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1

Identification of External Hazards for Analysis in Probabilistic Risk Assessment  

Science Conference Proceedings (OSTI)

This document reports on the assessment of current practices related to the identification of external events (hazards) that can potentially affect the safety of nuclear power plants and provides recommendations on the screening criteria used to perform this identification process. The identification process is intended for use by individual plants, and the identified external events are appropriate candidates for evaluation using probabilistic risk assessment (PRA). One of the outcomes of an external ev...

2011-12-07T23:59:59.000Z

2

Politics, externalities, and risk: the regulation of chemical carcinogens  

SciTech Connect

Starting from the premise that the risk to human health posed by the production of potentially carcinogenic chemical compounds constitutes an externality, this dissertation examines the various mechanisms available to the political system for controlling cancer risks. Both governmental regulation and market-oriented economic incentive structures are evaluated for their effectiveness in reducing cancer risks. For reasons enumerated in the text, it was found that market-oriented strategies by themselves do not constitute an advantage over government regulation. However, a combination of direct regulation and a system of effluent charges adjusted to include the cost of anticipated harm could provide the optimal strategy for reducing cancer risks as well as for providing a mechanism for the compensation of victims.

Brandys, M.W.

1983-01-01T23:59:59.000Z

3

RS- External Correspondence-RFETS  

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

JOB NUMBER JOB NUMBER R E Q U E S T F O R R E C O R D S D I S P O S I T I O N A U T H O R I T Y (See Instructions on reverse) TO NATIONAL ARCHIVES and RECORDS ADMINISTRATION (NIR) WASHINGTON, DC 20408 1 FROM (Agency or establ~shment) Department o f Energy 2 MAJOR SUBDIVISION Kaiser-Hill, RFETS 3 MINOR SUBDIVISION Records Management In accordance w ~ t h the provlslons of 44 U S C 3303a rne olsposlrlon request. I includ~ng amendments, 1 s approved except for items rnai may oe marked 'o~spos~non not approved" or 'wlthdrawn" In column 10 I 4 NAME OF PERSON WITH WHOM TO CONFER David Prochnow, Manager Contractor Records Management, R F E T S \ 1 I hereby certify that 1 am authorized to act for this agency in patters pertaining to the dlsposltlon of its records ard tha: the recolds proposed for disposal on the attached. paag(s) are not now needed for the busmess

4

Trial Plant Review of an American Nuclear Society External Event Probabilistic Risk Assessment Standard  

Science Conference Proceedings (OSTI)

This study examined a representative set of Seismic Probabilistic Risk Assessments (SPRAs) and Seismic Margin Assessments (SMAs) performed for U.S. nuclear plants and evaluated them against the American Nuclear Society's draft External-Event PRA Methodology Standard for conducting Probabilistic Risk Assessment of external events.

2003-09-22T23:59:59.000Z

5

External event Probabilistic Risk Assessment for the High Flux Isotope Reactor (HFIR)  

SciTech Connect

The High Flux Isotope Reactor (HFIR) is a high performance isotope production and research reactor which has been in operation at Oak Ridge National Laboratory (ORNL) since 1965. In late 1986 the reactor was shut down as a result of discovery of unexpected neutron embrittlement of the reactor vessel. In January of 1988 a level 1 Probabilistic Risk Assessment (PRA) (excluding external events) was published as part of the response to the many reviews that followed the shutdown and for use by ORNL to prioritize action items intended to upgrade the safety of the reactor. A conservative estimate of the core damage frequency initiated by internal events for HFIR was 3.11 {times} 10{sup {minus}4}. In June 1989 a draft external events initiated PRA was published. The dominant contributions from external events came from seismic, wind, and fires. The overall external event contribution to core damage frequency is about 50% of the internal event initiated contribution and is dominated by seismic events.

Flanagan, G.F.; Johnson, D.H.; Buttemer, D.; Perla, H.F.; Chien, S.H. (Oak Ridge National Lab., TN (USA))

1989-01-01T23:59:59.000Z

6

Review of the Oconee-3 probabilistic risk assessment: external events, core damage frequency. Volume 2  

SciTech Connect

A review of the Oconee-3 Probabilistic Risk Assessment (OPRA) was conducted with the broad objective of evaluating qualitatively and quantitatively (as much as possible) the OPRA assessment of the important sequences that are ''externally'' generated and lead to core damage. The review included a technical assessment of the assumptions and methods used in the OPRA within its stated objective and with the limited information available. Within this scope, BNL performed a detailed reevaluation of the accident sequences generated by internal floods and earthquakes and a less detailed review (in some cases a scoping review) for the accident sequences generated by fires, tornadoes, external floods, and aircraft impact. 12 refs., 24 figs., 31 tabs.

Hanan, N.A.; Ilberg, D.; Xue, D.; Youngblood, R.; Reed, J.W.; McCann, M.; Talwani, T.; Wreathall, J.; Kurth, P.D.; Bandyopadhyay, K.

1986-03-01T23:59:59.000Z

7

A Framework for the Treatment of External Events in Configuration Risk Management: 2004 Configuration of Risk Management Forum Resea rch Task  

Science Conference Proceedings (OSTI)

To comply with paragraph (a)(4) of the Maintenance Rule (10 CFR 50.65), U.S. nuclear plants consider the potential impacts of external events as part of the overall requirement to assess configuration-specific risk. This report, one result of efforts to develop practical, cost-effective tools to support this process, presents an overall framework for consideration of external events in configuration risk management (CRM).

2005-03-14T23:59:59.000Z

8

Thyroid cancer in the Marshallese: relative risk of short-lived internal emitters and external radiation exposure  

Science Conference Proceedings (OSTI)

In a study of the comparative effects of internal versus external irradiation of the thyroid in young people, we determined that the dose from internal irradiation of the thyroid with short-lived internal emitters produced several times less thyroid cancer than did the same dose of radiation given externally. We determined this finding for a group of 85 Marshall Islands children, who were less than 10 years of age at the time of exposure and who were accidentially exposed to internal and external thyroid radiation at an average level of 1400 rad. The external risk coefficient ranged between 2.5 and 4.9 cancers per million person-rad-years at risk, and thus, from our computations, the internal risk coefficient for the Marshallese children was estimated to range between 1.0 and 1.4 cancers per million person-rad-years at risk. In contrast, for individual more than 10 years of age at the time of exposure, the dose from internal irradiation of the thyroid with short-lived internal emitters produced several times more thyroid cancer than did the same dose of radiation given externally. The external risk coefficients for the older age groups were reported in the literature to be in the range of 1.0 to 3.3 cancers per million person-rad-years-at risk. We computed internal risk coefficients of 3.3 to 8.1 cancers per million person-rad-years at risk for adolescent and adult groups. This higher sensitivity to cancer induction in the exposed adolescents and adults, is different from that seen in other exposed groups. 14 refs., 8 tabs.

Lessard, E.T.; Brill, A.B.; Adams, W.H.

1985-01-01T23:59:59.000Z

9

N Reactor external events probabilistic risk assessment using NUREG-1150 methods  

Science Conference Proceedings (OSTI)

This is the first full-scope Level-III PRA completed for the DOE Category A reactor using the updated NUREG-1150 methods. The comparisons to the quantitative NRC safety objectives and DOE nuclear safety guidelines also set analytical precedent for DOE production reactors. Generally speaking, the risks of operating N Reactor are low because of a combination of factors such as low power density, large confinement volume, effective redundant scram systems and core cooling systems, remote location, etc. This work has been a major effort to evaluate the N Reactor risk using state-of-the-art PRA technology. It is believed that this PRA has resulted in realistic, or slightly conservative, results (as opposed to unduly conservative or nonconservative results). The study concluded that the risk to the public and to nearby DOE workers from the operation of N Reactor is very low. This analysis also found that N Reactor meets all the quantitative NRC safety objectives and DOE nuclear safety guidelines, and is generally as safe as, or safer than most commercial reactors in terms of societal and individual risks. The calculated risk to Hanford onsite workers is comparable to public risk from commercial reactors in the NUREG-1150 study. As a result of these low-risk estimates, only a small effort has been devoted to identifying significant risk reduction alternatives. 22 refs., 2 figs., 10 tabs.

Wang, O.S.; Baxter, J.T.; Coles, G.A.; Zentner, M.D.; Powers, T.B.; Collard, L.B.; Rainey, T.E.

1990-01-01T23:59:59.000Z

10

RS-232 Led Board  

E-Print Network (OSTI)

This article demonstrates how to develop a Microchip PIC16F84 based device that supports RS-232 interface with PC. Circuit (LED Board) design and software development will be discussed. PicBasic Pro Compiler from microEngineering Labs, Inc. is used for PIC programming. Development of LED Board Control Console using C/C++ is also briefly discussed. The project requires basic work experience with Microchip PICs, serial communication and programming.

Tskhvaradze, Vladimir

2007-01-01T23:59:59.000Z

11

Second cancer incidence risk estimates using BEIR VII models for standard and complex external beam radiotherapy for early breast cancer  

Science Conference Proceedings (OSTI)

Purpose: To compare organ specific cancer incidence risks for standard and complex external beam radiotherapy (including cone beam CT verification) following breast conservation surgery for early breast cancer.Method: Doses from breast radiotherapy and kilovoltage cone beam CT (CBCT) exposures were obtained from thermoluminescent dosimeter measurements in an anthropomorphic phantom in which the positions of radiosensitive organs were delineated. Five treatment deliveries were investigated: (i) conventional tangential field whole breast radiotherapy (WBRT), (ii) noncoplanar conformal delivery applicable to accelerated partial beast irradiation (APBI), (iii) two-volume simultaneous integrated boost (SIB) treatment, (iv) forward planned three-volume SIB, and (v) inverse-planned three volume SIB. Conformal and intensity modulated radiotherapy methods were used to plan the complex treatments. Techniques spanned the range from simple methods appropriate for patient cohorts with a low cancer recurrence risk to complex plans relevant to cohorts with high recurrence risk. Delineated organs at risk included brain, salivary glands, thyroid, contralateral breast, left and right lung, esophagus, stomach, liver, colon, and bladder. Biological Effects of Ionizing Radiation (BEIR) VII cancer incidence models were applied to the measured mean organ doses to determine lifetime attributable risk (LAR) for ages at exposure from 35 to 80 yr according to radiotherapy techniques, and included dose from the CBCT imaging. Results: All LAR decreased with age at exposure and were lowest for brain, thyroid, liver, and bladder (cancer incidence for organs distant from the treated breast, or the contralateral breast where appropriate plan constraints are applied. Complex SIB treatments are predicted to increase the risk of second cancer incidence in the lungs compared to standard whole breast radiotherapy; this is outweighed by the threefold reduction in 5 yr local recurrence risk for patients of high risk of recurrence, and young age, from the use of radiotherapy. APBI may have a favorable impact on risk of second cancer in the contralateral breast and lung for older patients at low risk of recurrence. Intensive use of IGRTincreased the estimated values of LAR but these are dominated by the effect of the dose from the radiotherapy, and any increase in LAR from IGRT is much lower than the models' uncertainties.

Donovan, E. M.; James, H.; Bonora, M.; Yarnold, J. R.; Evans, P. M. [Joint Department of Physics, Royal Marsden NHS Foundation Trust and Institute of Cancer Research, Sutton SM2 5PT (United Kingdom); Physics Department, Ipswich Hospital NHS Foundation Trust, Ipswich IP4 5PD (United Kingdom); Department of Academic Radiotherapy, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton SM2 5PT, United Kingdom and School of Radiotherapy, University of Milan, Milan 20122 (Italy); Department of Academic Radiotherapy, Institute of Cancer Research and Royal Marsden NHS Foundation Trust, Sutton SM2 5PT (United Kingdom); Centre for Vision Speech and Signal Processing, University of Surrey, Guildford GU2 7XH (United Kingdom)

2012-10-15T23:59:59.000Z

12

Compendium of selected references on air emissions; health, risk, and valuation research; and environmental externalities  

Science Conference Proceedings (OSTI)

In preparing to develop a cost-benefit methodology that could be applied to potential projects abroad involving new coal-fired power plants that make use of US clean coal technologies, the author reviewed a wide variety of reference sources. These are listed in this publication. Before this review, the author had conducted a number of literature searches that identified source material in the newly rediscovered field of environmental externalities and related topics that might also be of value to other energy and environmental researchers. Those sources that appeared to be appropriate but that the author was unable to review are also listed in this document. Thus, this document serves as a comprehensive compendium of source material on these subjects, arranged alphabetically within categories.

Szpunar, C.B.

1992-07-01T23:59:59.000Z

13

An evaluation of the reliability and usefulness of external-initiator PRA (probabilistic risk analysis) methodologies  

SciTech Connect

The discipline of probabilistic risk analysis (PRA) has become so mature in recent years that it is now being used routinely to assist decision-making throughout the nuclear industry. This includes decision-making that affects design, construction, operation, maintenance, and regulation. Unfortunately, not all sub-areas within the larger discipline of PRA are equally mature,'' and therefore the many different types of engineering insights from PRA are not all equally reliable. 93 refs., 4 figs., 1 tab.

Budnitz, R.J.; Lambert, H.E. (Future Resources Associates, Inc., Berkeley, CA (USA))

1990-01-01T23:59:59.000Z

14

Blue LED for RS Monitor  

E-Print Network (OSTI)

Abstract We report on a design of RS gain monitor system based on blue LED. Gain of each RS PMT is monitored by a LED, which is mounted in front of the PMT window in its _-metal shield. The blue LED well simulates scintillation light with its short pulse and wavelength. The LED is as small as 3 mmOE. The light yield is stable and has small temperature dependence. These are nice properties to install in present RS system with small modification and to operate without air conditioning. In this note we will present outline of our design and test results which demonstrate its desirable properties. 1 Introduction RS gain monitor has been carried out with K_2 events at E787. They are sat- isfactory to monitor long and medium term stability but it is not satisfactory to monitor short term stability and to check PMT and related electronics quickly and frequently. These capabilities are important to reduce setup time and loss time in long E949 run. For these purpose triggerable and stable light source is required at RS system. We consider two types of monitoring system. One is the system which consists of one light source and its light distribution network, such as a Xe lamp with a optical fiber network. It has the advantage that light intensity of the source itself can be monitored and be corrected. But, practically, it is not easy to estimate light output of individual fiber correctly by checking light source and to handle optical fibers, and we have to think out a solution how we introduce lights to RS or its PMT. Also the system is rather expensive and it will take long time to

unknown authors

2000-01-01T23:59:59.000Z

15

ARM - External Data Center  

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

govExternal Data Center External Data Center Order Data Description of External Data Streams Data Viewers and Plots (selected data sets) XDC Documentation External Data Center The...

16

Pressure and Temperature Differences between Vaisala RS80 and RS92 Radiosonde Systems  

Science Conference Proceedings (OSTI)

In several twin flight campaigns, Vaisala RS80 radiosonde systems report lower temperatures than Vaisala RS92 systems in the daytime. Simultaneous differences increase from less than 0.1 K at pressure altitudes below 100 hPa to 0.7 K at 10 hPa. ...

Wolfgang Steinbrecht; Hans Claude; Fritz Schönenborn; Ulrich Leiterer; Horst Dier; Eckhard Lanzinger

2008-06-01T23:59:59.000Z

17

20 Gy Versus 44 Gy of Supplemental External Beam Radiotherapy With Palladium-103 for Patients With Greater Risk Disease: Results of a Prospective Randomized Trial  

SciTech Connect

Purpose: The necessity of external beam radiotherapy (EBRT) as a supplement to prostate brachytherapy remains unknown. We report brachytherapy outcomes for patients with higher risk features randomized to substantially different supplemental EBRT regimens. Methods and Materials: Between December 1999 and June 2004, 247 patients were randomized to 20 Gy vs. 44 Gy EBRT followed by a palladium-103 boost (115 Gy vs. 90 Gy). The eligibility criteria included clinically organ-confined disease with Gleason score 7-10 and/or pretreatment prostate-specific antigen (PSA) level 10-20 ng/mL. The median follow-up period was 9.0 years. Biochemical progression-free survival (bPFS) was defined as a PSA level of {<=}0.40 ng/mL after nadir. The median day 0 prescribed dose covering 90% of the target volume was 125.7%; 80 men received androgen deprivation therapy (median, 4 months). Multiple parameters were evaluated for their effect on bPFS. Results: For the entire cohort, the cause-specific survival, bPFS, and overall survival rates were 97.7%, 93.2%, and 80.8% at 8 years and 96.9%, 93.2%, and 75.4% at 10 years, respectively. The bPFS rate was 93.1% and 93.4% for the 20-Gy and 44-Gy arms, respectively (p = .994). However, no statistically significant differences were found in cause-specific survival or overall survival were identified. When stratified by PSA level of {<=}10 ng/mL vs. >10 ng/mL, Gleason score, or androgen deprivation therapy, no statistically significant differences in bPFS were discerned between the two EBRT regimens. On multivariate analysis, bPFS was most closely related to the preimplant PSA and clinical stage. For patients with biochemically controlled disease, the median PSA level was <0.02 ng/mL. Conclusion: The results of the present trial strongly suggest that two markedly different supplemental EBRT regimens result in equivalent cause-specific survival, bPFS, and overall survival. It is probable that the lack of benefit for a higher supplemental EBRT dose is the result of the high-quality brachytherapy dose distributions.

Merrick, Gregory S., E-mail: gmerrick@urologicresearchinstitute.org [Schiffler Cancer Center/Wheeling Jesuit University, Wheeling, WV (United States); Wallner, Kent E. [Puget Sound Healthcare Corporation, University of Washington, Seattle, WA (United States); Butler, Wayne M.; Galbreath, Robert W. [Schiffler Cancer Center/Wheeling Jesuit University, Wheeling, WV (United States); Taira, Al V. [Western Radiation Oncology Inc, Mountain View, CA (United States); Orio, Peter [Department of Radiation Oncology, Dana Farber Cancer Institute/Brigham and Women's Hospital, Harvard Medical School, Boston, MA (United States); Adamovich, Edward [Department of Pathology, Wheeling Hospital, Wheeling, WV (United States)

2012-03-01T23:59:59.000Z

18

Radiation Dry Bias of the Vaisala RS92 Humidity Sensor  

Science Conference Proceedings (OSTI)

The comparison of simultaneous humidity measurements by the Vaisala RS92 radiosonde and by the Cryogenic Frostpoint Hygrometer (CFH) launched at Alajuela, Costa Rica, during July 2005 reveals a large solar radiation dry bias of the Vaisala RS92 ...

H. Vömel; H. Selkirk; L. Miloshevich; J. Valverde-Canossa; J. Valdés; E. Kyrö; R. Kivi; W. Stolz; G. Peng; J. A. Diaz

2007-06-01T23:59:59.000Z

19

RS India Wind Energy Pvt Ltd | Open Energy Information  

Open Energy Info (EERE)

RS India Wind Energy Pvt Ltd Jump to: navigation, search Name RS India Wind Energy Pvt Ltd Place New Delhi, Delhi (NCT), India Zip 110001 Sector Renewable Energy, Solar, Wind...

20

RS-NWPA [National Waste Policy Act] | Department of Energy  

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

Waste Policy Act Basalt Waste & Salt River projects RS-NWPA National Waste Policy Act More Documents & Publications OFFICE OF PROCUREMENT & ASSISTANCE MANAGEMENT...

Note: This page contains sample records for the topic "risk external rs" 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

External Dose Estimates from  

E-Print Network (OSTI)

Appendix G External Dose Estimates from Global Fallout G-1 #12;External Radiation Exposure from the fallout from all of these tests was about 0.7 mSv, about equivalent to 2-3 years of external radiation exposure from natural background. In contrast to the fallout from tests at the Nevada Test site

22

Control of External Documents  

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

2 Control of External Documents Process 11_0304 Page 1 of 5 2 Control of External Documents Process 11_0304 Page 1 of 5 EOTA - Business Process Document Title: Control of External Documents Process Document Number P-002 Rev 11_0304 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: EOTA Employees Referenced Document(s): REG-002, External Document Register P-002 Control of External Documents Process 11_0304 Page 2 of 5 Revision History: Rev. Description of Change A Initial Release 11_0304 Changed revision format from alpha character to numbers; modified process to include a step directing addition to REG-002 External Document Register and changed verbiage to clarify and more accurately reflect current process.

23

PETSc: External Software  

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

External Software External Software Home Download Features Documentation Applications/Publications Miscellaneous External Software Developers Site PETSc interfaces to the following optional external software (installing packages) (manual pages): ADIFOR - automatic differentiation for the computation of sparse Jacobians. AMD - Approximate minimum degree orderings. AnaMod - a library of matrix analysis modules; part of the Salsa project. BLAS and LAPACK Chaco - a graph partitioning package. ESSL - IBM's math library for fast sparse direct LU factorization. Euclid - parallel ILU(k) developed by David Hysom, accessed through the Hypre interface. FFTW - Fastest Fourier Transform in the West, developed at MIT by Matteo Frigo and Steven G. Johnson. Hypre - the LLNL preconditioner library.

24

External Dose Estimates from  

E-Print Network (OSTI)

Appendix E External Dose Estimates from NTS Fallout E-1 #12;External Radiation Exposure as the dependence on fallout time of arrival. The most exposed individuals were outdoor workers; the least exposed was about a factor of 20 less than that from "global fallout" from high- yield weapons tests carried out

25

External Technical Review Report  

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

External Technical Review Report External Technical Review Report March 2010 U U . . S S . . D D e e p p a a r r t t m m e e n n t t o o f f E E n n e e r r g g y y O O f f f f i i c c e e o o f f E E n n v v i i r r o o n n m m e e n n t t a a l l M M a a n n a a g g e e m m e e n n t t External Technical Review (ETR) Process Guide September 2008 U.S. DOE Office of Environmental Management September 2008 External Technical Review Process Guide Page 2 of 37 TABLE OF CONTENTS 1.0 INTRODUCTION ....................................................................................................................... 3 1.1 Purpose of Process ............................................................................................................ 3 1.2 Background .........................................................................................................................

26

EMSL: External Peer Reviewers  

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

EXTERNAL PEER REVIEWERS EXTERNAL PEER REVIEWERS Additional Information User Portal 2014 Call for Proposals 2014 Proposal Guidance 2014 Proposal Review Criteria Guidance for Letters of Intent to JGI-EMSL Collaborative Science Call Guidance for Full Proposals to JGI-EMSL Collaborative Science Call (Invited Only) 2014 Proposal Planning 2014 Proposal Summary/Extension Previous Calls External Peer Reviewers Fellowships and Awards Nufo, logo External peer reviewers are valuable contributors to EMSL's user proposals process. They provide objective evaluations of the quality of the proposals according to established review criteria, and participate on Review Panels that calibrate the proposals into a ranked order. EMSL is truly grateful to the researchers who donated their time and efforts in fiscal year 2012 to

27

External Technical Review Report  

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

This document has been developed to guide individuals and teams who will be involved in External Technical Reviews (ETR) of U.S. Department of Energy’s Office of Environmental Management (DOE-EM)...

28

External Science Review Report of the External Science  

E-Print Network (OSTI)

1 External Science Review Report of the External Science Review Committee The Nature Conservancy and Design: Lee Meinicke Jonathan Adams Design and Layout: Naomi Nickerson #12;3 External Science Review............................................................................................................................... 10 The Challenge of Changing Conservation and Changing Science

Power, Mary Eleanor

29

External vs. body temperature  

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

External vs. body temperature External vs. body temperature Name: jacqui Location: N/A Country: N/A Date: N/A Question: If one's internal body temperature is approximately 98.6, WHY when the external temperature is 98.6 do we feel hot? Since both temperatures are "balanced", shouldn't we feel comfortable? I am assuming here that humidity levels are controlled, and play no factor in the external temperature. Replies: First of all, skin temperature is lower than 98.6F; 98.6F is internal body temperature, so air at 98.6F is hotter than skin. But more important, it is the nervous system, and the cells in your skin that your brain uses to detect temperature that determine whether you "feel" hot or not, not whether the air is hotter than your skin. These are set so that you feel hot when the air is actually colder than your skin. Why? They are probably set to make you feel hot whenever the air is warm enough so that your body has some trouble getting rid of the excess heat it produces through metabolism. This insures that you take some actions to help your body cool off. Like drinking cool water, or reducing exercise

30

External Memory Algorithms  

Science Conference Proceedings (OSTI)

Data sets in large applications are often too massive to fit completely inside the computer's internal memory. The resulting input/ output communication (or I/O) between fast internal memory and slower external memory (such as disks) can be a major performance ...

Jeffrey Scott Vitter

1998-08-01T23:59:59.000Z

31

MaRS: a macro-pipelined reconfigurable system  

Science Conference Proceedings (OSTI)

We introduce MaRS, a reconfigurable, parallel computing engine with special emphasis on scalability, lending itself to the computation-/data-intensive multimedia data processing and wireless communication. Global communication between the processing ... Keywords: 2D-mesh network, MIMD, computer graphics, multimedia, reconfigurable architectures, wireless communication

Nozar Tabrizi; Nader Bagherzadeh; Amir H. Kamalizad; Haitao Du

2004-04-01T23:59:59.000Z

32

External split field generator  

DOE Patents (OSTI)

A generator includes a coil disposed about a core. A first stationary magnetic field source may be disposed on a first end portion of the core and a second stationary magnetic field source may be disposed on a second end portion of core. The first and second stationary magnetic field sources apply a stationary magnetic field to the coil. An external magnetic field source may be disposed outside the coil to apply a moving magnetic field to the coil. Electrical energy is generated in response to an interaction between the coil, the moving magnetic field, and the stationary magnetic field.

Thundat, Thomas George (Knoxville, TN); Van Neste, Charles W. (Kingston, TN); Vass, Arpad Alexander (Oak Ridge, TN)

2012-02-21T23:59:59.000Z

33

Hanford External Dosimetry Program  

Science Conference Proceedings (OSTI)

This document describes the Hanford External Dosimetry Program as it is administered by Pacific Northwest Laboratory (PNL) in support of the US Department of Energy (DOE) and its Hanford contractors. Program services include administrating the Hanford personnel dosimeter processing program and ensuring that the related dosimeter data accurately reflect occupational dose received by Hanford personnel or visitors. Specific chapters of this report deal with the following subjects: personnel dosimetry organizations at Hanford and the associated DOE and contractor exposure guidelines; types, characteristics, and procurement of personnel dosimeters used at Hanford; personnel dosimeter identification, acceptance testing, accountability, and exchange; dosimeter processing and data recording practices; standard sources, calibration factors, and calibration processes (including algorithms) used for calibrating Hanford personnel dosimeters; system operating parameters required for assurance of dosimeter processing quality control; special dose evaluation methods applied for individuals under abnormal circumstances (i.e., lost results, etc.); and methods for evaluating personnel doses from nuclear accidents. 1 ref., 14 figs., 5 tabs.

Fix, J.J.

1990-10-01T23:59:59.000Z

34

Observational Constraints of Modified Chaplygin Gas in RS II Brane  

E-Print Network (OSTI)

FRW universe in RS II braneworld model filled with a combination of dark matter and dark energy in the form of modified Chaplygin gas (MCG) is considered. It is known that the equation of state (EoS) for MCG is a three-variable equation determined by $A$, $\\alpha$ and $B$. The permitted values of these parameters are determined by the recent astrophysical and cosmological observational data. Here we present the Hubble parameter in terms of the observable parameters $\\Omega_{m0}$, $\\Omega_{x0}$, $H_{0}$, redshift $z$ and other parameters like $A$, $B$, $C$ and $\\alpha$. From Stern data set (12 points), we have obtained the bounds of the arbitrary parameters by minimizing the $\\chi^{2}$ test. The best-fit values of the parameters are obtained by 66%, 90% and 99% confidence levels. Next due to joint analysis with BAO and CMB observations, we have also obtained the bounds of the parameters ($B,C$) by fixing some other parameters $\\alpha$ and $A$. The best fit value of distance modulus $\\mu(z)$ is obtained for the MCG model in RS II brane, and it is concluded that our model is perfectly consistent with the union2 sample data.

Chayan Ranjit; Prabir Rudra; Sujata Kundu

2013-04-24T23:59:59.000Z

35

Technical Review of Externalities Issues  

Science Conference Proceedings (OSTI)

Externalities, once a term known only to students of economics, has become the catchword for a major experiment in electric utility regulation. It is very important for utilities and policy makers to understand the technical issues and arguments driving the externality experiment. This experiment has important implications for utility costs, competitive positions, environmental quality, and future regulations.

1995-01-28T23:59:59.000Z

36

BNL | ARM External Data Center  

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

External Data Center External Data Center The ARM External Data Center (XDC) identifies sources and acquires data, called "external data", to augment the data generated within the program. The scientific need and the priorities for acquiring, processing and archiving the external data-streams are established by the science working groups and considers such factors as: Availability and accessibility in other archives Acquisition cost Ease of use of the native data-format If this analysis determines that significant value to the ARM data users will be added, the XDC will develop an automated process to acquire the data from the data provider, and reformat the data as necessary into an ARM-compatible data format. The processed data and the native format data are sent to the ARM permanent archive at ORNL.

37

Methods of valuing environmental externalities  

SciTech Connect

Estimating a monetary value for environmental externalities provides an approximation of the societal value of reducing impacts on human health and the environment from electrical energy supply. This method can be used for comparison of resources, including utility and nonutility generation, demand-side management and off-system power purchases. A dollar estimate of the full societal cost of the supply option is established by placing a value on its air, water and terrestrial effects and adding these costs to the option's capital, operating and maintenance costs. This article provides a rationale for monetizing externalities and addresses the strengths and weaknesses of four techniques for monetizing, with examples of the application of each method. The authors preferred technique for incorporating externalities into utility planning in the near term - implied valuation through the estimation of the marginal cost of abatement - is discussed in detail. 2 tabs.

Chernick, P.; Caverhill, E. (Resource Insight, Boston, MA (USA))

1991-03-01T23:59:59.000Z

38

Transportation External Coordination Working Group:  

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

External Coordination External Coordination Working Group: Background and Process Judith Holm National Transportation Program Albuquerque, New Mexico April 21, 2004 TEC History * DOE's Office of Environmental Management (EM) and Office of Civilian Radioactive Waste Management (OCRWM) formed TEC in 1992 * EM & RW developed MOU and TEC charter in 1992 - Other DOE program offices joined in 1993-94 * Other agencies (DOT, FRA, NRC, EPA) have been active participants Meeting Locations 1992-present Some Founding Principles * TEC concept centered on unique stakeholder accountability principles - Participation by key responsible parties in technical/policy issue discussion and resolution results in increased confidence and more efficient business decisions * Ultimate goal: develop multi-year set of

39

Testing and performance evaluation of T1000G/RS-14 graphite/polycyanate composite materials  

Science Conference Proceedings (OSTI)

The performance of a graphite fiber/polycyanate matrix composite material system, T1000G/RS-14, was evaluated by performing an extensive mechanical property test program. The test program included both static strength and long-term tests for creep, fatigue, and stress rupture. The system was evaluated at both ambient temperature and elevated temperatures. The specimens were machined from composite cylinders that had a unidirectional layup with all the fibers oriented in the hoop direction. The cylinders were fabricated using the wet-filament winding process. In general, the T1000G/RS-14 system demonstrated adequate static strengths for possible aerospace structural applications. The results from the static tests indicated that very high composite hoop tensile strengths can be achieved with this system at both ambient and elevated temperatures as high as 350{degree}F. However, in the long-term testing for compressive creep and tension-tension fatigue the results indicated a lower elevated temperature was required to minimize the risk of using this material system. Additional testing and analysis activities led to the selection of 275{degree}F as the desired temperature for future performance evaluation. Subsequent testing efforts for determining the resin and composite transverse compressive creep responses at 275{degrees}F indicated that excessive creep strain rates may still be a weakness of this system. In the long-term tests, sufficient data was generated from impregnated strand and composite ring stress-life testing, and composite ring tension-tension fatigue to determine failure probabilities for a given set of design requirements. The statistical analyses of the test data, in terms of determining failure probability curves, will be reported on in a separate report. However, it is expected that this material system will have a very low failure probability for stress rupture based on the collected stress-life data. Material responses that will require further investigation and/or possible performance improvements are fiber- direction tension-tension fatigue, and both resin and transverse composite compressive creep. Improvements in the creep performance or dimensional stability of this material system may ultimately depend on the test and/or process environment.

Starbuck, J.M.

1997-01-01T23:59:59.000Z

40

Use of Automated External Defibrillators  

SciTech Connect

In an effort to improve survival from cardiac arrest, the American Heart Association (AHA) has promoted the Chain of Survival concept, describing a sequence of prehospital steps that result in improved survival after sudden cardiac arrest. These interventions include immediate deployment of emergency medical services, prompt cardiopulmonary resuscitation, early defibrillation when indicated, and early initiation of advanced medical care. Early defibrillation has emerged as the most important intervention with survival decreasing by 10% with each minute of delay in defibrillation. Ventricular Fibrillation (VF) is a condition in which there is uncoordinated contraction of the heart cardiac muscle of the ventricles in the heart, making them tremble rather than contract properly. VF is a medical emergency and if the arrhythmia continues for more than a few seconds, blood circulation will cease, and death can occur in a matter of minutes. During VF, contractions of the heart are not synchronized, blood flow ceases, organs begin to fail from oxygen deprivation and within 10 minutes, death will occur. When VF occurs, the victim must be defibrillated in order to establish the heart’s normal rhythm. On average, the wait for an ambulance in populated areas of the United States is about 11 minutes. In view of these facts, the EFCOG Electrical Safety Task Group initiated this review to evaluate the potential value of deployment and use of automated external defibrillators (AEDs) for treatment of SCA victims. This evaluation indicates the long term survival benefit to victims of SCA is high if treated with CPR plus defibrillation within the first 3-5 minutes after collapse. According to the American Heart Association (AHA), survival rates as high as 74% are possible if treatment and defibrillation is performed in the first 3 minutes. In contrast survival rates are only 5% where no AED programs have been established to provide prompt CPR and defibrillation. ["CPR statistics" American Heart Association] Early intervention with both CPR and defibrillation can result in high long-term survival rates for SCA, as demonstrated by a study investigating the beneficial effects of AED devices at Chicago’s O’Hare and Midway airports. The American Medical Association (AMA) advocates the widespread placement of AEDs [AMA Res. 413, A-02; Res. 424, A-04]; supports increasing government and industry funding for the purchase of AED devices; and encourages the American public to become trained in CPR and the use of AEDs. Some states, including Maryland, have enacted legislation requiring AED devices and a certified responder be available at high school and school-sponsored athletic events due the risk of SCA to athletes (the most common cause of death in young athletes). Ensuring AED availability at Department of Energy (DOE) sites would serve as a means of preventative intervention for over 14,000 DOE employees and 193,000 contract workers. It is estimated 1 per 1,000 adults 35 years of age and older will experience SCA in a given year.

Gregory K Christensen

2009-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

Overlap Fermion in External Gravity  

E-Print Network (OSTI)

On a lattice, we construct an overlap Dirac operator which describes the propagation of a Dirac fermion in external gravity. The local Lorentz symmetry is manifestly realized as a lattice gauge symmetry, while the general coordinate invariance is expected to be restored only in the continuum limit. The lattice index density in the presence of a gravitational field is calculated.

Hiroto So; Masashi Hayakawa; Hiroshi Suzuki

2006-10-04T23:59:59.000Z

42

Characterization and Correction of Relative Humidity Measurements from Vaisala RS80-A Radiosondes at Cold Temperatures  

Science Conference Proceedings (OSTI)

Radiosonde relative humidity (RH) measurements are known to be unreliable at cold temperatures. This study characterizes radiosonde RH measurements from Vaisala RS80-A thin-film capacitive sensors in the temperature range 0° to ?70°C. Sources of ...

Larry M. Miloshevich; Holger Vömel; Ari Paukkunen; Andrew J. Heymsfield; Samuel J. Oltmans

2001-02-01T23:59:59.000Z

43

Dry Bias and Variability in Vaisala RS80-H Radiosondes: The ARM Experience  

Science Conference Proceedings (OSTI)

Thousands of comparisons between total precipitable water vapor (PWV) obtained from radiosonde (Vaisala RS80-H) profiles and PWV retrieved from a collocated microwave radiometer (MWR) were made at the Atmospheric Radiation Measurement (ARM) ...

D. D. Turner; B. M. Lesht; S. A. Clough; J. C. Liljegren; H. E. Revercomb; D. C. Tobin

2003-01-01T23:59:59.000Z

44

Analysis of core damage frequency due to external events at the DOE (Department of Energy) N-Reactor  

SciTech Connect

A complete external events probabilistic risk assessment has been performed for the N-Reactor power plant, making full use of all insights gained during the past ten years' developments in risk assessment methodologies. A detailed screening analysis was performed which showed that all external events had negligible contribution to core damage frequency except fires, seismic events, and external flooding. A limited scope analysis of the external flooding risk indicated that it is not a major risk contributor. Detailed analyses of the fire and seismic risks resulted in total (mean) core damage frequencies of 1.96E-5 and 4.60E-05 per reactor year, respectively. Detailed uncertainty analyses were performed for both fire and seismic risks. These results show that the core damage frequency profile for these events is comparable to that found for existing commercial power plants if proposed fixes are completed as part of the restart program. 108 refs., 85 figs., 80 tabs.

Lambright, J.A.; Bohn, M.P.; Daniel, S.L. (Sandia National Labs., Albuquerque, NM (USA)); Baxter, J.T. (Westinghouse Hanford Co., Richland, WA (USA)); Johnson, J.J.; Ravindra, M.K.; Hashimoto, P.O.; Mraz, M.J.; Tong, W.H.; Conoscente, J.P. (EQE, Inc., San Francisco, CA (USA)); Brosseau, D.A. (ERCE, Inc., Albuquerque, NM (USA))

1990-11-01T23:59:59.000Z

45

Universal Ownership: Why Environmental Externalities Matter to  

Open Energy Info (EERE)

Universal Ownership: Why Environmental Externalities Matter to Universal Ownership: Why Environmental Externalities Matter to Institutional Investors Jump to: navigation, search Tool Summary Name: Universal Ownership: Why Environmental Externalities Matter to Institutional Investors Agency/Company /Organization: UNEP-Financing Initiative Focus Area: Industry Topics: Co-benefits assessment Resource Type: Lessons learned/best practices Website: www.unepfi.org/fileadmin/documents/universal_ownership.pdf Universal Ownership: Why Environmental Externalities Matter to Institutional Investors Screenshot References: Universal Ownership: Why Environmental Externalities Matter to Institutional Investors[1] Logo: Universal Ownership: Why Environmental Externalities Matter to Institutional Investors Summary "This study assesses the financial implications of unsustainable natural

46

Electricity Generation and Environmental Externalities: Case Studies  

Reports and Publications (EIA)

Provides an overview of the economic foundation of externalities, the Federal and State regulatory approaches, and case studies of the impacts of the externality policies adopted by three States.

Information Center

1995-09-01T23:59:59.000Z

47

Transportation External Coordination Working Group:  

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

Accomplishments and Future Accomplishments and Future Transportation External Coordination Working Group Meeting Phoenix, AZ Judith A. Holm, Office of National Transportation Office of Civilian Radioactive Waste Management April 4, 2005 TEC MEMBER ORGANIZATIONS American College of Emergency Physicians (ACEP) American Nuclear Society (ANS) Association of American Railroads (AAR) Brotherhood of Locomotive Engineers and Trainmen (BLET) Commercial Vehicle Safety Alliance (CVSA) Conference of Radiation Control Program Directors, Inc. (CRCPD) Council of Energy Resource Tribes (CERT) Council of State Governments-Eastern Regional Conference (CSG-ERC) Council of State Governments-Midwestern Office (CSG-MW) Council on Radionuclides and Radiopharmaceuticals (CORAR) Dangerous Goods Advisory Council (DGAC)

48

Compression techniques for fast external sorting  

Science Conference Proceedings (OSTI)

External sorting of large files of records involves use of disk space to store temporary files, processing time for sorting, and transfer time between CPU, cache, memory, and disk. Compression can reduce disk and transfer costs, and, in the case of external ... Keywords: External sorting, Query evaluation, Semi-static compression, Sorting

John Yiannis; Justin Zobel

2007-04-01T23:59:59.000Z

49

External Resources | National Nuclear Security Administration  

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

External Resources | National Nuclear Security Administration External Resources | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog External Resources Home > content > External Resources External Resources National security is not achieved by one government agency alone, but through the joint effort of multiple agencies with extraordinarily talented

50

External Resources | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

External Resources | National Nuclear Security Administration External Resources | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog External Resources Home > content > External Resources External Resources National security is not achieved by one government agency alone, but through the joint effort of multiple agencies with extraordinarily talented

51

FIRE, A Test Bed for ARIES-RS/AT Advanced Physics and Plasma Technology  

SciTech Connect

The overall vision for FIRE [Fusion Ignition Research Experiment] is to develop and test the fusion plasma physics and plasma technologies needed to realize capabilities of the ARIES-RS/AT power plant designs. The mission of FIRE is to attain, explore, understand and optimize a fusion dominated plasma which would be satisfied by producing D-T [deuterium-tritium] fusion plasmas with nominal fusion gains {approx}10, self-driven currents of {approx}80%, fusion power {approx}150-300 MW, and pulse lengths up to 40 s. Achieving these goals will require the deployment of several key fusion technologies under conditions approaching those of ARIES-RS/AT. The FIRE plasma configuration with strong plasma shaping, a double null pumped divertor and all metal plasma-facing components is a 40% scale model of the ARIES-RS/AT plasma configuration. ''Steady-state'' advanced tokamak modes in FIRE with high beta, high bootstrap fraction, and 100% noninductive current drive are suitable for testing the physics of the ARIES-RS/A T operating modes. The development of techniques to handle power plant relevant exhaust power while maintaining low tritium inventory is a major objective for a burning plasma experiment. The FIRE high-confinement modes and AT-modes result in fusion power densities from 3-10 MWm{sup -3} and neutron wall loading from 2-4 MWm{sup -2} which are at the levels expected from the ARIES-RS/AT design studies.

Dale M. Meade

2004-10-21T23:59:59.000Z

52

FIRE, A Test Bed for ARIES-RS/AT Advanced Physics and Plasma Technology  

SciTech Connect

The overall vision for FIRE [Fusion Ignition Research Experiment] is to develop and test the fusion plasma physics and plasma technologies needed to realize capabilities of the ARIES-RS/AT power plant designs. The mission of FIRE is to attain, explore, understand and optimize a fusion dominated plasma which would be satisfied by producing D-T [deuterium-tritium] fusion plasmas with nominal fusion gains {approx}10, self-driven currents of {approx}80%, fusion power {approx}150-300 MW, and pulse lengths up to 40 s. Achieving these goals will require the deployment of several key fusion technologies under conditions approaching those of ARIES-RS/AT. The FIRE plasma configuration with strong plasma shaping, a double null pumped divertor and all metal plasma-facing components is a 40% scale model of the ARIES-RS/AT plasma configuration. ''Steady-state'' advanced tokamak modes in FIRE with high beta, high bootstrap fraction, and 100% noninductive current drive are suitable for testing the physics of the ARIES-RS/A T operating modes. The development of techniques to handle power plant relevant exhaust power while maintaining low tritium inventory is a major objective for a burning plasma experiment. The FIRE high-confinement modes and AT-modes result in fusion power densities from 3-10 MWm{sup -3} and neutron wall loading from 2-4 MWm{sup -2} which are at the levels expected from the ARIES-RS/AT design studies.

Dale M. Meade

2004-10-21T23:59:59.000Z

53

USA RS Basic Contract - Contract No.: DE-RW0000005 | Department of Energy  

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

USA RS Basic Contract - Contract No.: DE-RW0000005 USA RS Basic Contract - Contract No.: DE-RW0000005 USA RS Basic Contract - Contract No.: DE-RW0000005 This document describes the Statement of Work (SOW) of the Management and Operating Contractor (M&O) Contract for the U.S. Department of Energy (DOE), Office of Civilian Radioactive Waste Management (OCRWM) Program's Yucca Mountain Project (YMP). An M&O contract is defined at Federal Acquisition Regulation (FAR) 17.6 and Department of Energy Acquisition Regulation (DEAR) 970. Inasmuch as the assigned mission of OCRWM YMP is dynamic, this SOW is not intended to be exclusive or restrictive, but is intended to provide a broad framework and general scope of work to be performed by the M&O. This SOW does not represent a commitment to, or imply funding for, specific projects

54

External costs of intercity truck freight transportation  

E-Print Network (OSTI)

From a societal perspective, it is desirable for all transportation users to pay their full social (private and external) costs. We estimate four general types of external costs for intercity freight trucking and compare them with the private costs incurred by carriers. Estimated external costs include: accidents (fatalities, injuries, and property damage); emissions (air pollution and greenhouse gases); noise; and unrecovered costs associated with the provision, operation, and maintenance of public facilities. The analysis reveals that external costs are equal to 13.2 % of private costs and user fees would need to be increased about

David J. Forkenbrock

1999-01-01T23:59:59.000Z

55

PNNL: About PNNL: Communications & External Relations  

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

Communications & External Relations At Pacific Northwest National Laboratory (PNNL), scientific breakthroughs happen everyday. So does being a good neighbor. From cultivating...

56

External Independent Review (EIR) Standard Operating Procedure...  

