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1

FAST  

Energy Science and Technology Software Center (OSTI)

002363MLTPL00 FAST - A Framework for Agile Software Testing v. 2.0  https://software.sandia.gov/trac/fast 

2

First Responder Portal  

Science Conference Proceedings (OSTI)

... more. >> see all First Responder programs and projects ... *. Bookmark and Share. photo of fire testing with NYC Fire Dept. ...

2013-04-18T23:59:59.000Z

3

LANL responds to radiological incident  

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

LANL responds to radiological incident LANL responds to radiological incident LANL responds to radiological incident Multiple tests indicate no health risks to public or employees. August 27, 2012 Aerial view of the Los Alamos Neutron Science Center(LANSCE). Aerial view of the Los Alamos Neutron Science Center (LANSCE). The contamination poses no danger to the public. The Laboratory is investigating the inadvertent spread of Technetium 99 by employees and contractors at the Lujan Neutron Scattering Center August 27, 2012-The Laboratory is investigating the inadvertent spread of Technetium 99 by employees and contractors at the Lujan Neutron Scattering Center at the Los Alamos Neutron Science Center (LANSCE), a multidisciplinary accelerator facility used for both civilian and national security research. The Laboratory has determined that about a dozen people

4

Almo Corporation, Respondent  

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

Almo Corporation, Almo Corporation, Respondent Issued: July 25, 2012 BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ORDER Case Number: 20 12-CE-1416 By the General Counsel, U.S. Depatiment of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department ofEnergy ("DOE") and Almo Corporation ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requjrements located at ,10 C.F.R. § 429.12. 2. The DOE and Respondent have negotiated the tmms of the Compmmise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

5

First Responder Initial Response Procedure  

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

The purpose of this response flow chart is to provide first responders with guidance for response to a transportation accident involving radioactive material.

6

Emergency Responder Radioactive Material Quick Reference Sheet...  

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

Transportation Emergency Preparedness Program (TEPP) Emergency Responder Radioactive Material Quick Reference Sheet...

7

First Responders | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Responders | National Nuclear Security Administration Responders | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration First Responders Home > About Us > Our Programs > Emergency Response > Responding to Emergencies > First Responders First Responders NNSA's first responders include the Radiological Assistance Program (RAP)

8

Business Owners: Respond to an Energy Emergency | Department of Energy  

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

Respond to an Energy Emergency Respond to an Energy Emergency Business Owners: Respond to an Energy Emergency Business Owners: Respond to an Energy Emergency Ensure your building is safe to occupy-Initially allow only essential, critical-operations staff into restricted areas. Ask your local or State health department for guidance on determining the safety of your building. Decide whether to activate backup power-If your backup generator doesn't automatically turn on during a power outage, you'll have to determine when to activate backup systems. First determine whether power is likely to be restored within 24 hours. If not, you may want to activate those systems to protect your business assets. Learn more Contact your fuel supplier-If you rely on fuel supplies for your business, vehicles, generators, and other equipment, contact your fuel

9

FAST LAB  

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

Photo of the entrance to the FAST Lab building. FAST LAB Located on the campus of Aiken Technical College (see map 28k) in Aiken, South Carolina, the FAST Lab is a partnership of...

10

Hydrogen Safety Training for First Responders  

Science Conference Proceedings (OSTI)

The use of hydrogen and fuel cell technologies is emerging in the U.S. through vehicle demonstration programs and early deployments of fuel cells for onsite power generation, materials handling, and other applications. To help first responders prepare for hydrogen and fuel cell use in their communities, the U.S. Department of Energy's Fuel Cell Technologies Program has developed hydrogen safety training for first responders. A web-based awareness-level course, 'Introduction to Hydrogen Safety for First Responders,' launched in 2007, is available at http://hydrogen.pnl.gov/FirstResponders/. Approximately 17,000 first responders have accessed the online training.

Fassbender, Linda L.

2011-01-01T23:59:59.000Z

11

Fast Simulation and Modeling  

Science Conference Proceedings (OSTI)

The "Fast Simulation and Modeling" (FSM) project of the IntelliGrid Consortium is developing a high-performance "look-ahead" capability for a self-healing grid8212one capable of automatically anticipating and responding to power system disturbances while continually optimizing its own performance. This project's roadmap assesses individual software solutions and equipment components that vendors will provide during the next 5 to 15 years and that electric power companies will adopt to realize FSM's self-...

2007-12-19T23:59:59.000Z

12

Responding to Emergencies | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

radiological accident or incident. Part of NNSA's mission is to protect the public, environment, and emergency responders from both terrorist and non-terrorist events by providing...

13

Operation Vigilant Sample: First Responder Training for ...  

Science Conference Proceedings (OSTI)

... US National Guard on a coordinated effort to train emergency first responders in ... country that serve as the first wave of federal response to domestic ...

2011-08-02T23:59:59.000Z

14

Emergency Responder Radioactive Material Quick Reference Sheet...  

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

This job aid is a quick reference to assist emergency responders in identifying preliminary safety precautions that should be taken during the initial response phase after arrival...

15

Criticality Safety Basics for INL Emergency Responders  

Science Conference Proceedings (OSTI)

This document is a modular self-study guide about criticality safety principles for Idaho National Laboratory emergency responders. This guide provides basic criticality safety information for people who, in response to an emergency, might enter an area that contains much fissionable (or fissile) material. The information should help responders understand unique factors that might be important in responding to a criticality accident or in preventing a criticality accident while responding to a different emergency. This study guide specifically supplements web-based training for firefighters (0INL1226) and includes information for other Idaho National Laboratory first responders. However, the guide audience also includes other first responders such as radiological control personnel. For interested readers, this guide includes clearly marked additional information that will not be included on tests. The additional information includes historical examples (Been there. Done that.), as well as facts and more in-depth information (Did you know …). INL criticality safety personnel revise this guide as needed to reflect program changes, user requests, and better information. Revision 0, issued May 2007, established the basic text. Revision 1 incorporates operation, program, and training changes implemented since 2007. Revision 1 increases focus on first responders because later responders are more likely to have more assistance and guidance from facility personnel and subject matter experts. Revision 1 also completely reorganized the training to better emphasize physical concepts behind the criticality controls that help keep emergency responders safe. The changes are based on and consistent with changes made to course 0INL1226.

Valerie L. Putman

2012-08-01T23:59:59.000Z

16

Responding to Emergencies | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Responding to Emergencies | National Nuclear Security Administration Responding to Emergencies | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Responding to Emergencies Home > About Us > Our Programs > Emergency Response > Responding to Emergencies Responding to Emergencies emergency response logo NNSA serves as the premier technical leader in

17

Criticality Safety Basics for INL Emergency Responders  

SciTech Connect

This document is a modular self-study guide about criticality safety principles for Idaho National Laboratory emergency responders. This guide provides basic criticality safety information for people who, in response to an emergency, might enter an area that contains much fissionable (or fissile) material. The information should help responders understand unique factors that might be important in responding to a criticality accident or in preventing a criticality accident while responding to a different emergency.

This study guide specifically supplements web-based training for firefighters (0INL1226) and includes information for other Idaho National Laboratory first responders. However, the guide audience also includes other first responders such as radiological control personnel.

For interested readers, this guide includes clearly marked additional information that will not be included on tests. The additional information includes historical examples (Been there. Done that.), as well as facts and more in-depth information (Did you know …).

INL criticality safety personnel revise this guide as needed to reflect program changes, user requests, and better information. Revision 0, issued May 2007, established the basic text. Revision 1 incorporates operation, program, and training changes implemented since 2007. Revision 1 increases focus on first responders because later responders are more likely to have more assistance and guidance from facility personnel and subject matter experts. Revision 1 also completely reorganized the training to better emphasize physical concepts behind the criticality controls that help keep emergency responders safe. The changes are based on and consistent with changes made to course 0INL1226.

Valerie L. Putman

2012-08-01T23:59:59.000Z

18

Categorical Exclusion Determinations: National Energy Technology Laboratory  

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

19, 2011 19, 2011 CX-005634: Categorical Exclusion Determination Characterization of Hydrocarbon Samples and/or Qualitative/Quantitative Analysis of Hydrocarbon Mixtures CX(s) Applied: B3.6 Date: 04/19/2011 Location(s): Pittsburgh, Pennsylvania Office(s): Fossil Energy, National Energy Technology Laboratory April 19, 2011 CX-005633: Categorical Exclusion Determination Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct Medium Voltage Connection CX(s) Applied: A1, A11, B3.6, B4.4, B5.1 Date: 04/19/2011 Location(s): San Jose, California Office(s): Electricity Delivery and Energy Reliability, National Energy Technology Laboratory April 19, 2011 CX-005632: Categorical Exclusion Determination Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct

19

Hay harvesting services respond to market trends  

E-Print Network (OSTI)

services respond to market trends by Steven Blank, Karenyears, there has been a trend in California from harvesting1,300 pounds or more. This trend is influencing how hay-

Blank, Steven; Klonsky, Karen; Fuller, Kate

2009-01-01T23:59:59.000Z

20

Introduction to Hydrogen Safety for First Responders  

DOE Green Energy (OSTI)

This article is intended to inform firefighters about a new web-based training course called "Introduction to Hydrogen Safety for First Responders." It provides a very brief overview of the course contents, the web address to access the online course, where to get CDs and hard copies of the course, and who to contact for further information.

Fassbender, Linda L.; Akers, Bret M.; Cooper, Christy

2007-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Natural Gas Annual Respondent Query System  

Gasoline and Diesel Fuel Update (EIA)

loading new table loading new table Home > Natural Gas > Natural Gas Annual Respondent Query System Natural Gas Annual Respondent Query System (EIA-176 Data through 2012) Report: 176 Natural Gas Deliveries 176 Natural Gas Supply Items 176 Natural Gas Other Disposition Items 176 Type of Operations and Sector Items 176 Continuation Text Lines 176 Company List 191 Field Level Storage Data 757 Processing Capacity 176 Custom Report (User-defined) Years: 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 to 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Sort by: Area, Company, Item Company, Area, Item Item, Area, Company Company: Show only Company ID Show only Company Name Show both Company ID, Name 2012 Total

22

Energy Department Emergency Response Team Ready to Respond to...  

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

Department Emergency Response Team Ready to Respond to Hurricane Irene Energy Department Emergency Response Team Ready to Respond to Hurricane Irene August 26, 2011 - 12:15pm...

23

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

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

9, 2011 9, 2011 CX-005634: Categorical Exclusion Determination Characterization of Hydrocarbon Samples and/or Qualitative/Quantitative Analysis of Hydrocarbon Mixtures CX(s) Applied: B3.6 Date: 04/19/2011 Location(s): Pittsburgh, Pennsylvania Office(s): Fossil Energy, National Energy Technology Laboratory April 19, 2011 CX-005633: Categorical Exclusion Determination Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct Medium Voltage Connection CX(s) Applied: A1, A11, B3.6, B4.4, B5.1 Date: 04/19/2011 Location(s): San Jose, California Office(s): Electricity Delivery and Energy Reliability, National Energy Technology Laboratory April 19, 2011 CX-005632: Categorical Exclusion Determination Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct

24

The e¤ect of fast food restaurants on obesity and weight gain  

E-Print Network (OSTI)

We investigate how changes in the supply of fast food restaurants affect weight outcomes of 3 million children and 3 million pregnant women. Among ninth graders, a fast food restaurant within 0.1 miles of a school results in a 5.2 percent increase in obesity rates. Among pregnant women, a fast-food restaurant within 0.5 miles of residence results in a 1.6 percent increase in the probability of gaining over 20 kilos. The implied effects on caloric intake are one order of magnitude larger for children than for mothers, consistent with smaller travel cost for adults. Non-fast food restaurants and future fast-food restaurants are uncorrelated with weight outcomes. (JEL I12, J13, J16, L83) In the public debate over obesity it is often assumed the widespread availability of fast food restaurants is an important determinant of obesity rates. Policy makers in several cities have responded by restricting the availability or content of fast food, or by requiring posting of the caloric content of the meals (Julie Samia Mair, Matthew

Janet Currie; Stefano Dellavigna; Enrico Moretti; Vikram Pathania

2010-01-01T23:59:59.000Z

25

Fast valve  

DOE Patents (OSTI)

A fast valve is disclosed that can close on the order of 7 milliseconds. It is closed by the force of a compressed air spring with the moving parts of the valve designed to be of very light weight and the valve gate being of wedge shaped with O-ring sealed faces to provide sealing contact without metal to metal contact. The combination of the O-ring seal and an air cushion create a soft final movement of the valve closure to prevent the fast air acting valve from having a harsh closing. 4 figs.

Van Dyke, W.J.

1992-04-07T23:59:59.000Z

26

Fast valve  

DOE Patents (OSTI)

A fast valve is disclosed that can close on the order of 7 milliseconds. It is closed by the force of a compressed air spring with the moving parts of the valve designed to be of very light weight and the valve gate being of wedge shaped with O-ring sealed faces to provide sealing contact without metal to metal contact. The combination of the O-ring seal and an air cushion create a soft final movement of the valve closure to prevent the fast air acting valve from having a harsh closing.

Van Dyke, William J. (Grafton, VA)

1992-01-01T23:59:59.000Z

27

NIST Offering Free Access to Standards for First Responders  

Science Conference Proceedings (OSTI)

NIST Offering Free Access to Standards for First Responders. From NIST Tech Beat: April 26, 2011. ...

2011-04-26T23:59:59.000Z

28

MTBE Prices Responded to Natural Gas Prices  

Gasoline and Diesel Fuel Update (EIA)

6 6 Notes: On top of the usual factors impacting gasoline prices, natural gas has had some influence recently. MTBE is an oxygenate used in most of the RFG consumed in the U.S. Generally, it follows gasoline prices and its own supply/demand balance factors. But this winter, we saw it respond strongly to natural gas prices. MTBE is made from methanol and isobutylene, which in turn come from methane and butane. Both methane and butane come from natural gas streams. Until this year, the price of natural gas has been so low that it had little effect. But the surge that occurred in December and January pulled MTBE up . Keep in mind that about 11% MTBE is used in a gallon of RFG, so a 30 cent increase in MTBE is only about a 3 cent increase in the price of RFG. While we look ahead at this summer, natural gas prices should be

29

Manhattan Project: Fast Neutron Experiment  

Office of Scientific and Technical Information (OSTI)

An experiment to determine the cross section of uranium-235 for fast neutrons. The target is the small pile of cubes of uranium hydride. The uranium target is surrounded by larger...

30

NNSA hosts Illinois emergency responders during technical exchange...  

National Nuclear Security Administration (NNSA)

Illinois emergency responders during technical exchange meeting | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the...

31

Training Program EHS-145: First Responder Hazards Awareness Training  

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

45: First Responder Hazards Awareness Training COURSE SYLLABUS Subject Category: Emergency Preparedness Schedule: NA Course Length: 15-30 minutes Medical Approval: NA Delivery...

32

News and Update: National Science Foundation Responds to ...  

Science Conference Proceedings (OSTI)

National Science Foundation Responds to Terrorist Assault with Emergency Research, .... the WTC and the response of hospitals and other emergency services.

33

ORISE: REAC/TS trains emergency responders in preparation for...  

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

Emergency Response Training REACTS trains emergency responders in preparation for Pan American Games REACTS conducts radiation emergency medical response training around the...

34

Fast neutron dosimetry  

Science Conference Proceedings (OSTI)

This progress report concentrates on two major areas of dosimetry research: measurement of fast neutron kerma factors for several elements for monochromatic and white spectrum neutron fields and determination of the response of thermoluminescent phosphors to various ultra-soft X-ray energies and beta-rays. Dr. Zhixin Zhou from the Shanghai Institute of Radiation Medicine, People's Republic of China brought with him special expertise in the fabrication and use of ultra-thin TLD materials. Such materials are not available in the USA. The rather unique properties of these materials were investigated during this grant period.

DeLuca, P.M. Jr.; Pearson, D.W.

1992-01-01T23:59:59.000Z

35

Total Acid Value Titration of Hydrotreated Biomass Fast Pyrolysis Oil: Determination of Carboxylic Acids and Phenolics with Multiple End-Point Detection  

Science Conference Proceedings (OSTI)

Total acid value titration has long been used to estimate corrosive potential of petroleum crude oil and fuel oil products. The method commonly used for this measurement, ASTM D664, utilizes KOH in isopropanol as the titrant with potentiometric end point determination by pH sensing electrode and Ag/AgCl reference electrode with LiCl electrolyte. A natural application of the D664 method is titration of pyrolysis-derived bio-oil, which is a candidate for refinery upgrading to produce drop in fuels. Determining the total acid value of pyrolysis derived bio-oil has proven challenging and not necessarily amenable to the methodology employed for petroleum products due to the different nature of acids present. We presented an acid value titration for bio-oil products in our previous publication which also utilizes potentiometry using tetrabutylammonium hydroxide in place of KOH as the titrant and tetraethylammonium bromide in place of LiCl as the reference electrolyte to improve the detection of these types of acids. This method was shown to detect numerous end points in samples of bio-oil that were not detected by D664. These end points were attributed to carboxylic acids and phenolics based on the results of HPLC and GC-MS studies. Additional work has led to refinement of the method and it has been established that both carboxylic acids and phenolics can be determined accurately. Use of pH buffer calibration to determine half-neutralization potentials of acids in conjunction with the analysis of model compounds has allowed us to conclude that this titration method is suitable for the determination of total acid value of pyrolysis oil and can be used to differentiate and quantify weak acid species. The measurement of phenolics in bio-oil is subject to a relatively high limit of detection, which may limit the utility of titrimetric methodology for characterizing the acidic potential of pyrolysis oil and products.

Christensen, E.; Alleman, T. L.; McCormick, R. L.

2013-01-01T23:59:59.000Z

36

Local Leaders: Respond to Natural Gas Disruptions | Department of Energy  

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

Services » Energy Assurance » Emergency Preparedness » Community Services » Energy Assurance » Emergency Preparedness » Community Guidelines » Local Leaders: Respond to Natural Gas Disruptions Local Leaders: Respond to Natural Gas Disruptions Local Leaders: Respond to Natural Gas Disruptions Because natural gas is distributed through underground pipelines, delivery disruptions occur less often than electrical outages. Severe storms, flooding, and earthquakes can expose and break pipes, however. When disruptions do occur, it can take weeks or even months to restore. Communicate effectively with the public, and ensure that first responders and gas companies have everything they need to speed up restoration efforts. Effectively communicate with the public-It may be necessary to explain to the public why it takes longer to restore natural gas service

37

Washington v. DOE - Respondents' Response in Opposition to Petitioner's  

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

Washington v. DOE - Respondents' Response in Opposition to Washington v. DOE - Respondents' Response in Opposition to Petitioner's Motion Washington v. DOE - Respondents' Response in Opposition to Petitioner's Motion Department of Energy's response brief in opposition to the State of Washington's petition for review before the D.C. Circuit; Washington asked the Court to review DOE's decision to terminate development of a high-level waste repository at Yucca Mountain, and to issue a preliminary injunction enjoining DOE from taking further action to terminate the program. Washington v. DOE - Respondents' Response in Opposition to Petitioner's Motion More Documents & Publications U.S. DEPARTMENT OF ENERGY'S REPLY BRIEF IN SUPPORT OF REVIEW AND REVERSAL OF THE BOARD'S RULING ON THE MOTION TO WITHDRAW DOE's Petition for Interlocutory Review

38

DNA Damage after Continuous Irradiation: Yanch and Engelward Respond  

E-Print Network (OSTI)

We thank Beyea for his comments and would like to respond, in particular, regarding the works he cites in his letter. First, the results of our study are, in fact, consistent with the findings of many human epidemiologic ...

Yanch, Jacquelyn C.

39

Homeowners: Respond to Fuel Shortages | Department of Energy  

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

Homeowners: Respond to Fuel Shortages Homeowners: Respond to Fuel Shortages Homeowners: Respond to Fuel Shortages Homeowners: Respond to Fuel Shortages Natural disasters and other hazards can impact the energy industry's ability to produce and distribute petroleum products, including gasoline, diesel fuel, and heating oil. At the same time, the demand for fuel may spike due to evacuations, or because consumers are buying more fuel to power backup generators during electrical outages. All these factors may lead to fuel shortages, which will prompt local authorities and fuel suppliers to prioritize getting fuel to key assets such as emergency operations centers, hospitals, food supply dealers, water supply plants, and telecommunication networks. Homeowners should keep the following tips in mind:

40

Responding to Solicitations Under DOE Work For Others Program  

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

RESPONDING TO SOLICITATIONS RESPONDING TO SOLICITATIONS UNDER DOE WORK FOR OTHERS PROGRAM PURPOSE: To provide guidance on the Department's policy related to DOE's laboratories ability to respond to solicitations from non-DOE sponsors under the Work for Others (WFO) program. SCOPE: This chapter provides guidance on the effect of laws, regulations, and statutes to DOE/NNSA WFO policy related to the prohibition of DOE Federally Funded Research and Development Centers (FFRDCs) and other facilities from competing directly with the domestic private sector. Particular emphasis is placed on WFO requirements governing how a DOE/NNSA site/facility management contractor operating an FFRDC or other DOE/NNSA facility may respond to Broad Agency Announcements (BAAs), financial assistance solicitations, Program Research and

Note: This page contains sample records for the topic "determination fast responding" 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

Patterns for responding to climate in shared-wall housing  

E-Print Network (OSTI)

Out of the inescapables of building come inspiration for architectural design. Decisions which respond to climate make their mark in design, just as structural requirements, lighting provisions, and the limitations of a ...

Paulos, Susan Kaufmann

1982-01-01T23:59:59.000Z

42

Federal policy towards emergency responder interoperability : a path forward  

E-Print Network (OSTI)

Emergency responders have suffered from a lack of cross-agency radio communications for the past three decades. After numerous firefighters died in the terrorist attacks of September 11, partially due to a lack of ...

Weir, Tristan John

2006-01-01T23:59:59.000Z

43

The Scalable Reasoning System Improving situational awareness for emergency responders  

E-Print Network (OSTI)

The Scalable Reasoning System Improving situational awareness for emergency responders The City of Seattle's Emergency Operations Center (EOC) is activated about eight times a year, typically due, Mayor's office, and Emergency Management personnel work to provide critical services and communicate

44

Distinguishing Pu Metal From Pu Oxide Using Fast Neutron Counting  

Science Conference Proceedings (OSTI)

We describe a method for simultaneously determining the {alpha}-ratio and k{sub eff} for fissile materials using fast neutrons. Our method is a generalization of the Hage-Cifarrelli method for determining k{sub eff} for fissile assemblies which utilizes the shape of the fast neutron spectrum. In this talk we illustrate the method using Monte Carlo simulations of the fast neutrons generated in PuO{sub 2} to calculate the fast neutron spectrum and Feynman correlations.

Verbeke, J M; Chapline, G F; Nakae, L; Wurtz, R; Sheets, S

2012-05-29T23:59:59.000Z

45

FastJet user manual  

E-Print Network (OSTI)

FastJet is a C++ package that provides a broad range of jet finding and analysis tools. It includes efficient native implementations of all widely used 2-to-1 sequential recombination jet algorithms for pp and e+e- collisions, as well as access to 3rd party jet algorithms through a plugin mechanism, including all currently used cone algorithms. FastJet also provides means to facilitate the manipulation of jet substructure, including some common boosted heavy-object taggers, as well as tools for estimation of pileup and underlying-event noise levels, determination of jet areas and subtraction or suppression of noise in jets.

Matteo Cacciari; Gavin P. Salam; Gregory Soyez

2011-11-25T23:59:59.000Z

46

Categorical Exclusion Determinations: California | Department of Energy  

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

April 28, 2011 April 28, 2011 CX-005658: Categorical Exclusion Determination International Colloquium on Environmentally Preferred Advanced Power Generation - ICEPAG 2011 CX(s) Applied: A9 Date: 04/28/2011 Location(s): Irvine, California Office(s): Fossil Energy, National Energy Technology Laboratory April 19, 2011 CX-005633: Categorical Exclusion Determination Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct Medium Voltage Connection CX(s) Applied: A1, A11, B3.6, B4.4, B5.1 Date: 04/19/2011 Location(s): San Jose, California Office(s): Electricity Delivery and Energy Reliability, National Energy Technology Laboratory April 13, 2011 CX-007094: Categorical Exclusion Determination Internal Fence Reconfiguration CX(s) Applied: B1.11 Date: 04/13/2011 Location(s): Albuquerque, California, New Mexico

47

Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

A veren, Inc., A veren, Inc., Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ORDER Case Number: 2010- CW- 0711 Issued: October 6, 2010 By the General Counsel, U.S. Department of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Averen, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements at 10 C.F.R. § 430.62. 2. The DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the

48

Energy Department Emergency Response Team Ready to Respond to Hurricane  

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

Department Emergency Response Team Ready to Respond to Department Emergency Response Team Ready to Respond to Hurricane Irene Energy Department Emergency Response Team Ready to Respond to Hurricane Irene August 26, 2011 - 12:15pm Addthis Hurricane Irene made landfall at approximately 7:30 am EDT near Cape Lookout, North Carolina with maximum sustained winds of 85 mph (Category 1). This NOAA GOES-13 satellite image captures Irene’s landfall moment. | Image courtesy of NOAA Hurricane Irene made landfall at approximately 7:30 am EDT near Cape Lookout, North Carolina with maximum sustained winds of 85 mph (Category 1). This NOAA GOES-13 satellite image captures Irene's landfall moment. | Image courtesy of NOAA Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability

49

Responding To Hurricane Sandy: DOE Situation Reports | Department of Energy  

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

Responding To Hurricane Sandy: DOE Situation Reports Responding To Hurricane Sandy: DOE Situation Reports Responding To Hurricane Sandy: DOE Situation Reports November 7, 2012 - 11:15am Addthis Sandy made landfall as a post-tropical cyclone on the southern coast of New Jersey near Atlantic City at 8 p.m. on October 29, with top sustained winds of 80 mph. | Photo courtesy of NOAA. Sandy made landfall as a post-tropical cyclone on the southern coast of New Jersey near Atlantic City at 8 p.m. on October 29, with top sustained winds of 80 mph. | Photo courtesy of NOAA. Amanda Scott Amanda Scott Former Managing Editor, Energy.gov What are the key facts? For more information about emergency preparedness, visit Ready.gov. For the latest news on Hurricane Sandy, visit the FEMA blog. November 7, 2012 - 4:02pm: Reports on Hurricane Sandy can now be found in

50

DOE Monitoring Energy Infrastructure, Responds as Isaac Makes Landfall |  

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

Monitoring Energy Infrastructure, Responds as Isaac Makes Monitoring Energy Infrastructure, Responds as Isaac Makes Landfall DOE Monitoring Energy Infrastructure, Responds as Isaac Makes Landfall August 29, 2012 - 11:45am Addthis Hurricane Isaac is makes its way toward the Gulf Coast and the Energy Department provides details on the storm’s impact, and the recovery and restoration activities being undertaken. | Photo courtesy of NOAA Hurricane Isaac is makes its way toward the Gulf Coast and the Energy Department provides details on the storm's impact, and the recovery and restoration activities being undertaken. | Photo courtesy of NOAA William Bryan William Bryan Deputy Assistant Secretary of Infrastructure Security and Energy Restoration What To Do During The Storm Listen to the direction of local authorities.

51

Local Leaders: Respond to an Energy Emergency | Department of Energy  

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

Respond to an Energy Emergency Respond to an Energy Emergency Local Leaders: Respond to an Energy Emergency Gather information-Tap the energy and emergency contacts you established before the disaster occurred to gather information and assess the nature of the emergency before moving forward with your response. What immediate damage has impacted energy assets? What is the extent of the damage? Who in the community is currently impacted? Is it possible to provide the community access to a place unaffected by the energy emergency if needed? How long will it take to restore the community to pre-emergency conditions? Effectively communicate with the public-Ensure quick information from local officials and energy suppliers is readily available and accessible, via radio, television, newspapers, the Internet, social media,

52

NNSA, IAEA Conduct Emergency Response Training for First Responders for  

National Nuclear Security Administration (NNSA)

IAEA Conduct Emergency Response Training for First Responders for IAEA Conduct Emergency Response Training for First Responders for Ports and Customs | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > Media Room > Press Releases > NNSA, IAEA Conduct Emergency Response Training for ... Press Release NNSA, IAEA Conduct Emergency Response Training for First Responders for

53

First responder information flow simulation: a tool for technology assessment  

Science Conference Proceedings (OSTI)

New information technology is becoming available for first responders at a rapid rate. Often this new technology comes with not only new capabilities but also a high price tag. Policy makers and emergency managers need a way to assess which portfolio ...

C. Donald Robinson; Donald E. Brown

2005-12-01T23:59:59.000Z

54

An imaging, communications and beamed power architecture for first responders  

Science Conference Proceedings (OSTI)

Electric power delivered as wireless beams through aerial platforms can make a large difference to the ability of first responders to find and rescue survivors in an emergency. An architecture suitable for India is proposed, synergizing developments ... Keywords: aerostat, antenna, emergency response, millimeter wave, power beaming, systems, waveguide

Narayanan Komerath

2011-12-01T23:59:59.000Z

55

CX-005631: Categorical Exclusion Determination | Department of Energy  

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

31: Categorical Exclusion Determination 31: Categorical Exclusion Determination CX-005631: Categorical Exclusion Determination Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct Medium Voltage Connection CX(s) Applied: A1, A11, B3.6, B4.4, B5.1 Date: 04/19/2011 Location(s): Raleigh, North Carolina Office(s): Electricity Delivery and Energy Reliability, National Energy Technology Laboratory North Carolina State University is assisting with the design of the silicon-carbide power electronics devices, and performing prototype testing of the components at an existing test facility and using established procedures. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005631.pdf More Documents & Publications CX-000324: Categorical Exclusion Determination CX-000312: Categorical Exclusion Determination

56

Homeowners: Respond to Power Outages | Department of Energy  

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

Power Outages Power Outages Homeowners: Respond to Power Outages Homeowners: Respond to Power Outages After a disaster, electric utilities and government officials will first work to restore power to critical infrastructure like power plants and transmission lines, water treatment facilities, and telecommunications networks, and also to hospitals, critical care facilities, and emergency response agencies. It may take several days or even weeks to restore power to individual homeowners, but here's what you can do to help prepare and recover power more quickly: Charge mobile devices-If you have power, charge your cell phones, laptops, and other mobile devices so they'll have the maximum amount of battery power stored in the event of a power outage. These devices will help you communicate with your power company, and they'll help you stay

57

Homeowners: Respond to Natural Gas Disruptions | Department of Energy  

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

Natural Gas Disruptions Natural Gas Disruptions Homeowners: Respond to Natural Gas Disruptions Homeowners: Respond to Natural Gas Disruptions Because natural gas is distributed through underground pipelines, delivery disruptions occur less often than electrical outages. Severe storms, flooding, and earthquakes can expose and break pipes, however. When disruptions do occur, it can take weeks or even months to restore. Homeowners should take care in identifying and reporting any problems, as they may pose substantial risk to public health and safety. A break in a natural gas pipeline can lead to fires and/or explosions. Many of the following guidelines would apply if you detect a propane tank leak, as well. Contact your propane retailer or local fire department in an emergency. Detect a problem-A natural gas leak can be detected by smell,

58

Challenges for Early Responders to a Nuclear / Radiological Terrorism Incident  

Science Conference Proceedings (OSTI)

Even in the best of circumstances, most municipalities would face severe challenges in providing effective incident response to a large scale radiation release caused by nuclear terrorism or accident. Compounding obvious complexities, the effectiveness of first and early responders to a radiological emergency may also be hampered by an insufficient distribution of radiation detection and monitoring equipment, local policies concerning triage and field decontamination of critical victims, malfunctioning communications, inadequate inter-agency agility, and the psychological 'fear' impact on early responders. This paper examines several issues impeding the early response to nuclear terrorism incidents with specific consideration given to the on-going and forward-thinking preparedness efforts currently being developed in the Sacramento, California region. Specific recommendations are provided addressing hot zone protocols, radiation detection and monitoring equipment, hasty patient packaging techniques, vertically and horizontally integrated pre-event training, mitigating psychological fear, and protocols for the effective 'hand-off' from first responders to subsequent early response-recovery teams. (authors)

Wells, M.A. [Sacramento Metropolitan Fire District, Sacramento, CA (United States); Stearns, L.J. [Shaw Environmental, Inc, Monroeville, PA (United States); Davie, A.D. [Shaw Environmental, Inc, Alpharetta, GA (United States); Day, E. [PELL Resources Company, Manassas, VA (United States)

2007-07-01T23:59:59.000Z

59

Fast Breeder Reactor studies  

Science Conference Proceedings (OSTI)

This report is a compilation of Fast Breeder Reactor (FBR) resource documents prepared to provide the technical basis for the US contribution to the International Nuclear Fuel Cycle Evaluation. The eight separate parts deal with the alternative fast breeder reactor fuel cycles in terms of energy demand, resource base, technical potential and current status, safety, proliferation resistance, deployment, and nuclear safeguards. An Annex compares the cost of decommissioning light-water and fast breeder reactors. Separate abstracts are included for each of the parts.

Till, C.E.; Chang, Y.I.; Kittel, J.H.; Fauske, H.K.; Lineberry, M.J.; Stevenson, M.G.; Amundson, P.I.; Dance, K.D.

1980-07-01T23:59:59.000Z

60

CX-005632: Categorical Exclusion Determination  

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

Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct Medium Voltage ConnectionCX(s) Applied: A1, A11, B4.4, B5.1Date: 04/19/2011Location(s): Durham, North CarolinaOffice(s): Electricity Delivery and Energy Reliability, National Energy Technology Laboratory

Note: This page contains sample records for the topic "determination fast responding" 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

CX-005633: Categorical Exclusion Determination  

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

Fast Responding Voltage Regulator and Dynamic VAR Compensator with Direct Medium Voltage ConnectionCX(s) Applied: A1, A11, B3.6, B4.4, B5.1Date: 04/19/2011Location(s): San Jose, CaliforniaOffice(s): Electricity Delivery and Energy Reliability, National Energy Technology Laboratory

62

How to Respond to data Requests in Portfolio Manager  

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

"How To" Series How to Respond to Data Requests in Portfolio Manager ® EPA's ENERGY STAR Portfolio Manager tool helps you measure and track the energy use, water use, and greenhouse gas emissions of your properties, all in a secure online environment. You can use the results to identify under-performing buildings, set investment priorities, verify efficiency improvements, and receive EPA recognition for superior energy performance. Portfolio Manager provides the ability for organizations wishing to collect data from a variety of individuals to develop and use a custom Data Request within Portfolio Manager. You may receive Data Requests from other users or organizations to provide property or portfolio data as part of a program or initiative. Each request includes a

63

Smashing science: Livermore scientists discover how explosives respond to  

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

3 3 For immediate release: 12/12/2013 | NR-13-12-03 High Resolution Image A schematic representation of the shock experiment. The resulting energy release pushed the shock front to the left. Image by Liam Krauss/LLNL. Smashing science: Livermore scientists discover how explosives respond to shockwaves Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Watch Video A laser pulse impinging on an aluminum ablation layer (which is coated on a glass substrate to the right), which generates a rapidly expanding plasma. This small explosion pushes the ablator to the left and drives a shock wave in the sample. The experiment simultaneously measures the speed of the shock wave in the sample, and the speed of the ablator expansion, which allows Livermore researchers to estimate the pressure and density of the

64

Solving the Fast Clock Problem  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study troubleshoots then solves the problem of digital clocks running fast.

2003-12-31T23:59:59.000Z

65

little book of fast facts  

E-Print Network (OSTI)

The little book of fast facts #12;The Big Picture little book of fast facts Big Picture own sprinkling of `fast facts', fascinating snippets of information on the topic. In this book, we@wellcome.ac.uk. Find out more at www.wellcome.ac.uk/bigpicture. #12;LITTLE BOOK OF FAST FACTS Contents 2 The brain 16

Newcastle upon Tyne, University of

66

On fast reactor kinetics studies  

Science Conference Proceedings (OSTI)

The results and the program of fast reactor core time and space kinetics experiments performed and planned to be performed at the IPPE critical facility is presented. The TIMER code was taken as computation support of the experimental work, which allows transient equations to be solved in 3-D geometry with multi-group diffusion approximation. The number of delayed neutron groups varies from 6 to 8. The code implements the solution of both transient neutron transfer problems: a direct one, where neutron flux density and its derivatives, such as reactor power, etc, are determined at each time step, and an inverse one for the point kinetics equation form, where such a parameter as reactivity is determined with a well-known reactor power time variation function. (authors)

Seleznev, E. F.; Belov, A. A. [Nuclear Safety Inst. of the Russian Academy of Sciences IBRAE (Russian Federation); Matveenko, I. P.; Zhukov, A. M.; Raskach, K. F. [Inst. for Physics and Power Engineering IPPE (Russian Federation)

2012-07-01T23:59:59.000Z

67

CX-002704: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination CX-002704: Categorical Exclusion Determination Fast Charging Electric Vehicle Demonstration Project in Charlottesville, Virginia CX(s) Applied: B3.6,...

68

Fast Turbulent Reconnection  

E-Print Network (OSTI)

Reconnection is the process by which magnetic fields in a conducting fluid change their topology. This process is essential for understanding a wide variety of astrophysical processes, including stellar and galactic dynamos and astrophysical turbulence. To account for solar flares, solar cycles and the structure of the galactic magnetic field reconnection must be fast, propagating with a speed close to the Alfven speed. We show that the presence of a random magnetic field component substantially enhances the reconnection rate and enables fast reconnection, i.e. reconnection that does not depend on fluid resistivity. The enhancement of the reconnection rate is achieved via a combination of two effects. First of all, only small segments of magnetic field lines are subject to direct Ohmic annihilation. Thus the fraction of magnetic energy that goes directly into fluid heating goes to zero as fluid resistivity vanishes. However, the most important enhancement comes from the fact that unlike the laminar fluid case where reconnection is constrained to proceed line by line, the presence of turbulence enables many magnetic field lines to enter the reconnection zone simultaneously. A significant fraction of magnetic energy goes into MHD turbulence and this enhances reconnection rates through an increase in the field stochasticity. In this way magnetic reconnection becomes fast when field stochasticity is accounted for. As a consequence solar and galactic dynamos are also fast, i.e. do not depend on fluid resistivity.

A. Lazarian; E. Vishniac

2000-02-03T23:59:59.000Z

69

The Integral Fast Reactor  

SciTech Connect

Argonne National Laboratory, since 1984, has been developing the Integral Fast Reactor (IFR). This paper will describe the way in which this new reactor concept came about; the technical, public acceptance, and environmental issues that are addressed by the IFR; the technical progress that has been made; and our expectations for this program in the near term. 5 refs., 3 figs.

Till, C.E.; Chang, Y.I. (Argonne National Lab., IL (USA)); Lineberry, M.J. (Argonne National Lab., Idaho Falls, ID (USA))

1990-01-01T23:59:59.000Z

70

Does the Fed Respond to Oil Price Shocks?  

E-Print Network (OSTI)

Abstract: Since Bernanke, Gertler and Watson (1997), a common view in the literature has been that systematic monetary policy responses to the inflation triggered by oil price shocks are an important source of aggregate fluctuations in the U.S. economy. We show that there is no evidence of systematic monetary policy responses to oil price shocks after 1987 and that this lack of a policy response is unlikely to be explained by reduced real wage rigidities. Prior to 1987, according to standard VAR models, the Federal Reserve was not responding to the inflation triggered by oil price shocks, as commonly presumed, but rather to the oil price shocks directly, consistent with a preemptive move by the Federal Reserve to counteract potential inflationary pressures. There are indications that this response is poorly identified, however, and there is no evidence that this policy response in the pre-1987 period caused substantial fluctuations in the Federal Funds rate or in real output. Our analysis suggests that the traditional monetary policy reaction framework explored by BGW and incorporated in subsequent DSGE models should be replaced by DSGE models that take account of the endogeneity of the real price of oil and that allow policy responses to depend on the underlying causes of oil price shocks.

Lutz Kilian

2009-01-01T23:59:59.000Z

71

Timed fast charger  

Science Conference Proceedings (OSTI)

In a charger for rechargeable electrochemical cells, a transformer charging circuit supplies a charging current to the battery at a fast charge rate for a predetermined time followed by a continuous slow charge rate. A normally closed automatic reset thermostat in series with the rectifier diodes in the charging circuit, and thermally coupled to them, opens after a period of time, dependent upon the heat generated by the rectifier diodes and upon the thermal mass of the thermostat and diodes, and terminates the fast charge current. A resistor, shunted across the thermostat and thermally coupled to it, establishes a slow charge rate current path when the thermostat opens. Heat generated in the resistor causes the thermostat to remain open as long as the battery is connected and ac power is supplied to the transformer primary winding.

Mullersman, F.H.

1981-10-27T23:59:59.000Z

72

Innovative design of uranium startup fast reactors  

E-Print Network (OSTI)

Sodium Fast Reactors are one of the three candidates of GEN-IV fast reactors. Fast reactors play an important role in saving uranium resources and reducing nuclear wastes. Conventional fast reactors rely on transuranic ...

Fei, Tingzhou

2012-01-01T23:59:59.000Z

73

Fast quench reactor method  

DOE Patents (OSTI)

A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a means of rapidly expanding a reactant stream, such as a restrictive convergent-divergent nozzle at its outlet end. Metal halide reactants are injected into the reactor chamber. Reducing gas is added at different stages in the process to form a desired end product and prevent back reactions. The resulting heated gaseous stream is then rapidly cooled by expansion of the gaseous stream.

Detering, Brent A. (Idaho Falls, ID); Donaldson, Alan D. (Idaho Falls, ID); Fincke, James R. (Idaho Falls, ID); Kong, Peter C. (Idaho Falls, ID); Berry, Ray A. (Idaho Falls, ID)

1999-01-01T23:59:59.000Z

74

FAST NEUTRONIC REACTOR  

DOE Patents (OSTI)

This patent relates to a reactor and process for carrying out a controlled fast neutron chain reaction. A cubical reactive mass, weighing at least 920 metric tons, of uranium metal containing predominantly U/sup 238/ and having a U/sup 235/ content of at least 7.63% is assembled and the maximum neutron reproduction ratio is limited to not substantially over 1.01 by insertion and removal of a varying amount of boron, the reactive mass being substantially freed of moderator.

Snell, A.H.

1957-12-01T23:59:59.000Z

75

Fast Fourier transform telescope  

Science Conference Proceedings (OSTI)

We propose an all-digital telescope for 21 cm tomography, which combines key advantages of both single dishes and interferometers. The electric field is digitized by antennas on a rectangular grid, after which a series of fast Fourier transforms recovers simultaneous multifrequency images of up to half the sky. Thanks to Moore's law, the bandwidth up to which this is feasible has now reached about 1 GHz, and will likely continue doubling every couple of years. The main advantages over a single dish telescope are cost and orders of magnitude larger field-of-view, translating into dramatically better sensitivity for large-area surveys. The key advantages over traditional interferometers are cost (the correlator computational cost for an N-element array scales as Nlog{sub 2}N rather than N{sup 2}) and a compact synthesized beam. We argue that 21 cm tomography could be an ideal first application of a very large fast Fourier transform telescope, which would provide both massive sensitivity improvements per dollar and mitigate the off-beam point source foreground problem with its clean beam. Another potentially interesting application is cosmic microwave background polarization.

Tegmark, Max; Zaldarriaga, Matias [Department of Physics and MIT Kavli Institute, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Center for Astrophysics, Harvard University, Cambridge, Massachusetts 02138 (United States)

2009-04-15T23:59:59.000Z

76

Education of First Responders at Yale | U.S. DOE Office of Science...  

Office of Science (SC) Website

Education of First Responders at Yale Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications SBIRSTTR Applications of...

77

Human Behavior Meets Building Intelligence: How Occupants Respond to “Open Window” Signals  

E-Print Network (OSTI)

Occupant Response to Window Control Signaling Systems,"Occupants Respond to “Open Window” Signals Katie Ackerly andincorporate operable windows for the benefits of personal

Ackerly, Katie; Brager, Gail

2012-01-01T23:59:59.000Z

78

Fast Track Special Project Proposal  

Science Conference Proceedings (OSTI)

A fast track special project is defined as a one-time Division directed endeavor that creates ... project will not result in future operating expenses. ... Cost Analysis

79

Product characterization of fast pyrolysis.  

E-Print Network (OSTI)

??Pyrolysis is an important step in the thermal conversion of biomass. During this study, the influence of temperature, heating rate and holding time on fast… (more)

Gout, J.

2010-01-01T23:59:59.000Z

80

B&W Y-12 responds to NNSA's show cause letter | Y-12 National...  

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

B&W Y-12 responds to ... B&W Y-12 responds to NNSA's show cause letter Posted: September 12, 2012 - 3:29pm On September 10, B&W Y-12 provided its response to the National Nuclear...

