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Note: This page contains sample records for the topic "insight macroeconomic model" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

An Econometric Model of the Yield Curve With Macroeconomic Jump Effects  

E-Print Network [OSTI]

Kenneth Singleton (1997). “An Econometric Model of the TermDiscretely-Sampled Data. ” Econometric Theory 4, pp. 231-An Econometric Model of the Yield Curve with Macroeconomic

Piazzesi, Monika

2001-01-01T23:59:59.000Z

2

AgentAgent--Based Computational ModelingBased Computational Modeling and Macroeconomicsand Macroeconomics  

E-Print Network [OSTI]

experimental study of macroeconomic systems #12;3 Macro regularities arise from local interactions among micro of interaction networks;Endogenous formation of interaction networks; AutonomyAutonomy (self-activation and self

Tesfatsion, Leigh

3

Essays in macroeconomics and corporate finance  

E-Print Network [OSTI]

This thesis examines questions at the intersection of macroeconomics and finance. Chapter 1 studies the persistent effects of a decrease in firms' ability to borrow. I develop a tractable model of deleveraging that emphasizes ...

Goldberg, Jonathan E. (Jonathan Elliot)

2011-01-01T23:59:59.000Z

4

Essays in International Macroeconomics and Forecasting  

E-Print Network [OSTI]

This dissertation contains three essays in international macroeconomics and financial time series forecasting. In the first essay, I show, numerically, that a two-country New-Keynesian Sticky Prices model, driven by monetary and productivity shocks...

Bejarano Rojas, Jesus Antonio

2012-10-19T23:59:59.000Z

5

Essays in macroeconomics  

E-Print Network [OSTI]

This thesis examines questions in macroeconomics motivated by the 2007-2008 financial crisis and its aftermath. Chapter 1 studies the impact of a housing bust on regional labor reallocation and the labor market. I document ...

Nenov, Plamen T. (Plamen Toshkov)

2012-01-01T23:59:59.000Z

6

Multimodal Transport Modeling for Nairobi, Kenya: Insights and Recommendations with an Evidence-Based Model  

E-Print Network [OSTI]

Multimodal Transport Modeling for Nairobi, Kenya: Insights and Recommendations with an Evidence-5 August 2009 #12;Multimodal Transport Modeling for Nairobi, Kenya: Insights and Recommendations

California at Berkeley, University of

7

Long Run Macroeconomic Relations in the Global Economy  

E-Print Network [OSTI]

This paper focuses on testing long run macroeconomic relations for interest rates, equity, prices and exchange rates within a model of the global economy. It considers a number of plausible long run relationships suggested by arbitrage in financial...

Dees, S; Holly, Sean; Pesaran, M Hashem; Smith, L Vanessa

8

Molecular modeling gives insight into nonionic surfactants  

SciTech Connect (OSTI)

This paper describes the study of a nonionic surfactant through the use of molecular modeling software. The surfactant was decyl alcohol capped with 8 moles of ethylene oxide. This nonionic surfactant is a strong water-wetting agent as well as a good aqueous foaming agent. Four molecular dynamics studies of a single surfactant molecule were conducted under the following conditions: at a water surface at 80 F; in bulk water at 260 F; in bulk hexane at 80 F; at a hexane/water interface at 80 F. The conformations of the surfactant were observed and compared to known solubility data. The results from molecular modeling dynamics calculations will provide new insights into the behavior of surfactant molecules at surfaces and interfaces. This methodology was also extended to aggregates of surfactants to promote understanding of wetting behavior and non-emulsification behavior. In this paper, two studies were performed involving aggregates: one in bulk water at 80 F and another in bulk water at 260 F.

Gdanski, R.

1995-11-01T23:59:59.000Z

9

Essays in macroeconomics and experiments  

E-Print Network [OSTI]

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

Shurchkov, Olga

2008-01-01T23:59:59.000Z

10

Essays on liquidity in macroeconomics  

E-Print Network [OSTI]

This thesis includes four essays on the macroeconomic effects of financial market imperfections. The first essay studies the incentives for banks that participate in an interbank market to keep a sufficient level of reserves. ...

Lorenzoni, Guido

2001-01-01T23:59:59.000Z

11

Essays on Macroeconomics  

E-Print Network [OSTI]

A Microfounded Business Cycle Model . . . . . . . . . . .A Real Business Cycle Model . . . . . . . . . . . .A Real Business Cycle Model . . . . .

Llosa, Luis Gonzalo

2012-01-01T23:59:59.000Z

12

Friction versus dilation revisited: Insights from theoretical and numerical models  

E-Print Network [OSTI]

Friction versus dilation revisited: Insights from theoretical and numerical models N. Makedonska,1 controlled by the frictional strength of the fault gouge, a granular layer that accumulates between the fault friction coefficient) of such granular layers is the systems resistance to dilation, a byprocess

Einat, Aharonov

13

Three essays in macroeconomics  

E-Print Network [OSTI]

Chapter 1 analyzes the theoretical and quantitative implications of optimal fiscal policy in a business cycle model with incomplete markets. I first consider the problem of a government facing expenditure shocks in an ...

Farhi, Emmanuel

2006-01-01T23:59:59.000Z

14

Essays in Macroeconomic Analysis  

E-Print Network [OSTI]

-2- -3- A mis padres, por todo. -4- TABLE OF CONTENTS ABSTRACTS... with their theoretical predictions) but an increase in the consumption of durables which is consistent with the evidence and theoretical predictions of the New Keynesian models. CHAPTER 2: THE IMPACT OF FISCAL EXPANSIONS ON PRIVATE SPENDING: A REAL...

Valcarcel, Victor J.

2008-07-31T23:59:59.000Z

15

Model year 2010 Honda insight level-1 testing report.  

SciTech Connect (OSTI)

As a part of the US Department of Energy's Advanced Vehicle Testing Activity (AVTA), a model year 2010 Honda Insight was procured by eTec (Phoenix, AZ) and sent to ANL's Advanced Powertrain Research Facility for the purposes of vehicle-level testing in support of the Advanced Vehicle Testing Activity (AVTA). Data was acquired during testing using non-intrusive sensors, vehicle network information, and facilities equipment (emissions and dynamometer data). Standard drive cycles, performance cycles, steady-state cycles and A/C usage cycles were tested. Much of this data is openly available for download in ANL's Downloadable Dynamometer Database (D3). The major results are shown here in this report. Given the preliminary nature of this assessment, the majority of the testing was done over standard regulatory cycles and seeks to obtain a general overview of how the vehicle performs. These cycles include the US FTP cycle (Urban) and Highway Fuel Economy Test cycle as well as the US06, a more aggressive supplemental regulatory cycle. Data collection for this testing was kept at a fairly high level and includes emissions and fuel measurements from an exhaust emissions bench, high-voltage and accessory current and voltage from a DC power analyzer, and CAN bus data such as engine speed, engine load, and electric machine operation when available. The following sections will seek to explain some of the basic operating characteristics of the MY2010 Insight and provide insight into unique features of its operation and design.

Rask, E.; Bocci, D.; Duoba, M.; Lohse-Busch, H. (Energy Systems)

2011-03-22T23:59:59.000Z

16

Climate Insights 101 Questions and Discussion Points: Module 1, Lesson 4: An Introduction to Climate Modelling  

E-Print Network [OSTI]

Climate Insights 101 Questions and Discussion Points: Module 1, Lesson 4: An Introduction to Climate Modelling 1 Climate Insights 101 Questions and Discussion Points Module 1, Lesson 4: An Introduction to Climate Modelling Available at http://pics.uvic.ca/education/climate-insights-101 Updated May

Pedersen, Tom

17

Essays on macroeconomic risks and stock prices  

E-Print Network [OSTI]

In this thesis, I study the relationship between macroeconomic risks and asset prices. In the first chapter, I establish that inflation risk is priced in the cross-section of stock returns: stocks that have low returns ...

Duarte, Fernando Manuel

2011-01-01T23:59:59.000Z

18

Essays on political institutions and macroeconomics  

E-Print Network [OSTI]

This dissertation consists of three chapters on the interaction of political institutions and macroeconomic activity in dynamic environments. Chapter 1 studies the optimal management of taxes and debt in a framework which ...

Yared, Pierre

2007-01-01T23:59:59.000Z

19

Roofline: An Insightful Visual Performance Model for Floating-Point Programs and Multicore Architectures  

SciTech Connect (OSTI)

We propose an easy-to-understand, visual performance model that offers insights to programmers and architects on improving parallel software and hardware for floating point computations.

Williams, Samuel; Waterman, Andrew; Patterson, David

2009-02-01T23:59:59.000Z

20

NBER WORKING PAPER SERIES MACROECONOMIC INTERDEPENDENCE OF  

E-Print Network [OSTI]

.S.; (2) the macroeco- nomic implications of a protectionist tariff imposed by the U.S.; and (3) the scope be the macroeconomic implications of a protectionist tariff imposed by the U.S.? Finally, what is the scope for policy

Note: This page contains sample records for the topic "insight macroeconomic model" 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

WAGES, FLEXIBLE EXCHANGE RATES, AND MACROECONOMIC POLICY*  

E-Print Network [OSTI]

WAGES, FLEXIBLE EXCHANGE RATES, AND MACROECONOMIC POLICY* JEFFREY SACHS In an open economy with a floaLing exchange rate, the efficacy of fiscal and monetary policy depends fundamentally on the wage rate depreciation, while fiscal expansion has no output effect. These results hold only when real wages

22

Essays on macroeconomics and forecasting  

E-Print Network [OSTI]

is the structural factor augmented vector autoregressive (SFAVAR) model and the other is the structural factor vector autoregressive (SFVAR) model. Compared to the traditional vector autogression (VAR) model, both models incorporate far more information from...

Liu, Dandan

2006-10-30T23:59:59.000Z

23

Bioenergetics Modeling in the 21st Century: Reviewing New Insights and Revisiting Old Constraints  

E-Print Network [OSTI]

Bioenergetics Modeling in the 21st Century: Reviewing New Insights and Revisiting Old Constraints.--The development and application of fish bioenergetics models have flourished in recent years, due in part of bioenergetics models can be hampered by uncertainty in model parameters. A review of the literature showed

24

Essays in macroeconomics and finance  

E-Print Network [OSTI]

The first chapter proposes a model of booms and busts in housing and non-housing consumption driven by the interplay between relatively low interest rates and an expansion of credit, triggered by further decline in interest ...

Mohsenzadeh Kermani, Amir Reza

2013-01-01T23:59:59.000Z

25

Essays on finance and macroeconomics  

E-Print Network [OSTI]

This thesis studies the role of the financial system in the amplification and propagation of business cycles. Chapter 1 studies the origin and propagation of balance sheet recessions. I first show that in standard models ...

Di Tella, Sebastian T. (Sebastian Tariacuri)

2013-01-01T23:59:59.000Z

26

Currents and turbulence within a kelp forest (Macrocystis pyrifera): Insights from a dynamically scaled laboratory model  

E-Print Network [OSTI]

Currents and turbulence within a kelp forest (Macrocystis pyrifera): Insights from a dynamically a dynamically matched 1/25-scale model. Two kelp configurations with surface canopies and one without a surface acoustic Doppler velocimeters. Since flow within the model kelp forest was very heterogeneous, spatially

Denny, Mark

27

Welding processes in volcanology: insights from field, experimental, and modeling studies  

E-Print Network [OSTI]

Welding processes in volcanology: insights from field, experimental, and modeling studies Anita This volume is a collection of ten papers largely derived from a special session, Welding Processes, experimental, and modeling studies. We briefly review advances in understanding welding as represented

Russell, Kelly

28

Behavioural insights into the Modelling of Freight Transportation and Distribution Systems  

E-Print Network [OSTI]

fuelled the extension of supply chains and the globalization of the world economy. At the micro-step modelling paradigm cannot provide adequate answers in the twenty-first century global customer-driven economy. This special issue is dedicated to innovative modelling efforts that provide new insights

Bertini, Robert L.

29

Alternative Measures of Welfare in Macroeconomic Models  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

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

30

Modelling macroeconomic flows related to large ensembles  

E-Print Network [OSTI]

, including, say, oil prices, interest rates, etc; dynamics of shares markets are governed by information are illustrated by flows of a liquid between interconnected reservoirs, where the heights of different reservoirs is changing with time, and movement of the liquid between the reservoirs is governed by gravity, see Figure 1

Schellekens, Michel P.

31

Carbon Footprint and the Management of Supply Chains: Insights from Simple Models  

E-Print Network [OSTI]

Carbon Footprint and the Management of Supply Chains: Insights from Simple Models Saif Benjaafar1-making that accounts for both cost and carbon footprint. We examine how the values of these parameters as well or shareholders, are undertaking initiatives to reduce their carbon footprint. However, these initiatives have

Benjaafar, Saifallah

32

Transportation technology transitions and macroeconomic growth -- Contemporary evidence  

SciTech Connect (OSTI)

This paper presents international and temporal extensions of evidence for a theory developed by the author concerning the interaction of transportation technology transitions and macroeconomic growth. The period 1970 to the present is examined for the nations of Japan, the US, and Europe (France, Germany, Italy and the United Kingdom collectively). An addition to the abstract logic supporting the general arguments of the theory is also presented. The theory has been developed concerning the role of significant transportation technology transitions as a cause of significant macroeconomic declines in nations for which the manufacture of transportation vehicles (ships, locomotives, and automobiles) is a dominant economic activity. The theory offers an explanation for periods of pronounced multiyear decline in economic growth rate--sometimes called depressions and sometimes called stagnations. One purpose of this paper is to explore whether or not Japan and Europe have each recently experienced a multiyear event of this type. In the theory and the evidence presented for it, environmental regulation of transportation vehicles has been shown to be an initiating cause of significant technical change, with sharp, sustained fuel price increases being a second frequent initiating cause. These causes of significant technical change, and their possible consequences, are potentially important considerations for those proposing policies to deal with global warming, since both fuel economy regulation and fuel price increases have been recommended by policy analysts as means to reduce transportation`s contribution to global warming. The theory has been offered and supported by publications developing mathematical models and examining US historical evidence consistent with the theory.

Santini, D.J.

1994-12-31T23:59:59.000Z

33

Essays on the stock market's reaction to macroeconomic news  

E-Print Network [OSTI]

Macroeconomic News Variables 21. PCE, M/M %Change, (SAAR, %)Capacity Utilization Rate 21. PCE 20. New Home Sales 24. NewAdv. Durables Investment 21. PCE 20. New Home Sales R 2 19.

Cenesizoglu, Tolga

2006-01-01T23:59:59.000Z

34

14.452 Macroeconomic Theory II, Spring 2002  

E-Print Network [OSTI]

The basic machines of macroeconomics. Ramsey, Solow, Samuelson-Diamond, RBCs, ISLM, Mundell-Fleming, Fischer-Taylor. How they work, what shortcuts they take, and how they can be used. Half-term subject. From the course ...

Blanchard, Olivier (Olivier J.)

35

The Declining Equity Premium: What Role Does Macroeconomic Risk Play?  

E-Print Network [OSTI]

-dividend and price-earnings ratios remain well above their historical norms. More formally, the recent run of Pennsylvania and NBER Aggregate stock prices, relative to virtually any indicator of fundamental value, soared historical norms. Why? We consider one particular explanation: a fall in macroeconomic risk

Kahana, Michael J.

36

Introduction to Macroeconomic Dynamics Special Issue on Oil Price Shocks  

E-Print Network [OSTI]

Introduction to Macroeconomic Dynamics Special Issue on Oil Price Shocks Apostolos Serletisy in macroeconometrics and ...nancial econometrics to investigate the e¤ects of oil price shocks and uncertainty about the price of oil on the level of economic activity. JEL classi...cation: G31, E32, C32. Keywords: Oil price

Garousi, Vahid

37

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 « physical » content � Secure

Boyer, Edmond

38

Three essays in finance and macroeconomics  

E-Print Network [OSTI]

In the first chapter I investigate whether firms' physical investments react to the speculative over-pricing of their securities. I introduce investment considerations in an infinite horizon continuous time model with short ...

Panageas, Stavros

2005-01-01T23:59:59.000Z

39

Term Structure Dynamics with Macroeconomic Factors  

E-Print Network [OSTI]

with Macro Variables I present an a ne term structure model with latent factors and observable macroeco- nomic variables. I denote a state variable vector by Xt = (x1t; ;xkt;xk+1t;:::;xnt)0, where the rstk factors are unobservable and the remaining (n k...) factors are macroe- conomic variables. Suppose that Xt follows an Ito process (2.3) dXt = K[ Xt]dt+ p StdWt; where K is an n n matrix, is an n 1 vector. St is an n n diagonal matrix and the ith diagonal element is given as i + 0iXt, where i is a...

Park, Ha-Il

2011-02-22T23:59:59.000Z

40

Galaxy Evolution Insights from Spectral Modeling of Large Data Sets from the Sloan Digital Sky Survey  

SciTech Connect (OSTI)

This thesis centers on the use of spectral modeling techniques on data from the Sloan Digital Sky Survey (SDSS) to gain new insights into current questions in galaxy evolution. The SDSS provides a large, uniform, high quality data set which can be exploited in a number of ways. One avenue pursued here is to use the large sample size to measure precisely the mean properties of galaxies of increasingly narrow parameter ranges. The other route taken is to look for rare objects which open up for exploration new areas in galaxy parameter space. The crux of this thesis is revisiting the classical Kennicutt method for inferring the stellar initial mass function (IMF) from the integrated light properties of galaxies. A large data set ({approx} 10{sup 5} galaxies) from the SDSS DR4 is combined with more in-depth modeling and quantitative statistical analysis to search for systematic IMF variations as a function of galaxy luminosity. Galaxy H{alpha} equivalent widths are compared to a broadband color index to constrain the IMF. It is found that for the sample as a whole the best fitting IMF power law slope above 0.5 M{sub {circle_dot}} is {Lambda} = 1.5 {+-} 0.1 with the error dominated by systematics. Galaxies brighter than around M{sub r,0.1} = -20 (including galaxies like the Milky Way which has M{sub r,0.1} {approx} -21) are well fit by a universal {Lambda} {approx} 1.4 IMF, similar to the classical Salpeter slope, and smooth, exponential star formation histories (SFH). Fainter galaxies prefer steeper IMFs and the quality of the fits reveal that for these galaxies a universal IMF with smooth SFHs is actually a poor assumption. Related projects are also pursued. A targeted photometric search is conducted for strongly lensed Lyman break galaxies (LBG) similar to MS1512-cB58. The evolution of the photometric selection technique is described as are the results of spectroscopic follow-up of the best targets. The serendipitous discovery of two interesting blue compact dwarf galaxies is reported. These galaxies were identified by their extremely weak (< 150) [N {pi}] {lambda}6584 to H{alpha} emission line ratios. Abundance analysis from emission line fluxes reveals that these galaxies have gas phase oxygen abundances 12 + log(O/H) {approx} 7.7 to 7.9, not remarkably low, and near infrared imaging detects an old stellar population. However, the measured nitrogen to oxygen ratios log(N/O) < 1.7 are anomalously low for blue compact dwarf galaxies. These objects may be useful for understanding the chemical evolution of nitrogen.

Hoversten, Erik A.; /Johns Hopkins U.

2007-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

An empirical specification of the pesek and saving macroeconomic model  

E-Print Network [OSTI]

AN EvtPIRICAL SPECIFICATION OF THE PESEK AND SAVING EACROECONONIC NODEL A Thesis by Ernest Richard Noser Submitted to the Graduate ColleEe of Texas A ". i University in partial fulfillment of the requirement for the deCree of KASTM OF SCIENCE... of non-accumulating totals for the stocks of equitics, durables, and bonds must be considered as a source of error. 19 TADLE 4 TlDE DZUQ~D FGd DG:;DD Variable e yt FJP r E ? P Coefficient -0. 03 0. 07 -0. 01 -0. 11 -O. G7 31. 09 -0. 53 1. 29...

Moser, Ernest Richard

1970-01-01T23:59:59.000Z

42

An Evaluation of Macroeconomic Models for Use at EIA  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

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

43

Monday 16 June 09:30 Macroeconomics. 14:30 Advanced Econometrics 1 (2 hours).  

E-Print Network [OSTI]

Monday 16 June 09:30 Macroeconomics. 14:30 Advanced Econometrics 1 (2 hours). Tuesday 17 June 09 2 (2 hours). 14:30 Advanced Econometrics 2 (2 hours). Friday 20 June 09:30 Advanced Microeconomics 1

Oxford, University of

44

Syn-collisional delamination in convergent orogens: insights from lithospheric buoyancy and physical modeling  

E-Print Network [OSTI]

buoyant mass within the model lithospheric mantle exhibit no tendency for delamination or wedging, despite a weak horizon at the base of the model crust. This contrast in behavior indicates that the mass distribution within the model lithosphere is a...

Moore, Vernon Michael

2002-01-01T23:59:59.000Z

45

Ocean Heat Transport, Sea Ice, and Multiple Climate States: Insights from Energy Balance Models  

E-Print Network [OSTI]

Several extensions of energy balance models (EBMs) are explored in which (i) sea ice acts to insulate the

Rose, Brian Edward James

46

Theory of hair bundle motion: new insights from the simplest model of hair bundle  

E-Print Network [OSTI]

2 Single Hair bundle motion and a simpleas a model of a single hair bundle motion . . . . . . . . .of mechan- otransduction in hair cells. ” Annu Rev Neurosci,

Ji, Seung Keun

2013-01-01T23:59:59.000Z

47

MODELING X-RAY BINARY EVOLUTION IN NORMAL GALAXIES: INSIGHTS FROM SINGS  

SciTech Connect (OSTI)

We present the largest-scale comparison to date between observed extragalactic X-ray binary (XRB) populations and theoretical models of their production. We construct observational X-ray luminosity functions (oXLFs) using Chandra observations of 12 late-type galaxies from the Spitzer Infrared Nearby Galaxy Survey. For each galaxy, we obtain theoretical XLFs (tXLFs) by combining XRB synthetic models, constructed with the population synthesis code StarTrack, with observational star formation histories (SFHs). We identify highest-likelihood models both for individual galaxies and globally, averaged over the full galaxy sample. Individual tXLFs successfully reproduce about half of the oXLFs, but for some galaxies we are unable to find underlying source populations, indicating that galaxy SFHs and metallicities are not well matched and/or that XRB modeling requires calibration on larger observational samples. Given these limitations, we find that the best models are consistent with a product of common envelope ejection efficiency and central donor concentration {approx_equal} 0.1, and a 50% uniform-50% ''twins'' initial mass-ratio distribution. We present and discuss constituent subpopulations of tXLFs according to donor, accretor, and stellar population characteristics. The galaxy-wide X-ray luminosity due to low-mass and high-mass XRBs, estimated via our best global model tXLF, follows the general trend expected from the L{sub X} -star formation rate and L{sub X} -stellar mass relations of Lehmer et al. Our best models are also in agreement with modeling of the evolution of both XRBs over cosmic time and of the galaxy X-ray luminosity with redshift.

Tzanavaris, P.; Jenkins, L.; Lehmer, B. D.; Hornschemeier, A.; Ptak, A.; Basu-Zych, A. R. [Laboratory for X-ray Astrophysics, NASA/Goddard Space Flight Center, Mail Code 662, Greenbelt, MD 20771 (United States); Fragos, T.; Zezas, A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02139 (United States); Tremmel, M. [Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195-1580 (United States); Kalogera, V. [Center for Interdisciplinary Research and Exploration in Astrophysics and Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (United States)

2013-09-10T23:59:59.000Z

48

New Insight into Integrated Reservoir Management using Top-Down, Intelligent Reservoir Modeling  

E-Print Network [OSTI]

Technique; Application to a Giant and Complex Oil Field in the Middle East Kalantari-Dahaghi A., Mohaghegh S Modeling" by applying the technology on a large and complex Oil field in the Middle East #12;Introduction and WC · Type Curve Matching · (single-well) production History Matching · Volumetric Reserve Estimation

Mohaghegh, Shahab

49

9.7 um Silicate Features in AGNs: New Insights into Unification Models  

E-Print Network [OSTI]

We describe observations of 9.7 um silicate features in 97 AGNs, exhibiting a wide range of AGN types and of X-ray extinction toward the central nuclei. We find that the strength of the silicate feature correlates with the HI column density estimated from fitting the X-ray data, such that low HI columns correspond to silicate emission while high columns correspond to silicate absorption. The behavior is generally consistent with unification models where the large diversity in AGN properties is caused by viewing-angle-dependent obscuration of the nucleus. Radio-loud AGNs and radio-quiet quasars follow roughly the correlation between HI columns and the strength of the silicate feature defined by Seyfert galaxies. The agreement among AGN types suggests a high-level unification with similar characteristics for the structure of the obscuring material. We demonstrate the implications for unification models qualitatively with a conceptual disk model. The model includes an inner accretion disk (< 0.1 pc in radius), a middle disk (0.1-10 pc in radius) with a dense diffuse component and with embedded denser clouds, and an outer clumpy disk (10-300 pc in radius).

Y. Shi; G. H. Rieke; D. C. Hines; V. Gorjian; M. W. Werner; K. Cleary; F. J. Low; P. S. Smith; J. Bouwman

2006-12-15T23:59:59.000Z

50

Honda Gen II Insight HEV Accelerated Testing - August 2012  

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

Honda Gen II Insight HEV Accelerated Testing - August 2012 Two model year 2010 Honda Generation II Insight hybrid electric vehicles (HEVs) entered Accelerated testing during July...

51

Genome sequence analysis of the model grass Brachypodium distachyon: insights into grass genome evolution  

SciTech Connect (OSTI)

Three subfamilies of grasses, the Erhardtoideae (rice), the Panicoideae (maize, sorghum, sugar cane and millet), and the Pooideae (wheat, barley and cool season forage grasses) provide the basis of human nutrition and are poised to become major sources of renewable energy. Here we describe the complete genome sequence of the wild grass Brachypodium distachyon (Brachypodium), the first member of the Pooideae subfamily to be completely sequenced. Comparison of the Brachypodium, rice and sorghum genomes reveals a precise sequence- based history of genome evolution across a broad diversity of the grass family and identifies nested insertions of whole chromosomes into centromeric regions as a predominant mechanism driving chromosome evolution in the grasses. The relatively compact genome of Brachypodium is maintained by a balance of retroelement replication and loss. The complete genome sequence of Brachypodium, coupled to its exceptional promise as a model system for grass research, will support the development of new energy and food crops

Schulman, Al

2009-08-09T23:59:59.000Z

52

The effects of gas-fluid-rock interactions on CO2 injection and storage: Insights from reactive transport modeling  

SciTech Connect (OSTI)

Possible means of reducing atmospheric CO{sub 2} emissions include injecting CO{sub 2} in petroleum reservoirs for Enhanced Oil Recovery or storing CO{sub 2} in deep saline aquifers. Large-scale injection of CO{sub 2} into subsurface reservoirs would induce a complex interplay of multiphase flow, capillary trapping, dissolution, diffusion, convection, and chemical reactions that may have significant impacts on both short-term injection performance and long-term fate of CO{sub 2} storage. Reactive Transport Modeling is a promising approach that can be used to predict the spatial and temporal evolution of injected CO{sub 2} and associated gas-fluid-rock interactions. This presentation will summarize recent advances in reactive transport modeling of CO{sub 2} storage and review key technical issues on (1) the short- and long-term behavior of injected CO{sub 2} in geological formations; (2) the role of reservoir mineral heterogeneity on injection performance and storage security; (3) the effect of gas mixtures (e.g., H{sub 2}S and SO{sub 2}) on CO{sub 2} storage; and (4) the physical and chemical processes during potential leakage of CO{sub 2} from the primary storage reservoir. Simulation results suggest that CO{sub 2} trapping capacity, rate, and impact on reservoir rocks depend on primary mineral composition and injecting gas mixtures. For example, models predict that the injection of CO{sub 2} alone or co-injection with H{sub 2}S in both sandstone and carbonate reservoirs lead to acidified zones and mineral dissolution adjacent to the injection well, and carbonate precipitation and mineral trapping away from the well. Co-injection of CO{sub 2} with H{sub 2}S and in particular with SO{sub 2} causes greater formation alteration and complex sulfur mineral (alunite, anhydrite, and pyrite) trapping, sometimes at a much faster rate than previously thought. The results from Reactive Transport Modeling provide valuable insights for analyzing and assessing the dynamic behaviors of injected CO{sub 2}, identifying and characterizing potential storage sites, and managing injection performance and reducing costs.

Xiao, Y.; Xu, T.; Pruess, K.

2008-10-15T23:59:59.000Z

53

Course title: Sustainable Development and Macroeconomics Lecturer: Dina Barbian, University of Erlangen-Nuremberg  

E-Print Network [OSTI]

1 Course title: Sustainable Development and Macroeconomics Lecturer: Dina Barbian, University: 9-11.30 Introduction to the topic and the case studies Sustainable Development ­ Definition and History Lecture Notes Tuesday: 9-11.30 Sustainable Development and Economic Growth Searching for a new way

54

Estimating the Macroeconomic Rebound Effect in China1 Jiangshan Zhang and C.-Y. Cynthia Lin  

E-Print Network [OSTI]

as follows: 1 1 direct indirectF FF R , (1) #12;where R denotes the rebound effect; F denotes energy Abstract The rebound effect measures the fraction of an energy efficiency improvement that is offset by increased energy consumption. In this paper we use three methods to estimate the macroeconomic rebound

Lin, C.-Y. Cynthia

55

Update on INSIGHTS Development  

SciTech Connect (OSTI)

INSIGHTS is a transformational separate effects testing capability to perform in situ irradiation studies and characterization of the microscale behavior of nuclear fuel materials under a wide variety of in-pile conditions. Separate effects testing including growth, irradiation, and monitoring of these materials, and encompasses the full science based approach for fuels development from the nanoscale to the mesoscale behavior of the sample material and other defects driven by the modeling and simulation efforts of INL.

Not Listed; Eric Burgett

2011-09-01T23:59:59.000Z

56

The macroeconomic effects of oil price shocks : why are the 2000s so different from the 1920s?  

E-Print Network [OSTI]

We characterize the macroeconomic performance of a set of industrialized economies in the aftermath of the oil price shocks of the 1970s and of the last decade, focusing on the differences across episodes. We examine four ...

Blanchard, Olivier

2007-01-01T23:59:59.000Z

57

14.772 Development Economics: Macroeconomics, Spring 2009  

E-Print Network [OSTI]

This course emphasizes dynamic models of growth and development. Topics covered include: migration, modernization, and technological change; static and dynamic models of political economy; the dynamics of income distribution ...

Kremer, Michael

58

Atomic Level Green-Kubo Stress Correlation Function for a Model Crystal: An Insight into Molecular Dynamics Results on a Model Liquid  

E-Print Network [OSTI]

In order to get insight into the connection between the vibrational dynamics and the atomic level Green-Kubo stress correlation function in liquids we consider this connection in a model crystal instead. Of course, vibrational dynamics in liquids and crystals are quite different and it is not expected that the results obtained on a model crystal should be valid for liquids. However, these considerations provide a benchmark to which the results of the previous molecular dynamics simulations can be compared. Thus, assuming that vibrations are plane waves, we derive analytical expressions for the atomic level stress correlation functions in the classical limit and analyze them. These results provide, in particular, a recipe for analysis of the atomic level stress correlation functions in Fourier space and extraction of the wavevector and frequency dependent information. We also evaluate the energies of the atomic level stresses. Obtained energies are significantly smaller than the energies that were obtained in MD simulations of liquids previously. This result suggests that the average energies of the atomic level stresses in liquids and glasses are largely determined by the structural disorder. We discuss this result in the context of equipartition of the atomic level stress energies. Analysis of the previously published data suggests that it is possible to speak about configurational and vibrational contributions to the average energies of the atomic level stresses in a glass state. However, this separation in a liquid state is problematic. We also consider peak broadening in the pair distribution function with increase of distance. We find that peak broadening (by ~40%) occurs due to the transverse vibrational modes, while contribution from the longitudinal modes does not change with distance. Finally, we introduce and consider atomic level transverse current correlation function.

V. A. Levashov

2014-06-23T23:59:59.000Z

59

Applications of Time Series in Finance and Macroeconomics  

E-Print Network [OSTI]

with constant intensity. The last essay applies a dynamic factor model to generate out-of-sample forecasts for the inflation rate in Mexico. Factor models are useful to summarize the information contained in large datasets. We evaluate the role of using a wide...

Ibarra Ramirez, Raul

2011-08-08T23:59:59.000Z

60

Essays on the stock market's reaction to macroeconomic news  

E-Print Network [OSTI]

topapadakis (2002) use a GARCH model of daily equity returnsGDP announcements using a simple GARCH framework for dailybe able to account for GARCH-type behavior of condi- tional

Cenesizoglu, Tolga

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Uncertainty quantification and validation of combined hydrological and macroeconomic analyses.  

SciTech Connect (OSTI)

Changes in climate can lead to instabilities in physical and economic systems, particularly in regions with marginal resources. Global climate models indicate increasing global mean temperatures over the decades to come and uncertainty in the local to national impacts means perceived risks will drive planning decisions. Agent-based models provide one of the few ways to evaluate the potential changes in behavior in coupled social-physical systems and to quantify and compare risks. The current generation of climate impact analyses provides estimates of the economic cost of climate change for a limited set of climate scenarios that account for a small subset of the dynamics and uncertainties. To better understand the risk to national security, the next generation of risk assessment models must represent global stresses, population vulnerability to those stresses, and the uncertainty in population responses and outcomes that could have a significant impact on U.S. national security.

Hernandez, Jacquelynne; Parks, Mancel Jordan; Jennings, Barbara Joan; Kaplan, Paul Garry; Brown, Theresa Jean; Conrad, Stephen Hamilton

2010-09-01T23:59:59.000Z

62

Macroeconomic Study of Construction Firm's Profitability Using Cluster Analysis  

E-Print Network [OSTI]

# 2 Cluster # 3 Alabama (AL) Alaska (AK) Arizona (AZ) Arkansas (AR) California (CA) Colorado (CO) Delaware (DE) Connecticut (CT) District of Columbia (DC) Idaho (ID) Hawaii (HI) Florida (FL) Iowa (IA) Illinois (IL) Georgia (GA) Kansas (KS... by Average labor productivity, it can be observed that clusters can be easily discerned as shown in figure 2. 20 Table 2: Clustering Results for Model 2 Cluster # 1 Cluster # 2 Cluster # 3 Alabama (AL) Arkansas (AR) Alaska (AK) Arizona (AZ...

Arora, Parth

2012-10-19T23:59:59.000Z

63

Interaction of waves and currents with kelp forests (Macrocystis pyrifera): Insights from a dynamically scaled laboratory model  

E-Print Network [OSTI]

a dynamically matched 1/25-scale physical model in a laboratory flume. In experiments with kelp mimics, waves a dynamically scaled laboratory model Johanna H. Rosman,a,* Mark W. Denny,b Robert B. Zeller,c Stephen G between model kelp and water under waves increased wake generation of turbulence, resulting in turbulent

Denny, Mark

64

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 10–25% 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

65

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, VOL. 51, NO. 3, AUGUST 2009 471 New Insights Into Lightning Return-Stroke Models  

E-Print Network [OSTI]

Into Lightning Return-Stroke Models With Specified Longitudinal Current Distribution Grzegorz Maslowski, Member, IEEE, and Vladimir A. Rakov, Fellow, IEEE (Invited Paper) Abstract--We show that any lightning return-stroke-current-source-type) models, it is also unipolar but directed into the channel core. The conversion between LCS and DCS return-stroke

Florida, University of

66

Insights from a Simple Hotelling Model of the World Oil Market C.-Y. Cynthia Lina1  

E-Print Network [OSTI]

data used in this study were acquired with the help of Brian Greene and with funds from the Littauer Kennedy School Pre-Doctoral Fellowship in energy policy. All errors are my own. #12;1 1 INTRODUCTION. In a 1980-1981 study by Stanford University's Energy Modeling Forum of ten prominent models of the world oil

Lin, C.-Y. Cynthia

67

Evolutionary Processes in Economics: Multi-agent Model of Macrogenerations Dynamics  

E-Print Network [OSTI]

Evolutionary Processes in Economics: Multi-agent Model of Macrogenerations Dynamics Kateryna macroeconomic growth as an evolutionary process. Keywords. Economic growth, evolutionary theory, multi]. Our study models the economic growth as an evolutionary process, where the term `macrogeneration

López-Sánchez, Maite

68

Modeling disease-related proteins in Saccharomyces cerevisiae : insights into alpha-synuclein and TorsinA biology  

E-Print Network [OSTI]

The yeast Saccharomyces cerevisiae has long been used to model complex cellular processes. As a eukaryote, much of its fundamental biology is conserved with higher organisms. As a single-celled, genetically tractable ...

Valastyan, Julie S. (Julie Suzanne)

2013-01-01T23:59:59.000Z

69

Approved Module Information for BS3365, 2014/5 Module Title/Name: Macroeconomics Policy Module Code: BS3365  

E-Print Network [OSTI]

on macroeconomic policies 3 Oil and the macroeconomy ? Causes of oil price changes ? Oil prices; investment and depreciation ? Steady state ? Numerical examples 5 Economic Growth 2 ? Savings and investment Direct Investment and Policy (Professor Nigel Driffield) ? Benefits of FDI ? Aspects to FDI Policy

Neirotti, Juan Pablo

70

Precipitation and Air Pollution at Mountain and Plain Stations in Northern China: Insights Gained from Observations and Modeling  

SciTech Connect (OSTI)

We analyzed 40 year data sets of daily average visibility (a proxy for surface aerosol concentration) and hourly precipitation at seven weather stations, including three stations located on the Taihang Mountains, during the summertime in northern China. There was no significant trend in summertime total precipitation at almost all stations. However, light rain decreased, whereas heavy rain increased as visibility decreased over the period studied. The decrease in light rain was seen in both orographic-forced shallow clouds and mesoscale stratiform clouds. The consistent trends in observed changes in visibility, precipitation, and orographic factor appear to be a testimony to the effects of aerosols. The potential impact of large-scale environmental factors, such as precipitable water, convective available potential energy, and vertical wind shear, on precipitation was investigated. No direct links were found. To validate our observational hypothesis about aerosol effects, Weather Research and Forecasting model simulations with spectral-bin microphysics at the cloud-resolving scale were conducted. Model results confirmed the role of aerosol indirect effects in reducing the light rain amount and frequency in the mountainous area for both orographic-forced shallow clouds and mesoscale stratiform clouds and in eliciting a different response in the neighboring plains. The opposite response of light rain to the increase in pollution when there is no terrain included in the model suggests that orography is likely a significant factor contributing to the opposite trends in light rain seen in mountainous and plain areas.

Guo, Jianping; Deng, Minjun; Fan, Jiwen; Li, Zhanqing; Chen, Qian; Zhai, Panmao; Dai, Zhijian; Li, Xiaowen

2014-04-27T23:59:59.000Z

71

Insights Into the P-To-Q Conversion in the Catalytic Cycle of Methane Monooxygenase From a Synthetic Model System  

SciTech Connect (OSTI)

For the catalytic cycle of soluble methane monooxygenase (sMMO), it has been proposed that cleavage of the O-O bond in the ({mu}-peroxo)diiron(III) intermediate P gives rise to the diiron(IV) intermediate Q with an Fe{sub 2}({mu}-O){sub 2} diamond core, which oxidizes methane to methanol. As a model for this conversion, ({mu}-oxo) diiron(III) complex 1 ([Fe{sup III}{sub 2}({mu}-O)({mu}-O{sub 2}H{sub 3})(L){sub 2}]{sup 3+}, L = tris(3,5-dimethyl-4-methoxypyridyl-2-methyl)amine) has been treated consecutively with one eq of H{sub 2}O{sub 2} and one eq of HClO{sub 4} to form 3 ([Fe{sup IV}{sub 2}({mu}-O){sub 2}(L){sub 2}]{sup 4+}). In the course of this reaction a new species, 2, can be observed before the protonation step; 2 gives rise to a cationic peak cluster by ESI-MS at m/z 1,399, corresponding to the [Fe{sub 2}O{sub 3}L{sub 2}H](OTf){sub 2}{sup +} ion in which 1 oxygen atom derives from 1 and the other two originate from H{sub 2}O{sub 2}. Moessbauer studies of 2 reveal the presence of two distinct, exchange coupled iron(IV) centers, and EXAFS fits indicate a short Fe-O bond at 1.66 {angstrom} and an Fe-Fe distance of 3.32 {angstrom}. Taken together, the spectroscopic data point to an HO-Fe{sup IV}-O-Fe{sup IV} = O core for 2. Protonation of 2 results in the loss of H{sub 2}O and the formation of 3. Isotope labeling experiments show that the [Fe{sup IV}{sub 2}({mu}-O){sub 2}] core of 3 can incorporate both oxygen atoms from H{sub 2}O{sub 2}. The reactions described here serve as the only biomimetic precedent for the conversion of intermediates P to Q in the sMMO reaction cycle and shed light on how a peroxodiiron(III) unit can transform into an [Fe{sup IV}{sub 2}({mu}-O){sub 2}] core.

Xue, G.; Fiedler, A.T.; Martinho, M.; Munck, E.; Que, L.; Jr.

