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


1

Nontoxic quantum dot research improves solar cells  

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

Nontoxic quantum dot research improves solar cells Nontoxic quantum dot research improves solar cells Solar cells made with low-cost, nontoxic copper-based quantum dots can achieve...

2

CTS Transportation Research Conference April 28, 2010  

E-Print Network [OSTI]

CTS Transportation Research Conference April 28, 2010 Sheila Hatchell, Mn/DOT Library Arlene Mathison, CTS Library Services 1 #12;!!Goal: To make transportation information more readily available throughout Minnesota !!Collaborative effort of Mn/DOT, the Center for Transportation Studies, and the Local

Minnesota, University of

3

13th Annual Transportation Engineering and Road Research Alliance (TERRA)  

E-Print Network [OSTI]

13th Annual Sponsor: Transportation Engineering and Road Research Alliance (TERRA) Cosponsors: Minnesota Department of Transportation (Mn/DOT) Minnesota Local Technical Assistance Program (LTAP Association State Aid for Local Transportation, Mn/DOT Minnesota Local Road Research Board (LRRB) Pavement

Minnesota, University of

4

Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics.  

E-Print Network [OSTI]

??Quantum dot photovoltaics have attracted much interest from researchers in recent years. They have the potential to address both costs and efficiencies of solar cells… (more)

Padilla, Derek

2013-01-01T23:59:59.000Z

5

Louisiana Transportation Research Center  

E-Print Network [OSTI]

Louisiana Transportation Research Center LTRC www.ltrc.lsu.edu 2012-13 ANNUALREPORT #12;The Louisiana Transportation Research Center (LTRC) is a research, technology transfer, and training center administered jointly by the Louisiana Department of Transportation and Development (DOTD) and Louisiana State

Harms, Kyle E.

6

Two-path transport measurements with bias dependence on a triple quantum dot  

SciTech Connect (OSTI)

We present transport measurements on a lateral triple quantum dot with a star-like geometry and one lead attached to each dot. The system is studied in a regime close to established quadruple points, where all three dots are in resonance. The specific sample structure allows us to apply two different bias voltages to the two source leads and thus to study the influence between the paths with serial double dots.

Kotzian, M.; Rogge, M. C.; Haug, R. J. [Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstr. 2, 30167 Hannover (Germany)

2013-12-04T23:59:59.000Z

7

Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics  

E-Print Network [OSTI]

cell efficiency milestones. Quantum dot photovoltaics is inphotovoltaics provide the potential to create high-efficiencycell efficiency milestones. Quantum dot photovoltaics is in

Padilla, Derek

2013-01-01T23:59:59.000Z

8

Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics  

E-Print Network [OSTI]

4.4 Photovoltaics in Practice . . . . . . . . . . . . . .milestones. Quantum dot photovoltaics is in the bottom-rightIN QUANTUM DOT PHOTOVOLTAICS A dissertation submitted in

Padilla, Derek

2013-01-01T23:59:59.000Z

9

Application of Mn/DOT Utility Coordination Process to Local Agencies Based on national best practices, the Minnesota Department of Transportation (Mn/DOT) Utility  

E-Print Network [OSTI]

Application of Mn/DOT Utility Coordination Process to Local Agencies Based on national best practices, the Minnesota Department of Transportation (Mn/DOT) Utility Coordination Process incorporates Processes There are projects where the full process is not necessary. The Mn/DOT Utilities Manual provides

Minnesota, University of

10

TRANSPORTATION Policy Research CENTER  

E-Print Network [OSTI]

, and describes conditions necessary for successful public-private transportation partnerships. The researchers found that effective P3 programs rely on these factors for their success: Enabling Legislation in the process is necessary. Economic Environment: Favorable economic conditions conducive to investment-- from

11

NREL: Transportation Research Home Page  

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

to heavy-duty freight trucks. Female researcher holding coin cell battery. NREL's transportation research spans from the materials to the systems level. Fuel cell electric sports...

12

Transportation Management Research Collection /  

E-Print Network [OSTI]

, Peterbilt Motors, and General Electric. He was a national panel member of the American Arbitration, Noise and Environmental Pollution, Transportation Co-ordination and Consolidation, Transportation -- Docket 8613 1957 Civil Aeronautics Board ­ General passenger fare investigation -- Docket 8008 et al

Handy, Todd C.

13

Policy Research TRANSPORTATION  

E-Print Network [OSTI]

to attract businesses and jobs to Texas, as the state has become increasingly dependent on the efficient will continue to be an important part of the 21st century transportation model, more efficient use of available and innovation; and · Serve as an independent resource to the Texas Legislature, providing analyses of the state

14

Transportation Research Record: Journal of the Transportation Research Board, No. 2307, Transportation Research Board of the National Academies, Washington,  

E-Print Network [OSTI]

141 Transportation Research Record: Journal of the Transportation Research Board, No. 2307, Transportation Research Board of the National Academies, Washington, D.C., 2012, pp. 141­149. DOI: 10. In this research, from 2008 to 2011, the authors adopted transportation board games as an instructional tool

Levinson, David M.

15

22nd Annual Transportation Research Conference  

E-Print Network [OSTI]

22nd Annual Transportation Research Conference May 24-25, 2011 Crowne Plaza St. Paul Riverfront for Transportation Studies 22nd Annual Transportation Research Conference Welcome to the Conference The University of Minnesota's Center for Transportation Studies is pleased to present its 22nd Annual Transportation Research

Minnesota, University of

16

The impact of disorder on charge transport in three dimensional quantum dot resonant tunneling structures  

SciTech Connect (OSTI)

Efficient iso-entropic energy filtering of electronic waves can be realized through nanostructures with three dimensional confinement, such as quantum dot resonant tunneling structures. Large-area deployment of such structures is useful for energy selective contacts but such configuration is susceptible to structural disorders. In this work, the transport properties of quantum-dot-based wide-area resonant tunneling structures, subject to realistic disorder mechanisms, are studied. Positional variations of the quantum dots are shown to reduce the resonant transmission peaks while size variations in the device are shown to reduce as well as broaden the peaks. Increased quantum dot size distribution also results in a peak shift to lower energy which is attributed to large dots dominating transmission. A decrease in barrier thickness reduces the relative peak height while the overall transmission increases dramatically due to lower “series resistance.” While any shift away from ideality can be intuitively expected to reduce the resonance peak, quantification allows better understanding of the tolerances required for fabricating structures based on resonant tunneling phenomena/.

Puthen-Veettil, B., E-mail: b.puthen-veettil@unsw.edu.au; Patterson, R.; König, D.; Conibeer, G.; Green, M. A. [Australian Centre for Advanced Photovoltaics, UNSW, Sydney 2052 (Australia)

2014-10-28T23:59:59.000Z

17

NREL: Transportation Research - Transportation and Hydrogen Newsletter...  

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

The Future of Sustainable Transportation This is the January 2015 issue of the Transportation and Hydrogen Newsletter. Illustration of an electric vehicle Illustration of an...

18

Report on the 1961 TRANSPORTATION RESEARCH--------.. . -. .  

E-Print Network [OSTI]

) ) ) Report on the 1961 TRANSPORTATION RESEARCH--------.. . -. . AND SERVICE ACTIVITIES IC C Negotiations with carriers ..·..... Resea rch activities ·...........·... Transportation Section staff resea rch . Transportation rate indexes .... Fish meal, scrap, and solublf's information

19

NREL: Transportation Research - Transportation Secure Data Center  

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 and Evaluation PhotoSystemsTransportation Secure

20

NREL: Transportation Research - Transportation and Hydrogen Newsletter:  

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 and Evaluation PhotoSystemsTransportation

Note: This page contains sample records for the topic "transportation dot research" 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

Transportation Research Board Conference January 10, 2005 Using Custom Transportation Data  

E-Print Network [OSTI]

Transportation Research Board Conference January 10, 2005 Using Custom Transportation Data Collection Software with Handheld Computers for Education, Research, and Practice Transportation Research, Andrew Byrd, Michael Rose, Tarek Abou El-Seoud #12;Transportation Research Board Conference January 10

Bertini, Robert L.

22

Quantum dot device tunable from single to triple dot system  

SciTech Connect (OSTI)

We present a lateral quantum dot device which has a tunable number of quantum dots. Depending on easily tunable gate voltages, one, two or three quantum dots are found. They are investigated in transport and charge detection.

Rogge, M. C.; Haug, R. J. [Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstrasse 2, 30167 Hannover (Germany); Pierz, K. [Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig (Germany)

2013-12-04T23:59:59.000Z

23

Transportation Secure Data Center: Real-World Data for Value Pricing and Tolling Research (Fact Sheet)  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database provides free-of-charge web-based access to valuable transportation data that can be used for: Location and time-of-day variable tolling research, Mileage-based fee analysis, Travel demand modeling and transit planning, Congestion mitigation research, and Validating transportation data from other sources. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

Not Available

2013-01-01T23:59:59.000Z

24

Sustainable Transportation Energy Pathways Research  

E-Print Network [OSTI]

/Security of Energy Supply, esp. in transportation sector · Air Pollutant Emissions · Greenhouse Gas Emissions (GHG of air pollutant emissions. · World transportation sector 97% dependent on oil. · # vehicles projected strategy should have a "portfolio" approach with multiple solutions Fuel Alternatives · Hydrogen · Biofuels

Handy, Susan L.

25

2012 CTS Research Conference MnDOT Freeway Operations Engineer  

E-Print Network [OSTI]

the number of transactions, transponder leases and revenue generation; and, !Customer Satisfaction: including are performing include: !number of transactions, !transponder leases, and !revenue generation #12;!Accounts 12 to market projects #12;Brian Kary, P.E. Minnesota Department of Transportation E-Mail: brian

Minnesota, University of

26

Sandia National Laboratories: Research Challenge 2: Quantum Dots and  

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 -theErik SpoerkeSolar RegionalClimateResearch ResearchStoringSandianResearch

27

Transportation Research | More Science | 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 SecurityTensile Strain Switched Ferromagnetism in Layered NbS2Topo II:LIGHT-DUTY VEHICLESTransportationTransportation

28

Showcasing the research of quantum dot sensitized solar cells from Prof. J.J.Tian's and Prof. G.Z.Cao's lab,  

E-Print Network [OSTI]

. Introduction Quantum dot sensitized solar cells (QDSCs) can be regarded as a derivative of dye-sensitized solarShowcasing the research of quantum dot sensitized solar cells from Prof. J.J.Tian's and Prof. G cells A hierarchical structure of ZnO/TiO2 nanocable photoanode for quantum dot sensitized solar cells

Cao, Guozhong

29

Double-dot charge transport in Si single-electronhole transistors L. P. Rokhinson,a)  

E-Print Network [OSTI]

­oxide­ semiconductor field-effect transistors MOSFETs brought to light several issues related to the electrical beneath the dot transforming it into a free-standing bridge. Subsequently, 40 or 50 nm of oxide are thermally grown which further reduce the size of the dot. Polysilicon gate is deposited over the bridge

Rokhinson, Leonid

30

Center for Transportation Training and Research Texas Southern University  

E-Print Network [OSTI]

Center for Transportation Training and Research Texas Southern University Khosro Godazi Associate Director, Center for Transportation Training and Research, and SWUTC Associate Director for Transportation.S. in City Planning. He is Director of 4-week Texas Summer Transportation Institute that has been held

31

Heavy duty transport research needs assessment  

SciTech Connect (OSTI)

As a result of the desire to decrease the dependence of the US on foreign petroleum as a transportation fuel, this report assesses the research needs to further develop heavy duty engines. The topics covered include diesel engines, alternative fuels, electric vehicle technology, gas turbine engines, and stirling cycle alternative engines. (GHH)

Not Available

1991-09-13T23:59:59.000Z

32

The physics and chemistry of transport in CdSe quantum dot solids  

E-Print Network [OSTI]

Semiconductor quantum dots (QDs) have tunable opto-electronic properties and can be chemically synthesized and manipulated with ease, making them a promising novel material for many diverse applications. An understanding ...

Jarosz, Mirna, 1981-

2004-01-01T23:59:59.000Z

33

Center for Transportation Research University of Texas at Austin  

E-Print Network [OSTI]

Center for Transportation Research University of Texas at Austin Chandra Bhat, Ph.D. Director, Center for Transportation Research Adnan Abou-Ayyash Centennial Professor in Transportation Engineering-4535 Biography Dr. Chandra R. Bhat is the Director of the Center for Transportation Research (CTR) and the Adnan

34

Center for Transportation Research University of Texas at Austin  

E-Print Network [OSTI]

Center for Transportation Research University of Texas at Austin Randy B. Machemehl, Ph.D., P.E. Nasser I. Al-Rashid Centennial Professor in Transportation Engineering, Director of the Center for Transportation Research, and SWUTC Executive Committee Member Center for Transportation Research University

35

TransForumNews from Argonne's Transportation Research Program www.transportation.anl.gov  

E-Print Network [OSTI]

TransForumNews from Argonne's Transportation Research Program www.transportation.anl.gov Volume 14 Issue 2 2014 Contents #12;TransForumNews from Argonne's Transportation Research Program www.transportation.anl.gov VERIFI Shrinks Combustion Engine Development Cycles to Save Money and Time page 4 Argonne researchers

Kemner, Ken

36

TransForumNews from Argonne's Transportation Research Program www.transportation.anl.gov  

E-Print Network [OSTI]

TransForumNews from Argonne's Transportation Research Program www.transportation.anl.gov Volume 14 Issue 2 2014 #12;TransForumNews from Argonne's Transportation Research Program www.transportation.anl.gov VERIFI Shrinks Combustion Engine Development Cycles to Save Money and Time page 4 Argonne researchers

Kemner, Ken

37

Exploring the Localization of Transportation Planning: Essays on research and policy implications from shifting goals in transportation planning  

E-Print Network [OSTI]

Structure? Paper read at Transportation Research Board,Thomas Straatemeier. 2008. Urban transportation planning inDiversity and Design. Transportation Research -Part D 2

King, David Andrew

2009-01-01T23:59:59.000Z

38

Center for Transportation Training and Research Texas Southern University  

E-Print Network [OSTI]

Center for Transportation Training and Research Texas Southern University Carol Lewis, Ph.D. Director, Center for Transportation Training and Research, and SWUTC Executive Committee Member Texas is an Associate Professor in Transportation Studies and Direc- tor of the Center for Transportation Training

39

Fuel Cells for Transportation - Research and Development: Program...  

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

Research and Development: Program Abstracts Fuel Cells for Transportation - Research and Development: Program Abstracts Remarkable progress has been achieved in the development of...

40

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl  

E-Print Network [OSTI]

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl 865-946-1475 865-946-1236 Center for Transportation Analysis News Oak Ridge National, during the Chairman's Luncheon at the 92nd Annual Transportation Research Board (TRB) Meeting

Note: This page contains sample records for the topic "transportation dot research" 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

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl  

E-Print Network [OSTI]

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl 865-946-1475 865-946-1236 Center for Transportation Analysis News Oak Ridge National to members of the Kentucky Transportation Cabinet and the Kentucky Transportation Center. The purpose

42

Mn/DOT's Project Peer Review  

E-Print Network [OSTI]

and sustain this culture #12;Project Management #12;Recent National Work in Transportation Project ManagementMn/DOT's Project Management Peer Review Creating a Project Management Culture 2010 CTS Research a Peer Review? Why Project Management? ·Improve project delivery performance ­ on time, on budget (an

Minnesota, University of

43

Transport through open quantum dots: Making semiclassics quantitative Iva Bezinov,1,* Ludger Wirtz,2 Stefan Rotter,1 Christoph Stampfer,3 and Joachim Burgdrfer1  

E-Print Network [OSTI]

, Vienna University of Technology, Wiedner HauptstraÃ?e 8-10/136, 1040 Vienna, Austria, EU 2Department ISEN, Germany, EU Received 28 October 2009; published 9 March 2010 We investigate electron transport through clean open quantum dots quantum billiards . We present a semi- classical theory that allows

Rotter, Stefan

44

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan Ogden and Lorraine Anderson #12;Institute of Transportation Studies University of California, Davis One TRANSPORTATION ENERGY PATHWAYS PART 3: SCENARIOS FOR A LOW-CARBON TRANSPORTATION FUTURE PART 3 Part 3: Scenarios

California at Davis, University of

45

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan Ogden and Lorraine Anderson #12;Institute of Transportation Studies University of California, Davis One TRANSPORTATION ENERGY PATHWAYS PART 3 CHAPTER 10: OPTIMIZING THE TRANSPORTATION CLIMATE MITIGATION WEDGE Chapter

California at Davis, University of

46

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS PART 4: POLICY AND SUSTAINABLE TRANSPORTATION Part 4: Policy and pollutants such as aerosols and black carbon. Third, more #12;250 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS

California at Davis, University of

47

Center for Transportation Research University of Texas at Austin  

E-Print Network [OSTI]

Center for Transportation Research University of Texas at Austin C. Michael Walton, Ph.D., P for Transportation Research University of Texas at Austin Austin, TX 78701 cmwalton@mail.utexas.edu (512) 471 pursued a career in transport systems engineering and policy analysis. Dr. Walton is a member

48

20th Annual Transportation Research Conference May 1920, 2009  

E-Print Network [OSTI]

20th Annual Transportation Research Conference May 19­20, 2009 Sheraton Hotel, Bloomington, Minnesota Call for Presentations The Center for Transportation Studies invites interested individuals and groups to submit abstracts for presentation at the Center's 20th Annual Transportation Research

Minnesota, University of

49

Eighteenth Annual Transportation Research Conference May 12, 2007  

E-Print Network [OSTI]

Eighteenth Annual Transportation Research Conference May 1­2, 2007 RiverCentre, St. Paul, Minnesota Call for Presentations The Center for Transportation Studies invites interested individuals and groups to submit abstracts for presentation at the Center's Eighteenth Annual Transportation Research Conference

Minnesota, University of

50

Center for Transportation Training and Research Texas Southern University  

E-Print Network [OSTI]

Center for Transportation Training and Research Texas Southern University Lei Yu, Ph.D., P.E. Professor of Transportation and Dean College of Science and Technology, and SWUTC Executive Committee Member and Technology, Industrial Technol- ogy, Mathematics, Physics, and Transportation Studies. He also oversees

51

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan Ogden and Lorraine Anderson #12;Institute of Transportation Studies University of California, Davis One TRANSPORTATION ENERGY PATHWAYS CHAPTER 8: SCENARIOS FOR DEEP REDUCTIONS IN GREENHOUSE GAS EMISSIONS PART 3

California at Davis, University of

52

Transportation Research Board AFN 10: Basic Research and Emerging Technologies in Concrete  

E-Print Network [OSTI]

Transportation Research Board AFN 10: Basic Research and Emerging Technologies in Concrete I will identify potential problems related to concrete materials, and develop research needs statement within STATEMENT AND BACKGROUND The chloride induced corrosion of steel reinforcement embedded in concrete

53

All inorganic colloidal quantum dot LEDs  

E-Print Network [OSTI]

This thesis presents the first colloidal quantum dot light emitting devices (QD-LEDs) with metal oxide charge transport layers. Colloidally synthesized quantum dots (QDs) have shown promise as the active material in ...

Wood, Vanessa Claire

2007-01-01T23:59:59.000Z

54

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

as a source of energy in the production of a biofuel, soil erosion might increase and fewer nutrients and lessSUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan TRANSPORTATION ENERGY PATHWAYS PART 1: INDIVIDUAL FUEL/VEHICLE PATHWAYS PART 2 Chapter 7: Comparing Land, Water

California at Davis, University of

55

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan, batteries, and ultracapacitors. Andrew #12;316 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS AUTHORS://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;315 SUSTAINABLE

California at Davis, University of

56

Vehicle Technologies Office: Data and Analysis for Transportation Research  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy (DOE) — in conjunction with the national laboratories — conducts a wide range of statistical research on energy use, economics, and trends in transportation.

57

CENTER FOR TRANSPORTATION RESEARCH LIBRARY 111111111111111111111111111111111111111111111  

E-Print Network [OSTI]

offset the cost of initial investment for expansion of the current facility. , This case study shows investment in the facility. Expanding the current facility to add general I rpose lanes or HOV lanes ofthe University Transportation Centers Program which is funded 50% in oil overcharge funds from

58

E-Print Network 3.0 - air transportation research Sample Search...  

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

Center for Transportation Analysis Research... A team of researchers toured ports and land transport ... Source: Oak Ridge National Laboratory, Center for...

59

E-Print Network 3.0 - air transport research Sample Search Results  

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

Center for Transportation Analysis Research... A team of researchers toured ports and land transport ... Source: Oak Ridge National Laboratory, Center for...

60

CTS Councils provide a forum for transportation professionals and researchers to exchange information on current transportation  

E-Print Network [OSTI]

of Management, Departments of Civil, Environmental, and Geo- Engineering, Geography, and Applied Economics of Civil, Environmental, and Geo- Engineering, Bioproducts and Biosystems Engineering, and Soil, WaterCTS Councils provide a forum for transportation professionals and researchers to exchange

Levinson, David M.

Note: This page contains sample records for the topic "transportation dot research" 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

New Transportation Technology | GE Global Research  

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 Southwest Regionat Cornell Batteries &NSTCurrentTransportation We're working

62

NREL: Transportation Research - Truck Platooning Testing  

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 and Evaluation PhotoSystemsTransportationTruck

63

MOBILITY MEASUREMENT IN URBAN TRANSPORTATION (MMUT) RESEARCH PROJECT  

E-Print Network [OSTI]

1 MOBILITY MEASUREMENT IN URBAN TRANSPORTATION (MMUT) RESEARCH PROJECT Project Summary ­ FY 2010 procedures and resulting performance measures have been used in multimodal measurement efforts in many U fund effort will be on some emerging topical areas. The goals of the proposed research project include

64

Center for Intelligent Systems Research GW Transportation Research Institute  

E-Print Network [OSTI]

a vehicle donated by General Motors Corporation, the simulator will be used to conduct research Institute School of Engineering and Applied Science #12;Driver Simulator Laboratory Center for Intelligent

Vertes, Akos

65

Non-Motorized Facility Inventory CTS Annual Transportation Research Conference  

E-Print Network [OSTI]

Non-Motorized Facility Inventory CTS Annual Transportation Research Conference May 23, 2012 Jesse an inventory and assessment of the non-motorized facilities along Carver County roadways 2. Identify the gaps-8 Safety Issues Identified #12;non-motorized facilities inventory #12;GIS mapping capabilities #12;An

Minnesota, University of

66

Heavy duty transport research needs assessment. Final report  

SciTech Connect (OSTI)

As a result of the desire to decrease the dependence of the US on foreign petroleum as a transportation fuel, this report assesses the research needs to further develop heavy duty engines. The topics covered include diesel engines, alternative fuels, electric vehicle technology, gas turbine engines, and stirling cycle alternative engines. (GHH)

Not Available

1991-09-13T23:59:59.000Z

67

Transportation Center Seminar........ "Overview of Power Grid Research at Argonne  

E-Print Network [OSTI]

projects on impact of electric vehicle charging on power grid operations. I will also introduce various. The scope of our work spans a multitude of areas including smart grid, electric vehicles, buildings sciencesTransportation Center Seminar........ "Overview of Power Grid Research at Argonne National

Bustamante, Fabián E.

68

Freight Transportation Electronic Marketplaces: A Survey of the Industry and Exploration of Important Research Issues  

E-Print Network [OSTI]

Coia, A. , Evolving transportation exchanges, World trade,of Carrier strategies in an auction based transportationmarketplace, Transportation Research Board, Journal of the

Nandiraju, Srinivas; Regan, Amelia

2008-01-01T23:59:59.000Z

69

Transport through open quantum dots: Making semiclassics quantitative Iva B#ezinov, 1, e i z, e an o e , 1 i o a e , an oa i B e 1  

E-Print Network [OSTI]

Transport through open quantum dots: Making semiclassics quantitative Iva B#ezinová, 1, e i z, e an o e , 1 i o a e , an oa i B e 1 1 Institute for Theoretical Physics, Vienna University of Technology JARA­FIT and II. Institute of Physics, RWTH Aachen, 52074 Aachen, Germany, EU # e eive o e i e a 1 # e

Rotter, Stefan

70

CTS Annual Transportation Research Conference April 28, 2010  

E-Print Network [OSTI]

/DOT! ­! Other! #12;Rural Road Safety Solutions Workshop - Objective Creating an operating culture where safety ­ Putting Safety into Practice ·! Funding! ·! Stakeholder Involvement! ·! Foster a "Culture of Safety Consulting Group Toward Zero Deaths: Maintaining a Safer RoadwayRural Road Safety Workshops #12

Minnesota, University of

71

Transportable Heavy Duty Emissions Testing Laboratory and Research Program  

SciTech Connect (OSTI)

The objective of this program was to quantify the emissions from heavy-duty vehicles operating on alternative fuels or advanced fuel blends, often with novel engine technology or aftertreatment. In the first year of the program West Virginia University (WVU) researchers determined that a transportable chassis dynamometer emissions measurement approach was required so that fleets of trucks and buses did not need to be ferried across the nation to a fixed facility. A Transportable Heavy-Duty Vehicle Emissions Testing Laboratory (Translab) was designed, constructed and verified. This laboratory consisted of a chassis dynamometer semi-trailer and an analytic trailer housing a full scale exhaust dilution tunnel and sampling system which mimicked closely the system described in the Code of Federal Regulations for engine certification. The Translab was first used to quantify emissions from natural gas and methanol fueled transit buses, and a second Translab unit was constructed to satisfy research demand. Subsequent emissions measurement was performed on trucks and buses using ethanol, Fischer-Tropsch fuel, and biodiesel. A medium-duty chassis dynamometer was also designed and constructed to facilitate research on delivery vehicles in the 10,000 to 20,000lb range. The Translab participated in major programs to evaluate low-sulfur diesel in conjunction with passively regenerating exhaust particulate filtration technology, and substantial reductions in particulate matter were recorded. The researchers also participated in programs to evaluate emissions from advanced natural gas engines with closed loop feedback control. These natural gas engines showed substantially reduced levels of oxides of nitrogen. For all of the trucks and buses characterized, the levels of carbon monoxide, oxides of nitrogen, hydrocarbons, carbon dioxide and particulate matter were quantified, and in many cases non-regulated species such as aldehydes were also sampled. Particle size was also quantified during selected studies. A laboratory was established at WVU to provide for studies which supported and augmented the Translab research, and to provide for development of superior emissions measurement systems. This laboratory research focused on engine control and fuel sulfur issues. In recent years, as engine and aftertreatment technologies advanced, emissions levels were reduced such that they were at or below the Translab detectable limits, and in the same time frame the US Environmental Protection Agency required improved measurement methodologies for engine emissions certification. To remain current and relevant, the researchers designed a new Translab analytic system, housed in a container which can be transported on a semi-trailer. The new system's dilution tunnel flow was designed to use a subsonic venturi with closed loop control of blower speed, and the secondary dilution and particulate matter filter capture were designed to follow new EPA engine certification procedures. A further contribution of the program has been the development of techniques for creating heavy-duty vehicle test schedules, and the creation of schedules to mimic a variety of truck and bus vocations.

David Lyons

2008-03-31T23:59:59.000Z

72

Return on Investment for State Highway Projects 25th Annual Transportation Research Conference  

E-Print Network [OSTI]

Return on Investment for State Highway Projects 25th Annual Transportation Research Conference May ­ Maintain and repair existing roads and bridges · Grow the Economy by Making Your Transportation Investments;8 · Describes strategies states can use to achieve the greatest outcomes at the least cost with transportation

Minnesota, University of

73

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

production plant, processing them to produce transportation fuels, providing refueling sites, and delivering has developed over a century, encompassing worldwide oil exploration and production, long

California at Davis, University of

74

Project Information Form Project Title Impact of Legislative Mandates on Transportation Workforce Capacity  

E-Print Network [OSTI]

or organization) DOT $95,000 Total Project Cost $95,000 Agency ID or Contract Number DTRT13-G-UTC29 Start and EndProject Information Form Project Title Impact of Legislative Mandates on Transportation Workforce Dates August 1, 2014 to July 31, 2015 Brief Description of Research Project The transportation industry

California at Davis, University of

75

TECHMRT The Center for Multidisciplinary Research in Transportation (TechMRT) at Texas Tech University is dedicated to serving as a focal point for communica-tion between Texas Tech University and various transportation research funding organizations and  

E-Print Network [OSTI]

TECHMRT The Center for Multidisciplinary Research in Transportation (TechMRT) at Texas Tech and various transportation research funding organizations and programs. A genuinely multidisciplinary facility, Department of Plant and Soil Science, Department of Landscape Architecture, the TTU Library

Gelfond, Michael

76

The Dynamic Context for Sustainable Transportation Energy Research  

E-Print Network [OSTI]

IN VEHICLES time constants: 20-60 years #12;REFUELING STATIONS FOR GASOLINE & ALTERNATIVE FUELS Gasoline CNG MethanolEthanol ~100+ H2refueling stations worldwide #12;HISTORICAL DATA: MAJOR US TRANSPORTATION

Handy, Susan L.

77

Wind Turbine Transportation in Toyland | GE Global Research  

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

Wind Turbine Transportation in Toyland Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to...

78

AUTHORIZING THE DOT SPECIFICATION 6M PACKAGING FOR CONTINUED USE AT THE SAVANNAH RIVER SITE  

SciTech Connect (OSTI)

The U.S. Department of Transportation (DOT) Specification 6M packaging was in extensive use for more than 40 years for in-commerce shipments of Type B quantities of fissile and radioactive material (RAM) across the USA, among the Department of Energy (DOE) laboratories, and between facilities in the DOE production complex. In January 2004, the DOT Research and Special Programs Administration (RSPA) Agency issued a final rule in the Federal Register to ammend requirements in the Hazardous Materials Regulations (HMR) pertaining to the transportation of radioactive materials. The final rule became effective on October 1, 2004. One of those changes discontinued the use of the DOT specification 6M, along with other DOT specification packagings, on October 1, 2008. A main driver for the change was due to the fact that 6M specification packagings were not supported by a Safety Analysis Report for Packagings (SARP) that was compliant with Title 10 of the Code of Federal Regulations (CFR) Part 71 (10 CFR 71). The regulatory rules for the discontinued use have been edited in Title 49 of the CFR Parts 100-185, 2004 edition and thereafter. Prior to October 1, 2008, the use of the 6M within the boundaries of the Savannah River Site (SRS), called an onsite transfer, was governed by an onsite transportation document that referenced 49 CFR Parts 100-185. SRS had to develop an Onsite Safety Assessment (OSA) which was independent of 49 CFR in order to justify the continued use of the DOT Specification 6M for the transfer of radioactive material (RAM) at the SRS after October 1, 2008. This paper will discuss the methodology for and difficulties associated with authorizing the DOT Specification 6M Packaging for continued use at the Savannah River Site.

Watkins, R.; Loftin, B.; Hoang, D.

2010-03-04T23:59:59.000Z

79

2011 | Center for transportation safety Safety Research and Outreachhttp://tti.tamu.edu/cts/  

E-Print Network [OSTI]

enforcement's impact on changing the driving culture to improve safety. · An examination of the growing2011 | Center for transportation safety Safety Research and Outreachhttp://tti.tamu.edu/cts/ ANNUAL REPORT #12;2 | 2011 annUaL report Center for transportation safety introDUCtion #12;CENTER fOR TRANs

80

Basic Research Needs for Clean and Efficient Combustion of 21st Century Transportation Fuels  

SciTech Connect (OSTI)

To identify basic research needs and opportunities underlying utilization of evolving transportation fuels, with a focus on new or emerging science challenges that have the potential for significant long-term impact on fuel efficiency and emissions.

McIlroy, A.; McRae, G.; Sick, V.; Siebers, D. L.; Westbrook, C. K.; Smith, P. J.; Taatjes, C.; Trouve, A.; Wagner, A. F.; Rohlfing, E.; Manley, D.; Tully, F.; Hilderbrandt, R.; Green, W.; Marceau, D.; O'Neal, J.; Lyday, M.; Cebulski, F.; Garcia, T. R.; Strong, D.

2006-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

-duty markets for advanced electric-drive technologies such as plug-in hybrids and hydrogen fuel cell vehicles electric vehicles (PHEVs) play a major role beyond 2025. · FCV success--Hydrogen fuel cell vehicles (FCVs TRANSPORTATION ENERGY PATHWAYS PART 1: INDIVIDUAL FUEL/VEHICLE PATHWAYS PART 3 Chapter 9: Transition Scenarios

California at Davis, University of

82

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

generally is linear, static, highly simplified, and tightly circumscribed, and the real world, which LCA, analysts, policy makers, and the public began to worry that burning coal, oil, and gas would affect the global climate. Interest in alternative transportation fuels, which had subsided with the low oil prices

California at Davis, University of

83

Addressing transportation energy and environmental impacts: technical and policy research directions  

SciTech Connect (OSTI)

The Lawrence Livermore National Laboratory (LLNL) is establishing a local chapter of the University of California Energy Institute (UCEI). In order to most effectively contribute to the Institute, LLNL sponsored a workshop on energy and environmental issues in transportation. This workshop took place in Livermore on August 10 and brought together researchers from throughout the UC systems in order to establish a joint LLNL-UC research program in transportation, with a focus on energy and environmental impacts.

Weissenberger, S.; Pasternak, A.; Smith, J.R.; Wallman, H.

1995-08-01T23:59:59.000Z

84

Lessons learned from bacterial transport research at the South Oyster Site  

SciTech Connect (OSTI)

This paper provides a review of bacterial transport experiments conducted by a multi-investigator, multi-institution, multi-disciplinary team of researchers under the auspices of the U. S. Department of Energy (DOE). The experiments were conducted during the time period 1999-2001 at a field site near the town of Oyster, Virginia known as the South Oyster Site, and included four major experimental campaigns aimed at understanding and quantifying bacterial transport in the subsurface environment. Several key elements of the research are discussed here: (1) quantification of bacterial transport in physically, chemically and biologically heterogeneous aquifers, (2) evaluation of the efficacy of conventional colloid filtration theory, (3) scale effects in bacterial transport, (4) development of new methods for microbial enumeration and screening for low adhesion strains, (5) application of novel hydrogeophysical techniques for aquifer characterization, and (6) experiences regarding management of a large field research effort. Lessons learned are summarized in each of these areas. The body of literature resulting from South Oyster Site research has been widely cited and continues to influence research into the controls exerted by aquifer heterogeneity on reactive transport (including microbial transport). It also served as a model (and provided valuable experience) for subsequent and ongoing highly-instrumented field research efforts conducted by DOE-sponsored investigators.

