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1

Ho-Ling Hwang - Research Staff - Center for Transportation Analysis  

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

Support Systems Motor Fuel Consumption Models National Intermodal Bottlenecks Evaluation Tool (IBET) Temporary Losses of Highway Capacity Study (TLC) Estimating International...

2

Gi Hwang  

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

Weber. "Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells." Electrochimica Acta 95 (2013): 29-37. Hwang, Gi Suk, Dilworth Y. Parkinson,...

3

SLAC National Accelerator Laboratory - Harold Hwang Wins Top...  

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

to give commemorative lectures at major universities, academies and high schools across Korea. Hwang is an expert in creating complex oxide materials with extraordinary electronic...

4

THE FEDERAL HIGHWAY ADMINISTRATION GASOHOL CONSUMPTION ESTIMATION MODEL  

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

10 10 THE FEDERAL HIGHWAY ADMINISTRATION GASOHOL CONSUMPTION ESTIMATION MODEL August 2003 Ho-Ling Hwang Lorena F. Truett Stacy C. Davis DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.fedworld.gov Web site http://www.ntis.gov/support/ordernowabout.htm Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange

5

A Study of the Discrepancy Between Federal and State Measurements of On-Highway Motor Fuel Consumption  

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

TM TM -2003/171 A Study of the Discrepancy Between Federal and State Measurements of On-Highway Motor Fuel Consumption July 2003 Ho-Ling Hwang Lorena F. Truett Stacy C. Davis DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the followi ng source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.fedworld.gov Web site http://www.ntis.gov/support/ordernowabout.htm Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange

6

Hwang-050312 - Argonne National Laboratories, Materials Sicence Division  

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

Hwang-050312 Hwang-050312 MATERIALS SCIENCE COLLOQUIUM SPEAKER: Prof. Harold Y. Hwang Stanford University and SLAC National Accelerator Laboratory TITLE: "Emergent Phenomena at Oxide Interfaces" DATE: Thursday, May 3, 2012 TIME: 11:00 a.m. PLACE: Building 212 / A-157 HOST: TBA Refreshments will be served at 10:45 a.m. ABSTRACT: Complex oxides are fascinating systems which host a vast array of unique phenomena, such as high temperature (and unconventional) superconductivity, 'colossal' magnetoresistance, all forms of magnetism and ferroelectricity, as well as (quantum) phase transitions and couplings between these states. In recent years, there has been a mini-revolution in the ability to grow thin film heterostructures of these materials with atomic precision. With this level of control, the electrostatic boundary

7

[Cover page, Margins: Left 1 in  

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

32 32 Supply Chain-Based Solution to Prevent Fuel Tax Evasion: Proof of Concept Final Report November 2011 Prepared by Gary Capps Mary Beth Lascurain Oscar Franzese Duncan Earl David West Timothy McIntyre Shih-Miao Chin Ho-Ling Hwang Raynella Connatser Samuel Lewis ORNL/TM-2011/132 Energy and Transportation Science Division SUPPLY CHAIN-BASED SOLUTION TO PREVENT FUEL TAX EVASION: PROOF OF CONCEPT FINAL REPORT Gary Capps Mary Beth Lascurain Oscar Franzese Duncan Earl David West Timothy McIntyre Shih-Miao Chin Ho-Ling Hwang Raynella Connatser Samuel Lewis Date Published: November 2011 Prepared by OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831-6283 managed by UT-BATTELLE, LLC for the U.S. DEPARTMENT OF ENERGY

8

NIST Jeeseong Hwang  

Science Conference Proceedings (OSTI)

... serving on a steering committee of the IEEE-Nanotechnology Conference in 2010, a program committee of the annual SPIE BiOS convention since ...

2013-04-01T23:59:59.000Z

9

OFF-HIGHWAY GASOLINE CONSUMPTION ESTIMATION MODELS USED IN THE FEDERAL HIGHWAY ADMINISTRATION ATTRIBUTION AND PROCESS  

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

222 222 Center for Transportation Analysis Energy and Transportation Science Division OFF-HIGHWAY GASOLINE CONSUMPTION ESTIMATION MODELS USED IN THE FEDERAL HIGHWAY ADMINISTRATION ATTRIBUTION AND PROCESS 2008 Updates Ho-Ling Hwang, Ph.D. Stacy Davis Date Published: December 2009 Prepared by OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831-6283 managed by UT-BATTELLE, LLC for the U.S. DEPARTMENT OF ENERGY under contract DE-AC05-00OR22725 iii TABLE OF CONTENTS LIST OF FIGURES AND TABLES....................................................................................v LIST OF ACRONYMS .................................................................................................... vii ABSTRACT ....................................................................................................................... ix

10

Research Staff - Center for Transportation Analysis  

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

Research Staff Research Staff CTA Staff David E. Smith Center Director [CV/Bio] Alphabetic List Debbie Bain P.T. Jones [CV/Bio] Ingrid Busch [CV/Bio] Keith Kahl [CV/Bio] Gary Capps [CV/Bio] Tim LaClair [CV/Bio] Shih-Miao Chin [CV/Bio] Brandon Langley [CV/Bio] Sujit Das [CV/Bio] Jan Mou Li [CV/Bio] Diane Davidson [CV/Bio] Zhenhong Lin [CV/Bio] Stacy Davis [CV/Bio] Changzheng Liu [CV/Bio] Dean Deter [CV/Bio] Andreas Malikopoulos [CV/Bio] Susan Diegel [CV/Bio] Sheila Moore Oscar Franzese [CV/Bio] Bruce Peterson [CV/Bio] Rick Goeltz [CV/Bio] Simon Rose [CV/Bio] Steve Gordon [CV/Bio] Bo Saulsbury [CV/Bio] Mike Hilliard [CV/Bio] Mike Schultze [CV/Bio] Ho-Ling Hwang [CV/Bio] Adam Siekmann [CV/Bio]

11

Research paper Changes in hydraulic geometry of the Hwang River below the Hapcheon  

E-Print Network (OSTI)

94 to 85 cm/km from 1983 to 2003. The analysis of aerial photographs and field surveys shows Engineering, Colorado State University, Fort Collins, CO 80523, USA. Email: Pierre@engr.colostate.edu (Author series of aerial photographs taken in 1982, 1993 and 2004 showed that the non-vegetated active channel

Julien, Pierre Y.

12

Scientific ermeneutics and Fiction_____ a study of Hwang-Hai and his science fiction.  