2009-05-28T23:59:59.000Z

72

ImSET 3.1: Impact of Sector Energy Technologies Model Description and User's Guide  

SciTech Connect (OSTI)

This 3.1 version of the Impact of Sector Energy Technologies (ImSET) model represents the next generation of the previously-built ImSET model (ImSET 2.0) that was developed in 2005 to estimate the macroeconomic impacts of energy-efficient technology in buildings. In particular, a special-purpose version of the Benchmark National Input-Output (I-O) model was designed specifically to estimate the national employment and income effects of the deployment of Office of Energy Efficiency and Renewable Energy (EERE)–developed energy-saving technologies. In comparison with the previous versions of the model, this version features the use of the U.S. Bureau of Economic Analysis 2002 national input-output table and the central processing code has been moved from the FORTRAN legacy operating environment to a modern C++ code. ImSET is also easier to use than extant macroeconomic simulation models and incorporates information developed by each of the EERE offices as part of the requirements of the Government Performance and Results Act. While it does not include the ability to model certain dynamic features of markets for labor and other factors of production featured in the more complex models, for most purposes these excluded features are not critical. The analysis is credible as long as the assumption is made that relative prices in the economy would not be substantially affected by energy efficiency investments. In most cases, the expected scale of these investments is small enough that neither labor markets nor production cost relationships should seriously affect national prices as the investments are made. The exact timing of impacts on gross product, employment, and national wage income from energy efficiency investments is not well-enough understood that much special insight can be gained from the additional dynamic sophistication of a macroeconomic simulation model. Thus, we believe that this version of ImSET is a cost-effective solution to estimating the economic impacts of the development of energy-efficient technologies.

Scott, Michael J.; Livingston, Olga V.; Balducci, Patrick J.; Roop, Joseph M.; Schultz, Robert W.

2009-05-22T23:59:59.000Z

73

Macroeconomic Dynamics in a Model of Goods, Labor and Credit Market Frictions  

E-Print Network [OSTI]

, bridging the gap with the data both in terms of persistence and volatility. Since its inception the Real process: in the US, the retail sector, for instance, represents more than 5 percent of GDP, suggesting of prospecting consumers and products on the goods market; and the ratio of investment projects to banks

Paris-Sud XI, Université de

74

Incorporating Macroeconomic and Firm-Level Uncertainties in Stochastic Pro-Forma Financial Modeling  

E-Print Network [OSTI]

. University Blvd, Suite 555, Denver, CO 80208- 8921. Phone: 303-871-4235. Fax: 303-871-4580. ikhindan

75

Macroeconomic models of consumer demand for consumer packaged goods in Asia  

E-Print Network [OSTI]

CPGCo, a global manufacturer of consumer packaged goods, has had tremendous difficulty in producing accurate forecasts for its products in developing markets. The problem was especially apparent during the global economic ...

Mau, Jonathan

2012-01-01T23:59:59.000Z

76

Towards a reconstruction of macroeconomics using a stock flow consistent (SFC) model  

E-Print Network [OSTI]

. Balancing ; (1) (2) current (3) capital (4) current (5)capital (6) item (7) 1. Inventories +I -I 0 2. Fixed capital +K -K 0 3. Cash +HP +HB -H 0 4. Current accounts +MC -MC 0 5. Deposit accounts +MD -MD 0 6. Bills +BP +BB... of interest on, respectively, bills, money, commercial bills and loans. (**) V (wealth) = NW+DG+I+K ; NW=net worth of firms, DG=government debt, I=inventories, K=fixed capital stock 4 postulated production sector, which we may describe...

Godley, Wynne

77

Consumer Energy Use Insights  

E-Print Network [OSTI]

Pike Powers Lab and Center for Commercialization Pecan Street Research Institute Data driven insights from the nation’s deepest ever customer energy research ESL-KT-13-12-23 CATEE 2013: Clean Air Through Energy Efficiency Conference, San... Antonio, Texas Dec. 16-18 5:15 pm! ! ! March 9, 2011! 31,262 MW! ! ! August 3, 2011! 68,416 MW Source: ERCOT 35,000 70,000 Mar 9, 2011 Aug 3, 2011 Residential Small! commercial Large C&I 51.2 % 25.2 % 23.7 % Residential Small! commercial Large C&I 27...

McCracken, B.

2013-01-01T23:59:59.000Z

78

European Economic Review 18 11982)243-248. Norfh-Holle,nd Publishing Company THE OIL SHOCKS AND MACROECONOMIC ADJUSTMEN'F IN  

E-Print Network [OSTI]

the oil price increases a~d pre-ta~: profitability remained strong throughout the 1970s. Demand factorsEuropean Economic Review 18 11982)243-248. Norfh-Holle,nd Publishing Company THE OIL SHOCKS importance of supply versus demand factors in r,x:ent U.S. macroeconomic history remains in strong dispute

79

DECIPHERING THE EVOLUTIONARY HISTORY OF THE MONTANE NEW GUINEA AVIFAUNA: COMPARATIVE PHYLOGEOGRAPHY AND INSIGHTS FROM PALEODISTRIBUTIONAL MODELING IN A DYNAMIC LANDSCAPE  

E-Print Network [OSTI]

Integrating comparative phylogeographic methods with taxon-specific paleodistributional modeling provides a powerful approach for assessing historical environmental factors that have contributed to patterns of population ...

Benz, Brett W.

2011-12-31T23:59:59.000Z

80

Stock market volatility and price discovery : three essays on the effect of macroeconomic information  

E-Print Network [OSTI]

Modified GARCH (1,1) Model with Non Persistent AnnouncementModified GARCH (1,1) Model with Non Persistent AnnouncementModified GARCH (1,1) Model with Non Persistent Announcement

Rangel, Jose Gonzalo

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

AVTA: Honda Insight HEV 2010 Testing Results  

Broader source: Energy.gov [DOE]

The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. The following reports describe results of testing done on a 2010 Honda Insight hybrid-electric vehicle. Baseline and other data collected at Idaho National Laboratory is in the attached documents. Baseline and battery testing data collected at Argonne National Laboratory is available in summary and CSV form on the Argonne Downloadable Dynometer Database site (http://www.transportation.anl.gov/D3/2010_honda_insight.html). Taken together, these reports give an overall view of how this vehicle functions under extensive testing.

82

Insights from UT Austin Energy Poll  

Broader source: Energy.gov [DOE]

Insights from UT Austin Energy Poll, Insights from UT Austin Energy Poll on U.S. Consumer Attitudes, July 24, 2013, Sheril Kirshenbaum, director of The Energy Poll.

83

Gravity modeling of the Song Hong basin: an insight into its crustal structure and implication for the formation of the basin  

E-Print Network [OSTI]

3-D gravity inversion and rift stretching models are used in the Song Hong basin to determine the general configuration of the upper mantle and the mechanism for its formation in the region. The basin approximately 200 km wide by 600 km in length...

Nguyen, Vu Giang

1996-01-01T23:59:59.000Z

84

Ice Formation in Arctic Mixed-Phase Clouds: Insights from a 3-D Cloud-Resolving Model with Size-Resolved Aerosol and Cloud Microphysics  

SciTech Connect (OSTI)

The single-layer mixed-phase clouds observed during the Atmospheric Radiation Measurement (ARM) program’s Mixed-Phase Arctic Cloud Experiment (MPACE) are simulated with a 3-dimensional cloud-resolving model the System for Atmospheric Modeling (SAM) coupled with an explicit bin microphysics scheme and a radar-lidar simulator. Two possible ice enhancement mechanisms – activation of droplet evaporation residues by condensation-followed-by-freezing and droplet freezing by contact freezing inside-out, are scrutinized by extensive comparisons with aircraft and radar and lidar measurements. The locations of ice initiation associated with each mechanism and the role of ice nuclei (IN) in the evolution of mixed-phase clouds are mainly addressed. Simulations with either mechanism agree well with the in-situ and remote sensing measurements on ice microphysical properties but liquid water content is slightly underpredicted. These two mechanisms give very similar cloud microphysical, macrophysical, dynamical, and radiative properties, although the ice nucleation properties (rate, frequency and location) are completely different. Ice nucleation from activation of evaporation nuclei is most efficient near cloud top areas concentrated on the edges of updrafts, while ice initiation from the drop freezing process has no significant location preference (occurs anywhere that droplet evaporation is significant). Both enhanced nucleation mechanisms contribute dramatically to ice formation with ice particle concentration of 10-15 times higher relative to the simulation without either of them. The contribution of ice nuclei (IN) recycling from ice particle evaporation to IN and ice particle concentration is found to be very significant in this case. Cloud can be very sensitive to IN initially and form a nonquilibrium transition condition, but become much less sensitive as cloud evolves to a steady mixed-phase condition. The parameterization of Meyers et al. [1992] with the observed MPACE IN concentration is able to predict the observed mixed-phase clouds reasonably well. This validation may facilitate the application of this parameterization in the cloud and climate models to simulate Arctic clouds.

Fan, Jiwen; Ovtchinnikov, Mikhail; Comstock, Jennifer M.; McFarlane, Sally A.; Khain, Alexander

2009-02-27T23:59:59.000Z

85

Three Essays on Price Dynamics and Causations among Energy Markets and Macroeconomic Information  

E-Print Network [OSTI]

This dissertation examines three important issues in energy markets: price dynamics, information flow, and structural change. We discuss each issue in detail, building empirical time series models, analyzing the results, and interpreting...

Hong, Sung Wook 1977-

2012-09-20T23:59:59.000Z

86

The Great Shift: Macroeconomic projections For the World Economy at the 2050 Horizon  

E-Print Network [OSTI]

of living, measured through GDP per capita in purchasing power parity, China would still lag 10 percent function that includes capital, labour and energy. We improve on the literature by accounting for the energy constraint through dynamic modelling of energy productivity, and departing from the assumptions

Paris-Sud XI, Université de

87

An agent-based computational model for bank formation and interbank networks  

E-Print Network [OSTI]

An agent-based computational model for bank formation and interbank networks Matheus R. Grasselli, interdependence, interaction, networks, and trust", all of which are absent from economic models where utility) intellectual history of the quest to base macroeconomic theory on solid micro foundation, culminating

Tesfatsion, Leigh

88

Application Insight Through Performance Modeling Gabriel Marin  

E-Print Network [OSTI]

that estimate the maximum gain expected from tuning different parts of an application, or from increasing the number of machine resources. We show how this metric helped iden- tify a bottleneck in the ASCI Sweep3D benchmark where the lack of instruction-level parallelism limited performance. Transforming one frequently

Marin, Gabriel

89

Engineering Insights 2006 Complex Fluids Design Consortium  

E-Print Network [OSTI]

Engineering Insights 2006 Complex Fluids Design Consortium (CFDC) www.mrl.ucsb.edu/cfdc Overview;Engineering Insights 2006 Objectives -- continued · Create a world-class center for complex fluid and soft and Research Highlights Glenn Fredrickson October 18, 2006 #12;Engineering Insights 2006 What is the CFDC

California at Santa Barbara, University of

90

Optimization of California's Water Supply System: Results and Insights  

E-Print Network [OSTI]

headings: Optimization; California; Water supply; Water shortage. Introduction Water is scarceOptimization of California's Water Supply System: Results and Insights Marion W. Jenkins1 ; Jay R-engineering optimization model of California's water supply system. The results of this 4-year effort illustrate the value

Pasternack, Gregory B.

91

Voices of Experience | Insights into Advanced Distribution Management...  

Office of Environmental Management (EM)

Voices of Experience | Insights into Advanced Distribution Management Systems (February 2015) Voices of Experience | Insights into Advanced Distribution Management Systems...

92

Energy Insight | Open Energy Information  

Open Energy Info (EERE)

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

93

Essays in macroeconomics  

E-Print Network [OSTI]

2.2.4 Multivariate GARCH . . . . . . . . . .US quarterly growth volatility: GARCH(1,1) . . . . . . . .to output volatility: GARCH(1,1) . . Correlation with US

Daula, Thomas Anthony; Daula, Thomas Anthony

2012-01-01T23:59:59.000Z

94

Macroeconomic Activity Module  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

explain the growth in GDP: the growth rate of nonfarm employment and the rate of productivity change associated with employment. As Table 2.1 indicates, in the Reference case,...

95

Macroeconomic Activity Module  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

explain the growth in GDP: the growth rate of nonfarm employment and the rate of productivity change associated with employment. As Table 2.1 indicates, real GDP growth slows...

96

Essays on international macroeconomics  

E-Print Network [OSTI]

This thesis examines the impact of terms of trade shocks on commodity-exporting small, open economies. The first chapter examines whether households, firms and policymakers in these economies can distinguish between temporary ...

Rees, Daniel

2013-01-01T23:59:59.000Z

97

Three essays in macroeconomics  

E-Print Network [OSTI]

This thesis is a collection of three essays on international trade and economic growth. Chapter 1 analyzes the dynamic gains from trade in a Hecksher-Ohlin economy with endogenous factor accumulation. In a framework where ...

Auer, Raphael Anton Maximilian Peter Gabriel

2006-01-01T23:59:59.000Z

98

Essays on Macroeconomics  

E-Print Network [OSTI]

and volatility can lead to information being used in aexternalities lead to information being used inefficientlywhere public information can lead to welfare losses because

Llosa, Luis Gonzalo

2012-01-01T23:59:59.000Z

99

Comparative Analysis of Modeling Studies on China's Future Energy and Emissions Outlook  

SciTech Connect (OSTI)

The past decade has seen the development of various scenarios describing long-term patterns of future Greenhouse Gas (GHG) emissions, with each new approach adding insights to our understanding of the changing dynamics of energy consumption and aggregate future energy trends. With the recent growing focus on China's energy use and emission mitigation potential, a range of Chinese outlook models have been developed across different institutions including in China's Energy Research Institute's 2050 China Energy and CO2 Emissions Report, McKinsey & Co's China's Green Revolution report, the UK Sussex Energy Group and Tyndall Centre's China's Energy Transition report, and the China-specific section of the IEA World Energy Outlook 2009. At the same time, the China Energy Group at Lawrence Berkeley National Laboratory (LBNL) has developed a bottom-up, end-use energy model for China with scenario analysis of energy and emission pathways out to 2050. A robust and credible energy and emission model will play a key role in informing policymakers by assessing efficiency policy impacts and understanding the dynamics of future energy consumption and energy saving and emission reduction potential. This is especially true for developing countries such as China, where uncertainties are greater while the economy continues to undergo rapid growth and industrialization. A slightly different assumption or storyline could result in significant discrepancies among different model results. Therefore, it is necessary to understand the key models in terms of their scope, methodologies, key driver assumptions and the associated findings. A comparative analysis of LBNL's energy end-use model scenarios with the five above studies was thus conducted to examine similarities and divergences in methodologies, scenario storylines, macroeconomic drivers and assumptions as well as aggregate energy and emission scenario results. Besides directly tracing different energy and CO{sub 2} savings potential back to the underlying strategies and combination of efficiency and abatement policy instruments represented by each scenario, this analysis also had other important but often overlooked findings.

Zheng, Nina; Zhou, Nan; Fridley, David

2010-09-01T23:59:59.000Z

100

Decision insight into stakeholder conflict for ERN.  

SciTech Connect (OSTI)

Participatory modeling has become an important tool in facilitating resource decision making and dispute resolution. Approaches to modeling that are commonly used in this context often do not adequately account for important human factors. Current techniques provide insights into how certain human activities and variables affect resource outcomes; however, they do not directly simulate the complex variables that shape how, why, and under what conditions different human agents behave in ways that affect resources and human interactions related to them. Current approaches also do not adequately reveal how the effects of individual decisions scale up to have systemic level effects in complex resource systems. This lack of integration prevents the development of more robust models to support decision making and dispute resolution processes. Development of integrated tools is further hampered by the fact that collection of primary data for decision-making modeling is costly and time consuming. This project seeks to develop a new approach to resource modeling that incorporates both technical and behavioral modeling techniques into a single decision-making architecture. The modeling platform is enhanced by use of traditional and advanced processes and tools for expedited data capture. Specific objectives of the project are: (1) Develop a proof of concept for a new technical approach to resource modeling that combines the computational techniques of system dynamics and agent based modeling, (2) Develop an iterative, participatory modeling process supported with traditional and advance data capture techniques that may be utilized to facilitate decision making, dispute resolution, and collaborative learning processes, and (3) Examine potential applications of this technology and process. The development of this decision support architecture included both the engineering of the technology and the development of a participatory method to build and apply the technology. Stakeholder interaction with the model and associated data capture was facilitated through two very different modes of engagement, one a standard interface involving radio buttons, slider bars, graphs and plots, while the other utilized an immersive serious gaming interface. The decision support architecture developed through this project was piloted in the Middle Rio Grande Basin to examine how these tools might be utilized to promote enhanced understanding and decision-making in the context of complex water resource management issues. Potential applications of this architecture and its capacity to lead to enhanced understanding and decision-making was assessed through qualitative interviews with study participants who represented key stakeholders in the basin.

Siirola, John; Tidwell, Vincent Carroll; Benz, Zachary O.; Stansbury, Melanie; Richards, Elizabeth H.; Turnley, Jessica Glicken (Galisteo Consulting); Warrender, Christina E.; Morrow, James Dan

2012-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Insight into Alzheimer's, cancer, anemia gleaned from ribosome...  

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

Insights from ribosome research Insight into Alzheimer's, cancer, anemia gleaned from ribosome research Groundbreaking study of the human ribosome reveals tiny molecular machine is...

102

ALS Gives Chevron Scientists New Insights into Corrosion Resistance  

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

ALS Gives Chevron Scientists New Insights into Corrosion Resistance ALS Gives Chevron Scientists New Insights into Corrosion Resistance Print Thursday, 25 July 2013 13:44 In the...

103

The Inhibitor DBMIB Provides Insight into the Functional Architecture...  

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

The Inhibitor DBMIB Provides Insight into the Functional Architecture of the Qo Site in the Cytochrome b(6)f Complex . The Inhibitor DBMIB Provides Insight into the Functional...

104

RCx Insights and Best Practices from Utilities  

Broader source: Energy.gov [DOE]

Presentation covers the RCx Insights and Best Practices from Utilities and is given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Rapid City, South Dakota.

105

Please cite this article in press as: Hallegatte, S. et al., Business cycles, bifurcations and chaos in a neo-classical model with investment dynamics, Journal of Economic Behavior and Organization (2007), doi:10.1016/j.jebo.2007.05.001  

E-Print Network [OSTI]

B.V. All rights reserved. Keywords: Macroeconomic dynamics; Non-equilibrium modeling; BusinessPlease cite this article in press as: Hallegatte, S. et al., Business cycles, bifurcations and chaos in a neo-classical model with investment dynamics, Journal of Economic Behavior and Organization

Ghil, Michael

106

Qualitative insights on fundamental mechanics  

E-Print Network [OSTI]

The gap between classical mechanics and quantum mechanics has an important interpretive implication: the Universe must have an irreducible fundamental level, which determines the properties of matter at higher levels of organization. We show that the main parameters of any fundamental model must be theory-independent. They cannot be predicted, because they cannot have internal causes. However, it is possible to describe them in the language of classical mechanics. We invoke philosophical reasons in favor of a specific model, which treats particles as sources of real waves. Experimental considerations for gravitational, electromagnetic, and quantum phenomena are outlined.

G. N. Mardari

2006-11-10T23:59:59.000Z

107

BLUE VIEW VISION INSIGHT! Good news--your vision plan  

E-Print Network [OSTI]

WELCOME TO BLUE VIEW VISION INSIGHT! Good news--your vision plan is flexible and easy to use, your discounts, and much more! Blue View Vision InsightSM University of California Student Health Insurance Plan (UC SHIP) 2013/14 Your Blue View Vision Insight Network Blue View Vision Insight offers you

California at Santa Cruz, University of

108

BLUE VIEW VISION INSIGHT! Good news--your vision plan  

E-Print Network [OSTI]

WELCOME TO BLUE VIEW VISION INSIGHT! Good news--your vision plan is flexible and easy to use, your discounts, and much more! Blue View Vision InsightSM University of California Student Health Insurance Plan (UC SHIP) 2012/13 Your Blue View Vision Insight Network Blue View Vision Insight offers you

Barrett, Jeffrey A.

109

Atomistic insights into aqueous corrosion of copper.  

SciTech Connect (OSTI)

Corrosion is a fundamental problem in electrochemistry and represents a mode of failure of technologically important materials. Understanding the basic mechanism of aqueous corrosion of metals such as Cu in presence of halide ions is hence essential. Using molecular dynamics simulations incorporating reactive force-field (ReaxFF), the interaction of copper substrates and chlorine under aqueous conditions has been investigated. These simulations incorporate effects of proton transfer in the aqueous media and are suitable for modeling the bond formation and bond breakage phenomenon that is associated with complex aqueous corrosion phenomena. Systematic investigation of the corrosion process has been carried out by simulating different chlorine concentration and solution states. The structural and morphological differences associated with metal dissolution in the presence of chloride ions are evaluated using dynamical correlation functions. The simulated atomic trajectories are used to analyze the charged states, molecular structure and ion density distribution which are utilized to understand the atomic scale mechanism of corrosion of copper substrates under aqueous conditions. Increased concentration of chlorine and higher ambient temperature were found to expedite the corrosion of copper. In order to study the effect of solution states on the corrosion resistance of Cu, partial fractions of proton or hydroxide in water were configured, and higher corrosion rate at partial fraction hydroxide environment was observed. When the Cl{sup -} concentration is low, oxygen or hydroxide ion adsorption onto Cu surface has been confirmed in partial fraction hydroxide environment. Our study provides new atomic scale insights into the early stages of aqueous corrosion of metals such as copper.

Jeon, B.; Sankaranarayanan, S. K. R. S.; van Duin, A. C. T.; Ramanathan, S. (Center for Nanoscale Materials); (Harvard Univ.); (Penn State Univ.)

2011-06-21T23:59:59.000Z

110

Monetary Policy and Dark Corners in a stylized Agent-Based Model  

E-Print Network [OSTI]

We generalise the stylised macroeconomic Agent-Based model introduced in "Tipping Points in Macroeconomic Agent Based Models" [JEDC 50, 29-61 (2015)], with the aim of investigating the role and efficacy of monetary policy of a 'Central Bank', that sets the interest rate such as to steer the economy towards a prescribed inflation and unemployment level. Our major finding is that provided its policy is not too aggressive (in a sense detailed in the paper) the Central Bank is successful in achieving its goals. However, the existence of different equilibrium states of the economy, separated by phase boundaries (or "dark corners"), can cause the monetary policy itself to trigger instabilities and be counter-productive. In other words, the Central Bank must navigate in a narrow window: too little is not enough, too much leads to instabilities and wildly oscillating economies. This conclusion strongly contrasts with the prediction of DSGE models.

Gualdi, Stanislao; Zamponi, Francesco; Bouchaud, Jean-Philippe

2015-01-01T23:59:59.000Z

111

NEW INSIGHTS INTO BRAIN SWELLING AFTER STROKE  

E-Print Network [OSTI]

NEW INSIGHTS INTO BRAIN SWELLING AFTER STROKE W Taylor Kimberly MD PhD 6 May 2013 #12;OBJECTIVES · Background: introduction to stroke · Mechanism: types of cerebral edema · Specific target: preclinical data-Pilot imaging and plasma biomarkers · Next steps: GAMES-RP #12;BACKGROUND · 800,000 strokes occur each year · 4

Sabatini, David M.

112

Insights from Agricultural GHG Offset studies  

E-Print Network [OSTI]

Sequestration MMt arising at an offset price giving $/tonne carbon equiv ·Many contributions ·DifferentInsights from Agricultural GHG Offset studies Bruce A. McCarl Regents Professor of Agricultural Economics Texas A&M University Presented at EPRI Workshop on Terrestrial Carbon Sequestration Alexandria VA

McCarl, Bruce A.

113

Academy Insights Vol. 4, No. 10  

E-Print Network [OSTI]

Academy Insights Vol. 4, No. 10 Medical Education Fellows Selected for 2014-2015 Twenty HMS faculty-2015. They were selected on a competitive basis by four fellowship programs: the HMS Academy Fellowships, curriculum development, assessment, and feedback. The Academy Fellowship in Medical Education, sponsored

Goodrich, Lisa V.

114

Insights from US ITER: Strategies for Accelerating  

E-Print Network [OSTI]

Insights from US ITER: Strategies for Accelerating Fusion Energy as a Project Ned Sauthoff US ITER Project Manager SOFE Town Hall Meeting | June 27, 2011 #12;1. Treat fusion energy as a project, rather than a program. Mission: ·Rapid materials and fusion systems development, leading

115

Role of positive ions on the surface production of negative ions in a fusion plasma reactor type negative ion source—Insights from a three dimensional particle-in-cell Monte Carlo collisions model  

SciTech Connect (OSTI)

Results from a 3D self-consistent Particle-In-Cell Monte Carlo Collisions (PIC MCC) model of a high power fusion-type negative ion source are presented for the first time. The model is used to calculate the plasma characteristics of the ITER prototype BATMAN ion source developed in Garching. Special emphasis is put on the production of negative ions on the plasma grid surface. The question of the relative roles of the impact of neutral hydrogen atoms and positive ions on the cesiated grid surface has attracted much attention recently and the 3D PIC MCC model is used to address this question. The results show that the production of negative ions by positive ion impact on the plasma grid is small with respect to the production by atomic hydrogen or deuterium bombardment (less than 10%)

Fubiani, G.; Boeuf, J. P. [Université de Toulouse, UPS, INPT, LAPLACE (Laboratoire Plasma et Conversion d'Energie), 118 route de Narbonne, F-31062 Toulouse cedex 9 (France) [Université 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)

2013-11-15T23:59:59.000Z

116

Structural Insight into RNA Hairpin Folding Intermediates Gregory R. Bowman,  

E-Print Network [OSTI]

on the Folding@home infrastructure to obtain better sampling and, therefore, greater insight into RNA folding

Guibas, Leonidas J.

117

Economics definitions, methods, models, and analysis procedures for Homeland Security applications.  

SciTech Connect (OSTI)

This report gives an overview of the types of economic methodologies and models used by Sandia economists in their consequence analysis work for the National Infrastructure Simulation&Analysis Center and other DHS programs. It describes the three primary resolutions at which analysis is conducted (microeconomic, mesoeconomic, and macroeconomic), the tools used at these three levels (from data analysis to internally developed and publicly available tools), and how they are used individually and in concert with each other and other infrastructure tools.

Ehlen, Mark Andrew; Loose, Verne William; Vargas, Vanessa N.; Smith, Braeton J.; Warren, Drake E.; Downes, Paula Sue; Eidson, Eric D.; Mackey, Greg Edward

2010-01-01T23:59:59.000Z

118

Insights from Agricultural and Forestry GHG Offset Bruce A. McCarl  

E-Print Network [OSTI]

Insights from Agricultural and Forestry GHG Offset Studies Bruce A. McCarl Regents Professor EPA but with contributions from USDA and DOE. Presented at the EPRI Workshop on Terrestrial Carbon Agricultural and Forestry GHG Offset Studies that Might Influence IAM Modeling," that will appear in the book

McCarl, Bruce A.

119

New Insight into Photoalignment of Liquid Crystals on Coumarin-Containing Polymer Films  

E-Print Network [OSTI]

and Laboratory for Laser Energetics, UniVersity of Rochester, 240 East RiVer Road, Rochester, New York 14623New Insight into Photoalignment of Liquid Crystals on Coumarin-Containing Polymer Films Chunki Kim order predicted by the kinetic model, and the energetics of molecular interaction. Introduction

Chen, Shaw H.

120

Economic Model For a Return on Investment Analysis of United States Government High Performance Computing (HPC) Research and Development (R & D) Investment  

SciTech Connect (OSTI)

This study investigated how high-performance computing (HPC) investments can improve economic success and increase scientific innovation. This research focused on the common good and provided uses for DOE, other government agencies, industry, and academia. The study created two unique economic models and an innovation index: 1 A macroeconomic model that depicts the way HPC investments result in economic advancements in the form of ROI in revenue (GDP), profits (and cost savings), and jobs. 2 A macroeconomic model that depicts the way HPC investments result in basic and applied innovations, looking at variations by sector, industry, country, and organization size. ? A new innovation index that provides a means of measuring and comparing innovation levels. Key findings of the pilot study include: IDC collected the required data across a broad set of organizations, with enough detail to create these models and the innovation index. The research also developed an expansive list of HPC success stories.

Joseph, Earl C.; Conway, Steve; Dekate, Chirag

2013-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Exascale Insights (2011) | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofofOxford SiteToledoSamplingProcess | NationalAboutInsights (2011) |

122

BAYESIAN INSIGHTS ON DISCLOSURE LIMITATION: MASK OR IMPUTE?  

SciTech Connect (OSTI)

Statistical agencies seek to disseminate useful data while keeping low the risk of statistical confidentiality disclosure. Recognizing that reidentification of data is generally inadequate to protect its confidentiality against attack by a data snooper, agencies restrict the data they release for general use. Typically, these restricted data procedures have involved transformation or masking of the original, collected data through such devices as adding noise, topcoding, data swapping, and recoding. Recently, proposals have been put forth for the release of synthetic data, simulated from models constructed from the original data. This paper gives a framework for the comparison of masking and synthetic data as two approaches to disclosure limitation. Particular attention is paid to data utility and disclosure risk. Examples of instantiation of masking and of synthetic data construction are provided to illustrate the concepts. Particular attention is paid to data swapping. Insights drawn from the Bayesian paxadigm are provided.

S. KELLER-MCNULTY; G. DUNCAN

2000-10-01T23:59:59.000Z

123

Essays on Open Economy Macroeconomics  

E-Print Network [OSTI]

of Philosophy in Economics by Mi Lu June 2013 DissertationArnott Jana Grittersova Aman Ullah Copyright by Mi Lu TheDissertation of Mi Lu is approved: Committee Chairperson

Lu, Mi

2013-01-01T23:59:59.000Z

124

Essays in Macroeconomics and Finance  

E-Print Network [OSTI]

3, 14, pages 325–332. Huizinga, John and Frederic Mishkin,variables (Mishkin (1981) and Huizinga and Mishkin (1986)).

Khramov, Vadim

2013-01-01T23:59:59.000Z

125

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

reserves. In the data, crude oil reserve addi- tions consistForce and Proven Reserves in the Venezuelan Oil Industry .such as crude oil production, proved reserves, new reserves,

CAKIR, NIDA

2013-01-01T23:59:59.000Z

126

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

the Oil Industry . . . . . . . . . . . . . . . . . . . . . .in the Venezuelan Oil Industry . . . . . . . . . . . . .and Productivity: Evidence from the Oil Industry . .

CAKIR, NIDA

2013-01-01T23:59:59.000Z

127

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

Oil Production . . . . . . . . . . . . . . . . . . . . . . . . . . .Oil Production in Venezuela and Mexico . . . . . . . . . .Oil Production and Productivity in Venezuela and

CAKIR, NIDA

2013-01-01T23:59:59.000Z

128

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

is described below. Data Crude oil production data is fromproductivity measure is crude oil production per worker, andwhich is measured as crude oil production per worker, is

CAKIR, NIDA

2013-01-01T23:59:59.000Z

129

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

Venezuelan Oil Industry Total Wells Drilled and InvestmentWells Drilled and Investment in the Venezuelan Oil Industryopenness of the oil sector to foreign investment contributes

CAKIR, NIDA

2013-01-01T23:59:59.000Z

130

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

Oil Production in Venezuela and Mexico . . . . . . . . . .Venezuela with Mexico, another major oil pro- ducing countryOil Production and Productivity in Venezuela and Mexico . . . . . . . .

CAKIR, NIDA

2013-01-01T23:59:59.000Z

131

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

Oil Production in Venezuela and Mexico . . . . . . . . . .Oil Production and Productivity in Venezuela and Mexico . . . . . . . .2.6: Oil Production in Venezuela and Mexico 350 Productivity

CAKIR, NIDA

2013-01-01T23:59:59.000Z

132

Essays on Macroeconomics and Oil  

E-Print Network [OSTI]

Oil Production in Venezuela and Mexico . . . . . . . . . .and Productivity in Venezuela and Mexico . . . . . . . . OilEllner, ”Organized Labor in Venezuela 1958-1991: Behavior

CAKIR, NIDA

2013-01-01T23:59:59.000Z

133

Applying insights from repository safety assessments.  

SciTech Connect (OSTI)

Despite decades of international consensus that deep geological disposal is the best option for permanent management of long-lived high-level radioactive wastes, no repositories for used nuclear fuel or high-level waste are in operation. Detailed long-term safety assessments have been completed worldwide for a wide range of repository designs and disposal concepts, however, and valuable insights from these assessments are available to inform future decisions about managing radioactive wastes. Qualitative comparisons among the existing safety assessments for disposal concepts in clay, granite, salt, and unsaturated volcanic tuff show how different geologic settings can be matched with appropriate engineered barrier systems to provide a high degree of confidence in the long-term safety of geologic disposal. Review of individual assessments provides insights regarding the release pathways and radionuclides that are most likely to contribute to estimated doses to humans in the far future for different disposal concepts, and can help focus research and development programs to improve management and disposal technologies. Lessons learned from existing safety assessments may be particularly relevant for informing decisions during the process of selecting potential repository sites.

Swift, Peter N.

2010-03-01T23:59:59.000Z

134

Section 1603 Treasury Grant Expiration: Industry Insight on Financing...  

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

1603 Treasury Grant Expiration: Industry Insight on Financing and Market Implications Michael Mendelsohn National Renewable Energy Laboratory John Harper Birch Tree Capital, LLC...

135

achilles insight qus: Topics by E-print Network  

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

for Research in Environmental Sciences, University Sun, Dezheng 386 Is the Internet for Porn? An Insight Into the Online Adult Industry Computer Technologies and Information...

136

accretionary orogens insights: Topics by E-print Network  

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

for Research in Environmental Sciences, University Sun, Dezheng 447 Is the Internet for Porn? An Insight Into the Online Adult Industry Computer Technologies and Information...

137

aminotransferase ehpsat insights: Topics by E-print Network  

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

for Research in Environmental Sciences, University Sun, Dezheng 359 Is the Internet for Porn? An Insight Into the Online Adult Industry Computer Technologies and Information...

138

alsophila spinulosa insights: Topics by E-print Network  

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

for Research in Environmental Sciences, University Sun, Dezheng 355 Is the Internet for Porn? An Insight Into the Online Adult Industry Computer Technologies and Information...

139

acorn weevil insight: Topics by E-print Network  

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

for Research in Environmental Sciences, University Sun, Dezheng 452 Is the Internet for Porn? An Insight Into the Online Adult Industry Computer Technologies and Information...

140

Radiation tolerance of ceramics—Insights from atomistic...  

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

different radiation response as the damage accumulates. Citation: Devanathan R, WJ Weber, and JD Gale.2010."Radiation tolerance of ceramicsInsights from atomistic simulation...

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Worldwide Trends in Energy Use and Efficiency: Key Insights from...  

Open Energy Info (EERE)

Efficiency: Key Insights from International Energy Agency (IEA) Indicator Analysis in Support of the Group of Eight (G8) Plan of Action Jump to: navigation, search Tool Summary...

142

Ecofys-Nationally Appropriate Mitigation Actions: Insights from...  

Open Energy Info (EERE)

Actions: Insights from Example Development1 "Ecofys elaborated in several projects, concrete examples of NAMAs to understand the issues arising from this concept. This report...

143

Energy and Water Interactions: Insights from Mathematical Models  

E-Print Network [OSTI]

EnergyUse Water Use or Environmental Impact More More Less Less 0 0 Biofuels Production? Seawater desalting Water-Water TradeoffsEnergyUse Water Use or Environmental Impact More More Less Less 0 0 Biofuels Production? Seawater improvements Solar generation agriculture substitution? Pumping Shale oil Production? Drip irrigation-SW Trade

Keller, Arturo A.

144

Analysing the Carbon Footprint of Food Insights for Consumer Communication  

E-Print Network [OSTI]

Analysing the Carbon Footprint of Food Insights for Consumer Communication Elin Röös Faculty of Food. Insights for Consumer Communication. Abstract In Europe, food consumption is responsible, and communicating these to consumers to enable them to make informed choices. This thesis provides additional

145

Insights from the downhole dynamometer database  

SciTech Connect (OSTI)

The Downhole Dynamometer Database is a compilation of test data collected with a set of five downhole tools built by Albert Engineering under contract to Sandia National Laboratories. The downhole dynamometer tools are memory tools deployed in the sucker rod string with sensors to measure pressure, temperature, load, and acceleration. The acceleration data is processed to yield position, so that a load vs. position dynagraph can be generated using data collected downhole. With five tools in the hole at one time, all measured data and computed dynagraphs from five different positions in the rod string are available. The purpose of the Database is to provide industry with a complete and high quality measurement of downhole sucker rod pumping dynamics. To facilitate use of the database, Sandia has developed a Microsoft Windows-based interface that functions as a visualizer and browser to the more than 40 MBytes of data. The interface also includes a data export feature to allow users to extract data from the database for use in their own programs. Following a brief description of the downhole dynamometer tools, data collection program, and database content, this paper will illustrate a few of the interesting and unique insights gained from the downhole data.

Waggoner, J.R.

1997-03-01T23:59:59.000Z

146

Better Buildings Neighborhood Program Business Models Guide ...  

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

Guide Better Buildings Neighborhood Program Business Models Guide Uses lessons learned from Better Buildings grantees, existing data, and private sector insights to highlight...

147

Better Buildings Neighborhood Program Business Models Guide  

Broader source: Energy.gov [DOE]

Uses lessons learned from Better Buildings grantees, existing data, and private sector insights to highlight business models that can help develop a sustainable residential energy efficiency market.

148

Improved computer models support genetics research  

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

Simple computer models unravel genetic stress reactions in cells Integrated biological and computational methods provide insight into why genes are activated. February 8, 2013 When...

149

Computational Methodologies and Physical Insights into Electronic Energy Transfer in Photosynthetic Light-Harvesting Complexes  

E-Print Network [OSTI]

We examine computational techniques and methodologies currently in use to explore electronic excitation energy transfer in the context of light-harvesting complexes in photosynthetic antenna systems, and comment on some new insights into the underlying physics. Advantages and pitfalls of these methodologies are discussed, as are some physical insights into the photosynthetic dynamics. By combining results from molecular modelling of the complexes (structural description) with an effective non-equilibrium statistical description (time evolution), we identify some general features, regardless of the particular distribution in the protein scaffold, that are central to light-harvesting dynamics and, that could ultimately be related to the high efficiency of the overall process. Based on these general common features, some possible new directions in the field are discussed.

Leonardo A. Pachon; Paul Brumer

2012-05-21T23:59:59.000Z

150

E-Print Network 3.0 - acid anew insights Sample Search Results  

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

University of Wisconsin at Madison Collection: Biology and Medicine 13 insight review articles NATURE | VOL 409 | 11 JANUARY 2001 | www.nature.com 253 Summary: insight...

151

Novel Insights into the Downstream Pathways and Targets Controlled by Transcription Factors CREM in the Testis  

E-Print Network [OSTI]

proteins in spermatids: Downstream targets and implicationsNovel Insights into the Downstream Pathways and TargetsNovel Insights into the Downstream Pathways and Targets

2012-01-01T23:59:59.000Z

152

E-Print Network 3.0 - activation state insights Sample Search...  

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

- ment the state of the visualization at the time an insight occurs. Of course, an exploration process... Evaluating an InfoVis Technique Using Insight Reports Markus...

153

Suppressions and cascades : insights from gauge/gravity dualities  

E-Print Network [OSTI]

At present, there are no non-perturbative analytic methods available for investigating gauge theories at large couplings. Consequently, it is desirable to explore more avenues to gain qualitative and quantitative insights. ...

Ejaz, Qudsia Jabeen

2008-01-01T23:59:59.000Z

154

Enzyme Structure Provides Insights into Cancer and Aging  

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

Enzyme Structure Provides Insights into Cancer and Aging Print XPD helicase is an enzyme that unwinds the DNA double helix; it is one component of an essential repair mechanism...

155

2010 Honda Insight VIN 0141 Hybrid Electric Vehicle Battery Test...  

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

2 2010 Honda Insight VIN 0141 Hybrid Electric Vehicle Battery Test Results Tyler Gray Mathew Shirk January 2013 The Idaho National Laboratory is a U.S. Department of Energy...

156

2010 Honda Insight VIN 1748 Hybrid Electric Vehicle Battery Test...  

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

3 2010 Honda Insight VIN 1748 Hybrid Electric Vehicle Battery Test Results Tyler Gray Matthew Shirk January 2013 The Idaho National Laboratory is a U.S. Department of Energy...

157

Genome sequence of the Brown Norway rat yields insights into  

E-Print Network [OSTI]

Genome sequence of the Brown Norway rat yields insights into mammalian evolution Rat Genome Norway (BN) rat strain. The sequence represents a high-quality `draft' covering over 90% of the genome

Pachter, Lior

158

Maintenance Records for 2010 Honda Insight EX vin 0141  

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

Insight EX VIN JHMZE2H78AS010141 Date Mileage Description Cost 12102009 5,947 Changed oil and filter and inspected brake system 30.44 252010 11,011 Changed oil and filter and...

159

active site insights: Topics by E-print Network  

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

disassembly of C-site. Our current results Lee, Keun Woo 2 Theoretic Insight into CO2 Reduction at Active Sites of Molybdenum and Tungsten Enzymes: a pi Interaction between CO2...

160

Technical Insights for Saltstone PA Maintenance  

SciTech Connect (OSTI)

The Cementitious Barriers Partnership (CBP) is a collaborative program sponsored by the US DOE Office of Waste Processing. The objective of the CBP is to develop a set of computational tools to improve understanding and prediction of the long-term structural, hydraulic, and chemical performance of cementitious barriers and waste forms used in nuclear applications. CBP tools are expected to better characterize and reduce the uncertainties of current methodologies for assessing cementitious barrier performance and increase the consistency and transparency of the assessment process, as the five-year program progresses. In September 2009, entering its second year of funded effort, the CBP sought opportunities to provide near-term tangible support to DOE Performance Assessments (PAs). The Savannah River Saltstone Disposal Facility (SDF) was selected for the initial PA support effort because (1) cementitious waste forms and barriers play a prominent role in the performance of the facility, (2) certain important long-term behaviors of cementitious materials composing the facility are uncertain, (3) review of the SDF PA by external stakeholders is ongoing, and (4) the DOE contractor responsible for the SDF PA is open to receiving technical assistance from the CBP. A review of the current (SRR Closure & Waste Disposal Authority 2009) and prior Saltstone PAs (e.g., Cook et al. 2005) suggested five potential opportunities for improving predictions. The candidate topics considered were (1) concrete degradation from external sulfate attack, (2) impact of atmospheric exposure to concrete and grout before closure, such as accelerated slag and Tc-99 oxidation, (3) mechanistic prediction of geochemical conditions, (4) concrete degradation from rebar corrosion due to carbonation, and (5) early age cracking from drying and/or thermal shrinkage. The candidate topics were down-selected considering the feasibility of addressing each issue within approximately six months, and compatibility with existing CBP expertise and already-planned activities. Based on these criteria, the five original topics were down-selected to two: external sulfate attack and mechanistic geochemical prediction. For each of the selected topics, the CBP communicated with the PA analysts and subject matter experts at Savannah River to acquire input data specific to the Saltstone facility and related laboratory experiments. Simulations and analyses were performed for both topics using STADIUM (SIMCO 2008), LeachXS/ORCHESTRA (ECN 2007, Meeussen 2003), and other software tools. These supplemental CBP analyses produced valuable technical insights that can be used to strengthen the Saltstone PA using the ongoing PA maintenance process. This report in part summarizes key information gleaned from more comprehensive documents prepared by Sarkar et al. (2010), Samson (2010), and Sarkar (2010).