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

Standard Operating Procedure (SOP) External Independent Review (EIR) Standard Operating Procedure (SOP) EIR SOP.pdf More Documents & Publications ICR-ICE Standard Operating...

57

Remote Sens. 2011, 3, 2529-2551; doi:10.3390/rs3112529 Remote Sensing  

E-Print Network (OSTI)

Remote Sens. 2011, 3, 2529-2551; doi:10.3390/rs3112529 Remote Sensing ISSN 2072-4292 www.mdpi.com/journal/remotesensing Article Multispectral Remote Sensing from Unmanned Aircraft: Image Processing Workflows and Applications Abstract: Using unmanned aircraft systems (UAS) as remote sensing platforms offers the unique ability

58

Remote Sensing 2010, 2, 2274-2304; doi:10.3390/rs2092274 Remote Sensing  

E-Print Network (OSTI)

Remote Sensing 2010, 2, 2274-2304; doi:10.3390/rs2092274 Remote Sensing ISSN 2072-4292 www.mdpi.com/journal/remotesensing Review Remote Sensing of Irrigated Agriculture: Opportunities and Challenges Mutlu Ozdogan *, Yang Yang / Published: 27 September 2010 Abstract: Over the last several decades, remote sensing has emerged

Wisconsin at Madison, University of

59

Remote Sens. 2013, 5, 5926-5943; doi:10.3390/rs5115926 Remote Sensing  

E-Print Network (OSTI)

Remote Sens. 2013, 5, 5926-5943; doi:10.3390/rs5115926 Remote Sensing ISSN 2072-4292 www: 6 November 2013 / Accepted: 7 November 2013 / Published: 14 November 2013 Abstract: Remote sensing challenging to model crop yields based on remotely sensed data due to the variation in radiation use

Myneni, Ranga B.

60

Efficient Algorithms for Load Shuffling in Split-Platform AS/RS  

E-Print Network (OSTI)

We address the issue of shuffling loads in Automated Storage/Retrieval Systems (AS/RS) in this paper. The objective is to pre-sort the loads into any specified locations in order to minimize the response time of retrievals. ...

Hu, Yahong

Note: This page contains sample records for the topic "risk external rs" 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

Current Drive and Heating on ARIES-RS/AT, and FIRE-AT  

E-Print Network (OSTI)

requirement, a critical element in systems analysis for the power plant economics. · Select most viable Drive Scenarios for ARIES-RS/AT 1-GWe Power Plants ARIES-AT requires much less current drive power than - Choice of wave launchers · RFCD assessment for FIRE AT modes, based on ARIES experience: - without wall

62

Radiation Dry Bias Correction of Vaisala RS92 Humidity Data and Its Impacts on Historical Radiosonde Data  

Science Conference Proceedings (OSTI)

The Vaisala RS92 radiosonde is the most widely used type of sonde in the current global radiosonde network. One of the largest biases in the RS92 humidity data is its daytime solar radiation dry bias (SRDB). An algorithm [referred to as NCAR ...

Junhong Wang; Liangying Zhang; Aiguo Dai; Franz Immler; Michael Sommer; Holger Vömel

2013-02-01T23:59:59.000Z

63

On strategic default and liquidity risk  

E-Print Network (OSTI)

How does the uncertain provision of external finance affect investment projects' default probability and liquidity risk? In this paper, I study the strategic interaction between many creditors and a single borrower in the context of a two...

Tambakis, Demosthenes N

2002-01-01T23:59:59.000Z

64

Prediction markets for cost and risk assessment  

E-Print Network (OSTI)

Several temporal and political factors can sometimes limit the effectiveness of traditional methods of project tracking and cost estimation. A large organization is susceptible to internal and external risks that are ...

Aggarwal, Taroon

2011-01-01T23:59:59.000Z

65

On Color Superconductivity in External Magnetic Field  

E-Print Network (OSTI)

We study color superconductivity in external magnetic field. We discuss the reason why the mixing angles in color-flavor locked (CFL) and two-flavor superconductivity (2SC) phases are different despite the fact that the CFL gap goes to the 2SC gap for $m_s \\to \\infty$. Although flavor symmetry is explicitly broken in external magnetic field, we show that all values of gaps in their coset spaces of possible solutions in the CFL phase are equivalent in external magnetic field.

E. V. Gorbar

2000-01-20T23:59:59.000Z

66

Proceedings: National conference on environmental externalities  

Science Conference Proceedings (OSTI)

This report is the proceedings of the National Conference on Environmental Externalities. A environmental externality is the environmental impact of a process or a plant that society must endure. It is a social cost and is paid, but not by the company who produced it or the company`s customers who endure it. The main purpose of this report is to gather the many designs and ideas of how and why to internalize the externalities into the pricing systems of the public utility commissions, especially that of the electric utilities. Economic and sociological aspects of the internalization of these externalities are given in these proceedings. Individual papers are processed separately for databases. (MB)

Not Available

1990-12-31T23:59:59.000Z

67

External Technical Reviews | Department of Energy  

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

Waste Management » Tank Waste and Waste Processing » Waste Management » Tank Waste and Waste Processing » External Technical Reviews External Technical Reviews Documents Available for Download September 1, 2011 Peer Review of the ASCEM Program 2010 Full Document and Summary Versions are available for download September 1, 2011 Compilation of ETR Summaries ETR Summaries from 2011 February 15, 2011 External Technical Review Report for Small Column Ion Exchange Technology at Savannah River Site Full Document and Summary Versions are available for download September 30, 2009 External Technical Review for Evaluation of System Level Modeling and Simulation Tools in Support of Hanford Site Liquid Waste Process Full Document and Summary Versions are available for download June 30, 2009 Evaluation of System Level Modeling and Simulation Tools in Support of

68

Transportation External Coordination Working Group (TEC)  

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

TEC was formed in 1992 to improve coordination between the U.S. Department of Energy (DOE) and external groups interested in the Department's transportation activities. TEC is co-chaired by DOE's...

69

External Program Review University of Idaho  

E-Print Network (OSTI)

7/20/2012 External Program Review University of Idaho Overview 1 Program review, as it is widely that the University of Idaho "exercise the leadership and coordination necessary for periodic program review

Kyte, Michael

70

The ??? Amplitude in an External Homogeneous Electromagnetic  

E-Print Network (OSTI)

Neutrino-photon interactions in the presence of an external homogeneous constant electromagnetic field are studied. The ??? amplitude is calculated in an electromagnetic field of the general type, when the two field invariants are nonzero.

R. Shaisultanov

2000-01-01T23:59:59.000Z

71

External Costs of Energy Technologies Position Statement  

E-Print Network (OSTI)

The American Nuclear Society believes that decisions concerning national energy policy should appropriately take external costs into account. In some energy options, external costs are not included in the cost of the energy produced; instead, they are borne by parties not involved in the original transaction, generally without consent or due compensation. External costs 1 may be related to many factors, including impacts on public health, environmental impacts, degradation of quality of life, degradation of agricultural land, depletion of natural resources, and reduction in security. These costs are incurred at various stages of the life cycle of an energy technology. While some energy technologies may appear to have smaller environmental impacts than others, their external costs may be significant when the complete life cycle costs are taken into account. Particularly, an energy source that is inherently intermittent will require, for applications demanding reliable performance, either a backup energy supply or an energy storage facility, whose external costs are not negligible. On the other hand, practically all the costs to make nuclear power technology safe and secure, including the costs of waste management and disposal, are already incorporated into the cost of electricity generation. 2 Appropriately accounting for external costs should be an essential element in energy policy since in doing so, the final product is compared based on a consistent set of parameters for all technologies, and the resulting mix of energy sources will more appropriately balance the competing economic, environmental, and social needs from energy production and consumption.

unknown authors

2010-01-01T23:59:59.000Z

72

Compressive Creep Response of T1000G/RS-14 Graphite/Polycyanate Composite Materials  

SciTech Connect

The response of a T1000G/RS-14 graphite/polycyanate composite material system to transverse compressive loads is quantified via experimentation. The primary objective of the work was to quantify the effects of process environment and test environment on the T1000G/RS-14 compressive creep response. Tests were conducted on both the neat resin and the composite material system. In addition to the creep tests, static compressive strength tests were conducted to define the stress-strain response. The creep behavior for the RS-14 resin was quantified by conducting a series of tests to study the effects of different process environments (air and nitrogen), different cure temperatures, and different test environments (air and vacuum). The combined effect on the RS-14 resin compressive creep of processing in nitrogen and testing under vacuum versus processing in air and testing in air was a 47% decrease in the creep strain after 2177 hr. The test environment appeared to have a greater effect on the resin creep than the process environment. Following the conclusion of the resin creep tests, composite transverse compressive creep tests were conducted. The composite creep test cylinder was post-cured in a nitrogen environment prior to machining test specimens and all tests were conducted in a vacuum environment. The series of tests investigated the effects of initial stress level and test temperature on the creep behavior. At the end of the 2000-hr tests at 275{degrees}F on specimens stressed at 10,000 psi, the nitrogen-processed and vacuum-tested conditions reduced the composite transverse compressive creep strain by 19% compared to processing in air and testing in air. The effects of process and test environment on the creep behavior are not as great for the composite system as they were for the neat resin, primarily because of the low resin content in the composite material system. At the 275{degrees}F test temperature there was a significant increase in the composite transverse compressive creep strain between the 6000-psi and 10,000-psi stress levels. Despite the reduction in creep strains due to processing in a nitrogen environment, dimensional stability of the T1000G/RS-14 composite at high transverse compressive stress levels and high temperatures may still be an issue when selecting this system for future applications.

Starbuck, J.M.

1998-01-01T23:59:59.000Z

73

The EU's external energy security policy : A comparative analysis of the EU's external energy relations.  

E-Print Network (OSTI)

??This thesis analyses the EU´s external energy security policy through a comparative analysis of the energy relations between the EU and important producers of natural… (more)

Cook, Hanne

2011-01-01T23:59:59.000Z

74

Monotone and Conservative Cascade Remapping between Spherical Grids (CaRS): Regular Latitude–Longitude and Cubed-Sphere Grids  

Science Conference Proceedings (OSTI)

A high-order monotone and conservative cascade remapping algorithm between spherical grids (CaRS) is developed. This algorithm is specifically designed to remap between the cubed-sphere and regular latitude–longitude grids. The remapping approach ...

Peter H. Lauritzen; Ramachandran D. Nair

2008-04-01T23:59:59.000Z

75

Corrections of Humidity Measurement Errors from the Vaisala RS80 Radiosonde—Application to TOGA COARE Data  

Science Conference Proceedings (OSTI)

A series of laboratory tests have been conducted on several different batches of Vaisala RS80 radiosondes to understand and develop methods to correct six humidity measurement errors, including chemical contamination, temperature dependence, ...

Junhong Wang; Harold L. Cole; David J. Carlson; Erik R. Miller; Kathryn Beierle; Ari Paukkunen; Tapani K. Laine

2002-07-01T23:59:59.000Z

76

Building Technologies Office: Battery Chargers and External Power...  

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

Battery Chargers and External Power Supplies Framework Document Public Meeting to someone by E-mail Share Building Technologies Office: Battery Chargers and External Power Supplies...

77

External Costs of Transport in the U.S.  

E-Print Network (OSTI)

European External Cost Estimates,” Transportation Researchin the external-cost estimates reviewed here. Althoughtruck shipment in 1991 (low-cost estimate from Table 1-A5 of

Delucchi, Mark A.; McCubbin, Donald R.

2010-01-01T23:59:59.000Z

78

Meeting on Battery Chargers and External Power Supplies | Department...  

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

Sites Power Marketing Administration Other Agencies You are here Home Meeting on Battery Chargers and External Power Supplies Meeting on Battery Chargers and External Power...

79

Variation in Use of Androgen Suppression With External-Beam Radiotherapy for Nonmetastatic Prostate Cancer  

SciTech Connect

Purpose: To describe practice patterns associated with androgen suppression (AS) stratified by disease risk group in patients undergoing external-beam radiotherapy (EBRT) for localized prostate cancer. Methods and Materials: We identified 2,184 low-risk, 2,339 intermediate-risk, and 2,897 high-risk patients undergoing EBRT for nonmetastatic prostate cancer diagnosed between January 1, 2004, and December 31, 2005, in the linked Surveillance, Epidemiology, and End Results-Medicare database. We examined the association of patient, clinical, and demographic characteristics with AS use by multivariate logistic regression. Results: The proportions of patients receiving AS for low-risk, intermediate-risk, and high-risk prostate cancer were 32.2%, 56.3%, and 81.5%, respectively. AS use among men in the low-risk disease category varied widely, ranging from 13.6% in Detroit to 47.8% in Kentucky. We observed a significant decline in AS use between 2004 and 2005 within all three disease risk categories. Men aged {>=}75 years or with elevated comorbidity levels were more likely to receive AS. Conclusion: Our results identified apparent overuse and underuse of AS among men within the low-risk and high-risk disease categories, respectively. These results highlight the need for clinician and patient education regarding the appropriate use of AS. Practice patterns among intermediate-risk patients reflect the clinical heterogeneity of this population and underscore the need for better evidence to guide the treatment of these patients.

Swisher-McClure, Samuel, E-mail: Swisher-Mcclure@uphs.upenn.edu [Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA (United States); Pollack, Craig E. [Division of General Internal Medicine, Johns Hopkins University School of Medicine and Johns Hopkins Bloomberg School of Public Health, Baltimore, MD (United States); Christodouleas, John P. [Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA (United States); Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA (United States); Guzzo, Thomas J. [Department of Surgery, Division of Urology, University of Pennsylvania, Philadelphia, PA (United States); Haas, Naomi B. [Department of Medicine, Division of Hematology and Oncology, University of Pennsylvania, Philadelphia, PA (United States); Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA (United States); Vapiwala, Neha [Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA (United States); Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA (United States); Bekelman, Justin E. [Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA (United States); Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA (United States); Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA (United States)

2012-05-01T23:59:59.000Z

80

External Technical Reviews | Department of Energy  

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

Services » Waste Management » Tank Waste and Waste Processing » Services » Waste Management » Tank Waste and Waste Processing » External Technical Reviews External Technical Reviews Documents Available for Download March 17, 2006 Hanford ETR Tank Waste Treatment and Immobilization Plant - Hanford Tank Waste Treatment and Immobilization Plant Technical Review - External Flowsheet Review Team (Technical) Report Full Document and Summary Versions are available for download previous 1 2 next Miscellaneous Supporting Information January 9, 2007 Savannah River Site - Salt Waste Processing Facility: Briefing on the Salt Waste Processing Facility Independent Technical Review August 10, 2006 Savannah River Site - Tank 48 Briefing on SRS Tank 48 Independent Technical Review August 10, 2006 Savannah River Site - Tank 48 Transmittal Letter of SRS Tank 48 Review

Note: This page contains sample records for the topic "risk external rs" 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

External Leadership Resources | Department of Energy  

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

External Leadership Resources External Leadership Resources External Leadership Resources Here we provide specific links to resources, including training, guidance, blogs, newsletters, etc., for leadership development. Brainpickings - Brain Pickings is a human-powered discovery engine for interestingness, a subjective lens on what matters in the world and why, bringing you things you didn't know you were interested in - until are you. Department of Commerce- DOC has developed a succession strategy to: 1) Implement a leadership succession pipeline that links to the Department's mission critical occupations; 2) Manage a graduated series of competitive programs that identifies, selects and develops emerging leaders in engaging learning experiences; 3) Create a continuous learning environment that builds skills and enhances competencies throughtout the

82

Transportation External Coordination Working Group (TEC)  

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

Transportation External Coordination Working Group (TEC) Transportation External Coordination Working Group (TEC) July 17-19, 2001 Cincinnati, Ohio Meeting Summary The Transportation External Coordination Working Group (TEC) held its 19 th semi-annual meeting July 17-19, 2001, in Cincinnati, Ohio. One hundred fifteen people attended (see Appendix A for listing of participants). Jim Carlson, U.S. Department of Energy (DOE) Office of Civilian Radioactive Waste Management (OCRWM) and TEC co-chair, welcomed participants to the meeting. He then introduced Robert Owen of the Ohio Department of Health, and Jim Richter of the Cincinnati/Hamilton County Emergency Management Agency, who also made some welcoming remarks. Topic Group Meetings Tribal Issues Topic Group Issues discussed during this meeting included the Federal Railroad Administration (FRA) rail safety pilot

83

V474 Car: A RARE HALO RS CVn BINARY IN RETROGRADE GALACTIC ORBIT  

Science Conference Proceedings (OSTI)

We report the discovery that the star V474 Car is an extremely active, high velocity halo RS CVn system. The star was originally identified as a possible pre-main-sequence star in Carina, given its enhanced stellar activity, rapid rotation (10.3 days), enhanced Li, and absolute magnitude which places it above the main sequence (MS). However, its extreme radial velocity (264 km s{sup -1}) suggested that this system was unlike any previously known pre-MS system. Our detailed spectroscopic analysis of echelle spectra taken with the CTIO 4 m finds that V474 Car is both a spectroscopic binary with an orbital period similar to the photometric rotation period and metal-poor ([Fe/H] {approx_equal}-0.99). The star's Galactic orbit is extremely eccentric (e {approx_equal} 0.93) with a perigalacticon of only {approx}0.3 kpc of the Galactic center-and the eccentricity and smallness of its perigalacticon are surpassed by only {approx}0.05% of local F/G-type field stars. The observed characteristics are consistent with V474 Car being a high-velocity, metal-poor, tidally locked, chromospherically active binary, i.e., a halo RS CVn binary, and one of only a few such specimens known.

Bubar, Eric J.; Mamajek, Eric E. [Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627-0171 (United States); Jensen, Eric L. N. [Swarthmore College, Department of Physics and Astronomy, 500 College Avenue, Swarthmore, PA 19081 (United States); Walter, Frederick M. [Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800 (United States)

2011-04-15T23:59:59.000Z

84

Optimal Pricing in Networks with Externalities  

Science Conference Proceedings (OSTI)

We study the optimal pricing strategies of a monopolist selling a divisible good (service) to consumers who are embedded in a social network. A key feature of our model is that consumers experience a (positive) local network effect. In particular, ... Keywords: externalities, optimal pricing, social networks

Ozan Candogan; Kostas Bimpikis; Asuman Ozdaglar

2012-07-01T23:59:59.000Z

85

Hard thermal loops in static external fields  

E-Print Network (OSTI)

We study, in the imaginary-time formalism, the high temperature behavior of n-point thermal loops in static Yang-Mills and gravitational fields. We show that in this regime, any hard thermal loop gives the same leading contribution as the one obtained by evaluating the loop at zero external energies and momenta.

Frenkel, J; Takahashi, N

2009-01-01T23:59:59.000Z

86

External and mental referencing of multiple representations  

Science Conference Proceedings (OSTI)

This article reports on two experimental studies that investigate the impact of integration and external activity on an instructional support method that encourages learners to systematically and interactively integrate multiple representations in the ... Keywords: Cognitive load, Coherence formation, Multimedia, Multiple representations, Structure mapping, Visualizations

Daniel Bodemer; Uwe Faust

2006-01-01T23:59:59.000Z

87

Algorithms and data structures for external memory  

Science Conference Proceedings (OSTI)

Data sets in large applications are often too massive to fit completely inside the computer's internal memory. The resulting input/output communication (or I/O) between fast internal memory and slower external memory (such as disks) can be a major performance ...

Jeffrey Scott Vitter

2008-01-01T23:59:59.000Z

88

External Costs Associated to Electricity Generation Options in Brazil  

SciTech Connect

This presentation discusses external costs associated with electricity generation options in Brazil.

Jacomino, V.M.F.; Arrone, I.D.; Albo, J.; Grynberg, S.; Spadaro, J.

2004-10-03T23:59:59.000Z

89

Risk Assessment of Operational Events Volume 2 – External Events Internal Fires – Internal Flooding – Seismic – Other External Events  

E-Print Network (OSTI)

1.1 Objectives................................................................................................................1-1

Frequencies Seismically-induced; Loop Events

2008-01-01T23:59:59.000Z

90

Transportation External Coordination Working Group (TEC)  

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

Portland, Oregon - February 6-7, 2001 Portland, Oregon - February 6-7, 2001 Transportation External Coordination Working Group (TEC) February 6-7, 2001 Portland, Oregon Meeting Summary The Transportation External Coordination Working Group (TEC) held its 18 th semi-annual meeting February 6-7, 2001, in Portland, Oregon. Attending were 125 representatives from national, State, Tribal and local government organizations, industry and professional groups and other interested parties/DOE programs who meet to address a variety of issues related to DOE's radioactive materials transportation activities and provide continuing and improved coordination between DOE, other levels of government, and outside organizations with DOE transportation-related responsibilities. PLENARY I - TRANSCOM 2000 PRESENTATION (February 6)

91

FINAL Transportation External Coordination Working Group (TEC)  

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

Transportation External Coordination Working Group (TEC) January 28-30, 2002 New Orleans, Louisiana Meeting Summary The Transportation External Coordination Working Group (TEC) held its 20 th semi-annual meeting January 28-30, 2002, in New Orleans, Louisiana. This was the tenth anniversary of TEC, and 102 attendees from national, State, Tribal, and local government organizations; industry and professional groups and other interested parties in the U.S. Department of Energy (DOE) programs, met to address a variety of issues related to DOE's radioactive materials transportation activities. The TEC process includes the involvement of these key stakeholders in developing solutions to DOE transportation issues through their actual participation in the work product. These members provide continuing and improved

92

Cold neutrons trapped in external fields  

E-Print Network (OSTI)

The properties of inhomogeneous neutron matter are crucial to the physics of neutron-rich nuclei and the crust of neutron stars. Advances in computational techniques now allow us to accurately determine the binding energies and densities of many neutrons interacting via realistic microscopic interactions and confined in external fields. We perform calculations for different external fields and across several shells to place important constraints on inhomogeneous neutron matter, and hence the large isospin limit of the nuclear energy density functionals that are used to predict properties of heavy nuclei and neutron star crusts. We find important differences between microscopic calculations and current density functionals; in particular the isovector gradient terms are significantly more repulsive than in traditional models, and the spin-orbit and pairing forces are comparatively weaker.

S. Gandolfi; J. Carlson; Steven C. Pieper

2010-10-21T23:59:59.000Z

93

Risk Prioritization  

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

Quality Managers Quality Managers Software Quality Assurance Subcommittee Reference Document SQAS21.01.00 - 1999 Software Risk Management A Practical Guide February, 2000 Abstract This document is a practical guide for integrating software risk management into a software project. The purpose of Risk Management is to identify, assess and control project risks. Identified risks are analyzed to determine their potential impact and likelihood of occurrence. Risk Management Plans are developed to document the project's approach to risk management, risks, and decisions made about what should be done with each risk. Risks and risk actions are then tracked to closure. Software Risk Management: A Practical Guide SQAS21.01.00 Acknowledgments This document was prepared for the Department of Energy (DOE) by a Working Group of the DOE

94

ARR/ARIES meeting, UW, May 3-4/99 Advanced ARIES-RS Using SiC/SiC as Structural  

E-Print Network (OSTI)

ARR/ARIES meeting, UW, May 3-4/99 Advanced ARIES-RS Using SiC/SiC as Structural Material A. René Raffray ARIES Meeting May 3-4, 1999 UW, Madison, WI #12;ARR/ARIES meeting, UW, May 3-4/99 SiC/SiC Based Limiting Sets of Input Parameters - 1 x ARIES-RS - 2 x ARIES-RS · Latest SiC/SiC Property Data · Options

Raffray, A. René

95

Building Technologies Office: Battery Chargers and External Power Supplies  

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

Battery Chargers and Battery Chargers and External Power Supplies Framework Document Public Meeting to someone by E-mail Share Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Facebook Tweet about Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Twitter Bookmark Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Google Bookmark Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Delicious Rank Building Technologies Office: Battery Chargers and External Power Supplies Framework Document Public Meeting on Digg Find More places to share Building Technologies Office: Battery

96

EM Announces New Director of Office of External Affairs | Department...  

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

EM Announces New Director of Office of External Affairs EM Announces New Director of Office of External Affairs May 7, 2012 - 12:00pm Addthis WASHINGTON, D.C. - EM has announced...

97

Environmental externalities: Applying the concept to Asian coal-based power generation. [Includes external environmental and societal costs and methods of evaluating them  

SciTech Connect

This report examines the concept of environmental externality. It discusses various factors -- the atmospheric transformations, relationship of point-source emissions to ambient air quality, dose-response relationships, applicable cause-and-effect principles, and risk and valuation research -- that are considered by a number of state utilities when they apply the environmental externality concept to energy resource planning. It describes a methodology developed by Argonne National Laboratory for general use in resource planning, in combination with traditional methods that consider the cost of electricity production. Finally, it shows how the methodology can be applied in Indonesia, Thailand, and Taiwan to potential coal-fired power plant projects that will make use of clean coal technologies.

Szpunar, C.B.; Gillette, J.L.

1993-03-01T23:59:59.000Z

98

Help:External searches | Open Energy Information  

Open Energy Info (EERE)

searches searches Jump to: navigation, search 50px Move proposal : It has been suggested that this page be moved to a new name : '(new name to be decided)'. Use the talk page to discuss this action. It is possible to create an external searches of a topic using key words using a template. For example, this is something that would work for Google: [[Image:GoogleIcon.PNG]] [http://www.google.com/search?hl=en&safe=off&q={{{1|Wiki}}}&btnG=Search&meta= {{{1|Google}}}] ==Usage== Allows to establish a link to a search query at the Google search engine: {{Google|Term1+Term2+Term3}}

99

Consumption externalities, habit formation and equilibrium efficiency  

E-Print Network (OSTI)

We analyze the welfare properties of the competitive equilibrium in a capital accumulation model where individual preferences are subject to both habit formation and consumption spillovers. Using an additive specification for preferences, according to which the argument in the utility function is a linear combination of present and past values of own consumption and consumption spillovers, we analyze the circumstances under which these spillovers are a source of inefficiency. It is shown that consumption externalities have to interact with habits in order to generate an inefficient dynamic equilibrium. Finally, we characterize optimal tax policies aimed at restoring efficient decentralized paths.

Jaime Alonso-carrera; Jordi Caballé; Xavier Raurich

2004-01-01T23:59:59.000Z

100

Past experiences with automotive external combustion engines  

SciTech Connect

GMR (General Motors Research Laboratories, now GM R and D Center) has a history of improving the internal combustion engine, especially as it relates to automotive use. During the quarter century from 1950--75, considerable effort was devoted to evaluating alternative powerplants based on thermodynamic cycles different from those on which the established spark-ignition and diesel engines are founded. Two of these, the steam engine and the Stirling engine, incorporated external combustion. Research on those two alternatives is reviewed. Both were judged to fall short of current needs for commercial success as prime movers for conventional automotive vehicles.

Amann, C.A.

1999-07-01T23:59:59.000Z

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


101

JAN 183 26 [1] R.S. Bird. Lectures on constructive functional programming. In M. Broy, editor, Constructive Methods  

E-Print Network (OSTI)

University of Technology, 1990. [3] C. Morgan. Programming from Specifications. Series in Computer Science (C.A.RJAN 183 ­26 END OD END References [1] R.S. Bird. Lectures on constructive functional programming. In M. Broy, editor, Constructive Methods in Computing Science, NATO ASI Series F, pages 151

102

XI Encontro de Qumica da Regio Sul (XI SBQSUL) Pelotas, RS 5 a 7 de Novembro de 2003  

E-Print Network (OSTI)

SBQSUL) QA-09 Pelotas, RS ­ 5 a 7 de Novembro de 2003 Estudo dos complexos de carboximetil celulose e-Vis. Introdução A Carboximetil celulose (CMC) é um polímero linear, que possui grupamentos hidroxilas e

Ferreira, Márcia M. C.

103

Internal/External Split Field Generator - Energy Innovation Portal  

Wind Energy Vehicles and Fuels Industrial Technologies Hydropower, Wave and Tidal Geothermal Internal/External Split Field Generator Oak Ridge ...

104

Energy Conservation Standards for Battery Chargers and External Power  

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

Battery Chargers and External Battery Chargers and External Power Supplies; Proposed Rule Making - Ex Parte Communication Energy Conservation Standards for Battery Chargers and External Power Supplies; Proposed Rule Making - Ex Parte Communication Apple Inc. met with DOE to discuss the notice of proposed rule making the Department sent out regarding battery chargers and external power supplies. Below is a list of topics that Apple discussed with DOE. Apple_ex_parte_communication.pdf More Documents & Publications Request for Information on Evaluating New Products for the Battery Chargers and External Power Supply Rulemaking - Ex Parte Communication HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External Power Supplies HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External

105

Fondazione Eni Enrico MatteiEnvironmental Externalities of Geological Carbon Sequestration Effects on Energy Scenarios Summary  

E-Print Network (OSTI)

Geological carbon sequestration seems one of the promising options to address, in the near term, the global problem of climate change, since carbon sequestration technologies are in principle available today and their costs are expected to be affordable. Whereas extensive technological and economic feasibility studies rightly point out the large potential of this ‘clean fossil fuel ’ option, relatively little attention has been paid so far to the detrimental environmental externalities that the sequestering of CO2 underground could entail. This paper assesses what the relevance might be of including these external effects in long-term energy planning and scenario analyses. Our main conclusion is that, while these effects are generally likely to be relatively small, carbon sequestration externalities do matter and influence the nature of future world energy supply and consumption. More importantly, since geological carbon storage (depending on the method employed) may in some cases have substantial external impacts, in terms of both environmental damage and health risks, it is recommended that extensive studies are performed to quantify these effects. This article addresses three main questions: (i) What may energy supply look like if one accounts for large-scale CO2 sequestration in the construction of long-term energy and

Koen Smekens; Bob Van Der Zwaan; Nota Di Lavoro

2004-01-01T23:59:59.000Z

106

Environmental externalities: Applying the concept to Asian coal-based power generation  

SciTech Connect

This report examines the concept of environmental externality. It discusses various factors -- the atmospheric transformations, relationship of point-source emissions to ambient air quality, dose-response relationships, applicable cause-and-effect principles, and risk and valuation research -- that are considered by a number of state utilities when they apply the environmental externality concept to energy resource planning. It describes a methodology developed by Argonne National Laboratory for general use in resource planning, in combination with traditional methods that consider the cost of electricity production. Finally, it shows how the methodology can be applied in Indonesia, Thailand, and Taiwan to potential coal-fired power plant projects that will make use of clean coal technologies.

Szpunar, C.B.; Gillette, J.L.

1993-03-01T23:59:59.000Z

107

Carbon Sequestration Risks and Risk Management  

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

Carbon Sequestration Risks and Risk Management Title Carbon Sequestration Risks and Risk Management Publication Type Report Year of Publication 2008 Authors Price, Phillip N.,...

108

External combustor for gas turbine engine  

DOE Patents (OSTI)

An external combustor for a gas turbine engine has a cyclonic combustion chamber into which combustible gas with entrained solids is introduced through an inlet port in a primary spiral swirl. A metal draft sleeve for conducting a hot gas discharge stream from the cyclonic combustion chamber is mounted on a circular end wall of the latter adjacent the combustible gas inlet. The draft sleeve is mounted concentrically in a cylindrical passage and cooperates with the passage in defining an annulus around the draft sleeve which is open to the cyclonic combustion chamber and which is connected to a source of secondary air. Secondary air issues from the annulus into the cyclonic combustion chamber at a velocity of three to five times the velocity of the combustible gas at the inlet port. The secondary air defines a hollow cylindrical extension of the draft sleeve and persists in the cyclonic combustion chamber a distance of about three to five times the diameter of the draft sleeve. The hollow cylindrical extension shields the drive sleeve from the inlet port to prevent discharge of combustible gas through the draft sleeve.

Santanam, Chandran B. (Indianapolis, IN); Thomas, William H. (Indianapolis, IN); DeJulio, Emil R. (Columbus, IN)

1991-01-01T23:59:59.000Z

109

External Links | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Scientific and Technical Information Honors & Awards Jobs Contact Us You are here: SC Home About Organization Support Offices Budget Home External Links...

110

REG-002 External Document Register 11_0426  

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

Documents 2212006 EOTA Staff NA January-12 Occupational Radiation Protection 10 CFR 83 Part 835 J:EOTA QMS (ISO 9001)Master Copies of External Documents 12141993 Must...

111

Energy Conservation Standards for Battery Chargers and External...  

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

Administration Other Agencies You are here Home Energy Conservation Standards for Battery Chargers and External Power Supplies; Proposed Rule Making - Ex Parte Communication...

112

An Open Systems Model for Providing Universal, Reusable External...  

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

An Open Systems Model for Providing Universal, Reusable External Power Supplies for Consumer Electronics and other DC Powered Products Speaker(s): Gus Pabon Seth Socolow Date:...

113

JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms\\external_examiners_pg_report JL.doc  

E-Print Network (OSTI)

JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms\\external_examiners_pg_report JL.doc Comment:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms\\external_examiners_pg_report JL.doc 4 The procedures

Davies, Christopher

114

Influence of external forces on the behaviour of redundant manipulators  

Science Conference Proceedings (OSTI)

The paper considers the influence of external forces on the behaviour of a redundant manipulator. It is assumed that the forces can act anywhere on the body of the manipulator. First, the equivalent generalized forces in the task space and the null space ... Keywords: Control algorithm, External forces, Position accuracy, Redundant manipulators

Leon &ZCARON;lajpah

1999-05-01T23:59:59.000Z

115

Historical Information on the Transportation External Coordination Working  

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

Historical Information on the Transportation External Coordination Historical Information on the Transportation External Coordination Working Group (TEC) Historical Information on the Transportation External Coordination Working Group (TEC) Historical Information on the Transportation External Coordination Working Group (TEC) TEC was formed in 1992 to improve coordination between the U.S. Department of Energy (DOE) and external groups interested in the Department's transportation activities. TEC was co-chaired by DOE's Office of Civilian Radioactive Waste Management and the Office of Environmental Management. Going the Distance "Going the Distance? The Safe Transport of Spent Nuclear Fuel and High-Level Radioactive Waste in the United States" available for free download from the National Academic Press Resources

116

China's Coal: Demand, Constraints, and Externalities  

Science Conference Proceedings (OSTI)

This study analyzes China's coal industry by focusing on four related areas. First, data are reviewed to identify the major drivers of historical and future coal demand. Second, resource constraints and transport bottlenecks are analyzed to evaluate demand and growth scenarios. The third area assesses the physical requirements of substituting coal demand growth with other primary energy forms. Finally, the study examines the carbon- and environmental implications of China's past and future coal consumption. There are three sections that address these areas by identifying particular characteristics of China's coal industry, quantifying factors driving demand, and analyzing supply scenarios: (1) reviews the range of Chinese and international estimates of remaining coal reserves and resources as well as key characteristics of China's coal industry including historical production, resource requirements, and prices; (2) quantifies the largest drivers of coal usage to produce a bottom-up reference projection of 2025 coal demand; and (3) analyzes coal supply constraints, substitution options, and environmental externalities. Finally, the last section presents conclusions on the role of coal in China's ongoing energy and economic development. China has been, is, and will continue to be a coal-powered economy. In 2007 Chinese coal production contained more energy than total Middle Eastern oil production. The rapid growth of coal demand after 2001 created supply strains and bottlenecks that raise questions about sustainability. Urbanization, heavy industrial growth, and increasing per-capita income are the primary interrelated drivers of rising coal usage. In 2007, the power sector, iron and steel, and cement production accounted for 66% of coal consumption. Power generation is becoming more efficient, but even extensive roll-out of the highest efficiency units would save only 14% of projected 2025 coal demand for the power sector. A new wedge of future coal consumption is likely to come from the burgeoning coal-liquefaction and chemicals industries. If coal to chemicals capacity reaches 70 million tonnes and coal-to-liquids capacity reaches 60 million tonnes, coal feedstock requirements would add an additional 450 million tonnes by 2025. Even with more efficient growth among these drivers, China's annual coal demand is expected to reach 3.9 to 4.3 billion tonnes by 2025. Central government support for nuclear and renewable energy has not reversed China's growing dependence on coal for primary energy. Substitution is a matter of scale: offsetting one year of recent coal demand growth of 200 million tonnes would require 107 billion cubic meters of natural gas (compared to 2007 growth of 13 BCM), 48 GW of nuclear (compared to 2007 growth of 2 GW), or 86 GW of hydropower capacity (compared to 2007 growth of 16 GW). Ongoing dependence on coal reduces China's ability to mitigate carbon dioxide emissions growth. If coal demand remains on a high growth path, carbon dioxide emissions from coal combustion alone would exceed total US energy-related carbon emissions by 2010. Within China's coal-dominated energy system, domestic transportation has emerged as the largest bottleneck for coal industry growth and is likely to remain a constraint to further expansion. China has a low proportion of high-quality reserves, but is producing its best coal first. Declining quality will further strain production and transport capacity. Furthermore, transporting coal to users has overloaded the train system and dramatically increased truck use, raising transportation oil demand. Growing international imports have helped to offset domestic transport bottlenecks. In the long term, import demand is likely to exceed 200 million tonnes by 2025, significantly impacting regional markets.

Aden, Nathaniel; Fridley, David; Zheng, Nina

2009-07-01T23:59:59.000Z

117

Estimating Externalities of Natural Gas Fuel Cycles, Report 4  

SciTech Connect

This report describes methods for estimating the external costs (and possibly benefits) to human health and the environment that result from natural gas fuel cycles. Although the concept of externalities is far from simple or precise, it generally refers to effects on individuals' well being, that result from a production or market activity in which the individuals do not participate, or are not fully compensated. In the past two years, the methodological approach that this report describes has quickly become a worldwide standard for estimating externalities of fuel cycles. The approach is generally applicable to any fuel cycle in which a resource, such as coal, hydro, or biomass, is used to generate electric power. This particular report focuses on the production activities, pollution, and impacts when natural gas is used to generate electric power. In the 1990s, natural gas technologies have become, in many countries, the least expensive to build and operate. The scope of this report is on how to estimate the value of externalities--where value is defined as individuals' willingness to pay for beneficial effects, or to avoid undesirable ones. This report is about the methodologies to estimate these externalities, not about how to internalize them through regulations or other public policies. Notwithstanding this limit in scope, consideration of externalities can not be done without considering regulatory, insurance, and other considerations because these institutional factors affect whether costs (and benefits) are in fact external, or whether they are already somehow internalized within the electric power market. Although this report considers such factors to some extent, much analysis yet remains to assess the extent to which estimated costs are indeed external. This report is one of a series of reports on estimating the externalities of fuel cycles. The other reports are on the coal, oil, biomass, hydro, and nuclear fuel cycles, and on general methodology.

Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

1998-01-01T23:59:59.000Z

118

Consumption Externalities: A Representative Consumer Model when Agents are Heterogeneous *  

E-Print Network (OSTI)

Abstract: We examine a growth model with consumption externalities where agents differ in their initial capital endowment and their reference group. We show under which conditions the aggregate equilibrium with heterogeneous agents replicates that obtained with a representative consumer, despite the fact that different individuals have different consumption levels. Next we consider the implications of the presence of consumption externalities for the long-run distributions of income and wealth. We find that, in a growing economy, “keeping up with the Joneses ” results in less inequality than would prevail in an economy with no consumption externalities.

Cecilia García-peńalosa; Stephen J. Turnovsky

2007-01-01T23:59:59.000Z

119

Cerenkov radiation by charged particles in an external gravitational field  

E-Print Network (OSTI)

Charged particles in the geodesic trajectory of an external gravitational field do not emit electromagnetic radiation. This is expected from the application of the equivalence principle. We show here that charged particles propagating in an external gravitational field with non-zero components of the Ricci tensor can emit radiation by the \\v{C}erenkov process. The external gravitational field acts like an effective refractive index for light. Since the Ricci tensor cannot be eliminated by a change of coordinates, there is no violation of the equivalence principle in this process.

Anshu Gupta; Subhendra Mohanty; Manoj K. Samal

1995-09-05T23:59:59.000Z

120

The Externalities of Risky Science Preliminary and incomplete  

E-Print Network (OSTI)

When scientists choose research projects with the highest expected value an externality can appear; slight variations on existing work will be selected in preference to new lines of research that would ultimately generate more value. New research enjoys two advantages: it is riskier and hence more likely to lead to high-value follow-up projects and it can generate more follow-up projects. Less communication among scientists can mitigate the externality, as can the presence of scientists who are risktakers and secretive. When scientists maximize citations rather than expected value, the externality can but need not be alleviated.

Michael Mandler

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

Numerical simulation of graphene in external magnetic field  

E-Print Network (OSTI)

In this paper the results of numerical simulation of monolayer graphene in external magnetic field are presented. The numerical simulation is performed in the effective lattice field theory with noncompact $3 + 1$-dimensional Abelian lattice gauge fields and $2 + 1$-dimensional staggered lattice fermions. The dependences of fermion condensate and graphene conductivity on the dielectric permittivity of substrate for different values of external magnetic field are calculated. It is found that magnetic field shifts insulator-semimetal phase transition to larger values of the dielectric permittivity of substrate. The phase diagram of graphene in external magnetic field is drawn.

D. L. Boyda; V. V. Braguta; S. N. Valgushev; M. I. Polikarpov; M. V. Ulybyshev

2013-08-13T23:59:59.000Z

122

Widget:ExternalLinkButton | Open Energy Information  

Open Energy Info (EERE)

Widget Widget Edit History Facebook icon Twitter icon » Widget:ExternalLinkButton Jump to: navigation, search Bootstrap styled button for launching links in a new browser tab (_blank) Use Widget:LinkButton for launching a link in the same target/browser tab. Parameters Include: action - url to link to value - button text class - add additional css classes, separate multiple classes with spaces (i.e.- btn-primary) style - add style elements, cannot change button color with this (optional) Examples Default Button Visit FWA {{#Widget:ExternalLinkButton | action=http://www.thefwa.com | value=Visit FWA}} Primary Button Visit FWA {{#Widget:ExternalLinkButton | action=http://www.thefwa.com | value=Visit FWA | class=btn-primary}} Retrieved from "http://en.openei.org/w/index.php?title=Widget:ExternalLinkButton&oldid=696084"

123

ARM - Publications: Science Team Meeting Documents: External Data Stream  

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

External Data Stream Review External Data Stream Review Wagener, Richard Brookhaven National Laboratory Ma, Lynn DOE/Brookhaven National Laboratory Gregory, Laurie Brookhaven National Laboratory Tichler, Joyce DOE/Brookhaven National Laboratory Horwedel, Betsy Oak Ridge National Laboratory Cialella, Alice Brookhaven National Laboratory In terms of data volume, about half the data in the ACRF archive were generated outside of the ARM program and collected by the eXternal Data Center (XDC) from external sources, processed to standard formats, documented, and forwarded to the archive. This constitutes a unique resource drawing many users to the archive, however it involves a significant effort and we must assure that the effort is spent where it provides the most benefit to the ACRF science mission. Here, we present a

124

External Surveillance of Geothermal Scale Deposits Employing Iridium-192  

Open Energy Info (EERE)

External Surveillance of Geothermal Scale Deposits Employing Iridium-192 External Surveillance of Geothermal Scale Deposits Employing Iridium-192 Radiography Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: External Surveillance of Geothermal Scale Deposits Employing Iridium-192 Radiography Abstract Iridium-192 radiography has been successfully tested as a technique for externally monitoring geothermal scale deposits in piping at the Brawley, CA geothermal field. This technique is applied to piping that handles flowing brine to provide in situ scale deposition observations without the disadvantage of dismantling piping for visual scale inspection. Exposure times and film orientations have been optimized to yield excellent agreement between radiographically detected scale thicknesses and actual

125

Structural Steel Attenuation of External Magnetic Fields in Buildings  

Science Conference Proceedings (OSTI)

This report investigates the passive attenuation of external power-frequency magnetic fields caused by structural steel members used in commercial building construction. This effect has not been considered in previous assessments of the field levels inside buildings.

2007-04-26T23:59:59.000Z

126

Externalizing and interpreting autonomic arousal in people diagnosed with autism  

E-Print Network (OSTI)

This research explores how externalization of physiological states helps to provide an awareness of hidden stressors through a home-based study, a lab-based study, and a school-based study in order to facilitate social ...

Lee, Jackie Chia-Hsun

2011-01-01T23:59:59.000Z

127

Estimating Externalities of Coal Fuel Cycles, Report 3  

SciTech Connect

The agreement between the US DOE and the EC established the specific objectives of the study: (a) to develop a methodological framework that uses existing data and models to quantify the external costs and benefits of energy; (b) to demonstrate the application of the framework to estimate the externalities of the coal, biomass, oil, natural gas, hydro, nuclear, photovoltaic, and wind fuel cycles (by agreement with the EC, the US addressed the first six of these); and (c) to identify major gaps in the availability of information to quantify impacts, damages, benefits, and externalities of fuel cycles; and to suggest priorities for future research. The main consideration in defining these objectives was a desire to have more information about externalities, and a better method for estimating them.

Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

1994-09-01T23:59:59.000Z

128

The External and Internal shrinkages in Aluminum Gravity Castings  

Science Conference Proceedings (OSTI)

Presentation Title, The External and Internal shrinkages in Aluminum Gravity Castings. Author(s), Fu-Yuan Hsu, Shin-Wei Wang, Huey-Jiuan Lin. On-Site ...