E-Print Network (OSTI)

??After developing for a century, science fictions and movies are becoming huge culture enterprises in Europe and America. But in Taiwan, the audiences and readers… (more)

Huang, Jui-tien

2004-01-01T23:59:59.000Z

13

Transport in chemically doped graphene in the presence of adsorbed molecules E. H. Hwang, S. Adam, and S. Das Sarma  

E-Print Network (OSTI)

could be extremely high even at room temperature. The increase in graphene carrier mobility induced impurities.18 At high densities i.e., high gate voltages , one expects9 the competing effects of short Shown solid lines are the calculated graphene conductivity for both doped and undoped cases for ni =1

Adam, Shaffique

14

bis(2-pyridylmethylene)propane-1,3diamine]manganese(II) (1/2/1) In-Chul Hwang a and Kwang Ha b *  

E-Print Network (OSTI)

R factor = 0.045; wR factor = 0.116; data-to-parameter ratio = 16.6. There are three different Mn II complexes in the asymmetric unit of the title compound, [Mn(C15H16N4)(H2O)2]Br2-2{[MnBr(C15H16N4)(H2O)]Br} [MnBr2(C15H16N4)]. In the neutral complex, the Mn 2+ ion is six-coordinated in a distorted octahedral environment by four N atoms of the tetradentate ligand N,N0-bis(2-pyridylmethylene)propane-1,3-diamine (bppd) and two bromide ligands. In the two cationic complexes, the Mn 2+ ions are also six-coordinated in similar environments, but one Mn ion is coordinated by four N atoms of bppd, one Br atom and one O atom of a coordinating water molecule, whereas the other Mn ion is coordinated by four N atoms of bppd and two O atoms of water ligands. The complexes with two coordinated Br atoms or two H2O ligands are disposed about a twofold axis through Mn and C atoms with the special positions ( 1 1 2, y, 0) and (0, y,

Monoclinic C

2008-01-01T23:59:59.000Z

15

Soft x-ray absorption and photoemission spectroscopy study of superoxide KO2 J.-S. Kang,* D. H. Kim, and J. H. Hwang  

E-Print Network (OSTI)

Soft x-ray absorption and photoemission spectroscopy study of superoxide KO2 J.-S. Kang,* D. H. Kim of superoxide KO2 was investigated by employing soft x-ray absorption spectros- copy XAS and core cooling, O2 - molecular bond axes seem to tilt to have a lower crystal monoclinic symme- try. By lowering

Min, Byung Il

16

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image © 150 DPI Image © 300 DPI Image ©. Title: Nanotechnology; Biotechnology/Health; Nanocrystals; Hwang. ...

17

Sociology of a stove  

SciTech Connect

A brief review of the acceptance and use made of the Lorena cooking stove in Guatemala. The stove is designed to contain heat, conserve fuel and reduce smoke.

Shaller, D.V.

1982-01-01T23:59:59.000Z

18

ESTIMATION OF ENERGY SAVINGS RESULTING FROM THE BESTPRACTICES...  

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

27 ESTIMATION OF ENERGY SAVINGS RESULTING FROM THE BESTPRACTICES PROGRAM, FISCAL YEAR 2002 September 2003 Lorena F. Truett Michaela A. Martin Bruce E. Tonn DOCUMENT AVAILABILITY...

19

Metrology of fluorescent nanocrystals for the standards in ...  

Science Conference Proceedings (OSTI)

Page 1. Quantitative Molecular Sensors and Imaging Techniques for Diagnostic Detection of Infectious Diseases Jeeseong Hwang jch@nist.gov ...

2010-07-27T23:59:59.000Z

20

NIST Image Gallery: Browse: Results  

Science Conference Proceedings (OSTI)

... 2007. Thumbnail, Nanotechnology; Biotechnology/Health; Nanocrystals; Hwang, created 6/21/2004, entered 11/5/2004. ...

Note: This page contains sample records for the topic "ho-ling hwang lorena" 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

MaSST 2012  

Science Conference Proceedings (OSTI)

... How does the nondeterminism of scheduling ... memory use, parallelism, virtual machines, and cloud ... Jeehyun Hwang, North Carolina State University. ...

2013-05-22T23:59:59.000Z

22

Small Nanoparticles Bring Big Improvement to Medical ...  

Science Conference Proceedings (OSTI)

... dynamic cellular processes.”. * H. Kang, F. Tokumasu, M. Clarke, Z. Zhou, J. Tang, T. Nguyen and J. Hwang. Probing dynamic ...

2010-12-06T23:59:59.000Z

23

Monday Morning Sessions  

Science Conference Proceedings (OSTI)

... University of Wisconsin-Madison/ 1500 Eng. Drive, 53706 Madison Wl, on leave from FAENQUIL-DEMAR/ Polo Urbo-lnd. s/n-12600-000, Lorena, SP, Brazil

24

Copper Electrorefining  

Science Conference Proceedings (OSTI)

Mar 12, 2012 ... Program Organizers: Shijie Wang, Rio Tinto Kennecott Utah Copper; J. E. Dutrizac, CANMET; Michael Free, University of Utah; J. Y. Hwang, ...

25

Filter-Analyzer Neutron Spectrometer (FANS)  

Science Conference Proceedings (OSTI)

... J. Hwang, "Probing the Unusual Proton and Anion Mobility of LiBH ... Analysis of the Inelastic Neutron Scattering Spectra of Electron Donor-Acceptor ...

26

Structures and Mechanical Properties IV  

Science Conference Proceedings (OSTI)

Mar 7, 2013... Francois Payen1; Nayomi Plaza1; Jinwoo Hwang1; Eren Kalay2; Matt Kramer2 ; 1University of Wisconsin, Madison; 2Ames Laboratory

28

A Passive Film Formed on Alloy 600 as a Steam Generator Tubing ...  

Science Conference Proceedings (OSTI)

Sep 16, 2007 ... A Passive Film Formed on Alloy 600 as a Steam Generator Tubing Material by Dong-Jin Kim, Hyuk Chul Kwon, Seong Sik Hwang and Hong ...

29

TRUCK ROLL STABILITY DATA COLLECTION AND ANALYSIS  

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

16 TRUCK ROLL STABILITY DATA COLLECTION AND ANALYSIS S. S. Stevens, Principal Investigator S. M. Chin K. A. Hake H. L. Hwang J. P. Rollow L. F. Truett July 2001 Prepared for the...

30

at-meeting technical program as a .pdf file  

Science Conference Proceedings (OSTI)

Jun 15, 1998 ... GROWTH: NONG M. HWANG1; Sung B. Lee1; Chan H. Han1; Duk Y. Yoon1 ..... triple junctions, known as the Herring Relations or Young's Equation. .... SHOWS AN f -1 DEPENDENCE: MARK ANDREW MIODOWNIK1;.

