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Note: This page contains sample records for the topic "firm level heterogeneity" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

A theoretical and empirical exploration into the heterogeneous fragility of Chilean firms and workplaces  

E-Print Network [OSTI]

This dissertation consists of three essays on the heterogeneous reactions of firms to shocks, with particular empirical applications to the Chilean economy. The first essay presents a model of heterogeneity in an economy ...

Landerretche, Oscar

2006-01-01T23:59:59.000Z

2

CO2 emission and firm heterogeneity: a study of metals and metal-based industries in India  

Science Journals Connector (OSTI)

Industrial energy efficiency has emerged as one of the key issues in India. The increasing demand for energy that leads to growing challenge of climate change has resulted major issues. It is obvious that high-energy intensity leads to high carbon intensity of the economy. This paper is an attempt to estimate the firm level CO2 emissions for the metals and metal-based industries in Indian manufacturing. Calculation of firm level emissions is carried out following IPCC reference approach methodology of carbon dioxide emission from fuel combustion. We tried to find out the inter-firm differences of CO2 emission in the metals and metal-based industries. Data for this study is collated from the CMIE PROWESS online database from 2000-2008, IEA energy statistics and IPCC conversion factors for each of the fuel types. This study found size, age, energy intensity and technology import intensity as the major determinants of CO2 emission intensity of Indian metal and metal-based firms. In addition capital and labour intensity of the firms are also related to the firms' emission intensity.

Santosh Kumar Sahu; K. Narayanan

2013-01-01T23:59:59.000Z

3

Impact of demand-enhancing farm policy on the agricultural sector: a firm level simulation of ethanol production subsidies  

E-Print Network [OSTI]

IMPACT OF DEMAND-ENHANCING FARM POLICY ON THE AGRICULTURAL SECTOR: A FIRM LEVEL SIMULATION OF ETHANOL PRODUCTION SUBSIDIES A Thesis By LETA SUSANNE WASSON Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1990 Major Subject: Agricultural Economics IMPACT OF DEMAND-ENHANCING FARM POLICY ON THE AGRICULTURAL SECTOR: A FIRM LEVEL SIMULATION OF ETHANOL PRODUCTION SUBSIDIES A Thesis...

Wasson, Leta Susanne

2012-06-07T23:59:59.000Z

4

VAT rebates and export performance in China: Firm-level evidence  

Science Journals Connector (OSTI)

Abstract A destination-based VAT system without a complete export tax rebate is detrimental to a country's exports, while an increase in the VAT rebate rate helps reduce the negative effects. In this paper, we study the role of VAT rebates in affecting Chinese exports using firm-level panel data for 2000–2006. To address potential endogeneity, we rely on a quasi-natural policy experiment in 2004, when the fiscal conditions of local governments became important in determining the actual VAT rebate rates for exports. The empirical findings demonstrate significant and large effects of VAT rebates on export volume. On average, for each percentage point increase in the VAT rebate rate, the amount of exports increased by 13%, which translates into an additional $4.70 of exports for each $1 of export tax rebates paid.

Piyush Chandra; Cheryl Long

2013-01-01T23:59:59.000Z

5

Tax credits and total factor productivity: firm-level evidence from Taiwan  

Science Journals Connector (OSTI)

We studied the effect of tax policy on the productivity of Taiwanese manufacturing ... we investigated the determinants of firm decisions on tax credit applications. By employing the dynamic random effect ... pro...

Chia-Hui Huang

2014-07-01T23:59:59.000Z

6

R&D and productivity: using UK firm-level data to inform policy  

Science Journals Connector (OSTI)

The UK’s business R&D (BERD) to GDP ratio is low ... declined over the 1990s. This paper uses data on 719 large UK firms to analyse the link between R&D and productivity during 1989–2000. The results indicate tha...

Mark Rogers

2010-07-01T23:59:59.000Z

7

Top Management Team Personal Wealth, Within-Team Diversity and the Implications for Firm-Level Risk Taking  

E-Print Network [OSTI]

TOP MANAGEMENT TEAM PERSONAL WEALTH, WITHIN-TEAM DIVERSITY AND THE IMPLICATIONS FOR FIRM-LEVEL RISK TAKING A Dissertation by JOANNA TOCHMAN CAMPBELL Submitted to the Office of Graduate Studies of Texas A&M University... A Dissertation by JOANNA TOCHMAN CAMPBELL 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 Approved by: Co-Chairs of Committee...

Campbell, Joanna

2012-07-16T23:59:59.000Z

8

Molecular-level Design of Heterogeneous Chiral Catalysts  

SciTech Connect (OSTI)

Understanding and controlling selectivity is one of the key challenges in heterogeneous catalysis. Among problems in catalytic selectivity enantioselectivity is perhaps the most the most challenging. The primary goal of the project on “Molecular-level Design of Heterogeneous Chiral Catalysts” is to understand the origins of enantioselectivity on chiral heterogeneous surfaces and catalysts. The efforts of the project team include preparation of chiral surfaces, characterization of chiral surfaces, experimental detection of enantioselectivity on such surfaces and computational modeling of the interactions of chiral probe molecules with chiral surfaces. Over the course of the project period the team of PI’s has made some of the most detailed and insightful studies of enantioselective chemistry on chiral surfaces. This includes the measurement of fundamental interactions and reaction mechanisms of chiral molecules on chiral surfaces and leads all the way to rationale design and synthesis of chiral surfaces and materials for enantioselective surface chemistry. The PI’s have designed and prepared new materials for enantioselective adsorption and catalysis. Naturally Chiral Surfaces • Completion of a systematic study of the enantiospecific desorption kinetics of R-3-methylcyclohexanone (R-3-MCHO) on 9 achiral and 7 enantiomeric pairs of chiral Cu surfaces with orientations that span the stereographic triangle. • Discovery of super-enantioselective tartaric acid (TA) and aspartic acid (Asp) decomposition as a result of a surface explosion mechanism on Cu(643)R&S. Systematic study of super-enantiospecific TA and Asp decomposition on five enantiomeric pairs of chiral Cu surfaces. • Initial observation of the enantiospecific desorption of R- and S-propylene oxide (PO) from Cu(100) imprinted with {3,1,17} facets by L-lysine adsorption. Templated Chiral Surfaces • Initial observation of the enantiospecific desorption of R- and S-PO from Pt(111) and Pd(111) modified by a variety of chiral templates. • Demonstrated enantioselective separation of racemic PO on chemically synthesized chiral gold nanoparticles. • Discovery of zwitterionic adsorption states of amino acids on Pd(111). • First structure determinations of adsorbed amino acids and identification of tetrameric chiral template structures. • Exploration of the enantiospecific interaction of PO and R-3-MCHO adsorption on chirally modified Cu(100), Cu(110) and Cu(111). One-to-One Interactions • Determination of cinchona orientation on Pt surfaces in situ at the solid-liquid interface using FT-IRAS. • Systematic study of the influence of solution properties on the adsorption of modified cinchonas alkaloids onto Pt surfaces. • Correlation of cinchona adsorption with catalytic activity, as affected by concentration, the nature of the solvent, and dissolved gases in the liquid phase. • Measurement of enantioselective chemisorption on 1-(1-naphthyl) ethylamine (NEA) modified Pt(111) and Pd(111) surfaces. • Imaging of chiral docking complexes between NEA and methyl pyruvate on Pd(111). Chiral Catalyst Synthesis • Anchoring of cinchona alkaloid to surfaces • Synthesis of chiral Au nanoparticles and demonstration of their enantiospecific interactions with R- and S-PO. • Elucidation of the driving forces for chiral imprinting of Cu(100) by L- and D-lysine to form Cu(3,1,17)R&S facets.

Gellman, Andrew John [Carnegie Mellon University; Sholl, David S. [Georgia Institute of Technology; Tysoe, Wilfred T. [University of Wisconsin - Milwaukee; Zaera, Francisco [University of California at Riverside

2013-04-28T23:59:59.000Z

9

Essays on regional and firm-level productivity, military spending, and technology  

E-Print Network [OSTI]

Statistics (BLS) Current Employment Statistics (CES) AnnualLabor Statistics Current Employment Statistics survey. Theregional employment, and state-level patent statistics are

Goudie, Bryan Daniel

2008-01-01T23:59:59.000Z

10

Heterogeneous System-Level Cosimulation with SDL Per Bjurus*  

E-Print Network [OSTI]

to the design. Today the situation is changing, and requires a system level integration of control and data to assess the interaction of these two parts in an early design phase. Detector User Interface Control Logic-processing unit, a user interface, a system supervision unit, control logic, and a display. The user interface

Jantsch, Axel

11

Energy futures prices and commodity index investment: New evidence from firm-level position data  

Science Journals Connector (OSTI)

Abstract This study brings fresh data to the highly-charged debate about the price impact of long-only index investment in energy futures markets. We use high frequency daily position data for NYMEX crude oil, heating oil, RBOB gasoline, and natural gas that are available from a representative large commodity index fund (“the Fund”) from February 13, 2007 through May 30, 2012. Simple correlation tests, difference-in-means tests, and Granger causality tests generally fail to reject the null hypothesis that changes in Fund positions are unrelated to subsequent returns in all four energy futures markets. We also fail to find any evidence that Fund positions are related to price movements in the WTI crude oil futures market using Singleton's (2014) long-horizon regression specification. Our results suggest Singleton's original finding of significant impacts and high levels of predictability may be simply an artifact of the method used to impute crude oil positions of index investors in a particular sample period. Overall, the empirical tests in this study fail to find compelling evidence of predictive links between commodity index investment and changes in energy futures prices.

Dwight R. Sanders; Scott H. Irwin

2014-01-01T23:59:59.000Z

12

Lake Level Controlled Sedimentological I Heterogenity of Oil Shale, Upper Green River  

E-Print Network [OSTI]

Chapter 3 Lake Level Controlled Sedimentological 1:'_i 'I I Heterogenity of Oil Shale, Upper Green email: mgani@uno.edu t",. The Green River Formation comprises the world's largest deposit of oil-shale characterization of these lacustrine oil-shale deposits in the subsurface is lacking. This study analyzed ~300 m

Gani, M. Royhan

13

A Longitudinal Analysis of the Impact of Firm Resources and Industry Characteristics on Firm-Specific Profitability  

E-Print Network [OSTI]

Using a dynamic heterogeneous panel data model, we examine the relationship between firm-specific resources (corporate management capabilities, employee value-added and technological competence) and firm-specific profitability ...

Acquaah, Moses; Chi, Tailan

2007-01-01T23:59:59.000Z

14

Solar Firms Scale Back  

Science Journals Connector (OSTI)

Solar Firms Scale Back ... First Solar, an Arizona-based thin-film photovoltaics firm, said last week that it will restructure its operations to reduce capacity and shift production to more efficient facilities. ...

MELODY BOMGARDNER

2012-04-23T23:59:59.000Z

15

Windy Gap Firming Project  

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

Infrastructure projects Interconnection OASIS OATT Windy Gap Firming Project, Final Environmental Impact Statement, DOEEIS-0370 (cooperating agency) Western's proposed...

16

Financial Constraints and Firm Export hal-00973114,version1-3Apr2014  

E-Print Network [OSTI]

to overcome the sunk entry costs into export markets and expand their activities abroad. Keywords: Export; Firm heterogeneity; Financial constraints; Sunk costs JEL Classification: F14; G32; L25; D92 1 both firm heterogeneity and the relevance of sunk entry costs into export markets.1 Once extended

Paris-Sud XI, Université de

17

Do Private Firms Invest Dierently than Public Firms? Taking Cues from the Natural Gas Industry  

E-Print Network [OSTI]

Do Private Firms Invest Dierently than Public Firms? Taking Cues from the Natural Gas Industry Erik and public rms using a unique dataset of onshore U.S. natural gas producers. In rm-level regressions we nd that investments by private rms are 68% less responsive to changes in natural gas prices, a measure that captures

Lin, Xiaodong

18

Optimal threshold-based network-level transportation infrastructure life-cycle management with heterogeneous maintenance actions  

Science Journals Connector (OSTI)

Transportation infrastructure life-cycle management deals with maintenance decision making of transportation facilities such as pavement, bridges, and railways under budget constraints. In practice, transportation agencies adopt threshold-based rules for maintenance planning because they are intuitive and easy to implement. However, the thresholds are often determined based on engineering judgment without any systematic approach. Therefore, maintenance budgets cannot be used effectively and facility conditions are not optimized. This research uses hybrid dynamic models to represent threshold-based maintenance for transportation infrastructure in a realistic manner. Hybrid dynamic models combine continuous states such as pavement roughness and age with discrete states such as maintenance history. These models are also capable of considering multiple maintenance actions with heterogeneous effects. Based on facility conditions and maintenance thresholds, corresponding maintenance actions are selected automatically and the facility switches between deterioration modes to reflect the effects of the chosen action. Furthermore, to consider users’ reactions to maintenance actions and accurately predict deterioration for a network of facilities, threshold-based maintenance is formulated as an upper-level problem, and user response is incorporated as a lower-level problem. This leads to a bi-level programming problem where maintenance thresholds are decision variables, which is solved with a modified tabu search algorithm. The proposed methodology is validated with the road network of an urban area and the generated maintenance thresholds are reasonable and robust, which shows that the methodology has great potential to support transportation infrastructure life-cycle management in practice.

James C. Chu; Yin-Jay Chen

2012-01-01T23:59:59.000Z

19

Windy Gap Firming Project  

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

Windy Gap Firming Project Windy Gap Firming Project Skip Navigation Links Transmission Functions Infrastructure projects Interconnection OASIS OATT Windy Gap Firming Project, Final Environmental Impact Statement, DOE/EIS-0370 (cooperating agency) Western's proposed action is to relocate approximately 3.8 miles of the existing Estes to Lyons 115-kilovolt transmission line, if the Chimney Hollow Reservoir alternative is constructed. The line would be moved outside the area proposed for the reservoir, and Western would ensure the new location would allow the agency to continue to operate and maintain it. Section 2.4.1.4 of the Final Environmental Impact Statement, Volume 1 provides more information on the transmission line relocation proposal. The U.S. Department of the Interior, Bureau of Reclamation is the Lead Agency for the National Environmental Policy Act Review. Cooperating agencies are Western, the U.S. Army Corps of Engineers and Grand County, Colo.

20

Who benefits from investment in universities? : institutions, university spillovers, and firm performance  

E-Print Network [OSTI]

This study examines the impact of local institutional arrangements on firm level spillover effects from universities. Specifically, I test the proposition of co-location with universities affecting firm performance, taking ...

Ching, Kenny Hwee Seong

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Runtime Adaptation for Autonomic Heterogeneous Computing | ornl...  

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

caching, OS noise, and a myriad of other factors. As heterogeneity becomes a fact of life at every level of computing, efficiently managing heterogeneous compute resources is...

22

Reilly Industries Is Acquired By Investment Firm  

Science Journals Connector (OSTI)

Reilly Industries Is Acquired By Investment Firm ... Arsenal Managing Director Barry Siadat says his firm invests in niche market leaders in the specialty chemical ... ...

MICHAEL MCCOY

2005-10-10T23:59:59.000Z

23

A THEORY OF FIRM SCOPE  

E-Print Network [OSTI]

The formal literature on firm boundaries has assumed that ex post conflicts are resolved through bargaining. In reality, parties often simply exercise their decision rights. We develop a model, based on shading, in which ...

Holmstrom, Bengt

24

EPC Firms Expand Their Role  

E-Print Network [OSTI]

and were financed by the investor-owned electric utilities themselves. The bulk of U.S. base-load fossil, nuclear and hydro power plants were built by major firms such as Bechtel Power, Stone & Webster Enginnering Corp., Ebasco and others. Most... and were financed by the investor-owned electric utilities themselves. The bulk of U.S. base-load fossil, nuclear and hydro power plants were built by major firms such as Bechtel Power, Stone & Webster Enginnering Corp., Ebasco and others. Most...

Hernandez, L. A. Jr.

25

RECRUITMENT SEARCH FIRMS HUMAN RESOURCES  

E-Print Network [OSTI]

RECRUITMENT SEARCH FIRMS HUMAN RESOURCES GUIDELINES Workforce Planning | Washington Square, San by the Workforce Planning Unit in Human Resources at SJSU. Process Consistent, defensible processes for evaluating of the recruitment. - At this meeting, the Workforce Planning analyst can provide contact information for search

Su, Xiao

26

IT investments and firm performance across economies  

E-Print Network [OSTI]

Research has shown a positive relationship between IT investments and firm performance. But the results vary across firms and performance measures. Evidence indicates that IT resource allocations, in the form of investment ...

Sahu, Rakesh

2009-01-01T23:59:59.000Z

27

High level modeling and automated generation of heterogeneous SoC architectures with optimized custom reconfigurable cores and on-chip communication media  

Science Journals Connector (OSTI)

In this paper we propose a framework for modeling and automated generation of heterogeneous SoC architectures with emphasis on reconfigurable component integration and optimized communication media. In order to facilitate rapid development of SoC architectures, communication-centric platforms for data intensive applications, high level modeling of reconfigurable components for quick simulation and a tool for generation of complete SoC architectures is presented. Four different communication-centric platforms based on traditional bus, crossbar, hierarchical bus and novel hybrid communication media are proposed. These communication-centric platforms are proposed to cater for the different communication requirement of future SoC architectures. Multi-Standard telecommunication application is chosen as our target application domain and a case study of WiMAX is used as a real world example to demonstrate the effectiveness of our approach. A system consisting of an ARM processor, reconfigurable FFT and reconfigurable Viterbi decoder is considered with the option of system scalability for future upgrades. Behavior of system with different communication platforms is analyzed for its throughput and power characteristics with different reconfigurable scenarios to show the effectiveness of our approach.

Balal Ahmad; Ali Ahmadinia; Tughrul Arslan

2010-01-01T23:59:59.000Z

28

Evaluating the importance of innovative heterogeneous chemistry to explain observed stratospheric ozone depletion  

SciTech Connect (OSTI)

Currently, there is a widespread search for additional heterogeneous reactions or combination of heterogeneous and homogeneous (gas-phase) reactions that could catalytically reduce ozone to observed levels. In 1992, Burley and Johnston proposed that nitrosyl sulfuric acid (NSA) NOHSO{sub 4}, is a promising heterogeneous reactant for activating HCl in sulfuric acid particles. They list several sources for producing it in the stratosphere and they carried out thermodynamic and chemical kinetic calculations at one stratospheric altitude and at one latitude. NSA has been overlooked in all previous stratospheric model calculations, even though it has been observed in stratospheric sulfate aerosols. This study makes large scale atmospheric model calculations to test the proposal by Burley and Johnston that a promising heterogeneous process for activating HCl in sulfuric acid particles is a catalytic coupled based on nitrosyl sulfuric acid (NSA). This mechanism is examined under non-volcanic and volcanic conditions representative of the recent eruption of Mt. Pinatubo. The calculations set firm limits on the range of kinetic parameters over which this heterogeneous processes would be important in the global ozone balance, and thus is a guide for where laboratory work is needed. In addition, they have derived a preliminary time-dependent integration (1980--1994) to represent the observed trend in ozone. Comparison between model-derived and the observed ozone trend will be compared.

Kinnison, D.E.; Connell, P.S. [Lawrence Livermore National Lab., CA (United States). Atmospheric Science Div.

1996-02-27T23:59:59.000Z

29

Essays on the Performance of Manufacturing Firms in Developing Countries  

E-Print Network [OSTI]

s tate- and firm-level da ta f rom India ove r t he pe riodbout ha lf of w hich comes f rom i ncreased employment i n ternal to the f irm. Using da ta f rom a n experiment on the

Eifert, Benjamin Patrick

2010-01-01T23:59:59.000Z

30

International technology transfer, firm productivity and employment.  

E-Print Network [OSTI]

??This dissertation contributes to the empirical literature on the effects of international technology transfer on firms' productivity and employment in developing and transition countries. It… (more)

Pantea, Smaranda

2012-01-01T23:59:59.000Z

31

Market Orientation in Indian Seafood Processing Firms.  

E-Print Network [OSTI]

??This thesis studied the impact of market orietnation on business performance, in the seafood industry, which is a unique situation wherein the firms were all… (more)

Smitha, Nair

2007-01-01T23:59:59.000Z

32

Building Relationships with Executive Search Firms Building Relationships with Executive Search Firms  

E-Print Network [OSTI]

Relationships Similar Searches Alumni Organizations Education Company Team - Sports Job Hunting / NetworkingBuilding Relationships with Executive Search Firms for Building Relationships with Executive Search Firms for Weiner & Associates, Inc. Executive Search Partners Weiner & Associates, Inc. Executive Search

Ferrari, Silvia

33

Institutional Investors, Managerial Incentives, and Firms' Risk Profiles  

E-Print Network [OSTI]

(Vega). Instead, I find that institutional investors appear to influence the risk profile of firm through the firm’s investment, financing and diversification policy choices even after I control for the CEO’s compensation structure. The results suggest...

Celil, Hursit S

2013-04-11T23:59:59.000Z

34

Capital expenditure decision making in small firms  

Science Journals Connector (OSTI)

A number of studies have been conducted to determine the extent to which large firms utilize sophisticated techniques in capital expenditure decision making. This research effort focuses on financial decision making procedures of small firms, exploring the techniques utilized to evaluate investment opportunities, methods employed to adjust for risk, purposes of expenditures and concern for profitability, and the source and cost of funds. In light of the recent debate on the capital shortage issue, small firms were also asked what type of tax reform they deemed most desirable to stimulate capital investments.

L.R. Runyon

1983-01-01T23:59:59.000Z

35

The Role of Capital Expenditures in Signalling Firm Value  

E-Print Network [OSTI]

and Corporate Capital Expenditure Announcements," PurdueTHE ROLE OF CAPITAL EXPENDITURES IN SIGNALLING FIRM VALUEAngeles THE ROLE OF CAPITAL EXPENDITURES IN SIGNALLING FIRM

Titman, Brett

1983-01-01T23:59:59.000Z

36

Firm leverage decisions: Does industry matter?  

Science Journals Connector (OSTI)

Abstract We use a standard capital structure mode l to investigate the firm leverage decisions of 1620 companies listed in the Australian Securities Exchange (ASX) across a span of 13 years (2000–2012), dividing the sample into mining and other industries (non-mining). We also test for significant differences in leverage decisions between these two groups by applying a dummy variable approach. Our findings show that fundamental differences exist between mining and non-mining companies when making leverage decisions. We find evidence that mining firms are more sensitive to profitability and asset tangibility where neither profitability nor asset tangibility has significant association for non-mining firms. Overall results suggest that industry-type does matter for firms making leverage decisions.

Silvia Z. Islam; Sarod Khandaker

2015-01-01T23:59:59.000Z

37

Empirical essays on firm behavior in India  

E-Print Network [OSTI]

In this thesis, I study the behavior of industrial firms in India in the electricity market and with respect to locational choice and environmental regulation. In the first chapter, I study the competitive effects of ...

Ryan, Nicholas (Nicholas James)

2012-01-01T23:59:59.000Z

38

Institutions, resources and firm strategies: a comparative analysis of entrepreneurial firms in three transitional economies  

Science Journals Connector (OSTI)

This study contrasts the impacts of institutions on entrepreneurial high technology firms in three transitional economies that share many institutional similarities but have taken different paths to economic reform: China, Poland and Russia. The study explores the impact of institutions on core aspects of the firm including strategic orientation, top management dynamics and firm strategy. We argue that different institutional environments that result from different development paths produce different strategic mindsets and generate different strategic actions. The findings have significant implications for institutional effects on transitional economies, which are discussed in light of future research on entrepreneurial firms.

Garry D. Bruton; Chung-Ming Lau; Krzysztof Obloj

2014-01-01T23:59:59.000Z

39

Essays on Firm Growth and Survival as a Fortune 500 Firm  

E-Print Network [OSTI]

In this dissertation, I develop frameworks and models capturing the effects of marketing capital and R and D capital on firm growth and sustained membership in the Fortune 500 cohort. Drawing on the resource-based view (RBV) of the firm...

Vadakkepatt, Gautham Gopal

2011-10-21T23:59:59.000Z

40

Does media governance restrict corporate overinvestment behavior? Evidence from Chinese listed firms  

Science Journals Connector (OSTI)

Abstract Using China’s A-share listed firms from 2007 to 2011, this paper empirically tests how media governance affects firmslevels of overinvestment and whether external supervision and informal institutional mechanisms reduce these levels. We find that media governance and overinvestment are significantly negatively related. When firms are located in a district with a stronger media governance environment their levels of overinvestment are lower, indicating that media governance significantly restricts overinvestment behavior. When internal corporate governance efficiency is low, the negative relationship between the media environment and overinvestment behavior is significantly enhanced, indicating that when internal governance or formal systems have reduced efficacy, an important complementary role is played by external supervision and the informal institutional environment. After considering endogeneity and different measures of overinvestment and other related variables, the conclusions remain unchanged.

Huili Zhang; Zengrui Su

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Patents, R&D and lag effects: evidence from flexible methods for count panel data on manufacturing firms  

Science Journals Connector (OSTI)

This paper investigates the relationship between patents and research and development expenditures using new longitudinal patent data at the firm level for the U. ... also develops a new class of count panel data

Shiferaw Gurmu; Fidel Pérez-Sebastián

2008-11-01T23:59:59.000Z

42

Investment firms to buy Sterling Chemicals  

Science Journals Connector (OSTI)

Sterling Chemicals—a Houston-based company that put itself on the block in January—has reached a definitive agreement to sell the company to two investment banking firms. The deal could spark a bidding war with Huntsman Corp., another potential purchaser. ...

MARC REISCH; SUSAN AINSWORTH

1996-04-29T23:59:59.000Z

43

Marketing Plan for BJI Architectural Design Firm  

E-Print Network [OSTI]

The partners of the architectural design firm BJI will use the information put together in this marketing plan to help focus their efforts on building a client base and obtaining more work. In the past, BJI relied on their networking skills...

Gruber, Jaci

2007-05-18T23:59:59.000Z

44

CERN seeks firm commitment to LHC  

Science Journals Connector (OSTI)

... ) last week reaffirmed its intention of approving the building of its Large Hadron Collider (LHC) at its meeting in June. But the council failed to reach agreement on the ... are keen that the wording should include a firm commitment to the construction of the LHC, regardless of whether additional funding is promised by non-member states.

Alison Abbott

1994-04-21T23:59:59.000Z

45

Knowledge, Compensation, and Firm Value: An Empirical Analysis of Firm Communication  

E-Print Network [OSTI]

and examine its economic consequences in terms of management compensation and firm valuation. To identify are not the costs of inducing truth telling as in a standard adverse selection game, but instead result from

46

The impact of financial incentives on firm behavior  

E-Print Network [OSTI]

This dissertation analyzes the impact of various financial incentives on firm behavior. The first two chapters examine product-market and input-market effects of a firm's capital structure and the incentives they create. ...

Matsa, David

2006-01-01T23:59:59.000Z

47

Product service transformation in product-centric firms  

E-Print Network [OSTI]

In slow or no-growth economies, firms cannot rely solely on recurring business from large, core customers who often delay or cancel capital investments in belt-tightening times. To achieve growth, firms must lever domain ...

Levitt, Benjamin (Benjamin P.)

2014-01-01T23:59:59.000Z

48

Risk management in a globalised cosmetic firm  

Science Journals Connector (OSTI)

The need of control and optimise the supply chain is now crucial for the firm operating in the actual economic environment. Some aspects such as globalisation, heavy dependence on transportation, communication infrastructures and lean manufacturing have led an increase in the vulnerability of supply networks. Owing to a large number of interrelated processes and products, disruptions caused by these vulnerabilities propagate rapidly. Firms, however, can partially control the robustness and resilience of their supply networks through strategic and tactical decisions. Therefore, a decision-support tool that assists managers to evaluate the risk exposure of their supply networks can considerably increase the robustness/resilience of these networks. In this paper, focusing the attention on a cosmetic sector where the uncertainty is even more high, it is shown how real option and risk analysis can help managers to manage new projects mitigating risk factors.

Federica Cucchiella; Massimo Gastaldi

2007-01-01T23:59:59.000Z

49

HETEROGENEOUS CATALYSIS RESEARCH MEETING  

E-Print Network [OSTI]

Williams) Transition~Metal Carbides Heterogeneous CatalysisActivity of Transition-Metal Carbides Wendell S. Williamsand testing of transition-metal carbide electrodes for

Authors, Various

2011-01-01T23:59:59.000Z

50

Ethiopia-Facilitating Implementation and Readiness for Mitigation (FIRM) |  

Open Energy Info (EERE)

Ethiopia-Facilitating Implementation and Readiness for Mitigation (FIRM) Ethiopia-Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: Ethiopia-Facilitating Implementation and Readiness for Mitigation (FIRM) Name Ethiopia-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 Program End 2013 Country Ethiopia UN Region Central America References Facilitating Implementation and Readiness for Mitigation (FIRM)[1]

51

UNEP-Facilitating Implementation and Readiness for Mitigation (FIRM) | Open  

Open Energy Info (EERE)

UNEP-Facilitating Implementation and Readiness for Mitigation (FIRM) UNEP-Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: UNEP-Facilitating Implementation and Readiness for Mitigation (FIRM) Name UNEP-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 References Facilitating Implementation and Readiness for Mitigation (FIRM)[1] "The Government of Denmark will provide US$6 million to the new programme

52

Facilitating Implementation and Readiness for Mitigation (FIRM) | Open  

Open Energy Info (EERE)

Facilitating Implementation and Readiness for Mitigation (FIRM) Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: UNEP-Facilitating Implementation and Readiness for Mitigation (FIRM) Name UNEP-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 Program End 2013 Country Costa Rica, Ethiopia, Ghana, Indonesia, Mexico, Morocco, Senegal, South Africa, Vietnam UN Region Central America References Facilitating Implementation and Readiness for Mitigation (FIRM)[1]

53

Costa Rica-Facilitating Implementation and Readiness for Mitigation (FIRM)  

Open Energy Info (EERE)

Costa Rica-Facilitating Implementation and Readiness for Mitigation (FIRM) Costa Rica-Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: Costa Rica-Facilitating Implementation and Readiness for Mitigation (FIRM) Name Costa Rica-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 Program End 2013 Country Costa Rica UN Region Central America References Facilitating Implementation and Readiness for Mitigation (FIRM)[1]

54

Exploring firm emergence: initially conditioned or actively created?  

Science Journals Connector (OSTI)

Previous research has established a connection between initial conditions and new firm performance. Research on the gestation activities of nascent entrepreneurs, on the other hand, has demonstrated the potential importance of active behaviours on firm emergence. Since no research has addressed the effects of these two constructs on firm emergence in an empirical fashion, we frame this paper as an exploratory study designed to answer the following research question: to what extent do initial conditions and/or active behaviours explain firm emergence? We use a French national business plan competition to identify nascent firms. As a result, it seems that only active behaviours make a statistically significant impact on firm emergence, while initial conditions do not. Therefore, our preliminary finding is that a firm emerges merely through the active behaviours of entrepreneurs rather than as an outcome of initial conditions.

Erno T. Tornikoski; Vesa Puhakka

2009-01-01T23:59:59.000Z

55

Exporting licensing regulations affecting US geothermal firms  

SciTech Connect (OSTI)

This document presents a brief introduction and overview of the Department of Commerce's Export Administration Regulations which might affect potential US geothermal goods exporters. It is intended to make US geothermal firms officials aware of the existence of such regulations and to provide them with references, contacts and phone numbers where they can obtain specific and detailed information and assistance. It must be stressed however, that the ultimate responsibility for complying with the above mentioned regulations lies with the exporter who must consult the complete version of the regulations.

Not Available

1988-08-01T23:59:59.000Z

56

Organizational Learning and Internationalization Knowledge: A Comparative Study of Family Firms and Non-Family Firms  

E-Print Network [OSTI]

1 Organizational Learning and Internationalization Knowledge: A Comparative Study of Family Firms's internationalization as a process of organizational learning is becoming frequent (Eriksson et al, 2000; Eriksson and organizational learning is deemed to underlie the process of resource commitment and more generally

Boyer, Edmond

57

Financial Fragility, Heterogeneous Firms and the Cross Section of the Business Cycle  

E-Print Network [OSTI]

.2039 0.2169 0.4301 0.2772 (0.124) (0.129) (0.153) (0.902) (0.238) (0.223) (0.001) (0.041) #22;t#0;2 -2.240 -0.193 -0.1668 -0.2585 (0.015) (0.069) (0.105) (0.018) #1;ln(gdpt) 1.053 -8.077 1.426 -10.345 1.054 -0.0798 0.9443 -0.0596 (0.000) (0.000) (0...

Holly, Sean; Santoro, E

58

The New Political Economy of Trade : : Heterogeneous Firms and Trade Policy  

E-Print Network [OSTI]

Sourcing. ’ Journal of Political Economy 112. 552-580.2009. ‘Competition and Political Organization: Together orand the Changing Political Economy of the United States. ’

Plouffe, Michael

59

The New Political Economy of Trade : : Heterogeneous Firms and Trade Policy  

E-Print Network [OSTI]

Bristol-Myers Squibb Hewlett-Packard Home Depot HSBC NorthAmerica HSBC-GR Corp Internet Security Sys Inc JPMorgan

Plouffe, Michael

60

Alliance network heterogeneity, absorptive capacity and innovation performance: a framework for mediation and moderation effects  

Science Journals Connector (OSTI)

The purpose of this paper is to present a perspective of alliance network heterogeneity, absorptive capacity and their effect on innovation performance. Although extant research recognises alliance network, network heterogeneity and absorptive capacity as predictor to innovation performance; mediation effect of network heterogeneity between innovation performance and its antecedents has been neglected. On the other hand, interaction effect of absorptive capacity has been widely researched, but these studies have not sufficiently analysed the influence of absorptive capacity on innovation performance due to conflicting results, especially regarding the multidimensional character of absorptive capacity. Present study intends to posit and set the stage for future research, whether relationship between innovation and its antecedents is mediated by firm's alliance network heterogeneity. Furthermore, we posit whether absorptive capacity acts as mediator or moderator between alliance network heterogeneity and innovation performance.

