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Note: This page contains sample records for the topic "maintaining essential functions" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Status Report, Essential System Functionality - January 2006 | Department  

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

Status Report, Essential System Functionality - January 2006 Status Report, Essential System Functionality - January 2006 Status Report, Essential System Functionality - January 2006 Report on Essential System Functionality In 2004 and 2005, the Office of Independent Oversight, within the Office of Security and Safety Performance Assurance, performed ten evaluations of essential system functionality (ESF). These ESF reviews are highly technical, detailed engineering evaluations of selected essential systems within one or more facilities at each site. This report summarizes the observations and insights from these reviews. Although most essential safety systems that were reviewed were well maintained, tested, and operated, there were significant weaknesses in some aspects of engineering design and analysis that, for some safety systems,

2

Essential Systems Functionality Inspection Criteria, Approach, and Lines of  

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

Essential Systems Functionality Inspection Criteria, Approach, and Essential Systems Functionality Inspection Criteria, Approach, and Lines of Inquiry, October 16, 2008 (HSS CRAD 64-11 Rev. 2) Essential Systems Functionality Inspection Criteria, Approach, and Lines of Inquiry, October 16, 2008 (HSS CRAD 64-11 Rev. 2) The Essential Systems Functionality (ESF) inspection will evaluate the effectiveness of programs and processes for engineering design and safety basis, construction and installation, configuration management, surveillance testing, maintenance, operations, cognizant system engineer (CSE) and safety system oversight (SSO), and feedback and improvement of selected safety systems. This review will evaluate the effectiveness in maintaining the functionality of these safety systems. The ESF review will be performed in the context of integrated safety management (ISM), although

3

Office of Legal Counsel U.S. Department of Justice **1 *290 MAINTAINING ESSENTIAL SERVICES IN THE DISTRICT OF COLUMBIA IN THE EVENT  

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

2 U.S. Op. Off. Legal Counsel 290, 1988 WL 391023 (O.L.C.) 2 U.S. Op. Off. Legal Counsel 290, 1988 WL 391023 (O.L.C.) Office of Legal Counsel U.S. Department of Justice **1 *290 MAINTAINING ESSENTIAL SERVICES IN THE DISTRICT OF COLUMBIA IN THE EVENT APPROPRIATIONS CEASE December 15, 1988 When the District of Columbia is otherwise prohibited by law from spending its appropriation, the District's Mayor is authorized under the Anti-Deficiency Act to expend moneys necessary to maintain government services bearing a reasonable relationship to the safety of human life or the protection of property. Under provisions of the District of Columbia Home Rule Act, the President has authority to employ the District of Columbia Metropolitan Police Force for purposes he deems necessary and appropriate where he has declared the

4

Indonesian drilling maintains steady pace  

SciTech Connect

Offshore drilling activity in Indonesia increased nominally the first quarter of 1985 to an average 29 rigs. Barring any further problems with oil prices and markets, operators are expected to maintain essentially the current general level of appraisal/development work for the rest of this year. There are still a number of prospective regions to be explored in Southeast Asia. Regional developments are described for the South China Sea area, the Java Sea, South Sumatra, Kalimantan, Irian Jaya and the Malacca Strait.

Not Available

1985-05-01T23:59:59.000Z

5

Maintaining plant safety margins  

SciTech Connect

The Final Safety Analysis Report Forms the basis of demonstrating that the plant can operate safely and meet all applicable acceptance criteria. In order to assure that this continues through each operating cycle, the safety analysis is reexamined for each reload core. Operating limits are set for each reload core to assure that safety limits and applicable acceptance criteria are not exceeded for postulated events within the design basis. These operating limits form the basis for plant operation, providing barriers on various measurable parameters. The barriers are refereed to as limiting conditions for operation (LCO). The operating limits, being influenced by many factors, can change significantly from cycle to cycle. In order to be successful in demonstrating safe operation for each reload core (with adequate operating margin), it is necessary to continue to focus on ways to maintain/improve existing safety margins. Existing safety margins are a function of the plant type (boiling water reactor/pressurized water reactor (BWR/PWR)), nuclear system supply (NSSS) vendor, operating license date, core design features, plant design features, licensing history, and analytical methods used in the safety analysis. This paper summarizes the experience at Yankee Atomic Electric Company (YAEC) in its efforts to provide adequate operating margin for the plants that it supports.

Bergeron, P.A.

1989-01-01T23:59:59.000Z

6

Reliability and maintainability program  

SciTech Connect

The program's goals are to accelerate the adoption of active solar energy systems in building applications by improving the reliability and maintainability of installed systems. The project is designed to accomplish this by providing the latest information; by assisting the industry in improving reliability and maintainability; by assisting in design, manufacture, installation and maintenance of reliable and durable systems; and by assisting in the development of codes and standards. Work and accomplishments in these areas are enumerated. (LEW)

Eden, A.

1981-05-01T23:59:59.000Z

7

Sustained activation of STAT5 is essential for chromatin remodeling and maintenance of mammary-specific function  

E-Print Network (OSTI)

specific transcription factors and chromatin modifiers. Molunique STAT5 targets by chromatin immunoprecipitation-basedSTAT5 is essential for chromatin remodeling and maintenance

Xu, Ren

2010-01-01T23:59:59.000Z

8

Maintaining body temperature  

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

Maintaining body temperature Maintaining body temperature Name: Jeff Location: N/A Country: N/A Date: N/A Question: What keeps the human body at a constant temperature of 98.6? Replies: Maintaining body temperature is very complex. It also takes a lot of energy. About 80% of the energy from the food you eat goes to maintaining body temperature. Basically, the chemical reactions of metabolism of stored food, especially fats, generate heat as a by product. This heat warms the body. The brain reads temperature and controls to some extent the rate of this metabolism. There are also many other mechanisms triggered by the brain to keep the core of your body warm, even if the periphery (skin) is cold. Blood vessels to the fingers and toes constrict, so that the cold air doesn't cool the blood too much, so that cooled blood doesn't cool down the heart and brain when it returns. In severe cases, your body will sacrifice a finger or a toe to keep you from dying of cold core temperature (frostbite: it saves your life!). Also the brain can order a lot of muscles to contract rapidly. This generates a lot of heat quickly, a response called shivering. There's much more to this exciting field of research.

9

Maintaining Your Air Conditioner | Department of Energy  

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

Maintaining Your Air Conditioner Maintaining Your Air Conditioner Maintaining Your Air Conditioner June 18, 2013 - 6:20pm Addthis Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. What does this mean for me? Regular maintenance keeps your air conditioner running as efficiently as possible. Maintaining your air conditioner will save you money by extending the unit's life. An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

10

Maintaining Your Air Conditioner | Department of Energy  

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

Maintaining Your Air Conditioner Maintaining Your Air Conditioner Maintaining Your Air Conditioner June 18, 2013 - 6:20pm Addthis Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. What does this mean for me? Regular maintenance keeps your air conditioner running as efficiently as possible. Maintaining your air conditioner will save you money by extending the unit's life. An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

11

Sustained activation of STAT5 is essential for chromatin remodeling and maintenance of mammary-specific function  

Science Conference Proceedings (OSTI)

Epithelial cells, once dissociated and placed in two-dimensional (2D) cultures, rapidly lose tissue-specific functions. We showed previously that in addition to prolactin, signaling by laminin-111 was necessary to restore functional differentiation of mammary epithelia. Here, we elucidate two additional aspects of laminin-111 action. We show that in 2D cultures, the prolactin receptor is basolaterally localized and physically segregated from its apically placed ligand. Detachment of the cells exposes the receptor to ligation by prolactin leading to signal transducers and activators of transcription protein 5 (STAT5) activation, but only transiently and not sufficiently for induction of milk protein expression. We show that laminin-111 reorganizes mammary cells into polarized acini, allowing both the exposure of the prolactin receptor and sustained activation of STAT5. The use of constitutively active STAT5 constructs showed that the latter is necessary and sufficient for chromatin reorganization and {beta}-casein transcription. These results underscore the crucial role of continuous laminin signaling and polarized tissue architecture in maintenance of transcription factor activation, chromatin organization, and tissue-specific gene expression.

Xu, Ren; Nelson, Celeste M.; Muschler, John L.; Veiseh, Mandana; Vonderhaar, Barbara K.; Bissell, Mina J.

2009-06-03T23:59:59.000Z

12

Safety System Obsolescence and Maintainability  

Science Conference Proceedings (OSTI)

The nuclear power industry is currently facing increasing obsolescence issues with original instrumentation and control (I&C) equipment, particularly in safety system applications. These systems, often more than thirty years old, are based on analog technology, relays, and other discrete components, which are becoming difficult to maintain and replace with like equipment. This report helps utilities understand their options and choose the most cost-effective strategies for maintaining and replacing obsol...

2001-05-02T23:59:59.000Z

13

Tank farms essential drawing plan  

SciTech Connect

The purpose of this document is to define criteria for selecting Essential Drawings, Support Drawings, and Controlled Print File (CPF) drawings and documents for facilities that are part of East and West Tank Farms. Also, the drawings and documents that meet the criteria are compiled separate listings. The Essential Drawing list and the Support Drawing list establish a priority for updating technical baseline drawings. The CPF drawings, denoted by an asterisk (*), defined the drawings and documents that Operations is required to maintain per the TWRS Administration Manual. The Routing Boards in Buildings 272-WA and 272-AW are not part of the CPF.

Domnoske-Rauch, L.A.

1998-08-04T23:59:59.000Z

14

Essential Body of Knowledge (EBK) October 2011  

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

Essential Body of Knowledge (EBK) Essential Body of Knowledge (EBK) October 2011 1 U.S. DEPARTMENT OF ENERGY Essential Body of Knowledge (EBK) A Competency and Functional Framework For Cyber Security Workforce Development Office of the Chief Information Officer Office of the Associate CIO for Cyber Security October 2011 DOE Essential Body of Knowledge (EBK) October 2011 2 Table of Contents Executive Summary ...............................................................................................................4 DOE Essential Body of Knowledge (EBK) .........................................................................5 1.1 Data Security ..............................................................................................................6

15

Examining the function of the residue C207 in the cysteine desulfurase reaction of an essential NifS-like protein from  

E-Print Network (OSTI)

NifS-like protein from Synechocystis PCC6803 Anthony Paul Trace, McNair Scholar, Pennsylvania State analysis showed the NifS protein is essential to the production of many metalloenzymes, specifically iron Synechocystis sp. PCC 6803 encodes three NifS-like proteins: Slr0077, Slr0387, and Sll0704. Genetic experiments

Omiecinski, Curtis

16

Characterization equipment essential drawing plan  

SciTech Connect

The purpose of this document is to list the Characterization equipment drawings that are classified as Essential Drawings and Support Drawings. Essential Drawings: Are those drawings identified by the facility staff as necessary to directly support the safe operation of the facility or equipment (HNF 1997a). Support Drawings: Are those drawings identified by facility staff that further describe the design details of structures, systems, or components shown on essential drawings. (HNF 1997a) The Characterization equipment drawings identified in this report are deemed essential drawings as defined in HNF-PRO-242, Engineering Drawing Requirements (HNF 1997a). These drawings will be prepared, revised, and maintained per HNF-PRO-440, Engineering Document Change Control (HNF 1997b). All other Characterization equipment drawings not identified in this document will be considered General drawings until the Characterization Equipment Drawing Evaluation Report (Wilson 1998) is updated during fiscal year 1999. Trucks 1 and 2 drawings are not included in this revision of the essential drawing list due to uncertainty about future use.

WILSON, G.W.

1999-05-14T23:59:59.000Z

17

Installing and Maintaining a Home Solar Electric System | Department of  

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

Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System July 2, 2012 - 8:21pm Addthis When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. How does it work? Making sure your home solar electric or PV system is sized, sited, and installed correctly is essential for maximizing its energy performance. As with any mechanical or electrical appliance, PV systems require routine, periodic maintenance.

18

Installing and Maintaining a Home Solar Electric System | Department of  

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

Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System July 2, 2012 - 8:21pm Addthis When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. How does it work? Making sure your home solar electric or PV system is sized, sited, and installed correctly is essential for maximizing its energy performance. As with any mechanical or electrical appliance, PV systems require routine, periodic maintenance.

19

Essential Body of Knowledge (EBK)  

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

The Office of the Chief Information Officer (OCIO) utilized DOE cyber security policy, industry best practices and lessons learned, and comprehensive internal needs assessments to identify fundamental cyber security functional roles and associated responsibilities. In addition, core competencies were identified that represent the core skill set needed by cyber security professionals to adequately fulfill their functional roles. This collective information was further used to define the Enterprise Essential Body of Knowledge (EBK).

20

Maintaining DOE Technical Standards, TSPP-7  

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

7-2013 7-2013 DOE TECHNICAL STANDARDS September 2013 PROGRAM PROCEDURES MAINTAINING DOE TECHNICAL STANDARDS U.S. Department of Energy Office of Nuclear Safety Washington, D.C. 20585 DOE-TSPP-7-2013 Maintaining September 2013 DOE Technical Standards Program CONTENTS 1. SCOPE ............................................................................................................................................ 1 1.1 Purpose ....................................................................................................................... 1 1.2 Applicability ................................................................................................................. 1 2. DOCUMENT MAINTENANCE ....................................................................................................... 1

Note: This page contains sample records for the topic "maintaining essential functions" 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

Encapsulation method for maintaining biodecontamination activity  

DOE Patents (OSTI)

A method for maintaining the viability and subsequent activity of microorganisms utilized in a variety of environments to promote biodecontamination of surfaces. One application involves the decontamination of concrete surfaces. Encapsulation of microbial influenced degradation (MID) microorganisms has shown that MID activity is effectively maintained under passive conditions, that is, without manual addition of moisture or nutrients, for an extended period of time.

Rogers, Robert D. (Idaho Falls, ID); Hamilton, Melinda A. (Idaho Falls, ID); Nelson, Lee O. (Idaho Falls, ID); Benson, Jennifer (Cockermouth, GB); Green, Martin J. (Wooton, GB); Milner, Timothy N. (Centerville, VA)

2002-01-01T23:59:59.000Z

22

Human Engineering Design Guidelines for Maintainability  

Science Conference Proceedings (OSTI)

Utility managers, designers, and engineers can now systematically incorporate appropriate human factors engineering principles and criteria for maintainability into new plant designs or existing plant modifications. Using these guidelines can also result in increased productivity, safety, and plant availability.

1985-12-01T23:59:59.000Z

23

Reliability and maintainability seminar: summary of proceedings  

DOE Green Energy (OSTI)

The following are described briefly: Overview of the Federal Reliability and Maintainability Program Plan, Summary of Proceedngs, Overview of Southern Solar Energy Center Programs, and Solar Domestic Hot Water Design Guidelines Handbook. Also included are the Seminar Agenda and the list of Seminar Attendees. (MHR)

Beek, C.R.

1981-04-01T23:59:59.000Z

24

Guidelines for Maintaining Steam Turbine Lubrication Systems  

Science Conference Proceedings (OSTI)

Failures of steam turbine bearings and rotors cost the utility industry an estimated $150 million a year. A third of these failures involve contaminated lubricants or malfunctioning lubricant supply system components. This report, outlining a comprehensive surveillance program, presents guidelines for maintaining major elements in the turbine lubrication system.

1986-07-01T23:59:59.000Z

25

Maintaining ideal body weight counseling sessions  

SciTech Connect

The purpose of this program is to provide employees with the motivation, knowledge and skills necessary to maintain ideal body weight throughout life. The target audience for this program, which is conducted in an industrial setting, is the employee 40 years of age or younger who is at or near his/her ideal body weight.

Brammer, S.H.

1980-10-09T23:59:59.000Z

26

DOE Essential Body of Knowledge | Department of Energy  

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

Essential Body of Knowledge Essential Body of Knowledge DOE Essential Body of Knowledge DOE Essential Body of Knowledge & Core Competency Training The Office of the Chief Information Officer (OCIO) utilized DOE cybersecurity policy, best practices and lessons learned, and comprehensive internal needs assessments to identify fundamental cybersecurity functional roles and associated responsibilities to and define the essential body of knowledge (EBK) needed to support cybersecurity responsibilities and activities within the Department. Components of the EBK are assigned to each functional role, and customized curriculum is determined for each key role via core competency worksheets. The OCIO has determined the following roles to be key functional cyber roles within the Department:

27

EnergySmart Schools Tips: Retrofitting, Operating, and Maintaining...  

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

EnergySmart Schools Tips: Retrofitting, Operating, and Maintaining Existing Buildings EnergySmart Schools Tips: Retrofitting, Operating, and Maintaining Existing Buildings An...

28

Maintaining Quality in a Decommissioning Environment  

Science Conference Proceedings (OSTI)

The decommissioning of AECL's Whiteshell Laboratories is Canada's largest nuclear decommissioning project to date. This research laboratory has operated for forty years since it was set up in 1963 in eastern Manitoba as the Whiteshell Nuclear Research Establishment, complete with 60 MW(Th) test reactor, hot cells, particle accelerators, and multiple large-scale research programs. Returning the site to almost complete green state will require several decades of steady work in combination with periods of storage-with-surveillance. In this paper our approach to maintaining quality during the long decommissioning period is explained. In this context, 'quality' includes both regulatory aspects (compliance with required standards) and business aspects (meeting the customers' needs and exceeding their expectations). Both aspects are discussed, including examples and lessons learned. The five years of development and implementation of a quality assurance program for decommissioning the WL site have led to a number of lessons learned. Many of these are also relevant to other decommissioning projects, in Canada and elsewhere: - Early discussions with the regulator can save time and effort later in the process; - An iterative process in developing documentation allows for steady improvements and input throughout the process; - Consistent 2-way communication with staff regarding the benefits of a quality program assists greatly in adoption of the philosophy and procedures; - Top-level management must lead in promoting quality; - Field trials of procedures ('beta testing') ensures they are easy to use as well as useful. Success in decommissioning the Whiteshell Laboratories depends on the successful implementation of a rigorous quality program. This will help to ensure both safety and efficiency of all activities on site, from planning through execution and reporting. The many aspects of maintaining this program will continue to occupy quality practitioners in AECL, reaping steady benefits to AECL and to its customers, the people of Canada.

Attas, Michael [Atomic Energy of Canada Limited, Whiteshell Laboratories, Pinawa, Manitoba, R0E 1L0 (Canada)

2008-01-15T23:59:59.000Z

29

Definition and Means of Maintaining the Criticality Prevention Design Features Portion of the PFP Safety Envelope  

SciTech Connect

The purpose of this document is to record the technical evaluation of the Operational Safety Requirements described in the Plutonium Finishing Plant Final (PFP) Operational Safety Requirements, WHC-SD-CP-OSR-010. Rev. 0-N , Section 3.1.1, ''Criticality Prevention System.'' This document, with its appendices, provides the following: (1) The results of a review of Criticality Safety Analysis Reports (CSAR), later called Criticality Safety Evaluation Reports (CSER), and Criticality Prevention Specifications (CPS) to determine which equipment or components analyzed in the CSER or CPS are considered as one of the two unlikely, independent, and concurrent changes before a criticality accident is possible. (2) Evaluations of equipment or components to determine the safety boundary for the system (Section 4). (3) A list of essential drawings that show the safety system or component (Appendix A). (4) A list of the safety envelope (SE) equipment (Appendix B). (5) Functional requirements for the individual safety envelope equipment (Sections 3 and 4). (6) A list of the operational and surveillance procedures necessary to maintain the system equipment within the safety envelope (Section 5).

RAMBLE, A.L.

2000-07-28T23:59:59.000Z

30

Maintaining secrecy when information leakage is unavoidable  

E-Print Network (OSTI)

(cont.) We apply the framework to get new results, creating (a) encryption schemes with very short keys, and (b) hash functions that leak no information about their input, yet-paradoxically-allow testing if a candidate ...

Smith, Adam (Adam Davidson), 1977-

2004-01-01T23:59:59.000Z

31

Guide to Operating and Maintaining EnergySmart Schools | Department...  

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

Guide to Operating and Maintaining EnergySmart Schools Guide to Operating and Maintaining EnergySmart Schools This guide is a primary resource for developing and implementing a...

32

Y-12 Construction maintains 'superb' safety performance | Y-12...  

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

Construction maintains ... Y-12 Construction maintains 'superb' safety performance Posted: March 6, 2013 - 6:03pm Tom Morris, B&W Y-12 vice president of projects, presents...

33

Onsite Wastewater Treatment Systems: Understanding and Maintaining your Septic System  

E-Print Network (OSTI)

It is important that homeowners maintain their septic systems properly. Otherwise, problems that develop could threaten human health and the environment. In this publication you will learn how to maintain all the components of a septic system. There are checklists to remind you of important steps in maintaining the safety and integrity of your system.

Lesikar, Bruce J.; Mechell, Justin; Alexander, Rachel

2008-10-23T23:59:59.000Z

34

Operating and Maintaining Your Heat Pump | Department of Energy  

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

Operating and Maintaining Your Heat Pump Operating and Maintaining Your Heat Pump Operating and Maintaining Your Heat Pump June 24, 2012 - 3:22pm Addthis Changing filters regularly is an important part of maintaining a heat pump system. | Photo courtesy of ©iStockphoto/BanksPhotos Changing filters regularly is an important part of maintaining a heat pump system. | Photo courtesy of ©iStockphoto/BanksPhotos What does this mean for me? Learn to operate and maintain your heat pump system properly to maximize energy and money savings. You can do many operational and maintenance tasks yourself. Proper operation of your heat pump will save energy. Do not set back the heat pump's thermostat if it causes the backup heating to come on -- backup heating systems are usually more expensive to operate. Continuous indoor

35

Maintaining scale as a realiable computational system for criticality safety analysis  

SciTech Connect

Accurate and reliable computational methods are essential for nuclear criticality safety analyses. The SCALE (Standardized Computer Analyses for Licensing Evaluation) computer code system was originally developed at Oak Ridge National Laboratory (ORNL) to enable users to easily set up and perform criticality safety analyses, as well as shielding, depletion, and heat transfer analyses. Over the fifteen-year life of SCALE, the mainstay of the system has been the criticality safety analysis sequences that have featured the KENO-IV and KENO-V.A Monte Carlo codes and the XSDRNPM one-dimensional discrete-ordinates code. The criticality safety analysis sequences provide automated material and problem-dependent resonance processing for each criticality calculation. This report details configuration management which is essential because SCALE consists of more than 25 computer codes (referred to as modules) that share libraries of commonly used subroutines. Changes to a single subroutine in some cases affect almost every module in SCALE! Controlled access to program source and executables and accurate documentation of modifications are essential to maintaining SCALE as a reliable code system. The modules and subroutine libraries in SCALE are programmed by a staff of approximately ten Code Managers. The SCALE Software Coordinator maintains the SCALE system and is the only person who modifies the production source, executables, and data libraries. All modifications must be authorized by the SCALE Project Leader prior to implementation.

Bowmann, S.M.; Parks, C.V.; Martin, S.K.

1995-04-01T23:59:59.000Z

36

The Primary Standards Laboratory (PSL) maintains a wide variety...  

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

Nuclear Security Administration under contract DE-AC04-94AL85000. The Primary Standards Laboratory (PSL) maintains a wide variety of primary thermometry standards to assure...

37

The Primary Standards Laboratory (PSL) maintains a wide variety...  

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

Nuclear Security Administration under contract DE-AC04-94AL85000. The Primary Standards Laboratory (PSL) maintains a wide variety of primary standards to assure accurate...

38

The Primary Standards Laboratory (PSL) maintains a wide variety...  

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

Nuclear Security Administration under contract DE-AC04-94AL85000. The Primary Standards Laboratory (PSL) maintains a wide variety of primary acceleration and shock...

39

Maintaining History of the ARM Climate Research Facility Data  

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

Maintaining History of the ARM Climate Research Facility Data Koontz, Annette Pacific Northwest National Laboratory Sivaraman, Chitra Pacific Northwest National Laboratory Martin,...

40

Section_201_Establishing_Maintaining_and_Deactivating_Limited...  

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

201 Establishing, Maintaining, and Deactivating Limited Areas and Vault-Type Rooms Description Classified matter must be processed, discussed, handled, or stored in designated...

Note: This page contains sample records for the topic "maintaining essential functions" 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

Heavy Vehicle Essential Power Systems Workshop  

DOE Green Energy (OSTI)

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

42

Heavy Vehicle Essential Power Systems Workshop  

SciTech Connect

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

43

The Importance of Maintaining PU.1 Expression Levels During Hematopoiesis.  

E-Print Network (OSTI)

??The Ets family transcription factor PU.1 (encoded by Sfpi1) is essential for both myeloid and lymphoid development. Previous data has demonstrated that high concentrations of (more)

Houston, Isaac Benjamin

2007-01-01T23:59:59.000Z

44

Supervisory Essentials | Department of Energy  

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

Supervisory Essentials Supervisory Essentials Supervisory Essentials February 24, 2014 8:30AM EST to February 27, 2014 4:30PM EST Registration link: CHRIS 002072/0038 $800.00 Course Type: Classroom Course Location: GTN A-410 Course Description: This course is designed to assist new first-line supervisors in developing the competencies they need to achieve their primary responsibilities, which include accomplishing the goals of their units through the work of their employees and ensuring that the work of their employees is of the highest possible quality. The course can also serve as a refresher for experienced supervisors and managers. This course addresses competencies in the following Executive Core Qualifications: Leading People, Leading Change, Building Coalitions, and Communication. The

45

DOE Functions and Responsibilities  

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

Safety and Security is responsible for developing and maintaining the Department's Directives that address safety management functions, responsibilities and authorities (FRA)....

46

616 Nonradioactive Dangerous Waste Storage Facility -- Essential/support drawing list. Revision 2  

SciTech Connect

This document identifies the essential and supporting engineering drawings for the 616 Nonradioactive Dangerous Waste Storage Facility. The purpose of the documents is to describe the criteria used to identify and the plan for updating and maintaining their accuracy. Drawings are designated as essential if they relate to safety systems, environmental monitoring systems, effluents, and facility HVAC, electrical, and plumbing systems. Support drawings are those which are frequently used or describe a greater level of detail for equipment, components, or systems shown on essential drawings. A listing of drawings identified as essential or support is provided in Table A.

Busching, K.R.

1994-09-29T23:59:59.000Z

47

The Primary Standards Laboratory (PSL) maintains a wide variety...  

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

Nuclear Security Administration under contract DE-AC04-94AL85000. The Primary Standards Laboratory (PSL) maintains a variety of primary mass and force standards to assure...

48

The Primary Standards Laboratory (PSL) maintains a wide variety...  

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

National Nuclear Security Administration under contract DE-AC04-94AL85000 The Primary Standards Laboratory (PSL) maintains a variety of primary optical standards to assure accurate...

49

The Primary Standards Laboratory (PSL) maintains a wide variety...  

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

for the US Department of Energy under contract DE-ACO4-94AL85000. The Primary Standards Laboratory (PSL) and Sandia's Radiation Protection organization maintain a variety...

50

Installing and Maintaining a Small Wind Electric System | Department of  

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

Installing and Maintaining a Small Wind Electric System Installing and Maintaining a Small Wind Electric System Installing and Maintaining a Small Wind Electric System July 2, 2012 - 8:22pm Addthis Installing and Maintaining a Small Wind Electric System What does this mean for me? When installing a wind system, the location of the system, the energy budget for the site, the size of the system, and the height of the tower are important elements to consider. Deciding whether to connect the system to the electric grid or not is also an important decision. If you went through the planning steps to evaluate whether a small wind electric system will work at your location, you will already have a general idea about: The amount of wind at your site The zoning requirements and covenants in your area The economics, payback, and incentives of installing a wind system

51

Weatherization Assistance for Low-Income Persons: Maintaining the Privacy  

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

Weatherization Assistance for Low-Income Persons: Maintaining the Weatherization Assistance for Low-Income Persons: Maintaining the Privacy of Applicants for and Recipients of Services Weatherization Assistance for Low-Income Persons: Maintaining the Privacy of Applicants for and Recipients of Services Amending regulations to require all States and other service providers that participate in the Weatherization Assistance Program (WAP) to treat all requests for information concerning applicants and recipients of WAP funds in a manner consistent with the Federal government's treatment of information requested under the Freedom of Information Act (FOIA), 5 U.S.C. 552, including the privacy protections contained in Exemption (b)(6) of the FOIA, 5 U.S.C. 552(b)(6). Weatherization Assistance for Low-Income Persons: Maintaining the Privacy

52

Guide to Operating and Maintaining EnergySmart Schools  

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

Operating Operating and Maintaining EnergySmart Schools ACKNOWLEDGMENTS The U.S. Department of Energy would like to thank the Council of Educational Facility Planners International (CEFPI) for assisting in the development of this guide as a participating sponsor. DOE also acknowledges the invaluable contributions of the working group members and case study subjects listed on the inside back cover. This constructive and informative document would not have been possible without their active engagement. Guide to Operating and Maintaining EnergySmart Schools Table of Contents Executive Summary & Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Chapter 1. Identifying Energy Savings and Getting Started. . . . . . . . . . . . . . . . .

53

Method and apparatus for maintaining equilibrium in a helical axis stellarator  

DOE Patents (OSTI)

Apparatus for maintaining three-dimensional MHD equilibrium in a plasma contained in a helical axis stellerator includes a resonant coil system, having a configuration such that current therethrough generates a magnetic field cancelling the resonant magnetic field produced by currents driven by the plasma pressure on any given flux surface resonating with the rotational transform of another flux surface in the plasma. Current through the resonant coil system is adjusted as a function of plasma beta.

Reiman, Allan (Princeton, NJ); Boozer, Allen (Rocky Hill, NJ)

1987-01-01T23:59:59.000Z

54

Method and apparatus for maintaining equilibrium in a helical axis stellarator  

DOE Patents (OSTI)

Apparatus for maintaining three-dimensional MHD equilibrium in a plasma contained in a helical axis stellarator includes a resonant coil system, having a configuration such that current therethrough generates a magnetic field cancelling the resonant magnetic field produced by currents driven by the plasma pressure on any given flux surface resonating with the rotational transform of another flux surface in the plasma. Current through the resonant coil system is adjusted as a function of plasma beta.

Reiman, A.; Boozer, A.

1984-10-31T23:59:59.000Z

55

Multifunctional robot to maintain boiler water-cooling tubes  

Science Conference Proceedings (OSTI)

A robot has been developed to maintain boiler water-cooling tubes. This robot has a double tracked moving mechanism, an ash cleaning device, a slag purging device, a tubes' thickness measurement device, a marking device, and a control system. This robot ... Keywords: Boiler maintenance, Boiler water-cooling tube, Climbing robot, Mobile robot

Xueshan Gao; Dianguo Xu; Yan Wang; Huanhuan Pan; Weimin Shen

2009-10-01T23:59:59.000Z

56

Identifying Transformer Incipient Events for Maintaining Distribution System Reliability  

E-Print Network (OSTI)

Identifying Transformer Incipient Events for Maintaining Distribution System Reliability Karen L events in single-phase distribution transformers. This analysis will aid in the development of an automatic detection method for internal incipient faults in the transformers. The detection method can

57

Soup to nuts: affordable tools for building and maintaining labs  

Science Conference Proceedings (OSTI)

Limited IT funds are a fact of life at most institutions. You may be surprised by how much you can do with what you have though. Using new products in conjunction with tried and true existing technologies you can take steps to maintain both your bottom ... Keywords: classroom technology, computer classrooms, computer labs, deployment, imaging, management, printing, security

Jason Wagner

2004-10-01T23:59:59.000Z

58

Establishing and maintaining long-term human-computer relationships  

Science Conference Proceedings (OSTI)

This research investigates the meaning of human-computer relationship and presents techniques for constructing, maintaining, and evaluating such relationships, based on research in social psychology, sociolinguistics, communication and ... Keywords: Human-computer interaction, embodied conversational agent, relational agent, social interface

Timothy W. Bickmore; Rosalind W. Picard

2005-06-01T23:59:59.000Z

59

A Weighted Freshness Metric for Maintaining Search Engine Local Repository  

Science Conference Proceedings (OSTI)

Current search engines maintain a local repository to improve the search efficiency. A crawler is used to periodically poll the remote web pages to update the contents of the local repository. Due to the resource limitations, some local pages may be ...

Jianchao Han; Nick Cercone; Xiaohua Hu

2004-09-01T23:59:59.000Z

60

Compact, maintainable 80-KeV neutral beam module  

DOE Patents (OSTI)

A compact, maintainable 80-keV arc chamber, extractor module for a neutral beam system immersed in a vacuum of <10.sup.-2 Torr, incorporating a nested 60-keV gradient shield located midway between the high voltage ion source and surrounding grounded frame. The shield reduces breakdown or arcing path length without increasing the voltage gradient, tends to keep electric fields normal to conducting surfaces rather than skewed and reduces the peak electric field around irregularities on the 80-keV electrodes. The arc chamber or ion source is mounted separately from the extractor or ion accelerator to reduce misalignment of the accelerator and to permit separate maintenance to be performed on these systems. The separate mounting of the ion source provides for maintaining same without removing the ion accelerator.

Fink, Joel H. (Livermore, CA); Molvik, Arthur W. (Livermore, CA)

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Assessing the maintainability benefits of design restructuring using dependency analysis  

E-Print Network (OSTI)

Software developers and project managers often have to assess the quality of software design. A commonly adopted hypothesis is that a good design should cost less to maintain than a poor design. In this paper, we propose a model for quantifying the quality of a design from a maintainability perspective. Based on this model, we propose a novel strategy for predicting the Return on Investment (ROI) for possible design restructurings using procedure-level dependency analysis. We demonstrate this approach with two exploratory Java case studies. Our results show that common low-level source code transformations change the system dependency structure in a beneficial way, allowing recovery of the initial refactoring investment over a number of maintenance activities. 1.

Robert Leitch; Eleni Stroulia

2003-01-01T23:59:59.000Z

62

Maintaining Lube Oil System Cleanliness in Motor Bearing Applications  

Science Conference Proceedings (OSTI)

Lube oil analysis plays a significant role in assessing contamination levels and managing the condition of the lubricant and machine components. By establishing target levels for lubricant properties, contamination, and machine wear -- and measuring actual equipment performance against these limits -- utilities can quickly identify and resolve abnormal conditions before internal component damage occurs. This report outlines proactive techniques for maintaining lube oil system cleanliness and reducing int...

2001-11-16T23:59:59.000Z

63

Oscillatory nonhmic current drive for maintaining a plasma current  

DOE Patents (OSTI)

Apparatus and method of the invention maintain a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

Fisch, Nathaniel J. (Princeton, NJ)

1986-01-01T23:59:59.000Z

64

Reliability, Availability and Maintainability Considerations for Gas Turbine Cogeneration Systems  

E-Print Network (OSTI)

The success of a cogeneration system depends upon the system being available, i.e. operating and meeting its demands under expected environmental conditions. A high availability in turn, depends on both Reliability (indicating how often the system fails), and Maintainability (indicating how fast it can be returned to a satisfactory operating state). A low availability will adversely effect important economic criteria for the project such as Discounted Cash Flow and Payback. This paper provides a structure by which these important parameters can be addressed at the design evaluation stage. The paper discusses reliability methods and practical aspects such as installation and operation considerations, including air filtration, fuel conditioning and compressor washing.

Meher-Homji, C. B.; Focke, A. B.

1984-01-01T23:59:59.000Z

65

Oscillatory nonohomic current drive for maintaining a plasma current  

DOE Patents (OSTI)

Apparatus and methods are described for maintaining a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

Fisch, N.J.

1984-01-01T23:59:59.000Z

66

Notices ROUTINE USES OF RECORDS MAINTAINED IN THE SYSTEM, INCLUDING  

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

83 Federal Register 83 Federal Register / Vol. 78, No. 51 / Friday, March 15, 2013 / Notices ROUTINE USES OF RECORDS MAINTAINED IN THE SYSTEM, INCLUDING CATEGORIES OF USERS AND THE PURPOSES OF SUCH USES: The Department may disclose information contained in a record in this system of records under the routine uses listed in this system of records without the consent of the individual if the disclosure is compatible with the purposes for which the record was collected. These disclosures may be made on a case-by-case basis or, if the Department has complied with the computer matching requirements of the Privacy Act of 1974, as amended (Privacy Act), under a computer matching agreement. Any disclosure of individually identifiable information from a record in this system must also comply with the requirements of section

67

Remote Sensing and Control for Establishing and Maintaining Digital Irrigation  

E-Print Network (OSTI)

The remotely sensed data from an unknown location is transmitted in real time through internet and gathered in a PC. The data is collected for a considerable period of time and analyzed in PC as to assess the suitability and fertility of the land for establishing an electronic plantation in that area. The analysis also helps deciding the plantation of appropriate plants in the location identified. The system performing this task with appropriate transducers installed in remote area, the methodologies involved in transmission and data gathering are reported.. The second part of the project deals with data gathering from remote site and issuing control signals to remote appliances in the site; all performed through internet. Therefore, this control scheme is a duplex system monitoring the irrigation activities by collecting data in one direction and issuing commands on the opposite direction. This scheme maintains the digital irrigation systems effectively and efficiently as to utilize the resources optimally f...

cellatoglu, Akin

2012-01-01T23:59:59.000Z

68

Reliability and Maintainability Issues for the Next Linear Collider  

Science Conference Proceedings (OSTI)

Large accelerators for high energy physics research traditionally have been designed using informal best design, engineering, and management practices to achieve acceptable levels of operational availability. However, the Next Linear Collider(NLC) project presents a particular challenge for operational availability due to the unprecedented size and complexity of the accelerator systems required to achieve the physics goals of high center-of-mass energy and high luminosity. Formal reliability and maintainability analysis, design, and implementation will be required to achieve acceptable operational availability for the high energy physics research program. This paper introduces some of the basic concepts of reliability analysis and applies them to the 2.6-cm microwave power system of the two 10-km-long, 250-GeV linacs that are currently proposed for the NLC design.

Wilson, Zane J.; Gold, Saul L.; Koontz, Ron F.; Lavine, Ted L.; /SLAC

2011-08-26T23:59:59.000Z

69

Energy Education & Workforce Development: Energy Literacy: Essential...  

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

Literacy: Essential Principles and Fundamental Concepts for Energy Education A thumbnail image of the cover of the Energy Literacy booklet. Download the guide: High Resolution Low...

70

Functional Substitution Methods in Optimization for Bayesian Tomography  

E-Print Network (OSTI)

1 Bayesian tomographic reconstruction algorithms generally require the efficient optimization of a functional of many variables. In this setting as well as many other optimization tasks, functional substitution (FS) has been widely applied to simplify each step of the iterative process. The function to be minimized is replaced locally by an approximation having a more easily manipulated form, e.g. quadratic, but which maintains sufficient similarity to descend the true functional while computing only the substitute. In this paper, we provide two new applications of FS methods in iterative coordinate descent for Bayesian tomography. The first is a modification of our recently proposed coordinate descent algorithm with 1-D Newton-Raphson approximations to an alternative quadratic which allows convergence to be proven easily. In simulations we find essentially no difference in convergence speed between the two techniques. We also present a new algorithm which exploits the FS method to all...

Jun Zheng; Suhail Saquib; Ken Sauer; Charles Bouman

1997-01-01T23:59:59.000Z

71

Many families of Caenorhabditis elegans microRNAs are not essential for development or viability  

E-Print Network (OSTI)

MicroRNAs (miRNAs) are approximately 23 nt regulatory RNAs that posttranscriptionally inhibit the functions of protein-coding mRNAs. We previously found that most C. elegans miRNAs are individually not essential for ...

Alvarez-Saavedra, Ezequiel

72

The Need for Essential Consumer Protections  

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

Need for Essential Consumer Protections Need for Essential Consumer Protections THE NEED FOR ESSENTIAL CONSUMER PROTECTIONS SMART METERING PROPOSALS AND THE MOVE TO TIME-BASED PRICING August 2010 NCLC NATIONAL CONSUMER L AW C E N T E R ® ® The Need for Essential Consumer Protections Copyright © 2010 AARP, National Consumer Law Center, National Association of State Utility Consumer Advocates, Consumers Union, and Public Citizen. Reprinting with permission. ACkNOwLEDGMENTS The consumer organizations acknowledge the assistance of Barbara R. Alexander, Consumer Affairs Consultant, in the preparation of this paper. 1 There is widespread consensus that the U.S. distribution and transmission systems for vital electricity service need to be modernized and upgraded. This modernization has been recently promoted under the rubric of the

73

The Role of Filtration in Maintaining Clean Heat Exchanger Coils  

SciTech Connect

The main purpose of the study was to investigate the role of filtration in maintaining clean heat exchanger coils and overall performance. Combinations of 6 different levels of filtration (MERV 14, 11, 8, 6, 4, and no filter) and 4 different coils (an eight-row lanced-fin coil, HX8L), (an eight-row wavy-fin coil, HX8W), (a four-row lanced-fin coil, HX4L) and (a two-row lanced-fin coil, HX2L) were tested at 4 different air velocities (1.52, 2.03, 2.54,3.05 m/s (300, 400, 500, 600 ft/min)). The fouled conditions were obtained after injection of 600 grams of ASHRAE standard dust upstream of the filter/coil combination. This magnitude of dust is representative of a year of normal operation for an air conditioning system. The air-side pressure drops of the coils and filters and air-side heat transfer coefficients of the coils were determined from the measurements under the clean and fouled conditions. Depending upon the filter and coil test, the coil pressure drops increased in the range of 6%-30% for an air velocity at 2.54 m/s (500 ft/min). The impact was significantly greater for tests performed without a filter. The largest relative effect of fouling on pressure drop occurs for coils with fewer rows and having lanced fins. Coils with a greater number of rows can hold more dust so that a fixed amount of dust has a relatively smaller impact. The impact of fouling on air-side heat transfer coefficients was found to be relatively small. In some cases, heat transfer was actually enhanced due to additional turbulence caused by the presence of dust. The experimental results for pressure drops and heat transfer coefficients were correlated and the correlations were implemented within computer models of prototypical rooftop air conditioners and used to evaluate the impact of fouling on cooling capacity and EER. The equipment cooling capacity is reduced with fouling primarily because of a decrease in air flow due to the increase pressure drop rather than due to changes in h eat transfer coefficient. In most cases, the EER was reduced with fouling primarily due to increased fan power. However, the changes in EER were relatively small, in the range of 1%-9% (10%). For most cases, equipment having low efficiency filters had higher EER after fouling than equipment with high efficiency filters, because the high efficiency filter caused significantly higher pressure drops than the low efficiency filters. The extra filter pressure drop outweighed the reduced coil pressure drop after fouling. The impact of fan efficiency curves was also investigated in the study. The energy penalty associated with high efficiency filters was reduced considerably with higher efficiency fans. There is an energy penalty associated with the use of high efficiency filtration. However, the primary reason for selecting high efficiency filters for a particular application would be improved air quality. For HX8L, the quantity of dust passing through the coil with a MERV4 filter was approximately 30 times the dust passing the coil with a MERV14 filter. Without an upstream filter, the quantity of dust passing through the coil was approximately 60 times the value for a MERV14 filter.

