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


1

Comparing Local and Global Software Effort Estimation Models Reflections on a Systematic Review  

E-Print Network [OSTI]

protocols. Keywords: D.2.9.b Cost estimation, project effort prediction, systematic review, empirical of practice in the form of benchmarking, assessment of current activities, estimation of future tasksComparing Local and Global Software Effort Estimation Models ≠ Reflections on a Systematic Review

2

Global expansion strategies for software firms  

E-Print Network [OSTI]

The business competition in the software industry is increasingly becoming a global competition. In this era with a fast-paced innovative environment, strategy plays an important role for managers in software companies in ...

Yoden, Michihiko

2014-01-01T23:59:59.000Z

3

Managing Software Development for Global Health  

E-Print Network [OSTI]

too much refrigeration. #12;Cold chain description · Storage of vaccines from national level to pointManaging Software Development for Global Health Richard Anderson #12;Outline · PATH · The Cold and was in serious trouble · Applying software industry best practices is leading to a positive outcome 3/10/2010 CSE

Anderson, Richard

4

Using Agile Practices in Global Software Development: A Systematic Review  

E-Print Network [OSTI]

Using Agile Practices in Global Software Development: A Systematic Review Emam Hossain1 Muhammad There is a growing interest in applying agile approaches in Global Software Development (GSD) projects. Recently;1 Introduction The trend in the recent software development industry is to move towards Global Software

New South Wales, University of

5

Software Reliability Modeling James LEDOUX  

E-Print Network [OSTI]

Software Reliability Modeling James LEDOUX Centre de Math¬īematiques INSA & IRMAR 20 Avenue des an overview of some aspects of Software Reliability (SR) engineering. Most systems are now driven by software in reliability engineering, particularly in terms of cost. But predicting software reliability is not easy

Paris-Sud XI, Université de

6

Energy Modeling Software  

Broader source: Energy.gov [DOE]

Information from energy simulation software is critical in the design of energy-efficient commercial buildings. The tools listed on this page are the product of Commercial Buildings Integration...

7

From Local to Global Coordination: Lessons from Software Reuse  

E-Print Network [OSTI]

From Local to Global Coordination: Lessons from Software Reuse Rebecca E. Grinter Xerox PARC 3333 Coyote Hill Road Palo Alto, CA 94304 USA grinter@parc.xerox.com http://www.parc by making it possible to share code. However, software reuse in practice has proved much harder. This paper

Grinter, Rebecca Elizabeth

8

Software Modeling and Verification Professors  

E-Print Network [OSTI]

Software Modeling and Verification Staff · Professors Prof. Dr. Ir. Joost-Pieter Katoen Prof. em) Mark Timmer (Uni Twente, NL) Dr. Olga Tveretina (Karlsruhe University, D) Ralf Wimmer (Universität

√Ābrah√°m, Erika

9

Managing Software Development for Global Health  

E-Print Network [OSTI]

refrigeration. Cold chain description · Storage of vaccines from national level to point of delivery · Manage · The Cold Chain · National Vaccine Forecasting · CCEM 1.0: In house development · CCEM 2.1: Out sourcing and was in serious trouble · Applying software industry best practices is leading to a positive outcome 3

Anderson, Richard

10

Global Software Development at Siemens: Experience from Nine Projects  

E-Print Network [OSTI]

Global Software Development at Siemens: Experience from Nine Projects James D. Herbsleb Carnegie@cs.cmu.edu Daniel J. Paulish, Matthew Bass Siemens Corporate Research 755 College Road East Princeton, NJ, USA 08540 +1 609 734 6500 daniel.paulish,Matthew.Bass@siemens.com ABSTRACT We report on the experiences

Herbsleb, James D.

11

Global ice sheet modeling  

SciTech Connect (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

12

Cost Model and Cost Estimating Software  

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

This chapter discusses a formalized methodology is basically a cost model, which forms the basis for estimating software.

1997-03-28T23:59:59.000Z

13

Selected Papers from FOSS4G 2013: OSGeo's Global Conference for Open Source Geospatial Software  

E-Print Network [OSTI]

Selected Papers from FOSS4G 2013: OSGeo's Global Conference for Open Source Geospatial Software 1 Introduction Over the past decades, geospatial information technology has reached a significant level the submissions to the Academic Track of FOSS4G 2013, the global conference for Open Source Geospatial Software

KŲbben, Barend

14

From RUP to Scrum in Global Software Development: A Case Study Ramon Noordeloos  

E-Print Network [OSTI]

In Global Software Development (GSD), agile methods are gaining in popularity [1]. Agile methods can help imFrom RUP to Scrum in Global Software Development: A Case Study Ramon Noordeloos Dept. of Computer to the development pace and delivery time. Overall, we add to the body of knowledge in the field of distributed agile

van Vliet, Hans

15

Radiobiological modelling with MarCell software  

SciTech Connect (OSTI)

Jones introduced a bone marrow radiation cell kinetics model with great potential for application in the fields of health physics, radiation research, and medicine. However, until recently, only the model developers have been able to apply it because of the complex array of biological and physical assignments needed for evaluation of a particular radiation exposure protocol. The purpose of this article is to illustrate the use of MarCell (MARrow CELL Kinetics) software for MS-DOS, a user-friendly computer implementation of that mathematical model that allows almost anyone with an elementary knowledge of radiation physics and/or medical procedures to apply the model. A hands-on demonstration of the software will be given by guiding the user through evaluation of a medical total body irradiation protocol and a nuclear fallout scenario. A brief overview of the software is given in the Appendix.

Hasan, J.S.; Jones, T.D.

1996-10-01T23:59:59.000Z

16

Nuclear Energy Advanced Modeling and Simulation (NEAMS) Software...  

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

Software Verification and Validation (V&V) Plan Requirements Nuclear Energy Advanced Modeling and Simulation (NEAMS) Software Verification and Validation (V&V) Plan Requirements...

17

Model Checking for Software Architectures  

E-Print Network [OSTI]

-Dulay-Eisenbach-Kramer-95] ­ -calculus + FSP ­ LTSA (LTL properties) #12;6EWSA 2004 (May 21-22, St Andrews, Scotland) Model

Joseph Fourier Grenoble-I, Université

18

The China-in-Global Energy Model  

E-Print Network [OSTI]

The China-in-Global Energy Model (C-GEM) is a global Computable General Equilibrium (CGE) model that captures the interaction of production, consumption and trade among multiple global regions and sectors Ė including five ...

Qi, T.

19

Parallel Seismic Ray Tracing in a Global Earth Model  

E-Print Network [OSTI]

1 Parallel Seismic Ray Tracing in a Global Earth Model Marc Grunberg * , Stéphane Genaud of the Earth interior, and seismic tomogra- phy is a means to improve knowledge in this #28;eld. In order present in this paper the de- sign of a software program implement- ing a fast seismic ray

Genaud, Stéphane

20

Model-based Quality Assurance of Automotive Software  

E-Print Network [OSTI]

Model-based Quality Assurance of Automotive Software Jan J√ľrjens1 , Daniel Reiss2 , David (Germany) #12;Jan J√ľrjens et al.: Model-based Quality Assurance of Automotive Software 2 The Problem (Meta. #12;Jan J√ľrjens et al.: Model-based Quality Assurance of Automotive Software 3 The Problem (Meta

Jurjens, Jan

Note: This page contains sample records for the topic "modeling software global" 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

``Climate Modelling & Global Change'' scientific report ``Climate Modelling & Global Change'' Team  

E-Print Network [OSTI]

``Climate Modelling & Global Change'' scientific report ``Climate Modelling & Global Change'' Team) : : : : : : : : : : : : : : : : : 6 2.2 Anthropogenic climate change studies: scenario experiments (96) : : : : : : : : : 7 2 following its creation, the ``Climate Modelling & Global Change'' team had to make its proofs in order

22

Functional Testing Protocols for Commercial Building Efficiency Baseline Modeling Software  

SciTech Connect (OSTI)

This document describes procedures for testing and validating proprietary baseline energy modeling software accuracy in predicting energy use over the period of interest, such as a month or a year. The procedures are designed according to the methodology used for public domain baselining software in another LBNL report that was (like the present report) prepared for Pacific Gas and Electric Company: ?Commercial Building Energy Baseline Modeling Software: Performance Metrics and Method Testing with Open Source Models and Implications for Proprietary Software Testing Protocols? (referred to here as the ?Model Analysis Report?). The test procedure focuses on the quality of the software?s predictions rather than on the specific algorithms used to predict energy use. In this way the software vendor is not required to divulge or share proprietary information about how their software works, while enabling stakeholders to assess its performance.

Jump, David; Price, Phillip N.; Granderson, Jessica; Sohn, Michael

2013-09-06T23:59:59.000Z

23

An Empirical Study of Global Software Development: Distance and Speed  

E-Print Network [OSTI]

Mockus Thomas A. Finholt Rebecca E. Grinter Bell Labs School of Information Xerox PARC Lucent +1 734 764 6131 +1 650 812 4818 {jherbsleb, audris}@lucent.com finholt@umich.edu grinter@parc survey data and data from the source code change management system to model the extent of delay

Grinter, Rebecca Elizabeth

24

International Environmental Modelling and Software Society (iEMSs) 2010 International Congress on Environmental Modelling and Software  

E-Print Network [OSTI]

on Environmental Modelling and Software Modelling for Environment's Sake, Fifth Biennial Meeting, Ottawa, CanadaInternational Environmental Modelling and Software Society (iEMSs) 2010 International Congress-based model of human-environment interaction and conflict in East Africa using the MASON agent

George Mason University

25

Cost Model and Cost Estimating Software - DOE Directives, Delegations...  

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

is basically a cost model, which forms the basis for estimating software. g4301-1chp22.pdf -- PDF Document, 190 KB Writer: John Makepeace Subjects: Administration...

26

International Environmental Modelling and Software Society (iEMSs) 2012 International Congress on Environmental Modelling and Software  

E-Print Network [OSTI]

International Environmental Modelling and Software Society (iEMSs) 2012 International Congress on Environmental Modelling and Software Managing Resources of a Limited Planet, Sixth Biennial Meeting, Leipzig://www.iemss.org/society/index.php/iemss-2012-proceedings Developing and integrating a simulation model of water resources supply and demand

Boyer, Edmond

27

Institute for Software Technology Model-Based Testing  

E-Print Network [OSTI]

t Institute for Software Technology Model-Based Testing Ausgewählte Kapitel Softwaretechnologie 2 2013/14 B.K. Aichernig Model-Based Testing 1 / 38 #12;t Institute for Software Technology Testing Testing: checking or measuring some quality characteristics of an executing system by performing

28

Seamlessly Integrating Software & Hardware Modelling for Large-Scale Systems  

E-Print Network [OSTI]

Engineering, with the math- ematical modelling approach, Modelica, to address the software/hardware integration problem. The environment and hardware components are modelled in Modelica and integrated software-hardware codesign, large-scale sys- tems, Behavior Engineering, Modelica. 1. Introduction

Zhao, Yuxiao

29

``Climate Modelling & Global Change'' scientific report 1 ``Climate Modelling & Global Change'' Team  

E-Print Network [OSTI]

``Climate Modelling & Global Change'' scientific report 1 ``Climate Modelling & Global Change of the tropical climate : : : : : : : : : : : : : : : : : : : : : 6 2.2 Short≠term variability studies : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 8 2.3 Climate drift sensitivity studies

30

Model-Based Quality Assurance of Automotive Software  

E-Print Network [OSTI]

Model-Based Quality Assurance of Automotive Software Jan J√ľrjens1 , Daniel Rei√?2 , and David, Germany Abstract. Software in embedded (e.g. automotive) systems requires a high level of reliability to the automotive sector, characterized by strict safety requirements to com- ponents of a motor vehicle (see [5, 16

Jurjens, Jan

31

Green Software Services: From Requirements to Business Models  

E-Print Network [OSTI]

Green Software Services: From Requirements to Business Models Schahram Dustdar, Fei Li, Hong years, green software research is gaining momentum because of the acute need for sustainable develop- ment. Most past research has been focused on the definitions, metrics and technical solutions for green

Dustdar, Schahram

32

A Model and Selected Instances of Green and Sustainable Software  

E-Print Network [OSTI]

A Model and Selected Instances of Green and Sustainable Software Markus Dick, Stefan Naumann the environmental as- pects of sustainability considering computer hardware, there is a lack of mod- els the basis towards a definition of the term "Sustainable Software", an outline of a process and lifecycle

Paris-Sud XI, Université de

33

Model Checking for Software Architectures Radu Mateescu  

E-Print Network [OSTI]

] are essential engineering artifacts used in the de- sign process of complex software systems. They specify alge- bras, the most prominent ones being Wright [2] and Darwin [17]. Wright is based upon Csp, thus (configuration and coordination) and Fsp (a dialect of Csp) to describe the behaviour of individual components

Joseph Fourier Grenoble-I, Universitť

34

Supercomputers Fuel Global High-Resolution Climate Models  

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

Supercomputers Fuel Global High-Resolution Climate Models Supercomputers Fuel Global High-Resolution Climate Models Berkeley Lab Researcher Says Climate Science is Entering New...

35

Software Requirements Specification Verifiable Fuel Cycle Simulation (VISION) Model  

SciTech Connect (OSTI)

The purpose of this Software Requirements Specification (SRS) is to define the top-level requirements for a Verifiable Fuel Cycle Simulation Model (VISION) of the Advanced Fuel Cycle (AFC). This simulation model is intended to serve a broad systems analysis and study tool applicable to work conducted as part of the AFCI (including costs estimates) and Generation IV reactor development studies.

D. E. Shropshire; W. H. West

2005-11-01T23:59:59.000Z

36

A Simulation Model for the Waterfall Software Development Life Cycle  

E-Print Network [OSTI]

Software development life cycle or SDLC for short is a methodology for designing, building, and maintaining information and industrial systems. So far, there exist many SDLC models, one of which is the Waterfall model which comprises five phases to be completed sequentially in order to develop a software solution. However, SDLC of software systems has always encountered problems and limitations that resulted in significant budget overruns, late or suspended deliveries, and dissatisfied clients. The major reason for these deficiencies is that project directors are not wisely assigning the required number of workers and resources on the various activities of the SDLC. Consequently, some SDLC phases with insufficient resources may be delayed; while, others with excess resources may be idled, leading to a bottleneck between the arrival and delivery of projects and to a failure in delivering an operational product on time and within budget. This paper proposes a simulation model for the Waterfall development proce...

Bassil, Youssef

2012-01-01T23:59:59.000Z

37

Adaptive Software Testing in the Context of an Improved Controlled Markov Chain Model  

E-Print Network [OSTI]

Adaptive Software Testing in the Context of an Improved Controlled Markov Chain Model Hai Hu, Chang@buaa.edu.cn Abstract Adaptive software testing is the counterpart of adaptive control in software testing. It means that software testing strategy should be adjusted on- line by using the testing data collected during software

Kundu, Sukhamay

38

Computer modeling of the global warming effect  

SciTech Connect (OSTI)

The state of knowledge of global warming will be presented and two aspects examined: observational evidence and a review of the state of computer modeling of climate change due to anthropogenic increases in greenhouse gases. Observational evidence, indeed, shows global warming, but it is difficult to prove that the changes are unequivocally due to the greenhouse-gas effect. Although observational measurements of global warming are subject to ``correction,`` researchers are showing consistent patterns in their interpretation of the data. Since the 1960s, climate scientists have been making their computer models of the climate system more realistic. Models started as atmospheric models and, through the addition of oceans, surface hydrology, and sea-ice components, they then became climate-system models. Because of computer limitations and the limited understanding of the degree of interaction of the various components, present models require substantial simplification. Nevertheless, in their present state of development climate models can reproduce most of the observed large-scale features of the real system, such as wind, temperature, precipitation, ocean current, and sea-ice distribution. The use of supercomputers to advance the spatial resolution and realism of earth-system models will also be discussed.

Washington, W.M. [National Center for Atmospheric Research, Boulder, CO (United States)

1993-12-31T23:59:59.000Z

39

Software Testing via Model Checking Fevzi Belli, Bari Gldali  

E-Print Network [OSTI]

Software Testing via Model Checking Fevzi Belli, Bari G√ľldali University of Paderborn, Dept-5251 603445/47; Fax: +49-5251 60 3246 Abstract. Testing is a necessary, but costly process for user-centric quality control. Moreover, testing is not comprehensive enough to completely detect faults. Many formal

Belli, Fevzi

40

Page 1 September 2014EMC'2014 Software Model Checking  

E-Print Network [OSTI]

Page 1 September 2014EMC'2014 Dynamic Software Model Checking Patrice Godefroid Microsoft Research #12;Page 2 September 2014EMC'2014 Ed Clarke: A man, An idea... · LASER'2011 summer school (Elba island, Italy) #12;Page 3 September 2014EMC'2014 Ed Clarke: A man, An idea... · LASER'2011 summer school (Elba

Clarke, Edmund M.

Note: This page contains sample records for the topic "modeling software global" 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

0 + 0 = 1 : the appliance model of selling software bundled with hardware  

E-Print Network [OSTI]

The business model of selling software bundled with hardware is called the appliance model. As hardware becomes less and less expensive and open source software is being offered for free, the traditional business model of ...

Hein, Bettina

2007-01-01T23:59:59.000Z

42

Model-driven Automated Software FMEA Neal Snooke, PhD, Aberystwyth University  

E-Print Network [OSTI]

Model-driven Automated Software FMEA Neal Snooke, PhD, Aberystwyth University Chris Price PhD, Aberystwyth University Key Words: Failure modes and effects analysis; software FMEA; model-driven software development SUMMARY & CONCLUSIONS This paper describes how software FMEA can be automated both for low

Snooke, Neal

43

Landau gauge condensates from global color model  

E-Print Network [OSTI]

We compute the dimension-2 gluon pair condensate $g^2$ and the dimension-4 mixed quark-gluon condensate $$ in Landau gauge within the framework of global color model. The result for the dynamical gluon mass is within the range given by other independent determinations. The obtained mixed Landau gauge condensate $$ is clearly dependent on the definitions of the condensates. We show that the consistent result may be obtained when the same definitions are used.

Zhao Zhang; Wei-qin Zhao

2006-03-23T23:59:59.000Z

44

Empirical Evaluation of Defect Projection Models for Widely-deployed Production Software Systems  

E-Print Network [OSTI]

Ray, P.Santhanam Center for Software Engineering IBM T.J. Watson Research Center Hawthorne, NY 10532 Descriptors D.2.8 [Software Engineering]: Empirical Studies, Metrics, Reliability Engineering Keywords Defect modeling, empirical research, COTS, open source software, maintenance resource planning, software insurance

Herbsleb, James D.

45

Chapter 3: Software Architecture Modelling: Bridging Two Worlds Using Ergonomics and  

E-Print Network [OSTI]

Chapter 3: Software Architecture Modelling: Bridging Two Worlds Using Ergonomics and Software, · for verifying ergonomic and software properties, · for modifying and maintaining them in a productive way present a PAC-Amodeus software design solution of a WWW browser and its assessment in terms of ergonomic

Nigay, Laurence

46

Validated Model-Based Performance Prediction of Multi-Core Software Routers  

E-Print Network [OSTI]

Terms--measurement, simulation, intra-node model, re- source contention, model validation, software components. Leveraged by high flexibility and low costs of software developments in comparison with hardwareValidated Model-Based Performance Prediction of Multi-Core Software Routers Torsten Meyer1

Carle, Georg

47

Modelling Gaia CCD pixels with Silvaco 3D engineering software  

E-Print Network [OSTI]

Gaia will only achieve its unprecedented measurement accuracy requirements with detailed calibration and correction for radiation damage. We present our Silvaco 3D engineering software model of the Gaia CCD pixel and two of its applications for Gaia: (1) physically interpreting supplementary buried channel (SBC) capacity measurements (pocket-pumping and first pixel response) in terms of e2v manufacturing doping alignment tolerances; and (2) deriving electron densities within a charge packet as a function of the number of constituent electrons and 3D position within the charge packet as input to microscopic models being developed to simulate radiation damage.

Seabroke, G M; Hopkinson, G; Burt, D; Robbins, M; Holland, A

2010-01-01T23:59:59.000Z

48

TriBITS lifecycle model. Version 1.0, a lean/agile software lifecycle model for research-based computational science and engineering and applied mathematical software.  

SciTech Connect (OSTI)

Software lifecycles are becoming an increasingly important issue for computational science and engineering (CSE) software. The process by which a piece of CSE software begins life as a set of research requirements and then matures into a trusted high-quality capability is both commonplace and extremely challenging. Although an implicit lifecycle is obviously being used in any effort, the challenges of this process - respecting the competing needs of research vs. production - cannot be overstated. Here we describe a proposal for a well-defined software lifecycle process based on modern Lean/Agile software engineering principles. What we propose is appropriate for many CSE software projects that are initially heavily focused on research but also are expected to eventually produce usable high-quality capabilities. The model is related to TriBITS, a build, integration and testing system, which serves as a strong foundation for this lifecycle model, and aspects of this lifecycle model are ingrained in the TriBITS system. Here, we advocate three to four phases or maturity levels that address the appropriate handling of many issues associated with the transition from research to production software. The goals of this lifecycle model are to better communicate maturity levels with customers and to help to identify and promote Software Engineering (SE) practices that will help to improve productivity and produce better software. An important collection of software in this domain is Trilinos, which is used as the motivation and the initial target for this lifecycle model. However, many other related and similar CSE (and non-CSE) software projects can also make good use of this lifecycle model, especially those that use the TriBITS system. Indeed this lifecycle process, if followed, will enable large-scale sustainable integration of many complex CSE software efforts across several institutions.

Willenbring, James M.; Bartlett, Roscoe Ainsworth (Oak Ridge National Laboratory, Oak Ridge, TN); Heroux, Michael Allen

2012-01-01T23:59:59.000Z

49

Using Economics as Basis for Modelling and Evaluating Software Quality Stefan Wagner  

E-Print Network [OSTI]

Using Economics as Basis for Modelling and Evaluating Software Quality Stefan Wagner Institut f@in.tum.de Abstract The economics and cost of software quality have been discussed in software engineering for decades, economics should be the basis of any quality analysis. However, this implies several issues that have

50

On the Interaction between Business Models and Software Architecture in Electronic Commerce  

E-Print Network [OSTI]

1 On the Interaction between Business Models and Software Architecture in Electronic Commerce Jaap a business model for electronic commerce it is necessary to develop an architecture of the software system that will support this model. Such an architecture shows at an early stage to what extent the business model can

van Vliet, Hans

51

Accuracy of Contemporary Parametric Software Estimation Models: A Comparative Analysis  

E-Print Network [OSTI]

with delays and being costly and error- prone. Inaccurate estimation of project resources is considered as one the costs, schedule and the resources for IT projects. Software estimation is the process of predicting the effort, duration and cost required to develop a software system [2]. Estimators often rely on one or more

Tomkins, Andrew

52

Integrated decision support model for global sourcing  

E-Print Network [OSTI]

Over the last decade, the U.S. aircraft industry has experienced increasing levels of international integration as companies seek to access global talent and resources, cut production costs, spread financial risk, and ...

Mroczkowski, Victor A. (Victor Adam)

2008-01-01T23:59:59.000Z

53

Global manufacturing model and case studies  

E-Print Network [OSTI]

provision. This research provides information that should contribute to a better understanding of being globally competitive and helps a company to be able to make a wise move against its competitors....

Kijtawesataporn, Komsun

2003-01-01T23:59:59.000Z

54

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro  

E-Print Network [OSTI]

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro University to the verification of embedded soft- ware written in ANSI-C. We have extended the encodings from previous SMT. Keywords-Bounded Model Checking; Satisfiability Modulo Theories; Embedded ANSI-C Software; I. INTRODUCTION

55

Addressing Domain Evolution Challenges in Model-Driven Software Product-line Architectures  

E-Print Network [OSTI]

Software Engineering Department Siemens Corporate Research Princeton, NJ 08540, USA lenz.gunther@siemens study that shows how a layered architecture and model-to-model transformation tool support can re- duce Transformation 1. Introduction Software product-line architectures (PLAs) [20] are a promising technology

Schmidt, Douglas C.

56

Multi-Modal Modeling, Analysis and Validation of Open Source Software Requirements Processes  

E-Print Network [OSTI]

model of the OSS requirements process requires multiple, comparative project case studies, so our1 Multi-Modal Modeling, Analysis and Validation of Open Source Software Requirements Processes Walt@uci.edu Abstract Understanding the context, structure, activities, and content of software development processes

Scacchi, Walt

57

A simplified software architecture for self-updating Building Information Models (BIM)  

E-Print Network [OSTI]

Building Information Modeling (BIM) is an emerging software technology that is revolutionizing the architecture, engineering, and construction (A/E/C) industry. BIM technology employs "object-based 3D models-containing the ...

Fuller, Pierre (Pierre Henri)

2009-01-01T23:59:59.000Z

58

Numerica: a Modeling Language for Global Optimization Pascal Van Hentenryck  

E-Print Network [OSTI]

equilibrium problems, and design problems (e.g., nu­ clear reactor design). The field of global optimizationNumerica: a Modeling Language for Global Optimization Pascal Van Hentenryck Brown University Box or to optimize a nonlinear function subject to nonlinear constraints. This includes appli­ cations

Neumaier, Arnold

59

Large Scale Simulation of Tor: Modelling a Global Passive Adversary  

E-Print Network [OSTI]

. Implementing global passive adversary attacks on currently deployed low latency anonymous networks designs have been developed which attempt to apply mixes to low latency traffic. The most widelyLarge Scale Simulation of Tor: Modelling a Global Passive Adversary Gavin O' Gorman and Stephen

Blott, Stephen

60

MODELING THE GLOBAL PEAKS AND COOLING SY  

E-Print Network [OSTI]

of assessed building energy consumption and indoor air temperature peaks. At last, the coupling of the urban energy consumption. Building uses are an important part of the global energy use thus a good conception until the year 2100 highlight a regular increase building energy consumption and indoor At last

Boyer, Edmond

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


61

GLOBAL COMPREHENSIVE MODELS IN POLITICS AND POLICYMAKING  

E-Print Network [OSTI]

. In this editorial, I reflect on the role of comprehensive models, such as IAMs and earth system models (ESMs

Edwards, Paul N.

62

RICCI Sophie Global Change and Climate Modeling Team  

E-Print Network [OSTI]

RICCI Sophie Global Change and Climate Modeling Team CERFACS - Toulouse, FRANCE Technical Report TR covariance matrix#17;. This hypothesis stems from the T S water mass properties conservation over long term

63

SMT-Based Bounded Model Checking for Embedded ANSI-C Software  

E-Print Network [OSTI]

1 SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro, Bernd Fischer software written in ANSI-C in order to improve scalability and precision in a completely automatic way. We was provided for ANSI-C [5] constructs such as bit-level operations, fixed- point arithmetic, pointers (i

64

Safety analysis of software product lines using state-based modeling q , Josh Dehlinger a  

E-Print Network [OSTI]

Safety analysis of software product lines using state-based modeling q Jing Liu a , Josh Dehlinger of managing variations and their potential interactions across an entire product line currently hinders safety analysis in safety-critical, software product lines. The work described here contributes to a solution

Lutz, Robyn R.

65

A SOFTWARE ARCHITECTURE FOR DEVELOPMENTAL MODELING IN PLANTS: THE COMPUTABLE PLANT PROJECT  

E-Print Network [OSTI]

dynamic objects and relationships; a C++ code generator to translate SBML into highly efficient simulationA SOFTWARE ARCHITECTURE FOR DEVELOPMENTAL MODELING IN PLANTS: THE COMPUTABLE PLANT PROJECT Victoria present the software architecture of the Computable Plant Project, a multidisciplinary computationally

Mjolsness, Eric

66

Challenges in Using an Economic Cost Model for Software Engineering Simulation  

E-Print Network [OSTI]

1 Challenges in Using an Economic Cost Model for Software Engineering Simulation Emily Oh André van engineering education method of theory presented in lectures along with application of these theories dynamics underlying real-world software engineering processes. We are constructing a new approach

van der Hoek, André

67

Follow-the-Sun Software Development: Controlled Experiment.  

E-Print Network [OSTI]

??Context: Global software development (GSD) can be defined as distributing the software development work among various teams, which are geographically distributed. Global software development isÖ (more)

Pamulapati, Saroj

2011-01-01T23:59:59.000Z

68

NREL Software Models Performance of Wind Plants (Fact Sheet)  

SciTech Connect (OSTI)

This NREL Highlight is being developed for the 2015 February Alliance S&T Meeting, and describes NREL's Simulator for Offshore Wind Farm Applications (SOWFA) software in collaboration with Norway-based Statoil, to optimize layouts and controls of wind plants arrays.

Not Available

2015-01-01T23:59:59.000Z

69

Software Dependability Evaluation Based on Markov Usage Models  

E-Print Network [OSTI]

characterizes the (estimated) distribution of possible uses of a given program or software system in its) reliability. As input, pre--information on failure probabili­ ties and losses in case of failure related be improved by the construction of a distribution with a common lower bound on state transition probabilities

Gutjahr, Walter

70

MIT Integrated Global System Model (IGSM) Version 2: Model Description and Baseline Evaluation  

E-Print Network [OSTI]

The MIT Integrated Global System Model (IGSM) is designed for analyzing the global environmental changes that may result from anthropogenic causes, quantifying the uncertainties associated with the projected changes, and ...

Sokolov, Andrei P.

71

A PHYSICS-BASED SOFTWARE FRAMEWORK FOR SUN-EARTH CONNECTION MODELING  

E-Print Network [OSTI]

. The SWMF is a structured collection of software building blocks to develop components for Sun-Earth system modeling, to couple them, and to assemble them into applications. A component is created from the user

Stout, Quentin F.

72

Global Biofuels Modeling and Land Use  

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

Biofuels Modeling and Land Use DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Strategic Analysis & Cross-cutting Sustainability March 25 2015 Gbadebo Oladosu...

73

A BAYESIAN MODEL COMMITTEE APPROACH TO FORECASTING GLOBAL SOLAR RADIATION  

E-Print Network [OSTI]

1 A BAYESIAN MODEL COMMITTEE APPROACH TO FORECASTING GLOBAL SOLAR RADIATION in the realm of solar radiation forecasting. In this work, two forecasting models: Autoregressive Moving. The very first results show an improvement brought by this approach. 1. INTRODUCTION Solar radiation

Boyer, Edmond

74

Automated Environment Generation for Software Model Checking Oksana Tkachuk, Matthew B. Dwyer  

E-Print Network [OSTI]

Automated Environment Generation for Software Model Checking Oksana Tkachuk, Matthew B. Dwyer programs or about program components, an abstract model of the environment can be essential in enabling environment behavior with sound abstractions of environment implemen≠ tations to form a model

Pasareanu, Corina

75

Environmental Modelling & Software 15 (2000) 161167 www.elsevier.com/locate/envsoft  

E-Print Network [OSTI]

Environmental Modelling & Software 15 (2000) 161­167 www.elsevier.com/locate/envsoft A fuzzy model "contaminated", defined over the set of 70 sampling sites. The higher the concentration, the higher the degree contaminated sites. The proposed fuzzy model is easy to implement and the results are directly interpretable

Kuncheva, Ludmila I.

76

Leveraging The Open Provenance Model as a Multi-Tier Model for Global Climate Research  

SciTech Connect (OSTI)

Global climate researchers rely upon many forms of sensor data and analytical methods to help profile subtle changes in climate conditions. The U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) program provides researchers with curated Value Added Products (VAPs) resulting from continuous sensor data streams, data fusion, and modeling. The ARM operations staff and software development teams (data producers) rely upon a number of techniques to ensure strict quality control (QC) and quality assurance (QA) standards are maintained. Climate researchers (data consumers) are highly interested in obtaining as much provenance (data quality, data pedigree) as possible to establish data trustworthiness. Currently all the provenance is not easily attainable or identifiable without significant efforts to extract and piece together information from configuration files, log files, codes, and status information from ARM databases. The need for a formalized approach to managing provenance became paramount with the planned addition of 120 new instruments, new data products, and data collection scaling to half a terabyte daily. Last year our research identified the need for a multi-tier provenance model to enable the data consumer easy access to the provenance for their data. This year we are leveraging the Open Provenance Model as a foundational construct that serves the needs of both the VAP producers and consumers, we are organizing the provenance in different tiers of granularity to model VAP lineage, causality at the component level within a VAP, and the causality for each time step as samples are being assembled within the VAP. This paper shares our implementation strategy and how the ARM operations staff and the climate research community can greatly benefit from this approach to more effectively assess and quantify VAP provenance.

Stephan, Eric G.; Halter, Todd D.; Ermold, Brian D.

2010-12-08T23:59:59.000Z

77

Global sensitivity analysis of computer models with functional inputs  

E-Print Network [OSTI]

function. Lastly, the new methodology is applied to an industrial computer code that simulates the nuclear with scalar input variables. For example, in the nuclear engineering domain, global SA tools have been applied (Helton et al. [7]), environmental model of dose calculations (Iooss et al. [10]), reactor dosimetry

Boyer, Edmond

78

Mercury exosphere I. Global circulation model of its sodium component  

E-Print Network [OSTI]

Mercury exosphere I. Global circulation model of its sodium component Francois Leblanc a,*, R 2010 Accepted 27 April 2010 Available online 5 May 2010 Keywords: Mercury, Atmosphere Aeronomy a b s t r a c t Our understanding of Mercury's sodium exosphere has improved considerably in the last 5

Johnson, Robert E.

79

Commercial Building Energy Baseline Modeling Software: Performance Metrics and Method Testing with Open Source Models and Implications for Proprietary Software Testing  

SciTech Connect (OSTI)

The overarching goal of this work is to advance the capabilities of technology evaluators in evaluating the building-level baseline modeling capabilities of Energy Management and Information System (EMIS) software. Through their customer engagement platforms and products, EMIS software products have the potential to produce whole-building energy savings through multiple strategies: building system operation improvements, equipment efficiency upgrades and replacements, and inducement of behavioral change among the occupants and operations personnel. Some offerings may also automate the quantification of whole-building energy savings, relative to a baseline period, using empirical models that relate energy consumption to key influencing parameters, such as ambient weather conditions and building operation schedule. These automated baseline models can be used to streamline the whole-building measurement and verification (M&V) process, and therefore are of critical importance in the context of multi-measure whole-building focused utility efficiency programs. This report documents the findings of a study that was conducted to begin answering critical questions regarding quantification of savings at the whole-building level, and the use of automated and commercial software tools. To evaluate the modeling capabilities of EMIS software particular to the use case of whole-building savings estimation, four research questions were addressed: 1. What is a general methodology that can be used to evaluate baseline model performance, both in terms of a) overall robustness, and b) relative to other models? 2. How can that general methodology be applied to evaluate proprietary models that are embedded in commercial EMIS tools? How might one handle practical issues associated with data security, intellectual property, appropriate testing Ďblindsí, and large data sets? 3. How can buildings be pre-screened to identify those that are the most model-predictable, and therefore those whose savings can be calculated with least error? 4. What is the state of public domain models, that is, how well do they perform, and what are the associated implications for whole-building measurement and verification (M&V)? Additional project objectives that were addressed as part of this study include: (1) clarification of the use cases and conditions for baseline modeling performance metrics, benchmarks and evaluation criteria, (2) providing guidance for determining customer suitability for baseline modeling, (3) describing the portfolio level effects of baseline model estimation errors, (4) informing PG&Eís development of EMIS technology product specifications, and (5) providing the analytical foundation for future studies about baseline modeling and saving effects of EMIS technologies. A final objective of this project was to demonstrate the application of the methodology, performance metrics, and test protocols with participating EMIS product vendors.

Price, Phillip N.; Granderson, Jessica; Sohn, Michael; Addy, Nathan; Jump, David

2013-09-01T23:59:59.000Z

80

Software Model Checking: The VeriSoft Approach Patrice Godefroid  

E-Print Network [OSTI]

of the concurrent system specified in a (essentially finite­state) modeling language. Many properties of a model purposes. 1 Examples of tools that follow the above paradigm are CAESAR [FGM + 92], COSPAN [HK90], CWB [CPS

Rajamani, Sriram K.

Note: This page contains sample records for the topic "modeling software global" 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

Context-Bounded Model Checking of LTL Properties for ANSI-C Software  

E-Print Network [OSTI]

Context-Bounded Model Checking of LTL Properties for ANSI-C Software Jeremy Morse1 , Lucas Cordeiro in low-level programming languages like ANSI- C. In this paper, we describe and experiment such as ANSI-C [9, 23, 17]. In context-bounded model checking, the state spaces of such applications

82

Development of a new model to predict indoor daylighting : integration in CODYRUN software and validation  

E-Print Network [OSTI]

1 Development of a new model to predict indoor daylighting : integration in CODYRUN software in the scientific literature for determining indoor daylighting values. They are classified in three categories. The originality of our paper relies on the coupling of several simplified models of indoor daylighting

Paris-Sud XI, Université de

83

SMT-Based Bounded Model Checking for Embedded ANSI-C Software  

E-Print Network [OSTI]

Propositional bounded model checking has been applied successfully to verify embedded software but is limited by the increasing propositional formula size and the loss of structure during the translation. These limitations can be reduced by encoding word-level information in theories richer than propositional logic and using SMT solvers for the generated verification conditions. Here, we investigate the application of different SMT solvers to the verification of embedded software written in ANSI-C. We have extended the encodings from previous SMT-based bounded model checkers to provide more accurate support for finite variables, bit-vector operations, arrays, structures, unions and pointers. We have integrated the CVC3, Boolector, and Z3 solvers with the CBMC front-end and evaluated them using both standard software model checking benchmarks and typical embedded applications from telecommunications, control systems and medical devices. The experiments show that our approach can analyze larger problems and sub...

Cordeiro, Lucas; Marques-Silva, Joao

2009-01-01T23:59:59.000Z

84

Global Biogeochemistry Models and Global Carbon Cycle Research at Lawrence Livermore National Laboratory  

SciTech Connect (OSTI)

The climate modeling community has long envisioned an evolution from physical climate models to ''earth system'' models that include the effects of biology and chemistry, particularly those processes related to the global carbon cycle. The widely reproduced Box 3, Figure 1 from the 2001 IPCC Scientific Assessment schematically describes that evolution. The community generally accepts the premise that understanding and predicting global and regional climate change requires the inclusion of carbon cycle processes in models to fully simulate the feedbacks between the climate system and the carbon cycle. Moreover, models will ultimately be employed to predict atmospheric concentrations of CO{sub 2} and other greenhouse gases as a function of anthropogenic and natural processes, such as industrial emissions, terrestrial carbon fixation, sequestration, land use patterns, etc. Nevertheless, the development of coupled climate-carbon models with demonstrable quantitative skill will require a significant amount of effort and time to understand and validate their behavior at both the process level and as integrated systems. It is important to consider objectively whether the currently proposed strategies to develop and validate earth system models are optimal, or even sufficient, and whether alternative strategies should be pursued. Carbon-climate models are going to be complex, with the carbon cycle strongly interacting with many other components. Off-line process validation will be insufficient. As was found in coupled atmosphere-ocean GCMs, feedbacks between model components can amplify small errors and uncertainties in one process to produce large biases in the simulated climate. The persistent tropical western Pacific Ocean ''double ITCZ'' and upper troposphere ''cold pole'' problems are examples. Finding and fixing similar types of problems in coupled carbon-climate models especially will be difficult, given the lack of observations required for diagnosis and validation of biogeochemical processes.