Sanjay Dhir; Aniruddha; Amita Mital

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Heterogeneous actor modeling  

Science Journals Connector (OSTI)

Complex systems demand diversity in the modeling mechanisms. This "roadmap" paper prescribes an approach to modeling based on concurrent communicating components actors), where a diversity of orchestration strategies govern the execution and interaction ... Keywords: heterogeneity, models of computation, ptolemy

Edward A. Lee

2011-10-01T23:59:59.000Z

62

"Why Are Some Firms More Innovative? Knowledge Inputs, Knowledge Stocks,  

E-Print Network [OSTI]

"Why Are Some Firms More Innovative? Knowledge Inputs, Knowledge Stocks, and the Role of Global, Exporting, Knowledge and Technological Change Abstract Why do some firms create more knowledge than others stock of knowledge. But there is very little empirical evidence on production functions for new ideas

Sadoulet, Elisabeth

63

IS Planning autonomy in US subsidiaries of multinational firms  

Science Journals Connector (OSTI)

Research has suggested that information systems planning is an important challenge to managers of multinational firms. Although studies have examined marketing, finance, and manufacturing, limited research has considered IS planning autonomy in such ... Keywords: IS planning, agency theory, autonomy, corporate governance theory, multinational firms

Dinesh A. Mirchandani; Albert L. Lederer

2004-11-01T23:59:59.000Z

64

FIRM INVESTMENT AND MONETARY POLICY TRANSMISSION IN THE EURO AREA  

E-Print Network [OSTI]

FIRM INVESTMENT AND MONETARY POLICY TRANSMISSION IN THE EURO AREA J.B. Chatelain1 , A. Generale2 of results on the monetary transmission channels on firm investment (the interest rate channel and the broad. For each of those countries, investment relationships are estimated explaining investment by its user cost

Paris-Sud XI, Université de

65

Pricing and Firm Conduct in California's Deregulated Electricity Market  

E-Print Network [OSTI]

sector to competitive forces by restructuring the method of procuring electricity. Private electricPWP-080 Pricing and Firm Conduct in California's Deregulated Electricity Market Steven L. Puller.ucei.berkeley.edu/ucei #12;Pricing and Firm Conduct in California's Deregulated Electricity Market Steven L. Puller August

California at Berkeley. University of

66

Morocco-Facilitating Implementation and Readiness for Mitigation (FIRM) |  

Open Energy Info (EERE)

Morocco-Facilitating Implementation and Readiness for Mitigation (FIRM) Morocco-Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: Morocco-Facilitating Implementation and Readiness for Mitigation (FIRM) Name Morocco-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 Program End 2013 Country Morocco UN Region Central America References Facilitating Implementation and Readiness for Mitigation (FIRM)[1] "The Government of Denmark will provide US$6 million to the new programme

67

Leading firms choose ENERGY STAR | ENERGY STAR Buildings & Plants  

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

Leading firms choose ENERGY STAR Leading firms choose ENERGY STAR Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section Why you should design to earn the ENERGY STAR Leading firms choose ENERGY STAR Why new doesn't always mean efficient Follow EPA's step-by-step process ENERGY STAR Challenge for Architects Leading firms choose ENERGY STAR Facebook data center Hundreds of leading A/E firms have already partnered

68

Vietnam-Facilitating Implementation and Readiness for Mitigation (FIRM) |  

Open Energy Info (EERE)

Vietnam-Facilitating Implementation and Readiness for Mitigation (FIRM) Vietnam-Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: Vietnam-Facilitating Implementation and Readiness for Mitigation (FIRM) Name Vietnam-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 Program End 2013 Country Vietnam UN Region Central America References Facilitating Implementation and Readiness for Mitigation (FIRM)[1] "The Government of Denmark will provide US$6 million to the new programme

69

Ghana-Facilitating Implementation and Readiness for Mitigation (FIRM) |  

Open Energy Info (EERE)

Ghana-Facilitating Implementation and Readiness for Mitigation (FIRM) Ghana-Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: Ghana-Facilitating Implementation and Readiness for Mitigation (FIRM) Name Ghana-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 Program End 2013 Country Ghana UN Region Central America References Facilitating Implementation and Readiness for Mitigation (FIRM)[1] "The Government of Denmark will provide US$6 million to the new programme

70

Mexico-Facilitating Implementation and Readiness for Mitigation (FIRM) |  

Open Energy Info (EERE)

Mexico-Facilitating Implementation and Readiness for Mitigation (FIRM) Mexico-Facilitating Implementation and Readiness for Mitigation (FIRM) Jump to: navigation, search Logo: Mexico-Facilitating Implementation and Readiness for Mitigation (FIRM) Name Mexico-Facilitating Implementation and Readiness for Mitigation (FIRM) Agency/Company /Organization United Nations Environment Programme (UNEP) Partner Global Environment Facility (GEF), Government of Denmark Sector Climate, Energy, Land Topics Adaptation, Co-benefits assessment, - Environmental and Biodiversity, Finance, Implementation, Low emission development planning Website http://www.unep.org/climatecha Program Start 2011 Program End 2013 Country Mexico UN Region Central America References Facilitating Implementation and Readiness for Mitigation (FIRM)[1] "The Government of Denmark will provide US$6 million to the new programme

71

Utility Sector Leaders Make Firm Commitment to Energy Efficiency |  

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

Utility Sector Leaders Make Firm Commitment to Energy Efficiency Utility Sector Leaders Make Firm Commitment to Energy Efficiency Utility Sector Leaders Make Firm Commitment to Energy Efficiency Utility Sector Leaders Make Firm Commitment to Energy Efficiency: Press Release, July 31, 2006 announcing an energy efficiency action plan. More than 80 energy, environmental and other organizations announced commitments and public statements in support of the National Action Plan for Energy Efficiency (NAPEE), which provides energy consumers and providers information on policies and techniques to save money as well as protect the environment. Utility Sector Leaders Make Firm Commitment to Energy Efficiency More Documents & Publications Chapter 3: Demand-Side Resources US - Brazil Binational Energy Working Group Joint Action Plan

72

Evidence of an “Energy-Management Gap” in U.S. manufacturing: Spillovers from firm management practices to energy efficiency  

Science Journals Connector (OSTI)

Abstract In this paper we merge a well-cited survey of firm management practices into confidential plant level U.S. Census manufacturing data to examine whether generic, i.e. non-energy specific, firm management practices, “spillover” to enhance energy efficiency in the United States. For U.S. manufacturing plants we find this relationship to be more nuanced than prior research on UK plants. Most management techniques are shown to have beneficial spillovers to energy efficiency, but an emphasis on generic targets, conditional on other management practices, results in spillovers that increase energy intensity. Our specification controls for industry specific effects at a detailed 6-digit NAICS level and finds the relationship between management and energy use to be strongest for firms in energy intensive industries. We interpret the empirical result that generic management practices do not necessarily spillover to improved energy performance as evidence of an “energy management gap.”

Gale A. Boyd; E. Mark Curtis

2014-01-01T23:59:59.000Z

73

Management entrenchment and the valuation discount of dual class firms  

Science Journals Connector (OSTI)

Abstract Prior studies provide empirical evidence that dual class firms are discounted compared to single class firms due to the extraction of private benefits. This study examines the link between managerial entrenchment and the dual class discount. Using propensity score matching and conditioning for past underperformance, the paper shows that investors apply a greater discount to the value of dual class firms as the degree of managerial entrenchment increases. The impact of entrenchment on dual class discount is more pronounced when the CEO is the controlling shareholder compared to when the controlling shareholder is a director or the chairman of the board.

Vishaal Baulkaran

2014-01-01T23:59:59.000Z

74

FirmGreen Energy Inc FGE | Open Energy Information  

Open Energy Info (EERE)

FirmGreen Energy Inc FGE FirmGreen Energy Inc FGE Jump to: navigation, search Name FirmGreen Energy Inc (FGE) Place Irvine, California Zip 92612 Product FirmGreen Energy Inc is an integrated energy company participating in virtually all aspects of the global green energy business. Coordinates 41.837752°, -79.268594° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.837752,"lon":-79.268594,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

75

Application of lean enterprise concept to construction firms in Japan  

E-Print Network [OSTI]

Construction firms in Japan are struggling with the change in construction industry environment and need a new business model to meet the change. On the other hand, Japanese manufacturing companies, especially automobile ...

Taguchi, Hiroshi, 1973-

2004-01-01T23:59:59.000Z

76

When governments break contracts : foreign firms in emerging economies  

E-Print Network [OSTI]

Emerging economy governments commit to protect the property rights of foreign firms through a variety of contracts, from treaties to direct agreements. In an era of liberalized capital flows, these contracts are thought ...

Wellhausen, Rachel L. (Rachel Louise)

2012-01-01T23:59:59.000Z

77

Green Buildings: Construction Design Firms' Implementation of Sustainable Design Standards  

E-Print Network [OSTI]

This paper is written to show the importance of green buildings and therefore the need for sustainable design. The paper describes why a construction design firm must take the steps necessary to properly integrate these sustainable design standards...

Malone, Nathan

2008-12-19T23:59:59.000Z

78

The influence of institutional investors on firm value  

E-Print Network [OSTI]

The impact of corporate governance on firm value has been extensively debated by academics and business practitioners. Some studies show that companies that allow minority shareholders to have more control are likely to ...

Lee, Yong Seung

2013-01-01T23:59:59.000Z

79

An artificial neural network-based DSS to prioritise information technology and its complementary investments in industrial firms  

Science Journals Connector (OSTI)

The impact of IT usage on performance and other organisation's outputs is an important issue for both practitioners and academics. Evidence shows that despite a vast percentage of firm's budget which has spent on IT is continuing increasingly, there are some failures of firms in obtaining the benefits of these expenditures within expected period. To solve this problem, managers have to consider complementary investments. In this paper a decision support system is developed for prioritising investments on the information technology (IT) and its complementary investment using data of 102 car part suppliers in Iran. This software is developed using an artificial neural network and results are validated finally. One of the main specifications of this DSS is investigating on IT aspects at the firm level, which can help top management during decision making process to allocate budget properly in the most significant aspects of IT investment inside their own company.

Abbas Keramati; Navid Mojir; Masoud Afshari-Mofrad; Iman Jahanandish; Ali Derakhshani

2012-01-01T23:59:59.000Z

80

How memory generates heterogeneous dynamics in temporal networks  

E-Print Network [OSTI]

Empirical temporal networks display strong heterogeneities in their dynamics, which profoundly affect processes taking place on these networks, such as rumor and epidemic spreading. Despite the recent wealth of data on temporal networks, little work has been devoted to the understanding of how such heterogeneities can emerge from microscopic mechanisms at the level of nodes and links. Here we show that long-term memory effects are present in the creation and disappearance of links in empirical networks. We thus consider a simple generative modeling framework for temporal networks able to incorporate these memory mechanisms. This allows us to study separately the role of each of these mechanisms in the emergence of heterogeneous network dynamics. In particular, we show analytically and numerically how heterogeneous distributions of contact durations, of inter-contact durations and of numbers of contacts per link emerge. We also study the individual effect of heterogeneities on dynamical processes, such as the ...

Vestergaard, Christian L; Barrat, Alain

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Do Campaign Contributions and Lobbying Expenditures by Firms Create “Political” Capital?  

Science Journals Connector (OSTI)

We examine the relation between a firm’s campaign contributions and lobbying expenditures and its Tobin’s q. We follow other studies that use q...to measure the value of the firm’s intangible capital (e.g., the v...

Philip Hersch; Jeffry M. Netter; Christopher Pope

2008-12-01T23:59:59.000Z

82

Investment in Energy Efficiency by Small and Medium-Sized Firms: An Empirical Analysis of the Adoption of Process Improvement Recommendations.  

E-Print Network [OSTI]

firms under the Industrial Assessment Centers (IAC) programsized firms by Industrial Assessment Centers (IAC) program

Muthulingam, S.; Corbett, C. J.; Benartzi, S.; Oppenheim, B.

2011-01-01T23:59:59.000Z

83

Strategic alliance announcements and new venture stock market returns: signaling and resource-based perspectives on the effects of partner firm, new venture firm, and alliance characteristics  

E-Print Network [OSTI]

Firms form marketing and technology alliances to access other firms’ resources, and these alliances act as signals to investors. Investors use these signals to adjust expectations about new venture performance prospects, but our understanding...

Holmes Jr, Robert Michael

2009-05-15T23:59:59.000Z

84

Utility Sector Leaders Make Firm Commitment to Energy Efficiency |  

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

Utility Sector Leaders Make Firm Commitment to Energy Efficiency Utility Sector Leaders Make Firm Commitment to Energy Efficiency Utility Sector Leaders Make Firm Commitment to Energy Efficiency July 31, 2006 - 9:30am Addthis (San Francisco, Calif. - July 31, 2006) More than 80 energy, environmental and other organizations announced commitments and public statements in support of the National Action Plan for Energy Efficiency (NAPEE), released today, which provides energy consumers and providers information on policies and techniques to save money as well as protect the environment. By adopting the plan's recommendations on low-cost, under-used energy efficiency, Americans could save hundreds of billions of dollars on their gas and electric utility bills, cut greenhouse gas emissions, and lower the costs for energy and pollution controls.

85

The effect of firming agents on quality of parthenocarpic and normal fresh-pack pickles  

E-Print Network [OSTI]

for these training sessions. The panel rated the pickles using a 10- Point hedonic scale for appearance, flavor, texture and overall 15 acceptance. The score card is shown as Fig. 1. Samples were coded with random 3-digit numbers. The pickles were opened, drained... was generally scored above 7 on a 10-point hedonic scale, would be acceptable to the consumer. The effect of firming agents on texture scores is graphically shown in Fig. 4, 5, and 6. A significant interaction was found between salt and treatment level...

Longan, Bobby Jeff

2012-06-07T23:59:59.000Z

86

Tomographic Characterization of Aquifer Heterogeneity  

E-Print Network [OSTI]

that extend the 3D homogenous spherical radial equation to the heterogeneous case. A numerical model was used to check the heterogeneous extension for accuracy. High quality zero-offset profile ray paths (ZOP) were used to determine hydraulic conductivity, K...

Lyle, Shane

2011-05-31T23:59:59.000Z

87

1. Introduction Alanine-based ionizing radiation dosimetry is firmly  

E-Print Network [OSTI]

1. Introduction Alanine-based ionizing radiation dosimetry is firmly woven into the fabric of high-dose System and Its Implications in High-Dose Ionizing Radiation Metrology Volume 113 Number 2 March.g., radiochromic dosimetry). From the NMI's perspective, the broad absorbed- dose range of the alanine system

88

Machinery sharing by agribusiness firms: methodology, application, and simulation  

E-Print Network [OSTI]

entering into a joint machinery ownership contract are examined. Two, two-player models, a Nash equilibrium game theoretical model and an applied two-farm simulation model are used to determine impacts of machinery sharing on firms engaged in machinery...

Wolfley, Jared Lynn

2009-05-15T23:59:59.000Z

89

Tax aggressiveness, R&D spending, and firms’ claims for R&D tax deductions.  

E-Print Network [OSTI]

??Using proprietary data obtained from a local tax office in China, I examine how tax aggressiveness affects a firm’s incentive to claim for R&D tax… (more)

Wang, Zitian.

2013-01-01T23:59:59.000Z

90

Carbon Fund for Spanish Firms FC2E | Open Energy Information  

Open Energy Info (EERE)

for Spanish Firms FC2E Jump to: navigation, search Name: Carbon Fund for Spanish Firms (FC2E) Place: Spain Sector: Carbon Product: String representation "Instituto de Cr ... from...

91

Energy Department Advances Market Access for U.S. Firms in Chinese...  

Office of Environmental Management (EM)

Energy Department Advances Market Access for U.S. Firms in Chinese Energy Efficiency Sector Energy Department Advances Market Access for U.S. Firms in Chinese Energy Efficiency...

92

Are Foreign Firms Privileged By Their Host Governments? Evidence From The 2000 World Business Environment Survey  

E-Print Network [OSTI]

Using the data from World Business Environment Survey (WBES) on over 10,000 firms across eighty one countries, this paper finds preliminary evidence that foreign firms enjoy significant regulatory advantages - as perceived ...

Huang, Yasheng

2005-06-03T23:59:59.000Z

93

Racial Bias in the Manager-Employee Relationship: An Analysis of Quits, Dismissals, and Promotions at a Large Retail Firm  

E-Print Network [OSTI]

and Promotions at a Large Retail Firm Laura Giulianodata from a large U.S. retail firm, we examine how raciala large national U.S. retail firm, we examine how racial

Giuliano, Laura; Levine, David I.; Leonard, Jonathan

2009-01-01T23:59:59.000Z

94

Incentive Price Revision Firm Target UT-B Contracts Div Page 1 of 2  

E-Print Network [OSTI]

Incentive Price Revision ­ Firm Target UT-B Contracts Div Jan 2006 Page 1 of 2 incent-price-rev-firm-ext-utbx-jan06.doc INCENTIVE PRICE REVISION - FIRM TARGET (Jan 2006) (a) General. The supplies or services identified in the Agreement as item numbers __________ are subject to price revision in accordance

Pennycook, Steve

95

Investment and capitalisation of firms in the USA  

Science Journals Connector (OSTI)

In the USA today, the precipitous rise of new financial mechanisms for capitalisation of firms as well as the merger and acquisition of others, especially risk equity capital through venture capitalist and investment banking, has sparked growth and helped to bring the economy out of the 1990s recession into a robust continuous growth pattern well positioned for the next century. The scenario is not new. For the venture capitalists of ''Silicon Valley'' in California, the experience is not new. They have seen the new industries arise before, like a phoenix from ashes of ruin, despair and even failure. Venture capital poured into high tech start-up companies has been an enormous source of financial support for the entrepreneurs who head new and growing companies. The mid-1990s marked the most dramatic increase yet recorded. Indicators, such as the NASDAQ document, outlined the solid and continuous growth in high tech industries. The paper discusses investment in US corporations within the context of governance and management of the company. Discussion about the various forms of finance are related to the organisation and management of the US corporation. Critical to any firm today are its ability to find innovative, new products or services. A growing literature on resource-base framework for analysis will be discussed as part of the firm's development of research for commercialisation. The results of a recent survey further shed light on the relationship between corporate financial management and allocated resources for research and development as the ''engine'' for new product development and therefore corporate market share and growth. The conclusion is that more financial mechanisms will be created and changed within US corporate systems to adjust, grow, and expand companies in the global economic arena, as the inevitable economic pattern leads to mergers, consolidations, and increasing cooperation and alliances among firms.

Woodrow W. Clark II; Istemi Demrig

2002-01-01T23:59:59.000Z

96

Renewal-anomalous-heterogeneous files  

E-Print Network [OSTI]

Renewal-anomalous-heterogeneous files are solved. A simple file is made of Brownian hard spheres that diffuse stochastically in an effective 1D channel. Generally, Brownian files are heterogeneous: the spheres' diffusion coefficients are distributed and the initial spheres' density is non-uniform. In renewal-anomalous files, the distribution of waiting times for individual jumps is exponential as in Brownian files, yet obeys: {\\psi}_{\\alpha} (t)~t^(-1-{\\alpha}), 0renewal as all the particles attempt to jump at the same time. It is shown that the mean square displacement (MSD) in a renewal-anomalous-heterogeneous file, , obeys, ~[_{nrml}]^{\\alpha}, where _{nrml} is the MSD in the corresponding Brownian file. This scaling is an outcome of an exact relation (derived here) connecting probability density functions of Brownian files and renewal-anomalous files. It is also shown that non-renewal-anomalous files are slower than the corresponding renewal ones.

Ophir Flomenbom

2010-08-13T23:59:59.000Z

97

Impact of the life sciences on organisation and management of R&D in large pharmaceutical firms  

Science Journals Connector (OSTI)

The life sciences are having a significant impact on the organisation and management of R&D in large pharmaceutical firms, as well as restructuring the markets for new therapeutic products. However, there is continuing scepticism about large firms' ability or inclination to build in-house capacity for biologics and extract value from the life sciences. This paper explores the effect of life science innovation on early and late-stage R&D, and considers the implications for strategic management and the transition of compounds through the middle stages of the R&D pathway. The analysis, which includes two company case studies, reveals that new life science technologies have had a marginal impact on late-stage R&D, but companies are exploring new organisational or translational models to better exploit the science and reduce the phase 2 attrition rates. Findings suggest that firms have the capability to adapt to a new innovation trajectory, but external pressures on strategic and organisational management will continue to determine the level and rate of success.

James Mittra

2008-01-01T23:59:59.000Z

98

Molecular ingredients of heterogeneous catalysis  

SciTech Connect (OSTI)

The purpose of this paper is to present a review and status report to those in theoretical chemistry of the rapidly developing surface science of heterogeneous catalysis. The art of catalysis is developing into science. This profound change provides one with opportunities not only to understand the molecular ingredients of important catalytic systems but also to develop new and improved catalyst. The participation of theorists to find answers to important questions is sorely needed for the sound development of the field. It is the authors hope that some of the outstanding problems of heterogeneous catalysis that are identified in this paper will be investigated. For this purpose the paper is divided into several sections. The brief Introduction to the methodology and recent results of the surface science of heterogeneous catalysis is followed by a review of the concepts of heterogeneous catalysis. Then, the experimental results that identified the three molecular ingredients of catalysis, structure, carbonaceous deposit and the oxidation state of surface atoms are described. Each section is closed with a summary and a list of problems that require theoretical and experimental scrutiny. Finally attempts to build new catalyst systems and the theoretical and experimental problems that appeared in the course of this research are described.

Somorjai, G.A.

1982-06-01T23:59:59.000Z

99

Capital budgeting methods, management control systems and the R&D intensity of the firm  

Science Journals Connector (OSTI)

This paper investigates the effect of the Research and Development (R&D) intensity of the firm on the use of management control systems, capital budgeting methods and the methods to determine the cost of capital. Based on earlier literature, we develop several hypotheses that we test empirically, using survey data of the 101 Finnish firms operating in the capital area. The results indicate that the use of management control systems such as control and bonus systems, budgeting and strategic alliances increases with the degree of the R&D intensity of the firm. The results also indicate that high-R&D-intensity firms use formal capital budgeting methods within large and strategic projects. Finally, our results show that the use of sophisticated capital budgeting methods such as Net Present Value (NPV) and Internal Rate of Return (IRR) methods increases with the R&D intensity of the firm. Our results remain materially the same after controlling for several firm characteristics.

Hanna Silvola

2008-01-01T23:59:59.000Z

100

The debt agency costs of family ownership in small and micro firms  

Science Journals Connector (OSTI)

This study investigates the impact that family ownership has on loan availability and credit terms. It differs from existing literature by investigating the impact of family ownership on loan availability and credit terms in small and micro firms. Our results suggest that loan availability becomes weaker when family ownership increases. Collateral requirements increase with family ownership, but contrary to previous studies we find no effect on interest rates. These results suggest that there are agency costs involved with family ownership. We also find that the impact of other attributes that affect loan availability or credit terms is different for family firms. Our results suggest that an increase in firm age improves loan availability and reduces collateral requirements only for the non-family firms. We also find that while an increase in profitability improves loan availability for all firms, it reduces interest rates and collateral requirements only for family firms.

Mervi Niskanen; Jyrki Niskanen; Virpi Laukkanen

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

From the Heterogeneity Jungle to Systematic Benchmarking  

Science Journals Connector (OSTI)

One of the key challenges in the development of model transformations is the resolution of recurring semantic and syntactic heterogeneities. Thus, we provide a systematic classification of heterogeneities buil...

M. Wimmer; G. Kappel; A. Kusel; W. Retschitzegger…

2011-01-01T23:59:59.000Z

102

Chapter 13 - Heterogeneous Catalysts and Biomass Conversion  

Science Journals Connector (OSTI)

Abstract The application of heterogeneous catalysts to conversion processes based on biomasses is described and discussed. The role of heterogeneous catalysts in the development of renewable industrial chemistry is emphasized.

Guido Busca

2014-01-01T23:59:59.000Z

103

A framework for an innovative knowledge management system in knowlegde-based firms.  

E-Print Network [OSTI]

??This study examined how a knowledge management system can bring innovative behaviour to a knowledge based firm. The study developed a framework for such a… (more)

Lindner, Eli

2014-01-01T23:59:59.000Z

104

The association between research and development expenditure and firm performance: testing a life cycle hypothesis  

Science Journals Connector (OSTI)

Although prior studies provide evidence that investment in research and development (R&D) expenditure enhances a firm's performance, very little evidence is available on the impact of a firm's life cycle stages on the association between R&D expenditures and firm performance. We classify firms into three-life cycle stages, namely, growth, mature and stagnant, and choose four-life cycle classification variables which are dividends, sales growth, capital expenditure and firm age. Using 769-firm-year observations over a period of 11-years in Australia, we find that the abnormal returns to unexpected expensed R&D amounts are significantly negative. Further, our results suggest that market reaction to expensed R&D is more negatively pronounced during the stagnant phase of a firm's life cycle, suggesting that the market perceives that firms have limited prospects to derive benefits arising out of expensed R&D expenditures. The results suggest that the relationship between performance and investment in R&D is not linear but is moderated by a firm's life cycle which should be taken into account when making policy that is based on stock-based performance.

Kamran Ahmed; Mohammed Jinan

2011-01-01T23:59:59.000Z

105

Financial liberalisation and the capital structure of firms listed on the Johannesburg stock exchange.  

E-Print Network [OSTI]

??This thesis examines the impact of financial liberalisation on the capital structure of non-financial firms listed on the Johannesburg Stock Exchange (JSE). The research hypotheses… (more)

Chipeta, Chimwemwe

2012-01-01T23:59:59.000Z

106

The returns to bidding firms in corporate takeovers: splitting up the pie  

Science Journals Connector (OSTI)

In this paper, we examined the impact of ownership concentration in target firms on the returns to shareholders of bidding firms. In this research, we found that shareholders of bidding earn statistically significant positive abnormal returns surrounding takeover announcements. In addition, we found bidder returns of 4% over the event-window [?20, +20]. We showed that the degree of ownership concentration in target firms – measured by the Herfindahl-concentration index – significantly and positively affects the returns to bidding firms. These findings are consistent with the predictions of Grossman and Hart (1980), Bagnoli and Lipman (1988) and Holmstrom and Nalebuff (1992) takeover models.

Han Donker; Saif Zahir

2009-01-01T23:59:59.000Z

107

Offshore Wind Power - Opportunity and strategy for a small engineering consultants firm.  

E-Print Network [OSTI]

??GVA is a small engineering consultancy firm, with specialized focus in design of floating structures such as oil production platforms. The key business is at… (more)

Jobson Sellström, Carin

2010-01-01T23:59:59.000Z

108

Strategic view of alliance strategy: the impact of alliance type on firm profitability.  

E-Print Network [OSTI]

??This study attempts to determine how strategic alliances impact firm performance. The degree of alliance impact is theorized to be dependent on the type of… (more)

Marsh, Laurence A

2010-01-01T23:59:59.000Z

109

SF6432-FP (02-01-12) Firm Fixed Price  

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

2/01/12 2/01/12 Page 1 of 21 Printed copies of this document are uncontrolled. Retrieve latest version electronically. SANDIA CORPORATION SF 6432-FP (02/01/12) Section II STANDARD TERMS AND CONDITIONS FOR FIRM-FIXED PRICE CONTRACTS THE FOLLOWING CLAUSES APPLY TO THIS CONTRACT AS INDICATED UNLESS SPECIFICALLY DELETED, OR EXCEPT TO THE EXTENT THEY ARE SPECIFICALLY SUPPLEMENTED OR AMENDED IN WRITING IN THE COVER PAGE OR SECTION I. (CTRL+CLICK ON A LINK BELOW TO ADVANCE DIRECTLY TO THAT SECTION) ACCEPTANCE OF TERMS AND CONDITIONS (Ts&Cs) APPLICABLE LAW ASSIGNMENT BANKRUPTCY DEFINITIONS DISPUTES EXCESS FREIGHT CHARGES EXCUSABLE DELAYS EXPORT CONTROL EXTRAS AND VARIATION IN QUANTITY GOVERNMENT PROPERTY MATERIAL AND EQUIPMENT MANUFACTURING AND TESTING STANDARDS

110

Foreign firms to get equal opportunity in Mexican selloff plans  

SciTech Connect (OSTI)

Petroleos Mexicanos (Pemex) has not finalized details of its long-awaited petrochemical privatization program. However, the state oil group has made it clear the selloff schedule, due to begin during the next two months, will give equal investment opportunity to foreign firms, dashing the hopes of Mexican groups that they would be given first right of refusal in the privatization program. Meanwhile, Pemex has agreed with Shell Oil on a previously announced refining joint venture involving Shell's 225,000-bbl/day refinery at Deer Park, TX. Under the plan, Pemex will purchase a 50% stake in the refinery and join Shell in a $1-billion upgrade with would enable it to handle more Mexican crude. Sources believe that Shell and other US oil groups are interested in acquiring assets from Pemex Petroquimica.

Wood, A.; Alvarez, C.

1993-03-17T23:59:59.000Z

111

Does R&D intensity influence leverage? Evidence from Indian firm-level data  

Science Journals Connector (OSTI)

The paper examines the association between corporate leverage and their investment in R&D. Towards this end, it develops certain testable propositions. These propositions are tested using a dataset of manufact...

Saibal Ghosh

2012-06-01T23:59:59.000Z

112

Essays on regional and firm-level productivity, military spending, and technology  

E-Print Network [OSTI]

COMPUSTAT ALLIEDSIGNAL (now Honeywell) AIRCRAFT PARTS, AUXOFFICE EQUIPMENT HONEYWELL INC (pre 1999) AUTOMATICGeneral Electric TRW Inc Honeywell Inc- AlliedSignal Textron

Goudie, Bryan Daniel

2008-01-01T23:59:59.000Z

113

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

114

When should a firm use billboard advertising? A conceptual look at differing levels of recall  

Science Journals Connector (OSTI)

Billboards are often used because the cost to reach consumers is relatively cheaper than other forms of media. However, just because a billboard ad reaches a consumer does not mean a consumer pays attention to the ad or even processes it. Therefore, in this paper, two constructs are proposed to help managers evaluate the type of product or service they sell and if billboards would be the most effective way of reaching the target audience. A model and matrix outlining the hypothesised differences in billboard advertising are presented.

Scott Wysong; Sri Beldona

2004-01-01T23:59:59.000Z

115

Description of FLIPSIM V: a General Firm Level Policy Simulation Model.  

E-Print Network [OSTI]

) determined by a OP which maximizes expected utility~ Expected net returns are ca1culated using a weighted average of past yields and prices, modified for relevant loan rates, target prices, expected disaster or crop insurance payments , and acreage set... in this section of the model are being planned. 5 The farm programs in the model are activated separately by options specified by the analyst. When the net loan rate (price support) for a crop is greater than its market price, the operator's share of the crop...

Richardson, James W.; Nixon, Clair J.

1986-01-01T23:59:59.000Z

116

Modeling individual-level heterogeneity in racial residential segregation  

Science Journals Connector (OSTI)

...in their homes by trained interviewers. More than 8,900 household interviews were completed in the four metropolitan...Class-specific average racial attitudes from pooled data Non-Hispanic whites’ rating of blacks Class membership Economic poverty...

Yu Xie; Xiang Zhou

2012-01-01T23:59:59.000Z

117

Micro-level learning and alliance portfolio performance  

Science Journals Connector (OSTI)

This study examines learning mechanisms to explain why some firms extract superior economic rents from their alliance portfolios. In particular, we examine the relationship between alliance experience and the use of learning mechanisms, as well as the impact of learning mechanisms on a firm's capability to manage alliance portfolios. The results are based on a detailed survey among 192 alliance managers and Vice-Presidents reporting on over 3400 alliances initiated over the period 1997â??2001. The empirical findings reveal what micro-level learning mechanisms contribute to manage alliance portfolios successfully and empirically validate how lessons from prior alliances can be leveraged across a firm's entire alliance portfolio.

Koen H. Heimeriks

2010-01-01T23:59:59.000Z

118

The growth of Quebec's biotechnology firms and the implications of underinvestment in strategic competencies  

Science Journals Connector (OSTI)

This paper examines the problem of human resources access for biotechnology firms in Quebec. The results of a survey conducted with 124 biotechnology firm managers document that access to human resources is a sizable challenge, the second most important issue facing these firms, after financing. The results further indicate that while firm managers are preoccupied by the skills and competencies of human resources and recognise its importance, the scarcity of available headcount in the market, coupled with firm growth management imperatives, are a key limiting factor in the development of the firms' competencies. In this study, a strategic competence model is applied to understand the contribution of human resources to the management process of biotechnology firms. In particular, we formulate the working hypothesis that firms engage in fierce competition in the input market for scientific, technological, and management competencies. A systems archetype is used to illustrate the tradeoff between short-term financial priorities and the need for capacity building, whose ''tangible'' benefits will only be measured in the long term.

Michel Delorme; L. Martin Cloutier

2005-01-01T23:59:59.000Z

119

THE BLIND SPOT OF CORPORATE SOCIAL RESPONSIBILITY: CHANGING THE LEGAL FRAMEWORK OF THE FIRM  

E-Print Network [OSTI]

and their corporate purposes. Such innovations suggest that management science research should study how to improve OF THE FIRM Kevin LEVILLAIN, Blanche SEGRESTIN Center for Management Research, MINES Paris behaviour is compatible with the legal framework of the firm and its standard strategic approaches. Could

Paris-Sud XI, Université de

120

State Multinationals: The Impact of State Ownership on International Diversification and Firm Performance  

E-Print Network [OSTI]

Summary ............................................................................................ 107 IV METHODOLOGY ................................................................................... 109 Sample Selection...?s international expansion (the number of foreign countries where the firm has subsidiaries) (Kogut & Singh, 1988; Reuer & Leiblein, 2000) to describe the degree of multinationality (DOM). My dataset consists of firms with a minimum DOM of owning at least 50...

He, Xiaoming

2011-10-21T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Experiments and analysis for an axially heterogeneous liquid-metal reactor assembly at the zero-power physics reactor  

SciTech Connect (OSTI)

Experiments in zero-power physics reactor 17 provided physics data for a full-scale axially heterogeneous 650-MW(electric) liquid-metal reactor. Measurements and analysis are reported for control rod worths, reaction rate distributions, gamma dose distributions, sodium void worths, and criticality. Agreement between measurement and calculation is generally satisfactory, but the axial heterogeneity did introduce analytical complications. Design-level calculation methods gave somewhat worse agreement with measurement than in previous homogeneous or radially heterogeneous assemblies.

Brumbach, S.B.; Collins, P.J. (Argonne National Lab., Idaho Falls, ID (USA))

1989-11-01T23:59:59.000Z

122

Building up a firm's commercialisation competence: from product concept to the first reference  

Science Journals Connector (OSTI)

This study examines the build-up of commercialisation competence when a firm moves from concept development to the first customer reference. During this period, substantial learning on commercialisation occurs as the firm develops an understanding of the fit between the business environment and the new product, which helps the firm improve its strategic marketing decisions. This process builds the innovator firm's commercialisation competence which makes it possible for the firm to succeed in acquiring the first reference. The study draws on the literature on innovation management concerning innovation competence, commercialisation of innovations, and reference marketing. Employing qualitative multiple case analysis, this study generates a dynamic model for commercialisation competence build-up and identifies strategic marketing, market preparation/creation and sales creation as key competence groups for commercialisation with a total of 14 sub-competences. The developed framework serves as a managerial tool to determine critical steps in commercialisation and the required commercialisation competences.

Leena Aarikka-Stenroos; Tuula Lehtimäki

2013-01-01T23:59:59.000Z

123

Does corporate ownership structure affect firms' environmental performance? Evidence in the European energy industry  

Science Journals Connector (OSTI)

The present paper aims to explore the mutual influence existing between corporate ownership structure and firms' environmental performance. The attention is focused on the energy industry, that represents one of the industries with the highest environmental impact and that, in the last few years, has been forced to increase efforts towards green issues. In particular, the introduction of vertical unbundling in electricity and gas markets provides the opportunity to concentrate the attention on European energy companies operating in service activities, in which it is possible to better understand firms' environmental performance. The study, performing a linear regression model, examines the explanatory power of corporate governance issues, in particular firms' ownership structure, as potential determinants of companies' environmental performance. The results show that firms with more diffuse ownership present the worst environmental performance, while greater stakes held by institutional investors or by the state do not seem to be related with firms' green performance.

