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1

Changzheng Liu - Research Staff - Center for Transportation Analysis  

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

(T) 865.946.1306 (F) 865.946.1541 liuc2@ornl.gov Specialty Research Areas: Modeling, Optimization and Simulation Energy and Environmental Policy Analysis Data, Statistical...

2

Bobby Liu  

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

Storage Systems Group Storage Systems Group Technology Integration Group User Services Group Org Chart NERSC History NERSC Stakeholders NERSC Usage Demographics Careers Visitor Info Web Policies Home » About » Staff » PetaScale Post-docs » Bobby Liu Bobby Liu bobby.jpg WangYi "Bobby" Liu , Ph.D. Postdoctoral Fellow, CSE Petscale Initiative, National Energy Research Scientific Computing Center BobbyLiu@lbl.gov Phone: (510) 486-6378 , Fax: (510) 486-4316 Lawrence Berkeley National Laboratory 1 Cyclotron Rd MS943-256 Berkeley, CA 94720 Biographical Sketch Originally from China, Liu completed his undergraduate degree in computational math at Peking University. He then moved to California to pursue a doctorate in mathematics at the University of California, Los Angeles. Liu will be working with the ALE-AMR code to add surface tension.

3

Ping Liu  

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

Ping Liu Ping Liu Chemist Chemistry Department Building 555 Brookhaven National Laboratory P.O. Box 5000 Upton, NY 11973-5000 Phone: (631) 344-5970 FAX: (631) 344-5815 e-mail Catalysis: Reactivity and Structure Curriculum Vitae B.S.(Phys) Jilin University, P. R. China (June,1994) M.S.(Phys) Jilin University, P. R. China (June, 1997) Ph.D.(Phys) Jilin University, P. R. China (March, 2000) Assistant Professor, Technical University of Denmark, Denmark (May, 2000 - April, 2002) Research Associate, Brookhaven National Laboratory, USA (May, 2002 - 2005) Assistant Chemist, Brookhaven National Laboratory, USA (2005 - 2007) Associate Chemist, Brookhaven National Laboratory, USA (2007 - 2010) Chemist, Brookhaven National Laboratory, USA (2010 - present) Research interests Computational studies in heterogeneous catalysis and electro-catalysis: theoretical description of nanostructures, supported nanostructures, surfaces and their catalytic applications in petroleum refining of conventional fuel, the production, conversion and use of non-conventional fuels, such as hydrogen and alcohols, in fuel cell. Electronic structure calculations and kinetic modeling are employed.

4

Gao Liu  

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

Honghe, Gao Liu, Xiangyun Song, Paul L. Ridgway, Shidi Xun, and Vincent S. Battaglia. "An Optimization of Electrode Energy and Power Density through of Variations in Inactive...

5

Yuzi Liu  

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

Nano-structure Characterization Nano-structure Characterization 1. Tu T. Truong, Yuzi Liu, Yang Ren , Lynn Trahey , and Yugang Sun, Morphological and crystalline evolution of nanostructured MnO2 and its application in Lithium-air batterie, ACS Nano 6, 8067 (2012) 2. Yuzi Liu, Daniel K, Schreiber, Amanda K, Petford-Long, Kai-Zhong Gao, Three- dimensional characterization of near-field transducers by electron tomography, Materials Characterization 72, 104-110 (2012). 3. Yugang Sun, Yang Ren, Yuzi Liu, Jianguo Wen, John S. Okasinski , Dean J. Miller, Ambient-stable tetragonal phase in silver nanostructure, Nature Communications 3, 971 (2012). 4. Mengchun Pan, Yuzi Liu, Guoren Bai, Seungbum Hong, Vinayak P. Dravid, and Amanda K. Petford-Long, Structure-property relationships in self-assembled

6

Junjie Liu  

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Junjie Liu Junjie Liu Assoc. Professor School of Environmental Science and Technology Tianjin University, China jjliu@tju.edu.cn This speaker was a visiting speaker who delivered a talk or talks on the date(s) shown at the links below. This speaker is not otherwise associated with Lawrence Berkeley National Laboratory, unless specifically identified as a Berkeley Lab staff member. Junjie Liu is an associate professor in School of Environmental Science and Technology, Tianjin University, China. He received his Ph.D. in Engineering Thermal Physics from Tianjin University and was a visiting scholar in Building Technology Group, Massachusetts Institute of Technology, from 1998 to 1999. He is the Committee Member of China Contamination Control Society (CCCS), Member of Chinese Association of Refrigeration and General

7

Yangang Liu | BNL  

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

Yangang Liu Yangang Liu Senior Scientist Liu is a Senior Scientist and the lead of the FASTER project. His scientific interests have been centering on atmospheric particle systems - aerosols, clouds and precipitation -, associated processes and interactions with Earth's climate. Research spans over a wide spectrum of topics, including aerosol/cloud physics, turbulence, light scattering, radiative transfer, remote sensing, and climate (change). Current research concentrates on development and evaluation of cloud-related parameterizations for models of various scales (from large eddy simulations to cloud-resolving models to numerical weather production models to climate models), and on the effects of aerosols on climate and climate change. Research activities combine development, integration and application of

8

liu-98.pdf  

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

for Altocumulus Clouds S. Liu and S. K. Krueger Department of Meteorology University of Utah Salt Lake City, Utah Introduction Altocumulus (Ac) clouds are predominately water...

9

Abstract for Hang Liu  

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

Hang Liu Department of Physics & Astronomy, Ohio University Three-Dimensional Faddeev Computation of Nuclear Three-Body System Traditionally employed computational methods for...

10

liu-99.PDF  

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

Calibration of the Passive Cavity Aerosol Spectrometer Calibration of the Passive Cavity Aerosol Spectrometer Probe, Estimation of Refractive Index, and Closure of Light-Scattering Coefficients Y. Liu and P. H. Daum Brookhaven National Laboratory Environmental Chemistry Division Upton, New York Introduction Optical counters such as the Passive Cavity Aerosol Spectrometer Probe (PCASP) (PMS, Inc., Boulder, Colorado) are often calibrated with latex particles having a refractive index m = 1.588. Because refractive indices of ambient aerosols are often less than 1.588, the diameters measured by optical counters will be smaller than the real diameters. This underestimation of particle sizes will in turn cause an underestimation of calculated light-scattering coefficients. Such undersizing is a function of particle

11

BNL | Chang-Jun Liu  

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

Chang-Jun Liu Chang-Jun Liu Research Interests Our research interests center on understanding the biosynthesis of plant phenylpropanoids, the molecular mechanisms underlying their metabolic regulation, as well as the biogenesis of cell wall lignocelluloses. Phenylpropanoids represent a large family of secondary metabolites. Their biosyntheses in terrestrial plants lead to the formation of a variety of phenolics and polyphenolics with diverse biological activities. For example, as a cell wall component, lignin imparts structural integrity to plant vasculature for water conductance and plant strength; as signaling molecules or phytoalexins, flavonoids and isoflavonoids modulate plant-environmental interactions or defense against phytopathogen infection; as cross-linker, phenolic esters bound to the cell wall

12

ORISE: Faculty Research Experiences - Dr. Thomas Liu  

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Thomas Liu Thomas Liu Professor and student team develops flexible, free alternative to proprietary data analytics software Dr. Thomas Liu and Monty Bains Dr. Thomas Liu and Monty Bains research free web-based data analysis and visualization application as an alternative to common fee-based software. They are participating in the U.S. Department of Homeland Security's Summer Research Team Program for Minority Serving Institutions. The program is administered by the Oak Ridge Institute for Science and Education. Photo courtesy of Tamra Carpenter, Rutgers University. Click image to enlarge. Fifteen years ago people could not imagine the capabilities they would soon have through the Internet and supporting programs. The evolution of web technology moves at such a fast pace that most people focus on keeping pace

13

Repository Synchronization in the OAI Framework Xiaoming Liu  

E-Print Network (OSTI)

Repository Synchronization in the OAI Framework Xiaoming Liu Research Library Los Alamos Research Laboratory Los Alamos, NM, 87544 liu x@lanl.gov Kurt Maly Mohammad Zubair Michael L. Nelson Computer Science

Nelson, Michael L.

14

Entropy flux relation for viscoelastic bodies I-Shih Liu (liu@im.ufrj.br)  

E-Print Network (OSTI)

be symmetrized. We shall write the gradient after being symmetrized in components simply as q C for 1 2 q C + q and its thermodynamic consequences exploited following the M¨uller-Liu procedure in which supply governed by the balance laws of mass, linear momentum and energy, + div x = 0, ¨x - div T = b, + div

Liu, I-Shih

15

Liu-082913 - Argonne National Laboratories, Materials Sicence Division  

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

Liu-082913 Liu-082913 MATERIALS SCIENCE COLLOQUIUM SPEAKER: Yaohua Liu Materials Science Division, ANL TITLE: Interface Magnetism in Heteroepitaxial Complex Oxide Films DATE: Thursday, August 29, 2013 TIME: 11:00 a.m. PLACE: Building 212 / A-157 HOST: Ray Osborn Refreshments will be served at 10:45 a.m. ABSTRACT: Complex oxide materials host many interesting collective phenomena in condensed matter physics, such as high-temperature superconductivity, various forms of magnetism and ferroelectricity, as well as phase competitions between these states. Recently, it has become possible to create heteroepitaxial complex oxide films with atomic precision, and such structures are of keen interest because modified bonding at the interfaces can give rise to fundamentally new phenomena and

16

P2P Streaming Capacity Sudipta Sengupta, Shao Liu, Minghua Chen, Mung Chiang, Jin Li, and Philip A. Chou  

E-Print Network (OSTI)

1 P2P Streaming Capacity Sudipta Sengupta, Shao Liu, Minghua Chen·, Mung Chiang, Jin Li, and Philip

Chiang, Mung

17

Excess Specific Heat in Evaporated Amorphous Silicon D. R. Queen,1,* X. Liu,2  

E-Print Network (OSTI)

] and molecular dynamics simulations [38] both associate an increase in the vibrational density of states in a. Revaz, B. L. Zink, and F. Hellman, Thermochim. Acta 432, 158 (2005). [23] X. Liu and H. V. Lo

Hellman, Frances

18

Eliza Liu Leader Electronics Inc. 4FL, No.3, Lane 45, Pao Hsin Rd.  

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

Eliza Liu Eliza Liu Leader Electronics Inc. 4FL, No.3, Lane 45, Pao Hsin Rd. Hsin Tein, Taipei, (23 1) Taiwan, R.O.C Dear Ms. Liu: The attached notice advises you of the Department of Energy's (DOE) determination that certain products manufactured by Leader Electronics Inc. (L-E-I) do not comply with applicable energy conservation standards in the United States. The notice also advises you of your legal obligations. This determination stems from the certification reports filed by L-E-I pursuant to 10 C.F.R. § 430.62 (a)(4)(ix) regarding the performance of external power supplies manufactured by L-E-I. Violations of the applicable energy efficiency standards may be subject to civil penalties. Separate from this notice, DOE may issue a notice of civil penalty for such penalties as

19

Conducting Polymer Nanotubes toward Supercapacitor Ran Liu and Sang Bok Lee*  

E-Print Network (OSTI)

Conducting Polymer Nanotubes toward Supercapacitor Ran Liu and Sang Bok Lee* Capacitive properties density, power density values of the supercapacitors. Under the same charge- discharge current densities (5mA/cm2) and equal scan rate of cyclic voltammogram (CV, 100mV/s), nanotube supercapacitors

Rubloff, Gary W.

20

China's Internet: Topology Mapping and Geolocating Ye Tian, Ratan Dey, Yong Liu, Keith W. Ross  

E-Print Network (OSTI)

China's Internet: Topology Mapping and Geolocating Ye Tian, Ratan Dey§, Yong Liu§, Keith W. Ross§ Anhui Key Lab of High Performance Computing, Univ. of Science and Technology of China, Hefei, Anhui 230026, China § Polytechnic Institute of New York University, Brooklyn, NY 11201, USA Email: yetian

Ross, Keith W.

Note: This page contains sample records for the topic "modeling changzheng liu" 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

2 Geomagnetic dipole moment collapse by convective mixing in the core 3 Lijun Liu1  

E-Print Network (OSTI)

2 Geomagnetic dipole moment collapse by convective mixing in the core 3 Lijun Liu1 and Peter Olson2 of the geomagnetic dipole. Here we 8 determine rates of dipole moment decrease as a function of 9 magnetic Reynolds of decrease of the geomagnetic 27 dipole moment, although it is unlikely that a single mixing 28 flow event

Olson, Peter L.

22

TT Liu, BE280A, UCSD, Fall 2005 Bioengineering 280A  

E-Print Network (OSTI)

, it takes only 200 usec for echos to return. TT Liu, BE280A, UCSD, Fall 2005 PW Doppler http://www.centrus at a time. TPR = 2rmax c (e.g. 200 usec for 15 cm depth) To avoid aliasing require 1 TPR > 2fmax f-f * 1/TPR > vmaxTobs =1.4cm Tpulse = 2z c =18.8usec #12;

Liu, Thomas T.

23

TT Liu, BE280A, UCSD, Fall 2006 Bioengineering 280A  

E-Print Network (OSTI)

that for a depth of 15 cm, it takes only 200 usec for echos to return. #12;6 TT Liu, BE280A, UCSD, Fall 2006 PW For unambiguous range, one pulse at a time. TPR = 2rmax c (e.g. 200 usec for 15 cm depth) To avoid aliasing resolution : #z > vmaxTobs =1.4cm Tpulse = 2#z c =18.8usec #12;

Liu, Thomas T.

24

Zhen Liu  

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

Low Carbon and Sustainability Development of Chongqing. During his visit with the China Energy Group, he will focus his research on renewable energy, low carbon economy,...

25

Guokui Liu  

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

Conference on Dynamical Process in Excited States of Solids (2010) Co-Organizer, ACS Symposium on f-element Spectroscopy and Coordination Chemistry (2004) Co-Organizer,...

26

Gao Liu  

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

electrode binder design and synthesis, electrolyte and additives. Organic light emitting diode (OLED): Light emitting polymer design and synthesis, device assembly and...

27

Test Planning for Mixed-Signal SOCs with Wrapped Analog Cores Anuja Sehgal, Fang Liu, Sule Ozev and Krishnendu Chakrabarty  

E-Print Network (OSTI)

Test Planning for Mixed-Signal SOCs with Wrapped Analog Cores Anuja Sehgal, Fang Liu, Sule Ozev. Even though the test cost for such mixed-signal SOCs is significantly higher than that for digital SOCs, most prior research in this area has focused exclusively on digital cores. We propose a low-cost test

Paris-Sud XI, Université de

28

A Tree-Based TESLA Broadcast Authentication for Sensor Networks Donggang Liu Peng Ning Sencun Zhu Sushil Jajodia  

E-Print Network (OSTI)

A Tree-Based µTESLA Broadcast Authentication for Sensor Networks Donggang Liu Peng Ning Sencun Zhu to multiple nodes in an authenticated way. µTESLA and multi-level µTESLA have been proposed to provide of senders. Though multi-level µTESLA schemes can scale up to large sensor networks (in terms of receivers

Zhu, Sencun

29

Mesh-free simulations of shear banding in large deformation Shaofan Li, Wei Hao, Wing Kam Liu *  

E-Print Network (OSTI)

Mesh-free simulations of shear banding in large deformation Shaofan Li, Wei Hao, Wing Kam Liu Mesh-free approximation is used in numerical simulations of strain localization under large deformation. An explicit displacement based mesh-free formulation is used in both two-dimensional and three

Li, Shaofan

30

6ka_PanMonsoons , Liu et al., final revision, 09/05/2003 1 Global Monsoons in the mid-Holocene and Oceanic Feedback*  

E-Print Network (OSTI)

6ka_PanMonsoons , Liu et al., final revision, 09/05/2003 1 Global Monsoons in the mid., Madison, WI 53706; zliu3@wisc.edu #12;6ka_PanMonsoons , Liu et al., final revision, 09/05/2003 2 Abstract The response of the six major summer monsoon systems (the North American monsoon, the northern Africa monsoon

Wisconsin at Madison, University of

31

2 Solar flare signatures of the ionospheric GPS total electron content 3 J. Y. Liu,1,2  

E-Print Network (OSTI)

2 Solar flare signatures of the ionospheric GPS total electron content 3 J. Y. Liu,1,2 C. H. Lin,1, ionospheric solar flare effects on the total electron content (TEC) and 7 associated time rate of change (r. The occurrence times and 9 locations of 11 solar flares are isolated from the 1­8 A° X-ray radiations of the 10

Chen, Yuh-Ing

32

Liu Manqing: A Sino-Tibetan Adventurer and the Origin of a New Sino-Tibetan dialogue in the 1930s  

E-Print Network (OSTI)

ji, Tokyo: Gaizao she, 1939. 12 Josei tensi chibetto wo iku. Tokyo: Baishuishe, 1986; Kang Zang yaocheng, Taibei: Nantian (Yazhou minzu kaogu congkan), 1987; Guomin zhengfu nu mi shi fu Zang jishi, Peking: Minzu chubanshe (Minguo bianjiang youji... , Guomin zhengfu nu mi shi fu Zang jishi, Peking: Minzu chubanshe (Minguo bianjiang youji xindu congshu), 1998, introduction, p. 6: Liu Huaxuan, Liu Manqings father, was the secretary to the Manchu commissioner in Tibet. The British thought she...

Jagou, Fabienne

2009-01-01T23:59:59.000Z

33

ESS 2012 Peer Review - Na-ion Intercalation Electrodes for Na-ion Battery - Jun Liu, PNNL  

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

TOWARDS ROOM TEMPERATURE SODIUM BATTERIES: TOWARDS ROOM TEMPERATURE SODIUM BATTERIES: PROGRESS IN HIGH CAPACITY SODIUM ION BATTERIES JUN LIU PACIFIC NORTHWEST NATIONAL LABORATORY, RICHLAND, WA 99252 Yuyan Shao, Yuliang Cao, Lifen Xiao, Wei Wang, Jie Xiao, Vincent Sprenkle Supported by Office of Electricity Delivery and Energy Reliability (Dr. Imre Gyuk), Office of Science, US Department of Energy 2 Outline  Motivation and background  Objective  New high capacity storage mechanism for cathode  Progress in anodes  Summary and future work Significant challenges for meeting the low term low cost and reliability requirement for stationary energy storage. Distributed storage Central storage End user storage Capital cost ($/kWh) CAES Pumped Hydro Power Stationary

34

Ambient Backscatter: Wireless Communication Out of Thin Air Vincent Liu, Aaron Parks, Vamsi Talla, Shyamnath Gollakota, David Wetherall, Joshua R. Smith  

E-Print Network (OSTI)

Ambient Backscatter: Wireless Communication Out of Thin Air Vincent Liu, Aaron Parks, Vamsi Talla owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise. Request permissions from permissions@acm.org. SIGCOMM'13, August 12­16, 2013, Hong Kong, China. Copyright

Hochberg, Michael

35

Vegetation Feedbacks to Climate in the Global Monsoon Regions Michael Notaro *, Guangshan Chen, Zhengyu Liu  

E-Print Network (OSTI)

1 Vegetation Feedbacks to Climate in the Global Monsoon Regions Michael Notaro *, Guangshan across six monsoon regions with a fully coupled atmosphere-ocean-ice-land model with dynamic vegetation monsoon regions is reduced and the climatic response assessed. Consistent responses among the regions

Wisconsin at Madison, University of

36

Consumer Choice of E85: Lessons from Minnesota's Experience  

Gasoline and Diesel Fuel Update (EIA)

Light Duty Vehicle Markets & E85: Theory, Econometrics & Modeling Changzheng Liu David L. Greene Oak Ridge National Laboratory Biofuels in AEO 2013 Workshop March 20, 2013 Energy Information Administration Washington, DC The Renewable Fuels Standard 2 calls for 36 billion gallons of renewable fuel use by 2022. What role can E85 play? 0 5 10 15 20 25 30 35 40 2008 2010 2012 2014 2016 2018 2020 2022 Billions of Gallons EPA Renewable Fuels Volume Requirements Total Renewable Fuel Advanced Biofuel Cellulosic biofuel Increasing ethanol use to 36 billion gallons is a key objective of the Energy Independence and Security Act of 2007. How important will availability of E85 be to achieving that goal? S Low level ethanol blends may "max out" and E85 may have

37

Dr. Yun Liu's Openings  

Science Conference Proceedings (OSTI)

... for many applications such as gas sequestration, energy storage ... media including metal-organic frameworks (MOFs), activated carbon, porous silica ...

2011-12-05T23:59:59.000Z

38

Dr. Yun Liu's CV  

Science Conference Proceedings (OSTI)

... a perspective of integral equation theory", J. Chem ... Cycle Analysis for New Energy Conversion and ... Transactions of the American Nuclear Society 97 ...

2013-07-24T23:59:59.000Z

39

Dr. Yun Liu's Webpage  

Science Conference Proceedings (OSTI)

... Water structure and dynamics in nano-porous systems, such as fuel cell membranes. Selected publications (Last number ...

2013-07-24T23:59:59.000Z

40

Yun Liu - Research Highlights  

Science Conference Proceedings (OSTI)

... 85, 11 (2007) http://pubs.acs.org/cen/news/85/i01/8501notw8.html. ... 85, 11 (2007) http://pubs.acs.org/cen/news/85/i01/8501notw8.html. ...

2011-06-28T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Yuzhong Liu Curriculum vitae  

E-Print Network (OSTI)

of PA1/2 including metal binding properties, variable-pH titration to determine pKa of small molecules and could be a potential source of biodiesel · Seeds of Jatropha Curcas were incubated with soil

Yaghi, Omar M.

42

Modeling  

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

ALE-AMR ALE-AMR code Wangyi Liu, John Bernard, Alex Friedman, Nathan Masters, Aaron Fisher, Velemir Mlaker, Alice Koniges, David Eder June 4, 2011 Abstract In this paper we describe an implementation of a single-fluid inter- face model in the ALE-AMR code to simulate surface tension effects. The model does not require explicit information on the physical state of the two phases. The only change to the existing fluid equations is an additional term in the stress tensor. We show results of applying the model to an expanding Al droplet surrounded by an Al vapor, where additional droplets are created. 1 Introduction The Neutralized Drift Compression Experiment II (NDCX II) is an induction accelerator planned for initial commissioning in 2012. The final design calls for a 3 MeV, Li+ ion beam, delivered in a bunch with characteristic pulse duration of 1 ns, and transverse dimension of order 1 mm. The

43

ISDAC Modeling  

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

Modeling Modeling Modeling of aerosol effects on Arctic stratiform clouds: Preliminary results from the ISDAC case study (poster 13J) Mikhail Ovchinnikov, Steve Ghan, Jiwen Fan, Xiaohong Liu (PNNL), Alexei Korolev, Peter Liu (Env. Canada) Shaocheng Xie (LLNL), Hugh Morrison (NCAR), ISDAC PI's, and members of the CMWG 2 Indirect Semi-Direct Aerosol Campaign Science questions: How do properties of the arctic aerosol during April differ from those measured during the MPACE in October? To what extent do the different properties of the arctic aerosol during April produce differences in the microphysical and macrophysical properties of clouds and the surface energy balance? To what extent can cloud models and the cloud parameterizations used in climate models simulate the sensitivity of arctic clouds and

44

A Study of Persistence in the LandAtmosphere System with a Fourth-Order Analytical Model  

Science Conference Proceedings (OSTI)

In a companion paper, Y. Liu and R. Avissar analyzed the features of persistence in the landatmosphere system simulated with the National Center for Atmospheric Research Community Climate Model Version 2 coupled with the BiosphereAtmosphere ...

Yongqiang Liu; Roni Avissar

1999-08-01T23:59:59.000Z

45

Wei Liu, Student Member ASHRAE, is graduate research assistant. Zhengwei Long, PhD, is lecturer. Qingyan Chen, PhD, Fellow ASHRAE, is Changjiang Chair Professor and Vicent P. Reilly  

E-Print Network (OSTI)

Wei Liu, Student Member ASHRAE, is graduate research assistant. Zhengwei Long, PhD, is lecturer. Qingyan Chen, PhD, Fellow ASHRAE, is Changjiang Chair Professor and Vicent P. Reilly Professor loss coefficients used in their calculations (Shao et al. 1995). ASHRAE Standard 120 provides

Chen, Qingyan "Yan"

46

The Yi Liu Group - Home  

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

Research Research Group Members News Publications Contacts Home Research Group Members News Publications Contacts - A supramolecular approach to better n-type organic field effect transistors. Soon in Adv. Mater. - Electron donors, acceptors, and host-guest complexes enable supramolecular networks in action. See the trio publications on J. Am. Chem. Soc., Polym. Chem., and Chem. Eur. J. - Encaged! Not one, not two, but three. Three-fold clipping leads to triply threaded interlocked structures. Soon in Angew. Chem. Int. Ed. - Strongly interacting C3-symmetric donor-acceptor pairs made its way to Chem. Sci. - Check out our recent report on organic semi- conductors and molecular switches at Appl. Mat. Inter. and Agnew. Chem. Int. Ed. - Advances in efficient bio- orthogonal labeling - soon in Agnew. Chem.

47

Modeling of combustion noise spectrum from turbulent premixed flames  

E-Print Network (OSTI)

Modeling of combustion noise spectrum from turbulent premixed flames Y. Liu, A. P. Dowling, T. D, Nantes, France 2321 #12;Turbulent combustion processes generate sound radiation due to temporal changes, this temporal correlation and its role in the modeling of combustion noise spectrum are studied by analyzing

Paris-Sud XI, Université de

48

NACP Site-Model and Aggregated Flux Data Published  

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

Site-Model and Aggregated Flux Data Published Site-Model and Aggregated Flux Data Published The ORNL DAAC is pleased to announce the release of a data set from the North American Carbon Program (NACP): NACP Site: Terrestrial Biosphere Model and Aggregated Flux Data in Standard Format . Data set prepared by D.M. Ricciuto, K. Schaefer, P.E. Thornton, K. Davis, R.B. Cook, Shishi Liu, R. Anderson, M.A. Arain, I. Baker, J.M. Chen, M. Dietze, R. Grant, C. Izaurralde, A.K. Jain, A.W. King, C. Kucharik, Shuguang Liu, E. Lokupitiya, Y. Luo, C. Peng, B. Poulter, D. Price, W. Riley, A. Sahoo, H. Tian, C. Tonitto, and H. Verbeeck. This data set provides standardized output variables for gross primary productivity (GPP), net ecosystem exchange (NEE), leaf area index (LAI), ecosystem respiration (Re), latent heat flux (LE), and sensible heat flux (H) from 24

49

0B0B0BYun Liu  

Science Conference Proceedings (OSTI)

... or porous media, such as hydrogen storage, green-house gas capture ... Polyelectrolyte Dendrimers, J. of Physical Chemistry Letters 1, 2020 (2010). ...

2013-07-20T23:59:59.000Z

50

Prediction of Ice Crystal Number in Community Atmospheric Model (CAM3.0)  

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

Prediction of Ice Crystal Number in Community Atmospheric Model (CAM3.0) Prediction of Ice Crystal Number in Community Atmospheric Model (CAM3.0) Liu, Xiaohong Pacific Northwest National Laboratory Ghan, Steven Pacific Northwest National Laboratory Wang, M University of Michigan Penner, Joyce University of Michigan Category: Modeling A prognostic equation of ice crystal number concentrations is implemented in the Community Atmospheric Model (CAM3.0) with the aim to study the aerosol effects on climate through changing the ice cloud properties. The microphysical processes affecting the ice number concentration include ice nucleation, secondary production of crystals, and the conversion of ice to snow. For ice nucleation process, Liu and Penner (2005) parameterization of homogeneous nucleation of sulfate and heterogeneous immersion nucleation on

51

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]

52

Modeling and Simulations of Materials Processing II  

Science Conference Proceedings (OSTI)

Aug 6, 2013 ... Finite Element Analysis of Erosion for Offshore Structure: Zhigang Liu1; 1Institute of High Performance Computing Erosion wear, which arises...

53

Modeling and Simulation of Materials Behavior II  

Science Conference Proceedings (OSTI)

Aug 6, 2013... Si NW and catalytic behavior of strained graphene will be presented .... Different Oxygen Environment: Liu Yongli1; Sun Benzhe1; Qi Yang1;...

54

Modeling Tools for Solid Oxide Fuel Cell Analysis  

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

Tools for Solid Oxide Fuel Tools for Solid Oxide Fuel Cell Design and Analysis Moe A Khaleel BJ Koeppel, W Liu, K Lai, KP Recknagle, EM Ryan, EV Stephens, X Sun Pacific Northwest National Laboratory Richland, WA 99352 11 th Annual SECA Workshop Pittsburgh, PA July 27-29, 2009 1 PNNL SOFC Modeling Tools SOFC-MP Stack level model for fast analysis of co/counter-flow SOFC stack performance Detailed electrochemistry model Cell level model for the investigation of secondary reactions (degradation/contamination) mechanisms within the tri-layer Component-based design and performance modeling Contact material Interconnect Glass seal 2 SOFC-MP Stack Simulation Code Recent Accomplishments Major memory improvements of 3D model to accommodate 50-cell stacks on LINUX platform. Previously, developed a 2D (or stacked

55

U.S. Department of Energy Commercial Reference Building Models of the National Building Stock  

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

Department of Energy Department of Energy Commercial Reference Building Models of the National Building Stock Michael Deru, Kristin Field, Daniel Studer, Kyle Benne, Brent Griffith, and Paul Torcellini National Renewable Energy Laboratory Bing Liu, Mark Halverson, Dave Winiarski, and Michael Rosenberg Pacific Northwest National Laboratory Mehry Yazdanian Lawrence Berkeley National Laboratory Joe Huang Formerly of Lawrence Berkeley National Laboratory Drury Crawley Formerly of the U.S. Department of Energy Technical Report NREL/TP-5500-46861 February 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory

56

Ch 18. Electric Current Liu UCD Phy1B 2012  

E-Print Network (OSTI)

identical normal light bulbs inside a closed roomThree identical normal light bulbs inside a closed room switch controls which bulb Rule: flip the switches outside the room, determine the correspondence inside

Yoo, S. J. Ben

57

Diverse Firewall Design Alex X. Liu Mohamed G. Gouda  

E-Print Network (OSTI)

and Privacy, pages 17­31, 1999. [12] A. Condor and G. Hinton. Fault tolerant and fail-safe de- sign of candu

Liu, Alex X.

58

Student Name Advisor Abdellah-El-Hadj, Amine Feng Liu  

E-Print Network (OSTI)

mkrstic@ucsd.edu Hernandez Jason Allan Abedania Juan Lasheras jlasheras@ucsd.edu Hernandez Mary Azucena Raymond De Callafon callafon@ucsd.edu Hernandez-Ibarra David Robert Bitmead rbitmead@ucsd.edu Hinden Name Mentor Mentor Email Malcolm Dustin Lee Hidenori Murakami hmurakami@ucsd.edu Malta Ramon Keiko

Mease, Kenneth D.

59

Xingbo Liu: TMS' Energetic 2010 Early Career Faculty Fellow  

Science Conference Proceedings (OSTI)

Jan 18, 2010... he was ultimately drawn to research superalloys for jet engine turbines. ... in new areas, such as renewable energy sources and fuel cells....

60

Models of Authorship and Text-making in Early China  

E-Print Network (OSTI)

248 3.3. Esoteric Writings, Authorship, and the Liu Anmaster, and master of esoteric methods, recipes, andthe ancestor of the body of esoteric knowledge through which

Zhang, Hanmo

2012-01-01T23:59:59.000Z

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to obtain the most current and comprehensive results.


61

Models  

E-Print Network (OSTI)

A very typical statistical/econometric model assumes something like yt ? i.i.d. f (y, x, ?) (1) where f () is a parametric family known up to parameters ?. Parameter estimation: maximum likelihood ?n = arg max ? ln f (Yt, Xt, ?) (2) t What if the basic model assumptions of (1) are violated? The parametric family may not contain the true model f0(x, y) that generated the data; or the data may not be i.i.d.; etc. Misspecified

Stas Kolenikov; U Of Missouri; U Of Missouri

2007-01-01T23:59:59.000Z

62

Models of Flow-Induced Loading on Blood Cells in Laminar and ...  

Science Conference Proceedings (OSTI)

prosthetic heart valve, using the energy spectral density measured by Liu et al. ..... relative intensity of turbulence at different length scales and frequencies must

63

Forged and Specialty Steels  

Science Conference Proceedings (OSTI)

Oct 19, 2011 ... The Study on Microstructure and Thermal Fatigue Properties of HSS Rolls: Changzheng Xu1; Dale Sun1; Qiong Wu1; Hongquan Wen1; Heng...

64

DCPT v1.0 - New particle tracker for modeling transport in dual-continuum - User's Manual  

E-Print Network (OSTI)

Dual-Continuum Media User's Manual Lehua Pan, Hui Hai Liu,report serves as a user's manual of DCPT V1.0. It includes

Pan, Lehua; Liu, Hui Hai; Cushey, Mark; Bodvarsson, Gudmundur

2001-01-01T23:59:59.000Z

65

Life-Cycle Energy Use and Greenhouse Gas Emission Implicaitons of Brazilian Sugarcane Ethanol Simulated with the GREET Model  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Life-Cycle Energy Use and Greenhouse Gas Emission Implications of Life-Cycle Energy Use and Greenhouse Gas Emission Implications of Brazilian Sugarcane Ethanol Simulated with the GREET Model Michael Wang*, May Wu, Hong Huo and Jiahong Liu Center for Transportation Research, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA. *Contact author: Tel: +1 (630) 252 2819 Fax: +1 (630) 252 3443 Email: mqwang@anl.gov In International Sugar Journal 2008, Vol. 110, No. 1317 ABSTRACT By using data available in the open literature, we expanded the Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model developed by Argonne National Laboratory to include Brazilian-grown sugarcane ethanol. With the expanded GREET model, we examined the well-to-wheels (WTW) energy use and

66

Comparison of the Vertical Velocity Used to Calculate the Cloud Droplet Number Concentration in a Cloud Resolving and a Global Climate Model  

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

Comparison of the Vertical Velocity Comparison of the Vertical Velocity used to Calculate the Cloud Droplet Number Concentration in a Cloud-Resolving and a Global Climate Model H. Guo, J. E. Penner, M. Herzog, and X. Liu Department of Atmospheric, Oceanic and Space Sciences University of Michigan Ann Arbor, Michigan Introduction Anthropogenic aerosols are effective cloud condensation nuclei (CCN). The availability of CCN affects the initial cloud droplet number concentration (CDNC) and droplet size; therefore, cloud optical properties (the so-called first aerosol indirect effect). However, the estimate of CDNC from a mechanistic treatment shows significant differences from the empirical schemes mainly due to the large bias of the large-scale vertical velocity (w) (Ghan et al. 1993, 1995; Boucher and Lohmann 1995;

67

Development of epoxy-based electrets Yu-Cheng Liu Yasuhiro Aoyagi D. D. L. Chung  

E-Print Network (OSTI)

that electrically poled hard PZT can sustain appreciable stress (up to 200 MPa) without significant depoling, whereas poled soft PZT is susceptible to depoling at stresses on the order of 50 MPa. Lynch [2] performed temperature of approximately 320 °C. Both the BaTiO3 and PZT- 4D materials were thermally depoled to an iso

Chung, Deborah D.L.