Note: This page contains sample records for the topic "determination fast responding" 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

A lightweight and extensible Complex Event Processing system for sense and respond applications  

Science Conference Proceedings (OSTI)

Complex Event Processing (CEP) is considered as a promising technology for enabling the evolution of service-oriented enterprise systems towards operational aware systems. CEP effectively supports the implementation of ''sense and respond'' behaviours, ... Keywords: Complex Event Processing, Event processing declarative language, Goods monitoring, Sense and respond applications, Staged Event-Driven Architecture

Ivan Zappia; Federica Paganelli; David Parlanti

2012-09-01T23:59:59.000Z

82

Letter Responding to Requests for Information Made by Department of Energy  

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

Responding to Requests for Information Made by Department of Responding to Requests for Information Made by Department of Energy (DOE) Personnel About Restarting Potomac River After a Shutdown. Letter Responding to Requests for Information Made by Department of Energy (DOE) Personnel About Restarting Potomac River After a Shutdown. Docket No. EO-05-01: This letter responds to requests for information made by Department of Energy (DOE) personnel at our meeting about how to restart Potomac River as quickly as possible after a shutdown. Letter Responding to Requests for Information Made by Department of Energy (DOE) Personnel About Restarting Potomac River After a Shutdown. More Documents & Publications Special Environmental Analysis For Actions Taken under U.S. Department of Energy Emergency Orders Regarding Operation of the Potomac River Generating

83

Compact fast analyzer of rotary cuvette type  

DOE Patents (OSTI)

A compact fast analyzer of the rotary cuvette type is provided for simultaneously determining concentrations in a multiplicity of discrete samples using either absorbance or fluorescence measurement techniques. A rigid, generally rectangular frame defines optical passageways for the absorbance and fluorescence measurement systems. The frame also serves as a mounting structure for various optical components as well as for the cuvette rotor mount and drive system. A single light source and photodetector are used in making both absorbance and fluorescence measurements. Rotor removal and insertion are facilitated by a swing-out drive motor and rotor mount. BACKGROUND OF THE INVENTION The invention relates generally to concentration measuring instruments and more specifically to a compact fast analyzer of the rotary cuvette type which is suitable for making either absorbance or fluorescence measurements. It was made in the course of, or under, a contract with the U.S. Atomic Energy Commission.

Thacker, Louis H. (Knoxville, TN)

1976-01-01T23:59:59.000Z

84

The Excess Temperature of a Rigid Fast-Response Thermometer and Its Effects on Measured Heat Flux  

Science Conference Proceedings (OSTI)

In outdoor experiments a temperature sensor is always subjected to a radiation load that results in a temperature excess error. Not only the mean temperature is effected by this radiation load but also, for a fast-responding sensor, the measured ...

A. F. G. Jacobs; K. G. McNaughton

1994-06-01T23:59:59.000Z

85

FM DANTE fast imaging and variations: emerging rf-based ultrafast imaging techniques  

Science Conference Proceedings (OSTI)

Keywords: DANTE fast imaging, NMR, burst imaging, fast chemical shift imaging, fast imaging, fast spectroscopic imaging, fast susceptibility imaging

Z. H. Cho; Y. M. Ro; I. K. Hong

1998-01-01T23:59:59.000Z

86

AeroSys, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Respondent Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 20 l 1-SCE-1624 By authority of the Secretary, U.S. Department of Energy: I . In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE») and AeroSys, Inc. {"Respondent"). The Compromise Agreement resolves the case initiated to pmsue a civil penalty for violations of DOE regulatory requirements at 10 C.F.R. §§ 429.12, 429.16, and 430.32(c). 2. The DOE and Respondent have negotiated the terms of the Compromise Agreement that resolves this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

87

Education of First Responders at Yale | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Education of First Responders at Yale Education of First Responders at Yale Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Education of First Responders at Yale Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Course on Basic Radiation Physics for First Responders Developed at: Yale University/Wright Nuclear Structure Laboratory

88

Look at this: the neural correlates of initiating and responding to bids for joint attention  

E-Print Network (OSTI)

When engaging in joint attention, one person directs another person's attention to an object (Initiating Joint Attention, IJA), and the second person's attention follows (Responding to Joint Attention, RJA). As such, joint ...

Redcay, Elizabeth

89

SANYO E &E Corp., Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

SANYO E &E Corp., Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ORDER Case Number: 2010-CE-1210 Issued: October 13,2010 By the General Counsel,...

90

Intelligrid(SM) Transmission Fast Simulation and Modeling (T-FSM)--Business Case Analysis  

Science Conference Proceedings (OSTI)

The IntelliGridSM Consortium designed a vision shared by the entire energy value chain to depict the attributes of future power systems. This vision includes a self-healing grid capable of automatically anticipating and responding to power system disturbances, while continually optimizing its own performance to guarantee proper operation of the entire system. Such automation has to rely on powerful monitoring, simulation and modeling tools. The Fast Simulation Modeling (FSM) project aims at providing the...

2005-10-28T23:59:59.000Z

91

Boosted Fast Flux Loop Alternative Cooling Assessment  

Science Conference Proceedings (OSTI)

The Gas Test Loop (GTL) Project was instituted to develop the means for conducting fast neutron irradiation tests in a domestic radiation facility. It made use of booster fuel to achieve the high neutron flux, a hafnium thermal neutron absorber to attain the high fast-to-thermal flux ratio, a mixed gas temperature control system for maintaining experiment temperatures, and a compressed gas cooling system to remove heat from the experiment capsules and the hafnium thermal neutron absorber. This GTL system was determined to provide a fast (E > 0.1 MeV) flux greater than 1.0E+15 n/cm2-s with a fast-to-thermal flux ratio in the vicinity of 40. However, the estimated system acquisition cost from earlier studies was deemed to be high. That cost was strongly influenced by the compressed gas cooling system for experiment heat removal. Designers were challenged to find a less expensive way to achieve the required cooling. This report documents the results of the investigation leading to an alternatively cooled configuration, referred to now as the Boosted Fast Flux Loop (BFFL). This configuration relies on a composite material comprised of hafnium aluminide (Al3Hf) in an aluminum matrix to transfer heat from the experiment to pressurized water cooling channels while at the same time providing absorption of thermal neutrons. Investigations into the performance this configuration might achieve showed that it should perform at least as well as its gas-cooled predecessor. Physics calculations indicated that the fast neutron flux averaged over the central 40 cm (16 inches) relative to ATR core mid-plane in irradiation spaces would be about 1.04E+15 n/cm2-s. The fast-to-thermal flux ratio would be in excess of 40. Further, the particular configuration of cooling channels was relatively unimportant compared with the total amount of water in the apparatus in determining performance. Thermal analyses conducted on a candidate configuration showed the design of the water coolant and Al-Hf alloy heat sink system is capable of maintaining all system components below their maximum temperature limits. The maximum temperature of this conduction cooling system, 224.2°C (435.6 °F) occurs in a small, localized region in the heat sink structure near the core mid-plane. The total coolant flow rate requirement for this configuration is 207 L/min (54.7 gpm). The calculated Flow Instability Ratio and Departure from Nucleate Boiling Ratio for this configuration under nominal conditions are 6.5 and 8.0, respectively, which safely exceed the minimum values of 2.0. Materials and fabrication issues inspection revealed that the neutron absorber would probably best be made from powdered Al3Hf mixed with aluminum powder and extruded or hot isostatically pressed. Although Al3Hf has not been specifically studied extensively, its mechanical and chemical properties should be very much like Al3Zr, which has been studied. Its behavior under irradiation should be very satisfactory, and resistance to corrosion will be investigated to a limited extent in planned miniplate irradiation tests in ATR. Pressurized water systems needed to effect heat removal are already available in the ATR complex, and mixed gas temperature control systems needed to trim experiment temperatures have been engineered and need only be fabricated and installed. In sum, it appears the alternately cooled configuration arrived at can be very successful. The cost estimate for this configuration indicates to

Glen R. Longhurst; Donna Post Guillen; James R. Parry; Douglas L. Porter; Bruce W. Wallace

2007-08-01T23:59:59.000Z

92

Overview of tritium fast-fission yields  

SciTech Connect

Tritium production rates are very important to the development of fast reactors because tritium may be produced at a greater rate in fast reactors than in light water reactors. This report focuses on tritium production and does not evaluate the transport and eventual release of the tritium in a fast reactor system. However, if an order-of-magnitude increase in fast fission yields for tritium is confirmed, fission will become the dominant production source of tritium in fast reactors.

Tanner, J.E.

1981-03-01T23:59:59.000Z

93

Nearly 3,000 Emergency Responders Receive EM Training | Department of  

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

3,000 Emergency Responders Receive EM Training 3,000 Emergency Responders Receive EM Training Nearly 3,000 Emergency Responders Receive EM Training February 26, 2013 - 12:00pm Addthis In a mock scenario, firefighters work with an accident victim during a Transportation Emergency Preparedness Program full field exercise In a mock scenario, firefighters work with an accident victim during a Transportation Emergency Preparedness Program full field exercise Students learn to identify labels and use instruments during a Transportation Emergency Preparedness Program class Students learn to identify labels and use instruments during a Transportation Emergency Preparedness Program class In a mock scenario, firefighters work with an accident victim during a Transportation Emergency Preparedness Program full field exercise

94

Two New Studies Show How Energy Consumers Respond to Smart Grid Technology  

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

New Studies Show How Energy Consumers Respond to Smart Grid New Studies Show How Energy Consumers Respond to Smart Grid Technology Two New Studies Show How Energy Consumers Respond to Smart Grid Technology February 14, 2011 - 3:24pm Addthis Home-energy display mobile phone application that shows how much energy an appliance is consuming. | Photo courtesy of Pecan Street Project. Home-energy display mobile phone application that shows how much energy an appliance is consuming. | Photo courtesy of Pecan Street Project. Matt Grosso Program Analyst, Office of Electricity Delivery & Energy Reliability What does this mean for me? Home smart grid technologies can help consumers save money -- and they use them to save money. Customers are willing to change the way they use electricity in response to home smart grid systems and dynamic pricing programs that save

95

Navien America, Inc., Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Navien America, Inc., Navien America, Inc., Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ORDER Case Number: 2010-CE-1712 Issued: September 20, 2010 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE'') and Navien, America, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements at 10 C.P.R. § 430.62. 2. The DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and ·incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

96

Dade Engineering Corp. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Dade Engineering Corp. Dade Engineering Corp. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5316 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Dade Engineering Corp. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at I 0 C.F.R. §§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

97

Ingersoll-Rand Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Ingersoll-Rand Ingersoll-Rand Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY Washington, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2012-SE-1608 By the General Counsel, U.S. Department of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Ingersoll-Rand ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for distribution in commerce of units of a basic model of covered product that fail to meet the energy conservation requirements located at 10 C.F.R. § 430.32( c ). 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolves this matter. A copy of the Compromise Agreement is attached hereto and incorporated

98

Leer, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Leer, Inc. Leer, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5325 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Leer, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations ofthe compliance certification requirements located at 10 C.F.R. §§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the tenus of the Compromise Agreement and evaluating the facts

99

USA Manufacturing Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

USA Manufacturing USA Manufacturing Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5336 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department ofEnet'gy ("DOE") and USA Manufacturing ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at 10 C.P.R.§§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

100

Southeast Cooler Corp. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Southeast Cooler Corp. Southeast Cooler Corp. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5331 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Southeast Cooler Corp. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at 10 C.P.R.§§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

Note: This page contains sample records for the topic "determination fast responding" 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

Kold Pacl,, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Kold Pacl,, Inc. Kold Pacl,, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5323 By the General Counsel, U.S. Depatiment of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Kold Pack, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at 10 C.F.R. §§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

102

Jamison Door Company Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Jamison Door Company Jamison Door Company Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5348 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Jamison Door Company ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at 10 C.F.R. §§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

103

Mueller Streamline Co., Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

, , Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2011-SW-2802 December 1, 2011 By the General Counsel, U.S. Department of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Mueller Streamline Co. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of Federal water conservation requirements at 10 C.F.R. § 430.32(o) and 42 U.S.C. § 6295(j). 2. The DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the

104

Amerisink, Inc., Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

, , Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ORDER Case Number: 2010-CW-0710 Issued: September 28, 2010 By the General Counsel, U.S. Department of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Amerisink, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements at 10 C.F.R. § 430.62. 2. The DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the

105

Central Moloney, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Central Moloney, Inc. Central Moloney, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-SE-4702 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Central Moloney, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for distribution in commerce in the U.S. of basic models of a covered product that failed to meet the energy conservation requirements as described at 10 C.F.R. § 431.196. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated

106

Commercial Cooler, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Commercial Cooler, Inc. Commercial Cooler, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5343 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Commercial Cooler, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at I 0 C.F.R. §§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

107

Data for First Responder Use of Photoionization Detectors for Vapor Chemical Constituents  

SciTech Connect

First responders need appropriate measurement technologies for evaluating incident scenes. This report provides information about photoionization detectors (PIDs), obtained from manufacturers and independent laboratory tests, and the use of PIDs by first responders, obtained from incident commanders in the United States and Canada. PIDs are valued for their relatively low cost, light weight, rapid detection response, and ease of use. However, it is clear that further efforts are needed to provide suitable instruments and decision tools to incident commanders and first responders for assessing potential hazardous chemical releases. Information provided in this report indicates that PIDs should always be part of a decision-making context in which other qualitative and more definitive tests and instruments are used to confirm a finding. Possible amelioratory actions ranging from quick and relatively easy fixes to those requiring significant additional effort are outlined in the report.

Keith A. Daum; Matthew G. Watrous; M. Dean Neptune; Daniel I. Michael; Kevin J. Hull; Joseph D. Evans

2006-11-01T23:59:59.000Z

108

Amerikooler, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Amerikooler, Inc. Amerikooler, Inc. Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5307 By the General Counsel, U.S. Department of Energy: 1. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Amerikooler, Inc. ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations of the compliance certification requirements located at 10 C.F.R. §§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

109

Custom Coolers, LLC Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY  

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

Custom Coolers, LLC Custom Coolers, LLC Respondent BEFORE THE U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. 20585 ) ) ) ) ) ) ORDER Case Number: 2013-CE-5315 By the General Counsel, U.S. Department of Energy: I. In this Order, I adopt the attached Compromise Agreement entered into between the U.S. Department of Energy ("DOE") and Custom Coolers, LLC ("Respondent"). The Compromise Agreement resolves the case initiated to pursue a civil penalty for violations ofthe compliance certification requirements located at 10 C.F.R. §§ 429.12 and 429.53. 2. DOE and Respondent have negotiated the terms of the Compromise Agreement that resolve this matter. A copy of the Compromise Agreement is attached hereto and incorporated by reference. 3. After reviewing the terms of the Compromise Agreement and evaluating the facts

110

Fast neutron environments.  

SciTech Connect

The goal of this LDRD project is to develop a rapid first-order experimental procedure for the testing of advanced cladding materials that may be considered for generation IV nuclear reactors. In order to investigate this, a technique was developed to expose the coupons of potential materials to high displacement damage at elevated temperatures to simulate the neutron environment expected in Generation IV reactors. This was completed through a high temperature high-energy heavy-ion implantation. The mechanical properties of the ion irradiated region were tested by either micropillar compression or nanoindentation to determine the local properties, as a function of the implantation dose and exposure temperature. In order to directly compare the microstructural evolution and property degradation from the accelerated testing and classical neutron testing, 316L, 409, and 420 stainless steels were tested. In addition, two sets of diffusion couples from 316L and HT9 stainless steels with various refractory metals. This study has shown that if the ion irradiation size scale is taken into consideration when developing and analyzing the mechanical property data, significant insight into the structural properties of the potential cladding materials can be gained in about a week.

Buchheit, Thomas Edward; Kotula, Paul Gabriel; Lu, Ping; Brewer, Luke N. (Naval Postgraduate School, Monterey, CA); Goods, Steven Howard (Sandia National Laboratories, Livermore, CA); Foiles, Stephen Martin; Puskar, Joseph David; Hattar, Khalid Mikhiel; Doyle, Barney Lee; Boyce, Brad Lee; Clark, Blythe G.

2011-10-01T23:59:59.000Z

111

FAST Program Computer Based Training  

Science Conference Proceedings (OSTI)

FAST CBT is a computer based training module that allows users to access training when desired and review it at their own pace. It provides graphics and interactive features to enhance learning. This computer based training module was created to help instruct users on an existing EPRI engineering computer program Product ID# 1004565 (FAST 1.0 Flow Path Analysis for Steam Turbines, Version 1.0). Users of this training will consist mainly of steam turbine performance engineers and outage managers. A subjec...

2010-11-17T23:59:59.000Z

112

How to respond to data requests in Portfolio Manager | ENERGY STAR  

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

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

113

Fast superconducting magnetic field switch  

DOE Patents (OSTI)

The superconducting magnetic switch or fast kicker magnet is employed with an electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater than the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles. Magnetic switches and particularly fast kicker magnets are used in the accelerator industry to quickly deflect particle beams into and out of various transport lines, storage rings, dumps, and specifically to differentially route individual bunches of particles from a train of bunches which are injected or ejected from a given ring.

Goren, Y.; Mahale, N.K.

1995-12-31T23:59:59.000Z

114

Anticipates and Responds to System Disturbances (Self-Heals) | Open Energy  

Open Energy Info (EERE)

Anticipates and Responds to System Disturbances (Self-Heals) Anticipates and Responds to System Disturbances (Self-Heals) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Anticipates and Responds to System Disturbances (Self-Heals) Focus Area: Crosscutting Topics: Policy Impacts Website: www.netl.doe.gov/smartgrid/referenceshelf/whitepapers/09.02.2010_Antic Equivalent URI: cleanenergysolutions.org/content/anticipates-and-responds-system-distu Language: English Policies: "Deployment Programs,Financial Incentives,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Public-Private Partnerships Regulations: "Cost Recovery/Allocation,Resource Integration Planning" is not in the list of possible values (Agriculture Efficiency Requirements, Appliance & Equipment Standards and Required Labeling, Audit Requirements, Building Certification, Building Codes, Cost Recovery/Allocation, Emissions Mitigation Scheme, Emissions Standards, Enabling Legislation, Energy Standards, Feebates, Feed-in Tariffs, Fuel Efficiency Standards, Incandescent Phase-Out, Mandates/Targets, Net Metering & Interconnection, Resource Integration Planning, Safety Standards, Upgrade Requirements, Utility/Electricity Service Costs) for this property.

115

How Do Investors Respond to Green Company Awards in China?1  

E-Print Network (OSTI)

quality, China has begun taking measures to increase environmental fees, to increase reliance on renewable1 How Do Investors Respond to Green Company Awards in China?1 September, 2011 Thomas Lyon, Yao Lu, Xinzheng Shi, Qie Yin Abstract We find that firms winning Green Company Awards in China from 2008 to 2011

Lyon, Thomas P.

116

Fast and informative flow simulation in a building by using fast...  

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

and informative flow simulation in a building by using fast fluid dynamics model on graphics processing unit Title Fast and informative flow simulation in a building by using...

117

MPACT Fast Neutron Multiplicity System Prototype Development  

Science Conference Proceedings (OSTI)

This document serves as both an FY2103 End-of-Year and End-of-Project report on efforts that resulted in the design of a prototype fast neutron multiplicity counter leveraged upon the findings of previous project efforts. The prototype design includes 32 liquid scintillator detectors with cubic volumes 7.62 cm in dimension configured into 4 stacked rings of 8 detectors. Detector signal collection for the system is handled with a pair of Struck Innovative Systeme 16-channel digitizers controlled by in-house developed software with built-in multiplicity analysis algorithms. Initial testing and familiarization of the currently obtained prototype components is underway, however full prototype construction is required for further optimization. Monte Carlo models of the prototype system were performed to estimate die-away and efficiency values. Analysis of these models resulted in the development of a software package capable of determining the effects of nearest-neighbor rejection methods for elimination of detector cross talk. A parameter study was performed using previously developed analytical methods for the estimation of assay mass variance for use as a figure-of-merit for system performance. A software package was developed to automate these calculations and ensure accuracy. The results of the parameter study show that the prototype fast neutron multiplicity counter design is very nearly optimized under the restraints of the parameter space.

D.L. Chichester; S.A. Pozzi; J.L. Dolan; M.T. Kinlaw; S.J. Thompson; A.C. Kaplan; M. Flaska; A. Enqvist; J.T. Johnson; S.M. Watson

2013-09-01T23:59:59.000Z

118

The thermodynamic cost of fast thought  

E-Print Network (OSTI)

After more than sixty years, Shannon's research1-3 continues to raise fundamental questions, such as the one formulated by Luce4,5, which is still unanswered: "Why is information theory not very applicable to psychological problems, despite apparent similarities of concepts?" On this topic, Pinker6, one of the foremost defenders of the computational theory of mind6, has argued that thought is simply a type of computation, and that the gap between human cognition and computational models may be illusory. In this context, in his latest book, titled Thinking Fast and Slow8, Kahneman7,8 provides further theoretical interpretation by differentiating the two assumed systems of the cognitive functioning of the human mind. He calls them intuition (system 1) determined to be an associative (automatic, fast and perceptual) machine, and reasoning (system 2) required to be voluntary and to operate logical- deductively. In this paper, we propose an ansatz inspired by Ausubel's learning theory for investigating, from the c...

de Castro, Alexandre

2012-01-01T23:59:59.000Z

119

FAST Simulation of Seismic Wind Turbine Response  

DOE Green Energy (OSTI)

This paper discusses recent additions to the computer simulation code FAST that allow a user to consider seismic loads.

Prowell, I.; Elgamal, A.; Jonkman, J.

2010-03-01T23:59:59.000Z

120

Fast Reactor Curriculum Workshop - Nuclear Engineering Division...  

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

Fast Reactor Curriculum Workshop Director's Welcome Organization Achievements Highlights Fact Sheets, Brochures & Other Documents Multimedia Library About Nuclear Energy Nuclear...

Note: This page contains sample records for the topic "determination fast responding" 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

Fast quench reactor and method  

DOE Patents (OSTI)

A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a restrictive convergent-divergent nozzle at its outlet end. Reactants are injected into the reactor chamber. The resulting heated gaseous stream is then rapidly cooled by passage through the nozzle. This "freezes" the desired end product(s) in the heated equilibrium reaction stage.

Detering, Brent A. (Idaho Falls, ID); Donaldson, Alan D. (Idaho Falls, ID); Fincke, James R. (Idaho Falls, ID); Kong, Peter C. (Idaho Falls, ID)

1998-01-01T23:59:59.000Z

122

Fast quench reactor and method  

DOE Patents (OSTI)

A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a restrictive convergent-divergent nozzle at its outlet end. Reactants are injected into the reactor chamber. The resulting heated gaseous stream is then rapidly cooled by passage through the nozzle. This "freezes" the desired end product(s) in the heated equilibrium reaction stage.

Detering, Brent A. (Idaho Falls, ID); Donaldson, Alan D. (Idaho Falls, ID); Fincke, James R. (Idaho Falls, ID); Kong, Peter C. (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

123

Fast superconducting magnetic field switch  

DOE Patents (OSTI)

The superconducting magnetic switch or fast kicker magnet is employed with electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater that the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles.

Goren, Yehuda (Mountain View, CA); Mahale, Narayan K. (The Woodlands, TX)

1996-01-01T23:59:59.000Z

124

A Fast Line-by-Line Method for Atmospheric Absorption Computations: The Automatized Atmospheric Absorption Atlas  

Science Conference Proceedings (OSTI)

A computationally fast line-by-line method for the determination of atmospheric absorption is described. This method is based on the creation of an Automatized Atmospheric Absorption Atlas (4A) covering all possible plausible atmospheric ...

N. A. Scott; A. Chedin

1981-07-01T23:59:59.000Z

125

DOE Joint Genome Institute: Waves of Berkeley Lab Responders Deploy Omics  

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

1, 2012 1, 2012 Waves of Berkeley Lab Responders Deploy Omics to Track Deepwater Horizon Oil Spill Cleanup Microbes In the aftermath of the Deepwater Horizon oil spill in the Gulf of Mexico two years ago, various strategies were deployed to prevent 4.9 million barrels of light crude oil from fouling the waters and reaching the shores. A team of Lawrence Berkeley National Laboratory (Berkeley Lab) researchers found that nature also played a role in the dispersal process as marine microbial communities responded to the oil plume that made its way from the wellhead at a depth of 5,000 feet to the surface of the water. "There was oil on the surface and oil below, but no oil in between," said microbial ecologist Terry Hazen, former head of the Ecology Department

126

New approach to timing: the fast--fast system  

SciTech Connect

A dual channel constant fraction timing discriminator incorporating multiple energy windows and coincidence logic has been developed. Incorporation of energy discrimination and fast coincidence logic into the timing channel has distinct advantages in terms of system simplicity, stability and data rates. A prototype applying the F$sup 2$ approach has been constructed and tested. The system gives a $sup 60$Co FWHM of approximately 210 psec at a singles rate of greater than 7.5 x 10$sup 5$ sec$sup -1$ (approximately 1200 coincidences/sec). (auth)

Hardy, W.H. II; Lynn, K.G.

1975-01-01T23:59:59.000Z

127

Fast wave current drive on DIII-D  

SciTech Connect

The physics of electron heating and current drive with the fast magnetosonic wave has been demonstrated on DIII-D, in reasonable agreement with theoretical modeling. A recently completed upgrade to the fast wave capability should allow full noninductive current drive in steady state advanced confinement discharges and provide some current density profile control for the Advanced Tokamak Program. DIII-D now has three four-strap fast wave antennas and three transmitters, each with nominally 2 MW of generator power. Extensive experiments have been conducted with the first system, at 60 MHz, while the two newer systems have come into operation within the past year. The newer systems are configured for 60 to 120 MHz. The measured FWCD efficiency is found to increase linearly with electron temperature as {gamma} = 0.4 {times} 10{sup 18} T{sub eo} (keV) [A/m{sup 2}W], measured up to central electron temperature over 5 keV. A newly developed technique for determining the internal noninductive current density profile gives efficiencies in agreement with this scaling and profiles consistent with theoretical predictions. Full noninductive current drive at 170 kA was achieved in a discharge prepared by rampdown of the Ohmic current. Modulation of microwave reflectometry signals at the fast wave frequency is being used to investigate fast wave propagation and damping. Additionally, rf pick-up probes on the internal boundary of the vessel provide a comparison with ray tracing codes, with dear evidence for a toroidally directed wave with antenna phasing set for current drive. There is some experimental evidence for fast wave absorption by energetic beam ions at high cyclotron harmonic resonances.

deGrassie, J.S.; Petty, C.C.; Pinsker, R.I. [and others

1995-07-01T23:59:59.000Z

128

Categorical Exclusion Determinations: Office of Energy Efficiency...  

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

Field Office August 15, 2011 CX-006584: Categorical Exclusion Determination Upgrading of Biomass Fast Pyrolysis Oil (Bio-oil) CX(s) Applied: A9, B3.6 Date: 08152011 Location(s):...

129

CX-010270: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination Developing Gas Stripping, Catalytic Fast Pyrolysis Conversion of Corn Stover to Drop-in Quality Hydrocarbons CX(s) Applied: A9, B3.6 Date: 05092013...

130

Evaluation of the role of location and distance in recruitment in respondent-driven sampling  

E-Print Network (OSTI)

of recruitment may there- fore be more complex in urban settings. They are never- theless likely to include many of the same basic patterns (eg recruiters recruiting contacts who are geographically more accessible to them in some way), and so the con- clusions... , 37 :151-207. 6. Volz E, Heckathorn D: Probability Based Estimation Theory for Respondent Driven Sampling. Journal of Official Statistics 2008, 24 :79-97. 7. Toledo L, Codeço CT, Bertoni N, Albuquerque E, Malta M, Bastos FI, Misuse obotBMSGoD: Putting...

McCreesh, Nicky; Johnston, Lisa G; Copas, Andrew; Sonnenberg, Pam; Seeley, Janet; Hayes, Richard J; Frost, Simon DW; White, Richard G

2011-10-18T23:59:59.000Z

131

Fast Start Financing | Open Energy Information  

Open Energy Info (EERE)

Fast Start Financing Fast Start Financing Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Fast Start Financing Agency/Company /Organization: Government of the Netherlands Partner: United Nations Environment Programme, United Nations Development Programme, United Nations Framework Convention on Climate Change, World Bank Topics: Finance, Market analysis Resource Type: Maps Website: www.faststartfinance.org/home Fast Start Financing Screenshot References: Fast Start Financing [1] Overview "www.faststartfinance.org aims to provide transparency about the amount, direction and use of fast start climate finance, in turn building trust in its delivery and impact. Development of the website was initiated by the government of the Netherlands, with support from the governments of Costa Rica, Colombia,

132

A fast directional continuous spherical wavelet transform  

E-Print Network (OSTI)

A fast algorithm for Antoine and Vandergheynst's (1998) directional continuous spherical wavelet transform (CSWT) is presented. Computational requirements are reduced by a factor of O(\\sqrt{N}), when N is the number of pixels on the sphere. The spherical Mexican hat wavelet Gaussianity analysis of the WMAP 1-year data performed by Vielva et al. (2003) is reproduced and confirmed using the fast CSWT. The proposed extension to directional analysis is inherently afforded by the fast CSWT algorithm.

J. D. McEwen; M. P. Hobson; A. N. Lasenby; D. J. Mortlock

2004-09-13T23:59:59.000Z

133

ENERGY DISTRIBUTION OF FAST NEUTRON BEAM  

DOE Green Energy (OSTI)

Experimental techniques are described for the spectral measurement of a collimated fast-neutron beam. A H/sub 2-/ filled cloud chamber, proton-recording nuclear plates, and threshold fission foils were used as neutron detectors in the measurements. As an application of these techniques, the energy distribution and absolute flux of the fast neutron beam emerging from the Los Alamos fast reactor was measured from 0.1 to 18 Mev. (D.E.B.)

Nereson, N.; Allison, E.; Carlson, J.; Norwood, P.; Squires, D.

1951-02-15T23:59:59.000Z

134

Fast Conversion Algorithms for Orthogonal Polynomials - Computer ...  

E-Print Network (OSTI)

Nov 13, 2008 ... a known conversion algorithm from an arbitrary orthogonal basis to the ... Fast algorithms, transposed algorithms, basis conversion, orthogonal.

135

FOAM:The Fast Ocean Atmosphere Model  

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

Models Performance User Resources Publications History Developer's Page FOAM The Fast Ocean Atmosphere Model cup2.jpeg (48474 bytes) Image made by Johan Kellum with Vis5D...

136

Fast Corn Grading System Verification and Modification.  

E-Print Network (OSTI)

??A fast corn grading system can replace the traditional method in unofficial corn grading locations. The initial design of the system proved that it can… (more)

Smith, Leanna Marie

2012-01-01T23:59:59.000Z

137

THE MATERIALS OF FAST BREEDER REACTORS  

E-Print Network (OSTI)

jet aircraft engines, and nuclear reactor fuel elements. Ancomponents of a nuclear reactor core are susceptible tothe nuclear physics of the thermal and fast neutron reactors

Olander, Donald R.

2013-01-01T23:59:59.000Z

138

Turning Big Data into fast data  

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

magazine Latest Issue:April 2013 All Issues submit Turning Big Data into fast data for nuclear weapons simulations at the exascale Solving the roadblock for tomorrow's exascale...

139

Rotor for centrifugal fast analyzers  

DOE Patents (OSTI)

The invention is an improved photometric analyzer of the rotary cuvette type, the analyzer incorporating a multicuvette rotor of novel design. The rotor (a) is leaktight, (b) permits operation in the 90/sup 0/ and 180/sup 0/ excitation modes, (c) is compatible with extensively used Centrifugal Fast Analyzers, and (d) can be used thousands of times. The rotor includes an assembly comprising a top plate, a bottom plate, and a central plate, the rim of the central plate being formed with circumferentially spaced indentations. A uv-transmitting ring is sealably affixed to the indented rim to define with the indentations an array of cuvettes. The ring serves both as a sealing means and an end window for the cuvettes.

Lee, N.E.

1984-01-01T23:59:59.000Z

140

Rotor for centrifugal fast analyzers  

DOE Patents (OSTI)

The invention is an improved photometric analyzer of the rotary cuvette type, the analyzer incorporating a multicuvette rotor of novel design. The rotor (a) is leaktight, (b) permits operation in the 90.degree. and 180.degree. excitation modes, (c) is compatible with extensively used Centrifugal Fast Analyzers, and (d) can be used thousands of times. The rotor includes an assembly comprising a top plate, a bottom plate, and a central plate, the rim of the central plate being formed with circumferentially spaced indentations. A UV-transmitting ring is sealably affixed to the indented rim to define with the indentations an array of cuvettes. The ring serves both as a sealing means and an end window for the cuvettes.

Lee, Norman E. (Knoxville, TN)

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Recent Developments In Fast Neutron Detection And Multiplicity Counting With Verification With Liquid Scintillator  

Science Conference Proceedings (OSTI)

For many years at LLNL, we have been developing time-correlated neutron detection techniques and algorithms for applications such as Arms Control, Threat Detection and Nuclear Material Assay. Many of our techniques have been developed specifically for the relatively low efficiency (a few percent) attainable by detector systems limited to man-portability. Historically, we used thermal neutron detectors (mainly {sup 3}He), taking advantage of the high thermal neutron interaction cross-sections. More recently, we have been investigating the use of fast neutron detection with liquid scintillators, inorganic crystals, and in the near future, pulse-shape discriminating plastics which respond over 1000 times faster (nanoseconds versus tens of microseconds) than thermal neutron detectors. Fast neutron detection offers considerable advantages, since the inherent nanosecond production time-scales of spontaneous fission and neutron-induced fission are preserved and measured instead of being lost by thermalization required for thermal neutron detectors. We are now applying fast neutron technology to the safeguards regime in the form of fast portable digital electronics as well as faster and less hazardous scintillator formulations. Faster detector response times and sensitivity to neutron momentum show promise for measuring, differentiating, and assaying samples that have modest to very high count rates, as well as mixed fission sources like Cm and Pu. We report on measured results with our existing liquid scintillator array, and progress on the design of a nuclear material assay system that incorporates fast neutron detection, including the surprising result that fast liquid scintillator detectors become competitive and even surpass the precision of {sup 3}He-based counters measuring correlated pairs in modest (kg) samples of plutonium.

Nakae, L; Chapline, G; Glenn, A; Kerr, P; Kim, K; Ouedraogo, S; Prasad, M; Sheets, S; Snyderman, N; Verbeke, J; Wurtz, R

2011-09-30T23:59:59.000Z

142

FAST User's Guide - Updated August 2005  

DOE Green Energy (OSTI)

The FAST (Fatigue, Aerodynamics, Structures, and Turbulence) Code is a comprehensive aeroelastic simulator capable of predicting both the extreme and fatigue loads of two- and three-bladed horizontal-axis wind turbines (HAWTs). This document covers the features of FAST and outlines its operating procedures.

Jonkman, J. M.; Buhl, M. L. Jr.

2005-10-01T23:59:59.000Z

143

Advanced Safeguards Approaches for New Fast Reactors  

SciTech Connect

This third report in the series reviews possible safeguards approaches for new fast reactors in general, and the ABR in particular. Fast-neutron spectrum reactors have been used since the early 1960s on an experimental and developmental level, generally with fertile blanket fuels to “breed” nuclear fuel such as plutonium. Whether the reactor is designed to breed plutonium, or transmute and “burn” actinides depends mainly on the design of the reactor neutron reflector and the whether the blanket fuel is “fertile” or suitable for transmutation. However, the safeguards issues are very similar, since they pertain mainly to the receipt, shipment and storage of fresh and spent plutonium and actinide-bearing “TRU”-fuel. For these reasons, the design of existing fast reactors and details concerning how they have been safeguarded were studied in developing advanced safeguards approaches for the new fast reactors. In this regard, the design of the Experimental Breeder Reactor-II “EBR-II” at the Idaho National Laboratory (INL) was of interest, because it was designed as a collocated fast reactor with a pyrometallurgical reprocessing and fuel fabrication line – a design option being considered for the ABR. Similarly, the design of the Fast Flux Facility (FFTF) on the Hanford Site was studied, because it was a successful prototype fast reactor that ran for two decades to evaluate fuels and the design for commercial-scale fast reactors.

Durst, Philip C.; Therios, Ike; Bean, Robert; Dougan, A.; Boyer, Brian; Wallace, Rick L.; Ehinger, Michael H.; Kovacic, Don N.; Tolk, K.

2007-12-15T23:59:59.000Z

144

Ice Slurry Medical Protective Organ Cooling: Buying Surgeons and Emergency Responders More Time  

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

Slurry Medical Protective Organ Cooling: Slurry Medical Protective Organ Cooling: Buying Surgeons and Emergency Responders More Time Prepared by Ken Kasza* (PhD) and Yue Wu* (PhD) *Argonne National Laboratory 10-9-09 yuewu@anl.gov; 630-252-7203 Surgical procedures are pushing the limits of technical excision and becoming less invasive through the development and use of laparoscopic procedures assisted by surgeon/machine robotic manipulations. There is an unmet need to protect critical organs and various tissue masses during the course of surgical manipulations. Multiple tissue sites and organ systems that require complex operative manipulations to cure disease are often exposed to ischemic, traumatic, and xenobiotic insults that can result in loss of function or life-threatening conditions. Ice slurry production and delivery equipment developed by

145

Review of Requirements and Capabilities For Analyzing and Responding to Beyond Design Basis Events  

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

to the to the Secretary of Energy Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Office of Nuclear Safety Office of Health, Safety and Security U.S. Department of Energy August 2011 2011 Safety Bulletin Report TABLE OF CONTENTS Acronyms i Executive Summary ii 1. Introduction 1 2. Report Overview 1 3. Overview of DOE Nuclear Facilities and Operations 2 4. Analysis of Safety Bulletin Submittals 2 5. Review of DOE and Commercial Nuclear Power Industry Requirements and 5 Guidance for BDBEs 6. Results from the Nuclear Safety Workshop 9 7. Summary of Insights and Opportunities for Improvement 10 8. Summary of Recommendations 12 9. Conclusions 14

146

The RECS relies on the respondents to provide the energy related details of their homes  

Gasoline and Diesel Fuel Update (EIA)

Householder's Perceptions of Insulation Adequacy and Householder's Perceptions of Insulation Adequacy and Drafts in the Home in 2001 Behjat Hojjati , PhD Energy Information Administration U.S. Department of Energy 1000 Independence Ave., SW, EI-63 Washington, DC 20585 behjat.hojjati@eia.doe.gov September 2004 Abstract In order to improve the estimation of end-use heating consumption, the Energy Information Administration's (EIA), 2001 Residential Energy Consumption Survey (RECS), for the first time, asked respondents to judge how drafty they perceived their homes to be as a measure of insulation quality. The analysis of the 2001 RECS data shows that householders in newly- constructed homes perceived their homes to be better insulated and less drafty than do householders in older homes. Single-family homes are perceived to be better insulated and less

147

Review of Requirements and Capabilities For Analyzing and Responding to Beyond Design Basis Events  

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

Review of Requirements Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Office of Nuclear Safety Office of Health, Safety and Security U.S. Department of Energy August 2011 2011 Safety Bulletin Report TABLE OF CONTENTS Acronyms i Executive Summary ii 1. Introduction 1 2. Report Overview 1 3. Overview of DOE Nuclear Facilities and Operations 2 4. Analysis of Safety Bulletin Submittals 2 5. Review of DOE and Commercial Nuclear Power Industry Requirements and 5 Guidance for BDBEs 6. Results from the Nuclear Safety Workshop 9 7. Summary of Insights and Opportunities for Improvement 10 8. Summary of Recommendations 12 9. Conclusions 14 Appendix A - DOE's Nuclear Safety Approach 15

148

Biosimmer: A Virtual Reality Simulator for Training First Responders in a BW Scenario  

SciTech Connect

BioSimMER (Bioterrorism Simulated Medical Emergency Response) is a Virtual Reality-based mission rehearsal and training environment. BioSimMER employs contingency-oriented, multiple-path algorithms and MOESINIOPS focused on real-world operations. BioSimMER is network-based and immerses multiple trainees in a high resolution synthetic environment, including virtual casualties and instruments that they may interact with and manipulate. Trainees are represented as individuals by virtual human Avatars. The simulation consists of several components: virtual casualties dynamically manifest the symptoms of their injuries and respond to the intervention of the trainees. Agent transport analysis is used to simulate casualty exposures and to drive the responses of simulated sensors/detectors. The selected prototype scenario is representative of combined injuries anticipated in BW operations.

Shawver, D.M.; Sobel, A.L.; Stansfield, S.A.

1998-11-11T23:59:59.000Z

149

WE?C?P?618?01: Radiological Awareness Training for First Responders and Health Care Providers  

Science Conference Proceedings (OSTI)

The Washington State Department of Health's Division of Environmental Health has been actively involved in providing radiological training for a broad spectrum of first responders and health care providers since 2003

J Adair

2005-01-01T23:59:59.000Z

150

Fast repetition rate (FRR) flasher  

DOE Patents (OSTI)

A fast repetition rate (FRR) flasher is described suitable for high flash photolysis including kinetic chemical and biological analysis. The flasher includes a power supply, a discharge capacitor operably connected to be charged by the power supply, and a flash lamp for producing a series of flashes in response to discharge of the discharge capacitor. A triggering circuit operably connected to the flash lamp initially ionizes the flash lamp. A current switch is operably connected between the flash lamp and the discharge capacitor. The current switch has at least one insulated gate bipolar transistor for switching current that is operable to initiate a controllable discharge of the discharge capacitor through the flash lamp. Control means connected to the current switch for controlling the rate of discharge of the discharge capacitor thereby to effectively keep the flash lamp in an ionized state between successive discharges of the discharge capacitor. Advantageously, the control means is operable to discharge the discharge capacitor at a rate greater than 10,000 Hz and even up to a rate greater than about 250,000 Hz. 14 figs.

Kolber, Z.; Falkowski, P.

1997-02-11T23:59:59.000Z

151

Preserving physics knowledge at the fast flux test facility  

SciTech Connect

One of the goals of the Dept. of Energy's Office of Nuclear Energy, initiated under the Fuel Cycle Research and Development Program (FCRD) and continued under the Advanced Reactor Concepts Program (ARC) is to preserve the knowledge that has been gained in the United States on Liquid Metal Reactors (LMRs) that could support the development of an environmentally and economically sound nuclear fuel cycle. The Fast Flux Test Facility (FFTF) is the most recent LMR to operate in the United States, from 1982 to 1992, and was designed as a fully instrumented test reactor with on-line, real time test control and performance monitoring of components and tests installed in the reactor. The 10 years of operation of the FFTF provided a very useful framework for testing the advances in LMR safety technology based on passive safety features that may be of increased importance to new designs after the events at Fukushima. Knowledge preservation at the FFTF is focused on the areas of design, construction, and startup of the reactor, as well as on preserving information obtained from 10 years of successful operating history and extensive irradiation testing of fuels and materials. In order to ensure protection of information at risk, the program to date has sequestered reports, files, tapes, and drawings to allow for secure retrieval. A disciplined and orderly approach has been developed to respond to client's requests for documents and data in order to minimize the search effort and ensure that future requests for this information can be readily accommodated. (authors)

Wootan, D.; Omberg, R. [Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352 (United States); Makenas, B. J. [Ares Corporation, M/S A3-06, 825 Jadwin Avenue, Richland, WA 99352 (United States); Nielsen, D. L.; Nelson, J. V. [Indian Eyes, LLC, 2815 Saint Andrews Loop, Pasco, WA 99301 (United States); Polzin, D. L. [CH2MHill Plateau Remediation Company, M/S S2-42, P.O. Box 1600, Richland, WA 99352 (United States)

2012-07-01T23:59:59.000Z

152

Knowledge Preservation at the Fast Flux Test Facility  

Science Conference Proceedings (OSTI)

One of the goals of the Department of Energy's Office of Nuclear Energy Fuel Cycle Research and Development Program (FCRD) is to preserve the knowledge that has been gained in the United States on Liquid Metal Reactors (LMRs) that could support the development of an environmentally and economically sound nuclear fuel cycle. The Fast Flux Test Facility (FFTF) is the most recent LMR to operate in the United States, from 1982 to 1992, and was designed as a fully instrumented test reactor with on-line, real time test control and performance monitoring of components and tests installed in the reactor. Knowledge preservation at the FFTF is focused on the areas of design, construction, and startup of the reactor, as well as on preserving information obtained from 10 years of successful operating history and extensive irradiation testing of fuels and materials. In order to ensure protection of information at risk, the program to date has sequestered reports, files, tapes, and drawings to allow for secure retrieval. A disciplined and orderly approach has been developed to respond to client's requests for documents and data in order to minimize the search effort and ensure that future requests for this information can be readily accommodated.

Wootan, David W.; Omberg, Ronald P.

2011-12-30T23:59:59.000Z

153

Mobile biometric device (MBD) technology : summary of selected first responder experiences in pilot projects.  

SciTech Connect

Mobile biometric devices (MBDs) capable of both enrolling individuals in databases and performing identification checks of subjects in the field are seen as an important capability for military, law enforcement, and homeland security operations. The technology is advancing rapidly. The Department of Homeland Security Science and Technology Directorate through an Interagency Agreement with Sandia sponsored a series of pilot projects to obtain information for the first responder law enforcement community on further identification of requirements for mobile biometric device technology. Working with 62 different jurisdictions, including components of the Department of Homeland Security, Sandia delivered a series of reports on user operation of state-of-the-art mobile biometric devices. These reports included feedback information on MBD usage in both operational and exercise scenarios. The findings and conclusions of the project address both the limitations and possibilities of MBD technology to improve operations. Evidence of these possibilities can be found in the adoption of this technology by many agencies today and the cooperation of several law enforcement agencies in both participating in the pilot efforts and sharing of information about their own experiences in efforts undertaken separately.