Francesco Calza; Giorgia Profumo; Ilaria Tutore

2013-01-01T23:59:59.000Z

124

How do different motives for R&D cooperation affect firm performance? – An analysis based on Swiss micro data  

Science Journals Connector (OSTI)

The starting point of our analysis is the empirical fact that firms pursue different goals when getting engaged in R&D collaborations, often more than one goal at the same time. Given that firms are driven by ...

Spyros Arvanitis

2012-11-01T23:59:59.000Z

125

Heterogeneous Systems Testing Techniques: An Exploratory Survey.  

E-Print Network [OSTI]

??Heterogeneous systems comprising sets of inherent subsystems are challenging to integrate. In particular, testing for interoperability and conformance is a challenge. Furthermore, the complexities of… (more)

Ghazi, Ahmad; Petersen, Kai

2015-01-01T23:59:59.000Z

126

Fractal Networks Explain Regional Myocardial Flow Heterogeneity  

Science Journals Connector (OSTI)

Regional myocardial blood flow is very heterogeneous. This has been found by injection of radioactively labeled microspheres, or the “molecular microsphere” iododesmethylimipramine, and measuring the depositio...

Johannes H. G. M. van Beek; James B. Bassingthwaighte…

1989-01-01T23:59:59.000Z

127

Proactive cooperation with strangers: Enhancing complexity of the ICT firms' alliance portfolio and their innovativeness  

Science Journals Connector (OSTI)

Abstract This study explores links among firms' cooperation strategy, the complexity of their alliance portfolio, and their innovativeness in the context of the ICT industry in emerging market. Alliance portfolio formation has been increasingly recognized as a major element influencing firms' performance as well as innovativeness. However, little attention has been focused thus far on methods of alliance portfolio creation and its impact on the complexity of alliance portfolio or firms' innovativeness. This study aims to fill this gap by analyzing the impact of cooperation forming (both market-focused strategy and relationship-focused strategy) as well as managers' proactiveness and trust on the complexity of alliance portfolio and, consequently, on firms' innovativeness. The empirical models are examined using data collected in 146 firms (SME) from the ICT industry and 4006 ties in their alliance portfolios. The results suggest that a proactive, market-focused cooperation strategy (proactively searching for and selecting “strangers” from the market as potential partners) positively affects the complexity of alliance portfolio (specifically: functional, geographic, governance complexity, as well as a number of ties) and might enhance firms' innovativeness. However, relying on friends, acquaintances, and their recommendations in partnership forming might result in decreasing the alliance portfolio complexity. Moreover, managers' trust in existing partners seems not to be of crucial importance when creating diverse and complex alliance portfolios. In other words, existing ties that bind can also blind and might limit the possibility of creating of numerous, diverse partnerships and, consequently, reduce firms' innovativeness.

Monika Golonka

2014-01-01T23:59:59.000Z

128

Apple Maturity Protocol Tests for apple flesh firmness and starch conversion are important tools for monitoring crop  

E-Print Network [OSTI]

Apple Maturity Protocol Tests for apple flesh firmness and starch conversion are important tools for monitoring crop maturity. Flesh firmness, as measured with a pressure gauge, determines how long apples can adequate firmness for fresh market or processing uses. A second common assay for apple maturity

129

The effects of the split share structure reform on Chinese listed firms’ leverage decisions  

Science Journals Connector (OSTI)

Abstract This paper examines the effects of China's split share structure reform on the leverage decisions of listed firms. The results show that there are two effects, multiple large shareholders and liquidity that affect the leverage ratio. In non-state controlled firms, multiple large shareholders are able to monitor the controlling shareholders which reduce the leverage ratio. However, in state-controlled firms, they collude with the controlling shareholders to expropriate through debt financing. State ownership plays a decisive role in driving multiple large shareholders to collude with the controlling shareholders.

Han-Fang Tsai; Tsui-Jung Lin; Jung-Hua Hung

2014-01-01T23:59:59.000Z

130

A comparative study of the alliance experiences between US and Taiwanese firms  

Science Journals Connector (OSTI)

The major purpose of this study is to conduct a comparative analysis between US and Taiwanese firms for examining similarities and differences of their alliance experiences. The results indicate that first, US and Taiwanese firms have different alliance behaviours in the choice of alliance form and alliance type. Secondly, in general, the intensity of formation motive and partner interaction is positively related to the alliance performance while interfirm diversity plays a negative role in affecting the alliance performance. However, alliance performance of both US and Taiwanese firms is affected by different patterns of alliance form, formation motive and interfirm diversity.

Chung-Jen Chen; Wann-Yih Wu

2005-01-01T23:59:59.000Z

131

Proposals in for Czech firms; cooperation likely with eastern Germany  

SciTech Connect (OSTI)

Two Western groups - Shell and a consortium made up of Agip, Conoco, and Total - have offered to buy the refining operations of Chemopetrol Litvinov and Kaucuk Kralupy, both in the Czech republic. Meanwhile, Amoco, Neste, and PCD are looking at the possibility of acquiring some of the plastics plants at Litvinov. Amoco is interested in the polypropylene operations, Neste in polyethylene, and PCD in both. The two Czech firms are included in the second wave of privatization, which will begin in midyear. So far, there have been no offers for the 80,000-m.t./year polystyrene and 60,000-m.t./year styrene butadiene rubber operations belonging to Kralupy, although Atochem representatives recently visited the plants. Litvinov is carrying out revamping operations at its core unit, a 12-year-old, 450,000-m.t./year ethylene plant. The plant, currently running at 400,000 m.t./year, supplies downstream plants, Neratovice, and sells on the export markets. An existing ethylene pipeline between Litvinov and Bohlen in eastern Germany, which used to supply an average 100,000 m.t./year of ethylene to Bohen in exchange for naphtha, is virtually unused. One proposal involves reactivating this exchange to secure ethylene feedstock for plants in eastern Germany. According to some sources, a preliminary decision has been made to shut down the 100,000-m.t./year ethylene plant at Leuna and possibly to expand the Bohlen cracker by 100,000 m.t./year, to 400,000 m.t./year by the late 1990s.

Alperowicz, N.

1993-02-10T23:59:59.000Z

132

Heterogeneous Reburning By Mixed Fuels  

SciTech Connect (OSTI)

Recent studies of heterogeneous reburning, i.e., reburning involving a coal-derived char, have elucidated its variables, kinetics and mechanisms that are valuable to the development of a highly efficient reburning process. Young lignite chars contain catalysts that not only reduce NO, but they also reduce HCN that is an important intermediate that recycles to NO in the burnout zone. Gaseous CO scavenges the surface oxides that are formed during NO reduction, regenerating the active sites on the char surface. Based on this mechanistic information, cost-effective mixed fuels containing these multiple features has been designed and tested in a simulated reburning apparatus. Remarkably high reduction of NO and HCN has been observed and it is anticipated that mixed fuel will remove 85% of NO in a three-stage reburning process.

Anderson Hall

2009-03-31T23:59:59.000Z

133

Task and Machine Heterogeneities: Higher Moments Matter  

E-Print Network [OSTI]

Task and Machine Heterogeneities: Higher Moments Matter Abdulla M. Al-Qawasmeh 1 , Anthony A.potter}@colostate.edu jtsmith@digitalglobe.com Abstract - One type of heterogeneous computing (HC) systems consists of machines in this matrix represents the ETC of a specific task on a specific machine when executed exclusively. Heuristics

Maciejewski, Anthony A.

134

The relationship between technology-based and product-based knowledge and alliance formation in new firms  

Science Journals Connector (OSTI)

Firms are typically viewed as seeking alliances to achieve certain outcomes, advantages they perceive will result from these relationships. Our research investigates whether certain inputs, specifically knowledge, can explain differential alliance formation. Our empirical analysis of 67 new computer and telecommunications firms reveals that firms with more extensive technology-based and product-based knowledge are more likely to form alliances at a higher rate than those with less extensive knowledge. The implications for these findings are that alliances are more attractive to firms with a foundation of knowledge that can be leveraged, and firms with this knowledge have something of value to attract alliance partners.

Donna J. Kelley; Mark P. Rice; Lois S. Peters

2001-01-01T23:59:59.000Z

135

U.S. Department of Energy Selects Venture Capital Firms to Accelerate  

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

Venture Capital Firms to Venture Capital Firms to Accelerate Adoption of Advanced Energy Technologies U.S. Department of Energy Selects Venture Capital Firms to Accelerate Adoption of Advanced Energy Technologies February 27, 2008 - 11:43am Addthis SAN FRANCISCO, CA - U.S. Department of Energy (DOE) Assistant Secretary for Energy Efficiency and Renewable Energy Alexander Karsner today announced the competitive selection of three venture capital firms to participate in DOE's newly established Entrepreneur in Residence (EIR) pilot program, which aims to accelerate deployment and commercialization of advanced clean energy technologies from three DOE National Laboratories into the global marketplace. The EIR pilot program furthers President Bush's comprehensive strategy to reduce our nation's dependence on foreign oil and

136

Secretary Chu to Tour Leading Solar Firm in Boston Area | Department of  

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

Secretary Chu to Tour Leading Solar Firm in Boston Area Secretary Chu to Tour Leading Solar Firm in Boston Area Secretary Chu to Tour Leading Solar Firm in Boston Area December 1, 2010 - 12:00am Addthis Washington, DC - On Thursday, December 2, 2010, US Energy Secretary Steven Chu will be joined by Dr. Arun Majumdar, ARPA-E Director, to tour 1366 Technologies, a leading solar technology firm that is developing more cost efficient solar panels. 1366 received a $4 million Recovery Act grant through the Department of Energy's Advance Research Project Agency-Energy (ARPA-E) program in October 2009. 1366 is a shining star, real example showcasing Boston as a leader in the clean energy sector. Since receiving the Recovery Act funds 1366 Technologies has made rapid technical progress towards its goal of halving the cost of solar energy. It has also hired 15

137

Secretary Chu to Tour Leading Solar Firm in Boston Area | Department of  

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

Tour Leading Solar Firm in Boston Area Tour Leading Solar Firm in Boston Area Secretary Chu to Tour Leading Solar Firm in Boston Area December 1, 2010 - 12:00am Addthis Washington, DC - On Thursday, December 2, 2010, US Energy Secretary Steven Chu will be joined by Dr. Arun Majumdar, ARPA-E Director, to tour 1366 Technologies, a leading solar technology firm that is developing more cost efficient solar panels. 1366 received a $4 million Recovery Act grant through the Department of Energy's Advance Research Project Agency-Energy (ARPA-E) program in October 2009. 1366 is a shining star, real example showcasing Boston as a leader in the clean energy sector. Since receiving the Recovery Act funds 1366 Technologies has made rapid technical progress towards its goal of halving the cost of solar energy. It has also hired 15

138

The NGO's Dilemma: How to Influence Firms to Replace a Potentially Hazardous Substance  

E-Print Network [OSTI]

We study a nongovernmental organization's (NGO's) decisions when it attempts to remove a potentially hazardous substance from commercial use in a market with competing firms. Specifically, we determine under what market ...

Kraft, Tim

139

How Credit Market Conditions Impact the Effect of Voluntary Disclosure on Firms' Cost of Debt Capital  

E-Print Network [OSTI]

(abundant) suggesting that they value voluntary disclosure from borrowers differentially across credit market regimes. I draw upon the economic and finance literature on credit rationing to test whether the effects of voluntary disclosure on firms' cost...

Scott, Bret

2012-10-19T23:59:59.000Z

140

New Jersey firm creates jobs and vital components for world-leading...  

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

Jersey firm creates jobs and vital components for world-leading experiment By John Greenwald July 10, 2012 Tweet Widget Google Plus One Share on Facebook This superconducting wire...

Note: This page contains sample records for the topic "firm level heterogeneity" 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

How Sales Taxes Affect Customer and Firm Behavior: The Role of Search on the Internet  

E-Print Network [OSTI]

When a multichannel retailer opens its first retail store in a state, the firm is obligated to collect sales taxes on all Internet and catalog orders shipped to that state. This article assesses how opening a store affects ...

Anderson, Eric T.

142

R&D investment of start-up firms: does founders’ human capital matter?  

Science Journals Connector (OSTI)

This article examines whether founders’ human capital affects not only actual investment but also required investment in research and development (R&D), using the original data of Japanese start-up firms. The est...

Yuji Honjo; Masatoshi Kato; Hiroyuki Okamuro

2014-02-01T23:59:59.000Z

143

Cross-border business challenges: an ethnographic study of small U.S. and Mexican firms  

E-Print Network [OSTI]

This study explores the cultural differences in Mexican and U.S. business behaviors and the challenges to successful U.S.-Mexico trade relations among small firms. The differences and challenges identified through interviews and participant...

Snider, Rhonda

2012-06-07T23:59:59.000Z

144

Mediating regional development : how metalworking firms forged lasting linkages with steel in Ciudad, Guayana, Venezuela  

E-Print Network [OSTI]

Ever since the late 1950s, planners have lured large firms to lagging regions with the expectation that they will trigger local industrial activity. According to the literatures on unbalanced growth, growth poles, foreign ...

Döhnert, Sylvia, 1970-

2003-01-01T23:59:59.000Z

145

An intervention analysis for the relationship between capital expenditure decisions and the market value of firms  

Science Journals Connector (OSTI)

This article is meant to explore the relationship between corporate capital expenditure decisions and the market value of firms ... . The article shows that deep cuts in capital expenditures may, for sink-hole ty...

Yang-Tzong Tsay; Ken Hung

1994-06-01T23:59:59.000Z

146

Regional infrastructure and firm investment: theory and empirical evidence for Italy  

Science Journals Connector (OSTI)

The authors model the channels through which public expenditure on infrastructure influences firm value and shapes...via both adjustment costs and marginal profitability of capital. The authors test these hypothe...

Francesco Aiello; Alfonsina Iona; Leone Leonida

2012-06-01T23:59:59.000Z

147

How important are transaction costs for service firm integration decisions? A meta-analysis  

Science Journals Connector (OSTI)

As the global economy becomes more service-based, the need to understand how service firms govern different activities has become increasingly important. Transaction Cost Theory (TCT) has long been a key perspective on the integration of different activities. TCT asserts that the costs surrounding exchanges, called transaction costs, direct managers' decisions about whether or not to integrate. We take a step towards understanding whether transaction costs play a role in service firms' integration decisions by aggregating results from 28 studies involving 31 samples via meta-analysis. The results reveal that TCT offers limited explanatory power for service firms' integration decisions, and that TCT requires augmentation with other theories in order to explain how service firms govern such activities.

T. Russell Crook; Paul Louis Drnevich; Garry L. Adams; James G. Combs

2009-01-01T23:59:59.000Z

148

ORGANIZATIONAL DESIGN, ORGANIZATIONAL LEARNING, AND THE MARKET VALUE OF THE FIRM  

E-Print Network [OSTI]

We compare market returns associated with firms' creation of new units focused on e-business. Two aspects of organization design - governance and leadership - are considered with regard to exploitation - and exploration-oriented ...

Carroll, Timothy N.

2006-01-13T23:59:59.000Z

149

How to transition Chinese firms into world-class corporations : organizational and cultural innovations are key  

E-Print Network [OSTI]

Entering the 21st Century, after almost 30 years development of the Chinese economy, several famous Chinese firms have grown to a significant scale and achieved the rudiments of world-class corporations. Following Japanese ...

Zhao, Zhongyao (Zhongyao Charls)

2007-01-01T23:59:59.000Z

150

Knowledge sharing within strategic alliance networks and its influence on firm performance: the liner shipping industry  

Science Journals Connector (OSTI)

With increasing ubiquity of globalisation and the knowledge-based economy, the significance of knowledge as a critical firm resource is widely acknowledged, whilst strategic alliances are increasingly employed as instruments for knowledge sharing. The progressive formation of prominent alliance networks has also spurred much research on the effects of alliance networks on firm performance. With scant maritime-related research on such areas and strategic alliances being rampant in liner shipping, it is important to understand the knowledge dynamics within liner shipping alliance networks and examine their impact on firm performance. An exploratory approach, via face-to-face interviews with liner shipping executives, was adopted to obtain detailed insights and understanding for all research objectives. The findings of this study revealed existing mechanisms of knowledge sharing within liner shipping alliance networks, illustrate how information sharing amongst partners enhances firm performance, and demonstrate the positive yet limited moderating effects of geographical proximity on the former relationship.

Beverly S.Y. Tan; Vinh V. Thai

2014-01-01T23:59:59.000Z

151

Structural and Energetic Heterogeneity in Protein Folding  

E-Print Network [OSTI]

A general theoretical framework is developed using free energy functional methods to understand the effects of heterogeneity in the folding of a well-designed protein. Native energetic heterogeneity arising from non-uniformity in native stability, as well as entropic heterogeneity intrinsic to the topology of the native structure are both investigated as to their impact on the folding free energy landscape and resulting folding mechanism. Given a minimally frustrated protein, both structural and energetic heterogeneity lower the thermodynamic barrier to folding, and designing in sufficient heterogeneity can eliminate the barrier at the folding transition temperature. Sequences with different distributions of stability throughout the protein and correspondingly different folding mechanisms may still be good folders to the same structure. This theoretical framework allows for a systematic study of the coupled effects of energetics and topology in protein folding, and provides interpretations and predictions for future experiments which may investigate these effects.

Steven S. Plotkin; Jose N. Onuchic

2000-09-27T23:59:59.000Z

152

Technological innovations in Indian Small and Medium Enterprises (SMEs) sector: does firm size matter?  

Science Journals Connector (OSTI)

SMEs, irrespective of size, are primarily engaged in 'incremental technological innovations' with self efforts. But average innovation expenditure and innovation personnel increased with firm size. There is a positive relationship between innovation expenditure and value of output, and negative relationship between innovation intensity and firm size. Innovation expenditure with labour and capital has a significant influence on the value of output in each of the sub sectors.

M.H. Bala Subrahmanya

2006-01-01T23:59:59.000Z

153

Alliance stratgique entre PME et Grande Firme Internationale : Quel rle pour le middle manager ?  

E-Print Network [OSTI]

1 Alliance stratégique entre PME et Grande Firme Internationale : Quel rôle pour le middle manager Globales aux Born Global Firms, PAU : France (2010)" #12;2 Alliance stratégique entre Petite et Moyenne coûts et des niveaux d'engagements différents. Ce travail propose de se focaliser sur l'alliance

Boyer, Edmond

154

Can investors rely on the quality of earnings figures published by listed and non-listed Russian firms?  

Science Journals Connector (OSTI)

This paper investigates earnings quality of both listed and non-listed Russian firms and explores whether foreign ownership affects the quality of earnings published by non-listed Russian firms. Russia, the largest European transitional economy, is an increasingly attractive market for foreign investors. Our empirical results show that Russian firms listed on a stock exchange report earnings of relatively good quality. We do not find support for the hypothesis that non-listed Russian firms co-owned by foreign investors report earnings of better quality than do exclusively Russian-owned non-listed firms. However, we find that non-listed Russian firms with foreign ownership report earnings with more timely recognition of economic gains than exclusively Russian-owned non-listed firms do. Our results are robust for different specifications of the earnings quality model.

Alexandra Bagaeva; Juha-Pekka Kallunki; Hanna Silvola

2008-01-01T23:59:59.000Z

155

Adaptive heterogeneous multi-robot teams  

SciTech Connect (OSTI)

This research addresses the problem of achieving fault tolerant cooperation within small- to medium-sized teams of heterogeneous mobile robots. The author describes a novel behavior-based, fully distributed architecture, called ALLIANCE, that utilizes adaptive action selection to achieve fault tolerant cooperative control in robot missions involving loosely coupled, largely independent tasks. The robots in this architecture possess a variety of high-level functions that they can perform during a mission, and must at all times select an appropriate action based on the requirements of the mission, the activities of other robots, the current environmental conditions, and their own internal states. Since such cooperative teams often work in dynamic and unpredictable environments, the software architecture allows the team members to respond robustly and reliably to unexpected environmental changes and modifications in the robot team that may occur due to mechanical failure, the learning of new skills, or the addition or removal of robots from the team by human intervention. After presenting ALLIANCE, the author describes in detail the experimental results of an implementation of this architecture on a team of physical mobile robots performing a cooperative box pushing demonstration. These experiments illustrate the ability of ALLIANCE to achieve adaptive, fault-tolerant cooperative control amidst dynamic changes in the capabilities of the robot team.

Parker, L.E.

1998-11-01T23:59:59.000Z

156

Heterogeneous ice nucleation and water uptake by field-collected...  

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

properties through heterogeneous nucleation is not well understood. Heterogeneous ice nucleation and water uptake by ambient particles collected from urban environments in...

157

Heterogeneous effects in fast breeder reactors  

E-Print Network [OSTI]

Heterogeneous effects in fast breeder reactors are examined through development of simple but accurate models for the calculation of a posteriori corrections to a volume-averaged homogeneous representation. Three distinct ...

Gregory, Michael Vladimir

1973-01-01T23:59:59.000Z

158

Characterizing aquifer heterogeneity using hydraulic tomography  

E-Print Network [OSTI]

well-studied site in northeastern Kansas. A computer program has been developed to analyze the data by extending the 3D homogeneous spherical radial equation to the heterogeneous case. The analysis program is capable of efficiently resolving zones...

Wachter, Brian James

2008-07-29T23:59:59.000Z

159

Survey of commercial firms with mixed-waste treatability study capability  

SciTech Connect (OSTI)

According to the data developed for the Proposed Site Treatment Plans, the US Department of Energy (DOE) mixed low-level and mixed transuranic waste inventory was estimated at 230,000 m{sup 3} and embodied in approximately 2,000 waste streams. Many of these streams are unique and may require new technologies to facilitate compliance with Resource Conservation and Recovery Act disposal requirements. Because most waste streams are unique, a demonstration of the selected technologies is justified. Evaluation of commercially available or innovative technologies in a treatability study is a cost-effective method of providing a demonstration of the technology and supporting decisions on technology selection. This paper summarizes a document being prepared by the Mixed Waste Focus Area of the DOE Office of Science and Technology (EM-50). The document will provide DOE waste managers with a list of commercial firms (and universities) that have mixed-waste treatability study capabilities and with the specifics regarding the technologies available at those facilities. In addition, the document will provide a short summary of key points of the relevant regulations affecting treatability studies and will compile recommendations for successfully conducting an off-site treatability study. Interim results of the supplier survey are tabulated in this paper. The tabulation demonstrates that treatment technologies in 17 of the US Environmental Protection Agency`s technology categories are available at commercial facilities. These technologies include straightforward application of standard technologies, such as pyrolysis, as well as proprietary technologies developed specifically for mixed waste. The paper also discusses the key points of the management of commercial mixed-waste treatability studies.

McFee, J.; McNeel, K.; Eaton, D. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States); Kimmel, R. [Dept. of Energy, Idaho Falls, ID (United States). Idaho Operations Office

1996-04-01T23:59:59.000Z

160

Do I like my ICON? Determining preferences for firms' mode of strategic focus  

Science Journals Connector (OSTI)

Whether they intend to or not, firms adopt a strategic mode of focus, a way of directing efforts towards markets, products, both or neither. However, in a fast changing environment, such as South Africa, little information exists on whether managers within these organisations feel that the archetype they have adopted will be appropriate for survival in the near mid-term future. This paper reports on the results of a study that identified the modes of focus of South African firms as perceived by senior marketing managers. It then matches these to the strategic mode that the managers see as most likely to guarantee the future success of their firms. Limitations of the study are identified, implications for management highlighted and avenues for future research discussed.

Leyland F. Pitt; Pierre Berthon; Melani Prinsloo; Deon Nel

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

International technology transfer and its impact on innovation enhancement for firms based in Sri Lanka  

Science Journals Connector (OSTI)

This paper presents research findings from industrial firms based in Sri Lanka who need to acquire new technologies from the external environment in order to compete and upgrade their innovation capabilities. We analyse some of the key challenges faced by the recipients of knowledge in international technology transfer projects from the perspective of technology receiver firms based in a developing country. Through this technology transfer process the receiver firms attempt to utilise knowledge, from the technology senders based in advanced countries, in order to help them upgrade their innovation capabilities. This upgrading process involves overcoming some challenges related to training provision, human resources, language barriers, complexity of transfer process, and recipient's lack of absorptive capacity. We present a number of important managerial implications, especially relevant for technology receivers in developing countries.

Khaleel Malik; Vathsala Wickramasinghe

2013-01-01T23:59:59.000Z

162

A quantitative measure for protein conformational heterogeneity  

Science Journals Connector (OSTI)

Conformational heterogeneity is a defining characteristic of proteins. Intrinsically disordered proteins (IDPs) and denatured state ensembles are extreme manifestations of this heterogeneity. Inferences regarding globule versus coil formation can be drawn from analysis of polymeric properties such as average size shape and density fluctuations. Here we introduce a new parameter to quantify the degree of conformational heterogeneity within an ensemble to complement polymeric descriptors. The design of this parameter is guided by the need to distinguish between systems that couple their unfolding-folding transitions with coil-to-globule transitions and those systems that undergo coil-to-globule transitions with no evidence of acquiring a homogeneous ensemble of conformations upon collapse. The approach is as follows: Each conformation in an ensemble is converted into a conformational vector where the elements are inter-residue distances. Similarity between pairs of conformations is quantified using the projection between the corresponding conformational vectors. An ensemble of conformations yields a distribution of pairwise projections which is converted into a distribution of pairwise conformational dissimilarities. The first moment of this dissimilarity distribution is normalized against the first moment of the distribution obtained by comparing conformations from the ensemble of interest to conformations drawn from a Flory random coil model. The latter sets an upper bound on conformational heterogeneity thus ensuring that the proposed measure for intra-ensemble heterogeneity is properly calibrated and can be used to compare ensembles for different sequences and across different temperatures. The new measure of conformational heterogeneity will be useful in quantitative studies of coupled folding and binding of IDPs and in de novo sequence design efforts that are geared toward controlling the degree of heterogeneity in unbound forms of IDPs.

Rohit V. Pappu

2013-01-01T23:59:59.000Z

163

Managerial threats and prospects in Russian firms: the case of St. Petersburg 1999â??2005  

Science Journals Connector (OSTI)

If management in firms of the concrete region focuses on innovation development, the economy of this region will have chances to become the innovation economy. What are the chances in this respect of St. Petersburg in the North-West Russia? In order to answer this question we have investigated managerial practices in local enterprises during two time periods 1999â??2000 (N = 982) and 2004â??2005 (N = 633). Our research has revealed: strategies employed by industrial firms is already under an insuperable influence of the modern global information society. The innovation economy has already started to form in the region.

Raimo Blom; Harri Melin; Alfred Sarno; Irina Sarno

2008-01-01T23:59:59.000Z

164

Single molecule tracking of heterogeneous diffusion  

Science Journals Connector (OSTI)

The mean square displacement of heterogeneous diffusion obeys the Einstein relation, thereby showing no sign of heterogeneities in the ensemble measurement of the diffusion constant. The signature of spatial heterogeneities appears in the time evolution of the non-Gaussian distribution and in the cross correlation between the square displacements at different times, both available from single molecule diffusional trajectories. As a quantitative measure, the non-Gaussian indicator g(t) decays asymptotically to zero according to 1/t for finite time correlation, but saturates at a plateau value for power-law correlation. In addition, the joint moment correlation function f(t,?) provides a direct probe of the memory effect of the fluctuating rate constant. A two-state diffusion model and a stochastic Gaussian model are constructed to evaluate these quantities and are shown to yield the same result within the second cumulant expansion.

Jianshu Cao

2001-03-16T23:59:59.000Z

165

Determination of Ranged Sets of Design Specifications by Incorporating Design Space Heterogeneity  

E-Print Network [OSTI]

Huibin Liu BD Medical Systems Sandy, UT 84070 Wei Chen1 Integrated Design Automation Laboratory (IDEAL design attributes. These high-level specifications serve as a starting point and are cascaded to guide1 Determination of Ranged Sets of Design Specifications by Incorporating Design Space Heterogeneity

Chen, Wei

166

Dynamic Efficiency and the Regulated Firm: Evidence from Interfirm Trade in Electricity Markets  

E-Print Network [OSTI]

PWP-033 Dynamic Efficiency and the Regulated Firm: Evidence from Interfirm Trade in Electricity on Workable Energy Regulation (POWER). POWER is a program of the University of California Energy Institute of California Energy Institute 2539 Channing Way Berkeley, California 94720-5180 www.ucei.berkeley.edu/ucei #12

California at Berkeley. University of

167

Are firms with different CSR profiles equally innovative? An empirical analysis with survey data  

E-Print Network [OSTI]

the relationship between corporate social responsibility (CSR) and innovation from a firm strategic perspective. KEYWORDS: Corporate Social Responsibility, Innovation, Product, Process, Strategic Profiles halshs-00737698 innovation and competitiveness on the one hand and social inclusion on the other) and, with a few exceptions

Boyer, Edmond

168

Experimental Evaluation of Inventory-Based Discrete-Updating Market Maker for Intra-Firm Prediction  

E-Print Network [OSTI]

an inventory-based updating logic according to the transactions in the market. Laboratory experimentsExperimental Evaluation of Inventory-Based Discrete- Updating Market Maker for Intra-Firm Prediction Market System Using VIPS Hajime Mizuyama1 , Morio Ueda, Katsunobu Asada and Yu Tagaya 1 Department

Boyer, Edmond

169

Do Firms Interact Strategically? A Structural Model of the Multi-Stage Investment Timing Game  

E-Print Network [OSTI]

their exploration and development investment timing decisions, positive information externalities and negative's production decisions and profits depend on the decisions of firms owning neighboring tracts of land etrics, in industrial organization, in m icroeconom ic theory, in energy econom ics, and in environm

Lin, C.-Y. Cynthia

170

Acquisition and management of technology-based firms in a trading and investment company  

E-Print Network [OSTI]

Among several key factors affecting new technology innovation, two important ones that are sometimes disturbed by M&A are long-term p-ans and the commitment of the acquired firm's management team. M&A led by technology ...

Tanaka, Jin, M.B.A. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

171

Bank-firm credit network in Japan. An analysis of a bipartite network  

E-Print Network [OSTI]

We present an analysis of the credit market of Japan. The analysis is performed by investigating the bipartite network of banks and firms which is obtained by setting a link between a bank and a firm when a credit relationship is present in a given time window. In our investigation we focus on a community detection algorithm which is identifying communities composed by both banks and firms. We show that the clusters obtained by directly working on the bipartite network carry information about the networked nature of the Japanese credit market. Our analysis is performed for each calendar year during the time period from 1980 to 2011. Specifically, we obtain communities of banks and networks for each of the 32 investigated years, and we introduce a method to track the time evolution of these communities on a statistical basis. We then characterize communities by detecting the simultaneous over-expression of attributes of firms and banks. Specifically, we consider as attributes the economic sector and the geogra...

Marotta, Luca; Fujiwara, Yoshi; Iyetomi, Hiroshi; Aoyama, Hideaki; Gallegati, Mauro; Mantegna, Rosario N

2014-01-01T23:59:59.000Z

172

Effective permeabilities for model heterogeneous porous media  

SciTech Connect (OSTI)

This paper presents a technique to evaluate effective absolute permeabilities for heterogeneous porous media. The technique is based on a perturbation analysis of the equations of motion of a slightly compressible fluid in a homogeneous porous medium at low Reynolds numbers. The effective permeabilities can be calculated once the local geometry of the heterogeneous medium is specified. The technique is used to evaluate two- and three-dimensional effective vertical permeabilities in porous media with shale intercalations, including the case in which the porous matrix is anisotropic.

Otevo, C.; Rusinek, I. (Tecnologiade Yacimientos, INTEVEPS.A., P.O. Box 76343, Caracas 1070-A (VE)); Saez, A.E. (Departamento de Termodinamicay Fenomenosde Transferencia, Universidad Simon Bolivar, P.O. Box 89000, Caracas 1086-A (VE))

1990-01-01T23:59:59.000Z

173

Relationship between industrial firms, high-carbon and low-carbon energy: An agent-based simulation approach  

Science Journals Connector (OSTI)

The aim of the present research is to describe an agent-based computational model that simulates the relationship between industrial firms and high-carbon and low-carbon energy. A set of behavioral rules for each agent involved was formalized in the ... Keywords: Agent-based simulation, High-carbon energy, Industrial firms, Low-carbon energy

Yong Liu

2013-03-01T23:59:59.000Z

174

The effect of a corporate name change related to a change in corporate image upon a firm's stock price  

E-Print Network [OSTI]

change to the corporate name during a CNC related to a change in corporate image? Third, what is the effect of a non-brand name altering CNC versus a brand name altering CNC on a firm’s stock price? This dissertation makes its primary contribution...

DeFanti, Mark P.

2009-06-02T23:59:59.000Z

175

Evaluating the exploration efficiency of oil and gas firms using SFAS 69 supplemental disclosures  

Science Journals Connector (OSTI)

Investors and other users of financial statements often analyze financial statement information to evaluate the exploration efficiency of oil and gas firms. One approach commonly employed is to calculate an average per-unit cost of finding and developing oil and gas reserves using data disclosed by oil and gas firms in the footnotes to their financial statements. These average finding costs ratios, while widely used, are by no means universally accepted as providing meaningful insight into the exploration efficiency and potential profitability of an oil and gas firm. In fact, a number of financial analysts who specialize in oil and gas firms have argued that these finding costs ratios in fact provide no useful insights into how well a company has done. The purpose of our paper is to evaluate the usefulness of these finding costs measures as indicators of exploration efficiency and potential profitability. Our approach involves comparing the statistical association between various finding costs measures to a benchmark measure of exploration efficiency derived from a Cobb-Douglas regression. We also compare these finding costs measures to two commonly used financial statement measures of profitability—return on sales and return on assets—to evaluate whether finding costs are useful as indicators of profitability. Our results indicate that finding costs ratios calculated from readily available financial statement data provide useful insight into both exploration efficiency and the potential profitability of an oil and gas firm. Our findings are important because they provide empirical evidence useful in resolving a debate within the financial analyst community concerning the utility of these finding costs ratios.

Charles E. Boynton IV; Jeffery P. Boone; Teddy L. Coe

1999-01-01T23:59:59.000Z

176

Modeling the Energy Efficiency of Heterogeneous Clusters  

E-Print Network [OSTI]

on heterogeneous clusters ­ Unexplored from energy-time performance perspective 10-Sep-14 ICPP 2014 7 #12;Objectiveth September 2014 43rd International Conference on Parallel Processing, Minneapolis, MN, USA #12;Outline · Motivation · Objective · Methodology · Analysis · Conclusions 10-Sep-14 2ICPP 2014 #12;Energy

Teo, Yong-Meng

177

Transport Control Protocol (TCP) In Heterogeneous Networks  

E-Print Network [OSTI]

Sprint Transport Control Protocol (TCP) In Heterogeneous Networks Objectives · Principles of TCP functional modules: slow start, congestion avoidance, fast transmission and fast recovery. ­ Maintain · Packet dropping is the only indication signal for network congestion (Maybe?) · Different transmission

Shihada, Basem

178

Substitution patterns across alternatives as a source of preference heterogeneity in recreation demand models  

Science Journals Connector (OSTI)

Abstract Recent stated choice studies have shown that, in a context of inter-alternative correlation, individuals can assess alternatives differently. This asymmetry in perception between alternatives with different levels of substitutability becomes one additional, but usually overlooked, source of observed preference heterogeneity. In the context of beach recreation in Mallorca, Spain, this paper extends the investigation on this source of heterogeneity to a revealed preference setting. While the substitution pattern existent across sites is accounted for by means of a nested logit model, nest-specific coefficients are estimated to evaluate the utilities associated with different groups of sites. The results provide empirical evidence to suggest that substitution patterns across alternatives are a statistically significant source of influence on preference heterogeneity leading to different marginal sensitivities for a number of site attributes.

