain high open-circuit potentials when employed in DSSC devices, thus paving the route to the design of new and more efficient sensitizers. ... cells are discussed, considering the high photovoltaic efficiencies obtained for devices employing Ru bipyridyl sensitizer dyes in combination with iodide/tri-iodide based redox electrolytes. ...

E. Maggio; N. Martsinovich; A. Troisi

2012-03-13T23:59:59.000Z

25

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

26

Synthesis of CdSe quantum dots for quantum dot sensitized solar cell  

SciTech Connect

CdSe Quantum Dots (QDs) of size 0.85 nm were synthesized using chemical route. ZnO based Quantum Dot Sensitized Solar Cell (QDSSC) was fabricated using CdSe QDs as sensitizer. The Pre-synthesized QDs were found to be successfully adsorbed on front ZnO electrode and had potential to replace organic dyes in Dye Sensitized Solar Cells (DSSCs). The efficiency of QDSSC was obtained to be 2.06 % at AM 1.5.

Singh, Neetu, E-mail: singh.neetu1985@gmail.com; Kapoor, Avinashi [Department of Electronic Science, University of Delhi South Campus, New Delhi-110 021 (India); Kumar, Vinod [Department of Physics, University of the Free State, Bloemfontein, ZA9300 (South Africa); Mehra, R. M. [School of Engineering and Technology, Sharda University, Greater Noida-201 306, U.P. (India)

2014-04-24T23:59:59.000Z

27

The Occurrence of Potentially Habitable Planets Orbiting M Dwarfs Estimated from the Full Kepler Dataset and an Empirical Measurement of the Detection Sensitivity  

E-Print Network (OSTI)

We present an improved estimate of the occurrence rate of small planets around small stars by searching the full four-year Kepler data set for transiting planets using our own planet detection pipeline and conducting transit injection and recovery simulations to empirically measure the search completeness of our pipeline. We identified 157 planet candidates, including 2 objects that were not previously identified as Kepler Objects of Interest (KOIs). We inspected all publicly available follow-up images, observing notes, and centroid analyses, and corrected for the likelihood of false positives. We evaluate the sensitivity of our detection pipeline on a star-by-star basis by injecting 2000 transit signals in the light curve of each target star. For periods shorter than 50 days, we found an occurrence rate of 0.57 (+0.06/-0.05) Earth-size planets (1-1.5 Earth radii) and 0.51 (+0.07/-0.06) super-Earths (1.5-2 Earth radii) per M dwarf. Within a conservatively defined habitable zone based on the moist greenhouse i...

Dressing, Courtney D

2015-01-01T23:59:59.000Z

28

Sensitive Species  

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

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. The Sensitive Species Best...

29

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

30

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

31

Lattice Boltzmann model for simulating temperature-sensitive ferrofluids  

Science Journals Connector (OSTI)

In this paper, a lattice Boltzmann model for simulating temperature-sensitive ferrofluids is presented. The lattice Boltzmann equation for modeling the magnetic field is formulated using a scalar magnetic potential. Introducing a time derivative into the original elliptic equation for the scalar potential leads to an advection-diffusion equation, with an effective velocity determined by the temperature gradient. The time derivative is multiplied by an adjustable preconditioning parameter to ensure that the lattice Boltzmann solution remain close to a solution of the original elliptic equation for the scalar potential. To test the present lattice Boltzmann model, numerical simulations for the thermomagnetic nature convection of the ferrofluids in a cubic cavity are carried out. Good agreement between the obtained results and experimental data shows that the present lattice Boltzmann model is promising for studying temperature-sensitive ferrofluid flows.

Xiao-Dong Niu; Hiroshi Yamaguchi; Keisuke Yoshikawa

2009-04-28T23:59:59.000Z

32

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,

33

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

34

Obtaining accurate measurement using redundant sensors  

E-Print Network (OSTI)

Conventional wisdom suggests to accomplish accurate measurement, the sensors used must have high precision and excellent dynamic range. This generally results in sensor systems that are complex, costly, and often sensitive to environmental factors...

Burnett, Michael Scott

2012-06-07T23:59:59.000Z

35

A New Direction in Dye-Sensitized Solar Cells Redox Mediator Development: In Situ Fine-Tuning of the Cobalt(II)/(III) Redox Potential through Lewis Base Interactions  

Science Journals Connector (OSTI)

Representative orange or orange-red prismatic crystals of 2a, 3a, and 3b were mounted on an Oxford Gemini Ultra CCD diffractometer equipped with an Oxford Cryosystems 700 Cryostream and cooled to 123(1) K. Data were collected with Mo K? radiation (? = 0.71073 Å) and processed with CrysAlisPro software; Lorentz, polarization, and absorption corrections (multiscan) were applied. ... Optimized nanostructure sensitized with MK-2 dye shows efficiency of 5.5% at 1 sun. ...

Muhammad K. Kashif; Jordan C. Axelson; Noel W. Duffy; Craig M. Forsyth; Christopher J. Chang; Jeffrey R. Long; Leone Spiccia; Udo Bach

2012-09-11T23:59:59.000Z

36

Focus Sensitive Coordination  

E-Print Network (OSTI)

This thesis investigates the role of the Focus Sensitive Operators (FSOs) even and also when found inside of a coordination. Coordinations of this form are called Focus Sensitive Coordinations (FSC) and include or even, ...

Hulsey, Sarah McNearney

2008-01-01T23:59:59.000Z

37

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:

38

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

39

70Ge(p,gamma)71As and 76Ge(p,n)76As cross sections for the astrophysical p process: sensitivity of the optical proton potential at low energies  

E-Print Network (OSTI)

The cross sections of the 70Ge(p,gamma)71As and 76Ge(p,n)76As reactions have been measured with the activation method in the Gamow window for the astrophysical p process. The experiments were carried out at the Van de Graaff and cyclotron accelerators of ATOMKI. The cross sections have been derived by measuring the decay gamma-radiation of the reaction products. The results are compared to the predictions of Hauser-Feshbach statistical model calculations using the code NON-SMOKER. Good agreement between theoretical and experimental S factors is found. Based on the new data, modifications of the optical potential used for low-energy protons are discussed.

G. G. Kiss; Gy. Gyurky; Z. Elekes; Zs. Fulop; E. Somorjai; T. Rauscher; M. Wiescher

2007-11-07T23:59:59.000Z

40

ERCOT's Weather Sensitive Demand Response Pilot  

E-Print Network (OSTI)

ERCOT’s Weather Sensitive Demand Response Pilot CATEE 12-17-13 ESL-KT-13-12-21 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Disclaimer The information contained in this report has been obtained from... Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Weather Sensitive Loads Pilot CATEE 121313 - Tim Carter 713-646-5476 tim.carter@constellation.com4 Constellation's Integrated Power Products © 2013. Constellation Energy Resources, LLC...

Carter, T.

2013-01-01T23:59:59.000Z

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.


41

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

SciTech Connect

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

42

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

43

Dye?sensitized Solar Cells for Solar Energy Harvesting  

Science Journals Connector (OSTI)

Dye?sensitized solar cells (DSSCs) also known as Gratzel cells have attracted the interests of researchers to a great extent because of its cost effective and easy manufacturing process without involving highly sophisticated lithographic technique and high cost raw materials as usually seen in conventional solar cell. Based on simple photo?electrochemical process it has got immense potential in converting solar energy to electrical power in remote and desert area where the supply of conventional power is not possible. The overall peak power?production efficiency of dye?sensitized solar cells has been reported around 11 percent so they are best suited to low?density applications and the price?to?performance ratio obtained through these solar cells is superior to others. DSSCs have ability to absorb even diffused sunlight and therefore work in cloudy whether as well without much impact over the efficiency. The present communication deals with a review of our work on DSSCs wherein we have used cost effective natural dyes/pigments as a sensitizer of nc?TiO2 and discussed about various key factors affecting the conversion efficiency of DSSC.

M. S. Roy; Y. S. Deol; Manish Kumar; Narottam Prasad; Yojana Janu

2011-01-01T23:59:59.000Z

44

Obtaining the best subset in regression analysis  

E-Print Network (OSTI)

and patience during this undertaking. 111 TABLE OF CONTENTS Chapte r Page I. INTRODUCTION Statement of the Problem. Review of the Literature Summary of Research 1 2 6 DEVELOPMENT OF THE SELECTION PROCEDURE Preliminary Remarks The Selection... = p'B - p' Bk (2 () If k & r, this method of determining a is inefficient since it re- quires the inversion of the k x k matrix C . In Lemma 2 below, an alternate expression for a is obtained which requires only the inver- sion of an r x r matrix...

Leslie, Robert Norton

2012-06-07T23:59:59.000Z

45

Constrained sensitivity theory  

SciTech Connect

In sensitivity and uncertainty analysis of to-be-built reactors it is customary to use k-reset sensitivity functions - accounting for the combined effects of the change (or uncertainty) in the input data and of the alteration in some design variable applied to maintain criticality. Critical reactors are usually subjected to several constraints, such as power peaking factor and breeding ratio constraints, in addition to the criticality constraint. Perturbation theory formulations which can account, simultaneously, for several constraints both in critical reactors and in source driven systems (such as radiation shields and blankets of fusion devices) are presented. All the sensitivity and uncertainty analyses of source driven systems carried out so far used unconstrained sensitivity functions despite the fact that such systems can be also subjected to a variety of constraints.

Greenspan, E.; Williams, M.L.

1980-01-01T23:59:59.000Z

46

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

Energy Savers (EERE)

and enhancement update U-068:Linux Kernel SGIO ioctl Bug Lets Local Users Gain Elevated Privileges T-712: Red Hat Enterprise MRG Grid 2.0 security, bug fix and enhancement update...

47

Multiple predictor smoothing methods for sensitivity analysis.  

SciTech Connect

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

48

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

49

Phase sensitivity in electroreception  

Science Journals Connector (OSTI)

...and that pro-Electric organ discharges (EOD's) in gymnotoid electric fish show high...frequencies near that of the particular species' EOD (2, 4, 5) and very similar "tuning...Electric fish are thus most sensitive to EOD's oftheir own species and the variability...

W Heiligenberg; RA Altes

1978-03-03T23:59:59.000Z

50

Photocurrent Enhancement by Multilayered Porphyrin Sensitizers in a Photoelectrochemical Cell  

E-Print Network (OSTI)

-processable materials. One potential method for improving DSSC efficiency involves replacement of the dark cathode a very active research topic in the past two decades.8-11 Recently, DSSCs using porphyrin sensitizers

Dinolfo, Peter H.

51

NANOCOMPOSITE ENABLED SENSITIZED SOLAR CELL  

E-Print Network (OSTI)

solar cell The history of dye sensitization dates back to the photosensitization phenomenon by organic

Phuyal, Dibya

2012-01-01T23:59:59.000Z

52

Potential Energy Total electric potential energy, U, of a system of  

E-Print Network (OSTI)

Potential Energy Total electric potential energy, U, of a system of charges is obtained from of work done by the field, W*= -W. Bring q1 from , W *= 0 since no electric F yet #12;Potential Energy Total electric potential energy, U, of a system of charges is obtained from the work done by an external

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

53

Dye Regeneration Kinetics in Dye-Sensitized Solar Cells  

Science Journals Connector (OSTI)

Nevertheless, the calculated diffusion limit provides a useful estimate of the maximum attainable regeneration rate. ... Design of Organic Dyes and Cobalt Polypyridine Redox Mediators for High-Efficiency Dye-Sensitized Solar Cells ... cells are discussed, considering the high photovoltaic efficiencies obtained for devices employing Ru bipyridyl sensitizer dyes in combination with iodide/tri-iodide based redox electrolytes. ...

Torben Daeneke; Attila J. Mozer; Yu Uemura; Satoshi Makuta; Monika Fekete; Yasuhiro Tachibana; Nagatoshi Koumura; Udo Bach; Leone Spiccia

2012-09-27T23:59:59.000Z

54

SEU sensitive depth in a submicron SRAM technology  

SciTech Connect

This work determines experimentally and by simulation the SEU sensitive depth in a 0.6 {micro}m SRAM technology. A good correlation is obtained between the two studies in the case of heavy ions deposing energy close to the critical energy. Other simulation results complete the first investigation by studying the minimum sensitive depth for ions deposing higher energies (at greater LET).

Detcheverry, C.; Bruguier, G.; Palau, J.M.; Gasiot, J. [Univ. Montpellier II (France)] [Univ. Montpellier II (France); Ecoffet, R. [CNES, Toulouse (France)] [CNES, Toulouse (France); Duzellier, S. [DERTS, Toulouse (France)] [DERTS, Toulouse (France); Barak, J.; Lifshitz, Y. [Soreq NRC, Yahvne (Israel)] [Soreq NRC, Yahvne (Israel)

1998-06-01T23:59:59.000Z

55

Recent developments in position-sensitive neutron counting  

SciTech Connect

Continuing research on advanced methods of thermal neutron detection and position sensing with gas-filled counters was aimed at improving their performance and extending the limits of their applicability. High electron drift velocities obtained from measurements on gas mixtures containing CF/sub 4/ motivated us to evaluate the properties of /sup 3/He-CF/sub 4/ and Ar-CF/sub 4/ mixtures to show that these gases have the potential of improving the count rate capability, spatial resolution, and photon discrimination of neutron PSPCs (position-sensitive proportional counters) and fission counters. In support of the U.S. National Small-Angle Neutron Scattering (SANS) Facility we developed a large-area (65-cm x 65-cm) PSPC camera. RC position encoding was chosen for simplicity of construction, but since previous experience with this encoding method had been limited to smaller PSPCs (area < 25 cm x 25 cm), the main objective of this development was to show that RC encoding parameters and construction methods could be scaled up for larger area PSPCs. The use of the new counter gas mixtures enabled the development of position-sensitive transmission line fission counters (TLFCs) for neutron flux monitoring and a one-dimensional, curved PSPC for large-angle (130/sup 0/) neutron diffraction experiments. The main objective of these developments was to extend the capabilities of the LC-encoding method by mitigating the effects of interelectrode capacitance, and thereby increase the count rate capability.

Valentine, K.H.; Kopp, M.K.; Guerrant, G.C.; Harter, J.A.

1982-01-01T23:59:59.000Z

56

Influence of different nanozeolite particles on the sensitivity of a glucose biosensor  

Science Journals Connector (OSTI)

Abstract Four types of nanozeolite (NZ) particles (Silicalite S-1, BEA, Silicalite S-1–DT, and BEA–DT) with different physicochemical properties have been used for preparation of the new glucose oxidase (GOD) biosensor. Cyclic voltammetric studies were carried out with four different Pt/NZ electrodes, and it was found that the electrode prepared with BEA–DT NZ showed the highest electroactivity. These cyclic voltammograms (CVs) were compared with the \\{CVs\\} of four Pt/NZ–GOD electrodes. The presence of the oxidoreductase (GOD) on the electrode surface was the reason for the shifting of the potential peaks and corresponding currents. The magnitudes of the cathodic peak of Pt/NZ–S-1–GOD and Pt/NZ–S-1–DT–GOD electrodes had the highest values. The surface concentration (I?) of the adsorbed electroactive species (NZ–GOD) on the electrode was estimated according to the Brown–Anson model. The pH effect on the cathodic peak potential of Pt/NZ–GOD electrodes was investigated. The influence of different nanozeolites on sensitivity of GOD biosensors was studied. The most sensitive biosensor was obtained with NZ–S-1–DT, which had a porous surface, a higher degree of hydrophobicity, and a relatively high negative charge. The sensitivity of this electrode was 1.8044 ?A L mmol?1, the concentration limit was 0.8 mmol L?1 glucose, and the linear correlation was from 2 to 18 mmol L?1 glucose.

Ruska Nenkova; Jiamin Wu; Yahong Zhang; Tzonka Godjevargova

2013-01-01T23:59:59.000Z

57

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

58

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.

Bierbaum, R; Hamada, M; Robertson, A

2011-11-01T23:59:59.000Z

59

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

Office of Environmental Management (EM)

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's...

60

Arene Trifluoromethylation: An Effective Strategy to Obtain Air...  

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

Effective Strategy to Obtain Air-Stable nType Organic Semiconductors with Tunable Optoelectronic Arene Trifluoromethylation: An Effective Strategy to Obtain Air-Stable nType...

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

Step 5b: Help Program Contractors Obtain the Necessary Equipment...  

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

b: Help Program Contractors Obtain the Necessary Equipment Step 5b: Help Program Contractors Obtain the Necessary Equipment In addition to equipment for installing energy...

62

The Snell law for quaternionic potentials  

SciTech Connect

By using the analogy between optics and quantum mechanics, we obtain the Snell law for the planar motion of quantum particles in the presence of quaternionic potentials.

De Leo, Stefano, E-mail: deleo@ime.unicamp.br [Department of Applied Mathematics, State University of Campinas, São Paulo (Brazil); Ducati, Gisele C., E-mail: ducati@ufabc.edu.br [CMCC, Universidade Federal do ABC, São Paulo (Brazil)

2013-12-15T23:59:59.000Z

63

SECURITY ANALYSIS OF PROPOSEDTRAVELTO SENSITIVE COUNTRIES | Department...  

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

SECURITY ANALYSIS OF PROPOSEDTRAVELTO SENSITIVE COUNTRIES SECURITY ANALYSIS OF PROPOSEDTRAVELTO SENSITIVE COUNTRIES Form is used to document travel to sensitive countries. SECURITY...

64

Silane Modification of Glass and Silica Surfaces to Obtain Equally...  

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

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

65

Sensitivity Analysis for Decision Boundaries  

Science Journals Connector (OSTI)

A novel approach is presented to visualize and analyze decision boundaries for feedforward neural networks. First order sensitivity analysis of the neural network output function with respect to input perturbations is used to visualize the position ... Keywords: decision boundary, feature extraction, feedforward neural network, irrelevant parameters, pruning, sensitivity analysis

A. P. Engelbrecht

1999-12-01T23:59:59.000Z

66

Lab obtains approval to begin design on new radioactive waste...  

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

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...

67

OBTAINING LAWS OF THERMODYNAMICS FOR IDEAL GASES USING ELASTIC COLLISIONS  

E-Print Network (OSTI)

OBTAINING LAWS OF THERMODYNAMICS FOR IDEAL GASES USING ELASTIC COLLISIONS STEPHEN MONTGOMERY law of expansion of ideal gases. 1. The Second Law of Thermodynamics A thermally isolated container-SMITH AND HANNAH MORGAN Abstract. The purpose of this note is to see to what extent ideal gas laws can be obtained

Montgomery-Smith, Stephen

68

Molecular potentials and relaxation dynamics  

SciTech Connect

The use of empirical pseudopotentials, in evaluating interatomic potentials, provides an inexpensive and convenient method for obtaining highly accurate potential curves and permits the modeling of core-valence correlation, and the inclusion of relativistic effects when these are significant. Recent calculations of the X/sup 1/..sigma../sup +/ and a/sup 3/..sigma../sup +/ states of LiH, NaH, KH, RbH, and CsH and the X/sup 2/..sigma../sup +/ states of their anions are discussed. Pseudopotentials, including core polarization terms, have been used to replace the core electrons, and this has been coupled with the development of compact, higly-optimized basis sets for the corresponding one- and two-electron atoms. Comparisons of the neutral potential curves with experiment and other ab initio calculations show good agreement (within 1000 cm/sup -1/ over most of the potential curves) with the difference curves being considerably more accurate. In the method of computer molecular dynamics, the force acting on each particle is the resultant of all interactions with other atoms in the neighborhood and is obtained as the derivative of an effective many-body potential. Exploiting the pseudopotential approach, in obtaining the appropriate potentials may be very fruitful in the future. In the molecular dynamics example considered here, the conventional sum-of-pairwise-interatomic-potentials (SPP) approximation is used with the potentials derived either from experimental spectroscopic data or from Hartree-Fock calculations. The problem is the collisional de-excitation of vibrationally excited molecular hydrogen at an Fe surface. The calculations have been carried out for an initial vibrotational state v = 8, J = 1 and a translational temperature corresponding to a gas temperature of 500/sup 0/K. Different angles of approach and different initial random impact points on the surface have been selected. For any given collision with the wall, the molecule may pick up or lose vibrotatonal and translational energy.

Karo, A.M.

1981-05-18T23:59:59.000Z

69

Dye-Sensitized Solar Cells  

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

DOE supports research and development projects aimed at increasing the efficiency and lifetime of dye-sensitized solar cells (DSSCs). Below are a list of current projects, summary of the benefits,...

70

CO2 Sequestration Potential of Texas Low-Rank Coals  

SciTech Connect

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (ECBM) recovery as an added benefit of sequestration. In this reporting period we revised all of the economic calculations, participated in technology transfer of project results, and began working on project closeout tasks in anticipation of the project ending December 31, 2005. In this research, we conducted five separate simulation investigations, or cases. These cases are (1) CO{sub 2} sequestration base case scenarios for 4,000-ft and 6,200-ft depth coal beds in the Lower Calvert Bluff Formation of east-central Texas, (2) sensitivity study of the effects of well spacing on sequestration, (3) sensitivity study of the effects of injection gas composition, (4) sensitivity study of the effects of injection rate, and (5) sensitivity study of the effects of coal dewatering prior to CO{sub 2} injection/sequestration. Results show that, in most cases, revenue from coalbed methane production does not completely offset the costs of CO{sub 2} sequestration in Texas low-rank coals, indicating that CO{sub 2} injection is not economically feasible for the ranges of gas prices and carbon credits investigated. The best economic performance is obtained with flue gas (13% CO{sub 2} - 87% N{sub 2}) injection, as compared to injection of 100% CO{sub 2} and a mixture of 50% CO{sub 2} and 50% N{sub 2}. As part of technology transfer for this project, we presented results at the West Texas Geological Society Fall Symposium in October 2005 and at the COAL-SEQ Forum in November 2005.

Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

2006-03-01T23:59:59.000Z

71

Dynamic Sensitivity of ATP-sensitive K Channels to ATP* Received for publication, March 16, 2001, and in revised form, April 17, 2001  

E-Print Network (OSTI)

Dynamic Sensitivity of ATP-sensitive K Channels to ATP* Received for publication, March 16, 2001, Oxford OX1 3PT, United Kingdom ATP and MgADP regulate KATP channel activity and hence potentially couple-cell activity can be observed with widely varying apparent submembrane [ATP] ([ATP]sub). Meta- bolic inhibition

Pike, Linda J.

72

Sensitivity relationships in energetic materials  

SciTech Connect

In searching for new explosives one is most concerned with performance (detonation velocity and pressure), thermal properties, and sensitivity. Whether a new candidate explosive is ultimately widely used may well be determined by other factors, such as cost, toxicity, melting point, etc., but the initial research effort is guided by the trinity of performance, thermal stability, and sensitivity. This presents a difficult multifactoral problem in assessing the various molecular properties that contribute to each of these principal selection criteria. For instance, detonation velocity is affected by density, elemental composition, and heat of formation. These factors must be varied together in such a way as to maximize the combined effect on performance. We have shown a relationship between impact and shock sensitivity and illustrated how a sensitivity index based on oxygen balance can be used to estimate sensitivity in closely related series of molecules. It is shown that the critical temperature of an explosive calculated by the Frank-Kamenetskii equation correlated fairly well with the shock sensitivity of the material. This supports the idea that the shock or impact initiation of an explosive is primarily a thermal event and not dominated by pressure driven chemistry. The concept of the ''trigger linkage'' in explosives is discussed and it is pointed out that insensitive explosives will require early chemistry that is thermomechanically neutral or endothermic and leads to the build-up of later strongly exothermic chemistry.

Storm, C.B.; Stine, J.R.; Kramer, J.F.

1989-01-01T23:59:59.000Z

73

A black potential for spin less particles  

E-Print Network (OSTI)

We consider the most general non-Hermitian Hulthen potential to study the scattering of spin-less relativistic particles. The conditions for CC, SS and CPA are obtained analytically for this potential. We show that almost total absorption occurs for entire range of incidence energy for certain parameter ranges of the potential and hence term this as `black potential'. Time reversed of the same potential shows perfect emission for the entire range of particle energy. We also present the classical analog of this potential in terms of waveguide cross section.

Ananya Ghatak; Mohammad Hasan; Bhabani Prasad Mandal

2014-12-02T23:59:59.000Z

74

An important challenge in magnetic fusion research is to obtain...  

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

Ways to reduce your tokamak heating bill: Gaining control of edge transport barriers on Alcator C-Mod A crucial challenge in magnetic fusion is to obtain high energy confinement in...

75

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

76

Vibration Testing of Bridge Stay Cables to Obtain Damping Values  

Science Journals Connector (OSTI)

This paper discusses a series of tests performed on a cable stayed bridge in British Columbia, Canada to obtain the cable damping properties. Free vibration tests were performed on selected cables, in two phases:...

Martin E. Turek; Carlos E. Ventura; Khaled Shawwaf

2011-01-01T23:59:59.000Z

77

Electron beam method and apparatus for obtaining uniform discharges in electrically pumped gas lasers  

DOE Patents (OSTI)

A method and apparatus for obtaining uniform, high-energy, large-volume electrical discharges in the lasing medium of a gas laser whereby a high-energy electron beam is used as an external ionization source to ionize substantially the entire volume of the lasing medium which is then readily pumped by means of an applied potential less than the breakdown voltage of the medium. The method and apparatus are particularly useful in CO.sub.2 laser systems.

Fenstermacher, Charles A. (Los Alamos, NM); Boyer, Keith (Los Alamos, NM)

1986-01-01T23:59:59.000Z

78

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.

79

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.

80

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.

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

OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I  

E-Print Network (OSTI)

OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I Employees at the University of Hawai`i fall into one of four distinct categories of employment ­ civil service, faculty, administrative of Campus Security Policy and Campus Crime Statistics Act, annual campus crime statistics for the University

Olsen, Stephen L.

82

Brain Mapping Using Topology Graphs Obtained by Surface Segmentation  

E-Print Network (OSTI)

Brain Mapping Using Topology Graphs Obtained by Surface Segmentation Fabien Vivodtzev1 , Lars@ucdavis.edu Summary. Brain mapping is a technique used to alleviate the tedious and time- consuming process of annotating brains by mapping existing annotations from brain atlases to individual brains. We introduce

Linsen, Lars

83

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.

84

Antimicrobial Treatment of Heat Sensitive Products by Atmospheric Pressure Plasma Sources  

Science Journals Connector (OSTI)

The technological potential of non-thermal plasmas for the antimicrobial treatment of heat sensitive ... within the last years the realization of industrial plasma-based decontamination or sterilization technolog...

R. Brandenburg; U. Krohmann; M. Stieber…

2008-01-01T23:59:59.000Z

85

Sensitivity Study of Physical Limits on Ground Motion at Yucca Mountain  

E-Print Network (OSTI)

1 Sensitivity Study of Physical Limits on Ground Motion at Yucca Mountain Benchun Duan1 and Steven investigate physical3 limits at Yucca Mountain, Nevada, and assess sensitivities due to uncertainties in fault (e.g.,28 Bommer, 2002; Bommer et al., 2004).29 The 1998 PSHA for Yucca Mountain, a potential high

Duan, Benchun

86

Scalar potentials out of canonical quantum cosmology  

E-Print Network (OSTI)

Using canonical quantization of a flat FRW cosmological model containing a real scalar field $\\phi$ endowed with a scalar potential $V(\\phi)$, we are able to obtain exact and semiclassical solutions of the so called Wheeler-DeWitt equation for a particular family of scalar potentials. Some features of the solutions and their classical limit are discussed.

W. Guzman; M. Sabido; J. Socorro; L. Arturo Urena-Lopez

2005-06-06T23:59:59.000Z

87

Cost-Sensitive Test Strategies Victor S. Sheng, Charles X. Ling  

E-Print Network (OSTI)

Cost-Sensitive Test Strategies Victor S. Sheng, Charles X. Ling Department of Computer Science cost of medical tests and misdiagnosis. In this paper, we design cost-sensitive machine learning learning whose values may be obtained at cost (attribute cost), and misdiagnoses are like

Ling, Charles X.

88

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 for a female northern elephant seal (Mirounga angustirostris). Hearing sensitivity in air was generally poor. Kastak and R.J. Schusterman Abstract: In-air and underwater sound detection thresholds were obtained

Reichmuth, Colleen

89

Parametric interatomic potential for graphene  

Science Journals Connector (OSTI)

A parametric interatomic potential is constructed for graphene. The potential energy consists of two parts: a bond energy function and a radial interaction energy function. The bond energy function is based on the Tersoff-Brenner potential model. It includes angular terms and explicitly accounts for flexural deformation of the lattice normal to the plane of graphene. It determines the cohesive energy of graphene and its equilibrium lattice constant. The radial energy function has been chosen such that it does not contribute to the binding energy or the equilibrium lattice constant but contributes to the interatomic force constants. The range of interaction of each atom extends up to its fourth-neighbor atoms in contrast to the Tersoff-Brenner potential, which extends only up to second neighbors. The parameters of the potential are obtained by fitting the calculated values to the cohesive energy, lattice constant, elastic constants, and phonon frequencies of graphene. The values of the force constants between an atom and other atoms that are within its fourth-neighbor distance are calculated. Analytical expressions are given for the elastic constants and the flexural rigidity of graphene. The flexural rigidity of the graphene lattice is found to be 2.13 eV, which is much higher than 0.797 eV calculated earlier using the Tersoff-Brenner potential.

V. K. Tewary and B. Yang

2009-02-27T23:59:59.000Z

90

Turbulence Patch Identification in Potential Density or Temperature Profiles  

Science Journals Connector (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

91

Analyzing the Sensitivity of Hydrogen Vehicle Sales to Consumers' Preferences  

SciTech Connect

The success of hydrogen vehicles will depend on consumer behavior as well as technology, energy prices and public policy. This study examines the sensitivity of the future market shares of hydrogen-powered vehicles to alternative assumptions about consumers preferences. The Market Acceptance of Advanced Automotive Technologies model was used to project future market shares. The model has 1,458 market segments, differentiated by travel behavior, geography, and tolerance to risk, among other factors, and it estimates market shares for twenty advanced power-train technologies. The market potential of hydrogen vehicles is most sensitive to the improvement of drive train technology, especially cost reduction. The long-run market success of hydrogen vehicles is less sensitive to the price elasticity of vehicle choice, how consumers evaluate future fuel costs, the importance of fuel availability and limited driving range. The importance of these factors will likely be greater in the early years following initial commercialization of hydrogen vehicles.

Greene, David L [ORNL] [ORNL; Lin, Zhenhong [ORNL] [ORNL; Dong, Jing [Iowa State University] [Iowa State University

2013-01-01T23:59:59.000Z

92

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

1980-03-04T23:59:59.000Z

93

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

94

Monitoring of saline tracer movement with vertically distributed self-potential measurements at the HOBE agricultural test site, Voulund, Denmark  

E-Print Network (OSTI)

The self-potential (SP) method is sensitive to water fluxes in saturated and partially saturated porous media, such as those associated with rainwater infiltration and groundwater recharge. We present a field-based study at the Voulund agricultural test site, Denmark, that is, to the best of our knowledge, the first to focus on the vertical self-potential distribution prior to and during a saline tracer test. A coupled hydrogeophysical modeling framework is used to simulate the SP response to precipitation and saline tracer infiltration. A layered hydrological model is first obtained by inverting dielectric and matric potential data. The resulting model that compares favorably with electrical resistance tomography models is subsequently used to predict the SP response. The electrokinetic contribution (caused by water fluxes in a charged porous soil) is modeled by an effective excess charge approach that considers both water saturation and pore water salinity. Our results suggest that the effective excess char...

Jougnot, Damien; Haarder, Eline B; Looms, Majken C

2015-01-01T23:59:59.000Z

95

Multiaxial low-cycle fatigue damage evaluation using a. c. potential method for alloy 738LC superalloy  

SciTech Connect

This paper studies tension/torsion multiaxial low-cycle fatigue lives and creep-fatigue damage evaluation for Alloy 738LC superalloy. Tension/torsion creep-fatigue tests were carried out using hollow cylinder specimens and multiaxial creep-fatigue lives were obtained. The Mises' equivalent strain correlated the multiaxial low cycle fatigue lives within a factor of two scatter band. An a.c. potential method is developed to detect the creep-fatigue damage associated with crack nucleation and extension. A.c. potentials at high frequencies accurately detect the creep-fatigue damage from the early stage of life while those at low frequencies detect that in the final stage of life. A.c. potentials at high frequencies detect the crack density, defined as the total crack length per unit area, and maximum crack length more sensitivity than those at low frequencies.

Isono, Yoshitada; Sakane, Masao; Ohnami, Masateru (Ritsumeikan Univ., Kyoto (Japan). Dept. of Mechanical Engineering); Fujiyama, Kazunari (Toshiba Corp., Yokohama (Japan). Heavy Apparatus Engineering Lab.)

1994-10-01T23:59:59.000Z

96

Dye-Sensitized Solar Cells  

Science Journals Connector (OSTI)

Ever since the invention of the silicon solar cell in the 1940s, people have acknowledged the ... potential of photovoltaic systems for large scale electricity production. However, semiconductor grade silicon waf...

Jan Kroon; Andreas Hinsch

2003-01-01T23:59:59.000Z

97

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

98

Spin and orbital magnetization loops obtained using magnetic Compton scattering  

SciTech Connect

We present an application of magnetic Compton scattering (MCS) to decompose a total magnetization loop into spin and orbital magnetization contributions. A spin magnetization loop of SmAl{sub 2} was measured by recording the intensity of magnetic Compton scattering as a function of applied magnetic field. Comparing the spin magnetization loop with the total magnetization one measured by a vibrating sample magnetometer, the orbital magnetization loop was obtained. The data display an anti-coupled behavior between the spin and orbital magnetizations and confirm that the orbital part dominates the magnetization.