Aldridge, Chris D.

2013-06-01T23:59:59.000Z

154

A Fast and Accurate Thermistor String  

Science Conference Proceedings (OSTI)

A “fast thermistor string” has been built to accommodate the scientific need to accurately monitor internal wave activity in shelf seas and above sloping bottoms in the ocean. The performance of the thermistors and their custom-designed ...

H. van Haren; R. Groenewegen; M. Laan; B. Koster

2001-02-01T23:59:59.000Z

155

Radial power flattening in sodium fast reactors  

E-Print Network (OSTI)

In order to improve a new design for a uranium startup sodium cooled fast reactor which was proposed at MIT, this thesis evaluated radial power flattening by varying the fuel volume fraction at a fixed U-235 enrichment of ...

Krentz-Wee, Rebecca (Rebecca Elizabeth)

2012-01-01T23:59:59.000Z

156

Fast Encryption Algorithm Spectr-H64  

Science Conference Proceedings (OSTI)

This paper describes a fast hardware-oriented 64-bit block cipher SPECTR-H64 based on combination of the data-dependent permutations and data-dependent transformation of subkeys.

Nick D. Goots; Alexander A. Moldovyan; Nick A. Moldovyan

2001-05-01T23:59:59.000Z

157

DOE Research and Development Accomplishments: Fast Facts  

Office of Scientific and Technical Information (OSTI)

DOE R&D Accomplishments: Fast Facts (also on YouTube) Some links on this page may take you to non-federal websites. Their policies may differ from this site. U.S. Department of...

158

FastBit: Interactively Searching Massive Data  

Science Conference Proceedings (OSTI)

As scientific instruments and computer simulations produce more and more data, the task of locating the essential information to gain insight becomes increasingly difficult. FastBit is an efficient software tool to address this challenge. In this article, we present a summary of the key underlying technologies, namely bitmap compression, encoding, and binning. Together these techniques enable FastBit to answer structured (SQL) queries orders of magnitude faster than popular database systems. To illustrate how FastBit is used in applications, we present three examples involving a high-energy physics experiment, a combustion simulation, and an accelerator simulation. In each case, FastBit significantly reduces the response time and enables interactive exploration on terabytes of data.

Wu, Kesheng; Ahern, Sean; Bethel, E. Wes; Chen, Jacqueline; Childs, Hank; Cormier-Michel, Estelle; Geddes, Cameron; Gu, Junmin; Hagen, Hans; Hamann, Bernd; Koegler, Wendy; Lauret, Jerome; Meredith, Jeremy; Messmer, Peter; Otoo, Ekow; Perevoztchikov, Victor; Poskanzer, Arthur; Prabhat,; Rubel, Oliver; Shoshani, Arie; Sim, Alexander; Stockinger, Kurt; Weber, Gunther; Zhang, Wei-Ming

2009-06-23T23:59:59.000Z

159

Relevance: The Fast Lane: Accelerator Kiosk  

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

Relevance of the DVD "The Fast Lane: Accelerators at Fermilab" This DVD was published in early 2006. In mid-November 2009 the Large Hadron Collider at CERN in Geneva, Switzerland...

160

Fast library for number theory: an introduction  

Science Conference Proceedings (OSTI)

We discuss FLINT (Fast Library for Number Theory), a library to support computations in number theory, including highly optimised routines for polynomial arithmetic and linear algebra in exact rings.

William B. Hart

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Fast Physics Project, Brookhaven National Laboratory, BNL  

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

User Forum Report Problems FAQ Contact Us Other Links Can't View PDFs? FASTER (FAst-physics System TEstbed and Research) Project Brookhaven Climate Consortium The FASTER project...

162

Fast Automated Demand Response to Enable the Integration of Renewable...  

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

Fast Automated Demand Response to Enable the Integration of Renewable Resources Title Fast Automated Demand Response to Enable the Integration of Renewable Resources Publication...

163

Structural mechanics of fast spectrum nuclear reactor cores  

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

mechanics of fast spectrum nuclear reactor cores A fast reactor core is composed of a closely packed hexagonal arrangement of fuel, control, blanket , and shielding assemblies....

164

CMB quadrupole suppression. II. The early fast roll stage  

Science Conference Proceedings (OSTI)

Within the effective field theory of inflation, an initialization of the classical dynamics of the inflaton with approximate equipartition between the kinetic and potential energy of the inflaton leads to a brief fast roll stage that precedes the slow roll regime. The fast roll stage leads to an attractive potential in the wave equations for the mode functions of curvature and tensor perturbations. The evolution of the inflationary perturbations is equivalent to the scattering by this potential and a useful dictionary between the scattering data and observables is established. Implementing methods from scattering theory we prove that this attractive potential leads to a suppression of the quadrupole moment for CMB and B-mode angular power spectra. The scale of the potential is determined by the Hubble parameter during slow roll. Within the effective field theory of inflation at the grand unification (GUT) energy scale we find that if inflation lasts a total number of e-folds N{sub tot}{approx}59, there is a 10%-20% suppression of the CMB quadrupole and about 2%-4% suppression of the tensor quadrupole. The suppression of higher multipoles is smaller, falling off as 1/l{sup 2}. The suppression is much smaller for N{sub tot}>59, therefore if the observable suppression originates in the fast roll stage, there is the upper bound N{sub tot}{approx}59.

Boyanovsky, D.; Vega, H. J. de [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States); Observatoire de Paris, LERMA, Laboratoire Associe au CNRS UMR 8112, 61, Avenue de l'Observatoire, 75014 Paris (France); LPTHE, Universite Pierre et Marie Curie (Paris VI) et Denis Diderot (Paris VII), Laboratoire Associe au CNRS UMR 7589, Tour 24, 5eme. etage, 4, Place Jussieu, 75252 Paris, Cedex 05 (France); Sanchez, N. G. [Observatoire de Paris, LERMA, Laboratoire Associe au CNRS UMR 8112, 61, Avenue de l'Observatoire, 75014 Paris (France)

2006-12-15T23:59:59.000Z

165

THERMAL PERFORMANCE OF A FAST NEUTRON TEST CONCEPT FOR THE ADVANCED TEST REACTOR  

Science Conference Proceedings (OSTI)

Since 1967, the Advanced Test Reactor (ATR) located at Idaho National Laboratory (INL) has provided state-of-the-art experimental irradiation testing capability. A unique design is investigated herein for the purpose of providing a fast neutron flux test capability in the ATR. This new test capability could be brought on line in approximately 5 or 6 years, much sooner than a new test reactor could be built, to provide an interim fast-flux test capability in the timeframe before a fast-flux research reactor could be built. The proposed cost for this system is approximately $63M, much less than the cost of a new fast-flux test reactor. A concept has been developed to filter out a large portion of the thermal flux component by using a thermally conductive neutron absorber block. The objective of this study is to determine the feasibility of this experiment cooling concept.

Donna Post Guillen

2008-06-01T23:59:59.000Z

166

Characterization of Fast Reactor Irradiated Stainless Steels  

Science Conference Proceedings (OSTI)

As part of the overall effort to understand the role of different material and environmental variables on irradiation-assisted stress corrosion cracking (IASCC) in light water reactor (LWR) components, the Cooperative IASCC Research (CIR-II) Program has conducted irradiation experiments in the BOR-60 fast reactor near Dimitrovgrad, Russia. This project was a continuation of research on characterization of microstructure and microchemistry of stainless steel heats irradiated in the BOR-60 fast reactor, do...

2008-05-07T23:59:59.000Z

167

Microstructural evolution in fast-neutron-irradiated austenitic stainless steels  

SciTech Connect

The present work has focused on the specific problem of fast-neutron-induced radiation damage to austenitic stainless steels. These steels are used as structural materials in current fast fission reactors and are proposed for use in future fusion reactors. Two primary components of the radiation damage are atomic displacements (in units of displacements per atom, or dpa) and the generation of helium by nuclear transmutation reactions. The radiation environment can be characterized by the ratio of helium to displacement production, the so-called He/dpa ratio. Radiation damage is evidenced microscopically by a complex microstructural evolution and macroscopically by density changes and altered mechanical properties. The purpose of this work was to provide additional understanding about mechanisms that determine microstructural evolution in current fast reactor environments and to identify the sensitivity of this evolution to changes in the He/dpa ratio. This latter sensitivity is of interest because the He/dpa ratio in a fusion reactor first wall will be about 30 times that in fast reactor fuel cladding. The approach followed in the present work was to use a combination of theoretical and experimental analysis. The experimental component of the work primarily involved the examination by transmission electron microscopy of specimens of a model austenitic alloy that had been irradiated in the Oak Ridge Research Reactor. A major aspect of the theoretical work was the development of a comprehensive model of microstructural evolution. This included explicit models for the evolution of the major extended defects observed in neutron irradiated steels: cavities, Frank faulted loops and the dislocation network. 340 refs., 95 figs., 18 tabs.

Stoller, R.E.

1987-12-01T23:59:59.000Z

168

Fast neutron dosimetry. Progress report, 30 August 1992--1 September 1993  

Science Conference Proceedings (OSTI)

Research concentrated on three major areas during the last twelve months: (1) investigations of energy fluence and absorbed dose measurements using crystalline and hot pressed TLD materials exposes to ultrasoft beams of photons, (2) fast neutron kerma factor measurements for several important elements as well as NE-213 scintillation material response function determinations at the intense ``white`` source available at the WNR facility at LAMPF, and (3) kerma factor ratio determinations for carbon and oxygen to A-150 tissue equivalent plastic at the clinical fast neutron radiation facility at Harper Hospital, Detroit, MI. Progress summary reports of these efforts are given in this report.

DeLuca, P.M. Jr.; Pearson, D.W.

1993-12-01T23:59:59.000Z

169

A Fast Feedback System for CEBAF  

E-Print Network (OSTI)

A fast feedback system based on concepts of modern control theory has been implemented in the CEBAF Control System to stabilize various machine parameters. The continuous wave operation of CEBAF requires that parameters such as beam energy and position are stabilized against fast fluctuations. The beam energy must be stabilized against fast gradient and phase fluctuations in the RF accelerating system. This fast feedback system currently operates at 60 Hz rate and is integrated with EPICS. The mathematical model of the system for various feedback loops is expressed in state space formalism. The design of control law and simulation of closed-loop system response is performed using Matlab ™ and Simulink ™. This paper describes the process of designing control algorithms, implementation of the fast feedback system and operational experience with this system at CEBAF. The performance of this feedback system, while operating at much higher rates with high closed loop gain, can be enhanced by continually performing on-line identification of the system from the input and output data. System identification is the process of developing or improving an analytically derived mathematical representation of a physical system using experimental data. The current status of this feature is presented. I.

M. P. Chowdhary; G. A. Krafft; H. Shoaee; W. A. Watson

1995-01-01T23:59:59.000Z

170

Fast Crystals and Strong Glasses  

SciTech Connect

This talk describes new results on model colloid systems that provide insight into the behavior of fundamental problems in colloid physics, and more generally, for other materials as well. By visualizing the nucleation and growth of colloid crystals, we find that the incipient crystallites are much more disordered than expected, leading to a larger diversity of crystal morphologies. When the entropic contribution of these diverse morphologies is included in the free energy, we are able to describe the behavior very well, and can predict the nucleation rate surprisingly accurately. The talk also describes the glass transition in deformable colloidal particles, and will show that when the internal elasticity of the particles is included, the colloidal glass transition mimics that of molecular glass formers much more completely. These results also suggest that the elasticity at the scale of the fundamental unit, either colloid particle or molecule, determines the nature of the glass transition, as described by the "fragility."

Weitz, David [Harvard

2009-11-04T23:59:59.000Z

171

Secretary of Energy's First Biennial Report to Congress Responding to Hydrogen and Fuel Cell Technical Advisory Committee (HTAC)  

E-Print Network (OSTI)

for the production, distribution, delivery, storage, or use of hydrogen energy and fuel cells; and 3) the plan calledSecretary of Energy's First Biennial Report to Congress Responding to Hydrogen and Fuel Cell that directly relate to hydrogen and fuel cells across the Department of Energy (DOE or the Department

172

Responding to Terrorist Incidents in Your Community: Flammable-Liquid Fire Fighting Techniques for Municipal and Rural Firefighters  

SciTech Connect

The University of Nevada, Reno Fire Science Academy (FSA) applied for grant funding to develop and deliver programs for municipal, rural, and volunteer firefighters. The FSA specializes in preparing responders for a variety of emergency events, including flammable liquid fires resulting from accidents, intentional acts, or natural disasters. Live fire training on full scale burnable props is the hallmark of FSA training, allowing responders to practice critical skills in a realistic, yet safe environment. Unfortunately, flammable liquid live fire training is often not accessible to municipal, rural, or volunteer firefighters due to limited department training budgets, even though most department personnel will be exposed to flammable liquid fire incidents during the course of their careers. In response to this training need, the FSA developed a course during the first year of the grant (Year One), Responding to Terrorist Incidents in Your Community: Flammable-Liquid Fire Fighting Techniques for Municipal and Rural Firefighters. During the three years of the grant, a total of 2,029 emergency responders received this training. In Year Three, two new courses, a train-the-trainer for Responding to Terrorist Incidents in Your Community and Management of Large-Scale Disasters for Public Officials were developed and pilot tested during the Real-World Disaster Management Conference held at the FSA in June of 2007. Two research projects were conducted during Years Two and Three. The first, conducted over a two year period, evaluated student surveys regarding the value of the flammable liquids training received. The second was a needs assessment conducted for rural Nevada. Both projects provided important feedback and a basis for curricula development and improvements.

Denise Baclawski

2010-03-08T23:59:59.000Z

173

Preserving Physics Knowledge at the Fast Flux Test Facility  

Science Conference Proceedings (OSTI)

One of the goals of the Department of Energy’s Office of Nuclear Energy, initiated under the Fuel Cycle Research and Development Program (FCRD) and continued under the Advanced Reactor Concepts Program (ARC) is to preserve the knowledge that has been gained in the United States on Liquid Metal Reactors (LMRs) that could support the development of an environmentally and economically sound nuclear fuel cycle. The Fast Flux Test Facility (FFTF) is the most recent LMR to operate in the United States, from 1982 to 1992, and was designed as a fully instrumented test reactor with on-line, real time test control and performance monitoring of components and tests installed in the reactor. The 10 years of operation of the FFTF provided a very useful framework for testing the advances in LMR safety technology based on passive safety features that may be of increased importance to new designs after the events at Fukushima. Knowledge preservation at the FFTF is focused on the areas of design, construction, and startup of the reactor, as well as on preserving information obtained from 10 years of successful operating history and extensive irradiation testing of fuels and materials. In order to ensure protection of information at risk, the program to date has sequestered reports, files, tapes, and drawings to allow for secure retrieval. A disciplined and orderly approach has been developed to respond to client’s requests for documents and data in order to minimize the search effort and ensure that future requests for this information can be readily accommodated.

Wootan, David W.; Omberg, Ronald P.; Makenas, Bruce J.; Nielsen, Deborah L.; Nelson, Joseph V.; Polzin, David L.

2011-11-01T23:59:59.000Z

174

Electric Lift Truck Fast Charge Demonstration at the Port of Galveston, Texas  

Science Conference Proceedings (OSTI)

A recent review of cargo handling equipment at the Port of Galveston determined that changes needed to be made in order to improve air quality through reduced emissions, while at the same time enhancing efficiencies and realizing cost reductions. This demonstration showed that electric lift trucks using fast charging are a viable way to meet these goals.

2007-07-06T23:59:59.000Z

175

Making Fast Start Finance Work | Open Energy Information  

Open Energy Info (EERE)

Making Fast Start Finance Work Making Fast Start Finance Work Jump to: navigation, search Tool Summary Name: Making Fast Start Finance Work Agency/Company /Organization: European Climate Foundation Sector: Energy Topics: Finance Resource Type: Guide/manual, Training materials Website: www.project-catalyst.info/images/publications/2010-06-07_project_catal Making Fast Start Finance Work Screenshot References: Making Fast Start Finance Work[1] Logo: Making Fast Start Finance Work This paper aims to provide a fact base on the current sources of Fast Start Finance,including size, composition, and intended use, as well as analysis on the Fast Start Finance priorities and the institutional mechanisms needed to ensure that it delivers real impact. "...This paper aims to provide a fact base on the current sources of Fast

176

Fast Faraday Cup With High Bandwidth  

DOE Patents (OSTI)

A circuit card stripline Fast Faraday cup quantitatively measures the picosecond time structure of a charged particle beam. The stripline configuration maintains signal integrity, and stitching of the stripline increases the bandwidth. A calibration procedure ensures the measurement of the absolute charge and time structure of the charged particle beam.

Deibele, Craig E [Knoxville, TN

2006-03-14T23:59:59.000Z

177

FAWN: a fast array of wimpy nodes  

Science Conference Proceedings (OSTI)

This paper presents a fast array of wimpy nodes---FAWN---an approach for achieving low-power data-intensive data-center computing. FAWN couples low-power processors to small amounts of local flash storage, balancing computation and I/O capabilities. ...

David G. Andersen; Jason Franklin; Michael Kaminsky; Amar Phanishayee; Lawrence Tan; Vijay Vasudevan

2011-07-01T23:59:59.000Z

178

High power fast ramping power supplies  

Science Conference Proceedings (OSTI)

Hundred megawatt level fast ramping power converters to drive proton and heavy ion machines are under research and development at accelerator facilities in the world. This is a leading edge technology. There are several topologies to achieve this power level. Their advantages and related issues will be discussed.

Marneris,I.; Bajon, E.; Bonati, R.; Sandberg, J.; Roser, T.; Tsoupas, N.

2009-05-04T23:59:59.000Z

179

Fast Molecular Solvation Energetics and Forces Computation  

Science Conference Proceedings (OSTI)

The total free energy of a molecule includes the classical molecular mechanical energy (which is understood as the free energy in vacuum) and the solvation energy, which is caused by the change of the environment of the molecule (solute) from vacuum ... Keywords: error analysis, fast summation, generalized Born, molecular surface

Chandrajit Bajaj; Wenqi Zhao

2009-11-01T23:59:59.000Z

180

FastForward 2.2: FastForward, Version 2.2  

Science Conference Proceedings (OSTI)

The FastForward, Version 2.2 (FastForward 2.2) software provides estimation of electricity forward prices, volatilities, and correlations with fuel prices and loads based on a multi-region structural model of the power system. FastForward 2.2 is a multi-region structural model that forecasts both spot and forward prices for electric power, on an hourly basis. The software can forecast prices for very long time horizons, exceeding 20 years as needed. The forecasting approach is to develop a detailed set o...

2004-12-14T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

How Do I Know? A Guide to the Selection of Personal Protective Equipment for Use in Responding to A Release of Chemical Warfare Agents  

Science Conference Proceedings (OSTI)

An incident involving chemical warfare agents requires a unique hazardous materials (HAZMAT) response. As with an HAZMAT event, federal regulations prescribe that responders must be protected from exposure to the chemical agents. But unlike other HAZMAT events, special considerations govern selection of personal protective equipment (PPE). PPE includes all clothing, respirators and monitoring devices used to respond to a chemical release. PPE can differ depending on whether responders are military or civilian personnel.

Foust, C.B.

1999-05-01T23:59:59.000Z

182

SU?E?T?718: Modeling a Fast Neutron Therapy Beam with a Convolution/superposition Algorithm  

Science Conference Proceedings (OSTI)

Purpose: To determine if a photon convolution/superposition algorithm could be used to model a fast neutron therapy beam in a commercial treatment planning system. Methods: The beam to be modeled was the Clinical Neutron Therapy System (CNTS) fast neutron beam produced by 50 MeV protons on a Be target at the University of Washington(UW) Medical Center. The dose calculation model was that implemented in Pinnacle

A Kalet; M Phillips; G Sandison

2011-01-01T23:59:59.000Z

183

All-sky astrophysical component separation with Fast Independent Component Analysis (FastICA)  

E-Print Network (OSTI)

We present a new, fast, algorithm for the separation of astrophysical components superposed in maps of the sky, based on the fast Independent Component Analysis technique (FastICA). It allows to recover both the spatial pattern and the frequency scalings of the emissions from statistically independent astrophysical processes, present along the line-of-sight, from multi-frequency observations. We apply FastICA to simulated observations of the microwave sky with angular resolution and instrumental noise at the mean nominal levels for the Planck satellite, containing the most important known diffuse signals: the Cosmic Microwave Background (CMB), Galactic synchrotron, dust and free-free emissions. A method for calibrating the reconstructed maps of each component at each frequency has been devised. The spatial pattern of all the components have been recovered on all scales probed by the instrument. In particular, the CMB angular power spectra is recovered at the percent level up to $\\ell_{max}\\simeq 2000$. Freque...

Maino, D; Baccigalupi, C; Perrotta, F; Banday, A J; Bedini, L; Burigana, C; Zotti, G D; Górski, K M; Salerno, E

2001-01-01T23:59:59.000Z

184

Development of a Fast Time-Resolved Aerosol Collector (Fast TRAC...  

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

off-line analyses * Good for cloud microstructures * And plumes Size of new Fast-TRAC Hi def video Folded microscope Xiao-Ying Yu, James Cowin PNNL Future Work * Make it...

185

Fast fall-time ion beam in neutron generators  

Science Conference Proceedings (OSTI)

Ion beam with a fast fall time is useful in building neutron generators for the application of detecting hidden, gamma-shielded SNM using differential die-away (DDA) technique. Typically a fall time of less than 1 {micro}s can't be achieved by just turning off the power to the ion source due to the slow decay of plasma density (partly determined by the fall time of the RF power in the circuit). In this paper, we discuss the method of using an array of mini-apertures (instead of one large aperture beam) such that gating the beamlets can be done with low voltage and a small gap. This geometry minimizes the problem of voltage breakdown as well as reducing the time of flight to produce fast gating. We have designed and fabricated an array of 16 apertures (4 x 4) for a beam extraction experiment. Using a gating voltage of 1400 V and a gap distance of 1 mm, the fall time of extracted ion beam pulses is less than 1 {micro}s at various beam energies ranging between 400 eV to 800 eV. Usually merging an array of beamlets suffers the loss of beam brightness, i.e., emittance growth, but that is not an important issue for neutron source applications.

Ji, Q.; Kwan, J.; Regis, M.; Wu, Y.; Wilde, S.B.; Wallig, J.

2008-08-10T23:59:59.000Z

186

A Fast Test to Diagnose Flu  

SciTech Connect

People with flu-like symptoms who seek treatment at a medical clinic or hospital often must wait several hours before being examined, possibly exposing many people to an infectious virus. If a patient appears to need more than the routine fluids-and-rest prescription, effective diagnosis requires tests that must be sent to a laboratory. Hours or days may pass before results are available to the doctor, who in the meantime must make an educated guess about the patient's illness. The lengthy diagnostic process places a heavy burden on medical laboratories and can result in improper use of antibiotics or a costly hospital stay. A faster testing method may soon be available. An assay developed by a team of Livermore scientists can diagnose influenza and other respiratory viruses in about two hours once a sample has been taken. Unlike other systems that operate this quickly, the new device, called FluIDx (and pronounced ''fluidics''), can differentiate five types of respiratory viruses, including influenza. FluIDx can analyze samples at the point of patient care--in hospital emergency departments and clinics--allowing medical providers to quickly determine how best to treat a patient, saving time and potentially thousands of dollars per patient. The FluIDx project, which is led by Livermore chemist Mary McBride of the Physics and Advanced Technologies Directorate, received funding from the National Institute of Allergy and Infectious Diseases and the Laboratory Directed Research and Development (LDRD) Program. To test the system and make it as useful as possible, the team worked closely with the Emergency Department staff at the University of California (UC) at Davis Medical Center in Sacramento. Flu kills more than 35,000 people every year in the US. The 2003 outbreak of severe acute respiratory syndrome and the ongoing concern about a possible bird flu pandemic show the need for a fast, reliable test that can differentiate seasonal flu from a potentially pandemic influenza. Such a test should also discriminate influenza from pathogens that cause illnesses with flu-like symptoms. When a precise diagnosis is required to treat an adult patient with serious respiratory symptoms, sample cells are usually obtained with a nasal or throat swab and analyzed with one of several laboratory methods. The gold standard test is viral culturing, a highly sensitive method that can identify the specific strain of virus. However, viral culturing is a labor-intensive process and requires 3-10 days to produce results, too long for early intervention. Enzyme and optical immunoassays offer results in 30 minutes, but these methods are less sensitive than viral culturing so they can produce false positives or negatives. They also cannot distinguish the type of virus found. Direct immunofluorescence antibody (DFA) staining is as sensitive as viral culturing. It also can detect multiple respiratory pathogens simultaneously by a process known as multiplexing. However, DFA staining requires expensive equipment, a skilled microscopist, and samples with enough target cells for testing. In addition, the results are ultimately subjective. Another method, called reverse transcriptase-polymerase chain reaction assay, offers sensitivity and specificity comparable to viral culturing and DFA staining. It also produces results in two hours and can rapidly test a large number of samples. The drawback with these tests, however, is that they must be performed in a laboratory. None of them can be used where they are needed most: in the clinic or emergency department where patients are being treated. Livermore's FluIDx diagnostic system, with its instrumentation and multiplexed assays, is designed specifically for point-of-care diagnosis. The fast, easy-to-use system is based on the Autonomous Pathogen Detection System, a homeland security technology developed by LLNL. This R&D 100 Award-winning technology constantly monitors the air to detect airborne bioterrorism agents, such as anthrax. FluIDx is an integrated system designed to p

Hazi, A U

2007-02-12T23:59:59.000Z

187

NREL: Wind Research - New Modularization Framework Transforms FAST Wind  

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

New Modularization Framework Transforms FAST Wind Turbine Modeling Tool New Modularization Framework Transforms FAST Wind Turbine Modeling Tool January 3, 2014 The old and new versions of the FAST wind turbine modeling tool are represented in this illustration by boxes. The earlier version of FAST is represented by three boxes aligned in a column on the left side of the illustration. They contain the words AeroDyn, FAST, and Hydrodyn and represent the three modules that worked together to model aerodynamics, hydrodynamics and servo-elastics. Double ended arrows between the boxes indicate interaction between these modules. A large red arrow pointed from the three boxes to a large rectangle in the middle shows how this earlier software evolved into the new FAST Framework. The large rectangular box in the middle contains the words FAST Driver. Seven smaller boxes to the right of the FAST driver represent the new modules that feed into the driver.

188

Laser-plasma interactions for fast ignition  

E-Print Network (OSTI)

In the electron-driven fast-ignition approach to inertial confinement fusion, petawatt laser pulses are required to generate MeV electrons that deposit several tens of kilojoules in the compressed core of an imploded DT shell. We review recent progress in the understanding of intense laser plasma interactions (LPI) relevant to fast ignition. Increases in computational and modeling capabilities, as well as algorithmic developments have led to enhancement in our ability to perform multi-dimensional particle-in-cell (PIC) simulations of LPI at relevant scales. We discuss the physics of the interaction in terms of laser absorption fraction, the laser-generated electron spectra, divergence, and their temporal evolution. Scaling with irradiation conditions such as laser intensity are considered, as well as the dependence on plasma parameters. Different numerical modeling approaches and configurations are addressed, providing an overview of the modeling capabilities and limitations. In addition, we discuss the compa...

Kemp, A J; Debayle, A; Johzaki, T; Mori, W B; Patel, P K; Sentoku, Y; Silva, L O

2013-01-01T23:59:59.000Z

189

Ultra-fast framing camera tube  

DOE Patents (OSTI)

An electronic framing camera tube features focal plane image dissection and synchronized restoration of the dissected electron line images to form two-dimensional framed images. Ultra-fast framing is performed by first streaking a two-dimensional electron image across a narrow slit, thereby dissecting the two-dimensional electron image into sequential electron line images. The dissected electron line images are then restored into a framed image by a restorer deflector operated synchronously with the dissector deflector. The number of framed images on the tube's viewing screen is equal to the number of dissecting slits in the tube. The distinguishing features of this ultra-fast framing camera tube are the focal plane dissecting slits, and the synchronously-operated restorer deflector which restores the dissected electron line images into a two-dimensional framed image. The framing camera tube can produce image frames having high spatial resolution of optical events in the sub-100 picosecond range.

Kalibjian, Ralph (1051 Batavia Ave., Livermore, CA 94550)

1981-01-01T23:59:59.000Z

190

Fast thermometry for superconducting rf cavity testing  

SciTech Connect

Fast readout of strategically placed low heat capacity thermometry can provide valuable information of Superconducting RF (SRF) cavity performance. Such a system has proven very effective for the development and testing of new cavity designs. Recently, several resistance temperature detectors (RTDs) were installed in key regions of interest on a new 9 cell 3.9 GHz SRF cavity with integrated HOM design at FNAL. A data acquisition system was developed to read out these sensors with enough time and temperature resolution to measure temperature changes on the cavity due to heat generated from multipacting or quenching within power pulses. The design and performance of the fast thermometry system will be discussed along with results from tests of the 9 cell 3.9GHz SRF cavity.

Orris, Darryl; Bellantoni, Leo; Carcagno, Ruben H.; Edwards, Helen; Harms, Elvin Robert; Khabiboulline, Timergali N.; Kotelnikov, Sergey; Makulski, Andrzej; Nehring, Roger; Pischalnikov, Yuriy; /Fermilab

2007-06-01T23:59:59.000Z

191

Electron Generation and Transport in Intense Relativistic Laser-Plasma Interactions Relevant to Fast Ignition ICF  

SciTech Connect

The reentrant cone approach to Fast Ignition, an advanced Inertial Confinement Fusion scheme, remains one of the most attractive because of the potential to efficiently collect and guide the laser light into the cone tip and direct energetic electrons into the high density core of the fuel. However, in the presence of a preformed plasma, the laser energy is largely absorbed before it can reach the cone tip. Full scale fast ignition laser systems are envisioned to have prepulses ranging between 100 mJ to 1 J. A few of the imperative issues facing fast ignition, then, are the conversion efficiency with which the laser light is converted to hot electrons, the subsequent transport characteristics of those electrons, and requirements for maximum allowable prepulse this may put on the laser system. This dissertation examines the laser-to-fast electron conversion efficiency scaling with prepulse for cone-guided fast ignition. Work in developing an extreme ultraviolet imager diagnostic for the temperature measurements of electron-heated targets, as well as the validation of the use of a thin wire for simultaneous determination of electron number density and electron temperature will be discussed.

Ma, T

2010-04-21T23:59:59.000Z

192

Fission energy: The integral fast reactor  

SciTech Connect

The Integral Fast Reactor (IFR) is an innovative reactor concept being developed at Argonne National Laboratory as a such next- generation reactor concept. The IFR concept has a number of specific technical advantages that collectively address the potential difficulties facing the expansion of nuclear power deployment. In particular, the IFR concept can meet all three fundamental requirements needed in a next-generation reactor as discussed below. This document discusses these requirements.

Chang, Yoon I.

1989-01-01T23:59:59.000Z

193

Fast pulsed excitation wiggler or undulator  

DOE Patents (OSTI)

A fast pulsed excitation, electromagnetic undulator or wiggler, employing geometrically alternating substacks of thin laminations of ferromagnetic material, together with a single turn current loop excitation of the composite assembly, of such shape and configuration that intense, spatially alternating, magnetic fields are generated; for use as a pulsed mode undulator or wiggler radiator, for use in a Free Electron Laser (FEL) type radiation source or, for use in an Inverse Free Electron Laser (IFEL) charged particle accelerator.

Van Steenbergen, A.

1989-06-20T23:59:59.000Z

194

Fast pulsed excitation wiggler or undulator  

DOE Patents (OSTI)

A fast pulsed excitation, electromagnetic undulator or wiggler, employing geometrically alternating substacks of thin laminations of ferromagnetic material, together with a single turn current loop excitation of the composite assembly, of such shape and configuration that intense, spatially alternating, magnetic fields are generated; for use as a pulsed mode undulator or wiggler radiator, for use in a Free Electron Laser (FEL) type radiation source or, for use in an Inverse Free Electron Laser (IFEL) charged particle accelerator.

van Steenbergen, Arie (Shoreham, NY)

1990-01-01T23:59:59.000Z

195

PSI # Date Time Location Incident Description Disposition 4280 7/1/2011 12:02 Kentucky Hall Fire Alarm Activation Activation due to burnt food BFD responded  

E-Print Network (OSTI)

Theatre Theft Copper Wiring Sheriff responded 4293 7/14/2011 16:59 Campus Vehicle Immobilized Unpaid Alarm Activation Activation due to burnt food BFD responded 4281 7/2/2011 9:30 James Hall Theft Glade Property Damage Hand rail FM notified 4285 7/6/2011 10:10 Draper Building Theft Sony DVD

Baltisberger, Jay H.

196

Fine Structure of Cloud Droplet Concentration as Seen from the Fast-FSSP Measurements. Part I: Method of Analysis and Preliminary Results  

Science Conference Proceedings (OSTI)

A statistical analysis of a series of droplet arrival times measured by the Fast Forward-Scattering Spectrometer Probe (FSSP) during aircraft flights in cumulus clouds was conducted. The main purpose of the analysis was to determine whether ...

M. Pinsky; A. P. Khain

2001-08-01T23:59:59.000Z

197

Delayed neutron measurements from fast fission of actinide waste isotopes  

E-Print Network (OSTI)

A study was performed to determine the delayed neutron emission properties from fast fission of several actinide waste isotopes. The specific isotopes evaluated were U-235, Np-237, and Am-243. A calculational technique based on the microscopic method was used to predict initial guesses for the delayed neutron parameters (group decay constants and yields). Based on these calculations, an alternate "seven-group" structure, in contrast to the traditional "six-group" structure used previously, was suggested which would yield a superior fit to the measured data. A series of measurements were performed to test the hypothesis suggested by this alternate group structure. Using a set of highly purified actinide samples (provided by Oak Ridge National Laboratory), the delayed neutron emission decay constants and yields for six groups of the "seven-group" structure were measured for U-235, Np-237, and Am-243. These experiments were performed using the Texas A&M University Nuclear Science Center Reactor, a quick pneumatic transfer system, an integrated computer control and counting system, and a specially designed in-core irradiation device. The values for the total delayed neutron yield (per 100 fissions) from fast-neutron induced fission of U-235, Np237, and Am-243 were determined to be 1.67 ?0.08, 1.14 ?0.07, 0.86 ?0.05, respectively. The newly measured values were compared with other values recommended by Keepin et al., Waldo et al., Saleh et al., and Brady and England. Good agreement was found in all cases. The "seven-group" structure was shown to yield a superior fit to the measured data, as well as, provide a more direct correlation between delayed neutron groups and their associated delayed neutron precursors.

Charlton, William S.

1997-01-01T23:59:59.000Z

198

Customer Strategies for Responding to Day-Ahead Market HourlyElectricity Pricing  

Science Conference Proceedings (OSTI)

Real-time pricing (RTP) has been advocated as an economically efficient means to send price signals to customers to promote demand response (DR) (Borenstein 2002, Borenstein 2005, Ruff 2002). However, limited information exists that can be used to judge how effectively RTP actually induces DR, particularly in the context of restructured electricity markets. This report describes the second phase of a study of how large, non-residential customers' adapted to default-service day-ahead hourly pricing. The customers are located in upstate New York and served under Niagara Mohawk, A National Grid Company (NMPC)'s SC-3A rate class. The SC-3A tariff is a type of RTP that provides firm, day-ahead notice of hourly varying prices indexed to New York Independent System Operator (NYISO) day-ahead market prices. The study was funded by the California Energy Commission (CEC)'s PIER program through the Demand Response Research Center (DRRC). NMPC's is the first and longest-running default-service RTP tariff implemented in the context of retail competition. The mix of NMPC's large customers exposed to day-ahead hourly prices is roughly 30% industrial, 25% commercial and 45% institutional. They have faced periods of high prices during the study period (2000-2004), thereby providing an opportunity to assess their response to volatile hourly prices. The nature of the SC-3A default service attracted competitive retailers offering a wide array of pricing and hedging options, and customers could also participate in demand response programs implemented by NYISO. The first phase of this study examined SC-3A customers' satisfaction, hedging choices and price response through in-depth customer market research and a Constant Elasticity of Substitution (CES) demand model (Goldman et al. 2004). This second phase was undertaken to answer questions that remained unresolved and to quantify price response to a higher level of granularity. We accomplished these objectives with a second customer survey and interview effort, which resulted in a higher, 76% response rate, and the adoption of the more flexible Generalized Leontief (GL) demand model, which allows us to analyze customer response under a range of conditions (e.g. at different nominal prices) and to determine the distribution of individual customers' response.

Goldman, Chuck; Hopper, Nicole; Bharvirkar, Ranjit; Neenan,Bernie; Boisvert, Dick; Cappers, Peter; Pratt, Donna; Butkins, Kim

2005-08-25T23:59:59.000Z

199

FastTrack Generic Data Link 1.0  

Science Conference Proceedings (OSTI)

The FastTrack Generic Data Link version 1.0 software system utilizes EPRI's Data Transfer Tool to allow users to transfer waste processing data from plant or corporate databases into a holding database that can be queried, on demand, by FastTrack users over a corporate intranet. This software system consists of four required software elements: the Data Transfer Tool 3.1, FastTrack 2.0 (provided separately as EPRI product 1009563), the FastTrack Data Link databases, and the FastTrack Data Link web service...

2005-06-02T23:59:59.000Z

200

All-sky astrophysical component separation with Fast Independent Component Analysis (FastICA)  

E-Print Network (OSTI)

We present a new, fast, algorithm for the separation of astrophysical components superposed in maps of the sky, based on the fast Independent Component Analysis technique (FastICA). It allows to recover both the spatial pattern and the frequency scalings of the emissions from statistically independent astrophysical processes, present along the line-of-sight, from multi-frequency observations. We apply FastICA to simulated observations of the microwave sky with angular resolution and instrumental noise at the mean nominal levels for the Planck satellite, containing the most important known diffuse signals: the Cosmic Microwave Background (CMB), Galactic synchrotron, dust and free-free emissions. A method for calibrating the reconstructed maps of each component at each frequency has been devised. The spatial pattern of all the components have been recovered on all scales probed by the instrument. In particular, the CMB angular power spectra is recovered at the percent level up to $\\ell_{max}\\simeq 2000$. Frequency scalings and normalization have been recovered with better than percent precision for all the components at frequencies and in sky regions where their signal-to-noise ratio exceeds 1.5; the error increases at ten percent level for signal-to-noise ratios about 1. Runs have been performed on a Pentium III 600 MHz computer; FastICA typically took a time of the order of 10 minutes for all-sky simulations with 3.5 arcminutes pixel size. We conclude that FastICA is an extremly promising technique for analyzing the maps that will be obtained by the forthcoming high resolution CMB experiments.

D. Maino; A. Farusi; C. Baccigalupi; F. Perrotta; A. J. Banday; L. Bedini; C. Burigana; G. De Zotti; K. M. Gorski; E. Salerno

2001-08-22T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

The Integral Fast Reactor (IFR) concept  

SciTech Connect

In addition to maintaining the viability of its present commercial nuclear technology, a principal challenge in the US in the 1990s and beyond will be to regain and maintain a position among the world leadership in advanced reactor research and development. In this paper we'll discuss factors which we believe should today provide the rationale and focus for advanced reactor R and D, and we will then review the status of the major US effort, the Integral Fast Reactor (IFR) program.

Till, C.E.; Chang, Y.I.

1989-01-01T23:59:59.000Z

202

Fast-acting nuclear reactor control device  

DOE Patents (OSTI)

A fast-acting nuclear reactor control device for moving and positioning a fety control rod to desired positions within the core of the reactor between a run position in which the safety control rod is outside the reactor core, and a shutdown position in which the rod is fully inserted in the reactor core. The device employs a hydraulic pump/motor, an electric gear motor, and solenoid valve to drive the safety control rod into the reactor core through the entire stroke of the safety control rod. An overrunning clutch allows the safety control rod to freely travel toward a safe position in the event of a partial drive system failure.

Kotlyar, Oleg M. (Idaho Falls, ID); West, Phillip B. (Idaho Falls, ID)

1993-01-01T23:59:59.000Z

203

Chemical analysis of biomass fast pyrolysis oils  

DOE Green Energy (OSTI)

This paper reviews the development of the field of chemical analysis of biomass fast pyrolysis oils. The techniques applied to pyrolysis oil analysis are reviewed including proximate and ultimate analysis, water (moisture) analysis, and chemical component analysis by various forms of chromatography, solvent separations, and spectrophotometric analyses, like infrared and ultraviolet. Advanced analytical techniques such as nuclear magnetic resonance and molecular beam -- mass spectrometry are also discussed. This paper reviews and compares the methods and the results of the analyses. The advantages and shortcomings of the various methods applied are identified. Comparisons derived from the IEA Round Robin are incorporated.

Elliott, D.C.

1994-09-01T23:59:59.000Z

204

Fast-neutron solid-state dosimeter  

DOE Patents (OSTI)

This patent relates to an improved fast-neutron solid-state dosimeter that does not require separation of materials before it can be read out, that utilizes materials that do not melt or otherwise degrade at about 300$sup 0$C readout temperature, that provides a more efficient dosimeter, and that can be reused. The dosimeters are fabricated by intimately mixing a TL material, such as CaSO$sub 4$:Dy, with a powdered polyphenyl, such as p-sexiphenyl, and hot- pressing the mixture to form pellets, followed by out-gassing in a vacuum furnace at 150$sup 0$C prior to first use dosimeters. (auth)

Kecker, K.H.; Haywood, F.F.; Perdue, P.T.; Thorngate, J.H.

1975-07-22T23:59:59.000Z

205

An explosively driven, fast shock tube  

SciTech Connect

A simple, cylindrically configured fast shock tube (FST) has been employed as a tool to investigate the hydrodynamics of plate drive under a very high impulse-loading condition. The shock tube has a high-explosive outer shell and a low-density foam core. The implosion produces a well-defined Mach disk that is then subsequently used to drive a metallic plate. A thin stainless steel (SS) plate has been successfully launched to 9 km/s with this device. The experimental results from the study of material flow will be presented and compared with numerical calculation. Various interesting measurement techniques will also be discussed.

Tan, T.H.; Marsh, S.

1992-03-01T23:59:59.000Z

206

An explosively driven, fast shock tube  

SciTech Connect

A simple, cylindrically configured fast shock tube (FST) has been employed as a tool to investigate the hydrodynamics of plate drive under a very high impulse-loading condition. The shock tube has a high-explosive outer shell and a low-density foam core. The implosion produces a well-defined Mach disk that is then subsequently used to drive a metallic plate. A thin stainless steel (SS) plate has been successfully launched to 9 km/s with this device. The experimental results from the study of material flow will be presented and compared with numerical calculation. Various interesting measurement techniques will also be discussed.

Tan, T.H.; Marsh, S.

1992-01-01T23:59:59.000Z

207

Fast-acting valve and uses thereof  

SciTech Connect

A very fast acting valve capable of producing a very well-defined plug of gas suitable for filling a theta pinch vacuum vessel is given. The valve requires no springs, instead being stopped mainly by a nonlinear force. Thus, the valve is not subject to bouncing; and the ratio of the size of the valve housing to the size of the valve stem is smaller than it would be if springs were needed to stop the valve stem. Furthermore, the valve can be used for thousands of valve firings with no apparent valve damage.

Meyer, James A. (Espanola, NM)

1982-01-01T23:59:59.000Z

208

Bi-Directional Fast Charging Study Report  

DOE Green Energy (OSTI)

This report details the hardware and software infrastructure needed to demonstrate the possibility of utilizing battery power in plug-in hybrid electric vehicles (PHEVs) and electric vehicles (EVs) with a bi directional fast charger to support/offset peak building loads. This document fulfills deliverable requirements for Tasks 1.2.1.2, 1.2.1.3, and 1.2.1.4 of Statement of Work (SOW) No.5799 for Electric Transportation Engineering Corporation, now ECOtality North America (NA) support for the Idaho National Laboratory (INL).

Tyler Gray

2012-02-01T23:59:59.000Z

209

Fast Wave Polarization, Charge Horizons and the Time Evolution of Force-Free Magnetospheres  

E-Print Network (OSTI)

Numerical simulations of force-free, degenerate (ffde)pulsar and black hole magnetospheres are often based on 1-D characteristics. In particular, the plasma wave polarizations that can be propagated along the 1-D characteristics determine the time evolution of the entire system. There are two sets of characteristics,corresponding to the fast and Alfven modes. The fast wave is generally considered to be a transverse light wave, however recently it has been claimed that light-like fast waves can transport a longitudinal electric polarization, $E_{\\parallel}$, at the speed of light. The implication is quite profound if true, namely that the wrong information has been propagated along the fast characteristics in all previous simulations of force-free magnetospheres. It is shown in this Letter that the light-like fast waves must be transverse and previous simulations are valid. This result is demonstrated by means of a fundamental physical principle (associated with the fact that particles cannot flow faster than the speed of light), there exists a charge horizon in ffde magnetospheres. It is shown that the Alfven critical surfaces in a ffde magnetosphere are both charge and particle horizons, i.e. one way membranes that do not permit traversal by charges nor particles anti-directed to the bulk flow. Since the propagation of a discontinuous change in $E_{\\parallel}$ requires a physical surface charge on the wave-face, it is also a one-way membrane for longitudinally polarized waves. Besides justifying previous ffde simulations this result also invalidates previous claims that fast waves can radiate $E_{\\parallel}$ from the event horizon of a black hole.