Scheibe, T.; Hubbard, S.S.; Onstott, T.C.; DeFlaun, M.F.

2011-04-01T23:59:59.000Z

85

Mn/DOT County Road Safety Plans  

E-Print Network [OSTI]

Roads Program !! Minnesota Central Safety Funds !! Foster safety culture among county stakeholders 41 Mn/DOT County Road Safety Plans CTS Annual Research Conference April 27 & 28, 2010 Howard Preston & Objectives !! Project Overview !! Schedule, Participating Counties, Approach !! Safety Emphasis Areas

Minnesota, University of

86

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl  

E-Print Network [OSTI]

and Peer Evaluation Meetings (AMR) for the Hydrogen and Fuel Cells Program and the Vehicle Technologies of Hydrogen Fuel Cell Vehicle Technology and Prospects for the Future" P.T. Jones ­ "Dynamic Wireless Power-Board Storage Pressure for Hydrogen Fuel Cell Vehicles" Poster Presentations: Stacy Davis ­ "Transportation

87

Chemistry and Transport - Combustion Energy Frontier Research Center  

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 to User Group and Userof a blast-resistantChemistry and Transport

88

Minnesota Guidestar www.dot.state.mn.us/guidestar  

E-Print Network [OSTI]

.dot.state.mn.us/guidestar What is ITS? · Application of technology to improve the safety and efficiency of the transportation system. #12;Minnesota Guidestar www.dot.state.mn.us/guidestar What is ITS? · Traffic Management ­ Signal Systems ­ Ramp Meters · Emergency Response ­ Mobile Data Terminals ­ 911 Dispatch ­ RF Data Networks

Minnesota, University of

89

Energy and Environmental Issues, 1991. Transportation research record  

SciTech Connect (OSTI)

Partial Contents: Mitigation of Traffic Mortality of Endangered Brown Pelicans on Coastal Bridges; Cooperation Between State Highway and Environmental Agencies in Dealing With Hazardous Waste in the Right-of-Way; Comparison of Intersection Air Quality Models' Ability to Simulate Carbon Monoxide Concentrations in an Urban Area; Model Calculation of Environment-Friendly Traffic Flows in Urban Networks; Sensitivity Analysis for Land Use, Transportation, and Air Quality; Special Events and Carbon Monoxide Violations: TSM, Crowd Control, Economics, and Solutions to Adverse Air Quality Impacts; Mode Split at Large Special Events and Effects on Air Quality; Internal Consistency and Stability of Measurements of Community Reaction to Noise; Impact and Potential Use of Attitude and Other Modifying Variables in Reducing Community Reaction to Noise; Techniques for Aesthetic Design of Freeway Noise Barriers; Effects of Road Surface Texture on Traffic and Vehicle Noise; Electrokinetic Soil Processing in Waste Remediation and Treatment: Synthesis of Available Data; Site Remediation by In Situ Vitrification.

Not Available

1991-01-01T23:59:59.000Z

90

SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers  

E-Print Network [OSTI]

individual meetings. UC Davis researchers and students benefited greatly from these valuable interactions. We The authors would like to thank Quinn Hart, Peter Tittmann, and Colin Murphy (UC Davis), Richard Nelson (UC Davis) for helping develop our understanding in many useful discussions. Chapter 2: The Plug

California at Davis, University of

91

Transport Research Arena Europe 2010, Brussels Towards Highly Automated Driving  

E-Print Network [OSTI]

of HAVEit is to develop and investigate vehicle automation beyond ADAS systems, especially highly automated automated vehicles In 2010, two lines of research and development exist in the domain of ground vehicle automation: Either the automation is driving the vehicle fully automated without a human driver

Paris-Sud XI, Université de

92

Scalable quantum computer architecture with coupled donor-quantum dot qubits  

DOE Patents [OSTI]

A quantum bit computing architecture includes a plurality of single spin memory donor atoms embedded in a semiconductor layer, a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, wherein a first voltage applied across at least one pair of the aligned quantum dot and donor atom controls a donor-quantum dot coupling. A method of performing quantum computing in a scalable architecture quantum computing apparatus includes arranging a pattern of single spin memory donor atoms in a semiconductor layer, forming a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, applying a first voltage across at least one aligned pair of a quantum dot and donor atom to control a donor-quantum dot coupling, and applying a second voltage between one or more quantum dots to control a Heisenberg exchange J coupling between quantum dots and to cause transport of a single spin polarized electron between quantum dots.

Schenkel, Thomas; Lo, Cheuk Chi; Weis, Christoph; Lyon, Stephen; Tyryshkin, Alexei; Bokor, Jeffrey

2014-08-26T23:59:59.000Z

93

REVIEW AND ANALYSIS Research Activities at U.S. Government Agencies in Subsurface Reactive Transport Modeling  

E-Print Network [OSTI]

Subsurface reactive transport modeling may be defi ned as the use of mathematical models to simulate the fate and transport of dissolved species and particulates in groundwater as these species are transported through porous media and react with each other, with mineral surfaces, and with microbes associated with the porous media matrix. This type of modeling has evolved over the last 30 yr from a specialized research topic involving a dozen or so practitioners (with often large stacks of computer punch cards) to a common offi ce tool found today on the personal computer (and occasional supercomputer) of many environmental chemists, geochemists, and soil scientists. The devel-

All T. Cygan; Caroline T. Stevens; Robert W. Puls; Steven B. Yabusaki; Robert D; David R. Turner

94

Thin Film Solar Cells Derived from Sintered Semiconductor Quantum Dots: Cooperative Research and Development Final Report, CRADA number CRD-07-00226  

SciTech Connect (OSTI)

The NREL/Evident team will develop techniques to fabricate thin film solar cells where the absorption layers comprising the solar cells are derived from sintered semiconductor quantum dots.

Ginley, D. S.

2010-07-01T23:59:59.000Z

95

CENTER FOR AIR TRANSPORTATION SYSTEMS RESEARCHCENTER FOR AIR TRANSPORTATION SYSTEMS RESEARCH Education, Analysis and Research for the Next FrontierEducation, Analysis and Research for the Next Frontier  

E-Print Network [OSTI]

Education, Analysis and Research for the Next FrontierEducation, Analysis and Research for the Next Frontier and Research for the Next FrontierEducation, Analysis and Research for the Next Frontier Chapter 4 Review 0 100, Analysis and Research for the Next FrontierEducation, Analysis and Research for the Next Frontier Airline

96

TransForumNews from Argonne's Transportation Research Program www.transportation.anl.gov  

E-Print Network [OSTI]

page 10 A revolutionary advance in our understanding of how diesel engines work may unlock new at the local and regional level. 16 How Might Increased Biofuel Production Affect Midwest Water Supplies.S. Department of Energy's Advanced Research Projects Agency-Energy (ARPA-E), a government agency that funds

Kemner, Ken

97

Transportation  

E-Print Network [OSTI]

Transportation in ancient Egypt entailed the use of boats2007 Land transport in Roman Egypt: A study of economics andDieter 1991 Building in Egypt: Pharaonic stone masonry. New

Vinson, Steve

2013-01-01T23:59:59.000Z

98

Project Summary Report 0-4169-S PROJECTSUMMARYREPORT CENTER FOR TRANSPORTATION RESEARCH  

E-Print Network [OSTI]

Project Summary Report 0-4169-S ­ ­ PROJECTSUMMARYREPORT CENTER FOR TRANSPORTATION RESEARCH THE UNIVERSITY OF TEXAS AT AUSTIN Project Summary Report 0-469-S Project 0-469: Managing Rural Truck Traffic needs of the people and economy of rural Texas is not an easy mat- ter. Policies and procedures

Texas at Austin, University of

99

Project Summary Report 0-4485-S PROJECTSUMMARYREPORT CENTER FOR TRANSPORTATION RESEARCH  

E-Print Network [OSTI]

Project Summary Report 0-4485-S ­ ­ PROJECTSUMMARYREPORT CENTER FOR TRANSPORTATION RESEARCH THE UNIVERSITY OF TEXAS AT AUSTIN Project Summary Report 0-4485-S Project 0-4485: Design Methodology for Tiered- tant differences in the various design and analysis procedures were identified and summarized from

Texas at Austin, University of

100

Project Summary Report 0-2109-S 1 PROJECTSUMMARYREPORT CENTER FOR TRANSPORTATION RESEARCH  

E-Print Network [OSTI]

Project Summary Report 0-2109-S ­ 1 ­ PROJECTSUMMARYREPORT CENTER FOR TRANSPORTATION RESEARCH THE UNIVERSITY OF TEXAS AT AUSTIN Project Summary Report 0-2109-S Project 0-2109: Evaluate the Effects of Channel for many culvert design procedures and computer programs. While the FHWA equations remain the most widely

Texas at Austin, University of

Note: This page contains sample records for the topic "transportation dot research" 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

Research Article Effects of Alpine hydropower dams on particle transport and  

E-Print Network [OSTI]

Research Article Effects of Alpine hydropower dams on particle transport and lacustrine December 2006 Abstract. The effects of high-alpine hydropower damming on lacustrine sedimentation impact, such as by hydropower dam construction that form artifi- cial sediment sinks acting as manmade

Gilli, Adrian

102

Organized by the Transportation Sustainability Research Center (TSRC) at UC Berkeley Contact: Madonna Camel, TSRC Assistant Director  

E-Print Network [OSTI]

Organized by the Transportation Sustainability Research Center (TSRC) at UC Berkeley Contact-to-peer transportation services are rapidly hitting the streets. Systems for providing and sharing rides are evolving in most major urban areas of the U.S. Can these shared-use mobility services reduce transportation costs

Kammen, Daniel M.

103

Research Statement of Hamsa Balakrishnan The air transportation system is a complex, global system that transports over 2.1 billion  

E-Print Network [OSTI]

is important because of the high costs of delays and pollution today, as well as the projected doubling in airResearch Statement of Hamsa Balakrishnan The air transportation system is a complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge problem

Gummadi, Ramakrishna

104

Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion  

E-Print Network [OSTI]

Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge to the Joint Economic Committee of the US Senate, domestic air traffic delays in 2007 cost airlines over $19

105

Dot Density Maps Dot density maps, or dot maps, portray the geographic distribution of discrete phenomena  

E-Print Network [OSTI]

Dot Density Maps Dot density maps, or dot maps, portray the geographic distribution of discrete for representing geographic patterns. Dot density maps are particularly useful for understanding global distribution of the mapped phenomenon and comparing relative densities of different regions on the map. Dot

Klippel, Alexander

106

Project Information Form Project Title White Paper of Assessing Transportation Financing Options from a Green  

E-Print Network [OSTI]

or organization) US DOT $23,700 Total Project Cost $23,700 Agency ID or Contract Number DTRT13-G-UTC29 StartProject Information Form Project Title White Paper of Assessing Transportation Financing Options and End Dates June 15, 2014 to August 31, 2014 Brief Description of Research Project The Highway Trust

California at Davis, University of

107

Recent Progress in the Research on Ion and Electron Transport in Gases at Swarm Energies  

SciTech Connect (OSTI)

This paper deals with the presentation and discussion of recent research on the transport of electrons and ions in gases at low energies. Particular emphasis is placed on electron swarm experiments related with the negative differential conductivity of electrons in some gas mixtures, and with secondary ionisation processes due to the impact of metastables with neutrals (Penning ionisation). Ion transport is firstly addressed through some recent measurements on atomic and molecular systems for which both theory and experiment have reached a high degree of agreement, and also on those in which the ranges of the density-normalized electric field intensity E/N have been increased substantiality. Also, the recent advances on the application of transport theories dealing with inelastic collisions are presented, as well as some recent measurements of negative ions and charged clusters in gaseous mixtures, leading to the successful test of Blanc's law at low fields, to the experimental mobilities.

Urquijo, Jaime de [Centro de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, P.O. Box 48-3, 62251, Cuernavaca, Mor. (Mexico)

2004-12-01T23:59:59.000Z

108

A hybrid double-dot in silicon  

SciTech Connect (OSTI)

We report electrical measurements of a single arsenic dopant atom in the tunnel barrier of a silicon single-electron transistor (SET). In addition to performing the electrical characterisation of the individual dopants, we study the series electrical transport through the dopant and SET. We measure the bias triangles of this hybrid double-dot and show that we can tune the electrostatic coupling between the two sub-systems. Additionally, we measured SET in which an additional plunger gate allows the reduction of the electron number in the SET down to the few-electron regime where the dot presents well-defined spin configurations. Finally, we discuss the challenges of operating a dopant-dot hybrid system in the few-electron regime.

Gonzalez-Zalba, M. F.; Heiss, D.; Ferguson, A. J. [Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge (United Kingdom)

2013-12-04T23:59:59.000Z

109

Interference Effect in Multi-level Transport through a Quantum Dot Hisashi Aikawa, Kensuke Kobayashi, Akira Sano, Shingo Katsumoto, and Yasuhiro Iye  

E-Print Network [OSTI]

to the leads and the phase of traversing electrons is locked. We have detected the phase change at the vertices and a model to solve the problem of "in-phase Coulomb peaks" ubiquitously observed in transport through of Coulomb-diamond-like structures in the excitation spectrum. One of the two levels is strongly coupled

Katsumoto, Shingo

110

Research Overview of the Consortium for Advanced Research on Transport of Hydrocarbon in the  

E-Print Network [OSTI]

effort. Over the course of 87 days, crude oil was released into the Gulf of Mexico (GoM), before the well, Miami, USA Final, April 21, 2014 1 #12;Abstract CARTHE (http://carthe.org/) is a Gulf of Mexico Research Gulf of Mexico states and other four states. It fuses into one group investigators with unique

Ozgökmen, Tamay M.

111

Enriching Sustainable Transport Decisions: Inputs from Operations Research and the Management Sciences  

E-Print Network [OSTI]

to decision processes involving sustainable transportused to enrich sustainable transport decision processes andthe process of making decisions about sustainable transport

Wellar, Barry; Garrison, William

2009-01-01T23:59:59.000Z

112

Testing of a Transport Cask for Research Reactor Spent Fuel - 13003  

SciTech Connect (OSTI)

Since the beginning of the last decade three Latin American countries that operate research reactors - Argentina, Brazil and Chile - have been joining efforts to improve the regional capability in the management of spent fuel elements from the TRIGA and MTR reactors operated in the region. A main drive in this initiative, sponsored by the International Atomic Energy Agency, is the fact that no definite solution regarding the back end of the research reactor fuel cycle has been taken by any of the participating country. However, any long-term solution - either disposition in a repository or storage away from reactor - will involve at some stage the transportation of the spent fuel through public roads. Therefore, a licensed cask that provides adequate shielding, assurance of subcriticality, and conformance to internationally accepted safety, security and safeguards regimes is considered a strategic part of any future solution to be adopted at a regional level. As a step in this direction, a packaging for the transport of irradiated fuel for MTR and TRIGA research reactors was designed by the tri-national team and a half-scale model equipped with the MTR version of the internal basket was constructed in Argentina and Brazil and tested in Brazil. Three test campaigns have been carried out so far, covering both normal conditions of transportation and hypothetical accident conditions. After failing the tests in the first two test series, the specimen successfully underwent the last test sequence. A second specimen, incorporating the structural improvements in view of the previous tests results, will be tested in the near future. Numerical simulations of the free drop and thermal tests are being carried out in parallel, in order to validate the computational modeling that is going to be used as a support for the package certification. (authors)

Mourao, Rogerio P.; Leite da Silva, Luiz [Centro de Desenvolvimento da Tecnologia Nuclear, Belo Horizonte (Brazil)] [Centro de Desenvolvimento da Tecnologia Nuclear, Belo Horizonte (Brazil); Miranda, Carlos A.; Mattar Neto, Miguel [Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo (Brazil)] [Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo (Brazil); Quintana, Jose F.A.; Saliba, Roberto O. [Comision Nacional de Energia Atomica, Bariloche (Argentina)] [Comision Nacional de Energia Atomica, Bariloche (Argentina); Novara, Oscar E. [Comision Nacional de Energia Atomica, Buenos Aires (Argentina)] [Comision Nacional de Energia Atomica, Buenos Aires (Argentina)

2013-07-01T23:59:59.000Z

113

Transportation  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatusButler TinaContact-Information-Transmission SignTransport

114

A monthly report on transportation research, education, and outreach activities at the University of Minnesota TERRA update .................2  

E-Print Network [OSTI]

A monthly report on transportation research, education, and outreach activities at the University of Minnesota Inside · TERRA update .................2 · TZD regional conference ..3 · Faculty update on page 3 National bridge specifications updated with U of M research Former CTS direc- tor speaks

Minnesota, University of

115

MIT Center for Transportation & Logistics Distinguished Speakers Series  

E-Print Network [OSTI]

MIT Center for Transportation & Logistics Distinguished Speakers Series Richard A. Davey MBTA;Transportation Reform ­ Moving Forward Transportation Reform Governance & Oversight · MBTA Board reconfigured mirroring the MassDOT's Five (5) member Board. · MBTA remains a separate legal entity from MassDOT. · MBTA

Entekhabi, Dara

116

NRC Technical Research Program to Evaluate Extended Storage and Transportation of Spent Nuclear Fuel - 12547  

SciTech Connect (OSTI)

Any new direction proposed for the back-end of spent nuclear fuel (SNF) cycle will require storage of SNF beyond the current licensing periods. The Nuclear Regulatory Commission (NRC) has established a technical research program to determine if any changes in the 10 CFR part 71, and 72 requirements, and associated guidance might be necessary to regulate the safety of anticipated extended storage, and subsequent transport of SNF. This three part program of: 1) analysis of knowledge gaps in the potential degradation of materials, 2) short-term research and modeling, and 3) long-term demonstration of systems, will allow the NRC to make informed regulatory changes, and determine when and if additional monitoring and inspection of the systems is necessary. The NRC has started a research program to obtain data necessary to determine if the current regulatory guidance is sufficient if interim dry storage has to be extended beyond the currently approved licensing periods. The three-phased approach consists of: - the identification and prioritization of potential degradation of the components related to the safe operation of a dry cask storage system, - short-term research to determine if the initial analysis was correct, and - a long-term prototypic demonstration project to confirm the models and results obtained in the short-term research. The gap analysis has identified issues with the SCC of the stainless steel canisters, and SNF behavior. Issues impacting the SNF and canister internal performance such as high and low temperature distributions, and drying have also been identified. Research to evaluate these issues is underway. Evaluations have been conducted to determine the relative values that various types of long-term demonstration projects might provide. These projects or follow-on work is expected to continue over the next five years. (authors)

Einziger, R.E.; Compton, K.; Gordon, M.; Ahn, T.; Gonzales, H. [United States Nuclear Regulatory Commission, Rockville, Maryland 20852 (United States); Pan, Y. [Center for Nuclear Waste Regulatory Analyses, San Antonio, TX 78238 (United States)

2012-07-01T23:59:59.000Z

117

A quantum dot heterojunction photodetector  

E-Print Network [OSTI]

This thesis presents a new device architecture for photodetectors utilizing colloidally grown quantum dots as the principle photo-active component. We implement a thin film of cadmium selenide (CdSe) quantum dot sensitizers, ...

Arango, Alexi Cosmos, 1975-

2005-01-01T23:59:59.000Z

118

A Graphene Quantum Dot with a Single Electron Transistor as Integrated Charge Sensor  

E-Print Network [OSTI]

We have developed an etching process to fabricate a quantum dot and a nearby single electron transistor as a charge detector in a single layer graphene. The high charge sensitivity of the detector is used to probe Coulomb diamonds as well as excited spectrum in the dot, even in the regime where the current through the quantum dot is too small to be measured by conventional transport means. The graphene based quantum dot and integrated charge sensor serve as an essential building block to form a solid-state qubit in a nuclear-spin-free quantum world.

Ling-Jun Wang; Gang Cao; Tao Tu; Hai-Ou Li; Cheng Zhou; Xiao-Jie Hao; Zhan Su; Guang-Can Guo; Guo-Ping Guo; Hong-Wen Jiang

2010-08-28T23:59:59.000Z

119

Nuclear spin dynamics in double quantum dots: Fixed points, transients, and intermittency  

E-Print Network [OSTI]

Transport through spin-blockaded quantum dots provides a means for electrical control and detection of nuclear spin dynamics in the host material. Although such experiments have become increasingly popular in recent years, ...

Rudner, M. S.

120

Transportation Secure Data Center: Real-World Data for Transportation Planning and Land Use Analysis (Fact Sheet)  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database provides free-of-charge web-based access to valuable transportation data that can be used for: Transit planning, Travel demand modeling, Homeland Security evacuation planning, Alternative fuel station planning, and Validating transportation data from other sources. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

Not Available

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene  

E-Print Network [OSTI]

Here we report the fabrication and quantum transport measurements of gates controlled parallel-coupled double quantum dot on both bilayer and single layer graphene. It is shown that the interdot coupling strength of the parallel double dots can be effectively tuned from weak to strong regime by both the in-plane plunger gates and back gate. All the relevant energy scales and parameters of the graphene parallel-coupled double dot can be extracted from the honeycomb charge stability diagrams revealed through the transport measurements.

Lin-Jun Wang; Guo-Ping Guo; Da Wei; Gang Cao; Tao Tu; Ming Xiao; Guang-Can Guo; A. M. Chang

2011-04-22T23:59:59.000Z

122

Submitted 2/08 International Conference on Research in Air Transportation (ICRAT 2008) www.icrat.org Copyright Center for Air Transportation Systems Research (CATSR)/GMU 02/08  

E-Print Network [OSTI]

Submitted 2/08 International Conference on Research in Air Transportation (ICRAT 2008) www for future investment decisions and better tools to manage the system. The passenger flow simulation model protected by anti-trust collusion concerns and civil liberty privacy restrictions. Wang et al developed

123

Developing an Online Tool for Delivering Research Results: An Update to the Oregon Department of Transportation's Crash Reduction Factor Database  

E-Print Network [OSTI]

Developing an Online Tool for Delivering Research Results: An Update to the Oregon Department interactive online report (tool) can produce results that are easier for the user to access of Transportation's crash reduction factor (CRF) database were incorporated into an online tool. The paper describes

Bertini, Robert L.

124

State of Wisconsin/Department of Transportation RESEARCH PROGRESS REPORT FOR THE QUARTER ENDING: Dec 31, 2003  

E-Print Network [OSTI]

State of Wisconsin/Department of Transportation RESEARCH PROGRESS REPORT FOR THE QUARTER ENDING for evaluation are from Axim Concrete Technologies (CATEXOL 2000 SCA), Degussa Constuction Chemicals (Master. Manufacturers guidelines for addition rates of the admixtures will be evaluated for its effect on concrete

Wisconsin-Milwaukee, University of

125

Transportation Research Record: J. of the TRB, No. 2242, p. 55-63. Doi 10.3141/2242-07 FRAMEWORK FOR ASSESSING INDICATORS  

E-Print Network [OSTI]

Transportation Research Record: J. of the TRB, No. 2242, p. 55-63. Doi 10.3141/2242-07 FRAMEWORK FOR ASSESSING INDICATORS OF ENVIRONMENTAL IMPACTS IN THE TRANSPORT SECTOR Robert Joumard 1 , Henrik Gudmundsson 2 and Lennart Folkeson 3 1 IFSTTAR (French Institute of Science and Technology for Transport

Boyer, Edmond

126

A monthly report on transportation research, education, and outreach activities at the University of Minnesota April 2006 Katrina's impacts on infrastructure featured at  

E-Print Network [OSTI]

the transportation security research, education, and out- reach funding at the University, a new program is being developed to communicate University expertise to various federal fund- ing agencies and take advantageA monthly report on transportation research, education, and outreach activities at the University

Minnesota, University of

127

Chamber transport  

SciTech Connect (OSTI)

Heavy ion beam transport through the containment chamber plays a crucial role in all heavy ion fusion (HIF) scenarios. Here, several parameters are used to characterize the operating space for HIF beams; transport modes are assessed in relation to evolving target/accelerator requirements; results of recent relevant experiments and simulations of HIF transport are summarized; and relevant instabilities are reviewed. All transport options still exist, including (1) vacuum ballistic transport, (2) neutralized ballistic transport, and (3) channel-like transport. Presently, the European HIF program favors vacuum ballistic transport, while the US HIF program favors neutralized ballistic transport with channel-like transport as an alternate approach. Further transport research is needed to clearly guide selection of the most attractive, integrated HIF system.

OLSON,CRAIG L.

2000-05-17T23:59:59.000Z

128

DOT-7A Type A packaging design guide  

SciTech Connect (OSTI)

The purpose of this Design Guide is to provide instruction for designing a U.S. Department of Transportation Specification 7A (DOT-7A) Type A packaging. Another purpose for this Design Guide is to support the evaluation and testing activities that are performed on new designs by a U.S. Department of Energy (DOE) test facility. This evaluation and testing program is called the DOT-7A Program. When an applicant has determined that a DOT-7A packaging is needed and not commercially available, a design may be created according to this document. The design should include a packaging drawing, specifications, analysis report, operating instructions, and a Packaging Qualification Checklist; all of which should be forwarded to a DOE/HQ approved test facility for evaluation and testing. This report is being submitted through the Engineering Documentation System so that it may be used for reference and information purposes.

Kelly, D.L.

1995-01-23T23:59:59.000Z

129

Project Information Form Project Title White Paper on Climate Adaptation for State DOTs and Local Agencies  

E-Print Network [OSTI]

each agency or organization) DOT $30,000 Total Project Cost $30,000 Agency ID or Contract Number DTRT13Project Information Form Project Title White Paper on Climate Adaptation for State DOTs and Local-G-UTC29 Start and End Dates January 2014 to December 2014 Brief Description of Research Project

California at Davis, University of

130

21st Annual Transportation  

E-Print Network [OSTI]

would cost more than $40 billion over next 20 years ·! If used alone, state gas tax would need more than Investment Plan ·! Mn/DOT Statewide Transportation Plan #12;MHSIS goals ·! Develop a long range vision expansions ·!Fiscally-constrained approach #12;New investment strategy ·! Realistic ·! Innovative ·! Focuses

Minnesota, University of

131

Global Warming: Connecting the Dots  

E-Print Network [OSTI]

Global Warming: Connecting the Dots from Causes to Solutions* Jim Hansen 26 February 2007 National://www.columbia.edu/~jeh1/worldwatch_nov2006.pdf) 5. Communicating dangers and opportunities in global warming, Amer-16, 2006. (http://pubs.giss.nasa.gov/docs/2006/2006_Hansen.pdf) 8. Global warming: Connecting the dots from

Hansen, James E.

132

"Educating transportation professionals."  

E-Print Network [OSTI]

"Educating transportation professionals." Michael Demetsky Henry L. Kinnier Professor mjd of Virginia Charlottesville, VA 434.924.7464 Transportation Engineering & Management Research Our group works closely with the Virginia Center for Transportation Innovation and Research (VCTIR), located

Acton, Scott

133

Enforcement Guidance Supplement 98-02: DOE Enforcement Activities where Off-site Transportation Issues are also Present.  

Broader source: Energy.gov [DOE]

Recently several questions have arisen regarding the scope of Price-Anderson enforcement when transportation issues are directly or indirectly involved in an incident. These questions can be separated into two areas, (1) transportation issues that involve on-site transportation typically not regulated by the Department of Transportation (DOT), and (2) transportation issues that involve off-site transportation. This guidance addresses off-site transportation that is regulated by DOT and other state and federal agencies.

134

Real-time effective-action approach to the Anderson quantum dot  

E-Print Network [OSTI]

The non-equilibrium time evolution of an Anderson quantum dot is investigated. The quantum dot is coupled between two leads forming a chemical-potential gradient. We use Kadanoff-Baym dynamic equations within a non-perturbative resummation of the s-channel bubble chains. The effect of the resummation leads to the introduction of a frequency-dependent 4-point vertex. The tunneling to the leads is taken into account exactly. The method allows the determination of the transient as well as stationary transport through the quantum dot, and results are compared with different schemes discussed in the literature (fRG, ISPI, tDMRG and QMC).

Sexty, Denes; Pawlowski, Jan

2010-01-01T23:59:59.000Z

135

Real-time effective-action approach to the Anderson quantum dot  

E-Print Network [OSTI]

The non-equilibrium time evolution of an Anderson quantum dot is investigated. The quantum dot is coupled between two leads forming a chemical-potential gradient. We use Kadanoff-Baym dynamic equations within a non-perturbative resummation of the s-channel bubble chains. The effect of the resummation leads to the introduction of a frequency-dependent 4-point vertex. The tunneling to the leads is taken into account exactly. The method allows the determination of the transient as well as stationary transport through the quantum dot, and results are compared with different schemes discussed in the literature (fRG, ISPI, tDMRG and QMC).

Denes Sexty; Thomas Gasenzer; Jan Pawlowski

2010-12-20T23:59:59.000Z

136

Financial and Technical Resources for Completing Energy Efficiency Projects - The DOT/FTA Perspective  

E-Print Network [OSTI]

Financial and Technical Resources for Completing Energy Efficiency Projects ? The DOT/FTA Perspective Don Koski, FTA Region VI CATEE Conference November 9, 2011 ?FTA is part of the US DOT with a mission to support public transit through... of Transportation ? TIGER Grants ? FTA Programs ? FHWA Flex Funding ? United We Ride ? FHWA Livability Efforts ? State/Metro Planning ? Railroad Infrastructure U.S. Department of Agriculture ? Rural Efforts + Infrastructure Investment ?Urban/Rural...

Koski, D.

2011-01-01T23:59:59.000Z

137

Regulatory compliance guide for DOT-7A type A packaging design  

SciTech Connect (OSTI)

The purpose of this guide is to provide instruction for assuring that the regulatory design requirements for a DOT-7A Type A packaging are met. This guide also supports the testing and evaluation activities that are performed on new packaging designs by a DOE-approved test facility through the DOE`s DOT-7A Test Program. This Guide was updated to incorporate regulatory changes implemented by HM-169A (49 CFR, `Transportation`).

Kelly, D.L.

1996-06-04T23:59:59.000Z

138

Minnesota's Transportation Economic Development (TED)  

E-Print Network [OSTI]

Minnesota's Transportation Economic Development (TED) Pilot Program Center for Transportation Studies Transportation Research Conference May 24-25, 2011 #12;Transportation Role in Economic Development · Carefully targeted transportation infrastructure improvements will: ­ Stimulate new economic development

Minnesota, University of

139

A monthly report on transportation research, education, and outreach activities at the University of Minnesota August 2007 Oberstar Forum on October 8 to focus on nation's  

E-Print Network [OSTI]

A monthly report on transportation research, education, and outreach activities at the University, and updates will be posted on the Oberstar Forum Web page at www.cts.umn .edu/oberstarforum. CTS I-35W bridge electronic updates about student activities, special events, and other transportation-related news

Minnesota, University of

140

Transportation Secure Data Center: Real-World Data for Environmental and Air Quality Analysis (Fact Sheet)  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database provides free-of-charge web-based access to valuable transportation data that can be used for: Emissions and air pollution modeling, Vehicle energy and power analysis, Climate change impact studies, Alternative fuel station planning, and Validating transportation data from other sources. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

Not Available

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

Transportation Infrastructure and Sustainable Development  

E-Print Network [OSTI]

A Better Forecasting Tool for Transportation Decision-making,” Mineta Transportation Institute, San Jose Stateat the 2008 meeting of the Transportation Research Board and

Boarnet, Marlon G.

2008-01-01T23:59:59.000Z

142

A monthly report on transportation research, education, and outreach activities at the University of Minnesota September 2007 Rural safety institute.............. 2  

E-Print Network [OSTI]

A monthly report on transportation research, education, and outreach activities at the University-624-3708, cceconf5@umn.edu. Updates are posted on the Oberstar Forum Web page at www.cts.umn.edu/oberstarforum. CTS

Minnesota, University of

143

Research Positionsfor Development of Novel Green Air Conditioning and Refrigeration Systems for Transportation Vehicles  

E-Print Network [OSTI]

in refrigeration and heat pump systems, HVAC, porous media development/characterization, transport phenomena of compact and lightweight heat exchangers for evaporator and condenser; v) Development of heatdriven adsorption chillers tailored to service vehicles; vi) Development and implementation of thermal energy

Bahrami, Majid

144

NREL: Transportation Research - Transportation News  

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 and Evaluation PhotoSystems

145

INLAND PORT TRANSPORTATION EVALUATION GUIDE  

E-Print Network [OSTI]

INLAND PORT TRANSPORTATION EVALUATION GUIDE by Robert Harrison, Center for Transportation Research Transportation Institute, The Texas A&M University System; and Jolanda Prozzi, Center for Transportation Research, The University of Texas at Austin CENTER FOR TRANSPORTATION RESEARCH Bureau of Engineering Research

Texas at Austin, University of

146

U.S Department of Transportation Office of Public Affairs  

E-Print Network [OSTI]

U.S Department of Transportation Office of Public Affairs 1200 New Jersey Ave., S.E. Washington, DC Telephone: 202-366-0660 DOT Releases New Freight Transportation Data U.S. Department of Transportation, the most comprehensive publicly available data set of freight movement. "A transportation network

147

A monthly report on transportation research, education, and outreach activities at the University of Minnesota MVTA bus demo ..................... 2  

E-Print Network [OSTI]

, and the foundation for pressure on the federal government to increase support and local government to continue government across Min- nesota attended the third annual Airport Techni- cal Assistance Program (AirTAP) Fall construction grants to publicly owned airports. As a result, Mn/DOT will need to prior- itize projects

Minnesota, University of

148

Determination of energy scales in few-electron double quantum dots  

SciTech Connect (OSTI)

The capacitive couplings between gate-defined quantum dots and their gates vary considerably as a function of applied gate voltages. The conversion between gate voltages and the relevant energy scales is usually performed in a regime of rather symmetric dot-lead tunnel couplings strong enough to allow direct transport measurements. Unfortunately, this standard procedure fails for weak and possibly asymmetric tunnel couplings, often the case in realistic devices. We have developed methods to determine the gate voltage to energy conversion accurately in the different regimes of dot-lead tunnel couplings and demonstrate strong variations of the conversion factors. Our concepts can easily be extended to triple quantum dots or even larger arrays.