68

Optical rotatory power of polymer-stabilized blue phase liquid crystals Yifan Liu,1  

E-Print Network (OSTI)

indicate that the optical rotatory power (ORP) of some nano-scale double-twist cylinders in a BPLC through the crossed polarizers. Rotating the analyzer in azimuthal direction to correct this ORP can should be taken into consideration, which is optical rotatory power (ORP).15­18 According to Meiboom

Wu, Shin-Tson

69

Edge effects in buckled thin films on elastomeric substrates C. T. Koh and Z. J. Liu  

E-Print Network (OSTI)

of High Performance Computing, 1 Science Park Road, 01-01 The Capricorn, Singapore Science Park II-Champaign, Urbana, Illinois 61801, USA C. Lu Institute of High Performance Computing, 1 Science Park Road, 01

Rogers, John A.

70

RIP: An Efficient Hybrid Repeater Insertion Scheme for Low Power Xun Liu Yuantao Peng  

E-Print Network (OSTI)

and Systems, 1990. [12] N. Hedenstierna and K. O. Jeppson. CMOS circuit speed and buffer optimization. IEEE

Paris-Sud XI, Université de

71

Introduction of the Renewable Micro-Grid Test-Bed Dr. Wenxin Liu  

E-Print Network (OSTI)

Turbine: PMSM, 3kW, 8.3A Wind Generator: PMSM, 3kW, 8.3A 3 AC/DC Converter & DC/AC Inverter Wind Wind Turbine #1 3kW, 8.3A Wind Turbine #2 3kW Wind Generator #2 3kW RS232 Communication Renewable-bed Wind Turbine Generator Simulators ES Simulator AC Load M/G Set 1 Overview of the Micro-grid Test

Johnson, Eric E.

72

Restructuring Batch View Maintenance Efficiently Bin Liu, Elke A. Rundensteiner and David Finkel  

E-Print Network (OSTI)

with existing batch algorithms. Categories and Subject Descriptors: H.2.4 [Database Management]: Systems maintenance strategies within the TxnWrap system [3]. The experiments are conducted on four Pentium III 500MHz Systems (TODS), 2004, to appear. [4] A. Gupta and I. Mumick. Maintenance of Materialized Views: Problems

73

Diverse Firewall Design Alex X. Liu, Member, IEEE, and Mohamed G. Gouda, Member, IEEE  

E-Print Network (OSTI)

and CANDU reactors have been considered. New fuels based on Thorium have been tested : Thorium assembly. Hence variable MR makes core power change, while core size remains constant. II.B.2 CANDU The CANDU-6 reactor is a heavy-water- moderated and cooled reactor using natural uranium as a fuel

Gouda, Mohamed G.

74

Liu and Spitler. Submitted to the 12th International Road Weather Conference 1  

E-Print Network (OSTI)

of the simulation tool are presented. As an application of the simulation tool, the ASHRAE guidance for required. Current guidance in the ASHRAE handbook (ASHRAE 2003) for required surface heat fluxes is based on a one snow melting system performance might compare to the ASHRAE guidance. 1 Oklahoma State University

75

EFFECT OF FUEL TYPE ON FLAME IGNITION BY TRANSIENT PLASMA Jianbang Liu1,2  

E-Print Network (OSTI)

ABSTRACT Rise and delay times of mixtures of methane, propane, n-butane, iso-butane and iso- octane mixed performance of various fuels including methane, propane, iso-butane, n-butane and iso-octane mixed with air

76

Simulator evaluation of head-mounted displays for patient monitoring D. Liu, BEng(Hons)  

E-Print Network (OSTI)

anesthesia in a METI ECSTM simulator with custom extensions6 while wearing a Microvision NomadTM HMD

Queensland, University of

77

Simulator evaluation of head-mounted displays for patient monitoring D. Liu, BEng(Hons),  

E-Print Network (OSTI)

provided anesthesia in a METI ECSTM simulator with custom extensions6 while wearing a Microvision Nomad

Queensland, University of

78

A Framework for Parallel Tree-Based Scienti c Simulations Pangfeng Liu Jan-Jan Wu  

E-Print Network (OSTI)

-body algorithms explore the idea that the eect of a cluster of particles at a distant point can be approximated

79

Water Transport Through Nafion 112 Membrane in DMFCs F. Q. Liu,b  

E-Print Network (OSTI)

. R. Narayanan, T. Valdez, W. Chun, H. Frank, A. Kindler, S. Suram- pudi, J. Kosek, C. Cropley, and A . 8. S. R. Narayanan, H. Frank, B. Jeffries-Nakamura, M. Smart, W. Chun, G. Halpert, J. Kosek, and C

80

Three-Dimensional Simulations of Liquid Feed Direct Methanol Wenpeng Liu*,a  

E-Print Network (OSTI)

. Vamos, S. Surampudi, H. Frank, G. K. Surya Prakash, M. C. Smart, R. Knieler, G. A. Olah, J. Kosek, and C

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Cross-Domain Dialogue Act Tagging Nick Webb, Ting Liu, Mark Hepple, Yorick Wilks  

E-Print Network (OSTI)

the source corpus. Visual inspection of these cues reveals that, as one might expect, there is a high de (DAs) (Bunt, 1994), also known as speech acts or dialogue moves (Power, 1979), rep- resent

82

GeoGrid: A Scalable Location Service Network Jianjun Zhang,Gong Zhang,Ling Liu  

E-Print Network (OSTI)

area with a random initial radius between 0.1 and 10 miles. The cell at the center of a hot spot has by the hot spot is decided by a formula 1 - d/r, where d is the distance of a cell to the center of the hot- ically migrating hot spots like those handled by GeoGrid, #12;more flexible and more responsive load

Liu, Ling

83

Component Assemblies and Component Runtimes Yu David Liu Ran Rinat Scott F. Smith  

E-Print Network (OSTI)

the cable analogy, cells are also designed to allow "hot-plugging", cables that may be connected invocation between connected cells, and full distributed functionality, including formation of remote cell different ways of handling parameters de- pending on inter-cell communication and intra-cell commu- nication

Smith, Scott F.

84

Generic Disposal System Modeling--Fiscal Year 2011 Progress Report  

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

12/2011 12/2011 Rev. 2 FCRD- T10-201 0-00005 FCRD Technical Integration Office (TIO) DOCUMENT NUMBER REQUEST TRANSMITTAL SHEET 1. Document Information Document Title/Description: Generic Disposal System Modeling--Fiscal Year 2011 Revision: 0 Progress Re~ort Assigned Document Number: FCRD-USED-2011-000184 Effective Start Date: 08/1112011 Document Author/Creator: D. Clayton, G. Freeze, T. Hadgu, E. Hardin, J. Lee, OR .~: J. Prouty, R. Rogers, W.M. Nutt, J. Berkholzer, H.H. Liu, L. Zheng, S. Chu Document Owner: Palmer Vaughn Date Range: Originating Organization: Sandia National Laboratories From: To: Milestone OM1 ~M2 OM3 ~M4 o Not a Milestone Milestone Number:: M21UF034101 and M41UF035102 Work Package WBS Number: FTSN11 UF0341 and FTSN11 UF0351; 1.02.08.03 Controlled Unclassified Infonnation (CUI) Type ~ None OOUO OAT o Other FCRD SYSTEM: Year: o FUEL Fuels 2011 OINTL International

85

Metal Extraction  

Science Conference Proceedings (OSTI)

A Sintering Ore Blending Optimization Model Based on 'Iron Increase and Silicon ... Acid Leaching Process of Coal Fly Ash: Kang Liu1; Jilai Xue1; Wenbo Luo1;...

86

Determination of 3-D Cloud Ice Water Contents by Combining Multiple...  

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

Determination of 3-D Cloud Ice Water Contents by Combining Multiple Data Sources from Satellite, Ground Radar, and a Numerical Model Liu, Guosheng Florida State University Seo,...

87

CESM Atmosphere Model Working Group Meeting 1 3 February 2012  

E-Print Network (OSTI)

aerosol" CAM5 configuration 9:25 Xiaohong Liu ­ Evaluating and constraining ice cloud parameterizations ­ Measurements for Guiding Ice Nucleation, PSD and Morphology Parameterizations in CAM5 11:15 Chris Bretherton Thermodynamic Phase Parameterization Based on CALIPSO Observations on Climate Simulation #12;CAM, high

88

Chukwuemeka I. Okoye Carbon Dioxide Solubility and Absorption Rate in  

E-Print Network (OSTI)

models based on chemical, kinetic, and thermodynamic aspects exist, but these are complex and difficult, L. Li, J. Liu, Modeling of homogeneous mercury speciation using detailed chemical kinetics, including kinetic modeling [2] and thermodynamic equilibrium calculations [3]. Theoretical models rely

Rochelle, Gary T.

89

Predicting Flu Trends using Twitter Data Harshavardhan Achrekar Avinash Gandhe Ross Lazarus Ssu-Hsin Yu Benyuan Liu  

E-Print Network (OSTI)

epidemics and other pandemics such as the H1N1 is of paramount im- portance for public health authorities. As diagnoses are made and reported by doctors, the system is almost entirely manual, resulting in a 1-2 weeks in aggregate ILI reports. Public health authorities need to be forewarned at the earliest time to ensure

Liu, Benyuan

90

B#: a Battery Emulator and Power Profiling Instrument Pai H. Chou, Chulsung Park, Jae Park, Kien Pham, and Jinfeng Liu  

E-Print Network (OSTI)

B#: a Battery Emulator and Power Profiling Instrument Pai H. Chou, Chulsung Park, Jae Park, Kien-sharp), a programmable power supply that emulates the behavior of a battery. It measures the current load, calls a battery simulation program to compute the voltage in real time, and controls a linear regulator to mimic

Shinozuka, Masanobu

91

TROPIC: Transactional Resource Orchestration Platform In the Cloud Changbin Liu Yun Mao Xu Chen Mary F. Fernndez  

E-Print Network (OSTI)

of in gen- erating flow summaries. Compound and stateful signatures in Ju- niper's Netscreen-IDP suite [16

Pennsylvania, University of

92

A FRAMEWORK FOR WEBCAM-BASED HAND REHABILITATION Rui Liu, Burkhard C. Wunsche, Christof Lutteroth, Patrice Delmas  

E-Print Network (OSTI)

for home-based care are rapidly increasing in importance due to spiraling health and elderly care costs. An important aspect of home-based care is exercises for rehabilitation and improving general health

Sun, Jing

93

Transverse Optical Mode in a One-Dimensional Yukawa Chain Bin Liu,* K. Avinash, and J. Goree  

E-Print Network (OSTI)

Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242, USA (Received 27 May 2003 ring [3] may be used in atomic clocks [4] or quantum computing [5]. At the atomic scale, a 1D chain can, such as chains of Au on Si(111) [7]. A 1D chain of gas atoms adsorbed in carbon nano- tubes has been produced

Goree, John

94

Performance Bounds for Peer-Assisted Live Streaming Shao Liu, Rui Zhang-Shen, Wenjie Jiang, Jennifer Rexford, Mung Chiang  

E-Print Network (OSTI)

, Jennifer Rexford, Mung Chiang Department of Electrical Engineering, and Department of Computer Science

Chiang, Mung

95

Modal Aerosol Module in CAM: Evaluation X. Liu, S. Ghan, R. Easter, R. Zaveri, X. Shi, P. Rasch (PNNL)  

E-Print Network (OSTI)

(PNNL) A. Gettelman, H. Morrison, J.-F. Lamarque, F. Vitt (NCAR) P. Cameron-Smith, C. Chuang, K. Grant

96

LED Traffic Light as a Communications Device Grantham Pang, Thomas Kwan, Chi-Ho Chan, Hugh Liu.  

E-Print Network (OSTI)

:http://www.eee.hku.hk/~gpang Abstract The visible light from an LED (light emitting diode) traffic light can be modulated and encoded on the description of an audio information system made up of high brightness, visible light emitting diodes (LEDs messages 1. Introduction Recently, high intensity light emitting diodes for traffic signals are available

Pang, Grantham

97

Monitoring with head-mounted displays in anesthesia: Simulator and clinical evaluations D. Liu BEng(Hons)  

E-Print Network (OSTI)

experiments with anesthesiologists wearing a Microvision NomadTM HMD under various simulated and clinical

Queensland, University of

98

Fischer-Tropsch Fuels from Coal and Biomass Thomas G. Kreutz, Eric D. Larson, Guangjian Liu, Robert H. Williams  

E-Print Network (OSTI)

Pyrolysis Processes. Developments in Thermochemical Biomass Conversion", Eds. Bridgwater, A.V. and BoocockHydrogen from Biomass for Urban Transportation Y. D. Yeboah (PI), K. B. Bota and Z. Wang Clark amounts of fossil-derived CO2 are released to the atmosphere. Renewable biomass is an attractive

99

Vehicle Location and Navigation Systems based on LEDs Grantham Pang, Hugh Liu, Chi-Ho Chan, Thomas Kwan  

E-Print Network (OSTI)

Traffic lights, traffic signal devices, message display boards are being replaced by Light Emitting Diodes for their discussions in meetings. REFERENCES 1. "Audio information system using light-emitting diodes", E. Yang, D. 2. "Light emitting diode dot matrix display system with audio output", G. Pang, S.W. Cheung, T. Kwan

Pang, Grantham

100

DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu, Thomas Kwan  

E-Print Network (OSTI)

of light-emitting diodes (LEDs) over incandescent lights is well-supported. This is due to their high construction of LEDs panel and the illuminance of LEDs. CONCLUSIONS In the near future, light-emitting diodes, U.S. Patent Office. 2. "Light emitting diode dot matrix display system with audio output", G. Pang

Pang, Grantham

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Generative Oversampling for Mining Imbalanced Datasets Alexander Liu, Joydeep Ghosh Member, IEEE, and Cheryl Martin Member, IEEE  

E-Print Network (OSTI)

include detecting cancerous cells, fraud detection [1] [2], keyword extraction [3], oil-spill detection [4

Ghosh, Joydeep

102

Soot microphysical effects on liquid clouds, a multi-model investigation  

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

Soot microphysical effects on liquid clouds, a multi-model investigation Soot microphysical effects on liquid clouds, a multi-model investigation Title Soot microphysical effects on liquid clouds, a multi-model investigation Publication Type Journal Article Year of Publication 2011 Authors Koch, Dorothy M., Yves Balkanski, Susanne E. Bauer, Richard C. Easter, Sylvaine Ferrachat, Steven J. Ghan, Corinna Hoose, Trond Iversen, Alf Kirkevåg, Jon E. Kristjánsson, Xiaohong Liu, Ulrike Lohmann, Surabi Menon, Johannes Quaas, Michael Schulz, Øyvind Seland, Toshihiko Takemura, and N. Yan Journal Atmospheric Chemistry and Physics Volume 11 Pagination 1051-1064 Abstract We use global models to explore the microphysical effects of carbonaceous aerosols on liquid clouds. Although absorption of solar radiation by soot warms the atmosphere, soot may cause climate cooling due to its contribution to cloud condensation nuclei (CCN) and therefore cloud brightness. Six global models conducted three soot experiments; four of the models had detailed aerosol microphysical schemes. The average cloud radiative response to biofuel soot (black and organic carbon), including both indirect and semi-direct effects, is -0.11 Wm-2, comparable in size but opposite in sign to the respective direct effect. In a more idealized fossil fuel black carbon experiment, some models calculated a positive cloud response because soot provides a deposition sink for sulfuric and nitric acids and secondary organics, decreasing nucleation and evolution of viable CCN. Biofuel soot particles were also typically assumed to be larger and more hygroscopic than for fossil fuel soot and therefore caused more negative forcing, as also found in previous studies. Diesel soot (black and organic carbon) experiments had relatively smaller cloud impacts with five of the models <±0.06 Wm-2 from clouds. The results are subject to the caveats that variability among models, and regional and interrannual variability for each model, are large. This comparison together with previously published results stresses the need to further constrain aerosol microphysical schemes. The non-linearities resulting from the competition of opposing effects on the CCN population make it difficult to extrapolate from idealized experiments to likely impacts of realistic potential emission changes.

103

Quantum Circuit Model Topological Model  

E-Print Network (OSTI)

Quantum Circuit Model Topological Model Comparison of Models Topological Quantum Computation Eric Rowell Texas A&M University October 2010 Eric Rowell Topological Quantum Computation #12;Quantum Circuit Model Topological Model Comparison of Models Outline 1 Quantum Circuit Model Gates, Circuits

Rowell, Eric C.

104

ARM - 2008 ARM Science Team Meeting  

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

and Tropical Cirrus 9:00 am - 9:20 am Xiaohong Liu: Evaluation of a New Mixed-phase Cloud Microphysics Parameterization with Single Column Model, CAPT Forecasts, and...

105

ARM - 2011 AGU Presentations Featuring ARM Data  

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

in Cold Clouds: Using SPARTICUS Measurements to Constrain Ice Nucleation Parameterization in a Global Climate Model K Zhang, X Liu, M Wang 11:05 am, M-West 3002 A22B....

106

Research Highlight  

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

Ice Nucleation Link to Aerosols for Global Models Download a printable PDF Submitter: DeMott, P. J., Colorado State University Liu, X., University of Wyoming Area of Research:...

107

Model Validation  

Science Conference Proceedings (OSTI)

...thus establishing appropriate and important benchmarks. Benchmarking can go beyond validation and also measure relative computational speed, accuracy, and breadth for available modeling approaches and implementations, providing valuable information for users to discern the best models and for modelers...

108

Modeling & Simulation  

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

Modeling & Simulation Modeling & Simulation Research into alternative forms of energy, especially energy security, is one of the major national security imperatives of this...

109

Consideration of Dynamical Effects on Parameterization of Clooud radiative Properties  

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

Consideration of Dynamical Effects on Consideration of Dynamical Effects on Parameterization of Cloud Radiative Properties P. H. Daum and Y. Liu Environmental Sciences Department Brookhaven National Laboratory Upton, New York Introduction Effective radius (r e ) (defined as the ratio of the third to the second moment of a droplet size distribution) is one of the key variables that are used for calculation of the radiative properties of liquid water clouds (Hansen and Travis 1974). The inclusion and parameterization of r e in climate models has proven to be critical for assessing global climate change (Slingo 1990, Dandin et al. 1997). It has been demonstrated empirically (Pontikis and Hicks 1992, Bower and Choularton 1992, Bower et al. 1994, Martin et al. 1994, Liu and Hallett 1997, Reid et al. 1998, Liu and Daum 2000a), as well theoretically (Liu and

110

Context: Modeling  

Science Conference Proceedings (OSTI)

... Yang, JC; Huber, ML; Boyer, CI; 1995. Modeling of Hydrogen Fluoride Formation From Flame Suppressants During Combustion.. ...

2013-05-03T23:59:59.000Z

111

Modeling Portal  

Science Conference Proceedings (OSTI)

... News And Events. 24th NIST Computer Modeling Workshop. New Quantum Computing Algorithm Could Simulate Giant Particle Accelerators. ...

2011-02-14T23:59:59.000Z

112

Numerical Modeling  

Science Conference Proceedings (OSTI)

Feb 28, 2011... or field repair, durability, weight and cost efficiency, and extreme climate. ... Cohesive zone model is implemented to investigate the interfacial...

113

PREDICTIVE MODELS  

Science Conference Proceedings (OSTI)

PREDICTIVE MODELS is a collection of five models - CFPM, CO2PM, ICPM, PFPM, and SFPM - used in the 1982-1984 National Petroleum Council study of enhanced oil recovery (EOR) potential. Each pertains to a specific EOR process designed to squeeze additional oil from aging or spent oil fields. The processes are: 1) chemical flooding; 2) carbon dioxide miscible flooding; 3) in-situ combustion; 4) polymer flooding; and 5) steamflood. CFPM, the Chemical Flood Predictive Model, models micellar (surfactant)-polymer floods in reservoirs, which have been previously waterflooded to residual oil saturation. Thus, only true tertiary floods are considered. An option allows a rough estimate of oil recovery by caustic or caustic-polymer processes. CO2PM, the Carbon Dioxide miscible flooding Predictive Model, is applicable to both secondary (mobile oil) and tertiary (residual oil) floods, and to either continuous CO2 injection or water-alternating gas processes. ICPM, the In-situ Combustion Predictive Model, computes the recovery and profitability of an in-situ combustion project from generalized performance predictive algorithms. PFPM, the Polymer Flood Predictive Model, is switch-selectable for either polymer or waterflooding, and an option allows the calculation of the incremental oil recovery and economics of polymer relative to waterflooding. SFPM, the Steamflood Predictive Model, is applicable to the steam drive process, but not to cyclic steam injection (steam soak) processes. The IBM PC/AT version includes a plotting capability to produces a graphic picture of the predictive model results.

Ray, R.M. (DOE Bartlesville Energy Technology Center, Bartlesville, OK (United States))

1988-10-01T23:59:59.000Z

114

Biosystems Modeling  

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

Biosystems Modeling Biosystems Modeling Phantoms We are a leader nationally and internationally in the development of models and methods for predicting the behavior of radionuclides and chemicals in the body, assessing the health effects of environmental hazards, and determining the exposure-dose relationships for environmental pollutants. Our work has been a key resource to the medical community in providing the basis for dose estimates in nuclear medicine. Our tools and skills are also applicable to the areas of occupational health and safety, public health and safety, radiation protection, environmental dosimetry, and battlefield effects. Our technology base includes mathematical modeling, bone dosimetry, phantom development, and neutron dosimetry. Please direct any questions concerning the Biosystems Modeling Group to:

115

OSPREY Model  

SciTech Connect

The absence of industrial scale nuclear fuel reprocessing in the U.S. has precluded the necessary driver for developing the advanced simulation capability now prevalent in so many other countries. Thus, it is essential to model complex series of unit operations to simulate, understand, and predict inherent transient behavior and feedback loops. A capability of accurately simulating the dynamic behavior of advanced fuel cycle separation processes will provide substantial cost savings and many technical benefits. The specific fuel cycle separation process discussed in this report is the off-gas treatment system. The off-gas separation consists of a series of scrubbers and adsorption beds to capture constituents of interest. Dynamic models are being developed to simulate each unit operation involved so each unit operation can be used as a stand-alone model and in series with multiple others. Currently, an adsorption model has been developed within Multi-physics Object Oriented Simulation Environment (MOOSE) developed at the Idaho National Laboratory (INL). Off-gas Separation and REcoverY (OSPREY) models the adsorption of off-gas constituents for dispersed plug flow in a packed bed under non-isothermal and non-isobaric conditions. Inputs to the model include gas, sorbent, and column properties, equilibrium and kinetic data, and inlet conditions. The simulation outputs component concentrations along the column length as a function of time from which breakthrough data is obtained. The breakthrough data can be used to determine bed capacity, which in turn can be used to size columns. It also outputs temperature along the column length as a function of time and pressure drop along the column length. Experimental data and parameters were input into the adsorption model to develop models specific for krypton adsorption. The same can be done for iodine, xenon, and tritium. The model will be validated with experimental breakthrough curves. Customers will be given access to OSPREY to used and evaluate the model.

Veronica J. Rutledge

2013-01-01T23:59:59.000Z

116

Integration of ARG-US RFID and DOE TRANSCOM* B. Craig, J.H. Lee, J. Anderson, H. Tsai, Y. Liu, and J. Shuler1  

E-Print Network (OSTI)

Administration (NNSA), it has been separately proposed that a major part of the funding to build a dedicated shock compression beamline be provided by NNSA. The magnetic field is a key fundamental parameter

Kemner, Ken

117

Photoacoustic Trace Detection of Methane Using Compact Solid-State Lasers Geng-Chiau Liang, Hon-Huei Liu, and A. H. Kung  

E-Print Network (OSTI)

such as pollution monitoring, bio- medical sensing, plant physiology and plant growth analysis, and atmospheric resonators coupled with acoustic filters. The output power of the OPO was 60 mW at the acoustic resonanceW. By combining the more powerful OPO with the more sensitive differential cell with two resonator tubes

Kung, Andy

118

Shear velocity as the function of frequency in heavy oils De-hua Han and Jiajin Liu, Rock Physics Lab, UH;  

E-Print Network (OSTI)

on an oil shale deposit. Samanta et al. (2005) extract lay- ers of material to minimize deviation between

119

The citation for this paper is: Spitler, J.D., X. Liu, S.J. Rees, C. Yavuzturk. 2005. Simulation and Optimization of Ground Source Heat  

E-Print Network (OSTI)

. Peak electrical utility demands in much of the USA are determined by air conditioning usage have also proved to have lower maintenance costs due to the absence of equipment ex- posed with lower energy consumption and potentially lower maintenance costs have proved attractive to homeown- ers

120

CLOUD-BASED SOFTWARE PLATFORM FOR DATA-DRIVEN SMART GRID MANAGEMENT Yogesh Simmhan, Saima Aman, Alok Kumbhare, Rongyang Liu, Sam Stevens, Qunzhi Zhou and  

E-Print Network (OSTI)

CLOUD-BASED SOFTWARE PLATFORM FOR DATA-DRIVEN SMART GRID MANAGEMENT Yogesh Simmhan, Saima Aman and data networks into national power grids. This Smart Grid offers deep monitoring and controls, but needs. This article focuses on Cloud technologies used in a scalable software platform for the Smart Grid Cyber

Prasanna, Viktor K.

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Modelling I  

Science Conference Proceedings (OSTI)

Mar 15, 2012 ... Current Distribution and Lorentz Field Modelling Using Cathode Designs: A ... The electrical conductivity of the cathode-block and the collector bar is so ... load, creating a very uneven current distribution within the cathode.

122

PGMA Model  

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

PGMA Model PGMA Model PM-G1-F1-012802.doc Revised January 28, 2002 Page 1 The PGMA (Policy, Guidance, Metrics, Assessments) was originally conceived as a model to provide the framework for developing the components for DOE Information Technology (IT) related policies. Its specific purpose is to drive the development of the four components and ensure a corresponding element within each component. The model components are: POLICY C A concise statement supporting the Department=s needs for quality business solutions. C Link to existing IT policy statements without redundancy. GUIDANCE C Documentation, templates, references, checklists, training, (using Web and other means) to provide implementation mechanisms and techniques for policy adherence.

123

Modelling approaches  

Science Conference Proceedings (OSTI)

Understanding and mitigating risks and threats to critical infrastructures relies heavily on the ability to construct and validate models often involving physical systems or even human intervention. This, together with the wide range of scales from critical ...

Nils Kalstad Svendsen; Stephen D. Wolthusen

2012-01-01T23:59:59.000Z

124

Batteries - Modeling  

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

Battery Modeling Over the last few decades, a broad range of battery technologies have been examined at Argonne for transportation applications. Today the focus is on lithium-ion...

125

PREDICTIVE MODELS  

SciTech Connect

PREDICTIVE MODELS is a collection of five models - CFPM, CO2PM, ICPM, PFPM, and SFPM - used in the 1982-1984 National Petroleum Council study of enhanced oil recovery (EOR) potential. Each pertains to a specific EOR process designed to squeeze additional oil from aging or spent oil fields. The processes are: 1) chemical flooding, where soap-like surfactants are injected into the reservoir to wash out the oil; 2) carbon dioxide miscible flooding, where carbon dioxide mixes with the lighter hydrocarbons making the oil easier to displace; 3) in-situ combustion, which uses the heat from burning some of the underground oil to thin the product; 4) polymer flooding, where thick, cohesive material is pumped into a reservoir to push the oil through the underground rock; and 5) steamflood, where pressurized steam is injected underground to thin the oil. CFPM, the Chemical Flood Predictive Model, models micellar (surfactant)-polymer floods in reservoirs, which have been previously waterflooded to residual oil saturation. Thus, only true tertiary floods are considered. An option allows a rough estimate of oil recovery by caustic or caustic-polymer processes. CO2PM, the Carbon Dioxide miscible flooding Predictive Model, is applicable to both secondary (mobile oil) and tertiary (residual oil) floods, and to either continuous CO2 injection or water-alternating gas processes. ICPM, the In-situ Combustion Predictive Model, computes the recovery and profitability of an in-situ combustion project from generalized performance predictive algorithms. PFPM, the Polymer Flood Predictive Model, is switch-selectable for either polymer or waterflooding, and an option allows the calculation of the incremental oil recovery and economics of polymer relative to waterflooding. SFPM, the Steamflood Predictive Model, is applicable to the steam drive process, but not to cyclic steam injection (steam soak) processes.

Ray, R.M. (DOE Bartlesville Energy Technology Technology Center, Bartlesville, OK (United States))

1986-12-01T23:59:59.000Z

126

Model replication: transformations to address model scalability  

Science Conference Proceedings (OSTI)

In model-driven engineering, it is often desirable to evaluate different design alternatives as they relate to scalability issues of the modeled system. A typical approach to address scalability is model replication, which starts by creating base models ... Keywords: domain-specific modeling, model transformation, model-driven engineering, scalability

Yuehua Lin; Jeff Gray; Jing Zhang; Steve Nordstrom; Aniruddha Gokhale; Sandeep Neema; Swapna Gokhale

2008-11-01T23:59:59.000Z

127

INCISM: Users Manual  

E-Print Network (OSTI)

AND HIGHWAYS INCISIM: USERS MANUAL June 28, 2000 Heng LiuBERKELEY INCISIM: Users Manual Heng Liu, Randolph Hall

Liu, Heng; Hall, Randolph

2000-01-01T23:59:59.000Z

128

Criticality Model  

Science Conference Proceedings (OSTI)

The ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003) presents the methodology for evaluating potential criticality situations in the monitored geologic repository. As stated in the referenced Topical Report, the detailed methodology for performing the disposal criticality analyses will be documented in model reports. Many of the models developed in support of the Topical Report differ from the definition of models as given in the Office of Civilian Radioactive Waste Management procedure AP-SIII.10Q, ''Models'', in that they are procedural, rather than mathematical. These model reports document the detailed methodology necessary to implement the approach presented in the Disposal Criticality Analysis Methodology Topical Report and provide calculations utilizing the methodology. Thus, the governing procedure for this type of report is AP-3.12Q, ''Design Calculations and Analyses''. The ''Criticality Model'' is of this latter type, providing a process evaluating the criticality potential of in-package and external configurations. The purpose of this analysis is to layout the process for calculating the criticality potential for various in-package and external configurations and to calculate lower-bound tolerance limit (LBTL) values and determine range of applicability (ROA) parameters. The LBTL calculations and the ROA determinations are performed using selected benchmark experiments that are applicable to various waste forms and various in-package and external configurations. The waste forms considered in this calculation are pressurized water reactor (PWR), boiling water reactor (BWR), Fast Flux Test Facility (FFTF), Training Research Isotope General Atomic (TRIGA), Enrico Fermi, Shippingport pressurized water reactor, Shippingport light water breeder reactor (LWBR), N-Reactor, Melt and Dilute, and Fort Saint Vrain Reactor spent nuclear fuel (SNF). The scope of this analysis is to document the criticality computational method. The criticality computational method will be used for evaluating the criticality potential of configurations of fissionable materials (in-package and external to the waste package) within the repository at Yucca Mountain, Nevada for all waste packages/waste forms. The criticality computational method is also applicable to preclosure configurations. The criticality computational method is a component of the methodology presented in ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). How the criticality computational method fits in the overall disposal criticality analysis methodology is illustrated in Figure 1 (YMP 2003, Figure 3). This calculation will not provide direct input to the total system performance assessment for license application. It is to be used as necessary to determine the criticality potential of configuration classes as determined by the configuration probability analysis of the configuration generator model (BSC 2003a).

A. Alsaed

2004-09-14T23:59:59.000Z

129

Century Model Product Available  

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

Century Model Available The ORNL DAAC announces the availability of a new model product. The model product "CENTURY: Modeling Ecosystem Responses to Climate Change, Version 4...

130

Nuclear Models  

SciTech Connect

The atomic nucleus is a typical example of a many-body problem. On the one hand, the number of nucleons (protons and neutrons) that constitute the nucleus is too large to allow for exact calculations. On the other hand, the number of constituent particles is too small for the individual nuclear excitation states to be explained by statistical methods. Another problem, particular for the atomic nucleus, is that the nucleon-nucleon (n-n) interaction is not one of the fundamental forces of Nature, and is hard to put in a single closed equation. The nucleon-nucleon interaction also behaves differently between two free nucleons (bare interaction) and between two nucleons in the nuclear medium (dressed interaction).Because of the above reasons, specific nuclear many-body models have been devised of which each one sheds light on some selected aspects of nuclear structure. Only combining the viewpoints of different models, a global insight of the atomic nucleus can be gained. In this chapter, we revise the the Nuclear Shell Model as an example of the microscopic approach, and the Collective Model as an example of the geometric approach. Finally, we study the statistical properties of nuclear spectra, basing on symmetry principles, to find out whether there is quantum chaos in the atomic nucleus. All three major approaches have been rewarded with the Nobel Prize of Physics. In the text, we will stress how each approach introduces its own series of approximations to reduce the prohibitingly large number of degrees of freedom of the full many-body problem to a smaller manageable number of effective degrees of freedom.

Fossion, Ruben [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Mexico D. F., C.P. 04510 (Mexico)

2010-09-10T23:59:59.000Z

131

Modelling osteomyelitis  

E-Print Network (OSTI)

-related Figure 2 Box plot representation of the gene expression of 82 genes corresponding to a) 48 osteomyelitis infected patients and b) 27 healthy controls). Li et al. BMC Bioinformatics 2012, 13(Suppl 14):S12 http... (2):206-215. 11. Li P, Merelli E, Paoletti N: Multiple verification in computational modeling of bone pathologies. CompMod 2011, 82-96. Li et al. BMC Bioinformatics 2012, 13(Suppl 14):S12 http://www.biomedcentral.com/bmcbioinformatics/supplements/13/S14/S12 Page...

Li, Pietro; Paoletti, Nicola; Moni, Mohammad A; Atwell, Kathryn; Merelli, Emanuela; Viceconti, Marco

2012-09-07T23:59:59.000Z

132

MODEL BASED ENTERPRISE  

Science Conference Proceedings (OSTI)

... Model 3564 STEELSHED, inc Model A-G22 HD Model 65-1 DIY Model AB344 ... 23 Bill identifies DIY Model AB344 as his choice and procures the ...