129

Mending fractured spaces : external legibility and seamlessness in interface design  

E-Print Network (OSTI)

This thesis presents External Legibility: a property of user interfaces that affects the ability of non-participating observers to understand the context of a user's actions. Claims of its value are supported with arguments ...

Zigelbaum, Jamie B

2008-01-01T23:59:59.000Z

130

Dynamic R&D Incentives with Network Externalities.  

E-Print Network (OSTI)

??This dissertation analyzes the impact of network externalities on R&D competition in an oligopolistic industry. It focuses on the level of R&D investments, the social… (more)

Cerquera, Daniel

2005-01-01T23:59:59.000Z

131

Three Essays on R&D Choice with Compatibilty Externality.  

E-Print Network (OSTI)

??This dissertation consists of the three essays on R&D project choice in the presence of compatibility externality.In the first essay we consider a R&D contest… (more)

Lee, Jaehee

2004-01-01T23:59:59.000Z

132

Climate System Response to External Forcings and Climate Change...  

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

Climate System Response to External Forcings and Climate Change Projections in CCSM4 Submitted by mkaczmar on March 8, 2012 - 11:03 Authors: Meehl, G.A., Washington, WM, Arblaster,...

133

Strategic inventory management of externally sourced medical devices  

E-Print Network (OSTI)

The purpose of this research was to determine inventory strategies for externally sourced medical devices. In the medical device industry, the desire for high levels of customer service often results in less than optimal ...

Hillstrom, Nichole L. (Nichole Leigh)

2013-01-01T23:59:59.000Z

134

IMAGINE beam line at HFIR welcomes first external user | ornl...  

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

IMAGINE beam line at HFIR welcomes first external user Neutrons help visiting scientist study ways to stay 'two steps ahead' of bacteria Alice Vrielink (right) of the University of...

135

Electricity generation and environmental externalities: Case studies, September 1995  

SciTech Connect

Electricity constitutes a critical input in sustaining the Nation`s economic growth and development and the well-being of its inhabitants. However, there are byproducts of electricity production that have an undesirable effect on the environment. Most of these are emissions introduced by the combustion of fossil fuels, which accounts for nearly 70 percent of the total electricity generated in the United States. The environmental impacts (or damages) caused by these emissions are labeled environmental ``externalities.`` Included in the generic term ``externality`` are benefits or costs resulting as an unintended byproduct of an economic activity that accrue to someone other than the parties involved in the activity. This report provides an overview of the economic foundation of externalities, the Federal and State regulatory approaches, and case studies of the impacts of the externality policies adopted by three States.

1995-09-28T23:59:59.000Z

136

JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms\\external_examiners_22_report JL.doc  

E-Print Network (OSTI)

JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms\\external_examiners_22_report JL.doc Comment consideration: #12;JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms

Davies, Christopher

137

Estimating Externalities of Hydro Fuel Cycles, Report 6  

DOE Green Energy (OSTI)

There are three major objectives of this hydropower study: (1) to implement the methodological concepts that were developed in the background document (ORNL/RFF 1992) as a means of estimating the external costs and benefits of fuel cycles and, by so doing, to demonstrate their application to the hydroelectric fuel cycle (different fuel cycles have unique characteristics that need to be addressed in different ways); (2) to develop, given the time and resources, the best range of estimates of externalities associated with hydroelectric projects, using two benchmark projects at two reference sites in the US; and (3) to assess the state of the information that is available to support the estimation of externalities associated with the hydroelectric fuel cycle and, by so doing, to assist in identifying gaps in knowledge and in setting future research agendas. The main consideration in defining these objectives was a desire to have more information about externalities and a better method for estimating them. As set forth in the agreement between the US and the EC, the study is explicitly and intentionally not directed at any one audience. This study is about a methodology for estimating externalities. It is not about how to use estimates of externalities in a particular policy context.

Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

1994-12-01T23:59:59.000Z

138

A Habit-Based Explanation of the Exchange Rate Risk Premium  

E-Print Network (OSTI)

This paper presents a model that reproduces the uncovered interest rate parity puzzle. Investors have preferences with external habits. Countercyclical risk premia and procyclical real interest rates arise endogenously. ...

Verdelhan, Adrien Frederic

139

EXTERNAL TERRORIST THREATS TO CIVILIAN AIRLINERS: A SUMMARY RISK ANALYSIS OF  

E-Print Network (OSTI)

, and Optimization », in : Algorithms For Robotic Motion and Manipulation, J.-P. Laumond and M. Overmars (Eds.), A.K

Wang, Hai

140

The Risk Assessment Information System  

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

Plant: Relative Risk Ranking Sites Plant: Relative Risk Ranking Sites These rankings are based on the EM-40 Release Site Methodology. Select a release site to receive information concerning that site. Please note that not all of the listed sites are linked to further information. Abandoned Nitric Acid Pipeline ACN Drum Yard Bear Creek Burial Grounds Bear Creek Contaminated Floodplain Soils Beta-4 Security Pits Building 81-10 Area Mercury Contaminated Soils Building 9201-2 Transformer and Capacitor Storage Area Building 9201-3 Coolant Salt Technology Facility Building 9201-4 Building 9201-4 External Pipes Building 9201-5E Northeast Yard Waste Storage Area Building 9202 East Pad Waste Storage Area Building 9204-2 West Yard Waste Storage Area Building 9206 Underground Tank Building 9215 West Pad Waste Storage Area

Note: This page contains sample records for the topic "risk external rs" 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

Monthly optimum inclination of glass cover and external reflector of a basin type solar still with internal and external reflector  

Science Conference Proceedings (OSTI)

In this report, we present a theoretical analysis of a basin type solar still with internal and external reflectors. The external reflector is a flat plate that extends from the back wall of the still, and can presumably be inclined forwards or backwards according to the month. We have theoretically predicted the daily amount of distillate produced by the still throughout the year, which varies according to the inclination angle of both the glass cover and the external reflector, at 30 N latitude. We found the optimum external reflector inclination for each month for a still with a glass cover inclination of 10-50 deg. The increase in the average daily amount of distillate throughout the year of a still with inclined external reflector with optimum inclination in addition to an internal reflector, compared to a conventional basin type still was predicted to be 29%, 43% or 67% when the glass cover inclination is 10 deg, 30 deg or 50 deg and the length of external reflector is half the still's length. (author)

Tanaka, Hiroshi [Mechanical Engineering Department, Kurume National College of Technology, Komorino, Kurume, Fukuoka 830-8555 (Japan)

2010-11-15T23:59:59.000Z

142

Applying environmental externalities to US Clean Coal Technologies for Asia. [Including external environmental costs  

SciTech Connect

The United States is well positioned to play an expanding role in meeting the energy technology demands of the Asian Pacific Basin, including Indonesia, Thailand, and the Republic of China (ROC-Taiwan). The US Department of Energy Clean Coal Technology (CCT) Demonstration Program provides a proving ground for innovative coal-related technologies that can be applied domestically and abroad. These innovative US CCTs are expected to satisfy increasingly stringent environmental requirements while substantially improving power generation efficiencies. They should also provide distinct advantages over conventional pulverized coal-fired combustors. Finally, they are expected to be competitive with other energy options currently being considered in the region. This paper presents potential technology scenarios for Indonesia, Thailand, and the ROC-Taiwan and considers an environmental cost-benefit approach employing a newly developed method of applying environmental externalities. Results suggest that the economic benefits from increased emission control can indeed be quantified and used in cost-benefit comparisons, and that US CCTs can be very cost effective in reducing emissions.

Szpunar, C.B.; Gillette, J.L.

1993-01-01T23:59:59.000Z

143

External Technical Review for Evaluation of System Level Modeling and  

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

for Evaluation of System Level Modeling for Evaluation of System Level Modeling and Simulation Tools in Support of Hanford Site Liquid Waste Process External Technical Review for Evaluation of System Level Modeling and Simulation Tools in Support of Hanford Site Liquid Waste Process Full Document and Summary Versions are available for download External Technical Review for Evaluation of System Level Modeling and Simulation Tools in Support of Hanford Site Liquid Waste Process Summary - System Level Modeling and Simulation Tools for Hanford More Documents & Publications Hanford Site C Tank Farm Meeting Summary - May 2009 System Planning for Low-Activity Waste at Hanford Hanford ETR Tank Waste Treatment and Immobilization Plant - Hanford Tank Waste Treatment and Immobilization Plant Technical Review - External

144

DOE Hydrogen and Fuel Cells Program: External Coordination  

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

Mission and Goals Mission and Goals Organization Chart and Contacts Background Budget Timeline Program Activities Advisory Panels External Coordination U.S. Department of Energy Search help Home > About > External Coordination Printable Version External Coordination The DOE Hydrogen and Fuel Cells Program leverages the vast capabilities and experience of its stakeholders through cooperative partnerships. Coordination of these activities will be one of the keys to achieving national hydrogen and fuel cell technology program goals. Federal Agencies/Interagency Task Force A number of federal agencies support hydrogen and fuel cell research, development, demonstration, and deployment activities. There are two interagency bodies that coordinate this work: The Hydrogen and Fuel Cell Interagency Working Group (IWG) is a

145

Externalities and electric power: an integrated assessment approach  

Science Conference Proceedings (OSTI)

This paper describes an integrated assessment approach for considering the options that electric utilities have to meet the anticipated demand for their power. The objective that this paper considers is one of meeting the demand for power, with an acceptable degree of reliability, at minimum cost. The total cost is the sum of the private cost of producing the electric power plus the external costs that result from its production. These external costs, or externalities, are effects on the well-being of third parties that producers and consumers of electric power do not take into account in their decisions. The external costs include many different types of effects such as illness, ecosystem damage, and road damage. The solution to the problem of minimizing total cost is addressed in two steps. The first step uses damage function methods to establish a common metric for the weights of the different objectives (i.e., external costs). The damage function analysis also reduces the dimensionality of the analysis in the second step, and identifies criteria to include in that analysis. The second step uses multi-criteria decision methods. This analysis includes the most important externalities that the damage function analysis identifies and, in addition, potentially important factors that can not be quantified reliably using damage function methods. An example of the latter are the damages from global climate change. The two-step method that this paper describes addresses many of the limitations of the damage function method and multi-criteria methods, that arise when they are used separately. This linked method can be used by electric utilities for their integrated resource planning. It can also be adapted to other applications.

Lee, R.

1995-12-31T23:59:59.000Z

146

External Faith-Based Environmental Stewardship Organizations | ENERGY STAR  

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

External Faith-Based Environmental Stewardship Organizations External Faith-Based Environmental Stewardship Organizations Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources

147

The damage function approach for estimating fuel cycle externalities  

DOE Green Energy (OSTI)

This paper discusses the methodology used in a study of fuel cycle externalities sponsored by the US Department of Energy and the Commission of the European Communities. The methodology is the damage function approach. This paper describes that approach and discusses its application and limitations. The fuel cycles addressed are those in which coal, biomass, oil, hydro, natural gas and uranium are used to generate electric power. The methodology is used to estimate the physical impacts of these fuel cycles on environmental resources and human health, and the external costs and benefits of these impacts.

Lee, R.

1993-10-01T23:59:59.000Z

148

Quark-gluon plasma in an external magnetic field  

E-Print Network (OSTI)

Using numerical simulations of lattice QCD we calculate the effect of an external magnetic field on the equation of state of the quark-gluon plasma. The results are obtained using a Taylor expansion of the pressure with respect to the magnetic field for the first time. The coefficients of the expansion are computed to second order in the magnetic field. Our setup for the external magnetic field avoids complications arising from toroidal boundary conditions, making a Taylor series expansion straightforward. This study is exploratory and is meant to serve as a proof of principle.

L. Levkova; C. DeTar

2013-09-04T23:59:59.000Z

149

COMMENTS OF DEPARTMENT OF ENERGY ON JUNE 2003 FOURTH EXTERNAL REVIEW DRAFT CRITERIA DOCUMENT FOR PARTICULATE MATTER  

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

COMMENTS OF DEPARTMENT OF ENERGY/OFFICE OF FOSSIL COMMENTS OF DEPARTMENT OF ENERGY/OFFICE OF FOSSIL ENERGY STAFF ON JUNE 2003 FOURTH EXTERNAL REVIEW DRAFT CRITERIA DOCUMENT FOR PARTICULATE MATTER Summary and Conclusions The Fourth External Review Draft Criteria Document for Particulate Matter (henceforth, the CD) is a very comprehensive review of both epidemiological and toxicological research into the health effects of particulate matter (PM) in ambient air. DOE/Office of Fossil Energy offers the following comments on it. OMB's "Principles and Procedures" memorandum to agencies states: "OIRA's [OMB's Office of Information and Regulatory Affairs] review also evaluates, on occasion in consultation with the Office of Science and Technology Policy, whether the agency has, in assessing exposure to a risk or an environmental

150

Figure 1. Current-sensing calibration circuit consisting of an auxiliary switch Qa and a precision sensing resistor Rs in parallel with a main  

E-Print Network (OSTI)

Using a power MOSFET with built-in current-sensing mirror ("SenseFet") CT Using a current transformer Qa and a precision sensing resistor Rs in parallel with a main power switch Q. The auxiliary switch-line Calibration of Lossless Current Sensing Yang Zhang, Regan Zane, Dragan Maksimovic Colorado Power Electronics

151

15-Year biochemical relapse free survival in clinical Stage T1-T3 prostate cancer following combined external beam radiotherapy and brachytherapy; Seattle experience  

SciTech Connect

Purpose: Long-term biochemical relapse-free survival (BRFS) rates in patients with clinical Stages T1-T3 prostate cancer continue to be scrutinized after treatment with external beam radiation therapy and brachytherapy. Methods and Materials: We report 15-year BRFS rates on 223 patients with clinically localized prostate cancer that were consecutively treated with I{sup 125} or Pd {sup 103} brachytherapy after 45-Gy neoadjuvant EBRT. Multivariate regression analysis was used to create a pretreatment clinical prognostic risk model using a modified American Society for Therapeutic Radiology and Oncology consensus definition (two consecutive serum prostate-specific antigen rises) as the outcome. Gleason scoring was performed by the pathologists at a community hospital. Time to biochemical failure was calculated and compared by using Kaplan-Meier plots. Results: Fifteen-year BRFS for the entire treatment group was 74%. BRFS using the Memorial Sloan-Kettering risk cohort analysis (95% confidence interval): low risk, 88%, intermediate risk 80%, and high risk 53%. Grouping by the risk classification described by D'Amico, the BRFS was: low risk 85.8%, intermediate risk 80.3%, and high risk 67.8% (p = 0.002). Conclusions: I{sup 125} or Pd{sup 103} brachytherapy combined with supplemental EBRT results in excellent 15-year biochemical control. Different risk group classification schemes lead to different BRFS results in the high-risk group cohorts.

Sylvester, John E. [Seattle Prostate Institute, Seattle, WA (United States)]. E-mail: johnsylvester@seattleprostate.com; Grimm, Peter D. [Seattle Prostate Institute, Seattle, WA (United States); Blasko, John C. [Seattle Prostate Institute, Seattle, WA (United States); Millar, Jeremy [Department Radiation Oncology, William Buckland Radiotherapy Centre, Melbourne (Australia); Orio, Peter F. [Department Radiation Oncology, University of Washington, Seattle, WA (United States); Skoglund, Scott [Seattle Prostate Institute, Seattle, WA (United States); Galbreath, Robert W. [Schiffler Cancer Center and Wheeling Jesuit University, Wheeling, WV (United States); Ohio University Eastern, St. Clairsville, OH (United States); Merrick, Gregory [Schiffler Cancer Center and Wheeling Jesuit University, Wheeling, WV (United States)

2007-01-01T23:59:59.000Z

152

Radiation of the blackbody in the external field  

E-Print Network (OSTI)

The blackbody is considered in the external general field. The additional coefficients of stimulated emission and absorption are introduced into the Einstein mechanism. Then, the generalized Planck formula is derived. The Einstein and Debye formula for the specific heat is possible to generalize. The application of the theory to the sonoluminescence, the relic radiation and solar spectrum is discussed.

Miroslav Pardy

2005-09-13T23:59:59.000Z

153

An External Evaluation of Power Markets in Poland  

Science Conference Proceedings (OSTI)

The Polish Power Grid Company (PSE SA) requested an independent, external evaluation of the current power market designs in Poland to better ensure an efficient and reliable technical infrastructure serving all market players. This report provides such an evaluation, making recommendations for continued improvement in market design and market monitoring.

2001-12-18T23:59:59.000Z

154

External Business Environment Analysis with RSS/Web  

Science Conference Proceedings (OSTI)

The purpose of this article is to introduce the system that analyzes external business environment utilizing RSS or web news. The proposed system will visualize positioning of companies in an industry. The positioning analysis shows the company priority ... Keywords: RSS, Web, Five Forces, Business environment, competitor

Shigeaki Matsumoto; Takatoshi Kitano; Shigeru Hosono

2008-07-01T23:59:59.000Z

155

Thermal Reservoir coupled to External Field and Quantum Dissipation  

E-Print Network (OSTI)

In the framework of the Caldeira-Leggett model of dissipative quantum mechanics, we investigate the effects of the interaction of the thermal reservoir with an external field. In particular, we discuss how the interaction modifies the conservative dynamics of the central particle, and the mechanism of dissipation. We briefly comment on possible observable consequencies.

Fabrizio Illuminati; Marco Patriarca

1992-07-29T23:59:59.000Z

156

JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms\\external_examiners_ug_report JL.doc  

E-Print Network (OSTI)

JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms://go.warwick.ac.uk/externalexaminer/ #12;JDM, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms, 4.6.07 M:\\Quality\\Teaching Quality Team\\Carla Stafford\\External Examiners Forms

Davies, Christopher

157

Risk Management Tool Attributes:  

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

- Tools & SMEs - Tools & SMEs Outline for Breakout Session TOOLS 1. Types of Tools a. Risk Management - Database & Reports, risk register, risk forms, risk tracking & monitoring, basis of estimate, action item tracking, historical record of risks & changes, configuration control, enterprise-wide, metrics, risk performance index, risk checklist, graphical display, management reporting (various levels), risk communications b. Risk Analysis i. Cost, ii. budgets, funding, cash-flow analysis, iii. Schedule iv. tailoring categories v. Integrated Cost & Schedule vi. Project phase analysis; organization ownership & joint planning c. Risk Knowledge and Lessons Learned Database i. Enterprise-wide ii. Job/owner-specific iii. Workshops - project specific, risk management,

158

NREL Partnerships with External Organizations (Residential Buildings Group)  

Open Energy Info (EERE)

Partnerships with External Organizations (Residential Buildings Group) Partnerships with External Organizations (Residential Buildings Group) Dataset Summary Description This spreadsheet contains a list of all the companies with which NREL's Residential Buildings Group has formed a partnership. The two types of partnership included in this spreadsheet are: Incubator and Test & Evaluation. This list was generated in April 2011. Source NREL Date Released April 07th, 2011 (3 years ago) Date Updated Unknown Keywords incubator NREL partnerships Test & Evaluation Data application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon members_and_partners_-_nrel_resbldgs_04072011.xlsx (xlsx, 29.8 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Other or unspecified, see optional comment below

159

Help:External SPARQL integration | Open Energy Information  

Open Energy Info (EERE)

External SPARQL integration External SPARQL integration Jump to: navigation, search Integrating with Reegle logo.png OpenEI is engaged in an ongoing linked open data collaboration with Reegle[1]. This page serves to document a few of the initial integration techniques. For the purposes of this demonstration, we'll be working with the country of Brazil. The following SPARQL query was used to detect if a country within OpenEI had a corresponding country profiles: {{#sparql: PREFIX reegle: PREFIX country: PREFIX geonames: SELECT ?countryName ?profile WHERE { SERVICE { country:{{#var:Iso3166Alpha2}} geonames:name ?countryName . country:{{#var:Iso3166Alpha2}} reegle:profile ?profile .

160

Department of Energy Laboratory Accreditation for External Dosimetry  

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

DOE-STD-1095-2011 January 2011 DOE STANDARD DEPARTMENT OF ENERGY LABORATORY ACCREDITATION FOR EXTERNAL DOSIMETRY U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. ii DOE-STD-1095-2011 This document is available on the Department of Energy Office of Health, Safety and Security Approved DOE Technical Standards Web Site at www.hss.energy.gov/nuclearsafety/ns/techstds/ DOE-STD-1095-2011 iii FOREWORD The Department of Energy (DOE) implemented the DOE Laboratory Accreditation Program (DOELAP) for external dosimetry in 1987. The radiobioassay portion of DOELAP is described in standard DOE-STD-1112-98, Department of Energy Laboratory Accreditation Program for

Note: This page contains sample records for the topic "risk external rs" 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

Magnetic response to applied electrostatic field in external magnetic field  

E-Print Network (OSTI)

We show, within QED and other possible nonlinear theories, that a static charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the charge, depends on its size and is parallel to the external field, provided the charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electrostatic field. Referring to a simple example of a spherically-symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space, the pattern of lines of force is depicted, both inside and outside the charge, which resembles that of a standard solenoid of classical magnetostatics.

T. C. Adorno; D. M. Gitman; A. E. Shabad

2013-11-16T23:59:59.000Z

162

RS-Historian  

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

REQUEST FOR RECORDS DISPOSITION AUTHORITY REQUEST FOR RECORDS DISPOSITION AUTHORITY L E A V E B U N K (NARA us0 onty) (sue lnsrrrrctions on r e v e r s r . ~ Nji37734 - 72 -/ NATIONAL ARCKIVES and RECORDS ADMIMSTRAT~ON DATE RECEIVED \.YASHINGTON, DC 20408 1 FROM (Agency or eslnMlshrnent) /I -6 -9 / NOTlFlCATION TO AGENCY Department o f Energy ( l i e a d q u a r t e r s ) - 2 MLUOR SUBD~VISION O f f i c e o f A d m i n i s t r a t i o n & Human Resource Management 3 MlNOR S u B O l V l s l o ~ O f f i c e o f E x e c u t i v e S e c r e t a r i a t , H i s t o r y D i v i s i o n N DATE A Maria Vignone I hereby certify that I am authorized to act for this and that the records roposed for disposal on the P of this agency or wil not be needed after the retention the General Accounting Office, under the provisions o Agenaes, &) is not required; a is attached; or a has been requested.

163

RS-WEAPONS Records  

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

~ ~ o c tnstructions o n r e v e r s e ) ' T O NATIONAL ARCHIVES and RECORDS ADMINISTRATION (NIR) \$'ASHINGTON. DC 20108 ' 1 FROM (Agency or establishment) U. S . De~artment of E ~ r n v 2 MAJOR SUBDIVISION 3 MINOR SUBDlVlSlOtJ I hereby certify that I am authorized to act for this agency in matters pertaining to the disposition of its records and that the records roposed for disposal on the attached 38 page(s) are not noJv needed for the business of t h ~ s agency or wi f not be needed after the retention erlods s ecified; and that wrritten concurrence from ,4eencies, P P the General A c c o u ~ t ~ n g Offlce, u n d e r the p r o v ~ s i o n s o Title 8 o the G A O M a n u a l for Guidance of Federal L t A V E BLANK (NARA use only) 'JOB NUMBER h / / - 4 3 C t ~ 7 6 -- 3 - DATE Z - 2 3 - 7 6 NOTIFICATIONTO AGENCY

164

March, 2010 NIFS Administrative Council External Peer Review Committee  

E-Print Network (OSTI)

21 2010 3 March, 2010 NIFS Administrative Council External Peer Review Committee NIFS Peer DEMO LHD V NIFS-HEAT W Y Li MHD Er2O3 Li Li-Pb FlibeF-BeF2 #12;10 V 4 FlibeF-BeF2 been invoked to enhance the electron current in V3Ga. In the NIFS engineering research, the main goals

Ito, Atsushi

165

Risk Assessment Technical Expert Working Group (RWG)Conference Call  

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

May 6, 2010 May 6, 2010 Risk Assessment Technical Expert Working Group (RWG)Conference Call Minutes, May 6, 2010 Risk Assessment Information Notice (IN): HSS provided the draft IN to safety basis experts from SNL, Y-12 and PNNL for their review and comment. Their comments were addressed and the IN is back into concurrence. 2. DNFSB Brief: HSS is coordinated with the RWG and DNFSB to schedule a DNFSB brief in June. 3. Risk Assessment Training: The National Training Center is presenting its risk assessment overview course May 18-20 at DOE headquarters. HS-20 is planning to discuss DOE's nuclear safety risk assessment study and plans for policy and guidance development at the end of the course. 4. External Risk Study: Data collection has been completed at NASA, NEI, NASA, and FDA. HS-20

166

Hanford External Dosimetry Technical Basis Manual PNL-MA-842  

SciTech Connect

The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. Rev. 0 marks the first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database.

Rathbone, Bruce A.

2005-02-25T23:59:59.000Z

167

Oil Prices, External Income, and Growth: Lessons from Jordan  

E-Print Network (OSTI)

This paper extends the long-run growth model of Esfahani et al. (2012a) to a labour exporting country that receives large in‡ows of external income – the sum of remittances, FDI and general government transfers – from major oil exporting economies. The theoretical model predicts real oil prices to be one of the main long-run drivers of real output. Using quarterly data between 1979 and 2009 on core macroeconomic variables for Jordan and a number of key foreign variables, we identify two long-run relationships: an output equation as predicted by theory and an equation linking foreign and domestic in‡ation rates. It is shown that real output in the long run is shaped by (i) oil prices through their impact on external income and in turn on capital accumulation, and (ii) technological transfers through foreign output. The empirical analysis of the paper con…rms the hypothesis that a large share of Jordan’s output volatility can be associated with ‡uctuations in net income received from abroad (arising from oil price shocks). External factors, however, cannot be relied upon to provide similar growth stimuli in the future, and therefore it will be important to diversify the sources of growth in order to achieve a high and sustained level of income.

Kamiar Mohaddes A; Mehdi Raissi B

2013-01-01T23:59:59.000Z

168

Time Evolution in the external field problem of Quantum Electrodynamics  

E-Print Network (OSTI)

A general problem of quantum field theories is the fact that the free vacuum and the vacuum for an interacting theory belong to different, non-equivalent representations of the canonical (anti-)commutation relations. In the external field problem of QED, we encounter this problem in the form that the Dirac time evolution for an external field with non-vanishing magnetic components will not satisfy the Shale-Stinespring condition, known to be necessary and sufficient for the existence of an implementation on the fermionic Fock space. Therefore, a second quantization of the time evolution in the usual way is impossible. In this thesis, we present several rigorous approaches to QED with time-dependent, external fields and analyze in what sense a time evolution can exist in the second quantized theory. We study different constructions of the fermionic Fock space and prove their equivalence. We study and compare the results of Deckert et. al. (2010), where the time evolution is realized as unitary transformations ...

Lazarovici, Dustin

2013-01-01T23:59:59.000Z

169

Solar Energy Research Enclave R.S. Anand, M.K. Das, S.S.K. Iyer, S.K. Mishra,  

E-Print Network (OSTI)

Solar Energy Research Enclave (SERE) R.S. Anand, M.K. Das, S.S.K. Iyer, S.K. Mishra, A.Singh, P for solar energy ·Solar energy received by earth 160,000 TW; 16 TW is enough for world's consumption (2006-PV DAY Off-grid Solar-PV (islanded) DAY Other NIGHT Other renewable Energy STORAGE #12;Photovoltaic

Srivastava, Kumar Vaibhav

170

The Mutual Interaction between External Rossby Waves and Thermal Forcing: The Subpolar Regions  

Science Conference Proceedings (OSTI)

The authors hypothesize a simple feedback mechanism between external Rossby waves and diabatic heating from convection. This mechanism could explain the large amplitude that external Rossby waves attain as they propagate to mid- and high ...

Isidoro Orlanski; Silvina Solman

2010-06-01T23:59:59.000Z

171

External Prestressed Carbon Fiber-Reinforced Polymer Straps for Shear Enhancement of Concrete  

E-Print Network (OSTI)

, nonlaminated, carbon fiber-reinforced polymer (CFRP) straps as external shear reinforcement for concrete. Experiments were carried out on an unstrengthened control beam and beams strengthened with external CFRP straps. It was found that the ultimate load...

Lees, Janet M.; Winistörfer, A. U.; Meier, U.

2002-10-15T23:59:59.000Z

172

Detecting and Attributing External Influences on the Climate System: A Review of Recent Advances  

Science Conference Proceedings (OSTI)

This paper reviews recent research that assesses evidence for the detection of anthropogenic and natural external influences on the climate. Externally driven climate change has been detected by a number of investigators in independent data ...

2005-05-01T23:59:59.000Z

173

Hanford External Dosimetry Technical Basis Manual PNL-MA-842  

SciTech Connect

The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program (HEDP) which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee (HPDAC) which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document.

Rathbone, Bruce A.

2009-08-28T23:59:59.000Z

174

Time Evolution in the external field problem of Quantum Electrodynamics  

E-Print Network (OSTI)

A general problem of quantum field theories is the fact that the free vacuum and the vacuum for an interacting theory belong to different, non-equivalent representations of the canonical (anti-)commutation relations. In the external field problem of QED, we encounter this problem in the form that the Dirac time evolution for an external field with non-vanishing magnetic components will not satisfy the Shale-Stinespring condition, known to be necessary and sufficient for the existence of an implementation on the fermionic Fock space. Therefore, a second quantization of the time evolution in the usual way is impossible. In this thesis, we present several rigorous approaches to QED with time-dependent, external fields and analyze in what sense a time evolution can exist in the second quantized theory. We study different constructions of the fermionic Fock space and prove their equivalence. We study and compare the results of Deckert et. al. (2010), where the time evolution is realized as unitary transformations between time-varying Fock spaces, with those of Langmann and Mickelsson (1996), who construct a "renormalization" for the time evolution and present a method to fix the phase of the second quantized scattering operator by parallel transport in a principle fibre bundle over the restricted, general linear group acting on the fermionic Fock space. We provide rigorous proof for the fact that the second quantization by parallel transport preserves causality. These findings seem to refute claims made in Scharf (1995) that the phase of the second quantized S-matrix is essentially determined by the requirement of causality. We propose a simple solution to the problem of gauge anomalies in the procedure of Langmann and Mickelsson, showing that the second quantization of the scattering operator can be made gauge-invariant by using a suitable class of renormalizations.

Dustin Lazarovici

2013-10-07T23:59:59.000Z

175

Environmental externalities: A survey of state commission actions  

SciTech Connect

Awareness of the environmental consequences of electricity production have led many state public utility commissions (PUC) to consider these externalities formally in their regulation of utilities. At the request of NARUC`s Energy Conservation staff subcommittee, the Lawrence Berkeley Laboratory conducted a survey to identify the extent and range of PUC approaches to this issue; responses were obtained from PUC staff in 49 states and the District of Columbia. The study should be viewed as providing a ``snapshot`` of regulatory developments in an area that is evolving rapidly. 16 refs.

Cohen, S.D.; Eto, J.H. [National Association of Regulatory Utility Commissioners, Washington, DC (United States); Goldman, C.A. [Lawrence Berkeley Lab., CA (United States); Beldock, J. [USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (United States). Office of Buildings and Community Systems; Crandall, G. [MSB Associates, Middleton, WI (United States)

1990-05-01T23:59:59.000Z

176

Environmental externalities: A survey of state commission actions  

Science Conference Proceedings (OSTI)

Awareness of the environmental consequences of electricity production have led many state public utility commissions (PUC) to consider these externalities formally in their regulation of utilities. At the request of NARUC's Energy Conservation staff subcommittee, the Lawrence Berkeley Laboratory conducted a survey to identify the extent and range of PUC approaches to this issue; responses were obtained from PUC staff in 49 states and the District of Columbia. The study should be viewed as providing a snapshot'' of regulatory developments in an area that is evolving rapidly. 16 refs.

Cohen, S.D.; Eto, J.H. (National Association of Regulatory Utility Commissioners, Washington, DC (United States)); Goldman, C.A. (Lawrence Berkeley Lab., CA (United States)); Beldock, J. (USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (United States). Office of Buildings and Community Systems); Crandall, G. (MSB Associates, Middleton, WI (United States))

1990-05-01T23:59:59.000Z

177

Role of External Flow and Frame Invariance in Stochastic Thermodynamics  

E-Print Network (OSTI)

For configurational changes of soft matter systems affected or caused by external hydrodynamic flow, we identify applied work, exchanged heat, and entropy change on the level of a single trajectory. These expressions guarantee invariance of stochastic thermodynamics under a change of frame of reference. As criterion for equilibrium \\textit{vs.} nonequilibrium, zero \\textit{vs.} nonzero applied work replaces detailed balance \\textit{vs.} nonvanishing currents, since both latter criteria are shown to depend on the frame of reference. Our results are illustrated quantitatively by calculating the large deviation function for the entropy production of a dumbbell in shear flow.

Thomas Speck; Jakob Mehl; Udo Seifert

2007-12-03T23:59:59.000Z

178

Quantum field theory in static external potentials and Hadamard states  

E-Print Network (OSTI)

We prove that the ground state for the Dirac equation on Minkowski space in static, smooth external potentials satisfies the Hadamard condition. We show that it follows from a condition on the support of the Fourier transform of the corresponding positive frequency solution. Using a Krein space formalism, we establish an analogous result in the Klein-Gordon case for a wide class of smooth potentials. Finally, we investigate overcritical potentials, i.e. which admit no ground states. It turns out, that numerous Hadamard states can be constructed by mimicking the construction of ground states, but this leads to a naturally distinguished one only under more restrictive assumptions on the potentials.

Micha? Wrochna

2011-08-15T23:59:59.000Z

179

Risk Management RM  

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

This tool is the process of continuous and iterative identification and control of project risks and opportunities. Risks can be technical, financial, or programmatic. The goal for the risk...

180

Risk and robust optimization  

E-Print Network (OSTI)

This thesis develops and explores the connections between risk theory and robust optimization. Specifically, we show that there is a one-to-one correspondence between a class of risk measures known as coherent risk measures ...

Brown, David Benjamin, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

Optimal replacement period of a two-unit system with failure rate interaction and external shocks  

Science Conference Proceedings (OSTI)

In this article, a periodical replacement model for a two-unit system which is both subjected to failure rate interaction and external shocks will be presented. Without external shocks, each unit 1, whenever it fails, will act as an interior shock to ... Keywords: External shocks, Failure rate interaction, Periodical replacement policy, Two-unit system

Min-Tsai Lai; Ying-Chang Chen

2008-01-01T23:59:59.000Z

182

Externally Occulted Terrestrial Planet Finder Coronagraph: Simulations and Sensitivities  

E-Print Network (OSTI)

A multitude of coronagraphic techniques for the space-based direct detection and characterization of exo-solar terrestrial planets are actively being pursued by the astronomical community. Typical coronagraphs have internal shaped focal plane and/or pupil plane occulting masks which block and/or diffract starlight thereby increasing the planet's contrast with respect to its parent star. Past studies have shown that any internal technique is limited by the ability to sense and control amplitude, phase (wavefront) and polarization to exquisite levels - necessitating stressing optical requirements. An alternative and promising technique is to place a starshade, i.e. external occulter, at some distance in front of the telescope. This starshade suppresses most of the starlight before entering the telescope - relaxing optical requirements to that of a more conventional telescope. While an old technique it has been recently been advanced by the recognition that circularly symmetric graded apodizers can be well approximated by shaped binary occulting masks. Indeed optimal shapes have been designed that can achieve smaller inner working angles than conventional coronagraphs and yet have high effective throughput allowing smaller aperture telescopes to achieve the same coronagraphic resolution and similar sensitivity as larger ones. Herein we report on our ongoing modeling, simulation and optimization of external occulters and show sensitivity results with respect to number and shape errors of petals, spectral passband, accuracy of Fresnel propagation, and show results for both filled and segmented aperture telescopes and discuss acquisition and sensing of the occulter's location relative to the telescope.

Richard G. Lyon; Sally Heap; Amy Lo; Webster Cash; Glenn D. Starkman; Robert J. Vanderbei; N. Jeremy Kasdin; Craig J. Copi

2007-12-07T23:59:59.000Z

183

Hanford External Dosimetry Technical Basis Manual PNL-MA-842  

SciTech Connect

The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at the U.S. Department of Energy (DOE) Hanford site. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with requirements of 10 CFR 835, the DOE Laboratory Accreditation Program, the DOE Richland Operations Office, DOE Office of River Protection, DOE Pacific Northwest Office of Science, and Hanford’s DOE contractors. The dosimetry system is operated by the Pacific Northwest National Laboratory (PNNL) Hanford External Dosimetry Program which provides dosimetry services to PNNL and all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since its inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving significant changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Maintenance and distribution of controlled hard copies of the manual by PNNL was discontinued beginning with Revision 0.2.

Rathbone, Bruce A.

2010-04-01T23:59:59.000Z

184

Hanford External Dosimetry Technical Basis Manual PNL-MA-842  

SciTech Connect

The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at the U.S. Department of Energy (DOE) Hanford site. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with requirements of 10 CFR 835, the DOE Laboratory Accreditation Program, the DOE Richland Operations Office, DOE Office of River Protection, DOE Pacific Northwest Office of Science, and Hanford’s DOE contractors. The dosimetry system is operated by the Pacific Northwest National Laboratory (PNNL) Hanford External Dosimetry Program which provides dosimetry services to PNNL and all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since its inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving significant changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Maintenance and distribution of controlled hard copies of the manual by PNNL was discontinued beginning with Revision 0.2.

Rathbone, Bruce A.

2011-04-04T23:59:59.000Z

185

Hanford External Dosimetry Technical Basis Manual PNL-MA-842  

SciTech Connect

The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program (HEDP) which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee (HPDAC) which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. Rev. 0 marks the first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database. Revision numbers that are whole numbers reflect major revisions typically involving changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Revision Log: Rev. 0 (2/25/2005) Major revision and expansion. Rev. 0.1 (3/12/2007) Minor revision. Updated Chapters 5, 6 and 9 to reflect change in default ring calibration factor used in HEDP dose calculation software. Factor changed from 1.5 to 2.0 beginning January 1, 2007. Pages on which changes were made are as follows: 5.23, 5.69, 5.78, 5.80, 5.82, 6.3, 6.5, 6.29, 9.2.

Rathbone, Bruce A.

2007-03-12T23:59:59.000Z

186

Prediction of External Corrosion for Steel Cylinders-2001 Report  

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

64 64 Prediction of External Corrosion for Steel Cylinders-2001 Report Rick Schmoyer and B. F. Lyon This report has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831; prices available from 615-576-8401, FTS 626-8401. Available to the public from the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy,

187

Prediction of External Corrosion for Steel Cylinders-2002 Report  

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

43 43 Prediction of External Corrosion for Steel Cylinders-2002 Report Rick Schmoyer and B. F. Lyon This report has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831; prices available from 615-576-8401, FTS 626-8401. Available to the public from the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy,

188

Hanford External Dosimetry Technical Basis Manual PNL-MA-842  

SciTech Connect

The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the dosimetry system in a manner intended to help ensure defensibility of the dose of record at Hanford and to demonstrate compliance with 10 CFR 835, DOELAP, DOE-RL, ORP, PNSO, and Hanford contractor requirements. The dosimetry system is operated by PNNL’s Hanford External Dosimetry Program (HEDP) which provides dosimetry services to all Hanford contractors. The primary users of this manual are DOE and DOE contractors at Hanford using the dosimetry services of PNNL. Development and maintenance of this manual is funded directly by DOE and DOE contractors. Its contents have been reviewed and approved by DOE and DOE contractors at Hanford through the Hanford Personnel Dosimetry Advisory Committee (HPDAC) which is chartered and chaired by DOE-RL and serves as means of coordinating dosimetry practices across contractors at Hanford. This manual was established in 1996. Since its inception, it has been revised many times and maintained by PNNL as a controlled document with controlled distribution. The first revision to be released through PNNL’s Electronic Records & Information Capture Architecture (ERICA) database was designated Revision 0. Revision numbers that are whole numbers reflect major revisions typically involving significant changes to all chapters in the document. Revision numbers that include a decimal fraction reflect minor revisions, usually restricted to selected chapters or selected pages in the document. Maintenance and distribution of controlled hard copies of the manual by PNNL was discontinued beginning with Revision 0.2. Revision Log: Rev. 0 (2/25/2005) Major revision and expansion. Rev. 0.1 (3/12/2007) Updated Chapters 5, 6 and 9 to reflect change in default ring calibration factor used in HEDP dose calculation software. Factor changed from 1.5 to 2.0 beginning January 1, 2007. Pages on which changes were made are as follows: 5.23, 5.69, 5.78, 5.80, 5.82, 6.3, 6.5, 6.29, and 9.2. Rev 0.2 (8/28/2009) Updated Chapters 3, 5, 6, 8 and 9. Chapters 6 and 8 were significantly expanded. References in the Preface and Chapters 1, 2, 4, and 7 were updated to reflect updates to DOE documents. Approved by HPDAC on 6/2/2009. Rev 1.0 (1/1/2010) Major revision. Updated all chapters to reflect the Hanford site wide implementation on January 1, 2010 of new DOE requirements for occupational radiation protection. The new requirements are given in the June 8, 2007 amendment to 10 CFR 835 Occupational Radiation Protection (Federal Register, June 8, 2007. Title 10 Part 835. U.S., Code of Federal Regulations, Vol. 72, No. 110, 31904-31941). Revision 1.0 to the manual replaces ICRP 26 dosimetry concepts and terminology with ICRP 60 dosimetry concepts and terminology and replaces external dose conversion factors from ICRP 51 with those from ICRP 74 for use in measurement of operational quantities with dosimeters. Descriptions of dose algorithms and dosimeter response characteristics, and field performance were updated to reflect changes in the neutron quality factors used in the measurement of operational quantities.

Rathbone, Bruce A.

2010-01-01T23:59:59.000Z

189

Externally Occulted Terrestrial Planet Finder Coronagraph: Simulations and Sensitivities  

E-Print Network (OSTI)

A multitude of coronagraphic techniques for the space-based direct detection and characterization of exo-solar terrestrial planets are actively being pursued by the astronomical community. Typical coronagraphs have internal shaped focal plane and/or pupil plane occulting masks which block and/or diffract starlight thereby increasing the planet's contrast with respect to its parent star. Past studies have shown that any internal technique is limited by the ability to sense and control amplitude, phase (wavefront) and polarization to exquisite levels - necessitating stressing optical requirements. An alternative and promising technique is to place a starshade, i.e. external occulter, at some distance in front of the telescope. This starshade suppresses most of the starlight before entering the telescope - relaxing optical requirements to that of a more conventional telescope. While an old technique it has been recently been advanced by the recognition that circularly symmetric graded apodizers can be well appro...

Lyon, Richard G; Lo, Amy; Cash, Webster; Starkman, Glenn D; Vanderbei, Robert J; Kasdin, N Jeremy; Copi, Craig J

2007-01-01T23:59:59.000Z

190

Hydraulic External Pre-Isolator System for LIGO  

E-Print Network (OSTI)

The Hydraulic External Pre-Isolator (HEPI) is the first 6 degrees of freedom active seismic isolation system implemented at the Laser Interferometer Gravitational Wave Observatory (LIGO). Implementation was first completed at the LIGO Livingston Observatory (LLO) prior to LIGO's 5th science run, successfully cutting down the disturbance seen by LLO's suspended optics in the two most prominent seismic disturbance bands, the microseism (0.1-0.3Hz) and the anthropogenic (1-3Hz) bands, by a factor of a few to tens. The improvement in seismic isolation contributed directly to LLO's much improved duty cycle of 66.7% and LIGO's triple coincident duty cycle of 53%. We report the design, control scheme, and isolation performance of HEPI at LLO in this paper. Aided with this success, funding for incorporating HEPI into the LIGO Hanford Observatory was approved and installation is currently underway.

S. Wen; R. Mittleman; K. Mason; J. Giaime; R. Abbott; J. Kern; B. O'Reilly; R. Bork; M. Hammond; C. Hardham; B. Lantz; W. Hua; D. Coyne; G. Traylor; H. Overmier; T. Evans; J. Hanson; O. Spjeld; M. Macinnis; K. Mailand; D. Sellers; K. Carter; P. Sarin

2013-09-23T23:59:59.000Z

191

Hydraulic External Pre-Isolator System for LIGO  

E-Print Network (OSTI)

The Hydraulic External Pre-Isolator (HEPI) is the first 6 degrees of freedom active seismic isolation system implemented at the Laser Interferometer Gravitational Wave Observatory (LIGO). Implementation was first completed at the LIGO Livingston Observatory (LLO) prior to LIGO's 5th science run, successfully cutting down the disturbance seen by LLO's suspended optics in the two most prominent seismic disturbance bands, the microseism (0.1-0.3Hz) and the anthropogenic (1-3Hz) bands, by a factor of a few to tens. The improvement in seismic isolation contributed directly to LLO's much improved duty cycle of 66.7% and LIGO's triple coincident duty cycle of 53%. We report the design, control scheme, and isolation performance of HEPI at LLO in this paper. Aided with this success, funding for incorporating HEPI into the LIGO Hanford Observatory was approved and installation is currently underway.