Itou, M.; Sakurai, Y. [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan)] [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan); Koizumi, A. [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)] [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)

2013-02-25T23:59:59.000Z

99

How to obtain the National Energy Modeling System (NEMS)  

Reports and Publications (EIA)

The National Energy Modeling System (NEMS) NEMS is used by the modelers at the U. S. Energy Information Administration (EIA) who understand its structure and programming. NEMS has only been used by a few organizations outside of the EIA, because most people that requested NEMS found out that it was too difficult or rigid to use. NEMS is not typically used for state-level analysis and is poorly suited for application to other countries. However, many do obtain the model simply to use the data in its input files or to examine the source code.

2013-01-01T23:59:59.000Z

100

Synthesis, Characterization, Photophysics and Photochemistry of Pyrylogen Electron Transfer Sensitizers  

SciTech Connect

A series of new dicationic sensitizers that are hybrids of pyrylium salts and viologens has been synthesized. The electrochemical and photophysical properties of these "pyrylogen" sensitizers are reported in sufficient detail to allow rationale design of new photoinduced electron transfer reactions. The range of their reduction potentials (+0.37-+0.05V vs SCE) coupled with their range of singlet (48-63 kcal mol(-1)) and triplet (48-57kcalmol(-1)) energies demonstrate that they are potent oxidizing agents in both their singlet and triplet excited states, thermodynamically capable of oxidizing substrates with oxidation potentials as high as 3.1eV. The pyrylogens are synthesized in three steps from readily available starting materials in modest overall 11.4-22.3% yields. These sensitizers have the added advantages that: (1) their radical cations do not react on the CV timescale with oxygen bypassing the need to run reactions under nitrogen or argon and (2) have long wavelength absorptions between 413 and 523nm well out of the range where competitive absorbance by most substrates would cause a problem. These new sensitizers do react with water requiring special precautions to operate in a dry reaction environment.

Clennan, Edward L. [University of Wyoming, Laramie] [University of Wyoming, Laramie; Liao, Chen [ORNL] [ORNL

2014-01-01T23:59:59.000Z

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101

Dimension-sensitive optical responses of electromagnetically induced transparency vapor in a waveguide  

Science Journals Connector (OSTI)

A three-level EIT (electromagnetically induced transparency) vapor is used to manipulate the transparency and absorption properties of the probe light in a waveguide. The most remarkable feature of the present scheme is such that the optical responses resulting from both electromagnetically induced transparency and large spontaneous emission enhancement are very sensitive to the frequency detunings of the probe light as well as to the small changes of the waveguide dimension. The potential applications of the dimension- and dispersion-sensitive EIT responses are discussed, and the sensitivity limits of some waveguide-based sensors, including electric absorption modulator, optical switch, wavelength sensor, and sensitive magnetometer, are analyzed.

Jian Qi Shen and Sailing He

2006-12-28T23:59:59.000Z

102

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

103

Sensitivity analysis of single-layer graphene resonators using atomic finite element method  

SciTech Connect

Atomic finite element simulation is applied to study the natural frequency and sensitivity of a single-layer graphene-based resonator with CCCC, SSSS, CFCF, SFSF, and CFCF boundary conditions using the commercial code ANSYS. The fundamental frequencies of the graphene sheet are compared with the results of the previous finite element study. In addition, the sensitivity of the resonator is compared with the early work based on nonlocal elasticity theory. The results of the comparison are very good in all considered cases. The sensitivities of the resonator with different boundary conditions are obtained, and the order based on the boundary condition is CCCC > SSSS > CFCF > SFSF > CFFF. The highest sensitivity is obtained when the attached mass is located at the center of the resonator. This is useful for the design of a highly sensitive graphene-based mass sensor.

Lee, Haw-Long; Hsu, Jung-Chang; Lin, Shu-Yu; Chang, Win-Jin [Department of Mechanical Engineering, Kun Shan University, Tainan 71003, Taiwan (China)] [Department of Mechanical Engineering, Kun Shan University, Tainan 71003, Taiwan (China)

2013-09-28T23:59:59.000Z

104

Experimental results obtained with the positron-annihilation-radiation telescope of the Toulouse-Argonne collaboration  

Science Journals Connector (OSTI)

We present laboratory measurements obtained with a ground-based prototype of the focusing positron-annihilation-radiation telescope developed by the Toulouse-Argonne collaboration. This instrument has been designed to collect 511-keV photons from astrophysical sources when operating as a balloon borne observatory. The ground-based prototype consists of a crystal lens holding small cubes of diffracting germanium crystals and a 3×3 germanium array that detects the concentrated beam in the focal plane. Measured performances of the instrument at different line energies (511 and 662 keV) are presented and compared with Monte Carlo simulations; also the advantages of combining the lens with a detector array are discussed. The results obtained in the laboratory have strengthened interest in a crystal-diffraction telescope: the balloon instrument will provide a combination of high spatial and energy resolution (15 arc sec and 2 keV, respectively) with an extremely low instrumental background resulting in a sensitivity of ?3 × 10?5 photons cm?2s?1. These features will allow us to resolve a possible narrow 511-keV line both energetically and spatially within a Galactic center “microquasar” or in other broad-class annihilators.

J.E. Naya; P. von Ballmoos; R.K. Smither; M. Faiz; P.B. Fernandez; T. Graber; F. Albernhe; G. Vedrenne

1996-01-01T23:59:59.000Z

105

Optimization Online - Certificates of Optimality and Sensitivity ...  

E-Print Network (OSTI)

Dec 9, 2014 ... Certificates of Optimality and Sensitivity Analysis using Generalized Subadditive Generator Functions: A test study on Knapsack Problems.

Babak Moazzez

2014-12-09T23:59:59.000Z

106

Adjoint Sensitivity Analysis for Numerical Weather Prediction  

E-Print Network (OSTI)

Sep 2, 2011 ... Adjoint Sensitivity Analysis for Numerical Weather Prediction: Applications to ... weather variables using numerical weather prediction models.

Alexandru Cioaca

2011-09-02T23:59:59.000Z

107

Mapping Biomass Distribution Potential  

E-Print Network (OSTI)

Mapping Biomass Distribution Potential Michael Schaetzel Undergraduate ? Environmental Studies ? University of Kansas L O C A T S I O N BIOMASS ENERGY POTENTIAL o According to DOE, Biomass has the potential to provide 14% of... the nation’s power o Currently 1% of national power supply o Carbon neutral? combustion of biomass is part of the natural carbon cycle o Improved crop residue management has potential to benefit environment, producers, and economy Biomass Btu...

Schaetzel, Michael

2010-11-18T23:59:59.000Z

108

Obtaining slow beam spills at the SSC collider  

SciTech Connect

There is substantial interest in providing slow-spill external proton beams in parallel with ``interaction running`` at the 20 TeV SSC collider. The proposal is to cause a flux of particles to impinge on a target consisting of a bent crystal extraction channel. Additionally, a slow spill onto a conventional internal target could be used as a source of secondary beams for physics or test purposes and might also be used for B-physics as proposed for HERA. The ``natural`` beam loss rates from elastic and diffractive beam gas scattering and IP collisions are not sufficient to provide suitably intense external proton beams. To prevent loss of luminosity, the rf excitation is non-linear and preferentially blows up the halo of the beam. The ``target`` is to be located at a region of high dispersion forcing particles at the edge of the momentum space onto the target. T. Lohse in this workshop has described a proposed internal target to be used at HERA that will not employ rf excitation but will use the finite loss rates observed at the HERA machine. The Hera losses are caused by a variety of sources in addition to beam gas scattering or IP interactions. Initially, the beam lifetime at HERA was too short to obtain satisfactory integrated luminosities. Subsequently, through careful attention to detail, the beam lifetime was increased to > 20 hours. Even with these changes, present loss rates provide the required intensity onto an internal target. The Tevatron and SPS proton anti-proton colliders have had similar experiences with their investigations of loss rates and also find that beam lifetimes may be substantially shorter than expected solely from beam gas and IP interactions. This paper proposes deliberately introducing controlled errors li

Ritson, D.

1993-08-01T23:59:59.000Z

109

Potential energy surfaces for cluster emitting nuclei  

SciTech Connect

Potential energy surfaces are calculated by use of the most advanced asymmetric two-center shell model that allows us to obtain shell-and-pairing corrections that are added to the Yukawa-plus-exponential model deformation energy. Shell effects are of crucial importance for the experimental observation of spontaneous disintegration by heavy-ion emission. Results for {sup 222}Ra, {sup 232}U, {sup 236}Pu, and {sup 242}Cm illustrate the main ideas and show for the first time, for a cluster emitter, a potential barrier obtained by use of the macroscopic-microscopic method.

Poenaru, Dorin N.; Gherghescu, Radu A. [Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest-Magurele (Romania); Frankfurt Institute for Advanced Studies, J. W. Goethe Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany); Greiner, Walter [Frankfurt Institute for Advanced Studies, J. W. Goethe Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany)

2006-01-15T23:59:59.000Z

110

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

111

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

112

Dispersion cancellation with phase-sensitive Gaussian-state light  

SciTech Connect

Franson's paradigm for nonlocal dispersion cancellation [J. D. Franson, Phys. Rev. A 45, 3126 (1992)] is studied using two kinds of jointly Gaussian-state signal and reference beams with phase-sensitive cross correlations. The first joint signal-reference state is nonclassical, with a phase-sensitive cross correlation that is at the ultimate quantum-mechanical limit. It models the outputs obtained from continuous-wave spontaneous parametric down-conversion. The second joint signal-reference state is classical--it has a proper P representation--with a phase-sensitive cross correlation that is at the limit set by classical physics. Using these states we show that a version of Franson's nonlocal dispersion cancellation configuration has essentially identical quantum and classical explanations except for the contrast obtained, which is much higher in the quantum case than it is in the classical case. This work bears on Franson's recent article [J. D. Franson, Phys. Rev. A 80, 032119 (2009)], which asserts that there is no classical explanation for all the features seen in quantum nonlocal dispersion cancellation.

Shapiro, Jeffrey H. [Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2010-02-15T23:59:59.000Z

113

Pistons modeled by potentials  

E-Print Network (OSTI)

In this article we consider a piston modelled by a potential in the presence of extra dimensions. We analyze the functional determinant and the Casimir effect for this configuration. In order to compute the determinant and Casimir force we employ the zeta function scheme. Essentially, the computation reduces to the analysis of the zeta function associated with a scalar field living on an interval $[0,L]$ in a background potential. Although, as a model for a piston, it seems reasonable to assume a potential having compact support within $[0,L]$, we provide a formalism that can be applied to any sufficiently smooth potential.

Guglielmo Fucci; Klaus Kirsten; Pedro Morales

2011-06-03T23:59:59.000Z

114

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.

115

potential wave energy  

Science Journals Connector (OSTI)

potential wave energy ? potentielle Wellenenergie f [Der für die Auslenkung des Wasserspiegels zum Ruhewasserspiegel erforderliche Teil der Wellenenergie, die mit der Wellengeschwindigkeit fortbewegt...

2014-08-01T23:59:59.000Z

116

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

117

Benchmark On Sensitivity Calculation (Phase III)  

SciTech Connect

The sensitivities of the keff eigenvalue to neutron cross sections have become commonly used in similarity studies and as part of the validation algorithm for criticality safety assessments. To test calculations of the sensitivity coefficients, a benchmark study (Phase III) has been established by the OECD-NEA/WPNCS/EG UACSA (Expert Group on Uncertainty Analysis for Criticality Safety Assessment). This paper presents some sensitivity results generated by the benchmark participants using various computational tools based upon different computational methods: SCALE/TSUNAMI-3D and -1D, MONK, APOLLO2-MORET 5, DRAGON-SUSD3D and MMKKENO. The study demonstrates the performance of the tools. It also illustrates how model simplifications impact the sensitivity results and demonstrates the importance of 'implicit' (self-shielding) sensitivities. This work has been a useful step towards verification of the existing and developed sensitivity analysis methods.

Ivanova, Tatiana [IRSN; Laville, Cedric [IRSN; Dyrda, James [Atomic Weapons Establishment; Mennerdahl, Dennis [E. Mennerdahl Systems; Golovko, Yury [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Raskach, Kirill [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Tsiboulia, Anatoly [Institute of Physics and Power Engineering (IPPE), Obninsk, Russia; Lee, Gil Soo [Korea Institute of Nuclear Safety (KINS); Woo, Sweng-Woong [Korea Institute of Nuclear Safety (KINS); Bidaud, Adrien [Labratoire de Physique Subatomique et de Cosmolo-gie (LPSC); Patel, Amrit [NRC; Bledsoe, Keith C [ORNL; Rearden, Bradley T [ORNL; Gulliford, J. [OECD Nuclear Energy Agency

2012-01-01T23:59:59.000Z

118

Estimated global ocean wind power potential from QuikSCAT observations, accounting for turbine characteristics and siting  

E-Print Network (OSTI)

C. S. Zender (2009), Global ocean wind power sensitivity toAND ZENDER: GLOBAL OCEAN WIND POWER POTENTIAL Serpetzoglou,Estimated global ocean wind power potential from QuikSCAT

Capps, Scott B; Zender, Charles S

2010-01-01T23:59:59.000Z

119

E(5) and X(5) critical point symmetries obtained from Davidson potentialsthrough a variational procedure  

Science Journals Connector (OSTI)

Davidson potentials of the form ?2+?04??2, when used in the E(5) framework bridge the U(5) and O(6) symmetries, while they bridge the U(5) and SU(3) symmetries when used in the X(5) framework. Using a variational procedure, we determine for each value of angular momentum L the value of ?0 at which the rate of change of various physical quantities [energy ratios, intraband B(E2) ratios, quadrupole moment ratios] has a maximum, the collection of the values of the physical quantity formed in this way being a candidate for describing its behavior at the relevant critical point. Energy ratios lead to the E(5) and X(5) results, while intraband B(E2) ratios and quadrupole moments lead to the E(5)-?4 and X(5)-?4 models. A new derivation of the Holmberg-Lipas formula for nuclear energy spectra is obtained as a by-product.

Dennis Bonatsos; D. Lenis; N. Minkov; D. Petrellis; P. P. Raychev; P. A. Terziev

2004-08-16T23:59:59.000Z

120

Sensitive glow discharge ion source for aerosol and gas analysis  

DOE Patents (OSTI)

A high sensitivity glow discharge ion source system for analyzing particles includes an aerodynamic lens having a plurality of constrictions for receiving an aerosol including at least one analyte particle in a carrier gas and focusing the analyte particles into a collimated particle beam. A separator separates the carrier gas from the analyte particle beam, wherein the analyte particle beam or vapors derived from the analyte particle beam are selectively transmitted out of from the separator. A glow discharge ionization source includes a discharge chamber having an entrance orifice for receiving the analyte particle beam or analyte vapors, and a target electrode and discharge electrode therein. An electric field applied between the target electrode and discharge electrode generates an analyte ion stream from the analyte vapors, which is directed out of the discharge chamber through an exit orifice, such as to a mass spectrometer. High analyte sensitivity is obtained by pumping the discharge chamber exclusively through the exit orifice and the entrance orifice.

Reilly, Peter T. A. (Knoxville, TN)

2007-08-14T23:59:59.000Z

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

ATLAS sensitivity to Wtb anomalous couplings in top quark decays  

E-Print Network (OSTI)

We study the sensitivity of the ATLAS experiment to Wtb anomalous couplings in top pair production with semileptonic decay, pp -> t tbar -> W+ b W- bbar, with one of the W bosons decaying leptonically and the other hadronically. Several observables are examined, including the W helicity fractions and new quantities recently introduced, such as the ratios of helicity fractions and some angular asymmetries defined in the W rest frame. The dependence on anomalous couplings of all these observables has been previously obtained. In this work we show that some of the new observables also have smaller systematic uncertainties than the helicity fractions, with a dependence on anomalous couplings similar or stronger than for helicity fractions. Consequently, their measurement can significantly improve the limits on anomalous couplings. Moreover, the most sensitive measurements can be combined. In this case, the precision achieved in the determination of Wtb anomalous couplings can be of a few percent in the semileptonic channel alone.

J. A. Aguilar-Saavedra; J. Carvalho; N. Castro; A. Onofre; F. Veloso

2007-12-17T23:59:59.000Z

122

Hydropower Potential Screening Study  

E-Print Network (OSTI)

Hydropower Potential Screening Study Gillian Charles GRAC 5/28/14 #12;Latest Hydropower Potential Study Creating a Buzz 2014 DOE study on undeveloped stream reaches 84.7 GW undeveloped hydropower in undeveloped stream reaches hydropower in the PNW #12;Studies at both National

123

BLM Sensitive Species | Open Energy Information  

Open Energy Info (EERE)

Sensitive Species Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleBLMSensitiveSpecies&oldid612378" Category: NEPA Resources...

124

Ethylene synthesis and sensitivity in crop plants.  

E-Print Network (OSTI)

?? The gaseous plant hormone ethylene is a small molecule that regulates developmental change. Research was conducted in three areas: sensitivity, synthesis, and alterations to… (more)

Romagnano, Joseph F.

2008-01-01T23:59:59.000Z

125

Ethylene Synthesis and Sensitivity in Crop Plants.  

E-Print Network (OSTI)

??The gaseous plant hormone ethylene is a small molecule that regulates developmental change. Research was conducted in three areas: sensitivity, synthesis, and alterations to synthesis.… (more)

Romagnano, Joseph F.

2008-01-01T23:59:59.000Z

126

Improving liquid chromatography-mass spectrometry sensitivity...  

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

sensitivity using a subambient pressure ionization with nanoelectrospray (SPIN Abstract: In this work the Subambient Pressure Ionization with Nanoelectrospray (SPIN) ion...

127

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

128

The Planck Length Scale and Einstein Mass-Energy Obtained from the Sciama-Mach Large Number Relationship  

E-Print Network (OSTI)

If a physical significance should be attributed to the cosmological large number relationship obtained from Sciama's formulation of Mach's Principle, then a number of interesting physical conclusions may be drawn. The Planck length is naturally obtained as the amplitude of waves in a medium whose properties are implied by the relationship. The relativistic internal energy associated with a rest mass is explicitly related to the gravitational potential energy of the Universe, and consistency with the Einstein photon energy is demonstrated. Broader cosmological consequences of this formulation are addressed.

Scott Funkhouser

2003-09-25T23:59:59.000Z

129

A sensitive neutron spectrometer for the National Ignition Facility  

SciTech Connect

We are developing a sensitive neutron spectrometer for the National Ignition Facility laser at Livermore. The spectrometer will consist of a 1020 channel single-neutron-interaction time-of-flight detector array fielded 23 m from the neutron-producing target. It will use an existing detector array together with upgraded electronics for improved time resolution. Measurements of neutron yield, ion and electron temperatures, and density-radius product are all possible under certain conditions using one-, two-, or three-step reaction processes. The locations of the most important potential sources of scattered neutron backgrounds are determined as the first step in designing collimation to reduce these backgrounds.

Watt, R. G.; Chrien, R. E.; Klare, K. A.; Murphy, T. J.; Wilson, D. C.; Haan, S.

2001-01-01T23:59:59.000Z

130

A Sensitive Test of Mass-Energy Relation  

E-Print Network (OSTI)

The Einstein's mass-energy relation $E=mc^2$ is one of the most fundamental formulae in physics, but it has not been seriously tested by an elaborated experiment, and only some indirect evidences in nuclear reaction suggested that it holds to high precision. In this letter, we propose a sensitive experiment to test this relation. The experiment only involves low energy accelerator of particles and measurement of speed. The results can disclose the fine structure of the energy-speed relation, which can be used as the fingerprints of the interactive potentials of elementary particles. So the experiment may shed lights on the nature of the interaction and elementary particles.

Ying-Qiu Gu

2011-01-16T23:59:59.000Z

131

Chromosomal instability determines taxane sensitivity - supplementary materials  

E-Print Network (OSTI)

genes in residual tumours following paclitaxel across all Rustin-resistant (black line) and Rustin-sensitive (red line) patients. (Kolmogorov-Smirnov test, D = 0.11, p = 0.01). (Bottom) Sensitivity defined by the CA125 coefficient: The same analysis...

Swanton, Charles; Nicke, Barbara; Schuett, Marion; Eklund, Aron C; Ng, Charlotte; Li, Qiyuan; Hardcastle, Thomas; Lee, Alvin; Roy, Rajat; East, Philip; Kschischo, Maik; Endesfelder, David; Wylie, Paul; Kim, Se Nyun; Chen, Jie-Guang; Howell, Michael; Ried, Thomas; Habermann, Jens K; Auer, Gert; Brenton, James D; Szallasi, Zoltan; Downward, Julian

2009-04-24T23:59:59.000Z

132

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

133

High sensitivity charge amplifier for ion beam uniformity monitor  

DOE Patents (OSTI)

An ion beam uniformity monitor for very low beam currents using a high-sensitivity charge amplifier with bias compensation. The ion beam monitor is used to assess the uniformity of a raster-scanned ion beam, such as used in an ion implanter, and utilizes four Faraday cups placed in the geometric corners of the target area. Current from each cup is integrated with respect to time, thus measuring accumulated dose, or charge, in Coulombs. By comparing the dose at each corner, a qualitative assessment of ion beam uniformity is made possible. With knowledge of the relative area of the Faraday cups, the ion flux and areal dose can also be obtained.

Johnson, Gary W. (Livermore, CA)

2001-01-01T23:59:59.000Z

134

On modeling hydraulic fracture in proper variables: stiffness, accuracy, sensitivity  

E-Print Network (OSTI)

The problem of hydraulic fracture propagation is considered by using its recently suggested modified formulation in terms of the particle velocity, the opening in the proper degree, appropriate spatial coordinates and $\\varepsilon$-regularization. We show that the formulation may serve for significant increasing the efficiency of numerical tracing the fracture propagation. Its advantages are illustrated by re-visiting the Nordgren problem. It is shown that the modified formulation facilitates (i) possibility to have various stiffness of differential equations resulting after spatial discretization, (ii) obtaining highly accurate and stable numerical results with moderate computational effort, and (iii) sensitivity analysis. The exposition is extensively illustrated by numerical examples.

Mishuris, Gennady; Linkov, Alexander

2012-01-01T23:59:59.000Z

135

The discrete potential Boussinesq equation and its multisoliton solutions  

E-Print Network (OSTI)

An alternate form of discrete potential Boussinesq equation is proposed and its multisoliton solutions are constructed. An ultradiscrete potential Boussinesq equation is also obtained from the discrete potential Boussinesq equation using the ultradiscretization technique. The detail of the multisoliton solutions is discussed by using the reduction technique. The lattice potential Boussinesq equation derived by Nijhoff et al. is also investigated by using the singularity confinement test. The relation between the proposed alternate discrete potential Boussinesq equation and the lattice potential Boussinesq equation by Nijhoff et al. is clarified.

Ken-ichi Maruno; Kenji Kajiwara

2009-08-12T23:59:59.000Z

136

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive  

E-Print Network (OSTI)

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive TRW James Webb Space reaction wheel noise · Heritage components · Compatible with ESA #12;This material is approved for public

Sirianni, Marco

137

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive  

E-Print Network (OSTI)

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive TRW James Webb Space momentum buildup Spacecraft Bus · Isolates reaction wheel noise · Heritage components #12;02-JWST-0001 - 3

Sirianni, Marco

138

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive  

E-Print Network (OSTI)

TRW/Ball/Kodak Competition Sensitive TRW/Ball/Kodak Competition Sensitive TRW James Webb Space Deployable Optical Telescope Assembly (DOTA) Primary Mirror Structure Hinges and Latches Reaction Wheel

Sirianni, Marco

139

Hydrogen’s Potential  

Science Journals Connector (OSTI)

Estimates of future demand for non-fossil produced hydrogen and of its potential are oriented toward ... to the environment as the present fossil energy economy [10.4, 10.9].

J. Nitsch; C. Voigt

1988-01-01T23:59:59.000Z

140

Global Biomass Energy Potential  

Science Journals Connector (OSTI)

The intensive use of renewable energy is one of the options to stabilize...2...atmospheric concentration at levels of 350 to 550ppm. A recent evaluation of the global potential of primary renewable energy carried...

Jos#X00C9; Roberto Moreira

2006-03-01T23:59:59.000Z

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.


141

Logistic Map Potentials  

E-Print Network (OSTI)

We develop and illustrate methods to compute all single particle potentials that underlie the logistic map, x --> sx(1-x) for 02. We illustrate the methods numerically for the cases s=5/2 and s=10/3.

Thomas Curtright; Andrzej Veitia

2010-05-27T23:59:59.000Z

142

Investigation of Thermal Interface Materials Using Phase-Sensitive Transient Thermoreflectance Technique: Preprint  

SciTech Connect

With increasing power density in electronics packages/modules, thermal resistances at multiple interfaces are a bottleneck to efficient heat removal from the package. In this work, the performance of thermal interface materials such as grease, thermoplastic adhesives and diffusion-bonded interfaces are characterized using the phase-sensitive transient thermoreflectance technique. A multi-layer heat conduction model was constructed and theoretical solutions were derived to obtain the relation between phase lag and the thermal/physical properties. This technique enables simultaneous extraction of the contact resistance and bulk thermal conductivity of the TIMs. With the measurements, the bulk thermal conductivity of Dow TC-5022 thermal grease (70 to 75 um bondline thickness) was 3 to 5 W/(m-K) and the contact resistance was 5 to 10 mm2-K/W. For the Btech thermoplastic material (45 to 80 ?m bondline thickness), the bulk thermal conductivity was 20 to 50 W/(m-K) and the contact resistance was 2 to 5 mm2-K/W. Measurements were also conducted to quantify the thermal performance of diffusion-bonded interface for power electronics applications. Results with the diffusion-bonded sample showed that the interfacial thermal resistance is more than one order of magnitude lower than those of traditional TIMs, suggesting potential pathways to efficient thermal management.

Feng, X.; King, C.; DeVoto, D.; Mihalic, M.; Narumanchi, S.

2014-08-01T23:59:59.000Z

143

Safety Evaluations using a Real-Time Crash Potential Model: Sensitivity to Model Calibration  

E-Print Network (OSTI)

By Bruce Hellinga, Amir Samimi Proceedings of the ITE Canadian District Annual Conference held May 6

Hellinga, Bruce

144

A Transform Method of a Force Curve Obtained by Surface Force Apparatus to the Density Distribution of a Liquid on a Surface: An Improved Version  

E-Print Network (OSTI)

We propose a transform method from a force curve obtained by a surface force apparatus (SFA) to a density distribution of a liquid on a surface of the SFA probe. (We emphasize that the transform method is a theory for the experiment.) In the method, two-body potential between the SFA probe and the solvent sphere is modeled as the soft attractive potential with rigid wall. The model potential is more realistic compared with the rigid potential applied in our earlier work. The introduction of the model potential is the improved point of the present transform method. The transform method is derived based on the statistical mechanics of a simple liquid where the simple liquid is an ensemble of small spheres. To derive the transform method, Kirkwood superposition approximation is used. It is found that the transformation can be done by a sequential computation. It is considered that the solvation structure can be obtained more precisely by using the improved transform method.

Ken-ichi Amano; Eisuke Tanaka

2014-12-08T23:59:59.000Z

145

Structural Sensitivity of Dry Storage Canisters  

SciTech Connect

This LS-DYNA modeling study evaluated a generic used nuclear fuel vertical dry storage cask system under tip-over, handling drop, and seismic load cases to determine the sensitivity of the canister containment boundary to these loads. The goal was to quantify the expected failure margins to gain insight into what material changes over the extended long-term storage lifetime could have the most influence on the security of the containment boundary. It was determined that the tip-over case offers a strong challenge to the containment boundary, and identifies one significant material knowledge gap, the behavior of welded stainless steel joints under high-strain-rate conditions. High strain rates are expected to increase the material’s effective yield strength and ultimate strength, and may decrease its ductility. Determining and accounting for this behavior could potentially reverse the model prediction of a containment boundary failure at the canister lid weld. It must be emphasized that this predicted containment failure is an artifact of the generic system modeled. Vendor specific designs analyze for cask tip-over and these analyses are reviewed and approved by the Nuclear Regulatory Commission. Another location of sensitivity of the containment boundary is the weld between the base plate and the canister shell. Peak stresses at this location predict plastic strains through the whole thickness of the welded material. This makes the base plate weld an important location for material study. This location is also susceptible to high strain rates, and accurately accounting for the material behavior under these conditions could have a significant effect on the predicted performance of the containment boundary. The handling drop case was largely benign to the containment boundary, with just localized plastic strains predicted on the outer surfaces of wall sections. It would take unusual changes in the handling drop scenario to harm the containment boundary, such as raising the drop height or changing the impact angle. The seismic load case was derived from the August 23, 2011 earthquake that affected the North Anna power station. The source of the data was a monitoring station near Charlottesville, Virginia, so the ground motion is not an exact match. Stresses on the containment boundary were so low, even from a fatigue standpoint, that the seismic load case is generally not a concern. Based on this study, it is recommended that high strain rate testing of welded stainless steel test samples be pursued to define the currently unknown material behavior. Additional modeling is recommended to evaluate specific dry storage cask system designs subjected to tip-over loads using a high level of model detail. Additional modeling of the canister interior components (basket, fuel assemblies, etc.) is also recommended, to evaluate the feasibility of fuel retrievability after a tip-over incident. Finally, additional modeling to determine how much degradation a system could undergo and still maintain the integrity of the confinement barrier should be performed.

Klymyshyn, Nicholas A.; Karri, Naveen K.; Adkins, Harold E.; Hanson, Brady D.

2013-09-27T23:59:59.000Z

146

Physics Potential of the Fermilab NuMI beamline  

E-Print Network (OSTI)

We explore the physics potential of the NuMI beamline with a detector located 10 km off-axis at a distant site (810 km). We study the sensitivity to $\\sin^2 2 \\theta_{13}$ and to the CP-violating parameter $\\sin \\delta$ as well as the determination of the neutrino mass hierarchy by exploiting the $\

Olga Mena; Stephen Parke

2005-07-25T23:59:59.000Z

147

Sense and sensitivity of double beta decay experiments  

SciTech Connect

The search for neutrinoless double beta decay is a very active field in which the number of proposals for next-generation experiments has proliferated. In this paper we attempt to address both the sense and the sensitivity of such proposals. Sensitivity comes first, by means of proposing a simple and unambiguous statistical recipe to derive the sensitivity to a putative Majorana neutrino mass, m{sub ??}. In order to make sense of how the different experimental approaches compare, we apply this recipe to a selection of proposals, comparing the resulting sensitivities. We also propose a ''physics-motivated range'' (PMR) of the nuclear matrix elements as a unifying criterium between the different nuclear models. The expected performance of the proposals is parametrized in terms of only four numbers: energy resolution, background rate (per unit time, isotope mass and energy), detection efficiency, and ?? isotope mass. For each proposal, both a reference and an optimistic scenario for the experimental performance are studied. In the reference scenario we find that all the proposals will be able to partially explore the degenerate spectrum, without fully covering it, although four of them (KamLAND-Zen, CUORE, NEXT and EXO) will approach the 50 meV boundary. In the optimistic scenario, we find that CUORE and the xenon-based proposals (KamLAND-Zen, EXO and NEXT) will explore a significant fraction of the inverse hierarchy, with NEXT covering it almost fully. For the long term future, we argue that {sup 136}Xe-based experiments may provide the best case for a 1-ton scale experiment, given the potentially very low backgrounds achievable and the expected scalability to large isotope masses.

Gómez-Cadenas, J.J.; Martín-Albo, J.; Sorel, M.; Ferrario, P.; Monrabal, F.; Muñoz, J. [Instituto de Física Corpuscular (IFIC), CSIC and Universidad de Valencia, Calle Catedrático José Beltrán 2, 46071 Valencia (Spain); Novella, P. [Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avda. Complutense 22, 28040 Madrid (Spain); Poves, A., E-mail: gomez@mail.cern.ch, E-mail: justo.martin-albo@ific.uv.es, E-mail: sorel@ific.uv.es, E-mail: paola.ferrario@ific.uv.es, E-mail: francesc.monrabal@ific.uv.es, E-mail: jmunoz@ific.uv.es, E-mail: pau.novella@ciemat.es, E-mail: alfredo.poves@uam.es [Dpto. de de Física Teórica and IFT-UAM/CSIC, Universidad Autónoma de Madrid, Calle Nicolás Cabrera 13-15, 28049 Madrid (Spain)

2011-06-01T23:59:59.000Z

148

Potential of Evaporative Cooling Systems for Buildings in India  

E-Print Network (OSTI)

Evaporative cooling potential for building in various climatic zones in India is investigated. Maintainable indoor conditions are obtained from the load - capacity analysis for the prevailing ambient conditions. For the assumed activity level...

Maiya, M. P.; Vijay, S.

2010-01-01T23:59:59.000Z

149

Potentials of GHG reductions from wastewater treatment for the CDM  

Science Journals Connector (OSTI)

The study aims to evaluate the potential of GHG (greenhouse gas) reductions by installing an ... break-even point of additional investment to reduce GHG is obtained by exchanging carbon price as ... that the meth...

Takaaki Furubayashi; Toshihiko Nakata

2011-07-01T23:59:59.000Z

150

Version 2.0 Born-Oppenheimer potential for HeH+  

E-Print Network (OSTI)

Version 2.0 Born-Oppenheimer potential for HeH+ Krzysztof Pachucki Faculty of Physics, University functions. The Born-Oppenheimer potential for the ground electronic 1+ state is obtained in the range of 0 = 1.463 283 au, the Born-Oppenheimer potential amounts to -2.978 708 310 771(1). Obtained results lay

Pachucki, Krzysztof

151

Ultrahigh humidity sensitivity of graphene oxide  

E-Print Network (OSTI)

Humidity sensors have been extensively used in various fields, and numerous problems are encountered when using humidity sensors, including low sensitivity, long response and recovery times, and narrow humidity detection ...

Bi, Hengchang

152

Distribution-sensitive learning for imbalanced datasets  

E-Print Network (OSTI)

Many real-world face and gesture datasets are by nature imbalanced across classes. Conventional statistical learning models (e.g., SVM, HMM, CRY), however, are sensitive to imbalanced datasets. In this paper we show how ...