Flach, G.; Sarkar, S.; Mahadevan, S.; Kosson, D.

2011-07-20T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Computer Modeling Illuminates Degradation Pathways of  

E-Print Network [OSTI]

Computer Modeling Illuminates Degradation Pathways of Cations in Alkaline Membrane Fuel Cells Cation degradation insights obtained by computational modeling could result in better performance are effective in increasing cation stability. With the help of computational modeling, more cations are being

162

Using Numerical Simulations to Gain Insight into the Structure of Superbubbles  

E-Print Network [OSTI]

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

Philip T. Komljenovic; Shantanu Basu; Doug Johnstone

1999-01-21T23:59:59.000Z

163

Modeling diffusion of electrical appliances in the residential sector  

SciTech Connect (OSTI)

This paper presents a methodology for modeling residential appliance uptake as a function of root macroeconomic drivers. The analysis concentrates on four major energy end uses in the residential sector: refrigerators, washing machines, televisions and air conditioners. The model employs linear regression analysis to parameterize appliance ownership in terms of household income, urbanization and electrification rates according to a standard binary choice (logistic) function. The underlying household appliance ownership data are gathered from a variety of sources including energy consumption and more general standard of living surveys. These data span a wide range of countries, including many developing countries for which appliance ownership is currently low, but likely to grow significantly over the next decades as a result of economic development. The result is a 'global' parameterization of appliance ownership rates as a function of widely available macroeconomic variables for the four appliances studied, which provides a reliable basis for interpolation where data are not available, and forecasting of ownership rates on a global scale. The main value of this method is to form the foundation of bottom-up energy demand forecasts, project energy-related greenhouse gas emissions, and allow for the construction of detailed emissions mitigation scenarios.

McNeil, Michael A.; Letschert, Virginie E.

2009-11-22T23:59:59.000Z

164

The National Energy Modeling System: An overview 1998  

SciTech Connect (OSTI)

The National Energy Modeling System (NEMS) is a computer-based, energy-economy modeling system of US energy markets for the midterm period through 2020. NEMS projects the production, imports, conversion, consumption, and prices of energy, subject to assumptions on macroeconomic and financial factors world energy markets, resource availability and costs, behavior and technological choice criteria, cost and performance characteristics of energy technologies, and demographics. This report presents an overview of the structure and methodology of NEMS and each of its components. The first chapter provides a description of the design and objectives of the system, followed by a chapter on the overall modeling structure and solution algorithm. The remainder of the report summarizes the methodology and scope of the component modules of NEMS. The model descriptions are intended for readers familiar with terminology from economics, operations research, and energy modeling. 21 figs.

NONE

1998-02-01T23:59:59.000Z

165

A conceptual model to estimate cost effectiveness of the indoor environment improvements  

SciTech Connect (OSTI)

Macroeconomic analyses indicate a high cost to society of a deteriorated indoor climate. The few example calculations performed to date indicate that measures taken to improve IEQ are highly cost-effective when health and productivity benefits are considered. We believe that cost-benefit analyses of building designs and operations should routinely incorporate health and productivity impacts. As an initial step, we developed a conceptual model that shows the links between improvements in IEQ and the financial gains from reductions in medical care and sick leave, improved work performance, lower employee turn over, and reduced maintenance due to fewer complaints.

Seppanen, Olli; Fisk, William J.

2003-06-01T23:59:59.000Z

166

Better Buildings Neighborhood Program Business Models Guide: Executive Summary  

Broader source: Energy.gov [DOE]

Uses lessons learned from Better Buildings grantees, existing data, and private sector insights to highlight business models that can help develop a sustainable residential energy efficiency market.

167

Better Buildings Neighborhood Program Business Models Guide: Introduction  

Broader source: Energy.gov [DOE]

Uses lessons learned from Better Buildings grantees, existing data, and private sector insights to highlight business models that can help develop a sustainable residential energy efficiency market.

168

Physiological Insights Towards Improving Fish Culture L. CURRY WOODS III*  

E-Print Network [OSTI]

Physiological Insights Towards Improving Fish Culture L. CURRY WOODS III* Department of Animal, and American Fisheries Society (AFS) Fish Culture Section, was held February 26 through March 2, 2007, in San Antonio, Texas. At this meeting, the AFS Fish Culture and Fish Physiol- ogy Sections co

Hamza, Iqbal

169

Nuclear magnetic resonance offers new insights into Pu 239  

E-Print Network [OSTI]

- 1 - Nuclear magnetic resonance offers new insights into Pu 239 May 29, 2012 Nuclear magnetic signal of plutonium 239's unique nuclear magnetic resonance signature has been detected by scientists on the subject, "Observation of 239 Pu Nuclear Magnetic Resonance," was published in the May 18 issue of Science

170

Responsive Systems Comparison Method: Dynamic Insights into Designing a Satellite  

E-Print Network [OSTI]

System (SRS) Critical issue in national security space ­ Unique all-weather surveillance capability) National Security Strategy/Policy National Security Strategy/Policy Resources (fungible assetsResponsive Systems Comparison Method: Dynamic Insights into Designing a Satellite Radar System Adam

de Weck, Olivier L.

171

Theoretical insights into multibandgap hybrid perovskites for photovoltaic applications  

E-Print Network [OSTI]

-processable low-cost materials for high efficient hybrid photovoltaic cells [3-6, 9-14]. Tremendous progress hasTheoretical insights into multibandgap hybrid perovskites for photovoltaic applications J. Even to open "a new era and a new avenue of research and development for low-cost solar cells ... likely

172

Dynamical insight into dark-matter haloes  

E-Print Network [OSTI]

We investigate, using the spherical Jeans equation, self-gravitating dynamical equilibria satisfying a relation rho/sigma_r^3 propto r^-alpha, which holds for simulated dark-matter haloes over their whole resolved radial range. Considering first the case of velocity isotropy, we find that this problem has only one solution with realistic density profile, which occurs only for a critical value of alpha_crit = 35/18 ~= 1.94, which is consistent with the empirical value of 1.9+/-0.05. We extend our analysis in two ways: first we introduce a parameter epsilon to allow for a more general relation rho/\\sigma_r^epsilon propto r^-alpha; second we consider velocity anisotropy. If we assume beta(r) := 1- sigma_theta^2 / sigma_r^2 to be linearly related to the logarithmic density slope gamma(r) := -dln(rho)/dln(r), which is in agreement with simulations, the problem remains analytically tractable and is equivalent to the simpler isotropic case: there exists only one physical solution, which occurs at a critical alpha value. Remarkably, this value of alpha and the density and velocity-dispersion profiles depend only on epsilon and the value beta_0 := beta(r=0), but not on the slope of the linear beta-gamma relation. For epsilon=3, alpha_crit = 35/18 - 2beta_0/9 and the resulting density profile is fully analytic (as are the velocity dispersion and circular speed) with an inner cusp rho propto r^{-(7+10beta_0)/9} and a very smooth transition to a steeper outer power-law asymptote. These models are in excellent agreement with the density, velocity-dispersion and anisotropy profiles of simulated dark-matter haloes over their full resolved radial range. If epsilon=3 is a universal constant, some scatter in beta_0 ~= 0 may account for some diversity in the density profiles. (ABRIDGED)

Walter Dehnen; Dean McLaughlin

2005-06-22T23:59:59.000Z

173

Understanding Clusters in Multidimensional Spaces: Making Meaning by Combining Insights from Coordinated Views of  

E-Print Network [OSTI]

- 1 - Understanding Clusters in Multidimensional Spaces: Making Meaning by Combining Insights from: Cluster Analysis, Interactive Design, Information Visualization, Coordination, Domain Knowledge, Graphical. #12;- 2 - Understanding Clusters in Multidimensional Spaces: Making Meaning by Combining Insights from

Golbeck, Jennifer

174

Insights from Smart Meters: The Potential for Peak-Hour Savings from Behavior-Based Programs  

E-Print Network [OSTI]

2014.  Insights from Smart  Meters: The Potential for Peak available data captured by smart meters and other sources,series Insights from Smart Meters. DRAFT – DO NOT CIRCULATE

Todd, Annika

2014-01-01T23:59:59.000Z

175

Modeling  

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

an implementation of a single-fluid inter- face model in the ALE-AMR code to simulate surface tension effects. The model does not require explicit information on the physical...

176

Qualification for PowerInsight accuracy of power measurements.  

SciTech Connect (OSTI)

Accuracy of component based power measuring devices forms a necessary basis for research in the area of power-e cient and power-aware computing. The accuracy of these devices must be quanti ed within a reasonable tolerance. This study focuses on PowerInsight, an out- of-band embedded measuring device which takes readings of power rails on compute nodes within a HPC system in realtime. We quantify how well the device performs in comparison to a digital oscilloscope as well as PowerMon2. We show that the accuracy is within a 6% deviation on measurements under reasonable load.

DeBonis, David; Laros, James H.,; Pedretti, Kevin Thomas Tauke

2013-11-01T23:59:59.000Z

177

Insight Gained from Simplified Dynamic Analysis | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel2007 | Department of38-2007Energy inEnergy||Insight

178

Structural Insights into FeMo Cofactor Biosynthesis  

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 systemsBiSiteNeutronStrategic PlanStructuralMethodologyInsights into FeMo

179

Jefferson Lab holds educational, insightful science lectures in June |  

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 ProposedUsingFunInfraredJefferson LabJefferson Lab educational, insightful science

180

Essays on Macroeconomics and Information Economics  

E-Print Network [OSTI]

on-Hudson, NY: Levy Economics Institute, Bard College, 2010.Journal of Labor Economics, 7(3):281–302, 1989. [4] S.N.Quarterly Jour- nal of Economics, 109(3):659, 1994. [6] Y.

Zambrano Riveros, Jorge Andres

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Essays on frictions in financial macroeconomics  

E-Print Network [OSTI]

3.2.4 Multivariate GARCH . . . . . . . . . . . . . . . . .productivity: DCC-GARCH . . . . . . . 87 US conditionalquarterly growth volatility: GARCH(1,1) . . . . . . 85 Ratio

Kay, Benjamin S.

2012-01-01T23:59:59.000Z

182

Three Essays in Macroeconomics and Financial Economics  

E-Print Network [OSTI]

the vector xt to also include these lagged values. Consequently, x0t ? [y˜ ? r˜? p˜i? g˜? o˜? p˜i o˜] ? . On the other hand, ?t = [a˜ e˜ z˜ ?r] ? . The corresponding matrices A, B, and C are then given by A = ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 ?1 0 0 0 1...(5x2) 0 (2x5) ?22(2x2) ? ? ? . Next, let x1t = Z ? x0t such that, in particular, x1t = ? ? ? x11t x12t ? ? ? , where x11t(5x1) = Z ? 11 ? ? ? ? ? ? ? ? ? ? ? ? y˜?1 r˜?1 p˜i?1 g˜?1 o˜?1 ? ? ? ? ? ? ? ? ? ? ? ? +Z ? 21 ? ? ? p˜i o˜ ? ? ? (1.57) and x12t...

Kacaribu, Febrio

2014-05-31T23:59:59.000Z

183

Essays on International Finance and Macroeconomics  

E-Print Network [OSTI]

1.10.2 DMW test . . . . . . . . . . . . . . . . . . .Tests . . . . . . . . . . . . . . . . . . . . . . . . . DMWOS LRV estimators . . . . . . . . . . . . . DMW test: OS LRV

Kim, Young Ju

2014-01-01T23:59:59.000Z

184

Essays on macroeconomics and international trade  

E-Print Network [OSTI]

This thesis focuses on the study of different aspects of income inequality across and within countries. In the first chapter, I study how the optimal provision of human capital is distorted in the presence of borrowing ...

Mestieri, Martí (Mestieri Ferre)

2011-01-01T23:59:59.000Z

185

Essays on frictions in financial macroeconomics  

E-Print Network [OSTI]

94 (1), Lucas, Robert E. , “Econometric Policy Evaluation: Aorder flow based econometric measurements of spread

Kay, Benjamin S.

2012-01-01T23:59:59.000Z

186

Essays in International Finance and Macroeconomics  

E-Print Network [OSTI]

In that case, the Home SDF would also feature an additionaltwo stochastic discount factors (SDF), one for each country,1 R t+1 where ? t+1 is the US SDF, and R t+1 is any US asset

Maggiori, Matteo

2012-01-01T23:59:59.000Z

187

Essays on Macroeconomics and International Finance  

E-Print Network [OSTI]

Production function, inventory, and goods demand . . .channel and inventory behavior . . . . . . . . . . . . . .inventories . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wang, Gewei

2012-01-01T23:59:59.000Z

188

Emerging Economies, Trade Policy, and Macroeconomic Shocks  

E-Print Network [OSTI]

are generally found to be the source of more than two thirds of the policy-imposing economies’ non-oil imports during the sample period, ranging from 65 percent for Thailand to 91 percent for Mexico. The Philippines is a notable outlier for which the available... import restrictions increased more than 50 percent between 2007 and 2010 alone. 3 Finally, Bown (2011) finds that many of the G20 emerging economies also in our sample – including Argentina, Brazil, China, India, Indonesia, Mexico, South Africa...

Bown, Chad P.; Crowley, Meredith A.

2014-05-09T23:59:59.000Z

189

Essays in macroeconomics : information and financial markets  

E-Print Network [OSTI]

This thesis studies how information imperfections affect financial markets and the macroeconomy. Chapter 1 considers an economy where investors delegate their investment decisions to financial institutions that choose ...

Iovino, Luigi

2012-01-01T23:59:59.000Z

190

Modeling  

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

a single-fluid diffuse interface model in the ALE-AMR hydrodynamics code to simulate surface tension effects. We show simula- tions and compare them to other surface tension...

191

Modeling  

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

sion effects. We show the result of a test case, and compare it to the result without surface tension. The model describes droplet formation nicely. Application The ARRA-funded...

192

Voices of Experience | Insights into Advanced Distribution Management Systems  

Broader source: Energy.gov [DOE]

The American Recovery and Reinvestment Act (ARRA) of 2009 spurred investments in smart grid technology and programs at utilities across the country. In 2011, the Office of Electricity Delivery and Energy Reliability (OE), in partnership with electric utilities that received ARRA funds, convened a series of Regional Smart Grid Peer-to-Peer Workshops. These were designed to bring together utilities to engage in dialogues about the most compelling smart grid topics in each region. In February 2014, OE formed the Advanced Distribution Management Systems (ADMS) Working Group by assembling a leadership team of representatives from the utility industry with the mission to collect the experiences, insights, and lessons learned from implementing these systems. This Voices of Experience | Insights into Advanced Distribution Management Systems report is the result of a one-day meeting held at CenterPoint Energy in Houston, Texas, in May 2014 that was followed by a series of conference calls about specific aspects of ADMS, interviews with individuals leading ADMS projects at their utilities, and a final small group meeting at San Diego Gas & Electric in California in October 2014.

193

The National Energy Modeling System: An overview  

SciTech Connect (OSTI)

The National Energy Modeling System (NEMS) is a computer-based, energy-economy modeling system of US energy markets for the midterm period of 1990 to 2010. NEMS projects the production, imports, conversion, consumption, and prices of energy, subject to assumptions on macroeconomic and financial factors, world energy markets, resource availability and costs, behavioral and technological choice criteria, cost and performance characteristics of energy technologies, and demographics. This report presents an overview of the structure and methodology of NEMS and each of its components. The first chapter provides a description of the design and objectives of the system. The second chapter describes the modeling structure. The remainder of the report summarizes the methodology and scope of the component modules of NEMS. The model descriptions are intended for readers familiar with terminology from economics, operations research, and energy modeling. Additional background on the development of the system is provided in Appendix A of this report, which describes the EIA modeling systems that preceded NEMS. More detailed model documentation reports for all the NEMS modules are also available from EIA.

Not Available

1994-05-01T23:59:59.000Z

194

Modelling  

E-Print Network [OSTI]

Modeling of technical machines became a standard technique since computer became powerful enough to handle the amount of data relevant to the specific system. Simulation of an existing physical device requires the knowledge of all relevant quantities. Electric fields given by the surrounding boundary as well as magnetic fields caused by coils or permanent magnets have to be known. Internal sources for both fields are sometimes taken into account, such as space charge forces or the internal magnetic field of a moving bunch of charged particles. Used solver routines are briefly described and some bench-marking is shown to estimate necessary computing times for different problems. Different types of charged particle sources will be shown together with a suitable model to describe the physical model. Electron guns are covered as well as different ion sources (volume ion sources, laser ion sources, Penning ion sources, electron resonance ion sources, and H$^-$-sources) together with some remarks on beam transport.

Spädtke, P

2013-01-01T23:59:59.000Z

195

Update Algorithms for the Sketch Data Model Michael Johnson  

E-Print Network [OSTI]

Update Algorithms for the Sketch Data Model Michael Johnson Macquarie University, Australia Email --- the Sketch Data Model (SDM). Meanwhile, Dampney and Johnson have been applying the insights gained from

Johnson, Michael

196

Update Algorithms for the Sketch Data Model Michael Johnson  

E-Print Network [OSTI]

Update Algorithms for the Sketch Data Model Michael Johnson Macquarie University, Australia Email -- the Sketch Data Model (SDM). Meanwhile, Dampney and Johnson have been applying the insights gained from

Rosebrugh, Robert

197

National Energy Modeling System (NEMS)  

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

The National Energy Modeling System (NEMS) is a computer-based, energy-economy modeling system of U.S. through 2030. NEMS projects the production, imports, conversion, consumption, and prices of energy, subject to assumptions on macroeconomic and financial factors, world energy markets, resource availability and costs, behavioral and technological choice criteria, cost and performance characteristics of energy technologies, and demographics. NEMS was designed and implemented by the Energy Information Administration (EIA) of the U.S. Department of Energy (DOE). NEMS can be used to analyze the effects of existing and proposed government laws and regulations related to energy production and use; the potential impact of new and advanced energy production, conversion, and consumption technologies; the impact and cost of greenhouse gas control; the impact of increased use of renewable energy sources; and the potential savings from increased efficiency of energy use; and the impact of regulations on the use of alternative or reformulated fuels. NEMS has also been used for a number of special analyses at the request of the Administration, U.S. Congress, other offices of DOE and other government agencies, who specify the scenarios and assumptions for the analysis. Modules allow analyses to be conducted in energy topic areas such as residential demand, industrial demand, electricity market, oil and gas supply, renewable fuels, etc.

198

E-Print Network 3.0 - acidobacteria provide insight Sample Search...  

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

Phylum Acidobacteria Provide Insight into the Lifestyles of These Microorganisms... . The identification and analysis of these genes provided sev- eral clues that these three...

199

E-Print Network 3.0 - aldehydes mechanistic insights Sample Search...  

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

for: aldehydes mechanistic insights Page: << < 1 2 3 4 5 > >> 1 Aldehyde-Amine Chemistry Enables Modulated Biosealants with Tissue-Specific Adhesion Summary: Aldehyde-Amine...

200

Nonclassicality Phase-Space Functions: More Insight with Fewer Detectors  

E-Print Network [OSTI]

Systems of on-off detectors are well established for measuring radiation fields in the regime of small photon numbers. We propose to combine these detector systems with unbalanced homodyning with a weak local oscillator. This approach yields phase-space functions, which represent the click counterpart of the s parametrized quasiprobabilities of standard photoelectric detection theory. This introduced class of distributions can be directly sampled from the measured click counting statistics. Therefore, our technique visualizes nonclassical effects without further data processing. Surprisingly, a small number of on-off diodes can yield more insight than perfect photon number resolution. Quantum signatures in the particle and wave domain of the quantized radiation field, as shown by photon number and squeezed states, respectively, will be uncovered in terms of negativities of the sampled phase-space functions. Application in the vast fields of quantum optics and quantum technology will benefit from our efficient nonclassicality characterization approach.

A. Luis; J. Sperling; W. Vogel

2015-03-17T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

NREL Highlights SCIENCE Research provides insight for exploring use of Earth-  

E-Print Network [OSTI]

NREL Highlights SCIENCE Research provides insight for exploring use of Earth- abundant quaternary, it is critical to find new material that is Earth abundant and easily manufactured. Previous experimental studies This research provides insight for exploring use of Earth-abundant quaternary semiconductors for large

202

Making Sustainable Energy Choices: Insights on the Energy/Water/Land Nexus  

SciTech Connect (OSTI)

This periodic publication summarizes insights from the body of NREL analysis work. In this issue of Analysis Insights, we examine the implications of our energy choices on water, land use, climate, developmental goals, and other factors. Collectively, NREL's work helps policymakers and investors understand and evaluate energy choices within the complex web of connections, or nexus, between energy, water, and land.

Not Available

2014-10-01T23:59:59.000Z

203

Sudhakar Yedla* and Sarika Kansal Economic insight into municipal solid waste  

E-Print Network [OSTI]

Sudhakar Yedla* and Sarika Kansal Economic insight into municipal solid waste management in Mumbai: a critical analysis 511 " Economic insight into solid waste management Conventional MSW management fails metropolitan city in India, presents the most critical solid waste management system in India. The present

Columbia University

204

Global pattern of earthquakes and seismic energy distributions: Insights for the mechanisms of plate tectonics  

E-Print Network [OSTI]

Ã?Ã? Ã? Ã?Ã?Ã? Ã? Ã?Ã? Global pattern of earthquakes and seismic energy distributions: Insights.F., Global pattern of earthquakes and seismic energy distri- butions: Insights for the mechanisms of plate% of the total energy in the first ~50km; only 6% of events dissipates about 20% of the total amount of energy

Stuttgart, Universität

205

Some insight on why Bam (Iran) was destroyed by an earthquake of relatively moderate size  

E-Print Network [OSTI]

Some insight on why Bam (Iran) was destroyed by an earthquake of relatively moderate size Michel March 2006; accepted 29 March 2006; published 13 May 2006. [1] The Bam (Iran) earthquake of 2003. Hatzfeld, J. A. Jackson, and E. Haghshenas (2006), Some insight on why Bam (Iran) was destroyed

Hatzfeld, Denis

206

Delivering Insight The History of the Accelerated Strategic Computing Initiative  

SciTech Connect (OSTI)

The history of the Accelerated Strategic Computing Initiative (ASCI) tells of the development of computational simulation into a third fundamental piece of the scientific method, on a par with theory and experiment. ASCI did not invent the idea, nor was it alone in bringing it to fruition. But ASCI provided the wherewithal - hardware, software, environment, funding, and, most of all, the urgency - that made it happen. On October 1, 2005, the Initiative completed its tenth year of funding. The advances made by ASCI over its first decade are truly incredible. Lawrence Livermore, Los Alamos, and Sandia National Laboratories, along with leadership provided by the Department of Energy's Defense Programs Headquarters, fundamentally changed computational simulation and how it is used to enable scientific insight. To do this, astounding advances were made in simulation applications, computing platforms, and user environments. ASCI dramatically changed existing - and forged new - relationships, both among the Laboratories and with outside partners. By its tenth anniversary, despite daunting challenges, ASCI had accomplished all of the major goals set at its beginning. The history of ASCI is about the vision, leadership, endurance, and partnerships that made these advances possible.

Larzelere II, A R

2007-01-03T23:59:59.000Z

207

A model for Long-term Industrial Energy Forecasting (LIEF)  

SciTech Connect (OSTI)

The purpose of this report is to establish the content and structural validity of the Long-term Industrial Energy Forecasting (LIEF) model, and to provide estimates for the model`s parameters. The model is intended to provide decision makers with a relatively simple, yet credible tool to forecast the impacts of policies which affect long-term energy demand in the manufacturing sector. Particular strengths of this model are its relative simplicity which facilitates both ease of use and understanding of results, and the inclusion of relevant causal relationships which provide useful policy handles. The modeling approach of LIEF is intermediate between top-down econometric modeling and bottom-up technology models. It relies on the following simple concept, that trends in aggregate energy demand are dependent upon the factors: (1) trends in total production; (2) sectoral or structural shift, that is, changes in the mix of industrial output from energy-intensive to energy non-intensive sectors; and (3) changes in real energy intensity due to technical change and energy-price effects as measured by the amount of energy used per unit of manufacturing output (KBtu per constant $ of output). The manufacturing sector is first disaggregated according to their historic output growth rates, energy intensities and recycling opportunities. Exogenous, macroeconomic forecasts of individual subsector growth rates and energy prices can then be combined with endogenous forecasts of real energy intensity trends to yield forecasts of overall energy demand. 75 refs.

Ross, M. [Lawrence Berkeley Lab., CA (United States)]|[Michigan Univ., Ann Arbor, MI (United States). Dept. of Physics]|[Argonne National Lab., IL (United States). Environmental Assessment and Information Sciences Div.; Hwang, R. [Lawrence Berkeley Lab., CA (United States)

1992-02-01T23:59:59.000Z

208

Energy metabolism in Desulfovibrio vulgaris Hildenborough: insights from transcriptome analysis  

SciTech Connect (OSTI)

Sulphate-reducing bacteria are important players in the global sulphur and carbon cycles, with considerable economical and ecological impact. However, the process of sulphate respiration is still incompletely understood. Several mechanisms of energy conservation have been proposed, but it is unclear how the different strategies contribute to the overall process. In order to obtain a deeper insight into the energy metabolism of sulphate-reducers whole-genome microarrays were used to compare the transcriptional response of Desulfovibrio vulgaris Hildenborough grown with hydrogen/sulphate, pyruvate/sulphate, pyruvate with limiting sulphate, and lactate/thiosulphate, relative to growth in lactate/sulphate. Growth with hydrogen/sulphate showed the largest number of differentially expressed genes and the largest changes in transcript levels. In this condition the most up-regulated energy metabolism genes were those coding for the periplasmic [NiFeSe]hydrogenase, followed by the Ech hydrogenase. The results also provide evidence for the involvement of formate cycling and the recently proposed ethanol pathway during growth in hydrogen. The pathway involving CO cycling is relevant during growth on lactate and pyruvate, but not during growth in hydrogen as the most down-regulated genes were those coding for the CO-induced hydrogenase. Growth on lactate/thiosulphate reveals a down-regulation of several energymetabolism genes similar to what was observed in the presence of nitrite. This study identifies the role of several proteins involved in the energy metabolism of D. vulgaris and highlights several novel genes related to this process, revealing a more complex bioenergetic metabolism than previously considered.

Pereira, Patricia M.; He, Qiang; Valente, Filipa M.A.; Xavier, Antonio V.; Zhou, Jizhong; Pereira, Ines A.C.; Louro, Ricardo O.

2007-11-01T23:59:59.000Z

209

Comment on 'New Insights in the Electrocatalytic Proton Reduction...  

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

reduction using a model nickel complex for nickel-based electrocatalysts with cyclic phosphorous ligands incorporating pendant amines. These catalysts are attracting considerable...

210

Evolutionary history and metabolic insights of ancient mammalian uricases  

E-Print Network [OSTI]

causing gout. We have applied evolutionary models to understand the history of primate uricases of treating gout and preventing tumor lysis syndrome in human patients. hyperuricemia | pseudogene | evolution

Gaucher, Eric

211

A model for Long-term Industrial Energy Forecasting (LIEF)  

SciTech Connect (OSTI)

The purpose of this report is to establish the content and structural validity of the Long-term Industrial Energy Forecasting (LIEF) model, and to provide estimates for the model's parameters. The model is intended to provide decision makers with a relatively simple, yet credible tool to forecast the impacts of policies which affect long-term energy demand in the manufacturing sector. Particular strengths of this model are its relative simplicity which facilitates both ease of use and understanding of results, and the inclusion of relevant causal relationships which provide useful policy handles. The modeling approach of LIEF is intermediate between top-down econometric modeling and bottom-up technology models. It relies on the following simple concept, that trends in aggregate energy demand are dependent upon the factors: (1) trends in total production; (2) sectoral or structural shift, that is, changes in the mix of industrial output from energy-intensive to energy non-intensive sectors; and (3) changes in real energy intensity due to technical change and energy-price effects as measured by the amount of energy used per unit of manufacturing output (KBtu per constant $ of output). The manufacturing sector is first disaggregated according to their historic output growth rates, energy intensities and recycling opportunities. Exogenous, macroeconomic forecasts of individual subsector growth rates and energy prices can then be combined with endogenous forecasts of real energy intensity trends to yield forecasts of overall energy demand. 75 refs.

Ross, M. (Lawrence Berkeley Lab., CA (United States) Michigan Univ., Ann Arbor, MI (United States). Dept. of Physics Argonne National Lab., IL (United States). Environmental Assessment and Information Sciences Div.); Hwang, R. (Lawrence Berkeley Lab., CA (United States))

1992-02-01T23:59:59.000Z

212

Technology and society : some insights on the development of metallurgy in the Southern Levant in the light of new dates of slag deposits  

E-Print Network [OSTI]

CALIFORNIA, SAN DIEGO Technology and Society: Some InsightsOF THE THESIS Technology and Society: Some insights on theinteraction between technology and society in the past. For

Ben-Yosef, Erez

2008-01-01T23:59:59.000Z

213

Insights On The Thermal History Of The Valles Caldera, New Mexico...  

Open Energy Info (EERE)

Insights On The Thermal History Of The Valles Caldera, New Mexico- Evidence From Zircon Fission-Track Analysis Jump to: navigation, search OpenEI Reference LibraryAdd to library...

214

Structure and evolution of the Australian continent : insights from seismic and mechanical heterogeneity and anisotropy  

E-Print Network [OSTI]

In this thesis, I explore the geophysical structure and evolution of the Australian continental lithosphere. I combine insights from isotropic and anisotropic seismic surface-wave tomography with an analysis of the anisotropy ...

Simons, Frederik Jozef Maurits, 1974-

2002-01-01T23:59:59.000Z

215

Towards a better insight of RDF triples Ontology-guided Storage system abilities  

E-Print Network [OSTI]

Towards a better insight of RDF triples Ontology-guided Storage system abilities Olivier Cur´e1 to such queries, one has to give a special attention to the storage system associated to the triples. In fact, RDF

Paris-Sud XI, Université de

216

The nature of fire-cracked rock: new insights from ethnoarchaeological and laboratory experiments  

E-Print Network [OSTI]

thermal weathering better than metamorphic or sedimentary rock types. Ethnoarchaeological results are applied to six archaeological FCR features, and provide new insights on the use-history of five of the features. Microscopic observations...

Jackson, Michael A

1998-01-01T23:59:59.000Z

217

Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar  

Broader source: Energy.gov [DOE]

The SunShot Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) program is taking a physics- and chemistry-based approach to identifying failure modes...

218

Multi-parameter monitoring of a solution mining cavern collapse: first insight of precursors  

E-Print Network [OSTI]

Multi-parameter monitoring of a solution mining cavern collapse: first insight of precursors leveling; early warning system; environmental safety; salt cavern; near-surface geophysics. Mots clés

Paris-Sud XI, Université de

219

FEBS J . Author manuscript Recent insights into cerebral cavernous malformations: a complex jigsaw  

E-Print Network [OSTI]

FEBS J . Author manuscript Page /1 10 Recent insights into cerebral cavernous malformations: Eva Faurobert Abstract Cerebral cavernous malformations are common-Matrix Junctions ; physiology ; Hemangioma, Cavernous, Central Nervous System ; genetics ; metabolism

Boyer, Edmond

220

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

E-Print Network [OSTI]

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

Marticello, Daniel Nicholas, Jr

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Insights into the historical construction of species-rich Mesoamerican seasonally dry tropical forests: the diversification  

E-Print Network [OSTI]

Insights into the historical construction of species-rich Mesoamerican seasonally dry tropical, Mesoamerica, niche conservatism, seasonally dry tropical forests. Summary · Mesoamerican arid biomes epitomize the vast species richness of Meso- american seasonally dry tropical forests (SDTFs), and to evaluate

Olson, Mark

222

E-Print Network 3.0 - acacia tortilis insights Sample Search...  

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

Search Sample search results for: acacia tortilis insights Page: << < 1 2 3 4 5 > >> 1 Ecology 2007 95, 184196 Summary: multi-annual fruiting (masting), possibly as a predator...

223

E-Print Network 3.0 - aldehydes added insight Sample Search Results  

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

for: aldehydes added insight Page: << < 1 2 3 4 5 > >> 1 THE JOURNAL OF BIOL.OGICAL CHEMISTRY 0 1990 by The American Society for Biochemistry and Molecular Biology, Inc. Summary:...

224

Non-smooth Dynamics Using Differential-algebraic Equations Perspective: Modeling and Numerical Solutions  

E-Print Network [OSTI]

mathematical tools. On the other hand, the approach based on differential-algebraic equations gives more insight into the constitutive assumptions of a chosen model and easier to obtain numerical solutions. Bingham-type models in which the force cannot...

Gotika, Priyanka

2012-02-14T23:59:59.000Z

225

Language acquisition and implication for language change: A computational model  

E-Print Network [OSTI]

Computer modeling techniques, when applied to language acquisition problems, give an often unrealized insight into the diachronic change that occurs in language over successive generations. This paper shows that using ...

Clark, Robert A J

1997-01-01T23:59:59.000Z

226

A generative model for activations in functional MRI  

E-Print Network [OSTI]

Detection of brain activity and selectivity using functional magnetic resonance imaging (fMRI) provides unique insight into the underlying functional properties of the brain. We propose a generative model that jointly ...

Sridharan, Ramesh

2011-01-01T23:59:59.000Z

227

Simultaneous activation of multiple memory systems during learning : insights from electrophysiology and modeling  

E-Print Network [OSTI]

Parallel cortico-basal ganglia loops are thought to give rise to a diverse set of limbic, associative and motor functions, but little is known about how these loops operate and how their neural activities evolve during ...

Thorn, Catherine A. (Catherine Ann), 1980-

2010-01-01T23:59:59.000Z

228

Water Vapor Variability Across Spatial Scales: Insights for Theory, Parameterization, and Model Assessment  

E-Print Network [OSTI]

The best fitting power laws are shown as solid lines. Dottedbest fitting power laws are shown as solid lines. VerticalThe best fitting power laws are shown as solid lines. Dotted

Pressel, Kyle Gregory

2012-01-01T23:59:59.000Z

229

Up to what temperature is petroleum stable? New insights from a 5200 free radical reactions model  

E-Print Network [OSTI]

´ (1975). That approach was initially intended to describe and predict oil generation from source rocks and accelerators, and to a composition representing a light mature oil. From the results obtained, we conclude that mature oils will be stable up to 240­260 C, depending on their composition, and that the thermal

Domine, Florent

230

Baffin Island snow extent sensitivity: Insights from a regional climate model  

E-Print Network [OSTI]

in both timing and degree. In the Arctic, the LIA caused expansion of ice caps and glaciers Baffin Island suggests that a sudden expansion of ice caps began soon after a succession of several large., 2009; Zhong et al., 2010; Miller et al., 2012]. The ice sheets did not start to melt until roughly

Robock, Alan

231

Forest fire management in Portugal : developing system insights through models of social and physical dynamics  

E-Print Network [OSTI]

Managing forest fires is a serious national problem in Portugal. Burned area has increased steadily over the past several decades, with particularly devastating years in 2003 and 2005. Ignitions also spike dramatically in ...

Collins, Ross D. (Ross Daniel)

2012-01-01T23:59:59.000Z

232

Insights into Conventional and Low Temperature Diesel Combustion Using Combustion Trajectory Prediction Model  

E-Print Network [OSTI]

...................................................................................................... 20 2.3 Gas entrainment (original) ............................................................................... 21 2.4 Gas entrainment (improvement)....................................................................... 23 2.5 Fuel consumption... and radiator configuration ................................................. 115 8.1.4 Fuel delivery and measurement system configuration ............................... 116 vi 8.1.5 Engine controller and data acquisition hardware...

Bittle, Joshua A

2014-04-18T23:59:59.000Z

233

Development of Risk Insights for Regulatory Review of a Near-Surface Disposal Facility for Radioactive Waste  

SciTech Connect (OSTI)

Section 3116 of the Ronald W. Reagan National Defense Authorization Act for Fiscal Year 2005 (NDAA) requires the Department of Energy (DOE) to consult with the Nuclear Regulatory Commission (NRC) about non-High Level Waste (HLW) determinations. In its consultative role, NRC performs technical reviews of DOE's waste determinations but does not have regulatory authority over DOE's waste disposal activities. The safety of disposal is evaluated by comparing predicted disposal facility performance to the performance objectives specified in NRC regulations for the disposal of low-level waste (10 CFR Part 61 Subpart C). The performance objectives contain criteria for protection of the public, protection of inadvertent intruders, protection of workers, and stability of the disposal site after closure. The potential radiological dose to receptors typically is evaluated with a performance assessment (PA) model that simulates the release of radionuclides from the disposal site, transport of radionuclides through the environment, and exposure of potential receptors to residual contamination for thousands of years. This paper describes NRC's development and use of independent performance assessment modeling to facilitate review of DOE's non-HLW determination for the Saltstone Disposal Facility (SDF) at the Savannah River Site. NRC's review of the safety of near-surface disposal of radioactive waste at the SDF was facilitated and focused by risk insights developed with an independent PA model. The main components of NRC's performance assessment model are presented. The development of risk insights that allow the staff to focus review efforts on those areas that are most important to satisfying the performance objectives is discussed. Uncertainty analysis was performed of the full stochastic model using genetic variable selection algorithms. The results of the uncertainty analysis were then used to guide the development of simulations of other scenarios to understand the key risk drivers and risk limiters of the SDF. Review emphasis was placed on those aspects of the disposal system that were expected to drive performance: the physical and chemical performance of the cementitious wasteform and concrete vaults. Refinement of the modeling of the degradation and release from the cementitious wasteform had a significant effect on the predicted dose to a member of the public. (authors)

Esh, D.W.; Ridge, A.C.; Thaggard, M. [U.S. Nuclear Regulatory Commission, Mail Stop T7J8, Washington, DC 20555 (United States)

2006-07-01T23:59:59.000Z

234

Cloud Processes: Insights over a Decade into the Links between  

E-Print Network [OSTI]

Cloud Resolving Models Satellite and radar data Field Campaigns Radar Simulators (image: C. McGee) Grid Diffuse Sensible heat flux Latent heat flux Latent heat flux Aerosol direct effects Incoming solar radiation Direct Diffuse Sensible heat flux SiB RAMS CO2 Fluxes: Photosynthesis Respiration CO2 Radiative

Collett Jr., Jeffrey L.

235

Diesel Engine Oil Technology Insights and Opportunities | Department of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMPRelated PathStrategy |in

236

Hybrid Electric Vehicle End-Of-Life Testing On Honda Insights, Gen I Civics And Toyota Gen I Priuses  

SciTech Connect (OSTI)

This technical report details the end-of-life fuel efficiency and battery testing on two model year 2001 Honda Insight hybrid electric vehicles (HEVs), two model year 2003 Honda Civic HEVs, and two model year 2002 Toyota Prius HEVs. The end-of-life testing was conducted after each vehicle has been operated for approximately 160,000 miles. This testing was conducted by the U.S. Department of Energy’s (DOE) Advanced Vehicle Testing Activity (AVTA). The AVTA is part of DOE’s FreedomCAR and Vehicle Technologies Program. SAE J1634 fuel efficiency testing was performed on the six HEVs with the air conditioning (AC) on and off. The AC on and off test results are compared to new vehicle AC on and off fuel efficiencies for each HEV model. The six HEVs were all end-of-life tested using new-vehicle coast down coefficients. In addition, one of each HEV model was also subjected to fuel efficiency testing using coast down coefficients obtained when the vehicles completed 160,000 miles of fleet testing. Traction battery pack capacity and power tests were also performed on all six HEVs during the end-of-life testing in accordance with the FreedomCAR Battery Test Manual For Power-Assist Hybrid Electric Vehicles procedures. When using the new-vehicle coast down coefficients (Phase I testing), 11 of 12 HEV tests (each HEV was tested once with the AC on and once with the AC off) had increases in fuel efficiencies compared to the new vehicle test results. The end-of-life fuel efficiency tests using the end-of-life coast down coefficients (Phase II testing) show decreases in fuel economies in five of six tests (three with the AC on and three with it off). All six HEVs experienced decreases in battery capacities, with the two Insights having the highest remaining capacities and the two Priuses having the lowest remaining capacities. The AVTA’s end-of-life testing activities discussed in this report were conducted by the Idaho National Laboratory; the AVTA testing partner Electric Transportation Applications, and by Exponent Failure Analysis Associates.

James Francfort; Donald Karner; Ryan Harkins; Joseph Tardiolo

2006-02-01T23:59:59.000Z

237

Insight in the Brain: The Cognitive and Neural Bases of Eureka Moments  

SciTech Connect (OSTI)

Where do new ideas come from? Although all new ideas build on old, this can happen in different ways. Some new ideas, or solutions to old problems, are achieved through methodical, analytical processing. Other new ideas come about in a sudden burst of insight, often based on or generating a restructured view of the problem itself. Behavioral, brain imaging, and eye-tracking results all reveal distinct cortical networks contributing to insight solving, as contrasted with analytic solving. Consistently, the way in which people solve problems appears to relate to the way they engage attention and cognitive control: across time, across moods, and across individuals. Insight is favored when people can disengage from strong stimuli and associations - figuratively and literally looking "outside the box" of the problem to suddenly solve with a new idea.