Li Yang; James E. Braun; Eckhard A. Groll

2004-06-30T23:59:59.000Z

74

INHIBITORY EFFECT OF ESSENTIAL OILS ON EXTRACELLULAR  

E-Print Network (OSTI)

Pityriasis capitis is a common scalp disorder caused by a fungus Malassezia globosa. The mechanism of Pityriasis capitis includes Malassezia-induced fatty acid metabolism, particularly lipase-mediated breakdown of sebaceous lipids and release of irritating free fatty acids. We report that extracellular lipase activity was detected in Malassezia globosa. The presence of lipase enzyme was performed in specific media on Petri dishes for formation of a zone.In this article, the effect of Cymbopogon citratus and Zingiber officinale essential oils on the extracellular lipase activity of Malassezia globosa had been studied by titrametric method. At the end of titration 4 mol fatty acid/ml of reaction mixture was released in the presence of Cymbopogon citratus oil and 7mol of fatty acid/ml of reaction mixture was liberated in the presence of Zingiber officinale oil. It was found that both essential oils strongly inhibit the lipase activity of M. globosa at a lower concentration.

Shubhangi Mugal; Ranjana Verma; Renu Mishra; Shikha Mandloi

2013-01-01T23:59:59.000Z

75

O&M First! Maintaining Effective and Efficient Lighting Can Help...  

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

Fact Sheet Maintaining Effective and Efficient Lighting Can Help Save Energy and Reduce Costs Over 20 percent of the nation's electricity is consumed by various lighting products...

76

Integration Defended: Berkeley Unifieds Strategy to Maintain School Diversity  

E-Print Network (OSTI)

to Maintain School Diversity Lisa Chavez Erica Frankenberg RSchools that Use Student Diversity to Enhance Learning ofthe Promise of Racial Diversity in American Schools, eds.

Chavez, Lisa; Frankenberg, Erica

2009-01-01T23:59:59.000Z

77

Interaction of LEAFY, AGAMOUS, and TERMINAL FLOWER1 in maintaining floral identity in Arabidopsis  

SciTech Connect

OAK-B135 The Arabidopsis transcription factor LEAFY (LFY) acts upstream of homeotic genes such as AGAMOUS (AG) to confer floral identity on meristems that arise after the transition to reproductive development. Compared to the genetic circuitry regulating the establishment of floral meristem identity, little is known about its maintenance. Previous experiments with fly heterozygous plants and ag mutants grown in conditions that reduce the floral inductive stimulus have shown that both genes are required to prevent reversion of floral to inflorescence meristems. Here, we present evidence that LFY maintains floral meristem identity independently of AG, and that the primary role of LFY is either direct repression of shoot identity genes or repression of an intermediate factor that activates shoot identity genes. The latter conclusions were deduced from the phenotypes conferred by a gain-of-function transgene, LFY:VP16, that appears to act as a dominant negative, or antimorphic, allele during maintenance of floral meristem identity. These observations contrast with previous findings that LFY acts as a direct activator of floral homeotic genes, supporting the hypothesis that the transcriptional activity of LFY is dependent on specific co-regulators.

Parcy, F., Bomblies, K., and Weigel, D.

2002-02-22T23:59:59.000Z

78

Solid-State Lighting: Text-Alternative Version: LED Essentials -  

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

Essentials - Technology, Applications, Advantages, Disadvantages to someone Essentials - Technology, Applications, Advantages, Disadvantages to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Google Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Delicious Rank Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Digg

79

Observe-mine-adopt (OMA): an agile way to enhance software maintainability  

Science Conference Proceedings (OSTI)

We introduce the observe-mine-adopt (OMA) paradigm that assists organizations in making improvements to their software development processes without committing to and undertaking large-scale sweeping organizational process improvement. Specifically, ... Keywords: agile methods, experimental study, maintainability measurement, process improvement, software maintainability, software maintenance

Jane Huffman Hayes; Naresh Mohamed; Tina Hong Gao

2003-09-01T23:59:59.000Z

80

What Steps Do You Take to Maintain Your Furnace? | Department of Energy  

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

Steps Do You Take to Maintain Your Furnace? Steps Do You Take to Maintain Your Furnace? What Steps Do You Take to Maintain Your Furnace? January 7, 2010 - 7:30am Addthis This week, Chris told you about his plans to maintain his furnace to keep it running efficiently. Proper maintenance is key to ensuring your heating and cooling systems are in working order. No one wants to wake up on the coldest day of the year to find that they have no heat! What steps do you take to maintain your furnace? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. E-mail your responses to the Energy Saver team at consumer.webmaster@nrel.gov. Addthis Related Articles Brrrrr. It's Cold In There! Saving Energy and Money Starts at Home 31,000 Homes Weatherized in June

Note: This page contains sample records for the topic "maintaining essential functions" 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

PHMC Year 2000: Status reporting for mission essential Year 2000 projects. Revision 0, Volume 3  

SciTech Connect

The PHMC Year 2000 status reporting process is designed to encompass the reporting requirements of the Office of Management and Budget (OMB), DOE HQ, RL and the PHMC for mission essential Year 2000 projects. Status reporting is required for all Year 2000 projects. The Year 2000 project list will be maintained current as Year 2000 projects are modified, added or deleted. Reporting is required until a Year 2000 project has completed compliance assurance. Some projects will be identified as DOE HQ reportable. These are projects determined to be the most critical and due the attention of DOE HQ.

Layfield, K.A.

1998-09-02T23:59:59.000Z

82

Essential Innovations Technology Corp | Open Energy Information  

Open Energy Info (EERE)

Technology Corp Technology Corp Jump to: navigation, search Name Essential Innovations Technology Corp Place Bellingham,, Washington State Zip 98225 Sector Geothermal energy, Services Product String representation "Manufactures an ... r applications." is too long. Coordinates 48.75235°, -122.471219° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.75235,"lon":-122.471219,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

83

Top U.S. Energy Leaders to Discuss How to Maintain Our Lead in Energy  

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

Top U.S. Energy Leaders to Discuss How to Maintain Our Lead in Top U.S. Energy Leaders to Discuss How to Maintain Our Lead in Energy Innovation Top U.S. Energy Leaders to Discuss How to Maintain Our Lead in Energy Innovation September 18, 2013 - 3:45pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - The United States has been jockeying for leadership in the global clean energy race, with our greatest strengths derived from American innovation and entrepreneurship. This briefing will explore ways the United States can maintain a competitive lead in advanced energy technologies and enhance our economic, energy independence, and national security interests. Speakers will present examples of how strategic partnerships between the Federal government and private sector are spurring the development of the next generation of energy technologies and advanced manufacturing. Deputy

84

Risk Assessment Form (This is an active document and must be maintained)  

E-Print Network (OSTI)

Risk Assessment Form (This is an active document and must be maintained) Materials Science and section will then be removed, the cutting blade demounted and the cutting bowl cleaned. SECTION 1

Cambridge, University of

85

Improved File Synchronization Techniques for Maintaining Large Replicated Collections over Slow Networks  

Science Conference Proceedings (OSTI)

We study the problem of maintaining large replicated collectionsof files or documents in a distributed environment withlimited bandwidth. This problem arises in a number of importantapplications, such as synchronization of data betweenaccounts or devices, ...

Torsten Suel; Patrick Noel; Dimitre Trendafilov

2004-03-01T23:59:59.000Z

86

Policy Flash 2013-40 Acquisition Guide Chapter 43.3 - Maintaining  

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

0 Acquisition Guide Chapter 43.3 - Maintaining 0 Acquisition Guide Chapter 43.3 - Maintaining Alignment of Project Management with Contract Management of Non-Management and Operating (M&O) Cost Reimburstment Contracts Policy Flash 2013-40 Acquisition Guide Chapter 43.3 - Maintaining Alignment of Project Management with Contract Management of Non-Management and Operating (M&O) Cost Reimburstment Contracts Attached is Policy Flash 2013-40 Acquisition Guide Chapter 43.3 - Maintaining Alignment of Project Management with Contract Management of Non-Management and Operating (M&O) Cost Reimbursement Contracts for Capital Asset Projects, Environmental Remediation, Decontamination and Decommissioning, Facility Operations, and Other Major Projects Questions concerning this policy flash should be directed to Barbara Binney

87

Essential proteins discovery from weighted protein interaction networks  

Science Conference Proceedings (OSTI)

Identifying essential proteins is important for understanding the minimal requirements for cellular survival and development. Fast growth in the amount of available protein-protein interactions has produced unprecedented opportunities for detecting protein ... Keywords: centrality, essential protein, protein interaction network

Min Li; Jianxin Wang; Huan Wang; Yi Pan

2010-05-01T23:59:59.000Z

88

Interim Stabilization Equipment Essential and Support Drawing Plan  

Science Conference Proceedings (OSTI)

This supporting document provides a list of the Essential and Support drawings for the Interim Stabilization project equipment.

KOCH, M.R.

2000-01-14T23:59:59.000Z

89

Interim Stabilization Equipment Essential and Support Drawing Plan  

SciTech Connect

This supporting document provides a list of the Essential and Support drawings for the Interim Stabilization project equipment.

KOCH, M.R.

2000-01-28T23:59:59.000Z

90

Evolution of plant-specific Snf2 proteins and RNA polymerases and their function in maintaining paramutations in Zea mays  

E-Print Network (OSTI)

E value = 7.4e-30) and a Helicase_C domain from amino acidsare part of the SF2 helicase superfamily, but instead ofDNA duplex. The seven helicase motifs found in all helicase-

Stonaker, Jennifer Lynn

2010-01-01T23:59:59.000Z

91

Evolution of plant-specific Snf2 proteins and RNA polymerases and their function in maintaining paramutations in Zea mays  

E-Print Network (OSTI)

LSPLCVSQVKK------------SNG-----LPPLCVAEVKK------------SNG-----PDALSPLAIDGRKSSL-SNG- --Q-GKPTIDKCIIVCPSSLVNNWANEIVKWL-

Stonaker, Jennifer Lynn

2010-01-01T23:59:59.000Z

92

Synthesis of VACNFs on Aluminum Foil and Their Transfer to PDMS while Maintaining Alignment and Impalefection Functionality  

SciTech Connect

Vertically aligned carbon nanofibers (VACNFs) are synthesized on 3003 aluminum substrates by direct current plasma enhanced chemical vapor deposition. Chemically synthesized nickel nanoparticles were used as the catalyst for growth. The silicon containing coating (SiNx) typically produced when VACNFs are grown on silicon was produced by adding silicon microparticles prior to growth. The fiber array was transferred to PDMS by spin casting a layer on the grown substrates, curing the PDMS, and etching away the aluminum in KOH. Energy dispersive x-ray spectroscopy, scanning electron microscopy, and fluorescence microscopy data are provided. The free standing array in PDMS was then loaded with pVENUS-C1 plasmid and human brain microcapillary endothelial cells (HCMECHBMEC)/d3 cells were successfully impalefected with the plasmid.

Railsback, Justin [North Carolina State University; Pearce, Ryan [North Carolina State University; Sarac, Mehmet [North Carolina State University; ANDERSON, BRYAN [North Carolina State University; McKnight, Timothy E [ORNL; Tracy, Joseph B [North Carolina State University; Melechko, Anatoli [North Carolina State University

2013-01-01T23:59:59.000Z

93

Probable essential thrombocythemia in a dog  

SciTech Connect

Essential thrombocythemia (ET), in an 11-year-old dog was characterized by persistently high platelet counts range, 4.19 X 10(6)/microliters to 4.95 X 10(6)/microliters, abnormal platelet morphology, marked megakaryocytic hyperplasia in the bone marrow, absence of circulating megakaryoblasts, and history of splenomegaly and gastrointestinal bleeding. Increased numbers of megakaryocytes and megakaryoblasts (15% to 20%) in the bone marrow were confirmed by a positive acetylcholinesterase reaction. Another significant finding was the presence of a basophilia in blood (4,836/microliters) and bone marrow. The marked persistent thrombocytosis, absence of reactive (secondary) thrombocytosis, abnormal platelet morphology, and quantitative and qualitative changes in the megakaryocytic series in the bone marrow suggested the presence of a myeloproliferative disease. Cytochemical and ultrastructural findings aided in the diagnosis of ET. The dog was treated with radiophosphorus. The results was a rapid decline in the numbers of megakaryoblasts and megakaryocytes in the bone marrow and platelets and basophils in the peripheral blood. The dog died unexpectedly of acute necrotizing pancreatitis and diabetes mellitus before a complete remission was achieved.

Hopper, P.E.; Mandell, C.P.; Turrel, J.M.; Jain, N.C.; Tablin, F.; Zinkl, J.G.

1989-04-01T23:59:59.000Z

94

Improving Building Comfort and Energy Savings of the McKenzie Airport Terminal by Maintaining and Improving Pneumatic Control Systems  

E-Print Network (OSTI)

McKenzie Airport Terminal is located at Easterwood Airport, which is owned and operated by Texas A&M University. It was built in 1988. Most all HVAC equipment, which includes boiler, chiller, pumps, AHUs and exhaust fans, due to lack of maintenance, had some form of deteriorated controls, components, and operational function. For example, most of pneumatic controls were failed due to bad components, wrong settings, and disconnection before the Continuous CommissioningR (CCSM). This caused humid and hot problems of the building, and wasted energy. After maintaining and improving the pneumatic controls, the boiler and hot water pump is now turned off when outside air temperature is higher than 80F. The chiller is now shut off when the outside air temperature is below 55 F, and the economizers activate to maintain discharge air temperature when the outside air temperature is below 60 F. The building comfort in temperature and relative humidity (RH) is improved after CCSM. For example, average space temperature of the building was above 75 F most of the time before CCSM and is now 73 F after CCSM. The relative humidity in the baggage claim area was 70% before CCSM and is now 55% after CCSM. The annual savings of electricity for chiller and natural gas for boiler are $5,040 and $12,090 respectively. The total annual energy savings are $17,130.

Liu, C.; Bruner, H. L.; Deng, S.; Brundidge, T.; Turner, W. D.; Claridge, D. E.

2004-01-01T23:59:59.000Z

95

Microsoft Word - APRIL 2009 PMCDP Module CHRIS ESS Tutorial_MAINTAIN_PROJECT_HISTORY.doc  

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

MAINTIN PROJECT HISTORY MAINTIN PROJECT HISTORY REV: APRIL 2009 1 1. To update your project history, click on the "PMCDP Menu" and choose "Maintain project history." Maintain Project History ESS Tutorial, Project Management Career Development Program MAINTIN PROJECT HISTORY REV: APRIL 2009 2 2. A screen with the header "PMCDP Profile for [Your Name]" will appear titled "Step 3: Maintain project history." Options: Delete: This will delete all information for the selected project as currently showing in the table. Update: This will bring you back to the original input screen for project information. View Description: This will bring up a text box that will allow you to see the description previously entered. Sort: Project history information is presented in date-order, with the most recent position

96

Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner  

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

Save Money and Stay Cool with an Efficient, Well-Maintained Air Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner June 29, 2010 - 7:30am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy OK. It's officially summer here in Washington, D.C. I'm seeking the coolest, shadiest places possible as I get ready for the hottest few months of the year. It's already been a hot June in much of the country, and it may end up being one of the hottest Junes on record in DC. Naturally, I'm starting to think about how I'm going to stay cool this summer, while trying to minimize my energy use. Drew provided some excellent tips on summertime energy savings in his blog post two weeks ago,

97

Recommendations to the NRC on human engineering guidelines for nuclear power plant maintainability  

SciTech Connect

This document contains human engineering guidelines which can enhance the maintainability of nuclear power plants. The guidelines have been derived from general human engineering design principles, criteria, and data. The guidelines may be applied to existing plants as well as to plants under construction. They apply to nuclear power plant systems, equipment and facilities, as well as to maintenance tools and equipment. The guidelines are grouped into seven categories: accessibility and workspace, physical environment, loads and forces, maintenance facilities, maintenance tools and equipment, operating equipment design, and information needs. Each chapter of the document details specific maintainability problems encountered at nuclear power plants, the safety impact of these problems, and the specific maintainability design guidelines whose application can serve to avoid these problems in new or existing plants.

Badalamente, R.V.; Fecht, B.A.; Blahnik, D.E.; Eklund, J.D.; Hartley, C.S.

1986-03-01T23:59:59.000Z

98

Maintaining nuclear stability in times of transition focus of talk at  

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

January » January » Bradbury Science Museum talk Maintaining nuclear stability in times of transition focus of talk at Bradbury Science Museum Houston "Terry" Hawkins talks about the role that the nation's nuclear weapons stockpile plays in maintaining the nation's defense - and that of our allies. January 9, 2014 Bradbury Science Museum Bradbury Science Museum Contact Steve Sandoval Communications Office (505) 665-9206 Email "President Obama has reaffirmed that as long as nuclear weapons exist the U.S. will maintain a safe, secure and effective arsenal that guarantees the defense of our country, our allies and partners," said Hawkins. First in series of evening lectures open to public LOS ALAMOS, N.M., Jan. 9, 2014-Los Alamos National Laboratory Senior

99

Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner  

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

Save Money and Stay Cool with an Efficient, Well-Maintained Air Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner Save Money and Stay Cool with an Efficient, Well-Maintained Air Conditioner June 29, 2010 - 7:30am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy OK. It's officially summer here in Washington, D.C. I'm seeking the coolest, shadiest places possible as I get ready for the hottest few months of the year. It's already been a hot June in much of the country, and it may end up being one of the hottest Junes on record in DC. Naturally, I'm starting to think about how I'm going to stay cool this summer, while trying to minimize my energy use. Drew provided some excellent tips on summertime energy savings in his blog post two weeks ago,

100

Liquid Waste Processing Facilities (LWPF) Reliability and Availability and Maintainability (RAM) Analysis  

SciTech Connect

A reliability, availability, and maintainability (RAM) analysis was prepared for the liquid effluents support being provided to the River Protection Project Waste Treatment Plant (WTP). The availability of liquid effluents services to the WTP was determined. Recommendations are provided on improvements and upgrades to increase the availability of the Liquid Waste Processing Facilities treatment and disposal systems.

LOWE, S.S.

2001-02-20T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures  

DOE Patents (OSTI)

In a lighting fixture including a lamp and a housing, an improvement is disclosed for maintaining a lamp envelope area at a cooler, reduced temperature relative to the enclosed housing ambient. The improvement comprises a thermal element in thermal communication with the housing extending to and springably urging thermal communication with a predetermined area of the lamp envelope surface.

Siminovitch, Michael J. (Richmond, CA)

1992-01-01T23:59:59.000Z

102

Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures  

DOE Patents (OSTI)

In a lighting fixture including a lamp and a housing, an improvement is disclosed for maintaining a lamp envelope area at a cooler, reduced temperature relative to the enclosed housing ambient. The improvement comprises a thermal element in thermal communication with the housing extending to and springably urging thermal communication with a predetermined area of the lamp envelope surface. 12 figs.

Siminovitch, M.J.

1992-11-10T23:59:59.000Z

103

Milk fat globules are individually sur-rounded by a membrane which maintains  

E-Print Network (OSTI)

and renders them compatible with the aqueous environment [7]. Milk fat globules membranes (MFGM) compositionMilk fat globules are individually sur- rounded by a membrane which maintains their integrity, including the main specific butyrophilin, would be 1. INTRODUCTION In milk, fat is predominantly present

Recanati, Catherine

104

Guidance and Recommended Procedures for Maintaining and Using RACKLIFE Version 1.10 Models  

Science Conference Proceedings (OSTI)

RACKLIFE is a spent fuel rack management tool that can be applied to extend the useful service life of racks utilizing Boraflex as the neutron absorber material for nuclear criticality control. This document provides procedures and guidance for maintaining and using RACKLIFE models.

2002-04-23T23:59:59.000Z

105

Non-equilibrium structures: How can they be maintained? Signe Kjelstrup,  

E-Print Network (OSTI)

or by obtaining energy from the outside, of course! A non-equilibrium structure is maintained by supply of energy everywhere; in nature and in industry. Nature has evolved over billions of years, and only the fittest have in some sense. Can the understanding of natural structures be helpful for man-made designs of energy

Kjelstrup, Signe

106

Method and apparatus for maintaining the pH in zinc-bromine battery systems  

DOE Patents (OSTI)

A method and apparatus for maintaining the pH level in a zinc-bromine battery features reacting decomposition hydrogen with bromine in the presence of a catalyst. The catalyst encourages the formation of hydrogen and bromine ions. The decomposition hydrogen is therefore consumed, alloying the pH of the system to remain substantially at a given value.

Grimes, Patrick G. (Westfield, NJ)

1985-09-10T23:59:59.000Z

107

Interim Stabilization Equipment Essential and Support Drawing Plan  

SciTech Connect

The purpose of this document is to list the Interim Stabilization equipment drawings that are classified as Essential or Support drawings. Essential Drawings: Those drawings identified by the facility staff as necessary to directly support the safe operation of the facility or equipment. Support Drawings: Those drawings identified by the facility staff that further describe the design details of structures, systems or components shown on essential drawings.

KOCH, M.R.

1999-10-22T23:59:59.000Z

108

Interim Stabilization Equipment Essential and Support Drawing Plan  

Science Conference Proceedings (OSTI)

The purpose of this document is to list the Interim Stabilization equipment drawings that are classified as Essential or Support drawings. Essential Drawings are those drawings identified by the facility staff as necessary to directly support the safe operation of the facility or equipment. [CHG 2000a]. Support Drawings are those drawings identified by the facility staff that further describe the design details of structures, systems or components shown on essential drawings. [CHG 2000a].

HORNER, T.M.

2000-10-16T23:59:59.000Z

109

CHEMICAL COMPOSITION OF THE ESSENTIAL OIL AND ETHER ...  

Science Conference Proceedings (OSTI)

essential oil from R. rugosum was investigated for further development and application. The chemical and class composition of the oils are presented in Table 1.

110

Understanding the essential work of fracture at the molecular level.  

E-Print Network (OSTI)

??xix, 138 leaves : ill. ; 30 cm HKUST Call Number: Thesis MECH 2006 Chen The essential work of fracture (EWF), a tool for characterizing (more)

Chen, Haibin

2006-01-01T23:59:59.000Z

111

Solid-State Lighting: LED Essentials - Technology, Applications...  

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

Applications, Advantages, Disadvantages to someone by E-mail Share Solid-State Lighting: LED Essentials - Technology, Applications, Advantages, Disadvantages on Facebook Tweet...

112

The Evolution of Research and Education Networks and their Essential...  

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

editors, IOS Press publisher The Evolution of Research and Education Networks and their Essential Role in Modern Science William JOHNSTON, Evangelos CHANIOTAKIS, Eli DART, Chin...

113

Politics and Emergency Medicine - An Essential Lesson for Every Resident  

E-Print Network (OSTI)

and guide the future of emergency medicine. Volume XII, no .s S ection Politics and Emergency Medicine - An EssentialMedicine, Department of Emergency Medicine, Orange, CA Every

2011-01-01T23:59:59.000Z

114

Saudi Arabian and Japanese Support The anticipated cost of deploying and maintaining the massive American  

E-Print Network (OSTI)

essential construction and services for the troops and saved the American government millions of dollars. Army doctrine stipulates that whenever troops deploy to a foreign country, the United States an abundance of food, water, facilities, and other assets, but the United States had no management

US Army Corps of Engineers

115

Opening up access to online documents using essentiality tracks  

Science Conference Proceedings (OSTI)

This paper discusses extensions to the previously developed "essentiality and proficiency" approach to increasing usability and accessibility of websites. The existing approach is introduced, as is a new application in the processing of Doc-Book XML ... Keywords: DocBook, XML, accessibility, essentiality, proficiency, usability, web

Matthew T. Atkinson; Jatinder Dhiensa; Colin H. C. Machin

2006-05-01T23:59:59.000Z

116

Plant Engineering: Guidelines for Establishing, Maintaining, and Extending the Shelf Life Capability of Limited Life Items  

Science Conference Proceedings (OSTI)

In accordance with 10CFR50 Appendix B, 10CFR71, and 10CFR72, nuclear utilities have a commitment to establish and maintain material control programs to assure the safety and reliability of generation facilities. Economic considerations demand that shelf life for a limited life item be maximized without affecting plant safety. Once shelf life is established, a utility may need to evaluate the usefulness of an item with an expired shelf life. In addition, technical incongruities may shorten the remaining s...

2011-11-03T23:59:59.000Z

117

Essential Innovations Ekistics Town Planning Jiangsu Sifang Culture JV |  

Open Energy Info (EERE)

Ekistics Town Planning Jiangsu Sifang Culture JV Ekistics Town Planning Jiangsu Sifang Culture JV Jump to: navigation, search Name Essential Innovations, Ekistics Town Planning, & Jiangsu Sifang Culture JV Place China Sector Geothermal energy Product Announced in October 2006, this is a JV between Essential Innovation of Canada, Ekistics Town Planning also of Canada, and Jiangsu Sifang Culture Industry of China. The JV is to manufacture geothermal loop-field technology. References Essential Innovations, Ekistics Town Planning, & Jiangsu Sifang Culture JV[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Essential Innovations, Ekistics Town Planning, & Jiangsu Sifang Culture JV is a company located in China .

118

Hanford Site Guide for Preparing and Maintaining Fenerator Group Pollution Prevention Program Documentation  

Science Conference Proceedings (OSTI)

This document provides guidance to generator groups for preparing and maintaining documentation of Pollution Prevention/Waste Minimization (P2/WMin) Program activities. The guidance is one of a hierarchical series that includes the Hanford Site Waste Minimization and Pollution Prevention Awareness Program Plan (DOE-RL, 1998a) and Prime Contractor implementation plans describing programs required by Resource Conservation and Recovery Act of 1976 (RCRA) 3002(b) and (300501) (RCRA and EPA, 1994). Documentation guidance for the following five P2/WMin elements are discussed: Fiscal Year (FY) Goals; Budget and Staffing; Waste Minimization (WMinn ) Assessments (WMAs); Pollution Prevention (P2) Reporting; WMin Certification.

PLACE, B.G.

1999-11-01T23:59:59.000Z

119

The formation and function of the brain ventricular system  

E-Print Network (OSTI)

The brain ventricular system is composed of a highly conserved set of cavities that contain cerebrospinal fluid (CSF), a protein-rich fluid essential for brain function. However, little is known about the function of ...

Chang, Jessica T. (Jessica Tzung-Min)

2012-01-01T23:59:59.000Z

120

Structure-function relationships in human brain development  

E-Print Network (OSTI)

The integration of anatomical, functional, and developmental approaches in cognitive neuroscience is essential for generating mechanistic explanations of brain function. In this thesis, I first establish a proof-of-principle ...

Saygin, Zeynep Mevhibe

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Reliability and Functional Availability of HVAC Systems  

E-Print Network (OSTI)

This paper presents a model to calculate the reliability and availability of heating, ventilation and air conditioning systems. The reliability is expressed in the terms of reliability, maintainability and decision capability. These terms are a function of the mean time between failure, mean time to repair and decision time. The availability is expressed as an operational and functional availability of the systems. These terms are a function of both the technical and human characteristics to maintain the systems in correct operational state. The result is based on a large amount data from operational organisations, the compulsory inspection of ventilation systems and momentary and continuous measurements made in HVAC-systems.

Myrefelt, S.

2004-01-01T23:59:59.000Z

122

Section_201_Establishing_Maintaining_and_Deactivating_Limited_and_Vault-Type_Rooms  

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

201 201 Establishing, Maintaining, and Deactivating Limited Areas and Vault-Type Rooms Description Classified matter must be processed, discussed, handled, or stored in designated Limited Areas (LAs) or Vault-Type Rooms (VTRs). LAs and VTRs must have security measures in place to detect and deter unauthorized persons from gaining access to the classified matter. This includes measures to prevent unauthorized persons from seeing or hearing classified information. All LAs and VTRs at Headquarters (HQ) must be approved by the Office of HQ Security Operations (HS-90) prior to the initiation of classified activities or the introduction of classified material or equipment. Definitions of a LA and VTR: 1. Limited Area (LA)--An LA is a security area designated for the protection of classified

123

EnergySmart Schools Tips: Retrofitting, Operating, and Maintaining Existing Buildings  

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

EnergySmart Schools EnergySmart Schools EnergySmart Schools Tips: Retrofitting, Operating, and Maintaining Existing Buildings Quick wins and long-term facility management strategies that pay for themselves and result in energy savings Typical School Energy Use Distribution (varies by climate zone) 30% Lighting Cooling Space Heating Water Heating Other 23% 30% 10% 7% Combining preventative operations and maintenance (O&M) with strategic retrofitting of building systems improves a school's energy performance. For schools with limited resources and experience, "quick wins" in O&M and retrofitting provide a valuable starting point to energy management. As a next step, strategically prioritizing long- and short-term measures produces overall returns on investment. Please refer to the

124

Continuous-wave parametric oscillation in polarisation-maintaining optical fibre  

SciTech Connect

Continuous-wave parametric oscillation in a polarisation-maintaining optical fibre has been achieved for the first time using polarisation phase matching. Up-conversion with a frequency shift of {approx}8.6 THz has been demonstrated experimentally. The single-pass optical power generated at 1017 nm in a 85-m-long Nufern PM980-XP fibre exceeded 40 mW. The conversion efficiency was 3.3%, which is an order of magnitude higher than that reported previously for cw parametric up-conversion in the 1-{mu}m spectral region. We compare theoretical predictions with experimental data and analyse factors that may influence output power saturation with increasing signal and pump powers.

Zlobina, E A; Kablukov, S I; Babin, Sergei A [Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)

2011-09-30T23:59:59.000Z

125

Apparatus for maintaining aligment of a shrinking weld joint in an electron-beam welding operation  

DOE Patents (OSTI)

The invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignement with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a bias means for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base in indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld joint with the electron beam during each welding pass.

Trent, J.B.; Murphy, J.L.

1980-01-03T23:59:59.000Z

126

Apparatus for maintaining alignment of a shrinking weld joint in an electron-beam welding operation  

SciTech Connect

The present invention is directed to an apparatus for automatically maintaining a shrinking weld joint in alignment with an electron beam during an electron-beam multipass-welding operation. The apparatus utilizes a biasing device for continually urging a workpiece-supporting face plate away from a carriage mounted base that rotatably supports the face plate. The extent of displacement of the face plate away from the base is indicative of the shrinkage occuring in the weld joint area. This displacement is measured and is used to move the base on the carriage a distance equal to one-half the displacement for aligning the weld joint with the electron beam during each welding pass.

Trent, Jett B. (Knoxville, TN); Murphy, Jimmy L. (Oak Ridge, TN)

1981-01-01T23:59:59.000Z

127

An improved algorithm for maintaining arc consistency in dynamic constraint satisfaction problems  

E-Print Network (OSTI)

Real world is dynamic in its nature, so techniques attempting to model the real world should take this dynamicity in consideration. A well known Constraint Satisfaction Problem (CSP) can be extended this way to a so called Dynamic Constraint Satisfaction Problem (DynCSP) that supports adding and removing constraints in runtime. As Arc Consistency is one of the major techniques in solving CSPs, its dynamic version is of a particular interest for DynCSPs. This paper presents an improved version of AC|DC-2 algorithm for maintaining maximal arc consistency after constraint retraction. This improvement leads to runtimes better than the so far fastest dynamic arc consistency algorithm DnAC-6 while keeping low memory consumption. Moreover, the proposed algorithm is open in the sense of using either non-optimal AC-3 algorithm keeping a minimal memory consumption or optimal AC-3.1 algorithm improving runtime for constraint addition but increasing a memory consumption.

Roman Bartk; Pavel Surynek

2005-01-01T23:59:59.000Z

128

Independent transmission system operators and their role in maintaining reliability in a restructured electric power industry  

Science Conference Proceedings (OSTI)

This report summarizes the current status of proposals to form Independent System Operators (ISOs) to operate high-voltage transmission systems in the United States and reviews their potential role in maintaining bulk power system reliability. As background information, the likely new industry structure, nature of deregulated markets, and institutional framework for bulk power system reliability are reviewed. The report identifies issues related to the formation of ISOs and their roles in markets and in reliability, and describes potential policy directions for encouraging the formation of effective ISOs and ensuring bulk system reliability. Two appendices are provided, which address: (1) system operation arrangements in other countries, and (2) summaries of regional U.S. ISO proposals.

NONE

1998-01-01T23:59:59.000Z

129

Hanford Site Guide for Preparing and Maintaining Generator Group Pollution Prevention Program Documentation  

SciTech Connect

This document provides guidance to generator groups for preparing and maintaining documentation of Pollution Prevention/Waste Minimization (P2/WMin) Program activities. The guidance is one of a hierarchical series that includes the Hanford Site Waste Minimization and Pollution Prevention Awareness Program Plan (DOE-RL, 2000) and Prime Contractor implementation plans describing programs required by Resource Conservation and Recovery Act of 1976 (RCRA) 3002(b) and 3005(h) (RCRA and EPA, 1994) and Department of Energy Acquisition Regulations (DEAR) (48 CFR 970.5204-2 and 48 CFR 970.5204-78). Documentation guidance for the following five P2/WMin elements is discussed: Fiscal Year (FY) Goals; Budget and Staffing; Pollution Prevention (P2) Reporting; WMin Certification; and Waste Minimization (WMin) Assessments (WMAs).

PLACE, B.G.

2000-11-01T23:59:59.000Z

130

Wide Bandgap Semiconductors: Essential to Our Technology Future |  

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

Wide Bandgap Semiconductors: Essential to Our Technology Future Wide Bandgap Semiconductors: Essential to Our Technology Future Wide Bandgap Semiconductors: Essential to Our Technology Future January 15, 2014 - 8:00am Addthis Learn how wide bandgap semiconductors could impact clean energy technology and our daily lives. | Video by Sarah Gerrity and Matty Greene, Energy Department. Dr. Ernest Moniz Dr. Ernest Moniz Secretary of Energy What are the key facts? North Carolina State University will lead the Energy Department's new manufacturing innovation institute for the next generation of power electronics, focusing on wide bandgap (WBG) semiconductors. Building America's leadership in WBG semiconductor manufacturing while driving down the cost of the technology could lead to more affordable products for businesses and consumers, billions of dollars in energy

131

Supervisory Essentials: Strategies for Success! | Department of Energy  

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

Supervisory Essentials: Strategies for Success! Supervisory Essentials: Strategies for Success! Supervisory Essentials: Strategies for Success! September 11, 2013 8:30AM EDT to September 12, 2013 4:00PM EDT Registration link: CHRIS (002072/0037) $600 Course type: Classroom Course Location: DOE Headquarters, Forrestal Building, Washington, DC /Room 1E-245 Course Description: This course is designed to assist new first-line supervisors in developing the competencies they need to achieve their primary responsibilities, some of which include: Accomplishing the goals of their units through the work of their employees; ensuring that the work of their employees is of the highest possible quality. The course can also assist newly appointed managers as well as serve as a refresher for experienced supervisors and managers who would like a refresher. This

132

Redefining Customer Service is Essential to Modernizing Grid | Department  

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

Redefining Customer Service is Essential to Modernizing Grid Redefining Customer Service is Essential to Modernizing Grid Redefining Customer Service is Essential to Modernizing Grid December 13, 2010 - 2:44pm Addthis Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability What does this mean for me? Utilities should be communicating to you about projects to modernize the grid that are effecting you. When was the last time you talked to your electricity provider about something besides a service or billing problem? Put another way, does your utility ask for your opinion on its plans for the future? Do you feel like your concerns are heard? There has been a lot of news lately about projects that focus on modernizing the electric grid, with some of it focused on legitimate

133

Joint Use School Partnerships in California: Strategies to Enhance Schools and Communities  

E-Print Network (OSTI)

thesefacilitiesaremaintainedisessentialtoreducingfacilitiesandprogramsfunction,itisessentialtoessentialto implementingandmaintainingeachcasestudysjointuseprogram/facility.

Vincent, Jeffrey M; Cooper, Tamar

2008-01-01T23:59:59.000Z

134

Time-bounded essential localization for wireless sensor networks  

Science Conference Proceedings (OSTI)

In many practical applications of wireless sensor networks, it is crucial to accomplish the localization of sensors within a given time bound. We find that the traditional definition of relative localization is inappropriate for evaluating its actual ... Keywords: essential localization, relative localization, time-bounded localization, wireless sensor networks

Wei Cheng; Nan Zhang; Xiuzhen Cheng; Min Song; Dechang Chen

2013-04-01T23:59:59.000Z

135

UMSL CHINA PROGRAM -Essential In-Country Information Program Coordinator  

E-Print Network (OSTI)

UMSL CHINA PROGRAM - Essential In-Country Information IN BEIJING Program Coordinator Dr. Rose Xinjuan Zhang, Associate Provost of International Programs Professor of Law, China Youth University of Political Science 25 No. West Third Ring Road Beijing 10008 P.R. China Phone: 86 10 8856 7101 Seasea

Crone, Elizabeth

136

METRO Metropolitan Exposition Recreation Commission MERC Facilities Efficiently Maintained Maybe Too Efficiently  

E-Print Network (OSTI)

To the Metro Council, Metropolitan Exposition Recreation Commission and Metro-area citizens: As part of the Metro Auditors risk assessment and audit plan, we studied facility care and capital improvement processes at the Metropolitan Exposition Recreation Commission (MERC), a unit of Metro. Facility care includes janitorial and repair and maintenance activities. Capital improvement processes include plans for determining necessary capital improvements and obtaining adequate, reliable funding for capital renewal and replacement projects. MERC owns public assembly facilities with a book value of over $200 million. It manages the Oregon Convention Center, the Portland Center for the Performing Arts and the Portland Metropolitan Exposition Center. The cost of maintaining and safeguarding these facilities consumes about 14 % of MERCs operating revenues each year. The cost of MERC facilities care activities benchmark below that of other facilities across the nation. While low cost is generally a positive, some improvements in facility care practices and capital improvement processes could be made. We recommend that MERC: Evaluate the adequacy of staffing for janitorial and maintenance activities and add electrical expertise where needed.

Alexis Dow Cpa; A Uditor; A Lexis; D Ow

2006-01-01T23:59:59.000Z

137

WHY DO TUNA MAINTAIN ELEVATED SLOW MUSCLE TEMPERATURES? POWER OUTPUT OF MUSCLE ISOLATED FROM ENDOTHERMIC AND  

E-Print Network (OSTI)

It has been hypothesised that regional endothermy has evolved in the muscle of some tunas to enhance the locomotory performance of the fish by increasing muscle power output. Using the work loop technique, we have determined the relationship between cycle frequency and power output, over a range of temperatures, in isolated bundles of slow muscle fibres from the endothermic yellowfin tuna (Thunnus albacares) and its ectothermic relative the bonito (Sarda chiliensis). Power output in all preparations was highly temperature-dependent. A counter-current heat exchanger which could maintain a 10 C temperature differential would typically double maximum muscle power output and the frequency at which maximum power is generated (fopt). The deep slow muscle of the tuna was able to operate at higher temperatures than slow muscle from the bonito, but was more sensitive to Summary temperature change than more superficially located slow fibres from both tuna and bonito. This suggests that it has undergone some evolutionary specialisation for operation at higher, but relatively stable, temperatures. fopt of slow muscle was higher than the tailbeat frequency of undisturbed cruising tuna and, together with the high intrinsic power output of the slow muscle mass, suggests that cruising fish have a substantial slow muscle power reserve. This reserve should be sufficient to power significantly higher sustainable swimming speeds, presumably at lower energetic cost than if intrinsically less efficient fast fibres were recruited.

Ectothermic Fish; John D. Altringham; Barbara A. Block

1997-01-01T23:59:59.000Z

138

Assessing the influence of import-coupling on OCL expression maintainability: A cognitive theory-based perspective  

Science Conference Proceedings (OSTI)

The aim of this paper is to present the definition of the measures for the import-coupling of OCL expressions, along with the empirical validation of these as early indicators of the maintainability of OCL expressions. This empirical validation has been ... Keywords: Cognitive models, Comprehensibility, Experiments, Import-coupling, Maintainability, Mental models, Meta-analysis, Modifiability, OCL expressions, Software measures, UML/OCL models

Luis Reynoso; Esperanza Manso; Marcela Genero; Mario Piattini

2010-10-01T23:59:59.000Z

139

Maintaining electric power system performance: Preparing for the year 2020: Research needs  

DOE Green Energy (OSTI)

The US electric power delivery system will undergo dramatic changes between now and the year 2020. Without an aggressive research and development (R&D) program to develop and integrate new technologies, a substantial mismatch could develop between the system`s performance and the public`s expectations for a stable, reliable source of energy. This report provides a perspective on the future US electrical power delivery system and outlines the major issues for R&D support that will be required to maintain the performance of the system successfully through the year 2020. To define the R&D needs in the electric utility sector, the US Department of Energy (DOE) Office of Energy Management under the Assistant Secretary for Conservation and Renewable Energy, in participation with the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA), met with electric utility industry leaders in Denver, Colorado, on March 19 and 20, 1990. The major areas that require increased R&D in order to meet the challenges of system needs by the year 2020 include the following: Effects of exposure to electric and magnetic fields (EMFs), real-time power system control, higher-capacity transmission options, high capacity power electronics, and energy storage. An electric energy delivery system that reliably supplies sufficient electric power at the lowest possible cost to meet the nation`s needs is vital to the economic health of the US. In order to meet the challenges facing the national supply and delivery of electric power in the future, all parties concerned with the R&D of supply and delivery technologies for electric energy must cooperate and must seek to leverage the limited funds available.