Angel Bujosa Bestard

2014-01-01T23:59:59.000Z

179

Characterization of oil and gas reservoir heterogeneity  

SciTech Connect (OSTI)

Research described In this report addresses the internal architecture of two specific reservoir types: restricted-platform carbonates and fluvial-deltaic sandstones. Together, these two reservoir types contain more than two-thirds of the unrecovered mobile oil remaining ill Texas. The approach followed in this study was to develop a strong understanding of the styles of heterogeneity of these reservoir types based on a detailed outcrop description and a translation of these findings into optimized recovery strategies in select subsurface analogs. Research targeted Grayburg Formation restricted-platform carbonate outcrops along the Algerita Escarpment and In Stone Canyon In southeastern New Mexico and Ferron deltaic sandstones in central Utah as analogs for the North Foster (Grayburg) and Lake Creek (Wilcox) units, respectively. In both settings, sequence-stratigraphic style profoundly influenced between-well architectural fabric and permeability structure. It is concluded that reservoirs of different depositional origins can therefore be categorized Into a heterogeneity matrix'' based on varying intensity of vertical and lateral heterogeneity. The utility of the matrix is that it allows prediction of the nature and location of remaining mobile oil. Highly stratified reservoirs such as the Grayburg, for example, will contain a large proportion of vertically bypassed oil; thus, an appropriate recovery strategy will be waterflood optimization and profile modification. Laterally heterogeneous reservoirs such as deltaic distributary systems would benefit from targeted infill drilling (possibly with horizontal wells) and improved areal sweep efficiency. Potential for advanced recovery of remaining mobile oil through heterogeneity-based advanced secondary recovery strategies In Texas is projected to be an Incremental 16 Bbbl. In the Lower 48 States this target may be as much as 45 Bbbl at low to moderate oil prices over the near- to mid-term.

Tyler, N.; Barton, M.D.; Bebout, D.G.; Fisher, R.S.; Grigsby, J.D.; Guevara, E.; Holtz, M.; Kerans, C.; Nance, H.S.; Levey, R.A.

1992-10-01T23:59:59.000Z

180

Modeling Heterogeneity in Indirect Effects: Multilevel Structural Equation Modeling Strategies  

E-Print Network [OSTI]

The heterogeneity implicit in much of social science research can be accommodated by using complex modeling procedures such as SEM or MLM. Ignoring heterogeneity, particularly with regard to nested data structures, can have serious consequences...

Fall, Emily C.

2011-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Do Race, Age, and Gender Differences Affect Manager-Employee Relations? An Analysis of Quits, Dismissals, and Promotions at a Large Retail Firm  

E-Print Network [OSTI]

Evidence from a Large Retail Employer. ” Unpublished Paper.and Promotions at a Large Retail Firm Laura Giuliano*Using data from a large U.S. retail firm, we examine how

Giuliano, Laura; Levine, David I.; Leonard, Jonathan

2006-01-01T23:59:59.000Z

182

Do Race, Gender, and Age Differences Affect Manager-Employee Relations? An Analysis of Quits, Dismissals, and Promotions at a Large Retail Firm  

E-Print Network [OSTI]

and Promotions at a Large Retail Firm Laura GiulianoUsing data from a large U.S. retail employer, we examine howrecords from a very large U.S. retail firm to examine how

GIULIANO, LAURA M; Leonard, Jonathan; Levine, David I. I.

2005-01-01T23:59:59.000Z

183

Ion beam analyses of radionuclide migration in heterogeneous rocks  

Science Journals Connector (OSTI)

The migration of radionuclides (RN) in the environment is a topic of general interest for its implications on public health and it is an issue for the long-term safety studies of deep geological repositories (DGR) for high-level radioactive waste. The role played by colloids on RN migration is also of great concern. Diffusion and sorption are fundamental mechanisms controlling RN migration in rocks and many experimental approaches are applied to determine transport parameters for low sorbing RN in homogeneous rocks. However it is difficult to obtain relevant data for high sorbing RN or colloids for which diffusion lengths are extremely short or within heterogeneous rocks where transport might be different in different minerals. The ion beam techniques Rutherford Backscattering Spectrometry (RBS) and micro-Particle Induced X-Ray Emission (?PIXE) rarely applied in the field were selected for their micro-analytical potential to study RN diffusion and surface retention within heterogeneous rocks. Main achievements obtained during last 12 years are highlighted.

Valentino Rigato

2013-01-01T23:59:59.000Z

184

WSN-inspired Sleep Protocols for Heterogeneous LTE Networks  

E-Print Network [OSTI]

architecture becomes heterogenous, in particular 4G networks where LTE micro eNodeBs are deployed to strengthen algorithm to dynamically switch off and on the micro eNodeBs of an LTE heterogeneous network followingWSN-inspired Sleep Protocols for Heterogeneous LTE Networks Iulia Tunaru CEA CEA-Leti, Minatec

Paris-Sud XI, Université de

185

New Jersey firm creates jobs and vital components for world-leading  

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

Jersey firm creates jobs and vital components for world-leading Jersey firm creates jobs and vital components for world-leading experiment By John Greenwald July 10, 2012 Tweet Widget Facebook Like Google Plus One This superconducting wire will become thin as a needle when Oxford Superconducting Technology finishes manufacturing it. (Photo by Elle Starkman, PPPL Office Of Communications) This superconducting wire will become thin as a needle when Oxford Superconducting Technology finishes manufacturing it. Gallery: Oxford Superconducting begins with a foot-long copper and niobium billet that weighs several hundred pounds. (Photo by Elle Starkman, PPPL Office Of Communications) Oxford Superconducting begins with a foot-long copper and niobium billet that weighs several hundred pounds. The billets are drawn down until more than a dozen can be stacked inside a hollow copper tube like those that General Manager Jeffrey Parrell shows here. He holds a billet-filled tube that has been drawn down some more.

186

NREL: News - NREL Report Firms Up Land-Use Requirements of Solar  

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

NREL Report Firms Up Land-Use Requirements of Solar NREL Report Firms Up Land-Use Requirements of Solar Study shows solar for 1,000 homes would require 32 acres July 30, 2013 The Energy Department's National Renewable Energy Laboratory (NREL) has published a report on the land use requirements of solar power plants based on actual land-use practices from existing solar facilities. "Having real data from a majority of the solar plants in the United States will help people make proper comparisons and informed decisions," lead author Sean Ong said. The report, "Land-use Requirements for Solar Power Plants in the United States," was written with NREL colleagues Clinton Campbell, Robert Margolis, Paul Denholm and Garvin Heath. Ong gathered data from 72% of the solar power plants installed or under

187

Research on marketing in emerging firms: key issues and open questions  

Science Journals Connector (OSTI)

In many industries, emerging firms derive their initial strength from R&D activities. Though technological capabilities are important for building technologically sound products, they are not sufficient for turning an emerging firm into a viable economic actor, as numerous examples illustrate. Based on a discussion of the specific challenges of marketing in new ventures and a brief overview on past and current research studies, this article focuses on reviewing research findings on four key topics: establishing a market orientation, building credibility and trust with stakeholders, establishing marketing alliances and low-cost marketing. Though previous research has produced important insights into each of these topics, there are still plenty of issues that offer promising opportunities for future studies.

Marc Gruber

2003-01-01T23:59:59.000Z

188

The use of third party logistics services by Swedish manufacturing firms: current situation and future prospects  

Science Journals Connector (OSTI)

The aim of this research is to examine the usage of TPL services by manufacturing firms in Sweden. The paper focuses on several key issues relating to the extent of usage of TPL services; decision-making process; the impact of using TPL services on user firms; specific TPL services that were used and future plans to use TPL services. More than half of the respondents were using TPL services and most of the users were satisfied with their service providers. While cost consideration was still critical, customer satisfaction reliability and service quality were becoming more crucial to decision-making and evaluation. This research provides results and analysis to practitioners by depicting the impacts of using TPL services. It also gives information to TPL service providers so they can better understand the current situation and future challenges.

Lianguang Cui; Lisa Sjoholm; Ying Wang

2009-01-01T23:59:59.000Z

189

Successful Pursuit of Small Electrical and Controls Projects by a Small Civil Engineering Firm  

E-Print Network [OSTI]

. The local Utilities may not typically have projects of interest for a civil engineering firm but will occasionally have related projects published for bid. Coal fired power plants require a large amount of water supply for cooling and creating steam... to power electrical generating turbines (7). A higher degree of water quality is continually sought to increase generation efficiency and to prolong equipment operating life. Also, the used water needs to be treated before 8 of 40 putting back...

Gates, Craig

2008-07-25T23:59:59.000Z

190

The Effects of Firm Size, Corporate Governance Quality, and Bad News on Disclosure Compliance  

E-Print Network [OSTI]

://link.springer.com/article/10.1007%2Fs11142-011-9153-8>. Open Access Version: http://kuscholarworks.ku.edu/dspace/. Electronic copy available at: http://ssrn.com/abstract=955922 The effects of firm size, corporate governance quality, and bad news on disclosure compliance... Governance Quality, and Bad News on Disclosure Compliance. Review of Accounting Studies. Publisher's Official Version: Fs11142-011-9153-8>. Open Access Version: http://kuscholarworks.ku.edu/dspace/. Electronic...

Ettredge, Michael L.; Johnstone, Karla; Stone, Mary S.; Wang, Qian

2011-01-01T23:59:59.000Z

191

Microgrids and Heterogeneous Power Quality and Reliability  

SciTech Connect (OSTI)

This paper describes two stylized alternative visions of how the power system might evolve to meet future requirements for the high quality electricity service that modern digital economies demand, a supergrids paradigm and a dispersed paradigm. Some of the economics of the dispersed vision are explored, and perspectives are presented on both the choice of homogeneous universal power quality upstream in the electricity supply chain and on the extremely heterogeneous requirements of end-use loads. It is argued that meeting the demanding requirements of sensitive loads by local provision of high quality power may be more cost effective than increasing the quality of universal homogeneous supply upstream in the legacy grid. Finally, the potential role of microgrids in delivering heterogeneous power quality is demonstrated by reference to two ongoing microgrid tests in the U.S. and Japan.

LaCommare, Kristina; Marnay, Chris

2007-10-01T23:59:59.000Z

192

Regional knowledge dynamics in the biotechnology industry: a conceptual framework for micro-level analysis  

Science Journals Connector (OSTI)

In this paper, we propose a firm-based micro-level framework for the analysis of regional knowledge dynamics. This approach contrasts with most of the established literature on regional clusters, learning regions, industrial districts or Regional Innovation Systems (RISs), which focus mainly on the meso-level of industrial organisation. Contrary to those concepts we are using a biographical method that maps the firm's innovation processes and practices and further on evaluates how those processes are interrelated with intra-organisational change and knowledge flows across different territorial levels.

Robert Kaiser; Michael Liecke

2009-01-01T23:59:59.000Z

193

The pros and cons of corruption of firm performance : a micro-level study of businesses in Indonesia  

E-Print Network [OSTI]

Over the past 10 years, different international organization and NGO's have given birth to a whole host of different anti corruption programs in response to the recent "endemic" of corruption which is seen to plague ...

Murdaya, Karuna

2005-01-01T23:59:59.000Z

194

A power model of management team restructuring and executive exit in IPO-stage firms: antecedents and performance effects  

E-Print Network [OSTI]

Despite an abundance of executive turnover research in the context of large public firms, little has focused on top executive change in entrepreneurial settings. This study attempts to develop a foundation of theory and evidence on management team...

Li, Jun

2005-11-01T23:59:59.000Z

195

A study of the correlation between pre-IPO venture funds and founder characteristics with high-tech firm growth  

E-Print Network [OSTI]

High-tech firms are among the fastest growing in the United States. The four industries with the most rapid growth -internet, software, semiconductors, and technology hardware - have almost doubled their share of industry ...

Zaheer, Safwan

2008-01-01T23:59:59.000Z

196

The Effect of SFAS No. 131 on the Cross-Segment Variability of Profits Reported by Multiple Segment Firms  

E-Print Network [OSTI]

Our study assesses whether SFAS No. 131 improved disclosure about the diversity of multiple segment firms’ operations. We find a post-SFAS No. 131 increase in cross-segment variability of segment profits, an increase in ...

Ettredge, Michael L.; Kwon, Soo Young; Smith, David B.; Stone, Mary S.

2006-01-01T23:59:59.000Z

197

Truth-telling by Third-party Auditors and the Response of Polluting Firms: Experimental Evidence from India  

E-Print Network [OSTI]

In many regulated markets, private, third-party auditors are chosen and paid by the firms that they audit, potentially creating a conflict of interest. This paper reports on a two-year field experiment in the Indian state ...

Duflo, Esther

2013-07-17T23:59:59.000Z

198

Why did they comply while others did not? : environmental compliance of small firms and implications for regulation  

E-Print Network [OSTI]

This doctoral dissertation aims to offer new insights into the environmental compliance behavior of small firms (SFs). Specifically, the dissertation examines the impacts of two categories of factors. The first category ...

Lee, Eungkyoon

2005-01-01T23:59:59.000Z

199

Sell-in versus Sell-through Revenue Recognition: An Examination of Firm Characteristics and Financial Information Quality  

E-Print Network [OSTI]

This study examines revenue recognition methods used by high technology firms for sales to distributors. Revenue is either recognized when products are delivered to distributors (sell-in) or when distributors resell products to end-users (sell...

Rasmussen, Stephanie Jean Binger

2010-10-12T23:59:59.000Z

200

Towards a new form of governance for inter-firm cooperation? Lessons from the Renault-Nissan Alliance  

Science Journals Connector (OSTI)

The Renault-Nissan Alliance is representative of forthcoming challenges of inter-firm cooperation. Based on an in-depth case study on this case, the paper expands the evolutionary perspective to examine the processes through which the firms jointly investigate their potential partners to build business opportunities. This exploratory process can either come to a standstill or end up in a merger or in other form of alliance. In order to learn potential common projects and the possible form of governance, firms need to manage simultaneously the coordination and the cohesion mechanisms. The paper also discusses the relevance of a special form of governance to provide firms with an appropriate legal framework.

Blanche Segrestin

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

The economic utilization and value of time savings to trucking fleets of private firms resulting from improved highways  

E-Print Network [OSTI]

THE ECONOMIC UTILIZATION AND VALUE OF TIME SAVINGS TO TRUCKING FLEETS OF PRIVATE FIRMS RESULTING FROM IMPROVED HIGHWAYS A Thesis By WILLIAM F~N McFARLAND Submitted to the Graduate School of the Agricultural and Mechanical College of Texas... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE MAY 1963 Major Sub)ect: Economics THE ECONOMIC UTILIZATION AND VALUE OF TIME SAVINGS TO TRUCKING FLEETS OF PRIVATE FIRMS RESULTING FROM IMPROVED HIGHWAYS A Thesis...

McFarland, William F

2012-06-07T23:59:59.000Z

202

Development of Advanced Massive Heterogeneous Sensor Networks  

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

Advanced Massive Heterogeneous Sensor Networks Research Team * Doug McCorkle * Kris Bryden * Mark Bryden Ames Laboratory U of Maryland * Ashwani Gupta * Miao Yu Power Plant Challenges * Conflicting goals of reliable low cost energy and climate change mitigation * Large investment in current infrastructure * Little implementation of information technologies Sensors ... * will be "free" * will be small (lick 'n stick) * will be smart * will be ubiquitous Low cost improvements in sensing for control and condition monitoring can result in big improvements in cost and carbon emissions * "... develop the understandings, algorithms, and control strategies needed to utilize large-scale, high- density sensor networks in advanced power plants." * Develop techniques for the

203

Heterogeneously integrated microsystem-on-a-chip  

DOE Patents [OSTI]

A microsystem-on-a-chip comprises a bottom wafer of normal thickness and a series of thinned wafers can be stacked on the bottom wafer, glued and electrically interconnected. The interconnection layer comprises a compliant dielectric material, an interconnect structure, and can include embedded passives. The stacked wafer technology provides a heterogeneously integrated, ultra-miniaturized, higher performing, robust and cost-effective microsystem package. The highly integrated microsystem package, comprising electronics, sensors, optics, and MEMS, can be miniaturized both in volume and footprint to the size of a bottle-cap or less.

Chanchani, Rajen (Albuquerque, NM)

2008-02-26T23:59:59.000Z

204

Firms and sustainability: Mapping the intellectual origins and structure of the corporate sustainability field  

Science Journals Connector (OSTI)

Business research has repeatedly been criticized for its lack of engagement with pressing issues such as climate change, despite a surge of publications on corporate sustainability topics in recent years. We are therefore interested in identifying the knowledge development and knowledge gaps in business scholarship on the relationship between firms, environment and society. This paper provides a systematic review of the corporate sustainability field in form of a bibliometric analysis based on citation data acquired from the Social Sciences Citation Index. The final dataset contained 3117 records published between 1953 and 2011. Our analysis shows that, over the last 50 years, the field of corporate sustainability has emerged from a few primary nodes of research and developed into four distinct conceptual genealogies: corporate social performance theory, stakeholder theory, a corporate social performance versus economic performance debate, and a greening of management debate. The results of our analysis suggest four key findings. First, the four genealogies only comprise a relatively narrowly focused research scope. Second, there is very little integration and citation of work in other disciplinary areas such as ecology or environmental science. Third, the existing literature has a strong focus on empirically examining the relationship between a firm's environmental and/or social performance and its financial performance. Finally, there is little consideration of managerial implications and consequences of climate change in the corporate sustainability literature to date. We suggest that while this may be a reflection of an insular field, it may also be a role played by the management literature turning away from problem based issues in favor of empirical results, theory building, and the identification of variables that influence firm profitability and can be subjected to direct managerial control. We conclude by outlining pathways for future research.

Martina K. Linnenluecke; Andrew Griffiths

2013-01-01T23:59:59.000Z

205

Who is afraid of political risk? Multinational firms and their choice of capital structure  

Science Journals Connector (OSTI)

This paper investigates how multinational firms choose the capital structure of their foreign affiliates in response to political risk. We focus on two choice variables, the leverage and the ownership structure of the foreign affiliate, and we distinguish different types of political risk, such as expropriation, unreliable intellectual property rights and confiscatory taxation. In our theoretical analysis we find that, as political risk increases, the ownership share tends to decrease, whereas leverage can both increase or decrease, depending on the type of political risk. Using the Microdatabase Direct Investment of the Deutsche Bundesbank, we find supportive evidence for these different effects.

Iris Kesternich; Monika Schnitzer

2010-01-01T23:59:59.000Z

206

The Effect of Surface Heterogeneity on Cloud Absorption Estimates  

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

Effect of Surface Heterogeneity on Cloud Absorption Estimates W. J. Wiscombe and A. Marshak National Aeronautics and Space Administration - Goddard Space Flight Center Climate and...

207

A TEN MEGAWATT BOILING HETEROGENEOUS PACKAGE POWER REACTOR. Reactor...  

Office of Scientific and Technical Information (OSTI)

A TEN MEGAWATT BOILING HETEROGENEOUS PACKAGE POWER REACTOR. Reactor Design and Feasibility Problem Re-direct Destination: Temp Data Fields Rosen, M. A.; Coburn, D. B.; Flynn, T....

208

Heterogeneous Structure Around the Jemez Volcanic Field, New...  

Open Energy Info (EERE)

Data Abstract We analyse active-experiment seismic data obtained by the 1993 Jemez Tomography Experiment (JTEX) programme to elucidate the heterogeneous structure of the Jemez...

209

New Embolization Microcoil Consisting of Firm and Flexible Segments: Preliminary Clinical Experience  

SciTech Connect (OSTI)

Purpose. To describe the preliminary clinical experience with a new embolization microcoil. Methods. The microcoil was made of a platinum coil spring, and consisted of firm and flexible segments. The firm segment functioned as an anchor and the flexible segment was well compacted to occlude the arteries. No Dacron fiber was attached. Seventy-one new microcoils were placed via microcatheters in 28 visceral arteries of 17 patients. Two other types of microcoils with Dacron fibers were used together in 8 arteries. Results. Sixty-nine new microcoils were placed and compacted successfully. Two coils were misplaced; one was retrieved and the other was left in the migrated artery, which remained patent 5 months later. All 28 arteries were occluded, and the goals of intervention were achieved successfully in all 17 cases. Conclusion. The new microcoils anchored and compacted well in the arteries. The clinical feasibility of this coil design was confirmed. The additional use of other types of microcoils with Dacron fiber was necessary to obtain rapid occlusion in some cases.

Irie, Toshiyuki [Hitachi General Hospital, Department of Radiology (Japan)], E-mail: toshiyuki.irie@ibabyo.hitachi.co.jp

2006-12-15T23:59:59.000Z

210

Dynamics on modular networks with heterogeneous correlations  

SciTech Connect (OSTI)

We develop a new ensemble of modular random graphs in which degree-degree correlations can be different in each module, and the inter-module connections are defined by the joint degree-degree distribution of nodes for each pair of modules. We present an analytical approach that allows one to analyze several types of binary dynamics operating on such networks, and we illustrate our approach using bond percolation, site percolation, and the Watts threshold model. The new network ensemble generalizes existing models (e.g., the well-known configuration model and Lancichinetti-Fortunato-Radicchi networks) by allowing a heterogeneous distribution of degree-degree correlations across modules, which is important for the consideration of nonidentical interacting networks.

Melnik, Sergey [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland) [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland); Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom); CABDyN Complexity Centre, University of Oxford, Oxford OX1 1HP (United Kingdom); Porter, Mason A. [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom) [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom); CABDyN Complexity Centre, University of Oxford, Oxford OX1 1HP (United Kingdom); Mucha, Peter J. [Department of Mathematics, Carolina Center for Interdisciplinary Applied Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599-3250 (United States) [Department of Mathematics, Carolina Center for Interdisciplinary Applied Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599-3250 (United States); Institute for Advanced Materials, Nanoscience and Technology, University of North Carolina, Chapel Hill, North Carolina 27599-3216 (United States); Gleeson, James P. [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland)] [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland)

2014-06-15T23:59:59.000Z

211

Renewable electricity policies, heterogeneity, and cost effectiveness  

Science Journals Connector (OSTI)

Abstract Renewable electricity policies promote investment in renewable electricity generators and have become increasingly common around the world. Because of intermittency and the composition of other generators in the power system, the value of certain renewable – particularly wind and solar – varies across locations and technologies. This paper investigates the implications of this heterogeneity for the cost effectiveness of renewable electricity policies. A simple model of the power system shows that renewable electricity policies cause different investment mixes. Policies also differ according to their effect on electricity prices, and both factors cause the cost effectiveness to vary across policies. We use a detailed, long-run planning model that accounts for intermittency on an hourly basis to compare the cost effectiveness for a range of policies and alternative parameter assumptions. The differences in cost effectiveness are economically significant, where broader policies, such as an emissions price, outperform renewable electricity policies.

Harrison Fell; Joshua Linn

2013-01-01T23:59:59.000Z

212

Autonomous Demand Response in Heterogeneous Smart Grid Topologies  

E-Print Network [OSTI]

1 Autonomous Demand Response in Heterogeneous Smart Grid Topologies Hamed Narimani and Hamed-mails: narimani-hh@ec.iut.ac.ir and hamed@ee.ucr.edu Abstract--Autonomous demand response (DR) is scalable and has demand response systems in heterogeneous smart grid topologies. Keywords: Autonomous demand response

Mohsenian-Rad, Hamed

213

A Toolkit for Constraint Management in Heterogeneous Information Systems \\Lambda  

E-Print Network [OSTI]

to monitor and enforce distributed integrity constraints in loosely coupled heterogeneous information systems in such environments. Our framework is used to describe (1) interfaces provided by a database for the data items integrity constraints over data that is stored in a collec­ tion of loosely coupled heterogeneous

Chawathe, Sudarshan S.

214

SHORT COMMUNICATION Flow rate-modified streaming effects in heterogeneous  

E-Print Network [OSTI]

the streaming potential (Norde and Rouwendal 1990; Elgersma et al. 1992; Werner et al. 1999) or streamingSHORT COMMUNICATION Flow rate-modified streaming effects in heterogeneous microchannels Junjie Zhu relations is developed to study the streaming potential and streaming current in heterogeneous micro

Xuan, Xiangchun "Schwann"

215

Evaluating the impact of R&D tax credits on innovation: A microeconometric study on Canadian firms  

Science Journals Connector (OSTI)

This study examines the effect of R&D tax credits on innovation activities of Canadian manufacturing firms. Over the 1997–1999 period the Federal and Provincial R&D tax credit programs were used by more than one third of all manufacturing firms and by close to two thirds of firms in high-technology sectors. We investigate the average effect of R&D tax credits on a series of innovation indicators such as: number of new products, sales with new products, originality of innovation, etc. using a non-parametric matching approach. Compared to a hypothetical situation in the absence of R&D tax credits, recipients of tax credits show significantly better scores on most but not all performance indicators. We therefore conclude that tax credits lead to additional innovation output.

Dirk Czarnitzki; Petr Hanel; Julio Miguel Rosa

2011-01-01T23:59:59.000Z

216

The importance of specific human capital, planning and familiarity in Dutch small firm ownership transfers: a seller's perspective  

Science Journals Connector (OSTI)

This study focuses on the transfer process and the importance of human capital and succession planning as firm resource from the seller's perspective. It further differentiates amongst two types of human capital – specific and generic – to predict the transfer duration, obtained price and satisfaction with the transfer. A representative dataset of 112 Dutch small firm owners, who sold their firm in 2005 and 2006, is analysed. Hierarchical multiple regressions show that specific human capital, like flexibility, social skills and market awareness predict transfer performance better than generic human capital like general education. Results also indicate that succession planning in business transfers is unrelated to the objective transfer performance indicators transfer duration and obtained price. Succession planning is strongly related to the subjective transfer performance indicator satisfaction. Results also show that familiarity between seller and buyer rather than kinship or family ties is a key predictor for all transfer performance indicators.

Lex Van Teeffelen; Lorraine Uhlaner; Martijn Driessen

2011-01-01T23:59:59.000Z

217

The glass ceiling in SMEs and its impact on firm managerialisation: a comparison between family and non-family SMEs  

Science Journals Connector (OSTI)

This article aims at comparing family and non-family SMEs with regard to the role of women in ownership, governance and management roles and its relation with the firm managerialisation. We conducted a quantitative deductive design and tested the hypotheses through a questionnaire survey of 313 SMEs in Italy. Findings reveal that family SMEs are a more favourable context for breaking through the glass ceiling. Results also show that in non-family SMEs managerial mechanisms are more relevant when women are involved in governance and managerial roles. On the contrary, in family SMEs, our findings do not outline an active role of women in favouring firm managerialisation.

Lucrezia Songini; Luca Gnan

2014-01-01T23:59:59.000Z

218

ESS 2012 Peer Review - Wind Firming EnergyFarm - Tom Stepien, Primus Power  

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

Wind Firming EnergyFarm DOE Peer Review September 26, 2012 2 Primus Power is on track to deliver EnergyPods TM to California's Modesto Irrigation District starting 2014 EnergyPod TM 250 kW ï‚· 1 MWh PowerBox Supports 8 EnergyPods TM 3 How will storage integrate into Modesto's system? Modesto's daily load ? Storage Hydro Coal & Gas Wind Solar 4 Modesto's 25 MW McHenry solar farm 5 Modesto will use EnergyPods to integrate renewable wind and solar energy 25 MW McHenry Solar Farm 6 Modesto will use EnergyPods to integrate renewable wind and solar energy 25 MW McHenry Solar Farm 8.7 MW up in 15 min 15 MW down in 15 min 4-Aug-12 7 Modesto will use EnergyPods to integrate renewable wind and

219

SF 6432-FP Standard Terms and Conditions for Firm Fixed-price Contracts  

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

FP (04-95) FP (04-95) Sections II & III SECTION II STANDARD TERMS AND CONDITIONS FOR FIRM FIXED PRICE CONTRACTS INDEX OF CLAUSES THE FOLLOWING CLAUSES APPLY TO THIS CONTRACT AS INDICATED UNLESS SPECIFICALLY DELETED, OR EXCEPT TO THE EXTENT THEY ARE SPECIFICALLY SUPPLEMENTED OR AMENDED IN WRITING IN THE SIGNATURE PAGE OR SECTION I. No. Title Page "A" Clauses apply to Requests for Quotation and Contracts at any value A10 Definitions 2 A11 Unclassified Contract 2 A12 Assignment 2 *A13 Releases Void 2 *A14 Notice of Labor Disputes 2 A17 Delegated Representatives 2 *A18 Defense Priority and Allocation System 2 A19 Terms and Conditions 3 *A20 Permits 3 *A23 Applicable Law 3 A25 Commerce in Explosives, Firearms and 3 Ammunition - Exemption *A27 Order of Precedence

220

Human resource practices as engagement driver: an empirical investigation in Indian software development firms  

Science Journals Connector (OSTI)

The current study is amongst the first to delineate an empirical relationship between the human resource (HR) practices and employee engagement. Since HR practices are perceived as organisational intention, its influence on engagement, a much desired work attitude assumes great significance in the globalised business environment prevalent today. The study findings point to a positive and significant influence of high compensation and involvement in decision-making in propagating engagement amongst the workforce. However, gender was only found to moderate the relationship between involvement in decision-making and engagement. The study contributes towards enriching the existing literature available on employee engagement as well as on the influence of HR practices on employee work attitudes. Apart from that, it also recommends suitable managerial implications that can guide the information technology firms in India in gaining an engaged workforce.

Surya Prakash Pati; Pankaj Kumar

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Mathematical model of a utility firm. Final technical report, Part I  

SciTech Connect (OSTI)

Utility companies are in the predicament of having to make forecasts, and draw up plans for the future, in an increasingly fluid and volatile socio-economic environment. The project being reported is to contribute to an understanding of the economic and behavioral processes that take place within a firm, and without it. Three main topics are treated. One is the representation of the characteristics of the members of an organization, to the extent to which characteristics seem pertinent to the processes of interest. The second is the appropriate management of the processes of change by an organization. The third deals with the competitive striving towards an economic equilibrium among the members of a society in the large, on the theory that this process might be modeled in a way which is similar to the one for the intra-organizational ones. This volume covers mainly the first topic.

Not Available

1983-08-21T23:59:59.000Z

222

Tissue Heterogeneity in IMRT Dose Calculation for Lung Cancer  

SciTech Connect (OSTI)

The aim of this study was to evaluate the differences in accuracy of dose calculation between 3 commonly used algorithms, the Pencil Beam algorithm (PB), the Anisotropic Analytical Algorithm (AAA), and the Collapsed Cone Convolution Superposition (CCCS) for intensity-modulated radiation therapy (IMRT). The 2D dose distributions obtained with the 3 algorithms were compared on each CT slice pixel by pixel, using the MATLAB code (The MathWorks, Natick, MA) and the agreement was assessed with the {gamma} function. The effect of the differences on dose-volume histograms (DVHs), tumor control, and normal tissue complication probability (TCP and NTCP) were also evaluated, and its significance was quantified by using a nonparametric test. In general PB generates regions of over-dosage both in the lung and in the tumor area. These differences are not always in DVH of the lung, although the Wilcoxon test indicated significant differences in 2 of 4 patients. Disagreement in the lung region was also found when the {Gamma} analysis was performed. The effect on TCP is less important than for NTCP because of the slope of the curve at the level of the dose of interest. The effect of dose calculation inaccuracy is patient-dependent and strongly related to beam geometry and to the localization of the tumor. When multiple intensity-modulated beams are used, the effect of the presence of the heterogeneity on dose distribution may not always be easily predictable.

Pasciuti, Katia, E-mail: ka.pasciuti@libero.i [Laboratory of Medical Physics, Istituto Regina Elena, Roma (Italy); Iaccarino, Giuseppe; Strigari, Lidia [Laboratory of Medical Physics, Istituto Regina Elena, Roma (Italy); Malatesta, Tiziana [Medical Physics Department, S. Giovanni Calibita, Fatebenefratelli Hospital, Roma (Italy); Benassi, Marcello; Di Nallo, Anna Maria [Laboratory of Medical Physics, Istituto Regina Elena, Roma (Italy); Mirri, Alessandra; Pinzi, Valentina [Division of Radiotherapy, Istituto Regina Elena, Roma (Italy); Landoni, Valeria [Laboratory of Medical Physics, Istituto Regina Elena, Roma (Italy)

2011-07-01T23:59:59.000Z

223

A Framework for Verifying Bit-Level Pipelined Machines Based on Automated Deduction and Decision Procedures  

E-Print Network [OSTI]

on decision procedures because to be industrially appli- cable, we need a firm connection to the RTL level Procedures Panagiotis Manolios1 and Sudarshan K. Srinivasan2 1College of Computing 2School of Electrical & Computer Engineering Georgia Institute of Technology Atlanta, Georgia 30318 1manolios@cc.gatech.edu, 2

Manolios, Panagiotis "Pete"

224

Towards a multifrontal QR factorization for heterogeneous architectures over runtime systems  

E-Print Network [OSTI]

, computer architectures for high performance computing have considerably evolved toward heterogeneous. An example of popular heterogeneous architectures widely adopted in the high performance computing domain

Uçar, Bora

225

Heterogeneous scalable framework for multiphase flows.  

SciTech Connect (OSTI)

Two categories of challenges confront the developer of computational spray models: those related to the computation and those related to the physics. Regarding the computation, the trend towards heterogeneous, multi- and many-core platforms will require considerable re-engineering of codes written for the current supercomputing platforms. Regarding the physics, accurate methods for transferring mass, momentum and energy from the dispersed phase onto the carrier fluid grid have so far eluded modelers. Significant challenges also lie at the intersection between these two categories. To be competitive, any physics model must be expressible in a parallel algorithm that performs well on evolving computer platforms. This work created an application based on a software architecture where the physics and software concerns are separated in a way that adds flexibility to both. The develop spray-tracking package includes an application programming interface (API) that abstracts away the platform-dependent parallelization concerns, enabling the scientific programmer to write serial code that the API resolves into parallel processes and threads of execution. The project also developed the infrastructure required to provide similar API's to other application. The API allow object-oriented Fortran applications direct interaction with Trilinos to support memory management of distributed objects in central processing units (CPU) and graphic processing units (GPU) nodes for applications using C++.