31

THE POLYTECHNIC REPORTER The Voice of the Student Body of Polytechnic Institute of NYU Thursday, April 15, 2010  

E-Print Network (OSTI)

SHIH-YING HWANG Pietro PM Iannetta Kamal M Ibrahim Roberto Iglesias-Prieto Sonja Ihle Pelle K Mike Westerman Rob J Whelan Michael G Whitlock Richard Whittington Jeanette Whitton Chris Wilcock Jerry

Gupta, Nikhil

32

SLAC National Accelerator Laboratory - American Physical Society...  

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

said. But Friend also characterizes him as "a wonderful colleague." Recalling a recent power outage, she said Hwang stepped right in: "He did a great job. He's willing to help...

33

Kyle Clark  

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

He, Gi Suk Hwang, Zulima Martin, Kyle Clark, Adam Z. Weber, and Nana Zhao. "Bridge to Fuel Cell Molecular Catalysis: 3D Non-Platinum Group Metal Catalyst in MEAs." ECS...

34

Publications  

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

Weber. "Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells." Electrochimica Acta 95 (2013): 29-37. 2011 Hwang, Gi Suk, Massoud Kaviany,...

35

Publications  

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

Weber. "Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells." Electrochimica Acta 95 (2013): 29-37. Hwang, Gi Suk, Dilworth Y. Parkinson,...

36

John Kerr  

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

2012 Zhu, Xiaobing, John B. Kerr, Qinggang He, Gi Suk Hwang, Zulima Martin, Kyle Clark, Adam Z. Weber, and Nana Zhao. "Bridge to Fuel Cell Molecular Catalysis: 3D...

37

Residential Sector End-Use Forecasting with EPRI-REEPS 2.1: Summary Input Assumptions and Results  

E-Print Network (OSTI)

Richard E. Brown, James W. Hanford, Alan H . Sanstad, andFrancis X . , James W. Hanford, Richard E. Brown, Alan H.place for these end-uses (Hanford et al. 1994, Hwang et al.

Koomey, Jonathan G.

2010-01-01T23:59:59.000Z

38

ARM - Publications: Science Team Meeting Documents  

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

Development of a Solar Blind Micropulse Raman Lidar for Boundary Layer Water Vapor Measurements Whiteman, D.N., Mathur, S., Nam, M., Hwang, I.H., and Prasad, C.R., National...

39

Fuel Used for Off-Road Recreation: A Reassessment of the Fuel Use Model  

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

Used for Off-Road Recreation: Used for Off-Road Recreation: A Reassessment of the Fuel Use Model Stacy C. Davis Lorena F. Truett Patricia S. Hu ORNL/TM-1999/100 Fuel Used for Off-Road Recreation: A Reassessment of the Fuel Use Model Stacy C. Davis Lorena F. Truett Patricia S. Hu July 1999 Prepared for the Office of Highway Information Management Federal Highway Administration U.S. Department of Transportation Washington, DC 20590 Prepared by the Statistics and Data Analysis Program Center for Transportation Analysis Oak Ridge National Laboratory Oak Ridge, TN 37831-6073 managed by Lockheed Martin Energy Research Corporation for the U.S. Department of Energy under Contract No. DE-AC05-96OR22464 Fuel Used for Off-Road Recreation: A Reassessment of the Fuel Use Model - iii - TABLE OF CONTENTS LIST OF ACRONYMS AND ABBREVIATIONS

40

The Small Business Conference Small Businesses Don't Want to Miss |  

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

The Small Business Conference Small Businesses Don't Want to Miss The Small Business Conference Small Businesses Don't Want to Miss The Small Business Conference Small Businesses Don't Want to Miss December 14, 2010 - 3:53pm Addthis Bill Valdez Bill Valdez Principal Deputy Director Alice Hwang has a lot on her plate. As the CEO and CFO of Advanced Technologies and Laboratories International, Inc. (ATL), a 150 employee technical and management consulting firm located in Germantown, Maryland, Ms. Hwang oversees her company's budget, manages projects and technical activities, and directs the financial, accounting, human resources, and IT infrastructure needed to keep the company running and growing. As a small business owner, Ms. Hwang is accustomed to finding creative solutions to address multiple challenges. The small businesses and the

Note: This page contains sample records for the topic "ho-ling hwang lorena" 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

Wind Sea and Swell Separation of 1D Wave Spectrum by a Spectrum Integration Method  

Science Conference Proceedings (OSTI)

In an earlier paper by Wang and Hwang, a wave steepness method was introduced to separate the wind sea and swell of the 1D wave spectrum without relying on external information, such as the wind speed. Later, the method was found to produce the ...

Paul A. Hwang; Francisco J. Ocampo-Torres; Héctor García-Nava

2012-01-01T23:59:59.000Z

42

Threat Modeling: Herdict: A distributed model for threats online  

Science Conference Proceedings (OSTI)

It can be difficult for users to know what effect a piece of software is to have on their computers. Herdict, a nascent project in distributed software, will use end users' computers to gain an understanding of how software affects them. Tim Hwang, a ...

Tim Hwang

2007-08-01T23:59:59.000Z

43

Annual Report Center for Nanophysics and Advanced Materials  

E-Print Network (OSTI)

in uncovering the unique electronic properties of graphene, which is a remarkable new material consisting. "Flexible Electronics, NanoCenter Industrial Workshop (Samsung)," August, 2007. "Graphene is all surface Function, Screening, and Plasmons in Two-Dimensional Graphene, E.H. Hwang and S. Das Sarma, Phys. Rev. B 75

Lathrop, Daniel P.

44

1:30PM, EE1+ Interface Roughness Broadening of Intersubband ...  

Science Conference Proceedings (OSTI)

Growth of InGaAsP on InP DFB Laser Gratings by Solid Source Molecular Beam Epitaxy: W.-Y. HWANG, J.N. Baillargeon, A.Y. Cho, S.N.G. Chu, P.F. Jr. Sciortino

45

Aerogel waveplates Pradeep Bhupathi,1,*  

E-Print Network (OSTI)

Aerogel waveplates Pradeep Bhupathi,1,* Jungseek Hwang,2, Rodica M. Martin,1 Jackson Blankstein,3% porosity silica aerogel samples under various degrees of uniaxial strain. Uniaxially compressed aerogels demonstrates that uniaxially strained high porosity aerogels can be used as tunable waveplates in a broad

Tanner, David B.