Taubert, D.; Ludwig, S. [Center for NanoScience and Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, Geschwister-Scholl-Platz 1, D-80539 Muenchen (Germany); Schuh, D. [Institut fuer Experimentelle Physik, Universitaet Regensburg, D-93040 Regensburg (Germany); Wegscheider, W. [Laboratory for Solid State Physics, ETH Zuerich, CH-8093 Zuerich (Switzerland)

2011-12-15T23:59:59.000Z

149

TRANSPORTATION ENERGY RESEARCH PIER Transportation Research  

E-Print Network [OSTI]

, a soybased B5 biodiesel blend, a soybased B20 biodiesel blend, and a #12;renewable diesel B100 fuel called requirements on all 4 test fuels. The soybased biodiesel blends provide slight improvements in carbon emissions. As with the benefits, the penalty generally grows from the soybased B5 biodiesel blend

150

TRANSPORTATION ENERGY RESEARCH PIER Transportation Research  

E-Print Network [OSTI]

University of California Riverside facilities. The primary biomass feedstock for this demonstration will be biosolids from the City of Riverside wastewater treatment system, comingled with other biomass feedstocks locally available renewable biomass feedstocks: (1) prepare the feedstocks to allow continuous feed

151

FY 2010 Report on Customer Service Texas Transportation Institute  

E-Print Network [OSTI]

, processes and products to improve the state and nation's transportation systems. The Texas Department and to identify areas of improvement. On-site interviews were conducted at 36 TxDOT offices (25 TxDOT Districts for a sponsoring agency or organization, and who determine overall direction for their agency's or company

152

Toolbox Safety Talk DOT Materials of Trade  

E-Print Network [OSTI]

: Corrosive Battery acid, Descaler Class 9: Miscellaneous Lithium batteries, ORM-D #12;Toolbox Safety Talk DOT

Pawlowski, Wojtek

153

Enhanced EP halftones with hexagonal dot packing  

E-Print Network [OSTI]

Enhanced EP halftones with hexagonal dot packing Tomasz J. Cholewo, Steve Weed, Brian Cooper advantages for electropho- tographic (EP) printing over conventional dot placement on a square grid [1] reported that hexagonal dot packing could have some unique benefits for EP printing. These were

Cholewo, Tomasz

154

Double superexchange in quantum dot mesomaterials  

E-Print Network [OSTI]

of defects,2 and resist oxidation better.3 In addition, these small dots use their slice of the solar. An idea that has been explored for larger dots is to encapsulate them within an inorganic amorphous matrix yet to be achieved. A second approach is to encapsulate the dots within an organic polymer blend.12

Wu, Zhigang

155

Transportation Secure Data Center: Real-World Data for Planning, Modeling and Analysis (Fact Sheet)  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database gives, metropolitan planning organizations, universities, national laboratories, air quality management districts, disaster planning agencies and auto manufacturers free-of-charge web-based access to valuable transportation data. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

Not Available

2013-01-01T23:59:59.000Z

156

Nontoxic quantum dot research improves solar cells  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohnSecurity Complex Non-destructivePolicyNontoxic

157

Project Summary Report 0-4958-S PROJECTSUMMARYREPORT CENTER FOR TRANSPORTATION RESEARCH  

E-Print Network [OSTI]

be compact, light, and safe for operations. What We Did ... Three different approaches of generating a linear is to develop a low- power, linear light source that matches the need of the line scan camera used in the Figure. . High-Power Laser Line Projector The researchers chose a 2-watt laser line generator that can form a 0

Texas at Austin, University of

158

The characterization of contaminant transport on a central Texas research facility  

E-Print Network [OSTI]

; Mostaghimi et al., 1988). The purpose of this study was to monitor the fate of certain agricultural chemicals and sediment on a research plot located in a river floodplain in central Texas. The site provided the unique opportunity to measure the quantity...

Schneider, Brian Meredith

1995-01-01T23:59:59.000Z

159

Patrick T. McGowen, P.E., Ph.D. Research Engineer, Western Transportation Institute / Civil Engineering  

E-Print Network [OSTI]

jointly appointed between the Western Transportation Institute (WTI) and Civil Engineering Department

McGowen, Patrick

160

Modeling of the quantum dot filling and the dark current of quantum dot infrared photodetectors  

SciTech Connect (OSTI)

A generalized drift-diffusion model for the calculation of both the quantum dot filling profile and the dark current of quantum dot infrared photodetectors is proposed. The confined electrons inside the quantum dots produce a space-charge potential barrier between the two contacts, which controls the quantum dot filling and limits the dark current in the device. The results of the model reasonably agree with a published experimental work. It is found that increasing either the doping level or the temperature results in an exponential increase of the dark current. The quantum dot filling turns out to be nonuniform, with a dot near the contacts containing more electrons than one in the middle of the device where the dot occupation approximately equals the number of doping atoms per dot, which means that quantum dots away from contacts will be nearly unoccupied if the active region is undoped.

Ameen, Tarek A.; El-Batawy, Yasser M.; Abouelsaood, A. A. [Department of Engineering Mathematics and Physics, Faculty of Engineering, Cairo University, Giza (Egypt)

2014-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

Director Position Center for Urban Transportation  

E-Print Network [OSTI]

Director Position Center for Urban Transportation The Center for Urban Transportation Research for state policymakers, transportation agencies, transportation professionals and the public. CUTR conducts of Transportation's Federal Transit Administration and Federal Highway Administration, the Florida Department

Arslan, Hüseyin

162

Delaware Transportation Infrastructure Forum Problem Identification Statements  

E-Print Network [OSTI]

2013 Delaware Transportation Infrastructure Forum Problem Identification Statements Sponsored by The Delaware Center for Transportation and the Delaware Department of Transportation Delaware Center for Transportation Your main resource for transportation education and research Identifying Important Issues Related

Firestone, Jeremy

163

Transportation YOU 2013 DC Youth Summit WTS Transportation YOU  

E-Print Network [OSTI]

Transportation YOU 2013 DC Youth Summit WTS Transportation YOU CTS Research Conference May 21, 2014 Lisa Rasmussen, WTS / Kimley-Horn and Associates, Inc #12;Transportation YOU 2013 DC Youth SummitTransportation YOU 2013 DC Youth Summit Agenda What is Transportation YOU? Transportation YOU ­ WTS Local Chapter

Minnesota, University of

164

A comparison between semi-spheroid- and dome-shaped quantum dots coupled to wetting layer  

SciTech Connect (OSTI)

During the epitaxial growth method, self-assembled semi-spheroid-shaped quantum dots (QDs) are formed on the wetting layer (WL). However for sake of simplicity, researchers sometimes assume semi-spheroid-shaped QDs to be dome-shaped (hemisphere). In this work, a detailed and comprehensive study on the difference between electronic and transition properties of dome- and semi-spheroid-shaped quantum dots is presented. We will explain why the P-to-S intersubband transition behaves the way it does. The calculated results for intersubband P-to-S transition properties of quantum dots show two different trends for dome-shaped and semi-spheroid-shaped quantum dots. The results are interpreted using the probability of finding electron inside the dome/spheroid region, with emphasis on the effects of wetting layer. It is shown that dome-shaped and semi-spheroid-shaped quantum dots feature different electronic and transition properties, arising from the difference in lateral dimensions between dome- and semi-spheroid-shaped QDs. Moreover, an analogy is presented between the bound S-states in the quantum dots and a simple 3D quantum mechanical particle in a box, and effective sizes are calculated. The results of this work will benefit researchers to present more realistic models of coupled QD/WL systems and explain their properties more precisely.

Shahzadeh, Mohammadreza; Sabaeian, Mohammad, E-mail: Sabaeian@scu.ac.ir [Physics Department, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, 61357-43135 (Iran, Islamic Republic of)

2014-06-15T23:59:59.000Z

165

Quantum Dot Light Emitting Diode  

SciTech Connect (OSTI)

The project objective is to create low cost coatable inorganic light emitting diodes, composed of quantum dot emitters and inorganic nanoparticles, which have the potential for efficiencies equivalent to that of LEDs and OLEDs and lifetime, brightness, and environmental stability between that of LEDs and OLEDs. At the end of the project the Recipient shall gain an understanding of the device physics and properties of Quantum-Dot LEDs (QD-LEDs), have reliable and accurate nanocrystal synthesis routines, and have formed green-yellow emitting QD-LEDs with a device efficiency greater than 3 lumens/W, a brightness greater than 400 cd/m2, and a device operational lifetime of more than 1000 hours. Thus the aim of the project is to break the current cost-efficiency paradigm by creating novel low cost inorganic LEDs composed of inorganic nanoparticles.

Keith Kahen

2008-07-31T23:59:59.000Z

166

Quantum Dot Light Emitting Diode  

SciTech Connect (OSTI)

The project objective is to create low cost coatable inorganic light emitting diodes, composed of quantum dot emitters and inorganic nanoparticles, which have the potential for efficiencies equivalent to that of LEDs and OLEDs and lifetime, brightness, and environmental stability between that of LEDs and OLEDs. At the end of the project the Recipient shall gain an understanding of the device physics and properties of Quantum-Dot LEDs (QD-LEDs), have reliable and accurate nanocrystal synthesis routines, and have formed green-yellow emitting QD-LEDs with a device efficiency greater than 3 lumens/W, a brightness greater than 400 cd/m{sup 2}, and a device operational lifetime of more than 1000 hours. Thus the aim of the project is to break the current cost-efficiency paradigm by creating novel low cost inorganic LEDs composed of inorganic nanoparticles.

Kahen, Keith

2008-07-31T23:59:59.000Z

167

Test and evaluation document for DOT Specification 7A Type A Packaging. Revision 3  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has been conducting, through several of its operating contractors, an evaluation and testing program to qualify Type A radioactive material packagings per US Department of Transportation (DOT) Specification 7A (DOT-7A) of the Code of Federal Regulations (CFR), Title 49, Part 178 (49 CFR 178). The program is currently administered by the DOE, Office of Facility Safety Analysis, DOE/EH-32, at DOE-Headquarters (DOE-HQ) in Germantown, Maryland. This document summarizes the evaluation and testing performed for all of the packagings successfully qualified in this program.

NONE

1996-01-30T23:59:59.000Z

168

Review of PennDOT Publication 408 for the use of recycled co-product materials: Summary recommendations. Final report  

SciTech Connect (OSTI)

The purpose of this project is to decrease the institutional or perceived institutional barriers for the use of recycled and co-product materials including glass, steel slag, foundry sand, fly ash, shingle tabs, reclaimed Portland cement concrete, and scrap tires in the Pennsylvania Department of Transportation`s (PennDOT) Publications 408, Commonwealth of Pennsylvania Department of Transportation Specifications. This report reviews potential uses of each material, identifies the project that used these materials, and provides direction for future specification development.

Van Tassel, E.L.; Tikalsky, P.J.; Christensen, D.W.

1999-04-30T23:59:59.000Z

169

Dynamics of Quantum Dot Photonic Crystal Lasers  

E-Print Network [OSTI]

Quantum dot photonic crystal membrane lasers were fabricated and the large signal modulation characteristics were studied. We find that the modulation characteristics of quantum dot lasers can be significantly improved using cavities with large spontaneous emission coupling factor. Our experiments show, and simulations confirm, that the modulation rate is limited by the rate of carrier capture into the dots to around 30GHz in our present system.

Bryan Ellis; Ilya Fushman; Dirk Englund; Bingyang Zhang; Yoshihisa Yamamoto; Jelena Vuckovic

2007-03-07T23:59:59.000Z

170

TRANSPORTATION Annual Report  

E-Print Network [OSTI]

2003 CENTER FOR TRANSPORTATION STUDIES Annual Report #12;Center for Transportation Studies University of Minnesota 200 Transportation and Safety Building 511 Washington Avenue S.E. Minneapolis, MN publication is a report of transportation research, education, and outreach activities for the period July

Minnesota, University of

171

PalladianDigest Transportation  

E-Print Network [OSTI]

PalladianDigest CONNECT. EMPOWER. GROW. Tackling Transportation Challenges Nebraska has been a vital link in the nation's transportation system since the days when carts, wagons to University of Nebraska­Lincoln research. That's fine with UNL transportation researchers, said Larry Rilett

Farritor, Shane

172

Nuclear Spin Dynamics in Double Quantum Dots: Multi-Stability, Dynamical Polarization, Criticality and Entanglement  

E-Print Network [OSTI]

We theoretically study the nuclear spin dynamics driven by electron transport and hyperfine interaction in an electrically-defined double quantum dot (DQD) in the Pauli-blockade regime. We derive a master-equation-based framework and show that the coupled electron-nuclear system displays an instability towards the buildup of large nuclear spin polarization gradients in the two quantum dots. In the presence of such inhomogeneous magnetic fields, a quantum interference effect in the collective hyperfine coupling results in sizable nuclear spin entanglement between the two quantum dots in the steady state of the evolution. We investigate this effect using analytical and numerical techniques, and demonstrate its robustness under various types of imperfections.

Martin J. A. Schuetz; Eric M. Kessler; Lieven M. K. Vandersypen; J. Ignacio Cirac; Geza Giedke

2014-05-30T23:59:59.000Z

173

NREL: Transportation Research - Capabilities  

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 and ResourcesOtherForecastingAlternative Fuel FleetCapabilities

174

NREL: Transportation Research - Facilities  

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 and

175

NREL: Transportation Research - News  

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 and Evaluation Photo ofHydraulic HybridNews NREL

176

NREL: Transportation Research - Projects  

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 and Evaluation Photo ofHydraulic

177

NREL: Transportation Research - Publications  

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 and Evaluation Photo ofHydraulicPublications NREL

178

NREL: Transportation Research - Webmaster  

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 and EvaluationManagement Image of two

179

Engineering of quantum dot photon sources via electro-elastic fields  

E-Print Network [OSTI]

The possibility to generate and manipulate non-classical light using the tools of mature semiconductor technology carries great promise for the implementation of quantum communication science. This is indeed one of the main driving forces behind ongoing research on the study of semiconductor quantum dots. Often referred to as artificial atoms, quantum dots can generate single and entangled photons on demand and, unlike their natural counterpart, can be easily integrated into well-established optoelectronic devices. However, the inherent random nature of the quantum dot growth processes results in a lack of control of their emission properties. This represents a major roadblock towards the exploitation of these quantum emitters in the foreseen applications. This chapter describes a novel class of quantum dot devices that uses the combined action of strain and electric fields to reshape the emission properties of single quantum dots. The resulting electro-elastic fields allow for control of emission and binding energies, charge states, and energy level splittings and are suitable to correct for the quantum dot structural asymmetries that usually prevent these semiconductor nanostructures from emitting polarization-entangled photons. Key experiments in this field are presented and future directions are discussed.

Rinaldo Trotta; Armando Rastelli

2015-03-01T23:59:59.000Z

180

Thick-shell nanocrystal quantum dots  

DOE Patents [OSTI]

Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm and an outer shell, where said outer shell comprises multiple monolayers, wherein at least 30% of the quantum dots have an on-time fraction of 0.80 or greater under continuous excitation conditions for a period of time of at least 10 minutes.

Hollingsworth, Jennifer A. (Los Alamos, NM); Chen, Yongfen (Eugene, OR); Klimov, Victor I. (Los Alamos, NM); Htoon, Han (Los Alamos, NM); Vela, Javier (Los Alamos, NM)

2011-05-03T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

Radioactive material (RAM) transportation accident and incident experience in the U.S.A. (1971--1997)  

SciTech Connect (OSTI)

The Radioactive Materials Incident Report (RMIR) database was developed in 1981 at the Transportation Technology Center of Sandia National Laboratories to support its research and development activities for the US Department of Energy (DOE). This database contains information about radioactive materials transportation incidents that have occurred in the US since 1971. These data were drawn from the US Department of Transportation`s (DOT) Hazardous Materials Incident Report system, from Nuclear Regulatory Commission (NRC) files, and from various agencies including state radiological control offices. Support for the RMIR data base is funded by the National Transportation Program (EM-70) of the US Department of Energy. Transportation events in RMIR are classified in one of the following ways: as a transportation accident, as a handling accident, or as a reported incident. This presentation will provide definitions for these classifications and give examples of each. The primary objective of this presentation is to provide information on nuclear materials transportation accident incident events in the US for the period 1971--1997. Among the areas to be examined are: transportation accidents by mode, package response during accidents and an examination of accidents where release of contents has occurred.

McClure, J.D.; Yoshimura, H.R.; Fagan, H.F. [Sandia National Labs., Albuquerque, NM (United States). Transportation Systems Analysis Dept.; Thomas, T. [Dept. of Energy National Transportation Program (United States)

1997-11-01T23:59:59.000Z

182

Phonon Mediated Off-Resonant Quantum Dot-Cavity Coupling  

E-Print Network [OSTI]

A theoretical model for the phonon-mediated off-resonant coupling between a quantum dot and a cavity, under resonant excitation of the quantum dot, is presented. We show that the coupling is caused by electron-phonon interaction in the quantum dot and is enhanced by the cavity. We analyze recently observed resonant quantum dot spectroscopic data by our theoretical model.

Arka Majumdar; Yiyang Gong; Erik D. Kim; Jelena Vuckovic

2010-12-14T23:59:59.000Z

183

Semiconductor Quantum Dots and Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells  

E-Print Network [OSTI]

to Third-Generation Photovoltaic Solar Cells A. J. Nozik,*,, M. C. Beard, J. M. Luther, M. Law,§ R. J. Applications: Quantum Dot Solar Cells 6884 6.1. Quantum Dot Solar Cell Configurations 6885 6.1.1. Photoelectrodes Composed of Quantum Dot Arrays 6885 6.1.2. Quantum Dot-Sensitized Nanocrystalline TiO2 Solar Cells

George, Steven C.

184

The Fluid Interface Reactions Structures and Transport (FIRST) EFRC (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)  

SciTech Connect (OSTI)

'The Fluid Interface Reactions Structures and Transport (FIRST) EFRC' was submitted by FIRST to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. FIRST, an EFRC directed by David J. Wesolowski at the Oak Ridge National Laboratory is a partnership of scientists from nine institutions: Oak Ridge National Laboratory (lead), Argonne National Laboratory, Drexel University, Georgia State University, Northwestern University, Pennsylvania State University, Suffolk University, Vanderbilt University, and University of Virginia. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of Fluid Interface Reactions, Structures and Transport Center is 'to develop quantitative and predictive models of the unique nanoscale environment at fluid-solid interfaces that will enable transformational advances in electrical energy storage and heterogeneous catalysis for solar fuels.' Research topics are: catalysis (biomass, CO{sub 2}, water), electrocatalysis, photocatalysis, photoelectrocatalysis, solar fuels, solar electrodes, electrical energy storage, batteries, capacitors, battery electrodes, electrolytes, extreme environment, CO{sub 2} (convert), greenhouse gas, microelectromechanical systems (MEMS), interfacial characterization, matter by design, novel materials synthesis, and charge transport.

Wesolowski, David J. (Director, FIRST - Fluid Interface Reactions, Structures, and Transport Center) [Director, FIRST - Fluid Interface Reactions, Structures, and Transport Center; FIRST Staff

2011-05-01T23:59:59.000Z

185

The Fluid Interface Reactions Structures and Transport (FIRST) EFRC (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)  

ScienceCinema (OSTI)

'The Fluid Interface Reactions Structures and Transport (FIRST) EFRC' was submitted by FIRST to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. FIRST, an EFRC directed by David J. Wesolowski at the Oak Ridge National Laboratory is a partnership of scientists from nine institutions: Oak Ridge National Laboratory (lead), Argonne National Laboratory, Drexel University, Georgia State University, Northwestern University, Pennsylvania State University, Suffolk University, Vanderbilt University, and University of Virginia. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of Fluid Interface Reactions, Structures and Transport Center is 'to develop quantitative and predictive models of the unique nanoscale environment at fluid-solid interfaces that will enable transformational advances in electrical energy storage and heterogeneous catalysis for solar fuels.' Research topics are: catalysis (biomass, CO{sub 2}, water), electrocatalysis, photocatalysis, photoelectrocatalysis, solar fuels, solar electrodes, electrical energy storage, batteries, capacitors, battery electrodes, electrolytes, extreme environment, CO{sub 2} (convert), greenhouse gas, microelectromechanical systems (MEMS), interfacial characterization, matter by design, novel materials synthesis, and charge transport.

Wesolowski, David J. (Director, FIRST - Fluid Interface Reactions, Structures, and Transport Center); FIRST Staff

2011-11-02T23:59:59.000Z

186

Energy Storage and Transportation  

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

Storage and Transportation INL Logo Search Skip Navigation Links Home Newsroom About INL Careers Research Programs Energy and Environment National and Homeland Security New Energy...

187

Phonon-hopping thermal conduction in quantum dot superlattices Manu Shamsa, Weili Liu, and Alexander A. Balandina  

E-Print Network [OSTI]

or polycrystalline materials in terms of thermal transport. © 2005 American Institute of Physics. DOI: 10 strongly depends on interface conditions, is considered as a major thermal resistive mecha- nismPhonon-hopping thermal conduction in quantum dot superlattices Manu Shamsa, Weili Liu

188

Excitonic enhancement of nonradiative energy transfer from a quantum well in the optical near field of energy gradient quantum dots  

E-Print Network [OSTI]

. Phys. 111, 113714 (2012) Transport of indirect excitons in a potential energy gradient Appl. Phys. Lett 30 April 2012; published online 13 June 2012) We report strong exciton migration with an efficiency (QWs) to colloidal nanocrystal quantum dots (NQDs) is criti- cal to the energy efficiency in hybrid

Demir, Hilmi Volkan

189

Selected construction contract administration standard operation procedures for Texas Department of Transportation, Odessa District  

E-Print Network [OSTI]

In order to achieve the stated goal of reducing the final closing procedure time cycle for construction projects at the Texas Department of Transportation (TxDOT) Odessa District, several standard operating procedures (SOPs) for project construction...

Reachi, Santiago

2004-09-30T23:59:59.000Z

190

Photodetectors based on colloidal quantum dots  

E-Print Network [OSTI]

Inspired by recent work demonstrating photocurrent enhancement in quantum-dot (QD) solids via post-deposition chemical annealing and by recent successes incorporating single monolayers of QDs in light-emitting devices ...

Oertel, David C. (David Charles)

2007-01-01T23:59:59.000Z

191

Synthesis and characterization of infrared quantum dots  

E-Print Network [OSTI]

This thesis focuses on the development of synthetic methods to create application ready quantum dots (QDs) in the infrared for biological imaging and optoelectronic devices. I concentrated primarily on controlling the size ...

Harris, Daniel Kelly

2014-01-01T23:59:59.000Z

192

Nuclear Instruments and Methods in Physics Research A 514 (2003) 150155 Laser detection of radiation enhanced electron transport in  

E-Print Network [OSTI]

to be enhanced substantially by X-ray radiation-induced damage as detected by a novel fast-pulsed laser technique by radiation-induced neutral traps in the oxide [4]. In particular, optical SHG has become an extremely useful of radiation enhanced electron transport in ultra-thin oxides R. Pasternaka, *, Y.V. Shirokayaa , Z. Markaa , J

Tolk, Norman H.

193

WATER RESOURCES RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Numerical Investigations on Ergodicity of Solute Transport in  

E-Print Network [OSTI]

1. Introduction [2] It is generally admitted that groundwater quality is mainly affected groundwater system. The latter, which is the cen- tral problem in stochastic modeling, is generally referred- sivities. INDEX TERMS: 1831 Hydrology: Groundwater quality; 1832 Hydrology: Ground- water transport; 1869

Suciu, Nicolae

194

Growth and optical characterization of multilayers of InGaN quantum dots  

E-Print Network [OSTI]

carried out using a two photon excitation technique employing a picosecond mode-locked Ti-sapphire laser emitting at 790 nm. Samples were mounted in a cold -finger cryostat that could be cooled down to 4.2 K and the laser was focused through a microscope... GaN quantum dots Article Type: Research Paper Section/Category: General subjects Keywords: B2. InGaN quantum dots; A1. Photoluminescence; B1. Nitrides; A3. Metal-organic vapour phase epitaxy Corresponding Author: Dr Tongtong Zhu, Ph...

Zhu, Tontong; El-Ella, Haitham; Reid, Benjamin; Holmes, Mark; Taylor, Robert; Kappers, Menno; Oliver, Rachel

2012-01-01T23:59:59.000Z

195

Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics  

E-Print Network [OSTI]

product is what matters for PCE, therefore their values atdevices with more than 1% PCE were Schottky cells [36–38],cell with greater than 15% PCE is reached [42]. The Schottky

Padilla, Derek

2013-01-01T23:59:59.000Z

196

DOT Awards University Transportation Centers $63 Million | Department of  

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 in Review: TopEnergy DOE Theory9-9260-2003October 02,(July 2013)

197

An environmental impact assessment of quantum dot photovoltaics (QDPV) from raw material acquisition through use  

E-Print Network [OSTI]

An environmental impact assessment of quantum dot photovoltaics (QDPV) from raw material: Life cycle assessment Quantum dots Nanophotovoltaics Quantum dot photovoltaic modules Solar energy Assessment (LCA) of a proposed type of nanophotovoltaic, quantum dot photovoltaic (QDPV) module. The LCA

Illinois at Chicago, University of

198

Green synthesis of highly efficient CdSe quantum dots for quantum-dots-sensitized solar cells  

SciTech Connect (OSTI)

Green synthesis of CdSe quantum dots for application in the quantum-dots-sensitized solar cells (QDSCs) is investigated in this work. The CdSe QDs were prepared with glycerol as the solvent, with sharp emission peak, full width at half maximum around 30?nm, and absorption peak from 475?nm to 510?nm. The reaction is environmental friendly and energy saving. What's more, the green synthesized CdSe QDs are coherence to the maximum remittance region of the solar spectrum and suitable as sensitizers to assemble onto TiO{sub 2} electrodes for cell devices application. What's more, the dynamic procedure of the carriers' excitation, transportation, and recombination in the QDSCs are discussed. Because the recombination of the electrons from the conduction band of TiO{sub 2}'s to the electrolyte affects the efficiency of the solar cells greatly, 3-Mercaptopropionic acid capped water-dispersible QDs were used to cover the surface of TiO{sub 2}. The resulting green synthesized CdSe QDSCs with Cu{sub 2}S as the electrode show a photovoltaic performance with a conversion efficiency of 3.39%.

Gao, Bing; Shen, Chao; Zhang, Mengya; Yuan, Shuanglong; Yang, Yunxia, E-mail: yangyunxia@ecust.edu.cn, E-mail: grchen@ecust.edu.cn; Chen, Guorong, E-mail: yangyunxia@ecust.edu.cn, E-mail: grchen@ecust.edu.cn [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Zhang, Bo [Department of Physics, East China University of Science and Technology, Shanghai 200237 (China)

2014-05-21T23:59:59.000Z

199

Texas State Planning Region 3 Report of Regional Transportation Coordination  

E-Print Network [OSTI]

of the 24 regions studying public transportation in their area was charged with assessing Barriers, Constraints and Best Practices in public transportation. This Coordination Committee addressed this issue with enthusiasm, generating significant topics...DOT requirement that all vehicles be ADA compliant, Medicaid restrictions and Insurance as significant barriers to public transportation. Best practices included sharing of information regarding this project through publication in rural newspapers, inter...

Nortex Regional Planning Commission

2006-12-01T23:59:59.000Z

200

Lightweight materials for transportation: Program plan  

SciTech Connect (OSTI)

This Program Plan has been prepared by the Office of Transportation Materials in response to a request by the House Committee on Appropriations. It recognizes that a significant commitment to long-term, stable materials research and development (R&D) is required to realize the benefits of lighter weight vehicles, including economic, environmental and energy related benefits. Extensive input was obtained from the major US automakers and from representative materials and component suppliers. Considerable interaction with the key members of the US Automotive Materials Partnership (USAMP) has ensured consistency of technical direction. The program will support R&D activity at industrial sites through competitively bid subcontracts with cost sharing anticipated at 30--50%, with the higher amounts in process scale-up and manufacturing technology development. The recommended LWM Program will enable industry to develop pecessary technology by utilizing their capabilities as well as accessing supporting technology at national laboratories, universities, ongoing program activity at NASA, DoD, DOT, NIST, etc., and thereby leverage industry resources through integrated team approaches. Many individual program efforts are currently in place that address small portions of the overall needs of the LWM Program, both within DOE and in other agencies. Cognizance of these and overall integration of research activities are planned as significant program management tasks. Because of the international nature of the automobile business, benchmarking of foreign technology and tracking of worldwide developments are also key program elements.

Not Available

1993-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

http://ctr.utk.edu transportation  

E-Print Network [OSTI]

http://ctr.utk.edu center for transportation research CenterforTransportationResearch 309Conference01-1301-012-002-06 DOP: 1/06 The National Transportation Research Center (NTRC), created by CTR valu- able contributions to the future of transportation. CTR is associated with the UT departments

Tennessee, University of

202

Nanostructured architectures for colloidal quantum dot solar cells  

E-Print Network [OSTI]

This thesis introduces a novel ordered bulk heterojunction architecture for colloidal quantum dot (QD) solar cells. Quantum dots are solution-processed nanocrystals whose tunable bandgap energies make them a promising ...

Jean, Joel, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

203

Research and Development of Proton-Exchange Membrane (PEM) Fuel Cell System for Transportation Applications: Initial Conceptual Design Report  

SciTech Connect (OSTI)

This report addresses Task 1.1, model development and application, and Task 1.2, vehicle mission definition. Overall intent is to produce a methanol-fueled 10-kW power source, and to evaluate electrochemical engine (ECE) use in transportation. Major achievements include development of an ECE power source model and its integration into a comprehensive power source/electric vehicle propulsion model, establishment of candidate FCV (fuel cell powered electric vehicle) mission requirements, initial FCV studies, and a candidate FCV recommendation for further study.

Not Available

1993-11-30T23:59:59.000Z

204

Nuclear Instruments and Methods in Physics Research A 542 (2005) 134141 Study of water distribution and transport in a polymer  

E-Print Network [OSTI]

Nuclear Instruments and Methods in Physics Research A 542 (2005) 134­141 Study of water has been developed at the Penn State Breazeale Nuclear Reactor. Neutron images allow us to visualize

Mench, Matthew M.

205

Additive Manufacturing Opportunities for Transportation | ornl...  

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

Additive Manufacturing Opportunities for Transportation Mar 13 2015 10:00 AM - 11:00 AM Lonnie Love, Manufacturing Systems Research Group Transportation Science Seminar Series...

206

Fast quantum dot single photon source triggered at telecommunications wavelength  

E-Print Network [OSTI]

We demonstrate a quantum dot single photon source at 900 nm triggered at 300 MHz by a continuous wave telecommunications wavelength laser followed by an electro-optic modulator. The quantum dot is excited by on-chip-generated second harmonic radiation, resonantly enhanced by a GaAs photonic crystal cavity surrounding the InAs quantum dot. Our result suggests a path toward the realization of telecommunications-wavelength-compatible quantum dot single photon sources with speeds exceeding 1 GHz.

Kelley Rivoire; Sonia Buckley; Arka Majumdar; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2010-12-20T23:59:59.000Z

207

MICHIGAN DOT State Report Answers  

E-Print Network [OSTI]

for each grade of concrete. · Conducting quality control, sampling, testing, and inspection during all phases of the concrete work. The department will not sample or test for quality control or assist, · Sample and test the fresh concrete for acceptance. · Mold, transport and cure the concrete strength test

208

Location deterministic biosensing from quantum-dot-nanowire assemblies  

SciTech Connect (OSTI)

Semiconductor quantum dots (QDs) with high fluorescent brightness, stability, and tunable sizes, have received considerable interest for imaging, sensing, and delivery of biomolecules. In this research, we demonstrate location deterministic biochemical detection from arrays of QD-nanowire hybrid assemblies. QDs with diameters less than 10?nm are manipulated and precisely positioned on the tips of the assembled Gold (Au) nanowires. The manipulation mechanisms are quantitatively understood as the synergetic effects of dielectrophoretic (DEP) and alternating current electroosmosis (ACEO) due to AC electric fields. The QD-nanowire hybrid sensors operate uniquely by concentrating bioanalytes to QDs on the tips of nanowires before detection, offering much enhanced efficiency and sensitivity, in addition to the position-predictable rationality. This research could result in advances in QD-based biomedical detection and inspires an innovative approach for fabricating various QD-based nanodevices.

Liu, Chao [Materials Science and Engineering Program, Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712 (United States); Kim, Kwanoh [Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas 78712 (United States); Fan, D. L., E-mail: dfan@austin.utexas.edu [Materials Science and Engineering Program, Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712 (United States); Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas 78712 (United States)

2014-08-25T23:59:59.000Z

209

Quantum dots in bio-imaging: Revolution by the small  

SciTech Connect (OSTI)

Visual analysis of biomolecules is an integral avenue of basic and applied biological research. It has been widely carried out by tagging of nucleotides and proteins with traditional fluorophores that are limited in their application by features such as photobleaching, spectral overlaps, and operational difficulties. Quantum dots (QDs) are emerging as a superior alternative and are poised to change the world of bio-imaging and further its applications in basic and applied biology. The interdisciplinary field of nanobiotechnology is experiencing a revolution and QDs as an enabling technology have become a harbinger of this hybrid field. Within a decade, research on QDs has evolved from being a pure science subject to the one with high-end commercial applications.

Arya, Harinder [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Kaul, Zeenia [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Wadhwa, Renu [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Taira, Kazunari [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Hirano, Takashi [Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, 7 Ibaraki 305-8562 (Japan); Kaul, Sunil C. [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan)]. E-mail: s-kaul@aist.go.jp

2005-04-22T23:59:59.000Z

210

Engineered Quantum Dot Single Photon Sources  

E-Print Network [OSTI]

Fast, high efficiency, and low error single photon sources are required for implementation of a number of quantum information processing applications. The fastest triggered single photon sources to date have been demonstrated using epitaxially grown semiconductor quantum dots (QDs), which can be conveniently integrated with optical microcavities. Recent advances in QD technology, including demonstrations of high temperature and telecommunications wavelength single photon emission, have made QD single photon sources more practical. Here we discuss the applications of single photon sources and their various requirements, before reviewing the progress made on a quantum dot platform in meeting these requirements.

Sonia Buckley; Kelley Rivoire; Jelena Vuckovic

2012-10-03T23:59:59.000Z

211

Bilayer graphene quantum dot defined by topgates  

SciTech Connect (OSTI)

We investigate the application of nanoscale topgates on exfoliated bilayer graphene to define quantum dot devices. At temperatures below 500 mK, the conductance underneath the grounded gates is suppressed, which we attribute to nearest neighbour hopping and strain-induced piezoelectric fields. The gate-layout can thus be used to define resistive regions by tuning into the corresponding temperature range. We use this method to define a quantum dot structure in bilayer graphene showing Coulomb blockade oscillations consistent with the gate layout.

Müller, André; Kaestner, Bernd; Hohls, Frank; Weimann, Thomas; Pierz, Klaus; Schumacher, Hans W., E-mail: hans.w.schumacher@ptb.de [Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig (Germany)

2014-06-21T23:59:59.000Z

212

NREL: Transportation Research - Transportation and Hydrogen Newsletter...  