Song, Yale

153

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...

Seth, Vikram

2005-02-17T23:59:59.000Z

154

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

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

Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code T-723:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct...

155

Multi-step contrast sensitivity gauge  

DOE Patents (OSTI)

An X-ray contrast sensitivity gauge is described herein. The contrast sensitivity gauge comprises a plurality of steps of varying thicknesses. Each step in the gauge includes a plurality of recesses of differing depths, wherein the depths are a function of the thickness of their respective step. An X-ray image of the gauge is analyzed to determine a contrast-to-noise ratio of a detector employed to generate the image.

Quintana, Enrico C; Thompson, Kyle R; Moore, David G; Heister, Jack D; Poland, Richard W; Ellegood, John P; Hodges, George K; Prindville, James E

2014-10-14T23:59:59.000Z

156

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

157

LABORATORY III POTENTIAL ENERGY  

E-Print Network (OSTI)

LABORATORY III POTENTIAL ENERGY Lab III - 1 In previous problems, you have been introduced to the concepts of kinetic energy, which is associated with the motion of an object, and internal energy, which is associated with the internal structure of a system. In this section, you work with another form of energy

Minnesota, University of

158

Ionisation Potential of Radon  

Science Journals Connector (OSTI)

... WE have determined the ionisation potential of radon, using the well-known method,1 due to Hertz, of compensation of the negative ... xenon and krypton: it was found to be 2.6 volts. The quantity of radon used in different experiments was of the order of 300 millicuries. The volume of ...

F. HOLWECK; L. WERTENSTEIN

1930-09-20T23:59:59.000Z

159

Ultra-sensitive measurements of 36Cl and 236U at the Australian National University  

Science Journals Connector (OSTI)

Some potential applications of the isotopes 36Cl and 236U require higher sensitivity than is normally required or achieved. For 36Cl, one such application is the measurement of the 36Cl/Cl ratio of seawater. We show that, with appropriate precautions to reduce the effect of ion-source memory, it is possible to reach blank levels below 10?16 in the 36Cl/Cl ratio. Measurements of a series of seawater and sea salt samples yield a blank-corrected 36Cl/Cl ratio of present-day sea water of 0.71 ± 0.08 × 10?15. For 236U, one potential application is as a prospecting tool, where sensitivities in the 236U/238U ratio at the 10?13 level are desirable. We demonstrate that this sensitivity can be achieved for 24 MeV uranium ions with time-of-flight detection over a 6.0 m flight path.

L.K. Fifield; S.G. Tims; J.O. Stone; D.C. Argento; M. De Cesare

2013-01-01T23:59:59.000Z

160

Risk-sensitive Policies for Sustainable Renewable Resource Allocation Stefano Ermon  

E-Print Network (OSTI)

Risk-sensitive Policies for Sustainable Renewable Resource Allocation Stefano Ermon Computer renewable resources allocation problems. In many such problems, high stakes decisions with potentially for the management of a renewable resource. While the most common examples are probably living re- sources

Keinan, Alon

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

Estimation of A Sensitivity-Based Metric for Detecting Market Power  

E-Print Network (OSTI)

to measure market power ([1], [3]). The This project was support in part by the US Department of Energy1 Estimation of A Sensitivity-Based Metric for Detecting Market Power HyungSeon Oh and Robert J. Thomas, Fellow, IEEE Abstract ­ The abuse of market power is a potentially serious problem for market

162

Quantum Dot Self-Assembly for Protein Detection with Sub-Picomolar Sensitivity  

E-Print Network (OSTI)

agglomerates mediated by antigen recognition were characterized by measuring their light scattering on the basis of cost, complexity, and speed. Detection of pathogens by molecular recognition-based self device has the potential to offer better sensitivity, ease of use, speed, and cost of testing. We

163

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

164

High open circuit voltages of solar cells based on quantum dot and dye hybrid-sensitization  

SciTech Connect

A type of solar cell based on quantum dot (QD) and dye hybrid-sensitized mesoporous TiO{sub 2} film electrode was designed and reported. The electrode was consisted of a TiO{sub 2} nanoparticle (NP) thin film layer sensitized with CdS quantum dot (QD) and an amorphous TiO{sub 2} coated TiO{sub 2} NP thin film layer that sensitized with C106 dye. The amorphous TiO{sub 2} layer was obtained by TiCl{sub 4} post-treatment to improve the properties of solar cells. Research showed that the solar cells fabricated with as-prepared hybrid-sensitized electrode exhibited excellent photovoltaic performances and a fairly high open circuit voltage of 796?mV was achieved.

Zhao, Yujie; Zhao, Wanyu; Chen, Jingkuo; Li, Huayang; Fu, Wuyou, E-mail: hari@hpu.edu.cn, E-mail: fuwy56@163.com; Sun, Guang; Cao, Jianliang; Zhang, Zhanying [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China)] [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China); Bala, Hari, E-mail: hari@hpu.edu.cn, E-mail: fuwy56@163.com [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China) [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China); College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, Tongliao 028043 (China)

2014-01-06T23:59:59.000Z

165

Effective Panchromatic Sensitization of Electrochemical Solar Cells: Strategy and Organizational Rules for Spatial Separation of  

E-Print Network (OSTI)

Effective Panchromatic Sensitization of Electrochemical Solar Cells: Strategy and Organizational efficiencies. In only a few cases, however, have significant overall improvements been obtained. In most other (JSC = 14.6 mA cm-2 ) and double the efficiency of randomly mixed dyes, once the dyes were optimally

166

American Institute of Aeronautics and Astronautics Probabilistic Sensitivity Analysis Methods for Design under  

E-Print Network (OSTI)

for Design under Uncertainty Huibin Liu* and Wei Chen. Integrated Design Automation Laboratory, Department) is an important procedure in engineering design to obtain valuable information about the model behavior to guide a design process. For design under uncertainty, probabilistic sensitivity analysis (PSA) methods have been

Chen, Wei

167

Uncertainty and sensitivity analysis for two-phase flow in the vicinity of the repository in the 1996 performance assessment for the Waste Isolation Pilot Plant: Undisturbed conditions  

SciTech Connect

Uncertainty and sensitivity analysis results obtained in the 1996 performance assessment for the Waste Isolation Pilot Plant are presented for two-phase flow the vicinity of the repository under undisturbed conditions. Techniques based on Latin hypercube sampling, examination of scatterplots, stepwise regression analysis, partial correlation analysis and rank transformation are used to investigate brine inflow, gas generation repository pressure, brine saturation and brine and gas outflow. Of the variables under study, repository pressure is potentially the most important due to its influence on spallings and direct brine releases, with the uncertainty in its value being dominated by the extent to which the microbial degradation of cellulose takes place, the rate at which the corrosion of steel takes place, and the amount of brine that drains from the surrounding disturbed rock zone into the repository.

HELTON,JON CRAIG; BEAN,J.E.; ECONOMY,K.; GARNER,J.W.; MACKINNON,ROBERT J.; MILLER,JOEL D.; SCHREIBER,JAMES D.; VAUGHN,PALMER

2000-05-19T23:59:59.000Z

168

Hydrocarbon Potential of Deep Water  

Science Journals Connector (OSTI)

...research-article Hydrocarbon Potential of Deep Water H. R. Warman In...the geology and hydrocarbon potential of the Earth's deeper water areas, an attempt...United Kingdom 1981 Hydrocarbon potential of deep water Warman H. R. Author...

1978-01-01T23:59:59.000Z

169

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

170

Energy dependence of K ???-“pp” effective potential derived from coupled-channel Green’s function  

Science Journals Connector (OSTI)

We investigate the energy dependence of a single-channel effective potential between the K ?? and the “pp”-core nucleus, which can be obtained as an K ??-“pp” equivalent local potential fr...

Takahisa Koike; Toru Harada

2012-01-01T23:59:59.000Z

171

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

172

Chemically sensitive interfaces on SAW devices  

SciTech Connect

Using surface acoustic wave (SAW) devices, three approaches to the effective use of chemically sensitive interfaces that are not highly chemically selective have been examined: (1) molecular identification from time-resolved permeation transients; (2) using multifrequency SAW devices to determine the frequency dependence of analyte/film interactions; (3) use of an array of SAW devices bearing diverse chemically sensitive interfaces to produce a distinct response pattern for each analyte. In addition to their well-known sensitivity to mass changes (0.0035 monolayer of N{sub 2} can be measured), SAW devices respond to the mechanical and electronic properties of thin films, enhancing response information content but making a thorough understanding of the perturbation critical. Simultaneous measurement of changes in frequency and attenuation, which can provide the information necessary to determine the type of perturbation, are used as part of the above discrimination schemes.

Ricco, A.J.; Martin, S.J. [Sandia National Labs., Albuquerque, NM (United States); Crooks, R.M.; Xu, Chuanjing [Texas A and M Univ., College Station, TX (United States); Allred, R.E. [Adherent Technologies, Inc., Albuquerque, NM (United States)

1993-11-01T23:59:59.000Z

173

Expression of behavioral sensitization to ethanol is increased by energy drink administration  

Science Journals Connector (OSTI)

Abstract Alcohol abuse and dependence are important medical, social and economical problems, affecting millions of people. A relatively recent habit among young people is mixing alcohol with energy drinks (ED), in spite of the risks involved may be higher than those associated with alcohol consumption alone. The mixture of alcohol and energy drinks, both with stimulant properties, may alter the perception of intoxication and could lead individuals to believe they are less drunk and can drink more or for longer periods of time. In animals, the repeated administration of ethanol can lead to a progressive increase of the locomotor stimulant effect, known as behavioral sensitization, a drug-dependent behavioral plasticity associated with vulnerability to addiction. As well as for addiction, there are clear individual differences in the level of sensitization to ethanol among species and even among individuals from the same strain. The present study assessed how ED affects the expression of ethanol sensitization. Female mice chronically treated with ethanol (2.4 g/kg) were classified as low-sensitized or high-sensitized. Two days later, different groups of mice were submitted to saline + water, ethanol + water or ethanol + ED systemic challenges. As expected, only the high-sensitized group expressed clear sensitization after ethanol administration. However, the administration of ethanol + ED triggered the sensitization expression in the low-sensitized group. These data indicate that the combined use of ED and ethanol can potentiate the stimulant and, consequently, the reward effects of ethanol in previously treated mice. If a similar process occurs in human beings, the use of ED can increase the risk of developing alcohol abuse or dependence.

Sionaldo Eduardo Ferreira; Karina Possa Abrahao; Maria Lucia Oliveira Souza-Formigoni

2013-01-01T23:59:59.000Z

174

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

175

A graphene-based electrochemical sensor for sensitive detection...  

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

graphene-based electrochemical sensor for sensitive detection of paracetamol . A graphene-based electrochemical sensor for sensitive detection of paracetamol . Abstract: An...

176

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

177

Evaluation of methods for measuring relative permeability of anhydride from the Salado Formation: Sensitivity analysis and data reduction  

SciTech Connect

This report documents, demonstrates, evaluates, and provides theoretical justification for methods used to convert experimental data into relative permeability relationships. The report facilities accurate determination of relative permeabilities of anhydride rock samples from the Salado Formation at the Waste Isolation Pilot Plant (WIPP). Relative permeability characteristic curves are necessary for WIPP Performance Assessment (PA) predictions of the potential for flow of waste-generated gas from the repository and brine flow into repository. This report follows Christiansen and Howarth (1995), a comprehensive literature review of methods for measuring relative permeability. It focuses on unsteady-state experiments and describes five methods for obtaining relative permeability relationships from unsteady-state experiments. Unsteady-state experimental methods were recommended for relative permeability measurements of low-permeability anhydrite rock samples form the Salado Formation because these tests produce accurate relative permeability information and take significantly less time to complete than steady-state tests. Five methods for obtaining relative permeability relationships from unsteady-state experiments are described: the Welge method, the Johnson-Bossler-Naumann method, the Jones-Roszelle method, the Ramakrishnan-Cappiello method, and the Hagoort method. A summary, an example of the calculations, and a theoretical justification are provided for each of the five methods. Displacements in porous media are numerically simulated for the calculation examples. The simulated product data were processed using the methods, and the relative permeabilities obtained were compared with those input to the numerical model. A variety of operating conditions were simulated to show sensitivity of production behavior to rock-fluid properties.

Christiansen, R.L.; Kalbus, J.S. [Colorado School of Mines, Golden, CO (United States). Petroleum Engineering Dept.; Howarth, S.M. [Sandia National Labs., Albuquerque, NM (United States)

1997-05-01T23:59:59.000Z

178

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.

179

The Photo-Sensitized Oxidation of Ethanol  

Science Journals Connector (OSTI)

...research-article The Photo-Sensitized Oxidation of Ethanol J. L. Bolland H. R. Cooper Certain...photosensitizers of the autoxidation of ethanol. In this quantitative investigation the...mechanism, abstracting hydrogen from the ethanol to give a semi-quinone radical which...

1954-01-01T23:59:59.000Z

180

GROUPS SENSITIVITY SCORE Flat worms 3  

E-Print Network (OSTI)

GROUPS SENSITIVITY SCORE Flat worms 3 Worms 3 Leeches 2 Crabs or shrimps 7 Stoneflies 14 Minnow The best sites are those with rocks in moving water. Not all sites have rocks (rocky type rivers), but may rocky, sandy, and vegetation habitats, not all habitats are always present at a site. If your river does

de Villiers, Marienne

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.


181

24-SEMA as a sensitive and offset compensated SLF sequence  

Science Journals Connector (OSTI)

Separated Local Field (SLF) spectroscopy is a powerful tool for the determination of structure and dynamics of oriented systems such as membrane proteins oriented in lipid bilayers and liquid crystals. Of many SLF techniques available, Polarization Inversion Spin Exchange at Magic Angle (PISEMA) has found wide application due to its many favorable characteristics. However the pulse sequence suffers from its sensitivity to proton resonance frequency offset. Recently we have proposed a new sequence named 24-SEMA (J. Chem. Phys. 132 (2010) 134301) that overcomes this problem of PISEMA. The present work demonstrates the advantage of 24-SEMA as a highly sensitive SLF technique even for very large proton offset. 24-SEMA has been designed for obtaining reliable dipolar couplings by switching the magic-angle spin-lock for protons over four quadrants as against the use of only two quadrants in PISEMA. It is observed that for on-resonance condition, 24-SEMA gives rise to signal intensity comparable to or slightly higher than that from PISEMA. But under off-resonance conditions, intensities from 24-SEMA are several fold higher than those from PISEMA. Comparison with another offset compensated pulse sequence, SAMPI4, also indicates a better intensity profile for 24-SEMA. Experiments carried out on a single crystal of 15N labeled N-acetyl–dl-valine and simulations have been used to study the relative performance of the pulse sequences considered.

S. Jayanthi; N. Sinha; K.V. Ramanathan

2010-01-01T23:59:59.000Z

182

Schwanniomyces: a potential superyeast  

SciTech Connect

In 1977, when our quest to determine the industrial potential of the genus Schwanniomyces began, little was known about this microbe. The genus was first described by Kloecker in 1909, after the isolation in the Antilles of Schwanniomyces occidentalis. A number of biological descriptions (see Ferreira and Phaff) and other species were also described. In addition, it was known that close to 100 yeasts were able to assimilate at least part of the starch molecule. Then, Augustin et al. and Costamagna et al. reported the ability of Schwanniomyces spp. to produce extracellular alpha-amylase and utilize starch. Later discoveries would indicate that both alpha-amylase and glucoamylase were present, and from then on, research with the yeast Schwanniomyces would become very competitive - especially in Canada and Europe. (Refs. 53).

Ingledew, W.M.

1987-01-01T23:59:59.000Z

183

Ground potential rise monitor  

DOE Patents (OSTI)

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

184

Underground operation at best sensitivity of the mobile LNE-SYRTE Cold Atom Gravimeter  

E-Print Network (OSTI)

Low noise underground environments offer conditions allowing to assess ultimate performance of high sensitivity sensors such as accelerometers, gyrometers, seismometers... Such facilities are for instance ideal for observing the tiny signals of interest for geophysical studies. Laboratoire Souterrain \\`a Bas Bruit (LSBB) in which we have installed our cold atom gravimeter, provides such an environment. We report here the best short term sensitivity ever obtained without any ground vibration isolation system with such an instrument: $10^{-8}$m.s$^{-2}$ in 100 s measurement time.

Farah, Tristan; Landragin, Arnaud; Bouyer, Philippe; Gaffet, Stéphane; Santos, Franck Pereira Dos; Merlet, Sébastien

2014-01-01T23:59:59.000Z

185

Sub-SQL Sensitivity via Optical Rigidity in Advanced LIGO Interferometer with Optical Losses  

E-Print Network (OSTI)

The ``optical springs'' regime of the signal-recycled configuration of laser interferometric gravitational-wave detectors is analyzed taking in account optical losses in the interferometer arm cavities. This regime allows to obtain sensitivity better than the Standard Quantum Limits both for a free test mass and for a conventional harmonic oscillator. The optical losses restrict the gain in sensitivity and achievable signal-to-noise ratio. Nevertheless, for parameters values planned for the Advanced LIGO gravitational-wave detector, this restriction is insignificant.

F. Ya. Khalili; V. I. Lazebny; S. P. Vyatchanin

2005-11-02T23:59:59.000Z

186

Meson - theoretic potentials and the hypertriton: A reply  

Science Journals Connector (OSTI)

We argue on the basis of model calculations that the introduction of short-range repulsion and ?-? coupling into the separable potential approximation to meson-theoretic potentials will not alter the conclusions previously obtained. In addition, it is shown that the introduction of the tensor force into the N-N triplet interaction, which produces a larger effect than either of the other two modifications, will not alter the conclusions.NUCLEAR STRUCTURE H?3, Y-N potentials, separable potential three-body calculation, B?.

B. F. Gibson and D. R. Lehman

1975-06-01T23:59:59.000Z

187

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

188

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

SciTech Connect

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

189

Electrostatic Dust Detector with Improved Sensitivity  

SciTech Connect

Methods to measure the inventory of dust particles and to remove dust if it approaches safety limits will be required in next-step tokamaks such as ITER. An electrostatic dust detector, based on a fine grid of interlocking circuit traces, biased to 30 or 50 V, has been developed for the detection of dust on remote surfaces in air and vacuum environments. Gaining operational experience of dust detection on surfaces in tokamaks is important, however the level of dust generated in contemporary short-pulse tokamaks is comparatively low and high sensitivity is necessary to measure dust on a shot-by-shot basis. We report on modifications in the detection electronics that have increased the sensitivity of the electrostatic dust detector by a factor of up to 120, - a level suitable for measurements on contemporary tokamaks.

D.P. Boyle, C.H. Skinner, and A. L. Roquemore

2008-06-09T23:59:59.000Z

190

Polarization and corrosion of electrogalvanized steel - evaluation of zinc coatings obtained from waste-derived zinc electrolytes  

SciTech Connect

The corrosion of electrogalvanized 1070 steel wire has been investigated in molar quiescent ammonium chloride and ammonium sulfate under near-neutral conditions. Zinc coatings obtained from waste-derived electrolytes were evaluated vs. coatings from relatively pure zinc electrolytes. The waste source of zinc was brass smelter flue dust. Corrosion rates were measured by Tafel line extrapolation and the polarization resistance technique. Values of the Tafel slopes and the corrosion currents were also compared with those for pure zinc (99.999%). Corrosion rates were found to be affected by the medium employed, pH, and bimetal diameter reduction (drawing). Drawn electrogalvanized stee displays higher values of the Tafel slopes than do the as-plated samples. The Tafel slopes are different from thos obtained on pure zinc. This is assumed to be due to inhomogeneous surface features obtained from additive adsorption (during plating) and residual lubricants used in the drawing process as well as surface structure. The corrosion rates of electrogalvanized samples plated in the waste-derived zinc electrolytes were similar to the corrosion rates of samples plated in relatively pure zinc electrolytes. Therefore, wastes are a potential source of zinc for electrogalvanizing.

Dattilo, M.

1985-11-01T23:59:59.000Z

191

Technical Potential for Local Distributed  

E-Print Network (OSTI)

the impact of high penetrations of solar PV on wholesale power markets (energy and capacity Technical Potential for Local Distributed Photovoltaics in California Preliminary.391.5100 www.ethree.com Technical Potential for Local Distributed Photovoltaics in California Preliminary

192

Sensitivity analysis of Stirling engine design parameters  

SciTech Connect

In the preliminary Stirling engine design process, the values of some design parameters (temperature ratio, swept volume ratio, phase angle and dead volume ratio) have to be assumed; as a matter of fact it can be difficult to determine the best values of these parameters for a particular engine design. In this paper, a mathematical model is developed to analyze the sensitivity of engine's performance variations corresponding to variations of these parameters.

Naso, V.; Dong, W.; Lucentini, M.; Capata, R.

1998-07-01T23:59:59.000Z

193

Sensitivity of mRNA Translation  

E-Print Network (OSTI)

Using the dynamic mean-field approximation of the totally asymmetric simple exclusion process (TASEP), we investigate the effect of small changes in the initiation, exit, and elongation rates along the mRNA strand on the steady state protein translation rate. We focus on two special cases where exact closed-form expressions for the translation rate sensitivity can be derived. We discuss the ramifications of our results in the context of functional genomics, molecular evolution, and synthetic biology.

Gilad Poker; Michael Margaliot; Tamir Tuller

2014-09-18T23:59:59.000Z

194

Sensitivity improvement of a laser interferometer limited by inelastic back-scattering, employing dual readout  

E-Print Network (OSTI)

Inelastic back-scattering of stray light is a long-standing problem in high-sensitivity interferometric measurements and a potential limitation for advanced gravitational-wave detectors, in particular at sub-audio-band frequencies. The emerging parasitic interferences cannot be distinguished from a scientific signal via conventional single readout. In this work, we propose and demonstrate the subtraction of inelastic back-scatter signals by employing dual homodyne detection on the output light -- here -- of a table-top Michelson interferometer. The additional readout contains solely parasitic signals and is used to model the scatter source. Subtraction of the scatter signal reduces the noise spectral density and thus improves the measurement sensitivity. Our scheme is qualitatively different from the previously demonstrated vetoing of scatter signals and opens a new path for improving the sensitivity of future gravitational-wave detectors.

Meinders, Melanie

2015-01-01T23:59:59.000Z

195

TSUNAMI Primer: A Primer for Sensitivity/Uncertainty Calculations with SCALE  

SciTech Connect

This primer presents examples in the application of the SCALE/TSUNAMI tools to generate k{sub eff} sensitivity data for one- and three-dimensional models using TSUNAMI-1D and -3D and to examine uncertainties in the computed k{sub eff} values due to uncertainties in the cross-section data used in their calculation. The proper use of unit cell data and need for confirming the appropriate selection of input parameters through direct perturbations are described. The uses of sensitivity and uncertainty data to identify and rank potential sources of computational bias in an application system and TSUNAMI tools for assessment of system similarity using sensitivity and uncertainty criteria are demonstrated. Uses of these criteria in trending analyses to assess computational biases, bias uncertainties, and gap analyses are also described. Additionally, an application of the data adjustment tool TSURFER is provided, including identification of specific details of sources of computational bias.

Rearden, Bradley T [ORNL; Mueller, Don [ORNL; Bowman, Stephen M [ORNL; Busch, Robert D. [University of New Mexico, Albuquerque; Emerson, Scott [University of New Mexico, Albuquerque

2009-01-01T23:59:59.000Z

196

Brueckner Reaction Matrix and Separable Potentials  

Science Journals Connector (OSTI)

The binding energy of He4 and O16 was calculated using reaction matrix elements of Tabakin's potential. A separable form of the potential has been used to reduce the basic equation to a simple linear algebraic system. The Pauli operator Q defined in terms of harmonic-oscillator intermediate states permits an easy and accurate calculation. Our numerical results for the binding energies include the first- and second-order contributions. A very resonable agreement between the experimental and theoretical values has been obtained, since the occupied-state energies are made nearly self-consistent and a cancellation of other important higher-order contributions has been achieved by a shift of the entire harmonic-oscillator spectra.

M. Gmitro and M. Sotona

1970-08-01T23:59:59.000Z

197

Intermolecular Interactions in Dye-Sensitized Solar Cells: A Computational Modeling Perspective  

Science Journals Connector (OSTI)

(10-14) Fully organic sensitizers have been developed as metal-free dyes because of their increased molar extinction coefficient, compared to Ru(II) dyes, spectral tunability, and reduced environmental impact. ... The advantage of this new generation of solar cells is that they can be produced at low cost, i.e., potentially generated a high-efficiency (20-30% quantum efficiency) cathodic photocurrent and a significant photovoltaic effect in reversible Fe2+/Fe3+ redox soln. ...

Mariachiara Pastore; Filippo De Angelis

2013-02-28T23:59:59.000Z

198

Chapter 20: Electric Potential and Electric Potential Energy  

E-Print Network (OSTI)

1 Chapter 20: Electric Potential and Electric Potential Energy 2. A 4.5 µC charge moves in a uniform electric field ( )5 ^4.1 10 N/C= �E x . The change in electric potential energy of a charge that moves against an electric field is given by equation 20-1, 0U q Ed = . If the charge moves in the same

Kioussis, Nicholas

199

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

200

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

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

Photodetector having high speed and sensitivity  

DOE Patents (OSTI)

The present invention provides a photodetector having an advantageous combination of sensitivity and speed; it has a high sensitivity while retaining high speed. In a preferred embodiment, visible light is detected, but in some embodiments, x-rays can be detected, and in other embodiments infrared can be detected. The present invention comprises a photodetector having an active layer, and a recombination layer. The active layer has a surface exposed to light to be detected, and comprises a semiconductor, having a bandgap graded so that carriers formed due to interaction of the active layer with the incident radiation tend to be swept away from the exposed surface. The graded semiconductor material in the active layer preferably comprises Al.sub.1-x Ga.sub.x As. An additional sub-layer of graded In.sub.1-y Ga.sub.y As may be included between the Al.sub.1-x Ga.sub.x As layer and the recombination layer. The recombination layer comprises a semiconductor material having a short recombination time such as a defective GaAs layer grown in a low temperature process. The recombination layer is positioned adjacent to the active layer so that carriers from the active layer tend to be swept into the recombination layer. In an embodiment, the photodetector may comprise one or more additional layers stacked below the active and recombination layers. These additional layers may include another active layer and another recombination layer to absorb radiation not absorbed while passing through the first layers. A photodetector having a stacked configuration may have enhanced sensitivity and responsiveness at selected wavelengths such as infrared.

Morse, Jeffrey D. (Martinez, CA); Mariella, Jr., Raymond P. (Danville, CA)

1991-01-01T23:59:59.000Z

202

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

203

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

204

IPA Phase 2 sensitivity and uncertainty analysis  

SciTech Connect

The NRC`s Phase 2 Iterative Performance Assessment (IPA) used Monte Carlo techniques to propagate uncertainty for up to 297 independent variables and nine scenarios through computer models representing the performance of the Yucca Mountain repository. The NRC staff explored the use of a number of parametric and non-parametric tests and graphical methods to display the probabilistic results. Parametric tests included regression and differential analysis. Non-parametric tests included the Kolmogorov-Smirnov test and Sign test. Graphical methods included the Complementary Cumulative Distribution Function (CCDF), hair diagram, scatter plots, histograms and box plots. Multiple linear regression of raw, ranked, standardized and other transformed variables determined the gross sensitivity over the parameter space. CCDF`s were also generated from subsets of the 400 vector sets formed by screening the vectors according to values of derived variables related to the behavior of the engineered and natural systems. While no single statistical or graphical technique proved to be useful in all cases, diverse methods of sensitivity and uncertainty analysis identified the same important input parameters.

Colten-Bradley, V.; Codell, R.; Byrne, M.R. [Nuclear Regulatory Commission, Washington, DC (United States)

1994-12-31T23:59:59.000Z

205

Ensemble Sensitivity Analysis Applied to a Southern Plains Convective Event  

Science Journals Connector (OSTI)

Forecast sensitivity of an April 2012 severe convection event in northern Texas is investigated with a high resolution Weather Research and Forecasting (WRF) model-based Ensemble Kalman Filter (EnKF). Through Ensemble Sensitivity Analysis (ESA), ...

Christopher N. Bednarczyk; Brian C. Ancell

206

Persistent sensitivity of Asian aerosol to emissions of nitrogen oxides  

E-Print Network (OSTI)

We use a chemical transport model and its adjoint to examine the sensitivity of secondary inorganic aerosol formation to emissions of precursor trace gases from Asia. Sensitivity simulations indicate that secondary inorganic ...

Kharol, S. K.

207

On the Correlation between Forcing and Climate Sensitivity  

E-Print Network (OSTI)

The possible correlation between climate sensitivity and radiative forcing is studied using versions of the NCAR Community Atmospheric Model (CAM) model with different climate sensitivities. No such correlation was found ...

Sokolov, Andrei

208

Adjoint modeling for atmospheric pollution process sensitivity at regional scale  

E-Print Network (OSTI)

Adjoint modeling for atmospheric pollution process sensitivity at regional scale Laurent Menut; 0345 Atmospheric Composition and Structure: Pollution--urban and regional (0305); 3210 Mathematical: atmospheric pollution, tropospheric ozone, urban pollution peaks, adjoint modeling, sensitivity Citation

Menut, Laurent

209

Light with nonzero chemical potential  

Science Journals Connector (OSTI)

Thermodynamic states and processes involving light are discussed in which the chemical potential of light is nonzero. Light with nonzero chemical potential is produced in photochemical reactions for example in a light emitting diode. The chemical potential of black-body radiation becomes negative upon a Joule expansion. The isothermal diffusion of light which is a common phenomenon is driven by the gradient in the chemical potential. These and other examples support the idea that light can be interpreted as a gas of photons with properties similar to a material gas.

F. Herrmann; P. Würfel

2005-01-01T23:59:59.000Z

210

Directed lines in sparse potentials  

Science Journals Connector (OSTI)

We present a continuum formulation of a (d+1)-dimensional directed line interacting with sparse potentials (i.e., d-dimensional potentials defined only at discrete longitudinal locations.) An iterative solution for the partition function is derived. The impulsive influence of the potentials induces discontinuities in the evolution of the probability density P(x,t) of the directed line. The effects of these discontinuities are studied in detail for the simple case of a single defect. We then investigate sparse columnar potentials defined as a periodic array of defects in (2+1) dimensions, and solve exactly for P. A nontrivial binding-unbinding transition is found.

T. J. Newman and A. J. McKane

1997-01-01T23:59:59.000Z

211

Studies on the bound-state spectrum of hyperbolic potential  

E-Print Network (OSTI)

Bound states of hyperbolic potential is investigated by means of a generalized pseudospectral method. Significantly improved eigenvalues, eigenfunctions are obtained efficiently for arbitrary $n, \\ell$ quantum states by solving the relevant non-relativistic Schr\\"odinger equation allowing a non-uniform, optimal spatial discretization. Eigenvalues accurate up to tenth decimal place are reported for a large range of potential parameters; thus covering a wide range of interaction. Excellent agreement with available literature results is observed in all occasions. Special attention is paid for higher states. Some new states are given. Energy variations with respect to parameters in the potential are studied in considerable detail for the first time.

Amlan K. Roy

2014-09-08T23:59:59.000Z

212

The Importance of Perovskite Pore Filling in Organometal Mixed Halide Sensitized TiO2-Based Solar Cells  

Science Journals Connector (OSTI)

(3, 4) Solid-state dye-sensitized solar cells (ssDSSCs) have, however, fallen short of the predicted performances, reaching a maximum of 7.2% power conversion efficiency when using custom-synthesized light-absorbing dyes and specially designed dopants to improve the charge transport in the hole transporting layer. ... Snaith, H. J.Estimating the Maximum Attainable Efficiency in Dye-Sensitized Solar Cells Adv. ... and optical losses in the dye-sensitized system are reviewed, and the main losses in potential from the conversion of an absorbed photon at the optical bandgap of the sensitizer to the open-circuit voltage generated by the solar cell are specifically highlighted. ...

Tomas Leijtens; Beat Lauber; Giles E. Eperon; Samuel D. Stranks; Henry J. Snaith

2014-03-10T23:59:59.000Z

213

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

214

RACK-1 expression and cytokine production in leukocytes obtained from AD patients  

Science Journals Connector (OSTI)

Background and aims: The purpose of this study was to evaluate in vitro cytokine production in blood leukocytes obtained from sporadic AD patients, aged controls and young individuals. Methods: D...

Marco Racchi; Elena Sinforiani; Stefano Govoni…

2006-04-01T23:59:59.000Z

215

Experimental Results Obtained with the Positron-Annihilation Radiation Telescope of the Toulouse-Argonne Collaboration  

Science Journals Connector (OSTI)

We present laboratory measurements obtained with a ground-based prototype of a focusing positron-annihilation-radiation telescope developed by the Toulouse-Argonne collaboration. This balloon-borne telescope has ...

J. E. Naya; P. von Ballmoos; F. Albernhe; G. Vedrenne…

1995-01-01T23:59:59.000Z

216

Obtaining Carbon Nanoparticles with the Use of Electric?Arc Discharge between Coaxial Electrodes  

Science Journals Connector (OSTI)

The structure of a setup and the results of experiments on obtaining carbon nanostructures with the use of a d.c. arc discharge between coaxial graphite electrodes have been presented. The discharge was stabil...

V. V. Chuprasov; M. S. Tret'yak…

217

UNIVERSITY OF CONNECTICUT PRIMARY CARE INTERNAL MEDICINE RESIDENCY PROGRAM POSITIONS OBTAINED BY GRADUATES  

E-Print Network (OSTI)

UNIVERSITY OF CONNECTICUT PRIMARY CARE INTERNAL MEDICINE RESIDENCY PROGRAM POSITIONS OBTAINED Alikhan 2009 Connecticut UConn PCIM Chief Resident Sharon Dowell 2009 Connecticut UConn PCIM Chief Hospitalist Mehdi Makki 2009 Connecticut UConn PCIM Chief Resident Edgar Naut 2009 Connecticut Hospitalist

Oliver, Douglas L.