Covey, C; Caldeira, K; Guilderson, T; Cameron-Smith, P; Govindasamy, B; Swanston, C; Wickett, M; Mirin, A; Bader, D

2005-05-27T23:59:59.000Z

85

MODELING WIND TURBINES IN THE GRIDLAB-D SOFTWARE ENVIRONMENT  

SciTech Connect (OSTI)

In recent years, the rapid expansion of wind power has resulted in a need to more accurately model the effects of wind penetration on the electricity infrastructure. GridLAB-D is a new simulation environment developed for the U.S. Department of Energy (DOE) by the Pacifi c Northwest National Laboratory (PNNL), in cooperation with academic and industrial partners. GridLAB-D was originally written and designed to help integrate end-use smart grid technologies, and it is currently being expanded to include a number of other technologies, including distributed energy resources (DER). The specifi c goal of this project is to create a preliminary wind turbine generator (WTG) model for integration into GridLAB-D. As wind power penetration increases, models are needed to accurately study the effects of increased penetration; this project is a beginning step at examining these effects within the GridLAB-D environment. Aerodynamic, mechanical and electrical power models were designed to simulate the process by which mechanical power is extracted by a wind turbine and converted into electrical energy. The process was modeled using historic atmospheric data, collected over a period of 30 years as the primary energy input. This input was then combined with preliminary models for synchronous and induction generators. Additionally, basic control methods were implemented, using either constant power factor or constant power modes. The model was then compiled into the GridLAB-D simulation environment, and the power outputs were compared against manufacturersí data and then a variation of the IEEE 4 node test feeder was used to examine the modelís behavior. Results showed the designs were suffi cient for a prototype model and provided output power similar to the available manufacturersí data. The prototype model is designed as a template for the creation of new modules, with turbine-specifi c parameters to be added by the user.

Fuller, J.C.; Schneider, K.P.

2009-01-01T23:59:59.000Z

86

A Model of Success: The Carnegie Institute for Global Ecology  

E-Print Network [OSTI]

Carnegie Institute for Global Ecology Kirstin Weeks, DavidInstitute for Global Ecology, the answer is an unquali? edremarkable about the Global Ecology building is not only how

Weeks, Kirstin; Lehrer, David; Bean, Jonathan

2007-01-01T23:59:59.000Z

87

Interactive software for model predictive control with simultaneous identification  

E-Print Network [OSTI]

This thesis is a unified practical framework in the theory of Model Predictive Control with Simultaneous Identification. The ability to change and visualize parameters on-line makes this toolbox attractive for control engineers, and for anyone...

Echeverria Del Rio, Pablo

2000-01-01T23:59:59.000Z

88

Global search tool for the Advanced Photon Source Integrated Relational Model of Installed Systems (IRMIS) database.  

SciTech Connect (OSTI)

The Integrated Relational Model of Installed Systems (IRMIS) is a relational database tool that has been implemented at the Advanced Photon Source to maintain an updated account of approximately 600 control system software applications, 400,000 process variables, and 30,000 control system hardware components. To effectively display this large amount of control system information to operators and engineers, IRMIS was initially built with nine Web-based viewers: Applications Organizing Index, IOC, PLC, Component Type, Installed Components, Network, Controls Spares, Process Variables, and Cables. However, since each viewer is designed to provide details from only one major category of the control system, the necessity for a one-stop global search tool for the entire database became apparent. The user requirements for extremely fast database search time and ease of navigation through search results led to the choice of Asynchronous JavaScript and XML (AJAX) technology in the implementation of the IRMIS global search tool. Unique features of the global search tool include a two-tier level of displayed search results, and a database data integrity validation and reporting mechanism.

Quock, D. E. R.; Cianciarulo, M. B.; APS Engineering Support Division; Purdue Univ.

2007-01-01T23:59:59.000Z

89

Global Solvability of the Anharmonic Oscillator Model From Nonlinear Optics  

E-Print Network [OSTI]

Global Solvability of the Anharmonic Oscillator Model From Nonlinear Optics J.L. Joly CEREMAB URA approxiamation may blow up in finite time. Key words. Nonlinear optics, nonlinear Maxwell equations, nonlinear equations @ t B + curl E = 0 (1:1) @ t E \\Gamma curl B = \\Gamma@ t P (1:2) @ 2 t P + @ t P=T 1 + aP = bE (1

Joly, Jean-Luc

90

A Reliability Model for Nonhomogeneous Redundant Software Versions with Correlated Failures  

E-Print Network [OSTI]

A Reliability Model for Nonhomogeneous Redundant Software Versions with Correlated Failures Walter Abstract: The article develops a technique for computing the reliability (1) of a recovery block with fault{version programming, soft- ware reliability. 1 Introduction An important issue in the evaluation and optimization

Gutjahr, Walter

91

An integrated life cycle quality model for general public market software products  

E-Print Network [OSTI]

. The requirements are built upon existing industry standards, including ISO 9001. The TL 9000 Quality System quality view of TL9000 Handbook and detailed view from ISO/IEC 1926 in the process of defining, measuring by TL9000-ISO complement model as well as by application process walk-through. Proceedings of Software

Suryn, Witold

92

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro  

E-Print Network [OSTI]

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro University to the verification of embedded soft- ware written in ANSI-C. We have extended the encod- ings from previous SMT and linear arithmetic were considered, but no encoding was provided for ANSI-C [6] constructs such as bit

93

Modular Operational Test Plans for Inferences on Software Reliability Based on a Markov Model  

E-Print Network [OSTI]

Modular Operational Test Plans for Inferences on Software Reliability Based on a Markov Model reliabilities. An operational test procedure is considered in which only the individual modules are tested and the system is considered acceptable if, and only if, no failures are observed. The minimum number of tests

Mazumdar, Mainak

94

The Amulet Environment: New Models for Effective User Interface Software Development  

E-Print Network [OSTI]

display and editing of objects, and external analysis and control of interfaces. Amulet integratesThe Amulet Environment: New Models for Effective User Interface Software Development Brad A. Myers://www.cs.cmu.edu/~amulet Abstract The Amulet user interface development environment makes it easier for programmers to create highly

Myers, Brad A.

95

Model Checking Large Software Specifications William Chan Richard J. Anderson Paul Beame Steve Burns  

E-Print Network [OSTI]

Model Checking Large Software Specifications William Chan Richard J. Anderson Paul Beame Steve methods for achieving acceptable performance, and giving a sum­ mary of the properties analyzed. Based.J. Anderson, P. Beame, F. Modugno, D. Notkin, and J.D. Reese are with the Department of Computer Science

Beame, Paul

96

Climate Models from the Joint Global Change Research Institute  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Staff at the Joint Institute develop and use models to simulate the economic and physical impacts of global change policy options. The GCAM, for example, gives analysts insight into how regional and national economies might respond to climate change mitigation policies including carbon taxes, carbon trading, and accelerated deployment of energy technology. Three available models are Phoenix, GCAM, and EPIC. Phoenix is a global, dynamic recursive, computable general equilibrium model that is solved in five-year time steps from 2005 through 2100 and divides the world into twenty-four regions. Each region includes twenty-six industrial sectors. Particular attention is paid to energy production in Phoenix. There are nine electricity-generating technologies (coal, natural gas, oil, biomass, nuclear, hydro, wind, solar, and geothermal) and four additional energy commodities: crude oil, refined oil products, coal, and natural gas. Phoenix is designed to answer economic questions related to international climate and energy policy and international trade. Phoenix replaces the Second Generation Model (SGM) that was formerly used for general equilibrium analysis at JGCRI. GCAM is the Global Change Assessment Model, a partial equilibrium model of the world with 14 regions. GCAM operates in 5 year time steps from 1990 to 2095 and is designed to examine long-term changes in the coupled energy, agriculture/land-use, and climate system. GCAM includes a 151-region agriculture land-use module and a reduced form carbon cycle and climate module in addition to its incorporation of demographics, resources, energy production and consumption. The model has been used extensively in a number of assessment and modeling activities such as the Energy Modeling Forum (EMF), the U.S. Climate Change Technology Program, and the U.S. Climate Change Science Program and IPCC assessment reports. GCAM is now freely available as a community model. The Environmental Policy Integrated Climate (EPIC) Model is a process-based agricultural systems model composed of simulation components for weather, hydrology, nutrient cycling, pesticide fate, tillage, crop growth, soil erosion, crop and soil management and economics. Staff at PNNL have been involved in the development of this model by integrating new sub-models for soil carbon dynamics and nitrogen cycling.

97

Selection between foreground models for global 21-cm experiments  

E-Print Network [OSTI]

The precise form of the foregrounds for sky-averaged measurements of the 21-cm line during and before the epoch of reionization is unknown. We suggest that the level of complexity in the foreground models used to fit global 21-cm data should be driven by the data, under a Bayesian model selection methodology. A first test of this approach is carried out by applying nested sampling to simplified models of global 21-cm data to compute the Bayesian evidence for the models. If the foregrounds are assumed to be polynomials of order n in log-log space, we can infer the necessity to use n=4 rather than n=3 with <2h of integration with limited frequency coverage, for reasonable values of the n=4 coefficient. Using a higher-order polynomial does not necessarily prevent a significant detection of the 21-cm signal. Even for n=8, we can obtain very strong evidence distinguishing a reasonable model for the signal from a null model with 128h of integration. More subtle features of the signal may, however, be lost if the...

Harker, Geraint

2015-01-01T23:59:59.000Z

98

International Environmental Modelling and Software Society (iEMSs) 2010 International Congress on Environmental Modelling and Software  

E-Print Network [OSTI]

of the rain- fall/pollutant relationship at the catchment scale for intelligent environmental decision support for such relationship grows with the size of drainage networks in urban catchments or with the water pollu- tion models fail to describe correctly the dynamic changes of the system for different rainfall events (e

Boyer, Edmond

99

International Environmental Modelling and Software Society (iEMSs) 2010 International Congress on Environmental Modelling and Software  

E-Print Network [OSTI]

energy utilization is one of the most important aspects of green buildings. The wind and solar energy://www.iemss.org/iemss2010/index.php?n=Main.Proceedings Modelling and control of a hybrid renewable energy system to supply demand of a green-building H. Dagdouguia,b , R. Minciardia , A. Ouammia,c , M. Robbaa , R. Sacilea

Boyer, Edmond

100

AutoMoDe - Model-Based Development of Automotive Software  

E-Print Network [OSTI]

This paper describes first results from the AutoMoDe (Automotive Model-Based Development) project. The overall goal of the project is to develop an integrated methodology for model-based development of automotive control software, based on problem-specific design notations with an explicit formal foundation. Based on the existing AutoFOCUS framework, a tool prototype is being developed in order to illustrate and validate the key elements of our approach.

Ziegenbein, Dirk; Freund, Ulrich; Bauer, Andreas; Romberg, Jan; Schatz, Bernhard

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling software global" 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

Global horizontal irradiance clear sky models : implementation and analysis.  

SciTech Connect (OSTI)

Clear sky models estimate the terrestrial solar radiation under a cloudless sky as a function of the solar elevation angle, site altitude, aerosol concentration, water vapor, and various atmospheric conditions. This report provides an overview of a number of global horizontal irradiance (GHI) clear sky models from very simple to complex. Validation of clear-sky models requires comparison of model results to measured irradiance during clear-sky periods. To facilitate validation, we present a new algorithm for automatically identifying clear-sky periods in a time series of GHI measurements. We evaluate the performance of selected clear-sky models using measured data from 30 different sites, totaling about 300 site-years of data. We analyze the variation of these errors across time and location. In terms of error averaged over all locations and times, we found that complex models that correctly account for all the atmospheric parameters are slightly more accurate than other models, but, primarily at low elevations, comparable accuracy can be obtained from some simpler models. However, simpler models often exhibit errors that vary with time of day and season, whereas the errors for complex models vary less over time.

Stein, Joshua S.; Hansen, Clifford W.; Reno, Matthew J.

2012-03-01T23:59:59.000Z

102

Comparison of Software Models for Energy Savings from Cool Roofs  

SciTech Connect (OSTI)

A web-based Roof Savings Calculator (RSC) has been deployed for the United States Department of Energy as an industry-consensus tool to help building owners, manufacturers, distributors, contractors and researchers easily run complex roof and attic simulations. This tool employs modern web technologies, usability design, and national average defaults as an interface to annual simulations of hour-by-hour, whole-building performance using the world-class simulation tools DOE-2.1E and AtticSim in order to provide estimated annual energy and cost savings. In addition to cool reflective roofs, RSC simulates multiple roof and attic configurations including different roof slopes, above sheathing ventilation, radiant barriers, low-emittance roof surfaces, duct location, duct leakage rates, multiple substrate types, and insulation levels. A base case and energy-efficient alternative can be compared side-by-side to estimate monthly energy. RSC was benchmarked against field data from demonstration homes in Ft. Irwin, California; while cooling savings were similar, heating penalty varied significantly across different simulation engines. RSC results reduce cool roofing cost-effectiveness thus mitigating expected economic incentives for this countermeasure to the urban heat island effect. This paper consolidates comparison of RSC s projected energy savings to other simulation engines including DOE-2.1E, AtticSim, Micropas, and EnergyPlus, and presents preliminary analyses. RSC s algorithms for capturing radiant heat transfer and duct interaction in the attic assembly are considered major contributing factors to increased cooling savings and heating penalties. Comparison to previous simulation-based studies, analysis on the force multiplier of RSC cooling savings and heating penalties, the role of radiative heat exchange in an attic assembly, and changes made for increased accuracy of the duct model are included.

New, Joshua Ryan [ORNL; Miller, William A [ORNL; Huang, Yu (Joe) [White Box Technologies; Levinson, Ronnen [Lawrence Berkeley National Laboratory (LBNL)

2014-01-01T23:59:59.000Z

103

Enhance accuracy in Software cost and schedule estimation by using "Uncertainty Analysis and Assessment" in the system modeling process  

E-Print Network [OSTI]

Accurate software cost and schedule estimation are essential for software project success. Often it referred to as the "black art" because of its complexity and uncertainty, software estimation is not as difficult or puzzling as people think. In fact, generating accurate estimates is straightforward-once you understand the intensity of uncertainty and framework for the modeling process. The mystery to successful software estimation-distilling academic information and real-world experience into a practical guide for working software professionals. Instead of arcane treatises and rigid modeling techniques, this will guide highlights a proven set of procedures, understandable formulas, and heuristics that individuals and development teams can apply to their projects to help achieve estimation proficiency with choose appropriate development approaches In the early stage of software life cycle project manager are inefficient to estimate the effort, schedule, cost estimation and its development approach .This in tu...

Vasantrao, Kardile Vilas

2011-01-01T23:59:59.000Z

104

Financial constraints in capacity planning: a national utility regulatory model (NUREG). Volume III of III: software description. Final report  

SciTech Connect (OSTI)

This volume is the software description for the National Utility Regulatory Model (NUREG). This is the third of three volumes provided by ICF under contract number DEAC-01-79EI-10579. These three volumes are: a manual describing the NUREG methodology; a users guide; and a description of the software. This manual describes the software which has been developed for NUREG. This includes a listing of the source modules. All computer code has been written in FORTRAN.

None

1981-10-29T23:59:59.000Z

105

Global delivery of IT services : looking beyond the global delivery model  

E-Print Network [OSTI]

The objective of this thesis is to analyze the factors that create competitive advantage through global delivery of IT services. Research on this thesis consists of a review of IT services markets and globally distributed ...

Cherian, Binoy

2007-01-01T23:59:59.000Z

106

MOGO: Model-Oriented Global Optimization of Petascale Applications  

SciTech Connect (OSTI)

The MOGO project was initiated under in 2008 under the DOE Program Announcement for Software Development Tools for Improved Ease-of-Use on Petascale systems (LAB 08-19). The MOGO team consisted of Oak Ridge National Lab, Argonne National Lab, and the University of Oregon. The overall goal of MOGO was to attack petascale performance analysis by developing a general framework where empirical performance data could be efficiently and accurately compared with performance expectations at various levels of abstraction. This information could then be used to automatically identify and remediate performance problems. MOGO was be based on performance models derived from application knowledge, performance experiments, and symbolic analysis. MOGO was able to make reasonable impact on existing DOE applications and systems. New tools and techniques were developed, which, in turn, were used on important DOE applications on DOE LCF systems to show significant performance improvements.

Malony, Allen D.; Shende, Sameer S.

2012-09-14T23:59:59.000Z

107

Global  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet Assistance GetGiant ProteaseGlass andT.2 -Global

108

EWEC 2006 Wind Energy Conference and Exhibition Turbine Wake Model for Wind Resource Software  

E-Print Network [OSTI]

EWEC 2006 Wind Energy Conference and Exhibition 1 Turbine Wake Model for Wind Resource Software Ole) AT: #12;EWEC 2006 Wind Energy Conference and Exhibition 2 21 2 0TT C U= (1) 0 0(1 )wU a U= - (2); 1.5 0.75 AR Aw0 U0 Uw0 T #12;EWEC 2006 Wind Energy Conference and Exhibition 3 ( )2 0 1 ( , ) 1

109

A Vast Machine Computer Models, Climate Data, and the Politics of Global Warming  

E-Print Network [OSTI]

A Vast Machine Computer Models, Climate Data, and the Politics of Global Warming Paul N. Edwards models, climate data, and the politics of global warming / Paul N. Edwards. p. cm. Includes. Climatology--History. 3. Meteorology--History. 4. Climatology--Technological innovation. 5. Global temperature

110

Title: Early and global estimation of microvascular target organ damage in hypertension by use of innovative software  

E-Print Network [OSTI]

Title: Early and global estimation of microvascular target organ damage in hypertension by use-mail: artriant@hotmail.com Disclosure: none Conflicts of interest: none Key Words: hypertension, target organ cardiovascular risk assessment and early #12;identification of hypertensive target organ damage is continuously

Markatos, Evangelos P.

111

Appendix 3-3-The complete model formulation for detailed multiple release software product simulation model  

E-Print Network [OSTI]

simulation model In this appendix the model formulations for the detailed simulation model (discussed

Rahmandad, Hazhir

112

Hydrologic Nuclide Transport Models in Cyder, A Geologic Disposal Software Library - 13328  

SciTech Connect (OSTI)

Component level and system level abstraction of detailed computational geologic repository models have resulted in four rapid computational models of hydrologic radionuclide transport at varying levels of detail. Those models are described, as is their implementation in Cyder, a software library of interchangeable radionuclide transport models appropriate for representing natural and engineered barrier components of generic geology repository concepts. A proof of principle demonstration was also conducted in which these models were used to represent the natural and engineered barrier components of a repository concept in a reducing, homogenous, generic geology. This base case demonstrates integration of the Cyder open source library with the Cyclus computational fuel cycle systems analysis platform to facilitate calculation of repository performance metrics with respect to fuel cycle choices. (authors)

Huff, Kathryn D. [Argonne National Laboratory, 9700 S. Cass Ave, Argonne, IL (United States)] [Argonne National Laboratory, 9700 S. Cass Ave, Argonne, IL (United States)

2013-07-01T23:59:59.000Z

113

Application of the Software as a Service Model to the Control of Complex Building Systems  

SciTech Connect (OSTI)

In an effort to create broad access to its optimization software, Lawrence Berkeley National Laboratory (LBNL), in collaboration with the University of California at Davis (UC Davis) and OSISoft, has recently developed a Software as a Service (SaaS) Model for reducing energy costs, cutting peak power demand, and reducing carbon emissions for multipurpose buildings. UC Davis currently collects and stores energy usage data from buildings on its campus. Researchers at LBNL sought to demonstrate that a SaaS application architecture could be built on top of this data system to optimize the scheduling of electricity and heat delivery in the building. The SaaS interface, known as WebOpt, consists of two major parts: a) the investment& planning and b) the operations module, which builds on the investment& planning module. The operational scheduling and load shifting optimization models within the operations module use data from load prediction and electrical grid emissions models to create an optimal operating schedule for the next week, reducing peak electricity consumption while maintaining quality of energy services. LBNL's application also provides facility managers with suggested energy infrastructure investments for achieving their energy cost and emission goals based on historical data collected with OSISoft's system. This paper describes these models as well as the SaaS architecture employed by LBNL researchers to provide asset scheduling services to UC Davis. The peak demand, emissions, and cost implications of the asset operation schedule and investments suggested by this optimization model are analysed.

Stadler, Michael; Donadee, Jonathan; Marnay, Chris; Mendes, Goncalo; Appen, Jan von; Megel, Oliver; Bhattacharya, Prajesh; DeForest, Nicholas; Lai, Judy

2011-03-17T23:59:59.000Z

114

Global temperatures using satellite and numerical model assimilated data  

SciTech Connect (OSTI)

The Microwave Sounding Unit (MSU) aboard the National Oceanic and Atmospheric Administration (NOAA) series of polar orbiting satellites (TIROS-N to NOAA-11) have provided stable, precise measurements of vertically integrated, atmospheric temperature since December 1978. In this study, comparisons are made between the MSU channel measurements and those derived from the Global Data Assimilation System (GDAS) at the National Meteorological Center (NMC) over the period 1979 to 1990. Land areas rich in Radiosonde Observations (RAOBS) showed similar magnitudes of spatial variability between the NMC GDAS and the MSU temperatures. Excessive spatial variability can be noted in the GDAS over land areas where conventional data is poor. Over the ocean, however, the assimilation of satellite data into the model improves the spatial variability detected by the GDAS.

Basist, A.; Ropelewski, C.; Grody, N. (NOAA/NWS/NMC, Washington, DC (United States) NOAA/NESDIS, Washington, DC (United States))

1994-01-01T23:59:59.000Z

115

Intercomparison of the Cloud Water Phase among Global Climate Models  

SciTech Connect (OSTI)

Mixed-phase clouds (clouds that consist of both cloud droplets and ice crystals) are frequently present in the Earthís atmosphere and influence the Earthís energy budget through their radiative properties, which are highly dependent on the cloud water phase. In this study, the phase partitioning of cloud water is compared among six global climate models (GCMs) and with Cloud and Aerosol Lidar with Orthogonal Polarization retrievals. It is found that the GCMs predict vastly different distributions of cloud phase for a given temperature, and none of them are capable of reproducing the spatial distribution or magnitude of the observed phase partitioning. While some GCMs produced liquid water paths comparable to satellite observations, they all failed to preserve sufficient liquid water at mixed-phase cloud temperatures. Our results suggest that validating GCMs using only the vertically integrated water contents could lead to amplified differences in cloud radiative feedback. The sensitivity of the simulated cloud phase in GCMs to the choice of heterogeneous ice nucleation parameterization is also investigated. The response to a change in ice nucleation is quite different for each GCM, and the implementation of the same ice nucleation parameterization in all models does not reduce the spread in simulated phase among GCMs. The results suggest that processes subsequent to ice nucleation are at least as important in determining phase and should be the focus of future studies aimed at understanding and reducing differences among the models.

Komurcu, Muge; Storelvmo, Trude; Tan, Ivy; Lohmann, U.; Yun, Yuxing; Penner, Joyce E.; Wang, Yong; Liu, Xiaohong; Takemura, T.

2014-03-27T23:59:59.000Z

116

A simple model for evolution of proteins towards the global minimum of free energy  

E-Print Network [OSTI]

A simple model for evolution of proteins towards the global minimum of free energy Tamar Kaffe-Abramovich and Ron Unger Background: Proteins seem to have their native structure in a global minimum of free energy is in the global minimum of free energy. The aim of this study is to investigate such evolutionary processes

Unger, Ron

117

The China-in-Global Energy Model Tianyu Qi, Niven Winchester, Da Zhang,  

E-Print Network [OSTI]

of production, consumption and trade among multiple global regions and sectors ­ including five energy to communicate research results and improve public understanding of global environment and energy challenges-intensive sectors ­ to analyze global energy demand, CO2 emissions, and economic activity. The C-GEM model supplies

118

An Aspect Oriented Model for Software Energy Efficiency in Decentralised Servers  

E-Print Network [OSTI]

interests with the increasing impact of IT in energy consumption. Green-ness in software however, can Green software is a matter of concern with increasing energy bills and environmental impact, the green software research focus is mainly on energy efficiency [2]­[4]. Most green software techniques

Liu, Xiaodong

119

Numerical Weather Prediction (NWP) and hybrid ARMA/ANN model to predict global radiation  

E-Print Network [OSTI]

Numerical Weather Prediction (NWP) and hybrid ARMA/ANN model to predict global radiation Cyril a hybrid ARMA/ANN model and data issued from a numerical weather prediction model (ALADIN). We particularly@gmail.com #12;Abstract. We propose in this paper an original technique to predict global radiation using

Paris-Sud XI, Université de

120

Unifying Domain Ontology with Agent-Oriented Modeling of Services Key Lab. of High Confidence Software Tech.  

E-Print Network [OSTI]

of modeling. The architecture combines agent-oriented models of software systems in which service providers of service-oriented architectures is the dynamic service composition through discovering and invokingUnifying Domain Ontology with Agent-Oriented Modeling of Services Zhi Jin Key Lab. of High

Zhu, Hong

Note: This page contains sample records for the topic "modeling software global" 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

Why are climate models reproducing the observed global surface warming so well?  

E-Print Network [OSTI]

Why are climate models reproducing the observed global surface warming so well? Reto Knutti1 global surface warming so well?, Geophys. Res. Lett., 35, L18704, doi:10.1029/ 2008GL034932. 1 models reproduce the observed surface warming better than one would expect given the uncertainties

Fischlin, Andreas

122

An Improved Global Model for Air-Sea Exchange of Mercury: High  

E-Print Network [OSTI]

An Improved Global Model for Air-Sea Exchange of Mercury: High Concentrations over the North by inputs from Hg enriched subsurface waters through entrainment and Ekman pumping. Globally, subsurface). Previous efforts to model Hg air-sea exchange (2) and atmospheric transport (4-6) have been unable

Holmes, Christopher D.

123

Multiscale models of atmospheric mercury: bromine chemistry, air-sea exchange, and global transport  

E-Print Network [OSTI]

entrainment of RGM-rich air from the free troposphere (25­40%). Oxidation of Hg0 by Cl is minor (3Multiscale models of atmospheric mercury: bromine chemistry, air-sea exchange, and global transport Multiscale models of atmospheric mercury: bromine chemistry, air-sea exchange, and global transport Abstract

Holmes, Christopher D.

124

Arquitecturas Software Juan Jos Moreno Navarro  

E-Print Network [OSTI]

Arquitecturas Software Juan Jos√© Moreno Navarro (Curso de Software basado en Componentes, junto a Lars-Ake Fredlund) Arquitecturas Software ¬∑ Motivaci√≥n: ¬≠ Complejidad creciente de aplicaciones sus propiedades globales. Arquitecturas Software ¬∑ Caracter√≠sticas: ¬≠ Parte del dise√Īo de software

Fredlund, Lars-√?ke

125

A constraint solver for software engineering : finding models and cores of large relational specifications  

E-Print Network [OSTI]

Relational logic is an attractive candidate for a software description language, because both the design and implementation of software often involve reasoning about relational structures: organizational hierarchies in the ...

Torlak, Emina, 1979-

2009-01-01T23:59:59.000Z

126

Dispersion model for elevated dense-gas-jet chemical releases (DOMS/DEGADIS) (for microcomputers). Software  

SciTech Connect (OSTI)

The computer program, Ooms/DEGADIS, found on these diskettes and described in the EPA report entitled, A Dispersion Model for Elevated Dense Gas Jet Chemical Releases - Volumes 1 and 2 (EPA 450/4-88-006a and b), is a VAX-operational program designed to simulate the dispersion of heavier-than-air gases which are emitted into the atmosphere with significant velocity through elevated ports. The program incorporates the sequential execution of two models. The first one (Ooms) calculates the trajectory and dispersion of the gas plume as it falls to the ground. The second (DEGADIS) calculates the downwind dispersion of the plume after it touches the ground. Users are referred to the Preface in the User's Guide for specific instructions for program implementation...Software Description: The program is written in FORTRAN with specific intent for compilation and execution on a Digital Equipment Corporation VAX computer. Implementation of the model on any other computer system may be attempted at the risk of the user. To facilitate dissemination of the model, it is being provided on two PC-compatible diskettes. The model should be uploaded via modem from a PC terminal to host VAX computer, and several files must then be renamed prior to compilation and execution.

Guinnup, D.

1988-04-01T23:59:59.000Z

127

Global Ocean Circulation Modeling with an Isopycnic Coordinate Model. Final Report for May 1, 1998 - April 30, 2002  

SciTech Connect (OSTI)

The overall aim of this project was to continue development of a global version of the Miami Isopycnic Coordinate Ocean Model (MICOM) with the intent of turning it into a full-fledged oceanic component of an earth system model.

Bleck, R.

2004-05-19T23:59:59.000Z

128

Global patterns of nitrogen limitation: confronting two global biogeochemical models with observations  

E-Print Network [OSTI]

representations of Earth System Models have included the carbon (C) cycle (Friedlingstein et al., 2006

Templer, Pamela

129

Using HOMER Software, NREL's Micropower Optimization Model, to Explore the Role of Gen-sets in Small Solar Power Systems; Case Study: Sri Lanka  

SciTech Connect (OSTI)

This paper discusses using HOMER Software, NREL's Micropower Optimization Model, to explore the role of gen-sets in small solar power systems in Sri Lanka.

Givler, T.; Lilienthal, P.

2005-05-01T23:59:59.000Z

130

OASIS4: A Coupling Software for Next Generation Earth System Modelling Ren Redler (1), Sophie Valcke (2) and Hubert Ritzdorf (3)  

E-Print Network [OSTI]

OASIS4: A Coupling Software for Next Generation Earth System Modelling René Redler (1), Sophie system modelling, Geosci. Model. Dev., 3, 87 ­ 104 Link ­ https://oasistrac.cerfacs.fr Financial support ­ R. Redler, S. Valcke and H. Ritzdorf, 2010: OASIS4 ­ a coupling software for next generation earth

131

To appear in: Boden A, Mller C, Nett B. Conducting Business Ethnography in Global Software Development Projects of Small German Enterprises. Information and Software Technology. 2010; accepted for publication.  

E-Print Network [OSTI]

Development Projects of Small German Enterprises. Information and Software Technology. 2010; accepted with while conducting research in the context of offshoring in small to medium-sized enterprises (SMEs of offshored software development work in SMEs [3,4,5,6]. The first part of the project was an explorative

132

SO2 emissions and lifetimes: Estimates from inverse modeling using in situ and global, spacebased  

E-Print Network [OSTI]

SO2 emissions and lifetimes: Estimates from inverse modeling using in situ and global, spacebased 18 March 2011. [1] Topdown constraints on global sulfur dioxide (SO2) emissions are inferred through of GEOSChem for inversion of SO2 columns to emissions. The seasonal mean SO2 lifetime calculated with the GEOS

Martin, Randall

133

1997 SPECIAL ISSUE A Neural Global Workspace Model for Conscious Attention  

E-Print Network [OSTI]

1997 SPECIAL ISSUE A Neural Global Workspace Model for Conscious Attention James Newman,1 Bernard J and 3 Department of Computer Science, Yonsei University (Received 9 July 1996; accepted 24 April 1997 neural network principles. 1997 Elsevier Science Ltd. Keywords--Attention, Binding, Consciousness, Global

Memphis, University of

134

Trend analysis from 1970 to 2008 and model evaluation of EDGARv4 global gridded  

E-Print Network [OSTI]

Trend analysis from 1970 to 2008 and model evaluation of EDGARv4 global gridded anthropogenic.J. Olivier, Diego Guizzardi, Rob Maas and Frank Dentener *Reprinted from Science of the Total Environment Program on the Science and Policy of Global Change combines cutting-edge scientific research

135

Time series modeling and large scale global solar radiation forecasting from geostationary satellites data  

E-Print Network [OSTI]

1 Time series modeling and large scale global solar radiation forecasting from geostationary global solar radiation. In this paper, we use geostationary satellites data to generate 2-D time series of solar radiation for the next hour. The results presented in this paper relate to a particular territory

Paris-Sud XI, Université de

136

Inferring surface heat flux distributions guided by a global seismic model: particular application to Antarctica  

E-Print Network [OSTI]

-flow measurements are rare or entirely absent. This will result in a smooth global heat-flow map that may proveInferring surface heat flux distributions guided by a global seismic model: particular application to Antarctica Nikolai M. Shapiro*, Michael H. Ritzwoller Department of Physics, Center for Imaging the Earth

Shapiro, Nikolai

137

A UNIFIED HARDWARE/SOFTWARE PRIORITY SCHEDULING MODEL FOR GENERAL PURPOSE SYSTEMS  

E-Print Network [OSTI]

Migrating functionality from software to hardware has historically held the promise of enhancing performance through exploiting the inherent parallel nature of hardware. Many early exploratory efforts in repartitioning ...

Preston, Keith Alan

2012-05-31T23:59:59.000Z

138

A self-consistent global model of solenoidal-type inductively coupled plasma discharges including the effects of radio-frequency bias power  

SciTech Connect (OSTI)

We developed a self-consistent global simulator of solenoidal-type inductively coupled plasma discharges and observed the effect of the radio-frequency (rf) bias power on the plasma density and the electron temperature. We numerically solved a set of spatially averaged fluid equations for charged particles, neutrals, and radicals. Absorbed power by electrons is determined by using an analytic electron heating model including the anomalous skin effect. To analyze the effects of rf bias power on the plasma properties, our model also combines the electron heating and global transport modules with an rf sheath module in a self-consistent manner. The simulation results are compared with numerical results by using the commercial software package cfd-ace + (ESI group) and experimental measurements by using a wave cutoff probe and a single Langmuir probe.

Kwon, D. C.; Chang, W. S.; Song, M. Y.; Yoon, J.-S. [Convergence Plasma Research Center, National Fusion Research Institute, Daejeon 305-333 (Korea, Republic of); Park, M. [Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of); You, D. H. [Kyoungwon Tech, Inc., Seongnam 462-806 (Korea, Republic of); You, S. J. [Center for Vacuum Technology, Korea Research Institute of Standard and Science, Daejeon 305-340 (Korea, Republic of); Im, Y. H. [Division of Chemical Engineering, Chonbuk National University, Jeonju 561-756 (Korea, Republic of)

2011-04-01T23:59:59.000Z

139

Comparison of Software Models for Energy Savings from Cool Roofs Joshua New, Oak Ridge National Laboratory (United States)  

E-Print Network [OSTI]

Comparison of Software Models for Energy Savings from Cool Roofs Joshua New, Oak Ridge National consolidates comparison of RSC's projected energy savings to other simulation engines including DOE-2.1E, Attic of the Department of Energy's (DOE) Building Technologies Office (BTO). The simulation engine used in the RSC

Tennessee, University of

140

IEEE TRANSACTIONS ON SOFTWARE ENGINEERING, VOL. 23, NO. 6, JUNE 1997 347 The Amulet Environment: New Models for  

E-Print Network [OSTI]

display and editing of objects, and external analysis and control of interfaces. Amulet integrates: New Models for Effective User Interface Software Development Brad A. Myers, Member, IEEE, Richard G--The Amulet user interface development environment makes it easier for programmers to create highly

Myers, Brad A.

Note: This page contains sample records for the topic "modeling software global" 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

Adjustment and Sensitivity Analyses of a Beta Global Rangeland Model Randall B. Boone1  

E-Print Network [OSTI]

1 Adjustment and Sensitivity Analyses of a Beta Global Rangeland Model Randall B. Boone1 , Richard Institute, P.O. Box 30709, Nairobi 00100, Kenya Contact R.B. Boone at: Randall.Boone@ColoState.edu August 31

Boone, Randall B.

142

Oceanic transports of heat and salt from a global model and data  

E-Print Network [OSTI]

A state estimate produced by ECCO-GODAE from a global one-degree model and data spanning the years 1992-2005 is analyzed in terms of transports of volume, temperature, and freshwater. The estimate is assessed to be ...

Olson, Elise

2006-01-01T23:59:59.000Z

143

Estimation of OTEC Global Resources with an Ocean General Circulation Model  

E-Print Network [OSTI]

Ocean Thermal Energy Conversion (OTEC) relies on the availability of temperature differencesEstimation of OTEC Global Resources with an Ocean General Circulation Model Krishnakumar Rajagopalan Postdoctoral Fellow Department of Ocean and Resources Engineering University of Hawai'i Abstract

Frandsen, Jannette B.

144

Testing Linear Diagnostics of Ensemble Performance on a Simplified Global Circulation Model  

E-Print Network [OSTI]

is inherently flow dependent and that the ensemble predicts potential patterns of forecast errors more reliably than the magnitudes of the errors. A low-resolution global circulation model is implemented to calculate linear diagnostics in the vector space...

Nelson, Ethan

2011-04-21T23:59:59.000Z

145

Global vegetation model diversity and the risks of climate-driven ecosystem shifts  

SciTech Connect (OSTI)

Climate change is modifying global biogeochemical cycles, and is expected to exert increasingly large effects in the future. How these changes will in turn affect and interact with the structure and function of particular ecosystems is unclear, however, both because of scientific uncertainties and the very diversity of global vegetation models in use. Writing in Environmental Research Letters, Warszawski et al. (1) aggregate results from a group of models, across a range of emissions scenarios and climate data, to investigate these risks. Although the models frequently disagree about which specific regions are at risk, they consistently predict a greater chance of ecosystem restructuring with more warming; this risk roughly doubles between 2 and 3 įC increases in global mean temperature. The innovative work of Warszawski et al. represents an important first step towards fully consistent multi-model, multi-scenario assessments of the future risks to global ecosystems.

Bond-Lamberty, Benjamin

2013-11-08T23:59:59.000Z

146

Globalization of biopharmaceutical manufacturing  

E-Print Network [OSTI]

The biomanufacturing industry is changing due to increasing globalization. However, it is changing differently from other high tech industries like software/ semiconductor/ automobiles. In this study we use global ...

Pande, Rachna

2011-01-01T23:59:59.000Z

147

Open source software maturity model based on linear regression and Bayesian analysis  

E-Print Network [OSTI]

Open Source Software (OSS) is widely used and is becoming a significant and irreplaceable part of the software engineering community. Today a huge number of OSS exist. This becomes a problem if one needs to choose from such a large pool of OSS...

Zhang, Dongmin

2009-05-15T23:59:59.000Z

148

BETR Global - A geographically explicit global-scale multimedia contaminant fate model  

E-Print Network [OSTI]

balance†model. †Environmental†Science†&† Technology,†43(4),†direct†sources. †Environmental†Science†&†Technology,†43(making†process. †Environmental†Science†&†Policy,†13(3),†175?

Macleod, M.

2012-01-01T23:59:59.000Z

149

SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration...  

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

SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration Management Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration Management...

150

GLOBAL STABILITY IN CHEMOSTAT-TYPE COMPETITION MODELS WITH NUTRIENT RECYCLING  

E-Print Network [OSTI]

GLOBAL STABILITY IN CHEMOSTAT-TYPE COMPETITION MODELS WITH NUTRIENT RECYCLING SHIGUI RUAN AND XUE- type competition models with nutrient recycling. In the first model the recycling is instantaneous, whereas in the second, the recycling is delayed. They carried out the equilibrium analysis and obtained

Ruan, Shigui

151

Optimization of global model composed of radial basis functions using the term-ranking approach  

SciTech Connect (OSTI)

A term-ranking method is put forward to optimize the global model composed of radial basis functions to improve the predictability of the model. The effectiveness of the proposed method is examined by numerical simulation and experimental data. Numerical simulations indicate that this method can significantly lengthen the prediction time and decrease the Bayesian information criterion of the model. The application to real voice signal shows that the optimized global model can capture more predictable component in chaos-like voice data and simultaneously reduce the predictable component (periodic pitch) in the residual signal.

Cai, Peng; Tao, Chao, E-mail: taochao@nju.edu.cn; Liu, Xiao-Jun [Key Laboratory of Modern Acoustics, Nanjing University, Nanjing 210093 (China)] [Key Laboratory of Modern Acoustics, Nanjing University, Nanjing 210093 (China)

2014-03-15T23:59:59.000Z

152

Modeling aviation's global emissions, uncertainty analysis, and applications to policy  

E-Print Network [OSTI]

(cont.) fuel burn results below 3000 ft. For emissions, the emissions indices were the most influential uncertainties for the variance in model outputs. By employing the model, this thesis examined three policy options for ...