Dale, S.J.; Stovall, J.P. [Oak Ridge National Lab., TN (United States); Klein, K.W. [Energetics, Inc., Washington, DC (United States)

1991-11-01T23:59:59.000Z

140

Maintaining electric power system performance: Preparing for the year 2020: Research needs  

DOE Green Energy (OSTI)

The US electric power delivery system will undergo dramatic changes between now and the year 2020. Without an aggressive research and development (R D) program to develop and integrate new technologies, a substantial mismatch could develop between the system's performance and the public's expectations for a stable, reliable source of energy. This report provides a perspective on the future US electrical power delivery system and outlines the major issues for R D support that will be required to maintain the performance of the system successfully through the year 2020. To define the R D needs in the electric utility sector, the US Department of Energy (DOE) Office of Energy Management under the Assistant Secretary for Conservation and Renewable Energy, in participation with the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA), met with electric utility industry leaders in Denver, Colorado, on March 19 and 20, 1990. The major areas that require increased R D in order to meet the challenges of system needs by the year 2020 include the following: Effects of exposure to electric and magnetic fields (EMFs), real-time power system control, higher-capacity transmission options, high capacity power electronics, and energy storage. An electric energy delivery system that reliably supplies sufficient electric power at the lowest possible cost to meet the nation's needs is vital to the economic health of the US. In order to meet the challenges facing the national supply and delivery of electric power in the future, all parties concerned with the R D of supply and delivery technologies for electric energy must cooperate and must seek to leverage the limited funds available.

Dale, S.J.; Stovall, J.P. (Oak Ridge National Lab., TN (United States)); Klein, K.W. (Energetics, Inc., Washington, DC (United States))

1991-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Quantification of Libby Reservoir Levels Needed to Maintain or Enhance Reservoir Fisheries, 1985 Annual Report.  

DOE Green Energy (OSTI)

The goal was to quantify seasonal water levels needed to maintain or enhance the reservoir fishery in Libby. This report summarizes data collected from July 1984 through July 1985, and, where appropriate, presents data collected since 1983. The Canada, Rexford, and Tenmile areas of the reservoir are differentially affected by drawdown. Relative changes in water volume and surface area are greatest in the Canada area and smallest in the Tenmile area. Reservoir morphology and hydraulics probably play a major role in fish distribution through their influence on water temperature. Greatest areas of habitat with optimum water temperature for Salmo spp. and kokanee occurred during the spring and fall months. Dissolved oxygen, pH and conductivity levels were not limiting during any sampling period. Habitat enhancement work was largely unsuccessful. Littoral zone vegetation plantings did not survive well, primarily the result of extreme water level fluctuations. Relative abundances of fish species varied seasonally within and between the three areas. Water temperature is thought to be the major influence in fish distribution patterns. Other factors, such as food availability and turbidity, may mitigate its influence. Sampling since 1975 illustrates a continued increase in kokanee numbers and a dramatic decline in redside shiners. Salmo spp., bull trout, and burbot abundances are relatively low while peamouth and coarsescale sucker numbers remain high. A thermal dynamics model and a trophic level components model will be used to quantify the impact of reservoir operation on the reservoir habitat, primary production, secondary production and fish populations. Particulate carbon will be used to track energy flow through trophic levels. A growth-driven population dynamics simulation model that will estimate the impacts of reservoir operation on fish population dynamics is also being considered.

Chisholm, Ian

1985-01-01T23:59:59.000Z

142

The Need for Essential Consumer Protections: Smart metering proposals and  

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

metering metering proposals and the move to time-based pricing. August 2010 The Need for Essential Consumer Protections: Smart metering proposals and the move to time-based pricing. August 2010 There is widespread consensus that the U.S. distribution and transmission systems for vital electricity service need to be modernized and upgraded. This modernization has been recently promoted under the rubric of the Smart Grid. The Smart Grid vision has three primary parts: (1) new communication and digital sensors and automation capabilities for the distribution and transmission systems; (2) new digital metering systems for all customers; and (3) direct interfaces between the new metering systems and customers through inhome technologies. The Need for Essential Consumer Protections: Smart metering proposals and

143

Essential role of Chk1 in S phase progression through regulation of RNR2 expression  

Science Conference Proceedings (OSTI)

Chk1 is an essential kinase for maintaining genome integrity and cell cycle checkpoints through phosphorylating several downstream targets. Recently, we demonstrated that Chk1 is also required for cell proliferation in somatic cells under unperturbed condition through regulating transcription of several genes. Here, we show that Chk1 is required for S phase progression and RNR2 is a critical downstream target of genes transcriptionally regulated by Chk1. Hence, although RNR2 expression reached maximum at S phase in the presence of Chk1, Chk1 depletion arrested the cell cycle at S phase and reduced RNR2 expression at both mRNA and protein levels. Ectopic expression of RNR2 failed to rescue the S phase arrest observed in Chk1 depleted cells, suggesting the presence of an additional Chk1-target(s) for completion of S phase other than RNR2. Therefore, our results suggest that Chk1 is required for DNA replication at least through regulating RNR2 gene transcription.

Naruyama, Hiromichi [Department of Cell Biology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601 (Japan); Department of Urology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601 (Japan); Shimada, Midori; Niida, Hiroyuki; Zineldeen, Doaa H. [Department of Cell Biology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601 (Japan); Hashimoto, Yoshihiro; Kohri, Kenjiro [Department of Urology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601 (Japan); Nakanishi, Makoto [Department of Cell Biology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601 (Japan)], E-mail: mkt-naka@med.nagoya-cu.ac.jp

2008-09-12T23:59:59.000Z

144

Effect of soiling on solar mirrors and techniques used to maintain high reflectivity  

DOE Green Energy (OSTI)

Solar mirrors are used to concentrate low-level solar radiation to power levels which are practical and efficient for consumption. Any interference with the collection of that energy not only decreases the power level but also increases the cost of the energy available from a solar power system. One of the most immediate and drastic effects of outdoor exposure is the reflectance loss due to the accumulation of foreign particles on the mirror surface. Specular reflectance losses as great as 25% have been observed for mirrors exposed for only a few weeks. The effect of the deposited particles is to reduce the reflected energy by both absorbing and scattering light. The degree to which the particles reduce the collection of reflected energy depends on their composition, number and size distribution. An additional factor is the optics of the collection system. The angular acceptance aperture of the system, defined as the angle subtended by the receiver at the concentrator surface, determines the relative importance of the scattering due to dust accumulation. For flat plate thermal and photovoltaic collectors which have essentially a 180/sup 0/ angular acceptance aperture, scattering of the incident light is not critical but absorption can be an important factor in the loss of energy. For concentrating collection systems, such as line focus collectors and central receivers, angular acceptance apertures of a few degrees make scattering at the concentrator surface much more important and can result in severe energy losses. Results of a study of each of these areas are presented and discussed. (WHK)

Roth, E.P.; Pettit, R.B.

1980-06-01T23:59:59.000Z

145

Nondestructive Evaluation: Recommended Practices for Maintaining Radiation Safety of Radiographic Operations at a Nuclear Plant  

Science Conference Proceedings (OSTI)

Radiation safety programs for radiographic operations at nuclear power plants are more complex than for those operations at other types of industrial and commercial facilities. This level of complexity arises because of the numerous challenges to maintenance of excellence in radiation safety at nuclear power facilities where sources of radiation may be found at various locations in the facility and multiple safety functions must be considered at all times. The facilities themselves are also large with mu...

2010-12-23T23:59:59.000Z

146

Steam Turbine Supervisory Instrumentation Systems, Volume 1: Reducing Spurious Trips While Maintaining Machine Protection  

Science Conference Proceedings (OSTI)

Recently, personnel at a number of utilities operating steam turbine generators have expressed concern with regard to spurious or unnecessary unit trips caused by turbine supervisory instrumentation (TSI). Spurious trips can be costly, and they can cause unnecessary challenges to safety equipment, especially at nuclear units. A better understanding of the function and design basis surrounding TSI as well as how to appropriately use the instrumentation can help the industry to mitigate risks of false ...

2013-11-25T23:59:59.000Z

147

Definition and means of maintaining the ventilation system confinement portion of the PFP safety envelope  

Science Conference Proceedings (OSTI)

The Plutonium Finishing Plant Heating Ventilation and Cooling system provides for the confinement of radioactive releases to the environment and provides for the confinement of radioactive contamination within designated zones inside the facility. This document identifies the components and procedures necessary to ensure the HVAC system provides these functions. Appendices E through J provide a snapshot of non-safety class HVAC equipment and need not be updated when the remainder of the document and Appendices A through D are updated.

Dick, J.D.; Grover, G.A.; O`Brien, P.M., Fluor Daniel Hanford

1997-03-05T23:59:59.000Z

148

Maintaining Generation Adequacy in a Restructuring U.S. Electricity Industry  

SciTech Connect

Historically, decisions on the amounts, locations, types, and timing of investments in new generation have been made by vertically integrated utilities with approval from state public utility commissions. As the U.S. electricity industry is restructured, these decisions are being fragmented and dispersed among a variety of organizations. As generation is deregulated and becomes increasingly competitive, decisions on whether to build new generators and to retire, maintain, or repower existing units will increasingly be made by unregulated for-profit corporations. These decisions will be based largely on investor assessments of future profitability and only secondarily on regional reliability requirements. In addition, some customers will choose to face real-time (spot) prices and will respond to the occasionally very high prices by reducing electricity use at those times. Market-determined generation levels will, relative to centrally mandated reserve margins, lead to: (1) more volatile energy prices; (2) lower electricity costs and prices; and (3) a generation mix with more baseload, and less peaking, capacity. During the transition from a vertically integrated, regulated industry to a deintegrated, competitive industry, government regulators and system operators may continue to impose minimum-installed-capacity requirements on load-serving entities. As the industry gains experience with customer responses to real-time pricing and with operation of competitive intrahour energy markets, these requirements will likely disappear. We quantitatively analyzed these issues with the Oak Ridge Competitive Electricity Dispatch model (ORCED). Model results show that the optimal reserve margin depends on various factors, including fuel prices, initial mix of generation capacity, and customer response to electricity prices (load shapes and system load factor). Because the correct reserve margin depends on these generally unpredictable factors, mandated reserve margins might be too high, leading to higher electricity costs and prices. Absent mandated reserve margins, electricity prices and costs decline with increasing customer response to prices during high-demand periods. The issues discussed here are primarily transitional rather than enduring. However, the transition from a highly regulated, vertically integrated industry to one dominated by competition is likely to take another five to ten years.

Hirst, E.; Hadley, S.

1999-10-01T23:59:59.000Z

149

Radioisotope Power Systems: An Imperative for Maintaining U.S. Leadership in Space Exploration (Free Executive Summary)  

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

Radioisotope Power Systems: An Imperative for Maintaining U.S. Leadership in Space Exploration (Free Executive Summary) Radioisotope Power Systems: An Imperative for Maintaining U.S. Leadership in Space Exploration (Free Executive Summary) http://www.nap.edu/catalog/12653.html Free Executive Summary ISBN: 978-0-309-13857-4, 74 pages, 8 1/2 x 11, paperback (2009) This executive summary plus thousands more available at www.nap.edu. Radioisotope Power Systems: An Imperative for Maintaining U.S. Leadership in Space Exploration Radioisotope Power Systems Committee, National Research Council This free executive summary is provided by the National Academies as part of our mission to educate the world on issues of science, engineering, and health. If you are interested in reading the full book, please visit us online at http://www.nap.edu/catalog/12653.html . You may browse and

150

Waste Feed Delivery System Phase 1 Preliminary Reliability and Availability and Maintainability Analysis [SEC 1 and 2  

SciTech Connect

The document presents updated results of the preliminary reliability, availability, maintainability analysis performed for delivery of waste feed from tanks 241-AZ-101 and 241-AN-105 to British Nuclear Fuels Limited, inc. under the Tank Waste Remediation System Privatization Contract. The operational schedule delay risk is estimated and contributing factors are discussed.

CARLSON, A.B.

1999-11-11T23:59:59.000Z

151

Load requirements for maintaining structural integrity of Hanford single-shell tanks during waste feed delivery and retrieval activities  

Science Conference Proceedings (OSTI)

This document provides structural load requirements and their basis for maintaining the structural integrity of the Hanford Single-Shell Tanks during waste feed delivery and retrieval activities. The requirements are based on a review of previous requirements and their basis documents as well as load histories with particular emphasis on the proposed lead transfer feed tanks for the privatized vitrification plant.

JULYK, L.J.

1999-09-22T23:59:59.000Z

152

The Need for Essential Consumer Protections: Smart Metering Proposals and  

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

Metering Metering Proposals and the Move to Time-Based Pricing The Need for Essential Consumer Protections: Smart Metering Proposals and the Move to Time-Based Pricing There is a widespread consensus that the U.S. distribution and transmission systems for vital electricity service need to be modernized and upgraded to handle not only load growth, but the integration of renewable resources and the potential for a significant increase in electric-powered vehicles. This modernization has been recently promoted under the rubric of the Smart Grid. The Smart Grid vision has three primary parts: (1) new communication and digital sensors and automation capabilities for the distribution and transmission systems, designed to make the grid more reliable and capable of integrating renewable and local-level distribution

153

Systems security and functional readiness  

SciTech Connect

In Protective Programming Planning, it is important that every facility or installation be configured to support the basic functions and mission of the using organization. This paper addresses the process of identifying the key functional operations of our facilities in Europe and providing the security necessary to keep them operating in natural and man-made threat environments. Functional Readiness is important since many of our existing facilities in Europe were not constructed to meet the demands of today's requirements. There are increased requirements for real-time systems with classified terminals and stringent access control, tempest and other electronic protection devices. One must prioritize the operations of these systems so that essential functions are provided even when the facilities are affected by overt or covert hostile activities.

Bruckner, D.G.

1988-01-01T23:59:59.000Z

154

Functional Specifications  

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

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

155

Fleet servicing facilities for servicing, maintaining, and testing rail and truck radioactive waste transport systems: functional requirements, technical design concepts and options cost estimates and comparisons  

Science Conference Proceedings (OSTI)

This is a resource document which examines feasibility design concepts and feasibility studies of a Fleet Servicing Facility (FSF). Such a facility is intended to be used for routine servicing, preventive maintenance, and for performing requalification license compliance tests and inspections, minor repairs, and decontamination of both the transportation casks and their associated rail cars or tractor-trailers. None of the United States' waste handling plants presently receiving radioactive wastes have an on-site FSF, nor is there an existing third party facility providing these services. This situation has caused the General Accounting Office to express concern regarding the quality of waste transport system maintenance once the system is placed into service. Thus, a need is indicated for FSF's, or their equivalent, at various radioactive materials receiving sites. In this report, three forms of FSF's solely for spent fuel transport systems were examined: independent, integrated, and colocated. The independent concept was already the subject of a detailed report and is extensively referenced in this document so that capital cost comparisons of the three concepts could be made. These facilities probably could service high-level, intermediate-level, low-level, or other waste transportation systems with minor modification, but this study did not include any system other than spent fuel. Both the Integrated and Colocated concepts were assumed to be associated with some radioactive materials handling facility such as an AFR repository.

Watson, C.D.; Hudson, B.J.; Keith, D.A.; Preston, M.K. Jr.; McCreery, P.N.; Knox, W.; Easterling, E.M.; Lamprey, A.S.; Wiedemann, G.

1980-05-01T23:59:59.000Z

156

Apparatus for adjusting and maintaining humidity of a gas at a constant value within a closed system  

SciTech Connect

An improved apparatus was developed for maintaining the humidity of a gas at a constant value within a closed system for long periods of time by using saturated salt solutions and isolating the sample environment from the salt environment. This apparatus avoids many problems associated with humidity/temperature chambers and off-the-shelf laboratory equipment, such as desiccators, that are being used for environmental studies under controlled conditions of humidity and temperature. 3 refs., 2 figs.

Walters, R.R.; Abernathy, B.

1986-02-03T23:59:59.000Z

157

Control system design for maintaining CO{sub 2} capture in IGCC power plants while loading-following  

SciTech Connect

Load-following requirements for future integrated gasification combined cycle (IGCC) power plants with precombustion CO{sub 2} capture are expected to be far more challenging as electricity produced by renewable energy is connected to the grid and strict environmental limits become mandatory requirements. In this work, loadfollowing studies are performed using a comprehensive dynamic model of an IGCC plant with pre-combustion CO{sub 2} capture developed in Aspen Engineering Suite (AES). Considering multiple single-loop controllers for power demand load following, the preferred IGCC control strategy from the perspective of a power producer is gas turbine (GT) lead with gasifier follow. In this strategy, the GT controls the load by manipulating its firing rate while the slurry feed flow to the gasifier is manipulated to control the syngas pressure at the GT inlet. The syngas pressure control is an integrating process with significant time delay mainly because of the large piping and equipment volumes between the gasifier and the GT inlet. A modified proportionalintegralderivative (PID) control is considered for IGCC syngas pressure control. The desired CO{sub 2} capture rate must be maintained while the IGCC plant follows the load. For maintaining the desired CO{sub 2} capture rate, the control performance of PID control is compared with linear model predictive control (LMPC). The results show that the LMPC outperforms PID control for maintaining CO{sub 2} capture rates in an IGCC power plant while load following.

Bhattacharyya, D.; Turton, R.; Zitney, S.

2012-01-01T23:59:59.000Z

158

Healthful LipidsChapter 10 Essential Fatty Acid Metabolism to Self-Healing Agents  

Science Conference Proceedings (OSTI)

Healthful Lipids Chapter 10 Essential Fatty Acid Metabolism to Self-Healing Agents Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry Press Downloadable pdf of Chapter 10 Essential Fatty A

159

Part Functions  

Science Conference Proceedings (OSTI)

Table 1   Functions served by parts...Mechanical power Shafts, connecting rods, gears Electricity Wires, lightbulb elements, resistors Provide a barrier (for example: reflect, cover, enclose,

160

Functional quantization  

E-Print Network (OSTI)

Data is rarely obtained for its own sake; oftentimes, it is a function of the data that we care about. Traditional data compression and quantization techniques, designed to recreate or approximate the data itself, gloss ...

Misra, Vinith

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Developing and Maintaining a Master Equipment List for Fossil Power Plants: Asset Naming Conventions, Classifications and Hierarchies  

Science Conference Proceedings (OSTI)

As electric generating utilities built their fleets in the United States,it was not uncommon for different architectural engineering firms todesign and build the various power plants within the fleets. Thisoften resulted in several inconsistencies across the fleet related todrawing and design documentation and information regardingsystems and components. Essentially, each plant would become itsown entity and have the responsibility of developing and ...

2012-12-26T23:59:59.000Z

162

Water UseWater Use ater is an essential part of life and an essential part of any farm. It is necessary for growing produce and often  

E-Print Network (OSTI)

. It is necessary for growing produce and often for cleaning produce before it is sold. Water may also be usedWater UseWater Use W ater is an essential part of life and an essential part of any farm to protect crops from frost or to apply fertilizers or pesticides. Ensuring that you have clean water

Liskiewicz, Maciej

163

Apparatus for adjusting and maintaining the humidity of gas at a constant value within a closed system  

DOE Patents (OSTI)

The humidity of a gas within a closed system is maintained at constant level by providing a saturated salt solution within a lower chamber in communication with an upper chamber conjointly defined by upper and lower container sections in sealing contact with each other to establish a closed container. A partition wall separates the salt solution from the test region in the upper chamber. A tube extending through the partition plate allows humidified gas to pass from the lower to the upper chamber. A glass wool plug or membranous material within the tube prevents migration of salt into the test region.

Abernathy, Bethel R. (Franklin, OH); Walters, Ronald R. (Germantown, OH)

1986-01-01T23:59:59.000Z

164

Apparatus for adjusting and maintaining the humidity of gas at a constant value within a closed system  

DOE Patents (OSTI)

The humidity of a gas within a closed system is maintained at constant level by providing a saturated salt solution within a lower chamber in communication with an upper chamber conjointly defined by upper and lower container sections in sealing contact with each other to establish a closed container. A partition wall separates the salt solution from the test region in the upper chamber. A tube extending through the partition plate allows humidified gas to pass from the lower to the upper chamber. A glass wool plug or membranous material within the tube prevents migration of salt into the test region.

Abernathy, B.R.; Walters, R.R.

1985-08-05T23:59:59.000Z

165

STEWARDSHIP MAINTAINING NATURAL RICHES  

E-Print Network (OSTI)

SHOWCASING INNOVATION WATER CONSERVING PRESCIOUS RESOURCES ENERGY MOVING TO A BRIGHTER FUTURE WASTE REDUCING ENERGY MOVING TO A BRIGHTER FUTURE WASTE REDUCING AND RECYCLING #12;Sustainable Stanford Program SHOWCASING INNOVATION WATER CONSERVING PRESCIOUS RESOURCES ENERGY MOVING TO A BRIGHTER FUTURE WASTE REDUCING

Ford, James

166

The Importance of Establishing and Maintaining Continuity of Knowledge during 21st Century Nuclear Fuel Cycle Activities  

SciTech Connect

During this century, the entire nuclear fuel cycle will expand and become increasingly more global, taxing both the resources and capabilities of the International Atomic Energy Agency (IAEA) to maintain an effective Continuity of Knowledge (CoK) and its ability to provide timely detection of diversion. Uranium that currently is mined and milled in one country will be converted, enriched, and fabricated into fuel for reactors in an expanding set of new countries. This expansion will make it harder to guarantee that regional activities stay regional and that diversion detection is timely unless new and sustainable tools are developed to improve inspector effectiveness. To deal with this emerging reality, the IAEA must increase its use of unattended monitoring and employ new tools and methods that enhance CoK during all phases of the fuel cycle. This approach will help provide useful information to aid in detecting undeclared activities and create opportunities for timely and appropriate responses to events well before they enter phases of greater concern (e.g., enrichment). The systems that maintain CoK of safeguarded assets rely on containment and surveillance (C/S) technologies. The 21st century fuel cycle will require increased use of these technologies and systems, plus greater implementation of unattended systems that can securely collect data when inspectors are not present.

Pickett, Chris A [ORNL; Rowe, Nathan C [ORNL; Younkin, James R [ORNL; Wishard, Bernard [International Atomic Energy Agency (IAEA); Bean, Robert [U.S. Department of Energy, NNSA; Blair, Dianna [Sandia National Laboratories (SNL); Lawson, Ray [Savannah River National Laboratory (SRNL); Weeks, George [Savannah River National Laboratory (SRNL); Tolk, Keith [Milagro Consulting

2012-01-01T23:59:59.000Z

167

OISM Division Functional Statements  

Science Conference Proceedings (OSTI)

... and provides responses to the Department of Commerce CIO Office for ... Develops and maintains database systems including the design of the IT ...

2011-06-22T23:59:59.000Z

168

Quantifying beliefs by belief functions: an axiomatic justification  

Science Conference Proceedings (OSTI)

We present a set of axioms that justify the use of belief functions to quantify the beliefs held by an agent Y at time t and based on Y's evidential corpus. It is essentially postulated that degrees of belief are quantified by a function in [0,1] that ...

Philippe Smets

1993-08-01T23:59:59.000Z

169

DOE-STD-1063-97; DOE Standard Establishing and Maintaining a Facility Representative Program at DOE Facilities  

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

3-97 3-97 October 1997 Supersedes DOE-STD-1063-93 DOE STANDARD ESTABLISHING AND MAINTAINING A FACILITY REPRESENTATIVE PROGRAM AT DOE FACILITIES U.S. Department of Energy AREA FACR Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document 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; (423) 576-8401. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 487-4650. Order No. DE98001286 DOE-STD-1063-97 iii FOREWORD 1. This Department of Energy standard is approved for use by all DOE Components.

170

Quantification of Libby Reservoir Water Levels Needed to Maintain or Enhance Reservoir Fisheries, 1988-1996 Methods and Data Summary.  

DOE Green Energy (OSTI)

The Libby Reservoir study is part of the Northwest Power Planning Council's resident fish and wildlife program. The program was mandated by the Northwest Planning Act of 1980, and is responsible for mitigating for damages to fish and wildlife caused by hydroelectric development in the Columbia River Basin. The objective of Phase I of the project (1983 through 1987) was to maintain or enhance the Libby Reservoir fishery by quantifying seasonal water levels and developing ecologically sound operational guidelines. The objective of Phase II of the project (1988 through 1996) was to determine the biological effects of reservoir operations combined with biotic changes associated with an aging reservoir. This report summarizes the data collected from Libby Reservoir during 1988 through 1996.

Dalbey, Steven Ray

1998-03-01T23:59:59.000Z

171

Characterization of STIP, a multi-domain nuclear protein, highly conserved in metazoans, and essential for embryogenesis in Caenorhabditis elegans  

Science Conference Proceedings (OSTI)

We report here the identification and characterization of STIP, a multi-domain nuclear protein that contains a G-patch, a coiled-coil, and several short tryptophan-tryptophan repeats highly conserved in metazoan species. To analyze their functional role in vivo, we cloned nematode stip-1 genes and determined the spatiotemporal pattern of Caenorhabditis elegans STIP-1 protein. RNA analyses and Western blots revealed that stip-1 mRNA was produced via trans-splicing and translated as a 95-kDa protein. Using reporter constructs, we found STIP-1 to be expressed at all developmental stages and in many tissue/cell types including worm oocyte nuclei. We found that STIP-1 is targeted to the nucleus and forms large polymers with a rod-like shape when expressed in mammalian cells. Using deletion mutants, we mapped the regions of STIP-1 involved in nuclear import and polymer assembly. We further showed that knockdown of C. elegans stip-1 by RNA interference arrested development and resulted in morphologic abnormalities around the 16-cell stage followed by 100% lethality, suggesting its essential role in worm embryogenesis. Importantly, the embryonic lethal phenotype could be faithfully rescued with Drosophila and human genes via transgenic expression. Our data provide the first direct evidence that STIP have a conserved essential nuclear function across metazoans from worms to humans.

Ji Qiongmei [Laboratory of Biochemistry and Molecular Genetics, Lindsley F. Kimball Research Institute, New York Blood Center, 310 E 67th Street, New York, NY 10021 (United States); Huang, C.-H. [Laboratory of Biochemistry and Molecular Genetics, Lindsley F. Kimball Research Institute, New York Blood Center, 310 E 67th Street, New York, NY 10021 (United States)]. E-mail: chuang@nybloodcenter.org; Peng Jianbin [Laboratory of Biochemistry and Molecular Genetics, Lindsley F. Kimball Research Institute, New York Blood Center, 310 E 67th Street, New York, NY 10021 (United States); Hashmi, Sarwar [Developmental Biology, Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY 10021 (United States); Ye Tianzhang [Laboratory of Biochemistry and Molecular Genetics, Lindsley F. Kimball Research Institute, New York Blood Center, 310 E 67th Street, New York, NY 10021 (United States); Chen Ying [Laboratory of Biochemistry and Molecular Genetics, Lindsley F. Kimball Research Institute, New York Blood Center, 310 E 67th Street, New York, NY 10021 (United States)

2007-04-15T23:59:59.000Z

172

The Essential Work of Fracture Method Applied to Mode II Interlaminar Fracture in Fiber Reinforced Polymers.  

E-Print Network (OSTI)

??This thesis presents a new method for determining mode II interlaminar fracture toughness in fiber reinforced polymers (FRP) using the essential work of fracture (EWF) (more)

McKinney, Scott D

2013-01-01T23:59:59.000Z

173

Neutron spectrometry - An essential tool for diagnosing implosions at the National Ignition Facility  

Science Conference Proceedings (OSTI)

DT neutron yield (Y{sub n}), ion temperature (T{sub i}) and down-scatter ratio (dsr) determined from measured neutron spectra are essential metrics for diagnosing the performance of Inertial Confinement Fusion (ICF) implosions at the National Ignition Facility (NIF). A suite of neutron-Time-Of-Flight (nTOF) spectrometers and a Magnetic Recoil Spectrometer (MRS) have been implemented in different locations around the NIF target chamber, providing good implosion coverage and the redundancy required for reliable measurements of Yn, Ti and dsr. From the measured dsr value, an areal density ({rho}R) is determined from the relationship {rho}R{sub tot} (g/cm{sup 2}) = (20.4 {+-} 0.6) x dsr{sub 10-12 MeV}. The proportionality constant is determined considering implosion geometry, neutron attenuation and energy range used for the dsr measurement. To ensure high accuracy in the measurements, a series of commissioning experiments using exploding pushers have been used for in situ calibration. The spectrometers are now performing to the required accuracy, as indicated by the good agreement between the different measurements over several commissioning shots. In addition, recent data obtained with the MRS and nTOFs indicate that the implosion performance of cryogenically layered DT implosions, characterized by the experimental Ignition Threshold Factor (ITFx) which is a function of dsr (or fuel {rho}R) and Y{sub n}, has improved almost two orders of magnitude since the first shot in September, 2010.

Mackinnon, A J; Johnson, M G; Frenje, J A; Casey, D T; Li, C K; Seguin, F H; Petrasso, R; Ashabranner, R; Cerjan, C; Clancy, T J; Bionta, R; Bleuel, D; Bond, E J; Caggiano, J A; Capenter, A; Eckart, M J; Edwards, M J; Friedrich, S; Glenzer, S H; Haan, S W; Hartouni, E P; Hatarik, R; Hachett, S P; McKernan, M; Jones, O; Lepape, S; Lerche, R A; Landen, O L; Moran, M; Moses, E; Munro, D; McNaney, J; Rygg, J R; Sepke, S; Spears, B; Springer, P; Yeamans, C; Farrell, M; Kilkenny, J D; Nikroo, A; Paguio, R; Knauer, J; Glebov, V; Sangster, T; Betti, R; Stoeckl, C; Magoon, J; Shoup, M J; Grim, G P; Moran, G L; Murphy, T J; Leeper, R J; Ruiz, C

2012-05-02T23:59:59.000Z

174

Composition kernel: a multi-core processor virtualization layer for rich functional smart products  

Science Conference Proceedings (OSTI)

Future ambient intelligence environments will embed powerful multi-core processors to compose various functionalities into a smaller number of hardware components. This makes the maintainability of intelligent environments better because it is not easy ...

Tatsuo Nakajima; Yuki Kinebuchi; Alexandre Courbot; Hiromasa Shimada; Tsung-Han Lin; Hitoshi Mitake

2010-10-01T23:59:59.000Z

175

Phytologia (April 2012) 94(1) 91 SEASONAL VARIATION IN THE LEAF ESSENTIAL OIL OF  

E-Print Network (OSTI)

Phytologia (April 2012) 94(1) 91 SEASONAL VARIATION IN THE LEAF ESSENTIAL OIL OF TAXODIUM DISTICHUM Robert_Adams@baylor.edu ABSTRACT The leaf essential oil of Taxodium distichum is dominated by -pinene (63-69%) with moderate amounts of limonene, - phellandrene, myrcene and -pinene. Oil yield increased from April (3.45 mg

Adams, Robert P.

176

Usingthe Essential Work of Fracture Method for Studying Physical Aging in Thin,  

E-Print Network (OSTI)

Usingthe Essential Work of Fracture Method for Studying Physical Aging in Thin, Ductile, Polymeric that impact properties change significantly after 30 days of aging at 50°C. To q u a n e this deleterious effect of aging, we did small-scale laboratory experi- ments using the essential work of fracture method

Nairn, John A.

177

Competition-regulation interface in telecommunications: What's left of the essential facility doctrine  

Science Conference Proceedings (OSTI)

The essential facility doctrine lies at the core of telecoms regulation since its very first steps in the United States and in the European Union. Later, the doctrine spread around the world and currently stands as a key pillar of the liberalization ... Keywords: Access policy, Broadband, Competition, Essential facilities, Next generation networks, Regulation, Telecommunications

Andrea Renda

2010-02-01T23:59:59.000Z

178

Maintaining a Technology-Neutral Approach to Hydrogen Production Process Development through Conceptual Design of the Next Generation Nuclear Plant  

DOE Green Energy (OSTI)

The Next Generation Nuclear Plant (NGNP) project was authorized in the Energy Policy Act of 2005 (EPAct), tasking the U.S. Department of Energy (DOE) with demonstrating High Temperature Gas-Cooled Reactor (HTGR) technology. The demonstration is to include the technical, licensing, operational, and commercial viability of HTGR technology for the production of electricity and hydrogen. The Nuclear Hydrogen Initiative (NHI), a component of the DOE Hydrogen Program managed by the Office of Nuclear Energy, is also investigating multiple approaches to cost effective hydrogen production from nuclear energy. The objective of NHI is development of the technology and information basis for a future decision on commercial viability. The initiatives are clearly intertwined. While the objectives of NGNP and NHI are generally consistent, NGNP has progressed to the project definition phase and the project plan has matured. Multiple process applications for the NGNP require process heat, electricity and hydrogen in varied combinations and sizes. Coupling these processes to the reactor in multiple configurations adds complexity to the design, licensing and demonstration of both the reactor and the hydrogen production process. Commercial viability of hydrogen production may depend on the specific application and heat transport configuration. A component test facility (CTF) is planned by the NGNP to support testing and demonstration of NGNP systems, including those for hydrogen production, in multiple configurations. Engineering-scale demonstrations in the CTF are expected to start in 2012 to support scheduled design and licensing activities leading to subsequent construction and operation. Engineering-scale demonstrations planned by NHI are expected to start at least two years later. Reconciliation of these schedules is recommended to successfully complete both initiatives. Hence, closer and earlier integration of hydrogen process development and heat transport systems is sensible. For integration purposes, an analysis comparing the design, cost and schedule impact of maintaining a technology neutral approach through conceptual design or making an early hydrogen process technology selection was performed. Early selection does not specifically eliminate a technology, but rather selects the first hydrogen technology for demonstration. A systems-engineering approach was taken to define decision-making criteria for selecting a hydrogen technology. The relative technical, cost and schedule risks of each approach were analyzed and risk mitigation strategies were recommended, including provisions to maintain close collaboration with the NHI. The results of these analyses are presented here.

Michael W. Patterson

2008-05-01T23:59:59.000Z

179

Factors Maintaining the Zonally Asymmetric Precipitation Distribution and Low-Level Flow in the Tropics of an Atmospheric General Circulation Model: Diagnostic Studies  

Science Conference Proceedings (OSTI)

The roles played by the large-scale motion induced by vertical diffusion of heat from the lower boundary and condensational heating due to deep convection in maintaining the precipitation zones in the Tropics of an atmospheric general circulation ...

David G. Dewitt; Edwin K. Schneider; Anandu D. Vernekar

1996-08-01T23:59:59.000Z

180

Minimizing Failures While Maintaining Efficiency of Complex Interactive Networks and Systems: EPRI/DoD Complex Interactive Networks/ Systems Initiative; First Annual Report  

Science Conference Proceedings (OSTI)

This is the first annual report from the EPRI/DOD Complex Interactive Networks/Systems Initiative. The report describes research progress in minimizing failures while maintaining efficiency of complex interactive networks and systems.

2000-05-26T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Quantification of Hungry Horse Reservoir Water Levels Needed to Maintain or Enhance Reservoir Fisheries, 1985 Annual Report.  

Science Conference Proceedings (OSTI)

The Pacific Northwest Electric Power Planning and Conservation Act, passed in 1980 by Congress, has provided a mechanism which integrates and provides for stable energy planning in the Pacific Northwest. The Act created the Northwest Power Planning Council and charged the Council with developing a comprehensive fish and wildlife program to protect and enhance fish and wildlife impacted by hydroelectric development in the Columbia River Basin. Bonneville Power Administration (BPA) is one of the many agencies implementing the Council's program. The Hungry Horse Reservoir (HHR) study is part of the Council's program. This study proposes to quantify seasonal water levels needed to maintain or enhance principal gamefish species in Hungry Horse Reservoir. The specific study objectives are: (1) Quantify the amount of reservoir habitat available at different water level elevations; (2) Estimate recruitment of westslope cutthroat trout juveniles from important spawning and nursery areas; (3) Determine the abundance, growth, distribution and use of available habitat by major game species in the reservoir; (4) Determine the abundance and availability of fish food organisms in the reservoir; (5) Quantify the seasonal use of available food items by major fish species; (6) Develop relationships between reservoir drawdown and reservoir habitat use by fish and fish food organisms; and (7) Estimate the impact of reservoir operation on major gamefish species.

May, Bruce

1986-06-01T23:59:59.000Z

182

Reliability and maintainability study of select solar-energy-system components in the National Solar Data Network. Final subcontract report  

Science Conference Proceedings (OSTI)

This study reports on the reliability and maintainability of select solar energy system components evaluated in 16 solar heating and cooling systems over a one-year period. The systems evaluated were instrumented sites from the National Solar Data Network (NSDN). A complete description and system schematic for each site is provided. The study period was generally between October 1981 to October 1982. The report provides quantitative R and M data (e.g., Failure Rate and Mean Time Between Failures) on pumps, motors and fans from the selected NSDN sites, along with conclusions and recommendations based on comparative data for other components. In summary, pumps, valves, and heat exchangers in solar heating and cooling (SHAC) systems appear to be very reliable and show failure rates comparable to other mechanical system applications. Control systems typically used in SHAC systems appear to be the least reliable but still fall within the range of failures exhibited by other mechanical systems. Evidence suggests that piping leaks in SHAC systems occur at three times the rate of other mechanical systems. Recommendations are provided on other areas of research necessary to determine the useful life of SHAC system components. Finally, an appendix to this report describes actual failures encountered in the 16 systems evaluated.

Kendall, P.W.; Logee, T.L.; Raymond, M.G.

1983-06-01T23:59:59.000Z

183

An Improved Method for Estimating the Wind Power Density Distribution Function  

Science Conference Proceedings (OSTI)

The wind power density (WPD) distribution curve is essential for wind power assessment and wind turbine engineering. The usual practice of estimating this curve from wind speed data is to first estimate the wind speed probability density function ...

Mark L. Morrissey; Werner E. Cook; J. Scott Greene

2010-07-01T23:59:59.000Z

184

Structure of the cytoplasmic domain of Yersinia pestis YscD, an essential component of the type III secretion system  

Science Conference Proceedings (OSTI)

The Yersinia pestis YscD protein is an essential component of the type III secretion system. YscD consists of an N-terminal cytoplasmic domain (residues 1-121), a transmembrane linker (122-142) and a large periplasmic domain (143-419). Both the cytoplasmic and the periplasmic domains are required for the assembly of the type III secretion system. Here, the structure of the YscD cytoplasmic domain solved by SAD phasing is presented. Although the three-dimensional structure is similar to those of forkhead-associated (FHA) domains, comparison with the structures of canonical FHA domains revealed that the cytoplasmic domain of YscD lacks the conserved residues that are required for binding phosphothreonine and is therefore unlikely to function as a true FHA domain.

Lountos, George T.; Tropea, Joseph E.; Waugh, David S. (SAIC); (NCI)

2012-09-17T23:59:59.000Z

185

Waste and Encapsulation Storage Facility (WESF) Essential and Support Drawing List  

Science Conference Proceedings (OSTI)

The drawings identified in this document will comprise the Waste Encapsulation and Storage Facility essential and support drawing list. This list will replace drawings identified as the ''WESF Essential and support drawing list''. Additionally, this document will follow the applicable requirements of HNF-PRO-242 ''Engineering Drawing Requirements'' and FSP-WESF-001, Section EN-1 ''Documenting Engineering Changes''. An essential drawing is defined as an engineering drawing identified by the facility staff as necessary to directly support the safe operation or maintenance of the facility. A support drawing is defined as a drawing identified by the facility staff that further describes the design details of structures, systems, or components shown on essential drawings or is frequently used by the support staff.

SHANNON, W.R.

1999-08-31T23:59:59.000Z

186

Design criteria document, electrical system, K-Basin essential systems recovery, Project W-405  

Science Conference Proceedings (OSTI)

This Design Criteria Document provides the criteria for design and construction of electrical system modifications for 100K Area that are essential to protect the safe operation and storage of spent nuclear fuel in the K-Basin facilities.

Hoyle, J.R.

1994-12-12T23:59:59.000Z

187

Roles for Cardiac MyBP-C in Maintaining Myofilament Lattice Rigidity and Prolonging Myosin Cross-Bridge Lifetime  

Science Conference Proceedings (OSTI)

We investigated the influence of cardiac myosin binding protein-C (cMyBP-C) and its constitutively unphosphorylated status on the radial and longitudinal stiffnesses of the myofilament lattice in chemically skinned myocardial strips of the following mouse models: nontransgenic (NTG), effective null for cMyBP-C (t/t), wild-type cMyBP-C expressed into t/t (WT{sub t/t}), and constitutively unphosphorylated cMyBP-C (AllP{sub -t/t}). We found that the absence of cMyBP-C in the t/t and the unphosphorylated cMyBP-C in the AllP{sub -t/t} resulted in a compressible cardiac myofilament lattice induced by rigor not observed in the NTG and WT{sub t/t}. These results suggest that the presence and phosphorylation of the N-terminus of cMyBP-C provides structural support and radial rigidity to the myofilament lattice. Examination of myofilament longitudinal stiffness under rigor conditions demonstrated a significant reduction in cross-bridge-dependent stiffness in the t/t compared with NTG controls, but not in the AllP{sub -t/t} compared with WT{sub t/t} controls. The absence of cMyBP-C in the t/t and the unphosphorylated cMyBP-C in the AllP{sub -t/t} both resulted in a shorter myosin cross-bridge lifetime when myosin isoform was controlled. These data collectively suggest that cMyBP-C provides radial rigidity to the myofilament lattice through the N-terminus, and that disruption of the phosphorylation of cMyBP-C is sufficient to abolish this structural role of the N-terminus and shorten cross-bridge lifetime. Although the presence of cMyBP-C also provides longitudinal rigidity, phosphorylation of the N-terminus is not necessary to maintain longitudinal rigidity of the lattice, in contrast to radial rigidity.