2010-12-21T23:59:59.000Z

133

Research Highlight  

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

Evaluation of a New Mixed-Phase Cloud Microphysics Parameterization with Evaluation of a New Mixed-Phase Cloud Microphysics Parameterization with SCAM, CAPT Forecasts and M-PACE Observations Download a printable PDF Submitter: Liu, X., University of Wyoming Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Liu, X, S Xie, and SJ Ghan. 2007. "Evaluation of a new mixed-Phase cloud microphysics parameterization with the NCAR single column climate model (SCAM) and ARM M-PACE observations." Geophysical Research Letters 34, L23712, doi:10.1029/2007GL031446. Xie, S, J Boyle, SA Klein, X Liu and S Ghan. 2008. "Simulations of arctic mixed-phase clouds in forecasts with CAM3 and AM2 for M-PACE." Journal of Geophysical Research, in press.

134

Generative model transformer  

Science Conference Proceedings (OSTI)

The Generative Model Transformer (GMT) project is an Open Source initiative to build a Model Driven Architecure tool that allows fully customisable Platform Independent Models, Platform Description Models, Texture Mappings, and Refinement Transformations. ... Keywords: QVT, domain-specific languages, generative model transformer (GMT), model driven architecture (MDA), model transformation, open source

Jorn Bettin; Ghica van Emde Boas

2003-10-01T23:59:59.000Z

135

Hydrogen Delivery Analysis Models  

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

model for delivery system component costs and performance: Components Model Delivery scenario model for Urban and Rural Interstate markets and demand levels (Mkt....

136

Model interoperability in building information modelling  

Science Conference Proceedings (OSTI)

The exchange of design models in the design and construction industry is evolving away from 2-dimensional computer-aided design (CAD) and paper towards semantically-rich 3-dimensional digital models. This approach, known as Building Information Modelling ... Keywords: Building Information Modelling, Interoperability

Jim Steel; Robin Drogemuller; Bianca Toth

2012-02-01T23:59:59.000Z

137

I&C Modeling in SPAR Models  

SciTech Connect

The Standardized Plant Analysis Risk (SPAR) models for the U.S. commercial nuclear power plants currently have very limited instrumentation and control (I&C) modeling [1]. Most of the I&C components in the operating plant SPAR models are related to the reactor protection system. This was identified as a finding during the industry peer review of SPAR models. While the Emergency Safeguard Features (ESF) actuation and control system was incorporated into the Peach Bottom Unit 2 SPAR model in a recent effort [2], various approaches to expend resources for detailed I&C modeling in other SPAR models are investigated.

John A. Schroeder

2012-06-01T23:59:59.000Z

138

cell probe model  

Science Conference Proceedings (OSTI)

NIST. cell probe model. (definition). Definition: A model of computation where the cost of a computation is measured by the ...

2013-05-08T23:59:59.000Z

139

2002 EIA Models Directory  

U.S. Energy Information Administration (EIA)

The Personal Computer International Nuclear Model (PCINM) is a deterministic model used by the Energy Information Administration (EIA) to project ...

140

Use Our Model  

Science Conference Proceedings (OSTI)

... Use Our ModelContact Us. *. Bookmark and Share. Use Our Model. to Translate Research into the Classroom. The paper ...

2013-01-16T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Transformer Modeling in the Common Information Model  

Science Conference Proceedings (OSTI)

The Common Information Model (CIM) International Electrotechnical Commission (IEC) 61970 model contains transformers. However, the modeling was based on the needs and requirements defined primarily by the transmission users. Because the CIM has been expanded into distribution and the distribution control center, there is a need to review the transformer model and ensure that the needs and requirements of both transmission and distribution are defined and included. This report proposes method to model tra...

2010-05-31T23:59:59.000Z

142

CALPHAD Modeling of Homogeneity Ranges  

Science Conference Proceedings (OSTI)

... Systems Page 3. Model Descriptions Stoichiometric model ? solids with fixed concentration Regular solution type model ? liquids ...

2009-05-28T23:59:59.000Z

143

BNL | Plant Sciences  

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

Plant Sciences Plant Sciences The Plant Sciences group's goal is to understand the principles underlying carbon capture, conversion, and storage in living systems; and develop the capability to model, predict and optimize these processes in plants and microorganisms. Staff Members John Shanklin Jason Candreva Jilian Fan Hui Liu Qin Liu Edward Whittle Xiaohong Yu Dax Fu Jin Chai Chang-Jun Liu Yuanheng Cai Mingyue Gou Guoyin Kai Zhaoyang Wei Huijun Yang Kewei Zhang Xuebin Zhang Jörg Schwender Jordan Hay Inga Hebbelmann Hai Shi Zhijie Sun Changcheng Xu Chengshi Yan Zhiyang Zhai Plant Sciences Contact John Shanklin, (631)344-3414 In the News No stories available Funding Agencies DOE Basic Energy Sciences Bayer CropScience The Biosciences Department is part of the Environment and Life Sciences Directorate at Brookhaven National Laboratory

144

Econometric structural models : a model selection approach.  

E-Print Network (OSTI)

??Using a model selection approach, this thesis proposes a constructive data-and-theory-combined procedure to identify model structures in the framework of a linear simultaneous equations system (more)

Chen, Pu

2002-01-01T23:59:59.000Z

145

Testing CAPM with a Large Number of Assets (Updated 28th March 2012)  

E-Print Network (OSTI)

, Wong, Carter and Kohn (2003), Ledoit and Wolf (2004), Huang, Liu, Pourahmadi, and Liu (2006), Bickel and Levina (2008), Fan, Fan and Lv (2008), and Fan, Liao and Mincheva (2012). It is also possible to employ the design-free estimator of the covariance... , as N ! 1 J#11;(D) = N#0;1=2 #2; (#28; 0TMF#28;T ) #11;^ 0D#0;1#11;^#0;N #3; p 2 + #22; 2;"qT !d N(0; 1), (25) 10 In cases where the errors of CAPM model are not weakly corrected but (semi-)strongly correlated, it can be argued that important factors...

Pesaran, M. Hashem; Yamagata, Takashi

2012-02-28T23:59:59.000Z

146

The Common Land Model  

Science Conference Proceedings (OSTI)

The Common Land Model (CLM) was developed for community use by a grassroots collaboration of scientists who have an interest in making a general land model available for public use and further development. The major model characteristics include ...

Yongjiu Dai; Xubin Zeng; Robert E. Dickinson; Ian Baker; Gordon B. Bonan; Michael G. Bosilovich; A. Scott Denning; Paul A. Dirmeyer; Paul R. Houser; Guoyue Niu; Keith W. Oleson; C. Adam Schlosser; Zong-Liang Yang

2003-08-01T23:59:59.000Z

147

Modeling of geothermal systems  

DOE Green Energy (OSTI)

During the last decade the use of numerical modeling for geothermal resource evaluation has grown significantly, and new modeling approaches have been developed. In this paper we present a summary of the present status in numerical modeling of geothermal systems, emphasizing recent developments. Different modeling approaches are described and their applicability discussed. The various modeling tasks, including natural-state, exploitation, injection, multi-component and subsidence modeling, are illustrated with geothermal field examples. 99 refs., 14 figs.

Bodvarsson, G.S.; Pruess, K.; Lippmann, M.J.

1985-03-01T23:59:59.000Z

148

Reformulated Gasoline Complex Model  

Gasoline and Diesel Fuel Update (EIA)

Refiners Switch to Reformulated Refiners Switch to Reformulated Gasoline Complex Model Contents * Summary * Introduction o Table 1. Comparison of Simple Model and Complex Model RFG Per Gallon Requirements * Statutory, Individual Refinery, and Compliance Baselines o Table 2. Statutory Baseline Fuel Compositions * Simple Model * Complex Model o Table 3. Complex Model Variables * Endnotes Related EIA Short-Term Forecast Analysis Products * RFG Simple and Complex Model Spreadsheets * Areas Particpating in the Reformulated Gasoline Program * Environmental Regulations and Changes in Petroleum Refining Operations * Oxygenate Supply/Demand Balances in the Short-Term Integrated Forecasting Model * Reformulated Gasoline Foreign Refinery Rules * Demand, Supply, and Price Outlook for Reformulated Motor Gasoline, 1995 , (Adobe

149

2002 EIA Models Directory  

U.S. Energy Information Administration (EIA)

DRI Model of the U.S. Economy. Ron Earley (202) 586-1398. World Oil Refining, Logistics, and Demand Model. Dan Butler (202) 586-9503 ...

150

Modelling II and Measurement  

Science Conference Proceedings (OSTI)

Mar 15, 2012 ... Modeling Cathode Cooling Due to Power Interruption: Marc Dupuis1; Alton ... Modeling the Mass and Energy Balance of Different Aluminium...

151

Molegro Data Modeller  

Science Conference Proceedings (OSTI)

Dec 18, 2007 ... Molegro Data Modeller is a cross-platform application for Data Mining, Data Modelling, and Data Visualization. Features at a glance:

152

ROCK PROPERTIES MODEL ANALYSIS MODEL REPORT  

SciTech Connect

The purpose of this Analysis and Model Report (AMR) is to document Rock Properties Model (RPM) 3.1 with regard to input data, model methods, assumptions, uncertainties and limitations of model results, and qualification status of the model. The report also documents the differences between the current and previous versions and validation of the model. The rock properties models are intended principally for use as input to numerical physical-process modeling, such as of ground-water flow and/or radionuclide transport. The constraints, caveats, and limitations associated with this model are discussed in the appropriate text sections that follow. This work was conducted in accordance with the following planning documents: WA-0344, ''3-D Rock Properties Modeling for FY 1998'' (SNL 1997, WA-0358), ''3-D Rock Properties Modeling for FY 1999'' (SNL 1999), and the technical development plan, Rock Properties Model Version 3.1, (CRWMS M&O 1999c). The Interim Change Notice (ICNs), ICN 02 and ICN 03, of this AMR were prepared as part of activities being conducted under the Technical Work Plan, TWP-NBS-GS-000003, ''Technical Work Plan for the Integrated Site Model, Process Model Report, Revision 01'' (CRWMS M&O 2000b). The purpose of ICN 03 is to record changes in data input status due to data qualification and verification activities. These work plans describe the scope, objectives, tasks, methodology, and implementing procedures for model construction. The constraints, caveats, and limitations associated with this model are discussed in the appropriate text sections that follow. The work scope for this activity consists of the following: (1) Conversion of the input data (laboratory measured porosity data, x-ray diffraction mineralogy, petrophysical calculations of bound water, and petrophysical calculations of porosity) for each borehole into stratigraphic coordinates; (2) Re-sampling and merging of data sets; (3) Development of geostatistical simulations of porosity; (4) Generation of derivative property models via linear coregionalization with porosity; (5) Post-processing of the simulated models to impart desired secondary geologic attributes and to create summary and uncertainty models; and (6) Conversion of the models into real-world coordinates. The conversion to real world coordinates is performed as part of the integration of the RPM into the Integrated Site Model (ISM) 3.1; this activity is not part of the current analysis. The ISM provides a consistent volumetric portrayal of the rock layers, rock properties, and mineralogy of the Yucca Mountain site and consists of three components: (1) Geologic Framework Model (GFM); (2) RPM, which is the subject of this AMR; and (3) Mineralogic Model. The interrelationship of the three components of the ISM and their interface with downstream uses are illustrated in Figure 1. Figure 2 shows the geographic boundaries of the RPM and other component models of the ISM.

Clinton Lum

2002-02-04T23:59:59.000Z

153

PREDICTIVE MODELS. Enhanced Oil Recovery Model  

SciTech Connect

PREDICTIVE MODELS is a collection of five models - CFPM, CO2PM, ICPM, PFPM, and SFPM - used in the 1982-1984 National Petroleum Council study of enhanced oil recovery (EOR) potential. Each pertains to a specific EOR process designed to squeeze additional oil from aging or spent oil fields. The processes are: 1 chemical flooding; 2 carbon dioxide miscible flooding; 3 in-situ combustion; 4 polymer flooding; and 5 steamflood. CFPM, the Chemical Flood Predictive Model, models micellar (surfactant)-polymer floods in reservoirs, which have been previously waterflooded to residual oil saturation. Thus, only true tertiary floods are considered. An option allows a rough estimate of oil recovery by caustic or caustic-polymer processes. CO2PM, the Carbon Dioxide miscible flooding Predictive Model, is applicable to both secondary (mobile oil) and tertiary (residual oil) floods, and to either continuous CO2 injection or water-alternating gas processes. ICPM, the In-situ Combustion Predictive Model, computes the recovery and profitability of an in-situ combustion project from generalized performance predictive algorithms. PFPM, the Polymer Flood Predictive Model, is switch-selectable for either polymer or waterflooding, and an option allows the calculation of the incremental oil recovery and economics of polymer relative to waterflooding. SFPM, the Steamflood Predictive Model, is applicable to the steam drive process, but not to cyclic steam injection (steam soak) processes. The IBM PC/AT version includes a plotting capability to produces a graphic picture of the predictive model results.

Ray, R.M. [DOE Bartlesville Energy Technology Center, Bartlesville, OK (United States)

1992-02-26T23:59:59.000Z

154

Surveying navigation modelling approaches  

Science Conference Proceedings (OSTI)

Recently, a number of authors who work on web application modelling have paid attention to the ideas regarding separation of concerns that underlie aspect-orientation, as well as some ideas that come from the model-driven development community. ... Keywords: internet, navigation modelling, separation of concerns, web application modelling, web engineering, web navigation

Antonia M. Reina-Quintero

2009-01-01T23:59:59.000Z

155

OSHWPP model programs guide  

SciTech Connect

Descriptions of model occupational health and safety programs implemented at DOE facilities are presented.

NONE

1995-06-01T23:59:59.000Z

156

Simplifying environmental model reuse  

Science Conference Proceedings (OSTI)

The environmental modelling community has developed many models with varying levels of complexity and functionality. Many of these have overlapping problem domains, have very similar 'science' and yet are not compatible with each other. The modelling ... Keywords: APSIM, Component, Framework independent, Interoperability, Model, Simulation

Dean P. Holzworth; Neil I. Huth; Peter G. de Voil

2010-02-01T23:59:59.000Z

157

Model Theory and Quantum  

E-Print Network (OSTI)

Model Theory and Quantum Groups Sonia L'Innocente Model Theory and Quantum Groups Sonia L'Innocente (University of Mons) Model Theory and Quantum Groups 1 / 40 #12;Model Theory and Quantum Groups Sonia L quantum plane, submitted. This work is inspired by Ivo Herzog's paper: The pseudo-finite dimensional

Mons-Hainaut, Université de

158

Control physical models  

Science Conference Proceedings (OSTI)

This paper describes design of model physical model of rectification column. Physical model is appointed as a demonstration system control for distillation by means of control system SIMATIC PCS7 from company SIEMENS. The SIMATIC PCS7 Process control ... Keywords: description, distillation, physical model, process control system

Tom Dvo?k; Jan Blek

2005-03-01T23:59:59.000Z

159

Model Products Available  

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

Available Available Archiving environmental data products has become recognized as a vital research practice: it improves our ability to reproduce results and perform additional analyses while saving the cost of redundant data collection activities. The same rationale applies to archiving numerical models. Archived models will provide the methodological detail of numerical modeling studies to recreate published modeling results, enabling the synthesis of results across modeling studies and the investigation of new hypotheses. In addition, archived models will allow determination of uncertainties for comparison with results from other models in assessment / policy studies. The model source code will also allow others to see how models treat individual processes. We are creating a two-tiered archive for numerical models. The first tier

160

Building Energy Modeling Library  

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

Modeling (BEM) Modeling (BEM) Library TDM - Amir Roth Ellen Franconi Rocky Mountain Institute Efranconi@rmi.org 303-567-8609 April 2, 2013 Photo by : Dennis Schroeder, NREL 23250 2 | Building Technologies Office eere.energy.gov Project Overview Building Energy Modeling (BEM) Library * Define and develop a best-practices BEM knowledge repository to improve modeling consistency and address training gaps * Raise energy modeling industry "techniques" to the same

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Model interoperability via Model Driven Development  

Science Conference Proceedings (OSTI)

Among the factors that contribute to the inherent complexity of the software development process is the gap between the design and the formal analysis domains. Software design is often considered a human oriented task while the analysis phase draws on ... Keywords: Model Driven Development, Model interoperability, Petri Nets, Software development, UML

Mohamed A. Ameedeen; Behzad Bordbar; Rachid Anane

2011-03-01T23:59:59.000Z

162

Outline Introduction Literature Review Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel Market  

E-Print Network (OSTI)

billion annual sales, 40% of domestic primary energy (Energy Information Administration (2000, 2005 An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu and Anna Nagurney§ Isenberg School of Management University

Nagurney, Anna

163

Introduction Literature Review Integrated Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

primary energy (Energy Information Administration (2000, 2005)) Deregulation Wholesale market Bilateral Conclusions An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu and Anna Nagurney§ Penn State University Hazleton § John F

Nagurney, Anna

164

Introduction Literature Review Integrated Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

of net assets, $220 billion annual sales, 40% of domestic primary energy (Energy Information Conclusions An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Forthcoming in Naval Research Logistics Zugang Liu and Anna Nagurney

Nagurney, Anna

165

Introduction Literature Review Integrated Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

of net assets, $220 billion annual sales, 40% of domestic primary energy (Energy Information Conclusions An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu and Anna Nagurney§ Isenberg School of Management University

Nagurney, Anna

166

Outline Introduction Literature Review Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel  

E-Print Network (OSTI)

primary energy (Energy Information Administration (2000, 2005)) Deregulation Wholesale market Bilateral An Integrated Electric Power Supply Chain and Fuel Market Network Framework: Theoretical Modeling with Empirical Analysis for New England Zugang Liu Isenberg School of Management University of Massachusetts at Amherst

Nagurney, Anna

167

A CELL-BASED MANY-TO-ONE DYNAMIC SYSTEM OPTIMAL MODELAND ITS  

E-Print Network (OSTI)

FOR EMERGENCY EVACUATION Henry X. Liu, Department of Civil Engineering, University of Minnesota, Twin Cities Xiaozheng He, Department of Civil Engineering, University of Minnesota, Twin Cities Jeff X. Ban, Institute, specific planning models have been developed for various evacuation scenarios, including nuclear plant

Ban, Xuegang "Jeff"

168

20. Beck, S. L. & Ruff, L. J. Rupture process of the great 1963 Kuril Islands earthquake sequence: asperity interaction and multiple event rupture. J. Geophys. Res. 92, 1412314138 (1987).  

E-Print Network (OSTI)

-wave Runup Models (eds Yeh, H., Liu, P. & Synolakis, C.) 25­42 (World Scientific, Singapore, 1996). 29.satake@aist.go.jp). .............................................................. The hydrodynamics of water strider locomotion David L. Hu1 , Brian Chan2 & John W. M. Bush1 1 Department ............................................................................................................................................................................. Water striders Gerridae are insects of characteristic length 1 cm and weight 10 dynes that reside

Bush, John W.M.

169

Atmos. Chem. Phys., 12, 1067910692, 2012 www.atmos-chem-phys.net/12/10679/2012/  

E-Print Network (OSTI)

and mixed-phase clouds to the ice nuclei spectra in McRAS-AC: single column model simulations R. Morales ­ Published: 16 November 2012 Abstract. The salient features of mixed-phase and ice clouds in a GCM cloud scheme are examined using the ice nucle- ation parameterizations of Liu and Penner (LP) and Barahona

Meskhidze, Nicholas

170

Mixing and internal dynamics of droplets impacting and coalescing on a solid surface  

E-Print Network (OSTI)

.M. Hutchings, Phys. Fluids, 21, 072102 (2009). [34] D.A. Wolf-Gladrow, Lattice-gas cellular automata and lattice Boltzmann models: an introduction, Springer, Berlin (2000). [35] M. Liu, Z. Yu, T. Wang and L. Fan, Chemical Engineering Science 65 5615 (2010). [36...

Castrejn-Pita, J. R.; Kubiak, K. J.; Castrejn-Pita, A. A.; Wilson, M. C. T.; Hutchings, I. M.

2013-08-26T23:59:59.000Z

171

Multiple model inference.  

SciTech Connect

This paper compares three approaches for model selection: classical least squares methods, information theoretic criteria, and Bayesian approaches. Least squares methods are not model selection methods although one can select the model that yields the smallest sum-of-squared error function. Information theoretic approaches balance overfitting with model accuracy by incorporating terms that penalize more parameters with a log-likelihood term to reflect goodness of fit. Bayesian model selection involves calculating the posterior probability that each model is correct, given experimental data and prior probabilities that each model is correct. As part of this calculation, one often calibrates the parameters of each model and this is included in the Bayesian calculations. Our approach is demonstrated on a structural dynamics example with models for energy dissipation and peak force across a bolted joint. The three approaches are compared and the influence of the log-likelihood term in all approaches is discussed.

Swiler, Laura Painton; Urbina, Angel

2010-07-01T23:59:59.000Z

172

Energy-consumption modelling  

SciTech Connect

A highly sophisticated and accurate approach is described to compute on an hourly or daily basis the energy consumption for space heating by individual buildings, urban sectors, and whole cities. The need for models and specifically weather-sensitive models, composite models, and space-heating models are discussed. Development of the Colorado State University Model, based on heat-transfer equations and on a heuristic, adaptive, self-organizing computation learning approach, is described. Results of modeling energy consumption by the city of Minneapolis and Cheyenne are given. Some data on energy consumption in individual buildings are included.

Reiter, E.R.

1980-01-01T23:59:59.000Z

173

AVESTAR® - Dynamic Modeling  

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

Dynamic Modeling Dynamic Modeling The AVESTAR team is pursuing research on the dynamic modeling and simulation of advanced energy systems ranging from power plants to power grids. Dynamic models provide a continuous view of energy systems in action by calculating their transient behavior over time. Plant-wide Models For power plants, dynamic models are used to analyze a wide variety of operating scenarios, including normal base load operation, startup, shutdown, feedstock switchovers, cycling, and load-following. Dynamic process and control models are also essential for analyzing plant responses to setpoint changes and disturbances, as well as malfunctions and abnormal situations. Other applications of plant-wide dynamic models include controllability and operational flexibility analyses, environmental studies, safety evaluations, and risk mitigation.

174

Model Validation Bernie Lesieutre  

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

Model Validation Model Validation Bernie Lesieutre University of Wisconsin lesieutre@wisc.edu 27 June 2013 Washington, DC DOE/OE Transmission Reliability Program 2 Project Objectives To Develop techniques and tools for PMU- and feature-based power system model validation. Background: Our prior proof-of-concept research demonstrated that feature-based sensitivity models can be used to calibrate power system dynamic models. This was applied to the WECC composite load model for oscillatory and FIDVR events. 3 Project Objectives PSLF simulation features features Sensitivity Model (parameters) Measured Data Simulated Data Features Error Adjust Parameters Technical Approach 4 Project Objectives Current Research: Use PMU data to calibrate power plant models. Four Tasks:

175

Progress in Paleoclimate Modeling  

Science Conference Proceedings (OSTI)

This paper briefly surveys areas of paleoclimate modeling notable for recent progress. New ideas, including hypotheses giving a pivotal role to sea ice, have revitalized the low-order models used to simulate the time evolution of glacial cycles ...

Mark A. Cane; Pascale Braconnot; Amy Clement; Hezi Gildor; Sylvie Joussaume; Masa Kageyama; Myriam Khodri; Didier Paillard; Simon Tett; Eduardo Zorita

2006-10-01T23:59:59.000Z

176

Modeling teleological interpretation  

Science Conference Proceedings (OSTI)

The paper presents a model of teleological interpretation of statutory legal rules as well as an example of the genuine law case, which has been modeled with use of established methodology. Keywords: argumentation, reasoning, teleological interpretation

Tomasz Zurek, Micha? Araszkiewicz

2013-06-01T23:59:59.000Z

177

Sodar in Dispersion Modeling  

Science Conference Proceedings (OSTI)

Usefulness of sodar data for dispersion modeling has been highlighted. A case study of using sodar data in a simple Gaussian dispersion model to calculate ground-level concentration of particulate matter emitted from a cement plant has been ...

B. S. Gera; D. R. Pahwa; Neeraj Saxena; Gurbir Singh; Rakesh Aggarwal

1996-10-01T23:59:59.000Z

178

Anomaly General Circulation Models  

Science Conference Proceedings (OSTI)

Anomally models based on a spectral general circulation model (GCM) are formulated and applied to study of low-frequency atmospheric variability in the extratropics, and long-range forecasting research. A steady linear version of the anomaly ...

A. Navarra; K. Miyakoda

1988-05-01T23:59:59.000Z

179

Simple Models of Stratification  

Science Conference Proceedings (OSTI)

Simple analytical and numerical models of gratified circulation are discussed. The models are driven by buoyancy and mechanical forcing, and buoyancy diffusion is parameterized in term of diapycnal mass fluxes. The interior responds in typical ...

William K. Dewar

1991-12-01T23:59:59.000Z

180

Modeling and Forecasting Aurora  

Science Conference Proceedings (OSTI)

Modeling the physical processes needed for forecasting space-weather events requires multiscale modeling. This article discusses several modelsresearchers use to treat the various auroral processes that influence space weather.

Dirk Lummerzheim

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Scenario Driven Data Modelling  

... an alert is generated that allows humans to query the model and a stored version of the data that matched the model. The high level steps of SDDM are as follows: ...

182

Advanced material appearance modeling  

Science Conference Proceedings (OSTI)

For many years, appearance models in computer graphics focused on general models for reflectance functions coupled with texture maps. Recently, it has been recognized that even very common materials such as hair, skin, fabric, and rusting metal require ...

Julie Dorsey; Holly Rushmeier

2009-08-01T23:59:59.000Z

183

Facial modeling and animation  

Science Conference Proceedings (OSTI)

In this course we present an overview of the concepts and current techniques in facial modeling and animation. We introduce this research area by its history and applications. As a necessary prerequisite for facial modeling, data acquisition is discussed ...

Jrg Haber; Demetri Terzopoulos

2004-08-01T23:59:59.000Z

184

Combining climate model output via model correlations  

Science Conference Proceedings (OSTI)

Apr 9, 2010 ... we fit a statistical model linking the ensemble members explicitly through the .... for the domain (winds, temperature, moisture, etc.) are obtained .... ever, there are different dynamical features to the indi- .... Further, it is possible.

185

Fuel Modeling II  

Science Conference Proceedings (OSTI)

Mar 4, 2013 ... Integrated Computational Modeling of Materials for Nuclear Energy: ... Continuum Theory of Defects and Materials Response to Irradiation:...

186

Manufacturing Modeling and Simulation  

Science Conference Proceedings (OSTI)

... An integrated data model for manufacturing activities will be defined ... Measurement science techniques, including classic statistics, will be applied ...

2013-01-04T23:59:59.000Z

187

Modeling the Pacific Ocean  

SciTech Connect

Two numerical models utilizing primitive equations (two momentum equations and a mass continuity equation) simulate the oceanography of the Pacific Ocean from 20{degrees}S to 50{degrees}N. The authors examine the abundant model data through visualization , by animating the appropriate model fields and viewing the time history of each model simulation as a color movie. The animations are used to aid understanding of ocean circulation.

Johnson, M.A.; O' Brien, J.J. (Mesoscale Air-Sea Interaction Group, Florida State Univ., Tallahassee, FL (US))

1990-01-01T23:59:59.000Z

188

Boron: Modeling, Superconductivity  

Science Conference Proceedings (OSTI)

Oct 8, 2012 ... Boron, Boron Compounds, and Boron Nanomaterials: Structure, Properties, Processing and Applications: Boron: Modeling, Superconductivity

189

PREDICTIVE MODELS. Enhanced Oil Recovery Model  

SciTech Connect

PREDICTIVE MODELS is a collection of five models - CFPM, CO2PM, ICPM, PFPM, and SFPM - used in the 1982-1984 National Petroleum Council study of enhanced oil recovery (EOR) potential. Each pertains to a specific EOR process designed to squeeze additional oil from aging or spent oil fields. The processes are: 1 chemical flooding, where soap-like surfactants are injected into the reservoir to wash out the oil; 2 carbon dioxide miscible flooding, where carbon dioxide mixes with the lighter hydrocarbons making the oil easier to displace; 3 in-situ combustion, which uses the heat from burning some of the underground oil to thin the product; 4 polymer flooding, where thick, cohesive material is pumped into a reservoir to push the oil through the underground rock; and 5 steamflood, where pressurized steam is injected underground to thin the oil. CFPM, the Chemical Flood Predictive Model, models micellar (surfactant)-polymer floods in reservoirs, which have been previously waterflooded to residual oil saturation. Thus, only true tertiary floods are considered. An option allows a rough estimate of oil recovery by caustic or caustic-polymer processes. CO2PM, the Carbon Dioxide miscible flooding Predictive Model, is applicable to both secondary (mobile oil) and tertiary (residual oil) floods, and to either continuous CO2 injection or water-alternating gas processes. ICPM, the In-situ Combustion Predictive Model, computes the recovery and profitability of an in-situ combustion project from generalized performance predictive algorithms. PFPM, the Polymer Flood Predictive Model, is switch-selectable for either polymer or waterflooding, and an option allows the calculation of the incremental oil recovery and economics of polymer relative to waterflooding. SFPM, the Steamflood Predictive Model, is applicable to the steam drive process, but not to cyclic steam injection (steam soak) processes.

Ray, R.M. [DOE Bartlesville Energy Technology Technology Center, Bartlesville, OK (United States)

1992-02-26T23:59:59.000Z

190

The Java memory model  

Science Conference Proceedings (OSTI)

This paper describes the new Java memory model, which has been revised as part of Java 5.0. The model specifies the legal behaviors for a multithreaded program; it defines the semantics of multithreaded Java programs and partially determines legal implementations ... Keywords: Java, concurrency, memory model, multithreading

Jeremy Manson; William Pugh; Sarita V. Adve

2005-01-01T23:59:59.000Z

191

A Smooth Cloud Model  

Science Conference Proceedings (OSTI)

In this paper a large-eddy smooth cloud (SC) model will be presented with smooth implying that the entire model converges under a Newton-based solution procedure or that time scales within the SC model are being resolved. Besides ensuring that ...

J. M. Reisner; C. A. Jeffery

2009-06-01T23:59:59.000Z

192

A Holographic Energy Model  

E-Print Network (OSTI)

We suggest a holographic energy model in which the energy coming from spatial curvature, matter and radiation can be obtained by using the particle horizon for the infrared cut-off. We show the consistency between the holographic dark-energy model and the holographic energy model proposed in this paper. Then, we give a holographic description of the universe.

P. Huang; Yong-Chang Huang

2012-12-30T23:59:59.000Z

193

A Holographic Energy Model  

E-Print Network (OSTI)

We suggest a holographic energy model in which the energy coming from spatial curvature, matter and radiation can be obtained by using the particle horizon for the infrared cut-off. We show the consistency between the holographic dark-energy model and the holographic energy model proposed in this paper. Then, we give a holographic description of the universe.

Huang, P

2013-01-01T23:59:59.000Z

194

Texture enhanced appearance models  

Science Conference Proceedings (OSTI)

Statistical region-based registration methods such as the active appearance model (AAM) are used for establishing dense correspondences in images. At low resolution, images correspondences can be recovered reliably in real-time. However, as resolution ... Keywords: Active appearance models, Atlases, Deformable models, Dimensionality reduction, Face images, Registration, Wavelets, Wedgelets

Rasmus Larsen; Mikkel B. Stegmann; Sune Darkner; Sren Forchhammer; Timothy F. Cootes; Bjarne Kjr Ersbll

2007-04-01T23:59:59.000Z

195

Computational mass spectrometry : algorithms for identification of peptides not present in protein databases  

E-Print Network (OSTI)

Pereira, W. -T. Liu, J. Ng, P. A. Pevzner, P. C. Dorrestein,11188, 2010. W. -T. Liu, J. Ng, D. Meluzzi, N. Bandeira, M.no. 11, pp. 4200-4209, J. Ng, N. Bandeira, W. -T. Liu, M.

Ng, Julio

2011-01-01T23:59:59.000Z

196

Argonne GREET Model  

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

Laboratory Transportation Technology R&D Center DOE Logo Laboratory Transportation Technology R&D Center DOE Logo About TTRDC Mission Experts Facilities Tools Publications Awards Media Center Site Index Search TTRDC ... Search Argonne Home > Transportation Technology R & D Center > Modeling_simulation > Alternative Fuels Autonomie Batteries Engines Green Racing ... ... GREET * Fuel-Cycle Model * Power Water Model * Copyright Statement * Mini-tool and Results * Vehicle-Cycle Model * Publications * AFLEET Tool * Fleet Footprint Calculator * Travel Carbon Calculator * Workshops * Contact ... ... Hybrid Electric Vehicles Hydrogen & Fuel Cells Materials Modeling, Simulation & Software Plug-In Hybrid Electric Vehicles PSAT Smart Grid Student Competitions Transportation Research and Analysis Computing Center

197

Solar information process model  

DOE Green Energy (OSTI)

The MITRE Solar Information Process Model (SIP) is a computerized model that simulates information processes in solar markets. As such, it represents a useful tool in the formulation of solar information outreach programs. For each market investigated, SIP model outputs include prioritized listings of the information needs of key decision makers and other strategically important market participants, and related information flow paths. This report provides macro-descriptions of the model and its logic together with a detailed illustrative example of its application. It also presents the findings and conclusions resulting from utilization of the model in the analysis of information processes in eight solar markets within the residential, commercial and agricultural sectors.

Hewett, R.; Spewak, P.

1978-12-01T23:59:59.000Z

198

Solar radiation model validation  

Science Conference Proceedings (OSTI)

Several mathematical models have been developed within the past few years which estimate the solar radiation from other weather variables. Some of these models have been used to generate data bases which are extensively used in the design and analysis of solar system. Three of these solar radiation models have been used in developing the Augmented SOLMET Solar Data Tapes for the 26 SOLMET sites and the 222 ERSATZ Solar Data Tapes. One of the models, a theoretical one, predicts the solar noon radiation for clear sky conditions from the optical air mass, precipitable water vapor and turbidity variables. A second model, an empirical one, predicts the hourly total horizontal radiation from meteorological variables. And, a third model, also an empirical one, predicts the hourly direct normal radiation from the hourly total horizontal radiation. A study of the accuracy of these three solar radiation models is reported here. To assess the accuracy of these models, data were obtained from several US National Weather Service Stations and other sources, used the models to estimate the solar-radiation, and then compared the modeled radiation values with observed radiation values. The results of these comparisons and conclusions regarding the accuracy of the models are presented.

Hall, I.J.; Prairie, R.R.; Anderson, H.E.; Boes, E.C.

1980-10-01T23:59:59.000Z

199

Foam process models.  

Science Conference Proceedings (OSTI)

In this report, we summarize our work on developing a production level foam processing computational model suitable for predicting the self-expansion of foam in complex geometries. The model is based on a finite element representation of the equations of motion, with the movement of the free surface represented using the level set method, and has been implemented in SIERRA/ARIA. An empirically based time- and temperature-dependent density model is used to encapsulate the complex physics of foam nucleation and growth in a numerically tractable model. The change in density with time is at the heart of the foam self-expansion as it creates the motion of the foam. This continuum-level model uses an homogenized description of foam, which does not include the gas explicitly. Results from the model are compared to temperature-instrumented flow visualization experiments giving the location of the foam front as a function of time for our EFAR model system.