Wen, S; Mason, K; Giaime, J; Abbott, R; Kern, J; O'Reilly, B; Bork, R; Hammond, M; Hardham, C; Lantz, B; Hua, W; Coyne, D; Traylor, G; Overmier, H; Evans, T; Hanson, J; Spjeld, O; Macinnis, M; Mailand, K; Sellers, D; Carter, K; Sarin, P

2013-01-01T23:59:59.000Z

192

Estimating externalities of biomass fuel cycles, Report 7  

DOE Green Energy (OSTI)

This report documents the analysis of the biomass fuel cycle, in which biomass is combusted to produce electricity. The major objectives of this study were: (1) to implement the methodological concepts which were developed in the Background Document (ORNL/RFF 1992) as a means of estimating the external costs and benefits of fuel cycles, and by so doing, to demonstrate their application to the biomass fuel cycle; (2) to develop, given the time and resources, a range of estimates of marginal (i.e., the additional or incremental) damages and benefits associated with selected impact-pathways from a new wood-fired power plant, using a representative benchmark technology, at two reference sites in the US; and (3) to assess the state of the information available to support energy decision making and the estimation of externalities, and by so doing, to assist in identifying gaps in knowledge and in setting future research agendas. The demonstration of methods, modeling procedures, and use of scientific information was the most important objective of this study. It provides an illustrative example for those who will, in the future, undertake studies of actual energy options and sites. As in most studies, a more comprehensive analysis could have been completed had budget constraints not been as severe. Particularly affected were the air and water transport modeling, estimation of ecological impacts, and economic valuation. However, the most important objective of the study was to demonstrate methods, as a detailed example for future studies. Thus, having severe budget constraints was appropriate from the standpoint that these studies could also face similar constraints. Consequently, an important result of this study is an indication of what can be done in such studies, rather than the specific numerical estimates themselves.

Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

1998-01-01T23:59:59.000Z

193

Exergetic, thermal, and externalities analyses of a cogeneration plant  

SciTech Connect

A thermodynamic study of an 88.4 MW cogeneration plant located in the United States is presented in this paper. The feedstock for this actual plant is culm, the waste left from anthracite coal mining. Before combustion in circulating fluidized bed boilers, the usable carbon within the culm is separated from the indigenous rock. The rock and ash waste from the combustion process fill adjacent land previously scared by strip mining. Trees and grass are planted in these areas as part of a land reclamation program. Analyses based on the first and second laws of thermodynamics using actual operating data are first presented to acquaint the reader with the plant's components and operation. Using emission and other relevant environmental data from the plant, all externalities study is outlined that estimates the plant's effect on the local population. The results show that the plant's cycle performs with a coefficient of utilization of 29% and all approximate exergetic efficiency of 34.5%. In order to increase these values, recommended improvements to the plant are noted. In addition, the externality costs associated with the estimated SO{sub 2} and NOx discharge from the culm fed plant are lower (85-95%) than those associated with a similarly sized coal fed plant. The plant's cycle efficiencies are lower than those associated with more modern technologies; such as all integrated gas turbine combined cycle. However, given the abundant, inexpensive supply of feedstock located adjacent to the plant and the environmental benefit of removing culm banks, the plant's existing operation is unique from an economical and environmental viewpoint.

Bailey, M.B.; Curtiss, P.; Blanton, P.H.; McBrayer, T.B. [Rochester Institute of Technology, Rochester, NY (United States). Dept. of Mechanical Engineering

2006-02-15T23:59:59.000Z

194

Percentage of Cancer Volume in Biopsy Cores Is Prognostic for Prostate Cancer Death and Overall Survival in Patients Treated With Dose-Escalated External Beam Radiotherapy  

SciTech Connect

Purpose: To investigate the prognostic utility of the percentage of cancer volume (PCV) in needle biopsy specimens for prostate cancer patients treated with dose-escalated external beam radiotherapy. Methods and Materials: The outcomes were analyzed for 599 men treated for localized prostate cancer with external beam radiotherapy to a minimal planning target volume dose of 75 Gy (range, 75-79.2). We assessed the effect of PCV and the pretreatment and treatment-related factors on the freedom from biochemical failure, freedom from metastasis, cause-specific survival, and overall survival. Results: The median number of biopsy cores was 7 (interquartile range, 6-12), median PCV was 10% (interquartile range, 2.5-25%), and median follow-up was 62 months. The PCV correlated with the National Comprehensive Cancer Network risk group and individual risk features, including T stage, prostate-specific antigen level, Gleason score, and percentage of positive biopsy cores. On log-rank analysis, the PCV stratified by quartile was prognostic for all endpoints, including overall survival. In addition, the PCV was a stronger prognostic factor than the percentage of positive biopsy cores when the two metrics were analyzed together. On multivariate analysis, the PCV predicted a worse outcome for all endpoints, including freedom from biochemical failure, (hazard ratio, 1.9; p = .0035), freedom from metastasis (hazard ratio, 1.7, p = .09), cause-specific survival (hazard ratio, 3.9, p = .014), and overall survival (hazard ratio, 1.8, p = .02). Conclusions: For patients treated with dose-escalated external beam radiotherapy, the volume of cancer in the biopsy specimen adds prognostic value for clinically relevant endpoints, particularly in intermediate- and high-risk patients. Although the PCV determination is more arduous than the percentage of positive biopsy cores, it provides superior risk stratification.

Vance, Sean M.; Stenmark, Matthew H.; Blas, Kevin; Halverson, Schulyer [Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan (United States); Hamstra, Daniel A., E-mail: dhamm@umich.edu [Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan (United States); Feng, Felix Y. [Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan (United States); Department of Radiation Oncology, Veterans Affairs Medical Center, Ann Arbor, Michigan (United States)

2012-07-01T23:59:59.000Z

195

The Risk Assessment Information System  

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

Risk Assessment Documents Risk Assessment Documents ORNL RA Graphic Results ORNL Baseline Risk Assessment Results ORNL Screening Risk Assessment Results ORNL Other Risk Assessment Results ORNL RA Graphic Results WAG 2 Residential Landuse Sediment - Total Risk Sediment - Cesium 137 Risk Sediment - Cobalt 60 Risk Surface Water - Total Hazard Surface Water - Total Risk Surface Water - Strontium 90 Risk Surface Water - Tritium Risk Recreational Landuse Sediment - Total Risk Sediment - Cesium 137 Risk Sediment - Cobalt 60 Risk Surface Water - Total Hazard Surface Water - Total Risk Surface Water - Strontium 90 Risk Surface Water - Tritium Risk Recreational Landuse (No Fish) Surface Water - Total Hazard Surface Water - Total Risk Surface Water - Strontium 90 Risk Surface Water - Tritium Risk Industrial Landuse

196

LPP Risk Management Plan  

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

History and Process History and Process Slide 2 M E Environmental Management Environmental Management History â—¦ Current Baseline Process Overview â—¦ Identification â—¦ Simulation â—¦ Management Successes & Challenges Slide 3 M E Environmental Management Environmental Management Current Baseline Risks â—¦ 1 Week Risk Summit held week of August 4 th , 2008 Broad representation from all levels of Isotek, DOE, PTC, and outside consultants Focused on risk and opportunity identification Included risk description, assumptions, and triggers No quantification or analysis No restrictions, constraints, or filtering HQ provided facilitator Prescribed format and capture methodology Slide 4 M E Environmental Management Environmental Management Current Baseline Risks â—¦ Risk Summit Results

197

Consistency of external dosimetry in epidemiologic studies of nuclear workers  

Science Conference Proceedings (OSTI)

To make the best use of available epidemiologic data in assessing risks from exposure to low-level radiation, it is important that biases and uncertainties in estimated doses be understood and documented. With this understanding, analyses of mortality data can be strengthened by including the use of correction factors where judged appropriate, excluding portions of the data where uncertainty in dose estimates is judged to be very large, and conducting sensitivity analyses to examine the effect of alternative assumptions about dosimetry errors and biases on results. It is hoped that the pooling of data from several epidemiologic studies and improved understanding of dosimetry will lead to better estimates of radiation risks. 10 refs., 4 tabs.

Fix, J.J.; Gilbert, E.S.

1991-10-01T23:59:59.000Z

198

On charged particle equilibrium violation in external photon fields  

SciTech Connect

Purpose: In a recent paper by Bouchard et al.[Med. Phys. 36(10), 4654-4663 (2009)], a theoretical model of quality correction factors for idealistic so-called plan-class specific reference (PCSR) fields was proposed. The reasoning was founded on the definition of PCSR fields made earlier by Alfonso et al.[Med. Phys. 35(11), 5179-5186 (2008)], requiring the beam to achieve charged particle equilibrium (CPE), in a time-averaged sense, in the reference medium. The relation obtained by Bouchard et al. was derived using Fano's theorem (1954) which states that if CPE is established in a given medium, the dose is independent of point-to-point density variations. A potential misconception on the achievability of the condition required by Fano (1954) might be responsible for false practical conclusions, both in the definition of PCSR fields as well as the theoretical model of quality correction factor. Methods: In this paper, the practical achievability of CPE in external beams is treated in detail. The fact that this condition is not achievable in single or composite deliveries is illustrated by an intuitive method and is also formally demonstrated. Conclusions: Fano's theorem is not applicable in external beam radiation dosimetry without (virtually) removing attenuation effects, and therefore, the relation conditionally defined by Bouchard et al. (2009) cannot be valid in practice. A definition of PCSR fields in the recent formalism for nonstandard beams proposed by Alfonso et al. (2008) should be modified, revising the criterion of CPE condition. The authors propose reconsidering the terminology used to describe standard and nonstandard beams. The authors argue that quality correction factors of intensity modulated radiation therapy PCSR fields (i.e., k{sub Q{sub p{sub c{sub s{sub r,Q}{sup f{sub p}{sub c}{sub s}{sub r},f{sub r}{sub e}{sub f}}}}}}) could be unity under ideal conditions, but it is concluded that further investigation is necessary to confirm that hypothesis.

Bouchard, Hugo; Seuntjens, Jan; Palmans, Hugo [Centre hospitalier de l'Universite de Montreal (CHUM), 1560 Sherbrooke est, Montreal, Quebec H2L 4M1 (Canada); Medical Physics Unit, McGill University, Montreal, Quebec H3G 1A4 (Canada); Acoustics and Ionising Radiation Team, National Physical Laboratory, Hampton Road, Teddington TW11 0LW (United Kingdom)

2012-03-15T23:59:59.000Z

199

Alternative Fuels Data Center: No E85-Compatible, External Fuel Delivery  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

No E85-Compatible, No E85-Compatible, External Fuel Delivery Hose Has Been Submitted for Testing (November 2008) to someone by E-mail Share Alternative Fuels Data Center: No E85-Compatible, External Fuel Delivery Hose Has Been Submitted for Testing (November 2008) on Facebook Tweet about Alternative Fuels Data Center: No E85-Compatible, External Fuel Delivery Hose Has Been Submitted for Testing (November 2008) on Twitter Bookmark Alternative Fuels Data Center: No E85-Compatible, External Fuel Delivery Hose Has Been Submitted for Testing (November 2008) on Google Bookmark Alternative Fuels Data Center: No E85-Compatible, External Fuel Delivery Hose Has Been Submitted for Testing (November 2008) on Delicious Rank Alternative Fuels Data Center: No E85-Compatible, External Fuel

200

Cerenkov emission induced by external beam radiation stimulates molecular fluorescence  

SciTech Connect

Purpose: Cerenkov emission is induced when a charged particle moves faster than the speed of light in a given medium. Both x-ray photons and electrons produce optical Cerenkov photons in everyday radiation therapy of tissue; yet, this phenomenon has never been fully documented. This study quantifies the emissions and also demonstrates that the Cerenkov emission can excite a fluorophore, protoporphyrin IX (PpIX), embedded in biological phantoms. Methods: In this study, Cerenkov emission induced by radiation from a clinical linear accelerator is investigated. Biological mimicking phantoms were irradiated with x-ray photons, with energies of 6 or 18 MV, or electrons at energies 6, 9, 12, 15, or 18 MeV. The Cerenkov emission and the induced molecular fluorescence were detected by a camera or a spectrometer equipped with a fiber optic cable. Results: It is shown that both x-ray photons and electrons, at MeV energies, produce optical Cerenkov photons in tissue mimicking media. Furthermore, we demonstrate that the Cerenkov emission can excite a fluorophore, protoporphyrin IX (PpIX), embedded in biological phantoms. Conclusions: The results here indicate that molecular fluorescence monitoring during external beam radiotherapy is possible.

Axelsson, Johan; Davis, Scott C.; Gladstone, David J.; Pogue, Brian W. [Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755 (United States); Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire 03766 (United States); Thayer School of Engineering and Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755 (United States)

2011-07-15T23:59:59.000Z

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201

COLLIMATION AND CONFINEMENT OF MAGNETIC JETS BY EXTERNAL MEDIA  

Science Conference Proceedings (OSTI)

We study the collimation of a highly magnetized jet by a surrounding cocoon that forms as a result of the interaction of the jet with the external medium. We show that in regions where the jet is well confined by the cocoon, current-driven instabilities should develop over timescales shorter than the expansion time of the jet's head. We speculate that these instabilities would give rise to complete magnetic field destruction, whereby the jet undergoes a transition from high to low sigma above the collimation zone. Using this assumption, we construct a self-consistent model for the evolution of the jet-cocoon system in an ambient medium of arbitrary density profile. We apply the model to jet breakout in long gamma-ray bursts (GRBs) and show that the jet is highly collimated inside the envelope of the progenitor star and is likely to remain confined well after breakout. We speculate that this strong confinement may provide a channel for magnetic field conversion in GRB outflows, whereby the hot, low-sigma jet section thereby produced is the source of the photospheric emission observed in many bursts.

Levinson, Amir [School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978 (Israel)] [School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978 (Israel); Begelman, Mitchell C., E-mail: Levinson@wise.tau.ac.il, E-mail: mitch@jila.colorado.edu [JILA, University of Colorado and National Institute of Standards and Technology, 440 UCB, Boulder, CO 80309-0440 (United States)

2013-02-20T23:59:59.000Z

202

CHF Enhancement by Vessel Coating for External Reactor Vessel Cooling  

SciTech Connect

In-vessel retention (IVR) is a key severe accident management (SAM) strategy that has been adopted by some operating nuclear power plants and advanced light water reactors (ALWRs). One viable means for IVR is the method of external reactor vessel cooling (ERVC) by flooding of the reactor cavity during a severe accident. As part of a joint Korean – United States International Nuclear Energy Research Initiative (K-INERI), an experimental study has been conducted to investigate the viability of using an appropriate vessel coating to enhance the critical heat flux (CHF) limits during ERVC. Toward this end, transient quenching and steady-state boiling experiments were performed in the SBLB (Subscale Boundary Layer Boiling) facility at Penn State using test vessels with micro-porous aluminum coatings. Local boiling curves and CHF limits were obtained in these experiments. When compared to the corresponding data without coatings, substantial enhancement in the local CHF limits for the case with surface coatings was observed. Results of the steady state boiling experiments showed that micro-porous aluminum coatings were very durable. Even after many cycles of steady state boiling, the vessel coatings remained rather intact, with no apparent changes in color or structure. Moreover, the heat transfer performance of the coatings was found to be highly desirable with an appreciable CHF enhancement in all locations on the vessel outer surface but with very little effect of aging.

Fan-Bill Cheung; Joy L. Rempe

2004-06-01T23:59:59.000Z

203

Late biological effects from internal and external exposure  

Science Conference Proceedings (OSTI)

Information on late biological effects of radiation was obtained from the long-term medical followup of a small population of Marshallese accidentally exposed to radioactive fallout from a thermonuclear test in 1954. Endocrine data are compatible with a sequence of nonstochastic radiation effects. The ingestion of radioisotopes of iodine produced clinical thyroid hypofunction in children, biochemical evidence of thyroid dysfunction in some adults, thyroid adenomatous module formation, and, as a possible indirect effect of thyroid damage, at least two cases of pituitary adenoma. In contrast, the only evidence of a stochastic effect has been a real increase in thyroid cancers among the more highly exposed people of Rongelap, none of whom have evidence of residual disease. While three nonthyroidal cancers which are known to be inducible in humans by external irradiation have been documented in the exposed population, three similar cancers have occurred in an unexposed comparison population of Marshallese. Nonstochastic effects of radiation exposure may be common but subtle. In the Marshallese experience the morbidity of delayed nonstochastic effects far exceeds that of the stochastic. 20 refs., 5 figs., 1 tab.

Adams, W.H.

1985-01-01T23:59:59.000Z

204

External detection and measurement of inhaled radionuclides using thermoluminescent dosimeters  

E-Print Network (OSTI)

Many radiation detection programs use bio-assays, whole-body counters, or air sampling to estimate internal doses. This study examines the possibility of using a common external thermoluminescent dosimeter (TLD) badge as a device for detecting inhaled radionuclides through radiation those radionuclides emit which escape the body. The three common radionuclides chosen for modeling due to their varying decay modes and use or production in the nuclear industry were Cs-137, U-238, and Sr-90. These three radionuclides were modeled for biological and radiological removal in the dynamic systems modeling program of STELLA II and modeled for TLD dose per organ in the geometry and radiation simulation program of MCNP. The results show that none of the nuclides in the study can be detected at air concentrations below regulatory limits for acute inhalation exposures. To achieve a detectable dose from an 8-hour work exposure, with a 90-day wait until the TLD is read, the airborne concentrations for the inhalation classes that produced the most dose per Bq would be 37.9 kBq/m3, 146 MBq/m3, and 1.67 MBq/m3 for Cs-137, U-238, and Sr-90, respectively.

Prause, Christopher Alvin

2006-12-01T23:59:59.000Z

205

Energy consumption of workstations and external devices in school of business and information technology.  

E-Print Network (OSTI)

??The purpose of this thesis was to measure energy consumption of workstations and external devices in School of Business and Information Technology and search for… (more)

Koret, Jere

2012-01-01T23:59:59.000Z

206

Comparative analysis of monetary estimates of external environmental costs associated with combustion of fossil fuels  

SciTech Connect

Public utility commissions in a number of states have begun to explicitly treat costs of environmental externalities in the resource planning and acquisition process (Cohen et al. 1990). This paper compares ten different estimates and regulatory determinations of external environmental costs associated with fossil fuel combustion, using consistent assumptions about combustion efficiency, emissions factors, and resource costs. This consistent comparison is useful because it makes explicit the effects of various assumptions. This paper uses the results of the comparison to illustrate pitfalls in calculation of external environmental costs, and to derive lessons for design of policies to incorporate these externalities into resource planning. 38 refs., 2 figs., 10 tabs.

Koomey, J.

1990-07-01T23:59:59.000Z

207

Risk Assess - updated  

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

Software Development Risk Assessment Software Development Risk Assessment Note: The purpose of this prompt list is to provide project managers with a tool for identifying and planning for potential project risks. It is process-based and supports the framework established by the DOE Software Engineering Methodology. It will be used within the stage exit process as an additional tool to ensure that the project manager has identified and is managing known risk factors. Additional detailed information describes the various risk factors and how to score them. Performing a risk assessment is an important step in being prepared for potential problems that can occur within any software project. During the risk assessment, if a potential risk is identified, a solution or plan of action should be developed. (A problem analyzed and planned

208

Evaluation of severe accident risks, Peach Bottom, Unit 2: Main report  

Science Conference Proceedings (OSTI)

In support of the Nuclear Regulatory Commission's (NRC's) assessment of the risk from severe accidents at commercial nuclear power plants in the US reported NUREG-1150, the Severe Accident Risk Reduction Program (SARRP) has completed a revised calculation of the risk to the general public from severe accidents at the Peach Bottom Atomic Power Station, Unit 2. This power plant, located in southeastern Pennsylvania, is operated by the Philadelphia Electric Company. The emphasis in this risk analysis was not on determining a so-called'' point estimate of risk. Rather, it was to determine the distribution of risk, and to discover the uncertainties that account for the breadth of this distribution. Off-site risk initiated by events both internal and external to the power station were assessed. 39 refs., 174 figs., 133 tabs.

Payne, A.C.; Breeding, R.J.; Jow, H.N.; Shiver, A.W. (Sandia National Labs., Albuquerque, NM (USA)); Helton, J.C. (Arizona State Univ., Tempe, AZ (USA)); Smith, L.N. (Science Applications International Corp., Albuquerque, NM (USA))

1990-12-01T23:59:59.000Z

209

Consistency of external dosimetry in epidemiologic studies of nuclear workers  

SciTech Connect

Efforts are underway to pool data from epidemiologic studies of nuclear workers to obtain more precise estimates of radiation risk than would be possible from any single study. The International Agency for Research on Cancer (IARC) is coordinating combined analyses of data from studies in the United States, Canada, and the United Kingdom. In the US, the Department of Energy (DOE) has established the Comprehensive Epidemiologic Data Resource (CEDR) to provide investigators an opportunity to analyze data from several DOE laboratories. IARC investigators, in collaboration with those conducting the individual studies, have developed a dosimetry protocol for the international combined analyses.

Fix, J.J.; Gilbert, E.S.

1992-05-01T23:59:59.000Z

210

Screening Risk Evaluation methodology  

Science Conference Proceedings (OSTI)

The Screening Risk Evaluation (SRE) Guidance document is a set of guidelines provided for the uniform implementation of SREs performed on D&D facilities. These guidelines are designed specifically for the completion of the second (semi-quantitative screening) phase of the D&D Risk-Based Process. The SRE Guidance produces screening risk scores reflecting levels of risk through the use of risk ranking indices. Five types of possible risk are calculated from the SRE: current releases, worker exposures, future releases, physical hazards, and criticality. The Current Release Index (CRI) calculates the risk to human health and the environment from ongoing or probable releases within a one year time period. The Worker Exposure Index (WEI) calculates the risk to workers, occupants, and visitors in D&D facilities of contaminant exposure. The Future Release Index (FRI) calculates the risk of future releases of contaminants, after one year, to human health and the environment. The Physical Hazards Index (PHI) calculates the risk-to human health due to factors other than that of contaminants. The index of Criticality is approached as a modifying factor to the entire SRE, due to the fact that criticality issues are strictly regulated under DOE. Screening risk results will be tabulated in matrix form and Total Risk will be calculated (weighted equation) to produce a score on which to base early action recommendations. Other recommendations from the screening risk scores will be made based either on individual index scores or from reweighted Total Risk calculations. All recommendations based on the SRE will be made based on a combination of screening risk scores, decision drivers, and other considerations, determined on a project by project basis. The SRE is the first and most important step in the overall D&D project level decision making process.

Hopper, K.M. [Midwest Technical, Inc., Oak Ridge, TN (United States)

1994-06-01T23:59:59.000Z

211

The Risk Assessment Information System  

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

Technical Memorandum , Part II. Screening Level Risk Assessment 92-225-161-49 K-33 Cooling Towers screening risk assessments (2) K-770 sites screening risk assessment (9...

212

External Beam Radiotherapy for Colon Cancer: Patterns of Care  

SciTech Connect

Purpose: Despite its common and well characterized use in other gastrointestinal malignancies, little is known about radiotherapy (RT) use in nonmetastatic colon cancer in the United States. To address the paucity of data regarding RT use in colon cancer management, we examined the RT patterns of care in this patient population. Methods and Materials: Patients with nonmetastatic colon cancer, diagnosed between 1988 and 2005, were identified in the Surveillance, Epidemiology, and End Results (SEER) database. Univariate and multivariate methods were used to identify factors associated with RT use. Results: On univariate analysis, tumor location, age, sex, race, T stage, N stage, and geographic location were each associated with differences in RT use (all p < 0.01). In general, younger patients, male patients, and patients with more advanced disease were more likely to receive RT. On multivariate analysis, tumor location, age, gender, T and N stage, time of diagnosis and geographic location were significantly associated with RT use (all p < 0.001). Race, however, was not associated with RT use. On multivariate analysis, patients diagnosed in 1988 were 2.5 times more likely to receive RT than those diagnosed in 2005 (p = 0.001). Temporal changes in RT use reflect a responsiveness to evolving evidence related to the therapeutic benefits of adjuvant RT. Conclusions: External beam RT is infrequently used for colon cancer, and its use varies according to patient and tumor characteristics. RT use has declined markedly since the late 1980s; however, it continues to be used for nonmetastatic disease in a highly individualized manner.

Dunn, Emily F., E-mail: dunn@humonc.wisc.ed [Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI (United States); Kozak, Kevin R. [Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI (United States); Moody, John S. [Division of Radiation Oncology, Moses Cone Regional Cancer Center, Greensboro, NC (United States)

2010-04-15T23:59:59.000Z

213

Use of External Beam Radiotherapy Is Associated With Reduced Incidence of Second Primary Head and Neck Cancer: A SEER Database Analysis  

SciTech Connect

Purpose: Patients with head and neck cancer have a significant risk of developing a second primary cancer of the head and neck. We hypothesized that treatment with external beam radiotherapy (RT) might reduce this risk, because RT can eradicate occult foci of second head and neck cancer (HNCA). Methods and Materials: The data of patients with Surveillance, Epidemiology, and End Results Historic Stage A localized squamous cell carcinoma of the oral cavity, larynx, and pharynx were queried using the Surveillance, Epidemiology, and End Results database. For patients treated with or without RT, the incidence of second HNCA was determined and compared using the log-rank method. Cox proportional hazards analysis was performed for each site, evaluating the influence of covariates on the risk of second HNCA. Results: Between 1973 and 1997, 27,985 patients were entered with localized HNCA. Of these patients, 44% had received RT and 56% had not. The 15-year incidence of second HNCA was 7.7% with RT vs. 10.5% without RT (hazard ratio 0.71, p <0.0001). The effect of RT was more profound in patients diagnosed between 1988 and 1997 (hazard ratio 0.53, p <0.0001) and those with pharynx primaries (hazard ratio 0.47, p <0.0001). On multivariate analysis, RT was associated with a reduced risk of second HNCA for pharynx (p <0.0001) and larynx (p = 0.04) tumors. For oral cavity primaries, RT was associated with an increased risk of second HNCA in patients treated before 1988 (p <0.001), but had no influence on patients treated between 1988 and 1997 (p = 0.91). Conclusion: For localized HNCA, RT is associated with a reduced incidence of second HNCA. These observations are consistent with the eradication of microscopic foci of second HNCA with external beam RT.

Rusthoven, Kyle [Department of Radiation Oncology, University of Colorado Health Sciences Center, Aurora, CO (United States); Chen Changhu [Department of Radiation Oncology, University of Colorado Health Sciences Center, Aurora, CO (United States)], E-mail: Changhu.Chen@uchsc.edu; Raben, David; Kavanagh, Brian [Department of Radiation Oncology, University of Colorado Health Sciences Center, Aurora, CO (United States)

2008-05-01T23:59:59.000Z

214

Application of Externally Gapped Surge Arresters: A Review of the State of the Art  

Science Conference Proceedings (OSTI)

A literature study has been conducted to compile a technical update on the state of the art of applying externally gapped transmission line arresters. Special attention is given to the coordination of the external gap with respect to the line insulation to ensure reliable arrester operation under lightning conditions while maintaining its integrity during switching surges in case of a failed surge arrester.

2011-12-23T23:59:59.000Z

215

Phase lagging model of brain response to external stimuli-modeling of single action potential  

Science Conference Proceedings (OSTI)

In this paper we detail a phase lagging model of brain response to external stimuli. The model is derived using the basic laws of physics like conservation of energy law. This model eliminates the paradox of instantaneous propagation of the action potential ... Keywords: Action potential, Brain response, External stimuli, Phase lagging model, Single neuron

Karthik Seetharaman; Hamidreza Namazi; Vladimir V. Kulsih

2012-08-01T23:59:59.000Z

216

Intelligent control aeration and external carbon addition for improving nitrogen removal  

Science Conference Proceedings (OSTI)

Fuzzy logic can in several ways be applied to improve the control of the activated sludge system. In this paper, fuzzy logic based control strategies for external carbon flow in the anoxic zone and dissolved oxygen (DO) concentration in the aerobic zone ... Keywords: Energy saving, External carbon addition, Fuzzy control, Nitrogen removal, Predenitrification process

M. Yong; P. Yong-zhen; W. Xiao-lian; W. Shu-ying

2006-06-01T23:59:59.000Z

217

The interrelationships between corporations' dependence on external financing, information disclosure and cost of capital  

Science Conference Proceedings (OSTI)

The paper tests the relationship between corporations' dependence on external financing and their level of corporate information disclosure, and the relationship between the cost of capital and the level of corporate information disclosure in the ... Keywords: Taiwan, cost of capital, debt, e-finance, electronic finance, equity capital, external financing, information disclosure, integrated circuits, website information

Fu-Ju Yang; Chien-Ting Han; Her-Jiun Sheu

2008-12-01T23:59:59.000Z

218

In Situ Validation of a Correction for Time-Lag and Bias Errors in Vaisala RS80-H Radiosonde Humidity Measurements  

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

In Situ Validation of a Correction for Time-Lag and In Situ Validation of a Correction for Time-Lag and Bias Errors in Vaisala RS80-H Radiosonde Humidity Measurements L. M. Miloshevich National Center for Atmospheric Research Boulder, Colorado H. Vömel and S. J. Oltmans National Oceanic and Atmospheric Administration Boulder, Colorado A. Paukkunen Vaisala Oy Helsinki, Finland Introduction Radiosonde relative humidity (RH) measurements are fundamentally important to Atmospheric Radiation Measurement (ARM) Program goals because they are used in a wide variety of both operational and research applications, including initialization of numerical models and evaluation of model results, validation of remote-sensor water vapor retrievals, construction of water vapor climatologies and studies of climate trends, parameterization of cloud processes, and as input to

219

Environmental externalities: An ASEAN application to coal-based power generation. Extract  

Science Conference Proceedings (OSTI)

Significant benefits to human health that result from emissions control programs may justify the costs of pollution control policies. Many scientists, economists, risk analysts, and policymakers believe that comparisons of the benefits with the costs of pollution control demonstrate that the US stationary source, air emissions control program is justified. This justification is based upon pronounced benefits to human health, especially from controlling suspended particulates and sulfur compounds. Market decisions are usually made on the basis of a consideration of traditional costs such as capital, operating and maintenance, fuel costs, and fixed charges. Social costs, which could be significant, are not incorporated explicitly into such decisions. These social costs could result in a net reduction in the welfare of individuals, and of society as a whole. Because these social costs and their effects are not represented in the price of energy, individual have no way to explicitly value them; hence, they remain unaccounted for in market decisions. By accounting for external costs, the selection of energy sources and production of energy products can lead to and equilibrium, where the total cost of energy and energy products, together with resulting social costs, can be brought to an economic minimum. The concept of an air emissions control program is of interest to the ASEAN countries (Brunei, Indonesia, Malaysia, the Philippines, Singapore, and Thailand) and their governments, especially if such a program could be justified in cost-benefit terms and shown to be directly applicable to ASEAN conditions. It is the intent of the effort described herein to demonstrate that technical options are available to control emissions from coal-based, electric power plants and that that costs of these options may be justified in cost-benefit terms.

Szpunar, C.B.; Gillette, J.L.

1992-06-01T23:59:59.000Z

220

Issues and methods in incorporating environmental externalities into the integrated resource planning process  

Science Conference Proceedings (OSTI)

This report is a review of current practices and policies in considering environmental externalities in the integrated resource planning and performance based regulation (IRP/PBR) process. The following issues are presented and examined: What are the pros and cons of treating environmental externalities in the IRP process? How are potential future environmental regulations being treated? Are externalities being qualitatively or quantitatively considered, or monetized? Are offsets being allowed? How are externality policies being coordinated among different levels and branches of governments? Should environmental externalities be considered in dispatching a utility`s existing resources? What are the procedures for addressing uncertainty in incorporating environmental externalities into IRP? How are externalities valued? What are other approaches to addressing environmental externalities. This report describes seven major approaches for addressing environmental externalities in the IRP process: qualitative treatment, weighting and ranking, cost of control, damage function, percentage adders, monetization by emission, and multiattribute trade-off analysis. The discussion includes a taxonomy of the full range of alternative methods for addressing environmental externalities, a summary of state PUC actions, the role of state laws, the debate on environmental adders, and the choice of methodologies. In addition, this report characterizes the interests of stakeholders such as the electric industry, fuel suppliers, energy consumers, governmental agencies, public interest groups, consultants, and others. It appears that the views, positions, and interests of these stakeholders are affected by their perceptions of the potential impacts on their economic interests or the viability of their position on environmental policy, by the societal perspective they take, and by the orientation of the analysts toward market competition and their respective accumulated expertise.

Fang, J.M.; Galen, P.S.

1994-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

Microsoft Word - FY09 Work Plan_External.doc  

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

sector sector NSTB National SCADA Test Bed U.S. Department of Energy Office of Electricity Delivery and Energy Reliability DOE/OE National SCADA Test Bed Fiscal Year 2009 Work Plan (REVISED 07/31/2009) A plan of work for the National Laboratories that form the National SCADA Test Bed: Argonne National Laboratory Idaho National Laboratory Oak Ridge National Laboratory Pacific Northwest National Laboratory Sandia National Laboratories Fiscal Year 2 0 0 9 Work Plan NSTB FY 2009 Work Plan i FOREWORD The Department of Energy (DOE) Office of Electricity Delivery and Energy Reliability (OE) created the National SCADA Test Bed (NSTB) program with the mission to reduce the risk of energy disruptions due to cyber attack on control systems. So far the program's projects have

222

ICT Supply Chain Risk Management  

Science Conference Proceedings (OSTI)

... ICT Supply Chain Risk Management Manager's Forum ... ICT Supply Chain Risk Management National Institute of Standards and Technology Page 6. ...

2013-06-04T23:59:59.000Z

223

Sociocultural definitions of risk  

SciTech Connect

Public constituencies frequently are criticized by technical experts as being irrational in response to low-probability risks. This presentation argued that most people are concerned with a variety of risk attributes other than probability and that is rather irrational to exclude these from the definition and analysis of technological risk. Risk communication, which is at the heart of the right-to-know concept, is described as the creation of shared meaning rather than the mere transmission of information. A case study of utilities, public utility commissions, and public interest groups illustrates how the diversity of institutional cultures in modern society leads to problems for the creation of shared meanings in establishing trust, distributing liability, and obtaining consent to risk. This holistic approach to risk analysis is most appropriate under conditions of high uncertainty and/or decision stakes. 1 fig., 5 tabs.

Rayner, S.

1990-10-01T23:59:59.000Z

224

DUF6 Environmental Risks  

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

Risks A discussion of the potential environmental impacts associated with depleted uranium handling or processing facilities. Impacts Considered in the PEIS Depleted uranium...

225

Risk Management Tool Attributes:  

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

of cost - input cost distribution; expert input on distribution selection g. time-phase input h. scenarios 2. Outputs a. Distributions b. Graphics c. Key risks (tornado) d....

226

Information and issues related to the quantification of environmental externalities for new powerplants  

SciTech Connect

This report provides background information for the Bonneville Power Administration (Bonneville) in its efforts to quantify the environmental externalities associated with new electricity resources. A more detailed companion document has been provided to Bonneville for internal use. This report defines what is meant by externalities, particularly in the context of electricity resources. It outlines the economics issues associated with assigning an economic value, such as cents per kilowatt hour, to the residual environmental impacts of electricity powerplants. It examines two generic theoretical approaches for estimating such values and discusses their advantages and disadvantages. The report also addresses the need to include relevant stages in the fuel cycle in estimating the costs of externalities. The fuel-cycle concept is defined and its importance is discussed. The approaches used by several states to quantify externalities are described. A review of the valuation efforts of various states and utilities indicates that three states have actually developed methodologies for assigning economic values to externalities. Information that Bonneville may need to request from resource developers to quantify externalities is discussed, and an appendix presents suggested forms for obtaining the required information. Summary information also is presented on models for analyzing the dispersion of powerplant plumes for the purpose of estimating environmental externality costs. 34 refs., 1 fig., 4 tabs.

Lee, A.D.; Callaway, J.M.; Glantz, C.S.; Baechler, M.C.; Foley, L.O.

1990-10-01T23:59:59.000Z

227

On the role of external combustion engines for on-site power generation  

SciTech Connect

Stationary external combustion engines are prime movers that have potential for becoming viable power generation machines in both the residential/commercial and industrial sectors. These large engines are being developed with the capability to employ alternative and/or non-scarce fuels. Energy sources under consideration include coal, coal derived liquids and gases, low-grade petroleum residues, biomass, and municipal wastes. Advantages of external combustion engines relative to conventional prime movers are: greater fuel efficiency, reduced environmental impacts (noise and emissions), and a high degree of fuel flexibility. External combustion engines include steam turbines, Stirling cycle engines, and externally-fired Brayton gas turbines. Among the various applications for external combustion engines are: total energy plants, ICES, industrial cogeneration, small municipal generating plants, and pumping stations. It is not necessary for all the heat supplied an external combustion engine to come from a single source. Various non-coal sources that can be used either independently or integrated with others to supply heat to external combustion engines include solar energy, municipal wastes, biomass, and geothermal. Stirling engine based systems are described. The development of the Stirling engine is briefly discussed. (MCW)

Holtz, R.E.; Uherka, K.L.

1979-01-01T23:59:59.000Z

228

The Risk Assessment Information System  

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

Graphic Results Graphic Results Baseline Risk Assessment Results Screening Risk Assessment Results Other Risk Assessment Results Graphic Results K-25 Groundwater Residential Landuse Bedrock Wells - Total Hazard (range: 1-30) Bedrock Wells - Total Hazard (range: 0.1 - 1) Bedrock Wells - Total Risk Bedrock Wells - Arsenic Risk Bedrock Wells - Dichloroethene, 1,1- Risk Bedrock Wells - Trichloroethene Risk Unconsolidated Wells - Total Hazard (range: 1-150) Unconsolidated Wells - Total Hazard (range: 0.1 - 1) Unconsolidated Wells - Total Risk (range:10-4 - 1) Unconsolidated Wells - Total Risk (range:10-6 - 10-4) Unconsolidated Wells - Arsenic Risk Unconsolidated Wells - Trichloroethene Risk ORNL WAG 2 Residential Landuse Sediment - Total Risk Sediment - Cesium 137 Risk Sediment - Cobalt 60 Risk

229

Risk and risk management in software projects: A reassessment  

Science Conference Proceedings (OSTI)

Controlling risk in software projects is considered to be a major contributor to project success. This paper reconsiders the status of risk and risk management in the literature and practice. The analysis is supported by a study of risk practices in ... Keywords: Project management, Risk management, Software projects, Threat management

Paul L. Bannerman

2008-12-01T23:59:59.000Z

230

EM Announces New Director of Office of External Affairs | Department of  

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

Announces New Director of Office of External Affairs Announces New Director of Office of External Affairs EM Announces New Director of Office of External Affairs May 7, 2012 - 12:00pm Addthis WASHINGTON, D.C. - EM has announced that Paul Seidler has joined EM as the Director of the Office of External Affairs. In this position, Seidler will be responsible for leading EM's public affairs and intergovernmental relations programs. He has over 25 years experience in communications, government relations and program management for nuclear programs. "I am very pleased that someone with Paul's knowledge, experience and commitment to our mission has joined the EM program," said David Huizenga, Senior Advisor for EM. "His leadership will help us continue providing relevant and timely information to our stakeholders."

231

HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External  

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

HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External Power Supplies HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External Power Supplies Hewlett-Packard Company (HP) appreciates the opportunity to comment on the new DOE rulemaking for Battery Chargers and External Power Supplies. Thank you for taking the time to speak with us. HP believes that existing voluntary Market Access Requirements, such as EPEAT and ENERGY STAR, are the most effective mechanism for improving energy efficiency of IT products, but we understand the approach of regulating mandatory minimum efficiencies to address poor performing products. HP_Ex_Parte_Memo.pdf More Documents & Publications HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External

232

A low-power, high-bandwidth LDO voltage regulator with no external capacitor  

E-Print Network (OSTI)

A low-dropout (LDO) voltage regulator for low-power applications is designed without an external capacitor for compensation. The regulator has two stages, the first a folded cascode amplifier and the second a large pass ...

Ha, Miranda J. (Miranda Joy)

2008-01-01T23:59:59.000Z

233

Physical and numerical modeling of the external fluid mechanics of OTEC pilot plants  

E-Print Network (OSTI)

This study examined the near field external fluid mechanics of symmetrical OTEC pilot plant designs (20-80 MWe) under realistic deep water conditions. The objective was to assess the environmental impact of different plant ...

Singarella, Paul N.

1982-01-01T23:59:59.000Z

234

Microscale Numerical Prediction over Montreal with the Canadian External Urban Modeling System  

Science Conference Proceedings (OSTI)

The Canadian urban and land surface external modeling system (known as urban GEM-SURF) has been developed to provide surface and near-surface meteorological variables to improve numerical weather prediction and to become a tool for environmental ...

Sylvie Leroyer; Stéphane Bélair; Jocelyn Mailhot; Ian B. Strachan

2011-12-01T23:59:59.000Z

235

Distributional Borel Summability for Vacuum Polarization by an External Electric Field  

E-Print Network (OSTI)

It is proved that the divergent perturbation expansion for the vacuum polarization by an external constant electric field in the pair production sector is Borel summable in the distributional sense.

Emanuela Caliceti

2002-10-14T23:59:59.000Z

236

The potential impact of externalities considerations on the market for biomass power technologies  

Science Conference Proceedings (OSTI)

This study assesses the current status of externalities considerations--nonmarket costs and benefits--in state and utility electricity resource planning processes and determines how externalities considerations might help or hinder the development of biomass power plants. It provides an overview of biomass resources and technologies, including their market status and environmental impacts; reviews the current treatment of externalities in the states; and documents the perspectives of key utility, regulatory, and industry representatives concerning externalities considerations. The authors make the following recommendations to the biomass industry: (1) the wood and agricultural waste industries should work toward having states and utilities recognize that wood and agricultural waste are greenhouse gas neutral resources because of carbon sequestration during growth; (2) the biomass industry should emphasize nonenvironmental benefits such as economic development and job creation; and (3) the biomass industry should pursue and support efforts to establish renewable energy set-asides or ``green`` requests for proposals.

Swezey, B.G.; Porter, K.L.; Feher, J.S.

1994-02-01T23:59:59.000Z

237

External proton beam analysis of plasma facing materials for magnetic confinement fusion applications  

E-Print Network (OSTI)

A 1.7MV tandem accelerator was reconstructed and refurbished for this thesis and for surface science applications at the Cambridge laboratory for accelerator study of surfaces (CLASS). At CLASS, an external proton beam ...

Barnard, Harold Salvadore

2009-01-01T23:59:59.000Z

238

Examining Internal and External Contributors to Greenland Climate Variability Using CCSM3  

Science Conference Proceedings (OSTI)

Greenland climate variability is connected to internal and external sources of global climate variability in six millennium simulations using Community Climate System Model 3. Simulation forcings are consistent with the PaleoClimate Model Inter-...

Heather J. Andres; W. R. Peltier

239

Intense Internal and External Fluorescence as Solar Cells Approach the Shockley-Queisser Efficiency Limit  

E-Print Network (OSTI)

Absorbed sunlight in a solar cell produces electrons and holes. But, at the open circuit condition, the carriers have no place to go. They build up in density and, ideally, they emit external fluorescence that exactly balances the incoming sunlight. Any additional non-radiative recombination impairs the carrier density buildup, limiting the open-circuit voltage. At open-circuit, efficient external fluorescence is an indicator of low internal optical losses. Thus efficient external fluorescence is, counter-intuitively, a necessity for approaching the Shockley-Queisser efficiency limit. A great Solar Cell also needs to be a great Light Emitting Diode. Owing to the narrow escape cone for light, efficient external emission requires repeated attempts, and demands an internal luminescence efficiency >>90%.

Miller, Owen D; Kurtz, Sarah R

2012-01-01T23:59:59.000Z

240

Going awol in the brain: Mind wandering reduces cortical analysis of external events  

Science Conference Proceedings (OSTI)

Converging evidence from neuroscience suggests that our attention to the outside world waxes and wanes over time. We examined whether these periods of mind wandering are associated with reduced cortical analysis of the external environment. Participants ...

Jonathan Smallwood; Emily Beach; Jonathan W. Schooler; Todd C. Handy

2008-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

How can an external application get access to OpenEI images and...  

Open Energy Info (EERE)

> Developer I'm building an external application in Simile Exhibit. Through an Ask query (http:en.openei.orgwikiSpecial:Ask), I can get the name of a file. But how do I...

242

HP Ex Parte Memo on Proposed Rulemaking for Battery Chargers and External Power Supplies  

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

Hewlett-Packard  Company (HP) appreciates the opportunity to comment on the new DOE rulemaking for Battery Chargers and External Power Supplies. Thank you for taking the time to speak with us.  HP...

243

Coworker External Dosimetry Data for the Y-12 National Security Complex  

SciTech Connect

Provides background information on the Y-12 coworker external dosimetry data and includes tables with annual values that may be used in the process of assigning doses for unmonitored years of employment.

McCartney KA, Watkins JP, Kerr GD, Tankersley WG

2009-12-18T23:59:59.000Z

244

Long-external-cavity distributed Bragg reflector laser with subkilohertz intrinsic linewidth  

E-Print Network (OSTI)

We report on a simple, compact, and robust 780 nm distributed Bragg reflector laser with subkilohertz intrinsic linewidth. An external cavity with optical path length of 3.6 m, implemented with an optical fiber, reduces ...

Lin, Qian

245

Hyperspectral microscopy using an external cavity quantum cascade laser and its applications for explosives detection  

Science Conference Proceedings (OSTI)

A hyperspectral infrared microscope using external cavity quantum cascade laser illumination and a microbolometer focal plane array is used to characterize nanogram-scale particles of the explosives RDX, tetryl, and PETN at fast acquisition rates.