Palmer, B.M.; Sadayappan, S.; Wang, Y.; Weith, A.E.; Previs, M.J.; Bekyarova, T.; Irving, T.C.; Robbins, J.; Maughan, D.W. (Vermont)

2011-10-06T23:59:59.000Z

188

An Assessment of Industry Data Related to Essential Variables for Fusing High Density Polyethylene Pipe  

Science Conference Proceedings (OSTI)

The Nuclear Regulatory Commission has expressed concern about the essential variables used for fusing safety-related nuclear power plant piping systems constructed of high density polyethylene (HDPE). The essential variables detailed in the American Society of Mechanical Engineers (ASME) Code Case N-755-1, Use of Polyethylene (PE) Plastic Pipe, were considered to be incomplete. In addition, there were questions about using data in the Plastic Pipe Institute (PPI) report TR-33 ...

2013-07-31T23:59:59.000Z

189

Functional Integration on Constrained Function Spaces  

E-Print Network (OSTI)

Analogy with Bayesian inference is used to study constrained physical systems within the context of functional integration. Since functional integrals probe function spaces, both kinematical and dynamical constraints are treated simultaneously and on equal footing. Following the analogy, functional counterparts of conditional and conjugate probability distributions are introduced for integrators and then applied to some well-known examples of constrained functional integrals. The analysis leads to some new functional integration tools and methods. These are utilized to construct a model of the prime counting function as a constrained gamma process.

J. LaChapelle

2012-12-03T23:59:59.000Z

190

Year 2 Report: Protein Function Prediction Platform  

SciTech Connect

Upon completion of our second year of development in a 3-year development cycle, we have completed a prototype protein structure-function annotation and function prediction system: Protein Function Prediction (PFP) platform (v.0.5). We have met our milestones for Years 1 and 2 and are positioned to continue development in completion of our original statement of work, or a reasonable modification thereof, in service to DTRA Programs involved in diagnostics and medical countermeasures research and development. The PFP platform is a multi-scale computational modeling system for protein structure-function annotation and function prediction. As of this writing, PFP is the only existing fully automated, high-throughput, multi-scale modeling, whole-proteome annotation platform, and represents a significant advance in the field of genome annotation (Fig. 1). PFP modules perform protein functional annotations at the sequence, systems biology, protein structure, and atomistic levels of biological complexity (Fig. 2). Because these approaches provide orthogonal means of characterizing proteins and suggesting protein function, PFP processing maximizes the protein functional information that can currently be gained by computational means. Comprehensive annotation of pathogen genomes is essential for bio-defense applications in pathogen characterization, threat assessment, and medical countermeasure design and development in that it can short-cut the time and effort required to select and characterize protein biomarkers.

Zhou, C E

2012-04-27T23:59:59.000Z

191

Office of Safety Training Operations - Mission and Functions  

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

Safety Training Operations Safety Training Operations The Office of Safety Training Operations supports the mission of the National Training Center (NTC) by providing competency-based safety training for professionals within the Department necessary to maintain the technical qualifications and professional skill base. Safety Training Operations offers training in the competencies outlined in the Technical Qualification Program Functional Area Qualification Standards. Please click on this link to go to the National Training Center. Mission The mission of the Office of Safety Training Operations is to develop and deliver safety training courses to ensure the technical proficiency necessary to maintain a qualified workforce within the Department of Energy (DOE)/National Nuclear Security Administration (NNSA). Safety Training Operations assists in maintaining the proficiency of the DOE/NNSA safety personnel through standardized safety training, education, and professional development services at the National Training Center.

192

Emergency Support Function #12 … Energy Annex  

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

ESF Coordinator: Department of Energy Primary Agency: Department of Energy Support Agencies: Department of Agriculture Department of Commerce Department of Defense Department of Homeland Security Department of the Interior Department of Labor Department of State Department of Transportation Environmental Protection Agency Nuclear Regulatory Commission Tennessee Valley Authority INTRODUCTION Purpose Emergency Support Function (ESF) #12 - Energy facilitates the reestablishment of damaged energy systems and components when activated by the Secretary of Homeland Security for incidents requiring a coordinated Federal response under the Stafford Act. The term "energy" includes producing, storing, refining, transporting, generating, transmitting, conserving, building, distributing, maintaining, and controlling energy

193

Instructions for reviewing/revising the Instructor Workloads in UDSIS Enter UDSIS-go to Curriculum Management>Schedule of Classes>Maintain Schedule of  

E-Print Network (OSTI)

Management>Schedule of Classes>Maintain Schedule of Classes Enter the term, subject area and catalog numberInstructions for reviewing/revising the Instructor Workloads in UDSIS Enter UDSIS- go to Curriculum ­ click on Search. Go to the Meetings tab and confirm that the faculty ID listed in the "Instructors

Zhang, Shangyou

194

Quantification of Libby Reservoir Levels Needed to Maintain or Enhance Reservoir Fisheries, 1990-1994 Investigations of Fish Entrainment Through Libby Dam.  

DOE Green Energy (OSTI)

We investigated fish entrainment through Libby Dam from December 1990 to June 1994. This study was one portion of the effort by the Montana Department of Fish, Wildlife and Parks to quantify Libby Dam operations necessary to maintain or enhance Libby Reservoir fisheries.

Skaar, Don

1996-01-01T23:59:59.000Z

195

Essential Boundary Conditions with Straight C1 Finite Elements in Curved Domains  

SciTech Connect

The implementation of essential boundary conditions in C1 finite element analysis requires proper treatment of both the boundary conditions on second-order differentials of the solution and the curvature of the domain boundary. A method for the imposition of essential boundary conditions using straight elements (where the elements are not deformed to approximate a curved domain) is described. It is shown that pre-multiplication of the matrix equation by the local rotation matrix at each boundary node is not the optimal transformation. The uniquely optimal transformation is found, which does not take the form of a similarity transformation due to the non-orthogonality of the transformation to curved coordinates.

N.M. Ferraro, S.C. Jardin, X. Luo

2010-02-19T23:59:59.000Z

196

Emergency Support Function #12; Energy Annex | Department of Energy  

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

Emergency Support Function #12; Energy Annex Emergency Support Function #12; Energy Annex Emergency Support Function #12; Energy Annex Emergency Support Function (ESF) #12 - Energy is intended to facilitate the restoration of damaged energy systems and components when activated by the Secretary of Homeland Security for incidents requiring a coordinated Federal response. Under Department of Energy (DOE) leadership, ESF #12 is an integral part of the larger DOE responsibility of maintaining continuous and reliable energy supplies for the United States through preventive measures and restoration and recovery actions. Emergency Support Function #12; Energy Annex More Documents & Publications Emergency Support Function #12; Energy Annex - Support Agencies Special Report: IG-0847 Energy Emergency Preparedness Quarterly Vol 1, Issue 1 - January 201

197

Functional differentiation and alveolar morphogenesis of primary mammary cultures on reconstituted basement membrane  

SciTech Connect

An essential feature of mammary gland differentiation during pregnancy is the formation of alveoli composed of polarized epithelial cells, which, under the influence of lactogenic hormones, secrete vectorially and sequester milk proteins. Previous culture studies have described either organization of cells polarized towards lumina containing little or no demonstrable tissue-specific protein, or establishment of functional secretory cells exhibiting little or no glandular architecture. In this paper, we report that tissue-specific vectorial secretion coincides with the formation of functional alveoli-like structures by primary mammary epithelial cells cultured on a reconstituted basement membrane matrix (derived from Engelbreth-Holm-Swarm murine tumour). Morphogenesis of these unique three-dimensional structures was initiated by cell-directed remodelling of the exogenous matrix leading to reorganization of cells into matrixensheathed aggregates by 24 h after plating. The aggregates subsequently cavitated, so that by day 6 the cells were organized into hollow spheres in which apical cell surfaces faced lumina sealed by tight junctions and basal surfaces were surrounded by a distinct basal lamina. The profiles of proteins secreted into the apical (luminal) and basal (medium) compartments indicated that these alveoli-like structures were capable of an appreciable amount of vectorial secretion. Immunoprecipitation with a broad spectrum milk antiserum showed that more than 80% of caseins were secreted into the lumina, whereas iron-binding proteins (both lactoferrin and transferrin) were present in comparable amounts in each compartment. Thus, these mammary cells established protein targeting pathways directing milk-specific proteins to the luminal compartment. A time course monitoring secretory activity demonstrated that establishment of tissue-specific vectorial secretion and increased total and milk protein secretion coincided with functional alveolar-like multicellular architecture. This culture system is unique among models of epithelial cell polarity in that it demonstrates several aspects of epithelial cell polarization: vectorial secretion, apical junctions, a sequestered compartment and formation of a basal lamina. These lumina-containing structures therefore reproduce the dual role of mammary epithelia to secrete vectorially and to sequester milk proteins. Thus, in addition to maintaining tissue-specific cytodifferentiation and function, a basement membrane promotes the expression of tissue-like morphogenesis.

BARCELLOS-HOFF, M. H; AGGELER, J.; RAM, T. G; BISSELL, M. J

1989-02-01T23:59:59.000Z

198

Abstract-Homing and navigation capabilities are essential for many Autonomous Underwater Vehicle  

E-Print Network (OSTI)

Abstract- Homing and navigation capabilities are essential for many Autonomous Underwater Vehicle, speed bias and underwater currents affect dead-reckoning measurements. All operation need to have INTRODUCTION Actually, there is a real challenge on application of Autonomous Underwater Vehicle, particularly

Paris-Sud XI, Université de

199

This issue of Briefings focuses on one essential element of all airports. Navigation  

E-Print Network (OSTI)

This issue of Briefings focuses on one essential element of all airports. Navigation aids navigational facilities that provide combined azimuth and glide slope guidance to a runway (pre- cision) and those that do not (nonprecision). Nonprecision refers to facilities without a glide slope and does

Minnesota, University of

200

Abrupt structural transitions involving functionally optimal networks  

E-Print Network (OSTI)

We show analytically that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. Our results offer an explanation as to why such diverse sets of network structures arise in Nature (e.g. fungi) under essentially the same environmental conditions. As a by-product of this work, we introduce a novel renormalization scheme involving `cost motifs' which describes analytically the average shortest path across multiple-ring-and-hub networks.

Jarrett, T C; Fricker, M; Johnson, N F; Jarrett, Timothy C.; Ashton, Douglas J.; Fricker, Mark; Johnson, Neil F.

2005-01-01T23:59:59.000Z

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


201

Abrupt structural transitions involving functionally optimal networks  

E-Print Network (OSTI)

We show analytically that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. Our results offer an explanation as to why such diverse sets of network structures arise in Nature (e.g. fungi) under essentially the same environmental conditions. As a by-product of this work, we introduce a novel renormalization scheme involving `cost motifs' which describes analytically the average shortest path across multiple-ring-and-hub networks.

Timothy C. Jarrett; Douglas J. Ashton; Mark Fricker; Neil F. Johnson

2005-08-31T23:59:59.000Z

202

Functional Mellin Transforms  

E-Print Network (OSTI)

Functional integrals are defined in terms of locally compact topological groups and their associated Banach-valued Haar integrals. This approach generalizes the functional integral scheme of Cartier and DeWitt-Morette. The definition allows a construction of functional Mellin transforms. In turn, the functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored. As an application, we construct a functional Mellin representation of the quantum evolution operator.

J. LaChapelle

2013-08-05T23:59:59.000Z

203

Functional Foods Package  

Science Conference Proceedings (OSTI)

Contains five (5) titles regarding functional foods. Functional Foods Package Health - Nutrition - Biochemistry Value Packages Nutrition Health Food Science Biochemistry This Value Package includes: ...

204

The Substellar Mass Function: A Bayesian Approach  

E-Print Network (OSTI)

We report our efforts to constrain the form of the low-mass star and brown dwarf mass function via Bayesian inference. Recent surveys of M, L, and T dwarfs in the local solar neighborhood are an essential component of our study. Uncertainties in the age distribution of local field stars make reliable inference complicated. We adopt a wide range of plausible assumptions about the rate of galactic star formation and show that their deviations from a uniform rate produce little effect on the resulting luminosity function for a given mass function. We use a Bayesian statistical formalism to evaluate the probability of commonly used mass functions in light of recent discoveries. We consider three functional forms of the mass function, include a two-segment power law, a single power law with a low-mass cutoff, and a log-normal distribution. Our results show that, at a 60% confidence level, the power-law index, $\\alpha$, for the low-mass arm of a two-segment power law has a value between -0.5 and 0.5 for objects with masses between $0.04 M_{\\odot}$ and $0.10 M_{\\odot}$. The best-fit index is $\\alpha = 0.3\\pm0.6$ at the 60% confidence level for a single-segment mass function. Current data require this function extend to at least $0.05 M_{\\odot}$ with no restrictions placed on a lower mass cutoff. Inferences of the parameter values for a log-normal mass function are virtually unaffected by recent estimates of the local space density of L and T dwarfs. We find no preference among these three forms using this method. We discuss current and future capabilities that may eventually discriminate between mass-function models and refine estimates of their associated parameter values.

P. R. Allen; D. W. Koerner; I. N. Reid; D. E. Trilling

2005-02-09T23:59:59.000Z

205

Integrating complex ecological information to develop a management plan for Chinese tallow (Sapium sebiferum L. Roxb.) in south Georgia.  

E-Print Network (OSTI)

??Managing pernicious invasive plant species is an essential component of maintaining biodiversity and restoring natural ecosystem structure and function. Chinese tallow (Sapium sebiferum L. Roxb.) (more)

McCormick, Cheryl Marie

2007-01-01T23:59:59.000Z

206

Truck Essential Power Systems Efficiency Improvements for Medium-Duty Trucks  

DOE Green Energy (OSTI)

With a variety of hybrid vehicles available in the passenger car market, electric technologies and components of that scale are becoming readily available. Commercial vehicle segments have lagged behind passenger car markets, leaving opportunities for component and system development. Escalating fuel prices impact all markets and provide motivation for OEMs, suppliers, customers, and end-users to seek new techniques and technologies to deliver reduced fuel consumption. The research presented here specifically targets the medium-duty (MD), Class 4-7, truck market with technologies aimed at reducing fuel consumption. These technologies could facilitate not only idle, but also parasitic load reductions. The development efforts here build upon the success of the More Electric Truck (MET) demonstration program at Caterpillar Inc. Employing a variety of electric accessories, the MET demonstrated the improvement seen with such technologies on a Class 8 truck. The Truck Essential Power Systems Efficiency Improvements for Medium-Duty Trucks (TEPS) team scaled the concepts and successes of MET to a MD chassis. The team designed an integrated starter/generator (ISG) package and energy storage system (ESS), explored ways to replace belt and gear-driven accessory systems, and developed supervisory control algorithms to direct the usage of the generated electricity and system behavior on the vehicle. All of these systems needed to fit within the footprint of a MD vehicle and be compatible with the existing conventional systems to the largest extent possible. The overall goal of this effort was to demonstrate a reduction in fuel consumption across the drive cycle, including during idle periods, through truck electrification. Furthermore, the team sought to evaluate the benefits of charging the energy storage system during vehicle braking. The vehicle features an array of electric accessories facilitating on-demand, variable actuation. Removal of these accessories from the belt or geartrain of the engine yields efficiency improvements for the engine while freeing those accessories to perform at their individual peak efficiencies to meet instantaneous demand. The net result is a systems approach to fuel usage optimization. Unique control algorithms were specifically developed to capitalize on the flexibility afforded by the TEPS architecture. Moreover, the TEPS truck technology mixture exhibits a means to supplant current accessory power sources such as on-board or trailer-mounted gasoline-powered generators or air compressors. Such functionality further enhances the value of the electric systems beyond the fuel savings alone. To demonstrate the fuel economy improvement wrought via the TEPS components, vehicle fuel economy testing was performed on the nearly stock (baseline) truck and the TEPS truck. Table 1 illustrates the fuel economy gains produced by the TEPS truck electrification. While the fuel economy results shown in Table 1 do reflect specific test conditions, they show that electrification of accessory hardware can yield significant fuel savings. In this case, the savings equated to a 15 percent reduction in fuel consumption during controlled on-road testing. Truck electrification allows engine shutdown during idle conditions as well as independent on-demand actuation of accessory systems. In some cases, independent actuation may even include lack of operation, a feature not always present in mechanically driven components. This combination of attributes allows significant improvements in system efficiency and the fuel economy improvements demonstrated by the TEPS team.

Larry Slone; Jeffery Birkel

2007-12-31T23:59:59.000Z

207

Functional Properties Staff  

Science Conference Proceedings (OSTI)

... Methods Group Staff; Materials Measurement Science Division Staff Directory; MML Organization. Contact. Functional Properties ...

2013-04-30T23:59:59.000Z

208

Transportation Organization and Functions  

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

Office of Packaging and Transportation list of organizations and functions, with a list of acronyms.

209

Carotenoids & Retinoids; Molecular Aspects and Health IssuesChapter 3 The Essential Role of Vitamin A in Signal Transduction  

Science Conference Proceedings (OSTI)

Carotenoids & Retinoids; Molecular Aspects and Health Issues Chapter 3 The Essential Role of Vitamin A in Signal Transduction Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry Press ...

210

Evaluating the effects of essential oils and condensed tannin on fermentation and methane production under in vitro conditions.  

E-Print Network (OSTI)

??The effects of essential oils (EO) and condensed tannin (CT) on methane production and fermentation were evaluated under in vitro conditions. Experiment one screened the (more)

Pinski, Brittany

2013-01-01T23:59:59.000Z

211

Nutrition and Biochemistry of PhospholipidsChapter 17 Essential Polyunsaturated Fatty Acids in Mothers and Their Neonates  

Science Conference Proceedings (OSTI)

Nutrition and Biochemistry of Phospholipids Chapter 17 Essential Polyunsaturated Fatty Acids in Mothers and Their Neonates Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry AOCS Press Downloadable

212

Fluxes in ;Free; and Total Zinc Are Essential for Progression of Intraerythrocytic Stages of Plasmodium falciparum  

Science Conference Proceedings (OSTI)

Dynamic fluxes in the concentration of ions and small molecules are fundamental features of cell signaling, differentiation, and development. Similar roles for fluxes in transition metal concentrations are less well established. Here, we show that massive zinc fluxes are essential in the infection cycle of an intracellular eukaryotic parasite. Using single-cell quantitative imaging, we show that growth of the blood-stage Plasmodium falciparum parasite requires acquisition of 30 million zinc atoms per erythrocyte before host cell rupture, corresponding to a 400% increase in total zinc concentration. Zinc accumulates in a freely available form in parasitophorous compartments outside the food vacuole, including mitochondria. Restriction of zinc availability via small molecule treatment causes a drop in mitochondrial membrane potential and severely inhibits parasite growth. Thus, extraordinary zinc acquisition and trafficking are essential for parasite development.

Marvin, Rebecca G.; Wolford, Janet L.; Kidd, Matthew J.; Murphy, Sean; Ward, Jesse; Que, Emily L.; Mayer, Meghan L.; Penner-Hahn, James E.; Haldar, Kasturi; O; Halloran, Thomas V. (Michigan); (UWASH); (NWU); (Notre)

2012-10-23T23:59:59.000Z

213

Welding and Repair Technology Center: Essential and Emergency Service Water System Issues  

Science Conference Proceedings (OSTI)

Because of the numerous ASME Code and Regulatory (Nuclear Regulatory Commission) documents addressing operability and repair of through-wall leakage in class 2 and 3 systems, inconsistencies exist in their interpretation and application. This report is intended to summarize and clarify the current Code and Regulatory requirements and provisions applicable to operability and repair of essential and emergency service water systems with leakage through the pressure boundary.

2010-10-29T23:59:59.000Z

214

Tennessee Valley Authority/Bristol Tennessee Essential Services Smart Water Heater Pilot  

Science Conference Proceedings (OSTI)

This report describes the results and analysis of electric consumption (demand), demographic, and customer satisfaction data collected from Smart Water Heater Pilot participants in summer 2009. The demand response control and data collection are implemented using Carina Technology Inc.'s Water Heater Information Solution for Energy (WISE) units installed at 117 residential sites within Bristol Tennessee Essential Services operating territory. The results from this study provide insight into the data col...

2010-02-03T23:59:59.000Z

215

Design criteria document, Fire Protection Task, K Basin Essential Systems Recovery, Project W-405  

Science Conference Proceedings (OSTI)

The K Basin were constructed in the early 1950`s with a 20 year design life. The K Basins are currently in their third design life and are serving as a near term storage facility for irradiated N Reactor fuel until an interim fuel storage solution can be implemented. In April 1994, Project W-405, K Basin Essential Systems Recovery, was established to address (among other things) the immediate fire protection needs of the 100K Area. A Fire Barrier Evaluation was performed for the wall between the active and inactive areas of the 105KE and 105KW buildings. This evaluation concludes that the wall is capable of being upgraded to provide an equivalent level of fire resistance as a qualified barrier having a fire resistance rating of 2 hours. The Fire Protection Task is one of four separate Tasks included within the scope of Project W405, K Basin Essential systems Recovery. The other three Tasks are the Water Distribution System Task, the Electrical System Task, and the Maintenance Shop/Support Facility Task. The purpose of Project W-405`s Fire Protection Task is to correct Life Safety Code (NFPA 101) non-compliances and to provide fire protection features in Buildings 105KE, 105KW and 190KE that are essential for assuring the safe operation and storage of spent nuclear fuel at the 100K Area Facilities` Irradiated Fuel Storage Basins (K Basins).

Johnson, B.H.

1994-12-14T23:59:59.000Z

216

Symmetric Boolean functions  

E-Print Network (OSTI)

AbstractWe present an extensive study of symmetric Boolean functions, especially of their cryptographic properties. Our main result establishes the link between the periodicity of the simplified value vector of a symmetric Boolean function and its degree. Besides the reduction of the amount of memory required for representing a symmetric function, this property has some consequences from a cryptographic point of view. For instance, it leads to a new general bound on the order of resiliency of symmetric functions, which improves Siegenthalers bound. The propagation characteristics of these functions are also addressed and the algebraic normal forms of all their derivatives are given. We finally detail the characteristics of the symmetric functions of degree at most 7, for any number of variables. Most notably, we determine all balanced symmetric functions of degree less than or equal to 7. Index TermsBoolean functions, correlation immunity, degree, derivation, propagation criterion, resiliency, symmetric functions. I.

Anne Canteaut; Marion Videau

2004-01-01T23:59:59.000Z

217

Can ASHRAE Standard 62-1989 Requirements be Satisfied while Maintaining Moisture Control using Stock HVAC Equipment in Hot, Humid Climates?  

E-Print Network (OSTI)

Outdoor air intake rates are studied to determine their impacts on moisture control in buildings, especially in hot, humid climates. Key impacts of outdoor air intake rates can be readily modeled and studied using computer simulations of building energy costs. Increased ventilation rates create real capital and operating costs for building owners and operators, with implications beyond energy costs relating to increased ventilation requirements. In hot, humid climates, increased ventilation rates increase latent loads more than sensible loads, requiring lower sensible heat ratios. Stock HVAC package units and split systems are not available with the requisite sensible heat ratios, and cannot maintain moisture control in small commercial buildings without costly modifications.

Turner, S. C.

1996-01-01T23:59:59.000Z

218

Selecting, Using, and Maintaining Trademarks  

Science Conference Proceedings (OSTI)

Well-known marks in this category include "Kodak," "Exxon," and "Xerox." Another type of mark is an arbitrary mark. Here, a word in common use is applied to a...

219

Can CAPE Maintain Polar Lows?  

Science Conference Proceedings (OSTI)

A unique dataset of atmospheric observations over the Nordic Seas has been analyzed to investigate the role of convective available potential energy (CAPE) for the energetics of polar lows. The observations were made during the flight campaign of ...

Torsten Linders; yvind Saetra

2010-08-01T23:59:59.000Z

220

Maintaining islet quality during culture  

E-Print Network (OSTI)

Islet transplantation has become a promising treatment for type I diabetes mellitus due to recent success since the development of the Edmonton Protocol. Islet culture prior to transplantation is standard practice in most ...

Rappel, Michael J

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

The Role and Function of the Safety Committee  

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

AND FUNCTION OF THE AND FUNCTION OF THE SAFETY COMMITTEE Diane Zerbe, MHS Johns Hopkins University Bloomberg School of Public Health dzerbe@jhsph.edu (410) 955-0423 Purpose The committee is responsible to: * Participate in the development of safety procedures and hazard assessments * Complete work area self-inspections * Monitor the effectiveness of the corporate safety programs * Make recommendations regarding safety program improvements Maintain safety records Complete accident investigations Establish (but not implement) incentive and disciplinary policy Establish and promote training program Gather employee feedback and suggestions 1 Organization( example) Committee membership shall consist of equal representation of every work force division. No one person or group

222

Comparison of vetiver root essential oils from cleansed (bacteria-and fungus-free) vs. non-cleansed  

E-Print Network (OSTI)

tissue culture derived and natural plants for both genotypes. Although oil yields differed, this may cultivars used for commercial essential oil production are `Sunshine' or very similar cultivars. This workComparison of vetiver root essential oils from cleansed (bacteria- and fungus-free) vs. non

Adams, Robert P.

223

Functional Logic Overloading  

E-Print Network (OSTI)

Functional logic overloading is a novel approach to userdefined overloading that extends Haskell's concept of type classes in significant ways. Whereas type classes are conceptually predicates on types in standard Haskell, they are type functions in our approach. Thus, we can base type inference on the evaluation of functional logic programs. Functional logic programming provides a solid theoretical foundation for type functions and, at the same time, allows for programmable overloading resolution strategies by choosing di#erent evaluation strategies for functional logic programs. Type inference with type functions is an instance of type inference with constrained types, where the underlying constraint system is defined by a functional logic program. We have designed a variant of Haskell which supports our approach to overloading, and implemented a prototype frontend for the language.

Matthias Neubauer Peter; Peter Thiemann; Universitt Freiburg

2001-01-01T23:59:59.000Z

224

delta-Approximable Functions  

Science Conference Proceedings (OSTI)

In this paper we study several notions of approximability of functions in the framework of the BSS model. Denoting with M the function computed by a BSS machine M when its comparisons are against - rather than 0, we study ...

Charles Meyssonnier; Paolo Boldi; Sebastiano Vigna

2000-09-01T23:59:59.000Z

225

Functional Programming and Security  

E-Print Network (OSTI)

This paper analyses the security contribution of typical functional-language features by examining them in the light of accepted information security principles. Imperative and functional code are compared to illustrate various cases. In conclusion, there may be an excellent case for the use of functional languages on the grounds of better security; however, empirical research should be done to validate this possibility.

Motara, Yusuf Moosa

2012-01-01T23:59:59.000Z

226

Neutrino-Matter Interaction Rates in Supernovae: The Essential Microphysics of Core Collapse  

E-Print Network (OSTI)

Neutrino-matter interaction rates are central to the core collapse phenomenon and, perhaps, to the viability of the mechanism of core-collapse supernova explosions. In this paper we catalog and discuss the major neutrino scattering, absorption, and production processes that together influence the outcome of core collapse and the cooling of protoneutron stars. These are the essential inputs into the codes used to simulate the supernova phenomenon and an understanding of these processes is a prerequisite to continuing progress in supernova theory.

Adam Burrows; Todd A. Thompson

2002-11-18T23:59:59.000Z

227

Emergency Support Function #12; Energy Annex  

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

January 2008 ESF #12 - Energy Annex ESF #12-1 January 2008 ESF #12 - Energy Annex ESF #12-1 ESF Coordinator: Department of Energy Primary Agency: Department of Energy Support Agencies: Department of Agriculture Department of Commerce Department of Defense Department of Homeland Security Department of the Interior Department of Labor Department of State Department of Transportation Environmental Protection Agency Nuclear Regulatory Commission Tennessee Valley Authority INTRODUCTION Purpose Emergency Support Function (ESF) #12 - Energy is intended to facilitate the restoration of damaged energy systems and components when activated by the Secretary of Homeland Security for incidents requiring a coordinated Federal response. Under Department of Energy (DOE) leadership, ESF #12 is an integral part of the larger DOE responsibility of maintaining

228

Essential elements of modeling gas generation from well defined plutonium materials  

DOE Green Energy (OSTI)

Processing of excess plutonium oxide (and related) materials intended for long-term storage is addressed in DOE standard 3013-2000. The essential elements addressed by this standard are eliminating or reducing to an acceptable level the entities that lead to gas evolution and consequent pressurization of the intended storage container system. Based upon the need to adequately understand and quantify these relevant parameters we briefly describe the current scientific knowledge of gas evolution from such systems. These associated research efforts have included fundamental kinetic and thermodynamic studies of water interactions at actinide oxide surfaces, radiolytic reactions of adsorbed water, interfacial reactions of hydrogen and oxygen, and radiolytic helium production. Utilizing, where possible, experimental parameters for many of the aforementioned processes we have developed a mathematical model with a minimum number of essential components that successfully models gas generation from well-defined PuO{sub 2} materials with known amounts of deliberately added water. In this work we verify this model against real pressure versus time data (described at greater length in another manuscript in these conference proceedings) and subsequently assure the safety envelope of design criteria for both short- and long-term storage and transportation of these material classes. These modeling results predict pressures and gas phase mole fractions over well-defined DOE 3013 container test cases well in advance of actual long-term surveillance information and provide confidence in safe storage of plutonium oxide material classes.

Paffett, M. T. (Mark T.); Kelly, D. (Daniel)

2002-01-01T23:59:59.000Z

229

On the applicability of the minimal configured hierarchical fuzzy control and its relevance to function approximation  

Science Conference Proceedings (OSTI)

This paper presents an approach to minimal hierarchical fuzzy control systems design. It maintains the idea of distributing behaviors inside a fuzzy structure, while the minimal hierarchical fuzzy control is an effective procedure for dealing with systems ... Keywords: ANFIS, Behavioral decomposition, Control, Design, FIS, FLU, Function approximation, Hierarchical fuzzy systems, MCANHFLS, Methodology, RMSE, TSK

Taher M. Jelleli; Adel M. Alimi

2009-09-01T23:59:59.000Z

230

Quantification of Hungry Horse Reservoir Water Levels Needed to Maintain or Enhance Reservoir Fisheries; Methods and Data, 1983-1987 Summary Report.  

Science Conference Proceedings (OSTI)

The Hungry Horse Reservoir study is part of the Northwest Power Planning Council's resident fish and wildlife plan. The plan is responsible for mitigating damages to the fish and wildlife resources caused by hydroelectric development in the Columbia River Basin. The major goal of our study is to quantify seasonal water levels needed to maintain or enhance the reservoir fishery. This study began in May, 1983, and the initial phase will be completed July, 1988. This report summarizes limnological, fish abundance, fish distribution and fish food habits data collected from 1983 to 1988. The effect of reservoir operation upon fish habitat, fish food organisms and fish growth is discussed. 71 refs., 36 figs., 46 tabs.

May, Bruce; Michael, Gary; Wachsmuth, John (Montana Department of Fish, Wildlife and Parks, Kalispell, MT)

1988-06-01T23:59:59.000Z

231

Renormalization group functional equations  

SciTech Connect

Functional conjugation methods are used to analyze the global structure of various renormalization group trajectories and to gain insight into the interplay between continuous and discrete rescaling. With minimal assumptions, the methods produce continuous flows from step-scaling {sigma} functions and lead to exact functional relations for the local flow {beta} functions, whose solutions may have novel, exotic features, including multiple branches. As a result, fixed points of {sigma} are sometimes not true fixed points under continuous changes in scale and zeroes of {beta} do not necessarily signal fixed points of the flow but instead may only indicate turning points of the trajectories.

Curtright, Thomas L. [CERN, CH-1211 Geneva 23 (Switzerland); Department of Physics, University of Miami, Coral Gables, Florida 33124-8046 (United States); Zachos, Cosmas K. [High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439-4815 (United States)

2011-03-15T23:59:59.000Z

232

Renormalization group functional equations.  

SciTech Connect

Functional conjugation methods are used to analyze the global structure of various renormalization group trajectories and to gain insight into the interplay between continuous and discrete rescaling. With minimal assumptions, the methods produce continuous flows from step-scaling {sigma} functions and lead to exact functional relations for the local flow {beta} functions, whose solutions may have novel, exotic features, including multiple branches. As a result, fixed points of {sigma} are sometimes not true fixed points under continuous changes in scale and zeroes of {beta} do not necessarily signal fixed points of the flow but instead may only indicate turning points of the trajectories.

Curtright, T. L.; Zachos, C. K. (High Energy Physics); (Univ. of Miami)

2011-03-16T23:59:59.000Z

233

Early functionalization - CECM  

E-Print Network (OSTI)

Dec 24, 2003 ... The functionalization process is not restricted to linguistic ... initial benefits acquire a role in which they contribute to the safety of groups by...

234

Synthesis modulo recursive functions  

Science Conference Proceedings (OSTI)

We describe techniques for synthesis and verification of recursive functional programs over unbounded domains. Our techniques build on top of an algorithm for satisfiability modulo recursive functions, a framework for deductive synthesis, and complete ... Keywords: inductive learning, satisfiability modulo theories, software synthesis

Etienne Kneuss, Ivan Kuraj, Viktor Kuncak, Philippe Suter

2013-10-01T23:59:59.000Z

235

Function of proteins  

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

Function of proteins Function of proteins Name: Collins Location: N/A Country: N/A Date: N/A Question: What is the function of proteins in your body? Replies: Proteins have many functions. They serve as enzymatic catalysts, are used as transport molecules (hemoglobin transports oxygen) and storage molecules (iron is stored in the liver as a complex with the protein ferritin); they are used in movement (proteins are the major component of muscles); they are needed for mechanical support (skin and bone contain collagen-a fibrous protein); they mediate cell responses (rhodopsin is a protein in the eye which is used for vision); antibody proteins are needed for immune protection; control of growth and cell differentiation uses proteins (hormones). These are just a few examples of the many, many functions of proteins.

236

Essential Role in Modern Science William E. Johnston, ESnet Adviser and Senior Scientist  

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

Evolution of Research and Evolution of Research and Education Networks and their Essential Role in Modern Science William E. Johnston, ESnet Adviser and Senior Scientist Chin Guok, Evangelos Chaniotakis, Kevin Oberman, Eli Dart, Joe Metzger and Mike O'Conner, Core Engineering, Brian Tierney, Advanced Development, Mike Helm and Dhiva Muruganantham, Federated Trust Steve Cotter, Department Head wej@es.net, this talk is available at www.es.net Energy Sciences Network Lawrence Berkeley National Laboratory Networking for the Future of Science TERENA Networking Conference 2009 2 DOE Office of Science and ESnet - the ESnet Mission * The Office of Science (SC) is the single largest supporter of basic research in the physical sciences in the United States, providing more than 40 percent of total funding for US research programs in high-energy

237

Teaming/Subcontracting Essential to Small Business Success Presented by: Tiki Dixon  

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

Teaming/Subcontracting Teaming/Subcontracting Essential to Small Business Success Presented by: Tiki Dixon Vice President, Tetra Tech Dating Opportunities with Large Business * Blind date * Caught my eye * Formal introduction Right time, right place 2 Building a Relationship with Large Business * Talking to the right person * Expectations of the relationship * Focusing on core company capabilities * Investing in the relationship Where are we going? 3 Engagement to Each Other * Building on a trusting relationship * Proven interest in each other * Ready for next step Send out invitations 4 Will you Marry Me? * Dating was successful * Engagement was great * Ready for formal/ informal relationship Next step ... Prime Contractor 5 Tetra Tech Mentor/Protégé Agreements

238

Rheological properties essential for the atomization of coal water slurries (CWS)  

SciTech Connect

During the previous quarter, it was noted that understanding the rheology of polymeric additives used in enhancing the stability of the CWS was essential in meeting the project objectives. Thus, further review of the literature was carried out to gain information on the rheology of polymeric additives, particularly at high shear rates. Philippoff and Hess [1] reported the existence of four distinct flow regions in the behavior of flow curve analysis of polymer solutions (Figure 1). These regions are characterized by (1) A Newtonian Region; (2) A non-Newtonian pseudoplastic region; (3) A second Newtonian region at high shear rates 10[sup 5] to 10[sup 6] sec[sup [minus]1]; (4) and a region of steepening slope identified as the onset of turbulence. Efforts during this past quarter were therefore directed towards the study of high shear rheology of the CWS.

Ohene, F.

1992-01-01T23:59:59.000Z

239

DOE Office of Indian Energy Tribal Renewable Energy Project Development and Financing Essentials  

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

Tribal Renewable Energy Project Tribal Renewable Energy Project Development and Financing Essentials Introduction The U.S. Department of Energy (DOE) Office of Indian Energy Policy and Programs is responsible for assisting Tribes with energy planning and development, infrastructure, energy costs, and electrification of Indian lands and homes. As part of this commitment and on behalf of DOE, the Office of Indian Energy is leading education and capacity building efforts in Indian Country. 2 About the Speaker Elizabeth Doris * Senior Project Leader at the National Renewable Energy Laboratory (NREL) * Specializes in strategies for developing clean energy technologies in public and private markets * Project manager for the DOE Office of Indian Energy project team at NREL 3 Why Complete a Renewable Energy Project?

240

GREEN'S FUNCTIONS OF VORTEX OPERATORS  

E-Print Network (OSTI)

surface clustering the Green's function 5.1 actually spreadsb. Another graph for the same Green's function. c. Anothercomposite divergences. The Green's function 5.6, considered

Polchinski, Joseph

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Insights into the Importance of Hydrogen Bonding in the [gamma]-Phosphate Binding Pocket of Myosin: Structural and Functional Studies of Serine 236  

DOE Green Energy (OSTI)

The active site of myosin contains a group of highly conserved amino acid residues whose roles in nucleotide hydrolysis and energy transduction might appear to be obvious from the initial structural and kinetic analyses but become less clear on deeper investigation. One such residue is Ser236 (Dictyostelium discoideum myosin II numbering) which was proposed to be involved in a hydrogen transfer network during {gamma}-phosphate hydrolysis of ATP, which would imply a critical function in ATP hydrolysis and motility. The S236A mutant protein shows a comparatively small decrease in hydrolytic activity and motility, and thus this residue does not appear to be essential. To understand better the contribution of Ser236 to the function of myosin, structural and kinetic studies have been performed on the S236A mutant protein. The structures of the D. discoideum motor domain (S1dC) S236A mutant protein in complex with magnesium pyrophosphate, MgAMPPNP, and MgADP{center_dot}vanadate have been determined. In contrast to the previous structure of wild-type S1dC, the S236A{center_dot}MgAMPPNP complex crystallized in the closed state. Furthermore, transient-state kinetics showed a 4-fold reduction of the nucleotide release step, suggesting that the mutation stabilizes a closed active site. The structures show that a water molecule approximately adopts the location of the missing hydroxyl of Ser236 in the magnesium pyrophosphate and MgAMPPNP structures. This study suggests that the S236A mutant myosin proceeds via a different structural mechanism than wild-type myosin, where the alternate mechanism is able to maintain near normal transient-state kinetic values.

Frye, Jeremiah J.; Klenchin, Vadim A.; Bagshaw, Clive R.; Rayment, Ivan (Leicester); (UW)

2010-09-22T23:59:59.000Z

242

Discontinuous Function Integration  

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

Discontinuous Function Integration Discontinuous Function Integration Name: Clarence Status: student Grade: 9-12 Location: CA Country: USA Date: Winter 2011-2012 Question: We know that the area under a continuous function on a certain interval, for instance, [a,b], can be found out by definite integration (taking limit of a sum of areas of rectangles). But when the curve is a discontinuous function, the limit does not exist and is not independent of the choice of the height of rectangle in each delta x. Does it mean that the height in an interval delta x including f(x) of undefined value can be any value so that a limiting value (area under the curve) does not exist? Replies: If I understand your question correctly, here is a way out. The limits of integration are divided into sections [x1,y1] to [x2,y2] over which the function is continuous. Then the next section [x2,y2] to [x3,y3] over which the function is continuous is added to the first section. You can carry this on as long as you need to include each of the separate segments. That is not so hard, but I am not completely sure that is what you are asking. There are some pathological functions where this pasting together does not work so well.

243

Functionalized expanded porphyrins  

DOE Patents (OSTI)

Disclosed are functionalized expanded porphyrins that can be used as spectrometric sensors for high-valent actinide cations. The disclosed functionalized expanded porphyrins have the advantage over unfunctionalized systems in that they can be immobilized via covalent attachment to a solid support comprising an inorganic or organic polymer or other common substrates. Substrates comprising the disclosed functionalized expanded porphyrins are also disclosed. Further, disclosed are methods of making the disclosed compounds (immobilized and free), methods of using them as sensors to detect high valent actinides, devices that comprise the disclosed compounds, and kits.