46

Chemical and Biological studies of Nakiterpiosin and Nakiterpiosinone Shuanhu Gao, Qiaoling Wang, Lily Jun-Shen Huang, Lawrence Lum and Chuo Chen*  

E-Print Network (OSTI)

. Clark, R. Stein, L. Dick, D. Hwang, A. L. Goldberg, Cell 1994, 78, 761 ± 771. [2] A. Craiu, M. Gaczynska. A. Cruickshank, L. R. Dick, L. Grenier, J. M. Klunder, Y.-T. Ma, L. Plamondon, R. L. Stein, BioorgCormack, W. Baumeister, L. Grenier, C. Moomaw, L. Plamondon, B. Pramanik, C. Slaughter, F. Soucy, R. Stein, F

Chen, Chuo

47

AN ANALYSIS OF THE IMPACT OF SPORT UTILITY VEHICLES IN THE UNITED STATES  

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

7 7 AN ANALYSIS OF THE IMPACT OF SPORT UTILITY VEHICLES IN THE UNITED STATES Stacy C. Davis Lorena F. Truett August 2000 Prepared for the Office of Transportation Technologies U.S. Department of Energy Prepared by the OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831-6073 managed by UT-BATTELLE, LLC for the U.S. DEPARTMENT OF ENERGY under Contract No. DE-AC05-00OR22725 iii An Analysis of SUV Impacts TABLE OF CONTENTS LIST OF TABLES AND FIGURES ............................................................................... iv ABSTRACT.................................................................................................................... v 1 INTRODUCTION......................................................................................................1

48

An Analysis of the Impact of Sport Utility Vehicles in the United States  

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

Analysis of the Impact of Sport Utility Vehicles in the United States Analysis of the Impact of Sport Utility Vehicles in the United States Word Count: 7,493 Stacy C. Davis Oak Ridge National Laboratory P.O. Box 2008, Bldg. 3156, MS-6073 Oak Ridge, TN 37831-6073 Phone: 865-574-5957 Fax: 865-574-3851 Email: davissc@ornl.gov Lorena F. Truett Oak Ridge National Laboratory P.O. Box 2008, Bldg. 4500N, MS-6207 Oak Ridge, TN 37831-6207 Phone: 865-574-4225 Fax: 865-574-3895 Email: truettlf@ornl.gov Stacy C. Davis and Lorena F. Truett 1 ABSTRACT During the 1990s, sport utility vehicles (SUVs) became the fastest growing segment of the auto industry. In 1999, SUV sales reached almost 19% of the total light vehicle market and the mix of SUVs on the road was about 8.7%. Some has called this popularity a passing fad, but the continued increases in SUV sales seem to indicate a more

49

Super Cool Appliance Design Wins Student Competition | Department of Energy  

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

Cool Appliance Design Wins Student Competition Cool Appliance Design Wins Student Competition Super Cool Appliance Design Wins Student Competition August 23, 2012 - 2:44pm Addthis The winners of the Max Tech and Beyond competition -- a team of University of Maryland students -- designed and built a prototype for a wall unit air conditioner that showed more than 30 percent energy savings when tested in a lab. | Photo courtesy of Yunho Hwang, University of Maryland. The winners of the Max Tech and Beyond competition -- a team of University of Maryland students -- designed and built a prototype for a wall unit air conditioner that showed more than 30 percent energy savings when tested in a lab. | Photo courtesy of Yunho Hwang, University of Maryland. Rebecca Matulka Rebecca Matulka Digital Communications Specialist, Office of Public Affairs

50

Parallel evolution of conserved non-coding elements that target a common set of developmental regulatory genes from worms to humans  

E-Print Network (OSTI)

PHA- 4. Dev Biol 2004, 266(2):388-398. 4. Wenick AS, Hobert O: Genomic cis-regulatory architecture and trans-acting regulators of a single interneuron-specific gene battery in C. elegans. Dev Cell 2004, 6(6):757-770. 5. Hwang SB, Lee J: Neuron cell... Genefinder coding_exon * Genefinder exon * history CDS history coding_exon * history exon * history Transcript history Pseudogene Pseudogene exon * Pseudogene Pseudogene inverted inverted_repeat RepeatMasker repeat...

Vavouri, Tanya; Walter, Klaudia; Gilks, Walter R; Lehner, Ben; Elgar, Greg

2007-02-02T23:59:59.000Z

51

Slide 1  

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

Accelerating Electric Vehicle Deployment Accelerating Electric Vehicle Deployment Opportunities for US-China Joint Initiative Roland J. Hwang Transportation Program Director Natural Resources Defense Council US-China Electric Vehicles Forum Beijing, China September 30, 2009 rhwang@nrdc.org, 415-875-6100 2 Slide The Natural Resources Defense Council * National Environmental Non Governmental Organization (NGO) founded in 1970 * 350 Lawyers, Scientists and other professionals * 1.2 million members and activists * 6 offices: New York, D.C., San Francisco, Los Angeles, Chicago and Beijing * Beijing Office founded in 1996 and focuses on energy (including

52

SSRL HEADLINES - December 2011  

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

6 - December 2011 6 - December 2011 __________________________________________________________________________ Contents of this Issue: From the Director - Outreach and Support Efforts Science Highlight - Manganese-II Oxidation: A Biotic and Abiotic Process Science Highlight - Characterization of Iron Diazene Complexes in Two Oxidation States Biological SAXS Symposium - A Tribute to Dr. Hiro Tsuruta Awards - Prof. Harold Hwang Named American Physical Society Fellow Announcements - Shipping, Lightsources.org Survey, SSRL at the Exploratorium, NUFO Profile - Postdoc Eric Verploegen Energized by Experiences, Mentoring In the News - Metallurgy, Earth's Core, Nitrogenase __________________________________________________________________________ 1. From the Director: Outreach and Support Efforts

53

Elucidation of Hydrogen Interaction Mechanisms with Metal-Doped Carbon Nanostructures - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

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

6 6 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Ragaiy Zidan (Primary Contact), Joseph A.Teprovich Jr., Douglas A Knight, Robert Lascola, Lucile C. Teague Savannah River National Laboratory Building 999-2W, Aiken, SC 29808 Phone: (803) 646-8876 Email: ragaiy.zidan@srnl.doe.gov Collaborators: * Prof. Puru Jena - Department of Physics - Virginia Commonwealth University * Prof. Mark Conradi - Department of Physics - Washington University of St. Louis * Prof. Sonjong Hwang - Chemistry and Chemical Engineering Division - California Institute of Technology

54

Which nets are being used: factors associated with mosquito net use in Amhara, Oromia and Southern Nations, Nationalities and Peoples' Regions of Ethiopia  

E-Print Network (OSTI)

-17]. The knowledge of even how to hang a net cor- rectly, or the materials needed to do so, may be lacking [18]. Factors that have been associated with net use include age, educational level attained, wealth, urban/ rural location, seasonality and weather[19... randomized controlled trial in western Kenya. Am J Trop Med Hyg 2003, 68:137-141. 25. Hwang J, Graves PM, Jima D, Reithinger R, Kachur SP: Knowledge of malaria and its association with malaria-related behaviors–results from the Malaria Indicator Survey...