Moffat, Harry K.; Noble, David R.; Baer, Thomas A. (Procter & Gamble Co., West Chester, OH); Adolf, Douglas Brian; Rao, Rekha Ranjana; Mondy, Lisa Ann

2008-09-01T23:59:59.000Z

200

Rail-transportation modeling  

Science Conference Proceedings (OSTI)

Many different types of transportation models are used to model coal transportation by rail. To obtain realistic results, it is usually necessary to consider other modes in addition to rail and other commodities in addition to coal. For example, to know the potential bottlenecks on the rail system it is necessary to predict the total level of freight movement on the rail system. This requires modeling the movements of other commodities in addition to coal. To predict the levels of flows of both coal and non-coal commodities on the rail system, it is necessary to predict the share of total flows carried by rail. This requires accurate modeling of competing modes. To develop accurate rate models it is also necessary to have information on competing modes. This paper presents a collection of transportation models used to model the various aspects of coal transportation by rail and shows how they interact.

Tobin, R.L.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Model documentation: household model of energy  

Science Conference Proceedings (OSTI)

The Household Model of Energy is an econometric model, meaning that energy use is determined quantitatively with the use of economic variables such as fuel prices and income. HOME is also primarily a structural model, meaning that energy use is determined as the result of interactions of intermediate components such as the number of households, the end use fuel shares and the energy use per household. HOME forecasts energy consumption in all occupied residential structures (households) in the United States on an annual basis through 1990. The forecasts are made based upon a number of initial conditions in 1980, various estimated elasticities, various parameters and assumptions, and a set of forecasted fuel prices and income. In addition to the structural detail, HOME operates on a more disaggregated level. This includes four end-use services (space heating, water heating, air conditioning, and others), up to seven fuel/technology types (dependent upon the end use service), two housing types, four structure vintages, and four Census regions. When the model is run as a module in IFFS, a sharing scheme further disaggregates the model to 10 Federal regions.

Holte, J.A.

1984-02-01T23:59:59.000Z

202

Droplet Number Prediction in the NCAR Community Atmosphere Model Steven Ghan Pacific Northwest National Laboratory  

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

Semi-Direct Aerosol Campaign: Semi-Direct Aerosol Campaign: The Influence of Arctic Aerosol on Clouds G. McFarquhar, S. Ghan, J. Verlinde, B. Schmid, J. Tomlinson, J. Hubbe, D. Ronfeld, S. Brooks, D. Collins, D. Cziczo, M. Dubey, M. Gilles, I. Gultepe, G. Kok, A. Korolev, A. Laskin, P. Lawson, P. Liu, C. Mazzoleni, A. Macdonald, R. Moffet, W. Strapp, M. Wolde, A. Zelenyuk, C. Flynn, D. Lubin, M. Shupe, D. Turner M. Ovchinnikov, S. Xie, H. Morrison & A. Soloman Key Issues 1. How do properties of arctic aerosol in April differ from those measured in October during the Mixed Phase Arctic Cloud Experiment (M-PACE)? 2. To what extent do different properties of arctic aerosol during April produce differences in cloud microphysical and macrophysical properties and the surface energy balance?

203

Journeys Beyond the Standard Model  

E-Print Network (OSTI)

Chapter 1 Introduction The Standard Model (SM) of Particleresults of searches for the standard model Higgs boson in ppunderstand new physics. The Standard Model is incom- plete;

Elor, Gilly

2013-01-01T23:59:59.000Z

204

A Little Twin Higgs Model  

E-Print Network (OSTI)

introduced in these twin Higgs models. We leave thesequartic into the left-right twin Higgs model, leading to amechanism to the mirror twin Higgs model and established

Goh, Hock-Seng

2008-01-01T23:59:59.000Z

205

Jenseits des Standard Modells  

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

The Standard Model The Standard Model Unngelöste Rätsel Jenseits des Standard Modells Das Standard Modell gibt auf viele Fragen, über Struktur und Stabilität der Materie eine Antwort. Dazu braucht es nur die sechs Sorten von Quarks und Leptonen und die vier fundamentalen Kräfte. Aber das Standard Modell ist nicht vollständig; es gibt noch viele unbeantwortete Fragen. Eigentlich sollten wir aus Gründen der Symmetrie im Weltraum gleichviel Materie wie Antimaterie beobachten. Wir finden aber praktisch nur normale Materie! Warum? Woraus besteht die "Dunkle Materie", die wir nicht sehen können, die aber im Universum sichtbare Gravitationswirkungen zeigt? Warum kann das Standard Modell die Massen der Teilchen nicht vorhersagen? Sind Quarks and Leptonen wirklich fundamentae Teilchen, oder sind sie aus noch elementareren Partikeln aufgebaut?

206

Model-free Model-fitting and Predictive Distributions  

E-Print Network (OSTI)

Politis, D.N. (2007a). Model-free vs. model-based volatilityPolitis, D.N. (2007b). Model-free prediction, in Bulletin ofFurthermore, the model-free prediction principle can be

Politis, Dimitris N

2010-01-01T23:59:59.000Z

207

Transport Model with Quasipions  

E-Print Network (OSTI)

We extend the normal transport model to include the medium effect on pions by treating them as quasiparticles. The property of the quasipion is determined using the delta-hole model. Modelling heavy-ion collisions at intermediate energies with the new transport equations, we find that it leads to an enhanced production of pions with low kinetic energies. This gives a plausible explanation for the observed enhancement of soft pions in the Bevalac experiments.

Xiong, L.; Ko, Che Ming; Koch, V.

1993-01-01T23:59:59.000Z

208

Improved steamflood analytical model  

E-Print Network (OSTI)

The Jeff Jones steamflood model incorporates oil displacement by steam as described by Myhill and Stegemeier, and a three-component capture factor based on empirical correlations. The main drawback of the model however is the unsatisfactory prediction of the oil production peak: usually significantly lower than the actual. Our study focuses on improving this aspect of the Jeff Jones model. In our study, we simulated the production performance of a 5-spot steamflood pattern unit and compared the results against those based on the Jeff Jones model. Three reservoir types were simulated using 3-D Cartesian black oil models: Hamaca (9?°API), San Ardo (12?°API) and that based on the SPE fourth comparative solution project (14?°API). In the first two field cases, a 45x23x8 model was used that represented 1/8 of a 10-acre 5-spot pattern unit, using typical rock and reservoir fluid properties. In the SPE project case, three models were used: 23x12x12 (2.5 ac), 31x16x12 (5 ac) and 45x23x8 (10 ac), that represented 1/8 of a 5-spot pattern unit. To obtain a satisfactory match between simulation and Jeff Jones analytical model results of the start and height of the production peak, the following refinements to the Jeff Jones model were necessary. First, the dimensionless steam zone size AcD was modified to account for decrease in oil viscosity during steamflood and its dependence on the steam injection rate. Second, the dimensionless volume of displaced oil produced VoD was modified from its square-root format to an exponential form. The modified model gave very satisfactory results for production performance up to 20 years of simulated steamflood, compared to the original Jeff Jones model. Engineers will find the modified model an improved and useful tool for prediction of steamflood production performance.

Chandra, Suandy

2005-08-01T23:59:59.000Z

209

HOMER Micropower Optimization Model  

DOE Green Energy (OSTI)

NREL has developed the HOMER micropower optimization model. The model can analyze all of the available small power technologies individually and in hybrid configurations to identify least-cost solutions to energy requirements. This capability is valuable to a diverse set of energy professionals and applications. NREL has actively supported its growing user base and developed training programs around the model. These activities are helping to grow the global market for solar technologies.

Lilienthal, P.

2005-01-01T23:59:59.000Z

210

Introduction to Graphical Modelling  

E-Print Network (OSTI)

The aim of this chapter is twofold. In the first part we will provide a brief overview of the mathematical and statistical foundations of graphical models, along with their fundamental properties, estimation and basic inference procedures. In particular we will develop Markov networks (also known as Markov random fields) and Bayesian networks, which comprise most past and current literature on graphical models. In the second part we will review some applications of graphical models in systems biology.

Scutari, Marco

2010-01-01T23:59:59.000Z

211

Testing model assumptions in functional regression models  

Science Conference Proceedings (OSTI)

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

Axel Bcher; Holger Dette; Gabriele Wieczorek

2011-11-01T23:59:59.000Z

212

Autotune Building Energy Models  

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

Autotune Building Energy Models Autotune Building Energy Models Joshua New Oak Ridge National Laboratory newjr@ornl.gov, 865-241-8783 April 2, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: * "All (building energy) models are wrong, but some are useful" - 22%-97% different from utility data for 3,349 buildings * More accurate models are more useful - Error from inputs and algorithms for practical reasons - Useful for cost-effective energy efficiency (EE) at speed and scale

213

Fuel Modeling I  

Science Conference Proceedings (OSTI)

Mar 4, 2013 ... Integrated Computational Modeling of Materials for Nuclear Energy: Fuel ... in the incorporation of rare gas fission products such as Kr and Xe.

214

SOME OCEAN MODEL FUNDAMENTALS  

E-Print Network (OSTI)

The purpose of these lectures is to present elements of the equations and algorithms used in numerical models of the large-scale ocean circulation. Such models generally integrate the oceans primitive equations, which are based on Newtons Laws applied to a continuum fluid under hydrostatic balance in a spherical geometry, along with linear irreversible thermodynamics and subgrid scale (SGS) parameterizations. During formulations of both the kinematics and dynamics, we highlight issues related to the use of a generalized vertical coordinate. The vertical coordinate is arguably the most critical element determining how a model is designed and applications to which a model is of use.

Stephen M. Griffies

2005-01-01T23:59:59.000Z

215

Models of Holographic superconductivity  

E-Print Network (OSTI)

We construct general models for holographic superconductivity parametrized by three couplings which are functions of a real scalar field and show that under general assumptions they describe superconducting phase transitions. While some features are universal and model independent, important aspects of the quantum critical behavior strongly depend on the choice of couplings, such as the order of the phase transition and critical exponents of second-order phase transitions. In particular, we study a one-parameter model where the phase transition changes from second to first order above some critical value of the parameter and a model with tunable critical exponents.

Francesco Aprile; Jorge G. Russo

2009-12-02T23:59:59.000Z

216

Modeling & Simulation - Fuel Cells  

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

GCTool Computer Model Helps Focus Fuel Cell Vehicle Research Somewhere near Detroit, an automotive engineer stares at the ceiling, wondering how to squeeze 1% more efficiency out...

217

Modeling and Simulation  

Science Conference Proceedings (OSTI)

"Applying Technical Cost Modeling to the Metals Industry" (Overview), R. Bhatkal and J. Busch, April 1998, pp. 27-28. "Assessing the Affordability of Emerging...

218

Photovoltaic array performance model.  

DOE Green Energy (OSTI)

This document summarizes the equations and applications associated with the photovoltaic array performance model developed at Sandia National Laboratories over the last twelve years. Electrical, thermal, and optical characteristics for photovoltaic modules are included in the model, and the model is designed to use hourly solar resource and meteorological data. The versatility and accuracy of the model has been validated for flat-plate modules (all technologies) and for concentrator modules, as well as for large arrays of modules. Applications include system design and sizing, 'translation' of field performance measurements to standard reporting conditions, system performance optimization, and real-time comparison of measured versus expected system performance.

Kratochvil, Jay A.; Boyson, William Earl; King, David L.

2004-08-01T23:59:59.000Z

219

Simulation and Modeling  

Science Conference Proceedings (OSTI)

Mar 6, 2013... 5Key Laboratory of Unconventional Metallurgy, Kunming University of ... fluid flow and fuel oil heat and mass transfer mathematical model for...

220

MODEL ONLY - LANL  

model only doe/nnsa master june 1, 2006 1 lanl modular crada stevenson-wydler (15 usc 3710) cooperative research and development agreement (hereinafter "crada") no ...

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


221

The Four Step Model  

E-Print Network (OSTI)

of models of trip generation, distribution, and diversion inspecified through generation, distribution, mode choice, andestimate trip generation, trip distribution, and mode choice

McNally, Michael G.

2008-01-01T23:59:59.000Z

222

Practical Models Supporting  

Practical Models Supporting Remediation of Chlorinated Solvents Training Course. The Center for Sustainable Soil and Groundwater Solutions holds training courses on ...

223

Advanced Mixing Models  

Propose mixing indicators. Turbulence kinetic energy ... (Turbulence intensity observed at Point 8 in Tank B & C) Advanced Mixing Models. Computational Sciences. 13.

224

Regional Climate Information & Modeling  

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

Information & Modeling Print E-mail The specific impacts and vulnerabilities posed by climate change are largely defined by regional differences 9in things like geography,...

225

Modelling household electricity consumption.  

E-Print Network (OSTI)

??A number of conclusions are drawn, however given the limited and non-representative na- ture of the data on which the model is calibrated, these can (more)

de la Rue, Philip Martin

2010-01-01T23:59:59.000Z

226

Matrix models - Springer  

Science Conference Proceedings (OSTI)

Duijndam WAL, Duijn P van (1975 b) The influence of chromatin compactness on the stoichiometry of the Feulgen-Schiff proce- dure studied in model films.

227

History of Geochemical Modeling  

Science Conference Proceedings (OSTI)

Table 1   Sources of geochemical modeling software...www.telusplanet.net/public/geogams/index SOLVEQ/CHILLER Mark H. Reed Department of Geological

228

Fragen zum Standard Modell  

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

Quiz What is Fundamental? Fragen zum Standard Modell Frage: Aus wievielen elementaren Teilchen sind die mehr als hundert bekannten Teilchen aufgebaut? Antwort 6 Quarks, 6 Leptonen,...

229

Photovoltaics Business Models  

DOE Green Energy (OSTI)

This report summarizes work to better understand the structure of future photovoltaics business models and the research, development, and demonstration required to support their deployment.

Frantzis, L.; Graham, S.; Katofsky, R.; Sawyer, H.

2008-02-01T23:59:59.000Z

230

Nuclear Fuels - Modeling  

Science Conference Proceedings (OSTI)

Mar 12, 2012... for the Current and Advanced Nuclear Reactors: Nuclear Fuels - Modeling .... Using density functional theory (DFT), we have predicted that...

231

NCNR BT5-USANS Instrument Schedule D. Mildner Tel: (301) ...  

Science Conference Proceedings (OSTI)

... gas shale to methane, R Sakurovs+ (CSIRO) water & brine Nov 02 2 C Lopez-Barron 17837 understanding mechanisms 6CB Liu (Exxon)+ Y Liu ...

232

Local Industry Tours - NXS 2009  

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

SMITHS Rutvik Mehta ALCOA Jian Liu SMITHS Caitlin Murphy ALCOA Yang Liu SMITHS lam nguyen ALCOA nicholas mauro SMITHS Rachel Pollock ALCOA KUN MO SMITHS Steven Remsen ALCOA...

233

1913.ps  

E-Print Network (OSTI)

Feb 26, 2008 ... Technical report, University of Colorado at Boulder, 2007. 562. [12] L. Liu and S. Liu. Dynamic and static job allocation for multi-server systems.

234

Public Transit Training: A Mechanism to Increase Ridership Among Older Adults  

E-Print Network (OSTI)

Rodier. Video Transit Training for Older Travelers: Caseand Liu PUBLIC TRANSIT TRAINING: A MECHANISM TO INCREASEand Liu PUBLIC TRANSIT TRAINING: A MECHANISM TO INCREASE

Shaheen, Susan; Allen, Denise; Liu, Judy

2008-01-01T23:59:59.000Z

235

Generic-model based human-body modeling  

Science Conference Proceedings (OSTI)

This paper presents a generic-model based human-body modeling method which take the anatomical structure of the human body into account. The generic model contains anatomical structure of bones and muscles of the human body. For a given target skin mesh, ... Keywords: anatomically-based modeling, generic model, human body modeling

Xiaomao Wu; Lizhuang Ma; Ke-Sen Huang; Yan Gao; Zhihua Chen

2005-09-01T23:59:59.000Z

236

Local model network identification for online engine modelling  

Science Conference Proceedings (OSTI)

In this paper an evolving local model network (LMN) which is especially suited for engine modelling is presented and discussed. The incremental construction of the model tree allows to gradually increase the model complexity while a proper initialisation ... Keywords: Engine modelling, Incremental learning, Local model network, Online learning

Christoph Hametner; Stefan Jakubek

2013-01-01T23:59:59.000Z

237

Transforming object-oriented models to process-oriented models  

Science Conference Proceedings (OSTI)

Object-oriented modelling is an established approach to document the information systems. In an object model, a system is captured in terms of object types and associations, state machines, collaboration diagrams, etc. Process modeling on the other hand, ... Keywords: model transformation, object model, process model

Guy Redding; Marlon Dumas; Arthur H. M. Ter Hofstede; Adrian Iordachescu

2007-09-01T23:59:59.000Z

238

Groundwater Model Validation  

SciTech Connect

Models have an inherent uncertainty. The difficulty in fully characterizing the subsurface environment makes uncertainty an integral component of groundwater flow and transport models, which dictates the need for continuous monitoring and improvement. Building and sustaining confidence in closure decisions and monitoring networks based on models of subsurface conditions require developing confidence in the models through an iterative process. The definition of model validation is postulated as a confidence building and long-term iterative process (Hassan, 2004a). Model validation should be viewed as a process not an end result. Following Hassan (2004b), an approach is proposed for the validation process of stochastic groundwater models. The approach is briefly summarized herein and detailed analyses of acceptance criteria for stochastic realizations and of using validation data to reduce input parameter uncertainty are presented and applied to two case studies. During the validation process for stochastic models, a question arises as to the sufficiency of the number of acceptable model realizations (in terms of conformity with validation data). Using a hierarchical approach to make this determination is proposed. This approach is based on computing five measures or metrics and following a decision tree to determine if a sufficient number of realizations attain satisfactory scores regarding how they represent the field data used for calibration (old) and used for validation (new). The first two of these measures are applied to hypothetical scenarios using the first case study and assuming field data consistent with the model or significantly different from the model results. In both cases it is shown how the two measures would lead to the appropriate decision about the model performance. Standard statistical tests are used to evaluate these measures with the results indicating they are appropriate measures for evaluating model realizations. The use of validation data to constrain model input parameters is shown for the second case study using a Bayesian approach known as Markov Chain Monte Carlo. The approach shows a great potential to be helpful in the validation process and in incorporating prior knowledge with new field data to derive posterior distributions for both model input and output.

Ahmed E. Hassan

2006-01-24T23:59:59.000Z

239

Biosphere Process Model Report  

Science Conference Proceedings (OSTI)

To evaluate the postclosure performance of a potential monitored geologic repository at Yucca Mountain, a Total System Performance Assessment (TSPA) will be conducted. Nine Process Model Reports (PMRs), including this document, are being developed to summarize the technical basis for each of the process models supporting the TSPA model. These reports cover the following areas: (1) Integrated Site Model; (2) Unsaturated Zone Flow and Transport; (3) Near Field Environment; (4) Engineered Barrier System Degradation, Flow, and Transport; (5) Waste Package Degradation; (6) Waste Form Degradation; (7) Saturated Zone Flow and Transport; (8) Biosphere; and (9) Disruptive Events. Analysis/Model Reports (AMRs) contain the more detailed technical information used to support TSPA and the PMRs. The AMRs consists of data, analyses, models, software, and supporting documentation that will be used to defend the applicability of each process model for evaluating the postclosure performance of the potential Yucca Mountain repository system. This documentation will ensure the traceability of information from its source through its ultimate use in the TSPA-Site Recommendation (SR) and in the National Environmental Policy Act (NEPA) analysis processes. The objective of the Biosphere PMR is to summarize (1) the development of the biosphere model, and (2) the Biosphere Dose Conversion Factors (BDCFs) developed for use in TSPA. The Biosphere PMR does not present or summarize estimates of potential radiation doses to human receptors. Dose calculations are performed as part of TSPA and will be presented in the TSPA documentation. The biosphere model is a component of the process to evaluate postclosure repository performance and regulatory compliance for a potential monitored geologic repository at Yucca Mountain, Nevada. The biosphere model describes those exposure pathways in the biosphere by which radionuclides released from a potential repository could reach a human receptor. Collectively, the potential human receptor and exposure pathways form the biosphere model. More detailed technical information and data about potential human receptor groups and the characteristics of exposure pathways have been developed in a series of AMRs and Calculation Reports.

J. Schmitt

2000-05-25T23:59:59.000Z

240

Epidemic modeling techniques for smallpox  

E-Print Network (OSTI)

Infectious disease models predict the impact of outbreaks. Discrepancies between model predictions stem from both the disease parameters used and the underlying mathematics of the models. Smallpox has been modeled extensively ...

McLean, Cory Y. (Cory Yuen Fu)

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Model Driven Security Functional Testing  

Science Conference Proceedings (OSTI)

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

2013-01-15T23:59:59.000Z

242

Modeling the Loss Distribution  

Science Conference Proceedings (OSTI)

In this paper, we focus on modeling and predicting the loss distribution for credit risky assets such as bonds and loans. We model the probability of default and the recovery rate given default based on shared covariates. We develop a new class of default ... Keywords: Basel II, default prediction, loss distribution, recovery rates

Sudheer Chava; Catalina Stefanescu; Stuart Turnbull

2011-07-01T23:59:59.000Z

243

Modeling for Insights  

Science Conference Proceedings (OSTI)

System Dynamics is a computer-aided approach to evaluating the interrelationships of different components and activities within complex systems. Recently, System Dynamics models have been developed in areas such as policy design, biological and medical modeling, energy and the environmental analysis, and in various other areas in the natural and social sciences. The real power of System Dynamic modeling is gaining insights into total system behavior as time, and system parameters are adjusted and the effects are visualized in real time. System Dynamic models allow decision makers and stakeholders to explore long-term behavior and performance of complex systems, especially in the context of dynamic processes and changing scenarios without having to wait decades to obtain field data or risk failure if a poor management or design approach is used. The Idaho National Laboratory recently has been developing a System Dynamic model of the US Nuclear Fuel Cycle. The model is intended to be used to identify and understand interactions throughout the entire nuclear fuel cycle and suggest sustainable development strategies. This paper describes the basic framework of the current model and presents examples of useful insights gained from the model thus far with respect to sustainable development of nuclear power.

Jacob J. Jacobson; Gretchen Matthern

2007-04-01T23:59:59.000Z

244

Nonparametric combinatorial sequence models  

Science Conference Proceedings (OSTI)

This work considers biological sequences that exhibit combinatorial structures in their composition: groups of positions of the aligned sequences are "linked" and covary as one unit across sequences. If multiple such groups exist, complex interactions ... Keywords: Chinese restaurant franchise, Chinese restaurant process, MHC binding, mixture models, sequence models

Fabian L. Wauthier; Michael I. Jordan; Nebojsa Jojic

2011-03-01T23:59:59.000Z

245

Models for universal usability  

Science Conference Proceedings (OSTI)

This paper discusses how model-based approaches can support designers and developers to address a number of challenges raised by universal usability, such as the possibility of obtaining user interfaces able to adapt to any device and usability evaluation ... Keywords: abstract user interfaces, authoring environments, heterogeneous clients, multi-platform user interfaces, remote evaluation, task Models

Fabio Patern

2003-11-01T23:59:59.000Z

246

Articular human joint modelling  

Science Conference Proceedings (OSTI)

The work reported in this paper encapsulates the theories and algorithms developed to drive the core analysis modules of the software which has been developed to model a musculoskeletal structure of anatomic joints. Due to local bone surface and contact ... Keywords: 6DOF, Joint Modelling, Software, Tissue wrapping, bilateral, constraints, forced contact based articulation, unilateral

Ibrahim i. Esat; Neviman Ozada

2010-03-01T23:59:59.000Z

247

Solar radiation modelling  

Science Conference Proceedings (OSTI)

The Sun is the main energy source of the life on the Earth. Thus, solar radiation energy data and models are important for many areas of research and applications. Many parameters influence the amount of solar energy at a particular standing point of ... Keywords: Digital elevation model, Energy of quasiglobal radiation, Meteorology, Shadows, Virtual Sun motion

Klemen Zakek; Toma Podobnikar; Kritof Otir

2005-03-01T23:59:59.000Z

248

Composite Load Model Evaluation  

Science Conference Proceedings (OSTI)

The WECC load modeling task force has dedicated its effort in the past few years to develop a composite load model that can represent behaviors of different end-user components. The modeling structure of the composite load model is recommended by the WECC load modeling task force. GE Energy has implemented this composite load model with a new function CMPLDW in its power system simulation software package, PSLF. For the last several years, Bonneville Power Administration (BPA) has taken the lead and collaborated with GE Energy to develop the new composite load model. Pacific Northwest National Laboratory (PNNL) and BPA joint force and conducted the evaluation of the CMPLDW and test its parameter settings to make sure that: the model initializes properly, all the parameter settings are functioning, and the simulation results are as expected. The PNNL effort focused on testing the CMPLDW in a 4-bus system. An exhaustive testing on each parameter setting has been performed to guarantee each setting works. This report is a summary of the PNNL testing results and conclusions.

Lu, Ning; Qiao, Hong (Amy)

2007-09-30T23:59:59.000Z

249

Fitting Zodiacal Models  

E-Print Network (OSTI)

Models of the zodiacal light are necessary to convert measured data taken from low Earth orbit into the radiation field outside the solar system. The uncertainty in these models dominates the overall uncertainty in determining the extragalactic background light for wavelengths < 100 microns.

Edward L. Wright

2001-06-22T23:59:59.000Z

250

FLIGHT: Clock Calibration Using Fluorescent Lighting Zhenjiang Li1,4, Wenwei Chen1, Cheng Li1, Mo Li1, Xiang-yang Li2, Yunhao Liu3,4  

E-Print Network (OSTI)

FLIGHT: Clock Calibration Using Fluorescent Lighting Zhenjiang Li1,4, Wenwei Chen1, Cheng Li1, Mo propose a novel clock calibration approach called FLIGHT, which leverages the fact that the fluorescent, Performance Keywords Clock calibration, Fluorescent lighting, Energy efficiency 1. INTRODUCTION Maintaining

Liu, Yunhao

251

Jun Wang1, Sundar A Christopher1, Xiong Liu2, Jeffrey S. Reid3, Elizabeth A. Reid3, Hal Maring4 1Department of Atmospheric Sciences, University of Alabama-Huntsville 3Marine Meteorology Division, Naval Research Laboratory, Monterey, CA  

E-Print Network (OSTI)

in the Puerto Rico Dust Experiment (PRIDE) PI: Philip B. Russell MS 245-5, NASA Ames Research Center Moffett new analyses of aerosol radiative forcing sensitivity, single scattering albedo, and the solar spectral radiative energy budget. (h) Derive aerosol size distributions from optical depth and extinction

Wang, Jun

252

Large-Scale Image Annotation using Visual Synset David Tsai1,2, Yushi Jing2, Yi Liu2, Henry Rowley2, Sergey Ioffe2 and James M.Rehg1  

E-Print Network (OSTI)

military, solar power satellite, water pollution, trichy airport, future computers, herniated disc sky, tree, garden, cottage ... Spanish home design, Mediterranean houses, luxury Mediterranean home and labels alone. · We evaluate this by looking at the discriminative power of the linear SVM classifier

Haro, Antonio

254

model | OpenEI  

Open Energy Info (EERE)

model model Dataset Summary Description NREL's Research and Support Facility (RSF) energy model for 2011. Source NREL Date Released February 07th, 2013 (10 months ago) Date Updated Unknown Keywords 2011 energy model NREL RSF Data text/csv icon rsf_energy_model_2011.csv (csv, 772 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Open Data Commons Attribution License Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote Comments Login or register to post comments If you rate this dataset, your published comment will include your rating. Dataset Summary Description

255

XAFS Model Compound Library  

DOE Data Explorer (OSTI)

The XAFS Model Compound Library contains XAFS data on model compounds. The term "model" compounds refers to compounds of homogeneous and well-known crystallographic or molecular structure. Each data file in this library has an associated atoms.inp file that can be converted to a feff.inp file using the program ATOMS. (See the related Searchable Atoms.inp Archive at http://cars9.uchicago.edu/~newville/adb/) This Library exists because XAFS data on model compounds is useful for several reasons, including comparing to unknown data for "fingerprinting" and testing calculations and analysis methods. The collection here is currently limited, but is growing. The focus to date has been on inorganic compounds and minerals of interest to the geochemical community. [Copied, with editing, from http://cars9.uchicago.edu/~newville/ModelLib/

Newville, Matthew

256

Thermodynamic Modeling Studies  

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

Modeling Studies Modeling Studies J. Lindner, L. T. Smith, J. C. Luthe, L. Pearson. R. K. Toghiani, Y. Xia, and P. Naik Institute for Clean Energy Technology Mississippi State University May 20,2009 Initial Tank Composition Remove liquid to reflect undrained saltcake Stage 1 Dissolution Remove transfer stream 1 liquids transfer stream 0 liquids recycle solids liquids transfer stream 1 liquids recycle solids Next Stage of Dissolution DWPF recycle Thermodynamic Modeling Studies 2 Overview of Presentation * Database Activities and Needs * C farm retrievals and neural network development * Thermodynamic data and computational methods for liquid waste flowsheet modeling (SRS) * Aluminum solubility studies Thermodynamic Modeling Studies 3 Database Activities and Needs * Earlier a mid-term study addressed the solubility of a number of systems if

257

Use dispersion modeling update  

SciTech Connect

This paper discusses EPA's long-awaited update to the Industrial Source Complex (ISC) dispersion models which provides computer-software to comply with National Ambient Air Quality Standards. Moreover, the ISC2 models's Fortran codes are available from EPA at no cost, in a form compatible with desktop computers. This is a plus for hydrocarbon processing industry (HPI) environmental control professionals. ISC2 will be used for all future regulatory applications where dispersion modeling is required for facilities in simple terrain. Process engineers sometimes use ISC models and are often called upon to assist in developing emissions estimates that the program uses to calculate air quality impacts. The model challenges users because it can represent a variety of configurations for emissions sources. Title III of the Clean Air Act Amendments is an entirely new section dealing with air toxics such as those in the HPI. EPA is required to develop a list of maximum achievable control technologies (MACT) for these compounds.

Freiman, J.P.; Hill, J. (Bechtel Environmental, Inc., Houston, TX (US))

1992-08-01T23:59:59.000Z

258

Criticality Model Report  

Science Conference Proceedings (OSTI)

The purpose of the ''Criticality Model Report'' is to validate the MCNP (CRWMS M&O 1998h) code's ability to accurately predict the effective neutron multiplication factor (k{sub eff}) for a range of conditions spanned by various critical configurations representative of the potential configurations commercial reactor assemblies stored in a waste package may take. Results of this work are an indication of the accuracy of MCNP for calculating eigenvalues, which will be used as input for criticality analyses for spent nuclear fuel (SNF) storage at the proposed Monitored Geologic Repository. The scope of this report is to document the development and validation of the criticality model. The scope of the criticality model is only applicable to commercial pressurized water reactor fuel. Valid ranges are established as part of the validation of the criticality model. This model activity follows the description in BSC (2002a).

J.M. Scaglione

2003-03-12T23:59:59.000Z

259

VENTILATION MODEL REPORT  

SciTech Connect

The purpose of the Ventilation Model is to simulate the heat transfer processes in and around waste emplacement drifts during periods of forced ventilation. The model evaluates the effects of emplacement drift ventilation on the thermal conditions in the emplacement drifts and surrounding rock mass, and calculates the heat removal by ventilation as a measure of the viability of ventilation to delay the onset of peak repository temperature and reduce its magnitude. The heat removal by ventilation is temporally and spatially dependent, and is expressed as the fraction of heat carried away by the ventilation air compared to the fraction of heat produced by radionuclide decay. One minus the heat removal is called the wall heat fraction, or the remaining amount of heat that is transferred via conduction to the surrounding rock mass. Downstream models, such as the ''Multiscale Thermohydrologic Model'' (BSC 2001), use the wall heat fractions as outputted from the Ventilation Model to initialize their postclosure analyses.

V. Chipman

2002-10-31T23:59:59.000Z

260

Direct insolation models  

DOE Green Energy (OSTI)

Several recently published models of the direct component of the broadband insolation are compared for clear sky conditions. The comparison includes seven simple models and one rigorous model that is used as a basis for determining accuracy. Where possible, the comparison is made between the results of each model for each atmospheric constituent (H/sub 2/O, CO/sub 2/, O/sub 3/, O/sub 2/, aerosol and molecular scattering) separately as well as for the combined effect of all of the constituents. Two optimum simple models of varying degrees of complexity are developed as a result of this comparison. The study indicates: aerosols dominate the attenuation of the direct beam for reasonable atmospheric conditions; molecular scattering is next in importance; water vapor is an important absorber; and carbon dioxide and oxygen are relatively unimportant as attenuators of the broadband solar energy.

Bird, R.; Hulstrom, R.L.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Global ice sheet modeling  

Science Conference Proceedings (OSTI)

The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed.

Hughes, T.J.; Fastook, J.L. [Univ. of Maine, Orono, ME (United States). Institute for Quaternary Studies

1994-05-01T23:59:59.000Z

262

Modelling the carbon system  

E-Print Network (OSTI)

ABSTRACT. Claims that forest cutting (luring the last few decades has contributed significantly to the buildup in atmospheric CO2 have cast doubt on the validity of models used to estimate CO. uptake by the ocean. In this paper we review the existing models and conclude that the box-diffusion model of Oeschger and his co-workers provides an excellent fit to the average distributions of natural and bomb-produced radiocarbon. We also take the first steps toward a more detailed ocean model which takes into account upwelling in the equatorial zone and deep water formation in the polar zone. The model is calibrated using the distribution of bomb-produced and cosmic ray-produced radiocarbon in the ocean. Preliminary calculations indicate that the fossil fuel CO2 uptake by this model will be greater than that by the box-diffusion model of Oeschger and others (1975) but not great enough to accommodate a significant decline in the mass of the terrestrial biosphere over the past two decades.