Lee, Joosung Joseph, 1974-

2005-01-01T23:59:59.000Z

153

Centennial Variations of the Global Monsoon Precipitation in the Last Millennium: Results from ECHO-G Model  

E-Print Network [OSTI]

Centennial Variations of the Global Monsoon Precipitation in the Last Millennium: Results from ECHO-G with the ECHAM and the global Hamburg Ocean Primitive Equation (ECHO-G) coupled ocean­atmosphere model

Wang, Bin

154

Global tropospheric ozone modeling: Quantifying errors due to grid resolution  

E-Print Network [OSTI]

model-derived monthly climatologies [Tegen et al. , 1997],extent that the MODIS climatology does. [ 11 ] The standarduse the optional aerosol climatology. These simulations are

Wild, Oliver; Prather, Michael J

2006-01-01T23:59:59.000Z

155

Data Assimilation Tools for CO2 Reservoir Model Development Ė A Review of Key Data Types, Analyses, and Selected Software  

SciTech Connect (OSTI)

Pacific Northwest National Laboratory (PNNL) has embarked on an initiative to develop world-class capabilities for performing experimental and computational analyses associated with geologic sequestration of carbon dioxide. The ultimate goal of this initiative is to provide science-based solutions for helping to mitigate the adverse effects of greenhouse gas emissions. This Laboratory-Directed Research and Development (LDRD) initiative currently has two primary focus areasóadvanced experimental methods and computational analysis. The experimental methods focus area involves the development of new experimental capabilities, supported in part by the U.S. Department of Energyís (DOE) Environmental Molecular Science Laboratory (EMSL) housed at PNNL, for quantifying mineral reaction kinetics with CO2 under high temperature and pressure (supercritical) conditions. The computational analysis focus area involves numerical simulation of coupled, multi-scale processes associated with CO2 sequestration in geologic media, and the development of software to facilitate building and parameterizing conceptual and numerical models of subsurface reservoirs that represent geologic repositories for injected CO2. This report describes work in support of the computational analysis focus area. The computational analysis focus area currently consists of several collaborative research projects. These are all geared towards the development and application of conceptual and numerical models for geologic sequestration of CO2. The software being developed for this focus area is referred to as the Geologic Sequestration Software Suite or GS3. A wiki-based software framework is being developed to support GS3. This report summarizes work performed in FY09 on one of the LDRD projects in the computational analysis focus area. The title of this project is Data Assimilation Tools for CO2 Reservoir Model Development. Some key objectives of this project in FY09 were to assess the current state-of-the-art in reservoir model development, the data types and analyses that need to be performed in order to develop and parameterize credible and robust reservoir simulation models, and to review existing software that is applicable to these analyses. This report describes this effort and highlights areas in which additional software development, wiki application extensions, or related GS3 infrastructure development may be warranted.

Rockhold, Mark L.; Sullivan, E. C.; Murray, Christopher J.; Last, George V.; Black, Gary D.

2009-09-30T23:59:59.000Z

156

Regional forecasting with global atmospheric models; Final report  

SciTech Connect (OSTI)

The purpose of the project was to conduct model simulations for past and future climate change with respect to the proposed Yucca Mtn. repository. The authors report on three main topics, one of which is boundary conditions for paleo-hindcast studies. These conditions are necessary for the conduction of three to four model simulations. The boundary conditions have been prepared for future runs. The second topic is (a) comparing the atmospheric general circulation model (GCM) with observations and other GCMs; and (b) development of a better precipitation data base for the Yucca Mtn. region for comparisons with models. These tasks have been completed. The third topic is preliminary assessments of future climate change. Energy balance model (EBM) simulations suggest that the greenhouse effect will likely dominate climate change at Yucca Mtn. for the next 10,000 years. The EBM study should improve rational choice of GCM CO{sub 2} scenarios for future climate change.

Crowley, T.J.; Smith, N.R. [Applied Research Corp., College Station, TX (United States)

1994-05-01T23:59:59.000Z

157

Comparison of Strong Gravitational Lens Model Software II. HydraLens: Computer-Assisted Strong Gravitational Lens Model Generation and Translation  

E-Print Network [OSTI]

The behavior of strong gravitational lens model software in the analysis of lens models is not necessarily consistent among the various software available, suggesting that the use of several models may enhance the understanding of the system being studied. Among the publicly available codes, the model input files are heterogeneous, making the creation of multiple models tedious. An enhanced method of creating model files and a method to easily create multiple models, may increase the number of comparison studies. HydraLens simplifies the creation of model files for four strong gravitational lens model software packages, including Lenstool, Gravlens/Lensmodel, glafic and PixeLens, using a custom designed GUI for each of the four codes that simplifies the entry of the model for each of these codes, obviating the need for user manuals to set the values of the many flags and in each data field. HydraLens is designed in a modular fashion, which simplifies the addition of other strong gravitational lens codes in th...

Lefor, Alsn T

2015-01-01T23:59:59.000Z

158

Software Tools Wardriving Software  

E-Print Network [OSTI]

Soft TamoGraph: n http://www.tamos.com/products/wifi-site- survey/wireless.php?r1=google&r2=awd_tg p Air://www.aerohive.com/planner p AirTight Planner: n http://www.airtightnetworks.com/home/ products/airtight-planner.html p Air http://www.netstumbler.com/ #12;Site Survey Software p Ekahau HeatMapper: n http://www.ekahau.com/products

Lo Cigno, Renato Antonio

159

Global and multi-scale features of solar wind-magnetosphere coupling: From modeling to forecasting  

E-Print Network [OSTI]

and substorms; 2784 Magnetospheric Physics: Solar wind/magnetosphere interactions; 3210 Mathematical Geophysics in the solar wind-magnetosphere interaction, de- veloping first principles models that encompass allGlobal and multi-scale features of solar wind-magnetosphere coupling: From modeling to forecasting

Sitnov, Mikhail I.

160

Global empirical wind model for the upper mesosphere/lower thermosphere. I. Prevailing wind  

E-Print Network [OSTI]

Global empirical wind model for the upper mesosphere/lower thermosphere. I. Prevailing wind Y. I. An updated empirical climatic zonally aver- aged prevailing wind model for the upper mesosphere/ lower of monthly mean winds from meteor radar and MF radar measurements at more than 40 stations, well distributed

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "modeling software global" 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

The holonic enterprise: a model for Internet-enabled global manufacturing supply chain and workflow  

E-Print Network [OSTI]

The holonic enterprise: a model for Internet-enabled global manufacturing supply chain and workflow, which supports organizational information that, in turn, can mirror social organization. The Holonic with an overview of the three main concepts used to develop our HE model: holonic systems, MAS, and the Internet

Ulieru, Mihaela

162

Parameterization of urban sub-grid scale processes in global atmospheric chemistry models  

E-Print Network [OSTI]

-scale models. (submitted to Journal of Geophysical Research) #12;2 1. Introduction Atmospheric pollution has1 Parameterization of urban sub-grid scale processes in global atmospheric chemistry models Josep such as meteorology. Effective emissions may be √?aged√? emissions of primary pollutants or actual production

163

Modeling the Global Structure of the Heliosphere during the Recent Solar Minimum  

E-Print Network [OSTI]

, Berkeley, California. Abstract. The recent solar minimum, marking the end of solar cycle 23, has beenModeling the Global Structure of the Heliosphere during the Recent Solar Minimum: Model Mikic and Janet G. Luhmann Predictive Science, San Diego, California. Harvard-Smithsonian Center

California at Berkeley, University of

164

ECONOMIC MODELING OF THE GLOBAL ADOPTION OF CARBON CAPTURE AND SEQUESTRATION TECHNOLOGIES  

E-Print Network [OSTI]

ECONOMIC MODELING OF THE GLOBAL ADOPTION OF CARBON CAPTURE AND SEQUESTRATION TECHNOLOGIES J. R. Mc of carbon capture and sequestration technologies as applied to electric generating plants. The MIT Emissions, is used to model carbon capture and sequestration (CCS) technologies based on a natural gas combined cycle

165

Increasing NOAA's computational capacity to improve global forecast modeling  

E-Print Network [OSTI]

Systems Division Stephen J. Lord Director, NWS NCEP Environmental Modeling Center 19 July 2010 (303) 4973060 tom.hamill@noaa.gov #12; 2 Executive Summary The accuracy of many

Hamill, Tom

166

The temporal cascade structure of reanalyses and Global Circulation models  

E-Print Network [OSTI]

and stochastic forecasting. 1. Introduction "Weather prediction by Numerical Process" (Richardson, 1922 equations. While these equations are deterministic, numerical weather prediction has been increasingly of the deterministic models. Interestingly, Richardson is not only the father of numerical weather forecasting, he

Lovejoy, Shaun

167

"Big Picture" Process Modeling Tools |GE Global Research  

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

window) Using process modeling tools to attain cost-effective results for GE customers Jimmy Lopez 2015.03.26 Sometimes, we need to look outside the box to realize the powerful...

168

Integrated Model to Access the Global Environment | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429 Throttled (bot load) ErrorEnergyInnovation FuelsIntegrated FuelGeothermalModel

169

IEEE Transactions on Software Engineering (to appear). Empirical Studies of a Prediction Model for Regression Test  

E-Print Network [OSTI]

for Regression Test Selection Mary Jean Harrold 1 David Rosenblum 2 Gregg Rothermel 3 Elaine Weyuker 4 Abstract Regression testing is an important activity that can account for a large proportion of the cost of software maintenance. One approach to reducing the cost of regression testing is to employ a selective regression

Rothermel, Gregg

170

Long-Range Atmospheric Transport of Polycyclic Aromatic Hydrocarbons: A Global 3-D Model Analysis Including Evaluation of Arctic Sources  

E-Print Network [OSTI]

We use the global 3-D chemical transport model GEOS-Chem to simulate long-range atmospheric transport of polycyclic aromatic hydrocarbons (PAHs). To evaluate the modelís ability to simulate PAHs with different volatilities, ...

Friedman, Carey

171

The AeroCom Evaluation and Intercomparison of Organic Aerosol in Global Models  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

This paper evaluates the current status of global modeling of the organic aerosol (OA) occurrence in the troposphere and analyzes the differences calculated between models as well as between models and observations. Thirty-one global chemistry/transport and general circulation models have participated in this intercomparison, in the framework of AeroCom phase II. The simulation of OA varies greatly between models in terms of the magnitude of primary emissions, secondary OA (SOA) formation, the number of OA species used (2 to 62), the complexity of OA parameterizations (gas-particle partitioning, chemical aging, multiphase chemistry, aerosol microphysics), and the OA physical, chemical and optical properties. The diversity of the global OA simulation results has increased since earlier AeroCom experiments, mainly due to the increasing complexity of the SOA parameterization in models, and the implementation of new, highly uncertain, OA sources. Diversity of over an order of magnitude exists in the modeled vertical distribution of OA that deserves a dedicated future study. Furthermore, although the OA/OC ratio depends on OA sources and atmospheric processing and is important for model evaluation against OA and OC observations, it is resolved only by few global models. The median global primary OA source strength is 56 Tg a 1 (range 34 - 144 Tg a-1) and the median secondary OA source strength (natural and anthropogenic) is 19 Tg a-1 (range 13-121 Tg a-1). Among the models that take into account the semi-volatile SOA nature, the median source is calculated to be 51 Tg a-1 (range 16-121 Tg a-1), much larger than the median value of the models that calculate SOA in a more simplistic way (19 Tg a-1; range 13-20 Tg a-1, with one model at 37 Tg a-1). The median atmospheric burden of OA is 1.4 Tg (24 models in the range of 0.6-2.0 Tg and 4 between 2.4-3.8 Tg) with a median OA lifetime of 5.4 days (range 3.8-9.6 days). In models that reported both OA and sulfate burdens, the median value of the OA/sulfate burden ratio of is calculated to be 0.77; 13 models calculate a ratio lower than 1, and 9 models higher than 1. For 26 models that reported OA deposition fluxes, the median wet removal is 70 Tg a-1 (range 28-209 Tg a-1), which is on average 85% of the total OA deposition.

Tsigaridis, Kostas; Daskalakis, N.; Kanakidou, M.; Adams, P. J.; Artaxo, Paulo; Bahadur, R.; Balkanski, Y.; Bauer, S.; Bellouin, N.; Benedetti, Angela; Bergman, T.; Berntsen, T.; Beukes, J. P.; Bian, Huisheng; Carslaw, K. S.; Chin, M.; Curci, Gabriele; Diehl, Thomas; Easter, Richard C.; Ghan, Steven J.; Gong, S.; Hodzic, Alma; Hoyle, Christopher R.; Iversen, T.; Jathar, S.; Jimenez, J. L.; Kaiser, J. W.; Kirkevag, A.; Koch, Dorothy; Kokkola, H.; Lee, Y. H.; Lin, G.; Liu, Xiaohong; Luo, Gan; Ma, Xiaoyan; Mann, G. W.; Mihalopoulos, Nikos; Morcrette, J. -J.; Muller, J. F.; Myhre, G.; Myriokefalitakis, S.; Ng, Nga L.; O'Donell, D.; Penner, J. E.; Pozzoli, L.; Pringle, K. J.; Russell, Lynn; Schulz, M.; Sciare, J.; Seland, O.; Shindell, Drew; Sillman, S.; Skeie, R. B.; Spracklen, D. V.; Stavrakou, T.; Steenrod, Stephen D.; Takemura, T.; Tiitta, P.; Tilmes, S.; Tost, H.; van Noije, T.; van Zyl, P. G.; von Salzen, Knut; Yu, Fangqun; Wang, Zaizi; Wang, Zhilli; Zaveri, Rahul A.; Zhang, Hua; Zhang, Kai; Zhang, Qi; Zhang, Xiaoye

2014-10-15T23:59:59.000Z

172

Voronoi Tessellations and Their Application to Climate and Global Modeling  

SciTech Connect (OSTI)

We review the use of Voronoi tessellations for grid generation, especially on the whole sphere or in regions on the sphere. Voronoi tessellations and the corresponding Delaunay tessellations in regions and surfaces on Euclidean space are defined and properties they possess that make them well-suited for grid generation purposes are discussed, as are algorithms for their construction. This is followed by a more detailed look at one very special type of Voronoi tessellation, the centroidal Voronoi tessellation (CVT). After defining them, discussing some of their properties, and presenting algorithms for their construction, we illustrate the use of CVTs for producing both quasi-uniform and variable resolution meshes in the plane and on the sphere. Finally, we briefly discuss the computational solution of model equations based on CVTs on the sphere.

Ju, Lili [University of South Carolina; Ringler, Todd [Los Alamos National Laboratory; Gunzburger, Max [Florida State University

2011-01-01T23:59:59.000Z

173

Global instability in a Sellers-type model  

E-Print Network [OSTI]

The Ghil-Sellers energy balance model of Earth's climate, features -- for a considerable range of the solar intensity -- two stable climate states (a warm and a cold snowball Earth), where the bistability results from the celebrated ice-albedo feedback. The unstable solution is obtained and characterized in this paper. We find such unstable states by applying for the first time in a geophysical context the so-called edge tracking method that has been used for studying multiple coexisting states in shear flows. We examine robustness, efficiency, and accuracy properties of the edge tracking algorithm. We find that the procedure is the most efficient when taking a single bisection per cycle. Due to the strong diffusivity of the system trajectories of transient dynamics, initialized between the stable states with respect to the mean temperature, are confined to the heteroclininc trajectory, one which connects the fixed unstable and stable states, after relatively short transient times. This constraint dictates a ...

Bodai, Tamas; Lunkeit, Frank; Boschi, Robert

2014-01-01T23:59:59.000Z

174

A Global, Multi-Resolution Approach to Regional Ocean Modeling  

SciTech Connect (OSTI)

In this collaborative research project between Pennsylvania State University, Colorado State University and Florida State University, we mainly focused on developing multi-resolution algorithms which are suitable to regional ocean modeling. We developed hybrid implicit and explicit adaptive multirate time integration method to solve systems of time-dependent equations that present two signi#12;cantly di#11;erent scales. We studied the e#11;ects of spatial simplicial meshes on the stability and the conditioning of fully discrete approximations. We also studies adaptive #12;nite element method (AFEM) based upon the Centroidal Voronoi Tessellation (CVT) and superconvergent gradient recovery. Some of these techniques are now being used by geoscientists(such as those at LANL).

Du, Qiang

2013-11-08T23:59:59.000Z

175

Modeling the Dynamics of Desakota Regions: Global - Local Nexus in the Taipei Metropolitan Area  

E-Print Network [OSTI]

Since the 1970s, Asia has experienced rapid urbanization processes, which are distinct from U.S. society, and the direction of Asian urbanization is more strongly affected by economic globalization. The desakota model, proposed by McGee and Ginsburg...

Wu, Bing-Sheng

2010-10-12T23:59:59.000Z

176

Conceptual understanding of climate change with a globally resolved energy balance model  

E-Print Network [OSTI]

Conceptual understanding of climate change with a globally resolved energy balance model Dietmar on the surface energy balance by very simple repre- sentations of solar and thermal radiation, the atmospheric and cold regions to warm more than other regions. Keywords Climate dynamics √Ā Climate change √Ā Climate

Dommenget, Dietmar

177

Changes in Temperature and Precipitation Extremes in the IPCC Ensemble of Global Coupled Model Simulations  

E-Print Network [OSTI]

Changes in Temperature and Precipitation Extremes in the IPCC Ensemble of Global Coupled Model September 2006) ABSTRACT Temperature and precipitation extremes and their potential future changes on Climate Change (IPCC) diagnostic exercise for the Fourth Assessment Report (AR4). Climate extremes

178

ENERGY INVESTMENTS UNDER CLIMATE POLICY: A COMPARISON OF GLOBAL MODELS  

SciTech Connect (OSTI)

The levels of investment needed to mobilize an energy system transformation and mitigate climate change are not known with certainty. This paper aims to inform the ongoing dialogue and in so doing to guide public policy and strategic corporate decision making. Within the framework of the LIMITS integrated assessment model comparison exercise, we analyze a multi-IAM ensemble of long-term energy and greenhouse gas emissions scenarios. Our study provides insight into several critical but uncertain areas related to the future investment environment, for example in terms of where capital expenditures may need to flow regionally, into which sectors they might be concentrated, and what policies could be helpful in spurring these financial resources. We find that stringent climate policies consistent with a 2įC climate change target would require a considerable upscaling of investments into low-carbon energy and energy efficiency, reaching approximately $45 trillion (range: $30Ė$75 trillion) cumulative between 2010 and 2050, or about $1.1 trillion annually. This represents an increase of some $30 trillion ($10Ė$55 trillion), or $0.8 trillion per year, beyond what investments might otherwise be in a reference scenario that assumes the continuation of present and planned emissions-reducing policies throughout the world. In other words, a substantial "clean-energy investment gap" of some $800 billion/yr exists ó notably on the same order of magnitude as present-day subsidies for fossil energy and electricity worldwide ($523 billion). Unless the gap is filled rather quickly, the 2įC target could potentially become out of reach.

McCollum, David; Nagai, Yu; Riahi, Keywan; Marangoni, Giacomo; Calvin, Katherine V.; Pietzcker, Robert; Van Vliet, Jasper; van der Zwaan, Bob

2013-11-01T23:59:59.000Z

179

SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Design...  

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

SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Design Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Design Checklist This checklist is intended to...

180

Automatic Calibration of a Building Energy Simulation Model Using a Global Optimization Program  

E-Print Network [OSTI]

AUTOMATIC CALIBRATION OF A BUILDING ENERGY SIMULATION MODEL USING A GLOBAL OPTIMIZATION PROGRAM Seung Uk Lee Research Associate Texas A&M University Energy Systems Laboratory College Station, TX David E. Claridge, Ph.D., P....E. Professor Texas A&M University Energy Systems Laboratory College Station, TX ABSTRACT A simulation model used to analyze the energy performance of an existing building should be calibrated to measured consumption data from...

Lee, S. U.; Claridge, D.

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling software global" 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

RELAP-7 SOFTWARE VERIFICATION AND VALIDATION PLAN  

SciTech Connect (OSTI)

This INL plan comprehensively describes the software for RELAP-7 and documents the software, interface, and software design requirements for the application. The plan also describes the testing-based software verification and validation (SV&V) processóa set of specially designed software models used to test RELAP-7.

Smith, Curtis L [Idaho National Laboratory; Choi, Yong-Joon [Idaho National Laboratory; Zou, Ling [Idaho National Laboratory

2014-09-01T23:59:59.000Z

182

Comparing Supply-Side Specifications in Models of Global Agriculture and the Food System  

SciTech Connect (OSTI)

This paper compares the theoretical specification of production and technical change across the partial equilibrium (PE) and computable general equilibrium (CGE) models of the global agricultural and food system included in the AgMIP model comparison study. The two modeling approaches have different theoretical underpinnings concerning the scope of economic activity they capture and how they represent technology and the behavior of supply and demand in markets. This paper focuses on their different specifications of technology and supply behavior, comparing their theoretical and empirical treatments. While the models differ widely in their specifications of technology, both within and between the PE and CGE classes of models, we find that the theoretical responsiveness of supply to changes in prices can be similar, depending on parameter choices that define the behavior of supply functions over the domain of applicability defined by the common scenarios used in the AgMIP comparisons. In particular, we compare the theoretical specification of supply in CGE models with neoclassical production functions and PE models that focus on land and crop yields in agriculture. In practice, however, comparability of results given parameter choices is an empirical question, and the models differ in their sensitivity to variations in specification. To illustrate the issues, sensitivity analysis is done with one global CGE model, MAGNET, to indicate how the results vary with different specification of technical change, and how they compare with the results from PE models.

Robinson, Sherman; van Meijl, Hans; Willenbockel, Dirk; Valin, Hugo; Fujimori, Shinichiro; Masui, Toshihiko; Sands, Ronald; Wise, Marshall A.; Calvin, Katherine V.; Havlik, Petr; Mason d'Croz, Daniel; Tabeau, Andrzej; Kavallari, Aikaterini; Schmitz, Christoph; Dietrich, Jan P.; von Lampe, Martin

2014-01-01T23:59:59.000Z

183

Impacts of increased bioenergy demand on global food markets: an AgMIP economic model intercomparison  

SciTech Connect (OSTI)

Integrated Assessment studies have shown that meeting ambitious greenhouse gas mitigation targets will require substantial amounts of bioenergy as part of the future energy mix. In the course of the Agricultural Model Comparison and Improvement Project (AgMIP), five global agro-economic models were used to analyze a future scenario with global demand for ligno-cellulosic bioenergy rising to about 100 ExaJoule in 2050. From this exercise a tentative conclusion can be drawn that ambitious climate change mitigation need not drive up global food prices much, if the extra land required for bioenergy production is accessible or if the feedstock, e.g. from forests, does not directly compete for agricultural land. Agricultural price effects across models by the year 2050 from high bioenergy demand in an RCP2.6-type scenario appear to be much smaller (+5% average across models) than from direct climate impacts on crop yields in an RCP8.5-type scenario (+25% average across models). However, potential future scarcities of water and nutrients, policy-induced restrictions on agricultural land expansion, as well as potential welfare losses have not been specifically looked at in this exercise.

Lotze-Campen, Hermann; von Lampe, Martin; Kyle, G. Page; Fujimori, Shinichiro; Havlik, Petr; van Meijl, Hans; Hasegawa, Tomoko; Popp, Alexander; Schmitz, Christoph; Tabeau, Andrzej; Valin, Hugo; Willenbockel, Dirk; Wise, Marshall A.

2014-01-01T23:59:59.000Z

184

Intercomparison and evaluation of global aerosol microphysical properties among AeroCom models of a range of complexity  

E-Print Network [OSTI]

Many of the next generation of global climate models will include aerosol schemes which explicitly simulate the microphysical processes that determine the particle size distribution. These models enable aerosol optical ...

Ridley, David Andrew

185

Impact of emissions, chemistry, and climate on atmospheric carbon monoxide : 100-year predictions from a global chemistry-climate model  

E-Print Network [OSTI]

The possible trends for atmospheric carbon monoxide in the next 100 yr have been illustrated using a coupled atmospheric chemistry and climate model driven by emissions predicted by a global economic development model. ...

Wang, Chien.; Prinn, Ronald G.

186

Why Do Global Long-term Scenarios for Agriculture Differ? An overview of the AgMIP Global Economic Model Intercomparison  

SciTech Connect (OSTI)

Recent studies assessing plausible futures for agricultural markets and global food security have had contradictory outcomes. Ten global economic models that produce long-term scenarios were asked to compare a reference scenario with alternate socio-economic, climate change and bioenergy scenarios using a common set of key drivers. Results suggest that, once general assumptions are harmonized, the variability in general trends across models declines, and that several common conclusions are possible. Nonetheless, differences in basic model parameters, sometimes hidden in the way market behavior is modeled, result in significant differences in the details. This holds for both the common reference scenario and for the various shocks applied. We conclude that agro-economic modelers aiming to inform the agricultural and development policy debate require better data and analysis on both economic behavior and biophysical drivers. More interdisciplinary modeling efforts are required to cross-fertilize analyses at different scales.

von Lampe, Martin; Willenbockel, Dirk; Ahammad, Helal; Blanc, Elodie; Cai, Yongxia; Calvin, Katherine V.; Fujimori, Shinichiro; Hasegawa, Tomoko; Havlik, Petr; Kyle, G. Page; Lotze-Campen, Hermann; Mason d'Croz, Daniel; Nelson, Gerald; Sands, Ronald; Schmitz, Christoph; Tabeau, Andrzej; Valin, Hugo; van der Mensbrugghe, Dominique; van Meijl, Hans

2014-01-01T23:59:59.000Z

187

Is the Ozone Depletion Regime a Model for an Emerging Regime on Global Warming?  

E-Print Network [OSTI]

the for- mation of a global warming regime produces a highlydepletion and the global warming regimes was recognized byan Emerging Regime on Global Warming? by Winfried Lang I.

Lang, Winfried

1991-01-01T23:59:59.000Z

188

Assessing the Effects of Anthropogenic Aerosols on Pacific Storm Track Using a Multiscale Global Climate Model  

SciTech Connect (OSTI)

Atmospheric aerosols impact weather and global general circulation by modifying cloud and precipitation processes, but the magnitude of cloud adjustment by aerosols remains poorly quantified and represents the largest uncertainty in estimated forcing of climate change. Here we assess the impacts of anthropogenic aerosols on the Pacific storm track using a multi-scale global aerosol-climate model (GCM). Simulations of two aerosol scenarios corresponding to the present day and pre-industrial conditions reveal long-range transport of anthropogenic aerosols across the north Pacific and large resulting changes in the aerosol optical depth, cloud droplet number concentration, and cloud and ice water paths. Shortwave and longwave cloud radiative forcing at the top of atmosphere are changed by - 2.5 and + 1.3 W m-2, respectively, by emission changes from pre-industrial to present day, and an increased cloud-top height indicates invigorated mid-latitude cyclones. The overall increased precipitation and poleward heat transport reflect intensification of the Pacific storm track by anthropogenic aerosols. Hence, this work provides for the first time a global perspective of the impacts of Asian pollution outflows from GCMs. Furthermore, our results suggest that the multi-scale modeling framework is essential in producing the aerosol invigoration effect of deep convective clouds on the global scale.

Wang, Yuan; Wang, Minghuai; Zhang, Renyi; Ghan, Steven J.; Lin, Yun; Hu, Jiaxi; Pan, Bowen; Levy, Misti; Jiang, Jonathan; Molina, Mario J.

2014-05-13T23:59:59.000Z

189

User's guide to DIANE Version 2. 1: A microcomputer software package for modeling battery performance in electric vehicle applications  

SciTech Connect (OSTI)

DIANE is an interactive microcomputer software package for the analysis of battery performance in electric vehicle (EV) applications. The principal objective of this software package is to enable the prediction of EV performance on the basis of laboratory test data for batteries. The model provides a second-by-second simulation of battery voltage and current for any specified velocity/time or power/time profile. The capability of the battery is modeled by an algorithm that relates the battery voltage to the withdrawn current, taking into account the effect of battery depth-of-discharge (DOD). Because of the lack of test data and other constraints, the current version of DIANE deals only with vehicles using fresh'' batteries with or without regenerative braking. Deterioration of battery capability due to aging can presently be simulated with user-input parameters accounting for an increase of effective internal resistance and/or a decrease of cell no-load voltage. DIANE 2.1 is written in FORTRAN language for use on IBM-compatible microcomputers. 7 refs.

Marr, W.W.; Walsh, W.J. (Argonne National Lab., IL (USA). Energy Systems Div.); Symons, P.C. (Electrochemical Engineering Consultants, Inc., Morgan Hill, CA (USA))

1990-06-01T23:59:59.000Z

190

The emerging market for Web-based enterprise software  

E-Print Network [OSTI]

Web-based enterprise software - sometimes referred to as "Software as a Service" (SaaS) or "on demand software" - is a major wave of innovation that introduces a new technical and economic model to enterprise software. The ...

GŲldi, Andreas (Andreas Jakob)

2007-01-01T23:59:59.000Z

191

Finite Element Analysis of the Amontons-Coulomb's Model using Local and Global Friction Tests  

SciTech Connect (OSTI)

In spite of the abundant number of experimental friction tests that have been reported, the contact with friction modeling persists to be one of the factors that determine the effectiveness of sheet metal forming simulation. This difficulty can be understood due to the nature of the friction phenomena, which comprises the interaction of different factors connected to both sheet and tools' surfaces. Although in finite element numerical simulations friction models are commonly applied at the local level, they normally rely on parameters identified based on global experimental tests results. The aim of this study is to analyze the applicability of the Amontons-Coulomb's friction coefficient identified using complementary tests: (i) load-scanning, at the local level and (ii) draw-bead, at the global level; to the numerical simulation of sheet metal forming processes.

Oliveira, M. C.; Menezes, L. F.; Ramalho, A. [CEMUC, Department of Mechanical Engineering, University of Coimbra, Polo II, Rua Luis Reis Santos, Pinhal de Marrocos, 3030-788 Coimbra (Portugal); Alves, J. L. [Department of Mechanical Engineering, University of Minho, Campus de Azurem, 4800-058, Guimaraes (Portugal)

2011-05-04T23:59:59.000Z

192

FRAMES-2.0 Software System: Linking to the Groundwater Modeling System (GMS) RT3D and MT3DMS Models  

SciTech Connect (OSTI)

Linkages to the Groundwater Modeling System have been developed at Pacific Northwest National Laboratory to enable the Nuclear Regulatory Commission (NRC) to more realistically assess the risk to the public of radioactive contaminants at NRC-licensed sites. Common software tools presently in use are limited in that they cannot assess contaminant migration through complex natural environments. The purpose of this initiative is to provide NRC with a licensing safety-analysis tool with sufficient power, flexibility, and utility that it can serve as the primary software platform for analyzing the hazards associated with licensing actions at those ďcomplexĒ sites at which the traditional tools are inappropriate. As a tool designed to realistically approximate prospective doses to the public, this initiative addresses NRCís safety-performance goal by confirming that licensing actions do not result in undue risk to the public.

Whelan, Gene; Castleton, Karl J.; Pelton, Mitch A.

2007-08-08T23:59:59.000Z

193

Progress in the Development of Global Medium-Energy Nucleon-Nucleus Optical Model Potentials  

E-Print Network [OSTI]

Two existing global medium-energy nucleon-nucleus phenomenological optical model potentials are described and compared with experiment and with each other. The first of these employs a Dirac approach (second-order reduction) that is global in projectile energy and projectile isospin and applies to the target nucleus 208-Pb. Here the standard S-V (isoscalar-scalar, isoscalar-vector) model has been extended to include the corresponding isovector components by introduction of a relativistic Lane model. The second of these employs a relativistic equivalent to the Schroedinger equation and is global in projectile energy, projectile isospin, and target (Z,A). Here, particular attention is given to predictions for the integrated scattering observables - neutron total cross sections and proton total reaction cross sections - and their sensitivity to the absorptive parts of the potential. Finally, current work is described and the influence of the nuclear bound state problem (treated in relativistic mean field theory) on the Dirac scattering problem is mentioned.

David G. Madland

1997-02-14T23:59:59.000Z

194

Numerical Weather Prediction (NWP) and hybrid ARMA/ANN model to predict global radiation  

E-Print Network [OSTI]

We propose in this paper an original technique to predict global radiation using a hybrid ARMA/ANN model and data issued from a numerical weather prediction model (ALADIN). We particularly look at the Multi-Layer Perceptron. After optimizing our architecture with ALADIN and endogenous data previously made stationary and using an innovative pre-input layer selection method, we combined it to an ARMA model from a rule based on the analysis of hourly data series. This model has been used to forecast the hourly global radiation for five places in Mediterranean area. Our technique outperforms classical models for all the places. The nRMSE for our hybrid model ANN/ARMA is 14.9% compared to 26.2% for the na\\"ive persistence predictor. Note that in the stand alone ANN case the nRMSE is 18.4%. Finally, in order to discuss the reliability of the forecaster outputs, a complementary study concerning the confidence interval of each prediction is proposed

Voyant, Cyril; Paoli, Christophe; Nivet, Marie Laure

2012-01-01T23:59:59.000Z

195

Second Level Cluster Dependencies: A Comparison of Modeling Software and Missing Data Techniques  

E-Print Network [OSTI]

@ 1 C A = 0 B @ G 0 0 R 1 C A . (1.9) 1. The Independence Model In the scenario where all the teachers? measurements are independent of each other and across the years, and thus there is no second level dependency (SLD....12). 2. The Correlated Cluster Model Moving from the independence model assumption to the correlated cluster model, in which the teacher?s measurements may be dependent across the years, requires the SLD to be modeled in some way. A common modeling...

Larsen, Ross Allen Andrew

2011-10-21T23:59:59.000Z

196

Application of the Software as a Service Model to the Control of Complex Building Systems  

E-Print Network [OSTI]

Modeling with Combined Heat and Power ApplicationsĒ,DG) equipment, combined heat and power (CHP), and electrical

Stadler, Michael

2012-01-01T23:59:59.000Z

197

Model Development Development of a system emulating the global carbon cycle in Earth system models  

E-Print Network [OSTI]

developed a loosely coupled model (LCM) which can represent the outputs of a GCMbased Earth system model

K. Tachiiri; J. C. Hargreaves; J. D. Annan; A. Oka; A. Abe-ouchi; M. Kawamiya

2010-01-01T23:59:59.000Z

198

Matilda: A Distributed UML Virtual Machine for Model-Driven Software Development  

E-Print Network [OSTI]

is designed as a pipeline (or sequence) of plugins. Different plugins implement different functionalities in Matilda, such as importing UML models, validating UML models and construct- ing a JAST. The pipeline, called Matilda, which allows developers to design their applications as UML models and directly execute

Suzuki, Jun

199

Environmental Modelling & Software 15 (2000) 681692 www.elsevier.com/locate/envsoft  

E-Print Network [OSTI]

-scale air pollution modelling using adaptive unstructured meshes A.S. Tomlin a,* , S. Ghorai a , G. Hart of Computer Studies, University of Leeds, Leeds LS2 9JT, UK Abstract High resolution models of air pollution but less so in meteorological and air pollution models. However, it is well known that grid resolution has

Utah, University of

200

The new GFDL global atmosphere and land model AM2/LM2: Evaluation with prescribed SST simulations  

E-Print Network [OSTI]

The new GFDL global atmosphere and land model AM2/LM2: Evaluation with prescribed SST simulations climatology, and components from previous models used at GFDL. The land model, known as LM2, includes soil of the coupled model AM2/LM2 is evaluated with a series of prescribed sea-surface temperature (SST) simulations

Bretherton, Chris

Note: This page contains sample records for the topic "modeling software global" 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

Supplementary Information for: Global soil carbon projections are improved by modeling microbial processes. William R. Wieder, Gordon B. Bonan, & Steven D. Allison (2.1 MB .pdf)  

E-Print Network [OSTI]

total = 660 Pg C; (b) Observed soil profile, global total = 1259 Pg C; (c) CLM microbial model surface soils, global total = 784 Pg C [spatial correlation with observations (r) = 0.75, model-weighted root mean square error (RMSE) = 2.9 kg C m-2 ]; (d) CLM microbial model soil profile, global total = 1310 Pg

Saleska, Scott

202

Impact of transport model errors on the global and regional methane emissions estimated by inverse modelling  

E-Print Network [OSTI]

A modelling experiment has been conceived to assess the impact of transport model errors on methane emissions estimated in an atmospheric inversion system. Synthetic methane observations, obtained from 10 different model ...

Locatelli, R.

203

An integrated life cycle quality model for general public market software products  

E-Print Network [OSTI]

. The requirements are built upon existing industry standards, including ISO 9001. The TL 9000 Quality System quality view of TL9000 Handbook and detailed view from ISO/IEC 1926 in the process of defining, measuring by TL9000-ISO complement model as well as by application process walk-through. #12;1. Complement model

Laporte, Claude Y.

204

The U.S. Research University as a Global Model: Some Fundamental Problems to Consider  

E-Print Network [OSTI]

The political economy of globalization in the Americas. PaloThe political economy of globalization in the Americas (pp.The political economy of globalization in the Americas (pp.

Rhoads, Robert A.

2011-01-01T23:59:59.000Z

205

Evaluating Clouds, Aerosols, and their Interactions in Three Global Climate Models using COSP and Satellite Observations  

SciTech Connect (OSTI)

Accurately representing aerosol-cloud interactions in global climate models is challenging. As parameterizations evolve, it is important to evaluate their performance with appropriate use of observations. In this work we compare aerosols, clouds, and their interactions in three climate models (AM3, CAM5, ModelE) to MODIS satellite observations. Modeled cloud properties were diagnosed using the CFMIP Observations Simulator Package (COSP). Cloud droplet number concentrations (N) were derived using the same algorithm for both satellite-simulated model values and observations. We find that aerosol optical depth tau simulated by models is similar to observations. For N, AM3 and CAM5 capture the observed spatial pattern of higher values in near-coast versus remote ocean regions, though modeled values in general are higher than observed. In contrast, ModelE simulates lower N in most near-coast versus remote regions. Aerosol- cloud interactions were computed as the sensitivity of N to tau for marine liquid clouds off the coasts of South Africa and Eastern Asia where aerosol pollution varies in time. AM3 and CAM5 are in most cases more sensitive than observations, while the sensitivity for ModelE is statistically insignificant. This widely used sensitivity could be subject to misinterpretation due to the confounding influence of meteorology on both aerosols and clouds. A simple framework for assessing the N Ė tau sensitivity at constant meteorology illustrates that observed sensitivity can change from positive to statistically insignificant when including the confounding influence of relative humidity. Satellite simulated values of N were compared to standard model output and found to be higher with a bias of 83 cm-3.

Ban-Weiss, George; Jin, Ling; Bauer, S.; Bennartz, Ralph; Liu, Xiaohong; Zhang, Kai; Ming, Yi; Guo, Huan; Jiang, Jonathan

2014-09-23T23:59:59.000Z

206

Evolution of Meteorological Base Models for Estimating Hourly Global Solar Radiation in Texas  

E-Print Network [OSTI]

ESL-PA-13-11-01 Available online at www.sciencedirect.com Energy Procedia 00 (2013) 000Ė000 www.elsevier.com/locate/procedia 2013 ISES Solar World Congress Evaluation of Meteorological Base Models... for Estimating Hourly Global Solar Radiation in Texas Kee Han Kima,b*, Juan-Carlos Baltazarb, and Jeff S. Haberla,b aDepartment of Architecture, Texas A&M University, 3137 TAMU, College Station, TX 77843-3137, U.S.A. bEnergy Systems Laboratory, Texas A...

Kim, H.; Baltazar, J.C.; Haberl, J.S

207

Collaborative Proposal: Transforming How Climate System Models are Used: A Global, Multi-Resolution Approach  

SciTech Connect (OSTI)

Despite the great interest in regional modeling for both weather and climate applications, regional modeling is not yet at the stage that it can be used routinely and effectively for climate modeling of the ocean. The overarching goal of this project is to transform how climate models are used by developing and implementing a robust, efficient, and accurate global approach to regional ocean modeling. To achieve this goal, we will use theoretical and computational means to resolve several basic modeling and algorithmic issues. The first task is to develop techniques for transitioning between parameterized and high-fidelity regional ocean models as the discretization grid transitions from coarse to fine regions. The second task is to develop estimates for the error in scientifically relevant quantities of interest that provide a systematic way to automatically determine where refinement is needed in order to obtain accurate simulations of dynamic and tracer transport in regional ocean models. The third task is to develop efficient, accurate, and robust time-stepping schemes for variable spatial resolution discretizations used in regional ocean models of dynamics and tracer transport. The fourth task is to develop frequency-dependent eddy viscosity finite element and discontinuous Galerkin methods and study their performance and effectiveness for simulation of dynamics and tracer transport in regional ocean models. These four projects share common difficulties and will be approach using a common computational and mathematical toolbox. This is a multidisciplinary project involving faculty and postdocs from Colorado State University, Florida State University, and Penn State University along with scientists from Los Alamos National Laboratory. The completion of the tasks listed within the discussion of the four sub-projects will go a long way towards meeting our goal of developing superior regional ocean models that will transform how climate system models are used.