Morris, Karla Vanessa

2013-09-01T23:59:59.000Z

226

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

227

ITER: Japan to assign 20 percent of construction work to EU firms; Proposal for EU official to assume chief executive  

E-Print Network [OSTI]

ITER: Japan to assign 20 percent of construction work to EU firms; Proposal for EU official to assume chief executive position MAINICHI (Top Play) (Lead para.) December 7, 2004 Japan and the European Experimental Reactor (ITER). Japan yesterday revealed the details of a proposal to host the project. Tokyo has

228

EA-1790: Construction and Operation of a Heterogeneous Feed Biorefinery  

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

EA-1790: Construction and Operation of a Heterogeneous Feed EA-1790: Construction and Operation of a Heterogeneous Feed Biorefinery Enerkem Corporation Pontotoc, MS EA-1790: Construction and Operation of a Heterogeneous Feed Biorefinery Enerkem Corporation Pontotoc, MS SUMMARY The U.S. Department of Energy (DOE or the Department) is proposing to provide cost share funding to Enerkem, Inc (Enerkem) for the final design, construction, and operation of a proposed Heterogeneous Feed Biorefinery Project to be located in Pontotoc, Mississippi (hereafter referred to as the biorefinery or the proposed project). The biorefinery would use the dried and post-sorted biomass fraction of municipal solid waste (MSW) and wood biomass as feedstock. Enerkem's biorefinery would produce approximately 10 million gallons (38 million liters) of ethanol per year

229

Transport Upscaling of Adsorbing Solutes in Heterogeneous Media  

E-Print Network [OSTI]

Transport Upscaling of Adsorbing Solutes in Heterogeneous Media #12;Transport in a Homogeneous adsorbed phases. � Apparent adsorption times = r u measured in units u 17 #12;� Adsorption rate = u

Politècnica de Catalunya, Universitat

230

Homogeneous vs Heterogeneous Clustered Sensor Networks: A Comparative Study  

E-Print Network [OSTI]

1 Homogeneous vs Heterogeneous Clustered Sensor Networks: A Comparative Study Vivek Mhatre elected, serve for the entire lifetime of the network) in a homoge- neous network, it is evident

Rosenberg, Catherine P.

231

Structure, Thermodynamics and Kinetics of Chemically Heterogeneous Interfaces  

E-Print Network [OSTI]

), and a metal alloy interface (Cu-Pb). In both systems, interfacial prefreezing (crystal formation above the melting point of the fluid) was observed and this prefreezing was seen to promote heterogeneous nucleation, when the systems were cooled below...

Palafox Hernandez, Jesus Pablo

2011-08-31T23:59:59.000Z

232

MARWIS: A Management Architecture for Heterogeneous Wireless Sensor Networks  

E-Print Network [OSTI]

8. 2 Related Work Most management and code distribution approaches does not support hetero- geneousMARWIS: A Management Architecture for Heterogeneous Wireless Sensor Networks Gerald Wagenknecht Science and Applied Mathematics University of Bern, Switzerland Email: {wagen, anwander, braun, staub

Braun, Torsten

233

Exploiting Heterogeneous Sequence Properties Improves Prediction of Protein Disorder  

E-Print Network [OSTI]

Exploiting Heterogeneous Sequence Properties Improves Prediction of Protein Disorder Zoran disordered regions. Proteins 2005; Suppl 7:176­182. © 2005 Wiley-Liss, Inc. Key words: disorder prediction; intrinsically disor- dered; length dependent predictors INTRODUCTION Intrinsically disordered proteins

Obradovic, Zoran

234

An Intelligent Threat Prevention Framework with Heterogeneous Information  

E-Print Network [OSTI]

An Intelligent Threat Prevention Framework with Heterogeneous Information Wenjun Ma 1 and Weiru Liu 1 Abstract. Three issues usually are associated with threat prevention intelligent surveillance, the de- mand of effectively predicting suspects' intention and ranking the potential threats posed

Liu, Weiru

235

An Advanced Security Infrastructure for Heterogeneous Relational Grid Data Sources  

Science Journals Connector (OSTI)

In this paper we deal with the problem of secure access to metadata information in Grid computing environments. The heterogeneity of the eventual ... database management systems) and the enforcement of security p...

Javier Jaén Martínez; JoséH. Canós

2004-01-01T23:59:59.000Z

236

Effect of Subgrid Heterogeneity on Scaling Geochemical and Biogeochemi...  

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

A Case of U(VI) Desorption. Abstract: The effect of subgrid heterogeneity in sediment properties on the rate of uranylU(VI) desorption was investigated using a sediment...

237

Scaling Laws for the Heterogeneously Heated Free Convective Boundary Layer  

Science Journals Connector (OSTI)

The heterogeneously heated free convective boundary layer (CBL) is investigated by means of dimensional analysis and results from large-eddy simulations (LES) and direct numerical simulations (DNS). The investigated physical model is a CBL that ...

Chiel C. van Heerwaarden; Juan Pedro Mellado; Alberto De Lozar

2014-11-01T23:59:59.000Z

238

Dynamic Heterogeneity-Aware Resource Provisioning in the Cloud  

E-Print Network [OSTI]

energy-efficient computing [2]. As a result, reducing energy consumption has become a primary concern and cooling. Dynamic capacity provisioning is a promising approach for reducing energy consumption heterogeneous machines with different capacities and energy consumption characteristics. Meanwhile

Boutaba, Raouf

239

CORBA: Integrating Diverse Applications Within Distributed Heterogeneous Environments  

E-Print Network [OSTI]

characteristic of large computer networks such as the Internet, the World Wide Web (WWW), and corporate intranets is that they are heterogeneous. For example, a corporate intranet might be made up of mainframes, UNIX workstations and servers

Reverbel, Francisco

240

CORBA: Integrating Diverse Applications Within Distributed Heterogeneous Environments  

E-Print Network [OSTI]

characteristic of large computer networks such as the Internet, the World Wide Web (WWW), and corporate intranets is that they are heterogeneous. For example, a corporate intranet might be made up of mainframes, UNIX workstationsand servers

Narasimhan, Priya

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding  

E-Print Network [OSTI]

Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding Intermediate, the results show that protein folding intermediates are ensembles of different structural forms direct experi- mental evidence in support of a basic tenet of energy landscape theory for protein folding

242

Laser ignition of a heterogeneous nickel-aluminum system  

Science Journals Connector (OSTI)

The ignition of a heterogeneous nickel—aluminum system by laser radiation is investigated experimentally. The ignition characteristics are investigated as a function of ... the samples. It is established that the...

Yu. S. Naiborodenko; V. M. Filatov

243

Stochastic model of heterogeneity in earthquake slip spatial distributions  

Science Journals Connector (OSTI)

......research-article Seismology Stochastic model of heterogeneity in earthquake slip spatial distributions Daniel Lavallee 1 Pengcheng Liu 1 Ralph J. Archuleta 1 2 1 Institute for Crustal Studies, University of California, Santa Barbara, CA 93106, California......

Daniel Lavallée; Pengcheng Liu; Ralph J. Archuleta

2006-05-01T23:59:59.000Z

244

The stem family and labour markets: Reflections on households and firms in Japan's economic development  

Science Journals Connector (OSTI)

This paper examines a view that the traditional stem family system was one of the preconditions for Japan's modern economic development, focusing on labour markets and skill formation practices. The paper begins with a brief look at the Japanese stem family household formation rules. Then, exploration is made, first, on the self-employed, the largest sector of the early modern economy; second, the merchant house and its employment patterns as an origin of present day large corporations' employment system and skill formation and human capital management practices; and third, workshop industries, which formed middle and lower layers of the manufacturing sector in the period of industrialisation. Finally, women's marriage behaviour is examined in relation to labour markets, especially changes in real wages. All this is an attempt to go some way towards a better understanding of the ways in which the family economy and corporate firms worked in economic development, rather than to suggest an alternative hypothesis on the relationship between family and household factors and subsequent economic development.

Osamu Saito

2011-01-01T23:59:59.000Z

245

NMR CHARACTERIZATIONS OF PROPERTIES OF HETEROGENEOUS MEDIA  

SciTech Connect (OSTI)

A critical and long-standing need within the petroleum industry is the specification of suitable petrophysical properties for mathematical simulation of fluid flow in petroleum reservoirs (i.e., reservoir characterization). The development of accurate reservoir characterizations is extremely challenging. Property variations may be described on many scales, and the information available from measurements reflect different scales. In fact, experiments on laboratory core samples, well-log data, well-test data, and reservoir-production data all represent information potentially valuable to reservoir characterization, yet they all reflect information about spatial variations of properties at different scales. Nuclear magnetic resonance (NMR) spectroscopy and imaging (MRI) provide enormous potential for developing new descriptions and understandings of heterogeneous media. NMR has the rare capability to probe permeable media non-invasively, with spatial resolution, and it provides unique information about molecular motions and interactions that are sensitive to morphology. NMR well-logging provides the best opportunity ever to resolve permeability distributions within petroleum reservoirs. We develop MRI methods to determine, for the first time, spatially resolved distributions of porosity and permeability within permeable media samples that approach the intrinsic scale: the finest resolution of these macroscopic properties possible. To our knowledge, this is the first time that the permeability is actually resolved at a scale smaller than the sample. In order to do this, we have developed a robust method to determine of relaxation distributions from NMR experiments and a novel implementation and analysis of MRI experiments to determine the amount of fluid corresponding to imaging regions, which are in turn used to determine porosity and saturation distributions. We have developed a novel MRI experiment to determine velocity distributions within flowing experiments, and developed methodology using that data to determine spatially resolved permeability distributions. We investigate the use of intrinsic properties for developing improved correlations for predicting permeability from NMR well-logging data and for obtaining more accurate estimates of multiphase flow properties--the relative permeability and capillary pressure--from displacement experiments. We demonstrate the use of MRI measurements of saturation and relaxation for prediction wetting-phase relative permeability for unstable experiments. Finally, we developed an improved method for determining surface relaxivity with NMR experiments, which can provide better descriptions of permeable media microstructures and improved correlations for permeability predictions.

C.T. Philip Chang; Changho Choi; Jeromy T. Hollenshead; Rudi Michalak; Jack Phan; Ramon Saavedra; John C. Slattery; Jinsoo Uh; Randi Valestrand; A. Ted Watson; Song Xue

2005-01-01T23:59:59.000Z

246

Robust scheduling of smart appliances with uncertain electricity prices in a heterogeneous population  

Science Journals Connector (OSTI)

Abstract Majority of the research conducted in the field of optimal scheduling of smart appliances does not consider the inherent uncertainties in this problem. Besides, the ones that count for the uncertainty usually assume full knowledge about the exact form of the probability distribution of the uncertain parameters. This assumption is hardly fulfilled in reality. In this paper, we seek to find solutions that are robust with respect to the probability distribution of the uncertain parameters while making no explicit assumptions about their exact forms. Accordingly, we define a chance-constrained model to find the optimal schedule and use robust optimization to characterize its solution and the associated uncertain parameters. We also consider the effect of heterogeneous populations on the optimal solution while simultaneously determining the most appropriate classification for accurate predictions. In the process, we investigate the effect of delays in information sharing on computed optimal conditions and we develop a new classification for in-house appliances. We explore features of our model using price data from the “Olympic Peninsula” project. We anticipate that by pursuing optimal options, a typical customer can save up to 33% in her electricity bills while sacrificing 19% of her comfort level. Moreover, in a heterogeneous population, while the results suggest no direct dependency between savings and income level, a meaningful correlation is detected between savings and employment status.

Nastaran Bassamzadeh; Roger Ghanem; Shuai Lu; Seyed Jalal Kazemitabar

2014-01-01T23:59:59.000Z

247

The more you spend, the more you get? The effects of R&D and capital expenditures on the patenting activities of biotechnology firms  

Science Journals Connector (OSTI)

This paper provides evidence on the mechanisms influencing the patent output of a sample of small and large, entrepreneurial and established biotechnology firms from the input of indirect knowledge acquired from

Roberta Piergiovanni; Enrico Santarelli

2013-02-01T23:59:59.000Z

248

Lattice Boltzmann scheme for fluids with dynamic heterogeneities  

Science Journals Connector (OSTI)

We introduce and discuss a three-dimensional mesoscopic lattice Boltzmann model for the numerical simulation of strongly-interacting fluids with dynamic inhomogeneities. The model is based on an extension of the standard lattice Boltzmann dynamics in which streaming between neighboring lattice sites is constrained by the value of the nonlocal density of the surrounding fluid. The resulting dynamics exhibits typical features of dynamically heterogeneous fluids, such as long-time relaxation, non-Gaussian density distributions and dynamic heterogeneities. Due to its intrinsically parallel dynamics and absence of statistical noise, the method is expected to compute significantly faster than molecular dynamics, Monte Carlo, and lattice glass models.

A. Lamura and S. Succi

2006-06-28T23:59:59.000Z

249

Protein Folding Rates Correlate with Heterogeneity of Folding Mechanism  

Science Journals Connector (OSTI)

By observing trends in the folding kinetics of experimental 2-state proteins at their transition midpoints, and by observing trends in the barrier heights of numerous simulations of coarse-grained, C? model G? proteins, we show that folding rates correlate with the degree of heterogeneity in the formation of native contacts. Statistically significant correlations are observed between folding rates and measures of heterogeneity inherent in the native topology, as well as between rates and the variance in the distribution of either experimentally measured or simulated ? values.

B. Öztop; M. R. Ejtehadi; S. S. Plotkin

2004-11-12T23:59:59.000Z

250

DNA heterogeneity and phosphorylation unveiled by single-molecule electrophoresis  

E-Print Network [OSTI]

scatter plots. Materials and Methods Nucleic Acid Preparations. Synthetic DNA oligonucleotides were purchased from different commercial suppliers. DNA prepared by PCR was amplified with synthetic primers fromDNA heterogeneity and phosphorylation unveiled by single-molecule electrophoresis Hui Wang*, James

251

An analysis and hypothesis generation platform for heterogeneous cancer  

E-Print Network [OSTI]

An analysis and hypothesis generation platform for heterogeneous cancer databases. Philip Roy QUINLAN a,1, Alastair THOMPSON a and Chris REED b a Dundee Cancer Centre, University of Dundee, Ninewells Hospital, Dundee b School of Computing, University of Dundee, Dundee Abstract. The field of cancer research

Reed, Chris

252

Coordinated Output Regulation of Multiple Heterogeneous Linear Systems  

E-Print Network [OSTI]

, the generalizations of coordination of multiple linear dynamic systems to the cooperative output regulation problemCoordinated Output Regulation of Multiple Heterogeneous Linear Systems Ziyang Meng, Tao Yang, Dimos V. Dimarogonas, and Karl H. Johansson Abstract-- The coordinated output regulation problem

Dimarogonas, Dimos

253

Towards Cooperation of Heterogeneous, Autonomous Robots: A Case Study of  

E-Print Network [OSTI]

the hu- manoid robot and the wheeled robot track a moving ball, which is to be approached and kickedTowards Cooperation of Heterogeneous, Autonomous Robots: A Case Study of Humanoid and Wheeled Robots Jutta Kiener and Oskar von Stryk Technische Universit¨at Darmstadt Simulation, Systems

Stryk, Oskar von

254

ADAPTIVE ONLINE ENERGY SAVING FOR HETEROGENEOUS SENSOR Meikang Qiu1  

E-Print Network [OSTI]

ADAPTIVE ONLINE ENERGY SAVING FOR HETEROGENEOUS SENSOR NETWORKS Meikang Qiu1 Jingtong Hu2 Edwin H-to-predict environments and have limited lifetime. We use a novel adaptive online energy saving (AOES) algorithm to save as a probabilistic random variable to save energy by se- lecting the best mode assignment for each node, which

Sha, Edwin

255

Energy Consumption Characteriation of Heterogeneous Servers School of Computer Science  

E-Print Network [OSTI]

Energy Consumption Characteriation of Heterogeneous Servers Xiao Zhang School of Computer Science Machine between servers to save energy. An accurate energy consumption model is the basic of energy management. Most past studies show that energy consumption has linear relation with resource utilization. We

Qin, Xiao

256

Uni ed Support for Heterogeneous Security Policies in Distributed Systems  

E-Print Network [OSTI]

Uni ed Support for Heterogeneous Security Policies in Distributed Systems Naftaly H. Minsky in this paper a security mechanism that can support e ciently, and in a uni ed manner, a wide range of security policies are de ned formallyandexplicitly,and are enforced bya uni ed mechanism. Each policy under

Minsky, Naftaly

257

Technology Offer Heterogeneous Leaching Free Pd-Catalyst  

E-Print Network [OSTI]

Technology Offer Heterogeneous Leaching Free Pd-Catalyst For further information please contact) of the carrier particles and the catalyst Potential Fields of Application Production of substituted biphenyls-coupling reactions Overview The present invention relates to non-leaching Pd-catalysts for C-C, C-O or C-N couplings

258

Grounding Analysis in Heterogeneous Soil Models: Application to Underground Substations  

E-Print Network [OSTI]

Grounding Analysis in Heterogeneous Soil Models: Application to Underground Substations Ignasi category includes all step- up and step-down transmission substations, as well as a number of distribution substations indeed. Nevertheless, the current trend in electric power Engineering moves in another direction

Colominas, Ignasi

259

Single-pulse Raman scattering studies of heterogeneous explosive materials  

SciTech Connect (OSTI)

Raman scattering from ambient and shock-loaded heterogeneous (compressed pure polycrystalline) explosive materials has been examined using single-pulse laser excitation. In the case of triamino-trinitrobenzene (TATB), intense nonlinear scattering at 1170 cm/sup -1/ has been observed.

Trott, W.M.; Renlund, A.M.

1985-05-15T23:59:59.000Z

260

Hydrocarbons Heterogeneous Pyrolysis: Experiments and Modeling for Scramjet Thermal Management  

E-Print Network [OSTI]

1 Hydrocarbons Heterogeneous Pyrolysis: Experiments and Modeling for Scramjet Thermal Management : United States (2008)" #12;2 I. Introduction One of the main issues of the development of scramjet, an air to the endothermicity of its thermal decomposition. Because of the large heat load found in a scramjet, engine

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "firm level heterogeneity" 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

A Gossip Algorithm for Heterogeneous Multi-Vehicle Routing Problems  

E-Print Network [OSTI]

tasks arbitrarily distributed in a plane, to each task is assigned a servicing cost, each vehicle with arbi- trary execution cost and vehicles with different task exe- cution speeds. We provide upperA Gossip Algorithm for Heterogeneous Multi-Vehicle Routing Problems Mauro Franceschelli Daniele

Bullo, Francesco

262

Mechanistic Foam Flow Simulation in Heterogeneous and Multidimensional Porous Media  

E-Print Network [OSTI]

that is analogous to energy and species mass balances7, 8. Accordingly, a separate conservation equation is written flow is multidimensional and the porous medium is heterogeneous. We have incorporated a conservation are predicted, regardless of whether the layers are communicating or isolated. Introduction Field application

Patzek, Tadeusz W.

263

Single molecule tracking of heterogeneous diffusion Jianshu Cao  

E-Print Network [OSTI]

showing no sign of heterogeneities in the ensemble measurement of the diffusion constant. The signature liquids, and colloidal fluids 21­25 . Zwanzig studied percolation in a dynamic disordered system using in the membrane structure 33,34 . Some proteins are transiently confined to small island domains bounded

Cao, Jianshu

264

Modeling Structural Heterogeneity in Proteins From X-Ray Data  

E-Print Network [OSTI]

Modeling Structural Heterogeneity in Proteins From X-Ray Data Ankur Dhanik1 , Henry van den Bedem2: In a crystallographic experiment, a protein is precipitated to obtain a crystalline sample (crystal) containing many determination and density calculation. The protein conformation is modeled by placing the atoms in 3-D space

Pratt, Vaughan

265

Modeling mesoscopic attenuation in a highly heterogeneous Biot's ...  

E-Print Network [OSTI]

mic frequencies is known as “mesoscopic loss”, and is caused by the presence of ... (2007). Then, it is applied to simulate the seismic response of an heterogeneous CO2 ... with this numerical procedure measured in the energy norm is of order h (Ha T. et al. ..... mic modeling for monitoring co2 storage: Pure Appl. Geophys.,.

2009-10-27T23:59:59.000Z

266

TURBULENT SHEAR STRESS IN HETEROGENEOUS SEDIMENT-LADEN FLOWS  

E-Print Network [OSTI]

TURBULENT SHEAR STRESS IN HETEROGENEOUS SEDIMENT-LADEN FLOWS By Hyoseop Woo,1 Associate Member are the beginning of motion of sediment particles and sediment transport in alluvial channels. If shear stress can be well defined in clear-water flows, compar- atively little is known about shear stresses in sediment

Julien, Pierre Y.

267

Cellubrevin-targeted Fluorescence Uncovers Heterogeneity in the Recycling Endosomes*  

E-Print Network [OSTI]

Cellubrevin-targeted Fluorescence Uncovers Heterogeneity in the Recycling Endosomes* (Received, University of California, Berkeley, California 94720-3200 The pH and trafficking of recycling endosomes have-enriched recycling endosomes (pHCb) and FITC-transferrin to measure the pH of transferrin- enriched recycling

Machen, Terry E.

268

MCNP5 Validation for Criticality Calculations: Homogeneous and Heterogeneous Systems  

E-Print Network [OSTI]

OF APPLICABILITY 51 6.1 General Area and Range of Applicability 51 6.2 Westinghouse Specific Area and Range.2 Heterogeneous Systems 42 4.3 Summary 45 5 STATISTICAL EVALUATION 46 5.1 Determination of Upper Subcritical Limit by USLSTATS 46 5.2 Determination of Upper Subcritical Limit Using Lower Tolerance Limit 49 6 AREA AND RANGE

Haviland, David

269

MODELING PHOTOSYNTHESIS OF HETEROGENEOUS ROSE CROP CANOPIES IN THE GREENHOUSE  

E-Print Network [OSTI]

MODELING PHOTOSYNTHESIS OF HETEROGENEOUS ROSE CROP CANOPIES IN THE GREENHOUSE Soo-Hyung Kim and J. Heinrich Lieth Department of Environmental Horticulture University of California Davis, CA 95616-8587, USA training system ("bent canopy") is widely used in greenhouse rose production. The bent canopy consists

Lieth, J. Heinrich

270

Power-Aware Dynamic Task Scheduling for Heterogeneous Accelerated Clusters  

E-Print Network [OSTI]

Power-Aware Dynamic Task Scheduling for Heterogeneous Accelerated Clusters Tomoaki Hamano, Toshio Endo and Satoshi Matsuoka Tokyo Institute of Technology/JST, Japan Abstract Recent accelerators with accelerators and general CPUs are becoming popular, such as LANL's Roadrun- ner and our own TSUBAME

271

Distributed dynamic load balancing for pipelined computations on heterogeneous systems  

Science Journals Connector (OSTI)

One of the most significant causes for performance degradation of scientific and engineering applications on high performance computing systems is the uneven distribution of the computational work to the resources of the system. This effect, which is ... Keywords: Distributed model, Dynamic load balancing algorithms, Loops with dependencies, Master-worker model, Non-dedicated heterogeneous systems, Synchronization, Weighting

Ioannis Riakiotakis; Florina M. Ciorba; Theodore Andronikos; George Papakonstantinou

2011-10-01T23:59:59.000Z

272

Hybrid Heterogeneous Energy Supply Networks Farinaz Koushanfar and Azalia Mirhoseini  

E-Print Network [OSTI]

Hybrid Heterogeneous Energy Supply Networks Farinaz Koushanfar and Azalia Mirhoseini Department--Efficient energy supply, storage, and distribution are key technical challenges for design and operation of electronic systems. In particular, energy supply is the most scarce resource and constraint for mobile

273

Anthropogenic Biomes ver. 1 Anthropogenic biomes represent heterogeneous  

E-Print Network [OSTI]

defined by population density and vegetation cover. The 21 biomes are grouped into six major categoriesAnthropogenic Biomes ver. 1 Africa Anthropogenic biomes represent heterogeneous landscape mosaics: Populated irrigated cropland 34: Populated rainfed cropland 35: Remote croplands 41: Residential rangelands

Columbia University

274

Growth Properties of Artificial Heterogeneous Human Colon Tumors  

Science Journals Connector (OSTI)

...AHT, artificial heterogeneous tumor; CFE, colony-forming efficiency; CC, carrying...counted by eye for estimation of the overall CFE from each sample. Each colony was visually...confident that not only could the overall CFE from each tumor be measured, but that we...

John T. Leith; Seth Michelson; Lynn E. Faulkner; Sarah F. Bliven

1987-02-15T23:59:59.000Z

275

Reliability of Heterogeneous Distributed Computing Systems in the Presence  

E-Print Network [OSTI]

Reliability of Heterogeneous Distributed Computing Systems in the Presence of Correlated Failures of correlated failures are also investigated. Index Terms--Distributed computing, load balancing, reliability Jorge E. Pezoa, Member, IEEE and Majeed M. Hayat, Fellow, IEEE Abstract--While the reliability

Hayat, Majeed M.

276

Forensic Tracking and Surveillance Algorithms for Homogeneous and Heterogeneous Settings  

E-Print Network [OSTI]

Forensic Tracking and Surveillance Algorithms for Homogeneous and Heterogeneous Settings Submitted-Kuwari) Date: #12;"I cannot succeed except through God" #12;Abstract Digital forensics is an emerging field. Traditionally, digital forensics has been confined to the extraction of digital evidence from electronic devices

Sheldon, Nathan D.

277

Measuring Heterogeneity in Forensic Databases Using Hierarchical Bayes Models  

E-Print Network [OSTI]

Measuring Heterogeneity in Forensic Databases Using Hierarchical Bayes Models By Kathryn Roeder, as currently defined, do not uniquely identify individuals. For criminal cases involving DNA evidence, forensic­ ing profiles are based on reference populations maintained by forensic testing laboratories. Each

278

WHAT DO THREAT LEVELS AND RESPONSE LEVELS MEAN? THREAT LEVELS  

E-Print Network [OSTI]

WHAT DO THREAT LEVELS AND RESPONSE LEVELS MEAN? THREAT LEVELS: The UK Threat Level is decided by the Government's Joint Terrorism Analysis Centre (JTAC). It is the system to assess the threat to the UK from Threat Levels: Low - an attack is unlikely Moderate - an attack is possible, but not likely Substantial

Edinburgh, University of

279

Characterization of oil and gas reservoir heterogeneity. Final report  

SciTech Connect (OSTI)

Research described In this report addresses the internal architecture of two specific reservoir types: restricted-platform carbonates and fluvial-deltaic sandstones. Together, these two reservoir types contain more than two-thirds of the unrecovered mobile oil remaining ill Texas. The approach followed in this study was to develop a strong understanding of the styles of heterogeneity of these reservoir types based on a detailed outcrop description and a translation of these findings into optimized recovery strategies in select subsurface analogs. Research targeted Grayburg Formation restricted-platform carbonate outcrops along the Algerita Escarpment and In Stone Canyon In southeastern New Mexico and Ferron deltaic sandstones in central Utah as analogs for the North Foster (Grayburg) and Lake Creek (Wilcox) units, respectively. In both settings, sequence-stratigraphic style profoundly influenced between-well architectural fabric and permeability structure. It is concluded that reservoirs of different depositional origins can therefore be categorized Into a ``heterogeneity matrix`` based on varying intensity of vertical and lateral heterogeneity. The utility of the matrix is that it allows prediction of the nature and location of remaining mobile oil. Highly stratified reservoirs such as the Grayburg, for example, will contain a large proportion of vertically bypassed oil; thus, an appropriate recovery strategy will be waterflood optimization and profile modification. Laterally heterogeneous reservoirs such as deltaic distributary systems would benefit from targeted infill drilling (possibly with horizontal wells) and improved areal sweep efficiency. Potential for advanced recovery of remaining mobile oil through heterogeneity-based advanced secondary recovery strategies In Texas is projected to be an Incremental 16 Bbbl. In the Lower 48 States this target may be as much as 45 Bbbl at low to moderate oil prices over the near- to mid-term.

Tyler, N.; Barton, M.D.; Bebout, D.G.; Fisher, R.S.; Grigsby, J.D.; Guevara, E.; Holtz, M.; Kerans, C.; Nance, H.S.; Levey, R.A.

1992-10-01T23:59:59.000Z

280

The Hierarchy of Adsorption Models for Laterally Interacting Molecules on Heterogeneous Surfaces  

Science Journals Connector (OSTI)

Real adsorbents are heterogeneous, therefore, the computation of the adsorption characteristics for any concentration of adsorbate must take account of the joint effect of the lateral interaction between adsorbed molecules and surface heterogeneity. The ...

Yu. K. Tovbin

1997-03-05T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

E-Print Network 3.0 - adaptive heterogeneous multi-robot Sample...  

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

heterogeneous multi-robot Search Powered by Explorit Topic List Advanced Search Sample search results for: adaptive heterogeneous multi-robot Page: << < 1 2 3 4 5 > >> 1 (as of 8...

282

ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS  

E-Print Network [OSTI]

ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS Jeremy Engineering University of Michigan Summer 2010 Forthcoming in International Journal of Research in Marketing of Business. #12;- 1 - ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS

Papalambros, Panos

283

Enhancing marketing with engineering: Optimal product line design for heterogeneous markets  

E-Print Network [OSTI]

Enhancing marketing with engineering: Optimal product line design for heterogeneous markets Jeremy design and development often require a balance of technical and market tradeoffs. Quantitative methods with an eye toward market consequences, particularly when heterogeneous market preferences make

Michalek, Jeremy J.

284

Federating Distributed and Heterogeneous Information Sources in Neuroimaging: The NeuroBase Project Federating Distributed and Heterogeneous In-  

E-Print Network [OSTI]

Federating Distributed and Heterogeneous Information Sources in Neuroimaging: The NeuroBase ProjectBase Project C. Barillot1 , H. Benali2 , M. Dojat4 , A. Gaignard1 , B. Gibaud1 , S. Kinkingnéhun2 , J Sources in Neuroimaging: The NeuroBase Project C. Barillot1 , H. Benali2 , M. Dojat3 , A. Gaignard1 , B

Boyer, Edmond

285

Development Plus Kinetic and Mechanistic Studies of a Prototype Supported-Nanoparticle Heterogeneous Catalyst  

E-Print Network [OSTI]

-Nanoparticle Heterogeneous Catalyst Formation System in Contact with Solution: Ir(1,5-COD)Cl/ -Al2O3 and Its Reduction by H2 to prepare the next generation of improved, supported-nanoparticle heterogeneous catalysts. It is precisely are eight criteria defining a prototype system for supported-nanoparticle heterogeneous catalyst formation

Frenkel, Anatoly

286

Effective friction law for smallscale fault heterogeneity in 3D dynamic rupture  

E-Print Network [OSTI]

Effective friction law for smallscale fault heterogeneity in 3D dynamic rupture S. Latour,1 M friction, we numerically construct effective friction laws that integrate the effects of smallscale, the static friction heterogeneities and the friction law. We first define a periodic smallscale heterogeneous

Nicolas, Chamot-Rooke

287

Mining Large Heterogeneous Graphs using Cray s Urika  

SciTech Connect (OSTI)

Pattern discovery and predictive modeling from seemingly related Big Data represented as massive, ad-hoc, heterogeneous networks (e.g., extremely large graphs with complex, possibly unknown structure) is an outstanding problem in many application domains. To address this problem, we are designing graph-mining algorithms capable of discovering relationship-patterns from such data and using those discovered patterns as features for classification and predictive modeling. Specifically, we are: (i) exploring statistical properties, mechanics and generative models of behavior patterns in heterogeneous information networks, (ii) developing novel, automated and scalable graph-pattern discovery algorithms and (iii) applying our relationship-analytics (data science + network science) expertise to domains spanning healthcare to homeland security.

Sukumar, Sreenivas R [ORNL] [ORNL; Bond, Nathaniel A [ORNL] [ORNL

2013-01-01T23:59:59.000Z

288

Fluxes of water and energy in physically heterogeneous environments  

SciTech Connect (OSTI)

This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). Fluxes of water and energy at the near-surface environment are tightly interrelated with a heterogeneous vegetation pattern that is a mosaic of tree canopies and intercanopy area. The objective was to improve the ability to predict these interrelationships, which are not well quantified. The authors (1) quantified how vegetation overstory determines the patterns of soil moisture and near-ground solar radiation, (2) developed spatial neighborhood analyses that demonstrated how woody plants exploit canopy/intercanopy heterogeneity, (3) developed a spatially explicit model for predicting near-ground solar radiation for sites along a grassland-forest continuum, (4) developed a water balance model that predicted temporal shifts in soil moisture between canopy and intercanopy patches, and (5) used the collective results to assess large-scale ecosystem responses to climate variations that lead to accelerated soil erosion.

Breshears, D.D.; Barnes, F.J.; Davenport, D.W. [and others

1997-11-01T23:59:59.000Z

289

Correlating Spatial Heterogeneities in Porosity and Permeability with Metal  

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

Correlating Spatial Heterogeneities in Porosity and Permeability with Metal Correlating Spatial Heterogeneities in Porosity and Permeability with Metal Poisoning within an Individual Catalyst Particle using X-ray Microscopy Wednesday, August 21, 2013 - 1:30pm SLAC, Conference Room 137-226 Presented by Darius Morris, Stanford Synchrotron Radiation Lightsource Fluid catalytic cracking (FCC) is a refining process for converting large and/or heavy molecules of oil feedstock into smaller and lighter hydrocarbons such as gasoline. During the cracking process, metal contaminants from the oil feedstock deactivate and restrict access into the catalyst particle, thus reducing the yield of gasoline byproducts. Full-field transmission X-ray microscopy (TXM) has been used to determine the 3D composition and structure of an equilibrated (spent) FCC particle in

290

Fluctuation relation and heterogeneous superdiffusion in glassy transport  

Science Journals Connector (OSTI)

Current fluctuations and related steady-state fluctuation relation are investigated in simple coarse-grained lattice-gas analogs of a non-Newtonian fluid driven by a constant and uniform force field in two regimes of small entropy production. Non-Gaussian current fluctuations and deviations from fluctuation relation are observed and related to the existence of growing amorphous correlations and heterogeneous anomalous diffusion regimes.

Mauro Sellitto

2009-07-27T23:59:59.000Z

291

Fluctuation relation and heterogeneous superdiffusion in glassy transport  

E-Print Network [OSTI]

Current fluctuations and related steady state fluctuation relation are investigated in simple coarse-grained lattice-gas analogs of a non-Newtonian fluid driven by a constant and uniform force field, in two regimes of small entropy production. Non-Gaussian current fluctuations and deviations from fluctuation relation are observed and related to the existence of growing amorphous correlations and heterogeneous anomalous diffusion regimes.

Mauro Sellitto

2009-03-19T23:59:59.000Z

292

The biodegradation of organic acids by a heterogeneous bacterial culture  

E-Print Network [OSTI]

- tion of fatty acids results in multiple cleavage of the molecules to form shorter chain acids. It has been found (1I) that ethanoic and butanoic are the principle volatile acids present during digestion of sewage sludge while propanoic and pentanoic... was developed from a heterogeneous culture found in a sewage plant effluent. The culture was developed in a bench scale continuous flow activated. sludge reactor, and individual studies were made in a bench scale aerated batch reactor. The acids used were...

