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We encourage you to perform a real-time search of NLEBeta
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1

Internships Give Nuclear Technician Students Hands-on Experience...  

Broader source: Energy.gov (indexed) [DOE]

Internships Give Nuclear Technician Students Hands-on Experience Internships Give Nuclear Technician Students Hands-on Experience August 9, 2012 - 2:23pm Addthis Brandalin Barnes,...

2

Hands-on experience Five pillars to a Wayne State  

E-Print Network [OSTI]

by the U.S. Department of Energy and General Motors. The team successfully earned its spot in the secondHands-on experience Five pillars to a Wayne State College of Engineering education: t Experiential in national engineering competitions, building everything from Formula-style racecars to robots to concrete

Berdichevsky, Victor

3

Internships Help Future Energy Leaders Gain Hands-On Experience |  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA,Fermi NationalBusinessDepartment ofEnergyDepartment of Energy

4

Columbia University Opportunities to Gain Experience  

E-Print Network [OSTI]

Columbia University Opportunities to Gain Experience There are myriad ways to build experience Sciences at Columbia University offers on-campus research opportunities for the summer term Dec. 13 - March careereducation.columbia.edu Join LionSHARE ­ CCE's internship/job board Double Discovery Center Volunteer

Shepard, Kenneth

5

Columbia University Opportunities to Gain Experience  

E-Print Network [OSTI]

Columbia University Opportunities to Gain Experience There are so many ways to build experience The Columbia University Office of Government and Community Affairs provides assistance to undergraduates.edu/academics/research/science Summer Undergraduate Research Fellowship The Department of Biological Sciences at Columbia University

Hone, James

6

Columbia University Opportunities to Gain Experience  

E-Print Network [OSTI]

Columbia University Opportunities to Gain Experience There are so many ways to build experience Program The Columbia University Office of Government and Community Affairs provides assistance.edu/academics/research/science Summer Undergraduate Research Fellowship The Department of Biological Sciences at Columbia University

Hone, James

7

NSF Students Gain Hands-on Experience in Neutron Sciences at ORNL |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions andData andFleet Test andFieldSubscribeJefferson Lab February

8

Gain International Work Experience in China  

E-Print Network [OSTI]

Gain International Work Experience in China www.StudyCLI.org "The CLI internship gave me a huge boost both personally and professionally. At 21 years old, I've lived in China and can speak basic city of Guilin, China. CLIinternsengageinadynamicrangeofprojects: Y Establishnewrelationshipswith

Virginia Tech

9

How the “HYPATIA” analysis tool is used as a hands-on experience to introduce HEP to high schools  

E-Print Network [OSTI]

HYPATIA'' is a tool for interactive analysis of data from the ATLAS experiment at the Large Hadron Collider of CERN. It has been created by the authors and has been evolving over a number of years. It is available in a dowloadable version, which is regularly used in the International Masterclasses, and an online version which now exists in the form of a webapp. Furthermore, the data from ATLAS, which are necessary for performing different educational analysis paths, are available online. Such examples of interactive analyses vary from the estimation of the magnetic field of the ATLAS solenoid magnet, to detecting \\textquotedblleft pseudo\\textquotedblright~ Higgs events. These applications have been used in recent years in a large number of schools in the form of a half-day mini local (or even remote) masterclass. These activities have been supported by various European Union outreach programs which give emphasis to promoting science education in schools through new methods based on the inquiry based technique...

The ATLAS collaboration

2015-01-01T23:59:59.000Z

10

Susan Murabana - Astronomer, Global Hands On Universe  

ScienceCinema (OSTI)

Susan Murabana is working to bring astronomy education to Africa through Global Hands-On Universe, a program founded by Berkeley Lab astronomer Carl Pennypacker.

Murabana, Susan

2013-05-29T23:59:59.000Z

11

Daily routines of body mass gain in birds: 2. An experiment with reduced food availability  

E-Print Network [OSTI]

; published online 31 July 2006; MS. number: 8608R) Theoretical models predict that small birds should adjust daily patterns of body mass gain in response to environmental and internal factors. In a companion paper, we described a model on daily fattening that allows the analysis of precise changes in the shape

Carrascal, Luis M.

12

Webinar: Hands-on Energy Literacy | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Webinar: Hands-on Energy Literacy Webinar: Hands-on Energy Literacy March 12, 2014 11:30PM EDT to March 13, 2014 12:30AM EDT As part of the Will Steger Foundation's Climate and...

13

Gaining Experience Experiential Learning  

E-Print Network [OSTI]

Impact Analyst Ecologist Environmental Affairs Manager Environmental Educator Environmental Engineer://jobs.environmentamerica.org/page/ amr/internships-make-difference Environmental Career Opportunities http://www.ecojobs.com/environmental- internships.htm Florida Dept. of Environmental Protection http://www.dep.state.fl.us/careers/ careers

Wu, Shin-Tson

14

Gaining Experience Experiential Learning  

E-Print Network [OSTI]

Raiser Grass Roots Coordinator Environmental Lawyer Environmental Impact Analyst Ecologist Environmental http://www.cdc.gov/nceh/ehs/Resources/ internship.htm Florida Environmental Internships http://www.fiu.edu/~envstud/ internships.htm Environmental Career Opportunities http://www.ecojobs.com/environmental- internships

Van Stryland, Eric

15

Farm to School Hands on Chef Training and  

E-Print Network [OSTI]

Farm to School Hands on Chef Training and Smarter Lunchrooms Finding it a challenge to meet the new? We have just the thing for you! 4-6 hours* of hands-on training for District Food Service Managers and staff · Training provided by Chef David Bearl, Certified Culinary Educator and Certified Chef de Cuisine

Florida, University of

16

Effects of non-preferred hand on control movement stereotypes  

E-Print Network [OSTI]

90 were right handed. Of the 120 subjects, only 3 were female. Ex eri mental Desi n To investigate the effects of the non-preferred hand on stereo- types, the on and off positioning regulations from the U. S. MIL- HDBK-759, (March 12, 1975... in the recommendations section. The second hypothesis was that the use of the non-preferred hand would cause unacceptable reversal errors due to a weakening of the stereotypes. The conclusion here is that the use of the non-preferred hand does reduce somewhat...

Lenz, Richard Lee

1982-01-01T23:59:59.000Z

17

Hands-On Lessons in Clean Energy | Department of Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky9, 2010 The meetingand Eric Edlund | Princeton PlasmaHands-On

18

Providing Nuclear Criticality Safety Analysis Education through Benchmark Experiment Evaluation  

SciTech Connect (OSTI)

One of the challenges that today's new workforce of nuclear criticality safety engineers face is the opportunity to provide assessment of nuclear systems and establish safety guidelines without having received significant experience or hands-on training prior to graduation. Participation in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) and/or the International Reactor Physics Experiment Evaluation Project (IRPhEP) provides students and young professionals the opportunity to gain experience and enhance critical engineering skills.

John D. Bess; J. Blair Briggs; David W. Nigg

2009-11-01T23:59:59.000Z

19

15th Biennial University/Government/Industry Microelectronics Symposium, Boise, Idaho, June 30 -July 2, 2003. Hands-On MEMS  

E-Print Network [OSTI]

- July 2, 2003. Hands-On MEMS Luc Frechette1 , Vijay Modi1 , Floyd Miller2 and K. R. Farmer3 1Dept are currently refining the curriculum to allow the course to be easily adopted by other schools. 1. INTRODUCTION range of majors, and a concomitant demand by potential employers for graduates with MEMS experience

Frechette, Luc G.

20

Hands-on astronomy activities for the elementary school  

SciTech Connect (OSTI)

We held a series of astronomy workshops for local school teachers using astronomy activities from a course we give for Elementary Education majors. The school teachers provide us with feedback about successes and failures. Then we try the revised activities in the classroom. Via this in-service and pre-service feedback, the astronomy laboratory activities in the course have been completely revised over the last three years. The activities we use are almost entirely hands-on. The activities include use of log book (or journal) for describing outside-of-class observations of sunsets, phases of the moon, portable sundial, and the somewhat unique method we use to teach the constellations. In addition, all laboratory activity records are kept in the log book. Laboratory activities cover the use of fists to measure degrees, constellations, phases of the moon, relative distances and size of planets, Invent an Alien, lenses, images and telescopes, and the making of a comet. In our poster, based roughly on the theme of the seasons, we will describe a portable, multi-user sundial, length of the day display using newspaper data, two temperature/season activities, and a model demonstration of why the sundial shadows behave as they do.

Lutz, T.E.; Horne, J.C. [Washington State Univ., Pullman, WA (United States)

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

Combined cycle power plant of SVZ Schwarze Pumpe GmbH operating experience gained with low calorific value fuel resulting from gasification processes  

SciTech Connect (OSTI)

Supported by experience gained over many years, Schwarze Pumpe GmbH (SVZ), the secondary raw material recycling centre, operates autothermal compression-type gasification plants with oxygen according to the fixed-bed and the entrained flow process, in which apart from lignite as the fuel to be gasified, residues containing C/H of varying consistency are gasified in an environmentally friendly manner. The purified gas acquired after scrubbing, partial conversion and desulfurization is mainly used as a synthesis gas for methanol synthesis and thus provided with a material use. For covering auxiliary requirements in electrical and process power, a combined-cycle power plant is operated, the main fuel of which is a low calorific value dual-process gas, primarily consisting of purified and purge gas. The volumes of purified and purge gases available to the combined-cycle power plant from the SVZ process equipment and their grades cannot be influenced by the combined-cycle power plant. It is shown that from a targeted modification of the dual-process gas temperature the Wobbe Index of dual-process gases with considerably varying parameters (calorific value, density) can be brought into the range required for running the gas turbine. Furthermore what is also shown is the operating strategy and control concept by which the combined-cycle power plant can maintain the pressure in the SVZ purified gas system and thus ultimately the gasification reactor operating pressure.

Kotschenreuther, H.; Hauptmann, W.

1998-07-01T23:59:59.000Z

22

Hands-on Nanosciences J. Chevrier 1,2, A. Luciani 2, F. Marchi1,2, J.L. Florens3  

E-Print Network [OSTI]

Hands-on Nanosciences J. Chevrier 1,2, A. Luciani 2, F. Marchi1,2, J.L. Florens3 1: Institut NĂ©el specific concepts in nanosciences. A first and important observation after these experiences with a large

Boyer, Edmond

23

Photonics Explorer - An European program to foster science education with hands-on experiments  

E-Print Network [OSTI]

The Photonics Explorer program aims to equip science teachers at Europe's secondary schools free-of-charge with up-to-date educational material to really engage, excite and educate students about the fascination of working with light.

Fischer, Robert

2012-01-01T23:59:59.000Z

24

New Nuclear Energy Awards Give Students Hands-On Research Experience |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehicles »Exchange VisitorsforDepartment of EnergyFreezers

25

Experience hands-on halloween science Oct. 28 at Bradbury Science Museum  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial Thin Film XRDEvanExecutiveSRD-13

26

11th LANSCE School on Neutron Scattering | Hands-On Experiments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies | BlandinePrincetonOPT OpticsFrequently Asked Questions Whosample

27

Pipes, streams, and the user environment Hands-On Unix System Administration DeCal  

E-Print Network [OSTI]

Pipes, streams, and the user environment Hands-On Unix System Administration DeCal Lab 2 -- 10, lecture13, lecture26 with a wild- card expression. 3 Streams, redirection, and pipes 11. What is /dev to get a feel for what it does first. 3 #12;3.1 Named pipes 14. Name one difference between named pipes

Walker, Matthew P.

28

ICE Order Form Hands-On Science Kits Prices effective through September 30, 2012.  

E-Print Network [OSTI]

ICE Order Form Hands-On Science Kits Prices effective through September 30, 2012. ______ 99 Kit purchases. ICE Photochromic T-shirt (colors change in sunlight) ______ 93-002 Adult sizes ___S $_________ ______ 11-002 ICE Gift Certificate ___$25 ___$50 ___$75 ___$100 $_________ Replacement Parts, Manuals, Kit

Wisconsin at Madison, University of

29

ICE Order Form Hands-On Science Kits Prices effective through June 30, 2012.  

E-Print Network [OSTI]

ICE Order Form Hands-On Science Kits Prices effective through June 30, 2012. ______ 99-001 DNA on Solid-State Model Kit purchases. ICE Photochromic T-shirt (colors change in sunlight) ______ 93 $_________ ______ 11-002 ICE Gift Certificate ___$25 ___$50 ___$75 ___$100 $_________ Replacement Parts, Manuals, Kit

Wisconsin at Madison, University of

30

ICE Order Form Hands-On Science Kits Prices effective through December 31, 2011.  

E-Print Network [OSTI]

ICE Order Form Hands-On Science Kits Prices effective through December 31, 2011. ______ 99-001 DNA on Solid-State Model Kit purchases. ICE Photochromic T-shirt (colors change in sunlight) ______ 93 $_________ ______ 11-002 ICE Gift Certificate ___$25 ___$50 ___$75 ___$100 $_________ Replacement parts, manuals

Wisconsin at Madison, University of

31

Hands-On and Minds-On Modeling Activities to Improve Students' Conceptions of Microscopic Friction  

E-Print Network [OSTI]

Hands-On and Minds-On Modeling Activities to Improve Students' Conceptions of Microscopic Friction of microscopic friction. We will also present our investigation on the relative effectiveness of the use, it is possible to facilitate the refinement of students' ideas of microscopic friction. Keywords: friction

Zollman, Dean

32

ICE Order Form Hands-On Science Kits Prices effective through June 30, 2012.  

E-Print Network [OSTI]

ICE Order Form Hands-On Science Kits Prices effective through June 30, 2012. ______ 99-001 DNA Kit purchases. ICE Photochromic T-shirt (colors change in sunlight) ______ 93-002 Adult sizes ___S $_________ ______ 11-002 ICE Gift Certificate ___$25 ___$50 ___$75 ___$100 $_________ Replacement Parts, Manuals, Kit

Sheridan, Jennifer

33

Gaining a World View  

E-Print Network [OSTI]

tx H 2 O | pg. 26 --------------------------------------------- ???????????????????????? W hen Brandon Hartley traveled to Belgium last summer, he gained a first-hand appreciation for international soil and water issues. Hartley, a Texas A...

Wythe, Kathy

2007-01-01T23:59:59.000Z

34

"We're not in Kansas Anymore!" -A Hands-on Introduction to Nanoscience MEMs and Microfabrication  

E-Print Network [OSTI]

"We're not in Kansas Anymore!" - A Hands-on Introduction to Nanoscience MEMs and Microfabrication-on Introduction to Nanoscience It's now about a lot more, including "Micro-electro-mechanical Systems (MEMS're not in Kansas Anymore!" - A Hands-on Introduction to Nanoscience Alignment Clip Used in conjunction

Smy, Tom

35

Experience gained from equipment qualification inspections  

SciTech Connect (OSTI)

This paper describes issues which have been identified during equipment qualification inspections. Generic qualification information is discussed first, such as qualification bases, utility/supplier interfaces, file auditability, and generic environmental qualification. Next, technical strategies with specific examples are discussed. Issues covered include functional performance requirements, post accident qualification, similarity, installation and interfaces, maintenance, aging, and testing. Finally, additions and deletions to equipment qualification master lists and environmental enveloping are discussed.

Jacobus, M.J.

1986-01-01T23:59:59.000Z

36

Students gain work experience at WIPP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystalline Gallium Oxide Thin Films.

37

Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) Quality Assurance Manual  

SciTech Connect (OSTI)

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment using a personal computer running the Microsoft Windows operating system. SAPHIRE is primarily funded by the U.S. Nuclear Regulatory Commission (NRC). The role of the INL in this project is that of software developer and tester. This development takes place using formal software development procedures and is subject to quality assurance (QA) processes. The purpose of this document is to describe how the SAPHIRE software QA is performed for Version 6 and 7, what constitutes its parts, and limitations of those processes.

C. L. Smith; R. Nims; K. J. Kvarfordt; C. Wharton

2008-08-01T23:59:59.000Z

38

Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) Tutorial  

SciTech Connect (OSTI)

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) refers to a set of computer programs that were developed to create and analyze probabilistic risk assessment (PRAs). This volume is the tutorial manual for the SAPHIRE system. In this document, a series of lessons are provided that guide the user through basic steps common to most analyses preformed with SAPHIRE. The tutorial is divided into two major sections covering both basic and advanced features. The section covering basic topics contains lessons that lead the reader through development of a probabilistic hypothetical problem involving a vehicle accident, highlighting the program’s most fundamental features. The advanced features section contains additional lessons that expand on fundamental analysis features of SAPHIRE and provide insights into more complex analysis techniques. Together, these two elements provide an overview into the operation and capabilities of the SAPHIRE software.

C. L. Smith; S. T. Beck; S. T. Wood

2008-08-01T23:59:59.000Z

39

Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) GEM Manual  

SciTech Connect (OSTI)

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer running the Microsoft Windows? operating system. SAPHIRE is primarily funded by the U.S. Nuclear Regulatory Commission (NRC) and developed by the Idaho National Laboratory (INL). The INL's primary role in this project is that of software developer and tester. Using the SAPHIRE analysis engine and relational database is a complementary program called GEM. GEM has been designed to simplify using existing PRA analysis for activities such as the NRC’s Accident Sequence Precursor program. In this report, the theoretical framework behind GEM-type calculations are discussed in addition to providing guidance and examples for performing evaluations when using the GEM software. As part of this analysis framework, the two types of GEM analysis are outlined, specifically initiating event (where an initiator occurs) and condition (where a component is failed for some length of time) assessments.

C. L. Smith; J. Schroeder; S. T. Beck

2008-08-01T23:59:59.000Z

40

E-Print Network 3.0 - analogical demonstration experiment Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to Unix group) Experiment - Set of resources - Controlled by a user, shared... DETER infrastructure - Accounts & Projects Experimenting on DETER (Hands-On) - Controlling...

Note: This page contains sample records for the topic "gain hands-on experience" 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

INTERNATIONAL AND LOCAL PROJECTS SPONSORSHIPS Our international and local projects provide hands-on engineering experience for our members,  

E-Print Network [OSTI]

an efficient water purification system in the impoverished community of San Mateo, Belize. The town, which, to design and construct a water purification and distribution system. More details on the program will come's current water system. With a system that serves about 350 homes, it is failing to provide sufficient water

42

AC 2011-75: ENHANCING STUDENT LEARNING THROUGH HANDS-ON LABORATORY EXPERIMENTS ON RENEWABLE ENERGY SOURCES  

E-Print Network [OSTI]

, biology, chemistry and earth sciences. One of our goals was to introduce the basic physics and engineering was designed for engineering and non-engineering undergraduate students and did not require any advanced discipline, our assessment showed that the students with social science majors showed the most improvement

43

Comparing Student Learning in Mechanics Using Simulations and Hands-on Activities  

E-Print Network [OSTI]

performed the virtual experiment. The experiments were part of a unit on simple machines from the Co who performed the virtual experiment were able to answer questions dealing with work and potential-on activity in electric circuits [1, 2] while the two were equally effective in learning about heat

Zollman, Dean

44

MATLAB PRIMER This chapter will serve as a hands-on tutorial for beginners who are unfa-  

E-Print Network [OSTI]

Chapter 1 MATLAB PRIMER This chapter will serve as a hands-on tutorial for beginners who are unfa- miliar with MATLAB. We assume that readers have either the student edi- tion or a full version of MATLAB.1 Before reading this chapter, the reader should set up MATLAB on the computer, open the command

deYoung, Brad

45

Systems Analysis Programs for Hands-on Intergrated Reliability Evaluations (SAPHIRE) Summary Manual  

SciTech Connect (OSTI)

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer (PC) running the Microsoft Windows operating system. SAPHIRE is primarily funded by the U.S. Nuclear Regulatory Commission (NRC) and developed by the Idaho National Laboratory (INL). INL's primary role in this project is that of software developer and tester. However, INL also plays an important role in technology transfer by interfacing and supporting SAPHIRE users, who constitute a wide range of PRA practitioners from the NRC, national laboratories, the private sector, and foreign countries. SAPHIRE can be used to model a complex system’s response to initiating events and quantify associated consequential outcome frequencies. Specifically, for nuclear power plant applications, SAPHIRE can identify important contributors to core damage (Level 1 PRA) and containment failure during a severe accident which lead to releases (Level 2 PRA). It can be used for a PRA where the reactor is at full power, low power, or at shutdown conditions. Furthermore, it can be used to analyze both internal and external initiating events and has special features for transforming an internal events model to a model for external events, such as flooding and fire analysis. It can also be used in a limited manner to quantify risk in terms of release consequences to the public and environment (Level 3 PRA). SAPHIRE also includes a separate module called the Graphical Evaluation Module (GEM). GEM is a special user interface linked to SAPHIRE that automates the SAPHIRE process steps for evaluating operational events at commercial nuclear power plants. Using GEM, an analyst can estimate the risk associated with operational events (for example, to calculate a conditional core damage probability) very efficiently and expeditiously. This report provides an overview of the functions available in SAPHIRE and presents general instructions for using the software. Section 1 presents SAPHIRE’s historical evolution and summarizes its capabilities. Section 2 presents instructions for installing and using the code. Section 3 explains the database structure used in SAPHIRE and discusses database concepts. Section 4 explains how PRA data (event frequencies, human error probabilities, etc.) can be generated and manipulated using “change sets.” Section 5 deals with fault tree operations, including constructing, editing, solving, and displaying results. Section 6 presents operations associated with event trees, including rule application for event tree linking, partitioning, and editing sequences. Section 7 presents how accident sequences are generated, solved, quantified, and analyzed. Section 8 discusses the functions available for performing end state analysis. Section 9 explains how to modify data stored in a SAPHIRE database. Section 10 illustrates how to generate and customize reports. Section 11 covers SAPHIRE utility options to perform routine functions such as defining constant values, recovering databases, and loading data from external sources. Section 12 provides an overview of GEM’s features and capabilities. Finally, Section 13 summarizes SAPHIRE’s quality assurance process.

C. L. Smith

2008-08-01T23:59:59.000Z

46

Experiences  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial Thin Film XRDEvanExecutiveSRD-13Experiences with

47

Hands-On Exercises  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

files you copied to SCRATCH above. hopper% cd SCRATCHtutorialsJGI-Intro hopper% cd hello hopper% make You will see the commands used to compile and link the code. To see the...

48

Hands-On Exercises  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuided Self-Assembly of GoldHAWCHIGSSiteHamada winsAESASDNERSC

49

Hands-On Exercises  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuided Self-Assembly of GoldHAWCHIGSSiteHamada

50

Hands-On Exercises  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuided Self-Assembly of GoldHAWCHIGSSiteHamadaNERSC »

51

Hands-On Exercises  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuided Self-Assembly of GoldHAWCHIGSSiteHamadaNERSC »NERSC »

52

Determination of optimal gains for constrained controllers  

SciTech Connect (OSTI)

In this report, we consider the determination of optimal gains, with respect to a certain performance index, for state feedback controllers where some elements in the gain matrix are constrained to be zero. Two iterative schemes for systematically finding the constrained gain matrix are presented. An example is included to demonstrate the procedures.

Kwan, C.M.; Mestha, L.K.

1993-08-01T23:59:59.000Z

53

Army Veteran Gains Experience at EM Site | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3--Logistical Challenges toReport | Department ofDepartment ofof EnergyArmy

54

Investigation of gain kinetics in a CO gas dynamic laser  

SciTech Connect (OSTI)

A detailed experimental investigation of small-signal gain in a CO gasdynamic laser, produced in a shock tunnel is presented. Gains of the P/sub 7/(3) transition were measured at a distance 44 cm downstream from the nozzle throat for various CO--Ar and CO--N/sub 2/--Ar mixtures at stagnation temperatures of 1800/sup 0/--3800 /sup 0/K and stagnation pressures of 18--40 atm. Optimum gas temperatures and compositions were observed. Laser oscillations were observed simultaneously in two cavities located at 44 and 56 cm downstream from the nozzle throat. The experimental data on gain have been compared with a numerical model. A quantitatively good argeement between calculations and experiments was found which permits the utilization of the mathematical model for a better understanding of the processes involved in the laser operation. Small signal gains and multi-line laser power outputs were calculated along the nozzle for various initial conditions. Calculations indicate that maximum gain and maximum power occur for P/sub 3/(4)-P/sub 5/(4) lines at a stagnation temperature of about 3000 /sup 0/K and a gas composition of CO:Ar = 20:80.

Stricker, J.; Tilleman, M.

1982-06-01T23:59:59.000Z

55

Optimization Online - Lot sizing with inventory gains  

E-Print Network [OSTI]

Apr 27, 2006 ... Abstract: This paper introduces the single item lot sizing problem with inventory gains. This problem is a generalization of the classical single ...

Hamish Waterer

2006-04-27T23:59:59.000Z

56

The camp will expose students to local biodiversity and provide abundant immersive hands-on experiences with the plant and animal life found within the  

E-Print Network [OSTI]

The camp will expose students to local biodiversity and provide abundant immersive hands? If yes, fill out the application to be considered for a spot in a week-long camp studying biodiversity! The 2014 Richard P. Garmany Biodiversity Camp will be held July 7th -11th at the Environmental Sciences

Alpay, S. Pamir

57

Experimental Determination of the Gain Distribution of an Avalanche Photodiode at Low Gains  

E-Print Network [OSTI]

A measurement system for determining the gain distributions of avalanche photodiodes (APDs) in a low gain range is presented. The system is based on an ultralow-noise charge--sensitive amplifier and detects the output carriers from an APD. The noise of the charge--sensitive amplifier is as low as 4.2 electrons at a sampling rate of 200 Hz. The gain distribution of a commercial Si APD with low average gains are presented, demonstrating the McIntyre theory in the low gain range.

Kenji Tsujino; Makoto Akiba; Masahide Sasaki

2008-12-04T23:59:59.000Z

58

Gaines County Solid Waste Management Act (Texas)  

Broader source: Energy.gov [DOE]

This Act establishes the Gaines County Solid Waste Management District, a governmental body to develop and carry out a regional water quality protection program through solid waste management and...

59

Method and system for edge cladding of laser gain media  

DOE Patents [OSTI]

A gain medium operable to amplify light at a gain wavelength and having reduced transverse ASE includes an input surface and an output surface opposing the input surface. The gain medium also includes a central region including gain material and extending between the input surface and the output surface along a longitudinal optical axis of the gain medium. The gain medium further includes an edge cladding region surrounding the central region and extending between the input surface and the output surface along the longitudinal optical axis of the gain medium. The edge cladding region includes the gain material and a dopant operable to absorb light at the gain wavelength.

Bayramian, Andrew James; Caird, John Allyn; Schaffers, Kathleen Irene

2014-03-25T23:59:59.000Z

60

Energy Gaining Windows for Residential Buildings Jesper Kragh, Assistant Professor,  

E-Print Network [OSTI]

season. It is assumed that in northern cold climates all of the solar gain during the heating season can profiles, solar gain, net energy gain, low energy houses SUMMARY: This paper presents some of the research buildings. The net energy gain of windows is the solar gain minus the heat loss integrated over the heating

Note: This page contains sample records for the topic "gain hands-on experience" 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

Capital gains tax treatment and the cattleman  

E-Print Network [OSTI]

Major Subject: Agricultural Economics CAPITAL GAINS TAX TREATMENT AND THE CATTLEMAN A Thesis by M I LTDN EDWARD R I STE R Approved as to style and content by: airman o ommi e Dr. Ronald R. Kay Head o D artment Dr. John opkin Mem er Dr. Donald... R. Levi e er Dr. Howard Hesby December 1976 ABSTRACT Capital Gains Tax Treatment and the Catt leman. (December 1976) Milton Edward Rister, B. S. , Texas ASM University Chairman of Advisory Committee: Or. Ronald D. Kay The federal tax...

Rister, M. Edward

1976-01-01T23:59:59.000Z

62

Gainful Employment Programs Guidance January 2012  

E-Print Network [OSTI]

with the following information on our GE programs: · Name and Classification of Instructional Program (CIP) code1 Gainful Employment Programs Guidance January 2012 Eric R. Pedersen, Associate Vice Chancellor Background On October 29, 2010, and June 13, 2011, the Department of Education (ED) published final

Pantaleone, Jim

63

U-030: Apache Tomcat Lets Untrusted Web Applications Gain Elevated...  

Broader source: Energy.gov (indexed) [DOE]

0: Apache Tomcat Lets Untrusted Web Applications Gain Elevated Privileges U-030: Apache Tomcat Lets Untrusted Web Applications Gain Elevated Privileges November 9, 2011 - 8:30am...

64

DOE EM Project Experience & Lessons Learned for In Situ Decommissionin...  

Office of Environmental Management (EM)

"DOE EM Project Experience & Lessons Learned for In Situ Decommissioning" report is to capture the considerable technical experience gained to date for implementation of In Situ...

65

Roof Coating Procedures and Their Productivity Gains  

E-Print Network [OSTI]

benefit of the installation of different roof coating technologies and comparable application procedures of these technologies are ambiguous. The focal point of this research is to determine the effective correlation between various commercially... available roof coatings, and productivity gains associated with these energy saving strategies. This type of situation is evidenced in the justification of energy rebates distributed by Florida Power & Light in exchange for the application of Energy Star...

Bonaby, J.; Schaub, D.

2006-01-01T23:59:59.000Z

66

Gaines, Michigan: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, search Equivalent URIFrontier,JumpGahanna, Ohio: EnergyGaines, Michigan:

67

GainSpan Corporation | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (TheEtelligenceGainSpan Corporation Jump to: navigation, search

68

Survey of Gain-Scheduling Analysis & Design WE.Leithead  

E-Print Network [OSTI]

ranging from aerospace to process control. Despite the wide application of gain-scheduling controllers of gain-scheduling controllers and a diverse academic literature relating to gain- scheduling extendingSurvey of Gain-Scheduling Analysis & Design D.J.Leith WE.Leithead Department of Electronic

Duffy, Ken

69

Effects of Gain Changes on RPM Performance  

SciTech Connect (OSTI)

The mission of the U.S. Department of Energy/National Nuclear Security Administration's (DOE/NNSA's) Office of the Second Line of Defense (SLD) is to strengthen the capability of foreign governments to deter, detect, and interdict the illicit trafficking of special nuclear and other radioactive materials across international borders and through the global maritime shipping system. The goal of this mission is to reduce the probability of these materials being fashioned into a weapon of mass destruction or radiological dispersal device that could be used against the United States or its international partners. This goal is achieved primarily through the installation and operation of radiation detection equipment at border crossings, airports, seaports, and other strategic locations around the world. In order to effectively detect the movement of radioactive material, the response of these radiation detectors to various materials in various configurations must be well characterized. Oak Ridge National Laboratory (ORNL) investigated two aspects of Radiation Portal Monitor (RPM) settings, based on a preliminary investigation done by the Los Alamos National Laboratory (LANL): source-to-detector distance effect on amplifier gain and optimized discriminator settings. This report discusses this investigation. A number of conclusions can be drawn from the ORNL testing. First, for increased distance between the source and the detector, thus illuminating the entire detector rather than just the center of the detector (as is done during detector alignments), an increase in gain may provide a 5-15% increase in sensitivity (Fig. 4). However, increasing the gain without adjusting the discriminator settings is not recommended as this makes the monitor more sensitive to electronic noise and temperature-induced fluctuations. Furthermore, if the discriminators are adjusted in relation to the increase in gain, thus appropriately discriminating against electronic noise, the sensitivity gains are less than 5% (Fig. 6). ORNL does not consider this slight increase in sensitivity to be a worthwhile pursuit. Second, increasing the ULD will increase sensitivity a few percent (Fig. 7); however, it is not clear that the slight increase in sensitivity is worth the effort required to make the change (e.g., reliability, cost, etc.). Additionally, while the monitor would be more sensitive to HEU, it would also be more sensitive to NORM. Third, the sensitivity of the system remains approximately the same whether it is calibrated to a small source on contact or a large source far away (Fig. 6). This affirms that no changes to the existing calibration procedure are necessary.

Lousteau, Angela L [ORNL; York, Robbie Lynn [ORNL; Livesay, Jake [ORNL

2012-03-01T23:59:59.000Z

70

Gaining Energy Perspective | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdf Flash2006-53.pdf0.pdfCost SavingsEnergy GETEMGolden FieldGaining Energy

71

Gaining creative control over semiconductor nanowires  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky Learning Fun with Big SkyDIII-DRMR LSU/CAMD|Gaining creative

72

Women @ Energy: Linda Gaines | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from theDepartment of Dept.| WEATHERIZATION5Iski WomenKerstinGaines Women @ Energy:

73

Progress on achieving the ICF conditions needed for high gain  

SciTech Connect (OSTI)

Progress during the past two years has moved us much closer to demonstrating the scientific and technological requirements for high gain ICF in the laboratory. This progress has been made possible by operating at the third harmonic of 1..mu..m light which dramatically reduces concern about hot electrons and by advances in diagnostics such as 100 ps x-ray framing cameras which greatly increase the data available from each experiment. Making use of many of these new capabilities, major improvements in confinement conditions have been achieved for ICF implosions. In particular, in an optimized hohlraum on Nova, radiation driven implosions with convergence ratio in excess of 30 (volume compression /approximately/3 /times/ 10/sup 4/) have performed essentially as predicted by spherical implosion calculations. This paper presents these results as well as examples of advances in several other areas and discusses the implications for the future of ICF with lasers and heavy ion beam drivers. 8 refs., 10 figs.

Lindl, J.D.

1988-12-23T23:59:59.000Z

74

Why help in this way? Insights gained from an approachable contact  

E-Print Network [OSTI]

Why help in this way? Insights gained from an approachable contact within an organisation can make to a student query when you feel able to help by sharing your experiences and offering advice. How do I become for Rolls-Royce in helping us to secure the best graduate talent but having helped 3 Lancaster students

Diggle, Peter J.

75

Study in Indonesia... and gain credit towards your degree! JournalismProfessionalPracticum  

E-Print Network [OSTI]

Study in Indonesia... and gain credit towards your degree! JournalismProfessionalPracticum inIndonesia will deep- en their understanding of Indonesia whilst developing their journalism skills within will be a high-calibre journalist who has experience with different elements of the media in both Indonesia

76

Gain Scheduled Control Using the Dual Youla Parameterization  

E-Print Network [OSTI]

Stability is a critical issue in gain-scheduled control problems in that the closed loop system may not be stable during the transitions between operating conditions despite guarantees that the gain-scheduled controller stabilizes the plant model...

Chang, Young Joon

2011-08-08T23:59:59.000Z

77

Effects of internal gain assumptions in building energy calculations  

SciTech Connect (OSTI)

The utilization of direct solar gains in buildings can be affected by operating profiles, such as schedules for internal gains, thermostat controls, and ventilation rates. Building energy analysis methods use various assumptions about these profiles. The effects of typical internal gain assumptions in energy calculations are described. Heating and cooling loads from simulations using the DOE 2.1 computer code are compared for various internal-gain inputs: typical hourly profiles, constant average profiles, and zero gain profiles. Prototype single-family-detached and multi-family-attached residential units are studied with various levels of insulation and infiltration. Small detached commercial buildings and attached zones in large commercial buildings are studied with various levels of internal gains. The results of this study indicate that calculations of annual heating and cooling loads are sensitive to internal gains, but in most cases are relatively insensitive to hourly variations in internal gains.

Christensen, C.; Perkins, R.

1981-01-01T23:59:59.000Z

78

TRADE COSTS AND THE GAINS FROM TRADE IN CROP AGRICULTURE  

E-Print Network [OSTI]

costs, trade liberalization. JEL codes: F18, Q17, Q54. Although the theoretical case for the gains from

Tullos, Desiree

79

Design of Gain-Scheduled Strictly Positive Real Controllers  

E-Print Network [OSTI]

Design of Gain-Scheduled Strictly Positive Real Controllers Using Numerical Optimization the linear SPR controllers, which compose the gain-scheduled controller. Second, we formulate the optimization problem associ- ated with the gain-scheduled controller itself. Restricting our in- vestigation

Damaren, Christopher J.

80

Electric top drives gain wide industry acceptance  

SciTech Connect (OSTI)

Since its introduction, the top drive drilling system has gained acceptance as a productive and safe method for drilling oil and gas wells. Originally, the system was used mostly for offshore and higher cost land drilling, and it had to be installed as a permanent installation because of its enormous weight and size. Essentially, a top drive replaces the kelly and rotary table as the means of rotating drillpipe on oil, gas and geothermal rigs and is considered to be 15% to 40% more efficient than a kelly drive. Top drive systems allow the operator to drill and maintain directional orientation for triple stands and provide tripping efficiency because of the ability to ream and circulate with triple stands, to reduce the risk of stuck pipe or lost wells, and to improve well control and pipe handling safety. The paper describes electric top drives with DC motors, top drives with AC motors, top drives with permanent magnet motors, and top drives with permanent magnet brushless synchronous motors.

Riahi, M.L.

1998-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

Gain dynamics of quantum dot devices for dual-state operation  

SciTech Connect (OSTI)

Ground state gain dynamics of In(Ga)As-quantum dot excited state lasers are investigated via single-color ultrafast pump-probe spectroscopy below and above lasing threshold. Two-color pump-probe experiments are used to localize lasing and non-lasing quantum dots within the inhomogeneously broadened ground state. Single-color results yield similar gain recovery rates of the ground state for lasing and non-lasing quantum dots decreasing from 6 ps to 2 ps with increasing injection current. We find that ground state gain dynamics are influenced solely by the injection current and unaffected by laser operation of the excited state. This independence is promising for dual-state operation schemes in quantum dot based optoelectronic devices.

Kaptan, Y., E-mail: yuecel.kaptan@physik.tu-berlin.de; Herzog, B.; Kolarczik, M.; Owschimikow, N.; Woggon, U. [Institut für Optik und Atomare Physik, Technische Universität Berlin, Berlin (Germany); Schmeckebier, H.; Arsenijevi?, D.; Bimberg, D. [Institut für Festkörperphysik, Technische Universität Berlin, Berlin (Germany); Mikhelashvili, V.; Eisenstein, G. [Technion Institute of Technology, Faculty of Electrical Engineering, Haifa (Israel)

2014-06-30T23:59:59.000Z

82

Gain saturation studies in LG-750 and LG-770 amplifier glass  

SciTech Connect (OSTI)

Experiments were performed on the 100-J class Optical Sciences Laser (OSL) at LLNL to characterize the saturation fluence and small-signal gain of a solid-state Nd:glass amplifier utilizing LG-750 and LG-770, an amplifier glass developed for the National Ignition Facility (NIF). These high quality measurements of gain saturation at NIF level fluences, i.e., 10-15 J/cm{sup 2}, provide essential parameters for the amplifier performance codes used to design NIF and future high power laser systems. The small-signal gain, saturation fluence and square-pulse distortion were measured as a function of input fluence and pulse length in platinum-free LG-750 and LG-770. The input fluence, output fluence, small-signal gain and passive losses were measured to allow calculation of the saturation fluence. Least square fits of the output vs. input fluence data using a Frantz-Nodvik model was used to obtain an average saturation fluence for each data set. Overall, gain saturation in LG-750 and LG-770 is comparable at long pulse lengths. For shorter pulse length, < 5 ns, LG-770 exhibits a stronger pulse length dependence than LG-750, possibly due to a longer terminal level lifetime. LG-770 also has a higher cross- section, which is reflected by its slightly higher extraction efficiency. 52 refs., 11 figs., 2 tabs.

Pennington, D.M.; Milam, D.; Eimerl, D.

1997-03-10T23:59:59.000Z

83

Gain properties of dye-doped polymer thin films  

E-Print Network [OSTI]

The demonstration of an electrically pumped organic laser remains a major issue of organic optoelectronics for several decades. Nowadays, hybrid pumping seems a promising compromise where the organic material is optically pumped by an electrically pumped inorganic device on chip. This technical solution requires therefore an optimization of the organic gain medium under optical pumping. Here, we report a detailed study of gain features of dye-doped polymer thin films, in particular we introduce the gain efficiency $K$, in order to facilitate comparison between material and experimental conditions. First, we measure the bulk gain by the means of a pump-probe setup, and then present in details several factors which modify the actual gain of the layer, namely the confinement factor, the pump polarization, the molecular anisotropy, and the re-absorption. The usual model to evaluate the gain leads to an overestimation by more than one order of magnitude, which stresses the importance to design the devices accordin...

Gozhyk, I; Rabbani, H; Djellali, N; Forget, S; Chenais, S; Ulysse, C; Brosseau, A; Gauvin, S; Zyss, J; Lebental, M

2014-01-01T23:59:59.000Z

84

Use of a photonic crystal for optical amplifier gain control  

DOE Patents [OSTI]

An optical amplifier having a uniform gain profile uses a photonic crystal to tune the density-of-states of a gain medium so as to modify the light emission rate between atomic states. The density-of-states of the gain medium is tuned by selecting the size, shape, dielectric constant, and spacing of a plurality of microcavity defects in the photonic crystal. The optical amplifier is particularly useful for the regeneration of DWDM signals in long optical fibers.

Lin, Shawn-Yu (Albuquerque, NM); Fleming, James G. (Albuquerque, NM); El-Kady, Ihab (Albuquerque, NM)

2006-07-18T23:59:59.000Z

85

ORISE: CDC Travelers' Health Mobile App, Designed by ORISE, Gains...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Can I Eat This? Mobile App Helps International Travelers Make Safe Dining Choices CDC Travelers' Health app, designed by ORISE, gains attention on multiple websites How ORISE is...

86

Insights Gained from Testing Alternate Cell Designs  

SciTech Connect (OSTI)

The Idaho National Laboratory (INL) has been researching the application of solid-oxide electrolysis cell for large-scale hydrogen production from steam over a temperature range of 800 to 900şC. The INL has been testing various solid oxide cell designs to characterize their electrolytic performance operating in the electrolysis mode for hydrogen production. Some results presented in this report were obtained from cells, initially developed by the Forschungszentrum Jülich and now manufactured by the French ceramics firm St. Gobain. These cells have an active area of 16 cm2 per cell. They were initially developed as fuel cells, but are being tested as electrolytic cells in the INL test stands. The electrolysis cells are electrode-supported, with ~10 µm thick yttria-stabilized zirconia (YSZ) electrolytes, ~1400 µm thick nickel-YSZ steam-hydrogen electrodes, and manganite (LSM) air-oxygen electrodes. The experiments were performed over a range of steam inlet mole fractions (0.1 to 0.6), gas flow rates, and current densities (0 to 0.6 A/cm2). Steam consumption rates associated with electrolysis were measured directly using inlet and outlet dewpoint instrumentation. On a molar basis, the steam consumption rate is equal to the hydrogen production rate. Cell performance was evaluated by performing DC potential sweeps at 800, 850, and 900°C. The voltage-current characteristics are presented, along with values of area-specific resistance as a function of current density. Long-term cell performance is also assessed to evaluate cell degradation. Details of the custom single-cell test apparatus developed for these experiments are also presented. NASA, in conjunction with the University of Toledo, has developed another fuel cell concept with the goals of reduced weight and high power density. The NASA cell is structurally symmetrical, with both electrodes supporting the thin electrolyte and containing micro-channels for gas diffusion. This configuration is called a bi-electrode supported cell or BSC. The electrodes are made by freeze-casting, a modified tape casting technique which creates the many micro-channels in the YSZ electrode green tape. This report presents results of the INL’s testing of this new solid oxide cell design as an electrolyzer. Gas composition, operating voltage, and other parameters were varied during testing. Results to date show the NASA cell to be a promising design for both high power-to-weight fuel cell and electrolyzer applications.