Ngondi, Jeremiah; Graves, Patricia M; Gebre, Teshome; Mosher, Aryc W; Shargie, Estifanos B; Emerson, Paul M; Richards, Frank O Jr; Ethiopia Malaria Indicator Survey Working Group

2011-04-17T23:59:59.000Z

55

Online Resources  

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

Online Resources Online Resources       General Information Discovering New Physics - Fermilab: where physicists unravel the mysteries of the universe Electromagnetic Simulation: Charged Particle Motion in E/M Field (by Fu-Kwun Hwang, National Taiwan Normal University) Fermilabyrinth - Online versions of exhibits at the Lederman Science Center Fermilab Virtual Tour - Photos of accelerators and detectors with figure captions International Particle Physics Outreach Group (from CERN) Fermilab Homepage - Links to general information, experiments and projects (Fermilab at Work), particle physics (inquiring minds), resources for students (education) and more High-Energy Physics Acronyms - (from Fermilab) Particle Physics - a list of links from the American Physical Society)

56

Publications  

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

3 results: 3 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Rangachary Mukundan [Clear All Filters] 2013 Hwang, Gi Suk, Hyoungchul Kim, Roger Lujan, Rangachary Mukundan, Dusan Spernjak, Rodney L. Borup, Massoud Kaviany, Moo Hwan Kim, and Adam Z. Weber. "Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells." Electrochimica Acta 95 (2013): 29-37. 2012 Hussey, Daniel S., Dusan Spernjak, Adam Z. Weber, Rangachary Mukundan, Joseph Fairweather, Eric L. Brosha, John Davey, Jacob S. Spendelow, David L. Jacobson, and Rodney L. Borup. "Accurate measurement of the through-plane water content of proton-exchange membranes using neutron radiography." Journal of Applied Physics 112, no. 10 (2012): 104906.

57

Photon Science : SLAC National Accelerator Laboratory  

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Photon Science Photon Science Directorate | Science Highlights | Publications | SLAC Faculty Affairs | Org Chart Photon Science Faculty Arthur I. Bienenstock * Britt Hedman Anders Nilsson Gordon E. Brown, Jr. Keith O. Hodgson Jens Nørskov Axel T. Brunger Norbert Holtkamp R. Paul Phizackerley * Herman Winick * Philip Bucksbaum Zhirong Huang Piero A. Pianetta Bob Byer Harold Y. Hwang Srinivas Raghu Bruce Clemens Kent Irwin David A. Reis Yi Cui Chi-Chang Kao Zhi-Xun Shen Thomas Devereaux Ingolf Lindau * Edward I. Solomon Sebastian Doniach Aaron Lindenberg Joachim Stöhr Kelly Gaffney Wendy Mao Soichi Wakatsuki John Galayda Todd J. Martinez William Weis (Chair) Jerry Hastings Nicholas Melosh Helmut Wiedemann * *Emeritus Visiting/Consulting Faculty Faculty Affairs Office Particle Physics and Astrophysics Faculty

58

UNIRIB Publications: 2007 Bibliography  

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

7 Bibliography 7 Bibliography These citations provide bibliographical information about articles published by University Radioactive Ion Beam (UNIRIB) consortium staff in 2007. Articles in Scientific Journals Alpha Decay of ¹⁰⁹I and Its Implications for the Proton Decay of ¹⁰⁵Sb and the Astrophysical Rapid Proton-Capture Process, C. Mazzocchi, R.K. Grzywacz, S.N. Liddick, K.P. Rykaczewski, H. Schatz, J.C. Batchelder, C.R. Bingham, C.J. Gross, J.H. Hamilton, J.K. Hwang, S. Ilyushkin, A. Korgul, W. Krolas, K. Li, R.D. Page, D. Simpson and J.A. Winger, Phys. Rev. Lett. 98, 212501 (2007) Conferences/Meetings Development of a High Resolution Isobar Separator for Study of Exotic Decays, A. Piechaczek, V. Shchepunov , H.K. Carter, J.C. Batchelder, E.F. Zganjar, S.N. Liddick, H. Wollnik, Y. Hu, B.O. Griffith, Proceedings from

59

Microsoft Word - 34164475-file00.docx  

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

Running Head Running Head Cell Wall Architecture in Zinnia elegans Tracheary Elements Corresponding Author Michael P. Thelen Physical and Life Sciences Directorate Lawrence Livermore National Laboratory, L-452 PO Box 808 Livermore, CA 94550 Office: (925) 422-6547 Fax: (925) 422-2282 Email: mthelen@llnl.gov Journal Research Area Cell Biology Plant Physiology Preview. Published on July 6, 2010, as DOI:10.1104/pp.110.155242 Copyright 2010 by the American Society of Plant Biologists 2 Imaging Cell Wall Architecture in Single Zinnia elegans Tracheary Elements* Catherine I. Lacayo 1 , Alexander J. Malkin 1 , Hoi-Ying N. Holman 2 , Liang Chen 2 , Shi-You Ding 3, 4 , Mona S. Hwang 1 , and Michael P. Thelen 1, 5, § 1 Physical & Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA;

60

Colloquium 2010 - Argonne National Laboratories, Materials Sicence Division  

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

0 0 Materials Science 2010 Colloquium Archive 21-January-2010 Prof. Cheol Seong Hwang, Seol National University Identification and formation mechanism of conducting nano-filaments in TiO2 resistive switching thin film 28-January-2010 Dr. Haifeng Ding, Nanjing University 11-February-2010 Dr. John Schlueter, Materials Science Division Molecular Architectures for Control of Electron Spin and Its Transport, 16-April-2010 Prof. Albrecht Jander, Oregon State University Nanostructured Magentic Materails for Inductors 29-April-2010 Prof. Aldo Romero, CINVESTAV-Unidad Queretaro, Mexico 06-May-2010 Dr. Alex Zayak, UC Berkeley/Molecular Foundry, LBNL 20-May-2010 Dr. Matthew J. Highland, Materials Science Division 27-May-2010 Dr. Mark Stiles, National Institute of Standards and Technology