Estep, Donald

2013-04-15T23:59:59.000Z

208

Automated Tuning of Optimization Software Parameters  

E-Print Network [OSTI]

Oct 29, 2007 ... Keywords: parameter tuning, machine learning, design of experiments, artificial intelligence. Category 1: Optimization Software and Modeling†...

Mustafa Baz

2007-10-29T23:59:59.000Z

209

Agriculture and Climate Change in Global Scenarios: Why Don't the Models Agree  

SciTech Connect (OSTI)

Agriculture is unique among economic sectors in the nature of impacts from climate change. The production activity that transforms inputs into agricultural outputs makes direct use of weather inputs. Previous studies of the impacts of climate change on agriculture have reported substantial differences in outcomes of key variables such as prices, production, and trade. These divergent outcomes arise from differences in model inputs and model specification. The goal of this paper is to review climate change results and underlying determinants from a model comparison exercise with 10 of the leading global economic models that include significant representation of agriculture. By providing common productivity drivers that include climate change effects, differences in model outcomes are reduced. All models show higher prices in 2050 because of negative productivity shocks from climate change. The magnitude of the price increases, and the adaptation responses, differ significantly across the various models. Substantial differences exist in the structural parameters affecting demand, area, and yield, and should be a topic for future research.

Nelson, Gerald; van der Mensbrugghe, Dominique; Ahammad, Helal; Blanc, Elodie; Calvin, Katherine V.; Hasegawa, Tomoko; Havlik, Petr; Heyhoe, Edwina; Kyle, G. Page; Lotze-Campen, Hermann; von Lampe, Martin; Mason d'Croz, Daniel; van Meijl, Hans; Mueller, C.; Reilly, J. M.; Robertson, Richard; Sands, Ronald; Schmitz, Christoph; Tabeau, Andrzej; Takahashi, Kiyoshi; Valin, Hugo; Willenbockel, Dirk

2014-01-01T23:59:59.000Z

210

Environmental Modelling & Software 19 (2004) 285304 www.elsevier.com/locate/envsoft  

E-Print Network [OSTI]

Water Management District, Everglades Department, PO Box 24680, West Palm Beach, Florida 33416-4680, USA for Ecological Economics, University of Vermont, 590 Main Street, Burlington, VT 05405-0088, USA b South Florida are formulated as STELLA models, which adds to transparency and helps reuse. Spatial transport processes

Vermont, University of

211

Automated Software Engineering Process Assessment: Supporting Diverse Models using an Ontology  

E-Print Network [OSTI]

, ISO 9001). It also provides an in-the-loop automated process assessment capability that can help, ISO 9001), and suitable performance and scalability. The approach can reduce the effort required assessment while simultaneously supporting diverse process assessment reference models (CMMI, ISO/IEC 15504

Ulm, Universität

212

The Thermodynamic Influence of Subgrid Orography in a Global Climate Model  

SciTech Connect (OSTI)

Assessments of the impacts of climate change typically require information at scales of 10 km or less. Such a resolution will not be achieved by global climate models for many years. We have developed an alternative to explicit resolution that can meet the needs of climate change impact assessment now. We have applied to a global climate model a physically-based subgrid-scale treatment of the influence of orography on temperature, clouds, precipitation, and land surface hydrology. The treatment represents subgrid variations in surface elevation in terms of fractional area distributions of discrete elevation classes. For each class it calculates the height rise/descent of air parcels traveling through the grid cell, and applies the influence of the rise/descent to the temperature and humidity profiles of the elevation class. Cloud, radiative, and surface processes are calculated separately for each elevation class using the same physical parameterizations used by the model without the subgrid parameterization. The simulated climate fields for each elevation class can then be distributed in post-processing according to the spatial distribution of surface elevation within each grid cell. Parallel 10-year simulations with and without the subgrid treatment have been performed. The simulated temperature, precipitation and snow water are mapped to 2.5 minute (~5 km) resolution and compared with gridded analyses of station measurements. The simulation with the subgrid scheme produces a much more realistic distribution of snow water and significantly more realistic distributions of temperature and precipitation than the simulation without the subgrid scheme. Moreover, the grid cell means of most other fields are virtually unchanged by the subgrid scheme. This suggests that the tuning of the climate model without the subgrid scheme is also applicable to the model with the scheme.

Ghan, Steven J.; Bian, Xindi; Hunt, Allen G.; Coleman, Andre M.

2002-11-01T23:59:59.000Z

213

3rd International Conference on Countermeasures to Urban Heat Island Venice, October 13-15, 2014 Comparison of Software Models for  

E-Print Network [OSTI]

Comparison of Software Models for Energy Savings from Cool Roofs Joshua Newa, William A. Millera, Yu (Joe their effects on the building's heating and cooling energy use · AtticSim is a detailed simulation program- based tool to estimate cool-roof energy savings 2 2014-08-20: The Roof Savings Calculator (RSC

Tennessee, University of

214

ICSE Workshop on Green and Sustainable Software Engineering, Zurich, Switzerland, 3rd June 2012 An Energy Consumption Model and Analysis Tool for Cloud Computing  

E-Print Network [OSTI]

system-level optimisation. Keywords-green computing; Cloud computing; energy consumption; performanceIn 1st ICSE Workshop on Green and Sustainable Software Engineering, Zurich, Switzerland, 3rd June 2012 An Energy Consumption Model and Analysis Tool for Cloud Computing Environments FeiFei Chen, Jean

Schneider, Jean-Guy

215

A Vast Machine Computer Models, Climate Data, and the Politics of Global Warming  

E-Print Network [OSTI]

. Climatology--History. 3. Meteorology--History. 4. Climatology--Technological innovation. 5. Global temperature

Edwards, Paul N.

216

Global well-posedness of strong solutions to a tropical climate model  

E-Print Network [OSTI]

In this paper, we consider the Cauchy problem to the TROPIC CLIMATE MODEL derived by Frierson-Majda-Pauluis in [Comm. Math. Sci, Vol. 2 (2004)] which is a coupled system of the barotropic and the first baroclinic modes of the velocity and the typical midtropospheric temperature. The system considered in this paper has viscosities in the momentum equations, but no diffusivity in the temperature equation. We establish here the global well-posedness of strong solutions to this model. In proving the global existence of strong solutions, to overcome the difficulty caused by the absence of the diffusivity in the temperature equation, we introduce a new velocity $w$ (called the pseudo baroclinic velocity), which has more regularities than the original baroclinic mode of the velocity. An auxiliary function $\\phi$, which looks like the effective viscous flux for the compressible Navier-Stokes equations, is also introduced to obtain the $L^\\infty$ bound of the temperature. Regarding the uniqueness, we use the idea of p...

Li, Jinkai

2015-01-01T23:59:59.000Z

217

Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds  

SciTech Connect (OSTI)

The 'Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds' project focused extensively on the analysis and utilization of water vapor and aerosol profiles derived from the ARM Raman lidar at the Southern Great Plains ARM site. A wide range of different tasks were performed during this project, all of which improved quality of the data products derived from the lidar or advanced the understanding of atmospheric processes over the site. These activities included: upgrading the Raman lidar to improve its sensitivity; participating in field experiments to validate the lidar aerosol and water vapor retrievals; using the lidar aerosol profiles to evaluate the accuracy of the vertical distribution of aerosols in global aerosol model simulations; examining the correlation between relative humidity and aerosol extinction, and how these change, due to horizontal distance away from cumulus clouds; inferring boundary layer turbulence structure in convective boundary layers from the high-time-resolution lidar water vapor measurements; retrieving cumulus entrainment rates in boundary layer cumulus clouds; and participating in a field experiment that provided data to help validate both the entrainment rate retrievals and the turbulent profiles derived from lidar observations.

Turner, David, D.; Ferrare, Richard, A.

2011-07-06T23:59:59.000Z

218

Using CORE Model-Based Systems Engineering Software to Support Program Management in the U.S. Department of Energy Office of the Biomass Project: Preprint  

SciTech Connect (OSTI)

This paper describes how a model-based systems engineering software, CORE, is helping the U. S. Department of Energy's Office of Biomass Program assist with bringing biomass-derived biofuels to the market. This software tool provides information to guide informed decision-making as biomass-to-biofuels systems are advanced from concept to commercial adoption. It facilitates management and communication of program status by automatically generating custom reports, Gantt charts, and tables using the widely available programs of Microsoft Word, Project and Excel.

Riley, C.; Sandor, D.; Simpkins, P.

2006-11-01T23:59:59.000Z

219

An integrated assessment modeling framework for uncertainty studies in global and regional climate change: the MIT IGSM-CAM (version 1.0)  

E-Print Network [OSTI]

This paper describes a computationally efficient framework for uncertainty studies in global and regional climate change. In this framework, the Massachusetts Institute of Technology (MIT) Integrated Global System Model ...

Monier, Erwan

220

Accounting for Global Climate Model Projection Uncertainty in Modern Statistical Downscaling  

SciTech Connect (OSTI)

Future climate change has emerged as a national and a global security threat. To carry out the needed adaptation and mitigation steps, a quantification of the expected level of climate change is needed, both at the global and the regional scale; in the end, the impact of climate change is felt at the local/regional level. An important part of such climate change assessment is uncertainty quantification. Decision and policy makers are not only interested in 'best guesses' of expected climate change, but rather probabilistic quantification (e.g., Rougier, 2007). For example, consider the following question: What is the probability that the average summer temperature will increase by at least 4 C in region R if global CO{sub 2} emission increases by P% from current levels by time T? It is a simple question, but one that remains very difficult to answer. It is answering these kind of questions that is the focus of this effort. The uncertainty associated with future climate change can be attributed to three major factors: (1) Uncertainty about future emission of green house gasses (GHG). (2) Given a future GHG emission scenario, what is its impact on the global climate? (3) Given a particular evolution of the global climate, what does it mean for a particular location/region? In what follows, we assume a particular GHG emission scenario has been selected. Given the GHG emission scenario, the current batch of the state-of-the-art global climate models (GCMs) is used to simulate future climate under this scenario, yielding an ensemble of future climate projections (which reflect, to some degree our uncertainty of being able to simulate future climate give a particular GHG scenario). Due to the coarse-resolution nature of the GCM projections, they need to be spatially downscaled for regional impact assessments. To downscale a given GCM projection, two methods have emerged: dynamical downscaling and statistical (empirical) downscaling (SDS). Dynamic downscaling involves configuring and running a regional climate model (RCM) nested within a given GCM projection (i.e., the GCM provides bounder conditions for the RCM). On the other hand, statistical downscaling aims at establishing a statistical relationship between observed local/regional climate variables of interest and synoptic (GCM-scale) climate predictors. The resulting empirical relationship is then applied to future GCM projections. A comparison of the pros and cons of dynamical versus statistical downscaling is outside the scope of this effort, but has been extensively studied and the reader is referred to Wilby et al. (1998); Murphy (1999); Wood et al. (2004); Benestad et al. (2007); Fowler et al. (2007), and references within those. The scope of this effort is to study methodology, a statistical framework, to propagate and account for GCM uncertainty in regional statistical downscaling assessment. In particular, we will explore how to leverage an ensemble of GCM projections to quantify the impact of the GCM uncertainty in such an assessment. There are three main component to this effort: (1) gather the necessary climate-related data for a regional SDS study, including multiple GCM projections, (2) carry out SDS, and (3) assess the uncertainty. The first step is carried out using tools written in the Python programming language, while analysis tools were developed in the statistical programming language R; see Figure 1.

Johannesson, G

2010-03-17T23:59:59.000Z

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


221

Software Developers  

Broader source: Energy.gov [DOE]

Because SEED will provide a common, open-source data framework, software developers will be able to write applications that access the data in a consistent way (with proper permissions), or build functionalities onto the SEED platform in a replicable way.

222

A sensitivity study of the thermodynamic environment on GFDL model hurricane intensity: Implications for global warming  

SciTech Connect (OSTI)

In this study, the effect of thermodynamic environmental changes on hurricane intensity is extensively investigated with the National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory hurricane model for a suite of experiments with different initial upper-tropospheric temperature anomalies up to {+-}4 C and sea surface temperatures ranging from 26 to 31 C given the same relative humidity profile. The results indicate that stabilization in the environmental atmosphere and sea surface temperature (SST) increase cause opposing effects on hurricane intensity. The offsetting relationship between the effects of atmospheric stability increase (decrease) and SST increase (decrease) is monotonic and systematic in the parameter space. This implies that hurricane intensity increase due to a possible global warming associated with increased CO{sub 2} is considerably smaller than that expected from warming of the oceanic waters alone. The results also indicate that the intensity of stronger (weaker) hurricanes is more (less) sensitive to atmospheric stability and SST changes. The model-attained hurricane intensity is found to be well correlated with the maximum surface evaporation and the large-scale environmental convective available potential energy. The model-attained hurricane intensity if highly correlated with the energy available from wet-adiabatic ascent near the eyewall relative to a reference sounding in the undisturbed environment for all the experiments. Coupled hurricane-ocean experiments show that hurricane intensity becomes less sensitive to atmospheric stability and SST changes since the ocean coupling causes larger (smaller) intensity reduction for stronger (weaker) hurricanes. This implies less increase of hurricane intensity related to a possible global warming due to increased CO{sub 2}.

Shen, W.; Tuleya, R.E.; Ginis, I.

2000-01-01T23:59:59.000Z

223

INTERPRETING THE GLOBAL 21 cm SIGNAL FROM HIGH REDSHIFTS. I. MODEL-INDEPENDENT CONSTRAINTS  

SciTech Connect (OSTI)

The sky-averaged (global) 21 cm signal is a powerful probe of the intergalactic medium (IGM) prior to the completion of reionization. However, so far it has been unclear whether it will provide more than crude estimates of when the universe's first stars and black holes formed, even in the best case scenario in which the signal is accurately extracted from the foregrounds. In contrast to previous work, which has focused on predicting the 21 cm signatures of the first luminous objects, we investigate an arbitrary realization of the signal and attempt to translate its features to the physical properties of the IGM. Within a simplified global framework, the 21 cm signal yields quantitative constraints on the Ly? background intensity, net heat deposition, ionized fraction, and their time derivatives without invoking models for the astrophysical sources themselves. The 21 cm absorption signal is most easily interpreted, setting strong limits on the heating rate density of the universe with a measurement of its redshift alone, independent of the ionization history or details of the Ly? background evolution. In a companion paper, we extend these results, focusing on the confidence with which one can infer source emissivities from IGM properties.

Mirocha, Jordan; Harker, Geraint J. A.; Burns, Jack O., E-mail: jordan.mirocha@colorado.edu [Center for Astrophysics and Space Astronomy, University of Colorado, Campus Box 389, Boulder, CO 80309 (United States)

2013-11-10T23:59:59.000Z

224

The Future of Food Demand: Understanding Differences in Global Economic Models  

SciTech Connect (OSTI)

Understanding the capacity of agricultural systems to feed the world population under climate change requires a good prospective vision on the future development of food demand. This paper reviews modeling approaches from ten global economic models participating to the AgMIP project, in particular the demand function chosen and the set of parameters used. We compare food demand projections at the horizon 2050 for various regions and agricultural products under harmonized scenarios. Depending on models, we find for a business as usual scenario (SSP2) an increase in food demand of 59-98% by 2050, slightly higher than FAO projection (54%). The prospective for animal calories is particularly uncertain with a range of 61-144%, whereas FAO anticipates an increase by 76%. The projections reveal more sensitive to socio-economic assumptions than to climate change conditions or bioenergy development. When considering a higher population lower economic growth world (SSP3), consumption per capita drops by 9% for crops and 18% for livestock. Various assumptions on climate change in this exercise do not lead to world calorie losses greater than 6%. Divergences across models are however notable, due to differences in demand system, income elasticities specification, and response to price change in the baseline.

Valin, Hugo; Sands, Ronald; van der Mensbrugghe, Dominique; Nelson, Gerald; Ahammad, Helal; Blanc, Elodie; Bodirsky, Benjamin; Fujimori, Shinichiro; Hasegawa, Tomoko; Havlik, Petr; Heyhoe, Edwina; Kyle, G. Page; Mason d'Croz, Daniel; Paltsev, S.; Rolinski, Susanne; Tabeau, Andrzej; van Meijl, Hans; von Lampe, Martin; Willenbockel, Dirk

2014-01-01T23:59:59.000Z

225

COLLABORATIVE RESEARCH: CONTINUOUS DYNAMIC GRID ADAPTATION IN A GLOBAL ATMOSPHERIC MODEL: APPLICATION AND REFINEMENT  

SciTech Connect (OSTI)

This project had goals of advancing the performance capabilities of the numerical general circulation model EULAG and using it to produce a fully operational atmospheric global climate model (AGCM) that can employ either static or dynamic grid stretching for targeted phenomena. The resulting AGCM combined EULAG√ʬ?¬?s advanced dynamics core with the √ʬ?¬?physics√ʬ?¬Ě of the NCAR Community Atmospheric Model (CAM). Effort discussed below shows how we improved model performance and tested both EULAG and the coupled CAM-EULAG in several ways to demonstrate the grid stretching and ability to simulate very well a wide range of scales, that is, multi-scale capability. We leveraged our effort through interaction with an international EULAG community that has collectively developed new features and applications of EULAG, which we exploited for our own work summarized here. Overall, the work contributed to over 40 peer- reviewed publications and over 70 conference/workshop/seminar presentations, many of them invited.

Prusa, Joseph

2012-05-08T23:59:59.000Z

226

Open Source Software: Management, Diffusion and Competition  

E-Print Network [OSTI]

and competitive environment such as the ICT market. 1 Introduction OSS is an alternative model of software has introduced an innovative model of software development, based on self-organized communitiesOpen Source Software: Management, Diffusion and Competition Spyridoula Lakkaé National

Kouroupetroglou, Georgios

227

Software Quality Assurance Plan for GoldSim Models Supporting the Area 3 and Area 5 Radioactive Waste Management Sites Performance Assessment Program  

SciTech Connect (OSTI)

This Software Quality Assurance Plan (SQAP) applies to the development and maintenance of GoldSim models supporting the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) performance assessments (PAs) and composite analyses (CAs). Two PA models have been approved by the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO) as of November 2006 for the PA maintenance work undertaken by National Security Technologies, LLC (NSTec). NNSA/NSO asked NSTec to assume the custodianship of the models for future development and maintenance. The models were initially developed by Neptune and Company (N&C).

Gregory J. Shott, Vefa Yucel

2007-01-03T23:59:59.000Z

228

EMF24 Global Scenario Modeler Presentation Insights from the IMACLIM model  

E-Print Network [OSTI]

are approached √? Decreasing GDP losses per unit of tax increase (tax revenues returned Agricolture Energy Transport Dynamic sub-modules (reduced forms of BU models) Sta3c Hybrid matrixes in values, energy and ¬ę physical ¬Ľ content √? Secure

Boyer, Edmond

229

Unique Hardware and Software Data Acquisition and Processing...  

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

Hardware and Software Data Acquisition and Processing Solutions in a Small Engine Test Cell for Enhanced Kinetic Engine Modeling Accuracy Unique Hardware and Software Data...

230

A size-structured food-web model for the global ocean*  

E-Print Network [OSTI]

for Global Change Science (CGCS) and the Center for Energy and Environmental Policy Research (CEEPR of global environment and energy challenges, thereby contributing to informed debate about climate change reproduces global distributions of nutrients, biomass, and primary productivity, and captures the power

231

Consideration of the electron energy distribution function shape in a Ar and N{sub 2} global model  

SciTech Connect (OSTI)

This paper presents a method to compensate the effects of the electron energy distribution function (EEDF) shape on plasma characteristics when using global models to describe Ar and N{sub 2} inductively coupled discharges. A non-Maxwellian global model is developed for the pressure range 1-1000 mTorr by using an user-friendly Boltzmann equation solver to calculate the EEDF. The calculated EEDFs are compared with the measurements performed with a single Langmuir probe in the same conditions. We also compare the calculated results by using the Boltzmann equation solver with the results by assuming a Maxwellian EEDF and point out the influence of both methods on the contribution of the multi-step process on ionization. Finally, to take into account the shape of the EEDF in global models, abacuses are presented as a function of the absorbed power density and the pressure for typical Ar and N{sub 2} planar ICP discharges.

Kang, Namjun; Oh, Soo-Ghee [Division of Energy Systems Research, Ajou University, Suwon 443-749 (Korea, Republic of); Gaboriau, Freddy [Universite de Toulouse, UPS, INPT, LAPLACE (Laboratoire Plasma et Conversion d'Energie), 118 route de Narbonne, F-31062 Toulouse cedex 9 (France); CNRS, LAPLACE, F-31062 Toulouse (France)

2012-11-15T23:59:59.000Z

232

Time series modeling and large scale global solar radiation forecasting from geostationary satellites data  

E-Print Network [OSTI]

When a territory is poorly instrumented, geostationary satellites data can be useful to predict global solar radiation. In this paper, we use geostationary satellites data to generate 2-D time series of solar radiation for the next hour. The results presented in this paper relate to a particular territory, the Corsica Island, but as data used are available for the entire surface of the globe, our method can be easily exploited to another place. Indeed 2-D hourly time series are extracted from the HelioClim-3 surface solar irradiation database treated by the Heliosat-2 model. Each point of the map have been used as training data and inputs of artificial neural networks (ANN) and as inputs for two persistence models (scaled or not). Comparisons between these models and clear sky estimations were proceeded to evaluate the performances. We found a normalized root mean square error (nRMSE) close to 16.5% for the two best predictors (scaled persistence and ANN) equivalent to 35-45% related to ground measurements. F...

Voyant, Cyril; Muselli, Marc; Paoli, Christophe; Nivet, Marie Laure

2014-01-01T23:59:59.000Z

233

E-Print Network 3.0 - assist global training Sample Search Results  

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

Robert G.- Department of Mechanical Engineering, Ohio State University Collection: Engineering 3 IBM Software Services for WebSphere IBM Globalization Software Services...

234

FTT:Power : A global model of the power sector with induced technological change and natural resource depletion  

E-Print Network [OSTI]

This work introduces a model of Future Technology Transformations for the power sector (FTT:Power), a representation of global power systems based on market competition, induced technological change (ITC) and natural resource use and depletion. It is the first component of a family of sectoral bottom-up models of technology, designed for integration into the global macroeconometric model E3MG. ITC occurs as a result of technological learning produced by cumulative investment and leads to highly nonlinear, irreversible and path dependent technological transitions. The model uses a dynamic coupled set of logistic differential equations. As opposed to traditional bottom-up energy models based on systems optimisation, such differential equations offer an appropriate treatment of the times and structure of change involved in sectoral technology transformations, as well as a much reduced computational load. Resource use and depletion are represented by local cost-supply curves, which give rise to different regional...

Mercure, J -F

2012-01-01T23:59:59.000Z

235

Global distribution and climate forcing of marine organic aerosol: 1. Model improvements and evaluation  

SciTech Connect (OSTI)

Marine organic aerosol emissions have been implemented and evaluated within the National Center of Atmospheric Research (NCAR)'s Community Atmosphere Model (CAM5) with the Pacific Northwest National Laboratory's 7-mode Modal Aerosol Module (MAM-7). Emissions of marine primary organic aerosols (POA), phytoplanktonproduced isoprene- and monoterpenes-derived secondary organic aerosols (SOA) and methane sulfonate (MS{sup -}) are shown to affect surface concentrations of organic aerosols in remote marine regions. Global emissions of submicron marine POA is estimated to be 7.9 and 9.4 Tg yr{sup -1}, for the Gantt et al. (2011) and Vignati et al. (2010) emission parameterizations, respectively. Marine sources of SOA and particulate MS{sup -} (containing both sulfur and carbon atoms) contribute an additional 0.2 and 5.1 Tg yr{sup -1}, respectively. Widespread areas over productive waters of the Northern Atlantic, Northern Pacific, and the Southern Ocean show marine-source submicron organic aerosol surface concentrations of 100 ngm{sup -3}, with values up to 400 ngm{sup -3} over biologically productive areas. Comparison of long-term surface observations of water insoluble organic matter (WIOM) with POA concentrations from the two emission parameterizations shows that despite revealed discrepancies (often more than a factor of 2), both Gantt et al. (2011) and Vignati et al. (2010) formulations are able to capture the magnitude of marine organic aerosol concentrations, with the Gantt et al. (2011) parameterization attaining better seasonality. Model simulations show that the mixing state of the marine POA can impact the surface number concentration of cloud condensation nuclei (CCN). The largest increases (up to 20 %) in CCN (at a supersaturation (S) of 0.2 %) number concentration are obtained over biologically productive ocean waters when marine organic aerosol is assumed to be externally mixed with sea-salt. Assuming marine organics are internally-mixed with sea-salt provides diverse results with increases and decreases in the concentration of CCN over different parts of the ocean. The sign of the CCN change due to the addition of marine organics to seasalt aerosol is determined by the relative significance of the increase in mean modal diameter due to addition of mass, and the decrease in particle hygroscopicity due to compositional changes in marine aerosol. Based on emerging evidence for increased CCN concentration over biologically active surface ocean areas/periods, our study suggests that treatment of sea spray in global climate models (GCMs) as an internal mixture of marine organic aerosols and sea-salt will likely lead to an underestimation in CCN number concentration.

Meskhidze, N.; Xu, J.; Gantt, Brett; Zhang, Yang; Nenes, Athanasios; Ghan, Steven J.; Liu, Xiaohong; Easter, Richard C.; Zaveri, Rahul A.

2011-11-23T23:59:59.000Z

236

Intercomparison and Evaluation of Global Aerosol Microphysical Properties among AeroCom Models of a Range of Complexity  

SciTech Connect (OSTI)

Many of the next generation of global climate models will include aerosol schemes which explicitly simulate the microphysical processes that determine the particle size distribution. These models enable aerosol optical properties and cloud condensation nuclei (CCN) concentrations to be determined by fundamental aerosol processes, which should lead to a more physically based simulation of aerosol direct and indirect radiative forcings. This study examines the global variation in particle size distribution simulated by twelve global aerosol microphysics models to quantify model diversity and to identify any common biases against observations. Evaluation against size distribution measurements from a new European network of aerosol supersites shows that the mean model agrees quite well with the observations at many sites on the annual mean, but there are some seasonal biases common to many sites. In particular, at many of these European sites, the accumulation mode number concentration is biased low during winter and Aitken mode concentrations tend to be overestimated in winter and underestimated in summer. At high northern latitudes, the models strongly underpredict Aitken and accumulation particle concentrations compared to the measurements, consistent with previous studies that have highlighted the poor performance of global aerosol models in the Arctic. In the marine boundary layer, the models capture the observed meridional variation in the size distribution, which is dominated by the Aitken mode at high latitudes, with an increasing concentration of accumulation particles with decreasing latitude. Considering vertical profiles, the models reproduce the observed peak in total particle concentrations in the upper troposphere due to new particle formation, although modelled peak concentrations tend to be biased high over Europe. Overall, the results suggest that most global aerosol microphysics models simulate the global variation of the particle size distribution with a good degree of skill, but some models are in poor agreement with the observations. Further work is required to better constrain size-resolved primary and secondary particle number sources, and an improved understanding of nucleation and growth (e.g. the role of nitrate and secondary organics) will improve the fidelity of simulated particle size distributions.

Mann, G. W.; Carslaw, K. S.; Reddington, C. L.; Pringle, K. J.; Schulz, M.; Asmi, A.; Spracklen, D. V.; Ridley, D. A.; Woodhouse, M. T.; Lee, L. A.; Zhang, Kai; Ghan, Steven J.; Easter, Richard C.; Liu, Xiaohong; Stier, P.; Lee, Y. H.; Adams, P. J.; Tost, H.; Lelieveld, J.; Bauer, S.; Tsigaridis, Kostas; van Noije, T.; Strunk, A.; Vignati, E.; Bellouin, N.; Dalvi, M.; Johnson, C. E.; Bergman, T.; Kokkola, H.; Von Salzen, Knut; Yu, Fangqun; Luo, Gan; Petzold, A.; Heintzenberg, J.; Clarke, A. D.; Ogren, J. A.; Gras, J.; Baltensperger, Urs; Kaminski, U.; Jennings, S. G.; O'Dowd, C. D.; Harrison, R. M.; Beddows, D. C.; Kulmala, M.; Viisanen, Y.; Ulevicius, V.; Mihalopoulos, Nikos; Zdimal, V.; Fiebig, M.; Hansson, H. C.; Swietlicki, E.; Henzing, J. S.

2014-05-13T23:59:59.000Z

237

Modeling of shippingModeling of shipping NONOxx emissions in globalemissions in global GeertGeert VinkenVinken11,, FolkertFolkert BoersmaBoersma22, and Daniel J. Jacob, and Daniel J. Jacob33  

E-Print Network [OSTI]

) emissions 5-7% of global sulfur dioxide (SO2) emissions 3-4% of global carbon dioxide (CO2) emissions ShipModeling of shippingModeling of shipping NONOxx emissions in globalemissions in global CTMs 70% of the ship emissions occur within 400 km of land Only industrial sector not regulated under

Haak, Hein

238

Improving Healthcare Using Software | GE Global Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching.348 270 300 219Improvements to theSurface ofImproving

239

Crowdsourcing Software Announcement | GE Global Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3.Winter (Part 2)Crosscutting

240

Crowdsourcing Software Award | GE Global Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3.Winter (Part 2)CrosscuttingCrowdsourcing

Note: This page contains sample records for the topic "modeling software global" 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

Software Reliability Xiangyu Zhang  

E-Print Network [OSTI]

1 Software Reliability Xiangyu Zhang Pronounced as Shang You Zang CS590F Software Reliability Software Reliability Why Reliable Software is Important? Software bugs cost the U.S. economy about $59 in Spacecraft Accidents (http://sunnyday.mit.edu/papers/jsr.pdf) CS590F Software Reliability Why ? ­ FSE'06

Zhang, Xiangyu

242

Modeling the barotropic response of the global ocean to atmospheric wind and pressure forcing -comparisons with observations  

E-Print Network [OSTI]

-G. Model outputs are compared to in situ observations with tide gauge data (TG) and bottom pressure gauge data (BPR), and also with T/P altimetric cross over points (noted CO). Intercomparisons were performed/P and Jason altimeters deliver very accurate data sets (within 2 centimeter global error for T/P). How- ever

243

Global estimation of evapotranspiration using a leaf area index-based surface energy and water balance model  

E-Print Network [OSTI]

using Advanced Very High Res- olution Radiometer Lai data, Climate Research Unit climate dataGlobal estimation of evapotranspiration using a leaf area index-based surface energy and water-relative-humidity-based two-source (ARTS) E model that simulates the surface energy balance, soil water balance

Martin, Timothy

244

Enhancing the resolution of sea ice in long-term global ocean general circulation model (gcm) integrations  

E-Print Network [OSTI]

Open water in sea ice, such as leads and polynyas, plays a crucial role in determining the formation of deep- and bottom-water, as well as their long-term global properties and circulation. Ocean general circulation models (GCMs) designed...

Kim, Joong Tae

2007-09-17T23:59:59.000Z

245

Global modeling of cancer gene expression signa-Cancer leads to permanent changes in cell's physiological state and various  

E-Print Network [OSTI]

Global modeling of cancer gene expression signa- tures Cancer leads to permanent changes in cell cancer types. Less is known about the underlying biological processes, or relationships between different cancer types with respect to these changes. While each specific cancer type has a set of unique

Kaski, Samuel

246

The Role of Stratification-Dependent Mixing for the Stability of the Atlantic Overturning in a Global Climate Model*  

E-Print Network [OSTI]

in a Global Climate Model* BEN MARZEION Nansen Environmental and Remote Sensing Center, and Bjerknes Centre oceanic heat transport. Subsequently, and in opposition to results from previous studies, the overturning, as seen, for example, in temperature reconstructions from Greenland ice cores, are often ex- plained

Marzeion, Ben

247

COLLABORATIVE RESEARCH: CONTINUOUS DYNAMIC GRID ADAPTATION IN A GLOBAL ATMOSPHERIC MODEL: APPLICATION AND REFINEMENT  

SciTech Connect (OSTI)

This project had goals of advancing the performance capabilities of the numerical general circulation model EULAG and using it to produce a fully operational atmospheric global climate model (AGCM) that can employ either static or dynamic grid stretching for targeted phenomena. The resulting AGCM combined EULAG's advanced dynamics core with the "physics" of the NCAR Community Atmospheric Model (CAM). Effort discussed below shows how we improved model performance and tested both EULAG and the coupled CAM-EULAG in several ways to demonstrate the grid stretching and ability to simulate very well a wide range of scales, that is, multi-scale capability. We leveraged our effort through interaction with an international EULAG community that has collectively developed new features and applications of EULAG, which we exploited for our own work summarized here. Overall, the work contributed to over 40 peer-reviewed publications and over 70 conference/workshop/seminar presentations, many of them invited. 3a. EULAG Advances EULAG is a non-hydrostatic, parallel computational model for all-scale geophysical flows. EULAG's name derives from its two computational options: EULerian (flux form) or semi-LAGrangian (advective form). The model combines nonoscillatory forward-in-time (NFT) numerical algorithms with a robust elliptic Krylov solver. A signature feature of EULAG is that it is formulated in generalized time-dependent curvilinear coordinates. In particular, this enables grid adaptivity. In total, these features give EULAG novel advantages over many existing dynamical cores. For EULAG itself, numerical advances included refining boundary conditions and filters for optimizing model performance in polar regions. We also added flexibility to the model's underlying formulation, allowing it to work with the pseudo-compressible equation set of Durran in addition to EULAG's standard anelastic formulation. Work in collaboration with others also extended the demonstrated range of validity of soundproof models, showing that they are more broadly applicable than some had previously thought. Substantial testing of EULAG included application and extension of the Jablonowski-Williamson baroclinic wave test - an archetype of planetary weather - and further analysis of multi-scale interactions arising from collapse of temperature fronts in both the baroclinic wave test and simulations of the Held-Suarez idealized climate. These analyses revealed properties of atmospheric gravity waves not seen in previous work and further demonstrated the ability of EULAG to simulate realistic behavior over several orders of magnitude of length scales. Additional collaborative work enhanced capability for modeling atmospheric flows with adaptive moving meshes and demonstrated the ability of EULAG to move into petascale computing. 3b. CAM-EULAG Advances We have developed CAM-EULAG in collaboration with former project postdoc, now University of Cape Town Assistant Professor, Babatunde Abiodun. Initial study documented good model performance in aqua-planet simulations. In particular, we showed that the grid adaptivity (stretching) implemented in CAM-EULAG allows higher resolution in selected regions without causing anomalous behavior such as spurious wave reflection. We then used the stretched-grid version to analyze simulated extreme precipitation events in West Africa, comparing the precipitation and event environment with observed behavior. The model simulates fairly well the spatial scale and the interannual and intraseasonal variability of the extreme events, although its extreme precipitation intensity is weaker than observed. In addition, both observations and the simulations show possible forcing of extreme events by African easterly waves. 3c. Other Contributions Through our collaborations, we have made contributions to a wide range of outcomes. For research focused on terrestrial behavior, these have included (1) upwind schemes for gas dynamics, (2) a nonlinear perspective on the dynamics of the Madden-Julian Oscillation, (3) numerical realism of thermal co

Gutowski, William J.; Prusa, Joseph M.; Smolarkiewicz, Piotr K.

2012-05-08T23:59:59.000Z

248

Software Architecture and Software Configuration Bernhard Westfechtel  

E-Print Network [OSTI]

the software life cycle. In addition, it supports system building (creation of derived objects from support for the management of evolving software objects throughout the whole life cycle. Several problems architectures play a central role in the development and maintenance of a software system. A software

Westfechtel, Bernhard

249

Understanding the drivers affecting land use change in Ecuador: an application of the Land Change Modeler software  

E-Print Network [OSTI]

in forest cover, satellite images (years 1996 and 2001) were used to produce land cover maps which were then used with the software to estimate probabilities of pixels changing from forests to other land use types. Various drivers of deforestation input...

Krishna Rajan, Dhruva

2010-01-01T23:59:59.000Z

250

310 IEEE TRANSACTIONS ON RELIABILITY, VOL. 50, NO. 3, SEPTEMBER 2001 Framework for Modeling Software Reliability, Using  

E-Print Network [OSTI]

are used. From practical field studies, it is likely that we can estimate the testing efforts consumption, which can be obtained from historical records of previous releases or other similar software projects Project CUHK4432/99E. Responsible Editor: K. Kanoun S.-Y. Kuo and C.-Y. Huang are with the Electrical

Lyu, Michael R.

251

Modeling the Oil Transition: A Summary of the Proceedings of the DOE/EPA Workshop on the Economic and Environmental Implications of Global Energy Transitions  

SciTech Connect (OSTI)

The global energy system faces sweeping changes in the next few decades, with potentially critical implications for the global economy and the global environment. It is important that global institutions have the tools necessary to predict, analyze and plan for such massive change. This report summarizes the proceedings of an international workshop concerning methods of forecasting, analyzing, and planning for global energy transitions and their economic and environmental consequences. A specific case, it focused on the transition from conventional to unconventional oil and other energy sources likely to result from a peak in non-OPEC and/or global production of conventional oil. Leading energy models from around the world in government, academia and the private sector met, reviewed the state-of-the-art of global energy modeling and evaluated its ability to analyze and predict large-scale energy transitions.

Greene, David L [ORNL

2007-02-01T23:59:59.000Z

252

Planetary boundary layer depth in Global climate models induced biases in surface climatology  

E-Print Network [OSTI]

The Earth has warmed in the last century with the most rapid warming occurring near the surface in the arctic. This enhanced surface warming in the Arctic is partly because the extra heat is trapped in a thin layer of air near the surface due to the persistent stable-stratification found in this region. The warming of the surface air due to the extra heat depends upon the amount of turbulent mixing in the atmosphere, which is described by the depth of the atmospheric boundary layer (ABL). In this way the depth of the ABL determines the effective response of the surface air temperature to perturbations in the climate forcing. The ABL depth can vary from tens of meters to a few kilometers which presents a challenge for global climate models which cannot resolve the shallower layers. Here we show that the uncertainties in the depth of the ABL can explain up to 60 percent of the difference between the simulated and observed surface air temperature trends and 50 percent of the difference in temperature variability...

Davy, Richard

2014-01-01T23:59:59.000Z

253

JUNE 2002 311S H M A K I N E T A L . Global Modeling of Land Water and Energy Balances. Part III  

E-Print Network [OSTI]

JUNE 2002 311S H M A K I N E T A L . Global Modeling of Land Water and Energy Balances. Part III of basin discharge. 1. Introduction Global models of land water and energy balance can provide information 44 large river basins for which relatively accurate time series of monthly precipitation (a primary

254

CSP 587: Software Quality Management S. Kan, Software Quality engineering, Addison-Wesley.  

E-Print Network [OSTI]

CSP 587: Software Quality Management Texts S. Kan, Software Quality engineering, Addison hours · Quality Appraisal Programs 5 hours SEI's Capability Maturity Model ISO 9000 Total 45 hours CSP

Heller, Barbara

255

Global Warming, endogenous risk and irreversibility  

E-Print Network [OSTI]

The economics of global warming, Institute for InternationalEconomic Models of Global Warming, Cambridge, Mass. MITstochastic losses from global warming, Risk Analysis 16(2):

Fisher, Anthony C.; Narain, Urvashi

2002-01-01T23:59:59.000Z

256

Global Statistics  

E-Print Network [OSTI]

1996). Globalization in Question: International Economy andGlobalization; Justice; Poverty; Underground Economy; United

Crow, Ben D

2006-01-01T23:59:59.000Z

257

Development of an atmospheric aerosol model for studies of global budgets and effects of airborne particulate material  

SciTech Connect (OSTI)

A microphysics-removal atmospheric aerosol model (AAM) is developed for use in general circulation models (GCMs) to study global budgets and effects of particulate material. In this model the particle population is composed of a set of log-normal modes whose time evolution due to microphysical processes is described via prognostic equations for an appropriate number of moments of the particle-size distribution. Detailed parameterizations of particle coagulation, sedimentation, dry deposition, and wet removal are developed and implemented into the AAM. The AAM is incorporated into a GCM and is applied to two types of studies: (1) characteristics of the particle wet and dry removal processes, and (2) climatic impact of massive particulate injections following a global nuclear war, with emphasis on the sensitivity of the simulated effects to the inclusion of particle microphysics. Results are discussed.