J. E. O'Brien; C. M. Stoots; J. S. Herring; G. K. Housley; M. S. Sohal; D. G. Milobar; Thomas Cable

2009-09-01T23:59:59.000Z

87

Undergraduate reactor control experiment  

SciTech Connect (OSTI)

A sequence of reactor and related experiments has been a central element of a senior-level laboratory course at Pennsylvania State University (Penn State) for more than 20 yr. A new experiment has been developed where the students program and operate a computer controller that manipulates the speed of a secondary control rod to regulate TRIGA reactor power. Elementary feedback control theory is introduced to explain the experiment, which emphasizes the nonlinear aspect of reactor control where power level changes are equivalent to a change in control loop gain. Digital control of nuclear reactors has become more visible at Penn State with the replacement of the original analog-based TRIGA reactor control console with a modern computer-based digital control console. Several TRIGA reactor dynamics experiments, which comprise half of the three-credit laboratory course, lead to the control experiment finale: (a) digital simulation, (b) control rod calibration, (c) reactor pulsing, (d) reactivity oscillator, and (e) reactor noise.

Edwards, R.M.; Power, M.A.; Bryan, M. (Pennsylvania State Univ., University Park (United States))

1992-01-01T23:59:59.000Z

88

Review of health and productivity gains from better IEQ  

SciTech Connect (OSTI)

The available scientific data suggest that existing technologies and procedures can improve indoor environmental quality (IEQ) in a manner that significantly increases productivity and health. While there is considerable uncertainty in the estimates of the magnitudes of productivity gains that may be obtained, the projected gains are very large. For the U.S., the estimated potential annual savings and productivity gains are $6 to $14 billion from reduced respiratory disease, $2 to $4 billion from reduced allergies and asthma, $10 to $30 billion from reduced sick building syndrome symptoms, and $20 to $160 billion from direct improvements in worker performance that are unrelated to health. Productivity gains that are quantified and demonstrated could serve as a strong stimulus for energy efficiency measures that simultaneously improve the indoor environment.

Fisk, William J.

2000-08-01T23:59:59.000Z

89

Gain scheduling for geometrically nonlinear flexible space structures  

E-Print Network [OSTI]

A gain-scheduling approach for the control of geometrically nonlinear structures is developed. The objective is to improve performance over current linear design techniques that are applied to the same control problem. The ...

Yung, Jeremy Hoyt, 1971-

2002-01-01T23:59:59.000Z

90

Optical Filter Design: Gain Analysis and Tolerance Analysis  

E-Print Network [OSTI]

OPTICAL FILTER DESIGN: GAIN ANALYSIS AND TOLERANCE ANALYSIS A Thesis by VIVEK VANDRASI Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER OF SCIENCE August... 2010 Major Subject: Electrical Engineering OPTICAL FILTER DESIGN: GAIN ANALYSIS AND TOLERANCE ANALYSIS A Thesis by VIVEK VANDRASI Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements...

Vandrasi, Vivek

2011-10-21T23:59:59.000Z

91

IEEEJOURNAL OF QUANTUMELECTRONICS, VOL. QE-21,NO. 7, JULY 1985 831 High-Gain Free Electron Lasers Using Induction  

E-Print Network [OSTI]

of producing intense cwrents (102-104A) at moderately high energy (1-50 MeV). Experiments using a 500 A, 3.3 Me of Energy under Contracts W- Research Projects Agency under ARPA Order 4856, Program Code 3B10. T. J. Future experi- ments include a high-gain, high-efficiency FEL operating at 10.6 pm using a 50 MeV beam. I

Wurtele, Jonathan

92

Information Gain Based Dimensionality Selection for Classifying Text Documents  

SciTech Connect (OSTI)

Selecting the optimal dimensions for various knowledge extraction applications is an essential component of data mining. Dimensionality selection techniques are utilized in classification applications to increase the classification accuracy and reduce the computational complexity. In text classification, where the dimensionality of the dataset is extremely high, dimensionality selection is even more important. This paper presents a novel, genetic algorithm based methodology, for dimensionality selection in text mining applications that utilizes information gain. The presented methodology uses information gain of each dimension to change the mutation probability of chromosomes dynamically. Since the information gain is calculated a priori, the computational complexity is not affected. The presented method was tested on a specific text classification problem and compared with conventional genetic algorithm based dimensionality selection. The results show an improvement of 3% in the true positives and 1.6% in the true negatives over conventional dimensionality selection methods.

Dumidu Wijayasekara; Milos Manic; Miles McQueen

2013-06-01T23:59:59.000Z

93

The Chena Hot Springs 400kw Geothermal Power Plant: Experience Gained  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen,Ltd Jump Jump to:Information 'Grand Paris' Project:BeamThe

94

High-frequency absorption and gain in superlattices: Semiquasistatic approach  

E-Print Network [OSTI]

We consider a generation and an amplification of THz radiation in semiconductor superlattices under the action of microwave pump field. Electrons belonging to a single miniband of the superlattice interact quasistatically with the pump field and dynamically with a signal THz field. Within this semiquasistic approach we derive elegant difference formulas describing absorption (gain) of the weak THz signal. We present an instructive geometric interpretation of the absorption formulas which allows a search of optimum conditions for the gain employing only a simple qualitative analysis. Our theoretical findings contribute to the development of sources and detectors of THz radiation that are using nonlinear electric properties of semiconductor superlattices.

A. V. Shorokhov; K. N. Alekseev

2006-02-08T23:59:59.000Z

95

E-Print Network 3.0 - active life gained Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ues. Inverting Gain As with voltage-feedback op amps, the ratio of the feedback... resistor to the gain-setting resistor determines the voltage gain in current-feedback op amp...

96

Reliability Gain of Network Coding in Lossy Wireless Networks  

E-Print Network [OSTI]

Reliability Gain of Network Coding in Lossy Wireless Networks Majid Ghaderi Department of Computer that network coding improves network reliability by reducing the number of packet retransmissions in lossy networks. However, the extent of the reliability benefit of network coding is not known. This paper

Massachusetts at Amherst, University of

97

Design of a variable gain amplifier for an ultrawideband receiver  

E-Print Network [OSTI]

and the analog VGA is formed by a digital-to-analog converter and an exponential voltage generator. The gain of the VGA varies dB-linearly from 0 to 52 dB with respect to the control voltage. The VGA is operated in open loop with a bandwidth greater than 500 MHz...

Krishnanji, Sivasankari

2005-11-01T23:59:59.000Z

98

Generalized solar load ratio correlation for direct gain buildings  

SciTech Connect (OSTI)

A generalized solar load ratio correlation has been developed for direct gain buildings by generating relationships between the correlation parameters and two fundamental design parameters. The first design parameter is the steady state conductance of the solar aperture, U/sub c/. The second is the effective heat capacity of the solar zone, EHC.

Wray, W.O.; Best, E.D.

1986-01-01T23:59:59.000Z

99

1 INTRODUCTION Alternative energy sources have increasingly gained  

E-Print Network [OSTI]

1 INTRODUCTION Alternative energy sources have increasingly gained the interest for governments it is required, is a major concern for alternative energy systems. Profits and environmental benefits, research institutes, academia, and industry in order to advance the penetration of sustainable energy

Sandborn, Peter

100

Gain effect waveguide optical amplifiers for Si microphotonics  

E-Print Network [OSTI]

(cont.) Er-based gain. We reported the first infrared photoluminescence PL study of Er?O? and found a 7 ms lifetime at 4 K, attributed to a metastable FCC or HCP phase. We showed the thermodynamically stable BCC crystal ...

Saini, Sajan, 1973-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

Extractive Institutions and Gains From Trade: Evidence from Colonial Africa  

E-Print Network [OSTI]

. First, because of the low population densities of French Africa and the high cost of labor rela- tive (2013) tests this hypothesis in the African context showing that lower population density is correlatedExtractive Institutions and Gains From Trade: Evidence from Colonial Africa Federico Tadei A common

Faraon, Andrei

102

PiPe dreams? Jobs Gained, Jobs Lost  

E-Print Network [OSTI]

Petroleum Institute that, if constructed, TransCanada's proposed Keystone XL (KXL) pipeline will generatePiPe dreams? Jobs Gained, Jobs Lost by the ConstruCtion of Keystone XL a rePort by Corne, and Induced) Jobs from Keystone XL 26 KXL Will Have Minor Impact on Unemployment Levels 27 Four Ways Keystone

Danforth, Bryan Nicholas

103

U-178: VMware vMA Library Loading Error Lets Local Users Gain...  

Broader source: Energy.gov (indexed) [DOE]

Buffer Overflow and Null Pointer Dereference Lets Local Users Gain Elevated Privileges U-094: EMC Documentum Content Server Lets Local Administrative Users Gain Elevated Privileges...

104

E-Print Network 3.0 - adaptive gain integrating Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is based on a hybrid combination of gain scheduling, B- spline... combination of gain scheduling, B-spline approximation, variable structure control and integral control... the...

105

Radio interferometric gain calibration as a complex optimization problem  

E-Print Network [OSTI]

Recent developments in optimization theory have extended some traditional algorithms for least-squares optimization of real-valued functions (Gauss-Newton, Levenberg-Marquardt, etc.) into the domain of complex functions of a complex variable. This employs a formalism called the Wirtinger derivative, and derives a full-complex Jacobian counterpart to the conventional real Jacobian. We apply these developments to the problem of radio interferometric gain calibration, and show how the general complex Jacobian formalism, when combined with conventional optimization approaches, yields a whole new family of calibration algorithms, including those for the polarized and direction-dependent gain regime. We further extend the Wirtinger calculus to an operator-based matrix calculus for describing the polarized calibration regime. Using approximate matrix inversion results in computationally efficient implementations; we show that some recently proposed calibration algorithms such as StefCal and peeling can be understood...

Smirnov, Oleg

2015-01-01T23:59:59.000Z

106

Work and energy gain of heat-pumped quantized amplifiers  

E-Print Network [OSTI]

We investigate heat-pumped single-mode amplifiers of quantized fields in high-Q cavities based on non-inverted two-level systems. Their power generation is shown to crucially depend on the capacity of the quantum state of the field to accumulate useful work. By contrast, the energy gain of the field is shown to be insensitive to its quantum state. Analogies and differences with masers are explored.

David Gelbwaser-Klimovsky; Robert Alicki; Gershon Kurizki

2013-10-09T23:59:59.000Z

107

Gaining Top Management Support for Energy Conservation Programs  

E-Print Network [OSTI]

GAINING TOP MANAGEMENT SUPPORT FOR ENERGY CONSERVATION PROGRAMS W. F. Kenney Exxon Chemical Company Florham Park, New Jersey ABSTRACT Sometimes seemingly attractive energy con 1 have attempted to generalize these considerations servation... in your efforts. References [1] W. F. Kenney, IECTC 1983 "Some Observations I on Energy Efficiency and Capital Costs." 17 ESL-IE-84-04-04 Proceedings from the Sixth Annual Industrial Energy Technology Conference Volume I, Houston, TX, April 15...

Kenney, W. F.

1984-01-01T23:59:59.000Z

108

Gain-assisted superluminal light propagation via incoherent pump field  

E-Print Network [OSTI]

We investigate the dispersion and the absorption properties of a weak probe field in a three-level Lambda-type atomic system. We use just an incoherent field for controlling the group velocity of light. It is shown that the slope of dispersion changes from positive to negative just with changing the intensity of the indirect incoherent pumping field. Gain-assisted superluminal light propagation appears in this system. No laser field is used in the pumping processes.

M. Mahmoudi; S. Worya Rabiei; L. Safari; M. Sahrai

2008-08-03T23:59:59.000Z

109

A very high frequency CMOS Variable Gain Amplifier  

E-Print Network [OSTI]

of the VGA output signal . . . . . . . . . 80 Bandwidth with different frequency compensation circuits bias current at 22dB gain setting. . . 84 XIV VGA comparison . . . 88 LIST OF FIGURE FIGURE I 2", 3 and 4'" order sigma-delta modulator SNR vs. input... level . . . . Page 2 Block diagram of a direct conversion receiver. 3 Single transistor transconductor 4 Differential pair 5 Source degeneration amplifier. 6 Four-quadrant multiplier basic architectures . . . . . . . . 10 7 Multiplier as a...

Tan, Siang Tong

2012-06-07T23:59:59.000Z

110

High gain preamplifier based on optical parametric amplification  

DOE Patents [OSTI]

A high-gain preamplifier based on optical parametric amplification. A first nonlinear crystal is operatively connected to a second nonlinear crystal. A first beam relay telescope is operatively connected to a second beam relay telescope, to the first nonlinear crystal, and to the second nonlinear crystal. A first harmonic beamsplitter is operatively connected to a second harmonic beamsplitter, to the first nonlinear crystal, to the second nonlinear crystal, to the first beam relay telescope, and to the second beam relay telescope.

Jovanovic, Igor; Bonner, Randal A.

2004-08-10T23:59:59.000Z

111

Incremental cooling load determination for passive direct gain heating systems  

SciTech Connect (OSTI)

This paper examines the applicability of the National Association of Home Builders (NAHB) full load compressor hour method for predicting the cooling load increase in a residence, attributable to direct gain passive heating systems. The NAHB method predictions are compared with the results of 200 hour-by-hour simulations using BLAST and the two methods show reasonable agreement. The degree of agreement and the limitations of the NAHB method are discussed.

Sullivan, P.W.; Mahone, D.; Fuller, W.; Gruber, J.; Kammerud, R.; Place, W.; Andersson, B.

1981-05-01T23:59:59.000Z

112

Spatially Similar Practice Immediately Following Motor Sequence Learning Eliminates Offline Gains  

E-Print Network [OSTI]

early during motor sequence learning but highlight the sensitivity of offline gains to task practice order....

Handa, Atul

2012-11-30T23:59:59.000Z

113

Selected Agriculture Students' Perceptions of International Educational Experience  

E-Print Network [OSTI]

, finding affordable and adequate housing -- and language barriers. Students who believed that joining in study abroad programs would improve their competitiveness in the global marketplace were more willing to gain international educational experiences than...

Chang, Chia-Wei

2012-10-19T23:59:59.000Z

114

IRRADIATION EXPERIMENTS &  

E-Print Network [OSTI]

IRRADIATION EXPERIMENTS & FACILITIES AT BNL: BLIP & NSLS II Peter Wanderer Superconducting Magnet). Current user: LBNE ­ materials for Project X. · Long Baseline Neutrino Experiment ­ Abandoned gold mine

McDonald, Kirk

115

Electrical and Optical Gain Lever Effects in InGaAs Double Quantum Well Diode Lasers  

SciTech Connect (OSTI)

In multisection laser diodes, the amplitude or frequency modulation (AM or FM) efficiency can be improved using the gain lever effect. To study gain lever, InGaAs double quantum well (DQW) edge emitting lasers have been fabricated with integrated passive waveguides and dual sections providing a range of split ratios from 1:1 to 9:1. Both the electrical and the optical gain lever have been examined. An electrical gain lever with greater than 7 dB enhancement of AM efficiency was achieved within the range of appropriate DC biasing currents, but this gain dropped rapidly outside this range. We observed a 4 dB gain in the optical AM efficiency under non-ideal biasing conditions. This value agreed with the measured gain for the electrical AM efficiency under similar conditions. We also examined the gain lever effect under large signal modulation for digital logic switching applications. To get a useful gain lever for optical gain quenched logic, a long control section is needed to preserve the gain lever strength and a long interaction length between the input optical signal and the lasing field of the diode must be provided. The gain lever parameter space has been fully characterized and validated against numerical simulations of a semi-3D hybrid beam propagation method (BPM) model for the coupled electron-photon rate equation. We find that the optical gain lever can be treated using the electrical injection model, once the absorption in the sample is known.

Pocha, M D; Goddard, L L; Bond, T C; Nikolic, R J; Vernon, S P; Kallman, J S; Behymer, E M

2007-01-03T23:59:59.000Z

116

Relative Gain Monitoring of the GlueX Calorimeters  

SciTech Connect (OSTI)

The relative gain of the photodetectors for the GlueX Barrel and Forward calorimeters will be monitored using modular LED driver systems. The BCAL system consists of a global controller that feeds power, bias voltage and trigger signals to 96 local controllers situated at the ends of the 48 BCAL modules, which drive 40 LEDs associated with the 40 light guides at the end of each module. The FCAL system consists also of a global controller, a local controller for each acrylic quadrant covering the face of the FCAL, and ten 4-LED pulser boards per local controller connected in a star configuration along the edges of the acrylic panes. The respective systems are currently being installed on the detectors and their tested performance is presented herein.

Anassontzis, Efstratios G. [JLAB/National and Kapodestrian University of Athens (Greece); Ioannou, P. [National and Kapodestrian University of Athens (Greece); Kourkoumelis, C. [National and Kapodestrian University of Athens (Greece); Vasileiadis, G. [National and Kapodestrian University of Athens (Greece); Voulgaris, G. [National and Kapodestrian University of Athens (Greece); Kappos, E. [Symmetron Electronic Applications, Gerakas (Greece); Beattie, T. [University of Regina, Saskatchewan (Canada); Krueger, S. [University of Regina, Saskatchewan (Canada); Lolos, G. J. [University of Regina, Saskatchewan (Canada); Papandreou, Z. [University of Regina, Saskatchewan (Canada); Semenov, A. Yu. [University of Regina, Saskatchewan (Canada); Frye, John M. [Indiana Univ., Bloomington, IN (United States); Leckey, John P. [Indiana Univ., Bloomington, IN (United States); Shepherd, Matt [Indiana Univ., Bloomington, IN (United States); Bogart, T. [JLAB/CNU, Newport News, VA (United States); Lawrence, David W. [JLAB, Newport News, VA (United States); Smith, Elton S. [JLAB, Newport News, VA (United States)

2014-02-01T23:59:59.000Z

117

E-Print Network 3.0 - annual weight gain Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 4 5 6 7 8 0 0.5 1 1.5 2 x 10 -3 Lag (trials) RegressionWeight... on effective Gain Landscape The optimal strategy, maximizing expected gain, requires the subject to shift... of...

118

T-671: Red Hat system-config-firewall Lets Local Users Gain Root...  

Broader source: Energy.gov (indexed) [DOE]

1: Red Hat system-config-firewall Lets Local Users Gain Root Privileges T-671: Red Hat system-config-firewall Lets Local Users Gain Root Privileges July 19, 2011 - 2:42pm Addthis...

119

40 ELR 11106 ENVIRONMENTAL LAW REPORTER 11-2010 Gaining Ground: Wetlands,  

E-Print Network [OSTI]

40 ELR 11106 ENVIRONMENTAL LAW REPORTER 11-2010 Gaining Ground: Wetlands, Hurricanes .5% dis- count rate). Marine waters, wetlands, swamps, agricultural lands, and forests provide natural goods and services . The 1 . David Batker et al ., Gaining Ground: Wetlands, Hurricanes

Vermont, University of

120

Investigation of spectrally broad gain multiple-width quantum well material for colliding pulse  

E-Print Network [OSTI]

and MWQW devices, are shown in Fig. 1. At zero net modal gain, confined material gain is equal just below 1:5 kA cm�2 ; the net modal gain contribution is zero at 1560 nm, corresponding contributed to the zero net modal gain before the narrow wells at a current density of 2­3 kA cm�2 : The 6

Note: This page contains sample records for the topic "gain hands-on experience" 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

Room temperature broadband terahertz gains in graphene heterostructures based on inter-layer radiative transitions  

SciTech Connect (OSTI)

We exploit inter-layer radiative transitions to provide gains to amplify terahertz waves in graphene heterostructures. This is achieved by properly doping graphene sheets and aligning their energy bands so that the processes of stimulated emissions can overwhelm absorptions. We derive an expression for the gain estimation and show the gain is insensitive to temperature variation. Moreover, the gain is broadband and can be strong enough to compensate the free carrier loss, indicating graphene based room temperature terahertz lasers are feasible.

Tang, Linlong [Key Laboratory of High Energy Density Physics and Technology, College of Physics and Technology, Sichuan University, Chengdu, 610064 (China); Chongqing institute of green and intelligent technology, Chinese Academy of Sciences, Chongqing, 401122 (China); Du, Jinglei, E-mail: dujl@scu.edu.cn [Key Laboratory of High Energy Density Physics and Technology, College of Physics and Technology, Sichuan University, Chengdu, 610064 (China); Shi, Haofei, E-mail: shi@cigit.ac.cn; Wei, Dongshan; Du, Chunlei, E-mail: cldu@cigit.ac.cn [Chongqing institute of green and intelligent technology, Chinese Academy of Sciences, Chongqing, 401122 (China)

2014-10-15T23:59:59.000Z

122

EXTENSION CENTER FOR COMMUNITY VITALITY Continuing the Trend: The Brain Gain  

E-Print Network [OSTI]

EXTENSION CENTER FOR COMMUNITY VITALITY Continuing the Trend: The Brain Gain of the Newcomers Fellow, University of Minnesota Extension Center for Community Vitality #12;Brain Gain 2010 i Report Reviewers: Neil Linscheid Scott Chazdon Continuing the Trend: The Brain Gain of the Newcomers A GENERATIONAL

Minnesota, University of

123

Appropriate Realisation of MIMO Gain-Scheduled Controllers W.E. Leithead  

E-Print Network [OSTI]

Appropriate Realisation of MIMO Gain-Scheduled Controllers D.J.Leith W.E. Leithead Department characteristics of a controller designed by the gain-scheduling approach can be strongly dependent realisations for general MIMO gain-scheduled controllers. An extended local linear equivalence condition

Duffy, Ken

124

Interpolated versus Polytopic Gain Scheduling Control Laws for Fin/Rudder Roll Stabilisation of Ships  

E-Print Network [OSTI]

Interpolated versus Polytopic Gain Scheduling Control Laws for Fin/Rudder Roll Stabilisation be done through the use of gain-scheduling (GS) control law. In this study, a GS-control law is obtained and a desired stabilisation quality factor. Gain scheduling is a way to obtain parameter dependent controllers

Paris-Sud XI, Université de

125

A GAIN SCHEDULED CONTROL LAW FOR FIN/RUDDER ROLL STABILISATION OF SHIPS  

E-Print Network [OSTI]

A GAIN SCHEDULED CONTROL LAW FOR FIN/RUDDER ROLL STABILISATION OF SHIPS Hervé Tanguy , Guy Lebret leads to a gain-scheduled control law. The synthesis is based on multi-objective optimisation stabilisation; H control; Gain Scheduled Control; polytopic representation; LMI. 1. INTRODUCTION A major

Paris-Sud XI, Université de

126

GAiN: Distributed Array Computation with Python  

SciTech Connect (OSTI)

Scientific computing makes use of very large, multidimensional numerical arrays - typically, gigabytes to terabytes in size - much larger than can fit on even the largest single compute node. Such arrays must be distributed across a "cluster" of nodes. Global Arrays is a cluster-based software system from Battelle Pacific Northwest National Laboratory that enables an efficient, portable, and parallel shared-memory programming interface to manipulate these arrays. Written in and for the C and FORTRAN programming languages, it takes advantage of high-performance cluster interconnections to allow any node in the cluster to access data on any other node very rapidly. The "numpy" module is the de facto standard for numerical calculation in the Python programming language, a language whose use is growing rapidly in the scientific and engineering communities. numpy provides a powerful N-dimensional array class as well as other scientific computing capabilities. However, like the majority of the core Python modules, numpy is inherently serial. Our system, GAiN (Global Arrays in NumPy), is a parallel extension to Python that accesses Global Arrays through numpy. This allows parallel processing and/or larger problem sizes to be harnessed almost transparently within new or existing numpy programs.

Daily, Jeffrey A.

2009-04-24T23:59:59.000Z

127

Enhancing optical gains in Si nanocrystals via hydrogenation and cerium ion doping  

SciTech Connect (OSTI)

We report optical gain enhancements in Si nanocrystals (Si-NCs) via hydrogenation and Ce{sup 3+} ion doping. Variable stripe length technique was used to obtain gains. At 0.3?W/cm{sup 2} pumping power density of pulsed laser, net gains were observed together with gain enhancements after hydrogenation and/or Ce{sup 3+} ion doping; gains after loss corrections were between 89.52 and 341.95?cm{sup ?1}; and the photoluminescence (PL) lifetime was found to decrease with the increasing gain enhancement. At 0.04?W/cm{sup 2} power density, however, no net gain was found and the PL lifetime increased with the increasing PL enhancement. The results were discussed according to stimulated and spontaneous excitation and de-excitation mechanisms of Si-NCs.

Wang, Dong-Chen; Li, Yan-Li; Song, Sheng-Chi; Guo, Wen-Ping; Lu, Ming, E-mail: minglu55@fudan.edu.cn [Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433 (China); Chen, Jia-Rong [Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433 (China); School of Information Engineering, Guizhou Minzu University, Guiyang 550025 (China)

2014-07-28T23:59:59.000Z

128

Performance of the Gas Gain Monitoring system of the CMS RPC muon detector and effective working point fine tuning  

E-Print Network [OSTI]

The Gas Gain Monitoring (GGM) system of the Resistive Plate Chamber (RPC) muon detector in the Compact Muon Solenoid (CMS) experiment provides fast and accurate determination of the stability in the working point conditions due to gas mixture changes in the closed loop recirculation system. In 2011 the GGM began to operate using a feedback algorithm to control the applied voltage, in order to keep the GGM response insensitive to environmental temperature and atmospheric pressure variations. Recent results are presented on the feedback method used and on alternative algorithms.

S. Colafranceschi; L. Benussi; S. Bianco; L. Passamonti; D. Piccolo; D. Pierluigi; A. Russo; G. Saviano; C. Vendittozzi; M. Abbrescia; A. Aleksandrov; U. Berzano; C. Calabria; C. Carrillo; A. Colaleo; V. Genchev; P. Iaydjiev; M. Kang; K. S. Lee; F. Loddo; S. K. Park; G. Pugliese; M. Maggi; S. Shin; M. Rodozov; M. Shopova; G. Sultanov; P. Verwillingen

2012-09-18T23:59:59.000Z

129

TRIO experiment  

SciTech Connect (OSTI)

The TRIO experiment is a test of in-situ tritium recovery and heat transfer performance of a miniaturized solid breeder blanket assembly. The assembly (capsule) was monitored for temperature and neutron flux profiles during irradiation and a sweep gas flowed through the capsule to an anaytical train wherein the amounts of tritium in its various chemical forms were determined. The capsule was designed to operate at different temperatures and sweep gas conditions. At the end of the experiment the amount of tritium retained in the solid was at a concentration of less than 0.1 wppM. More than 99.9% of tritium generated during the experiment was successfully recovered. The results of the experiment showed that the tritium inventories at the beginning and at the end of the experiment follow a relationship which appears to be characteristic of intragranular diffusion.

Clemmer, R.G.; Finn, P.A.; Malecha, R.F.; Misra, B.; Billone, M.C.; Bowers, D.L.; Fischer, A.K.; Greenwood, L.R.; Mattas, R.F.; Tam, S.W.

1984-09-01T23:59:59.000Z

130

Comment on "Gain-assisted Superluminal Light Propagation"  

E-Print Network [OSTI]

Wang, Kuzmich and Dogariu, in their 20 July, 2000, Nature article, describe an experiment ostensibly measuring superluminal speeds of 310c via a few percent shift in time of an optical pulse undergoing anomalous dispersion in a pumped medium. This paper seems to have become part of the superluminal lore and is often referenced as a profound example of superluminality. We have closely examined the article and find serious flaws that need to be addressed.

Harry I. Ringermacher; Lawrence R. Mead

2002-09-04T23:59:59.000Z

131

"Like" Us! on Facebook http://www.facebook.com/USCWiSE  

E-Print Network [OSTI]

place at the AIAA Student Conference Region VI, 1st place at the AIAA International Student Conference for Undergraduates (REU) Program. The program allows undergraduates to gain hands-on experience in conducting

Meng, Ellis

132

Sustainability Internship Turtle Mountain LLC, the makers of the SO Delicious Dairy Free (SDDF) brand of products is looking for a Sustainability  

E-Print Network [OSTI]

Sustainability Internship Turtle Mountain LLC, the makers of the SO Delicious Dairy Free (SDDF) brand of products is looking for a Sustainability the opportunity to gain hands-on experience and learn lessons on two sustainability focused

GrĂĽnwald, Niklaus J.

133

A near infrared organic photodiode with gain at low bias voltage  

SciTech Connect (OSTI)

We demonstrate an organic photodiode with near infrared optical response out to about 1100 run with a gain of {approx}10 at 1000 run under 5V reverse bias. The diodes employ a soluble naphthalocyanine with a peak absorption coefficient of {approx}10{sup 5} cm{sup -1} at 1000 nm. In contrast to most organic photodiodes, no exciton dissociating material is used. At zero bias, the diodes are inefficient with an external quantum efficiency of {approx} 10{sup -2}. In reverse bias, large gain occurs and is linear with bias voltage above 4V. The observed gain is consistent with a photoconductive gain mechanism.

Campbell, Ian H [Los Alamos National Laboratory; Crone, Brian K [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

134

E-Print Network 3.0 - antipsychotic-induced weight gain Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

movement disorders (AIMDs) have been collectively known as extrapyramidal syndromes (EPS... seen with typical antipsychotics (e.g., weight gain, hyperlipidemia, and...

135

E-Print Network 3.0 - antipsychotics-induced weight gain Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

movement disorders (AIMDs) have been collectively known as extrapyramidal syndromes (EPS... seen with typical antipsychotics (e.g., weight gain, hyperlipidemia, and...

136

Problemstellung "Brain Drain" bzw. "Brain Gain" in der Region Niederösterreich-Mitte.  

E-Print Network [OSTI]

??Die vorliegende Diplomarbeit befasst sich mit dem Thema des „Brain Drain“ und „Brain Gain“ in der Region Niederösterreich Mitte. Unter "Brain Drain" versteht man die… (more)

Binder, Paul

2012-01-01T23:59:59.000Z

137

Post-Genomics Nanotechnology Is Gaining Momentum: Nanoproteomics and Applications in Life Sciences  

E-Print Network [OSTI]

Post-Genomics Nanotechnology Is Gaining Momentum: Nanoproteomics and Applications in Life Sciences of nanotechnology applications, including nanoporous structures, functionalized nanoparticles, quantum dots

Tan, Weihong

138

experiment, collaboration  

E-Print Network [OSTI]

-Departamento Energias Renovables, Plataforma Solar de Almeria, E-04080 Almeria, Spain Departamento de Lenguajes y ca. factor 10 less complex then imaging solar Cerenkov exp.:smaller cost, fewer systematic errors #12; 5 Rainer Plaga The GRAAL experiment, ECRS Lodz July 2000 Location of GRAAL " Plataforma Solar de

139

Education in Safeguards and Security Technology Meeting Challenges with Technology and Experience  

SciTech Connect (OSTI)

Education and hands-on experience are crucial to ensuring a workforce of safeguards and security professionals who can meet the challenges currently faced in global nuclear safeguards and security. Global demand for nuclear energy and technology, the new Strategic Arms Reduction Treaty (START), and the cleanup of Cold War facilities have resulted in an increased need for trained safeguards and security personnel. At the same time, the global community is facing a growing shortage of experienced workers with hands-on knowledge of nuclear material processing. Limited access to operating facilities has dramatically reduced the opportunities for next-generation practitioners to obtain hands-on training experience. To address these needs, the Safeguards Technology Integration Center (STIC) at Oak Ridge National Laboratory was created as a Department of Energy User Facility to provide access both to the latest technology and to field-experienced professionals. The STIC provides real-world conditions, process equipment mock-ups, and controlled access to encapsulated radioactive materials (including highly enriched uranium and plutonium) for training and technology evaluation encompassing various techniques and skills, such as Radiation Inspection Systems, Containment and Surveillance Systems, Nondestructive Assay, Security System Performance Testing, and System Design and Analysis. The STIC facilities, laboratories, test beds, and training facilities are described along with the more notable aspects of the training program, which has included more than 1000 participants in the last four years.

Paschal, Linda J [ORNL; Chapman, Jeffrey Allen [ORNL; Rowe, Nathan C [ORNL; Stinson, Brad J [ORNL

2011-01-01T23:59:59.000Z

140

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: PROCEDURES FOR ESTIMATING  

E-Print Network [OSTI]

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: PROCEDURES FOR ESTIMATING that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about

Note: This page contains sample records for the topic "gain hands-on experience" 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

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: SUMMARY OF PROCEDURES FOR  

E-Print Network [OSTI]

SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: SUMMARY OF PROCEDURES that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about

142

PRODUCTIVITY GAINS IN U.S. FISHERIES . FREDERICK W. BELL AND RICHARD K. KINOSHITA I  

E-Print Network [OSTI]

PRODUCTIVITY GAINS IN U.S. FISHERIES . FREDERICK W. BELL AND RICHARD K. KINOSHITA I ABSTRACT Changes in productivity or annual landings per fisherman help to determine the economic welfare of the fishing industry. Although a study of productivity gains in various U.S. fishing fleets over the last 20

143

A low power, high dynamic-range, broadband variable gain amplifier for an ultra wideband receiver  

E-Print Network [OSTI]

gain steps. The gain control scheme includes fine tuning (2dB/step) by changing the bias voltage of the proposed programmable current mirror, and coarse tuning (14dB/step) by switching on/off the source degeneration resistors in the differential pairs...

Chen, Lin

2007-09-17T23:59:59.000Z

144

Study in Indonesia and gain credit towards your degree! DevelopmentStudiesImmersionProgram ACICIS  

E-Print Network [OSTI]

Study in Indonesia and gain credit towards your degree! DevelopmentStudiesImmersionProgram ACICIS an internship in Indonesia! © Photograph by James Walsh #12;w w w . a c i c i s . m u r d o c h . e d u . a u development issues in Indonesia while also gaining im- portant practical skills related to advocacy

145

Study in Indonesia and gain credit towards your degree! Unleash your creativity...  

E-Print Network [OSTI]

Study in Indonesia and gain credit towards your degree! Unleash your creativity... Spend a semester at Indonesia's premiere institution for visual and performing arts... StudytheArtsinIndonesia Study in Indonesia and gain credit towards your degree! ACICIS #12;w w w . a c i c i s . m u r d o c h . e d u . a u

146

Gain Scheduling Control Design of an Erbium-Doped Fibre Amplifier by Pump Compensation  

E-Print Network [OSTI]

Gain Scheduling Control Design of an Erbium-Doped Fibre Amplifier by Pump Compensation Min Ding amplifier's (EDFA's) dynamics. We demonstrate a gain scheduling scheme on a PID controller that minimizes- pensation. The scheduled controller requires only three easily accessible parameters: the total input power

Pavel, Lacra

147

Robust Gain Scheduling techniques for Adaptive control Patrice Antoinette and Gilles Ferreres  

E-Print Network [OSTI]

Robust Gain Scheduling techniques for Adaptive control Patrice Antoinette and Gilles Ferreres for implementing the LFT controller is reduced. This controller is scheduled as a function of the parameters) and of gain- scheduled control (LPV methods) has been (much) less investigated, see for instance [10], [11

148

Coat Color and Solar Heat Gain in Animals Author(s): Glenn E. Walsberg  

E-Print Network [OSTI]

when exposed to solar radiation than do light surfaces. For ani- mals such as birds or mammalsCoat Color and Solar Heat Gain in Animals Author(s): Glenn E. Walsberg Source: BioScience, Vol. 33://www.jstor.org #12;Coat Color and Solar Heat Gain in Animals Glenn E. Walsberg The relationbetween coat color

Cavitt, John F.

149

Optical gain from the direct gap transition of Ge-on-Si at room temperature  

E-Print Network [OSTI]

We report direct band gap optical gain of tensile strained n+ epitaxial Ge-on-Si at room temperature, which confirms that band-engineered Ge-on-Si is a promising gain medium for monolithic optical amplifiers and lasers on Si.

Liu, Jifeng

150

Gain-scheduled `1 -optimal control for boiler-turbine dynamics  

E-Print Network [OSTI]

, into the mechanical energy acting on the turbine and generator. The steam generated in the boiler system servesGain-scheduled `1 -optimal control for boiler-turbine dynamics with actuator saturation Pang; accepted 2 June 2003 Abstract This paper presents a gain-scheduled approach for boiler-turbine controller

Shamma, Jeff S.

151

Wal-Mart Experience: Part One  

SciTech Connect (OSTI)

In 2005, Wal-Mart opened experimental stores in McKinney, Texas (hot climate), and Aurora, Colo. (cold climate). With these projects Wal-Mart can: (1)Learn how to achieve sustainability improvements, (2)Gain experience with the design, design process, and operations for some specific advanced technologies, (3)Understand energy use patterns in their stores more clearly, (4)Lay groundwork for better understanding of how to achieve major carbon footprint reductions; and (5)Measure the potential benefits of specific technologies tested.

MacDonald, M.; Deru, M.

2007-09-01T23:59:59.000Z

152

Analysis of gain margins and phase margins of a nonlinear reactor control system  

SciTech Connect (OSTI)

By using the gain-phase margin tester, the parameter-plane method for the nonlinear control system is extended to frequency-domain related to gain margin and phase margin. The stability and self-excited oscillation are investigated with respect to the adjustable parameters. The useful information concerning the effect of adjustable parameters can be obtained, after the describing function curves and the boundaries of constant gain margin and constant phase margin are plotted in the parameter plane. Some interesting consequences are offered by employing the practical control system of a material testing reactor.

Chang, C.H.; Chang, M.K. (Chung Cheng Inst. of Technology, Tao-Yuan (Taiwan, Province of China))

1994-08-01T23:59:59.000Z

153

Calibration of photomultipliers gain used in the J-PET detector  

E-Print Network [OSTI]

Photomultipliers are commonly used in commercial PET scanner as devices which convert light produced in scintillator by gamma quanta from positron-electron annihilation into electrical signal. For proper analysis of obtained electrical signal, a photomultiplier gain curve must be known, since gain can be significantly different even between photomultipliers of the same model. In this article we describe single photoelectron method used for photomultipliers calibration applied for J-PET scanner, a novel PET detector being developed at the Jagiellonian University. Description of calibration method, an example of calibration curve and gain of few R4998 Hamamatsu photomultipliers are presented.

Bednarski, T; Moskal, P; Bia?as, P; Giergiel, K; Kap?on, ?; Kochanowski, A; Korcyl, G; Kowal, J; Kowalski, P; Kozik, T; Krzemie?, W; Molenda, M; Moskal, I; Nied?wiecki, Sz; Pa?ka, M; Pawlik, M; Raczy?ski, L; Rudy, Z; Salabura, P; Sharma, N G; Silarski, M; S?omski, A; Smyrski, J; Strzelecki, A; Szyma?ski, K; Wi?licki, W; Witkowski, P; Zieli?ski, M; Zo?, N

2013-01-01T23:59:59.000Z

154

Negative differential gain in quantum dot systems: Interplay of structural properties and many-body effects  

SciTech Connect (OSTI)

The saturation behaviour of optical gain with increasing excitation density is an important factor for laser device performance. For active materials based on self-organized InGaAs/GaAs quantum dots, we study the interplay between structural properties of the quantum dots and many-body effects of excited carriers in the optical properties via a combination of tight-binding and quantum-kinetic calculations. We identify regimes where either phase-space filling or excitation-induced dephasing dominates the saturation behavior of the optical gain. The latter can lead to the emergence of a negative differential material gain.

Goldmann, E., E-mail: goldmann@itp.uni-bremen.de; Jahnke, F. [Institute for Theoretical Physics, University of Bremen, Bremen 28359 (Germany); Lorke, M.; Frauenheim, T. [Bremen Center for Computational Materials Science BCCMS, University of Bremen, Bremen 28359 (Germany)

2014-06-16T23:59:59.000Z

155

E-Print Network 3.0 - age-dependent weight gain Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

search results for: age-dependent weight gain Page: << < 1 2 3 4 5 > >> 1 On the Political Mechanisms of the Environmental Kuznets Curve for Global Water Quality1 Summary:...

156

Large inherent optical gain from the direct gap transition of Ge thin films  

E-Print Network [OSTI]

The recent demonstration of Ge-on-Si diode lasers renews the interest in the unique carrier dynamics of Ge involving both direct (?) and indirect (L) valleys. Here, we report a large inherent direct gap optical gain ...

Wang, Xiaoxin

157

Extended infrared photoresponse and gain in chalcogen-supersaturated silicon photodiodes  

E-Print Network [OSTI]

Highly supersaturated solid solutions of selenium or sulfur in silicon were formed by ion implantation followed by nanosecond pulsed laser melting. n[superscript +]p photodiodes fabricated from these materials exhibit gain ...

Sullivan, Joseph Timothy

158

Mechanisms of ionizing-radiation-induced gain degradation in lateral PNP BJTs  

SciTech Connect (OSTI)

The physical mechanisms for gain degradation in laterals PNP bipolar transistors are examined experimentally and through simulation. The effect of increased surface recombination velocity at the base surface is moderated by positive oxide charge.

Schmidt, D.M.; Wu, A.; Schrimpf, R.D. [Arizona Univ., Tucson, AZ (United States), Dept. of ECE; Fleetwood, D.M. [Sandia National Labs., Albuquerque, NM (United States); Pease, R.L. [RLP Research, Inc., Albuquerque, NM (United States); Combs, W.E. [Naval Surface Warfare Center, Crane, IN (United States). Crane Div.

1996-03-01T23:59:59.000Z

159

Gain margin and phase margin analysis of a nuclear reactor control system with multiple transport lags  

SciTech Connect (OSTI)

In this paper a method for finding the boundaries of constant gain margin and phase margin of control systems with transport lags and adjustable parameters is presented. The considered systems are first modified by adding a gain-phase margin tester, then the characteristic equations are formulated, and finally the stability equations are used to find the boundaries of constant gain margin and phase margin. The main advantage of the proposed method is to obtain complete information about the effects of adjustable parameters on gain margin and phase margin and their corresponding crossover frequencies. In order to show the usefulness of the proposed method a nuclear reactor control system with multiple transport lags is chosen as one of the examples.