Beeman, Mark [Northwestern University

2013-04-03T23:59:59.000Z

238

The Inhibitor DBMIB Provides Insight into the Functional Architecture of  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2 and NbSe2DifferentTheInforum LIFT Model U.S. Energythe

239

Voices of Experience: Insights on Smart Grid Customer Engagement (July  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of EnergyofProject is onModeling andReportandV ie w o nl ine2013) | Department of

240

Voices of Experience: New Guide Offers Utilities' Insights on Engaging  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of EnergyofProject is onModeling andReportandV ie w o nl ine2013) | Department

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Examination of 1D Solar Cell Model Limitations Using 3D SPICE Modeling: Preprint  

SciTech Connect (OSTI)

To examine the limitations of one-dimensional (1D) solar cell modeling, 3D SPICE-based modeling is used to examine in detail the validity of the 1D assumptions as a function of sheet resistance for a model cell. The internal voltages and current densities produced by this modeling give additional insight into the differences between the 1D and 3D models.

McMahon, W. E.; Olson, J. M.; Geisz, J. F.; Friedman, D. J.

2012-06-01T23:59:59.000Z

242

FRESH INSIGHTS ON THE STRUCTURE OF THE SOLAR CORE  

SciTech Connect (OSTI)

We present new results on the structure of the solar core, obtained with new sets of frequencies of solar low-degree p modes obtained from the BiSON network. We find that different methods used in extracting the different sets of frequencies cause shifts in frequencies, but the shifts are not large enough to affect solar structure results. We find that the BiSON frequencies show that the solar sound speed in the core is slightly larger than that inferred from data from Michelson Doppler Imager low-degree modes, and the uncertainties on the inversion results are smaller. Density results also change by a larger amount, and we find that solar models now tend to show smaller differences in density compared to the Sun. The result is seen at all radii, a result of the fact that conservation of mass implies that density differences in one region have to cancel out density differences in others, since our models are constructed to have the same mass as the Sun. The uncertainties on the density results are much smaller too. We attribute the change in results to having more, and lower frequency, low-degree mode frequencies available. These modes provide greater sensitivity to conditions in the core.

Basu, Sarbani [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-8101 (United States); Chaplin, William J.; Elsworth, Yvonne [School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); New, Roger [Faculty of Arts, Computing, Engineering and Sciences, Sheffield Hallam University, Sheffield S1 1WB (United Kingdom); Serenelli, Aldo M. [Max Planck Institute for Astrophysics K. Schwarzschild Str. 1, Garching, D-85471 (Germany)], E-mail: sarbani.basu@yale.edu, E-mail: w.j.chaplin@bham.ac.uk, E-mail: y.p.elsworth@bham.ac.uk, E-mail: r.new@shu.ac.uk, E-mail: aldos@mpa-garching.mpg.de

2009-07-10T23:59:59.000Z

243

Amyloid Structure and Assembly: Insights from Scanning Transmission Electron Microscopy  

SciTech Connect (OSTI)

Amyloid fibrils are filamentous protein aggregates implicated in several common diseases such as Alzheimer's disease and type II diabetes. Similar structures are also the molecular principle of the infectious spongiform encephalopathies such as Creutzfeldt-Jakob disease in humans, scrapie in sheep, and of the so-called yeast prions, inherited non-chromosomal elements found in yeast and fungi. Scanning transmission electron microscopy (STEM) is often used to delineate the assembly mechanism and structural properties of amyloid aggregates. In this review we consider specifically contributions and limitations of STEM for the investigation of amyloid assembly pathways, fibril polymorphisms and structural models of amyloid fibrils. This type of microscopy provides the only method to directly measure the mass-per-length (MPL) of individual filaments. Made on both in vitro assembled and ex vivo samples, STEM mass measurements have illuminated the hierarchical relationships between amyloid fibrils and revealed that polymorphic fibrils and various globular oligomers can assemble simultaneously from a single polypeptide. The MPLs also impose strong constraints on possible packing schemes, assisting in molecular model building when combined with high-resolution methods like solid-state nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR).

Goldsbury, C.; Wall, J.; Baxa, U.; Simon, M. N.; Steven, A. C.; Engel, A.; Aebi, U.; Muller, S. A.

2011-01-01T23:59:59.000Z

244

Radio Galaxies in Cooling Cores: Insights from a Complete Sample  

E-Print Network [OSTI]

We have observed a new, complete, cooling-core sample with the VLA, in order to understand how the massive black hole in the central galaxy interacts with the local cluster plasma. We find that every cooling core is currently being energized by an active radio jet, which has probably been destabilized by its interaction with the cooling core. We argue that current models of cooling-core radio galaxies need to be improved before they can be used to determine the rate at which the jet is heating the cooling core. We also argue that the extended radio haloes we see in many cooling-core clusters need extended, in situ re-energization, which cannot be supplied solely by the central galaxy.

J. A. Eilek; F. N. Owen

2006-12-04T23:59:59.000Z

245

Insight from Fukushima Daiichi Unit 3 Investigations using MELCOR  

SciTech Connect (OSTI)

During the emergency response period of the accidents that took place at Fukushima Daiichi in March of 2011, researchers at Oak Ridge National Laboratory (ORNL) conducted a number of studies using the MELCOR code to help understand what was occurring and what had occurred. During the post-accident period, the Department of Energy (DOE) and the US Nuclear Regulatory Commission (NRC) jointly sponsored a study of the Fukushima Daiichi accident with collaboration among Oak Ridge, Sandia, and Idaho national laboratories. The purpose of the study was to compile relevant data, reconstruct the accident progression using computer codes, assess the codes predictive capabilities, and identify future data needs. The current paper summarizes some of the early MELCOR simulations and analyses conducted at ORNL of the Fukushima Daiichi Unit 3 accident. Extended analysis and discussion of the Unit 3 accident is also presented taking into account new knowledge and modeling refinements made since the joint DOE/NRC study.

Robb, Kevin R. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Francis, Matthew W. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Ott, Larry J. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

2014-01-01T23:59:59.000Z

246

Effectively Addressing NASA's Organizational and Safety Culture: Insights from Systems Safety and Engineering Systems1  

E-Print Network [OSTI]

to what were termed organizational and safety culture issues, but more work is needed if leaders at NASA1 Effectively Addressing NASA's Organizational and Safety Culture: Insights from Systems Safety, Nicolas Dulac, Lydia Fraile, Karen Marais MIT 1.0 Introduction Safety is an emergent, system property

de Weck, Olivier L.

247

Reliability Assessment of Mass-Market Software: Insights from Windows Vista  

E-Print Network [OSTI]

Reliability Assessment of Mass-Market Software: Insights from Windows Vista® Paul Luo Li, Mingtian Ni, Song Xue, Joseph P. Mullally, Mario Garzia, Mujtaba Khambatti Microsoft Windows Reliability Team One Microsoft Way Redmond, WA USA Paul.Li@Microsoft.com Abstract Assessing the reliability of mass

Khambatt, Mujtaba

248

Indirect validation of tropospheric nitrogen dioxide retrieved from the OMI satellite instrument: Insight into the seasonal  

E-Print Network [OSTI]

Click Here for Full Article Indirect validation of tropospheric nitrogen dioxide retrieved from nitrogen dioxide retrieved from the OMI satellite instrument: Insight into the seasonal variation of the hydroxyl radical (OH). Nitrogen dioxide (NO2) is an indicator of surface air quality that is associated

Dirksen, Ruud

249

Charge separation in nanoscale photovoltaic materials: recent insights from first-principles electronic structure theory  

E-Print Network [OSTI]

Charge separation in nanoscale photovoltaic materials: recent insights from first-scale photovoltaic materials; in particular recent theoretical/computational work based on first principles electron and hole in so-called excitonic photovoltaic cells. Emphasis is placed on theoretical results

Wu, Zhigang

250

The Rock Varnish Revolution: New Insights from Microlaminations and the Contributions of Tanzhuo Liu  

E-Print Network [OSTI]

in potential source materials. In the ensuing two centu- ries, investigations into rock varnish have beenThe Rock Varnish Revolution: New Insights from Microlaminations and the Contributions of Tanzhuo Liu Ronald I. Dorn* School of Geographical Sciences, Arizona State University Abstract Rock varnish

Dorn, Ron

251

Performance on an episodic encoding task yields further insight into functional brain development  

E-Print Network [OSTI]

Performance on an episodic encoding task yields further insight into functional brain development August 2006 To further characterize changes in functional brain development that are associated in the direction predicted by the endpoint analysis. We conclude that the patterns of brain activation associated

252

Supplemental Data Insights into Dissolved Organic Matter Complexity in Rainwater from Continental  

E-Print Network [OSTI]

Supplemental Data Insights into Dissolved Organic Matter Complexity in Rainwater from. Storm Number Storm Type Date Collected Amount (mm) pH DOC (µM) 688 Terrestrial 3/17/07 8.6 4.7 64.6 718

Meskhidze, Nicholas

253

Welding: insights from high-temperature analogue experiments Steven L. Quane, J.K. Russell*  

E-Print Network [OSTI]

Welding: insights from high-temperature analogue experiments Steven L. Quane, J.K. Russell* Igneous of pyroclastic deposits during welding is incompletely understood and is based on a surprisingly small number roles of emplacement temperature, load and glass transition temperature in welding of pyroclastic

Russell, Kelly

254

Is the Internet for Porn? An Insight Into the Online Adult Industry  

E-Print Network [OSTI]

Is the Internet for Porn? An Insight Into the Online Adult Industry Gilbert Wondracek1 , Thorsten Introduction "The Internet is for Porn" is the title of a satirical song that has been viewed several million at work. With a total worth of more than 97 billion USD in 2006 [14], the Internet porn industry yields

Kruegel, Christopher

255

Recent insights into Cerebral Cavernous Malformations: a complex jigsaw puzzle under construction  

E-Print Network [OSTI]

Recent insights into Cerebral Cavernous Malformations: a complex jigsaw puzzle under construction.faurobert@ujf-grenoble.fr Running title: Emerging signaling pathways regulated by CCM proteins Abstract : Cerebral cavernous the etiology of the disease. Cerebral cavernous malformations (CCM) are common vascular malformations

Paris-Sud XI, Université de

256

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

E-Print Network [OSTI]

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

Diggle, Peter J.

257

Applicability of InSAR to tropical volcanoes: insights from Central AmericaQ1  

E-Print Network [OSTI]

volcanoes: insights from Central AmericaQ1 S. K. EBMEIER1*, J. BIGGS2,3, T. A. MATHER1 & F. AMELUNG3 1 COMET. 2009; Biggs et al. 2010), as well as a variety of shallower surface processes. These include previously thought to be quiescent (e.g. on the East African Rift: Biggs et al. 2009) and at locations

Biggs, Juliet

258

IBM Center for Applied Insights Energy and Utilities The value of smarter energy  

E-Print Network [OSTI]

IBM Center for Applied Insights Energy and Utilities The value of smarter energy Making the case. Utilities are increasingly challenged to make better, smarter use of existing assets to generate financial return. The transformation from conventional utility networks to much more efficient, smarter grids has

259

Size effects in bimetallic nickelgold nanowires: Insight from atomic force microscopy nanoindentation  

E-Print Network [OSTI]

Size effects in bimetallic nickel­gold nanowires: Insight from atomic force microscopy the local plastic behavior and hardness properties of electrodeposited bimetallic Ni­Au NWs ranging from 60 rights reserved. Keywords: Atomic force microscopy (AFM); Nanowire; Nickel; Gold; Nanoindentation 1

Sansoz, Frederic

260

Catalysis Today 53 (1999) 433441 New insights into methanol synthesis catalysts from X-ray absorption  

E-Print Network [OSTI]

O and Cr2O3 mixtures and produced methanol in low yields from CO­H2 mixtures at high temperatures (593Catalysis Today 53 (1999) 433­441 New insights into methanol synthesis catalysts from X a consistent structural picture of methanol synthesis catalysts. Copper metal is the principal Cu species

Iglesia, Enrique

Note: This page contains sample records for the topic "insight macroeconomic model" 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

The Anatomy of a Memory: Insights Into How Information is Stored in the Brain  

E-Print Network [OSTI]

The Anatomy of a Memory: Insights Into How Information is Stored in the Brain Maria Concetta, to the ability of our brains to record and to store our experiences. Memory is the glue that binds our mental and biologists have joined forces to open up the "black box" to study how the brain and behavior allows us

Qian, Ning

262

@scale: Insights from a Large, Long-Lived Appliance Stephen Dawson-Haggerty  

E-Print Network [OSTI]

Design, Measurement, Performance Keywords Energy, Audit, Building, Power, Wireless, Sensor Network 1@scale: Insights from a Large, Long-Lived Appliance Energy WSN Stephen Dawson-Haggerty , Steven Lanzisera , Jay Taneja , Richard Brown , and David Culler Computer Science Division Environmental Energy

Culler, David E.

263

Thorium isotopes in the western Mediterranean Sea: an insight into the marine particle dynamics  

E-Print Network [OSTI]

Thorium isotopes in the western Mediterranean Sea: an insight into the marine particle dynamics M rights reserved. Keywords: thorium; isotopes; sea water; particles; sedimentation; Mediterranean Sea 1 physical, chemical and biological processes and sometimes non-steady-state condi- tions [1^4]. Thorium

Coppola, Laurent

264

Global pattern of earthquakes and seismic energy distributions: Insights for the mechanisms of plate tectonics  

E-Print Network [OSTI]

Global pattern of earthquakes and seismic energy distributions: Insights for the mechanisms October 2011 Keywords: Global seismicity Declustered catalogue Earthquake energy distribution Plate% of the total energy in the first ~50 km; only 6% of events dissipates about 20% of the total amount of energy

Doglioni, Carlo

265

Insights into the links between microstructure and Bishop's parameter for unsaturated soils  

E-Print Network [OSTI]

are needed to describe in a comprehensive manner the mechanical behaviour of these soils. In recent yearsInsights into the links between microstructure and Bishop's parameter for unsaturated soils J. M of unsaturated soils is a long standing de- bate. It is now acknowledged that two stress state variables

Paris-Sud XI, Université de

266

Landscape connectivity analysis for conservation: insights from combining new methods with ecological and genetic  

E-Print Network [OSTI]

PREFACE Landscape connectivity analysis for conservation: insights from combining new methods Landscape connectivity is a multi-scalar concept allowing the investigation of how the interaction between species movement abilities and landscape structure affects species survival, gene flow and other key

Fortin, Marie Josee

267

New insights on the runout of large landslides in the Valles-Marineris canyons, Mars  

E-Print Network [OSTI]

New insights on the runout of large landslides in the Valles-Marineris canyons, Mars E. Lajeunesse-Marineris canyons, Mars, Geophys. Res. Lett., 33, L04403, doi:10.1029/ 2005GL025168. 1. Introduction [2] Since the first pictures returned from Viking Orbiters, the numerous landslides identified along the canyons

Lajeunesse, Eric

268

New Insights into the Mechanisms of Water-Stress-Induced Cavitation in Conifers  

E-Print Network [OSTI]

New Insights into the Mechanisms of Water-Stress-Induced Cavitation in Conifers Herve´ Cochard of Edinburgh, Edinburgh EH9 3JN, United Kingdom (M.M.) Cavitation resistance is a key parameter to understand at a pressure sufficient to aspirate pit tori and well above the pressure for cavitation induction we failed

Mencuccini, Maurizio

269

Oxygen diffusion in solid oxide fuel cell cathode and electrolyte materials: mechanistic insights from atomistic simulations  

E-Print Network [OSTI]

. Current targets of cost and durability necessitate solid oxide fuel cells to operate in the intermediateOxygen diffusion in solid oxide fuel cell cathode and electrolyte materials: mechanistic insights oxide fuel cells are of technological interest as they offer high efficiency for energy conversion

Yildiz, Bilge

270

Hybrid Zones and Sexual Selection 503 HYBRID ZONES AND SEXUAL SELECTION: INSIGHTS FROM  

E-Print Network [OSTI]

Hybrid Zones and Sexual Selection 503 HYBRID ZONES AND SEXUAL SELECTION: INSIGHTS FROM THE AWASH BABOON HYBRID ZONE (Papio hamadryas anubis x P. h. hamadryas) Thore J. Bergman and Jacinta C. Beehner, have focused on the impact of sexual selection on populations of naturally occurring hybrid animals

271

Bright and dark excitons in semiconductor carbon nanotubes: insights from electronic structure calculations  

E-Print Network [OSTI]

Bright and dark excitons in semiconductor carbon nanotubes: insights from electronic structure Article on the web 23rd March 2009 DOI: 10.1039/b818473a We review electronic structure calculations (bright) and optically forbidden (dark) states from the lowest excitonic band of the nanotubes

Tretiak, Sergei

272

The central Kenya peralkaline province: Insights into the evolution of peralkaline salic magmas  

E-Print Network [OSTI]

The central Kenya peralkaline province: Insights into the evolution of peralkaline salic magmas Ra rue de la Férollerie, 45071 Orléans cedex 2, France Abstract The central Kenya peralkaline processes is summarized. Keywords: Kenya; Petrogenesis; Peralkaline magmas 1. Introduction In the central

Boyer, Edmond

273

New insights into the chemical composition of chitinozoans Jrmy Jacob1,  

E-Print Network [OSTI]

1 New insights into the chemical composition of chitinozoans Jérémy Jacob1, , Florentin Paris2 dominated by aromatic groups with a low contribution of aliphatics and oxygen- or nitrogen-bearing compounds-GC/MS, chitin, Lower Palaeozoic Corresponding author: jeremy.jacob@univ-orleans.fr #12;2 1. Introduction

Boyer, Edmond

274

Temporal and spatial scaling of hydraulic response to recharge in fractured aquifers: Insights from a frequency domain analysis  

E-Print Network [OSTI]

Temporal and spatial scaling of hydraulic response to recharge in fractured aquifers: Insights from investigate the hydraulic response to recharge of a fractured aquifer, using a frequency domain approach scaling of hydraulic response to recharge in fractured aquifers: Insights from a frequency domain analysis

Paris-Sud XI, Université de

275

Climate Insights 101 Questions and Discussion Points Module 1, Lesson 1: CO2 and the Greenhouse Effect  

E-Print Network [OSTI]

Effect 1 Climate Insights 101 Questions and Discussion Points Module 1, Lesson 1: CO2 and the Greenhouse Effect Available at http://pics.uvic.ca/education/climate-insights-101 1. CO2 and the Greenhouse Effect Questions: How did the term "greenhouse effect" originate? Why did it stick in the public imagination? Why

Pedersen, Tom

276

Structural and biochemical insights into 2?-O-methylation at the 3?-terminal nucleotide of RNA by Hen1  

SciTech Connect (OSTI)

Small RNAs of {approx}20-30 nt have diverse and important biological roles in eukaryotic organisms. After being generated by Dicer or Piwi proteins, all small RNAs in plants and a subset of small RNAs in animals are further modified at their 3'-terminal nucleotides via 2'-O-methylation, carried out by the S-adenosylmethionine-dependent methyltransferase (MTase) Hen1. Methylation at the 3' terminus is vital for biological functions of these small RNAs. Here, we report four crystal structures of the MTase domain of a bacterial homolog of Hen1 from Clostridium thermocellum and Anabaena variabilis, which are enzymatically indistinguishable from the eukaryotic Hen1 in their ability to methylate small single-stranded RNAs. The structures reveal that, in addition to the core fold of the MTase domain shared by other RNA and DNA MTases, the MTase domain of Hen1 possesses a motif and a domain that are highly conserved and are unique to Hen1. The unique motif and domain are likely to be involved in RNA substrate recognition and catalysis. The structures allowed us to construct a docking model of an RNA substrate bound to the MTase domain of bacterial Hen1, which is likely similar to that of the eukaryotic counterpart. The model, supported by mutational studies, provides insight into RNA substrate specificity and catalytic mechanism of Hen1.

Chan, Chio Mui; Zhou, Chun; Brunzelle, Joseph S.; Huang, Raven H.; (UIUC); (NWU)

2010-01-28T23:59:59.000Z

277

Viscoelastic Model for Lung Parenchyma for Multi-Scale Modeling of Respiratory System, Phase II: Dodecahedral Micro-Model  

SciTech Connect (OSTI)

In the first year of this contractual effort a hypo-elastic constitutive model was developed and shown to have great potential in modeling the elastic response of parenchyma. This model resides at the macroscopic level of the continuum. In this, the second year of our support, an isotropic dodecahedron is employed as an alveolar model. This is a microscopic model for parenchyma. A hopeful outcome is that the linkage between these two scales of modeling will be a source of insight and inspiration that will aid us in the final year's activity: creating a viscoelastic model for parenchyma.

Freed, Alan D.; Einstein, Daniel R.; Carson, James P.; Jacob, Rick E.

2012-03-01T23:59:59.000Z

278

Game theoretic models of inter-firm R&D dynamics in semiconductor manufacturing  

E-Print Network [OSTI]

This dissertation demonstrates that valuable strategic insight and a reasonable measure of predictive power can be obtained by developing and analyzing context-rich parsimonious game theoretic strategy models during large ...

Heaps-Nelson, G. Thomas

2013-01-01T23:59:59.000Z

279

Running head: COGNITIVE ROBOTICS AND EXPERIMENTAL PSYCHOLOGY Computational Modeling/Cognitive Robotics Compliments  

E-Print Network [OSTI]

Running head: COGNITIVE ROBOTICS AND EXPERIMENTAL PSYCHOLOGY Computational Modeling/Cognitive;Cognitive Robotics and Experimental Psychology 2 Abstract This position paper explores the possible contributions to the science of psychology from insights obtained by building and experimenting with cognitive

Memphis, University of

280

Structural and Mechanistic Insights into C-P Bond Hydrolysis by Phosphonoacetate Hydrolase  

SciTech Connect (OSTI)

Bacteria have evolved pathways to metabolize phosphonates as a nutrient source for phosphorus. In Sinorhizobium meliloti 1021, 2-aminoethylphosphonate is catabolized to phosphonoacetate, which is converted to acetate and inorganic phosphate by phosphonoacetate hydrolase (PhnA). Here we present detailed biochemical and structural characterization of PhnA that provides insights into the mechanism of C-P bond cleavage. The 1.35 {angstrom} resolution crystal structure reveals a catalytic core similar to those of alkaline phosphatases and nucleotide pyrophosphatases but with notable differences, such as a longer metal-metal distance. Detailed structure-guided analysis of active site residues and four additional cocrystal structures with phosphonoacetate substrate, acetate, phosphonoformate inhibitor, and a covalently bound transition state mimic provide insight into active site features that may facilitate cleavage of the C-P bond. These studies expand upon the array of reactions that can be catalyzed by enzymes of the alkaline phosphatase superfamily.

Agarwal, Vinayak; Borisova, Svetlana A.; Metcalf, William W.; van der Donk, Wilfred A.; Nair, Satish K. (UIUC)

2011-12-22T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

CIMS: An Integrated US-Canadian Model  

E-Print Network [OSTI]

CIMS: An Integrated US-Canadian Model John Nyboer, Simon Fraser University As the US addresses energy supply security and, at a state level, various environmental objectives, it is not clear what effect these will have on Canada's exports... technologies in both countries, one can obtain insight into economic and policy consequences for Canada of various US energy scenarios. ...

Nyboer, J.

2006-01-01T23:59:59.000Z

282

Wing Shape of Four New Bee Fossils (Hymenoptera: Anthophila) Provides Insights to Bee Evolution  

E-Print Network [OSTI]

insights into more recent phenomena among bee evolution, such as changing patterns of biogeography and responses to Paleogene and Neogene geological events. Four of the most important deposits with bee fossils are the Eckfeld/Messel oil shales of Germany... compressions in oil shale. The flora found in this section of the basin suggests a tropical to subtropical climate with a distinct dry season [37], and occurred at a paleoelevation of ,1500–2900 m [38]. The Oligocene lacustrine beds (‘calcaire de Campagne...

Dehon, Manuel; Michez, Denis; Nel, André Engel, Michael S.; De Meulemeester, Thibaut

2014-10-29T23:59:59.000Z

283

Managing aging in nuclear power plants: Insights from NRC maintenance team inspection reports  

SciTech Connect (OSTI)

A plant`s maintenance program is the principal vehicle through which age-related degradation is managed. From 1988 to 1991, the NRC evaluated the maintenance program of every nuclear power plant in the United States. Forty-four out of a total of 67 of the reports issued on these in-depth team inspections were reviewed for insights into the strengths and weaknesses of the programs as related to the need to understand and manage the effects of aging on nuclear plant systems, structures, and components. Relevant information was extracted from these inspection reports and sorted into several categories, including Specific Aging Insights, Preventive Maintenance, Predictive Maintenance and Condition Monitoring, Post Maintenance Testing, Failure Trending, Root Cause Analysis and Usage of Probabilistic Risk Assessment in the Maintenance Process. Specific examples of inspection and monitoring techniques successfully used by utilities to detect degradation due to aging have been identified. The information also was sorted according to systems and components, including: Auxiliary Feedwater, Main Feedwater, High Pressure Injection for both BWRs and PWRs, Service Water, Instrument Air, and Emergency Diesel Generator Air Start Systems, and Emergency Diesel Generators Air Start Systems, emergency diesel generators, electrical components such as switchgear, breakers, relays, and motor control centers, motor operated valves and check valves. This information was compared to insights gained from the Nuclear Plant Aging Research (NPAR) Program. Attributes of plant maintenance programs where the NRC inspectors felt that improvement was needed to properly address the aging issue also are discussed.

Fresco, A.; Subudhi, M.; Gunther, W.; Grove, E.; Taylor, J. [Brookhaven National Lab., Upton, NY (United States)

1993-12-01T23:59:59.000Z

284

Insights from Smart Meters: The Potential for Peak-Hour Savings from Behavior-Based Programs  

SciTech Connect (OSTI)

The rollout of smart meters in the last several years has opened up new forms of previously unavailable energy data. Many utilities are now able in real-time to capture granular, household level interval usage data at very high-frequency levels for a large proportion of their residential and small commercial customer population. This can be linked to other time and locationspecific information, providing vast, constantly growing streams of rich data (sometimes referred to by the recently popular buzz word, “big data”). Within the energy industry there is increasing interest in tapping into the opportunities that these data can provide. What can we do with all of these data? The richness and granularity of these data enable many types of creative and cutting-edge analytics. Technically sophisticated and rigorous statistical techniques can be used to pull interesting insights out of this highfrequency, human-focused data. We at LBNL are calling this “behavior analytics”. This kind of analytics has the potential to provide tremendous value to a wide range of energy programs. For example, highly disaggregated and heterogeneous information about actual energy use would allow energy efficiency (EE) and/or demand response (DR) program implementers to target specific programs to specific households; would enable evaluation, measurement and verification (EM&V) of energy efficiency programs to be performed on a much shorter time horizon than was previously possible; and would provide better insights in to the energy and peak hour savings associated with specifics types of EE and DR programs (e.g., behavior-based (BB) programs). In this series, “Insights from Smart Meters”, we will present concrete, illustrative examples of the type of value that insights from behavior analytics of these data can provide (as well as pointing out its limitations). We will supply several types of key findings, including: • Novel results, which answer questions the industry previously was unable to answer; • Proof-of-concept analytics tools that can be adapted and used by others; and • Guidelines and protocols that summarize analytical best practices. This report focuses on one example of the kind of value that analysis of this data can provide: insights into whether behavior-based (BB) efficiency programs have the potential to provide peak-hour energy savings.

Todd, Annika; Perry, Michael; Smith, Brian; Sullivan, Michael; Cappers, Peter; Goldman, Charles

2014-03-25T23:59:59.000Z

285

Computationally Efficient Cardiac Bioelectricity Models Toward Whole-Heart Simulation  

E-Print Network [OSTI]

Computationally Efficient Cardiac Bioelectricity Models Toward Whole-Heart Simulation Nathan A of developing new insights and techniques in simulating the electrical behavior of the human heart. While very A computationally feasible whole-heart model could be invaluable in the study of human heart pathology

Branicky, Michael S.

286

Integrated Assessment Modeling  

SciTech Connect (OSTI)

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

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

2012-10-31T23:59:59.000Z

287

Insights into a researcher's attempt to study the mentoring needs of first-year, white, female teachers in diverse schools  

E-Print Network [OSTI]

INSIGHTS INTO A RESEARCHER’S ATTEMPT TO STUDY THE MENTORING NEEDS OF FIRST-YEAR, WHITE, FEMALE TEACHERS IN DIVERSE SCHOOLS A Dissertation by KATHY ANN ATTAWAY Submitted to the Office of Graduate Studies of Texas A&M University... in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2007 Major Subject: Educational Administration INSIGHTS INTO A RESEARCHER’S ATTEMPT TO STUDY THE MENTORING NEEDS OF FIRST-YEAR, WHITE, FEMALE...

Attaway, Kathy Ann

2008-10-10T23:59:59.000Z

288

E-AMOM: An Energy-Aware Modeling and Optimization Methodology for Scientific Applications on Multicore Systems  

E-Print Network [OSTI]

power consumption of the scientific applications. Further, we optimize our applications based upon insights provided by the performance models to reduce runtime of the applications. Our methods and techniques are able to save up to 18% in energy...

Lively, Charles

2012-07-16T23:59:59.000Z

289

Essays in Empirical Macroeconomics: Applications to the GCC Monetary Union  

E-Print Network [OSTI]

for several different reasons. First, it accounts for 45% of proven global oil reserves, and 25% of global natural gas reserves. The GCC area produces 22% and 6.5% of global oil and gas output, respectively. Second, table 1.1 shows the aggregate GDP... reserves that were accumulated from excess oil revenues. Thus, central banks in the GCC area opted to use foreign asset reserves instead of monetizing the fiscal deficits. The high degree of convergence and stability among exchange rates in the GCC...

Al-Hassan, Abdullah Mohammed

2008-01-01T23:59:59.000Z

290

Three essays on empirical macroeconomics and financial markets  

E-Print Network [OSTI]

................................................................................................................ 10 1.6 Data .................................................................................................................... 14 1.7 Estimation and implications ............................................................................... 15 1... more data in future research ........................................................... 22 1.10 Conclusions ...................................................................................................... 22 2 Chapter 2: Do repurchase agreement...

Chen, Lili

2012-08-21T23:59:59.000Z

291

Essays on the macroeconomics of the labor markets  

E-Print Network [OSTI]

In Chapter 1, I study the efficiency properties of competitive search equilibria in economies with informational asymmetries. Employers and workers are both risk-neutral and ex-ante homogeneous. I characterize an equilibrium ...

Guerrieri, Veronica

2006-01-01T23:59:59.000Z

292

16th CONFERENCE OF THE RESEARCH NETWORK MACROECONOMICS AND  

E-Print Network [OSTI]

and accompanied by market- friendly (de)regulatory mechanisms mainly founded on the belief that liberalised systemic failures and their consequences in the capitalist economy. Keywords: Financial liberalisation of financial liberalisation-modernisation policies implemented all around the World since the 1970s. Its scope

Boyer, Edmond

293

Houses as ATMs? Mortgage Refinancing and Macroeconomic Uncertainty  

E-Print Network [OSTI]

Michael Michaux USC Marshall Nikolai Roussanov Wharton and NBER September 11, 2011 Abstract Mortgage Kaplan, Dirk Krueger, Debbie Lucas, Hanno Lustig, Vincenzo Quadrini, Monika Piazzesi, Victor Rios

Sadeh, Norman M.

294

Economics 309 Fall 2000 Macroeconomics I Mr. Miller  

E-Print Network [OSTI]

Accounting 3. Saving and Investment 4. Price Level and Interest Rates 5. Employment and Unemployment Readings of Monetary Economics, September 1982. 3. Perron, "The Great Crash, the Oil Price Shock, and the Unit Root. Investment Demand 3. Saving Equals Investment A. Asset Markets 1. Demand for Money 2. Supply of Money 3

Ahmad, Sajjad

295

Assumption to the Annual Energy Outlook 2014 - Macroeconomic Activity Module  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"Click worksheet9,1,50022,3,,,,6,1,,781Title: Telephone:shortOil and Natural8U.S.NA NA NAEnergy

296

Global and Macroeconomic Environment for Business Stephen M. Miller  

E-Print Network [OSTI]

the first session, you should read Tutorial I and Reading I (Sections A, B, and C). Teaching Philosophy: My philosophy flows from three assumptions about the teaching and learning process. First, the instructor must Treasurer can manage foreign exchange risk from global operations. Office Hours: By appointment and MW 1

Ahmad, Sajjad

297

Energy Production and Trade: An Overview of Some Macroeconomic Issues  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecemberSteam Coal Import96Nebraska NuclearDecade2003 Detailed

298

Structural Insights into the Functional Role of the Hcn Sub-domain of the  

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 systemsBiSiteNeutronStrategic PlanStructuralMethodologyInsights into

299

Structural Insights into the Interaction Between a Potent Anti-Inflammatory  

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 systemsBiSiteNeutronStrategic PlanStructuralMethodologyInsights

300

'Insights of the Decade' Enabled by NERSC - NERSC Center News, Feb 10, 2011  

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

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

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Domain wall motion and electromechanical strain in lead-free piezoelectrics: Insight from the model system (1 ? x)Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}–x(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} using in situ high-energy X-ray diffraction during application of electric fields  

SciTech Connect (OSTI)

The piezoelectric compositions (1 ? x)Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}–x(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} (BZT-xBCT) span a model lead-free morphotropic phase boundary (MPB) between room temperature rhombohedral and tetragonal phases at approximately x?=?0.5. In the present work, in situ X-ray diffraction measurements during electric field application are used to elucidate the origin of electromechanical strain in several compositions spanning the tetragonal compositional range 0.6???x???0.9. As BCT concentration decreases towards the MPB, the tetragonal distortion (given by c/a-1) decreases concomitantly with an increase in 90° domain wall motion. The increase in observed macroscopic strain is predominantly attributed to the increased contribution from 90° domain wall motion. The results demonstrate that domain wall motion is a significant factor in achieving high strain and piezoelectric coefficients in lead-free polycrystalline piezoelectrics.

Tutuncu, Goknur [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States); Li, Binzhi [Department of Chemical Engineering and Materials Science, University of California, Davis, Davis, California 95616 (United States); Bowman, Keith [Illinois Institute of Technology, Armour College of Engineering, Chicago, Illinois 60616 (United States); School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Jones, Jacob L., E-mail: JacobJones@ncsu.edu [Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695 (United States)

2014-04-14T23:59:59.000Z

302

Comments on the use of computer models for merger analysis in the electricity industry  

E-Print Network [OSTI]

that the commission is considering, electricity market models, production cost/optimal power flow models, and hybridsComments on the use of computer models for merger analysis in the electricity industry FERC Docket for market power in electricity markets. These analyses have yielded several insights about the application

California at Berkeley. University of

303

A phenomenological model of peripheral and central neural responses to amplitude-modulated tones  

E-Print Network [OSTI]

A phenomenological model of peripheral and central neural responses to amplitude-modulated tones 2004; accepted 30 June 2004 A phenomenological model with time-varying excitation and inhibition of this study are to gain insights on coding strategies. As a result, the model is phenomenological in nature

Carney, Laurel H.

304

Development of Sulfur and Carbon Tolerant Reforming Alloy Catalysts Aided by Fundamental Atomistics Insights  

SciTech Connect (OSTI)

Current hydrocarbon reforming catalysts suffer from rapid carbon and sulfur poisoning. Even though there is a tremendous incentive to develop more efficient catalysts, these materials are currently formulated using inefficient trial and error experimental approaches. We have utilized a novel hybrid experimental/theoretical approach, combining quantum Density Functional Theory (DFT) calculations and various state-of-the-art experimental tools, to formulate carbon tolerant reforming catalysts. We have employed DFT calculations to develop molecular insights into the elementary chemical transformations that lead to carbon poisoning of Ni catalysts. Based on the obtained molecular insights, we have identified, using DFT quantum calculation, Sn/Ni alloy as a potential carbon tolerant reforming catalyst. Sn/Ni alloy was synthesized and tested in steam reforming of methane, propane, and isooctane. We demonstrated that the alloy catalyst is carbon-tolerant under nearly stoichiometric steam-to-carbon ratios. Under these conditions, monometallic Ni is rapidly poisoned by sp2 carbon deposits. The research approach is distinguished by a few characteristics: (a) Knowledge-based, bottom-up approach, compared to the traditional trial and error approach, allows for a more efficient and systematic discovery of improved catalysts. (b) The focus is on exploring alloy materials which have been largely unexplored as potential reforming catalysts.

Suljo Linic

2006-08-31T23:59:59.000Z

305

Development of Sulfur and Carbon Tolerant Reforming Alloy Catalysts Aided Fundamental Atomistic Insights  

SciTech Connect (OSTI)

Current hydrocarbon reforming catalysts suffer from rapid carbon and sulfur poisoning. Even though there is a tremendous incentive to develop more efficient catalysts, these materials are currently formulated using inefficient trial and error experimental approaches. We have utilized a hybrid experimental/theoretical approach, combining quantum Density Functional Theory (DFT) calculations and various state-of-the-art experimental tools, to formulate carbon tolerant reforming catalysts. We have employed DFT calculations to develop molecular insights into the elementary chemical transformations that lead to carbon poisoning of Ni catalysts. Based on the obtained molecular insights, we have identified, using DFT quantum calculation, various Ni alloy catalysts as potential carbon tolerant reforming catalysts. The alloy catalysts were synthesized and tested in steam reforming and partial oxidation of methane, propane, and isooctane. We demonstrated that the alloy catalysts are much more carbon-tolerant than monometallic Ni catalysts under nearly stoichiometric steam-to-carbon ratios. Under these conditions, monometallic Ni is rapidly poisoned by sp2 carbon deposits. The research approach is distinguished by two characteristics: (a) knowledge-based, bottomup approach, compared to the traditional trial and error approach, allows for a more efficient and systematic discovery of improved catalysts. (b) the focus is on exploring alloy materials which have been largely unexplored as potential reforming catalysts.

Suljo Linic

2008-12-31T23:59:59.000Z

306

Chemical kinetics and combustion modeling  

SciTech Connect (OSTI)

The goal of this program is to gain qualitative insight into how pollutants are formed in combustion systems and to develop quantitative mathematical models to predict their formation rates. The approach is an integrated one, combining low-pressure flame experiments, chemical kinetics modeling, theory, and kinetics experiments to gain as clear a picture as possible of the process in question. These efforts are focused on problems involved with the nitrogen chemistry of combustion systems and on the formation of soot and PAH in flames.

Miller, J.A. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

307

Crystal Structure of UBA2[superscript ufd]-Ubc9: Insights into E1-E2 Interactions in Sumo Pathways  

SciTech Connect (OSTI)

Canonical ubiquitin-like proteins (UBLs) such as ubiquitin, Sumo, NEDD8, and ISG15 are ligated to targets by E1-E2-E3 multienzyme cascades. The Sumo cascade, conserved among all eukaryotes, regulates numerous biological processes including protein localization, transcription, DNA replication, and mitosis. Sumo conjugation is initiated by the heterodimeric Aos1-Uba2 E1 enzyme (in humans called Sae1-Uba2), which activates Sumo's C-terminus, binds the dedicated E2 enzyme Ubc9, and promotes Sumo C-terminal transfer between the Uba2 and Ubc9 catalytic cysteines. To gain insights into details of E1-E2 interactions in the Sumo pathway, we determined crystal structures of the C-terminal ubiquitin fold domain (ufd) from yeast Uba2 (Uba2{sup ufd}), alone and in complex with Ubc9. The overall structures of both yeast Uba2{sup ufd} and Ubc9 superimpose well on their individual human counterparts, suggesting conservation of fundamental features of Sumo conjugation. Docking the Uba2{sup ufd}-Ubc9 and prior full-length human Uba2 structures allows generation of models for steps in Sumo transfer from Uba2 to Ubc9, and supports the notion that Uba2 undergoes remarkable conformational changes during the reaction. Comparisons to previous structures from the NEDD8 cascade demonstrate that UBL cascades generally utilize some parallel E1-E2 interaction surfaces. In addition, the structure of the Uba2{sup ufd}-Ubc9 complex reveals interactions unique to Sumo E1 and E2. Comparison with a previous Ubc9-E3 complex structure demonstrates overlap between Uba2 and E3 binding sites on Ubc9, indicating that loading with Sumo and E3-catalyzed transfer to substrates are strictly separate steps. The results suggest mechanisms establishing specificity and order in Sumo conjugation cascades.

Wang, Jing; Taherbhoy, Asad M.; Hunt, Harold W.; Seyedin, Steven N.; Miller, David W.; Miller, Darcie J.; Huang, Danny T.; Schulman, Brenda A. (SJCH)

2012-04-30T23:59:59.000Z

308

Revisiting Insights from Three Mile Island Unit 2 Postaccident Examinations and Evaluations in View of the Fukushima Daiichi Accident  

SciTech Connect (OSTI)

The Three Mile Island Unit 2 (TMI-2) accident, which occurred on March 28, 1979, led industry and regulators to enhance strategies to protect against severe accidents in commercial nuclear power plants. Investigations in the years after the accident concluded that at least 45% of the core had melted and that nearly 19 tonnes of the core material had relocated to the lower head. Postaccident examinations indicate that about half of that material formed a solid layer near the lower head and above it was a layer of fragmented rubble. As discussed in this paper, numerous insights related to pressurized water reactor accident progression were gained from postaccident evaluations of debris, reactor pressure vessel (RPV) specimens, and nozzles taken from the RPV. In addition, information gleaned from TMI-2 specimen evaluations and available data from plant instrumentation were used to improve severe accident simulation models that form the technical basis for reactor safety evaluations. Finally, the TMI-2 accident led the nuclear community to dedicate considerable effort toward understanding severe accident phenomenology as well as the potential for containment failure. Because available data suggest that significant amounts of fuel heated to temperatures near melting, the events at Fukushima Daiichi Units 1, 2, and 3 offer an unexpected opportunity to gain similar understanding about boiling water reactor accident progression. To increase the international benefit from such an endeavor, we recommend that an international effort be initiated to (a) prioritize data needs; (b) identify techniques, samples, and sample evaluations needed to address each information need; and (c) help finance acquisition of the required data and conduct of the analyses.