218

Optimization method for obtaining nearest-neighbour DNA entropies and enthalpies directly from melting temperatures  

Science Journals Connector (OSTI)

......require the knowledge of total sequence entropies and enthalpies which are not always available. Results: Here we implement and test a new melting temperature optimization method (MTO) where we obtain the NN parameters directly from the temperatures. In this......

Gerald Weber

2014-11-01T23:59:59.000Z

219

New method to obtain the power spectra of hidden variables and its application to ocean data  

Science Journals Connector (OSTI)

A novel method is proposed to obtain the power spectra of hidden variables in a chaotic time series. By embedding the data in phase space, and recording the conditional probability density of points that the t...

Wei en-bo; Tian Ji-wei; Xu Jin-shan

2001-03-01T23:59:59.000Z

220

Structure of aluminum hydroxide powders obtained as a byproduct of hydrogen fuel production  

Science Journals Connector (OSTI)

The structure of aluminum hydroxide powders obtained as byproducts of hydrogen fuel production was investigated. One of the main initial components comprised aluminum-magnesium chips with 0.6, 6 and 12 wt.% ma...

A. D. Shlyapin; A. Yu. Omarov; V. P. Tarasovskii; Yu. G. Trifonov

2013-09-01T23:59:59.000Z

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

Negative-ion mass spectra obtained with the aid of an electron-impact source  

Science Journals Connector (OSTI)

The negative-ion mass spectra of six natural compounds of various classes, obtained with the use of an EI ion source, have been characterized. The conditions for ... presuppose the occurrence of a process of seco...

Ya. V. Rashkes

1993-05-01T23:59:59.000Z

222

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

Science Journals Connector (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

223

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

224

AgBiS2 Semiconductor-Sensitized Solar Cells  

Science Journals Connector (OSTI)

AgBiS2 Semiconductor-Sensitized Solar Cells ... We present a new ternary semiconductor sensitizer-AgBiS2 for solar cells. ... Liquid-junction semiconductor-sensitized solar cells were fabricated from the synthesized AgBiS2 semiconductor. ...

Pen-Chi Huang; Wei-Chih Yang; Ming-Way Lee

2013-08-16T23:59:59.000Z

225

Quality Modeling of Water Distribution Systems using Sensitivity Equations  

E-Print Network (OSTI)

Quality Modeling of Water Distribution Systems using Sensitivity Equations P. Fabrie1 ; G. Gancel2 and the associated sensitivity equa- tions are solved for Water Distribution Systems (WDS). A new solution algorithm presented in this study permits global sensitivity analysis of the system to be performed and its efficiency

Boyer, Edmond

226

Efficient Sensitivities for the Spin-up Phase  

E-Print Network (OSTI)

in sensitivities e.g. of · spun-up state w.r.t. forcing or model-parameters · transient simulation w.r.t. parameters. Includes sensitivity of spun-up state. spin-up period periodic forcing transient period #12;Fast after iteration k parameters, boundary conditions #12;FastOpt Spinup Sensitivities Interested

Giering, Ralf

227

Faster parameter estimation using risk-sensitive lters Sanjeewa Athuraliyay  

E-Print Network (OSTI)

Faster parameter estimation using risk-sensitive lters Sanjeewa Athuraliyay , Jason Fordz and John propose a risk-sensitive approach to parameter estimation for hidden Markov models HMMs. The parameter the improvement in estimation simu- lation studies are presented that compare parameter estimation based on risk-sensitive

Moore, John Barratt

228

Dynamic tuning of chemiresistor sensitivity using mechanical strain  

DOE Patents (OSTI)

The sensitivity of a chemiresistor sensor can be dynamically tuned using mechanical strain. The increase in sensitivity is a smooth, continuous function of the applied strain, and the effect can be reversible. Sensitivity tuning enables the response curve of the sensor to be dynamically optimized for sensing analytes, such as volatile organic compounds, over a wide concentration range.

Martin, James E; Read, Douglas H

2014-09-30T23:59:59.000Z

229

GPUs Neutron Sensitivity Dependence on Data Type  

Science Journals Connector (OSTI)

Graphics Processing Units are very prone to be corrupted by neutrons. Experimental results obtained irradiating the GPU with high energy neutrons show that the input data type has a strong influence on the neutron-induced error-rate of the executed algorithms. ... Keywords: Data types, GPU, Neutron radiation testing, Precision, Reliability

P. Rech, C. Frost, L. Carro

2014-06-01T23:59:59.000Z

230

2D Position Sensitive Microstrip Sensors with Charge Division Along the Strip: Studies on the position measurement error  

E-Print Network (OSTI)

Position sensitivity in semiconductor detectors of ionizing radiation is usually achieved by the segmentation of the sensing diode junction in many small sensing elements read out separately as in the case of conventional microstrips and pixel detectors. Alternatively, position sensitivity can be obtained by splitting the ionization signal collected by one single electrode amongst more than one readout channel with the ratio of the collected charges depending on the position where the signal was primary generated. Following this later approach, we implemented the charge division method in a conventional microstrip detector to obtain position sensitivity along the strip. We manufactured a proof-of-concept demonstrator where the conventional aluminum electrodes were replaced by slightly resistive electrodes made of strongly doped poly-crystalline silicon and being readout at both strip ends. Here, we partially summarize the laser characterization of this first proof-of-concept demonstrator with special emphas...

Bassignana, D; Fernandez, M; Jaramillo, R; Lozano, M; Munoz, F J; Pellegrini, G; Quirion, D; Vila, I; Vitorero, F

2013-01-01T23:59:59.000Z

231

Metal-Cluster-Sensitized Solar Cells. A New Class of Thiolated Gold Sensitizers Delivering Efficiency Greater Than 2%  

Science Journals Connector (OSTI)

A New Class of Thiolated Gold Sensitizers Delivering Efficiency Greater Than 2% ... A new class of metal-cluster sensitizers has been explored for designing high-efficiency solar cells. ... layers, suggesting that even greater photocurrent enhancements may be achievable. ...

Yong-Siou Chen; Hyunbong Choi; Prashant V. Kamat

2013-05-29T23:59:59.000Z

232

Sorption of redox-sensitive elements: critical analysis  

SciTech Connect

The redox-sensitive elements (Tc, U, Np, Pu) discussed in this report are of interest to nuclear waste management due to their long-lived isotopes which have a potential radiotoxic effect on man. In their lower oxidation states these elements have been shown to be highly adsorbed by geologic materials occurring under reducing conditions. Experimental research conducted in recent years, especially through the Waste Isolation Safety Assessment Program (WISAP) and Waste/Rock Interaction Technology (WRIT) program, has provided extensive information on the mechanisms of retardation. In general, ion-exchange probably plays a minor role in the sorption behavior of cations of the above three actinide elements. Formation of anionic complexes of the oxidized states with common ligands (OH/sup -/, CO/sup - -//sub 3/) is expected to reduce adsorption by ion exchange further. Pertechnetate also exhibits little ion-exchange sorption by geologic media. In the reduced (IV) state, all of the elements are highly charged and it appears that they form a very insoluble compound (oxide, hydroxide, etc.) or undergo coprecipitation or are incorporated into minerals. The exact nature of the insoluble compounds and the effect of temperature, pH, pe, other chemical species, and other parameters are currently being investigated. Oxidation states other than Tc (IV,VII), U(IV,VI), Np(IV,V), and Pu(IV,V) are probably not important for the geologic repository environment expected, but should be considered especially when extreme conditions exist (radiation, temperature, etc.). Various experimental techniques such as oxidation-state analysis of tracer-level isotopes, redox potential measurement and control, pH measurement, and solid phase identification have been used to categorize the behavior of the various valence states.

Strickert, R.G.

1980-12-01T23:59:59.000Z

233

Accelerated safety analyses - structural analyses Phase I - structural sensitivity evaluation of single- and double-shell waste storage tanks  

SciTech Connect

Accelerated Safety Analyses - Phase I (ASA-Phase I) have been conducted to assess the appropriateness of existing tank farm operational controls and/or limits as now stipulated in the Operational Safety Requirements (OSRs) and Operating Specification Documents, and to establish a technical basis for the waste tank operating safety envelope. Structural sensitivity analyses were performed to assess the response of the different waste tank configurations to variations in loading conditions, uncertainties in loading parameters, and uncertainties in material characteristics. Extensive documentation of the sensitivity analyses conducted and results obtained are provided in the detailed ASA-Phase I report, Structural Sensitivity Evaluation of Single- and Double-Shell Waste Tanks for Accelerated Safety Analysis - Phase I. This document provides a summary of the accelerated safety analyses sensitivity evaluations and the resulting findings.

Becker, D.L.

1994-11-01T23:59:59.000Z

234

Quantification of the Potential Energy  

E-Print Network (OSTI)

(ICE). Energy from waste has an important role to play in improving energy security in the UK and1 waste up to 2020. To determine the potential2 contribution that energy recovery from residual shows that: potential energy recovery from these residual wastes could account for as much as 17

Columbia University

235

CP-odd nucleon potential  

Science Journals Connector (OSTI)

The P-odd and CP-odd nucleon potential for different models of CP violation in the one-meson exchange approximation is studied. It is shown that the main contribution is due to the ?-meson exhcange which leads to a simple one-parameter CP-odd nucleon potential.

V. P. Gudkov; Xiao-Gang He; Bruce H. J. McKellar

1993-05-01T23:59:59.000Z

236

Ambipolar potential formation in TMX  

SciTech Connect

TMX experimental data on ambipolar potential control and on the accompanying electrostatic confinement are reported. New results on the radial dependence of the central-cell confining potential are given. Radial and axial particle losses as well as scaling of the central-cell axial confinement are discussed.

Correl, D.L.; Allen, S.L.; Casper, T.A.

1981-05-05T23:59:59.000Z

237

On the Quintessence Scalar Field Potential  

E-Print Network (OSTI)

In this work we propose a new analytical method for determining the scalar field potential $V(\\phi)$ in FRW type cosmologies containing a mixture of perfect fluid plus a quintessence scalar field. By assuming that the equation of state parameters of the perfect fluid, $\\gamma -1 \\equiv p_{\\gamma}/\\rho_{\\gamma}$ and the quintessence, $\\omega \\equiv p/\\rho$ are constants, it is shown that the potential for the flat case is $V(\\phi) = A\\rho_{\\phi_{0}}\\sinh^{B}(\\lambda \\phi)$, where $A$, $B$ and $\\lambda$ are functions of $\\gamma$ and $\\omega$. This general result is a pure consequence of the Einstein field equations and the constancy of the parameters. Applying the same method for closed and open universes, the corresponding scalar field potentials are also explicitly obtained for a large set of values of the free parameters $\\gamma$ and $\\omega$. A formula yielding the transition redshift from a decelerating to an accelerating regime is also determined and compared to the $\\Lambda$CDM case.

J. A. Espichán Carrillo; J. M. Silva; J. A. S. Lima

2008-06-20T23:59:59.000Z

238

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

239

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 wave length 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.

Mihalczo, John T. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

240

Ramp Compression Experiments - a Sensitivity Study  

SciTech Connect

We present the first sensitivity study of the material isentropes extracted from ramp compression experiments. We perform hydrodynamic simulations of representative experimental geometries associated with ramp compression experiments and discuss the major factors determining the accuracy of the equation of state information extracted from such data. In conclusion, we analyzed both qualitatively and quantitatively the major experimental factors that determine the accuracy of equations of state extracted from ramp compression experiments. Since in actual experiments essentially all the effects discussed here will compound, factoring out individual signatures and magnitudes, as done in the present work, is especially important. This study should provide some guidance for the effective design and analysis of ramp compression experiments, as well as for further improvements of ramp generators performance.

Bastea, M; Reisman, D

2007-02-26T23:59:59.000Z

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

Precipitation scavenging models: Sensitivities, tests, and applications  

SciTech Connect

Multiphase'' atmospheric-chemistry models can be described as atmospheric-pollutant simulations that explicitly differentiate between physical phases in the atmosphere (.e.g., gas, cloud water, rain water, snow,...), and directly compute chemical transport and transformation behavior between and within each of these individual phases. Initially formulated for specific application to precipitation-scavenging analysis, many attributes of these models have become incorporated into the more general atmospheric-chemisty codes as well. During the past few years, several of these multiphase precipitation-scavenging models have been developed to the point where they can be applied, in a moderately straightforward fashion, by members of the extended atmospheric sciences community. This presentation provides a brief overview of several aspects of a number of these models, including their structure, their application, their sensitivities and uncertainty levels, their evaluation against field measurements, and their availability.

Hales, J.M.

1991-07-01T23:59:59.000Z

242

Precipitation scavenging models: Sensitivities, tests, and applications  

SciTech Connect

``Multiphase`` atmospheric-chemistry models can be described as atmospheric-pollutant simulations that explicitly differentiate between physical phases in the atmosphere (.e.g., gas, cloud water, rain water, snow,...), and directly compute chemical transport and transformation behavior between and within each of these individual phases. Initially formulated for specific application to precipitation-scavenging analysis, many attributes of these models have become incorporated into the more general atmospheric-chemisty codes as well. During the past few years, several of these multiphase precipitation-scavenging models have been developed to the point where they can be applied, in a moderately straightforward fashion, by members of the extended atmospheric sciences community. This presentation provides a brief overview of several aspects of a number of these models, including their structure, their application, their sensitivities and uncertainty levels, their evaluation against field measurements, and their availability.

Hales, J.M.

1991-07-01T23:59:59.000Z

243

Future cosmological sensitivity for hot dark matter axions  

E-Print Network (OSTI)

We study the potential of a future, large-volume photometric survey to constrain the axion mass $m_a$ in the hot dark matter limit. Future surveys such as Euclid will have significantly more constraining power than current observations for hot dark matter. Nonetheless, the lowest accessible axion masses are limited by the fact that axions lighter than $\\sim 0.15$ eV decouple before the QCD epoch, assumed here to occur at a temperature $T_{\\rm QCD} \\sim 170$ MeV; this leaves an axion population of such low density that its late-time cosmological impact is negligible. For larger axion masses, $m_a \\gtrsim 0.15$ eV, where axions remain in equilibrium until after the QCD phase transition, we find that a Euclid-like survey combined with Planck CMB data can detect $m_a$ at very high significance. Our conclusions are robust against assumptions about prior knowledge of the neutrino mass. Given that the proposed IAXO solar axion search is sensitive to $m_a\\lesssim 0.2$ eV, the axion mass range probed by cosmology is n...

Archidiacono, Maria; Hamann, Jan; Hannestad, Steen; Raffelt, Georg; Wong, Yvonne Y Y

2015-01-01T23:59:59.000Z

244

Sensitivity of climate mitigation strategies to natural disturbances  

SciTech Connect

The present and future concentration of atmospheric carbon dioxide depends on both anthropogenic and natural sources and sinks of carbon. Most proposed climate mitigation strategies rely on a progressive transition to carbon12 efficient technologies to reduce industrial emissions, substantially supported by policies to maintain or enhance the terrestrial carbon stock in forests and other ecosystems. This strategy may be challenged if terrestrial sequestration capacity is affected by future climate feedbacks, but how and to what extent is little understood. Here, we show that climate mitigation strategies are highly sensitive to future natural disturbance rates (e.g. fires, hurricanes, droughts), because of potential effect of disturbances on the terrestrial carbon balance. Generally, altered disturbance rates affect the pace of societal and technological transitions required to achieve the mitigation target, with substantial consequences on the energy sector and on the global economy. Understanding the future dynamics and consequences of natural disturbances on terrestrial carbon balance is thus essential for developing robust climate mitigation strategies and policies

Le Page, Yannick LB; Hurtt, George; Thomson, Allison M.; Bond-Lamberty, Benjamin; Patel, Pralit L.; Wise, Marshall A.; Calvin, Katherine V.; Kyle, G. Page; Clarke, Leon E.; Edmonds, James A.; Janetos, Anthony C.

2013-02-19T23:59:59.000Z

245

Studies on the immunosuppressive effects of alpha globulins obtained from guinea pig serum  

E-Print Network (OSTI)

as to monitor changes in alpha globulin levels and antibody production. At 2 days of sensitization u-globulins were elevated and lymphocyte responses to antigen induced 8-thymidine incorporation were suppressed. 3 iv With development of immunity on day 4..., alpha globulin levels were elevated, and remained so until day 10. Antibody wss detected on day 4 snd gradually rose in titer until day 10. ACKNOWLEDGMENTS I would like to express my appreciation to my committee members, Dr. G. A. O'Donovan and Dr...

Cowart, Richard Elmer

2012-06-07T23:59:59.000Z

246

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

247

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

SciTech Connect

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

248

Demonstration of improved sensitivity of echo interferometers to gravitational acceleration  

E-Print Network (OSTI)

We have developed two configurations of an echo interferometer that rely on standing wave excitation of a laser-cooled sample of rubidium atoms that measures acceleration. For a two-pulse configuration, the interferometer signal is modulated at the recoil frequency and exhibits a sinusoidal frequency chirp as a function of pulse spacing. For a three-pulse stimulated echo configuration, the signal is observed without recoil modulation and exhibits a modulation at a single frequency. The three-pulse configuration is less sensitive to effects of vibrations and magnetic field curvature leading to a longer experimental timescale. For both configurations of the atom interferometer (AI), we show that a measurement of acceleration with a statistical precision of 0.5% can be realized by analyzing the shape of the echo envelope that has a temporal duration of a few microseconds. Using the two-pulse AI, we obtain measurements of acceleration that are statistically precise to 6 parts per million (ppm) on a 25 ms timescal...

Mok, C; Carew, A; Berthiaume, R; Beattie, S; Kumarakrishnan, A

2013-01-01T23:59:59.000Z

249

Monochromatic wavelength dispersive x-ray fluorescence providing sensitive and selective detection of uranium  

SciTech Connect

Monochromatic wavelength dispersive X-ray fluorescence (MWDXRF) is a sensitive and selective method for elemental compositional analyses. The basis for this instrumental advance is the doubly curved crystal (DCC) optic. Previous work has demonstrated the feasibility of sensitive trace element detection for yttrium as a surrogate for curium in aqueous solutions. Additional measurements have demonstrated similar sensitivity in several different matrix environments which attests to the selectivity of the DCC optic as well as the capabilities of the MWDXRF concept. The objective of this effort is to develop an improved Pu characterization method for nuclear fuel reprocessing plants. The MWDXRF prototype instrument is the second step in a multi-year effort to achieve an improved Pu assay. This work will describe a prototype MWDXRF instrument designed for uranium detection and characterization. The prototype consists of an X-ray tube with a rhodium anode and a DCC excitation optic incorporated into the source. The DCC optic passes the RhK{alpha} line at 20.214 keV for monochromatic excitation of the sample. The source is capable of 50 W power at 50 kV and 1.0 mA operation. The x-ray emission from the sample is collected by a DCC optic set at the UL{alpha} line of 13.613 keV. The collection optic transmits the UL{alpha} x-rays to the silicon drift detector. The x-ray source, sample, collection optic and detector are all mounted on motion controlled stages for the critical alignment of these components. The sensitivity and selectivity of the instrument is obtained through the monochromatic excitation and the monochromatic detection. The prototype instrument performance has a demonstrated for sensitivity for uranium detection of around 2 ppm at the current state of development. Further improvement in sensitivity is expected with more detailed alignment.

Havrilla, George J [Los Alamos National Laboratory; Collins, Michael L [Los Alamos National Laboratory; Montoya, Velma M [Los Alamos National Laboratory; Chen, Zewu [XOS; Wei, Fuzhong [XOS

2010-01-01T23:59:59.000Z

250

Robust phase sensitive inversion recovery imaging  

E-Print Network (OSTI)

in all the cases was maintained constant with maximum variation rate of 0:026 cycles per pixel. : : : : : : : : 43 19 Phasesensitivereconstructionofimagewithveryhighbackground phase variation rate using block merging algorithm. (a) True image, (b) Real... re- construction, (d) PSIR image obtained using block merging algorithm. 46 21 Error vs. SNR plot for the region growing algorithm. The back- ground phase variation in all the cases was maintained constant with maximum variation rate of 0:026 cycles...

Garach, Ravindra Mahendrakumar

2005-11-01T23:59:59.000Z

251

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

252

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.

253

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.

254

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

255

Design and feasibility study of a microgeneration system to obtain renewable energy from tidal currents  

Science Journals Connector (OSTI)

Tidal energy to obtain electrical energy is yet an unexploited renewable energy. Existing generator designs and prototypes are not feasible due to the high investment conditioned by their high rated powers and off-shore locations. In addition these prototypes are not readily available. This investigation presents a design of a microgeneration system with vertical axis microturbines. The design of the microturbines utilizes off-the-shelf electronic components thus reducing the initial investment. The nominal data for selection of power electronic components and the total energy that can be obtained in a year are calculated. The investigation also studies the feasibility of an 80?kW microgeneration system to be applied in Spain taking advantage of the actual electricity prices. The feasibility study quantifies the influence of the parameters: initial investment tidal current speed operation hours turbine efficiency price of electricity and number of microturbines obtaining the limiting values of the suitable scenarios.

2014-01-01T23:59:59.000Z

256

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.

257

Completeness for sparse potential scattering  

SciTech Connect

The present paper is devoted to the scattering theory of a class of continuum Schrödinger operators with deterministic sparse potentials. We first establish the limiting absorption principle for both modified free resolvents and modified perturbed resolvents. This actually is a weak form of the classical limiting absorption principle. We then prove the existence and completeness of local wave operators, which, in particular, imply the existence of wave operators. Under additional assumptions on the sparse potential, we prove the completeness of wave operators. In the context of continuum Schrödinger operators with sparse potentials, this paper gives the first proof of the completeness of wave operators.

Shen, Zhongwei, E-mail: zzs0004@auburn.edu [Department of Mathematics and Statistics, Auburn University, Auburn, Alabama 36849 (United States)] [Department of Mathematics and Statistics, Auburn University, Auburn, Alabama 36849 (United States)

2014-01-15T23:59:59.000Z

258

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,

259

Ion-sensitive phase transitions driven by Debye-Hückel non-ideality  

E-Print Network (OSTI)

We find that the Debye-H\\"uckel nonideality of dilute aqueous electrolytes is sufficient to drive volume phase transitions and criticality, even in the absence of a self-attracting or elastic network. Our result follows from a Landau mean-field theory for a system of confined ions in an external solution of mixed-valence counterions, where the ratio of squared monovalent to divalent ion concentration provides a temperature-like variable for the phase transition. Our analysis was motivated by long-studied volume phase transitions via ion exchange in ionic gels, but our findings agree with existing theory for volume-temperature phase transitions in charged hard-sphere models and other systems by Fisher and Levin, and McGahay and Tomozawa. Our mean-field model predicts a continuous line of gas-liquid-type critical points connecting a purely monovalent, divalent-sensitive critical point at one extreme with a divalent, monovalent-sensitive critical point at the other; an alternative representation of the Landau functional handles this second limit. It follows that critical sensitivity to ion valence is tunable to any desired valence ratio. The critical or discontinuous dependent variable can be the confinement volume; alternatively the internal electrical potential may be more convenient in applications. Our simplified conditions for ionic phase transitions to occur, together with our relatively simple theory to describe them, may facilitate exploration of tunable critical sensitivity in areas such as ion detection technology, biological switches and osmotic control.

Kyle J. Welch; Fred Gittes

2011-09-12T23:59:59.000Z

260

Invertebrate Neuroscience, 1, 341-349 (1996) Expression profiling of mRNA obtained from single  

E-Print Network (OSTI)

. COOPER 1, HAROLD L. ATWOOD 1 and DAVID R. HAMPSON Faculty of Pharmacy and Department of Physiology1, MRC in the levels of expression of known mRNAs in neurons that have been subjected to increased levels of electrical for the regulation of potentially interesting mRNks, under various experi- mental conditions, in species different

Cooper, Robin L.

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

Assessment of global bioenergy potentials  

Science Journals Connector (OSTI)

A recently published literature review (Berndes et al. 2003) analysed 17 studies that reported bioenergy potentials, all published in the 1990s except...2001...) which became available in 2001. The analysed studi...

Ruth Offermann; Thilo Seidenberger…

2011-01-01T23:59:59.000Z

262

THE POTENTIAL OF SOLAR ELECTRIC  

E-Print Network (OSTI)

.5 Energy and the Costs of Production.............................................................5 2 and Local Energy Benefits of PV.......................................15 5. CONCLUSIONS AND DISCUSSIONTHE POTENTIAL OF SOLAR ELECTRIC APPLICATIONS FOR DELAWARE'S POULTRY FARMS FINAL REPORT

Delaware, University of

263

Energy eigenvalues for Yukawa potentials  

Science Journals Connector (OSTI)

A simple formula is given for the energy levels of a particle bound by a Yukawa potential which is accurate at the 1% level over the entire range of Z for a large range of n and l.

A. E. S. Green

1982-09-01T23:59:59.000Z

264

Aggregated TiO2 Based Nanotubes for Dye Sensitized Solar Cells  

SciTech Connect

One-dimensional (1D) semiconducting oxides have attracted great attention for dye sensitized solar cells (DSCs), but the overall performance is still quite limited as compared to TiO2 nanocrystalline DSCs. Here, we report the synthesis of aggregated TiO2 based nanotubes with controlled morphologies and crystalline structures to obtain an overall power conversion efficiency of 9.9% using conventional dye without any additional chemical treatment steps. The high efficiency is attributed to the unique aggregate structure for light harvesting, optimized high surface area, and good crystallinity of the nanotube aggregates obtained through proper thermal annealing. This study demonstrates that high efficiency DSCs can be obtained with 1D nanomaterials, and provides lessons on the importance of optimizing both the nanocrystalline structure and the overall microscale morphology.

Nie, Zimin; Zhou, Xiaoyuan; Zhang, Qifeng; Cao, Guozhong; Liu, Jun

2013-11-01T23:59:59.000Z

265

Dye Sensitization of Nanocrystalline Titanium Dioxide with Osmium and Ruthenium Polypyridyl Complexes  

E-Print Network (OSTI)

dioxide electrodes.2-4 The highest efficiency reported to date for such systems has been obtained using conversion efficiencies of up to 10% have been reported.4 The approximate energetics for this system while maintaining the excited-state redox potential at the same energy level relative to the TiO2 can

Sauvé, Geneviève

266

Nuclear Potential and Symmetry Energy  

Science Journals Connector (OSTI)

A quadratic dependence on momentum is assumed for the two-nucleon interaction energy in the independent-particle model, and is used in a study of the nuclear binding energy and symmetry energy. The corresponding optical potentials for elastic nucleon scattering are discussed. The semiempirical interaction used is compared with the two-body potentials commonly used in shell-model calculations. These are found to be inadequate.

G. R. Satchler

1958-01-15T23:59:59.000Z

267

Thermodynamic properties of the fcc Ising antiferromagnet obtained from precision density of states calculations  

E-Print Network (OSTI)

Thermodynamic properties of the fcc Ising antiferromagnet obtained from precision density of states May 2006 We calculate the density of states for the face-centered-cubic fcc Ising model with nearest of the fcc Ising antiferromagnet has been a long-standing problem in statistical physics, dating back to1

Ryan, Dominic

268

Obtaining enzymes in pure form was an essential prerequisite for understanding the  

E-Print Network (OSTI)

Obtaining enzymes in pure form was an essential prerequisite for understanding the underlying and affinity tag- ging2. In addition to the most basic task of identifying distinct enzymes that catalyze dis- tinct reactions (an endeavor that continues in the genomic era), enzymes were shown to exhibit high

Herschlag, Dan

269

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

E-Print Network (OSTI)

gas compared to its neighboring countries. However, oil shale is an important and unutilized energyThe chemistry of minerals obtained from the combustion of Jordanian oil shale Awni Y. Al University, P.O. Box 78, Karak 61710, Jordan Received 21 November 2003 Abstract A characterization study

Shawabkeh, Reyad A.

270

ENERGY SPECTRUM OF PRIMARY COSMIC RAYS ABOVE 1017 OBTAINED USING AKENO 20 KM2  

E-Print Network (OSTI)

OG 6.3-3 ENERGY SPECTRUM OF PRIMARY COSMIC RAYS ABOVE 1017 EV OBTAINED USING AKENO 20 KM2 ARRAY M, Tokyo Institute of Technology, Tokyo 152, Japan . Institute of High Energy Physics, Academia Sinica these showers, 60 of them are initiated by primaries with energies larger than 1019 eV. The energy spectrum

271

Brain Phosphoproteome Obtained by a FASP-Based Method Reveals Plasma Membrane Protein Topology  

Science Journals Connector (OSTI)

Brain Phosphoproteome Obtained by a FASP-Based Method Reveals Plasma Membrane Protein Topology ... Taking advantage of Filter Assisted Sample Preparation (FASP) method for sample preparation, we performed an analysis of phosphorylation sites in mouse brain. ... Taking advantage of the recently developed Filter Assisted Sample Preparation (FASP) method for sample preparation, we performed an in-depth analysis of phosphorylation sites in mouse brain. ...

Jacek R. Wi?niewski; Nagarjuna Nagaraj; Alexandre Zougman; Florian Gnad; Matthias Mann

2010-04-26T23:59:59.000Z

272

A Journey toward Obtaining Our First NSF S-STEM (Scholarship) Grant  

E-Print Network (OSTI)

Terms Economics. Keywords Computer science, scholarship grant, underrepresented and minority groups. 1 Technology Engineering and Math) grant [2013] for the Department of Computer Science at FSU (the Florida four iterations prior to obtaining this grant. 2.1 Why Single Out Computer Science? The percentage

Wang, Andy

273

A Journey toward Obtaining Our First NSF S-STEM (Scholarship) Grant  

E-Print Network (OSTI)

Computer science, scholarship grant, underrepresented and minority groups. 1. INTRODUCTION The process) grant [2013] for the Department of Computer Science at FSU (the Florida State University). The purposeA Journey toward Obtaining Our First NSF S-STEM (Scholarship) Grant An-I Andy Wang, Gary Tyson

Whalley, David

274

Impact of sludge mechanical behaviour on spatial distribution parameters obtained with centrifugal spreader  

E-Print Network (OSTI)

1 Impact of sludge mechanical behaviour on spatial distribution parameters obtained to analyse organic spreading and opens the way to more developments. Keywords: sludge rheological behaviour a large amount of residues which are spread on agricultural fields. This process of sludge reuse is mainly

Paris-Sud XI, Université de

275

Development of Screenable Pressure Sensitive Adhesives  

SciTech Connect

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

276

Off-shell T matrices for a class of separable nonlocal potentials  

Science Journals Connector (OSTI)

In an earlier paper we considered scattering of all partial waves from a wide class of separable nonlocal potentials, and obtained in configuration space exact analytic solutions for the wave functions and phase shifts. In this paper these solutions are used to construct exact expressions for the half-off-shell and off-shell T matrices for this class of potentials. As an illustration, we compare the off-shell T matrix for the one-term Yamaguchi potential calculated by the method presented here with the expression obtained by standard techniques.NUCLEAR REACTIONS Off-shell T matrices. Separable nonlocal potentials.

B. Bagchi and B. Mulligan

1974-12-01T23:59:59.000Z

277

Determination of the voltage applied to x-ray tubes from the bremsstrahlung spectrum obtained with a silicon PIN photodiode  

Science Journals Connector (OSTI)

This work describes a methodology for the obtainment of the electron accelerating potential (kVp) applied to an x-ray tube through the determination of the end point of the energy spectrum of the radiation emitted by the tube. The measurements have been performed utilizing alternatively two silicon PIN photodiodes directly irradiated by the x-ray beam. Both were operated at room temperature with low bias so avoiding the drawbacks presented by photomultiplier tubes and germanium detectors. The energy calibration of the system was performed with X- and ? -emitter radioactive sources which makes the method absolute. Each kVp value was determined by means of a linear regression in the end of the spectrum to give simultaneously a good fit of the straight line to the experimental data and a low standard deviation for the kVp value. Results of the measurements carried out with an x-ray tube connected to a three-phase generator using additional filtration between 1.5 and 4.0 mm of Cu are presented. This filtration was used in order to minimize the contribution of low energy photons and to reduce pulse pile-up. Errors determined for the values of kVp are between 0.06 and 0.16 kV in the potential range from 50 to 100 kV. As an example the methodology has been applied in the verification of the secondary calibration of a voltage divider utilized by its turn in the tertiary calibration of noninvasive kVp meters. All intrinsic sources of errors involved in the process are discussed and evaluated.

Marcia C. Silva; Silvio B. Herdade; Patr??cia Lammoglia; Paulo R. Costa; Ricardo A. Terini

2000-01-01T23:59:59.000Z

278

Enhanced Sensitivities for the Searches of Neutrino Magnetic Moments through Atomic Ionization  

SciTech Connect

A new detection channel on atomic ionization for possible neutrino electromagnetic interactions is identified and studied. Significant sensitivity enhancement is demonstrated when the energy transfer to the target is of the atomic-transition scale. The interaction cross section induced by neutrino magnetic moments ({mu}{sub {nu}}) is evaluated with the equivalent photon method. A new limit of {mu}{sub {nu}}({nu}e)<1.3x10{sup -11}{mu}{sub B} at 90% confidence level is derived by using current reactor neutrino data. Potential reaches for future experiments are explored. Experiments with sub-keV sensitivities can probe {mu}{sub {nu}} to 10{sup -13}{mu}{sub B}. Positive observations of {mu}{sub {nu}} in this range would imply that neutrinos are Majorana particles.

Wong, Henry T.; Li, Hau-Bin; Lin, Shin-Ted [Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China)

2010-08-06T23:59:59.000Z

279

Explanation of the Colossal Detonation Sensitivity of Silicon Pentaerythritol Tetranitrate (Si-PETN) Explosive  

E-Print Network (OSTI)

Explanation of the Colossal Detonation Sensitivity of Silicon Pentaerythritol Tetranitrate (Si fulminate and far more sensitive than PETN. Although detonation sensitivity is an extremely important issue

Goddard III, William A.