Phillips, Mark C.; Suter, Jonathan D.; Bernacki, Bruce E.

2012-04-01T23:59:59.000Z

246

Prediction of Multi-Physics Behaviors of Large Lithium-Ion Batteries During Internal and External Short Circuit (Presentation)  

DOE Green Energy (OSTI)

This presentation describes the multi-physics behaviors of internal and external short circuits in large lithium-ion batteries.

Kim, G. H.; Lee, K. J.; Chaney, L.; Smith, K.; Darcy, E.; Pesaran, A.; Darcy, E.

2010-11-01T23:59:59.000Z

247

The Risk Assessment Information System  

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

Risk Assessment Documents Risk Assessment Documents Y-12 RA Graphic Results Y-12 Baseline Risk Assessment Results Y-12 Screening Risk Assessment Results Bullet Graphic Risk Results Arrow Bear Creek Valley Maps Residential Landuse Groundwater - Total Hazard (range: 1 - 900) Groundwater - Total Hazard (range: 0.1 - 1) Groundwater - Total Risk (range: 10-4 - 1) Groundwater - Total Risk (range: 10-5 - 10-4) Groundwater - Total Risk (range: 10-6 - 10-5) Groundwater - Dichloroethane, 1,1- Hazard Groundwater - Dichloroethene, 1,1- Hazard Groundwater - Dichloroethene, 1,1- Risk Groundwater - Dichloroethane, 1,2- Risk Groundwater - Dichloroethene, 1,2- Hazard Groundwater - Nitrate Hazard Groundwater - Radium Risk Groundwater - Technetium-99 Risk Groundwater - Tetrachloroethene Hazard Groundwater - Tetrachloroethene Risk

248

Pricing landfill externalities: Emissions and disamenity costs in Cape Town, South Africa  

Science Conference Proceedings (OSTI)

Highlights: > The paper estimates landfill externalities associated with emissions, disamenities and transport. > Transport externalities vary from 24.22 to 31.42 Rands per tonne. > Costs of emissions (estimated using benefits transfer) vary from 0.07 to 28.91 Rands per tonne. > Disamenities (estimated using hedonic pricing) vary from 0.00 to 57.46 Rands per tonne. > Overall, external costs for urban landfills exceed those of a regional landfill. - Abstract: The external (environmental and social) costs of landfilling (e.g. emissions to air, soil and water; and 'disamenities' such as odours and pests) are difficult to quantify in monetary terms, and are therefore not generally reflected in waste disposal charges or taken into account in decision making regarding waste management options. This results in a bias against alternatives such as recycling, which may be more expensive than landfilling from a purely financial perspective, but preferable from an environmental and social perspective. There is therefore a need to quantify external costs in monetary terms, so that different disposal options can be compared on the basis of their overall costs to society (financial plus external costs). This study attempts to estimate the external costs of landfilling in the City of Cape Town for different scenarios, using the benefits transfer method (for emissions) and the hedonic pricing method (for disamenities). Both methods (in particular the process of transferring and adjusting estimates from one study site to another) are described in detail, allowing the procedures to be replicated elsewhere. The results show that external costs are currently R111 (in South African Rands, or approximately US$16) per tonne of waste, although these could decline under a scenario in which energy is recovered, or in which the existing urban landfills are replaced with a new regional landfill.

Nahman, Anton, E-mail: anahman@csir.co.za [Environmental and Resource Economics Group, Natural Resources and the Environment, Council for Scientific and Industrial Research, P.O. Box 320, Stellenbosch 7599 (South Africa)

2011-09-15T23:59:59.000Z

249

Risk management for IT and software projects  

Science Conference Proceedings (OSTI)

Risk management can be defined as a systematic process for identifying, analyzing and controlling risks in projects or organizations. Definitions and illustrations of risks are given; in particular, a list of ten risk factors which occur most frequently ... Keywords: Riskit, analysis of risks, control of risks, identification of risks, monitoring of risks, project risks, quality management, risk definition, risk management, risk management process, risk scenario

E. Wallmüller

2002-01-01T23:59:59.000Z

250

An external dose reconstruction involving a radiological dispersal device  

E-Print Network (OSTI)

Recent events have underscored the need for the United States government to provide streamlined emergency response procedures and subsequent dose estimations for personnel responding to incidents involving radioactive material. Indeed, the National Council on Radiation Protection and Measurements Report No. 138 (NCRP 2001) indicates that exposures received by first responders will be important for a number of reasons, including planning for the appropriate use of key personnel in an extended emergency situation. In response, the Department of Homeland Security has published Protective Action Guides (DHS 2006) to help minimize these exposures and associated risks. This research attempts to provide some additional radiological exposure knowledge so that an Incident Commander, with limited or no information, can make more informed decisions about evacuation, sheltering-in-place, relocation of the public, turn-back levels, defining radiation hazard boundaries, and in-field radiological dose assessments of the radiation workers, responders, and members of the public. A method to provide such insight begins with providing a model that describes the physics of radiation interactions, radiation source and geometry, collection of field measurements, and interpretation of the collected data. A Monte Carlo simulation of the model is performed so that calculated results can be compared to measured values. The results of this investigation indicate that measured organ absorbed doses inside a tissue equivalent phantom compared favorably to the derived organ absorbed doses measured by the Panasonic thermoluminescence dosimeters and with Monte Carlo �N� Particle modeled results. Additionally, a Victoreen 450P pressurized ion chamber measured the integrated dose and these results compared well with the Panasonic right lateral TLD. This comparison indicates that the Victoreen 450P ionization chamber could potentially serve as an estimator of real-time effective dose and organ absorbed dose, if energy and angular dependence corrections could be taken into account. Finally, the data obtained in this investigation indicate that the MCNP model provided a reasonable method to determine organ absorbed dose and effective dose of a simulated Radiological Dispersal Device in an Inferior-Superior geometry with Na99mTcO4 as the source of radioactive material.

Hearnsberger, David Wayne

2006-12-01T23:59:59.000Z

251

Risk And Risk Management In Geothermal Exploration And Development...  

Open Energy Info (EERE)

Up Search Page Edit with form History Facebook icon Twitter icon Risk And Risk Management In Geothermal Exploration And Development Jump to: navigation, search GEOTHERMAL...

252

Prediction of External Corrosion for Steel Cylinders 2003 Report  

Science Conference Proceedings (OSTI)

Depleted uranium hexafluoride (UF{sub 6}) is stored in over 60,000 steel cylinders at the East Tennessee Technology Park (ETTP) in Oak Ridge, Tennessee, at the Paducah Gaseous Diffusion Plant (PGDP) in Paducah, Kentucky, and at the Portsmouth Gaseous Diffusion Plant (PORTS) in Portsmouth, Ohio. The cylinders range in age from six to 52 years. Although when new the cylinders had wall thicknesses specified to within manufacturing tolerances, over the years corrosion has reduced their actual wall thicknesses. The UF{sub 6} Cylinder Project is managed by the United States Department of Energy (DOE) to safely maintain the UF{sub 6} and the cylinders containing it. The requirements of the Project are delineated in the System Requirements Document (LMES 1997a), and the actions needed to fulfill those requirements are specified in the System Engineering Management Plan (LMES 1997b). This report documents activities that address requirements and actions involving forecasting cylinder wall thicknesses. Wall thickness forecasts are based on models fit to ultrasonic thickness (UT) measurement data. First, UT data collected during FY02 is combined with UT data collected in earlier years (FY92-FY01), and all of the data is inventoried chronologically and by various subpopulations. Next, the data is used to model either maximum pit depth or minimum thickness as a function of cylinder age, subpopulation (e.g., PGDP G-yard, bottom-row cylinders), and initial thickness estimates. The fitted models are then used to extrapolate minimum thickness estimates into the future and to compute estimates of numbers of cylinders expected to fail various thickness criteria. A model evaluation is performed comparing UT measurements made in FY02 with model-fitted projections based only on data collected before FY02. The FY02 UT data, entered into the corrosion model database and not available for the previous edition of this report (Schmoyer and Lyon 2002), consists of thickness measurements of 48'' thin-wall cylinders: 102 cylinders at Paducah, 104 at ETTP, and 117 at Portsmouth; and 72 thick-wall cylinders at Portsmouth. However, because of missing values, repeated measures on the same cylinders, outliers, and other data problems, not all of these measurements are necessarily used in the corrosion analysis, and some previous measurements may simply be replaced with the new ones. In this edition of the report, cylinder subpopulation definitions and counts are updated using the latest (as of June 2003) information from the Cylinder Inventory Database (CID). Cylinders identified in the CID as painted during the last ten years are excluded from subpopulations considered at-risk of failing minimum thickness criteria, because it is assumed that painting fully arrests corrosion for ten years. As in the previous edition of the report, two different approaches to corrosion modeling are pursued: (1) a direct approach in which minimum thickness is modeled directly as a function of age, subpopulation, and initial thickness estimates; and (2) an indirect approach, in which maximum pit depth is modeled, and the pit-depth model is then combined with a model of initial thickness to compute estimates of minimum thickness.

Schmoyer, RLS

2003-09-24T23:59:59.000Z

253

The Risk Assessment Information System  

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

Debra Stewart at (865)482-2657 or dthomas3@utk.edu. Risk assessments conducted for the DOE-ORO should implement Guidance for Conducting Risk Assessments and Related Risk...

254

Risk in the Weapons Stockpile  

Science Conference Proceedings (OSTI)

When it comes to the nuclear weapons stockpile, risk must be as low as possible. Design and care to keep the stockpile healthy involves all aspects of risk management. Design diversity is a method that helps to mitigate risk.

Noone, Bailey C [Los Alamos National Laboratory

2012-08-14T23:59:59.000Z

255

High Risk Plan  

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

Risk Plan Risk Plan John Bashista Melissa Rider Jeff Davis Timeline to date * OMB memo on Improving Government Acquisition issued July 29, 2009 - Review existing contracts and acquisition practices to save 7% of baseline contract spending (3.5% in FY 2010 and 3.5% in FY 2011) - Reduce high risk contracts by 10% the share of dollars obligated in FY2010 - Final plan was due and submitted on November 2, 2009 - OMB reviewed and requested revision Dec 23, 2009 - Revision submitted April 21, 2010 M&Os are an Issue * With respect to reductions in high risk contracting strategies, the M&O contracts was also a challenge since the opportunity to further influence competition and contract type was highly constrained. The Department had already competed approximately 85 percent of its M&O

256

Risk Management RM  

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

Risk Management Review Module Risk Management Review Module March 2010 CD-0 O 0 OFFICE OF C CD-1 F ENVIRO Standard R Risk M Rev Critical Decis CD-2 M ONMENTAL Review Plan Managem view Module sion (CD) Ap CD March 2010 L MANAGE (SRP) ment e pplicability D-3 EMENT CD-4 Post Ope eration Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental Management (EM) projects are identified early and addressed proactively. The internal EM project review process encompasses key milestones established by DOE O 413.3A, Change 1, Program and Project Management for the Acquisition of Capital Assets, DOE-STD-1189-2008, Integration of Safety into the Design Process, and EM's internal

257

Risks to the public  

Science Conference Proceedings (OSTI)

Edited by Peter G. Neumann (Risks Forum Moderator and Chairman of the ACM Committee on Computers and Public Policy), plus personal contributions by others, as indicated. Opinions expressed are individual rather than organizational, and all of the usual ...

Peter G. Neumann

2009-02-01T23:59:59.000Z

258

Risks to the public  

Science Conference Proceedings (OSTI)

Edited by Peter G. Neumann (Risks Forum Moderator and Chairman of the ACM Committee on Computers and Public Policy), plus personal contributions by others, as indicated. Opinions expressed are individual rather than organizational, and all of the usual ...

Peter G. Neumann

2006-11-01T23:59:59.000Z

259

Risks to the public  

Science Conference Proceedings (OSTI)

Edited by Peter G. Neumann (Risks Forum Moderator and Chairman of the ACM Committee on Computers and Public Policy), plus personal contributions by others, as indicated. Opinions expressed are individual rather than organizational, and all of the usual ...

Peter G. Neumann

2005-07-01T23:59:59.000Z

260

Risks to the public  

Science Conference Proceedings (OSTI)

Edited by Peter G. Neumann (Risks Forum Moderator and Chairman of the ACM Committee on Computers and Public Policy), plus personal contributions by others, as indicated. Opinions expressed are individual rather than organizational, and all of the usual ...

Peter G. Neumann

2009-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

Risks to the public  

Science Conference Proceedings (OSTI)

Edited by Peter G. Neumann (Risks Forum Moderator and Chairman of the ACM Committee on Computers and Public Policy), plus personal contributions by others, as indicated. Opinions expressed are individual rather than organizational, and all of the usual ...

Peter G. Neumann

2008-10-01T23:59:59.000Z

262

Risks to the public  

Science Conference Proceedings (OSTI)

Edited by Peter G. Neumann (Risks Forum Moderator and Chairman of the ACM Committee on Computers and Public Policy), plus personal contributions by others, as indicated. Opinions expressed are individual rather than organizational, and all of the usual ...

Peter G. Neumann

2005-11-01T23:59:59.000Z

263

Risks to the public  

Science Conference Proceedings (OSTI)

Edited by Peter G. Neumann (Risks Forum Moderator and Chairman of the ACM Committee on Computers and Public Policy), plus personal contributions by others, as indicated. Opinions expressed are individual rather than organizational, and all of the usual ...

Peter G. Neumann

2005-05-01T23:59:59.000Z

264

Risk Mitigation Strategies  

Science Conference Proceedings (OSTI)

This technical update builds upon the development of attack/failure and cyber-physical attack scenarios focused on combined cyber-physical attacks. These scenarios include threats and vulnerabilities that may be exploited by well-financed and motivated entities. It also leverages risk assessment processes developed to address combined cyber-physical attack scenarios. The framework in this update supports the further development of risk mitigation strategies focused on combined cyber-physical ...

2012-12-28T23:59:59.000Z

265

Transmission Price Risk Management  

Science Conference Proceedings (OSTI)

This report is concerned with the financial risks that arise from the uncertain price of transmission service in restructured or competitive electricity markets. These risks are most severe in markets with locational pricing (LMP), but they also exist in more traditionally organized electricity markets. This report has two main purposes. The first is to review the existing mathematical models of electricity price formation in spot and forward markets that may be helpful as the foundations for developing ...

2006-12-04T23:59:59.000Z

266

The Risk Assessment Information System  

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

Guidance for Conducting Risk Assessments and Related Risk Activities for the DOE-ORO Environmental Management Program. BJCOR-271 Guidance for Treatment of Variability and...

267

The Risk Assessment Information System  

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

risk assessment information used to evaluate and remediate legacy contamination from the Manhattan Project. The RAIS was designed to provide all risk assessment processes in a...

268

Committee to evaluate Sandia`s risk expertise: Final report. Volume 1: Presentations  

Science Conference Proceedings (OSTI)

On July 1--2, 1997, Sandia National Laboratories hosted the External Committee to Evaluate Sandia`s Risk Expertise. Under the auspices of SIISRS (Sandia`s International Institute for Systematic Risk Studies), Sandia assembled a blue-ribbon panel of experts in the field of risk management to assess their risk programs labs-wide. Panelists were chosen not only for their own expertise, but also for their ability to add balance to the panel as a whole. Presentations were made to the committee on the risk activities at Sandia. In addition, a tour of Sandia`s research and development programs in support of the US Nuclear Regulatory Commission was arranged. The panel attended a poster session featuring eight presentations and demonstrations for selected projects. Overviews and viewgraphs from the presentations are included in Volume 1 of this report. Presentations are related to weapons, nuclear power plants, transportation systems, architectural surety, environmental programs, and information systems.

Dudley, E.C.

1998-05-01T23:59:59.000Z

269

Risk Management Process Overview | Department of Energy  

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

Cybersecurity Risk Management Process Risk Management Process Overview Risk Management Process Overview figure depicting three tier risk management process The cybersecurity...

270

Second Primary Cancer After Radiotherapy for Prostate Cancer-A SEER Analysis of Brachytherapy Versus External Beam Radiotherapy  

Science Conference Proceedings (OSTI)

Purpose: To determine the incidence of second primary cancers (SPCs) and radiotherapy-induced SPCs (RTSPCs). Patients and Methods: The incidence of SPCs and RTSPCs was compared among four treatment groups with locoregional prostate adenocarcinoma in the 1973-2002 Surveillance, Epidemiology, and End Results database. These groups were no radiotherapy (RT), no surgery (Group 1); external beam RT (EBRT) (Group 2); brachytherapy (Group 3); and a combination of EBRT and brachytherapy (Group 4). Results: The age-adjusted estimates of SPCs were greater with EBRT than with brachytherapy (2,178 vs. 1,901 SPCs/100,000; p = 0.025) or with the no RT, no surgery group (1,971 SPCs/100,000; p =}5 years) for EBRT (2,425 SPCs/100,000) was only significantly greater (p <0.0001) than that for no RT, no surgery (1,950 SPCs/100,000). The hazard ratio adjusted for age, race/ethnicity, and grade was constant at 1.263 for EBRT compared with no RT, no surgery (p <0.0001) but varied with the length of follow-up in both the brachytherapy (0.721 at 5 years to 1.200 at 9 years) and combination (0.920 at 5 years to 1.317 at 9 years) groups. The incidence of RTSPCs was only significantly different between the no RT, no surgery group and the EBRT group, with an increase of 162 cases/100,000 or a 0.16% increased SPC risk (p = 0.023). No significant differences in the incidence of RTSPC were seen between the RT groups. Conclusion: No significant differences were seen in the incidence of RTSPCs between the RT groups. The initial smaller relative risk of overall SPCs in the brachytherapy group increased with time until the curves converged, suggesting that the effect had resulted from patient selection bias.

Abdel-Wahab, May [Department of Radiation Oncology, University of Miami Miller School of Medicine, Miami, FL (United States)], E-mail: mwahab@med.miami.edu; Reis, Isildinha M. [Division of Biostatistics, Sylvester Comprehensive Cancer Center, Miami, FL (United States); Department of Epidemiology and Public Health, University of Miami Miller School of Medicine, Miami, FL (United States); Hamilton, Kara [Division of Biostatistics, Sylvester Comprehensive Cancer Center, Miami, FL (United States)

2008-09-01T23:59:59.000Z

271

N reactor individual risk comparison to quantitative nuclear safety goals  

Science Conference Proceedings (OSTI)

A full-scope level III probabilistic risk assessment (PRA) has been completed for N reactor, a US Department of Energy (DOE) production reactor located on the Hanford Reservation in the state of Washington. Sandia National Laboratories (SNL) provided the technical leadership for this work, using the state-of-the-art NUREG-1150 methodology developed for the US Nuclear Regulatory Commission (NRC). The main objectives of this effort were to assess the risks to the public and to the on-site workers posed by the operation of N reactor, to identify changes to the plant that could reduce the overall risk, and to compare those risks to the proposed NRC and DOE quantitative safety goals. This paper presents the methodology adopted by Westinghouse Hanford Company (WHC) and SNL for individual health risk evaluation, its results, and a comparison to the NRC safety objectives and the DOE nuclear safety guidelines. The N reactor results, are also compared with the five NUREG-1150 nuclear plants. Only internal events are compared here because external events are not yet reported in the current draft NUREG-1150. This is the first full-scope level III PRA study with a detailed quantitative safety goal comparison performed for DOE production reactors.

Wang, O.S.; Rainey, T.E.; Zentner, M.D.

1990-01-01T23:59:59.000Z

272

Control system for electric water heater with heat pump external heat source  

Science Conference Proceedings (OSTI)

A control system for an electric water heater operatively associated with an external heat source, such as a heat pump. The water heater includes a water storage tank provided with an electric tank heating unit having a tank thermostat which closes in response to water temperature in the tank, allowing a flow of current through the tank heating unit so as to turn it on to heat the water, and which opens when the tank thermostat has been satisfied, interrupting the current flow so as to turn the tank heating unit off. The control system as responsive to the initial current surge through the tank heating unit when the tank thermostat closes to interrupt the current flow to the tank heating unit so as to maintain the heating unit off and to turn on the external heat source and maintain it on until the tank thermostat opens. The initial current surge cleans the contacts of the tank thermostat by burning off any insulating oxide residues which may have formed on them. The control system includes means responsive to abnormal conditions which would prevent the external heat source from heating water effectively for turning off the external heat source and turning on the tank heating unit and maintaining the external heat source off and the tank heating unit on until the tank thermostat is satisfied.

Shaffer Jr., J. E.; Picarello, J. F.

1985-09-10T23:59:59.000Z

273

Mercury Risk Assessment  

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

ASSESSING THE MERCURY HEALTH RISKS ASSOCIATED ASSESSING THE MERCURY HEALTH RISKS ASSOCIATED WITH COAL-FIRED POWER PLANTS: IMPACTS OF LOCAL DEPOSITIONS *T.M. Sullivan 1 , F.D. Lipfert 2 , S.M. Morris 2 , and S. Renninger 3 1 Building 830, Brookhaven National Laboratory, Upton, NY 11973 2 Private Consultants 3 Department of Energy, National Energy Technology Laboratory, Morgantown, WV ABSTRACT The U.S. Environmental Protection Agency has announced plans to regulate emissions of mercury to the atmosphere from coal-fired power plants. However, there is still debate over whether the limits should be placed on a nationwide or a plant-specific basis. Before a nationwide limit is selected, it must be demonstrated that local deposition of mercury from coal-fired power plants does not impose an excessive local health risk. The principal health

274

An Assessment Of The External Radiological Impact In Areas Of Greece With  

Open Energy Info (EERE)

Assessment Of The External Radiological Impact In Areas Of Greece With Assessment Of The External Radiological Impact In Areas Of Greece With Elevated Natural Radioactivity Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Assessment Of The External Radiological Impact In Areas Of Greece With Elevated Natural Radioactivity Details Activities (0) Areas (0) Regions (0) Abstract: In the present study, the radiological impact assessment in three selected areas of elevated natural radioactivity in Greece is attempted, based on measurements, theoretical relations, and simple model application. These areas are Milos - an island of volcanic origin in Cyclades Archipelago, Ikaria - an island in the Eastern Aegean Sea and Loutraki - a coastal area in mainland Greece. These areas are characterized by their

275

Enforcement Letter - Quality Assurance Deficiency Related to External Dosimetry Accreditation, March 31, 2006  

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

31, 2006 31, 2006 Mr. Frank Russo President and General Manager Bechtel BWXT Idaho, LLC Advanced Mixed Waste Treatment Project Office 765 Lindsay Boulevard Idaho Falls, ID 83402 Subject: Enforcement Letter - Quality Assurance Deficiency Related to External Dosimetry Accreditation Dear Mr. Russo, This letter is to inform you of the Department of Energy's (DOE) concern regarding a quality assurance-related deficiency stemming from the recent external radiation dosimetry performance testing by the DOE Laboratory Accreditation Program (DOELAP) of dosimeters utilized at Idaho National Laboratory (INL). This deficiency was identified through the quality assurance testing of external dosimeters by CH2M- WG Idaho (CWI) staff. During its employment as the management and operating (M&O) contractor of what is

276

Potential External (non-DOE) Constraints on U.S. Fuel Cycle Options  

SciTech Connect

The DOE Fuel Cycle Technologies (FCT) Program will be conducting a screening of fuel cycle options in FY2013 to help focus fuel cycle R&D activities. As part of this screening, performance criteria and go/no-go criteria are being identified. To help ensure that these criteria are consistent with current policy, an effort was initiated to identify the status and basis of potentially relevant regulations, laws, and policies that have been established external to DOE. As such regulations, laws, and policies may be beyond DOE’s control to change, they may constrain the screening criteria and internally-developed policy. This report contains a historical survey and analysis of publically available domestic documents that could pertain to external constraints on advanced nuclear fuel cycles. “External” is defined as public documents outside DOE. This effort did not include survey and analysis of constraints established internal to DOE.

Steven J. Piet

2012-07-01T23:59:59.000Z

277

Chinese Restaurant Game - Part I: Theory of Learning with Negative Network Externality  

E-Print Network (OSTI)

In a social network, agents are intelligent and have the capability to make decisions to maximize their utilities. They can either make wise decisions by taking advantages of other agents' experiences through learning, or make decisions earlier to avoid competitions from huge crowds. Both these two effects, social learning and negative network externality, play important roles in the decision process of an agent. While there are existing works on either social learning or negative network externality, a general study on considering both these two contradictory effects is still limited. We find that the Chinese restaurant process, a popular random process, provides a well-defined structure to model the decision process of an agent under these two effects. By introducing the strategic behavior into the non-strategic Chinese restaurant process, in Part I of this two-part paper, we propose a new game, called Chinese Restaurant Game, to formulate the social learning problem with negative network externality. Throu...

Wang, Chih-Yu; Li, K J Ray

2011-01-01T23:59:59.000Z

278

Computing the External Magnetic Scalar Potential due to an Unbalanced Six-Pole Permanent Magnet Motor  

SciTech Connect

The accurate computation of the external magnetic field from a permanent magnet motor is accomplished by first computing its magnetic scalar potential. In order to find a solution which is valid for any arbitrary point external to the motor, a number of proven methods have been employed. Firstly, A finite element model is developed which helps generate magnetic scalar potential values valid for points close to and outside the motor. Secondly, charge simulation is employed which generates an equivalent magnetic charge matrix. Finally, an equivalent multipole expansion is developed through the application of a toroidal harmonic expansion. This expansion yields the harmonic components of the external magnetic scalar potential which can be used to compute the magnetic field at any point outside the motor.

Selvaggi J, Salon S, Kwon O, Chari MVK

2007-02-12T23:59:59.000Z

279

Dynamic and Dielectric Response of Charged Colloids in Electrolyte Solutions to External Electric Fields  

E-Print Network (OSTI)

Computer simulations are used to investigate the response of a charged colloid and its surrounding microion cloud to an external electric field. Both static fields (DC) and alternating fields (AC) are considered. A mesoscopic simulation method is implemented to account in full for hydrodynamic and electrostatic interactions. The response of the system can be characterized by two quantities: the mobility and the polarizability. Due to the interplay of the electrostatic attraction and hydrodynamic drag, the response of the microions close to the colloid surface is different from that of the microions far away from the colloid. Both the mobility and polarizability exhibit a dependency on the frequency of the external fields, which can be attributed to the concentration polarization, the mobility of the microions, and the inertia of microions. The effects of the colloidal charge, the salt concentration, and the frequency of the external fields are investigated systematically.

Jiajia Zhou; Roman Schmitz; Burkard Duenweg; Friederike Schmid

2013-06-12T23:59:59.000Z

280

Photoluminescence Blinking Dynamics of Colloidal Quantum Dots in the Presence of Controlled External Electron Traps  

Science Conference Proceedings (OSTI)

The effect of the external charge trap on the photoluminescence blinking dynamics of individual colloidal quantum dots is investigated with a series of colloidal quantum dot-bridge-fullerene dimers with varying bridge lengths, where the fullerene moiety acts as a well-defined, well-positioned external charge trap. It is found that charge transfer followed by charge recombination is an important mechanism in determining the blinking behavior of quantum dots when the external trap is properly coupled with the excited state of the quantum dot, leading to a quasi-continuous distribution of 'on' states and an early fall-off from a power-law distribution for both 'on' and 'off' times associated with quantum dot photoluminescence blinking.

Cotlet, M.; Xu, Z.

2012-01-23T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

External dose-rate conversion factors for calculation of dose to the public  

SciTech Connect

This report presents a tabulation of dose-rate conversion factors for external exposure to photons and electrons emitted by radionuclides in the environment. This report was prepared in conjunction with criteria for limiting dose equivalents to members of the public from operations of the US Department of Energy (DOE). The dose-rate conversion factors are provided for use by the DOE and its contractors in performing calculations of external dose equivalents to members of the public. The dose-rate conversion factors for external exposure to photons and electrons presented in this report are based on a methodology developed at Oak Ridge National Laboratory. However, some adjustments of the previously documented methodology have been made in obtaining the dose-rate conversion factors in this report. 42 refs., 1 fig., 4 tabs.

Not Available

1988-07-01T23:59:59.000Z

282

Synchronization of an array of spin torque nano oscillators in periodic applied external magnetic field  

E-Print Network (OSTI)

Considering an array of spin torque transfer nano oscillators (STNOs), we have investigated the synchronization property of the system under the action of a common periodically driven applied external magnetic field by numerically analyzing the underlying system of Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equations for the macro-spin variables. We find the novel result that the applied external magnetic field can act as a medium to induce synchronization of periodic oscillations, both in-phase and anti-phase, even without coupling through spin current, thereby leading to the exciting possibility of enhancement of microwave power in a straightforward way.

B. Subash; V. K. Chandrasekar; M. Lakshmanan

2013-04-03T23:59:59.000Z

283

Correlation of External Exposure and Dose Equivalent Rates with Uranium Surface Contamination  

SciTech Connect

This report provides both calculated estimates and measured values of exposure in air and tissue dose from external penetrating radiation at a distance of 1 m from uranium contamination on surfaces at the Oak Ridge Y-12 Plant, in support of the Y-12 Site Radiological Characterization Study. Calculated values are based on the total energy from gamma rays and X rays emitted by uranium and its shordaughters at secular equilibrium. Results of a small number of measurements are provided for comparison. Dose rate values derived here are limited to those of external penetrating radiation from distributed sources with limited surface area and from point sources.

Ashley, J.C.; Bogard, J.S.; Brown, K.S.; England, C.A.; Hamm, R.N.; Turner, J.E.

1999-06-01T23:59:59.000Z

284

Equipment Risk and Performance Assessment  

Science Conference Proceedings (OSTI)

Risk assessment and management are key elements in a well developed asset management implementation. Consequently an increasing number of utility managers are devoting resources to the task of improving their capabilities for risk-based decision making. Equipment risk models are essential elements in a risk assessment process. However, most proposed power delivery equipment risk models require for their successful application some probabilistic representation describing the chances of equipment ...

2012-12-14T23:59:59.000Z

285

Equipment Risk and Performance Assessment  

Science Conference Proceedings (OSTI)

Risk assessment and management are key elements in a well-developed asset management implementation. Consequently, an increasing number of utility managers are devoting resources to the task of improving their capabilities for risk-based decision making. Equipment risk models are essential elements in the risk assessment process. However, for their application, most proposed power delivery equipment risk models require some probabilistic representation describing the chances of equipment failure. This re...

2011-12-21T23:59:59.000Z

286

NGNP Risk Management Database: A Model for Managing Risk  

Science Conference Proceedings (OSTI)

The Next Generation Nuclear Plant (NGNP) Risk Management System (RMS) is a database used to maintain the project risk register. The RMS also maps risk reduction activities to specific identified risks. Further functionality of the RMS includes mapping reactor suppliers Design Data Needs (DDNs) to risk reduction tasks and mapping Phenomena Identification Ranking Table (PIRTs) to associated risks. This document outlines the basic instructions on how to use the RMS. This document constitutes Revision 1 of the NGNP Risk Management Database: A Model for Managing Risk. It incorporates the latest enhancements to the RMS. The enhancements include six new custom views of risk data - Impact/Consequence, Tasks by Project Phase, Tasks by Status, Tasks by Project Phase/Status, Tasks by Impact/WBS, and Tasks by Phase/Impact/WBS.

John Collins; John M. Beck

2011-11-01T23:59:59.000Z

287

Health risks in perspective: Judging health risks of energy technologies  

Science Conference Proceedings (OSTI)

Almost daily, Americans receive reports from the mass news media about some new and frightening risk to health and welfare. Most such reports emphasize the newsworthiness of the risks -- the possibility of a crisis, disagreements among experts, how things happened, who is responsible for fixing them, how much will it cost, conflict among parties involved, etc. As a rule, the magnitudes of the risks, or the difficulty of estimating those magnitudes, have limited newsworthiness, and so they are not mentioned. Because of this emphasis in the news media, most people outside the risk assessment community must judge the relative significance of the various risks to which we all are exposed with only that information deemed newsworthy by reporters. This information is biased and shows risks in isolation. There is no basis for understanding and comparing the relative importance of risks among themselves, or for comparing one risk, perhaps a new or newly-discovered one, in the field of all risks. The purpose of this report is to provide perspective on the various risks to which we are routinely exposed. It serves as a basis for understanding the meaning of quantitative risk estimates and for comparing new or newly-discovered risks with other, better-understood risks. Specific emphasis is placed on health risks of energy technologies.

Rowe, M.D.

1992-09-18T23:59:59.000Z

288

Modelling environmental risk  

Science Conference Proceedings (OSTI)

As environmental issues have become increasingly important in economic research and policy for sustainable development, firms in the private sector have introduced environmental and social issues in conducting their business activities. Such behaviour ... Keywords: Asymmetry, Conditional volatility, Dow Jones Sustainability Indexes, Environmental risk, Environmental sustainability index, GARCH, GJR, Log-moment condition, Moment condition, Persistence, Shocks

Suhejla Hoti; Michael McAleer; Laurent L. Pauwels

2005-10-01T23:59:59.000Z

289

Refining non-taxonomic relation labels with external structured data to support ontology learning  

Science Conference Proceedings (OSTI)

This paper presents a method to integrate external knowledge sources such as DBpedia and OpenCyc into an ontology learning system that automatically suggests labels for unknown relations in domain ontologies based on large corpora of unstructured text. ... Keywords: Machine learning, Ontologies, Ontology learning, Relation labeling, Semantic web

Albert Weichselbraun; Gerhard Wohlgenannt; Arno Scharl

2010-08-01T23:59:59.000Z

290

Detecting and Attributing External Influences on the Climate System: A Review of Recent Advances  

SciTech Connect

We review recent research that assesses evidence for the detection of anthropogenic and natural external influences on the climate. Externally driven climate change has been detected by a number of investigators in independent data covering many parts of the climate system, including surface temperature on global and large regional scales, ocean-heat content, atmospheric circulation, and variables of the free atmosphere, such as atmospheric temperature and tropopause height. The influence of external forcing is also clearly discernible in reconstructions of hemispheric scale temperature of the last millennium. These observed climate changes are very unlikely to be due only to natural internal climate variability, and they are consistent with the responses to anthropogenic and natural external forcing of the climate system that are simulated with climate models. The evidence indicates that natural drivers such as solar variability and volcanic activity are at most partially responsible for the large-scale temperature changes observed over the past century, and that a large fraction of the warming over the last 50 years can be attributed to greenhouse gas increases. Thus the recent research supports and strengthens the IPCC Third Assessment Report conclusion that ''most of the global warming over the past 50 years is likely due to the anthropogenic increase in greenhouse gases''.

Barnett, T; Zwiers, F; Hegerl, G; Allen, M; Crowley, T; Gillett, N; Hasselmann, K; Jones, P; Santer, B; Schnur, R; Stott, P; Taylor, K; Tett, S

2005-01-26T23:59:59.000Z

291

Evaluating the Rationale for the Utility-Accessible External Disconnect Switch: Preprint  

DOE Green Energy (OSTI)

This paper describes the utility-accessible alternating current (AC) external disconnect switch (EDS) for distributed generators, including photovoltaic (PV) systems, which is a hardware feature that allows a utility's employees to manually disconnect a customer-owned generator from the electricity grid.

Coddington, M. H.

2008-05-01T23:59:59.000Z

292

A framework for the study of external representations in collaborative design settings  

Science Conference Proceedings (OSTI)

The use of modeling, simulation and visualization techniques in scientific and technical domains has led to the co-existence of a large diversity of external representations that, when deployed in collaborative work settings, can be designated by the ... Keywords: Collaborative design, Inscriptions, Serious game, Shared representations, Typology

Erica De Vries; CéDric Masclet

2013-01-01T23:59:59.000Z

293

The Effect of an Externally Attached Neutrally Buoyant Transmitter on Mortal Injury during Simulated Hydroturbine Passage  

Science Conference Proceedings (OSTI)

On their seaward migration, juvenile salmonids commonly pass hydroelectric dams. Fish passing through hydroturbines experience a rapid decrease in pressure as they pass by the turbine blade and the severity of this decompression can be highly variable. This rapid decrease in pressure can result in injuries such as swim bladder rupture, exophthalmia, and emboli and hemorrhaging in the fins and tissues. However, recent research indicates that the presence of a telemetry tag (acoustic, radio, inductive) implanted inside the coelom of a juvenile salmon increases the likelihood that the fish will be injured or die during turbine passage. Thus, previous research conducted using telemetry tags implanted into the coelom of fish may have been inaccurate. Thus, a new technique is needed to provide unbiased estimates of survival through turbines. This research provides an evaluation of the effectiveness of a neutrally buoyant externally attached acoustic transmitter. Both nontagged fish and fish tagged with a neutrally buoyant external transmitter were exposed to a range of rapid decompressions simulating turbine passage. Juvenile Chinook salmon tagged with a neutrally buoyant externally attached acoustic transmitter did not receive a higher degree of barotrauma than their nontagged counterparts. We suggest that future research include field-based comparisons of survival and behavior among fish tagged with a neutrally buoyant external transmitter and those internally implanted with transmitters.

Brown, Richard S.; Pflugrath, Brett D.; Carlson, Thomas J.; Deng, Zhiqun

2012-02-03T23:59:59.000Z

294

Chaotic Behaviors in the Response of a Quasigeostrophic Oceanic Double Gyre to Seasonal External Forcing  

Science Conference Proceedings (OSTI)

In an oceanic double-gyre system, nonlinear oscillations of the ocean under seasonally changing external forcing are investigated using a 1.5-layer quasigeostrophic model and a simple model related to energy balance of the oceanic double gyre. In ...

Shinya Shimokawa; Tomonori Matsuura

2010-07-01T23:59:59.000Z

295

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

Science Conference Proceedings (OSTI)

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

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

2012-06-10T23:59:59.000Z

296

Externality Regulation in Oil and Gas Encyclopedia of Energy, Natural Resource, and  

E-Print Network (OSTI)

Externality Regulation in Oil and Gas Chapter 56 Encyclopedia of Energy, Natural Resource regulating well spacing, preventing of flaring or venting of natural gas, regulating production from wells oil/gas and oil/water ratios, and no-flaring and venting rules for natural gas. 1 Introduction

Garousi, Vahid

297

Electron correlation in a hard spherical external potential: Wigner molecule formation and hybridization  

E-Print Network (OSTI)

Electron correlation in a hard spherical external potential: Wigner molecule formation; published 12 May 2004 We study a model of N electrons confined to a hard spherical box of radius R, for N 3, and is a generalization of recent work on the corresponding two-electron system.1­3 The box acts as a hard wall to confine

Alavi, Ali

298

Intracavity Sensing via Compliance Voltage in an External Cavity Quantum Cascade Laser  

SciTech Connect

We demonstrate a technique for gas phase spectroscopy and sensing by detecting changes in compliance voltage of an external cavity quantum cascade laser due to intracavity absorption. The technique is characterized and used to measure the absorption spectrum of water vapor and Freon-134a.

Phillips, Mark C.; Taubman, Matthew S.

2012-07-01T23:59:59.000Z

299

External Evaluation of Proposed Changes of the Power Market Rules in Poland  

Science Conference Proceedings (OSTI)

The Polish Power Grid Company requested an independent, external evaluation of proposed changes to power market rules in Poland, to better ensure an efficient and reliable technical infrastructure serving all market players. This report provides such an evaluation, making recommendations for continued improvement in market design and monitoring.

2003-10-31T23:59:59.000Z

300

Particle production in field theories coupled to strong external sources. II: Generating functions  

E-Print Network (OSTI)

We discuss a method for computing the generating function for the multiplicity distribution in field theories with strong time dependent external sources. At leading order, the computation of the generating function reduces to finding a pair of solutions of the classical equations of motion, with non-standard temporal boundary conditions.

Francois Gelis; Raju Venugopalan

2006-05-23T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

Free Form of the Foldy-Wouthuysen Transformation in External Electromagnetic Fields  

E-Print Network (OSTI)

We derive the exact Foldy-Wouthuysen transformation for Dirac fermions in a time independent external electromagnetic field in the basis of the Ritus eigenfunctions, namely the eigenfunctions of the operator $(\\gamma \\cdot \\Pi)^2$, with $\\Pi^\\mu = p^\\mu - e A^\\mu$. In this basis, the transformation acquires a free form involving the dynamical quantum numbers induced by the field.

Gabriela Murguia; Alfredo Raya

2010-08-29T23:59:59.000Z

302

Externally Forced and Internal Variability in Ensemble Climate Simulations of the Maunder Minimum  

Science Conference Proceedings (OSTI)

The response of the climate system to natural, external forcing during the Maunder Minimum (ca. a.d. 1645–1715) is investigated using a comprehensive climate model. An ensemble of six transient simulations is produced in order to examine the ...

Masakazu Yoshimori; Thomas F. Stocker; Christoph C. Raible; Manuel Renold

2005-10-01T23:59:59.000Z

303

CMS Project Team --Business Process Guide Process: Search & Apply for Jobs --External Applicants  

E-Print Network (OSTI)

Recruiting Self Service / Search & Apply for Jobs ­ External Applicants Page: 28 #12;The Terms and Agreements the Job Search hyperlink. The Job Search page displays. 2. Enter search criteria. Job Search Recruiting: · Name: Enter the name of the search. · Notify: Select this checkbox if you wish to be notified of new

Su, Xiao

305

DOE safety goals comparison using NUREG-1150 PRA (probabilistic risk assessment) methodology  

Science Conference Proceedings (OSTI)

A full-scope Level 3 probabilistic risk assessment (PRA) including external events has been performed for N Reactor, a US Department of Energy (DOE) Category A production reactor. This four-year, multi-million dollar task was a joint effort by Westinghouse Hanford Company, Science Applications International Corporation (SAIC), and Sandia National Laboratories (SNL). Technical lead in external events and NUREG-1150 methodology was provided by SNL. SAIC led the effort in the Level 1 analysis for the internally initiated events. Westinghouse Hanford supported the task in many key areas, such as data collection and interpretation, accident progression, system interaction, human factor analyses, expert elicitation, peers review, etc. The main objective of this Level 3 PRA are to assess the risks to the public and onsite workers posed by the operation of N Reactor, to identify modifications to the plant that could reduce the overall risk, and to compare those risks to the proposed DOE and Nuclear Regulatory Commission (NRC) quantitative safety goals. This paper presents the methodology adopted by Westinghouse Hanford and SNL for estimating individual health risks, and the comparison of the N Reactor results and DOE quantitative nuclear safety guidelines. This paper is devoted to DOE quantitative safety guidelines interpretation and comparison; the NRC safety objectives are also presented in order to compare N Reactor results to commercial nuclear power plants included in the NUREG-1150 study. 7 refs., 7 tabs.

Wang., O.S.; Zentner, M.D.; Rainey, T.E.

1990-06-01T23:59:59.000Z

306

Draft Risk Assessment Processes  

Science Conference Proceedings (OSTI)

A cyber security risk assessment process includes the characterization of assets. A thorough asset characterization process can lead to a more robust threat characterization. One means of enhancing the thoroughness of the asset-and-threat characterization processes is to improve the characterization mechanisms. This technical update supports this approach by providing the results of initial research and developing a framework to support further analysis.This project builds upon the work ...

2012-12-28T23:59:59.000Z

307

Localized Dose Enhancement to Tumor Blood Vessel Endothelial Cells via Megavoltage X-rays and Targeted Gold Nanoparticles: New Potential for External Beam Radiotherapy  

Science Conference Proceedings (OSTI)

Purpose: Tumor endothelial cell damage during radiation therapy may contribute significantly to tumor eradication and treatment efficacy. Gold nanoparticles (AuNPs) delivered preferentially to the walls of tumor blood vessels produce low-energy, short-range photoelectrons during external beam radiotherapy, boosting dose to the tumor microvasculature. In this study dosimetry at the single-cell level is used to estimate the anticipated AuNP-mediated dose enhancement to tumor endothelial cells during 6-MV X-ray irradiation. Methods and Materials: Endothelial cells are modeled as thin slabs with 100-nm-diameter AuNPs attached within the blood vessel. The number of photoelectrons emitted per AuNP per gray of X-rays is computed at multiple points along the external beam central axis by use of a Monte Carlo-generated energy fluence spectrum. The energy deposited from AuNP emissions to the endothelium is calculated based on an analytic method incorporating the energy-loss formula of Cole. The endothelial dose enhancement factor (EDEF) is the ratio of the overall (externally plus internally generated) dose to endothelial cells in the presence of AuNPs to the dose without AuNPs (from the external beam only). Results: At 20-cm depth, the EDEF is 1.7 (70% dose increase) for an intravascular AuNP concentration of 30 mg/g. Most of this dose enhancement arises from the low-energy (approximately 100 keV) portion of the linear accelerator X-ray spectrum. Furthermore, for AuNP concentrations ranging from 7 to 140 mg/g, EDEF values of 1.2 to 4.4 (20-340% dose increase) are calculated. Conclusions: In contrast to calculations assuming that AuNPs distributed homogeneously throughout the target volume (macrodosimetry), our cellular microdosimetry calculations predict a major dose enhancement to tumor microvasculature from conventional linear accelerator X-rays. This effect may enable the delivery of ablative therapeutic doses to these sensitive microstructures while maintaining established dose constraints for the organs at risk.