Chang, C.H. (Institute of Electronics, National Chiao-Tung Univ. (TW)); Han, K.W. (Chung-Shan Institute and National Chiao-Tung Univ., Hsinchu (TW))

1989-08-01T23:59:59.000Z

160

U-068:Linux Kernel SG_IO ioctl Bug Lets Local Users Gain Elevated...  

Broader source: Energy.gov (indexed) [DOE]

Linux Kernel SGIO ioctl Bug Lets Local Users Gain Elevated Privileges PLATFORM: Red Hat Enterprise Linux Desktop (v. 6) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat...

Note: This page contains sample records for the topic "gain hands-on experience" 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

Complexity within the Air Force acquisition system gaining insight from a theory of collapse  

E-Print Network [OSTI]

Joseph Tainter's theory of societal collapse is applied in an examination of the U.S. Air Force's aircraft acquisition system in order to gain insight into the enterprise's lagging performance. Theories of collapse at both ...

Marticello, Daniel Nicholas, Jr

2012-01-01T23:59:59.000Z

162

Spend a semester in Indonesia to gain linguistic and classroom competence!  

E-Print Network [OSTI]

Spend a semester in Indonesia to gain linguistic and classroom competence! Study in Indonesia institu- tions throughout Indonesia since 1994, offering a range of study options and in-country support

163

DEMONSTRATION OF 3D EFFECTS WITH HIGH GAIN AND EFFICIENCY IN A UV FEL OSCILLATOR  

SciTech Connect (OSTI)

We report on the performance of a high gain UV FEL oscillator operating on an energy recovery linac at Jefferson Lab. The high brightness of the electron beam leads to both gain and efficiency that cannot be reconciled with a one-dimensional model. Three-dimensional simulations do predict the performance with reasonable precision. Gain in excess of 100% per pass and an efficiency close to 1/2NW, where NW is the number of wiggler periods, is seen. The laser mirror tuning curves currently permit operation in the wavelength range of 438 to 362 nm. Another mirror set allows operation at longer wavelengths in the red with even higher gain and efficiency.

Stephen Benson; George Biallas; Keith Blackburn; James Boyce; Donald Bullard; James Coleman; Cody Dickover; David Douglas; Forrest Ellingsworth; Pavel Evtushenko; Carlos Hernandez-Garcia; Christopher Gould; Joseph Gubeli; David Hardy; Kevin Jordan; John Klopf; James Kortze; Robert Legg; Matthew Marchlik; Steven Moore; George Neil; Thomas Powers; Daniel Sexton; Michelle D. Shinn; Christopher Tennant; Richard Walker; Anne Watson; Gwyn Williams; Frederick Wilson; Shukui Zhang

2011-03-01T23:59:59.000Z

164

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

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

Unspecified Flaw Lets Remote Users Gain Access U-212: RSA Authentication Manager Flaws Permit Cross-Site and Cross-Frame Scripting and URL Redirection Attacks U-026: Cisco Small...

165

High gain proportional rf control stability at TESLA cavities Elmar Vogel  

E-Print Network [OSTI]

High gain proportional rf control stability at TESLA cavities Elmar Vogel Deutsches Elektronen) based on TESLA technology. Additional control loops improve the field regulation by treating repetitive loops is desirable for the strong suppression of nonpredictive and nonrepetitive disturbances. TESLA

166

Spatial Interference Mitigation for Multiple Input Multiple Output Ad Hoc Networks: MISO Gains  

E-Print Network [OSTI]

Spatial Interference Mitigation for Multiple Input Multiple Output Ad Hoc Networks: MISO Gains beamforming for a multiple input single output (MISO) ad hoc network to increase the density of successful

Paris-Sud XI, Université de

167

E-Print Network 3.0 - avalanche gain feasibility Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

employed. 3.2.2 Gain of an avalanche photodiode. If we denote the electron ionisation... coefficient by h and the width of the depletion layer by w then the ... Source: University...

168

Gain-scheduled controller design for load-following in static space nuclear power systems  

E-Print Network [OSTI]

of variations in the fuel temperature reactivity feedback coeficient on the load-following capabilities of the SNPS. Robustness analysis results of the gain-scheduled compensator demonstrate that the proposed control concept exhibits a significant degree...

Onbasioglu, Fetiye Ozlem

1993-01-01T23:59:59.000Z

169

Optical gain and lasing from band-engineered Ge-on-Si at room temperature  

E-Print Network [OSTI]

We present theoretical modeling and experimental results of optical gain and lasing from tensile-strained, n[superscript +] Ge-on-Si at room temperature. Compatible with silicon CMOS, these devices are ideal for large-scale ...

Liu, Jifeng

170

Tuning gain and bandwidth of traveling wave tubes using metamaterial beam-wave interaction structures  

SciTech Connect (OSTI)

We employ metamaterial beam-wave interaction structures for tuning the gain and bandwidth of short traveling wave tubes. The interaction structures are made from metal rings of uniform cross section, which are periodically deployed along the length of the traveling wave tube. The aspect ratio of the ring cross sections is adjusted to control both gain and bandwidth. The frequency of operation is controlled by the filling fraction of the ring cross section with respect to the size of the period cell.

Lipton, Robert, E-mail: lipton@math.lsu.edu; Polizzi, Anthony, E-mail: polizzi@math.lsu.edu [Department of Mathematics, Louisiana State University, Baton Rouge, Louisiana 70803-4918 (United States)

2014-10-14T23:59:59.000Z

171

A circuit for gain measurement of frequency referenced digitally self tuned filters  

E-Print Network [OSTI]

A CIRCUIT FOR GAIN MEASUREMENT OF FREQUENCY REFERENCED DIGITALLY SELF TUNED FILTERS A Thesis by ROBERT WAKE COOK Submitted to the Graduate College of Texas ASSAM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1985 Major Subject: Electrical Engineering A CIRCUIT FOR GAIN MEASUREMENT OF FREQUENCY REFERENCED DIGITALLY SELF TUNED FILTERS A Thesis bv ROl3ERT WAKE COOK Approved as to style and content by: Dr. Randal! L. Geiger (Chairman...

Cook, Robert Wake

2012-06-07T23:59:59.000Z

172

Gain media edge treatment to suppress amplified spontaneous emission in a high power laser  

DOE Patents [OSTI]

A novel method and apparatus for suppressing ASE and/or parasitic oscillation modes in a laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser gain media and by bonding such edges to a predetermined electromagnetic absorbing material arranged adjacent to the entire outer surface of the peripheral edges of the roughened laser gain media, ASE, parasitic oscillation modes and/or residual pump energy can be effectively suppressed.

Hackel, Lloyd A. (Livermore, CA); Soules, Thomas F. (Livermore, CA); Fochs, Scott N. (Livermore, CA); Rotter, Mark D. (San Ramon, CA); Letts, Stephan A. (San Ramon, CA)

2011-02-22T23:59:59.000Z

173

Gain media edge treatment to suppress amplified spontaneous emission in a high power laser  

DOE Patents [OSTI]

A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser gain media and by bonding such edges using a substantially high index bonding elastomer or epoxy to a predetermined electromagnetic absorbing arranged adjacent to the entire outer surface of the peripheral edges of the roughened laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

Hackel, Lloyd A. (Livermore, CA); Soules, Thomas F. (Livermore, CA); Fochs, Scott N. (Livermore, CA); Rotter, Mark D. (San Ramon, CA); Letts, Stephan A. (San Ramon, CA)

2008-12-09T23:59:59.000Z

174

Effects of finite gain-bandwidth products on switched capacitor filters  

E-Print Network [OSTI]

. 'vlav 198o Major Subject: Electrical Engineering EFFECTS OF FINITE GAIN-BANDWIDTH PRODUCTS ON SWITCHED CAPACITOR FILTERS A Thesis by FREDERIC D. MARCIANO Approved as to style and content by: o re E. Sanchez-Sinencio (Chairman of Committee... Chairman of Advisory Committee: Dr. E. Sanchez-Sinencio A methodology for the systematic study of the effects of finite gain-bandwidth products on switched capacitor filters is presented. The algorithms are established for a general structure comprising...

Marciano, Frederic D.

1985-01-01T23:59:59.000Z

175

Room location (design) in accordance with the sol-air temperature and solar heat gain  

E-Print Network [OSTI]

ROOM LOCATION (DESIGN) IN ACCORDANCE WITH THE SOL-AIR TEMPERATURE AND SOLAR HEAT GAIN A Thesis GARY LYNN PORTER Submitted to the Graduate College of Texas ASM University in parital fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1977 Major Subject: Meteorology ROOM LOCATION (DESIGN) IN ACCORDANCE WITH THE SOL-AIR TEMPERATURE AND SOLAR HEAT GAIN A Thesis by GARY LYNN PORTER Approved as to style and content by: hairman of Committee) (Head of Department) ( (Q...

Porter, Gary Lynn

1977-01-01T23:59:59.000Z

176

Operational experience of the OC-OTEC experiments at NELH  

SciTech Connect (OSTI)

The Solar Energy Research Institute, under funding and program direction from the US Department of Energy, has been operating a small-scale test apparatus to investigate key components of open- cycle ocean thermal energy conversion (OC-OTEC). The apparatus started operations in October 1987 and continues to provide valuable information on heat-and mass-transfer processes in evaporators and condensers, gas sorption processes as seawater is depressurized and repressurized, and control and instrumentation characteristics of open-cycle systems. Although other test facilities have been used to study some of these interactions, this is the largest apparatus of its kind to use seawater since Georges Claude`s efforts in 1926. The information obtained from experiments conducted in this apparatus is being used to design a larger scale experiment in which a positive net power production is expected to be demonstrated for the first time with OC-OTEC. This paper describes the apparatus, the major tests conducted during its first 18 months of operation, and the experience gained in OC-OTEC system operation. 13 refs., 8 figs.

Link, H.

1989-02-01T23:59:59.000Z

177

H Gain Scheduling for Discrete-Time Systems with Control Delays and Time-Varying Parameters: a BMI Approach  

E-Print Network [OSTI]

H Gain Scheduling for Discrete-Time Systems with Control Delays and Time-Varying Parameters: a BMI. By using a memory at the feedback loop, a discrete gain scheduled controller which minimizes an upper bound, there is no denying the fact that gain scheduling has represented an important issue within control system theory [1

178

Evaluating user experience in green buildings in relation to  

E-Print Network [OSTI]

Evaluating user experience in green buildings in relation to workplace culture and context Zosia the relationship between green building design and workplace design practice, and to examine the role significant gains to be made from integrating green building with workplace design strategies from the outset

Pedersen, Tom

179

Operational experiences in lead-acid batteries for photovoltaic systems  

SciTech Connect (OSTI)

MIT Lincoln Laboratory has designed photovoltaic systems which use different kinds of lead-acid batteries, including units normally used for starting, lighting, and ignition (SLI) and for motive power. The experiences gained from four of these battery subsystems during field operation, particularly battery type versus system load, versus performance characteristics, and versus expected lifetime, are compared and analyzed.

Brench, B. L.

1981-01-01T23:59:59.000Z

180

ACCELERATORS FOR PHYSICS EXPERIMENTS: FROM DIAGNOSTICS AND CONTROL TO DESIGN  

E-Print Network [OSTI]

ACCELERATORS FOR PHYSICS EXPERIMENTS: FROM DIAGNOSTICS AND CONTROL TO DESIGN Elena Wildner;Abstract This thesis develops techniques of control-methods, optimization, and diagnostics of accelerator. From a solid knowledge of the characteristics of the manufactured accelerator equipment gained from in

Haviland, David

Note: This page contains sample records for the topic "gain hands-on experience" 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

Intern experience at Al-Raha establishment: an internship report  

E-Print Network [OSTI]

. These objectives were (1) to become familiar with the organizational characteristics of the company and functions of the various departments; (2) to make an identifiable contribution in the mechanical engineering field; and (3) to gain practical experience... ................................... viii LIST OF FIGURES ..................................... x CHAPTER I - INTRODUCTION ............................ 1 CHAPTER II - THE AUTHOR'S INTERNSHIP PROJECT AND WORK POSITION ....................... 4 A. The Internship Project...

Zard Aboujaude, Roger Elias, 1958-

2013-03-13T23:59:59.000Z

182

Building accurate initial models using gain functions for waveform inversion in the Laplace domain  

E-Print Network [OSTI]

We suggest an initial model building technique using time gain functions in the Laplace domain. Applying the gain expressed as a power of time is equivalent to taking the partial derivative of the Laplace-domain wavefield with respect to a damping constant. We construct an objective function, which minimizes the logarithmic differences between the gained field data and the partial derivative of the modeled data with respect to the damping constant. We calculate the modeled wavefield, the partial derivative wavefield, and the gradient direction in the Laplace domain using the analytic Green's function starting from a constant velocity model. This is an efficient method to generate an accurate initial model for a following Laplace-domain inversion. Numerical examples using two marine field datasets confirm that a starting model updated once from a scratch using the gradient direction calculated with the proposed method can be successfully used for a subsequent Laplace-domain inversion.

Wansoo Ha; Changsoo Shin

2014-08-20T23:59:59.000Z

183

Fuel Cycle Analysis Framework Base Cases for the IAEA/INPRO GAINS Collaborative Project  

SciTech Connect (OSTI)

Thirteen countries participated in the Collaborative Project GAINS “Global Architecture of Innovative Nuclear Energy Systems Based on Thermal and Fast Reactors Including a Closed Fuel Cycle”, which was the primary activity within the IAEA/INPRO Program Area B: “Global Vision on Sustainable Nuclear Energy” for the last three years. The overall objective of GAINS was to develop a standard framework for assessing future nuclear energy systems taking into account sustainable development, and to validate results through sample analyses. This paper details the eight scenarios that constitute the GAINS framework base cases for analysis of the transition to future innovative nuclear energy systems. The framework base cases provide a reference for users of the framework to start from in developing and assessing their own alternate systems. Each base case is described along with performance results against the GAINS sustainability evaluation metrics. The eight cases include four using a moderate growth projection and four using a high growth projection for global nuclear electricity generation through 2100. The cases are divided into two sets, addressing homogeneous and heterogeneous scenarios developed by GAINS to model global fuel cycle strategies. The heterogeneous world scenario considers three separate nuclear groups based on their fuel cycle strategies, with non-synergistic and synergistic cases. The framework base case analyses results show the impact of these different fuel cycle strategies while providing references for future users of the GAINS framework. A large number of scenario alterations are possible and can be used to assess different strategies, different technologies, and different assumptions about possible futures of nuclear power. Results can be compared to the framework base cases to assess where these alternate cases perform differently versus the sustainability indicators.

Brent Dixon

2012-09-01T23:59:59.000Z

184

FEL and Optical Klystron Gain for an Electron Beam with Oscillatory Energy Distribution  

SciTech Connect (OSTI)

If the energy spread of a beam is larger then the Pierce parameter, the FEL gain length increases dramatically and the FEL output gets suppressed. We show that if the energy distribution of such a beam is made oscillatory on a small scale, the gain length can be considerably decreased. Such an oscillatory energy distribution is generated by first modulating the beam energy with a laser via the mechanism of inverse FEL, and then sending it through a strong chicane. We show that this approach also works for the optical klystron enhancement scheme. Our analytical results are corroborated by numerical simulations.

Stupakov, G.; Ding, Y.; Huang, Z.; /SLAC

2009-12-09T23:59:59.000Z

185

High Average Power Laser Gain Medium With Low Optical Distortion Using A Transverse Flowing Liquid Host  

DOE Patents [OSTI]

A high average power, low optical distortion laser gain media is based on a flowing liquid media. A diode laser pumping device with tailored irradiance excites the laser active atom, ion or molecule within the liquid media. A laser active component of the liquid media exhibits energy storage times longer than or comparable to the thermal optical response time of the liquid. A circulation system that provides a closed loop for mixing and circulating the lasing liquid into and out of the optical cavity includes a pump, a diffuser, and a heat exchanger. A liquid flow gain cell includes flow straighteners and flow channel compression.

Comaskey, Brian J. (Walnut Creek, CA); Ault, Earl R. (Livermore, CA); Kuklo, Thomas C. (Oakdale, CA)

2005-07-05T23:59:59.000Z

186

Long wavelength, high gain InAsSb strained-layer superlattice photoconductive detectors  

DOE Patents [OSTI]

A high gain photoconductive device for 8 to 12 .mu.m wavelength radiation including an active semiconductor region extending from a substrate to an exposed face, the region comprising a strained-layer superlattice of alternating layers of two different InAs.sub.1-x Sb.sub.x compounds having x>0.75. A pair of spaced electrodes are provided on the exposed face, and changes in 8 to 12 .mu.m radiation on the exposed face cause a large photoconductive gain between the spaced electrodes.

Biefeld, Robert M. (Albuquerque, NM); Dawson, L. Ralph (Albuquerque, NM); Fritz, Ian J. (Albuquerque, NM); Kurtz, Steven R. (Albuquerque, NM); Zipperian, Thomas E. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

187

Benefits of the International Residential Code's Maximum Solar heat Gain Coefficient Requirement for Windows  

E-Print Network [OSTI]

Texas adopted in its residential building energy code a maximum 0.40 solar heat gain coefficient (SHGC) for fenestration (e.g., windows, glazed doors and skylights)-a critical driver of cooling energy use, comfort and peak demand. An analysis...

Stone, G. A.; DeVito, E. M.; Nease, N. H.

2002-01-01T23:59:59.000Z

188

Neural Computation 9, 971983 (1997) Physiological Gain Leads to High ISI Variability in  

E-Print Network [OSTI]

Neural Computation 9, 971­983 (1997) Physiological Gain Leads to High ISI Variability in a Simple@phy.ucsf.edu, ken@phy.ucsf.edu Abstract To understand the interspike interval (ISI) variability displayed by visual that have previously been proposed. When ISI's are dominated by post­spike recovery, 1= p N arguments hold

Columbia University

189

CMOS Photodiodes with Substrate Openings for Higher Conversion Gain in Active Pixel Sensors  

E-Print Network [OSTI]

1 CMOS Photodiodes with Substrate Openings for Higher Conversion Gain in Active Pixel Sensors J. S' in photodiodes used in active pixel sensor. The discussion is based on experimental data from contact diffusion (n+ pepi) photodiodes fabricated on a standard 0.35 µm CMOS technology. I. Introduction The readout

Hornsey, Richard

190

The physics issues that determine inertial confinement fusion target gain and driver requirements: A tutorial*  

E-Print Network [OSTI]

The physics issues that determine inertial confinement fusion target gain and driver requirements ``bookkeeping'' of input parametrized by ICF drivers' coupling efficiencies to the target, and subsequent requirements will be discussed for both the direct drive driver impinging directly on the target and indirect

191

Delivering pump light to a laser gain element while maintaining access to the laser beam  

DOE Patents [OSTI]

A lens duct is used for pump delivery and the laser beam is accessed through an additional component called the intermediate beam extractor which can be implemented as part of the gain element, part of the lens duct or a separate component entirely.

Beach, Raymond J. (Livermore, CA); Honea, Eric C. (Sunol, CA); Payne, Stephen A. (Castro Valley, CA)

2001-01-01T23:59:59.000Z

192

Gain and Equalization Adaptation to Optimize the Vertical Eye Opening in a Wireline Receiver  

E-Print Network [OSTI]

loss and skin-effect can severely limit a wireline receiver's ability to operate at high-speeds, Toronto, Ontario, Canada Abstract--A strategy for the adaptation of an equalizer and variable gain amplifier is presented. Both control signals are generated by examining the probability density function

Chan Carusone, Tony

193

THE CONCEPT OF ISOCHORIC CENTRAL SPARK IGNITION AND ITS FUEL GAIN IN INERTIAL FUSION  

E-Print Network [OSTI]

1 THE CONCEPT OF ISOCHORIC CENTRAL SPARK IGNITION AND ITS FUEL GAIN IN INERTIAL FUSION of the best methods in inertial confinement fusion (ICF) is the concept of central spark ignition, consisting of two distinct regions named as hot and cold regions and formed by hydro-dynamical implosion of fuel

Boyer, Edmond

194

Gain Scheduled Control of a Solar Power Plant Tor A. Johansen1  

E-Print Network [OSTI]

Gain Scheduled Control of a Solar Power Plant Tor A. Johansen1 , Kenneth J. Hunt2 and Idar Petersen to a pilot-scale solar power plant is described. A eld of parabolic collectors focus the solar radiation onto a tube where oil is pumped through in order to collect the solar power. The control problem is to keep

Johansen, Tor Arne

195

Trade and plant level productivity gains: Role of Import Liberalisation, Technological Spillovers and Variety Growth in  

E-Print Network [OSTI]

1 Trade and plant level productivity gains: Role of Import Liberalisation, Technological Spillovers liberalization impact productivity at the micro level in the economy? Using a panel data of Indian manufacturing productivity growth at the production level in the economy. These mechanisms include trade induced pro

Bandyopadhyay, Antar

196

The Maroon and White Game: A simulation of trust and long-term gains and losses  

E-Print Network [OSTI]

to players the advantages of systems thinking, as opposed to sub-optimization, during a live playing of the game. Although effective in illustrating the greater mathematic gains incurred from systems thinking to a community-at-large, the simulation might...

Smith, James P.; Rybkowski, Zofia K.

2013-07-31T23:59:59.000Z

197

Study in Indonesia and gain credit towards your degree! InternationalRelationsinIndonesia  

E-Print Network [OSTI]

Study in Indonesia and gain credit towards your degree! InternationalRelationsinIndonesia, Europe and the United States as well as Indonesia, are highly qualified and ex- perienced as both the Australia Indonesia Institute, the Department of Education, Employment and Workplace Relations, the Myer

198

High-gain weakly nonlinear flux-modulated Josephson parametric amplifier using a SQUID-array  

E-Print Network [OSTI]

Chalmers University of Technology, S-41296 Goteborg, Sweden. (Dated: June 20, 2014) Abstract We have gain satu- ration at extremely low input power. A strong effort is thus made to increase the bandwidth modulates this nonlinear inductance at 2P , and is responsible for a four-wave mixing such that 2P = S + I

Boyer, Edmond

199

Solar Heat Gain through a Skylight in a Light Well J. H. Klems  

E-Print Network [OSTI]

Solar Heat Gain through a Skylight in a Light Well J. H. Klems Building Technologies Department on a skylight mounted on a light well of significant depth are presented. It is shown that during the day much of the solar energy that strikes the walls of the well does not reach the space below. Instead, this energy

200

Bounds on the Gain of Network Coding and Broadcasting in Wireless Networks  

E-Print Network [OSTI]

1 Bounds on the Gain of Network Coding and Broadcasting in Wireless Networks Junning Liu , Dennis the possibility of network coding and broadcasting in their model, and recent work has suggested network coding and broadcasting in a )10 random topology that the throughput scales as ¥§¦¨¤©2

Massachusetts at Amherst, University of

Note: This page contains sample records for the topic "gain hands-on experience" 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

Gain assisted propagation of surface plasmon polaritons on planar metallic waveguides  

E-Print Network [OSTI]

and optical gain in InGaAsP quantum well lasers," Semiconductors 36, 344-353 (2002). 17. S. Y. Hu, D. B. Young compensate for the absorption losses in the metal. The conditions for existence of a surface plasmon

Fainman, Yeshaiahu

202

Gain Improvement of Er-doped Amplifiers for the Feedback Filters  

E-Print Network [OSTI]

contrast between these two materials and the electro-optical properties of Ti: LiNbO3. Furthermore, waveguide gain is introduced through selective surface erbium (Er) doping which yields high quality loss-compensated or even amplifying waveguides without...

Song, Xiaomin

2012-02-14T23:59:59.000Z

203

Optimization of stomatal conductance for maximum carbon gain under dynamic soil moisture  

E-Print Network [OSTI]

Optimization of stomatal conductance for maximum carbon gain under dynamic soil moisture Stefano Accepted 26 September 2013 Available online 9 October 2013 Keywords: Optimization Photosynthesis Soil moisture Stomatal conductance Transpiration a b s t r a c t Optimization theories explain a variety

Katul, Gabriel

204

Enhancement of sensitivity gain and frequency tuning by coupling of active hair bundles  

E-Print Network [OSTI]

Enhancement of sensitivity gain and frequency tuning by coupling of active hair bundles Kai Dierkes. A candidate for this process is active hair bundle mechanics observed, for instance, for hair cells of the bullfrog's sacculus. Hair bundles in various inner ear organs are coupled by overlying membranes. Using

Jülicher, Frank

205

Women in STEM -- Why We Need All Hands on Deck  

ScienceCinema (OSTI)

Carter Wall developed an interest in science at an early age yet struggled to find examples of women scientists and engineers beyond historical figures, like Marie Curie. A lack of relatable role-models didn't stop Carter from pursuing an undergraduate education and career rooted in STEM -- shorthand for science, technology, engineering and mathematics fields. Now, she plays a key role at one of largest solar developers in the Northeast. This is the first in the Energy Department's #WomenInStem video series. At the Energy Department, we're committed to supporting a diverse talent pool of STEM innovators ready to address the challenges and opportunities of our growing clean energy economy

Wall; Carter

2014-06-04T23:59:59.000Z

206

Solar-powered carousel for hands-on teaching  

E-Print Network [OSTI]

This thesis is the design of a solar-powered carousel that informs the public about the setup and capabilities of solar-powered systems. It is designed as a mobile tool that can be moved among college campuses, businesses, ...

Shea, Erin C. (Erin Colleen)

2005-01-01T23:59:59.000Z

207

Women in STEM -- Why We Need All Hands on Deck  

SciTech Connect (OSTI)

Carter Wall developed an interest in science at an early age yet struggled to find examples of women scientists and engineers beyond historical figures, like Marie Curie. A lack of relatable role-models didn't stop Carter from pursuing an undergraduate education and career rooted in STEM -- shorthand for science, technology, engineering and mathematics fields. Now, she plays a key role at one of largest solar developers in the Northeast. This is the first in the Energy Department's #WomenInStem video series. At the Energy Department, we're committed to supporting a diverse talent pool of STEM innovators ready to address the challenges and opportunities of our growing clean energy economy

Wall; Carter

2014-01-11T23:59:59.000Z

208

Workshop Provides Hands-On Project Development Training for 26...  

Office of Environmental Management (EM)

power outages. Photo by John De La Rosa, NREL Workshop guest speaker Jana Ganion of Blue Lake Rancheria (shown here to the left sitting at a table with workshop participants)...

209

Hands-on environmental stewardship deepens Erica Garcia, civil engineer,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuided Self-Assembly of GoldHAWCHIGSSiteHamadaNERSC »NERSC

210

Hadoop Hands-On Exercises Lawrence Berkeley National Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky9, 2010 The meeting wasEngineering andHQHSIHYBRID4 Subject:

211

Hands-on Energy Adaptation Toolkit (HEAT) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany: EnergyPower Finance Jump to:Information of

212

Study Guides for Written and Hands-On Assessments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystalline Gallium Oxide Thin Films.Administration goStudiesA-30:Search

213

The contact heat conductance at diamond-OFHC copper interface with GaIn eutectic as a heat transfer medium  

SciTech Connect (OSTI)

Results of an experimental study of the contact heat conductance across a single diamond crystal interface with OFHC copper (Cu) are reported. Gallium-indium (GaIn) eutectic was used as an interstitial material. Contact conductance data are important in the design and the prediction of the performance of x-ray diamond monochromators under high-heat-load conditions. Two sets of experiments were carried out. In one, the copper surface in contact with diamond was polished and then electroless plated with 1 {mu}m of nickel, while in the other, the copper contact surface was left as machined. Measured average interface heat conductances are 44.7 {plus_minus}8 W/cm{sup 2}{minus}K for nonplated copper and 23.0 {plus_minus}3 W/cm{sup 2}{minus}K for nickel-plated copper. For reference, the thermal contact conductances at a copper-copper interface (without diamond) were also measured, and the results are reported. A typical diamond monochromator, 0.2 mm thick, will absorb about 44 W under a standard undulator beam at the Advanced Photon Source. The measured conductance for nickel-plated copper suggests that the temperature drop across the interface of diamond and nickel-plated copper, with a 20 mm{sup 2} contact area, will be about 10{degree}C. Therefore temperature rises are rather modest, and the accuracy of the measured contact conductances presented here are sufficient for design purposes.

Assoufid, L.; Khounsary, A.M.

1996-01-01T23:59:59.000Z

214

Contact heat conductance at a diamond-OFHC copper interface with GaIn eutectic as a heat transfer medium  

SciTech Connect (OSTI)

The results of an experimental study of the contact heat conductance across a single diamond crystal interface with OFHC copper (Cu) are reported. Gallium-indium (GaIn) eutectic was used as an interstitial material. Contact conductance data are important in the design and the prediction of the performance of x-ray optics under high-heat-load conditions. Two sets of experiments were carried out. In one, the copper surface in contact with diamond was polished and then electroless plated with 1 {mu}m of nickel, while in the other, the copper contact surface was left as machined. The measured average interface heat conductances are 44.7{plus_minus}8 W/cm{sup 2}-K for nonplated copper and 23.0{plus_minus}8 W/cm{sup 2}-K for nickel-plated copper. For reference, the thermal contact conductances at a copper-copper interface (without diamond) were also measured, and the results are reported. A typical diamond monochromator, 0.2 mm thick, will absorb about 44 W under a standard undulator beam at the Advanced Photon Source. The measured conductance for nickel-plated copper suggests that the temperature drop across the interface of diamond and nickel-plated copper, with a 20 mm {sup 2}contact area, will be about 10{degree}C. Therefore temperature rises are rather modest, and the accuracy of the measured contact conductances presented here are sufficient for design purposes. {copyright} {ital 1996 American Institute of Physics.}

Assoufid, L.; Khounsary, A. [Experimental Facilities Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)] [Experimental Facilities Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

1996-09-01T23:59:59.000Z

215

Electrical, thermal, and species transport properties of liquid eutectic Ga-In and Ga-In-Sn from first principles  

SciTech Connect (OSTI)

Using ab initio molecular dynamics, the atomic structure and transport properties of eutectic Ga-In and Ga-In-Sn are investigated. The Kubo-Greenwood (K-G) and the Ziman-Faber (Z-F) formulations and the Wiedemann-Franz (W-F) law are used for the electrical and electronic thermal conductivity. The species diffusivity and the viscosity are also predicted using the mean square displacement and the Stokes-Einstein (S-E) relation. Alloying Ga causes more disordered structure, i.e., broadening the atomic distance near the In and Sn atoms, which reduces the transport properties and the melting temperature. The K-G treatment shows excellent agreement with the experimental results while Z-F treatment formula slightly overestimates the electrical conductivity. The predicted thermal conductivity also shows good agreement with the experiments. The species diffusivity and the viscosity are slightly reduced by the alloying of Ga with In and Sn atoms. Good agreements are found with available experimental results and new predicted transport-property results are provided.

Yu, Seungho; Kaviany, Massoud, E-mail: kaviany@umich.edu [Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)] [Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2014-02-14T23:59:59.000Z

216

Reducing Thermal Losses and Gains With Buried and Encapsulated Ducts in Hot-Humid Climates  

SciTech Connect (OSTI)

The Consortium for Advanced Residential Buildings (CARB) monitored three houses in Jacksonville, FL, to investigate the effectiveness of encapsulated and encapsulated/buried ducts in reducing thermal losses and gains from ductwork in unconditioned attics. Burying ductwork beneath loose-fill insulation has been identified as an effective method of reducing thermal losses and gains from ductwork in dry climates, but it is not applicable in humid climates where condensation may occur on the outside of the duct jacket. By encapsulating the ductwork in closed cell polyurethane foam (ccSPF) before burial beneath loose-fill mineral fiber insulation, the condensation potential may be reduced while increasing the R-value of the ductwork.

Shapiro, C.; Magee, A.; Zoeller, W.

2013-02-01T23:59:59.000Z

217

Gain, directionality and noise in microwave SQUID amplifiers: Input-output approach  

E-Print Network [OSTI]

We present a new theoretical framework to analyze microwave amplifiers based on the dc SQUID. Our analysis applies input-output theory generalized for Josephson junction devices biased in the running state. Using this approach we express the high frequency dynamics of the SQUID as a scattering between the participating modes. This enables us to elucidate the inherently nonreciprocal nature of gain as a function of bias current and input frequency. This method can, in principle, accommodate an arbitrary number of Josephson harmonics generated in the running state of the junction. We report detailed calculations taking into account the first few harmonics that provide simple semi-quantitative results showing a degradation of gain, directionality and noise of the device as a function of increasing signal frequency. We also discuss the fundamental limits on device performance and applications of this formalism to real devices.

Archana Kamal; John Clarke; Michel Devoret

2012-06-20T23:59:59.000Z

218

Quantum noise of white light cavity using double-pumped gain medium  

E-Print Network [OSTI]

Laser interferometric gravitational-wave detectors implement Fabry-Perot cavities to increase their peak sensitivity. However, this is at cost of reducing their detection bandwidth, which origins from the propagation phase delay of the light. The "white-light-cavity" idea, first proposed by Wicht et al. [Optics Communications 134, 431 (1997)], is to circumvent this limitation by introducing anomalous dispersion, using double-pumped gain medium, to compensate for such phase delay. In this article, starting from the Hamiltonian of atom-light interaction, we apply the input-output formalism to evaluate the quantum noise of the system. We find that apart from the additional noise associated with the parametric amplification process noticed by others, the stability condition for the entire system poses an additional constraint. Through surveying the parameter regimes where the gain medium remains stable (not lasing) and stationary, we find that there is no net enhancement of the shot-noise limited sensitivity. The...

Ma, Yiqiu; Zhao, Chunnong; Chen, Yanbei

2015-01-01T23:59:59.000Z

219

Robust random number generation using steady-state emission of gain-switched laser diodes  

SciTech Connect (OSTI)

We demonstrate robust, high-speed random number generation using interference of the steady-state emission of guaranteed random phases, obtained through gain-switching a semiconductor laser diode. Steady-state emission tolerates large temporal pulse misalignments and therefore significantly improves the interference quality. Using an 8-bit digitizer followed by a finite-impulse-response unbiasing algorithm, we achieve random number generation rates of 8 and 20?Gb/s, for laser repetition rates of 1 and 2.5?GHz, respectively, with a ±20% tolerance in the interferometer differential delay. We also report a generation rate of 80?Gb/s using partially phase-correlated short pulses. In relation to the field of quantum key distribution, our results confirm the gain-switched laser diode as a suitable light source, capable of providing phase-randomized coherent pulses at a clock rate of up to 2.5?GHz.

Yuan, Z. L., E-mail: zhiliang.yuan@crl.toshiba.co.uk; Lucamarini, M.; Dynes, J. F.; Fröhlich, B.; Plews, A.; Shields, A. J. [Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Cambridge Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom)

2014-06-30T23:59:59.000Z

220

High gain, Fast Scan, Broad Spectrum Parallel Beam Wavelength Dispersive X-ray Spectrometer for SEM  

SciTech Connect (OSTI)

During contract # DE-FG02-ER83545, Parallax Research, Inc. developed a High gain, Fast Scan Broad Spectrum Parallel beam Wavelength Dispersive X-ray Spectrometer for use on Scanning Electron Microscopes (SEM). This new spectrometer allows very fast high resolution elemental analysis of samples in an electron microscope. By comparison to previous WDS spectrometers, it can change from one energy position to another very quickly and has an extended range compared to some similar products.

OHara, David

2009-05-08T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

High Gain, Fast Scan, Broad Spectrum, Parallel Beam Wavelength Dispersive X-ray Spectrometer for SEM  

SciTech Connect (OSTI)

Parallax Research, Inc. proposes to produce a new type of x-ray spectrometer for use with Scanning Electron Microscopy (SEM) that would have the energy resolution of WDS and the ease of use of EDS with sufficient gain for lower energies that it can be used at low beam currents as is EDS. Parallax proposes to do this by development of new multiple reflection x-ray collimation optics, new diffractor technology, new detector technology and new scan algorithms.

David OHara; Dr. Eric Lochmer

2003-09-12T23:59:59.000Z

222

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

SciTech Connect (OSTI)

Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective 'cool colored' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland U.S. latitudes, this metric RE891BN can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {le} 5:12 [23{sup o}]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool-roof net energy savings by as much as 23%. We define clear-sky air mass one global horizontal ('AM1GH') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer.

Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul

2010-05-14T23:59:59.000Z

223

Gain scheduling adaptive control strategies for HVDC systems to accommodate large disturbances  

SciTech Connect (OSTI)

Techniques have been developed to permit the response of the controls for dc transmission systems to adapt to large system changes. A gain scheduling approach tunes the control as an on-line function of the effective short-circuit ratio and contingency indicators. The method has been tested by digital simulation, based on EMTP, of a back-to-back dc system. It has been found to be robust and control performance has been enhanced.

Reeve, J.; Sultan, M. (Univ. of Waterloo, Ontario (Canada))

1994-02-01T23:59:59.000Z

224

Prediction of internal temperature swings in direct-gain passive-solar buildings  

SciTech Connect (OSTI)

The diurnal heat capacity method is presented for estimating inside-temperature swings attributable to direct winter solar gain. The procedures are simplified to be suitable for hand analysis, aided by tables of diurnal heat capacity for various materials. The method has been spot checked against computer simulation and has been used successfully by a group of 20 builders in New Mexico to analyze whether temperature swings would be excessive in their designs.

Balcomb, J.D.

1983-01-01T23:59:59.000Z

225

Investigation of the electron trajectories and gain regimes of the whistler pumped free-electron laser  

SciTech Connect (OSTI)

A free-electron laser (FEL) scheme, which employs the whistler wave as a slow electromagnetic wave wiggler, was studied theoretically. Subjected to the transverse fields of whistler wave wiggler, the beam electrons are the source of the energy needed to produce electromagnetic radiation. The strength and the period of the wiggler field depend on the parameters of the magnetoplasma medium. This configuration has a higher tunability by controlling the plasma density, on top of the {gamma}-tunability of the conventional FELs. The theory of linear gain and electron trajectories was presented and four groups (I, II, III, and IV) of electron orbits were found in the presence of an axial guide magnetic field. Using perturbation analysis, it is found that these groups of orbits were stable except small regions of group I and IV orbits. The function {Phi} which determines the rate of change of axial velocity with beam energy was also derived. In the case in which {Phi}<0 represents a negative-mass regime in which the axial velocity accelerates as the electrons lose energy. Numerical solutions showed that by increasing the cyclotron frequency, the gain for group I and III orbits increased, while a gain decrement was obtained for group II and IV orbits.

Jafarinia, F.; Jafari, S. [Department of Physics, University of Guilan, Rasht 41335-1914 (Iran, Islamic Republic of); Mehdian, H. [Department of Physics and Institute for Plasma Research, Tarbiat Moallem University, Tehran 15614 (Iran, Islamic Republic of)

2013-04-15T23:59:59.000Z

226

HELPING BEHAVIOUR DURING COOPERATIVE LEARNING AND LEARNING GAINS: THE ROLE OF THE TEACHER AND OF PUPILS' PRIOR KNOWLEDGE AND ETHNIC  

E-Print Network [OSTI]

1 HELPING BEHAVIOUR DURING COOPERATIVE LEARNING AND LEARNING GAINS: THE ROLE OF THE TEACHER, J. W. (2008). Helping behaviour during cooperative learning and learning gains: The role-159" #12;2 Running head: Helping behaviour during cooperative learning Helping behaviour during cooperative

Paris-Sud XI, Université de

227

Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain applications  

E-Print Network [OSTI]

Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain: Raman scattering; Neutron scattering; Raman gain; Boson peak We present measurements of the vibrational, extracted from specific-heat or neutron scattering measurements [7,8]. Only very recently two of the present

Schirmacher, Walter

228

Abstract--A simple method is presented to reduce the number of scheduling parameters for gain-scheduled  

E-Print Network [OSTI]

to a zero- parameter or LTI controller design problem in the dimensionless domain. The dimensionless gain-scheduling. Index Terms--Gain scheduling, gantry control, pi theorem, dimensionless parameters, nondimensional representation I. INTRODUCTION AIN scheduling is a popular method to control systems whose linearized model

Brennan, Sean

229

Double beta decay experiments  

E-Print Network [OSTI]

The present status of double beta decay experiments are reviewed. The results of the most sensitive experiments, NEMO-3 and CUORICINO, are discussed. Proposals for future double beta decay experiments are considered. In these experiments sensitivity for the effective neutrino mass will be on the level of (0.1-0.01) eV.

A. S. Barabash

2006-02-22T23:59:59.000Z

230

AGR-1 Irradiation Experiment Test Plan  

SciTech Connect (OSTI)

This document presents the current state of planning for the AGR-1 irradiation experiment, the first of eight planned irradiations for the Advanced Gas Reactor (AGR) Fuel Development and Qualification Program. The objectives of the AGR-1 experiment are: 1. To gain experience with multi-capsule test train design, fabrication, and operation with the intent to reduce the probability of capsule or test train failure in subsequent irradiation tests. 2. To irradiate fuel produced in conjunction with the AGR fuel process development effort. 3. To provide data that will support the development of an understanding of the relationship between fuel fabrication processes, fuel product properties, and irradiation performance. In order to achieve the test objectives, the AGR-1 experiment will be irradiated in the B-10 position of the Advanced Test Reactor (ATR) at the Idaho National Laboratory (INL). The test will contain six independently controlled and monitored capsules. Each capsule will contain a single type, or variant, of the AGR coated fuel. The irradiation is planned for about 700 effective full power days (approximately 2.4 calendar years) with a time-averaged, volume-average temperature of approximately 1050 °C. Average fuel burnup, for the entire test, will be greater than 17.7 % FIMA, and the fuel will experience fast neutron fluences between 2.4 and 4.5 x 1025 n/m2 (E>0.18 MeV).

John T. Maki

2009-10-01T23:59:59.000Z

231

PXIE: Project X Injector Experiment  

SciTech Connect (OSTI)

A multi-MW proton facility, Project X, has been proposed and is currently under development at Fermilab. We are planning a program of research and development aimed at integrated systems testing of critical components comprising the front end of the Project X. This program is being undertaken as a key component of the larger Project X R&D program. The successful completion of this program will validate the concept for the Project X front end, thereby minimizing a primary technical risk element within Project X. Integrated systems testing, known as the Project X Injector Experiment (PXIE), will be accomplished with a new test facility under construction at Fermilab and will be completed over the period FY12-16. PXIE will include an H{sup -} ion source, a CW 2.1-MeV RFQ and two superconductive RF (SRF) cryomodules providing up to 25 MeV energy gain at an average beam current of 1 mA (upgradable to 2 mA). Successful systems testing will also demonstrate the viability of novel front end technologies that are expected find applications beyond Project X.