Sessler, Jonathan L; Pantos, Patricia J

2013-11-12T23:59:59.000Z

244

Apparatus for establishing and maintaining a stable discharge across a stream of flowing gas, particularly useful for high-power lasers  

SciTech Connect

Apparatus is described for establishing and maintaining a stable discharge across a stream of gas flowing through a gas-flow channel, which consists of: an electrode system including a group of working electrodes disposed on opposite sides of the gas flow channel and spaced longitudinally thereof in the direction of gas flow, which working electrodes include at least one upstream electrode at the upstream end of the gas flow channel; a high-voltage alternating current source connected at one side to each of the working electrodes and at the opposite side to a point of fixed reference potential; and a ballast impedance connected to each of the working electrodes for stabilizing the electrical discharge; the electrode system further including at least one starting electrode adjacent to the upstream working electrode and connected to the point of fixed reference potential via a ballast impedance of substantially larger impedance value than those connected to the working electrodes, such that the starting electrode is effective to bring the point of fixed reference potential to the upstream working electrode to start the discharge, and to draw little current after the discharge has been started.

Katz, D.

1986-03-04T23:59:59.000Z

245

DLMF: 27.2 Functions  

Science Conference Proceedings (OSTI)

... Defines: : divisor function and : number of distinct primes dividing Keywords: EulerFermat theorem, Euler's totient, Jordan's function, Liouville's ...

2013-05-03T23:59:59.000Z

246

Pretzelosity distribution function  

E-Print Network (OSTI)

The 'pretzelosity' distribution is discussed. Theoretical properties, model results, and perspectives to access experimental information on this leading twist, transverse momentum dependent parton distribution function are reviewed. Its relation to helicity and transversity distributions is highlighted.

H. Avakian; A. V. Efremov; P. Schweitzer; F. Yuan

2008-08-28T23:59:59.000Z

247

Structure function monitor  

DOE Patents (OSTI)

Methods and apparatus for a structure function monitor provide for generation of parameters characterizing a refractive medium. In an embodiment, a structure function monitor acquires images of a pupil plane and an image plane and, from these images, retrieves the phase over an aperture, unwraps the retrieved phase, and analyzes the unwrapped retrieved phase. In an embodiment, analysis yields atmospheric parameters measured at spatial scales from zero to the diameter of a telescope used to collect light from a source.

McGraw, John T. (Placitas, NM); Zimmer, Peter C. (Albuquerque, NM); Ackermann, Mark R. (Albuquerque, NM)

2012-01-24T23:59:59.000Z

248

Functional design criteria, Project W-059, B Plant Canyon ventilation upgrade  

SciTech Connect

This document outlines the essential functions and requirements to be included in the design of the proposed B Plant canyon exhaust system upgrade. The project will provide a new exhaust air filter system and isolate the old filters from the airstream.

Roege, P.E.

1995-03-02T23:59:59.000Z

249

Stochastic variability of effective properties via the generalized variability response function  

Science Conference Proceedings (OSTI)

Homogenization of randomly heterogeneous material properties into effective properties is an essential procedure in facilitating the analysis of a wide range of mechanics problems. Although formulas exist to calculate deterministic effective properties ... Keywords: Effective properties, Random fields, Uncertainty quantification, Variability response functions

Kirubel Teferra; Sanjay R. Arwade; George Deodatis

2012-11-01T23:59:59.000Z

250

Functional Segmentation of Renal DCE-MRI Sequences Using Vector Quantization Algorithms  

Science Conference Proceedings (OSTI)

In dynamic contrast-enhanced magnetic resonance imaging, segmentation of internal kidney structures like cortex, medulla and cavities is essential for functional assessment. To avoid fastidious and time-consuming manual segmentation, semi-automatic methods ... Keywords: Biomedical image processing, Biomedical magnetic resonance imaging, Clustering methods, Image segmentation, Image sequence analysis, Vector quantization

Batrice Chevaillier; Damien Mandry; Jean-Luc Collette; Michel Claudon; Marie-Agns Galloy; Olivier Pietquin

2011-08-01T23:59:59.000Z

251

Structure and assembly of the essential RNA ring component of a viral DNA packaging motor  

SciTech Connect

Prohead RNA (pRNA) is an essential component in the assembly and operation of the powerful bacteriophage {psi}29 DNA packaging motor. The pRNA forms a multimeric ring via intermolecular base-pairing interactions between protomers that serves to guide the assembly of the ring ATPase that drives DNA packaging. Here we report the quaternary structure of this rare multimeric RNA at 3.5 {angstrom} resolution, crystallized as tetrameric rings. Strong quaternary interactions and the inherent flexibility helped rationalize how free pRNA is able to adopt multiple oligomerization states in solution. These characteristics also allowed excellent fitting of the crystallographic pRNA protomers into previous prohead/pRNA cryo-EM reconstructions, supporting the presence of a pentameric, but not hexameric, pRNA ring in the context of the DNA packaging motor. The pentameric pRNA ring anchors itself directly to the phage prohead by interacting specifically with the fivefold symmetric capsid structures that surround the head-tail connector portal. From these contacts, five RNA superhelices project from the pRNA ring, where they serve as scaffolds for binding and assembly of the ring ATPase, and possibly mediate communication between motor components. Construction of structure-based designer pRNAs with little sequence similarity to the wild-type pRNA were shown to fully support the packaging of {psi}29 DNA.

Ding, Fang; Lu, Changrui; Zhao, Wei; Rajashankar, Kanagalaghatta R.; Anderson, Dwight L.; Jardine, Paul J.; Grimes, Shelley; Ke, Ailong (Cornell); (UMM)

2011-07-25T23:59:59.000Z

252

Aging assessment of essential HVAC chillers used in nuclear power plants. Phase 1, Volume 1  

SciTech Connect

The Pacific Northwest Laboratory conducted a Phase I aging assessment of chillers used in the essential safety air-conditioning systems of nuclear power plants. Centrifugal chillers in the 75- to 750-ton refrigeration capacity range are the predominant type used. The chillers used, and air-conditioning systems served, vary in design from plant-to-plant. It is crucial to keep chiller internals very clean and to prevent the leakage of water, air, and other contaminants into the refrigerant containment system. Periodic operation on a weekly or monthly basis is necessary to remove moisture and noncondensable gases that gradually build up inside the chiller. This is especially desirable if a chiller is required to operate only as an emergency standby unit. The primary stressors and aging mechanisms that affect chillers include vibration, excessive temperatures and pressures, thermal cycling, chemical attack, and poor quality cooling water. Aging is accelerated by moisture, non-condensable gases (e.g., air), dirt, and other contamination within the refrigerant containment system, excessive start/stop cycling, and operating below the rated capacity. Aging is also accelerated by corrosion and fouling of the condenser and evaporator tubes. The principal cause of chiller failures is lack of adequate monitoring. Lack of performing scheduled maintenance and human errors also contribute to failures.

Blahnik, D.E.; Klein, R.F. [Pacific Northwest Lab., Richland, WA (United States)

1993-09-01T23:59:59.000Z

253

Essential Latent Knowledge for Protein-Protein Interactions: Analysis by an Unsupervised Learning Approach  

Science Conference Proceedings (OSTI)

Protein-protein interactions play a number of central roles in many cellular functions, including DNA replication, transcription and translation, signal transduction, and metabolic pathways. A recent increase in the number of protein-protein interactions ... Keywords: Biology and genetics, machine learning, data mining, mining methods and algorithms.

Hiroshi Mamitsuka

2005-04-01T23:59:59.000Z

254

Structure/Function Relationships  

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

Structure/Function Relationships Structure/Function Relationships in Electronic Ceramics Device applications require concurrent optimization of many functional charac- teristics of materials via modifications of their crystal structures using complex chemistry. We found anomalous XAS results on the temperature dependence of the coordination geometry of Ag(Nb,Ta)O3, the only known system that exhibits large, temperature-stable dielectric constants and modest dielectric loss at microwave frequencies. Beamline for Materials Measurement (BMM) Group Leader: Daniel Fischer Proposal Team: D. Fischer, J. Woicik, B. Ravel National Institute of Standards and Technology TECHNIQUES AND CAPABILITIES APPLICATIONS NIST INVESTMENT IN BMM * The mission of BMM is to apply X-ray Absorption Spectroscopy (XAS)

255

Partition Function of Spacetime  

E-Print Network (OSTI)

We consider a microscopic model of spacetime, where spacetime is assumed to be a specific graph with Planck size quantum black holes on its vertices. As a thermodynamical system under consideration we take a certain uniformly accelerating, spacelike two-surface of spacetime which we call, for the sake of brevity and simplicity, as {\\it acceleration surface}. Using our model we manage to obtain an explicit and surprisingly simple expression for the partition function of an acceleration surface. Our partition function implies, among other things, the Unruh and the Hawking effects. It turns out that the Unruh and the Hawking effects are consequences of a specific phase transition, which takes place in spacetime, when the temperature of spacetime equals, from the point of view of an observer at rest with respect to an acceleration surface, to the Unruh temperature measured by that observer. When constructing the partition function of an acceleration surface we are forced to introduce a quantity which plays the ro...

Makela, Jarmo

2008-01-01T23:59:59.000Z

256

Structure, Function, and Evolution of Rice Centromeres  

SciTech Connect

The centromere is the most characteristic landmark of eukaryotic chromosomes. Centromeres function as the site for kinetochore assembly and spindle attachment, allowing for the faithful pairing and segregation of sister chromatids during cell division. Characterization of centromeric DNA is not only essential to understand the structure and organization of plant genomes, but it is also a critical step in the development of plant artificial chromosomes. The centromeres of most model eukaryotic species, consist predominantly of long arrays of satellite DNA. Determining the precise DNA boundary of a centromere has proven to be a difficult task in multicellular eukaryotes. We have successfully cloned and sequenced the centromere of rice chromosome 8 (Cen8), representing the first fully sequenced centromere from any multicellular eukaryotes. The functional core of Cen8 spans ~800 kb of DNA, which was determined by chromatin immunoprecipitation (ChIP) using an antibody against the rice centromere-specific H3 histone. We discovered 16 actively transcribed genes distributed throughout the Cen8 region. In addition to Cen8, we have characterized eight additional rice centromeres using the next generation sequencing technology. We discovered four subfamilies of the CRR retrotransposon that is highly enriched in rice centromeres. CRR elements are constitutively transcribed and different CRR subfamilies are differentially processed by RNAi. These results suggest that different CRR subfamilies may play different roles in the RNAi-mediated pathway for formation and maintenance of centromeric chromatin.

Jiang, Jiming

2010-02-04T23:59:59.000Z

257

Aging assessment of essential HVAC chillers used in nuclear power plants  

SciTech Connect

The Pacific Northwest Laboratory conducted a comprehensive aging assessment of chillers used in the essential safety air-conditioning systems in nuclear power plants (NPPs). The chillers used, and air-conditioning systems served, vary in design from plant to plant. The review of operating experience indicated that chillers experience aging degradation and failures. The primary aging factors of concern for chillers include vibration, excessive temperatures and pressures, thermal cycling, chemical attack, and poor quality cooling water. The evaluation of Licensee Event Reports (LERs) indicated that about 38% of the failures were primarily related to aging, 55% were partially aging related, and 7% of the failures were unassignable. About 25% of the failures were primarily caused by human, design, procedure, and other errors. The large number of errors is probably directly related to the complexity of chillers and their interfacing systems. Nearly all of the LERs were the result of entering plant Technical Specification Limiting Condition for Operation (LCO) that initiated remedial actions like plant shutdown procedures. The trend for chiller-related LERs has stabilized at about 0.13 LERs per plant year since 1988. Carefully following the vendor procedures and monitoring the equipment can help to minimize and/or eliminate most of the premature failures. Recording equipment performance can be useful for trending analysis. Periodic operation for a few hours on a weekly or monthly basis is useful to remove moisture and non-condensable gases that gradually build up inside the chiller. Chiller pressurization kits are available that will help minimize the amount of moisture and air ingress to low-pressure chillers during standby periods. The assessment of service life condition monitoring of chillers indicated there are many simple to sophisticated methods available that can help in chiller surveillance and monitoring.

Blahnik, D.E.; Camp, T.W.

1996-09-01T23:59:59.000Z

258

Outsourcing network functionality  

Science Conference Proceedings (OSTI)

This paper presents an architecture for adding functionality to networks via outsourcing. In this model, the enterprise network only forwards data; any additional processing is performed by external Feature Providers (FPs). FPs provide and manage ... Keywords: jingling, middleboxes, network services, outsourcing, sdn

Glen Gibb; Hongyi Zeng; Nick McKeown

2012-08-01T23:59:59.000Z

259

Process for functionalizing alkanes  

DOE Patents (OSTI)

Process for functionalizing saturated hydrocarbons comprises: (a) reacting said saturated hydrocarbons of the formula: R[sub 1]H wherein H represents a hydrogen atom; and R[sub 1] represents a saturated hydrocarbon radical, with a metal complex of the formula: CpRh[P(R[sub 2])[sub 3

Bergman, R.G.; Janowicz, A.H.; Periana, R.A.

1988-05-24T23:59:59.000Z

260

Astrophysical thermonuclear functions  

E-Print Network (OSTI)

Stars are gravitationally stabilized fusion reactors changing their chemical composition while transforming light atomic nuclei into heavy ones. The atomic nuclei are supposed to be in thermal equilibrium with the ambient plasma. The majority of reactions among nuclei leading to a nuclear transformation are inhibited by the necessity for the charged participants to tunnel through their mutual Coulomb barrier. As theoretical knowledge and experimental verification of nuclear cross sections increases it becomes possible to refine analytic representations for nuclear reaction rates. Over the years various approaches have been made to derive closed-form representations of thermonuclear reaction rates (Critchfield 1972, Haubold and John 1978, Haubold, Mathai and Anderson 1987). They show that the reaction rate contains the astrophysical cross section factor and its derivatives which has to be determined experimentally, and an integral part of the thermonuclear reaction rate independent from experimental results which can be treated by closed-form representation techniques in terms of generalized hypergeometric functions. In this paper mathematical/statistical techniques for deriving closed-form representations of thermonuclear functions will be summarized and numerical results for them will be given. The separation of thermonuclear functions from thermonuclear reaction rates is our preferred result. The purpose of the paper is also to compare numerical results for approximate and closed-form representations of thermonuclear functions. This paper completes the work of Haubold, Mathai, and Anderson (1987).

William J. Anderson; Hans J. Haubold; Arak Mathai Mathai

1993-08-23T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Microsoft Project: Essentials for Beginners This course aims to help you manage projects, both small and large, by introducing  

E-Print Network (OSTI)

materials Costs Constraints and deadlines Project monitoring Printing Course Format: This is a oneMicrosoft Project: Essentials for Beginners Overview: This course aims to help you manage projects, both small and large, by introducing you to Microsoft Project 2007. The course covers the important

Frean, Marcus

262

CompTIA A+ Complete Study Guide: Exams 220-701 (Essentials) and 220-702 (Practical Application)  

Science Conference Proceedings (OSTI)

The Essential Study Tool for the 2009 Edition of the CompTIA A+ Exams The CompTIA A+ certification is the industry standard in terms of measuring a technician's hardware and software knowledge. As the most popular entry-level certification, it is particularly ...

Quentin Docter; Emmett Dulaney; Toby Skandier

2009-10-01T23:59:59.000Z

263

Spectral Functions at finite temperature and chemical potential  

E-Print Network (OSTI)

There are two formulations at non-zero chemical potential; one is the formulation that a Lagrangian includes a chemical potential, the other is the formulation that a Lagrangian does not include a chemical potential. The existence of two formulations makes a calculation complicated. The results from those formulations are not corresponding directly. This discrepancy exists in the imaginary time formalism and the real time formalism. However, since this is essentially caused by a difference of a frequency, the discrepancy vanishes by modifying the Fourier transform. We show a calculational procedure with a spectral function to understand this.

Sasagawa, S

2011-01-01T23:59:59.000Z

264

Energy Functional for Nuclear Masses.  

E-Print Network (OSTI)

??An energy functional is formulated for mass calculations of nuclei across the nuclear chart with major-shell occupations as the relevant degrees of freedom. The functional (more)

Bertolli, Michael Giovanni

2011-01-01T23:59:59.000Z

265

Two-Cluster Distribution Functions  

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

Cluster Distribution Functions New New: Green's function Monte Carlo results We have computed momentum distributions and configuration space overlaps in a number of systems,...

266

Adapting ORAP to wind plants : industry value and functional requirements.  

SciTech Connect

Strategic Power Systems (SPS) was contracted by Sandia National Laboratories to assess the feasibility of adapting their ORAP (Operational Reliability Analysis Program) tool for deployment to the wind industry. ORAP for Wind is proposed for use as the primary data source for the CREW (Continuous Reliability Enhancement for Wind) database which will be maintained by Sandia to enable reliability analysis of US wind fleet operations. The report primarily addresses the functional requirements of the wind-based system. The SPS ORAP reliability monitoring system has been used successfully for over twenty years to collect RAM (Reliability, Availability, Maintainability) and operations data for benchmarking and analysis of gas and steam turbine performance. This report documents the requirements to adapt the ORAP system for the wind industry. It specifies which existing ORAP design features should be retained, as well as key new requirements for wind. The latter includes alignment with existing and emerging wind industry standards (IEEE 762, ISO 3977 and IEC 61400). There is also a comprehensive list of thirty critical-to-quality (CTQ) functional requirements which must be considered and addressed to establish the optimum design for wind.

Not Available

2010-08-01T23:59:59.000Z

267

Extracting the Eliashberg Function  

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

Extracting the Eliashberg Function Print Extracting the Eliashberg Function Print A multitude of important chemical, physical, and biological phenomena are driven by violations of the Born-Oppenheimer approximation (BOA), which decouples electronic from nuclear motion in quantum calculations of solids. Recent advances in experimental techniques combined with ever-growing theoretical capabilities now hold the promise of presenting an unprecedented picture of these violations. By means of high-resolution angle-resolved photoemission at the ALS and theoretical calculations, a multi-institutional collaboration that includes researchers from Oak Ridge National Laboratory, the University of Tennessee, Stanford University, and the ALS has obtained the first high-resolution spectroscopic images of the specific vibrational modes that couple to a given electronic state.

268

Extracting the Eliashberg Function  

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

Extracting the Eliashberg Extracting the Eliashberg Function Extracting the Eliashberg Function Print Wednesday, 23 February 2005 00:00 A multitude of important chemical, physical, and biological phenomena are driven by violations of the Born-Oppenheimer approximation (BOA), which decouples electronic from nuclear motion in quantum calculations of solids. Recent advances in experimental techniques combined with ever-growing theoretical capabilities now hold the promise of presenting an unprecedented picture of these violations. By means of high-resolution angle-resolved photoemission at the ALS and theoretical calculations, a multi-institutional collaboration that includes researchers from Oak Ridge National Laboratory, the University of Tennessee, Stanford University, and the ALS has obtained the first high-resolution spectroscopic images of the specific vibrational modes that couple to a given electronic state.

269

Superconducting combined function magnets  

SciTech Connect

Superconducting accelerators and storage rings, presently under construction or in the design phase, are based on separate dipole and quadrupole magnets. It is here suggested that a hybrid lattice configuration consisting of dipoles and combined function gradient magnets would: (1) reduce the number of magnet units and their total cost; and (2) increase the filling factor and thus the energy at a given field. Coil cross sections are presented for the example of the Brookhaven Colliding Beam Accelerator. An asymmetric two-layer cable gradient magnet would have transfer functions of 10.42 G/A and 0.628 G cm/sup -1//A versus 15.77 G/A and 2.03 G cm/sup -1//A of the present separate dipoles and quadrupoles.

Hahn, H.; Fernow, R.C.

1983-01-01T23:59:59.000Z

270

Conversion of essential fatty acids by Delta 6 desaturase in dog liver microsomes  

E-Print Network (OSTI)

Long Chain Polyunsaturated Fatty Acids (LCPUFA) are physiologically important precursors for eicosanoids, leukotrienes, and prostanoids. Desaturation of essential fatty acids (EFAs) by []6-desaturase is considered the rate-limiting step in conversion of EFAs to LCPUFA. This study was designed to study the conversion of EFAs by []6-desaturase in dog liver microsomes. Microsomes were prepared using fresh liver from healthy dogs. Microsomes were incubated with ?C labeled 18 carbon EFA substrates. Following incubation, lipids were extracted, saponified and phenacylated. The resulting fatty acid phenacyl esters (FAPES) were separated by HPLC. Radioactivity was measured with a liquid scintillation counter, converted to enzymatic activity, and expressed as pmol/min/mg protein. Using 18:3n-3 as substrate, the apparent []6-desaturase maximal velocity was 50.9 pmol/min/mg protein and using 18:2n-6 substrate, the maximal velocity was 5.4 pmol/min/mg protein. Apparent K[] values were 20.8 []M for 18:3n-3 and 41.8 []M for 18:2n-6. Maximal velocities were lower than previously reported in dogs and other species. Possible explanations include the presence of high endogenous fatty acid concentration (especially 18:2n-6) inherent in the dog liver microsome preparations providing high amounts of competitive non-radioactively labeled substrate, or methodological differences used in other studies. After accounting for endogenous 18:2n-6 fatty acids, the corrected V[] and K[] for the ?-LA substrate was 62.4 pmol/min/mg protein and 12.4 []M, respectively. Corrected values of V[] and K[] for LA substrate were not calculated due to interference from high endogenous LA ubstrate concentrations in the liver microsomes. Dog liver microsomes have the ability to desaturate EFAs. Also, the maximal velocity of []6-desaturase of 18:3n-3 is considerably higher than that of 18:2n-6 in vitro, while K[] values are similar. Physiologically, 18:3n-3 concentration in liver (2.4 []M) may never exceed the K[] for desaturation in the absence of high dietary amounts while 18:2n-6 amounts are readily converted because its concentration (64.4 []M) easily exceeds the K[]. These phenomena may explain the low in vivo conversion rate of 18:3n-3 in dogs and other species. These findings suggest that high levels of 18:3n-3 supplementation may be necessary to exceed the []6-desaturase K[] and significantly affect physiological levels of n-3 LCPUFA in the dog.

Dunbar, Brent Lee

2001-01-01T23:59:59.000Z

271

Generalised twisted partition functions  

E-Print Network (OSTI)

We consider the set of partition functions that result from the insertion of twist operators compatible with conformal invariance in a given 2D Conformal Field Theory (CFT). A consistency equation, which gives a classification of twists, is written and solved in particular cases. This generalises old results on twisted torus boundary conditions, gives a physical interpretation of Ocneanu's algebraic construction, and might offer a new route to the study of properties of CFT.

Petkova, V B

2001-01-01T23:59:59.000Z

272

Next Generation Nuclear Plant Resilient Control System Functional Analysis  

SciTech Connect

Control Systems and their associated instrumentation must meet reliability, availability, maintainability, and resiliency criteria in order for high temperature gas-cooled reactors (HTGRs) to be economically competitive. Research, perhaps requiring several years, may be needed to develop control systems to support plant availability and resiliency. This report functionally analyzes the gaps between traditional and resilient control systems as applicable to HTGRs, which includes the Next Generation Nuclear Plant; defines resilient controls; assesses the current state of both traditional and resilient control systems; and documents the functional gaps existing between these two controls approaches as applicable to HTGRs. This report supports the development of an overall strategy for applying resilient controls to HTGRs by showing that control systems with adequate levels of resilience perform at higher levels, respond more quickly to disturbances, increase operational efficiency, and increase public protection.

Lynne M. Stevens

2010-07-01T23:59:59.000Z

273

Partition Function of Spacetime  

E-Print Network (OSTI)

We consider a microscopic model of spacetime, where spacetime is assumed to be a specific graph with Planck size quantum black holes on its vertices. As a thermodynamical system under consideration we take a certain uniformly accelerating, spacelike two-surface of spacetime which we call, for the sake of brevity and simplicity, as {\\it acceleration surface}. Using our model we manage to obtain an explicit and surprisingly simple expression for the partition function of an acceleration surface. Our partition function implies, among other things, the Unruh and the Hawking effects. It turns out that the Unruh and the Hawking effects are consequences of a specific phase transition, which takes place in spacetime, when the temperature of spacetime equals, from the point of view of an observer at rest with respect to an acceleration surface, to the Unruh temperature measured by that observer. When constructing the partition function of an acceleration surface we are forced to introduce a quantity which plays the role of thermal energy of the surface. An interpretation of that quantity as energy in a normal manner yields Einstein's field equation with a vanishing cosmological constant for general matter fields.

Jarmo Makela

2008-10-27T23:59:59.000Z

274

Identifying Socio-ecological Factors Influencing the Use of Prescribed Fire to Maintain and Restore Ecosystem Health in Texas, USA and Northern Chihuahua, Mexico  

E-Print Network (OSTI)

There is a critical need for more studies to identify socio-ecological drivers that affect conservation and management of fire adapted ecosystems, yet studies that identify such variables and explore their interaction in specific systems are not only scarce but limited to only a few systems. Although information on the socio-ecological effects of prescribed fire application exists, there is no integrative framework that simultaneously considers the interplay between social and ecological factors affecting the use of prescribed fires. Fire suppression, together with other human and natural disturbances in grassland systems that are adapted to episodic fire, are the major factors that have contributed to the recruitment of woody species into grasslands worldwide. Even though the ecology of restoring these fire prone systems back to a grassland state is becoming clearer, the major hurdle to reintroducing historic fire at a landscape scale is its social acceptability. To address these deficiencies, I studied the socio-ecological factors influencing the use of prescribed fire in Texas, USA and Chihuahua, Mexico using a combination of quantitative and qualitative approaches to examine how social and ecological factors affect ecosystem conservation and management of semi-arid grassland systems. For the Texas case study I used quantitative survey data analyzed using logistic regression models and structural equation models. For the Mexico case study I used qualitative interviews gathered using a snowball network sampling approach and coded them based on the analytic themes of land cover change, institutional failure, market drivers, and population dynamics. Results from the Texas case study suggest that risk taking orientation and especially, perceived support from others when implementing prescribed burns, play important roles in determining attitudes towards the use of high-intensity prescribed fires, which are sometimes needed to restore ecosystems. Results from the Texas case study also highlight how membership in Prescribed Burn Associations (PBAs) influence land manager decisions regarding the use of prescribed fire by reducing concerns over lack of skills, knowledge and resources. Results emphasize the potential for PBAs to reduce risk concerns regarding the application of prescribed fire and are relevant to management of brush encroached areas. Through PBAs, effective landscape-scale solutions to the brush encroachment problem can be achieved in Texas. Results from the Mexico case study show how fire stopped effectively being a driving factor on this system decades ago. Socio-political and ecological changes at the national, and international level produced changes in land use disrupting historical fire patterns and contributing to the ecological deterioration of the area. Droughts combined with poor management practices have depleted the fuel needed to carry a fire. Landowners also face safety and legal concerns but in most cases, even if a landowner decided to implement a prescribed burn, an ecological threshold has been crossed and current fine fuel loads (grass) are insufficient to carry a fire that is sufficiently intense to reduce brush cover and restore grassland and savanna ecosystems. Based on my findings I can conclude that ecologically sound adaptive management and social capital are fundamental components of the livelihoods of landowners and land managers in both case studies. Work and investment that is focused on strengthening this social capital will have the most profound effects in maintaining the integrity of grassland systems at a landscape scale.

Toledo, David

2013-05-01T23:59:59.000Z

275

Functional Metal Phosphonates  

E-Print Network (OSTI)

The primary goal of the work described in this dissertation was the incorporation of functionality into metal phosphonates. This was done in one of several ways. The first involved using phosphonate ligands that had covalently attached organic functional groups. In some cases, these ligands undergo reactions during the solvothermal syntheses which can impart new chemical reactivity. Another method used to introduce functionality was to partially or completely substitute metal atoms within phosphonate clusters to create materials which may have interesting magnetic properties. By controlling the way these clusters pack in the solids, their magnetic properties may be able to be augmented. The final method used to impart functionality to metal phosphonates was the incorporation of N-donor and bulky aryl groups into the phosphonate ligands. These influences caused structural variations which exposed potentially active sites within the materials, including both Lewis acidic and basic sites, as well as Bronsted acid sites. The first strategy was employed in the design of tetravalent metal phosphonates which have covalently incorporated bipyridine moieties. The materials are porous so that the bipyridine sites can chelate Pd atoms from solution, which can then be reduced to stable nanoparticles trapped within the phosphonate matrix. This approach was also used in the synthesis of surface-functionalized divalent metal phosphonates which exhibit interesting amine uptake properties. Solvent and cation substitution effects were used to control the packing and connectivity of phosphonate-based clusters. The selective substitution of metal atoms within the clusters may lead to interesting magnetic materials. In other work, N-donor and bulky phosphonates were used to influence the structure of several SnII phosphonates, which resulted in the discovery of a new layered structure type. The effect of the Sn-N interaction on the structures is investigated, and found to have significant effects on the structural units formed and how they pack in the solid state. The work presented herein represents only a small fraction of the rich chemistry of metal phosphonates. Creative researchers will continue to push boundaries and find new and interesting applications for phosphonate-based materials.

Perry, Houston Phillipp

2011-12-01T23:59:59.000Z

276

The structure of Green functions in quantum field theory with a general state  

E-Print Network (OSTI)

In quantum field theory, the Green function is usually calculated as the expectation value of the time-ordered product of fields over the vacuum. In some cases, especially in degenerate systems, expectation values over general states are required. The corresponding Green functions are essentially more complex than in the vacuum, because they cannot be written in terms of standard Feynman diagrams. Here, a method is proposed to determine the structure of these Green functions and to derive nonperturbative equations for them. The main idea is to transform the cumulants describing correlations into interaction terms.

Christian Brouder

2007-10-30T23:59:59.000Z

277

Structures for Three Membrane Transport Proteins Yield Functional Insights  

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

Structures for Three Membrane Structures for Three Membrane Transport Proteins Yield Functional Insights Structures for Three Membrane Transport Proteins Yield Functional Insights Print Wednesday, 27 January 2010 00:00 Cells depend on contact with their outside environment in order to thrive. Two examples illustrate why: In one, information needed to guide cellular processes is constantly transmitted across cell membranes by specialized proteins, and in the other, maintaining the right gradient of ions across the membrane is a process critical to the life and death of a cell. Membrane transport proteins-functioning either as channels or transporters-are the gatekeepers that control contact with the world outside the cell by catalyzing the flow of ions and molecules across cell membranes. Malfunctioning transport proteins can lead to cancer, inflammatory, and neurological diseases. Despite their importance in cell function and in a multitude of physiological processes such as sensing pain, there are still many unknowns about how they function. Recently, in an impressive series of three papers in Nature and Science, researchers at the Oregon Health and Science University delineated the structures of three transporter proteins, one of which had never before been characterized structurally in such detail. The structures were solved using ALS Beamlines 5.0.2, 8.2.1, and 8.2.2.

278

Process management using component thermal-hydraulic function classes  

DOE Patents (OSTI)

A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced.

Morman, James A. (Woodridge, IL); Wei, Thomas Y. C. (Downers Grove, IL); Reifman, Jaques (Western Springs, IL)

1999-01-01T23:59:59.000Z

279

Process management using component thermal-hydraulic function classes  

DOE Patents (OSTI)

A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced. 5 figs.

Morman, J.A.; Wei, T.Y.C.; Reifman, J.

1999-07-27T23:59:59.000Z

280

SAFETY INSTRUMENTED FUNCTIONS AS CRITICALITY DEFENSES  

SciTech Connect

The objective of this paper is to share the SRS methodology for identifying the reliability requirements and documenting the expected performance of Safety Instrumented Functions (SIFs) used as criticality defenses. Nuclear Criticality SIFs are comprised of sensors, logic solvers, and final control elements, which may be either automatic or manual, to detect a process hazard and respond to prevent a criticality. The Savannah River Site (SRS) has invoked the chemical process industry safety standard (ANSI/ISA 84.00.01) for the design of safety significant instrumented systems. The ISA standard provides a graded approach to design based on the amount of risk reduction that is required of an SIF. SRS is embarking on application of this standard to nuclear criticality defenses, thus integrating criticality safety requirements with verifiable design methodology. Per the DOE G 421.1-1 discussion of the double contingency principle, guidance for a single contingency barrier includes, ''The estimated probability that the control will fail (when called upon for protection) is not greater than 1 in 100 demands''. The application of this standard to nuclear criticality SIFs will provide clear requirements in terms of safety availability and testing to assure that the instrumented criticality system as designed, installed, and maintained will meet is performance requirements. The paper identifies the numerous challenges presented by this initiative and the benefits of this approach.

Suttinger, L; William Hearn, W

2007-03-26T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Organization and Functions  

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

Working to Ensure the Safety and Security of Hazardous Material Shipments Working to Ensure the Safety and Security of Hazardous Material Shipments Organization and Functions Mission Unit EM-30 Deputy Assistant Secretary/ADAS Waste Management Director Office of Packaging and Transportation EM-33 Regulations & Standards Support * ANSI * ASME/ ASTM * DHS * DOD FEMA * FMCSA * FRA * IAEA * ICAO * IMO * NRC * Orders * PHMSA TSA * UN TDG SCOE Packaging Certification * CoCs for Type B/AF Packages * DOE Exemptions * DOT Special Permits & COCA * QA * RAMPAC * SCALE * Technical Assistance * Training Program & Site Support * ATMS * EFCOG * EIS Reviews * IPT * Load Securement Guide * PMC * RADCALC * RADTRAN * Secure transport * Technical assistance * Tenders * TMC * TRAGIS

282

This Guide is designed to provide assistance to the community regarding the direct charging of costs to sponsored projects while maintaining compliance with the Federal cost principles (2 CFR Part 220, OMB  

E-Print Network (OSTI)

charging of costs to sponsored projects while maintaining compliance with the Federal cost principles (2. Typical costs charged directly to a sponsored project include: 1. compensation of employees incurred for the sponsored project. Costs of materials from stock/services rendered by specialized

283

Tumor Necrosis Factor Receptor p55 Is Essential for Intrahepatic Granuloma Formation and Hepatocellular Apoptosis in a Murine Model of Bacterium-Induced Fulminant Hepatitis  

E-Print Network (OSTI)

Tumor necrosis factor receptor p55 is essential for intrahepatic granuloma formation and hepatocellular apoptosis in a murine model of bacterium-induced fulminant hepatitis.

H Tsuji; A Harada; N Mukaida; Y Nakanuma; H Bluethmann; K Yamakawa; S I Nakamura; K I Kobayashi; Hirokazu Tsuji; Akihisa Harada; Naofumi Mukaida; Yasuni Nakanuma; Horst Bluethmann; Shuichi Kaneko; Kiyotaka Yamakawa; Shin-ichi Nakamura

1996-01-01T23:59:59.000Z

284

Process for functionalizing alkanes  

DOE Green Energy (OSTI)

Process for functionalizing saturated hydrocarbons comprising: (a) reacting said saturated hydrocarbons of the formula: R.sub.1 H wherein H represents a hydrogen atom; and R.sub.1 represents a saturated hydrocarbon radical, with a metal complex of the formula: CpRh[P(R.sub.2).sub.3 ]H.sub.2 wherein Cp represents a cyclopentadienyl or alkylcyclopentadienyl radical; Rh represents a rhodium atom; P represents a phosphorus atom; R.sub.2 represents a hydrocarbon radical; H represents a hydrogen atom, in the presence of ultraviolet radiation to form a hydridoalkyl complex of the formula: CpRh[P(R.sub.2).sub.3 ](R.sub.1)H (b) reacting said hydridoalkyl complex with an organic halogenating agent such as a tetrahalomethane or a haloform of the formulas: CX'X''X'''X'''' or CHX'X''X''' wherein X', X'', X'", X"" represent halogens selected from bromine, iodine or chlorine atom, at a temperature in the range of about -60.degree. to -17.degree. C. to form the corresponding haloalkyl complex of step (a) having the formula: CpRhPMe.sub.3 RX; and, (c) reacting said haloalkyl complex formed in (b) with halogen (X.sub.2) at a temperature in the range of about -60.degree. to 25.degree. C. (i.e., ambient) to form a functional haloalkyl compound.

Bergman, Robert G. (Kensington, CA); Janowicz, Andrew H. (Wilmington, DE); Periana, Roy A. (Berkeley, CA)

1988-01-01T23:59:59.000Z

285

Process for functionalizing alkanes  

DOE Patents (OSTI)

Process for functionalizing saturated hydrocarbons comprising: (a) reacting said saturated hydrocarbons of the formula: R.sub.1 H wherein H represents a hydrogen atom; and R.sub.1 represents a saturated hydrocarbon radical, with a metal complex of the formula: CpRh[P(R.sub.2).sub.3 ]H.sub.2 wherein Cp represents a cyclopentadienyl or alkylcyclopentadienyl radical; Rh represents a rhodium atom; P represents a phosphorus atom; R.sub.2 represents a hydrocarbon radical; H represents a hydrogen atom, in the presence of ultraviolet radiation to form a hydridoalkyl complex of the formula: CpRh[P(R.sub.2).sub.3 ](R.sub.1)H (b) reacting said hydridoalkyl complex with an organic halogenating agent such as a tetrahalomethane or a haloform of the formulas: CX'X''X'''X'''' or CHX'X''X''' wherein X', X'', X'", X"" represent halogens selected from bromine, iodine or chlorine atom, at a temperature in the range of about -60.degree. to -17.degree. C. to form the corresponding haloalkyl complex of step (a) having the formula: CpRhPMe.sub.3 RX; and, (c) reacting said haloalkyl complex formed in (b) with halogen (X.sub.2) at a temperature in the range of about -60.degree. to 25.degree. C. (i.e., ambient) to form a functional haloalkyl compound.

Bergman, Robert G. (Kensington, CA); Janowicz, Andrew H. (Wilmington, DE); Periana, Roy A. (Berkeley, CA)

1988-01-01T23:59:59.000Z

286

Review Functional hemodynamic monitoring  

E-Print Network (OSTI)

Hemodynamic monitoring is a central component of intensive care. Patterns of hemodynamic variables often suggest cardiogenic, hypovolemic, obstructive, or distributive (septic) etiologies to cardiovascular insufficiency, thus defining the specific treatments required. Monitoring increases in invasiveness, as required, as the risk for cardiovascular instability-induced morbidity increases because of the need to define more accurately the diagnosis and monitor the response to therapy. Monitoring is also context specific: requirements during cardiac surgery will be different from those in the intensive care unit or emergency department. Solitary hemodynamic values are useful as threshold monitors (e.g. hypotension is always pathological, central venous pressure is only elevated in disease). Some hemodynamic values can only be interpreted relative to metabolic demand, whereas others have multiple meanings. Functional hemodynamic monitoring implies a therapeutic application, independent of diagnosis such as a therapeutic trial of fluid challenge to assess preload responsiveness. Newer methods for assessing preload responsiveness include monitoring changes in central venous pressure during spontaneous inspiration, and variations in arterial pulse pressure, systolic pressure, and aortic flow variation in response to vena caval collapse during positive pressure ventilation or passive leg raising. Defining preload responsiveness using these functional measures, coupled to treatment protocols, can improve outcome from critical illness. Potentially, as these and newer, less invasive hemodynamic measures are validated, they could be incorporated into such protocolized care in a costeffective manner.

Michael R Pinsky; Didier Payen

2005-01-01T23:59:59.000Z

287

Computing Legacy Software Behavior to Understand Functionality and Security Properties: An IBM/370 Demonstration  

Science Conference Proceedings (OSTI)

Organizations maintaining mainframe legacy software can benefit from code modernization and incorporation of security capabilities to address the current threat environment. Oak Ridge National Laboratory is developing the Hyperion system to compute the behavior of software as a means to gain understanding of software functionality and security properties. Computation of functionality is critical to revealing security attributes, which are in fact specialized functional behaviors of software. Oak Ridge is collaborating with MITRE Corporation to conduct a demonstration project to compute behavior of legacy IBM Assembly Language code for a federal agency. The ultimate goal is to understand functionality and security vulnerabilities as a basis for code modernization. This paper reports on the first phase, to define functional semantics for IBM Assembly instructions and conduct behavior computation experiments.

Linger, Richard C [ORNL; Pleszkoch, Mark G [ORNL; Prowell, Stacy J [ORNL; Sayre, Kirk D [ORNL; Ankrum, Scott [MITRE Corporation

2013-01-01T23:59:59.000Z

288

Translating Nondeterministic Functional Language based on Attribute Grammars into Java  

E-Print Network (OSTI)

Knowledge-based systems are suitable for realizing advanced functions that require domain-specific expert knowledge, while knowledge representation languages and their supporting environments are essential for realizing such systems. Although Prolog is useful and effective in realizing such a supporting environment, the language interoperability with other implementation languages, such as Java, is often an important issue in practical application development. This paper describes the techniques for translating a knowledge representation language that is a nondeterministic functional language based on attribute grammars into Java. The translation is based on binarization and the techniques proposed for Prolog to Java translation although the semantics are different from those of Prolog. A continuation unit is introduced to handle continuation efficiently, while the variable and register management on backtracking is simplified by using the single and unidirectional assignment features of variables. An experim...

Umeda, Masanobu; Sone, Hiroaki; Katamine, Keiichi

2011-01-01T23:59:59.000Z

289

BNL | Center for Functional Nanomaterials (CFN)  

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

Using CFN Facilities: Arrival and Departure Preparing for Arrival Training Safety is essential aspect of all work done at the CFN. Appropriate training is required for all facility...