Berbeco, Ross I., E-mail: rberbeco@partners.org [Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA (United States); Ngwa, Wilfred; Makrigiorgos, G. Mike [Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA (United States)

2011-09-01T23:59:59.000Z

308

External Examiner: Dr. External Examiner  

E-Print Network (OSTI)

Permission is herewith granted to Dalhousie University to circulate and to have copied for non-commercial purposes, at its discretion, the above title upon the request of individuals or institutions. I understand that my thesis will be electronically available to the public. The author reserves other publication rights, and neither the thesis nor extensive extracts from it may be printed or otherwise reproduced without the author’s written permission. The author attests that permission has been obtained for the use of any copyrighted material appearing in the thesis (other than brief excerpts requiring only proper acknowledgement in scholarly writing), and that all such use is clearly acknowledged.

Noah Body; Dr. Supervisor Prof; Examining Committee; Noah Body

2010-01-01T23:59:59.000Z

309

Risk assessment handbook  

SciTech Connect

The Probabilistic Risk Assessment Unit at EG G Idaho has developed this handbook to provide guidance to a facility manager exploring the potential benefit to be gained by performance of a risk assessment properly scoped to meet local needs. This document is designed to help the manager control the resources expended commensurate with the risks being managed and to assure that the products can be used programmatically to support future needs in order to derive maximum beneflt from the resources expended. We present a logical and functional mapping scheme between several discrete phases of project definition to ensure that a potential customer, working with an analyst, is able to define the areas of interest and that appropriate methods are employed in the analysis. In addition the handbook is written to provide a high-level perspective for the analyst. Previously, the needed information was either scattered or existed only in the minds of experienced analysts. By compiling this information and exploring the breadth of knowledge which exists within the members of the PRA Unit, the functional relationships between the customers' needs and the product have been established.

Farmer, F.G.; Jones, J.L.; Hunt, R.N.; Roush, M.L.; Wierman, T.E.

1990-09-01T23:59:59.000Z

310

Risk assessment handbook  

SciTech Connect

The Probabilistic Risk Assessment Unit at EG&G Idaho has developed this handbook to provide guidance to a facility manager exploring the potential benefit to be gained by performance of a risk assessment properly scoped to meet local needs. This document is designed to help the manager control the resources expended commensurate with the risks being managed and to assure that the products can be used programmatically to support future needs in order to derive maximum beneflt from the resources expended. We present a logical and functional mapping scheme between several discrete phases of project definition to ensure that a potential customer, working with an analyst, is able to define the areas of interest and that appropriate methods are employed in the analysis. In addition the handbook is written to provide a high-level perspective for the analyst. Previously, the needed information was either scattered or existed only in the minds of experienced analysts. By compiling this information and exploring the breadth of knowledge which exists within the members of the PRA Unit, the functional relationships between the customers` needs and the product have been established.

Farmer, F.G.; Jones, J.L.; Hunt, R.N.; Roush, M.L.; Wierman, T.E.

1990-09-01T23:59:59.000Z

311

The Risk Assessment Information System  

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

RAIS Risk Exposure Models for Radionuclides User's Guide RAIS Risk Exposure Models for Radionuclides User's Guide Note The RAIS presents this updated Risk calculator in response to the following: incorporating chemical-specific parameters from the lastest EPI release, addition of air as a media, and conversion to a new database structure. The previous RAIS Risk calculator presented Risks for radionuclides and chemcials together. Recent development of chemical and radionuclide exposure equations has necessitated that the RAIS separate the chemicals and the radionuclides. To calculate risks for chemicals, use the RAIS Risk Exposure Models for Chemicals calculator. Currently the agricultural equations for the RAIS chemical and radionuclide risk calculators are identical. The EPA's Preliminary Remediation Goals for

312

Probabilistic Risk Assessment - A Bibliography  

Science Conference Proceedings (OSTI)

Probabilistic risk analysis is an integration of failure modes and effects analysis (FEMA), fault tree analysis and other techniques to assess the potential for failure and to find ways to reduce risk. This bibliography references 160 documents in the ...

Program NASA Scientific and Technical Information

2000-07-01T23:59:59.000Z

313

The Risk Assessment Information System  

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

RAIS Chemical Risk Calculator RAIS Chemical Soil to Ground Water Calculator Radionuclide Calculators Preliminary Remediation Goals (PRGs) Radionuclide Calculator RAIS...

314

Enterprise level IT risk management  

Science Conference Proceedings (OSTI)

Increasing IT budget and over-dependence of business on IT infra-structure makes risk management a critical component of enterprise management. The creation and sustenance of an IT risk management framework is one of the crucial and challenging tasks ... Keywords: enterprise level, information technology, risk management

Nadhirah Azizi; Khairuddin Hashim

2008-11-01T23:59:59.000Z

315

CALIFORNIA STATE UNIVERSITY, RISK MANAGEMENT  

E-Print Network (OSTI)

performance within the CSU System. #12;2004 ­ 2005 Risk Management Annual Report Page 3 · Chaired the CSU-04 2004-05 Fullerton System-Wide #12;2004 ­ 2005 Risk Management Annual Report Page 10 University · International travel · Facilities use · Deferred maintenance Working with the University's Risk Management

de Lijser, Peter

316

Belief-based risk analysis  

Science Conference Proceedings (OSTI)

This paper describes a method for risk analysis based on the approach used in CRAMM, but instead of using discrete measures for threats and vulnerabilities and look-up tables to derive levels of risk, it uses subjective beliefs about threats and vulnerabilities ... Keywords: belief calculus, risk analysis, security

Audun Jřsang; Daniel Bradley; Svein J. Knapskog

2004-01-01T23:59:59.000Z

317

Brushed permanent magnet DC MLC motor operation in an external magnetic field  

SciTech Connect

Purpose: Linac-MR systems for real-time image-guided radiotherapy will utilize the multileaf collimators (MLCs) to perform conformal radiotherapy and tumor tracking. The MLCs would be exposed to the external fringe magnetic fields of the linac-MR hybrid systems. Therefore, an experimental investigation of the effect of an external magnetic field on the brushed permanent magnet DC motors used in some MLC systems was performed. Methods: The changes in motor speed and current were measured for varying external magnetic field strengths up to 2000 G generated by an EEV electromagnet. These changes in motor characteristics were measured for three orientations of the motor in the external magnetic field, mimicking changes in motor orientations due to installation and/or collimator rotations. In addition, the functionality of the associated magnetic motor encoder was tested. The tested motors are used with the Varian 120 leaf Millennium MLC (Maxon Motor half leaf and full leaf motors) and the Varian 52 leaf MKII MLC (MicroMo Electronics leaf motor) including a carriage motor (MicroMo Electronics). Results: In most cases, the magnetic encoder of the motors failed prior to any damage to the gearbox or the permanent magnet motor itself. This sets an upper limit of the external magnetic field strength on the motor function. The measured limits of the external magnetic fields were found to vary by the motor type. The leaf motor used with a Varian 52 leaf MKII MLC system tolerated up to 450{+-}10 G. The carriage motor tolerated up to 2000{+-}10 G field. The motors used with the Varian 120 leaf Millennium MLC system were found to tolerate a maximum of 600{+-}10 G. Conclusions: The current Varian MLC system motors can be used for real-time image-guided radiotherapy coupled to a linac-MR system, provided the fringe magnetic fields at their locations are below the determined tolerance levels. With the fringe magnetic fields of linac-MR systems expected to be larger than the tolerance levels determined, some form of magnetic shielding would be required.

Yun, J.; St Aubin, J.; Rathee, S.; Fallone, B. G. [Department of Physics, University of Alberta, 11322-89 Avenue, Edmonton, Alberta T6G 2G7 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); Department of Medical Physics, Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); Department of Physics, University of Alberta, 11322-89 Avenue, Edmonton, Alberta T6G 2G7 (Canada); Department of Medical Physics, Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada)

2010-05-15T23:59:59.000Z

318

NGNP Risk Management Database: A Model for Managing Risk  

Science Conference Proceedings (OSTI)

To facilitate the implementation of the Risk Management Plan, the Next Generation Nuclear Plant (NGNP) Project has developed and employed an analytical software tool called the NGNP Risk Management System (RMS). A relational database developed in Microsoft® Access, the RMS provides conventional database utility including data maintenance, archiving, configuration control, and query ability. Additionally, the tool’s design provides a number of unique capabilities specifically designed to facilitate the development and execution of activities outlined in the Risk Management Plan. Specifically, the RMS provides the capability to establish the risk baseline, document and analyze the risk reduction plan, track the current risk reduction status, organize risks by reference configuration system, subsystem, and component (SSC) and Area, and increase the level of NGNP decision making.

John Collins

2009-09-01T23:59:59.000Z

319

Environmental externalities: An ASEAN application to coal-based power generation. [Association of South East Asian Nations (ASEAN)  

Science Conference Proceedings (OSTI)

Significant benefits to human health that result from emissions control programs may justify the costs of pollution control policies. Many scientists, economists, risk analysts, and policymakers believe that comparisons of the benefits with the costs of pollution control demonstrate that the US stationary source, air emissions control program is justified. This justification is based upon pronounced benefits to human health, especially from controlling suspended particulates and sulfur compounds. Market decisions are usually made on the basis of a consideration of traditional costs such as capital, operating and maintenance, fuel costs, and fixed charges. Social costs, which could be significant, are not incorporated explicitly into such decisions. These social costs could result in a net reduction in the welfare of individuals, and of society as a whole. Because these social costs and their effects are not represented in the price of energy, individual have no way to explicitly value them; hence, they remain unaccounted for in market decisions. By accounting for external costs, the selection of energy sources and production of energy products can lead to and equilibrium, where the total cost of energy and energy products, together with resulting social costs, can be brought to an economic minimum. The concept of an air emissions control program is of interest to the ASEAN countries (Brunei, Indonesia, Malaysia, the Philippines, Singapore, and Thailand) and their governments, especially if such a program could be justified in cost-benefit terms and shown to be directly applicable to ASEAN conditions. It is the intent of the effort described herein to demonstrate that technical options are available to control emissions from coal-based, electric power plants and that that costs of these options may be justified in cost-benefit terms.

Szpunar, C.B.; Gillette, J.L.

1992-06-01T23:59:59.000Z

320

LPP Risk Management Plan | Department of Energy  

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

Plan More Documents & Publications Software Development Risk Assessment High Risk Plan SC Introduction to Risk Management Energy.gov Careers & Internships For Staff &...

Note: This page contains sample records for the topic "risk external rs" 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

EMAB Risk Subcommittee Interim Report  

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

FIRST INTERIM REPORT TO THE ENVIRONMENTAL MANAGEMENT ADVISORY BOARD Incorporating Risk and Sustainability into Decision Making Submitted by the EMAB Risk Subcommittee December 3, 2012 Background: In December 2011, then Acting Assistant Secretary for Environmental Management David Huizenga, asked the Environmental Management Advisory Board (EMAB or Board) to establish a Risk Subcommittee. In February 2012, the Subcommittee's Work Plan was approved. Under the Work Plan, the purpose of the Subcommittee is to evaluate "risk-informed decision making," specifically whether the prioritization tool developed by the Consortium for Risk Evaluation with Stakeholder Participation (CRESP) for use at the Oak Ridge Reservation (Oak Ridge) is one that

322

CEA Â… External Power Supplies, CCE Overview and Update presentation, dated June 28, 2011.  

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

CEA - External Power CEA - External Power Supplies CCE Overview and Update June 28, 2011 1 2 3 4 5 6 Agenda Certified Ratings Basic Models and Design Families Manufacturer and Importer Enforcement Overview DOE's New Initiatives How to Submit Questions 2 | Building Technologies Program & General Counsel's Office of Enforcement eere.energy.gov Manufacturer Explanation A manufacturer * Is the domestic manufacturer or an importer. * May produce equipment at multiple facilities in various locations with the same model characteristics. * May group individual models into basic models at the manufacturer's discretion. * May elect to use a third party (e g certified laboratory or * May elect to use a third-party (e.g., certified laboratory or foreign OEM) for testing and certification submission.

323

Federal Guidance No. 12: External Exposure to Radionuclides in Air, Water, and Soil  

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

402-R-93-081 402-R-93-081 FEDERAL GUIDANCE REPORT NO. 12 EXTERNAL EXPOSURE TO RADIONUCLIDES IN AIR, WATER, AND SOIL Keith F. Eckerman and Jeffrey C. Ryman September 1993 ERRATUM p. 218 Table C.2. Scaled External Bremsstrahlung from Electrons for Water For T = 1000.0 and k/T = 0.10, the table entry .0223 should read 1.0223. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned

324

Dispersion relations of externally and thermally excited dust lattice modes in 2D complex plasma crystals  

SciTech Connect

The dispersion relations of the externally and thermally (naturally) excited dust lattice modes (both longitudinal and transverse) in two-dimensional Debye-Yukawa complex plasma crystals are investigated. The dispersion relations are calculated numerically by taking the neutral gas damping effects into account and the numerical results are in agreement with the experimental data given by Nunomura et al.[Phys. Rev. E 65, 066402 (2002)]. It is found that for the mode excited by an external disturbance with a real frequency, the dispersion properties are changed at a critical frequency near where the group velocity of the mode goes to zero. Therefore, the high frequency branch with negative dispersion cannot be reached. In contrast, for the thermally excited mode, the dispersion curve can extend all the way to the negative dispersion region, while a 'cut-off' wave number exists at the long wavelength end of the dispersion in the transverse mode.

Yang Xuefeng; Cui Jian; Zhang Yuan [School of Mathematical Sciences, Dalian University of Technology, Dalian 116024 (China); Liu Yue [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

2012-07-15T23:59:59.000Z

325

Photovoltaic Degradation Risk: Preprint  

SciTech Connect

The ability to accurately predict power delivery over the course of time is of vital importance to the growth of the photovoltaic (PV) industry. Important cost drivers include the efficiency with which sunlight is converted into power, how this relationship changes over time, and the uncertainty in this prediction. An accurate quantification of power decline over time, also known as degradation rate, is essential to all stakeholders - utility companies, integrators, investors, and researchers alike. In this paper we use a statistical approach based on historical data to quantify degradation rates, discern trends and quantify risks related to measurement uncertainties, number of measurements and methodologies.

Jordan, D. C.; Kurtz, S. R.

2012-04-01T23:59:59.000Z

326

The Risk Assessment Information System  

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

Risk Exposure Models for Chemicals User's Guide Risk Exposure Models for Chemicals User's Guide 1. Introduction The purpose of this calculator is to assist Remedial Project Managers (RPMs), On Scene Coordinators (OSC's), risk assessors and others involved in decision-making at hazardous waste sites and to determine whether levels of contamination found at the site may warrant further investigation or site cleanup, or whether no further investigation or action may be required. The risk values presented on this site are chemical-specific values for individual contaminants in air, water, soil and biota that may warrant further investigation or site cleanup. It should be noted that the risks in this calculator are based upon human health risk and do not address potential ecological risk. Some sites in sensitive ecological settings may also need to be evaluated for potential

327

Energy Systems Integration Facility (ESIF) External Stakeholders Workshop: Workshop Proceedings, 9 October 2008, Golden, Colorado  

Science Conference Proceedings (OSTI)

On October 9, 2008, NREL hosted a workshop to provide an opportunity for external stakeholders to offer insights and recommendations on the design and functionality of DOE's planned Energy Systems Infrastructure Facility (ESIF). The goal was to ensure that the planning for the ESIF effectively addresses the most critical barriers to large-scale energy efficiency (EE) and renewable energy (RE) deployment. This technical report documents the ESIF workshop proceedings.

Komomua, C.; Kroposki, B.; Mooney, D.; Stoffel, T.; Parsons, B.; Hammond, S.; Kutscher, C.; Remick, R.; Sverdrup, G.; Hawsey, R.; Pacheco, M.

2009-01-01T23:59:59.000Z

328

Utility-Interconnected Photovoltaic Systems: Evaluating the Rationale for the Utility-Accessible External Disconnect Switch  

DOE Green Energy (OSTI)

The utility-accessible alternating current (AC) external disconnect switch (EDS) for distributed generators, including photovoltaic (PV) systems, is a hardware feature that allows a utility?s employees to manually disconnect a customer-owned generator from the electricity grid. This paper examines the utility-accessible EDS debate in the context of utility-interactive PV systems for residential and small commercial installations. It also evaluates the rationale for EDS requirements.

Coddington, M.; Margolis, R.M.; Aabakken, J.

2008-01-01T23:59:59.000Z

329

Asymptotic analysis of random matrices with external source and a family of algebraic curves  

E-Print Network (OSTI)

We present a set of conditions which, if satisfied, provide for a complete asymptotic analysis of random matrices with source term containing two distinct eigenvalues. These conditions are shown to be equivalent to the existence of a particular algebraic curve. For the case of a quartic external field, the curve in question is proven to exist, yielding precise asymptotic information about the limiting mean density of eigenvalues, as well as bulk and edge universality.

K. D. T-R McLaughlin

2006-10-20T23:59:59.000Z

330

Angle-resolved scattering spectroscopy of explosives using an external cavity quantum cascade laser  

Science Conference Proceedings (OSTI)

Investigation of angle-resolved scattering from solid explosives residues on a car door for non-contact sensing geometries. Illumination with a mid-infrared external cavity quantum cascade laser tuning between 7 and 8 microns was detected both with a sensitive single point detector and a hyperspectral imaging camera. Spectral scattering phenomena were discussed and possibilities for hyperspectral imaging at large scattering angles were outlined.

Suter, Jonathan D.; Bernacki, Bruce E.; Phillips, Mark C.

2012-04-01T23:59:59.000Z

331

Emittance studies of the SNS external-antenna H- ion source  

Science Conference Proceedings (OSTI)

A new Allison-type emittance scanner has been built to characterize the ion sources and low energy beam transport systems at SNS. In this work, the emittance characteristics of the H- beam produced with the external-antenna RF-driven ion source and transported through the 2-lens electrostatic LEBT are studied. The beam emittance dependence on beam intensity, extraction parameters, and the evolution of the emittance and twiss parameters over beam pulse duration are presented.

Han, Baoxi [ORNL; Stockli, Martin P [ORNL; Welton, Robert F [ORNL; Pennisi, Terry R [ORNL; Murray Jr, S N [ORNL; Santana, Manuel [ORNL; Long, Cary D [ORNL

2010-01-01T23:59:59.000Z

332

The influence of external fields on the energy of two interacting electrons in a quantum dot  

SciTech Connect

In this paper, the effects of both an external electric field and an external magnetic field on the energy of two interacting electrons in a two-dimensional parabolic quantum dot are investigated for various quantum states (n,|m|) in the framework of the asymptotic iteration method. It is seen that the energy eigenvalues increase monotonically with increasing electric and magnetic field strengths in the weak- and strong-field regimes. However, the behavior is slightly different in the two regimes. Whereas the energy values increase linearly in the low-electric-field regime, they increase much more than linearly in the strong-field regime. This paper demonstrates that it is possible to obtain the energy eigenvalues of two electrons in a two-dimensional parabolic quantum dot not only for cases with and without an electric field and with and without a magnetic field, but also for cases where magnetic and electric fields (either strong or weak) are present simultaneously. - Highlights: Black-Right-Pointing-Pointer The energy eigenvalues of two electrons in a 2D quantum dot in external electric and magnetic fields are discussed. Black-Right-Pointing-Pointer The effects of the fields on the energies are obtained for strong and weak fields. Black-Right-Pointing-Pointer The energies increase monotonically with increasing field. Black-Right-Pointing-Pointer The increase in the energies in weak fields has a different behavior from that in strong fields. Black-Right-Pointing-Pointer The method used here is very efficient for discovering the effects of external fields on different states.

Soylu, A., E-mail: asimsoylu@gmail.com

2012-12-15T23:59:59.000Z

333

How can an external application get access to OpenEI images and thumbnails?  

Open Energy Info (EERE)

How can an external application get access to OpenEI images and thumbnails? How can an external application get access to OpenEI images and thumbnails? Home > Groups > Developer I'm building an external application in Simile Exhibit. Through an Ask query (http://en.openei.org/wiki/Special:Ask), I can get the name of a file. But how do I present an image of that file? Submitted by Rmckeel on 18 October, 2012 - 07:04 1 answer Points: 0 If you know the name of the file and want the original uploaded size, try the built-in function http://en.openei.org/wiki/Special:FilePath. If you want a specific size, try http://en.openei.org/wiki/Special:FilepathThumbnail. For instance, you can have the app go here: http://en.openei.org/wiki/Special:FilepathThumbnail?file=NREL.png&max-width=200 which will produce the NREL logo image with a max width of 200 pixels.

334

Savings Potential of ENERGY STAR(R) External Power Adapters andBattery Chargers  

SciTech Connect

External power adapters may lose 10 to 70 percent of theenergy they consume, dissipated as heat rather than converted into usefulenergy. Battery charging systems have more avenues for losses: inaddition to power conversion losses, power is consumed by the chargingcircuitry, and additional power may be needed after the battery is fullcharged to balance self-discharge. In 2005, the Environmental ProtectionAgency launched a new ENERGY STAR(R) label for external power supplies(EPSs) that convert line-voltage AC electricity into low-voltage DCelectricity for certain electronic devices. The specification includedpower supplies for products with battery charging functions (e.g. laptopsand cell phones), but excluded others. In January 2006, a separatespecification was issued for battery charging systems contained primarilyin small household appliances and power tools. In addition to the ENERGYSTAR(R) label, the state of California will implement minimum energyperformance standards for EPSs in 2007, and similar standards for EPSsand battery chargers are in development at the national level.Many of theproducts covered by these policies use relatively little power and havemodest per-unit savings potential compared to conventional energyefficiency targets. But with an estimated 1.5 billion adapters and 230million battery charging systems in use in the United States, theaggregate savings potential is quite high. This paper presents estimatesof the savings potential for external power adapters and battery chargingsystems through 2025.

Webber, Carrie; Korn, David; Sanchez, Marla

2007-02-28T23:59:59.000Z

335

Collateral Risk Analytics for Energy Trading and Portfolio Risk Management  

Science Conference Proceedings (OSTI)

This report describes the need for a strong collateral risk management function as an integral part of an energy company’s risk management program. It reviews the basics of margining and collateral both in over-the-counter markets and on exchanges. In addition, it details the technology available to measure collateral risk properly. Then it reviews the recent efforts to regulate OTC derivatives, the potential impact that it could have on energy companies’ management of cash collateral, and strategies tha...

2010-12-21T23:59:59.000Z

336

Real time chemical exposure and risk monitor  

DOE Patents (OSTI)

The apparatus of the present invention is a combination of a breath interface and an external exposure dosimeter interface to a chemical analysis device, all controlled by an electronic processor for quantitatively analyzing chemical analysis data from both the breath interface and the external exposure dosimeter for determining internal tissue dose. The method of the present invention is a combination of steps of measuring an external dose, measuring breath content, then analyzing the external dose and breath content and determining internal tissue dose. 7 figs.

Thrall, K.D.; Kenny, D.V.; Endres, G.W.R.; Sisk, D.R.

1997-07-08T23:59:59.000Z

337

The Risk Assessment Information System  

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

Risk Assessment Documents - ORR Risk Assessment Documents - ORR Bullet Baseline Risk Assessments Bullet Remedial Investigation/Feasibility Study Environmental Assessment Report South Campus Facility, Oak Ridge Tenn [DOE/OR/02-1274&D] Bullet Baseline Risk Assessment for Lower East Fork Poplar Creek [DOE/OR/1119 & D2 & V2] Bullet Remedial Investigation/ Feasibility Study Report for Lower Watts Bar Reservoir Operable Unit [DOE/OR/01 1282 & D1] [ORNL/ER-2] Bullet The Utility of Existing Data Conducting a CERCLA Baseline Risk Assessment for Lower Watts Bar Reservoir (draft) [ORNL/ER-?] Bullet East Fork Poplar Creek Sewer Line Beltway Remedial Investigation Report [DOE/OR/02-1119&D2] Bullet Screening Risk Assessments Bullet Preliminary Assessment of Radiation Doses to the Public from Cesium

338

Major Risk Factors Integrated Facility Disposition Project - Oak Ridge  

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

O O O f f f f i i c c e e o o f f E E n n v v i i r r o o n n m m e e n n t t a a l l M M a a n n a a g g e e m m e e n n t t ( ( E E M M ) ) E E n n g g i i n n e e e e r r i i n n g g a a n n d d T T e e c c h h n n o o l l o o g g y y External Technical Review (ETR) Report Major Risk Factors Integrated Facility Disposition Project (IFDP) Oak Ridge, TN AUGUST 1, 2008 Acknowledgement The External Technical Review of the Integrated Facility Disposition Project was conducted simultaneous to other assessments and visits. The ETR Team wishes to note the outstanding support received from all parties involved in the review, including the DOE Oak Ridge Office, the National Nuclear Security Administration Y-12 Site Office, UT-Battelle, B&W Y-12, and the Professional Project Services, Inc. (Pro2Serve). The ETR Team feels compelled to note, and

339

Relative risks of energy sources  

Science Conference Proceedings (OSTI)

This paper compares the risks associated with various energy sources in an attempt to demonstrate the relative safety of nuclear energy. (JEF)

Haire, M.J.

1990-01-01T23:59:59.000Z

340

Pollutant Exposure and Health Risk  

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

TEMcKone@lbl.gov (510) 486-6163 Links Exposure and Risk Assessment Group Batteries and Fuel Cells Buildings Energy Efficiency Electricity Grid Energy Analysis Energy...

Note: This page contains sample records for the topic "risk external rs" 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

The Risk Assessment Information System  

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

U.S. EPA, Washington, D.C. 1992. Risk Assessment Forum. Wildlife Exposure Factors Handbook. Vol. I. United Staes Environmental Protection Agency. Office of Research and...

342

ORISE: Crisis and Risk Communication  

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

and Risk Communication Because a natural disaster, act of terrorism or other public emergency can happen without notice, having a planned, coordinated communication effort is...

343

Optimization with multivariate conditional value-at-risk constraints  

E-Print Network (OSTI)

h(c) µ(dc) = ? ...... the difference of two CVaRs, again leading to a DC formulation. ..... Chicago, Bay Area, Washington DC-MD-VA-WV, and Los Angeles-Long ...

344

The dynamics of forming a technology based start-up : how founders use external advice to improve their firm's chance of succeeding  

E-Print Network (OSTI)

External advice can be a valuable resource for founders of high technology startup companies. As with any resource, the pursuit and efficient use of the external advice resource is one of the greatest challenges for founders. ...

Cravalho, Nick

2007-01-01T23:59:59.000Z

345

Essays on Externalities and Uncertainty: On the Role of Disaster Insurance in Improving Welfare  

E-Print Network (OSTI)

Rice. “Risk and the Value of Bt Corn. ” American Journal ofThe Impact of the Western Corn Rootworm Soybean Variant insimulation section, for both corn and wheat farmers. For the

Sproul, Thomas Wendell

2011-01-01T23:59:59.000Z

346

Middle East and Central Asia Department Oil Prices, External Income, and Growth: Lessons from Jordan 1  

E-Print Network (OSTI)

This Working Paper should not be reported as representing the views of the IMF. The views expressed in this Working Paper are those of the author(s) and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the author(s) and are published to elicit comments and to further debate. This paper extends the long-run growth model of Esfahani et al. (2009) to a labor exporting country that receives large inflows of external income—the sum of remittances, FDI and general government transfers—from major oil-exporting economies. The theoretical model predicts real oil prices to be one of the main long-run drivers of real output. Using quarterly data between 1979 and 2009 on core macroeconomic variables for Jordan and a number of key foreign variables, we identify two long-run relationships: an output equation as predicted by theory and an equation linking foreign and domestic inflation rates. It is shown that real output in the long run is shaped by: (i) oil prices through their impact on external income and in turn on capital accumulation, and (ii) technological transfers through foreign output. The empirical analysis of the paper confirms the hypothesis that a large share of Jordan's output volatility can be associated with fluctuations in net income received from abroad. External factors, however, cannot be relied upon to provide similar growth stimuli in the future, and therefore it will be important to diversify the sources of growth in order to achieve a high and sustained level of income.

Prepared Kamiar Mohaddes; Mehdi Raissi

2011-01-01T23:59:59.000Z

347

Water-equivalent dosimeter array for small-field external beam radiotherapy  

SciTech Connect

With the increasing complexity of dose patterns external beam radiotherapy, there is a great need for new types of dosimeters. We studied the first prototype of a new dosimeter array consisting of water-equivalent plastic scintillating fibers for dose measurement in external beam radiotherapy. We found that this array allows precise, rapid dose evaluation of small photon fields. Starting with a dosimeter system constructed with a single scintillating fiber coupled to a clear optical fiber and read using a charge coupled device camera, we looked at the dosimeter's spatial resolution under small radiation fields and angular dependence. Afterward, we analyzed the camera's light collection to determine the maximum array size that could be built. Finally, we developed a prototype made of ten scintillating fiber detectors to study the behavior and precision of this system in simple dosimetric situations. The scintillation detector showed no measurable angular dependence. Comparison of the scintillation detector and a small-volume ion chamber showed agreement except for 1x1 and 0.5x5.0 cm{sup 2} fields where the output factor measured by the scintillator was higher. The actual field of view of the camera could accept more than 4000 scintillating fiber detectors simultaneously. Evaluation of the dose profile and depth dose curve using a prototype with ten scintillating fiber detectors showed precise, rapid dose evaluation even with placement of more than 75 optical fibers in the field to simulate what would happen in a larger array. We concluded that this scintillating fiber dosimeter array is a valuable tool for dose measurement in external beam radiotherapy. It possesses the qualities necessary to evaluate small and irregular fields with various incident angles such as those encountered in intensity-modulated radiotherapy, radiosurgery, and tomotherapy.

Archambault, Louis; Beddar, A. Sam; Gingras, Luc; Lacroix, Frederic; Roy, Rene; Beaulieu, Luc [Department of Radiation Physics, University of Texas M. D. Anderson Cancer Center, Houston, Texas, 77030 (United States) and Departement de physique, de genie physique et d'optique, Universite Laval, Quebec City, Quebec (Canada); Department of Radiation Physics, University of Texas M. D. Anderson Cancer Center, Houston, Texas, 77030 (United States); Departement de physique, de genie physique et d'optique, Universite Laval, Quebec City, Quebec (Canada) and Departement de Radio-Oncologie, Hotel Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, Quebec City, Quebec (Canada); Departement de physique, de genie physique et d'optique, Universite Laval, Quebec City, Quebec (Canada); Departement de physique, de genie physique et d'optique, Universite Laval, Quebec, Quebec City (Canada) and Departement de Radio-Oncologie, Hotel Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, Quebec City, Quebec (Canada)

2007-05-15T23:59:59.000Z

348

Market response to external events and interventions in spherical minority games  

E-Print Network (OSTI)

We solve the dynamics of large spherical Minority Games (MG) in the presence of non-negligible time dependent external contributions to the overall market bid. The latter represent the actions of market regulators, or other major natural or political events that impact on the market. In contrast to non-spherical MGs, the spherical formulation allows one to derive closed dynamical order parameter equations in explicit form and work out the market's response to such events fully analytically. We focus on a comparison between the response to stationary versus oscillating market interventions, and reveal profound and partially unexpected differences in terms of transition lines and the volatility.

Papadopoulos, P

2008-01-01T23:59:59.000Z

349

The Design and Development of An Externally Fired Steam Injected Gas Turbine for Cogeneration  

E-Print Network (OSTI)

This paper describes the theoretical background and the design and development of a prototype externally fired steam injected (ECSI) gas turbine which has a potential to utilize lower grade fuels. The system is designed around a 2 shaft 360 HP gas turbine. Several modifications to the gas turbine (Brayton Cycle) and the effects of cycle parameters such as pressure ratio and turbine inlet temperature are discussed. Steams injected cycles are examined and the concept of the ECSI gas turbine is introduced. The discussion includes criteria for selecting a suitable heat exchanger and considerations for start-up cycles. The feasibility of the concept and discussion of problem areas in the prototype are discussed.

Boyce, M. P.; Meher-Homji, C.; Ford, D.

1981-01-01T23:59:59.000Z

350

Effects of external boost compression on gas turbine performance in an advanced CPFBC application  

SciTech Connect

When a commercial gas turbine, designed and optimized for natural gas fuel, is used in an Advanced Circulating Pressurized Fluid Bed Combustor (CPFBC) application, changes occur that affect both the thermodynamic cycle and the performance of the individual components. These come principally from the increased pressure drop encountered between the compressor discharge and expander inlet, with changes in gas properties and flow rates for the hot combustion products having secondary effects. Net effect is that power output can be reduced and significant design and/or operational compromises may be required for the gas turbine. Application of an external boost compressor can mitigate these effects.

Freier, M.D. [USDOE Morgantown Energy Technology Center, WV (United States); Goldstein, H.N.; White, J.S. [Parsons Power Group, Inc., Reading, PA (United States)

1996-12-31T23:59:59.000Z

351

Electronic excitations and transport in aperiodic sequences of quantum dots in external electric and magnetic fields  

Science Conference Proceedings (OSTI)

The energy spectra and transport of electronic excitations in one-dimensional aperiodic sequences of quantum dots of Thue-Morse and double-periodic type are studied. The influence of external magnetic and electric fields on the energy spectra and transport is considered. For aperiodic sequences of quantum dots, in contrast to aperiodic sequences of atoms, the influence of relatively small magnetic and electric fields is essential, but localization occurs at finite values of the perturbations. The transmission coefficient is determined using the quasiclassical approximation with the Coulomb blockade taken into account. The resonance tunneling is studied.

Korotaev, P. Yu., E-mail: pvl.korotaev@gmail.com; Kaputkina, N. E. [National University of Science and Technology 'MISIS' (Russian Federation); Lozovik, Yu. E. [Russian Academy of Sciences, Institute of Spectroscopy (Russian Federation); Vekilov, Yu. Kh. [National University of Science and Technology 'MISIS' (Russian Federation)

2011-10-15T23:59:59.000Z

352

Externally launched ion Berstein wave in the ACT-1 toroidal device  

DOE Green Energy (OSTI)

In a hydrogen plasma (T/sub e/ = 2.5 eV, T/sub i/ = 1.5 eV), excitation of ion Bernstein waves by an externally placed electrostatic antenna has been investigated for ..omega.. approx. = 2 ..cap omega../sub i/. Mode transformation of the electron plasma wave at ..omega.. approx. = ..omega../sub pi/ without observable reflection was observed, followed by strong excitation of the ion Bernstein wave. Detailed measurements of k/sub perpendicular to/(..omega..,k/sub parallel/) and of the wave packet trajectory show excellent agreement with theory.

Ono, M.; Wong, K.L.

1980-06-01T23:59:59.000Z

353

Single-molecule interfacial electron transfer dynamics manipulated by external electric current  

E-Print Network (OSTI)

Interfacial electron transfer (IET) dynamics in 1,1'-dioctadecyl-3, 3, 3', 3'-tetramethylindodicarbocyanine (DiD) dye molecules / indium tin oxide (ITO) film system have been probed at the ensemble and single-molecule level by recording the change of fluorescence emission intensity. By comparing the difference of the external electric current (EEC) dependence of lifetime and intensity for enambles and single molecules, it is shown that the single-molecule probe can effcienly demonstrate the IET dynamics. The backward electron transfer and electron transfer of ground state induce the single molecules fluorescence quenching when an EEC is applied to ITO film.

Zhang, Guofeng; Chen, Ruiyun; Gao, Yan; Wang, Xiaobo; Jia, Suotang

2011-01-01T23:59:59.000Z

354

Development of an External Fuel Processor for a Solid Oxide Fuel Cell  

DOE Green Energy (OSTI)

A 250 kW External Fuel Processor was developed and tested that will supply the gases needed by a pipeline natural gas fueled, solid oxide fuel cell during all modes of operation. The fuel processor consists of three major subsystems--a desulfurizer to remove fuel sulfur to an acceptable level, a synthesis gas generator to support plant heat-up and low load fuel cell operations, and a start gas generator to supply a non-flammable, reducing gas to the fuel cell during startup and shutdown operations. The desulfurization subsystem uses a selective catalytic sulfur oxidation process that was developed for operation at elevated pressure and removes the fuel sulfur to a total sulfur content of less than 80 ppbv. The synthesis gas generation subsystem uses a waterless, catalytic partial oxidation reactor to produce a hydrogen-rich mixture from the natural gas and air. An operating window was defined that allows carbon-free operation while maintaining catalyst temperatures that will ensure long-life of the reactor. The start gas subsystem generates an oxygen-free, reducing gas from the pipeline natural gas using a low-temperature combustion technique. These physically and thermally integrated subsystems comprise the 250 kW External Fuel Processor. The 250 kW External Fuel Processor was tested at the Rolls-Royce facility in North Canton, Ohio to verify process performance and for comparison with design specifications. A step wise operation of the automatic controls through the startup, normal operation and shutdown sequences allowed the control system to be tuned and verified. A fully automated system was achieved that brings the fuel processor through its startup procedure, and then await commands from the fuel cell generator module for fuel supply and shutdown. The fuel processor performance met all design specifications. The 250 kW External Fuel Processor was shipped to an American Electric Power site where it will be tested with a Rolls-Royce solid oxide fuel cell generator module.

Daniel Birmingham; Crispin Debellis; Mark Perna; Anant Upadhyayula

2008-02-28T23:59:59.000Z

355

Software products for risk assessment  

Science Conference Proceedings (OSTI)

For assessing risks in all environments it is often necessary to use a systematic approach of modeling and simulation with the aim to simplify this process in the framework of designing new technological lines, machines, equipment and processes. Also ... Keywords: crisis management, risk assessment, software products

Jozef Ristvej; Tomas Lovecek

2011-11-01T23:59:59.000Z

356

Equipment Risk and Performance Assessment  

Science Conference Proceedings (OSTI)

This report introduces the basis for understanding, developing, and applying a new set of practical, condition-based risk models for substation equipment. Because of the great variety of risks encountered in the power delivery industry and the diversity in utility equipment and business practices, the focus at this stage of the project is at the conceptual level.

2010-12-23T23:59:59.000Z

357

New Measurements Using External Photon Conversion at a High Luminosity B Factory  

E-Print Network (OSTI)

We propose two novel methods for testing the standard model using external photon conversion at a high-luminosity e^+e^- B factory proposed recently. The first method is to measure the mixing-induced CP-violation parameter S_{pi^0pi^0} in B^0 --> pi^0 pi^0 decays. The precision of S_{pi^0pi^0} is estimated to be 0.23 from a Monte Carlo study for a data sample containing 50 x 10^9 BBbar pairs. We demonstrate that this measurement is crucial for reducing the discrete ambiguity of the Cabibbo-Kobayashi-Maskawa angle phi_2 determined from the isospin analysis with B --> pi pi decays. The second method is to measure photon polarization in B^0 --> K^{*0}(--> K^+ pi^-) gamma decays using the external photon conversion, and combine it with S_{K^{*}gamma} from B^0 --> K^{*0}(--> K^0_S pi^0) gamma decays. This offers a promising way of determining the hypothetical right-handed current amplitude and phase beyond the standard model.

H. Ishino; M. Hazumi; M. Nakao; T. Yoshikawa

2007-03-27T23:59:59.000Z

358

Probabilistic accident consequence uncertainty analysis -- Uncertainty assessment for deposited material and external doses. Volume 2: Appendices  

SciTech Connect

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the consequence from the accidental releases of radiological material from hypothesized accidents at nuclear installations. In 1991, the US Nuclear Regulatory Commission and the Commission of the European Communities began cosponsoring a joint uncertainty analysis of the two codes. The ultimate objective of this joint effort was to systematically develop credible and traceable uncertainty distributions for the respective code input variables. A formal expert judgment elicitation and evaluation process was identified as the best technology available for developing a library of uncertainty distributions for these consequence parameters. This report focuses on the results of the study to develop distribution for variables related to the MACCS and COSYMA deposited material and external dose models. This volume contains appendices that include (1) a summary of the MACCS and COSYMA consequence codes, (2) the elicitation questionnaires and case structures, (3) the rationales and results for the panel on deposited material and external doses, (4) short biographies of the experts, and (5) the aggregated results of their responses.

Goossens, L.H.J.; Kraan, B.C.P.; Cooke, R.M. [Delft Univ. of Technology (Netherlands); Boardman, J. [AEA Technology (United Kingdom); Jones, J.A. [National Radiological Protection Board (United Kingdom); Harper, F.T.; Young, M.L. [Sandia National Labs., Albuquerque, NM (United States); Hora, S.C. [Univ. of Hawaii, Hilo, HI (United States)

1997-12-01T23:59:59.000Z

359

Trace-gas sensing using the compliance voltage of an external cavity quantum cascade laser  

SciTech Connect

Quantum cascade lasers (QCLs) are increasingly being used to detect, identify, and measure levels of trace gases in the air. External cavity QCLs (ECQCLs) provide a broadly-tunable infrared source to measure absorption spectra of chemicals and provide high detection sensitivity and identification confidence. Applications include detecting chemical warfare agents and toxic industrial chemicals, monitoring building air quality, measuring greenhouse gases for atmospheric research, monitoring and controlling industrial processes, analyzing chemicals in exhaled breath for medical diagnostics, and many more. Compact, portable trace gas sensors enable in-field operation in a wide range of platforms, including handheld units for use by first responders, fixed installations for monitoring air quality, and lightweight sensors for deployment in unmanned aerial vehicles (UAVs). We present experimental demonstration of a new chemical sensing technique based on intracavity absorption in an external cavity quantum cascade laser (ECQCL). This new technique eliminates the need for an infrared photodetector and gas cell by detecting the intracavity absorption spectrum in the compliance voltage of the laser device itself. To demonstrate and characterize the technique, we measure infrared absorption spectra of chemicals including water vapor and Freon-134a. Sub-ppm detection limits in one second are achieved, with the potential for increased sensitivity after further optimization. The technique enables development of handheld, high-sensitivity, and high-accuracy trace gas sensors for in-field use.

Phillips, Mark C.; Taubman, Matthew S.

2013-06-04T23:59:59.000Z

360

Dose-rate conversion factors for external exposure to photons and electrons  

SciTech Connect

Dose-rate conversion factors for external exposure to photons and electrons have been calculated for approximately 500 radionuclides of potential importance in environmental radiological assessments. The dose-rate factors were obtained using the DOSFACTER computer code. The results given in this report incorporate calculation of electron dose-rate factors for radiosensitive tissues of the skin, improved estimates of organ dose-rate factors for photons, based on organ doses for monoenergetic sources at the body surface of an exposed individual, and the spectra of scattered photons in air from monoenergetic sources in an infinite, uniformly contaminated atmospheric cloud, calculation of dose-rate factors for other radionuclides in addition to those of interest in the nuclear fuel cycle, and incorporation of updated radioactive decay data for all radionuclides. Dose-rate factors are calculated for three exposure modes - immersion in contaminated air, immersion in contaminated water, and exposure at a height of 1 m above a contaminated ground surface. The report presents the equations used to calculate the external dose-rate factors for photons and electrons, documentation of the revised DOSFACTER computer code, and a complete tabulation of the calculated dose-rate factors. 30 refs., 12 figs.

Kocher, D.C.

1981-08-01T23:59:59.000Z

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


361

The peeling in the "very external region" of non linear perturbations of the Kerr spacetime  

E-Print Network (OSTI)

Let an initial data metric $\\overline{g}$ be, outside a ball $B_{R_0}$ centered in the origin, the induced metric on $\\Sigma_0$ of a Kerr spacetime (with a mass $M$ and angular momentum $J$ whose ratio, $J/M$, depends on the size of $R_0$) plus small corrections which decay at spacelike infinity faster than $r^{-3}$; let, in the same region, a symmetric tensor $\\overline{k}$ be the second fundamental form of the Kerr spacetime plus small corrections which decay at spacelike infinity faster than $r^{-4}$, let $\\overline{g}$ and $\\overline{k}$ satisfy the constraint equations. Then, using the previous results of \\cite{Ch-Kl:book} and \\cite{Kl-Ni:book}, the global existence of the external region of a global spacetime, outside the region of influence of $B_{R_0}$ follows. In this external region the various components of the Riemann tensor decay along the outgoing null directions in agreement with the "Peeling Theorem".

Francesco Nicolň

2009-01-21T23:59:59.000Z

362

Capital Requirements, Risk Measures and Comonotonicity  

E-Print Network (OSTI)

In this paper we examine and summarize properties of several well-known risk measures, with special attention given to the class of distortion risk measures. We investigate the relationship between these risk measures and theories of choice under risk. We also consider the problem of evaluating risk measures for sums of nonindependent random variables and propose approximations based on the concept of comonotonicity.