Ostroumov, P.N.; /Argonne; Holmes, S.D.; Kephart, R.D.; Kerby, J.S.; Lebedev, V.A.; Mishra, C.S.; Nagaitsev, S.; Shemyakin, A.V.; Solyak, N.; Stanek, R.P.; /Fermilab; Li, D.; /LBL, Berkeley

2012-05-01T23:59:59.000Z

232

Second quarter trims earnings gain of OGJ group of U. S. oil companies  

SciTech Connect (OSTI)

This paper reports that first half of 1991 profits for the Oil and Gas Journal group of 22 large U.S. oil companies totaled $10,553 billion, down a scant 0.1% from the same period the year before. However, second quarter profits were down sharply, dipping to $3.656 billion or 27.4% below the second quarter of 1990. This is in sharp contrast with first quarter profits, which totaled $6.897 billion and were up 24.8% from the same period of 1990. First half individuals results were widely diverse, with seven companies showing profit improvements from last year and 15 companies a decline. Only one, Murphy Oil Co., posted a loss in the first half. Six companies showed profit gains of more than 20% and 11 posted declines greater than 20%. In the second quarter 16 of the group had lower earnings than they booked in the same period of 1990. Restructuring charges and gains, along with provisions for future environmental costs, continued to have a great deal of influence over year to year changes in profits. Chemical earnings were down for the 6 months and in the second quarter for most companies. U.S. refining and marketing earnings were mixed but generally lower for both periods. Due to an economic recession product demand was down in the first half of this year. Non-U.S. refining and marketing profits were up for the first half, but the gain stemmed from improved margins in the first quarter.

Beck, R.J.; Biggs, J.B.

1991-09-02T23:59:59.000Z

233

Gain broadening mechanism in various GaAlAs laser structures  

SciTech Connect (OSTI)

Coupling of an external grating to a GaAlAs laser results in a strong enhancement of the selected mode and a reduction of the nonselected modes. The spectral form of this reduction is measured with a new sensitive experimental arrangement for three types of laser structures: proton bombarded stripe geometry, V-groove and CSP lasers. This spectral form is determined by the gain curve of the laser only and is independent on the position of the selected mode, i.e., no spectral hole burning is observed at room temperature.

Ruehle, W.; Brosson, P.

1980-11-01T23:59:59.000Z

234

High-gain dc SQUID magnetometers with NbN nanobridges  

SciTech Connect (OSTI)

This paper reports on high-gain dc SQUIDs using NbN nanobridges fabricated for magnetometers with high sensitivity, and their device parameters and intrinsic energy sensitivity have been evaluated. The slit inductance of the square washer SQUID was reduced by using the co-planar edge structure of the low inductance. The junction capacitance was typically 15 {approximately} 40 ft. The maximum voltage modualtion was about 110 {mu}V for the NbN nanobridge SQUID with an inductance of 0.18nH.

Irie, A.; Hamasaki, K.; Yamashita, T. (Dept. of Electronics, Nagaoka Univ. of Technology, Kamitomioka-Machi 1603-1, Nagoka-shi, Niigata 940-21 (JP)); Matsui, T.; Komiyama, B. (Communication Research Lab., Ministry of Posts and Telecommunication, Koganei, Tokyo 184 (JP))

1991-03-01T23:59:59.000Z

235

Method and system for modulation of gain suppression in high average power laser systems  

DOE Patents [OSTI]

A high average power laser system with modulated gain suppression includes an input aperture associated with a first laser beam extraction path and an output aperture associated with the first laser beam extraction path. The system also includes a pinhole creation laser having an optical output directed along a pinhole creation path and an absorbing material positioned along both the first laser beam extraction path and the pinhole creation path. The system further includes a mechanism operable to translate the absorbing material in a direction crossing the first laser beam extraction laser path and a controller operable to modulate the second laser beam.

Bayramian, Andrew James (Manteca, CA)

2012-07-31T23:59:59.000Z

236

Frequency dependence of mass flow gain factor and cavitation compliance of cavitating inducers  

SciTech Connect (OSTI)

Unsteady cavitation characteristics are analyzed based on a closed cavity model in which the length of the cavity is allowed to oscillate. It is shown that the present model blends smoothly into quasisteady calculations in the low frequency limit, unlike fixed cavity length models. Effects of incidence angle and cavitation number on cavitation compliance and mass flow gain factor are shown as functions of reduce frequency. The cavity volume is evaluated by three methods and the results were used to confirm the accuracy and adequacy of the numerical calculation. By comparison with experimental data on inducers, it was shown that the present model can simulate the characteristics of unsteady cavitation qualitatively.

Otsuka, S.; Tsujimoto, Yoshinobu [Osaka Univ. (Japan); Kamijo, Kenjiro [National Aerospace Lab., Kakuda, Miyagi (Japan). Kakuda Research Center; Furuya, O. [AMP Technologies, Osaka (Japan)

1994-12-31T23:59:59.000Z

237

High-Gain Harmonic Generation Free-Electron Laser at Saturation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinement plasmas in thein the Assembly ofNa-ionInnovationGain Harmonic

238

New insight on HIV life cycle gained through creative use of...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

However, this RRE RNA domain has not been successfully crystallized and it has 230 nucleotides, which is too large for NMR characterization. The SAXS experiments were performed...

239

Radiation-induced gain degradation in lateral PNP BJTs with lightly and heavily doped emitters  

SciTech Connect (OSTI)

Ionizing radiation may cause failures in ICs due to gain degradation of individual devices. The base current of irradiated bipolar devices increases with total dose, while the collector current remains relatively constant. This results in a decrease in the current gain. Lateral PNP (LPNP) transistors typically exhibit more degradation than vertical PNP devices at the same total dose, and have been blamed as the cause of early IC failures at low dose rates. It is important to understand the differences in total-dose response between devices with heavily- and lightly-doped emitters in order to compare different technologies and evaluate the applicability of proposed low-dose-rate hardness-assurance methods. This paper addresses these differences by comparing two different LPNP devices from the same process: one with a heavily-doped emitter and one with a lightly-doped emitter. Experimental results demonstrate that the lightly-doped devices are more sensitive to ionizing radiation and simulations illustrate that increased recombination on the emitter side of the junction is responsible for the higher sensitivity.

Wu, A. [Univ. of Arizona, Tucson, AZ (United States); Schrimpf, R.D. [Vanderbilt Univ., Nashville, TN (United States); Pease, R.L. [RLP Research, Inc., Albuquerque, NM (United States); Fleetwood, D.M. [Sandia National Labs., Albuquerque, NM (United States); Kosier, S.L. [VTC Inc., Bloomington, MN (United States)

1997-06-01T23:59:59.000Z

240

Double beta decay experiments  

E-Print Network [OSTI]

The present status of double beta decay experiments is reviewed. The results of the most sensitive experiments are discussed. Proposals for future double beta decay experiments with a sensitivity to the $$ at the level of (0.01--0.1) eV are considered.

A. S. Barabash

2011-07-28T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

Gains and losses in the eyes of the beholder: a comparative study of foreign policy decision making under risk  

E-Print Network [OSTI]

Prospect theory is a descriptive model of individual decision-making under risk (Kahneman and Tversky 1979). The central tenet of prospect theory posits that the risk orientation of decision-makers is affected by the gains vs. losses domains...

Yang, Yi

2006-04-12T23:59:59.000Z

242

Emotional intelligence and manipulation: Are those scoring higher on EI measures more likely to negatively manipulate others' for personal gains  

E-Print Network [OSTI]

The association between emotional intelligence (EI) and manipulation was examined in this study. The possibility that individuals who score higher on EI would be more likely to negatively manipulate others for personal gain was the main hypothesis...

Carter, Sophie

2013-01-01T23:59:59.000Z

243

Structure of the eastern Red Rocks and Wind Ridge thrust faults, Wyoming: how a thrust fault gains displacement along strike  

E-Print Network [OSTI]

STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1983 Major Subject: Geology STRUCTURE OF THE EASTERN RED ROCKS AND WIND RIDGE THRUST FAULTS, WYOMING: HOW A THRUST FAULT GAINS DISPLACEMENT ALONG STRIKE A Thesis by BRENT STANLEY HUNTSMAN...

Huntsman, Brent Stanley

1983-01-01T23:59:59.000Z

244

Boonea (= Odostomia) impressa (Say) (Gastropoda: Pyramidellidae): its life history and impact on shell weight gain in Crassostrea virginica  

E-Print Network [OSTI]

Boonea (= Odostomia) impressa (SAY) (GASTROPODA: PYRAMIDELLIDAE): ITS LIFE HISTORY AND IMPACT ON SHELL WEIGHT GAIN IN Crassostrea virginica A Thesis by MARIE ELINOR WHITE Submitted to the Graduate College of Texas Agdi University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1983 Major Subject: Oceanography Boonea (= Odostomia) impressa (SAY) (GASTROPODA: PYRAMIDELLIDAE): ITS LIFE HISTORY AND IMPACT ON SHELL WEIGHT GAIN IN Crassostrea virginica A...

White, Marie Elinor

1983-01-01T23:59:59.000Z

245

Many-body effects on optical gain in GaAsPN/GaPN quantum well lasers for silicon integration  

SciTech Connect (OSTI)

Many-body effects on the optical gain in GaAsPN/GaP QW structures were investigated by using the multiband effective-mass theory and the non-Markovian gain model with many-body effects. The free-carrier model shows that the optical gain peak slightly increases with increasing N composition. In addition, the QW structure with a larger As composition shows a larger optical gain than that with a smaller As composition. On the other hand, in the case of the many-body model, the optical gain peak decreases with increasing N composition. Also, the QW structure with a smaller As composition is observed to have a larger optical gain than that with a larger As composition. This can be explained by the fact that the QW structure with a smaller As or N composition shows a larger Coulomb enhancement effect than that with a larger As or N composition. This means that it is important to consider the many-body effect in obtaining guidelines for device design issues.

Park, Seoung-Hwan, E-mail: shpark@cu.ac.kr [Department of Electronics Engineering, Catholic University of Daegu, Hayang, Kyeongbuk 712-702 (Korea, Republic of)

2014-02-14T23:59:59.000Z

246

Hodges residence: performance of a direct gain passive solar home in Iowa  

SciTech Connect (OSTI)

Results are presented for the performance of the Hodges Residence, a 2200-square-foot earth-sheltered direct gain passive solar home in Ames, Iowa, during the 1979-80 heating season, its first occupied season. No night insulation was used on its 500 square feet of double-pane glass. Total auxiliary heat required was 43 GJ (41 MBTU) gross and 26 GJ (25 MBTU) net, amounting, respectively, to 60 and 36 kJ/C/sup 0/-day-m/sup 2/ (2.9 and 1.8 BTU/F/sup 0/-day-ft/sup 2/). The heating season was unusually cloudy and included the cloudiest January in the 21 years of Ames insolation measurements. Results are also presented for the performance of the hollow-core floor which serves as the main storage mass and for the comfort range in the house.

Hodges, L.

1980-01-01T23:59:59.000Z

247

Using Numerical Simulations to Gain Insight into the Structure of Superbubbles  

E-Print Network [OSTI]

Recent high resolution observations of Galactic superbubbles have motivated us to re-examine several classes of superbubble models. We compare three classes of hydrodynamic models (the Kompaneets approximation, the thin shell model, and numerical simulations) in order to understand the structure of superbubbles and to gain insight into observations. In particular, we apply models to the W4 superbubble, which has been observed in the Pilot project of the arcminute resolution Canadian Galactic Plane Survey (Normandeau et al. 1996). Magnetohydrodynamic simulations are also performed and point the way to a fuller understanding of the W4 superbubble. We suggest that the highly collimated bubble and apparent lack of a Rayleigh-Taylor instability in the superbubble shell can be explained by the presence of a magnetic field.

Philip T. Komljenovic; Shantanu Basu; Doug Johnstone

1999-01-21T23:59:59.000Z

248

Method for increasing the rate of compressive strength gain in hardenable mixtures containing fly ash  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention provides a method for increasing the rate of strength gain of a hardenable mixture containing fly ash by exposing the fly ash to an aqueous slurry of calcium oxide (lime) prior to its incorporation into the hardenable mixture. The invention further relates to such hardenable mixtures, e.g., concrete and mortar, that contain fly ash pre-reacted with calcium oxide. In particular, the fly ash is added to a slurry of calcium oxide in water, prior to incorporating the fly ash in a hardenable mixture. The hardenable mixture may be concrete or mortar. In a specific embodiment, mortar containing fly ash treated by exposure to an aqueous lime slurry are prepared and tested for compressive strength at early time points. 2 figs.

Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

1997-10-28T23:59:59.000Z

249

Antenna Gain and Link Budget for Waves Carrying Orbital Angular Momentum (OAM)  

E-Print Network [OSTI]

This paper addresses the RF link budget of a communication system using unusual waves carrying an orbital angular momentum (OAM) in order to clearly analyse the fundamental changes for telecommunication applications. The study is based on a typical configuration using circular array antennas to transmit and receive OAM waves. For any value of the OAM mode order, an original asymptotic formulation of the link budget is proposed in which equivalent antenna gains and free-space losses appear. The formulations are then validated with the results of a commercial electromagnetic simulation software. By this way, we also show how our formula can help to design a system capable of superimposing several channels on the same bandwidth and the same polarisation, based on the orthogonality of the OAM. Additional losses due to the use of this degree of freedom are notably clearly calculated to quantify the benefit and drawback according to the case.

Nguyen, Duy Kevin; Sokoloff, Jérôme; Chabory, Alexandre; Palacin, Baptiste; Capet, Nicolas

2015-01-01T23:59:59.000Z

250

Method for increasing the rate of compressive strength gain in hardenable mixtures containing fly ash  

DOE Patents [OSTI]

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention provides a method for increasing the rate of strength gain of a hardenable mixture containing fly ash by exposing the fly ash to an aqueous slurry of calcium oxide (lime) prior to its incorporation into the hardenable mixture. The invention further relates to such hardenable mixtures, e.g., concrete and mortar, that contain fly ash pre-reacted with calcium oxide. In particular, the fly ash is added to a slurry of calcium oxide in water, prior to incorporating the fly ash in a hardenable mixture. The hardenable mixture may be concrete or mortar. In a specific embodiment, mortar containing fly ash treated by exposure to an aqueous lime slurry are prepared and tested for compressive strength at early time points.

Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

1997-01-01T23:59:59.000Z

251

Diurnal heat storage in direct-gain passive-solar buildings  

SciTech Connect (OSTI)

This paper presents a simplified method for predicting temperature swings in direct-gain buildings. It is called the DHC method due to the use of a diurnal heat capacity (DHC). Diurnal heat capacity is a measure of the effective amount of heat stored during a sunny day and then released at night - the typical 24-hour diurnal cycle. This enables prediction of the maximum temperature swings experienced in the building and can be calculated using a single 24-hour harmonic. The advantage is that closed-form analytic solutions can be obtained for a variety of simple and layered-wall configurations. Higher harmonic components are accounted for by a correction factor. The method is suitable for us by hand or on a programmable calculator.

Balcomb, J.D.; Neeper, D.A.

1983-01-01T23:59:59.000Z

252

Models of signalling networks - what cell biologists can gain from them and give to them  

E-Print Network [OSTI]

Computational models of cell signalling are perceived by many biologists to be prohibitively complicated. Why do math when you can simply do another experiment? Here, we explain how conceptual models, which have been ...

Janes, Kevin A.

253

Irish Potato Fertilizer Experiments.  

E-Print Network [OSTI]

S AGRICULTURAL EXPERIMENT STATIONS. BULLETIN NO 101 January, 1908. ish Potato Fertilizer Experiments - Postoffice, COLLEGE STATION, BRAZOS COUNTY, TEXAS. TEXAS AGRICULTURAL EXPERIMENT STATIONS OFFICERS. GOVERNING BOARD. (Board of Directors... was sc Be Irish Potato Fl nents W. S. Hotchkiss and E. J. Kyle. e fertilizer work with the Irish potato at Troupe was first planned fall of 1902. The results which were gotten upon harvesting the the spring of 1903 were so opposed, especially...

Hotchkiss, W.S.; Kyle, E. J. (Edwin Jackson)

1908-01-01T23:59:59.000Z

254

Double Beta Decay Experiments  

SciTech Connect (OSTI)

At present, neutrinoless double beta decay is perhaps the only experiment that can tell us whether the neutrino is a Dirac or a Majorana particle. Given the significance of the 0{nu}{beta}{beta}, there is a widespread interest for these rare event studies employing a variety of novel techniques. This paper describes the current status of DBD experiments. The Indian effort for an underground NDBD experiment at the upcoming INO laboratory is also presented.

Nanal, Vandana [Dept. of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400 005 (India)

2011-11-23T23:59:59.000Z

255

Conference: Synergy Between Experiment  

E-Print Network [OSTI]

Kaxiras (Harvard) Synopsis ­ Society's ceaseless demand for clean, renewable energy resources on rapidly developing areas of nanoscale computation, will hold a conference on energy research, experimentAn NNIN/C Conference: Synergy Between Experiment and Computation in Energy ­ Looking to 2030. Yu

Heller, Eric

256

FUSION IGNITION RESEARCH EXPERIMENT SYSTEM INTEGRATION *  

E-Print Network [OSTI]

in an arrangement that allows remote maintenance of in-vessel components and hands-on maintenance by integrating the two components into a single module. This was done to increase the baffle heat. An in­vessel remote maintenance module is also shown attached to one port. Figure 2 highlights

257

The goal of the DC Immersion Experience is to provide a program for 18 Syracuse University sophomores interested in gaining an understanding and foundation of the  

E-Print Network [OSTI]

: __________________________________________________________ Phone: (____)-______-______ Cell Phone: (____)-_____-______ E-mail address: __________________________________________________________ Daytime Phone: (____)-_____-______ Evening Phone: (____)-_____-______ Cell Phone Student Center Syracuse, New York 13244 Phone: (315) 443-9092 E-mail: scfeeney@syr.edu Application

Raina, Ramesh

258

Hope Clinic Internship Application This internship is a great opportunity for a student who is looking to gain real-world experience for 1-  

E-Print Network [OSTI]

Hope Clinic Internship Application This internship is a great opportunity for a student who be available either Tuesdays and/or Wednesdays. It is a semester-long internship and the start/end date.utahhopeclinic.org. Please direct questions about the internship to Neela Pack at neelapack@gmail.com or 801-860-3988. Full

Tipple, Brett

259

Numerical investigation into the injection-locking phenomena of gain switched lasers for optical frequency comb generation  

E-Print Network [OSTI]

We present detailed numerical simulations of the laser dynamics that describe optical frequency comb formation by injection-locking a gain-switched laser. The typical rate equations for semiconductor lasers including stochastic carrier recombination and spontaneous emission suffice to show the injection-locking behavior of gain switched lasers, and we show how the optical frequency comb evolves starting from the free-running state, right through the final injection- locked state. Unlike the locking of continuous wave lasers, we show that the locking range for gain switched lasers is considerably greater because injection locking can be achieved by injecting at frequencies close to one of the comb lines. The quality of the comb lines are formally assessed by calculating the FM-noise spectral density and we show that under injection-locking conditions the FM-noise spectral density of the comb lines tend to that of the maser laser.

Duill, Sean P O; Zhou, Rui; Barry, Liam P

2015-01-01T23:59:59.000Z

260

Lossless anomalous dispersion and an inversionless gain doublet via dressed interacting ground states  

SciTech Connect (OSTI)

Transparent media exhibiting anomalous dispersion have been of considerable interest since Wang, Kuzmich, and Dogariu [Nature 406, 277 (2000)] first observed light propagate with superluminal and negative group velocities without absorption. Here, we propose an atomic model exhibiting these properties, based on a generalization of amplification without inversion in a five-level dressed interacting ground-state system. The system consists of a {Lambda} atom prepared as in standard electromagnetically induced transparency (EIT), with two additional metastable ground states coupled to the {Lambda} atom ground states by two rf-microwave fields. We consider two configurations by which population is incoherently pumped into the ground states of the atom. Under appropriate circumstances, we predict a pair of new gain lines with tunable width, separation, and height. Between these lines, absorption vanishes but dispersion is large and anomalous. The system described here is a significant improvement over other proposals in the anomalous dispersion literature in that it permits additional coherent control over the spectral properties of the anomalous region, including a possible 10{sup 4}-fold increase over the group delay observed by Wang, Kuzmich, and Dogariu.

Weatherall, James Owen [Department of Physics and Engineering Physics, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030 (United States); Department of Mathematical Sciences, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030 (United States); Department of Logic and Philosophy of Science, University of California Irvine, 3151 Social Science Plaza A, Irvine, California 92697 (United States); Search, Christopher P. [Department of Physics and Engineering Physics, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030 (United States)

2010-02-15T23:59:59.000Z

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


261

Automatic Gain Control in Mass Spectrometry using a Jet Disrupter Electrode in an Electrodynamic Ion Funnel  

SciTech Connect (OSTI)

We report on the use of a jet disrupter electrode in an electrodynamic ion funnel as an electronic valve to regulate the intensity of the ion beam transmitted through the interface of a mass spectrometer in order to perform automatic gain control (AGC). The ion flux is determined by either directly detecting the ion current on the conductance limiting orifice of the ion funnel or using a short mass spectrometry acquisition. Based upon the ion flux intensity, the voltage of the jet disrupter is adjusted to alter the transmission efficiency of the ion funnel to provide a desired ion population to the mass analyzer. Ion beam regulation by an ion funnel is shown to provide an unbiased control to within a few percent of a targeted ion intensity or abundance. The utility of ion funnel AGC was evaluated using a protein tryptic digest analyzed with liquid chromatography Fourier transform ion cyclotron resonance (LC-FTICR) mass spectrometry. The ion population in the ICR cell was accurately controlled to a variety of different levels, which improved data quality and provided better mass measurement accuracy.

Page, Jason S.; Bogdanov, Bogdan; Vilkov, Andrey N.; Prior, David C.; Buschbach, Michael A.; Tang, Keqi; Smith, Richard D.

2005-02-01T23:59:59.000Z

262

Gain and tuning characteristics of mid-infrared InSb quantum dot diode lasers  

SciTech Connect (OSTI)

There have been relatively few reports of lasing from InSb quantum dots (QDs). In this work, type II InSb/InAs QD laser diodes emitting in the mid-infrared at 3.1??m have been demonstrated and characterized. The gain was determined to be 2.9?cm{sup ?1} per QD layer, and the waveguide loss was ?15?cm{sup ?1} at 4?K. Spontaneous emission measurements below threshold revealed a blue shift of the peak wavelength with increasing current, indicating filling of ground state heavy hole levels in the QDs. The characteristic temperature, T{sub 0}?=?101?K below 50?K, but decreased to 48?K at higher temperatures. The emission wavelength of these lasers showed first a blue shift followed by a red shift with increasing temperature. A hybrid structure was used to fabricate the laser by combining a liquid phase epitaxy grown p-InAs{sub 0.61}Sb{sub 0.13}P{sub 0.26} lower cladding layer and an upper n{sup +} InAs plasmon cladding layer which resulted in a maximum operating temperature (T{sub max}) of 120?K in pulsed mode, which is the highest reported to date.

Lu, Q.; Zhuang, Q.; Hayton, J.; Yin, M.; Krier, A. [Physics Department, Lancaster University, Lancaster LA1 4YB (United Kingdom)

2014-07-21T23:59:59.000Z

263

Radiochemical solar neutrino experiments  

E-Print Network [OSTI]

Radiochemical experiments have been crucial to solar neutrino research. Even today, they provide the only direct measurement of the rate of the proton-proton fusion reaction, p + p --> d + e^+ + nu_e, which generates most of the Sun's energy. We first give a little history of radiochemical solar neutrino experiments with emphasis on the gallium experiment SAGE -- the only currently operating detector of this type. The combined result of all data from the Ga experiments is a capture rate of 67.6 +/- 3.7 SNU. For comparison to theory, we use the calculated flux at the Sun from a standard solar model, take into account neutrino propagation from the Sun to the Earth and the results of neutrino source experiments with Ga, and obtain 67.3 ^{+3.9}_{-3.5} SNU. Using the data from all solar neutrino experiments we calculate an electron neutrino pp flux at the earth of (3.41 ^{+0.76}_{-0.77}) x 10^{10}/(cm^2-s), which agrees well with the prediction from a detailed solar model of (3.30 ^{+0.13} _{-0.14}) x 10^{10}/(cm^2-s). Four tests of the Ga experiments have been carried out with very intense reactor-produced neutrino sources and the ratio of observed to calculated rates is 0.88 +/- 0.05. One explanation for this unexpectedly low result is that the cross section for neutrino capture by the two lowest-lying excited states in 71Ge has been overestimated. We end with consideration of possible time variation in the Ga experiments and an enumeration of other possible radiochemical experiments that might have been.

V. N. Gavrin; B. T. Cleveland

2007-03-06T23:59:59.000Z

264

Application Developer HTH Worldwide is a leader in helping world travelers gain access to quality  

E-Print Network [OSTI]

a fulltime opening for an experienced Database Programmer/Web Developer. The individual will be responsible for the design, development, implementation, and maintenance of Web database applications on Windows Servers & Qualifications: The position requires 23 years experience in web and database programming. The following

Plotkin, Joshua B.

265

The Neutron EDM Experiment  

E-Print Network [OSTI]

The neutron EDM experiment has played an important part over many decades in shaping and constraining numerous models of CP violation. This review article discusses some of the techniques used to calculate EDMs under various theoretical scenarios, and highlights some of the implications of EDM limits upon such models. A pedagogical introduction is given to the experimental techniques employed in the recently completed ILL experiment, including a brief discussion of the dominant systematic uncertainties. A new and much more sensitive version of the experiment, which is currently under development, is also outlined.

P. G. Harris

2007-09-19T23:59:59.000Z

266

CSI: Dognapping workshop : an outreach experiment designed to produce students that are hooked on science.  

SciTech Connect (OSTI)

The CSI: Dognapping Workshop is a culmination of the more than 65 Sandian staff and intern volunteers dedication to exciting and encouraging the next generation of scientific leaders. This 2 hour workshop used a 'theatrical play' and 'hands on' activities that was fun, exciting and challenging for 3rd-5th graders while meeting science curriculum standards. In addition, new pedagogical methods were developed in order to introduce nanotechnology to the public. Survey analysis indicated that the workshop had an overall improvement and positive impact on helping the students to understand concepts from materials science and chemistry as well as increased our interaction with the K-5 community. Anecdotal analyses showed that this simple exercise will have far reaching impact with the results necessary to maintain the United States as the scientific leader in the world. This experience led to the initiation of over 100 Official Junior Scientists.

Boyle, Timothy J.; Gorman, Anna K.; Pratt, Harry D., III; Hernandez-Sanchez, Bernadette A.; Lambert, Timothy N.; Ottley, Leigh Anna M.; Baros, Christina Marie

2008-04-01T23:59:59.000Z

267

Simulated pion photoproduction experiments  

E-Print Network [OSTI]

Introduction: In this paper, I will be assessing the capabilities of the Neutral Meson Spectrometer (NMS) detector in a planned experiment at the High Intensity Gamma Source at Duke University. I will review the relevant ...

Howe, Ethan (Ethan Gabriel Grief)

2005-01-01T23:59:59.000Z

268

General relativity and experiment  

E-Print Network [OSTI]

The confrontation between Einstein's theory of gravitation and experiment is summarized. Although all current experimental data are compatible with general relativity, the importance of pursuing the quest for possible deviations from Einstein's theory is emphasized.

T. Damour

1994-12-08T23:59:59.000Z

269

Corporate Operating Experience Program  

Broader source: Energy.gov [DOE]

The DOE Corporate Operating Experience Program helps to prevent the recurrence of significant adverse events/trends by sharing performance information, lessons learned and good practices across the DOE complex.

270

The MAJORANA Experiment  

E-Print Network [OSTI]

The MAJORANA collaboration is actively pursuing research and development aimed at a tonne-scale 76Ge neutrinoless double-beta decay) experiment. The current, primary focus is the construction of the MAJORANA DEMONSTRATOR experiment, an R&D effort that will field approximately 40kg of germanium detectors with mixed enrichment levels. This article provides a status update on the construction of the DEMONSTRATOR.

The MAJORANA Collaboration

2011-09-22T23:59:59.000Z

271

The Majorana Experiment  

SciTech Connect (OSTI)

The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale {sup 76}Ge neutrinoless double-beta decay ({beta}{beta}(0{nu})-decay) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment, an R and D effort that will field approximately 40 kg of germanium detectors with mixed enrichment levels. This article provides a status update on the construction of the Demonstrator.

Aguayo, E.; Fast, J. E.; Hoppe, E. W.; Keillor, M. E.; Kephart, J. D.; Kouzes, R. T.; LaFerriere, B. D.; Merriman, J. H.; Orrell, J. L.; Overman, N. R. [Pacific Northwest National Laboratory, Richland, WA (United States); Avignone, F. T. III [Department of Physics and Astronomy, University of South Carolina, Columbia, SC (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States); Back, H. O. [Department of Physics, North Carolina State University, Raleigh, NC (United States); Triangle Universities Nuclear Laboratory, Durham, NC (United States); Barabash, A. S.; Konovalov, S. I.; Vanyushin, I.; Yumatov, V. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bergevin, M.; Chan, Y.-D.; Detwiler, J. A.; Loach, J. C. [Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA (United States); and others

2011-12-16T23:59:59.000Z

272

The MAJORANA Experiment  

SciTech Connect (OSTI)

The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale {sup 76}Ge neutrinoless double-beta decay ({beta}{beta}(0{nu})-decay) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment, an R and D effort that will field approximately 40 kg of germanium detectors with mixed enrichment levels. This article provides a status update on the construction of the Demonstrator.

Aguayo Navarrete, Estanislao; Avignone, F. T.; Back, Henning O.; Barabash, Alexander S.; Bergevin, M.; Bertrand, F.; Boswell, M.; Brudanin, V.; Busch, Matthew; Chan, Yuen-Dat; Christofferson, Cabot-Ann; Collar, J. I.; Combs, Dustin C.; Cooper, R. J.; Detwiler, Jason A.; Doe, Peter J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, Steven R.; Esterline, James H.; Fast, James E.; Fields, N.; Finnerty, P.; Fraenkle, Florian; Gehman, Victor M.; Giovanetti, G. K.; Green, Matthew P.; Guiseppe, Vincente; Gusey, K.; Hallin, A. L.; Hazama, R.; Henning, R.; Hime, Andrew; Hoppe, Eric W.; Horton, Mark; Howard, Stanley; Howe, M. A.; Johnson, R. A.; Keeter, K.; Keillor, Martin E.; Keller, C.; Kephart, Jeremy D.; Kidd, Mary; Knecht, A.; Kochetov, Oleg; Konovalov, S.; Kouzes, Richard T.; LaFerriere, Brian D.; LaRoque, B. H.; Leon, Jonathan D.; Leviner, L.; Loach, J. C.; MacMullin, S.; Marino, Michael G.; Martin, R. D.; Mei, Dong-Ming; Merriman, Jason H.; Miller, M. L.; Mizouni, Leila; Nomachi, Masaharu; Orrell, John L.; Overman, Nicole R.; Phillips, D.; Poon, Alan; Perumpilly, Gopakumar; Prior, Gersende; Radford, D. C.; Rielage, Keith; Robertson, R. G. H.; Ronquest, M. C.; Schubert, Alexis G.; Shima, T.; Shirchenko, M.; Snavely, Kyle J.; Sobolev, V.; Steele, David; Strain, J.; Thomas, K.; Timkin, V.; Tornow, W.; Vanyushin, I.; Varner, R. L.; Vetter, Kai; Vorren, Kris R.; Wilkerson, John; Wolfe, B. A.; Yakushev, E.; Young, A.; Yu, Chang-Hong; Yumatov, Vladimir; Zhang, C.

2011-10-01T23:59:59.000Z

273

EUROPEAN TECHNOLOGY PLATFORM ON INDUSTRIAL SAFETY (ETPIS), A VISION TO GAIN SAFETY FOR A SUSTAINABLE INDUSTRY GROWTH  

E-Print Network [OSTI]

Safety (ETPIS). It is a result of a collective work made by research- ers from organisationsEUROPEAN TECHNOLOGY PLATFORM ON INDUSTRIAL SAFETY (ETPIS), A VISION TO GAIN SAFETY that consider industrial safety as a strategic issue for the sustainable growth of the European Industry

Paris-Sud XI, Université de

274

Measurement of positive gain on the 1315 nm transition of atomic iodine pumped by O2,,a1  

E-Print Network [OSTI]

state I 2 P3/2 . Conventionally, the O2 1 is produced by a liquid chemistry singlet oxygen generator of gain. © 2004 American Institute of Physics. [DOI: 10.1063/1.1784519] The classic chemical oxygen the metastable excited singlet oxygen molecule, O2 a1 [de- noted O2 1 hereafter], and the iodine atom ground

Carroll, David L.

275

Fuzzy-Logic-Based Gain-Scheduling Control for State-of-Charge Balance of Distributed Energy  

E-Print Network [OSTI]

Fuzzy-Logic-Based Gain-Scheduling Control for State-of-Charge Balance of Distributed Energy Storage, the control strategy used in the microgrid must take into account the stored energy balance between strategy based on fuzzy logic that ensures balanced stored energy among distributed energy storage units

Vasquez, Juan Carlos

276

Guaranteed stability regions of linear systems with actuator saturation using the low-and-high gain technique  

E-Print Network [OSTI]

constraints. Although its introduction in (Lin & Saberi1993) was fairly modest, it has since been used on predictive control. The low-and-high gain technique was introduced in Lin & Saberi (1995) as a method ensuring that the region in which stability was guaranteed did not shrink. With the work in Lin & Saberi

Turner, Matthew C.

277

DFIG-Based Wind Turbine Robust Control Using High-Order Sliding Modes and a High Gain Observer  

E-Print Network [OSTI]

DFIG-Based Wind Turbine Robust Control Using High-Order Sliding Modes and a High Gain Observer with the power generation control in variable speed wind turbines. In this context, a control strategy is proposed to ensure power extraction optimization of a DFIG- based wind turbine. The proposed control

Brest, Université de

278

For natural ventilation to work, solar gains through the facade needed to be reduced by approximately 80% from  

E-Print Network [OSTI]

Engineers, Inc. Laboratory Consultant: Research Facilities Design Energy Modeling: SOLARC ArchitectureFor natural ventilation to work, solar gains through the facade needed to be reduced--largely due to the enormous ventilation demands and the energy associated with moving and conditioning

Hochberg, Michael

279

Femtosecond gain and index dynamics in an InAs/InGaAsP quantum dot amplifier  

E-Print Network [OSTI]

Femtosecond gain and index dynamics in an InAs/InGaAsP quantum dot amplifier operating at 1.55 µm and refractive index dynamics of an InAs/InGaAsP self-assembled quantum dot semiconductor optical amplifier (SOA-carrier absorption and stimulated transition processes. ©2006 Optical Society of America OCIS codes: (320

Mojahedi, Mohammad

280

Gain dynamics in a soft X-ray laser ampli er perturbed by a strong injected X-ray eld  

SciTech Connect (OSTI)

Seeding soft X-ray plasma ampli ers with high harmonics has been demonstrated to generate high-brightness soft X-ray laser pulses with full spatial and temporal coherence. The interaction between the injected coherent eld and the swept-gain medium has been modelled. However, no exper- iment has been conducted to probe the gain dynamics when perturbed by a strong external seed eld. Here, we report the rst X-ray pump X-ray probe measurement of the nonlinear response of a plasma ampli er perturbed by a strong soft X-ray ultra-short pulse. We injected a sequence of two time-delayed high-harmonic pulses (l518.9 nm) into a collisionally excited nickel-like molybdenum plasma to measure with femto-second resolution the gain depletion induced by the saturated ampli cation of the high-harmonic pump and its subsequent recovery. The measured fast gain recovery in 1.5 1.75 ps con rms the possibility to generate ultra-intense, fully phase-coherent soft X-ray lasers by chirped pulse ampli cation in plasma ampli ers.

Wang, Yong [Colorado State University, Fort Collins] [Colorado State University, Fort Collins; Wang, Shoujun [Colorado State University, Fort Collins] [Colorado State University, Fort Collins; Oliva, E [Laboratoire de Physique des Gaz et des Gaz et des Plasmas] [Laboratoire de Physique des Gaz et des Gaz et des Plasmas; Lu, L [Laboratoire de Physique des Gaz et des Gaz et des Plasmas] [Laboratoire de Physique des Gaz et des Gaz et des Plasmas; Berrill, Mark A [ORNL] [ORNL; Yin, Liang [Colorado State University, Fort Collins] [Colorado State University, Fort Collins; Nejdl, J [Colorado State University, Fort Collins] [Colorado State University, Fort Collins; Luther, Brad [Colorado State University, Fort Collins] [Colorado State University, Fort Collins; Proux, C [Laboratoire d’Optique Applique´e, ENSTA, CNRS, Ecole Polytechnique] [Laboratoire d’Optique Applique´e, ENSTA, CNRS, Ecole Polytechnique; Le, T. T. [Laboratoire de Physique des Gaz et des Gaz et des Plasmas] [Laboratoire de Physique des Gaz et des Gaz et des Plasmas; Dunn, James [Lawrence Livermore National Laboratory (LLNL)] [Lawrence Livermore National Laboratory (LLNL); Ros, D [Laboratoire de Physique des Gaz et des Gaz et des Plasmas] [Laboratoire de Physique des Gaz et des Gaz et des Plasmas; Zeitoun, Philippe [École Polytechnique] [École Polytechnique; Rocca, Jorge [Colorado State University, Fort Collins] [Colorado State University, Fort Collins

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

Theoretical studies of optical gain tuning by hydrostatic pressure in GaInNAs/GaAs quantum wells  

SciTech Connect (OSTI)

In order to describe theoretically the tuning of the optical gain by hydrostatic pressure in GaInNAs/GaAs quantum wells (QWs), the optical gain calculations within kp approach were developed and applied for N-containing and N-free QWs. The electronic band structure and the optical gain for GaInNAs/GaAs QW were calculated within the 10-band kp model which takes into account the interaction of electron levels in the QW with the nitrogen resonant level in GaInNAs. It has been shown that this interaction increases with the hydrostatic pressure and as a result the optical gain for GaInNAs/GaAs QW decreases by about 40% and 80% for transverse electric and transverse magnetic modes, respectively, for the hydrostatic pressure change from 0 to 40 kilobars. Such an effect is not observed for N-free QWs where the dispersion of electron and hole energies remains unchanged with the hydrostatic pressure. This is due to the fact that the conduction and valence band potentials in GaInAs/GaAs QW scale linearly with the hydrostatic pressure.

Gladysiewicz, M.; Wartak, M. S. [Institute of Physics, Wroclaw University of Technology, 50-370 Wroclaw, Wybrzeze Wyspianskiego 27 (Poland); Department of Physics and Computer Science, Wilfrid Laurier University, Waterloo, Ontario N2L 3C5 (Canada); Kudrawiec, R. [Institute of Physics, Wroclaw University of Technology, 50-370 Wroclaw, Wybrzeze Wyspianskiego 27 (Poland)

2014-01-21T23:59:59.000Z

282

TOWARDS AN ER-DOPED SI NANOCRYSTAL SENSITIZED WAVEGUIDE LASER THE THIN LINE BETWEEN GAIN AND LOSS  

E-Print Network [OSTI]

and waveguide. If the pump laser could somehow be eliminated from this scheme, the fabrication of low-cost SiTOWARDS AN ER-DOPED SI NANOCRYSTAL SENSITIZED WAVEGUIDE LASER ­ THE THIN LINE BETWEEN GAIN AND LOSS-doped SiO2, a composite material that can potentially be fabricated using a VLSI compatible process

Kik, Pieter

283

Towards an Er-doped Si nanocrystal sensitized waveguide laser the thin line between gain and loss  

E-Print Network [OSTI]

somehow be eliminated from this scheme, the fabrication of low-cost Si based Er doped optical amplifiers1 Towards an Er-doped Si nanocrystal sensitized waveguide laser ­ the thin line between gain-doped Si nanocrystal co-doped SiO2, a composite material that can potentially be fabricated using a VLSI

Polman, Albert

284

AbstractThis paper presents an implementation of a networked PI controller using a gain scheduling methodology  

E-Print Network [OSTI]

Abstract­This paper presents an implementation of a networked PI controller using a gain scheduling scheduling technique is also explained. The detail of networked PI controller implementation based on RTLinux such as state augmentation [2], optimal stochastic control [3], and sampling time scheduling [4]. Many

Chow, Mo-Yuen

285

Influence of digestibility of bulky forages in daily gains in penned steers using two levels of supplemented grain  

E-Print Network [OSTI]

Influence of digestibility of bulky forages in daily gains in penned steers using two levels Experimental Agropecuaria, 2700 Pergamino, Buenos Aires, Argentina Digestibility of bulky forages directly, 95-121). In general there is more information about high quality forage digestibility than about low

Paris-Sud XI, Université de

286

A Combined High Gain Observer and High-Order Sliding Mode Controller for a DFIG-Based Wind  

E-Print Network [OSTI]

simulator FAST. Index Terms--Wind turbine (WT), Doubly-Fed Induction Generator (DFIG), high gain observer using the NREL wind turbine simulator FAST. II. WIND TURBINE MODELING The global scheme for a grid-connected shaft speed and thus maintaining optimal power generation. The more variable speed wind turbines

Paris-Sud XI, Université de

287

Dulye Leadership Experience The Ultimate Professional Development Experience  

E-Print Network [OSTI]

Experience Do YOU have what it takes to join the team? Find out more at dle.dulye.com Facebook: https://www.facebook.com/DulyeLeadershipExperience Twitter: DLE4SU #12;Dulye Leadership Experience Program Overview Dulye Leadership Experience The Dulye Leadership Experience (DLE) is a full scholarship, professional development program for Syracuse University

Crowston, Kevin

288

Implementation of BN Control in the National Spherical Torus Experiment  

SciTech Connect (OSTI)

We have designed and constructed a system for control of the normalized B in the National Spherical Torus Experiment [M. Ono, et al., Nuclear Fusion 40, 557 (2000)]. A PID operator is applied to the difference between the present value of B N (from realtime equilibrium reconstruction) and a time-dependent request, in order to calculate the required injected power. This injected power request is then turned into modulations of the neutral beams. The details of this algorithm are described, including the techniques used to develop the appropriate control gains. Example uses of the system are shown

Gerhardt, S; Bell, M G; Cropper, M; Gates, D A; Koleman, E; Lawson, J; Marsala, B; Menard, J E; Mueller, D

2012-09-15T23:59:59.000Z

289

The GERDA Neutrinoless Double Beta-Decay Experiment  

SciTech Connect (OSTI)

Neutrinoless double beta (0{nu}{beta}{beta})-decay is the key process to gain understanding of the nature of neutrinos. The GErmanium Detector Array (GERDA) is designed to search for 0{nu}{beta}{beta}-decay of the isotope {sup 76}Ge. Germanium crystals enriched in {sup 76}Ge, acting as source and detector simultaneously, will be submerged directly into an ultra pure cooling medium that also serves as a radiation shield. This concept will allow for a reduction of the background by up to two orders of magnitudes with respect to earlier experiments.