290

GIAC Security Essentials Certification (GSEC) Practical Assignment Version 1.4b  

E-Print Network (OSTI)

While working for a multinational Original Equipment Manufacturer as a network administrator, the internal network degraded during a worm attack, management wanted the network to be assessed. The network team had been assigned to conduct a risk assessment of our companys internal network security. We started prioritizing the risks by classifying them as at high, medium and low. The team then recommended a few solutions to address these risks. After publishing the risk assessment report, the team identified a few areas to be fixed as soon as possible. First, the Wide Area Network (WAN) and Local Area Network (LAN) were not fully secured. Second, there was no separation of network services by function. Third, we audited the office environment and found Rogue Wireless Access Points connecting to the office network. Fourth, we found development labs network having many vulnerable workstations and servers. To start, we decided to secure our WAN and deploy IPSec VPN technology on top of a frame-relay PVC network with Quality of Service (QoS) Key fingerprint = AF19 FA27 2F94 998D FDB5 DE3D F8B5 06E4 A169 4E46

Jia Cherng Lee; Ded Fb E A E

2003-01-01T23:59:59.000Z

291

Hierarchical Structure for function approximation using radial basis function  

Science Conference Proceedings (OSTI)

The hierarchial network proposed (Multi-RBFNN), is composed of complete Radial Basis Function Neural Networks (RBFNNs) that are in charge of a reduced set of input variables with the property of which every Sub-RBFNN can take charge of a set of input ... Keywords: function approximation, hierarchical architectures, input variable selection, radial bases functions

A. Awad; H. Pomares; I. Rojas; L. J. Herrera; A. Guillen; O. Valenzuela

2005-12-01T23:59:59.000Z

292

Guidance on Inherently Governmental Functions | Department of...  

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

Inherently Governmental Functions Guidance on Inherently Governmental Functions Federal law prohibits contractors from performing "inherently governmental functions." This guidance...

293

Functional compression : theory and application  

E-Print Network (OSTI)

We consider the problem of functional compression. The objective is to separately compress possibly correlated discrete sources such that an arbitrary deterministic function of those sources can be computed given the ...

Doshi, Vishal D. (Vishal Devendra)

2008-01-01T23:59:59.000Z

294

Purely functional lazy nondeterministic programming  

Science Conference Proceedings (OSTI)

Functional logic programming and probabilistic programming have demonstrated the broad benefits of combining laziness (nonstrict evaluation with sharing of the results) with nondeterminism. Yet these benefits are seldom enjoyed in functional programming ...

Sebastian Fischer; Oleg Kiselyov; Chung-chieh Shan

2011-09-01T23:59:59.000Z

295

Network coding for function computation  

E-Print Network (OSTI)

K. Zeger. Unachievability of Network Cod- ing Capacity. IEEEto target function f is C cod (N , f ) = sup k : ? (k, n)target function f , then C cod (N , f ) ? min-cut(N , f ).

Appuswamy, Rathinakumar

2011-01-01T23:59:59.000Z

296

The Parabolic-Trigonometric Functions  

E-Print Network (OSTI)

The parabolic functions are introduced in analogy to the circular and hyperbolic cases. We discuss the relevant properties, the geometrical interpretation and touch on possible generalizations and their link with the modular elliptic functions.

G. Dattoli; M. Migliorati; M. Quattromini; P. E. Ricci

2011-02-08T23:59:59.000Z

297

Sustainable Energy Solutions Task 2.0: Wind Turbine Reliability and Maintainability Enhancement through System-wide Structure Health Monitoring and Modifications to Rotating Components  

DOE Green Energy (OSTI)

EXECUTIVE SUMARRY An evaluation of nondestructive structural health monitoring methods was completed with over 132 documents, 37 specifically about wind turbines, summarized into a technology matrix. This matrix lists the technology, what can be monitored with this technology, and gives a short summary of the key aspects of the technology and its application. Passive and active acoustic emission equipment from Physical Acoustics Corp. and Acellent Technologies have been evaluated and selected for use in experimental state loading and fatigue tests of composite wind turbine blade materials. Acoustic Emission (AE) and Active Ultrasonic Testing (AUT), were applied to composite coupons with both simulated and actual damage. The results found that, while composites are more complicated in nature, compared to metallic structures, an artificial neural network analysis could still be used to determine damage. For the AE system, the failure mode could be determined (i.e. fiber breakage, delamination, etc.). The Acellent system has been evaluated to work well with composite materials. A test-rig for reliability testing of the rotating components was constructed. The research on the types of bearings used in the wind turbines indicated that in most of the designs, the main bearings utilized to support the shaft are cylindrical roller bearings. The accelerated degradation testing of a population of bearings was performed. Vibration and acoustic emission data was collected and analyzed in order to identify a representative degradation signal for each bearing to identify the initiation of the degradation process in the bearings. Afterwards, the RMS of the vibration signal from degradation initiation up to the end of the useful life of the bearing was selected to predict the remaining useful life of the bearing. This step included fitting Autoregressive Moving Average (ARMA) models to the degradation signals and approximating the probability distribution function (PDF) of remaining useful life based on the results of Monte-Carlo simulation of the ARMA models. This step was performed for different percentages of the degradation signal of each bearing. The accuracy of the proposed approach then was assessed by comparing the actual life of the bearing and the estimated life of the bearing from the developed models. The results were impressive and indicated that the accuracy of the models improved as more data was utilized in developing the ARMA models (we get closer to the end of the life of the bearing).

Janet M Twomey, PhD

2010-04-30T23:59:59.000Z

298

Model Driven Security Functional Testing  

Science Conference Proceedings (OSTI)

Model Driven Security Functional Testing. Summary: Model-Driven Engineering (MDE) is emerging as a promising approach ...

2013-01-15T23:59:59.000Z

299

Tissue architecture: the ultimate regulator of breast epithelial function  

SciTech Connect

A problem in developmental biology that continues to take center stage is how higher organisms generate diverse tissues and organs given the same cellular genotype. In cell and tumor biology, the key question is not the production of form, but its preservation: how do tissues and organs maintain homeostasis, and how do cells within tissues lose or overcome these controls in cancer? Undoubtedly, mechanisms that maintain tissue specificity should share features with those employed to drive formation of the tissues. However, they are unlikely to be identical. At a simplistic level, developmental pathways may be thought of as a series of extremely rapid short-term events. Each new step depends on what came before, and the outcome is the organism itself at birth. All organs, with a few notable exceptions, such as the mammary gland and the brain, 'arrive' together and are complete when the organism is born. In mice and humans, these events occur in a mere 21 days and 9 months respectively. The stability of the differentiated state and the homeostasis of the organism, on the other hand, will last 40-110 times longer. How does the organism achieve this feat? How are tissues maintained? These questions also relate fundamentally to how tissues become malignant and, although not discussed here, to aging. While there is much literature on differentiation - loosely defined as the gain of a single or a series of functions - we know much less about the forces and the pathways that maintain organ morphology and function as a unit. This may be partly because it is difficult to study a tissue as a unit in vivo and there are few techniques that allow maintenance of organs in vitro long enough and in such a way as to make cell and molecular biology experiments possible. Techniques for culturing cells in three-dimensional gels (3D) as a surrogate for tissues, however, have been steadily improving and the method is now used by several laboratories. In this commentary we discuss the following: first, how our laboratory came to develop a model of the mammary gland acinus; second, what this model has told us about mechanisms that govern tissue specificity and malignancy; and third, possible directions for future studies. We summarize the evidence for the central role of ECM signaling in the maintenance of mammary function in culture and (more briefly) its role in tumorigenesis. This is followed by a discussion of the role that tissue architecture and tissue polarity (as opposed to cell polarity) may play in these processes. In an elegantly written and reasoned essay, Kirschner et al. coined the new science of developmental biology 'molecular vitalism'. They framed new concepts for self-organization as well as schemes for information flow in biological organization. Rao et al. reviewed and elaborated on differential-equation-based models of biochemical reaction networks and intracellular noise, with emphasis on bacteria and phage. Similarly, Hartwell et al. discussed the synergy between experiment and theory in elucidating 'modules' - collections of interacting molecules - and in unraveling how these modules collaborate to perform cellular functions such as signal transduction. We believe that many of these ideas will also be applicable to the maintenance of tissue specificity. As much as we agree with Kirschner et al. regarding the limitations of the machine analogy to biological systems, we conclude with thoughts on how we may proceed to model the complex tissue networks that govern breast tissue architecture. We suggest that our understanding of the structure and function of breast tissue would benefit from examining recent techniques for modeling large complex networks such as the World Wide Web and the Internet backbone among others.

Bissell, Mina J; Rizki, Aylin; Mian, Saira

2003-10-20T23:59:59.000Z

300

Functional integral approach to semi-relativistic Pauli-Fierz models  

E-Print Network (OSTI)

By means of functional integrations spectral properties of semi-relativistic Pauli-Fierz Hamiltonians in quantum electrodynamics is considered. Two self-adjoint extensions of a semi-relativistic Pauli-Fierz Hamiltonian are defined. An essential self-adjointness, a spatial decay of bound states, a Gaussian domination of the ground state and the existence of a measure associated with the ground state are shown.

Fumio Hiroshima

2013-04-17T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

SURFACE SYMMETRY ENERGY OF NUCLEAR ENERGY DENSITY FUNCTIONALS  

Science Conference Proceedings (OSTI)

We study the bulk deformation properties of the Skyrme nuclear energy density functionals. Following simple arguments based on the leptodermous expansion and liquid drop model, we apply the nuclear density functional theory to assess the role of the surface symmetry energy in nuclei. To this end, we validate the commonly used functional parametrizations against the data on excitation energies of superdeformed band-heads in Hg and Pb isotopes, and fission isomers in actinide nuclei. After subtracting shell effects, the results of our self-consistent calculations are consistent with macroscopic arguments and indicate that experimental data on strongly deformed configurations in neutron-rich nuclei are essential for optimizing future nuclear energy density functionals. The resulting survey provides a useful benchmark for further theoretical improvements. Unlike in nuclei close to the stability valley, whose macroscopic deformability hangs on the balance of surface and Coulomb terms, the deformability of neutron-rich nuclei strongly depends on the surface-symmetry energy; hence, its proper determination is crucial for the stability of deformed phases of the neutron-rich matter and description of fission rates for r-process nucleosynthesis.

Nikolov, N; Schunck, N; Nazarewicz, W; Bender, M; Pei, J

2010-12-20T23:59:59.000Z

302

Neutron skin uncertainties of Skyrme energy density functionals  

E-Print Network (OSTI)

Background: Neutron-skin thickness is an excellent indicator of isovector properties of atomic nuclei. As such, it correlates strongly with observables in finite nuclei that depend on neutron-to-proton imbalance and the nuclear symmetry energy that characterizes the equation of state of neutron-rich matter. A rich worldwide experimental program involving studies with rare isotopes, parity violating electron scattering, and astronomical observations is devoted to pinning down the isovector sector of nuclear models. Purpose: We assess the theoretical systematic and statistical uncertainties of neutron-skin thickness and relate them to the equation of state of nuclear matter, and in particular to nuclear symmetry energy parameters. Methods: We use the nuclear superfluid Density Functional Theory with several Skyrme energy density functionals and density dependent pairing. To evaluate statistical errors and their budget, we employ the statistical covariance technique. Results: We find that the errors on neutron skin increase with neutron excess. Statistical errors due to uncertain coupling constants of the density functional are found to be larger than systematic errors, the latter not exceeding 0.06 fm in most neutron-rich nuclei across the nuclear landscape. The single major source of uncertainty is the poorly determined slope L of the symmetry energy that parametrizes its density dependence. Conclusions: To provide essential constraints on the symmetry energy of the nuclear energy density functional, next-generation measurements of neutron skins are required to deliver precision better than 0.06 fm.

M. Kortelainen; J. Erler; W. Nazarewicz; N. Birge; Y. Gao; E. Olsen

2013-07-16T23:59:59.000Z

303

Functional Composites: Fluorescent Carbon Nanotubes in Silica ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, Functional and Innovative Composites. Presentation Title, Functional...

304

Supply Function Equilibria: Step Functions and Continuous Representations  

E-Print Network (OSTI)

and Daniel Ralph In most wholesale electricity markets generators must submit step- function offers of supply to a uniform price auction, and the market is cleared at the price of the most expensive offer needed to meet realised demand. Such markets... functions and continuous representations1 Pr Holmberg,2 David Newbery3 and Daniel Ralph4 31 December 2008 Abstract In most wholesale electricity markets generators must submit step-function offers of supply to a uniform price auction...

Holmberg, P; Newbery, David; Ralph, Daniel

305

The LAMP-like protein p67 plays an essential role in the lysosome of African trypanosomes  

E-Print Network (OSTI)

: ( ) ( ) ( ) ( ) U c U x U U x p p c x + = d dcw w Note that because U is a function of S, in general

Sheridan, Jennifer

306

Modeling of the charging characteristic of linear-type superconducting power supply using granular-based radial basis function neural networks  

Science Conference Proceedings (OSTI)

Since superconducting coils cause the current decay due to connection resistance and intrinsic characteristic in the persistent current mode, various current compensations should be required to maintain stable property in the superconducting magnet system. ... Keywords: Charging characteristic, Fuzzy C-means (FCM) clustering method, Granular-based radial basis function neural network, Information granules, K-means clustering, Linear-type superconducting power supply

H. -S. Park; W. Pedrycz; Y. -D. Chung; S. -K. Oh

2012-01-01T23:59:59.000Z

307

This paper proposes an architecture where end-systems implement multicast functionalities and show that it performs close to performance behavior of IP Multicast. IP Multicast has  

E-Print Network (OSTI)

changes at infrastructure level. This paper addresses these issues of IP multicast as end-systems maintain the state, and support high level functionalities by lever- aging unicast solutions. Further performance, and new link is added if utility gain of adding a link is greater than a thresold. Similarly, members

Akella, Aditya

308

A Novel Fold in the Tral Relaxase-Helicase C-Terminal Domain Is Essential for Conjugative DNA Transfer  

Science Conference Proceedings (OSTI)

TraI relaxase-helicase is the central catalytic component of the multiprotein relaxosome complex responsible for conjugative DNA transfer (CDT) between bacterial cells. CDT is a primary mechanism for the lateral propagation of microbial genetic material, including the spread of antibiotic resistance genes. The 2.4-{angstrom} resolution crystal structure of the C-terminal domain of the multifunctional Escherichia coli F (fertility) plasmid TraI protein is presented, and specific structural regions essential for CDT are identified. The crystal structure reveals a novel fold composed of a 28-residue N-terminal {alpha}-domain connected by a proline-rich loop to a compact {alpha}/{beta}-domain. Both the globular nature of the {alpha}/{beta}-domain and the presence as well as rigidity of the proline-rich loop are required for DNA transfer and single-stranded DNA binding. Taken together, these data establish the specific structural features of this noncatalytic domain that are essential to DNA conjugation.

Guogas, Laura M.; Kennedy, Sarah A.; Lee, Jin-Hyup; Redinbo, Matthew R.; (UNC)

2009-06-04T23:59:59.000Z

309

High-Level Functional and Operational Requirements for the Advanced Fuel Cycle Facilty  

SciTech Connect

High-Level Functional & Operational Requirements for the AFCF -This document describes the principal functional and operational requirements for the proposed Advanced Fuel Cycle Facility (AFCF). The AFCF is intended to be the world's foremost facility for nuclear fuel cycle research, technology development, and demonstration. The facility will also support the near-term mission to develop and demonstrate technology in support of fuel cycle needs identified by industry, and the long-term mission to retain and retain U.S. leadership in fuel cycle operations. The AFCF is essential to demonstrate a more proliferation-resistant fuel cycle and make long-term improvements in fuel cycle effectiveness, performance and economy.

Charles Park

2006-12-01T23:59:59.000Z

310

Methods of making functionalized nanorods  

Science Conference Proceedings (OSTI)

A process for forming functionalized nanorods. The process includes providing a substrate, modifying the substrate by depositing a self-assembled monolayer of a bi-functional molecule on the substrate, wherein the monolayer is chosen such that one side of the bi-functional molecule binds to the substrate surface and the other side shows an independent affinity for binding to a nanocrystal surface, so as to form a modified substrate. The process further includes contacting the modified substrate with a solution containing nanocrystal colloids, forming a bound monolayer of nanocrystals on the substrate surface, depositing a polymer layer over the monolayer of nanocrystals to partially cover the monolayer of nanocrystals, so as to leave a layer of exposed nanocrystals, functionalizing the exposed nanocrystals, to form functionalized nanocrystals, and then releasing the functionalized nanocrystals from the substrate.

Gur, Ilan (San Francisco, CA); Milliron, Delia (Berkeley, CA); Alivisatos, A. Paul (Oakland, CA); Liu, Haitao (Berkeley, CA)

2012-01-10T23:59:59.000Z

311

Functions of the cask maintenance facility: A white paper  

SciTech Connect

The shipping cask systems are the mobile components of the transportation system, designed to safely transport spent nuclear fuel between different facilities under both normal and accident conditions. The cask system will consist of the heavily shielded cask, the cask transport vehicle (truck trailer or railcar), and any associated ancillary equipment (covers, impact limiters, lifting devices, etc.). The cask and certain parts of the cask system must be operated within the limits imposed by a certificate of compliance (COC) granted by the Nuclear Regulatory Commission (NRC). Each cask system must transport spent fuel safely during the life of the system. To maintain the operational effectiveness and safety of the cask systems, a cask maintenance facility (CMF) will be included as an integral part of the transportation system. The planning activity of the transportation system and the design effort of the CMF require that the functions to be performed by the CMF be explicitly defined. The purpose of this paper is to (1) define the potential transportation system functions to be performed at the CMF; (2) examine the impact of this functional definition on the overall transportation system; (3) identify any unresolved issues concerning the interaction of the CMF with other elements of the transportation system; and (4) make recommendations to resolve any unresolved issues so that decisions can be made early in the transportation system planning process.

1987-07-21T23:59:59.000Z

312

Aerogels: Chemical Functionalization of Nanostructured ...  

Summary. There exists a need for durable and thin functional coatings to utilize the afforded surface area of highly porous ceramic materials. ...

313

BNL Center for Functional Nanomaterials  

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

Science and Cataylsis Xiao Tong is a staff scientist in the Interface Science and Catalysis group of the Center for Functional Nanomaterials at Brookhaven National Laboratory....

314

Process management using component thermal-hydraulic function classes  

DOE Patents (OSTI)

A process management expert system for a nuclear, chemical or other process is effective following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. The search process is based upon mass, momentum and energy conservation principles so that qualitative thermal-hydraulic fundamental principles are satisfied for new system configurations. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced.

Morman, James A.; Wei, Thomas Y.C.; Reifman, Jaques

1997-12-01T23:59:59.000Z

315

Generalized Transforms and Special Functions  

E-Print Network (OSTI)

We study the properties of different type of transforms by means of operational methods and discuss the relevant interplay with many families of special functions. We consider in particular the binomial transform and its generalizations. A general method, based on the use of the Fourier transform technique, is proposed for the study of the properties of functions of operators.

G. Dattoli; E. Sabia

2010-10-08T23:59:59.000Z

316

Generalized series of Bessel functions  

Science Conference Proceedings (OSTI)

Known series of Bessel functions, currently available in handbooks, and many of Neumann type, are generalized to arbitrary order. The underlying result is a Poisson formula due to Titchmarsh. This formula gives rise to a Neumann series involving modified ... Keywords: Bessel functions, Neumann series

A. Al-Jarrah; K. M. Dempsey; M. L. Glasser

2002-06-01T23:59:59.000Z

317

Dual function conducting polymer diodes  

DOE Patents (OSTI)

Dual function diodes based on conjugated organic polymer active layers are disclosed. When positively biased the diodes function as light emitters. When negatively biased they are highly efficient photodiodes. Methods of preparation and use of these diodes in displays and input/output devices are also disclosed.

Heeger, Alan J. (Santa Barbara, CA); Yu, Gang (Goleta, CA)

1996-01-01T23:59:59.000Z

318

Mixtures of truncated basis functions  

Science Conference Proceedings (OSTI)

In this paper we propose a framework, called mixtures of truncated basis functions (MoTBFs), for representing general hybrid Bayesian networks. The proposed framework generalizes both the mixture of truncated exponentials (MTEs) framework and the Mixture ... Keywords: Approximations, Hybrid Bayesian networks, Inference, Mixtures of truncated basis functions, Mixtures of truncated exponentials

Helge Langseth; Thomas D. Nielsen; Rafael Rum?; Antonio Salmern

2012-02-01T23:59:59.000Z

319

Window Functions for CMB Experiments  

E-Print Network (OSTI)

We discuss the applicability and derivation of window functions for cosmic microwave background experiments on large and intermediate angular scales. These window functions describe the response of the experiment to power in a particular mode of the fluctuation spectrum. We give general formulae, illustrated with specific examples, for the most common observing strategies.

Martin White; Mark Srednicki

1994-02-15T23:59:59.000Z

320

Functionalized nanoparticles for sensor applications.  

Science Conference Proceedings (OSTI)

We will describe our work on functionalized arrays of nanoparticles crosslinked with short conducting molecules that contain sensing functionalities. These bridging ligands modulate their conductivity based on their interaction with analytes. This functionalized nanoparticles organic ligand composite material once it is assembled between nanogaps electrodes will provide nanosized sensors that can be easily interrogated. These nanogap sensors will be engineered so that they can be fabricated into arrays of different sensor elements. This project consists of a number of different requirements that must be met in order to enable the use of functionalized nanoparticles for sensor applications. The first requirement is the appropriately functionalized nanoparticle. The second is a method to assemble the particles. The third requirement is the generation of a nanogap to contain the nanoparticles. The successes in each of these areas will be discussed as will the sensing behavior of the final films.

Simonson, Robert Joseph; Childs, Kenton David; Howell, Stephen Wayne; Dirk, Shawn M.; Wheeler, David Roger

2005-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Building Technologies Office: Operate and Maintain Efficient...  

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

strategy for improving energy efficiency in commercial buildings. Every building's energy consumption can benefit from rigorous operations and maintenance (O&M) practices....

322

The original signatures are maintained on file  

Science Conference Proceedings (OSTI)

... JEA's water and wastewater operation consists of ... non- regional sewer treatment plants comprise ... by the Federal Energy Regulatory Commission ...

2013-04-09T23:59:59.000Z

323

Building Technologies Office: Operate and Maintain Efficient...  

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

Commercial Buildings Photo of an equipment room in a high-rise commercial office building with red and green equipment. Proper O&M is a cost-effective strategy for...

324

Establishing and Maintaining Effective Energy Management Practices  

E-Print Network (OSTI)

SAIC has developed, and has delivered over the past 4 years, training and tools to industry for them to implement energy management practices. Practical Energy Management (PEM) has been delivered to over 1000 industry professionals, arming them with information and workable practices to put energy management in place in their facilities, and their organizations. A presentation on the training content and the many ways in which it can be delivered can be made to promote better energy management practices.

Giffin, T. M.

2008-01-01T23:59:59.000Z

325

June 2005 Proper Packaging Required to Maintain ...  

Science Conference Proceedings (OSTI)

... as follows: 1. Wrap in multiple layers of plastic bubble packaging material; 2 ... are another type of standard that is difficult to safely package. ...

2010-12-16T23:59:59.000Z

326

Virtual Appliances for Deploying and Maintaining Software  

E-Print Network (OSTI)

This paper attempts to address the complexity of system administration by making the labor of applying software updates independent of the number of computers on which the software is run. Complete networks of machines are packaged up as data; we refer to them as virtual appliances. The publisher of an appliance controls the software installed on the appliance, from the operating system to the applications, and is responsible for keeping the appliance up to date. These appliances can be configured by users to fit their needs; the configuration is captured such that it can be reapplied automatically when the appliance's software is updated. We have developed a compute utility, called the Collective, which assigns virtual appliances to hardware dynamically and automatically. By keeping software up to date, our approach prevents security break-ins due to fixed vulnerabilities.

Constantine Sapuntzakis David; David Brumley; Ramesh Chandra; Nickolai Zeldovich; Jim Chow; Monica S. Lam; Mendel Rosenblum

2003-01-01T23:59:59.000Z

327

Maintainability features of the compact ignition tokamak  

SciTech Connect

Viewgraphs presented at the 7th topical meeting on the Technology of Fusion Energy are included. (MOW)

Spampinato, P.T.

1986-01-01T23:59:59.000Z

328

Rheological properties essential for the atomization of coal water slurries (CWS). Quarterly progress report, September 15, 1992--December 15, 1992  

SciTech Connect

During the previous quarter, it was noted that understanding the rheology of polymeric additives used in enhancing the stability of the CWS was essential in meeting the project objectives. Thus, further review of the literature was carried out to gain information on the rheology of polymeric additives, particularly at high shear rates. Philippoff and Hess [1] reported the existence of four distinct flow regions in the behavior of flow curve analysis of polymer solutions (Figure 1). These regions are characterized by (1) A Newtonian Region; (2) A non-Newtonian pseudoplastic region; (3) A second Newtonian region at high shear rates 10{sup 5} to 10{sup 6} sec{sup {minus}1}; (4) and a region of steepening slope identified as the onset of turbulence. Efforts during this past quarter were therefore directed towards the study of high shear rheology of the CWS.

Ohene, F.

1992-12-31T23:59:59.000Z

329

Interplay between function and structure in complex networks  

E-Print Network (OSTI)

We show that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our results offer an explanation as to why so many diverse species of network structure arise in Nature (e.g. fungal systems) under essentially the same environmental conditions. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. We then extend our analysis by introducing a novel renormalization scheme involving cost motifs, to describe analytically the average shortest path across multiple-ring-and-hub networks. As a consequence, we uncover a 'skin effect' whereby the structure of the inner multi-ring core can cease to play any role in terms of determining the average shortest path across the network.

Jarrett, T C; Fricker, M; Johnson, N F; Jarrett, Timothy C.; Ashton, Douglas J.; Fricker, Mark; Johnson, Neil F.

2006-01-01T23:59:59.000Z

330

A pair distribution function analysis of zeolite beta  

SciTech Connect

We describe the structural refinement of zeolite beta using the local structure obtained with the pair distribution function (PDF) method. A high quality synchrotron and two neutron scattering datasets were obtained on two samples of siliceous zeolite beta. The two polytypes that make up zeolite beta have the same local structure; therefore refinement of the two structures was possible using the same experimental PDF. Optimized structures of polytypes A and B were used to refine the structures using the program PDFfit. Refinements using only the synchrotron or the neutron datasets gave results inconsistent with each other but a cyclic refinement with the two datasets gave a good fit to both PDFs. The results show that the PDF method is a viable technique to analyze the local structure of disordered zeolites. However, given the complexity of most zeolite frameworks, the use of both X-ray and neutron radiation and high-resolution patterns is essential to obtain reliable refinements.

Martinez-Inesta, M.M.; Peral, I.; Proffen, T.; Lobo, R.F. (Delaware); (LANL)

2010-07-20T23:59:59.000Z

331

Convertibility of Function Points into COSMIC Function Points: A study using Piecewise Linear Regression  

Science Conference Proceedings (OSTI)

Background: COSMIC Function Points and traditional Function Points (i.e., IFPUG Function Points and more recent variation of Function Points, such as NESMA and FISMA) are probably the best known and most widely used Functional Size Measurement methods. ... Keywords: COSMIC Function Points, Data analysis, Function Point analysis, Functional Size Measurement, Functional size measure convertibility, Outliers

Luigi Lavazza; Sandro Morasca

2011-08-01T23:59:59.000Z

332

Genetic and Functional Analysis of Siderophores in Trichoderma virens  

E-Print Network (OSTI)

Trichoderma virens, an avirulent plant symbiotic fungus ubiquitous in soils worldwide, is remarkable as it induces systemic resistance in plants, enhances plant growth, and acts as a mycoparasite of plant-pathogenic fungi. For all microorganisms, the ability to acquire environmental iron is essential for fitness and survival. The ability of T. virens to acquire iron from the soil determines its success as a beneficial microorganism for plants and saprophyte of organic material. The most successful strategy developed by microbes for iron acquisition has been the production of siderophores, secondary metabolites that bind iron tightly and are produced in both intracellular and extracellular forms. Extensive genomic analysis of the genome sequence of T. virens revealed the presence of three genes, Tex10, Tex20, and Tex21 that encode siderophore-producing enzymes known as non-ribosomal peptide synthetases (NRPSs), but their regulation and function are largely unknown. To study the function of these secondary metabolites in the life strategy of T. virens, two genes encoding the NRPSs for the biosynthesis of siderophores (Tex10 and Tex20) were disrupted by fungal transformation. While the Tex20 mutants are phenotypically very similar to wild type, the Tex10 mutant shows some striking differences. Additionally, the Tex10 mutant shows less ability to respond to oxidative stress. Gene expression of these NRPSencoding genes was also analyzed in wild type and mutant strains. Siderophore production reaches a maximum at three days in iron depleted medium, while cultures grown in ferrated medium show a dramatic reduction in siderophore production, as well as NRPS gene expression. Correspondingly, several NRPS-encoding gene deletion strains reveal both lower mRNA and siderophore levels. Siderophore production at the peak expression time was corroborated by High Performance Liquid Chromatography. This information is essential for the enhancement of the beneficial capabilities of T. virens for global agricultural improvement.

Vittone, Gloria

2008-05-21T23:59:59.000Z

333

Essential Software Architecture  

Science Conference Proceedings (OSTI)

A minor revision to my 2006 book that was written while I worked at NICTA, covering the basics of software architecture for distributed systems.

Gorton, Ian

2011-05-05T23:59:59.000Z

334

Generalized essential telangiectasia  

E-Print Network (OSTI)

patient was started on oral doxycycline and was referred forTreatment with oral doxycycline was initiated. The patient7 weeks of therapy with doxycycline, as might have been

Karen, Julie K; Mengden, Stephanie J; Kamino, Hideko; Shupack, Jerome L

2008-01-01T23:59:59.000Z

335

Generalized essential telangiectasia  

E-Print Network (OSTI)

minocycline, and doxycycline. However, a recent reportMMPs), a trial of doxycycline was initiated since

Spratt, Elizabeth A Gordon; DeFelice, Taylor; O'Reilly, Kathryn; Robinson, Maria; Patel, Rishi R; Sanchez, Miguel

2012-01-01T23:59:59.000Z

336

Measuring the capacity of a port system : a case study on a Southeast Asian port  

E-Print Network (OSTI)

As economies develop and trade routes change, investment in port infrastructure is essential to maintain the necessary capacity for an efficiently functioning port system and to meet expected demand for all types of cargo. ...

Salminen, Jason Bryan

2013-01-01T23:59:59.000Z

337

Food Structure & Functionality Forum Newsletter January 2013  

Science Conference Proceedings (OSTI)

Read the January 2013 Food Structure & Functionality Forum newsletter. Food Structure & Functionality Forum Newsletter January 2013 Food Structure & Functionality Forum Division division divisions food materials food structure Food Structure & Functional

338

Smarandache Type Function Obtained by Duality  

E-Print Network (OSTI)

In this paper we extend the Smarandache function from the set $N*$ of positive integers to the set $Q$ pf rational numbers. Using the inverse formula, this function is also regarded as a generating function. We put in evidence a procedure to construct a (numerical) function starting from a given function in two particular cases. Also, connections between this function and Euler totient function as well as with Riemann zeta function are established.

C. Dumitrescu; N. Virlan; St. Zamfir; E. Radescu; N. Radescu; F. Smarandache

2007-06-19T23:59:59.000Z

339

Distributed Anonymous Discrete Function Computation  

E-Print Network (OSTI)

We propose a model for deterministic distributed function computation by a network of identical and anonymous nodes. In this model, each node has bounded computation and storage capabilities that do not grow with the network ...

Tsitsiklis, John N.

340

Some Anisotropic Viscoelastic Green Functions  

E-Print Network (OSTI)

In this paper, we compute the closed form expressions of elastody- namic Green functions for three different viscoelastic media with simple type of anisotropy. We follow Burridge et al. [Proc. Royal Soc. of London. 440(1910): (1993)] to express unknown Green function in terms of three scalar functions $\\phi_i$, by using the spectral decomposition of the Christoffel tensor associated with the medium. The problem of computing Green function is, thus reduced to the resolution of three scalar wave equations satisfied by $\\phi_i$, and subsequent equations with $\\phi_i$ as source terms. To describe viscosity effects, we choose an empirical power law model which becomes well known Voigt model for quadratic frequency losses.

Elie Bretin; Abdul Wahab

2011-02-19T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Methods for functional brain imaging  

E-Print Network (OSTI)

Magnetic resonance imaging (MRI) has demonstrated the potential for non-invasive mapping of structure and function (fMRI) in the human brain. In this thesis, we propose a series of methodological developments towards ...

Witzel, Thomas, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

342

Functional Requirements and Use Cases  

E-Print Network (OSTI)

iously also beneficial in information systems development, staging core functionality for early releases and adding features over the course of several subsequent releases. In many industries, companies produce product lines with different cost/feature variations per product in the line, and product families that include a number of product lines targeted at somewhat different markets or usage situations. What makes these product lines part of a family, are some common elements of functionality and identity. A platform-based development approach leverages this commonality, utilizing a set of reusable assets across the family. These strategies have important implications for software architecture. In particular, it is not just the functional requirements of the first product or release that must be supported by the architecture. The functional requirements of early (nearly concurrent) releases need to be explicitly taken into account. Later releases are accommodated through architectu

System Has Properties; Ruth Malan; Dana Bredemeyer

2005-01-01T23:59:59.000Z

343

Functional capability of piping systems  

SciTech Connect

General Design Criterion I of Appendix A to Part 50 of Title 10 of the Code of Federal Regulations requires, in part, that structures, systems, and components important to safety be designed to withstand the effects of earthquakes without a loss of capability to perform their safety function. ne function of a piping system is to convey fluids from one location to another. The functional capability of a piping system might be lost if, for example, the cross-sectional flow area of the pipe were deformed to such an extent that the required flow through the pipe would be restricted. The objective of this report is to examine the present rules in the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section III, and potential changes to these rules, to determine if they are adequate for ensuring the functional capability of safety-related piping systems in nuclear power plants.

Terao, D.; Rodabaugh, E.C.

1992-11-01T23:59:59.000Z

344

Some Anisotropic Viscoelastic Green Functions  

E-Print Network (OSTI)

In this paper, we compute the closed form expressions of elastody- namic Green functions for three different viscoelastic media with simple type of anisotropy. We follow Burridge et al. [Proc. Royal Soc. of London. 440(1910): (1993)] to express unknown Green function in terms of three scalar functions $\\phi_i$, by using the spectral decomposition of the Christoffel tensor associated with the medium. The problem of computing Green function is, thus reduced to the resolution of three scalar wave equations satisfied by $\\phi_i$, and subsequent equations with $\\phi_i$ as source terms. To describe viscosity effects, we choose an empirical power law model which becomes well known Voigt model for quadratic frequency losses.

Bretin, Elie

2011-01-01T23:59:59.000Z

345

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

346

Functional Analysis and Thermal-Hydraulics Program Plan  

SciTech Connect

The purpose of this document is to set forth the Program Plan for the Functional Analysis and Thermal-Hydraulics (FA TH) Program (herein after referred to as the [open quotes]Program[close quotes]) for the 5 year period covering fiscal years 1992 thru 1996. Specifically, the actions planned by the Safety Analysis Group (SAG) of the Reactor Safety Research Section within SRTC will be identified, defined, and a schedule and resource projection presented. This document will be used by the Reactor Safety Research Section management as the baseline definition for the Program's scope, schedule and cost. Annual budget and staffing requests will be submitted based on this approved baseline. Status reporting and progress monitoring will be performed against this approved baseline. This Program plan will be revised as needed to reflect the changes that come about due to Program redirection. The Program's primary mission is to provide further assurance that the Savannah River Site K-Reactor is designed, modified, operated and maintained in a safe, cost-effective manner through application of functional analysis methodology and continued development of thermal hydraulic support capabilities. It is envisioned that the Program will continue throughout the operating life of K-Reactor and have a permanent staff of eight: one lead and seven engineers. The Program has two primary elements; (1) functional analysis, and (2) thermal-hydraulics. Functional analysis is the first element of the formal Systems Engineering Process. Systems Engineering methodology is commonly applied in both commercial and military programs, particularly where the needs of the program involve complex interrelationships between hardware, software, personnel, and support facilities. It has been extensively used in development of military systems, and in the commercial sector in the development of designs for nuclear power reactors.

Paik, I.K.; Lord, R.; Parks, B.

1992-03-27T23:59:59.000Z

347

Functional Analysis and Thermal-Hydraulics Program Plan  

SciTech Connect

The purpose of this document is to set forth the Program Plan for the Functional Analysis and Thermal-Hydraulics (FA&TH) Program (herein after referred to as the {open_quotes}Program{close_quotes}) for the 5 year period covering fiscal years 1992 thru 1996. Specifically, the actions planned by the Safety Analysis Group (SAG) of the Reactor Safety Research Section within SRTC will be identified, defined, and a schedule and resource projection presented. This document will be used by the Reactor Safety Research Section management as the baseline definition for the Program`s scope, schedule and cost. Annual budget and staffing requests will be submitted based on this approved baseline. Status reporting and progress monitoring will be performed against this approved baseline. This Program plan will be revised as needed to reflect the changes that come about due to Program redirection. The Program`s primary mission is to provide further assurance that the Savannah River Site K-Reactor is designed, modified, operated and maintained in a safe, cost-effective manner through application of functional analysis methodology and continued development of thermal hydraulic support capabilities. It is envisioned that the Program will continue throughout the operating life of K-Reactor and have a permanent staff of eight: one lead and seven engineers. The Program has two primary elements; (1) functional analysis, and (2) thermal-hydraulics. Functional analysis is the first element of the formal Systems Engineering Process. Systems Engineering methodology is commonly applied in both commercial and military programs, particularly where the needs of the program involve complex interrelationships between hardware, software, personnel, and support facilities. It has been extensively used in development of military systems, and in the commercial sector in the development of designs for nuclear power reactors.

Paik, I.K.; Lord, R.; Parks, B.

1992-03-27T23:59:59.000Z

348

Beta function and anomalous dimensions  

Science Conference Proceedings (OSTI)

We demonstrate that it is possible to determine the coefficients of an all-orders beta-function linear in the anomalous dimensions using as data the 2-loop coefficients together with the first one of the anomalous dimensions which are universal. The beta function allows us to determine the anomalous dimension of the fermion masses at the infrared fixed point, and the resulting values compare well with the lattice determinations.

Pica, Claudio; Sannino, Francesco [CP3-Origins, University of Southern Denmark, Campusvej 55, DK-5230 Odense M (Denmark)

2011-06-01T23:59:59.000Z

349

Precision linear ramp function generator  

DOE Patents (OSTI)

A ramp function generator is provided which produces a precise linear ramp function which is repeatable and highly stable. A derivative feedback loop is used to stabilize the output of an integrator in the forward loop and control the ramp rate. The ramp may be started from a selected baseline voltage level and the desired ramp rate is selected by applying an appropriate constant voltage to the input of the integrator.

Jatko, W.B.; McNeilly, D.R.; Thacker, L.H.

1984-08-01T23:59:59.000Z

350

Project X functional requirements specification  

SciTech Connect

Project X is a multi-megawatt proton facility being developed to support intensity frontier research in elementary particle physics, with possible applications to nuclear physics and nuclear energy research, at Fermilab. A Functional Requirements Specification has been developed in order to establish performance criteria for the Project X complex in support of these multiple missions. This paper will describe the Functional Requirements for the Project X facility and the rationale for these requirements.

Holmes, S.D.; Henderson, S.D.; Kephart, R.; Kerby, J.; Mishra, S.; Nagaitsev, S.; Tschirhart, R.; /Fermilab

2011-03-01T23:59:59.000Z

351

Insulin-Like Growth Factor-1 Preserves Salivary Gland Function After Fractionated Radiation  

Science Conference Proceedings (OSTI)

Purpose: Radiotherapy for head-and-neck cancer consists of fractionated radiation treatments that cause significant damage to salivary glands leading to chronic salivary gland dysfunction with only limited prevention and treatment options currently available. This study examines the feasibility of IGF-1 in preserving salivary gland function following a fractionated radiation treatment regimen in a pre-clinical model. Methods and Materials: Mice were exposed to fractionated radiation, and salivary gland function and histological analyses of structure, apoptosis, and proliferation were evaluated. Results: In this study, we report that treatment with fractionated doses of radiation results in a significant level of apoptotic cells in FVB mice after each fraction, which is significantly decreased in transgenic mice expressing a constitutively active mutant of Akt1 (myr-Akt1). Salivary gland function is significantly reduced in FVB mice exposed to fractionated radiation; however, myr-Akt1 transgenic mice maintain salivary function under the same treatment conditions. Injection into FVB mice of recombinant insulin-like growth factor-1 (IGF-1), which activates endogenous Akt, suppressed acute apoptosis and preserved salivary gland function after fractionated doses of radiation 30 to 90 days after treatment. FVB mice exposed to fractionated radiation had significantly lower levels of proliferating cell nuclear antigen-positive salivary acinar cells 90 days after treatment, which correlated with a chronic loss of function. In contrast, FVB mice injected with IGF-1 before each radiation treatment exhibited acinar cell proliferation rates similar to those of untreated controls. Conclusion: These studies suggest that activation of IGF-1-mediated pathways before head-and-neck radiation could modulate radiation-induced salivary gland dysfunction and maintain glandular homeostasis.