Brian Punsly

2004-07-16T23:59:59.000Z

210

The Effect of Fast Food Restaurants on Obesity  

E-Print Network (OSTI)

Abstract. We investigate the health consequences of changes in the supply of fast food using the exact geographical location of fast food restaurants. Specifically, we ask how the supply of fast food affects the obesity rates of 3 million school children and the weight gain of over 1 million pregnant women. We find that among 9 th grade children, a fast food restaurant within a tenth of a mile of a school is associated with at least a 5.2 percent increase in obesity rates. There is no discernable effect at.25 miles and at.5 miles. Among pregnant women, models with mother fixed effects indicate that a fast food restaurant within a half mile of her residence results in a 2.5 percent increase in the probability of gaining over 20 kilos. The effect is larger, but less precisely estimated at.1 miles. In contrast, the presence of non-fast food restaurants is uncorrelated with obesity and weight gain. Moreover, proximity to future fast food restaurants is uncorrelated with current obesity and weight gain, conditional on current proximity to fast food. The implied effects of fast-food on caloric intake are at least one order of magnitude smaller for mothers, which suggests that they are less constrained by travel costs than school children. Our results imply that policies restricting access to fast food near schools could

Janet Currie

2009-01-01T23:59:59.000Z

211

Fast Shower Simulation in the ATLAS Calorimeter  

SciTech Connect

The time to simulate pp collisions in the ATLAS detector is largely dominated by the showering of electromagnetic particles in the heavy parts of the detector, especially the electromagnetic barrel and endcap calorimeters. Two procedures have been developed to accelerate the processing time of electromagnetic particles in these regions: (1) a fast shower parameterisation and (2) a frozen shower library. Both work by generating the response of the calorimeter to electrons and positrons with Geant 4, and then reintroduce the response into the simulation at runtime. In the fast shower parameterisation technique, a parameterization is tuned to single electrons and used later by simulation. In the frozen shower technique, actual showers from low-energy particles are used in the simulation. Full Geant 4 simulation is used to develop showers down to {approx} 1 GeV, at which point the shower is terminated by substituting a frozen shower. Judicious use of both techniques over the entire electromagnetic portion of the ATLAS calorimeter produces an important improvement of CPU time. We discuss the algorithms and their performance in this paper.

Barberio, E.; /Melbourne U.; Boudreau, J.; /Pittsburgh U.; Butler, B.; /SLAC; Cheung, S.L.; /Toronto U.; Dell' Acqua, A.; /CERN; Di Simone, A.; /CERN; Ehrenfeld, W.; /Hamburg U. /DESY; Gallas, M.V.; /CERN; Glazov, A.; /DESY; Marshall, Z.; /Caltech /Nevis Labs, Columbia U.; Mueller, J.; /Pittsburgh U.; Placakyte, R.; /DESY; Rimoldi, A.; /Pavia U. /INFN, Pavia; Savard, P.; /Toronto U.; Tsulaia, V.; /Pittsburgh U.; Waugh, A.; /Sydney U.; Young, C.C.; /SLAC

2011-11-08T23:59:59.000Z

212

PLUTONIUM METALLIC FUELS FOR FAST REACTORS  

Science Conference Proceedings (OSTI)

Early interest in metallic plutonium fuels for fast reactors led to much research on plutonium alloy systems including binary solid solutions with the addition of aluminum, gallium, or zirconium and low-melting eutectic alloys with iron and nickel or cobalt. There was also interest in ternaries of these elements with plutonium and cerium. The solid solution and eutectic alloys have most unusual properties, including negative thermal expansion in some solid-solution alloys and the highest viscosity known for liquid metals in the Pu-Fe system. Although metallic fuels have many potential advantages over ceramic fuels, the early attempts were unsuccessful because these fuels suffered from high swelling rates during burn up and high smearing densities. The liquid metal fuels experienced excessive corrosion. Subsequent work on higher-melting U-PuZr metallic fuels was much more promising. In light of the recent rebirth of interest in fast reactors, we review some of the key properties of the early fuels and discuss the challenges presented by the ternary alloys.

STAN, MARIUS [Los Alamos National Laboratory; HECKER, SIEGFRIED S. [Los Alamos National Laboratory

2007-02-07T23:59:59.000Z

213

Fast Switching Ferroelectric Materials for Accelerator Applications  

SciTech Connect

Fast switching (<10 nsec) measurement results on the recently developed BST(M) (barium strontium titanium oxide composition with magnesium-based additions) ferroelectric materials are presented. These materials can be used as the basis for new advanced technology components suitable for high-gradient accelerators. A ferroelectric ceramic has an electric field-dependent dielectric permittivity that can be altered by applying a bias voltage. Ferroelectric materials offer significant benefits for linear collider applications, in particular, for switching and control elements where a very short response time of <10 nsec is required. The measurement results presented here show that the new BST(M) ceramic exhibits a high tunability factor: a bias field of 40-50 kV/cm reduces the permittivity by a factor of 1.3-1.5. The recently developed technology of gold biasing contact deposition on large diameter (110 cm) thin wall ferroelectric rings allowed {approx}few nsec switching times in witness sample experiments. The ferroelectric rings can be used at high pulsed power (tens of megawatts) for X-band components as well as at high average power in the range of a few kilowatts for the L-band phase-shifter, under development for optimization of the ILC rf coupling. Accelerator applications include fast active X-band and Ka-band high-power ferroelectric switches, high-power X-band and L-band phase shifters, and tunable dielectric-loaded accelerating structures.

Kanareykin, A.; Schoessow, P. [Euclid Techlabs LLC, Solon, OH 44139 (United States); Nenasheva, E. [Ceramics Co. Ltd, St.Petersburg 194223 (Russian Federation); Yakovlev, V. [Omega-P Inc., New Haven, CT 06511 (United States); Dedyk, A.; Karmanenko, S.; Kozyrev, A.; Osadchy, V.; Kosmin, D.; Semenov, A. [St. Petersburg Electrical Engineering University, St. Petersburg 197376 (Russian Federation)

2006-11-27T23:59:59.000Z

214

Flexible Conversion Ratio Fast Reactor Systems Evaluation  

Science Conference Proceedings (OSTI)

Conceptual designs of lead-cooled and liquid salt-cooled fast flexible conversion ratio reactors were developed. Both concepts have cores reated at 2400 MWt placed in a large-pool-type vessel with dual-free level, which also contains four intermediate heat exchanges coupling a primary coolant to a compact and efficient supercritical CO2 Brayton cycle power conversion system. Decay heat is removed passively using an enhanced Reactor Vessel Auxiliary Cooling System and a Passive Secondary Auxiliary Cooling System. The most important findings were that (1) it is feasible to design the lead-cooled and salt-cooled reactor with the flexible conversion ratio (CR) in the range of CR=0 and CR=1 n a manner that achieves inherent reactor shutdown in unprotected accidents, (2) the salt-cooled reactor requires Lithium thermal Expansion Modules to overcme the inherent salt coolant's large positive coolant temperature reactivity coefficient, (3) the preferable salt for fast spectrum high power density cores is NaCl-Kcl-MgCl2 as opposed to fluoride salts due to its better themal-hydraulic and neutronic characteristics, and (4) both reactor, but attain power density 3 times smaller than that of the sodium-cooled reactor.

Neil Todreas; Pavel Hejzlar

2008-06-30T23:59:59.000Z

215

The Fast Track to Fusion Power  

Science Conference Proceedings (OSTI)

World energy use is predicted to double in the next 40 years. Today, 80% is provided by burning fossil fuels, but this is not sustainable indefinitely because (i) it is driving climate change, and (ii) fossil fuels will eventually be exhausted (starting with oil). The resulting potential energy crisis requires increased investment in energy research and development (which is currently very small on the scale of the $3 trillion p.a. energy market, and falling). The wide portfolio of energy work that should be supported must include fusion, which is one of very few options that are capable in principle of supplying a large fraction of need in an environmentally responsible manner. The case for fusion has been strengthened by recent advances in plasma physics and fusion technology and by studies of fusion power plants that address safety and cost issues. The big questions are, 'How can we deliver fusion power as fast as possible?' and 'How long is it likely to take?' I will review progress in fusion, and argue for a focused fast-track program that could deliver a working prototype power station in less than 30 years.

Smith, Chris Llewellyn (UKAEA, Culham)

2005-04-28T23:59:59.000Z

216

FastAero – A Precorrected FFT – Fast Multipole Tree Steady and Unsteady Potential Flow Solver  

E-Print Network (OSTI)

In this paper a precorrected FFT-Fast Multipole Tree (pFFT-FMT) method for solving the potential flow around arbitrary three dimensional bodies is presented. The method takes advantage of the efficiency of the pFFT and FMT ...

Willis, David

217

MPACT Fast Neutron Multiplicity System Design Concepts  

Science Conference Proceedings (OSTI)

This report documents work performed by Idaho National Laboratory and the University of Michigan in fiscal year (FY) 2012 to examine design parameters related to the use of fast-neutron multiplicity counting for assaying plutonium for materials protection, accountancy, and control purposes. This project seeks to develop a new type of neutron-measurement-based plutonium assay instrument suited for assaying advanced fuel cycle materials. Some current-concept advanced fuels contain high concentrations of plutonium; some of these concept fuels also contain other fissionable actinides besides plutonium. Because of these attributes the neutron emission rates of these new fuels may be much higher, and more difficult to interpret, than measurements made of plutonium-only materials. Fast neutron multiplicity analysis is one approach for assaying these advanced nuclear fuels. Studies have been performed to assess the conceptual performance capabilities of a fast-neutron multiplicity counter for assaying plutonium. Comparisons have been made to evaluate the potential improvements and benefits of fast-neutron multiplicity analyses versus traditional thermal-neutron counting systems. Fast-neutron instrumentation, using for example an array of liquid scintillators such as EJ-309, have the potential to either a) significantly reduce assay measurement times versus traditional approaches, for comparable measurement precision values, b) significantly improve assay precision values, for measurement durations comparable to current-generation technology, or c) moderating improve both measurement precision and measurement durations versus current-generation technology. Using the MCNPX-PoliMi Monte Carlo simulation code, studies have been performed to assess the doubles-detection efficiency for a variety of counter layouts of cylindrical liquid scintillator detector cells over one, two, and three rows. Ignoring other considerations, the best detector design is the one with the most detecting volume. However, operational limitations guide a) the maximum acceptable size of each detector cell (due to PSD performance and maximum-acceptable per-channel data throughput rates, limited by pulse pile-up and the processing rate of the electronics components of the system) and b) the affordability of a system due to the number of total channels of data to be collected and processed. As a first estimate, it appears that a system comprised of two rows of detectors 5" Ø ? 3" would yield a working prototype system with excellent performance capabilities for assaying Pu-containing items and capable of handling high signal rates likely when measuring items with Pu and other actinides. However, it is still likely that gamma-ray shielding will be needed to reduce the total signal rate in the detectors. As a first step prior to working with these larger-sized detectors, it may be practical to perform scoping studies using small detectors, such as already-on-hand 3" Ø ? 3" detectors.

D. L. Chichester; S. A. Pozzi; J. L. Dolan; M. T. Kinlaw; A. C. Kaplan; M. Flaska; A. Enqvist; J. T. Johnsom; S. M. Watson

2012-10-01T23:59:59.000Z

218

An Empirical Investigation of the Determinants of Asymmetric Pricing  

E-Print Network (OSTI)

and worldwide slowdown of production. A primary concern, given the lengthy downward trend, is that the priceAn Empirical Investigation of the Determinants of Asymmetric Pricing Marc Remer August 2, 2010 Abstract This paper empirically investigates the cause of asymmetric pricing: retail prices responding

Niebur, Ernst

219

Behavior of actinides in the Integral Fast Reactor fuel cycle  

SciTech Connect

The Integral Fast Reactor (IFR) under development by Argonne National Laboratory uses metallic fuels instead of ceramics. This allows electrorefining of spent fuels and presents opportunities for recycling minor actinide elements. Four minor actinides ({sup 237}Np, {sup 240}Pu, {sup 241}Am, and {sup 243}Am) determine the waste storage requirements of spent fuel from all types of fission reactors. These nuclides behave the same as uranium and other plutonium isotopes in electrorefining, so they can be recycled back to the reactor without elaborate chemical processing. An experiment has been designed to demonstrate the effectiveness of the high-energy neutron spectra of the IFR in consuming these four nuclides and plutonium. Eighteen sets of seven actinide and five light metal targets have been selected for ten day exposure in the Experimental Breeder Reactor-2 which serves as a prototype of the IFR. Post-irradiation analyses of the exposed targets by gamma, alpha, and mass spectroscopy are used to determine nuclear reaction-rates and neutron spectra. These experimental data increase the authors` confidence in their ability to predict reaction rates in candidate IFR designs using a variety of neutron transport and diffusion programs.

Courtney, J.C. [Louisiana State Univ., Baton Rouge, LA (United States). Nuclear Science Center; Lineberry, M.J. [Argonne National Lab., Idaho Falls, ID (United States). Technology Development Div.

1994-06-01T23:59:59.000Z

220

First Responder News  

Science Conference Proceedings (OSTI)

... packages and powders have triggered more than 30,000 responses by US law ... Emergency Links: NIST Identifies 'Sweet Spot' for Radios in Tunnels ...

2010-05-24T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

WORKSHEET AND RESPONDENT QUESTIONS  

Gasoline and Diesel Fuel Update (EIA)

D1 CAPGEN8 Does this building have the ability to generate electricity, including for emergency backup? 1. Yes 2. No D4 D1 D2 D3 This document is a paper representation of the 2003...

222

MEMORANDUM FOR DISTRIBUTION - Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events  

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

September 16, 2011 September 16, 2011 MEMORANDUM FOR DISTRIBUTION FROM: SUBJECT: DANIEL B. PONEMA Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Following the March 2011 accident at the Fukushima Daiichi nuclear power plant, the Department of Energy (DOE) took several actions to review the safety of its nuclear facilities. These actions focused on learning how DOE can better prepare to manage potential beyond design basis events. A summary of these actions and the resulting insights, and recommended opportunities and actions to improve nuclear safety at DOE> are included in the attached report. I have directed the Office of Health, Safety and Security (HSS) to work with DOE's Nuclear Safety and Security Coordinating Council, and the Program and Field Offices of

223

MEMORANDUM FOR DISTRIBUTION - Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events  

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

September 16, 2011 September 16, 2011 MEMORANDUM FOR DISTRIBUTION FROM: SUBJECT: DANIEL B. PONEMA Report on Review of Requirements and Capabilities for Analyzing and Responding to Beyond Design Basis Events Following the March 2011 accident at the Fukushima Daiichi nuclear power plant, the Department of Energy (DOE) took several actions to review the safety of its nuclear facilities. These actions focused on learning how DOE can better prepare to manage potential beyond design basis events. A summary of these actions and the resulting insights, and recommended opportunities and actions to improve nuclear safety at DOE> are included in the attached report. I have directed the Office of Health, Safety and Security (HSS) to work with DOE's Nuclear Safety and Security Coordinating Council, and the Program and Field Offices of

224

Building public trust: Actions to respond to the report of the Advisory Committee on human radiation experiments  

Science Conference Proceedings (OSTI)

Democratic government requires trust: people need to know and believe that the government is telling the truth. Without information about what the government is doing and why, citizens cannot exercise democratic control over government institutions. During his first year in office, President Clinton became concerned about reports that the government had conducted unethical secret human radiation experiments during the Cold War. To address this issue, in January 1994, President Clinton established the Advisory Committee on Human Radiation Experiments (ACHRE), chaired by bioethicist Dr. Ruth Faden of Johns Hopkins University. The President also directed all Federal agencies to search for records related to human subjects radiation research and provide them to the Advisory Committee. This report presents the Administration`s actions to respond to the ACHRE`s findings and recommendations.

NONE

1997-03-01T23:59:59.000Z

225

Quantization effects and stabilization of the fast-Kalman algorithm  

Science Conference Proceedings (OSTI)

The exact and actual cause of the failure of the fast-Kalman algorithm due to the generation and propagation of finite-precision or quantization error is presented. It is demonstrated that out of all the formulas that constitute this fast Recursive Least ... Keywords: Kalman filtering, adaptive algorithms, finite-precision error in RLS algorithms, quantization error in fast-Kalman algorithm, recursive least squares filtering

Constantin Papaodysseus; Constantin Alexiou; George Roussopoulos; Athanasios Panagopoulos

2001-01-01T23:59:59.000Z

226

New Modularization Framework for the FAST Wind Turbine CAE Tool: Preprint  

SciTech Connect

NREL has recently put considerable effort into improving the overall modularity of its FAST wind turbine aero-hydro-servo-elastic tool to (1) improve the ability to read, implement, and maintain source code; (2) increase module sharing and shared code development across the wind community; (3) improve numerical performance and robustness; and (4) greatly enhance flexibility and expandability to enable further developments of functionality without the need to recode established modules. The new FAST modularization framework supports module-independent inputs, outputs, states, and parameters; states in continuous-time, discrete-time, and in constraint form; loose and tight coupling; independent time and spatial discretizations; time marching, operating-point determination, and linearization; data encapsulation; dynamic allocation; and save/retrieve capability. This paper explains the features of the new FAST modularization framework, as well as the concepts and mathematical background needed to understand and apply it correctly. It is envisioned that the new modularization framework will transform FAST into a powerful, robust, and flexible wind turbine modeling tool with a large number of developers and a range of modeling fidelities across the aerodynamic, hydrodynamic, servo-dynamic, and structural-dynamic components.

Jonkman, J.

2013-01-01T23:59:59.000Z

227

Fast-Charging Demonstration at Buffalo Rock Bottling Company  

Science Conference Proceedings (OSTI)

A six-month field study has demonstrated successful use of fast-charging technology on forklifts in a high-utilization, 24-hour, three-shift operation.

1999-10-02T23:59:59.000Z

228

Ultra-Fast Calorimetry for Studies of Crystallization in ...  

Science Conference Proceedings (OSTI)

Presentation Title, Ultra-Fast Calorimetry for Studies of Crystallization in Chalcogenides for Phase-Change Memory. Author(s), A. L. Greer. On-Site Speaker ...

229

Insanely Fast Microprocessor Shop - Vulnerability Assessment Team - Nuclear  

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

Insanely Fast Microprocessor Shop Insanely Fast Microprocessor Shop VAT Projects Introducing the VAT Adversarial Vulnerability Assessments Safety Tags & Product Counterfeiting Election Security Spoofing GPS Defeating Existing Tamper-Indicating Seals Specialty Field Tools & Sampling Tools Insider Threat Mitigation Drug Testing Security Microprocessor Prototypes The Journal of Physical Security Vulnerability Assessments Vulnerability Assessments Insanely Fast µProcessor Shop Insanely Fast µProcessor Shop Seals About Seals Applications of Seals Common Myths about Tamper Indicating Seals Definitions Findings and Lessons Learned New Seals Types of Seals Seals References Selected VAT Papers Selected VAT Papers Selected Invited Talks Self-Assessment Survey Security Maxims Devil's Dictionary of Security Terms

230

Dominican Republic-Fast-Track Development of Transformative  

Open Energy Info (EERE)

Dominican Republic-Fast-Track Development of Transformative Dominican Republic-Fast-Track Development of Transformative Climate-Compatible Development Plans and Building of Regional and Local Capacities Jump to: navigation, search Logo: Dominican Republic-Fast-Track Development of Transformative Climate-Compatible Development Plans and Building of Regional and Local Capacities Name Dominican Republic-Fast-Track Development of Transformative Climate-Compatible Development Plans and Building of Regional and Local Capacities Agency/Company /Organization Coalition for Rainforest Nations Focus Area Economic Development Topics Low emission development planning, Policies/deployment programs Resource Type Guide/manual, Presentation Website http://www.rainforestcoalition Country Dominican Republic UN Region Caribbean

231

Dielectric liquid ionization chambers for detecting fast neutrons  

E-Print Network (OSTI)

Three ionization chambers with different geometries have been constructed and filled with dielectric liquids for detection of fast neutrons. The three dielectric liquids studied were Tetramethylsilane (TMS), Tetramethylpentane ...

Boyd, Erin M

2008-01-01T23:59:59.000Z

232

Control rod assembly for liquid metal fast breeder reactors  

SciTech Connect

This standard establishes the requirements for fabrication, testing, and inspection of control rod assemblies for use in liquid metal fast breeder reactors.

1978-09-08T23:59:59.000Z

233

Fast Magnetic Reconnection: Bridging Laboratory and Space Plasma...  

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

include sawtooth crashes in tokamaks, substorms in the Earth's Magnetosphere, eruptive solar flares, and more recent- ly, fast reconnection in laser-produced high energy density...

234

"Fast Magnetic Reconnection: Bridging Laboratory and Space Plasma...  

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

include sawtooth crashes in tokamaks, substorms in the Earth's Magnetosphere, eruptive solar flares, and more recent- ly, fast reconnection in laser-produced high energy density...

235

Fast Local Search for the Maximum Independent Set Problem  

E-Print Network (OSTI)

Jan 29, 2008 ... Fast Local Search for the Maximum Independent Set Problem. Diogo V. Andrade (diogo ***at*** google.com) Mauricio G. C. Resende (mgcr ...

236

HIGH-SPEED IMAGER FOR FAST, TRANSIENT EVENTS AT NIF  

Facility. HIGH-SPEED IMAGER . FOR FAST, TRANSIENT ... GATOR can convert x rays and other types of radiation to coherent optical radiation, which can be transported and

237

Fast magnetosonic wave propagation and absorption in Tokamaks  

DOE Green Energy (OSTI)

Fast magnetostatic wave propagation and absorption in a tokamak model consisting of an axially symmetric cylindrical plasma column with a radially varying density profile is considered.

Phillips, C.K.; Perkins, F.W.; Hwang, D.Q.

1985-07-01T23:59:59.000Z

238

Advanced Lithium Ion Battery Materials for Fast Charging and ...  

Advanced Lithium Ion Battery Materials for Fast Charging and Improved Safety Technology Summary ... a great low cost substitute for cobalt, were

239

Recoverable Class Loaders for a Fast Restart of Java Applications  

Science Conference Proceedings (OSTI)

Nov 8, 2008 ... able a fast start-up and recovery of Java applications. This is achieved by snapshooting the static state of Java applications namely the class ...

240

Mechanical Testing of Core Fast Reactor Materials for the Advanced ...  

Science Conference Proceedings (OSTI)

To achieve this goal, the core fast reactor materials (cladding and duct) must be ... in situ Mechanical Test Methods in the US Fusion Reactor Materials Program.

Note: This page contains sample records for the topic "determination fast responding" 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

Controlling biomass properties for optimizing fast pyrolysis products.  

E-Print Network (OSTI)

??The energy future of the United States is likely to include a large number of traditional and alternative energy sources and technologies. Fast pyrolysis has… (more)

Jeffrey, Brandon

2013-01-01T23:59:59.000Z

242

Understanding the product distribution from biomass fast pyrolysis.  

E-Print Network (OSTI)

??Fast pyrolysis of biomass is an attractive route to transform solid biomass into a liquid bio-oil, which has been envisioned as a renewable substitute for… (more)

Patwardhan, Pushkaraj Ramchandra

2010-01-01T23:59:59.000Z

243

Argonne fast-reactor pioneer receives international prize  

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

Argonne fast-reactor pioneer receives international prize Director's Welcome Organization Achievements Highlights Fact Sheets, Brochures & Other Documents Multimedia Library About...

244

Pulse Shape Discrimination for a Fast Neutron Detector  

Science Conference Proceedings (OSTI)

... as well as security applications such as detection of contraband fissile materials. Fast neutrons deposit energy in the scintillator by nuclear recoil ...

2010-09-08T23:59:59.000Z

245

Hydro-FAST Axial Flow Simulation Code Development  

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

strategy Summary of work to date * HydroTurbSim (turbulence) * MAP (mooring) * HydroFAST (hydro-servo-elastic) Path forward Aquantis Verdant NATIONAL RENEWABLE ENERGY LABORATORY...

246

Specialists' workshop on fast pyrolysis of biomass  

DOE Green Energy (OSTI)

This workshop brought together most of those who are currently working in or have published significant findings in the area of fast pyrolysis of biomass or biomass-derived materials, with the goal of attaining a better understanding of the dominant mechanisms which produce olefins, oxygenated liquids, char, and tars. In addition, background papers were given in hydrocarbon pyrolysis, slow pyrolysis of biomass, and techniques for powdered-feedstock preparation in order that the other papers did not need to introduce in depth these concepts in their presentations for continuity. In general, the authors were requested to present summaries of experimental data with as much interpretation of that data as possible with regard to mechanisms and process variables such as heat flux, temperatures, partial pressure, feedstock, particle size, heating rates, residence time, etc. Separate abstracts have been prepared of each presentation for inclusion in the Energy Data Base. (DMC)

Not Available

1980-01-01T23:59:59.000Z

247

Fast Camera Imaging of Hall Thruster Ignition  

SciTech Connect

Hall thrusters provide efficient space propulsion by electrostatic acceleration of ions. Rotating electron clouds in the thruster overcome the space charge limitations of other methods. Images of the thruster startup, taken with a fast camera, reveal a bright ionization period which settles into steady state operation over 50 ?s. The cathode introduces azimuthal asymmetry, which persists for about 30 ?s into the ignition. Plasma thrusters are used on satellites for repositioning, orbit correction and drag compensation. The advantage of plasma thrusters over conventional chemical thrusters is that the exhaust energies are not limited by chemical energy to about an electron volt. For xenon Hall thrusters, the ion exhaust velocity can be 15-20 km/s, compared to 5 km/s for a typical chemical thruster

C.L. Ellison, Y. Raitses and N.J. Fisch

2011-02-24T23:59:59.000Z

248

Fast adaptive elliptical filtering using box splines  

E-Print Network (OSTI)

We demonstrate that it is possible to filter an image with an elliptic window of varying size, elongation and orientation with a fixed computational cost per pixel. Our method involves the application of a suitable global pre-integrator followed by a pointwise-adaptive localization mesh. We present the basic theory for the 1D case using a B-spline formalism and then appropriately extend it to 2D using radially-uniform box splines. The size and ellipticity of these radially-uniform box splines is adaptively controlled. Moreover, they converge to Gaussians as the order increases. Finally, we present a fast and practical directional filtering algorithm that has the capability of adapting to the local image features.

Chaudhury, Kunal Narayan; Unser, Michael

2009-01-01T23:59:59.000Z

249

One more experiment on "fast-light"  

E-Print Network (OSTI)

Contemporary observational and theoretical studies on the temporal nature of microscopic measurements renewed the discussion about the fundamental constants, leading to the possibility of light speed variation and superluminal pulse propagation. Gain assisted experiments using anomalous dispersion near an absorption line in atomic gas, a "fast - light" medium, seem to lead to a wave group velocity vG exceeding c, the vacuum speed of light; moreover, definition of the information velocity vi sets the question of interpretation of the three speeds: one view is that vi = vG, but this violates Causality; another view is that vi = c in all situations, but this limits, a priori, the transport of information. Another view is that vi, vG and c are distinct. This contribution follows the last possibility. A draft discussion on space-time is given.

R Assumpcao

2003-12-11T23:59:59.000Z

250

Fast-acting nuclear reactor control device  

DOE Patents (OSTI)

This invention consists of a fast-acting nuclear reactor control device for moving and positioning a safety control rod to desired elevations within the core of the reactor between a run position in which the safety control rod is outside the reactor core, and a shutdown position in which the rod is fully inserted in the reactor core. The device employs a hydraulic pump motor, an electric gear motor, and a solenoid valve to drive the safety control rod into the reactor core through the entire stroke of the safety control rod. An overrunning clutch, allows the safety control rod to freely travel toward a safe position in the event of a partial drive system failure.

Kotlyar, O.M.; West, P.B.

1992-12-31T23:59:59.000Z

251

Update; Sodium advanced fast reactor (SAFR) concept  

SciTech Connect

This paper reports on the sodium advanced fast reactor (SAFR) concept developed by the team of Rockwell International, Combustion Engineering, and Bechtel during the 3-year period extending from January 1985 to December 1987 as one element in the U.S. Department of Energy's Advanced Liquid Metal Reactor Program. In January 1988, the team was expanded to include Duke Engineering and Services, Inc., and the concept development was extended under DOE's Program for Improvement in Advanced Modular LMR Design. The SAFR plant concept employs a 450-MWe pool-type liquid metal cooled reactor as its basic module. The reactor assembly module is a standardized shop-fabricated unit that can be shipped to the plant site by barge for installation. Shop fabrication minimizes nuclear-grade field fabrication and reduces the plant construction schedule. Reactor modules can be used individually or in multiples at a given site to supply the needed generating capacity.

Oldenkamp, R.D.; Brunings, J.E. (Rockwell International Corp., Canoga Park, CA (USA)); Guenther, E. (Combustion Engineering, Windsor, CT (US)); Hren, R. (Bechtel National Inc., San Francisco, CA (US))

1988-01-01T23:59:59.000Z

252

A system for fast neutron radiography  

SciTech Connect

A system has been designed and a neutron generator installed to perform fast neutron radiography. With this sytem, objects as small as a coin or as large as a waste drum can be radiographed. The neutron source is an MF Physics A-711 neutron generator which produces 3x10{sup 10} neutrons/second with an average energy of 14.5 MeV. The radiography system uses x-ray scintillation screens and film in commercially available cassettes. The cassettes have been modified to include a thin sheet of plastic to convert neutrons to protons through elastic scattering from hydrogen and other low Z materials in the plastic. For film densities from 1.8 to 3.0, exposures range from 1.9x10{sup 7} to 3.8x10{sup 8} n/cm{sup 2} depending on the type of screen and film.

Klann, R.T.

1996-05-01T23:59:59.000Z

253

Summary of Fast Pyrolysis and Upgrading GHG Analyses  

SciTech Connect

The Energy Independence and Security Act (EISA) of 2007 established new renewable fuel categories and eligibility requirements (EPA 2010). A significant aspect of the National Renewable Fuel Standard 2 (RFS2) program is the requirement that the life cycle greenhouse gas (GHG) emissions of a qualifying renewable fuel be less than the life cycle GHG emissions of the 2005 baseline average gasoline or diesel fuel that it replaces. Four levels of reduction are required for the four renewable fuel standards. Table 1 lists these life cycle performance improvement thresholds. Table 1. Life Cycle GHG Thresholds Specified in EISA Fuel Type Percent Reduction from 2005 Baseline Renewable fuel 20% Advanced biofuel 50% Biomass-based diesel 50% Cellulosic biofuel 60% Notably, there is a specialized subset of advanced biofuels that are the cellulosic biofuels. The cellulosic biofuels are incentivized by the Cellulosic Biofuel Producer Tax Credit (26 USC 40) to stimulate market adoption of these fuels. EISA defines a cellulosic biofuel as follows (42 USC 7545(o)(1)(E)): The term “cellulosic biofuel” means renewable fuel derived from any cellulose, hemicellulose, or lignin that is derived from renewable biomass and that has lifecycle greenhouse gas emissions, as determined by the Administrator, that are at least 60 percent less than the baseline lifecycle greenhouse gas emissions. As indicated, the Environmental Protection Agency (EPA) has sole responsibility for conducting the life cycle analysis (LCA) and making the final determination of whether a given fuel qualifies under these biofuel definitions. However, there appears to be a need within the LCA community to discuss and eventually reach consensus on discerning a 50–59 % GHG reduction from a ? 60% GHG reduction for policy, market, and technology development. The level of specificity and agreement will require additional development of capabilities and time for the sustainability and analysis community, as illustrated by the rich dialogue and convergence around the energy content and GHG reduction of cellulosic ethanol (an example of these discussions can be found in Wang 2011). GHG analyses of fast pyrolysis technology routes are being developed and will require significant work to reach the levels of development and maturity of cellulosic ethanol models. This summary provides some of the first fast pyrolysis analyses and clarifies some of the reasons for differing results in an effort to begin the convergence on assumptions, discussion of quality of models, and harmonization.

Snowden-Swan, Lesley J.; Male, Jonathan L.

2012-12-07T23:59:59.000Z

254

A Fast Algorithm for the Exhaustive Analysis of 12-Nucleotide-Long DNA Sequences. Applications to Human Genomics  

Science Conference Proceedings (OSTI)

We have developed a new algorithm that allows the exhaustive determination of words of up to 12 nucleotides in DNA sequences. It is fast enough as to be used at a genomic scale running on a standard personal computer. As an example, we apply the algorithm ...

Vicente Arnau; Ignacio Marín

2003-04-01T23:59:59.000Z

255

Development of a Fast Time-Resolved Aerosol Collector (Fast TRAC)  

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

Yu Yu & James Cowin PNNL Fast Time-Resolved Aerosol Collector ......Fast TRAC...... Xiao-Ying Yu, Ali Hashim, Martin Iedema, and James Cowin Atmospheric Sciences, Chemical Sciences Pacific Northwest National Laboratory Richland, WA Research is supported by NOAA & DOE. *Patent Pending Xiao-Ying Yu & James Cowin PNNL Cloud Microstructures ≤ 1 m Want to know the aerosols at this resolution Aircraft flies at 150 m/s Need time resolution 1 m/150 m/s = 6 ms (!!!!!) Xiao-Ying Yu & James Cowin PNNL What is TRAC? - Time-Resolved Aerosol Collector * Uses an impactor * ~ 600 TEM samples * Flow rate: 1 l/min * Time resolution: ≥ 1 min* * Applications: Off-line analysis: - particle hygroscopicity, morphology, composition.. (6.5 in) 3 , 7 lb, 12 V, 8 W 0% 20% 40% 60%

256

Fast food in a Chinese provincial city: a comparative analysis  

E-Print Network (OSTI)

More than a decade ago American fast food entered the Chinese market. Since then the number of fast food and organized chain restaurants in China has multiplied. Chinese consumers, especially those who live in large urban areas, have accepted Western-style fast food restaurants that serve French fries and other popular dishes as a way of life. Inspired by the success of the symbolism of McDonald's and KFC, many Chinese restaurants have tried to use traditional Chinese culture to lure customers into what is advertised as indigenous, modern fast food outlets. Recently some Chinese fast food entrepreneurs have successfully developed local versions of the Western fast food system. Based on my three months� ethnographic research in Huai�an, I address the competitive situation between American fast food restaurants and local Chinese restaurants by examining service, price, management, food, and customer expectations. Specifically, this case analysis includes one of the largest American fast food chains and one of the largest Chinese fast food restaurant chains. The data are based on participant observation, informal and formal interviews, a sample survey, and historical documents. The study finds that in Huai�an, one local Chinese fast food restaurant, after improving décor, hygiene and service, has experienced increasing success in the local market. I show that the globalization process has experienced two types of localization in Huai�an. First, Western chains have striven to adapt to the consumers in Huai�an, by insisting on a high degree of local ownership and by modestly tailoring their products to local taste. Second, the mere presence of these Western chains has encouraged Chinese entrepreneurs to develop decidedly local versions of modern fast food enterprises.

Zhu, Haiying

2003-05-01T23:59:59.000Z

257

Utility Direct Medium Voltage DC Fast Charger Update: DC Fast Charger Characterization  

Science Conference Proceedings (OSTI)

EPRI developed a fact charging technology for electric vehicles based on a solid state transformer technology known as the Intelligent Universal Transformer (IUT). The IUT technology replaces both the independent power conversion units as well as the conventional transformer with a single interface system which can be used for fast charging of electric vehicles. The versatility of the IUT provides an intermediate DC bus voltage at the 400-V level that can be directly used for a DC distribution ...

2012-12-31T23:59:59.000Z

258

Categorical Exclusion Determinations: Bonneville Power Administration |  

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

September 19, 2012 September 19, 2012 CX-009203: Categorical Exclusion Determination Ross Maintenance Headquarters Project CX(s) Applied: B1.15 Date: 09/19/2012 Location(s): Washington Offices(s): Bonneville Power Administration September 19, 2012 CX-009200: Categorical Exclusion Determination Respond to the Town of Eatonville's Land Use Review Request (LURR) CX(s) Applied: B4.7 Date: 09/19/2012 Location(s): Washington Offices(s): Bonneville Power Administration September 14, 2012 CX-009204: Categorical Exclusion Determination Bonneville-Hood River Number 1 Danger Pole Replacement and Access Road Upgrades CX(s) Applied: B1.3 Date: 09/14/2012 Location(s): Oregon Offices(s): Bonneville Power Administration September 14, 2012 CX-009202: Categorical Exclusion Determination Port Angeles Substation Equipment Additions

259

Nodal weighting factor method for ex-core fast neutron fluence evaluation  

SciTech Connect

The nodal weighting factor method is developed for evaluating ex-core fast neutron flux in a nuclear reactor by utilizing adjoint neutron flux, a fictitious unit detector cross section for neutron energy above 1 or 0.1 MeV, the unit fission source, and relative assembly nodal powers. The method determines each nodal weighting factor for ex-core neutron fast flux evaluation by solving the steady-state adjoint neutron transport equation with a fictitious unit detector cross section for neutron energy above 1 or 0.1 MeV as the adjoint source, by integrating the unit fission source with a typical fission spectrum to the solved adjoint flux over all energies, all angles and given nodal volume, and by dividing it with the sum of all nodal weighting factors, which is a normalization factor. Then, the fast neutron flux can be obtained by summing the various relative nodal powers times the corresponding nodal weighting factors of the adjacent significantly contributed peripheral assembly nodes and times a proper fast neutron attenuation coefficient over an operating period. A generic set of nodal weighting factors can be used to evaluate neutron fluence at the same location for similar core design and fuel cycles, but the set of nodal weighting factors needs to be re-calibrated for a transition-fuel-cycle. This newly developed nodal weighting factor method should be a useful and simplified tool for evaluating fast neutron fluence at selected locations of interest in ex-core components of contemporary nuclear power reactors. (authors)

Chiang, R. T. [AREVA NP Inc., 6399 San Ignacio Ave., San Jose, CA 95119 (United States)

2012-07-01T23:59:59.000Z

260

A Fast Response Continuous Analyzer for Halogenated Atmospheric Tracers  

Science Conference Proceedings (OSTI)

A fast response version of the continuous SF6 analyzer originally introduced in 1976 has been developed. The new continuous analyzer has a response time constant of 0.36 s, which is 4–30 times faster than previous analyzers. The very fast ...

Richard L. Benner; Brian Lamb

1985-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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261

Welding austenitic steel clads for fast reactor fuel pins  

SciTech Connect

ABS>From symposium on fuel and elements for fast reactors; Brussels. Belgium (2 Jul 1973). Developmental programs aimed at fabrication of stainless steelclad PuO/sub 2/ fuel pins are described. Information and data are included on welding fast reactor fuel cans, methods of reducing the incidence of weld cracking, effects of weld stresses, and fuel plug design. (JRD)

Papeleux, P.; Flipot, A.J.; Lafontaine, I.

1973-01-01T23:59:59.000Z

262

Detectors for Energy-Resolved Fast Neutron Imaging  

E-Print Network (OSTI)

Two detectors for energy-resolved fast-neutron imaging in pulsed broad-energy neutron beams are presented. The first one is a neutron-counting detector based on a solid neutron converter coupled to a gaseous electron multiplier (GEM). The second is an integrating imaging technique, based on a scintillator for neutron conversion and an optical imaging system with fast framing capability.

V. Dangendorf; A. Breskin; R. Chechik; G. Feldman; M. B. Goldberg; O. Jagutzki; C. Kersten; G. Laczko; I. Mor; U. Spillman; D. Vartsky

2004-03-25T23:59:59.000Z

263

A Task Parallel Implementation of Fast Multipole Methods  

Science Conference Proceedings (OSTI)

This paper describes a task parallel implementation of ExaFMM, an open source implementation of fast multipole methods (FMM), using a lightweight task parallel library MassiveThreads. Although there have been many attempts on parallelizing FMM, experiences ... Keywords: task parallelism, fast multipole methods, FMM, divide and conquer, MassiveThreads, ExaFMM

Kenjiro Taura, Jun Nakashima, Rio Yokota, Naoya Maruyama

2012-11-01T23:59:59.000Z

264

Coupling to the fast wave via a phased waveguide array  

SciTech Connect

A dielectric-loaded waveguide array has been used to launch fast waves into a plasma in which ..omega../sup pi/ < ..omega.. << ..omega../sub pe/ approx. ..omega../sub ce/. The wave propagates when accessibility and cutoff requirements are satisfied. Reflection coefficients as low as 1% have been measured. Use of the fast wave for steady-state current drive is suggested.

Olson, L.; McWilliams, R.; Glanz, J.; Motley, R.W.

1984-03-01T23:59:59.000Z

265

A Fast Spectral Subtractional Solver for Elliptic Equations  

Science Conference Proceedings (OSTI)

The paper presents a fast subtractional spectral algorithm for the solution of the Poisson equation and the Helmholtz equation which does not require an extension of the original domain. It takes O(N2 log N) operations, ... Keywords: equations in complex geometries, fast spectral direct solver, preconditioned iterative algorithm for elliptic equations, the Poisson equation, the modified Helmholtz equation

Elena Braverman; Boris Epstein; Moshe Israeli; Amir Averbuch

2004-08-01T23:59:59.000Z

266

Compositionality for Markov reward chains with fast and silent transitions  

Science Conference Proceedings (OSTI)

A parallel composition is defined for Markov reward chains with stochastic discontinuity, and with fast and silent transitions. In this setting, compositionality with respect to the relevant aggregation preorders is established. For Markov reward chains ... Keywords: Aggregation, Fast transitions, Markov reward chains, Parallel composition, Silent transitions

J. Markovski; A. Sokolova; N. Tr?ka; E. P. de Vink

2009-08-01T23:59:59.000Z

267

Fast arithmetic for triangular sets: From theory to practice  

Science Conference Proceedings (OSTI)

We study arithmetic operations for triangular families of polynomials, concentrating on multiplication in dimension zero. By a suitable extension of fast univariate Euclidean division, we obtain theoretical and practical improvements over a direct recursive ... Keywords: High-performance computing, Fast polynomial arithmetic, Triangular set

Xin Li; Marc Moreno Maza; Éric Schost

2009-07-01T23:59:59.000Z

268

Direct Energy Conversion for Fast Reactors  

DOE Green Energy (OSTI)

Thermoelectric generators (TEG) are a well-established technology for compact low power output long-life applications. Solid state TEGs are the technology of choice for many space missions and have also been used in remote earth-based applications. Since TEGs have no moving parts and can be hermetically sealed, there is the potential for nuclear reactor power systems using TEGs to be safe, reliable and resistant to proliferation. Such power units would be constructed in a manner that would provide decades of maintenance-free operation, thereby minimizing the possibility of compromising the system during routine maintenance operations. It should be possible to construct an efficient direct energy conversion cascade from an appropriate combination of solid-state thermoelectric generators, with each stage in the cascade optimized for a particular range of temperature. Performance of cascaded thermoelectric devices could be further enhanced by exploitation of compositionally graded p-n couples, as well as radial elements to maximize utilization of the heat flux. The Jet Propulsion Laboratory in Pasadena has recently reported segmented unicouples that operate between 300 and 975 K and have conversion efficiencies of 15 percent [Caillat, 2000]. TEGs are used in nuclear-fueled power sources for space exploration, in power sources for the military, and in electrical generators on diesel engines. Second, there is a wide variety of TE materials applicable to a broad range of temperatures. New materials may lead to new TEG designs with improved thermoelectric properties (i.e. ZT approaching 3) and significantly higher efficiencies than in designs using currently available materials. Computational materials science (CMS) has made sufficient progress and there is promise for using these techniques to reduce the time and cost requirements to develop such new TE material combinations. Recent advances in CMS, coupled with increased computational power afforded by the Accelerated Strategic Computing Initiative (ASCI), should improve the speed and decrease the cost of developing new TEGs. The system concept to be evaluated is shown in Figure 1. Liquid metal is used to transport heat away from the nuclear heat source and to the TEG. Air or liquid (water or a liquid metal) is used to transport heat away from the cold side of the TEG. Typical reactor coolants include sodium or eutectic mixtures of lead-bismuth. These are coolants that have been used to cool fast neutron reactors. Heat from the liquid metal coolant is rejected through the thermal electric materials, thereby producing electrical power directly. The temperature gradient could extend from as high as 1300 K to 300 K, although fast reactor structural materials (including those used to clad the fuel) currently used limit the high temperature to about 825K.

Brown, N.; Cooper, J.; Vogt, D.; Chapline, G.; Turchi, P.; Barbee Jr., T.; Farmer, J.

2000-07-01T23:59:59.000Z

269

Correlation of /sup 239/Pu thermal and fast reactor fission yields with neutron energy  

SciTech Connect

The relative isotopic abundances and the fisson yields for over 40 stable and long-lived fission products from /sup 239/Pu fast fission were evaluated to determine if the data could be correlated with neutron energy. Only mass spectrometric data were used in this study. For some nuclides changes of only a few percent in the relative isotopic abundance or the fission yields over the energy range of thermal to 1 MeV are easily discernable and significant; for others the data are too sparse and scattered to obtain a good correlation. The neutron energy index usedin this study is the /sup 150/Nd//sup 143/Nd isotopic ratio. The results of this correlation study compared to the US Evaluated Nuclear Data File (ENDF) fast fission yield compilation. Several discrepancies are noted and suggestions for future work are presented.