Giorgi, F.

1986-01-01T23:59:59.000Z

258

NIMASTEP: a software to modelize, study and analyze the dynamics of various small objects orbiting specific bodies  

E-Print Network [OSTI]

NIMASTEP is a dedicated numerical software developed by us, which allows one to integrate the osculating motion (using cartesian coordinates) in a Newtonian approach of an object considered as a point-mass orbiting a homogeneous central body that rotates with a constant rate around its axis of smallest inertia. The code can be applied to objects such as particles, artificial or natural satellites or space debris. The central body can be either any terrestrial planet of the solar system, any dwarf-planet, or even an asteroid. In addition, very many perturbations can be taken into account, such as the combined third-body attraction of the Sun, the Moon, or the planets, the direct solar radiation pressure (with the central body shadow), the non-homogeneous gravitational field caused by the non-sphericity of the central body, and even some thrust forces. The simulations were performed using different integration algorithms. Two additional tools were integrated in the software package; the indicator of chaos MEGNO and the frequency analysis NAFF. NIMASTEP is designed in a flexible modular style and allows one to (de)select very many options without compromising the performance. It also allows one to easily add other possibilities of use. The code has been validated through several tests such as comparisons with numerical integrations made with other softwares or with semi-analytical and analytical studies. The various possibilities of NIMASTEP are described and explained and some tests of astrophysical interest are presented. At present, the code is proprietary but it will be released for use by the community in the near future. Information for contacting its authors and (in the near future) for obtaining the software are available on the web site http://www.fundp.ac.be/en/research/projects/page_view/10278201/

N. Delsate; A. CompŤre

2012-04-06T23:59:59.000Z

259

Climate change and agriculture : global and regional effects using an economic model of international trade  

E-Print Network [OSTI]

Empirical estimates of the economic welfare implications of the impact of climate change on global agricultural production are made. Agricultural yield changes resulting from climate scenarios associated with a doubling ...

Reilly, John M.

1993-01-01T23:59:59.000Z

260

Global precipitation retrieval algorithm trained for SSMIS using a numerical weather prediction model: Design and evaluation  

E-Print Network [OSTI]

This paper presents and evaluates a global precipitation retrieval algorithm for the Special Sensor Microwave Imager/Sounder (SSMIS). It is based on those developed earlier for the Advanced Microwave Sounding Unit (AMSU) ...

Surussavadee, Chinnawat

Note: This page contains sample records for the topic "modeling software global" 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

Moral purpose, economic incentive and global trade : why new business models are needed  

E-Print Network [OSTI]

Globalization has occurred in various forms over the past century, yet only recently has it become daily news. This evolving process has created numerous underlying tensions that are not well understood. While western ...

Samel, Hiram M

2006-01-01T23:59:59.000Z

262

Using a total landed cost model to foster global logistics strategy in the electronics industry  

E-Print Network [OSTI]

Global operation strategies have been widely used in the last several decades as many companies and industries have taken advantage of lower production costs. However, in choosing a location, companies often only consider ...

Jearasatit, Apichart

2010-01-01T23:59:59.000Z

263

A polar stratospheric cloud parameterization for the global modeling initiative three-dimensional model and its response to stratospheric aircraft  

SciTech Connect (OSTI)

We describe a new parameterization of polar stratospheric clouds (PSCs) which was written for and incorporated into the three-dimensional (3-D) chemistry and transport model (CTM) developed for NASA's Atmospheric Effects of Aviation Project (AEAP) by the Global Modeling Initiative (GMI). The parameterization was designed to respond to changes in NO{sub y} and H{sub 2}O produced by high-speed civilian transport (HSCT) emissions. The parameterization predicts surface area densities (SADs) of both Type 1 and Type 2 PSCs for use in heterogeneous chemistry calculations. Type 1 PSCs are assumed to have a supercooled ternary sulfate (STS) composition, and Type 2 PSCs are treated as water ice with a coexisting nitric acid trihydrate (NAT) phase. Sedimentation is treated by assuming that the PSC particles obey lognormal size distributions, resulting in a realistic mass flux of condensed phase H{sub 2}O and HNO{sub 3}. We examine a simulation of the Southern Hemisphere high-latitude lower stratosphere winter and spring seasons driven by temperature and wind fields from a modified version of the National Center for Atmospheric Research (NCAR) Middle Atmosphere Community Climate Model Version 2 (MACCM2). Predicted PSC SADs and median radii for both Type 1 and Type 2 PSCs are consistent with observations. Gas phase HNO{sub 3} and H{sub 2}O concentrations in the high-latitude lower stratosphere qualitatively agree with Cryogenic Limb Array Etalon Spectrometer (CLAES) HNO{sub 3} and Microwave Limb Sounder (MLS) H{sub 2}O observations. The residual denitrification and dehydration of the model polar vortex after polar winter compares well with atmospheric trace molecule spectroscopy (ATMOS) observations taken during November 1994. When the NO{sub x} and H{sub 2}O emissions of a standard 500-aircraft HSCT fleet with a NO{sub x} emission index of 5 are added, NO{sub x} and H{sub 2}O concentrations in the Southern Hemisphere polar vortex before winter increase by up to 3%. This results in earlier onset of PSC formation, denitrification, and dehydration. Active Cl{sub y} increases and produces small ({approx}1%) decreases in lower stratospheric vortex O{sub 3} concentrations during the spring relative to the HSCT-free run. (c) 2000 American Geophysical Union.

Considine, D. B. [Earth System Science Interdisciplinary Center and Department of Meteorology, University of Maryland, College Park (United States)] [Earth System Science Interdisciplinary Center and Department of Meteorology, University of Maryland, College Park (United States); Douglass, A. R. [NASA Goddard Space Flight Center, Greenbelt, Maryland (United States)] [NASA Goddard Space Flight Center, Greenbelt, Maryland (United States); Connell, P. S. [Lawrence Livermore National Laboratory, Livermore, California (United States)] [Lawrence Livermore National Laboratory, Livermore, California (United States); Kinnison, D. E. [Lawrence Livermore National Laboratory, Livermore, California (United States)] [Lawrence Livermore National Laboratory, Livermore, California (United States); Rotman, D. A. [Lawrence Livermore National Laboratory, Livermore, California (United States)] [Lawrence Livermore National Laboratory, Livermore, California (United States)

2000-02-16T23:59:59.000Z

264

Understanding and Improving Software Productivity  

E-Print Network [OSTI]

Understanding and Improving Software Productivity Walt Scacchi Institute for Software Research;2 Introduction ∑ What affects software productivity? ≠ Software productivity has been one of the most studied aspects of software engineering ≠ Goal: review sample of empirical studies of software productivity

Scacchi, Walt

265

A user's guide to the GoldSim/BLT-MS integrated software package:a low-level radioactive waste disposal performance assessment model.  

SciTech Connect (OSTI)

Sandia National Laboratories (Sandia), a U.S. Department of Energy National Laboratory, has over 30 years experience in the assessment of radioactive waste disposal and at the time of this publication is providing assistance internationally in a number of areas relevant to the safety assessment of radioactive waste disposal systems. In countries with small radioactive waste programs, international technology transfer program efforts are often hampered by small budgets, schedule constraints, and a lack of experienced personnel. In an effort to surmount these difficulties, Sandia has developed a system that utilizes a combination of commercially available software codes and existing legacy codes for probabilistic safety assessment modeling that facilitates the technology transfer and maximizes limited available funding. Numerous codes developed and endorsed by the United States Nuclear Regulatory Commission (NRC) and codes developed and maintained by United States Department of Energy are generally available to foreign countries after addressing import/export control and copyright requirements. From a programmatic view, it is easier to utilize existing codes than to develop new codes. From an economic perspective, it is not possible for most countries with small radioactive waste disposal programs to maintain complex software, which meets the rigors of both domestic regulatory requirements and international peer review. Therefore, revitalization of deterministic legacy codes, as well as an adaptation of contemporary deterministic codes, provides a credible and solid computational platform for constructing probabilistic safety assessment models. This document is a reference users guide for the GoldSim/BLT-MS integrated modeling software package developed as part of a cooperative technology transfer project between Sandia National Laboratories and the Institute of Nuclear Energy Research (INER) in Taiwan for the preliminary assessment of several candidate low-level waste repository sites. Breach, Leach, and Transport-Multiple Species (BLT-MS) is a U.S. NRC sponsored code which simulates release and transport of contaminants from a subsurface low-level waste disposal facility. GoldSim is commercially available probabilistic software package that has radionuclide transport capabilities. The following report guides a user through the steps necessary to use the integrated model and presents a successful application of the paradigm of renewing legacy codes for contemporary application.

Knowlton, Robert G.; Arnold, Bill Walter; Mattie, Patrick D.

2007-03-01T23:59:59.000Z

266

Designing security into software  

E-Print Network [OSTI]

When people talk about software security, they usually refer to security applications such as antivirus software, firewalls and intrusion detection systems. There is little emphasis on the security in the software itself. ...

Zhang, Chang Tony

2006-01-01T23:59:59.000Z

267

Designing supportability into software  

E-Print Network [OSTI]

Background: Despite the identification of a "software crisis" in the 1960s, large software projects are full of defects even today [19]. These defects cause the software to behave unexpectedly. The cause generally is ...

Shirolkar, Prashant A., 1973-

2004-01-01T23:59:59.000Z

268

Simulated diurnal rainfall physics in a multi-scale global climate model with embedded explicit convection  

E-Print Network [OSTI]

their Community Earth System Model (Richard Neale, personaldevelopment of Earth system models capable of reproducing

Pritchard, Michael Stephen

2011-01-01T23:59:59.000Z

269

Global Statistics  

E-Print Network [OSTI]

of Globalization: Statistics Weiss, L. (1997). "of Globalization: Statistics Milanovic, B. (1999). Truethe focus of global statistics, particularly in relation to

Crow, Ben D

2006-01-01T23:59:59.000Z

270

Global data set of biogenic VOC emissions calculated by the MEGAN model over the last 30 years  

SciTech Connect (OSTI)

The Model of Emissions of Gases and Aerosols from Nature (MEGANv2.1) together with the Modern-Era Retrospective Analysis for Research and Applications (MERRA) meteorological fields were used to create a global emission dataset of biogenic VOCs available on a monthly basis for the time period of 1980 - 2010. This dataset is called MEGAN-MACC. The model estimated mean annual total BVOC emission of 760 Tg(C) yr1 consisting of isoprene (70%), monoterpenes (11%), methanol (6%), acetone (3%), sesquiterpenes (2.5%) and other BVOC species each contributing less than 2 %. Several sensitivity model runs were performed to study the impact of different model input and model settings on isoprene estimates and resulted in differences of * 17% of the reference isoprene total. A greater impact was observed for sensitivity run applying parameterization of soil moisture deficit that led to a 50% reduction of isoprene emissions on a global scale, most significantly in specific regions of Africa, South America and Australia. MEGAN-MACC estimates are comparable to results of previous studies. More detailed comparison with other isoprene in ventories indicated significant spatial and temporal differences between the datasets especially for Australia, Southeast Asia and South America. MEGAN-MACC estimates of isoprene and*-pinene showed a reasonable agreement with surface flux measurements in the Amazon andthe model was able to capture the seasonal variation of emissions in this region.

Sindelarova, K.; Granier, Claire; Bouarar, I.; Guenther, Alex B.; Tilmes, S.; Stavrakou, T.; Muller, J. F.; Kuhn, U.; Stefani, P.; Knorr, W.

2014-09-09T23:59:59.000Z

271

Managing the software design documents with XML Junichi Suzuki  

E-Print Network [OSTI]

Managing the software design documents with XML Junichi Suzuki Department of Computer Science, and addresses how we can manage the software design documents for the distributed software development. Introduction It is hard to share and manage the software design models and their documents within a distributed

Suzuki, Jun

272

The Tropical Atmospheric El Nio Signal in Satellite Precipitation Data and a Global Climate Model  

E-Print Network [OSTI]

) ABSTRACT Aspects of the tropical atmospheric response to El Ni√Īo related to the global energy and water and the Advanced Micro- wave Scanning Radiometer-E and simulations from the Goddard Institute for Space Studies are highly correlated, but anomalies in stratiform¬≠convective rainfall partitioning in the two datasets

273

Development of Multilingual Acoustic Models in the GlobalPhone Project  

E-Print Network [OSTI]

, namely Ara≠ bic, Chinese (Mandarin and Wu), Croatian, English, French, German, Japanese, Korean] #words vocabulary Arabic 100 u.w. 20 u.w. u.w. Croatian (+30) 83 4019 14 106K 20K Japanese 121 9785 25 1. The GlobalPhone Database (u.w.=under way) For training and testing we use Croatian, Japanese

Schultz, Tanja

274

Multi-century Changes to Global Climate and Carbon Cycle: Results from a Coupled Climate and Carbon Cycle Model  

SciTech Connect (OSTI)

In this paper, we use a coupled climate and carbon cycle model to investigate the global climate and carbon cycle changes out to year 2300 that would occur if CO{sub 2} emissions from all the currently estimated fossil fuel resources were released to the atmosphere. By year 2300, the global climate warms by about 8 K and atmospheric CO{sub 2} reaches 1423 ppmv. The warming is higher than anticipated because the sensitivity to radiative forcing increases as the simulation progresses. In our simulation, the rate of emissions peak at over 30 PgC yr{sup -1} early in the 22nd century. Even at year 2300, nearly 50% of cumulative emissions remain in the atmosphere. In our simulations both soils and living biomass are net carbon sinks throughout the simulation. Despite having relatively low climate sensitivity and strong carbon uptake by the land biosphere, our model projections suggest severe long-term consequences for global climate if all the fossil-fuel carbon is ultimately released to the atmosphere.

Bala, G; Caldeira, K; Mirin, A; Wickett, M; Delire, C

2005-02-17T23:59:59.000Z

275

Software Reliability Theory Michael Rung-Tsong Lyu, The Chinese University of Hong Kong  

E-Print Network [OSTI]

Software Reliability Theory Michael Rung-Tsong Lyu, The Chinese University of Hong Kong; exponential order statistics; modelingm markov software reliability models; comparisons; emerging techniques Abstract Software reliability modeling has, surprisingly to many, been around since the early 1970s

Lyu, Michael R.

276

Moisture Flux Convergence in Regional and Global Climate Models: Implications for Droughts in the Southwestern United States Under Climate Change  

SciTech Connect (OSTI)

The water cycle of the southwestern United States (SW) is dominated by winter storms that maintain a positive annual net precipitation. Analysis of the control and future climate from four pairs of regional and global climate models (RCMs and GCMs) shows that the RCMs simulate a higher fraction of transient eddy moisture fluxes because the hydrodynamic instabilities associated with flow over complex terrain are better resolved. Under global warming, this enables the RCMs to capture the response of transient eddies to increased atmospheric stability that allows more moisture to converge on the windward side of the mountains by blocking. As a result, RCMs simulate enhanced transient eddy moisture convergence in the SW compared to GCMs, although both robustly simulate drying due to enhanced moisture divergence by the divergent mean flow in a warmer climate. This enhanced convergence leads to reduced susceptibility to hydrological change in the RCMs compared to GCMs.

Gao, Yanhong; Leung, Lai-Yung R.; Salathe, E.; Dominguez, Francina; Nijssen, Bart; Lettenmaier, D. P.

2012-05-10T23:59:59.000Z

277

Land-use change trajectories up to 2050: insights from a global agro-economic model comparison  

SciTech Connect (OSTI)

Changes in agricultural land use have important implications for environmental services. Previous studies of agricultural land-use futures have been published indicating large uncertainty due to different model assumptions and methodologies. In this article we present a first comprehensive comparison of global agro-economic models that have harmonized drivers of population, GDP, and biophysical yields. The comparison allows us to ask two research questions: (1) How much cropland will be used under different socioeconomic and climate change scenarios? (2) How can differences in model results be explained? The comparison includes four partial and six general equilibrium models that differ in how they model land supply and amount of potentially available land. We analyze results of two different socioeconomic scenarios and three climate scenarios (one with constant climate). Most models (7 out of 10) project an increase of cropland of 10Ė25% by 2050 compared to 2005 (under constant climate), but one model projects a decrease. Pasture land expands in some models, which increase the treat on natural vegetation further. Across all models most of the cropland expansion takes place in South America and sub-Saharan Africa. In general, the strongest differences in model results are related to differences in the costs of land expansion, the endogenous productivity responses, and the assumptions about potential cropland.

Schmitz, Christoph; van Meijl, Hans; Kyle, G. Page; Nelson, Gerald C.; Fujimori, Shinichiro; Gurgel, Angelo; Havlik, Petr; Heyhoe, Edwina; Mason d'Croz, Daniel; Popp, Alexander; Sands, Ronald; Tabeau, Andrzej; van der Mensbrugghe, Dominique; von Lampe, Martin; Wise, Marshall A.; Blanc, Elodie; Hasegawa, Tomoko; Kavallari, Aikaterini; Valin, Hugo

2014-01-01T23:59:59.000Z

278

SOFTWARE ENGINEERING COMPUTER SCIENCE  

E-Print Network [OSTI]

SOFTWARE ENGINEERING COMPUTER SCIENCE ... What's the Difference? goeng1@mcmaster.ca www). Software Engineering covers the course content listed under Computer Science, with some additions. Software). Software Engineering students will graduate with a Bachelor of Engineering (B.Eng). Computer Science

Bone, Gary

279

Software distribution using xnetlib  

SciTech Connect (OSTI)

Xnetlib is a new tool for software distribution. Whereas its predecessor netlib uses e-mail as the user interface to its large collection of public-domain mathematical software, xnetlib uses an X Window interface and socket-based communication. Xnetlib makes it easy to search through a large distributed collection of software and to retrieve requested software in seconds.

Dongarra, J.J. [Univ. of Tennessee, Knoxville, TN (US). Dept. of Computer Science]|[Oak Ridge National Lab., TN (US); Rowan, T.H. [Oak Ridge National Lab., TN (US); Wade, R.C. [Univ. of Tennessee, Knoxville, TN (US). Dept. of Computer Science

1993-06-01T23:59:59.000Z

280

Development of an atmospheric aerosol model for studies of global budgets and effects of airborne particulate material  

SciTech Connect (OSTI)

A microphysics-removal Atmospheric Aerosol Model (AAM) is developed for use in General Circulation Models (GCM) to study global budgets and effects of particulate material. In this model the particle population is assumed to be composed of a set of log-normal modes whose time evolution due to microphysical processes is described via prognostic equations for an appropriate number of moments of the particle size distribution. This newly devised technique, by making use of a small number of prognostic equations for the aerosol variables and utilizing optimized numerical procedures, renders the model computationally efficient, hence particularly suitable for use in complex 3D GCMs. Detailed parameterizations of particle coagulation, sedimentation, dry deposition, and wet removal are incorporated into the AAM.

Giorgi, F.

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling software global" 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

Scientific Final Report: COLLABORATIVE RESEARCH: CONTINUOUS DYNAMIC GRID ADAPTATION IN A GLOBAL ATMOSPHERIC MODEL: APPLICATION AND REFINEMENT  

SciTech Connect (OSTI)

This project had goals of advancing the performance capabilities of the numerical general circulation model EULAG and using it to produce a fully operational atmospheric global climate model (AGCM) that can employ either static or dynamic grid stretching for targeted phenomena. The resulting AGCM combined EULAG's advanced dynamics core with the 'physics' of the NCAR Community Atmospheric Model (CAM). Effort discussed below shows how we improved model performance and tested both EULAG and the coupled CAM-EULAG in several ways to demonstrate the grid stretching and ability to simulate very well a wide range of scales, that is, multi-scale capability. We leveraged our effort through interaction with an international EULAG community that has collectively developed new features and applications of EULAG, which we exploited for our own work summarized here. Overall, the work contributed to over 40 peer-reviewed publications and over 70 conference/workshop/seminar presentations, many of them invited.

William J. Gutowski; Joseph M. Prusa, Piotr K. Smolarkiewicz

2012-04-09T23:59:59.000Z

282

Statistical Global Modeling of Beta-Decay Halflives Systematics Using Multilayer Feedforward Neural Networks and Support Vector Machines  

E-Print Network [OSTI]

In this work, the beta-decay halflives problem is dealt as a nonlinear optimization problem, which is resolved in the statistical framework of Machine Learning (LM). Continuing past similar approaches, we have constructed sophisticated Artificial Neural Networks (ANNs) and Support Vector Regression Machines (SVMs) for each class with even-odd character in Z and N to global model the systematics of nuclei that decay 100% by the beta-minus-mode in their ground states. The arising large-scale lifetime calculations generated by both types of machines are discussed and compared with each other, with the available experimental data, with previous results obtained with neural networks, as well as with estimates coming from traditional global nuclear models. Particular attention is paid on the estimates for exotic and halo nuclei and we focus to those nuclides that are involved in the r-process nucleosynthesis. It is found that statistical models based on LM can at least match or even surpass the predictive performance of the best conventional models of beta-decay systematics and can complement the latter.

N. J. Costiris; E. Mavrommatis; K. A. Gernoth; J. W. Clark; H. Li

2008-09-02T23:59:59.000Z

283

Proc. of 10th International Conf. on Software Engineering and Knowledge Engineering, June 1998, San Francisco, California Formalizing and Integrating the Functional Model into  

E-Print Network [OSTI]

, Michigan 48824 fwangyi,chengbg@cps.msu.edu Abstract The data flow diagram (DFD), originally introduced demonstrated its usefulness in the software engineering discipline, DFDs seem to be essential to software de

Cheng, Betty H.C.

284

An examination of urban heat island characteristics in a global climate model  

E-Print Network [OSTI]

and urban properties devel- oped by Jackson et al. (2010). Urban extent, defined for four classes [tall building district (TBD), and high, medium and low density (HD, MD, LD)], was derived from LandScan 2004 [Oak Ridge National Laboratories (ORNL) 2005, Land...Scan? Global Population Database, Oak Ridge, TN (http://www.ornl.gov/landscan/)], a pop- ulation density dataset derived from census data, night- time lights satellite observations, road proximity and slope (Dobson et al., 2000). The urban extent data...

Oleson, Keith W.; Bonan, Gordon B.; Feddema, Johannes J.; Jackson, Trisha L.

2010-07-27T23:59:59.000Z

285

Draft only. This version: July 2011 GPE-VN: A general equilibrium model for the study of globalization,  

E-Print Network [OSTI]

of economies with global markets, for growth, economic welfare, income distribution and the environment, but the implications of integration with the global economy for income distribution, poverty change of globalization, poverty and the environment in Vietnam1 Ian Coxhead, University

Coxhead, Ian

286

U. S. DOE petroleum software  

SciTech Connect (OSTI)

Each year, the U.S. DOE sponsors a variety of petroleum-related research projects. Some of the past projects have resulted in development of software that is available free from the DOE's Bartlesville Project Office. This article gives an overview of the following DOE software: Black Oil Applied Simulation Tool I (BOAST II); EOR Predictive Models: CO{sub 2} Miscible Flood, Chemical Flood, Polymer Flood, In-Situ Combustion Steamflood; Horizontal/Slanted Well Model; and Miscible Applied Simulation Techniques (MASTER).

Schneider, C.E. (Conoco Inc. (US))

1991-07-01T23:59:59.000Z

287

Effect of Terrestrial and Marine Organic Aerosol on Regional and Global Climate: Model Development, Application, and Verification with Satellite Data  

SciTech Connect (OSTI)

In this DOE project the improvements to parameterization of marine primary organic matter (POM) emissions, hygroscopic properties of marine POM, marine isoprene derived secondary organic aerosol (SOA) emissions, surfactant effects, new cloud droplet activation parameterization have been implemented into Community Atmosphere Model (CAM 5.0), with a seven mode aerosol module from the Pacific Northwest National Laboratory (PNNL)√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?s Modal Aerosol Model (MAM7). The effects of marine aerosols derived from sea spray and ocean emitted biogenic volatile organic compounds (BVOCs) on microphysical properties of clouds were explored by conducting 10 year CAM5.0-MAM7 model simulations at a grid resolution 1.9√?¬?√?¬?√?¬?√?¬į√?¬?√?¬?√?¬?√?¬?2.5√?¬?√?¬?√?¬?√?¬į with 30 vertical layers. Model-predicted relationship between ocean physical and biological systems and the abundance of CCN in remote marine atmosphere was compared to data from the A-Train satellites (MODIS, CALIPSO, AMSR-E). Model simulations show that on average, primary and secondary organic aerosol emissions from the ocean can yield up to 20% increase in Cloud Condensation Nuclei (CCN) at 0.2% Supersaturation, and up to 5% increases in droplet number concentration of global maritime shallow clouds. Marine organics were treated as internally or externally mixed with sea salt. Changes associated with cloud properties reduced (absolute value) the model-predicted short wave cloud forcing from -1.35 Wm-2 to -0.25 Wm-2. By using different emission scenarios, and droplet activation parameterizations, this study suggests that addition of marine primary aerosols and biologically generated reactive gases makes an important difference in radiative forcing assessments. All baseline and sensitivity simulations for 2001 and 2050 using global-through-urban WRF/Chem (GU-WRF) were completed. The main objective of these simulations was to evaluate the capability of GU-WRF for an accurate representation of the global atmosphere by exploring the most accurate configuration of physics options in GWRF for global scale modeling in 2001 at a horizontal grid resolution of 1√?¬?√?¬?√?¬?√?¬į x 1√?¬?√?¬?√?¬?√?¬į. GU-WRF model output was evaluated using observational datasets from a variety of sources including surface based observations (NCDC and BSRN), model reanalysis (NCEP/ NCAR Reanalysis and CMAP), and remotely-sensed data (TRMM) to evaluate the ability of GU-WRF to simulate atmospheric variables at the surface as well as aloft. Explicit treatment of nanoparticles produced from new particle formation in GU-WRF/Chem-MADRID was achieved by expanding particle size sections from 8 to 12 to cover particles with the size range of 1.16 nm to 11.6 √?¬?√?¬?√?¬?√?¬Ķm. Simulations with two different nucleation parameterizations were conducted for August 2002 over a global domain at a 4√?¬?√?¬?√?¬?√?¬ļ by 5√?¬?√?¬?√?¬?√?¬ļ horizontal resolution. The results are evaluated against field measurement data from the 2002 Aerosol Nucleation and Real Time Characterization Experiment (ANARChE) in Atlanta, Georgia, as well as satellite and reanalysis data. We have also explored the relationship between √?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?clean marine√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬Ě aerosol optical properties and ocean surface wind speed using remotely sensed data from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) on board the CALIPSO satellite and the Advanced Microwave Scanning Radiometer (AMSR-E) on board the AQUA satellite. Detailed data analyses

Meskhidze, Nicholas; Zhang, Yang; Kamykowski, Daniel

2012-03-28T23:59:59.000Z

288

LONG-TERM GLOBAL WATER USE PROJECTIONS USING SIX SOCIOECONOMIC SCENARIOS IN AN INTEGRATED ASSESSMENT MODELING FRAMEWORK  

SciTech Connect (OSTI)

In this paper, we assess future water demands for the agricultural (irrigation and livestock), energy (electricity generation, primary energy production and processing), industrial (manufacturing and mining), and municipal sectors, by incorporating water demands into a technologically-detailed global integrated assessment model of energy, agriculture, and climate change Ė the Global Change Assessment Model (GCAM). Base-year water demandsóboth gross withdrawals and net consumptive useóare assigned to specific modeled activities in a way that maximizes consistency between bottom-up estimates of water demand intensities of specific technologies and practices, and top-down regional and sectoral estimates of water use. The energy, industrial, and municipal sectors are represented in fourteen geopolitical regions, with the agricultural sector further disaggregated into as many as eighteen agro-ecological zones (AEZs) within each region. We assess future water demands representing six socioeconomic scenarios, with no constraints imposed by future water supplies. The scenarios observe increases in global water withdrawals from 3,578 km3 year-1 in 2005 to 5,987 Ė 8,374 km3 year-1 in 2050, and to 4,719 Ė 12,290 km3 year-1 in 2095. Comparing the projected total regional water withdrawals to the historical supply of renewable freshwater, the Middle East exhibits the highest levels of water scarcity throughout the century, followed by India; water scarcity increases over time in both of these regions. In contrast, water scarcity improves in some regions with large base-year electric sector withdrawals, such as the USA and Canada, due to capital stock turnover and the almost complete phase-out of once-through flow cooling systems. The scenarios indicate that: 1) water is likely a limiting factor in climate change mitigation policies, 2) many regions can be expected to increase reliance on non-renewable groundwater, water reuse, and desalinated water, but they also highlight an important role for development and deployment of water conservation technologies and practices.

Hejazi, Mohamad I.; Edmonds, James A.; Clarke, Leon E.; Kyle, G. Page; Davies, Evan; Chaturvedi, Vaibhav; Wise, Marshall A.; Patel, Pralit L.; Eom, Jiyong; Calvin, Katherine V.; Moss, Richard H.; Kim, Son H.

2014-01-19T23:59:59.000Z

289

Global Climate Modeling of the Martian water cycle with improved microphysics and radiatively active water ice clouds  

E-Print Network [OSTI]

Radiative effects of water ice clouds have noteworthy consequences on the Martian atmosphere, its thermal structure and circulation. Accordingly, the inclusion of such effects in the LMD Mars Global Climate Model (GCM) greatly modifies the simulated Martian water cycle. The intent of this paper is to address the impact of radiatively active clouds on atmospheric water vapor and ice in the GCM and improve its representation. We propose a new enhanced modeling of the water cycle, consisting of detailed cloud microphysics with dynamic condensation nuclei and a better implementation of perennial surface water ice. This physical modeling is based on tunable parameters. This new version of the GCM is compared to the Thermal Emission Spectrometer observations of the water cycle. Satisfying results are reached for both vapor and cloud opacities. However, simulations yield a lack of water vapor in the tropics after Ls=180{\\deg} which is persistent in simulations compared to observations, as a consequence of aphelion c...

Navarro, Thomas; Forget, FranÁois; Spiga, Aymeric; Millour, Ehouarn; Montmessin, Franck

2013-01-01T23:59:59.000Z

290

Predicting tropospheric ozone and hydroxyl radical in a global, three-dimensional, chemistry, transport, and deposition model  

SciTech Connect (OSTI)

Two of the most important chemically reactive tropospheric gases are ozone (O{sub 3}) and the hydroxyl radical (OH). Although ozone in the stratosphere is a necessary protector against the sun`s radiation, tropospheric ozone is actually a pollutant which damages materials and vegetation, acts as a respiratory irritant, and is a greenhouse gas. One of the two main sources of ozone in the troposphere is photochemical production. The photochemistry is initiated when hydrocarbons and carbon monoxide (CO) react with nitrogen oxides (NO{sub x} = NO + NO{sub 2}) in the presence of sunlight. Reaction with the hydroxyl radical, OH, is the main sink for many tropospheric gases. The hydroxyl radical is highly reactive and has a lifetime on the order of seconds. Its formation is initiated by the photolysis of tropospheric ozone. Tropospheric chemistry involves a complex, non-linear set of chemical reactions between atmospheric species that vary substantially in time and space. To model these and other species on a global scale requires the use of a global, three-dimensional chemistry, transport, and deposition (CTD) model. In this work, I developed two such three dimensional CTD models. The first model incorporated the chemistry necessary to model tropospheric ozone production from the reactions of nitrogen oxides with carbon monoxide (CO) and methane (CH{sub 4}). The second also included longer-lived alkane species and the biogenic hydrocarbon isoprene, which is emitted by growing plants and trees. The models` ability to predict a number of key variables (including the concentration of O{sub 3}, OH, and other species) were evaluated. Then, several scenarios were simulated to understand the change in the chemistry of the troposphere since preindustrial times and the role of anthropogenic NO{sub x} on present day conditions.

Atherton, C.S.

1995-01-05T23:59:59.000Z

291

Energy Monitoring of Software project-team  

E-Print Network [OSTI]

Energy Monitoring of Software Systems project-team Romain Rouvoy Aurélien Bourdon Adel Noureddine Lionel Seinturier firstname.lastname@inria.fr #12;ICT & Energy 2% of the global energy consumption in 2007 [1] [1] Gartner #12;ICT & Energy [1] 2008 ICT report, Ecology Ministry 13.5% of the electricity

Lefèvre, Laurent

292

Regional & Global Climate Modeling (RGCM) Program | U.S. DOE Office of  

Office of Science (SC) Website

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched5 IndustrialIsadore Perlman,BiosScience (SC) Regional & Global Climate

293

A Vast Machine: Computer Models, Climate Data, and the Politics of Global Warming  

E-Print Network [OSTI]

Review: A Vast Machine: Computer Models, Climate Data, andEdwards, Paul N. A Vast Machine: Computer Models, ClimateEdwards, Paul N. 2004. "A vast machine: standards as social

Maret, Susan

2011-01-01T23:59:59.000Z

294

BIOMETRICS55, 580-584 A Global Goodness-of-Fit Statistic for Cox Regression Models  

E-Print Network [OSTI]

of the models would be helpful. Schoenfeld (1980), Moreau, O'Quigley, and Mesbah (1985), and Moreau, O'Quigley

Parzen, Michael

295

Global economics/energy/environmental (E{sup 3}) modeling of long-term nuclear energy futures  

SciTech Connect (OSTI)

A global energy, economics, environment (E{sup 3}) model has been adopted and modified with a simplified, but comprehensive and multi-regional, nuclear energy module. Using this model, consistent nuclear energy scenarios are constructed. A spectrum of future is examined at two levels in a hierarchy of scenario attributes in which drivers are either external or internal to nuclear energy. Impacts of a range of nuclear fuel-cycle scenarios are reflected back to the higher-level scenario attributes. An emphasis is placed on nuclear materials inventories (in magnitude, location, and form) and their contribution to the long-term sustainability of nuclear energy and the future competitiveness of both conventional and advanced nuclear reactors.

Krakowski, R.A.; Davidson, J.W.; Bathke, C.G.; Arthur, E.D.; Wagner, R.L. Jr.

1997-09-01T23:59:59.000Z

296

Engineering secure software  

E-Print Network [OSTI]

In recent years computer software has gained notoriety for the endemic nature of security problems in software. These problems have been exploited with malicious intent by attackers. Most attempts at fixing these problems have been after...

Jetly, Prateek

2001-01-01T23:59:59.000Z

297

Comparative Testing of the ESL's Code-Compliant Simulation Model and the FSEC's EnergyGauge Software  

E-Print Network [OSTI]

.................................................................................... 7 3. COMPARISONS OF THE ESL MODEL AND FSECíS ENERGYGAUGE............... 9 3.1 With the duct leakage.................................................................................................... 9 3.2 Without the duct leakage... parameters. ......................................................................................... 7 Table 2. Simulation summary........................................................................................... 36 Error! No table of figures...

Haberl, J. S.; Liu, Z.; Kim, S.

298

The Role Of Modeling Assumptions And Policy Instruments in Evaluating The Global Implications Of U.S. Biofuel Policies  

SciTech Connect (OSTI)

The primary objective of current U.S. biofuel law the Energy Independence and Security Act of 2007 (EISA) is to reduce dependence on imported oil, but the law also requires biofuels to meet carbon emission reduction thresholds relative to petroleum fuels. EISA created a renewable fuel standard with annual targets for U.S. biofuel use that climb gradually from 9 billion gallons per year in 2008 to 36 billion gallons (or about 136 billion liters) of biofuels per year by 2022. The most controversial aspects of the biofuel policy have centered on the global social and environmental implications of its potential land use effects. In particular, there is an ongoing debate about whether indirect land use change (ILUC) make biofuels a net source, rather sink, of carbon emissions. However, estimates of ILUC induced by biofuel production and use can only be inferred through modeling. This paper evaluates how model structure, underlying assumptions, and the representation of policy instruments influence the results of U.S. biofuel policy simulations. The analysis shows that differences in these factors can lead to divergent model estimates of land use and economic effects. Estimates of the net conversion of forests and grasslands induced by U.S. biofuel policy range from 0.09 ha/1000 gallons described in this paper to 0.73 ha/1000 gallons from early studies in the ILUC change debate. We note that several important factors governing LUC change remain to be examined. Challenges that must be addressed to improve global land use change modeling are highlighted.

Oladosu, Gbadebo A [ORNL; Kline, Keith L [ORNL

2010-01-01T23:59:59.000Z

299

Phase separation and charge-ordered phases of the d=3 Falicov-Kimball model at nonzero temperature: Temperature-density-chemical potential global phase diagram from renormalization-group theory  

E-Print Network [OSTI]

The global phase diagram of the spinless Falicov-Kimball model in d=3 spatial dimensions is obtained by renormalization-group theory. This global phase diagram exhibits five distinct phases. Four of these phases are ...

Sariyer, Ozan S.

300

An isospin dependent global nucleon-nucleus optical model at intermediate energies  

E-Print Network [OSTI]

A global nucleon-nucleus optical potential for elastic scattering has been produced which replicates experimental data to high accuracy and compares well with other recently formulated potentials. The calculation that has been developed describes proton and neutron scattering from target nuclei ranging from carbon to nickel and is applicable for projectile energies from 30 to 160 MeV. With these ranges it is suitable for calculations associated with experiments performed by exotic beam accelerators. The potential is also isospin dependent and has both real and imaginary isovector asymmetry terms to better describe the dynamics of chains of isotopes and mirror nuclei. An analysis of the validity and strength of the asymmetry term is included with connections established to other optical potentials and charge-exchange reaction data. An on-line observable calculator is available for this optical potential.

S. P. Weppner; R. B. Penney; G. W. Diffendale; G. Vittorini

2014-03-04T23:59:59.000Z

Note: This page contains sample records for the topic "modeling software global" 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

THE SOFTWARE KNOWLEDGE BASE Bertrand Meyer  

E-Print Network [OSTI]

knowledge base" keeps track of software components and their properties; these properties are described, implementation, testing, project management). The use of the binary relational model for describing the properties of software is hacked by a theoretical study of the relations and constraints which play

Meyer, Bertrand

302

National Energy Software Center  

SciTech Connect (OSTI)

A short introduction is given to the services of the National Energy Software Library at the Argonne National Laboratory. The objectives, history, and software collection of the center are presented. Information on ordering from the software collection of the library is also included. 4 refs., 3 tabs. (DWL)

Eyberger, L.R.

1986-01-01T23:59:59.000Z

303

Author's personal copy Two-way coupling of an ENSO model to the global climate model CLIMBER-3a  

E-Print Network [OSTI]

it is possible to introduce ENSO variability to an Earth system Model of Intermediate Complexity (EMIC we are using here. In this study we couple the Earth system model of intermediate complexity (EMIC

Levermann, Anders

304

CliCrop: a Crop Water-Stress and Irrigation Demand Model for an Integrated Global Assessment Model Approach  

E-Print Network [OSTI]

This paper describes the use of the CliCrop model in the context of climate change general assessment

Fant, C.A.