280

Obtaining flaw images by the SAFT method taking the variable velocity of sound in a test object into account  

Science Journals Connector (OSTI)

A modification of the SAFT method for obtaining flaw images in test ... are presented. The images obtained by the SAFT method without taking different SVs into account...

E. G. Bazulin

2010-11-01T23:59:59.000Z

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.


281

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

2006-12-15T23:59:59.000Z

282

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

283

Chain Retraction Potential in a Fixed Entanglement Network  

Science Journals Connector (OSTI)

When a chain, tethered at one end, is immersed in a fixed entanglement network, the mobile tip of the chain encounters an entropic potential barrier that penalizes deep fluctuations needed to bring the tip close to the tethering point. Using the tube model, Doi and Kuzuu [J. Polym. Sci., Polym. Lett. Ed. 18, 775 (1980)] estimated that this potential, which is crucial to describe the rheology of branched polymers in fixed networks and melts, has a quadratic form with a prefactor ?=1.5. Later calculations based on regular lattices indicated that the potential is nonquadratic, and its steepness depends on the lattice coordination number. In this Letter, we analyze the primitive paths obtained using the bond-fluctuation model for chains with up to 12.5 entanglements. Our simulations confirm a quadratic form for the potential with a prefactor close to the Doi-Kuzuu value, ??1.5.

Sachin Shanbhag and Ronald G. Larson

2005-02-23T23:59:59.000Z

284

Feedback Enhanced Sensitivity in Optomechanics: Surpassing the Parametric Instability Barrier  

E-Print Network (OSTI)

The intracavity power, and hence sensitivity, of optomechanical sensors is commonly limited by parametric instability. Here we characterize the parametric instability induced sensitivity degradation in a micron scale cavity optomechanical system. Feedback via optomechanical transduction and electrical gradient force actuation is applied to suppress the parametric instability. As a result a 5.4 fold increase in mechanical motion transduction sensitivity is achieved to a final value of $1.9\\times 10^{-18}\\rm m Hz^{-1/2}$.

Glen I. Harris; Ulrik L. Andersen; Joachim Knittel; Warwick P. Bowen

2011-09-12T23:59:59.000Z

285

Intra-Cavity Total Reflection For High Sensitivity Measurement Of Optical Properties  

DOE Patents (OSTI)

An optical cavity resonator device is provided for conducting sensitive murement of optical absorption by matter in any state with diffraction-limited spatial resolution through utilization of total internal reflection within a high-Q (high quality, low loss) optical cavity. Intracavity total reflection generates an evanescent wave that decays exponentially in space at a point external to the cavity, thereby providing a localized region where absorbing materials can be sensitively probed through alteration of the Q-factor of the otherwise isolated cavity. When a laser pulse is injected into the cavity and passes through the evanescent state, an amplitude loss resulting from absorption is incurred that reduces the lifetime of the pulse in the cavity. By monitoring the decay of the injected pulse, the absorption coefficient of manner within the evanescent wave region is accurately obtained from the decay time measurement.

Pipino, Andrew C. R. (Gaithersburg, MD); Hudgens, Jeffrey W. (Rockville, MD)

1999-08-24T23:59:59.000Z

286

Intra-Cavity Total Reflection For High Sensitivity Measurement Of Optical Properties  

DOE Patents (OSTI)

An optical cavity resonator device is provided for conducting sensitive murement of optical absorption by matter in any state with diffraction-limited spatial resolution through utilization of total internal reflection within a high-Q (high quality, low loss) optical cavity. Intracavity total reflection generates an evanescent wave that decays exponentially in space at a point external to the cavity, thereby providing a localized region where absorbing materials can be sensitively probed through alteration of the Q-factor of the otherwise isolated cavity. When a laser pulse is injected into the cavity and passes through the evanescent state, an amplitude loss resulting from absorption is incurred that reduces the lifetime of the pulse in the cavity. By monitoring the decay of the injected pulse, the absorption coefficient of manner within the evanescent wave region is accurately obtained from the decay time measurement.

Pipino, Andrew Charles Rule (Gaithersburg, MD)

1999-11-16T23:59:59.000Z

287

Visualizing motion in potential wells  

Science Journals Connector (OSTI)

The concept of potential-energy diagrams is of fundamental importance in the study of quantum physics. Yet students are rarely exposed to this powerful alternative description in introductory classes and thus have difficulty comprehending its significance when they encounter it in beginning-level quantum courses. We describe a learning unit that incorporates a sequence of computer-interfaced experiments using dynamics or air-track systems. This unit is designed to make the learning of potential-energy diagrams less abstract. Students begin by constructing the harmonic or square-well potential diagrams using either the velocity data and assuming conservation of energy or the force-displacement graph for the elasticinteraction of an object constrained by springs or bouncing off springy blocks. Then they investigate the motion of a rider magnetinteracting with a configuration of field magnets and plot directly the potential-energy diagrams using a magnetic field sensor. The ease of measurement allows exploring the motion in a large variety of potential shapes in a short duration class.

Pratibha Jolly; Dean Zollman; N. Sanjay Rebello; Albena Dimitrova

1998-01-01T23:59:59.000Z

288

Graphically oriented method for obtaining atomic displacement fields in crystals from irreducible representations of space groups  

Science Journals Connector (OSTI)

A method for obtaining distortion fields in a crystal from a given irreducible representation of the underlying space group is described. The method, based on projection operators of group theory, is graphically oriented and therefore calculation-free. For an example (space group P4¯21m), complete sets of representation matrices are analytically calculated for all irreducible representations which correspond to all wave vectors of the form k=(q,q,0). All 96 linear independent atomic displacement modes in the (3×3×1) supercell, which are induced by the two irreducible representations with k=(13,13,0), are explicitly determined: the obtained atomic displacement fields are plane waves with wave vector k.

Jürgen K. Gutmann and Horst Böhm

2000-06-01T23:59:59.000Z

289

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

290

Improving the efficiency of water splitting in dye-sensitized...  

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

Improving the efficiency of water splitting in dye-sensitized solar cells by using a biomimetic electron transfer mediator Authors: Zhao, Y., Swierk, J. R., Megiatto, J. D.,...

291

Sensitive Immunosensor for Cancer Biomarker Based on Dual Signal...  

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

Immunosensor for Cancer Biomarker Based on Dual Signal Amplification Strategy of Graphene Sheets and Multi-Enzyme Sensitive Immunosensor for Cancer Biomarker Based on Dual Signal...

292

TSPA Model Development and Sensitivity Analysis of Processes...  

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

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

293

Correlation and climate sensitivity of human health and environmental...  

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

Community, whose traditional territories are particularly vulnerable to threats like sea-level rise and increased storms. These sensitivities of species and habitats to climate...

294

Sensitive electrochemical immunoassay for 2,4,6-trinitrotoluene...  

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

immunoassay for 2,4,6-trinitrotoluene based on functionalized silica nanoparticle labels. Sensitive electrochemical immunoassay for 2,4,6-trinitrotoluene based on functionalized...

295

Intensity-interferometric test of nuclear collision geometries obtained from the Boltzmann-Uehling-Uhlenbeck equation  

SciTech Connect

Two-proton correlation functions measured for the {sup 14}N+{sup 27}Al reaction at {ital E}/{ital A}=75 MeV are compared to correlation functions predicted for collision geometries obtained from numerical solutions of the Boltzmann-Uehling-Uhlenbeck (BUU) equation. The calculations are in rather good agreement with the experimental correlation function, indicating that the BUU equation gives a reasonable description of the space-time evolution of the reaction.

Gong, W.G.; Bauer, W.; Gelbke, C.K.; Carlin, N.; de Souza, R.T.; Kim, Y.D.; Lynch, W.G.; Murakami, T.; Poggi, G.; Sanderson, D.P.; Tsang, M.B.; Xu, H.M. (National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI (USA) Department of Physics Astronomy, Michigan State University, East Lansing, MI (USA)); Pratt, S. (Department of Physics, University of Wisconsin, Madison, WI (USA)); Fields, D.E.; Kwiatkowski, K.; Planeta, R.; Viola, V.E. Jr.; Yennello, S.J. (Indiana University Cyclotron Facility, Indiana University, Bloomington, IN (USA))

1990-10-22T23:59:59.000Z

296

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

297

Parsing Glucose Entry into the Brain: Novel Findings Obtained with Enzyme-based Glucose Biosensors  

Science Journals Connector (OSTI)

Parsing Glucose Entry into the Brain: Novel Findings Obtained with Enzyme-based Glucose Biosensors ... Extracellular levels of glucose in brain tissue reflect dynamic balance between its gradient-dependent entry from arterial blood and its use for cellular metabolism. ... Second, we present data on glucose responses induced in the nucleus accumbens (NAc) by salient environmental stimuli and discuss the relationships between local neuronal activation and rapid glucose entry into brain tissue. ...

Eugene A Kiyatkin; Ken T Wakabayashi

2014-11-27T23:59:59.000Z

298

Hydrodynamic equations for electrons in graphene obtained from the maximum entropy principle  

SciTech Connect

The maximum entropy principle is applied to the formal derivation of isothermal, Euler-like equations for semiclassical fermions (electrons and holes) in graphene. After proving general mathematical properties of the equations so obtained, their asymptotic form corresponding to significant physical regimes is investigated. In particular, the diffusive regime, the Maxwell-Boltzmann regime (high temperature), the collimation regime and the degenerate gas limit (vanishing temperature) are considered.

Barletti, Luigi, E-mail: luigi.barletti@unifi.it [Dipartimento di Matematica e Informatica “Ulisse Dini”, Università degli Studi di Firenze, Viale Morgagni 67/A, 50134 Firenze (Italy)

2014-08-15T23:59:59.000Z

299

Tafel slopes and corrosion rates obtained in the pre-Tafel region of polarization curves  

Science Journals Connector (OSTI)

A short review of previous attempts to determine Tafel slopes and corrosion rates from data obtained in the pre-Tafel region of polarization curves is followed by a description of the approach taken in the POLFIT program. Several examples are given of the application of this program including the use of factorial design experiments to determine the optimum conditions for formation of a chromate-free conversion coating on hot dipped galvanized steel.

Florian Mansfeld

2005-01-01T23:59:59.000Z

300

Predicting the sensitivity of the beryllium/scintillator layer neutron detector using Monte Carlo and experimental response functions  

SciTech Connect

A methodology for obtaining empirical curves relating absolute measured scintillation light output to beta energy deposited is presented. Output signals were measured from thin plastic scintillator using NIST traceable beta and gamma sources and MCNP5 was used to model the energy deposition from each source. Combining the experimental and calculated results gives the desired empirical relationships. To validate, the sensitivity of a beryllium/scintillator-layer neutron activation detector was predicted and then exposed to a known neutron fluence from a Deuterium-Deuterium fusion plasma (DD). The predicted and the measured sensitivity were in statistical agreement.

Styron, J. D., E-mail: jdstyro@sandia.gov; Cooper, G. W.; Carpenter, Ken; Bonura, M. A. [Department of Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico 87131 (United States); Ruiz, C. L.; Hahn, K. D.; Chandler, G. A.; Nelson, A. J.; Torres, J. A.; McWatters, B. R. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

2014-11-15T23:59:59.000Z

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

Correlation study of Franck-Condon barriers associated with electron self-exchange reactions with ionization potentials and electron affinities and experimental Born-Oppenheimer potentials  

Science Journals Connector (OSTI)

An accurate theoretical scheme for obtaining directly the Franck-Condon barrier associated with the electron self-exchange reaction from ionization potentials and electron affinities is presented. Applicability is tested using some diatomic molecular redox couples. The corresponding ionization potentials and electron affinities are obtained from the Born-Oppenheimer potential energy curves which are directly determined from the experimental vibration-rotational spectroscopic data. The Franck-Condon barriers are calculated for the electron self-exchange reactions and are also compared with those from other theoretical methods.

Yuxianq Bu; Yongjun Liu; Conghao Deng

1998-01-01T23:59:59.000Z

302

Method and apparatus of periodically obtaining accurate opacity monitor readings of an exhaust gas stream  

SciTech Connect

This patent describes in an opacity monitor associated with an exhaust stack, the monitor having a transmitter and a receiving which cooperate to measure a quantity of particulate matter in an exhaust gas stream, a method of periodically obtaining opacity monitor readings. It comprises: shielding the monitor from the exhaust gas stream by placing two windows adjacent to the monitor, a first window being placed between the transmitter and the exhaust gas stream and a second window being placed between the receiver and the exhaust gas stream; cleaning at least one of the windows for a first predetermined time period by spraying a volatile nonflammable cleaning solvent onto the window by means of a sprayer intermittently operable during the first predetermined time period while wiping the window with a reciprocating wiper arm in resilient engagement therewith; then obtaining an opacity monitor reading by directing a light beam across the exhaust stack from the transmitter via the first window through the exhaust gas stream to the receiver via the second window; and alternately repeating the step of cleaning the window with the step of obtaining an opacity monitor reading.

Weaver, K.L.; Bellows, J.C.

1990-01-23T23:59:59.000Z

303

Monitoring the process to obtain red wine enriched in resveratrol and piceatannol without quality loss  

Science Journals Connector (OSTI)

Stilbene-enriched wine is considered an interesting new food product with added value as a consequence of the numerous health-promoting properties ascribed to it, mainly from its trans-resveratrol content. Postharvest grapes have been treated with ultraviolet-C light to produce stilbene-enriched grapes that were later used in a conventional winemaking process to obtain a red wine enriched in stilbenes. By measuring oenological parameters and stilbene concentration it has been possible to monitor both the quality parameters and stilbenes throughout the process. The maximum concentration in trans-resveratrol and piceatannol was obtained after pressing, but there was significant loss from grape to wine. A significant increase in both piceatannol and trans-resveratrol concentration (up to 26 times and 3.2 times higher than in control, respectively) was achieved in bottled wine. Regarding the oenological parameters, the wines obtained possessed good quality, apart from a herbaceous aroma, which could not be identified by GC–olfactometry.

Raúl F. Guerrero; Belén Puertas; Maria J. Jiménez; Juan Cacho; Emma Cantos-Villar

2010-01-01T23:59:59.000Z

304

Ultra-sensitive thermal conductance measurement of one-dimensional nanostructures enhanced by differential bridge  

Science Journals Connector (OSTI)

Thermal conductivity of one-dimensional nanostructures such as nanowires nanotubes and polymer chains is of significant interest for understanding nanoscale thermal transport phenomena as well as for practical applications in nanoelectronics energy conversion and thermal management. Various techniques have been developed during the past decade for measuring this fundamental quantity at the individual nanostructure level. However the sensitivity of these techniques is generally limited to 1 × 10?9 W/K which is inadequate for small diameter nanostructures that potentially possess thermal conductance ranging between 10?11 and 10?10 W/K. In this paper we demonstrate an experimental technique which is capable of measuring thermal conductance of ?10?11 W/K. The improved sensitivity is achieved by using an on-chip Wheatstone bridge circuit that overcomes several instrumentation issues. It provides a more effective method of characterizing the thermal properties of smaller and less conductive one-dimensional nanostructures. The best sensitivity experimentally achieved experienced a noise equivalent temperature below 0.5 mK and a minimum conductancemeasurement of 1 × 10?11 W/K. Measuring the temperature fluctuation of both the four-point and bridge measurements over a 4 h time period shows a reduction in measured temperature fluctuation from 100 mK to 0.6 mK. Measurement of a 15 nm Genanowire and background conductance signal with no wire present demonstrates the increased sensitivity of the bridge method over the traditional four-point I-V measurement. This ultra-sensitive measurement platform allows for thermal measurements of materials at new size scales and will improve our understanding of thermal transport in nanoscale structures.

Matthew C. Wingert; Zack C. Y. Chen; Shooshin Kwon; Jie Xiang; Renkun Chen

2012-01-01T23:59:59.000Z

305

Potentials of Biomass Co-Combustion in Coal-Fired Boilers  

Science Journals Connector (OSTI)

The present work provides a survey on the potentials of co-combustion of biomass and biogenic wastes in large-scale coal- ... which is not obtainable in small-scale dedicated biomass combustors. Co-firing at low ...

J. Werther

2010-01-01T23:59:59.000Z

306

JOURNALDEPHYSIQUE ColloqueCl,suppl6ment aunO 1, Tome41,janvier 1980,page C1-115 SENSITIVE AREA OF A BACK-SCATTER-PIPE GAS FLCW DETECTOR FOR CONVERSION ELECTRON M&SBAUER SPECTRMTRY  

E-Print Network (OSTI)

OF A BACK-SCATTER-PIPE GAS FLCW DETECTOR FOR CONVERSION ELECTRON M&SBAUER SPECTRMTRY M. Inaba, K. Nomura on a position sensitivity was obtained for the better sample setting i n a detector. 1. Introduction.- !he gas detail. It i s important t o clarify several factors t h a t influence the sensitivity of a detector

Boyer, Edmond

307

Goal-oriented sensitivity analysis for lattice kinetic Monte Carlo simulations  

SciTech Connect

In this paper we propose a new class of coupling methods for the sensitivity analysis of high dimensional stochastic systems and in particular for lattice Kinetic Monte Carlo (KMC). Sensitivity analysis for stochastic systems is typically based on approximating continuous derivatives with respect to model parameters by the mean value of samples from a finite difference scheme. Instead of using independent samples the proposed algorithm reduces the variance of the estimator by developing a strongly correlated-“coupled”- stochastic process for both the perturbed and unperturbed stochastic processes, defined in a common state space. The novelty of our construction is that the new coupled process depends on the targeted observables, e.g., coverage, Hamiltonian, spatial correlations, surface roughness, etc., hence we refer to the proposed method as goal-oriented sensitivity analysis. In particular, the rates of the coupled Continuous Time Markov Chain are obtained as solutions to a goal-oriented optimization problem, depending on the observable of interest, by considering the minimization functional of the corresponding variance. We show that this functional can be used as a diagnostic tool for the design and evaluation of different classes of couplings. Furthermore, the resulting KMC sensitivity algorithm has an easy implementation that is based on the Bortz–Kalos–Lebowitz algorithm's philosophy, where events are divided in classes depending on level sets of the observable of interest. Finally, we demonstrate in several examples including adsorption, desorption, and diffusion Kinetic Monte Carlo that for the same confidence interval and observable, the proposed goal-oriented algorithm can be two orders of magnitude faster than existing coupling algorithms for spatial KMC such as the Common Random Number approach. We also provide a complete implementation of the proposed sensitivity analysis algorithms, including various spatial KMC examples, in a supplementary MATLAB source code.

Arampatzis, Georgios, E-mail: garab@math.uoc.gr [Department of Applied Mathematics, University of Crete (Greece) [Department of Applied Mathematics, University of Crete (Greece); Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003 (United States); Katsoulakis, Markos A., E-mail: markos@math.umass.edu [Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003 (United States)

2014-03-28T23:59:59.000Z

308

Statistical Error analysis of Nucleon-Nucleon phenomenological potentials  

E-Print Network (OSTI)

Nucleon-Nucleon potentials are commonplace in nuclear physics and are determined from a finite number of experimental data with limited precision sampling the scattering process. We study the statistical assumptions implicit in the standard least squares fitting procedure and apply, along with more conventional tests, a tail sensitive quantile-quantile test as a simple and confident tool to verify the normality of residuals. We show that the fulfilment of normality tests is linked to a judicious and consistent selection of a nucleon-nucleon database. These considerations prove crucial to a proper statistical error analysis and uncertainty propagation. We illustrate these issues by analyzing about 8000 proton-proton and neutron-proton scattering published data. This enables the construction of potentials meeting all statistical requirements necessary for statistical uncertainty estimates in nuclear structure calculations.

R. Navarro Perez; J. E. Amaro; E. Ruiz Arriola

2014-06-10T23:59:59.000Z

309

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%.

310

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

SciTech Connect

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

311

Piezoelectrically tunable resonance frequency beam utilizing a stress-sensitive film  

DOE Patents (OSTI)

Methods and apparatus for detecting particular frequencies of acoustic vibration utilize a piezoelectrically-tunable beam element having a piezoelectric layer and a stress sensitive layer and means for providing an electrical potential across the piezoelectric layer to controllably change the beam's stiffness and thereby change its resonance frequency. It is then determined from the response of the piezoelectrically-tunable beam element to the acoustical vibration to which the beam element is exposed whether or not a particular frequency or frequencies of acoustic vibration are detected.

Thundat, Thomas G. (Knoxville, TN); Wachter, Eric A. (Oak Ridge, TN)

2002-01-01T23:59:59.000Z

312

Posttetanic potentiation critically depends on an enhanced Ca2+ sensitivity of vesicle fusion mediated by presynaptic PKC  

Science Journals Connector (OSTI)

...Sakmann B ( 1995 ) J Physiol 489 : 825 – 840 . 24 Awatramani GB Price GD Trussell LO ( 2005 ) Neuron 48 : 109 – 121 . 25 Kim JH Sizov I Dobretsov M von Gersdorff...J Biol Chem 271 : 7265 – 7268 . 39 Wierda KDB Toonen RFG De Wit H Brussard AB Verhage M ( 2007 ) Neuron 54 : 275 – 290 . 40...

Natalya Korogod; Xuelin Lou; Ralf Schneggenburger

2007-01-01T23:59:59.000Z

313

Dose calculation errors due to inaccurate representation of heterogeneity correction obtained from computerized tomography  

SciTech Connect

Computerized tomography (CT) is used routinely in evaluating radiation therapy isodose plans. With the introduction of 3D algorithms such as the voxel raytrace, which determines inhomogeneity corrections from actual CT Hounsfield numbers, caution must be used when evaluating isodose calculations. Artifacts from contrast media and dental work, radiopaque markers placed by the treatment planner, and changing bowel and rectal air patterns all have the potential to introduce error into the calculation due to inaccurate assessment of high or low density. Radiopaque makers such as x-spot BB's or solder wire are placed externally on the patient. Barium contrast media introduced at the time of simulation may be necessary to visualize specific anatomical structures on the CT images. While these localization and visualization tools may be necessary, it is important to understand the effects they may introduce in the planning process. Other problems encountered are patient specific and out of the control of the treatment planner. These include high- and low-density streaking caused by dental work, which produce computational errors due to overestimation, and small bowel and rectal air, the patterns of which change on a daily basis and may result in underestimation of structure density. It is important for each treatment planner to have an understanding of how this potentially tainted CT information may be applied in dose calculations and the possible effects they may have. At our institution, the voxel raytrace calculation is automatically forced any time couch angle is introduced. Errors in the calculation from the above mentioned situations may be introduced if a heterogeneity correction is applied. Examples of potential calculation errors and the magnitude of each will be discussed. The methods used to minimize these errors and the possible solutions will also be evaluated.

Williams, Greg; Tobler, Matthew; Gaffney, David; Moeller, John; Leavitt, Dennis

2002-12-31T23:59:59.000Z

314

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

SciTech Connect

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

315

An expression for the bridge-mediated electron transfer rate in dye-sensitized solar cells  

Science Journals Connector (OSTI)

...transfer rate in dye-sensitized solar cells Emanuele Maggio Alessandro Troisi...CR) process in dye-sensitized solar cells, where the dye is often connected...tunnelling|dye-sensitized solar cell| 1. Introduction Dye-sensitized...

2014-01-01T23:59:59.000Z

316

Accepted Manuscript Studying the sensitivity of the pollutants concentrations caused by  

E-Print Network (OSTI)

-based sensitivity analysis, Sobol' bal sensitivity indices, Air pollution modeling, Multidimensional numericalAccepted Manuscript Studying the sensitivity of the pollutants concentrations caused by variations. Georgieva, S. Ivanovska, T. Ostromsky, Z. Zlatev, Studying the sensitivity of the pollutants concentrations

Dimov, Ivan

317

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.

318

A knowledge of the potential  

E-Print Network (OSTI)

is as important for understanding protein folding as is the potential surface for the H H2 reaction. estimated to protein folding, in which thousands of atoms take part. The under- standing of a reaction is based of experimental developments and theoretical advances.[1] By contrast, protein folding is so complex that even

Sali, Andrej

319

Dynamical Casimir-Polder potentials in non-adiabatic conditions  

E-Print Network (OSTI)

In this paper we review different aspects of the dynamical Casimir- Polder potential between a neutral atom and a perfectly conducting plate under nonequilibrium conditions. In order to calculate the time evolution of the atom-wall Casimir-Polder potential, we solve the Heisenberg equations describing the dynamics of the coupled system using an iterative technique. Different nonequilibrium initial states are considered, such as bare and partially dressed states. The partially dressed states considered are obtained by a sudden change of a physical parameter of the atom or of its position relative to the conducting plate. Experimental feasibility of detecting the considered dynamical effects is also discussed.

Riccardo Messina; Roberto Passante; Lucia Rizzuto; Salvatore Spagnolo; Ruggero Vasile

2014-04-09T23:59:59.000Z

320

Reduction of CCD observations obtained with the Fabry-Perot scanning interferometer. II. Additional Procedures  

E-Print Network (OSTI)

We describe a software package used at the Special Astrophysical Observatory of the Russian Academy of Sciences to reduce and analyze the data obtained with the Fabry-Perot scanning interferometer. We already described most of the algorithms employed in our earlier Paper I (Moiseev, 2002). In this paper we focus on extra procedures required in the case of the use of a high-resolution Fabry-Perot interferometer: removal of ghosts and measurement of the velocity dispersion of ionized gas in galactic and extragalactic objects.

A. V. Moiseev; O. V. Egorov

2008-05-15T23:59:59.000Z

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.


321

Comparison of product yields obtained from the New Albany Shale by different rapid heating retorting procedures  

SciTech Connect

Seven samples of New Albany Shale, Clegg Creek Member were independently evaluated for possible oil yield enhancement above Fischer Assay. Bulk samples were crushed, blended, sieved and riffled into representative aliquots and then divided between two laboratories. Samples were evaluated by the ASTM Fischer Assay and the Rapid Heat Up Assay (RHU). Results provided the first case of the independent evaluation of oil yield enhancement over Fischer Assay (FA) for eastern US oil shales carried out by different laboratories working on the same samples. Oil yield enhancements were obtained by both laboratories. Fischer Assay results were remarkably comparable indicating that reproducibility is possible for eastern US shale. Results from the assays are given.

Rubel, A.M.; Audeh, C.A.

1985-02-01T23:59:59.000Z

322

Digital Processing of Medical Images Obtained by a Si Microstrips Detector  

SciTech Connect

We studied the capability of Matlab in digital processing of breast tissues images with microcalcifications. We obtained digital images of different byopsies through a Bede X-ray tube, fixed at 20 kV and 1 mA. Radiation exposition time was varied. The byopsies were placed between a 120{mu}m collimator and a 128 strips detector, which was used to measure the absorption of X rays in the tissue. Matlab allowed the manipulation of digital images, and this software was intended to improve the identification of microcalcifications in breast tissues.

Diaz, Claudia C.; Montano, Luis M.; Fontaine, Marcos [Departamento de Fisica, Centro de Investigacion y de Estudios Avanzados del IPN, A. P. 14-740, 07000 Mexico, D. F. (Mexico); Leyva, Antonio [CEADEN, Calle 30 no. 502 e/ 5ta y 7ma Avenida, Playa, Havana (Cuba); Ortiz, Carlos M. [Clinica de Mama y Gineco-oncologia, Hospital General Tacuba, ISSSTE, Mexico, D. F. (Mexico)

2006-09-08T23:59:59.000Z

323

Results of the 2013 UT modeling benchmark obtained with models implemented in CIVA  

SciTech Connect

The 2013 Ultrasonic Testing (UT) modeling benchmark concerns direct echoes from side drilled holes (SDH), flat bottom holes (FBH) and corner echoes from backwall breaking artificial notches inspected with a matrix phased array probe. This communication presents the results obtained with the models implemented in the CIVA software: the pencilmodel is used to compute the field radiated by the probe, the Kirchhoff approximation is applied to predict the response of FBH and notches and the SOV (Separation Of Variables) model is used for the SDH responses. The comparison between simulated and experimental results are presented and discussed.

Toullelan, Gwénaël; Raillon, Raphaële; Chatillon, Sylvain [CEA, LIST, 91191Gif-sur-Yvette (France); Lonne, Sébastien [EXTENDE, Le Bergson, 15 Avenue Emile Baudot, 91300 MASSY (France)

2014-02-18T23:59:59.000Z

324

Cooling Energy Demand Evaluation by Meansof Regression Models Obtained From Dynamic Simulations  

E-Print Network (OSTI)

was calculated to be -8.78oC (Moscow in January) and maximum of 42.9 oC (Abu-Dhabi in August). The hourly values of outdoor air temperature and solar radiation were obtained using Trnsys (Trnsys, 2006) meteonorm files. b) Glazing surface and distribution... the ,,black-box,, function, dynamic simulations were conducted using Trnsys 16 software (Trnsys, 2005). The Trnsys building model, known as, Type 56, is compliant with general requirements of European Directive on the energy performance of buildings...

Catalina, T.; Virgone, J.

2011-01-01T23:59:59.000Z

325

Optimization and modeling studies for obtaining high injection efficiency at the Advanced Photon Source.  

SciTech Connect

In recent years, the optics of the Advanced Photon Source storage ring has evolved to a lower equilibrium emittance (2.5 nm-rad) at the cost of stronger sextupoles and stronger nonlinearities, which have reduced the injection efficiency from the virtual 100% of the high emittance mode. Over the years we have developed a series of optimizations, measurements, and modeling studies of the injection process, which allows us to obtain or maintain low injection losses. The above will be described along with the injection configuration.

Emery, L.; APS Operations Division

2005-01-01T23:59:59.000Z

326

Hamiltonian structure of reduced fluid models for plasmas obtained from a kinetic description  

E-Print Network (OSTI)

We consider the Hamiltonian structure of reduced fluid models obtained from a kinetic description of collisionless plasmas by Vlasov-Maxwell equations. We investigate the possibility of finding Poisson subalgebras associated with fluid models starting from the Vlasov-Maxwell Poisson algebra. In this way, we show that the only possible Poisson subalgebra involves the moments of zeroth and first order of the Vlasov distribution, meaning the fluid density and the fluid velocity. We find that the bracket derived in [Phys. Rev. Lett. 93, 175002 (2004)] which involves moments of order 2 is not a Poisson bracket since it does not satisfy the Jacobi identity.

Loïc De Guillebon; Cristel Chandre

2012-04-19T23:59:59.000Z

327

Test-Cost Sensitive Classification on Data with Missing Values  

E-Print Network (OSTI)

Test-Cost Sensitive Classification on Data with Missing Values Qiang Yang, Senior Member, IEEE, Charles Ling, Xiaoyong Chai, and Rong Pan Abstract--In the area of cost-sensitive learning, inductive learning algorithms have been extended to handle different types of costs to better represent

Yang, Qiang

328

Solid-State Photogalvanic Dye-Sensitized Solar Cells  

Science Journals Connector (OSTI)

Solid-State Photogalvanic Dye-Sensitized Solar Cells ... photogalvanic; dye-sensitized; solar cells; thermal; electron; transfer ... (3) Modern organic photovoltaic solar cells, wherein charge separation occurs in a photoactive layer of organic semiconductor material and must migrate to collecting electrodes,(4) can be regarded as solid-state photogalvanic cells. ...

Seare A. Berhe; Habtom B. Gobeze; Sundari D. Pokharel; Eunsol Park; W. Justin Youngblood

2014-05-29T23:59:59.000Z

329

Notch Sensitivity of Ceramic Composites with Rising Fracture Resistance  

E-Print Network (OSTI)

of common notched test configurations with the material's fracture resistance. Analogous treatments of notch sensitivity have been used previously for other materials that exhibit rising fracture resistance, includingNotch Sensitivity of Ceramic Composites with Rising Fracture Resistance Michael A. Mattoni

Zok, Frank

330

A theoretical study on stress sensitive differential amplifier (SSDA)  

E-Print Network (OSTI)

or load pair) will cause a current unmatchment in between of the two FETs which will follow the variation sensitivity is studied. The results show that both two input MOSFETs and two load MOSFETs of a SSDA can, the possibility of using active load FETs of a dif- ferential amplifier as stress sensitive element is discussed

Li, Jingjing

331

How Sensitive is Processor Customization to the Workload's Input Datasets?  

E-Print Network (OSTI)

How Sensitive is Processor Customization to the Workload's Input Datasets? Maximilien Breughe Zheng though is to what extent processor customiza- tion is sensitive to the training workload's input datasets. Current practice is to consider a single or only a few input datasets per workload during the processor

Eeckhout, Lieven

332

Sensitivity of Optimal Operation of an Activated Sludge Process Model  

E-Print Network (OSTI)

Sensitivity of Optimal Operation of an Activated Sludge Process Model Antonio Araujo, Simone sensitivity analysis of optimal operation conducted on an activated sludge process model based on the test.[7] applied a systematic procedure for control structure design of an activated sludge process

Skogestad, Sigurd

333

RARE EARTH ELEMENT SENSITIVITY FACTORS IN CALCIC PLAGIOCLASE (ANORTHITE)  

E-Print Network (OSTI)

RARE EARTH ELEMENT SENSITIVITY FACTORS IN CALCIC PLAGIOCLASE (ANORTHITE) C. Floss and B. Jolliff Mc Brookings Drive, St. Louis, MO 63130 1. Introduction The rare earth elements (REE) are sensitive indicators concentrations for each sample are listed in Table 1 and are shown in Fig. 1. Table 1. Rare Earth Element Data

334

Computational Modeling of Plasmon-Enhanced Light Absorption in a Multicomponent Dye Sensitized Solar Cell  

Science Journals Connector (OSTI)

Argonne-Northwestern Solar Energy Research Center Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States ... Fortunately, both the economical and the environmental issues associated with semiconductor based solar cells can be mitigated by using dye-sensitized solar cells (DSSCs),(4) which use organic dye molecules coated on TiO2 particles as the photoactive component to reduce fabrication expenses and eliminate expensive and toxic ingredients. ... for a given incident wavelength by combining this Hamiltonian coupling with free energy changes and ground state reorganization energies that are obtained using an implicit solvation simulation, physicochem. ...