Joy Rempe; Mitchell Farmer; Michael Corradini; Larry Ott; Randall Gauntt; Dana Powers

2012-11-01T23:59:59.000Z

309

Serpentinization reaction pathways: implications for modeling approach  

SciTech Connect (OSTI)

Experimental seawater-peridotite reaction pathways to form serpentinites at 300/sup 0/C, 500 bars, can be accurately modeled using the EQ3/6 codes in conjunction with thermodynamic and kinetic data from the literature and unpublished compilations. These models provide both confirmation of experimental interpretations and more detailed insight into hydrothermal reaction processes within the oceanic crust. The accuracy of these models depends on careful evaluation of the aqueous speciation model, use of mineral compositions that closely reproduce compositions in the experiments, and definition of realistic reactive components in terms of composition, thermodynamic data, and reaction rates.

Janecky, D.R.

1986-01-01T23:59:59.000Z

310

Global Workspace Theory, its LIDA Model and the Underlying Neuroscience Stan Franklin, Steve Strain, Javier Snaider, Ryan McCall, Usef Faghihi  

E-Print Network [OSTI]

from animal (including human) cognition. Such architectures should faithfully model its insights from what is known from animal (including human) cognition be tested against empirical studies of humans and other animals. Such studies

Memphis, University of

311

Permeability decrease in argillaceous sandstone; experiments and modelling  

SciTech Connect (OSTI)

Core flooding experiments on argillaceous sandstone are carried out showing that for high injection flow rates permeability reduction occurs. The decrease of permeability is a consequence of the migration of insitu particles. Two models are used to simulate the observed phenomena. The so-called network model is able to give insight in the physics behind the particle migration. The other model based on mass balance and constitutive laws is used for quantitative and qualitative comparison with the experiments.

Egberts, Paul; van Soest, Lennard; Vernoux, Jean-Francois

1996-01-24T23:59:59.000Z

312

Application of molecular simulations: Insight into liquid bridging and jetting phenomena  

E-Print Network [OSTI]

Molecular dynamics simulations have been performed on pure liquid water, aqueous solutions of sodium chloride, and polymer solutions exposed to a strong external electric field with the goal to gain molecular insight into the structural response to the field. Several simulation methodologies have been used to elucidate the molecular mechanisms of the processes leading to the formation of liquid bridges and jets (in the production of nanofibers). It is shown that in the established nanoscale structures, the molecules form a chain with their dipole moments oriented parallel to the applied field throughout the entire sample volume. The presence of ions may disturb this structure leading to its ultimate disintegration into droplets; the concentration dependence of the threshold field required to stabilize a liquid column has been determined. Conformational changes of the polymer in the jetting process have also been observed.

I. Nezbeda; J. Jirsák; F. Mou?ka; W. R. Smith

2015-04-03T23:59:59.000Z

313

Mobilizing Public Markets to Finance Renewable Energy Projects: Insights from Expert Stakeholders  

SciTech Connect (OSTI)

Financing renewable energy projects in the United States can be a complex process. Most equity investment in new renewable power production facilities is supported by tax credits and accelerated depreciation benefits, and is constrained by the pool of potential investors that can fully use these tax benefits and are willing to engage in complex financial structures. For debt financing, non-government lending has largely been provided by foreign banks that may be under future lending constraints due to economic and regulatory conditions. To discuss renewable energy financing challenges and to identify new sources of capital to the U.S. market, two roundtable discussions were held with renewable energy and financing experts in April 2012. This report summarizes the key messages of those discussions and is designed to provide insights to the U.S. market and inform the international conversation on renewable energy financing innovations.

Schwabe, P.; Mendelsohn, M.; Mormann, F.; Arent, D. J.

2012-06-01T23:59:59.000Z

314

2010 Honda Insight VIN 0141 Hybrid Electric Vehicle Battery Test Results  

SciTech Connect (OSTI)

The U.S. Department of Energy Advanced Vehicle Testing Activity Program consists of vehicle, battery, and infrastructure testing on advanced technology related to transportation. The activity includes tests on hybrid electric vehicles (HEVs), including testing the HEV batteries when both the vehicles and batteries are new and at the conclusion of 160,000 miles of on road fleet testing. This report documents battery testing performed for the 2010 Honda Insight HEV (VIN: JHMZE2H78AS010141). Battery testing was performed by the Electric Transportation Engineering Corporation dba ECOtality North America. The Idaho National Laboratory and ECOtality North America collaborate on the Advanced Vehicle Testing Activity for the Vehicle Technologies Program of the U.S. Department of Energy.

Tyler Gray

2013-01-01T23:59:59.000Z

315

2010 Honda Insight VIN 1748 Hybrid Electric Vehicle Battery Test Results  

SciTech Connect (OSTI)

The U.S. Department of Energy Advanced Vehicle Testing Activity Program consists of vehicle, battery, and infrastructure testing on advanced technology related to transportation. The activity includes tests on hybrid electric vehicles (HEVs), including testing the HEV batteries when both the vehicles and batteries are new and at the conclusion of 160,000 miles of on road fleet testing. This report documents battery testing performed for the 2010 Honda Insight HEV (VIN: JHMZE2H59AS011748). Battery testing was performed by the Electric Transportation Engineering Corporation dba ECOtality North America. The Idaho National Laboratory and ECOtality North America collaborate on the Advanced Vehicle Testing Activity for the Vehicle Technologies Program of the U.S. Department of Energy.

Tyler Gray; Matthew Shirk

2013-01-01T23:59:59.000Z

316

Insights into formation of semiconductor nanocrystals : from first principles calculations to kinetic models of nucleation and growth  

E-Print Network [OSTI]

Over the past decade the synthesis of colloidal semiconductor nanocrystals of diverse shapes and sizes has sparked tremendous interest in both the industrial and scientific communities. Much of the work thus far has been ...

Rempel, Jane Yevgeniya

2008-01-01T23:59:59.000Z

317

Simulating boreal forest carbon dynamics after stand-replacing fire disturbance: insights from a global process-based vegetation model  

E-Print Network [OSTI]

CLIMVAR GPPCAL-CMCD CNT-CMCD ORC-STD FM-BF-NOSNAG AverageEC obs. period CMCD HHCD for only EC obs. period CMCD ORC-STD ORC-FM-NOSNAG Standard ORCHIDEE with fire and without

2013-01-01T23:59:59.000Z

318

Micro-analysis of infant looking in a naturalistic social setting: insights from biologically based models of attention  

E-Print Network [OSTI]

Clifford, J. , Jr. , & Williston, J. (1993). The effects oftheory (Clifford & Williston, 1993; Solokov, 1963), which

de Barbaro, Kaya; Chiba, Andrea; Deák, Gedeon O

2011-01-01T23:59:59.000Z

319

Using simulation to model and understand group learning Maartje Spoelstra  

E-Print Network [OSTI]

Using simulation to model and understand group learning Maartje Spoelstra Dept of Computer Science for agents acting in a simulated learning environment. Varying parameter values can change the learning in a simulation that we can use to gain insights into the design of effective learning environments. Here, we

Sklar, Elizabeth

320

Chemical Kinetic Modeling of Advanced Transportation Fuels  

SciTech Connect (OSTI)

Development of detailed chemical kinetic models for advanced petroleum-based and nonpetroleum based fuels is a difficult challenge because of the hundreds to thousands of different components in these fuels and because some of these fuels contain components that have not been considered in the past. It is important to develop detailed chemical kinetic models for these fuels since the models can be put into engine simulation codes used for optimizing engine design for maximum efficiency and minimal pollutant emissions. For example, these chemistry-enabled engine codes can be used to optimize combustion chamber shape and fuel injection timing. They also allow insight into how the composition of advanced petroleum-based and non-petroleum based fuels affect engine performance characteristics. Additionally, chemical kinetic models can be used separately to interpret important in-cylinder experimental data and gain insight into advanced engine combustion processes such as HCCI and lean burn engines. The objectives are: (1) Develop detailed chemical kinetic reaction models for components of advanced petroleum-based and non-petroleum based fuels. These fuels models include components from vegetable-oil-derived biodiesel, oil-sand derived fuel, alcohol fuels and other advanced bio-based and alternative fuels. (2) Develop detailed chemical kinetic reaction models for mixtures of non-petroleum and petroleum-based components to represent real fuels and lead to efficient reduced combustion models needed for engine modeling codes. (3) Characterize the role of fuel composition on efficiency and pollutant emissions from practical automotive engines.

PItz, W J; Westbrook, C K; Herbinet, O

2009-01-20T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Computational fire modeling for aircraft fire research  

SciTech Connect (OSTI)

This report summarizes work performed by Sandia National Laboratories for the Federal Aviation Administration. The technical issues involved in fire modeling for aircraft fire research are identified, as well as computational fire tools for addressing those issues, and the research which is needed to advance those tools in order to address long-range needs. Fire field models are briefly reviewed, and the VULCAN model is selected for further evaluation. Calculations are performed with VULCAN to demonstrate its applicability to aircraft fire problems, and also to gain insight into the complex problem of fires involving aircraft. Simulations are conducted to investigate the influence of fire on an aircraft in a cross-wind. The interaction of the fuselage, wind, fire, and ground plane is investigated. Calculations are also performed utilizing a large eddy simulation (LES) capability to describe the large- scale turbulence instead of the more common k-{epsilon} turbulence model. Additional simulations are performed to investigate the static pressure and velocity distributions around a fuselage in a cross-wind, with and without fire. The results of these simulations provide qualitative insight into the complex interaction of a fuselage, fire, wind, and ground plane. Reasonable quantitative agreement is obtained in the few cases for which data or other modeling results exist Finally, VULCAN is used to quantify the impact of simplifying assumptions inherent in a risk assessment compatible fire model developed for open pool fire environments. The assumptions are seen to be of minor importance for the particular problem analyzed. This work demonstrates the utility of using a fire field model for assessing the limitations of simplified fire models. In conclusion, the application of computational fire modeling tools herein provides both qualitative and quantitative insights into the complex problem of aircraft in fires.

Nicolette, V.F.

1996-11-01T23:59:59.000Z

322

The California rangeland decisionmaking survey provides important insights into defining sustainability on working landscapes. First, there is considerable heterogeneity  

E-Print Network [OSTI]

practices supporting multiple ecosystem service goals. Ranchers and rangeland managers already valueChampaign Sustaining working rangelands: Insights from rancher decision-making surveys and interviews Overview Methods systems in which society demands provisioning of both goods (e.g., livestock, forage production

Tate, Kenneth

323

Folk Labeling: Insights on Improving Usability and Saving Energy Gleaned from After-Market Graffiti on Common Appliances  

E-Print Network [OSTI]

Folk Labeling: Insights on Improving Usability and Saving Energy Gleaned from After-Market Graffiti for Energy and Environment Jessica Granderson, Gari Kloss and Alan Meier, Lawrence Berkeley National users often indicates problematic usability, which can affect the device's energy consumption

Aragon, Cecilia R.

324

Soil animal responses to moisture availability are largely scale, not ecosystem dependent: insight from a cross-site  

E-Print Network [OSTI]

Soil animal responses to moisture availability are largely scale, not ecosystem dependent: insight Cruces, NM 88012, USA, 4 USDA ARS Grassland Soil and Water Research Laboratory, Temple, TX 76502, USA, 5 Abstract Climate change will result in reduced soil water availability in much of the world either due

Wall, Diana

325

One-Dimensional Barrier-Preserving Free-Energy Projections of a -sheet Miniprotein: New Insights into the Folding Process  

E-Print Network [OSTI]

One-Dimensional Barrier-Preserving Free-Energy Projections of a -sheet Miniprotein: New Insights simulations for a total of 20 µs. The resulting one-dimensional free-energy profiles (FEPs) provide a detailed description of the free-energy basins and barriers for the folding reaction. The similarity of the FEPs

Caflisch, Amedeo

326

Fluid-mobile element budgets in serpentinized oceanic lithospheric mantle: Insights from B, As, Li, Pb, PGEs and Os isotopes  

E-Print Network [OSTI]

Fluid-mobile element budgets in serpentinized oceanic lithospheric mantle: Insights from B, As, Li Serpentinized oceanic lithosphere may be an important source for boron and other fluid-mobile elements to dictate serpentinization along deep faults and fractures. To address how fluid- mobile element enrichments

Lee, Cin-Ty Aeolus

327

Novel Insights into Lossless AC and DC Power Flow Florian Dorfler, Student Member, IEEE, and Francesco Bullo, Fellow, IEEE  

E-Print Network [OSTI]

1 Novel Insights into Lossless AC and DC Power Flow Florian D¨orfler, Student Member, IEEE work supported by NSF grant CPS- 1135819. Florian D¨orfler and Francesco Bullo are with the Center 93106. Email: {dorfler,bullo}@engineering.ucsb.edu approximation only near an operating point with small

Bullo, Francesco

328

Insight into the Molecular Arrangement of High-Density Polyethylene Polymer Chains in Blends of Polystyrene/High-  

E-Print Network [OSTI]

Insight into the Molecular Arrangement of High-Density Polyethylene Polymer Chains in Blends of Polystyrene/High- Density Polyethylene from Differential Scanning Calorimetry and Raman Techniques JAYANT/high-density polyethylene (PS/HDPE) blends were synthe- sized by melt blending in a single screw extruder. Co

329

*Deborah E. Eason, Garrett Ito, John M. Sinton Insights into melt and chemical transport rates in the mantle  

E-Print Network [OSTI]

*Deborah E. Eason, Garrett Ito, John M. Sinton Insights into melt and chemical transport rates Greenland Ice-Core Project (NGRIP) Members (2004) Nature Sinton, J., Grönvold, K., Sæmundsson, K. (2005) G3. These data supplement existing fini- and post-glacial data [Sinton et al., 2005] to form a detailed eruptive

Geist, Dennis

330

Controls on the genesis of hydrothermal cobalt mineralization: insights from the mineralogy and geochemistry of the Bou Azzer deposits, Morocco  

E-Print Network [OSTI]

Controls on the genesis of hydrothermal cobalt mineralization: insights from the mineralogy,Ni,Fe) arsenides and sulpharsenides, with accessory sulphides and gold in a quartz-carbonate gangue. The ore-Ni-Fe, avec des quantités mineures de sulphures et de l'or dans une gangue de quartz- carbonate. Les minerais

331

The Behaviour of Base Metals in Arc-Type Magmatic-Hydrothermal Systems Insights from Merapi Volcano,  

E-Print Network [OSTI]

zone stratovolcanoes provide important windows on the magmatic-hydrothermal processes at playThe Behaviour of Base Metals in Arc-Type Magmatic- Hydrothermal Systems ­ Insights from Merapi systems include a shallow magmatic reservoir (the porphyry stock), an overlying hydrothermal cell, its

Barnes, Sarah-Jane

332

Digging into exploration processes within established firms: Insights from two entities dedicated to enhancing radical innovation to support existing  

E-Print Network [OSTI]

1 Digging into exploration processes within established firms: Insights from two entities dedicated to understand the specificities of exploration processes. In this paper we propose to dig into the exploration.midler@polytechnique.edu ABSTRACT Since the seminal work of J. March (1991), balancing exploration and exploitation activities

Paris-Sud XI, Université de

333

Penetration of UV-visible solar radiation in the global oceans: Insights from ocean color remote sensing  

E-Print Network [OSTI]

Penetration of UV-visible solar radiation in the global oceans: Insights from ocean color remote 2013. [1] Penetration of solar radiation in the ocean is determined by the attenuation coefficient (Kd. Lewis, R. Arnone, and R. Brewin (2013), Penetration of UV-visible solar radiation in the global oceans

334

Massive first-principles simulation provides insight into flame anchoring in a hydrogen-rich jet in cross-flow.  

E-Print Network [OSTI]

in cross-flow. When gas turbine designers want to use gasified biomass for stationary power generation is far more reactive than the methane that is the traditional gas turbine fuel. This reactivity leads Science Simulations Provide New Insights to Aid Hydrogen Gas Turbine Development NREL Highlights SCIENCE

335

Risk-based Surveillance of Avian Influenza in Switzerland: Insights into Poultry Farm Determinants and Contact Networks  

E-Print Network [OSTI]

Risk-based Surveillance of Avian Influenza in Switzerland: Insights into Poultry Farm Determinants Zusammenfassung xxiv Acknowledgements xxix 1 Introduction 1 1.1 Avian influenza surveillance and poultry influenza 8 1.1.3 Poultry production 11 1.2 Epidemiology of infectious diseases: tasks, tools and techniques

Amrhein, Valentin

336

Mineralogical and chemical characterization of lunar highland soils: Insights into the space weathering of soils on airless bodies  

E-Print Network [OSTI]

Mineralogical and chemical characterization of lunar highland soils: Insights into the space soils, with respect to their mineralogical and chemical makeup. It is these lunar soils that are being, A. Patchen, D.-H. S. Taylor, R. V. Morris, L. P. Keller, and D. S. McKay (2010), Mineralogical

Perfect, Ed

337

Simulation Model Cruz, MacGregor Smith, & Medeiros An M/G/C/C State Dependent Network  

E-Print Network [OSTI]

Simulation Model Cruz, MacGregor Smith, & Medeiros An M/G/C/C State Dependent Network Simulation@est.ufmg.br August 15, 2003 Abstract -- A discrete-event digital simulation model is developed to study traffic flows are presented showing that the simulation model is an effective and insightful tool to validate analytical ex

Cruz, Frederico

338

Wild Fire Computer Model Helps Firefighters  

ScienceCinema (OSTI)

A high-tech computer model called HIGRAD/FIRETEC, the cornerstone of a collaborative effort between U.S. Forest Service Rocky Mountain Research Station and Los Alamos National Laboratory, provides insights that are essential for front-line fire fighters. The science team is looking into levels of bark beetle-induced conditions that lead to drastic changes in fire behavior and how variable or erratic the behavior is likely to be.

Canfield, Jesse

2014-06-02T23:59:59.000Z

339

Abstract-Some insight as to the application of modern electric drive expertise to micro-scale electric machines is given.  

E-Print Network [OSTI]

Abstract- Some insight as to the application of modern electric drive expertise to micro-scale electric machines is given. The discussion is supported by a summary of current micromotor technology) that considerable insight from drives experts can be offered in either case. I. INTRODUCTION Some 100 years

Chapman, Patrick

340

Thermochemical Insight into the Reduction of CO to CH3OH with [Re(CO)]+ and [Mn(CO)]+ Complexes  

SciTech Connect (OSTI)

To gain insight into thermodynamic barriers for reduction of CO into CH3OH, free energies for reduction of [CpRe(PPh3)(NO)(CO)]+ into CpRe(PPh3)(NO)(CH2OH) have been determined from experimental measurements. Using model complexes, the free energies for the transfer of H+, H–, and e– have been determined. A pKa of 10.6 was estimated for [CpRe(PPh3)(NO)(CHOH)]+ by measuring the pKa for the analogous [CpRe(PPh3)(NO)(CMeOH)]+. The hydride donor ability (?G°H–) of CpRe(PPh3)(NO)(CH2OH) was estimated to be 58.0 kcal mol–1, based on calorimetry measurements of the hydride transfer reaction between CpRe(PPh3)(NO)(CHO) and [CpRe(PPh3)(NO)(CHOMe)]+ to generate the methylated analog, CpRe(PPh3)(NO)(CH2OMe). Cyclic voltammograms recorded on CpRe(PPh3)(NO)(CMeO), CpRe(PPh3)(NO)(CH2OMe), and [CpRe(PPh3)(NO)(CHOMe)]+ displayed either a quasireversible oxidation (neutral species) or reduction (cationic species). These potentials were used as estimates for the oxidation of CpRe(PPh3)(NO)(CHO) or CpRe(PPh3)(NO)(CH2OH), or the reduction of [CpRe(PPh3)(NO)(CHOH)]+. Combination of the thermodynamic data permits construction of three-dimensional free energy landscapes under varying conditions of pH and PH2. The free energy for H2 addition (?G°H2) to [CpRe(PPh3)(NO)(CO)]+ (+15 kcal mol–1) was identified as the most significant thermodynamic impediment for the reduction of CO. DFT computations indicate that ?G°H2 varies by only 4.3 kcal mol–1 across a series of [CpXRe(L)(NO)(CO)]+, while the experimental ?G°H– values for the analogous series of CpRe(PPh3)(NO)(CHO) varies by 12.9 kcal mol–1. The small range of ?G°H2 values is attributed to a minimal change in the C–O bond polarization upon modification of the ancillary ligands, as determined from the computed atomic charges. This work was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. Pacific Northwest National Laboratory (PNNL) is a multiprogram national laboratory operated for DOE by Battelle.

Wiedner, Eric S.; Appel, Aaron M.

2014-05-22T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Insights into Stress Corrosion Cracking Mechanisms from High-Resolution Measurements of Crack-Tip Structures and Compositions  

SciTech Connect (OSTI)

The fundamental basis for mechanistic understanding and modeling of SCC remains in question for many systems. Specific mechanisms controlling SCC can vary with changes in alloy characteristics, applied/residual stress or environmental conditions. The local crack electrochemistry, crack-tip mechanics and material metallurgy are the main factors controlling crack growth. These localized properties are difficult or impossible to measure in active cracks. Nevertheless, it is essential to quantitatively interrogate these crack-tip conditions if mechanistic understanding is to be obtained. A major recent advance has been the ability to investigate SCC cracks and crack tips using high-resolution ATEM techniques. ATEM enables the characterization of SCC cracks including trapped tip solution chemistries, corrosion product/film compositions and structures, and elemental composition gradients and defect microstructures along the crack walls and at the crack tip. A wide variety of methods for imaging and analyses at resolutions down to the atomic level can be used to examine the crack and corrosion film characteristics. Surface films and reaction layers have been examined by cross-sectional TEM techniques, but little work had been conducted on environmentally induced internal cracks until that of Lewis and co-workers [1-3] and the current authors [4-17]. This capability combined with modern ATEM techniques has enabled exciting new insights into corrosion processes occurring at buried interfaces and is being used to identify mechanisms controlling IGSCC in boiling water reactor (BWR) and pressurized water reactor (PWR) components. The objective of this paper is to summarize certain results focused on IGSCC of Fe- base and Ni-base stainless alloys in high-temperature water environments. Representative crack-tip examples will be shown to illustrate specific aspects that are characteristic of SCC in the material/environment combinations. Differences and similarities in crack-tip structures- chemistries will be highlighted comparing Fe-base 316/304SS to Ni-base alloy 600/182 and for tests in oxidizing versus hydrogenated water environments.

Bruemmer, Stephen M.; Thomas, Larry E.

2010-04-05T23:59:59.000Z

342

A Cognitive Dysfunction Modeling Framework James K. Peterson (petersj@clemson.edu)  

E-Print Network [OSTI]

A Cognitive Dysfunction Modeling Framework James K. Peterson (petersj@clemson.edu) Department-0975 USA October 17, 2013 Abstract We are interested in developing a small scale model of cognitive dysfunction which provides insight into how cognitive function arises and how cognitive dysfunction might

Peterson, James K

343

Project Profile: Predictive Physico-Chemical Modeling of Intrinsic Degradation Mechanisms for Advanced Reflector Materials  

Broader source: Energy.gov [DOE]

NREL, under the Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) Program will be developing a physics-based computational degradation model to assess the kinetic oxidation rates; realistic model light attenuation and transport; and multi-layer treatment with variable properties Simulation based experimental design.

344

Biofuel-Food Market Interactions:A Review of Modeling Approaches and Findings  

SciTech Connect (OSTI)

The interaction between biofuels and food markets remains a policy issue for a number of reasons. There is a continuing need to understand the role of biofuels in the recent spikes in global food prices. Also, there is an ongoing discussion of changes to biofuel policy as a means to cope with severe weather-induced crop losses. Lastly, there are potential interactions between food markets and advanced biofuels, although most of the latter are expected to be produced from non-food feedstocks. This study reviews the existing literature on the food market impacts of biofuels. Findings suggest that initial conclusions attributing most of the spike in global food prices between 2005 and 2008 to biofuels have been revised. Instead, a multitude of factors, in addition to biofuels, converged during the period. Quantitative estimates of the impacts of biofuels on food markets vary significantly due to differences in modeling approaches, geographical scope, and assumptions about a number of crucial factors. In addition, many studies do not adequately account for the effects of macroeconomic changes, adverse weather conditions and direct market interventions during the recent food price spikes when evaluating the role of biofuels.

Oladosu, Gbadebo A [ORNL; Msangi, Siwa [International Food and Policy Research Institute (IFPRI)

2013-01-01T23:59:59.000Z

345

Consistent nonlinear dynamics: identifying model inadequacy  

E-Print Network [OSTI]

Empirical modelling often aims for the simplest model consistent with the data. A new technique is presented which quantifies the consistency of the model dynamics as a function of location in state space. As is well-known, traditional statistics of nonlinear models like root-mean-square (RMS) forecast error can prove misleading. Testing consistency is shown to overcome some of the deficiencies of RMS error, both within the perfect model scenario and when applied to data from several physical systems using previously published models. In particular, testing for consistent nonlinear dynamics provides insight towards (i) identifying when a delay reconstruction fails to be an embedding, (ii) allowing state dependent model selection and (iii) optimising local neighbourhood size. It also provides a more relevant (state dependent) threshold for identifying false nearest neighbours.

Patrick E. McSharry; Leonard A. Smith

2004-03-09T23:59:59.000Z

346

Insights From Laboratory Experiments On Simulated Faults With Application To Fracture Evolution In Geothermal Systems  

SciTech Connect (OSTI)

Laboratory experiments provide a wealth of information related to mechanics of fracture initiation, fracture propagation processes, factors influencing fault strength, and spatio-temporal evolution of fracture properties. Much of the existing literature reports on laboratory studies involving a coupling of thermal, hydraulic, mechanical, and/or chemical processes. As these processes operate within subsurface environments exploited for their energy resource, laboratory results provide insights into factors influencing the mechanical and hydraulic properties of geothermal systems. I report on laboratory observations of strength and fluid transport properties during deformation of simulated faults. The results show systematic trends that vary with stress state, deformation rate, thermal conditions, fluid content, and rock composition. When related to geophysical and geologic measurements obtained from engineered geothermal systems (e.g. microseismicity, wellbore studies, tracer analysis), laboratory results provide a means by which the evolving thermal reservoir can be interpreted in terms of physico-chemical processes. For example, estimates of energy release and microearthquake locations from seismic moment tensor analysis can be related to strength variations observed from friction experiments. Such correlations between laboratory and field data allow for better interpretations about the evolving mechanical and fluid transport properties in the geothermal reservoir – ultimately leading to improvements in managing the resource.

Stephen L. Karner, Ph.D

2006-06-01T23:59:59.000Z

347

New insight into the Solar System's transition disk phase provided by the unusual meteorite Isheyevo  

E-Print Network [OSTI]

Many aspects of planet formation are controlled by the amount of gas remaining in the natal protoplanetary disk (PPDs). Infrared observations show that PPDs undergo a transition stage at several Myr, during which gas densities are reduced. Our Solar System would have experienced such a stage. However, there is currently no data that provides insight into this crucial time in our PPD's evolution. We show that the Isheyevo meteorite contains the first definitive evidence for a transition disk stage in our Solar System. Isheyevo belongs to a class of metal-rich meteorites whose components have been dated at almost 5 Myr after the first solids in the Solar System, and exhibits unique sedimentary layers that imply formation through gentle sedimentation. We show that such layering can occur via gentle sweep-up of material found in the impact plume resulting from the collision of two planetesimals. Such sweep-up requires gas densities consistent with observed transition disks. As such, Isheyevo presents the first ev...

Morris, Melissa A; Knauth, L Paul

2014-01-01T23:59:59.000Z

348

Structural insight into nucleotide recognition by human death-associated protein kinase  

SciTech Connect (OSTI)

Death-associated protein kinase (DAPK) is a member of the Ca{sup 2+}/calmodulin-regulated family of serine/threonine protein kinases. The role of the kinase activity of DAPK in eukaryotic cell apoptosis and the ability of bioavailable DAPK inhibitors to rescue neuronal death after brain injury have made it a drug-discovery target for neurodegenerative disorders. In order to understand the recognition of nucleotides by DAPK and to gain insight into DAPK catalysis, the crystal structure of human DAPK was solved in complex with ADP and Mg{sup 2+} at 1.85 {angstrom} resolution. ADP is a product of the kinase reaction and product release is considered to be the rate-limiting step of protein kinase catalytic cycles. The structure of DAPK-ADP-Mg{sup 2+} was compared with a newly determined DAPK-AMP-PNP-Mg{sup 2+} structure and the previously determined apo DAPK structure (PDB code 1 jks). The comparison shows that nucleotide-induced changes are localized to the glycine-rich loop region of DAPK.

McNamara, Laurie K.; Watterson, D.M.; Brunzelle, Joseph S.; (NWU)

2009-06-01T23:59:59.000Z

349

Section 1603 Treasury Grant Expiration: Industry Insight on Financing and Market Implications  

SciTech Connect (OSTI)

In the wake of the 2008-2009 financial crises, tax equity investors largely withdrew from the market, resulting in stagnation of project development. In response, Congress established the Treasury grant program pursuant to Section 1603 of the American Recovery and Reinvestment Act (..Section..1603 Program) to offer a cash payment in lieu of a production and investment tax credit. This study addresses the likely project financing and market impacts from the expiration of the ..Section..1603 Program. The authors assembled an array of insights offered by financial executives active in the renewable energy (RE) market during conference panel discussions and in presentations, direct interviews, and email correspondences. This analysis found that the ..Section..1603 Program alleviated the need to monetize the tax credit incentives through specialized investors, helped lower the transaction and financing costs associated with renewable electricity projects, and generally supported an extensive build-out of renewable power generation capacity. With the expiration of the ..Section..1603 Program, smaller or less-established renewable power developers will have more difficulty attracting needed financial capital and completing their projects, development of projects relying on newer or 'innovative' technologies will likely slow as traditional tax equity investors are known to be highly averse to technology risk in the projects they fund, and, finally, projects relying on tax equity may be more expensive to develop due to higher transaction costs and potentially higher yields required to attract tax equity.

Mendelsohn, M.; Harper, J.

2012-06-01T23:59:59.000Z

350

Transcriptome Analysis of Manganese-deficient Chlamydomonas reinhardtii Provides Insight on the Chlorophyll Biosynthesis Pathway  

SciTech Connect (OSTI)

The biosynthesis of chlorophyll and other tetrapyrroles is a vital but poorly understood process. Recent genomic advances with the unicellular green algae Chlamydomonas reinhardtii have created opportunity to more closely examine the mechanisms of the chlorophyll biosynthesis pathway via transcriptome analysis. Manganese is a nutrient of interest for complex reactions because of its multiple stable oxidation states and role in molecular oxygen coordination. C. reinhardtii was cultured in Manganese-deplete Tris-acetate-phosphate (TAP) media for 24 hours and used to create cDNA libraries for sequencing using Illumina TruSeq technology. Transcriptome analysis provided intriguing insight on possible regulatory mechanisms in the pathway. Evidence supports similarities of GTR (Glutamyl-tRNA synthase) to its Chlorella vulgaris homolog in terms of Mn requirements. Data was also suggestive of Mn-related compensatory up-regulation for pathway proteins CHLH1 (Manganese Chelatase), GUN4 (Magnesium chelatase activating protein), and POR1 (Light-dependent protochlorophyllide reductase). Intriguingly, data suggests possible reciprocal expression of oxygen dependent CPX1 (coproporphyrinogen III oxidase) and oxygen independent CPX2. Further analysis using RT-PCR could provide compelling evidence for several novel regulatory mechanisms in the chlorophyll biosynthesis pathway.

Lockhart, Ainsley; Zvenigorodsky, Natasha; Pedraza, Mary Ann; Lindquist, Erika

2011-08-11T23:59:59.000Z

351

Computational insights of water droplet transport on graphene sheet with chemical density  

SciTech Connect (OSTI)

Surface gradient has been emerging as an intriguing technique for nanoscale particle manipulation and transportation. Owing to its outstanding and stable chemical properties, graphene with covalently bonded chemical groups represents extraordinary potential for the investigation of nanoscale transport in the area of physics and biology. Here, we employ molecular dynamics simulations to investigate the fundamental mechanism of utilizing a chemical density on a graphene sheet to control water droplet motions on it. Simulation results have demonstrated that the binding energy difference among distinct segment of graphene in terms of interaction between the covalently bonded oxygen atoms on graphene and the water molecules provides a fundamental driving force to transport the water droplet across the graphene sheet. Also, the velocity of the water droplet has showed a strong dependence on the relative concentration of oxygen atoms between successive segments. Furthermore, a multi-direction channel provides insights to guide the transportation of objects towards a targeted position, separating the mixtures with a system of specific chemical functionalization. Our findings shed illuminating lights on the surface gradient method and therefore provide a feasible way to control nanoscale motion on the surface and mimic the channelless microfluidics.

Zhang, Liuyang; Wang, Xianqiao, E-mail: xqwang@uga.edu [College of Engineering and NanoSEC, University of Georgia, Athens, Georgia 30602 (United States)

2014-05-21T23:59:59.000Z

352

World gold prices and stock returns in China: insights for hedging and diversification strategies  

E-Print Network [OSTI]

make use of several multivariate GARCH models (CCC-, DCC-, BEKK-, diagonal BEKK-, and VAR-GARCH exposures can be effectively hedged in portfolios of stocks over time. Finally, we show that the VAR-GARCH model performs better than the other multivariate GARCH models. Keywords: Stock markets, gold prices

Paris-Sud XI, Université de

353

Structural and mechanistic insights into Mcm2-7 double-hexamer assembly and function  

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

Eukaryotic cells license each DNA replication origin during G1 phase by assembling a prereplication complex that contains a Mcm2–7 (minichromosome maintenance proteins 2–7) double hexamer. During S phase, each Mcm2–7 hexamer forms the core of a replicative DNA helicase. However, the mechanisms of origin licensing and helicase activation are poorly understood. The helicase loaders ORC–Cdc6 function to recruit a single Cdt1–Mcm2–7 heptamer to replication origins prior to Cdt1 release and ORC–Cdc6–Mcm2–7 complex formation, but how the second Mcm2–7 hexamer is recruited to promote double-hexamer formation is not well understood. Here, structural evidence for intermediates consisting of an ORC–Cdc6–Mcm2–7 complex and an ORC–Cdc6–Mcm2–7–Mcm2–7 complex are reported, which together provide new insights into DNA licensing. Detailed structural analysis of the loaded Mcm2–7 double-hexamer complex demonstrates that the two hexamers are interlocked and misaligned along the DNA axis and lack ATP hydrolysis activity that is essential for DNA helicase activity. Moreover, we show that the head-to-head juxtaposition of the Mcm2–7 double hexamer generates a new protein interaction surface that creates a multisubunit-binding site for an S-phase protein kinase that is known to activate DNA replication. The data suggest how the double hexamer is assembled and how helicase activity is regulated during DNA licensing, with implications for cell cycle control of DNA replication and genome stability.

Sun, Jingchuan [Brookhaven National Laboratory (BNL), Upton, NY (United States); Li, Huilin [Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States); Fernandez-Cid, Alejandra [Imperial College Faculty of Medicine, London (United Kingdom). DNA Replication Group; Riera, Alberto [Imperial College Faculty of Medicine, London (United Kingdom). MRC Clinical Sciences Centre; Tognetti, Sivia [Imperial College Faculty of Medicine, London (United Kingdom). MRC Clinical Sciences Centre; Yuan, Zuanning [Stony Brook Univ., Stony Brook, NY (United States); Stillman, Bruce [Cold Spring Harbor Lab., NY (United States); Speck, Christian [Imperial College Faculty of Medicine, London (United Kingdom). DNA Replication Group

2014-10-15T23:59:59.000Z

354

Insights into Ubiquitin Transfer Cascades from a Structure of a UbcH5B[is equivalent to]Ubiquitin-HECT[superscript NEDD4L] Complex  

SciTech Connect (OSTI)

In E1-E2-E3 ubiquitin (Ub) conjugation cascades, the E2 first forms a transient E2 {approx} Ub covalent complex and then interacts with an E3 for Ub transfer. For cascades involving E3s in the HECT class, Ub is transferred from an associated E2 to the acceptor cysteine in the HECT domain C lobe. To gain insights into this process, we determined the crystal structure of a complex between the HECT domain of NEDD4L and the E2 UbcH5B bearing a covalently linked Ub at its active site (UbcH5B {approx} Ub). Noncovalent interactions between UbcH5B and the HECT N lobe and between Ub and the HECT domain C lobe lead to an overall compact structure, with the Ub C terminus sandwiched between UbcH5B and HECT domain active sites. The structure suggests a model for E2-to-HECT Ub transfer, in which interactions between a donor Ub and an acceptor domain constrain upstream and downstream enzymes for conjugation.

Kamadurai, Hari B.; Souphron, Judith; Scott, Daniel C.; Duda, David M.; Miller, Darcie J.; Stringer, Daniel; Piper, Robert C.; Schulman, Brenda A.; (SJCH)

2010-02-23T23:59:59.000Z

355

Insights into genes involved in electricity generation in Geobacter sulfurreducens via whole genome microarray analysis of the OmcF-de cient mutant  

E-Print Network [OSTI]

Insights into genes involved in electricity generation in Geobacter sulfurreducens via whole genome Keywords: Geobacter sulfurreducens Cytochrome Microbial fuel cells Microarray Geobacter sulfurreducens effectively produces electricity in microbial fuel cells by oxidizing acetate with an electrode serving

Lovley, Derek

356

Perlecan Domain V Induces VEGF Secretion in Brain Endothelial Cells Through ?5?1 Integrin Dependent Mechanism a Novel Insight in Brain Tissue Recovery Following Ischemia  

E-Print Network [OSTI]

PERLECAN DOMAIN V INDUCES VEGF SECRETION IN BRAIN ENDOTHELIAL CELLS THROUGH ?5?1 INTEGRIN DEPENDENT MECHANISM A NOVEL INSIGHT IN BRAIN TISSUE RECOVERY FOLLOWING ISCHEMIA A Dissertation by DOUGLAS NELSON CLARKE Submitted... ENDOTHELIAL CELLS THROUGH ?5?1 INTEGRIN DEPENDENT MECHANISM A NOVEL INSIGHT IN BRAIN TISSUE RECOVERY FOLLOWING ISCHEMIA A Dissertation by DOUGLAS NELSON CLARKE Submitted to the Office of Graduate Studies of Texas A&M University in partial...

Clarke, Douglas Nelson

2012-02-14T23:59:59.000Z

357

Phylogenetic relationships of flowerpeckers (Aves: Dicaeidae): Novel insights into the evolution of a tropical passerine clade  

E-Print Network [OSTI]

likelihood (ML), as implemented in the software PAUP*, with TBR branch-swapping and 100 random taxon-addition replicates. ModelTest 3.7 (Posada and Crandall, 1998) was used to determine the most appropriate model of sequence evolution via the Akaike...Bayes 3.1.2 (Ronquist and Huelsenbeck 2003). The concatenated dataset was partitioned by gene and codon positions for the nuclear intron and mitochondrial genes, respectively. ModelTest 3.7 (Posada and Crandall, 1998) was again used to establish the best...

Nyá ri, Á rpá d S.; Peterson, A. Townsend; Rice, Nathan H.; Moyle, Robert G.

2009-12-01T23:59:59.000Z

358

Analysis of methods and models for assessing the direct and indirect economic impacts of CO/sub 2/-induced environmental changes in the agricultural sector of the US economy  

SciTech Connect (OSTI)

Alternative methods for quantifying the economic impacts associated with future increases in the ambient concentration of CO/sub 2/ were examined. A literature search was undertaken, both to gain a better understanding of the ways in which CO/sub 2/ buildup could affect crop growth and to identify the different methods available for assessing the impacts of CO/sub 2/-induced environmental changes on crop yields. The second task involved identifying the scope of both the direct and indirect economic impacts that could occur as a result of CO/sub 2/-induced changes in crop yields. The third task then consisted of a comprehensive literature search to identify what types of economic models could be used effectively to assess the kinds of direct and indirect economic impacts that could conceivably occur as a result of CO/sub 2/ buildup. Specific attention was focused upon national and multi-regional agricultural sector models, multi-country agricultural trade models, and macroeconomic models of the US economy. The fourth and final task of this research involved synthesizing the information gathered in the previous tasks into a systematic framework for assessing the direct and indirect economic impacts of CO/sub 2/-induced environmental changes related to agricultural production.

Callaway, J.M.

1982-08-01T23:59:59.000Z

359

Disease in Natural Plant Populations, Communities, and Ecosystems: Insights into Ecological and Evolutionary Processes  

E-Print Network [OSTI]

) included both crop landscapes and patches of unman- aged vegetation in models of soybean rust epidemiology and illus- trated that noncrop plants (such as kudzu, Pueraria montana var. lobata) could play an important role in overwintering survival...

Alexander, Helen M.

2010-05-01T23:59:59.000Z

360

Slip on ridge transform faults : insights from earthquakes and laboratory experiments  

E-Print Network [OSTI]

The relatively simple tectonic environment of mid-ocean ridge transform fault (RTF) seismicity provides a unique opportunity for investigation of earthquake and faulting processes. We develop a scaling model that is complete ...

Boettcher, Margaret S

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" from the National Library of EnergyBeta (NLEBeta).
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361

Insights and Opportunities: Technologies, Policies, and Markets for Clean Energy Solutions (Presentation)  

SciTech Connect (OSTI)

A presentation highlighting how strategic energy analysis can affect technologies, policies, and markets for clean energy solutions. This includes an overview of some of NREL's models and tools as well as results from laboratory analysis.