Jan Dhaene; Steven Vanduffel; Qihe Tang; Marc J. Goovaerts; Rob Kaas; David Vyncke; Robkaas Davidvyncke

2004-01-01T23:59:59.000Z

363

Financial risk measurement with imprecise probabilities  

Science Conference Proceedings (OSTI)

Although financial risk measurement is a largely investigated research area, its relationship with imprecise probabilities has been mostly overlooked. However, risk measures can be viewed as instances of upper (or lower) previsions, thus letting us apply ... Keywords: Coherent and convex risk measures, Dilation, Envelope theorems, Imprecise previsions, Natural extension, Risk measures, Shortfall, Value-at-Risk (VaR)

Paolo Vicig

2008-09-01T23:59:59.000Z

364

Profiling risk sensibility through association rules  

Science Conference Proceedings (OSTI)

In the last recent years several approaches to risk assessment and risk management have been adopted to reduce the potential for specific risks in working environments. A safety culture has also developed to let workers acquire knowledge and understanding ... Keywords: Association rules, Frequent patterns, Risk perception, Risk propensity

Beatrice Lazzerini; Francesco Pistolesi

2013-04-01T23:59:59.000Z

365

Airport risk assessment: a probabilistic approach  

Science Conference Proceedings (OSTI)

Risk reduction is one of the key objectives pursued by transport safety policies. Particularly, the formulation and implementation of transport safety policies needs the systematic assessment of the risks, the specification of residual risk targets and ... Keywords: risk assessment methodology, risk management, safety civil aviation

L. Guerra; T. Murino; E. Romano

2008-05-01T23:59:59.000Z

366

The Number of High-Risk Factors and the Risk of Prostate Cancer-Specific Mortality After Brachytherapy: Implications for Treatment Selection  

SciTech Connect

Purpose: To determine whether an increasing number of high-risk factors is associated with higher prostate cancer-specific mortality (PCSM) among men treated with brachytherapy (BT)-based treatment, and whether supplemental therapy has an impact on this risk. Methods and Materials: We analyzed the cases of 2234 men with localized prostate cancer treated between 1991 and 2007 with low-dose rate BT monotherapy (n = 457) or BT with supplemental external-beam radiotherapy (EBRT, n = 229), androgen suppression therapy (AST, n = 424), or both (n = 1124). All men had at least one high-risk factor (prostate-specific antigen >20 ng/mL, biopsy Gleason score 8-10, or clinical stage {>=}T2c). Competing-risks multivariable regressions were performed to determine whether the presence of at least two high-risk factors was associated with an increased risk of PCSM, with adjustment for age, comorbidity, and the type of supplemental treatment. Results: The median follow-up time was 4.3 years. The number of men with at least two high-risk factors was highest in the group treated with BT, EBRT, and AST (21%), followed by BT plus EBRT or AST (13%), and BT alone (8%) (p{sub trend} < 0.001). The adjusted hazard ratio (AHR) for PCSM for those with at least two high-risk factors (as compared with one) was 4.8 (95% confidence interval [CI], 2.8-8.0; p < 0.001). The use of both supplemental EBRT and AST was associated with a decreased risk of PCSM (AHR 0.5; 95% CI, 0.2-0.9; p = 0.03) compared with BT alone. When the high-risk factors were analyzed separately, Gleason score 8-10 was most significantly associated with increased PCSM (AHR 6.2; 95% CI, 3.5-11.2; p < 0.001). Conclusions: Men with high-risk prostate adenocarcinoma treated with BT have decreased PCSM if they receive trimodailty therapy that includes EBRT and AST. This benefit is likely most important in men with multiple determinants of high risk.

Wattson, Daniel A., E-mail: dwattson@partners.org [Harvard Radiation Oncology Program, Boston, MA (United States); Chen Minghui [Department of Statistics, University of Connecticut, Storrs, CT (United States); Moul, Judd W. [Division of Urology, Department of Surgery and Duke Prostate Center, Duke University Medical Center, Durham, NC (United States); Moran, Brian J. [Prostate Cancer Foundation of Chicago, Westmont, IL (United States); Dosoretz, Daniel E. [21st Century Oncology, Fort Myers, FL (United States); Robertson, Cary N.; Polascik, Thomas J. [Division of Urology, Department of Surgery and Duke Prostate Center, Duke University Medical Center, Durham, NC (United States); Braccioforte, Michelle H. [Prostate Cancer Foundation of Chicago, Westmont, IL (United States); Salenius, Sharon A. [21st Century Oncology, Fort Myers, FL (United States); D'Amico, Anthony V. [Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, MA (United States)

2012-04-01T23:59:59.000Z

367

Security risk assessment: toward a comprehensive practical risk management  

Science Conference Proceedings (OSTI)

This paper introduces a unique approach to a more integrated security risk assessment SRA. This is formalised based on the proven mathematical methods described in various articles in the literature and combined with the work developed by the author. ...

Danilo Valeros Bernardo

2012-01-01T23:59:59.000Z

368

Risk-Based Production Optimization  

Science Conference Proceedings (OSTI)

This report documents the pilot application of a risk-informed approach to production optimization at fossil power plants. In this project, EPRI worked with a U.S. utility to develop risk profiles for plant components at two of the utilitys coal-fired generating units. The information was then used as a basis for identifying timing strategies for performing outage-based maintenance. The primary objective was to apply a risk-informed approach to identifying an optimal sequence of outage intervals and scop...

2011-04-29T23:59:59.000Z

369

Buying electricity: Bounding the risks  

Science Conference Proceedings (OSTI)

Dr. Berry`s article draws upon his review of dozens of electrical contracts while he was with the staff of the Arizona Corporation Commission. He presents risk management strategies for commercial and industrial consumers of power as electric markets become more competitive. Seven risk management tools are discussed: get more information about market prices; seek or make credible commitments; try to retain flexibility; seek to share, transfer, or spread risks; use incentives to help improve or offset poor performance; manage the use of electricity; and build trust with the supplier.

Berry, D. [Resource Management International, Inc., Sacramento, CA (United States)

1997-11-01T23:59:59.000Z

370

Kilovoltage Rotational External Beam Radiotherapy on a Breast Computed Tomography Platform: A Feasibility Study  

SciTech Connect

Purpose: To demonstrate the feasibility of a dedicated breast computed tomography (bCT) platform to deliver rotational kilovoltage (kV) external beam radiotherapy (RT) for partial breast irradiation, whole breast irradiation, and dose painting. Methods and Materials: Rotational kV-external beam RT using the geometry of a prototype bCT platform was evaluated using a Monte Carlo simulator. A point source emitting 178 keV photons (approximating a 320-kVp spectrum with 4-mm copper filtration) was rotated around a 14-cm voxelized polyethylene disk (0.1 cm tall) or cylinder (9 cm tall) to simulate primary and primary plus scattered photon interactions, respectively. Simulations were also performed using voxelized bCT patient images. Beam collimation was varied in the x-y plane (1-14 cm) and in the z-direction (0.1-10 cm). Dose painting for multiple foci, line, and ring distributions was demonstrated using multiple rotations with varying beam collimation. Simulations using the scanner's native hardware (120 kVp filtered by 0.2-mm copper) were validated experimentally. Results: As the x-y collimator was narrowed, the two-dimensional dose profiles shifted from a cupped profile with a high edge dose to an increasingly peaked central dose distribution with a sharp dose falloff. Using a 1-cm beam, the cylinder edge dose was <7% of the dose deposition at the cylinder center. Simulations using 120-kVp X-rays showed distributions similar to the experimental measurements. A homogeneous dose distribution (<2.5% dose fluctuation) with a 20% decrease in dose deposition at the cylinder edge (i.e., skin sparing) was demonstrated by weighted summation of four dose profiles using different collimation widths. Simulations using patient bCT images demonstrated the potential for treatment planning and image-guided RT. Conclusions: Rotational kV-external beam RT for partial breast irradiation, dose painting, and whole breast irradiation with skin sparing is feasible on a bCT platform with the potential for high-resolution image-guided RT.

Prionas, Nicolas D.; McKenney, Sarah E. [Department of Radiology, University of California, Davis, Medical Center, Sacramento, California (United States)] [Department of Radiology, University of California, Davis, Medical Center, Sacramento, California (United States); Stern, Robin L. [Department of Radiation Oncology, University of California, Davis, Medical Center, Sacramento, California (United States)] [Department of Radiation Oncology, University of California, Davis, Medical Center, Sacramento, California (United States); Boone, John M., E-mail: jmboone@ucdavis.edu [Department of Radiology, University of California, Davis, Medical Center, Sacramento, California (United States)

2012-10-01T23:59:59.000Z

371

Capacity Factor Risk At Nuclear Power Plants  

E-Print Network (OSTI)

We develop a model of the dynamic structure of capacity factor risk. It incorporates the risk that the capacity factor may vary widely from year-to-year, and also the risk that the reactor may be permanently shutdown prior ...

Du, Yangbo

372

Risk Aversion in Inventory Management  

E-Print Network (OSTI)

Traditional inventory models focus on risk-neutral decision makers, i.e., characterizing replenishment strategies that maximize expected total profit, or equivalently, minimize expected total cost over a planning horizon. ...

Chen, Xin

373

Health risks of energy technologies  

Science Conference Proceedings (OSTI)

This volume examines occupational, public health, and environmental risks of the coal fuel cycle, the nuclear fuel cycle, and unconventional energy technologies. The 6 chapters explore in detail the relationship between energy economics and risk analysis, assess the problems of applying traditional cost-benefit analysis to long-term environmental problems (such as global carbon dioxide levels), and consider questions about the public's perception and acceptance of risk. Also included is an examination of the global risks associated with current and proposed levels of energy production and comsumption from all major sources. A separate abstract was prepared for each of the 6 chapters; all are included in Energy Abstracts for Policy Analysis (EAPA) and four in Energy Research Abstracts (ERA).

Travis, C.C.; Etnier, E.L. (eds.)

1983-01-01T23:59:59.000Z

374

Risk View Software Functional Specification  

Science Conference Proceedings (OSTI)

This report defines the functional requirements for a new Risk View software product to be developed as part of the Electric Power Research Institute's (EPRI's) Operations and Maintenance Excellence (OMX) initiative. plant information sources.

2010-09-30T23:59:59.000Z

375

Thermodynamic properties of strongly coupled plasma in presence of external magnetic field  

E-Print Network (OSTI)

Thermodynamic properties of a Yukawa system consisting of dust particles in plasma are studied in presence of an external magnetic field. It is assumed that dust particles interact with each other by modified potential in presence of magnetic field. Accordingly, a modified expression for internal energy has been obtained. A molecular dynamics code is developed to calculate this internal energy for the entire system. Based on the values of internal energy given by the code Helmholtz free energy and pressure are calculated for the system. Our study shows novel kind of behaviour for internal energy in presence of magnetic field. Thermodynamic properties are affected significantly by magnetic field. The study helps to express internal energy as a function of Coulomb coupling parameter and magnetic field.

Begum, Mahmuda; Das, Nilakshi

2013-01-01T23:59:59.000Z

376

Photon-radion conversion cross-sections in external electromagnetic field  

E-Print Network (OSTI)

An attempt is made to present some experimental predictions of the Randall-Sundrum model, where compactification radius of the extra dimension is stabilized by the radion, which is a scalar field lighter than the graviton Kaluza-Klein states. We calculate the conversion cross-sections of the photons into the radions in the external electromagnetic fields, namely, in the static fields and in a periodic field of the wave guide. Numerical evaluations of the total cross-sections are also given. Our result shows that the conversion cross-section in the static electric field is quite small. But, in the static magnetic and periodic fields, the radion productions are much enhanced.

P. V. Dong; H. N. Long; D. V. Soa; N. H. Thao

2011-10-11T23:59:59.000Z

377

Environmental Assessment for the Warren Station externally fired combined cycle demonstration project  

SciTech Connect

The proposed Penelec project is one of 5 projects for potential funding under the fifth solicitation under the Clean Coal Technology program. In Penelec, two existing boilers would be replaced at Warren Station, PA; the new unit would produce 73 MW(e) in a combined cycle mode (using both gas-fired and steam turbines). The project would fill the need for a full utility-size demonstration of externally fire combined cycle (EFCC) technology as the next step toward commercialization. This environmental assessment was prepared for compliance with NEPA; its purpose is to provide sufficient basis for determining whether to prepare an environmental impact statement or to issue a finding of no significant impact. It is divided into the sections: purpose and need for proposed action; alternatives; brief description of affected environment; environmental consequences, including discussion of commercial operation beyond the demonstration period.

NONE

1995-04-01T23:59:59.000Z

378

One Dimensional Magnetized TG Gas Properties in an External Magnetic Field  

E-Print Network (OSTI)

With Girardeau's Fermi-Bose mapping, we have constructed the eigenstates of a TG gas in an external magnetic field. When the number of bosons $N$ is commensurate with the number of potential cycles $M$, the probability of this TG gas in the ground state is bigger than the TG gas raised by Girardeau in 1960. Through the comparison of properties between this TG gas and Fermi gas, we find that the following issues are always of the same: their average value of particle's coordinate and potential energy, system's total momentum, single-particle density and the pair distribution function. But the reduced single-particle matrices and their momentum distributions between them are different.

Zhao Liang Wang; An Min Wang

2009-12-31T23:59:59.000Z

379

Exciton fine-structure splitting of telecom wavelength single quantum dots: statistics and external strain tuning  

E-Print Network (OSTI)

In a charge tunable device, we investigate the fine structure splitting of neutral excitons in single long-wavelength (1.1\\mu m response of the splitting to the external strain, including positive and negative tuning slopes, different tuning ranges, and linear and parabolic dependencies, indicating that these physical parameters depend strongly on the unique microscopic structure of the individual quantum dot. To better understand the experimental results, we apply a phenomenological model describing the exciton polarization and fine-structure splitting under uniaxial strain. The model predicts that, with an increased experimental strain tuning range, the fine-structure can be effectively canceled for select telecom wavelength dots using uniaxial strain. These results are promising for the generation of on-demand entangled photon pairs at telecom wavelengths.

Luca Sapienza; Ralph N. E. Malein; Christopher E. Kuklewicz; Peter E. Kremer; Kartik Srinivasan; Andrew Griffiths; Edmund Clarke; Ming Gong; Richard J. Warburton; Brian D. Gerardot

2013-03-05T23:59:59.000Z

380

Method and apparatus for detecting external cracks from within a metal tube  

DOE Patents (OSTI)

A method and tool using a continuous electromagnetic wave from a transverse magnetic-dipole source with a coaxial electric-dipole receiver is described for the detection of external sidewall cracks and other anomalies in boiler tubes and other enclosures. The invention utilizes the concept of radar backscatter rather than eddy-currents or ultrasound, which are sometimes used in prior art crack-detection methods. A numerical study of the distribution of the fields shows that the direct transmission from the source to the receiver is reduced from that in free space. Further, if the diameter of the receiver dipole is made sufficiently small, it should be possible to detect cracks with a scattering loss of up to -40 dB in thin-walled boiler tubes.

Caffey, Thurlow W. H. (Albuquerque, NM)

2001-08-07T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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

Using Waste Heat for External Processes (English/Chinese) (Fact Sheet)  

SciTech Connect

Chinese translation of the Using Waste Heat for External Processes fact sheet. Provides suggestions on how to use waste heat in industrial applications. The temperature of exhaust gases from fuel-fired industrial processes depends mainly on the process temperature and the waste heat recovery method. Figure 1 shows the heat lost in exhaust gases at various exhaust gas temperatures and percentages of excess air. Energy from gases exhausted from higher temperature processes (primary processes) can be recovered and used for lower temperature processes (secondary processes). One example is to generate steam using waste heat boilers for the fluid heaters used in petroleum crude processing. In addition, many companies install heat exchangers on the exhaust stacks of furnaces and ovens to produce hot water or to generate hot air for space heating.

Not Available

2011-10-01T23:59:59.000Z

382

Frequency-doubled vertical-external-cavity surface-emitting laser  

DOE Patents (OSTI)

A frequency-doubled semiconductor vertical-external-cavity surface-emitting laser (VECSEL) is disclosed for generating light at a wavelength in the range of 300-550 nanometers. The VECSEL includes a semiconductor multi-quantum-well active region that is electrically or optically pumped to generate lasing at a fundamental wavelength in the range of 600-1100 nanometers. An intracavity nonlinear frequency-doubling crystal then converts the fundamental lasing into a second-harmonic output beam. With optical pumping with 330 milliWatts from a semiconductor diode pump laser, about 5 milliWatts or more of blue light can be generated at 490 nm. The device has applications for high-density optical data storage and retrieval, laser printing, optical image projection, chemical-sensing, materials processing and optical metrology.

Raymond, Thomas D. (Edgewood, NM); Alford, William J. (Albuquerque, NM); Crawford, Mary H. (Albuquerque, NM); Allerman, Andrew A. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

383

Photon-radion conversion cross-sections in external electromagnetic field  

E-Print Network (OSTI)

An attempt is made to present some experimental predictions of the Randall-Sundrum model, where compactification radius of the extra dimension is stabilized by the radion, which is a scalar field lighter than the graviton Kaluza-Klein states. We calculate the conversion cross-sections of the photons into the radions in the external electromagnetic fields, namely, in the static fields and in a periodic field of the wave guide. Numerical evaluations of the total cross-sections are also given. Our result shows that the conversion cross-section in the static electric field is quite small. But, in the static magnetic and periodic fields, the radion productions are much enhanced.

Dong, P V; Soa, D V; Thao, N H; 10.1007/JHEP10(2011)018

2011-01-01T23:59:59.000Z

384

Risk-Informed Asset Management  

Science Conference Proceedings (OSTI)

This report contains business requirements for Risk-Informed Asset Management (RIAM) software. The requirements pertain to both a full-blown version of RIAM (including uncertainty analysis of the economic and safety risk of a proposed equipment improvement project) and for RIAM Level 1 project screening software. The RIAM Level 1 analysis is a bounding process intended to estimate the most optimistic effect that the proposed investment would have on plant safety, cost, and revenue. The optimistic assumpt...

2006-02-24T23:59:59.000Z

385

Demand Response and Risk Management  

Science Conference Proceedings (OSTI)

For several decades, power companies have deployed various types of demand response (DR), such as interruptible contracts, and there is substantial ongoing research and development on sophisticated mechanisms for triggering DR. In this white paper, EPRI discusses the increasing use of electricity DR in the power industry and how this will affect the practice of energy risk management. This paper outlines 1) characteristics of a common approach to energy risk management, 2) the variety of types of DR impl...

2008-12-18T23:59:59.000Z

386

Influence of external magnetic and laser radiation fields on Feshbach resonances in collision of atoms  

E-Print Network (OSTI)

We study collision of two atoms with formation of Feshbach resonance at combined interaction with the external magnetic field and laser radiation. In cases of one- and two-photon resonances of laser radiation with two discrete vibrational molecular levels, we show that Feshbach resonances appear at interaction of external magnetic field with dressed states formed via Autler-Townes effect. In addition, in case of one-photon resonance the lower vibrational molecular state is coupled by laser radiation with the continuum of the elastic channel and forms laser-induced Feshbach resonance via both Autler-Townes effect and LICS mechanism. We study the combined process of formation of Feshbach resonances; this enables the control of Feshbach resonance by varying the magnetic field and intensity and frequency of laser radiation. We obtain the cross-sections of elastic and inelastic scattering and show that quenching of resonance occurs at the energy equal to that of the systems ground state. Dependence of the cross-sections on the magnetic field and laser intensity is examined in detail. In all considered cases, the scattering length is obtained depending on the magnetic and laser fields are studied. In the absence of magnetic interaction if the hyperfine substates of the quasibound state in the closed channel and those of individual colliding atoms in the open channel are the same, Feshbach resonances may arise via weak interaction between nuclear and electronic motions, which leads to transitions between electronic states. The obtained results can be employed in new studies of collisions of cold atoms, e.g., of alkali metal atoms and for interpretation of new experiments in BECs.

E. A. Gazazyan; A. D. Gazazyan; V. O. Chaltykyan

2012-09-21T23:59:59.000Z

387

Qualitative methods for assessing risk  

SciTech Connect

The Department of Energy`s (DOE) non-nuclear facilities generally require only a qualitative accident analysis to assess facility risks in accordance with DOE Order 5481.1B, Safety Analysis and Review System. Achieving a meaningful qualitative assessment of risk necessarily requires the use of suitable non-numerical assessment criteria. Typically, the methods and criteria for assigning facility-specific accident scenarios to the qualitative severity and likelihood classification system in the DOE order requires significant judgment in many applications. Systematic methods for more consistently assigning the total accident scenario frequency and associated consequences are required to substantiate and enhance future risk ranking between various activities at Sandia National Laboratories (SNL). SNL`s Risk Management and National Environmental Policy Act (NEPA) Department has developed an improved methodology for performing qualitative risk assessments in accordance wi the DOE order requirements. Products of this effort are an improved set of qualitative description that permit (1) definition of the severity for both technical and programmatic consequences that may result from a variety of accident scenarios, and (2) qualitative representation of the likelihood of occurrence. These sets of descriptions are intended to facilitate proper application of DOE criteria for assessing facility risks.

Mahn, J.A. [Sandia National Labs., Albuquerque, NM (United States); Hannaman, G.W. [Science Applications International Corp., San Diego, CA (United States); Kryska, P. [Science Applications International Corp., Albuquerque, NM (United States)

1995-04-01T23:59:59.000Z

388

A Preliminary Approach to Human Reliability Analysis for External Events with a Focus on Seismic  

Science Conference Proceedings (OSTI)

Substantial research has been performed to-date to develop and improve methods to perform Human Reliability Analysis (HRA) in support of Probabilistic Risk Assessment (PRA). Existing HRA methods, however, were developed primarily for internal events PRA and PRA applications. These methods often contain underlying assumptions that may or may not be applicable to the challenging and new environment created by an ...

2012-12-12T23:59:59.000Z

389

Uncertainties in risk assessment at USDOE facilities  

Science Conference Proceedings (OSTI)

The United States Department of Energy (USDOE) has embarked on an ambitious program to remediate environmental contamination at its facilities. Decisions concerning cleanup goals, choices among cleanup technologies, and funding prioritization should be largely risk-based. Risk assessments will be used more extensively by the USDOE in the future. USDOE needs to develop and refine risk assessment methods and fund research to reduce major sources of uncertainty in risk assessments at USDOE facilities. The terms{open_quote} risk assessment{close_quote} and{open_quote} risk management{close_quote} are frequently confused. The National Research Council (1983) and the United States Environmental Protection Agency (USEPA, 1991a) described risk assessment as a scientific process that contributes to risk management. Risk assessment is the process of collecting, analyzing and integrating data and information to identify hazards, assess exposures and dose responses, and characterize risks. Risk characterization must include a clear presentation of {open_quotes}... the most significant data and uncertainties...{close_quotes} in an assessment. Significant data and uncertainties are {open_quotes}...those that define and explain the main risk conclusions{close_quotes}. Risk management integrates risk assessment information with other considerations, such as risk perceptions, socioeconomic and political factors, and statutes, to make and justify decisions. Risk assessments, as scientific processes, should be made independently of the other aspects of risk management (USEPA, 1991a), but current methods for assessing health risks are based on conservative regulatory principles, causing unnecessary public concern and misallocation of funds for remediation.

Hamilton, L.D.; Holtzman, S.; Meinhold, A.F.; Morris, S.C.; Rowe, M.D.

1994-01-01T23:59:59.000Z

390

Major Risk Factors Integrated Facility Disposition Project -...  

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

- Oak Ridge Summary - Major Risk Factors Integrated Facility Disposition Project (IFDP) Oak Ridge, TN More Documents & Publications Major Risk Factors to the Integrated...

391

Problem Formulations for Ecological Risk Assessments Conducted...  

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

- deformities, fin erosion, lesions, and tumors ERA - ecological risk assessment HHRA - human health risk assessments ow K - octanol-water partition coefficients oc K - organic...

392

Environmental Risks of Depleted UF6 Disposal  

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

Depleted UF6 Environmental Risks line line Storage Conversion Manufacturing Disposal Environmental Risks of Depleted UF6 Disposal A discussion of the environmental impacts...

393

Risk Management Tool Attributes: | Department of Energy  

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

Management Tool Attributes: More Documents & Publications Software Development Risk Assessment Risk Management RM Categorizing Threat Building and Using a Generic Threat Matrix...

394

Risk communication: Uncertainties and the numbers game  

Science Conference Proceedings (OSTI)

The science of risk assessment seeks to characterize the potential risk in situations that may pose hazards to human health or the environment. However, the conclusions reached by the scientists and engineers are not an end in themselves - they are passed on to the involved companies, government agencies, legislators, and the public. All interested parties must then decide what to do with the information. Risk communication is a type of technical communication that involves some unique challenges. This paper first defines the relationships between risk assessment, risk management, and risk communication and then explores two issues in risk communication: addressing uncertainty and putting risk number into perspective.

Ortigara, M. [ed.

1995-08-30T23:59:59.000Z

395

Interactive graphics for communicating health risks.  

E-Print Network (OSTI)

?? Materials for consumer informatics, patient decision support, and health promotion frequently incorporate quantitative risks such as percentages, rates, or proportions. These risks are frequently… (more)

Ancker, Jessica S.

2009-01-01T23:59:59.000Z

396

Producer perception of fed cattle price risk.  

E-Print Network (OSTI)

??Risk is an inevitable part of agricultural production and all producers face various forms of risk. Output price has been shown to be the major… (more)

Riley, John Michael

2008-01-01T23:59:59.000Z

397

Market risk analysis of coal liquefaction.  

E-Print Network (OSTI)

??This study addresses the risks associated with coal liquefaction using a market risk simulation approach. The study can be divided into four phases: (i) identify… (more)

Mei, Huan.

2007-01-01T23:59:59.000Z

398

Operational aspects of an externally driven neutron multiplier assembly concept using a Z-pinch 14-MeV Neutron Source (ZEDNA).  

Science Conference Proceedings (OSTI)

This report documents the key safety and operational aspects of a Z-pinch Externally Driven Nuclear Assembly (ZEDNA) reactor concept which is envisioned to be built and operated at the Z-machine facility in Technical Area IV. Operating parameters and reactor neutronic conditions are established that would meet the design requirements of the system. Accident and off-normal conditions are analyzed using a point-kinetics, one-dimensional thermo-mechanical code developed specifically for ZEDNA applications. Downwind dose calculations are presented to determine the potential dose to the collocated worker and public in the event of a hypothetical catastrophic accident. Current and magnetic impulse modeling and the debris shield design are examined for the interface between the Z machine and the ZEDNA. This work was performed as part of the Advanced Fusion Grand Challenge Laboratory Directed Research and Development Program. The conclusion of this work is that the ZEDNA concept is feasible and could be operated at the Z-machine facility without undue risk to collocated workers and the public.

Smith, David Lewis; Heames, Terence John (Alion Science and Technology, Albuquerque, NM); Parma, Edward J., Jr.; Peters, Curtis D.; Suo-Anttila, Ahti Jorma (Alion Science and Technology, Albuquerque, NM)

2007-09-01T23:59:59.000Z

399

Comparison of risk-dominant scenario assumptions for several TRU waste facilities in the DOE complex  

Science Conference Proceedings (OSTI)

In order to gain a risk management perspective, the DOE Rocky Flats Field Office (RFFO) initiated a survey of other DOE sites regarding risks from potential accidents associated with transuranic (TRU) storage and/or processing facilities. Recently-approved authorization basis documents at the Rocky Flats Environmental Technology Site (RFETS) have been based on the DOE Standard 3011 risk assessment methodology with three qualitative estimates of frequency of occurrence and quantitative estimates of radiological consequences to the collocated worker and the public binned into three severity levels. Risk Class 1 and 2 events after application of controls to prevent or mitigate the accident are designated as risk-dominant scenarios. Accident Evaluation Guidelines for selection of Technical Safety Requirements (TSRs) are based on the frequency and consequence bin assignments to identify controls that can be credited to reduce risk to Risk Class 3 or 4, or that are credited for Risk Class 1 and 2 scenarios that cannot be further reduced. This methodology resulted in several risk-dominant scenarios for either the collocated worker or the public that warranted consideration on whether additional controls should be implemented. RFFO requested the survey because of these high estimates of risks that are primarily due to design characteristics of RFETS TRU waste facilities (i.e., Butler-type buildings without a ventilation and filtration system, and a relatively short distance to the Site boundary). Accident analysis methodologies and key assumptions are being compared for the DOE sites responding to the survey. This includes type of accidents that are risk dominant (e.g., drum explosion, material handling breach, fires, natural phenomena, external events, etc.), source term evaluation (e.g., radionuclide material-at-risk, chemical and physical form, damage ratio, airborne release fraction, respirable fraction, leakpath factors), dispersion analysis (e.g., meteorological assumptions, distance to receptors, plume meander, deposition, and other factors affecting the calculated {chi}/Q), dose assessments (specific activities, inhalation dose conversion factors, breathing rates), designated frequency of occurrence, and risk assignment per the DOE Standard 3011 methodology. Information from the sites is being recorded on a spreadsheet to facilitate comparisons. The first response from Westinghouse Safety Management Solutions for the Savannah River Site (SRS) also provided a detailed analysis of the major differences in methods and assumptions between RFETS and SRS, which forms much of the basis for this paper. Other sites responding to the survey include the Idaho National Engineering and Environmental Laboratory (INEEL), Hanford, and the Los Alamos National Laboratory (LANL).

Foppe, T.L. [Foppe and Associates, Inc., Golden, CO (United States); Marx, D.R. [Westinghouse Safety Management Solutions, Inc., Aiken, SC (United States)

1999-06-01T23:59:59.000Z

400

SC Introduction to Risk Management | Department of Energy  

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

are here Home SC Introduction to Risk Management SC Introduction to Risk Management SC Introduction to Risk Management More Documents & Publications LPP Risk Management Plan...

Note: This page contains sample records for the topic "risk external rs" 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

Risk Management Process Overview | Department of Energy  

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

» Risk Management Process Overview » Risk Management Process Overview Risk Management Process Overview figure depicting three tier risk management process The cybersecurity risk management process explained in the Electricity Sector Cybersecurity Risk Management Process (RMP) Guideline has two primary components: the risk management model and the the risk management cycle. The risk management model reflects the organization as a three-tiered structure and provides a comprehensive view for the electricity sector organization and how risk management activities are undertaken across the organization. This structure is simple enough that it can be applied to any electricity sector organization regardless of size or operations. The three tiers of the risk management model are: Tier 1: Organization

402

European Committee on Radiation Risk  

E-Print Network (OSTI)

Radioactivity form the Fukushima Catastrophe is now reaching centres of population like Tokyo and will appear in the USA. Authorities are downplaying the risk on the basis of absorbed dose levels using the dose coefficients of the International Commission on Radiological Protection the ICRP. These dose coefficients and the ICRP radiation risk model is unsafe for this purpose. This is clear from hundreds of research studies of the Chernobyl accident outcomes. It has also been conceded by the editor of the ICRP risk model, Dr Jack Valentin, in a discussion with Chris Busby in Stockholm, Sweden in April 2009. Valentin specifically stated in a videoed interview (available on www.llrc.org and vimeo.com) that the ICRP model could not be used to advise politicians of the health consequences of a nuclear release like the one from Fukushima. Valentin agreed that for certain internal exposures the risk model was insecure by 2 orders of magnitude. The CERRIE committee stated that the range of insecurity was between 10 and members of the committee put the error at nearer to 1000, a factor which would be necessary to explain the nuclear site child leukemia clusters. The ECRR risk model was developed for situations like Fukushima

Chris Busby

2011-01-01T23:59:59.000Z

403

Can All Centers Plan Intensity-Modulated Radiotherapy (IMRT) Effectively? An External Audit of Dosimetric Comparisons Between Three-Dimensional Conformal Radiotherapy and IMRT for Adjuvant Chemoradiation for Gastric Cancer  

SciTech Connect

Purpose: To compare dosimetric endpoints between three-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated radiotherapy (IMRT) at our center with limited IMRT experience, and to perform an external audit of the IMRT plans. Methods and Materials: Ten patients, who received adjuvant chemoradiation for gastric cancer, formed the study cohort. For standardization, the planning target volume (PTV) and organs at risk were recontoured with the assistance of a study protocol radiologic atlas. The cohort was replanned with CMS Xio to generate coplanar 3D-CRT and IMRT plans. All 10 datasets, including volumes but without the plans (i.e., blinded), were transmitted to an experienced center where IMRT plans were designed using Nomos Corvus (IMRT-C) and ADAC Pinnacle (IMRT-P). All IMRT plans were normalized to D95% receiving 45 Gy. Results: Intensity-modulated radiotherapy yielded higher PTV V45 (volume that receives {>=}45 Gy) (p < 0.001) than 3D-CRT. No difference in V20 was seen in the right (p = 0.9) and left (p 0.3) kidneys, but the liver mean dose (p < 0.001) was superior with IMRT. For the external audit, IMRT-C (p = 0.002) and IMRT-P (p < 0.001) achieved significantly lower left kidney V20 than IMRT, and IMRT-P (p < 0.001) achieved lower right kidney V20 than IMRT. The IMRT-C (p = 0.003) but not IMRT-P (p = 0.6) had lower liver mean doses than IMRT. Conclusions: At our institution with early IMRT experience, IMRT improved PTV dose coverage and liver doses but not kidney doses. An external audit of IMRT plans showed that an experienced center can yield superior IMRT plans.

Chung, Hans T. [Department of Radiation Oncology, Cancer Institute, National University Hospital (Singapore)], E-mail: hanstchung@gmail.com; Lee, Brian [Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA (United States); Park, Eileen; Lu, Jiade J. [Department of Radiation Oncology, Cancer Institute, National University Hospital (Singapore); Xia Ping [Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA (United States)

2008-07-15T23:59:59.000Z

404

External Peer Review Team Report Underground Testing Area Subproject for Frenchman Flat, Revision 1  

Science Conference Proceedings (OSTI)

An external peer review was conducted to review the groundwater models used in the corrective action investigation stage of the Underground Test Area (UGTA) subproject to forecast zones of potential contamination in 1,000 years for the Frenchman Flat area. The goal of the external peer review was to provide technical evaluation of the studies and to assist in assessing the readiness of the UGTA subproject to progress to monitoring activities for further model evaluation. The external peer review team consisted of six independent technical experts with expertise in geology, hydrogeology,'''groundwater modeling, and radiochemistry. The peer review team was tasked with addressing the following questions: 1. Are the modeling approaches, assumptions, and model results for Frenchman Flat consistent with the use of modeling studies as a decision tool for resolution of environmental and regulatory requirements? 2. Do the modeling results adequately account for uncertainty in models of flow and transport in the Frenchman Flat hydrological setting? a. Are the models of sufficient scale/resolution to adequately predict contaminant transport in the Frenchman Flat setting? b. Have all key processes been included in the model? c. Are the methods used to forecast contaminant boundaries from the transport modeling studies reasonable and appropriate? d. Are the assessments of uncertainty technically sound and consistent with state-of-the-art approaches currently used in the hydrological sciences? 3. Are the datasets and modeling results adequate for a transition to Corrective Action Unit monitoring studies—the next stage in the UGTA strategy for Frenchman Flat? The peer review team is of the opinion that, with some limitations, the modeling approaches, assumptions, and model results are consistent with the use of modeling studies for resolution of environmental and regulatory requirements. The peer review team further finds that the modeling studies have accounted for uncertainty in models of flow and transport in the Frenchman Flat except for a few deficiencies described in the report. Finally, the peer review team concludes that the UGTA subproject has explored a wide range of variations in assumptions, methods, and data, and should proceed to the next stage with an emphasis on monitoring studies. The corrective action strategy, as described in the Federal Facility Agreement and Consent Order, states that the groundwater flow and transport models for each corrective action unit will consider, at a minimum, the following: • Alternative hydrostratigraphic framework models of the modeling domain. • Uncertainty in the radiological and hydrological source terms. • Alternative models of recharge. • Alternative boundary conditions and groundwater flows. • Multiple permissive sets of calibrated flow models. • Probabilistic simulations of transport using plausible sets of alternative framework and recharge models, and boundary and groundwater flows from calibrated flow models. • Ensembles of forecasts of contaminant boundaries. • Sensitivity and uncertainty analyses of model outputs. The peer review team finds that these minimum requirements have been met. While the groundwater modeling and uncertainty analyses have been quite detailed, the peer review team has identified several modeling-related issues that should be addressed in the next phase of the corrective action activities: • Evaluating and using water-level gradients from the pilot wells at the Area 5 Radioactive Waste Management Site in model calibration. • Re-evaluating the use of geochemical age-dating data to constrain model calibrations. • Developing water budgets for the alluvial and upper volcanic aquifer systems in Frenchman Flat. • Considering modeling approaches in which calculated groundwater flow directions near the water table are not predetermined by model boundary conditions and areas of recharge, all of which are very uncertain. • Evaluating local-scale variations in hydraulic conductivity on the calculated contaminant boundaries. • Evaluat

Sam Marutzky

2010-09-01T23:59:59.000Z

405

The use of PRA (Probabilistic Risk Assessment) in the management of safety issues at the High Flux Isotope Reactor  

Science Conference Proceedings (OSTI)

The High Flux Isotope reactor (HFIR) is a high performance isotope production and research reactor which has been in operation at Oak Ridge National Laboratory (ORNL) since 1965. In late 1986 the reactor was shut down as a result of discovery of unexpected neutron embrittlement of the reactor vessel. In January of 1988, a level 1 Probabilistic Risk Assessment (PRA) (excluding external events) was published as part of the response to the many reviews that followed the shutdown and for use by ORNL to prioritize action items intended to upgrade the safety of the reactor. A conservative estimate of the core damage frequency initiated by internal events for HFIR was 3.11 {times} 10{sup {minus}4}. In June 1989 a draft external events initiated PRA was published. The dominant contributions from external events came from seismic, wind, and fires. The overall external event contribution to core damage frequency is about 138% of the internal event initiated contribution and is dominated by wind initiators. The PRA has provided a basis for the management of a wide range of safety and operation issues at the HFIR. 3 refs., 4 figs., 2 tabs.

Flanagan, G.F.

1990-01-01T23:59:59.000Z

406

Seismic Probabilistic Risk Assessment Implementation Guide  

Science Conference Proceedings (OSTI)

BackgroundThis report provides updates to the guidelines and approaches for seismic probabilistic risk assessments (SPRAs) that were published in the initial Electric Power Research Institute (EPRI) report Seismic Probabilistic Risk Assessment Implementation Guide (1002989) in 2003. It provides practical guidelines for SPRA development to support a variety of uses, including risk-informed applications.It is intended that a probabilistic risk ...

2013-12-18T23:59:59.000Z

407

New Approaches to Managing Transmission Project Risk  

Science Conference Proceedings (OSTI)

This report discusses the growing risks associated with transmission development and the importance of managing or hedging these risks. It presents case studies to illustrate the risks and categorizes approaches to managing them. It describes two EPRI tools that may be useful in managing transmission development risks, suggests how these tools might be further developed, and identifies other useful areas of research.

2006-11-15T23:59:59.000Z

408

Risk Analysis & Security Rule Compliance Activities  

Science Conference Proceedings (OSTI)

... Risk Analysis & Security Rule Compliance Activities Marissa Gordon- Nguyen, JD, MPH Health Information Privacy Specialist ...

2010-05-13T23:59:59.000Z

409

Quantitative Cyber Risk Reduction Estimation Methodology for a Small Scada Control System  

SciTech Connect

We propose a new methodology for obtaining a quick quantitative measurement of the risk reduction achieved when a control system is modified with the intent to improve cyber security defense against external attackers. The proposed methodology employs a directed graph called a compromise graph, where the nodes represent stages of a potential attack and the edges represent the expected time-to-compromise for differing attacker skill levels. Time-to-compromise is modeled as a function of known vulnerabilities and attacker skill level. The methodology was used to calculate risk reduction estimates for a specific SCADA system and for a specific set of control system security remedial actions. Despite an 86% reduction in the total number of vulnerabilities, the estimated time-to-compromise was increased only by about 3 to 30% depending on target and attacker skill level.

Miles A. McQueen; Wayne F. Boyer; Mark A. Flynn; George A. Beitel

2006-01-01T23:59:59.000Z

410

COBRA: A Hybrid Method for Software Cost Estimation, Benchmarking, and Risk Assessment  

E-Print Network (OSTI)

Current cost estimation techniques have a number of drawbacks. For example, developing algorithmic models requires extensive past project data. Also, off-the-shelf models have been found to be difficult to calibrate but inaccurate without calibration. Informal approaches based on experienced estimators depend on estimators' availability and are not easily repeatable, as well as not being much more accurate than algorithmic techniques. In this paper we present a method for cost estimation that combines aspects of algorithmic and experiential approaches (referred to as COBRA, COst estimation, Benchmarking, and Risk Assessment). We find through a case study that cost estimates using COBRA show an average ARE of 0.09, and show that the results are easily usable for benchmarking and risk assessment purposes. 1 Introduction Project and program managers require accurate and reliable cost estimates to allocate and control project resources, and to make realistic bids on external contracts. ...

Lionel C. Briand; Khaled El Emam; Frank Bomarius

1997-01-01T23:59:59.000Z

411

Guidelines for Ecological Risk Assessment  

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

5/002F 5/002F April 1998 Guidelines for Ecological Risk Assessment (Published on May 14, 1998, Federal Register 63(93):26846-26924) Risk Assessment Forum U.S. Environmental Protection Agency Washington, DC DISCLAIMER This document has been reviewed in accordance with U.S. Environmental Protection Agency policy and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. NOTICE This report contains the full text of the Guidelines for Ecological Risk Assessment. However, the format of this version differs from the Federal Register version, as follows: text boxes that are included in this document at their point of reference were instead listed at the end of the Federal Register document as text notes, due to format limitations for Federal Register documents.

412

SC Introduction to Risk Management  

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

OF OF SCIENCE Office of Science Risk Management November 4, 2009 Ray Won Office of Project Assessment Office of Science, U.S. Department of Energy Office of Science, U.S. Department of Energy http://www.science.doe.gov/opa/ 2 AGENDA AGENDA Wednesday, November 4, 2009, Building 2714, Oak Ridge 2:15 p.m. Introduction to SC Risk Management 2:25 p.m. Spallation Neutron Source 2:40 p.m. ORNL Risk Management Process 2:55 p.m. National Synchrotron Light Source II 3:10 p.m. Questions 3:30 p.m. End OFFICE OF SCIENCE 3 DOE Organization DOE Organization OFFICE OF SCIENCE Federal Energy Regulatory Commission Office of the Under Secretary for Nuclear Security/ Administrator for National Nuclear Security Administration Thomas P. D'Agostino Chief of Staff *The Deputy Secretary also serves as the Chief Operating Officer.

413

Spent Fuel Transportation Risk Assessment  

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

Fuel Transportation Risk Assessment Fuel Transportation Risk Assessment (SFTRA) Draft NUREG-2125 Overview for National Transportation Stakeholders Forum John Cook Division of Spent Fuel Storage and Transportation 1 SFTRA Overview Contents * Project and review teams * Purpose and goals * Basic methodology * Improvements relative to previous studies * Draft NUREG structure and format * Routine shipment analysis and results * Accident condition analysis and results * Findings and conclusions * Schedule 2 SFTRA Research and Review Teams * Sandia National Laboratory Research Team [$1.8M; 9/06-9/12] - Doug Ammerman - principal investigator - Carlos Lopez - thermal - Ruth Weiner - RADTRAN * NRC's SFTRA Technical Review Team - Gordon Bjorkman - structural

414

Initial Decision and Risk Analysis  

SciTech Connect

Decision and Risk Analysis capabilities will be developed for industry consideration and possible adoption within Year 1. These tools will provide a methodology for merging qualitative ranking of technology maturity and acknowledged risk contributors with quantitative metrics that drive investment decision processes. Methods and tools will be initially introduced as applications to the A650.1 case study, but modular spreadsheets and analysis routines will be offered to industry collaborators as soon as possible to stimulate user feedback and co-development opportunities.

Engel, David W.

2012-02-29T23:59:59.000Z

415

Methodology for Fire Configuration Risk Management  

Science Conference Proceedings (OSTI)

This report presents a methodology for performing bounding fire risk assessments at nuclear power plants (NPPs) for on-line equipment configurations. The methodology is designed to support risk assessments prior to performing maintenance, as required by 10CFR50.65 Section (a)(4), the Maintenance Rule. Risk assessments are typically performed for internal events using probabilistic risk assessments (PRAs). However, fire probabilistic risk assessments (FPRAs) are often not available or their use for this p...

2005-12-20T23:59:59.000Z

416

Geomagnetic Backtracing: A comparison of Tsyganenko 1996 and 2005 External Field models with AMS-02 data  

E-Print Network (OSTI)

We used a backtracing code to reconstruct particle trajectory inside the Earth Magnetosphere during the last solar active period (2011 and 2012) when very high Solar Wind pressure values were measured. We compared our results on AMS-02 proton and electron data with 2 different External Field models, namely Tsyganenko 1996 (T96) and 2005 (T05), both for quiet (defined as the periods when the solar wind pressure is below the average value, set at 2nPa) and active periods. Although T05 has been specifically designed for storm events, at high energy the particle trajectory is similar for the two models. For instance at rigidities larger than 50 GV, the RMS of angular difference between reconstructed asymptotic direction outside the Magnetosphere is of the order of the millirad, while it increases at intermediate energies. We also confirmed, as a function of the pointing direction, the well known East-West effect on the trajectory of primary particles and on the access solid angle on the AMS detector.