305

A Global Interactive Chemistry and Climate Model Chien Wang, Ronald G. Prinn and Andrei P. Sokolov  

E-Print Network [OSTI]

with calculated or estimated trace gas emissions from both anthropogenic and natural sources, it is designed to the chemistry sub-model. Model predictions of the surface trends of several key species are close, if the current increasing trends of anthropogenic emissions of climate-relevant gases are continued over the next

306

Analysis of the singular vectors of the full-physics FSU Global Spectral Model  

E-Print Network [OSTI]

for the numerical weather prediction models has been the subject of numerous studies. For the barotropic atmosphere-growth estimation in numerical weather prediction and atmospheric predictability (Molteni and Palmer, 1993 predictability of an idealized model. However, singular vector analysis was carried out for the realistic meteo

Aluffi, Paolo

307

Malthusian assumptions lead to Boserupian phenology in a global model of the transitions to agriculture  

E-Print Network [OSTI]

In the many transitions from foraging to agropastoralism it is debated whether innovation in technology or increase of population is the primary driver. The driver discussion traditionally separates Malthusian (technology driven) from Boserupian (population driven) theories. I present a numerical model of the transition to agriculture and discuss this model in the light of the population versus technology debate and in Boserup's analytical frame- work in development theory. Although my model is based on ecological-Neomalthusian- principles, the coevolutionary positive feedback relationship between technology and population results in apparent Boserupian behaviour: innovation is greatest when population pressure is highest. This outcome is not only visible in the theory-driven reduced model, but is also present in a corresponding "real world" simulator which was tested against archaeological data, and which thus demonstrates the relevance and validity of the coevolutionary model. The lesson to be learned is th...

Lemmen, Carsten

2011-01-01T23:59:59.000Z

308

Direct Insertion of MODIS Radiances in a Global Aerosol Transport Model CLARK WEAVER,* ARLINDO DA SILVA, MIAN CHIN,# PAUL GINOUX,@ OLEG DUBOVIK,&,@@  

E-Print Network [OSTI]

is directly inserted into the Goddard Chemistry and Aerosol Radiation Transport model (GOCART), which aerosol radiative forcing in the thermody- namic equation of GCMs, 3) to account for the reduc- tionDirect Insertion of MODIS Radiances in a Global Aerosol Transport Model CLARK WEAVER,* ARLINDO DA

Chin, Mian

309

GENII Version 2 Software Design Document  

SciTech Connect (OSTI)

This document describes the architectural design for the GENII-V2 software package. This document defines details of the overall structure of the software, the major software components, their data file interfaces, and specific mathematical models to be used. The design represents a translation of the requirements into a description of the software structure, software components, interfaces, and necessary data. The design focuses on the major components and data communication links that are key to the implementation of the software within the operating framework. The purpose of the GENII-V2 software package is to provide the capability to perform dose and risk assessments of environmental releases of radionuclides. The software also has the capability of calculating environmental accumulation and radiation doses from surface water, groundwater, and soil (buried waste) media when an input concentration of radionuclide in these media is provided. This report represents a detailed description of the capabilities of the software product with exact specifications of mathematical models that form the basis for the software implementation and testing efforts. This report also presents a detailed description of the overall structure of the software package, details of main components (implemented in the current phase of work), details of data communication files, and content of basic output reports. The GENII system includes the capabilities for calculating radiation doses following chronic and acute releases. Radionuclide transport via air, water, or biological activity may be considered. Air transport options include both puff and plume models, each allow use of an effective stack height or calculation of plume rise from buoyant or momentum effects (or both). Building wake effects can be included in acute atmospheric release scenarios. The code provides risk estimates for health effects to individuals or populations; these can be obtained using the code by applying appropriate risk factors to the effective dose equivalent or organ dose. In addition, Version 2 uses cancer risk factors from Federal Guidance Report 13 to estimate risk to specific organs or tissues.

Napier, Bruce A.; Strenge, Dennis L.; Ramsdell, James V.; Eslinger, Paul W.; Fosmire, Christian J.

2004-03-08T23:59:59.000Z

310

Sensitivity of Remote Aerosol Distributions to Representation of Cloud-Aerosol Interactions in a Global Climate Model  

SciTech Connect (OSTI)

Many global aerosol and climate models, including the widely used Community Atmosphere Model version 5 (CAM5), have large biases in predicting aerosols in remote regions such as upper troposphere and high latitudes. In this study, we conduct CAM5 sensitivity simulations to understand the role of key processes associated with aerosol transformation and wet removal affecting the vertical and horizontal long-range transport of aerosols to the remote regions. Improvements are made to processes that are currently not well represented in CAM5, which are guided by surface and aircraft measurements together with results from a multi-scale aerosol-climate model (PNNL-MMF) that explicitly represents convection and aerosol-cloud interactions at cloud-resolving scales. We pay particular attention to black carbon (BC) due to its importance in the Earth system and the availability of measurements. We introduce into CAM5 a new unified scheme for convective transport and aerosol wet removal with explicit aerosol activation above convective cloud base. This new implementation reduces the excessive BC aloft to better simulate observed BC profiles that show decreasing mixing ratios in the mid- to upper-troposphere. After implementing this new unified convective scheme, we examine wet removal of submicron aerosols that occurs primarily through cloud processes. The wet removal depends strongly on the sub-grid scale liquid cloud fraction and the rate of conversion of liquid water to precipitation. These processes lead to very strong wet removal of BC and other aerosols over mid- to high latitudes during winter months. With our improvements, the Arctic BC burden has a10-fold (5-fold) increase in the winter (summer) months, resulting in a much better simulation of the BC seasonal cycle as well. Arctic sulphate and other aerosol species also increase but to a lesser extent. An explicit treatment of BC aging with slower aging assumptions produces an additional 30-fold (5-fold) increase in the Arctic winter (summer) BC burden. This BC aging treatment, however, has minimal effect on other under-predicted species. Interestingly, our modifications to CAM5 that aim at improving prediction of high-latitude and upper tropospheric aerosols also produce much better AOD and AAOD over various other regions globally when compared to multi-year AERONET retrievals. The improved aerosol distributions have impacts on other aspects of CAM5, improving the simulation of global mean liquid water path and cloud forcing.

Wang, Hailong; Easter, Richard C.; Rasch, Philip J.; Wang, Minghuai; Liu, Xiaohong; Ghan, Steven J.; Qian, Yun; Yoon, Jin-Ho; Ma, Po-Lun; Vinoj, V.

2013-06-05T23:59:59.000Z

311

From Agile Software Product Line Engineering Towards Software  

E-Print Network [OSTI]

construction of software applications using pre- developed assets. Agile software development (ASD) is another in this thesis: RQ1: How can software product line engineering and agile software development be combined? RQ2From Agile Software Product Line Engineering Towards Software Ecosystems Geir Kjetil Hanssen

Langseth, Helge

312

Do Coupled Climate Models Correctly SImulate the Upward Branch of the Deept Ocean Global Conveyor?  

SciTech Connect (OSTI)

The large-scale meridional overturning circulation (MOC) connects the deep ocean, a major reservoir of carbon, to the other components of the climate system and must therefore be accurately represented in Earth System Models. Our project aims to address the specific question of the pathways and mechanisms controlling the upwelling branch of the MOC, a subject of significant disagreement between models and observational syntheses, and among general circulation models. Observations of these pathways are limited, particularly in regions of complex hydrography such as the Southern Ocean. As such, we rely on models to examine theories of the overturning circulation, both physically and biogeochemically. This grant focused on a particular aspect of the meridional overturning circulation (MOC) where there is currently significant disagreement between models and observationally based analyses of the MOC, and amongst general circulation models. In particular, the research focused on addressing the following questions: 1. Where does the deep water that sinks in the polar regions rise to the surface? 2. What processes are responsible for this rise? 3. Do state-of-the-art coupled GCMs capture these processes? Our research had three key components: observational synthesis, model development and model analysis. In this final report we outline the key results from these areas of research for the 2007 to 2012 grant period. The research described here was carried out primarily by graduate student, Daniele Bianchi (now a Postdoc at McGill University, Canada), and Postdoc Stephanie Downes (now a Research Fellow at The Australian national University, Australia). Additional support was provided for programmers Jennifer Simeon as well as Rick Slater.

Sarmiento, Jorge L; Downes, Stephanie; Bianchi, Daniele

2013-01-17T23:59:59.000Z

313

Optimization and sensitivity of a global biogeochemistry ocean model using combined in situ DIC, alkalinity, and phosphate data  

E-Print Network [OSTI]

anthropogenic CO 2 in the Pacific Ocean, Global Biogeochem.dissolution in the Pacific Ocean, Global Biogeochem. Cycles,PO 4 ] in the equatorial Pacific Ocean by approximately 70%.

Kwon, Eun Young; Primeau, Francois

2008-01-01T23:59:59.000Z

314

Observed Scaling in Clouds and Precipitation and Scale Incognizance in Regional to Global Atmospheric Models  

SciTech Connect (OSTI)

We use observations of robust scaling behavior in clouds and precipitation to derive constraints on how partitioning of precipitation should change with model resolution. Our analysis indicates that 90-99% of stratiform precipitation should occur in clouds that are resolvable by contemporary climate models (e.g., with 200 km or finer grid spacing). Furthermore, this resolved fraction of stratiform precipitation should increase sharply with resolution, such that effectively all stratiform precipitation should be resolvable above scales of ~50 km. We show that the Community Atmosphere Model (CAM) and the Weather Research and Forecasting (WRF) model also exhibit the robust cloud and precipitation scaling behavior that is present in observations, yet the resolved fraction of stratiform precipitation actually decreases with increasing model resolution. A suite of experiments with multiple dynamical cores provides strong evidence that this `scale-incognizant' behavior originates in one of the CAM4 parameterizations. An additional set of sensitivity experiments rules out both convection parameterizations, and by a process of elimination these results implicate the stratiform cloud and precipitation parameterization. Tests with the CAM5 physics package show improvements in the resolution-dependence of resolved cloud fraction and resolved stratiform precipitation fraction.

O'Brien, Travis A.; Li, Fuyu; Collins, William D.; Rauscher, Sara; Ringler, Todd; Taylor, Mark; Hagos, Samson M.; Leung, Lai-Yung R.

2013-12-01T23:59:59.000Z

315

REGIONAL IMPACTS OF THE GLOBAL CARBON STAKES: LONG-TERM PROSPECTIVE WITH THE TIMES INTEGRATED ASSESSMENT MODEL  

E-Print Network [OSTI]

, the progress of primary energy consumption and the energy mix. This paper compares global efforts on CO2 and Nadia Ma√Įzi 33rd IAEE International Conference: "The future of energy: global challenges, diverse the carbon constraints. JEL O21, Q29, Q4, Q54, Q58 Keywords Global energy system, CO2 mitigation targets

Paris-Sud XI, Université de

316

Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling  

E-Print Network [OSTI]

Abstract. We have extended the 3-D ocean based ďGrid ENabled Integrated Earth system model Ē (GENIE-1) to help understand the role of ocean biogeochemistry and marine sediments in the long-term (?100 to 100 000 year) regulation of atmospheric CO2, and the importance of feedbacks between CO2 and climate. Here we describe the ocean carbon cycle, which in its first incarnation is based around a simple single nutrient (phosphate) control on biological productivity. The addition of calcium carbonate preservation in deep-sea sediments and its role in regulating atmospheric CO2 is presented elsewhere (Ridgwell and Hargreaves, 2007). We have calibrated the model parameters controlling ocean carbon cycling in GENIE-1 by assimilating 3-D observational datasets of phosphate and alkalinity using an ensemble Kalman filter method. The calibrated (mean) model predicts

A. Ridgwell; J. C. Hargreaves; N. R. Edwards; J. D. Annan; T. M. Lenton; R. Marsh; A. Yool; A. Watson

2006-01-01T23:59:59.000Z

317

Lifecycle Model  

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

This chapter describes the lifecycle model used for the Departmental software engineering methodology.

1997-05-21T23:59:59.000Z

318

Sandia National Laboratories: Global Climate & Energy  

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

20, 2013, in Advanced Materials Laboratory, Energy Efficiency, Facilities, Global Climate & Energy, Materials Science, Modeling, Modeling & Analysis, Partnership, Research &...

319

Documentation of the Tangent Linear and Adjoint Models of New MPI Version of the FSU Global  

E-Print Network [OSTI]

over the optimal interpolation and 3-D data assimilation and con- sidering the ever increasing types of observational data, especially the asynoptic data, 4-D variational data assimilation has attracted more and more(Li, Navon and Zhu 2000). The objective of the 4-D variational data assimilation is to fit the model

Navon, Michael

320

Using Citizen Science Data to Model the Distributions of Common Songbirds of Turkey Under Different Global  

E-Print Network [OSTI]

Using Citizen Science Data to Model the Distributions of Common Songbirds of Turkey Under Different¬łit Bilgin1 * 1 Institute of Environmental Sciences, Bogazic¬łi University, Istanbul, Turkey, 2 Department of Biology, Natural History Museum Research and Application Center, Ege University, Izmir, Turkey, 3

Tipple, Brett

Note: This page contains sample records for the topic "modeling software global" 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

The Transition-Zone Water Filter Model for Global Material Circulation: Where Do We Stand?  

E-Print Network [OSTI]

with a small melt fraction, highly incompatible elements including hydro- gen, helium and argon are sequestered the fraction of water is small. Models have been developed to understand the structure of a melt layer Hilst, et al., 1997]), then the whole mantle is depleted with only a small volume (~10%) of relatively

322

Global Fitting Project Brookhaven National Laboratory  

E-Print Network [OSTI]

· Global Fitting - procedures, software · Recent Projects - new data sets · Program Components on the CTEQ fits · Also used for CCFR and NuTeV DIS analyses #12;CTEQ Project Procedures · Each new projectCTEQ Global Fitting Project J.F. Owens Brookhaven National Laboratory October 8, 2007 #12;Outline

Ohta, Shigemi

323

15 Software Product Line Engineering with the UML: Deriving Products  

E-Print Network [OSTI]

15 Software Product Line Engineering with the UML: Deriving Products T. Ziadi and J.-M. Jťzťquel Abstract Software product line engineering introduces two new dimensions into the traditional engineering of software-based systems: the variability modeling and the product derivation. The variability gathers

Paris-Sud XI, Universitť de

324

Modeling of Zircon (ZrSiO{sub 4}) and Zirconia (ZrO{sub 2}) using ADF-GUI Software  

SciTech Connect (OSTI)

Natural zircon (ZrSiO{sub 4}) has very high concentration of Uranium and Thorium of up to 5000 ppm. Radioactive decay process of alpha particles from these impurities affects some changes like several atomic displacements in the crystalline structure of zircon. The amount of track density caused by alpha particles decay process of these radioactive materials in zircon can be decreased with annealing temperatures from 700 deg. C to 980 deg. C. Recently it has been extensively studied as the possible candidate material for immobilization of fission products and actinides. Besides, zirconia (ZrO{sub 2}), product from natural zircon, is widely used in industrial field because it has excellent chemical and mechanical properties at high temperature. Dielectric constant of monoclinic, cubic and tetragonal ZrO{sub 2} can be found in the range of 22, 35 and 50 by computer simulation works. In recent years, atomistic simulations and modeling have been studied, because a lot of computational techniques can offer atomic-level approaching with minimum errors in estimations. One favorite methods is Density Functional Theory (DFT). In this study, ADF-GUI software from DFT will be used to calculate the frequency and absorption Intensity of zircon and zirconia molecules. The data from calculations will be verified with experimental works such as Raman Spectroscopy, AFM and XRD.

Lwin, Maung Tin Moe [Applied Radiation Laboratory, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia); Amin, Yusoff Mohd; Kassim, Hasan Abu; Kamaluddin, Burhanuddin [Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)

2010-07-07T23:59:59.000Z

325

A Scientific Trigger Unit for Space-Based Real-Time Gamma Ray Burst Detection, I - Scientific Software Model and Simulations  

E-Print Network [OSTI]

The on-board Scientific Trigger Unit (UTS) is designed to detect Gamma Ray Bursts (GRBs) in real-time, using the data produced by the ECLAIRs camera, foreseen to equip the future French-Chinese satellite mission SVOM (Space-based Variable Objects Monitor). The UTS produces GRB alerts, sent to the ground for GRB follow-up observations, and requests the spacecraft slew to repoint its narrow field instruments onto the GRB afterglow. Because of the diversity of GRBs in duration and variability, two simultaneously running GRB trigger algorithms are implemented in the UTS, the so called Image Trigger performing systematic sky image reconstruction on time scales above 20 s, and the Count-Rate Trigger, selecting a time scale from 10 ms to 20 s showing an excess in count-rate over background estimate, prior to imaging the excess for localization on the sky. This paper describes both trigger algorithms and their implementation in a library, compiled for the Scientific Software Model (SSM) running on standard Linux mach...

Schanne, Stťphane; Kestener, Pierre; Gros, Aleksandra; Cortial, Marin; GŲtz, Diego; Sizun, Patrick; Ch‚teau, Frťdťric; Cordier, Bertrand

2014-01-01T23:59:59.000Z

326

Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds  

SciTech Connect (OSTI)

Project goals: (1) Use the routine surface and airborne measurements at the ARM SGP site, and the routine surface measurements at the NSA site, to continue our evaluations of model aerosol simulations; (2) Determine the degree to which the Raman lidar measurements of water vapor and aerosol scattering and extinction can be used to remotely characterize the aerosol humidification factor; (3) Use the high temporal resolution CARL data to examine how aerosol properties vary near clouds; and (4) Use the high temporal resolution CARL and Atmospheric Emitted Radiance Interferometer (AERI) data to quantify entrainment in optically thin continental cumulus clouds.

Richard A. Ferrare; David D. Turner

2011-09-01T23:59:59.000Z

327

A Cross-model Comparison of Global Long-term Technology Diffusion under a 2?C Climate Change Control Target  

SciTech Connect (OSTI)

We investigate the long-term global energy technology diffusion patterns required to reach a stringent climate change target with a maximum average atmospheric temperature increase of 2įC. If the anthropogenic temperature increase is to be limited to 2įC, total CO2 emissions have to be reduced massively, so as to reach substantial negative values during the second half of the century. Particularly power sector CO2 emissions should become negative from around 2050 onwards according to most models used for this analysis in order to compensate for GHG emissions in other sectors where abatement is more costly. The annual additional capacity deployment intensity (expressed in GW/yr) for solar and wind energy until 2030 needs to be around that recently observed for coal-based power plants, and will have to be several times higher in the period 2030Ė2050. Relatively high agreement exists across models in terms of the aggregated low-carbon energy system cost requirements on the supply side until 2050, which amount to about 50 trillion US$.

van der Zwaan, Bob; Rosler, Hilke; Kober, Tom; Aboumahboub, Tino; Calvin, Katherine V.; Gernaat, David; Marangoni, Giacomo; McCollum, David

2013-11-01T23:59:59.000Z

328

Global SAXS Data Analysis for Multilamellar Vesicles: Evolution of the Scattering Density Profile (SDP) Model  

SciTech Connect (OSTI)

The highly successful scattering density profile (SDP) model, used to jointly analyze small-angle X-ray and neutron scattering data from unilamellar vesicles, has been adapted for use with data from fully hydrated, liquid crystalline multilamellar vesicles (MLVs). Using a genetic algorithm, this new method is capable of providing high-resolution structural information, as well as determining bilayer elastic bending fluctuations from standalone X-ray data. Structural parameters such as bilayer thickness and area per lipid were determined for a series of saturated and unsaturated lipids, as well as binary mixtures with cholesterol. The results are in good agreement with previously reported SDP data, which used both neutron and X-ray data. The inclusion of deuterated and non-deuterated MLV neutron data in the analysis improved the lipid backbone information but did not improve, within experimental error, the structural data regarding bilayer thickness and area per lipid.

Heftberger, Peter [University of Graz, Institute of Molecular Biosciences, Austria] [University of Graz, Institute of Molecular Biosciences, Austria; Kollmitzer, Benjamin [University of Graz, Institute of Molecular Biosciences, Austria] [University of Graz, Institute of Molecular Biosciences, Austria; Heberle, Frederick A [ORNL] [ORNL; Pan, Jianjun [ORNL] [ORNL; Rappolt, Michael [University of Leeds, UK] [University of Leeds, UK; Amenitsch, Heinz [Graz University of Technology] [Graz University of Technology; Kucerka, Norbert [Atomic Energy of Canada Limited (AECL), Canadian Neutron Beam Centre (CNBC) and Comenius University,] [Atomic Energy of Canada Limited (AECL), Canadian Neutron Beam Centre (CNBC) and Comenius University,; Katsaras, John [ORNL] [ORNL; Pabst, georg [University of Graz, Institute of Molecular Biosciences, Austria] [University of Graz, Institute of Molecular Biosciences, Austria

2014-01-01T23:59:59.000Z

329

Software Architectural Transformation: A New Approach to Low Energy Embedded Software  

E-Print Network [OSTI]

-blocking #12;OS energy macro-models(1/4) Definition A function expressing the relationship between ∑ EnergySoftware Architectural Transformation: A New Approach to Low Energy Embedded Software T.K. Tan, ARim Han #12;Contents Introduction Overview of the approach Energy minimization methodology SAG & OS energy

Bae, Doo-Hwan

330

Software Safety Tutorial Status Update 1 Software Safety Tutorial  

E-Print Network [OSTI]

Software Safety Tutorial Status Update 1 Software Safety Tutorial (Status Update) Jeff Tian, tian@engr.smu.edu CSE, SMU, Dallas, TX 75275 Topics · Project Overview · Software Safety Overview · Project Tasks/Schedule/Progress Jeff Tian August 31, 2007 #12;Software Safety Tutorial Status Update 2 What Is Software Safety

Tian, Jeff

331

The Resilience of the Indian Economy to Rising Oil Prices as a Validation Test for a Global Energy-Environment-Economy CGE Model  

E-Print Network [OSTI]

as on how short-term mechanisms ­ and policy action ­ can smooth the negative impacts of energy price shocks1 The Resilience of the Indian Economy to Rising Oil Prices as a Validation Test for a Global Energy-Environment-Economy CGE Model Céline Guivarcha, * , Stéphane Hallegattea,b , Renaud Crassousa

Paris-Sud XI, Université de

332

UC Irvine's Earth System Science Department has opportunities for postdocs and grad. students interested in global-scale cryospheric modeling. Our projects  

E-Print Network [OSTI]

interested in global-scale cryospheric modeling. Our projects (http://www.ess.uci.edu/~zender#ans and http://www.ess among the groups of Professors Charlie Zender (Aerosols, Radiation, http://www.ess.uci.edu/~zender), Jay Famiglietti (Hydrology, http://www.ess.uci.edu/~famiglietti), and Jim Randerson (Fire, C, H2O, http://www.ess

Zender, Charles

333

Using NASA Remote Sensing Data to Reduce Uncertainty of Land-Use Transitions in Global Carbon-Climate Models: Data Management Plan  

E-Print Network [OSTI]

-use transitions and their inherent uncertainty. Our plan for managing these datasets includes quality assessmentUsing NASA Remote Sensing Data to Reduce Uncertainty of Land-Use Transitions in Global Carbon-Climate Models: Data Management Plan L. Chini, G.C. Hurtt, M. Hansen, and P. Potapov Department of Geography

334

Global MHD modeling of the impact of a solar wind pressure change Kristi A. Keller, Michael Hesse, Maria Kuznetsova, Lutz Rastatter, and Therese Moretto  

E-Print Network [OSTI]

Global MHD modeling of the impact of a solar wind pressure change Kristi A. Keller, Michael Hesse of Michigan, Ann Arbor, Michigan, USA Received 26 February 2001; revised 21 December 2001; accepted 21 December 2001; published 23 July 2002. [1] A sudden increase in the solar wind dynamic pressure compresses

De Zeeuw, Darren L.

335

Probabilistic Software Workshop Probabilistic Software Workshop  

E-Print Network [OSTI]

such identification imply a recommendation or it imply that any of the materials, instruments or equipment identified products. ∑ NIST Disclaimer: Certain commercial equipment, instruments, software programs, and materials the official position of the National Institute of Standards and Technology or the U.S. Department of Justice

336

Tax Deduction Qualified Software  

Broader source: Energy.gov [DOE]

On this page you'll find information about the EnergyGauge Summit version 3.20 (incorporating DOE-2.1E (v120)) qualified computer software (buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

337

Tax Deduction Qualified Software  

Broader source: Energy.gov [DOE]

On this page you'll find information about the EnergyGauge Summit version 3.22 (incorporating DOE-2.1E (v120)) qualified computer software (buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

338

Tax Deduction Qualified Software  

Broader source: Energy.gov [DOE]

On this page you'll find information about the EnergyGauge Summit version 3.21 (incorporating DOE-2.1E (v120)) qualified computer software (buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

339

Software Services By Michal Antkiewicz  

E-Print Network [OSTI]

· Software Engineering ­ Methods and processes of software development · Evolving enterprise software and Component-Based Development to Build Web Service Applications. Cupertino, CA: Rational Software Corporation Agility · New market for car loans · New business service needed ­ Provide car loans · New software

Czarnecki, Krzysztof

340

Coating for Silicon Solar Cell by Using Silvaco Software  

E-Print Network [OSTI]

efficiency of SiO 2/Si3N 4silicon solar cell. The solar cell structure was modelled by using Silvaco software

A. Lennie; H. Abdullah; Z. M. Shila; M. A. Hannan

Note: This page contains sample records for the topic "modeling software global" 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

Introduction Literature Review Supply Chain Network Model Simulation Studies Conclusions Supply Chain Networks with Global Outsourcing and  

E-Print Network [OSTI]

Chain Networks with Global Outsourcing and Quick-Response Production under Demand and Cost Uncertainty Literature review Supply chain network with global outsourcing and quick-response production under demand of Management University of Massachusetts at Amherst INFORMS 2012 Annual Meeting, Nov 13-16, 2011 #12

Nagurney, Anna

342

Introduction Literature Review Supply Chain Network Model Simulation Studies Conclusions Supply Chain Networks with Global Outsourcing and  

E-Print Network [OSTI]

Chain Networks with Global Outsourcing and Quick-Response Production under Demand and Cost Uncertainty Literature review Supply chain network with global outsourcing and quick-response production under demand of Management University of Massachusetts at Amherst INFORMS 2012 Annual Meeting, Oct 14-17, 2012 #12

Nagurney, Anna

343

Introduction Literature Review Supply Chain Network Model Simulation Studies Conclusions Supply Chain Networks with Global Outsourcing and  

E-Print Network [OSTI]

Chain Networks with Global Outsourcing and Quick-Response Production under Demand and Cost Uncertainty of Management University of Massachusetts at Amherst DSI 2012 Annual Meeting, Nov 17-20, 2012 San Francisco, CA Introduction Literature review Supply chain network with global outsourcing and quick-response production under

Nagurney, Anna

344

Climate simulations and projections with a super-parameterized climate model. Journal of Environmental Modeling and Software. Volume: 60. Pages: 134-152  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

The mean climate and its variability are analyzed in a suite of numerical experiments with a fully coupled general circulation model in which subgrid-scale moist convection is explicitly represented through embedded 2D cloud-system resolving models. Control simulations forced by the present day, fixed atmospheric carbon dioxide concentration are conducted using two horizontal resolutions and validated against observations and reanalyses. The mean state simulated by the higher resolution configuration has smaller biases. Climate variability also shows some sensitivity to resolution but not as uniform as in the case of mean state. The interannual and seasonal variability are better represented in the simulation at lower resolution whereas the subseasonal variability is more accurate in the higher resolution simulation. The equilibrium climate sensitivity of the model is estimated from a simulation forced by an abrupt quadrupling of the atmospheric carbon dioxide concentration. The equilibrium climate sensitivity temperature of the model is 2.77 degrees C, and this value is slightly smaller than the mean value (3.37 degrees C) of contemporary models using conventional representation of cloud processes. The climate change simulation forced by the representative concentration pathway 8.5 scenario projects an increase in the frequency of severe droughts over most of the North America.

Stan, Cristiana; Xu, Li

2014-10-01T23:59:59.000Z

345

A 1:1000 scale model of the digital world: Global connectivity can lead to the extinction of local networks  

E-Print Network [OSTI]

The overwhelming success of online social networks, the key actors in the cosmos of the Web 2.0, has reshaped human interactions on a worldwide scale. To understand the fundamental mechanisms which determine the fate of online social networks at the system level, we recently introduced a general ecological theory of the digital world. In this paper, we discuss the impact of heterogeneity in the network intrinsic fitness and present how the general theory can be applied to understand the competition between an international network, like Facebook, and local services. To this end, we construct a 1:1000 scale model of the digital world enclosing the 80 countries with most Internet users. We find that above a certain threshold the level of global connectivity can lead to the extinction of local networks. In addition, we reveal the complex role the tendency of individuals to engage in more active networks plays for the probability of local networks to become extinct and provide insights into the conditions under w...

Kleineberg, Kaj-Kolja

2015-01-01T23:59:59.000Z

346

Downscaling Global Land Cover Projections from an Integrated Assessment Model for Use in Regional Analyses: Results and Evaluation for the US from 2005 to 2095  

SciTech Connect (OSTI)

Projections of land cover change generated from Integrated Assessment Models (IAM) and other economic-based models can be applied for analyses of environmental impacts at subregional and landscape scales. For those IAM and economic models that project land use at the sub-continental or regional scale, these projections must be downscaled and spatially distributed prior to use in climate or ecosystem models. Downscaling efforts to date have been conducted at the national extent with relatively high spatial resolution (30m) and at the global extent with relatively coarse spatial resolution (0.5 degree).

West, Tristram O.; Le Page, Yannick LB; Huang, Maoyi; Wolf, Julie; Thomson, Allison M.

2014-06-05T23:59:59.000Z

347

SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM | Department of...  

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

SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM System Maintenance Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM More...

348

A Comparison of Simulated Cloud Radar Output from the Multiscale Modeling Framework Global Climate Model with CloudSat Cloud Radar Observations  

SciTech Connect (OSTI)

Over the last few years a new type of global climate model (GCM) has emerged in which a cloud-resolving model is embedded into each grid cell of a GCM. This new approach is frequently called a multiscale modeling framework (MMF) or superparameterization. In this article we present a comparison of MMF output with radar observations from the NASA CloudSat mission, which uses a near-nadir-pointing millimeter-wavelength radar to probe the vertical structure of clouds and precipitation. We account for radar detection limits by simulating the 94 GHz radar reflectivity that CloudSat would observe from the high-resolution cloud-resolving model output produced by the MMF. Overall, the MMF does a good job of reproducing the broad pattern of tropical convergence zones, subtropical belts, and midlatitude storm tracks, as well as their changes in position with the annual solar cycle. Nonetheless, the comparison also reveals a number of model shortfalls including (1) excessive hydrometeor coverage at all altitudes over many convectively active regions, (2) a lack of low-level hydrometeors over all subtropical oceanic basins, (3) excessive low-level hydrometeor coverage (principally precipitating hydrometeors) in the midlatitude storm tracks of both hemispheres during the summer season (in each hemisphere), and (4) a thin band of low-level hydrometeors in the Southern Hemisphere of the central (and at times eastern and western) Pacific in the MMF, which is not observed by CloudSat. This band resembles a second much weaker ITCZ but is restricted to low levels.

Marchand, Roger T.; Haynes, J. M.; Mace, Gerald G.; Ackerman, Thomas P.; Stephens, Graeme L.

2009-01-13T23:59:59.000Z

349

CCD Astronomy Software User's Guide  

E-Print Network [OSTI]

CCDSoft CCD Astronomy Software User's Guide Version 5 Revision 1.11 Copyright © 1992­2006 SantaSky Astronomy Software, and AutomaDome are trademarks of Software Bisque. WindowsTM is a trademark of Microsoft

350

Software quality assurance handbook  

SciTech Connect (OSTI)

There are two important reasons for Software Quality Assurance (SQA) at Allied-Signal Inc., Kansas City Division (KCD): First, the benefits from SQA make good business sense. Second, the Department of Energy has requested SQA. This handbook is one of the first steps in a plant-wide implementation of Software Quality Assurance at KCD. The handbook has two main purposes. The first is to provide information that you will need to perform software quality assurance activities. The second is to provide a common thread to unify the approach to SQA at KCD. 2 figs.

Not Available

1990-09-01T23:59:59.000Z

351

Software Function Allocation Methodology  

E-Print Network [OSTI]

, 2 The Jackson Methodology 2. 1. 3 Higher Order Software 2. 1. 4 Structured Analysis and Design Technique 2. 1. 5 Software Requirements Engineering Methodology 2. 1. 6 Software Development System 2. 2 Relation to Current Research 3. SFAM... BACKGROUND 3. 1 SPAN Preconditions 3. 2 SFAM Concepts 3. 3 SFAM Environment 12 13 3. 3. 1 SPAM Decision Types 3. 3. 2 SFAM Goal 3. 3. 3 SFAM Environment Summary 13 16 16 TABLE OF CONTENTS (Continued) Page 3. 4 SFAM Outline 17 3. 4. 1 SFAM Step...

O'Neal, Michael Ralph

1988-01-01T23:59:59.000Z

352

Multiphase flow calculation software  

DOE Patents [OSTI]

Multiphase flow calculation software and computer-readable media carrying computer executable instructions for calculating liquid and gas phase mass flow rates of high void fraction multiphase flows. The multiphase flow calculation software employs various given, or experimentally determined, parameters in conjunction with a plurality of pressure differentials of a multiphase flow, preferably supplied by a differential pressure flowmeter or the like, to determine liquid and gas phase mass flow rates of the high void fraction multiphase flows. Embodiments of the multiphase flow calculation software are suitable for use in a variety of applications, including real-time management and control of an object system.

Fincke, James R. (Idaho Falls, ID)

2003-04-15T23:59:59.000Z

353

global integrated assessment model  

E-Print Network [OSTI]

, including emissions trading schemes and adaptation meas- ures. · Using GIAM, an illustrative long run include emissions trading schemes, carbon taxes, research and develop- ment schemes to encourage energy

Phipps, Steven J.

354

The Software Patent Debate†  

E-Print Network [OSTI]

The paper discusses the proposed European Directive on the Patentability of Computer-Implemented Inventions and the subsequent debate that followed. Do software patents - as argued by policymakers' - result in increased innovation?...

Guadamuz, Andres

2006-01-01T23:59:59.000Z

355

Software Quality Assurance  

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

DOE N 251.40, dated 5/3/01, extends this directive until 12/31/01. To define requirements and responsibilities for software quality assurance (SQA) within the Department of Energy (DOE). Does not cancel other directives.

2000-10-02T23:59:59.000Z

356

Software Quality Assurance  

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

To define requirements and responsibilities for software quality assurance (SQA) within the Department of Energy (DOE). DOE N 251.40, dated 5/3/01, extends this directive until 12/31/01.

2000-10-02T23:59:59.000Z

357

Trend analysis from 1970 to 2008 and model evaluation of EDGARv4 global gridded anthropogenic mercury emissions  

E-Print Network [OSTI]

The Emission Database for Global Atmospheric Research (EDGAR) provides a time-series of man-made emissions of greenhouse gases and short-lived atmospheric pollutants from 1970 to 2008. Mercury is included in EDGARv4.tox1, ...

Muntean, Marilena

358

A comparison of the gravity field over Central Europe from superconducting gravimeters, GRACE and global hydrological models, using EOF analysis  

E-Print Network [OSTI]

retrieve absolute storage. To compute the ground gravity,storage in four layers within the first 2 m of the ground (ground gravity arises from the local cell (within about 20 km), and the rest comes from global water storage (

Crossley, David; de Linage, Caroline; Hinderer, Jacques; Boy, Jean-Paul; Famiglietti, James

2012-01-01T23:59:59.000Z

359

Estimation of methane and carbon dioxide surface fluxes using a 3-D global atmospheric chemical transport model  

E-Print Network [OSTI]

Methane (CH?) and carbon dioxide (CO?) are the two most radiatively important greenhouse gases attributable to human activity. Large uncertainties in their source and sink magnitudes currently exist. We estimate global ...

Chen, Yu-Han, 1973-

2004-01-01T23:59:59.000Z

360

Unit 9: Software Economics To provide an empirical view of where the effort  

E-Print Network [OSTI]

amount by which cost driver can influence the software cost estimated by the model) black box #12 and rework costs – code and documentation costs – labour and capital costs – software costs by phase costs. An Important Issue • Why is it important to understand and control software costs? – software

Finkelstein, Anthony

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


361

Common Misconceptions about Software Architecture  

E-Print Network [OSTI]

Common Misconceptions about Software Architecture by Philippe Kruchten Rational Fellow Rational Software Canada References to architecture are everywhere: in every article, in every ad. And we take definition of software architecture. Are we all understanding the same thing? We gladly accept that software

van der Hoek, André

362

Copyright 1997 by Rational Software Corporation Analysis and Design  

E-Print Network [OSTI]

Page 1 Copyright © 1997 by Rational Software Corporation Analysis and Design with UML Page 2 Copyright © 1997 by Rational Software Corporation Agenda n Benefits of Visual Modeling n History of the UML n Visual Modeling with UML n The Rational Iterative Development Process #12;Page 3 Copyright © 1997

Mylopoulos, John

363

Self-adaptive software needs quantitative verification at Radu Calinescu  

E-Print Network [OSTI]

, performance and operating cost (e.g., energy consumption) of software. These techniques include model checkingSelf-adaptive software needs quantitative verification at runtime Radu Calinescu Department 1: The world and the machine. [19, 30]. In contrast, several mathematically-based modelling

Oxford, University of

364

Self-adaptive software needs quantitative verification at Radu Calinescu  

E-Print Network [OSTI]

, performance and operating cost (e.g., energy consumption) of software. These techniques include model checkingSelf-adaptive software needs quantitative verification at runtime Radu Calinescu Department"#.&*#.+$ Figure 1: The world and the machine. [19, 30]. In contrast, several mathematically-based modelling

Paris-Sud XI, Université de

365

Self-assembling software generator  

DOE Patents [OSTI]

A technique to generate an executable task includes inspecting a task specification data structure to determine what software entities are to be generated to create the executable task, inspecting the task specification data structure to determine how the software entities will be linked after generating the software entities, inspecting the task specification data structure to determine logic to be executed by the software entities, and generating the software entities to create the executable task.

Bouchard, Ann M. (Albuquerque, NM); Osbourn, Gordon C. (Albuquerque, NM)

2011-11-25T23:59:59.000Z

366

Reducing Software Failures: Addressing the Ethical Risks of the Software Development By Don Gotterbarn  

E-Print Network [OSTI]

Reducing Software Failures: Addressing the Ethical Risks of the Software Development Lifecycle by software developers. This process also is incorporated into a software development life cycle. A tool to develop Software Development Impact Statements is also discussed. INTRODUCTION Software developers

De Montfort University

367

Response of precipitation extremes to idealized global warming in an aqua-planet climate model: Towards robust projection across different horizontal resolutions  

SciTech Connect (OSTI)

Current climate models produce quite heterogeneous projections for the responses of precipitation extremes to future climate change. To help understand the range of projections from multimodel ensembles, a series of idealized 'aquaplanet' Atmospheric General Circulation Model (AGCM) runs have been performed with the Community Atmosphere Model CAM3. These runs have been analysed to identify the effects of horizontal resolution on precipitation extreme projections under two simple global warming scenarios. We adopt the aquaplanet framework for our simulations to remove any sensitivity to the spatial resolution of external inputs and to focus on the roles of model physics and dynamics. Results show that a uniform increase of sea surface temperature (SST) and an increase of low-to-high latitude SST gradient both lead to increase of precipitation and precipitation extremes for most latitudes. The perturbed SSTs generally have stronger impacts on precipitation extremes than on mean precipitation. Horizontal model resolution strongly affects the global warming signals in the extreme precipitation in tropical and subtropical regions but not in high latitude regions. This study illustrates that the effects of horizontal resolution have to be taken into account to develop more robust projections of precipitation extremes.

Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L.; Olson, J.G.

2011-04-15T23:59:59.000Z

368

Software Framework for Advanced Power Plant Simulations  

SciTech Connect (OSTI)

This report summarizes the work accomplished during the Phase II development effort of the Advanced Process Engineering Co-Simulator (APECS). The objective of the project is to develop the tools to efficiently combine high-fidelity computational fluid dynamics (CFD) models with process modeling software. During the course of the project, a robust integration controller was developed that can be used in any CAPE-OPEN compliant process modeling environment. The controller mediates the exchange of information between the process modeling software and the CFD software. Several approaches to reducing the time disparity between CFD simulations and process modeling have been investigated and implemented. These include enabling the CFD models to be run on a remote cluster and enabling multiple CFD models to be run simultaneously. Furthermore, computationally fast reduced-order models (ROMs) have been developed that can be 'trained' using the results from CFD simulations and then used directly within flowsheets. Unit operation models (both CFD and ROMs) can be uploaded to a model database and shared between multiple users.