Limesand, Kirsten H., E-mail: limesank@u.arizona.ed [Department of Physiological Sciences, University of Arizona, Tucson, AZ (United States); Department of Nutritional Sciences, University of Arizona, Tucson, AZ (United States); Avila, Jennifer L. [Department of Physiological Sciences, University of Arizona, Tucson, AZ (United States); Victory, Kerton; Chang, Hui-Hua; Shin, Yoon Joo; Grundmann, Oliver [Department of Nutritional Sciences, University of Arizona, Tucson, AZ (United States); Klein, Rob R. [Department of Pathology, University of Arizona, Tucson, AZ (United States)

2010-10-01T23:59:59.000Z

352

Functional requirements for component films in a solar thin-film photovoltaic/thermal panel  

SciTech Connect

The functional requirements of the component films of a solar thin-film photovoltaic/thermal panel were considered. Particular emphasis was placed on the new functions, that each layer is required to perform, in addition to their pre-existing functions. The cut-off wavelength of the window layer, required for solar selectivity, can be achieved with charge carrier concentrations typical of photovoltaic devices, and thus does not compromise electrical efficiency. The upper (semiconductor) absorber layer has a sufficiently high thermal conductivity that there is negligible temperature difference across the film, and thus negligible loss in thermal performance. The lower (cermet) absorber layer can be fabricated with a high ceramic content, to maintain high solar selectivity, without significant increase in electrical resistance. A thin layer of molybdenum-based cermet at the top of this layer can provide an Ohmic contact to the upper absorber layer. A layer of aluminium nitride between the metal substrate and the back metal contact can provide electrical isolation to avoid short-circuiting of series-connected cells, while maintaining a thermal path to the metal substrate and heat extraction systems. Potential problems of differential contraction of heated films and substrates were identified, with a recommendation that fabrication processes, which avoid heating, are preferable. (author)

Johnston, David [Power and Energy Research Group, School of Engineering, Northumbria University, Ellison Place, Newcastle upon Tyne NE1 8ST (United Kingdom)

2010-03-15T23:59:59.000Z

353

LOW HORIZONTAL BETA FUNCTION IN LONG STRAIGHTS OF THE NSLS-II LATTICE  

Science Conference Proceedings (OSTI)

The NSLS-II storage ring lattice is comprised of 30 DBA cells arranged in 15 superperiods. There are 15 long straight sections (9.3m) for injection, RF and insertion devices and 15 short straights (6.6m) for insertion devices. In the baseline lattice, the short straights have small horizontal and vertical beta functions but the long straights have large horizontal beta function optimized for injection. In this paper, we explore the possibility of maintaining three long straights with large horizontal beta function while providing the other 12 long straights with smaller horizontal beta function to optimize the brightness of insertion devices. Our study considers the possible linear lattice solutions as well as characterizing the nonlinear dynamics. Results are reported on optimization of dynamic aperture required for good injection efficiency and adequate Touschek lifetime. This paper discusses dynamic aperture optimization for the NSLS-II lattice with alternate high and low horizontal beta function in the long straights, which is proposed for the optimization of the brightness of insertion devices. The linear optics is optimized to meet the requirements of lattice function and source properties. Nonlinear optimization for a lattice with working point at (37.18, 16.2) is performed. Considering the realistic magnets errors and physical apertures, we calculate the frequency maps and plot the tune footprint. The results show that the lattice with high-low beta function has adequate dynamic aperture for good injection efficiency and sufficient Touschek lifetime.

Fanglei, L.; Bengtsson, J.; Guo, W.; Krinsky, S.; Li, Y.; Yang, L.

2011-03-28T23:59:59.000Z

354

Functional autonomy of distant-acting human enhancers  

SciTech Connect

Many human genes are associated with dispersed arrays of transcriptional enhancers that regulate their expression in time and space. Studies in invertebrate model systems have suggested that these elements function as discrete and independent regulatory units, but the in vivo combinatorial properties of vertebrate enhancers remain poorly understood. To explore the modularity and regulatory autonomy of human developmental enhancers, we experimentally concatenated up to four enhancers from different genes and used a transgenic mouse assay to compare the in vivo activity of these compound elements with that of the single modules. In all of the six different combinations of elements tested, the reporter gene activity patterns were additive without signs of interference between the individual modules, indicating that regulatory specificity was maintained despite the presence of closely-positioned heterologous enhancers. Even in cases where two elements drove expression in close anatomical proximity, such as within neighboring subregions of the developing limb bud, the compound patterns did not show signs of cross-inhibition between individual elements or novel expression sites. These data indicate that human developmental enhancers are highly modular and functionally autonomous and suggest that genomic enhancer shuffling may have contributed to the evolution of complex gene expression patterns in vertebrates

Visel, Axel; Akiyama, Jennifer A.; Shoukry, Malak; Afzal, Veena; Rubin, Edward M.; Pennacchio, Len A.

2009-02-19T23:59:59.000Z

355

Aging and functional brain networks  

SciTech Connect

Aging is associated with changes in human brain anatomy and function and cognitive decline. Recent studies suggest the aging decline of major functional connectivity hubs in the 'default-mode' network (DMN). Aging effects on other networks, however, are largely unknown. We hypothesized that aging would be associated with a decline of short- and long-range functional connectivity density (FCD) hubs in the DMN. To test this hypothesis, we evaluated resting-state data sets corresponding to 913 healthy subjects from a public magnetic resonance imaging database using functional connectivity density mapping (FCDM), a voxelwise and data-driven approach, together with parallel computing. Aging was associated with pronounced long-range FCD decreases in DMN and dorsal attention network (DAN) and with increases in somatosensory and subcortical networks. Aging effects in these networks were stronger for long-range than for short-range FCD and were also detected at the level of the main functional hubs. Females had higher short- and long-range FCD in DMN and lower FCD in the somatosensory network than males, but the gender by age interaction effects were not significant for any of the networks or hubs. These findings suggest that long-range connections may be more vulnerable to aging effects than short-range connections and that, in addition to the DMN, the DAN is also sensitive to aging effects, which could underlie the deterioration of attention processes that occurs with aging.

Tomasi D.; Tomasi, D.; Volkow, N.D.

2011-07-11T23:59:59.000Z

356

Computing with almost periodic functions  

E-Print Network (OSTI)

The paper develops a method for discrete computational Fourier analysis of functions defined on quasicrystals and other almost periodic sets. A key point is to build the analysis around the emerging theory of quasicrystals and diffraction in the setting on local hulls and dynamical systems. Numerically computed approximations arising in this way are built out of the Fourier module of the quasicrystal in question, and approximate their target functions uniformly on the entire infinite space. The methods are entirely group theoretical, being based on finite groups and their duals, and they are practical and computable. Examples of functions based on the standard Fibonacci quasicrystal serve to illustrate the method (which is applicable to all quasicrystals modeled on the cut and project formalism).

R. V. Moody; M. Nesterenko; J. Patera

2008-08-13T23:59:59.000Z

357

EVENT PLANNING USING FUNCTION ANALYSIS  

SciTech Connect

Event planning is expensive and resource intensive. Function analysis provides a solid foundation for comprehensive event planning (e.g., workshops, conferences, symposiums, or meetings). It has been used at Idaho National Laboratory (INL) to successfully plan events and capture lessons learned, and played a significant role in the development and implementation of the INL Guide for Hosting an Event. Using a guide and a functional approach to planning utilizes resources more efficiently and reduces errors that could be distracting or detrimental to an event. This integrated approach to logistics and program planning with the primary focus on the participant gives us the edge.

Lori Braase; Jodi Grgich

2011-06-01T23:59:59.000Z

358

Study of Possible Ultraviolet Zero of the Beta Function in Gauge Theories with Many Fermions  

E-Print Network (OSTI)

We study the possibility of an ultraviolet (UV) zero in the $n$-loop beta function of U(1) and non-Abelian gauge theories with $N_f$ fermions for large $N_f$. The effect of scheme transformations on the coefficients of different powers of $N_f$ in the $n$-loop term in the beta function is calculated. A general scheme-independent criterion is given for determining whether or not the $n$-loop beta function has a UV zero for large $N_f$. We compare the results with exact integral representations of the leading terms in the beta functions for the respective Abelian and non-Abelian theories in the limit $N_f \\to \\infty$ limit with $N_f \\alpha$ finite. As part of this study, new analytic and numerical results are presented for certain coefficients, denoted $b_{n,n-1}$, that control the large-$N_f$ behavior at $n$-loop order in the beta function. We also investigate various test functions incorporating a power-law and essential UV zero in the beta function and determine their manifestations in series expansions in powers of coupling and in powers of $1/N_f$.

Robert Shrock

2013-11-20T23:59:59.000Z

359

Framed Morse functions on surfaces  

Science Conference Proceedings (OSTI)

Let M be a smooth, compact, not necessarily orientable surface with (maybe empty) boundary, and let F be the space of Morse functions on M that are constant on each component of the boundary and have no critical points at the boundary. The notion of framing is defined for a Morse function f element of F. In the case of an orientable surface M this is a closed 1-form {alpha} on M with punctures at the critical points of local minimum and maximum of f such that in a neighbourhood of each critical point the pair (f,{alpha}) has a canonical form in a suitable local coordinate chart and the 2-form df and {alpha} does not vanish on M punctured at the critical points and defines there a positive orientation. Each Morse function on M is shown to have a framing, and the space F endowed with the C{sup {infinity}-}topology is homotopy equivalent to the space F of framed Morse functions. The results obtained make it possible to reduce the problem of describing the homotopy type of F to the simpler problem of finding the homotopy type of F. As a solution of the latter, an analogue of the parametric h-principle is stated for the space F. Bibliography: 41 titles.

Kudryavtseva, Elena A; Permyakov, Dmitrii A [M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow (Russian Federation)

2010-06-09T23:59:59.000Z

360

Nonparametric comparison of regression functions  

Science Conference Proceedings (OSTI)

In this work, we provide a new methodology for comparing regression functions m"1 and m"2 from two samples. Since apart from smoothness no other (parametric) assumptions are required, our approach is based on a comparison of nonparametric estimators ... Keywords: 60G10, 62G08, Maximin test, Nonparametric regression, Test of equality

Ramidha Srihera; Winfried Stute

2010-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Nuclear Organization and Genome Function  

E-Print Network (OSTI)

Nuclear Organization and Genome Function Kevin Van Bortle and Victor G. Corces Department-range interactions and have proposed roles in nuclear organization. In this review, we explore recent findings for the roles of insulators in nuclear organization. 163 Annu.Rev.CellDev.Biol.2012.28:163-187.Downloadedfromwww

Corces, Victor G.

362

Human-Machine Function Allocation  

Science Conference Proceedings (OSTI)

Table 1   Human-machine function comparison...ability Comparatively slow and poor computers. Excellent and very rapid computers. Memory storage Poor short-term storage. Excellent long-term storage. Excellent short-term storage. Long-term storage very

363

Efficient Construction of (Distributed) Verifiable Random Functions  

Science Conference Proceedings (OSTI)

We give the first simple and efficient construction of verifiable random functions (VRFs). VRFs, introduced by Micali et al. [13], combine the properties of regular pseudorandom functions (PRFs) (i.e., indistinguishability from a random function) and ...

Yevgeniy Dodis

2003-01-01T23:59:59.000Z

364

Graph coloring and related symmetric functions - CECM  

E-Print Network (OSTI)

metric functions), pa (the power sum symmetric functions), s~ (the Schur functions ), ..... It is true for line graphs (a special class of claw-free graphs) by a result of.

365

Functional genomics of the unicellular cyanobacterium Synechococcus elongatus PCC 7942  

E-Print Network (OSTI)

Unicellular freshwater cyanobacterium Synechococcus elongatus PCC 7942 is the model organism for studying the circadian clock in cyanobacteria. Despite tremendous work over the last decade in identification of clock-related loci and elucidation of molecular mechanisms of the central oscillator, many details of the basic steps in generating circadian rhythms of biological processes remain unsolved and many components are still missing. A transposon-mediated mutagenesis and sequencing strategy has been adopted to disrupt essentially every locus in the genome so as to identify all of the loci that are involved in clock function. The complete genome sequence has been determined by a combination of shotgun sequences and transposon-mediated sequences. The S. elongatus PCC 7942 genome is 2,695,903 bp in length, and has a 55.5% GC content. Automated annotation identified 2,856 protein-coding genes and 51 RNA coding loci. A system for community refinement of the annotation was established. Organization and characteristic features of the genome are discussed in this dissertation. More than 95% of the PCC 7942 genome has been mutagenized and mutants affected in approximately 30% of loci have been screened for defects in circadian function. Approximately 70 new clock loci that belong to different functional categories have been discovered through a team effort. Additionally, functional analysis of insertion mutants revealed that the Type-IV pilus assembly protein PilN and the RNA chaperon Hfq are involved in transformation competence of S. elongatus cells. Functional analysis of an atypical short period kaiA insertional mutant showed that the short period phenotype is caused mainly by the truncation of KaiA by three amino acid residues. The interaction between KaiC and the truncated KaiA is weakened as shown by fluorescence anisotropy analysis. Deletion analysis of pANL, the large endogenous plasmid, implies that two toxin-antitoxin cassettes were responsible for inability to cure cells of this plasmid. In summary, the results indicate that this functional genomics project is very promising toward fulfilling our goal to assemble a comprehensive view of the cyanobacterial circadian clock. The mutagenesis reagents and dataset generated in this project will also benefit the greater scientific community.

Chen, You

2007-08-01T23:59:59.000Z

366

Positivity of Some Integral Transforms, and Generalization of Bochner's Theorem on Functions of Positive Type  

E-Print Network (OSTI)

Using the integral representations of the solutions of Schr\\"odinger equation, which are the essential ingredients of the Gel'fand-Levitan and Marchenko integral equations of inverse scattering theory, we obtain a general theorem on the positivity of some integral transforms, and extend the theorem of Bochner on Fourier transforms of functions of positive type to more general transforms. The present study is restricted to the positive half-axis. We then obtain a theorem on the positivity of Fourier cosine transform of the phase-shifts.

Khosrow Chadan

2007-06-27T23:59:59.000Z

367

High-impact papers presented in the subject category of water resources in the essential science indicators database of the institute for scientific information  

Science Conference Proceedings (OSTI)

The Essential Science Indicators (ESI) database is widely used to evaluate institutions and researchers. The objective of this study was to analyze trends and characteristics of papers in the subject category of water resources in the ESI database of ... Keywords: ESI, Indicators, Number of countries cited, Number of institutes cited, Number of subject areas cited

Kun-Yang Chuang; Ming-Huang Wang; Yuh-Shan Ho

2011-06-01T23:59:59.000Z

368

Electrochemical processes (i.e. inter-conversion between electric energy and chemical energy) are essential for rechargeable battery materials. Many  

E-Print Network (OSTI)

) are essential for rechargeable battery materials. Many conversions between structural phases in the electrodes rechargeable battery cell. Both sensitivity and resolution are expected to be improved significantly with our in situ Li ion motion in a battery cell during the charge/discharge process, thus to understand ionic

Weston, Ken

369

What Facilities and Planning is doing for Sustainability... New campus buildings are designed to LEED green standards for the following essential elements  

E-Print Network (OSTI)

What Facilities and Planning is doing for Sustainability... New campus buildings are designed to LEED green standards for the following essential elements for health and livability: Sustainability been submitted for potential Platinum level LEED award. Facilities Project Managers ensure that up

Bertini, Robert L.

370

Building a Universal Nuclear Energy Density Functional  

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

Building a Universal Nuclear Energy Density Functional Building a Universal Nuclear Energy Density Functional VaryMatrix.png Collaboration with mathematicians and computational...

371

A Note on the Consumption Function  

E-Print Network (OSTI)

Zeldes, S. (1989) Consumption and Liquidity Constraints:A Note on the Consumption Function Douglas G.Steigerwald Consumption Function The international

Steigerwald, Douglas G

2009-01-01T23:59:59.000Z

372

JGI - Undergraduate Research in Functional Genomics  

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

Education Microbial Genome Analysis Microbial Functional Genomics Undergraduate Research in Microbial Functional Genomics Genomics not only can answer questions about known genes,...

373

Degenerating behavior of Green's function  

E-Print Network (OSTI)

Let the unions of real intervals $I = \\cup_{j = 1}^l [a_{2 j -1},a_{2j}],$ $a_1 0.$ We show how to express asymptotically the Green's function $\\phi(z,\\infty,E \\cup I_n)$ of $E \\cup I_n$ at $z = \\infty$ in terms of the Green's function $\\phi(z,\\infty,E)$ and $\\phi(z,c_k,E).$ The formula yields immediately asymptotics for $\\phi^n(z,\\infty,E \\cup I_n)$ with respect to $n$ which are important in many problems of approximation theory. Another consequence is an asymptotic representation of $cap(E \\cup I_n)$ in terms of $cap(E)$ and $\\phi(z,c_k,E)$ and of the harmonic measure $\\omega(\\infty, E_j,E \\cup I_n).$

Peherstorfer, Franz

2010-01-01T23:59:59.000Z

374

Troubleshooting time-dependent density-functional theory for photochemical applications: Oxirane  

Science Conference Proceedings (OSTI)

The development of analytic-gradient methodology for excited states within conventional time-dependent density-functional theory (TDDFT) would seem to offer a relatively inexpensive alternative to better established quantum-chemical approaches for the modeling of photochemical reactions. However, even though TDDFT is formally exact, practical calculations involve the use of approximate functional, in particular the TDDFT adiabatic approximation, the use of which in photochemical applications must be further validated. Here, we investigate the prototypical case of the symmetric CC ring opening of oxirane. We demonstrate by direct comparison with the results of high-quality quantum Monte Carlo calculations that, far from being an approximation on TDDFT, the Tamm-Dancoff approximation is a practical necessity for avoiding triplet instabilities and singlet near instabilities, thus helping maintain energetically reasonable excited-state potential energy surfaces during bond breaking. Other difficulties one would encounter in modeling oxirane photodynamics are pointed out.

Cordova, Felipe; Doriol, L. Joubert; Ipatov, Andrei; Casida, Mark E.; Filippi, Claudia; Vela, Alberto [Laboratoire de Chimie Theorique, Departement de Chimie Molecularie (DCM, UMR CNRS/UJF 5250), Institut de Chimie Moleculaire de Grenoble (ICMG, FR2607), Universite Joseph Fourier - Grenoble I, 301 rue de la Chimie, BP 53, F-38041 Grenoble Cedex 9 (France); Instituut-Lorentz for Theoretical Physics, Universiteit Leiden, Niels Bohrweg 2, Leiden NL-2333 CA Netherlands (Netherlands); Departamento de Quimica, Cinvestav, Avenida Instituto Politecnico Nacional 2508, A.P. 14-740, Mexico D.F. 07000 (Mexico)

2007-10-28T23:59:59.000Z

375

A Note on the Griewank Test Function  

Science Conference Proceedings (OSTI)

In this paper we analyze a widely employed test function for global optimization, the Griewank function. While this function has an exponentially increasing number of local minima as its dimension increases, it turns out that a simple Multistart algorithm ... Keywords: Griewank function, Multistart

M. Locatelli

2003-02-01T23:59:59.000Z

376

Testing model assumptions in functional regression models  

Science Conference Proceedings (OSTI)

In the functional regression model where the responses are curves, new tests for the functional form of the regression and the variance function are proposed, which are based on a stochastic process estimating L^2-distances. Our approach avoids the explicit ... Keywords: 62G10, Functional data, Goodness-of-fit tests, Parametric bootstrap, Tests for heteroscedasticity

Axel Bcher; Holger Dette; Gabriele Wieczorek

2011-11-01T23:59:59.000Z

377

FUNCTION GENERATOR FOR ANALOGUE COMPUTERS  

DOE Patents (OSTI)

An improved analogue computer is designed which can be used to determine the final ground position of radioactive fallout particles in an atomic cloud. The computer determines the fallout pattern on the basis of known wind velocity and direction at various altitudes, and intensity of radioactivity in the mushroom cloud as a function of particle size and initial height in the cloud. The output is then displayed on a cathode-ray tube so that the average or total luminance of the tube screen at any point represents the intensity of radioactive fallout at the geographical location represented by that point. (AEC)

Skramstad, H.K.; Wright, J.H.; Taback, L.

1961-12-12T23:59:59.000Z

378

The structure, function, and biosynthesis of plant cell wall pectic polysaccharides  

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

structure, structure, function, and biosynthesis of plant cell wall pectic polysaccharides Kerry Hosmer Caffall a , Debra Mohnen a,b, * a University of Georgia, Department of Biochemistry and Molecular Biology and Complex Carbohydrate Research Center, 315 Riverbend Road Athens, GA 30602, United States b DOE BioEnergy Science Center (BESC), 315 Riverbend Road Athens, GA 30602, United States a r t i c l e i n f o Article history: Received 18 November 2008 Received in revised form 4 May 2009 Accepted 6 May 2009 Available online 2 June 2009 Keywords: Cell wall polysaccharides Galacturonan Glycosyltransferases Homogalacturonan Pectin function Rhamnogalacturonan a b s t r a c t Plant cell walls consist of carbohydrate, protein, and aromatic compounds and are essential to the proper growth and development of plants. The carbohydrate components make up $90% of the primary wall, and are critical to wall

379

Casimir force in brane worlds: Coinciding results from Green's and zeta function approaches  

Science Conference Proceedings (OSTI)

Casimir force encodes the structure of the field modes as vacuum fluctuations and so it is sensitive to the extra dimensions of brane worlds. Now, in flat spacetimes of arbitrary dimension the two standard approaches to the Casimir force, Green's function, and zeta function yield the same result, but for brane world models this was only assumed. In this work we show that both approaches yield the same Casimir force in the case of universal extra dimensions and Randall-Sundrum scenarios with one and two branes added by p compact dimensions. Essentially, the details of the mode eigenfunctions that enter the Casimir force in the Green's function approach get removed due to their orthogonality relations with a measure involving the right hypervolume of the plates, and this leaves just the contribution coming from the zeta function approach. The present analysis corrects previous results showing a difference between the two approaches for the single brane Randall-Sundrum; this was due to an erroneous hypervolume of the plates introduced by the authors when using the Green's function. For all the models we discuss here, the resulting Casimir force can be neatly expressed in terms of two four-dimensional Casimir force contributions: one for the massless mode and the other for a tower of massive modes associated with the extra dimensions.

Linares, Roman; Morales-Tecotl, Hugo A. [Departamento de Fisica, Universidad Autonoma Metropolitana Iztapalapa, San Rafael Atlixco 186, Codigo Postal 09340, Mexico Distrito Federal (Mexico); Pedraza, Omar [Centro de Estudios en Fisica y Matematicas Basicas y Aplicadas, Universidad Autonoma de Chiapas, 4a. Oriente Norte 1428, Tuxtla Gutierrez, Chiapas (Mexico)

2010-06-15T23:59:59.000Z

380

Functions and fixed types: Biological and other functions in the post-adaptationist era  

Science Conference Proceedings (OSTI)

Among naturalistic theories of biological functions, only those that do not reduce functions to actual causal roles allow for a distinction of function and dysfunction. Most prominent among those theories are etiological theories of function, which refer ... Keywords: Adaptationism, Millikan, dysfunction, function, naturalization of norms, type fixation

Ulrich Krohs

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "maintaining essential functions" 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

Property:Distributed Generation Function | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Function Jump to: navigation, search Property Name Distributed Generation Function Property Type Page Description A description of the function(s) for which...

382

"Department of Energy Information Protection Task Force - SSN Reduction Project PA 09-Baseline Inventory",,,,,,,,,,,,,"1. Not Cost Effective","2. No Resources Available","3. Legally Required to Collect and/or Maintain","4. Other - Explain in Column ""R"""  

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

Department of Energy Information Protection Task Force - SSN Reduction Project PA 09-Baseline Inventory",,,,,,,,,,,,,"1. Not Cost Effective","2. No Resources Available","3. Legally Required to Collect and/or Maintain","4. Other - Explain in Column ""R""" Department of Energy Information Protection Task Force - SSN Reduction Project PA 09-Baseline Inventory",,,,,,,,,,,,,"1. Not Cost Effective","2. No Resources Available","3. Legally Required to Collect and/or Maintain","4. Other - Explain in Column ""R""" "DOE Privacy Website: http://management.energy.gov/FOIA/privacy.htm",,,,,,,,,,,,,"Yes","No","N/A" ,"1. Departmental Element","2. System Name/ Major Application Name","3. Location","4. Name of System Owner/ Information or Data Owner","5. Contact Information","6. Does the system collect or maintain Social Security numbers?","7. Source of Legal Requirement/Authority to Collect or Maintain Social Security Numbers?","8. Does the system have a Privacy Impact Assessment (PIA)?","9. Does the system have a System of Records Notice (SORN)? If yes, provide the name of the System of Records Notice.","10. Does the system collect or maintain other forms of PII?","Comments"

383

Examples of Extended Empirical Orthogonal Function Analyses  

Science Conference Proceedings (OSTI)

An extended empirical orthogonal function analysis technique is described which expands a data set in terms of functions which are the best representation of that data set for a sequence of time points. The method takes advantage of the fact ...

Bryan C. Weare; John S. Nasstrom

1982-06-01T23:59:59.000Z

384

Computabilities of Fine-Continuous Functions  

Science Conference Proceedings (OSTI)

We propose a sequential-based definition of locally uniformly Fine-computable functions together with a definition of effective locally uniform convergence. This definition of computability makes some discontinuous functions, which may diverge, computable. ...

Takakazu Mori

2000-09-01T23:59:59.000Z

385

Function points as a universal software metric  

Science Conference Proceedings (OSTI)

Function point metrics are the most accurate and effective metrics yet developed for software sizing and also for studying software productivity, quality, costs, risks, and economic value. Unlike the older "lines of code" metric function points can be ...

Capers Jones

2013-07-01T23:59:59.000Z

386

Functions and Requirements for the Transition Project  

SciTech Connect

This document describes the functional requirement baseline for the Transition of 100 K Area Facilities Project (Transition Project). This baseline information consists of top-level functions, requirements, concept description, interface description, issues, and enabling assumptions.

YANOCHKO, R.M.

2000-04-24T23:59:59.000Z

387

Contacts for Administrative Functions | Department of Energy  

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

Functions CIO Leadership Organization Contact Us Acquisition Administration Cyber Security E-Gov Enterprise Architecture Geospatial Science Program Information...

388

Chemically-Functionalized Microcantilevers for Detection of ...  

Chemically-Functionalized Microcantilevers for Detection of Chemical, Biological, and Explosive Material Note: The technology described above is an ...

389

Worldline Green Functions for Arbitrary Feynman Diagrams  

E-Print Network (OSTI)

We propose a general method to obtain the scalar worldline Green function on an arbitrary 1D topological space, with which the first-quantized method of evaluating 1-loop Feynman diagrams can be generalized to calculate arbitrary ones. The electric analog of the worldline Green function problem is found and a compact expression for the worldline Green function is given, which has similar structure to the 2D bosonic Green function of the closed bosonic string.

Peng Dai; Warren Siegel

2006-08-09T23:59:59.000Z

390

Transfer function identification in power system applications  

Science Conference Proceedings (OSTI)

This paper presents an introduction to concepts and applications of transfer function identification in power systems. The paper begins with a brief introduction to transfer function identification methods using least-squares approaches and then discusses applications which include SVC's, model validation applications, and software validation. A comparison is also made between eigenvalues obtained from transfer function identification and small signal analysis. Methods for testing the validity of identified transfer functions are also discussed.

Smith, J.R.; Fatehi, F.; Woods, C.S. (Montana State Univ., Bozeman, MT (United States)); Hauer, J.F. (Bonneville Power Administration, Portland, OR (United States)); Trudnowski, D.J. (Battelle Pacific Northwest Labs., Richland, WA (United States))

1993-08-01T23:59:59.000Z

391

Exploring Nature's Strategies for Creating Functional Materials  

Science Conference Proceedings (OSTI)

Hierarchically Ordered Nanostructures from Functionalized Nano Building Blocks Ice-templated Biomaterials Ice-templated Scaffolds for Bone Regeneration.

392

Dictionary of PVT Subroutines and Functions  

Science Conference Proceedings (OSTI)

Dictionary of PVT Subroutines and Functions. All PVT documentation can be found under PHIGS Validation Tests - Overview. ...

393

Patterning Nano-Domains with Orthogonal Functionalities ...  

Science Conference Proceedings (OSTI)

Page 1. Patterning Nano-Domains with Orthogonal Functionalities: Solventless Synthesis of Self-Sorting Surfaces Karen ...

2013-10-27T23:59:59.000Z

394

NIST: Methane Symmetry Operations - Nuclear spin functions  

Science Conference Proceedings (OSTI)

Methane Symmetry Operations. 9. Symmetry Properties of Laboratory-Fixed Nuclear Spin Functions, Nuclear Spin Statistics, and Parities. ...

395

BNL | Center for Functional Nanomaterials (CFN) | Jobs  

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

Nanomaterials Postdoctoral Research Associate - Isolation of Device Quality Graphene (6482) - The Center for Functional Nanomaterials (CFN) at Brookhaven National...

396

Parton Distribution Functions: Impact of HERA  

E-Print Network (OSTI)

Recent progresses of the proton structure measurements and determination of parton distribution functions by $ep$ collisions at HERA are introduced.

Kunihiro Nagano; for the H1; ZEUS Collaborations

2008-08-27T23:59:59.000Z

397

Polarized structure functions in nuclear matter  

Science Conference Proceedings (OSTI)

We present a comprehensive analysis of the structure functions for the polarized nuclei {sup 3}He, and focus on the polarized distribution functions and light-cone momentum distributions of protons and neutrons. We demonstrate that the first moment of the {sup 3}He structure function can provide an incisive test of the Bjorken sum rule.

Tehrani, S. Atashbar [School of Particles and Accelerators, IPM (Institute for Studies in Theoretical Physics and Mathematics), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Khorramian, A. N.; Monfared, S. Taheri [School of Particles and Accelerators, IPM (Institute for Studies in Theoretical Physics and Mathematics), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Physics Department, Semnan University, Semnan (Iran, Islamic Republic of); Arbabifar, F. [Physics Department, Semnan University, Semnan (Iran, Islamic Republic of)

2011-10-24T23:59:59.000Z

398

Towards a standard taxonomy of artifact functions  

Science Conference Proceedings (OSTI)

The aim of this paper is to provide a logically accurate and technologically sound taxonomy of artifact functions. To this end, I review one of the recent proposals of such taxonomy: the Reconciled Functional Basis. Since it turns out that this taxonomy ... Keywords: Taxonomy, artifact, function, ontology, state of affairs

Pawe? Garbacz

2006-08-01T23:59:59.000Z

399

Generalized multiscale radial basis function networks  

Science Conference Proceedings (OSTI)

A novel modelling framework is proposed for constructing parsimonious and flexible multiscale radial basis function networks (RBF). Unlike a conventional standard single scale RBF network, where all the basis functions have a common kernel width, the ... Keywords: Model term selection, Neural networks, Nonlinear system identification, Orthogonal least squares, Radial basis functions

Stephen A. Billings; Hua-Liang Wei; Michael A. Balikhin

2007-12-01T23:59:59.000Z

400

Mission and Functions | Department of Energy  

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

Mission and Functions Mission and Functions Mission and Functions Office of Technology Mission and Functions Mission The Office of Technology manages the Technology Deployment and Technology Development programs to improve the security posture of the Department of Energy and the protection of its assets and facilities through the deployment of new safeguards and security technologies and development of advanced technologies that reduce operating costs, save protective force lives, and improve security effectiveness. Functions Conducts security system testing and analyses of safeguards and security technology and related equipment and techniques associated with programmatic mission requirements for deployment at field and Headquarters sites. Assembles, leads, and manages teams of subject-matter experts to review,

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401

TOF Profile function used at POWGEN  

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

TOF Profile function used at POWGEN: TOF Profile function used at POWGEN: Powgen uses a TOF profile function which is a variation on the standard profile function originally derived by VonDreele, Jorgensen and Windsor (VonDreele RB, Jorgensen JD and Windsor CG, "Rietveld Refinement with Spallation Neutron Powder Diffraction Data", J. Appl. Cryst. 15, 581 (1982). This function is implemented in GSAS (profile function 3, 4 & 5) and Fullprof NPROF 9 and is most applicable to diffractometers viewing ambient polyethylene or water moderators. The POWGEN diffractometer, however, views a poisoned cryogenic H 2 (liquid) moderator. The variation in peak shape and peak position with TOF (or d-spacing d) is calculated using a more complex function related to thermal and epithermal components of the neutron spectrum that was

402

Microscopically-based energy density functionals for nuclei using the density matrix expansion: Implementation and pre-optimization  

E-Print Network (OSTI)

In a recent series of papers, Gebremariam, Bogner, and Duguet derived a microscopically based nuclear energy density functional by applying the Density Matrix Expansion (DME) to the Hartree-Fock energy obtained from chiral effective field theory (EFT) two- and three-nucleon interactions. Due to the structure of the chiral interactions, each coupling in the DME functional is given as the sum of a coupling constant arising from zero-range contact interactions and a coupling function of the density arising from the finite-range pion exchanges. Since the contact contributions have essentially the same structure as those entering empirical Skyrme functionals, a microscopically guided Skyrme phenomenology has been suggested in which the contact terms in the DME functional are released for optimization to finite-density observables to capture short-range correlation energy contributions from beyond Hartree-Fock. The present paper is the first attempt to assess the ability of the newly suggested DME functional, which has a much richer set of density dependencies than traditional Skyrme functionals, to generate sensible and stable results for nuclear applications. The results of the first proof-of-principle calculations are given, and numerous practical issues related to the implementation of the new functional in existing Skyrme codes are discussed. Using a restricted singular value decomposition (SVD) optimization procedure, it is found that the new DME functional gives numerically stable results and exhibits a small but systematic reduction of our test $\\chi^2$ function compared to standard Skyrme functionals, thus justifying its suitability for future global optimizations and large-scale calculations.

M. Stoitsov; M. Kortelainen; S. K. Bogner; T. Duguet; R. J. Furnstahl; B. Gebremariam; N. Schunck

2010-09-17T23:59:59.000Z

403

Algebraic Pseudorandom Functions with Improved Efficiency from the Augmented Cascade  

E-Print Network (OSTI)

Function (VRF) and a large-domain simulatable VRF. 1 Introduction Pseudorandom functions (PRFs), first

Boneh, Dan

404

Supramolecular structures modeling photosynthetic reaction center function  

Science Conference Proceedings (OSTI)

Work in our laboratory has focused on the influence of solvent motion on the rates and energetics of photochemical charge separation in glassy solids. The efficiencies of many nonadiabatic electron transfer reactions involving photochemical electron donors with relatively low excited state energies, such as porphyrins and chlorophylls, are poor in the solid state. Recent work has shown that placing a porphyrin-acceptor system in a glassy solid at low temperature significantly raises the energy of ks ion-pair state. This destabilization can be as much as 0.8 eV relative to the ion pair state energy in a polar liquid. This contrasts sharply with photosynthetic reaction centers, which maintain medium-independent electron transfer rates with relatively small free energies of charge separation. Using this information we have set out to design photochemical systems that produce long-lived radical ion pairs in glassy solids with high quantum efficiency. These systems maintain their efficiency when placed in other glassy matrices, such as polymers. An important consequence of this effort is the design of molecules that minimize the electronic interaction between the oxidized donor and reduced acceptor. This minimization can be attained by careful design of the spacer groups linking the donor and acceptor and by using more than a single electron transfer step to increase the distance between the separated charges as is done in natural photosynthesis.

Wasielewski, M.R.; Gaines, G.L. III; Gosztola, D.; Niemczyk, M.P.; Svec, W.A.

1992-08-20T23:59:59.000Z

405

Variational Formulas for the Green Function  

E-Print Network (OSTI)

The Green function has a complex dependence upon its underlying domain and differential operator. We briefly review Hadamard's formula for the first variation of the Green function due to a perturbation of the domain. We then take a different avenue and approximate the change in the Green function when the Laplacian is perturbed into a number of different operators: Helmholtz, Schr\\"odinger and Laplace--Beltrami.

Charles Z. Martin

2011-09-25T23:59:59.000Z

406

Some challenges for Nuclear Density Functional Theory  

E-Print Network (OSTI)

We discuss some of the challenges that the DFT community faces in its quest for the truly universal energy density functional applicable over the entire nuclear chart.

T. Duguet; K. Bennaceur; T. Lesinski; J. Meyer

2006-06-20T23:59:59.000Z

407

Office of Security Operations: Mission and Functions  

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

Mission and Functions Mission and Functions Mission The Office of Headquarters Security Operations strengthens national security by protecting personnel, facilities, property, classified information, and sensitive unclassified information for DOE Headquarters facilities in the National Capital Area under normal and abnormal (i.e., emergency) conditions; managing access authorization functions; ensuring that executives and dignitaries are fully protected, and supporting efforts to ensure the continuity of government in all circumstances as mandated by Presidential Decision Directive. The Office is the database owner for the principal personnel security information processing activities of the Department and personnel security administrative review process. Functions

408

Elliptic Functions - CECM - Simon Fraser University  

E-Print Network (OSTI)

Jul 27, 2004 ... Klein on the younger generation ... generation scarcely even knows what an elliptic function is. ...... symmetric power method still works for this.

409

BSA 07-30: Functionalized Carbon Nanotubes  

BSA 07-30: Functionalized Carbon Nanotubes. BNL Reference Number: BSA 07-30. Patent Status: Application Number 20090308753 was published on December ...

410

Nuclear Parton Densities and Structure Functions  

E-Print Network (OSTI)

We calculate nuclear parton distribution functions (PDFs), using the constituent quark model. We find the bounded valon distributions in a nuclear to be related to free valon distributions in a nucleon. By using improved bounded valon distributions for a nuclear with atomic number $A$ and the partonic structure functions inside the valon, we can calculate the nuclear structure function in $x$ space. The results for nuclear structure-function ratio $F_2^A/F_2^D$ at some values of $A$ are in good agreement with the experimental data.

S. Atashbar Tehrani; Ali N. Khorramian; A. Mirjalili

2004-10-27T23:59:59.000Z

411

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

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

412

Methods for streamlining expensive function calls.  

E-Print Network (OSTI)

??The focus of this thesis has been developing and validating new methods of streamlining expensive function calls. These new methods of streamlining are applied to (more)

Taylor, Benjamin Jeppson

2011-01-01T23:59:59.000Z

413

A mass-dependent beta-function  

E-Print Network (OSTI)

Threshold effects related to fermion masses are considered for an all-order beta-function based on a background field momentum subtraction scheme. Far away from all thresholds, the suggested beta-function reduces to the conjectured all-order form inspired by the Novikov-Shifman-Vainshtein-Zakharov beta-function of N=1 supersymmetric gauge theories with a fixed integer number of fermion flavours. At (formally) infinite masses the corresponding pure Yang--Mills beta-function is recovered. We discuss applications to the phase diagram of non-Abelian field theories.

Dietrich, Dennis D

2009-01-01T23:59:59.000Z

414

ORBIT: OPTIMIZATION BY RADIAL BASIS FUNCTION ...  

E-Print Network (OSTI)

The performance profile ?s(?) is a probability distribution function capturing ..... assess the impact of changes in management practices on phosphorous loads.

415

Analyzing Metagenomic Data: Inferring Microbial Community Function...  

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

Metagenomic Data: Inferring Microbial Community Function with MG-RAST Publication Type Book Chapter Year of Publication 2010 Authors Antonopoulos, DA, Glass, EM, Meyer, F Book...

416

Functional Surfaces and Interfaces and New Materials  

Science Conference Proceedings (OSTI)

Functional Composites: Fluorescent Carbon Nanotubes in Silica Aerogel ... Novel Metallo-Organic Derived Ti-Si-Cr-C-N Nanocomposite Coatings: Part II...

417

Chromatin Dynamics in Cellular Function - Springer  

Science Conference Proceedings (OSTI)

Structure and Function of Protein Modules in Chromatin Biology Kyoko L. Yap,; Ming-Ming Zhou show all 2 hide. Download PDF (597KB). Book Chapter.

418

Observational Window Functions in Planet Transit Searches  

E-Print Network (OSTI)

Window functions describe, as a function of orbital period, the probability that an existing planetary transit is detectable in one's data for a given observing strategy. We show the dependence of this probability upon several strategy and astrophysical parameters, such as length of observing run, observing cadence, length of night, and transit duration. The ability to detect a transit is directly related to the intrinsic noise of the observations. In our simulations of the window function, we explicitly address non-correlated (gaussian or white) noise and correlated (red) noise and discuss how these two different noise components affect window functions in different manners.

Kaspar von Braun; David R. Ciardi

2007-11-27T23:59:59.000Z

419

Interfaces in Nanostructured Functional Oxide Thin Films  

Science Conference Proceedings (OSTI)

The thin film systems include high temperature superconductors (HTS), thin film solid oxide fuel cells (SOFC), and other functional oxide systems. Detailed...

420

Gas characterization system functional design criteria  

DOE Green Energy (OSTI)

This is the functional design criteria for the gas characterization systems being placed on selected flammable gas watch-list tanks in support of the hydrogen mitigation tests.

Straalsund, E.K.

1995-01-05T23:59:59.000Z

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


421

Grey-box radial basis function modelling  

Science Conference Proceedings (OSTI)

A fundamental principle in data modelling is to incorporate available a priori information regarding the underlying data generating mechanism into the modelling process. We adopt this principle and consider grey-box radial basis function (RBF) modelling ... Keywords: Black-box model, Boundary value constraint, Data modelling, Grey-box model, Orthogonal least squares algorithm, Radial basis function network, Symmetry

Sheng Chen; Xia Hong; Chris J. Harris

2011-05-01T23:59:59.000Z

422

Function Annotation for Pseudoknot Using Structure Similarity  

Science Conference Proceedings (OSTI)

Many raw biological sequence data have been generated by the human genome project and related efforts. The understanding of structural information encoded by biological sequences is important to acquire knowledge of their biochemical functions but remains ... Keywords: Pseudoknot, function, stem, loop, similarity, distance, structure.