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

illustration showing the outside of an electric vehicle with some portion of the drive train shown in a cutaway. DOE EV Everywhere goals for all-electric vehicles were set in...

213

NREL: Transportation Research - Sustainable Transportation Basics  

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 and Evaluation Photo

214

NREL: Transportation Research - Transportation Deployment Support  

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 and Evaluation PhotoSystems Analysis

215

Shortle, J., Y. Zhang, J. Wang. 2010. Statistical characteristics of aircraft arrival tracks. To appear in Transportation Research Record. 1  

E-Print Network [OSTI]

or improving the existing level of safety. Several researchers have measured the statistical distributions of aircraft separations on arrival, both in terms of distance and time. References (3, 4, 5) measured using radar data (6, 7, 8) and multilateration data (9, 10, 11). Reference (12) uses multilateration

216

PhD scholarship on "Particle transport and clustering in stratified turbulent flows" funded by the Research  

E-Print Network [OSTI]

production in thermal power plants. Additionally, there will also be a coupling between this work, and the phenomenon of turbulent thermal diffusion (TTD). The research work will focus both on computer simulations (Direct Numerical Simulations) and on modelling of the particle-embedded fluid-solid interfaces

Brandenburg, Axel

217

INCENTIVES FOR ACCURACY IN ANALYST RESEARCH Patricia CRIFO  

E-Print Network [OSTI]

and ethical concerns. The recent scandals in Wall Street research that followed the bursting of the dot-com bubble has led to an examination of the perverse role of analysts incentives in providing biased research

Paris-Sud XI, Université de

218

Current status, research needs, and opportunities in applications of surface processing to transportation and utilities technologies. Proceedings of a December 1991 workshop  

SciTech Connect (OSTI)

Goal of surface processing is to develop innovative methods of surface modification and characterization for optimum performance and environmental protection for cost-effective operational lifetimes of systems, materials, and components used in transportation and utilities. These proceedings document the principal discussions and conclusions reached at the workshop; they document chapters about the current status of surface characterization with focus on composition, structure, bonding, and atomic-scale topography of surfaces. Also documented are chapters on the current status of surface modification techniques: electrochemical, plasma-aided, reactive and nonreactive physical vapor deposition, sol-gel coatings, high-energy ion implantation, ion-assisted deposition, organized molecular assemblies, solar energy. Brief chapters in the appendices document basic research in surface science by NSF, Air Force, and DOE. Participants at the workshop were invited to serve on 10 working groups. Separate abstracts were prepared for the data base where appropriate.

Czanderna, A.W.; Landgrebe, A.R. [eds.

1992-09-01T23:59:59.000Z

219

Synthesis of CdSe quantum dots for quantum dot sensitized solar cell  

SciTech Connect (OSTI)

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

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

2014-04-24T23:59:59.000Z

220

Enhanced Joule Heating in Umbral Dots  

E-Print Network [OSTI]

We present a study of magnetic profiles of umbral dots (UDs) and its consequences on the Joule heating mechanisms. Hamedivafa (2003) studied Joule heating using vertical component of magnetic field. In this paper UDs magnetic profile has been investigated including the new azimuthal component of magnetic field which might explain the relatively larger enhancement of Joule heating causing more brightness near circumference of UD.

Chandan Joshi; Lokesh Bharti; S. N. A. Jaaffrey

2007-05-08T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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
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221

Spin dynamics characterization in magnetic dots  

E-Print Network [OSTI]

J= 0.1 meV Frequency (JS) SDF J=0.6 meV Fig. 2. (Colorfrom diagonalization (SDF: J=1 eV) Frequency spectrum fromMagnon DOS for a circular dot SDF: J=0.6 meV N=1600 N=400 N=

Mozaffari, Mohammad Reza; Esfarjani, Keivan

2007-01-01T23:59:59.000Z

222

Theoretical performance of solar cell based on mini-bands quantum dots  

SciTech Connect (OSTI)

The tremendous amount of research in solar energy is directed toward intermediate band solar cell for its advantages compared with the conventional solar cell. The latter has lower efficiency because the photons have lower energy than the bandgap energy and cannot excite mobile carriers from the valence band to the conduction band. On the other hand, if mini intermediate band is introduced between the valence and conduction bands, then the smaller energy photons can be used to promote charge carriers transfer to the conduction band and thereby the total current increases while maintaining a large open circuit voltage. In this article, the influence of the new band on the power conversion efficiency for structure of quantum dots intermediate band solar cell is theoretically investigated and studied. The time-independent Schrödinger equation is used to determine the optimum width and location of the intermediate band. Accordingly, achievement of a maximum efficiency by changing the width of quantum dots and barrier distances is studied. Theoretical determination of the power conversion efficiency under the two different ranges of QD width is presented. From the obtained results, the maximum power conversion efficiency is about 70.42%. It is carried out for simple cubic quantum dot crystal under fully concentrated light. It is strongly dependent on the width of quantum dots and barrier distances.

Aly, Abou El-Maaty M., E-mail: drabouelmaaty@hotmail.com, E-mail: ashraf.nasr@gmail.com [Power Electronics and Energy Conversion Department, ERI, NRCB (Egypt); College of Computer, Qassim University, P.O.B. 6688, Buryadah 51453 (Saudi Arabia); Nasr, A., E-mail: drabouelmaaty@hotmail.com, E-mail: ashraf.nasr@gmail.com [Radiation Engineering Department, NCRRT, Atomic Energy Authority (Egypt); College of Computer, Qassim University, P.O.B. 6688, Buryadah 51453 (Saudi Arabia)

2014-03-21T23:59:59.000Z

223

CEC-500-2010-FS-002 Assess New Transportation  

E-Print Network [OSTI]

CEC-500-2010-FS-002 Assess New Transportation and Land-Use Patterns in a Carbon-Constrained Future TRANSPORTATION ENERGY RESEARCH PIER Transportation Research www.energy.ca.gov/research/ transportation/ March 2010 The Issue California's transportation sector is the single largest contributor of greenhouse gas

224

Research  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories » RemovingResearch CORE-SHELL NANOPARTICLES AND

225

Alternative Transportation Technologies: Hydrogen, Biofuels,...  

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

Alternative Transportation Technologies: Hydrogen, Biofuels, Advanced Efficiency, and Plug-in Hybrid Electric Vehicles Results of two Reports from the National Research Council...

226

Sustainable Transportation Program | ornl.gov  

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

with government, industry, and academia, Oak Ridge National Laboratory's (ORNL) Sustainable Transportation Program research and development efforts are resulting in...

227

Controlling quantum dot energies using submonolayer bandstructure engineering  

SciTech Connect (OSTI)

We demonstrate control of energy states in epitaxially-grown quantum dot structures formed by stacked submonolayer InAs depositions via engineering of the internal bandstructure of the dots. Transmission electron microscopy of the stacked sub-monolayer regions shows compositional inhomogeneity, indicative of the presence of quantum dots. The quantum dot ground state is manipulated not only by the number of deposited InAs layers, but also by control of the thickness and material composition of the spacing layers between submonolayer InAs depositions. In this manner, we demonstrate the ability to shift the quantum dot ground state energy at 77?K from 1.38?eV to 1.88?eV. The results presented offer a potential avenue towards enhanced control of dot energies for a variety of optoelectronic applications.

Yu, L.; Law, S.; Wasserman, D. [Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801 (United States); Jung, D.; Lee, M. L. [Department of Electrical Engineering, Yale University, New Haven, Connecticut 06520 (United States); Shen, J.; Cha, J. J. [Department of Mechanical Engineering and Materials Science and Energy Science Institute, Yale University, New Haven, Connecticut 06520 (United States)

2014-08-25T23:59:59.000Z

228

ISSUES ASSOCIATED WITH SAFE PACKAGING AND TRANSPORT OF NANOPARTICLES  

SciTech Connect (OSTI)

Nanoparticles have long been recognized a hazardous substances by personnel working in the field. They are not, however, listed as a separate, distinct category of dangerous goods at present. As dangerous goods or hazardous substances, they require packaging and transportation practices which parallel the established practices for hazardous materials transport. Pending establishment of a distinct category for such materials by the Department of Transportation, existing consensus or industrial protocols must be followed. Action by DOT to establish appropriate packaging and transport requirements is recommended.

Gupta, N.; Smith, A.

2011-02-14T23:59:59.000Z

229

Elastic fields of quantum dots in subsurface layers A. E. Romanov  

E-Print Network [OSTI]

to vertical stacking of dots provided that the thickness of the intervening layer ``spacer layer'' is in the order or thinner than the lateral dimensions of the dot.4 It is now clear that dot ordering is driven

Beltz, Glenn E.

230

Deposition of colloidal quantum dots by microcontact printing for LED display technology  

E-Print Network [OSTI]

This thesis demonstrates a new deposition method of colloidal quantum dots within a quantum dot organic light-emitting diode (QD-LED). A monolayer of quantum dots is microcontact printed as small as 20 ,Lm lines as well ...

Kim, LeeAnn

2006-01-01T23:59:59.000Z

231

Supertruck - Improving Transportation Efficiency through Integrated...  

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

Research Supertruck - Improving Transportation Efficiency through Integrated Vehicle, Engine and Powertrain Research 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

232

Separability and dynamical symmetry of Quantum Dots  

SciTech Connect (OSTI)

The separability and Runge–Lenz-type dynamical symmetry of the internal dynamics of certain two-electron Quantum Dots, found by Simonovi? et al. (2003), are traced back to that of the perturbed Kepler problem. A large class of axially symmetric perturbing potentials which allow for separation in parabolic coordinates can easily be found. Apart from the 2:1 anisotropic harmonic trapping potential considered in Simonovi? and Nazmitdinov (2013), they include a constant electric field parallel to the magnetic field (Stark effect), the ring-shaped Hartmann potential, etc. The harmonic case is studied in detail. -- Highlights: • The separability of Quantum Dots is derived from that of the perturbed Kepler problem. • Harmonic perturbation with 2:1 anisotropy is separable in parabolic coordinates. • The system has a conserved Runge–Lenz type quantity.

Zhang, P.-M., E-mail: zhpm@impcas.ac.cn [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou (China); Zou, L.-P., E-mail: zoulp@impcas.ac.cn [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou (China); Horvathy, P.A., E-mail: horvathy@lmpt.univ-tours.fr [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou (China); Laboratoire de Mathématiques et de Physique Théorique, Tours University (France); Gibbons, G.W., E-mail: G.W.Gibbons@damtp.cam.ac.uk [Department of Applied Mathematics and Theoretical Physics, Cambridge University, Cambridge (United Kingdom)

2014-02-15T23:59:59.000Z

233

Local Quantum Dot Tuning on Photonic Crystal Chips  

E-Print Network [OSTI]

Quantum networks based on InGaAs quantum dots embedded in photonic crystal devices rely on QDs being in resonance with each other and with the cavities they are embedded in. We developed a new technique based on temperature tuning to spectrally align different quantum dots located on the same chip. The technique allows for up to 1.8nm reversible on-chip quantum dot tuning.

Andrei Faraon; Dirk Englund; Ilya Fushman; Nick Stoltz; Pierre Petroff; Jelena Vuckovic

2007-03-28T23:59:59.000Z

234

How Analysts Cognitively “Connect the Dots  

SciTech Connect (OSTI)

As analysts attempt to make sense of a collection of documents, such as intelligence analysis reports, they may wish to “connect the dots” between pieces of information that may initially seem unrelated. This process of synthesizing information between information requires users to make connections between pairs of documents, creating a conceptual story. We conducted a user study to analyze the process by which users connect pairs of documents and how they spatially arrange information. Users created conceptual stories that connected the dots using organizational strategies that ranged in complexity. We propose taxonomies for cognitive connections and physical structures used when trying to “connect the dots” between two documents. We compared the user-created stories with a data-mining algorithm that constructs chains of documents using co-occurrence metrics. Using the insight gained into the storytelling process, we offer design considerations for the existing data mining algorithm and corresponding tools to combine the power of data mining and the complex cognitive processing of analysts.

Bradel, Lauren; Self, Jessica S.; Endert, Alexander; Hossain, Shahriar M.; North, Chris; Ramakrishnan, Naren

2013-06-04T23:59:59.000Z

235

Transportation Services  

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

Transportation Services Transporting nuclear materials within the United States and throughout the world is a complicated and sometimes highly controversial effort requiring...

236

Local Transportation  

E-Print Network [OSTI]

Local Transportation. Transportation from the Airport to Hotel. There are two types of taxi companies that operate at the airport: special and regular taxis (

237

Greening Transportation  

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

Transportation Goal 2: Greening Transportation LANL supports and encourages employees to reduce their personal greenhouse gas emissions by offering various commuting and work...

238

Solution-Processed Solar Cells using Colloidal Quantum Dots ...  

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

physical understanding, and performance-oriented engineering of colloidal quantum dot solar cells and light sensors. Bio: Ted Sargent received the B.Sc.Eng. (Engineering...

239

Microfluidic self-assembly of quantum dot compound micelles.  

E-Print Network [OSTI]

??This thesis is devoted to the development of microfluidic processes for the controlled self-assembly of quantum dot compound micelles (QDCMs). Microfluidic processes are developed to… (more)

Schabas, Greg

2007-01-01T23:59:59.000Z

240

Quantum Dot Tracers for Use in Engineered Geothermal  

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

tracers, colloidal quantum dots, that offer great promise for use in characterizing fracture networks in EGS reservoirs. Since the wavelength of fluorescence (color) of these...

Note: This page contains sample records for the topic "transportation dot research" 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

Quantum Dot Tracers for Use in Engineered Geothermal Systems...  

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

nanoparticles(quantum dots)that offer great promise for use in characterizing fracture networks in EGS reservoirs. tracersrosequantumdot.pdf More Documents &...

242

assembled quantum dots: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

243

asymmetry quantum dots: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

244

Geological Sequestration Training and Research Program in Capture and Transport: Development of the Most Economical Separation Method for CO2 Capture  

SciTech Connect (OSTI)

The project provided hands-on training and networking opportunities to undergraduate students in the area of carbon dioxide (CO2) capture and transport, through fundamental research study focused on advanced separation methods that can be applied to the capture of CO2 resulting from the combustion of fossil-fuels for power generation . The project team’s approach to achieve its objectives was to leverage existing Carbon Capture and Storage (CCS) course materials and teaching methods to create and implement an annual CCS short course for the Tuskegee University community; conduct a survey of CO2 separation and capture methods; utilize data to verify and develop computer models for CO2 capture and build CCS networks and hands-on training experiences. The objectives accomplished as a result of this project were: (1) A comprehensive survey of CO2 capture methods was conducted and mathematical models were developed to compare the potential economics of the different methods based on the total cost per year per unit of CO2 avoidance; and (2) Training was provided to introduce the latest CO2 capture technologies and deployment issues to the university community.

Vahdat, Nader

2013-09-30T23:59:59.000Z

245

E-Print Network 3.0 - atom quantum dot Sample Search Results  

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

third-generation solar cell efficiencies. Tiny quantum dots... the first all-quantum-dot photovoltaic cell, which was based on lead sulfide and demonstrated reasonable... quantum...

246

Enhanced performance of quantum dot solar cells based on type II quantum dots  

SciTech Connect (OSTI)

The characteristics of quantum dot solar cells (QDSCs) based on type II QDs are investigated theoretically. Based on a drift-diffusion model, we obtained a much higher open circuit voltage (V{sub oc}) as well as conversion efficiency in a type II QDSC, compared to type I QDSCs. The improved V{sub oc} and efficiency are mainly attributed to the much longer Auger recombination lifetime in type II QDs. Moreover, the influence of the carrier lifetime on devices' performance is discussed and clarified. In addition, an explicit criterion to determine the role of quantum dots in solar cells is put forward.

Xu, Feng; Yang, Xiao-Guang; Luo, Shuai; Lv, Zun-Ren; Yang, Tao, E-mail: tyang@semi.ac.cn [Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083 (China)

2014-10-07T23:59:59.000Z

247

E-Print Network 3.0 - ac quantum transport Sample Search Results  

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

ANNUAL RESEARCH REPORT 2009 PHotonics nAnotEcHnoLoGY Summary: AnotEcHnoLoGY Heterojunction Photovoltaics Using Printed colloidal Quantum Dots as the Photosensitive Layer A....

248

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

SciTech Connect (OSTI)

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

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

2014-01-06T23:59:59.000Z

249

Sustainable Transportation Planning: Tools for Creating Vibrant, Healthy and Resilient Communities, by Jeffrey Tumlin  

E-Print Network [OSTI]

Bay Area Case Study. ” Transportation Research Record, 2187,25, 2012 Sustainable Transportation Planning: Tools forsubject of sustainable transportation typically fall into

Piatkowski, Dan

2012-01-01T23:59:59.000Z

250

Los Alamos researchers unravel the mystery of quantum dot blinking  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund Las Conchas

251

Sustainable Transportation Energy Pathways Research  

E-Print Network [OSTI]

Modeling Vehicle Technology Evaluation Energy, Environmental & Economic Cost Analysis Scenarios · Fuel cell electric Climate change, Air quality, Energy security A comprehensive energy strategy should · Electricity · Low-carbon liquid fuels (coal / NG with sequestration) #12;POTENTIAL FOR VEHICLE ENERGY

Handy, Susan L.

252

NREL: Transportation Research Home Page  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz,Aerial photo ofStudySilver Toyota

253

NREL: Transportation Research - Energy Storage  

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 and ResourcesOtherForecastingAlternativeVehicleHydrogen

254

NREL: Transportation Research - Fuels Performance  

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 and Evaluation Photo of medium-duty

255

NREL: Transportation Research - Success Stories  

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 and Evaluation Photo ofHydraulicPublications

256

State DOT: PENNSYLVANIA State Report Questions on NDT Testing  

E-Print Network [OSTI]

capacity surveys, management of load restrictions, fatigue tests and compaction control. On concreteState DOT: PENNSYLVANIA State Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? PennDOT performs Falling Weight

257

State DOT: Missouri State Report Questions on NDT Testing  

E-Print Network [OSTI]

State DOT: Missouri State Report Questions on NDT Testing 1. What NDT testing methods for concrete maturity meter MoDOT has utilized the rebound hammer to evaluate in-place concrete when cylinder testing materials, concrete pavements, and overlays are you trying? a) Maturity Method b) Rebound Hammer c) Cover

258

Women @ Energy: Dot Harris | Department of Energy  

Office of Environmental Management (EM)

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 EnergyEnergyENERGYWomen Owned SmallOf TheViolations | DepartmentDeborah Joanne Bard Women @Dot Harris

259

Temperature Dependence of Single CdSe/ZnS Quantum Dots Luminescence Lifetime  

E-Print Network [OSTI]

, such as quantum dots (QDs), has grown dramatically. These semiconductor QDs bridge the gap between single

Paris-Sud XI, Université de

260

Texas Transportation Poll (TTP) Data Documentation The dataset and code book has been provided, so that researchers interested in conducting their own  

E-Print Network [OSTI]

Texas Transportation Poll (TTP) Data Documentation The dataset and code book) contains basic information about all the variables in the dataset. The second part been cleaned. The expanded weight has also been included in the dataset

Note: This page contains sample records for the topic "transportation dot research" 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

Linewidth broadening of a quantum dot coupled to an off-resonant cavity  

E-Print Network [OSTI]

We study the coupling between a photonic crystal cavity and an off-resonant quantum dot under resonant excitation of the cavity or the quantum dot. Linewidths of the quantum dot and the cavity as a function of the excitation laser power are measured. We show that the linewidth of the quantum dot, measured by observing the cavity emission, is significantly broadened compared to the theoretical estimate. This indicates additional incoherent coupling between the quantum dot and the cavity.

Arka Majumdar; Andrei Faraon; Erik Kim; Dirk Englund; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2010-03-11T23:59:59.000Z

262

--Jennifer Tidball Graphene research at Kansas State University is taking many  

E-Print Network [OSTI]

-- Jennifer Tidball Graphene research at Kansas State University is taking many shapes: dots engineering, is fabricating these shapes from graphene, a form of carbon that is only one atom thick. He by a five-year $400,000 National Science Foundation CAREER award -- focuses on graphene quantum dots, which

Berry, Vikas

263

The Electricity and Transportation Infrastructure Convergence  

E-Print Network [OSTI]

The Electricity and Transportation Infrastructure Convergence Using Electrical Vehicles Final Project Report Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;#12;The Electricity and Transportation Infrastructure Convergence Using Electrical

264

Coherent excitation of a strongly coupled quantum dot - cavity system  

E-Print Network [OSTI]

We have studied the coherent excitation of a strongly coupled QD/photonic crystal cavity system. Time-resolved reflectivity measurements show the vacuum Rabi oscillation of the dot in the cavity. Next, we considered the resonant driving of a cavity-detuned dot, which efficiently populates the cavity mode. This cavity-controlled read-out channel allows high-resolution single quantum dot spectroscopy. Autocorrelation measurements on the cavity mode show antibunching and suggest the use of the resonantly driven QD/cavity system as an on-demand source of single photons with potentially near-unity indistinguishability.

Dirk Englund; Arka Majumdar; Andrei Faraon; Mitsuru Toishi; Nick Stoltz; Pierre Petroff; Jelena Vuckovic

2009-02-19T23:59:59.000Z

265

ADVANCED CUTTINGS TRANSPORT STUDY  

SciTech Connect (OSTI)

This is the second quarterly progress report for Year-4 of the ACTS Project. It includes a review of progress made in: (1) Flow Loop construction and development and (2) research tasks during the period of time between October 1, 2002 and December 30, 2002. This report presents a review of progress on the following specific tasks. (a) Design and development of an Advanced Cuttings Transport Facility Task 3: Addition of a Cuttings Injection/Separation System, Task 4: Addition of a Pipe Rotation System. (b) New research project (Task 9b): ''Development of a Foam Generator/Viscometer for Elevated Pressure and Elevated Temperature (EPET) Conditions''. (d) Research project (Task 10): ''Study of Cuttings Transport with Aerated Mud Under Elevated Pressure and Temperature Conditions''. (e) Research on three instrumentation tasks to measure: Cuttings concentration and distribution in a flowing slurry (Task 11), Foam texture while transporting cuttings. (Task 12), and Viscosity of Foam under EPET (Task 9b). (f) New Research project (Task 13): ''Study of Cuttings Transport with Foam under Elevated Pressure and Temperature Conditions''. (g) Development of a Safety program for the ACTS Flow Loop. Progress on a comprehensive safety review of all flow-loop components and operational procedures. (Task 1S). (h) Activities towards technology transfer and developing contacts with Petroleum and service company members, and increasing the number of JIP members.

Troy Reed; Stefan Miska; Nicholas Takach; Kaveh Ashenayi; Mark Pickell; Len Volk; Mike Volk; Lei Zhou; Zhu Chen; Crystal Redden; Aimee Washington

2003-01-30T23:59:59.000Z

266

CENTER FOR TRANSPORTATION The University of Texas at Austin  

E-Print Network [OSTI]

1 CENTER FOR TRANSPORTATION RESEARCH The University of Texas at Austin February 2010 Freight Perspective on Texas's Transportation System #12;#12;Table of Contents Introduction.................................................................................................................... 4 1. Texas's Transportation System

Texas at Austin, University of

267

Status report on the Small Secure Transportable Autonomous Reactor (SSTAR) /Lead-cooled Fast Reactor (LFR) and supporting research and development.  

SciTech Connect (OSTI)

This report provides an update on development of a pre-conceptual design for the Small Secure Transportable Autonomous Reactor (SSTAR) Lead-Cooled Fast Reactor (LFR) plant concept and supporting research and development activities. SSTAR is a small, 20 MWe (45 MWt), natural circulation, fast reactor plant for international deployment concept incorporating proliferation resistance for deployment in non-fuel cycle states and developing nations, fissile self-sufficiency for efficient utilization of uranium resources, autonomous load following making it suitable for small or immature grid applications, and a high degree of passive safety further supporting deployment in developing nations. In FY 2006, improvements have been made at ANL to the pre-conceptual design of both the reactor system and the energy converter which incorporates a supercritical carbon dioxide Brayton cycle providing higher plant efficiency (44 %) and improved economic competitiveness. The supercritical CO2 Brayton cycle technology is also applicable to Sodium-Cooled Fast Reactors providing the same benefits. One key accomplishment has been the development of a control strategy for automatic control of the supercritical CO2 Brayton cycle in principle enabling autonomous load following over the full power range between nominal and essentially zero power. Under autonomous load following operation, the reactor core power adjusts itself to equal the heat removal from the reactor system to the power converter through the large reactivity feedback of the fast spectrum core without the need for motion of control rods, while the automatic control of the power converter matches the heat removal from the reactor to the grid load. The report includes early calculations for an international benchmarking problem for a LBE-cooled, nitride-fueled fast reactor core organized by the IAEA as part of a Coordinated Research Project on Small Reactors without Onsite Refueling; the calculations use the same neutronics computer codes and methodologies applied to SSTAR. Another section of the report details the SSTAR safety design approach which is based upon defense-in-depth providing multiple levels of protection against the release of radioactive materials and how the inherent safety features of the lead coolant, nitride fuel, fast neutron spectrum core, pool vessel configuration, natural circulation, and containment meet or exceed the requirements for each level of protection. The report also includes recent results of a systematic analysis by LANL of data on corrosion of candidate cladding and structural material alloys of interest to SSTAR by LBE and Pb coolants; the data were taken from a new database on corrosion by liquid metal coolants created at LANL. The analysis methodology that considers penetration of an oxidation front into the alloy and dissolution of the trailing edge of the oxide into the coolant enables the long-term corrosion rate to be extracted from shorter-term corrosion data thereby enabling an evaluation of alloy performance over long core lifetimes (e.g., 30 years) that has heretofore not been possible. A number of candidate alloy specimens with special treatments or coatings which might enhance corrosion resistance at the temperatures at which SSTAR would operate were analyzed following testing in the DELTA loop at LANL including steels that were treated by laser peening at LLNL; laser peening is an approach that alters the oxide-metal bonds which could potentially improve corrosion resistance. LLNL is also carrying out Multi-Scale Modeling of the Fe-Cr system with the goal of assisting in the development of cladding and structural materials having greater resistance to irradiation.

Sienicki, J. J.; Moisseytsev, A.; Yang, W. S.; Wade, D. C.; Nikiforova, A.; Hanania, P.; Ryu, H. J.; Kulesza, K. P.; Kim, S. J.; Halsey, W. G.; Smith, C. F.; Brown, N. W.; Greenspan, E.; de Caro, M.; Li, N.; Hosemann, P.; Zhang, J.; Yu, H.; Nuclear Engineering Division; LLNL; LANL; Massachusetts Inst. of Tech.; Ecole des Mines de Paris; Oregon State Univ.; Univ.of California at Berkley

2008-06-23T23:59:59.000Z

268

Blue Dots Team Transits Working Group Review  

E-Print Network [OSTI]

Transiting planet systems offer an unique opportunity to observationally constrain proposed models of the interiors (radius, composition) and atmospheres (chemistry, dynamics) of extrasolar planets. The spectacular successes of ground-based transit surveys (more than 60 transiting systems known to-date) and the host of multi-wavelength, spectro-photometric follow-up studies, carried out in particular by HST and Spitzer, have paved the way to the next generation of transit search projects, which are currently ongoing (CoRoT, Kepler), or planned. The possibility of detecting and characterizing transiting Earth-sized planets in the habitable zone of their parent stars appears tantalizingly close. In this contribution we briefly review the power of the transit technique for characterization of extrasolar planets, summarize the state of the art of both ground-based and space-borne transit search programs, and illustrate how the science of planetary transits fits within the Blue Dots perspective.

Sozzetti, A; Alonso, R; Blank, D L; Catala, C; Deeg, H; Grenfell, J L; Hellier, C; Latham, D W; Minniti, D; Pont, F; Rauer, H

2009-01-01T23:59:59.000Z

269

Hybrid organic/quantum dot thin film structures and devices  

E-Print Network [OSTI]

Organic light emitting diodes have undergone rapid advancement over the course of the past decade. Similarly, quantum dot synthesis has progressed to the point that room temperature highly efficient photoluminescence can ...

Coe-Sullivan, Seth (Seth Alexander)

2005-01-01T23:59:59.000Z

270

Self-Sustaining Dynamical Nuclear Polarization Oscillations in Quantum Dots  

E-Print Network [OSTI]

Early experiments on spin-blockaded double quantum dots revealed robust, large-amplitude current oscillations in the presence of a static (dc) source-drain bias. Despite experimental evidence implicating dynamical nuclear ...

Rudner, M. S.

271

Optoelectronic and photonic control of single quantum dots  

E-Print Network [OSTI]

Optoelectronic and photonic control of single quantum dots Samuel James Dewhurst Wolfson College University of Cambridge A thesis submitted for the degree of Doctor of Philosophy April 2010 Declaration This thesis describes work carried out...

Dewhurst, Samuel James

2010-10-12T23:59:59.000Z

272

Full counting statistics as a probe of quantum coherence in a side-coupled double quantum dot system  

SciTech Connect (OSTI)

We study theoretically the full counting statistics of electron transport through side-coupled double quantum dot (QD) based on an efficient particle-number-resolved master equation. It is demonstrated that the high-order cumulants of transport current are more sensitive to the quantum coherence than the average current, which can be used to probe the quantum coherence of the considered double QD system. Especially, quantum coherence plays a crucial role in determining whether the super-Poissonian noise occurs in the weak inter-dot hopping coupling regime depending on the corresponding QD-lead coupling, and the corresponding values of super-Poissonian noise can be relatively enhanced when considering the spins of conduction electrons. Moreover, this super-Poissonian noise bias range depends on the singly-occupied eigenstates of the system, which thus suggests a tunable super-Poissonian noise device. The occurrence-mechanism of super-Poissonian noise can be understood in terms of the interplay of quantum coherence and effective competition between fast-and-slow transport channels. -- Highlights: •The FCS can be used to probe the quantum coherence of side-coupled double QD system. •Probing quantum coherence using FCS may permit experimental tests in the near future. •The current noise characteristics depend on the quantum coherence of this QD system. •The super-Poissonian noise can be enhanced when considering conduction electron spin. •The side-coupled double QD system suggests a tunable super-Poissonian noise device.

Xue, Hai-Bin, E-mail: xuehaibin@tyut.edu.cn

2013-12-15T23:59:59.000Z

273

Fluorescence from a quantum dot and metallic nanosphere hybrid system  

SciTech Connect (OSTI)

We present energy absorption and interference in a quantum dot-metallic nanosphere system embedded on a dielectric substrate. A control field is applied to induce dipole moments in the nanosphere and the quantum dot, and a probe field is applied to monitor absorption. Dipole moments in the quantum dot or the metal nanosphere are induced, both by the external fields and by each other's dipole fields. Thus, in addition to direct polarization, the metal nanosphere and the quantum dot will sense one another via the dipole-dipole interaction. The density matrix method was used to show that the absorption spectrum can be split from one peak to two peaks by the control field, and this can also be done by placing the metal sphere close to the quantum dot. When the two are extremely close together, a self-interaction in the quantum dot produces an asymmetry in the absorption peaks. In addition, the fluorescence efficiency can be quenched by the addition of a metal nanosphere. This hybrid system could be used to create ultra-fast switching and sensing nanodevices.

Schindel, Daniel G. [Department of Mathematics and Statistics, University of Winnipeg, 515 Portage Avenue, Winnipeg, MB, R3B 2E9 (Canada); Singh, Mahi R. [Department of Physics and Astronomy, University of Western Ontario, 1151 Richmond Street, London, ON, N6A 3K7 (Canada)

2014-03-31T23:59:59.000Z

274

Transportation Security  

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

Preliminary Draft - For Review Only 1 Transportation Security Draft Annotated Bibliography Review July 2007 Preliminary Draft - For Review Only 2 Work Plan Task * TEC STG Work...

275

Computational Transportation  

E-Print Network [OSTI]

), in-vehicle computers, and computers in the transportation infrastructure are integrated ride- sharing, real-time multi-modal routing and navigation, to autonomous/assisted driving

Illinois at Chicago, University of

276

2.4 Contaminant Transport Assessment and Management (CONTAM) The CONTAM research area focuses on developing technology to observe and manage mass and energy  

E-Print Network [OSTI]

of temporal and synoptic scales. In 2009-10, the contaminant transport group continued its emphasis at the Lower Merced River test site (see CoONTAM 02 report section). The layout of the full-scale river about each transect with a small range (-1.82 to 4.80 cm/day) (see CONTAM 01 report section). Higher

California at Los Angeles, University of

277

Hydrogen transport in nickel ,,111... Department of Physical Chemistry and the Fritz Haber Research Center, The Hebrew University, Jerusalem 91904, Israel  

E-Print Network [OSTI]

Hydrogen transport in nickel ,,111... Roi Baer Department of Physical Chemistry and the Fritz Haber Received 13 November 1996; revised manuscript received 21 January 1997 The intricate dynamics of hydrogen of subsurface with surface hydrogen on the nickel host. The analysis is based on the embedded diatomics

Zeiri, Yehuda

278

Graduate Education in Transportation Nohad A. Toulan School o Urban Studies and Planningf  

E-Print Network [OSTI]

Graduate Education in Transportation Nohad A. Toulan School o Urban Studies and Planningf College and Computer Science About Transportation at PSU Transportation education and research at Portland State University is multidisciplinary and focuses on transportation systems, infrastructure, policy, and planning

Bertini, Robert L.

279

Regional Public Coordination Transportation Plan Texoma Region #22  

E-Print Network [OSTI]

in conjunction with TxDOT to increase public awareness of the project. As an integral part of this project, each of the 24 regions studying public transportation in their area was charged with assessing Barriers, Constraints and Best Practices in public... Sherman TAPS TAPS TAPS operates in seven (7) counties, with three (3) of the counties in the Texoma Region. TAPS services include demand response, commuter bus services and special services. Square Miles Population ?00 Rider Trips ?05 Clay 1...

Texoma Council of Governments

2006-12-01T23:59:59.000Z

280

CEC-500-2010-FS-XXX California Transportation  

E-Print Network [OSTI]

Transportation Research www.energy.ca.gov/research/ transportation/ February 2012 The Issue The 2006 Bioenergy and industrial markets. · Determine costs. · Determine energy balance of production. · Identify barriers

Note: This page contains sample records for the topic "transportation dot research" 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

Sandia National Laboratories: Transportation Energy Systems Analysis  

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

Engines for Tomorrow's Transportation Needs (November 17-18, 2009) 90-Billion Gallon Biofuel Deployment Study (Executive Summary) Tagged with: Combustion Research Facility *...