John Widmann; Sorin Munteanu; Aseem Jain; Pankaj Gupta; Mark Moales; Erik Ferguson; Lewis Collins; David Sloan; Woodrow Fiveland; Yi-dong Lang; Larry Biegler; Michael Locke; Simon Lingard; Jay Yun

2010-08-01T23:59:59.000Z

369

JSATS Decoder Software Manual  

SciTech Connect (OSTI)

The Juvenile Salmon Acoustic Telemetry System (JSATS) Decoder is a software application that converts a digitized acoustic signal (a waveform stored in the .bwm file format) into a list of potential JSATS Acoustic MicroTransmitter (AMT) tagcodes along with other data about the signal including time of arrival and signal to noise ratios (SNR). This software is capable of decoding single files, directories, and viewing raw acoustic waveforms. When coupled with the JSATS Detector, the Decoder is capable of decoding in Ďreal-timeí and can also provide statistical information about acoustic beacons placed within receive range of hydrophones within a JSATS array. This document details the features and functionality of the software. The document begins with software installation instructions (section 2), followed in order by instructions for decoder setup (section 3), decoding process initiation (section 4), then monitoring of beacons (section 5) using real-time decoding features. The last section in the manual describes the beacon, beacon statistics, and the results file formats. This document does not consider the raw binary waveform file format.

Flory, Adam E.; Lamarche, Brian L.; Weiland, Mark A.

2013-05-01T23:59:59.000Z

370

Software Engineering Course Notes  

E-Print Network [OSTI]

of too many managers is to chase away good people. 1. These roles may be split between technical with a manager. Managers have three roles in software development1: · people management · productivity management personnel research, Kristiansand, Norway. #12;22 Management Managing people Good people management

Damon, Craig A.

371

Software Carpentry: Lessons Learned  

E-Print Network [OSTI]

Over the last 15 years, Software Carpentry has evolved from a week-long training course at the US national laboratories into a worldwide volunteer effort to raise standards in scientific computing. This article explains what we have learned along the way the challenges we now face, and our plans for the future.

Greg Wilson

2014-01-29T23:59:59.000Z

372

Software Carpentry: Lessons Learned  

E-Print Network [OSTI]

Over the last 15 years, Software Carpentry has evolved from a week-long training course at the US national laboratories into a worldwide volunteer effort to raise standards in scientific computing. This article explains what we have learned along the way the challenges we now face, and our plans for the future.

Wilson, Greg

2013-01-01T23:59:59.000Z

373

IBM Software Providesacomprehensivesolutionfor  

E-Print Network [OSTI]

, companies must make sure that they're delivering products that meet their customers' requirements while companies address the challenges of embedded software development and delivery-- from initial product products, services and best practices to help companies define and manage their product development

374

The Software Invention Cube: a Classification Scheme for Software Inventions  

E-Print Network [OSTI]

engineering lifecycle, software patents, IPR on software. 1 #12;1 Background As part of a three year European was formulated for an IPR-based software engineering life cycle and it was argued that only when an IPR licensing as well as IPR defense is possible. Further an extensive discussion was given regarding

Klint, Paul

375

Global Warming  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet Assistance GetGiantOn The VergeGlobal Threat1 Global

376

Measurement and Simulation of High-Performance Packet Processing in Software Routers  

E-Print Network [OSTI]

Measurement and Simulation of High-Performance Packet Processing in Software Routers Torsten Meyer1 Terms--measurement, simulation, intra-node model, re- source contention, model validation, software in comparison with hardware developments, software solutions are preferred in many scenarios. While

Carle, Georg

377

DuoTracker: Tool Support for Software Defect Data Collection and Analysis  

E-Print Network [OSTI]

evaluate their process using either the Capability Maturity Model (CMM) [3] or the ISO 9001 standards [4 software processes. Keywords--software defects; software anomalies; defect classification; PSP; CMM; IS0-9001 is then compared against the quality models of CMM or IS0 9001. There are also improvement methods such as IDEAL [5

Dascalu, Sergiu

378

Collaborative learning in software development  

E-Print Network [OSTI]

fields such as software process improvement, team research, organizational learning, organization scienceCollaborative learning in software development: An investigation of characteristics, prerequisites and Technology #12;[ii] Abstract Collaborative learning integrates individual and collective learning

Langseth, Helge

379

Systems Engineering Introduction to Software Quality Management  

E-Print Network [OSTI]

for quality management ISO 9001:2000 is a generic model of the quality process; ISO 9001:2008 clarifies ISO 9001:2000 ISO 9001:2008 applicable to any organisation that designs, develops and maintains products (or services) ISO 9000-3 interprets 9001 for software dev. 12 Features of ISO 9001:2008 Organisational

Bryson, Joanna J.

380

Compositional Algorithmic Verification of Software Product Lines  

E-Print Network [OSTI]

, and Siavash Soleimanifard2 1 Technische Universit¨at Braunschweig, Germany i.schaefer@tu-braunschweig.de 2 Royal Institute of Technology, Stockholm, Sweden {dilian,siavashs}@csc.kth.se Abstract. Software product expressiveness and a clean and simple model suitable for compositional verification. We generalize a previously

Gurov, Dilian

Note: This page contains sample records for the topic "modeling software global" 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

Using Simulation to Evaluate Global Software Development Task Allocation Strategies  

E-Print Network [OSTI]

such as planning and controlling activities ¬≠ Control Planning Control Workforce Needed Human Resource Workforce adjustments to the schedule or the work rate are needed ¬≠ Planning ¬Ľ Monitors and identifies the workforce modules HRn PDn QAn MPn Defect Rates Workforce Available Productivity ¬≠ Human Resource(HR) deals

Bae, Doo-Hwan

382

Software Discovery at San Ramon | GE Global Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment ofat Home |EMSLTexas A&MTechnology

383

Monitoring Software Reliability using Statistical Process control: An MMLE approach  

E-Print Network [OSTI]

This paper consider an MMLE (Modified Maximum Likelihood Estimation) based scheme to estimate software reliability using exponential distribution. The MMLE is one of the generalized frameworks of software reliability models of Non Homogeneous Poisson Processes (NHPPs). The MMLE gives analytical estimators rather than an iterative approximation to estimate the parameters. In this paper we proposed SPC (Statistical Process Control) Charts mechanism to determine the software quality using inter failure times data. The Control charts can be used to measure whether the software process is statistically under control or not.

Prasad, R Satya; Kantam, R R L

2011-01-01T23:59:59.000Z

384

4, 40694124, 2007 Global-scale  

E-Print Network [OSTI]

into evapotranspiration and total runoff. We estimate that global groundwater recharge was 12 666 km3 /yr for the climateHESSD 4, 4069­4124, 2007 Global-scale modeling of groundwater recharge P. D¨oll and K. Fiedler System Sciences Global-scale modeling of groundwater recharge P. D¨oll and K. Fiedler Institute

Boyer, Edmond

385

E-Print Network 3.0 - analysis software carimas Sample Search...  

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

Driver models developed over the last decade tend to be more... is the 1998 Jeep Cherokee. The mathematical model is created using the TruckSim software produced......

386

Software Engineering Craig A. Damon  

E-Print Network [OSTI]

) greenfield vs. brownfield project features #12;Software EngineeringCIS4150-1 20 many roles contribute to s

Damon, Craig A.

387

Software Patent Litigation ABA Section of Litigation  

E-Print Network [OSTI]

1 Software Patent Litigation ABA Section of Litigation Intellectual Property Litigation Committee............................................................ 2 II. Infringement issues specific to software patents Relating to Software Patents.........................................................15 POSSIBLE ISSUES

Shamos, Michael I.

388

Knowware: the third star after Hardware and Software  

E-Print Network [OSTI]

This book proposes to separate knowledge from software and to make it a commodity that is called knowware. The architecture, representation and function of Knowware are discussed. The principles of knowware engineering and its three life cycle models: furnace model, crystallization model and spiral model are proposed and analyzed. Techniques of software/knowware co-engineering are introduced. A software component whose knowledge is replaced by knowware is called mixware. An object and component oriented development schema of mixware is introduced. In particular, the tower model and ladder model for mixware development are proposed and discussed. Finally, knowledge service and knowware based Web service are introduced and compared with Web service. In summary, knowware, software and hardware should be considered as three equally important underpinnings of IT industry. Ruqian Lu is a professor of computer science of the Institute of Mathematics, Academy of Mathematics and System Sciences. He is a fellow of Chin...

Lu, Ruqian

2007-01-01T23:59:59.000Z

389

A Genetic Algorithm Approach to Focused Software Usage Testing  

E-Print Network [OSTI]

A Genetic Algorithm Approach to Focused Software Usage Testing Robert M. Patton, Annie S. Wu Orlando, FL, U.S.A. ABSTRACT Because software system testing typically consists of only a very small the test results from a limited amount of testing based on high-level usage models. It can also be very

Wu, Annie S.

390

Ideas for Security Assurance in Security Critical Software using Modelica  

E-Print Network [OSTI]

Ideas for Security Assurance in Security Critical Software using Modelica David Broman, Peter critical software. Modelica is a modern, strongly typed, de- clarative, and object-oriented language assurance, by expanding the scope of Modelica into also becoming a declarative modeling language for other

Zhao, Yuxiao

391

Inventory management with dynamic Bayesian network software systems  

E-Print Network [OSTI]

Inventory management with dynamic Bayesian network software systems Mark Taylor1 and Charles Fox2 1.fox@sheffield.ac.uk Abstract. Inventory management at a single or multiple levels of a supply chain is usually performed-the-shelf graphical software systems. We show how such sys- tems may be deployed to model a simple inventory problem

Barker, Jon

392

IBM Software Design and development  

E-Print Network [OSTI]

IBM Software Design and development Thought Leadership White Paper Disciplined Agile Delivery software development paradigm. This trend is also echoed in other industry studies, including one con expensive and risky. It is time for a new genera- tion of agile process framework. #12;3IBM Software Here

Balmelli, Laurent

393

2.5D global-disk oscillation models of the Be shell star {\\zeta} Tauri I. Spectroscopic and polarimetric analysis  

E-Print Network [OSTI]

Context. Various Be stars exhibit intensity variations of the violet and red emission peaks in their HI lines observed in emission. This so-called $V/R$ phenomenon is usually explained by the precession of a one-armed spiral density perturbation in the circumstellar disk. That global-disk oscillation scenario was confirmed, both observationally and theoretically, in the previous series of two papers analyzing the Be shell star {\\zeta} Tauri. The vertically averaged (2D) global-disk oscillation model used at the time was able to reproduce the $V/R$ variations observed in H{\\alpha}, as well as the spatially resolved interferometric data from AMBER/VLTI. Unfortunately, that model failed to reproduce the $V/R$ phase of Br15 and the amplitude of the polarization variation, suggesting that the inner disk structure predicted by the model was incorrect. Aims. The first aim of the present paper is to quantify the temporal variations of the shell-line characteristics of {\\zeta} Tauri. The second aim is to better unders...

Escolano, C; Okazaki, A T; Rivinius, T; Baade, D; Stefl, S

2015-01-01T23:59:59.000Z

394

Internal dosimetry software comparison  

E-Print Network [OSTI]

(ICRP) published in 1979 provided an improved approach for the assessment of internal dose. The ICRP recommendations were implemented in federal regulations promulgated by the Nuclear Regulatory Commission (NRC) in the Code of Federal Regulations (10... in the assessment of internal dose has led to the development of various computer software. In this study, several internal dosimetry codes were examined using a standard set of benchmark problems incorporating authentic exposure data. Personal computer...

Fulmer, Judith Renee

1992-01-01T23:59:59.000Z

395

SGE: Software Presentation  

E-Print Network [OSTI]

: Electric demand analysis -> Case study Groupe ? Technologie, Hydro-Qu?bec18 Dashboard : Electric demand analysis -> Case study 10 19 Groupe ? Technologie, Hydro-Qu?bec Future developments > Improving automatic mapping of the HVAC system...1 Presented by: Herv? Frank Nouanegue Team: Ahmed Daoud Karine Lavigne Alain Poulin Andr? Charette Sylvain Lahaie Simon Sansregret Guy Desbiens ?SGE? Software presentation 2 Groupe ? Technologie, Hydro-Qu?bec SGE: it means...

Nouanegue, H. F.; Daoud, A.; Lavigne, K.; Poulin, A.; Charette, A.; Lahala, S.; Sansregret, S.; Desbiens, G.

2013-01-01T23:59:59.000Z

396

Global Optimization of Chemical Reactors and Kinetic Optimization  

E-Print Network [OSTI]

Model; 3-D; Monolith; Reactor; Optimization Introduction TheAngeles Global Optimization of Chemical Reactors and KineticGlobal Optimization of Chemical Reactors and Kinetic

ALHUSSEINI, ZAYNA ISHAQ

2013-01-01T23:59:59.000Z

397

Review of Quantitative Software Reliability Methods  

SciTech Connect (OSTI)

The current U.S. Nuclear Regulatory Commission (NRC) licensing process for digital systems rests on deterministic engineering criteria. In its 1995 probabilistic risk assessment (PRA) policy statement, the Commission encouraged the use of PRA technology in all regulatory matters to the extent supported by the state-of-the-art in PRA methods and data. Although many activities have been completed in the area of risk-informed regulation, the risk-informed analysis process for digital systems has not yet been satisfactorily developed. Since digital instrumentation and control (I&C) systems are expected to play an increasingly important role in nuclear power plant (NPP) safety, the NRC established a digital system research plan that defines a coherent set of research programs to support its regulatory needs. One of the research programs included in the NRC's digital system research plan addresses risk assessment methods and data for digital systems. Digital I&C systems have some unique characteristics, such as using software, and may have different failure causes and/or modes than analog I&C systems; hence, their incorporation into NPP PRAs entails special challenges. The objective of the NRC's digital system risk research is to identify and develop methods, analytical tools, and regulatory guidance for (1) including models of digital systems into NPP PRAs, and (2) using information on the risks of digital systems to support the NRC's risk-informed licensing and oversight activities. For several years, Brookhaven National Laboratory (BNL) has worked on NRC projects to investigate methods and tools for the probabilistic modeling of digital systems, as documented mainly in NUREG/CR-6962 and NUREG/CR-6997. However, the scope of this research principally focused on hardware failures, with limited reviews of software failure experience and software reliability methods. NRC also sponsored research at the Ohio State University investigating the modeling of digital systems using dynamic PRA methods. These efforts, documented in NUREG/CR-6901, NUREG/CR-6942, and NUREG/CR-6985, included a functional representation of the system's software but did not explicitly address failure modes caused by software defects or by inadequate design requirements. An important identified research need is to establish a commonly accepted basis for incorporating the behavior of software into digital I&C system reliability models for use in PRAs. To address this need, BNL is exploring the inclusion of software failures into the reliability models of digital I&C systems, such that their contribution to the risk of the associated NPP can be assessed.

Chu, T.L.; Yue, M.; Martinez-Guridi, M.; Lehner, J.

2010-09-17T23:59:59.000Z

398

Global Health Research | 2 Global Health Research  

E-Print Network [OSTI]

Global Health Research | 2 Global Health Research Supporting researchers in low- and middle-income countries to carry out health- related research within their own countries. Gl bal Health #12;3 | Global Health Research #12;Global Health Research | 4 We are a global charitable foundation dedicated

Rambaut, Andrew

399

Information Visualization for Agile Software Development Teams  

E-Print Network [OSTI]

Information Visualization for Agile Software Development Teams Julia Paredes Department of Computer software development teams. The results of the systematic mapping show that Agile teams use visualization artifacts amongst team members. Keywords--Agile software development, information visualiza- tion, software

Maurer, Frank

400

Integrating agile practices into critical software development  

E-Print Network [OSTI]

Integrating agile practices into critical software development Katarzyna Lukasiewicz, Janusz Górski. In this text we describe our research towards introducing agile practices into critical software development processes Keywords-- safety-critical software; agile practices; software development; process improvement

Boyer, Edmond

Note: This page contains sample records for the topic "modeling software global" 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

Diagnosis of the Marine Low Cloud Simulation in the NCAR Community Earth System Model (CESM) and the NCEP Global Forecast System (GFS)-Modular Ocean Model v4 (MOM4) coupled model  

SciTech Connect (OSTI)

We present a diagnostic analysis of the marine low cloud climatology simulated by two state-of-the-art coupled atmosphere-ocean models: the NCAR Community Earth System Model (CESM) and the NCEP Global Forecasting System (GFS). In both models, the shallow convection and boundary layer turbulence parameterizations have been recently updated: both models now use a mass-flux scheme for the parameterization of shallow convection, and a turbulence parameterization capable of handling Stratocumulus (Sc)-topped Planetary Boundary Layers (PBLs). For shallow convection, both models employ a convective trigger function based on the concept of convective inhibition and both include explicit convective overshooting/penetrative entrainment formulation. For Sc-topped PBL, both models treat explicitly turbulence mixing and cloud-top entrainment driven by cloud-top radiative cooling. Our focus is on the climatological transition from Sc to shallow Cumulus (Cu)-topped PBL in the subtropical eastern oceans. We show that in the CESM the coastal Sc-topped PBLs in the subtropical Eastern Pacific are well-simulated but the climatological transition from Sc to shallow Cu is too abrupt and happens too close to the coast. By contrast, in the GFS coupled simulation the coastal Sc amount and PBL depth are severely underestimated while the transition from Sc to shallow Cu is ≥delayed≤ and offshore Sc cover is too extensive in the subtropical Eastern Pacific. We discuss the possible connections between such differences in the simulations and differences in the parameterizations of shallow convection and boundary layer turbulence in the two models.

Xiao, Heng; Mechoso, C. R.; Sun, Rui; Han, J.; Pan, H. L.; Park, S.; Hannay, Cecile; Bretherton, Christopher S.; Teixeira, J.

2014-07-25T23:59:59.000Z

402

MODELS OF THE INTRACLUSTER MEDIUM WITH HEATING AND COOLING: EXPLAINING THE GLOBAL AND STRUCTURAL X-RAY PROPERTIES OF CLUSTERS  

E-Print Network [OSTI]

cooling or entropy injection (and/or redistribution) plays a central role in mediating the thermal in excess of observationally estab- lished limits. On the other hand, the simplest entropy-injection models consider models that marry radiative cooling with entropy injection, and confront model predictions

Balogh, Michael L.

403

Long range global warming  

SciTech Connect (OSTI)

This paper explores one of the causes of global warming that is often overlooked, the direct heating of the environment by engineering systems. Most research and studies of global warming concentrate on the modification that is occurring to atmospheric air as a result of pollution gases being added by various systems; i.e., refrigerants, nitrogen oxides, ozone, hydrocarbons, halon, and others. This modification affects the thermal radiation balance between earth, sun and space, resulting in a decrease of radiation outflow and a slow rise in the earth`s steady state temperature. For this reason the solution to the problem is perceived as one of cleaning up the processes and effluents that are discharged into the environment. In this paper arguments are presented that suggest, that there is a far more serious cause for global warming that will manifest itself in the next two or three centuries; direct heating from the exponential growth of energy usage by humankind. Because this is a minor contributor to the global warming problem at present, it is overlooked or ignored. Energy use from the combustion of fuels and from the output of nuclear reactions eventually is manifest as warming of the surroundings. Thus, as energy is used at an ever increasing rate the consequent global warming also increases at an ever increasing rate. Eventually this rate will become equal to a few percent of solar radiation. When this happens the earth`s temperature will have risen by several degrees with catastrophic results. The trends in world energy use are reviewed and some mathematical models are presented to suggest future scenarios. These models can be used to predict when the global warming problem will become undeniably apparent, when it will become critical, and when it will become catastrophic.

Rolle, K.C.; Pulkrabek, W.W.; Fiedler, R.A. [Univ. of Wisconsin, Platteville, WI (United States)

1995-12-31T23:59:59.000Z

404

FLOWTRAN-TF software design  

SciTech Connect (OSTI)

FLOWTRAN-TF was created to analyze an individual Mk22 fuel assembly during a large break Loss Of Coolant Accident (LOCA) scenario involving the Savannah River Site K-reactor after the initial few seconds of the transient. During the initial few seconds reactor cooling is limited by the static or Ledinegg flow instability phenomenon. The predecessor FLOWTRAN code was developed to analyze this portion of a LOCA. In the several seconds following the break, a significant fraction of the reactor coolant inventory leaks out the break, Emergency Cooling System (ECS) flow is initiated, and air enters the primary coolant circulation loops. Reactor fuel assemblies are cooled by a low flowrate air-water downflow. Existing commercial nuclear industry thermal-hydraulic codes were judged inadequate for detailed modeling of a Mk22 fuel assembly because the application involves a ribbed annular geometry, low pressure, downflow and an air-water mixture. FLOWTRAN-TF is a two-phase thermal-hydraulics code of similar technology to existing commercial codes such as RELAP and TRAC but customized for Savannah River Site applications. The main features and capabilities of FLOWTRAN-TF are detailed Mk22 fuel assembly ribbed annular geometry; conjugate heat transfer; detailed neutronic power distribution; three-dimensional heat conduction in Mk22 fuel and target tubes; two-dimensional coolant flow in channels (axial, azimuthal); single-phase and/or two-phase fluid (gas, liquid and/or gas-liquid); two-component (air, water); constitutive models applicable to low pressure air-water downflow in ribbed annular channels. The design of FLOWTRAN-TF is described in detail in this report which serves as the Software Design Report in accordance with Quality Assurance Procedure IV-4, Rev. 0 Software Design and Implementation'' in the 1Q34 manual.

Aleman, S.E.; Flach, G.P.; Hamm, L.L.; Lee, S.Y.; Smith, F.G. III.

1993-02-01T23:59:59.000Z

405

FLOWTRAN-TF software design  

SciTech Connect (OSTI)

FLOWTRAN-TF was created to analyze an individual Mk22 fuel assembly during a large break Loss Of Coolant Accident (LOCA) scenario involving the Savannah River Site K-reactor after the initial few seconds of the transient. During the initial few seconds reactor cooling is limited by the static or Ledinegg flow instability phenomenon. The predecessor FLOWTRAN code was developed to analyze this portion of a LOCA. In the several seconds following the break, a significant fraction of the reactor coolant inventory leaks out the break, Emergency Cooling System (ECS) flow is initiated, and air enters the primary coolant circulation loops. Reactor fuel assemblies are cooled by a low flowrate air-water downflow. Existing commercial nuclear industry thermal-hydraulic codes were judged inadequate for detailed modeling of a Mk22 fuel assembly because the application involves a ribbed annular geometry, low pressure, downflow and an air-water mixture. FLOWTRAN-TF is a two-phase thermal-hydraulics code of similar technology to existing commercial codes such as RELAP and TRAC but customized for Savannah River Site applications. The main features and capabilities of FLOWTRAN-TF are detailed Mk22 fuel assembly ribbed annular geometry; conjugate heat transfer; detailed neutronic power distribution; three-dimensional heat conduction in Mk22 fuel and target tubes; two-dimensional coolant flow in channels (axial, azimuthal); single-phase and/or two-phase fluid (gas, liquid and/or gas-liquid); two-component (air, water); constitutive models applicable to low pressure air-water downflow in ribbed annular channels. The design of FLOWTRAN-TF is described in detail in this report which serves as the Software Design Report in accordance with Quality Assurance Procedure IV-4, Rev. 0 ``Software Design and Implementation`` in the 1Q34 manual.

Aleman, S.E.; Flach, G.P.; Hamm, L.L.; Lee, S.Y.; Smith, F.G. III

1993-02-01T23:59:59.000Z

406

Software Quality Assurance Subcommittee : Guidelines for Requirements...  

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

Software Quality Assurance Subcommittee : Guidelines for Requirements Management Software Quality Assurance Subcommittee : Guidelines for Requirements Management Requirements...

407

SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM | Department of...  

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

PROGRAM SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM Training Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM More Documents & Publications Quality Assurance Checklist...

408

Global parameter optimization of Mather type plasma focus in the framework of the Gratton-Vargas two-dimensional snowplow model  

E-Print Network [OSTI]

Dense Plasma Focus (DPF) is known to produce highly energetic ions, electrons and plasma environment which can be used for breeding of short-lived isotopes, plasma nanotechnology and other material processing applications. Commercial utilization of DPF in such areas would need a design tool which can be deployed in an automatic search for the best possible device configuration for a given application. The recently revisited [S K H Auluck, Physics of Plasmas 20, 112501 (2013)] Gratton-Vargas (GV) two-dimensional analytical snowplow model of plasma focus provides a numerical formula for dynamic inductance of a Mather type plasma focus fitted to thousands of automated computations, which enables construction of such design tool. This inductance formula is utilized in the present work to explore global optimization, based on first-principles optimality criteria, in a 4-dimensional parameter-subspace of the zero-resistance GV model. The optimization process is shown to reproduce the empirically observed constancy ...

Auluck, S K H

2014-01-01T23:59:59.000Z

409

NERSC Software Downloads  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challengeMultiscaleLogos NERSC Logos NERSC logos arePlayed Workflow Software

410

NERSC Software List  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challengeMultiscaleLogos NERSC Logos NERSC logos arePlayed Workflow Software

411

Sector 1 - Software  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) SrEvaluating the Seasonalsw ' b 0 % bP. May, G.J.APS Software

412

JGI Available Software  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformation for andFuel-Efficient EnginesJ.Software NERSC/JGI

413

Euclid Software and Tools  

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

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

414

PDSF Software and Tools  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeedingOptimizingTools Software and Tools Chos Chos is used to

415

Software Carpentry Bootcamp  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future | Department of How DoMitchSoftlySoftware

416

Software Defined Networking for  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future | Department of How DoMitchSoftlySoftware

417

Software | Argonne National Laboratory  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,Future | Department of HowSoftware speeds

418

iEMSs 2008:International Congress on Environmental Modelling and Software Integrating Sciences and Information Technology for Environmental Assessment and Decision Making  

E-Print Network [OSTI]

to be based on results from integrated Earth System Models (ESMs), C-LAMP is helping to establish the metadata

Hoffman, Forrest M.

419

Understanding Global Capitalism  

E-Print Network [OSTI]

sociology; globalization; political economy; development;economy fueled through 700 billion dollars injected into globalizationGlobalization Studies, also called CGS. I would economy and

Robinson, William I.

2008-01-01T23:59:59.000Z

420

Review: Global Climate Change  

E-Print Network [OSTI]

introduction to global climate change, the greenhouseReview: Global Climate Change: A Primer By Orrin H PilkeyPilkey, Keith C. Global Climate Change: a primer. Durham,

Smith, Jennifer

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "modeling software global" 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

Benchmark experiments with global climate models applicable to extra-solar gas giant planets in the shallow atmosphere approximation  

E-Print Network [OSTI]

The growing field of exoplanetary atmospheric modelling has seen little work on standardised benchmark tests for its models, limiting understanding of the dependence of results on specific models and conditions. With spatially resolved observations as yet difficult to obtain, such a test is invaluable. Although an intercomparison test for models of tidally locked gas giant planets has previously been suggested and carried out, the data provided were limited in terms of comparability. Here, the shallow PUMA model is subjected to such a test, and detailed statistics produced to facilitate comparison, with both time means and the associated standard deviations displayed, removing the time dependence and providing a measure of the variability. Model runs have been analysed to determine the variability between resolutions, and the effect of resolution on the energy spectra studied. Superrotation is a robust and reproducible feature at all resolutions.

Bending, V L; Kolb, U

2012-01-01T23:59:59.000Z

422

Software Factories :Software Factories : SoftwareSoftware ProductProduct LinesLines withwith ModelModel  

E-Print Network [OSTI]

not work in practicepportunistic reuse does not work in practice 4 ¬≠¬≠ As in automotive and other industries, build on the notionAs in automotive and other industries, build on the notion ofof Product Line architectureproduct architecture derived from PLAderived from PLA ¬Ľ¬Ľ instantiated andinstantiated and configured

423

automated classification software: Topics by E-print Network  

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

while it is easy to use and efficient. Tim Menzies 45 Model-driven Automated Software FMEA Neal Snooke, PhD, Aberystwyth University Computer Technologies and Information Sciences...

424

CISC 327* Software Quality Assurance! Course Summary and Study Guide!  

E-Print Network [OSTI]

parameters. ! ! What is Quality Assurance? - software quality assurance, the three general principles of QA, design, implementation and testing, operation and ! ! ! maintenance, retirement. Drawbacks Oriented Development Model - phases: analysis, design, implementation. OO analysis - ! ! ! the essential

Cordy, James R.

425

Global warming and global dioxide emission: An empirical study  

SciTech Connect (OSTI)

In this paper, the dynamic relationship between global surface temperature (global warming) and global carbon dioxide emission (CO{sub 2}) is modelled and analyzed by causality and spectral analysis in the time domain and frequency domain, respectively. Historical data of global CO{sub 2} emission and global surface temperature anomalies over 129 years from 1860-1988 are used in this study. The causal relationship between the two phenomena is first examined using the Sim and Granger causality test in the time domain after the data series are filtered by ARIMA models. The Granger causal relationship is further scrutinized and confirmed by cross-spectral and multichannel spectral analysis in the frequency domain. The evidence found from both analyses proves that there is a positive causal relationship between the two variables. The time domain analysis suggests that Granger causality exists between global surface temperature and global CO{sub 2} emission. Further, CO{sub 2} emission causes the change in temperature. The conclusions are further confirmed by the frequency domain analysis, which indicates that the increase in CO{sub 2} emission causes climate warming because a high coherence exists between the two variables. Furthermore, it is proved that climate changes happen after an increase in CO{sub 2} emission, which confirms that the increase in CO{sub 2} emission does cause global warming. 27 refs., 10 figs., 5 tabs.

Linyan Sun [Xian Jiaotong Univ., Shaanxi (China); Wang, M. [Saint Mary`s Univ., Halifax, Nova Scotia (Canada)

1996-04-01T23:59:59.000Z

426

Experience with Software Architectures and Configured Software Descriptions  

E-Print Network [OSTI]

our experience in the specification, design, implementation and evolution of software engineering a commercial DBMS). However, experience with the explicit specification of the architctural design of large

Scacchi, Walt

427

Global climate feedbacks  

SciTech Connect (OSTI)

The important physical, chemical, and biological events that affect global climate change occur on a mesoscale -- requiring high spatial resolution for their analysis. The Department of Energy has formulated two major initiatives under the US Global Change Program: ARM (Atmospheric Radiation Measurements), and CHAMMP (Computer Hardware Advanced Mathematics and Model Physics). ARM is designed to use ground and air-craft based observations to document profiles of atmospheric composition, clouds, and radiative fluxes. With research and models of important physical processes, ARM will delineate the relationships between trace gases, aerosol and cloud structure, and radiative transfer in the atmosphere, and will improve the parameterization of global circulation models. The present GCMs do not model important feedbacks, including those from clouds, oceans, and land processes. The purpose of this workshop is to identify such potential feedbacks, to evaluate the uncertainties in the feedback processes (and, if possible, to parameterize the feedback processes so that they can be treated in a GCM), and to recommend research programs that will reduce the uncertainties in important feedback processes. Individual reports are processed separately for the data bases.

Manowitz, B.

1990-10-01T23:59:59.000Z

428

Software Reliability Estimation under Uncertainty: Generalization of the Method of Moments  

E-Print Network [OSTI]

Software Reliability Estimation under Uncertainty: Generalization of the Method of Moments Katerina Traditionally, reliability models of component-based software systems compute the point estimate of system reli affect the estimates of system reliability. In this paper we focus on uncertainty analysis in software

Goseva-Popstojanova, Katerina

429

Unit Testing of Energy Consumption of Software Libraries Adel Noureddine1,2  

E-Print Network [OSTI]

Unit Testing of Energy Consumption of Software Libraries Adel Noureddine1,2 , Romain Rouvoy1. In this paper, we therefore introduce JalenUnit, a software framework that infers the energy consumption model, and comparing software libraries against their energy consumption. Categories and Subject Descriptors D.2

Boyer, Edmond

430

A Systems-Theoretic Approach to Safety in Software-Intensive Nancy G. Leveson  

E-Print Network [OSTI]

and for non-technical aspects of safety such as organizational culture and human decision-making. This paperA Systems-Theoretic Approach to Safety in Software-Intensive Systems Nancy G. Leveson Abstract of the approach. Keywords: software safety, system safety, accident models, software engineering 1 Introduction

Leveson, Nancy

431

Academy for Global Engagement  

E-Print Network [OSTI]

Academy for Global Engagement 2013-2014 Global Fellows #12;Meredith Gore and Wildlife #12;Global Research Interests · risk percepHon and public support and Agricultural Engineering #12;Global Research Interests · catalyHc conversion of biomass

432

global warming's six indias  

E-Print Network [OSTI]

global warming's six indias: An Audience Segmentation Analysis #12;Global Warming's Six Indias 1............................................................................................................................................20 2. Global Warming Beliefs and Attitudes................................................................................ 21 Knowledge about global warming varies widely by group

Haller, Gary L.

433

Observed Characteristics of Clouds and Precipitating Systems Associated with the Tropical Circulation in Global Models and Reanalyses  

E-Print Network [OSTI]

This dissertation presents a series of work related to the representation of the Hadley circulation (HC) in atmospheric reanalyses and general circulation models (GCMs), with connections to the underlying tropical and subtropical cloud systems...

Stachnik, Justin Paul

2013-03-25T23:59:59.000Z

434

Past and Future Effects of Ozone on Net Primary Production and Carbon Sequestration Using a Global Biogeochemical Model  

E-Print Network [OSTI]

Exposure of plants to ozone inhibits photosynthesis and therefore reduces vegetation production and carbon sequestration. Simulations with the Terrestrial Ecosystem Model (TEM) for the historical period (1860-1995) show ...

Felzer, Benjamin Seth.

435

A Steady-State Picture of Solar Wind Acceleration and Charge State Composition Derived from a Global Wave-Driven MHD Model  

E-Print Network [OSTI]

The higher charge states found in slow ($<$400km s$^{-1}$) solar wind streams compared to fast streams have supported the hypothesis that the slow wind originates in closed coronal loops, and released intermittently through reconnection. Here we examine whether a highly ionized slow wind can also form along steady and open magnetic field lines. We model the steady-state solar atmosphere using AWSoM, a global magnetohydrodynamic model driven by Alfv{\\'e}n waves, and apply an ionization code to calculate the charge state evolution along modeled open field lines. This constitutes the first charge states calculation covering all latitudes in a realistic magnetic field. The ratios $O^{+7}/O^{+6}$ and $C^{+6}/C^{+5}$ are compared to in-situ Ulysses observations, and are found to be higher in the slow wind, as observed; however, they are under-predicted in both wind types. The modeled ion fractions of S, Si, and Fe are used to calculate line-of-sight intensities, which are compared to EIS observations above a cor...

Oran, Rona; van der Holst, Bart; Lepri, Susan T; Frazin, Alberto M VŠsquez Federico A Nuevo Richard; Manchester, Ward B; Sokolov, Igor V; Gombosi, Tamas I

2014-01-01T23:59:59.000Z

436

Energy Tracking Software Platform  

SciTech Connect (OSTI)

Acceleration has created an interactive energy tracking and visualization platform that supports decreasing electric, water, and gas usage. Homeowners have access to tools that allow them to gauge their use and track progress toward a smaller energy footprint. Real estate agents have access to consumption data, allowing for sharing a comparison with potential home buyers. Home builders have the opportunity to compare their neighborhood's energy efficiency with competitors. Home energy raters have a tool for gauging the progress of their clients after efficiency changes. And, social groups are able to help encourage members to reduce their energy bills and help their environment. EnergyIT.com is the business umbrella for all energy tracking solutions and is designed to provide information about our energy tracking software and promote sales. CompareAndConserve.com (Gainesville-Green.com) helps homeowners conserve energy through education and competition. ToolsForTenants.com helps renters factor energy usage into their housing decisions.

Ryan Davis; Nathan Bird; Rebecca Birx; Hal Knowles

2011-04-04T23:59:59.000Z

437

Evaluation of cloud fraction and its radiative effect simulated by IPCC AR4 global models against ARM surface observations  

SciTech Connect (OSTI)

Cloud Fraction (CF) is the dominant modulator of radiative fluxes. In this study, we evaluate CF simulations in the IPCC AR4 GCMs against ARM ground measurements, with a focus on the vertical structure, total amount of cloud and its effect on cloud shortwave transmissivity, for both inter-model deviation and model-measurement discrepancy. Our intercomparisons of three CF or sky-cover related dataset reveal that the relative differences are usually less than 10% (5%) for multi-year monthly (annual) mean values, while daily differences are quite significant. The results also show that the model-observation and the inter-model deviations have a similar magnitude for the total CF (TCF) and the normalized cloud effect, and they are twice as large as the surface downward solar radiation and cloud transmissivity. This implies that the other cloud properties, such as cloud optical depth and height, have a similar magnitude of disparity to TCF among the GCMs, and suggests that a better agreement among the GCMs in solar radiative fluxes could be the result of compensating errors in either cloud vertical structure, cloud optical depth or cloud fraction. Similar deviation pattern between inter-model and model-measurement suggests that the climate models tend to generate larger bias against observations for those variables with larger inter-model deviation. The simulated TCF from IPCC AR4 GCMs are very scattered through all seasons over three ARM sites: Southern Great Plains (SGP), Manus, Papua New Guinea and North Slope of Alaska (NSA). The GCMs perform better at SGP than at Manus and NSA in simulating the seasonal variation and probability distribution of TCF; however, the TCF in these models is remarkably underpredicted and cloud transmissivity is less susceptible to the change of TCF than the observed at SGP. Much larger inter-model deviation and model bias are found over NSA than the other sites in estimating the TCF, cloud transmissivity and cloud-radiation interaction, suggesting that the Arctic region continues to challenge cloud simulations in climate models. Most of the GCMs tend to underpredict CF and fail to capture the seasonal variation of CF at middle and low levels in the tropics. The high altitude CF is much larger in the GCMs than the observation and the inter-model variability of CF also reaches maximum at high levels in the tropics. Most of the GCMs tend to underpredict CF by 50-150% relative to the measurement average at low and middle levels over SGP. While the GCMs generally capture the maximum CF in the boundary layer and vertical variability, the inter-model deviation is largest near surface over the Arctic. The internal variability of CF simulated in ensemble runs with the same model is very minimal.

Qian, Yun; Long, Charles N.; Wang, Hailong; Comstock, Jennifer M.; McFarlane, Sally A.; Xie, Shaocheng

2012-02-17T23:59:59.000Z

438

When Is Free/Open Source Software Development Faster, Better, and Cheaper than Software Engineering?  

E-Print Network [OSTI]

development across different settings, or about what software processes, work practices, and organizational/OSS, they will need grounded models of the processes and practices of F/OSSD to allow effective investment an in-depth case study, to help develop such an understanding. The goal of this chapter is to determine

Scacchi, Walt

439

Approved Module Information for CS4670, 2014/5 Module Title/Name: Software Process and Management Module Code: CS4670  

E-Print Network [OSTI]

control, assurance and management systems; quality models and metrics; software management ? testing management: software cost estimation, software, COCOMO model Quality management: nature of quality; qualityApproved Module Information for CS4670, 2014/5 Module Title/Name: Software Process and Management

Neirotti, Juan Pablo

440

Comparison of optical model results from a microscopic SchrŲdinger approach to nucleon-nucleus elastic scattering with those from a global Dirac phenomenology  

E-Print Network [OSTI]

Comparisons are made between results of calculations for intermediate energy nucleon-nucleus scattering for 12C, 16O, 40Ca, 90Zr, and 208Pb, using optical potentials obtained from global Dirac phenomenology and from a microscopic Schr\\"odinger model. Differential cross sections and spin observables for scattering from the set of five nuclei at 65 MeV and 200 MeV have been studied to assess the relative merits of each approach. Total reaction cross sections from proton-nucleus and total cross sections from neutron-nucleus scattering have been evaluated and compared with data for those five targets in the energy range 20 MeV to 800 MeV. The methods of analyses give results that compare well with experimental data in those energy regimes for which the procedures are suited.