Arent, D.

2009-11-01T23:59:59.000Z

362

The persistence of oceans on Earth-like planets: insights from the deep-water cycle  

E-Print Network [OSTI]

In this paper we present a series of models for the deep water cycle on super-Earths experiencing plate tectonics. The deep water cycle can be modeled through parameterized convection models coupled with a volatile recycling model. The convection of the silicate mantle is linked to the volatile cycle through the water-dependent viscosity. Important differences in surface water content are found for different parameterizations of convection. Surface oceans are smaller and more persistent for single layer convection, rather than convection by boundary layer instability. Smaller planets have initially larger oceans but also return that water to the mantle more rapidly than larger planets. Super-Earths may therefore be less habitable in their early years than smaller planets, but their habitability (assuming stable surface conditions), will persist much longer.

Schaefer, Laura

2015-01-01T23:59:59.000Z

363

Coral calcification : insights from inorganic experiments and coral responses to environmental variables  

E-Print Network [OSTI]

The mechanisms involved in the formation of coral skeletons are examined using a laboratory model for coral calcification and the growth of living corals under different environmental conditions. Abiogenic aragonite was ...

Holcomb, Michael (Michael C.)

2010-01-01T23:59:59.000Z

364

E-Print Network 3.0 - aminoglycosides molecular insights Sample...  

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

Summary: of the human genodermatoses. Kellermayer and colleagues used a yeast model to test at the molecular level... secretory pathway Ca2+ Mn2+ ATPase (hSPCA1). The...

365

Recent advances in modeling stellar interiors (u)  

SciTech Connect (OSTI)

Advances in stellar interior modeling are being driven by new data from large-scale surveys and high-precision photometric and spectroscopic observations. Here we focus on single stars in normal evolutionary phases; we will not discuss the many advances in modeling star formation, interacting binaries, supernovae, or neutron stars. We review briefly: (1) updates to input physics of stellar models; (2) progress in two and three-dimensional evolution and hydrodynamic models; (3) insights from oscillation data used to infer stellar interior structure and validate model predictions (asteroseismology). We close by highlighting a few outstanding problems, e.g., the driving mechanisms for hybrid {gamma} Dor/{delta} Sct star pulsations, the cause of giant eruptions seen in luminous blue variables such as {eta} Car and P Cyg, and the solar abundance problem.

Guzik, Joyce Ann [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

366

Shell model Monte Carlo methods  

SciTech Connect (OSTI)

We review quantum Monte Carlo methods for dealing with large shell model problems. These methods reduce the imaginary-time many-body evolution operator to a coherent superposition of one-body evolutions in fluctuating one-body fields; resultant path integral is evaluated stochastically. We first discuss the motivation, formalism, and implementation of such Shell Model Monte Carlo methods. There then follows a sampler of results and insights obtained from a number of applications. These include the ground state and thermal properties of pf-shell nuclei, thermal behavior of {gamma}-soft nuclei, and calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are discussed. 87 refs.

Koonin, S.E. [California Inst. of Tech., Pasadena, CA (United States). W.K. Kellogg Radiation Lab.; Dean, D.J. [Oak Ridge National Lab., TN (United States)

1996-10-01T23:59:59.000Z

367

Basic model Basic model  

E-Print Network [OSTI]

Early days Basic model Literature Classical literature Bayes pre-MCMC Bayes post-MCMC Basic model systems via latent factors Hedibert Freitas Lopes Booth School of Business University of Chicago Col / 66 #12;Early days Basic model Literature Classical literature Bayes pre-MCMC Bayes post-MCMC Basic

Liu, I-Shih

368

Asthenospheric upwelling, oceanic slab retreat, and exhumation of UHP mantle rocks: Insights from Greater Antilles  

E-Print Network [OSTI]

of the Greater Antilles in Hispaniola. We use numerical models of intra-oceanic subduction to explain exhumation Antilles in Hispaniola [Abbott et al., 2006; Abbott et al., 2005]. Field observations show that the garnet and Hispaniola islands [e.g., Lewis et al., 2006]. It was formed during subduction of the Proto-Caribbean oceanic

369

Using precision gravity data in geothermal reservoir engineering modeling studies  

SciTech Connect (OSTI)

Precision gravity measurements taken at various times over a geothermal field can be used to derive information about influx into the reservoir. Output from a reservoir simulation program can be used to compute surface gravity fields and time histories. Comparison of such computer results with field-measured gravity data can add confidence to simulation models, and provide insight into reservoir processes. Such a comparison is made for the Bulalo field in the Philippines.

Atkinson, Paul G.; Pederseen, Jens R.

1988-01-01T23:59:59.000Z

370

Insights into Higher-Order Organization of the Cellulosome Revealed by a Dissect-and build Approach: Crystal Structure of Interacting Clostridium thermocellum Multimodular components  

SciTech Connect (OSTI)

Cellulosomes are large, multienzyme, plant cell wall-degrading protein complexes found affixed to the surface of a variety of anaerobic microbes. The core of the cellulosome is a noncatalytic scaffoldin protein, which contains several type-I cohesin modules that bind type-I dockerin-containing enzymatic subunits, a cellulose-binding module, an X module, and a type-II dockerin that interacts with type-II cohesin-containing cell surface proteins. The unique arrangement of the enzymatic subunits in the cellulosome complex, made possible by the scaffoldin subunit, promotes enhanced substrate degradation relative to the enzymes free in solution. Despite representative high-resolution structures of all of the individual modules of the cellulosome, this mechanism of enzymatic synergy remains poorly understood. Consequently, a model of the entire cellulosome and a detailed picture of intermodular contacts will provide more detailed insight into cellulosome activity. Toward this goal, we have solved the structure of a multimodular heterodimeric complex from Clostridium thermocellum composed of the type-II cohesin module of the cell surface protein SdbA bound to a trimodular C-terminal fragment of the scaffoldin subunit CipA to a resolution of 1.95 {angstrom}. The linker that connects the ninth type-I cohesin module and the X module has elevated temperature factors, reflecting an inherent flexibility within this region. Interestingly, a novel dimer interface was observed between CipA and a second, symmetry-related CipA molecule within the crystal structure, mediated by contacts between a type-I cohesin and an X module of a symmetry mate, resulting in two intertwined scaffoldins. Sedimentation velocity experiments confirmed that dimerization also occurs in solution. These observations support the intriguing possibility that individual cellulosomes can associate with one another via inter-scaffoldin interactions, which may play a role in the mechanism of action of the complex.

J Adams; M Currie; S Ali; E Bayer; Z Jia; S Smith

2011-12-31T23:59:59.000Z

371

Addressing resource over-exploitation via cooperative institutions: Insights from sector level technology roadmapping  

E-Print Network [OSTI]

is to dramatically improve non-labour based resource productivity as the world enters a period of sustained resource scarcity. The traditional linear consumption model of extraction to waste has led to the unsustainable consumption of finite resources... with their rate of regeneration, and non-renewables resources must be recycled within a circular economy. In a resource constrained world, resources will shift from being seen as cheap commodities to be consumed to valuable resources to be maintained as part of a...

More, Elliott; Phaal, Dr. Robert; Probert, David

2015-01-01T23:59:59.000Z

372

Queuing models System dynamics models  

E-Print Network [OSTI]

models Value chain models Business Model / Organizational Perspective Process Perspective Information#12;#12;#12;#12;Queuing models System dynamics models #12;#12;#12;#12;Blueprint or touchpoint

Glushko, Robert J.

373

Insights into the mechanism of a G-quadruplex-unwinding DEAH-box helicase  

E-Print Network [OSTI]

contained 4 nM DHX36 and 4 nM Z33 G4. The mix- ture was then incubated for an additional 10 min at 37?C before being analyzed by PAGE. Gels were either directly imaged or dried using a BioRad Model 583 Gel Drier and exposed to a storage phosphor screen... . Crystallogr., 60, 2126–2132. 27. Akman,S.A., Lingeman,R.G., Doroshow,J.H. and Smith,S.S. (1991) Quadruplex DNA formation in a region of the tRNA gene supF Nucleic Acids Research, 2015, Vol. 43, No. 4 2231 associated with hydrogen peroxide mediated mutations...

Chen, Michael C.; Murat, Pierre; Abecassis, Keren; Ferré-D’Amaré, Adrian R.; Balasubramanian, Shankar

2015-02-04T23:59:59.000Z

374

New insights into self-heating in double-gate transistors by solving Boltzmann transport equations  

SciTech Connect (OSTI)

Electro-thermal effects become one of the most critical issues for continuing the downscaling of electron devices. To study this problem, a new efficient self-consistent electron-phonon transport model has been developed. Our model of phonon Boltzmann transport equation (pBTE) includes the decay of optical phonons into acoustic modes and a generation term given by electron-Monte Carlo simulation. The solution of pBTE uses an analytic phonon dispersion and the relaxation time approximation for acoustic and optical phonons. This coupled simulation is applied to investigate the self-heating effects in a 20?nm-long double gate MOSFET. The temperature profile per mode and the comparison between Fourier temperature and the effective temperature are discussed. Some significant differences occur mainly in the hot spot region. It is shown that under the influence of self-heating effects, the potential profile is modified and both the drain current and the electron ballisticity are reduced because of enhanced electron-phonon scattering rates.

Thu Trang Nghiêm, T., E-mail: tthutrang.nghiem@gmail.com [Institute of Fundamental Electronics, UMR 8622, CNRS-University of Paris-Sud, Orsay (France); The Center for Thermal Sciences of Lyon, UMR 5008, CNRS–INSA–University of Lyon 1, Villeurbanne (France); Saint-Martin, J.; Dollfus, P. [Institute of Fundamental Electronics, UMR 8622, CNRS-University of Paris-Sud, Orsay (France)

2014-08-21T23:59:59.000Z

375

Cough REVIEW Diagnosis and treatment of chronic cough in China: an insight into the status quo  

E-Print Network [OSTI]

Chronic cough is a very common complaint in clinics throughout China. Clinical and basic science research on chronic cough started late, but in recent years the effort has yielded promising findings regarding the etiological diagnosis, treatment and pathogenesis. We found that inflammation in nonasthmatic eosinophilic bronchitis has some similarities to cough variant asthma but also a number of distinct differences. Recent evidence has also suggested a mechanistic link between airway neurogenic inflammation and and gastroesophageal reflux cough (GERC). Cough-related animal models have been developed, including models for esophageal reflux, nonasthmatic eosinophilic bronchitis and allergic rhinitis. Normal reference values for differential cell counts in induced sputum, cough sensitivity and esophageal 24-h pH monitoring in Chinese healthy subjects have been established. By using a modified algorithm for the etiological diagnosis of chronic cough, the causes of chronic cough have been investigated across a number of cities in China. The most common causes of chronic cough are cough variant asthma, eosinophilic bronchitis, upper airway cough symptoms, atopic cough and GERC, however, there are some regional variations. The Chinese National Guidelines on Diagnosis and Management of Chronic Cough were drafted in 2005, updated in 2009, and have been widely publicized and disseminated through many channels since their publication.

Kefang Lai; Wei Luo; Guangqiao Zeng; Nanshan Zhong

376

Human KZNF Gene Catalog - A comprehensive catalog of human KRAB-associated zinc finger genes: insights into the evolutionary history of a large family of transcriptional repressors  

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

Kruppel-type zinc finger (ZNF) motifs are prevalent components of transcription factor proteins in all eukaryotes. KRAB-ZNF proteins, in which a potent repressor domain is attached to a tandem array of DNA-binding zinc-finger motifs, are specific to tetrapod vertebrates and represent the largest class of ZNF proteins in mammals. To define the full repertoire of human KRAB-ZNF proteins, we searched the genome sequence for key motifs and then constructed and manually curated gene models incorporating those sequences. The resulting gene catalog contains 423 KRAB-ZNF protein-coding loci, yielding alternative transcripts that altogether predict at least 742 structurally distinct proteins. Active rounds of segmental duplication, involving single genes or larger regions and including both tandem and distributed duplication events, have driven the expansion of this mammalian gene family. Comparisons between the human genes and ZNF loci mined from the draft mouse, dog, and chimpanzee genomes not only identified 103 KRAB-ZNF genes that are conserved in mammals but also highlighted a substantial level of lineage-specific change; at least 136 KRAB-ZNF coding genes are primate specific, including many recent duplicates. KRAB-ZNF genes are widely expressed and clustered genes are typically not coregulated, indicating that paralogs have evolved to fill roles in many different biological processes. To facilitate further study, we have developed a Web-based public resource with access to gene models, sequences, and other data, including visualization tools to provide genomic context and interaction with other public data sets. [This abstract was copied from: S Huntley, DM Baggott, AT Hamilton, M Tran-Gyamfi, S Yang, J Kim, L Gordon, E Branscomb, and L Stubbs. 2006. A comprehensive catalog of human KRAB-associated zinc finger genes: insights into the evolutionary history of a large family of transcriptional repressors, Genome Research 16(5):669 - 677] The website provides the ability to search the online catalog by genomic coordinates, name, locus type, and motifs, to utilize a graphical browser and to download data files.

Huntley, S; Baggott, D.M.; Hamilton, A.T.; Tran-Gyamfi, M.; Yang, S.; Kim, J.; Gordon, L.; Branscomb, E.; Stubbs, L.

377

An analysis of oil supply disruption scenarios  

E-Print Network [OSTI]

This report brings the results of simulations of some oil supply disruptions on the M.I.T. Energy Laboratory Energy Macro Model. This model has previously been used to study the macroeconomic effects of the 1973-74 and ...

Mork, Knut Anton

1981-01-01T23:59:59.000Z

378

J Stat Phys (2013) 151:131149 DOI 10.1007/s10955-012-0635-2  

E-Print Network [OSTI]

, emergence of extremism and so on. One of the main problems addressed by some of these models is whether- garding the legalization of drugs or abortion, or predictions about macroeconomic variables. Two models

Toral, Raúl

379

Project Profile: Physics-Based Reliability Models for Supercritical-CO2 Turbomachinery Components  

Broader source: Energy.gov [DOE]

GE, under the Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) Program will be leveraging internally developed models to predict the reliability of hybrid gas bearing (HGB) and dry gas seal (DGS) components in the turboexpander of a supercritical CO2 turbine. The Bayesian model is to include phase changes, low cycle fatigue/high cycle fatigue, dynamic instabilities, and corrosion processes.

380

New methods for estimation, modeling and validation of dynamical systems using automatic differentiation  

E-Print Network [OSTI]

equations, for a class of nonlinear dynamical systems. In the area of trajectory optimization some new ideas are presented for automating the process of deriving co- state differential equations. Additionally, higher-order algorithms for computing... midcourse corrections are introduced. In Chapter IV, some new insights into modeling of dynamical systems are presented. Producing dynamical models in the form of coupled nonlinear differential equations is a frequent first step for analysis, estimation...

Griffith, Daniel Todd

2005-02-17T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Insights from EMF Associated Agricultural and Forestry Greenhouse Gas Mitigation Studies  

SciTech Connect (OSTI)

Integrated assessment modeling (IAM) as employed by the Energy Modeling Forum (EMF) generally involves a multi-sector appraisal of greenhouse gas emission (GHGE) mitigation alternatives and climate change effects typically at the global level. Such a multi-sector evaluation encompasses potential climate change effects and mitigative actions within the agricultural and forestry (AF) sectors. In comparison with many of the other sectors covered by IAM, the AF sectors may require somewhat different treatment due to their critical dependence upon spatially and temporally varying resource and climatic conditions. In particular, in large countries like the United States, forest production conditions vary dramatically across the landscape. For example, some areas in the southern US present conditions favorable to production of fast growing, heat tolerant pine species, while more northern regions often favor slower-growing hardwood and softwood species. Moreover, some lands are currently not suitable for forest production (e.g., the arid western plains). Similarly, in agriculture, the US has areas where citrus and cotton can be grown and other areas where barley and wheat are more suitable. This diversity across the landscape causes differential GHGE mitigation potential in the face of climatic changes and/or responses to policy or price incentives. It is difficult for a reasonably sized global IAM system to reflect the full range of sub-national geographic AF production possibilities alluded to above. AF response in the face of climate change altered temperature precipitation regimes or mitigation incentives will likely involve region-specific shifts in land use and agricultural/forest production. This chapter addresses AF sectoral responses in climate change mitigation analysis. Specifically, we draw upon US-based studies of AF GHGE mitigation possibilities that incorporate sub-national detail drawing largely on a body of studies done by the authors in association with EMF activities. We discuss characteristics of AF sectoral responses that could be incorporated in future IAM efforts in climate change policy.

McCarl, Bruce A.; Murray, Brian; Kim, Man-Keun; Lee, Heng-Chi; Sands, Ronald D.; Schneider, Uwe

2007-11-19T23:59:59.000Z

382

Model Evaluation and Hindcasting: An Experiment with an Integrated Assessment Model  

SciTech Connect (OSTI)

Integrated assessment models have been extensively used for analyzing long term energy and greenhouse emissions trajectories and have influenced key policies on this subject. Though admittedly these models are focused on the long term trajectories, how well these models are able to capture historical dynamics is an open question. In a first experiment of its kind, we present a framework for evaluation of such integrated assessment models. We use Global Change Assessment Model for this zero order experiment, and focus on the building sector results for USA. We calibrate the model for 1990 and run it forward up to 2095 in five year time steps. This gives us results for 1995, 2000, 2005 and 2010 which we compare to observed historical data at both fuel level and service level. We focus on bringing out the key insights for the wider process of model evaluation through our experiment with GCAM. We begin with highlighting that creation of an evaluation dataset and identification of key evaluation metric is the foremost challenge in the evaluation process. Our analysis highlights that estimation of functional form of the relationship between energy service demand, which is an unobserved variable, and its drivers is a significant challenge in the absence of adequate historical data for both the dependent and driver variables. Historical data availability for key metrics is a serious limiting factor in the process of evaluation. Interestingly, service level data against which such models need to be evaluated are itself a result of models. Thus for energy services, the best we can do is compare our model results with other model results rather than observed and measured data. We show that long term models, by the nature of their construction, will most likely underestimate the rapid growth in some services observed in a short time span. Also, we learn that modeling saturated energy services like space heating is easier than modeling unsaturated services like space cooling and understanding that how far a service is from its saturation level is a key question which we probably don’t have an answer to. Finally and most importantly, even if long term models partially miss the short term dynamics, the long term insights provides by these models is fairly robust. We conclude by highlighting that our work is the first step in the much wider process of integrated assessment model evaluation and will hence have its own limitations. Future evaluation research work should build upon this zero order experiment for improving our modeling of human and coupled earth systems.

Chaturvedi, Vaibhav; Kim, Son H.; Smith, Steven J.; Clarke, Leon E.; Zhou, Yuyu; Kyle, G. Page; Patel, Pralit L.

2013-11-01T23:59:59.000Z

383

Insights into the crystal chemistry of Earth materials rendered by electron density distributions: Pauling's rules revisited  

SciTech Connect (OSTI)

Pauling's first two rules are examined in terms of the accumulation of the electron density between bonded pairs of atoms for a relatively large number of oxide and silicate crystals and siloxane molecules. The distribution of the electron density shows that the radius of the oxygen atom is not fixed, but that it actually decreases systematically from ~1.40 Å to ~ 0.65 Å as the polarizing power and the electronegativity of the bonded metal atoms increase and the distribution of the O atom is progressively polarized and contracted along the bond vectors by the impact of the bonded interactions. The contractions result in an aspherical oxygen atom that displays as many different bonded “radii” as it has bonded interactions. The bonded radii for the metal atoms match the Shannon and Prewitt ionic radii for the more electropositive atoms like potassium and sodium, but they are systematically larger for the more electronegative atoms like aluminum, silicon and phosphorous. Pauling's first rule is based on the assumption that the radius of the oxide anion is fixed and that the radii of the cations are such that radius sum of the spherical oxide anion and a cation necessarily equals the separation between the cation-anion bonded pair with the coordination number of the cation being determined by the ratio of the radii of the cation and anion. In the case of the bonded radii, the sum of the bonded radii for the metal atoms and the oxide anion necessarily equals the bond lengths by virtue of the way that the bonded radii were determined in the partitioning of the electron density along the bond path into metal and O atom parts. But, the radius ratio for the O and M atoms is an unsatisfactory rule for determining the coordination number of the metal atom inasmuch as a bonded O atom is not, in general, spherical, and its size varies substantially along its bonded directions. But by counting the number of bond paths that radiate from a bonded atom, the coordination number of the atom is determined uniquely independent of the asphericity and sizes of the atom. A power law connection established between the bond lengths and bond strengths for crystals and molecules is mirrored by a comparable power law connection between bond length and the accumulation of the electron density between bonded pairs of atoms, a connection that is consistent with Pauling's electroneutrality postulate that the charges of the atoms in an oxide are negligibly small. The connection indicates that a one-to-one correspondence exists between the accumulation between a pair of bonded atoms and the Pauling bond strength for M-O bonded interaction for all atoms of the periodic table. The connection provides a common basis for understanding the success of the manifold applications that have been made with the bond valence theory model together with the modeling of crystal structures, chemical zoning, leaching and cation transport in batteries and the like. We believe that the wide spread applications of the model in mineralogy and material science owes much of its success to the direct connection between bond strength and the quantum mechanical observable, the electron density distribution. Comparable power law expressions established for the bonded interactions for both crystals and molecules support Pauling's assertion that his second rule has significance for molecules as well as for crystals. A simple expression is found that provides a one to one connection between the accumulation of the electron density between bonded M and O atoms and the Pauling bond strength for all M atoms of the periodic table with ~ 95 % of the variation of the bond strength being explained in terms of a linear dependence on the accumulated electron density. Compelling evidence is presented that supports the argument that the Si-O bonded interactions for tiny siloxane molecules and silicate crystals are chemically equivalent.

Gibbs, Gerald V.; Ross, Nancy L.; Cox, David F.; Rosso, Kevin M.

2014-05-20T23:59:59.000Z

384

Model documentation report: Commercial Sector Demand Module of the National Energy Modeling System  

SciTech Connect (OSTI)

This report documents the objectives, analytical approach and development of the National Energy Modeling System (NEMS) Commercial Sector Demand Module. The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated through the synthesis and scenario development based on these components. The NEMS Commercial Sector Demand Module is a simulation tool based upon economic and engineering relationships that models commercial sector energy demands at the nine Census Division level of detail for eleven distinct categories of commercial buildings. Commercial equipment selections are performed for the major fuels of electricity, natural gas, and distillate fuel, for the major services of space heating, space cooling, water heating, ventilation, cooking, refrigeration, and lighting. The algorithm also models demand for the minor fuels of residual oil, liquefied petroleum gas, steam coal, motor gasoline, and kerosene, the renewable fuel sources of wood and municipal solid waste, and the minor services of office equipment. Section 2 of this report discusses the purpose of the model, detailing its objectives, primary input and output quantities, and the relationship of the Commercial Module to the other modules of the NEMS system. Section 3 of the report describes the rationale behind the model design, providing insights into further assumptions utilized in the model development process to this point. Section 3 also reviews alternative commercial sector modeling methodologies drawn from existing literature, providing a comparison to the chosen approach. Section 4 details the model structure, using graphics and text to illustrate model flows and key computations.

NONE

1998-01-01T23:59:59.000Z

385

Insights into the particle acceleration of a peculiar gamma -ray radio galaxy IC 310  

E-Print Network [OSTI]

IC 310 has recently been identified as a gamma-ray emitter based on observations at GeV energies with Fermi-LAT and at very high energies (VHE, E > 100 GeV) with the MAGIC telescopes. Despite IC 310 having been classified as a radio galaxy with the jet observed at an angle > 10 degrees, it exhibits a mixture of multiwavelength properties of a radio galaxy and a blazar, possibly making it a transitional object. On the night of 12/13th of November 2012 the MAGIC telescopes observed a series of violent outbursts from the direction of IC 310 with flux-doubling time scales faster than 5 min and a peculiar spectrum spreading over 2 orders of magnitude. Such fast variability constrains the size of the emission region to be smaller than 20% of the gravitational radius of its central black hole, challenging the shock acceleration models, commonly used in explanation of gamma-ray radiation from active galaxies. Here we will show that this emission can be associated with pulsar-like particle acceleration by the electric...

Sitarek, J; Mannheim, K; Colin, P; Kadler, M; Schultz, R; Krauß, F; Ros, E; Bach, U; Wilms, J

2015-01-01T23:59:59.000Z

386

Structural insight into recruitment of translesion DNA polymerase Dpo4 to sliding clamp PCNA  

SciTech Connect (OSTI)

DNA polymerases are co-ordinated by sliding clamps (PCNA/{beta}-clamp) in translesion synthesis. It is unclear how these enzymes assemble on PCNA with geometric and functional compatibility. We report the crystal structure of a full-length Y-family polymerase, Dpo4, in complex with heterodimeric PCNA1-PCNA2 at 2.05 {angstrom} resolution. Dpo4 exhibits an extended conformation that differs from the Dpo4 structures in apo- or DNA-bound form. Two hinges have been identified in Dpo4, which render the multidomain polymerase flexible conformations and orientations relative to PCNA. Dpo4 binds specifically to PCNA1 on the conserved ligand binding site. The C-terminal peptide of Dpo4 becomes structured with a 3{sub 10} helix and dominates the specific binding. The Y-family polymerase also contacts PCNA1 with its finger, thumb and little finger domains, which are conformation-dependent protein-protein interactions that diversify the binding mode of Dpo4 on PCNA. The structure reveals a molecular model in which substrate/partner binding-coupled multiple conformations of a Y-family polymerase facilitate its recruitment and co-ordination on the sliding clamp. The conformational flexibility would turn the error-prone Y-family polymerase off when more efficient high-fidelity DNA polymerases work on undamaged DNA and turn it onto DNA templates to perform translesion synthesis when replication forks are stalled by DNA lesions.

Xing, G.; Kirouac, K.; Shin, Y.J.; Bell, S.D.; Ling, H.; (UWO); (Sir W.Dunn)

2009-09-16T23:59:59.000Z

387

Insights from the Nogales Predator Crash for the Integration of UAV's into the US National Airspace System under FAA Interim Operational Approval Guidance 08-01  

E-Print Network [OSTI]

Insights from the Nogales Predator Crash for the Integration of UAV's into the US National Airspace Traffic Management. Abstract In April 2006, an Unmanned Aerial Vehicle (UAV) crashed near Nogales, Arizona whether a process that enables the same agency to act as regulator and operator of a UAV can be justified

Johnson, Chris

388

Syntheses and anti-MRSA activities of the C3 analogs of mansonone F, a potent anti-bacterial sesquiterpenoid: insights into  

E-Print Network [OSTI]

Syntheses and anti-MRSA activities of the C3 analogs of mansonone F, a potent anti-bacterial sesquiterpenoid: insights into its structural requirements for anti-MRSA activity Dong-Yun Shin,a Sun Nam Kim June 2004 Available online 3 July 2004 Abstract--Syntheses and excellent anti-MRSA activities

Suh, Young-Ger

389

New Insight on a Vertically Aligned Single-Walled Carbon Nanotube Film and an Application to All-Fiber Passive Mode-Locker  

E-Print Network [OSTI]

New Insight on a Vertically Aligned Single-Walled Carbon Nanotube Film and an Application to All-Fiber is gained on the structure of the vertically aligned single-wall carbon nanotubes (VA-SWNTs) [1-3] generated attractions including wide operating bandwidth ranging from 1 to 2 m, ultra-short recovery time (~500 fs

Maruyama, Shigeo

390

"In terms of the long-term outlook for biomass and biofuels, the largest proportion of Business Insights industry survey respondents  

E-Print Network [OSTI]

"In terms of the long-term outlook for biomass and biofuels, the largest proportion of Business Insights industry survey respondents (47%) thought that biofuels would account for 5-10% of total global fuel production by 2017. A further 25% of respondents thought that biofuels would account for 2

391

PermianTriassic amalgamation of Asia: Insights from Northeast China sutures and their place in the final collision of North China  

E-Print Network [OSTI]

Permian­Triassic amalgamation of Asia: Insights from Northeast China sutures and their place in the final collision of North China and Siberia L'amalgamation permo-triasique de l'Asie : données nouvelles Academy of Sciences, Beijing 100029, China b UMR 6113, institut des sciences de la Terre d

Paris-Sud XI, Université de

392

Insights into the issues facing pharmaceutical companies for information provision: a report on the P-D-R special meeting, La Grande Motte, 28-29  

E-Print Network [OSTI]

the pharmaceutical industry. The pharmaceutical industry is the only corporate sector with a long and profitable1 Insights into the issues facing pharmaceutical companies for information provision: a report: The article reports on the use of primary information in pharmaceutical companies, on global services arising

Paris-Sud XI, Université de

393

Sea ice loss and the changing atmospheric CO2 uptake capacity of the Arctic Ocean: Insights1 from the southeastern Canada Basin2  

E-Print Network [OSTI]

Sea ice loss and the changing atmospheric CO2 uptake capacity of the Arctic Ocean: Insights1 from (Arctic Ocean) to act as an atmospheric CO2 sink under the summertime ice-free conditions12 expected in the near future. Beneath a heavily decayed ice cover, we found surprisingly high13 pCO2sw (~290-320 atm

Paris-Sud XI, Université de

394

8th International Conference on LCA in the Agri-Food Sector, Rennes, France, 2-4 October 2012 Life Cycle Assessment at the regional scale: innovative insights  

E-Print Network [OSTI]

in groundwater irrigated areas worldwide are manifold and the Life Cycle Assessment (LCA) is very relevant and decision making is carried out, Life Cycle Assessment (LCA) should be applied at regional scale, which Life Cycle Assessment at the regional scale: innovative insights based on the Systems Approach used

Boyer, Edmond

395

PII S0016-7037(02)01117-1 Diopside-bearing EL6 EET 90102: Insights from rare earth element distributions  

E-Print Network [OSTI]

PII S0016-7037(02)01117-1 Diopside-bearing EL6 EET 90102: Insights from rare earth element a study of the rare earth element (REE) distributions in EET 90102, with a specific emphasis on diopside or rare in other terrestrial or extra- terrestrial rocks. Typically, lithophile elements form sulfide

396

Environment and climate of the last 51,000 years e new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO)  

E-Print Network [OSTI]

Environment and climate of the last 51,000 years e new insights from the Potrok Aike maar lake Sediment Archive Drilling prOject (PASADO) B. Zolitschka a,*, F. Anselmetti b , D. Ariztegui c , H-M, D-28359 Bremen, Germany b Eawag, Swiss Federal Institute of Aquatic Science and Technology

Long, Bernard

397

New insights for estimating the genetic value of F1 apple progenies for irregular bearing1 during first years of tree production2  

E-Print Network [OSTI]

1 New insights for estimating the genetic value of F1 apple progenies for irregular bearing1 during title: Early quantification of alternation in flowering for F1 apple progenies18 Submitted: 02 agronomic issues in1 fruit-tree species, particularly in apple, the selection of regular cultivars

Paris-Sud XI, Université de

398

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

E-Print Network [OSTI]

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

Maxwell, Bruce D.

399

Improving water quality with a "territorial" agri-environmental policy? Insights from the new generation AES in South-West France  

E-Print Network [OSTI]

1 Improving water quality with a "territorial" agri-environmental policy? Insights from the new with the Local Agri-Environmental Schemes (LAES), the French contractual policy instrument within the European underlie the French agri-environmental policy, from a retrospective of the successive national schemes set

Paris-Sud XI, Université de

400

Insights into Silicate Carbonation Processes in Water-Bearing Supercritical CO2 Fluids  

SciTech Connect (OSTI)

Long-term geologic storage of carbon dioxide (CO2) is considered an integral part to moderating CO2 concentrations in the atmosphere and subsequently minimizing effects of global climate change. Although subsurface injection of CO2 is common place in certain industries, deployment at the scale required for emission reduction is unprecedented and therefore requires a high degree of predictability. Accurately modeling geochemical processes in the subsurface requires experimental derived data for mineral reactions occurring between the CO2, water, and rocks. Most work in this area has focused on aqueous-dominated systems in which dissolved CO2 reacts to form crystalline carbonate minerals. Comparatively little laboratory research has been conducted on reactions occurring between minerals in the host rock and the wet supercritical fluid phase. In this work, we studied the carbonation of wollastonite [CaSiO3] exposed to variably hydrated supercritical CO2 (scCO2) at a range of temperatures (50, 55 and 70 °C) and pressures (90,120 and 160 bar) that simulate conditions in geologic repositories. Mineral transformation reactions were followed by three novel in situ high pressure techniques, including x-ray diffraction that tracked the rate and extents of wollastonite conversion to calcite. Increased dissolved water concentrations in the supercritical CO2 resulted in increased silicate carbonation approaching ~50 wt. %. Development of thin water films on the mineral surface were directly observed with infrared spectroscopy and determined to be critical for facilitating carbonation processes. Even in extreme low water conditions, magic angle spinning nuclear magnetic resonance detected formation of Q3 [Si(OSi)3OH] and Q4 [Si(OSi)4] amorphous silica species. Unlike the thick (<10 ?m) passivating silica layers observed in the fully water saturated scCO2 experiments, images obtained from a focused ion beam sectioned sample indicted these coatings were chemically wollastonite but structurally amorphous. In addition, evidence of an intermediate hydrated amorphous calcium carbonate forming under these conditions further emphasize the importance of understanding geochemical processes occurring in water bearing scCO2 fluids.

Miller, Quin RS; Thompson, Christopher J.; Loring, John S.; Windisch, Charles F.; Bowden, Mark E.; Hoyt, David W.; Hu, Jian Z.; Arey, Bruce W.; Rosso, Kevin M.; Schaef, Herbert T.

2013-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

New insight into the properties of proton conducting oxides from neutron total scattering  

SciTech Connect (OSTI)

In recent years there has been a growing interest in searching for new proton conducting materials that could be successfully used in medium temperature solid oxide fuel cells (SOFC). In particular, proton conducting oxides have been the subject of a massive research activity. Among the most promising oxide the acceptor doped cerates appears to be those most appealing in view of practical applications. A relevant aspect of these materials is the investigation of the local distortion of the structure arising from water incorporation. This kind of study is of great help in defining how the structure changes in order to accommodate the proton which is usually thought to enter the structure in form of hydroxyl group where the oxygen vacancy results from the acceptor doping on the Ce site. Atomistic simulation work confirmed that the preferential location of dopant ions is on the Ce site. To the best of our knowledge the only experimental work addressing the role of dopant and water incorporation on the local structure of V-doped cerates is a X-ray absorption spectroscopy (XAS) work carried out by Longo and coworkers at the Y K-edge. The main conclusion of that work was the observation that Y-doping induces a distortion of the parent BaCe0{sub 3} structure resulting in a significantly distorted Y local environment. However, local structure information derived from XAS study does not provide a direct structural information and depends strongly upon the model used to calcualte theoretical {chi}(k) which is not unique. Moreover, the XAS analysis usually provide significant information only up to the second shell. As a consequence, a more reliable and useful technique to investigate the local arrangement in these proton conducting oxides appears to be the Pair Distribution Function (PDF) analysis derived from total neutron scattering measurements. In the present work we investigated the pure BaCeO{sub 3} and the acceptor doped BaCe{sub 0.90}Y{sub 0.10}O{sub 2.85} compounds. In both cases the samples have been measured at room temperature and after being exposed to dry and wet air (humidification attained through bubbling air in D{sub 2}O). Aim of this work is to look at the effect of Y-doping and water doping on the local structure of the above mentioned samples.

Proffen, Thomas E [Los Alamos National Laboratory; Kim, Hyunjeong [Los Alamos National Laboratory; Malavasi, Lorenzo [U PAVIA, ITALY; Flor, Giorgio [U PAVIA, ITALY

2008-01-01T23:59:59.000Z

402

Risk perception & strategic decision making :general insights, a framework, and specific application to electricity generation using nuclear energy.  

SciTech Connect (OSTI)

The objective of this report is to promote increased understanding of decision making processes and hopefully to enable improved decision making regarding high-consequence, highly sophisticated technological systems. This report brings together insights regarding risk perception and decision making across domains ranging from nuclear power technology safety, cognitive psychology, economics, science education, public policy, and neural science (to name a few). It forms them into a unique, coherent, concise framework, and list of strategies to aid in decision making. It is suggested that all decision makers, whether ordinary citizens, academics, or political leaders, ought to cultivate their abilities to separate the wheat from the chaff in these types of decision making instances. The wheat includes proper data sources and helpful human decision making heuristics; these should be sought. The chaff includes ''unhelpful biases'' that hinder proper interpretation of available data and lead people unwittingly toward inappropriate decision making ''strategies''; obviously, these should be avoided. It is further proposed that successfully accomplishing the wheat vs. chaff separation is very difficult, yet tenable. This report hopes to expose and facilitate navigation away from decision-making traps which often ensnare the unwary. Furthermore, it is emphasized that one's personal decision making biases can be examined, and tools can be provided allowing better means to generate, evaluate, and select among decision options. Many examples in this report are tailored to the energy domain (esp. nuclear power for electricity generation). The decision making framework and approach presented here are applicable to any high-consequence, highly sophisticated technological system.

Brewer, Jeffrey D.

2005-11-01T23:59:59.000Z

403

Cross-study and cross-omics comparisons of three nephrotoxic compounds reveal mechanistic insights and new candidate biomarkers  

SciTech Connect (OSTI)

The European InnoMed-PredTox project was a collaborative effort between 15 pharmaceutical companies, 2 small and mid-sized enterprises, and 3 universities with the goal of delivering deeper insights into the molecular mechanisms of kidney and liver toxicity and to identify mechanism-linked diagnostic or prognostic safety biomarker candidates by combining conventional toxicological parameters with 'omics' data. Mechanistic toxicity studies with 16 different compounds, 2 dose levels, and 3 time points were performed in male Crl: WI(Han) rats. Three of the 16 investigated compounds, BI-3 (FP007SE), Gentamicin (FP009SF), and IMM125 (FP013NO), induced kidney proximal tubule damage (PTD). In addition to histopathology and clinical chemistry, transcriptomics microarray and proteomics 2D-DIGE analysis were performed. Data from the three PTD studies were combined for a cross-study and cross-omics meta-analysis of the target organ. The mechanistic interpretation of kidney PTD-associated deregulated transcripts revealed, in addition to previously described kidney damage transcript biomarkers such as KIM-1, CLU and TIMP-1, a number of additional deregulated pathways congruent with histopathology observations on a single animal basis, including a specific effect on the complement system. The identification of new, more specific biomarker candidates for PTD was most successful when transcriptomics data were used. Combining transcriptomics data with proteomics data added extra value.

Matheis, Katja A., E-mail: katja.matheis@boehringer-ingelheim.com [Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss (Germany); Com, Emmanuelle [Sanofi-Aventis, Paris (France); High-Throughput Proteomics Core Facility OUEST-genopole (registered) , Rennes (France); Gautier, Jean-Charles [Sanofi-Aventis, Paris (France); Guerreiro, Nelson [Novartis Institutes for BioMedical Research (NIBR), Basel (Switzerland); Brandenburg, Arnd; Gmuender, Hans [GeneData AG, Basel (Switzerland); Sposny, Alexandra; Hewitt, Philip [Merck KGaA, Darmstadt (Germany); Amberg, Alexander [Sanofi-Aventis, Frankfurt (Germany); Boernsen, Olaf [Novartis Institutes for BioMedical Research (NIBR), Basel (Switzerland); Riefke, Bjoern [Bayer Schering Pharma AG, Berlin (Germany); Hoffmann, Dana; Mally, Angela [Department of Toxicology, University of Wuerzburg, Wuerzburg (Germany); Kalkuhl, Arno [Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss (Germany); Suter, Laura [F. Hoffmann-La Roche, Ltd., Basel (Switzerland); Dieterle, Frank; Staedtler, Frank [Novartis Institutes for BioMedical Research (NIBR), Basel (Switzerland)

2011-04-15T23:59:59.000Z

404

The NMDA Receptor NR1 C1 Region Bound to Calmodulin: Structural Insights into Functional Differences between Homologous Domains  

SciTech Connect (OSTI)

Calmodulin (CaM) regulates tetrameric N-methyl-D-aspartate receptors (NMDARs) by binding tightly to the C0 and C1 regions of its NR1 subunit. A crystal structure (2HQW; 1.96 {angstrom}) of calcium-saturated CaM bound to NR1C1 (peptide spanning 875-898) showed that NR1 S890, whose phosphorylation regulates membrane localization, was solvent protected, whereas the endoplasmic reticulum retention motif was solvent exposed. NR1 F880 filled the CaM C-domain pocket, whereas T886 was closest to the N-domain pocket. This 1-7 pattern was most similar to that in the CaM-MARCKS complex. Comparison of CaM-ligand wrap-around conformations identified a core tetrad of CaM C-domain residues (FLMM{sub C}) that contacted all ligands consistently. An identical tetrad of N-domain residues (FLMM{sub N}) made variable sets of contacts with ligands. This CaM-NR1C1 structure provides a foundation for designing mutants to test the role of CaM in NR1 trafficking as well as insights into how the homologous CaM domains have different roles in molecular recognition.

Ataman, Zeynep Akyol; Gakhar, Lokesh; Sorensen, Brenda R.; Hell, Johannes W.; Shea, Madeline A. (Iowa)

2008-09-17T23:59:59.000Z

405

Multi-scale Detection of Organic and Inorganic Signatures Provides Insights into Gas Shale Properties and Evolution  

SciTech Connect (OSTI)

Organic geochemical analyses, including solvent extraction or pyrolysis, followed by gas chromatography and mass spectrometry, are generally conducted on bulk gas shale samples to evaluate their source and reservoir properties. While organic petrology has been directed at unravelling the matrix composition and textures of these economically important unconventional resources, their spatial variability in chemistry and structure is still poorly documented at the sub-micrometre scale. Here, a combination of techniques including transmission electron microscopy and a synchrotron-based microscopy tool, scanning transmission X-ray microscopy, have been used to characterize at a multiple length scale an overmature organic-rich calcareous mudstone from northern Germany. We document multi-scale chemical and mineralogical heterogeneities within the sample, from the millimetre down to the nanometre-scale. From the detection of different types of bitumen and authigenic minerals associated with the organic matter, we show that the multi-scale approach used in this study may provide new insights into gaseous hydrocarbon generation/retention processes occurring within gas shales and may shed new light on their thermal history.