Majorovits, Bela A. [Max Planck Institut fuer Physik, Foehringer Ring 6, 80805 Munich (Germany)

2007-10-12T23:59:59.000Z

290

Control of linear modes in cylindrical resistive magnetohydrodynamics with a resistive wall, plasma rotation, and complex gain  

SciTech Connect (OSTI)

Feedback stabilization of magnetohydrodynamic (MHD) modes in a tokamak is studied in a cylindrical model with a resistive wall, plasma resistivity, viscosity, and toroidal rotation. The control is based on a linear combination of the normal and tangential components of the magnetic field just inside the resistive wall. The feedback includes complex gain, for both the normal and for the tangential components, and it is known that the imaginary part of the feedback for the former is equivalent to plasma rotation [J. M. Finn and L. Chacon, Phys. Plasmas 11, 1866 (2004)]. The work includes (1) analysis with a reduced resistive MHD model for a tokamak with finite ? and with stepfunction current density and pressure profiles, and (2) computations with a full compressible visco-resistive MHD model with smooth decreasing profiles of current density and pressure. The equilibria are stable for ??=?0 and the marginal stability values ?{sub rp,rw}?gain with normal sensors or plasma rotation stabilizes below ?{sub rp,iw} because rotation suppresses the diffusion of flux from the plasma out through the wall and, more surprisingly, (b) rotation or imaginary gain with normal sensors destabilizes above ?{sub rp,iw} because it prevents the feedback flux from entering the plasma through the resistive wall to form a virtual wall. A method of using complex gain G{sub i} to optimize in the presence of rotation in this regime with ??>??{sub rp,iw} is presented. The effect of imaginary gain with tangential sensors is more complicated but essentially destabilizes above and below ?{sub rp,iw}.

Brennan, D. P. [Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08544 (United States); Finn, J. M. [Applied Mathematics and Plasma Physics, Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2014-10-15T23:59:59.000Z

291

AGS experiments, 1988, 1989, 1990  

SciTech Connect (OSTI)

This report contains: experimental areas layout; table of beam parameters and fluxes; experiment schedule as run''; experiment long range schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS experiments; and list of experimenters.

Depken, J.C.

1991-04-01T23:59:59.000Z

292

Results from Plasma Wakefield Experiments at FACET  

SciTech Connect (OSTI)

We report initial results of the Plasma Wakefield Acceleration (PWFA) Experiments performed at FACET - Facility for Advanced aCcelertor Experimental Tests at SLAC National Accelerator Laboratory. At FACET a 23 GeV electron beam with 1.8 x 10{sup 10} electrons is compressed to 20 {mu}m longitudinally and focused down to 10 {mu}m x 10 {mu}m transverse spot size for user driven experiments. Construction of the FACET facility completed in May 2011 with a first run of user assisted commissioning throughout the summer. The first PWFA experiments will use single electron bunches combined with a high density lithium plasma to produce accelerating gradients > 10 GeV/m benchmarking the FACET beam and the newly installed experimental hardware. Future plans for further study of plasma wakefield acceleration will be reviewed. The experimental hardware and operation of the plasma heat-pipe oven have been successfully commissioned. Plasma wakefield acceleration was not observed because the electron bunch density was insufficient to ionize the lithium vapor. The remaining commissioning time in summer 2011 will be dedicated to delivering the FACET design parameters for the experimental programs which will begin in early 2012. PWFA experiments require the shorter bunches and smaller transverse sizes to create the plasma and drive large amplitude wakefields. Low emittance and high energy will minimize head erosion which was found to be a limiting factor in acceleration distance and energy gain. We will run the PWFA experiments with the design single bunch conditions in early 2012. Future PWFA experiments at FACET are discussed in [5][6] and include drive and witness bunch production for high energy beam manipulation, ramped bunch to optimize tranformer ratio, field-ionized cesium plasma, preionized plasmas, positron acceleration, etc.. We will install a notch collimator for two-bunch operation as well as new beam diagnostics such as the X-band TCAV [7] to resolve the two bunches. With these new instruments and desired beam parameters in place next year, we will be able to complete the studies of plasma wakefield acceleration in the next few years.

Li, S.Z.; Clarke, C.I.; England, R.J.; Frederico, J.; Gessner, S.J.; Hogan, M.J.; Jobe, R.K.; Litos, M.D.; Walz, D.R.; /SLAC; Muggli, P.; /Munich, Max Planck Inst.; An, W.; Clayton, C.E.; Joshi, C.; Lu, W.; Marsh, K.A.; Mori, W.; Tochitsky, S.; /UCLA; Adli, E.; /U. Oslo

2011-12-13T23:59:59.000Z

293

KISMET tungsten dispersal experiment  

SciTech Connect (OSTI)

Results of the KISMET tungsten dispersal experiment indicate a relatively small degree of wall-rock contamination caused by this underground explosive experiment. Designed as an add-on to the KISMET test, which was performed in the U-1a.02 drift of the LYNER facility at Nevada Test Site on 1 March 1995, this experiment involved recovery and analysis of wall-rock samples affected by the high- explosive test. The chemical, high-explosive blast drove tungsten powder, placed around the test package as a plutonium analog, into the surrounding wall- rock alluvium. Sample analyses by an analytical digital electron microscope (ADEM) show tungsten dispersed in the rock as tiny (<10 {mu}m) particles, agglomerates, and coatings on alluvial clasts. Tungsten concentrations, measured by energy dispersive spectral analysis on the ADEM, indicate penetration depths less than 0.1 m and maximum concentrations of 1.5 wt % in the alluvium.

Wohletz, K.; Kunkle, T.; Hawkins, W.

1996-12-01T23:59:59.000Z

294

A demonstration mobility experiment  

E-Print Network [OSTI]

Corporation, Albuquerque& New Nhxico& for his assl. stance and advice in the preparation of the crystslsl snd my wife, Ellen, who corrected gram&asr& typed, proofread& and offered sncouragesmnt throughout the comple- tion of this thesis, I I I 8 I w... Shockley Haynes mobil. ty experiment. Tp Fig, 2. Sketch of oscilloscope trace from asr1y version of tha Shoo'klay Hagrnes momlity experiment, drift toward the eollsotor point with e velocity~? whereMLO the h ~ ability of a boles Ths Current tlsw...

Martin, Howard Lawrence

1961-01-01T23:59:59.000Z

295

The MAJORANA Experiment  

SciTech Connect (OSTI)

The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in {sup 76}Ge. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module are presented.

Guiseppe, V.E. [Univ S Dakota; Keller, C. [Univ S Dakota; Mei, D-M [Univ S Dakota; Perevozchikov, O. [Univ S Dakota; Perumpilly, G. [Univ S Dakota; Thomas, K. [Univ S Dakota; Xiang, W. [Univ S Dakota; Zhang, C. [Univ S Dakota; Aalseth, C.E. [Pacific NW Natl Lab Richland, WA; Aguayo, E. [Pacific NW Natl Lab Richland, WA; Ely, J. [Pacific NW Natl Lab Richland, WA; Fast, J.E. [Pacific NW Natl Lab Richland, WA; Hoppe, E.W. [Pacific NW Natl Lab Richland, WA; Hossbach, T.W. [Pacific NW Natl Lab Richland, WA; Keillor, M. [Pacific NW Natl Lab Richland, WA; Kephart, J.D. [Pacific NW Natl Lab Richland, WA; Kouzes, R. [Pacific NW Natl Lab Richland, WA; Miley, H.S. [Pacific NW Natl Lab Richland, WA; Mizouni, L. [Pacific NW Natl Lab Richland, WA; Myers, A.W. [Pacific NW Natl Lab Richland, WA; Reid, D. [Pacific NW Natl Lab Richland, WA; Amman, M. [Lawrence Berkeley National Laboratory (LBNL); Bergevin, M. [Lawrence Berkeley National Laboratory (LBNL); Chan, Y-D [Lawrence Berkeley National Laboratory (LBNL); Detwiler, J.A. [Lawrence Berkeley National Laboratory (LBNL); Loach, J.C. [Lawrence Berkeley National Laboratory (LBNL); Luke, P.N. [Lawrence Berkeley National Laboratory (LBNL); Martin, R.D. [Lawrence Berkeley National Laboratory (LBNL); Poon, A.W.P. [Lawrence Berkeley National Laboratory (LBNL); Prior, G. [Lawrence Berkeley National Laboratory (LBNL); Vetter, K. [Lawrence Berkeley National Laboratory (LBNL); Yaver, H. [Lawrence Berkeley National Laboratory (LBNL); Avignone, F.T. III [University of South Carolina; Creswick, R. [University of South Carolina; Farach, H. [University of South Carolina; Mizouni, L. [University of South Carolina; Avignone, Frank Titus [ORNL; Bertrand Jr, Fred E [ORNL; Capps, Gregory L [ORNL; Cooper, Reynold J [ORNL; Radford, David C [ORNL; Varner Jr, Robert L [ORNL; Wilkerson, John F [University of North Carolina, Chapel Hill; Yu, Chang-Hong [ORNL; Back, H.O. [University of North Carolina; Leviner, L. [North Carolina State University; Young, A.R. [North Carolina State University; Back (et al.), H.O. [Triangle Universities Nuclear Laboratory, Durham, NC; Bai, X. [South Dakota School of Mines and Technology; Hong, H. [South Dakota School of Mines and Technology; Howard, S. [South Dakota School of Mines and Technology; Medlin, D. [South Dakota School of Mines and Technology; Sobolev, V. [South Dakota School of Mines and Technology; Barabash, A.S. [Inst Theort & Expt Phys, Moscow, Russia; Konovalov, S.I. [Inst Theort & Expt Phys, Moscow, Russia; Vanyushin, I. [Inst Theort & Expt Phys, Moscow, Russia; Yumatov, V. [Inst Theort & Expt Phys, Moscow, Russia; Barbeau, P.S. [University of Chicago; Collar, J.I. [University of Chicago; Fields, N. [University of Chicago; Boswell (et al.), M. [Los Alamos National Laboratory (LANL); Brudanin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Egorov, V. [Joint Institute for Nuclear Research, Dubna, Russia; Gusey, K. [Joint Institute for Nuclear Research, Dubna, Russia; Kochetov, O. [Joint Institute for Nuclear Research, Dubna, Russia; Shirchenko, M. [Joint Institute for Nuclear Research, Dubna, Russia; Timkin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Yakushev, E. [Joint Institute for Nuclear Research, Dubna, Russia; Bugg, W. [University of Tennessee, Knoxville (UTK); Efremenko, M. [University of Tennessee, Knoxville (UTK); Burritt (et al.), T.H. [University of Washington, Ctr Expt Nucle Phys & Astrophys; Burritt (et al.), T.H. [University of Washington, Dept Phys, Seattle, WA; Busch, M. [Duke University; Esterline, J. [Duke University; Swift, G. [Duke University; Tornow, W. [Duke University/TUNL; Ejiri, H. [Osaka University; Hazama, R. [Osaka University; Nomachi, M. [Osaka University; Shima, T. [Osaka University; Finnerty (et al.), P. [University of North Carolina; et al.

2011-01-01T23:59:59.000Z

296

The OLYMPUS Experiment  

E-Print Network [OSTI]

The OLYMPUS experiment was designed to measure the ratio between the positron-proton and electron-proton elastic scattering cross sections, with the goal of determining the contribution of two-photon exchange to the elastic cross section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, $\\mu_p G^p_E/G^p_M$, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01~GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately $25^\\circ$--$75^\\circ$. Symmetric M{\\o}ller/Bhabha calorimeters at $1.29^\\circ$ and telescopes of GEM and MWPC detectors at $12^\\circ$ served as luminosity monitors. A total luminosity of approximately 4.5~fb$^{-1}$ was collected over two running periods in 2012. This paper provides details on the accelerator, target, detectors, and operation of the experiment.

R. Milner; D. K. Hasell; M. Kohl; U. Schneekloth; N. Akopov; R. Alarcon; V. A. Andreev; O. Ates; A. Avetisyan; D. Bayadilov; R. Beck; S. Belostotski; J. C. Bernauer; J. Bessuille; F. Brinker; B. Buck; J. R. Calarco; V. Carassiti; E. Cisbani; G. Ciullo; M. Contalbrigo; N. D'Ascenzo; R. De Leo; J. Diefenbach; T. W. Donnelly; K. Dow; G. Elbakian; D. Eversheim; S. Frullani; Ch. Funke; G. Gavrilov; B. Gläser; N. Görrissen; J. Hauschildt; B. S. Henderson; Ph. Hoffmeister; Y. Holler; L. D. Ice; A. Izotov; R. Kaiser; G. Karyan; J. Kelsey; D. Khaneft; P. Klassen; A. Kiselev; A. Krivshich; I. Lehmann; P. Lenisa; D. Lenz; S. Lumsden; Y. Ma; F. Maas; H. Marukyan; O. Miklukho; A. Movsisyan; M. Murray; Y. Naryshkin; C. O'Connor; R. Perez Benito; R. Perrino; R. P. Redwine; D. Rodríguez Pińeiro; G. Rosner; R. L. Russell; A. Schmidt; B. Seitz; M. Statera; A. Thiel; H. Vardanyan; D. Veretennikov; C. Vidal; A. Winnebeck; V. Yeganov

2013-12-05T23:59:59.000Z

297

FLORIDA TOWER FOOTPRINT EXPERIMENTS  

SciTech Connect (OSTI)

The Florida Footprint experiments were a series of field programs in which perfluorocarbon tracers were released in different configurations centered on a flux tower to generate a data set that can be used to test transport and dispersion models. These models are used to determine the sources of the CO{sub 2} that cause the fluxes measured at eddy covariance towers. Experiments were conducted in a managed slash pine forest, 10 km northeast of Gainesville, Florida, in 2002, 2004, and 2006 and in atmospheric conditions that ranged from well mixed, to very stable, including the transition period between convective conditions at midday to stable conditions after sun set. There were a total of 15 experiments. The characteristics of the PFTs, details of sampling and analysis methods, quality control measures, and analytical statistics including confidence limits are presented. Details of the field programs including tracer release rates, tracer source configurations, and configuration of the samplers are discussed. The result of this experiment is a high quality, well documented tracer and meteorological data set that can be used to improve and validate canopy dispersion models.

WATSON,T.B.; DIETZ, R.N.; WILKE, R.; HENDREY, G.; LEWIN, K.; NAGY, J.; LECLERC, M.

2007-01-01T23:59:59.000Z

298

The Majorana Experiment  

E-Print Network [OSTI]

The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in Ge-76. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module are presented.

V. E. Guiseppe; for the Majorana Collaboration

2010-12-30T23:59:59.000Z

299

ATA beam director experiment  

SciTech Connect (OSTI)

This report describes beam director elements for an experiment at the Advanced Test Accelerator. The elements described include a vernier magnet for beam aiming, an achromat magnet, and an isolation system for the beam interface. These components are built at small scale for concept testing. (JDH)

Lee, E.P.; Younger, F.C.; Cruz, G.E.; Nolting, E.

1986-06-23T23:59:59.000Z

300

The Majorana Experiment  

SciTech Connect (OSTI)

The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in 76Ge. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module are presented.

Aalseth, Craig E.; Aguayo Navarrete, Estanislao; Amman, M.; Avignone, F. T.; Back, Henning O.; Bai, Xinhua; Barabash, Alexander S.; Barbeau, P. S.; Bergevin, M.; Bertrand, F.; Boswell, M.; Brudanin, V.; Bugg, William; Burritt, Tom H.; Busch, Matthew; Capps, Greg L.; Chan, Yuen-Dat; Collar, J. I.; Cooper, R. J.; Creswick, R.; Detwiler, Jason A.; Diaz, J.; Doe, Peter J.; Efremenko, Yuri; Egorov, Viatcheslav; Ejiri, H.; Elliott, S. R.; Ely, James H.; Esterline, James H.; Farach, H. A.; Fast, James E.; Fields, N.; Finnerty, P.; Fraenkle, Florian; Gehman, Victor M.; Giovanetti, G. K.; Green, M.; Guiseppe, Vincente; Gusey, K.; Hallin, A. L.; Harper, Gregory; Hazama, R.; Henning, Reyco; Hime, Andrew; Hong, H.; Hoppe, Eric W.; Hossbach, Todd W.; Howard, Stanley; Howe, M. A.; Johnson, R. A.; Keeter, K.; Keillor, Martin E.; Keller, C.; Kephart, Jeremy D.; Kidd, M. F.; Knecht, A.; Kochetov, Oleg; Konovalov, S.; Kouzes, Richard T.; LaRoque, B. H.; Leviner, L.; Loach, J. C.; Luke, P.; MacMullin, S.; Marino, Michael G.; Martin, R. D.; Medlin, D.; Mei, Dong-Ming; Miley, Harry S.; Miller, M. L.; Mizouni, Leila; Myers, Allan W.; Nomachi, Masaharu; Orrell, John L.; Peterson, David; Phillips, D.; Poon, Alan; Perevozchikov, O.; Perumpilly, Gopakumar; Prior, Gersende; Radford, D. C.; Reid, Douglas J.; Rielage, Keith; Robertson, R. G. H.; Rodriguez, Larry; Ronquest, M. C.; Salazar, Harold; Schubert, Alexis G.; Shima, T.; Shirchenko, M.; Sobolev, V.; Steele, David; Strain, J.; Swift, Gary; Thomas, K.; Timkin, V.; Tornow, W.; Van Wechel, T. D.; Vanyushin, I.; Varner, R. L.; Vetter, Kai; Vorren, Kris R.; Wilkerson, J. F.; Wolfe, B. A.; Xiang, W.; Yakushev, E.; Yaver, Harold; Young, A.; Yu, Chang-Hong; Yumatov, V.; Zhang, C.

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

POLARIZED TARGET EXPERIMENT AT FERMILAB  

E-Print Network [OSTI]

on Experiment 61 at Fermilab, which is a large collaborationBernie Sandler, From From Fermilab. Alan Jonckheere andTARGET EXPERIMENT AT FERMILAB Owen Chamberlain January 1977

Chamberlain, O.

2010-01-01T23:59:59.000Z

302

Need extra money to cover expenses? Find the right student loan to pay your tuition and additional expenses! BeyondApps members Click Here  

E-Print Network [OSTI]

project for them after I finished my MBA in 2010. I remember being incredibly wowed by their passion (Table's Ready, South Carolina) Southwest 19) Energy - Gain hands-on experience in engineering or accounting (CPS Energy, San Antonio, Texas) 20) Fitness and Exercise Science - Bring your energy and hard

Mazzotti, Frank

303

GIS IN LAND RESOURCE MANAGEMENT Distance Education Section  

E-Print Network [OSTI]

: In this course you will gain ample hands-on experience in using ArcGIS and geospatial analysis using real information system (GIS) and geospatial methods as applied to land resource management issues. GOOD TO KNOW projects and find solutions to geospatial problems. OTHER INFORMATION: The course counts towards the ICGIS

Ma, Lena

304

What is Electrical and Computer Engineering?  

E-Print Network [OSTI]

What is Electrical and Computer Engineering? Students gain hands-on, real-world experiences in class. You can make a difference in the world as an electrical or computer engineer. Read below to learn more about career opportunities in these rewarding fields. What do electrical and computer engineers do

Lin, Zhiqun

305

C A M D E N both inside and outside the classroom distinguish the Honors College at  

E-Print Network [OSTI]

applied to the prestigious FBI Honors Internship Program, she knew that listing "Honors College member special agents at FBI Headquarters in Washington, D.C., where she gained hands-on experience one step closer to achieving her ultimate goal: to become an FBI special agent and certified fraud

Hanson, Stephen José

306

Biochemical studies concerning the relationship of various blood and urine constituents to rate of gain in young beef animals  

E-Print Network [OSTI]

of gain in beef animals~ it seeesg XogLoal thai the Xoeele af aortain nutrient blocaL ocaayoneccte shouM be ~sureiL in tbe Xabesatory in this search for a gsoeth incLm, eLnoe these bloog eaterials sores as tbe buUcLing stones fcn groeth anc...LNaLLeae NLe14eLLeal eeelyreLe eae ayykh4 Le eD data ebLaLee4 La %a abeea 4eLeeaLIaaLeae La aa aeLeeLA ee ~L? aey et 4h~ btee4 eeaeLL|eeaLe eLLb eaLe et NsLa et ebe ~i StcaKes bass been oocduotcd oonoercdng possible correlations between rate of gain in bsof...

Ware, James Harold

2012-06-07T23:59:59.000Z

307

Recommended practices in elevated temperature design: A compendium of breeder reactor experiences (1970-1986): An overview  

SciTech Connect (OSTI)

Significant experiences have been accumulated in the establishment of design methods and criteria applicable to the design of Liquid Metal Fast Breeder Reactor (LMFBR) components. The Subcommittee of the Elevated Temperature Design under the Pressure Vessel Research Council (PVRC) has undertaken to collect, on an international basis, design experience gained, and the lessons learned, to provide guidelines for next generation advanced reactor designs. This paper shall present an overview and describe the highlights of the work.

Wei, B.C.; Cooper, W.L. Jr.; Dhalla, A.K.

1987-09-01T23:59:59.000Z

308

Study of gain and photoresponse characteristics for back-illuminated separate absorption and multiplication GaN avalanche photodiodes  

SciTech Connect (OSTI)

The gain and photoresponse characteristics have been numerically studied for back-illuminated separate absorption and multiplication (SAM) GaN avalanche photodiodes (APDs). The parameters of fundamental models are calibrated by simultaneously comparing the simulated dark and light current characteristics with the experimental results. Effects of environmental temperatures and device dimensions on gain characteristics have been investigated, and a method to achieve the optimum thickness of charge layer is obtained. The dependence of gain characteristics and breakdown voltage on the doping concentration of the charge layer is also studied in detail to get the optimal charge layer. The bias-dependent spectral responsivity and quantum efficiency are then presented to study the photoresponse mechanisms inside SAM GaN APDs. It is found the responsivity peak red-shifts at first due to the Franz-Keldysh effect and then blue-shifts due to the reach-through effect of the absorption layer. Finally, a new SAM GaN/AlGaN heterojunction APD structure is proposed for optimizing SAM GaN APDs.

Wang, Xiaodong; Pan, Ming; Hou, Liwei; Xie, Wei [No. 50 Research Institute of China Electronics Technology Group Corporation, 200331 Shanghai (China); Hu, Weida, E-mail: wdhu@mail.sitp.ac.cn; Xu, Jintong; Li, Xiangyang; Chen, Xiaoshuang, E-mail: xschen@mail.sitp.ac.cn; Lu, Wei [National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 200083 Shanghai (China)

2014-01-07T23:59:59.000Z

309

Learning Structural Changes of Gaussian Graphical Models in Controlled Experiments  

E-Print Network [OSTI]

Graphical models are widely used in scienti fic and engineering research to represent conditional independence structures between random variables. In many controlled experiments, environmental changes or external stimuli can often alter the conditional dependence between the random variables, and potentially produce significant structural changes in the corresponding graphical models. Therefore, it is of great importance to be able to detect such structural changes from data, so as to gain novel insights into where and how the structural changes take place and help the system adapt to the new environment. Here we report an effective learning strategy to extract structural changes in Gaussian graphical model using l1-regularization based convex optimization. We discuss the properties of the problem formulation and introduce an efficient implementation by the block coordinate descent algorithm. We demonstrate the principle of the approach on a numerical simulation experiment, and we then apply the algorithm to...

Zhang, Bai

2012-01-01T23:59:59.000Z

310

NATURAL CONVECTION IN PASSIVE SOLAR BUILDINGS: EXPERIMENTS, ANALYSIS AND RESULTS  

SciTech Connect (OSTI)

Computer programs have been developed to numerically simulate natural convection in two- and three-dimensional room geometries. The programs have been validated using published data from the literature, results from a full-scale experiment performed at the Massachusetts Institute of Technology, and results from a small-scale experiment performed at LBL. One of the computer programs has been used to study the influence of natural convection on the thermal performance of a single zone in a direct-gain passive solar building. It is found that the convective heat transfer coefficients between the air and the enclosure surfaces can be substantially different from the values assumed in the standard building energy analysis methods, and can exhibit significant variations across a given surface. This study implies that the building heating loads calculated by standard building energy analysis methods may have substantial errors as a result of their use of common assumptions regarding the convection processes which occur in an enclosure.

Gadgil, A.; Bauman, F.; Kammerud, R.

1981-04-01T23:59:59.000Z

311

Gross decontamination experiment report  

SciTech Connect (OSTI)

A Gross Decontamination Experiment was conducted on various levels and surfaces of the TMI - Unit 2 reactor building in March 1982. The polar crane, D-rings, missile shields, refueling canals, refueling bridges, equipment, and elevations 305' and 347'-6'' were flushed with low pressure water. Additionally, floor surfaces on elevation 305' and floor surfaces and major pieces of equipment on elevation 347'-6'' were sprayed with high pressure water. Selective surfaces were decontaminated with a mechanical scrubber and chemicals. Strippable coating was tested and evaluated on equipment and floor surfaces. The effectiveness, efficiency, and safety of several decontamination techniques were established for the large, complex decontamination effort. Various decontamination equipment was evaluated and its effectiveness was documented. Decontamination training and procedures were documented and evaluated, as were the support system and organization for the experiment.

Mason, R.; Kinney, K.; Dettorre, J.; Gilbert, V.

1983-07-01T23:59:59.000Z

312

Electronics for Satellite Experiments  

SciTech Connect (OSTI)

The tracking detector for the LAT science instrument on the GLAST mission is an example of a large-scale particle detection system built primarily by particle physicists for space flight within the context of a NASA program. The design and fabrication model in most ways reflected practice and experience from particle physics, but the quality assurance aspects were guided by NASA. Similarly, most of the electronics in the LAT as a whole were designed and built by staff at a particle physics lab. This paper reports on many of the challenges and lessons learned in the experience of designing and building the tracking detector and general LAT electronics for use in the NASA GLAST mission.

Johnson, Robert P.; /UC, Santa Cruz

2006-05-16T23:59:59.000Z

313

Experiment on suppression of spontaneous undulator radiation at ATF  

SciTech Connect (OSTI)

We propose undertaking a demonstration experiment on suppressing spontaneous undulator radiation from an electron beam at BNL's Accelerator Test Facility (ATF). We describe the method, the proposed layout, and a possible schedule. There are several advantages in strongly suppressing shot noise in the electron beam, and the corresponding spontaneous radiation. The self-amplified spontaneous (SASE) emission originating from shot noise in the electron beam is the main source of noise in high-gain FEL amplifiers. It may negatively affect several HG FEL applications ranging from single- to multi-stage HGHG FELs. SASE saturation also imposes a fundamental hard limit on the gain of an FEL amplifier in a coherent electron-cooling scheme. A novel active method for suppressing shot noise in relativistic electron beams by many orders-of-magnitude was recently proposed. While theoretically such strong suppression appears feasible, the performance and applicability of this novel method must be evaluated experimentally. Several practical questions about the proposed noise suppressor, such as 3D effects and/or sensitivity to the e-beam parameters also require experimental clarification. To do this, we propose here a proof-of-principle experiment using elements of the VISA FEL at BNL's Accelerator Test Facility.

Litvinenko,V.; Yakimenko, V.

2009-08-23T23:59:59.000Z

314

The OLYMPUS Experiment  

E-Print Network [OSTI]

The OLYMPUS experiment was designed to measure the ratio between the positron-proton and electron-proton elastic scattering cross sections, with the goal of determining the contribution of two-photon exchange to the elastic cross section. Two-photon exchange might resolve the discrepancy between measurements of the proton form factor ratio, $\\mu_p G^p_E/G^p_M$, made using polarization techniques and those made in unpolarized experiments. OLYMPUS operated on the DORIS storage ring at DESY, alternating between 2.01~GeV electron and positron beams incident on an internal hydrogen gas target. The experiment used a toroidal magnetic spectrometer instrumented with drift chambers and time-of-flight detectors to measure rates for elastic scattering over the polar angular range of approximately $25^\\circ$--$75^\\circ$. Symmetric M{\\o}ller/Bhabha calorimeters at $1.29^\\circ$ and telescopes of GEM and MWPC detectors at $12^\\circ$ served as luminosity monitors. A total luminosity of approximately 4.5~fb$^{-1}$ was collect...

Milner, R; Kohl, M; Schneekloth, U; Akopov, N; Alarcon, R; Andreev, V A; Ates, O; Avetisyan, A; Bayadilov, D; Beck, R; Belostotski, S; Bernauer, J C; Bessuille, J; Brinker, F; Buck, B; Calarco, J R; Carassiti, V; Cisbani, E; Ciullo, G; Contalbrigo, M; D'Ascenzo, N; De Leo, R; Diefenbach, J; Donnelly, T W; Dow, K; Elbakian, G; Eversheim, D; Frullani, S; Funke, Ch; Gavrilov, G; Gläser, B; Görrissen, N; Hauschildt, J; Henderson, B S; Hoffmeister, Ph; Holler, Y; Ice, L D; Izotov, A; Kaiser, R; Karyan, G; Kelsey, J; Khaneft, D; Klassen, P; Kiselev, A; Krivshich, A; Lehmann, I; Lenisa, P; Lenz, D; Lumsden, S; Ma, Y; Maas, F; Marukyan, H; Miklukho, O; Movsisyan, A; Murray, M; Naryshkin, Y; O'Connor, C; Benito, R Perez; Perrino, R; Redwine, R P; Pińeiro, D Rodríguez; Rosner, G; Russell, R L; Schmidt, A; Seitz, B; Statera, M; Thiel, A; Vardanyan, H; Veretennikov, D; Vidal, C; Winnebeck, A; Yeganov, V

2014-01-01T23:59:59.000Z

315

AGS Experiments: 1989, 1990, 1991  

SciTech Connect (OSTI)

This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule as run''; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

Depken, J.C.

1992-02-01T23:59:59.000Z

316

AGS Experiments: 1989, 1990, 1991  

SciTech Connect (OSTI)

This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule ``as run``; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

Depken, J.C.

1992-02-01T23:59:59.000Z

317

Matlab's Loss is Nobody's Gain Created Aug. 1998, revised July 31, 2004 http://www.cs.berkeley.edu/~wkahan/MxMulEps.pdf Page 1/36  

E-Print Network [OSTI]

Matlab's Loss is Nobody's Gain Created Aug. 1998, revised July 31, 2004 http://www.cs.berkeley.edu/~wkahan/MxMulEps.pdf Page 1/36 Matlab's Loss is Nobody's Gain Prof. W. Kahan Mathematics Dept. & Elect. Eng. & Computer Sci. Dept. University of California Berkeley CA 94720-1776 Abstract: Matlab has become the software package

California at Berkeley, University of

318

The power gain is the ratio of the power delivered to the load to the power delivered to the input of the amplifier [2].  

E-Print Network [OSTI]

1 The power gain is the ratio of the power delivered to the load to the power delivered to the input of the amplifier [2]. 2 The transducer gain is the ratio of the power delivered to the load to the available power of the source [2] and is a function of the source impedance. If the source impedance has

Groppi, Christopher

319

UoE Employees How to gain access to internal vacancies As a current University employee, you will be eligible to access (via the jobs site) vacancies  

E-Print Network [OSTI]

UoE Employees ­ How to gain access to internal vacancies As a current University employee, you will be eligible to access (via the jobs site) vacancies advertised internally, in addition to those advertised gain access to all vacancies (including those advertised to internal applicants only) whenever you log

Edinburgh, University of

320

Occupational health experience with organic additives  

SciTech Connect (OSTI)

For many decades, interest in occupational medicine has been focused on the wide variety of organic additives, which includes a large number of substances, for example, dyestuffs, pigments, and auxiliaries for the textile, leather, and paper industries. The reason is that, if the recommended precautions are not observed, there is a risk of exposure to most of these substances during both production and use. Moreover, over the years, some additives have caused concern and aroused suspicion regarding adverse effects on health. In order to deal with health problems in this field, it is important to be aware of how, what, and where occupational diseases or accidents arise. Much knowledge has been gained about these, and it would be an impossible task to give a systematic survey of the data that have accumulated, especially since it is necessary to take account of the problem of exposure to more than one substance. Thus an attempt is made to report on occupational health experience in general, and to demonstrate how an industrial hygienist may approach the many and various problems. Some epidemiological studies on organic additives (auramine, anthraquinone dyestuffs, organic dyes, etc.) are discussed.

Thiess, A.M.; Wellenreuther, G.

1984-12-01T23:59:59.000Z

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


321

2169 steel waveform experiments.  

SciTech Connect (OSTI)

In support of LLNL efforts to develop multiscale models of a variety of materials, we have performed a set of eight gas gun impact experiments on 2169 steel (21% Cr, 6% Ni, 9% Mn, balance predominantly Fe). These experiments provided carefully controlled shock, reshock and release velocimetry data, with initial shock stresses ranging from 10 to 50 GPa (particle velocities from 0.25 to 1.05 km/s). Both windowed and free-surface measurements were included in this experiment set to increase the utility of the data set, as were samples ranging in thickness from 1 to 5 mm. Target physical phenomena included the elastic/plastic transition (Hugoniot elastic limit), the Hugoniot, any phase transition phenomena, and the release path (windowed and free-surface). The Hugoniot was found to be nearly linear, with no indications of the Fe - phase transition. Releases were non-hysteretic, and relatively consistent between 3- and 5-mm-thick samples (the 3 mm samples giving slightly lower wavespeeds on release). Reshock tests with explosively welded impactors produced clean results; those with glue bonds showed transient releases prior to the arrival of the reshock, reducing their usefulness for deriving strength information. The free-surface samples, which were steps on a single piece of steel, showed lower wavespeeds for thin (1 mm) samples than for thicker (2 or 4 mm) samples. A configuration used for the last three shots allows release information to be determined from these free surface samples. The sample strength appears to increase with stress from ~1 GPa to ~ 3 GPa over this range, consistent with other recent work but about 40% above the Steinberg model.

Furnish, Michael David; Alexander, C. Scott; Reinhart, William Dodd; Brown, Justin L.

2012-11-01T23:59:59.000Z

322

APT radionuclide production experiment  

SciTech Connect (OSTI)

Tritium ({sup 3}H, a heavy isotope of hydrogen) is produced by low energy neutron-induced reactions on various elements. One such reaction is n+{sup 3}He {yields}>{sup 3}H+{sup 1}H in which {sup 3}He is transmuted to tritium. Another reaction, which has been used in reactor production of tritium, is the n+{sup 6}Li {yields}> {sup 3}H+{sup 4}He reaction. Accelerator Production of Tritium relies on a high-energy proton beam to produce these neutrons using the spallation reaction, in which high-energy proton beam to produce these neutrons using the spallation reaction, in which high-energy protons reacting with a heavy nucleus produce a shower of low-energy neutrons and a lower-mass residual nucleus. It is important to quantify the residual radionuclides produced in the spallation target for two reasons. From an engineering point of view, one must understand short-lived isotopes that may contribute to decay heat. From a safety viewpoint, one must understand what nuclei and decay gammas are produced in order to design adequate shielding, to estimate ultimate waste disposal problems, and to predict possible effects due to accidental dispersion during operation. The authors have performed an experiment to measure the production of radioisotopes in stopping-length W and Pb targets irradiated by a 800 MeV proton beam, and are comparing the results to values obtained from calculations using LAHET and MCNP. The experiment was designed to pay particular attention to the short half-life radionuclides, which have not been previously measured. In the following, they present details of the experiment, explain how they analyzed the data and obtain the results, how they perform the calculations, and finally, how the experimental data agree with the calculations.

Ullmann, J.L.; Gavron, A.; King, J.D. [and others

1994-07-02T23:59:59.000Z

323

On EPR-type Entanglement in the Experiments of Scully et Al. II. Insight in the Real Random Delayed-choice Erasure Experiment  

E-Print Network [OSTI]

It was pointed out in the first part of this study that EPR-type entanglement is defined by the possibility of performing any of two mutually incompatible distant, i. e.,direct-interaction-free, measurements. They go together under the term 'EPR-type disentanglement'. In this second part, quantum-mechanical insight is gained in the real random delayed-choice erasure experiment of Kim et al. [Kim et al.: Phys. Rev. Lett. 84, 1-5 (2000)] by a relative-reality-of- unitarily-evolving-state (RRUES) approach (explained in the first part). Finally, it is shown that this remarkable experiment, which performs, by random choice, two incompatible measurements at the same time, is actually an EPR-type disentanglement experiment, closely related to the micromaser experiment discussed in the first part.

Fedor Herbut

2008-08-23T23:59:59.000Z

324

Operational experience of the Juelich incineration system in the treatment of radioactive waste  

SciTech Connect (OSTI)

After ten years spent on development and testing of a prototype incinerator in the Juelich Research Center, a new industrial scale unit has been built. The paper gives a short description of the plant design and operation characteristics. The major part of the paper deals with the experience gained from the treatment of 355 Mg low-level radioactive waste during the last four years.

Halaszovich, S.; Jablonski, W. [Forschungszentrum Juelich (Germany); Lins, W.; Wurster, W.; Kaufmann, K.H. [Kraftanlagen Aktiengesellschaft, Heidelberg (Germany)

1993-12-31T23:59:59.000Z

325

Fundamental experiments in velocimetry  

SciTech Connect (OSTI)

One can understand what velocimetry does and does not measure by understanding a few fundamental experiments. Photon Doppler Velocimetry (PDV) is an interferometer that will produce fringe shifts when the length of one of the legs changes, so we might expect the fringes to change whenever the distance from the probe to the target changes. However, by making PDV measurements of tilted moving surfaces, we have shown that fringe shifts from diffuse surfaces are actually measured only from the changes caused by the component of velocity along the beam. This is an important simplification in the interpretation of PDV results, arising because surface roughness randomizes the scattered phases.

Briggs, Matthew Ellsworth [Los Alamos National Laboratory; Hull, Larry [Los Alamos National Laboratory; Shinas, Michael [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

326

Water Vapor Experiment Concludes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and Materials Disposition3 Water Vapor Experiment Concludes The

327

BNL | Active ATF Experiments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformationCenterResearch HighlightsToolsBES ReportsExperiment Start-up ATFScienceActive

328

BNL | Completed ATF Experiments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformationCenterResearch HighlightsToolsBES ReportsExperiment Start-upCFN People

329

Sharing Smart Grid Experiences  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing Smart Grid Experiences through Performance Feedback

330

Insights Gained for Updating an Analog I&C System to a Digital System  

SciTech Connect (OSTI)

Licensees at both Nuclear Power Plants (NPPs) and Non-Power Reactors (NPRs) are increasing their use of state-of-the-art digital technology in instrumentation and control (I&C) systems because digital systems offer improved reactor control, information processing, and information storage over analog. Digital I&C systems can range from experimental systems for reactor control research (at NPRs), to measurement and display systems, to complete reactor console replacements. Because of the increasing difficulty in finding spare parts for their original analog I&C systems, many licensees have begun or have plans to upgrade, refurbish, or replace their old analog I&C systems with digital systems. The perception is that upgrading to a digital I&C system will solve all of a facility s obsolescence problems. However, licensees need to be aware of several issues associated with upgrading to a digital system including obsolescence of the digital system (hardware and software) because of the short product life cycle and the associated cost to acquire, store, and maintain a long-term supply of spare parts. Configuration management and cyber security are also vitally important for any upgrade. Further, it must be recognized that the introduction of software and microprocessors could create new failure mechanisms, such as software errors and increased susceptibility to electromagnetic interference. In fact, experience has shown that these failure mechanisms may cause the reactor to malfunction in a way not previously considered. Thus, a conversion from analog to digital I&C systems solves some problems while potentially introducing others. Recognition of the additional risks coupled with good design, engineering, review, and testing can identify and minimize these risks.

Adams, A. [U.S. Nuclear Regulatory Commission; Carte, N. [U.S. Nuclear Regulatory Commission; Hardesty, Duane [U.S. Nuclear Regulatory Commission; Hardin, LeRoy A [U.S. Nuclear Regulatory Commission; Wilson, Thomas L [ORNL

2012-01-01T23:59:59.000Z

331

The majorana experiment  

SciTech Connect (OSTI)

The MAJORANA Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in {sup 76}Ge. Initially, MAJORANA aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype DEMONSTRATOR module are presented. Our proposed method uses the well-established technique of searching for neutrinoless double-beta decay in high purity Ge-diode radiation detectors that play both roles of source and detector. The use of P-PC Ge detectors present advances in background rejection and a Significantly lower energy threshold than conventional Ge detector technologies. The lower energy threshold opens up a broader and exciting physics program including searches for dark matter and axions concurrent with the double-beta decay search. The DEMONSTRATOR should establish that the backgrounds are low enough to justify scaling to tonne-scale experiment, probe the neutrino effective mass region above 100 meV, and search the low energy region with a sensitivity to dark matter. The DEMONSTRATOR will be sited at the 4850-ft level (4200 m.w.e) of the Sanford Underground Laboratory at Homestake and preparations for construction are currently underway.

Rielage, Keith R [Los Alamos National Laboratory; Elliott, Steven R [Los Alamos National Laboratory; Boswell, Melissa [Los Alamos National Laboratory; Gehman, Victor M [Los Alamos National Laboratory; Hime, Andrew [Los Alamos National Laboratory; Kidd, Mary F [Los Alamos National Laboratory; La Roque, Benjamin H [Los Alamos National Laboratory; Rodriguez, Larry [Los Alamos National Laboratory; Ronquest, Michael C [Los Alamos National Laboratory; Salazar, Harry [Los Alamos National Laboratory; Steele, David [Los Alamos National Laboratory

2010-12-13T23:59:59.000Z

332

Critical coupling and coherent perfect absorption for ranges of energies due to a complex gain and loss symmetric system  

E-Print Network [OSTI]

We consider a non-Hermitian medium with a gain and loss symmetric, exponentially damped potential distribution to demonstrate different scattering features analytically. The condition for critical coupling (CC) for unidirectional wave and coherent perfect absorption (CPA) for bidirectional waves are obtained analytically for this system. The energy points at which total absorption occurs are shown to be the spectral singular points for the time reversed system. The possible energies at which CC occurs for left and right incidence are different. We further obtain periodic intervals with increasing periodicity of energy for CC and CPA to occur in this system.