Wallace S Broecker; Tsung-hung Peng; Richard Engh

1980-01-01T23:59:59.000Z

263

SPAR Model Structural Efficiencies  

SciTech Connect

The Nuclear Regulatory Commission (NRC) and the Electric Power Research Institute (EPRI) are supporting initiatives aimed at improving the quality of probabilistic risk assessments (PRAs). Included in these initiatives are the resolution of key technical issues that are have been judged to have the most significant influence on the baseline core damage frequency of the NRCs Standardized Plant Analysis Risk (SPAR) models and licensee PRA models. Previous work addressed issues associated with support system initiating event analysis and loss of off-site power/station blackout analysis. The key technical issues were: Development of a standard methodology and implementation of support system initiating events Treatment of loss of offsite power Development of standard approach for emergency core cooling following containment failure Some of the related issues were not fully resolved. This project continues the effort to resolve outstanding issues. The work scope was intended to include substantial collaboration with EPRI; however, EPRI has had other higher priority initiatives to support. Therefore this project has addressed SPAR modeling issues. The issues addressed are SPAR model transparency Common cause failure modeling deficiencies and approaches Ac and dc modeling deficiencies and approaches Instrumentation and control system modeling deficiencies and approaches

John Schroeder; Dan Henry

2013-04-01T23:59:59.000Z

264

Analytical Modeling | Open Energy Information  

Open Energy Info (EERE)

Analytical Modeling Analytical Modeling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Analytical Modeling Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Modeling Techniques Parent Exploration Technique: Modeling Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Analytical Modeling: A mathematical modeling technique used for simulating, explaining, and making predictions about the mechanisms involved in complex physical processes. Other definitions:Wikipedia Reegle Introduction Analytical models are mathematical models that have a closed form solution. Or in other words the solution to the equations used to describe changes in

265

Model of detached plasmas  

SciTech Connect

Recently a tokamak plasma was observed in TFTR that was not limited by a limiter or a divertor. A model is proposed to explain this equilibrium, which is called a detached plasma. The model consists of (1) the core plasma where ohmic heating power is lost by anomalous heat conduction and (2) the shell plasma where the heat from the core plasma is radiated away by the atomic processes of impurity ions. A simple scaling law is proposed to test the validity of this model.

Yoshikawa, S.; Chance, M.

1986-07-01T23:59:59.000Z

266

Modeling Compressed Turbulence  

Science Conference Proceedings (OSTI)

From ICE to ICF, the effect of mean compression or expansion is important for predicting the state of the turbulence. When developing combustion models, we would like to know the mix state of the reacting species. This involves density and concentration fluctuations. To date, research has focused on the effect of compression on the turbulent kinetic energy. The current work provides constraints to help development and calibration for models of species mixing effects in compressed turbulence. The Cambon, et al., re-scaling has been extended to buoyancy driven turbulence, including the fluctuating density, concentration, and temperature equations. The new scalings give us helpful constraints for developing and validating RANS turbulence models.

Israel, Daniel M. [Los Alamos National Laboratory

2012-07-13T23:59:59.000Z

267

Modeling EERE Deployment Programs  

Science Conference Proceedings (OSTI)

The purpose of this report is to compile information and conclusions gathered as part of three separate tasks undertaken as part of the overall project, Modeling EERE Deployment Programs, sponsored by the Planning, Analysis, and Evaluation office within the Department of Energys Office of Energy Efficiency and Renewable Energy (EERE). The purpose of the project was to identify and characterize the modeling of deployment programs within the EERE Technology Development (TD) programs, address improvements to modeling in the near term, and note gaps in knowledge where future research is needed.

Cort, Katherine A.; Hostick, Donna J.; Belzer, David B.; Livingston, Olga V.

2007-11-08T23:59:59.000Z

268

Feature-oriented refinement of models, metamodels and model transformations  

Science Conference Proceedings (OSTI)

Done well, the blend of Model Driven Development (MDD) and Software Product Lines (SPL) offers a promising approach, mixing abstraction from MDD and variability from SPL. Although Model Driven Product Lines have flourished recently, the focus so far ... Keywords: AHEAD, XAK, metamodels, model transformations, modeling, models, refinements

Salvador Trujillo; Ander Zubizarreta; Xabier Mendialdua; Josune de Sosa

2009-10-01T23:59:59.000Z

269

Nonlinear Modelling of Alstom Gasifier Using Wiener Model  

Science Conference Proceedings (OSTI)

A novel nonlinear modelling approach has been developed and implemented on Alstom gasifier using Wiener model. The linear element of the Wiener model was identified by a combined subspace state space method, which integrated MOESP (Multivariable Output-Error ... Keywords: modelling, subspace, wiener model, neural networks, state space methods

Wang Xin; Zhao Liang; Lu Jianhong; Xiang Wenguo

2010-05-01T23:59:59.000Z

270

Eliciting information for product modeling using process modeling  

Science Conference Proceedings (OSTI)

A product model is a formal and structured definition of product information. The most common procedure for defining a product data model is to first describe the business and/or engineering process in a formal process model, then to create a product ... Keywords: CASE, GTPPM, Information flow, Process model, Product model, STEP

Ghang Lee; Charles M. Eastman; Rafael Sacks

2007-08-01T23:59:59.000Z

271

Category:Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

in this category, out of 5 total. A Analytical Modeling C Conceptual Model M Modeling-Computer Simulations N Numerical Modeling P Portfolio Risk Modeling Retrieved from "http:...

272

Modeling & Simulation publications  

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

Modeling & Simulation » Modeling & Simulation » Modeling & Simulation Publications Modeling & Simulation publications Research into alternative forms of energy, especially energy security, is one of the major national security imperatives of this century. Get Expertise David Harradine Physical Chemistry and Applied Spectroscopy Email Josh Smith Chemistry Email The inherent knowledge of transformation has beguiled sorcerers and scientists alike. D.A. Horner, F. Lambert, J.D. Kress, and L.A. Collins, "Transport properties of lithium hydride from quantum molecular dynamics and orbital-free molecular dynamics," Physical Review B - Condensed Matter and Materials Physics 80(2) (2009). J.D. Kress, D.A. Horner, and L.A. Collins, "Mixing rules for optical and transport properties of warm, dense matter," AIP Conference Proceedings 1195, 931-934 (2009).

273

Single-Column Modeling  

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

C.J. Somerville and S. F. lacobellis C.J. Somerville and S. F. lacobellis Climate Research Division Scripps Institution of Oceanography University of California, San Diego La Jolla, CA 92093-0224 Our project is centered around a computationally efficient and economical one-dimensional (vertical) model, resembling a single column of a general circulation model (GCM) grid, applied to the experimental site of the Atmospheric Radiation Measurement (ARM) Program. The model contains a full set of modern GCM parameterizations of subgrid physical processes. To force the model, the advective terms in the budget equations are specified observationally from operational numerical weather prediction analyses. These analyses, based on four-dimensional data assimilation techniques, provide dynamically consistent wind fields and horizontal gradients

274

Opponent modeling in poker  

Science Conference Proceedings (OSTI)

Poker is an interesting test-bed for artificial intelligence research. It is a game of imperfect knowledge, where multiple competing agents must deal with risk management, agent modeling, unreliable information and deception, much like decision-making ...

Darse Billings; Denis Papp; Jonathan Schaeffer; Duane Szafron

1998-07-01T23:59:59.000Z

275

Updating Applied Diffusion Models  

Science Conference Proceedings (OSTI)

Most diffusion models currently used in air quality applications are substantially out of date with understanding of turbulence and diffusion in the planetary boundary layer. Under a Cooperative Agreement with the Environmental Protection Agency, ...

J. C. Weil

1985-11-01T23:59:59.000Z

276

Thermodynamic and Kinetic Modeling  

Science Conference Proceedings (OSTI)

Oct 11, 2012... capability of the coating and thus the achievable engine efficiency. ... Aluminide coating of steels enables more efficient power generation through ... and kinetic modeling in order to build a time and temperature dependent...

277

Structural Materials Modeling  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Sponsored by: TMS Materials Processing and Manufacturing Division, TMS ... Fei Gao2; Kiran Solanki3; Xin Sun2; 1Mississippi State University; 2PNNL; ... A Multiscale Metal/Hydride Mechanical Model for Used-Fuel Zircaloy...

278

Modeling from Physical Principles  

E-Print Network (OSTI)

This article, on the other hand, shall concentrate on issues relating to modeling the physical plant to be controlled. Modeling physical systems seems to be a straightforward task. Since physical systems and experiments are often reproducible in a reliable fashion, since measurements from physical systems are frequently available in abundance and of high quality, since the meta--laws of physics are mostly well understood, it seems to be a particularly easy task to come up with accurate mathematical descriptions of most physical plants. Yet, there are some typical pitfalls and frequent misconceptions about the modeling of physical systems, especially among control engineers. These shall be illustrated, and a sound methodological basis for modeling from physical principles shall then be created. 2 Common Misconceptions

Franois E. Cellier; Hilding Elmqvist; Martin Otter

1996-01-01T23:59:59.000Z

279

Self modelling knowledge networks  

Science Conference Proceedings (OSTI)

What the scope of knowledge management (KM) is concerned, the focus of attention is shifting towards inter-organisational aspects resulting in new requirements for the KM process. This paper introduces the concept of self modelling knowledge networks ...

Volker Derballa; Antonia Albani

2005-10-01T23:59:59.000Z

280

Session 12: Modelling  

Science Conference Proceedings (OSTI)

May 24, 2013 ... Magnesium Workshop Madrid 2013: Session 12: Modelling - I ... that uses first- principles input on solute/basal-dislocation interaction energies [2]. ... integrated open-source software, collaborative community building and The...

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Modeling Investment Castings  

Science Conference Proceedings (OSTI)

Once the finite-element meshes of the metal, mold, mold wrap, and furnace are created, they are assembled into a final model as shown in Figure 6. It is then...

282

Search by Model  

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

Model Select Year... 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984...

283

Kirkpatrick's Learning Evaluation Model  

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

One of the core principles of training evaluation is the model based on four sequential levels that was developed by Donald Kirkpatrick. The levels, 1) Reaction, 2) Learning, 3) Behavior, and 4)...

284

Common Information Model Primer  

Science Conference Proceedings (OSTI)

The Common Information Model (CIM) Primer explains the basics of the CIM (IEC 61970, IEC 61968, and IEC 62325). Starting with a historical perspective, it describes how the CIM originated and grew through the years. The functions of various working groups of Technical Committee 57 of the International Electrotechnical Commission (IEC) are described. The process of how an IEC standard is created is also outlined. The basics of the Unified Modeling Language (UML) are detailed to introduce the reader to the...

2011-11-10T23:59:59.000Z

285

Geysers injection modeling  

DOE Green Energy (OSTI)

Our research is concerned with mathematical modeling techniques for engineering design and optimization of water injection in vapor-dominated systems. The emphasis in the project has been on the understanding of physical processes and mechanisms during injection, applications to field problems, and on transfer of numerical simulation capabilities to the geothermal community. This overview summarizes recent work on modeling injection interference in the Southeast Geysers, and on improving the description of two-phase flow processes in heterogeneous media.

Pruess, K.

1994-04-01T23:59:59.000Z

286

Models of multiquark states  

SciTech Connect

The success of simple constituent quark models in single-hardon physics and their failure in multiquark physics is discussed, emphasizing the relation between meson and baryon spectra, hidden color and the color matrix, breakup decay modes, coupled channels, and hadron-hadron interactions via flipping and tunneling of flux tubes. Model-independent predictions for possible multiquark bound states are considered and the most promising candidates suggested. A quark approach to baryon-baryon interactions is discussed.

Lipkin, H.J.

1986-01-01T23:59:59.000Z

287

Theory Modeling and Simulation  

SciTech Connect

Los Alamos has a long history in theory, modeling and simulation. We focus on multidisciplinary teams that tackle complex problems. Theory, modeling and simulation are tools to solve problems just like an NMR spectrometer, a gas chromatograph or an electron microscope. Problems should be used to define the theoretical tools needed and not the other way around. Best results occur when theory and experiments are working together in a team.

Shlachter, Jack [Los Alamos National Laboratory

2012-08-23T23:59:59.000Z

288

Statistical Alignment Models for . . .  

E-Print Network (OSTI)

The ever-increasing amount of parallel data opens a rich resource to multilingual natural language processing, enabling models to work on various translational aspects like detailed human annotations, syntax and semantics. With efficient statistical models, many cross-language applications have seen significant progresses in recent years, such as statistical machine trans-lation, speech-to-speech translation, cross-lingual information retrieval and bilingual lexicog-raphy. However, the current state-of-the-art statistical translation models rely heavily on the word-level mixture models a bottleneck, which fails to represent the rich varieties and depen-dencies in translations. In contrast to word-based translations, phrase-based models are more robust in capturing various translation phenomena than the word-level (e.g., local word reordering), and less susceptive to the errors from preprocessing such as word segmentations and tok-enizations. Leveraging phrase level knowledge in translation models is challenging yet reward-ing: it also brings significant improvements on translation qualities. Above the phrase-level are

Bing Zhao

2007-01-01T23:59:59.000Z

289

Das Standard Modell  

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

Model Model Was ist fundamental? Das Standard Modell Physiker haben eine Theorie - Das Standard Modell - entwickelt, welche erklärt, woraus die Welt besteht und was sie zusammenhält. Es ist eine einfache und überzeugende Theorie, welche hunderte von Teilchen und ihre gegenseitigen Wechselwirkungen erklärt. Dazu braucht sie nur wenige elementare Teilchen : 6 Quarks. 6 Leptonen. Das bekannteste Lepton ist das Elektron. Wir reden gleich von Leptonen. Kraft-Träger Teilchen, wie z.B. das Photon. Wir werden später über diese Teilchen reden. Alle bekannten materiellenTeilchen sind aus Quarks und Leptonen zusammengesetzt und sie wechselwirken untereinander durch den Austausch von Kraft-Träger Teilchen. Das Standard Modell ist eine gute Theorie. Eine grosse Zahl von Experimenten haben ihre Voraussagen mit unglaublicher Präzision bestätigt und alle Teilchen, welche die Theorie bis heute vorausgesagt hat, wurden auch gefunden. Aber die Theorie kann nicht alles erklären. Die Schwerkraft zum Beispiel ist nicht im Standard Modell eingeschlossen.

290

Modeling Capacity Reservation Contract  

E-Print Network (OSTI)

In this paper we model a scenario where a chip designer (buyer) buys capacity from chip manufacturers (suppliers) in the presence of demand uncertainty faced by the buyer. We assume that the buyer knows the probability distribution of his demand. The supplier offers the buyer to reserve capacity in advance at a price that is lower than the historical average of the spot price. The suppliers price (if the buyer reserves capacity in advance) is function of her capacity, demand for her capacity, unit production cost, the average spot market price and the amount of capacity reserved by the buyer. Based on these parameters we derive the price the suppliers will charge. We formulate the problem from the buyers perspective. The buyers decisions are how much capacity to reserve and from how many suppliers. The optimal solution is obtained numerically. Our model addresses the following issues that are not covered in the current literature on capacity reservation models. In the existing literature the suppliers price is an exogenous parameter. We model the suppliers price from relevant parameters mentioned above. This makes our model richer. For example, if the expected capacity utilization for the supplier is likely to be low then the supplier will charge a lower price for capacity reservation. In reality, the buyer sources from multiple suppliers. Most mathematical models on capacity reservation, we are aware of, assumes a single buyer and a single supplier. We generalize this to a single buyer and multiple suppliers.

Jishnu Hazra; B. Mahadevan; Sudhi Seshadri

2002-01-01T23:59:59.000Z

291

Learning planar ising models  

Science Conference Proceedings (OSTI)

Inference and learning of graphical models are both well-studied problems in statistics and machine learning that have found many applications in science and engineering. However, exact inference is intractable in general graphical models, which suggests the problem of seeking the best approximation to a collection of random variables within some tractable family of graphical models. In this paper, we focus our attention on the class of planar Ising models, for which inference is tractable using techniques of statistical physics [Kac and Ward; Kasteleyn]. Based on these techniques and recent methods for planarity testing and planar embedding [Chrobak and Payne], we propose a simple greedy algorithm for learning the best planar Ising model to approximate an arbitrary collection of binary random variables (possibly from sample data). Given the set of all pairwise correlations among variables, we select a planar graph and optimal planar Ising model defined on this graph to best approximate that set of correlations. We present the results of numerical experiments evaluating the performance of our algorithm.

Johnson, Jason K [Los Alamos National Laboratory; Chertkov, Michael [Los Alamos National Laboratory; Netrapalli, Praneeth [STUDENT UT AUSTIN

2010-11-12T23:59:59.000Z

292

Systems Modeling | ornl.gov  

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

Computational Physics Communication Networks and Technologies Modeling and Simulation Innovative Signal Processing Algorithms Advanced Control Systems Econometrics Engineering Analysis Behavioral Sciences Geographic Information Science and Technology Quantum Information Science Supercomputing and Computation Home | Science & Discovery | Supercomputing and Computation | Research Areas | Systems Modeling SHARE Systems Modeling System modeling is the interdisciplinary study of the use of models to conceptualize and construct systems. A common type of systems modeling is function modeling, with specific techniques such as the functional flow block diagram. These models can be extended using functional decomposition, and can be linked to requirements models for further systems

293

Modeling Global Lightning Distributions in a General Circulation Model  

Science Conference Proceedings (OSTI)

A general circulation model (GCM) is used to model global lightning distributions and frequencies. Both total and cloud-to-ground lightning frequencies are modeled using parameterizations that relate the depth of convective clouds to lightning ...

Colin Price; David Rind

1994-08-01T23:59:59.000Z

294

Generic CSP Performance Model for NREL's System Advisor Model: Preprint  

SciTech Connect

The suite of concentrating solar power (CSP) modeling tools in NREL's System Advisor Model (SAM) includes technology performance models for parabolic troughs, power towers, and dish-Stirling systems. Each model provides the user with unique capabilities that are catered to typical design considerations seen in each technology. Since the scope of the various models is generally limited to common plant configurations, new CSP technologies, component geometries, and subsystem combinations can be difficult to model directly in the existing SAM technology models. To overcome the limitations imposed by representative CSP technology models, NREL has developed a 'Generic Solar System' (GSS) performance model for use in SAM. This paper discusses the formulation and performance considerations included in this model and verifies the model by comparing its results with more detailed models.

Wagner, M. J.; Zhu, G.

2011-08-01T23:59:59.000Z

295

Probit Model Estimation Revisited: Trinomial Models of Household Car Ownership  

E-Print Network (OSTI)

Household Ownership of Car Davidon, W. C. (1959) VariableStudy Report 9: Models of Car Ownership and License Holding.Trinomial Models of Household Car Ownership. Transportation

Bunch, David S.; Kitamura, Ryuichi

1991-01-01T23:59:59.000Z

296

Radmodl Modeling Manual  

SciTech Connect

RADMODL is a set of computer codes that model the transport of material through a network of interconnected compartments. This version of RADMODL is designed to model the transport of radioactive material from either a loss of coolant accident (LOCA) or a fuel handling accident into a set of interconnected compartments and determine the equivalent dose each compartment will see for the duration of the accident. The code is flexible enough to allow modeling of other types of materials and their dilution/dispersion during transport by designing a new set of input files corresponding to the facility layout and the dilution/dispersion factors. This report documents the issuance of the Modeling Manual, originally developed by EGS Corporation and ISSI as volume 1 of the Programmer`s Manual, with the incorporation of minor editorial comments. Though a Modeling Manual in itself is not required for the RADMODL code certification, this manual does contain information that is required for the one of the requirements for code User`s Manual and hence certification.

Murphy, S.L.; Stevens, K.A.; Weister, T.E.

1993-04-01T23:59:59.000Z

297

Linear Solar Models  

E-Print Network (OSTI)

We present a new approach to study the properties of the sun. We consider small variations of the physical and chemical properties of the sun with respect to Standard Solar Model predictions and we linearize the structure equations to relate them to the properties of the solar plasma. By assuming that the (variation of) the present solar composition can be estimated from the (variation of) the nuclear reaction rates and elemental diffusion efficiency in the present sun, we obtain a linear system of ordinary differential equations which can be used to calculate the response of the sun to an arbitrary modification of the input parameters (opacity, cross sections, etc.). This new approach is intended to be a complement to the traditional methods for solar model calculation and allows to investigate in a more efficient and transparent way the role of parameters and assumptions in solar model construction. We verify that these Linear Solar Models recover the predictions of the traditional solar models with an high...

Villante, F L

2009-01-01T23:59:59.000Z

298

Advanced Chemistry Basins Model  

SciTech Connect

The objective of this project is to: (1) Develop a database of additional and better maturity indicators for paleo-heat flow calibration; (2) Develop maturation models capable of predicting the chemical composition of hydrocarbons produced by a specific kerogen as a function of maturity, heating rate, etc.; assemble a compositional kinetic database of representative kerogens; (3) Develop a 4 phase equation of state-flash model that can define the physical properties (viscosity, density, etc.) of the products of kerogen maturation, and phase transitions that occur along secondary migration pathways; (4) Build a conventional basin model and incorporate new maturity indicators and data bases in a user-friendly way; (5) Develop an algorithm which combines the volume change and viscosities of the compositional maturation model to predict the chemistry of the hydrocarbons that will be expelled from the kerogen to the secondary migration pathways; (6) Develop an algorithm that predicts the flow of hydrocarbons along secondary migration pathways, accounts for mixing of miscible hydrocarbon components along the pathway, and calculates the phase fractionation that will occur as the hydrocarbons move upward down the geothermal and fluid pressure gradients in the basin; and (7) Integrate the above components into a functional model implemented on a PC or low cost workstation.

Blanco, Mario; Cathles, Lawrence; Manhardt, Paul; Meulbroek, Peter; Tang, Yongchun

2003-02-13T23:59:59.000Z

299

Supersymmetric leptophilic Higgs model  

SciTech Connect

In the leptophilic model, one Higgs doublet couples to quarks and another couples to leptons. We study the supersymmetric version of this model, concentrating on the tightly constrained Higgs sector, which has four doublets. Constraints from perturbativity, unitarity, and LEP bounds are considered. It is found that the lightest Higgs, h, can have a mass well below 114 GeV, and for masses below 100 GeV will have a substantially enhanced branching ratio into {tau} pairs. For this region of parameter space, traditional production mechanisms (Higgs-strahlung, W fusion, and gluon fusion) are suppressed, but it may be produced in the decay of heavier particles. The second lightest Higgs has a mass of approximately 110 GeV for virtually all of parameter space, with standard model couplings, and thus an increase of a few GeV in the current lower bound on the standard model Higgs mass would rule out the model. The two heavier Higgs are both gauge phobic, one decays almost entirely into bb and can be produced via gluon fusion while the other decays almost entirely into {tau}{sup +}{tau}{sup -} but cannot be easily produced.

Marshall, Gardner; Sher, Marc [Particle Theory Group, Department of Physics, College of William and Mary, Williamsburg, Virginia 23187 (United States)

2011-01-01T23:59:59.000Z

300

Coreference-inspired coherence modeling  

Science Conference Proceedings (OSTI)

Research on coreference resolution and summarization has modeled the way entities are realized as concrete phrases in discourse. In particular there exist models of the noun phrase syntax used for discourse-new versus discourse-old referents, and models ...

Micha Elsner; Eugene Charniak

2008-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Climate Modeling with Spectral Elements  

Science Conference Proceedings (OSTI)

As an effort toward improving climate modelcomponent performance and accuracy, an atmospheric-component climate model has been developed, entitled the Spectral Element Atmospheric Climate Model and denoted as CAM_SEM. CAM_SEM includes a unique ...

Ferdinand Baer; Houjun Wang; Joseph J. Tribbia; Aim Fournier

2006-12-01T23:59:59.000Z

302

Performance of NMC's Regional Models  

Science Conference Proceedings (OSTI)

This paper details the performance characteristics of the two regional dynamical models used at the National Meteorological Center to forecast for North America. Strengths and weaknesses of these modelsthe limited-area fine-mesh (LFM) model and ...

Norman W. Junker; James E. Hoke; Richard H. Grumm

1989-09-01T23:59:59.000Z

303

Ozone Modeling Using Neural Networks  

Science Conference Proceedings (OSTI)

Ozone models for the city of Tulsa were developed using neural network modeling techniques. The neural models were developed using meteorological data from the Oklahoma Mesonet and ozone, nitric oxide, and nitrogen dioxide (NO2) data from ...

Ramesh Narasimhan; Joleen Keller; Ganesh Subramaniam; Eric Raasch; Brandon Croley; Kathleen Duncan; William T. Potter

2000-03-01T23:59:59.000Z

304

Computing and fabricating multilayer models  

E-Print Network (OSTI)

We present a method for automatically converting a digital 3D model into a multilayer model: a parallel stack of high-resolution 2D images embedded within a semi-transparent medium. Multilayer models can be produced quickly ...

Holroyd, Michael

305

The Geometry of Model Error  

Science Conference Proceedings (OSTI)

This paper investigates the nature of model error in complex deterministic nonlinear systems such as weather forecasting models. Forecasting systems incorporate two components, a forecast model and a data assimilation method. The latter projects ...

Kevin Judd; Carolyn A. Reynolds; Thomas E. Rosmond; Leonard A. Smith

2008-06-01T23:59:59.000Z

306

Piecewise Linear Modeling and Analysis  

Science Conference Proceedings (OSTI)

From the Publisher:Piecewise Linear Modeling and Analysis explains in detail all possible model descriptions to efficiently store piecewise linear functions starting with the Chua descriptions. Detailed explanation on how the model parameter can be obtained ...

Domine M. W. Leenaerts; Wim M. Van Bokhoven

1998-07-01T23:59:59.000Z

307

Standard Model Holdout INSIDE  

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

May 2, 1997 May 2, 1997 Number 9 f Searching for the Standard Model Holdout INSIDE 2 University Close-Up: Pisa 5 Facilities Managers' Meeting 6 Birth of a Bison Photo by Reidar Hahn An international collaboration at Fermilab sets out to observe the elusive tau neutrino. by Donald Sena, Office of Public Affairs When two collaborations announced the discovery of the top quark at Fermi National Accelerator Laboratory in 1995, many news outlets erroneously reported that the last remaining piece of the current theory of matter and energy, known as the Standard Model, had been found. What reporters and even a few physicists forgot is that the elusive tau neutrino, while firmly entrenched in the Standard Model, has never been directly observed. In the early 1980s, there was one minor attempt to find the tau neutrino

308

Ocean General Circulation Models  

SciTech Connect

1. Definition of Subject The purpose of this text is to provide an introduction to aspects of oceanic general circulation models (OGCMs), an important component of Climate System or Earth System Model (ESM). The role of the ocean in ESMs is described in Chapter XX (EDITOR: PLEASE FIND THE COUPLED CLIMATE or EARTH SYSTEM MODELING CHAPTERS). The emerging need for understanding the Earths climate system and especially projecting its future evolution has encouraged scientists to explore the dynamical, physical, and biogeochemical processes in the ocean. Understanding the role of these processes in the climate system is an interesting and challenging scientific subject. For example, a research question how much extra heat or CO2 generated by anthropogenic activities can be stored in the deep ocean is not only scientifically interesting but also important in projecting future climate of the earth. Thus, OGCMs have been developed and applied to investigate the various oceanic processes and their role in the climate system.

Yoon, Jin-Ho; Ma, Po-Lun

2012-09-30T23:59:59.000Z

309

Parametric Explosion Spectral Model  

Science Conference Proceedings (OSTI)

Small underground nuclear explosions need to be confidently detected, identified, and characterized in regions of the world where they have never before occurred. We develop a parametric model of the nuclear explosion seismic source spectrum derived from regional phases that is compatible with earthquake-based geometrical spreading and attenuation. Earthquake spectra are fit with a generalized version of the Brune spectrum, which is a three-parameter model that describes the long-period level, corner-frequency, and spectral slope at high-frequencies. Explosion spectra can be fit with similar spectral models whose parameters are then correlated with near-source geology and containment conditions. We observe a correlation of high gas-porosity (low-strength) with increased spectral slope. The relationship between the parametric equations and the geologic and containment conditions will assist in our physical understanding of the nuclear explosion source.

Ford, S R; Walter, W R

2012-01-19T23:59:59.000Z

310

Research Highlight  

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

ARM M-PACE Data Used to Evaluate and Improve Arctic Mixed-Phase Clouds ARM M-PACE Data Used to Evaluate and Improve Arctic Mixed-Phase Clouds Simulated in Climate Models Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Xie, S, J Boyle, SA Klein, X Liu, and S Ghan. 2008. "Simulations of Arctic mixed-phase clouds in forecasts with CAM3 and AM2 for M-PACE." Journal of Geophysical Research 113, D04211, doi:10.1029/2007JD009225. Time-height cross sections of active remote sensing cloud layer (ARSCL) cloud frequency (a) and modeled cloud fraction (b) CAM3, (c) AM2, and (d) CAM3LIU at Barrow during M-PACE. The unit is %. Liquid fraction as a function of cloud height. (a) UND citation data, (b)

311

Numerical Modeling | Open Energy Information  

Open Energy Info (EERE)

Numerical Modeling Numerical Modeling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Numerical Modeling Details Activities (8) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Modeling Techniques Parent Exploration Technique: Modeling Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Stress fields and magnitudes Hydrological: Visualization and prediction of the flow patterns and characteristics of geothermal fluids Thermal: Thermal conduction and convection patterns in the subsurface Dictionary.png Numerical Modeling: A computer model that is designed to simulate and reproduce the mechanisms of a particular system. Other definitions:Wikipedia Reegle

312

WEC Model Development at Sandia  

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

2C 2C Marine and Hydrokinetic Instrumentation, Measurement & Computer Modeling Workshop - Broomfield, CO July 9 th , 2012 Wave Energy Converter Model Development at Sandia Outline  Overview of SNL's WEC Modeling Activities * Wave Energy Development Roadmap * MHK Reference Models - Diana Bull * WEC Model Tool Development - Kelley Ruehl Reference Models and SNL Array Modeling presented in next session Wave Energy Development Roadmap Overall Goal and Motivation  Goal: Develop a suggested path for WEC development from design to commercialization.  Motivation: Guide industry towards successful design optimizations, prototype deployments, and utility scale commercialization by providing a roadmap incorporating numerical modeling and experimentation.

313

Transport Properties for Combustion Modeling  

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

Transport Properties for Combustion Modeling Title Transport Properties for Combustion Modeling Publication Type Journal Article Year of Publication 2011 Authors Brown, Nancy J.,...

314

Introduction to Materials Modelling - TMS  

Science Conference Proceedings (OSTI)

Oct 23, 2006... simply described by modeling, even if it involves fundamental ideas ... least Handbook of Materials Modelling (2005) by Sidney Yip (editor).

315

Business models of information aggregators  

E-Print Network (OSTI)

This thesis identifies the specific characteristics of information aggregators, and proposes nine business models appropriate for information aggregators. These nine models are: advertising, brokerage, subscription, ...

Hu, Jiangxia, S.M. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

316

GIS-Based Infrastructure Modeling  

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

GIS-Based Infrastructure Modeling Hydrogen Scenario Meeting August 9-10, 2006 Keith Parks, NREL GIS-Based Infrastructure Modeling * Station Analysis - Selection Criteria - Los...

317

High Performance Computing: Modeling & Simulation  

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

High Performance Computing: Modeling & Simulation High Performance Computing: Modeling & Simulation Express Licensing Adaptive Real-Time Methodology for Optimizing Energy-Efficient...

318

Improved MK42 Melting Model  

Science Conference Proceedings (OSTI)

An improved Mark 42 melting model has been defined for establishing confinement protection limits (CPLs). This report describes the new melting model and its application in computing CPLs.

Tudor, A.A.

2001-09-19T23:59:59.000Z

319

Macro-System Model Overview  

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

Such a macro-system model is critical to assessing the transition from the existing energy infrastructure to one including hydrogen. Individual models spanning a wide range of...

320

Multiphase Flow Modeling Research  

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

Science Science Chris Guenther, Director Computational Science Division RUA Spring Meeting, Morgantown, WV March 2013 2 NETL's Multiphase Flow Science Team * The Multiphase Flow Science Team develops physics-based simulation models to conduct applied scientific research. - Development of new theory - Extensive on-site and collaborative V&V efforts and testing - Engages in technology transfer - Applies the models to industrial scale problems. 3 Why is Multiphase Flow Science Needed? * Industry is increasingly relying on multiphase technologies to produce clean and affordable energy with carbon capture. * Unfortunately, the presence of a solid phase reduces the operating capacity of a typical energy device from its original design on average by 40% [1].

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Travel Demand Modeling  

SciTech Connect

This chapter describes the principal types of both passenger and freight demand models in use today, providing a brief history of model development supported by references to a number of popular texts on the subject, and directing the reader to papers covering some of the more recent technical developments in the area. Over the past half century a variety of methods have been used to estimate and forecast travel demands, drawing concepts from economic/utility maximization theory, transportation system optimization and spatial interaction theory, using and often combining solution techniques as varied as Box-Jenkins methods, non-linear multivariate regression, non-linear mathematical programming, and agent-based microsimulation.

Southworth, Frank [ORNL; Garrow, Dr. Laurie [Georgia Institute of Technology

2011-01-01T23:59:59.000Z

322

Three dimensional magnetotelluric modeling  

DOE Green Energy (OSTI)

A three-dimensional (3D) volume integral equation solution was refined and adapted to magnetotelluric (MT) modeling. The refinement, incorporating an integro-difference scheme, increases the accuracy somewhat without increasing the computer time. Utilizing the two symmetry planes for a plane wave source decreases the computer storage by a factor of 8 and greatly reduces the computer time. Convergence checks and comparisons with other solutions show that our results are valid. Because of space charges at resistivity boundaries, low-frequency 3D responses are much different from 1D and 2D responses. Hence 3D models are required for interpreting MT data in the complex geothermal environment.

Hohmann, G.W.; Ting, S.C.

1978-07-01T23:59:59.000Z

323

DRI Model of the U.S. Economy -- Model Documentation:  

Reports and Publications (EIA)

Provides documentation on Data Resources, Inc., DRI Model of the U.S. Economy and the DRI Personal Computer Input/Output Model. It also describes the theoretical basis, structure and functions of both DRI models; and contains brief descriptions of the models and their equations.

Information Center

1993-12-01T23:59:59.000Z

324

Map algebra and model algebra for integrated model building  

Science Conference Proceedings (OSTI)

Computer models are important tools for the assessment of environmental systems. A seamless workflow of construction and coupling of model components is essential for environmental scientists. However, currently available software packages are often ... Keywords: Biomass-harvest model, Component-based modelling, PCRaster, Python, Spatio-temporal simulation

Oliver Schmitz, Derek Karssenberg, Kor De Jong, Jean-Luc De Kok, Steven M. De Jong

2013-10-01T23:59:59.000Z

325

Scalable formal machine models  

Science Conference Proceedings (OSTI)

In the past few years, we have seen machine-checked proofs of relatively large software systems, including compilers and micro-kernels. But like all formal arguments, the assurance gained by these mechanical proofs is only as good as the models we construct ...

Greg Morrisett

2012-12-01T23:59:59.000Z

326

Modeling 18 Water Variability  

Science Conference Proceedings (OSTI)

Variability of 18 Water formation is investigated with an isopycnic-coordinate model of the North Atlantic. A 30-year spinup integration is used as a control experiment in which the upper water column in the Sargasso Sea is shown to be in ...