282

Transportation technology R&D—Steve Ciatti  

SciTech Connect (OSTI)

Argonne researcher Steve Ciatti talks about the emerging technologies in transportation, as well as the current technology being developed at the lab and placed on the market.

Steve Ciatti

2012-08-08T23:59:59.000Z

283

Transportation technology R&D?Steve Ciatti  

ScienceCinema (OSTI)

Argonne researcher Steve Ciatti talks about the emerging technologies in transportation, as well as the current technology being developed at the lab and placed on the market.

Steve Ciatti

2013-06-05T23:59:59.000Z

284

Innovative Contracting Strategies forInnovative Contracting Strategies for Transportation MaintenanceTransportation Maintenancepp  

E-Print Network [OSTI]

Innovative Contracting Strategies forInnovative Contracting Strategies for TransportationResearch Methodology Research Findings and DeliverablesResearch Findings and Deliverables Maintenance Contracting Strategy Selection Framework Maintenance Contracting Strategy Selection Guide Case St dies on Inno ati e

Texas at Austin, University of

285

Transportation and packaging resource guide  

SciTech Connect (OSTI)

The purpose of this resource guide is to provide a convenient reference document of information that may be useful to the U.S. Department of Energy (DOE) and DOE contractor personnel involved in packaging and transportation activities. An attempt has been made to present the terminology of DOE community usage as it currently exists. DOE`s mission is changing with emphasis on environmental cleanup. The terminology or nomenclature that has resulted from this expanded mission is included for the packaging and transportation user for reference purposes. Older terms still in use during the transition have been maintained. The Packaging and Transportation Resource Guide consists of four sections: Sect. 1, Introduction; Sect. 2, Abbreviations and Acronyms; Sect. 3, Definitions; and Sect. 4, References for packaging and transportation of hazardous materials and related activities, and Appendices A and B. Information has been collected from DOE Orders and DOE documents; U.S Department of Transportation (DOT), U.S. Environmental Protection Agency (EPA), and U.S. Nuclear Regulatory Commission (NRC) regulations; and International Atomic Energy Agency (IAEA) standards and other international documents. The definitions included in this guide may not always be a regulatory definition but are the more common DOE usage. In addition, the definitions vary among regulatory agencies. It is, therefore, suggested that if a definition is to be used in a regulatory or a legal compliance issue, the definition should be verified with the appropriate regulation. To assist in locating definitions in the regulations, a listing of all definition sections in the regulations are included in Appendix B. In many instances, the appropriate regulatory reference is indicated in the right-hand margin.

Arendt, J.W.; Gove, R.M.; Welch, M.J.

1994-12-01T23:59:59.000Z

286

Transportation Market Distortions  

E-Print Network [OSTI]

of Highways, Volpe National Transportation Systems Center (Evaluating Criticism of Transportation Costing, VictoriaFrom Here: Evaluating Transportation Diversity, Victoria

Litman, Todd

2006-01-01T23:59:59.000Z

287

THE FABRICATION AND ANALYSIS OF QUANTUM-DOT THIN FILM LIGHT EMITTING DIODES FOR USE IN DISPLAYS TECHNOLOGIES.  

E-Print Network [OSTI]

??The quantum dot has many applications, one of which is the light emitting diode. Quantum dot light emitting diodes were fabricated for their use in… (more)

Pickering, Shawn

2011-01-01T23:59:59.000Z

288

Smart vehicular transportation systems  

SciTech Connect (OSTI)

This work builds upon established Sandia intelligent systems technology to develop a unique approach for the integration of intelligent system control into the US Highway and urban transportation systems. The Sandia developed concept of the COPILOT controller integrates a human driver with computer control to increase human performance while reducing reliance on detailed driver attention. This research extends Sandia expertise in sensor based, real-time control of robotics systems to high speed transportation systems. Knowledge in the form of maps and performance characteristics of vehicles provides the automatic decision making intelligence needed to plan optimum routes, maintain safe driving speeds and distances, avoid collisions, and conserve fuel.

Little, C.Q.; Wilson, C.W.

1997-05-01T23:59:59.000Z

289

Fluorescent of C-dot composite thin films and its properties  

SciTech Connect (OSTI)

In the present work, we report the preparation of a fluorescent carbon nanodots (C-dots) epoxy composite thin films on a glass substrate. C-dots were prepared directly by a simple hydrothermal method using citric acid as a carbon source. The C-dots solutions were mixed with a transparent epoxy resin to form C-dot epoxy composite. Furthermore, the composite precursor was deposited on the glass substrate using a spin coating method in order to fabricate C-dot epoxy composite thin film. The transmittance intensity of C-dot composite film reached up to 90% in the visible light spectra. Using Swanopoel method, the film thickness of fabricated C-dot composite film was determined at about 1.45 ?m, a value lies in a typical range needed for a wide range application. Thus, the C-dot composite film is promising in broadening applications in various fields such as energy conversion, optoelectronics, and display technology.

Mahen, Ea Cahya Septia, E-mail: ferry@fi.itb.ac.id; Nuryadin, Bebeh W., E-mail: ferry@fi.itb.ac.id; Iskandar, Ferry, E-mail: ferry@fi.itb.ac.id; Abdullah, Mikrajuddin, E-mail: ferry@fi.itb.ac.id; Khairurrijal, E-mail: ferry@fi.itb.ac.id [Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung, 40132 (Indonesia)

2014-02-24T23:59:59.000Z

290

Manipulating surface diffusion and elastic interactions to obtain quantum dot multilayer arrangements over different length scales  

SciTech Connect (OSTI)

An innovative multilayer growth of InAs quantum dots on GaAs(100) is demonstrated to lead to self-aggregation of correlated quantum dot chains over mesoscopic distances. The fundamental idea is that at critical growth conditions is possible to drive the dot nucleation only at precise locations corresponding to the local minima of the Indium chemical potential. Differently from the known dot multilayers, where nucleation of new dots on top of the buried ones is driven by the surface strain originating from the dots below, here the spatial correlations and nucleation of additional dots are mostly dictated by a self-engineering of the surface occurring during the growth, close to the critical conditions for dot formation under the fixed oblique direction of the incoming As flux, that drives the In surface diffusion.

Placidi, E., E-mail: ernesto.placidi@ism.cnr.it; Arciprete, F. [Istituto di Struttura della Materia, CNR, Via del Fosso del Cavaliere 100, 00133 Rome (Italy); Università di Roma “Tor Vergata”, Dipartimento di Fisica, via della Ricerca Scientifica 1, 00133 Rome (Italy); Latini, V.; Latini, S.; Patella, F. [Università di Roma “Tor Vergata”, Dipartimento di Fisica, via della Ricerca Scientifica 1, 00133 Rome (Italy); Magri, R. [Dipartimento di Scienze Fisiche, Informatiche e Matematiche (FIM), Università di Modena e Reggio Emilia, and Centro S3 CNR-Istituto Nanoscienze, Via Campi 213/A, 4100 Modena (Italy); Scuderi, M.; Nicotra, G. [CNR-IMM, Strada VIII, 5, 95121 Catania (Italy)

2014-09-15T23:59:59.000Z

291

Fabrication and optimization of light emitting devices with core-shell quantum dots  

E-Print Network [OSTI]

Quantum dot light emitting devices (QD-LEDs) are promising options for the next generation of solid state lighting, color displays, and other optoelectronic applications. Overcoating quantum dots (QDs) -- semiconducting ...

Song, Katherine Wei

2013-01-01T23:59:59.000Z

292

Midwave infrared quantum dot avalanche photodiode David A. Ramirez,a  

E-Print Network [OSTI]

Midwave infrared quantum dot avalanche photodiode David A. Ramirez,a Jiayi Shao, Majeed M. Hayat demonstration of a GaAs based avalanche photodiode APD operating in the midwave infrared region 3­5 m . In the device, called the quantum dot avalanche photodiode, an intersubband quantum dots-in-a-well detector

Hayat, Majeed M.

293

SU(4) Kondo Effect in Carbon Nanotube Quantum Dots: Kondo Effect without Charge Quantization  

E-Print Network [OSTI]

.J. Liang, M. Bockrath, and H. Park, PRL (2002) M. R. Buitelaar et al., PRL (2002) Quantization along length nanotube M.S. Choi, R. Lopez and R. Aguado, PRL (2005) 4 degenerate levels in the dot are coupled one for 1 electron: Double dots, dots with symmetries: D. Boese et al., PRB (2002) L. Borda et al., PRL

Finkelstein, Gleb

294

Self-organized formation of quantum dots of a material on a substrate  

DOE Patents [OSTI]

Systems and methods are described for fabricating arrays of quantum dots. A method for making a quantum dot device, includes: forming clusters of atoms on a substrate; and charging the clusters of atoms such that the clusters of atoms repel one another. The systems and methods provide advantages because the quantum dots can be ordered with regard to spacing and/or size.

Zhang, Zhenyu (232 Long Bow Rd., Knoxville, TN 37922); Wendelken, John F. (925 Suwanee Rd., Knoxville, TN 37923); Chang, Ming-Che (F4-2, No. 178 Sec 5 Minsheng East Rd., Taipei, TW); Pai, Woei Wu (1F, No. 17, Alley 11, Lane 202, Ming Chyuan Rd., Pan Chou City, Taipei County, TW)

2001-01-01T23:59:59.000Z

295

Tunable few-electron double quantum dots and Klein tunnelling in ultraclean carbon nanotubes  

E-Print Network [OSTI]

Tunable few-electron double quantum dots and Klein tunnelling in ultraclean carbon nanotubes G. A. Steele*, G. Gotz and L. P. Kouwenhoven Quantum dots defined in carbon nanotubes are a platform for both with highly tunable barriers1 , but disorder has prevented tunable nanotube- based quantum-dot devices from

296

FISH and Chips: Automation of Fluorescent Dot Counting in Interphase Cell Nuclei  

E-Print Network [OSTI]

) in each cell nucleus. This system works with two fluorescent dyes, one for the DNA hybridization dotsFISH and Chips: Automation of Fluorescent Dot Counting in Interphase Cell Nuclei Hans Netten,1 Ian abnormalities in inter- phase cell nuclei. This process is called dot counting. To estimate the distribution

van Vliet, Lucas J.

297

Temperature-Tuning of Near-Infrared Monodisperse Quantum Dot Solids at  

E-Print Network [OSTI]

include solar energy conversion as well as quantum communication. In quantum dot systems, the dot sizes photovoltaics, capturing the infrared spectrum, and also exhibiting possible multi- exciton generation.4. Incoherent Fo¨rster resonance energy transfer (FRET) 8­11 can occur between different-sized quantum dots

Hone, James

298

International Experience in Transportation Analysis and Planning  

E-Print Network [OSTI]

managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract number DE-AC05-00OR22725 Research Areas Freight Flows Passenger Flows Supply Chain Efficiency Transportation: Energy Environment Agency for International Development A team of researchers toured ports and land transport facilities

299

DOT-7A Type A packaging test and evaluation procedure  

SciTech Connect (OSTI)

The purpose of this document is to provide guidance for qualifying a DOT-7A Type A packaging for use. WHC qualifies DOT-7A packaging for two purposes. The first is to provide packages for use by WHC (manufacturer-qualified). The second is to provide a contracted service in support of DOE/EM-76 (DOE-qualified). This document includes descriptions of the performance tests, the personnel involved and their qualifications, appropriate safety and quality assurance considerations, and the procedures to be followed when WHC performs the tests (either as the manufacturer, or on behalf of the DOE`s certification program).

Kelly, D.L., Westinghouse Hanford

1996-06-13T23:59:59.000Z

300

University of Minnesota CTS Research Conference  

E-Print Network [OSTI]

Program l Minnesota Central Safety Funds l Foster safety culture among county stakeholders #12;4/20/2011 51 University of Minnesota CTS Research Conference May 25, 2011 Mn/DOT County Roadway Safety Plans and Opportunities l Data Needs l Safety Emphasis Areas l Safety Strategies l Safety Workshop l Safety Projects l

Minnesota, University of

Note: This page contains sample records for the topic "transportation dot research" 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

Revolutionary Method for Increasing the Efficiency of White Light Quantum Dot LEDs  

SciTech Connect (OSTI)

Covering a light-emitting diode (LED) with quantum dots (QDs) can produce a broad spectrum of white light. However, current techniques for applying QDs to LEDs suffer from a high density of defects and a non-uniform distribution of QDs, which respec-tively diminish the efficiency and quality of emitted light. Oak Ridge National Laboratory (ORNL) has the unique capability to thermally anneal QD structures at extremely high power densities for very short durations. This process, called pulse thermal proc-essing (PTP), reduces the number of point defects while main-taining the size and shape of the original QD nanostructure. Therefore, the efficiency of the QD wavelength conversion layer is improved without altering the emission spectrum defined by the size distribution of the quantum dot nanoparticles. The cur-rent research uses a thermal model to predict annealing tempera-tures during PTP and demonstrates up to a 300% increase in pho-toluminescence for QDs on passive substrates

Duty, Chad E [ORNL; Bennett, Charlee J C [ORNL; Sabau, Adrian S [ORNL; Jellison Jr, Gerald Earle [ORNL; Boudreaux, Philip R [ORNL; Walker, Steven C [ORNL; Ott, Ronald D [ORNL

2011-01-01T23:59:59.000Z

302

Wide-ranging research programs address issues of local, state and national concern, from immigration reform and Medicaid expansion to national parks management, regional transportation issues,  

E-Print Network [OSTI]

conferences around the globe · Research collaborations with many public and private sector partners result and understanding the issues, challenges and outcomes associated with any course of action. Boise State faculty and Administration · Criminal Justice · Political Science · Community and Environmental Health · History · Nursing

Barrash, Warren

303

WATER RESOURCES RESEARCH, VOL. 29, NO. 11, PAGES 3727-3740, NOVEMBER 1993 Modeling of Multiphase Transport of Multicomponent Organic Contaminants  

E-Print Network [OSTI]

WATER RESOURCES RESEARCH, VOL. 29, NO. 11, PAGES 3727-3740, NOVEMBER 1993 Modeling of Multiphase. Although these organic liquids are designatedas "nonaque- ous," i.e., immiscible with water, their solubilities in water are, in fact, sufficientto render large quantities of ground- water unfit for human use

Patzek, Tadeusz W.

304

Articles published in the University of Alabama Research Magazine with vehicle or transportation relevance (press "ctrl+click" on link to access articles)  

E-Print Network [OSTI]

to make hydrogen-powered cars and trucks a reality. Truck with Prototype Fuel Cell Visits UA - May 26 on hydrogen fuel cells. Research at The University of Alabama is helping move this scenario toward reality, 2003 - A heavy-duty highway tractor truck equipped with a first-of-its-kind fuel-cell auxiliary power

Carver, Jeffrey C.

305

Intermediate-band photosensitive device with quantum dots having tunneling barrier embedded in organic matrix  

DOE Patents [OSTI]

A plurality of quantum dots each have a shell. The quantum dots are embedded in an organic matrix. At least the quantum dots and the organic matrix are photoconductive semiconductors. The shell of each quantum dot is arranged as a tunneling barrier to require a charge carrier (an electron or a hole) at a base of the tunneling barrier in the organic matrix to perform quantum mechanical tunneling to reach the respective quantum dot. A first quantum state in each quantum dot is between a lowest unoccupied molecular orbital (LUMO) and a highest occupied molecular orbital (HOMO) of the organic matrix. Wave functions of the first quantum state of the plurality of quantum dots may overlap to form an intermediate band.

Forrest, Stephen R. (Ann Arbor, MI)

2008-08-19T23:59:59.000Z

306

Panel 4 - applications to transportation  

SciTech Connect (OSTI)

The aim of this group was to compile a listing of current and anticipated future problem areas in the transportation industry where the properties of diamond and DLC films make them especially attractive and where the panel could strongly endorse the establishment of DOE/Transportation Industry cooperative research efforts. This section identifies the problem areas for possible applications of diamond/DLC technology and presents indications of current approaches to these problems.

Nichols, F. [Argonne National Lab., IL (United States); Au, J. [Sundstrand Aerospace, Rockford, IL (United States); Bhattacharya, R. [Universal Energy Systems, Inc., Dayton, OH (United States); Bhushan, B. [Ohio State Univ., Columbus (United States); Blunier, D. [Caterpillar, Inc., Peoria, IL (United States); Boardman, B. [Deere & Co., Moline, IL (United States); Brombolich, L. [Compu-Tec Engineering, Chesterfield, MO (United States); Davidson, J. [Vanderbilt Univ., Nashville, TN (United States); Graham, M. [Northwestern Univ., Evanston, IL (United States); Hakim, N. [Detroit Diesel Corp., MI (United States); Harris, K. [Dubbeldee Harris Diamond Corp., Mt. Arlington, NJ (United States); Hay, R. [Norton Diamond Film, Northboro, MA (United States); Herk, L. [Southwest Research Inst., Southfield, MI (United States); Hojnacki, H.; Rourk, D. [Intelligent Structures Incorporated, Canton, MI (United States); Kamo, R. [Adiabatics, Inc., Columbus, IN (United States); Nieman, B. [Allied-Signal Inc., Des Plaines, IL (United States); O`Neill, D. [3M, St. Paul, MN (United States); Peterson, M.B. [Wear Sciences, Arnold, MD (United States); Pfaffenberger, G. [Allison Gas Turbine, Indianapolis, IN (United States); Pryor, R.W. [Wayne State Univ., Detroit, MI (United States); Russell, J. [Superconductivity Publications, Inc., Somerset, NJ (United States); Syniuta, W. [Advanced Mechanical Technology, Inc., Newton, MA (United States); Tamor, M. [Ford Motor Co., Dearborn, MI (United States); Vojnovich, T. [Dept. of Energy, Washington, DC (United States); Yarbrough, W. [Pennsylvania State Univ., University Park (United States); Yust, C.S. [Oak Ridge National Lab., TN (United States)

1993-01-01T23:59:59.000Z

307

Ultrasmall silicon quantum dots F. A. Zwanenburg,1,a  

E-Print Network [OSTI]

by a model based on the Poisson equation. The smallest dots 12 nm allow identification of the last charge-down planar silicon devices,1­3 produced by etching bulk materials down to nanometer dimensions, often show understanding of the specific system. This has allowed us to realize the first experimental identification

308

Phonons in quantum dots and their role in exciton dephasing  

E-Print Network [OSTI]

-nitrides. Values are taken from [5]. The values for the nitride compounds are taken from density functional dots (QDs). The state of the art is reported in detail in the present book. A large application- driven the theory of acoustic phonons in QDs is explained in Sec. 3. Special emphasis is given to continuum

Zimmermann, Roland

309

TRICOLOR LIGHT EMITTING DIODE DOT MATRIX DISPLAY SYSTEM WITHAUDIO OUTPUT  

E-Print Network [OSTI]

1 TRICOLOR LIGHT EMITTING DIODE DOT MATRIX DISPLAY SYSTEM WITHAUDIO OUTPUT Grantham Pang, Chi emitting diodes; tricolor display; audio communication. I. Introduction This paper relates to a tricolor broadcasting through the visible light rays transmitted by the display panel or assembly. Keywords: light

Pang, Grantham

310

Circuit QED in a double quantum dot system  

SciTech Connect (OSTI)

Strong coupling peculiar feature is demonstrated in a coupled qubit-resonator system consisting of a GaAs double quantum dot and a coplanar waveguide resonator. Qubit-resonator coupling strength (g and the decoherence rate ? are directly derived from the experiment, assuring a strong coupling condition (g/? ? 2)

Toida, Hiraku; Nakajima, Takashi; Komiyama, Susumu [Department of Basic Science, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902 (Japan)

2013-12-04T23:59:59.000Z

311

Electronic structure of quantum dots Stephanie M. Reimann  

E-Print Network [OSTI]

Electronic structure of quantum dots Stephanie M. Reimann Mathematical Physics, Lund Institute are reviewed. Experimental techniques for measuring the electronic shell structure and the effect of magnetic fields are briefly described. The electronic structure is analyzed in terms of simple single

Wu, Zhigang

312

State DOT: Colorado State Report Questions on MEPDG Implementation  

E-Print Network [OSTI]

State DOT: Colorado State Report Questions on MEPDG Implementation 1. Summarize your state's status as far as MEPDG Implementation. Currently, CDOT is in the process of validating the MEPDG in Colorado and calibrating it to Colorado performance data. 2. What efforts have been made toward local calibration? CDOT has

313

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT  

E-Print Network [OSTI]

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT PORTLAND CEMENT CONCRETE PAVEMENT PROJECT · First in Alabama in more than 25 years! · IM-I059 (342) Etowah County ­ I-59 Concrete Pavement Rehabilitation with Unbonded Concrete Overlay ­ Length: 10.9 miles ­ Thickness: 11.0 to 13.5 inches ­ Volume: 300

314

Alabama DOT: Alabama Report Questions on NDT Testing  

E-Print Network [OSTI]

Alabama DOT: Alabama Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? · We perform pavement smoothness testing, pavement friction testing and FWD testing · We are currently using GPR on the I-59 project to locate voids

315

State DOT: California State Report Questions on NDT Testing  

E-Print Network [OSTI]

test for this purpose. For concrete pavement, California has used falling weight deflectometer (FWD locations within concrete pavement. 2. In your experience, how does the reliability of NDT testing methodsState DOT: California State Report Questions on NDT Testing 1. What NDT testing methods

316

State DOT: Louisiana State Report Questions on NDT Testing  

E-Print Network [OSTI]

State DOT: Louisiana State Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? LADOTD does not test concrete pavements or overlays non-destructively. We do use the surface resistivity meter for non-destructive testing

317

Quantum dot-based nanomaterials for biological imaging  

E-Print Network [OSTI]

Quantum dot-based fluorescent probes were synthesized and applied to biological imaging in two distinct size regimes: (1) 100-1000 nm and (2) < 10 nm in diameter. The larger diameter range was accessed by doping CdSe/ZnS ...

Zimmer, John P. (John Philip)

2006-01-01T23:59:59.000Z

318

Mn/DOT's Ombudsman Program Collaboration and Process  

E-Print Network [OSTI]

Mn/DOT's Ombudsman Program Collaboration and Process #12;Overview Ombudsman exists to rebuild trust on the environmental and municipal consent processes can be critical #12;A Large Organization #12;Tragedy;Ombudsman Does Not... ·! Advocate for one party or point of view ·! Own any formal process or policy

Minnesota, University of

319

Atmospheric and Surface Science Research Laboratory  

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

Atmospheric and Surface Science Research Laboratory Idaho National Laboratory (INL) researchers are contributing to the scientific understanding of contaminant transport through...

320

Neurotransmitter Transporters  

E-Print Network [OSTI]

at specialized synaptic junctions where electrical excitability in the form of an action potential is translated membrane of neurons and glial cells. Transporters harness electrochemical gradients to force the movement.els.net #12;The response produced when a transmitter interacts with its receptors, the synaptic potential

Bergles, Dwight

Note: This page contains sample records for the topic "transportation dot research" 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

Polymer matrix composites research: A survey of federally sponsored programs  

SciTech Connect (OSTI)

This report identifies research conducted by agencies of the federal government other than the Department of Energy (DOE) in the area of advanced polymer matrix composites (PMCs). DOE commissioned the report to avoid duplicating other agencies' efforts in planning its own research program for PMCs. PMC materials consist of high-strength, short or continuous fibers fused together by an organic matrix. Compared to traditional structural metals, PMCs provide greater strength and stiffness, reduced weight and increased heat resistance. The key contributors to PMC research identified by the survey are the Department of Defense (DOD), the National Aeronautics and Space Administration (NASA), the National Science Foundation (NSF), and the Department of Transportation (DOT). The survey identified a total of 778 projects. More than half of the total projects identified emphasize materials research with a goal toward developing materials with improved performance. Although an almost equal number of identified materials projects focus on thermosets and thermoplastics receive more attention because of their increased impact resistance and their easy formability and re-formability. Slightly more than one third of projects identified target structures research. Only 15 percent of the projects identified focus on manufacturing techniques, despite the need for efficient, economical methods manufacturing products constructed of PMCs--techniques required for PMCs to gain widespread acceptance. Three issues to be addressed concerning PMCs research are economy of use, improvements in processing, and education and training. Five target technologies have been identified that could benefit greatly from increased use of PMCs: aircraft fuselages, automobile frames, high-speed machinery, electronic packaging, and construction.

Not Available

1990-06-01T23:59:59.000Z

322

T839 fiber tracking transporter at New Muon Lab  

SciTech Connect (OSTI)

A darkbox and its transporter have been designed for T839 fiber tracking tests. The darkbox is 3.35 m {times} 0.76 m {times} 0.25 m (1{center_dot}w{center_dot}h) and contains a scintillating fiber ribbon suspension system and mechanical hardware to support the readout electronics. The transporter provides 3.0 m of horizontal motion transverse to the beam for linear scans of fiber characteristics. In addition, 70 degrees of rotation about a vertical axis is provided to simulate tracking of particles emanating from a collision point at lab angles in the range 0{degrees}--70{degrees}. The transporter, which is located inside a radiation area, is remotely controlled to permit scanning the fiber array through the region defined by four small stationary triggering scintillators without disabling beam. The transporter rails extend 20 feet to the west beyond a gate in the radiation enclosure fencing. This provides a staging area to work on the apparatus, while the beam is on. 4 figs.

Krider, J.

1991-10-23T23:59:59.000Z

323

T839 fiber tracking transporter at New Muon Lab  

SciTech Connect (OSTI)

A darkbox and its transporter have been designed for T839 fiber tracking tests. The darkbox is 3.35 m {times} 0.76 m {times} 0.25 m (1{center dot}w{center dot}h) and contains a scintillating fiber ribbon suspension system and mechanical hardware to support the readout electronics. The transporter provides 3.0 m of horizontal motion transverse to the beam for linear scans of fiber characteristics. In addition, 70 degrees of rotation about a vertical axis is provided to simulate tracking of particles emanating from a collision point at lab angles in the range 0{degrees}--70{degrees}. The transporter, which is located inside a radiation area, is remotely controlled to permit scanning the fiber array through the region defined by four small stationary triggering scintillators without disabling beam. The transporter rails extend 20 feet to the west beyond a gate in the radiation enclosure fencing. This provides a staging area to work on the apparatus, while the beam is on. 4 figs.

Krider, J.

1991-10-23T23:59:59.000Z

324

Task 3: PNNL Visit by JAEA Researchers to Participate in TODAM Code Applications to Fukushima Rivers and to Evaluate the Feasibility of Adaptation of FLESCOT Code to Simulate Radionuclide Transport in the Pacific Ocean Coastal Water Around Fukushima  

SciTech Connect (OSTI)

Four JAEA researchers visited PNNL for two weeks in February, 2013 to learn the PNNL-developed, unsteady, one-dimensional, river model, TODAM and the PNNL-developed, time-dependent, three dimensional, coastal water model, FLESCOT. These codes predict sediment and contaminant concentrations by accounting sediment-radionuclide interactions, e.g., adsorption/desorption and transport-deposition-resuspension of sediment-sorbed radionuclides. The objective of the river and coastal water modeling is to simulate • 134Cs and 137Cs migration in Fukushima rivers and the coastal water, and • their accumulation in the river and ocean bed along the Fukushima coast. Forecasting the future cesium behavior in the river and coastal water under various scenarios would enable JAEA to assess the effectiveness of various on-land remediation activities and if required, possible river and coastal water clean-up operations to reduce the contamination of the river and coastal water, agricultural products, fish and other aquatic biota. PNNL presented the following during the JAEA visit to PNNL: • TODAM and FLESCOT’s theories and mathematical formulations • TODAM and FLESCOT model structures • Past TODAM and FLESCOT applications • Demonstrating these two codes' capabilities by applying them to simple hypothetical river and coastal water cases. • Initial application of TODAM to the Ukedo River in Fukushima and JAEA researchers' participation in its modeling. PNNL also presented the relevant topics relevant to Fukushima environmental assessment and remediation, including • PNNL molecular modeling and EMSL computer facilities • Cesium adsorption/desorption characteristics • Experiences of connecting molecular science research results to macro model applications to the environment • EMSL tour • Hanford Site road tour. PNNL and JAEA also developed future course of actions for joint research projects on the Fukushima environmental and remediation assessments.

Onishi, Yasuo

2013-03-29T23:59:59.000Z

325

NREL: Biomass Research - Josh Schaidle  

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

of pyrolysis products to produce fungible transportation fuels. Research Interests Biomass conversion to fuels and chemicals Environmentally-sustainable engineering practices...

326

A Publication of the Texas Transportation Institute Member of The Texas A&M University System Vol. 39 No. 1 2003 Transportation is critical  

E-Print Network [OSTI]

A Publication of the Texas Transportation Institute · Member of The Texas A&M University System · Vol. 39 · No. 1 · 2003 #12;Transportation is critical to quality of life... and often, its preservation. TEXAS TRANSPORTATION RESEARCHER2 niversity transportation research has made significant

327

Advanced method for increasing the efficiency of white light quantum dot LEDs  

SciTech Connect (OSTI)

Covering a light-emitting diode (LED) with quantum dots (QDs) can produce a broad spectrum of white light. However, current techniques for applying QDs to LEDs suffer from a high density of defects and a non-uniform distribution of QDs, which, respectively, diminish the efficiency and quality of emitted light. Oak Ridge National Laboratory (ORNL) has the unique capability to thermally anneal QD structures at extremely high power densities for very short durations. This process, called pulse thermal processing (PTP), reduces the number of point defects while maintaining the size and shape of the original QD nanostructure. Therefore, the efficiency of the QD wavelength conversion layer is improved without altering the emission spectrum defined by the size distribution of theQD nanoparticles. The current research uses a thermal model to predict annealing temperatures during PTP and demonstrates up to a 300% increase in photoluminescence for QDs on passive substrates.

Duty, Chad E [ORNL; Bennett, Charlee J C [ORNL; Sabau, Adrian S [ORNL; Jellison Jr, Gerald Earle [ORNL; Boudreaux, Philip R [ORNL; Walker, Steven C [ORNL; Ott, Ronald D [ORNL

2011-01-01T23:59:59.000Z

328

FINAL REPORT: Adopting Biophysics Methods in Pursuit of Biogeophysical Research: Advancing the Measurement and Modeling of Electrical Signatures of Microbe-Mineral Transformations Impacting Contaminant Transport  

SciTech Connect (OSTI)

This exploratory project involved laboratory experiments to investigate three hypotheses: (H1) Physics-based modeling of low-frequency dispersions (henceforth referred to as alpha) measured in broadband dielectric spectroscopy (DS) data can quantify pore-scale geometric changes impacting contaminant transport resulting from biomineralization; (H2) Physics-based modeling of high-frequency dispersions (henceforth referred to as beta) measured in broadband dielectric spectroscopy data can quantify rates of mineral growth in/on the cell wall; (H3) Application of this measurement and modeling approach can enhance geophysical interpretation of bioremediation experiments conducted at the RIFLE IFC by providing constraints on bioremediation efficiency (biomass concentration, mineral uptake within the cell wall, biomineralization rate). We tested H1 by performing DS measurements (alpha and beta range) on iron (Fe) particles of dimensions similar to microbial cells, dispersed within agar gels over a range of Fe concentrations. We have tested the ability of the physics-based modeling to predict volume concentrations of the Fe particles by assuming that the Fe particles are polarizable inclusions within an otherwise nonpolarizable medium. We evaluated the smallest volume concentration that can be detected with the DS method. Similar experiments and modeling have been performed on the sulfate-reducing bacteria D. vulgaris. Synchrotron x-ray absorption measurements were conducted to determine the local structure of biominerals coatings on D. vulgaris which were grown in the presence of different Fe concentrations. We imaged the mineral growth on cell wall using SEM. We used dielectric spectroscopy to differentiate between iron sulfide precipitates of biotic and abiotic nature. Biotic measurements were made on D. vulgaris bacteria grown in the presence of different concentrations of iron to form different thicknesses of iron sulfide precipitates around themselves and abiotic measurements were made on different concentrations of pyrrhotite particles suspended in agar. Results show a decrease in dielectric permittivity as a function of frequency for biotic minerals and an opposite trend is observed for abiotic minerals. Our results suggest that dielectric spectroscopy offers a noninvasive and fast approach for distinguishing between abiotic and biotic mineral precipitates.

PRODAN, CAMELIA; SLATER, LEE; NTARLAGIANNIS, DIMITRIOS

2012-09-01T23:59:59.000Z

329

Adopting Biophysics Methods in Pursuit of Biogeophysical Research: Advancing the measurement and modeling of electrical signatures of microbe-mineral transformations impacting contaminant transport  

SciTech Connect (OSTI)

This exploratory project involved laboratory experiments to investigate three hypotheses: (H1) Physics-based modeling of low-frequency dispersions (henceforth referred to as alpha) measured in broadband dielectric spectroscopy (DS) data can quantify pore-scale geometric changes impacting contaminant transport resulting from biomineralization; (H2) Physics-based modeling of high-frequency dispersions (henceforth referred to as beta) measured in broadband dielectric spectroscopy data can quantify rates of mineral growth in/on the cell wall; (H3) Application of this measurement and modeling approach can enhance geophysical interpretation of bioremediation experiments conducted at the RIFLE IFC by providing constraints on bioremediation efficiency (biomass concentration, mineral uptake within the cell wall, biomineralization rate). We tested H1 by performing DS measurements (alpha and beta range) on iron (Fe) particles of dimensions similar to microbial cells, dispersed within agar gels over a range of Fe concentrations. We have tested the ability of the physics-based modeling to predict volume concentrations of the Fe particles by assuming that the Fe particles are polarizable inclusions within an otherwise nonpolarizable medium. We evaluated the smallest volume concentration that can be detected with the DS method. Similar experiments and modeling have been performed on the sulfate-reducing bacteria D. vulgaris. Synchrotron x-ray absorption measurements were conducted to determine the local structure of biominerals coatings on D. vulgaris which were grown in the presence of different Fe concentrations. We imaged the mineral growth on cell wall using SEM. We used dielectric spectroscopy to differentiate between iron sulfide precipitates of biotic and abiotic nature. Biotic measurements were made on D. vulgaris bacteria grown in the presence of different concentrations of iron to form different thicknesses of iron sulfide precipitates around themselves and abiotic measurements were made on different concentrations of pyrrhotite particles suspended in agar. Results show a decrease in dielectric permittivity as a function of frequency for biotic minerals and an opposite trend is observed for abiotic minerals. Our results suggest that dielectric spectroscopy offers a noninvasive and fast approach for distinguishing between abiotic and biotic mineral precipitates.