Qingfeng Chen; Yi-Ping Phoebe Chen

2011-11-01T23:59:59.000Z

423

PERSPECTIVE Directed Evolution of Novel Protein Functions  

E-Print Network (OSTI)

PERSPECTIVE Directed Evolution of Novel Protein Functions Huimin Zhao1,2 1 Department of Chemical.interscience.wiley.com). DOI 10.1002/bit.21455 ABSTRACT: Directed evolution has been successfully used to engineer proteins for basic and applied biological research. However, engineering of novel protein functions by directed

Zhao, Huimin

424

Exposing and understanding scrolling transfer functions  

Science Conference Proceedings (OSTI)

Scrolling is controlled through many forms of input devices, such as mouse wheels, trackpad gestures, arrow keys, and joysticks. Performance with these devices can be adjusted by introducing variable transfer functions to alter the range of expressible ... Keywords: control-display gain, scroll acceleration, scrolling, transfer functions

Philip Quinn; Andy Cockburn; Gry Casiez; Nicolas Roussel; Carl Gutwin

2012-10-01T23:59:59.000Z

425

Exploring the HR Function at Maersk Oil  

E-Print Network (OSTI)

Exploring the HR Function at Maersk Oil An Interview with: Stina Bjerg Nielsen Senior Vice President, Human Resources Maersk Oil Interviewed by: Alison Hill Queen's University IRC A QUEEN'S UNIVERSITY IRC INTERVIEW #12;Exploring the HR Function at Maersk Oil An Interview with: Stina Bjerg Nielsen

Graham, Nick

426

Global illumination with radiance regression functions  

Science Conference Proceedings (OSTI)

We present radiance regression functions for fast rendering of global illumination in scenes with dynamic local light sources. A radiance regression function (RRF) represents a non-linear mapping from local and contextual attributes of surface points, ... Keywords: global illumination, neural network, non-linear regression, real time rendering

Peiran Ren; Jiaping Wang; Minmin Gong; Stephen Lin; Xin Tong; Baining Guo

2013-07-01T23:59:59.000Z

427

Robust key extraction from physical uncloneable functions  

Science Conference Proceedings (OSTI)

Physical Uncloneable Functions (PUFs) can be used as a cost-effective means to store key material in an uncloneable way. Due to the fact that the key material is obtained by performing measurements on a physical system, noise is inevitably present in ... Keywords: authentication, challenge-response pair, error correction, noise, physical uncloneable function, speckle pattern

B. kori?; P. Tuyls; W. Ophey

2005-06-01T23:59:59.000Z

428

The recursive Green's function method for graphene  

Science Conference Proceedings (OSTI)

We describe how to apply the recursive Green's function method to the computation of electronic transport properties of graphene sheets and nanoribbons in the linear response regime. This method allows for an amenable inclusion of several disorder mechanisms ... Keywords: Electronic transport, Graphene nanoribbons, Recursive Green's function method

Caio H. Lewenkopf, Eduardo R. Mucciolo

2013-06-01T23:59:59.000Z

429

Metropolitan functional specialization, transportation, and gasoline consumption  

SciTech Connect

This study examines metropolitan functional specialization relative to urban commuting patterns and per capita gasoline consumption in 55 Standard Metropolitan Statistical Areas throughout the United States. Under the concept of sustenance organization in human ecology, social scientists have documented support for the importance of the key urban economic function for composition and distribution of population and firms in cities. However, sociological and ecological knowledge of the relationships of functional specialization, commuting, and transportation energy use is extremely limited. The present research utilizes the concept of function specialization and the framework of the ecological complex in developing relationships and models of personal daily urban travel patterns and gasoline use. The effort is made to examine human ecological factors in a physical approach to energy consumption. Relationships are tested using correlation matrices, regression analyses, and scatterplots where necessary. The findings indicate that the functional specialization of communities is significant in accounting for variance and patterns in their commuting travel and per capita gasoline consumption.

Hoffman, W.D.

1985-01-01T23:59:59.000Z

430

Elastodynamic Green's functions for a laminated piezoelectric cylinder  

E-Print Network (OSTI)

acceptable precision of the Greens functions depicting theexorbitantly large. Thus, Greens functions in these formsdimensional elastodynamic Greens functions, ASCE Journal

Bai, H; Taciroglu, E; Dong, S B; Shah, A H

2004-01-01T23:59:59.000Z

431

Green's function analysis of periodic structures in computational electromagnetics  

E-Print Network (OSTI)

the two-dimensional periodic Green's function," IEEE Trans.evaluation of the Green's function for the Helmholtzrepresentations of certain Green's functions," J. Comp.

Van Orden, Derek

2011-01-01T23:59:59.000Z

432

Emergency Support Function #12; Energy Annex - Support Agencies...  

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

Emergency Support Function 12; Energy Annex - Support Agencies Emergency Support Function 12; Energy Annex - Support Agencies Emergency Support Function 12 - Energy Annex -...

433

NLTE model calculations for the solar atmosphere with an iterative treatment of opacity distribution functions  

E-Print Network (OSTI)

Modeling the variability of the solar spectral irradiance is a key factor for understanding the solar influence on the climate of the Earth. As a first step to calculating the solar spectral irradiance variations we reproduce the solar spectrum for the quiet Sun over a broad wavelength range with an emphasis on the UV. We introduce the radiative transfer code COSI which calculates solar synthetic spectra under conditions of non-local thermodynamic equilibrium (NLTE). A self-consistent simultaneous solution of the radiative transfer and the statistical equation for the level populations guarantees that the correct physics is considered for wavelength regions where the assumption of local thermodynamic equilibrium (LTE) breaks down. The new concept of iterated opacity distribution functions (NLTE-ODFs), through which all line opacities are included in the NLTE radiative transfer calculation, is presented. We show that it is essential to include the line opacities in the radiative transfer to reproduce the solar...

Haberreiter, M; Hubeny, I

2008-01-01T23:59:59.000Z

434

Subsystem functionals and the missing ingredient of confinement physics in density functionals  

E-Print Network (OSTI)

The subsystem functional scheme is a promising approach recently proposed for constructing exchange-correlation density functionals. In this scheme, the physics in each part of real materials is described by mapping to a ...

Hao, Feng

435

Work function control of hole-selective polymer/ITO anode contacts: an electrochemical doping study  

Science Conference Proceedings (OSTI)

We present a novel method for electrodeposition of ultra-thin films of poly-3-hexylthiophene (e-P3HT) on chemically modified indium-tin oxide (ITO) electrodes, to produce a hole-selective contact with an easily tuned work function (?), as demonstrated by a combination of spectroelectrochemistry and ultraviolet photoemission spectroscopy (UPS). Selective contacts for optimized charge injection have become essential components for both thin film organic light emitting diodes (OLEDs) and organic photovoltaics (OPVs). Electrochemically doped e-P3HT thin films, using counter ions such as PF{sub 6}{sup ?} do not suffer from stability issues associated with more acidic polymer layers (e.g. PEDOT:PSS). By controlling the oxidation state of the e-P3HT film via electrochemical doping we control the charge density within the film, resulting in an increase in work function with an increase in degree of oxidation. The method of electrochemical formation and doping of the e-P3HT film, using either constant potential step (CA) versus pulsed-potential step (PPS) protocols, has a significant secondary impact on the work function, as a result of the interface dipole effects from entrapment of these counter ions in the near-surface region of the polymer film. These results have significance for the performance of both OLEDs and OPVs built on these doped e-P3HT layers.

Ratcliff, Erin L.; Lee, Paul A.; Armstrong, Neal R.

2010-01-01T23:59:59.000Z

436

Essential Grid Workflow Monitoring Elements  

SciTech Connect

Troubleshooting Grid workflows is difficult. A typicalworkflow involves a large number of components networks, middleware,hosts, etc. that can fail. Even when monitoring data from all thesecomponents is accessible, it is hard to tell whether failures andanomalies in these components are related toa given workflow. For theGrid to be truly usable, much of this uncertainty must be elim- inated.We propose two new Grid monitoring elements, Grid workflow identifiersand consistent component lifecycle events, that will make Gridtroubleshooting easier, and thus make Grids more usable, by simplifyingthe correlation of Grid monitoring data with a particular Gridworkflow.

Gunter, Daniel K.; Jackson, Keith R.; Konerding, David E.; Lee,Jason R.; Tierney, Brian L.

2005-07-01T23:59:59.000Z

437

Essential WAP for Web Professionals  

Science Conference Proceedings (OSTI)

From the Book:PREFACE: ForewordImagine that one of the foremost computer-science theoreticians, Don Knuth, and one of the most practical solution architects, Jim McConnell, co-authored a book on wireless technology, and you now have ...

Damon Hougland; Micah Brown; Khurram Zafar

2001-06-01T23:59:59.000Z

438

Essential properties: analysis and extension  

E-Print Network (OSTI)

material they went into this thesis. For that, but more for their friendship, I am exceptionally grateful. Thanks also to T-Rex, who protected my desk the whole way. Special thanks go to Tim Button, Adam Stewart-Wallace, and Robert Trueman. Without... being green, and {Socrates} are all entities. Meanwhile, object denotes the concrete entities; Cicero is an object, while 7, being green, and {Socrates} are not. To refer to non-concrete entities, e.g. 7 and {Socrates}, I use the standard abstract...

Wildman, Nathan

2011-01-11T23:59:59.000Z

439

The Essentials for Military Applications  

E-Print Network (OSTI)

The Newport Papers are extended research projects that the editor, the Dean of Naval Warfare Studies, and the President of the Naval War College consider of particular interest to policy makers, scholars, and analysts. Papers are drawn generally from manuscripts not scheduled for publication either as articles in the Naval War College Review or as books from the Naval War College Press but that nonetheless merit extensive distribution. Candidates are considered by an editorial board under the auspices of the Dean of Naval Warfare Studies. The views expressed in The Newport Papers are those of the authors and not necessarily those of the Naval War College or the Department of the Navy. Correspondence concerning The Newport Papers should be addressed to the Dean of Naval Warfare Studies. Requests for additional copies or for permanent distribution should be directed to the President, Code 32A, Naval War College,

Number Ten; Professor Robert; S. Wood; Glenn E. James; Patricia Ann; Christine Marie; Phillip Andrew

1996-01-01T23:59:59.000Z

440

Web Engineering Security: Essential Elements  

E-Print Network (OSTI)

Glisson,W.B. Welland,R. The Second International Conference on Availability, Reliability and Security (ARES). 2007. Vienna, Austria pp 707-714 IEEE

Glisson, W.B.; Welland, R.; The Second International Conference on Availability, Reliability and Security (ARES).; 2007.; Vienna, Austria pp 707-714 IEEE [More Details

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


441

PROCEDURES, POLICIES AND ESSENTIAL INFORMATION  

E-Print Network (OSTI)

.......................................................................................................................................125 9.4 Vaden Health Center and second-year Practice of Medicine MD students (no classes) December 18 Tue Grades due at 11:59 p.m. WINTER-Mon GRAD ­ Spring Break (no classes) March 25 Tue Grades due at 11:59 p.m. Applies to all programs, unless

Ford, James

442

PROCEDURES, POLICIES AND ESSENTIAL INFORMATION  

E-Print Network (OSTI)

.......................................................................................................................................129 9.4 Student Health Services Vaden Health Center classes) December 16 Tue Grades due at 11:59 p.m. WINTER QUARTER (TERM CODE 1094; MD PROGRAM Q2 AND Q5 23-30 Mon-Mon GRAD ­ Spring Break (no classes) March 24 Tue Grades due at 11:59 p.m. Applies to all

Ford, James

443

Message from Essential Cash Controls  

E-Print Network (OSTI)

Services #12;Internal Audit of Laboratory Safety by Audit Manager Noahn Montemayor, UC Riverside Audit & Advisory Services Responsibility for Campus Laboratory Safety Laboratory safety is the responsibility and roles in the laboratory. The role of Environmental Health & Safety (EH&S) is to advise the campus

Sanders, Seth

444

Appendix B Essential Statistical Thermodynamics  

Science Conference Proceedings (OSTI)

... Ih 60 Sn n/2 Cn, Cnv, Cnh n Dn, Dnh, Dnd 2n For example, the benzene molecule (C6H6) belongs to the D6h point group. From Table II, = 12. ...

2012-10-04T23:59:59.000Z

445

An algorithm for the estimation of a regression function by continuous piecewise linear functions  

Science Conference Proceedings (OSTI)

The problem of the estimation of a regression function by continuous piecewise linear functions is formulated as a nonconvex, nonsmooth optimization problem. Estimates are defined by minimization of the empirical L 2 risk over a ... Keywords: Nonparametric regression, Nonsmooth optimization, Semismooth functions, Subdifferential

Adil Bagirov; Conny Clausen; Michael Kohler

2010-01-01T23:59:59.000Z

446

A new function algebra of EXPTIME functions by safe nested recursion  

Science Conference Proceedings (OSTI)

Bellantoni and Cook have given a function-algebra characterization of the polynomial-time computable functions via an unbounded recursion scheme which is called safe recursion. Inspired by their work, we characterize the exponential-time computable functions ... Keywords: EXPTIME, Implicit computational complexity

Toshiyasu Arai; Naohi Eguchi

2009-08-01T23:59:59.000Z

447

Functional Materials for Energy | Advanced Materials | ORNL  

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

Energy Storage Fuel Cells Thermoelectrics Separations Materials Catalysis Sensor Materials Polymers and Composites Carbon Fiber Related Research Chemistry and Physics at Interfaces Materials Synthesis from Atoms to Systems Materials Characterization Materials Theory and Simulation Energy Frontier Research Centers Advanced Materials Home | Science & Discovery | Advanced Materials | Research Areas | Functional Materials for Energy SHARE Functional Materials for Energy The concept of functional materials for energy occupies a very prominent position in ORNL's research and more broadly the scientific research sponsored by DOE's Basic Energy Sciences. These materials facilitate the capture and transformation of energy, the storage of energy or the efficient release and utilization of stored energy. A different kind of

448

Instabilities in the Nuclear Energy Density Functional  

E-Print Network (OSTI)

In the field of Energy Density Functionals (EDF) used in nuclear structure and dynamics, one of the unsolved issues is the stability of the functional. Numerical issues aside, some EDFs are unstable with respect to particular perturbations of the nuclear ground-state density. The aim of this contribution is to raise questions about the origin and nature of these instabilities, the techniques used to diagnose and prevent them, and the domain of density functions in which one should expect a nuclear EDF to be stable.

M. Kortelainen; T. Lesinski

2010-02-05T23:59:59.000Z

449

Green Functions of Relativistic Field Equations  

E-Print Network (OSTI)

In this paper, we restudy the Green function expressions of field equations. We derive the explicit form of the Green functions for the Klein-Gordon equation and Dirac equation, and then estimate the decay rate of the solution to the linear equations. The main motivation of this paper is to show that: (1). The formal solutions of field equations expressed by Green function can be elevated as a postulate for unified field theory. (2). The inescapable decay of the solution of linear equations implies that the whole theory of the matter world should include nonlinear interaction.

Ying-Qiu Gu

2006-12-20T23:59:59.000Z

450

Direct Laser Synthesis of Functional Coatings  

DOE Green Energy (OSTI)

The direct laser synthesis of functional coatings employs the irradiation of materials with short intensive laser pulses in a reactive atmosphere. The material is heated and plasma is ignited in the reactive atmosphere. This leads to an intensive interaction of the material with the reactive species and a coating is directly formed on the materials surface. By that functional coatings can be easily produced a fast way on steel, aluminium, and silicon by irradiation in nitrogen, methane, or even hydrogen. The influence of the processing parameters to the properties of the functional coatings will be presented for titanium nitride coating produced on titanium with the free electron laser.

P. Schaaf; Michelle D. Shinn; E. Carpene; J. Kaspar

2005-06-01T23:59:59.000Z

451

Lowner's Operator and Spectral Functions in Euclidean Jordan ...  

E-Print Network (OSTI)

Dec 26, 2004 ... Lowner's Operator and Spectral Functions in Euclidean Jordan Algebras ... functions under the framework of Euclidean Jordan algebras.

452

Scattering Functions of Yolk-Shell Particles  

SciTech Connect

The single-particle small-angle scattering properties of the yolk-shell particle, a new type of core-shell particle with a mobile core within the hosting shell, are systematically investigated. The Debye spatial autocorrelation function, pair distance distribution function and intraparticle structure factor (form factor) are calculated and compared to the corresponding scattering functions of reference systems of hard sphere and concentric core-shell particles with identical sizes. Based on our theoretical calculations, we find that the broken centrosymmetry, originating from the mobility of the trapped yolk, results in an imaginary scattering amplitude. As a result, it contributes an additional destructive interference term which smears certain features present in the scattering functions of the reference systems. Based on our theoretical models, we present the prospect of jointly using small angle neutron and x-ray scattering techniques to quantitatively determine the structural characteristics of yolk-shell particles.

Li, Xin [ORNL] [ORNL; Liu, Kao-Hsiang [National Taiwan University] [National Taiwan University; Wu, Bin [ORNL] [ORNL; Sanchez-Diaz, Luis E [ORNL] [ORNL; Smith, Gregory Scott [ORNL] [ORNL; Chen, Wei-Ren [ORNL] [ORNL

2013-01-01T23:59:59.000Z

453

Velocity Probability Density Functions for Oceanic Floats  

Science Conference Proceedings (OSTI)

Probability density functions (PDFs) of daily velocities from subsurface floats deployed in the North Atlantic and equatorial Atlantic Oceans are examined. In general, the PDFs are approximately Gaussian for small velocities, but with significant ...

Annalisa Bracco; J. H. LaCasce; Antonello Provenzale

2000-03-01T23:59:59.000Z

454

A General Framework for Convective Trigger Functions  

Science Conference Proceedings (OSTI)

A general framework for the trigger function used in convective parameterization routines in mesoscale models is proposed. The framework is based on the diagnosis of the accessibility of potential buoyant energy. Specifically, the trigger ...

Robert F. Rogers; J. M. Fritsch

1996-11-01T23:59:59.000Z

455

Computing proximal points of nonconvex functions  

E-Print Network (OSTI)

The search direction used in an inexact proximal point algorithm is an .... term is a convex function on an open neighbourhood V of x; see [35, Thm. 10.33, p. ...... (3c

456

Functionalization and applications of carbon nanotubes  

E-Print Network (OSTI)

Carbon nanotubes (CNTs) possess a unique set of electrical and mechanical properties and have been used in a variety of applications. In this thesis, we explore strategies to functionalize CNTs as well as applications which ...

Schnorr, Jan M. (Jan Markus)

2012-01-01T23:59:59.000Z

457

On single nucleon wave functions in nuclei  

Science Conference Proceedings (OSTI)

The strong and singular interaction between nucleons, makes the nuclear many body theory very complicated. Still, nuclei exhibit simple and regular features which are simply described by the shell model. Wave functions of individual nucleons may be considered just as model wave functions which bear little resemblance to the real ones. There is, however, experimental evidence for the reality of single nucleon wave functions. There is a simple method of constructing such wave functions for valence nucleons. It is shown that this method can be improved by considering the polarization of the core by the valence nucleon. This gives rise to some rearrangement energy which affects the single valence nucleon energy within the nucleus.

Talmi, Igal [Weizamnn Institute of Science, Rehovot 76100 (Israel)

2011-05-06T23:59:59.000Z

458

Chemical vapor deposition of functionalized isobenzofuran polymers  

E-Print Network (OSTI)

This thesis develops a platform for deposition of polymer thin films that can be further tailored by chemical surface modification. First, we explore chemical vapor deposition of functionalized isobenzofuran films using ...

Olsson, Ylva Kristina

2007-01-01T23:59:59.000Z

459

A Functional Simulator of Spacecraft Resources  

Science Conference Proceedings (OSTI)

The SPAcecraft SIMulator (SPASIM) simulates the functions and resources of a spacecraft to quickly perform Phase A trade-off analyses and uncover any operational bottlenecks during any part of the mission. Failure modes and operational contingencies ...

Liceaga Carlos A.; Troutman Patrick A.

1997-04-01T23:59:59.000Z

460

Green's Function Approach to Inclusive Electron Scattering  

E-Print Network (OSTI)

A Green's function approach to the inclusive quasielastic ($e,e'$) scattering is presented. The components of the nuclear response are written in terms of the single-particle optical model Green's function. The explicit calculation of the Green's function can be avoided by its spectral representation, which is based on a biorthogonal expansion in terms of the eigenfunctions of the non-Hermitian optical potential and of its Hermitian conjugate. This allows one to treat final state interactions consistently in the inclusive ($e,e'$) and in the exclusive ($e,e'N$) reactions. Numerical results for the longitudinal and transverse response functions obtained in a nonrelativistic and in a relativistic framework are presented and discussed also in comparison with data.

F. Capuzzi; C. Giusti; A. Meucci; F. D. Pacati

2003-11-21T23:59:59.000Z

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


461

Velocity Probability Density Functions from Altimetry  

Science Conference Proceedings (OSTI)

Probability density functions (pdfs) are employed to evaluate the distribution of velocities in the global ocean. This study computes pdfs of ocean surface velocity using altimetric data from the TOPEX/Poseidon satellite. Results show that the ...

Sarah T. Gille; Stefan G. Llewellyn Smith

2000-01-01T23:59:59.000Z

462

Structure-Function Analysis of Edible Fats  

Science Conference Proceedings (OSTI)

This book summarizes current modern approaches in the quantification of the physical structure of fats and its relationship to macroscopic functionality. The approach taken here is a general one, where the principles and techniques presented can be applied

463

Perturbation kernels for generalized seismological data functionals...  

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

(GSDF) Submitted by Anonymous on November 3, 2011 - 12:52 Authors: Chen, Po., Jordan, T.H., Lee, E. In seismic waveform analysis and inversion, data functionals can be...

464

Water Volume as Function of Temperature (Cold)  

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

Water Volume as Function of Temperature (Cold) Name: Hank Status: student Grade: 9-12 Location: MA Country: USA Date: Winter 2011-2012 Question: At normal atmospheric pressure, and...

465

VEGETABLE LIPIDS AS COMPONENTS OF FUNCTIONAL FOODS  

E-Print Network (OSTI)

Nutritionally beneficial compounds naturally present in vegetable lipids will be subject of this minireview. This article will discuss lipidic compounds from less known vegetable sources and potential advantages of its incorporation into human diet as a functional ingredient.

M. Stuchlk; S. k; Milan Stuchlk; Stanislav k

2002-01-01T23:59:59.000Z

466

Omega-3 Oils: Applications in Functional Foods  

Science Conference Proceedings (OSTI)

New applications of omega-3 fatty acids from both plant and marine sources in food supplements and pharmaceuticals. Omega-3 Oils: Applications in Functional Foods Health acid analysis aocs april articles chloropropanediol contaminants detergents dietary

467

Computing covers for embedded functional dependencies  

Science Conference Proceedings (OSTI)

This paper deals with the problem of computing covers for the functional dependencies embedded in a subset of a given relation schema. We show how this problem can be simplified and present a new and efficient algorithm Reduction. By Resolution ...

G. Gottlob

1987-06-01T23:59:59.000Z

468

Parabolic cylinder functions implemented in Matlab  

E-Print Network (OSTI)

Routines for computation of Weber's parabolic cylinder functions and their derivatives are implemented in Matlab for both moderate and great values of the argument. Standard, real solutions are considered. Tables of values are included.

E. Cojocaru

2009-01-15T23:59:59.000Z

469

Soybeans as Functional Foods and Ingredients  

Science Conference Proceedings (OSTI)

Soybeans as Functional Foods and Ingredients is written to serve as a reference for food product developers, food technologists, nutritionists, plant breeders, academic and government professionals, college graduates, and anyone who is interested in learni

470

Dipole rescattering and the nuclear structure function  

Science Conference Proceedings (OSTI)

In the framework of the dipole model, we study the effects of the dipole multiple scatterings in a nuclear target and compute the nuclear structure function. We compare different unitarization schemes and confront our results with the E665 data.

Carvalho, F. [Depto de Ciencias Exatas e da Terra, Universidade Federal de Sao Paulo, SP (Brazil); Goncalves, V. P. [Instituto de Fisica e Matematica, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900, Pelotas, RS (Brazil); Navarra, F. S.; Oliveira, E. G. [Instituto de Fisica, Universidade de Sao Paulo Rua do Matao, Travessa R, 187, 05508-090 Sao Paulo, SP (Brazil)

2013-03-25T23:59:59.000Z

471

Effects as functions on projective Hilbert space  

E-Print Network (OSTI)

The set of effect operators in a complex Hilbert space can be injectively embedded into the set of functions from the set of one-dimensional projections to the real interval [0,1]. Properties of this injection are investigated.

P. Busch; S. P. Gudder

2013-03-26T23:59:59.000Z

472

Deductive Hardware Design: A Functional Approach  

Science Conference Proceedings (OSTI)

The goal of deductive design is the systematic construction of a system implementation starting from its behavioural specification according to formal, provably correct rules. We use Haskell to formulate a functional model of directional, synchronous ...

Bernhard Mller

1998-01-01T23:59:59.000Z

473

Functional quantum biology in photosynthesis and magnetoreception  

E-Print Network (OSTI)

Is there a functional role for quantum mechanics or coherent quantum effects in biological processes? While this question is as old as quantum theory, only recently have measurements on biological systems on ultra-fast time-scales shed light on a possible answer. In this review we give an overview of the two main candidates for biological systems which may harness such functional quantum effects: photosynthesis and magnetoreception. We discuss some of the latest evidence both for and against room temperature quantum coherence, and consider whether there is truly a functional role for coherence in these biological mechanisms. Finally, we give a brief overview of some more speculative examples of functional quantum biology including the sense of smell, long-range quantum tunneling in proteins, biological photoreceptors, and the flow of ions across a cell membrane.

Lambert, Neill; Cheng, Yuan-Chung; Li, Che-Ming; Chen, Guang-Yin; Nori, Franco

2012-01-01T23:59:59.000Z

474

Functional quantum biology in photosynthesis and magnetoreception  

E-Print Network (OSTI)

Is there a functional role for quantum mechanics or coherent quantum effects in biological processes? While this question is as old as quantum theory, only recently have measurements on biological systems on ultra-fast time-scales shed light on a possible answer. In this review we give an overview of the two main candidates for biological systems which may harness such functional quantum effects: photosynthesis and magnetoreception. We discuss some of the latest evidence both for and against room temperature quantum coherence, and consider whether there is truly a functional role for coherence in these biological mechanisms. Finally, we give a brief overview of some more speculative examples of functional quantum biology including the sense of smell, long-range quantum tunneling in proteins, biological photoreceptors, and the flow of ions across a cell membrane.

Neill Lambert; Yueh-Nan Chen; Yuan-Chung Cheng; Che-Ming Li; Guang-Yin Chen; Franco Nori

2012-05-04T23:59:59.000Z

475

Physicochemically functional ultrathin films by interfacial polymerization  

DOE Patents (OSTI)

Interfacially-polymerized ultrathin films containing physicochemically functional groups are disclosed, both with and without supports. Various applications are disclosed, including membrane electrodes, selective membranes and sorbents, biocompatible materials, targeted drug delivery, and narrow band optical absorbers. 3 figs.

Lonsdale, H.K.; Babcock, W.C.; Friensen, D.T.; Smith, K.L.; Johnson, B.M.; Wamser, C.C.

1990-08-14T23:59:59.000Z

476

Gas characterization monitoring system functional design criteria  

DOE Green Energy (OSTI)

The purpose of this document is to provide the functional design criteria for the Gas Characterization Monitoring Systems (Standard-E Hydrogen Monitoring Systems,) to be designed, fabricated and installed on the Waste Tank Farms in the Hanford 200 Areas.

Schneider, T.C.

1997-06-01T23:59:59.000Z

477

NIST: Methane Symmetry Operations - Wave functions and ...  

Science Conference Proceedings (OSTI)

... 7.1 Symmetric-top rotational basis functions. The molecule-fixed components J x ,J y ,J z of the total angular momentum operator can be written as [4 ...

478

Electronic structure calculations with the Tran-Blaha modified Becke-Johnson Density Functional  

Science Conference Proceedings (OSTI)

We report a series of calculations testing the predictions of the Tran-Blaha functional for the electronic structure and magnetic properties of condensed systems. We find a general improvement in the properties of semiconducting and insulating systems, relative to calculations with standard generalized gradient approximations, although this is not always by the same mechanism as other approaches such as the quasiparticle GW method. In ZnO the valence bands are narrowed and the band gap is increased to a value in much better agreement with experiment. The Zn d states do not move to higher binding energy as they do in local-density approximation+U calculations. The functional is effective for systems with hydride anions, where correcting self-interaction errors in the 1s state is important. Similarly, it correctly opens semiconducting gaps in the alkaline-earth hexaborides. It correctly stabilizes an antiferromagnetic insulating ground state for the undoped cuprate parent CaCuO{sub 2}, but seriously degrades the agreement with experiment for ferromagnetic Gd relative to the standard local-spin-density approximation and generalized gradient approximations. This is due to positioning of the minority-spin 4f states at too low an energy. Conversely, the position of the La 4f conduction bands of La{sub 2}O{sub 3} is in reasonable accord with experiment as it is with standard functionals. The functional narrows the Fe d bands of the parent compound LaFeAsO of the iron high-temperature superconductors while maintaining the high Fe spectral weight near the Fermi energy.

Singh, David J [ORNL

2010-01-01T23:59:59.000Z

479

Green Function in the Resonance Region  

E-Print Network (OSTI)

We analyse the three-point function of vector, axial-vector and pseudoscalar currents. In the spirit of large N_C, a resonance dominated Green function is confronted with the leading high-energy behaviour from the operator product expansion. The matching is shown to be fully compatible with a chiral resonance Lagrangian and it allows to determine some of the chiral low-energy constants of O(p^6).

V. Cirigliano; G. Ecker; M. Eidemuller; A. Pich; J. Portoles

2004-04-01T23:59:59.000Z

480

Density-dependent covariant energy density functionals  

Science Conference Proceedings (OSTI)

Relativistic nuclear energy density functionals are applied to the description of a variety of nuclear structure phenomena at and away fromstability line. Isoscalar monopole, isovector dipole and isoscalar quadrupole giant resonances are calculated using fully self-consistent relativistic quasiparticle randomphase approximation, based on the relativistic Hartree-Bogoliubovmodel. The impact of pairing correlations on the fission barriers in heavy and superheavy nuclei is examined. The role of pion in constructing desnity functionals is also investigated.

Lalazissis, G. A. [Physics Department, Aristotle University of Thessaloniki, GR-54124 (Greece)

2012-10-20T23:59:59.000Z

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


481

Comparing Optical and Near Infrared Luminosity Functions  

E-Print Network (OSTI)

The Sloan Digital Sky Survey [SDSS] has measured an optical luminosity function for galaxies in 5 bands, finding 1.5 to 2.1 times more luminosity density than previous work. This note compares the SDSS luminosity density to two recent determinations of the near infrared luminosity function based on 2MASS data, and finds that an extrapolation of the SDSS results gives a 2.3 times greater near infrared luminosity density.

Edward L. Wright

2001-02-02T23:59:59.000Z

482

Experience Engineering Plus 2 Western Engineering  

E-Print Network (OSTI)

, build and maintain essential infrastructure such as: housing, airports, roads, bridges, hydroelectric

Ma, Bin

483

Function and mechanism of cyclic electron transport  

DOE Green Energy (OSTI)

In isolated intact chloroplasts from spinach, maximal rates of photosynthetic O/sub 2/ evolution (in saturating HCO/sub 3//sup -/) are associated with a critical transthylakoid pH gradient of about 3.9 units. O/sub 2/ evolution is inhibited by higher ..delta..pH values that arise when catalase is omitted from the medium; NH/sub 4/Cl and actimycin, but not the energy transfer inhibitor quercetin, decrease ..delta..pH and relieve this inhibition. The same low amount NH/sub 4/Cl added to control chloroplasts (..delta..pH=3.9) has little effect on ..delta..pH or the O/sub 2/ evolution rate. This resistance to uncoupling is due to an increase in the pumping of protons by cyclic electron flow. It suggests operation of feedback control in maintaining an optimal ATP/NADPH ratio. A general mechanism is proposed that allows the chloroplast to divert electrons from ferredoxin:NADP/sup +/ reductase into the cyclic pathway to provide a ..delta..pH appropriate to the ATP/NADPH ratio needed in the stroma. The stromal NADPH/NADP/sup +/ ratio is probably sensed indirectly by membrane components with redox mid point potentials around - 50 mV, such that reduction of these components causes partial loss of linear electron flow and commencement of cyclic turnover.

Hind, G; Crowther, D; Shahak, Y; Slovacek, R E

484

EMC effect and nuclear structure functions  

E-Print Network (OSTI)

We analyze experimental data of nuclear structure function ratios $F_2^A/F_2^D$ for obtaining optimum parton distribution functions (PDFs) in nuclei. Then, uncertainties of the nuclear PDFs are estimated by the Hessian method. Parametrization of nuclear parton distribution is investigated in the leading order of $\\alpha_s$. The parton distribution are provided at $Q^2=1 GeV^2$ with a number of parameters, which are determined by a $\\chi^2$ analysis of the data on nuclear structure function. From the analysis, we propose parton distributions at $Q^2=1 GeV^2$ for nuclei from deuteron to heavy ones with a mass number $A\\sim 208$.

S. Atashbar Tehrani; A. Mirjalili; Ali N. Khorramian

2006-08-19T23:59:59.000Z

485

Continuous spray forming of functionally gradient materials  

SciTech Connect

Researchers at Plasma Processes Inc. have produced a Functional Gradient Material (FGM) through advanced vacuum plasma spray processing for high heat flux applications. Outlined in this paper are the manufacturing methods used to develop a four component functional gradient material of copper, tungsten, boron, and boron nitride. The FGM was formed with continuous gradients and integral cooling channels eliminating bondlines and providing direct heat transfer from the high temperature exposed surface to a cooling medium. Metallurgical and x-ray diffraction analyses of the materials formed through innovative VPS (vacuum plasma spray) processing are also presented. Applications for this functional gradient structural material range from fusion reactor plasma facing components to missile nose cones to boilers.

McKechnie, T.N.; Richardson, E.H.

1995-12-01T23:59:59.000Z

486

Low work function thermionic emission materials  

DOE Green Energy (OSTI)

Thermionic energy conversion in a microminiature format shows potential as a viable, high efficiency, on-chip power source. Microminiature thermionic converters (MTC) with inter-electrode spacings on the order of microns are currently being prototyped and evaluated at Sandia. The remaining enabling technology is the development of low work function materials and processes than can be integrated into these converters. In this report, the authors demonstrate a method of incorporating thin film emitters into converters using rf sputtering. They find that the resultant films possess a minimum work function of 1.2 eV. Practical energy conversion is hindered by surface work function non-uniformity. They postulate the source of this heterogeneity to be a result of limited bulk and surface transport of barium. Several methods are proposed for maximizing transport, including increased film porosity and the use of metal terminating layers. They demonstrate a novel method for incorporating film porosity based on metal interlayer coalescence.

Zavadil, K.R.; King, D.B.; Ruffner, J.A.

1999-11-01T23:59:59.000Z

487

Smart Grid Information Security (IS) Functional Requirement  

E-Print Network (OSTI)

It is important to implement safe smart grid environment to enhance people's lives and livelihoods. This paper provides information on smart grid IS functional requirement by illustrating some discussion points to the sixteen identified requirements. This paper introduces the smart grid potential hazards that can be referred as a triggering factor to improve the system and security of the entire grid. The background of smart information infrastructure and the needs for smart grid IS is described with the adoption of hermeneutic circle as methodology. Grid information technology and security-s session discusses that grid provides the chance of a simple and transparent access to different information sources. In addition, the transformation between traditional versus smart grid networking trend and the IS importance on the communication field reflects the criticality of grid IS functional requirement identification is introduces. The smart grid IS functional requirements described in this paper are general and ...

Ling, Amy Poh Ai

2011-01-01T23:59:59.000Z

488

Abstract--There are many essential applications for quorum systems in ad-hoc networks, such as that of location servers in  

E-Print Network (OSTI)

other without being in transmission range by relaying their messages through intermediate nodes. Routing a function that maps a node's G. H. Owen is a researcher with the University of Portsmouth's School of location server have been proposed to provide this information. Li [2] divides the area into grid- squares

Augusto, Juan Carlos

489

Controlling Atomic Layer Deposition of TiO2 in Aerogels through Surface Functionalization  

DOE Green Energy (OSTI)

This report demonstrates a chemical functionalization method for controlling atomic layer deposition (ALD) of TiO{sub 2} in low-density nanoporous materials. Functionalization of silica aerogel with trimethylsilane is shown to strongly suppress TiO{sub 2} growth via ALD. Subsequent modification of the functionalization through selective removal of the hydrocarbon groups reactivates the aerogel towards TiO{sub 2} deposition. These results demonstrate the potential use of ALD as a selective tool for creating novel nanoporous materials. Nanoporous materials present significant technological advantage for a wide range of applications, including catalysis, energy storage and conversion, nanoelectronics to name just a few (1-4). Hence, there is considerable interest in developing synthetic pathways for the fabrication of nanoporous materials with tailored properties. Aerogels (AGs) are unique low-density, open-cell porous materials consisting of submicrometer pores and ligaments that can be used as a robust material platform for designing novel nanoporous materials. In recent years, a synthetic approach based on ALD on AG templates has emerged as a promising method for the directed growth of nanoporous materials (5-11, 18). This approach has been used successfully to prepare millimeter-sized high aspect ratio aerogels coated uniformly with zinc oxide (ZnO), tungsten (W) and alumina (Al{sub 2}O{sub 3}) (10, 11). The ALD process utilizes two sequential, self-limiting surface reactions resulting in a layer-by-layer growth mode. The self limiting nature of the surface reactions makes ALD a particularly suitable technique for uniform deposition onto high aspect ratio porous substrates. Additionally, chemical specificity of the surface reactions in ALD enables one to control the deposition process through selective functionalization of the substrate surface. In fact the functionalization of planar substrates such as silicon wafers with organosilane groups (R{sub n}SiX{sub 4-n} (n = 1-3)) has been shown to deactivate the substrate towards ZrO{sub 2}, HfO{sub 2}, ZnO, and TiO{sub 2} ALD processes (12-16). A possible mechanism for the deactivation effect is the blocking of surface functional groups, such as hydroxyl (OH) moieties, which serve as chemisorption sites for the ALD precursors and hence are essential for nucleating the deposition process. Henceforth, we shall refer to these surface functional groups as nucleation sites for the ALD process.

Ghosal, S; Baumann, T F; King, J S; Kucheyev, S; Wang, Y; Worsley, M A; Biener, J; Bent, S F; Hamza, A V

2009-03-09T23:59:59.000Z

490

Thermal Density Functional Theory in Context  

E-Print Network (OSTI)

This chapter introduces thermal density functional theory, starting from the ground-state theory and assuming a background in quantum mechanics and statistical mechanics. We review the foundations of density functional theory (DFT) by illustrating some of its key reformulations. The basics of DFT for thermal ensembles are explained in this context, as are tools useful for analysis and development of approximations. We close by discussing some key ideas relating thermal DFT and the ground state. This review emphasizes thermal DFT's strengths as a consistent and general framework.

Pribram-Jones, Aurora; Gross, E K U; Burke, Kieron

2013-01-01T23:59:59.000Z

491

Self-consistent Green's function method for nuclei and nuclear matter  

E-Print Network (OSTI)

Recent results obtained by applying the method of self-consistent Green's functions to nuclei and nuclear matter are reviewed. Particular attention is given to the description of experimental data obtained from the (e,e'p) and (e,e'2N) reactions that determine one and two-nucleon removal probabilities in nuclei since the corresponding amplitudes are directly related to the imaginary parts of the single-particle and two-particle propagators. For this reason and the fact that these amplitudes can now be calculated with the inclusion of all the relevant physical processes, it is useful to explore the efficacy of the method of self-consistent Green's functions in describing these experimental data. Results for both finite nuclei and nuclear matter are discussed with particular emphasis on clarifying the role of short-range correlations in determining various experimental quantities. The important role of long-range correlations in determining the structure of low-energy correlations is also documented. For a complete understanding of nuclear phenomena it is therefore essential to include both types of physical correlations. We demonstrate that recent experimental results for these reactions combined with the reported theoretical calculations yield a very clear understanding of the properties of {\\em all} protons in the nucleus. We propose that this knowledge of the properties of constituent fermions in a correlated many-body system is a unique feature of nuclear physics.

W. H. Dickhoff; C. Barbieri

2004-02-11T23:59:59.000Z

492

Large-scale functional models of visual cortex for remote sensing  

SciTech Connect

Neuroscience has revealed many properties of neurons and of the functional organization of visual cortex that are believed to be essential to human vision, but are missing in standard artificial neural networks. Equally important may be the sheer scale of visual cortex requiring {approx}1 petaflop of computation. In a year, the retina delivers {approx}1 petapixel to the brain, leading to massively large opportunities for learning at many levels of the cortical system. We describe work at Los Alamos National Laboratory (LANL) to develop large-scale functional models of visual cortex on LANL's Roadrunner petaflop supercomputer. An initial run of a simple region VI code achieved 1.144 petaflops during trials at the IBM facility in Poughkeepsie, NY (June 2008). Here, we present criteria for assessing when a set of learned local representations is 'complete' along with general criteria for assessing computer vision models based on their projected scaling behavior. Finally, we extend one class of biologically-inspired learning models to problems of remote sensing imagery.

Brumby, Steven P [Los Alamos National Laboratory; Kenyon, Garrett [Los Alamos National Laboratory; Rasmussen, Craig E [Los Alamos National Laboratory; Swaminarayan, Sriram [Los Alamos National Laboratory; Bettencourt, Luis [Los Alamos National Laboratory; Landecker, Will [PORTLAND STATE UNIV.

2009-01-01T23:59:59.000Z

493

Skew-Radial Basis Function Expansions for Empirical Modeling  

Science Conference Proceedings (OSTI)

We propose a skew-radial basis function (sRBF) expansion for the empirical model fitting problem. sRBFs employ a standard radial term, which is now made asymmetric by modulating, or skewing it with another function. The additional parameters in the skewing ... Keywords: data fitting, data interpolation, function approximation, manifold learning, radial basis function, skew-radial basis function

Arta A. Jamshidi; Michael J. Kirby

2009-11-01T23:59:59.000Z

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