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61

Microsoft Word - 2012 Abstract Book FINAL.docx  

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

Cover images courtesy of: Hussein Aluie, T-5 Steven Anton, INST-OFF and AET-1 Anirban Chaudhuri, MPA-11 Jonathan Engle, C-IIAC Edward Holby, MST-6 and MPA-11 Yoontae Hwang and Jennie Schei, MPA-CINT and P-21 Binh-Minh Nguyen, MPA-CINT Katherine Lovejoy, MPA-MC Sarah Sewell, B-8 Blake Sturtevant, MPA-11 Xiaodong Wen, T-1 John Yeager, WX-9 i LANL Postdoc Research Day Table of Contents Page ACCELERATOR OPERATIONS AND TECHNOLOGY DIVISION AOT---ABS Accelerator a nd B eam S cience Kolski, Jeffrey "Diagnostic" Pulse for Single---Particle---Like Beam Position Measurements 1 during Accumulation/Production Mode in the Los Alamos Proton Storage Ring Pang, Xiaoying High Performance Beam Dynamics Simulator for the LANSCE Linear 2 Accelerator BIOSCIENCE DIVISION B---7 Biosecurity

62

Publications  

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

degradation [Clear All Filters] degradation [Clear All Filters] 2013 Hwang, Gi Suk, Hyoungchul Kim, Roger Lujan, Rangachary Mukundan, Dusan Spernjak, Rodney L. Borup, Massoud Kaviany, Moo Hwan Kim, and Adam Z. Weber. "Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells." Electrochimica Acta 95 (2013): 29-37. 2007 Kerlau, Marie, Marek Marcinek, Venkat Srinivasan, and Robert Kostecki. "Reprint of "Studies of local degradation phenomena in composite cathodes for lithium-ion batteries"." Electrochimica Acta 53 (2007): 1385-1392. Kerlau, Marie, Marek Marcinek, Venkat Srinivasan, and Robert Kostecki. "Studies of local degradation phenomena in composite cathodes for lithium-ion batteries." Electrochimica Acta 52 (2007): 5422-5429

63

Publications  

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

3 results: 3 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Rodney L. Borup [Clear All Filters] 2013 Hwang, Gi Suk, Hyoungchul Kim, Roger Lujan, Rangachary Mukundan, Dusan Spernjak, Rodney L. Borup, Massoud Kaviany, Moo Hwan Kim, and Adam Z. Weber. "Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells." Electrochimica Acta 95 (2013): 29-37. 2012 Hussey, Daniel S., Dusan Spernjak, Adam Z. Weber, Rangachary Mukundan, Joseph Fairweather, Eric L. Brosha, John Davey, Jacob S. Spendelow, David L. Jacobson, and Rodney L. Borup. "Accurate measurement of the through-plane water content of proton-exchange membranes using neutron radiography." Journal of Applied Physics 112, no. 10 (2012): 104906.

64

Page not found | Department of Energy  

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

11 - 15520 of 26,764 results. 11 - 15520 of 26,764 results. Article World's Largest Solar Energy Project Heads to Mojave A California company will harness the Mojave Desert sunshine to create the world's largest solar energy system by the end of 2013. http://energy.gov/articles/world-s-largest-solar-energy-project-heads-mojave Article Industry Leaders Saving Energy Companies such as AT&T, 3M, Intel, PepsiCo and Whirlpool are participating in the Energy Department's Save Energy Now LEADER initiative, committing to reducing their energy use by 25 percent or more in 10 years. http://energy.gov/articles/industry-leaders-saving-energy Article The Small Business Conference Small Businesses Don't Want to Miss Small business owner Alice Hwang explains the benefits of the Department's Annual Small Business Conference & Expo.

65

Towards Development of a Synthesized Database of Spatial and Temporal Surface Spectral Reflectivity Over the ARM SGP CART Area  

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

Towards Development of a Synthesized Database of Towards Development of a Synthesized Database of Spatial and Temporal Surface Spectral Reflectivity Over the ARM SGP CART Area A. P. Trishchenko, Y. Luo, R. Latifovic, W. Park, J. Cihlar, and B. Hwang Canada Centre for Remote Sensing Ottawa, Ontario, Canada Z. Li and M. C. Cribb University of Maryland, College Park, Maryland Introduction Surface albedo is a key variable determining the disposition of solar radiation between the surface and the atmosphere. Reliable mapping of surface albedo and improved understanding of radiation interactions at the surface are required for advancing weather forecasting and climate studies. The ground-based observations are limited to a handful of locations sparsely distributed in the South Great Plains (SGP). Frequently, they represent only small-scale features of surface reflective properties and

66

Temporary Losses of Highway Capacity and Impacts on Performance: Phase 2  

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

09 09 Temporary Losses of Highway Capacity and Impacts on Performance: Phase 2 November 2004 Prepared by S. M. Chin O. Franzese D. L. Greene H. L. Hwang Oak Ridge National Laboratory Oak Ridge, Tennessee R. C. Gibson The University of Tennessee Knoxville, Tennessee DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge: Web site: http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source: National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone: 703-605-6000 (1-800-553-6847) TDD: 703-487-4639 Fax: 703-605-6900 E-mail: info@ntis.fedworld.gov

67

Atmospheric Correction of Satellite Signal in Solar Domain: Impact of Improved Molecular Spectroscopy  

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

Atmospheric Correction of Satellite Signal in Solar Atmospheric Correction of Satellite Signal in Solar Domain: Impact of Improved Molecular Spectroscopy A. P. Trishchenko Canada Centre for Remote Sensing Ottawa, Ontario, Canada B. Hwang Intermap Technologies Corp. Calgary, Canada Z. Li University of Maryland and The Earth System Science Interdisciplinary Center College Park, Maryland Introduction Atmospheric correction of satellite measurements is a major step in the retrieval of surface reflective properties. It involves removing the effect of gaseous absorption as well as correcting for the effect of an atmospheric molecular and particulate scattering. In the past few years, there has been significant advancement in our knowledge of the absorbing properties of various atmospheric radiatively active

68

Publications  

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

2 results: 2 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is Dusan Spernjak [Clear All Filters] 2013 Hwang, Gi Suk, Hyoungchul Kim, Roger Lujan, Rangachary Mukundan, Dusan Spernjak, Rodney L. Borup, Massoud Kaviany, Moo Hwan Kim, and Adam Z. Weber. "Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells." Electrochimica Acta 95 (2013): 29-37. 2012 Hussey, Daniel S., Dusan Spernjak, Adam Z. Weber, Rangachary Mukundan, Joseph Fairweather, Eric L. Brosha, John Davey, Jacob S. Spendelow, David L. Jacobson, and Rodney L. Borup. "Accurate measurement of the through-plane water content of proton-exchange membranes using neutron radiography." Journal of Applied Physics 112, no. 10 (2012): 104906