Prodan, Camelia [NJIT

2013-06-14T23:59:59.000Z

330

Impact of risk sharing on competitive bidding in truckload transportation  

E-Print Network [OSTI]

The purpose of this research was to evaluate whether a shipper's fuel surcharge (FSC) program affected its per-load transportation costs in the United States full-truckload (TL) transportation industry. In this study, we ...

Abramson, Molly (Molly Elizabeth)

2012-01-01T23:59:59.000Z

331

Ordered quantum dot molecules and single quantum dots formed by self-organized anisotropic strain engineering  

SciTech Connect (OSTI)

An ordered lattice of lateral InAs quantum dot (QD) molecules is created by self-organized anisotropic strain engineering of an (In,Ga)As/GaAs superlattice (SL) template on GaAs(311)B by molecular-beam epitaxy, constituting a Turing pattern in solid state. The SL template and InAs QD growth conditions, such as the number of SL periods, growth temperatures, amount and composition of deposited (In,Ga)As, and insertion of Al-containing layers, are studied in detail for an optimized QD ordering within and among the InAs QD molecules on the SL template nodes, which is evaluated by atomic force microscopy. The average number of InAs QDs within the molecules is controlled by the thickness of the upper GaAs separation layer on the SL template and the (In,Ga)As growth temperature in the SL. The strain-correlated growth in SL template formation and QD ordering is directly confirmed by high-resolution x-ray diffraction. Ordered arrays of single InAs QDs on the SL template nodes are realized for elevated SL template and InAs QD growth temperatures together with the insertion of a second InAs QD layer. The InAs QD molecules exhibit strong photoluminescence (PL) emission up to room temperature. Temperature-dependent PL measurements exhibit an unusual behavior of the full width at half maximum, indicating carrier redistribution solely within the QD molecules.

Lippen, T. van; Noetzel, R.; Hamhuis, G.J.; Wolter, J.H. [European Institute of Telecommunication Technologies/Communication Technology, Basic Research and Applications (eiTT/COBRA) Inter-University Research Institute, Eindhoven University of Technology, 5600 MB Eindhoven (Netherlands)

2005-02-15T23:59:59.000Z

332

ADVANCED CUTTINGS TRANSPORT STUDY  

SciTech Connect (OSTI)

The Advanced Cuttings Transport Study (ACTS) was a 5-year JIP project undertaken at the University of Tulsa (TU). The project was sponsored by the U.S. Department of Energy (DOE) and JIP member companies. The objectives of the project were: (1) to develop and construct a new research facility that would allow three-phase (gas, liquid and cuttings) flow experiments under ambient and EPET (elevated pressure and temperature) conditions, and at different angle of inclinations and drill pipe rotation speeds; (2) to conduct experiments and develop a data base for the industry and academia; and (3) to develop mechanistic models for optimization of drilling hydraulics and cuttings transport. This project consisted of research studies, flow loop construction and instrumentation development. Following a one-year period for basic flow loop construction, a proposal was submitted by TU to the DOE for a five-year project that was organized in such a manner as to provide a logical progression of research experiments as well as additions to the basic flow loop. The flow loop additions and improvements included: (1) elevated temperature capability; (2) two-phase (gas and liquid, foam etc.) capability; (3) cuttings injection and removal system; (4) drill pipe rotation system; and (5) drilling section elevation system. In parallel with the flow loop construction, hydraulics and cuttings transport studies were preformed using drilling foams and aerated muds. In addition, hydraulics and rheology of synthetic drilling fluids were investigated. The studies were performed under ambient and EPET conditions. The effects of temperature and pressure on the hydraulics and cuttings transport were investigated. Mechanistic models were developed to predict frictional pressure loss and cuttings transport in horizontal and near-horizontal configurations. Model predictions were compared with the measured data. Predominantly, model predictions show satisfactory agreements with the measured data. As a part of this project, instrumentation was developed to monitor cuttings beds and characterize foams in the flow loop. An ultrasonic-based monitoring system was developed to measure cuttings bed thickness in the flow loop. Data acquisition software controls the system and processes the data. Two foam generating devices were designed and developed to produce foams with specified quality and texture. The devices are equipped with a bubble recognition system and an in-line viscometer to measure bubble size distribution and foam rheology, respectively. The 5-year project is completed. Future research activities will be under the umbrella of Tulsa University Drilling Research Projects. Currently the flow loop is being used for testing cuttings transport capacity of aqueous and polymer-based foams under elevated pressure and temperature conditions. Subsequently, the effect of viscous sweeps on cuttings transport under elevated pressure and temperature conditions will be investigated using the flow loop. Other projects will follow now that the ''steady state'' phase of the project has been achieved.

Stefan Miska; Troy Reed; Ergun Kuru

2004-09-30T23:59:59.000Z

333

Simulation of quantum dots size and spacing effect for intermediate band solar cell application based on InAs quantum dots arrangement in GaAs  

SciTech Connect (OSTI)

Intermediate band solar cell (IBSC) has become a promising technology in increasing solar cell efficiency. In this work we compare absorption coefficient profile between InAs quantum dots with GaAs bulk. We calculate the efficiency of GaAs bulk and GaAs doped with 2, 5, and 10 nm InAs quantum dot. Effective distances in quantum dot arrangement based on electron tunneling consideration were also calculated. We presented a simple calculation method with low computing power demand. Results showed that arrangement of quantum dot InAs in GaAs can increase solar cell efficiency from 23.9 % initially up to 60.4%. The effective distance between two quantum dots was found 2 nm in order to give adequate distance to prevent electron tunneling and wave functions overlap.

Hendra, P. I. B., E-mail: ib.hendra@gmail.com; Rahayu, F., E-mail: ib.hendra@gmail.com; Darma, Y., E-mail: ib.hendra@gmail.com [Physical Vapor Deposition Laboratory, Physics of Material Electronics Research, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia)

2014-03-24T23:59:59.000Z

334

Feasibility study for a transportation operations system cask maintenance facility  

SciTech Connect (OSTI)

The US Department of Energy (DOE), Office of Civilian Radioactive Waste Management (OCRWM) is responsible for the development of a waste management program for the disposition of spent nuclear fuel (SNF) and high-level waste (HLW). The program will include a transportation system for moving the nuclear waste from the sources to a geologic repository for permanent disposal. Specially designed casks will be used to safely transport the waste. The cask systems must be operated within limits imposed by DOE, the Nuclear Regulatory Commission (NRC), and the Department of Transportation (DOT). A dedicated facility for inspecting, testing, and maintaining the cask systems was recommended by the General Accounting Office (in 1979) as the best means of assuring their operational effectiveness and safety, as well as regulatory compliance. In November of 1987, OCRWM requested a feasibility study be made of a Cask Maintenance Facility (CMF) that would perform the required functions. 46 refs., 16 figs., 13 tabs.

Rennich, M.J.; Medley, L.G.; Attaway, C.R.

1991-01-01T23:59:59.000Z

335

Environmental Research Center to  

E-Print Network [OSTI]

, sustainable fuels, transportation systems, and solar energy By Sean Nealon On MAY 10, 2012 The world's largest the center has branched out into solar energy and energy storage research, which has created an important and presentations from student alumni on atmospheric processes, emissions, transportation systems and sustainable

336

Thanks go to Mumtaz Hussain and Dilip Parajuli for excellent research assistance.1 The limited amount of empirical work on transport costs include Sampson and Yeats (1976) and Pace2  

E-Print Network [OSTI]

amount of empirical work on transport costs include Sampson and Yeats (1976) and Pace2 (1979) on OECD of labor was likely to develop first along sea coasts and navigable rivers, where transport costs were determinants of a country's development prospects? Though interest in transport costs has recently risen

337

Electric Vehicle Research Group  

E-Print Network [OSTI]

.................................................................................9 From diesel to electric: a new era in personnel transport for underground coal minesElectric Vehicle Research Group Annual Report 2012 #12;Table of Contents Executive Summary................................................................................8 C2-25 Electric Vehicle Drivetrain

Liley, David

338

Greening Transportation  

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 LearningGetGraphene's 3D CounterpartDepartmentTransportation

339

Transportation Infrastructure  

Office of Environmental Management (EM)

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 EnergyEnergyENERGYWomen Owned SmallOf The 2012 Greenbuy3 Archive Transportation Fact of the Week

340

Research and development of Proton-Exchange-Membrane (PEM) fuel cell system for transportation applications. Fuel cell infrastructure and commercialization study  

SciTech Connect (OSTI)

This paper has been prepared in partial fulfillment of a subcontract from the Allison Division of General Motors under the terms of Allison`s contract with the U.S. Department of Energy (DE-AC02-90CH10435). The objective of this task (The Fuel Cell Infrastructure and Commercialization Study) is to describe and prepare preliminary evaluations of the processes which will be required to develop fuel cell engines for commercial and private vehicles. This report summarizes the work undertaken on this study. It addresses the availability of the infrastructure (services, energy supplies) and the benefits of creating public/private alliances to accelerate their commercialization. The Allison prime contract includes other tasks related to the research and development of advanced solid polymer fuel cell engines and preparation of a demonstration automotive vehicle. The commercialization process starts when there is sufficient understanding of a fuel cell engine`s technology and markets to initiate preparation of a business plan. The business plan will identify each major step in the design of fuel cell (or electrochemical) engines, evaluation of the markets, acquisition of manufacturing facilities, and the technical and financial resources which will be required. The process will end when one or more companies have successfully developed and produced fuel cell engines at a profit. This study addressed the status of the information which will be required to prepare business plans, develop the economic and market acceptance data, and to identify the mobility, energy and environment benefits of electrochemical or fuel cell engines. It provides the reader with information on the status of fuel cell or electrochemical engine development and their relative advantages over competitive propulsion systems. Recommendations and descriptions of additional technical and business evaluations that are to be developed in more detail in Phase II, are included.

NONE

1996-11-01T23:59:59.000Z

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


341

Resonant scattering of surface plasmon polaritons by dressed quantum dots  

SciTech Connect (OSTI)

The resonant scattering of surface plasmon-polariton waves (SPP) by embedded semiconductor quantum dots above the dielectric/metal interface is explored in the strong-coupling regime. In contrast to non-resonant scattering by a localized dielectric surface defect, a strong resonant peak in the spectrum of the scattered field is predicted that is accompanied by two side valleys. The peak height depends nonlinearly on the amplitude of SPP waves, reflecting the feedback dynamics from a photon-dressed electron-hole plasma inside the quantum dots. This unique behavior in the scattered field peak strength is correlated with the occurrence of a resonant dip in the absorption spectrum of SPP waves due to the interband photon-dressing effect. Our result on the scattering of SPP waves may be experimentally observable and applied to spatially selective illumination and imaging of individual molecules.

Huang, Danhong; Cardimona, Dave [Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117 (United States); Easter, Michelle [Department of Mechanical Engineering, Stevens Institute of Technology, 1 Castle Point Terrace, Hoboken, New Jersey 07030 (United States); Gumbs, Godfrey [Department of Physics and Astronomy, Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065 (United States); Maradudin, A. A. [Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Lin, Shawn-Yu [Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180 (United States); Zhang, Xiang [Department of Mechanical Engineering, 3112 Etcheverry Hall, University of California at Berkeley, Berkeley, California 94720 (United States)

2014-06-23T23:59:59.000Z

342

Features of the electronic spectrum in a type-I core - shell quantum dot  

SciTech Connect (OSTI)

The model is proposed, which allows one to solve the problem of finding the energy spectrum and the wave function of an electron in a type-I core - shell quantum dot. It is shown that the size of the core and shell can serve as control parameters for the optimisation of the energy structure of the quantum dot in order to obtain the real structures with desired electrophysical and optical properties. (quantum dots)

Igoshina, S E; Karmanov, A A [Penza State University, Penza (Russian Federation)

2013-01-31T23:59:59.000Z

343

Formation of long-range ordered quantum dots arrays in amorphous matrix by ion beam irradiation  

SciTech Connect (OSTI)

We demonstrate the production of a well ordered three-dimensional array of Ge quantum dots in amorphous silica matrix. The ordering is achieved by ion beam irradiation and annealing of a multilayer film. Structural analysis shows that quantum dots nucleate along the direction of the ion beam used for irradiation, while the mutual distance of the quantum dots is determined by the diffusion properties of the multilayer material rather than the distances between traces of ions that are used for irradiation.

Buljan, M. [Charles University in Prague, Prague 12116 (Czech Republic); Ruder Boskovic Institute, Zagreb 10000 (Croatia); Bogdanovic-Radovic, I.; Karlusic, M.; Desnica, U. V.; Radic, N.; Dubcek, P. [Ruder Boskovic Institute, Zagreb 10000 (Croatia); Drazic, G. [Jozef Stefan Institute, Ljubljana 1000 (Slovenia); Salamon, K. [Institute of Physics, Zagreb 10000 (Croatia); Bernstorff, S. [Sincrotrone Trieste, Basovizza 34012 (Italy); Holy, V. [Charles University in Prague, Prague 12116 (Czech Republic)

2009-08-10T23:59:59.000Z

344

Phonon-mediated coupling between quantum dots through an off-resonant microcavity  

E-Print Network [OSTI]

We present experimental results showing phonon-mediated coupling between two quantum dots embedded inside a photonic crystal microcavity. With only one of the dots being spectrally close to the cavity, we observe both frequency up-conversion and down-conversion of the pump light via a $\\sim1.2$ THz phonon. We demonstrate this process for both weak and strong regimes of dot-cavity coupling, and provide a simple theoretical model explaining our observations.

Arka Majumdar; Michal Bajcsy; Armand Rundquist; Erik Kim; Jelena Vuckovic

2011-11-30T23:59:59.000Z

345

Quantum optics and cavity QED with quantum dots in photonic crystals  

E-Print Network [OSTI]

This chapter will primarily focus on the studies of quantum optics with semiconductor, epitaxially grown quantum dots embedded in photonic crystal cavities. We will start by giving brief introductions into photonic crystals and quantum dots, then proceed with the introduction to cavity quantum electrodynamics (QED) effects, with a particular emphasis on the demonstration of these effects on the quantum dot-photonic crystal platform. Finally, we will focus on the applications of such cavity QED effects.

Jelena Vuckovic

2014-02-11T23:59:59.000Z

346

Optical Nonlinearities and Ultrafast Carrier Dynamics in Semiconductor Quantum Dots  

SciTech Connect (OSTI)

Low-dimensional semiconductors have attracted great interest due to the potential for tailoring their linear and nonlinear optical properties over a wide-range. Semiconductor nanocrystals (NC's) represent a class of quasi-zero-dimensional objects or quantum dots. Due to quantum cordhement and a large surface-to-volume ratio, the linear and nonlinear optical properties, and the carrier dynamics in NC's are significantly different horn those in bulk materials. napping at surface states can lead to a fast depopulation of quantized states, accompanied by charge separation and generation of local fields which significantly modifies the nonlinear optical response in NC's. 3D carrier confinement also has a drastic effect on the energy relaxation dynamics. In strongly confined NC's, the energy-level spacing can greatly exceed typical phonon energies. This has been expected to significantly inhibit phonon-related mechanisms for energy losses, an effect referred to as a phonon bottleneck. It has been suggested recently that the phonon bottleneck in 3D-confined systems can be removed due to enhanced role of Auger-type interactions. In this paper we report femtosecond (fs) studies of ultrafast optical nonlinearities, and energy relaxation and trap ping dynamics in three types of quantum-dot systems: semiconductor NC/glass composites made by high temperature precipitation, ion-implanted NC's, and colloidal NC'S. Comparison of ultrafast data for different samples allows us to separate effects being intrinsic to quantum dots from those related to lattice imperfections and interface properties.

Klimov, V.; McBranch, D.; Schwarz, C.

1998-08-10T23:59:59.000Z

347

Photovoltaic performance of ultra-small PbSe quantum dots  

E-Print Network [OSTI]

Y; Alivisatos, AP, Photovoltaic Devices Employing TernaryPhotovoltaic performance of ultra-small PbSe quantum dotsquantum dot, solar cell, photovoltaic, quantum size effect

Ma, Wanli

2014-01-01T23:59:59.000Z

348

Comment on "Analysis of quantum coherent semiconductor quantum dot p-i-n junction photovoltaic cells"  

E-Print Network [OSTI]

This is a comment on PRL paper by A.P. Kirk "Analysis of quantum coherent semiconductor quantum dot p-i-n junction photovoltaic cells"

Scully, Marlan O

2010-01-01T23:59:59.000Z

349

artificial quantum-dot helium: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

350

acid-capped cdse quantum-dot: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

351

Coulomb blockade and transport in a chain of one-dimensional quantum dots  

E-Print Network [OSTI]

PRL 97, 096601 (2006) PHYSICAL REVIEW LETTERS week ending 1The American Physical Society PRL 97, 096601 (2006) PHYSICALwhere V b T for j and k PRL 97, 096601 (2006) PHYSICAL

Fogler, Michael M; Malinin, S V; Nattermann, T

2006-01-01T23:59:59.000Z

352

Nanocrystalline Silicon Quantum Dot Light Emitting Diodes Using Metal Oxide Charge Transport Layers.  

E-Print Network [OSTI]

??Silicon-based lighting show promise for display and solid state lighting use. Here we demonstrate a novel thin film light emitting diode device using nanocrystalline silicon… (more)

Zhu, Jiayuan

2013-01-01T23:59:59.000Z

353

State DOT: Ohio Department of Transportation State Report Questions on NDT Testing  

E-Print Network [OSTI]

testing methods for concrete materials, concrete pavements, and overlays are you trying? If there are low cylinder strengths on Structure concrete, our QC/QA specification requires that the contractor test used for our QC/QA spec. On the occasion where the in-place concrete has been tested using NDT on our

354

Environmental Transport Division: 1979 report  

SciTech Connect (OSTI)

During 1979, the Environmental Transport Division (ETD) of the Savannah River Laboratory conducted atmospheric, terrestrial, aquatic, and marine studies, which are described in a series of articles. Separate abstracts were prepared for each. Publications written about the 1979 research are listed at the end of the report.

Murphy, C.E. Jr.; Schubert, J.F.; Bowman, W.W.; Adams, S.E.

1980-03-01T23:59:59.000Z

355

Environmental Aspects of Air Transportation  

E-Print Network [OSTI]

Innovation Center #12;2 Aviation and Climate #12;3 Combustion Products Commercial jet fuel is essentially FOR AIR TRANSPORTATIONCENTER FOR AIR TRANSPORTATION SYSTEMS RESEARCHSYSTEMS RESEARCH Metron Aviation GMU, and the process inside real engines is considerably more complex. Typical emission rates for jet aircraft (grams

356

8, 41174154, 2008 Lagrangian transport  

E-Print Network [OSTI]

ACPD 8, 4117­4154, 2008 Lagrangian transport modelling for CO2 G. Pieterse et al. Title Page of the Netherlands, Petten, The Netherlands 2 Institute for Marine and Atmospheric Research Utrecht, Utrecht, The Netherlands 3 Colorado State University, Fort Collins, USA Received: 4 December 2007 ­ Accepted: 11 January

Paris-Sud XI, Université de

357

PUTTING TRANSPORT INTO CLIMATE POLICY AGENDA  

E-Print Network [OSTI]

sector in the climate change negotiation. WCTRS could help UNFCCC and the IPCC to promote this processPUTTING TRANSPORT INTO CLIMATE POLICY AGENDA World Conference on Transport Research Society (WCTRS Africa Other LA Brazil Middle East India Other Asia China Eastern Europe Asian TE Russia Korea Japan

Takahashi, Ryo

358

Packaging and Transportation for Offsite Shipment of Materials of National Security Interest  

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

The purpose of this Order is to make clear that the packaging and transportation of all offsite shipments of materials of national security interest for DOE must be conducted in accordance with DOT and Nuclear Regulatory Commission (NRC) regulations that would be applicable to comparable commercial shipments, except where an alternative course of action is identified in this Order. Cancels DOE O 461.1A.

2010-12-20T23:59:59.000Z

359

Modeling the impact of complexity on transportation  

E-Print Network [OSTI]

This thesis aimed to understand the drivers of total transportation costs during supply chain complexity events, in particular new product launches, in a fast moving consumer goods company in the United States. The research ...

Fernandez, Jose A. (Jose Antonio Fernandez Chavira)

2012-01-01T23:59:59.000Z

360

Metropolitan Accessibility and Transportation Sustainability:Sustainability  

E-Print Network [OSTI]

Metropolitan Accessibility and Transportation Sustainability:Sustainability: Comparative Reduce (fulfillment of)Promote Sustainability: Meet needs of (fulfillment of) needs present Institute SMART Sustainable Mobility and Accessibility Research andSMART Sustainable Mobility

Papalambros, Panos

Note: This page contains sample records for the topic "transportation dot research" 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

Influence of Topological Spin Fluctuations on Charge Transport  

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

Influence of Topological Spin Fluctuations on Charge Transport Print Layered transition metal oxides are the focus of intense research efforts because they might clarify the...

362

Transporting particulate material  

DOE Patents [OSTI]

A material transporting system comprises a material transporting apparatus (100) including a material transporting apparatus hopper structure (200, 202), which comprises at least one rotary transporting apparatus; a stationary hub structure (900) constraining and assisting the at least one rotary transporting apparatus; an outlet duct configuration (700) configured to permit material to exit therefrom and comprising at least one diverging portion (702, 702'); an outlet abutment configuration (800) configured to direct material to the outlet duct configuration; an outlet valve assembly from the material transporting system venting the material transporting system; and a moving wall configuration in the material transporting apparatus capable of assisting the material transporting apparatus in transporting material in the material transporting system. Material can be moved from the material transporting apparatus hopper structure to the outlet duct configuration through the at least one rotary transporting apparatus, the outlet abutment configuration, and the outlet valve assembly.

Aldred, Derek Leslie (North Hollywood, CA); Rader, Jeffrey A. (North Hollywood, CA); Saunders, Timothy W. (North Hollywood, CA)

2011-08-30T23:59:59.000Z

363

Layered insulator hexagonal boron nitride for surface passivation in quantum dot solar cell  

SciTech Connect (OSTI)

Single crystalline, two dimensional (2D) layered insulator hexagonal boron nitride (h-BN), is demonstrated as an emerging material candidate for surface passivation on mesoporous TiO{sub 2}. Cadmium selenide (CdSe) quantum dot based bulk heterojunction (BHJ) solar cell employed h-BN passivated TiO{sub 2} as an electron acceptor exhibits photoconversion efficiency ?46% more than BHJ employed unpassivated TiO{sub 2}. Dominant interfacial recombination pathways such as electron capture by TiO{sub 2} surface states and recombination with hole at valence band of CdSe are efficiently controlled by h-BN enabled surface passivation, leading to improved photovoltaic performance. Highly crystalline, confirmed by transmission electron microscopy, dangling bond-free 2D layered h-BN with self-terminated atomic planes, achieved by chemical exfoliation, enables efficient passivation on TiO{sub 2}, allowing electronic transport at TiO{sub 2}/h-BN/CdSe interface with much lower recombination rate compared to an unpassivated TiO{sub 2}/CdSe interface.

Shanmugam, Mariyappan; Jain, Nikhil; Jacobs-Gedrim, Robin; Yu, Bin, E-mail: byu@albany.edu [College of Nanoscale Science and Engineering, State University of New York, Albany, New York 12203 (United States)] [College of Nanoscale Science and Engineering, State University of New York, Albany, New York 12203 (United States); Xu, Yang [Institute of Microelectronics and Optoelectronics, Zhejiang University, Hangzhou 310027 (China)] [Institute of Microelectronics and Optoelectronics, Zhejiang University, Hangzhou 310027 (China)

2013-12-09T23:59:59.000Z

364

Transportation Research Record: Journal of the Transportation Research Board, No. 1984, Transportation Research Board of the National Academies, Washington,  

E-Print Network [OSTI]

requires the design and implementation of local storm water management plans, and many communities. In New Hampshire the poor performance of current storm water management is demonstrated by the fact- ventional best management practices (BMPs). The 21-km2 Great Bay Estuary is fed by a 2,400-km2 watershed. I

365

Transportation Research Record: Journal of the Transportation Research Board, No. 2340, Transportation Research Board of the National Academies, Washington,  

E-Print Network [OSTI]

mobile sources: acrolein; benzene; 1,3-butadiene; diesel particulate matter (PM) plus diesel exhaust

Bertini, Robert L.

366

Transportation Security | ornl.gov  

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

Transportation Security SHARE Global Threat Reduction Initiative Transportation Security Cooperation Secure Transport Operations (STOP) Box Security of radioactive material while...

367

Strategic Freight Transportation Contract Procurement  

E-Print Network [OSTI]

Based Procurement for Transportation Services, Journal ofCoia, A. , Evolving transportation exchanges, World trade,an Auction Based Transportation Marketplace, Transportation

Nandiraju, Srinivas

2006-01-01T23:59:59.000Z

368

Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor  

E-Print Network [OSTI]

Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor A. PACS: 74.25.Ha; 74.76.)w Keywords: Nanostructures; Anti-dots; Commensurability 1. Introduction atomic layers on periodical substrate [5], magnetic bubble arrays [6] and the magnetically induced Wigner

Metlushko, Vitali

369

Large open telescope: size-upscaling from DOT to LOT Robert H. Hammerschlaga  

E-Print Network [OSTI]

Large open telescope: size-upscaling from DOT to LOT Robert H. Hammerschlaga , Aswin P. L. Jägersb, telescope drives 1. INTRODUCTION The Dutch Open Telescope (DOT) on the Canary island La Palma consists temperature homogeneous. No warm air bubbles are forced upwards against the closed wall of a tower and no heat

Rutten, Rob

370

Self-assembly of silicide quantum dot arrays on stepped silicon surfaces by reactive epitaxy  

E-Print Network [OSTI]

investigated on the epitaxy and self- organization of laterally nanostructured transition metal TM silicideSelf-assembly of silicide quantum dot arrays on stepped silicon surfaces by reactive epitaxy L to be a flexible and a convenient method for the preparation of dense arrays of Co silicide quantum dots

Ortega, Enrique

371

Review paper: Toward highly efficient quantum-dot-and dye-sensitized solar cells  

E-Print Network [OSTI]

Review paper: Toward highly efficient quantum-dot- and dye-sensitized solar cells Hongsik Choi Interface control Light harvesting Tandem solar cell a b s t r a c t Dye- and quantum-dot-sensitized solar technologies of silicon-based solar cells should be resolved [7]. Dye-sensitized solar cells (DSSCs) have been

Park, Byungwoo

372

Evidence for formation of multi-quantum dots in hydrogenated graphene  

E-Print Network [OSTI]

Abstract We report the experimental evidence for the formation of multi-quantum dots in a hydrogenated single-layer graphene flake. The existence of multi-quantum dots is supported by the low-temperature measurements on a field effect transistor...

Chuang, Chiashain; Puddy, Reuben K; Connolly, Malcolm R; Lo, Shun-Tsung; Lin, Huang-De; Chen, Tse-Ming; Smith, Charles G; Liang, Chi-Te

2012-08-16T23:59:59.000Z

373

Rapid degradation of CdSe/ZnS colloidal quantum dots exposed to gamma irradiation  

E-Print Network [OSTI]

- grade their optical properties. In this paper, we report on the effects of gamma irradiationRapid degradation of CdSe/ZnS colloidal quantum dots exposed to gamma irradiation Nathan J. Withers of 137 Cs gamma irradiation on photoluminescent properties of CdSe/ZnS colloidal quantum dots

New Mexico, University of

374

Arrays of nanoscale magnetic dots: Fabrication by x-ray interference lithography and characterization  

SciTech Connect (OSTI)

X-ray interference lithography (XIL) was employed in combination with electrodeposition to fabricate arrays of nanoscale nickel dots which are uniform over 40 {mu}m and have periods down to 71 nm. Using extreme-ultraviolet light, XIL has the potential to produce magnetic dot arrays over large areas with periods well below 50 nm, and down to a theoretical limit of 6.5 nm for a 13 nm x-ray wavelength. In the nickel dot arrays, we observed the effect of interdot magnetic stray field interactions. Measuring the hysteresis loops using the magneto-optical Kerr effect, a double switching via the vortex state was observed in the nickel dots with diameters down to 44 nm and large dot separations. As the dot separations are reduced to below around 50 nm a single switching, occurring by collective rotation of the magnetic spins, is favored due to interdot magnetic stray field interactions. This results in magnetic flux closure through several dots which could be visualized with micromagnetic simulations. Further evidence of the stray field interactions was seen in photoemission electron microscopy images, where bands of contrast corresponding to chains of coupled dots were observed.

Heyderman, L.J.; Solak, H.H.; David, C.; Atkinson, D.; Cowburn, R.P.; Nolting, F. [Laboratory for Micro- and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland); Nanomagnetism Group, Department of Physics, University of Durham, Rochester Building, Science Laboratories, South Road, Durham DH1 3LE (United Kingdom); Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)

2004-11-22T23:59:59.000Z

375

Bioimaging 4 (1996) 93106. Printed in the UK Fluorescent dot counting in  

E-Print Network [OSTI]

Bioimaging 4 (1996) 93­106. Printed in the UK Fluorescent dot counting in interphase cell nuclei allows the enumeration of chromosomal abnormalities in interphase cell nuclei. This process is called dot counting. To estimate the distribution of chromosomes per cell, a large number of cells have to be analysed

van Vliet, Lucas J.

376

Light extraction analysis and enhancement in a quantum dot light emitting diode  

E-Print Network [OSTI]

Light extraction analysis and enhancement in a quantum dot light emitting diode Ruidong Zhu outcoupling and angular performance of quantum dot light emitting diode (QLED). To illustrate the design principles, we use a red QLED as an example and compare its performance with an organic light emitting diode

Wu, Shin-Tson

377

Mid Infrared Focal Plane Arrays With Nanoscale Quantum Dots and Superlattices  

E-Print Network [OSTI]

Mid Infrared Focal Plane Arrays With Nanoscale Quantum Dots and Superlattices S. Krishna Center- Molecular beam epitaxy, Nanoscale, Quantum Dots Superlattices, Antimonides, Mid-infrared photodetector. I. INTRODUCTION Presently, the state of the art photon detectors for the mid wave infrared (MWIR, 3-5 µm) and long

Krishna, Sanjay

378

Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot  

E-Print Network [OSTI]

Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot PL and absorption spectroscopy on the same single self- assembled quantum dot in a charge the corresponding transition in absorption. We have developed a model of the Coulomb blockade to account

Ludwig-Maximilians-Universität, München

379

Enlarged symmetry and coherence in arrays of quantum dots A. V. Onufriev and J. B. Marston  

E-Print Network [OSTI]

. A Hubbard model then describes a pillar array of coupled dots, and at half-filling the system can be mapped materials. Recent advances in nanofabrication tech- niques offer the possibility of constructing artificial- teractions that lift the degeneracy. However, as Stafford and Das Sarma noticed,3 semiconducting quantum dots

Onufriev, Alexey

380

Photovoltaic quantum dot quantum cascade infrared photodetector A. V. Barve and S. Krishna  

E-Print Network [OSTI]

Photovoltaic quantum dot quantum cascade infrared photodetector A. V. Barve and S. Krishna Citation subject to AIP license or copyright; see http://apl.aip.org/about/rights_and_permissions #12;Photovoltaic) Design and characterization of a quantum dot quantum cascade detector for photovoltaic midwave infrared

Krishna, Sanjay

Note: This page contains sample records for the topic "transportation dot research" 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

Ambient-Processed Colloidal Quantum Dot Solar Cells via Individual Pre-Encapsulation of Nanoparticles  

E-Print Network [OSTI]

Ambient-Processed Colloidal Quantum Dot Solar Cells via Individual Pre-Encapsulation, 2010; E-mail: ted.sargent@utoronto.ca Solution-processed solar cells employing colloidal quantum dots-junction and tandem solar cells both rely on IR-band-gap semiconductors, there has been much recent emphasis

382

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot  

E-Print Network [OSTI]

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot C. L dynamics of a single Mn atom in a laser driven CdTe quantum dot is addressed theoretically. Recent of single Mn-doped CdTe dots, information about the quantum spin state of a single Mn atom is extracted from

Paris-Sud XI, Université de

383

REQUEST FOR PROPOSALS LOUISIANA TRANSPORTATION RESEARCH CENTER  

E-Print Network [OSTI]

or side fire radar, and closed circuit television cameras to detect congestion and incidents on roads

Harms, Kyle E.

384

25th Annual CTS Transportation Research Conference  

E-Print Network [OSTI]

-Tension Ducts 7,000 psi Concrete beams 1 (1x7) post-tensioned CFCC strands 3/8 (1x7) non-prestressed CFCC strands 0.6 (1x7) prestressed CFCC strands Main Components of Bulb-T Bridge Model #12;· Overall value

Minnesota, University of

385

NREL: Transportation Research - Data, Models, and Tools  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn F. Geisz,Aerial photo ofStudy Transmission

386

New Transportation Technology | GE Global Research  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn CyberNeutrons usedDOENew Technique Gives a

387

NTRC | National Transportation Research Center | 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 May Jun Jul(Summary)morphinanInformation Desert Southwest Regionat Cornell Batteries & FuelTechnologies TheStateWorkforceNTRC

388

NREL: Transportation Research - Alternative Fuels Characterization  

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 and ResourcesOtherForecastingAlternative Fuel Fleet

389

NREL: Transportation Research - E-Roadway Animation  

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 and ResourcesOtherForecastingAlternative FuelPetroleumE-Roadway

390

NREL: Transportation Research - Electric Vehicle Grid Integration  

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 and ResourcesOtherForecastingAlternative

391

NREL: Transportation Research - Fleet Test and Evaluation  

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 and Evaluation Photo of medium-duty truck with

392

NREL: Transportation Research - Future Automotive Systems Technology  

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 and Evaluation Photo of medium-dutySimulator

393

NREL: Transportation Research - Systems Analysis and Integration  

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 and Evaluation PhotoSystems Analysis and

394

NREL: Transportation Research - Truck Stop Electrification Testing  

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 and Evaluation

395

NREL: Transportation Research - Vehicle Thermal Management  

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 and EvaluationManagement Image of two cars and

396

NREL: Transportation Research - Working with Us  

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 and EvaluationManagement Image of twoWorking with

397

Transport Research Laboratory | 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:FAQ < RAPID Jump to:Seadov Pty LtdSteen,LtdInformation Dixie ValleyLibrary <NAMA Database

398

The Northwestern University Transportation Center presents: Sergio Jara-Diaz  

E-Print Network [OSTI]

´ behavior and value of time, time use, multi-output cost functions, public transport and optimal pricing. He Engineering Universidad de Chile Optimal Design and Pricing of Public Transport (still crazy after all), the research on the relation between optimal pricing and design of public transport services has remained

Bustamante, Fabián E.