P. K. Deb; B. C. Clark; S. Hama; K. Amos; S. Karataglidis; E. D. Cooper

2005-04-29T23:59:59.000Z

Note: This page contains sample records for the topic "modeling software global" 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

SAPHIRE 8 Software Project Plan  

SciTech Connect (OSTI)

This project is being conducted at the request of the DOE and the NRC. The INL has been requested by the NRC to improve and maintain the Systems Analysis Programs for Hands-on Integrated Reliability Evaluation (SAPHIRE) tool set concurrent with the changing needs of the user community as well as staying current with new technologies. Successful completion will be upon NRC approved release of all software and accompanying documentation in a timely fashion. This project will enhance the SAPHIRE tool set for the user community (NRC, Nuclear Power Plant operations, Probabilistic Risk Analysis (PRA) model developers) by providing improved Common Cause Failure (CCF), External Events, Level 2, and Significance Determination Process (SDP) analysis capabilities. The SAPHIRE development team at the Idaho National Laboratory is responsible for successful completion of this project. The project is under the supervision of Curtis L. Smith, PhD, Technical Lead for the SAPHIRE application. All current capabilities from SAPHIRE version 7 will be maintained in SAPHIRE 8. The following additional capabilities will be incorporated: ē Incorporation of SPAR models for the SDP interface. ē Improved quality assurance activities for PRA calculations of SAPHIRE Version 8. ē Continue the current activities for code maintenance, documentation, and user support for the code.

Curtis L.Smith; Ted S. Wood

2010-03-01T23:59:59.000Z

442

Software quality is a crucial issue in a society that vitally depends on software systems. Software quality  

E-Print Network [OSTI]

ABSTRACT Software quality is a crucial issue in a society that vitally depends on software systems quality in development. If the top management of software dependent companies does not have effective software quality management. After giving a few examples for software quality in real life

Deissenboeck, Florian

443

Software and House Requirements Engineering  

E-Print Network [OSTI]

a requirements engineer who puts her knowledge of software construction together with her creativity to come upSoftware and House Requirements Engineering: Lessons Learned in Combatting Requirements Creep creativity to try to come up with a plan for a house that will meet the customer's requirements. The customer

Berry, Daniel M.

444

Global and local cancer risks after the Fukushima Nuclear Power Plant accident as seen from Chernobyl: A modeling study for  

E-Print Network [OSTI]

Chernobyl: A modeling study for radiocaesium (134 Cs & 137 Cs) Nikolaos Evangeliou a, , Yves Balkanski risks, prior to epidemiology, and compare them with those occurred after the Chernobyl accident the accident of Chernobyl. © 2013 Elsevier Ltd. All rights reserved. 1. Introduction Accidental releases

Mousseau, Timothy A.

445

Moving from software to solutions  

SciTech Connect (OSTI)

Like other industries, oil and gas companies are looking to computer-aided technologies to contribute to their bottom line. The question is, what can and should software vendors offer the oil and gas industry for them to achieve this goal? In order to answer this, the paper looks at the enablers of change that today's geoscience software vendors can exploit to meet these challenges, as well as at the future role of software vendors. The era of computer-aided exploration tools has somewhat changed. The oil and gas industry's concerns for cost-effectiveness demand a more holistic approach--geoscience software and services that optimize the reservoir's full life cycle. Recent advances in computing technologies and geoscience justify the oil and gas industry's expectations that software vendors deliver next-generation reservoir management solutions.

Weiss, E.

2000-02-01T23:59:59.000Z

446

ROSSBY WAVE INSTABILITY AT DEAD ZONE BOUNDARIES IN THREE-DIMENSIONAL RESISTIVE MAGNETOHYDRODYNAMICAL GLOBAL MODELS OF PROTOPLANETARY DISKS  

SciTech Connect (OSTI)

It has been suggested that the transition between magnetorotationally active and dead zones in protoplanetary disks should be prone to the excitation of vortices via Rossby wave instability (RWI). However, the only numerical evidence for this has come from alpha disk models, where the magnetic field evolution is not followed, and the effect of turbulence is parameterized by Laplacian viscosity. We aim to establish the phenomenology of the flow in the transition in three-dimensional resistive-magnetohydrodynamical models. We model the transition by a sharp jump in resistivity, as expected in the inner dead zone boundary, using the PENCIL CODE to simulate the flow. We find that vortices are readily excited in the dead side of the transition. We measure the mass accretion rate finding similar levels of Reynolds stress at the dead and active zones, at the {alpha} Almost-Equal-To 10{sup -2} level. The vortex sits in a pressure maximum and does not migrate, surviving until the end of the simulation. A pressure maximum in the active zone also triggers the RWI. The magnetized vortex that results should be disrupted by parasitical magneto-elliptic instabilities, yet it subsists in high resolution. This suggests that either the parasitic modes are still numerically damped or that the RWI supplies vorticity faster than they can destroy it. We conclude that the resistive transition between the active and dead zones in the inner regions of protoplanetary disks, if sharp enough, can indeed excite vortices via RWI. Our results lend credence to previous works that relied on the alpha-disk approximation, and caution against the use of overly reduced azimuthal coverage on modeling this transition.

Lyra, Wladimir; Mac Low, Mordecai-Mark, E-mail: wlyra@jpl.nasa.gov, E-mail: mordecai@amnh.org [Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York, NY 10024 (United States)

2012-09-01T23:59:59.000Z

447

Global Simulations of Ice nucleation and Ice Supersaturation with an Improved Cloud Scheme in the Community Atmosphere Model  

SciTech Connect (OSTI)

A process-based treatment of ice supersaturation and ice-nucleation is implemented in the National Center for Atmospheric Research (NCAR) Community Atmosphere Model (CAM). The new scheme is designed to allow (1) supersaturation with respect to ice, (2) ice nucleation by aerosol particles and (3) ice cloud cover consistent with ice microphysics. The scheme is implemented with a 4-class 2 moment microphysics code and is used to evaluate ice cloud nucleation mechanisms and supersaturation in CAM. The new model is able to reproduce field observations of ice mass and mixed phase cloud occurrence better than previous versions of the model. Simulations indicate heterogeneous freezing and contact nucleation on dust are both potentially important over remote areas of the Arctic. Cloud forcing and hence climate is sensitive to different formulations of the ice microphysics. Arctic radiative fluxes are sensitive to the parameterization of ice clouds. These results indicate that ice clouds are potentially an important part of understanding cloud forcing and potential cloud feedbacks, particularly in the Arctic.

Gettelman, A.; Liu, Xiaohong; Ghan, Steven J.; Morrison, H.; Park, Sungsu; Conley, Andrew; Klein, Stephen A.; Boyle, James; Mitchell, David; Li, J-L F.

2010-09-28T23:59:59.000Z

448

Self-assembled software and method of overriding software execution  

DOE Patents [OSTI]

A computer-implemented software self-assembled system and method for providing an external override and monitoring capability to dynamically self-assembling software containing machines that self-assemble execution sequences and data structures. The method provides an external override machine that can be introduced into a system of self-assembling machines while the machines are executing such that the functionality of the executing software can be changed or paused without stopping the code execution and modifying the existing code. Additionally, a monitoring machine can be introduced without stopping code execution that can monitor specified code execution functions by designated machines and communicate the status to an output device.

Bouchard, Ann M.; Osbourn, Gordon C.

2013-01-08T23:59:59.000Z

449

Global residential appliance standards  

SciTech Connect (OSTI)

In most countries, residential electricity consumption typically ranges from 20% to 40% of total electricity consumption. This energy is used for heating, cooling, refrigeration and other end-uses. Significant energy savings are possible if new appliance purchases are for models with higher efficiency than that of existing models. There are several ways to ensure or encourage such an outcome, for example, appliance rebates, innovative procurement, and minimum efficiency standards. This paper focuses on the latter approach. At the present time, the US is the only country with comprehensive appliance energy efficiency standards. However, many other countries, such as Australia, Canada, the European Community (EC), Japan and Korea, are considering enacting standards. The greatest potential impact of minimum efficiency standards for appliances is in the developing countries (e.g., China and India), where saturations of household appliances are relatively low but growing rapidly. This paper discusses the potential savings that could be achieved from global appliance efficiency standards for refrigerators and freezers. It also could be achieved from global appliance efficiency standards for refrigerators and freezers. It also discusses the impediments to establishing common standards for certain appliance types, such as differing test procedures, characteristics, and fuel prices. A methodology for establishing global efficiency standards for refrigerators and freezers is described.

Turiel, I.; McMahon, J.E. (Lawrence Berkeley Lab., CA (United States)); Lebot, B. (Agence Francaise pour la Maitrise de l'Energie, Valbonne (France))

1993-03-01T23:59:59.000Z

450

CS487 -Software Engineering Last Updated -04/11/02 Course Manager Dr. Ilene Burnstein, Associate Professor  

E-Print Network [OSTI]

, and software maintenance. Hands-on experience building a software system using the waterfall life cycle model. Students working in teams develop all life cycle deliverables: requirements document, specification/user needs. ∑ Select an appropriate life cycle and process model for development of a software product

Heller, Barbara

451

The comparison of four dynamic systems-based software packages: Translation and sensitivity analysis  

E-Print Network [OSTI]

The comparison of four dynamic systems-based software packages: Translation and sensitivity Wetness Energy Balance (SWEB) model for canopy surface wetness has been translated into four software pack of the model. √? 2005 Elsevier Ltd. All rights reserved. Keywords: Model comparison; Dynamic simulation; System

Vermont, University of

452

Software for precise tracking of cell proliferation  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer We developed software for analyzing cultured cells that divide as well as migrate. Black-Right-Pointing-Pointer The active contour model (Snakes) was used as the core algorithm. Black-Right-Pointing-Pointer The time backward analysis was also used for efficient detection of cell division. Black-Right-Pointing-Pointer With user-interactive correction functions, the software enables precise tracking. Black-Right-Pointing-Pointer The software was successfully applied to cells with fluorescently-labeled nuclei. -- Abstract: We have developed a multi-target cell tracking program TADOR, which we applied to a series of fluorescence images. TADOR is based on an active contour model that is modified in order to be free of the problem of locally optimal solutions, and thus is resistant to signal fluctuation and morphological changes. Due to adoption of backward tracing and addition of user-interactive correction functions, TADOR is used in an off-line and semi-automated mode, but enables precise tracking of cell division. By applying TADOR to the analysis of cultured cells whose nuclei had been fluorescently labeled, we tracked cell division and cell-cycle progression on coverslips over an extended period of time.

Kurokawa, Hiroshi [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan) [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan); School of Life Science, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392 (Japan); Noda, Hisayori [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan) [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan); Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550 (Japan); Sugiyama, Mayu [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan) [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan); School of Life Science, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392 (Japan); Sakaue-Sawano, Asako [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan) [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan); Life Function and Dynamics, ERATO, JST, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan); Fukami, Kiyoko [School of Life Science, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392 (Japan)] [School of Life Science, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392 (Japan); Miyawaki, Atsushi, E-mail: matsushi@brain.riken.jp [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan) [Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan); Life Function and Dynamics, ERATO, JST, 2-1 Hirosawa, Wako-city, Saitama 351-0198 (Japan)

2012-01-20T23:59:59.000Z

453

18 PARTICIPATORY DESIGN ACTIVITIES AND AGILE SOFTWARE  

E-Print Network [OSTI]

18 PARTICIPATORY DESIGN ACTIVITIES AND AGILE SOFTWARE DEVELOPMENT Karlheinz Kautz Department, efficient, and economical manner. Keywords Participatory design, agile software development e prototyping (Merisalo-Rantanen et al. 2005), agile (software) development (ASD) has recently gained immense

Boyer, Edmond

454

CTRLWORK AND MACBREAKZ ERGONOMIC BREAK REMINDER SOFTWARE  

E-Print Network [OSTI]

CTRLWORK AND MACBREAKZ ERGONOMIC BREAK REMINDER SOFTWARE SOFTWARE FEATURES: Analyzes your for installation assistance. 1. Please uninstall the former ergonomic break software, RSIGuard, if currently instructions on the screen. For more information, contact the UCSB Ergonomics Program at Ergonomics

California at Santa Barbara, University of

455

QUESTIONS ABOUT GLOBAL WARMING  

E-Print Network [OSTI]

QUESTIONS ABOUT GLOBAL WARMING ¬•IS IT REAL? ¬•IS IT IMPORTANT? ¬•WHAT IS IT DUE TO? ¬•HOW MUCH MORE in the atmosphere, giving Earth its temperate climate. Global Atmosphere, Global Warming GLOBAL TEMPERATURE TREND√?t a cure for global warming! Aerosols only last a short while in the atmosphere, they would have

456

Switchover software reliability estimate for Paducah Freezer/Sublimer computer systems  

SciTech Connect (OSTI)

K-25 Engineering Division purchased a series of redundant computer systems and developed software for the purpose of providing continuous process monitoring and control for the Freezer/Sublimer equipment in the gaseous diffusion process at the Paducah Gaseous Diffusion Plant. The application software is loaded on two central processing units (CPU) so that in the event of a failure of the primary unit, the processing can switch to the backup unit and continue processing without error. It is the purpose of this document to demonstrate the reliability of this system with respect to its ability to switch properly between redundant CPU. The total reliability estimation problem -- which considers the computer hardware, the operating system software, and the application software -- has been reduced to one that considers only the application software directly involved in the switchover process. Estimates are provided for software reliability and the testing coverage. Software and hardware reliability models and reliability growth models are considered in addition to Bayesian approaches.

Flanagan, D.M.; Davis, J.N.

1993-04-01T23:59:59.000Z

457

Scientific Software Engineer | Princeton Plasma Physics Lab  

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

A minimum of one year writing software in the Interactive Data Language (IDL) Matlab, LabView or Python A minimum of one year writing data visualization software...

458

SAPHIRE 8 Software Acceptance Test Plan  

SciTech Connect (OSTI)

This document describe & report the overall SAPHIRE 8 Software acceptance test paln to offically release the SAPHIRE version 8 software to the NRC custoer for distribution.

Ted S. Wood; Curtis L. Smith

2009-07-01T23:59:59.000Z

459

Anatomy of the AGN in NGC 5548: I. A global model for the broadband spectral energy distribution  

E-Print Network [OSTI]

An extensive multi-satellite campaign on NGC 5548 has revealed this archetypal Seyfert-1 galaxy to be in an exceptional state of persistent heavy absorption. Our observations taken in 2013-2014 with XMM-Newton, Swift, NuSTAR, INTEGRAL, Chandra, HST and two ground-based observatories have together enabled us to establish that this unexpected phenomenon is caused by an outflowing stream of weakly ionised gas (called the obscurer), extending from the vicinity of the accretion disk to the broad-line region. In this work we present the details of our campaign and the data obtained by all the observatories. We determine the spectral energy distribution of NGC 5548 from near-infrared to hard X-rays by establishing the contribution of various emission and absorption processes taking place along our line of sight towards the central engine. We thus uncover the intrinsic emission and produce a broadband continuum model for both obscured (average summer 2013 data) and unobscured ($<$ 2011) epochs of NGC 5548. Our res...

Mehdipour, M; Kriss, G A; Cappi, M; Petrucci, P -O; Steenbrugge, K C; Arav, N; Behar, E; Bianchi, S; Boissay, R; Branduardi-Raymont, G; Costantini, E; Ebrero, J; Di Gesu, L; Harrison, F A; Kaspi, S; De Marco, B; Matt, G; Paltani, S; Peterson, B M; Ponti, G; NuŮez, F Pozo; De Rosa, A; Ursini, F; de Vries, C P; Walton, D J; Whewell, M

2015-01-01T23:59:59.000Z

460

Ten Incredibly Dangerous Software Ideas  

E-Print Network [OSTI]

This is a rough draft synopsis of a book presently in preparation. This book provides a systematic critique of the software industry. This critique is accomplished using classical methods in practical design science.

G. A. Maney

2006-07-07T23:59:59.000Z

Note: This page contains sample records for the topic "modeling software global" 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

Kronos: A Java-Based Software System for the Processing and Retrieval of Large Scale  

E-Print Network [OSTI]

interface by scientists wishing to carry out earth system modeling or analysis based on AVHRR Global Area

Bader, David A.

462

Trilinos developers SQE guide : ASC software quality engineering practices.  

SciTech Connect (OSTI)

The Trilinos Project is an effort to develop algorithms and enabling technologies within an object-oriented software framework for the solution of large-scale, complex multi-physics engineering and scientific problems. A new software capability is introduced into Trilinos as a package. A Trilinos package is an integral unit and, although there are exceptions such as utility packages, each package is typically developed by a small team of experts in a particular algorithms area such as algebraic preconditioners, nonlinear solvers, etc. The Trilinos Developers SQE Guide is a resource for Trilinos package developers who are working under Advanced Simulation and Computing (ASC) and are therefore subject to the ASC Software Quality Engineering Practices as described in the Sandia National Laboratories Advanced Simulation and Computing (ASC) Software Quality Plan: ASC Software Quality Engineering Practices Version 3.0 document [1]. The Trilinos Developer Policies webpage [2] contains a lot of detailed information that is essential for all Trilinos developers. The Trilinos Software Lifecycle Model [3]defines the default lifecycle model for Trilinos packages and provides a context for many of the practices listed in this document.

Willenbring, James Michael; Heroux, Michael Allen

2013-05-01T23:59:59.000Z

463

IBM Tivoli License Manager Intelligent software license  

E-Print Network [OSTI]

and software asset management, including a powerful technology capable of controlling software assets inventory and usage tracking. The second part of the document presents a technical overview of Tivoli for license management 5 Understanding software usage and inventory 6 Collecting software usage information 8

464

Bachelor-Fachprojekt ,,Software im Automobil"  

E-Print Network [OSTI]

11 Bachelor-Fachprojekt ,,Software im Automobil" Olaf Spinczyk Arbeitsgruppe Eingebettete.cs.uni-dortmund.de/~spinczyk/ #12;Fachprojekt ,,Software im Automobil" 22 Inhalt Fachprojekte Thema ,,Software im Automobil" Durchf√ľhrung Generalisierung #12;Fachprojekt ,,Software im Automobil" 33 Fachprojekte ... ... haben st√§rkeren

Morik, Katharina

465

Agile Software Assessment (Invited Paper) Oscar Nierstrasz  

E-Print Network [OSTI]

Agile Software Assessment (Invited Paper) Oscar Nierstrasz Software Composition Group University in software development, but it is poorly supported by common development environments, which focus mainly on low-level pro- gramming tasks. We posit the need for agile software assessment, which aims to support

Nierstrasz, Oscar

466

Policy-Parametric Software Travis Breaux  

E-Print Network [OSTI]

Policy-Parametric Software Travis Breaux Department of Computer Science North Carolina State University tdbreaux@ncsu.edu Abstract Policy-parametric software describes a vision for enterprise software that promotes organizational policy as a computational parameter in future software systems. In the following

Young, R. Michael

467

Abstract: Componentbased realtime software speeds devel opment and lowers cost of robotics applications. It enables the  

E-Print Network [OSTI]

applications. It enables the use of rapid prototyping or incremental software process models. The Chimera. The focus of this paper is how to apply the Chimera Methodology specif­ ically to the development of robotic applications. It enables the use of rapid prototyping or incremental software process models. The Chimera

468

User systems guidelines for software projects  

SciTech Connect (OSTI)

This manual presents guidelines for software standards which were developed so that software project-development teams and management involved in approving the software could have a generalized view of all phases in the software production procedure and the steps involved in completing each phase. Guidelines are presented for six phases of software development: project definition, building a user interface, designing software, writing code, testing code, and preparing software documentation. The discussions for each phase include examples illustrating the recommended guidelines. 45 refs. (DWL)

Abrahamson, L. (ed.)

1986-04-01T23:59:59.000Z

469

Greenhouse Gas Mitigation Options in ISEEM Global Energy Model: 2010-2050 Scenario Analysis for Least-Cost Carbon Reduction in Iron and Steel Sector  

SciTech Connect (OSTI)

The goal of the modeling work carried out in this project was to quantify long-term scenarios for the future emission reduction potentials in the iron and steel sector. The main focus of the project is to examine the impacts of carbon reduction options in the U.S. iron and steel sector under a set of selected scenarios. In order to advance the understanding of carbon emission reduction potential on the national and global scales, and to evaluate the regional impacts of potential U.S. mitigation strategies (e.g., commodity and carbon trading), we also included and examined the carbon reduction scenarios in Chinaís and Indiaís iron and steel sectors in this project. For this purpose, a new bottom-up energy modeling framework, the Industrial Sector Energy Efficiency Modeling (ISEEM), (Karali et al. 2012) was used to provide detailed annual projections starting from 2010 through 2050. We used the ISEEM modeling framework to carry out detailed analysis, on a country-by-country basis, for the U.S., Chinaís, and Indiaís iron and steel sectors. The ISEEM model applicable to iron and steel section, called ISEEM-IS, is developed to estimate and evaluate carbon emissions scenarios under several alternative mitigation options - including policies (e.g., carbon caps), commodity trading, and carbon trading. The projections will help us to better understand emission reduction potentials with technological and economic implications. The database for input of ISEEM-IS model consists of data and information compiled from various resources such as World Steel Association (WSA), the U.S. Geological Survey (USGS), China Steel Year Books, India Bureau of Mines (IBM), Energy Information Administration (EIA), and recent LBNL studies on bottom-up techno-economic analysis of energy efficiency measures in the iron and steel sector of the U.S., China, and India, including long-term steel production in China. In the ISEEM-IS model, production technology and manufacturing details are represented, in addition to the extensive data compiled from recent studies on bottom-up representation of efficiency measures for the sector. We also defined various mitigation scenarios including long-term production trends to project country-specific production, energy use, trading, carbon emissions, and costs of mitigation. Such analyses can provide useful information to assist policy-makers when considering and shaping future emissions mitigation strategies and policies. The technical objective is to analyze the costs of production and CO{sub 2} emission reduction in the U.S, China, and Indiaís iron and steel sectors under different emission reduction scenarios, using the ISEEM-IS as a cost optimization model. The scenarios included in this project correspond to various CO{sub 2} emission reduction targets for the iron and steel sector under different strategies such as simple CO{sub 2} emission caps (e.g., specific reduction goals), emission reduction via commodity trading, and emission reduction via carbon trading.

Karali, Nihan; Xu, Tengfang; Sathaye, Jayant

2013-12-01T23:59:59.000Z

470

Global Health Seminar Series  

E-Print Network [OSTI]

Bay Area Global Health Seminar Series Moving beyond millennium targets in global health: The challenges of investing in health and universal health coverage Although targets can help to focus global health efforts, they can also detract attention from deeper underlying challenges in global health

Klein, Ophir

471

Global Warming Observations  

E-Print Network [OSTI]

Global Warming Observations: 1. Global temperature has been gradually rising in recent years #15 in range 8000 12000 nm { CFC's, methane and N 2 O important for global warming even though concentra- tions in concentration of \\greenhouse gases" like CO 2 What determines global temperature? Energy budget of earth: 1

Schofield, Jeremy

472

A software system for oilfield facility investment minimization  

SciTech Connect (OSTI)

Minimizing investment in oilfield development is an important subject that has attracted a considerable amount of industry attention. One method to reduce investment involves the optimal placement and selection of production facilities. Because of the large amount of capital used in this process, saving a small percent of the total investment may represent a large monetary value. The literature reports algorithms using mathematical programming techniques that were designed to solve the proposed problem in a global optimal manner. Owing to the high-computational complexity and the lack of user-friendly interfaces for data entry and results display, mathematical programming techniques have not been given enough attention in practice. This paper describes an interactive, graphical software system that provides a global optimal solution to the problem of placement and selection of production facilities in oil-field development processes. This software system can be used as an investment minimization tool and a scenario-study simulator. The developed software system consists of five basic modules: (1) an interactive data-input unit, (2) a cost function generator, (3) an optimization unit, (4) a graphic-output display, and (5) a sensitivity-analysis unit.

Ding, Z.X. [Coastal Corp., Houston, TX (United States); Startzman, R.A. [Texas A and M Univ., College Station, TX (United States)

1996-08-01T23:59:59.000Z

473

Safety critical software development qualification  

SciTech Connect (OSTI)

With the increasing use of digital systems in control applications, customers must acquire appropriate expectations for software development and quality assurance procedures. Purchasers and users of digital systems need to understand the benefits to the supplier of effective quality systems. These systems consist not only of procedures but tools that enable automation. Without the use of automation, quality can not be assured. A software and systems quality program starts with the documents you are very familiar with. But these documents must define more than the final system. They must address specific development environment characteristics and testing capabilities. Starting with the RFP, some of the items that should be introduced are Software Configuration Management, regression testing and defect tracking. The digital system customer is in the best position to enforce the use of software and systems quality programs by including them in project requirements as early as the Purchase Order. The customer's understanding of the full scope and implementation of a software quality program is essential to achieving the quality necessary in nuclear projects, and, incidentally, completing those projects on schedule. (authors)

Marron, J. E. [Invensys Process Systems, 33 Commercial Street, Foxboro, MA 02035 (United States)

2006-07-01T23:59:59.000Z

474

Solar Radiation Modeling and Measurements for Renewable Energy Applications: Data and Model Quality; Preprint  

SciTech Connect (OSTI)

Measurement and modeling of broadband and spectral terrestrial solar radiation is important for the evaluation and deployment of solar renewable energy systems. We discuss recent developments in the calibration of broadband solar radiometric instrumentation and improving broadband solar radiation measurement accuracy. An improved diffuse sky reference and radiometer calibration and characterization software and for outdoor pyranometer calibrations is outlined. Several broadband solar radiation model approaches, including some developed at the National Renewable Energy Laboratory, for estimating direct beam, total hemispherical and diffuse sky radiation are briefly reviewed. The latter include the Bird clear sky model for global, direct beam, and diffuse terrestrial solar radiation; the Direct Insolation Simulation Code (DISC) for estimating direct beam radiation from global measurements; and the METSTAT (Meteorological and Statistical) and Climatological Solar Radiation (CSR) models that estimate solar radiation from meteorological data. We conclude that currently the best model uncertainties are representative of the uncertainty in measured data.

Myers, D. R.

2003-03-01T23:59:59.000Z

475

Maintainable and Reusable Scientific Software Adaptation Democratizing Scientific Software Adaptation  

E-Print Network [OSTI]

.kang@samsung.com Eli Tilevich, Srinidhi Varadarajan, and Naren Ramakrishnan Center for High-End Computing Systems Dept resources to ensure its efficiency and reliability. Although adaptation patterns can be found in a sizable-oriented Pro- gramming; D.2.7 [Software Engineering]: Distribution, Maintenance, and Enhancement; D.2

Ramakrishnan, Naren

476

A Formal Embedded Software Verification using Software Fault Tree Analysis  

E-Print Network [OSTI]

-mail: jbyoo@konkuk.ac.kr Extended Abstract In developing embedded software such as nuclear reactor protection checking [4]. We used a prototype version of the KNICS RPS [5] in Korean nuclear power plants, but it may also be able to auto-populate address book changes. This is based on the use of an operating

477

Computed Tomography software and standards  

SciTech Connect (OSTI)

This document establishes the software design, nomenclature, and conventions for industrial Computed Tomography (CT) used in the Nondestructive Evaluation Section at Lawrence Livermore National Laboratory. It is mainly a users guide to the technical use of the CT computer codes, but also presents a proposed standard for describing CT experiments and reconstructions. Each part of this document specifies different aspects of the CT software organization. A set of tables at the end describes the CT parameters of interest in our project. 4 refs., 6 figs., 1 tab.

Azevedo, S.G.; Martz, H.E.; Skeate, M.F.; Schneberk, D.J.; Roberson, G.P.

1990-02-20T23:59:59.000Z

478

NIF Projects Controls and Information Systems Software Quality Assurance Plan  

SciTech Connect (OSTI)

Quality achievement for the National Ignition Facility (NIF) and the National Ignition Campaign (NIC) is the responsibility of the NIF Projects line organization as described in the NIF and Photon Science Directorate Quality Assurance Plan (NIF QA Plan). This Software Quality Assurance Plan (SQAP) is subordinate to the NIF QA Plan and establishes quality assurance (QA) activities for the software subsystems within Controls and Information Systems (CIS). This SQAP implements an activity level software quality assurance plan for NIF Projects as required by the LLNL Institutional Software Quality Assurance Program (ISQAP). Planned QA activities help achieve, assess, and maintain appropriate quality of software developed and/or acquired for control systems, shot data systems, laser performance modeling systems, business applications, industrial control and safety systems, and information technology systems. The objective of this SQAP is to ensure that appropriate controls are developed and implemented for management planning, work execution, and quality assessment of the CIS organization's software activities. The CIS line organization places special QA emphasis on rigorous configuration control, change management, testing, and issue tracking to help achieve its quality goals.

Fishler, B

2011-03-18T23:59:59.000Z

479

Siemens Global Studio Project: Experiences Adopting an Integrated GSD Infrastructure  

E-Print Network [OSTI]

Siemens Global Studio Project: Experiences Adopting an Integrated GSD Infrastructure Mullick, N., Bass, M., El Houda, Z., and Paulish, D.J. Siemens Corporate Research, Inc Princeton, NJ Neel.Mullick, Matthew.Bass, Daniel.Paulish @Siemens.com Cataldo, M. and Herbsleb, J.D. Institute for Software Research

Herbsleb, James D.

480

E-Print Network 3.0 - agent-based software design Sample Search...  

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

simulation CM Macal1,2 Summary: Macal and MJ North--Tutorial on agent-based modelling and simulation 157 12;software (model) design... in the development of specialized...

Note: This page contains sample records for the topic "modeling software global" 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.
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481

Software aspects of energy management systems  

SciTech Connect (OSTI)

This paper is intended to serve the need for an understanding of the role which software plays in energy management systems (EMS), and of the considerations involved in designing, implementing and maintaining such systems. The paper begins with a brief elementary examination of what software is and the types of basic functions it typically performs in EMS applications. Various aspects of EMS software are then explained and discussed, including software architecture, programming language, operating system, data base management, man-machine interface, application software, and communications. In addition to providing a tutorial on the composition and content of EMS software, the paper addresses several related questions, such as the reasons for choosing one programming language over another, the effect of system size on software factors, the extent to which off-the-shelf software components can and should be incorporated in EMS, and the relationship of software to the overall user interface with the systems.

Stinaff, R.D.

1983-06-01T23:59:59.000Z

482

On the Responsibilities of Software Architects and Software Engineers in an Agile Environment: Who Should  

E-Print Network [OSTI]

team. Furthermore, in an agile environment software architects and developers often have overlappingOn the Responsibilities of Software Architects and Software Engineers in an Agile Environment: Who, Human Factors. Keywords Agile development, design responsibilities, task ownership. 1. INTRODUCTION

van Vliet, Hans

483

The Science of Global Warming Energy Balance  

E-Print Network [OSTI]

The Science of Global Warming ·Energy Balance ·Feedback Loops Global Warming can be understood complexities ·Introduce a Simple Model of Energy Balance ·Understand the Vocabulary ·Point out some units of energy input from the Sun = Temperature: 5.3 oC Greenhouse Effect 101: A Balance is Achieved

Blais, Brian

484

Software Testing Jos de Kloe,  

E-Print Network [OSTI]

/GUI interfaces) Integration tests: automatisch verzenden van files naar ECMWF triggeren van processen bij ECMWF Document SVVP=Software Validation and Verification Plan #12;MMM, J. de Kloe, 2 maart 2009 7 GSOV testing Werking van algorithmes Werking van allerhande scripts Complete processor Controleer ook dat foutieve

Stoffelen, Ad

485

School of Education Qualitative Software  

E-Print Network [OSTI]

about a variety of programs 1:00-2:00 Session 1a (Teacher Education, Room 215) "Keeping TrackSchool of Education Qualitative Software Fair & Symposium 10:30 Registration Opens (Educational Sciences, Room 253) 11:00 Welcome (Educational Sciences, Room 253) 11:10-12:00 Web Keynote (Educational

Wisconsin at Madison, University of

486

Software Fault Diagnosis Peter Zoeteweij  

E-Print Network [OSTI]

Lab, Faculty of Electrical Engineering, Mathematics, and Computer Science, Delft University-to-day basis is constantly growing. Combined with a practically constant rate of faults per line of code in the software development cycle, which aim at exposing such discrepancies. In this context, automated diagnosis

Zoeteweij, Peter

487

SUSTAINABLE REMEDIATION SOFTWARE TOOL EXERCISE AND EVALUATION  

SciTech Connect (OSTI)

The goal of this study was to examine two different software tools designed to account for the environmental impacts of remediation projects. Three case studies from the Savannah River Site (SRS) near Aiken, SC were used to exercise SiteWise (SW) and Sustainable Remediation Tool (SRT) by including both traditional and novel remediation techniques, contaminants, and contaminated media. This study combined retrospective analysis of implemented projects with prospective analysis of options that were not implemented. Input data were derived from engineering plans, project reports, and planning documents with a few factors supplied from calculations based on Life Cycle Assessment (LCA). Conclusions drawn from software output were generally consistent within a tool; both tools identified the same remediation options as the 'best' for a given site. Magnitudes of impacts varied between the two tools, and it was not always possible to identify the source of the disagreement. The tools differed in their quantitative approaches: SRT based impacts on specific contaminants, media, and site geometry and modeled contaminant removal. SW based impacts on processes and equipment instead of chemical modeling. While SW was able to handle greater variety in remediation scenarios, it did not include a measure of the effectiveness of the scenario.

Kohn, J.; Nichols, R.; Looney, B.

2011-05-12T23:59:59.000Z

488

Advanced Analytics | GE Global Research  

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

oil field production. Power Generation - Combinations of hardware and software that boost wind turbine and gas-fired power plant output and efficiency. Rail - Cloud-based software...

489

A High-Resolution Global Climate Simulation  

SciTech Connect (OSTI)

A major factor limiting the quality and usefulness of global climate models is the coarse spatial resolution of these models. Global climate models today are typically run at resolutions of {approx}300 km (or even coarser) meaning that the smallest features represented are 300 km across. As Figure 1 shows, this resolution does not allow adequate representation of small or even large topographic features (e.g. the Sierra Nevada mountains). As a result of this and other problems, coarse-resolution global models do not come close to accurately simulating climate on regional spatial scales (e.g. within California). Results on continental and larger sales are much more realistic. An important consequence of this inability to simulate regional climate is that global climate model results cannot be used as the basis of assessments of potential societal impacts of climate change (e.g. effects on agriculture in the Central Valley, on management of water resources, etc.).

Duffy, P B

2001-01-23T23:59:59.000Z

490

Global Cooling: Effect of Urban Albedo on Global Temperature  

SciTech Connect (OSTI)

In many urban areas, pavements and roofs constitute over 60% of urban surfaces (roof 20-25%, pavements about 40%). The roof and the pavement albedo can be increased by about 0.25 and 0.10, respectively, resulting in a net albedo increase for urban areas of about 0.1. Many studies have demonstrated building cooling-energy savings in excess of 20% upon raising roof reflectivity from an existing 10-20% to about 60%. We estimate U.S. potential savings in excess of $1 billion (B) per year in net annual energy bills. Increasing albedo of urban surfaces can reduce the summertime urban temperature and improve the urban air quality. Increasing the urban albedo has the added benefit of reflecting more of the incoming global solar radiation and countering the effect of global warming. We estimate that increasing albedo of urban areas by 0.1 results in an increase of 3 x 10{sup -4} in Earth albedo. Using a simple global model, the change in air temperature in lowest 1.8 km of the atmosphere is estimated at 0.01K. Modelers predict a warming of about 3K in the next 60 years (0.05K/year). Change of 0.1 in urban albedo will result in 0.01K global cooling, a delay of {approx}0.2 years in global warming. This 0.2 years delay in global warming is equivalent to 10 Gt reduction in CO2 emissions.

Akbari, Hashem; Menon, Surabi; Rosenfeld, Arthur

2007-05-22T23:59:59.000Z

491

Software archeology: a case study in software quality assurance and design  

SciTech Connect (OSTI)

Ideally, quality is designed into software, just as quality is designed into hardware. However, when dealing with legacy systems, demonstrating that the software meets required quality standards may be difficult to achieve. As the need to demonstrate the quality of existing software was recognized at Los Alamos National Laboratory (LANL), an effort was initiated to uncover and demonstrate that legacy software met the required quality standards. This effort led to the development of a reverse engineering approach referred to as software archaeology. This paper documents the software archaeology approaches used at LANL to document legacy software systems. A case study for the Robotic Integrated Packaging System (RIPS) software is included.

Macdonald, John M [Los Alamos National Laboratory; Lloyd, Jane A [Los Alamos National Laboratory; Turner, Cameron J [COLORADO SCHOOL OF MINES

2009-01-01T23:59:59.000Z

492

Nonsingular static global string  

E-Print Network [OSTI]

A new solution for the spacetime outside the core of a U(1) static global string has been presented which is nonsingular. This is the first example of a nonsingular spacetime around a static global string.}}

A. A. Sen; N. Banerjee

2000-04-12T23:59:59.000Z

493

Review: Globalization of Water  

E-Print Network [OSTI]

Review: Globalization of Water: Sharing the PlanetísAshok K. Globalization of Water: Sharing the Planetís140) liters of virtual water (p. 15). This is one of the

Tennant, Matthew Aaron

2009-01-01T23:59:59.000Z

494

Global Environmental Course Title  

E-Print Network [OSTI]

Department Global Environmental Studies Room Course Title Frontier of Sustainability Science Instructor Akihisa MORI, Global Environmental Studies Satoshi KONISHI, Institute of Advanced consisting from a variety of academic field, including philosophy, politics, economics, energy, architecture

Takada, Shoji

495

Cows Causing Global Warming  

E-Print Network [OSTI]

Broadcast Transcript: Remember when President Reagan blamed trees for air pollution? Well now the Japanese are blaming cows for global warming. Apparently, the methane emissions from burping cows account for 5% of all global greenhouse gases. Simple...

Hacker, Randi

2008-08-06T23:59:59.000Z

496

The Contribution of Biomass to Emissions Mitigation under a Global Climate Policy  

E-Print Network [OSTI]

What will large-scale global bioenergy production look like? We investigate this question by developing a detailed representation of bioenergy in a global economy-wide model. We develop a scenario with a global carbon ...

Winchester, N.

497

Software: our quest for excellence. Honoring 50 years of software history, progress, and process  

SciTech Connect (OSTI)

The Software Quality Forum was established by the Software Quality Assurance (SQA) Subcommittee, which serves as a technical advisory group on software engineering and quality initiatives and issues for DOE`s quality managers. The forum serves as an opportunity for all those involved in implementing SQA programs to meet and share ideas and concerns. Participation from managers, quality engineers, and software professionals provides an ideal environment for identifying and discussing issues and concerns. The interaction provided by the forum contributes to the realization of a shared goal--high quality software product. Topics include: testing, software measurement, software surety, software reliability, SQA practices, assessments, software process improvement, certification and licensing of software professionals, CASE tools, software project management, inspections, and management`s role in ensuring SQA. The bulk of this document consists of vugraphs. Selected papers have been indexed separately for inclusion in the Energy Science and Technology Database.

NONE

1997-06-01T23:59:59.000Z

498

Enterprise software : analysis of product strategies  

E-Print Network [OSTI]

Since the invention of IBM 360, the first computing system about five decades ago, the processing and software capabilities have grown by leaps and have become major components of businesses. The software applications and ...

Boppana, Krishna S

2007-01-01T23:59:59.000Z

499

Web-Based Software Vendor Management Application  

E-Print Network [OSTI]

At XYZ Technologies, Inc., the lack of standardized processes and tools to manage different software vendors is costing the company time and money. Visibility and the ability to track software vendor transactions are limited due to the lack of a...

Puppala, Naresh

2010-05-14T23:59:59.000Z

500

MATLAB and GAMS: Interfacing Optimization and Visualization Software  

E-Print Network [OSTI]

MATLAB and GAMS: Interfacing Optimization and Visualization Software Michael C. Ferris May 26 is assumed to have already. The soft- ware gives MATLAB users the ability to use all the optimization ca- pabilities of GAMS, and allows visualization of GAMS models directly within MATLAB. The most recent version

Ferris, Michael C.