Boschini, M J; Della Torre, S; Gervasi, M; Grandi, D; Haino, S; La Vacca, G; Pensotti, S; Rancoita, P G; Rozza, D; Tacconi, M

2013-01-01T23:59:59.000Z

417

Modelling of a diode laser with a resonant grating of quantum wells and an external mirror  

SciTech Connect

A three-dimensional numerical model of a diode laser with a resonant grating of quantum wells (QWs) and an external mirror is developed and used to calculate diode laser pulses that are long compared to the time of reaching a stationary regime and are short enough to neglect heating of the medium. The consistent solutions of the Helmholtz field equation and the system of diffusion equations for inversion in each QW are found. A source of charge carriers can be both an electron beam and a pump laser beam. The calculations yielded the longitudinal and radial profiles of the generated field, as well as its wavelength and power. The effective threshold pump current is determined. In the created iteration algorithm, the calculation time linearly increases with the number of QWs, which allows one to find the characteristics of lasers with a large number of QWs. The output powers and beam divergence angles of a cylindrical laser are calculated for different cavity lengths and pump spot radii. After calculating the fundamental mode characteristics, high-order modes were additionally calculated on the background of the frozen carrier distributions in the QW grating. It is shown that all the competing modes remain below the excitation threshold for the pump powers used in the experiment. The calculated and experimental data for the case of pumping by a nanosecond electron beam are qualitatively compared.

Vysotskii, D V; Elkin, N N; Napartovich, A P; Kozlovskii, Vladimir I; Lavrushin, B M

2011-09-30T23:59:59.000Z

418

External flow radiators for reduced space powerplant temperatures. Technical information report  

SciTech Connect

Nuclear space powerplants can operate at temperatures below 900 K and use stainless steel construction without a weight penalty if new radiator concepts can achieve radiator weights of 1-3 kg/m{sup 2}. Conventional tube-and-fin radiators weight about 10 kg/m{sup 2} because of heavy tube walls to prevent meteroid puncture. Radiator designs that do not require meteroid protection are possible; they operate with fluids of low vapor pressure that can be exposed directly to space in external-flow radiators. An example is the {open_quotes}rotating disk radiator{close_quotes} in which centrifugal force drives a liquid film radially outward across a thin rotating metal disk; meteroid punctures cause no loss of fluid other than from evaporation, which can be small. An even lighter concept is the liquid drop radiator in which heat is radiated directly from moving liquid drops. Such radiator concepts look practical, and they may be much easier to develop than the high-temperature, refractory-metal power systems necessitated by conventional radiators.

Elliott, D.G.

1984-01-01T23:59:59.000Z

419

Extended Durability Testing of an External Fuel Processor for a Solid Oxide Fuel Cell (SOFC)  

SciTech Connect

Durability testing was performed on an external fuel processor (EFP) for a solid oxide fuel cell (SOFC) power plant. The EFP enables the SOFC to reach high system efficiency (electrical efficiency up to 60%) using pipeline natural gas and eliminates the need for large quantities of bottled gases. LG Fuel Cell Systems Inc. (formerly known as Rolls-Royce Fuel Cell Systems (US) Inc.) (LGFCS) is developing natural gas-fired SOFC power plants for stationary power applications. These power plants will greatly benefit the public by reducing the cost of electricity while reducing the amount of gaseous emissions of carbon dioxide, sulfur oxides, and nitrogen oxides compared to conventional power plants. The EFP uses pipeline natural gas and air to provide all the gas streams required by the SOFC power plant; specifically those needed for start-up, normal operation, and shutdown. It includes a natural gas desulfurizer, a synthesis-gas generator and a start-gas generator. The research in this project demonstrated that the EFP could meet its performance and durability targets. The data generated helped assess the impact of long-term operation on system performance and system hardware. The research also showed the negative impact of ambient weather (both hot and cold conditions) on system operation and performance.

Mark Perna; Anant Upadhyayula; Mark Scotto

2012-11-05T23:59:59.000Z

420

Examining the Spatial Distribution of Externalities: Freight Rail Traffic and Home Values in Los Angeles  

E-Print Network (OSTI)

This paper measures the impact of infrastructure expansion on local home values and examines the persistence of that impact over distance. Specifically, I exploit a natural experiment in which rail traffic from the Los Angeles seaport, one of the busiest in the country, was permanently redirected from several tracks to a central line, termed the Alameda Corridor. I link a rich, repeat-sale housing dataset to plausibly exogenous changes in local rail traffic to estimate these effects, controlling for local price trends using a Case-Shiller style housing index. Using the actual traffic changes the result is an estimated $3500 decrease in average home value where traffic increased and a $1300 increase in average home value where rail traffic was reduced. The welfare impact of concentrating a negative externality on a smaller population should depend on the convexity of the cost function, but I find evidence that suggests the marginal cost is symmetric for winners and losers. Instead, the total welfare impact hinges on the efficiency gains achieved by relocating the traffic from circuitous routes to the more direct Alameda Corridor, thereby affecting fewer homeowners. While the net gains are minimal, the re-routing of traffic resulted in a transfer of housing wealth of approximately $200 million.

Michael Futch

2011-01-01T23:59:59.000Z

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421

CONDITIONING AND PROTECTION CIRCUITRY FOR EXTERNAL MODULATION OF A PREPROGRAMMED GYROTRON CATHODE VOLTAGE COMMAND WAVEFORM  

Science Conference Proceedings (OSTI)

OAK-B135 The modulating voltages applied to the DIII-D gyrotrons are controlled by reference signals which are synthesized by arbitrary waveform generators.These generators allow ECH operators to pre-program reference waveforms consisting of ramps, flat tops, and various modulation shapes. This capability is independent of the DIII-D central timing and waveform facilities, which provides the ECH operators operational flexibility. The waveform generators include an amplitude modulation input, providing a means to control the pre-programmed waveform externally. This input is being used to allow the DIII-D plasma control system (PCS) to control gyrotron power in response top selected feedback signals. As the PCS control signal could potentially modulate the gyrotrons beyond operational limits or otherwise in a manner leading to recalcitrant rf generation, the control signal is conditioned so that its effect upon the ECH pre-programmed reference waveform is limited by conditions set by the ECH operators. The design of the circuitry which restricts the range over which the PCS control signal may modulate the reference waveform will be discussed. Test and DIII-D experimental results demonstrating the utility and effectiveness of gyrotron power modulated by the PCS will be presented.

PONCE,D; FERRON,J.R; LEGG,R.A

2003-10-01T23:59:59.000Z

422

OPEC as an actor in world politics: a study in its internal and external dimensions  

Science Conference Proceedings (OSTI)

The OPEC oil price increases of the 1970s and their economic and political effects on the oil-importing and oil-exporting countries have called attention to OPEC as an actor in world politics. This study examines the internal and external aspects of OPEC in light of the following hypotheses: (1) the bargaining power of the major oil companies has been curtailed in favor of OPEC members; (2) potential economic differences and political conflicts among OPEC members raise no real threat to the survival of OPEC; (3) development of alternative sources of energy will not likely restrain OPEC's active role in world politics; and (4) the unbridled power of OPEC to increase oil prices will likely be restrained by the effects of these increases on oil-importing countries. In addition to testing these hypotheses, this study attempts to trace OPEC's origin and explores the role of Saudi Arabia as the residual OPEC supplier. Since the OPEC revolution of October 1973, numerous academic works and press reports have been published on OPEC. The author depended heavily on these sources. In addition, information supplied by some prominent energy institutions during a research trip to Vienna, Austria, and Washington, DC was also used. The findings of this study tend to support the preceding hypotheses.

Al-Hulwah, M.I.

1981-01-01T23:59:59.000Z

423

Apparatus for measuring surface movement of an object that is subjected to external vibrations  

DOE Patents (OSTI)

A system for non-destructively measuring an object and controlling industrial processes in response to the measurement is disclosed in which an impulse laser generates a plurality of sound waves over timed increments in an object. A polarizing interferometer is used to measure surface movement of the object caused by the sound waves and sensed by phase shifts in the signal beam. A photon multiplier senses the phase shift and develops an electrical signal. A signal conditioning arrangement modifies the electrical signals to generate an average signal correlated to the sound waves which in turn is correlated to a physical or metallurgical property of the object, such as temperature, which property may then be used to control the process. External, random vibrations of the workpiece are utilized to develop discernible signals which can be sensed in the interferometer by only one photon multiplier. In addition the interferometer includes an arrangement for optimizing its sensitivity so that movement attributed to various waves can be detected in opaque objects. The interferometer also includes a mechanism for sensing objects with rough surfaces which produce speckle light patterns. Finally the interferometer per se, with the addition of a second photon multiplier is capable of accurately recording beam length distance differences with only one reading.

Kotidis, Petros A. (Waban, MA); Woodroffe, Jaime A. (North Reading, MA); Rostler, Peter S. (Newton, MA)

1997-01-01T23:59:59.000Z

424

Apparatus for measuring surface movement of an object that is subjected to external vibrations  

DOE Patents (OSTI)

A system for non-destructively measuring an object and controlling industrial processes in response to the measurement is disclosed in which an impulse laser generates a plurality of sound waves over timed increments in an object. A polarizing interferometer is used to measure surface movement of the object caused by the sound waves and sensed by phase shifts in the signal beam. A photon multiplier senses the phase shift and develops an electrical signal. A signal conditioning arrangement modifies the electrical signals to generate an average signal correlated to the sound waves which in turn is correlated to a physical or metallurgical property of the object, such as temperature, which property may then be used to control the process. External, random vibrations of the workpiece are utilized to develop discernible signals which can be sensed in the interferometer by only one photon multiplier. In addition the interferometer includes an arrangement for optimizing its sensitivity so that movement attributed to various waves can be detected in opaque objects. The interferometer also includes a mechanism for sensing objects with rough surfaces which produce speckle light patterns. Finally the interferometer per se, with the addition of a second photon multiplier is capable of accurately recording beam length distance differences with only one reading. 38 figs.

Kotidis, P.A.; Woodroffe, J.A.; Rostler, P.S.

1997-04-22T23:59:59.000Z

425

Heat transfer performance of an external receiver pipe under unilateral concentrated solar radiation  

Science Conference Proceedings (OSTI)

The heat transfer and absorption characteristics of an external receiver pipe under unilateral concentrated solar radiation are theoretically investigated. Since the heat loss ratio of the infrared radiation has maximum at moderate energy flux, the heat absorption efficiency will first increase and then decrease with the incident energy flux. The local absorption efficiency will increase with the flow velocity, while the wall temperature drops quickly. Because of the unilateral concentrated solar radiation and different incident angle, the heat transfer is uneven along the circumference. Near the perpendicularly incident region, the wall temperature and absorption efficiency slowly approaches to the maximum, while the absorption efficiency sharply drops near the parallelly incident region. The calculation results show that the heat transfer parameters calculated from the average incident energy flux have a good agreement with the average values of the circumference under different boundary conditions. For the whole pipe with coating of Pyromark, the absorption efficiency of the main region is above 85%, and only the absorption efficiency near the parallelly incident region is below 80%. In general, the absorption efficiency of the whole pipe increases with flow velocity rising and pipe length decreasing, and it approaches to the maximum at optimal concentrated solar flux. (author)

Jianfeng, Lu; Jing, Ding [School of Engineering, Sun Yat-Sen University, Guangzhou 510006 (China); Jianping, Yang [Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South China University of Technology, Guangzhou 510640 (China)

2010-11-15T23:59:59.000Z

426

Technology assessment of external heat systems for Stirling heat pumps. Final report  

SciTech Connect

A technology assessment and design improvement effort was undertaken for the Stirling engine heat pump external heat system (EHS) in order to reduce costs. It was found that only two applicable EHS design approaches have been developed to any extent: a relatively undeveloped design featuring a premixed fuel and air transpiration burner, and a turbulent diffusion type burner system developed by Mechanical Technology, Inc. To evaluate and optimize the design concepts, an analytical model was developed that examined design and performance variables. The model calculated key temperatures, allowing the specification of materials requirements. Adherence to American National Standards Institute appliance furnace code material specifications was assumed. Concepts for EHS control systems were evaluated, and a cost-effective control system design was developed for the turbulent diffusion burner EHS. The study reveals that optimizing the diffusion burner EHS design can result in significant cost savings. No clear choice between the diffusion burner and transpiration burner systems could be determined from this study, but the designs of both were further developed and improved. Estimates show the EHS based on a transpiration burner to have a manufactured cost that is roughly 70% of the turbulent diffusion burner EHS cost, but fuel efficiency is lower by about 18%.

Vasilakis, A.D. [Advanced Mechanical Technology, Inc., Newton, MA (United States)

1993-12-01T23:59:59.000Z

427

Too Good to Be True? The Unintended Signaling Effects of Educational Prestige on External Expectations of Team Performance  

Science Conference Proceedings (OSTI)

In this paper we report the results of two experimental studies designed to test how demographic characteristics affect outsiders' assessments of a firm's top managers. We draw on theories of evaluation and status characteristics to examine the interactive ... Keywords: affirmative action bias, diversity, external evaluation, status

Stephen J. Sauer; Melissa C. Thomas-Hunt; Patrick A. Morris

2010-09-01T23:59:59.000Z

428

The Effects of Neutrally Buoyant, Externally Attached Transmitters on Swimming Performance and Predator Avoidance of Juvenile Chinook Salmon  

Science Conference Proceedings (OSTI)

The presence of an externally attached telemetry tag is often associated with the potential for impaired swimming performance (i.e., snags and drag) as well as increased susceptibility to predation, specifically for smaller fish. The effects on swimming performance due to the presence of a neutrally buoyant externally attached acoustic transmitter were examined by comparing critical swimming speeds (Ucrit) for juvenile Chinook salmon tagged with two different neutrally buoyant external transmitters (Type A and B), nontagged individuals, and those surgically implanted with the current JSATS acoustic transmitter. Fish tagged with the Type A and B designs had lower Ucrit when compared to nontagged individuals. However, there was no difference in Ucrit among fish tagged with Type A or B designs compared to those with surgically implanted tags. Further testing was then conducted to determine if predator avoidance ability was affected due to the presence of Type A tags when compared to nontagged fish. No difference was detected in the number of tagged and nontagged fish consumed by rainbow trout throughout the predation trials. The results of this study support the further testing on the efficacy of a neutrally buoyant externally attached telemetry tag for survival studies involving juvenile salmonids passing through hydro turbines.

Janak, Jill M.; Brown, Richard S.; Colotelo, Alison HA; Pflugrath, Brett D.; Stephenson, John R.; Deng, Zhiqun; Carlson, Thomas J.; Seaburg, Adam

2012-08-01T23:59:59.000Z

429

Wegner-type bounds for a two-particle continuous Anderson model with an alloy-type external potential  

E-Print Network (OSTI)

We consider a two-particle quantum systems in a d-dimensional Euclidean space with interaction and in presence of a random external potential (a continuous two-particle Anderson model). We establish Wegner-type estimates (inequalities) for such models, assessing the probability that random spectra of Hamiltonians in finite volumes intersect a given set.

A. Boutet de Monvel; V. Chulaevsky; P. Stollmann; Y. Suhov

2008-12-14T23:59:59.000Z

430

Development of Advanced Flow-Through External Pressure-Balanced Reference Electrode for Temperatures up to 400 degrees C.  

Science Conference Proceedings (OSTI)

Development of an advanced flow-through external pressure-balanced reference electrode opens the door for more accurate measurements of corrosion potential, redox potential, and pH in power plant waters at temperatures up to 400 degrees C. Such measurements allow a more accurate assessment of an environment's corrosivity and promote more effective corrosion control.

1998-01-29T23:59:59.000Z

431

Effects of external fields on the excitonic emission from single InAs/GaAs quantum dots  

Science Conference Proceedings (OSTI)

A low-temperature micro-photoluminescence (?-PL) investigation of InAs/GaAs quantum dots (QDs) exposed to a lateral external electric field is reported. It is demonstrated that the QDs PL signal could be increased several times by altering the ... Keywords: Exciton, Micro-luminescence, Quantum dot

P. O. Holtz; E. S. Moskalenko; M. Larsson; K. F. Karlsson; W. V. Schoenfeld; P. M. Petroff

2008-03-01T23:59:59.000Z

432

IEA-Risk Quantification and Risk Management in Renewable Energy Projects |  

Open Energy Info (EERE)

IEA-Risk Quantification and Risk Management in Renewable Energy Projects IEA-Risk Quantification and Risk Management in Renewable Energy Projects Jump to: navigation, search Tool Summary Name: IEA-Risk Quantification and Risk Management in Renewable Energy Projects Agency/Company /Organization: International Energy Agency Sector: Energy Focus Area: Renewable Energy Topics: Finance, Implementation, Market analysis Resource Type: Presentation, Lessons learned/best practices Website: www.iea-retd.org/files/RISK%20IEA-RETD%20(2011-6).pdf Cost: Free IEA-Risk Quantification and Risk Management in Renewable Energy Projects Screenshot References: IEA-Risk Quantification and Risk Management in Renewable Energy Projects[1] Logo: IEA-Risk Quantification and Risk Management in Renewable Energy Projects "This report presents a transparent and reproducible set of techniques to

433

C:\WORK\TSD\APPC.926  

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

MODIFIED RAGS HHEM EQUATIONS Risk external [RS x SF e x EF r 365 x ED r ] x [ET ro (ET ri x GSF)] Risk external [RS x SF e x EF c 365 x ED c ] x [ET co (ET ci x GSF)] C-1 Review Draft - 9/26/94 Do Not Cite Or Quote (1a) (1b) EQUATIONS FOR CALCULATING EXTERNAL EXPOSURE RISK (a) RURAL RESIDENTIAL EXPOSURE: (b) COMMERCIAL/INDUSTRIAL EXPOSURE: where: Parameter Definition (units) Default Value RS Radionuclide soil concentration (pCi/g) 1 SF External exposure slope factor (risk/yr per pCi/g) radionuclide-specific e GSF Gamma shielding factor - indoor (unitless) 0.8 (20% shielding) ET Exposure time fraction - residential, outdoor (unitless) 0.02 (0.439 hr/24 hr) ro ET Exposure time fraction - commercial/industrial, outdoor 0.02 (0.5 hr/24 hr) co (unitless) ET Exposure time fraction - residential, indoor (unitless) 0.62 (14.93 hr/24 hr)

434

Externally-fired combined cycle: An effective coal fueled technology for repowering and new generation  

SciTech Connect

The Externally-Fired Combined Cycle (EFCC) is an attractive emerging technology for powering high efficiency combined gas and steam turbine cycles with coal or other ash bearing fuels. In the EFCC, the heat input to a gas turbine is supplied indirectly through a ceramic air heater. The air heater, along with an atmospheric coal combustor and ancillary equipment, replaces the conventional gas turbine combustor. A steam generator located downstream from the ceramic air heater and steam turbine cycle, along with an exhaust cleanup system, completes the combined cycle. A key element of the EFCC Development Program, the 25 MMBtu/h heat-input Kennebunk Test Facility (KTF), has recently begun operation. The KTF has been operating with natural gas and will begin operating with coal in early 1995. The US Department of Energy selected an EFCC repowering of the Pennsylvania Electric Company`s Warren Station for funding under the Clean Coal Technology Program Round V. The project focuses on repowering an existing 48 MW (gross) steam turbine with an EFCC power island incorporating a 30 MW gas turbine, for a gross power output of 78 MW and a net output of 72 MW. The net plant heat rate will be decreased by approximately 30% to below 9,700 Btu/kWh. Use of a dry scrubber and fabric filter will reduce sulfur dioxide (SO{sub 2}) and particulate emissions to levels under those required by the Clean Air Act Amendments (CAAA) of 1990. Nitrogen oxides (NO{sub x}) emissions are controlled by the use of staged combustion. The demonstration project is currently in the engineering phase, with startup scheduled for 1997. This paper discusses the background of the EFCC, the KTF, the Warren Station EFCC Clean Coal Technology Demonstration Project, the commercial plant concept, and the market potential for the EFCC.

Stoddard, L.E.; Bary, M.R. [Black and Veatch, Kansas City, MO (United States); Gray, K.M. [Pennsylvania Electric Co., Johnstown, PA (United States); LaHaye, P.G. [Hague International, South Portland, ME (United States)

1995-06-01T23:59:59.000Z

435

A GENERAL RELATIVISTIC EXTERNAL COMPTON-SCATTERING MODEL FOR TeV EMISSION FROM M87  

SciTech Connect

M87 is the first detected non-blazar extragalactic tera-electron-volt (TeV) source with rapid variation and a very flat spectrum in the TeV band. To explain the two peaks in the spectral energy distribution of the nucleus of M87, which is similar to that of blazars, the most commonly adopted models are the synchrotron self-Compton-scattering models and the external inverse Compton (EIC) scattering models. Considering that there is no correlated variation in the soft band (from radio to X-ray) matching the TeV variation and that the TeV sources should not suffer from {gamma}{gamma} absorption due to the flat TeV spectrum, the EIC models are advantageous in modeling the TeV emission from M87. In this paper, we propose a self-consistent EIC model to explain the flat TeV spectrum of M87 within the framework of fully general relativity, where the background soft photons are from the advection-dominated accretion flow around the central black hole, and the high-energy electrons are from the mini-jets that are powered by the magnetic reconnection in the main jet. In our model, both the TeV flares observed in the years 2005 and 2008 could be well explained: the {gamma}{gamma} absorption for TeV photons is very low, even inside the region very close to the black hole 20R{sub g} {approx} 50R{sub g} ; at the same region, the average EIC cooling time ({approx}10{sup 2} {approx} 10{sup 3} s) is short, which is consistent with the observed timescale of the TeV variation. Furthermore, we also discuss the possibility that the accompanying X-ray flare in 2008 is due to the direct synchrotron radiation of the mini-jets.

Cui Yudong; Yuan Yefei [Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Sciences and Technology of China, CAS, Hefei, Anhui 230026 (China); Li Yanrong; Wang Jianmin, E-mail: yfyuan@ustc.edu.cn [Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, CAS, 19B Yuquan Road, Beijing 100049 (China)

2012-02-20T23:59:59.000Z

436

NREL Researchers Demonstrate External Quantum Efficiency Surpassing 100% in a Quantum Dot Solar Cell (Fact Sheet)  

DOE Green Energy (OSTI)

A new device that produces and collects multiple electrons per photon could yield inexpensive, high-efficiency photovoltaics. A new device developed through research at the National Renewable Energy Laboratory (NREL) reduces conventional losses in photovoltaic (PV) solar cells, potentially increasing the power conversion efficiency-but not the cost-of the solar cells. Solar cells convert optical energy from the sun into usable electricity; however, almost 50% of the incident energy is lost as heat with present-day technologies. High-efficiency, multi-junction cells reduce this heat loss, but their cost is significantly higher. NREL's new device uses excess energy in solar photons to create extra charges rather than heat. This was achieved using 5-nanometer-diameter quantum dots of lead selenide (PbSe) tightly packed into a film. The researchers chemically treated the film, and then fabricated a device that yielded an external quantum efficiency (number of electrons produced per incident photon) exceeding 100%, a value beyond that of all current solar cells for any incident photon. Quantum dots are known to efficiently generate multiple excitons (a bound electron-hole pair) per absorbed high-energy photon, and this device definitively demonstrates the collection of multiple electrons per photon in a PV cell. The internal quantum efficiency corrects for photons that are not absorbed in the photoactive layer and shows that the PbSe film generates 30% to 40% more electrons in the high-energy spectral region than is possible with a conventional solar cell. While the unoptimized overall power conversion efficiency is still low (less than 5%), the results have important implications for PV because such high quantum efficiency can lead to more electrical current produced than possible using present technologies. Furthermore, this fabrication is also amenable to inexpensive, high-throughput roll-to-roll manufacturing.

Not Available

2011-12-01T23:59:59.000Z

437

Variation in Adherence to External Beam Radiotherapy Quality Measures Among Elderly Men With Localized Prostate Cancer  

Science Conference Proceedings (OSTI)

Purpose: To characterize the variation in adherence to quality measures of external beam radiotherapy (EBRT) for localized prostate cancer and its relation to patient and provider characteristics in a population-based, representative sample of U.S. men. Methods and Materials: We evaluated EBRT quality measures proposed by a RAND expert panel of physicians among men aged {>=}65 years diagnosed between 2000 and 2002 with localized prostate cancer and treated with primary EBRT using data from the linked Surveillance, Epidemiology, and End Results (SEER)-Medicare program. We assessed the adherence to five EBRT quality measures that were amenable to analysis using SEER-Medicare data: (1) use of conformal RT planning; (2) use of high-energy (>10-MV) photons; (3) use of custom immobilization; (4) completion of two follow-up visits with a radiation oncologist in the year after therapy; and (5) radiation oncologist board certification. Results: Of the 11,674 patients, 85% had received conformal RT planning, 75% had received high-energy photons, and 97% had received custom immobilization. One-third of patients had completed two follow-up visits with a radiation oncologist, although 91% had at least one visit with a urologist or radiation oncologist. Most patients (85%) had been treated by a board-certified radiation oncologist. Conclusions: The overall high adherence to EBRT quality measures masked substantial variation in geography, socioeconomic status in the area of residence, and teaching affiliation of the RT facility. Future research should examine the reasons for the variations in these measures and whether the variation is associated with important clinical outcomes.

Bekelman, Justin E. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)], E-mail: bekelmaj@mskcc.org; Zelefsky, Michael J. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Jang, Thomas L. [Department of Surgery, Division of Urology, Sidney Kimmel Center for Prostate and Urologic Cancers, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Basch, Ethan M.; Schrag, Deborah [Department of Epidemiology and Biostatistics (Health Outcomes Research Group), Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)

2007-12-01T23:59:59.000Z

438

Some Simple Arguments about Cost Externalization and its Relevance to the Price of Fusion Energy  

Science Conference Proceedings (OSTI)

The primary goal of fusion energy research is to develop a source of energy that is less harmful to the environment than are the present sources. A concern often expressed by critics of fusion research is that fusion energy will never be economically competitive with fossil fuels, which in 1997 provided 75% of the world's energy. And in fact, studies of projected fusion electricity generation generally project fusion costs to be higher than those of conventional methods. Yet it is widely agreed that the environmental costs of fossil fuel use are high. Because these costs aren't included in the market price, and furthermore because many governments subsidize fossil fuel production, fossil fuels seem less expensive than they really are. Here we review some simple arguments about cost externalization which provide a useful background for discussion of energy prices. The collectively self-destructive behavior that is the root of many environmental problems, including fossil fuel use, was termed ''the tragedy of the commons'' by the biologist G. Hardin. Hardin's metaphor is that of a grazing commons that is open to all. Each herdsman, in deciding whether to add a cow to his herd, compares the benefit of doing so, which accrues to him alone, to the cost, which is shared by all the herdsmen using the commons, and therefore adds his cow. In this way individually rational behavior leads to the collective destruction of the shared resource. As Hardin pointed out, pollution is one kind of tragedy of the commons. CO{sub 2} emissions and global warming are in this sense classic tragedies.

Budny, R.; Winfree, R.

1999-09-27T23:59:59.000Z

439

Gains From Real-Time Tracking of Prostate Motion During External Beam Radiation Therapy  

SciTech Connect

Purpose: To study the gains from real-time tracking of prostate motion and threshold-based intervention and the feasibility of margin reduction for external beam radiation therapy of prostate cancer. Methods and Materials: Prostate intrafractional motion data from 775 randomly selected treatment fractions (105 prostate patients) were analyzed. Statistical distributions of prostate intrafractional displacement from baseline were used for treatment margin calculation together with other geometrical uncertainties for all patients and a subset of 7 patient who exhibited the largest intrafractional motion. Compared with treatment without any intrafractional intervention, potential reductions in treatment margins were evaluated for treatments with 5-mm and 3-mm threshold-based intervention and four-dimensional (4D) treatments with and without prostate rotation correction. Results: The percentage of time of prostate displacement from the baseline by 3 mm and 5 mm in any direction was 13.4% and 1.8%, respectively, for the general patient population. The ratios were 41% and 15% for the 7 selected patients. Reductions in the posterior margin were 0.2, 0.5, 1.3, and 3.1 mm from the original 7.7 mm, respectively, for 5-mm and 3-mm threshold-based treatments and 4D treatments with and without prostate rotation correction for all patients. They were 1.3, 1.9, 3.1 and 4.9 mm from the original 9.5 mm, corresponding to the 7 selected patients. The treatment margin reductions in other directions were even smaller. Conclusions: Real-time motion tracking and threshold-based intrafractional intervention may play a significant roll in treatment margin reduction for a small fraction of patients but not for the general patient population. Four-dimensional treatments with prostate rotation correction can reduce the treatment margin more significantly.

Li Jinsheng, E-mail: jinsheng.li@fccc.ed [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Jin Lihui; Pollack, Alan; Horwitz, Eric M.; Buyyounouski, Mark K.; Price, Robert A.; Ma Changming [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)

2009-12-01T23:59:59.000Z

440

External reflectors for large solar collector arrays, simulation model and experimental results  

SciTech Connect

A model for the calculation of incident solar radiation from flat-and CPC-shaped external reflectors onto flat plate solar collector arrays has been developed. Assuming an infinite length of the collector/reflector rows, the basic calculations of incident radiation in the collector plane from the reflector become very simple. The direct radiation from the sun is projected into a vertical plane perpendicular to the collector and reflector plane. The incident radiation onto the collector, including corrections for shadowing and lost radiation above the collector, can then be calculated using 2-D geometry. For very short collector/reflector rows a 3-D model is given for correction for the loss of specular radiation in the east west direction. The diffuse radiation is assumed to be isotropic. The diffuse radiation in the collector plane is calculated using view factors. CPC-shaped reflectors can be treated with the same models by introducing an equivalent flat reflector. The incidence angle for the solar radiation from the reflector onto the collector is in most cases higher than the incidence angle for the radiation directly from the sun. Therefore the incidence angle characteristics of the collector glazing and absorber become more important in this application. Equations are given for the incidence angles for diffuse and beam radiation. An annual performance increase of over 30%, 100-120 kW h/m[sup 2], has been measured for aged (four operating seasons) flat reflectors in the Swedish climate. With a CPC-shaped reflector and new reflector materials, a performance increase of up to 170 kW h/m[sup 2] is not unrealistic. This means that the collector and ground area requirement can be reduced by more than 30% for a given load.

Perers, B.; Karlsson, B. (Vattenfall Utveckling, Aelvkarleby (Sweden))

1993-11-01T23:59:59.000Z

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441

FAQ 37-What are the potential health risks from transportation of depleted  

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

depleted uranium metal or oxide? depleted uranium metal or oxide? What are the potential health risks from transportation of depleted uranium metal or oxide? In the PEIS, risks associated with transportation of depleted uranium oxide and metal were estimated for transport by either rail or truck. Normal transport of oxide or metal would result in low-level external exposure to radiation for persons in the vicinity of a shipment. Based on estimates in the PEIS, the levels of exposure would result in negligible increased cancer risks. Risks from material released in an accident were also estimated. For a hypothetical railcar accident involving powder U3O8 that was assumed to occur in a highly-populated urban area under stable (nighttime) weather conditions, it was estimated that up to 20 people might experience irreversible adverse effects from chemical toxicity, with no fatalities expected. Approximately 2 potential latent cancer fatalities from radiological hazards are estimated for an accident under the same conditions. The probability of such an accident occurring is very low. The consequences from a truck accident would be lower, because trucks have a smaller shipment capacity. The consequences of transportation accidents involving depleted uranium metal would be much smaller than those involving uranium oxide because uranium metal would be in the form of solid blocks and would not be easily dispersed in an accident.

442

Risk effectiveness evaluation of surveillance testing  

SciTech Connect

In nuclear power plants surveillance tests are required to detect failures in standby safety system components as a means of assuring their availability in case of an accident. However, the performance of surveillance tests at power may have adverse impact on safety as evidenced by the operating experience of the plants. The risk associated with a test includes two different aspects: (1) a positive aspect, i.e., risk contribution detected by the test, that results from the detection of failures which occur between tests and are detected by the test, and (2) a negative aspect, i.e., risk contribution caused by the test, that includes failures and degradations which are caused by the test or are related to the performance of the test. In terms of the two different risk contributions, the risk effectiveness of a test can be simply defined as follows: a test is risk effective if the risk contribution detected by the test is greater than the risk contribution caused by the test; otherwise it is risk ineffective. The methodology presentation will focus on two important kinds of negative test risk impacts, that is, the risk impacts of test-caused transients and equipment wear-out. The evaluation results of the risk effectiveness of the test will be presented in the full paper along with the risk assessment methodology and the insights from the sensitivity analysis. These constitute the core of the NUREG/CR-5775.

Martorell, S.; Kim, I.S. (Universidad Politecnica de Valencia (Spain). Dept. de Ingenieria Quimica y Nuclear); Samanta, P.K. (Brookhaven National Lab., Upton, NY (United States)); Vesely, W.E. (Science Applications International Corp., Columbus, OH (United States))

1992-07-20T23:59:59.000Z

443

Guidelines for Carcinogen Risk Assessment  

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

P-03/001F P-03/001F March 2005 Guidelines for Carcinogen Risk Assessment Risk Assessment Forum U.S. Environmental Protection Agency Washington, DC DISCLAIMER This document has been reviewed in accordance with U.S. Environmental Protection Agency policy and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. CONTENTS 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1. PURPOSE AND SCOPE OF THE GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2. ORGANIZATION AND APPLICATION OF THE GUIDELINES . . . . . . . . . . . 1-3 1.2.1. Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2.2. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.3. KEY FEATURES OF THE CANCER GUIDELINES .

444

The Risk Assessment Information System  

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

ETTP: Relative Risk Ranking Sites ETTP: Relative Risk Ranking Sites These rankings are based on the EM-40 Release Site Methodology. Select a release site to receive information concerning that site. Please note that not all of the listed sites are linked to further information. 518 Main Substation 600 Series Oil Storage Area 695/687 Oil Storage Operations Building 523 Grease {Burial Site} Building 526 Heavy Equipment Shop Building 569 Heavy Equipment Shop Building 665 Steam Shed Building F-29 Gasoline Station Demolition Materials Placement Area Duct Island Road F-05 Laboratory Burial Ground F-07 Material Warehouse F-08 Laboratory Flannagans Loop Road Groundwater Plume Centered Under North Side of K-1070-C/D Groundwater Plume Emanating from K-1401 Acid Line Groundwater Plume near Mitchell Branch Groundwater Plume Originating from K-1420 Building

445

The Risk Assessment Information System  

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

ORR Offsite: Relative Risk Ranking Sites ORR Offsite: Relative Risk Ranking Sites These rankings are based on the EM-40 Release Site Methodology. Select a release site to receive information concering that site. Please note that not all of the listed sites are linked to further information. Animal Burial Site I Animal Burial Site II Animal Burial Site III Atomic City Auto Parts - Contaminated Creek Sediments Atomic City Auto Parts - Contaminated Soils Atomic City Auto Parts - Surface Debris Clinch River/Poplar Creek CSX Railroad David Witherspoon, Inc., 1630 Site David Witherspoon, Inc., 901 Site Low Dose Rate Irradiation Facility (LDRIF) Lower East Fork Poplar Creek - Bruner Site Lower East Fork Poplar Creek - NOAA Site Lower Watts Bar Reservoir Oak Ridge Tool Engineering, Inc. Solway Drums Site Swine Waste Lagoons

446

The Risk Assessment Information System  

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

ORNL: Relative Risk Ranking Sites ORNL: Relative Risk Ranking Sites These rankings are based on the EM-40 Release Site Methodology. Select a release site to receive information concerning that site. Please note that not all of the listed sites are linked to further information. 3001 Storage Canal (OGR) 3517 Filter Pit (Fission Product Development Laboratory) Abandoned Burn Pit Abandoned Sanitary Waste Pipeline and Septic Tank N of 7917 Abandoned Underground Waste Oil Storage Tank 7002A Above-ground Demineralized-water Holding Tanks Aircraft Reactor Experiment Contaminated Tool Storage Aircraft Reactor Experiment Surface Impoundment Buried Scrap Metal Area C-14 Allocation in White Oak Trees C-14 Allocation in White Pine Trees C-14 Allocation in Woody Biomass Plantation Species C-14 Efflux in Yellow Poplar Stand

447

Connecticut Yankee risk reduction initiative  

Science Conference Proceedings (OSTI)

A Risk Reduction Task Force, comprised of an interdisciplinary team of Connecticut Yankee (CY) and Northeast Utilities (NU) personnel, was formed to identify means of reducing the core-melt frequency (CMF) and the overall risk at CY. Currently, Connecticut Yankee is the only NU nuclear power plant with a CMF significantly above the corporate nuclear safety goal of < 10{sup {minus}4}/yr. It was the purpose of this task force to brainstorm ideas for design and/or procedural changes that would improve safety while allowing for operational flexibility, and also give consideration to licensing issues and design basis/deterministic concerns. The final recommendations by the task force include the installation of a tornado-protected, air-cooled diesel generator; reconfiguration of the auxiliary feedwater (AFW) flow path; addition of a diverse AFW pump; additional modifications to address tornado concerns; and repowering of several motor-operated valves.

Oswald, E.A.; Dube, D.A.; Becker, W.H.; Flannery, G.A.; Weyland, S.J. (Northeast Utilities Service Co., Hartford, CT (United States))

1992-01-01T23:59:59.000Z

448

RS-NWPA [National Waste Policy Act]  

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

Minning (OCRWM) Minning (OCRWM) I 586-4349 Ed Nugent DOE 586-3288 6. C k K T : F I C A T E O F A G E N C Y R E P R E S E N T A T I V E r - . . REQUEST FOR RECORDS DISPOSITION AUTHORITY (See tnstructions on reverse) GENERAL SERVICES ADMINISTRATION NATIONAL ARCHIVES AND RECORDS SERVICE. WASHINGTON, DC 20408 i F ROha (AECnc? or rstcblishmcnt) a % - e ~ - - - Office of C i v i l f a n R a d i o a c t i v e Naste Mar -gement - 3 M I N O R S U B D l V l S l O N - - 6 N A M E O F P E R S O N W l T P W H O M T O C O N F E R I 5. TELEPHONE E X T . I hereby cert~fy that I am authorized to act for thls agency In ms.ter: perta~ning to the disposal of the aoency's record: that the records proposed for drsposal In this Request of ' 2 ' page(s) are not now needed for the business o f th agency or w ~ i l not be needed after ;he retention per~ods speclf~ed; and that written concurrence from the Gener:

449

RS-Weapons X-Rays  

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

and Uperating Con t and Uperating Con t r a c t o r s - - - - - ---- . --... -. - - . --- 3 . M I N O R S U B D I V I S I O N REQUEST FOR RECORDS DISPOSITION AUTHORITY (See Instructions on reverse) To. G E N E R A L SERVICES A D M I N I S T R A T I O N 4 A T I O N A L A R C H I V E S A N D RECORDS SERVICE, N A S H I N O T O N , D C 20408 - - ., 1. F R o b ~ A s s * r r r \ o r r r l a b ~ ~ r h r n s . ~ t l l U.S. Department of Energy 2-.M A J-i- n 3 - " d d D i \ j < I r;c - - - . - . - . -- . ts~,vu: far l r r r n s I h a t r r ~ y t x marked "d~ssos~r.or -I aoprovrd or ..v.,Ind-awn" ~n column '0 I f no r 4 are nrooosed for dispss~l. (he slgnaiure sf the Arch11 L E A V E B L A N K ,.baku,-- - - - - -- - - - D A T E R E C E I V E 0 Lr& ! - - -- NOTIFICATION T O G E ~ C Y . _ _ ._ - _----- - . - In ~ c c o r d a n c e rarllh 1ht1 provts~onr 3f 14 U S C C I I I O e,rDowl r t g u c s ' . ~ t ~ c l u d ~ n q amandrnen ts. 's aUPl

450

Applications of Probabilistic Risk Assessment  

SciTech Connect

This report provides a summary of potential and actual applications of Probabilistic Risk Assessment (PRA) technology and insights. Individual applications are derived from the experiences of a number of US nuclear utilities. This report identifies numerous applications of PRA techniques beyond those typically associated with PRAs. In addition, believing that the future use of PRA techniques should not be limited to those of the past, areas of plant operations, maintenance, and financial resource allocation are discussed. 9 refs., 3 tabs.

Burns, K.J.; Chapman, J.R.; Follen, S.M.; O'Regan, P.J. (Yankee Atomic Electric Co., Bolton, MA (USA))

1991-05-01T23:59:59.000Z

451

Manhole Event Risk Management Strategies  

Science Conference Proceedings (OSTI)

This report provides a high-level overview of EPRI research into gas-related explosions in structures in underground distribution systems, and various mitigation approaches considered in the past to reduce the risk of damage resulting from an event. The project team tested some of these approaches at the EPRI-Lenox research facility, and the report summarizes the results of these tests. Utilities have also deployed some of the approaches in the field.

2008-12-23T23:59:59.000Z

452

Risk-Related research at LBNL  

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

Risk-Related Research at Lawrence Berkeley National Laboratory Risk-Related Research at Lawrence Berkeley National Laboratory Table of Contents Human Exposure Assessment Cancer Risk Assessment Extrapolation of Cancer Risks from Animals to Humans Biodosimetry to Assess Human Genotoxicity from Mutagenic or Clastogenic Agents Transgenic Mouse Models Biological Effects of Complex Chemical Mixtures Physiologically-Based Pharmacokinetic (PBPK) and Cancer Models Electromagnetic Fields Risks of Ionizing Radiation in Space Risk-Based Remediation Strategy for Kesterson Reservoir Wetland Restoration and Sediment Quality Integrated, Risk-Based Environmental Clean-up SELECT: Environmental Decision-Making Software Introduction The Ernest Orlando Lawrence Berkeley National Laboratory (LBNL) conducts research to improve the scientific basis of risk assessment.

453

High performance in Procurement Risk Management  

E-Print Network (OSTI)

Research on Procurement Risk Management has been conducted by Accenture and MIT in order to identify the best practices used to manage commodity price volatility and supplier risk. In today's increasingly turbulent market ...

Olsha, Maya (Olsha-Yehiav)

2010-01-01T23:59:59.000Z

454

PFPC: Building an IT Risk Management Competency  

E-Print Network (OSTI)

IT Risk management is becoming increasingly important for CIOs and their executive counterparts. Educators and managers have materials they can use to discuss specific IT risks in project management, security and other ...

Westerman, George

2005-07-29T23:59:59.000Z

455

Benefits vs. risks of fish consumption  

Science Conference Proceedings (OSTI)

The benefits of fish consumption outweigh the risks, according to a joint expert consultation released in October 2011 by two United Nations agencies. Benefits vs. risks of fish consumption News Inform Magazine Inform Archives Health Nutrition Omega

456

How Sovereign Is Sovereign Credit Risk?  

E-Print Network (OSTI)

We study the nature of sovereign credit risk using an extensive set of sovereign CDS data. We find that the majority of sovereign credit risk can be linked to global factors. A single principal component accounts for 64 ...

Longstaff, Francis A.

457

Does accounting quality mitigate risk shifting?  

E-Print Network (OSTI)

This study examines the effect of financial reporting quality on risk shifting, an investment distortion that is caused by shareholders' incentives to engage in high-risk projects that are detrimental to debt holders. I ...

Loktionov, Yuri V

2009-01-01T23:59:59.000Z

458

Creation and Communication of Hurricane Risk Information  

Science Conference Proceedings (OSTI)

Reducing loss of life and harm when a hurricane threatens depends on people receiving hurricane risk information that they can interpret and use in protective decisions. To understand and improve hurricane risk communication, this article examines how ...

Julie L. Demuth; Rebecca E. Morss; Betty Hearn Morrow; Jeffrey K. Lazo

2012-08-01T23:59:59.000Z

459

Adjusting External Doses from the ORNL and Y-12 Facilities for the Oak Ridge Nuclear Facilities Mortality Study  

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

Adjusting External Doses from the ORNL and Y-12 Adjusting External Doses from the ORNL and Y-12 Facilities for the Oak Ridge Nuclear Facilities Mortality Study A Supplemental Report to Data Collection, Validation, and Description for the Oak Ridge Nuclear Facilities Mortality Study J. P. Watkins (1), D. L. Cragle (1), E. L. Frome (2), C. M. West (1), D. J. Crawford- Brown (3), and W. G. Tankersley (1) (1) Oak Ridge Institute for Science and Education, Environmental and Health Sciences Division, Center for Epidemiologic Research, Oak Ridge, TN 37831-0117. (2) Oak Ridge National Laboratory, Oak Ridge, TN 37830. (3) School of Public Health, University of North Carolina, Chapel Hill, NC 27599-7400. This report concerns work undertaken as part of the Health and Mortality Study of Department of

460

External and Internal Guest Binding of a Highly Charged Supramolecular Host in Water: Deconvoluting the Very Different Thermodynamics  

SciTech Connect

NMR, UV-vis and isothermal titration calorimetry (ITC) measurements probe different aspects of competing host-guest equilibria as simple alkylammonium guest molecules interact with both the exterior (ion-association) and interior (encapsulation) of the [Ga{sub 4}L{sub 6}]{sup 12-} supramolecular assembly in water. Data obtained by each independent technique measure different components of the host-guest equilibria and only when analyzed together does a complete picture of the solution thermodynamics emerge. Striking differences between the internal and external guest binding are found. External binding is enthalpy driven and mainly due to attractive interactions between the guests and the exterior surface of the assembly while encapsulation is entropy driven as a result of desolvation and release of solvent molecules from the host cavity.

Sgarlata, Carmelo; Mugridge, Jeffrey; Pluth, Michael; Tiedemann,, Bryan; Zito, Valeria; Arena, Giuseppe; Raymond, Kenneth N.

2009-07-22T23:59:59.000Z

Note: This page contains sample records for the topic "risk external rs" 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.