399

NEVADA UNIVERSITY TRANSPORTATION CENTER UNIVERSITY OF NEVADA, LAS VEGAS  

E-Print Network [OSTI]

NEVADA UNIVERSITY TRANSPORTATION CENTER UNIVERSITY OF NEVADA, LAS VEGAS 2011-2012 ANNUAL REPORT #12 University Transportation Center (NUTC) Vision: The NUTC will strive to become a nationally recognized center of excellence for research in planning, operations and management of sustainable transportation systems

Hemmers, Oliver

400

MTL ANNUAL RESEARCH REPORT 2014 Energy 75 Energy: Photovoltaics, Energy  

E-Print Network [OSTI]

MTL ANNUAL RESEARCH REPORT 2014 Energy 75 Energy: Photovoltaics, Energy Harvesting, Batteries, Fuel.....................................79 Energy Level Modification in Lead Sulfide Quantum Dot Photovoltaics Through Ligand Exchange Crystalline silicon (c-Si) is the dominant material in the photovoltaic industry, yet silicon is expensive

Reif, Rafael

Note: This page contains sample records for the topic "transportation dot research" 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

Single photon emission from site-controlled InGaN/GaN quantum dots  

SciTech Connect (OSTI)

Single photon emission was observed from site-controlled InGaN/GaN quantum dots. The single-photon nature of the emission was verified by the second-order correlation function up to 90?K, the highest temperature to date for site-controlled quantum dots. Micro-photoluminescence study on individual quantum dots showed linearly polarized single exciton emission with a lifetime of a few nanoseconds. The dimensions of these quantum dots were well controlled to the precision of state-of-the-art fabrication technologies, as reflected in the uniformity of their optical properties. The yield of optically active quantum dots was greater than 90%, among which 13%–25% exhibited single photon emission at 10?K.

Zhang, Lei; Hill, Tyler A.; Deng, Hui, E-mail: dengh@umich.edu [Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109 (United States)] [Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109 (United States); Teng, Chu-Hsiang; Lee, Leung-Kway; Ku, Pei-Cheng, E-mail: peicheng@umich.edu [Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Ave., Ann Arbor, Michigan 48109 (United States)] [Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Ave., Ann Arbor, Michigan 48109 (United States)

2013-11-04T23:59:59.000Z

402

Intermediate-band photosensitive device with quantum dots embedded in energy fence barrier  

DOE Patents [OSTI]

A plurality of layers of a first semiconductor material and a plurality of dots-in-a-fence barriers disposed in a stack between a first electrode and a second electrode. Each dots-in-a-fence barrier consists essentially of a plurality of quantum dots of a second semiconductor material embedded between and in direct contact with two layers of a third semiconductor material. Wave functions of the quantum dots overlap as at least one intermediate band. The layers of the third semiconductor material are arranged as tunneling barriers to require a first electron and/or a first hole in a layer of the first material to perform quantum mechanical tunneling to reach the second material within a respective quantum dot, and to require a second electron and/or a second hole in a layer of the first semiconductor material to perform quantum mechanical tunneling to reach another layer of the first semiconductor material.

Forrest, Stephen R. (Ann Arbor, MI); Wei, Guodan (Ann Arbor, MI)

2010-07-06T23:59:59.000Z

403

Coupling of PbS Quantum Dots to Photonic Crystal Cavities at Room Temperature  

E-Print Network [OSTI]

We demonstrate the coupling of PbS quantum dot emission to photonic crystal cavities at room temperature. The cavities are defined in 33% Al, AlGaAs membranes on top of oxidized AlAs. Quantum dots were dissolved in Poly-methyl-methacrylate (PMMA) and spun on top of the cavities. Quantum dot emission is shown to map out the structure resonances, and may prove to be viable sources for room temperature cavity coupled single photon generation for quantum information processing applications. These results also indicate that such commercially available quantum dots can be used for passive structure characterization. The deposition technique is versatile and allows layers with different dot densities and emission wavelengths to be re-deposited on the same chip.

Ilya Fushman; Dirk Englund; Jelena Vuckovic

2005-05-14T23:59:59.000Z

404

Single photon absorption and dynamic control of a coupled quantum dot-cavity system  

E-Print Network [OSTI]

We theoretically investigate the dynamic interaction of a quantum dot in a nanocavity with timesymmetric single photon pulses. The simulations, based on a wavefunction approach, reveal that almost perfect single photon absorption occurs for quantum dot-cavity systems operating on the edge between strong and weak coupling regime. The computed maximum absorptions probability is close to unity for pulses with a typical length comparable to the half of the Rabi period. Furthermore, the dynamic control of the quantum dot energy via electric fields allows the freezing of the light-matter interaction leaving the quantum dot in its excited state. Shaping of single photon wavepackets by the electric field control is limited by the occurrence of chirping of the single photon pulse. This understanding of the interaction of single photon pulses with the quantum dot-cavity system provides the basis for the development of advanced protocols for quantum information processing in the solid state.

Robert Johne; Andrea Fiore

2011-10-11T23:59:59.000Z

405

Transportation Efficiency Resources  

Broader source: Energy.gov [DOE]

Transportation efficiency reduces travel demand as measured by vehicle miles traveled (VMT). While transportation efficiency policies are often implemented under local governments, national and...

406

Chapter 12 Transportation  

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

2-1 November 2012 Words in bold and acronyms are defined in Chapter 32, Glossary and Acronyms. Chapter 12 Transportation This chapter describes existing transportation resources in...

407

Sustainability and Transport  

E-Print Network [OSTI]

2005. Integrating Sustainability into the Trans- portationTHOUGHT PIECE Sustainability and Transport by Richardof the concept of sustainability to transport planning. In

Gilbert, Richard

2006-01-01T23:59:59.000Z

408

Photoluminescence-enhanced biocompatible quantum dots by phospholipid functionalization  

SciTech Connect (OSTI)

A simple two-step strategy using phospholipid (PPL) to functionalize core/shell CdSe/ZnS quantum dots (QDs) has been described. The experimental data show that the use of S-H terminated PPL results not only in the high colloidal stability of core/shell CdSe/ZnS QDs in the aqueous phase, but also in the significant enhancement of photoluminescence. The degree of the enhancement is a function of the PPL-CdSe/ZnS QDs sample concentration. These results might be promising for future biological platform in new devices ranging from photovoltaic cells to biosensors and other devices.

Shi Yunfeng [School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); He Peng [Department of Chemistry, North Carolina State University, Raleigh, NC 27695 (United States)], E-mail: phe@ncsu.edu; Zhu Xinyuan [School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); Instrumental Analysis Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030 (China)], E-mail: xyzhu@sjtu.edu.cn

2008-10-02T23:59:59.000Z

409

Electric Field effects on quantum correlations in semiconductor quantum dots  

E-Print Network [OSTI]

We study the effect of external electric bias on the quantum correlations in the array of optically excited coupled semiconductor quantum dots. The correlations are characterized by the quantum discord and concurrence and are observed using excitonic qubits. We employ the lower bound of concurrence for thermal density matrix at different temperatures. The effect of the F\\"orster interaction on correlations will be studied. Our theoretical model detects nonvanishing quantum discord when the electric field is on while concurrence dies, ensuring the existence of nonclassical correlations as measured by the quantum discord.

S. Shojaei; M. Mahdian; R. Yousefjani

2012-05-01T23:59:59.000Z

410

Activation of molecular catalysts using semiconductor quantum dots  

DOE Patents [OSTI]

Photocatalytic materials based on coupling of semiconductor nanocrystalline quantum dots (NQD) and molecular catalysts. These materials have capability to drive or catalyze non-spontaneous chemical reactions in the presence of visible radiation, ultraviolet radiation, or both. The NQD functions in these materials as a light absorber and charge generator. Following light absorption, the NQD activates a molecular catalyst adsorbed on the surface of the NQD via transfer of one or more charges (either electrons or electron-holes) from the NQD to the molecular catalyst. The activated molecular catalyst can then drive a chemical reaction. A photoelectrolytic device that includes such photocatalytic materials is also described.

Meyer, Thomas J. (Chapel Hill, NC); Sykora, Milan (Los Alamos, NM); Klimov, Victor I. (Los Alamos, NM)

2011-10-04T23:59:59.000Z

411

Packaging and transportation of radioactive liquid at the U.S. Department of Energy Hanford Site  

SciTech Connect (OSTI)

Beginning in the 1940`s, radioactive liquid waste has been generated at the US Department of Energy (DOE) Hanford Site as a result of defense material production. The liquid waste is currently stored in 177 underground storage tanks. As part of the tank remediation efforts, Type B quantity packagings for the transport of large volumes of radioactive liquids are required. There are very few Type B liquid packagings in existence because of the rarity of large-volume radioactive liquid payloads in the commercial nuclear industry. Development of aboveground transport systems for large volumes of radioactive liquids involves institutional, economic, and technical issues. Although liquid shipments have taken place under DOE-approved controlled conditions within the boundaries of the Hanford Site for many years, offsite shipment requires compliance with DOE, US Nuclear Regulatory Commission (NRC), and US Department of Transportation (DOT) directives and regulations. At the present time, no domestic DOE nor NRC-certified Type B packagings with the appropriate level of shielding are available for DOT-compliant transport of radioactive liquids in bulk volumes. This paper will provide technical details regarding current methods used to transport such liquids on and off the Hanford Site, and will provide a status of packaging development programs for future liquid shipments.

Smith, R.J.

1995-02-01T23:59:59.000Z

412

Application of United States Department of Transportation regulations to hazardous material and waste shipments on the Hanford Site  

SciTech Connect (OSTI)

All hazardous material and waste transported over roadways open to the public must be in compliance with the US Department of Transportation (DOT) regulations. The DOT states that the hazardous material regulations (HMR) also apply to government-owned, contractor-operated (GOCO) transportation operations over any US Department of Energy (DOE) site roadway where the public has free and unrestricted access. Hazardous material and waste in packages that do not meet DOE regulations must be transported on DOE site roadways in a manner that excludes the public and nonessential workers. At the DOE Richland Field Office (the Hanford Site), hazardous material and waste movements that do not meet DOE requirements are transported over public access roadways during off-peak hours with the roadways barricaded. These movements are accomplished using a transportation plan that involves the DOE, DOE contractors, and private utilities who operate on or near the Hanford Site. This method, which is used at the Hanford Site to comply with DOE regulations onsite, can be communicated to other DOE sites to provide a basis for achieving consistency in similar transportation operations.

Burnside, M.E.

1992-01-01T23:59:59.000Z

413

Session: Discussion of Research Needs  

SciTech Connect (OSTI)

This final session at the Wind Energy and Birds/Bats workshop was lead by a facilitator who asked participants for their overall reaction to the research that had been presented during the workshop. Questions addressed by workshop participants included: how do you develop trust and confidence in the research, what are some of the specific gaps in our understanding of wind energy's impact on birds and bats; how do we prioritize and proceed with closing the data/research gaps; how do we connect the dots and bring various research and mapping efforts together; given gaps in the data, what are the critical questions we need to answer to make project decisions now; and, how do we track/influence the policies that will shape wind energy development. Conclusions reached regarding these questions are included in summary form.

anon.

2004-09-01T23:59:59.000Z

414

Quantum Dots-based Reverse Phase Protein Microarray  

SciTech Connect (OSTI)

CdSe nanocrystals, also called quantum dots (Qdots) are a novel class of fluorophores, which have a diameter of a few nanometers and possess high quantum yield, tunable emission wavelength and photostability. They are an attractive alternative to conventional fluorescent dyes. Quantum dots can be silanized to be soluble in aqueous solution under biological conditions, and thus be used in bio-detection. In this study, we established a novel Qdot-based technology platform that can perform accurate and reproducible quantification of protein concentration in a crude cell lysate background. Protein lysates have been spiked with a target protein, and a dilution series of the cell lysate with a dynamic range of three orders of magnitude has been used for this proof-of-concept study. The dilution series has been spotted in microarray format, and protein detection has been achieved with a sensitivity that is at least comparable to standard commercial assays, which are based on horseradish peroxidase (HRP) catalyzed diaminobenzidine (DAB) chromogenesis. The data obtained through the Qdot method has shown a close linear correlation between relative fluorescence unit and relative protein concentration. The Qdot results are in almost complete agreement with data we obtained with the well-established HRP-DAB colorimetric array (R{sup 2} = 0.986). This suggests that Qdots can be used for protein quantification in microarray format, using the platform presented here.

Shingyoji, Masato; Gerion, Daniele; Pinkel, Dan; Gray, Joe W.; Chen, Fanqing

2005-07-15T23:59:59.000Z

415

Theory of dynamic nuclear polarization and feedback in quantum dots  

E-Print Network [OSTI]

An electron confined in a quantum dot interacts with its local nuclear spin environment through the hyperfine contact interaction. This interaction combined with external control and relaxation or measurement of the electron spin allows for the generation of dynamic nuclear polarization. The quantum nature of the nuclear bath, along with the interplay of coherent external fields and incoherent dynamics in these systems renders a wealth of intriguing phenomena seen in recent experiments such as electron Zeeman frequency focusing, hysteresis, and line dragging. We develop in detail a fully quantum, self-consistent theory that can be applied to such experiments and that moreover has predictive power. Our theory uses the operator sum representation formalism in order to incorporate the incoherent dynamics caused by the additional, Markovian bath, which in self-assembled dots is the vacuum field responsible for electron-hole optical recombination. The beauty of this formalism is that it reduces the complexity of the problem by encoding the joint dynamics of the external coherent and incoherent driving in an effective dynamical map that only acts on the electron spin subspace. This together with the separation of timescales in the problem allows for a tractable and analytically solvable formalism. The key role of entanglement between the electron spin and the nuclear spins in the formation of dynamic nuclear polarization naturally follows from our solution. We demonstrate the theory in detail for an optical pulsed experiment and present an in-depth discussion and physical explanation of our results.

Sophia E. Economou; Edwin Barnes

2014-04-06T23:59:59.000Z

416

Graduate Certificate in Transportation  

E-Print Network [OSTI]

Graduate Certificate in Transportation Nohad A. Toulan School of Urban Studies and Planning of Engineering and Computer Science integrated transportation systems. The Graduate Certificate in Transportation their capabilities. Students in the program can choose among a wide range of relevant courses in transportation

Bertini, Robert L.

417

Regional Transportation Coordination Study  

E-Print Network [OSTI]

Regional Planning Commission Wanda Carter-Dyer Public Transportation Coordinator Texas Department of Transportation Councilperson Debra Martinez Briseno Cities in Calhoun County Laura G. Sanders Executive Director Golden Crescent Workforce... Regional Planning Commission Wanda Carter-Dyer Public Transportation Coordinator Texas Department of Transportation Councilperson Debra Martinez Briseno Cities in Calhoun County Laura G. Sanders Executive Director Golden Crescent Workforce...

Golden Crescent Regional Planning Commission

418

Multi-modal Transportation > Highway Transportation > Trucking > Railroad transportation > Public transit > Rural transportation > Rural transit > Freig pipeline transportation > Airport planning and development > Airport maintenance > Bicycle and pedestr  

E-Print Network [OSTI]

Multi-modal Transportation > Highway Transportation > Trucking > Railroad transportation > Public transit > Rural transportation > Rural transit > Freig pipeline transportation > Airport planning and development > Airport maintenance > Bicycle and pedestrian > Ports and waterways >>> Transportation ope

419

Graduate Studies Transportation Systems Engineering  

E-Print Network [OSTI]

Graduate Studies Transportation Systems Engineering TRANSPORTATION SYSTEMS The transportation that transportation systems engineering can promote a thriving economy and a better quality of life by ensuring that transportation systems themselves affect the environment through operations, construction, and maintenance

Jacobs, Laurence J.

420

Introduction Transport in disordered graphene  

E-Print Network [OSTI]

Introduction Transport in disordered graphene Summary Ballistic transport in disordered graphene P, Gornyi, Mirlin Ballistic transport in disordered graphene #12;Introduction Transport in disordered graphene Summary Outline 1 Introduction Model Experimental motivation Transport in clean graphene 2

Fominov, Yakov

Note: This page contains sample records for the topic "transportation dot research" 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

Tuning the properties of Ge-quantum dots superlattices in amorphous silica matrix through deposition conditions  

SciTech Connect (OSTI)

In this work, we investigate the structural properties of Ge quantum dot lattices in amorphous silica matrix, prepared by low-temperature magnetron sputtering deposition of (Ge+SiO{sub 2})/SiO{sub 2} multilayers. The dependence of quantum dot shape, size, separation, and arrangement type on the Ge-rich (Ge + SiO{sub 2}) layer thickness is studied. We show that the quantum dots are elongated along the growth direction, perpendicular to the multilayer surface. The size of the quantum dots and their separation along the growth direction can be tuned by changing the Ge-rich layer thickness. The average value of the quantum dots size along the lateral (in-plane) direction along with their lateral separation is not affected by the thickness of the Ge-rich layer. However, the thickness of the Ge-rich layer significantly affects the quantum dot ordering. In addition, we investigate the dependence of the multilayer average atomic composition and also the quantum dot crystalline quality on the deposition parameters.

Pinto, S. R. C.; Ramos, M. M. D.; Gomes, M. J. M. [University of Minho, Centre of Physics and Physics Department, Braga 4710-057 (Portugal); Buljan, M. [Ruder Boskovic Institute, Bijenicka cesta 54, Zagreb 10000 (Croatia); Chahboun, A. [University of Minho, Centre of Physics and Physics Department, Braga 4710-057 (Portugal); Physics Department, FST Tanger, Tanger BP 416 (Morocco); Roldan, M. A.; Molina, S. I. [Departamento de Ciencia de los Materiales e Ing. Metalurgica y Q. I., Universidad de Cadiz, Cadiz (Spain); Bernstorff, S. [Sincrotrone Trieste, SS 14 km163, 5, Basovizza 34012 (Italy); Varela, M.; Pennycook, S. J. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Barradas, N. P.; Alves, E. [Instituto Superior Tecnico e Instituto Tecnologico e Nuclear-, EN10, Sacavem 2686-953 (Portugal)

2012-04-01T23:59:59.000Z

422

Tuning the properties of Ge-quantum dots superlattices in amorphous silica matrix through deposition conditions  

SciTech Connect (OSTI)

In this work, we investigate the structural properties of Ge quantum dot lattices in amorphous silica matrix, prepared by low-temperature magnetron sputtering deposition of (Ge+SiO{sub 2})/SiO{sub 2} multilayers. The dependence of quantum dot shape, size, separation, and arrangement type on the Ge-rich (Ge + SiO{sub 2}) layer thickness is studied. We show that the quantum dots are elongated along the growth direction, perpendicular to the multilayer surface. The size of the quantum dots and their separation along the growth direction can be tuned by changing the Ge-rich layer thickness. The average value of the quantum dots size along the lateral (in-plane) direction along with their lateral separation is not affected by the thickness of the Ge-rich layer. However, the thickness of the Ge-rich layer significantly affects the quantum dot ordering. In addition, we investigate the dependence of the multilayer average atomic composition and also the quantum dot crystalline quality on the deposition parameters.

Pinto, S. [University of Minho, Portugal; Roldan Gutierrez, Manuel A [ORNL; Ramos, M. M.D. [University of Minho, Portugal; Gomes, M.J.M. [University of Minho, Portugal; Molina, S. I. [Universidad de Cadiz, Spain; Pennycook, Stephen J [ORNL; Varela del Arco, Maria [ORNL; Buljan, M. [R. Boskovic Institute, Zagreb, Croatia; Barradas, N. [Instituto Tecnologico e Nuclear (ITN), Lisbon, Portugal; Alves, E. [Instituto Tecnologico e Nuclear (ITN), Lisbon, Portugal; Chahboun, A. [FST Tanger, Morocco; Bernstorff, S. [Sincrotrone Trieste, Basovizza, Italy

2012-01-01T23:59:59.000Z

423

Innovation Impact: Breakthrough Research Results (Brochure)  

SciTech Connect (OSTI)

The Innovation Impact brochure captures key breakthrough results across NREL's primary areas of renewable energy and energy efficiency research: solar, wind, bioenergy, transportation, buildings, analysis, and manufacturing technologies.

Not Available

2013-07-01T23:59:59.000Z

424

NREL: Vehicles and Fuels Research - Fuels Performance  

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

about related NREL biomass research projects that focus on converting renewable biomass feedstocks into transportation fuels, chemicals, and products. For more information, see...

425

Quantum interference in exciton-Mn spin interactions in a CdTe semiconductor quantum dot  

E-Print Network [OSTI]

We show theoretically and experimentally the existence of a new quantum interference(QI) effect between the electron-hole interactions and the scattering by a single Mn impurity. Theoretical model, including electron-valence hole correlations, the short and long range exchange interaction of Mn ion with the heavy hole and with electron and anisotropy of the quantum dot, is compared with photoluminescence spectroscopy of CdTe dots with single magnetic ions. We show how design of the electronic levels of a quantum dot enable the design of an exciton, control of the quantum interference and hence engineering of light-Mn interaction.

Trojnar, A; Kadantsev, E; Hawrylak, P; Goryca, M; Kazimierczuk, T; Kossacki, P; Wojnar, P; Potemski, M

2011-01-01T23:59:59.000Z

426

Quantum interference in exciton-Mn spin interactions in a CdTe semiconductor quantum dot  

E-Print Network [OSTI]

We show theoretically and experimentally the existence of a new quantum interference(QI) effect between the electron-hole interactions and the scattering by a single Mn impurity. Theoretical model, including electron-valence hole correlations, the short and long range exchange interaction of Mn ion with the heavy hole and with electron and anisotropy of the quantum dot, is compared with photoluminescence spectroscopy of CdTe dots with single magnetic ions. We show how design of the electronic levels of a quantum dot enable the design of an exciton, control of the quantum interference and hence engineering of light-Mn interaction.

A. Trojnar; M. Korkusinski; E. Kadantsev; P. Hawrylak; M. Goryca; T. Kazimierczuk; P. Kossacki; P. Wojnar; M. Potemski

2011-05-04T23:59:59.000Z

427

Strain-induced fundamental optical transition in (In,Ga)As/GaP quantum dots  

SciTech Connect (OSTI)

The nature of the ground optical transition in an (In,Ga)As/GaP quantum dot is thoroughly investigated through a million atoms supercell tight-binding simulation. Precise quantum dot morphology is deduced from previously reported scanning-tunneling-microscopy images. The strain field is calculated with the valence force field method and has a strong influence on the confinement potentials, principally, for the conduction band states. Indeed, the wavefunction of the ground electron state is spatially confined in the GaP matrix, close to the dot apex, in a large tensile strain region, having mainly Xz character. Photoluminescence experiments under hydrostatic pressure strongly support the theoretical conclusions.

Robert, C., E-mail: cedric.robert@insa-rennes.fr, E-mail: cedric.robert@tyndall.ie; Pedesseau, L.; Cornet, C.; Jancu, J.-M.; Even, J.; Durand, O. [Université Européenne de Bretagne, INSA Rennes, France and CNRS, UMR 6082 Foton, 20 Avenue des Buttes de Coësmes, 35708 Rennes (France)] [Université Européenne de Bretagne, INSA Rennes, France and CNRS, UMR 6082 Foton, 20 Avenue des Buttes de Coësmes, 35708 Rennes (France); Nestoklon, M. O. [Ioffe Physico-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg (Russian Federation)] [Ioffe Physico-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg (Russian Federation); Pereira da Silva, K. [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain) [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain); Departamento de Física, Universidade Federal do Ceará, P.O. Box 6030, Fortaleza–CE, 60455-970 (Brazil); Alonso, M. I. [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain)] [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain); Goñi, A. R. [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain) [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain); ICREA, Passeig Lluís Companys 23, 08010 Barcelona (Spain); Turban, P. [Equipe de Physique des Surfaces et Interfaces, Institut de Physique de Rennes UMR UR1-CNRS 6251, Université de Rennes 1, F-35042 Rennes Cedex (France)] [Equipe de Physique des Surfaces et Interfaces, Institut de Physique de Rennes UMR UR1-CNRS 6251, Université de Rennes 1, F-35042 Rennes Cedex (France)

2014-01-06T23:59:59.000Z

428

Far off-resonant coupling between photonic crystal microcavity and single quantum dot with resonant excitation  

SciTech Connect (OSTI)

In this paper, we experimentally demonstrate that with sub-nanowatt coherent s-shell excitation of a single InAs quantum dot, off-resonant coupling of 4.1?nm is possible between L3 photonic crystal microcavity and the quantum dot at 50?K. This resonant excitation reduces strongly the effect of surrounding charges to quantum dot, multiexciton complexes and pure dephasing. It seems that this far off-resonant coupling is the result of increased number of acoustical phonons due to high operating temperature of 50?K. The 4.1?nm detuning is the largest amount for this kind of coupling.

Banihashemi, Mehdi; Ahmadi, Vahid, E-mail: v-ahmadi@modares.ac.ir [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of)] [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of); Nakamura, Tatsuya; Kojima, Takanori; Kojima, Kazunobu; Noda, Susumu [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)] [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)

2013-12-16T23:59:59.000Z

429

Theory of Electro-optic Modulation via a Quantum Dot Coupled to a Nano-resonator  

E-Print Network [OSTI]

In this paper, we analyze the performance of an electro-optic modulator based on a single quantum dot strongly coupled to a nano-resonator, where electrical control of the quantum dot frequency is achieved via quantum confined Stark effect. Using realistic system parameters, we show that modulation speeds of a few tens of GHz are achievable with this system, while the energy per switching operation can be as small as 0.5 fJ. In addition, we study the non-linear distortion, and the effect of pure quantum dot dephasing on the performance of the modulator.

Arka Majumdar; Nicolas Manquest; Andrei Faraon; Jelena Vuckovic

2009-11-27T23:59:59.000Z

430

Optical spectra and intensities of graphene magnetic dot bound to a negatively charged Coulomb impurity  

SciTech Connect (OSTI)

Employing numerical diagonalization, we study the optical properties of an electron in a monolayer-graphene magnetic dot bound to an off-center negatively charged Coulomb impurity based on the massless Dirac-Weyl model. Numerical results show that, since the electron-hole symmetry is broken by the Coulomb potential, the optical absorption spectra of the magnetic dot in the presence of a Coulomb impurity are different between the electron states and the hole states. Effects of both the magnetic field and the dot size on the absorption coefficient are presented as functions of the incident photon energies.

Lee, C. M., E-mail: mesimon-hk@yahoo.com.hk, E-mail: apkschan@cityu.edu.hk; Chan, K. S., E-mail: mesimon-hk@yahoo.com.hk, E-mail: apkschan@cityu.edu.hk [Department of Physics and Materials Science and Center for Functional Photonics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong (China); Shenzhen Research Institute, City University of Hong Kong, Shenzhen (China)

2014-07-28T23:59:59.000Z

431

Transportation Baseline Schedule  

SciTech Connect (OSTI)

The “1999 National Transportation Program - Transportation Baseline Report” presents data that form a baseline to enable analysis and planning for future Department of Energy (DOE) Environmental Management (EM) waste/material transportation. The companion “1999 Transportation ‘Barriers’ Analysis” analyzes the data and identifies existing and potential problems that may prevent or delay transportation activities based on the data presented. The “1999 Transportation Baseline Schedule” (this report) uses the same data to provide an overview of the transportation activities of DOE EM waste/materials. This report can be used to identify areas where stakeholder interface is needed, and to communicate to stakeholders the quantity/schedule of shipments going through their area. Potential bottlenecks in the transportation system can be identified; the number of packages needed, and the capacity needed at receiving facilities can be planned. This report offers a visualization of baseline DOE EM transportation activities for the 11 major sites and the “Geologic Repository Disposal” site (GRD).

Fawcett, Ricky Lee; John, Mark Earl

2000-01-01T23:59:59.000Z

432

Planning of feeding station installment for elec-tric urban public mass-transportation system  

E-Print Network [OSTI]

especially in the transportation sector, a key and viable approach is to use renewable energy such as wind 13th Swiss Transport Research Conference Monte Verità / Ascona, April 24 ­ 26, 2013 #12;Planning-based transportation infrastructure has led to renewed interest in electric transportation infrastructure, especially

Bierlaire, Michel

433

Washington State Department of Transportation energy efficiency guidelines for small buildings  

SciTech Connect (OSTI)

This document provides energy efficiency guidelines for the construction and remodel of small buildings owned by the Washington State Department of Transportation (DOT). For the purpose of these guidelines {open_quotes}small buildings{close_quotes} are defined as those under 25,000 square feet. However, many of the guidelines can also be used for larger buildings. DOT is responsible for 641 buildings totaling 2.2 million square feet and consuming approximately $1,087,500 dollars in energy costs each year. Building types covered by these guidelines are small offices, shop buildings, and heated and unheated storage. These building types can be expected to vary greatly in both the distribution and magnitude of energy use.

NONE

1995-03-01T23:59:59.000Z

434

Energy spectra of two electrons in a circular quantum dot  

E-Print Network [OSTI]

The electron interaction energy of two interacting electrons in a circular quantum dot (with hard wall confinement) is investigated in the framework of the semi-classical Wentzel-Kramers-Brillouin (WKB) approximation. The two electrons are assumed to be in an infinitely deep well of radius $r_0$, in a simple configuration with one electron fixed at the origin. The corresponding Schrodinger equation, with hard wall boundary conditions, is also solved exactly by numerical integration. It is observed that the agreement between the two energy values is quite good, suggesting that the WKB approximation works well for such a confined quantum system as well. This may provide motivation to extend this to more realistic confined potentials.

Anjana Sinha; Y. P. Varshni

2002-08-27T23:59:59.000Z

435

High performance tunnel injection quantum dot comb laser  

SciTech Connect (OSTI)

A high-speed multiwavelength quantum dot comb laser, grown by molecular beam epitaxy, is demonstrated. The device is characterized with a 75.9 nm (full width at half maximum) and a 91.4 nm (DELTA{sub -15dB}) wide lasing spectrum. There are 105 and 185 simultaneously emitted longitudinal modes with a maximum channel intensity nonuniformity of less than 3 dB in the spectral range of 1231-1252 nm and 1274-1311 nm, respectively, for a laser with 1040 mum cavity length. The channel spacing can be tuned with cavity length and remains invariant in the temperature range of 300-323 K. The small signal modulation bandwidth is 7.5 GHz.

Lee, C.-S.; Guo Wei; Basu, Debashish; Bhattacharya, Pallab [Department of Electrical Engineering and Computer Science, Solid State Electronics Laboratory, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)

2010-03-08T23:59:59.000Z

436

Fluorescence quenching of CdSe quantum dots on graphene  

SciTech Connect (OSTI)

We studied systematically the fluorescence quenching of CdSe quantum dots (QDs) on graphene and its multilayers, as well as graphene oxide (GO) and reduced graphene oxide (rGO). Raman intensity of QDs was used as a quantitatively measurement of its concentration in order to achieve a reliable quenching factor (QF). It was found that the QF of graphene (?13.1) and its multilayers is much larger than rGO (?4.4), while GO (?1.5) has the lowest quenching efficiency, which suggests that the graphitic structure is an important factor for quenching the fluorescence of QDs. It was also revealed that the QF of graphene is not strongly dependent on its thicknesses.

Guo, Xi Tao; Hua Ni, Zhen, E-mail: zhni@seu.edu.cn; Yan Nan, Hai; Hui Wang, Wen [Department of Physics and Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 211189 (China)] [Department of Physics and Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 211189 (China); Yan Liao, Chun [Physics Department, National Photoelectric Technology and Functional Materials and Application of Science and Technology International Cooperation Base, Northwest University, Xi'an 710069 (China)] [Physics Department, National Photoelectric Technology and Functional Materials and Application of Science and Technology International Cooperation Base, Northwest University, Xi'an 710069 (China); Zhang, Yan; Wei Zhao, Wei [Jiangsu Key Laboratory for Design and Fabrication of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189 (China)] [Jiangsu Key Laboratory for Design and Fabrication of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189 (China)

2013-11-11T23:59:59.000Z

437

Valley pair qubits in double quantum dots of gapped graphene  

E-Print Network [OSTI]

The rise of graphene opens a new door to qubit implementation, as discussed in the recent proposal of valley pair qubits in double quantum dots of gapped graphene (Wu et al., arXiv: 1104.0443 [cond-mat.mes-hall]). The work here presents the comprehensive theory underlying the proposal. It discusses the interaction of electrons with external magnetic and electric fields in such structures. Specifically, it examines a strong, unique mechanism, i.e., the analogue of the 1st-order relativistic effect in gapped graphene. This mechanism is state mixing free and allows, together with the electrically tunable exchange coupling, a fast, all-electric manipulation of qubits via electric gates, in the time scale of ns. The work also looks into the issue of fault tolerance in a typical case, yielding at 10oK a long qubit coherence time (~O(ms)).

G. Y. Wu; N. -Y. Lue; L. Chang

2011-07-03T23:59:59.000Z

438

Ultra-low density InAs quantum dots  

SciTech Connect (OSTI)

We show that InAs quantum dots (QDs) can be grown by molecular beam epitaxy (MBE) with an ultralow density of sin 10{sup 7} cm{sup -2} without any preliminary or post-growth surface treatment. The strain-induced QD formation proceeds via the standard Stranski-Krastanow mechanism, where the InAs coverage is decreased to 1.3-1.5 monolayers (MLs). By using off-cut GaAs (100) substrates, we facilitate the island nucleation in this subcritical coverage range without any growth interruption. The QD density dependences on the InAs coverage are studied by photoluminescence, atomic force microscopy, transmission electron microscopy, and are well reproduced by the universal double exponential shapes. This method enables the fabrication of InAs QDs with controllable density in the range 10{sup 7}-10{sup 8} cm{sup -2}, exhibiting bright photoluminescence.

Dubrovskii, V. G., E-mail: dubrovskii@mail.ioffe.ru; Cirlin, G. E. [St. Petersburg Academic University Russian Academy of Sciences (Russian Federation)] [St. Petersburg Academic University Russian Academy of Sciences (Russian Federation); Brunkov, P. A. [Ioffe Physical Technical Institute Russian Academy of Sciences (Russian Federation)] [Ioffe Physical Technical Institute Russian Academy of Sciences (Russian Federation); Perimetti, U.; Akopyan, N. [Delft University of Technology, Quantum Transport, Kavli Institute of Nanoscience (Netherlands)] [Delft University of Technology, Quantum Transport, Kavli Institute of Nanoscience (Netherlands)

2013-10-15T23:59:59.000Z

439

Water Transport Within the STack: Water Transport Exploratory...  