Maeck, W.J.

1981-10-01T23:59:59.000Z

270

Supercritical CO2 direct cycle Gas Fast Reactor (SC-GFR) concept.  

SciTech Connect

This report describes the supercritical carbon dioxide (S-CO{sub 2}) direct cycle gas fast reactor (SC-GFR) concept. The SC-GFR reactor concept was developed to determine the feasibility of a right size reactor (RSR) type concept using S-CO{sub 2} as the working fluid in a direct cycle fast reactor. Scoping analyses were performed for a 200 to 400 MWth reactor and an S-CO{sub 2} Brayton cycle. Although a significant amount of work is still required, this type of reactor concept maintains some potentially significant advantages over ideal gas-cooled systems and liquid metal-cooled systems. The analyses presented in this report show that a relatively small long-life reactor core could be developed that maintains decay heat removal by natural circulation. The concept is based largely on the Advanced Gas Reactor (AGR) commercial power plants operated in the United Kingdom and other GFR concepts.

Wright, Steven Alan; Parma, Edward J., Jr.; Suo-Anttila, Ahti Jorma (Computational Engineering Analysis, Albuquerque, NM); Al Rashdan, Ahmad (Texas A& M University, College Station, TX); Tsvetkov, Pavel Valeryevich (Texas A& M University, College Station, TX); Vernon, Milton E.; Fleming, Darryn D.; Rochau, Gary Eugene

2011-05-01T23:59:59.000Z

271

Superconducting gamma and fast-neutron spectrometers with high energy resolution  

DOE Patents (OSTI)

Superconducting Gamma-ray and fast-neutron spectrometers with very high energy resolution operated at very low temperatures are provided. The sensor consists of a bulk absorber and a superconducting thermometer weakly coupled to a cold reservoir, and determines the energy of the incident particle from the rise in temperature upon absorption. A superconducting film operated at the transition between its superconducting and its normal state is used as the thermometer, and sensor operation at reservoir temperatures around 0.1 K reduces thermal fluctuations and thus enables very high energy resolution. Depending on the choice of absorber material, the spectrometer can be configured either as a Gamma-spectrometer or as a fast-neutron spectrometer.

Friedrich, Stephan (San Jose, CA); , Niedermayr, Thomas R. (Oakland, CA); Labov, Simon E. (Berkeley, CA)

2008-11-04T23:59:59.000Z

272

Fast power cycle for fusion reactors  

SciTech Connect

The unique, deep penetration capability of 14 MeV neutrons produced in DT fusion reactions allows the generation of very high temperature working fluid temperatures in a thermal power cycle. In the FAST (Fusion Augmented Steam Turbine) power cycle steam is directly superheated by the high temperature ceramic refractory interior of the blanket, after being generated by heat extracted from the relatively cool blanket structure. The steam is then passed to a high temperature gas turbine for power generation. Cycle studies have been carried out for a range of turbine inlet temperatures (1600/sup 0/F to 3000/sup 0/F (870 to 1650/sup 0/C)), number of reheats, turbine mechanical efficiency, recuperator effectiveness, and system pressure losses. Gross cycle efficiency is projected to be in the range of 55 to 60%, (fusion energy to electric power), depending on parameters selected. Turbine inlet temperatures above 2000/sup 0/F, while they do increase efficiency somewhat, are not necessarily for high cycle efficiency.

Powell, J.; Fillo, J.; Makowitz, H.

1978-01-01T23:59:59.000Z

273

The sodium-cooled fast reactor (SFR).  

DOE Green Energy (OSTI)

The primary mission for the SFR is the management of high-level wastes, and in particular, management of plutonium and other actinides. The Generation IV Roadmap Fuel Cycle Crosscut Group (FCCG) found that the limiting factor facing an essential role for nuclear energy with the once-through cycle is the availability of repository space worldwide [FCCG Report]. This becomes an important issue, requiring new repository development in only a few decades. Systems that employ a fully closed fuel cycle hold the promise to reduce repository space and performance requirements, although their costs must be held to acceptable levels. Closed fuel cycles, working alone or symbiotically with systems using a once-through cycle, permit partitioning the nuclear waste and management of each partitioned fraction. In the longer term, beyond 50 years, or if major new missions requiring nuclear energy production (such as a major growth in the use of hydrogen as an energy carrier) develop, uranium resource availability also becomes a limiting factor unless breakthroughs occur in mining or extraction technologies. Fast spectrum reactors have the ability to utilize almost all of the energy in the natural uranium versus the 1% utilized in thermal spectrum systems.

Lineberry, M. J.; Allen, T. R.

2002-10-25T23:59:59.000Z

274

Fast Beam-Based BPM Calibration  

Science Conference Proceedings (OSTI)

The Alignment Diagnostic System (ADS) of the LCLS undulator system indicates that the 33 undulator quadrupoles have extremely high position stability over many weeks. However, beam trajectory straightness and lasing efficiency degrade more quickly than this. A lengthy Beam Based Alignment (BBA) procedure must be executed every two to four weeks to re-optimize the X-ray beam parameters. The undulator system includes RF cavity Beam Position Monitors (RFBPMs), several of which are utilized by an automatic feedback system to align the incoming electron-beam trajectory to the undulator axis. The beam trajectory straightness degradation has been traced to electronic drifts of the gain and offset of the BPMs used in the beam feedback system. To quickly recover the trajectory straightness, we have developed a fast beam-based procedure to recalibrate the BPMs. This procedure takes advantage of the high-precision monitoring capability of the ADS, which allows highly repeatable positioning of undulator quadrupoles. This report describes the ADS, the position stability of the LCLS undulator quadrupoles, and some results of the new recovery procedure.

Bertsche, K.; Loos, H.; Nuhn, H.-D.; Peters, F.; /SLAC

2012-10-15T23:59:59.000Z

275

Immobilization of Fast Reactor First Cycle Raffinate  

Science Conference Proceedings (OSTI)

This paper describes the results of work to bring forward the timing for the immobilization of first cycle raffinate from reprocessing fuel from the Dounreay Prototype Fast Reactor (PFR). First cycle raffinate is the liquor which contains > 99% of the fission products separated from spent fuel during reprocessing. Approximately 203 m3 of raffinate from the reprocessing of PFR fuel is held in four tanks at the UKAEA's site at Dounreay, Scotland. Two methods of immobilization of this high level waste (HLW) have been considered: vitrification and cementation. Vitrification is the standard industry practice for the immobilization of first cycle raffinate, and many papers have been presented on this technique elsewhere. However, cementation is potentially feasible for immobilizing first cycle raffinate because the heat output is an order of magnitude lower than typical HLW from commercial reprocessing operations such as that at the Sellafield site in Cumbria, England. In fact, it falls within the upper end of the UK definition of intermediate level waste (ILW). Although the decision on which immobilization technique will be employed has yet to be made, initial development work has been undertaken to identify a suitable cementation formulation using inactive simulant of the raffinate. An approach has been made to the waste disposal company Nirex to consider the disposability of the cemented product material. The paper concentrates on the process development work that is being undertaken on cementation to inform the decision making process for selection of the immobilization method.

Langley, K. F.; Partridge, B. A.; Wise, M.

2003-02-26T23:59:59.000Z

276

Applications of fast wave in spherical tokamaks  

SciTech Connect

In spherical tokamaks (ST), the magnetic field strength varies over a wide range across the plasma, and at high betas it deviates significantly from the 1/R dependence of conventional tokamaks. This, together with the high density expected in ST, poses challenging problems for RF heating and current drive. In this paper, the authors investigate the various possible applications of fast waves (FW) in ST. The adjoint technique of calculating current drive is implemented in the raytracing code CURRAY. The applicability of high harmonic and subharmonic FW to steady state ST is considered. They find that high harmonic FW tends to be totally absorbed before reaching the core and may be considered a candidate for off axis current drive while the subharmonic FW tends to be absorbed mainly in the core region and may be considered for central current drive. A difficult problem is the maintenance of current at the startup stage. In the bootstrap ramp-up scenario, the current ramp-up is mainly provided by the bootstrap current. Under this condition, the role of rf becomes mainly the sustainment of plasma through electron heating. Using a slab full-wave code SEMAL, the authors find that the ion-ion-hybrid mode conversion scheme is a promising candidate. The effect of possible existence of edge Alfven resonance and high harmonic cyclotron resonance is investigated and regimes of minimization of edge heating identified.

Chiu, S.C.; Chan, V.S.; Lin-Liu, Y.R.; Miller, R.L.; Prater, R.; Politzer, P.

1997-04-01T23:59:59.000Z

277

Fast static available transfer capability determination using radial basis function neural network  

Science Conference Proceedings (OSTI)

In a competitive electricity market, available transfer capability information is required by market participants as well as the system operator for secure operation of the power system. The on-line updating of available transfer capability information ... Keywords: Available transfer capability, Euclidean distance based clustering technique, Radial basis function neural network, Random forest technique

T. Jain; S. N. Singh; S. C. Srivastava

2011-03-01T23:59:59.000Z

278

Tune Determination of Strongly Coupled Betatron Oscillations in a Fast-Ramping Synchrotron  

Science Conference Proceedings (OSTI)

Tune identification -- i.e. attribution of the spectral peak to a particular normal de of oscillations -- can present a significant difficulty in the presence of strong transverse coupling when the normal mode with a lower damping rate dominates spectra of Turn-by-Turn oscillations in both planes. The introduced earlier phased sum algorithm helped to recover the weaker normal mode signal from the noise, but by itself proved to be insufficient for automatic peak identification in the case of close phase advance distribution in both planes. To resolve this difficulty we modified the algorithm by taking and analyzing Turn-by-Turn data for two different ramps with the beam oscillation excited in each plane in turn. Comparison of relative amplitudes of Fourier components allows for correct automatic tune identification. The proposed algorithm was implemented in the Fermilab Booster B38 console application and successfully used for tune, coupling and chromaticity measurements.

Alexahin, Y.; Gianfelice-Wendt, E.; Marsh, W; Triplett, K.; /Fermilab

2012-05-01T23:59:59.000Z

279

High-Resolution Fast-Neutron Spectrometry for Arms Control and Treaty Verification  

Science Conference Proceedings (OSTI)

Many nondestructive nuclear analysis techniques have been developed to support the measurement needs of arms control and treaty verification, including gross photon and neutron counting, low- and high-resolution gamma spectrometry, time-correlated neutron measurements, and photon and neutron imaging. One notable measurement technique that has not been extensively studied to date for these applications is high-resolution fast-neutron spectrometry (HRFNS). Applied for arms control and treaty verification, HRFNS has the potential to serve as a complimentary measurement approach to these other techniques by providing a means to either qualitatively or quantitatively determine the composition and thickness of non-nuclear materials surrounding neutron-emitting materials. The technique uses the normally-occurring neutrons present in arms control and treaty verification objects of interest as an internal source of neutrons for performing active-interrogation transmission measurements. Most low-Z nuclei of interest for arms control and treaty verification, including 9Be, 12C, 14N, and 16O, possess fast-neutron resonance features in their absorption cross sections in the 0.5- to 5-MeV energy range. Measuring the selective removal of source neutrons over this energy range, assuming for example a fission-spectrum starting distribution, may be used to estimate the stoichiometric composition of intervening materials between the neutron source and detector. At a simpler level, determination of the emitted fast-neutron spectrum may be used for fingerprinting 'known' assemblies for later use in template-matching tests. As with photon spectrometry, automated analysis of fast-neutron spectra may be performed to support decision making and reporting systems protected behind information barriers. This paper will report recent work at Idaho National Laboratory to explore the feasibility of using HRFNS for arms control and treaty verification applications, including simulations and experiments, using fission-spectrum neutron sources to assess neutron transmission through composite low-Z attenuators.

David L. Chichester; James T. Johnson; Edward H. Seabury

2012-07-01T23:59:59.000Z

280

FAST NEUTRON DOSIMETER FOR HIGH TEMPERATURE OPERATION BY MEASUREMENT OF THE AMOUNT OF CESIUM 137 FORMED FROM A THORIUM WIRE  

DOE Patents (OSTI)

A method and device for measurement of integrated fast neutron flux in the presence of a large thermal neutron field are described. The device comprises a thorium wire surrounded by a thermal neutron attenuator that is, in turn, enclosed by heat-resistant material. The method consists of irradiating the device in a neutron field whereby neutrons with energies in excess of 1.1 Mev cause fast fissions in the thorium, then removing the thorium wire, separating the cesium-137 fission product by chemical means from the thorium, and finally counting the radioactivity of the cesium to determine the number of fissions which have occurred so that the integrated fast flux may be obtained. (AEC)

McCune, D.A.

1964-03-17T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Categorical Exclusion Determinations: Idaho Operations Office | Department  

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

Idaho Operations Office Idaho Operations Office Categorical Exclusion Determinations: Idaho Operations Office Categorical Exclusion Determinations issued by Idaho Operations Office. DOCUMENTS AVAILABLE FOR DOWNLOAD July 11, 2013 CX-010699: Categorical Exclusion Determination North Boulevard Annex Lease Termination CX(s) Applied: B1.24 Date: 07/11/2013 Location(s): Idaho Offices(s): Idaho Operations Office July 11, 2013 CX-010698: Categorical Exclusion Determination Modeling and Validation of Sodium Plugging for Heat Exchangers in Sodium-cooled Fast Reactor Systems CX(s) Applied: B3.6 Date: 07/11/2013 Location(s): Illinois Offices(s): Idaho Operations Office June 25, 2013 CX-010701: Categorical Exclusion Determination Materials and Fuels Complex Diversion Dam CX(s) Applied: B2.5 Date: 06/25/2013

282

Fast 704 MHz Ferroelectric Tuner for Superconducting Cavities  

SciTech Connect

The Omega-P SBIR project described in this Report has as its goal the development, test, and evaluation of a fast electrically-controlled L-band tuner for BNL Energy Recovery Linac (ERL) in the Electron Ion Collider (EIC) upgrade of the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL). The tuner, that employs an electrically-controlled ferroelectric component, is to allow fast compensation to cavity resonance changes. In ERLs, there are several factors which significantly affect the amount of power required from the wall-plug to provide the RF-power level necessary for the operation. When beam loading is small, the power requirements are determined by (i) ohmic losses in cavity walls, (ii) fluctuations in amplitude and/or phase for beam currents, and (iii) microphonics. These factors typically require a substantial change in the coupling between the cavity and the feeding line, which results in an intentional broadening of the cavity bandwidth, which in turn demands a significant amount of additional RF power. If beam loading is not small, there is a variety of beam-drive phase instabilities to be managed, and microphonics will still remain an issue, so there remain requirements for additional power. Moreover ERL performance is sensitive to changes in beam arrival time, since any such change is equivalent to phase instability with its vigorous demands for additional power. In this Report, we describe the new modular coaxial tuner, with specifications suitable for the 704 MHz ERL application. The device would allow changing the RF-coupling during the cavity filling process in order to effect significant RF power savings, and also will provide rapid compensation for beam imbalance and allow for fast stabilization against phase fluctuations caused by microphonics, beam-driven instabilities, etc. The tuner is predicted to allow a reduction of about ten times in the required power from the RF source, as compared to a compensation system with narrower bandwidth. It is planned to build a 704 MHz version of the tuner, to check its underlying principles, and to make high-power tests at power densities aimed towards controlling 50 kW of average power. Steps towards this goal will be limited by, among other factors, losses in the actual ferroelectric elements in the ferroelectric assemblies. As the ferroelectric material loss tangent is reduced through efforts by the supplier Euclid TechLabs LLC, the concomitant power loss in its ferroelectric assemblies will drop, and the average power-handling capability of the Omega-P tuner will rise. It can thus be anticipated that the Phase II development project of the 704 MHz tuner will be iterative, but the pace and ultimate power-handling level of the tuner is difficult to predict at this early stage in Euclid's development program. Fortunately, since Omega-P's conceptual tuner is a simple module (nominally rated for 5 kW), so that the number of modules required in each tuner can be chosen, depending upon the cavity power level needed, plus the power for tuner losses.

Jay L. Hirshfield

2012-04-12T23:59:59.000Z

283

Cultivation of fast-growing hardwoods  

DOE Green Energy (OSTI)

The intensive culture of hybrid poplar has received in-depth study as part of the Fast-Growing Hardwood Program. Research has concentrated on short-rotation intensive culture systems. Specific studies and operations included establishing and maintaining a nursery/cutting orchard, installing clone-site trials in central and southern New York State and initiating studies of no-till site preparation, nutrient utilization efficiency, wood quality and soil solution chemistry. The nursery/cutting orchard was used to provide material for various research plantings and as a genotype repository. Clone- site trials results showed that hybrid poplar growth potential was affected by clone type and was related to inherent soil-site conditions. No-till techniques were shown to be successful in establishing hybrid poplar in terms of survival and growth when compared to conventional clean tillage and/or no competition control, and can be considered for use on sites that are particularly prone to erosion. Nutrient use efficiency was significantly affected by clone type, and should be a consideration when selecting clones for operational planting if fertilization is to be effectively and efficiently used. Wood quality differed among clones with site condition and tree age inferred as important factors. Soil solution chemistry was minimally affected by intensive cultural practices with no measured adverse effect on soil water quality. Generally, results of these studies showed that appropriate hybrid poplar clones grown in short-rotation intensively cultured systems can be used successfully in New York State if proper site conditions exist and appropriate establishment and maintenance techniques are used. 37 refs., 4 figs., 22 tabs.

White, E.H.; Abrahamson, L.P. (State Univ. of New York, Syracuse, NY (United States). Coll. of Environmental Science and Forestry)

1991-10-01T23:59:59.000Z

284

Fast Spectrum Molten Salt Reactor Options  

DOE Green Energy (OSTI)

During 2010, fast-spectrum molten-salt reactors (FS-MSRs) were selected as a transformational reactor concept for light-water reactor (LWR)-derived heavy actinide disposition by the Department of Energy-Nuclear Energy Advanced Reactor Concepts (ARC) program and were the subject of a preliminary scoping investigation. Much of the reactor description information presented in this report derives from the preliminary studies performed for the ARC project. This report, however, has a somewhat broader scope-providing a conceptual overview of the characteristics and design options for FS-MSRs. It does not present in-depth evaluation of any FS-MSR particular characteristic, but instead provides an overview of all of the major reactor system technologies and characteristics, including the technology developments since the end of major molten salt reactor (MSR) development efforts in the 1970s. This report first presents a historical overview of the FS-MSR technology and describes the innovative characteristics of an FS-MSR. Next, it provides an overview of possible reactor configurations. The following design features/options and performance considerations are described including: (1) reactor salt options-both chloride and fluoride salts; (2) the impact of changing the carrier salt and actinide concentration on conversion ratio; (3) the conversion ratio; (4) an overview of the fuel salt chemical processing; (5) potential power cycles and hydrogen production options; and (6) overview of the performance characteristics of FS-MSRs, including general comparative metrics with LWRs. The conceptual-level evaluation includes resource sustainability, proliferation resistance, economics, and safety. The report concludes with a description of the work necessary to begin more detailed evaluation of FS-MSRs as a realistic reactor and fuel cycle option.

Gehin, Jess C [ORNL; Holcomb, David Eugene [ORNL; Flanagan, George F [ORNL; Patton, Bruce W [ORNL; Howard, Rob L [ORNL; Harrison, Thomas J [ORNL

2011-07-01T23:59:59.000Z

285

Measurements of fast electron scaling generated by petawatt laser systems  

Science Conference Proceedings (OSTI)

Fast electron energy spectra have been measured for a range of intensities between 10{sup 18} and 10{sup 21} W cm{sup -2} and for different target materials using electron spectrometers. Several experimental campaigns were conducted on petawatt laser facilities at the Rutherford Appleton Laboratory and Osaka University, where the pulse duration was varied from 0.5 to 5 ps relevant to upcoming fast ignition integral experiments. The incident angle was also changed from normal incidence to 40 deg. in p-polarized. The results confirm a reduction from the ponderomotive potential energy on fast electrons at the higher intensities under the wide range of different irradiation conditions.

Tanimoto, Tsuyoshi; Habara, H.; Kodama, R.; Nakatsutsumi, M.; Tanaka, Kazuo A. [Graduate School of Engineering and Institute of Laser Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan); Lancaster, K. L.; Green, J. S. [STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX (United Kingdom); Scott, R. H. H.; Sherlock, M.; Norreys, Peter A. [STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX (United Kingdom); Department of Physics, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ (United Kingdom); Evans, R. G.; Haines, M. G. [Department of Physics, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ (United Kingdom); Kar, S.; Zepf, M. [Centre for Plasma Physics, School of Mathematics and Physics, Queens University Belfast, University Road, Belfast BT7 1NN (United Kingdom); King, J.; Ma, T.; Wei, M. S.; Yabuuchi, T.; Beg, F. N. [Department of Mechanical and Aerospace Engineering, University of California-San Diego, 9500 Gillman Drive 0411, La Jolla, California 92093-0411 (United States); Key, M. H. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)] (and others)

2009-06-15T23:59:59.000Z

286

Fast Heating of Cylindrically Imploded Plasmas by Petawatt Laser Light  

Science Conference Proceedings (OSTI)

We produced cylindrically imploded plasmas, which have the same density-radius product of the imploded plasma {rho}R with the compressed core in the fast ignition experiment and demonstrated efficient fast heating of cylindrically imploded plasmas with an ultraintense laser light. The coupling efficiency from the laser to the imploded column was 14%-21%, implying strong collimation of energetic electrons over a distance of 300 {mu}m of the plasma. Particle-in-cell simulation shows confinement of the energetic electrons by self-generated magnetic and electrostatic fields excited along the imploded plasmas, and the efficient fast heating in the compressed region.

Nakamura, H.; Nakatsutsumi, M.; Yabuuchi, T. [Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka (Japan); Sentoku, Y. [Nevada Terawatt Facility, Department of Physics, MS-220, University of Nevada, Reno, Nevada 89557 (United States); Matsuoka, T.; Norimatsu, T.; Shiraga, H. [Institute of Laser Engineering, Osaka University, Yamada-oka 2-6, Suita, Osaka (Japan); Kondo, K.; Tanaka, K. A. [Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka (Japan); Institute of Laser Engineering, Osaka University, Yamada-oka 2-6, Suita, Osaka (Japan); Kodama, R. [Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka (Japan); Institute of Laser Engineering, Osaka University, Yamada-oka 2-6, Suita, Osaka (Japan); CREST, Japan Science and Technology Agency, 5-Sanbancho, Chiyoda-ku, Tokyo (Japan)

2008-04-25T23:59:59.000Z

287

CX-009038: Categorical Exclusion Determination | Department of Energy  

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

8: Categorical Exclusion Determination 8: Categorical Exclusion Determination CX-009038: Categorical Exclusion Determination Radiation-induced Ductility Enhancement in Amorphous Fe and Al2O3+TiO2 Nanostructured Coatings in Fast Neutron and High Temperature Environments of Next Generation Reactors - Brookhaven National Laboratory CX(s) Applied: B3.6, B3.10 Date: 08/09/2011 Location(s): New York Offices(s): Nuclear Energy The effects of fast neutrons on the nanostructured coatings deposited on steel alloy and titanium alloy substrates will be studied with particular focus on ductility restoration and the influence of temperature. CX-009038.pdf More Documents & Publications CX-009035: Categorical Exclusion Determination CX-009036: Categorical Exclusion Determination 2013 Annual DOE-NE Materials Research Coordination Meeting

288

Fast Access to Distributed Atomic Memory  

Science Conference Proceedings (OSTI)

We study efficient and robust implementations of an atomic read-write data structure over an asynchronous distributed message-passing system made of reader and writer processes, as well as a number of servers implementing the data structure. We determine ... Keywords: Byzantine failures, atomic registers, distributed algorithms, fault-tolerance, shared-memory emulations, time-complexity

Partha Dutta; Rachid Guerraoui; Ron R. Levy; Marko Vukoli?

2010-08-01T23:59:59.000Z

289

VENUS-F: A fast lead critical core for benchmarking  

Science Conference Proceedings (OSTI)

The zero-power thermal neutron water-moderated facility VENUS at SCK-CEN has been extensively used for benchmarking in the past. In accordance with GEN-IV design tasks (fast reactor systems and accelerator driven systems), the VENUS facility was modified in 2007-2010 into the fast neutron facility VENUS-F with solid core components. This paper introduces the projects GUINEVERE and FREYA, which are being conducted at the VENUS-F facility, and it presents the measurement results obtained at the first critical core. Throughout the projects other fast lead benchmarks also will be investigated. The measurement results of the different configurations can all be used as fast neutron benchmarks. (authors)

Kochetkov, A.; Wagemans, J.; Vittiglio, G. [SCK.CEN, Boeretang 200, 2400 Mol (Belgium)

2011-07-01T23:59:59.000Z

290

Fast Fourier transform on a 3D FPGA  

E-Print Network (OSTI)

Fast Fourier Transforms perform a vital role in many applications from astronomy to cellphones. The complexity of these algorithms results from the many computational steps, including multiplications, they require and, as ...

Basha, Elizabeth (Elizabeth Ann)

2005-01-01T23:59:59.000Z

291

Relativistic electron beam transport for fast ignition relevant scenarios  

E-Print Network (OSTI)

A crucial issue surrounding the feasibility of fast ignition, an alternative inertial confinement fusion scheme, is the ability to efficiently couple energy from an incident short-pulse laser to a high-density, pre-compressed ...

Cottrill, Larissa A

2009-01-01T23:59:59.000Z

292

Homogeneous fast-flux isotope-production reactor  

DOE Patents (OSTI)

A method is described for producing tritium in a liquid metal fast breeder reactor. Lithium target material is dissolved in the liquid metal coolant in order to facilitate the production and removal of tritium.

Cawley, W.E.; Omberg, R.P.

1982-08-19T23:59:59.000Z

293

Large-scale structure of the fast solar wind  

E-Print Network (OSTI)

2001), Connecting the Sun and the Solar Wind: Comparison of592: Solar Wind 11/SOHO 16, Connecting Sun and Heliosphere,scenario, the fast solar wind from the quiet Sun wind would

Bisi, M. M.; Fallows, R. A.; Breen, A. R.; Habbal, S. Rifai; Jones, R. A.

2007-01-01T23:59:59.000Z

294

Simulations reveal fast mode shocks in magnetic reconnection outflows  

Science Conference Proceedings (OSTI)

Magnetic reconnection is commonly perceived to drive flow and particle acceleration in flares of solar, stellar, and astrophysical disk coronae but the relative roles of different acceleration mechanisms in a given reconnection environment are not well understood. While outflow fast mode shocks have been predicted analytically, we show for the first time via direct numerical simulations that such shocks do indeed occur in the outflows of fast reconnection when an obstacle is present. These shocks are distinct from the slow mode Petschek inflow shocks. If Fermi acceleration of electrons operates in the weak fast shocks, the associated compression ratios will induce a Fermi acceleration particle spectrum that is significantly steeper than strong fast shocks commonly studied, but consistent with the demands of solar flares. While this is not the only acceleration mechanism operating in a reconnection environment, it is plausibly a ubiquitous one.

Workman, Jared C. [Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States); Department of Physical and Environmental Sciences, Colorado Mesa University, Grand Junction, Colorado 81501 (United States); Blackman, Eric G. [Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States); Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States); Ren, Chuang [Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States); Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States); Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627 (United States)

2011-09-15T23:59:59.000Z

295

Fast neutron Damage Studies on NdFeB Materials  

E-Print Network (OSTI)

s. We used a specialized area (NIF) that allows fast neutronequivalent neutron facility NIF as well as their Ge detectorfrom our ?rst 46 min run in NIF at MNRC to obtain trace

2005-01-01T23:59:59.000Z

296

Probabilistic transient analysis of fuel choices for sodium fast reactors  

E-Print Network (OSTI)

This thesis presents the implications of using a risk-informed licensing framework to inform the design of Sodium Fast Reactors. NUREG-1860, more commonly known as the Technology Neutral Framework (TNF), is a risk-informed ...

Denman, Matthew R

2011-01-01T23:59:59.000Z

297

An Advanced Fast Steering Mirror for optical communication  

E-Print Network (OSTI)

I describe in this thesis the design, fabrication, assembly, and testing of an Advanced Fast Steering Mirror (AFSM) for precision optical platforms. The AFSM consists of a mirror driven in two rotational axes by normal ...

Kluk, Daniel Joseph

2007-01-01T23:59:59.000Z

298

Acidity of biomass fast pyrolysis bio-oils  

Science Conference Proceedings (OSTI)

The use of the TAN method for measuring the acidity of biomass fast pyrolysis bio-oil was evaluated. Suggestions for carrying out the analysis have been made. The TAN method by ASTM D664 or D3339 can be used for measuring the acidity of fast pyrolysis bio-oils and their hydrotreating products. The main difference between the methods is that ASTM D664 is specified for higher TAN values than ASTM D3339. Special focus should be placed on the interpretation of the TAN curves because they differ significantly from those of mineral oils. The curve for bio-oils is so gentle that the automatic detection may not observe the end point properly and derivatization should be used. The acidity of fast pyrolysis bio-oils is mainly derived (60-70%) from volatile acids. Other groups of compounds in fast pyrolysis bio-oils that influence acidity include phenolics, fatty and resin acids, and hydroxy acids.

Oasmaa, Anja; Elliott, Douglas C.; Korhonen, Jaana

2010-12-17T23:59:59.000Z

299

Iterative solution of elliptic difference equations using fast direct methods  

Science Conference Proceedings (OSTI)

In recent years, fast direct methods have been developed for the numerical solution of the Poisson equation on a rectangle. By taking advantage of the special block structure of the approximating discrete equation on a uniform rectangular mesh, these ...

Paul Concus

1972-12-01T23:59:59.000Z

300

Fast neutron Damage Studies on NdFeB Materials  

E-Print Network (OSTI)

High-Level Dosimeters used in the SLAC Photon andNeutron Fields”, SLAC-PUB-8517, 2002. [7] G. Gross, J.SLAC-PUB-11219 May2005 Fast Neutron Damage Studies on NdFeB

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Probabilistic transient analysis of fuel choices for sodium fast reactors.  

E-Print Network (OSTI)

??This thesis presents the implications of using a risk-informed licensing framework to inform the design of Sodium Fast Reactors. NUREG-1860, more commonly known as the… (more)

Denman, Matthew R

2011-01-01T23:59:59.000Z

302

Fast Flux Test Facility project plan. Revision 2  

Science Conference Proceedings (OSTI)

The Fast Flux Test Facility (FFTF) Transition Project Plan, Revision 2, provides changes to the major elements and project baseline for the deactivation activities necessary to transition the FFTF to a radiologically and industrially safe shutdown condition.

Hulvey, R.K.

1995-11-01T23:59:59.000Z

303

Reactor physics design of supercritical CO?-cooled fast reactors  

E-Print Network (OSTI)

Gas-Cooled Fast Reactors (GFRs) are among the GEN-IV designs proposed for future deployment. Driven by anticipated plant cost reduction, the use of supercritical CO? (S-CO?) as a Brayton cycle working fluid in a direct ...

Pope, Michael A. (Michael Alexander)

2004-01-01T23:59:59.000Z

304

Production EVSE Fact Sheet: DC Fast Charger: Hasetec  

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

38 x 69 x 21 Charge level DC Fast Charge Input voltage 480 VAC - 3 Phase Isolation Transformer 1 75 kVA Maximum input current 2 120 Amp Test Conditions Test date 10232012...

305

Reactor protection system design alternatives for sodium fast reactors  

E-Print Network (OSTI)

Historically, unprotected transients have been viewed as design basis events that can significantly challenge sodium-cooled fast reactors. The perceived potential consequences of a severe unprotected transient in a ...

DeWitte, Jacob D. (Jacob Dominic)

2011-01-01T23:59:59.000Z

306

Energy Storage for DC Fast Chargers Development and Demonstration...  

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

INLEXT-13-28684 Energy Storage for DC Fast Chargers Development and Demonstration of Operating Protocols for 20-kWh and 200-kWh Field Sites Russell Newnham a Sally (Xiaolei) Sun a...

307

Initial measurements of fast ion loss in KSTAR  

Science Conference Proceedings (OSTI)

A fast ion loss detector (FILD) has been installed and tested in Korea Superconducting Tokamak Advanced Research (KSTAR). KSTAR FILD measures the energy and the pitch-angle of the escaping ions with the striking positions on the scintillator plane. Measurements of the fast ion loss have been performed for the neutral beam heated plasmas. Initial experimental results indicate the prompt losses from neutral beam are dominant and the effects of the resonant magnetic perturbation on the fast ion loss are investigated. In addition, further design change of the detector-head in order to avoid excessive heat load and to detect the fusion products or the fast ions having order of MeV of energy is also discussed.

Kim, Junghee; Yoon, S. W.; Kim, W. C. [National Fusion Research Institute, Daejeon 305-806 (Korea, Republic of); Kim, Jun Young [National Fusion Research Institute, Daejeon 305-806 (Korea, Republic of); Department of Nuclear Fusion and Plasma Science, University of Science and Technology, Daejeon 305-350 (Korea, Republic of); Garcia-Munoz, M. [Max-Planck-Institut fuer Plasmaphysik, EURATOM-Association IPP, Garching D-85748 (Germany); Isobe, M. [National Institute for Fusion Science, Toki-shi 509-5292 (Japan)

2012-10-15T23:59:59.000Z

308

A Model for Fast Analog Computation Based on Unreliable Synapses  

Science Conference Proceedings (OSTI)

We investigate through theoretical analysis and computer simulations the consequences of unreliable synapses for fast analog computations in networks of spiking neurons, with analog variables encoded by the current firing activities of pools of spiking ...

Wolfgang Maass; Thomas Natschläger

2000-07-01T23:59:59.000Z

309

The effects of biomass pretreatments on the products of fast pyrolysis.  

E-Print Network (OSTI)

??Fast pyrolysis thermochemically degrades lignocellulosic material into solid char, organic liquids, and gaseous products. Using fast pyrolysis to produce renewable liquid bio-oil to replace crude… (more)

Kasparbauer, Randall Dennis

2009-01-01T23:59:59.000Z

310

Implications of Fast Reactor Transuranic Conversion Ratio  

SciTech Connect

Theoretically, the transuranic conversion ratio (CR), i.e. the transuranic production divided by transuranic destruction, in a fast reactor can range from near zero to about 1.9, which is the average neutron yield from Pu239 minus 1. In practice, the possible range will be somewhat less. We have studied the implications of transuranic conversion ratio of 0.0 to 1.7 using the fresh and discharge fuel compositions calculated elsewhere. The corresponding fissile breeding ratio ranges from 0.2 to 1.6. The cases below CR=1 (“burners”) do not have blankets; the cases above CR=1 (“breeders”) have breeding blankets. The burnup was allowed to float while holding the maximum fluence to the cladding constant. We graph the fuel burnup and composition change. As a function of transuranic conversion ratio, we calculate and graph the heat, gamma, and neutron emission of fresh fuel; whether the material is “attractive” for direct weapon use using published criteria; the uranium utilization and rate of consumption of natural uranium; and the long-term radiotoxicity after fuel discharge. For context, other cases and analyses are included, primarily once-through light water reactor (LWR) uranium oxide fuel at 51 MWth-day/kg-iHM burnup (UOX-51). For CR<1, the heat, gamma, and neutron emission increase as material is recycled. The uranium utilization is at or below 1%, just as it is in thermal reactors as both types of reactors require continuing fissile support. For CR>1, heat, gamma, and neutron emission decrease with recycling. The uranium utilization exceeds 1%, especially as all the transuranic elements are recycled. exceeds 1%, especially as all the transuranic elements are recycled. At the system equilibrium, heat and gamma vary by somewhat over an order of magnitude as a function of CR. Isotopes that dominate heat and gamma emission are scattered throughout the actinide chain, so the modest impact of CR is unsurprising. Neutron emitters are preferentially found among the higher actinides, so the neutron emission varies much stronger with CR, about three orders of magnitude.

Steven J. Piet; Edward A. Hoffman; Samuel E. Bays

2010-11-01T23:59:59.000Z

311

Fast Curing of Composite Wood Products  

SciTech Connect

The overall objective of this program is to develop low temperature curing technologies for UF and PF resins. This will be accomplished by: • Identifying the rate limiting UF and PF curing reactions for current market resins; • Developing new catalysts to accelerate curing reactions at reduced press temperatures and times. In summary, these new curing technologies will improve the strength properties of the composite wood products and minimize the detrimental effects of wood extractives on the final product while significantly reducing energy costs for wood composites. This study is related to the accelerated curing of resins for wood composites such as medium density fiberboard (MDF), particle board (PB) and oriented strandboard (OSB). The latter is frequently manufactured with a phenol-formaldehyde resin whereas ureaformaldehyde (UF) resins are usually used in for the former two grades of composite wood products. One of the reasons that hinder wider use of these resins in the manufacturing of wood composites is the slow curing speed as well as inferior bondability of UF resin. The fast curing of UP and PF resins has been identified as an attractive process development that would allow wood to be bonded at higher moisture contents and at lower press temperatures that currently employed. Several differing additives have been developed to enhance cure rates of PF resins including the use of organic esters, lactones and organic carbonates. A model compound study by Conner, Lorenz and Hirth (2002) employed 2- and 4-hydroxymethylphenol with organic esters to examine the chemical basis for the reported enhanced reactivity. Their studies suggested that the enhance curing in the presence of esters could be due to enhanced quinone methide formation or enhanced intermolecular SN2 reactions. In either case the esters do not function as true catalysts as they are consumed in the reaction and were not found to be incorporated in the polymerized resin product. An alternative approach to accelerated PF curing can be accomplished with the addition amines or amides. The later functionality undergoes base catalyzed hydrolysis yielding the corresponding carboxyl ate and free amine which rapidly reacts with the phenolic methylol groups facilitating polymerization and curing of the PF resin (Pizzi, 1997).

Dr. Arthur J. Ragauskas

2006-04-26T23:59:59.000Z

312

Hexagonal-geometry fast-reactor nodal modeling  

Science Conference Proceedings (OSTI)

Several nodal methods have been developed for simulating power distributions in thermal reactors, and have been tested for applicability to fast reactor problems. The testing was performed in rectangular geometry. Since fast reactor configurations typically use hexagonal assemblies, the most promising of the techniques tested was extended to hexagonal geometry and applied to a range of test cases. The approach selected was the generalized coarse mesh procedure (GCMDT) using different interpolation parameters in different zones.

Caro, E.; Becker, M.

1982-01-01T23:59:59.000Z

313

Enhancing and Testing Fast Fault Screening (FFS) Methodology  

Science Conference Proceedings (OSTI)

The aim of this multi-year study is to develop a methodology for fast prediction of the most severe three-phase fault locations for transient stability studies and rank them in order of severity. The methodology is called Fast Fault Screening (FFS).  The key advantage of the FFS is the ability to quickly scan through thousands of potential fault locations from transient stability perspective and identify the most severe locations. In the previous efforts, FFS was developed for angular ...

2012-12-31T23:59:59.000Z

314

Polarization of fast particle beams by collisional pumping  

DOE Patents (OSTI)

The invention relates to method and apparatus for polarizing a fast beam of particles by collisional pumping, including generating a fast beam of particles, and generating a thick electron-spin-polarized medium positioned as a target for said beam, said medium being sufficiently thick to allow said beam to interact with said medium to produce collisional pumping whereby said particle beam becomes highly polarized.

Stearns, J.W.; Kaplan, S.N.; Pyle, R.V.; Anderson, L.W.; Schlachter, A.S.; Ruby, L.

1984-10-19T23:59:59.000Z

315

FastFit (FFit) Version 3.0  

Science Conference Proceedings (OSTI)

FastFit 3.0 is a substantial update of an EPRI software application that produces probabilistic market descriptions for analysts making decisions about energy portfolios. FastFit uses "Kahlman filtering" to analyze market history and current forward curves for the purpose of producing extended forward curves, volatility term structures, and correlation term structures. Description Energy market participants need forward curve, volatility, and correlation information to evaluate contract and physical asse...

2007-12-19T23:59:59.000Z

316

Charge exchange spectroscopy as a fast ion diagnostic on TEXTOR  

SciTech Connect

An upgraded charge exchange spectroscopy diagnostic has been taken into operation at the TEXTOR tokamak. The angles of the viewing lines with the toroidal magnetic field are close to the pitch angles at birth of fast ions injected by one of the neutral beam injectors. Using another neutral beam for active spectroscopy, injected counter the direction in which fast ions injected by the first beam are circulating, we can simultaneously measure a fast ion tail on the blue wing of the D{sub {alpha}} spectrum while the beam emission spectrum is Doppler shifted to the red wing. An analysis combining the two parts of the spectrum offers possibilities to improve the accuracy of the absolute (fast) ion density profiles. Fast beam modulation or passive viewing lines cannot be used for background subtraction on this diagnostic setup and therefore the background has to be modeled and fitted to the data together with a spectral model for the slowing down feature. The analysis of the fast ion D{sub {alpha}} spectrum obtained with the new diagnostic is discussed.

Delabie, E.; Jaspers, R. J. E.; Hellermann, M. G. von [FOM-Rijnhuizen, EURATOM-FOM, NL-3430 BE Nieuwegein (Netherlands); Nielsen, S. K. [Association EURATOM-Risoe National Laboratory for Sustainable Energy, Technical University of Denmark, DK-4000 Roskilde (Denmark); Marchuk, O. [Forschungszentrum Juelich, EURATOM-FZJ, D-52424 Juelich (Germany)

2008-10-15T23:59:59.000Z

317

Fast wave current drive system design for DIII-D  

SciTech Connect

DIII-D has a major effort underway to develop the physics and technology of fast wave electron heating and current drive in conjunction with electron cyclotron heating. The present system consists of a four strap antenna driven by one 2 MW transmitter in the 32--60 MHz band. Experiments have been successful in demonstrating the physics of heating and current drive. In order to validate fast wave current drive for future machines a greater power capability is necessary to drive all of the plasma current. Advanced tokamak modeling for DIII-D has indicated that this goal can be met for plasma configurations of interest (i.e. high [beta] VH-mode discharges) with 8 MW of transmitter fast wave capability. It is proposed that four transmitters drive fast wave antennas at three locations in DIII-D to provide the power for current drive and current profile modification. As the next step in acquiring this capability, two modular four strap antennas are in design and the procurement of a high power transmitter in the 30--120 MHz range is in progress. Additionally, innovations in the technology are being investigated, such as the use of a coupled combine antenna to reduce the number of required feedthroughs and to provide for parallel phase velocity variation with a relatively small change in frequency, and the use of fast ferrite tuners to provide millisecond timescale impedance matching. A successful test of a low power fast ferrite prototype was conducted on DIII-D.

deGrassie, J.S.; Callis, R.; Lin-Liu, Y.R.; Moeller, C..; Petty, C.C.; Phelps, D.R.; Pinsker, R.I.; Remsen, D. (General Atomics, San Diego, CA (United States)); Baity, F.W.; Hoffman, D.J.; Taylor, D.J. (Oak Ridge National Lab., TN (United States)); Arnold, W.; Martin, S. (ANT-Nachrichtentechnik GmbH, Backnang (Germany))

1992-09-01T23:59:59.000Z

318

Fast wave current drive system design for DIII-D  

SciTech Connect

DIII-D has a major effort underway to develop the physics and technology of fast wave electron heating and current drive in conjunction with electron cyclotron heating. The present system consists of a four strap antenna driven by one 2 MW transmitter in the 32--60 MHz band. Experiments have been successful in demonstrating the physics of heating and current drive. In order to validate fast wave current drive for future machines a greater power capability is necessary to drive all of the plasma current. Advanced tokamak modeling for DIII-D has indicated that this goal can be met for plasma configurations of interest (i.e. high {beta} VH-mode discharges) with 8 MW of transmitter fast wave capability. It is proposed that four transmitters drive fast wave antennas at three locations in DIII-D to provide the power for current drive and current profile modification. As the next step in acquiring this capability, two modular four strap antennas are in design and the procurement of a high power transmitter in the 30--120 MHz range is in progress. Additionally, innovations in the technology are being investigated, such as the use of a coupled combine antenna to reduce the number of required feedthroughs and to provide for parallel phase velocity variation with a relatively small change in frequency, and the use of fast ferrite tuners to provide millisecond timescale impedance matching. A successful test of a low power fast ferrite prototype was conducted on DIII-D.

deGrassie, J.S.; Callis, R.; Lin-Liu, Y.R.; Moeller, C..; Petty, C.C.; Phelps, D.R.; Pinsker, R.I.; Remsen, D. [General Atomics, San Diego, CA (United States); Baity, F.W.; Hoffman, D.J.; Taylor, D.J. [Oak Ridge National Lab., TN (United States); Arnold, W.; Martin, S. [ANT-Nachrichtentechnik GmbH, Backnang (Germany)

1992-09-01T23:59:59.000Z

319

Sodium fast reactor safety and licensing research plan. Volume II.  