Hanning Chen; Martin G. Blaber; Stacey D. Standridge; Erica J. DeMarco; Joseph T. Hupp; Mark A. Ratner; George C. Schatz

2012-04-11T23:59:59.000Z

335

Sensitivity Enhancement of Separated Local Field Experiments: Application to Membrane Proteins  

Science Journals Connector (OSTI)

Separated local field (SLF) experiments have been used for almost three decades to obtain structural information in solid-state NMR. ... Here, we propose a new suite of sensitivity enhanced SLF pulse sequences to measure CSA and DC for aligned membrane proteins and liquid crystalline molecules that will decrease the time needed for data acquisition. ... (1-3) These parameters are directly measured using separated local field (SLF) experiments that resolve the CSA of spin S and DC between spins I and S in two dimensions. ...

T. Gopinath; Raffaello Verardi; Nathaniel J. Traaseth; Gianluigi Veglia

2010-03-29T23:59:59.000Z

336

HOLMES - The Electron Capture Decay of 163Ho to Measure the Electron Neutrino Mass with sub-eV sensitivity  

E-Print Network (OSTI)

The European Research Council has recently funded HOLMES, a new experiment to directly measure the neutrino mass. HOLMES will perform a calorimetric measurement of the energy released in the decay of 163Ho. The calorimetric measurement eliminates systematic uncertainties arising from the use of external beta sources, as in experiments with beta spectrometers. This measurement was proposed in 1982 by A. De Rujula and M. Lusignoli, but only recently the detector technological progress allowed to design a sensitive experiment. HOLMES will deploy a large array of low temperature microcalorimeters with implanted 163Ho nuclei. The resulting mass sensitivity will be as low as 0.4 eV. HOLMES will be an important step forward in the direct neutrino mass measurement with a calorimetric approach as an alternative to spectrometry. It will also establish the potential of this approach to extend the sensitivity down to 0.1 eV. We outline here the project with its technical challenges and perspectives.

B. Alpert; M. Balata; D. Bennett; M. Biasotti; C. Boragno; C. Brofferio; V. Ceriale; D. Corsini; M. De Gerone; R. Dressler; M. Faverzani; E. Ferri; J. Fowler; F. Gatti; A. Giachero; J. Hays-Wehle; S. Heinitz; G. Hilton; U. Koester; M. Lusignoli; M. Maino; J. Mates; S. Nisi; R. Nizzolo; A. Nucciotti; G. Pessina; G. Pizzigoni; A. Puiu; S. Ragazzi; C. Reintsema; M. Ribeiro Gomes; D. Schmidt; D. Schumann; M. Sisti; D. Swetz; F. Terranova; J. Ullom

2014-12-16T23:59:59.000Z

337

HOLMES - The Electron Capture Decay of 163Ho to Measure the Electron Neutrino Mass with sub-eV sensitivity  

E-Print Network (OSTI)

The European Research Council has recently funded HOLMES, a new experiment to directly measure the neutrino mass. HOLMES will perform a calorimetric measurement of the energy released in the decay of 163Ho. The calorimetric measurement eliminates systematic uncertainties arising from the use of external beta sources, as in experiments with beta spectrometers. This measurement was proposed in 1982 by A. De Rujula and M. Lusignoli, but only recently the detector technological progress allowed to design a sensitive experiment. HOLMES will deploy a large array of low temperature microcalorimeters with implanted 163Ho nuclei. The resulting mass sensitivity will be as low as 0.4 eV. HOLMES will be an important step forward in the direct neutrino mass measurement with a calorimetric approach as an alternative to spectrometry. It will also establish the potential of this approach to extend the sensitivity down to 0.1 eV. We outline here the project with its technical challenges and perspectives.

Alpert, B; Bennett, D; Biasotti, M; Boragno, C; Brofferio, C; Ceriale, V; Corsini, D; De Gerone, M; Dressler, R; Faverzani, M; Ferri, E; Fowler, J; Gatti, F; Giachero, A; Hays-Wehle, J; Heinitz, S; Hilton, G; Koester, U; Lusignoli, M; Maino, M; Mates, J; Nisi, S; Nizzolo, R; Nucciotti, A; Pessina, G; Pizzigoni, G; Puiu, A; Ragazzi, S; Reintsema, C; Gomes, M Ribeiro; Schmidt, D; Schumann, D; Sisti, M; Swetz, D; Terranova, F; Ullom, J

2014-01-01T23:59:59.000Z

338

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).

339

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

340

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

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.


341

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

342

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

SciTech Connect

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

343

Simbol-X Hard X-ray Focusing Mirrors: Results Obtained During the Phase A Study  

SciTech Connect

Simbol-X will push grazing incidence imaging up to 80 keV, providing a strong improvement both in sensitivity and angular resolution compared to all instruments that have operated so far above 10 keV. The superb hard X-ray imaging capability will be guaranteed by a mirror module of 100 electroformed Nickel shells with a multilayer reflecting coating. Here we will describe the technogical development and solutions adopted for the fabrication of the mirror module, that must guarantee an Half Energy Width (HEW) better than 20 arcsec from 0.5 up to 30 keV and a goal of 40 arcsec at 60 keV. During the phase A, terminated at the end of 2008, we have developed three engineering models with two, two and three shells, respectively. The most critical aspects in the development of the Simbol-X mirrors are i) the production of the 100 mandrels with very good surface quality within the timeline of the mission, ii) the replication of shells that must be very thin (a factor of 2 thinner than those of XMM-Newton) and still have very good image quality up to 80 keV, iii) the development of an integration process that allows us to integrate these very thin mirrors maintaining their intrinsic good image quality. The Phase A study has shown that we can fabricate the mandrels with the needed quality and that we have developed a valid integration process. The shells that we have produced so far have a quite good image quality, e.g. HEW < or approx. 30 arcsec at 30 keV, and effective area. However, we still need to make some improvements to reach the requirements. We will briefly present these results and discuss the possible improvements that we will investigate during phase B.

Tagliaferri, G.; Basso, S.; Civitani, M.; Conconi, P.; Cotroneo, V.; Pareschi, G.; Spiga, D. [INAF-Osservatorio Astronomico di Brera, Via Bianchi 46, 23807 Merate (Italy); Borghi, G.; Garoli, D.; Mattarello, V.; Orlandi, A.; Valsecchi, G.; Vernani, D. [Media Lario Technologies S.r.l., Localita Pascolo, 23842 Bosisio Parini (Italy); Burkert, W.; Freyberg, M.; Hartner, G. [Max-Planck-Institut fuer Extraterrestrische Physik, Giessenbachstr. 1, 85748 Garching (Germany); Citterio, O. [INAF-Osservatorio Astronomico di Brera, Via Bianchi 46, 23807 Merate (Italy); Media Lario Technologies S.r.l., Localita Pascolo, 23842 Bosisio Parini (Italy); Gorenstein, P.; Romaine, S. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

2009-05-11T23:59:59.000Z

344

Organic dye-sensitized sponge-like TiO2 photoanode for dye-sensitized solar cells  

Science Journals Connector (OSTI)

...photoanode for dye-sensitized solar cells Jian Liu 1 Qiang Yang...Light harvesting inside a solar cell is crucial for overall...effects of polymerization-assisted assembly and flexible substrate...efficiency in dye-sensitized solar cells. Chem. Commun. 2005...

2013-01-01T23:59:59.000Z

345

Gas Saturation and Sensitivity Analysis Using CRiSP 1 Gas Saturation and Sensitivity Analysis Using CRiSP  

E-Print Network (OSTI)

Gas Saturation and Sensitivity Analysis Using CRiSP 1 Gas Saturation and Sensitivity Analysis Using of Engineers began the Gas Abatement Study in order to address the problem of gas and its effects on the Snake and Columbia Rivers. One important question is how much gas reductions caused by structural changes at a few

Washington at Seattle, University of

346

Potential energy surfaces and reaction dynamics of polyatomic molecules  

SciTech Connect

A simple empirical valence bond (EVB) model approach is suggested for constructing global potential energy surfaces for reactions of polyatomic molecular systems. This approach produces smooth and continuous potential surfaces which can be directly utilized in a dynamical study. Two types of reactions are of special interest, the unimolecular dissociation and the unimolecular isomerization. For the first type, the molecular dissociation dynamics of formaldehyde on the ground electronic surface is investigated through classical trajectory calculations on EVB surfaces. The product state distributions and vector correlations obtained from this study suggest very similar behaviors seen in the experiments. The intramolecular hydrogen atom transfer in the formic acid dimer is an example of the isomerization reaction. High level ab initio quantum chemistry calculations are performed to obtain optimized equilibrium and transition state dimer geometries and also the harmonic frequencies.

Chang, Yan-Tyng.

1991-11-01T23:59:59.000Z

347

Molecular surface electrostatic potentials in the analysis of non-hydrogen-bonding noncovalent interactions  

SciTech Connect

Electrostatic potentials computed on molecular surfaces are used to analyze some noncovalent interactions that are not in the category of hydrogen bonding, e.g. halogen bonding. The systems examined include halogenated methanes, substituted benzenes, s-tetrazine and 1,3-bisphenylurea. The data were obtained by ab initio SCF calculations. Electrostatic potentials, Non-hydrogen-bonding noncovalent interactions, Molecular surfaces.

Murray, J.S.; Paulsen, K.; Politzer, P.

1993-12-27T23:59:59.000Z

348

Scattering of a Klein-Gordon particle by a Woods-Saxon potential  

E-Print Network (OSTI)

We solve the Klein-Gordon equation in the presence of a spatially one-dimensional Woods-Saxon potential. The scattering solutions are obtained in terms of hypergeometric functions and the condition for the existence of transmission resonances is derived. It is shown how the zero-reflection condition depends on the shape of the potential.

Clara Rojas; Victor M. Villalba

2005-03-11T23:59:59.000Z

349

Risk and risk reduction results for Surry, obtained in support of NUREG-1150  

SciTech Connect

The Severe Accident Risk Rebaselining/Risk Reduction Program has completed a rebaselining of the risks to the public from a particular pressurized water reactor with a subatmospheric containment (Surry, Unit 1). Emphasis was placed on determining the magnitude and character of the uncertainties, rather than focusing on a point estimate. The risk reduction potential of a set of proposed safety option backfits was also studied, and their costs and benefits were evaluated. It was found that the risks from internal events are generally lower than previously evaluated in the Reactor Safety Study (RSS). However, certain unresolved issues (such as direct containment heating) cause the top of the uncertainty band to appear at a level that is comparable with the RSS point estimate. None of the postulated safety options appears to be cost-effective for the Surry power plant.

Benjamin, A.S.; Boyd, G.J.

1986-01-01T23:59:59.000Z

350

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. _________________________

351

Hagedorn divergences and tachyon potential  

E-Print Network (OSTI)

We consider the critical behavior for a string theory near the Hagedorn temperature. We use the factorization of the worldsheet to isolate the Hagedorn divergences at all genera. We show that the Hagedorn divergences can be resummed by introducing double scaling limits, which smooth the divergences. The double scaling limits also allow one to extract the effective potential for the thermal scalar. For a string theory in an asymptotic anti-de Sitter (AdS) spacetime, the AdS/CFT correspondence implies that the critical Hagedorn behavior and the relation with the effective potential should also arise from the boundary Yang-Mills theory. We show that this is indeed the case. In particular we find that the free energy of a Yang-Mills theory contains ``vortex'' contributions at finite temperature. Yang-Mills Feynman diagrams with vortices can be identified with contributions from boundaries of moduli space on the string theory side.

Mauro Brigante; Guido Festuccia; Hong Liu

2007-01-22T23:59:59.000Z

352

ASSESSMENT OF HOUSEHOLD CARBON FOOTPRINT REDUCTION POTENTIALS  

E-Print Network (OSTI)

Energy Efficiency Potential Study.  Technical Report Energy Efficiency  Potential Study.  Technical Report Energy Efficiency   Renewable Energy Technologies   Transportation   Assessment of Household Carbon Footprint Reduction Potentials is the final report 

Masanet, Eric

2010-01-01T23:59:59.000Z

353

Subtask 4.24 - Field Evaluation of Novel Approach for Obtaining Metal Emission Data  

SciTech Connect

Over the past two decades, emissions of mercury, nonmercury metals, and acid gases from energy generation and chemical production have increasingly become an environmental concern. On February 16, 2012, the U.S. Environmental Protection Agency (EPA) promulgated the Mercury and Air Toxics Standards (MATS) to reduce mercury, nonmercury metals, and HCl emissions from coal-fired power plants. The current reference methods for trace metals and halogens are wet-chemistry methods, EPA Method (M) 29 and M26A, respectively. As a possible alternative to EPA M29 and M26A, the Energy & Environmental Research Center (EERC) has developed a novel multielement sorbent trap (ME-ST) method to be used to sample for trace elements and/or halogens. Testing was conducted at three different power plants, and the results show that for halogens, the ME-ST halogen (ME-ST-H) method did not show any significant bias compared to EPA M26A and appears to be a potential candidate to serve as an alternative to the reference method. For metals, the ME-ST metals (ME-ST-M) method offers a lower detection limit compared to EPA M29 and generally produced comparable data for Sb, As, Be, Cd, Co, Hg, and Se. Both the ME-ST-M and M29 had problems associated with high blanks for Ni, Pb, Cr, and Mn. Although this problem has been greatly reduced through improved trap design and material selection, additional research is still needed to explore possible longer sampling durations and/or selection of lower background materials before the ME-ST-M can be considered as a potential alternative method for all the trace metals listed in MATS.

Pavlish, John; Laudal, Dennis; Thompson, Jeffrey

2013-12-31T23:59:59.000Z

354

Pre-launch Estimates for GLAST Sensitivity to Dark Matter Annihilation Signals  

SciTech Connect

We investigate the sensitivity of the Gamma-ray Large Area Space Telescope (GLAST) to indirectly detect weakly interacting massive particles (WIMPs) through the {gamma}-ray signal that their pair annihilation produces. WIMPs are among the favorite candidates to explain the compelling evidence that about 80% of the mass in the Universe is non-baryonic dark matter (DM). They are serendipitously motivated by various extensions of the standard model of particle physics such as Supersymmetry and Universal Extra Dimensions (UED). With its unprecedented sensitivity and its very large energy range (20 MeV to more than 300 GeV) the main instrument on board the GLAST satellite, the Large Area Telescope (LAT), will open a new window of discovery. As our estimates show, the LAT will be able to detect an indirect DM signature for a large class of WIMP models given a cuspy profile for the DM distribution. Using the current state of the art Monte Carlo and event reconstruction software developed within the LAT collaboration, we present preliminary sensitivity studies for several possible sources inside and outside the Galaxy. We also discuss the potential of the LAT to detect UED via the electron/positron channel. Diffuse background modeling and other background issues that will be important in setting limits or seeing a signal are presented.

Baltz, E.A.; Berenji, B.; /SLAC /KIPAC, Menlo Park; Bertone, G.; /Paris, Inst. Astrophys.; Bergstrom, L.; /Stockholm U.; Bloom, E.; /SLAC /KIPAC, Menlo Park; Bringmann, T.; /Stockholm U.; Chiang, J.; Cohen-Tanugi, J.; /SLAC /KIPAC, Menlo Park; Conrad, J.; /Stockholm U.; Edmonds, Y.; /SLAC /KIPAC, Menlo Park; Edsjo, J.; /Stockholm U.; Godfrey, G.; /SLAC /KIPAC, Menlo Park; Hughes, R.E.; /Ohio State U.; Johnson, R.P.; /UC, Santa Cruz; Lionetto, A.; /Rome U.,Tor Vergata /INFN, Rome2; Moiseev, A.A.; /CRESST; Morselli, A.; /Rome U.,Tor Vergata /INFN, Rome2; Moskalenko, I.V.; /Stanford U., HEPL /KIPAC, Menlo Park; Nuss, E.; /Montpellier U.; Ormes, J.F.; /Denver U.; Rando, R.; /INFN, Padua /Ohio State U. /Stockholm U. /Ohio State U. /Garching, Max Planck Inst., MPE /SLAC /KIPAC, Menlo Park /Ohio State U.

2009-05-15T23:59:59.000Z

355

Nitrogen-doped graphene as transparent counter electrode for efficient dye-sensitized solar cells  

SciTech Connect

Graphical abstract: Display Omitted Highlights: ? NG sheets are prepared through a hydrothermal reduction of graphite oxide. ? The transparent NG counter electrodes of DSCs are fabricated at room temperature. ? Transparent NG electrode exhibits excellent catalytic activity for the reduction of I{sub 3}{sup ?}. ? The DSC with NG electrode achieves a comparable efficiency to that of the Pt-based cell. ? The efficiency of rear illumination is about 85% that of front illumination. -- Abstract: Nitrogen-doped graphene sheets are prepared through a hydrothermal reduction of graphite oxide in the presence of ammonia and applied to fabricate the transparent counter electrode of dye-sensitized solar cells. The atomic percentage of nitrogen in doped graphene sample is about 2.5%, and the nitrogen bonds display pyridine and pyrrole-like configurations. Cyclic voltammetry studies demonstrate a much higher electrocatalytic activity toward I{sup ?}/I{sub 3}{sup ?} redox reaction for nitrogen-doped graphene, as compared with pristine graphene. The dye-sensitized solar cell with this transparent nitrogen-doped graphene counter electrode shows conversion efficiencies of 6.12% and 5.23% corresponding to front-side and rear-side illumination, respectively. Meanwhile, the cell with a Pt counter electrode shows a conversion efficiency of 6.97% under the same experimental condition. These promising results highlight the potential application of nitrogen-doped graphene in cost-effective, transparent dye-sensitized solar cells.

Wang, Guiqiang, E-mail: wgqiang123@163.com [School of Chemical Engineering, Shandong University of Technology, Zibo 255049 (China)] [School of Chemical Engineering, Shandong University of Technology, Zibo 255049 (China); Fang, Yanyan; Lin, Yuan [Institute of Chemistry, Chinese Academy of Science, Beijing 100080 (China)] [Institute of Chemistry, Chinese Academy of Science, Beijing 100080 (China); Xing, Wei; Zhuo, Shuping [School of Chemical Engineering, Shandong University of Technology, Zibo 255049 (China)] [School of Chemical Engineering, Shandong University of Technology, Zibo 255049 (China)

2012-12-15T23:59:59.000Z

356

Retrieval of Aerosol Optical Depth in Vicinity of Broken Clouds from Reflectance Ratios: Sensitivity Study  

SciTech Connect

We conducted a sensitivity study to better understand the potential of a new method for retrieving aerosol optical depth (AOD) under partly cloudy conditions. This method exploits reflectance ratios in the visible spectral range and provides an effective way to avoid three-dimensional (3D) cloud effects. The sensitivity study is performed for different observational conditions and random errors in input data. The results of the sensitivity study suggest that this ratio method has the ability to detect clear pixels even in close proximity to clouds. Such detection does not require a statistical analysis of the two-dimensional (2D) horizontal distribution of reflected solar radiation, and thus it could be customized for operational retrievals. In comparison with previously suggested approaches, the ratio method has the capability to increase the "harvest" of clear pixels. Similar to the traditional Independent Pixel Approximation (IPA), the ratio method has a low computational cost for retrieving AOD. In contrast to the IPA method, the ratio method provides much more accurate estimations of the AOD values under broken cloud conditions: pixel-based and domain-averaged estimations of errors in AOD are about 25% and 10%, respectively. Finally, both the ratio-based cloud screening and the accuracy of domain-averaged ratio-based AOD values do not suffer greatly when 5% random errors are introduced in the reflectances.

Kassianov, Evgueni I.; Ovtchinnikov, Mikhail; Berg, Larry K.; McFarlane, Sally A.; Flynn, Connor J.

2009-09-01T23:59:59.000Z

357

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

358

Potential applications of nanostructured materials in nuclear waste management.  

SciTech Connect

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

359

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

SciTech Connect

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

360

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

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361

An Ad-Hoc Method for Obtaining chi**2 Values from Unbinned Maximum Likelihood Fits  

E-Print Network (OSTI)

A common goal in an experimental physics analysis is to extract information from a reaction with multi-dimensional kinematics. The preferred method for such a task is typically the unbinned maximum likelihood method. In fits using this method, the likelihood is a goodness-of-fit quantity in that it effectively discriminates between available hypotheses; however, it does not provide any information as to how well the best hypothesis describes the data. In this paper, we present an {\\em ad-hoc} procedure for obtaining chi**2/n.d.f. values from unbinned maximum likelihood fits. This method does not require binning the data, making it very applicable to multi-dimensional problems.

M. Williams; C. A. Meyer

2008-06-30T23:59:59.000Z

362

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.

Rossabi, Joseph (105 Michael Ct., Aiken, SC 29801); May, Christopher P. (5002 Hesperus Dr., Columbia, MD 21044); Pemberton, Bradley E. (131 Glencarin Dr., Aiken, SC 29803); Shinn, Jim (Box 65, RFD. #1, South Royalton, VT 05068); Sprague, Keith (Box 234 Rte. 14, Brookfield, VT 05036)

1999-01-01T23:59:59.000Z

363

Quantum correlations in bulk properties of solids obtained from neutron scattering  

E-Print Network (OSTI)

We demonstrate that inelastic neutron scattering technique can be used to indirectly detect and measure the macroscopic quantum correlations quantified by both entanglement and discord in a quantum magnetic material, VODPO4 . 1D2O. The amount of quantum correlations is obtained 2 by analyzing the neutron scattering data of magnetic excitations in isolated V4+ spin dimers. Our quantitative analysis shows that the critical temperature of this material can reach as high as Tc = 82.5 K, where quantum entanglement drops to zero. Significantly, quantum discord can even survive at Tc = 300 K and may be used in room temperature quantum devices. Taking into account the spin-orbit (SO) coupling, we also predict theoretically that entanglement can be significantly enhanced and the critical temperature Tc increases with the strength of spin-orbit coupling.

Ben-Qiong Liu; Lian-Ao Wu; Guo-Mo Zeng; Jian-Ming Song; Wei Luo; Yang Lei; Guang-Ai Sun; Bo Chen; Shu-Ming Peng

2014-07-02T23:59:59.000Z

364

Highly Transparent Carbon Counter Electrode Prepared via an in Situ Carbonization Method for Bifacial Dye-Sensitized Solar Cells  

Science Journals Connector (OSTI)

Despite offering relatively high conversion efficiencies for solar energy, typical dye-sensitized solar cells suffer from durability problems that result from their use of org. ... The advantage of this new generation of solar cells is that they can be produced at low cost, i.e., potentially advantages and disadvantages of each type of platinum-free catalyst and share techniques for guiding the design of catalysts in future research. ...

Chenghao Bu; Yumin Liu; Zhenhua Yu; Sujian You; Niu Huang; Liangliang Liang; Xing-Zhong Zhao

2013-06-28T23:59:59.000Z

365

Composition and microstructure of zirconium and hafnium germanates obtained by different chemical routes  

SciTech Connect

The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. The products were characterized using high-temperature X-ray diffraction analysis (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and thermal (TG/DTA) analysis. To investigate the phase composition and stoichiometry of compounds the unit cell parameters were refined by full-profile Rietveld XRD analysis. The morphology of products and its evolution during high-temperature treatment was examined by SEM analysis. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. The ceramic route requires a multi-stage high-temperature treatment to obtain zirconium and hafnium germanates of 95% purity or more. Also, there are strong diffusion limitations to obtain hafnium germanate Hf{sub 3}GeO{sub 8} by ceramic route. On the contrary, the co-precipitation route leads to the formation of nanocrystalline single phase germanates of stoichiometric composition at a relatively low temperatures (less than 1000 °C). The results of quantitative XRD analysis showed the hafnium germanates are stoichiometric compounds in contrast to zirconium germanates that form a set of solid solutions. This distinction may be related to the difference in the ion radii of Zr and Hf. - Graphical abstract: The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. Display Omitted - Highlights: • Zr and Hf germanates were synthesized by ceramic and co-precipitation routes. • The morphology of products depends on the synthesis parameters. • Zirconium germanates forms a set of solid solutions. • Hafnium germanates are stoichiometric compounds.

Utkin, A.V., E-mail: utkinalex@hotmail.com; Prokip, V.E.; Baklanova, N.I.

2014-01-15T23:59:59.000Z

366

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

367

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

368

Clot Busting Simulations Test Potential Stroke Treatment  

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

Clot Busting Simulations Test Potential Stroke Treatment Clot Busting Simulations Test Potential Stroke Treatment September 24, 2013 | Tags: Biological and Environmental Research...

369

Sandia National Laboratories: Assessing the Economic Potential...  

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

EnergyBiofuelsAssessing the Economic Potential of Advanced Biofuels Assessing the Economic Potential of Advanced Biofuels Fabrication of AMI Demonstration Blade Begun...

370

Publication and Protection of Sensitive Site Information in a Grid Infrastructure  

SciTech Connect

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

371

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

372

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

373

Methodology for estimating biomass energy potential and its application to Colombia  

Science Journals Connector (OSTI)

Abstract This paper presents a methodology to estimate the biomass energy potential and its associated uncertainty at a country level when quality and availability of data are limited. The current biomass energy potential in Colombia is assessed following the proposed methodology and results are compared to existing assessment studies. The proposed methodology is a bottom-up resource-focused approach with statistical analysis that uses a Monte Carlo algorithm to stochastically estimate the theoretical and the technical biomass energy potential. The paper also includes a proposed approach to quantify uncertainty combining a probabilistic propagation of uncertainty, a sensitivity analysis and a set of disaggregated sub-models to estimate reliability of predictions and reduce the associated uncertainty. Results predict a theoretical energy potential of 0.744 EJ and a technical potential of 0.059 EJ in 2010, which might account for 1.2% of the annual primary energy production (4.93 EJ).

Miguel Angel Gonzalez-Salazar; Mirko Morini; Michele Pinelli; Pier Ruggero Spina; Mauro Venturini; Matthias Finkenrath; Witold-Roger Poganietz

2014-01-01T23:59:59.000Z

374

Solar energy potential in Pakistan  

Science Journals Connector (OSTI)

In view of the growing needs of energy in Pakistan the efficient use and development of renewable energy sources has become a major issue in the country. This has brought the intention of several national and multinational companies to design and implement a major work plan for energy conservation and construction of renewable energy sources like wind mills and solar panels. Fortunately Pakistan is among those countries in which sun warms the surface throughout the year and therefore has a strong potential for solar power generation. This study was conducted to explore those areas which are most suitable for solar energy potential using fifty eight meteorological stations covering the whole country. Angstrom equation and Hargreaves formula was used to calculate monthly solar energy potential by utilizing monthly climatical data of bright sunshine hours mean maximum and minimum temperatures. The lowest solar radiation intensity 76.49?W/m2 observed at Cherat during December and highest 339.25?W/m2 at Gilgit. The average monthly solar radiation intensity remains 136.05 to 287.36?W/m2 in the country. The results indicate that the values of solar radiation intensity greater than 200?W/m2 were observed in the months: February to October in Sindh March to October in almost all regions of Balochistan April to September in NWFP Northern Areas and Kashmir regions while March to October in Punjab. For 10?h a day average solar radiation intensity ranges from 1500?W/m2/day to 2750?W/m2/day in Pakistan especially in southern Punjab Sindh and Balochistan regions throughout the year. In an area of 100 m2 45?MW to 83?MW power per month may be generated in the above mentioned regions.

Shahzada Adnan; Azmat Hayat Khan; Sajjad Haider; Rashed Mahmood

2012-01-01T23:59:59.000Z

375

Thermal-Hydrological Sensitivity Analysis of Underground Coal Gasification  

SciTech Connect

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

376

Hertz Potentials and Differential Geometry  

E-Print Network (OSTI)

+ ~r (~r ~ m): (2.19) These eld relations automatically satisfy equations (2.3) and (2.4). Applying 8 the other two Maxwell equations yield = ~r ~r(~r ~ e) ~r @2~ e @t2 = r2(~r ~ e) @2~r ~ e @t2 = ~r (r2~ e @2~ e @t2 ) = ~r ( ~ e... such that ~ m = @ ~W @t ~rw: (2.27) As we note here an apparent asymmetry between the two Hertz potentials, let us back up and remember how ~ e and ~ m came to be. We speci ed a particular gauge for ~A and by equation (2.12), but suppose we relax...

Bouas, Jeffrey David

2011-08-08T23:59:59.000Z

377

Basic properties of the mixed oxides obtained by thermal decomposition of hydrotalcites containing different metallic compositions  

SciTech Connect

Carbonated layered double hydroxides (LDHs) containing Al, Fe, or Cr in a Mg(OH){sub 2} matrix or Al dissolved in hydroxides of Mg, Cu, Ni, Co, or Zn are used as precursors of basic catalysts. Decarbonation is studied by thermal analysis. The average basic strength, evaluated by the decarbonation temperature, is related to the partial charge of oxygen in the LDHs obtained from the Sanderson theory of electronegativity. The enthalpy of adsorption of CO{sub 2} on the resulting mixed oxides is measured by calorimetry. A homogeneous surface is generally observed for CO{sub 2} adsorption, with initial heats of adsorption close to those reported for MgO. The number of sites determined by this method is proportional to the rate constants for {beta}-isophorone isomerization, suggesting that both techniques measure surface properties. The layered structure in which OH{sup {minus}} is the compensating anion can be re-formed by hydration. This process does not appreciably change the adsorption of CO{sub 2}; thus, oxygens and hydroxyls show similar basic strengths in this case.

Valente, J.S.; Figueras, F.; Gravelle, M.; Kumbhar, P.; Lopez, J.; Besse, J.P.

2000-01-25T23:59:59.000Z

378

The component groups structure of DPPC bilayers obtained by specular neutron reflectometry  

E-Print Network (OSTI)

Specular neutron reflectometry (SNR) was measured on a system of a floating bilayer consisting of 1,2-dipalmitoyl-d62-\\textit{sn}-glycero-3-phosphocholine (d62-diC16:0PC) deposited over a 1,2-dibehenoyl-\\textit{sn}-glycero-3-phosphocholine (diC22:0PC) bilayer at 25 and 55 {\\deg}C. The internal structure of lipid bilayers was described by a one dimensional scattering length density profile (SLDP) model, originally developed for the evaluation of small angle scattering data. The corresponding model reflectivity curves successfully describe the experimental reflectivity curves of a supported bilayer in the gel phase and a system of a floating bilayer in the liquid crystalline phase. The reflectivity data from the supported bilayer were evaluated individually and served further as an input by the data treatment of floating bilayer reflectivity curves. The results yield internal structure of a deposited and floating bilayer on the level of component groups of lipid molecules. The obtained structure of the floating d62-diC16:0PC bilayer displays high resemblance to the bilayer structure in the form of unilamellar vesicles, however, simultaneously it shows rate of fluctuations in comparison to unilamellar vesicle bilayers.

Michal Beli?ka; Yuri Gerelli; Norbert Ku?erka; Giovanna Fragneto

2014-12-16T23:59:59.000Z

379

Mössbauer spectroscopy studies of carbon-encapsulated magnetic nanoparticles obtained by different routes  

Science Journals Connector (OSTI)

Carbon-encapsulated magnetic nanoparticles (CEMNPs) are nanomaterials with a core-shell structure. Their intrinsic properties result both from the unique nature of the encapsulated magnetic phases and the high chemical stability of the external carbon shells. CEMNPs may find many prospective applications e.g. in magnetic data storage catalysis xerography magnetic resonance imaging and in biomedical applications. Herein we present detailed structural studies of such nanostructures by Mössbauer spectroscopy x-ray diffraction(XRD) scanning electron microscopy and transmission electron microscopy. CEMNPs have been obtained by three different techniques: carbon arc combustion synthesis and radio frequency thermal plasma. The evaluation of the phase composition of the products was strongly limited due to the broadening and overlapping of the lines in XRDdiffraction patterns. The presence of the semicrystalline phases which could not been identified by XRD was established by Mössbauer spectroscopy. Furthermore the magnetic core phase composition was evaluated quantitatively. The products were purified before structural analyses to remove the nonencapsulated particles. The purification caused significant changes in the mass and the saturation magnetization. The Mössbauer spectra of the purified products were compared with the literature data concerning the as-produced CEMNPs.

M. Bystrzejewski; A. Grabias; J. Borysiuk; A. Huczko; H. Lange

2008-01-01T23:59:59.000Z

380

Directionally Sensitive Neutron Detector For Homeland Security Applications  

E-Print Network (OSTI)

Radiation Portal Monitor SNM Special Nuclear Material US United States vii TABLE OF CONTENTS Page ABSTRACT ................................................................................................................. iii ACKNOWLEDGEMENTS... of Existing Radiation Portal Monitors............................ 7 II.B. Previous Work in the Field of Directionally Sensitive Detectors ...... 11 III THEORY...

Spence, Grant

2012-02-14T23:59:59.000Z

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

Testing Spin-Statistics Connection by Highly Sensitive Spectroscopy  

E-Print Network (OSTI)

Testing Spin-Statistics Connection by Highly Sensitive Spectroscopy of CO2 Y.-H. Lien ,Y.-L. Hsu ,Y #12;Experimental Scheme Searching for the very weak or even nonexistent J=(2n+1) transitions 2 µm 0000

Shy,Jow-Tsong

382

Recursive Path Orderings can be ContextSensitive  

E-Print Network (OSTI)

Recursive Path Orderings can be Context­Sensitive Cristina Borralleras 1 , Salvador Lucas 2. Rubio is also supported by the spanish DURSI group 2001SGR 00254. Salvador Lucas is partially supported

Lucas, Salvador

383

The EoR sensitivity of the Murchison Widefield Array  

E-Print Network (OSTI)

Using the final 128 antenna locations of the Murchison Widefield Array (MWA), we calculate its sensitivity to the epoch of reionization (EoR) power spectrum of redshifted 21 cm emission for a fiducial model and provide the ...