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

Within the STack: Water Transport Exploratory Studies Water Transport Within the STack: Water Transport Exploratory Studies Part of a 100 million fuel cell award announced by DOE...

440

TEM Characterization of InAs/GaAs Quantum Dots Capped by a GaSb/GaAs Layer  

SciTech Connect (OSTI)

It is well known that there is intense interest in expanding the usable wavelength for electronic devices. This is one of the reasons to study new self-assembled semiconductor nanostructures. Telecommunication applications use InGaAsP/InP emitting at 1.3 and 1.55 m. Research efforts are dedicated to develop GaAs technology in order to achieve emission at the same range as InP, so GaAs could be used for optical fibre communications. Ga(As)Sb on InAs/GaAs quantum dots (QDs) is a promising nanostructure to be used in telecommunications. The introduction of antimony during or after the QDs growth is an effective solution to obtain a red shift in the emission wavelength, even at room temperature.

Beltran, AM [Universidad de Cadiz, Spain; Ben, Teresa [Universidad de Cadiz, Spain; Sanchez, AM [Universidad de Cadiz, Spain; Sales Lerida, David [ORNL; Chisholm, Matthew F [ORNL; Varela del Arco, Maria [ORNL; Pennycook, Stephen J [ORNL; Galindo, Pedro [Universidad de Cadiz, Spain; Ripalda, JM [Instituto de Microelectronica de Madrid (CNM, CSIC); Molina Rubio, Sergio I [ORNL

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY  

E-Print Network [OSTI]

by the NOAA Environmental Research Laboratories, in any advertising or sales promotion which would indicate directly or indirectly the advertised product to be used or purchased because of this NOAA Environmental of the transport and dispersion of pollutants; surface waves and oscillations-critical to lake transportation

442

Transportation Engineering University of Florida Revised: 2/3/09 Literature Search Strategies and Resources  

E-Print Network [OSTI]

Transportation Engineering University of Florida Revised: 2/3/09 Literature Search Strategies information from transportation journals, conferences proceedings, research reports and ongoing researchLink http://springerlink.com/home/main.mpx · Elsevier Transport Connect www.transportconnect.net Note

Slatton, Clint

443

Center for Transportation Studies Nohad A. Toulan School of Urban Studies and Planning  

E-Print Network [OSTI]

Center for Transportation Studies Nohad A. Toulan School of Urban Studies and Planning College-disciplinary research on multi-modal surface transportation issues; educating a diverse array of current practitioners and future leaders in the transportation field; and encouraging implementation of relevant research results

Bertini, Robert L.

444

Development of low-temperature solution-processed colloidal quantum dot-based solar cells  

E-Print Network [OSTI]

Solution-processed solar cells incorporating organic semiconductors and inorganic colloidal quantum dots (QDs) are potential alternatives to conventional solar cells fabricated via vacuum or high-temperature sintering ...

Chang, Liang-Yi, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

445

Efficient light emitting devices utilizing CdSe(ZnS) quantum dots in organic host matrices  

E-Print Network [OSTI]

We demonstrate efficient electroluminescence from thin film structures containing core-shell CdSe(ZnS) quantum dots dispersed in molecular organic host materials. In the most efficient devices, excitons are created on the ...

Coe-Sullivan, Seth (Seth Alexander)

2002-01-01T23:59:59.000Z

446

Luminescent, quantum dot-based anti-reflective coatings for crystalline silicon photovoltaics  

E-Print Network [OSTI]

This thesis demonstrates and evaluates the potential application of luminescent quantum dot/polymer solutions on crystalline silicon photovoltaics. After spin coating the QD/polymer onto silicon photodiodes, an increase ...

Bruer, Garrett (Garrett A.)

2010-01-01T23:59:59.000Z

447

Ligand Mediated Surface Reconstruction of Photoluminescent CdTe Quantum Dots.  

E-Print Network [OSTI]

??Enhancement of photoluminescence (PL) is observed for light-shielded dodecylamine-capped colloidal CdTe quantum dots (CdTe/DDA QDs) dispersed in toluene after washing and recapping. The PL quantum… (more)

Onnink, A.J.

2013-01-01T23:59:59.000Z

448

Compact biocompatible quantum dots via RAFT-mediated synthesis of imidazole-based random copolymer ligand  

E-Print Network [OSTI]

We present a new class of polymeric ligands for quantum dot (QD) water solubilization to yield biocompatible and derivatizable QDs with compact size (10?12 nm diameter), high quantum yields (>50%), excellent stability ...

Liu, Wenhao

449

Colloidal quantum-dot light-emitting diodes with metal-oxide charge  

E-Print Network [OSTI]

across the pixel area, and fabrication required the specialized deposition technique of energy-neutral over previously reported structures8,10 . Previous efforts at building colloidal quantum-dot (QD) LEDs concentrations and energy-band

450

Exchange Control of Nuclear Spin Diffusion in a Double Quantum Dot  

E-Print Network [OSTI]

The influence of gate-controlled two-electron exchange on the relaxation of nuclear polarization in small ensembles (N?10[superscript 6]) of nuclear spins is examined in a GaAs double quantum dot system. Waiting in the ...

Reilly, D. J.

451

Lateral heterojunction photodetector consisting of molecular organic and colloidal quantum dot thin films  

E-Print Network [OSTI]

exception being the dye- sensitized solar cell.3 Owing to its unique geometry, the present device also and that is sensitized across visible wavelengths by a thin film of colloidal CdSe nanocrystal quantum dots QDs . High

452

E-Print Network 3.0 - anisn format dot Sample Search Results  

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

the ANISN (Ref. 8), DOT (Ref. 9), and TWOTRAN (Ref. 10) codes. The continuous energy VIM Monte Carlo code... in Sec. VIII a r e derived from three- dimensional calculations....

453

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

454

Electrical excitation of colloidally synthesized quantum dots in metal oxide structures  

E-Print Network [OSTI]

This thesis develops methods for integrating colloidally synthesized quantum dots (QDs) and metal oxides in optoelectronic devices, presents three distinct light emitting devices (LEDs) with metal oxides surrounding a QD ...

Wood, Vanessa Claire

2010-01-01T23:59:59.000Z

455

InGaAs Quantum Dots Coupled to a Reservoir of Nonequilibrium Free Carriers  

E-Print Network [OSTI]

We discuss the impact of a 2D-charged carrier reservoir for high-speed optical amplification and modulated lasing in quantum dot (QD)-based devices by testing the amplification of short trains of high power, femtosecond ...

Laemmlin, Matthias

456

E-Print Network 3.0 - alloy quantum dots Sample Search Results  

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

a dilute nitride: InAsNGaAsSb, GaInAsInP and In... . QUANTUM DOT INTERMEDIATE BAND SOLAR CELL MATERIAL SYSTEMS WITH NEGLIGIBLE VALENCE BAND OFFSETS Michael Y... ABSTRACT In...

457

Physica E 32 (2006) 1416 Tuning the cross-gap transition energy of a quantum dot  

E-Print Network [OSTI]

; Spectroscopy; Energy tuning Self-assembled semiconductor quantum dots (QDs) are of great interest for quantum resistance bridge circuit in combination with a lock in amplifier is used to measure the change in resistance

Ludwig-Maximilians-Universität, München

2006-01-01T23:59:59.000Z

458

Developing an array of site-controlled pyramidal quantum dots emitting polarization-entangled photons  

SciTech Connect (OSTI)

We present a site-controlled, highly symmetric quantum dot system with a density of at least 15 % of polarization-entangled photon emitters. Fidelity values of the entangled state as high as 0.721±0.043 were found.

Juska, G.; Dimastrodonato, V.; Mereni, L. O.; Gocalinska, A.; Pelucchi, E. [Tyndall National Institute, University College Cork, Lee Maltings, Cork (Ireland)

2013-12-04T23:59:59.000Z

459

Quantum Dots Promise to Significantly Boost Solar Cell Efficiencies (Fact Sheet)  

SciTech Connect (OSTI)

In the search for a third generation of solar-cell technologies, a leading candidate is the use of 'quantum dots' -- tiny spheres of semiconductor material measuring only about 2-10 billionths of a meter in diameter. Quantum dots have the potential to dramatically increase the efficiency of converting sunlight into energy -- perhaps even doubling it in some devices -- because of their ability to generate more than one bound electron-hole pair, or exciton, per incoming photon. NREL has produced quantum dots using colloidal suspensions; then, using molecular self-assembly, they have been fabricated into the first-ever quantum-dot solar cells. While these devices operate with only 4.4% efficiency, they demonstrate the capability for low-cost manufacturing.

Not Available

2013-08-01T23:59:59.000Z

460

Efficiency loss mechanisms in colloidal quantum-dot light-emitting diodes  

E-Print Network [OSTI]

Saturated and tunable emission colors make colloidal quantum-dot light-emitting diodes (QD-LEDs) interesting for the next generation of display and lighting technologies. However, there still remain various hurdles to the ...

Shirasaki, Yasuhiro

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "transportation dot research" 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

TxDOT Best Practices Model and Implementation Guide for Advance Planning Risk Analysis for  

E-Print Network [OSTI]

0-5478-P2 TxDOT Best Practices Model and Implementation Guide for Advance Planning Risk Analysis?....................................................................................................1 1.2 Advance Planning Risk Analysis...........................................................................................................11 3.4 Philosophy of Use

Texas at Austin, University of

462

Two-Photon Oxygen Sensing with Quantum Dot-Porphyrin Conjugates  

E-Print Network [OSTI]

Supramolecular assemblies of a quantum dot (QD) associated to palladium(II) porphyrins have been developed to detect oxygen (pO[subscript 2]) in organic solvents. Palladium porphyrins are sensitive in the 0–160 Torr range, ...

Lemon, Christopher M.

463

Narrow-Band Absorption-Enhanced Quantum Dot/J-Aggregate Conjugates  

E-Print Network [OSTI]

We report narrow-band absorption enhancement of semiconductor nanocrystals via Förster resonance energy transfer from cyanine J-aggregates. These J-aggregated dyes associate electrostatically with short quantum-dot (QD) ...

Walker, Brian J.

464

Theoretical study of intraband optical transitions in conduction band of dot-in-a-well system  

SciTech Connect (OSTI)

We study numerically absorption optical spectra of n-doped InAs/In{sub 015}Ga{sub 085}As/GaAs quantum dot-in-a-well systems. The absorption spectra are mainly determined by the size of a quantum dot and have weak dependence on the thickness of quantum well and position of the dot in a well. The dot-in-a-well system is sensitive to both in-plane and out-of-plane polarizations of the incident light with much stronger absorption intensities for the in-plane-polarized light. The absorption spectrum of in-plane-polarized light has also a multi-peak structure with two or three peaks of comparable intensities, while the absorption spectrum of out-of-plane polarized light has a single well-pronounced peak.

Chaganti, Venkata R.; Apalkov, Vadym [Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30302 USA. (Georgia)] [Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30302 USA. (Georgia)

2014-02-15T23:59:59.000Z

465

(In,Mn)As quantum dots: Molecular-beam epitaxy and optical properties  

SciTech Connect (OSTI)

Self-assembled (In,Mn)As quantum dots are synthesized by molecular-beam epitaxy on GaAs (001) substrates. The experimental results obtained by transmission electron microscopy show that doping of the central part of the quantum dots with Mn does not bring about the formation of structural defects. The optical properties of the samples, including those in external magnetic fields, are studied.

Bouravleuv, A. D., E-mail: bour@mail.ioffe.ru; Nevedomskii, V. N. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Ubyivovk, E. V. [St. Petersburg State University (Russian Federation)] [St. Petersburg State University (Russian Federation); Sapega, V. F. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Khrebtov, A. I. [St. Petersburg Academic University, Nanotechnology Research and Education Centre (Russian Federation)] [St. Petersburg Academic University, Nanotechnology Research and Education Centre (Russian Federation); Samsonenko, Yu. B.; Cirlin, G. E.; Ustinov, V. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

2013-08-15T23:59:59.000Z

466

Two photon luminescence from quantum dots using broad and narrowband ultrafast laser pulses  

E-Print Network [OSTI]

TWO PHOTON LUMINESCENCE FROM QUANTUM DOTS USING BROAD AND NARROWBAND ULTRAFAST LASER PULSES A Thesis by HARIBHASKAR BALASUBRAMANIAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2007 Major Subject: Biomedical Engineering TWO PHOTON LUMINESCENCE FROM QUANTUM DOTS USING BROAD AND NARROWBAND ULTRAFAST LASER PULSES A Thesis by HARIBHASKAR...

Balasubramanian, Haribhaskar

2008-10-10T23:59:59.000Z

467

Off-resonant coupling between a single quantum dot and a nanobeam photonic crystal cavity  

E-Print Network [OSTI]

We demonstrate off-resonant coupling between a single quantum dot and a nanobeam photonic crystal cavity, under resonant excitation of the quantum dot or the cavity. These results are consistent with previous descriptions of off-resonant coupling as an incoherent phonon-mediated process. The extension of this phenomenon to a nanobeam photonic crystal cavity presents interesting possibilities for coherent control of this interaction by tailoring the phonon density of states.

Armand Rundquist; Arka Majumdar; Jelena Vuckovic

2011-10-05T23:59:59.000Z

468

Ultrafast photon-photon interaction in a strongly coupled quantum dot-cavity system  

E-Print Network [OSTI]

We study dynamics of the interaction between two weak light beams mediated by a strongly coupled quantum dot-photonic crystal cavity system. First, we perform all optical switching of a weak continuous-wave signal with a pulsed control beam, and then perform switching between two pulsed beams (40ps pulses) at the single photon level. Our results show that the quantum dot-nanocavity system creates strong, controllable interactions at the single photon level.

Dirk Englund; Arka Majumdar; Michal Bajcsy; Andrei Faraon; Pierre Petroff; Jelena vuckovic

2011-07-14T23:59:59.000Z

469

Transportation Analysis | Clean Energy | ORNL  

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

Transportation Analysis SHARE Transportation Analysis Transportation Analysis efforts at Oak Ridge National Laboratory contribute to the efficient, safe, and free movement of...

470

The universal radiative transport equation  

E-Print Network [OSTI]

THE UNIVERSAL RADIATIVE TRANSPORT EQUATION Rudolph W.The Universal Radiative Transport Equation Rudolph W.The various radiative transport equations used in general

Preisendorfer, Rudolph W

1959-01-01T23:59:59.000Z

471

Transportation Management Workshop: Proceedings  

SciTech Connect (OSTI)

This report is a compilation of discussions presented at the Transportation Management Workshop held in Gaithersburg, Maryland. Topics include waste packaging, personnel training, robotics, transportation routing, certification, containers, and waste classification.

Not Available

1993-10-01T23:59:59.000Z

472

Packaging and Transportation Safety  

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

Establishes safety requirements for the proper packaging and transportation of offsite shipments and onsite transfers of hazardous materials andor modal transport. Cancels DOE 1540.2 and DOE 5480.3

1995-09-27T23:59:59.000Z

473

Packaging and Transportation Safety  

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

Establishes safety requirements for the proper packaging and transportation of Department of Energy (DOE) offsite shipments and onsite transfers of hazardous materials and for modal transport. Canceled by DOE 460.1A

1995-09-27T23:59:59.000Z

474

Packaging and Transportation Safety  

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

Establishes safety requirements for the proper packaging and transportation of Department of Energy (DOE) offsite shipments and onsite transfers of hazardous materials and for modal transport. Cancels DOE O 460.1.

1996-10-02T23:59:59.000Z

475

Transportation Investment and  

E-Print Network [OSTI]

Transportation Investment and Economic Development: Has the TIED turned? David Levinson University Transportation Investments was Historically Concomitant with Land and Economic Development #12;Canals Railways Surfaced Roads Crude Oil Pipelines Gas Pipelines Telegraph 1825 1985 Proportion of Maximum Extent Growth

Levinson, David M.

476

Effect of quantum dot position and background doping on the performance of quantum dot enhanced GaAs solar cells  

SciTech Connect (OSTI)

The effect of the position of InAs quantum dots (QD) within the intrinsic region of pin-GaAs solar cells is reported. Simulations suggest placing the QDs in regions of reduced recombination enables a recovery of open-circuit voltage (V{sub OC}). Devices with the QDs placed in the center and near the doped regions of a pin-GaAs solar cell were experimentally investigated. While the V{sub OC} of the emitter-shifted device was degraded, the center and base-shifted devices exhibited V{sub OC} comparable to the baseline structure. This asymmetry is attributed to background doping which modifies the recombination profile and must be considered when optimizing QD placement.

Driscoll, Kristina, E-mail: kmdsps@rit.edu; Bennett, Mitchell F.; Polly, Stephen J.; Forbes, David V.; Hubbard, Seth M., E-mail: smhsps@rit.edu [NanoPower Research Laboratories, Rochester Institute of Technology, Rochester, New York (United States)

2014-01-13T23:59:59.000Z

477

Lubbock Metropolitan Transportation Plan  

E-Print Network [OSTI]

for Users (SAFETEA-LU) and its predecessors, the Transportation Equity Act for the 21st Century (TEA-21) and the Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991, specified the transportation systems on which certain federal funds can... in Chapter 5 ? Streets and Highways; Chapter 6 ? Public Transportation; Chapter 7 ? Bicycle and Pedestrian Plan; Chapter 8 ? Lubbock International Airport and Chapter 9 ? Railroads and Trucking. Federally funded transit projects were developed...

Lubbock Metropolitan Planning Organization

2007-09-18T23:59:59.000Z

478

Transportation and its Infrastructure  

E-Print Network [OSTI]

subsidies on fossil transport fuels, subsidies on commutingC. , 2003: Subsidies that encourage fossil fuel use in

2007-01-01T23:59:59.000Z

479

Northwestern University Transportation Center  

E-Print Network [OSTI]

Northwestern University Transportation Center 2011 Business Advisory Committee NUTC #12;#12;I have the pleasure of presenting our Business Advisory Committee members--a distinguished group of transportation industry lead- ers who have partnered with the Transportation Center in advancing the state of knowledge

Bustamante, Fabián E.

480

TRANSPORTATION: THE POTENTIAL  

E-Print Network [OSTI]

INTERMODAL TRANSPORTATION: THE POTENTIAL AND THE CHALLENGE A Summary Report 2003 #12;June 2003 To the Reader This report summarizes the second James L. Oberstar Forum on Transportation Policy and Technology. Over two days, we explored the chal- lenges and opportunities in intermodal transportation, addressing

Minnesota, University of

Note: This page contains sample records for the topic "transportation dot research" 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
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481

Introduction to Transportation Planning  

E-Print Network [OSTI]

Introduction to Transportation Planning CMP 4710/6710 Fall 2012 3 Credit Hours Room: ARCH 229 on a Saturday night, transportation is not an objective in and of itself, but a means to carry out the functions of daily living (i.e., it's a "derived good"). As a consequence, the transportation systems we build

Tipple, Brett

482

Rural Intelligent Transportation Systems  

E-Print Network [OSTI]

Rural Intelligent Transportation Systems In a technical session at the 2011 NACE conference, Dennis Foderberg of SEH Inc. discussed intelligent transportation systems (ITS) developed by SEH in collaboration with Network Transportation Technologies, Inc. These systems address the problem of crashes on low-volume roads

Minnesota, University of

483

Nanoscale engineering boosts performance of quantum dot light...  

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

researcher Young-Shin Park characterizing emission spectra of LEDs in the Los Alamos National Laboratory optical laboratory. Postdoctoral researcher Young-Shin Park...

484

ITS-Davis e-news, Issue 49 (August 2012) ITS-Davis e-news presents information on research, education, and outreach from the UC Davis Institute of Transportation Studies and its campus  

E-Print Network [OSTI]

, the UC Davis Policy Institute for Energy, Environment and the Economy concludes its second policy forum in energy purchases and water use. The policy forum series has highlighted recent work from UC Davis, education, and outreach from the UC Davis Institute of Transportation Studies and its campus affiliates. ITS-Davis

California at Davis, University of

485

Enhanced Two-Photon Processes in Quantum Dots inside Photonic Crystal Nanocavities and Quantum Information Processing Applications  

E-Print Network [OSTI]

We show that the two-photon transition rates of quantum dots coupled to nanocavities are enhanced by up to 8 orders of magnitude relative to quantum dots in bulk host. We then propose how to take advantage of this enhancement to implement coherent quantum dot excitation by two-photon absorption, entangled photon pair generation by two-photon spontaneous emission, and single-photon generation at telecommunication wavelengths by two-photon stimulated and spontaneous emission.

Ziliang Lin; Jelena Vuckovic

2009-07-02T23:59:59.000Z

486

Theory of contributon transport  

SciTech Connect (OSTI)

A general discussion of the physics of contributon transport is presented. To facilitate this discussion, a Boltzmann-like transport equation for contributons is obtained, and special contributon cross sections are defined. However, the main goal of this study is to identify contributon transport equations and investigate possible deterministic solution techniques. Four approaches to the deterministic solution of the contributon transport problem are investigated. These approaches are an attempt to exploit certain attractive properties of the contributon flux, psi = phi phi/sup +/, where phi and phi/sup +/ are the solutions to the forward and adjoint Boltzmann transport equations.

Painter, J.W.; Gerstl, S.A.W.; Pomraning, G.C.

1980-10-01T23:59:59.000Z

487

Center for Intermodal Transportation Safety  

E-Print Network [OSTI]

Center for Intermodal Transportation Safety and Security Panagiotis Scarlatos, Ph.D., Director Transportation Safety and Security #12;Center for Intermodal Transportation Safety and Security Partners #12 evacuations · Tracking systems for hazardous materials Center for Intermodal Transportation Safety

Fernandez, Eduardo

488

Public Works Transportation Infrastructure Study  

E-Print Network [OSTI]

Public Works Transportation Infrastructure Study Minneapolis City of Lakes Minneapolis Public Works Transportation Infrastructure Study #12;Public Works Transportation Infrastructure Study Minneapolis City Works Transportation Infrastructure Study Minneapolis City of Lakes Background: · Currently, funding

Minnesota, University of

489

Transportation System Requirements Document  

SciTech Connect (OSTI)

This Transportation System Requirements Document (Trans-SRD) describes the functions to be performed by and the technical requirements for the Transportation System to transport spent nuclear fuel (SNF) and high-level radioactive waste (HLW) from Purchaser and Producer sites to a Civilian Radioactive Waste Management System (CRWMS) site, and between CRWMS sites. The purpose of this document is to define the system-level requirements for Transportation consistent with the CRWMS Requirement Document (CRD). These requirements include design and operations requirements to the extent they impact on the development of the physical segments of Transportation. The document also presents an overall description of Transportation, its functions, its segments, and the requirements allocated to the segments and the system-level interfaces with Transportation. The interface identification and description are published in the CRWMS Interface Specification.

Not Available

1993-09-01T23:59:59.000Z

490

Transportation risk assessment for ethanol transport  

E-Print Network [OSTI]

(California, Texas Gulf Coast, New England Atlantic Coast) will be of particular interest. The goal is to conduct a quantitative risk assessment on the pipeline, truck, and rail transportation modes to these areas. As a result of the quantitative risk...

Shelton Davis, Anecia Delaine

2009-05-15T23:59:59.000Z

491

Electrically driven single photon emission from a CdSe/ZnSSe single quantum dot at 200?K  

SciTech Connect (OSTI)

High temperature operation of an electrically driven single photon emitter based on a single epitaxial quantum dot is reported. CdSe/ZnSSe/MgS quantum dots are embedded into a p-i-n diode architecture providing almost background free excitonic and biexcitonic electroluminescence from individual quantum dots through apertures in the top contacts. Clear antibunching with g{sup 2}(??=?0)?=?0.28?±?0.20 can be tracked up to T?=?200?K, representing the highest temperature for electrically triggered single photon emission from a single quantum dot device.

Quitsch, Wolf; Kümmell, Tilmar; Bacher, Gerd [Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen, Bismarckstraße 81, 47057 Duisburg (Germany); Gust, Arne; Kruse, Carsten; Hommel, Detlef [Institut für Festkörperphysik, Universität Bremen, Otto-Hahn-Allee 1, 28334 Bremen (Germany)

2014-09-01T23:59:59.000Z

492

Impact of heavy hole-light hole coupling on optical selection rules in GaAs quantum dots  

SciTech Connect (OSTI)

We report strong heavy hole-light hole mixing in GaAs quantum dots grown by droplet epitaxy. Using the neutral and charged exciton emission as a monitor we observe the direct consequence of quantum dot symmetry reduction in this strain free system. By fitting the polar diagram of the emission with simple analytical expressions obtained from k{center_dot}p theory we are able to extract the mixing that arises from the heavy-light hole coupling due to the geometrical asymmetry of the quantum dot.

Belhadj, T.; Amand, T.; Kunz, S.; Marie, X.; Urbaszek, B. [INSA-CNRS-UPS, LPCNO, Universite de Toulouse, 135 Av. Rangueil, 31077 Toulouse (France); Kunold, A. [INSA-CNRS-UPS, LPCNO, Universite de Toulouse, 135 Av. Rangueil, 31077 Toulouse (France); Departamento de Ciencias Basicas, UAM-A, Col. Reynosa Tamaulipas, 02200 Mexico D.F. (Mexico); Simon, C.-M. [INSA-CNRS-UPS, LPCNO, Universite de Toulouse, 135 Av. Rangueil, 31077 Toulouse (France); CNRS-UPS, LCAR, IRSAMC, Universite de Toulouse, 31062 Toulouse (France); Kuroda, T.; Abbarchi, M.; Mano, T.; Sakoda, K. [National Institute for Material Science, Namiki 1-1, Tsukuba 305-0044 (Japan)

2010-08-02T23:59:59.000Z

493

Passive solar buildings research  

SciTech Connect (OSTI)

This chapter covers research advances in passive solar buildings research during the time span from 1982 through 1991. These advances fall within the following categories: (1) short-term energy monitoring, (2) heat transport by natural convection within buildings, and (3) design guidelines and design tools. In short-term energy monitoring, a simulation model of the building is calibrated, based on data taken in a 3-day test. The method accurately predicts performance over an extended period. Heat transport through doorways is characterized for complex situations that arise in passive solar buildings. Simple concepts and models adequately describe the energy transport in many situations of interest. In a new approach, design guidelines are automatically generated for any specific locality. Worksheets or an accompanying computer program allow the designer to quickly and accurately evaluate performance and investigate design alternatives. 29 refs., 19 figs., 2 tabs.

Balcomb, J.D.

1992-12-31T23:59:59.000Z

494

Alternative Transportation Technologies: Hydrogen, Biofuels,...  

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

Transportation Technologies: Hydrogen, Biofuels, Advanced Efficiency, and Plug-in Hybrid Electric Vehicles Alternative Transportation Technologies: Hydrogen, Biofuels, Advanced...

495

A concept of a nonfissile uranium hexafluoride overpack for storage, transport, and processing of corroded cylinders  

SciTech Connect (OSTI)

There is a need to develop a means of safely transporting breached 48-in. cylinders containing depleted uranium hexafluoride (UF{sub 6}) from current storage locations to locations where the contents can be safely removed. There is also a need to provide a method of safely and easily transporting degraded cylinders that no longer meet the US Department of Transportation (DOT) and American National Standards Institute, Inc., (ANSI) requirements for shipments of depleted UF{sub 6}. A study has shown that an overpack can be designed and fabricated to satisfy these needs. The envisioned overpack will handle cylinder models 48G, 48X, and 48Y and will also comply with the ANSI N14.1 and the American Society of Mechanical Engineers (ASME) Sect. 8 requirements.

Pope, R.B.; Cash, J.M. [Oak Ridge National Lab., TN (United States); Singletary, B.H. [Lockheed Martin Energy Systems, Oak Ridge, TN (United States)

1996-06-01T23:59:59.000Z

496

Transportation Beyond 2000: Technologies Needed for Engineering Design  

SciTech Connect (OSTI)

The purpose of the workshop was to acquaint the staff of the NASA Langley Research Center with the broad spectrum of transportation challenges and concepts foreseen within the next 20 years. The hope is that material presented at the workshop and contained in this document will stimulate innovative high-payoff research directed towards the efficiency of future transportation systems. The workshop included five sessions designed to stress the factors that will lead to a revolution in the way one will travel in the 21st century. The first session provides the historical background and a general perspective for future transportation, including emerging transportation alternatives such as working at a distance. Personal travel is the subject of Session Two. The third session looks at mass transportation, including advanced rail vehicles, advanced commuter aircraft, and advanced transport aircraft. Separate abstracts have been submitted to the database for articles from this workshop.

Huebner, L.D.; Asbury, S.C.; Lamar, J.E.; Mckinley, R.E. Jr.; Scott, R.C.; Small, W.J.; Torres, A.O.

1996-02-01T23:59:59.000Z

497

Effect of shells on photoluminescence of aqueous CdTe quantum dots  

SciTech Connect (OSTI)

Graphical abstract: Size-tunable CdTe coated with several shells using an aqueous solution synthesis. CdTe/CdS/ZnS quantum dots exhibited high PL efficiency up to 80% which implies the promising applications for biomedical labeling. - Highlights: • CdTe quantum dots were fabricated using an aqueous synthesis. • CdS, ZnS, and CdS/ZnS shells were subsequently deposited on CdTe cores. • Outer ZnS shells provide an efficient confinement of electron and hole inside the QDs. • Inside CdS shells can reduce the strain on the QDs. • Aqueous CdTe/CdS/ZnS QDs exhibited high stability and photoluminescence efficiency of 80%. - Abstract: CdTe cores with various sizes were fabricated in aqueous solutions. Inorganic shells including CdS, ZnS, and CdS/ZnS were subsequently deposited on the cores through a similar aqueous procedure to investigate the effect of shells on the photoluminescence properties of the cores. In the case of CdTe/CdS/ZnS quantum dots, the outer ZnS shell provides an efficient confinement of electron and hole wavefunctions inside the quantum dots, while the middle CdS shell sandwiched between the CdTe core and ZnS shell can be introduced to obviously reduce the strain on the quantum dots because the lattice parameters of CdS is situated at the intermediate-level between those of CdTe and ZnS. In comparison with CdTe/ZnS core–shell quantum dots, the as-prepared water-soluble CdTe/CdS/ZnS quantum dots in our case can exhibit high photochemical stability and photoluminescence efficiency up to 80% in an aqueous solution, which implies the promising applications in the field of biomedical labeling.

Yuan, Zhimin; Yang, Ping, E-mail: mse_yangp@ujn.edu.cn

2013-07-15T23:59:59.000Z

498

Using quantum dots to tag subsurface damage in lapped and polished glass samples  

SciTech Connect (OSTI)

Grinding, lapping, and polishing are finishing processes used to achieve critical surface parameters in a variety of precision optical and electronic components. As these processes remove material from the surface through mechanical and chemical interactions, they may induce a damaged layer of cracks, voids, and stressed material below the surface. This subsurface damage (SSD) can degrade the performance of a final product by creating optical aberrations due to diffraction, premature failure in oscillating components, and a reduction in the laser induced damage threshold of high energy optics. As these defects lie beneath the surface, they are difficult to detect, and while many methods are available to detect SSD, they can have notable limitations regarding sample size and type, preparation time, or can be destructive in nature. The authors tested a nondestructive method for assessing SSD that consisted of tagging the abrasive slurries used in lapping and polishing with quantum dots (nano-sized fluorescent particles). Subsequent detection of fluorescence on the processed surface is hypothesized to indicate SSD. Quantum dots that were introduced to glass surfaces during the lapping process were retained through subsequent polishing and cleaning processes. The quantum dots were successfully imaged by both wide field and confocal fluorescence microscopy techniques. The detected fluorescence highlighted features that were not observable with optical or interferometric microscopy. Atomic force microscopy and additional confocal microscope analysis indicate that the dots are firmly embedded in the surface but do not appear to travel deep into fractures beneath the surface. Etching of the samples exhibiting fluorescence confirmed that SSD existed. SSD-free samples exposed to quantum dots did not retain the dots in their surfaces, even when polished in the presence of quantum dots.

Williams, Wesley B.; Mullany, Brigid A.; Parker, Wesley C.; Moyer, Patrick J.; Randles, Mark H.

2009-09-20T23:59:59.000Z

499

Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT  

E-Print Network [OSTI]

Transportation Systems, Inc., Sandia National Laboratories, Distributed Utility Associates, the Electric Power Borneo, Thomas Hund and Stan Atcitty Distributed Utility Associates: Jim Eyer The Electric Power Research Gravely Office Manager Energy Systems Research Office Laurie ten Hope Deputy Director RESEARCH

500

PROPERTIES OF UMBRAL DOTS FROM STRAY LIGHT CORRECTED HINODE FILTERGRAMS  

SciTech Connect (OSTI)

High-resolution blue continuum filtergrams from Hinode are employed to study the umbral fine structure of a regular unipolar sunspot. The removal of scattered light from the images increases the rms contrast by a factor of 1.45 on average. Improvement in image contrast renders identification of short filamentary structures resembling penumbrae that are well separated from the umbra-penumbra boundary and comprise bright filaments/grains flanking dark filaments. Such fine structures were recently detected from ground-based telescopes and have now been observed with Hinode. A multi-level tracking algorithm was used to identify umbral dots (UDs) in both the uncorrected and corrected images and to track them in time. The distribution of the values describing the photometric and geometric properties of UDs is more easily affected by the presence of stray light while it is less severe in the case of kinematic properties. Statistically, UDs exhibit a peak intensity, effective diameter, lifetime, horizontal speed, and a trajectory length of 0.29I{sub QS}, 272 km, 8.4 minutes, 0.45 km s{sup -1}, and 221 km, respectively. The 2 hr 20 minute time sequence depicts several locations where UDs tend to appear and disappear repeatedly with various time intervals. The correction for scattered light in the Hinode filtergrams facilitates photometry of umbral fine structure, which can be related to results obtained from larger telescopes and numerical simulations.

Louis, Rohan E.; Mathew, Shibu K.; Bayanna, A. Raja [Udaipur Solar Observatory, Physical Research Laboratory, Dewali, Badi Road, Udaipur, Rajasthan 313004 (India); Rubio, Luis R. Bellot [Instituto de Astrofisica de Andalucia (CSIC), Apartado de Correos 3004, 18080 Granada (Spain); Ichimoto, Kiyoshi [Kwasan and Hida Observatories, Kyoto University, Yamashina-ku, Kyoto 607-8417 (Japan); Ravindra, B., E-mail: eugene@prl.res.in [Indian Institute of Astrophysics, II Block, Koramangla, Bangalore 560034 (India)

2012-06-20T23:59:59.000Z