Mohammad Hasan; Ananya Ghatak; Bhabani Prasad Mandal

2014-03-03T23:59:59.000Z

333

Absorption, emission, and gain spectra of 1. 3. mu. m InGaAsP quaternary lasers  

SciTech Connect (OSTI)

The spontaneous emission spectrum of mesa lasers was analyzed to determine the absorption and gain spectra at threshold. The radiative current density at threshold was found to be 4.4 kA cm/sup -2/ ..mu..m/sup -1/, which is 60 percent of the total current density for the lowest threshold mesa laser. The increase in radiative lifetime due to reabsorption of emitted radiation was calculated to be 1.5, using the measured absorption and emission spectra. Contrary to other studies, this investigation of an LED and 3 lasers of different types yielded no evidence of carrier heating.

Henry, C.H.; Logan, R.A.; Merritt, F.R.; Temkin, H.

1983-06-01T23:59:59.000Z

334

Modeling of optical amplifier waveguide based on silicon nanostructures and rare earth ions doped silica matrix gain media by a finite-difference time-domain method: comparison of achievable gain with Er3+ or Nd3+ ions dopants  

E-Print Network [OSTI]

A comparative study of the gain achievement is performed in a waveguide optical amplifier whose active layer is constituted by a silica matrix containing silicon nanograins acting as sensitizer of either neodymium ions (Nd 3+) or erbium ions (Er 3+). Due to the large difference between population levels characteristic times (ms) and finite-difference time step (10 --17 s), the conventional auxiliary differential equation and finite-difference time-domain (ADE-FDTD) method is not appropriate to treat such systems. Consequently, a new two loops algorithm based on ADE-FDTD method is presented in order to model this waveguide optical amplifier. We investigate the steady states regime of both rare earth ions and silicon nanograins levels populations as well as the electromagnetic field for different pumping powers ranging from 1 to 10 4 mW.mm-2. Furthermore, the three dimensional distribution of achievable gain per unit length has been estimated in this pumping range. The Nd 3+ doped waveguide shows a higher gross...

Cardin, Julien; Dufour, Christian; Gourbilleau, Fabrice

2015-01-01T23:59:59.000Z

335

Optical amplifier exhibiting net phase-mismatch selected to at least partially reduce gain-induced phase-matching during operation and method of operation  

DOE Patents [OSTI]

An optical amplifier, such as an optical waveguide amplifier (e.g., an optical fiber amplifier or a planar waveguide) or a non-guiding optical amplifier, that exhibits a net phase-mismatch selected to at least partially reduce gain-induced phase-matching during operation thereof is disclosed. In one aspect of the invention, an optical amplifier structure includes at least one optical amplifier having a length and a gain region. The at least one optical amplifier exhibits a net phase-mismatch that varies along at least part of the length thereof selected to at least partially reduce gain-induced phase-matching during operation thereof.

Feve, Jean-Philippe (Cupertino, CA); Kliner, Dahv A. V. (San Ramon, CA); Farrow; Roger L. (Pleasanton, CA)

2011-02-01T23:59:59.000Z

336

Avalanche buildup time of an InP/InGaAsP/InGaAs APD at high gain  

SciTech Connect (OSTI)

Under a high-gain operating condition, the presence of a multiplication process in the InGaAs(P) regions of an InP/InGaAsP/InGaAs avalanche photodiode having a structure of separated absorption and multiplication regions (SAM-APD) could lead to significant enhancement of the avalanche buildup time. As a result, the bandwidth of the device could be reduced considerably. The dependence of the avalanche multiplication factor and the intrinsic response time on the reverse bias voltage, the heterointerface field, the doping concentrations, and the width of the InP layer are examined in detail for the case in which hole injection is assumed. It is shown, for example, that for a fixed value of doping concentrations, the reduction of the excess noise factor and the enhancement of the gain-bandwidth product of the device can be made at the same time by a proper increase of the width of the InP layer.

Hsieh, H.C.; Sargeant, W. (Iowa State Univ. of Science and Technology, Ames, IA (USA). Dept. of Electrical Engineering)

1989-09-01T23:59:59.000Z

337

Design of Mixed-mode Adaptive Loop Gain Bang-Bang Clock and Data Recovery and Process-Variation-Resilient Current Mode Logic  

E-Print Network [OSTI]

) and Current Mode Logic (CML). This dissertation proposes a mixed-mode adaptive loop gain Bang-Bang CDR. The proposed CDR enhances jitter performances even if jitter spectrum information is limited a priori. By exploiting the inherent hard...

Jeon, Hyung-Joon

2013-03-19T23:59:59.000Z

338

The Tokamak Physics Experiment  

SciTech Connect (OSTI)

The mission of the Tokamak Physics Experiment (TPX) [Nevins {ital et} {ital al}., {ital Plasma} {ital Physics} {ital and} {ital Controlled} {ital Nuclear} {ital Fusion}, Wuerzburg (International Atomic Energy Agency, Vienna, 1992), Vol. 3, p. 279] is to develop the scientific basis for an economically competitive and continuously operating tokamak fusion power source. This complements the primary mission of the International Thermonuclear Experimental Reactor (ITER) [ITER Document Ser. No. 18 (International Atomic Energy Agency, Vienna, 1991)], the demonstration of ignition and long-pulse burn, and the integration of nuclear technologies. The TPX program is focused on making the demonstration power plant that follows ITER as compact and attractive as possible, and on permitting ITER to achieve its ultimate goal of steady-state operation. This mission of TPX requires the development of steady-state regimes with high beta, good confinement, and a high fraction of a self-driven bootstrap current. These regimes must be compatible with plasma stability, strong heat-flux dispersion in the divertor region, and effective particle control.

Davidson, R.C.; Goldston, R.J. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)] [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Neilson, G.H. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)] [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Thomassen, K.I. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)] [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

1995-06-01T23:59:59.000Z

339

Ultrafast gas switching experiments  

SciTech Connect (OSTI)

We describe recent experiments which studied the physics of ultrafast gas breakdown under the extreme overvoltages which occur when a high pressure gas switch is pulse charged to hundreds of kV in 1 ns or less. The highly overvolted peaking gaps produce powerful electromagnetic pulses with risetimes < 100 ps which can be used for ultrawideband radar systems, particle accelerators, laser drivers, bioelectromagnetic studies, electromagnetic effects testing, and for basic studies of gas breakdown physics. We have produced and accurately measured pulses with 50 to 100 ps risetimes to peak levels of 75 to 160 kV at pulse repetition frequencies (PRF) to I kHz. A unique gas switch was developed to hold off hundreds of kV with parasitic inductance less than I nH. An advanced diagnostic system using Fourier compensation was developed to measure single-shot risetimes below 35 ps. The complete apparatus is described and wave forms are presented. The measured data are compared with a theoretical model which predicts key features including dependence on gas species and pressure. We have applied this technology to practical systems driving ultrawideband radiating antennas and bounded wave simulators. For example, we have developed a thyristor/pulse transformer based system using a highly overvolted cable switch. This pulser driving a Sandia- designed TEM cell, provides an ultra wideband impulse with < 200 ps risetime to the test object at a PRF > 1 kHz at > 100 kV/m E field.

Frost, C.A.; Martin, T.H.; Patterson, P.E.; Rinehart, L.F.; Rohwein, G.J.; Roose, L.D.; Aurand, J.F.; Buttram, M.T.

1996-11-01T23:59:59.000Z

340

A Microscopic Double-Slit Experiment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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While these samples are representative of the content of NLEBeta,
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341

A Microscopic Double-Slit Experiment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andAFishing forA MapThe AmesAA

342

A Microscopic Double-Slit Experiment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andAFishing forA MapThe

343

A Microscopic Double-Slit Experiment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andAFishing forA MapTheA

344

A Microscopic Double-Slit Experiment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research andAFishing forA MapTheAA

345

Including Alternative Resources in State Renewable Portfolio Standards: Current Design and Implementation Experience  

SciTech Connect (OSTI)

Currently, 29 states, the District of Columbia, and Puerto Rico have instituted a renewable portfolio standard (RPS). An RPS sets a minimum threshold for how much renewable energy must be generated in a given year. Each state policy is unique, varying in percentage targets, timetables, and eligible resources. This paper examines state experience with implementing renewable portfolio standards that include energy efficiency, thermal resources, and non-renewable energy and explores compliance experience, costs, and how states evaluate, measure, and verify energy efficiency and convert thermal energy. It aims to gain insights from the experience of states for possible federal clean energy policy as well as to share experience and lessons for state RPS implementation.

Heeter, J.; Bird, L.

2012-11-01T23:59:59.000Z

346

Performance Accuracy of Hand-on-needle versus Hand-on-syringe Technique for Ultrasound-guided Regional Anesthesia Simulation for Emergency Medicine Residents  

E-Print Network [OSTI]

JD, et al. Characterizing novice anesthesia rotation onAnaesthesiol Scand. regional anesthesia. Reg Anesth Pain Medsciatic nerve block for ED anesthesia. Am J Emerg Med. 2011;

Johnson, Brian; Herring, Andrew; Stone, Michael; Nagdev, Arun

2014-01-01T23:59:59.000Z

347

Gain-assisted superluminal microwave pulse propagation via four-wave mixing in superconducting phase quantum circuits  

E-Print Network [OSTI]

We study the propagation and amplification of a microwave field in a four-level cascade quantum system which is realized in a superconducting phase quantum circuit. It is shown that by increasing the microwave pump tones feeding the system, the normal dispersion switches to the anomalous and the gain-assisted superluminal microwave propagation is obtained in this system. Moreover, it is demonstrated that the stimulated microwave field is generated via four-wave mixing without any inversion population in the energy levels of the system (amplification without inversion) and the group velocity of the generated pulse can be controlled by the external oscillating magnetic fluxes. We also show that in some special set of parameters, the absorption-free superluminal generated microwave propagation is obtained in superconducting phase quantum circuit system.

Z. Amini Sabegh; A. Vafafard; M. A. Maleki; M. Mahmoudi

2015-02-23T23:59:59.000Z

348

Gain-assisted superluminal microwave pulse propagation via four-wave mixing in superconducting phase quantum circuits  

E-Print Network [OSTI]

We study the propagation and amplification of a microwave field in a four-level cascade quantum system which is realized in a superconducting phase quantum circuit. It is shown that by increasing the microwave pump tones feeding the system, the normal dispersion switches to the anomalous and the gain-assisted superluminal microwave propagation is obtained in this system. Moreover, it is demonstrated that the stimulated microwave field is generated via four-wave mixing without any inversion population in the energy levels of the system (amplification without inversion) and the group velocity of the generated pulse can be controlled by the external oscillating magnetic fluxes. We also show that in some special set of parameters, the absorption-free superluminal generated microwave propagation is obtained in superconducting phase quantum circuit system.

Sabegh, Z Amini; Maleki, M A; Mahmoudi, M

2015-01-01T23:59:59.000Z

349

The potential environmental gains from recycling waste plastics: Simulation of transferring recycling and recovery technologies to Shenyang, China  

SciTech Connect (OSTI)

Research highlights: {yields} Urban symbiosis creates compatibility of industrial development and waste management. {yields} Mechanical technology leads to more CO{sub 2} emission reduction. {yields} Energy recovery technology leads to more fossil fuel saving. {yields} Clean energy makes recycling technologies cleaner. {yields} Demand management is crucial for realizing potential environmental gains of recycling. - Abstract: With the increasing attention on developing a low-carbon economy, it is necessary to seek appropriate ways on reducing greenhouse gas (GHG) emissions through innovative municipal solid waste management (MSWM), such as urban symbiosis. However, quantitative assessments on the environmental benefits of urban symbiosis, especially in developing countries, are limited because only a limited number of planned synergistic activities have been successful and it is difficult to acquire detailed inventory data from private companies. This paper modifies and applies a two-step simulation system and used it to assess the potential environmental benefits, including the reduction of GHG emissions and saving of fossil fuels, by employing various Japanese plastics recycling/energy-recovery technologies in Shenyang, China. The results showed that among various recycling/energy-recovery technologies, the mechanical waste plastics recycling technology, which produces concrete formwork boards (NF boards), has the greatest potential in terms of reducing GHG emissions (1.66 kg CO{sub 2}e/kg plastics), whereas the technology for the production of refuse plastic fuel (RPF) has the greatest potential on saving fossil fuel consumption (0.77 kgce/kg-plastics). Additional benefits can be gained by applying combined technologies that cascade the utilization of waste plastics. Moreover, the development of clean energy in conjunction with the promotion of new waste plastics recycling programs could contribute to additional reductions in GHG emissions and fossil fuel consumption.

Chen Xudong, E-mail: chen.xudong@nies.go.jp [Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016 (China); National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506 (Japan); Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya City 464-8601 (Japan); Xi Fengming [Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016 (China); Geng Yong, E-mail: gengyong@iae.ac.cn [Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016 (China); Fujita, Tsuyoshi [National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506 (Japan); Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya City 464-8601 (Japan)

2011-01-15T23:59:59.000Z

350

Evaluation of the DHCE Experiment  

SciTech Connect (OSTI)

The Dynamic Helium Charging Experiment (DHCE) experiment was conducted in the Fast Flux Test Facility (FFTF) during cycle 12, which was completed in 1992. The purpose of the experiment was to enhance helium generation in vanadium alloys to simulate fusion reactor helium-to-dpa ratios with a target goal of 4-5 appm He/dpa. The Fusion Materials Science Program is considering mounting another experiment in hopes of gathering additional data on the effect of helium on the mechanical and physical properties of vanadium structural materials. Pacific Northwest National Laboratory was assigned the task of evaluating the feasibility of conducting another DHCE experiment by carefully evaluating the results obtained of the first DHCE experiment. This report summarizes the results of our evaluation and presents recommendations for consideration by the Materials Science Coordinators Organization.

Greenwood, Lawrence R.; Baldwin, David L.; Hollenberg, Glenn W.; Kurtz, Richard J.

2002-03-31T23:59:59.000Z

351

Operational Experience with a Cryogenic Axial-Centrifugal Compressor  

E-Print Network [OSTI]

The Large Hadron Collider (LHC), presently under construction at CERN, requires large refrigeration capacity at 1.8 K. Compression of gaseous helium at cryogenic temperatures is therefore inevitable. Together with subcontractors, Linde Kryotechnik has developed a prototype machine. This unit is based on a cryogenic axial-centrifugal compressor, running on ceramic ball bearings and driven by a variable-frequency electrical motor operating at ambient temperature. Integrated in a test facility for superconducting magnets the machine has been commissioned without major problems and successfully gone through the acceptance test in autumn 1995. Subsequent steps were initiated to improve efficiency of this prototype. This paper describes operating experience gained so far and reports on measured performance prior to and after constructional modifications.

Decker, L; Löhlein, K; Purtschert, W; Ziegler, B L; Lebrun, P; Tavian, L; Brunovsky, I; Tucek, L

1998-01-01T23:59:59.000Z

352

DEVELOPMENT AND CONSTRUCTION OF LOW-CRACKING HIGH-PERFORMANCE CONCRETE (LC-HPC) BRIDGE DECKS: FREE SHRINKAGE TESTS, RESTRAINED RING TESTS, CONSTRUCTION EXPERIENCE, AND CRACK SURVEY RESULTS  

E-Print Network [OSTI]

The development, construction, and evaluation of low-cracking high-performance concrete (LC-HPC) bridge decks are described based on laboratory test results and experiences gained during the construction of 13 LC-HPC bridge decks in Kansas, along...

Yuan, Jiqiu

2011-12-31T23:59:59.000Z

353

Future Cosmic Microwave Background Experiments  

E-Print Network [OSTI]

We summarise some aspects of experiments currently being built or planned, and indulge in wild speculation about possibilities on the more distant horizon.

Mark Halpern; Douglas Scott

1999-04-19T23:59:59.000Z

354

Liquid Lithium Limiter Experiments in CDX-U  

SciTech Connect (OSTI)

Recent experiments in the Current Drive Experiment-Upgrade provide a first-ever test of large area liquid lithium surfaces as a tokamak first wall, to gain engineering experience with a liquid metal first wall, and to investigate whether very low recycling plasma regimes can be accessed with lithium walls. The CDX-U is a compact (R = 34 cm, a = 22 cm, B{sub toroidal} = 2 kG, I{sub P} = 100 kA, T{sub e}(0) = 100 eV, n{sub e}(0) {approx} 5 x 10{sup 19} m{sup -3}) spherical torus at the Princeton Plasma Physics Laboratory. A toroidal liquid lithium tray limiter with an area of 2000 cm{sup 2} (half the total plasma limiting surface) has been installed in CDX-U. Tokamak discharges which used the liquid lithium limiter required a fourfold lower loop voltage to sustain the plasma current, and a factor of 5-8 increase in gas fueling to achieve a comparable density, indicating that recycling is strongly reduced. Modeling of the discharges demonstrated that the lithium-limited discharges are consistent with Z{sub effective} < 1.2 (compared to 2.4 for the pre-lithium discharges), a broadened current channel, and a 25% increase in the core electron temperature. Spectroscopic measurements indicate that edge oxygen and carbon radiation are strongly reduced.

R. Majeski; S. Jardin; R. Kaita; T. Gray; P. Marfuta; J. Spaleta; J. Timberlake; L. Zakharov; G. Antar; R. Doerner; S. Luckhardt; R. Seraydarian; V. Soukhanovskii; R. Maingi; M. Finkenthal; D. Stutman; D. Rodgers

2004-10-28T23:59:59.000Z

355

Ultra-High Gradient Dielectric Wakefield Accelerator Experiments  

SciTech Connect (OSTI)

Ultra-high gradient dielectric wakefield accelerators are a potential option for a linear collider afterburner since they are immune to the ion collapse and electron/positron asymmetry problems implicit in a plasma based afterburner. The first phase of an experiment to study the performance of dielectric Cerenkov wakefield accelerating structures at extremely high gradients in the GV/m range has been completed. The experiment took advantage of the unique SLAC FFTB electron beam and its ultra-short pulse lengths and high currents (e.g., {sigma}{sub z} = 20 {micro}m at Q = 3 nC). The FFTB electron beam was successfully focused down and sent through short lengths of fused silica capillary tubing (ID = 200 {micro}m/OD = 325 {micro}m). The pulse length of the electron beam was varied to produce a range of electric fields between 2 and 20 GV/m at the inner surface of the dielectric tubes. We observed a sharp increase in optical emissions from the capillaries in the middle part of this surface field range which we believe indicates the transition between sustainable field levels and breakdown. If this initial interpretation is correct, the surfaced fields that were sustained equate to on axis accelerating field of several GV/m. In future experiments being developed for the SLAC SABER and BNL ATF we plan to use the coherent Cerenkov radiation emitted from the capillary tube as a field strength diagnostic and demonstrate GV/m range particle energy gain.

Thompson, M C; Badakov, H; Rosenzweig, J B; Travish, G; Hogan, M; Ischebeck, R; Kirby, N; Siemann, R; Walz, D; Muggli, P; Scott, A; Yoder, R

2006-08-04T23:59:59.000Z

356

Ultra-High Gradient Dielectric Wakefield Accelerator Experiments  

SciTech Connect (OSTI)

Ultra-high gradient dielectric wakefield accelerators are a potential option for a linear collider afterburner since they are immune to the ion collapse and electron/positron asymmetry problems implicit in a plasma based afterburner. The first phase of an experiment to study the performance of dielectric Cerenkov wakefield accelerating structures at extremely high gradients in the GV/m range has been completed. The experiment took advantage of the unique SLAC FFTB electron beam and its ultra-short pulse lengths and high currents (e.g., {sigma}z = 20 {mu}m at Q = 3 nC). The FFTB electron beam was successfully focused down and sent through short lengths of fused silica capillary tubing (ID = 200 {mu}m / OD = 325 {mu}m). The pulse length of the electron beam was varied to produce a range of electric fields between 2 and 20 GV/m at the inner surface of the dielectric tubes. We observed a sharp increase in optical emissions from the capillaries in the middle part of this surface field range which we believe indicates the transition between sustainable field levels and breakdown. If this initial interpretation is correct, the surfaced fields that were sustained equate to on axis accelerating field of several GV/m. In future experiments being developed for the SLAC SABER and BNL ATF we plan to use the coherent Cerenkov radiation emitted from the capillary tube as a field strength diagnostic and demonstrate GV/m range particle energy gain.

Thompson, M. C. [Lawrence Livermore National Laboratory, Livermore, California, 90095 (United States); Badakov, H.; Rosenzweig, J. B.; Travis, G. [UCLA Department of Physics and Astronomy, Los Angeles, California, 90095 (United States); Hogan, M.; Ischebeck, R.; Kirby, N.; Siemann, R.; Walz, D. [Stanford Linear Accelerator Center, Stanford, California, 94309 (United States); Muggli, P. [University of Southern California Los Angeles, California, 90089 (United States); Scott, A. [UCSB Department of Physics, Santa Barbara, California, 93106 (United States); Yoder, R. [Manhattan College, Riverdale, New York, 10471 (United States)

2006-11-27T23:59:59.000Z

357

Export markets gain strength  

SciTech Connect (OSTI)

The prices for internally traded coal in the USA have reached record levels and the future market fundamentals look very good. This is mainly due to Asian demand. The article discusses recent markets for US coal and summarizes findings of a recent study by Hill & Associates entitled 'International coal trade - supply, demand and prices to 2025'. 1 ref., 2 tabs.

Fiscor, S.

2008-02-15T23:59:59.000Z

358

Gain Sharing.PDF  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for natural gas asWindEECBGSE DOE/IG-480 I N S

359

Gains from Synchronization  

E-Print Network [OSTI]

show that the exporter country bene#12;ts, through decreased noise and uctuations, from devaluating its currency, whereas the importer country does not bene#12;t, in terms of noise and uctuations, from increased valuation of their currency... steady state value. Depending on the value of ( ; #11;), the process has the ability to generate a variety of time paths, including perpetual oscillations. Another \\base model" of an AR(2) process of output is Romer (2001, pages 174-186), which does...

Barnett, William A.; Dalkir, Mehmet

2005-03-30T23:59:59.000Z

360

Experiments in Physics Physics 1291  

E-Print Network [OSTI]

and Conservation of Energy 97 1-9 Standing Waves 105 1-10 Specific Heat and Mechanical Equivalent of Heat 115 #12;#12;Introduction 1-0 General Instructions 1 Purpose of the Laboratory The laboratory experiments described in this manual are an important part of your physics course. Most of the experiments are designed to illustrate

Columbia University

Note: This page contains sample records for the topic "gain hands-on experience" 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

Work Experience Guidance for Managers  

E-Print Network [OSTI]

Work Experience Guidance for Managers When approached with a request for work experience, managers. Any queries regarding CRB checks should be directed to your designated HR Manager. When a work any work, paid or unpaid: Before 7am or after 7pm For more than two hours on a school day or Sunday

362

A Study of Experience Credit for Professional Engineering Licensure  

SciTech Connect (OSTI)

Oak Ridge National Laboratory performed a study of experience credit for professional engineering licensure for the Department of Energy's Industrial Assessment Center (IAC) Program. One of the study's goals was to determine how state licensure boards grant experience credit for engineering licensure, particularly in regards to IAC experience and experience prior to graduation. Another goal involved passing IAC information to state licensure boards to allow the boards to become familiar with the program and determine if they would grant credit to IAC graduates. The National Council of Examiners for Engineers and Surveyors (NCEES) has adopted a document, the ''Model Law''. This document empowers states to create state engineering boards and oversee engineering licensure. The board can also interpret and adopt rules and regulations. The Model Law also gives a general ''process'' for engineering licensure, the ''Model Law Engineer''. The Model Law Engineer requires that an applicant for professional licensure, or professional engineering (PE) licensure, obtain a combination of formal education and professional experience and successfully complete the fundamentals of engineering (FE) and PE exams. The Model Law states that a PE applicant must obtain four years of ''acceptable'' engineering experience after graduation to be allowed to sit for the PE exam. Although the Model Law defines ''acceptable experience,'' it is somewhat open to interpretation, and state boards decide whether applicants have accumulated the necessary amount of experience. The Model Law also allows applicants one year of credit for postgraduate degrees as well as experience credit for teaching courses in engineering. The Model Law grants states the power to adopt and amend the bylaws and rules of the Model Law licensure process. It allows state boards the freedom to modify the experience requirements for professional licensure. This power has created variety in experience requirements, and licensure requirements can differ from state to state. Before this study began, six questions were developed to help document how state boards grant experience credit. Many of the questions were formulated to determine how states deal with teaching experience, postgraduate credit, experience prior to graduation, PE and FE waivers, and the licensure process in general. Data were collected from engineering licensure boards for each of the fifty states and the District of Columbia. Telephone interviews were the primary method of data collection, while email correspondence was also used to a lesser degree. Prior to contacting each board, the researchers attempted to review each state's licensure web site. Based on the data collected, several trends and patterns were identified. For example, there is a general trend away from offering credit for experience prior to graduation. The issue becomes a problem when a PE from one state attempts to gain a license in another state by comity or endorsement. Tennessee and Kansas have recently stopped offering this credit and Mississippi cautions applicants that it could be difficult to obtain licensure in other states.

Martin, M.A.

2003-08-11T23:59:59.000Z

363

DHS Research Experience Summary  

SciTech Connect (OSTI)

I learned a great deal during my summer internship at Lawrence Livermore National Laboratory (LLNL). I plan to continue a career in research, and I feel that my experience at LLNL has been formative. I was exposed to a new area of research, as part of the Single Particle Aerosol Mass Spectrometry (SPAMS) group, and I had the opportunity to work on projects that I would not have been able to work on anywhere else. The projects both involved the use of a novel mass spectrometer that was developed at LLNL, so I would not have been able to do this research at any other facility. The first project that Zachary and I worked on involved using SPAMS to detect pesticides. The ability to rapidly detect pesticides in a variety of matrices is applicable to many fields including public health, homeland security, and environmental protection. Real-time, or near real-time, detection of potentially harmful or toxic chemical agents can offer significant advantages in the protection of public health from accidental or intentional releases of harmful pesticides, and can help to monitor the environmental effects of controlled releases of pesticides for pest control purposes. The use of organophosphate neurotoxins by terrorists is a possibility that has been described; this is a legitimate threat, considering the ease of access, toxicity, and relatively low cost of these substances. Single Particle Aerosol Mass Spectrometry (SPAMS) has successfully been used to identify a wide array of chemical compounds, including drugs, high explosives, biological materials, and chemical warfare agent simulants. Much of this groundbreaking work was carried out by our group at LLNL. In our work, we had the chance to show that SPAMS fulfills a demonstrated need for a method of carrying out real-time pesticide detection with minimal sample preparation. We did this by using a single particle aerosol mass spectrometer to obtain spectra of five different pesticides. Pesticide samples were chosen to represent four common classes of pesticides that are currently used in the US. Permethrin (a pyrethrin insecticide), dichlorvos and malathion (organophosphates), imidacloprid (a chloronicotinyl pesticide), and carbaryl (a carbamate) were selected for analysis. Samples were aerosolized either in water (using a plastic nebulizer) or in ethanol (using a glass nebulizer), and the particles entered the SPAMS instrument through a focusing lens stack. The particles then passed through a stage with three tracking lasers that were used to determine each particle's velocity. This velocity was used to calculate when to fire a desorption/ionization (D/I) laser in order to fragment the particle for analysis in a dual polarity time of flight mass spectrometer. Signals were digitized, and then analyzed using LLNL-developed software. We obtained chemical mass spectral signatures for each pesticide, and assigned peaks to the mass spectra based on our knowledge of the pesticides chemical structures. We then proved the robustness of our detection method by identifying the presence of pesticides in two real-world matrices: Raid{trademark} Ant Spray and a flea collar. To sample these, we simply needed to direct aerosolized particles into the SPAMS instrument. The minimal sample preparation required makes SPAMS very attractive as a detector. Essentially, we were able to show that SPAMS is a reliable and effective method for detecting pesticides at extremely low concentrations in a variety of matrices and physical states. The other project that I had the opportunity to be a part of did not involve data collection in the lab; it consisted of analyzing a large amount of data that had already been collected. We got to look at data collected over the course of about two months, when the SPAMS instrument was deployed to a public place. The machine sampled the air and collected spectra for over two months, storing all the spectra and associated data; we then looked at an approximately two-month subset of this data to search for patterns in the types of particles being detected. Essentially, we we

Venkatachalam, V

2008-10-24T23:59:59.000Z

364

Conference Proceedings Available - The Smart Grid Experience...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conference Proceedings Available - The Smart Grid Experience: Applying Results, Reaching Beyond Conference Proceedings Available - The Smart Grid Experience: Applying Results,...

365

Small-signal modulation and differential gain of red-emitting (??=?630?nm) InGaN/GaN quantum dot lasers  

SciTech Connect (OSTI)

We report small-signal modulation bandwidth and differential gain measurements of a ridge waveguide In{sub 0.4}Ga{sub 0.6}N/GaN quantum dot laser grown by molecular beam epitaxy. The laser peak emission is at ??=?630?nm. The ?3?dB bandwidth of an 800??m long device was measured to be 2.4?GHz at 250?mA under pulsed biasing, demonstrating the possibility of high-speed operation of these devices. The differential gain was measured to be 5.3?×?10{sup ?17}?cm{sup 2}, and a gain compression factor of 2.87?×?10{sup ?17}?cm{sup 3} is also derived from the small-signal modulation response.

Frost, Thomas; Banerjee, Animesh; Bhattacharya, Pallab, E-mail: pkb@eecs.umich.edu [Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)] [Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)

2013-11-18T23:59:59.000Z

366

Critical coupling and coherent perfect absorption for ranges of energies due to a complex gain and loss symmetric system  

SciTech Connect (OSTI)

We consider a non-Hermitian medium with a gain and loss symmetric, exponentially damped potential distribution to demonstrate different scattering features analytically. The condition for critical coupling (CC) for unidirectional wave and coherent perfect absorption (CPA) for bidirectional waves are obtained analytically for this system. The energy points at which total absorption occurs are shown to be the spectral singular points for the time reversed system. The possible energies at which CC occurs for left and right incidence are different. We further obtain periodic intervals with increasing periodicity of energy for CC and CPA to occur in this system. -- Highlights: •Energy ranges for CC and CPA are obtained explicitly for complex WS potential. •Analytical conditions for CC and CPA for PT symmetric WS potential are obtained. •Conditions for left and right CC are shown to be different. •Conditions for CC and CPA are shown to be that of SS for the time reversed system. •Our model shows the great flexibility of frequencies for CC and CPA.

Hasan, Mohammad, E-mail: mohammadhasan786@gmail.com [ISRO Satellite Centre (ISAC), Bangalore-560017 (India); Ghatak, Ananya, E-mail: gananya04@gmail.com [Department of Physics, Banaras Hindu University, Varanasi-221005 (India); Mandal, Bhabani Prasad, E-mail: bhabani.mandal@gmail.com [Department of Physics, Banaras Hindu University, Varanasi-221005 (India)

2014-05-15T23:59:59.000Z

367

Gain analysis of higher-order-mode amplification in a dielectric-implanted multi-beam traveling wave structure  

SciTech Connect (OSTI)

A multi-beam traveling wave amplifier designed with an overmoded staggered double grating array was examined by small signal analysis combined with simulation. Eigenmode and S-parameter analyses show that the 2 cm long slow wave structure (SWS) has 1–5 dB insertion loss over the passband (TM{sub 31} mode) with ?28% cold bandwidth. Analytic gain calculation indicates that in the SWS, TM{sub 31}-mode is amplified with 15–20 dB/beam at 64–84 GHz with three elliptical beams of 10 kV and 150 mA/beam, which was compared with particle-in-cell (PIC) simulations. PIC analysis on the analysis of instability with zero-input driving excitations demonstrated that background noises and non-operating lower order modes are noticeably suppressed by implanting equidistant dielectric absorbers; the overmoded structure only allowed the desired 3rd order mode to propagate in the structure. The designed circuit structure can be widely applied to multi-beam devices for high power RF generation.

Gee, Anthony [Department of Physics, Northern Illinois University, Dekalb, Illinois 60115 (United States)] [Department of Physics, Northern Illinois University, Dekalb, Illinois 60115 (United States); Shin, Young-Min [Department of Physics, Northern Illinois University, Dekalb, Illinois 60115 (United States) [Department of Physics, Northern Illinois University, Dekalb, Illinois 60115 (United States); Accelerator Physics Center (APC), Fermi National Accelerator Laboratory (FNAL), Batavia, Illinois 60510 (United States)

2013-07-15T23:59:59.000Z

368

Health and productivity gains from better indoor environments and their implications for the U.S. Department of Energy  

SciTech Connect (OSTI)

A substantial portion of the US population suffers frequently from communicable respiratory illnesses, allergy and asthma symptoms, and sick building syndrome symptoms. We now have increasingly strong evidence that changes in building design, operation, and maintenance can significantly reduce these illnesses. Decreasing the prevalence or severity of these health effects would lead to lower health care costs, reduced sick leave, and shorter periods of illness-impaired work performance, resulting in annual economic benefits for the US in the tens of billions of dollars. Increasing the awareness of these potential health and economic gains, combined with other factors, could help bring about a shift in the way we design, construct, operate, and occupy buildings. The current goal of providing marginally adequate indoor environments could be replaced by the goal of providing indoor environments that maximize the health, satisfaction, and performance of building occupants. Through research and technology transfer, DOE and its contractors are well positioned to help stimulate this shift in practice and, consequently, improve the health and economic well-being of the US population. Additionally, DOE's energy-efficiency interests would be best served by a program that prepares for the potential shift, specifically by identifying and promoting the most energy-efficient methods of improving the indoor environment. The associated research and technology transfer topics of particular relevance to DOE are identified and discussed.

Fisk, William J.

2000-10-01T23:59:59.000Z

369

New Safety and Technical Challenges and Operational Experience on the JET First Trace Tritium Experiment  

E-Print Network [OSTI]

New Safety and Technical Challenges and Operational Experience on the JET First Trace Tritium Experiment

370

Student ProgramS through education and experiential programs, you will gain knowledge and skills that enable you to address  

E-Print Network [OSTI]

that enable you to address real world challenges, take action, and lead global change. Social innovation Study and valuable exposure to innovative models for social and environmental change. Social Innovation Study trips fulfill the gSB global experience requirement. certificate in public ManageMent and Social innovation

Straight, Aaron

371

Gain uniformity of InP/InGaAsP/InGaAs avalanche photodiodes with separate absorption, grading, and multiplication regions  

SciTech Connect (OSTI)

We report on the spatial uniformity of the gain M of InP/ InGaAsP/InGaAs avalanche photodiodes with separate absorption, grading, and multiplication regions (SAGM-APD's). Typically, these APD's exhibit less than 10 percent variation in the gain (for M less than or equal to 10) over the entire photosensitive area. The small nonuniformity which is observed shows a one-to-one correspondence with inhomogeneities in the epitaxial layers of the SAGM-APD structure. We also observe a reduction in the effective photosensitive diameter with increasing bias voltage.

Holden, W.S.; Campbell, J.C.; Dental, A.G.

1985-09-01T23:59:59.000Z

372

Modeling Warm Dense Matter Experiments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Center (NERSC) at LBNL and has been shown to scale well to thousands of CPUs. New surface tension models that are being implemented and applied to WDM experiments. Some of...

373

Essays in macroeconomics and experiments  

E-Print Network [OSTI]

This dissertation consists of four chapters on empirical and experimental macroeconomics and other experimental topics. Chapter 1 uses a laboratory experiment to test the predictions of a dynamic global game designed to ...

Shurchkov, Olga

2008-01-01T23:59:59.000Z

374

Maintenance FUSION IGNITION RESEARCH EXPERIMENT  

E-Print Network [OSTI]

Insulation Enclosure Remote Maintenance Module FUSION IGNITION RESEARCH EXPERIMENT SYSTEM describes the status of the configuration development and the integration of the major subsystem components vessel structural stiffness, this configuration makes use of the cooling jacket as nuclear shielding

375

DOE Corporate Operating Experience Program  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The Order institutes a DOE wide program for the management of operating experience to prevent adverse operating incidents and facilitate the sharing of good work practices among DOE sites. Cancels DOE O 210.2.

2011-04-08T23:59:59.000Z

376

Field Evaluation of Highly Insulating Windows in the Lab Homes: Winter Experiment  

SciTech Connect (OSTI)

This field evaluation of highly insulating windows was undertaken in a matched pair of 'Lab Homes' located on the Pacific Northwest National Laboratory (PNNL) campus during the 2012 winter heating season. Improving the insulation and solar heat gain characteristics of a home's windows has the potential to significantly improve the home's building envelope and overall thermal performance by reducing heat loss (in the winter), and cooling loss and solar heat gain (in the summer) through the windows. A high quality installation and/or window retrofit will also minimize or reduce air leakage through the window cavity and thus also contribute to reduced heat loss in the winter and cooling loss in the summer. These improvements all contribute to decreasing overall annual home energy use. Occupant comfort (non-quantifiable) can also be increased by minimizing or eliminating the cold 'draft' (temperature) many residents experience at or near window surfaces that are at a noticeably lower temperature than the room air temperature. Lastly, although not measured in this experiment, highly insulating windows (triple-pane in this experiment) also have the potential to significantly reduce the noise transmittance through windows compared to standard double-pane windows. The metered data taken in the Lab Homes and data analysis presented here represent 70 days of data taken during the 2012 heating season. As such, the savings from highly insulating windows in the experimental home (Lab Home B) compared to the standard double-pane clear glass windows in the baseline home (Lab Home A) are only a portion of the energy savings expected from a year-long experiment that would include a cooling season. The cooling season experiment will take place in the homes in the summer of 2012, and results of that experiment will be reported in a subsequent report available to all stakeholders.

Parker, Graham B.; Widder, Sarah H.; Bauman, Nathan N.

2012-06-01T23:59:59.000Z

377

GCFR thermal-hydraulic experiments  

SciTech Connect (OSTI)

The thermal-hydraulic experimental studies performed and planned for the Gas-Cooled Fast Reactor (GCFR) core assemblies are described. The experiments consist of basic studies performed to obtain correlations, and bundle experiments which provide input for code validation and design verification. These studies have been performed and are planned at European laboratories, US national laboratories, Universities in the US, and at General Atomic Company

Schlueter, G.; Baxi, C.B.; Dalle Donne, M.; Gat, U.; Fenech, H.; Hanson, D.; Hudina, M.

1980-01-01T23:59:59.000Z

378

Recent Liquid Lithium Limiter Experiments in CDX-U  

SciTech Connect (OSTI)

Recent experiments in the Current Drive eXperiment-Upgrade (CDX-U) provide a first-ever test of large area liquid lithium surfaces as a tokamak first wall, to gain engineering experience with a liquid metal first wall, and to investigate whether very low recycling plasma regimes can be accessed with lithium walls. The CDX-U is a compact (R=34 cm, a=22 cm, B{sub toroidal} = 2 kG, I{sub P} =100 kA, T{sub e}(0) {approx} 100 eV, n{sub e}(0) {approx} 5 x 10{sup 19} m{sup -3}) spherical torus at the Princeton Plasma Physics Laboratory. A toroidal liquid lithium pool limiter with an area of 2000 cm{sup 2} (half the total plasma limiting surface) has been installed in CDX-U. Tokamak discharges which used the liquid lithium pool limiter required a fourfold lower loop voltage to sustain the plasma current, and a factor of 5-8 increase in gas fueling to achieve a comparable density, indicating that recycling is strongly reduced. Modeling of the discharges demonstrated that the lithium limited discharges are consistent with Z{sub effective} < 1.2 (compared to 2.4 for the pre-lithium discharges), a broadened current channel, and a 25% increase in the core electron temperature. Spectroscopic measurements indicate that edge oxygen and carbon radiation are strongly reduced.

R. Majeski; S. Jardin; R. Kaita; T. Gray; P. Marfuta; J. Spaleta; J. Timberlake; L. Zakharov; G. Antar; R. Doerner; S. Luckhardt; R. Seraydarian; V. Soukhanovskii; R. Maingi; M. Finkenthal; D. Stutman; D. Rodgers; S. Angelini

2005-05-03T23:59:59.000Z

379

MaRIE first experiments summaries version: May 9, 2010  

SciTech Connect (OSTI)

A predictive understanding of microstructure-based heterogeneity and its consequences for materials damage & failure and phase transformation initiation is presently lacking. Most metallic materials used in applications are polycrystalline aggregates - individual single crystals separated by grain boundaries. Most of these materials are either metallic alloys or contain impurities. In either case, there is spatial variability in their chemical composition. These materials also contain dislocations which will be distributed in some way throughout the individual grains and increase in density with deformation and typically form dislocation sub-cell arrangements - producing spatial distribution in dislocation density. Many materials also produce twin or slip band structures with deformation which produce further heterogeneity within individual crystals. The objective of this first experiment is to probe the physics of dynamic solid-solid phase transformation and damage at length scales approaching those at which they nucleate in order to gain a detailed understanding of this process and the influence real material microstructure has on these events. These experiments would simultaneously be simulated by the appropriate modeling tools to further develop these predictive tools and to assist in our interpretation of experimental results.

Sarrao, John L [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

380

Experiences and prospects of nuclear astrophysics in underground laboratories  

SciTech Connect (OSTI)

Impressive progress has been made in the course the last decades in understanding astrophysical objects. Increasing precision of nuclear physics data has contributed significantly to this success, but now a better understanding of several important findings is frequently limited by uncertainties related to the available nuclear physics data. Consequently it is desirable to improve significantly the quality of these data. An important step towards higher precision is an excellent signal to background ratio of the data. Placing an accelerator facility inside an underground laboratory reducing the cosmic ray induced background by six orders of magnitude is a powerful method to reach this goal, even though careful reduction of environmental and beam induced background must still be considered. Experience in the field of underground nuclear astrophysics has been gained since 20 years due to the pioneering work of the LUNA Collaboration (Laboratory for Underground Nuclear Astrophysics) operating inside the underground laboratories of the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. Based on the success of this work presently also several other projects for underground laboratories dedicated to nuclear astrophysics are being pursued worldwide. This contribution will give a survey of the past experience in underground nuclear astrophysics as well as an outlook on future developments.

Junker, M. [INFN - Laboratori Nazionali del Gran Sasso, Via Acitelli, 22, 67100 L'Aquila, Localitŕ Assergi (Italy)

2014-05-09T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

The EBR-II X501 Minor Actinide Burning Experiment  

SciTech Connect (OSTI)

The X501 experiment was conducted in EBR-II as part of the IFR (Integral Fast Reactor) program to demonstrate minor actinide burning through the use of a homogeneous recycle scheme. The X501 subassembly contained two metallic fuel elements loaded with relatively small quantities of americium and neptunium. Interest in the behavior of minor actinides (MA) during fuel irradiation has prompted further examination of existing X501 data, and generation of new data where needed in support of the U.S. waste transmutation effort. The X501 experiment is one of the few minor actinide-bearing fuel irradiation tests conducted worldwide and knowledge can be gained by understanding the changes in fuel behavior due to addition of MA’s. Of primary interest are the affect of the MA’s on fuel-cladding-chemical-interaction, and the redistribution behavior of americium. The quantity of helium gas release from the fuel and any effects of helium on fuel performance are also of interest. It must be stressed that information presented at this time is based on the limited PIE conducted in 1995-1996, and currently represents a set of observations rather than a complete understanding of fuel behavior. This paper provides a summary of the X501 fabrication, characterization, irradiation, and post irradiation examination.