Tyer, Bobby Ray

1968-01-01T23:59:59.000Z

293

Dynamics and control of a heterogeneous azeotropic distillation column: Conventional control approach  

SciTech Connect (OSTI)

In this work, bifurcation analysis and dynamic simulation were used to investigate the optimum conventional control strategy of an isopropyl alcohol (IPA), cyclohexane (CyH), and water (H{sub 2}O) heterogeneous azeotropic column. Steady-state process analysis shows that the optimal operation point should be located at a critical reflux, a transition point at which the distillation path switches from a route that passes through the IPA + H{sub 2}O azeotrope to one that passes through the IPA + CyH azeotrope. A good control strategy must be able to maintain a steady column temperature profile that shows a plateau near 70 C to ensure passage around the IPA + CyH azeotrope. An inverse double-loop control strategy is proposed based on principal component analysis. This scheme is capable of maintaining the desired column temperature profile given all kinds of feed disturbances, thus keeping the product IPA purity at the desired level.

Chien, I.L. [National Taiwan Univ. of Science and Technology, Taipei (Taiwan, Province of China). Dept. of Chemical Engineering; Wang, C.J.; Wong, D.S.H. [National Tsing Hua Univ., Hsinchu (Taiwan, Province of China). Dept. of Chemical Engineering

1999-02-01T23:59:59.000Z

294

Development of a navigation system for heterogeneous mobile robots  

Science Journals Connector (OSTI)

Navigation systems often play an important role in mobile robot control. Many existing mobile robot navigation systems have been implemented and tested for particular types of robots. However, in some implementations, such as heterogeneous multi-robot systems, a generic navigation system can offer potential advantages. In such applications, a generic navigation system should be able account for robots with varying size, shape, drive type and sensor quantities. Additionally, it should be capable of offering a high degree of flexibility for navigation in known and unknown environments. Hence, a single generic navigation system that combines the benefits of reactive and deliberative control has been developed for heterogeneous mobile robots. The design of the hierarchical hybrid navigation system is based on the A* algorithm, a polar histogram and a modified dynamic window approach. Simulation experiments with three heterogeneous robots in a range of environments have been conducted. Performance of reactive navigation and hybrid reactive-deliberative navigation in known and unknown environments is evaluated. Favourable results are achieved with the developed reactive system. Hybrid reactive-deliberative navigation offers improved performance over reactive navigation in known environments. Deliberative control does not affect performance significantly in unknown environments. Initial hardware experiments demonstrate that the navigation system can work on real robots.

Praneel Chand; Dale A. Carnegie

2011-01-01T23:59:59.000Z

295

An identification of financial and production performance variables as key indicators of dairy firm failure  

E-Print Network [OSTI]

Model 57 10 Maximum likelihood Estimates for Combined Model 61 LIST OF FIGURES Figure Page 1. Trend of Leverage Ratio 43 2. Trend of the Rate of Return on Assets 3. Probability of Success at Selected Levels of Days Open and Voluntary Culling Rates... asset values and a reduction in farm earning potential. Thus periods of price enhancement, and the following periods of adjustment lead to increased uncertainty and effect the financial performance and viability of a dairy producer. The most recent...

Law, James Michael

2012-06-07T23:59:59.000Z

296

Support Vector Machines for Predictive Modeling in Heterogeneous Catalysis:? A Comprehensive Introduction and Overfitting Investigation Based on Two Real Applications  

Science Journals Connector (OSTI)

The SVM methodology is evaluated using experimental data derived from exploration/optimization of heterogeneous catalysts in two different industrial fields:? oil refining and petrochemistry, the selected reactions for each application being n-alkane isomerization in gasoline and olefin epoxidation. ... However, the parameters' setting is independent of the benchmark, and a way to characterize the mostly unknown real search space for comparison with the benchmarks remains to be found. ... One should always test its methodology on benchmarks, since different levels of complexity can be artificially created, and the cost of experiments is null. ...

L. A. Baumes; J. M. Serra; P. Serna; A. Corma

2006-05-13T23:59:59.000Z

297

"Optimum production--investment controls for the representative shrimp production firm.  

E-Print Network [OSTI]

in determining the level at which the species can maintain itself. The shrimp fishery is the nation's most valuable, and one of few which has shown expansion in recent years-, the value of landings in the industry as a whole showing a slight decline... largely due to expansion of the shrimp industry that the Gulf Coast's relative position to other areas, in both volume and value, has lately increased. 22 V. TWO MODELS FOR THE SHRIMP FISHERY In this section, two models, for the shrimp fishery...

Greene, Leon James

1969-01-01T23:59:59.000Z

298

Development of an Implementation Plan for an Electronic Document Management System in a Global Engineering Firm  

E-Print Network [OSTI]

that these field surveys can also be used to determine (Smith 1997): usage patterns level of training required operating environment security constraints and other factors that may affect development and deployment of the system Robert N. Kisuve... and Training PowerPoint/Video System Z Briefing 10/02/09 – Project Navigation PowerPoint/Video System Z Briefing 10/09/09 – Copy & Export PowerPoint/Video System Z Briefing 10/16/09 – 2009-2011 Deployment Plan PowerPoint/Video ProjectWise Environments Power...

Kisuve, Robert N.

2011-05-20T23:59:59.000Z

299

MRI of Heterogeneous Hydrogenation Reactions Using Parahydrogen Polarization  

SciTech Connect (OSTI)

The power of magnetic resonance imaging (MRI) is its ability to image the internal structure of optically opaque samples and provide detailed maps of a variety of important parameters, such as density, diffusion, velocity and temperature. However, one of the fundamental limitations of this technique is its inherent low sensitivity. For example, the low signal to noise ratio (SNR) is particularly problematic for imaging gases in porous materials due to the low density of the gas and the large volume occluded by the porous material. This is unfortunate, as many industrially relevant chemical reactions take place at gas-surface interfaces in porous media, such as packed catalyst beds. Because of this severe SNR problem, many techniques have been developed to directly increase the signal strength. These techniques work by manipulating the nuclear spin populations to produce polarized} (i.e., non-equilibrium) states with resulting signal strengths that are orders of magnitude larger than those available at thermal equilibrium. This dissertation is concerned with an extension of a polarization technique based on the properties of parahydrogen. Specifically, I report on the novel use of heterogeneous catalysis to produce parahydrogen induced polarization and applications of this new technique to gas phase MRI and the characterization of micro-reactors. First, I provide an overview of nuclear magnetic resonance (NMR) and how parahydrogen is used to improve the SNR of the NMR signal. I then present experimental results demonstrating that it is possible to use heterogeneous catalysis to produce parahydrogen-induced polarization. These results are extended to imaging void spaces using a parahydrogen polarized gas. In the second half of this dissertation, I demonstrate the use of parahydrogen-polarized gas-phase MRI for characterizing catalytic microreactors. Specifically, I show how the improved SNR allows one to map parameters important for characterizing the heat and mass transport in a heterogeneous catalyst bed. This is followed by appendices containing detailed information regarding the design and use of my experimental setup.

Burt, Scott R; Burt, Scott R.

2008-06-25T23:59:59.000Z

300

A heterogeneous hierarchical architecture for real-time computing  

SciTech Connect (OSTI)

The need for high-speed data acquisition and control algorithms has prompted continued research in the area of multiprocessor systems and related programming techniques. The result presented here is a unique hardware and software architecture for high-speed real-time computer systems. The implementation of a prototype of this architecture has required the integration of architecture, operating systems and programming languages into a cohesive unit. This report describes a Heterogeneous Hierarchial Architecture for Real-Time (H{sup 2} ART) and system software for program loading and interprocessor communication.

Skroch, D.A.; Fornaro, R.J.

1988-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

A microrheological study of hydrogel kinetics and micro-heterogeneity  

E-Print Network [OSTI]

DOI 10.1140/epje/i2014-14044-y Regular Article Eur. Phys. J. E (2014) 37: 44 THE EUROPEAN PHYSICAL JOURNAL E A microrheological study of hydrogel kinetics and micro-heterogeneity Anders Aufderhorst-Roberts1,a, William J. Frith2, and Athene M. Donald... unique mechan- ical properties [5]. The range of available low-molecular-weight hydro- gelating systems has increased in recent years as their discovery has steadily relied more upon rational de- sign and less upon serendipity [6]. Hydrogelating sys- tems...

Aufderhorst-Roberts, Anders; Frith, William J.; Donald, Athene M.

2014-05-27T23:59:59.000Z

302

Dynamical heterogeneities in an attraction driven colloidal glass  

E-Print Network [OSTI]

The dynamical heterogeneities (DH) in non-ergodic states of an attractive colloidal glass are studied, as a function of the waiting time. Whereas the fluid states close to vitrify showed strong DH, the distribution of squared displacements of the glassy states studied here only present a tail of particles with increased mobility for the lower attraction strength at short waiting times. These particles are in the surface of the percolating cluster that comprises all of the particles, reminiscent of the fastest particles in the fluid. The quench deeper into the attractive glass is dynamically more homogeneous, in agreement with repulsive glasses (i.e. Lennard-Jones glass).

Antonio M. Puertas; Matthias Fuchs; Michael E. Cates

2005-10-17T23:59:59.000Z

303

Exploring open innovation approaches adopted by small and medium firms in emerging/growth industries: case studies from Daegu-Gyeongbuk region of South Korea  

Science Journals Connector (OSTI)

This study explores the status of open innovation in small and medium firms that operate in emerging or growth technological industries that have been designated as new growth engines in the Daegu-Gyeongbuk district in South Korea. Chesbrough (2003, 2006a,b) had demonstrated that the motive power of growth and development of big enterprises, be it in hi-tech or low-tech industries of USA, is 'open innovation'. Studies that followed examined the relationship between open innovation and industry performance had focused considerably on developed/mature industries. Though they analysed open innovation of small and medium firms, their analysis was limited to statistical relationships between open innovation and industry performances. Through the case studies this study's findings indicate that small and medium firms in South Korea seem to be dynamically adopting open innovation in the process of changing their business lines to more prospective hi-tech areas for their existence. It also seems that continuous growth and development could not be expected with closed innovation, and that the existence of small and medium firms can be threatened during verification period because it takes considerable time to get approval or support form markets or science and technology business circle.

Jin-Hyo Joseph Yun; Avvari V. Mohan

2012-01-01T23:59:59.000Z

304

Modeling the Cost Structure of Public Transit Firms: Scale Economies and Functional Form (#09-3435) Michael Iacono, University of Minnesota  

E-Print Network [OSTI]

Modeling the Cost Structure of Public Transit Firms: Scale Economies and Functional Form (#09-3435) Michael Iacono, University of Minnesota Abstract This study analyzes the cost structure of a set of medium in the production of transit services. Short and long-run costs are modeled using two of the more commonly

Levinson, David M.

305

Experiments and analysis for an axially heterogeneous LMR assembly at ZPPR  

SciTech Connect (OSTI)

Experiments in ZPPR-17 provided physics data for a full-scale (700 MWe) axially heterogeneous LMR. Measurements and analysis are reported for control rod worths, reaction rate distributions, gamma dose distribution, sodium void worths and criticality. Agreement between measurement and calculation are generally satisfactory, but the axial heterogeneity did introduce analytical complications. Some calculational methods gave less good agreement with measurements than in previous homogeneous or radially heterogeneous assemblies. 10 refs., 7 figs., 6 tabs.

Collins, P.J.; Brumbach, S. B.

1988-01-01T23:59:59.000Z

306

Monodisperse Platinum and Rhodium Nanoparticles as Model Heterogeneous Catalysts  

SciTech Connect (OSTI)

Model heterogeneous catalysts have been synthesized and studied to better understand how the surface structure of noble metal nanoparticles affects catalytic performance. In this project, monodisperse rhodium and platinum nanoparticles of controlled size and shape have been synthesized by solution phase polyol reduction, stabilized by polyvinylpyrrolidone (PVP). Model catalysts have been developed using these nanoparticles by two methods: synthesis of mesoporous silica (SBA-15) in the presence of nanoparticles (nanoparticle encapsulation, NE) to form a composite of metal nanoparticles supported on SBA-15 and by deposition of the particles onto a silicon wafer using Langmuir-Blodgett (LB) monolayer deposition. The particle shapes were analyzed by transmission electron microscopy (TEM) and high resolution TEM (HRTEM) and the sizes were determined by TEM, X-ray diffraction (XRD), and in the case of NE samples, room temperature H2 and CO adsorption isotherms. Catalytic studies were carried out in homebuilt gas-phase reactors. For the nanoparticles supported on SBA-15, the catalysts are in powder form and were studied using the homebuilt systems as plug-flow reactors. In the case of nanoparticles deposited on silicon wafers, the same systems were operated as batch reactors. This dissertation has focused on the synthesis, characterization, and reaction studies of model noble metal heterogeneous catalysts. Careful control of particle size and shape has been accomplished though solution phase synthesis of Pt and Rh nanoparticles in order to elucidate further structure-reactivity relationships in noble metal catalysis.

Coble, Inger M

2008-08-15T23:59:59.000Z

307

Mathematical modeling of heterogeneous detonation in gas suspensions of aluminum and coal-dust particles  

SciTech Connect (OSTI)

Results of investigations performed by the authors in the field of theoretical and numerical modeling of heterogeneous detonation of reacting gas suspensions since 2005 are systematized.

Fedorov, A.V.; Fomin, V.M.; Khmel, T.A. [Russian Academy of Sciences, Novosibirsk (Russian Federation)

2009-07-15T23:59:59.000Z

308

E-Print Network 3.0 - aquifer heterogeneity final Sample Search...  

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

-30 may-1th june 2006, Dijon, France Summary: is considered like a heterogeneous aquifer: permeability tensor and salt water interface position could... International symposium -...

309

The application of inelastic neutron scattering to the investigation of industrial heterogeneous catalysts.  

E-Print Network [OSTI]

??Vibrational spectroscopy has been used to probe the surface chemistry of two heterogeneous catalysts. This has principally involved the application of infrared (IR) spectroscopy and… (more)

Hamilton, Neil G.

2010-01-01T23:59:59.000Z

310

Fracture permeability and seismic wave scattering--Poroelastic linear-slip interface model for heterogeneous fractures  

E-Print Network [OSTI]

modeling of faults and fractures: Geophysics, 60, 1514-1526.Poroelastic modeling of fracture-seismic wave interaction:by a heterogeneous fracture: J. Acoust. Soc. Am. , 115,

Nakagawa, S.

2010-01-01T23:59:59.000Z

311

Prevalence estimation under heterogeneity in the example of bovine trypanosomosis in Uganda  

E-Print Network [OSTI]

Prevalence estimation under heterogeneity in the example of bovine trypanosomosis in Uganda Dankmar of bovine trypanosomosis in Mukono County, Uganda. Fifty farms (referred to as clusters), were sampled

Boehning, Dankmar

312

E-Print Network 3.0 - analyzing heterogeneous samples Sample...  

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

heterogeneities Abdulla M. Al-Qawasmeh Anthony A. Maciejewski Haonan Wang Jay Smith Howard Jay Siegel... Jerry Potter Springer Science+Business Media, LLC 2011...

313

Heterogeneous seepage at the Nopal I natural analogue site, Chihuahua, Mexico  

SciTech Connect (OSTI)

An integrated field, laboratory, and modeling study of the Pena Blanca (Chihuahua, Mexico) natural analogue site is being conducted to evaluate processes that control the mobilization and transport of radionuclides from a uranium ore deposit. One component of this study is an evaluation of the potential for radionuclide transport through the unsaturated zone (UZ) via a seepage study in an adit at the Nopal I uranium mine, excavated 10 m below a mined level surface. Seasonal rainfall on the exposed level surface infiltrates into the fractured rhyolitic ash-flow tuff and seeps into the adit. An instrumented seepage collection system and local automated weather station permit direct correlation between local precipitation events and seepage within the Nopal I +00 adit. Monitoring of seepage within the adit between April 2005 and December 2006 indicates that seepage is highly heterogeneous with respect to time, location, and quantity. Within the back adit area, a few zones where large volumes of water have been collected are linked to fast flow path fractures (0-4 h transit times) presumably associated with focused flow. In most locations, however, there is a 1-6 month time lag between major precipitation events and seepage within the adit, with longer residence times observed for the front adit area. Seepage data obtained from this study will be used to provide input to flow and transport models being developed for the Nopal I hydrogeologic system.

Dobson, Patrick F.; Cook, Paul J.; Ghezzehei, Teamrat A.; Rodriguez, J. Alfredo; Villalba, Lourdes; de la Garza, Rodrigo

2008-10-25T23:59:59.000Z

314

Modelling long-distance seed dispersal in heterogeneous landscapes.  

SciTech Connect (OSTI)

1. Long-distance seed dispersal is difficult to measure, yet key to understanding plant population dynamics and community composition. 2. We used a spatially explicit model to predict the distribution of seeds dispersed long distances by birds into habitat patches of different shapes. All patches were the same type of habitat and size, but varied in shape. They occurred in eight experimental landscapes, each with five patches of four different shapes, 150 m apart in a matrix of mature forest. The model was parameterized with smallscale movement data collected from field observations of birds. In a previous study we validated the model by testing its predictions against observed patterns of seed dispersal in real landscapes with the same types and spatial configuration of patches as in the model. 3. Here we apply the model more broadly, examining how patch shape influences the probability of seed deposition by birds into patches, how dispersal kernels (distributions of dispersal distances) vary with patch shape and starting location, and how movement of seeds between patches is affected by patch shape. 4. The model predicts that patches with corridors or other narrow extensions receive higher numbers of seeds than patches without corridors or extensions. This pattern is explained by edgefollowing behaviour of birds. Dispersal distances are generally shorter in heterogeneous landscapes (containing patchy habitat) than in homogeneous landscapes, suggesting that patches divert the movement of seed dispersers, ‘holding’ them long enough to increase the probability of seed defecation in the patches. Dispersal kernels for seeds in homogeneous landscapes were smooth, whereas those in heterogenous landscapes were irregular. In both cases, long-distance (> 150 m) dispersal was surprisingly common, usually comprising approximately 50% of all dispersal events. 5. Synthesis . Landscape heterogeneity has a large influence on patterns of long-distance seed dispersal. Our results suggest that long-distance dispersal events can be predicted using spatially explicit modelling to scale-up local movements, placing them in a landscape context. Similar techniques are commonly used by landscape ecologists to model other types of movement; they offer much promise to the study of seed dispersal.

Levey, Douglas, J.; Tewlsbury, Joshua, J.; Bolker, Benjamin, M.

2008-01-01T23:59:59.000Z

315

Global Thermodynamic Atmospheric Modeling: Search for NewHeterogeneous Reactions  

SciTech Connect (OSTI)

This article demonstrates quantitatively how far reactions are from chemical equilibrium over the full space of a two-dimensional atmospheric model. This method could be used with data where an instrument-equipped aircraft measures numerous species simultaneously, An atmospheric reaction is displaced from equilibrium by solar radiation and relocation of species by atmospheric motions. One purpose of this study is to seek additional stratospheric or tropospheric gas-phase chemical reactions that might undergo heterogeneous catalysis. Hypothetical cases can be rapidly screened in terms of their thermodynamic potential to react under measured or modeled atmospheric conditions of temperature and local species concentrations. If a reaction is interesting, is slow in the gas phase, and has a high thermodynamic tendency to react, it is a good candidate for a laboratory study to seek a heterogeneous catalyst, if the reaction is thermodynamically unfavorable, there is no catalyst that can cause the reaction to occur. If a reaction is thermodynamically favored to occur but also endothermic, it will tend to be slow at stratospheric temperatures. We find, as expected, that four heterogeneous reactions important in causing the Antarctic ''ozone hole'' have high thermodynamic tendencies to occur under atmospheric conditions, but one of these is only weakly thermodynamically allowed in some regions of the atmosphere. The reaction of SO2 and HNO3 to form HONO has a high thermodynamic potential to occur, is a well-known laboratory reaction at ice temperature, and may occur in nitric acid-rich sulfate aerosols. Throughout the troposphere and stratosphere, we find that formaldehyde has an extremely high thermodynamic potential to reduce nitric acid. Formaldehyde is known to stick to and remain in sulfuric acid solution, where it adds water to form H2C(OH)(2). Near room-temperature H2C(OH)(2) reacts with nitric acid in a two-step mechanism to form two molecules of HONO, but the rate of this process under conditions of stratospheric sulfuric acid aerosols is unknown.

Fairbrother, D.H.; Sullivan, D.S.D.; Johnston, H.S.

1997-07-03T23:59:59.000Z

316

On Nuclear Energy Levels  

Science Journals Connector (OSTI)

...research-article On Nuclear Energy Levels K. M. Guggenheimer The formula for the energy levels of the rigid rotator...nuclei. Two kinds of nuclear rotation are discussed...an A relation for the energy levels of different nuclei...

1942-01-01T23:59:59.000Z

317

Heterogeneous electrocatalysis in porous cathodes of solid oxide fuel cells  

E-Print Network [OSTI]

A general physics-based model is developed for heterogeneous electrocatalysis in porous electrodes and used to predict and interpret the impedance of solid oxide fuel cells. This model describes the coupled processes of oxygen gas dissociative adsorption and surface diffusion of the oxygen intermediate to the triple phase boundary, where charge transfer occurs. The model accurately captures the Gerischer-like frequency dependence and the oxygen partial pressure dependence of the impedance of symmetric cathode cells. Digital image analysis of the microstructure of the cathode functional layer in four different cells directly confirms the predicted connection between geometrical properties and the impedance response. As in classical catalysis, the electrocatalytic activity is controlled by an effective Thiele modulus, which is the ratio of the surface diffusion length (mean distance from an adsorption site to the triple phase boundary) to the surface boundary layer length (square root of surface diffusivity div...

Fu, Y; Bertei, A; Qi, C; Mohanram, A; Pietras, J D; Bazant, M Z

2014-01-01T23:59:59.000Z

318

Micro-Scale Heterogeneity in Biogeochemical Uranium Cycling  

SciTech Connect (OSTI)

One method for the in situ remediation of uranium contaminated subsurface environments is the removal of highly soluble U(VI) from groundwater by microbial reduction to the sparingly soluble U(IV) mineral uraninite. Success of this remediation strategy will, in part, be determined by the extent and products of microbial reduction. In heterogeneous subsurface environments, microbial processes will likely yield a combination of U(IV) and U(VI) phases distributed throughout the soil matrix. Here, we use a combination of bulk X-ray absorption spectroscopy (XAS) and micro-focused XAS and X-ray diffraction to determine uranium speciation and distribution with sediment from a pilot-scale uranium remediation project located in Oak Ridge, TN.

Ginder-Vogel, M.; Wu, W.-M.; Kelly, S.; Criddle, C.S.; Carley, J.; Jardine, P.; Kemner, K.M.; Fendorf, S.

2009-06-04T23:59:59.000Z

319

Dynamic capabilities for strategic green advantage: green electricity purchasing in North American firms, SMEs, NGOs and agencies  

Science Journals Connector (OSTI)

North American businesses, social economy organisations and government agencies are tackling the challenges of declining non-renewable energy resources and climate change by voluntarily purchasing green electricity (GE). This study uses a survey of 213 organisations that voluntarily purchase GE to test the influence of green institutional and green resource-based factors on the purchase decision. Components of green institutional theory and the green resource-based view of the firm were found to have only a secondary or indirect influence on the voluntary decision to purchase GE. In contrast, the overwhelming importance attributed by respondents to the role of champions suggests that internal agency should be incorporated into future studies examining voluntary environmental decisions from an organisational perspective. The dynamic capabilities process, defined as the interaction between champions and environmental structures, can generate strategic green advantage if champions use environmental structures to emphasise: 1) environmental benefits; 2) marketing and green image benefits; 3) the GE purchase as a hedge against fossil-fuel price uncertainty.

Travis Gliedt; Paul Parker

2010-01-01T23:59:59.000Z

320

Effects of Tumor Microenvironment Heterogeneity on Nanoparticle Disposition and Efficacy in Breast Cancer Tumor Models  

Science Journals Connector (OSTI)

...microenvironment. The purpose of our study was to evaluate the role of heterogeneity of the...abnormal tumor microenvironment and has proved to selectively target tumor cells and reduce...have been approved and used clinically due to limited impacts on overall survival. Heterogeneity...

Gina Song; David B. Darr; Charlene M. Santos; Mark Ross; Alain Valdivia; Jamie L. Jordan; Bentley R. Midkiff; Stephanie Cohen; Nana Nikolaishvili-Feinberg; C. Ryan Miller; Teresa K. Tarrant; Arlin B. Rogers; Andrew C. Dudley; Charles M. Perou; William C. Zamboni

2014-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Optimization of Wireless Access Point Placement in Realistic Urban Heterogeneous Networks  

E-Print Network [OSTI]

for irregular heterogeneous networks with hierarchical APs such as macro/micro base-stations, picoOptimization of Wireless Access Point Placement in Realistic Urban Heterogeneous Networks Yicheng network under a given user geographic distribution, and proposes an iterative method to optimize

Yu, Wei

322

Power-consumption minimization mechanism for heterogeneous multi-cell cellular network  

E-Print Network [OSTI]

Power-consumption minimization mechanism for heterogeneous multi-cell cellular network Chulhyun, yhchoi } @snu.ac.kr Power-consumption minimization mechanism for heterogeneous multi-cell cellular consumes large amount of energy, reduction of energy consumption in ICT attracts attention of research

323

Service-Oriented Heterogeneous Resource Sharing for Optimizing Service Latency in Mobile Cloud  

E-Print Network [OSTI]

Service-Oriented Heterogeneous Resource Sharing for Optimizing Service Latency in Mobile Cloud for mobile cloud applications and services. In this paper, we propose an architecture and mathematical frame- work for heterogeneous resource sharing based on the key idea of service-oriented utility functions

Mandayam, Narayan

324

Evidence for correlation of electrical resistivity and seismic velocity in heterogeneous near-surface materials  

E-Print Network [OSTI]

-surface materials. For both trends, the resistivity (r) and p-wave velocity (Vp) are related in the form Log10 r = m resistivity and seismic velocity in heterogeneous near-surface materials, Geophys. Res. Lett., 30(7), 1373Evidence for correlation of electrical resistivity and seismic velocity in heterogeneous near

Meju, Max

325

Towards an Integrated BPM Schema: Control Flow Heterogeneity of PNML and BPEL4WS  

E-Print Network [OSTI]

Towards an Integrated BPM Schema: Control Flow Heterogeneity of PNML and BPEL4WS Jan Mendling1 to identify extensions to the schema integration process in order to capture such specifics of BPM schemas. 1 Introduction Heterogeneity of Business Process Modelling (BPM) schemas is a notorious prob- lem for business

Zdun, Uwe

326

Dividing wall columns for heterogeneous azeotropic distillation Quang-Khoa Le1  

E-Print Network [OSTI]

Dividing wall columns for heterogeneous azeotropic distillation Quang-Khoa Le1 , Ivar J. Halvorsen2 of this work is to implement heterogeneous azeotropic distillation schemes in a dividing wall column (DWC distillation, Petlyuk arrangement, energy saving. 1. Introduction Distillation is one of the most energy

Skogestad, Sigurd

327

A novel framework for exploring 3-D FPGAs with heterogeneous interconnect fabric  

Science Journals Connector (OSTI)

A heterogeneous interconnect architecture can be a useful approach for the design of 3-D FPGAs. A methodology to investigate heterogeneous interconnection schemes for 3-D FPGAs under different 3-D fabrication technologies is proposed. Application of ... Keywords: 3-D integration, 3-D reconfigurable architectures, FPGAs, design framework, interconnection fabric

Kostas Siozios; Vasilis F. Pavlidis; Dimitrios Soudris

2012-03-01T23:59:59.000Z

328

ViperVM: a Runtime System for Parallel Functional High-Performance Computing on Heterogeneous Architectures  

E-Print Network [OSTI]

.henry@labri.fr Abstract The current trend in high-performance computing is to use het- erogeneous architectures (i-performance computer design has shifted from high-frequency multi-core architectures to heterogeneous archi- tecturesViperVM: a Runtime System for Parallel Functional High-Performance Computing on Heterogeneous

Paris-Sud XI, Université de

329

Optimal Microcell Deployment for Effective Mobile Device Energy Saving in Heterogeneous Networks  

E-Print Network [OSTI]

1 Optimal Microcell Deployment for Effective Mobile Device Energy Saving in Heterogeneous Networks--Heterogeneous network (HetNet) [1] is considered as an energy efficient system structure to alleviate the problemNet energy efficiency has been conducted. However, most of them only consider power consumption of Base

Boyer, Edmond

330

Plane wave solution for elastic wave scattering by a heterogeneous fracture  

E-Print Network [OSTI]

Plane wave solution for elastic wave scattering by a heterogeneous fracture Seiji Nakagawa,a) Kurt for computing the three-dimensional scattering of propagating elastic waves by a planar fracture with heterogeneous fracture compliance distribution is presented. This method is based upon the spatial Fourier

Santos, Juan

331

Learning Organizational Roles in a Heterogeneous Multi-agent System M. V. Nagendra Prasad1  

E-Print Network [OSTI]

Learning Organizational Roles in a Heterogeneous Multi-agent System M. V. Nagendra Prasad1 , Victor of heterogeneous agents learn their organizational roles in negotiated search for mutually acceptable designs. We Amherst, MA 0l002 lander@bbtech.com Abstract This paper presents studies in learning a form of or

Massachusetts at Amherst, University of

332

Mapping pipeline skeletons onto heterogeneous platforms Anne Benoit and Yves Robert  

E-Print Network [OSTI]

Mapping pipeline skeletons onto heterogeneous platforms Anne Benoit and Yves Robert January 2007 mapping of the application. In this paper, we discuss the mapping of pipeline skeletons onto different, Fully Heterogeneous platforms. We assume that a pipeline stage must be mapped on a single processor

Paris-Sud XI, Université de

333

Spatial and temporal heterogeneity in supercooled glycerol: Evidence from wide field single molecule imaging  

E-Print Network [OSTI]

­19 and single molecule SM experiments20­27 have provided evidence for the existence of heterogeneous dynamicsSpatial and temporal heterogeneity in supercooled glycerol: Evidence from wide field single molecule imaging Stephan A. Mackowiak, Tobias K. Herman,a and Laura J. Kaufmanb Department of Chemistry

Kaufman, Laura

334

Energy-Aware Scheduling Algorithm with Duplication on Heterogeneous Computing Systems  

Science Journals Connector (OSTI)

Efficient application scheduling is critical for achieving high performance in heterogeneous computing (HC) environments. Because of its importance, there are many researches on this problem and various algorithms have been proposed. Duplication-based ... Keywords: energy aware, DAG, static scheduling, duplication-based, heterogeneous

Jing Mei; Kenli Li

2012-09-01T23:59:59.000Z

335

Landscape heterogeneity as an ecological filter of species traits2 Author names and affiliations4  

E-Print Network [OSTI]

1 Title1 Landscape heterogeneity as an ecological filter of species traits2 3 Author names Oecologica 56 (2014) 19-26" DOI : 10.1016/j.actao.2014.01.004 #12;2 Abstract26 Landscape heterogeneity in conservation strategies. However, most landscape ecology studies28 measure gamma diversity of a single habitat

Boyer, Edmond

336

Utilizing interfaces: One-step forward for rational design of heterogeneous catalysts  

SciTech Connect (OSTI)

As far as heterogeneous catalysts are a composite material, physicochemical properties of the interfaces between individual components should be extensively studied for rational design of catalysts with desired properties. Here, I will present recent computational achievements in following three heterogeneous catalysts where the interface between composing materials plays a critical role

Kim H. Y.

2013-06-20T23:59:59.000Z

337

Performance and Reliability of Non-Markovian Heterogeneous Distributed Computing Systems  

E-Print Network [OSTI]

Performance and Reliability of Non-Markovian Heterogeneous Distributed Computing Systems Jorge E-of-service (QoS), and service reliability associated with heterogeneous parallel and distributed computing-Markovian processes, distributed queuing theory, reliability, distributed computing, load balancing. Ã? 1 INTRODUCTION

Hayat, Majeed M.

338

Multiscale heterogeneity characterization of tidal channel, tidal delta and foreshore facies, Almond Formation outcrops, Rock Springs uplift, Wyoming  

SciTech Connect (OSTI)

In order to accurately predict fluid flow within a reservoir, variability in the rock properties at all scales relevant to the specific depositional environment needs to be taken into account. The present work describes rock variability at scales from hundreds of meters (facies level) to millimeters (laminae) based on outcrop studies of the Almond Formation. Tidal channel, tidal delta and foreshore facies were sampled on the eastern flank of the Rock Springs uplift, southeast of Rock Springs, Wyoming. The Almond Fm. was deposited as part of a mesotidal Upper Cretaceous transgressive systems tract within the greater Green River Basin. Bedding style, lithology, lateral extent of beds of bedsets, bed thickness, amount and distribution of depositional clay matrix, bioturbation and grain sorting provide controls on sandstone properties that may vary more than an order of magnitude within and between depositional facies in outcrops of the Almond Formation. These features can be mapped on the scale of an outcrop. The products of diagenesis such as the relative timing of carbonate cement, scale of cemented zones, continuity of cemented zones, selectively leached framework grains, lateral variability of compaction of sedimentary rock fragments, and the resultant pore structure play an equally important, although less predictable role in determining rock property heterogeneity. A knowledge of the spatial distribution of the products of diagenesis such as calcite cement or compaction is critical to modeling variation even within a single facies in the Almond Fin. because diagenesis can enhance or reduce primary (depositional) rock property heterogeneity. Application of outcrop heterogeneity models to the subsurface is greatly hindered by differences in diagenesis between the two settings. The measurements upon which this study is based were performed both on drilled outcrop plugs and on blocks.

Schatzinger, R.A.; Tomutsa, L. [BDM Petroleum Technologies, Bartlesville, OK (United States)

1997-08-01T23:59:59.000Z

339

Numerical simulation of first-order backscattered P and S waves for time-lapse seismic imaging in heterogeneous reservoirs  

Science Journals Connector (OSTI)

......borehole seismic data aimed at monitoring oil-water substitution in heterogeneous...heterogeneous media, particularly of oil-water substitution events in producing...time-lapse seismometry. Mark Stephenson of Marathon Oil UK kindly supplied the well-core......

P. C. Leary

2002-03-01T23:59:59.000Z

340

Heterogeneous Nuclear Ribonucleoprotein K Supports Vesicular Stomatitis Virus Replication by Regulating Cell Survival and Cellular Gene Expression  

Science Journals Connector (OSTI)

...and prompt us to undertake additional research to uncover its involvement in virus-host...arginine dimethylation of heterogeneous nuclear ribonucleoprotein K by protein-arginine...erythroid cell maturation: heterogeneous nuclear ribonucleoprotein K controls the expression...

Phat X. Dinh; Anshuman Das; Rodrigo Franco; Asit K. Pattnaik

2013-07-10T23:59:59.000Z

Note: This page contains sample records for the topic "firm level heterogeneity" 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

Heterogeneous Nuclear Ribonucleoprotein C1/C2 Controls the Metastatic Potential of Glioblastoma by Regulating PDCD4  

Science Journals Connector (OSTI)

...Articles Heterogeneous Nuclear Ribonucleoprotein C1...b Samsung Biomedical Research Institute, Samsung...Korea e Cancer Stem Cell Research Center and Department...with the tumor grade. Programmed cell death 4 (PDCD4...role of heterogeneous nuclear ribonucleoprotein C1...