Robert Marsh; Adrian L. New

1996-06-01T23:59:59.000Z

327

Ecotoxicological effects extrapolation models  

SciTech Connect

One of the central problems of ecological risk assessment is modeling the relationship between test endpoints (numerical summaries of the results of toxicity tests) and assessment endpoints (formal expressions of the properties of the environment that are to be protected). For example, one may wish to estimate the reduction in species richness of fishes in a stream reach exposed to an effluent and have only a fathead minnow 96 hr LC50 as an effects metric. The problem is to extrapolate from what is known (the fathead minnow LC50) to what matters to the decision maker, the loss of fish species. Models used for this purpose may be termed Effects Extrapolation Models (EEMs) or Activity-Activity Relationships (AARs), by analogy to Structure-Activity Relationships (SARs). These models have been previously reviewed in Ch. 7 and 9 of and by an OECD workshop. This paper updates those reviews and attempts to further clarify the issues involved in the development and use of EEMs. Although there is some overlap, this paper does not repeat those reviews and the reader is referred to the previous reviews for a more complete historical perspective, and for treatment of additional extrapolation issues.

Suter, G.W. II

1996-09-01T23:59:59.000Z

328

Modeling language variability  

Science Conference Proceedings (OSTI)

A systematic way of defining variants of a modeling language is useful for adapting the language to domain or project specific needs. Variants can be obtained by adapting the syntax or semantics of the language. In this paper, we take a formal approach ...

Hans Grnniger; Bernhard Rumpe

2010-03-01T23:59:59.000Z

329

Astrophysical Models, and  

E-Print Network (OSTI)

Astrophysical Plasmas: Codes, Models, and Observations (Mexico City, 25­29 October 1999) Franco Rev diagnostic ratios. Examples our current measurements given. Key Words: ATOMIC DATA ATOMIC PROCESSES LINE: FOR that correct atomic used, accurate line positions, excitation recombination cross sections, and radiative rates

Wargelin, Bradford J.

330

Modelling geomagnetic activity data  

Science Conference Proceedings (OSTI)

Strong geomagnetic activity is a hazard to electronics and electric power facilities. Assessment of the actual geomagnetic activity level from local magnetometer monitoring therefore is of importance for risk assessment but also in earth sciences and ... Keywords: geomagnetism, neuro fuzzy modelling, self organizing map, signal processing, wavelets

Ernst D. Schmitter

2008-01-01T23:59:59.000Z

331

Decision Superiority Process Model  

Science Conference Proceedings (OSTI)

Decision superiority is achieved not just by acquiring and assessing the right information, but by translating it into actionable knowledge that can be exploited in the decision making process. Achieving decision superiority is necessary, because the ... Keywords: context-goal alternatives, decision making process, decision superiority, process model

Barbara Sorensen; Azad M. Madni; Carla C. Madni

2008-12-01T23:59:59.000Z

332

MODEL CONSERVATION STANDARD INTRODUCTION  

E-Print Network (OSTI)

standards and surcharge methodology. 2 The term "system cost" means an estimate of all direct costs and transmission to the consumer and, among other factors, waste disposal costs, end-of-cycle costs, and fuel costs. SURCHARGE RECOMMENDATION The Council does not recommend that the model conservation standards be subject

333

Modeling the earth system  

Science Conference Proceedings (OSTI)

The 1990 Global Change Institute (GCI) on Earth System Modeling is the third of a series organized by the Office for Interdisciplinary Earth Studies to look in depth at particular issues critical to developing a better understanding of the earth system. The 1990 GCI on Earth System Modeling was organized around three themes: defining critical gaps in the knowledge of the earth system, developing simplified working models, and validating comprehensive system models. This book is divided into three sections that reflect these themes. Each section begins with a set of background papers offering a brief tutorial on the subject, followed by working group reports developed during the institute. These reports summarize the joint ideas and recommendations of the participants and bring to bear the interdisciplinary perspective that imbued the institute. Since the conclusion of the 1990 Global Change Institute, research programs, nationally and internationally, have moved forward to implement a number of the recommendations made at the institute, and many of the participants have maintained collegial interactions to develop research projects addressing the needs identified during the two weeks in Snowmass.

Ojima, D. [ed.

1992-12-31T23:59:59.000Z

334

Morphable Surface Models  

Science Conference Proceedings (OSTI)

We describe a novel automatic technique for finding a dense correspondence between a pair of n-dimensional surfaces with arbitrary topologies. This method employs a different formulation than previous correspondence algorithms (such as optical ... Keywords: computer vision, correspondence, learning, morphable models, surface matching

Christian R. Shelton

2000-06-01T23:59:59.000Z

335

Performance modeling of Beamlet  

SciTech Connect

Detailed modeling of beam propagation in Beamlet has been made to predict system performance. New software allows extensive use of optical component characteristics. This inclusion of real optical component characteristics has resulted in close agreement between calculated and measured beam distributions.

Auerbach, J.M.; Lawson, J.K.; Rotter, M.D.; Sacks, R.A.; Van Wonterghem, B.W.; Williams, W.H.

1995-06-27T23:59:59.000Z

336

Programming Models Facilitators  

E-Print Network (OSTI)

to prioritize and support activities · Focus is near term, while keeping an eye toward to long term (avoid box-scale (accelerator-based) hybrid computer systems in the near term and in the future. · Identify the types costs, system modeling 5 #12;REVIEW OF GRADING CRITERIA 6 Urgency Duration Responsive Applicability

337

Integration of EBS Models with Generic Disposal System Models | Department  

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

Integration of EBS Models with Generic Disposal System Models Integration of EBS Models with Generic Disposal System Models Integration of EBS Models with Generic Disposal System Models This report summarizes research activities on engineered barrier system (EBS) model integration with the generic disposal system model (GDSM), and used fuel degradation and radionuclide mobilization (RM) in support of the EBS evaluation and tool development within the Used Fuel Disposition campaign. This report addresses: predictive model capability for used nuclear fuel degradation based on electrochemical and thermodynamic principles, radiolysis model to evaluate the U(VI)-H2O-CO2 system, steps towards the evaluation of uranium alteration products, discussion of instant release fraction (IRF) of radionuclides from the nuclear fuel, and

338

Integration of EBS Models with Generic Disposal System Models | Department  

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

Integration of EBS Models with Generic Disposal System Models Integration of EBS Models with Generic Disposal System Models Integration of EBS Models with Generic Disposal System Models This report summarizes research activities on engineered barrier system (EBS) model integration with the generic disposal system model (GDSM), and used fuel degradation and radionuclide mobilization (RM) in support of the EBS evaluation and tool development within the Used Fuel Disposition campaign. This report addresses: predictive model capability for used nuclear fuel degradation based on electrochemical and thermodynamic principles, radiolysis model to evaluate the U(VI)-H2O-CO2 system, steps towards the evaluation of uranium alteration products, discussion of instant release fraction (IRF) of radionuclides from the nuclear fuel, and

339

TDE Ecosystem Model Intercomparison Data Archive: Model Descriptions  

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

Model Descriptions Model Descriptions BGC++ BIOME-BGC CANOAK EALCO ecosys INTRASTAND LaRS LINKAGES v2.1 LoTEC MAESTRA NuCM PnET II SPA Literature Cited A total of 13 models were used in this study covering a range of temporal scales, spatial complexity, and mechanistic detail (Figure 1). Eight of the models (8) used an hourly time step, four models used a daily time step, and only one model used a monthly time step (i.e., PnET-II). Most models provided estimates for both stand carbon and water budgets, but other were limited to either the carbon (MAESTRA) or water (LINKAGES and NuCM) budgets. The most mechanistically complex models (ecosys, CLASS, LaRS, and CANOAK) also used a complete energy balance. A brief description of each of the models is provided below. BGC++ The BGC++ model (Hunt et al. 1999) simulates carbon, nitrogen, and

340

Short-term hydroelectric generation model. Model documentation report  

DOE Green Energy (OSTI)

The purpose of this report is to define the objectives of the Energy Information Administration`s (EIA) Short-Term Hydroelectric Generation Model (STHGM), describe its basic approach, and to provide details on the model structure. This report is intended as a reference document for model analysts, users, and the general public. Documentation of the model is in accordance with the EIA`s legal obligation to provide adequate documentation in support of its models.

NONE

1996-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

A primer on model checking  

Science Conference Proceedings (OSTI)

Model checking is a widely used formal method for the verification of concurrent programs. This article starts with an introduction to the concepts of model checking, followed by a description of Spin, one of the foremost model checkers. Software tools ... Keywords: Erigone, Spin, concurrent programming, model checking, verification

Mordechai (Moti) Ben-Ari

2010-03-01T23:59:59.000Z

342

A taxonomy of model transformation  

E-Print Network (OSTI)

This report summarises the results of the discussions of a working group on model transformation of the Dagstuhl Seminar on Language Engineering for Model-Driven Software Development. The main contribution is a taxonomy of model transformation. This taxonomy can be used to help developers in deciding which model transformation approach is best suited to deal with a particular problem.

Tom Mens; Krzysztof Czarnecki; Pieter Van Gorp

2005-01-01T23:59:59.000Z

343

Generalization of Lambert's reflectance model  

Science Conference Proceedings (OSTI)

Lambert's model for body reflection is widely used in computer graphics. It is used extensively by rendering techniques such as radiosity and ray tracing. For several real-world objects, however, Lambert's model can prove to be a very inaccurate approximation ... Keywords: BRDF, Lambert's model, moon reflectance, reflection models, rough surfaces

Michael Oren; Shree K. Nayar

1994-07-01T23:59:59.000Z

344

Conceptual Model | Open Energy Information  

Open Energy Info (EERE)

Conceptual Model Conceptual Model Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Conceptual Model Details Activities (17) Areas (4) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Modeling Techniques Parent Exploration Technique: Modeling Techniques Information Provided by Technique Lithology: Rock types, rock chemistry, stratigraphic layer organization Stratigraphic/Structural: Location and shape of permeable and non-permeable structures, faults, fracture patterns Hydrological: Hydrothermal fluid flow characteristics, up-flow patterns Thermal: Temperature and pressure extrapolation throughout reservoir, heat source characteristics Dictionary.png Conceptual Model:

345

2002 EIA Models Directory - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Levelized Nuclear Fuel Cycle Cost Model (LNFCC-PC) Propane Market Model (PPMM) Short-Term Hydroelectric Generation Model (STHGM)

346

Challenges and Opportunities for Modeling and Simulation  

Science Conference Proceedings (OSTI)

... 8 generic model --> NEGF ... nanowire PV nanowire ... Includes realistic tip sample interaction models Sophisticated cantilever dynamics models ...

2011-10-03T23:59:59.000Z

347

mwrD1200095 773..797  

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

Surface Surface Flux Parameterizations with Long-Term ARM Observations GANG LIU Brookhaven National Laboratory, Upton, New York, and School of Atmospheric Sciences, Nanjing University, Nanjing, China YANGANG LIU AND SATOSHI ENDO Brookhaven National Laboratory, Upton, New York (Manuscript received 28 March 2012, in final form 6 September 2012) ABSTRACT Surface momentum, sensible heat, and latent heat fluxes are critical for atmospheric processes such as clouds and precipitation, and are parameterized in a variety of models ranging from cloud-resolving models to large- scale weather and climate models. However, direct evaluation of the parameterization schemes for these surface fluxes is rare due to limited observations. This study takes advantage of the long-term observations of surface fluxes collected at the Southern Great Plains site by the Department of Energy Atmospheric

348

Research Highlight  

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

General Formulation for Representing Cloud-to-Rain Transition in General Formulation for Representing Cloud-to-Rain Transition in Atmospheric Models Submitter: Liu, Y., Brookhaven National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Aerosol, Cloud Modeling, Cloud Properties Journal Reference: Liu, Y., P. H. Daum, R. McGraw, M. Miller, and S. Niu, 2007: Theoretical formulation for autoconversion rate of cloud droplet concentration. Geophys. Res. Lett., 34, L116821, doi:10.1029/2007GL030389 Figure 1. The typical drop radius r* as a function of the volume-mean radius r3 derived from the new theoretical formulation. Note that a constant r* corresponds to the commonly used assumption that the autoconversion rate for droplet concentration is linearly proportional to

349

Friday, august 10, 2012 LittLejohn CoLiseum  

E-Print Network (OSTI)

Energy Management for Microgrids Advisor: Dr. E Makram Environmental Engineering and Science Xiaoling Liu

Stuart, Steven J.

350

Remote Sensing of Mobile Source Air Pollutant Emissions: Variability and Uncertainty in On-Road Emissions  

E-Print Network (OSTI)

Catalyst Regeneration (CCR) Catalytic Reforming Processes Advisor: Professor Y.A. Liu Gregorio Velez

Frey, H. Christopher

351

LLNL Chemical Kinetics Modeling Group  

DOE Green Energy (OSTI)

The LLNL chemical kinetics modeling group has been responsible for much progress in the development of chemical kinetic models for practical fuels. The group began its work in the early 1970s, developing chemical kinetic models for methane, ethane, ethanol and halogenated inhibitors. Most recently, it has been developing chemical kinetic models for large n-alkanes, cycloalkanes, hexenes, and large methyl esters. These component models are needed to represent gasoline, diesel, jet, and oil-sand-derived fuels.

Pitz, W J; Westbrook, C K; Mehl, M; Herbinet, O; Curran, H J; Silke, E J

2008-09-24T23:59:59.000Z

352

Model WC-18000  

Office of Legacy Management (LM)

Model WC-18000 Model WC-18000 by NuPac . VOLUME REDUCTION means ravings in transportation and burial. l AIR FILTRATION SYSTEM l 18000 lb. COMPACTION 0 ELECTRO-MECHANICAL OPERATION l OVER 20 UNITS IN OPERATION NUCLEAR PACKAGING INC. 815 South 28th St. Tacoma, Washington 98409 (2061572.7775 or 838-1243 See w at Booth 58 HP Society Annusl Meetllng isotope ; & radiation COMPLIANCE Radiography firm loses license Oflicial ilc,i

353

WATER DIVERSION MODEL  

Science Conference Proceedings (OSTI)

The distribution of seepage in the proposed repository will be highly variable due in part to variations in the spatial distribution of percolations. The performance of the drip shield and the backfill system may divert the water flux around the waste packages to the invert. Diversion will occur along the drift surface, within the backfill, at the drip shield, and at the Waste Package (WP) surface, even after the drip shield and WP have been breached by corrosion. The purpose and objective of this Analysis and Modeling Report (AMR) are to develop a conceptual model and constitutive properties for bounding the volume and rate of seepage water that flows around the drip shield (CRWMS M&O 1999c). This analysis model is to be compatible with the selected repository conceptual design (Wilkins and Heath, 1999) and will be used to evaluate the performance of the Engineered Barrier System (EBS), and to provide input to the EBS Water Distribution and Removal Model. This model supports the Engineered Barrier System (EBS) postclosure performance assessment for the Site Recommendation (SR). This document characterizes the hydrological constitutive properties of the backfill and invert materials (Section 6.2) and a third material that represents a mixture of the two. These include the Overton Sand which is selected as a backfill (Section 5.2), crushed tuff which is selected as the invert (Section 5.1), and a combined material (Sections 5.9 and 5.10) which has retention and hydraulic conductivity properties intermediate to the selected materials for the backfill and the invert. The properties include the grain size distribution, the dry bulk density and porosity, the moisture retention, the intrinsic permeability, the relative permeability, and the material thermal properties. The van Genuchten relationships with curve fit parameters are used to define the basic retention relationship of moisture potential to volumetric moisture content, and the basic relationship of unsaturated hydraulic conductivity to volumetric moisture content. The van Genuchten curve fit parameters were determined from a least squares fit to the measured Unsaturated Flow Apparatus (UFA) data for Overton Sand backfill and the crushed tuff invert. These constitutive properties are direct inputs to the Non-isothermal Unsaturated saturated Flow and Transport (NUFT) codes and characterize the constitutive properties for these materials within the Engineered Barrier System (EBS). Models are currently being developed for pitting and general corrosion of the drip shield. This AMR develops flow analysis methods (Section 6.2.4) to bound the diversion performance of the drip shield at different stages of degradation by corrosion. Further, this report also develops flow analysis methods for the conceptual model under the assumption of negligible corrosion of the drip shield (Section 5.12) as indicated by design studies (TBV-3808). The conceptual model can be used to bound the diversion performance of the drip shield. In addition, this report provides a simple bounding calculation for assessing flow through apertures within the drip shield (Section 5.4 to 5.8). The bounding calculation uses several assumptions (Sections 5.4 to 5.8). The flow relationship presented in Section 6.2.5 can be used in conjunction with a NUFT analysis of moisture potential around the DS to bound the flow through the drip shield. As an alternative to performing NUFT calculations to assess the partitioning of flow, an analysis approach based upon a closed-form analytical solution at isothermal temperature is developed in Section 6.3.

J.B. Case

1999-12-21T23:59:59.000Z

354

Modelling the chemical evolution  

E-Print Network (OSTI)

Advanced observational facilities allow to trace back the chemical evolution of the Universe, on the one hand, from local objects of different ages and, secondly, by direct observations of redshifted objects. The chemical enrichment serves as one of the cornerstones of cosmological evolution. In order to understand this chemical evolution in morphologically different astrophysical objects models are constructed based on analytical descriptions or numerical methods. For the comparison of their chemical issues, as there are element abundances, gradients, and ratios, with observations not only the present-day values are used but also their temporal evolution from the first era of metal enrichment. Here we will provide some insight into basics of chemical evolution models, highlight advancements, and discuss a few applications.

Hensler, Gerhard

2010-01-01T23:59:59.000Z

355

The Ouroboros Model  

E-Print Network (OSTI)

At the core of the Ouroboros Model lies a self-referential recursive process with alternating phases of data acquisition and evaluation. Memory entries are organized in schemata. Activation at a time of part of a schema biases the whole structure and, in particular, missing features, thus triggering expectations. An iterative recursive monitor process termed 'consumption analysis' is then checking how well such expectations fit with successive activations. A measure for the goodness of fit, "emotion", provides feedback as (self-) monitoring signal. Contradictions between anticipations based on previous experience and actual current data are highlighted as well as minor gaps and deficits. The basic algorithm can be applied to goal directed movements as well as to abstract rational reasoning when weighing evidence for and against some remote theories. A sketch is provided how the Ouroboros Model can shed light on rather different characteristics of human behavior including learning and meta-learning. Partial implementations proved effective in dedicated safety systems.

Knud Thomsen

2008-05-19T23:59:59.000Z

356

SDI CFD MODELING ANALYSIS  

SciTech Connect

The Savannah River Remediation (SRR) Organization requested that Savannah River National Laboratory (SRNL) develop a Computational Fluid Dynamics (CFD) method to mix and blend the miscible contents of the blend tanks to ensure the contents are properly blended before they are transferred from the blend tank; such as, Tank 50H, to the Salt Waste Processing Facility (SWPF) feed tank. The work described here consists of two modeling areas. They are the mixing modeling analysis during miscible liquid blending operation, and the flow pattern analysis during transfer operation of the blended liquid. The transient CFD governing equations consisting of three momentum equations, one mass balance, two turbulence transport equations for kinetic energy and dissipation rate, and one species transport were solved by an iterative technique until the species concentrations of tank fluid were in equilibrium. The steady-state flow solutions for the entire tank fluid were used for flow pattern analysis, for velocity scaling analysis, and the initial conditions for transient blending calculations. A series of the modeling calculations were performed to estimate the blending times for various jet flow conditions, and to investigate the impact of the cooling coils on the blending time of the tank contents. The modeling results were benchmarked against the pilot scale test results. All of the flow and mixing models were performed with the nozzles installed at the mid-elevation, and parallel to the tank wall. From the CFD modeling calculations, the main results are summarized as follows: (1) The benchmark analyses for the CFD flow velocity and blending models demonstrate their consistency with Engineering Development Laboratory (EDL) and literature test results in terms of local velocity measurements and experimental observations. Thus, an application of the established criterion to SRS full scale tank will provide a better, physically-based estimate of the required mixing time, and elevation of transfer pump for minimum sludge disturbance. (2) An empirical equation for a tank with no cooling coils agrees reasonably with the current modeling results for the dual jet. (3) From the sensitivity study of the cooling coils, it was found that the tank mixing time for the coiled tank was about two times longer than that of the tank fluid with no coils under the 1/10th scale, while the coiled tank required only 50% longer than the one without coils under the full scale Tank 50H. In addition, the time difference is reduced when the pumping U{sub o}d{sub o} value is increased for a given tank. (4) The blending time for T-shape dual jet pump is about 20% longer than that of 15{sup o} upward V-shape pump under the 1/10th pilot-scale tank, while the time difference between the two pumps is about 12% for the full-scale Tank 50H. These results are consistent with the literature information. (5) A transfer pump with a solid-plate suction screen operating at 130 gpm can be located 9.5 inches above settled sludge for 2 in screen height in a 85 ft waste tank without disturbing any sludge. Detailed results are summarized in Table 13. Final pump performance calculations were made by using the established CW pump design, and operating conditions to satisfy the two requirements of minimum sludge disturbance, and adequate blending of tank contents. The final calculation results show that the blending times for the coiled and uncoiled tanks coupled with the CW pump design are 159 and 83 minutes, respectively. All the results are provided in Table 16.

Lee, S.

2011-05-05T23:59:59.000Z

357

Fast Simulation and Modeling  

Science Conference Proceedings (OSTI)

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

2007-12-19T23:59:59.000Z

358

Utility Solar Business Models  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) and the Solar Electric Power Association (SEPA) are conducting an ongoing joint research effort, initiated in 2011, to define, track, and evaluate the expanding range of regulated utility solar energy acquisition activities. This report provides a high-level overview of the conceptual framework by which EPRI-SEPA are classifying regulated utility solar business models (USBMs) in the United States. It then provides five case studies detailing existing ...

2012-12-31T23:59:59.000Z

359

Utility Solar Business Models  

Science Conference Proceedings (OSTI)

Many utilities are initiating business plans that enable them to play a more integral role in the solar power value chain. This report summarizes research completed to identify and track utility solar business models (USBMs) in the United States. EPRI and the Solar Electric Power Association (SEPA) are conducting an ongoing joint research effort to evaluate the expanding range of utility activities in acquiring solar energy, including photovoltaic (PV) asset ownership. Throughout 2011, USBMs have been ca...

2011-11-21T23:59:59.000Z

360

Radiolysis Process Model  

SciTech Connect

Assessing the performance of spent (used) nuclear fuel in geological repository requires quantification of time-dependent phenomena that may influence its behavior on a time-scale up to millions of years. A high-level waste repository environment will be a dynamic redox system because of the time-dependent generation of radiolytic oxidants and reductants and the corrosion of Fe-bearing canister materials. One major difference between used fuel and natural analogues, including unirradiated UO2, is the intense radiolytic field. The radiation emitted by used fuel can produce radiolysis products in the presence of water vapor or a thin-film of water (including OH and H radicals, O2-, eaq, H2O2, H2, and O2) that may increase the waste form degradation rate and change radionuclide behavior. H2O2 is the dominant oxidant for spent nuclear fuel in an O2 depleted water environment, the most sensitive parameters have been identified with respect to predictions of a radiolysis model under typical conditions. As compared with the full model with about 100 reactions it was found that only 30-40 of the reactions are required to determine [H2O2] to one part in 105 and to preserve most of the predictions for major species. This allows a systematic approach for model simplification and offers guidance in designing experiments for validation.

Buck, Edgar C.; Wittman, Richard S.; Skomurski, Frances N.; Cantrell, Kirk J.; McNamara, Bruce K.; Soderquist, Chuck Z.

2012-07-17T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Darwinian Model Building  

SciTech Connect

We present a way to generate heuristic mathematical models based on the Darwinian principles of variation and selection in a pool of individuals over many generations. Each individual has a genotype (the hereditary properties) and a phenotype (the expression of these properties in the environment). Variation is achieved by cross-over and mutation operations on the genotype which consists in the present case of a single chromosome. The genotypes 'live' in the environment of the data. Nested Sampling is used to optimize the free parameters of the models given the data, thus giving rise to the phenotypes. Selection is based on the phenotypes.The evidences which naturally follow from the Nested Sampling Algorithm are used in a second level of Nested Sampling to find increasingly better models.The data in this paper originate from the Leiden Cytology and Pathology Laboratory (LCPL), which screens pap smears for cervical cancer. We have data for 1750 women who on average underwent 5 tests each. The data on individual women are treated as a small time series. We will try to estimate the next value of the prime cancer indicator from previous tests of the same woman.

Kester, Do [SRON Netherlands Institute for Space Research, Landleven 12, 9747 AD Groningen (Netherlands); Bontekoe, Romke [Bontekoe Research, Rooseveltstraat 4d, 2321 BM Leiden (Netherlands)

2011-03-14T23:59:59.000Z

362

Modeling for Airborne Contamination  

SciTech Connect

The objective of Modeling for Airborne Contamination (referred to from now on as ''this report'') is to provide a documented methodology, along with supporting information, for estimating the release, transport, and assessment of dose to workers from airborne radioactive contaminants within the Monitored Geologic Repository (MGR) subsurface during the pre-closure period. Specifically, this report provides engineers and scientists with methodologies for estimating how concentrations of contaminants might be distributed in the air and on the drift surfaces if released from waste packages inside the repository. This report also provides dose conversion factors for inhalation, air submersion, and ground exposure pathways used to derive doses to potentially exposed subsurface workers. The scope of this report is limited to radiological contaminants (particulate, volatile and gaseous) resulting from waste package leaks (if any) and surface contamination and their transport processes. Neutron activation of air, dust in the air and the rock walls of the drift during the preclosure time is not considered within the scope of this report. Any neutrons causing such activation are not themselves considered to be ''contaminants'' released from the waste package. This report: (1) Documents mathematical models and model parameters for evaluating airborne contaminant transport within the MGR subsurface; and (2) Provides tables of dose conversion factors for inhalation, air submersion, and ground exposure pathways for important radionuclides. The dose conversion factors for air submersion and ground exposure pathways are further limited to drift diameters of 7.62 m and 5.5 m, corresponding to the main and emplacement drifts, respectively. If the final repository design significantly deviates from these drift dimensions, the results in this report may require revision. The dose conversion factors are further derived by using concrete of sufficient thickness to simulate the drift walls. The gamma-ray scattering properties of concrete are sufficiently similar to those of the host rock and proposed insert material; use of concrete will have no significant impact on the conclusions. The information in this report is presented primarily for use in performing pre-closure radiological safety evaluations of radiological contaminants, but it may also be used to develop strategies for contaminant leak detection and monitoring in the MGR. Included in this report are the methods for determining the source terms and release fractions, and mathematical models and model parameters for contaminant transport and distribution within the repository. Various particle behavior mechanisms that affect the transport of contaminant are included. These particle behavior mechanisms include diffusion, settling, resuspension, agglomeration and other deposition mechanisms.

F.R. Faillace; Y. Yuan

2000-08-31T23:59:59.000Z

363

Two Ecosystem Demography Models Released  

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

Ecosystem Demography Models Released Ecosystem Demography Models Released The ORNL DAAC is pleased to announce the release of two Ecosystem Demography Models: Ecosystem Demography Model: U.S. Ecosystem Carbon Stocks and Fluxes, 1700-1990 . Data set prepared by G. Hurtt, S.W. Pacala, P.R. Moorcroft, J. Caspersen, E. Shevliakova, R.A. Houghton, B. Moore III, and J. Fisk. This model product contains the source code for the Ecosystem Demography Model (ED version 1.0) as well as model input and output data files for the conterminous United States. The ED is a mechanistic ecosystem model built around established sub-models of leaf level physiology, organic matter decomposition, hydrology, and functional biodiversity. It was used herein to estimate ecosystem carbon stocks and fluxes in the conterminous U.S. at

364

Quantifying Uncertainty in Epidemiological Models  

SciTech Connect

Modern epidemiology has made use of a number of mathematical models, including ordinary differential equation (ODE) based models and agent based models (ABMs) to describe the dynamics of how a disease may spread within a population and enable the rational design of strategies for intervention that effectively contain the spread of the disease. Although such predictions are of fundamental importance in preventing the next global pandemic, there is a significant gap in trusting the outcomes/predictions solely based on such models. Hence, there is a need to develop approaches such that mathematical models can be calibrated against historical data. In addition, there is a need to develop rigorous uncertainty quantification approaches that can provide insights into when a model will fail and characterize the confidence in the (possibly multiple) model outcomes/predictions, when such retrospective analysis cannot be performed. In this paper, we outline an approach to develop uncertainty quantification approaches for epidemiological models using formal methods and model checking. By specifying the outcomes expected from a model in a suitable spatio-temporal logic, we use probabilistic model checking methods to quantify the probability with which the epidemiological model satisfies the specification. We argue that statistical model checking methods can solve the uncertainty quantification problem for complex epidemiological models.

Ramanathan, Arvind [ORNL; Jha, Sumit Kumar [University of Central Florida

2012-01-01T23:59:59.000Z

365

Software maintenance maturity model (smmm): the software maintenance process model  

E-Print Network (OSTI)

This paper summarizes the research work leading to a Phd thesis that addresses the assessment and improvement of the software maintenance function by proposing a maturity model for daily software maintenance activities: Software Maintenance Maturity Model (SM mm) as well as its supporting knowledge based system SM Xpert. The software maintenance function suffers from a scarcity of management models to facilitate its evaluation, management, and continuous improvement. The SM mm addresses the unique activities of software maintenance while preserving a structure similar to that of the CMMi 1 maturity model. It is designed to be used as a complement to this model. The SM mm is based on practitioners experience, international standards, and the seminal literature on software maintenance. This paper presents the models purpose, scope, foundation, and architecture, followed by a knowledgebased system to help software maintainers learn and use the maturity model. 1.

Alain April; Jean-marc Desharnais

2005-01-01T23:59:59.000Z

366

PETROLEUM MARKET MODEL OF THE NATIONAL ENERGY MODELING SYSTEM ...  

U.S. Energy Information Administration (EIA)

DOE/EIA-M059(2012) Part 2. PETROLEUM MARKET MODEL OF THE NATIONAL ENERGY MODELING SYSTEM . Part 2 - Appendices B thru J . October 2012 . Office of Energy Analysis

367

System Model-Based Definition of Modeling Language Semantics  

Science Conference Proceedings (OSTI)

In this paper, we present an approach to define the semantics for object-oriented modeling languages. One important property of this semantics is to support underspecified and incomplete models. To this end, semantics is given as predicates over elements ...

Hans Grnniger; Jan Oliver Ringert; Bernhard Rumpe

2009-06-01T23:59:59.000Z

368

World Energy Projection System Plus Model Documentation: Macroeconomic Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Macroeconomic Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Brian Murphy

2011-09-29T23:59:59.000Z

369

Modelling sequential text with an adaptive topic model  

Science Conference Proceedings (OSTI)

Topic models are increasingly being used for text analysis tasks, often times replacing earlier semantic techniques such as latent semantic analysis. In this paper, we develop a novel adaptive topic model with the ability to adapt topics from both the ...

Lan Du; Wray Buntine; Huidong Jin

2012-07-01T23:59:59.000Z

370

Separability as a modeling paradigm in large probabilistic models  

E-Print Network (OSTI)

Many interesting stochastic models can be formulated as finite-state vector Markov processes, with a state characterized by the values of a collection of random variables. In general, such models suffer from the curse of ...

Richoux, William J., Jr. (William Joseph)

2011-01-01T23:59:59.000Z

371

Comparison of Photovoltaic Models in the System Advisor Model: Preprint  

DOE Green Energy (OSTI)

The System Advisor Model (SAM) is free software developed by the National Renewable Energy Laboratory (NREL) for predicting the performance of renewable energy systems and analyzing the financial feasibility of residential, commercial, and utility-scale grid-connected projects. SAM offers several options for predicting the performance of photovoltaic (PV) systems. The model requires that the analyst choose from three PV system models, and depending on that choice, possibly choose from three module and two inverter component models. To obtain meaningful results from SAM, the analyst must be aware of the differences between the model options and their applicability to different modeling scenarios. This paper presents an overview the different PV model options and presents a comparison of results for a 200-kW system using different model options.

Blair, N. J.; Dobos, A. P.; Gilman, P.

2013-08-01T23:59:59.000Z

372

World Energy Projection System Plus Model Documentation: World Electricity Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) World Electricity Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

2011-09-29T23:59:59.000Z

373

World Energy Projection System Plus Model Documentation: Greenhouse Gases Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Greenhouse Gases Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

2011-09-29T23:59:59.000Z

374

World Energy Projection System Plus Model Documentation: Natural Gas Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Natural Gas Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Brian Murphy

2011-09-29T23:59:59.000Z

375

World Energy Projection System Plus Model Documentation: Main Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Main Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Information Center

2011-01-20T23:59:59.000Z

376

World Energy Projection System Plus Model Documentation: Coal Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Coal Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Brian Murphy

2011-09-29T23:59:59.000Z

377

World Energy Projection System Plus Model Documentation: District Heat Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) District Heat Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Brian Murphy

2011-09-29T23:59:59.000Z

378

World Energy Projection System Plus Model Documentation: Commercial Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Commercial Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Brian Murphy

2011-09-29T23:59:59.000Z

379

World Energy Projection System Plus Model Documentation: Transportation Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) International Transportation model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Victoria Zaretskaya

2011-09-29T23:59:59.000Z

380

World Energy Projection System Plus Model Documentation: Residential Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Residential Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Brian Murphy

2011-09-29T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

World Energy Projection System Plus Model Documentation: Refinery Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) Refinery Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Adrian Geagla

2011-10-04T23:59:59.000Z

382

World Energy Projection System Plus Model Documentation: Industrial Model  

Reports and Publications (EIA)

This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS+) World Industrial Model (WIM). It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

Peter Gross

2011-10-12T23:59:59.000Z

383

Coupled AtmosphereBiophysicsHydrology Models for Environmental Modeling  

Science Conference Proceedings (OSTI)

The formulation and implementation of LEAF-2, the Land EcosystemAtmosphere Feedback model, which comprises the representation of landsurface processes in the Regional Atmospheric Modeling System (RAMS), is described. LEAF-2 is a prognostic ...

Robert L. Walko; Larry E. Band; Jill Baron; Timothy G. F. Kittel; Richard Lammers; Tsengdar J. Lee; Dennis Ojima; Roger A. Pielke Sr.; Chris Taylor; Christina Tague; Craig J. Tremback; Pier Luigi Vidale

2000-06-01T23:59:59.000Z

384

Modeling Surface Solar Radiation: Model Formulation and Validation  

Science Conference Proceedings (OSTI)

A model for computing global solar radiation at the surface was formulated for use with satellite observations. A compromise in the approach was necessary, whereby the model accuracy and the inherent limitations of satellite observations were ...

R. T. Pinker; J. A. Ewing

1985-05-01T23:59:59.000Z

385

A Distributed Snow-Evolution Modeling System (SnowModel)  

Science Conference Proceedings (OSTI)

SnowModel is a spatially distributed snow-evolution modeling system designed for application in landscapes, climates, and conditions where snow occurs. It is an aggregation of four submodels: MicroMet defines meteorological forcing conditions, ...