M. K. Meyer; S. L. Hayes; W. J. Carmack; H. Tsai

2009-07-01T23:59:59.000Z

382

The EBR-II X501 Minor Actinide Burning Experiment  

SciTech Connect (OSTI)

The X501 experiment was conducted in EBR-II as part of the IFR (Integral Fast Reactor) program to demonstrate minor actinide burning through the use of a homogeneous recycle scheme. The X501 subassembly contained two metallic fuel elements loaded with relatively small quantities of americium and neptunium. Interest in the behavior of minor actinides (MA) during fuel irradiation has prompted further examination of existing X501 data, and generation of new data where needed in support of the U.S. waste transmutation effort. The X501 experiment is one of the few minor actinide-bearing fuel irradiation tests conducted worldwide and knowledge can be gained by understanding the changes in fuel behavior due to addition of MA’s. Of primary interest are the affect of the MA’s on fuel-cladding-chemical-interaction, and the redistribution behavior of americium. The quantity of helium gas release from the fuel and any effects of helium on fuel performance are also of interest. It must be stressed that information presented at this time is based on the limited PIE conducted in 1995-1996, and currently represents a set of observations rather than a complete understanding of fuel behavior.

Jon Carmack; S. L. Hayes; M. K. Meyer; H. Tsai

2008-06-01T23:59:59.000Z

383

Experiment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicy and Assistance100 tonusingdeposition.EnergyExpedited6

384

Retail Choice Experiments: Comparing Early-AdopterExperience  

SciTech Connect (OSTI)

This paper reviews the experience with retail choice of non-residential electricity customers during the period from early 1998 through the first few months of 2000. Key findings include: (1) customers in California received a significantly smaller discount from utility tariffs than customers in other competitive markets; (2) this sample of large commercial/industrial customers believed they were benefiting significantly more from commodity savings from contracts with retail electricity service providers (RESP) than from value-added services; and,(3) market rules appear to be critical to customer experiences with retail competition, yet the relationship between market rules and market development is inadequately understood.

Golove, William

2003-03-01T23:59:59.000Z

385

A 220GHz InP HBT Solid-State Power Amplifier MMIC with at 8.2dB Compressed Gain  

E-Print Network [OSTI]

A 220GHz InP HBT Solid-State Power Amplifier MMIC with 90mW POUT at 8.2dB Compressed Gain Thomas B, CA, USA 91360 zgriffith@teledyne-si.com Abstract -- A 220 GHz Solid State Power Amplifer MMIC, Solid State Power Amplifier (SSPA). I. INTRODUCTION Future synthetic aperture radars and high resolution

Rodwell, Mark J. W.

386

54 IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY, VOL. 1, NO. 2, FEBRUARY 2013 Multi-Gain-Stage InGaAs Avalanche Photodiode  

E-Print Network [OSTI]

GaAs Avalanche Photodiode with Enhanced Gain and Reduced Excess Noise George M. Williams, Madison Compton, David, and test of an InGaAs avalanche photodiode (APD) for 950­1650 nm wave- length sensing applications. The APD over 1 000. Index Terms--Avalanche photodiode, optical receiver, photo detector, photon counting. I

Hayat, Majeed M.

387

Daily Gazette, Schenectady NY Letters to the Editor for Thursday, July 10, 2008 Nothing to fear, and much to gain, from waste-to-energy  

E-Print Network [OSTI]

, and much to gain, from waste-to-energy Schenectady is one of those misguided cities that sends its municipal solid wastes to distant landfills, costing much money, wasting valuable energy and increasing global warming and pollution of our environment. Waste-to-energy (WTE) is safe. I advised the Israel

Columbia University

388

SWOT analyses were performed on four different campus bike centers to gain an understanding of the most common features of a  

E-Print Network [OSTI]

; #12; #12;#12; #12; SWOT analyses were performed on four different campus bike centers to gain an understanding of the most common features of a successful bike center. #12;#12;#12;#12; #12; #12 their biking knowledge and skills, but their entire lifestyles #12; Design the space

Brownstone, Rob

389

Demonstration of an 8.85 nm Gain-Saturated Table-Top Soft X-Ray Laser and Lasing down to 7.4 nm  

SciTech Connect (OSTI)

We report the efficient generation of a gain-saturated 8.85 nm wavelength table-top soft x-ray laser operating at 1 Hz repetition rate and the observation of lasing at wavelengths as short as 7.36 nm in lanthanide ions.

Wang, Yong [Colorado State University, Fort Collins; Alessi, David [Colorado State University, Fort Collins; Luther, Brad [Colorado State University, Fort Collins; Yin, Liang [Colorado State University, Fort Collins; Martz, Dale [Colorado State University, Fort Collins; Berrill, Mark A [ORNL; Jorge, Rocca [Colorado State University, Fort Collins

2012-01-01T23:59:59.000Z

390

INteRNatIONal BuSINeSS BuSINeSS adMINIStRatION Students will gain critical insights into business operations  

E-Print Network [OSTI]

MINORS INteRNatIONal BuSINeSS BuSINeSS adMINIStRatION Students will gain critical insights into business operations and strategy from accounting, finance, management and marketing coursework. The Business Administration Minor will provide students with fundamental knowledge and exposure to key business

Maxwell, Bruce D.

391

Optimizing New Dark Energy Experiments  

SciTech Connect (OSTI)

Next generation “Stage IV” dark energy experiments under design during this grant, and now under construction, will enable the determination of the properties of dark energy and dark matter to unprecedented precision using multiple complementary probes. The most pressing challenge in these experiments is the characterization and understanding of the systematic errors present within any given experimental configuration and the resulting impact on the accuracy of our constraints on dark energy physics. The DETF and the P5 panel in their reports recommended “Expanded support for ancillary measurements required for the long-term program and for projects that will improve our understanding and reduction of the dominant systematic measurement errors.” Looking forward to the next generation Stage IV experiments we have developed a program to address the most important potential systematic errors within these experiments. Using data from current facilities it has been feasible and timely to undertake a detailed investigation of the systematic errors. In this DOE grant we studied of the source and impact of the dominant systematic effects in dark energy measurements, and developed new analysis tools and techniques to minimize their impact. Progress under this grant is briefly reviewed in this technical report. This work was a necessary precursor to the coming generations of wide-deep probes of the nature of dark energy and dark matter. The research has already had an impact on improving the efficiencies of all Stage III and IV dark energy experiments.

Tyson, J. Anthony [University of California, Davis

2013-08-26T23:59:59.000Z

392

Neutrinoless Double Beta Decay Experiments  

E-Print Network [OSTI]

Neutrinoless double beta decay is the only process known so far able to test the neutrino intrinsic nature: its experimental observation would imply that the lepton number is violated by two units and prove that neutrinos have a Majorana mass components, being their own anti-particle. While several experiments searching for such a rare decay have been performed in the past, a new generation of experiments using different isotopes and techniques have recently released their results or are taking data and will provide new limits, should no signal be observed, in the next few years to come. The present contribution reviews the latest public results on double beta decay searches and gives an overview on the expected sensitivities of the experiments in construction which will be able to set stronger limits in the near future.

Alberto Garfagnini

2014-08-11T23:59:59.000Z

393

Neutrinoless Double Beta Decay Experiments  

E-Print Network [OSTI]

Neutrinoless double beta decay is the only process known so far able to test the neutrino intrinsic nature: its experimental observation would imply that the lepton number is violated by two units and prove that neutrinos have a Majorana mass components, being their own anti-particle. While several experiments searching for such a rare decay have been performed in the past, a new generation of experiments using different isotopes and techniques have recently released their results or are taking data and will provide new limits, should no signal be observed, in the next few years to come. The present contribution reviews the latest public results on double beta decay searches and gives an overview on the expected sensitivities of the experiments in construction which will be able to set stronger limits in the near future.

Garfagnini, Alberto

2014-01-01T23:59:59.000Z

394

The Lead Radius Experiment PREX  

SciTech Connect (OSTI)

The proposed PREX experiment at Jefferson Lab will measure the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons at an energy of 850 MeV and a scattering angle of 6 degrees. Since the Z0 boson couples mainly to neutrons, this asymmetry provides a clean measurement of R{sub n} with a projected experimental precision of 1 %. In addition to being a fundamental test of nuclear theory, a precise measurement of R{sub n} pins down the density dependence of the symmetry energy of neutron rich nuclear matter which has impacts on neutron star structure, heavy ion collisions, and atomic parity violation experiments.

Robert Michaels

2006-10-02T23:59:59.000Z

395

JuliBootS: a hands-on guide to the conformal bootstrap  

E-Print Network [OSTI]

We introduce {\\tt JuliBootS}, a package for numerical conformal bootstrap computations coded in {\\tt Julia}. The centre-piece of {\\tt JuliBootS} is an implementation of Dantzig's simplex method capable of handling arbitrary precision linear programming problems with continuous search spaces. Current supported features include conformal dimension bounds, OPE bounds, and bootstrap with or without global symmetries. The code is trivially parallelizable on one or multiple machines. We exemplify usage extensively with several real-world applications. In passing we give a pedagogical introduction to the numerical bootstrap methods.

Miguel F. Paulos

2014-12-12T23:59:59.000Z

396

ENGINEERING NOW No. 35 2010 College of Engineering Hands-on, Minds-on  

E-Print Network [OSTI]

an autonomous underwater vehicle 6,000 miles 18 Building a Formula-style race car serves as a college diploma mud or flying through the air in an off-road vehicle? 10 Steel bridge team pulls off a choreographic of engineering students and occasionally members from the larger university. The projects range from autonomous

397

Hands-on Training through the University of Florida Living Extension IPM Field Laboratory  

E-Print Network [OSTI]

, reduction of pesticides were also utilized. Training workshops were taught to County Agents, clientele (farmers and homeowners) and partners. A 330-acre farm at the Suwannee Valley Agricultural Extension Center into this concept. Experiential learning opportunities of on-farm laboratories are an effective method of training

Jawitz, James W.

398

Sculpting behavior : a tangible language for hands-on play and learning  

E-Print Network [OSTI]

For over a century, educators and constructivist theorists have argued that children learn by actively forming and testing -- constructing -- theories about how the world works. Recent efforts in the design of "tangible ...

Raffle, Hayes Solos, 1974-

2008-01-01T23:59:59.000Z

399

Hands-on Learning At CU, students learn by doing. In the department of Civil,  

E-Print Network [OSTI]

MS PhD BS/MS A degree in civil engineering prepares students for careers in: Construction industry of life. They apply problem solving skills to meet the challenges of pollution, water quality, climate in my classes have let me work with faculty and industry professionals, and they have helped me

400

System blocks : learning about systems concepts through hands-on modeling and simulation  

E-Print Network [OSTI]

The world is complex and dynamic. Our lives and environment are constantly changing. We are surrounded by all types of interconnected, dynamic systems: ecosystems, financial markets, business processes, and social systems. ...

Zuckerman, Oren, 1970-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

Hands-on Learning CU architectural engineering students learn their trade  

E-Print Network [OSTI]

science to increase comfort and energy efficiency. CU is home to state- of-the-art heating, ventilating

402

MEM 351 Dynamic Systems Lab 3 Hands-on Lab 3  

E-Print Network [OSTI]

the Angular Encoder - Pulses/Rev to 360 and Decoding Type to X4. Step 4: Wire up the optical encoder to the NI for writing LabVIEW programs and both generating and acquiring voltage signals. This lab fulfills our next step ­ to identify the system's underlying dynamics. The resulting data will be used in future labs

Oh, Paul

403

Quantum mechanics for everyone: Hands-on activities integrated with technology  

E-Print Network [OSTI]

target group to include undergraduate science and engineer- ing students, medical students, advanced subject that cannot be understood until students have learned much of classical physics. We these materials with students. © 2002 American Association of Physics Teachers. DOI: 10.1119/1.1435347 I

Zollman, Dean

404

Workshop Provides Hands-On Project Development Training for 26 Tribes |  

Office of Environmental Management (EM)

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405

Tribal Energy Projects Benefit from Hands-On Technical Support | Department  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment7 thFuel27, 2008,Inc.Energy Tri-Partyofof

406

Standard's Guide to Learning Middle School Hands-On Science Elective Class  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage » SearchEnergyDepartmentScopingOverview * AnalyzerNano

407

NNSA conducts hands-on radiation medical training in Taiwan | National  

National Nuclear Security Administration (NNSA)

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408

OpenCL_hands_on_intro_sc14_final_no_zoo_slides.pptx  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy'sRunning jobs Debugging andOpenIn addition

409

Hands-On Session 6: Monolayer Boron Nitride BerkeleyGW Workshop  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky9, 2010 The meetingand Eric Edlund | Princeton

410

Alternative Fuels Data Center: Missouri High School Students Get Hands-On  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAreSmartWayElectricityAlternative FuelsTraining With

411

Ocean Engineering at UNH THE OCEAN ENGINEERING program at UNH provides students with hands-on  

E-Print Network [OSTI]

-on opportunities for research in ocean renewable energy, remotely operated vehicles, ocean mapping, ocean acousticsOcean Engineering at UNH THE OCEAN ENGINEERING program at UNH provides students with hands, and coastal processes. The Jere A. Chase Ocean Engineering Laboratory is equipped with state

Pringle, James "Jamie"

412

Hands On Science with NOAA TITLE: Plate Tectonics and Lava Lamps  

E-Print Network [OSTI]

and geological events?" Answer = heat from radioactive decay · Compare the light bulb in lava to Earth's internal in the lava lamp. · Plot recent earthquakes and volcanic activity on a world map and compare to the location.education.noaa.gov/Ocean_and_Coasts/Ocean_Floor_Features.html USGS Earthquake Hazards - http

413

Reactor accelerator coupling experiments: a feasability study  

E-Print Network [OSTI]

The Reactor Accelerator Coupling Experiments (RACE) are a set of neutron source driven subcritical experiments under temperature feedback conditions. These experiments will involve coupling an accelerator driven neutron source to a TRIGA reactor...

Woddi Venkat Krishna, Taraknath

2006-08-16T23:59:59.000Z

414

David Bohms EPR Gedanken Experiment Frank Rioux  

E-Print Network [OSTI]

David Bohms EPR Gedanken Experiment Frank Rioux In 1951 David Bohm proposed a gedanken experiment, Podolsky and Rosen (EPR) in 1935. In this thought experiment a spin1/2 pair is prepared in a singlet state

Rioux, Frank

415

Hydrogen Piping Experience in Chevron  

E-Print Network [OSTI]

Hydrogen Piping Experience in Chevron Refining Ned Niccolls Materials Engineer Chevron Energy Technology Company Hydrogen Pipeline Working Group Workshop August 30-31, 2005 #12;Outline 2 Overall perspectives from long term use of hydrogen piping in refining. Piping specifications and practices. The (few

416

BUILDING MOBILE EXPERIENCES Frank Bentley  

E-Print Network [OSTI]

BUILDING MOBILE EXPERIENCES Frank Bentley Principal Staff Research Scientist Motorola Mobility of teaching mobile apps class at MIT ! Strong believer in user-inspired innovation ! Have brought several new? ! Investigating the interaction between people and mobile computing devices ! Creating compelling mobile

Glinz, Martin

417

Current Direct Neutrino Mass Experiments  

E-Print Network [OSTI]

In this contribution we review the status and perspectives of direct neutrino mass experiments. These experiments investigate the kinematics of $\\beta$-decays of specific isotopes ($^3$H, $^{187}$Re, $^{163}$Ho) to derive model-independent information on the averaged electron (anti-) neutrino mass, which is formed by the incoherent sum of the neutrino mass eigenstates contributing to the electron neutrino. We first review the kinematics of $\\beta$-decay and the determination of the neutrino mass, before giving a brief overview of past neutrino mass measurements (SN1987a-ToF studies, Mainz and Troitsk experiments for $^3$H, cryo-bolometers for $^{187}$Re). We then describe the Karlsruhe Tritium Neutrino (KATRIN) experiment which is currently under construction at Karlsruhe Institute of Technology. The large-scale setup will use the MAC-E-Filter principle pioneered earlier to push the sensitivity down to a value of 200 meV(90% C.L.). KATRIN faces many technological challenges that have to be resolved with regar...

Drexlin, G; Mertens, S; Weinheimer, C

2013-01-01T23:59:59.000Z

418

ID-69 Sodium drain experiments  

SciTech Connect (OSTI)

This paper describes experiments to determine the sodium retention and drainage from the two key areas of an ID-69. This information is then used as the initiation point for guidelines of how to proceed with washing an ID-69 in the IEM Cell Sodium Removal System.

Johnston, D.C.

1996-09-19T23:59:59.000Z

419

apply skills & experience build skills  

E-Print Network [OSTI]

senior apply skills & experience junior build skills sophomore research & execute freshman explore options1 2 3 4 s u p p o r t4-year career action plan parent about the center for career development Remind your student that it is never too soon or too late to seek an internship or summer job. build

Alvarez, Pedro J.

420

Neutrino Oscillations Experiments at Fermilab  

E-Print Network [OSTI]

Neutrino oscillations provide an unique opportunity to probe physics beyond the Standard Model. Fermilab is constructing two new neutrino beams to provide a decicive test of two of the recent positive indications for neutrino oscillations: MiniBOONE experiment will settle the LSND controversy, MINOS will provide detailed studies of the region indicated by the SuperK results.

Adam Para

2000-05-01T23:59:59.000Z

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


421

Experiments in Physics Physics 1291  

E-Print Network [OSTI]

of the Laboratory The laboratory experiments described in this manual are an important part of your physics course-3 Velocity, Acceleration, and g 35 1-4 Projectile Motion and Conservation of Energy 45 1-5 Conservation. Whenever possible, the material will have been discussed in lecture before you come to the laboratory

Columbia University

422

Experiments in Physics Physics 1291  

E-Print Network [OSTI]

The laboratory experiments described in this manual are an important part of your physics course. Most-8 Projectile Motion and Conservation of Energy 97 1-9 Standing Waves 105 1-10 Specific Heat and Mechanical Equivalent of Heat 115 #12;#12;Introduction 1-0 General Instructions 1 Purpose of the Laboratory

Columbia University

423

DOE Corporate Operating Experience Program  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The Order establishes a DOE wide program for management of operating experience to prevent adverse operating incidents and to expand the sharing of good work practices among DOE sites. Canceled by DOE O 210.2A. Does not cancel other directives.

2006-06-12T23:59:59.000Z

424

Organic Photovoltaics Experiments Showcase 'Superfacility' Research  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Organic Photovoltaics Experiments Showcase 'Superfacility' Concept Organic Photovoltaics Experiments Showcase 'Superfacility' Concept Collaboration Key to Enabling On-The-Fly HPC...

425

Hydrogen Embrittlement Fundamentals, Modeling, and Experiment...  

Energy Savers [EERE]

Hydrogen Embrittlement Fundamentals, Modeling, and Experiment Hydrogen Embrittlement Fundamentals, Modeling, and Experiment Embrittlement, under static load could be a result of...

426

Documentation Requirements for Pressurized Experiment Equipment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Documentation Requirements for Pressurized Experiment Apparatus PSSC NOTE01 15-Jan-2013 When bringing a piece of apparatus to the APS for an experiment that will involve pressure,...

427

Meson Photoproduction Experiments with CLAS  

SciTech Connect (OSTI)

A large part of the experimental program in Hall B of the Jefferson Lab is dedicated to light baryon spectroscopy. Meson photoprodcution experiments are essential part of this program. CEBAF Large Acceptance Spectrometer (CLAS) and availability of circularly and linearly polarized tagged photon beams and frozen spin polarized targets provide unique conditions for this type of experiments. This combination of experimental tools gives a remarkable opportunity to measure double polarization observables for different pseudo-scalar meson photoproduction processes. For the first time, a complete or nearly complete measurement became possible and will facilitate model independent extraction of the reaction amplitude. An overview of the experimental program and its current status together with recent results on double polarization measurements in ?{sup +} photoproduction are presented.

Eugene Pasyuk

2012-12-01T23:59:59.000Z

428

The Compass Experiment at CERN  

SciTech Connect (OSTI)

The COMPASS experiment at the CERN SPS has a broad physics program focused on the study of the spin structure of the nucleon and on hadron spectroscopy. Key measurements for the spin program are the gluon contribution to the spin of the nucleon, flavor dependent quark spin distribution, and the measurement of the transverse spin structure function. The apparatus consists of a two-stage spectrometer designed for high data rates and equipped with high-resolution tracking, particle identification, electromagnetic and hadronic calorimetry. Data taking has started in 2002. Following the CERN SPS shut down in 2005, the experiment will resume data taking in 2006 and is planned to continue (at least) until 2010. Few hundreds of Terabytes of data are put on tape each year. Out of this large amount of data first important physics results have been obtained.

Magnon, A. [DAPNIA/SPhN, CEA-Saclay, F91191 Gif-Sur-Yvette Cedex (France)

2005-02-10T23:59:59.000Z

429

Effect of Calcium Supplements on Gains of Lambs Fed Sorghum Fodder or Sorghum Silage as the Roughage Portion of the Fattening Ration.  

E-Print Network [OSTI]

: ................. ................... . 861 1.183 1.801 1.282 Cottonseed meal . 287 . 352 . 289 .309 ..... / 0 1.349 ........................... . 3'7 3 (30 hd.) hd.) (Salt. oz ........................... ( ' . 271 . 451 . 321 . 34 4 (29 Total gain per lamb .......... Average... ................. Cottonseed meal ................... (27 Ground hegari fodder ............... 10.38 -346 . 861 . 287 1.703 . 18 9.24 . 308 6 (29 hd.) hd.) Salt oz ........................... . 27 4 5 . 45 .38 /Pul;erized limestone. oz ............. 1 . 2421...

Jones, J. M. (John McKinley); Stangel, W. L. (Wenzel Louis)

1938-01-01T23:59:59.000Z

430

Adaptive Gain and Order Scheduling of Optimal Fractional Order PI{\\lambda}D{\\mu} Controllers with Radial Basis Function Neural-Network  

E-Print Network [OSTI]

Gain and order scheduling of fractional order (FO) PI{\\lambda}D{\\mu} controllers are studied in this paper considering four different classes of higher order processes. The mapping between the optimum PID/FOPID controller parameters and the reduced order process models are done using Radial Basis Function (RBF) type Artificial Neural Network (ANN). Simulation studies have been done to show the effectiveness of the RBFNN for online scheduling of such controllers with random change in set-point and process parameters.

Das, Saptarshi; Mukherjee, Ayan; Pan, Indranil; Gupta, Amitava; 10.1109/PACC.2011.5979047

2012-01-01T23:59:59.000Z

431

Final Report: Levitated Dipole Experiment  

SciTech Connect (OSTI)

Since the very first experiments with the LDX, research progress was rapid and significant. Initial experiments were conducted with the high-field superconducting coil suspended by three thin rods. These experiments produced long-pulse, quasi-steady-state microwave discharges, lasting more than 10 s, having peak beta values of 20% [Garnier et al., Physics of Plasmas, 13 (2006) 056111]. High- beta, near steady-state discharges have been maintained in LDX for more than 20 seconds, and this capability made LDX the longest pulse fusion confinement experiment operating in the U.S. fusion program. A significant measure of progress in the LDX research program was the routine investigation of plasma confinement with a magnetically-levitated dipole and the resulting observations of confinement improvement. In both supported and levitated configurations, detailed measurements were made of discharge evolution, plasma dynamics and instability, and the roles of gas fueling, microwave power deposition profiles, and plasma boundary shape. High-temperature plasma was created by multi frequency electron cyclotron resonance heating at 2.45 GHz, 6.4 GHz, 10.5 GHz and 28 GHz allowing control of heating profiles. Depending upon neutral fueling rates, the LDX discharges contain a fraction of energetic electrons, with mean energies above 50 keV. Depending on whether or not the superconducting dipole was levitated or supported, the peak thermal electron temperature was estimated to exceed 500 eV and peak densities to approach 1e18 m?3. We have found that levitation causes a strong inwards density pinch [Boxer et al., Nature Physics, 6 (2010) 207] and we have observed the central plasma density increase dramatically indicating a significant improvement in the confinement of a thermal plasma species.

Kesner, Jay [Massachusetts Institute of Technology; Mauel, Michael [Columbia University

2013-03-10T23:59:59.000Z

432

Practical experience with Title V  

SciTech Connect (OSTI)

Having prepared numerous Title V permit applications and applications for synthetic minor status, the do`s and don`ts of this experience are evaluated. The philosophy for what goes into the application is reviewed, with special regard to the EPA {open_quotes}White Paper{close_quotes} on streamlining the process. The pros and cons of accepting and applying for synthetic minor status are evaluated.

Hoffnagle, G.F. [TRC Environmental, Windsor, CT (United States)

1996-12-31T23:59:59.000Z

433

Plasma Wakefield Experiments at FACET  

SciTech Connect (OSTI)

FACET, the Facility for Advanced Accelerator and Experimental Tests, is a new facility being constructed in sector 20 of the SLAC linac primarily to study beam driven plasma wakefield acceleration beginning in summer 2011. The nominal FACET parameters are 23GeV, 3nC electron bunches compressed to {approx}20{micro}m long and focused to {approx}10{micro}m wide. The intense fields of the FACET bunches will be used to field ionize neutral lithium or cesium vapor produced in a heat pipe oven. Previous experiments at the SLAC FFTB facility demonstrated 50GeV/m gradients in an 85cm field ionized lithium plasma where the interaction distance was limited by head erosion. Simulations indicate the lower ionization potential of cesium will decrease the rate of head erosion and increase single stage performance. The initial experimental program will compare the performance of lithium and cesium plasma sources with single and double bunches. Later experiments will investigate improved performance with a pre-ionized cesium plasma. The status of the experiments and expected performance are reviewed. The FACET Facility is being constructed in sector 20 of the SLAC linac primarily to study beam driven plasma wakefield acceleration. The facility will begin commissioning in summer 2011 and conduct an experimental program over the coming five years to study electron and positron beam driven plasma acceleration with strong wake loading in the non-linear regime. The FACET experiments aim to demonstrate high-gradient acceleration of electron and positron beams with high efficiency and negligible emittance growth.

Hogan, M.J.; England, R.J.; Frederico, J.; Hast, C.; Li, S.Z.; Litos, M.; Walz, D.; /SLAC; An, W.; Clayton, C.E.; Joshi, C.; Lu, W.; Marsh, K.A.; Mori, W.; Tochitsky, S.; /UCLA; Muggli, P.; Pinkerton, S.; Shi, Y.; /Southern California U.

2011-08-19T23:59:59.000Z

434

Thermal blooming experiments. Final report  

SciTech Connect (OSTI)

The goals of this program were to design an experiment for determining the effect of stimulated thermal Brillouin scattering (STBS) on single pulse laser propagation and to establish the ability of both a wave optics code and of linearized theory to predict the results of the experiment accurately. The second goal is particularly important because no experimental verification of analytical tools currently in use for single pulse high power laser propagation is available. When a high power laser propagates through the atmosphere, a small fraction of the laser energy is absorbed, creating acoustic waves that may move a significant distance transverse to the propagation direction during the pulse. Such waves lead to the well-known t{sup 3}-blooming refractive-index variations. When such blooming is sufficiently strong, the induced refractive-index alters the intensity profile of the beam farther along the propagation path. This altered intensity profile induces a somewhat different refractive-index profile that may reinforce the path-integrated t{sup 3} blooming. This self-enhancement may be called near-forward stimulated thermal Brillouin scattering (STBS). The design effort described here was carried out much like the proposed experimental program, which calls for the interaction of experimental work with analytical theory and with a wave optics code, A linearized theory of STBS was developed. Results from this theory were compared to output from a wave optics propagation code for several well defined sets of operating conditions. Once good agreement between theory and code simulation was obtained for these test conditions, the theory was used to define and operating regime for a laboratory scale thermal blooming experiment that would provide information relevant to high power laser propagation. A conceptual design for this experiment was then generated and, finally, and experimental set-up, including diagnostics, was proposed.

Not Available

1990-05-01T23:59:59.000Z

435

AGS experiments: 1990, 1991, 1992. Ninth edition  

SciTech Connect (OSTI)

This report contains a description of the following: AGS Experimental Area - High Energy Physics FY 1993 and Heavy Ion Physics FY 1993; Table of Beam Parameters and Fluxes; Experiment Schedule ``as run``; Proposed 1993 Schedule; A listing of experiments by number; Two-page summaries of each experiment begin here, also ordered by number; Publications of AGS Experiments; and List of AGS Experimenters.

Depken, J.C.

1993-04-01T23:59:59.000Z

436

The Suli Experience | The Ames Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Suli Experience Students and mentors talk about the Science Undergraduate Laboratory Internship (SULI) program...

437

Assess the key physics that underpins high-hydro coupling-efficiency in NDCX-II experiments and high-gain heavy ion direct drive target designs using proven hydro codes like HYDRA  

E-Print Network [OSTI]

physics that underpins high-hydro coupling-efficiency in N Dtarget designs using proven hydro codes like H Y D R A . byF E targets, we have studied hydro and implosion efficiency

Barnard, J. J.

2010-01-01T23:59:59.000Z

438

Physics with the ALICE experiment  

E-Print Network [OSTI]

ALICE experiment at LHC collects data in pp collisions at $\\sqrt{s}$=0.9, 2.76 and 7 TeV and in PbPb collisions at 2.76 TeV. Highlights of the detector performance and an overview of experimental results measured with ALICE in pp and AA collisions are presented in this paper. Physics with proton-proton collisions is focused on hadron spectroscopy at low and moderate $p_T$. Measurements with lead-lead collisions are shown in comparison with those in pp collisions, and the properties of hot quark matter are discussed.

Yuri Kharlov; for the ALICE collaboration

2012-03-09T23:59:59.000Z

439

Physics with the ALICE experiment  

SciTech Connect (OSTI)

ALICE experiment at LHC collects data in pp collisions at 1497-1 = 0.9, 2.76, and 7 TeV and in PbPb collisions at 2.76 TeV. Highlights of the detector performance and an overview of experimental results measured with ALICE in pp and AA collisions are presented in this paper. Physics with protonproton collisions is focused on hadron spectroscopy at low and moderate p{sub t}. Measurements with lead-lead collisions are shown in comparison with those in pp collisions, and the properties of hot quark matter are discussed.

Kharlov, Yu. V. [Institute for High Energy Physics (Russian Federation)

2013-12-15T23:59:59.000Z

440

Attosecond Double-Slit Experiment  

SciTech Connect (OSTI)

A new scheme for a double-slit experiment in the time domain is presented. Phase-stabilized few-cycle laser pulses open one to two windows (slits) of attosecond duration for photoionization. Fringes in the angle-resolved energy spectrum of varying visibility depending on the degree of which-way information are measured. A situation in which one and the same electron encounters a single and a double slit at the same time is observed. The investigation of the fringes makes possible interferometry on the attosecond time scale. From the number of visible fringes, for example, one derives that the slits are extended over about 500 as.

Lindner, F.; Schaetzel, M.G.; Baltuska, A.; Goulielmakis, E. [Max-Planck-Institut fuer Quantenoptik, 85748 Garching (Germany); Walther, H. [Max-Planck-Institut fuer Quantenoptik, 85748 Garching (Germany); Ludwig-Maximilians-Universitaet Muenchen, 85748 Garching (Germany); Krausz, F. [Max-Planck-Institut fuer Quantenoptik, 85748 Garching (Germany); Ludwig-Maximilians-Universitaet Muenchen, 85748 Garching (Germany); Institut fuer Photonik, Technische Universitaet Wien, Gusshausstr. 27, A-1040 Vienna (Austria); Milosevic, D.B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Bauer, D. [Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany); Becker, W. [Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany); Paulus, G.G. [Max-Planck-Institut fuer Quantenoptik, 85748 Garching (Germany); Ludwig-Maximilians-Universitaet Muenchen, 85748 Garching (Germany); Department of Physics, Texas A and M University, College Station, Texas 77843-4242 (United States)

2005-07-22T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

Neutrinoless double beta decay experiments  

E-Print Network [OSTI]

The study of neutrinoless double beta decay is of outmost importance for neutrino physics. It is considered to be the gold plated channel to probe the fundamental character of neutrinos and to determine the neutrino mass. From the experimental point about nine different isotopes are explored for the search. After a general introduction follows a short discussion on nuclear matrix element calculations and supportive measurements. The current experimental status of double beta searches is presented followed by a short discussion of the ideas and proposals for large scale experiments.

K. Zuber

2006-10-04T23:59:59.000Z

442

Experiment Report Instructions General Instructions  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4:Epitaxial Thin Film XRDEvanExecutiveSRD-13ExperiencesReport

443

Stack Monitor Operating Experience Review  

SciTech Connect (OSTI)

Stack monitors are used to sense radioactive particulates and gases in effluent air being vented from rooms of nuclear facilities. These monitors record the levels and types of effluents to the environment. This paper presents the results of a stack monitor operating experience review of the U.S. Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS) database records from the past 18 years. Regulations regarding these monitors are briefly described. Operating experiences reported by the U.S. DOE and in engineering literature sources were reviewed to determine the strengths and weaknesses of these monitors. Electrical faults, radiation instrumentation faults, and human errors are the three leading causes of failures. A representative “all modes” failure rate is 1E-04/hr. Repair time estimates vary from an average repair time of 17.5 hours (with spare parts on hand) to 160 hours (without spare parts on hand). These data should support the use of stack monitors in any nuclear facility, including the National Ignition Facility and the international ITER project.

L. C. Cadwallader; S. A. Bruyere

2009-05-01T23:59:59.000Z

444

Small Break Air Ingress Experiment  

SciTech Connect (OSTI)

The small break air-ingress experiment, described in this report, is designed to investigate air-ingress phenomena postulated to occur in pipes in a very high temperature gas-cooled reactor (VHTRs). During this experiment, air-ingress rates were measured for various flow and break conditions through small holes drilled into a pipe of the experimental apparatus. The holes were drilled at right angles to the pipe wall such that a direction vector drawn from the pipe centerline to the center of each hole was at right angles with respect to the pipe centerline. Thus the orientation of each hole was obtained by measuring the included angle between the direction vector of each hole with respect to a reference line anchored on the pipe centerline and pointing in the direction of the gravitational force. Using this reference system, the influence of several important parameters on the air ingress flow rate were measured including break orientation, break size, and flow velocity . The approach used to study the influence of these parameters on air ingress is based on measuring the changes in oxygen concentrations at various locations in the helium flow circulation system as a function of time using oxygen sensors (or detectors) to estimate the air-ingress rates through the holes. The test-section is constructed of a stainless steel pipe which had small holes drilled at the desired locations.

Chang Oh; Eung Soo Kim

2011-09-01T23:59:59.000Z

445

The polarized SRF gun experiment.  

SciTech Connect (OSTI)

RF electron guns are capable of producing electron bunches with high brightness, which outperform DC electron guns and may even be able to provide electron beams for the ILC without the need for a damping ring. However, all successful existing guns for polarized electrons are DC guns because the environment inside an RF gun is hostile to the GaAs cathode material necessary for polarization. While the typical vacuum pressure in a DC gun is better than 10{sup -11} torr the vacuum in an RF gun is in the order of 10{sup -9} torr. Experiments at BINP Novosibirsk show that this leads to strong ion back-bombardment and generation of dark currents, which destroy the GaAs cathode in a short time. The situation might be much more favorable in a (super-conducting) SRF gun. The cryogenic pumping of the gun cavity walls may make it possible to maintain a vacuum close to 10{sup -12} torr, solving the problem of ion bombardment and dark currents. Of concern would be contamination of the gun cavity by evaporating cathode material. This report describes an experiment that Brookhaven National Laboratory (BNL) in collaboration with Advanced Energy Systems (AES) is conducting to answer these questions.

Kewisch,J.; Ben-Zvi, I.; Rao, T.; Burrill, A.; Pate, D.; Grover, R.; Todd, R.; Bluem, H.; Holmes, D.; Schultheiss, T.

2007-09-10T23:59:59.000Z

446

Final Report: Levitated Dipole Experiment  

SciTech Connect (OSTI)

Since the very first experiments with the LDX, research progress was rapid and significant. Initial experiments were conducted with the high-field superconducting coil suspended by three thin rods. These experiments produced long-pulse, quasi-steady-state microwave discharges, lasting more than 10 s, having peak beta values of 20% [Garnier, Phys. Plasmas, v13, p. 056111, 2006]. High-beta, near steady-state discharges have been maintained in LDX for more than 20 seconds, and this capability makes LDX the longest pulse fusion confinement experiment now operating in the U.S. fusion program. In both supported and levitated configurations, detailed measurements are made of discharge evolution, plasma dynamics and instability, and the roles of gas fueling, microwave power deposition profiles, and plasma boundary shape. High-temperature plasma is created by multifrequency electron cyclotron resonance heating allowing control of heating profiles. Depending upon neutral fueling rates, the LDX discharges contain a fraction of energetic electrons, with mean energies above 50 keV. Depending on whether or not the superconducting dipole is levitated or supported, the peak thermal electron temperature is estimated to exceed 500 eV and peak densities reach 1.0E18 (1/m3). Several significant discoveries resulted from the routine investigation of plasma confinement with a magnetically-levitated dipole. For the first time, toroidal plasma with pressure approaching the pressure of the confining magnetic field was well-confined in steady-state without a toroidal magnetic field. Magnetic levitation proved to be reliable and is now routine. The dipole's cryostat allows up to three hours of "float time" between re-cooling with liquid helium and providing scientists unprecedented access to the physics of magnetizd plasma. Levitation eliminates field-aligned particle sources and sinks and results in a toroidal, magnetically-confined plasma where profiles are determined by cross-field transport. We find levitation causes the central plasma density to increase dramatically and to significantly improve the confinement of thermal plasma [Boxer, Nature-Physics, v8, p. 949, 2010]. Several diagnostic systems have been used to measure plasma fluctuations, and these appear to represent low-frequency convection that may lead to adiabatic heating and strongly peaked pressure profiles. These experiments are remarkable, and the motivate wide-ranging studies of plasma found in space and confined for fusion energy. In the following report, we describe: (i) observations of the centrally-peaked density profile that appears naturally as a consequence of a strong turbulent pinch, (ii) observations of overall density and pressure increases that suggest large improvements to the thermal electron confinement time result occur during levitation, and (iii) the remarkable properties of low-frequency plasma fluctuations that cause magnetized plasma to "self-organize" into well-confined, centrally-peaked profiles that are relative to fusion and to space.

Kesner, Jay; Mauel, Michael

2013-03-10T23:59:59.000Z

447

HERS experiment cause for confidence.  

SciTech Connect (OSTI)

At last April's Affordable Comfort conference, I conducted a small HERS (home energy ratings) experiment to examine the relative variability of ratings in new and older homes. The experiment grew out of discussions with Oak Ridge National Laboratory Senior Researcher Mark Ternes and EPA Energy Specialist Mia South about how good the HERS tools currently employed in the new homes market are at identifying cost-effective conservation measures in existing homes. Older homes present challenges for raters that may not generally exist in new construction. These include the absence of blueprints, the inability to interview the builder, the difficulty of identifying the operating efficiency of installed equipment, and different envelope characteristics within the home caused by partial remodels over the years. For precisely these reasons, the need for accurate ratings of older homes is acute. The efficacy of ratings in existing homes hinges on two questions: How accurate are the ratings in existing homes? and, How much does accuracy matter to the selection of conservation measures? A small experiment was organized to test the variability of ratings. Two homes were chosen to represent the very broad spectra that raters can find in the new-construction and existing-home housing stock. The new home in Park Ridge, Illinois, is typical in size and layout of the homes being built in the suburbs around Chicago. This four-bedroom, two-story house with finished basement measures slightly more than 4,000 ft{sup 2}, including the basement. The older home is located in Elgin, Illinois, and was built before 1940, probably sometime in the '20s or '30s. This two-bedroom house has a basement in which the furnace, water heater, clothes washer, and dryer are located. The raters disagreed as to whether the basement should be considered part of the conditioned space. Excluding the basement area, the house measurement approximately 1,000 ft{sup 2}. The rating process included a site visit to measure the homes features, inspection of the blueprints for the new home (none existed for the Elgin home), and a blower door test. After the raters completed their analysis, I examined the effect that the variability of ratings for the Elgin home had on choices for energy conservation measures. Although the sample was small, the results of this experiment are valuable. They may be summarized as follows: First, the ratings that different analysts estimated varied more widely for the older home than they did for the new home. Second, for the older home, the identification of cost-effective energy conservation measures was insensitive to the variation in ratings. Clearly, these findings need to be verified in further experiments. But it is noteworthy that the separate ratings of the new home were in such good agreement, and that cost-effective efficiency recommendations can be arrived at even when divergences exist in the absolute rating value. These findings also suggest that it is appropriate to have confidence in ratings as a tool for identifying cost-effective energy measures in older housing stock.

Cavallo, J. D.; Energy Systems

1999-09-01T23:59:59.000Z

448

Experiment Design and Analysis Guide - Neutronics & Physics  

SciTech Connect (OSTI)

The purpose of this guide is to provide a consistent, standardized approach to performing neutronics/physics analysis for experiments inserted into the Advanced Test Reactor (ATR). This document provides neutronics/physics analysis guidance to support experiment design and analysis needs for experiments irradiated in the ATR. This guide addresses neutronics/physics analysis in support of experiment design, experiment safety, and experiment program objectives and goals. The intent of this guide is to provide a standardized approach for performing typical neutronics/physics analyses. Deviation from this guide is allowed provided that neutronics/physics analysis details are properly documented in an analysis report.

Misti A Lillo

2014-06-01T23:59:59.000Z

449

The COMPASS Experiment at CERN  

E-Print Network [OSTI]

The COMPASS experiment makes use of the CERN SPS high-intensitymuon and hadron beams for the investigation of the nucleon spin structure and the spectroscopy of hadrons. One or more outgoing particles are detected in coincidence with the incoming muon or hadron. A large polarized target inside a superconducting solenoid is used for the measurements with the muon beam. Outgoing particles are detected by a two-stage, large angle and large momentum range spectrometer. The setup is built using several types of tracking detectors, according to the expected incident rate, required space resolution and the solid angle to be covered. Particle identification is achieved using a RICH counter and both hadron and electromagnetic calorimeters. The setup has been successfully operated from 2002 onwards using a muon beam. Data with a hadron beam were also collected in 2004. This article describes the main features and performances of the spectrometer in 2004; a short summary of the 2006 upgrade is also given.