Cappallo, Roger J.

384

Global ocean wind power sensitivity to surface layer stability  

E-Print Network (OSTI)

2009 Global ocean wind power sensitivity to surface layer1 May 2009. [ 1 ] Global ocean wind power has recently beenincreases mean global ocean wind power by +58% and À4%,

Capps, Scott B; Zender, Charles S

2009-01-01T23:59:59.000Z

385

Sensitivity of CUORE to Neutrinoless Double-Beta Decay  

E-Print Network (OSTI)

Sensitivity of CUORE to Neutrinoless Double-Beta Decay b c,:Results of the Search for Neutrinoless D o u b l e - B e t ah e i n a , Evidence for neutrinoless double beta decay, M o

Alessandria, F.

2013-01-01T23:59:59.000Z

386

Model sensitivity and uncertainty analysis using roadside air quality measurements  

E-Print Network (OSTI)

Model sensitivity and uncertainty analysis using roadside air quality measurements Sotiris, a probabilistic methodology for assessing urban air quality was proposed. Keywords: Air pollution; Model 535265 1. Introduction Mathematical modelling has been widely used for assessing ambient air quality

Paris-Sud XI, Université de

387

INTRODUCTION Embryonic development is sensitive to many factors, including  

E-Print Network (OSTI)

, mothers can attempt to maintain their developing embryos at an optimal temperature, and thus The Journal RESEARCH ARTICLE Maternal influences on early development: preferred temperature prior to oviposition1346 INTRODUCTION Embryonic development is sensitive to many factors, including hormones, toxins

Denardo, Dale

388

Sensitivity Analysis with Building Simulations to Support the Commissioning Process  

E-Print Network (OSTI)

Building performance simulations can support the commissioning process of buildings. This paper introduces an approach to implement saving measures using sensitivity analysis with a simulation model and data analysis of measured data from...

Burhenne, S.; Elci, M.; Jacob, D.; Neumann, C.; Herkel, S.

2010-01-01T23:59:59.000Z

389

Distribution-sensitivity of rank-dependent poverty measures  

Science Journals Connector (OSTI)

Abstract We propose a criterion to rank poverty measures on the basis of distribution-sensitivity. The criterion compares reactions to ‘lossy’ transfers among the poor. We focus on the class of rank-dependent poverty measures and provide distribution-sensitivity rankings of the poverty gap ratio, the first and second Sen measures, the Thon measure, the Shorrocks measure, and the Thon, Kakwani and S-Gini classes of measures. Moreover, we discuss the relationship between the proposed criterion and two alternative distribution-sensitivity criteria based on the Arrow–Pratt theory of risk aversion. Finally, we provide an empirically tractable necessary and sufficient condition for unanimous poverty rankings by all continuous and replication invariant rank-dependent poverty measures that exhibit a predetermined minimum degree of distribution-sensitivity.

Kristof Bosmans

2014-01-01T23:59:59.000Z

390

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

391

Preexposure sensitizes rats to the reinforcing effects of cocaine  

E-Print Network (OSTI)

PREEXPOSURE SENSITIZES RATS TO THE REINFORCING EFFECTS OF COCAINE A Thesis by BRIAN ARTHUR HORGER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1990 Major Subject: Psychology PREEXPOSURE SENSITIZES RATS TO THE REINFORCING EFFECTS OF COCAINE A Thesis by BRIAN ARTHUR HORGER Approved as to style and content by: Susan Sch nk ' (Chair of Committee) ~, r, :. ). ~+~~- ?- : Jack R...

Horger, Brian Arthur

2012-06-07T23:59:59.000Z

392

Sensitivity Analysis of the Gap Heat Transfer Model in BISON.  

SciTech Connect

This report summarizes the result of a NEAMS project focused on sensitivity analysis of the heat transfer model in the gap between the fuel rod and the cladding used in the BISON fuel performance code of Idaho National Laboratory. Using the gap heat transfer models in BISON, the sensitivity of the modeling parameters and the associated responses is investigated. The study results in a quantitative assessment of the role of various parameters in the analysis of gap heat transfer in nuclear fuel.

Swiler, Laura Painton; Schmidt, Rodney C.; Williamson, Richard (INL); Perez, Danielle (INL)

2014-10-01T23:59:59.000Z

393

The neurobiological mechanisms underlying the sensitization of pain and learning  

E-Print Network (OSTI)

THE NEUROBIOLOGICAL MECHANISMS UNDERLYING THE SENSITIZATION OF PAFN AND LEARNING A Senior Honors Thesis by BRIANNE COLEMARIE PATTON Submitted to the Office of Honors Programs & Academic Scholarships Texas A&M University in partial... fulfillment of the requirements of the UNIVERSITY UNDERGRADUATE RESEARCH FELLOWS April 200 l Psychology 2 THE NEUROBIOLOGICAL MECHANISMS UNDERLYING THE SENSITIZATION OF PAIN AND LEARNING A Senior Honors Thesis by BRIANNE COLEMARIE PATTON Submitted...

Patton, Brianne Colemarie

2013-02-22T23:59:59.000Z

394

Fusion-A Potential Power Source  

Science Journals Connector (OSTI)

Fusion-A Potential Power Source ... Nuclear energy, fusion reactions, magnetic confinement, and tokamaks. ...

Torkil H. Jensen

1994-01-01T23:59:59.000Z

395

Numerical analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging.  

SciTech Connect

Analyses of some of the steady-state, fully developed, and isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques are presented. NMR imaging offers powerful techniques to nonintrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. These experiments were carefully performed and probably represent the best available open literature data of their kind. COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been used to analyze the NMR data. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. COMMIX-M contains constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and virtual mass and shear lift forces extended to a continuum from the single particle literature. Also included is a solids partial-slip boundary condition to allow nonzero tangential velocity at the tube walls. This computer program is being developed at Argonne National Laboratory for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. Comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for model improvement are given. To the authors knowledge, these are the first such comparisons of theory and experiment

Ding, J.; Lyczkowski, R. W.; Sha, W. T.; Altobelli, S. A.; Fukushima, E.; Lovelace Medical Foundation

1993-01-01T23:59:59.000Z

396

Analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging  

SciTech Connect

COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been developed by Argonne National Laboratory. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. This computer program is in its early stages of development for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. COMMIX-M contains preliminary constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and shear lift forces from the literature. Also included is a solids partial slip boundary condition to allow non-zero tangential velocity at the tube walls. Analyses of some of the steady-state, fully-developed isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow are presented. These experimental data obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques were carefully performed and represent some of the best available open literature data of their kind. NMR imaging offers powerful techniques to non-intrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. Analyses of these NMR data, together with comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for future research are given. To the authors` knowledge, these are the first such comparisons of theory and experiment.

Ding, J.; Lyczkowski, R.W.; Sha, W.T. [Argonne National Lab., IL (United States); Altobelli, S.A.; Fukushima, E. [Lovelace Medical Foundation, Albuquerque, NM (United States)

1992-09-01T23:59:59.000Z

397

Analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging  

SciTech Connect

COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been developed by Argonne National Laboratory. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. This computer program is in its early stages of development for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. COMMIX-M contains preliminary constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and shear lift forces from the literature. Also included is a solids partial slip boundary condition to allow non-zero tangential velocity at the tube walls. Analyses of some of the steady-state, fully-developed isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow are presented. These experimental data obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques were carefully performed and represent some of the best available open literature data of their kind. NMR imaging offers powerful techniques to non-intrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. Analyses of these NMR data, together with comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for future research are given. To the authors' knowledge, these are the first such comparisons of theory and experiment.

Ding, J.; Lyczkowski, R.W.; Sha, W.T. (Argonne National Lab., IL (United States)); Altobelli, S.A.; Fukushima, E. (Lovelace Medical Foundation, Albuquerque, NM (United States))

1992-09-01T23:59:59.000Z

398

Development of a general method for obtaining the geometry of microfluidic networks  

SciTech Connect

In the present study, a general method for geometry of fluidic networks is developed with emphasis on pressure-driven flows in the microfluidic applications. The design method is based on general features of network's geometry such as cross-sectional area and length of channels. Also, the method is applicable to various cross-sectional shapes such as circular, rectangular, triangular, and trapezoidal cross sections. Using constructal theory, the flow resistance, energy loss and performance of the network are optimized. Also, by this method, practical design strategies for the fabrication of microfluidic networks can be improved. The design method enables rapid prediction of fluid flow in the complex network of channels and is very useful for improving proper miniaturization and integration of microfluidic networks. Minimization of flow resistance of the network of channels leads to universal constants for consecutive cross-sectional areas and lengths. For a Y-shaped network, the optimal ratios of consecutive cross-section areas (A{sub i+1}/A{sub i}) and lengths (L{sub i+1}/L{sub i}) are obtained as A{sub i+1}/A{sub i} = 2{sup ?2/3} and L{sub i+1}/L{sub i} = 2{sup ?1/3}, respectively. It is shown that energy loss in the network is proportional to the volume of network. It is also seen when the number of channels is increased both the hydraulic resistance and the volume occupied by the network are increased in a similar manner. Furthermore, the method offers that fabrication of multi-depth and multi-width microchannels should be considered as an integral part of designing procedures. Finally, numerical simulations for the fluid flow in the network have been performed and results show very good agreement with analytic results.

Razavi, Mohammad Sayed, E-mail: m.sayedrazavi@gmail.com; Salimpour, M. R. [Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of)] [Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of); Shirani, Ebrahim [Department of Engineering, Foolad Institute of Technology, FooladShahr 84916-63763, Isfahan (Iran, Islamic Republic of)] [Department of Engineering, Foolad Institute of Technology, FooladShahr 84916-63763, Isfahan (Iran, Islamic Republic of)

2014-01-15T23:59:59.000Z

399

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.

400

Technology of preparing anode films and the effect of co-sensitization in dye-sensitized solar cells  

Science Journals Connector (OSTI)

In recent years, with the increasing development of science and technology, solar cells have become a hot study. Especially,...-sensitized solar cells (DSSCs) have attracted much attention for...-cost and flexibl...

Jingchang Zhang; Zhenhai Fu; qian lv…

2012-09-01T23:59:59.000Z

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.


401

Relativistic N-N one-boson-exchange potentials with asymptotic power-law energy dependence  

Science Journals Connector (OSTI)

We update the relativistic version of the generalized one-boson-exchange potentials on the basis of the recent accumulation of experimental data. We introduce into the vector-meson potentials a damping factor decreasing with energy as well as an enhancing factor in the scalar-meson potential increasing with energy in accord with the asymptotic power-law energy dependence of the potentials required in high-energy physics. With these factors we obtain a markedly improved fit to all phase parameters. Thus, with 11 adjusted parameters we obtain a satisfactory description of the N-N interaction for the 0-515 MeV energy range.NUCLEAR STRUCTURE Relativistic one-boson-exchange potentials with asymptotic power-law energy dependence. Theoretical fits to phase shifts and observables.

T. Ueda and A. E. S. Green

1978-07-01T23:59:59.000Z

402

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

403

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.

404

Global Optical Potential for the Elastic Scattering of $^{6}$He at Low Energies  

E-Print Network (OSTI)

A set of global optical potential has been derived to describe the interactions of $^{6}$He at low energies. The elastic scattering angular distribution data measured so far for many systems, ranging from $^{12}$C to $^{209}$Bi, have been considered within the framework of the optical model in order to find a global potential set to describe the experimental data consistently. We report that very good agreement between theoretical and experimental results has been obtained with small $\\chi^{2}/N$ values by using the derived potential set. The reaction cross section and volume integrals of the potentials have been deduced from the theoretical calculations for all studied systems at relevant energies.

Y. Kucuk; I. Boztosun; T. Topel

2009-11-20T23:59:59.000Z

405

Effects of momentum-dependent nuclear potential on two-nucleon correlation functions and light cluster production in intermediate energy heavy-ion collisions  

E-Print Network (OSTI)

Using an isospin- and momentum-dependent transport model, we study the effects due to the momentum dependence of isoscalar nuclear potential as well as that of symmetry potential on two-nucleon correlation functions and light cluster production in intermediate energy heavy-ion collisions induced by neutron-rich nuclei. It is found that both observables are affected significantly by the momentum dependence of nuclear potential, leading to a reduction of their sensitivity to the stiffness of nuclear symmetry energy. However, the t/$^{3}$He ratio remains a sensitive probe of the density dependence of nuclear symmetry energy.

Lie-Wen Chen; C. M. Ko; Bao-An Li

2004-03-16T23:59:59.000Z

406

Obtaining and investigation of Pb1-xMnxTe(Se, S) semimagnetic semiconductor nanolayers sesitive to infrared rays  

Science Journals Connector (OSTI)

In the given work the energy spectrum and wave functions have been theoretically calculated for quantum-sized films of Pb1-xMnxTe (Se,S) semimagnetic semiconductors. The photo-and electroluminescence properties of Pb1-xMnxTe ... Keywords: detector, electroluminescence, energy spectrum, infrared, nanolayer, photoluminescence, semimagnetic semiconductor, sensitive

M. A. Mehrabova; I. R. Nuriyev; R. M. Mamishova; T. I. Kerimova

2011-11-01T23:59:59.000Z

407

CO2 Sequestration Potential of Texas Low-Rank Coals  

SciTech Connect

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (ECBM) recovery as an added benefit of sequestration. The main objectives for this reporting period were to perform reservoir simulation and economic sensitivity studies to (1) determine the effects of injection gas composition, (2) determine the effects of injection rate, and (3) determine the effects of coal dewatering prior to CO{sub 2} injection on CO{sub 2} sequestration in the Lower Calvert Bluff Formation (LCB) of the Wilcox Group coals in east-central Texas. To predict CO{sub 2} sequestration and ECBM in LCB coal beds for these three sensitivity studies, we constructed a 5-spot pattern reservoir simulation model and selected reservoir parameters representative of a typical depth, approximately 6,200-ft, of potential LCB coalbed reservoirs in the focus area of East-Central Texas. Simulation results of flue gas injection (13% CO{sub 2} - 87% N{sub 2}) in an 80-acre 5-spot pattern (40-ac well spacing) indicate that LCB coals with average net thickness of 20 ft can store a median value of 0.46 Bcf of CO{sub 2} at depths of 6,200 ft, with a median ECBM recovery of 0.94 Bcf and median CO{sub 2} breakthrough time of 4,270 days (11.7 years). Simulation of 100% CO{sub 2} injection in an 80-acre 5-spot pattern indicated that these same coals with average net thickness of 20 ft can store a median value of 1.75 Bcf of CO{sub 2} at depths of 6,200 ft with a median ECBM recovery of 0.67 Bcf and median CO{sub 2} breakthrough time of 1,650 days (4.5 years). Breakthrough was defined as the point when CO{sub 2} comprised 5% of the production stream for all cases. The injection rate sensitivity study for pure CO{sub 2} injection in an 80-acre 5-spot pattern at 6,200-ft depth shows that total volumes of CO{sub 2} sequestered and methane produced do not have significant sensitivity to injection rate. The main difference is in timing, with longer breakthrough times resulting as injection rate decreases. Breakthrough times for 80-acre patterns (40-acre well spacing) ranged from 670 days (1.8 years) to 7,240 days (19.8 years) for the reservoir parameters and well operating conditions investigated. The dewatering sensitivity study for pure CO{sub 2} injection in an 80-acre 5-spot pattern at 6,200-ft depth shows that total volumes of CO{sub 2} sequestered and methane produced do not have significant sensitivity to dewatering prior to CO{sub 2} injection. As time to start CO{sub 2} injection increases, the time to reach breakthrough also increases. Breakthrough times for 80-acre patterns (40-acre well spacing) ranged from 850 days (2.3 years) to 5,380 days (14.7 years) for the reservoir parameters and well injection/production schedules investigated. Preliminary economic modeling results using a gas price of $7-$8 per Mscf and CO{sub 2} credits of $1.33 per ton CO{sub 2} indicate that injection of flue gas (87% N{sub 2}-13% CO{sub 2}) and 50% N{sub 2}-50% CO{sub 2} are more economically viable than injecting 100% CO{sub 2}. Results also indicate that injection rate and duration and timing of dewatering prior to CO{sub 2} injection have no significant effect on the economic viability of the project(s).

Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

2005-10-01T23:59:59.000Z

408

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...

409

Increasing the applicability of density functional theory. IV. Consequences of ionization-potential improved exchange-correlation potentials  

SciTech Connect

This paper's objective is to create a “consistent” mean-field based Kohn-Sham (KS) density functional theory (DFT) meaning the functional should not only provide good total energy properties, but also the corresponding KS eigenvalues should be accurate approximations to the vertical ionization potentials (VIPs) of the molecule, as the latter condition attests to the viability of the exchange-correlation potential (V{sub XC}). None of the prominently used DFT approaches show these properties: the optimized effective potential V{sub XC} based ab initio dft does. A local, range-separated hybrid potential cam-QTP-00 is introduced as the basis for a “consistent” KS DFT approach. The computed VIPs as the negative of KS eigenvalue have a mean absolute error of 0.8 eV for an extensive set of molecule's electron ionizations, including the core. Barrier heights, equilibrium geometries, and magnetic properties obtained from the potential are in good agreement with experiment. A similar accuracy with less computational efforts can be achieved by using a non-variational global hybrid variant of the QTP-00 approach.

Verma, Prakash; Bartlett, Rodney J., E-mail: bartlett@ufl.edu [Quantum Theory Project, University of Florida, Gainesville, Florida 32611 (United States)

2014-05-14T23:59:59.000Z

410

Algae, the Potential Source of Energy  

Science Journals Connector (OSTI)

Algae are a large and diverse group of ... but also on snow, and on ice. Algae are very sensitive to different factors, so ... be used as biological and pollution indicators. Algae are useful as fertilizer, impor...

Magdalena Fr?c

2014-08-01T23:59:59.000Z

411

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

412

Evaluating the ignition sensitivity of thermal battery heat pellets  

SciTech Connect

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

413

Basic issues associated with four potential EUV resist schemes  

SciTech Connect

Four of the better developed resist schemes that are outgrowths of DUV (248 and 193 nm) resist development are considered as candidates for EUV. They are as follows: trilayer, a thin imaging layer on top of a refractor masking/pattern transfer layer on top of a planarizing and processing layer (PPL); solution developed, organometallic bilayer where the imaging and masking layer have been combined into one material on top of a PPL; and finally silylated resists. They are examined in a very general form without regard to the specifics of chemistry of the variations within each group, but rather to what is common to each group and how that affects their effectiveness as candidates for a near term EUV resist. In particular they are examined with respect to sensitivity, potential resolution, optical density, etching selectivity during pattern transfer, and any issues associated with pattern fidelity such as swelling.

Wheeler, D.R. [Sandia National Labs., Albuquerque, NM (United States); Kubiak, G.; Ray-Chaudhuri, A.; Henderson, C. [Sandia National Labs., Livermore, CA (United States)

1996-06-01T23:59:59.000Z

414

Guidelines for obtaining favorable project financing, federal tax incentives, and various state incentives to fund biomass energy development  

SciTech Connect

This paper outlines methods for funding biomass project development. This paper discusses sources of project financing, identifies potential problems associated with financing biomass projects, and provides a brief summary of typical lender requirements. In addition, this paper identifies potential tax incentives and other benefits available from federal and state governments to promote biomass energy.

Lubin, M. [Lubin Financial, San Diego, CA (United States); Sanderson, G.A. [Gomel & Davis, Atlanta, GA (United States)

1995-11-01T23:59:59.000Z

415

Assessing the discovery potential of directional detection of dark matter  

Science Journals Connector (OSTI)

There is a worldwide effort toward the development of a large time projection chamber devoted to directional dark matter detection. All current projects are being designed to fulfill a unique goal: identifying weakly interacting massive particle (WIMP) as such by taking advantage of the expected direction dependence of WIMP-induced events toward the constellation Cygnus. However, such proof of discovery requires a careful statistical data treatment. In this paper, the discovery potential of forthcoming directional detectors is addressed by using a frequentist approach based on the profile likelihood ratio test statistic. This allows us to estimate the expected significance of a dark matter detection taking into account astrophysical and experimental uncertainties. We show that the energy threshold and the background contamination are key experimental issues for directional detection, while angular resolution and sense recognition efficiency only mildly affect the sensitivity and the energy resolution is unimportant. This way, we found that a 30 kg.year CF4 directional experiment could reach a 3? sensitivity at 90% C.L. down to 10-5??pb and 3.10-4??pb for the WIMP-proton axial cross section in the most optimistic and pessimistic detector performance case, respectively.

J. Billard; F. Mayet; D. Santos

2012-02-07T23:59:59.000Z

416

E-Print Network 3.0 - activates atp-sensitive potassium Sample...  

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

atp-sensitive potassium Search Powered by Explorit Topic List Advanced Search Sample search results for: activates atp-sensitive potassium Page: << < 1 2 3 4 5 > >> 1 ATP-sensitive...

417

Efficient Simulation, Accurate Sensitivity Analysis and Reliable Parameter Estimation for Delay Differential  

E-Print Network (OSTI)

Efficient Simulation, Accurate Sensitivity Analysis and Reliable Parameter Estimation for Delay 2009 by Hossein ZivariPiran #12;Abstract Efficient Simulation, Accurate Sensitivity Analysis for approximating the solution, performing a sensitivity analysis and estimating unknown parameters. In this thesis

Toronto, University of

418

Efficient sensitivity analysis for flow and transport in the Earth's crust and mantle  

Science Journals Connector (OSTI)

......1985. Sensitivity analysis for steady state...1963. Sensitivity Analysis of Dynamical Systems...cyclically operated reactors and separators...Application of sensitivity analysis to oil refinery emission, Reliability Eng. Sys. Safety......

C. A. Hier-Majumder; B. J. Travis; E. Bélanger; G. Richard; A. P. Vincent; D. A. Yuen

2006-08-01T23:59:59.000Z

419

Elastic alpha scattering experiments and the alpha-nucleus optical potential at low energies  

E-Print Network (OSTI)

High precision angular distribution data of ($\\alpha$,$\\alpha$) elastic scattering are presented for the nuclei $^{89}$Y, $^{92}$Mo, $^{106,110,116}$Cd, $^{112,124}$Sn, and $^{144}$Sm at energies around the Coulomb barrier. Such data with small experimental uncertainties over the full angular range (20-170 degrees) are the indispensable prerequisite for the extraction of local optical potentials and for the determination of the total reaction cross section $\\sigma_{\\rm{reac}}$. A systematic fitting procedure was applied to the presented experimental scattering data to obtain comprehensive local potential parameter sets which are composed of a real folding potential and an imaginary potential of Woods-Saxon surface type. The obtained potential parameters were used in turn to construct a new systematic $\\alpha$-nucleus potential with very few parameters. Although this new potential cannot reproduce the angular distributions with the same small deviations as the local potential, the new potential is able to predict the total reaction cross sections for all cases under study.

P. Mohr; G. G. Kiss; Zs. Fülöp; D. Galaviz; Gy. Gyürky; E. Somorjai

2012-12-12T23:59:59.000Z

420

The potential of renewable energy  

SciTech Connect

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

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421

Pushing The Sample-Size Limit Of Infrared Vibrational Nano-Spectroscopy: From Monolayer Towards Single molecule sensitivity  

SciTech Connect

While scattering-scanning near-field optical microscopy (s-SNOM) has demonstrated its potential to extend infrared (IR) spectroscopy into the nanometer scale, it has not yet reached its full potential in terms of spectroscopic sensitivity. We combine broadband femtosecond mid-IR excitation with an optimized spectral irradiance of 2 W/cm2/ cm–1 (power/area/bandwidth) and a combination of tip- and substrate enhancement to demonstrate single-monolayer sensitivity with exceptional signal-to-noise ratio. Using interferometric time domain detection, the near-field IR s-SNOM spectral phase directly reflects the molecular vibrational resonances and their intrinsic line shapes. We probe the stretching resonance of 1000 carbonyl groups at 1700 cm–1 in a self-assembled monolayer of 16-mercaptohexadecanoic acid (MHDA) on an evaporated gold substrate with spectroscopic contrast and sensitivity of 100 vibrational oscillators. From these results we provide a roadmap for achieving true single-molecule IR vibrational spectroscopy in s-SNOM by implementing optical antenna resonant enhancement, increased spectral pump power, and improved detection schemes.

Xu, Xiaoji G.; Rang, Matthias; Craig, Ian M.; Rashcke, Markus B.

2012-06-18T23:59:59.000Z

422

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

423

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

424

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

425

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

426

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

427

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

428

Instrumented Water Tanks can Improve Air Shower Detector Sensitivity  

E-Print Network (OSTI)

Previous works have shown that water Cherenkov detectors have superior sensitivity to those of scintillation counters as applied to detecting extensive air showers (EAS). This is in large part due to their much higher sensitivity to EAS photons which are more than five times more numerous than EAS electrons. Large area water Cherenkov detectors can be constructed relatively cheaply and operated reliably. A sparse detector array has been designed which uses these types of detectors to substantially increase the area over which the Milagro Gamma Ray Observatory collects EAS information. Improvements to the Milagro detector's performance characteristics and sensitivity derived from this array and preliminary results from a prototype array currently installed near the Milagro detector will be presented.

R. Atkins; W. Benbow; D. Berley; M. -L. Chen; D. G. Coyne; R. S. Delay; B. L. Dingus; D. E. Dorfan; R. W. Ellsworth; D. Evans; A. Falcone; L. Fleysher; R. Fleysher; G. Gisler; J. A. Goodman; T. J. Haines; C. M. Hoffman; S. Hugenberger; L. A. Kelley; I. Leonor; J. Macri; M. McConnell; J. F. McCullough; J. E. McEnery; R. S. Miller; A. I. Mincer; M. F. Morales; P. Nemethy; J. M. Ryan; M. Schneider; B. Shen; A. Shoup; G. Sinnis; A. J. Smith; G. W. Sullivan; T. N. Thompson; O. T. Tumer; K. Wang; M. O. Wascko; S. Westerhoff; D. A. Williams; T. Yang; G. B. Yodh

1999-07-15T23:59:59.000Z

429

Gas sensitive materials for gas detection and methods of making  

SciTech Connect

A gas sensitive material comprising SnO.sub.2 nanocrystals doped with In.sub.2O.sub.3 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 SnO.sub.2 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

2014-07-15T23:59:59.000Z

430

Potential Vorticity Anomalies Associated with Squall Lines  

Science Journals Connector (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

431

United States Wind Resource Potential Chart  

Wind Powering America (EERE)

18,000 Rated Capacity Above Indicated CF (GW) United States - Wind Resource Potential Cumulative Rated Capacity vs. Gross Capacity Factor (CF) 80 m The estimates show the potential...

432

Requirements: Date of Event: ___________ You must obtain a signed burn permit from Campus Fire Safety or Public Safety.  

E-Print Network (OSTI)

to obtain a permit. Open burning must be 50 feet away from nearest field, brush, or structure. The fire pit: Open burning - bonfires, camp fires, open pits, etc. Only an approved enclosed fire pit structure canRequirements: Date of Event: ___________ You must obtain a signed burn permit from Campus Fire

Royer, Dana

433

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

434

E-Print Network 3.0 - approach sensitizes cancer Sample Search...  

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

sensitizes cancer Search Powered by Explorit Topic List Advanced Search Sample search results for: approach sensitizes cancer Page: << < 1 2 3 4 5 > >> 1 Prostate cancer is the...

435

E-Print Network 3.0 - activate brain sulfonylurea-sensitive Sample...  

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

brain sulfonylurea-sensitive Search Powered by Explorit Topic List Advanced Search Sample search results for: activate brain sulfonylurea-sensitive Page: << < 1 2 3 4 5 > >> 1...

436

E-Print Network 3.0 - anisotropic finite-frequency sensitivity...  

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

to study the finite-frequency sensitivity to anisotropic parameters... will see later. Smith et al. (2004) introduce 2-D anisotropic sensitivity kernels for finite-frequency......

437

Conditionally exactly soluble potentials and supersymmetry  

Science Journals Connector (OSTI)

It is shown that the condition required for one of the potentials considered by Dutra [Phys. Rev. A 47, R2435 (1993)] to be a conditionally exactly soluble potential is the same as that the potential can be put in an explicitly supersymmetric form.

Nivedita Nag; R. Roychoudhury; Y. P. Varshni

1994-06-01T23:59:59.000Z

438

Potential Energy Surfaces Donald G. Truhlar  

E-Print Network (OSTI)

. Meyers (Academic Press, New York, 2001), Vol. 13, pages 9-17. httpPotential Energy Surfaces Donald G. Truhlar University of Minnesota I. Introduction II. Quantum Mechanical Basis for Adiabatic Potential Energy Surfaces III. Topology of Adiabatic Potential Energy Surfaces

Truhlar, Donald G

439

Global potential for wind-generated electricity  

Science Journals Connector (OSTI)

...Annual wind energy potential...Monthly wind energy potential for...on a U.S. national basis depending...electricity to other energy forms. Plug-in...transmission grid. Expansion...in potential renewable resources, not...relating to the integration of electricity...relates to the challenge of matching...

Xi Lu; Michael B. McElroy; Juha Kiviluoma

2009-01-01T23:59:59.000Z

440

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 &...

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

Effect of Reducing Groundwater on the Retardation of Redox-Sensitive Radionuclides  

SciTech Connect

Laboratory batch sorption experiments were used to investigate variations in the retardation behavior of redox-sensitive radionuclides. Water-rock compositions used during these experiments were designed to simulate subsurface conditions at the Nevada Test Site (NTS), where a suite of radionuclides were deposited as a result of underground nuclear testing. Experimental redox conditions were controlled by varying the oxygen content inside an enclosed glove box and by adding reductants into the testing solutions. Under atmospheric (oxidizing) conditions, the radionuclide distribution coefficients varied with the mineralogical composition of the sorbent and the water chemistry. Under reducing conditions, distribution coefficients showed marked increases for {sup 99}Tc and {sup 237}Np in devitrified tuff, but much smaller variations in alluvium, carbonate rock, and zeolitic tuff. This effect was particularly important for {sup 99}Tc, which tends to be mobile under oxidizing conditions. Unlike other redox-sensitive radionuclides, iodine sorption may decrease under reducing conditions when I{sup -} is the predominant species. Overall, sorption of U to alluvium, devitrified tuff, and zeolitic tuff under atmospheric conditions was less than in the glove-box tests. However, the mildly reducing conditions achieved here were not likely to result in substantial U(VI) reduction to U(IV). Sorption of Pu was not affected by the decreasing redox conditions achieved in this study, as the predominant sorbed Pu species in all conditions was expected to be the low-solubility and strongly sorbing Pu(OH){sub 4}. Depending on the aquifer lithology, the occurrence of reducing conditions along a groundwater flowpath could potentially contribute to the retardation of redox-sensitive radionuclides {sup 99}Tc and {sup 237}Np, which are commonly identified as long-term dose contributors in the risk assessment in various nuclear facilities.

Hu, Q; Zavarin, M; Rose, T P

2008-04-21T23:59:59.000Z

442

Sensitivity of storage field performance to geologic and cavern design parameters in salt domes.  

SciTech Connect

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

443

Sensitivity of storage field performance to geologic and cavern design parameters in salt domes.  

SciTech Connect

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

444

Grid Parity for Residential Photovoltaics in the United States: Key Drivers and Sensitivities; Preprint  

SciTech Connect

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

445

The ion potential in warm dense matter: wake effects due to streaming degenerate electrons  

E-Print Network (OSTI)

The effective dynamically screened potential of a classical ion in a stationary flowing quantum plasma at finite temperature is investigated. This is a key quantity for thermodynamics and transport of dense plasmas in the warm dense matter regime. To compute this potential a linear response description of the electrons via the Mermin dielectric function is utilized with electron-electron collisions taken into account via a relaxation time approximation. The ion potential strongly deviates from the static Yukawa potential exhibiting the familiar oscillatory structure with attractive minima (wake potential). This potential is analyzed in detail for high-density plasmas with values of the Brueckner parameter in the range $0.1 \\le r_s \\le 1$, for a broad range of plasma temperature and electron streaming velocity. It is shown that wake effects become weaker with increasing temperature of the electrons. Finally, we obtain the minimal electron streaming velocity for which attraction between ions occurs. This veloci...

Moldabekov, Zhandos; Bonitz, Michael; Ramazano, Tlekkabul

2014-01-01T23:59:59.000Z

446

Wave Functions and Energy Terms of the SCHRÖdinger Equation with Two-Center Coulomb Plus Harmonic Oscillator Potential  

E-Print Network (OSTI)

Schr\\"odinger equation for two center Coulomb plus harmonic oscillator potential is solved by the method of ethalon equation at large intercenter separations. Asymptotical expansions for energy term and wave function are obtained in the analytical form.

D. Matrasulov

1998-04-17T23:59:59.000Z

447

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

448

Sensitivity analysis of Monju using ERANOS with JENDL-4.0  

SciTech Connect

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

449

CP violation conditions in N-Higgs-doublet potentials  

E-Print Network (OSTI)

Conditions for CP violation in the scalar potential sector of general N-Higgs-doublet models (NHDMs) are analyzed from a group theoretical perspective. For the simplest two-Higgs-doublet model (2HDM) potential, a minimum set of conditions for explicit and spontaneous CP violation is presented. The conditions can be given a clear geometrical interpretation in terms of quantities in the adjoint representation of the basis transformation group for the two doublets. Such conditions depend on CP-odd pseudoscalar invariants. When the potential is CP invariant, the explicit procedure to reach the real CP-basis and the explicit CP transformation can also be obtained. The procedure to find the real basis and the conditions for CP violation are then extended to general NHDM potentials. The analysis becomes more involved and only a formal procedure to reach the real basis is found. Necessary conditions for CP invariance can still be formulated in terms of group invariants: the CP-odd generalized pseudoscalars. The problem can be completely solved for three Higgs-doublets.