SciTech Connect

Expert panels comprised of subject matter experts identified at the U.S. National Laboratories (SNL, ANL, INL, ORNL, LBL, and BNL), universities (University of Wisconsin and Ohio State University), international agencies (IRSN, CEA, JAEA, KAERI, and JRC-IE) and private consultation companies (Radiation Effects Consulting) were assembled to perform a gap analysis for sodium fast reactor licensing. Expert-opinion elicitation was performed to qualitatively assess the current state of sodium fast reactor technologies. Five independent gap analyses were performed resulting in the following topical reports: (1) Accident Initiators and Sequences (i.e., Initiators/Sequences Technology Gap Analysis), (2) Sodium Technology Phenomena (i.e., Advanced Burner Reactor Sodium Technology Gap Analysis), (3) Fuels and Materials (i.e., Sodium Fast Reactor Fuels and Materials: Research Needs), (4) Source Term Characterization (i.e., Advanced Sodium Fast Reactor Accident Source Terms: Research Needs), and (5) Computer Codes and Models (i.e., Sodium Fast Reactor Gaps Analysis of Computer Codes and Models for Accident Analysis and Reactor Safety). Volume II of the Sodium Research Plan consolidates the five gap analysis reports produced by each expert panel, wherein the importance of the identified phenomena and necessities of further experimental research and code development were addressed. The findings from these five reports comprised the basis for the analysis in Sodium Fast Reactor Research Plan Volume I.

Ludewig, H. (Brokhaven National Laboratory, Upton, NY); Powers, D. A.; Hewson, John C.; LaChance, Jeffrey L.; Wright, A. (Argonne National Laboratory, Argonne, IL); Phillips, J.; Zeyen, R. (Institute for Energy Petten, Saint-Paul-lez-Durance, France); Clement, B. (IRSN/DPAM.SEMIC Bt 702, Saint-Paul-lez-Durance, France); Garner, Frank (Radiation Effects Consulting, Richland, WA); Walters, Leon (Advanced Reactor Concepts, Los Alamos, NM); Wright, Steve; Ott, Larry J. (Oak Ridge National Laboratory, Oak Ridge, TN); Suo-Anttila, Ahti Jorma; Denning, Richard (Ohio State University, Columbus, OH); Ohshima, Hiroyuki (Japan Atomic Energy Agency, Ibaraki, Japan); Ohno, S. (Japan Atomic Energy Agency, Ibaraki, Japan); Miyhara, S. (Japan Atomic Energy Agency, Ibaraki, Japan); Yacout, Abdellatif (Argonne National Laboratory, Argonne, IL); Farmer, M. (Argonne National Laboratory, Argonne, IL); Wade, D. (Argonne National Laboratory, Argonne, IL); Grandy, C. (Argonne National Laboratory, Argonne, IL); Schmidt, R.; Cahalen, J. (Argonne National Laboratory, Argonne, IL); Olivier, Tara Jean; Budnitz, R. (Lawrence Berkeley National Laboratory, Berkeley, CA); Tobita, Yoshiharu (Japan Atomic Energy Agency, Ibaraki, Japan); Serre, Frederic (Centre d'%C3%94etudes nucl%C3%94eaires de Cadarache, Cea, France); Natesan, Ken (Argonne National Laboratory, Argonne, IL); Carbajo, Juan J. (Oak Ridge National Laboratory, Oak Ridge, TN); Jeong, Hae-Yong (Korea Atomic Energy Research Institute, Daejeon, Korea); Wigeland, Roald (Idaho National Laboratory, Idaho Falls, ID); Corradini, Michael (University of Wisconsin-Madison, Madison, WI); Thomas, Justin (Argonne National Laboratory, Argonne, IL); Wei, Tom (Argonne National Laboratory, Argonne, IL); Sofu, Tanju (Argonne National Laboratory, Argonne, IL); Flanagan, George F. (Oak Ridge National Laboratory, Oak Ridge, TN); Bari, R. (Brokhaven National Laboratory, Upton, NY); Porter D. (Idaho National Laboratory, Idaho Falls, ID); Lambert, J. (Argonne National Laboratory, Argonne, IL); Hayes, S. (Idaho National Laboratory, Idaho Falls, ID); Sackett, J. (Idaho National Laboratory, Idaho Falls, ID); Denman, Matthew R.

2012-05-01T23:59:59.000Z

320

Proliferation resistance for fast reactors and related fuel cycles: issues and impacts  

Science Conference Proceedings (OSTI)

The prospects for a dramatic growth in nuclear power may depend to a significant degree on the effectiveness of, and the resources devoted to, plans to develop and implement technologies and approaches that strengthen proliferation resistance and nuclear materials accountability. The challenges for fast reactors and related fuel cycles are especially critical. They are being explored in the Generation IV Tnternational Forum (GIF) and the Tnternational Atomic Energy Agency's (IAEA's) International Project on Innovative Nuclear Reactors and Fuel Cycles (INPRO) initiative, as well as by many states that are looking to these systems for the efficient lise of uranium resources and long-term energy security. How do any proliferation risks they may pose compare to other reactors, both existing and under development, and their fuel cycles? Can they be designed with intrinsic (technological) features to make these systems more proliferation resistant? What roles can extrinsic (institutional) features play in proliferation resistance? What are the anticipated safeguards requirements, and will new technologies and approaches need to be developed? How can safeguards be facilitated by the design process? These and other questions require a rethinking of proliferation resistance and the prospects for new technologies and other intrinsic and extrinsic features being developed that are responsive to specific issues for fast reactors and related fuel cycles and to the broader threat environment in which these systems will have to operate. There are no technologies that can wholly eliminate the risk of proliferation by a determined state, but technology and design can playa role in reducing state threats and perhaps in eliminating non-state threats. There will be a significant role for extrinsic factors, especially the various measures - from safeguards and physical protection to export controls - embodied in the international nuclear nonproliferation regime. This paper will offer an assessment of the issues surrounding, and the prospects for, efforts to develop proliferation resistance for fast reactors and related fuel cycles in the context of a nuclear renaissance. The focus of the analysis is on fast reactors.

Pilat, Joseph F [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

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321

Fast gas chromatographic separation of biodiesel.  

DOE Green Energy (OSTI)

A high-speed gas chromatographic method has been developed to determine the FAME distribution of B100 biodiesel. The capillary column used in this work has dimensions of 20 m x 0.100 mm and is coated with a polyethylene glycol film. Analysis times are typically on the order of 4-5 min depending upon the composition of the B100. The application of this method to a variety of vegetable and animal derived B100 is demonstrated. Quantitative results obtained with this method were in close agreement with those obtained by a more conventional approach on a 100 m column. The method, coupled with solid-phase extraction, was also found suitable to determine the B100 content of biodiesel-diesel blends.

Pauls, R. E. (Chemical Sciences and Engineering Division)

2011-05-01T23:59:59.000Z

322

Fast Flux Test Facility (FFTF) Briefing Book 1 Summary  

SciTech Connect

This report documents the results of evaluations preformed during 1997 to determine what, if an, future role the Fast Flux Test Facility (FFTF) might have in support of the Department of Energy’s tritium productions strategy. An evaluation was also conducted to assess the potential for the FFTF to produce medical isotopes. No safety, environmental, or technical issues associated with producing 1.5 kilograms of tritium per year in the FFTF have been identified that would change the previous evaluations by the Department of Energy, the JASON panel, or Putnam, Hayes & Bartlett. The FFTF can be refitted and restated by July 2002 for a total expenditure of $371 million, with an additional $64 million of startup expense necessary to incorporate the production of medical isotopes. Therapeutic and diagnostic applications of reactor-generated medical isotopes will increase dramatically over the next decade. Essential medical isotopes can be produced in the FFTF simultaneously with tritium production, and while a stand-alone medical isotope mission for the facility cannot be economically justified given current marker conditions, conservative estimates based on a report by Frost &Sullivan indicate that 60% of the annual operational costs (reactor and fuel supply) could be offset by revenues from medical isotope production within 10 yeas of restart. The recommendation of the report is for the Department of Energy to continue to maintain the FFTF in standby and proceed with preparation of appropriate Nations Environmental Policy Act documentation in full consultation with the public to consider the FFTF as an interim tritium production option (1.5 kilograms/year) with a secondary mission of producing medical isotopes.

WJ Apley

1997-12-01T23:59:59.000Z

323

Feasibility study on using fast calorimetry technique to measure a mass attribute as part of a treaty verification regime  

Science Conference Proceedings (OSTI)

The attribute measurement technique provides a method for determining whether or not an item containing special nuclear material (SNM) possesses attributes that fall within an agreed upon range of values. One potential attribute is whether the mass of an SNM item is larger than some threshold value that has been negotiated as part of a nonproliferation treaty. While the historical focus on measuring mass attributes has been on using neutron measurements, calorimetry measurements may be a viable alternative for measuring mass attributes for plutonium-bearing items. Traditionally, calorimetry measurements have provided a highly precise and accurate determination of the thermal power that is being generated by an item. In order to achieve this high level of precision and accuracy, the item must reach thermal equilibrium inside the calorimeter prior to determining the thermal power of the item. Because the approach to thermal equilibrium is exponential in nature, a large portion of the time spent approaching equilibrium is spent with the measurement being within {approx}10% of its final equilibrium value inside the calorimeter. Since a mass attribute measurement only needs to positively determine if the mass of a given SNM item is greater than a threshold value, performing a short calorimetry measurement to determine how the system is approaching thermal equilibrium may provide sufficient information to determine if an item has a larger mass than the agreed upon threshold. In previous research into a fast calorimetry attribute technique, a two-dimensional heat flow model of a calorimeter was used to investigate the possibility of determining a mass attribute for plutonium-bearing items using this technique. While the results of this study looked favorable for developing a fast calorimetry attribute technique, additional work was needed to determine the accuracy of the model used to make the calculations. In this paper, the results from the current work investigating the fast calorimetry attribute technique will be presented.

Hauck, Danielle K [Los Alamos National Laboratory; Bracken, David S [Los Alamos National Laboratory; Mac Arthur, Duncan W [Los Alamos National Laboratory; Santi, Peter A [Los Alamos National Laboratory; Thron, Jonathan [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

324

Design Considerations of Fast-cycling Synchrotrons Based on Superconducting Transmission Line Magnets  

E-Print Network (OSTI)

Design Considerations of Fast-cycling Synchrotrons Based on Superconducting Transmission Line Magnets

Piekarz, H; Huang, Y; Shiltsev, V

2008-01-01T23:59:59.000Z

325

Fast Reactor Fuel Type and Reactor Safety Performance  

Science Conference Proceedings (OSTI)

Fast Reactor Fuel Type and Reactor Safety Performance R. Wigeland , Idaho National Laboratory J. Cahalan, Argonne National Laboratory The sodium-cooled fast neutron reactor is currently being evaluated for the efficient transmutation of the highly-hazardous, long-lived, transuranic elements that are present in spent nuclear fuel. One of the fundamental choices that will be made is the selection of the fuel type for the fast reactor, whether oxide, metal, carbide, nitride, etc. It is likely that a decision on the fuel type will need to be made before many of the related technologies and facilities can be selected, from fuel fabrication to spent fuel reprocessing. A decision on fuel type should consider all impacts on the fast reactor system, including safety. Past work has demonstrated that the choice of fuel type may have a significant impact on the severity of consequences arising from accidents, especially for severe accidents of low probability. In this paper, the response of sodium-cooled fast reactors is discussed for both oxide and metal fuel types, highlighting the similarities and differences in reactor response and accident consequences. Any fast reactor facility must be designed to be able to successfully prevent, mitigate, or accommodate all consequences of potential events, including accidents. This is typically accomplished by using multiple barriers to the release of radiation, including the cladding on the fuel, the intact primary cooling system, and most visibly the reactor containment building. More recently, this has also included the use of ‘inherent safety’ concepts to reduce or eliminate the potential for serious damage in some cases. Past experience with oxide and metal fuel has demonstrated that both fuel types are suitable for use as fuel in a sodium-cooled fast reactor. However, safety analyses for these two fuel types have also shown that there can be substantial differences in accident consequences due to the neutronic and thermophysical properties of the fuel and their compatibility with the reactor coolant, with corresponding differences in the challenges presented to the reactor developers. Accident phenomena are discussed for the sodium-cooled fast reactor based on the mechanistic progression of conditions from accident initiation to accident termination, whether a benign state is achieved or more severe consequences are expected. General principles connecting accident phenomena and fuel properties are developed from the oxide and metal fuel safety analyses, providing guidelines that can be used as part of the evaluation for selection of fuel type for the sodium-cooled fast reactor.

R. Wigeland; J. Cahalan

2009-09-01T23:59:59.000Z

326

New Developments for the NWTC's FAST Aeroelastic HAWT Simulator: Preprint  

DOE Green Energy (OSTI)

Discrepancies in response predictions among FAST, ADAMS, and other industry-accepted wind turbine analysis codes led the National Renewable Energy Laboratory to dedicate significant time and effort to overhauling its FAST aeroelastic horizontal-axis wind turbine simulator. Included in the overhaul were improvements to the system dynamics models and upgrades in functionality. Improvements were made to the drive train dynamics models, output processing algorithms, tower and blade deflection characterizations, and other models. New features include an enhanced input/output environment, aeroacoustic noise prediction algorithms, periodic linearization routines for controls design, as well as a preprocessing utility that enables FAST to generate ADAMS datasets of wind turbine models. In order to verify that the new features and improved models included in the upgraded FAST were correct, verification tests were run against ADAMS. Comparisons of response predictions between the codes, in general, show excellent agreement. Regions where the different response predictions do not exactly coalesce are attributable to differences in the modeling techniques. This work has culminated in an upgraded version of FAST, equipped with more functionality, that predicts more accurate wind turbine responses than previous versions.

Jonkman, J. M.; Buhl, M. L., Jr.

2003-10-01T23:59:59.000Z

327

FastMeasure Distance Measuring Tools | Open Energy Information  

Open Energy Info (EERE)

FastMeasure Distance Measuring Tools FastMeasure Distance Measuring Tools Jump to: navigation, search Logo: FastMeasure Distance Measuring Tools Name FastMeasure Distance Measuring Tools Address 2890 Cherokee Lane Place Riverwoods, Illinois Zip 60015 Sector Vehicles Product Distance Measuring Instrument Year founded 2008 Number of employees 11-50 Phone number (888) 876-6050 Website http://www.fast-measure.com Coordinates 42.181686°, -87.898862° 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":42.181686,"lon":-87.898862,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

328

Nuclear diagnostic for fast alpha particles  

DOE Patents (OSTI)

Measurement of the velocity distribution of confined energetic alpha particles resulting from deuterium-tritium fusion reactions in a magnetically contained plasma is provided. The fusion plasma is seeded with energetic boron neutrals for producing, by means of the reaction .sup.10 B (.alpha.,n) .sup.13 N reaction, radioactive nitrogen nuclei which are then collected by a probe. The radioactivity of the probe is then measured by conventional techniques in determining the energy distribution of the alpha particles in the plasma. In a preferred embodiment, diborane gas (B.sub.2 H.sub.6) is the source of the boron neutrals to produce .sup.13 N which decays almost exclusively by positron emission with a convenient half-life of 10 minutes.

Grisham, Larry R. (Lawrence Township, Mercer County, NJ); Post, Jr., Douglass E. (Belle Mead, NJ); Dawson, John M. (Pacific Palisades, CA)

1986-01-01T23:59:59.000Z

329

FastMath SciDAC Institute | Argonne National Laboratory  

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

FastMath SciDAC Institute FastMath SciDAC Institute FastMath SciDAC Institute The FASTMath SciDAC Institute is developing and deploying scalable mathematical algorithms and software tools for reliable simulation of complex physical phenomena and collaborating with U.S. Department of Energy (DOE)domain scientists to ensure the usefulness and applicability of our work. The focus of ourwork is strongly driven by the requirements of DOE application scientists who work extensively with mesh-based, continuum-level models or particle-based techniques. Project Contact Lois Curfman McInnes Barry Smith Todd Munson Mihai Anitescu People Involved Jed Brown Tim Tautges Other Contributors Ann Almgren (LBNL) Phil Colella Mark Shephard (RPI) Daniel Reynolds (SMU) Related Group(s) Applied Mathematics Website URL

330

70 MPa Fast-Fill Modeling and Validation Experiments  

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

0 MPa Fast-Fill Modeling & 0 MPa Fast-Fill Modeling & Validation Experiments Bill Winters Thermal/Fluid Sci. & Eng. Dept. 8365 DOE Tank Safety Workshop April 29, 2010 SAND Number: 2010-2830 P Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Sandia modeling and validation methods can be applied to the 70 MPa Fast Fill Problem * Multi year effort to understand flow and heat transfer in compressed gas storage systems - Vessel Blowdown (supplies) - Vessel Fillup (receivers) - Interconnecting systems of tubes, valves and flow branches * Network flow modeling capability - we have developed dedicated

331

Fast pandemic detection tool ready to fight flu  

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

Fast pandemic detection tool ready to fight flu Fast pandemic detection tool ready to fight flu Fast pandemic detection tool ready to fight flu Researchers are developing new tools for rapidly characterizing biological pathogens that could give rise to potentially deadly pandemics such as Influenza A (H1N1). June 9, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

332

FOAM: Fast Ocean Atmosphere Model | Argonne National Laboratory  

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

FOAM: Fast Ocean Atmosphere Model FOAM: Fast Ocean Atmosphere Model FOAM: Fast Ocean Atmosphere Model FOAM is a fully coupled, mixed-resolution, general circulation model designed for high-throughput (simulated years per day) while still providing a good simulated mean climate and simulated variability. FOAM uses the combination of a low resolution (R15) atmosphere model, a highly efficient medium-resolution ocean model, and distributed memory parallel processing to achieve high throughput on relatively modest numbers of processors (16-64). The quality of the simulated climate compares well with higher resolution models. No flux corrections are used. FOAM's intended purpose is to study long-term natural variability in the climate system. FOAM is also well suited for paleoclimate applications. FOAM is highly

333

Methods for performing fast discrete curvelet transforms of data  

DOE Patents (OSTI)

Fast digital implementations of the second generation curvelet transform for use in data processing are disclosed. One such digital transformation is based on unequally-spaced fast Fourier transforms (USFFT) while another is based on the wrapping of specially selected Fourier samples. Both digital transformations return a table of digital curvelet coefficients indexed by a scale parameter, an orientation parameter, and a spatial location parameter. Both implementations are fast in the sense that they run in about O(n.sup.2 log n) flops for n by n Cartesian arrays or about O(N log N) flops for Cartesian arrays of size N=n.sup.3; in addition, they are also invertible, with rapid inversion algorithms of about the same complexity.

Candes, Emmanuel (Los Angeles, CA); Donoho, David (Setauket, NY); Demanet, Laurent (Pasadena, CA)

2010-11-23T23:59:59.000Z

334

Fast Neutron Detector for Fusion Reactor KSTAR Using Stilbene Scintillator  

E-Print Network (OSTI)

Various neutron diagnostic tools are used in fusion reactors to evaluate different aspects of plasma performance, such as fusion power, power density, ion temperature, fast ion energy, and their spatial distributions. The stilbene scintillator has been proposed for use as a neutron diagnostic system to measure the characteristics of neutrons from the Korea Superconducting Tokamak Advanced Research (KSTAR) fusion reactor. Specially designed electronics are necessary to measure fast neutron spectra with high radiation from a gamma-ray background. The signals from neutrons and gamma-rays are discriminated by the digital charge pulse shape discrimination (PSD) method, which uses total to partial charge ratio analysis. The signals are digitized by a flash analog-to-digital convertor (FADC). To evaluate the performance of the fabricated stilbene neutron diagnostic system, the efficiency of 10 mm soft-iron magnetic shielding and the detection efficiency of fast neutrons were tested experimentally using a 252Cf neutr...

Lee, Seung Kyu; Kim, Gi-Dong; Kim, Yong-Kyun

2011-01-01T23:59:59.000Z

335

Simulator platform for fast reactor operation and safety technology demonstration  

SciTech Connect

A simulator platform for visualization and demonstration of innovative concepts in fast reactor technology is described. The objective is to make more accessible the workings of fast reactor technology innovations and to do so in a human factors environment that uses state-of-the art visualization technologies. In this work the computer codes in use at Argonne National Laboratory (ANL) for the design of fast reactor systems are being integrated to run on this platform. This includes linking reactor systems codes with mechanical structures codes and using advanced graphics to depict the thermo-hydraulic-structure interactions that give rise to an inherently safe response to upsets. It also includes visualization of mechanical systems operation including advanced concepts that make use of robotics for operations, in-service inspection, and maintenance.

Vilim, R. B.; Park, Y. S.; Grandy, C.; Belch, H.; Dworzanski, P.; Misterka, J. (Nuclear Engineering Division)

2012-07-30T23:59:59.000Z

336

All-sky astrophysical component separation with Fast Independent Component Analysis (FastICA  

E-Print Network (OSTI)

We present a new, fast, algorithm for the separation of astrophysical components superposed in maps of the sky. The algorithm, based on the Independent Component Analysis (ICA) technique, is aimed at recovering both the spatial pattern and the frequency scalings of the emissions from statistically independent astrophysical processes, present along the line-of-sight, from multi-frequency observations, without any a priori assumption on properties of the components to be separated, except that all of them, but at most one, must have non-Gaussian distributions. The analysis starts from very simple toy-models of the sky emission in order to assess the quality of the reconstruction when inputs are well known and controlled. In particular we study the dependence of the results of separation conducted on and off the Galactic plane independently, showing that optimal separation is achieved for sky regions where components are smoothly distributed. Then we move to more realistic applications on simulated observations of the microwave sky with angular resolution and instrumental noise at the mean nominal

D. Maino; A. Farusi; C. Baccigalupi; F. Perrotta; L. Bedini

2002-01-01T23:59:59.000Z

337

A DESCRIPTION OF INTEGRAL PHYSICS DATA FOR FAST REACTOR DESIGN  

SciTech Connect

Integral physics data for fast reactor design are discussed. The measurements needed include those of critical mass, shape factor, detector ratios, neutron spectra, material replacement experiments, reflector savings, neutron lifetime, Rossi- alpha , and similar quantities. Topics covered include Pu- and U/sup 233/-fueled systems, highly enriched U/sup 235/ systems in optimum geometry, uranium cores of various enrichments and dilutions, extreme geometry critical experiments, specific reactor systems, core mockup inhomogeneities, spectral studies and detector ratios, uranium equilibrium spectrum data, materialreplacement measurements, fast reactor dynamics, and suggested future experiments and experimental programs. (M.C.G.)

Loewenstein, W.B.; Meneghetti, D.

1961-07-01T23:59:59.000Z

338

A Performance Modeling and Evaluation of the Cambridge Fast Ring  

Science Conference Proceedings (OSTI)

Performance of the Cambridge Fast Ring (CFR), a high-speed slotted ring with normal slots, is studied. It is shown that the CFR can be represented by a multiqueue multiple cyclic server model with a 1-limited service discipline and with a restriction ... Keywords: 1-limited service discipline, Cambridge Fast Ring, approximate analytic M/G/1 vacation model, exact necessary and sufficient stability conditions, high-speed slotted ring, local area networks, message waiting times, multiqueue multiple cyclic server model, normal slots, performance evaluation, performance modeling, queueing theory., vacation period

Mirjana Zafirovic-Vukotic; Ignas G. Niemegeers

1992-09-01T23:59:59.000Z

339

Fast Magnetic Reconnection in Laser-Produced Plasma Bubbles  

SciTech Connect

Recent experiments have observed magnetic reconnection in high-energy-density, laser-produced plasma bubbles, with reconnection rates observed to be much higher than can be explained by classical theory. Based on fully kinetic particle simulations we find that fast reconnection in these strongly driven systems can be explained by magnetic flux pileup at the shoulder of the current sheet and subsequent fast reconnection via two-fluid, collisionless mechanisms. In the strong drive regime with two-fluid effects, we find that the ultimate reconnection time is insensitive to the nominal system Alfven time.

Fox, W.; Bhattacharjee, A.; Germaschewski, K. [Center for Integrated Computation and Analysis of Reconnection and Turbulence, and Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of New Hampshire, Durham, New Hampshire 03824 (United States)

2011-05-27T23:59:59.000Z

340

CONCEPTUAL DESIGN REPORT FOR A FAST MUON TRIGGER  

SciTech Connect

This document is a Conceptual Design Report for a fast muon trigger for the PHENIX experiment that will enable the study of flavor separated quark and anti-quark spin polarizations in the proton. A powerful way of measuring these polarizations is via single spin asymmetries for W boson production in polarized proton-proton reactions. The measurement is done by tagging W{sup +} and W{sup -} via their decay into high transverse momentum leptons in the forward directions. The PHENIX experiment is capable of measuring high momentum muons at forward rapidity, but the current online trigger does not have sufficient rejection to sample the rare leptons fromW decay at the highest luminosities at the Relativistic Heavy Ion Collider (RHIC). This Report details the goals, design, R&D, and schedule for building new detectors and trigger electronics to use the full RHIC luminosity to make this critical measurement. The idea for W boson measurements in polarized proton-proton collisions at RHIC was first suggested by Jacques Soffer and Claude Bourrely in 1995. This prompted the RIKEN institute in Japan to supply funds to build a second muon arm for PHENIX (south muon arm). The existence of both a north and south muon arm makes it possible to utilize a Z{sup 0} sample to study and control systematic uncertainties which arise in the reconstruction of high momentum muons. This document has its origins in recommendations made by a NSAC Subcommittee that reviewed the U.S. Heavy Ion Physics Program in June 2004. Part of their Recommendation 1 was to 'Invest in near-term detector upgrades of the two large experiments, PHENIX and STAR'. In Recommendation 2 the subcommittee stated '- detector improvements proceed at a rate that allows a timely determination of the flavor dependence of the quark-antiquark sea polarization through W-asymmetry measurements' as we are proposing here. On September 13, 2004 DOE requested from BNL a report articulating a research plan for the RHIC spin physics program. The document was submitted to DOE on January 31, 2005. It pointed out that one of three top priorities for the program lies in the clean and elegant measurement of the quark and anti-quark polarizations sorted by quark flavor through the parity-violating production of W bosons.

OBRIEN,E.; BASYE, A.; ISENHOWER, D.; JUMPER, D.; SPARKS, N.; TOWELL, R.; WATTS, C.; WOOD, J.; WRIGHT, R.; HAGGERTY, J.; LYNCH, D.; BARISH, K.; EYSER, K.O.; SETO, R.; HU, S.; LI, X.; ZHOU, S.; GLENN, A.; KINNEY, E.; KIRILUK, K.; NAGLE, J.; CHI, C.Y.; SIPPACH, W.; ZAJC. W.; BUTLER, C.; HE, X.; OAKLEY, C.; YING, J.; BLACKBURN, J.; CHIU, M.; PERDEKAMP, M.G.; KIM, Y.J.; KOSTER, J.; LAYTON, D.; MAKINS, N.; MEREDITH, B.; NORTHACKER, D.; PENG, J.-C.; SEIDL, R.; THORSLAND, E.; WADHAMS, S.; WILLIAMSON, S.; YANG, R.; HILL, J.; KEMPEL, T.; LAJOIE, J.; SLEEGE, G.; VALE, C.; WEI, F.; SAITO, N.; HONG, B.; KIM, B.; LEE, K.; LEE, K.S.; PARK, S.; SIM, K.-S.; AOKI, K.; DAIRAKU, S.; IMAI, K.; KARATSU, K.; MURAKAMI, T.; SATO, A.; SENZAKA, K.; SHOJI, K.; TANIDA, K.; BROOKS, M.; LEITCH, M.; ADAMS, J.; CARINGI, A.; FADEM, B.; IDE, J.; LICHTENWALNER, P.; FIELDS, D.; MAO, Y.; HAN, R.; BUNCE, G.; XIE, W.; FUKAO, Y.; TAKETANI, A.; KURITA, K.; MURATA, J.; (PHENIX COLLABORATION)

2007-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

CX-009200: Categorical Exclusion Determination  

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

Respond to the Town of Eatonville’s Land Use Review Request (LURR) CX(s) Applied: B4.7 Date: 09/19/2012 Location(s): Washington Offices(s): Bonneville Power Administration

342

Fast nonconvex nonsmooth minimization methods for image restoration and reconstruction  

Science Conference Proceedings (OSTI)

Nonconvex nonsmooth regularization has advantages over convex regularization for restoring images with neat edges. However, its practical interest used to be limited by the difficulty of the computational stage which requires a nonconvex nonsmooth minimization. ... Keywords: continuation methods, fast fourier transform, global minimization, image reconstruction, image restoration, nonconvex nonsmooth, nonconvex nonsmooth regularization, total variation.

Mila Nikolova; Michael K. Ng; Chi-Pan Tam

2010-12-01T23:59:59.000Z

343

A uniformly second order fast sweeping method for eikonal equations  

Science Conference Proceedings (OSTI)

A uniformly second order method with a local solver based on the piecewise linear discontinuous Galerkin formulation is introduced to solve the eikonal equation with Dirichlet boundary conditions. The method utilizes an interesting phenomenon, referred ... Keywords: Discontinuous Galerkin method, Eikonal equations, Fast sweeping method, Superconvergence, Uniformly second order

Songting Luo

2013-05-01T23:59:59.000Z

344

Fast ion behavior during neutral beam injection in ATF  

SciTech Connect

In stellarators, single-particle confinement properties can be more complex than in their tokamak counterparts. Fast-ion behavior in tokamaks has been well characterized through an abundance of measurements on various devices and in general has been shown to be consistent with classical slowing-down theory, although anomalous ion behavior has been observed during intense beam injection in ISX-B, during fishbone instabilities in PDX, and in experiments on TFR. In contrast, fast ion behavior in stellarators is not as wel established experimentally with the primary experiments to date focusing o near-perpendicular or perpendicular neutral beam injection (NBI) on the Wendelstein 7-A stellarator (91 and Heliotron-E. This paper addresses fast-ion confinement properties in a large-aspect-ratio, moderate-shear stellarator, the Advanced Toroidal Facility, during tangential NBI. The primary data used in this study are the experimentally measured energy spectra of charge-exchange neutrals escaping from the plasma, using a two-dimensional scanning neutral particle analyzer. This diagnostic method is well established, having been used on several devices since the early 1970`s. Various aspects of fast-ion behavior are investigated by comparing these data with computed theoretical spectra based on energeticion distributions derived from the fastion Fokker-Planck equation. Ion orbits are studied by computer orbit following, by the computation of J* surfaces, and by Monte Carlo calculations.

Wade, M.R.; Thomas, C.E.; Colchin, R.J.; Rome, J.A.; England, A.C.; Fowler, R.H. [Oak Ridge National Lab., TN (United States); Aceto, S.C. [Rensselaer Polytechnic Inst., Troy, NY (United States)

1993-09-01T23:59:59.000Z

345

Integral Fast Reactor Program. Annual progress report, FY 1993  

Science Conference Proceedings (OSTI)

This report summarizes highlights of the technical progress made in the Integral Fast Reactor (IFR) Program in FY 1993. Technical accomplishments are presented in the following areas of the IFR technology development activities: (1) metal fuel performance, (2) pyroprocess development, (3) safety experiments and analyses, (4) core design development, (5) fuel cycle demonstration, and (6) LMR technology R and D.

Chang, Y.I.; Walters, L.C.; Laidler, J.J.; Pedersen, D.R.; Wade, D.C.; Lineberry, M.J.

1994-10-01T23:59:59.000Z

346

Integral Fast Reactor Program annual progress report, FY 1994  

Science Conference Proceedings (OSTI)

This report summarizes highlights of the technical progress made in the Integral Fast Reactor (IFR) Program in FY 1994. Technical accomplishments are presented in the following areas of the IFR technology development activities: metal fuel performance; pyroprocess development; safety experiments and analyses; core design development; fuel cycle demonstration; and LMR technology R&D.

Chang, Y.I.; Walters, L.C.; Laidler, J.J.; Pedersen, D.R.; Wade, D.C.; Lineberry, J.J.

1994-12-01T23:59:59.000Z

347

Fast Verification of Wind Turbine Power Summary of Project Results  

E-Print Network (OSTI)

a wind turbine's design phase, the power curve can be predicted using analytical techniques such as Blade using a single cup anemometer at the wind turbine's hub height and it is assumed that this measurementFast Verification of Wind Turbine Power Curves: Summary of Project Results by: Cameron Brown ­ s

348

Fast compression of transportable Tcl agents Robert S. Gray  

E-Print Network (OSTI)

Fast compression of transportable Tcl agents Robert S. Gray Department of Computer Science implemented a transportable agent system that uses the Tool Command Language (Tcl) as the agent language. Each Tcl script can suspend its execution at an arbitrary point, transport itself to another machine

349

CREEP RUPTURE IN THE PRESENCE OF A FAST NEUTRON FLUX  

SciTech Connect

Possible mechanisms for creep rupture during irradiation are examined. Evidence that the rupture occurs by grain boundary sliding alone, or by vacancy condensation, is compared. It is observed that vacancy condensation is the more probable mechanism, and that this mechanism predicts a reduction in creep rupture life for metals exposed to a fast neutron flux (neglecting effects of radiation annealing). (T.F.H.)

Gregory, D.P.

1959-01-14T23:59:59.000Z

350

Minimum Energy Ventilation for Fast Food Restaurant Kitchens  

Science Conference Proceedings (OSTI)

Cooking equipment exhaust systems have a significant impact on the energy consumption of fast food restaurants. This research investigated issues that relate to the energy performance of commercial kitchen ventilation systems and demonstrated that significant energy and cost savings can be achieved by reducing ventilation rates.

1996-10-30T23:59:59.000Z

351

Ex-Situ Catalytic Fast Pyrolysis Technology Pathway  

DOE Green Energy (OSTI)

This technology pathway case investigates converting woody biomass using ex-situ catalytic fast pyrolysis followed by upgrading to gasoline-, diesel-, and jet-range hydrocarbon blendstocks. Technical barriers and key research needs that should be pursued for this pathway to be competitive with petroleum-derived blendstocks have been identified.

Biddy, M.; Dutta, A.; Jones, S.; Meyer, A.

2013-03-01T23:59:59.000Z

352

In-Situ Catalytic Fast Pyrolysis Technology Pathway  

DOE Green Energy (OSTI)

This technology pathway case investigates converting woody biomass using in-situ catalytic fast pyrolysis followed by upgrading to gasoline-, diesel-, and jet-range hydrocarbon blendstocks. Technical barriers and key research needs that should be pursued for this pathway to be competitive with petroleum-derived blendstocks have been identified.

Biddy, M.; Dutta, A.; Jones, S.; Meyer, A.

2013-03-01T23:59:59.000Z

353

Fast computation of geometric moments using a symmetric kernel  

Science Conference Proceedings (OSTI)

This paper presents a novel set of geometric moments with symmetric kernel (SGM) obtained using an appropriate transformation of image coordinates. By using this image transformation, the computational complexity of geometric moments (GM) is reduced ... Keywords: Computation, Efficient representation, Fast computation, Geometric moments with symmetric kernel (SGM), Invariant properties, Numerical instability, Symmetrical property, Zernike moments

Chong-Yaw Wee; Raveendran Paramesran; R. Mukundan

2008-07-01T23:59:59.000Z

354

FastTrack: efficient and precise dynamic race detection  

Science Conference Proceedings (OSTI)

\\begin{abstract} Multithreaded programs are notoriously prone to race conditions. Prior work on dynamic race detectors includes fast but imprecise race detectors that report false alarms, as well as slow but precise race detectors that never report false ... Keywords: concurrency, dynamic analysis, race conditions

Cormac Flanagan; Stephen N. Freund

2009-06-01T23:59:59.000Z

355

Integral Fast Reactor Program. Annual progress report, FY 1992  

Science Conference Proceedings (OSTI)

This report summarizes highlights of the technical progress made in the Integral Fast Reactor (IFR) Program in FY 1992. Technical accomplishments are presented in the following areas of the IFR technology development activities: (1) metal fuel performance, (2) pyroprocess development, (3) safety experiments and analyses, (4) core design development, (5) fuel cycle demonstration, and (6) LMR technology R&D.

Chang, Y.I.; Walters, L.C.; Laidler, J.J.; Pedersen, D.R.; Wade, D.C.; Lineberry, M.J.

1993-06-01T23:59:59.000Z

356

Fast data acquisition in cost-sensitive learning  

Science Conference Proceedings (OSTI)

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

Victor S. Sheng

2011-08-01T23:59:59.000Z

357

MATLAB tensor classes for fast algorithm prototyping : source code.  

Science Conference Proceedings (OSTI)

We present the source code for three MATLAB classes for manipulating tensors in order to allow fast algorithm prototyping. A tensor is a multidimensional or Nway array. This is a supplementary report; details on using this code are provided separately in SAND-XXXX.

Bader, Brett William; Kolda, Tamara Gibson (Sandia National Laboratories, Livermore, CA)

2004-10-01T23:59:59.000Z

358

Physical conditions for fast reconnection evolution in space plasmas  

Science Conference Proceedings (OSTI)

The present paper studies physical conditions for fast reconnection mechanism involving slow shocks to evolve spontaneously in space (high-temperature) plasmas. This is fundamental for onset mechanisms of geomagnetic substorms and solar flares. It is demonstrated that reconnection evolution strongly depends on effective resistivity available in space plasmas as well as on dimensions of initial current sheet. If a current sheet is sufficiently thin, fast reconnection spontaneously evolves only when resistivity is locally enhanced around X reconnection point. This is because in space plasmas reconnection flows cause vital current concentration locally around X point. For current-driven anomalous resistivity, the resulting resistivity is automatically localized around X point, so fast reconnection mechanism can be realized. On the other hand, for uniform or Spitzer resistivity, any fast reconnection cannot grow; in particular, Spitzer resistivity is reduced around X point because of Joule heating. Regarding reconnection simulations (either fluid or particle), unless numerical resistivities are made negligibly small, they seriously mask the effects of physical resistivity, leading to a misleading conclusion that reconnection evolution is little influenced by plasma resistivity.

Ugai, M. [Research Center for Space and Cosmic Evolution, Ehime University, Matsuyama 790-8577 (Japan)

2012-07-15T23:59:59.000Z

359

Fast extremum-seeking for Wiener-Hammerstein plants  

Science Conference Proceedings (OSTI)

This paper considers an observer-based extremum-seeking (ES) scheme acting on a Wiener-Hammerstein (WH) plant. The ES scheme utilises a high-frequency sinusoidal dither in order to achieve fast minimisation of the plant's static nonlinearity. Unlike ... Keywords: Adaptive control, Convergence speed, Extremum-seeking, Nonlinear control systems, Optimisation

W. H. Moase; C. Manzie

2012-10-01T23:59:59.000Z

360

A Shape Descriptor for Fast Complementarity Matching in Molecular Docking  

Science Conference Proceedings (OSTI)

This paper presents a novel approach for fast rigid docking of proteins based on geometric complementarity. After extraction of the 3D molecular surface, a set of local surface patches is generated based on the local surface curvature. The shape complementarity ... Keywords: Protein docking, rigid body, geometric complementarity, shape impact descriptor.

Apostolos Axenopoulos; Petros Daras; Georgios Papadopoulos; Elias Houstis

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Relativistic Laser Plasma Research for Fast Ignition Laser Fusion  

E-Print Network (OSTI)

Reviewed are the present status and future prospects of the laser fusion research at the ILE (Institute of Laser Engineering) Osaka. The Gekko XII and Peta Watt laser system have been operated for investigating the fast ignition, the relativistic laser plasma interactions and so on. In particular, the fast ignition experiments with cone shell target have been in progress as the UK and US-Japan collaboration programs. In the experiments, the imploded high density plasmas are heated by irradiating 500 J level peta watt laser pulse. The thermal neutron yield is found to increase by three orders of magnitude by injecting the peta watt laser into the cone shell target. Transport of relativistic high density electron is the critical issue as the basic physics for understanding the dense plasma heating process. By the theory, simulation and experiment, the collective phenomena in the interactions of intense relativistic electron current with dense plasmas has been investigated to find the formation of self organized flow as the result of filamentation (Weibel) instability. Through the present understanding, the new project, FIREX-I has started recently to prove the principle of the fast ignition scheme. Keywords: fast ignition, peta watt laser, relativistic electron, weibel instability

Mima Kunioki; Tanaka Kazuo. A; Kodama Ryosuke; Johzaki Tomohiro; Nagatomo Hideo; Shiraga Hiroyuki; Miyanaga Noriaki; Azechi Hiroshi; Nakai Mitsuo; Norimatsu Takayoshi; Nagai Keiji; Sunahara Atsushi; Nishihara Katsunobu; Taguchi Toshihiro; Sakagami Hitoshi; Sentoku Yasuhiko; Ruhl Hartmut

2003-01-01T23:59:59.000Z

362

Novel Approach for fast Compressed Hybrid color image Cryptosystem  

Science Conference Proceedings (OSTI)

In this Paper, the issues pertaining with efficient, fast, cost effective and secured image transmission are addressed in totality. The proposed model employs Compressed Hybrid Cryptosystem constitutes compression, encryption and secured session key ... Keywords: Cat map, Chaotic map, Curvelet transform, ECDLP, Elliptic Curve Cryptography, Standard map

Kamlesh Gupta; Sanjay Silakari

2012-07-01T23:59:59.000Z

363

Fast Neutron Detector for Fusion Reactor KSTAR Using Stilbene Scintillator  

E-Print Network (OSTI)

Various neutron diagnostic tools are used in fusion reactors to evaluate different aspects of plasma performance, such as fusion power, power density, ion temperature, fast ion energy, and their spatial distributions. The stilbene scintillator has been proposed for use as a neutron diagnostic system to measure the characteristics of neutrons from the Korea Superconducting Tokamak Advanced Research (KSTAR) fusion reactor. Specially designed electronics are necessary to measure fast neutron spectra with high radiation from a gamma-ray background. The signals from neutrons and gamma-rays are discriminated by the digital charge pulse shape discrimination (PSD) method, which uses total to partial charge ratio analysis. The signals are digitized by a flash analog-to-digital convertor (FADC). To evaluate the performance of the fabricated stilbene neutron diagnostic system, the efficiency of 10 mm soft-iron magnetic shielding and the detection efficiency of fast neutrons were tested experimentally using a 252Cf neutron source. In the results, the designed and fabricated stilbene neutron diagnostic system performed well in discriminating neutrons from gamma-rays under the high magnetic field conditions during KSTAR operation. Fast neutrons of 2.45 MeV were effectively measured and evaluated during the 2011 KSTAR campaign.

Seung Kyu Lee; Byoung-Hwi Kang; Gi-Dong Kim; Yong-Kyun Kim

2011-12-27T23:59:59.000Z

364

Observations of Wind-Generated Waves in Antarctic Fast Ice  

Science Conference Proceedings (OSTI)

Observations of naturally induced propagating waves in the fast ice cover of McMurdo Sound, Antarctica, were made during the austral winter of 1986 with a rosette of three wire strainmeters. The data, collected over a seven-month period and ...

G. B. Crocker; P. Wadhams

1988-09-01T23:59:59.000Z

365

Dynamic pricing? Not so fast. a residential consumer perspective  

Science Conference Proceedings (OSTI)

With the installation of smart metering, will residential customers be moved to ''dynamic'' pricing? Some supporters of changing residential rate design from a fixed and stable rate structure believe customers should be required to take electric service with time-variant price signals. Not so fast, though. There are real implications associated with this strategy. (author)

Alexander, Barbara R.

2010-07-15T23:59:59.000Z

366

Mixing Fast Trains on Freight Rail Corridors presented by  

E-Print Network (OSTI)

Mixing Fast Trains on Freight Rail Corridors presented by: Minnesota Department of Transportation principles · Why existing freight rail corridors · Challenges · Opportunities · Wrap-up #12;Phase I Projects (2010-2030) Phase II Projects (Future Expansion) Other Freight Lines 2009 Rail Plan (speeds up to 110

Minnesota, University of

367

Packed rod neutron shield for fast nuclear reactors  

DOE Patents (OSTI)

A fast neutron nuclear reactor including a core and a plurality of vertically oriented neutron shield assemblies surrounding the core. Each assembly includes closely packed cylindrical rods within a polygonal metallic duct. The shield assemblies are less susceptible to thermal stresses and are less massive than solid shield assemblies, and are cooled by liquid coolant flow through interstices among the rods and duct.