Glen E. Liston; Kelly Elder

2006-12-01T23:59:59.000Z

386

Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

Modeling Techniques Modeling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Modeling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Modeling Techniques Parent Exploration Technique: Data and Modeling Techniques Information Provided by Technique Lithology: Rock types, rock chemistry, stratigraphic layer organization Stratigraphic/Structural: Stress fields and magnitudes, location and shape of permeable and non-permeable structures, faults, fracture patterns Hydrological: Visualization and prediction of the flow patterns and characteristics of geothermal fluids, hydrothermal fluid flow characteristics, up-flow patterns

387

Common Information Model (CIM) for Dynamics: Standard Models  

Science Conference Proceedings (OSTI)

This report describes the work accomplished in 2011 and 2012 to develop a standard approach for the exchange of dynamic models and their association to a static power flow model based on the International Electrotechnical Commission (IEC) 61970 Common Information Model (CIM) standards. These exchange models represent the dynamic behavior of the majority of power system components in common use today by electric utilities to perform system simulation studies for system dynamic assessment and for ...

2013-02-05T23:59:59.000Z

388

Petroleum Market Model (PMM) - 2002 EIA Models Directory  

U.S. Energy Information Administration (EIA)

Model Structure: FORTRAN callable subroutines, which update the linear programming matrix, re ... and State Energy Price and Expenditure Report.

389

Computer cast blast modelling  

SciTech Connect

Cast blasting can be designed to utilize explosive energy effectively and economically for coal mining operations to remove overburden material. The more overburden removed by explosives, the less blasted material there is left to be transported with mechanical equipment, such as draglines and trucks. In order to optimize the percentage of rock that is cast, a higher powder factor than normal is required plus an initiation technique designed to produce a much greater degree of horizontal muck movement. This paper compares two blast models known as DMC (Distinct Motion Code) and SABREX (Scientific Approach to Breaking Rock with Explosives). DMC, applies discrete spherical elements interacted with the flow of explosive gases and the explicit time integration to track particle motion resulting from a blast. The input to this model includes multi-layer rock properties, and both loading geometry and explosives equation-of-state parameters. It enables the user to have a wide range of control over drill pattern and explosive loading design parameters. SABREX assumes that heave process is controlled by the explosive gases which determines the velocity and time of initial movement of blocks within the burden, and then tracks the motion of the blocks until they come to a rest. In order to reduce computing time, the in-flight collisions of blocks are not considered and the motion of the first row is made to limit the motion of subsequent rows. Although modelling a blast is a complex task, the DMC can perform a blast simulation in 0.5 hours on the SUN SPARCstation 10--41 while the new SABREX 3.5 produces results of a cast blast in ten seconds on a 486-PC computer. Predicted percentage of cast and face velocities from both computer codes compare well with the measured results from a full scale cast blast.

Chung, S. [ICI Explosives Canada, North York, ON (Canada); McGill, M. [ICI Explosives USA, Dallas, TX (United States); Preece, D.S. [Sandia National Labs., Albuquerque, NM (United States)

1994-07-01T23:59:59.000Z

390

BOILER PERF MODEL  

Science Conference Proceedings (OSTI)

The BOILER PERFORMANCE MODEL is a package of eleven programs for predicting the heat transfer performance of fossil-fired utility boilers. The programs can model a wide variety of boiler designs, provide boiler performance estimates for coal, oil or gaseous fuels, determine the influence of slagging and fouling characteristics on boiler performance, and calculate performance factors for tradeoff analyses comparing boilers and fuels. Given a set of target operating conditions, the programs can estimate control settings, gas and steam operating profiles through the boiler, overall boiler efficiency, and fuel consumption. The programs are broken into three categories: data, calculation, and reports with a central processor program acting as the link allowing the user to access any of the data or calculation programs and easily move between programs. The calculations are divided among the following five programs: heat duty calculation, combustion calculation, furnace performance calculation, convection pass performance calculation, and air heater performance calculation. The programs can model subcritical or supercritical boilers, most configurations of convective passes including boilers that achieve final reheat steam temperature control by split back pass, boilers with as many as two reheat circuits and/or multiple attemperator stations in series, and boilers with or without economizers and/or air heaters. Either regenerative or tubular air heaters are supported. For wall-fired or tangentially-fired furnaces, the furnace performance program predicts the temperature of the flue gases leaving the furnace. It accounts for variations in excess air, gas recirculation, burner tilt, wall temperature, and wall cleanliness. For boilers having radiant panels or platens above the furnace, the convective pass program uses the results of the combustion chamber calculation to estimate the gas temperature entering the convective pass.

Winslow, J.C. (USDOE, Pittsburgh Energy Technology Center, Pittsburgh, PA (United States))

1988-01-01T23:59:59.000Z

391

Statistical modelling of tropical cyclone tracks: modelling cyclone lysis  

E-Print Network (OSTI)

We describe results from the fifth stage of a project to build a statistical model of tropical cyclone tracks. The previous stages considered genesis and the shape of tracks. We now consider in more detail how to represent the lysis (death) of tropical cyclones. Improving the lysis model turns out to bring a significant improvement to the track model overall.

Hall, T; Hall, Tim; Jewson, Stephen

2005-01-01T23:59:59.000Z

392

Improved Model Output Statistics Forecasts through Model Consensus  

Science Conference Proceedings (OSTI)

Consensus forecasts are computed by averaging model output statistics (MOS) forecasts based on the limited-area fine-mesh (LFM) model and the nested grid model (NGM) for the three-year period 199092. The test consists of four weather elements (...

Robert L. Vislocky; J. Michael Fritsch

1995-07-01T23:59:59.000Z

393

Superfund accelerated cleanup model  

SciTech Connect

In an effort to speed and maximize cleanup of the worst sites first, the Environmental Protection Agency (EPA) developed the Superfund Accelerated Cleanup Model (SACM). SACM streamlines the Superfund process so hazardous waste sites can be addressed quicker and in a more cost effective manner. EPA Regional offices developed a number of pilot projects to test the principles of SACM. Although many pilots are underway in the Regions, the pilots described here involve four areas: accelerating cleanup through early actions; integrating site assessments; using Regional Decision Teams to establish priorities; and accelerating cleanup through the use of new technology.

Not Available

1994-08-01T23:59:59.000Z

394

Integrated Assessment Modeling  

Science Conference Proceedings (OSTI)

This paper discusses the role of Integrated Assessment models (IAMs) in climate change research. IAMs are an interdisciplinary research platform, which constitutes a consistent scientific framework in which the large-scale interactions between human and natural Earth systems can be examined. In so doing, IAMs provide insights that would otherwise be unavailable from traditional single-discipline research. By providing a broader view of the issue, IAMs constitute an important tool for decision support. IAMs are also a home of human Earth system research and provide natural Earth system scientists information about the nature of human intervention in global biogeophysical and geochemical processes.

Edmonds, James A.; Calvin, Katherine V.; Clarke, Leon E.; Janetos, Anthony C.; Kim, Son H.; Wise, Marshall A.; McJeon, Haewon C.

2012-10-31T23:59:59.000Z

395

Electricity Subsector Cybersecurity Capability Maturity Model...  

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

Cybersecurity Electricity Subsector Cybersecurity Capability Maturity Model Electricity Subsector Cybersecurity Capability Maturity Model Electricity Advisory Committee...

396

Growing role for power-plant modeling  

SciTech Connect

The use of models is described in nuclear plant design as an aid in planning construction, training operating and maintenance personnel, and eliminating construction and operational problems. Model types discussed include preliminary models, general arrangement models, site models, specific design or study models, construction models, and final design models. (DG)

Hickman, R.S.; Munguia, A.J.; Askwith, H.H.

1976-06-01T23:59:59.000Z

397

Five forest harvesting simulation models, part 1: modeling characteristics  

SciTech Connect

This paper is the first of two describing the conclusions from a study to determine the state of the art in timber harvesting computer simulation modeling. Five models were evaluated -- Forest Harvesting Simulation Model (FHSM), Full Tree Field Chipping (FTFC), Harvesting System Simulator (HSS), Simulation Applied to Logging Systems (SAPLOS), and Timber Harvesting and Transport Simulator (THATS) -- for their potential use in southern forest harvesting operations. In Part I, modeling characteristics and overall model philosophy are identified and illustrated. This includes a detailed discussion of the wood flow process in each model, accounting strategies for productive/non-productive times, performance variables, and the different types of harvesting systems modelable. In Part II we discuss user implementation problems. Those dealt with in detail are: What questions can be asked of the model. What are the modeling tradeoffs, and how do they impact on the analysis. What are the computer skills necessary to effectively work with the model. What computer support is needed. Are the models operational. The results provide a good picture of the state of the art in timber harvesting computer simulation. Much learning has occurred in the generation of these models, and many modeling and implementation problems have been uncovered, some of which remain unsolved. Hence, the user needs to examine closely the model and the intended application so that results will represent usable, valid data. It is recommended that the development of timber harvesting computer simulation modeling continue, so that existing and proposed timber harvesting strategies can be adequately evaluated. A set of design criteria are proposed. (Refs. 21).

Goulet, D.V.; Iff, R.H.; Sirois, D.L.

1980-01-01T23:59:59.000Z

398

Modeling robot behavior with CCL  

Science Conference Proceedings (OSTI)

This paper presents the use of a Concurrent Communicating Lists (CCL) library in robot behavior modeling. CCL provides several software components, which allow the model to be built, simulated and formally verified. Due to the integration ...

Konrad Ku?akowski; Tomasz Szmuc

2012-11-01T23:59:59.000Z

399

XML for CIM Model Exchange  

E-Print Network (OSTI)

Abstract: Organizations responsible for secure power system operations need to model their systems and portions of neighboring systems in support of control and security functions. In the USA, the restructuring of the electric utility industry emphasizes the need to exchange operational system models for Independent System Operators (ISO) and Regional Transmission Organizations (RTO). These models need to be node/breaker oriented in order to meet the needs of control center applications. Unfortunately, the existing model exchange formats derive from planning models that are bus/branch oriented and lack detail required for control center operations. To support these data modeling exchange needs, NERC has adopted an approach that uses the semantic data definitions from the EPRI CIM with the syntax of XML to create XML files containing operational power system models. This paper presents the key aspects of XML and the CIM that make them excellent choices for addressing the operational model exchange needs of our industry.

A. Devos; Member Ieee; S. E. Widergren; Sr. Member; Ieee J. Zhu; Member Ieee

2001-01-01T23:59:59.000Z

400

Dynamic Model of Facial Cooling  

Science Conference Proceedings (OSTI)

Recent modifications to windchill forecasting have motivated the development of a rate-of-tissue-cooling model for the purpose of predicting facial cooling times. The model assumes a hollow cylindrical geometry with a fixed internal boundary ...

Peter Tikuisis; Randall J. Osczevski

2002-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

The Community Climate System Model  

Science Conference Proceedings (OSTI)

The community Earth System Model (CESM) is a fully coupled, global climate model that provides state-of-the-art computer simulations of the Earth's past, present, and future climate states.

Worley, Patrick H [ORNL

2011-01-01T23:59:59.000Z

402

Workflow Patterns in Process Modeling  

E-Print Network (OSTI)

This paper proposes an introduction to one of the newest modelling methods, an executable model based on workflows. We present the terminology for some basic workflow patterns, as described in the Workflow Management Coalition Terminology and Glossary.

Fortis, Alexandra

2009-01-01T23:59:59.000Z

403

TRBAC: A Temporal Authorization Model  

Science Conference Proceedings (OSTI)

We show how the family of temporal role-based access control (TRBAC) models from [6], the TRBACO models, may be equivalently represented in a considerably simpler and more efficiently implemented way. We call the latter the TRBACN ...

Steve Barker

2001-05-01T23:59:59.000Z

404

Roles for Mobile Learner Models  

Science Conference Proceedings (OSTI)

This paper discusses uses for learner models in mobileadaptive learning environments, focussing on howdifferent learner modelling issues and attributes maybe relevant in a mobile learning context. These issuesare illustrated by four simple systems. More ...

Susan Bull; Yanchun Cui; Adam Thomas McEvoy; Eileen Reid; Wei Yang

2004-03-01T23:59:59.000Z

405

Judging Air Quality Model Performance  

Science Conference Proceedings (OSTI)

Under the direction of the AMS Steering Committee for the EPA Cooperative Agreement on air quality modeling, a small group of scientists was convened to review and recommend procedures to evaluate the performance of air quality models. Particular ...

Douglas G. Fox

1981-05-01T23:59:59.000Z

406

Diffusion Models for Transient Releases  

Science Conference Proceedings (OSTI)

Plume models were developed to predict the concentration due to a nonbuoyant release from a source whose strength decreases exponentially with time of a pollutant that reacts in the atmosphere at a first-order rate. Models were developed that ...

Thomas J. Overcamp

1990-12-01T23:59:59.000Z

407

Tracer Verification of Trajectory Models  

Science Conference Proceedings (OSTI)

Perfluorocarbon tracer data collected during the Cross Appalachian Tracer Experiment (CAPTEX '83) are used to determine the accuracy of three trajectory models: an isentropic, an isobaric, and a dimensional sigma model. The root-mean-square ...

Philip L. Haagenson; Ying-Hwa Kuo; Marina Syumanich; Nelson L. Seaman

1987-03-01T23:59:59.000Z

408

Developing model checkers using PAT  

Science Conference Proceedings (OSTI)

During the last two decades, model checking has emerged as an effective system analysis technique complementary to simulation and testing. Many model checking algorithms and state space reduction techniques have been proposed. Although it is desirable ...

Yang Liu; Jun Sun; Jin Song Dong

2010-09-01T23:59:59.000Z

409

The ECPC Coupled Prediction Model  

Science Conference Proceedings (OSTI)

This paper presents a new Experimental Climate Prediction Center (ECPC) Coupled Prediction Model (ECPM). The ECPM includes the Jet Propulsion Laboratory (JPL) version of the Massachusetts Institute of Technology (MIT) ocean model coupled to the ...

E. Yulaeva; M. Kanamitsu; J. Roads

2008-01-01T23:59:59.000Z

410

Content Modeling Using Latent Permutations  

E-Print Network (OSTI)

We present a novel Bayesian topic model for learning discourse-level document structure. Our model leverages insights from discourse theory to constrain latent topic assignments in a way that reflects the underlying ...

Chen, Harr

411

Dynamic Mercury Cycling Model Upgrade  

Science Conference Proceedings (OSTI)

This technical update describes the status of activities to upgrade the Dynamic Mercury Cycling Model (D-MCM), an EPRI simulation model that predicts mercury cycling and bioaccumulation in lakes.

2008-12-17T23:59:59.000Z

412

Statistical Modeling in Nonlinear Systems  

Science Conference Proceedings (OSTI)

The use of linear statistical methods in building climate prediction models is examined, particularly the use of anomalies. The authors perspective is that the climate system is a nonlinear interacting system, so the impact of modeling using ...

Edward P. Campbell

2005-08-01T23:59:59.000Z

413

Density Coordinate Mixed Layer Models  

Science Conference Proceedings (OSTI)

The development of mixed layer models in so-called density coordinates is discussed. Density coordinates, or isopycnal coordinates as they are sometimes called, are becoming increasingly popular for use in ocean models due to their highly ...

William K. Dewar

2001-02-01T23:59:59.000Z

414

Testing Simple Models of ENSO  

Science Conference Proceedings (OSTI)

The realistic simulation of El NioSouthern Oscillation (ENSO) by the University of California, Los Angeles (UCLA), coupled atmosphereocean general circulation model (CGCM) is used to test two simple theoretical models of the phenomenon: the ...

Carlos R. Mechoso; J. David Neelin; Jin-Yi Yu

2003-01-01T23:59:59.000Z

415

Journeys Beyond the Standard Model  

E-Print Network (OSTI)

for the standard model Higgs boson in pp collisions at s = 7for ? the Standard Model Higgs boson using up to 4.9 fb oftwo component fields of Eq. higgs boson is then a linear

Elor, Gilly

2013-01-01T23:59:59.000Z

416

Do Box Inverse Models Work?  

Science Conference Proceedings (OSTI)

The performance of a box inverse model is tested using output from a near-eddy-resolving numerical model. Conservation equations are written in isopycnal layers for three properties: mass, heat, and salt anomaly. If the equations are free of ...

Peter C. McIntosh; Stephen R. Rintoul

1997-02-01T23:59:59.000Z

417

HYDROLYZED WOOD SLURRY FLOW MODELING  

E-Print Network (OSTI)

LBL-10090 UC-61 HYDROLYZED WOOD SLURRY FLOW MODELING JimLBL-10090 HYDROLYZED WOOD SLURRY FLOW MODELING Jim Wrathallconversion of hydrolyzed wood slurry to fuel oil, Based on

Wrathall, Jim

2012-01-01T23:59:59.000Z

418

Constraint Reasoning for Differential Models  

Science Conference Proceedings (OSTI)

The basic motivation of this work was the integration of biophysical models within the interval constraints framework for decision support. Comparing the major features of biophysical models with the expressive power of the existing interval constraints ...

Jorge Cruz

2005-05-01T23:59:59.000Z

419

Uncertainty in Air Quality Modeling  

Science Conference Proceedings (OSTI)

Under the direction of the AMS Steering Committee for the EPA Cooperative Agreement on Air Quality Modeling, a small group of scientists convened to consider the question of uncertainty in air quality modeling. Because the group was particularly ...

Douglas G. Fox

1984-01-01T23:59:59.000Z

420

Modeling & Simulation - GCTool  

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

GCTool Computer Model Helps Focus Fuel Cell Vehicle Research Somewhere near Detroit, an automotive engineer stares at the ceiling, wondering how to squeeze 1% more efficiency out of the fuel cell reformer she's been working on. Never mind 5% more from the next component on her list. Computer software, such as Argonne's GCTool, lets designers "try out" different system configurations, without the expense and delays of actually building numerous prototypes. Our engineer could learn that she's been worrying about the wrong thing. Argonne systems analysts have shown that in fuel cell systems for vehicles, more is not always better. For example, increasing the efficiency of the fuel processor (the component that converts hydrocarbon fuel into hydrogen for the fuel cell) may actually lower the overall system efficiency. "They go in opposite directions. You can make the fuel processor more efficient, but that's because you're stealing energy from somewhere else in the system," says Argonne's Romesh Kumar, who leads Argonne's fuel cell modeling efforts.

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Exceptional Supersymmetric Standard Model  

E-Print Network (OSTI)

We discuss some phenomenological aspects of an $E_6$ inspired supersymmetric standard model with an extra $U(1)_{N}$ gauge symmetry under which right-handed neutrinos have zero charge, allowing a conventional see-saw mechanism. The $\\mu$ problem is solved in a similar way to the NMSSM, but without the accompanying problems of singlet tadpoles or domain walls. The above exceptional supersymmetric standard model (ESSM) involves the low energy matter content of three 27 representations of $E_6$, which is broken at the GUT scale, and allows gauge coupling unification due to an additional pair of Higgs-like doublets. The ESSM predicts a $Z'$ boson and exotic quarks which, if light enough, will provide spectacular new physics signals at the LHC. We study the LHC phenomenology of the $Z'$ and extra quarks, including their production and decay signatures particular to the ESSM. We also discuss the two-loop upper bound on the mass of the lightest CP-even Higgs boson, and show that it can be significantly heavier than in either the MSSM or the NMSSM.

S. F. King; S. Moretti; R. Nevzorov

2005-11-22T23:59:59.000Z

422

Molecular models for explosives  

Science Conference Proceedings (OSTI)

Any fundamental understanding of detonations and explosives' behavior requires as a starting point a knowledge of molecular properties. Indeed, there is a sizable literature concerning observed decomposition kinetics, x-ray crystal structures, heats of formation, etc. for explosives. As a result of this extensive experimental work, a large and ever increasing number of observed properties of explosives are available. Given sufficient data, models for the prediction of molecular properties can be developed and calibrated. Nevertheless, many desirable molecular properties can be obtained with considerable effort and, in many cases, experimental measurements are not possible for practical reasons; e.g., bond dissociation energies are very difficult to obtain for explosives. Consequently, theoretical methods for obtaining these properties are quite desirable. In addition, it is oftentimes desired to estimate the properties of unknown molecules. Consequently, methods for the estimation of molecular properties, which might seem quite crude by other standards, can be of considerable practical value. We present in this paper some of our recent efforts at extending and developing molecular models for explosives. These efforts fall into three main areas: Estimation of crystal densities of organic nitrates and perchlorates by an entirely empirical group additivity method; calculation of molecular heats of formation and bond dissociation energies (BDE's) by a semi-empirical molecular orbital method (AM1); and the electronic structure of nitrobenzene as obtained from non-empirical (sometimes called ab initio molecular orbital calculations. 10 refs.

Ritchie, J.P.; Bachrach, S.M.

1987-01-01T23:59:59.000Z

423

Advanced Production Planning Models  

SciTech Connect

>This report describes the innovative modeling approach developed as a result of a 3-year Laboratory Directed Research and Development project. The overall goal of this project was to provide an effective suite of solvers for advanced production planning at facilities in the nuclear weapons complex (NWC). We focused our development activities on problems related to operations at the DOE's Pantex Plant. These types of scheduling problems appear in many contexts other than Pantex--both within the NWC (e.g., Neutron Generators) and in other commercial manufacturing settings. We successfully developed an innovative and effective solution strategy for these types of problems. We have tested this approach on actual data from Pantex, and from Org. 14000 (Neutron Generator production). This report focuses on the mathematical representation of the modeling approach and presents three representative studies using Pantex data. Results associated with the Neutron Generator facility will be published in a subsequent SAND report. The approach to task-based scheduling described here represents a significant addition to the literature for large-scale, realistic scheduling problems in a variety of production settings.

JONES,DEAN A.; LAWTON,CRAIG R.; KJELDGAARD,EDWIN A.; WRIGHT,STEPHEN TROY; TURNQUIST,MARK A.; NOZICK,LINDA K.; LIST,GEORGE F.

2000-12-01T23:59:59.000Z

424

Value Modeling of Customer Satisfaction  

Science Conference Proceedings (OSTI)

This report discusses a topic of central importance in asset management: the development and use of value models. Value models translate corporate goals into operational measures for use in decision making, such as decisions regarding resource allocation, capital investment, and OM budgeting. In particular, this report deals with modeling the value of customer satisfaction and provides practical guidance on how to use information available in utility customer satisfaction studies to develop value models....

2007-07-23T23:59:59.000Z

425

Modeling Quantum Information Systems abstract  

Science Conference Proceedings (OSTI)

Paul E. Black and Andrew W. Lane, Modeling Quantum Information Systems, Proc. SPIE, Vol. 5436, Quantum Information ...

2013-05-07T23:59:59.000Z

426

Project: Sustainability Modeling and Optimization  

Science Conference Proceedings (OSTI)

... and the capabilities to formulate simulation and optimization models. ... Energy Efficiency Analysis for a Casting Production System, Berglund ...

2012-12-27T23:59:59.000Z

427

Model Transformations And Tool Integration  

E-Print Network (OSTI)

Model transformations are increasingly recognised as being of significant importance to many areas of software development and integration. Recent attention on model transformations has particularly focused on the OMG's Queries / Views / Transformations (QVT) Request for Proposals (RFP). In this paper I motivate the need for dedicated approaches to model transformations, particularly for the data involved in tool integration, outline the challenges involved, and then present a number of technologies and techniques which allow the construction of flexible, powerful and practical model transformations.

Laurence Tratt

2004-01-01T23:59:59.000Z

428

Statistical models for motion segmentation and tracking  

Science Conference Proceedings (OSTI)

Accurate Statistical Models were recognized as essential for Computer Vision long ago. The main difficulties related to the application of such models are devising the model itself, computing the model parameters, applying the model efficiently, conditioning ...

King Yuen Wong

2005-01-01T23:59:59.000Z

429

Model combination by decomposition and aggregation  

E-Print Network (OSTI)

This thesis focuses on a general problem in statistical modeling, namely model combination. It proposes a novel feature-based model combination method to improve model accuracy and reduce model uncertainty. In this method, ...

Xu, Mingyang, 1974-

2004-01-01T23:59:59.000Z

430

Transportation Sector Module 2003, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2003-02-01T23:59:59.000Z

431

Transportation Sector Module 2009, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2009-06-02T23:59:59.000Z

432

Transportation Sector Module 2006, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2006-09-01T23:59:59.000Z

433

Transportation Sector Module 2007, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2007-05-09T23:59:59.000Z

434

Transportation Sector Module 2002, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2002-05-01T23:59:59.000Z

435

Transportation Sector Module 2001, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2001-02-01T23:59:59.000Z

436

Transportation Sector Module 2004, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2004-03-01T23:59:59.000Z

437

Transportation Sector Module 2005, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2005-06-01T23:59:59.000Z

438

Transportation Sector Module 2008, Model Documentation  

Reports and Publications (EIA)

Documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model.

John Maples

2008-11-04T23:59:59.000Z

439

Studying team shared mental models  

Science Conference Proceedings (OSTI)

As technology is used to support team-based activities, one important factor affecting the performance of teams is the kind of mental model shared between team members. This paper describes a novel conceptual graph based methodology to study these mental ... Keywords: conceptual graphs, mental models, shared mental models, taskwork, team communication, team effectiveness, team performance, teamwork

Sandra Carpenter; Julie L. Fortune; Harry S. Delugach; Letha H. Etzkorn; Dawn R. Utley; Phillip A. Farrington; Shamsnaz Virani

2008-11-01T23:59:59.000Z

440

Multiscale modeling with carbon nanotubes  

Science Conference Proceedings (OSTI)

Technologically important nanomaterials come in all shapes and sizes. They can range from small molecules to complex composites and mixtures. Depending upon the spatial dimensions of the system and properties under investigation computer modeling of ... Keywords: DFT (density functional theory), Mesoscale modeling, Molecular modeling, NEGF (nonequilibrium Green's function), NEMS (nanoelectromechanical sensors), Nanocomposites, Nanotubes, Sensors

Amitesh Maiti

2008-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

Microscopic Models for Chemical Thermodynamics  

E-Print Network (OSTI)

We introduce an infinite particle system dynamics, which includes stochastic chemical kinetics models, the classical Kac model and free space movement. We study energy redistribution between two energy types (kinetic and chemical) in different time scales, similar to energy redistribution in the living cell. One example is considered in great detail, where the model provides main formulas of chemical thermodynamics.

Malyshev, V A

2011-01-01T23:59:59.000Z

442

Microscopic Models for Chemical Thermodynamics  

E-Print Network (OSTI)

We introduce an infinite particle system dynamics, which includes stochastic chemical kinetics models, the classical Kac model and free space movement. We study energy redistribution between two energy types (kinetic and chemical) in different time scales, similar to energy redistribution in the living cell. One example is considered in great detail, where the model provides main formulas of chemical thermodynamics.

V. A. Malyshev

2011-12-08T23:59:59.000Z

443

Mathematical model for cell division  

Science Conference Proceedings (OSTI)

The division of a living cell, such as the whitefish blastula, is modeled with the Ovals of Cassini as the basic building block. The model uses two fixed points which could correspond to the approximate center of the chromosomes about which the nuclei ... Keywords: Cell division, Modeling, Ovals of Cassini

D. Mckenney; J. A. Nickel

1997-01-01T23:59:59.000Z

444

Minimum Description Length Model Selection  

E-Print Network (OSTI)

Minimum Description Length Model Selection Problems and Extensions Steven de Rooij #12;#12;Minimum Description Length Model Selection Problems and Extensions #12;ILLC Dissertation Series DS-2008-07 For further-mail: illc@science.uva.nl homepage: http://www.illc.uva.nl/ #12;Minimum Description Length Model Selection

445

Regions in Energy Market Models  

DOE Green Energy (OSTI)

This report explores the different options for spatial resolution of an energy market model--and the advantages and disadvantages of models with fine spatial resolution. It examines different options for capturing spatial variations, considers the tradeoffs between them, and presents a few examples from one particular model that has been run at different levels of spatial resolution.

Short, W.

2007-02-01T23:59:59.000Z

446

Position Paper: Modelling with stakeholders  

Science Conference Proceedings (OSTI)

Stakeholder engagement, collaboration, or participation, shared learning or fact-finding, have become buzz words and hardly any environmental assessment or modelling effort today can be presented without some kind of reference to stakeholders and their ... Keywords: Co-learning, Co-management, Collaborative decision making, Companion modelling, Participatory modelling, Shared learning

Alexey Voinov; Francois Bousquet

2010-11-01T23:59:59.000Z

447

Structural Modelling with Sparse Kernels  

Science Conference Proceedings (OSTI)

A widely acknowledged drawback of many statistical modelling techniques, commonly used in machine learning, is that the resulting model is extremely difficult to interpret. A number of new concepts and algorithms have been introduced by researchers to ... Keywords: ANOVA, Kernel methods, model interpretability, sparse structure, transparency

S. R. Gunn; J. S. Kandola

2002-09-01T23:59:59.000Z

448

6, 60816124, 2006 Modeling biomass  

E-Print Network (OSTI)

ACPD 6, 6081­6124, 2006 Modeling biomass smoke injection into the LS (part II) G. Luderer et al Chemistry and Physics Discussions Modeling of biomass smoke injection into the lower stratosphere by a large Correspondence to: G. Luderer (gunnar@mpch-mainz.mpg.de) 6081 #12;ACPD 6, 6081­6124, 2006 Modeling biomass smoke

Paris-Sud XI, Université de

449

Regional Economic Models, Inc. (REMI) Model | Open Energy Information  

Open Energy Info (EERE)

Regional Economic Models, Inc. (REMI) Model Regional Economic Models, Inc. (REMI) Model Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: REMI Agency/Company /Organization: Regional Economic Models Inc. Sector: Energy Focus Area: Transportation Phase: Determine Baseline, Develop Goals Topics: Baseline projection, GHG inventory, Pathways analysis Resource Type: Software/modeling tools User Interface: Desktop Application Complexity/Ease of Use: Moderate Website: www.remi.com/ Cost: Paid References: http://www.remi.com/index.php?page=overview&hl=en_US Related Tools Job and Economic Development Impact Models (JEDI) The Integrated Environmental Strategies Handbook: A Resource Guide for Air Quality Planning

450

Model documentation report: Short-Term Hydroelectric Generation Model  

DOE Green Energy (OSTI)

The purpose of this report is to define the objectives of the Short- Term Hydroelectric Generation Model (STHGM), describe its basic approach, and to provide details on the model structure. This report is intended as a reference document for model analysts, users, and the general public. Documentation of the model is in accordance with the Energy Information Administration`s (AYE) legal obligation to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). The STHGM performs a short-term (18 to 27- month) forecast of hydroelectric generation in the United States using an autoregressive integrated moving average (UREMIA) time series model with precipitation as an explanatory variable. The model results are used as input for the short-term Energy Outlook.

Not Available

1993-08-01T23:59:59.000Z

451

Model documentation report: Transportation sector model of the National Energy Modeling System  

SciTech Connect

This report documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Transportation Model (TRAN). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated by the model. This document serves three purposes. First, it is a reference document providing a detailed description of TRAN for model analysts, users, and the public. Second, this report meets the legal requirements of the Energy Information Administration (EIA) to provide adequate documentation in support of its statistical and forecast reports (Public Law 93-275, 57(b)(1)). Third, it permits continuity in model development by providing documentation from which energy analysts can undertake model enhancements, data updates, and parameter refinements.

Not Available

1994-03-01T23:59:59.000Z

452

Storage Business Model White Paper  

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

Storage Business Model White Paper Storage Business Model White Paper Summary June 11 2013 Storage Business Model White Paper - Purpose  Identify existing business models for investors/operators, utilities, end users  Discuss alignment of storage "value proposition" with existing market designs and regulatory paradigms  Difficulties in realizing wholesale market product revenue streams for distributed storage - the "bundled applications" problem  Discuss risks/barriers to storage adoption and where existing risk mitigation measures fall down  Recommendations for policy/research steps - Alternative business models - Accelerated research into life span and failure modes

453

Multiphase inverse modeling: An Overview  

DOE Green Energy (OSTI)

Inverse modeling is a technique to derive model-related parameters from a variety of observations made on hydrogeologic systems, from small-scale laboratory experiments to field tests to long-term geothermal reservoir responses. If properly chosen, these observations contain information about the system behavior that is relevant to the performance of a geothermal field. Estimating model-related parameters and reducing their uncertainty is an important step in model development, because errors in the parameters constitute a major source of prediction errors. This paper contains an overview of inverse modeling applications using the ITOUGH2 code, demonstrating the possibilities and limitations of a formalized approach to the parameter estimation problem.

Finsterle, S.

1998-03-01T23:59:59.000Z

454

MULTISCALE THERMOHYDROLOGIC MODEL  

Science Conference Proceedings (OSTI)

The intended purpose of the multiscale thermohydrologic model (MSTHM) is to predict the possible range of thermal-hydrologic conditions, resulting from uncertainty and variability, in the repository emplacement drifts, including the invert, and in the adjoining host rock for the repository at Yucca Mountain. The goal of the MSTHM is to predict a reasonable range of possible thermal-hydrologic conditions within the emplacement drift. To be reasonable, this range includes the influence of waste-package-to-waste-package heat output variability relevant to the license application design, as well as the influence of uncertainty and variability in the geologic and hydrologic conditions relevant to predicting the thermal-hydrologic response in emplacement drifts. This goal is quite different from the goal of a model to predict a single expected thermal-hydrologic response. As a result, the development and validation of the MSTHM and the associated analyses using this model are focused on the goal of predicting a reasonable range of thermal-hydrologic conditions resulting from parametric uncertainty and waste-package-to-waste-package heat-output variability. Thermal-hydrologic conditions within emplacement drifts depend primarily on thermal-hydrologic conditions in the host rock at the drift wall and on the temperature difference between the drift wall and the drip-shield and waste-package surfaces. Thus, the ability to predict a reasonable range of relevant in-drift MSTHM output parameters (e.g., temperature and relative humidity) is based on valid predictions of thermal-hydrologic processes in the host rock, as well as valid predictions of heat-transfer processes between the drift wall and the drip-shield and waste-package surfaces. Because the invert contains crushed gravel derived from the host rock, the invert is, in effect, an extension of the host rock, with thermal and hydrologic properties that have been modified by virtue of the crushing (and the resulting geometry of the gravel grains). Thus, given that reasonable invert properties are applied, the ability to predict a reasonable range of relevant MSTHM output parameters for the invert are based on valid predictions of thermal-hydrologic processes in the host rock. The MSTHM calculates the following thermal-hydrologic parameters: temperature, relative humidity, liquid-phase saturation, evaporation rate, air-mass fraction, gas-phase pressure, capillary pressure, and liquid- and gas-phase fluxes. The thermal-hydrologic parameters used to support ''Total System Performance Assessment (TSPA) Model/Analysis for the License Application'' are identified in Table 1-1. The thermal-hydrologic parameters are determined as a function of position along each of the emplacement drifts and as a function of waste package type. These parameters are determined at various reference locations within the emplacement drifts, including the waste package and drip-shield surfaces and in the invert. The parameters are also determined at various defined locations in the adjoining host rock.