69

ESH100.1.EP.3  

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

3 3 Procedure Title Complete an Environmental Life-cycle Management Evaluation Procedure Manager HWANG, HUE-SU A. Status Active Subject Matter Expert Michael D. Nagy-Subject Matter Expert Stephanie A. Salinas-Subject Matter Expert CA, Robert C. Holland-Subject Matter Expert Applicability, Exceptions, and Consequences This corporate procedure applies to all Sandia National Laboratories (SNL) organizations, all management elements, all SNL sites, and all Members of the Workforce. The procedure applies to any member of the workforce who use or handle materials, which may potentially impact the environment, have a high-disposal cost, or are difficult to dispose of upon completion of the project (i.e., creation of SNL/NM legacy waste). Potential project activities may include, but are not limited to, destructive testing,

70

Publications  

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

19 results: 19 results: BibTex RIS RTF XML Sort by: Author Title Type [ Year (Desc) ] Filters: Author is John B. Kerr [Clear All Filters] 2012 Zhu, Xiaobing, John B. Kerr, Qinggang He, Gi Suk Hwang, Zulima Martin, Kyle Clark, Adam Z. Weber, and Nana Zhao. "Bridge to Fuel Cell Molecular Catalysis: 3D Non-Platinum Group Metal Catalyst in MEAs." ECS Transactions 45, no. 2 (2012): 143-152. 2008 Shin, Joon Ho, Pratyay Basak, John B. Kerr, and Elton J. Cairns. "Rechargeable Li/LiFePO4 Cells Using N-Methyl-N-butyl pyrrolidinium Bis(trifluoromethane sulfonyl)imide-LiTFSI Electrolyte Incorporating Polymer Additives." Electrochimica Acta 54, no. 2 (2008): 410-414. Hardwick, Laurence J., Marek Marcinek, Leanne Beer, John B. Kerr, and Robert Kostecki. "An Investigation of the effect of graphite degradation on

71

Open Source Physics  

E-Print Network (OSTI)

Open Source Physics (Brown, 2012; Christian, 2010; Esquembre, 2012; Hwang, 2010) empowers teachers and students to create and use these free tools with the associated intellectual property rights given to customise (Wee & Mak, 2009) the computer models/tools to suit their teaching and learning needs. Open Source Physics (OSP) focuses on design of computer models, such as Easy Java Simulations (EJS) and the use of video modeling and analysis (Tracker). They allow students to investigate, explore and analyse data which is either real or simulated. The OSP approach helps users overcome barriers in creating, using and scaling up meaningful ICT use in education. In Singapore, teachers and students have created or customised existing computer models to design and re-purpose EJS models to suit their context and learning needs. Tracker tools allow students to analyse different aspects of a physics phenomena to deepen their understanding of abstract physics concepts. Using Tracker, students record the motion of ob...

Wee, Loo Kang

2013-01-01T23:59:59.000Z

72

Temporary Losses of Highway Capacity and Impacts on Performance  

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

3 3 Temporary Losses of Highway Capacity and Impacts on Performance May 2002 Prepared by S. M. Chin O. Franzese D. L. Greene H. L. Hwang Oak Ridge National Laboratory Oak Ridge, Tennessee R. C. Gibson The University of Tennessee Knoxville, Tennessee DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge: Web site: http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source: National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone: 703-605-6000 (1-800-553-6847) TDD: 703-487-4639 Fax: 703-605-6900 E-mail: info@ntis.fedworld.gov

73

Role of Water States on Water Uptake and Proton Transport in Nafion using  

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Role of Water States on Water Uptake and Proton Transport in Nafion using Role of Water States on Water Uptake and Proton Transport in Nafion using Molecular Simulations and Bimodal Network Title Role of Water States on Water Uptake and Proton Transport in Nafion using Molecular Simulations and Bimodal Network Publication Type Journal Article LBNL Report Number LBNL5396E Year of Publication 2011 Authors Hwang, Gi Suk, Massoud Kaviany, Jeffrey T. Gostick, Brian L. Kienitz, Adam Z. Weber, and Moo Hwan Kim Journal Polymer Volume 52 Start Page 2584 Issue 12 Pagination 2584-2593 Date Published 05/2011 Keywords Proton conductivity, Water diffusivity, Water uptake Abstract Using molecular simulations and a bimodal-domain network, the role of water state on Nafion water uptake and water and proton transport is investigated. Although the smaller domains provide moderate transport pathways, their effectiveness remains low due to strong, resistive water molecules/domain surface interactions. The water occupancy of the larger domains yields bulk-like water, and causes the observed transition in the water uptake and significant increases in transport properties.

74

A Way to Understand the Mass Generation  

E-Print Network (OSTI)

We explain how the "maximally broken" family gauge theory may work; that is, the family gauge symmetry is respected at the Lagrangian level but broken spontaneously - also as a way to understand the mass-generation mechanism. We use the language of Hwang and Yan to write down an extended Standard Model - using renormalizable quantum field theory as the framework; to start with certain basic units together with a certain gauge group. Specifically we use the left-handed and right-handed spinors to form the basic units together with SUc(3) x SUL(2) x U(1) x SUf(3) as the gauge group. As shown in this paper, the scalar fields phi(1,2)(the standard Higgs), phi(3,1), and phi(3,2) (mainly the "project-out" neutral sector, as seen in the U-gauge), with the first family index and the second SUL(2) index, would do the job - that is, to make certain that all family particles are (very) massive and the phenomena of three generations, including neutrino oscillations, are there, and nothing more

W-Y. Pauchy Hwang

2013-01-28T23:59:59.000Z

75

Bridge to Fuel Cell Molecular Catalysis: 3D Non-Platinum Group Metal  

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

Bridge to Fuel Cell Molecular Catalysis: 3D Non-Platinum Group Metal Bridge to Fuel Cell Molecular Catalysis: 3D Non-Platinum Group Metal Catalyst in MEAs Title Bridge to Fuel Cell Molecular Catalysis: 3D Non-Platinum Group Metal Catalyst in MEAs Publication Type Journal Article Year of Publication 2012 Authors Zhu, Xiaobing, John B. Kerr, Qinggang He, Gi Suk Hwang, Zulima Martin, Kyle Clark, Adam Z. Weber, and Nana Zhao Journal ECS Transactions Volume 45 Issue 2 Pagination 143 - 152 Date Published 04/2012 ISSN 1938-6737 Abstract Transition metal porphyrin complexes have been mounted in a three dimensional homogenous distribution inside the ionomer of catalyst layers in MEAs to achieve competitive fuel cell catalysis activity. The effect of electrode components including ionomer, carbon, catalyst, and mediator, and ionomer film thickness, is investigated in fuel cell molecular catalysis system. Membrane electrode assembly (MEA) durability testing has been conducted. SEM and TEM techniques are employed to investigate molecular catalysis electrode micro- and nano- structure and morphology. To date, surprisingly, the best fuel cell performance, i.e. 1280 mA/cm2 of maximum/short-circuit current density is achieved, approaching that of Pt-based electrode, indicating higher turnover frequencies than Pt although with poorer voltages.