Eck, John E. (Hempfield Township, Westmoreland County, PA); Kasberg, Alvin H. (Murrysville, PA)

1978-01-01T23:59:59.000Z

368

Directional Detection of Fast Neutrons Using a Time Projection Chamber  

Science Conference Proceedings (OSTI)

Spontaneous fission in Special Nuclear Material (SNM) such as plutonium and highly enriched uranium (HEU) results in the emission of neutrons with energies in the MeV range (hereafter 'fast neutrons'). These fast neutrons are largely unaffected by the few centimeters of intervening high-Z material that would suffice for attenuating most emitted gamma rays, while tens of centimeters of hydrogenous materials are required to achieve substantial attenuation of neutron fluxes from SNM. Neutron detectors are therefore an important complement to gamma-ray detectors in SNM search and monitoring applications. The rate at which SNM emits fast neutrons varies from about 2 per kilogram per second for typical HEU to some 60,000 per kilogram per second for metallic weapons grade plutonium. These rates can be compared with typical sea-level (cosmogenic) neutron backgrounds of roughly 5 per second per square meter per steradian in the relevant energy range [1]. The fact that the backgrounds are largely isotropic makes directional neutron detection especially attractive for SNM detection. The ability to detect, localize, and ultimately identify fast neutron sources at standoff will ultimately be limited by this background rate. Fast neutrons are particularly well suited to standoff detection and localization of SNM or other fast neutrons sources. Fast neutrons have attenuation lengths of about 60 meters in air, and retain considerable information about their source direction even after one or two scatters. Knowledge of the incoming direction of a fast neutron, from SNM or otherwise, has the potential to significantly improve signal to background in a variety of applications, since the background arriving from any one direction is a small fraction of the total background. Imaging or directional information therefore allows for source detection at a larger standoff distance or with shorter dwell times compared to nondirectional detectors, provided high detection efficiency can be maintained. Directional detection of neutrons has been previously considered for applications such as controlled fusion neutron imaging [2], nuclear fuel safety research [3], imaging of solar neutrons and SNM [4], and in nuclear science [5]. The use of scintillating crystals and fibers has been proposed for directional neutron detection [6]. Recently, a neutron scatter camera has been designed, constructed, and tested for imaging of fast neutrons, characteristic for SNM material fission [7]. The neutron scatter camera relies on the measurement of the proton recoil angle and proton energy by time of flight between two segmented solid-state detectors. A single-measurement result from the neutron scatter camera is a ring containing the possible incident neutron direction. Here we describe the development and commissioning of a directional neutron detection system based on a time projection chamber (TPC) detector. The TPC, which has been widely used in particle and nuclear physics research for several decades, provides a convenient means of measuring the full 3D trajectory, specific ionization (i.e particle type) and energy of charged particles. For this application, we observe recoil protons produced by fast neutron scatters on protons in hydrogen or methane gas. Gas pressures of a few ATM provide reasonable neutron interaction/scattering rates.

Bowden, N; Heffner, M; Carosi, G; Carter, D; Foxe, M; Jovanovic, I

2009-06-03T23:59:59.000Z

369

EGR Control for Emisson Reduction Using Fast Response Sensors - Phase 1A  

DOE Green Energy (OSTI)

The overall objective of this project was to develop exhaust gas recirculation (EGR) control strategies using fast-response Particulate Matter (PM) sensors and NOx sensors to improve the quality of particulate and gaseous emissions from diesel engines. This project initially comprised three phases: (1) Phase IA - sensor requirements to meet PM sensor specifications, NOx sensor assessment, and initial model development for EGR control; (2) Phase IB - continue development on PM and NOx sensors, integrate the sensor signals into the control simulations, and finalize model development for control strategies; and (3) Phase II - validation testing of the control strategies. Only Phase 1A was funded by DOE and executed by Honeywell. The major objectives of Phase 1A of the project included: (1) Sensor validation and operation of fast-response PM and NOx sensors; (2) Control system modeling of low-pressure EGR controls, development of control strategies, and initial evaluation of these models and strategies for EGR control in diesel engines; (3) Sensor testing to understand applicability of fast-response PM sensors in determining loading rates of the particle trap; and (4) Model validation and sensor testing under steady-state and transient operational conditions of actual engines. In particular, specific objectives included demonstration of: (1) A PM sensor response time constant (T10 - T90) of better than 100 milliseconds (msec); (2) The ability to detect PM at concentrations from 0.2 to 2 Bosch smoke number (BSN) or equivalent; (3) PM sensor accuracy to within 20% BSN over the entire range of operation; and (4) PM sensor repeatability to within 10% over the PM entire sensor range equivalent to a BSN of 0.2 to 2.

Gravel, Roland; Conley, Jason; Kittelson, David

2008-09-30T23:59:59.000Z

370

Human adrenal tumor cell line SW-13 contains a natriuretic peptide receptor system that responds preferentially to ANP among various natriuretic peptides  

SciTech Connect

A new type of ANP receptor system which clearly distinguishes natriuretic peptides A and B (ANP and BNP) has been identified in the human adrenal tumor cell line SW-13 and characterized. SW-13 cells responded to nanomolar concentrations of ANP with large increases in cGMP levels but in the case of BNP, much higher concentrations were required to produce the same extent of response. This property is unique since the 140-kDa ANP receptors so far characterized do not discriminate between ANP and BNP. For comparison, various natriuretic peptide receptors were also re-characterized using the recently identified CNP.

Mizuno, T.; Katafuchi, T.; Hagiwara, H.; Ito, T.; Kangawa, K.; Matsuo, H.; Hirose, S. (Tokyo Institute of Technology (Japan))

1990-12-31T23:59:59.000Z

371

Empirical Constraints on Proton and Electron Heating in the Fast Solar Wind  

E-Print Network (OSTI)

We analyze measured proton and electron temperatures in the high-speed solar wind in order to calculate the separate rates of heat deposition for protons and electrons. When comparing with other regions of the heliosphere, the fast solar wind has the lowest density and the least frequent Coulomb collisions. This makes the fast wind an optimal testing ground for studies of collisionless kinetic processes associated with the dissipation of plasma turbulence. Data from the Helios and Ulysses plasma instruments were collected to determine mean radial trends in the temperatures and the electron heat conduction flux between 0.29 and 5.4 AU. The derived heating rates apply specifically for these mean plasma properties and not for the full range of measured values around the mean. We found that the protons receive about 60% of the total plasma heating in the inner heliosphere, and that this fraction increases to approximately 80% by the orbit of Jupiter. A major factor affecting the uncertainty in this fraction is th...

Cranmer, Steven R; Breech, Benjamin A; Kasper, Justin C

2009-01-01T23:59:59.000Z

372

Probing the Fast and Slow Components of Global Warming by Returning Abruptly to Preindustrial Forcing  

Science Conference Proceedings (OSTI)

The fast and slow components of global warming in a comprehensive climate model are isolated by examining the response to an instantaneous return to preindustrial forcing. The response is characterized by an initial fast exponential decay with an ...

Isaac M. Held; Michael Winton; Ken Takahashi; Thomas Delworth; Fanrong Zeng; Geoffrey K. Vallis

2010-05-01T23:59:59.000Z

373

Fluence-limited burnup as a function of fast reactor core parameters  

E-Print Network (OSTI)

The limiting factor in current designs for fast reactors is not only the reactivity, but also the maximum permissible fast-neutron fluence in the cladding, especially for reduced uranium enrichment cores using high-albedo ...

Kersting, Alyssa (Alyssa Rae)

2011-01-01T23:59:59.000Z

374

Electromagnetically-driven ultra-fast tool servos for diamond turning  

E-Print Network (OSTI)

This thesis presents the design, implementation, and control of a new class of fast tool servos (FTS). The primary thesis contributions include the design and experimental demonstration of: novel ultra-fast electromagnetic ...

Lu, Xiaodong, Ph. D. Massachusetts Institute of Technology

2005-01-01T23:59:59.000Z

375

Implicit–Explicit Multistep Methods for Fast-Wave–Slow-Wave Problems  

Science Conference Proceedings (OSTI)

Implicit–explicit (IMEX) linear multistep methods are examined with respect to their suitability for the integration of fast-wave–slow-wave problems in which the fast wave has relatively low amplitude and need not be accurately simulated. The ...

Dale R. Durran; Peter N. Blossey

2012-04-01T23:59:59.000Z

376

Design of passive decay heat removal system for the lead cooled flexible conversion ratio fast reactor  

E-Print Network (OSTI)

The lead-cooled flexible conversion ratio fast reactor shows many benefits over other fast-reactor designs; however, the higher power rating and denser primary coolant present difficulties for the design of a passive decay ...

Whitman, Joshua (Joshua J.)

2007-01-01T23:59:59.000Z

377

Genetic algorithm based k-means fast learning artificial neural network  

Science Conference Proceedings (OSTI)

The K-means Fast Learning Artificial Neural Network (KFLANN) is a small neural network bearing two types of parameters, the tolerance, ? and the vigilance, ? In previous papers, it was shown that the KFLANN was capable of fast ...

Yin Xiang; Alex Tay Leng Phuan

2004-12-01T23:59:59.000Z

378

Distributed Generation: Which technologies? How fast will they emerge?  

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

Distributed Generation: Which technologies? How fast will they emerge? Distributed Generation: Which technologies? How fast will they emerge? Speaker(s): Tony DeVuono Date: March 16, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Julie Osborn Utility deregulation, environmental issues, increases in electricity demand, natural gas/electricity rate changes, new technologies, and several other key drivers are stimulating distributed generation globally. The technologies that have pushed ahead of the pack are micro turbines and fuel cells. Since Modine is a world leader in the manufacturing of heat transfer equipment, we are eager to play in this new, emerging market. Are the market drivers real? Will these technologies survive or even thrive? What are the pitfalls? If you had the responsibility in your company to spend millions and direct dozens of people down the DG path,

379

Synchrotron radiation by fast fermions in heavy-ion collisions  

SciTech Connect

We study the synchrotron radiation of gluons by fast quarks in strong magnetic field produced by colliding relativistic heavy ions. We argue that due to high electric conductivity of plasma, the magnetic field is almost constant during the entire plasma lifetime. We calculate the energy loss due to synchrotron radiation of gluons by fast quarks. We find that the typical energy loss per unit length for a light quark at the Large Hadron Collider is a few GeV per fm. This effect alone predicts quenching of jets with p{sub perpendicular} up to about 20 GeV. We also show that the spin-flip transition effect accompanying the synchrotron radiation leads to a strong polarization of quarks and leptons with respect to the direction of the magnetic field. Observation of the lepton polarization may provide a direct evidence of existence of strong magnetic field in heavy-ion collisions.

Tuchin, Kirill [Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States) and RIKEN BNL Research Center, Upton, New York 11973-5000 (United States)

2010-09-15T23:59:59.000Z

380

Fast triggers for a proton injector at PEFP  

SciTech Connect

A fast timing system has been developed to control transistor transistor logic (TTL) trigger signals which are used to extract the pulsed proton beam from an ion source with the precision of less than submicro seconds. The system has been designed to set a delay and duty of the pulses, respectively, and prohibit the beam pulse by an external interlock signal. The system is based on VME which is composed of VME CPU and fast I/O boards with fan-out modules. The software of the system has been developed by the record/device supports and channel access in the core of the EPICS environments. In the paper, we describe software configurations and hardware drivers.

Song, Young-Gi; Hong, In-Seok; Cho, Yong-Sub; Cho, Yong-Hwan [Proton Engineering Frontier Project, Korea Atomic Energy Research Institute, Yuseong, Daejeon 305-353 (Korea, Republic of); School of Electrical and Computer Engineering, Chungbuk National University, Cheongju 361-763 (Korea, Republic of)

2008-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Overview of the fast reactors fuels program. [LMFBR  

SciTech Connect

Each nation involved in LMFBR development has its unique energy strategies which consider energy growth projections, uranium resources, capital costs, and plant operational requirements. Common to all of these strategies is a history of fast reactor experience which dates back to the days of the Manhatten Project and includes the CLEMENTINE Reactor, which generated a few watts, LAMPRE, EBR-I, EBR-II, FERMI, SEFOR, FFTF, BR-1, -2, -5, -10, BOR-60, BN-350, BN-600, JOYO, RAPSODIE, Phenix, KNK-II, DFR, and PFR. Fast reactors under design or construction include PEC, CRBR, SuperPhenix, SNR-300, MONJU, and Madras (India). The parallel fuels and materials evolution has fully supported this reactor development. It has involved cermets, molten plutonium alloy, plutonium oxide, uranium metal or alloy, uranium oxide, and mixed uranium-plutonium oxides and carbides.

Evans, E.A.; Cox, C.M.; Hayward, B.R.; Rice, L.H.; Yoshikawa, H.H.

1980-04-01T23:59:59.000Z

382

Preparations for the Integral Fast Reactor fuel cycle demonstration  

Science Conference Proceedings (OSTI)

Modifications to the Hot Fuel Examination Facility-South (HFEF/S) have been in progress since mid-1988 to ready the facility for demonstration of the unique Integral Fast Reactor (IFR) pyroprocess fuel cycle. This paper updates the last report on this subject to the American Nuclear Society and describes the progress made in the modifications to the facility and in fabrication of the new process equipment. The IFR is a breeder reactor, which is central to the capability of any reactor concept to contribute to mitigation of environmental impacts of fossil fuel combustion. As a fast breeder, fuel of course must be recycled in order to have any chance of an economical fuel cycle. The pyroprocess fuel cycle, relying on a metal alloy reactor fuel rather than oxide, has the potential to be economical even at small-scale deployment. Establishing this quantitatively is one important goal of the IFR fuel cycle demonstration.

Lineberry, M.J.; Phipps, R.D.

1989-01-01T23:59:59.000Z

383

Transportation fuels from biomass via fast pyrolysis and hydroprocessing  

SciTech Connect

Biomass is a renewable source of carbon, which could provide a means to reduce the greenhouse gas impact from fossil fuels in the transportation sector. Biomass is the only renewable source of liquid fuels, which could displace petroleum-derived products. Fast pyrolysis is a method of direct thermochemical conversion (non-bioconversion) of biomass to a liquid product. Although the direct conversion product, called bio-oil, is liquid; it is not compatible with the fuel handling systems currently used for transportation. Upgrading the product via catalytic processing with hydrogen gas, hydroprocessing, is a means that has been demonstrated in the laboratory. By this processing the bio-oil can be deoxygenated to hydrocarbons, which can be useful replacements of the hydrocarbon distillates in petroleum. While the fast pyrolysis of biomass is presently commercial, the upgrading of the liquid product by hydroprocessing remains in development, although it is moving out of the laboratory into scaled-up process demonstration systems.

Elliott, Douglas C.

2013-09-21T23:59:59.000Z

384

FAST FUEL TEST REACTOR-FFTR CONCEPTUAL DESIGN STUDY  

SciTech Connect

The Fast Fuel Test Reactor (FFTR) is a nuclear facility for the purpose of irradiating samples of fuels and structural components for use in fast reactors. The core consisis of a plate type element in a square configuration. Beryllium metal between the fuel elements is used to obtain a neutron energy spectrum in the hard intermediate region. Cooling of the core and test specimens is accomplished by means of liquid sodium. The design concept was carried through in sufficient degree in the following areas of preliminary concern: number and size of irradiation facilities, sample power requirements, plant layout to evaluate site requirements, plant and nuclear design parameters to evaluate essential equipment requirements. plant-capital-cost estimate, annual- operating-cost estimate, and estimate of construction time schedule. (W.D.M.)

Brubaker, R.; Hummel, H.H.; McArthy, A.; Smaardyk, A.; Kittel, J.H.

1960-08-01T23:59:59.000Z

385

Fast microtomography using bright monochromatic x-rays  

Science Conference Proceedings (OSTI)

A fast microtomography system for high-resolution high-speed imaging has been developed using bright monochromatic x-rays at the BL29XU beamline of SPring-8. The shortest scan time for microtomography we attained was 0.25 s in 1.25 {mu}m effective pixel size by combining the bright monochromatic x-rays, a fast rotating sample stage, and a high performance x-ray imaging detector. The feasibility of the tomography system was successfully demonstrated by visualization of rising bubbles in a viscous liquid, an interesting issue in multiphase flow physics. This system also provides a high spatial (a measurable feature size of 300 nm) or a very high temporal (9.8 {mu}s) resolution in radiographs.

Jung, J. W.; Lee, J. S.; Park, S. J.; Chang, S.; Pyo, J. [X-ray Imaging Center, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); Department of Materials Science and Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); Kwon, N.; Kim, J. [X-ray Imaging Center, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Kohmura, Y.; Nishino, Y.; Yamamoto, M.; Ishikawa, T. [RIKEN/SPring-8, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148 (Japan); Je, J. H. [X-ray Imaging Center, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); Department of Materials Science and Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); RIKEN/SPring-8, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148 (Japan)

2012-09-15T23:59:59.000Z

386

Recent Improvements in Fast Wave Heating in NSTX  

Science Conference Proceedings (OSTI)

Recent improvements in high-harmonic fast wave (HHFW) core heating in NSTX are attributed to using lithium conditioning, and other wall conditioning techniques, to move the onset density for perpendicular fast wave propagation further from the antenna. This has resulted in the first observation of HHFW core electron heating in deuterium plasma at a launched toroidal wavenumber, k? = -3 m-1, NSTX record core electron temperatures of 5 keV in helium and deuterium discharges and, for the first time, significant HHFW core electron heating of deuterium neutral-beam-fuelled H-mode plasmas. Also, k? = -8 m-1 heating of the plasma startup and plasma current ramp-up has resulted in significant core electron heating, even at central electron densities as low as ~ 4x1018 m-3.

G. Taylor, R.E. Bell, R.W. Harvey, J.C. Hosea, E.F. Jaeger, B.P. LeBlanc, C.K. Phillips, P.M. Ryan, E.J. Valeo, J.B. Wilgen, J.R. Wilson, and the NSTX Team

2009-06-26T23:59:59.000Z

387

Fast Automated Demand Response to Enable the Integration of Renewable Resources  

E-Print Network (OSTI)

Industrial Type Slow DR (2 Hour shed) Fast DR (20 minute shed) Current Controllability % Increased Controllability % Refrigeration –

Watson, David S.

2013-01-01T23:59:59.000Z

388

A Small Secure Transportable Autonomous Lead-Cooled Fast Reactor for Deployment at Remote Sites  

Science Conference Proceedings (OSTI)

This presentation discusses a small secure transportable autonomous lead-cooled fast reactor for deployment at remote sites.

Sienicki, J .J.; Smith, M.A.; Mosseytsev, A.V.; Yang, W.S.; Wade, D.C.

2004-10-06T23:59:59.000Z

389

Steam generator for liquid metal fast breeder reactor  

DOE Patents (OSTI)

Improvements in the design of internal components of J-shaped steam generators for liquid metal fast breeder reactors. Complex design improvements have been made to the internals of J-shaped steam generators which improvements are intended to reduce tube vibration, tube jamming, flow problems in the upper portion of the steam generator, manufacturing complexities in tube spacer attachments, thermal stripping potentials and difficulties in the weld fabrication of certain components.

Gillett, James E. (Greensburg, PA); Garner, Daniel C. (Murrysville, PA); Wineman, Arthur L. (Greensburg, PA); Robey, Robert M. (North Huntingdon, PA)

1985-01-01T23:59:59.000Z

390

Transmission Fast Simulation and Modeling (T-FSM) - Architectural Requirements  

Science Conference Proceedings (OSTI)

EPRI's IntelligridSM program is aimed at transforming today's electric power infrastructure into an intelligent infrastructure of the future that can support major improvements in the areas of security, quality, reliability, and availability. As a key phase of this program, EPRI has undertaken the Transmission Fast Simulation and Modeling (T-FSM) project to use real-time monitoring data to model and simulate system behavior; anticipate changing system conditions; and provide timely response during system...

2005-03-28T23:59:59.000Z

391

Fast Detector Simulation Using Lelaps, Detector Descriptions in GODL  

SciTech Connect

Lelaps is a fast detector simulation program which reads StdHep generator files and produces SIO or LCIO output files. It swims particles through detectors taking into account magnetic fields, multiple scattering and dE/dx energy loss. It simulates parameterized showers in EM and hadronic calorimeters and supports gamma conversions and decays. In addition to three built-in detector configurations, detector descriptions can also be read from files in the new GODL file format.

Langeveld, Willy; /SLAC

2005-07-06T23:59:59.000Z

392

Optical packet marking for fast discarding in an OLS scheme  

E-Print Network (OSTI)

We propose and validate experimentally a Time-to-Live signaling system for an Optical Label Swapping scheme based on 10 Gbit/s DPSK packets and with 100 Mbit/s SCM label. The proposed scheme allows fast packet discarding by using a 3.5 GHz sub-carrier tone. DPSK payload has only a 2 dB power penalty at 10 --9 bit error-rate after superimposing the SCM and TTL labeling signal.

Vegas Olmos Tafur

2004-01-01T23:59:59.000Z

393

Liquid metal fast breeder reactors, 1972--1973  

SciTech Connect

Reference to 1467 publications on liquid sodium fast breeder reactors cited in Nuclear Science Abstracts Volume 26 (1972) through Volume 27 (1973 through June) are contained in this citation to provide information on the contents of the document. References are arranged in order by the original NSA abstract number which approximately places them in chronological order. Sequence numbers appear beside each reference, and the personal author index refers to these sequence numbers. The subject index refers to the original abstract numbers. (auth)

1974-01-01T23:59:59.000Z

394

Electronic excitations in fast ion-solid collisions  

SciTech Connect

We review recent developments in the study of electronic excitation of projectiles in fast ion-solid collisions. Our focus will be primarily on theory but experimental advances will also be discussed. Topics include the evidence for velocity-dependent thresholds for the existence of bound states, wake-field effects on excited states, the electronic excitation of channeled projectiles, transport phenomena, and the interaction of highly charged ions with surfaces. 44 refs., 14 figs.

Burgdoerfer, J. (Tennessee Univ., Knoxville, TN (USA). Dept. of Physics and Astronomy Oak Ridge National Lab., TN (USA))

1990-01-01T23:59:59.000Z

395

Waveguide and loop coupling to fast MHD toroidal eigenmodes  

SciTech Connect

Heating of plasmas by wave techniques requires an effective method of coupling rf energy to the plasma. In cavities the presence of weakly damped eigenmodes will enhance the loading of antennas when the wave frequency equals an eigenmode frequency. This report considers two methods of coupling to fast MHD eigenmodes in a toroidal cavity: one is by a waveguide mounted perpendicular to the vacuum vessel wall; and the other by a loop placed within the cavity. (auth)

Paoloni, F.J.

1975-12-01T23:59:59.000Z

396

Final Report on Actinide Glass Scintillators for Fast Neutron Detection  

Science Conference Proceedings (OSTI)

This is the final report of an experimental investigation of actinide glass scintillators for fast-neutron detection. It covers work performed during FY2012. This supplements a previous report, PNNL-20854 “Initial Characterization of Thorium-loaded Glasses for Fast Neutron Detection” (October 2011). The work in FY2012 was done with funding remaining from FY2011. As noted in PNNL-20854, the glasses tested prior to July 2011 were erroneously identified as scintillators. The decision was then made to start from “scratch” with a literature survey and some test melts with a non-radioactive glass composition that could later be fabricated with select actinides, most likely thorium. The normal stand-in for thorium in radioactive waste glasses is cerium in the same oxidation state. Since cerium in the 3+ state is used as the light emitter in many scintillating glasses, the next most common substitute was used: hafnium. Three hafnium glasses were melted. Two melts were colored amber and a third was clear. It barely scintillated when exposed to alpha particles. The uses and applications for a scintillating fast neutron detector are important enough that the search for such a material should not be totally abandoned. This current effort focused on actinides that have very high neutron capture energy releases but low neutron capture cross sections. This results in very long counting times and poor signal to noise when working with sealed sources. These materials are best for high flux applications and access to neutron generators or reactors would enable better test scenarios. The total energy of the neutron capture reaction is not the only factor to focus on in isotope selection. Many neutron capture reactions result in energetic gamma rays that require large volumes or high densities to detect. If the scintillator is to separate neutrons from gamma rays, the capture reactions should produce heavy particles and few gamma rays. This would improve the detection of a signal for fast neutron capture.

Bliss, Mary; Stave, Jean A.

2012-10-01T23:59:59.000Z

397

Ultra-fast outflows (aka UFOs) from AGNs and QSOs  

E-Print Network (OSTI)

During the last decade, strong observational evidence has been accumulated for the existence of massive, high velocity winds/outflows (aka Ultra Fast Outflows, UFOs) in nearby AGNs and in more distant quasars. Here we briefly review some of the most recent developments in this field and discuss the relevance of UFOs for both understanding the physics of accretion disk winds in AGNs, and for quantifying the global amount of AGN feedback on the surrounding medium.

Cappi, M; Giustini, M

2013-01-01T23:59:59.000Z

398

Analyses of hypothetical FCI's in a fast reactor  

Science Conference Proceedings (OSTI)

Parametric analyses using the SIMMER code were performed to evaluate the potential for a severe recriticality from a pressure-driven recompaction caused by an energetic FCI during the transition phase of a hypothetical accident in a fast reactor. For realistic and reasonable estimates for the assumed accident conditions, a severe recriticality was not predicted. The conditions under which a severe recriticality would be obtained or averted were identified. 10 figures, 2 tables.

Padilla, A. Jr.; Martin, F.J.; Niccoli, L.G.

1981-01-01T23:59:59.000Z

399

A note on the theory of fast money flow dynamics  

E-Print Network (OSTI)

The gauge theory of arbitrage was introduced by Ilinski in [arXiv:hep-th/9710148] and applied to fast money flows in [arXiv:cond-mat/9902044]. The theory of fast money flow dynamics attempts to model the evolution of currency exchange rates and stock prices on short, e.g.\\ intra-day, time scales. It has been used to explain some of the heuristic trading rules, known as technical analysis, that are used by professional traders in the equity and foreign exchange markets. A critique of some of the underlying assumptions of the gauge theory of arbitrage was presented by Sornette in [arXiv:cond-mat/9804045]. In this paper, we present a critique of the theory of fast money flow dynamics, which was not examined by Sornette. We demonstrate that the choice of the input parameters used in [arXiv:cond-mat/9902044] results in sinusoidal oscillations of the exchange rate, in conflict with the results presented in [arXiv:cond-mat/9902044]. We also find that the dynamics predicted by the theory are generally unstable in mos...

Sokolov, Andrey; Melatos, Andrew

2010-01-01T23:59:59.000Z

400

EIA - New Iraqi oil production: How much; how fast?  

Gasoline and Diesel Fuel Update (EIA)

New Iraqi oil production: How much; how fast? New Iraqi oil production: How much; how fast? International Energy Outlook 2010 New Iraqi oil production: How much; how fast? Iraq holds a considerable portion of the world's conventional oil reserves, but has been unable to increase oil production substantially in recent years due to conflict and geopolitical constraints. As violence in Iraq has lessened, there has been a concerted effort to increase the country's oil production, both to bolster government revenues and to support wider economic development. Recently, Iraq offered prequalified foreign oil companies two opportunities to bid on designated fields under specific terms of investment. The success of the bidding rounds and the level of interest from foreign companies have raised hopes that oil production could increase substantially over a short period of time, with some Iraqi government officials stating that the country could increase its production to 12 million barrels per day by 2017.[a] Although Iraq has the reserves to support such growth, it will need to overcome numerous challenges in order to raise production to even a fraction of that goal.

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


401

Installation of a fast framing visible camera on KSTAR  

Science Conference Proceedings (OSTI)

Visible camera technologies have made remarkable progress in recent years, and the fast camera has proven itself to be a capable imaging diagnostic in studies of specific fusion plasma issues such as the start-up physics, plasma wall interactions, edge-localized modes, and disruptions. For the purpose of favorable visible imaging, a fast framing camera has recently been installed on the Korea Superconducting Tokamak Advanced Research (KSTAR) device. The camera uses a complementary metal-oxide semiconductor detector with a maximum resolution of 1280x1024 at 1000 frames/s (fps) and a minimum resolution of 1280x16 at 64 kfps. A 2-m-long viewport having a novel optical rail system was installed on a tangential port to view the tokamak interior. The system is fully controlled from the main control room and protected by a shutter from deposits. To verify that the camera electronics are safe from the high magnetic field and its rapid time variation, possible influences are considered theoretically and experimentally. In this work, we present the design and installation of the fast camera system on the KSTAR device with discussions on the field variation effect issues.

Chung, Jinil; Lee, Deok Kyo; Seo, Dongcheol [National Fusion Research Institute, Gwahangno 113, Daejeon 305-333 (Korea, Republic of); Choi, Myoung Choul [Korea Basic Science Institute, 804-1 Ochang, Cheongwon 363-883 (Korea, Republic of)

2008-10-15T23:59:59.000Z

402

EXTENDING SODIUM FAST REACTOR DRIVER FUEL USE TO HIGHER TEMPERATURES  

Science Conference Proceedings (OSTI)

Calculations of potential sodium-cooled fast reactor fuel temperatures were performed to estimate the effects of increasing the outlet temperature of a given fast reactor design by increasing pin power, decreasing assembly flow, or increasing inlet temperature. Based upon experience in the U.S., both metal and mixed oxide (MOX) fuel types are discussed in terms of potential performance effects created by the increased operating temperatures. Assembly outlet temperatures of 600, 650 and 700 °C were used as goal temperatures. Fuel/cladding chemical interaction (FCCI) and fuel melting, as well as challenges to the mechanical integrity of the cladding material, were identified as the limiting phenomena. For example, starting with a recent 1000 MWth fast reactor design, raising the outlet temperature to 650 °C through pin power increase increased the MOX centerline temperature to more than 3300 °C and the metal fuel peak cladding temperature to more than 700 °C. These exceeded limitations to fuel performance; fuel melting was limiting for MOX and FCCI for metal fuel. Both could be alleviated by design ‘fixes’, such as using a barrier inside the cladding to minimize FCCI in the metal fuel, or using annular fuel in the case of MOX. Both would also require an advanced cladding material with improved stress rupture properties. While some of these are costly, the benefits of having a high-temperature reactor which can support hydrogen production, or other missions requiring high process heat may make the extra costs justified.

Douglas L. Porter

2011-02-01T23:59:59.000Z

403

Spectral Effects on Fast Wave Core Heating and Current Drive  

SciTech Connect

Recent results obtained with high harmonic fast wave (HHFW) heating and current drive (CD) on NSTX strongly support the hypothesis that the onset of perpendicular fast wave propagation right at or very near the launcher is a primary cause for a reduction in core heating efficiency at long wavelengths that is also observed in ICRF heating experiments in numerous tokamaks. A dramatic increase in core heating efficiency was first achieved in NSTX L-mode helium majority plasmas when the onset for perpendicular wave propagation was moved away from the antenna and nearby vessel structures. Efficient core heating in deuterium majority L mode and H mode discharges, in which the edge density is typically higher than in comparable helium majority plasmas, was then accomplished by reducing the edge density in front of the launcher with lithium conditioning and avoiding operational points prone to instabilities. These results indicate that careful tailoring of the edge density profiles in ITER should be considered to limit rf power losses to the antenna and plasma facing materials. Finally, in plasmas with reduced rf power losses in the edge regions, the first direct measurements of high harmonic fast wave current drive were obtained with the motional Stark effect (MSE) diagnostic. The location and radial dependence of HHFW CD measured by MSE are in reasonable agreement with predictions from both full wave and ray tracing simulations.

C.K. Phillips, R.E. Bell, L.A. Berry, P.T. Bonoli, R.W. Harvey, J.C. Hosea, E.F. Jaeger, B.P. LeBlanc, P.M. Ryan, G. Taylor, E.J. Valeo, J.R. Wilson, J.C. Wright, H. Yuh, and the NSTX Team

2009-05-11T23:59:59.000Z

404

A high-field adiabatic fast passage ultracold neutron spin flipper for the UCNA experiment  

Science Conference Proceedings (OSTI)

The UCNA collaboration is making a precision measurement of the {beta} asymmetry (A) in free neutron decay using polarized ultracold neutrons (UCN). A critical component of this experiment is an adiabatic fast passage neutron spin flipper capable of efficient operation in ambient magnetic fields on the order of 1 T. The requirement that it operate in a high field necessitated the construction of a free neutron spin flipper based, for the first time, on a birdcage resonator. The design, construction, and initial testing of this spin flipper prior to its use in the first measurement of A with UCN during the 2007 run cycle of the Los Alamos Neutron Science Center's 800 MeV proton accelerator is detailed. These studies determined the flipping efficiency of the device, averaged over the UCN spectrum present at the location of the spin flipper, to be {epsilon}=0.9985(4).

Holley, A. T.; Pattie, R. W.; Young, A. R. [Department of Physics, North Carolina State University, Raleigh, North Carolina 27695 (United States); Broussard, L. J. [Department of Physics, Duke University, Durham, North Carolina 27708 (United States); Davis, J. L.; Ito, T. M.; Lyles, J. T. M.; Makela, M.; Morris, C. L.; Mortensen, R.; Saunders, A. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Hickerson, K.; Mendenhall, M. P. [W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125 (United States); Liu, C.-Y. [Department of Physics, Indiana University, Bloomington, Indiana 47405 (United States); Mammei, R. R. [Department of Physics, Virginia Tech, Blacksburg, Virginia 24061 (United States); Rios, R. [Department of Physics, Idaho State University, Pocatello, Idaho 83209 (United States)

2012-07-15T23:59:59.000Z

405

Evidence for ultra-fast heating in intense-laser irradiated reduced-mass targets  

Science Conference Proceedings (OSTI)

We report on an experiment irradiating individual argon droplets of 20 {mu}m diameter with laser pulses of several Joule energy at intensities of 10{sup 19} W/cm{sup 2}. K-shell emission spectroscopy was employed to determine the hot electron energy fraction and the time-integrated charge-state distribution. Spectral fitting indicates that bulk temperatures up to 160 eV are reached. Modelling of the hot-electron relaxation and generation of K-shell emission with collisional hot-electron stopping only is incompatible with the experimental results, and the data suggest an additional ultra-fast (sub-ps) heating contribution. For example, including resistive heating in the modelling yields a much better agreement with the observed final bulk temperature and qualitatively reproduces the observed charge state distribution.

Neumayer, P.; Gumberidze, A.; Hochhaus, D. C. [ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum fuer Schwerionenforschung, 64291 Darmstadt (Germany); Frankfurt Institute for Advanced Studies FIAS, 60438 Frankfurt am Main (Germany); Aurand, B.; Stoehlker, T. [Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany); Helmholtz Institute Jena, 07743 Jena (Germany); Costa Fraga, R. A.; Kalinin, A. [Institut fuer Kernphysik, J. W. Goethe University Frankfurt, 60438 Frankfurt am Main (Germany); Ecker, B. [Johannes Gutenberg University Mainz, 55099 Mainz (Germany); Helmholtz Institute Jena, 07743 Jena (Germany); Grisenti, R. E. [Institut fuer Kernphysik, J. W. Goethe University Frankfurt, 60438 Frankfurt am Main (Germany); Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany); Kaluza, M. C. [Helmholtz Institute Jena, 07743 Jena (Germany); IOQ Institute of Optics and Quantum Electronics, University of Jena (Germany); Kuehl, T. [Johannes Gutenberg University Mainz, 55099 Mainz (Germany); Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany); Helmholtz Institute Jena, 07743 Jena (Germany); Polz, J. [IOQ Institute of Optics and Quantum Electronics, University of Jena (Germany); Reuschl, R. [ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum fuer Schwerionenforschung, 64291 Darmstadt (Germany); Winters, D.; Winters, N.; Yin, Z. [Helmholtzzentrum fuer Schwerionenforschung GSI, 64291 Darmstadt (Germany)

2012-12-15T23:59:59.000Z

406

Fast time delay neural networks for word detection in video conference  

Science Conference Proceedings (OSTI)

This paper presents a new approach to speed up the operation of time delay neural networks for fast detecting a word in a video conference. The entire data are collected together in a long vector and then tested as a one input pattern. The proposed fast ... Keywords: cross correlation, fast time delay neural networks, frequency domain, word detection in video conference

Hazem M. El-Bakry; Nikos Mastorakis

2009-06-01T23:59:59.000Z

407

Brief announcement: towards a communication optimal fast multipole method and its implications at exascale  

Science Conference Proceedings (OSTI)

This paper presents the first in-depth models for compute and memory costs of the kernel-independent Fast Multipole Method (KIFMM). The Fast Multiple Method (FMM) has asymptotically linear time complexity with a guaranteed approximation accuracy, making ... Keywords: cache complexity analysis, exascale, fast multipole method, performance modeling

Aparna Chandramowlishwaran; JeeWhan Choi; Kamesh Madduri; Richard Vuduc

2012-06-01T23:59:59.000Z

408

Using NFFT 3---A Software Library for Various Nonequispaced Fast Fourier Transforms  

Science Conference Proceedings (OSTI)

NFFT 3 is a software library that implements the nonequispaced fast Fourier transform (NFFT) and a number of related algorithms, for example, nonequispaced fast Fourier transforms on the sphere and iterative schemes for inversion. This article provides ... Keywords: Fast Fourier transforms, approximative algorithms

Jens Keiner; Stefan Kunis; Daniel Potts

2009-08-01T23:59:59.000Z

409

NRC Consent to Indirect License Transfer/Threshold Determination- Merger  

E-Print Network (OSTI)

Company ("CY"), and Yankee Atomic Electric Company ("YR") (each a "Yankee Company," and together, "the Yankee Companies"), hereby respond to the Nuclear Regulatory Commission ("NRC") Third Request for Additional Information for Application for NRC Consent to Indirect License Transfer/Threshold Determination (TAC Nos. L24496, L24497, and L24498) ("RAI 3") received by the Yankee Companies on August 5, 2011. If you have questions or require additional information, please contact me or Joe Fay at (207) 350-0300. Sincerely, Wayne Norton

The Yankee Companies

2011-01-01T23:59:59.000Z

410

Coronal Heating and Acceleration of the High/Low-Speed Solar Wind by Fast/Slow MHD Shock Trains  

E-Print Network (OSTI)

We investigate coronal heating and acceleration of the high- and low-speed solar wind in the open field region by dissipation of fast and slow magnetohydrodynamical (MHD) waves through MHD shocks. Linearly polarized \\Alfven (fast MHD) waves and acoustic (slow MHD) waves travelling upwardly along with a magnetic field line eventually form fast switch-on shock trains and hydrodynamical shock trains (N-waves) respectively to heat and accelerate the plasma. We determine one dimensional structure of the corona from the bottom of the transition region (TR) to 1AU under the steady-state condition by solving evolutionary equations for the shock amplitudes simultaneously with the momentum and proton/electron energy equations. Our model reproduces the overall trend of the high-speed wind from the polar holes and the low-speed wind from the mid- to low-latitude streamer except the observed hot corona in the streamer. The heating from the slow waves is effective in the low corona to increase the density there, and plays an important role in the formation of the dense low-speed wind. On the other hand, the fast waves can carry a sizable energy to the upper level to heat the outer corona and accelerate the high-speed wind effectively. We also study dependency on field strength, $B_0$, at the bottom of the TR and non-radial expansion of a flow tube, $f_{\\rm max}$, to find that large $B_0/f_{\\rm max}\\gtrsim 2$ but small $B_0\\simeq 2$G are favorable for the high-speed wind and that small $B_0/f_{\\rm max}\\simeq 1$ is required for the low-speed wind.

Takeru K. Suzuki

2003-12-22T23:59:59.000Z

411

Categorical Exclusion Determinations: South Dakota | Department of Energy  

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

Dakota Dakota Categorical Exclusion Determinations: South Dakota Location Categorical Exclusion Determinations issued for actions in South Dakota. DOCUMENTS AVAILABLE FOR DOWNLOAD March 27, 2013 CX-010387: Categorical Exclusion Determination The Geotechnical Investigation of the Long Baseline Neutrino Experiment Detector Site in South Dakota CX(s) Applied: B3.1 Date: 03/27/2013 Location(s): South Dakota Offices(s): Fermi Site Office March 25, 2013 CX-010254: Categorical Exclusion Determination Capitol Building Air Handling Unit Replacement CX(s) Applied: A9, B5.1 Date: 03/25/2013 Location(s): South Dakota Offices(s): Golden Field Office March 9, 2013 CX-010270: Categorical Exclusion Determination Developing Gas Stripping, Catalytic Fast Pyrolysis Conversion of Corn Stover to Drop-in Quality Hydrocarbons

412

CX-010698: Categorical Exclusion Determination | Department of Energy  

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

10698: Categorical Exclusion Determination 10698: Categorical Exclusion Determination CX-010698: Categorical Exclusion Determination Modeling and Validation of Sodium Plugging for Heat Exchangers in Sodium-cooled Fast Reactor Systems CX(s) Applied: B3.6 Date: 07/11/2013 Location(s): Illinois Offices(s): Idaho Operations Office Westinghouse proposes to perform development and testing of new experimental techniques for detecting the presence of Na2O, as well as to measure the thickness of the corresponding deposits on channel walls. These tasks will be accomplished using the Sodium Plugging Phenomena Loop (SPPL) available at Argonne National Laboratory. CX-010698.pdf More Documents & Publications CX-000681: Categorical Exclusion Determination CX-010700: Categorical Exclusion Determination CX-008727

413

The geometric factor of electrostatic plasma analyzers: A case study from the Fast Plasma Investigation for the Magnetospheric Multiscale mission  

Science Conference Proceedings (OSTI)

We report our findings comparing the geometric factor ( GF ) as determined from simulations and laboratory measurements of the new Dual Electron Spectrometer (DES) being developed at NASA Goddard Space Flight Center as part of the Fast Plasma Investigation on NASA’s Magnetospheric Multiscale mission. Particle simulations are increasingly playing an essential role in the design and calibration of electrostatic analyzers facilitating the identification and mitigation of the many sources of systematic error present in laboratory calibration. While equations for laboratory measurement of the GF have been described in the literature

Glyn A. Collinson; John C. Dorelli; Levon A. Avanov; Gethyn R. Lewis; Thomas E. Moore; Craig Pollock; Dhiren O. Kataria; Robert Bedington; Chris S. Arridge; Dennis J. Chornay; Ulrik Gliese; Al Mariano; Alexander C. Barrie; Corey Tucker; Christopher J. Owen; Andrew P. Walsh; Mark D. Shappirio; Mark L. Adrian

2012-01-01T23:59:59.000Z

414

Structure, ionic Conductivity and mobile Carrier Density in Fast Ionic Conducting Chalcogenide Glasses  

SciTech Connect

This thesis consists of six sections. The first section gives the basic research background on the ionic conduction mechanism in glass, polarization in the glass, and the method of determining the mobile carrier density in glass. The proposed work is also included in this section. The second section is a paper that characterizes the structure of MI + M{sub 2}S + (0.1 Ga{sub 2}S{sub 3} + 0.9 GeS{sub 2}) (M = Li, Na, K and Cs) glasses using Raman and IR spectroscopy. Since the ionic radius plays an important role in determining the ionic conductivity in glasses, the glass forming range for the addition of different alkalis into the basic glass forming system 0.1 Ga{sub 2}S{sub 3} + 0.9 GeS{sub 2} was studied. The study found that the change of the alkali radius for the same nominal composition causes significant structure change to the glasses. The third section is a paper that investigates the ionic conductivity of MI + M{sub 2}S + (0.1Ga{sub 2}S{sub 3} + 0.9 GeS{sub 2}) (M = Li, Na, K and Cs) glasses system. Corresponding to the compositional changes in these fast ionic conducting glasses, the ionic conductivity shows changes due to the induced structural changes. The ionic radius effect on the ionic conductivity in these glasses was investigated. The fourth section is a paper that examines the mobile carrier density based upon the measurements of space charge polarization. For the first time, the charge carrier number density in fast ionic conducting chalcogenide glasses was determined. The experimental impedance data were fitted using equivalent circuits and the obtained parameters were used to determine the mobile carrier density. The influence of mobile carrier density and mobility on the ionic conductivity was separated. The fifth section is a paper that studies the structures of low-alkali-content Na{sub 2}S + B{sub 2}S{sub 3} (x {le} 0.2) glasses by neutron and synchrotron x-ray diffraction. Similar results were obtained both in neutron and synchrotron x-ray diffraction experiments. The results provide direct structural evidence that doping B{sub 2}S{sub 3} with Na{sub 2}S creates a large fraction of tetrahedrally coordinated boron in the glass. The final section is the general conclusion of this thesis and the suggested future work that could be conducted to expand upon this research.

Wenlong Yao

2006-12-12T23:59:59.000Z

415

Optimized sympathetic cooling of atomic mixtures via fast adiabatic strategies  

SciTech Connect

We discuss fast frictionless cooling techniques in the framework of sympathetic cooling of cold atomic mixtures. It is argued that optimal cooling of an atomic species--in which the deepest quantum degeneracy regime is achieved--may be obtained by means of sympathetic cooling with another species whose trapping frequency is dynamically changed to maintain constancy of the Lewis-Riesenfeld adiabatic invariant. Advantages and limitations of this cooling strategy are discussed, with particular regard to the possibility of cooling Fermi gases to a deeper degenerate regime.

Choi, Stephen; Sundaram, Bala [Department of Physics, University of Massachusetts, Boston, Massachusetts 02125 (United States); Onofrio, Roberto [Dipartimento di Fisica ''Galileo Galilei'', Universita di Padova, Via Marzolo 8, Padova I-35131 (Italy); Department of Physics, University of Massachusetts, Boston, Massachusetts 02125 (United States); Institute for Theoretical Atomic, Molecular and Optical Physics (ITAMP), Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States)

2011-11-15T23:59:59.000Z

416

Liquid Metal Fast Breeder Reactor plant maintenance and equipment design  

Science Conference Proceedings (OSTI)

This paper provides a summary of maintenance equipment considerations and actual plant handling experiences from operation of a sodium-cooled reactor, the Fast Flux Test Facility (FFTF). Equipment areas relating to design, repair techniques, in-cell handling, logistics and facility services are discussed. Plant design must make provisions for handling and replacement of components within containment or allow for transport to an ex-containment area for repair. The modular cask assemblies and transporter systems developed for FFTF can service major plant components as well as smaller units. The plant and equipment designs for the Clinch River Breeder Reactor (CRBR) plant have been patterned after successful FFTF equipment.

Swannack, D.L.