T. Buscheck

2005-07-07T23:59:59.000Z

455

Modeling Turbulent Flow  

National Nuclear Security Administration (NNSA)

Turbulent Turbulent Flow with Implicit LES L.G. Margolin 1 Proceedings of the Joint Russian-American Five Laboratory Conference on Computational Mathematics/Physics 19-23 June, 2005 Vienna, Austria 1 Applied Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545, len@lanl.gov 1 Abstract Implicit large eddy simulation (ILES) is a methodology for modeling high Reynolds' num- ber flows that combines computational efficiency and ease of implementation with predictive calculations and flexible application. Although ILES has been used for more than fifteen years, it is only recently that significant effort has gone into providing a physical rationale that speaks to its capabilities and its limitations. In this talk, we will present new theoret- ical results aimed toward building a justification and discuss some remaining gaps in our understanding and our practical

456

Modeling & Simulation - Batteries  

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

Production of Batteries for Electric and Hybrid Vehicles Production of Batteries for Electric and Hybrid Vehicles battery assessment graph Lithium-ion (Li-ion) batteries are currently being implemented in hybrid electric (HEV), plug-in hybrid electric (PHEV), and electric (EV) vehicles. While nickel metal-hydride will continue to be the battery chemistry of choice for some HEV models, Li-ion will be the dominate battery chemistry of the remaining market share for the near-future. Large government incentives are currently necessary for customer acceptance of the vehicles such as the Chevrolet Volt and Nissan Leaf. Understanding the parameters that control the cost of Li-ion will help researchers and policy makers understand the potential of Li-ion batteries to meet battery energy density and cost goals, thus enabling widespread adoption without incentives.

457

Models in Decision Analysis  

E-Print Network (OSTI)

Any statistical analysis or decision analysis contains numerical inputs of which we are unsure. Some of our uncertainty arises from physical randomness which we can model in various ways, ideally through probability. Some relates to judgmental estimates of qualities about which we may be unsure in many different respects. There are other uncertainties involved, however: some relates to ambiguity and imprecision of meaning; some relate to lack of clarity in the objectives which the analysis seeks to meet; some relate to the numerical accuracy of calculations. Suppose, for instance, that we need to consider the probability of a conservative government being returned at the next election. The probability, a subjective probability, itself is a number that the statistician or decision maker has to judge. In some ways it may be related to 'hard' data, but there will always be an element of judgement in setting its value. But one might also ask: what is meant by a 'conservative' government; ...

Simon French

1993-01-01T23:59:59.000Z

458

Detailed Physical Trough Model for NREL's Solar Advisor Model: Preprint  

SciTech Connect

Solar Advisor Model (SAM) is a free software package made available by the National Renewable Energy Laboratory (NREL), Sandia National Laboratory, and the US Department of Energy. SAM contains hourly system performance and economic models for concentrating solar power (CSP) systems, photovoltaic, solar hot-water, and generic fuel-use technologies. Versions of SAM prior to 2010 included only the parabolic trough model based on Excelergy. This model uses top-level empirical performance curves to characterize plant behavior, and thus is limited in predictive capability for new technologies or component configurations. To address this and other functionality challenges, a new trough model; derived from physical first principles was commissioned to supplement the Excelergy-based empirical model. This new 'physical model' approaches the task of characterizing the performance of the whole parabolic trough plant by replacing empirical curve-fit relationships with more detailed calculations where practical. The resulting model matches the annual performance of the SAM empirical model (which has been previously verified with plant data) while maintaining run-times compatible with parametric analysis, adding additional flexibility in modeled system configurations, and providing more detailed performance calculations in the solar field, power block, piping, and storage subsystems.

Wagner, M. J.; Blair, N.; Dobos, A.

2010-10-01T23:59:59.000Z

459

VEMAP 2: Selected Model Results  

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

Model Results Model Results The ORNL DAAC announces the release of two data sets from Phase 2 of the Vegetation/Ecosystem Modeling and Analysis Project (VEMAP). The two data sets contain monthly and annual results, respectively, from experiments conducted to compare the ecological responses of the suite of VEMAP models to projected transient scenarios of climate and atmospheric carbon dioxide for the period 1994 to 2100. The models investigated included five biogeochemical cycling models, which simulate plant production and nutrient cycles but rely on a static land-cover type, and two dynamic global vegetation models (DGVMs), which combine biogeochemical cycling processes with dynamic biogeographical processes including succession and fire simulation. VEMAP was an international project studying the response of biogeochemical

460

Propane Market Model documentation report  

SciTech Connect

The purpose of this report is to define the objectives of the Propane Market Model (PMM), describe its basic approach, and to provide details on model functions. This report is intended as a reference document for model analysts, users, and the general public. Documentation of the model is in accordance with EIA`s legal obligation to provide adequate documentation in support of its models. The PMM performs a short-term (6- to 9-months) forecast of demand and price for consumer-grad propane in the national US market; it also calculates the end-of-month stock level during the term of the forecast. Another part of the model allows for short-term demand forecasts for certain individual Petroleum Administration for Defense (PAD) districts. The model is used to analyze market behavior assumptions or shocks and to determine the effect on market price, demand, and stock level.

1993-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling changzheng liu" 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

On Modeling MPEG Video Traffics  

E-Print Network (OSTI)

This paper traces the development/evolution of three of our recently proposed MPEG coded video traffic models, that can capture the statistical properties of MPEG video data. The basic ideas behind these models are to decompose an MPEG compressed video sequence into several parts according to motion /scene complexity or data structure. Each part is described by a self-similar process. These different self-similar processes are then combined to form the respective models. In addition, Beta distribution is used to characterize the marginal cumulative distribution (CDF) of the self-similar processes. Comparison among the three models shows that the latest model (called the simple IPB composite model) is the most practical one in terms of accuracy and complexity. Simulations based on many real MPEG compressed movie sequences, including StarWars, have demonstrated that the simple model can capture the autocorrelation function (ACF) and the marginal CDF very closely.

Nirwan Ansari; Hai Liu; Yun Q. Shi; Senior Member; Hong Zhao

2002-01-01T23:59:59.000Z

462

Application of Improved Radiation Modeling to General Circulation Models  

SciTech Connect

This research has accomplished its primary objectives of developing accurate and efficient radiation codes, validating them with measurements and higher resolution models, and providing these advancements to the global modeling community to enhance the treatment of cloud and radiative processes in weather and climate prediction models. A critical component of this research has been the development of the longwave and shortwave broadband radiative transfer code for general circulation model (GCM) applications, RRTMG, which is based on the single-column reference code, RRTM, also developed at AER. RRTMG is a rigorously tested radiation model that retains a considerable level of accuracy relative to higher resolution models and measurements despite the performance enhancements that have made it possible to apply this radiation code successfully to global dynamical models. This model includes the radiative effects of all significant atmospheric gases, and it treats the absorption and scattering from liquid and ice clouds and aerosols. RRTMG also includes a statistical technique for representing small-scale cloud variability, such as cloud fraction and the vertical overlap of clouds, which has been shown to improve cloud radiative forcing in global models. This development approach has provided a direct link from observations to the enhanced radiative transfer provided by RRTMG for application to GCMs. Recent comparison of existing climate model radiation codes with high resolution models has documented the improved radiative forcing capability provided by RRTMG, especially at the surface, relative to other GCM radiation models. Due to its high accuracy, its connection to observations, and its computational efficiency, RRTMG has been implemented operationally in many national and international dynamical models to provide validated radiative transfer for improving weather forecasts and enhancing the prediction of global climate change.

Michael J Iacono

2011-04-07T23:59:59.000Z

463

SOPHIA: a Modeling Language for Model-Based Safety Engineering  

E-Print Network (OSTI)

Development of increasingly more sophisticated safety-critical embedded systems requires new paradigms, since manual approaches are reaching their limits. Experiences have shown that model-driven engineering is an approach that can overcome many of these limitations. Using model-based approaches however lead to new challenges regarding the cohesive integration of both safety engineering and system design along the system development process. In this paper, we present SOPHIA, a modelling language that formalizes safety-related concepts and their relations with system modelling constructs. We particularly focus on accident models and on how to achieve confidence that the frequency of possible accidents will be tolerable. In addition, we explore some strategies to implement SOPHIA as a complementary modelling language to SysML and reuse some useful constructs form the UML MARTE profile.

Daniela Cancila; Francois Terrier; Fabien Belmonte; Hubert Dubois; Huascar Espinoza; Sbastien Grard; Arnaud Cuccuru

2009-01-01T23:59:59.000Z

464

B.: System Model-Based Definition of Modeling Language Semantics  

E-Print Network (OSTI)

Abstract. In this paper, we present an approach to define the semantics for object-oriented modeling languages. One important property of this semantics is to support underspecified and incomplete models. To this end, semantics is given as predicates over elements of the semantic domain. This domain is called the system model which is a general declarative characterization of object systems. The system model is very detailed since it captures various relevant structural, behavioral, and interaction aspects. This allows us to re-use the system model as a domain for various kinds of object-oriented modeling languages. As a major consequence, the integration of language semantics is straight-forward. The whole approach is supported by tools that do not constrain the semantics definitions expressiveness and flexibility while making it machinecheckable. 1

Hans Grnniger; Jan Oliver Ringert; Bernhard Rumpe; Lehrstuhl Informatik (softwaretechnik) Rwth Aachen

2009-01-01T23:59:59.000Z

465

Alternative methods of modeling wind generation using production costing models  

DOE Green Energy (OSTI)

This paper examines the methods of incorporating wind generation in two production costing models: one is a load duration curve (LDC) based model and the other is a chronological-based model. These two models were used to evaluate the impacts of wind generation on two utility systems using actual collected wind data at two locations with high potential for wind generation. The results are sensitive to the selected wind data and the level of benefits of wind generation is sensitive to the load forecast. The total production cost over a year obtained by the chronological approach does not differ significantly from that of the LDC approach, though the chronological commitment of units is more realistic and more accurate. Chronological models provide the capability of answering important questions about wind resources which are difficult or impossible to address with LDC models.

Milligan, M.R. [National Renewable Energy Lab., Golden, CO (United States); Pang, C.K. [P Plus Corp., Cupertino, CA (United States)

1996-08-01T23:59:59.000Z

466

San Joaquin-Tulare Conjunctive Use Model: Detailed model description  

DOE Green Energy (OSTI)

The San Joaquin - Tulare Conjunctive Use Model (SANTUCM) was originally developed for the San Joaquin Valley Drainage Program to evaluate possible scenarios for long-term management of drainage and drainage - related problems in the western San Joaquin Valley of California. A unique aspect of this model is its coupling of a surface water delivery and reservoir operations model with a regional groundwater model. The model also performs salinity balances along the tributaries and along the main stem of the San Joaquin River to allow assessment of compliance with State Water Resources Control Board water quality objectives for the San Joaquin River. This document is a detailed description of the various subroutines, variables and parameters used in the model.

Quinn, N.W.T.

1992-03-01T23:59:59.000Z

467

Definition of gust model concepts and review of gust models  

DOE Green Energy (OSTI)

Four models are examined which attempt to describe wind fluctuations in relation to a wind energy conversion system (WECS) that is subjected to these fluctuations observed from a fixed location within the atmospheric boundary layer. The primary purpose of this examination is to provide a basis for understanding present and future developments in gust and gust-rise models. The examination is accomplished by identifying the gust definitions used in the models and relating them to a basic definition given.

Powell, D.C.; Connell, J.R.

1980-06-01T23:59:59.000Z

468

Solar Advisor Model; Session: Modeling and Analysis (Presentation)  

DOE Green Energy (OSTI)

This project supports the Solar America Initiative by: (1) providing a consistent framework for analyzing and comparing power system costs and performance across the range of solar technologies and markets, PV, solar heat systems, CSP, residential, commercial and utility markets; (2) developing and validating performance models to enable accurate calculation of levelized cost of energy (LCOE); (3) providing a consistent modeling platform for all TPP's; and (4) supporting implementation and usage of cost models.

Blair, N.

2008-04-01T23:59:59.000Z

469

Model documentation Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1  

Science Conference Proceedings (OSTI)

The Natural Gas Transmission and Distribution Model (NGTDM) of the National Energy Modeling System is developed and maintained by the Energy Information Administration (EIA), Office of Integrated Analysis and Forecasting. This report documents the archived version of the NGTDM that was used to produce the natural gas forecasts presented in the Annual Energy Outlook 1996, (DOE/EIA-0383(96)). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic approach, and provides detail on the methodology employed. Previously this report represented Volume I of a two-volume set. Volume II reported on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.

NONE

1996-02-26T23:59:59.000Z

470

UZ Flow Models and Submodels  

SciTech Connect

The purpose of this report is to document the unsaturated zone (UZ) flow models and submodels, as well as the flow fields that have been generated using the UZ flow model(s) of Yucca Mountain, Nevada. In this report, the term ''UZ model'' refers to the UZ flow model and the several submodels, which include tracer transport, temperature or ambient geothermal, pneumatic or gas flow, and geochemistry (chloride, calcite, and strontium) submodels. The term UZ flow model refers to the three-dimensional models used for calibration and simulation of UZ flow fields. This work was planned in the ''Technical Work Plan (TWP) for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Section 1.2.7). The table of included Features, Events, and Processes (FEPs), Table 6.2-11, is different from the list of included FEPs assigned to this report in the ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Table 2.1.5-1), as discussed in Section 6.2.6. The UZ model has revised, updated, and enhanced the previous UZ model (BSC 2001 [DIRS 158726]) by incorporating the repository design with new grids, recalibration of property sets, and more comprehensive validation effort. The flow fields describe fracture-fracture, matrix-matrix, and fracture-matrix liquid flow rates, and their spatial distributions as well as moisture conditions in the UZ system. These three-dimensional UZ flow fields are used directly by Total System Performance Assessment (TSPA). The model and submodels evaluate important hydrogeologic processes in the UZ as well as geochemistry and geothermal conditions. These provide the necessary framework to test hypotheses of flow and transport at different scales, and predict flow and transport behavior under a variety of climatic conditions. In addition, the limitations of the UZ model are discussed in Section 8.11.

Y. Wu

2004-11-01T23:59:59.000Z

471

PETROLEUM MARKET MODEL OF THE NATIONAL ENERGY MODELING SYSTEM Part ...  

U.S. Energy Information Administration (EIA)

NATIONAL ENERGY MODELING SYSTEM . Part 2 - Appendices B thru J . ... the PMM LP and the re-optimization of the LP matrix are accomplished by executing FORTRAN callable

472

Coal Market Module of the National Energy Modeling System Model ...  

U.S. Energy Information Administration (EIA)

Appendix 3.E. Optimization and Modeling Library (OML) ... Energy Outlook 2002 Projections of Coal Production, Distribution, and Prices for the National

473

VEPCO network model reconciliation of LANL and MZA model data  

SciTech Connect

The LANL DC load flow model of the VEPCO transmission network shows 210 more substations than the AC load flow model produced by MZA utility Consultants. MZA was requested to determine the source of the difference. The AC load flow model used for this study utilizes 2 standard network algorithms (Decoupled or Newton). The solution time of each is affected by the number of substations. The more substations included, the longer the model will take to solve. In addition, the ability of the algorithms to converge to a solution is affected by line loadings and characteristics. Convergence is inhibited by numerous lightly loaded and electrically short lines. The MZA model reduces the total substations to 343 by creating equivalent loads and generation. Most of the omitted substations are lightly loaded and rated at 115 kV. The MZA model includes 16 substations not included in the LANL model. These represent new generation including Non-Utility Generator (NUG) sites, additional substations and an intertie (Wake, to CP and L). This report also contains data from the Italian State AC power flow model and the Duke Power Company AC flow model.

NONE

1992-12-15T23:59:59.000Z

474

Agent-based modeling and systems dynamics model reproduction.  

Science Conference Proceedings (OSTI)

Reproducibility is a pillar of the scientific endeavour. We view computer simulations as laboratories for electronic experimentation and therefore as tools for science. Recent studies have addressed model reproduction and found it to be surprisingly difficult to replicate published findings. There have been enough failed simulation replications to raise the question, 'can computer models be fully replicated?' This paper answers in the affirmative by reporting on a successful reproduction study using Mathematica, Repast and Swarm for the Beer Game supply chain model. The reproduction process was valuable because it demonstrated the original result's robustness across modelling methodologies and implementation environments.

North, M. J.; Macal, C. M. (Decision and Information Sciences)

2009-01-01T23:59:59.000Z

475

Petroleum Market Model of the National Energy Modeling System  

Science Conference Proceedings (OSTI)

The purpose of this report is to define the objectives of the Petroleum Market Model (PMM), describe its basic approach, and provide detail on how it works. This report is intended as a reference document for model analysts, users, and the public. The PMM models petroleum refining activities, the marketing of petroleum products to consumption regions. The production of natural gas liquids in gas processing plants, and domestic methanol production. The PMM projects petroleum product prices and sources of supply for meeting petroleum product demand. The sources of supply include crude oil, both domestic and imported; other inputs including alcohols and ethers; natural gas plant liquids production; petroleum product imports; and refinery processing gain. In addition, the PMM estimates domestic refinery capacity expansion and fuel consumption. Product prices are estimated at the Census division level and much of the refining activity information is at the Petroleum Administration for Defense (PAD) District level. This report is organized as follows: Chapter 2, Model Purpose; Chapter 3, Model Overview and Rationale; Chapter 4, Model Structure; Appendix A, Inventory of Input Data, Parameter Estimates, and Model Outputs; Appendix B, Detailed Mathematical Description of the Model; Appendix C, Bibliography; Appendix D, Model Abstract; Appendix E, Data Quality; Appendix F, Estimation methodologies; Appendix G, Matrix Generator documentation; Appendix H, Historical Data Processing; and Appendix I, Biofuels Supply Submodule.

NONE

1997-01-01T23:59:59.000Z

476

The model electric restaurant  

SciTech Connect

Starting in December 1987, the Electric Power Research Institute (EPRI) and Southern California Edison (SCE) initiated a project with the Pennsylvania State University (Penn State) to study the energy performance of restaurants. Penn State formed the Restaurant Subsystems Technology (REST) project team to conduct the Model Restaurant Project. For the first phase of the project, the REST team was charged with the responsibility of identifying and investigating electric technologies to improve energy efficiency and to reduce peak demand in new restaurants. Energy and economic analyses were performed to determine whether these electric technologies are competitive with existing technologies in gas/electric restaurants and whether they are improvements to current technologies in all-electric restaurants. Technologies for heating and cooling, lighting, sanitation, food preparation, ventilation, and refrigeration were studied. This report contains detailed monthly information about the restaurants that were simulated. The results are presented on a monthly basis so the reader can study performance during all seasons. However, this second volume is not a stand alone'' document. To fully understand the information presented here, the reader must have a copy of Volume 1 and be familiar with the terminology used to describe the various restaurants and the process used to analyze the buildings.

Frey, D.J.; Oatman, P.A. (Architectural Energy Corp., Boulder, CO (USA)); Claar, C.N. (Pennsylvania State Univ., University Park, PA (USA))

1990-12-01T23:59:59.000Z

477

Model of Water  

E-Print Network (OSTI)

Ewald summation and physically equivalent methods such as particle-mesh Ewald, kubic-harmonic expansions, or Lekner sums are commonly used to calculate long-range electrostatic interactions in computer simulations of polar and charged substances. The calculation of pressures in such systems is investigated. We find that the virial and thermodynamic pressures differ because of the explicit volume dependence of the effective, resummed Ewald potential. The thermodynamic pressure, obtained from the volume derivative of the Helmholtz free energy, can be expressed easily for both ionic and rigid molecular systems. For a system of rigid molecules, the electrostatic energy and the forces at the atom positions are required, both of which are readily available in molecular dynamics codes. We then calculate the virial and thermodynamic pressures for the extended simple point charge (SPC/E) water model at standard conditions. We find that the thermodynamic pressure exhibits considerably less system size dependence than the virial pressure. From an analysis of the cross correlation between the virial and thermodynamic pressure, we conclude that the thermodynamic pressure should be used to drive volume fluctuations in constant-pressure simulations. 2 I.

Gerhard Hummer; Niels Grnbech-jensen; Martin Neumann

1998-01-01T23:59:59.000Z

478

CERTS customer adoption model  

SciTech Connect

This effort represents a contribution to the wider distributed energy resources (DER) research of the Consortium for Electric Reliability Technology Solutions (CERTS, http://certs.lbl.gov) that is intended to attack and, hopefully, resolve the technical barriers to DER adoption, particularly those that are unlikely to be of high priority to individual equipment vendors. The longer term goal of the Berkeley Lab effort is to guide the wider technical research towards the key technical problems by forecasting some likely patterns of DER adoption. In sharp contrast to traditional electricity utility planning, this work takes a customer-centric approach and focuses on DER adoption decision making at, what we currently think of as, the customer level. This study reports on Berkeley Lab's second year effort (completed in Federal fiscal year 2000, FY00) of a project aimed to anticipate patterns of customer adoption of distributed energy resources (DER). Marnay, et al., 2000 describes the earlier FY99 Berkeley Lab work. The results presented herein are not intended to represent definitive economic analyses of possible DER projects by any means. The paucity of data available and the importance of excluded factors, such as environmental implications, are simply too important to make such an analysis possible at this time. Rather, the work presented represents a demonstration of the current model and an indicator of the potential to conduct more relevant studies in the future.

Rubio, F. Javier; Siddiqui, Afzal S.; Marnay, Chris; Hamachi,Kristina S.

2000-03-01T23:59:59.000Z

479

NETL: Computer Software & Databases - Predictive Models  

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

Predictive Models DOEBC-881SP. EOR Predictive Models: Handbook for Personal Computer Versions of Enhanced Oil Recovery Predictive Models. BPO Staff. February 1988. 76 pp. NTIS...

480

Model Predictive Control for Energy Efficient Buildings  

E-Print Network (OSTI)

P. Haves et al. Model Predictive Control of HVAC Systems:Bilinear Model Predictive Control of a HVAC System Usingof model predictive control algorithms for HVAC systems.

Ma, Yudong

2012-01-01T23:59:59.000Z

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


481

MODELING IN COMPUTATIONAL BIOLOGY NOTES OF ... - CECM  

E-Print Network (OSTI)

MODELING IN COMPUTATIONAL BIOLOGY. NOTES OF WEEK 9. 1. Fully Observed Markov Model: F. Sometimes we want to model a process of generating...

482

Quality Assurance of Computational Model  

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

of Computational of Computational Models Presented at the Annual Department of Presented at the Annual Department of Energy Quality Council Meeting Subir K. Sen Sub . Se Office of Quality Assurance, HS-33 December 7, 2011 Outline Outline * Introduction Introduction * GAO Report 11-143 i l h C il * National Research Council Focus * DOE Model Validation/Performance * Summary 2 Introduction Introduction * Computer models are used in EM's massive Computer models are used in EM s massive clean up effort to model physical and biogeochemical processes biogeochemical processes. * Results from these computational models are often used to make costly cleanup decisions often used to make costly cleanup decisions including selection, performance assessment and annual

483

Simple Models of Superconformal Flavor  

E-Print Network (OSTI)

The observed hierarchy of fermion masses and mixings may be generated by renormalization group flow if the Standard Model is coupled to a near-conformal sector at high energies. If the conformal sector is supersymmetric, these effects are rendered calculable by a combination of superconformal symmetry and a-maximization. The viability of such models depends on whether they generate the observed fermion mass hierarchy before the Standard Model gauge couplings hit a Landau pole. Here we construct a variety of simple vector-like models of superconformal flavor, including both ten-centered and democratic variations. We discuss in detail the subtleties of applying the a-maximization procedure to determine anomalous dimensions of Standard Model fields. We find that a wide range of models based on SU(N) or Sp(2N) SQCD with fundamental and adjoint matter are viable theories of superconformal flavor.

Craig, Nathaniel

2010-01-01T23:59:59.000Z

484

Distillate Market Model documentation report  

SciTech Connect

The purpose of this report is to define the objectives of the Distillate Market Model (DMM), describe its basic approach, and to provide details on model functions. This report is intended as a reference document for model analysts, users, and the general public. Documentation of the model is in accordance with EIA`s legal obligation to provide adequate documentation in support of its models. The DMM performs a short-term (6- to 9-month) forecast of demand and retail price for distillate fuel oil in the national US market; it also calculates the end-of-month stock level during the term of the forecast. The model is used to analyze certain market behavior assumptions or shocks and to determine the effect on retail market price, demand, and stock level.

1993-12-01T23:59:59.000Z

485

Trichromatic Model of Daylight Variation  

E-Print Network (OSTI)

Visual recognition of colors in outdoor imagery is a difficult task in artificial vision, chiefly because of natural chromatic variation. To accurately predict an object's color, it is necessary to have an accurate model of daylight as a function of spatial, temporal and weather conditions, as well as the object's surface reflectance parameters, and all relevant camera parameters. Preliminary studies indicate that in a scenario involving outdoor robotic vehicles, such color prediction (and consequently, recognition) may be achieved, given reasonably accurate models of all of the above. This paper addresses the first link in the chain of models: building a usable model of daylight. Studies done in the sixties under the International Commission for Illumination Colorometry Committee (ICI/ CIE) to model the shift in natural illumination resulted in fairly accurate models which are still valid, and used as a standard of illumination by daylight. However, these studies are rarely used in ou...

Shashi Buluswar; Bruce Draper

1995-01-01T23:59:59.000Z

486

Assessment of Molecular Modeling & Simulation  

Science Conference Proceedings (OSTI)

This report reviews the development and applications of molecular and materials modeling in Europe and Japan in comparison to those in the United States. Topics covered include computational quantum chemistry, molecular simulations by molecular dynamics and Monte Carlo methods, mesoscale modeling of material domains, molecular-structure/macroscale property correlations like QSARs and QSPRs, and related information technologies like informatics and special-purpose molecular-modeling computers. The panel's findings include the following: The United States leads this field in many scientific areas. However, Canada has particular strengths in DFT methods and homogeneous catalysis; Europe in heterogeneous catalysis, mesoscale, and materials modeling; and Japan in materials modeling and special-purpose computing. Major government-industry initiatives are underway in Europe and Japan, notably in multi-scale materials modeling and in development of chemistry-capable ab-initio molecular dynamics codes.

None

2002-01-03T23:59:59.000Z

487

Assessment of Water Balance Models  

Science Conference Proceedings (OSTI)

Power generating plants perform water balance studies for a variety of reasons, and they use a range of different modeling approaches and tools to accomplish their specific objectives. This EPRI report presents the results of a project conducted with the objective of providing the industry and the interested public with an assessment of the value of water balance models to conserve and manage water. The report provides an overview of the state-of-the-art water balance models and identifies ...

2013-10-29T23:59:59.000Z

488

Principles of models based engineering  

SciTech Connect

This report describes a Models Based Engineering (MBE) philosophy and implementation strategy that has been developed at Los Alamos National Laboratory`s Center for Advanced Engineering Technology. A major theme in this discussion is that models based engineering is an information management technology enabling the development of information driven engineering. Unlike other information management technologies, models based engineering encompasses the breadth of engineering information, from design intent through product definition to consumer application.

Dolin, R.M.; Hefele, J.

1996-11-01T23:59:59.000Z

489

Lattice Modeling for SPEAR3  

SciTech Connect

We use measured or simulated magnetic fields for dipoles and quadrupoles to build a lattice model for SPEAR3. In a non-symplectic approach the phase space coordinate mapping on the fields is based on numerical integration of the equation of motion. In a symplectic approach we approximate the fields with proper fringe field models. Complication of the use of rectangular gradient dipoles in SPEAR3 is considered. Results of the model is compared to measurements on the real machine.

Huang, Xiaobiao; /SLAC; Safranek, James; /SLAC

2012-06-28T23:59:59.000Z

490

Research Highlight  

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

Entrainment Rate in Shallow Cumuli: Probabilistic Distribution and Entrainment Rate in Shallow Cumuli: Probabilistic Distribution and Dependence on Dry Air Sources Download a printable PDF Submitter: Liu, Y., Brookhaven National Laboratory Lu, C., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Lu C, Y Liu, S Niu, and AM Vogelmann. 2012. "Lateral entrainment rate in shallow cumuli: Dependence on dry air sources and probability density functions." Geophysical Research Letters, 39, L20812, doi:10.1029/2012GL053646. Probability density functions (PDFs) of entrainment rate (λ) for different dry air sources in eight cumulus flights. The rate at which cloud engulfs dry air (entrainment rate) has proven to be one of the strongest controls on the climate sensitivity of climate models;

491

Bench-Scale Cross Flow Filtration of  

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

2 2 Evaluation of A New Mixed-Phase Cloud Microphysics Parameterization with the NCAR Climate Atmospheric Model (CAM3) and ARM Observations Fourth Quarter 2007 ARM Metric Report September 2007 Xiaohong Liu and Steven J. Ghan Pacific Northwest National Laboratory Richland, Washington Shaocheng Xie, James Boyle, and Stephen A. Klein Lawrence Livermore National Laboratory Livermore, California Work supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research X. Liu et al., September 2007, DOE/SC-ARM/P-07-012 Summary Mixed-phase clouds are composed of a mixture of cloud droplets and ice crystals. The cloud microphysics in mixed-phase clouds can significantly impact cloud optical depth, cloud radiative forcing,

492

BNL | Environmental Sciences Publications 2012  

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

2014 Environmental Sciences Department Publications 2014 Environmental Sciences Department Publications Articles Lu, C., Liu, Y., Niu, S., and Zhao, L. Examination of microphysical relationships and corresponding microphysical processes in warm fogs. Atmos. Environ., submitted (2011). [BNL-96496-2011-JA] Lu, C., Liu, Y., Niu, S., Krueger, S., and Wagner, T. Investigation of the Relationship between Homogeneous Mixing Degree and Transition Scale Number with the Explicit Mixing Parcel Model. Environ. Res. Lett., submitted (2012). [BNL-98168-2012-JA] Zhang, C., Malhotra, S. V., and Francis, A. J. Toxicity of ionic liquids to Clostridium sp. and effects on uranium biosorption. J. Hazardous Materials 264, 246-253, doi:10.1016/j.jhazmat.2013.11.003 (2014). [BNL-103573-2014-JA] Meetings,Proceedings and Abstracts

493

Charge  

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

1 1 Mixed-Phase Cloud Microphysics for Global Climate Models First Quarter 2007 ARM Metric Report January 2007 Xiaohong Liu and Steven J. Ghan Pacific Northwest National Laboratory Richland, Washington Work supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research X. Liu and S.J. Ghan, DOE/SC-ARM-0701 iii Summary Mixed-phase clouds are composed of a mixture of cloud droplets and ice crystals. The partitioning of condensed water into liquid droplets and ice crystals in clouds varies throughout the life cycle of clouds, with droplets forming initially but crystals dominating later as ice forms first by crystal nucleation and then by vapor deposition. This report documents an ice nucleation

494

Model documentation report: Transportation sector model of the National Energy Modeling System  

DOE Green Energy (OSTI)

Over the past year, several modifications have been made to the NEMS Transportation Model, incorporating greater levels of detail and analysis in modules previously represented in the aggregate or under a profusion of simplifying assumptions. This document is intended to amend those sections of the Model Documentation Report (MDR) which describe these superseded modules. Significant changes have been implemented in the LDV Fuel Economy Model, the Alternative Fuel Vehicle Model, the LDV Fleet Module, and the Highway Freight Model. The relevant sections of the MDR have been extracted from the original document, amended, and are presented in the following pages. A brief summary of the modifications follows: In the Fuel Economy Model, modifications have been made which permit the user to employ more optimistic assumptions about the commercial viability and impact of selected technological improvements. This model also explicitly calculates the fuel economy of an array of alternative fuel vehicles (AFV`s) which are subsequently used in the estimation of vehicle sales. In the Alternative Fuel Vehicle Model, the results of the Fuel Economy Model have been incorporated, and the program flows have been modified to reflect that fact. In the Light Duty Vehicle Fleet Module, the sales of vehicles to fleets of various size are endogenously calculated in order to provide a more detailed estimate of the impacts of EPACT legislation on the sales of AFV`s to fleets. In the Highway Freight Model, the previous aggregate estimation has been replaced by a detailed Freight Truck Stock Model, where travel patterns, efficiencies, and energy intensities are estimated by industrial grouping. Several appendices are provided at the end of this document, containing data tables and supplementary descriptions of the model development process which are not integral to an understanding of the overall model structure.

NONE

1997-02-01T23:59:59.000Z

495

Generic Model Host System Design  

SciTech Connect

There are many simulation codes for accelerator modelling; each one has some strength but not all. A platform which can host multiple modelling tools would be ideal for various purposes. The model platform along with infrastructure support can be used not only for online applications but also for offline purposes. Collaboration is formed for the effort of providing such a platform. In order to achieve such a platform, a set of common physics data structure has to be set. Application Programming Interface (API) for physics applications should also be defined within a model data provider. A preliminary platform design and prototype is discussed.

Chu, Chungming; /SLAC; Wu, Juhao; /SLAC; Qiang, Ji; /LBL, Berkeley; Shen, Guobao; /Brookhaven

2012-06-22T23:59:59.000Z

496

Integrated Modeling of Microbial Ecology  

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

Modeling of Microbial Ecology in Subsurface Environments Speaker: Dr. Krishna Mahadevan Department of Chemical Engineering and Applied Chemistry University of Toronto Date:...

497

Numerical wind speed simulation model  

DOE Green Energy (OSTI)

A relatively simple stochastic model for simulating wind speed time series that can be used as an alternative to time series from representative locations is described in this report. The model incorporates systematic seasonal variation of the mean wind, its standard deviation, and the correlation speeds. It also incorporates systematic diurnal variation of the mean speed and standard deviation. To demonstrate the model capabilities, simulations were made using model parameters derived from data collected at the Hanford Meteorology Station, and results of analysis of simulated and actual data were compared.

Ramsdell, J.V.; Athey, G.F.; Ballinger, M.Y.

1981-09-01T23:59:59.000Z

498

Transport Properties for Combustion Modeling  

E-Print Network (OSTI)

a critical role in combustion processes just as chemicalparameters are essential for combustion modeling; molecularwith Application to Combustion. Transport Theor Stat 2003;

Brown, N.J.

2010-01-01T23:59:59.000Z

499

Macro-System Model (Poster)  

DOE Green Energy (OSTI)

Poster presentation on Macro-System Model for the 2005 Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Review held in Arlington, Virginia on May 23-26, 2005

Ruth, M.

2005-05-01T23:59:59.000Z

500

The Universe Adventure - Early Models  

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

Early Models of the Universe Ready for Blast-off Space exploration missions contribute greatly to our understanding of the Universe. With our new understanding of the fundamental...