Bernard, S.; Horsfield, B; Schultz, H; Schreiber, A; Wirth, R; Thi AnhVu, T; Perssen, F; Konitzer, S; Volk, H; et. al.

2010-01-01T23:59:59.000Z

406

Insight into the Properties of the UK Power Consumption Using a Linear Regression and Wavelet Transform Approach  

E-Print Network [OSTI]

In this paper, the relationship between the Gross Domestic Product (GDP), air temperature variations and power consumption is evaluated using the linear regression and Wavelet Coherence (WTC) approach on a 1971-2011 time series for the United Kingdom (UK). The results based on the linear regression approach indicate that some 66% variability of the UK electricity demand can be explained by the quarterly GDP variations, while only 11% of the quarterly changes of the UK electricity demand are caused by seasonal air temperature variations. WTC however, can detect the period of time when GDP and air temperature significantly correlate with electricity demand and the results of the wavelet correlation at different time scales indicate that a significant correlation is to be found on a long-term basis for GDP and on an annual basis for seasonal air-temperature variations. This approach provides an insight into the properties of the impact of the main factors on power consumption on the basis of which the power syst...

Avdakovic, Samir; Nuhanovic, Amir

2013-01-01T23:59:59.000Z

407

Insights into Hsp70 Chaperone Activity from a Crystal Structure of the Yeast Hsp110 Sse1  

SciTech Connect (OSTI)

Classic Hsp70 chaperones assist in diverse processes of protein folding and translocation, and Hsp110s had seemed by sequence to be distant relatives within an Hsp70 superfamily. The 2.4 Angstroms resolution structure of Sse1 with ATP shows that Hsp110s are indeed Hsp70 relatives, and it provides insight into allosteric coupling between sites for ATP and polypeptide-substrate binding in Hsp70s. Subdomain structures are similar in intact Sse1(ATP) and in the separate Hsp70 domains, but conformational dispositions are radically different. Interfaces between Sse1 domains are extensive, intimate, and conservative in sequence with Hsp70s. We propose that Sse1(ATP) may be an evolutionary vestige of the Hsp70(ATP) state, and an analysis of 64 mutant variants in Sse1 and three Hsp70 homologs supports this hypothesis. An atomic-level understanding of Hsp70 communication between ATP and substrate-binding domains follows. Requirements on Sse1 for yeast viability are in keeping with the distinct function of Hsp110s as nucleotide exchange factors.

Liu,Q.; Hendrickson, W.

2007-01-01T23:59:59.000Z

408

Modeling Power System Operation with Intermittent Resources  

SciTech Connect (OSTI)

Electricity generating companies and power system operators face the need to minimize total fuel cost or maximize total profit over a given time period. These issues become optimization problems subject to a large number of constraints that must be satisfied simultaneously. The grid updates due to smart-grid technologies plus the penetration of intermittent re- sources in electrical grid introduce additional complexity to the optimization problem. The Renewable Integration Model (RIM) is a computer model of interconnected power system. It is intended to provide insight and advice on complex power systems management, as well as answers to integration of renewable energy questions. This paper describes RIM basic design concept, solution method, and the initial suite of modules that it supports.

Marinovici, Maria C.; Kirkham, Harold; Glass, Kevin A.; Carlsen, Leif C.

2013-02-27T23:59:59.000Z

409

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

410

A Self-Consistent Method to Assess Air Quality Co-Benefits from US Climate Policies  

E-Print Network [OSTI]

Air quality co-benefits can potentially reduce the costs of greenhouse gas mitigation. However, while many studies of the cost of greenhouse gas mitigation model the full macroeconomic welfare impacts, most studies of air ...

Saari, R.

411

Induced technical change and the cost of climate policy  

E-Print Network [OSTI]

This paper investigates the potential for a carbon tax to induce R&D, and for the consequent induced technical change (ITC) to lower the macroeconomic cost of abating carbon emissions. ITC is modelled within a general ...

Sue Wing, Ian.

412

New insight into the ZnO sulfidation reaction:mechanism and kinetics modeling of the ZnS outward growth  

E-Print Network [OSTI]

) 1532-1545" DOI : 10.1039/C2CP42988H #12;1. Introduction Among the second generation biofuels processes

Boyer, Edmond

413

Motor Neuron-Specific Restoration of SMN in Two SMA Mouse Models: Insights into the Role of Motor Neurons in Spinal Muscular Atrophy  

E-Print Network [OSTI]

. The intronic splicing silencer (N1 ISS-N1, discovered by Singh et al. 2006) is the main checkpoint of SMN2 exon 7 splicing regulation. Once ISS-N1 is deleted exon 7 is included. Anti-N1 treatment was capable of elevating SMN levels in type I SMA patient...

Paez, Ximena

2014-06-02T23:59:59.000Z

414

Dynamics of P-binding forms in sediments of a mesotrophic hard-water lake: Insights from non-steady state reactive-transport modeling,  

E-Print Network [OSTI]

Gudimov 1 , George Arhonditsis, Alexey Chesnyuk, Maria Dittrich Department of Physical and Environmental r t i c l e i n f o Article history: Received 6 November 2012 Received in revised form 10 June 2013 the fractionation data of phosphorus binding forms. The impact of the interplay between sedi- mentation fluxes

Arhonditsis, George B.

415

Sources and production of organic aerosol in Mexico City: insights from the combination of a chemical transport model (PMCAMx-2008) and measurements  

E-Print Network [OSTI]

Urban areas are large sources of organic aerosols and their precursors. Nevertheless, the contributions of primary (POA) and secondary organic aerosol (SOA) to the observed particulate matter levels have been difficult to ...

Tsimpidi, A. P.

416

DU145 human prostate cancer cells express functional Receptor Activator of NF-B: New insights in the prostate cancer bone metastasis process.  

E-Print Network [OSTI]

1 DU145 human prostate cancer cells express functional Receptor Activator of NF-B: New insights in the prostate cancer bone metastasis process. Mori K.1, 2, * , Le Goff B. 1, 2 , Charrier C. 1, 2 , Battaglia S;40(4):981-90" DOI : 10.1016/j.bone.2006.11.006 #12;2 Abstract Prostate cancer metastases to bone are observed

Boyer, Edmond

417

Biomass Scenario Model Documentation: Data and References  

SciTech Connect (OSTI)

The Biomass Scenario Model (BSM) is a system dynamics model that represents the entire biomass-to-biofuels supply chain, from feedstock to fuel use. The BSM is a complex model that has been used for extensive analyses; the model and its results can be better understood if input data used for initialization and calibration are well-characterized. It has been carefully validated and calibrated against the available data, with data gaps filled in using expert opinion and internally consistent assumed values. Most of the main data sources that feed into the model are recognized as baseline values by the industry. This report documents data sources and references in Version 2 of the BSM (BSM2), which only contains the ethanol pathway, although subsequent versions of the BSM contain multiple conversion pathways. The BSM2 contains over 12,000 total input values, with 506 distinct variables. Many of the variables are opportunities for the user to define scenarios, while others are simply used to initialize a stock, such as the initial number of biorefineries. However, around 35% of the distinct variables are defined by external sources, such as models or reports. The focus of this report is to provide insight into which sources are most influential in each area of the supply chain.

Lin, Y.; Newes, E.; Bush, B.; Peterson, S.; Stright, D.

2013-05-01T23:59:59.000Z

418

Plant design: Integrating Plant and Equipment Models  

SciTech Connect (OSTI)

Like power plant engineers, process plant engineers must design generating units to operate efficiently, cleanly, and profitably despite fluctuating costs for raw materials and fuels. To do so, they increasingly create virtual plants to enable evaluation of design concepts without the expense of building pilot-scale or demonstration facilities. Existing computational models describe an entire plant either as a network of simplified equipment models or as a single, very detailed equipment model. The Advanced Process Engineering Co-Simulator (APECS) project (Figure 5) sponsored by the U.S. Department of Energy's National Energy Technology Laboratory (NETL) seeks to bridge the gap between models by integrating plant modeling and equipment modeling software. The goal of the effort is to provide greater insight into the performance of proposed plant designs. The software integration was done using the process-industry standard CAPE-OPEN (Computer Aided Process Engineering–Open), or CO interface. Several demonstration cases based on operating power plants confirm the viability of this co-simulation approach.

Sloan, David (Alstrom Power); Fiveland, Woody (Alstrom Power); Zitney, S.E.; Osawe, Maxwell (Ansys, Inc.)

2007-08-01T23:59:59.000Z

419

Insights into Chemical Reactivity /  

E-Print Network [OSTI]

Modern Physical Organic Chemistry University Science Books:Modern Physical Organic Chemistry University Science Books:

Burke, Kathryn D.

2013-01-01T23:59:59.000Z

420

CUISINE AND INSIGHTS ON  

E-Print Network [OSTI]

from sustainably managed forests and controlled sources. ISSN 2200-6338 (Print) ISSN 2200-7628 (Online innovations and events. 6 SANDWICH SOLUTION How a giant 3D metal printer could help Australia's manufacturing www.hardiegrant.com.au PUBLISHER Keri Freeman EDITOR Helen Withycombe ART DIRECTOR Glenn Moffatt PRINT

Liley, David

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Looking Outside for Insights  

E-Print Network [OSTI]

% 0% 20% 40% 60% 80% 100% LM Sep '06 LM Sep '07 Improving Worsening Remaining the same 18% 14% 45% 58% 37% 28% 0% 20% 40% 60% 80% 100% LM Sep '06 LM Sep '07 Improving Worsening Remaining the same Getting the past year or two?" 7% 4% 44% 32% 49% 64% 0% 20% 40% 60% 80% 100% LM Sep '06 LM Sep '07 A lot A little

422

Cosmological Insights from Supernovae  

E-Print Network [OSTI]

While low-z Type Ia supernovae are used to measure the present rate of expansion of the Universe, high-z Type Ia measure its variation due to the cosmic matter-energy content. Results from those determinations imply a low matter density Universe with a non-zero cosmological constant (vacuum-energy component). The expansion rate of the Universe accelerates, according to these determinations. The validity of the Type Ia supernova approach for this cosmological research is addressed. An account is given of additional prospects to further investigate through supernovae what the Universe is made of. Those attempts range from constraining the large scale dark matter distribution to further test and interpret the presence of a vacuum energy component.

P. Ruiz-Lapuente

1998-10-26T23:59:59.000Z

423

Global Insight Energy Group  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997Environment >7,99 DiagramLearnOutlook Mary Novak

424

Diode laser welding of ABS: Experiments and process modeling  

E-Print Network [OSTI]

The laser beam weldability of acrylonitrile/butadiene/styrene (ABS) plates is determined by combining both experimental and theoretical aspects. In modeling the process, an optical model is used to determine how the laser beam is attenuated by the first material and to obtain the laser beam profile at the interface. Using this information as the input data to a thermal model, the evolution of the temperature field within the two components can be estimated. The thermal model is based on the first principles of heat transfer and utilizes the temperature variation laws of material properties. Corroborating the numerical results with the experimental results, some important insights concerning the fundamental phenomena that govern the process could be extracted. This approach proved to be an efficient tool in determining the weldability of polimeric materials and assures a significant reduction of time and costs with the experimental exploration.

Ilie, Mariana; Mattei, Simone; Cicala, Eugen; Stoica, Virgil; 10.1016/j.optlastec.2008.10.005

2010-01-01T23:59:59.000Z

425

Sensitivity analysis techniques for models of human behavior.  

SciTech Connect (OSTI)

Human and social modeling has emerged as an important research area at Sandia National Laboratories due to its potential to improve national defense-related decision-making in the presence of uncertainty. To learn about which sensitivity analysis techniques are most suitable for models of human behavior, different promising methods were applied to an example model, tested, and compared. The example model simulates cognitive, behavioral, and social processes and interactions, and involves substantial nonlinearity, uncertainty, and variability. Results showed that some sensitivity analysis methods create similar results, and can thus be considered redundant. However, other methods, such as global methods that consider interactions between inputs, can generate insight not gained from traditional methods.

Bier, Asmeret Brooke

2010-09-01T23:59:59.000Z

426

Modeling and Analysis of Scholar Mobility on Scientific Landscape  

E-Print Network [OSTI]

Scientific literature till date can be thought of as a partially revealed landscape, where scholars keep unveiling hidden knowledge by exploring novel research topics. How do scholars explore the scientific landscape, i.e., choose research topics to work on? We propose an agent-based model of topic mobility behavior where scholars migrate across research topics on the space of science following different strategies, seeking different utilities. We use this model to study whether strategies widely used in current scientific community can provide a balance between individual scientific success and the efficiency and diversity of the whole academic society. Through extensive simulations, we provide insights into the roles of different strategies, such as choosing topics according to research potential or the popularity. Our model provides a conceptual framework and a computational approach to analyze scholars' behavior and its impact on scientific production. We also discuss how such an agent-based modeling appr...

Ying, Qiu Fang; Chiu, Dah Ming

2015-01-01T23:59:59.000Z

427

Modeling Transformation  

E-Print Network [OSTI]

Modeling Transformation What does each step do? #12;Transformation Procedure #12;Transformation Procedure #12;Building Your Model Yarn = chromosomal DNA Beads - - - - - - - - - - - - - - Ribosomes #12;Add transformation solution Tube CaCl2 #12;Transformation solution: CaCl2

Rose, Michael R.

428

Analysis of methods and models for assessing the direct and indirect economic impacts of CO/sub 2/-induced environmental changes in the agricultural sector of the US economy  

SciTech Connect (OSTI)

The overall purpose of this research was to assist the US Department of Energy (DOE) in developing methods for assessing the direct and indirect economic impacts due to the effects of increases in the ambient concentration of CO/sub 2/ on agricultural production. First, a comprehensive literature search was undertaken to determine what types of models and methods have been developed, which could be effectively used to conduct assessments of the direct and indirect economic impacts of CO/sub 2/ buildup. Specific attention was focused upon models and methods for assessing the physical impacts of CO/sub 2/-induced environmental changes on crop yields; national and multi-regional agricultural sector models; and macroeconomic models of the US economy. The second task involved a thorough investigation of the research efforts being conducted by other public and private sector organizations in order to determine how more recent analytical methods being developed outside of DOE could be effectively integrated into a more comprehensive analysis of the direct economic impacts of CO/sub 2/ buildup. The third and final task involved synthesizing the information gathered in the first two tasks into a systematic framework for assessing the direct and indirect economic impacts of CO/sub 2/-induced environmental changes originating in the agricultural sector of the US economy. It is concluded that the direct economic impacts of CO/sub 2/ on the agricultural sector and the indirect economic impacts caused by spillover effects from agriculture to other sectors of the economy will be pervasive; however, the direction and magnitude of these impacts on producers and consumers cannot be determined a priori.

Callaway, J.M.; Cronin, F.J.; Currie, J.W.; Tawil, J.

1982-08-01T23:59:59.000Z

429

Disjoining Pressure and the Film-Height-Dependent Surface Tension of Thin Liquid Films: New Insight from Capillary Wave Fluctuations  

E-Print Network [OSTI]

In this paper we review simulation and experimental studies of thermal capillary wave fluctuations as an ideal means for probing the underlying disjoining pressure and surface tensions, and more generally, fine details of the Interfacial Hamiltonian Model. We discuss recent simulation results that reveal a film-height-dependent surface tension not accounted for in the classical Interfacial Hamiltonian Model. We show how this observation may be explained bottom-up from sound principles of statistical thermodynamics and discuss some of its implications.

Luis G. MacDowell; Jorge Benet; Nebil A. Katcho; Jose G. Palanco

2014-06-25T23:59:59.000Z

430

BUSINESS CYCLES, FISCAL STABILIZATION AND VERTICAL FOREIGN DIRECT INVESTMENT: ESSAYS IN INTERNATIONAL MACROECONOMICS  

E-Print Network [OSTI]

find labor market distortions to be crucial in accounting for the episode, suggesting that the policies of the time were well targeted and effective. The third chapter of my dissertation studies policy coordination in a two-country framework allowing...

Kersting, Erasmus K.

2010-01-16T23:59:59.000Z

431

Liberalizing Capital Flows in India: Financial Repression, Macroeconomic Policy and Gradual Reforms  

E-Print Network [OSTI]

2004], “Fiscal Policy in India: Lessons and Priorities,”analyses of fiscal policy in India include, Pinto andtaxes and regulatory policies in India and across the states

Kletzer, Kenneth

2004-01-01T23:59:59.000Z

432

Essays in Applied Macroeconomics: Asymmetric Price Adjustment, Exchange Rate and Treatment Effect  

E-Print Network [OSTI]

in weekly retail gasoline prices Chapter III discusses the relationship between fiscal deficit and exchange rate. Economic theory predicts that fiscal deficits can significantly affect real exchange rate movements, but existing empirical evidence reports...

Gu, Jingping

2009-05-15T23:59:59.000Z

433

Macroeconomic Theory MW 7:00 to 8:15 PM  

E-Print Network [OSTI]

Accounting 3. Saving and Investment 4. Price Level and Interest Rates 5. Employment and Unemployment Readings of Monetary Economics, September 1982. 3. Perron, "The Great Crash, the Oil Price Shock, and the Unit Root. Investment Demand 3. Saving Equals Investment C. Asset Markets 1. Demand for Money 2. Supply of Money 3

Ahmad, Sajjad

434

Macroeconomic Theory MW 5:30 to 6:45 PM  

E-Print Network [OSTI]

Accounting 3. Saving and Investment 4. Price Level and Interest Rates 5. Employment and Unemployment Readings of Monetary Economics, September 1982. 3. Perron, "The Great Crash, the Oil Price Shock, and the Unit Root. Investment Demand 3. Saving Equals Investment C. Asset Markets 1. Demand for Money 2. Supply of Money 3

Ahmad, Sajjad

435

PREDICTIVE MODELS  

SciTech Connect (OSTI)

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

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

1988-10-01T23:59:59.000Z

436

Modeling veterans healthcare administration disclosure processes : CY 2012 summary.  

SciTech Connect (OSTI)

As with other large healthcare organizations, medical adverse events at the Department of Veterans Affairs (VA) facilities can expose patients to unforeseen negative risks. VHA leadership recognizes that properly handled disclosure of adverse events can minimize potential harm to patients and negative consequences for the effective functioning of the organization. The work documented here seeks to help improve the disclosure process by situating it within the broader theoretical framework of issues management, and to identify opportunities for process improvement through modeling disclosure and reactions to disclosure. The computational model will allow a variety of disclosure actions to be tested across a range of incident scenarios. Our conceptual model will be refined in collaboration with domain experts, especially by continuing to draw on insights from VA Study of the Communication of Adverse Large-Scale Events (SCALE) project researchers.

Beyeler, Walter Eugene; DeMenno, Mercy B.; Finley, Patrick D.

2013-09-01T23:59:59.000Z

437

CIMS: A FRAMEWORK FOR INFRASTRUCTURE INTERDEPENDENCY MODELING AND ANALYSIS  

SciTech Connect (OSTI)

Today’s society relies greatly upon an array of complex national and international infrastructure networks such as transportation, utilities, telecommunication, and even financial networks. While modeling and simulation tools have provided insight into the behavior of individual infrastructure networks, a far less understood area is that of the interrelationships among multiple infrastructure networks including the potential cascading effects that may result due to these interdependencies. This paper first describes infrastructure interdependencies as well as presenting a formalization of interdependency types. Next the paper describes a modeling and simulation framework called CIMS© and the work that is being conducted at the Idaho National Laboratory (INL) to model and simulate infrastructure interdependencies and the complex behaviors that can result.

Donald D. Dudenhoeffer; May R. Permann; Milos Manic

2006-12-01T23:59:59.000Z

438

Learning Structural Changes of Gaussian Graphical Models in Controlled Experiments  

E-Print Network [OSTI]

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

Zhang, Bai

2012-01-01T23:59:59.000Z

439

MEASURING GALAXY STAR FORMATION RATES FROM INTEGRATED PHOTOMETRY: INSIGHTS FROM COLOR-MAGNITUDE DIAGRAMS OF RESOLVED STARS  

SciTech Connect (OSTI)

We use empirical star formation histories (SFHs), measured from Hubble-Space-Telescope-based resolved star color-magnitude diagrams, as input into population synthesis codes to model the broadband spectral energy distributions (SEDs) of 50 nearby dwarf galaxies (6.5 < log M{sub *}/M{sub Sun} < 8.5, with metallicities {approx}10% solar). In the presence of realistic SFHs, we compare the modeled and observed SEDs from the ultraviolet (UV) through near-infrared and assess the reliability of widely used UV-based star formation rate (SFR) indicators. In the FUV through i bands, we find that the observed and modeled SEDs are in excellent agreement. In the Spitzer 3.6 {mu}m and 4.5 {mu}m bands, we find that modeled SEDs systematically overpredict observed luminosities by up to {approx}0.2 dex, depending on treatment of the TP-AGB stars in the synthesis models. We assess the reliability of UV luminosity as a SFR indicator, in light of independently constrained SFHs. We find that fluctuations in the SFHs alone can cause factor of {approx}2 variations in the UV luminosities relative to the assumption of a constant SFH over the past 100 Myr. These variations are not strongly correlated with UV-optical colors, implying that correcting UV-based SFRs for the effects of realistic SFHs is difficult using only the broadband SED. Additionally, for this diverse sample of galaxies, we find that stars older than 100 Myr can contribute from <5%-100% of the present day UV luminosity, highlighting the challenges in defining a characteristic star formation timescale associated with UV emission. We do find a relationship between UV emission timescale and broadband UV-optical color, though it is different than predictions based on exponentially declining SFH models. Our findings have significant implications for the comparison of UV-based SFRs across low-metallicity populations with diverse SFHs.

Johnson, Benjamin D. [Institute d'Astrophysique de Paris, CNRS, UPMC, 98bis Bd Arago, F-75014 Paris (France); Weisz, Daniel R.; Dalcanton, Julianne J.; Johnson, L. C.; Williams, Benjamin F. [Department of Astronomy, Box 351580, University of Washington, Seattle, WA 98195 (United States); Dale, Daniel A. [Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071 (United States); Dolphin, Andrew E. [Raytheon, 1151 E. Hermans Road, Tucson, AZ 85756 (United States); Gil de Paz, Armando [CEI Campus Moncloa, UCM-UPM, Departamento de Astrofisica y CC. de la Atmosfera, Facultad de CC. Fisicas, Universidad Complutense de Madrid, Avda. Complutense s/n, E-28040 Madrid (Spain); Kennicutt, Robert C. Jr. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Lee, Janice C. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Skillman, Evan D. [Department of Astronomy, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455 (United States); Boquien, Mederic [Marseille Universite, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, F-13388 Marseille (France)

2013-07-20T23:59:59.000Z

440

OSPREY Model  

SciTech Connect (OSTI)

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

Veronica J. Rutledge

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "insight macroeconomic model" 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

Modeling and Diagnostics of Fuel Cell Porous Media for Improving Water Transport  

SciTech Connect (OSTI)

When a fuel cell is operating at high current density, water accumulation is a significant cause of performance and component degradation. Investigating the water transport inside the fuel cell is a challenging task due to opacity of the components, the randomness of the porous materials, and the difficulty in gain access to the interior for measurement due to the small dimensions of components. Numerical simulation can provide a good insight of the evolution of the water transport under different working condition. However, the validation of those simulations is remains an issue due the same experimental obstacles associated with in-situ measurements. The discussion herein will focus on pore-network modeling of the water transport on the PTL and the insights gained from simulations as well as in the validation technique. The implications of a recently published criterion to characterize PTL, based on percolation theory, and validate numerical simulation are discussed.

Allen, Jeff; M'edici, Ezequiel

2011-07-01T23:59:59.000Z

442

A Hierarchy of Linear Threshold Models for the Spread of Political Revolutions on Social Networks  

E-Print Network [OSTI]

We study a linear threshold agent-based model (ABM) for the spread of political revolutions on social networks using empirical network data. We propose new techniques for building a hierarchy of simplified ordinary differential equation (ODE) based models that aim to capture essential features of the ABM, including effects of the actual networks, and give insight in the parameter regime transitions of the ABM. We relate the ABM and the hierarchy of models to a population-level compartmental ODE model that we proposed previously for the spread of political revolutions [1], which is shown to be mathematically consistent with the proposed ABM and provides a way to analyze the global behaviour of the ABM. This consistency with the linear threshold ABM also provides further justification a posteriori for the compartmental model of [1]. Extending concepts from epidemiological modelling, we define a basic reproduction number $R_0$ for the linear threshold ABM and apply it to predict ABM behaviour on empirical networ...

Lang, John C

2015-01-01T23:59:59.000Z

443

User's manual for heat-pump seasonal-performance model (SPM) with selected parametric examples  

SciTech Connect (OSTI)

The Seasonal Performance Model (SPM) was developed to provide an accurate source of seasonal energy consumption and cost predictions for the evaluation of heat pump design options. The program uses steady state heat pump performance data obtained from manufacturers' or Computer Simulation Model runs. The SPM was originally developed in two forms - a cooling model for central air conditioners and heat pumps and a heating model for heat pumps. The original models have undergone many modifications, which are described, to improve the accuracy of predictions and to increase flexibility for use in parametric evaluations. Insights are provided into the theory and construction of the major options, and into the use of the available options and output variables. Specific investigations provide examples of the possible applications of the model. (LEW)

Not Available

1982-06-30T23:59:59.000Z

444

Comparisons of Statistical Multifragmentation and Evaporation Models for Heavy Ion Collisions  

E-Print Network [OSTI]

The results from ten statistical multifragmentation models have been compared with each other using selected experimental observables. Even though details in any single observable may differ, the general trends among models are similar. Thus these models and similar ones are very good in providing important physics insights especially for general properties of the primary fragments and the multifragmentation process. Mean values and ratios of observables are also less sensitive to individual differences in the models. In addition to multifragmentation models, we have compared results from five commonly used evaporation codes. The fluctuations in isotope yield ratios are found to be a good indicator to evaluate the sequential decay implementation in the code. The systems and the observables studied here can be used as benchmarks for the development of statistical multifragmentation models and evaporation codes.

Tsang, M B; Charity, R; Durand, D; Friedman, W A; Gulminelli, F; Lefèvre, A; Raduta, A H; Raduta, A R; Souza, S; Trautmann, W; Wada, R; Raduta, Ad.R.; Raduta, Al. H.

2006-01-01T23:59:59.000Z

445

Model development for household waste prevention behaviour  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer We model waste prevention behaviour using structure equation modelling. Black-Right-Pointing-Pointer We merge attitude-behaviour theories with wider models from environmental psychology. Black-Right-Pointing-Pointer Personal norms and perceived behaviour control are the main behaviour predictors. Black-Right-Pointing-Pointer Environmental concern, moral obligation and inconvenience are the main influence on the behaviour. Black-Right-Pointing-Pointer Waste prevention and recycling are different dimensions of waste management behaviour. - Abstract: Understanding waste prevention behaviour (WPB) could enable local governments and decision makers to design more-effective policies for reducing the amount of waste that is generated. By merging well-known attitude-behaviour theories with elements from wider models from environmental psychology, an extensive cognitive framework that provides new and valuable insights is developed for understanding the involvement of individuals in waste prevention. The results confirm the usefulness of the theory of planned behaviour and of Schwartz's altruistic behaviour model as bases for modelling participation in waste prevention. A more elaborate integrated model of prevention was shown to be necessary for the complete analysis of attitudinal aspects associated with waste prevention. A postal survey of 158 respondents provided empirical support for eight of 12 hypotheses. The proposed structural equation indicates that personal norms and perceived behaviour control are the main predictors and that, unlike the case of recycling, subjective norms have a weak influence on WPB. It also suggests that, since social norms have not presented a direct influence, WPB is likely to be influenced by a concern for the environment and the community as well by perceptions of moral obligation and inconvenience. Results also proved that recycling and waste prevention represent different dimensions of waste management behaviour requiring particular approaches to increase individuals' engagement in future policies.

Bortoleto, Ana Paula, E-mail: a.bortoleto@sheffield.ac.uk [Department of Urban Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Kurisu, Kiyo H.; Hanaki, Keisuke [Department of Urban Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)

2012-12-15T23:59:59.000Z

446

Multi-State Physics Models of Aging Passive Components in Probabilistic Risk Assessment  

SciTech Connect (OSTI)

Multi-state Markov modeling has proved to be a promising approach to estimating the reliability of passive components - particularly metallic pipe components - in the context of probabilistic risk assessment (PRA). These models consider the progressive degradation of a component through a series of observable discrete states, such as detectable flaw, leak and rupture. Service data then generally provides the basis for estimating the state transition rates. Research in materials science is producing a growing understanding of the physical phenomena that govern the aging degradation of passive pipe components. As a result, there is an emerging opportunity to incorporate these insights into PRA. This paper describes research conducted under the Risk-Informed Safety Margin Characterization Pathway of the Department of Energy’s Light Water Reactor Sustainability Program. A state transition model is described that addresses aging behavior associated with stress corrosion cracking in ASME Class 1 dissimilar metal welds – a component type relevant to LOCA analysis. The state transition rate estimates are based on physics models of weld degradation rather than service data. The resultant model is found to be non-Markov in that the transition rates are time-inhomogeneous and stochastic. Numerical solutions to the model provide insight into the effect of aging on component reliability.

Unwin, Stephen D.; Lowry, Peter P.; Layton, Robert F.; Heasler, Patrick G.; Toloczko, Mychailo B.

2011-03-13T23:59:59.000Z

447

Programming models  

SciTech Connect (OSTI)

A programming model is a set of software technologies that support the expression of algorithms and provide applications with an abstract representation of the capabilities of the underlying hardware architecture. The primary goals are productivity, portability and performance.

Daniel, David J [Los Alamos National Laboratory; Mc Pherson, Allen [Los Alamos National Laboratory; Thorp, John R [Los Alamos National Laboratory; Barrett, Richard [SNL; Clay, Robert [SNL; De Supinski, Bronis [LLNL; Dube, Evi [LLNL; Heroux, Mike [SNL; Janssen, Curtis [SNL; Langer, Steve [LLNL; Laros, Jim [SNL

2011-01-14T23:59:59.000Z

448

Modeling Quality Information within Business Process Models  

E-Print Network [OSTI]

Modeling Quality Information within Business Process Models Robert Heinrich, Alexander Kappe. Business process models are a useful means to document information about structure and behavior literature and tool survey on modeling quality information within business process models. Keywords: Business

Paech, Barbara

449

Harmonic polynomials for expanding the fluctuations of the Cosmic Microwave Background: The Poincare and the 3-sphere model  

E-Print Network [OSTI]

Fluctuations of the Cosmic Microwave Background CMB are observed by the WMAP. When expanded into the harmonic eigenmodes of the space part of a cosmological model, they provide insight into the large-scale topology of space. All harmonic polynomials on the multiply connected dodecahedral Poincare space are constructed. Strong and specific selection rules are given by comparing the polynomials to those on the 3-sphere, its simply connected cover.

Peter Kramer

2007-01-01T23:59:59.000Z

450

PREDICTIVE MODELS  

SciTech Connect (OSTI)

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

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

1986-12-01T23:59:59.000Z

451

Beyond the Cosmological Standard Model  

E-Print Network [OSTI]

After a decade and a half of research motivated by the accelerating universe, theory and experiment have a reached a certain level of maturity. The development of theoretical models beyond \\Lambda, or smooth dark energy, often called modified gravity, has led to broader insights into a path forward, and a host of observational and experimental tests have been developed. In this review we present the current state of the field and describe a framework for anticipating developments in the next decade. We identify the guiding principles for rigorous and consistent modifications of the standard model, and discuss the prospects for empirical tests. We begin by reviewing attempts to consistently modify Einstein gravity in the infrared, focusing on the notion that additional degrees of freedom introduced by the modification must screen themselves from local tests of gravity. We categorize screening mechanisms into three broad classes: mechanisms which become active in regions of high Newtonian potential, those in which first derivatives become important, and those for which second derivatives are important. Examples of the first class, such as f(R) gravity, employ the familiar chameleon or symmetron mechanisms, whereas examples of the last class are galileon and massive gravity theories, employing the Vainshtein mechanism. In each case, we describe the theories as effective theories. We describe experimental tests, summarizing laboratory and solar system tests and describing in some detail astrophysical and cosmological tests. We discuss future tests which will be sensitive to different signatures of new physics in the gravitational sector. Parts that are more relevant to theorists vs. observers/experimentalists are clearly indicated, in the hope that this will serve as a useful reference for both audiences, as well as helping those interested in bridging the gap between them.

Austin Joyce; Bhuvnesh Jain; Justin Khoury; Mark Trodden

2014-12-15T23:59:59.000Z

452

Improving the Usability of Integrated Assessment for Adaptation Practice: Insights from the U.S. Southeast Energy Sector  

SciTech Connect (OSTI)

Energy systems comprise a key sector of the U.S. economy, and one that has been identified as potentially vulnerable to the effects of climate variability and change. However, understanding of adaptation processes in energy companies and private entities more broadly is limited. It is unclear, for example, the extent to which energy companies are well-served by existing knowledge and tools emerging from the impacts, adaptation and vulnerability (IAV) and integrated assessment modeling (IAM) communities and/or what experiments, analyses, and model results have practical utility for informing adaptation in the energy sector. As part of a regional IAM development project, we investigated available evidence of adaptation processes in the energy sector, with a particular emphasis on the U.S. Southeast and Gulf Coast region. A mixed methods approach of literature review and semi-structured interviews with key informants from energy utilities was used to compare existing knowledge from the IAV community with that of regional stakeholders. That comparison revealed that much of the IAV literature on the energy sector is climate-centric and therefore disconnected from the more integrated decision-making processes and institutional perspectives of energy utilities. Increasing the relevance of research and assessment for the energy sector will necessitate a greater investment in integrated assessment and modeling efforts that respond to practical decision-making needs as well as greater collaboration between energy utilities and researchers in the design, execution, and communication of those efforts.

de Bremond, Ariane; Preston, Benjamin; Rice, Jennie S.

2014-10-01T23:59:59.000Z

453

Policy modeling for industrial energy use  

SciTech Connect (OSTI)

The international workshop on Policy Modeling for Industrial Energy Use was jointly organized by EETA (Professional Network for Engineering Economic Technology Analysis) and INEDIS (International Network for Energy Demand Analysis in the Industrial Sector). The workshop has helped to layout the needs and challenges to include policy more explicitly in energy-efficiency modeling. The current state-of-the-art models have a proven track record in forecasting future trends under conditions similar to those faced in the recent past. However, the future of energy policy in a climate-restrained world is likely to demand different and additional services to be provided by energy modelers. In this workshop some of the international models used to make energy consumption forecasts have been discussed as well as innovations to enable the modeling of policy scenarios. This was followed by the discussion of future challenges, new insights in the data needed to determine the inputs into energy model s, and methods to incorporate decision making and policy in the models. Based on the discussion the workshop participants came to the following conclusions and recommendations: Current energy models are already complex, and it is already difficult to collect the model inputs. Hence, new approaches should be transparent and not lead to extremely complex models that try to ''do everything''. The model structure will be determined by the questions that need to be answered. A good understanding of the decision making framework of policy makers and clear communication on the needs are essential to make any future energy modeling effort successful. There is a need to better understand the effects of policy on future energy use, emissions and the economy. To allow the inclusion of policy instruments in models, evaluation of programs and instruments is essential, and need to be included in the policy instrument design. Increased efforts are needed to better understand the effects of innovative (no n-monetary) policy instruments through evaluation and to develop approaches to model both conventional and innovative policies. The explicit modeling of barriers and decision making in the models seems a promising way to enable modeling of conventional and innovative policies. A modular modeling approach is essential to not only provide transparency, but also to use the available resources most effectively and efficiently. Many large models have been developed in the past, but have been abandoned after only brief periods of use. A development path based on modular building blocks needs the establishment of a flexible but uniform modeling framework. The leadership of international agencies and organizations is essential in the establishment of such a framework. A preference is given for ''softlinks'' between different modules and models, to increase transparency and reduce complexity. There is a strong need to improve the efficiency of data collection and interpretation efforts to produce reliable model inputs. The workshop participants support the need for the establishment of an (in-)formal exchanges of information, as well as modeling approaches. The development of an informal network of research institutes and universities to help build a common dataset and exchange ideas on specific areas is proposed. Starting with an exchange of students would be a relative low-cost way to start such collaboration. It would be essential to focus on specific topics. It is also essential to maintain means of regular exchange of ideas between researchers in the different focus points.

Worrell, Ernst; Park, Hi-Chun; Lee, Sang-Gon; Jung, Yonghun; Kato, Hiroyuki; Ramesohl, Stephan; Boyd, Gale; Eichhammer, Wolfgang; Nyboer, John; Jaccard, Mark; Nordqvist, Joakim; Boyd, Christopher; Klee, Howard; Anglani, Norma; Biermans, Gijs

2003-03-01T23:59:59.000Z

454

Model systems This year's model  

E-Print Network [OSTI]

@biochem.wisc.edu RTR received ScB degrees in chemistry and biology from the Massachusetts Institute of Technology that initially inspired the chemical simplification. In such cases, the later stages of model studies can seem

Raines, Ronald T.

455

Hybrid gamma Doradus - delta Scuti pulsators: New insights into the physics of the oscillations from Kepler observations  

E-Print Network [OSTI]

Observations of the pulsations of stars can be used to infer their interior structure and test theoretical models. The main sequence $\\gamma$ Doradus (Dor) and $\\delta$ Scuti (Sct) stars with masses 1.2-2.5 $M_{\\sun}$ are particularly useful for these studies. The $\\gamma$ Dor stars pulsate in high-order $g$ modes with periods of order 1 day, driven by convective blocking at the base of their envelope convection zone. The $\\delta$ Sct stars pulsate in low-order $g$ and $p$ modes with periods of order 2 hours, driven by the $\\kappa$ mechanism operating in the Heii ionization zone. Theory predicts an overlap region in the Hertzsprung-Russell diagram between instability regions, where 'hybrid' stars pulsating in both types of modes should exist. The two types of modes with properties governed by different portions of the stellar interior provide complementary model constraints. Among the known $\\gamma$ Dor and $\\delta$ Sct stars, only four have been confirmed as hybrids. Now, analysis of combined Quarter 0 and Q...

Grigahcene, A; Balona, L; Catanzaro, G; Daszynska-Daszkiewicz, J; Guzik, J A; Handler, G; Houdek, G; Kurtz, D W; Marconi, M; Monteiro, M J P F G; Moya, A; Pigulski, A; Ripepi, V; Suarez, J -C; Uytterhoeven, K; Borucki, W J; Brown, T M; Christensen-Dalsgaard, J; Gilliland, R L; Jenkins, J M; Kjeldsen, H; Koch, D; Bradley, P; Breger, M; Di Criscienzo, M; Dupret, M -A; Garcia, R A; Hernandez, A Garcia; Jackiewicz, J; Kaiser, A; Lehmann, H; Marin-Ruiz, S; Mathias, P; Molenda-Zakowicz, J; Nemec, J M; Nuspl, J; Paparo, M; Roth, M; Szabo, R; Suran, M D; Ventura, R

2010-01-01T23:59:59.000Z

456

Modeling the role of bacteria in leaching of low-grade ores  

SciTech Connect (OSTI)

A robustious structural model is developed to describe the role of bacteria in the leaching process of low-grade ores under conditions controlled by intraparticle diffusion. The main impetus behind developing this model is to provide an insight into such systems, together with a suitable framework for interpreting experimental data. The model is derived in detail with respect to reaction chemistry and the role of bacteria in catalyzing these reactions, specifically the synergism of chemistry, physics and biology in determining the overall behavior of the system. The model is used to simulate the atmospheric oxidation of iron disulfide contained in porous solids in the presence of Thiobacillus ferrooxidans (T. ferrooxidans). The experimental data are predicted well by the model, which demonstrates its applicability and supports the view that the rate of intraparticle diffusion is the controlling mechanism for this system.

Batarseh, K.I.; Stiller, A.H. (West Virginia Univ., Morgantown, WV (United States). Dept. of Chemical Engineering)

1994-10-01T23:59:59.000Z

457

Challenges in Modeling the Degradation of Ceramic Waste Forms  

SciTech Connect (OSTI)

We identify the state of the art, gaps in current understanding, and key research needs in the area of modeling the long-term degradation of ceramic waste forms for nuclear waste disposition. The directed purpose of this report is to define a roadmap for Waste IPSC needs to extend capabilities of waste degradation to ceramic waste forms, which overlaps with the needs of the subconsinuum scale of FMM interests. The key knowledge gaps are in the areas of (i) methodology for developing reliable interatomic potentials to model the complex atomic-level interactions in waste forms; (ii) characterization of water interactions at ceramic surfaces and interfaces; and (iii) extension of atomic-level insights to the long time and distance scales relevant to the problem of actinide and fission product immobilization.

Devanathan, Ramaswami; Gao, Fei; Sun, Xin

2011-09-01T23:59:59.000Z

458

The bistable brain: a neuronal model with symbiotic interactions  

E-Print Network [OSTI]

In general, the behavior of large and complex aggregates of elementary components can not be understood nor extrapolated from the properties of a few components. The brain is a good example of this type of networked systems where some patterns of behavior are observed independently of the topology and of the number of coupled units. Following this insight, we have studied the dynamics of different aggregates of logistic maps according to a particular {\\it symbiotic} coupling scheme that imitates the neuronal excitation coupling. All these aggregates show some common dynamical properties, concretely a bistable behavior that is reported here with a certain detail. Thus, the qualitative relationship with neural systems is suggested through a naive model of many of such networked logistic maps whose behavior mimics the waking-sleeping bistability displayed by brain systems. Due to its relevance, some regions of multistability are determined and sketched for all these logistic models.