Young Mi Park; Su Jin Hwang; Kiyoshi Masuda; Kyung-Min Choi; Mi-Ran Jeong; Do-Hyun Nam; Myriam Gorospe; Hyeon Ho Kim

2012-08-20T23:59:59.000Z

342

Approaches to identifying reservoir heterogeneity and reserve growth opportunities from subsurface data: The Oficina Formation, Budare field, Venezuela  

SciTech Connect (OSTI)

We applied an integrated geologic, geophysical, and engineering approach devised to identify heterogeneities in the subsurface that might lead to reserve growth opportunities in our analysis of the Oficina Formation at Budare field, Venezuela. The approach involves 4 key steps: (1) Determine geologic reservoir architecture; (2) Investigate trends in reservoir fluid flow; (3) Integrate fluid flow trends with reservoir architecture; and (4) Estimate original oil-in-place, residual oil saturation, and remaining mobile oil, to identify opportunities for reserve growth. There are three main oil-producing reservoirs in the Oficina Formation that were deposited in a bed-load fluvial system, an incised valley-fill, and a barrier-strandplain system. Reservoir continuity is complex because, in addition to lateral facies variability, the major Oficina depositional systems were internally subdivided by high-frequency stratigraphic surfaces. These surfaces define times of intermittent lacustrine and marine flooding events that punctuated the fluvial and marginal marine sedimentation, respectively. Syn and post depositional faulting further disrupted reservoir continuity. Trends in fluid flow established from initial fluid levels, response to recompletion workovers, and pressure depletion data demonstrated barriers to lateral and vertical fluid flow caused by a combination of reservoir facies pinchout, flooding shale markers, and the faults. Considerable reserve growth potential exists at Budare field because the reservoir units are highly compartment by the depositional heterogeneity and structural complexity. Numerous reserve growth opportunities were identified in attics updip of existing production, in untapped or incompletely drained compartments, and in field extensions.

Hamilton, D.S.; Raeuchle, S.K.; Holtz, M.H. [Bureau of Economic Geology, Austin, TX (United States)] [and others

1997-08-01T23:59:59.000Z

343

ALLIANCE: An architecture for fault tolerant, cooperative control of heterogeneous mobile robots  

SciTech Connect (OSTI)

This research addresses the problem of achieving fault tolerant cooperation within small- to medium-sized teams of heterogeneous mobile robots. The author describes a novel behavior-based, fully distributed architecture, called ALLIANCE, that utilizes adaptive action selection to achieve fault tolerant cooperative control in robot missions involving loosely coupled, largely independent tasks. The robots in this architecture possess a variety of high-level functions that they can perform during a mission, and must at all times select an appropriate action based on the requirements of the mission, the activities of other robots, the current environmental conditions, and their own internal states. Since such cooperative teams often work in dynamic and unpredictable environments, the software architecture allows the team members to respond robustly and reliably to unexpected environmental changes and modifications in the robot team that may occur due to mechanical failure, the learning of new skills, or the addition or removal of robots from the team by human intervention. After presenting ALLIANCE, the author describes in detail experimental results of an implementation of this architecture on a team of physical mobile robots performing a cooperative box pushing demonstration. These experiments illustrate the ability of ALLIANCE to achieve adaptive, fault-tolerant cooperative control amidst dynamic changes in the capabilities of the robot team.

Parker, L.E.

1995-02-01T23:59:59.000Z

344

Programming and Scheduling Model for Supporting Heterogeneous Accelerators in Tobias Beisel and Tobias Wiersema and Christian Plessl and Andr Brinkmann  

E-Print Network [OSTI]

Programming and Scheduling Model for Supporting Heterogeneous Accelerators in Linux Tobias Beisel of such heterogeneous systems is still a subject of research. While many efforts address the programming of accelerators, scheduling heterogeneous systems, i. e., mapping parts of an application to accelerators at runtime, is still

Hellebrand, Sybille

345

Levelized Electricity Costs  

Science Journals Connector (OSTI)

The concept of levelized energy costs responds to the necessity of disclosing the ... in order to recover the total life cycle cost of energy production. This chapter charts the effectiveness of levelized cost fo...

Nuno Luis Madureira

2014-01-01T23:59:59.000Z

346

The Enterprise Level Roadmap  

E-Print Network [OSTI]

The Enterprise Level Roadmap is part of a Transition-To-Lean Guide, a three volume set of materials designed to help a user navigate through the Roadmap at increasingly deeper levels of detail.

Lean Advancement Initiative

2000-01-01T23:59:59.000Z

347

Modeling Supercritical Carbon Dioxide Injection in Heterogeneous Porous Media  

SciTech Connect (OSTI)

We investigate the physical processes that occur during the sequestration of carbon dioxide (CO2) in liquid-saturated, brine-bearing geologic formations using the numerical simulator TOUGH2. CO2 is injected in a supercritical state that has a much lower density and viscosity than the liquid brine it displaces. In situ, the supercritical CO2 forms a gas-like phase, and also partially dissolves in the aqueous phase, creating a multi-phase, multi-component environment that shares many important features with the vadose zone. The flow and transport simulations employ an equation of state package that treats a two-phase (liquid, gas), three-component (water, salt, CO2) system. Chemical reactions between CO2 and rock minerals that could potentially contribute to mineral trapping of CO2 are not included. The geological setting considered is a fluvial/deltaic formation that is strongly heterogeneous, making preferential flow a significant effect, especially when coupled with the strong buoyancy forces acting on the gas-like CO2 plume. Key model development issues include vertical and lateral grid resolution, grid orientation effects, and the choice of characteristic curves.

Doughty, Christine; Pruess, Karsten

2003-04-10T23:59:59.000Z

348

Modeling supercritical CO2 injection in heterogeneous porous media  

SciTech Connect (OSTI)

We investigate the physical processes that occur during the sequestration of CO{sub 2} in brine-bearing geologic formations using TOUGH2. An equation of state package that treats a two-phase (liquid, gas), three-component (water, salt, and CO{sub 2}) system is employed. CO{sub 2} is injected in a supercritical state that has a much lower density and viscosity than the liquid brine it displaces. In situ, the supercritical CO{sub 2} forms a gas-like phase, and also partially dissolves in the aqueous phase. Chemical reactions between CO{sub 2} and rock minerals that could potentially contribute to mineral trapping of CO{sub 2} are not included. The geological setting considered is a fluvial/deltaic formation that is strongly heterogeneous, making preferential flow a significant effect, especially when coupled with the strong buoyancy forces acting on the gas-like CO{sub 2} plume. Key model development concerns include vertical and lateral grid resolution, grid orientation effects, and the choice of characteristic curves.

Doughty, Christine; Pruess, Karsten

2003-04-10T23:59:59.000Z

349

Supporting Dynamic Spectrum Access in Heterogeneous LTE+ Networks  

SciTech Connect (OSTI)

As early as 2014, mobile network operators’ spectral capac- ity is expected to be overwhelmed by the demand brought on by new devices and applications. With Long Term Evo- lution Advanced (LTE+) networks likely as the future one world 4G standard, network operators may need to deploy a Dynamic Spectrum Access (DSA) overlay in Heterogeneous Networks (HetNets) to extend coverage, increase spectrum efficiency, and increase the capacity of these networks. In this paper, we propose three new management frameworks for DSA in an LTE+ HetNet: Spectrum Accountability Client, Cell Spectrum Management, and Domain Spectrum Man- agement. For these spectrum management frameworks, we define protocol interfaces and operational signaling scenar- ios to support cooperative sensing, spectrum lease manage- ment, and alarm scenarios for rule adjustment. We also quan- tify, through integer programs, the benefits of using DSA in an LTE+ HetNet, that can opportunistically reuse vacant TV and GSM spectrum. Using integer programs, we consider a topology using Geographic Information System data from the Blacksburg, VA metro area to assess the realistic benefits of DSA in an LTE+ HetNet.

Luiz A. DaSilva; Ryan E. Irwin; Mike Benonis

2012-08-01T23:59:59.000Z

350

Application of solid ash based catalysts in heterogeneous catalysis  

SciTech Connect (OSTI)

Solid wastes, fly ash, and bottom ash are generated from coal and biomass combustion. Fly ash is mainly composed of various metal oxides and possesses higher thermal stability. Utilization of fly ash for other industrial applications provides a cost-effective and environmentally friendly way of recycling this solid waste, significantly reducing its environmental effects. On the one hand, due to the higher stability of its major component, aluminosilicates, fly ash could be employed as catalyst support by impregnation of other active components for various reactions. On the other hand, other chemical compounds in fly ash such as Fe{sub 2}O{sub 3} could also provide an active component making fly ash a catalyst for some reactions. In this paper, physicochemical properties of fly ash and its applications for heterogeneous catalysis as a catalyst support or catalyst in a variety of catalytic reactions were reviewed. Fly-ash-supported catalysts have shown good catalytic activities for H{sub 2} production, deSOx, deNOx, hydrocarbon oxidation, and hydrocracking, which are comparable to commercially used catalysts. As a catalyst itself, fly ash can also be effective for gas-phase oxidation of volatile organic compounds, aqueous-phase oxidation of organics, solid plastic pyrolysis, and solvent-free organic synthesis. 107 refs., 4 figs., 2 tabs.

Shaobin Wang [Curtin University of Technology, Perth, WA (Australia). Department of Chemical Engineering

2008-10-01T23:59:59.000Z

351

Prediction of Gas Injection Performance for Heterogeneous Reservoirs  

SciTech Connect (OSTI)

This report describes research carried out in the Department of Petroleum Engineering at Stanford University from September 1997 - September 1998 under the second year of a three-year grant from the Department of Energy on the "Prediction of Gas Injection Performance for Heterogeneous Reservoirs." The research effort is an integrated study of the factors affecting gas injection, from the pore scale to the field scale, and involves theoretical analysis, laboratory experiments, and numerical simulation. The original proposal described research in four areas: (1) Pore scale modeling of three phase flow in porous media; (2) Laboratory experiments and analysis of factors influencing gas injection performance at the core scale with an emphasis on the fundamentals of three phase flow; (3) Benchmark simulations of gas injection at the field scale; and (4) Development of streamline-based reservoir simulator. Each state of the research is planned to provide input and insight into the next stage, such that at the end we should have an integrated understanding of the key factors affecting field scale displacements.

Blunt, Martin J.; Orr, Franklin M.

1999-05-17T23:59:59.000Z

352

Challenges and conflicts integrating heterogeneous data warehouses in virtual organisations  

Science Journals Connector (OSTI)

This paper addresses challenges, which appear when heterogeneous data warehouses are integrated. Such a scenario especially shows up in the environment of virtual organisations. The involved companies, of the before named constellation, need to combine their business data to attain 'one single version of truth' for decisions beyond organisational borders. The occurring issues are depicted and analysed from an exemplary and theoretical point of view. Not only weaknesses, but also reasons for those shortcomings are analysed. The introduction throws a glance at growing data volumes and the derived consequences for the business. Afterwards, a working definition of the term 'virtual organisation' is established and the link and interdependence to information technology is offered. In the following sections schema and mapping conflicts are discussed. The eighth section targets the detection of organisational deficits, which are probably a facilitator for those problems. Moreover, path breaking decisions within a data warehouse integration project are visualised, to provide decision makers with some rough reference points. The paper is completed by a view on the human component and an outlook on in-memory computing.

Marcus Preis; Juergen Seitz

2012-01-01T23:59:59.000Z

353

Numerical investigation of the heterogeneous combustion processes of solid fuels  

Science Journals Connector (OSTI)

Abstract Two-phase computational modelling based on the Euler–Euler was developed to investigate the heterogeneous combustion processes of biomass, in the solid carbon phase, inside a newly designed combustion chamber (Model 1). A transient simulation was carried out for a small amount of carbon powder situated in a cup which was located at the centre of the combustion chamber. A heat source was provided to initiate the combustion with the air supplied by three injection nozzles. The results show that the combustion is sustained in the chamber, as evidenced by the flame temperature. An axisymmetric combustion model (Model 2) based on the Euler–Lagrange approach was formulated to model the combustion of pulverized coal. Three cases with three different char oxidation models are presented. The predicted results have good agreement with the available experimental data and showed that the combustion inside the reactor was affected by the particulate size. A number of simulations were carried out to find the best values of parameters suitable for predicting \\{NOx\\} pollutants.

Blaid Alganash; Manosh C. Paul; Ian A. Watson

2015-01-01T23:59:59.000Z

354

Usage of XML technology in electronic health record for effective heterogeneous systems integration in healthcare  

Science Journals Connector (OSTI)

A virtual patient record is an ideal electronic health record (EHR) that is decentralised and contains heterogeneous clinical data. Extensible markup language (XML) is a web standard that has become the major driver towards heterogeneous systems integration for any industry solution. This work focuses on creating an XML schema that operates as an interface between different heterogeneous patient record structures. The XML schema structure is based on standards such as HL7 and DICOM modelled with UML metadata techniques. The technological platform used to test this XML schema is by implementing various healthcare scenarios and XML-based technologies.

C. Sunil Kumar; A. Govardhan; C.V. Guru Rao

2009-01-01T23:59:59.000Z

355

Carbon and energy prices under uncertainty: A theoretical analysis of fuel switching with heterogenous power plants  

Science Journals Connector (OSTI)

Abstract European power producers have a major influence on the EU ETS, given that both their CO2 emissions and their EUA (European Union Allowance) allocations account for more than half of the total volumes of the scheme. Fuel switching is often considered as the main short-term abatement measure under the EU ETS. It consists in substituting combined cycle gas turbines (CCGTs) for hard-coal plants in power generation. Thereby coal plants run for shorter periods, and CO2 emissions are reduced. This paper provides the first theoretical analysis of fuel switching, in a context where power plants involved are not equally efficient. We begin with a preliminary work using illustrative examples and sensitivity analyses, which enables us to observe how differences in the efficiency of power plants impact the cost of fuel switching, and how this is related to the level of switching effort. Based on this, we build a theoretical model taking into account the effect of differences in the efficiency of power plants involved in fuel switching. We also investigate the effect of the timing of fuel switching abatements, within the temporally defined environment of our dynamic model. Results demonstrate that the gas price and uncontrolled CO2 emissions act together on the carbon price. We show that the influence of the gas price on the carbon price depends on the level of uncontrolled CO2 emissions, due to heterogeneity of power plants that are used in the fuel switching process. Furthermore, we show that the time of occurrence of uncontrolled emissions matters so that shocks have a stronger impact when they occur in a period that is closed to the end of the phase.

Vincent Bertrand

2014-01-01T23:59:59.000Z

356

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for low pressure boilers. A boiler tank, from which apor, such as steam, normally exits via a main vent, is provided with a vertical side tube connected to the tank at the desired low liquid level. When the liquid level falls to the level of the side tube vapor escapes therethrough causing heating of a temperature sensitive device located in the side tube, which, for example, may activate a liquid supply means for adding liquid to the boiler tank. High liquid level in the boiler tank blocks entry of vapor into the side tube, allowing the temperature sensitive device to cool, for example, to ambient temperature.

Grasso, Albert P. (Vernon, CT)

1986-01-01T23:59:59.000Z

357

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for low pressure boilers. A boiler tank, from which vapor, such as steam, normally exits via a main vent, is provided with a vertical side tube connected to the tank at the desired low liquid level. When the liquid level falls to the level of the side tube vapor escapes therethrough causing heating of a temperature sensitive device located in the side tube, which, for example, may activate a liquid supply means for adding liquid to the boiler tank. High liquid level in the boiler tank blocks entry of vapor into the side tube, allowing the temperature sensitive device to cool, for example, to ambient temperature.

Grasso, A.P.

1984-02-21T23:59:59.000Z

358

CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA |  

Open Energy Info (EERE)

CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA Details Activities (1) Areas (1) Regions (0) Abstract: Borehole induced structures in image logs of wells from the Coso Geothermal Field (CGF), CA record variation in the azimuth of principal stress. Image logs of these structures from five wells were analyzed to quantify the stress heterogeneity for three geologically distinct locations: two wells within the CGF (one in an actively produced volume), two on the margin of the CGF and outside the production area, and a control well several tens of kilometers south of the CGF. Average directions of

359

Resolving Cancer Heterogeneity by Single Cell Sequencing (7th Annual SFAF Meeting, 2012)  

ScienceCinema (OSTI)

Xun Xu on "Resolving Cancer Heterogeneity by Single Cell Sequencing" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Xu, Xun [BGI

2013-02-11T23:59:59.000Z

360

Microwave-induced thermoacoustic tomography: applications and corrections for the effects of acoustic heterogeneities  

E-Print Network [OSTI]

This research is primarily focused on developing potential applications for microwaveinduced thermoacoustic tomography and correcting for image degradations caused by acoustic heterogeneities. Microwave-induced thermoacoustic tomography was first...

Jin, Xing

2009-05-15T23:59:59.000Z

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


361

Elucidating the organic-OMS interface and its implications for heterogeneous catalysts  

E-Print Network [OSTI]

Organic – ordered mesoporous silica (OMS) hybrid materials have attracted great interest due to their potential applications for gas separations, and heterogeneous catalysis. Amine-functionalized OMS materials are active in a variety of base...

Wang, Qingqing

2012-07-16T23:59:59.000Z

362

A Parameterization of Heterogeneous Land Surfaces for Atmospheric Numerical Models and Its Impact on Regional Meteorology  

Science Journals Connector (OSTI)

Natural land surfaces are usually heterogeneous over the resolvable scales considered in atmospheric numerical models. Therefore, model surface parameterizations that assume surface homogeneity may fail to represent the surface forcing ...

R. Avissar; R. A. Pielke

1989-10-01T23:59:59.000Z

363

High-Resolution Characterization of Reservoir Heterogeneity and Connectivity in Clastic Environments  

E-Print Network [OSTI]

This study developed new concepts and interpretative methods for mapping reservoir heterogeneity and connectivity of a fault controlled Wilcox clastic reservoir in Texas, USA. The application of high-resolution seismic enhancement in this study...

Hull, Thomas Frederick

2011-10-21T23:59:59.000Z

364

Cooperative Multitasking for Heterogeneous Accelerators in the Linux Completely Fair Scheduler  

E-Print Network [OSTI]

Cooperative Multitasking for Heterogeneous Accelerators in the Linux Completely Fair Scheduler to be aware of accelerators, hold different run queues for these components and perform scheduling decisions migration of applications between accelerators. We show that cooperative multitasking is possible

Hellebrand, Sybille

365

Medical Knowledge Morphing: Towards Case-Specific Integration of Heterogeneous Medical Knowledge Resources  

E-Print Network [OSTI]

Medical Knowledge Morphing: Towards Case-Specific Integration of Heterogeneous Medical Knowledge interplay between various medical knowledge modalities--the spectrum of medical knowledge modalities spanning from tacit knowledge to experiential knowledge to explicit knowledge to data-induced knowledge

Abidi, Syed Sibte Raza

366

Generic Library Extension in a Heterogeneous Environment Cosmin Oancea Stephen M. Watt  

E-Print Network [OSTI]

Generic Library Extension in a Heterogeneous Environment Cosmin Oancea Stephen M. Watt Department of Computer Science The University of Western Ontario London Ontario, Canada N6A 5B7 {coancea,watt

Watt, Stephen M.

367

Estimation Based Load Balancing Algorithm for Data-Intensive Heterogeneous Grid Environments  

Science Journals Connector (OSTI)

Grid computing holds the great promise to effectively share geographically distributed heterogeneous resources to solve large-scale complex scientific problems. One of the distinct characteristics of the Grid sys...

Ruchir Shah; Bharadwaj Veeravalli; Manoj Misra

2006-01-01T23:59:59.000Z

368

Spatial Temperature and Concentration Changes Following Heterogeneous Damage To a Model Diesel Oxidation Catalyst.  

E-Print Network [OSTI]

??Infra-Red thermography and spatially-resolved capillary inlet mass spectrometry (SpaciMS) have been used to characterize propylene oxidation along a Pt/Al2O3 monolith-supported catalyst, before and after heterogeneous… (more)

Russell, April Elizabeth

2010-01-01T23:59:59.000Z

369

Transformation of Sorbitol to Biofuels by Heterogeneous Catalysis: Chemical and Industrial  

E-Print Network [OSTI]

Transformation of Sorbitol to Biofuels by Heterogeneous Catalysis: Chemical and Industrial ainsi que des exemples d'applications industrielles. Abstract -- Transformation of Sorbitol to Biofuels and biodiesel production led to first generation biofuels. Nowadays, research is focused on lignocellulosic

Boyer, Edmond

370

Local Estimation of Modeling Error in Multi-Scale Modeling of Heterogeneous Elastic Solids  

E-Print Network [OSTI]

This thesis presents the results of an investigation toward the development of a new methodology of local estimation of modeling error in the analysis of linear elastostatic problems of heterogeneous solids. Due to the ...

Moody, Tristan

2008-03-19T23:59:59.000Z

371

Numerical study of wind energy characteristics over heterogeneous terrain — Central Israel case study  

Science Journals Connector (OSTI)

A numerical mesoscale meteorological model has been applied over the heterogeneous terrain of central Israel in order to study wind energy characteristics of three typical synoptic situations. The supportive n...

Mordecay Segal; Ytzhaq Mahrer; Roger A. Pielke

1982-03-01T23:59:59.000Z

372

Variations in organic aerosol optical and hygroscopic properties upon heterogeneous OH oxidation  

E-Print Network [OSTI]

Measurements of the evolution of organic aerosol extinction cross sections (?[subscript ext]) and subsaturated hygroscopicity upon heterogeneous OH oxidation are reported for two model compounds, squalane (a C30 saturated ...

Cappa, Christopher D.

373

ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS  

E-Print Network [OSTI]

ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS Jeremy Engineering University of Michigan Conditionally accepted at International Journal of Research in Marketing Manufacturing Systems Engineering Research Center, and Ross School of Business. #12;- 1 - ENHANCING MARKETING

Michalek, Jeremy J.

374

Studies of heterogeneity properties of selected high-temperature superconductor surfaces  

Science Journals Connector (OSTI)

Nitrogen adsorption measured at 77 K was used to characterize the surface heterogeneity of high-temperature superconductor surfaces. Properties relating to adsorption and porosity ... microscopy (AFM) for a serie...

P. Staszczuk; D. Sternik; G. W. Ch?dzy?ski…

2006-09-01T23:59:59.000Z

375

Variability of geophysical log data and the signature of crustal heterogeneities at the KTB  

Science Journals Connector (OSTI)

......variations in geophysical borehole data reflect geological...Continental Deep Drilling Program (KTB...heterogeneities. borehole geophysics|crustal...Introduction The large-scale structure...several geo-physical borehole data from the German Continental Deep Drilling Program (KTB......

Sabrina Leonardi; Hans-Joachim Kümpel

1998-12-01T23:59:59.000Z

376

Synchrotron PEEM and ToF-SIMS study of oxidized heterogeneous pentlandite, pyrrhotite and chalcopyrite  

Science Journals Connector (OSTI)

Polished surfaces of a naturally heterogeneous mineral sample containing chalcopyrite, pyrrhotite and pentlandite were studied using photoemission electron microscopy (PEEM) and time-of-flight secondary ion mass spectrometry (ToF-SIMS), before and after exposure to aqueous solution.

Acres, R.G.

2010-07-28T23:59:59.000Z

377

Directing Self-Assembly of Heterogeneous NanoSystems | MIT-Harvard...  

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

Directing Self-Assembly of Heterogeneous NanoSystems December 5, 2013 at 3pm36-428 Alfredo Alexander-Katz Department of Material Science and Engineering, Massachusetts Institute...

378

Intrinsic heterogeneity in the survival and proliferation capacities of naïve CD8? T cells  

E-Print Network [OSTI]

This thesis describes the identification and characterization of a novel 'layer' of intrinsic non-genetic functional heterogeneity within the seemingly homogeneous naive CD8? T cell population in their survival and ...

Mahajan, Vinay Subhash

2009-01-01T23:59:59.000Z

379

Fuzzy adaptive connection admission control for real-time applications in ATM-based heterogeneous networks  

E-Print Network [OSTI]

In this thesis, I propose a fuzzy adaptive connection admission control (CAC) approach for real-time applications in ATM-Based heterogeneous networks (ABHN) where ATM serves as a backbone that connects different LANs by interface devices. This type...

Zhang, Ying-Bi

1997-01-01T23:59:59.000Z

380

Heterogeneous Concurrent Modeling and Design in Java (Volume 1: Introduction to Ptolemy II)  

E-Print Network [OSTI]

: Agilent, Bosch, HSBC, Lockheed-Martin, National Instruments, and Toyota #12;PTOLEMY II HETEROGENEOUS (AFRL), the State of California Micro Program, and the following companies: Agi- lent, Bosch, HSBC

Note: This page contains sample records for the topic "firm level heterogeneity" 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

HYPERSONIC BUCKSHOT: ASTROPHYSICAL JETS AS HETEROGENEOUS COLLIMATED PLASMOIDS  

SciTech Connect (OSTI)

Herbig-Haro jets are commonly thought of as homogeneous beams of plasma traveling at hypersonic velocities. Structure within jet beams is often attributed to periodic or 'pulsed' variations of conditions at the jet source. Simulations based on this scenario result in knots extending across the jet diameter. Observations and recent high energy density laboratory experiments shed new light on structures below this scale and indicate they may be important for understanding the fundamentals of jet dynamics. In this paper, we offer an alternative to 'pulsed' models of protostellar jets. Using direct numerical simulations we explore the possibility that jets are chains of subradial clumps propagating through a moving interclump medium. Our models explore an idealization of this scenario by injecting small (r < r {sub jet}), dense ({rho}>{rho}{sub jet}) spheres embedded in an otherwise smooth interclump jet flow. The spheres are initialized with velocities differing from the jet velocity by {approx}15%. We find that the consequences of shifting from homogeneous to heterogeneous flows are significant as clumps interact with each other and with the interclump medium in a variety of ways. Structures which mimic what is expected from pulsed-jet models can form, as can be previously unseen, 'subradial' behaviors including backward facing bow shocks and off-axis working surfaces. While these small-scale structures have not been seen before in simulation studies, they are found in high-resolution jet observations. We discuss implications of our simulations for the interpretation of protostellar jets with regard to characterization of knots by a 'lifetime' or 'velocity history' approach as well as linking observed structures with central engines which produce the jets.

Yirak, Kristopher; Frank, Adam; Cunningham, Andrew J. [Department of Physics and Astronomy, University of Rochester, Rochester, NY 14620 (United States); Mitran, Sorin [Department of Mathematics, Applied Mathematics Program, University of North Carolina, Chapel Hill, NC 27599 (United States)], E-mail: yirak@pas.rochester.edu

2009-04-20T23:59:59.000Z

382

Hypersonic Buckshot: Astrophysical Jets as Heterogeneous Collimated Plasmoids  

E-Print Network [OSTI]

Herbig-Haro (HH) jets are commonly thought of as homogeneous beams of plasma traveling at hypersonic velocities. Structure within jet beams is often attributed to periodic or ``pulsed'' variations of conditions at the jet source. Simulations based on this scenario result in knots extending across the jet diameter. Observations and recent high energy density laboratory experiments shed new light on structures below this scale and indicate they may be important for understanding the fundamentals of jet dynamics. In this paper we offer an alternative to ``pulsed'' models of protostellar jets. Using direct numerical simulations we explore the possibility that jets are chains of sub-radial clumps propagating through a moving inter-clump medium. Our models explore an idealization of this scenario by injecting small ($r\\rho_{jet}$) spheres embedded in an otherwise smooth inter-clump jet flow. The spheres are initialized with velocities differing from the jet velocity by $\\sim15$%. We find the consequences of shifting from homogeneous to heterogeneous flows are significant as clumps interact with each other and with the inter-clump medium in a variety of ways. Structures which mimic what is expected from pulsed-jet models can form, as can previously unseen ``sub-radial'' behaviors including backward facing bow shocks and off-axis working surfaces. While these small-scale structures have not been seen before in simulation studies, they are found in high resolution jet observations. We discuss implications of our simulations for the interpretation of protostellar jets with regard to characterization of knots by a ``lifetime'' or ``velocity history'' approach as well as linking observed structures with central engines which produce the jets.

Kristopher Yirak; Adam Frank; Andrew J. Cunningham; Sorin Mitran

2008-05-30T23:59:59.000Z

383

Heterogeneous reaction mechanisms and kinetics relevant to the CVD of semiconductor materials  

SciTech Connect (OSTI)

This report documents the state of the art in experimental and theoretical techniques for determining reaction mechanisms and chemical kinetics of heterogeneous reactions relevant to the chemical vapor deposition of semiconductor materials. It summarizes the most common ultra-high vacuum experimental techniques that are used and the types of rate information available from each. Several case studies of specific chemical systems relevant to the microelectronics industry are described. Theoretical methods for calculating heterogeneous reaction rate constants are also summarized.

Creighton, J.R.; Coltrin, M.E.

1994-03-01T23:59:59.000Z

384

Intrinsic reactivity feedback characteristics for safety analysis of heterogeneous and homogeneous LMFBR core designs  

SciTech Connect (OSTI)

This paper presents a comparison of the intrinsic reactivity feedback characteristics of homogeneous and heterogeneous LMFBR designs. The comparisons are shown for a 1000 MWth LMFBR core design. However, the applicability of the conclusions drawn from these comparisons are generic to larger LMFBRs. Consistent sodium void worth distributions have been calculated for heterogeneous and homogeneous 1000 MWth LMFBR core designs. The basic calculations were performed with three dimensional models using ENDF/B-III cross section data and first order perturbation theory.

Doncals, R.A.; Lake, J.A.

1982-01-01T23:59:59.000Z

385

Experimental studies of a large heterogeneous LMFBR benchmark core, ZPPR-13A  

SciTech Connect (OSTI)

The ZPPR-13 program provides basic physics information for testing calculations of radially heterogeneous cores of about 700 MWe size. ZPPR-13 is part of the JUPITER cooperative program between Japan and the US. The results are presented of measurements and analysis for the first assembly, ZPPR-13A. These are the first data for heterogeneous cores of this size available in the US and complement results from ZPPR-9, a conventional LMFBR of similar size.

Brumbach, S.B.; Collins, P.J.; Carpenter, S.G.; Suzuki, S.; Kawashima, M.

1983-05-27T23:59:59.000Z

386

Heterogeneity effect on non-wetting phase trapping in strong water drive gas reservoirs  

Science Journals Connector (OSTI)

Abstract In strong water drive gas reservoirs (WDGR), the presence of entrance water in the gas zone has negative effects on the relative permeability; therefore, gas is trapped behind the water front as a non-wetting phase. Understanding WDGR could be complicated and depends on both the petrophysical and operational parameters, such as, reservoir heterogeneity, permeability, production rate and so on. In order to quantify the uncertainty associated with reservoirs, it is critical to create porous media models that incorporate stratigraphic details. In the present study, experimental models were used to simulate WDGR and describe the heterogeneity effect on residual gas saturation and the recovery factor. In models, distinct gas and water (aquifer portion) zones were designed, wherein the ratio of the permeability of the aquifer to the gas zone was varied over three ranges. All tests were conducted in the presence of connate water, and the main WDGR set-up was constructed for high pressure operational conditions. All porous media were characterized by Dykstra–Parsons coefficient as heterogeneity index. The results demonstrate that the residual gas saturation depends on both heterogeneity index and permeability ratio. Results reveal that heterogeneity is not always detrimental to gas recovery. In addition, when the ratio of the aquifer to gas zone permeability is less than one, the amount of trapped gas reduces as the heterogeneity of the porous media increases and consequently, the recovery factor may be improved.

Mohammad Rezaee; Behzad Rostami; Peyman Pourafshary

2013-01-01T23:59:59.000Z

387

Tiltmeter leveling mechanism  

DOE Patents [OSTI]

A tiltmeter device having a pair of orthogonally disposed tilt sensors that are levelable within an inner housing containing the sensors. An outer housing can be rotated to level at least one of the sensor pair while the inner housing can be rotated to level the other sensor of the pair. The sensors are typically rotated up to about plus or minus 100 degrees. The device is effective for measuring tilts in a wide range of angles of inclination of wells and can be employed to level a platform containing a third sensor.

Hunter, Steven L. (Livermore, CA); Boro, Carl O. (Milpitas, CA); Farris, Alvis (late of Byron, CA)

2002-01-01T23:59:59.000Z

388

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

7 Number of Establishments with Capability to Switch Electricity to Alternative Energy Sources, 2010; " " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

389

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

3 Number of Establishments with Capability to Switch Natural Gas to Alternative Energy Sources, 2002;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

390

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

3 Number of Establishments with Capability to Switch Natural Gas to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

391

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

7 Number of Establishments with Capability to Switch Electricity to Alternative Energy Sources, 2002; " " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" "...

392

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

3 Number of Establishments with Capability to Switch LPG to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" " Unit:...

393

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

0.5 Number of Establishments with Capability to Switch Residual Fuel Oil to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy...

394

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

1 Number of Establishments with Capability to Switch Coal to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy Sources;" " Unit:...

395

" Level: National Data;" " ...  

U.S. Energy Information Administration (EIA) Indexed Site

9 Number of Establishments with Capability to Switch Distillate Fuel Oil to Alternative Energy Sources, 2010;" " Level: National Data;" " Row: NAICS Codes;" " Column: Energy...

396

Theoretical Studies in Heterogenous Catalysis: Towards a Rational Design of Novel Catalysts for Hydrodesulfurization and Hydrogen Production  

SciTech Connect (OSTI)

Traditionally, knowledge in heterogeneous catalysis has come through empirical research. Nowadays, there is a clear interest to change this since millions of dollars in products are generated every year in the chemical and petrochemical industries through catalytic processes. To obtain a fundamental knowledge of the factors that determine the activity of heterogeneous catalysts is a challenge for modern science since many of these systems are very complex in nature. In principle, when a molecule adsorbs on the surface of a heterogeneous catalyst, it can interact with a large number of bonding sites. It is known that the chemical properties of these bonding sites depend strongly on the chemical environment around them. Thus, there can be big variations in chemical reactivity when going from one region to another in the surface of a heterogeneous catalyst. A main objective is to understand how the structural and electronic properties of a surface affect the energetics for adsorption processes and the paths for dissociation and chemical reactions. In recent years, advances in instrumentation and experimental procedures have allowed a large series of detailed works on the surface chemistry of heterogeneous catalysts. In many cases, these experimental studies have shown interesting and unique phenomena. Theory is needed to unravel the basic interactions behind these phenomena and to provide a general framework for the interpretation of experimental results. Ideally, theoretical calculations based on density-functional theory have evolved to the point that one should be able to predict patterns in the activity of catalytic surfaces. As in the case of experimental techniques, no single theoretical approach is able to address the large diversity of phenomena occurring on a catalyst. Catalytic surfaces are usually modeled using either a finite cluster or a two-dimensionally periodic slab. Many articles have been published comparing the results of these two approaches. An important advantage of the cluster approach is that one can use the whole spectrum of quantum-chemical methods developed for small molecules with relatively minor modifications. On the other hand, the numerical effort involved in cluster calculations increases rather quickly with the size of the cluster. This problem does not exist when using slab models. Due to the explicit incorporation of the periodicity of the crystal lattice through the Bloch theorem, the actual dimension of a slab calculation depends only on the size of the unit cell. In practical terms, the slab approach is mainly useful for investigating the behavior of adsorbates at medium and high coverages. Very large unit cells are required at the limit of low to zero coverage, or when examining the properties and chemical behavior of isolated defect sites in a surface. In these cases, from a computational viewpoint, the cluster approach can be much more cost effective than the slab approach. Slab and cluster calculations can be performed at different levels of sophistication: semi-empirical methods, simple ab initio Hartree-Fock, ab initio post-Hartree-Fock (CI, MP2, etc), and density functional theory. Density-functional (DF) based calculations frequently give adsorption geometries with a high degree of accuracy and predict reliable trends for the energetics of adsorption reactions. This article provides a review of recent theoretical studies that deal with the behavior of novel catalysts used for hydrodesulfurization (HDS) reactions and the production of hydrogen (i.e. catalytic processes employed in the generation of clean fuels). These studies involve a strong coupling of theory and experiment. A significant fraction of the review is focused on the importance of size-effects and correlations between the electronic and chemical properties of catalytic materials. The article begins with a discussion of results for the desulfurization of thiophene on metal carbides and phosphides, systems which have the potential to become the next generation of industrial HDS catalysts. Then, systematic studies con

Rodriguez,J.A.; Liu, P.