Abbon, P.; Alexakhin, V.Yu.; Alexandrov, Yu.; Alexeev, G.D.; Alekseev, M.G.; Amoroso, A.; Angerer, H.; Anosov, V.A.; Badelek, B.; Balestra, F.; Ball, J.; Barth, J.; Baum, G.; Becker, M.; Bedfer, Y.; Berglund, P.; Bernet, C.; Bertini, R.; Bettinelli, M.; Birsa, R.; Bisplinghoff, J.; Bordalo, P.; Bosteels, M.; Bradamante, F.; Braem, A.; Bravar, A.; Bressan, A.; Brona, G.; Burtin, E.; Bussa, M.P.; Bytchkov, V.N.; Chalifour, M.; Chapiro, A.; Chiosso, M.; Ciliberti, P.; Cicuttin, A.; Colantoni, M.; Colavita, A.A.; Costa, S.; Crespo, M.L.; Cristaudo, P.; Dafni, T.; d'Hose, N.; Dalla Torre, S.; d'Ambrosio, C.; Das, S.; Dasgupta, S.S.; Delagnes, E.; De Masi, R.; Deck, P.; Dedek, N.; Demchenko, D.; Denisov, O.Yu.; Dhara, L.; Diaz, V.; Dibiase, N.; Dinkelbach, A.M.; Dolgopolov, A.V.; Donati, A.; Donskov, S.V.; Dorofeev, V.A.; Doshita, N.; Durand, D.; Duic, V.; Dunnweber, W.; Efremov, A.; Eversheim, P.D.; Eyrich, W.; Faessler, M.; Falaleev, V.; Fauland, P.; Ferrero, A.; Ferrero, L.; Finger, M.; Finger, M.; Fischer, H.; Franco, C.; Franz, J.; Fratnik, F.; Friedrich, J.M.; Frolov, V.; Fuchs, U.; Garfagnini, R.; Gatignon, L.; Gautheron, F.; Gavrichtchouk, O.P.; Gerassimov, S.; Geyer, R.; Gheller, J.M.; Giganon, A.; Giorgi, M.; Gobbo, B.; Goertz, S.; Gorin, A.M.; Gougnaud, F.; Grabmuller, S.; Grajek, O.A.; Grasso, A.; Grube, B.; Grunemaier, A.; Guskov, A.; Haas, F.; Hagemann, R.; Hannappel, J.; von Harrach, D.; Hasegawa, T.; Heckmann, J.; Hedicke, S.; Heinsius, F.H.; Hermann, R.; Hess, C.; Hinterberger, F.; von Hodenberg, M.; Horikawa, N.; Horikawa, S.; Horn, I.; Ilgner, C.; Ioukaev, A.I.; Ishimoto, S.; Ivanchin, I.; Ivanov, O.; Iwata, T.; Jahn, R.; Janata, A.; Joosten, R.; Jouravlev, N.I.; Kabuss, E.; Kalinnikov, V.; Kang, D.; Karstens, F.; Kastaun, W.; Ketzer, B.; Khaustov, G.V.; Khokhlov, Yu.A.; Kiefer, J.; Kisselev, Yu.; Klein, F.; Klimaszewski, K.; Koblitz, S.; Koivuniemi, J.H.; Kolosov, V.N.; Komissarov, E.V.; Kondo, K.; Konigsmann, Kay; Konoplyannikov, A.K.; Konorov, I.; Konstantinov, V.F.; Korentchenko, A.S.; Korzenev, A.; Kotzinian, A.M.; Koutchinski, N.A.; Kouznetsov, O.; Kowalik, K.; Kramer, D.; Kravchuk, N.P.; Krivokhizhin, G.V.; Kroumchtein, Z.V.; Kubart, J.; Kuhn, R.; Kukhtin, V.; Kunne, F.; Kurek, K.; Kuzmin, N.A.; Lamanna, M.; Le Goff, J.M.; Leberig, M.; Lednev, A.A.; Lehmann, A.; Levinski, V.; Levorato, S.; Lyashenko, V.I; Lichtenstadt, J.; Liska, T.; Ludwig, I.; Maggiora, A.; Maggiora, M.; Magnon, A.; Mallot, G.K.; Mann, A.; Manuilov, I.V.; Marchand, C.; Marroncle, J.; Martin, A.; Marzec, J.; Masek, L.; Massmann, F.; Matsuda, T.; Matthia, D.; Maximov, A.N.; Menon, G.; Meyer, W.; Mielech, A.; Mikhailov, Yu.V.; Moinester, M.A.; Molinie, F.; Mota, F.; Mutter, A.; Nagel, T.; Nahle, O.; Nassalski, J.; Neliba, S.; Nerling, F.; Neyret, D.; Niebuhr, M.; Niinikoski, T.; Nikolaenko, V.I.; Nozdrin, A.A.; Olshevsky, A.G.; Ostrick, M.; Padee, A.; Pagano, P.; Panebianco, S.; Parsamyan, B.; Panzieri, D.; Paul, S.; Pawlukiewicz, B.; Pereira, H.; Peshekhonov, D.V.; Peshekhonov, V.D.; Piedigrossi, D.; Piragino, G.; Platchkov, S.; Platzer, K.; Pochodzalla, J.; Polak, J.; Polyakov, V.A.; Pontecorvo, G.; Popov, A.A.; Pretz, J.; Procureur, S.; Quintans, C.; Rajotte, J.-F.; Ramos, S.; Razaq, I.; Rebourgeard, P.; Reggiani, D.; Reicherz, G.; Richter, A.; Robinet, F.; Rocco, E.; Rondio, E.; Ropelewski, L.; Rousse, J.Y.; Rozhdestvensky, A.M.; Ryabchikov, D.; Samartsev, A.G.; Samoylenko, V.D.; Sandacz, A.; Merce, M.Sans; Santos, H.; Sapozhnikov, M.G.; Sauli, F.; Savin, Igor A.; Schiavon, P.; Schill, C.; Schmidt, T.; Schmitt, H.; Schmitt, L.; Schonmeier, P.; Schroeder, W.; Seeharsch, D.; Seimetz, M.; Setter, D.; Shaligin, A.; Shevchenko, O.Yu.; Shishkin, A.A.; Siebert, H.-W.; Silva, L.; Simon, F.; Sinha, L.; Sissakian, A.N.; Slunecka, M.; Smirnov, G.I.; Sora, D.; Sosio, S.; Sozzi, F.; Srnka, A.; Stinzing, F.; Stolarski, M.; Sugonyaev, V.P.; Sulc, M.; Sulej, R.; Tarte, G.; Takabayashi, N.; Tchalishev, V.V.; Tessaro, S.; Tessarotto, F.; Teufel, A.; Thers, D.; Tkatchev, L.G.; Toeda, T.; Tokmenin, V.V.; Trippel, S.; Urban, J.; Valbuena, R.; Venugopal, G.; Virius, M.; Vlassov, N.V.; Vossen, A.; Wagner, M.; Webb, R.; Weise, E.; Weitzel, Q.; Wiedner, U.; Wiesmann, M.; Windmolders, R.; Wirth, S.; Wislicki, W.; Wollny, H.; Zanetti, A.M.; Zaremba, K.; Zavertyaev, M.; Zhao, J.; Ziegler, R.; Ziembicki, M.; Zlobin, Y.L.; Zvyagin, A.

2007-01-01T23:59:59.000Z

450

Rationalization of EPR Coincidence Experiments  

E-Print Network [OSTI]

Coincidence experiments on EPR pairs show strong violations of Bell's Inequalities at certain filter settings which is widely believed to mean that local hidden variable models cannot explain these results. In this paper it is shown that the 'non-separable' singlet density matrix can be represented as a sum of separable density matrices which are products of individual non-hermitian spin operator states. This decomposition is consistent with the intuitive notion that after separation from the singlet the two physical systems should be described by a product state. In spite of the non-hermiticity, the values of the relevant spin observables are real. A new local hidden variable model inspired by this decomposition is discussed.

B. C. Sanctuary

2007-10-10T23:59:59.000Z

451

Summarizing my DHS Internship Experience  

SciTech Connect (OSTI)

In this paper, the author addresses four main topics: (1) A description of the topic of his internship at the U.S. Department of Homeland Security; (2) A description of his contributions to the project; (3) A discussion of research directions beneficial to the Department of Homeland Security (DHS); and (4) A discussion of the impact the internship experience had on his career aspirations. He feels the first three points can best be addressed using the contents of a paper his mentor, Dr. Tina Eliassi-Rad, and he have published based on their work this summer [Roberts and Eliassi-Rad, 2006]. Sections 2 - 5 are intended for this purpose and have been excerpted from that paper. He concludes this paper in Section 6 with a discussion of the fourth point.

Roberts, D L

2006-09-06T23:59:59.000Z

452

Flatback airfoil wind tunnel experiment.  

SciTech Connect (OSTI)

A computational fluid dynamics study of thick wind turbine section shapes in the test section of the UC Davis wind tunnel at a chord Reynolds number of one million is presented. The goals of this study are to validate standard wind tunnel wall corrections for high solid blockage conditions and to reaffirm the favorable effect of a blunt trailing edge or flatback on the performance characteristics of a representative thick airfoil shape prior to building the wind tunnel models and conducting the experiment. The numerical simulations prove the standard wind tunnel corrections to be largely valid for the proposed test of 40% maximum thickness to chord ratio airfoils at a solid blockage ratio of 10%. Comparison of the computed lift characteristics of a sharp trailing edge baseline airfoil and derived flatback airfoils reaffirms the earlier observed trend of reduced sensitivity to surface contamination with increasing trailing edge thickness.

Mayda, Edward A. (University of California, Davis, CA); van Dam, C.P. (University of California, Davis, CA); Chao, David D. (University of California, Davis, CA); Berg, Dale E.

2008-04-01T23:59:59.000Z

453

Maintenance requirements and efficiency of energy use for gain in dry, non-pregnant mature cows of five breeds and their crosses  

E-Print Network [OSTI]

addressed by Garrett (1971) who reported Hereford steers to have a 5() lower daily feed requirement for maintenance and a 20)) higher efficiency in converting f ed energy into protein and fat than '. )olst. in steers. Howev r, beef and dairy animals had... for Gain in Dry, Non-Pregnant Nature Cows of Five Breeds and Their Crosses (August 1984) Juan Carlos Solis, B. S. , Iowa State University Chairman of Advisory Committee: Dr. F. M. Byers Dry, non ? pregnant, mature cows ()10 y) of 5 breed types (Angus...

Solis, Juan Carlos

1984-01-01T23:59:59.000Z

454

Interactive portraiture : designing intimate interactive experiences  

E-Print Network [OSTI]

In this thesis I present a set of interactive portrait experiences that strive to create an intimate connection between the viewer and the portrayed subject; an emotional experience, one of personal reflection. My interactive ...

Zuckerman, Orit

2006-01-01T23:59:59.000Z

455

Suspended sediment erosion in laboratory flume experiments  

E-Print Network [OSTI]

Laboratory flume experiments are used to examine the role of suspended sediment abrasion in bedrock channel erosion. A range of topographies was used, from a planar bed to a sinuous and scalloped inner channel. Experiments ...

Cornell, Katrina Muir

2007-01-01T23:59:59.000Z

456

Infusing Real World Experiences into ENGINEERING  

E-Print Network [OSTI]

Infusing Real World Experiences into ENGINEERING EDUCATION #12;This project is a collaboration with the authors and NAE. #12;Infusing Real World Experiences into Engineering Education 2012 #12;2 Preface The aim

Napier, Terrence

457

Building Knowledge through Families of Experiments  

E-Print Network [OSTI]

Building Knowledge through Families of Experiments Victor R. Basili, Fellow, IEEE, Forrest Shull, and build models that represent the common observations about the discipline. This paper discusses building knowledge in an incremental manner through the replication of experiments within families

Basili, Victor R.

458

Proposal for PLASMA LENS EXPERIMENT AT  

E-Print Network [OSTI]

Proposal for PLASMA LENS EXPERIMENT AT THE FINAL FOCUS TEST BEAM April 1, 1997 THE PLASMA LENS.....................................................................................3 1.1 Plasma Focusing ......................................................................3 1.2 Previous Plasma Lens Experiments.................................................4 1.3 Plasma Lens

459

Status of the MAJORANA DEMONSTRATOR experiment  

SciTech Connect (OSTI)

The MAJORANA DEMONSTRATOR neutrinoless double beta-decay experiment is currently under construction at the Sanford Underground Research Facility in South Dakota, USA. An overview and status of the experiment are given.

Martin, R. D. [Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA and Department of Physics, University of South Dakota, Vermillion, SD (United States); Abgrall, N.; Chan, Y-D.; Hegai, A.; Mertens, S.; Poon, A. W. P.; Vetter, K. [Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA (United States); Aguayo, E.; Fast, J. E.; Hoppe, E. W.; Kouzes, R. T.; LaFerriere, B. D.; Orrell, J. L.; Overman, N. R.; Soin, A. [Pacific Northwest National Laboratory, Richland, WA (United States); Avignone III, F. T. [Department of Physics and Astronomy, University of South Carolina, Columbia, SC, USA and Oak Ridge National Laboratory, Oak Ridge, TN (United States); Barabash, A. S.; Konovalov, S. I.; Yumatov, V. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bertrand, F. E. [Oak Ridge National Laboratory, Oak Ridge, TN (United States); and others

2014-06-24T23:59:59.000Z

460

The INEL beryllium multiplication experiment  

SciTech Connect (OSTI)

The experiment to measure the multiplication of 14-MeV neutrons in bulk beryllium has been completed. The experiment consists of determining the ratio of {sup 56}Mn activities induced in a large manganese bath by a central 14-MeV neutron source, with and without a beryllium sample surrounding the source. In the manganese bath method a neutron source is placed at the center of a totally-absorbing aqueous solution of MnSo{sub 4}. The capture of neutrons by Mn produces a {sup 56}Mn activity proportional to the emission rate of the source. As applied to the measurement of the multiplication of 14- MeV neutrons in bulk beryllium, the neutron source is a tritium target placed at the end of the drift tube of a small deuteron accelerator. Surrounding the source is a sample chamber. When the sample chamber is empty, the neutrons go directly to the surrounding MnSO{sub 4} solution, and produce a {sup 56}Mn activity proportional to the neutron emission rate. When the chamber contains a beryllium sample, the neutrons first enter the beryllium and multiply through the (n,2n) process. Neutrons escaping from the beryllium enter the bath and produce a {sup 56}Mn activity proportional to the neutron emission rate multiplied by the effective value of the multiplication in bulk beryllium. The ratio of the activities with and without the sample present is proportional to the multiplication value. Detailed calculations of the multiplication and all the systematic effects were made with the Monte Carlo program MCNP, utilizing both the Young and Stewart and the ENDF/B-VI evaluations for beryllium. Both data sets produce multiplication values that are in excellent agreement with the measurements for both raw and corrected values of the multiplication. We conclude that there is not real discrepancy between experimental and calculated values for the multiplication of neutrons in bulk beryllium. 12 figs., 11 tabs., 18 refs.

Smith, J.R.; King, J.J.

1991-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "gain hands-on experience" 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

SOURCE PHENOMENOLOGY EXPERIMENTS IN ARIZONA  

SciTech Connect (OSTI)

The Arizona Source Phenomenology Experiments (SPE) have resulted in an important dataset for the nuclear monitoring community. The 19 dedicated single-fired explosions and multiple delay-fired mining explosions were recorded by one of the most densely instrumented accelerometer and seismometer arrays ever fielded, and the data have already proven useful in quantifying confinement and excitation effects for the sources. It is very interesting to note that we have observed differences in the phenomenology of these two series of explosions resulting from the differences between the relatively slow (limestone) and fast (granodiorite) media. We observed differences at the two SPE sites in the way the rock failed during the explosions, how the S-waves were generated, and the amplitude behavior as a function of confinement. Our consortium's goal is to use the synergy of the multiple datasets collected during this experiment to unravel the phenomenological differences between the two emplacement media. The data suggest that the main difference between single-fired chemical and delay-fired mining explosion seismograms at regional distances is the increased surface wave energy for the latter source type. The effect of the delay-firing is to decrease the high-frequency P-wave amplitudes while increasing the surface wave energy because of the longer source duration and spall components. The results suggest that the single-fired explosions are surrogates for nuclear explosions in higher frequency bands (e.g., 6-8 Hz Pg/Lg discriminants). We have shown that the SPE shots, together with the mining explosions, are efficient sources of S-wave energy, and our next research stage is to postulate the possible sources contributing to the shear-wave energy.

Jessie L. Bonner; Brian Stump; Mark Leidig; Heather Hooper; Xiaoning (David) Yang; Rongmao Zhou; Tae Sung Kim; William R. Walter; Aaron Velasco; Chris Hayward; Diane Baker; C. L. Edwards; Steven Harder; Travis Glenn; Cleat Zeiler; James Britton; James F. Lewkowicz

2005-09-30T23:59:59.000Z

462

Current experiments in elementary particle physics. Revision  

SciTech Connect (OSTI)

This report contains summaries of 568 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1988 are excluded. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, INS (Tokyo), ITEP (Moscow), IUCF (Bloomington), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

Galic, H. [Stanford Linear Accelerator Center, Menlo Park, CA (United States); Armstrong, F.E. [Lawrence Berkeley Lab., CA (United States); von Przewoski, B. [Indiana Univ. Cyclotron Facility, Bloomington, IN (United States)] [and others

1994-08-01T23:59:59.000Z

463

Lorentz Symmetry, the SME, and Gravitational Experiments  

E-Print Network [OSTI]

This proceedings contribution summarizes the implications of recent SME-based investigations of Lorentz violation for gravitational experiments.

Jay D. Tasson

2012-12-10T23:59:59.000Z

464

Lorentz Symmetry, the SME, and Gravitational Experiments  

E-Print Network [OSTI]

This proceedings contribution summarizes the implications of recent SME-based investigations of Lorentz violation for gravitational experiments.

Tasson, Jay D

2012-01-01T23:59:59.000Z

465

NOvA Experiment - The Local Community  

ScienceCinema (OSTI)

Local proprietors Steve and Deb Wieber discuss the impact of the NOvA experiment on their community.

Deb Wieber

2010-01-08T23:59:59.000Z

466

NOvA Experiment - The Local Community  

SciTech Connect (OSTI)

Local proprietors Steve and Deb Wieber discuss the impact of the NOvA experiment on their community.

Deb Wieber

2009-05-14T23:59:59.000Z

467

Experiments with Branching using General Disjunctions  

E-Print Network [OSTI]

5 Acknowledgement. The computational experiments were undertaken on a cluster provided by High Performance Com- puting at Lehigh University. CPLEX

2008-09-17T23:59:59.000Z

468

Experiments with MASS A. Tokovinin, V. Kornilov  

E-Print Network [OSTI]

in the Turbina program, and these data were analyzed subsequently in great detail. After finishing the experiment

Tokovinin, Andrei A.

469

Education Grants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

communities. Students solved energy problems through hands-on investigations with wind power, hydroelectric power, and solar energy. They gained new understanding and insight...

470

Janus Experiments: Data from Mouse Irradiation Experiments 1972 - 1989  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Janus Experiments, carried out at Argonne National Laboratory from 1972 to 1989 and supported by grants from the US Department of Energy, investigated the effects of neutron and gamma radiation on mouse tissues primarily from B6CF1 mice. 49,000 mice were irradiated: Death records were recorded for 42,000 mice; gross pathologies were recorded for 39,000 mice; and paraffin embedded tissues were preserved for most mice. Mouse record details type and source of radiation [gamma, neutrons]; dose and dose rate [including life span irradiation]; type and presence/absence of radioprotector treatment; tissue/animal morphology and pathology. Protracted low dose rate treatments, short term higher dose rate treatments, variable dose rates with a same total dose, etc. in some cases in conjunction with radioprotectors, were administered. Normal tissues, tumors, metastases were preserved. Standard tissues saved were : lung, liver, spleen, kidney, heart, any with gross lesions (including mammary glands, Harderian gland with eye, adrenal gland, gut, ovaries or testes, brain and pituitary, bone). Data are searchable and specimens can be obtained by request.

471

Review of International Experience with Renewable Energy Obligation Support Mechanisms  

SciTech Connect (OSTI)

The main policy instruments currently used in the EU Member States to achieve the targets set for electricity produced from renewable energy sources are: (1) the quota obligation system; (2) the feed-in tariff system; and (3) the tendering system. The current study aims to review the experience gained with the quota obligation system. The report provides an overview of the regions where obligation systems have been implemented and contains a detailed evaluation of the performance of the obligation systems in the USA, the UK and in Sweden. The obligation systems in these countries have been evaluated based on the following criteria: Effectiveness; Market efficiency; Certainty for the renewable energy industry; Cost effectiveness; Stakeholder support for the obligation system; and Equity. The evaluation of international experiences with the obligation system gives rise to a mixed picture. Although an obligation in theory is effective and cost effective, it seems too early to conclude that the system delivers these promises in practice. On the one hand this is due to the limited period of implementation that makes it hard to distinguish between the direct effect of the system and some teething problems that will be solved in due time. On the other hand, the conclusion can be drawn that the obligation is a complex system, which will only function well if designed carefully. It does seem worthwhile, however, to continue monitoring the experiences with the obligation system abroad, because this will further reveal whether the system is indeed effective and cost effective in practice. In the longer term, e.g. beyond 2010, the introduction of an obligation system in the Netherlands could be considered. Finally, as the design of support schemes is being improved, it appears that the basic concepts of both the obligation system and the feed in system have been refined in such a way that the two systems are gradually converging. An important difference between the two systems however remains, namely that an obligation system relies more on market forces whereas the feed-in system is based on a greater involvement of the government.

Wiser, R.

2005-06-01T23:59:59.000Z

472

Today and Future Neutrino Experiments at Krasnoyarsk Nuclear Reactor  

E-Print Network [OSTI]

The results of undergoing experiments and new experiment propositions at Krasnoyarsk underground nuclear reactor are presented

Yu. V. Kozlov; S. V. Khalturtsev; I. N. Machulin; A. V. Martemyanov; V. P. Martemyanov; A. A. Sabelnikov; V. G. Tarasenkov; E. V. Turbin; V. N. Vyrodov; L. A. Popeko; A. V. Cherny; G. A. Shishkina

1999-12-22T23:59:59.000Z

473

AGS experiments -- 1991, 1992, 1993. Tenth edition  

SciTech Connect (OSTI)

This report contains: (1) FY 1993 AGS schedule as run; (2) FY 1994--95 AGS schedule; (3) AGS experiments {ge} FY 1993 (as of 30 March 1994); (4) AGS beams 1993; (5) AGS experimental area FY 1991 physics program; (6) AGS experimental area FY 1992 physics program; (7) AGS experimental area FY 1993 physics program; (8) AGS experimental area FY 1994 physics program (planned); (9) a listing of experiments by number; (10) two-page summaries of each experiment; (11) listing of publications of AGS experiments; and (12) listing of AGS experiments.

Depken, J.C.

1994-04-01T23:59:59.000Z

474

Shock recovery experiments: An assessment  

SciTech Connect (OSTI)

Systematic shock recovery experiments, in which microstructural and mechanical property effects are characterized quantitatively, constitute an important means of increasing our understanding of shock processes. Through studies of the effects of variations in metallurgical and shock loading parameters on structure/property relationships, the micromechanisms of shock deformation, and how they differ from conventional strain rate processes, are beginning to emerge. This paper will highlight the state-of-the-art in shock recovery of metallic and ceramic materials. Techniques will be described which are utilized to ''soft'' recover shock-loaded metallic samples possessing low residual strain; crucial to accurate ''post-mortem'' metallurgical investigations of the influence of shock loading on material behavior. Illustrations of the influence of shock assembly design on the structure/property relationships in shock-recovered copper samples including such issues as residual strain and contact stresses, and their consequences are discussed. Shock recovery techniques used on brittle materials will be reviewed and discussed in light of recent experimental results. Finally, shock recovery structure/property results and VISAR data on the /alpha/--/omega/ shock-induced phase transition in titanium will be used to illustrate the beneficial link between shock recovery and ''real-time'' shock data. 26 refs., 3 figs.

Gray, G.T. III

1989-01-01T23:59:59.000Z

475

Central Equatorial Pacific Experiment (CEPEX)  

SciTech Connect (OSTI)

The Earth's climate has varied significantly in the past, yet climate records reveal that in the tropics, sea surface temperatures seem to have been remarkably stable, varying by less than a few degrees Celsius over geologic time. Today, the large warm pool of the western Pacific shows similar characteristics. Its surface temperature always exceeds 27[degree]C, but never 31[degree]C. Heightened interest in this observation has been stimulated by questions of global climate change and the exploration of stabilizing climate feedback processes. Efforts to understand the observed weak sensitivity of tropical sea surface temperatures to climate forcing has led to a number of competing ideas about the nature of this apparent thermostat. Although there remains disagreement on the processes that regulate tropical sea surface temperature, most agree that further progress in resolving these differences requires comprehensive field observations of three-dimensional water vapor concentrations, solar and infrared radiative fluxes, surface fluxes of heat and water vapor, and cloud microphysical properties. This document describes the Central Equatorial Pacific Experiment (CEPEX) plan to collect such observations over the central equatorial Pacific Ocean during March of 1993.

Not Available

1993-01-01T23:59:59.000Z

476

A Unique Summer Experience at NNSA's Annual MSI Program | National  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHeResearch StochasticAA Tribute toNuclear

477

10 MeV/u experiments at RIA  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-on halloweenReliable solar:2 OF 11 DOCUMENT #:1111119

478

Deuterium accelerator experiments for APT.  

SciTech Connect (OSTI)

Sandia National Laboratories in California initiated an experimental program to determine whether tritium retention in the tube walls and permeation through the tubes into the surrounding coolant water would be a problem for the Accelerator Production of Tritium (APT), and to find ways to mitigate the problem, if it existed. Significant holdup in the tube walls would limit the ability of APT to meet its production goals, and high levels of permeation would require a costly cleanup system for the cooling water. To simulate tritium implantation, a 200 keV accelerator was used to implant deuterium into Al 6061-T and SS3 16L samples at temperatures and particle fluxes appropriate for APT, for times varying between one week and five months. The implanted samples were characterized to determine the deuterium retention and Permeation. During the implantation, the D(d,p)T nuclear reaction was used to monitor the build-up of deuterium in the implant region of the samples. These experiments increased in sophistication, from mono-energetic deuteron implants to multi-energetic deuteron and proton implants, to more accurately reproduce the conditions expected in APT. Micron-thick copper, nickel, and anodized aluminum coatings were applied to the front surface of the samples (inside of the APT walls) in an attempt to lower retention and permeation. The reduction in both retention and permeation produced by the nickel coatings, and the ability to apply them to the inside of the APT tubes, indicate that both nickel-coated Al 6061-T6 and nickel-coated SS3 16L tubes would be effective for use in APT. The results of this work were submitted to the Accelerator Production of Tritium project in document number TPO-E29-Z-TNS-X-00050, APT-MP-01-17.

Causey, Rion A. (Sandia National Laboratories, Livermore, CA); Hertz, Kristin L. (Sandia National Laboratories, Livermore, CA); Cowgill, Donald F. (Sandia National Laboratories, Livermore, CA)

2005-08-01T23:59:59.000Z

479

Romanian experience on packaging testing  

SciTech Connect (OSTI)

With more than twenty years ago, the Institute for Nuclear Research Pitesti (INR), through its Reliability and Testing Laboratory, was licensed by the Romanian Nuclear Regulatory Body- CNCAN and to carry out qualification tests [1] for packages intended to be used for the transport and storage of radioactive materials. Radioactive materials, generated by Romanian nuclear facilities [2] are packaged in accordance with national [3] and the IAEA's Regulations [1,6] for a safe transport to the disposal center. Subjecting these packages to the normal and simulating test conditions accomplish the evaluation and certification in order to prove the package technical performances. The paper describes the qualification tests for type A and B packages used for transport and storage of radioactive materials, during a period of 20 years of experience. Testing is used to substantiate assumption in analytical models and to demonstrate package structural response. The Romanian test facilities [1,3,6] are used to simulate the required qualification tests and have been developed at INR Pitesti, the main supplier of type A packages used for transport and storage of low radioactive wastes in Romania. The testing programme will continue to be a strong option to support future package development, to perform a broad range of verification and certification tests on radioactive material packages or component sections, such as packages used for transport of radioactive sources to be used for industrial or medical purposes [2,8]. The paper describes and contain illustrations showing some of the various tests packages which have been performed during certain periods and how they relate to normal conditions and minor mishaps during transport. Quality assurance and quality controls measures taken in order to meet technical specification provided by the design there are also presented and commented. (authors)

Vieru, G. [IAEA Technical Expert, Head, Reliability and Testing Lab., Institute for Nuclear Research (Romania)

2007-07-01T23:59:59.000Z

480

Cygnus Performance in Subcritical Experiments  

SciTech Connect (OSTI)

The Cygnus Dual Beam Radiographic Facility consists of two identical radiographic sources with the following specifications: 4-rad dose at 1 m, 1-mm spot size, 50-ns pulse length, 2.25-MeV endpoint energy. The facility is located in an underground tunnel complex at the Nevada Test Site. Here SubCritical Experiments (SCEs) are performed to study the dynamic properties of plutonium. The Cygnus sources were developed as a primary diagnostic for these tests. Since SCEs are single-shot, high-value events - reliability and reproducibility are key issues. Enhanced reliability involves minimization of failure modes through design, inspection, and testing. Many unique hardware and operational features were incorporated into Cygnus to insure reliability. Enhanced reproducibility involves normalization of shot-to-shot output also through design, inspection, and testing. The first SCE to utilize Cygnus, Armando, was executed on May 25, 2004. A year later, April - May 2005, calibrations using a plutonium step wedge were performed. The results from this series were used for more precise interpretation of the Armando data. In the period February - May 2007 Cygnus was fielded on Thermos, which is a series of small-sample plutonium shots using a one-dimensional geometry. Pulsed power research generally dictates frequent change in hardware configuration. Conversely, SCE applications have typically required constant machine settings. Therefore, while operating during the past four years we have accumulated a large database for evaluation of machine performance under highly consistent operating conditions. Through analysis of this database Cygnus reliability and reproducibility on Armando, Step Wedge, and Thermos is presented.

G. Corrow, M. Hansen, D. Henderson, S. Lutz, C. Mitton, et al.

2008-02-01T23:59:59.000Z

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


481

Current Experiments in Particle Physics (September 1996)  

SciTech Connect (OSTI)

This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries. This report contains full summaries of 180 approved current and recent experiments in elementary particle physics. The focus of the report is on selected experiments which directly contribute to our better understanding of elementary particles and their properties such as masses, widths or lifetimes, and branching fractions.

Galic, H.; Lehar, F.; Klyukhin, V.I.; Ryabov, Yu.G.; Bilak, S.V.; Illarionova, N.S.; Khachaturov, B.A.; Strokovsky, E.A.; Hoffman, C.M.; Kettle, P.-R.; Olin, A.; Armstrong, F.E.

1996-09-01T23:59:59.000Z

482

The BigBoss Experiment  

SciTech Connect (OSTI)

BigBOSS is a Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with a wide-area galaxy and quasar redshift survey over 14,000 square degrees. It has been conditionally accepted by NOAO in response to a call for major new instrumentation and a high-impact science program for the 4-m Mayall telescope at Kitt Peak. The BigBOSS instrument is a robotically-actuated, fiber-fed spectrograph capable of taking 5000 simultaneous spectra over a wavelength range from 340 nm to 1060 nm, with a resolution R = {lambda}/{Delta}{lambda} = 3000-4800. Using data from imaging surveys that are already underway, spectroscopic targets are selected that trace the underlying dark matter distribution. In particular, targets include luminous red galaxies (LRGs) up to z = 1.0, extending the BOSS LRG survey in both redshift and survey area. To probe the universe out to even higher redshift, BigBOSS will target bright [OII] emission line galaxies (ELGs) up to z = 1.7. In total, 20 million galaxy redshifts are obtained to measure the BAO feature, trace the matter power spectrum at smaller scales, and detect redshift space distortions. BigBOSS will provide additional constraints on early dark energy and on the curvature of the universe by measuring the Ly-alpha forest in the spectra of over 600,000 2.2 < z < 3.5 quasars. BigBOSS galaxy BAO measurements combined with an analysis of the broadband power, including the Ly-alpha forest in BigBOSS quasar spectra, achieves a FOM of 395 with Planck plus Stage III priors. This FOM is based on conservative assumptions for the analysis of broad band power (k{sub max} = 0.15), and could grow to over 600 if current work allows us to push the analysis to higher wave numbers (k{sub max} = 0.3). BigBOSS will also place constraints on theories of modified gravity and inflation, and will measure the sum of neutrino masses to 0.024 eV accuracy.

Schelgel, D.; Abdalla, F.; Abraham, T.; Ahn, C.; Allende Prieto, C.; Annis, J.; Aubourg, E.; Azzaro, M.; Bailey, S.; Baltay, C.; Baugh, C.; Bebek, C.; Becerril, S.; Blanton, M.; Bolton, A.; Bromley, B.; Cahn, R.; Carton, P.-H.; Cervanted-Cota, J.L.; Chu, Y.; Cortes, M.; /APC, Paris /Brookhaven /IRFU, Saclay /Marseille, CPPM /Marseille, CPT /Durham U. / /IEU, Seoul /Fermilab /IAA, Granada /IAC, La Laguna / /IAC, Mexico / / /Madrid, IFT /Marseille, Lab. Astrophys. / / /New York U. /Valencia U.

2012-06-07T23:59:59.000Z

483

If you are looking for real-world experience in a fast-paced innovative environment then come join us in the Medtech Furnace, an incubator for medtech companies partnered with BSU. We are solving a massive problem in heart health by  

E-Print Network [OSTI]

a massive problem in heart health by developing a novel robotic medical device and are looking of the heart. This internship will offer an excellent opportunity to gain real world experience in the fields on the diagnostics, prevention, and treatment of heart disease specifically atrial fibrillation. This project

Barrash, Warren

484

Ultrahigh-sensitivity high-linearity photodetection system using a low-gain avalanche photodiode with an ultralow-noise readout circuit  

E-Print Network [OSTI]

A highly sensitive photodetection system with a detection limit of 1 photon/s was developed. This system uses a commercially available 200-mm-diameter silicon avalanche photodiode (APD) and an in-house-developed ultralow-noise readout circuit, which are both cooled to 77 K. When the APD operates at a low gain of about 10, it has a high-linearity response to the number of incident photons and a low excess noise factor. The APD also has high quantum efficiency and a dark current of less than 1 e/s at 77 K. This photodetection system will shorten the measurement time and enable higher spatial and wavelength resolution for near-field scanning optical microscopes.

Makoto Akiba; Mikio Fujiwara; Masahide Sasaki

2005-03-04T23:59:59.000Z

485

The Effect of Student Learning Styles on the Learning Gains Achieved When Interactive Simulations Are Coupled with Real-Time Formative Assessment via Pen-Enabled Mobile Technology  

E-Print Network [OSTI]

This paper describes results from a project in an undergraduate engineering physics course that coupled classroom use of interactive computer simulations with the collection of real-time formative assessment using pen-enabled mobile technology. Interactive simulations (free or textbook-based) are widely used across the undergraduate science and engineering curriculia to help actively engaged students increase their understanding of abstract concepts or phenomena which are not directly or easily observable. However, there are indications in the literature that we do not yet know the pedagogical best practices associated with their use to maximize learning. This project couples student use of interactive simulations with the gathering of real-time formative assessment via pen-enabled mobile technology (in this case, Tablet PCs). The research question addressed in this paper is: are learning gains achieved with this coupled model greater for certain types of learners in undergraduate STEM classrooms? To answer t...

Kowalski, F V

2013-01-01T23:59:59.000Z

486

Current experiments in elementary particle physics  

SciTech Connect (OSTI)

This report contains summaries of 720 recent and current experiments in elementary particle physics (experiments that finished taking data before 1980 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Moscow Institute of Theoretical and Experimental Physics, Tokyo Institute of Nuclear Studies, KEK, LAMPF, Leningrad Nuclear Physics Institute, Saclay, Serpukhov, SIN, SLAC, and TRIUMF, and also experiments on proton decay. Instructions are given for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

Wohl, C.G.; Armstrong, F.E., Oyanagi, Y.; Dodder, D.C.; Ryabov, Yu.G.; Frosch, R.; Olin, A.; Lehar, F.; Moskalev, A.N.; Barkov, B.P.

1987-03-01T23:59:59.000Z

487

Current experiments in elementary particle physics  

SciTech Connect (OSTI)

This report contains summaries of 736 current and recent experiments in elementary particle physics (experiments that finished taking data before 1982 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, Joint Institute for Nuclear Research (Dubna), KEK, LAMPF, Novosibirsk, PSI/SIN, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground experiments. Also given are instructions for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

Wohl, C.G.; Armstrong, F.E.; Trippe, T.G.; Yost, G.P. (Lawrence Berkeley Lab., CA (USA)); Oyanagi, Y. (Tsukuba Univ., Ibaraki (Japan)); Dodder, D.C. (Los Alamos National Lab., NM (USA)); Ryabov, Yu.G.; Slabospitsky, S.R. (Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Serpukhov (USSR). Inst. Fiziki Vysokikh Ehnergij); Frosch, R. (Swiss Inst. for Nuclear Research, Villigen (Switzerla

1989-09-01T23:59:59.000Z

488

Current experiments in elementary particle physics. Revised  

SciTech Connect (OSTI)

This report contains summaries of 584 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1986 are excluded. Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, KEK, LAMPF, Novosibirsk, Paul Scherrer Institut (PSI), Saclay, Serpukhov, SLAC, SSCL, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

Galic, H. [Stanford Univ., CA (United States). Stanford Linear Accelerator Center; Wohl, C.G.; Armstrong, B. [Lawrence Berkeley Lab., CA (United States); Dodder, D.C. [Los Alamos National Lab., NM (United States); Klyukhin, V.I.; Ryabov, Yu.G. [Inst. for High Energy Physics, Serpukhov (Russian Federation); Illarionova, N.S. [Inst. of Theoretical and Experimental Physics, Moscow (Russian Federation); Lehar, F. [CEN Saclay, Gif-sur-Yvette (France); Oyanagi, Y. [Univ. of Tokyo (Japan). Faculty of Sciences; Olin, A. [TRIUMF, Vancouver, BC (Canada); Frosch, R. [Paul Scherrer Inst., Villigen (Switzerland)

1992-06-01T23:59:59.000Z

489

Operating Experience Summary, 2013-03  

Broader source: Energy.gov (indexed) [DOE]

Investigation: Contamination at Los Alamos Neutron Science Center Due to Deficiencies in Conduct of Operations ...5 Page 1 Page 5 Page 1 of 12 Operating Experience Summary...

490

International Collaborations on Engineered Barrier Systems: Experiment...  

Broader source: Energy.gov (indexed) [DOE]

interaction to evaluate sealing and clay barrier performance; 2) EBS Experiment -thermo-hydro-mechanical-chemical (THMC) behavior of the EBS under heating conditions and...

491

Review of double beta decay experiments  

E-Print Network [OSTI]

The brief review of current experiments on search and studying of double beta decay processes is done. Best present limits on $\\langle m_{\

A. S. Barabash

2014-03-12T23:59:59.000Z

492

Review of double beta decay experiments  

E-Print Network [OSTI]

The brief review of current experiments on search and studying of double beta decay processes is done. Best present limits on $\\langle m_{\

Barabash, A S

2014-01-01T23:59:59.000Z

493

Playing games with EPR-type experiments  

E-Print Network [OSTI]

An approach towards quantum games is proposed that uses the unusual probabilities involved in EPR-type experiments directly in two-player games.

Azhar Iqbal

2005-07-17T23:59:59.000Z

494

Recent Results From The Daya Bay Experiment  

E-Print Network [OSTI]

The Daya Bay reactor neutrino experiment has observed the disappearance of electron antineutrinos from nuclear reactors at $\\sim$kilometer baselines. The relative measurement of the $\\bar\

Chao Zhang; for the Daya Bay Collaboration

2015-01-20T23:59:59.000Z

495

Recent Results From The Daya Bay Experiment  

E-Print Network [OSTI]

The Daya Bay reactor neutrino experiment has observed the disappearance of electron antineutrinos from nuclear reactors at $\\sim$kilometer baselines. The relative measurement of the $\\bar\

Zhang, Chao

2015-01-01T23:59:59.000Z

496

The Cavendish Experiment in General Relativity  

E-Print Network [OSTI]

Solutions of Einstein's equations are discussed in which the ``gravitational force" is balanced by an electrical force, and which can serve as models for the Cavendish experiment.

Dieter R. Brill

1997-09-24T23:59:59.000Z

497

State Experience in Hydrogen Infrastructure in California  

Broader source: Energy.gov (indexed) [DOE]

Experience in Hydrogen Infrastructure in California Gerhard H Achtelik Jr. February 17, 2011 Hydrogen Infrastructure Market Readiness Workshop California Environmental Protection...

498

INTERPRETATION OF A HYDRAULIC FRACTURING EXPERIMENT, MONTICELLO, SOUTH CAROLINA  

E-Print Network [OSTI]

Letters INTERPRETATION OF A HYDRAULIC FRACTURING EXPERIMENT,12091 INTERPRETATION OF A HYDRAULIC FRACTURING EXPERIMENT,transient data from a hydraulic fracturing experiment have

Narasimhan, T.N.

2014-01-01T23:59:59.000Z

499

Welfare gains from financial liberalization  

E-Print Network [OSTI]

Financial liberalization has been a controversial issue, as empirical evidence for growth enhancing

Townsend, Robert

500

Adaptive gain improves reactor control  

SciTech Connect (OSTI)

An interesting application of the modern control theory technique called adaptive control is presently in use on a process located at a plant in the Standard Oil Co. (Ind.) system. The results of this application are: first, the transformation of an uncontrollable process to a controllable one; and, second, a significant economic savings to the corporation. It also shows that a detailed analysis of the mechanical, chemical and control systems can provide both the basis for revising an existing control system and some of the reasons why that system is inadequate. The contrast between classical and modern control theories is seen in four major areas. In classical systems, the controller manipulates the error to calculate its output. The error is subjected to a limited number of analog computing functions such as multiplication by a constant and integration. Each controller has one specific strategy--to hold the measured variable at the setpoint. And each controller controls only one variable, independent of all others. In a modern system, the controller can manipulate many different variables in addition to the error to compute its output. Its computing power is unlimited in a practical sense. It can do all classical computations plus many others, including a table look-up. The controller can independently change its strategy as a function of time or the condition of the process. It can also control many variables at one time to accomplish a complex objective. The implementation of a modern control theory project requires a good understanding of the dynamic, as well as the steady-state character of the process. As you can see we are limited only by our understanding of the process, our imagination, and the economics of the situation.

Whatley, M.J.; Pott, D.C.

1984-05-01T23:59:59.000Z