Ricardo Lopez-Ruiz; Daniele Fournier-Prunaret

2012-08-01T23:59:59.000Z

459

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

E-Print Network [OSTI]

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

Fedor Herbut

2008-08-23T23:59:59.000Z

460

Modelling osteomyelitis  

E-Print Network [OSTI]

13 of 14 12. Paoletti N, Lio P, Merelli E, Viceconti M: Multi-level Computational Modeling and Quantitative Analysis of Bone Remodeling. IEEE/ACM Transactions on Computational Biology and Bioinformatics 2012, 99(PrePrints). 13. Geris L, Vander Sloten...

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

2012-09-07T23:59:59.000Z

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461

Criticality Model  

SciTech Connect (OSTI)

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

A. Alsaed

2004-09-14T23:59:59.000Z

462

Sandia National Laboratories: Modeling  

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

Mark Boslough Featured in NOVA Special about the Chelyabinsk Meteor On April 3, 2013, in Capabilities, Computational Modeling & Simulation, Modeling, Modeling, Modeling & Analysis,...

463

R&D for computational cognitive and social models : foundations for model evaluation through verification and validation (final LDRD report).  

SciTech Connect (OSTI)

Sandia National Laboratories is investing in projects that aim to develop computational modeling and simulation applications that explore human cognitive and social phenomena. While some of these modeling and simulation projects are explicitly research oriented, others are intended to support or provide insight for people involved in high consequence decision-making. This raises the issue of how to evaluate computational modeling and simulation applications in both research and applied settings where human behavior is the focus of the model: when is a simulation 'good enough' for the goals its designers want to achieve? In this report, we discuss two years' worth of review and assessment of the ASC program's approach to computational model verification and validation, uncertainty quantification, and decision making. We present a framework that extends the principles of the ASC approach into the area of computational social and cognitive modeling and simulation. In doing so, we argue that the potential for evaluation is a function of how the modeling and simulation software will be used in a particular setting. In making this argument, we move from strict, engineering and physics oriented approaches to V&V to a broader project of model evaluation, which asserts that the systematic, rigorous, and transparent accumulation of evidence about a model's performance under conditions of uncertainty is a reasonable and necessary goal for model evaluation, regardless of discipline. How to achieve the accumulation of evidence in areas outside physics and engineering is a significant research challenge, but one that requires addressing as modeling and simulation tools move out of research laboratories and into the hands of decision makers. This report provides an assessment of our thinking on ASC Verification and Validation, and argues for further extending V&V research in the physical and engineering sciences toward a broader program of model evaluation in situations of high consequence decision-making.

Slepoy, Alexander; Mitchell, Scott A.; Backus, George A.; McNamara, Laura A.; Trucano, Timothy Guy

2008-09-01T23:59:59.000Z

464

In Silico Modeling of Geobacter Species.  

SciTech Connect (OSTI)

This project employed a combination of in silico modeling and physiological studies to begin the construction of models that could predict the activity of Geobacter species under different environmental conditions. A major accomplishment of the project was the development of the first genome-based models of organisms known environmental relevance. This included the modeling of two Geobacter species and two species of Pelobacter. Construction of these models required increased sophistication in the annotation of the original draft genomes as well as collection of physiological data on growth yields, cell composition, and metabolic reactions. Biochemical studies were conducted to determine whether proposed enzymatic reactions were in fact expressed. During this process we developed an Automodel Pipeline process to accelerate future model development of other environmentally relevant organisms by using bioinformatics techniques to leverage predicted protein sequences and the Genomatica database containing a collection of well-curated metabolic models. The Automodel Pipeline was also used for iterative updating of the primary Geobacter model of G. sulfurreducens to expand metabolic functions or to add alternative pathways. Although each iteration of the model does not lead to another publication, it is an invaluable resource for hypothesis development and evaluation of experimental data. In order to develop a more accurate G. sulfurreducens model, a series of physiological studies that could be analyzed in the context of the model were carried out. For example, previous field trials of in situ uranium bioremediation demonstrated that Geobacter species face an excess of electron donor and a limitation of electron acceptor near the point of acetate injection into the groundwater. Therefore, a model-based analysis of electron acceptor limitation physiology was conducted and model predictions were compared with growth observed in chemostats. Iterative studies resulted in the model accurately predicting acetate oxidation and electron acceptor reduction. The model also predicted that G. sulfurreducens must release hydrogen under electron-accepting conditions in order to maintain charge and electron balance. This prediction was borne out by subsequent hydrogen measurements. Furthermore, changes in gene expression were consistent with model predictions of flux changes around central metabolism. The model revealed multiple redundant pathways in central metabolism suggesting an apparent versatility unusual in microbial metabolism. The computational analysis led to the identification of 32 reactions that participated in eight sets of redundant pathways. The computational results guided the design of strains with mutations in key reactions to elucidate the role of the alternate pathways and obtain information on their physiological function. A total of seven strains with mutations in genes encoding five metabolic reactions were constructed and their phenotypes analyzed in 12 different environments. This analysis revealed several interesting insights on the role of the apparent redundant pathways. 13C labeling approaches were developed for further elucidation of metabolic pathways with model-driven interpretation. For example, the model was used to calculate the optimal acetate 13C labeling ratio for distinguishing flux through various pathways based on amino acid isotopomer distributions. With this method it was possible to elucidate the pathways for amino acid biosynthesis. Surprisingly, the labeling pattern of isoleucine deviated significantly from what was predicted by the metabolic reconstruction. Detailed analysis of the labeling patterns with the model led to the discovery that there are two pathways for leucine biosynthesis, including a novel citramalate pathway that was subsequently confirmed with biochemical analysis. In summary, the combined computational and experimental studies have been instrumental in further characterizing the central metabolism of members of the Geobacteraceae. Furthermore, the methods developed in these

Lovley, Derek, R.

2008-01-29T23:59:59.000Z

465

Insights into gas heating and cooling in the disc of NGC 891 from Herschel far-infrared spectroscopy  

E-Print Network [OSTI]

We present Herschel PACS and SPIRE spectroscopy of the most important far-infrared cooling lines in the nearby edge-on spiral galaxy, NGC 891: [CII] 158 $\\mu$m, [NII] 122, 205 $\\mu$m, [OI] 63, 145 $\\mu$m, and [OIII] 88 $\\mu$m. We find that the photoelectric heating efficiency of the gas, traced via the ([CII]+[OII]63)/$F_{\\mathrm{TIR}}$ ratio, varies from a mean of 3.5$\\times$10$^{-3}$ in the centre up to 8$\\times$10$^{-3}$ at increasing radial and vertical distances in the disc. A decrease in ([CII]+[OII]63)/$F_{\\mathrm{TIR}}$ but constant ([CII]+[OI]63)/$F_{\\mathrm{PAH}}$ with increasing FIR colour suggests that polycyclic aromatic hydrocarbons (PAHs) may become important for gas heating in the central regions. We compare the observed flux of the FIR cooling lines and total IR emission with the predicted flux from a PDR model to determine the gas density, surface temperature and the strength of the incident far-ultraviolet (FUV) radiation field, $G_{0}$. Resolving details on physical scales of ~0.6 kpc, a p...

Hughes, T M; Schirm, M R P; Parkin, T J; De Looze, I; Wilson, C D; Bendo, G J; Baes, M; Fritz, J; Boselli, A; Cooray, A; Cormier, D; Karczewski, O ?; Lebouteiller, V; Lu, N; Madden, S C; Spinoglio, L; Viaene, S

2014-01-01T23:59:59.000Z

466

Comment on 'New Insights in the Electrocatalytic Proton Reduction and Hydrogen Oxidation by Bioinspired Catalysts: A DFT Investigation'  

SciTech Connect (OSTI)

In the title paper, Vetere et al. reported a computational investigation of the mechanism of oxidation of H2 / proton reduction using a model nickel complex for nickel-based electrocatalysts with cyclic phosphorous ligands incorporating pendant amines. These catalysts are attracting considerable attention owing to their high turn-over rates and relatively low overpotentials. These authors interpreted the results of their calculations as evidence for a symmetric bond breaking (forming) of H2 directly to (from) two protonated amines in concert with a 2-electron reduction of the Ni(II) site to form a Ni(0) di-proton state. We show here that this interpretation is erroneous as we report the structure of an heterolytic cleavage transition state consistent with the presence of the Ni(II) center acting as a Lewis acid and of the pendant amines acting as Lewis bases. We determined the associated intrinsic reaction coordinate (IRC) pathway connecting the di-hydrogen (?2-H2) adduct and a hydride-proton state. We also characterize differently the nature of the transition state reported by these authors. H2 oxidation / proton reduction with this class of catalysts is a heterolytic process.

Dupuis, Michel; Chen, Shentan; Raugei, Simone; DuBois, Daniel L.; Bullock, R. Morris

2011-05-12T23:59:59.000Z

467

Insights into MHC class I peptide loading from the structure of the Tapasin-ERp57 thiol oxidoreductase heterodimer  

SciTech Connect (OSTI)

Tapasin is a glycoprotein critical for loading major histocompatibility complex (MHC) class I molecules with high-affinity peptides. It functions within the multimeric peptide-loading complex (PLC) as a disulfide-linked, stable heterodimer with the thiol oxidoreductase ERp57, and this covalent interaction is required to support optimal PLC activity. Here, we present the 2.6 {angstrom} resolution structure of the tapasin-ERp57 core of the PLC. The structure revealed that tapasin interacts with both ERp57 catalytic domains, accounting for the stability of the heterodimer, and provided an example of a protein disulfide isomerase family member interacting with substrate. Mutational analysis identified a conserved surface on tapasin that interacted with MHC class I molecules and was critical for peptide loading and editing functions of the tapasin-ERp57 heterodimer. By combining the tapasin-ERp57 structure with those of other defined PLC components, we present a molecular model that illuminates the processes involved in MHC class I peptide loading.

Dong, G.; Wearsch, P.A.; Peaper, D.R.; Cresswell, P.; Reinisch, K.M.; (Yale-MED)

2009-03-02T23:59:59.000Z

468

Insights from the Outskirts: Chemical and Dynamical Properties in the outer Parts of the Fornax Dwarf Spheroidal Galaxy  

E-Print Network [OSTI]

We present radial velocities and [Fe/H] abundances for 340 stars in the Fornax dwarf spheroidal from R~16,000 spectra. The targets have been obtained in the outer parts of the galaxy, a region which has been poorly studied before. Our sample shows a wide range in [Fe/H], between -0.5 and -3.0 dex, in which we detect three subgroups. Removal of stars belonging to the most metal-rich population produces a truncated metallicity distribution function that is identical to Sculptor, indicating that these systems have shared a similar early evolution, only that Fornax experienced a late, intense period of star formation (SF). The derived age-metallicity relation shows a fast increase in [Fe/H] at early ages, after which the enrichment flattens significantly for stars younger than ~8 Gyr. Additionally, the data indicate a strong population of stars around 4 Gyr, followed by a second rapid enrichment in [Fe/H]. A leaky-box chemical enrichment model generally matches the observed relation but does not predict a signifi...

Hendricks, Benjamin; Walker, Matthew; Johnson, Christian I; Penarrubia, Jorge; Gilmore, Gerard

2014-01-01T23:59:59.000Z

469

InSight: RIVIER ACADEMIC JOURNAL, VOLUME 5, NUMBER 2, FALL 2009 Copyright 2009 by Daniel Szilagyi, Arti Sood and Tejinder Singh. Published by Rivier College, with permission. 1  

E-Print Network [OSTI]

InSight: RIVIER ACADEMIC JOURNAL, VOLUME 5, NUMBER 2, FALL 2009 Copyright © 2009 by Daniel Szilagyi Szilagyi*, Arti Sood** and Tejinder Singh§ M.S. in Computer Science Program, Rivier College #12;Daniel Szilagyi, Arti Sood, and Tejinder Singh 2 Service Providers (ISPs). The ability to act as proxy server

Riabov, Vladimir V.

470

The Insights Series is co-edited by Jonathan Hiskey, Mitchell A. Seligson and Elizabeth J. Zechmeister with administrative, technical, and intellectual support from the LAPOP group at Vanderbilt.  

E-Print Network [OSTI]

.AmericasBarometer.org AmericasBarometer Insights: 2013 Number 93 Prosperity and Protest in Brazil: The Wave of the FutureBarometer Survey indicate that the current protests in Brazil are truly unprecedented in the country's recent and disenchantment with government performance that have created an environment ripe for the emergence of contentious

Palmeri, Thomas

471

Ertek, G., Tun, M.M., Kurtaraner, E., Kebude, D., 2012, 'Insights into the Efficiencies of On-Shore Wind Turbines: A Data-Centric Analysis', INISTA 2012 Conference. July 2-4, 2012, Trabzon,  

E-Print Network [OSTI]

-Shore Wind Turbines: A Data-Centric Analysis', INISTA 2012 Conference. July 2-4, 2012, Trabzon, Turkey://research.sabanciuniv.edu. Insights into the Efficiencies of On-Shore Wind Turbines: A Data-Centric Analysis Gürdal Ertek, Murat University Istanbul, Turkey Abstract--Literature on renewable energy alternative of wind turbines does

Yanikoglu, Berrin

472

Insights into the Molecular Activation Mechanism of the RhoA-specific Guanine Nucleotide Exchange Factor, PDZRhoGEF  

SciTech Connect (OSTI)

PDZRhoGEF (PRG) belongs to a small family of RhoA-specific nucleotide exchange factors that mediates signaling through select G-protein-coupled receptors via G{alpha}{sub 12/13} and activates RhoA by catalyzing the exchange of GDP to GTP. PRG is a multidomain protein composed of PDZ, regulators of G-protein signaling-like (RGSL), Dbl-homology (DH), and pleckstrin-homology (PH) domains. It is autoinhibited in cytosol and is believed to undergo a conformational rearrangement and translocation to the membrane for full activation, although the molecular details of the regulation mechanism are not clear. It has been shown recently that the main autoregulatory elements of PDZRhoGEF, the autoinhibitory 'activation box' and the 'GEF switch,' which is required for full activation, are located directly upstream of the catalytic DH domain and its RhoA binding surface, emphasizing the functional role of the RGSL-DH linker. Here, using a combination of biophysical and biochemical methods, we show that the mechanism of PRG regulation is yet more complex and may involve an additional autoinhibitory element in the form of a molten globule region within the linker between RGSL and DH domains. We propose a novel, two-tier model of autoinhibition where the activation box and the molten globule region act synergistically to impair the ability of RhoA to bind to the catalytic DH-PH tandem. The molten globule region and the activation box become less ordered in the PRG-RhoA complex and dissociate from the RhoA-binding site, which may constitute a critical step leading to PRG activation.

Bielnicki, Jakub A.; Shkumatov, Alexander V.; Derewenda, Urszula; Somlyo, Avril V.; Svergun, Dmitri I.; Derewenda, Zygmunt S. (EMBL); (UV)

2012-10-09T23:59:59.000Z

473

Noncommutative Standard Model: Model Building  

E-Print Network [OSTI]

A noncommutative version of the usual electro-weak theory is constructed. We discuss how to overcome the two major problems: 1) although we can have noncommutative U(n) (which we denote by $U_{\\star}(n)$) gauge theory we cannot have noncommutative SU(n) and 2) the charges in noncommutative QED are quantized to just $0, \\pm 1$. We show how the problem with charge quantization, as well as with the gauge group, can be resolved by taking $U_{\\star}(3)\\times U_{\\star}(2)\\times U_{\\star}(1)$ gauge group and reducing the extra U(1) factors in an appropriate way. Then we proceed with building the noncommutative version of the standard model by specifying the proper representations for the entire particle content of the theory, the gauge bosons, the fermions and Higgs. We also present the full action for the noncommutative Standard Model (NCSM). In addition, among several peculiar features of our model, we address the {\\it inherent} CP violation and new neutrino interactions.

M. Chaichian; P. Presnajder; M. M. Sheikh-Jabbari; A. Tureanu

2003-08-12T23:59:59.000Z

474

Preliminary Phase Field Computational Model Development  

SciTech Connect (OSTI)

This interim report presents progress towards the development of meso-scale models of magnetic behavior that incorporate microstructural information. Modeling magnetic signatures in irradiated materials with complex microstructures (such as structural steels) is a significant challenge. The complexity is addressed incrementally, using the monocrystalline Fe (i.e., ferrite) film as model systems to develop and validate initial models, followed by polycrystalline Fe films, and by more complicated and representative alloys. In addition, the modeling incrementally addresses inclusion of other major phases (e.g., martensite, austenite), minor magnetic phases (e.g., carbides, FeCr precipitates), and minor nonmagnetic phases (e.g., Cu precipitates, voids). The focus of the magnetic modeling is on phase-field models. The models are based on the numerical solution to the Landau-Lifshitz-Gilbert equation. From the computational standpoint, phase-field modeling allows the simulation of large enough systems that relevant defect structures and their effects on functional properties like magnetism can be simulated. To date, two phase-field models have been generated in support of this work. First, a bulk iron model with periodic boundary conditions was generated as a proof-of-concept to investigate major loop effects of single versus polycrystalline bulk iron and effects of single non-magnetic defects. More recently, to support the experimental program herein using iron thin films, a new model was generated that uses finite boundary conditions representing surfaces and edges. This model has provided key insights into the domain structures observed in magnetic force microscopy (MFM) measurements. Simulation results for single crystal thin-film iron indicate the feasibility of the model for determining magnetic domain wall thickness and mobility in an externally applied field. Because the phase-field model dimensions are limited relative to the size of most specimens used in experiments, special experimental methods were devised to create similar boundary conditions in the iron films. Preliminary MFM studies conducted on single and polycrystalline iron films with small sub-areas created with focused ion beam have correlated quite well qualitatively with phase-field simulations. However, phase-field model dimensions are still small relative to experiments thus far. We are in the process of increasing the size of the models and decreasing specimen size so both have identical dimensions. Ongoing research is focused on validation of the phase-field model. Validation is being accomplished through comparison with experimentally obtained MFM images (in progress), and planned measurements of major hysteresis loops and first order reversal curves. Extrapolation of simulation sizes to represent a more stochastic bulk-like system will require sampling of various simulations (i.e., with single non-magnetic defect, single magnetic defect, single grain boundary, single dislocation, etc.) with distributions of input parameters. These outputs can then be compared to laboratory magnetic measurements and ultimately to simulate magnetic Barkhausen noise signals.

Li, Yulan; Hu, Shenyang Y.; Xu, Ke; Suter, Jonathan D.; McCloy, John S.; Johnson, Bradley R.; Ramuhalli, Pradeep

2014-12-15T23:59:59.000Z

475

Autonomie Model  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top Five EERE BlogAttachmentFlash2011-21 AuditInsulated CladdingofofAutonomie Model

476

Models Datasets  

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: VegetationEquipment SurfacesResource Program PreliminaryA3,0StatementsMixingAssessing8 MayModels-Datasets

477

ISDAC Modeling  

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. | EMSLthe U.S.;2cSupercomputing: TheModeling

478

A Review of the PSA Model Truncation Convergence Issues at Some ENS Plants  

SciTech Connect (OSTI)

This study provides the insights gained from the Probabilistic Safety Assessment (PSA) model update of several Entergy Nuclear South (ENS) plants with respect to truncation convergence based on the limited guidance on the issue in the industry. The industry rule of thumb, the ASME and NRC guidance and requirements on the subject have been reviewed. The recent model updates performed at some of the ENS plants (River Bend, ANO 1 and 2) considered these criteria. Based on the current criteria used in the industry for truncation convergence, the recent PSA model update results for the River Bend Station (RBS) and ANO-1 are not converging even at a low truncation limit of 1E-11/reactor-year (yr). Many improvements were introduced in the recent model updates and convergence was expected at higher truncation values. This paper discusses the issues identified that are related to the convergence of the PSA results at low truncation limits. (author)

Yilmaz, Fatma [Entergy Nuclear South (United States)

2006-07-01T23:59:59.000Z

479

ab initio Electronic Transport Model with Explicit Solution to the Linearized Boltzmann Transport Equation  

E-Print Network [OSTI]

Accurate models of carrier transport are essential for describing the electronic properties of semiconductor materials. To the best of our knowledge, the current models following the framework of the Boltzmann transport equation (BTE) either rely heavily on experimental data (i.e., semi-empirical), or utilize simplifying assumptions, such as the constant relaxation time approximation (BTE-cRTA). While these models offer valuable physical insights and accurate calculations of transport properties in some cases, they often lack sufficient accuracy -- particularly in capturing the correct trends with temperature and carrier concentration. We present here a general transport model for calculating low-field electrical drift mobility and Seebeck coefficient of n-type semiconductors, by explicitly considering all relevant physical phenomena (i.e. elastic and inelastic scattering mechanisms). We first rewrite expressions for the rates of elastic scattering mechanisms, in terms of ab initio properties, such as the ban...

Faghaninia, Alireza; Lo, Cynthia S

2015-01-01T23:59:59.000Z

480

Preliminary performance assessment for the Waste Isolation Pilot Plant, December 1992. Volume 3, Model parameters: Sandia WIPP Project  

SciTech Connect (OSTI)

This volume documents model parameters chosen as of July 1992 that were used by the Performance Assessment Department of Sandia National Laboratories in its 1992 preliminary performance assessment of the Waste Isolation Pilot Plant (WIPP). Ranges and distributions for about 300 modeling parameters in the current secondary data base are presented in tables for the geologic and engineered barriers, global materials (e.g., fluid properties), and agents that act upon the WIPP disposal system such as climate variability and human-intrusion boreholes. The 49 parameters sampled in the 1992 Preliminary Performance Assessment are given special emphasis with tables and graphics that provide insight and sources of data for each parameter.

Not Available

1992-12-29T23:59:59.000Z

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481

Insights into Stabilization of the 99TcVO Core for Synthesis of 99TcVO Compounds  

SciTech Connect (OSTI)

Synthesis of technetium-99 (99Tc; t1/2: 2.1 105 years, max: 253 keV) materials is of importance in studies of the nuclear fuel cycle where Tc is a major fission product (6percent thermal yield from 235U and 239Pu), in understanding radioactive tank waste composition, and in identifying 99mTc compounds for nuclear medicine imaging. One of the most useful synthetic starting materials, (NBu4)TcOCl4, is susceptible to disproportionation in water to form TcO4 and TcIV species, especially TcO2 2H2O. This unwanted reaction is especially problematic when working with ligands bearing hard donor atoms, such as oxygen, where the stability with the soft TcV=O3+ core may be low. Polyoxometalates (POMs) are such ligands. They possess defect sites with four hard oxygen atoms and show low (ca. 108) stability constants with transition metals. Tc complexes of POMs are molecular-level models for Tc metal oxide solid-state materials and can provide information on coordination and redox environments of metal oxides that stabilize low-valent Tc. In order to synthesize pure Tc POM complexes [TcVO(1-P2W17O61)]7 (TcVO-1) and [TcVO(2-P2W17O61)]7 (TcVO-2) from (NBu4)TcOCl4, we have identified strategies that minimize formation of TcIV species and optimize the formation of pure TcV species. The parameters that we consider are the amount of ethylene glycol, which is employed as a transfer ligand to prevent hydrolysis of (NBu4)TcOCl4, and the precipitating agent. The TcIV species that contaminates the non-optimized syntheses is likely a TcIV -oxido-bridged dimer [TcIV-(-O)2-TcIV]. We also employ a novel procedure where the 2 ligand is photoactivated and reduced (in the presence of a sacrificial electron donor) to subsequently reduce TcVIIO4 to an isolatable TcVO-2 product that is remarkably free of TcIV.

McGregor, Donna; Burton-Pye, Benjamin P.; Lukens, Wayne W.; Howell, Robertha C.; Francesconi, Lynn C.

2014-01-01T23:59:59.000Z

482

Graphical models, causal inference, and econometric models  

E-Print Network [OSTI]

Graphical models, causal inference, and econometric models Peter Spirtes Abstract A graphical model modeling has historical ties to causal modeling in econometrics and other social sciences, there have been isolated from the econometric tradition. In this paper I will describe a number of recent developments

Spirtes, Peter

483

Silver vanadium diphosphate Ag{sub 2}VP{sub 2}O{sub 8}: Electrochemistry and characterization of reduced material providing mechanistic insights  

SciTech Connect (OSTI)

Silver vanadium phosphorous oxides (Ag{sub w}V{sub x}P{sub y}O{sub z}) are notable battery cathode materials due to their high energy density and demonstrated ability to form in-situ Ag metal nanostructured electrically conductive networks within the cathode. While analogous silver vanadium diphosphate materials have been prepared, electrochemical evaluations of these diphosphate based materials have been limited. We report here the first electrochemical study of a silver vanadium diphosphate, Ag{sub 2}VP{sub 2}O{sub 8}, where the structural differences associated with phosphorous oxides versus diphosphates profoundly affect the associated electrochemistry. Reminiscent of Ag{sub 2}VO{sub 2}PO{sub 4} reduction, in-situ formation of silver metal nanoparticles was observed with reduction of Ag{sub 2}VP{sub 2}O{sub 8}. However, counter to Ag{sub 2}VO{sub 2}PO{sub 4} reduction, Ag{sub 2}VP{sub 2}O{sub 8} demonstrates a significant decrease in conductivity upon continued electrochemical reduction. Structural analysis contrasting the crystallography of the parent Ag{sub 2}VP{sub 2}O{sub 8} with that of the proposed Li{sub 2}VP{sub 2}O{sub 8} reduction product is employed to gain insight into the observed electrochemical reduction behavior, where the structural rigidity associated with the diphosphate anion may be associated with the observed particle fracturing upon deep electrochemical reduction. Further, the diphosphate anion structure may be associated with the high thermal stability of the partially reduced Ag{sub 2}VP{sub 2}O{sub 8} materials, which bodes well for enhanced safety of batteries incorporating this material. - Graphical abstract: Structure and galvanostatic intermittent titration-type test data for silver vanadium diphosphate, Ag{sub 2}VP{sub 2}O{sub 8}. Highlights: ? First electrochemical study of a silver vanadium diphosphate, Ag{sub 2}VP{sub 2}O{sub 8}. ? In-situ formation of Ag{sup 0} nanoparticles was observed upon electrochemical reduction. ? Structural analysis used to provide insight of the electrochemical behavior.

Takeuchi, Esther S., E-mail: esther.takeuchi@stonybrook.edu [Department Materials Science and Engineering, Stony Brook University (SUNY), Stony Brook, NY 11794 (United States); Global and Regional Solutions Directorate, Brookhaven National Laboratory, Upton, NY 11973 (United States); Department of Chemistry, Stony Brook University (SUNY), Stony Brook, NY 11794 (United States); Lee, Chia-Ying; Cheng, Po-Jen [Department of Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, NY 14260 (United States); Menard, Melissa C. [Department Materials Science and Engineering, Stony Brook University (SUNY), Stony Brook, NY 11794 (United States); Marschilok, Amy C., E-mail: amy.marschilok@stonybrook.edu [Department Materials Science and Engineering, Stony Brook University (SUNY), Stony Brook, NY 11794 (United States); Department of Chemistry, Stony Brook University (SUNY), Stony Brook, NY 11794 (United States); Takeuchi, Kenneth J., E-mail: kenneth.takeuchi.1@stonybrook.edu [Department of Chemistry, Stony Brook University (SUNY), Stony Brook, NY 11794 (United States)

2013-04-15T23:59:59.000Z

484

Non-linear Langevin model for the early-stage dynamics of electrospinning jets  

E-Print Network [OSTI]

We present a non-linear Langevin model to investigate the early-stage dynamics of electrified polymer jets in electrospinning experiments. In particular, we study the effects of air drag force on the uniaxial elongation of the charged jet, right after ejection from the nozzle. Numerical simulations show that the elongation of the jet filament close to the injection point is significantly affected by the non-linear drag exerted by the surrounding air. These result provide useful insights for the optimal design of current and future electrospinning experiments.

Lauricella, Marco; Pisignano, Dario; Succi, Sauro

2015-01-01T23:59:59.000Z

485

Structure, stability, and dissociation of small ionic silicon oxide clusters [SiO{sub n}{sup +}(n = 3, 4)]: Insight from density functional and topological exploration  

SciTech Connect (OSTI)

The structures, energies, isomerization, and decomposition pathways of small ionic silicon oxide clusters, SiO{sub n}{sup +} (n = 3, 4), on doublet and quartet energy surfaces are investigated by density functional theory. New structural isomers of these ionic clusters have been obtained with this systematic study. The energy ordering of the isomeric cluster ions on doublet spin surface is found to follow the same general trend as that of the neutral ones, while it differs on the quartet surface. Our computational results reveal the energetically most preferred decomposition pathways of the ionic clusters on both spin surfaces. To comprehend the reaction mechanism, bonding evolution theory has also been employed using atoms in molecules formalism. The possible reasons behind the structural deformation of some isomers on quartet surface have also been addressed. Our results are expected to provide important insight into the decomposition mechanism and relative stability of the SiO{sub n}{sup +} clusters on both the energy surfaces.

Sen, Kaushik; Ghosh, Deepanwita; Pakhira, Srimanta; Banu, Tahamida; Das, Abhijit K., E-mail: spakd@iacs.res.in [Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032 (India)

2013-12-21T23:59:59.000Z

486

Hydrologic Modeling Capabilities  

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

Management Programs has both experience and technical knowledge to use and develop Earth systems models. Hydrological Modeling Models are simplified representations of...

487

Sandia National Laboratories: Modeling  

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

a model that can be used ... Sandian Mark Boslough Featured on NOVA Episode about Chelyabinsk Meteor On November 20, 2013, in Computational Modeling & Simulation, Modeling,...

488

Economic and policy implications of pandemic influenza.  

SciTech Connect (OSTI)

Pandemic influenza has become a serious global health concern; in response, governments around the world have allocated increasing funds to containment of public health threats from this disease. Pandemic influenza is also recognized to have serious economic implications, causing illness and absence that reduces worker productivity and economic output and, through mortality, robs nations of their most valuable assets - human resources. This paper reports two studies that investigate both the short- and long-term economic implications of a pandemic flu outbreak. Policy makers can use the growing number of economic impact estimates to decide how much to spend to combat the pandemic influenza outbreaks. Experts recognize that pandemic influenza has serious global economic implications. The illness causes absenteeism, reduced worker productivity, and therefore reduced economic output. This, combined with the associated mortality rate, robs nations of valuable human resources. Policy makers can use economic impact estimates to decide how much to spend to combat the pandemic influenza outbreaks. In this paper economists examine two studies which investigate both the short- and long-term economic implications of a pandemic influenza outbreak. Resulting policy implications are also discussed. The research uses the Regional Economic Modeling, Inc. (REMI) Policy Insight + Model. This model provides a dynamic, regional, North America Industrial Classification System (NAICS) industry-structured framework for forecasting. It is supported by a population dynamics model that is well-adapted to investigating macro-economic implications of pandemic influenza, including possible demand side effects. The studies reported in this paper exercise all of these capabilities.

Smith, Braeton J.; Starks, Shirley J.; Loose, Verne W.; Brown, Theresa Jean; Warren, Drake E.; Vargas, Vanessa N.

2010-03-01T23:59:59.000Z

489

Material World: Forecasting Household Appliance Ownership in a Growing Global Economy  

SciTech Connect (OSTI)

Over the past years the Lawrence Berkeley National Laboratory (LBNL) has developed an econometric model that predicts appliance ownership at the household level based on macroeconomic variables such as household income (corrected for purchase power parity), electrification, urbanization and climate variables. Hundreds of data points from around the world were collected in order to understand trends in acquisition of new appliances by households, especially in developing countries. The appliances covered by this model are refrigerators, lighting fixtures, air conditioners, washing machines and televisions. The approach followed allows the modeler to construct a bottom-up analysis based at the end use and the household level. It captures the appliance uptake and the saturation effect which will affect the energy demand growth in the residential sector. With this approach, the modeler can also account for stock changes in technology and efficiency as a function of time. This serves two important functions with regard to evaluation of the impact of energy efficiency policies. First, it provides insight into which end uses will be responsible for the largest share of demand growth, and therefore should be policy priorities. Second, it provides a characterization of the rate at which policies affecting new equipment penetrate the appliance stock. Over the past 3 years, this method has been used to support the development of energy demand forecasts at the country, region or global level.

Letschert, Virginie; McNeil, Michael A.

2009-03-23T23:59:59.000Z

490

COMMENTARY | insightCOMMENTARY | insight integrated nanoelectronics for  

E-Print Network [OSTI]

hold for integrated electronics? LG LG Isolation Figure 1 non-planar transistors. a, double-gate transistor. b, schematic and c, scanning electron microscope (seM) image of a tri-gate transistor. Lg of these innovations include mechanically strained silicon channels, where strain enhances electron and hole mobility

Yener, Aylin

491

I&C Modeling in SPAR Models  

SciTech Connect (OSTI)

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

John A. Schroeder

2012-06-01T23:59:59.000Z

492

Is the Weibull distribution really suited for wind statistics modeling and wind power evaluation?  

E-Print Network [OSTI]

Wind speed statistics is generally modeled using the Weibull distribution. This distribution is convenient since it fully characterizes analytically with only two parameters (the shape and scale parameters) the shape of distribution and the different moments of the wind speed (mean, standard deviation, skewness and kurtosis). This distribution is broadly used in the wind energy sector to produce maps of wind energy potential. However, the Weibull distribution is based on empirical rather than physical justification and might display strong limitations for its applications. The philosophy of this article is based on the modeling of the wind components instead of the wind speed itself. This provides more physical insights on the validity domain of the Weibull distribution as a possible relevant model for wind statistics and the quantification of the error made by using such a distribution. We thereby propose alternative expressions of more suited wind speed distribution.

Drobinski, Philippe

2012-01-01T23:59:59.000Z

493

Fatigue crack propagation in a quasi one-dimensional elasto-plastic model  

E-Print Network [OSTI]

Fatigue crack advance induced by the application of cyclic quasistatic loads is investigated both numerically and analytically using a lattice spring model. The system has a quasi-one-dimensional geometry, and consists in two symmetrical chains that are pulled apart, thus breaking springs which connect them, and producing the advance of a crack. Quasistatic crack advance occurs as a consequence of the plasticity included in the springs which form the chains, and that implies a history dependent stress-strain curve for each spring. The continuous limit of the model allows a detailed analytical treatment that gives physical insight of the propagation mechanism. This simple model captures key features that cause well known phenomenology in fatigue crack propagation, in particular a Paris-like law of crack advance under cyclic loading, and the overload retardation effect.

Tomás M. Guozden; Eduardo A. Jagla

2012-06-27T23:59:59.000Z

494

Standard Solar Model  

SciTech Connect (OSTI)

Solar models are important in our understanding of stars and stellar evolution. Solar models have been constructed using different methods. In this work, a solar model will be built using the fitting method. The model will incorporate the most recent input data. The model will be evolved to the current epoch starting from the zero-age main sequence model.

Loong, Lim Yaw; Yusof, Norhasliza; Kassim, Hasan Abu [Physics Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)

2008-05-20T23:59:59.000Z

495

Instruction-level performance modeling and characterization of multimedia applications  

SciTech Connect (OSTI)

One of the challenges for characterizing and modeling realistic multimedia applications is the lack of access to source codes. On-chip performance counters effectively resolve this problem by monitoring run-time behaviors at the instruction-level. This paper presents a novel technique of characterizing and modeling workloads at the instruction level for realistic multimedia applications using hardware performance counters. A variety of instruction counts are collected from some multimedia applications, such as RealPlayer, GSM Vocoder, MPEG encoder/decoder, and speech synthesizer. These instruction counts can be used to form a set of abstract characteristic parameters directly related to a processor`s architectural features. Based on microprocessor architectural constraints and these calculated abstract parameters, the architectural performance bottleneck for a specific application can be estimated. Meanwhile, the bottleneck estimation can provide suggestions about viable architectural/functional improvement for certain workloads. The biggest advantage of this new characterization technique is a better understanding of processor utilization efficiency and architectural bottleneck for each application. This technique also provides predictive insight of future architectural enhancements and their affect on current codes. In this paper the authors also attempt to model architectural effect on processor utilization without memory influence. They derive formulas for calculating CPI{sub 0}, CPI without memory effect, and they quantify utilization of architectural parameters. These equations are architecturally diagnostic and predictive in nature. Results provide promise in code characterization, and empirical/analytical modeling.

Luo, Y. [Los Alamos National Lab., NM (United States). Scientific Computing Group; Cameron, K.W. [Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Computer Science

1999-06-01T23:59:59.000Z

496

First-principles insights on the magnetism of cubic SrTi1-xCoxO3-J. M. Florez, S. P. Ong, M. C. Onbali, G. F. Dionne, P. Vargas et al.  

E-Print Network [OSTI]

First-principles insights on the magnetism of cubic SrTi1-xCoxO3- J. M. Florez, S. P. Ong, M. C/APPLAB/v100/i25 Published by the American Institute of Physics. Related Articles Magnetic properties and magnetic properties of BaTi1-xMnxO3 multiferroics J. Appl. Phys. 111, 113913 (2012) Preparation of Fe2Ni2N

Ceder, Gerbrand

497

Physical origins of weak H{sub 2} binding on carbon nanostructures: Insight from ab initio studies of chemically functionalized graphene nanoribbons  

SciTech Connect (OSTI)

We have performed ab initio density functional theory calculations, incorporating London dispersion corrections, to study the absorption of molecular hydrogen on zigzag graphene nanoribbons whose edges have been functionalized by OH, NH{sub 2}, COOH, NO{sub 2}, or H{sub 2}PO{sub 3}. We find that hydrogen molecules always preferentially bind at or near the functionalized edge, and display induced dipole moments. Binding is generally enhanced by the presence of polar functional groups. The largest gains are observed for groups with oxygen lone pairs that can facilitate local charge reorganization, with the biggest single enhancement in adsorption energy found for “strong functionalization” by H{sub 2}PO{sub 3} (115 meV/H{sub 2} versus 52 meV/H{sub 2} on bare graphene). We show that for binding on the “outer edge” near the functional group, the presence of the group can introduce appreciable contributions from Debye interactions and higher-order multipole electrostatic terms, in addition to the dominant London dispersion interactions. For those functional groups that contain the OH moiety, the adsorption energy is linearly proportional to the number of lone pairs on oxygen atoms. Mixed functionalization with two different functional groups on a graphene edge can also have a synergistic effect, particularly when electron-donating and electron-withdrawing groups are combined. For binding on the “inner edge” somewhat farther from the functional group, most of the binding again arises from London interactions; however, there is also significant charge redistribution in the ? manifold, which directly reflects the electron donating or withdrawing capacity of the functional group. Our results offer insight into the specific origins of weak binding of gas molecules on graphene, and suggest that edge functionalization could perhaps be used in combination with other strategies to increase the uptake of hydrogen in graphene. They also have relevance for the storage of hydrogen in porous carbon materials, such as activated carbons.

Ulman, Kanchan; Bhaumik, Debarati [Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064 (India)] [Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064 (India); Wood, Brandon C. [Quantum Simulations Group, Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, California 94550 (United States)] [Quantum Simulations Group, Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, California 94550 (United States); Narasimhan, Shobhana [Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064 (India) [Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064 (India); Sheikh Saqr Laboratory, ICMS, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064 (India)

2014-05-07T23:59:59.000Z

498

COOH-Terminal Clustering of Autoantibody and T-Cell Determinants on the Structure of GAD65 Provide Insights Into the Molecular Basis of Autoreactivity  

SciTech Connect (OSTI)

To gain structural insights into the autoantigenic properties of GAD65 in type 1 diabetes, we analyzed experimental epitope mapping data in the context of the recently determined crystal structures of GAD65 and GAD67, to allow 'molecular positioning' of epitope sites for B- and T-cell reactivity. Data were assembled from analysis of reported effects of mutagenesis of GAD65 on its reactivity with a panel of 11 human monoclonal antibodies (mAbs), supplemented by use of recombinant Fab to cross-inhibit reactivity with GAD65 by radioimmunoprecipitation of the same mAbs. COOH-terminal region on GAD65 was the major autoantigenic site. B-cell epitopes were distributed within two separate clusters around different faces of the COOH-terminal domain. Inclusion of epitope sites in the pyridoxal phosphate- and NH{sub 2}-terminal domains was attributed to the juxtaposition of all three domains in the crystal structure. Epitope preferences of different mAbs to GAD65 aligned with different clinical expressions of type 1 diabetes. Epitopes for four of five known reactive T-cell sequences restricted by HLA DRB1*0401 were aligned to solvent-exposed regions of the GAD65 structure and colocalized within the two B-cell epitope clusters. The continuous COOH-terminal epitope region of GAD65 was structurally highly flexible and therefore differed markedly from the equivalent region of GAD67. Structural features could explain the differing antigenicity, and perhaps immunogenicity, of GAD65 versus GAD67. The proximity of B- and T-cell epitopes within the GAD65 structure suggests that antigen-antibody complexes may influence antigen processing by accessory cells and thereby T-cell reactivity.

Fenalti, Gustavo; Hampe, Christiane S.; Arafat, Yasir; Law, Ruby H.P.; Banga, J. Paul; Mackay, Ian R.; Whisstock, James C.; Buckle, Ashley M.; Rowley, Merrill J. (UWASH); (King’ s College); (Monash)

2008-11-19T23:59:59.000Z

499

Ecological insights from bacterial networks  

E-Print Network [OSTI]

Microbes occupy a wide range of important niches ranging from global biogeochemical cycles to metabolism in the human gut. Yet microbes rarely act in isolation. Instead, they thrive in complex communities with myriad ...

Smith, Mark Burnham

2014-01-01T23:59:59.000Z

500

Comment > Insight & Opinion The government's  

E-Print Network [OSTI]

? Occupying one-sixth of the total land mass of China, Xinjiang possesses some of the nation's largest natural gas and oil reserves, and is strategically situated as a distributor of these resources to energy connections between the nearly 21 million Muslims in China and elsewhere. The present response to the recent

Oxford, University of