C. C. Nishi

2006-05-14T23:59:59.000Z

450

Supramolecular Interactions of Chenodeoxycholic Acid Increase the Efficiency of Dye-Sensitized Solar Cells Based on a Cobalt Electrolyte  

Science Journals Connector (OSTI)

Upon photoexcitation of the chemisorbed dye, charge separation occurs at the dye-sensitized semiconductor interface, and electrons are injected into the oxide conduction band (CB); the generated charges travel across the TiO2 nanoparticle network and can be collected at the transparent conducting glass back contact. ... (19, 22-26) Fully organic sensitizers have also been developed because of their increased molar extinction coefficient, as compared to Ru(II)-dyes, spectral tunability, and reduced environmental impact,(27, 28) and showed very high photovoltaic efficiencies, exceeding 10%. ... The advantage of this new generation of solar cells is that they can be produced at low cost, i.e., potentially <1 U S. $/peak watt. ...

Paolo Salvatori; Gabriele Marotta; Antonio Cinti; Chiara Anselmi; Edoardo Mosconi; Filippo De Angelis

2013-02-06T23:59:59.000Z

451

Damage potential characteristics of near-field earthquake motions  

SciTech Connect

In recent major earthquakes; i.e., 1994 Northridge earthquake in the US and 1995 Great Kansai earthquake in Japan, several close-distance strong ground motions have been obtained, which may be of significant interest to earthquake/structural engineers. The damage potential of those recently obtained ground motions is examined based on the nonlinear response analyses of various SDOF systems. For comparison purposes, the El Centro records from the 1940 Imperial Valley earthquake, as well as a set of artificial motions consistent with the R.G. 1.60 spectrum were also used. The engineering insights regarding the seismic design of structures are discussed based on a series of parametric studies.

Park, Y. [Brookhaven National Lab., Upton, NY (United States); Chokshi, N. [Nuclear Regulatory Commission, Washington, DC (United States)

1997-04-01T23:59:59.000Z

452

Separable Representation of Proton-Nucleus Optical Potentials  

E-Print Network (OSTI)

Recently, a new approach for solving the three-body problem for (d,p) reactions in the Coulomb-distorted basis in momentum space was proposed. Important input quantities for such calculations are the scattering matrix elements for proton- and neutron-nucleus scattering. We present a generalization of the Ernst-Shakin-Thaler scheme in which a momentum space separable representation of proton-nucleus scattering matrix elements can be calculated in the Coulomb basis. The viability of this method is demonstrated by comparing S-matrix elements obtained for p$+^{48}$Ca and p$+^{208}$Pb for a phenomenological optical potential with corresponding coordinate space calculations.

L. Hlophe; V. Eremenko; Ch. Elster; F. M. Nunes; G. Arbanas; J. E. Escher; I. J. Thompson

2014-09-14T23:59:59.000Z

453

Separable Representation of Proton-Nucleus Optical Potentials  

E-Print Network (OSTI)

Recently, a new approach for solving the three-body problem for (d,p) reactions in the Coulomb-distorted basis in momentum space was proposed. Important input quantities for such calculations are the scattering matrix elements for proton- and neutron-nucleus scattering. We present a generalization of the Ernst-Shakin-Thaler scheme in which a momentum space separable representation of proton-nucleus scattering matrix elements can be calculated in the Coulomb basis. The viability of this method is demonstrated by comparing S-matrix elements obtained for p$+^{48}$Ca and p$+^{208}$Pb for a phenomenological optical potential with corresponding coordinate space calculations.

Hlophe, L; Elster, Ch; Nunes, F M; Arbanas, G; Escher, J E; Thompson, I J

2014-01-01T23:59:59.000Z

454

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.

455

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

456

Power Grid Correction Using Sensitivity Analysis Meric Aydonat  

E-Print Network (OSTI)

Power Grid Correction Using Sensitivity Analysis Meric¸ Aydonat Department of ECE University University of Toronto Toronto, Ontario, Canada E-mail: f.najm@utoronto.ca Abstract--Power grid voltage verification has become a crucial step in reliable high-speed chip design. Power grid verification

Najm, Farid N.

457

Gender-Sensitive Automated Negotiators Ron Katz and Sarit Kraus  

E-Print Network (OSTI)

Gender-Sensitive Automated Negotiators Ron Katz and Sarit Kraus Department of Computer Science This paper introduces an innovative approach for automated negotiating using the gender of human opponents, and models the typical behavior of males and of females. The two models are used in order to match an optimal

Kraus, Sarit

458

Precise Enforcement of Progress-Sensitive Security Scott Moore  

E-Print Network (OSTI)

Precise Enforcement of Progress-Sensitive Security Scott Moore Harvard University Aslan Askarov-security (e.g., public or trusted) information. Our system is parameterized on a termination oracle of a program, then an attacker may be able to make a system unavail- able, by causing a server loop to exit (e

Chong, Stephen

459

Context Sensitive Mathematical Character Recognition Elena Smirnova Stephen M. Watt  

E-Print Network (OSTI)

Context Sensitive Mathematical Character Recognition Elena Smirnova Stephen M. Watt Ontario Research Centre for Computer Algebra The University of Western Ontario London Ontario, Canada {elena,watt handwritten mathematical expressions. Watt and Xie [5, 6] have studied methods to improve the performance

Watt, Stephen M.

460

Hierarchically structured photoelectrodes for dye-sensitized solar cells  

E-Print Network (OSTI)

-sensitized solar cells (DSCs) and organic/ inorganic hybrid solar cells. Guozhong Cao Guozhong Cao, Ph, and authored and edited 5 books, including ``Nanostructures and Nanomaterials''. His current research-ion batteries, supercapacitors, and hydrogen storage materials. This journal is ª The Royal Society of Chemistry

Cao, Guozhong

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.


461

Variations in the Photo-Electric Sensitivity of Platinum  

Science Journals Connector (OSTI)

...measurable photo-electric emission. Variation...of the photo-electric sensitivity to the mercury arc and to a hydrogen discharge. A hydrogen...RATIO HEATING HG ARC H DISCHARGE H/HG 0 80...in the photo-electric threshold to...

Lee A. DuBridge

1926-01-01T23:59:59.000Z

462

Blog Distillation via Sentiment-Sensitive Link Analysis  

E-Print Network (OSTI)

Blog Distillation via Sentiment-Sensitive Link Analysis Giacomo Berardi, Andrea Esuli, Fabrizio report a new approach to blog distillation, defined as the task in which, given a user query, the system of the TREC Blog Track. 1 Introduction Blog distillation is a subtask of the blog search task. It is defined

Sebastiani, Fabrizio

463

Blog Distillation via Sentiment-Sensitive Link Analysis  

E-Print Network (OSTI)

Blog Distillation via Sentiment-Sensitive Link Analysis Giacomo Berardi, Andrea Esuli, Fabrizio blog distillation by adding a link analysis phase to the standard retrieval-by-topicality phase, where in blog distillation. 1 Introduction Blog distillation is a subtask of blog search. It is defined

Sebastiani, Fabrizio

464

Sensitivity of aflatoxin b1 to ionizing radiation.  

Science Journals Connector (OSTI)

...activity with respective doses of 2.5, 5, 10...irradiation aflatoxin B1 dose of: in upper layediteionre...in foodstuffs may range from levels of 0...with an irradiation dose of10 kGy (the maximum...its sensitivity to ionizing radiation. When aflatoxin...

P J Van Dyck; P Tobback; M Feyes; H van de Voorde

1982-06-01T23:59:59.000Z

465

RISK SENSITIVE CONTROL AND AN OPTIMAL INVESTMENT MODEL (II)  

E-Print Network (OSTI)

RISK SENSITIVE CONTROL AND AN OPTIMAL INVESTMENT MODEL (II) W. H. Fleming1 and S. J. Sheu2 Brown University and Academia Sinica Abstract. We consider an optimal investment problem proposed by Bielecki and Pliska. The goal of the investment problem is to optimize the long term growth of expected utility

Sheu, Shuenn-Jyi

466

Automated questionnaire for sensitive positions, SF-86 (QSP system)  

SciTech Connect

In 1988, the office of Personnel Management drastically revised the investigative form used as a source document in conducting background investigations. To manually produce the revised form, the Questionnaire for Sensitive Positions, the Westinghouse Hanford Company/Boeing Computer Services, Richland, Inc., would have required an estimated increased staff effort of 32%. One alternative was to create a computer-aided system, the Automated Questionnaire for Sensitive Positions. Through development and implementation of the system, the need for additional staffing has been eliminated, the predetermined reinvestigation submission quotas have been maintained, and the Office of Personnel Management rejection rate has been reduced to less than 1%. There are currently 20 known facilities successfully using the US Department of Energy and Office of Personnel Management approved Automated Questionnaire for Sensitive Positions. By storing a facsimile of the Questionnaire for Sensitive Positions form in the laser printer's memory, using electronic forms-generation software, an applicant or employee data file is merged with this electronic form image and printed together as one form. The applicant or employee data can be retained indefinitely with minimal file updates for the five-year reinvestigation or other investigations, as needed.

Fisher, M.J.; Deatherage, K.W. (Westinghouse Hanford Co., Richland, WA (United States) Boeing Computer Services Co., Richland, WA (United States))

1991-07-01T23:59:59.000Z

467

Output-Sensitive Algorithms for Tukey Depth and Related Problems  

E-Print Network (OSTI)

Output-Sensitive Algorithms for Tukey Depth and Related Problems David Bremner University of New de Bruxelles Pat Morin Carleton University Abstract The Tukey depth (Tukey 1975) of a point p halfspace that contains p. Algorithms for computing the Tukey depth of a point in various dimensions

Morin, Pat

468

Broadband dye-sensitized upconversion of near-infrared light  

E-Print Network (OSTI)

of the fundamental factors limiting the energy conversion efficiency of a single-junction solar cell to the Shockley by the dye-sensitized nanoparticles is dramatically enhanced (by a factor of 3,300) as a result of increased­ Queisser limit of 32% is the inability to absorb photons with energy less than the bandgap of the active

469

Risk-sensitive optimal harvesting and control of biological populations  

Science Journals Connector (OSTI)

......catch. The cost function is assumed to take the form c(t) = c2u(t) - Y(t) + ic4[u(t) - u(t - I)]2 , (4.3...RISK-SENSITIVE OPTIMAL HARVESTING 49 and where c(t) = c2u(t) - (4-5) / ( ) = + M, -exp(-M,-u<7......

J. W. HORWOOD

1996-03-01T23:59:59.000Z

470

REVIEW Open Access Environment-sensitive behavior of fluorescent  

E-Print Network (OSTI)

REVIEW Open Access Environment-sensitive behavior of fluorescent molecular rotors Mark A Haidekker1 and the molecular-scale interaction of a molecular rotor with its environment are not fully understood. This review rotors as microviscosity sensors are reviewed, and engineering aspects are presented on how measurement

Theodorakis, Emmanuel

471

Sensitivity of OFDM Systems to Synchronization Errors and Spatial Diversity  

E-Print Network (OSTI)

Single Input Single Output SNR Signal-to-Noise Ratio STBC Space-Time Block Codes STTC Space-Time Trellis Codes SVD Singular Value Decomposition UWB Ultra Wideband WSSUS Wide Sense Stationary Uncorrelated Scattering ZP Zero Padding ix TABLE... . . . . . . . . . . . . . . . . . . . . . . . . 13 A. Sensitivity of Multi-Band ZP-OFDM Ultra Wideband Receivers to Synchronization Errors . . . . . . . . . . . . . 13 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . 13 2. System Model . . . . . . . . . . . . . . . . . . . . . . 16...

Zhou, Yi

2012-02-14T23:59:59.000Z

472

COPPER SENSITIVITY OF PACIFIC HERRING, CLUPEA HARENGUS PALLASI,  

E-Print Network (OSTI)

COPPER SENSITIVITY OF PACIFIC HERRING, CLUPEA HARENGUS PALLASI, DURING ITS EARLY LIFE HISTORY D. W pallasi, were exposed to copper, using a flow-through bioassay system. Herring embryos were exposed until yolk sac absorption. Embryos were also exposed to 36-h duration pulses of copper in order

473

WHITE PAPER Sensitivity of salmon survival to temperature in the  

E-Print Network (OSTI)

WHITE PAPER 1 Sensitivity of salmon survival to temperature in the mainstem Snake and Columbia. CRiSP data requirements Survival is a function of temperature in CRiSP1.7 as developed by Anderson is strongly correlated with river temperature (Anderson 2003, Connor et al. 2003, Smith et al. 2003). Because

Washington at Seattle, University of

474

Suitability, Position Sensitivity Designations, and Related Personnel Matters  

Directives, Delegations, and Requirements

The order identifies the interrelationships among suitability, security and access authorizations; to establish guidance and policy regarding position sensitivity designations, certain background investigations, and suitability determinations; and to establish the policies and procedures regarding waivers of pre-employment investigations. Chg 1, dated 7-8-92.

1989-12-19T23:59:59.000Z

475

ENVIRONMENTAL MODELING: 1 APPLICATIONS: MONTE CARLO SENSITIVITY SIMULATIONS  

E-Print Network (OSTI)

SIMULATIONS TO THE PROBLEM OF AIR POLLUTION TRANSPORT 3 1.1 The Danish Eulerian Model #12;Chapter 1 APPLICATIONS: MONTE CARLO SENSITIVITY SIMULATIONS TO THE PROBLEM OF AIR POLLUTION of pollutants in a real-live scenario of air-pollution transport over Europe. First, the developed technique

Dimov, Ivan

476

UNCORRECTED Sensitivity to the locomotor-stimulant effects of  

E-Print Network (OSTI)

UNCORRECTED PROOF Sensitivity to the locomotor-stimulant effects of ethanol and allopregnanolone- stimulant effects of ethanol and allopregnanolone. We conducted two quantitative trait locus (QTL) studies to identify chromosomal regions that harbor genes that influence locomotor response to ethanol (2 g

Gilad, Yoav

477

Aerogel tempelated ZnO dye-sensitized solar cells.  

SciTech Connect

Atomic layer deposition is employed to conformally coat low density, high surface area aerogel films with ZnO. The ZnO/aerogel membranes are incorporated as photoanodes in dye-sensitized solar cells, which exhibit excellent power efficiencies of up to 2.4% under 100 mW cm{sup -2} light intensity.

Hamann, T. W.; Martinson , A. B. E.; Elam, J. W.; Pellin, M. J.; Hupp, J. T.; Materials Science Division; Northwestern Univ.

2008-01-01T23:59:59.000Z

478

3-D description of fracture surfaces and stress-sensitivity analysis for naturally fractured reservoirs  

SciTech Connect

Three kinds of reservoir cores (limestone, sandstone, and shale with natural fractures) were used to study the effect of morphology of fracture surfaces on stress sensitivity. The cores, obtained from the reservoirs with depths of 2170 to 2300 m, have fractures which are mated on a large scale, but unmated on a fine scale. A specially designed photoelectric scanner with a computer was used to describe the topography of the fracture surfaces. Then, theoretical analysis of the fracture closure was carried out based on the fracture topography generated. The scanning results show that the asperity has almost normal distributions for all three types of samples. For the tested samples, the fracture closure predicted by the elastic-contact theory is different from the laboratory measurements because plastic deformation of the aspirates plays an important role under the testing range of normal stresses. In this work, the traditionally used elastic-contact theory has been modified to better predict the stress sensitivity of reservoir fractures. Analysis shows that the standard deviation of the probability density function of asperity distribution has a great effect on the fracture closure rate.

Zhang, S.Q.; Jioa, D.; Meng, Y.F.; Fan, Y.

1997-08-01T23:59:59.000Z

479

Sensitive and selective detection of hydrocarbon/water vapor mixtures with a nanoporous silicon microcantilever  

Science Journals Connector (OSTI)

Abstract We have developed a sensitive and selective sensor for hydrocarbon/water vapor mixtures using nanomechanical infrared (IR) spectroscopy with a porous silicon (P-Si) microcantilever. Facile and direct anodization process is utilized to fabricate vertically aligned nanopores of 20–50 nm diameters on a plain silicon microcantilever. The effective Young's modulus and surface area of a P-Si microcantilever can be easily controlled by the thickness of the anodized P-Si layer. Here we demonstrate the detection of 1 wt% naphtha/water vapor mixtures using nanoporous cantilever IR spectroscopy. Nanoporous nature of the cantilever surface enhances its thermomechanical sensitivity. In addition, trapping the volatile hydrocarbon molecules in the nanowells increases the analyte concentration on the surface. Nanomechanical IR spectra of adsorbed vapors were obtained by plotting the deflection amplitudes of the microcantilever as a function of the illuminating IR wavenumber. The mass of the adsorbed vapors was determined from variations in the resonance frequency of the cantilever.

Dongkyu Lee; Omid Zandieh; Seonghwan Kim; Sangmin Jeon; Thomas Thundat

2015-01-01T23:59:59.000Z

480

Improving liquid chromatography-mass spectrometry sensitivity using a subambient pressure ionization with nanoelectrospray (SPIN) interface  

SciTech Connect

In this work the Subambient Pressure Ionization with Nanoelectrospray (SPIN) ion source and interface which operates at ~15-30 Torr is demonstrated to be compatible with gradient reversed-phase liquid chromatography-MS applications, exemplified here with the analysis of complex samples (a protein tryptic digest and a whole cell lysate). A low liquid chromatographic flow rate (100-400 nL/min) allowed stable electrospray to be established while avoiding electrical breakdown. Efforts to increase the operating pressure of the SPIN source relative to previously reported designs prevented solvent freezing and enhanced charged cluster/droplet desolvation. A 5-12-fold improvement in sensitivity relative to a conventional atmospheric pressure nanoelectrospray ionization (ESI) source was obtained for detected peptides.

Tang, Keqi; Page, Jason S.; Marginean, Ioan; Kelly, Ryan T.; Smith, Richard D.

2011-04-22T23:59:59.000Z

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.


481

Band structures and charge densities of KCl, NaF, and LiF obtained by the intersecting-spheres model  

Science Journals Connector (OSTI)

The self-consistent electronic structures of KCl, NaF, and LiF have been calculated by the intersecting-spheres model and the results were compared with band structures calculated by other methods using the approximation of the exchange potential adopted by us. While for KCl close agreement was found between the augmented-plane-wave non-muffin-tin results by De Cicco and the intersecting-spheres-model (ISM) band structure, in the case of LiF differences of even 2.5 eV were found between conduction bands calculated by the ISM and the corresponding levels determined by linear-combination-of-atomic-orbitals (LCAO) methods. This disagreement seems to be imputable to a lack of convergence occurring in the LCAO calculations. The Fourier components of the charge densities (scattering factors) were determined using the Kohn-Sham-Gáspár form of the exchange potential. The agreement of the calculated scattering factors with experiment is not much worse than that obtained by Hartree-Fock calculations.

S. Antoci and L. Mihich

1980-01-15T23:59:59.000Z

482

Urban Energy Balance Obtained from the Comprehensive Outdoor Scale Model Experiment. Part I: Basic Features of the Surface Energy Balance  

Science Journals Connector (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

483

Effective potentials between gold nano crystals -- functional dependence on the temperature  

E-Print Network (OSTI)

A method is presented that allows to combine the effective potential between two nano crystals, the potential of mean force (PMF), as obtained from all-atomistic Molecular Dynamics simulations with perturbation theory. In this way, a functional dependence of the PMF on temperature is derived, that enables the prediction of the PMF in a wide temperature range. We applied the method for systems of capped gold nano crystals of different size. They show very good agreement with data from atomistic simulations.

G. Bauer; A. Lange; N. Gribova; C. Holm; J. Groß

2014-03-24T23:59:59.000Z

484

Effects of aflatoxin production in peanuts on the nutritional and functional properties of products obtained by various processing methods  

E-Print Network (OSTI)

of flours and protein isolates from wholesome and aflatoxin contaminated peanuts 38 10. Hunter color values for wholesome and aflatoxin contaminated peanut flours and peanut protein isolates. 39 11. Lovibond color tintometer ratio for crude oil obtained... . from prepress solvent extraction and aqueous p~ocessing of wholesome and aflatoxin contaminated peanuts . . 44 12. Some physical and chemical properties of crude oil obtained from prepress solvent extraction and aqueous processing of wholesome...

Ifeacho, Carole Ihuoma

1978-01-01T23:59:59.000Z

485

The effect of different annealing temperatures on tin and cadmium telluride phases obtained by a modified chemical route  

SciTech Connect

Graphical abstract: Display Omitted Highlights: ? Synthesis of cadmium and tin telluride. ? Chemical route to obtain pure crystalline cadmium and tin telluride. ? Effect of the annealing temperature on the crystalline phases. ? Removal of tin oxide as side product through thermal treatment. -- Abstract: In this work tin and cadmium telluride were prepared by a modification of a chemical route reported in the literature to obtain metallacycles formed by oxidative addition of tin-tellurium bonds to platinum (II). Through this procedure it was possible to obtain tin and cadmium telluride. X-ray diffraction and X-ray photoelectron spectroscopy were used to identify the crystalline phases obtained as well as the presence of side products. In the case of tin telluride it was identified potassium chloride, metallic tellurium and tin oxide as contaminants. The tin oxidation states were also monitored by {sup 119}Sn Mössbauer spectroscopy. The annealing in hydrogen atmosphere was chosen as a strategy to reduce the tin oxide and promote its reaction with the excess of tellurium present in the medium. The evolution of this tin oxide phase was studied through the annealing of the sample at different temperatures. Cadmium telluride was obtained with high degree of purity (98.5% relative weight fraction) according to the Rietveld refinement of X-ray diffraction data. The modified procedure showed to be very effective to obtain amorphous tin and cadmium telluride and the annealing at 450 °C has proven to be useful to reduce the amount of oxide produced as side product.

Mesquita, Anderson Fuzer [Departamento de Química, CCE, Universidade Federal do Espírito Santo, Campus Goiabeiras, 29075-910 Vitória, Espírito Santo (Brazil)] [Departamento de Química, CCE, Universidade Federal do Espírito Santo, Campus Goiabeiras, 29075-910 Vitória, Espírito Santo (Brazil); Porto, Arilza de Oliveira, E-mail: arilzaporto@yahoo.com.br [Departamento de Química, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil); Magela de Lima, Geraldo [Departamento de Química, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil)] [Departamento de Química, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil); Paniago, Roberto [Departamento de Física, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil)] [Departamento de Física, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil); Ardisson, José Domingos [Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Belo Horizonte, Minas Gerais (Brazil)] [Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Belo Horizonte, Minas Gerais (Brazil)

2012-11-15T23:59:59.000Z

486

?-function-shaped Sb-doping profiles in Si(001) obtained using a low-energy accelerated-ion source during molecular-beam epitaxy  

Science Journals Connector (OSTI)

Two-dimensional (2D) buried ?-function-shaped Sb-doping profiles have been obtained in Si using a low-energy accelerated Sb-ion source during molecular-beam epitaxy. A combination of secondary-ion mass spectrometry (SIMS), capacitance-voltage (C-V) measurements, and cross-sectional transmission electron microscopy (XTEM) was used to investigate dopant distributions and to determine profile widths. The 2D-sheet Sb-doping concentration NSb, obtained by integrating SIMS ?-doping profiles in samples grown with substrate temperature Ts=620 °C and Sb-ion acceleration potentials VSb=200 and 300 V, was found to vary linearly with the product of the Sb-ion flux and the exposure time (i.e., the ion dose) over the NSb range from 5×1012 to 2×1014 cm-2. The full width at half maximum (FWHM) concentration of ?-doping profiles in Si(001) films was less than the depth resolution of both SIMS and C-V measurements (?10 and 3 nm, respectively). High-resolution XTEM lattice images show that the FWHM was ?2 nm. This is consistent with dopant incorporation simulations, based upon a multisite transition-state dopant incorporation model, which show that accelerated-beam dopant species are trapped in near-surface substitutional sites with atomic mobilities between those of surface and bulk atoms. Dopant surface segregation during growth is strongly suppressed, and the dopant distribution is determined primarily by the straggle in ion trapping distributions. The present results are compared with profile broadening observed in ?-doped layers obtained by solid-phase epitaxy of amorphous Si containing a buried Sb layer.

W.-X. Ni; G. V. Hansson; J.-E. Sundgren; L. Hultman; L. R. Wallenberg; J.-Y. Yao; L. C. Markert; J. E. Greene

1992-09-15T23:59:59.000Z

487

A review on pyrolysis of biomass constituents: Mechanisms and composition of the products obtained from the conversion of cellulose, hemicelluloses and lignin  

Science Journals Connector (OSTI)

Abstract The conversion of biomass by thermochemical means is very promising for the substitution of fossil materials in many energy applications. Given the complexity of biomass the main challenge in its use is to obtain products with high yield and purity. For a better understanding of biomass thermochemical conversion, many authors have studied in TG analyzer or at bed scale the individual pyrolysis of its main constituents (i.e. cellulose, hemicelluloses and lignin). Based on these studies, this original work synthesizes the main steps of conversion and the composition of the products obtained from each constituent. Pyrolysis conversion can be described as the superposition of three main pathways (char formation, depolymerization and fragmentation) and secondary reactions. Lignin, which is composed of many benzene rings, gives the highest char yield and its depolymerization leads to various phenols. The depolymerization of the polysaccharides is a source of anhydro-saccharides and furan compounds. The fragmentation of the different constituents and the secondary reactions produce CO, CO2 and small chain compounds. For temperature higher than 500 °C, the residues obtained from the different constituents present a similar structure, which evolves towards a more condensed polyaromatic form by releasing CH4, CO and H2. As the aromatic rings and their substituent composition have a critical influence on the reactivity of pyrolysis products, a particular attention has been given to their formation. Some mechanisms are proposed to explain the formation of the main products. From the results of this study it is possible to predict the reactivity and energy content of the pyrolysis products and evaluate their potential use as biofuels in renewable applications.

François-Xavier Collard; Joël Blin

2014-01-01T23:59:59.000Z

488

Global sensitivity analysis in the development of first principle-based eutrophication models  

Science Journals Connector (OSTI)

In this work, we formulate a dynamic first principle-based eutrophication model for a reservoir and perform global sensitivity analysis to determine most influential parameters. Both first-order and total sensitivity indices profiles have been calculated ... Keywords: Eutrophication, First principle-based water quality model, Global sensitivity analysis, Sensitivity indices

V. Estrada; M. S. Diaz

2010-12-01T23:59:59.000Z

489

Hybrid Cost-sensitive Decision Tree Shengli Sheng, Charles X. Ling  

E-Print Network (OSTI)

Hybrid Cost-sensitive Decision Tree Shengli Sheng, Charles X. Ling Department of Computer Science, The University of Western Ontario London, Ontario N6A 5B7, Canada {cling, ssheng}@ csd.uwo.ca Abstract. Cost-sensitive decision tree and cost-sensitive naïve Bayes are both new cost-sensitive learning models proposed recently

Ling, Charles X.

490

AN EXTENDED NICHOLS CHART WITH CONSTANT MAGNITUDE LOCI OF SENSITIVITY AND  

E-Print Network (OSTI)

AN EXTENDED NICHOLS CHART WITH CONSTANT MAGNITUDE LOCI OF SENSITIVITY AND COMPLEMENTARY SENSITIVITY chart) and constant magnitude loci MS of |S(j)|. While the for- mer are part of standard methodologies the complementary sensitivity and sensitivity functions. In order to handle such resonance peak specifications

Regruto, Diego

491

Time-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks withDuty-Cycle Wireless Sensor Networks withDuty-Cycle Wireles  

E-Print Network (OSTI)

Time-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks with TEMPLE UNIVERSITY #12;Introduction: utility-based routingIntroduction: utility-based routing

Wu, Jie

492

NREL: Publications - Obtain Publications  

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

303-275-4363 (phone), or 303-275-4053 (fax). U.S. Department of Energy Information Bridge Search for NREL andor other U.S. Department of Energy publications, as well as...

493

Obtaining Disaster Assistance  

E-Print Network (OSTI)

? call TTY: 1-800-462-7585). You also may apply online at www.fema.gov (by clicking on ?Online Individual As- sistance Center?). FEMA does not accept applications through the mail; nor can they be completed at Disaster Recovery Centers (unless a Center...). If FEMA determines you are not eligible for assistance, you will receive a letter explaining why you were denied and how to appeal. Appeals must be made in writing and mailed within 60 days of FEMA?s decision. If you have insurance, you should contact...

Cavanagh, Joyce

2008-09-24T23:59:59.000Z

494

Obtaining Disaster Assistance (Spanish)  

E-Print Network (OSTI)

propietarios podr?n solicitar Pr?stamos para Bienes Inmuebles de hasta $200,000 para reparar o restituir una residencia principal al estado en el que se encontraba con anterioridad al desastre. El producido de la cobertura del seguro de su propiedad se...

Cavanagh, Joyce

2008-09-24T23:59:59.000Z

495

Sensitivity of Surface Flux Simulations to Hydrologic Parameters Based on an Uncertainty Quantification Framework Applied to the Community Land Model  

SciTech Connect

Uncertainties in hydrologic parameters could have significant impacts on the simulated water and energy fluxes and land surface states, which will in turn affect atmospheric processes and the carbon cycle. Quantifying such uncertainties is an important step toward better understanding and quantification of uncertainty of integrated earth system models. In this paper, we introduce an uncertainty quantification (UQ) framework to analyze sensitivity of simulated surface fluxes to selected hydrologic parameters in the Community Land Model (CLM4) through forward modeling. Thirteen flux tower footprints spanning a wide range of climate and site conditions were selected to perform sensitivity analyses by perturbing the parameters identified. In the UQ framework, prior information about the parameters was used to quantify the input uncertainty using the Minimum-Relative-Entropy approach. The quasi-Monte Carlo approach was applied to generate samples of parameters on the basis of the prior pdfs. Simulations corresponding to sampled parameter sets were used to generate response curves and response surfaces and statistical tests were used to rank the significance of the parameters for output responses including latent (LH) and sensible heat (SH) fluxes. Overall, the CLM4 simulated LH and SH show the largest sensitivity to subsurface runoff generation parameters. However, study sites with deep root vegetation are also affected by surface runoff parameters, while sites with shallow root zones are also sensitive to the vadose zone soil water parameters. Generally, sites with finer soil texture and shallower rooting systems tend to have larger sensitivity of outputs to the parameters. Our results suggest the necessity of and possible ways for parameter inversion/calibration using available measurements of latent/sensible heat fluxes to obtain the optimal parameter set for CLM4. This study also provided guidance on reduction of parameter set dimensionality and parameter calibration framework design for CLM4 and other land surface models under different hydrologic and climatic regimes.

Hou, Zhangshuan; Huang, Maoyi; Leung, Lai-Yung R.; Lin, Guang; Ricciuto, Daniel M.

2012-08-10T23:59:59.000Z

496

Highly Sensitive and Selective Immuno-capture/Electrochemical Assay of Acetylcholinesterase Activity in Red Blood Cells: A Biomarker of Exposure to Organophosphorus Pesticides and Nerve Agents  

SciTech Connect

Acetylcholinesterase (AChE) enzyme activity in red blood cells (RBCs) is a useful biomarker for biomonitoring of exposures to organophosphorus (OP) pesticides and chemical nerve agents. In this paper, we reported a new method for AChE activity assay based on selective immuno-capture of AChE from biological samples followed by enzyme activity assay of captured AChE using a disposable electrochemical sensor. The electrochemical sensor is based on multiwalled carbon nanotubes-gold nanocomposites (MWCNTs-Au) modified screen printed carbon electrode (SPCE). Upon the completion of immunoreaction, the target AChE (including active and inhibited) is captured onto the electrode surface and followed by an electrochemical detection of enzymatic activity in the presence of acetylthiocholine. A linear response is obtained over standard AChE concentration range from 0.1 to 10 nM. To demonstrate the capability of this new biomonitoring method, AChE solutions dosed with different concentration of paraoxon were used to validate the new AChE assay method. AChE inhibition in OP dosed solutions was proportional to its concentration from 0.2 to 50 nM. The new AChE activity assay method for biomonitoring of OP exposure was further validated with in-vitro paraoxon-dosed RBC samples. The established electrochemical sensing platform for AChE activity assay not only avoids the problem of overlapping substrate specificity with esterases by using selective antibody, but also eliminates potential interference from other electroactive species in biological samples. It offers a new approach for sensitive, selective, and rapid AChE activity assay for biomonitoring of exposures to OPs.

Chen, Aiqiong; Du, Dan; Lin, Yuehe

2012-02-09T23:59:59.000Z

497

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

498

Radiation sensitive devices and systems for detection of radioactive materials and related methods  

DOE Patents (OSTI)

Radiation sensitive devices include a substrate comprising a radiation sensitive material and a plurality of resonance elements coupled to the substrate. Each resonance element is configured to resonate responsive to non-ionizing incident radiation. Systems for detecting radiation from a special nuclear material include a radiation sensitive device and a sensor located remotely from the radiation sensitive device and configured to measure an output signal from the radiation sensitive device. In such systems, the radiation sensitive device includes a radiation sensitive material and a plurality of resonance elements positioned on the radiation sensitive material. Methods for detecting a presence of a special nuclear material include positioning a radiation sensitive device in a location where special nuclear materials are to be detected and remotely interrogating the radiation sensitive device with a sensor.

Kotter, Dale K

2014-12-02T23:59:59.000Z

499

Bohm's Quantum Potential as an Internal Energy  

E-Print Network (OSTI)

We pursue our discussion of Fermi's surface initiated in Dennis, de Gosson and Hiley and show that Bohm's quantum potential can be viewed as an internal energy of a quantum system. This gives further insight into the role it played by the quantum potential in stationary states. It also allows us to provide a physically motivated derivation of Schr\\"odinger's equation for a particle in an external potential.

Glen Dennis; Maurice de Gosson; Basil Hiley

2014-12-15T23:59:59.000Z