76

Phase-change-related degradation of catalyst layers in  

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

Phase-change-related degradation of catalyst layers in Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells Title Phase-change-related degradation of catalyst layers in proton-exchange-membrane fuel cells Publication Type Journal Article Year of Publication 2013 Authors Hwang, Gi Suk, Hyoungchul Kim, Roger Lujan, Rangachary Mukundan, Dusan Spernjak, Rodney L. Borup, Massoud Kaviany, Moo Hwan Kim, and Adam Z. Weber Journal Electrochimica Acta Volume 95 Pagination 29 - 37 Date Published 4/2013 ISSN 00134686 Keywords degradation, Environmental scanning electron microscope (ESEM), Freeze/thaw cycle, Membrane electrode assembly (MEA), Nanostructured thin film (NSTF), Pt/C dispersion Abstract Understanding and optimizing water and thermal management in the catalyst layer of proton-exchange-membrane fuel cells is crucial for performance and durability improvements. This is especially the case at low temperatures, where liquid water and even ice may exist. In this article, the durability of a traditional Pt/C dispersed and a nanostructure thin film (NSTF) membrane-electrode assembly (MEA) are examined under wet/dry and freeze/thaw cycles using both in situ and ex situ experiments. Multiple isothermal cold starts result in a performance degradation for the dispersed MEA, while no such a degradation is found in the NSTF. The results are consistent with stand-alone MEA tests, wherein the dispersed catalyst layer results in an exponential increase in the number and size of cracks until it delaminates from the membrane due to the impact of the freeze/thaw process within the catalyst-layer pores. The NSTF catalyst layer shows minimal crack generation without delamination since the ice forms on top of the layer. The results are useful for understanding degradation due to phase-change containing cycles.

77

Secret color images sharing schemes based on XOR operation  

E-Print Network (OSTI)

s paper presents two new constructi ons for the secret colori mages shari ng schemes .Onei s a (n, n) th eshold scheme, whi ch can be const ucted based on XOR ope ati on. The othe i s a (2, n) th eshold scheme, whi ch can be const ucted by usi ng AND and XOR ope ati ons. The two schemes have no pi xel expansi on, and the ti me complexi ty fo const ucti ng sha ed i mages i s O(k 1 n), excludi ng the ti me needed fo gene ati ng n di sti nct andom mati ces (he e k si ze of the sharedi mage). The reconstructed i mages can be obtai nedi n the two schemes by usi ng the XOR operati on alone. The relati vedi fferences of the two schemes are 1 and 1/2, respecti vely. The ti me complexi ty of the recoveredi magesi s O(k 1 n) and O(2k 1 ), especti vely. The two schemes also povi de pe fect sec ecy. Keywo ds: Sec et shai ng scheme; Vi sual c yptog aphy; Vi sual sec et shai ng scheme; XOR ope ati on; Pe fect sec ecy 1. Int oduction Afte Blakely and Shami i ndependently p oposed the (k, n) th eshold scheme [1-2], hund eds of pape s we e publi shed epo ti ng esea ch about thi s topi c. Howeve , these schemes a e only sui table fo di gi tal data such as text fi les, passwo ds, and enc ypti on / Correspondi ng author. Tel.: +86-10-62782930 E-mai l address: daoshun@mai l.tsi nghua.edu.cn decrypti on keys [3]. Compared wi thdi gi tal data such as passwords and text fi les,di gi tal i mages have a large amount of datum, and the di fference between two nei ghbori ng datum i s very small. Because of the features ofdi gi tali mages,i ti si mpracti cal to apply the tradi ti onal threshold scheme to share a secretdi gi tali magedi rectly, soi ti s veryi mportant and necessary toi nvesti gate (k, n) th eshold schemes of di gi tal i mages. In [3], the Chang and Hwang p ...

Wang Dao-Shun; Zhang Lei; Ma Ning; Huang Lian-Sheng; Bei Ji

2005-01-01T23:59:59.000Z

78

Hot electron dynamics in graphene  

Science Conference Proceedings (OSTI)

Graphene, a two-dimensional (2D) honeycomb structure allotrope of carbon atoms, has a long history since the invention of the pencil [Petroski (1989)] and the linear dispersion band structure proposed by Wallace [Wal]; however, only after Novoselov et al. successively isolated graphene from graphite [Novoselov et al. (2004)], it has been studied intensively during the recent years. It draws so much attentions not only because of its potential application in future electronic devices but also because of its fundamental properties: its quasiparticles are governed by the two-dimensional Dirac equation, and exhibit a variety of phenomena such as the anomalous integer quantum Hall effect (IQHE) [Novoselov et al. (2005)] measured experimentally, a minimal conductivity at vanishing carrier concentration [Neto et al. (2009)], Kondo effect with magnetic element doping [Hentschel and Guinea (2007)], Klein tunneling in p-n junctions [Cheianov and Fal’ko (2006), Beenakker (2008)], Zitterbewegung [Katsnelson (2006)], and Schwinger pair production [Schwinger (1951); Dora and Moessner (2010)]. Although both electron-phonon coupling and photoconductivity in graphene also draws great attention [Yan et al. (2007); Satou et al. (2008); Hwang and Sarma (2008); Vasko and Ryzhii (2008); Mishchenko (2009)], the nonequilibrium behavior based on the combination of electronphonon coupling and Schwinger pair production is an intrinsic graphene property that has not been investigated. Our motivation for studying clean graphene at low temperature is based on the following effect: for a fixed electric field, below a sufficiently low temperature linear eletric transport breaks down and nonlinear transport dominates. The criteria of the strength of this field [Fritz et al. (2008)] is eE = T2/~vF (1.1) For T >?eE~vF the system is in linear transport regime while for T

Ling, Meng-Cheieh

2011-10-20T23:59:59.000Z