1982-06-07T23:59:59.000Z

417

Solar demonstration project in a fast-food restaurant  

Science Conference Proceedings (OSTI)

Results are given of a two-phase program in which the first phase included the successful use of heat reclamation equipment and energy conservation techniques at a typical fast-food restaurant. The project's second phase involved the engineering, designing, installation and interfacing of a solar collector system at the facility. The report will help to serve as a guide for other restaurants around the state, and possibly the nation, which wish to install energy saving systems, or adopt energy-saving techniques, geared to their special needs and equipment.

McClenahan, D.

1980-11-01T23:59:59.000Z

418

The Integral Fast Reactor: A practical approach to waste management  

SciTech Connect

This report discusses development of the method for pyroprocessing of spent fuel from the Integral Fast Reactor (or Advanced Liquid Metal Reactor). The technology demonstration phase, in which recycle will be demonstrated with irradiated fuel from the EBR-II reactor has been reached. Methods for recovering actinides from spent LWR fuel are at an earlier stage of development but appear to be technically feasible at this time, and a large-scale demonstration of this process has begun. The utilization of fully compatible processes for recycling valuable spent fuel materials promises to provide substantial economic incentives for future applications of the pyroprocessing technology.

Laidler, J.J.

1993-12-31T23:59:59.000Z

419

Fast-scale bifurcation . . . converters and effects of incompatible periodicities  

E-Print Network (OSTI)

In this paper, we derive the discrete-time model for the power-factor-correction (PFC) buck-boost converter in terms of a stroboscopic switching map. Fast-scale instability is analysed through a fold diagram, which exposes the periodicity of the operation as well as the locations of the critical phase angles of the line voltage at which instability begins to occur along a half-line cycle. The asymmetrical locations of the critical phase angles along a half-line cycle is explained in terms of ‘underdeveloped’ bifurcation. Border collision bifurcations are observed and analysed in detail.

Jianlong Zou; Xikui Ma; Chi K. Tse; Dong Dai

2006-01-01T23:59:59.000Z

420

A FUEL REPROCESSING PLANT FOR FAST CERAMIC REACTORS  

SciTech Connect

A study was made of the adaptation of the HAPO anion exchange process to the reprocessing of Fast Ceramic Reactor (FCR) fuel using the Idaho Small Plant Concept. It is shown that the anion exchange flowsheet meets the reprocessing objectives of the FCR case and can be adequately accommodated in the Small Plant Concept. Capacities of up to 1550 Md(e) are feasible in the Small Plant and unit reprocessing costs range from 0.14 to 0.28 mills/kwh depending on the number of reactors to be processed. (auth)

Alter, H.W.

1962-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


421

Energy-loss rate of a fast particle in graphene  

SciTech Connect

The energy-loss rate of a fast particle in graphene is studied. The energy-loss rate always increases with increasing incident particle energy, which is quite unusual when compared to electron gas in normal metal. Graphene exhibits a ''discriminating'' behavior where there exists a low energy cut-off below which the scattering process is strictly forbidden, leading to lossless traverse of an external particle in graphene. This low energy cutoff is of the order of nearest neighbor hopping bandwidth. Our results suggest that backscattering is also absent in the external particle scattering of graphene.

Ang, Yee Sin; Zhang, C. [School of Engineering Physics, University of Wollongong, 2522 NSW (Australia); Kee, Chun Yun [Department of Mathematics, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260 (Singapore)

2011-08-01T23:59:59.000Z

422

CX-010092: Categorical Exclusion Determination | Department of Energy  

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

92: Categorical Exclusion Determination 92: Categorical Exclusion Determination CX-010092: Categorical Exclusion Determination Land Mobile Radio - Bi Directional Amplifier (BDA) Installation CX(s) Applied: B1.7 Date: 03/21/2013 Location(s): Idaho Offices(s): Nuclear Energy The Idaho National Laboratory (INL) has contracted with White Cloud Communications to provide Land Mobile Radio Services for emergency first responders under a managed service contract. The contract includes provisions for area coverage and quality of service. Testing of the installed Radio Frequency backbone system revealed that certain buildings at the INL do not have adequate coverage. The engineered solution to remedy this service deficiency is to install Bi-Directional Amplifiers (BDAs) in the deficient areas. Microsoft Word - DOE-ID-INL-13-005.docx

423

CX-009227: Categorical Exclusion Determination | Department of Energy  

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

27: Categorical Exclusion Determination 27: Categorical Exclusion Determination CX-009227: Categorical Exclusion Determination Beaver Creek- Big Sandy 115 Kilovolt Transmission Line Structure Replacements - Last Chance Fire CX(s) Applied: B4.13 Date: 08/31/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) replaced approximately 55 structures on an existing l 0 mile section of the 115-k V transmission line between Beaver Creek and Big Sandy Substations in Washington County, Colorado. The Last Chance fire which began on June 25, 2012, destroyed the existing structures beyond repair. Western crews responded to this emergency and rebuilt the downed power lines to restore electrical service. The maintenance crews used existing access roads and no grading or

424

CX-003192: Categorical Exclusion Determination | Department of Energy  

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

92: Categorical Exclusion Determination 92: Categorical Exclusion Determination CX-003192: Categorical Exclusion Determination Rush University Advanced Emergency Medical Response Center CX(s) Applied: B3.12 Date: 07/21/2010 Location(s): Chicago, Illinois Office(s): Science, Chicago Office The project consists of building an advanced emergency department based upon the concept of a "Center for Advanced Emergency Response" that allows the Emergency Department to respond to and treat victims of chemical, biological, radiological, nuclear or explosive events as well as functioning as a standard emergency on a day to day basis. The infrastructure involves special heating, ventilation, and air conditioning equipment to provide negative or positive pressure air flow, contaminated waste water runoff containment tanks, redundant utilities, and alternate

425

CX-003019: Categorical Exclusion Determination | Department of Energy  

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

019: Categorical Exclusion Determination 019: Categorical Exclusion Determination CX-003019: Categorical Exclusion Determination Sectionalize Spence-Dave-Johnston 230-Kilovolt Line Near Casper CX(s) Applied: B4.13 Date: 05/31/2010 Location(s): Casper, Wyoming Office(s): Western Area Power Administration-Rocky Mountain Region The Western Area Power Administration, Loveland, Colorado, is responding to a request by PacifiCorp Energy to reroute a small section of Western's Dave Johnston to Spence transmission line onto 0.8 miles of new right-of-way in the vicinity of PacifiCorp's Casper substation. Western would own the new right-of-way acquired by PacifiCorp. The reroute would accommodate activities that PacifiCorp needs to accomplish at their substation. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003019.pdf

426

PROTON, ELECTRON, AND ION HEATING IN THE FAST SOLAR WIND FROM NONLINEAR COUPLING BETWEEN ALFVENIC AND FAST-MODE TURBULENCE  

Science Conference Proceedings (OSTI)

In the parts of the solar corona and solar wind that experience the fewest Coulomb collisions, the component proton, electron, and heavy ion populations are not in thermal equilibrium with one another. Observed differences in temperatures, outflow speeds, and velocity distribution anisotropies are useful constraints on proposed explanations for how the plasma is heated and accelerated. This paper presents new predictions of the rates of collisionless heating for each particle species, in which the energy input is assumed to come from magnetohydrodynamic (MHD) turbulence. We first created an empirical description of the radial evolution of Alfven, fast-mode, and slow-mode MHD waves. This model provides the total wave power in each mode as a function of distance along an expanding flux tube in the high-speed solar wind. Next, we solved a set of cascade advection-diffusion equations that give the time-steady wavenumber spectra at each distance. An approximate term for nonlinear coupling between the Alfven and fast-mode fluctuations is included. For reasonable choices of the parameters, our model contains enough energy transfer from the fast mode to the Alfven mode to excite the high-frequency ion cyclotron resonance. This resonance is efficient at heating protons and other ions in the direction perpendicular to the background magnetic field, and our model predicts heating rates for these species that agree well with both spectroscopic and in situ measurements. Nonetheless, the high-frequency waves comprise only a small part of the total Alfvenic fluctuation spectrum, which remains highly two dimensional as is observed in interplanetary space.

Cranmer, Steven R.; Van Ballegooijen, Adriaan A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

2012-08-01T23:59:59.000Z

427

Draft General Conformity Determination  

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

I I Draft General Conformity Determination U.S. Department of the Interior Minerals Management Service MMS Cape Wind Energy Project January 2009 Final EIS Appendix I Draft General Conformity Determination Draft General Conformity Determination Cape Wind Energy Project Prepared by Minerals Management Service Herndon, VA November 2008 i TABLE OF CONTENTS 1.0 INTRODUCTION TO THE PROPOSED ACTION............................................................... 1 2.0 GENERAL CONFORMITY REGULATORY BACKGROUND .......................................... 2 2.1 GENERAL CONFORMITY REQUIREMENTS.................................................................... 2 2.2 GENERAL CONFORMITY APPLICABILITY.....................................................................

428

The Spectroscopic Footprint of the Fast Solar Wind  

E-Print Network (OSTI)

We analyze a large, complex equatorial coronal hole (ECH) and its immediate surroundings with a focus on the roots of the fast solar wind. We start by demonstrating that our ECH is indeed a source of the fast solar wind at 1AU by examining in situ plasma measurements in conjunction with recently developed measures of magnetic conditions of the photosphere, inner heliosphere and the mapping of the solar wind source region. We focus the bulk of our analysis on interpreting the thermal and spatial dependence of the non-thermal line widths in the ECH as measured by SOHO/SUMER by placing the measurements in context with recent studies of ubiquitous Alfven waves in the solar atmosphere and line profile asymmetries (indicative of episodic heating and mass loading of the coronal plasma) that originate in the strong, unipolar magnetic flux concentrations that comprise the supergranular network. The results presented in this paper are consistent with a picture where a significant portion of the energy responsible for t...

McIntosh, Scott W; De Pontieu, Bart

2010-01-01T23:59:59.000Z

429

IBW and fast wave launching and damping on TFTR  

Science Conference Proceedings (OSTI)

Antennas to provide direct IBW excitation and to improve the launched spectrum and power handling for mode converted (MC) IBW excitation have been installed on TFTR to support studies of transport barrier formation inside the TFTR plasma. Initial IBW launching/heating experiments have been performed at f{sub RF}{approx}76MHz and 50.6 MHz for several antenna and plasma positions, several magnetic fields (D, T, H, {sup 3}He resonances), and with and without neutral beam injection. Although the measured surface density profiles in front of the antenna should theoretically support IBW launching to the plasma core via EPW excitation, loading resistance parameter dependence and heating results suggest that the wave energy is being deposited mostly in the plasma periphery. The potential roles of surface fast wave and near field excitation/damping on the IBW performance are discussed. Also MC IBW damping of the fast wave has been significantly improved through the removal of lithium 7 from the plasma. {copyright} {ital 1997 American Institute of Physics.}

Hosea, J.C.; Bell, R.; Hill, K.; LeBlanc, B.; Majeski, R.; Nazikian, R.; Ono, M.; Phillips, C.K.; Rogers, J.H.; Schilling, G.; Wilson, J.R. [Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543 (United States); DIppolito, D.A.; Myra, J.R. [Lodestar Research Corporation, Boulder, Colorado 80301 (United States); Bush, C.E.; Hanson, G.R. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8071 (United States)

1997-04-01T23:59:59.000Z

430

Coarse-graining stochastic biochemical networks: adiabaticity and fast simulations  

SciTech Connect

We propose a universal approach for analysis and fast simulations of stiff stochastic biochemical kinetics networks, which rests on elimination of fast chemical species without a loss of information about mesoscoplc, non-Poissonian fluctuations of the slow ones. Our approach, which is similar to the Born-Oppenhelmer approximation in quantum mechanics, follows from the stochastic path Integral representation of the cumulant generating function of reaction events. In applications with a small number of chemIcal reactions, It produces analytical expressions for cumulants of chemical fluxes between the slow variables. This allows for a low-dimensional, Interpretable representation and can be used for coarse-grained numerical simulation schemes with a small computational complexity and yet high accuracy. As an example, we derive the coarse-grained description for a chain of biochemical reactions, and show that the coarse-grained and the microscopic simulations are in an agreement, but the coarse-gralned simulations are three orders of magnitude faster.

Nemenman, Ilya [Los Alamos National Laboratory; Sinitsyn, Nikolai [Los Alamos National Laboratory; Hengartner, Nick [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

431

Spectral effects on fast wave core heating and current drive  

Science Conference Proceedings (OSTI)

Recent results obtained with high harmonic fast wave (HHFW) heating and current drive (CD) on NSTX strongly support the hypothesis that the onset of perpendicular fast wave propagation right at or very near the launcher is a primary cause for a reduction in core heating efficiency at long wavelengths that is also observed in ICRF heating experiments in numerous tokamaks. A dramatic increase in core heating efficiency was first achieved in NSTX L-mode helium majority plasmas when the onset for perpendicular wave propagation was moved away from the antenna and nearby vessel structures. Efficient core heating in deuterium majority L-mode and H-mode discharges, in which the edge density is typically higher than in comparable helium majority plasmas, was then accomplished by reducing the edge density in front of the launcher with lithium conditioning and avoiding operational points prone to instabilities. These results indicate that careful tailoring of the edge density profiles in ITER should be considered to limit radio frequency (rf) power losses to the antenna and plasma facing materials. Finally, in plasmas with reduced rf power losses in the edge regions, the first direct measurements of HHFW CD were obtained with the motional Stark effect (MSE) diagnostic. The location and radial dependence of HHFW CD measured by MSE are in reasonable agreement with predictions from both full wave and ray tracing simulations.

Phillips, Cynthia [Princeton Plasma Physics Laboratory (PPPL); Bell, R. E. [Princeton Plasma Physics Laboratory (PPPL); Berry, Lee [Oak Ridge National Laboratory (ORNL); Jaeger, Erwin Frederick [ORNL; Ryan, Philip Michael [ORNL; Wilgen, John B [ORNL

2009-01-01T23:59:59.000Z

432

V-FASTR: THE VLBA FAST RADIO TRANSIENTS EXPERIMENT  

Science Conference Proceedings (OSTI)

Recent discoveries of dispersed, non-periodic impulsive radio signals with single-dish radio telescopes have sparked significant interest in exploring the relatively uncharted space of fast transient radio signals. Here we describe V-FASTR, an experiment to perform a blind search for fast transient radio signals using the Very Long Baseline Array (VLBA). The experiment runs entirely in a commensal mode, alongside normal VLBA observations and operations. It is made possible by the features and flexibility of the DiFX software correlator that is used to process VLBA data. Using the VLBA for this type of experiment offers significant advantages over single-dish experiments, including a larger field of view, the ability to easily distinguish local radio-frequency interference from real signals, and the possibility to localize detected events on the sky to milliarcsecond accuracy. We describe our software pipeline, which accepts short integration ({approx} ms) spectrometer data from each antenna in real time during correlation and performs an incoherent dedispersion separately for each antenna, over a range of trial dispersion measures. The dedispersed data are processed by a sophisticated detector and candidate events are recorded. At the end of the correlation, small snippets of the raw data at the time of the events are stored for further analysis. We present the results of our event detection pipeline from some test observations of the pulsars B0329+54 and B0531+21 (the Crab pulsar).

Wayth, Randall B.; Tingay, Steven J. [International Centre for Radio Astronomy Research, Curtin University, GPO Box U1987, Perth, WA 6845 (Australia); Brisken, Walter F.; Deller, Adam T. [NRAO, P.O. Box O, Socorro, NM 87801 (United States); Majid, Walid A.; Thompson, David R.; Wagstaff, Kiri L., E-mail: randall.wayth@icrar.org [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)

2011-07-10T23:59:59.000Z

433

Reactor closure design for a pool-type fast reactor  

SciTech Connect

The reactor closure is the topmost structural part of a reactor module. For a pool-type fast reactor it is an especially important structure because it provides the interface between the primary coolant system and the main access area above the closure. The reactor closure comprises a stationary deck, a rotatable plug, the boundary elements of primary system and containment penetrations for equipment and auxiliary systems. This paper evaluates two different reactor closure design concepts, referred to as ''warm'' deck and ''hot'' deck, for a pool-type fast reactor with respect to their design features, technical merits, and economic benefits. The evaluation also includes functional, structural, and thermal analyses of the two deck design concepts. Issues related to their fabrication and shipping to the plant site are also addressed. The warm deck is a thick solid steel plate with under-the-deck insulation consisting of many layers of steel plates. The hot deck is a box-type structure consisting of a bottom plate reinforced with vertical ribs and cylinders. For insulation and radiation shielding, the region of the hot deck above the bottom plate is filled with steel balls. Conventional insulation is added on the top to further reduce heat loss into area above the deck. The design choice of the closure deck is strongly dependent on design features of the reactor; especially on the reactor module support. While the warm deck is preferable with the top support, the hot deck is better suited for the bottom support design of the module.

Chung, H.; Seidensticker, R.W.; Kann, W.J.; Bump, T.R.; Schatmeier, C.

1986-01-01T23:59:59.000Z

434

Method for using fast fluidized bed dry bottom coal gasification  

DOE Patents (OSTI)

Carbonaceous solid material such as coal is gasified in a fast fluidized bed gasification system utilizing dual fluidized beds of hot char. The coal in particulate form is introduced along with oxygen-containing gas and steam into the fast fluidized bed gasification zone of a gasifier assembly wherein the upward superficial gas velocity exceeds about 5.0 ft/sec and temperature is 1500.degree.-1850.degree. F. The resulting effluent gas and substantial char are passed through a primary cyclone separator, from which char solids are returned to the fluidized bed. Gas from the primary cyclone separator is passed to a secondary cyclone separator, from which remaining fine char solids are returned through an injection nozzle together with additional steam and oxygen-containing gas to an oxidation zone located at the bottom of the gasifier, wherein the upward gas velocity ranges from about 3-15 ft/sec and is maintained at 1600.degree.-200.degree. F. temperature. This gasification arrangement provides for increased utilization of the secondary char material to produce higher overall carbon conversion and product yields in the process.

Snell, George J. (Fords, NJ); Kydd, Paul H. (Lawrenceville, NJ)

1983-01-01T23:59:59.000Z

435

Fast neutron dosimeter using Cooled Optically Stimulated Luminescence (COSL)  

SciTech Connect

Data is presented that demonstrates the concept of a fast neutron dosimeter using Cooled Optically Stimulated Luminescence. CaF{sub 2}:Mn powder, compounded with polyethylene, was injection molded and pressed into 0.1-cm-thick sheets. The sheets were then cut to form dosimeters with dimensions, 1.25 cm by 1.25 cm. After a laser anneal, the dosimeters were exposed to various amounts (from 10 mSv to 100 mSv) of fast {sup 252}Cf neutrons. The exposed dosimeters were cooled to liquid nitrogen temperature, stimulated with laser light, and then allowed to warm up to room temperature whereupon the dose dependent luminescence was recorded with a photon counting system. When the control and gamma components were subtracted from the {sup 252}Cf response, a dose-dependent neutron response was observed. The design, construction, and preliminary performance of an automated system for the dose interrogation of individual CaF{sub 2}:Mn grains within the polyethylene matrix will also be discussed. The system uses a small CO{sub 2} laser to heat areas of the cooled dosimeter to room temperature. If the readout of very small grain within the plastic matrix is successful, it will enhance the neutron to gamma response of the dosimeter.

Eschbach, P.A.; Miller, S.D.

1991-10-01T23:59:59.000Z

436

Integral Fast Reactor: A future source of nuclear energy  

SciTech Connect

Argonne National Laboratory is developing a reactor concept that would be an important part of the worlds energy future. This report discusses the Integral Fast Reactor (IFR) concept which provides significant improvements over current generation reactors in reactor safety, plant complexity, nuclear proliferation, and waste generation. Two major facilities, a reactor and a fuel cycle facility, make up the IFR concept. The reactor uses fast neutrons and metal fuel in a sodium coolant at atmospheric pressure that relies on laws of physics to keep it safe. The fuel cycle facility is a hot cell using remote handling techniques for fabricating reactor fuel. The fuel feed stock includes spent fuel from the reactor, and potentially, spent light water reactor fuel and plutonium from weapons. This paper discusses the unique features of the IFR concept and the differences the quality assurance program has from current commercial practices. The IFR concept provides an opportunity to design a quality assurance program that makes use of the best contemporary ideas on management and quality.

Southon, R.

1993-09-01T23:59:59.000Z

437

Exploring the Fast Ignition Approach to Fusion Energy  

DOE Green Energy (OSTI)

Probably the most famous equation in physics is Einstein's E=mc{sup 2}, which was contained within his fifth and final paper that was published in 1905. It is this relationship between energy ( E) and mass ( m) that the fusion process exploits to generate energy. When two isotopes of hydrogen (normally Deuterium and Tritium (DT)) fuse they form helium and a neutron. In this process some of the mass of the hydrogen is converted into energy. In the fast ignition approach to fusion a large driver (such as the NIF laser) is used to compress the DT fuel to extremely high densities and then is ''sparked'' by a high intensity, short-pulse laser. The short-pulse laser energy is converted to an electron beam, which then deposits its energy in the DT fuel. The energy of the electrons in this beam is so large that the electron's mass is increased according to Einstein theory of relativity. Understanding the transport of this relativistic electron beam is critical to the success of fast ignition and is the subject of this poster.

Town, R J; Chung, H; Cottrill, L A; Foord, M; Hatchett, S P; Key, M H; Langdon, A B; Lasinski, B F; Lund, S; Mackinnon, A J; McCandless, B C; Patel, P K; Sharp, W L; Snavely, R A; Still, C H; Tabak, M

2005-04-18T23:59:59.000Z

438

UPGRADING METHANE USING ULTRA-FAST THERMAL SWING ADSORPTION  

SciTech Connect

The purpose of this project is to design and demonstrate an approach to upgrade low-BTU methane streams from coal mines to pipeline-quality natural gas. The objective of Phase I of the project was to assess the feasibility of upgrading low-Btu methane streams using ultra-fast thermal swing adsorption (TSA) using Velocys' modular microchannel process technology. The project is on schedule and under budget. For Task 1.1, the open literature, patent information, and vendor contacts were surveyed to identify adsorbent candidates for experimental validation and subsequent demonstration in an MPT-based ultra-fast TSA separation for methane upgrading. The leading candidates for preferential adsorption of methane over nitrogen are highly microporous carbons. A Molecular Gate{trademark} zeolite from Engelhard Corporation has emerged as a candidate. For Task 1.2, experimental evaluation of adsorbents was initiated, and data were collected on carbon (MGN-101) from PICA, Inc. This carbon demonstrated a preferential capacity for methane over nitrogen, as well as a reasonable thermal swing differential capacity for a 90% methane and 10% nitrogen mixture. A similar methane swing capacity at 2 psig was measured. The mixture composition is relevant because gob gas contains nearly 85% methane and must be purified to 97% methane for pipeline quality.

Anna Lee Tonkovich

2004-01-01T23:59:59.000Z

439

FastQuery: A Parallel Indexing System for Scientific Data  

SciTech Connect

Modern scientific datasets present numerous data management and analysis challenges. State-of-the- art index and query technologies such as FastBit can significantly improve accesses to these datasets by augmenting the user data with indexes and other secondary information. However, a challenge is that the indexes assume the relational data model but the scientific data generally follows the array data model. To match the two data models, we design a generic mapping mechanism and implement an efficient input and output interface for reading and writing the data and their corresponding indexes. To take advantage of the emerging many-core architectures, we also develop a parallel strategy for indexing using threading technology. This approach complements our on-going MPI-based parallelization efforts. We demonstrate the flexibility of our software by applying it to two of the most commonly used scientific data formats, HDF5 and NetCDF. We present two case studies using data from a particle accelerator model and a global climate model. We also conducted a detailed performance study using these scientific datasets. The results show that FastQuery speeds up the query time by a factor of 2.5x to 50x, and it reduces the indexing time by a factor of 16 on 24 cores.

Chou, Jerry; Wu, Kesheng; Prabhat,

2011-07-29T23:59:59.000Z

440

The accuracy of fast phylogenetic methods for large datasets  

E-Print Network (OSTI)

Whole-genome phylogenetic studies require various sources of phylogenetic signals to produce an accurate picture of the evolutionary history of a group of genomes. In particular, sequence-based reconstruction will play an important role, especially in resolving more recent events. But using sequences at the level of whole genomes means working with very large amounts of data—large numbers of sequences—as well as large phylogenetic distances, so that reconstruction methods must be both fast and robust as well as accurate. We study the accuracy, convergence rate, and speed of several fast reconstruction methods: neighbor-joining, Weighbor (a weighted version of neighbor-joining), greedy parsimony, and a new phylogenetic reconstruction method based on diskcovering and parsimony search (DCM-NJ+MP). Our study uses extensive simulations based on random birth-death trees, with controlled deviations from ultrametricity. We find that Weighbor, thanks to its sophisticated handling of probabilities, outperforms other methods for short sequences, while our new method is the best choice for sequence lengths above 100. For very large sequence lengths, all four methods have similar accuracy, so that the speed of neighbor-joining and greedy parsimony makes them the two methods of choice. 1

Luay Nakhleh; Bernard M. E; Moret Usman Roshan; Katherine St; John Jerry; Sun Tandy Warnow

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Questions and Answers - How fast do electrons move?  

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

If things are made from atoms, why dodifferent things have different properties? If things are made from atoms, why do<br>different things have different properties? Previous Question (If things are made from atoms, why do different things have different properties?) Questions and Answers Main Index Next Question (What do we use to measure mass?) What do we use to measure mass? How fast do electrons move? As fast as you can get them going! Well not quite. One of the facts of life discovered in the 20th century is that the speed of light (300,000 kilometers per second) is the ultimate speed limit. As you add energy to the electron, it will go faster, but as you get it to go close to the speed of light, you find that you have to add even more energy just to bump it a bit faster. For example, with just over 220,000 eV (which stands for a

442

Seismic Loading for FAST: May 2011 - August 2011  

DOE Green Energy (OSTI)

As more wind farms are constructed in seismically active regions, earthquake loading increases in prominence for design and analysis of wind turbines. Early investigation of seismic load tended to simplify the rotor and nacelle as a lumped mass on top of the turbine tower. This simplification allowed the use of techniques developed for conventional civil structures, such as buildings, to be easily applied to wind turbines. However, interest is shifting to more detailed models that consider loads for turbine components other than the tower. These improved models offer three key capabilities in consideration of base shaking for turbines: 1) The inclusion of aerodynamics and turbine control; 2) The ability to consider component loads other than just tower loads; and 3) An improved representation of turbine response in higher modes by reducing modeling simplifications. Both experimental and numerical investigations have shown that, especially for large modern turbines, it is important to consider interaction between earthquake input, aerodynamics, and operational loads. These investigations further show that consideration of higher mode activity may be necessary in the analysis of the seismic response of turbines. Since the FAST code is already capable of considering these factors, modifications were developed that allow simulation of base shaking. This approach allows consideration of this additional load source within a framework, the FAST code that is already familiar to many researchers and practitioners.

Asareh, M. A.; Prowell, I.

2012-08-01T23:59:59.000Z

443

Origins of the slow and the ubiquitous fast solar wind  

E-Print Network (OSTI)

We present in this Letter the first coordinated radio occultation measurements and ultraviolet observations of the inner corona below 5.5 Rs, obtained during the Galileo solar conjunction in January 1997, to establish the origin of the slow solar wind. Limits on the flow speed are derived from the Doppler dimming of the resonantly scattered componentof the oxygen 1032 A and 1037 A lines as measured with the UltraViolet Coronagraph Spectrometer (UVCS) on the Solar and Heliospheric Observatory (SOHO). White light images of the corona from the Large Angle Spectroscopic Coronagraph (LASCO) on SOHO taken simultaneously are used to place the Doppler radio scintillation and ultraviolet measurements in the context ofcoronal structures. These combined observations provide the first direct confirmation of the view recently proposed by Woo and Martin (1997) that the slow solar wind is associated with the axes, also known as stalks, of streamers. Furthermore, the ultraviolet observations also show how the fast solar wind is ubiquitous in the inner corona, and that a velocity shear between the fast and slow solar wind develops along the streamer stalks.

S. R. Habbal; R. Woo; S. Fineschi; R. O'Neal; J. Kohl; G. Noci; C. Korendyke

1997-09-03T23:59:59.000Z

444

Advanced Fuel Cycle Economic Analysis of Symbiotic Light-Water Reactor and Fast Burner Reactor Systems  

Science Conference Proceedings (OSTI)

The Advanced Fuel Cycle Economic Analysis of Symbiotic Light-Water Reactor and Fast Burner Reactor Systems, prepared to support the U.S. Advanced Fuel Cycle Initiative (AFCI) systems analysis, provides a technology-oriented baseline system cost comparison between the open fuel cycle and closed fuel cycle systems. The intent is to understand their overall cost trends, cost sensitivities, and trade-offs. This analysis also improves the AFCI Program’s understanding of the cost drivers that will determine nuclear power’s cost competitiveness vis-a-vis other baseload generation systems. The common reactor-related costs consist of capital, operating, and decontamination and decommissioning costs. Fuel cycle costs include front-end (pre-irradiation) and back-end (post-iradiation) costs, as well as costs specifically associated with fuel recycling. This analysis reveals that there are large cost uncertainties associated with all the fuel cycle strategies, and that overall systems (reactor plus fuel cycle) using a closed fuel cycle are about 10% more expensive in terms of electricity generation cost than open cycle systems. The study concludes that further U.S. and joint international-based design studies are needed to reduce the cost uncertainties with respect to fast reactor, fuel separation and fabrication, and waste disposition. The results of this work can help provide insight to the cost-related factors and conditions needed to keep nuclear energy (including closed fuel cycles) economically competitive in the U.S. and worldwide. These results may be updated over time based on new cost information, revised assumptions, and feedback received from additional reviews.

D. E. Shropshire

2009-01-01T23:59:59.000Z

445

Slowing-in distribution of fast particles released in Maxwellian plasma  

SciTech Connect

The time-independent slowing-in distribution is evaluated for a fast beam of test particles released in an infinite Maxwellian plasma background for various situations including quantum-mechanical and classical scattering regimes. The analysis involves considerations of small angle deflection and large angle scattering events. The results are determined for plasma electrons with thermal velocities larger or smaller than the test particle and plasma ions with thermal velocities lower than the test particle. When plasma electrons and ions are slow the slowing-in distribution behaves as E/sub j//sup $sup 1$/$sub 2$/, where E/sub j/ is the test particle energy. When plasma electrons are faster than the test particles, the high-energy tail acquires a 1/E/sub j/ shape. The origin of the test particle remains arbitrary and hence the results apply for particles produced by fusion events within the plasma proper and for particles externally injected. The total energy distribution is obtained and normalized, and ranges of validity are determined. The calculations are of the Boltzmann type, which is consistent with binary scattering models. The slowing-in distributions are also obtained from the Fokker--Planck equation, and as expected, the results agree with those obtained from the Boltzmann equation for large angle scattering only. (auth)

Husseiny, A.A.; Sabri, Z.A.; Harris, D.R.

1975-05-01T23:59:59.000Z

446

CX-010250: Categorical Exclusion Determination | Department of Energy  

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

50: Categorical Exclusion Determination 50: Categorical Exclusion Determination CX-010250: Categorical Exclusion Determination The South Bend Public Transportation corporation Bus Operations Center and Maintenance Center, South Bend CX(s) Applied: A9, B5.22 Date: 03/25/2013 Location(s): Indiana Offices(s): Golden Field Office The South Bend Public Transportation Corporation (TRANSPO) would utilize the U.S. Department of Energy (DOE) and cost share funds for contractual/vendor costs associated with the construction of a public-private fast-fill Compressed Natural Gas fueling station on the site of TRANSPO's existing Administration, Maintenance, and Operations building in partnership with the City of South Bend. CX-010250.pdf More Documents & Publications CX-010254: Categorical Exclusion Determination

447

CX-005124: Categorical Exclusion Determination | Department of Energy  

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

5124: Categorical Exclusion Determination 5124: Categorical Exclusion Determination CX-005124: Categorical Exclusion Determination Electric Vehicle Charging Stations CX(s) Applied: B5.1 Date: 01/25/2011 Location(s): Oregon Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The State of Oregon will provide $700,000 in Recovery Act funds to the Oregon Department of Transportation's Office of Innovative Partnerships to install (16) level 3 fast-charge electric vehicle (EV) charging stations at (8) locations along the Interstate 5 corridor between Eugene and the California border. While charging station interchanges have been preliminarily determined based on 25-mile increments in the 200-mile scope of the I-5 corridor, the exact location of the EV charging stations at each interchange is not known at this time.

448

CX-002539: Categorical Exclusion Determination | Department of Energy  

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

39: Categorical Exclusion Determination 39: Categorical Exclusion Determination CX-002539: Categorical Exclusion Determination Fast Neutron Irradiation and Subsequent Characterization of Carbides CX(s) Applied: B3.6 Date: 05/05/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Sub-size samples of MAX Phase and other carbides will be irradiated in the Savannah River National Laboratory concentration factor facility. Samples will be irradiated for varying periods of time to determine microstructural and property changes. Time periods will be from one month to potentially over a year. After irradiation, the samples will be characterized by techniques including resistivity, transmission electron microscopy, x-ray diffraction, and tensile testing. Upon completion of characterization, the

449

Categorical Exclusion Determinations: Environmental Management...  

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

Environmental Management Categorical Exclusion Determinations: Environmental Management Categorical Exclusion Determinations issued by Environmental Management. DOCUMENTS AVAILABLE...

450

Determination of Requirements for Smooth Operating Mode Transition and Development of a Fast Islanding Detection Technique for Microgrids.  

E-Print Network (OSTI)

??Opportunities for enhancing the security and reliability of power supply as well as the utilization of renewable and efficient energy sources have generated major interest… (more)

Widanagama Arachchige, Lidula Nilakshi

2012-01-01T23:59:59.000Z

451

FAST 1.0 - Flow Path Analysis for Steam Turbines, Version 1.0  

Science Conference Proceedings (OSTI)

FAST Software Flow Analysis of Steam Turbines is a tool for performance engineers, designers and financial analysts. This tool is for industry use by utilities and manufacturers to evaluate thermal performance characteristics of existing and proposed turbine steam-path modifications/upgrades. Description The FAST software diagnoses performance problems and facilitates the economic evaluation of steam-path upgrade options. FAST software is used primarily by the thermal performance engineer in both fossil ...

2007-05-30T23:59:59.000Z

452

A 16-Bit by 16-Bit MAC Design Using Fast 5: 3 Compressor Cells  

Science Conference Proceedings (OSTI)

3:2 counters and 4:2 compressors have been widely used for multiplier implementations. In this paper, a fast 5:3 compressor is derived for high-speed multiplier implementations. The fast 5:3 compression is obtained by applying two rows of fast 2-bit ... Keywords: 3:2 counter, 4:2 compressor, 5:2 compressor, 5:3 compressor, MAC, multiplier

Ohsang Kwon; Kevin Nowka; Earl E. Swartzlander, Jr.

2002-06-01T23:59:59.000Z

453

THE EFFECTS OF WAVE ESCAPE ON FAST MAGNETOSONIC WAVE TURBULENCE IN SOLAR FLARES  

Science Conference Proceedings (OSTI)

One of the leading models for electron acceleration in solar flares is stochastic acceleration by weakly turbulent fast magnetosonic waves ({sup f}ast waves{sup )}. In this model, large-scale flows triggered by magnetic reconnection excite large-wavelength fast waves, and fast-wave energy then cascades from large wavelengths to small wavelengths. Electron acceleration by large-wavelength fast waves is weak, and so the model relies on the small-wavelength waves produced by the turbulent cascade. In order for the model to work, the energy cascade time for large-wavelength fast waves must be shorter than the time required for the waves to propagate out of the solar-flare acceleration region. To investigate the effects of wave escape, we solve the wave kinetic equation for fast waves in weak turbulence theory, supplemented with a homogeneous wave-loss term. We find that the amplitude of large-wavelength fast waves must exceed a minimum threshold in order for a significant fraction of the wave energy to cascade to small wavelengths before the waves leave the acceleration region. We evaluate this threshold as a function of the dominant wavelength of the fast waves that are initially excited by reconnection outflows.

Pongkitiwanichakul, Peera; Chandran, Benjamin D. G. [Space Science Center and Department of Physics, University of New Hampshire, Durham, NH 03824 (United States); Karpen, Judith T. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); DeVore, C. Richard, E-mail: pbu3@unh.edu, E-mail: benjamin.chandran@unh.edu, E-mail: judy.karpen@nasa.gov, E-mail: devore@nrl.navy.mil [Naval Research Laboratory, Washington, DC 20375 (United States)

2012-09-20T23:59:59.000Z

454

Low-Latency Communication over Fast Ethernet Matt Welsh, Anindya Basu, and Thorsten von Eicken  

E-Print Network (OSTI)

://www.cs.cornell.edu/Info/Projects/U-Net Abstract Fast Ethernet (100Base-TX) can provide a low-cost alternative to more esoteric network tech

455

Fast Flux Test Reactor: Re-evaluation of the Department's Approach...  

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

Sites Power Marketing Administration Other Agencies You are here Home Fast Flux Test Reactor: Re-evaluation of the Department's Approach to Deactivation, Decontamination,...

456

Body Mass Index, Neighborhood Fast Food and Restaurant Concentration, and Car Ownership  

E-Print Network (OSTI)

VW. Weight status and restaurant availability: a multilevelL, MacIntyre S. McDonald's restaurants and neighborhoodprevalence of fast food restaurants: state- level analysis.

Inagami, Sanae; Cohen, Deborah A.; Brown, Arleen F.; Asch, Steven M.

2009-01-01T23:59:59.000Z

457

Direct Current Fast Charger System Characterization: Standards, Penetration Potential, Testing, and Performance Evaluation  

Science Conference Proceedings (OSTI)

The importance of direct current (dc) fast charging of plug-in electric vehicles (PEVs) is expected to grow in the near future. This report presents a brief overview of the various standards and protocols in use and in development along with a market assessment of various dc fast chargers and compatible vehicles planned. Modeling and analysis were performed to evaluate the penetration of dc fast chargers based on vehicle driving patterns, region, and charger power. A 200-V, three-phase fast charger was i...

2011-12-14T23:59:59.000Z

458

Safety and core design of large liquid-metal cooled fast breeder reactors  

E-Print Network (OSTI)

well known from basic reactor theory, the flux distributionof a fast reactor using the perturbation theory”. In: Atomicbeam theory and are not specific to a nuclear reactor core.

Qvist, Staffan Alexander

2013-01-01T23:59:59.000Z

459

Application of the technology neutral framework to sodium cooled fast reactors.  

E-Print Network (OSTI)

??Sodium cooled fast reactors (SFRs) are considered as a novel example to exercise the Technology Neutral Framework (TNF) proposed in NUREG- 1860. One reason for… (more)

Johnson, Brian C. (Brian Carl)

2010-01-01T23:59:59.000Z

460

Evaluation of Opportunities for Load Shifting With Fast Charging at Del Monte Foods  

Science Conference Proceedings (OSTI)

Fast charging of forklift batteries in warehouse facilities may allow companies to benefit from the load-leveling initiatives of electric suppliers.

2005-10-27T23:59:59.000Z

Note: This page contains sample records for the topic "determination fast responding" 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

Temperature determination using pyrometry  

DOE Patents (OSTI)

A method for determining the temperature of a surface upon which a coating is grown using optical pyrometry by correcting Kirchhoff's law for errors in the emissivity or reflectance measurements associated with the growth of the coating and subsequent changes in the surface thermal emission and heat transfer characteristics. By a calibration process that can be carried out in situ in the chamber where the coating process occurs, an error calibration parameter can be determined that allows more precise determination of the temperature of the surface using optical pyrometry systems. The calibration process needs only to be carried out when the physical characteristics of the coating chamber change.

Breiland, William G. (Albuquerque, NM); Gurary, Alexander I. (Bridgewater, NJ); Boguslavskiy, Vadim (Princeton, NJ)

2002-01-01T23:59:59.000Z

462

Small Modular Fast Reactor Design Description Joint Effort  

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

July 1, 2005 ANL-SMFR-1 July 1, 2005 ANL-SMFR-1 Small Modular Fast Reactor Design Description Joint Effort by Argonne National Laboratory (ANL) Commissariat a l'Energie Atomique (CEA) and Japan Nuclear Cycle Development Institute (JNC) Project Leaders Y. I. Chang and C. Grandy, ANL P. Lo Pinto, CEA M. Konomura, JNC Technical Contributors ANL: J. Cahalan, F. Dunn, M. Farmer, S. Kamal, L. Krajtl, A. Moisseytsev, Y. Momozaki, J. Sienicki, Y. Park, Y. Tang, C. Reed, C. Tzanos, S. Wiedmeyer, and W. Yang CEA: P. Allegre, J. Astegiano, F. Baque, L. Cachon, M. S. Chenaud, J-L Courouau, Ph. Dufour, J. C. Klein, C. Latge, C. Thevenot, and F. Varaine JNC: M. Ando, Y. Chikazawa, M. Nagamura, Y. Okano, Y. Sakamoto,

463

An effective loading method of americium targets in fast reactors  

Science Conference Proceedings (OSTI)

Recently, the development of target fuel with high americium (Am) content has been launched for the reduction of the overall fuel fabrication cost of the minor actinide (MA) recycling. In the framework of the development, this study proposes an effective loading method of Am targets in fast reactors. As a result of parametric survey calculations, we have found the ring-shaped target loading pattern between inner and outer core regions. This loading method is satisfactory both in core characteristics and in MA transmutation property. It should be noted that the Am targets can contribute to the suppression of the core power distribution change due to burnup. The major drawback of Am target is the production of helium gas. A target design modification by increasing the cladding thickness is found to be the most feasible measure to cope with the helium production. (authors)

Ohki, Shigeo; Sato, Isamu; Mizuno, Tomoyasu; Hayashi, Hideyuki; Tanaka, Kenya [Japan Atomic Energy Agency, 4002, Narita-cho, O-arai-machi, Higashi-Ibaraki-gun, Ibaraki 311-1393 (Japan)

2007-07-01T23:59:59.000Z

464

LZfuzz: a fast compression-based fuzzer for poorly  

E-Print Network (OSTI)

Computers make very fast, very accurate mistakes. From a refrigerator magnet. Real-world infrastructure offers many scenarios where protocols (and other details) are not released due to being considered too sensitive or for other reasons. This situation makes it hard to apply fuzzing techniques to test their security and reliability, since their full documentation is only available to their developers, and domain developer expertise does not necessarily intersect with fuzz-testing expertise (nor deployment responsibility). State-of-the-art fuzzing techniques, however, work best when protocol specifications are available. Still, operators whose networks include equipment communicating via proprietary protocols should be able to reap the benefits of fuzz-testing them. In particular, administrators should be able to test proprietary protocols in the absence of end-to-end application-level encryption to understand whether they

Documented Protocols; Sergey Bratus Axel Hansen

2008-01-01T23:59:59.000Z

465

METHOD AND APPARATUS FOR IMPROVING PERFORMANCE OF A FAST REACTOR  

DOE Patents (OSTI)

A specific arrangement of the fertile material and fissionable material in the active portion of a fast reactor to achieve improvement in performance and to effectively lower the operating temperatures in the center of the reactor is described. According to this invention a group of fuel elements containing fissionable material are assembled to form a hollow fuel core. Elements containing a fertile material, such as depleted uranium, are inserted into the interior of the fuel core to form a central blanket. Additional elemenis of fertile material are arranged about the fuel core to form outer blankets which in tunn are surrounded by a reflector. This arrangement of fuel core and blankets results in substantial flattening of the flux pattern.

Koch, L.J.

1959-01-20T23:59:59.000Z

466

A fast algorithm for the linear canonical transform  

E-Print Network (OSTI)

In recent years there has been a renewed interest in finding fast algorithms to compute accurately the linear canonical transform (LCT) of a given function. This is driven by the large number of applications of the LCT in optics and signal processing. The well-known integral transforms: Fourier, fractional Fourier, bilateral Laplace and Fresnel transforms are special cases of the LCT. In this paper we obtain an O(N*Log N) algorithm to compute the LCT by using a chirp-FFT-chirp transformation yielded by a convergent quadrature formula for the fractional Fourier transform. This formula gives a unitary discrete LCT in closed form. In the case of the fractional Fourier transform the algorithm computes this transform for arbitrary complex values inside the unitary circle and not only at the boundary. In the case of the ordinary Fourier transform the algorithm improves the output of the FFT.

Campos, Rafael G

2009-01-01T23:59:59.000Z

467

RISE: a fast-readout imager for exoplanet transit timing  

E-Print Network (OSTI)

By the precise timing of the low amplitude (0.005 - 0.02 magnitude) transits of exoplanets around their parent star it should be possible to infer the presence of other planetary bodies in the system down to Earth-like masses. We describe the design and construction of RISE, a fast-readout frame transfer camera for the Liverpool Telescope designed to carry out this experiment. The results of our commissioning tests are described as well as the data reduction procedure necessary. We present light curves of two objects, showing that the desired timing and photometric accuracy can be obtained providing that autoguiding is used to keep the target on the same detector pixel for the entire (typically 4 hour) observing run.

I. A. Steele; S. D. Bates; N. Gibson; F. Keenan; J. Meaburn; C. J. Mottram; D. Pollacco; I. Todd

2008-09-19T23:59:59.000Z