2008-10-01T23:59:59.000Z

397

Precision liquid level sensor  

DOE Patents [OSTI]

A precision liquid level sensor utilizes a balanced R. F. bridge, each arm including an air dielectric line. Changes in liquid level along one air dielectric line imbalance the bridge and create a voltage which is directly measurable across the bridge.

Field, Michael E. (Albuquerque, NM); Sullivan, William H. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

398

Learning at the boundary of the firm : learning-by-interaction between a manufacturer and its users  

E-Print Network [OSTI]

My dissertation centers on the very nature of the interaction and the learning that happens between users and manufacturers, and explores various micro-level mechanisms, which I call, "learning-by-interaction." The core ...

Bae, Sung Joo

2009-01-01T23:59:59.000Z

399

The Savannah River Site Replacement High Level Radioactive Waste Evaporator Project  

SciTech Connect (OSTI)

The Replacement High Level Waste Evaporator Project was conceived in 1985 to reduce the volume of the high level radioactive waste Process of the high level waste has been accomplished up to this time using Bent Tube type evaporators and therefore, that type evaporator was selected for this project. The Title I Design of the project was 70% completed in late 1990. The Department of Energy at that time hired an independent consulting firm to perform a complete review of the project. The DOE placed a STOP ORDER on purchasing the evaporator in January 1991. Essentially, no construction was to be done on this project until all findings and concerns dealing with the type and design of the evaporator are resolved. This report addresses two aspects of the DOE design review; (1) Comparing the Bent Tube Evaporator with the Forced Circulation Evaporator, (2) The design portion of the DOE Project Review - concentrated on the mechanical design properties of the evaporator. 1 ref.

Presgrove, S.B. (Bechtel Savannah River, Inc., North Augusta, SC (United States))

1992-01-01T23:59:59.000Z

400

The Savannah River Site Replacement High Level Radioactive Waste Evaporator Project  

SciTech Connect (OSTI)

The Replacement High Level Waste Evaporator Project was conceived in 1985 to reduce the volume of the high level radioactive waste Process of the high level waste has been accomplished up to this time using Bent Tube type evaporators and therefore, that type evaporator was selected for this project. The Title I Design of the project was 70% completed in late 1990. The Department of Energy at that time hired an independent consulting firm to perform a complete review of the project. The DOE placed a STOP ORDER on purchasing the evaporator in January 1991. Essentially, no construction was to be done on this project until all findings and concerns dealing with the type and design of the evaporator are resolved. This report addresses two aspects of the DOE design review; (1) Comparing the Bent Tube Evaporator with the Forced Circulation Evaporator, (2) The design portion of the DOE Project Review - concentrated on the mechanical design properties of the evaporator. 1 ref.

Presgrove, S.B. [Bechtel Savannah River, Inc., North Augusta, SC (United States)

1992-08-01T23:59:59.000Z

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


401

The effect of reservoir heterogeneity on gas production from hydrate accumulations in the permafrost  

SciTech Connect (OSTI)

The quantity of hydrocarbon gases trapped in natural hydrate accumulations is enormous, leading to significant interest in the evaluation of their potential as an energy source. Large volumes of gas can be readily produced at high rates for long times from methane hydrate accumulations in the permafrost by means of depressurization-induced dissociation combined with conventional technologies and horizontal or vertical well configurations. Initial studies on the possibility of natural gas production from permafrost hydrates assumed homogeneity in intrinsic reservoir properties and in the initial condition of the hydrate-bearing layers (either due to the coarseness of the model or due to simplifications in the definition of the system). These results showed great promise for gas recovery from Class 1, 2, and 3 systems in the permafrost. This work examines the consequences of inevitable heterogeneity in intrinsic properties, such as in the porosity of the hydrate-bearing formation, or heterogeneity in the initial state of hydrate saturation. Heterogeneous configurations are generated through multiple methods: (1) through defining heterogeneous layers via existing well-log data, (2) through randomized initialization of reservoir properties and initial conditions, and (3) through the use of geostatistical methods to create heterogeneous fields that extrapolate from the limited data available from cores and well-log data. These extrapolations use available information and established geophysical methods to capture a range of deposit properties and hydrate configurations. The results show that some forms of heterogeneity, such as horizontal stratification, can assist in production of hydrate-derived gas. However, more heterogeneous structures can lead to complex physical behavior within the deposit and near the wellbore that may obstruct the flow of fluids to the well, necessitating revised production strategies. The need for fine discretization is crucial in all cases to capture dynamic behavior during production.

Reagan, M. T.; Kowalsky, M B.; Moridis, G. J.; Silpngarmlert, S.

2010-05-01T23:59:59.000Z

402

Anionic co-contaminants and the biogeochemical evolution of aquifer heterogeneity. Final technical report  

SciTech Connect (OSTI)

Adsorption heterogeneity of subsoils may depend on the sorbate and its concentration. Ligands in natural and contaminated subsoils may dissolve substantial metal oxides thereby altering the subsoil heterogeneity. We investigated these hypotheses on sands artificially and naturally coated with various amounts of metal oxides. The adsorbates Cu, oxalate, and mixtures of Cu and oxalate (Cu-Oxalate) were used as probes of the surface. For the concentration range studied, Binding Strength Analysis revealed that the naturally coated samples were heterogeneous at the microscale and the macroscale when oxalate was used as the probe of the surface. Cu revealed a smaller heterogeneity while Cu-Oxalate indicated an intermediate heterogeneity. Various elaborations of homogeneous-site Surface Complexation Models (SCM), calibrated to the surface protonation properties of goethite, modeled accurately the edges of oxalate, Cu, and mixtures of Cu and oxalate. The poorer fits for large concentrations was probably because of the site heterogeneity. The accuracy of SCMs was insensitive to the choice of surface protonation constants (pK{sub a}) and moderately sensitive to the choice of site density. The effective surface complexation constants (K{sup eff}) obtained from individual edges were somewhat different because of the concentration dependent heterogeneity. It was not always possible to use K{sup eff} values for one sorbate concentration to reproduce adsorption of other concentrations of the same sorbate. A modified version of the discrete pK{sub a} spectrum model closely reproduced the acid-base titration curve with two adsorption sites (four pK{sub a}`s). The adsorption of all concentrations of Cu, oxalate, and Cu-Oxalate was often reproduced with only one of those sites. The competition between the dissolved Al and the surface for the oxalate in solution was accurately reproduced with both sites. The dissolution of the oxide coating was often influenced by the pore velocity.

Fish, W.

1997-07-01T23:59:59.000Z

403

Improved freezing level retrieval  

E-Print Network [OSTI]

TRMM Microwave Imager(TMI)-based passive microwave retrieval techniques result in biased estimates of the freezing level and rainfall over the east Pacific in the Inter Tropical Convergence Zone (ITCZ). Passive microwave rainfall estimates...

Hong, Sungwook

2002-01-01T23:59:59.000Z

404

Distinguishing features of flow in heterogeneous porous media: 4, Is a more general dynamic description required  

SciTech Connect (OSTI)

Groundwater theory that applies to only homogeneous systems is often too restricted to adequately solve actual groundwater pollution problems. For adequate solutions, the more general theory for heterogeneous porous systems is needed. However, the present dynamic and kinematic descriptions in heterogeneous materials have evolved largely from the restricted and less general homogeneous theory. These descriptions are inadequate because they fail to account for all the energy dissipation in the system. The basic distinguishing dynamic feature of heterogeneous flow theory from the less general homogeneous-based theory is the macroscopic rotational flow component. Specifically, existence of rotational flow components and their independence from the translational flow components are the necessary and sufficient conditions that completely differentiate between the complex lamellar heterogeneous flow theory and the simpler lamellar flow of homogeneous theory. This paper proposes a more general dynamic form of the flow equation to include the added rotational dissipation that is missing from the present Darcian description of flow in heterogeneous media. 31 refs.

Nelson, R.W.

1990-11-01T23:59:59.000Z

405

Heterogeneity-corrected vs -uncorrected critical structure maximum point doses in breast balloon brachytherapy  

SciTech Connect (OSTI)

Recent studies have reported potentially clinically meaningful dose differences when heterogeneity correction is used in breast balloon brachytherapy. In this study, we report on the relationship between heterogeneity-corrected and -uncorrected doses for 2 commonly used plan evaluation metrics: maximum point dose to skin surface and maximum point dose to ribs. Maximum point doses to skin surface and ribs were calculated using TG-43 and Varian Acuros for 20 patients treated with breast balloon brachytherapy. The results were plotted against each other and fit with a zero-intercept line. Max skin dose (Acuros) = max skin dose (TG-43) ? 0.930 (R{sup 2} = 0.995). The average magnitude of difference from this relationship was 1.1% (max 2.8%). Max rib dose (Acuros) = max rib dose (TG-43) ? 0.955 (R{sup 2} = 0.9995). The average magnitude of difference from this relationship was 0.7% (max 1.6%). Heterogeneity-corrected maximum point doses to the skin surface and ribs were proportional to TG-43-calculated doses. The average deviation from proportionality was 1%. The proportional relationship suggests that a different metric other than maximum point dose may be needed to obtain a clinical advantage from heterogeneity correction. Alternatively, if maximum point dose continues to be used in recommended limits while incorporating heterogeneity correction, institutions without this capability may be able to accurately estimate these doses by use of a scaling factor.

Kim, Leonard, E-mail: kimlh@umdnj.edu [Department of Radiation Oncology, Cancer Institute of New Jersey, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, New Brunswick, NJ (United States); Narra, Venkat; Yue, Ning [Department of Radiation Oncology, Cancer Institute of New Jersey, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, New Brunswick, NJ (United States)

2013-07-01T23:59:59.000Z

406

IMPROVING CO2 EFFICIENCY FOR RECOVERING OIL IN HETEROGENEOUS RESERVOIRS  

SciTech Connect (OSTI)

The third annual report of ''Improving CO{sub 2} Efficiency for Recovery Oil in Heterogeneous Reservoirs'' presents results of laboratory studies with related analytical models for improved oil recovery. All studies were designed to optimize utilization and extend the practice of CO{sub 2} flooding to a wider range of reservoirs. Chapter 1 describes the behavior at low concentrations of the surfactant Chaser International CD1045{trademark} (CD) versus different salinity, pressure and temperature. Results of studies on the effects of pH and polymer (hydrolyzed polyacrylamide?HPAM) and CO{sub 2} foam stability after adsorption in the core are also reported. Calcium lignosulfonate (CLS) transport mechanisms through sandstone, description of the adsorption of CD and CD/CLS onto three porous media (sandstone, limestone and dolomite) and five minerals, and the effect of adsorption on foam stability are also reported. In Chapter 2, the adsorption kinetics of CLS in porous Berea sandstone and non-porous minerals are compared by monitoring adsorption density change with time. Results show that adsorption requires a much longer time for the porous versus non-porous medium. CLS adsorption onto sandstone can be divided into three regions: adsorption controlled by dispersion, adsorption controlled by diffusion and adsorption equilibrium. NaI tracer used to characterize the sandstone had similar trends to earlier results for the CLS desorption process, suggesting a dual porosity model to simulate flow through Berea sandstone. The kinetics and equilibrium test for CD adsorption onto five non-porous minerals and three porous media are reported in Chapter 3. CD adsorption and desorption onto non-porous minerals can be established in less than one hour with adsorption densities ranging from 0.4 to 1.2 mg of CD per g of mineral in decreasing order of montmorillonite, dolomite, kaolinite, silica and calcite. The surfactant adsorption onto three porous media takes much longer than one hour, with Berea sandstone requiring the longest time. In Chapter 4, comparisons of static adsorption of CLS, CD, and CLS/CD mixtures onto five pure minerals showed that the presence of CLS decreased the adsorption of CD onto the five minerals by 20 to 70%. Dynamic CLS/CD mixture adsorption tests onto Berea sandstone and Indian limestone cores showed that competitive adsorption between CD and CLS generally takes several days to reach equilibrium. Foam stability and interfacial tension tests on both injected and effluent samples were performed which showed that both foam stability and IFT decreased due to adsorption. Also it appears that there is a chromatographic effect on the surfactants in flow through porous media. Progress was realized in developing general equations for stress sensitivity on non-Darcy parameters (permeability and non-Darcy coefficient), and the multiphase flow induced by a high flow rate was confirmed as a mechanism for injectivity loss in CO{sub 2} flooding. In Chapter 5, a general equation is defined based on 60 general equations of permeability stress sensitivity and non-Darcy coefficient stress sensitivity and definitions of nominal permeability, nominal non-Darcy coefficient, permeability stress sensitivity, and non-Darcy coefficient stress sensitivity. The equations of stress sensitivity are independent of pressure, temperature, and rock properties and existing empirical correlations of the nominal permeability and nominal non-Darcy coefficient can be used when laboratory data are not available. This provides a tool to quantify the change of permeability and non-Darcy coefficient due to change of effective stress resulted from reservoir injection and/or production.

Reid B. Grigg; Robert K. Svec; Zhengwen Zeng; Baojun Bai; Yi Liu

2004-09-27T23:59:59.000Z

407

HYBRID HETEROGENEOUS CATALYSTS FOR HYDROGENATION OF CARBON DIOXIDE  

SciTech Connect (OSTI)

HYBRID HETEROGENEOUS CATALYSTS FOR HYDROGENATION OF CARBON DIOXIDE Lucia M. Petkovic, Harry W. Rollins, Daniel M. Ginosar, and Kyle C. Burch Idaho National Laboratory P.O. Box 1625 Idaho Falls, ID 83415-2208 Introduction Anthropogenic emissions of carbon dioxide, a gas often associated with global warming, have increased considerably since the beginning of the industrial age.1 In the U.S., stationary CO2 sources, such as electricity generation plants, produce about one-third of the anthropogenic CO2 generation. Reports2 indicate that the power required to recover 90% of the CO2 from an integrated coal-fired power-plant is about 10% of the power-plant capacity. This energy requirement can be reduced to less than 1% if the recovered CO2 is applied to the production of synthetic fuels. However, the lack of efficient catalysts along with the costs of energy and hydrogen has prevented the development of technologies for direct hydrogenation of CO2.3 Although the cost of hydrogen for hydrogenating CO2 is not economically attractive at present, the future production of hydrogen by nuclear power sources could completely change this scenario.2 Still, an efficient catalyst will be essential for commercial application of those processes. The objective of the work presented here was the development of hybrid catalysts for one-step carbon dioxide hydrogenation to liquid fuels. The hybrid catalysts, which were prepared by two novel techniques, included a copper/zinc oxide catalytic function distributed within an acidic zeolitic matrix. Results of catalyst activity and selectivity studies at atmospheric pressure are presented in this contribution. Experimental Catalysts were prepared by two novel techniques and under several different conditions to produce copper/zinc oxide/zeolite materials. Once synthesized, samples were pelletized and the fraction between 40-60 mesh was utilized for the experiments. Two hundred milligrams of catalyst were loaded in a U-tube stainless steel reactor and a flow of 100 cm3/min of a 10:90 H2:Ar mixture was passed through the catalyst bed while the temperature was increased from room temperature to 513 K at 1.8 K/min and held at 513 K for 15 h. A reactant gas mixture composed by 10 cm3/min of CO2 and 30 cm3/min of H2 was then passed through the catalyst bed and the reaction products monitored by on-line gas chromatographic analyses using an SRI Multiple Gas Analyzer #2 equipped with 3 columns (MoleSieve 13X, Hayesep-D, and MXT-1) and 3 detectors (TCD, FID, and FID-methanizer). This GC system allowed for quantification of inert gases, CO, CO2, methanol, dimethylether, higher alcohols, water, and hydrocarbons up to C20. One hundred milligrams of a commercial syngas-to-methanol catalyst along with the same amount of a commercial zeolite catalyst was utilized under the same reaction conditions for comparison purposes. These catalysts were utilized either in two-layers (Com1) or mixed together (Com2). Results and Discussion Under the conditions applied in this study, the main reaction products were CO, CH3OH, CH3OCH3, and H2O. Methanol and dimethylether production rates and selectivities with respect to CO formation are presented in Figures 1 and 2, respectively. Although the activity of the synthesized catalysts did not surpass the commercial catalysts, the selectivity to oxygenates with respect to CO on most of the synthesized catalysts were better than on the commercial catalysts. For example, cat

Licia M. Petkovic; Harry W. Rollins; Daniel M. Ginosar; Kyle C. Burch

2006-09-01T23:59:59.000Z

408

Molecular Beam and Surface Science Studies of Heterogeneous Reaction Kinetics Including Combustion Dynamics. Final Technical Report.  

SciTech Connect (OSTI)

This research program examined the heterogeneous reaction kinetics and reaction dynamics of surface chemical processes which are of direct relevance to efficient energy production, condensed phase reactions, and mateials growth including nanoscience objectives. We have had several notable scientific and technical successes. Illustrative highlights include: (1) a thorough study of how one can efficiently produce synthesis gas (SynGas) at relatively low Rh(111) catalyst temperatures via the reaction CH{sub4}+1/2 O{sub2} {r_arrow} CO+2H{sub2}. In these studies methane activation is accomplished utilizing high-kinetic energy reagents generated via supersonic molecular beams, (2) experiments which have incisively probed the partial oxidation chemistry of adsorbed 1- and 2- butene on Rh and ice, as well as partial oxidation of propene on Au; (3) investigation of structural changes which occur to the reconstructed (23x{radical}3)-Au(111) surface upon exposure to atomic oxygen, (4) a combined experimental and theoretical examination of the fundamental atomic-level rules which govern defect minimization during the formation of self-organizing stepped nanostructures, (5) the use of these relatively defect-free nanotemplates for growing silicon nanowires having atomically-dimensioned widths, (6) a combined scanning probe and atomic beam scattering study of how the presence of self-assembling organic overlayers interact with metallic supports substrates - this work hs led to revision of the currently held view of how such adsorbates reconfigure surface structure at the atomic level, (7) an inelastic He atom scattering study in which we examined the effect of chain length on the low-energy vibrations of alkanethiol striped phase self-assembled monolayers on Au(111), yielding information on the forces that govern interfacial self-assembly, (8) a study of the vibrational properties of disordered films of SF{sub6} adsorbed on Au(111), and (9) a study of the activated chemistry and photochemistry of NO on NiO/Ni. Innovative STM and molecular beam instrumentation has been fabricated to enable this program.

Sibener, S. J.

2006-06-23T23:59:59.000Z

409

Kinetics of the heterogeneous photocatalytic oxidation of isopropanol  

SciTech Connect (OSTI)

Intrinsic kinetics for the ambient temperature photocatalytic oxidation (PCO) of dilute isopropanol (IPA) in humid air over near-ultraviolet (UV) irradiated titanium dioxide have been determined using a continuous microreactor flow system. The IPA disappearance rate exhibits a Langmuir-Hinshelwood-Hougen-Watson (LHHW) type dependence on IPA concentration. The rate is nearly first order in UV irradiance at low UV flux. The rate is independent of relative humidity R{sub H} at low R{sub H} levels, but is enhanced by water vapor concentration at higher levels. This relatively unique behavior is likely a direct consequence of the adsorption strength of alcohols on titania, which in general is considerably higher than the corresponding adsorption strengths for other classes of organic compounds. In addition to carbon dioxide, acetone is generated as a product of IPA destruction. This acetone is itself photocatalytically oxidized to carbon dioxide and water vapor at longer residence time. 10 refs., 3 figs.

Ameen, M.; Kalaga, M.; Annapragada, R.; Raupp, G.B. [Arizona State Univ., Tempe, AZ (United States)

1996-12-31T23:59:59.000Z

410

Biodiesel production from algae by using heterogeneous catalysts: A critical review  

Science Journals Connector (OSTI)

Abstract The numerous challenges associated with declining fossil fuel reserves as energy sources, have accounted for a shift to biofuels as alternatives. However, transesterification of animal fats and edible vegetable oils using homogeneous acids and bases for biodiesel production is recently considered unsustainable by industries, particularly due to food versus fuel competition, and economic and environmental challenges associated with the feedstocks and catalyst systems, respectively. The paper therefore presents a critical review on the prospects of non-edible oil (i.e. algae oil) for biodiesel production via heterogeneous catalysis. It covers the advantages of algae oil exploitation over edible oil feedstocks, progress made in the oil extraction, available heterogeneous catalyst systems and reaction mechanisms, optimum transesterification conditions and the way forward. As the economic feasibility of biodiesel production from algae is supported by the valorization of glycerol as by-product, we have also highlighted key available heterogeneous catalysts to upgrade glycerol into more useful industrial products.

Ahmad Galadima; Oki Muraza

2014-01-01T23:59:59.000Z

411

High level nuclear waste  

SciTech Connect (OSTI)

The DOE Division of Waste Products through a lead office at Savannah River is developing a program to immobilize all US high-level nuclear waste for terminal disposal. DOE high-level wastes include those at the Hanford Plant, the Idaho Chemical Processing Plant, and the Savannah River Plant. Commercial high-level wastes, for which DOE is also developing immobilization technology, include those at the Nuclear Fuel Services Plant and any future commercial fuels reprocessing plants. The first immobilization plant is to be the Defense Waste Processing Facility at Savannah River, scheduled for 1983 project submission to Congress and 1989 operation. Waste forms are still being selected for this plant. Borosilicate glass is currently the reference form, but alternate candidates include concretes, calcines, other glasses, ceramics, and matrix forms.

Crandall, J L

1980-01-01T23:59:59.000Z

412

ENRAF gauge reference level calculations  

SciTech Connect (OSTI)

This document describes the method for calculating reference levels for Enraf Series 854 Level Detectors as installed in the tank farms. The reference level calculation for each installed level gauge is contained herein.

Huber, J.H., Fluor Daniel Hanford

1997-02-06T23:59:59.000Z

413

Ultrasonic liquid level detector  

DOE Patents [OSTI]

An ultrasonic liquid level detector for use within a shielded container, the detector being tubular in shape with a chamber at its lower end into which liquid from in the container may enter and exit, the chamber having an ultrasonic transmitter and receiver in its top wall and a reflector plate or target as its bottom wall whereby when liquid fills the chamber a complete medium is then present through which an ultrasonic wave may be transmitted and reflected from the target thus signaling that the liquid is at chamber level.

Kotz, Dennis M. (North Augusta, SC); Hinz, William R. (Augusta, GA)

2010-09-28T23:59:59.000Z

414

Liquid-level detector  

DOE Patents [OSTI]

Aliquid level sensor is described which has a pair of upright conductors spaced by an insulator defining a first high resistance path between the conductors. An electrically conductive path is interposed between the upright conductors at a discrete location at which liquid level is to be measured. It includes a liquid accessible gap of a dimension such that the electrical resistance across the conductor when the gap is filled with the liquid is detectably less than when the gap is emptied. The conductor might also be physically altered by temperature changes to serve also as an indicator of elevated temperature.

Not Available

1981-01-29T23:59:59.000Z

415

Improved Efficiency of Miscible CO(2) Floods and Enhanced Prospects for CO(2) Flooding Heterogeneous Reservoirs.  

SciTech Connect (OSTI)

The overall goal of this project was to improve the efficiency of miscible C0{sub 2} floods and enhance the prospects for flooding heterogeneous reservoirs. This objective was accomplished through experimental and modeling research in three task areas: (1) foams for selective mobility control in heterogeneous reservoirs,( 2) reduction of the amount of C0{sub 2} required in C0{sub 2} floods, and (3) low IFT processe and the possibility of C0{sub 2} flooding in fractured reservoirs. This report provides results from the three-year project for each of the three task areas.

Grigg, R.B.; Schechter, D.S.

1997-08-01T23:59:59.000Z

416

Continuous-time random-walk model of transport in variably saturated heterogeneous porous media  

Science Journals Connector (OSTI)

We propose a unified physical framework for transport in variably saturated porous media. This approach allows fluid flow and solute migration to be treated as ensemble averages of fluid and solute particles, respectively. We consider the cases of homogeneous and heterogeneous porous materials. Within a fractal mobile-immobile continuous time random-walk framework, the heterogeneity will be characterized by algebraically decaying particle retention times. We derive the corresponding (nonlinear) continuum-limit partial differential equations and we compare their solutions to Monte Carlo simulation results. The proposed methodology is fairly general and can be used to track fluid and solutes particles trajectories for a variety of initial and boundary conditions.

Andrea Zoia; Marie-Christine Néel; Andrea Cortis

2010-03-04T23:59:59.000Z

417

Geographic Information Sciences Vol. 6, No. 1. pp.6-19 2000 Multiscale Analysis of Landscape Heterogeneity  

E-Print Network [OSTI]

Geographic Information Sciences Vol. 6, No. 1. pp.6-19 2000 1 Multiscale Analysis of Landscape 89557, USA Abstract A major goal of landscape ecology is to understand the formation, dynamics, and maintenance of spatial heterogeneity. Spatial heterogeneity is the most fundamental characteristic of all

Wu, Jianguo "Jingle"

418

Characterization of heterogeneous near-surface materials by joint 2D inversion of dc resistivity and seismic data  

E-Print Network [OSTI]

Characterization of heterogeneous near-surface materials by joint 2D inversion of dc resistivity materials by joint 2D inversion of dc resistivity and seismic data, Geophys. Res. Lett., 30(13), 1658, doi electrical resistivity and seismic compressional (P) wave velocity in heterogeneous near-surface materials

Meju, Max

419

Relative importance of organic coatings for the heterogeneous hydrolysis of N2O5 during summer in Europe  

E-Print Network [OSTI]

coatings, formed via gas-to- particle conversion on aqueous aerosols, to N2O5 hydrolysis on localRelative importance of organic coatings for the heterogeneous hydrolysis of N2O5 during summer suppress heterogeneous N2O5 hydrolysis. In this study we investigated the relative importance of organic

Riemer, Nicole

420

The effect of local-scale physical heterogeneity and nonlinear, rate-limited sorption/desorption on  

E-Print Network [OSTI]

The effect of local-scale physical heterogeneity and nonlinear, rate-limited sorption contribution of physical- heterogeneity-related processes versus those of nonlinear, rate-limited sorption-transfer and rate-limited sorption/desorption, respectively, contributed to the nonideal behavior observed

Hu, Qinhong "Max"

Note: This page contains sample records for the topic "firm level heterogeneity" 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

NETWORKS AND HETEROGENEOUS MEDIA Website: http://aimSciences.org c American Institute of Mathematical Sciences  

E-Print Network [OSTI]

NETWORKS AND HETEROGENEOUS MEDIA Website: http://aimSciences.org c American Institute. Only a local micro-phase separation occurs: micro-domains rich in A and B emerge. These micro-monomers appear. This phenomenon is known as micro-phase separation. For a further analysis of the scaling

Niethammer, Barbara

422

MODEL FUSION: A NEW APPROACH TO PROCESSING HETEROGENOUS DATA Department of Computer Science  

E-Print Network [OSTI]

MODEL FUSION: A NEW APPROACH TO PROCESSING HETEROGENOUS DATA OMAR OCHOA Department of Computer. Flores, Ph.D. Dean of the Graduate School #12;cCopyright by Omar Ochoa 2013 #12;MODEL FUSION: A NEW;Abstract In many practical situations, it is necessary to extract information from data of different types

Kreinovich, Vladik

423

Laser pulse control of ultrafast heterogeneous electron transfer: A computational study  

E-Print Network [OSTI]

Laser pulse control of ultrafast heterogeneous electron transfer: A computational study Luxia Wang, Germany Received 31 March 2004; accepted 30 July 2004 Laser pulse control of the photoinduced 90 fs charge in which way the charge injection time can be changed by tailored laser pulses. In a second step a pump

Röder, Beate

424

Cooperation of Heterogeneous, Autonomous Robots: A Case Study of Humanoid and Wheeled Robots  

E-Print Network [OSTI]

a tightly cooperative task, where the humanoid robot and the wheeled robot follow for a long distance a ballCooperation of Heterogeneous, Autonomous Robots: A Case Study of Humanoid and Wheeled Robots Jutta and a wheeled robot with largely complementing and some competing capabilities. By combining two strongly

Stryk, Oskar von

425

Average crack front velocity during subcritical fracture propagation in a heterogeneous medium  

E-Print Network [OSTI]

Average crack front velocity during subcritical fracture propagation in a heterogeneous medium relaxation tests, exploring subcritical to critical regimes. Transparency of the material (PMMA) allows kinetic crack propagation is usually referred to as sub-critical crack growth or sub- critical regime

Paris-Sud XI, Université de

426

Effect of foliage spatial heterogeneity in the MODIS LAI and FPAR algorithm over broadleaf forests  

E-Print Network [OSTI]

Effect of foliage spatial heterogeneity in the MODIS LAI and FPAR algorithm over broadleaf forests spectroradiometer (MODIS) leaf area index (LAI) and fraction of photosynthetically active radiation (FPAR) algorithm Forest, MA, were used for this purpose. The analysis covers three themes. First, the assumption

Myneni, Ranga B.

427

Compile-Time Scheduling Algorithms for a Heterogeneous Network of Workstations  

Science Journals Connector (OSTI)

......1,..., p. A set of zi that minimizes max p i=1 gi zi will also minimize max p i=1 ti, because is constant. We can rede"ne wi to be wi = 1/gi p k=1 1/gk and proceed as in Subsection 6.1. 6.3. Heterogeneous parallel loops In this case......

M. Cierniak; M. J. Zaki; W. Li

1997-01-01T23:59:59.000Z

428

On the critical salt concentrations for particle detachment in homogeneous sand and heterogeneous Hanford sediments  

E-Print Network [OSTI]

Hanford sediments Theresa Blumea,b , Noam Weisbrodc,*, John S. Selkera a Department of Bioengineering) mineralogically heterogeneous sediment, taken from the Hanford formation in southeast Washington. Stepwise the amount of particles released and the CSC were an order of magnitude higher for the Hanford sediment than

Selker, John

429

On the critical salt concentrations for particle detachment in homogeneous sand and heterogeneous Hanford sediments  

E-Print Network [OSTI]

Hanford sediments Abstract One of the mechanisms for sudden particle release is a decrease in groundwater and (b) mineralogically heterogeneous sediment, taken from the Hanford formation in southeast Washington the amount of particles released and the CSC were an order of magnitude higher for the Hanford sediment than

Weisbrod, Noam

430

Computer simulation study of pattern transfer in AB diblock copolymer film adsorbed on a heterogeneous surface  

E-Print Network [OSTI]

Computer simulation study of pattern transfer in AB diblock copolymer film adsorbed propagates through the film onto an adsorbing heterogeneous surface. We bias the copolymer film to adopt a specified target pattern and then use simulation to design a surface pattern that helps the adsorbed film

Jayaraman, Arthi

431

Texture analysis of silicon with an heterogeneous morphology used for the photovoltaic conversion by neutron diffraction  

E-Print Network [OSTI]

603 Texture analysis of silicon with an heterogeneous morphology used for the photovoltaic.10F - 61.14F 1. Introduction. In order to lower the production cost of solar cells, the Research perpendicularly to growth axis, which led to photovoltaic efficiency q ~ 11 % under AM1 conditions, starting

Paris-Sud XI, Université de

432

Variable neighborhood search algorithm for heterogeneous traveling repairmen problem with time windows  

Science Journals Connector (OSTI)

The focus of this paper is generalized traveling repairman problem (TRP), a special case of the well known and well studied traveling salesman problem (TSP). Because of its specific objective function, that minimizes the sum of overall time all clients ... Keywords: Heterogeneous traveling repairmen problem with time windows, Operations planning, Variable neighborhood search

Nenad Bjeli?; Milorad Vidovi?; Draen Popovi?

2013-11-01T23:59:59.000Z

433

Numerical solutions of moment equations for flow in heterogeneous composite aquifers  

E-Print Network [OSTI]

Numerical solutions of moment equations for flow in heterogeneous composite aquifers C. L. Winter on the composite media theory of Winter and Tartakovsky [2000, 2002], which allows one to derive and solve moment a representative composite medium to investigate the robustness of perturbation approximations in porous medium

Tartakovsky, Daniel M.

434

Contributed Paper Effect of Small-Scale Heterogeneity of Prey and  

E-Print Network [OSTI]

on the Sustainability of Bushmeat Hunting NATHALIE VAN VLIET, E. J. MILNER-GULLAND, FRANCOIS BOUSQUET, MEHDI SAQALLI´e, Cameroon Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot plays a key role in the sustainability of hunted populations, the role of small-scale heterogeneity

Paris-Sud XI, Université de

435

Fast Neighbor Discovery with Lightweight Termination Detection in Heterogeneous Cognitive Radio Networks  

E-Print Network [OSTI]

the congestion within the frequency spectrum. A cognitive radio transceiver can operate over a wide range of the spectrum that the CR node can operate on may be allocated to licensed users who are known as primary usersFast Neighbor Discovery with Lightweight Termination Detection in Heterogeneous Cognitive Radio

Mittal, Neeraj

436

Semantic agent system for automatic mobilization of distributed and heterogeneous resources  

Science Journals Connector (OSTI)

Advanced information systems increasingly use diverse domain-specific resources like services, data, knowledge, etc. One of the today's ubiquitous computing challenges is to automate the mobilization of heterogeneous distributed resources and to allocate ... Keywords: collaborative environment, knowledge representation, ontology, resources management, rule-based reasoning, task-based computing

Ebrahim Nageba; Paul Rubel; Jocelyne Fayn

2013-06-01T23:59:59.000Z

437

Heterogeneous PLC-RF networking for LLNs Cdric Chauvenet*,** --Bernard Tourancheau*  

E-Print Network [OSTI]

Heterogeneous PLC-RF networking for LLNs Cédric Chauvenet*,** -- Bernard Tourancheau* * CITI INSA and city automation, our view of the future building networking infrastructure places PLC as the central point. Thanks to the design of converging IPv6 networking layers, we show that merging PLC with existing

Paris-Sud XI, Université de

438

Green Move: a platform for highly configurable, heterogeneous electric vehicle sharing  

E-Print Network [OSTI]

Green Move: a platform for highly configurable, heterogeneous electric vehicle sharing Andrea G the spreading of electric vehicles, in particular for what concerns the high upfront costs of the vehicles benefits. I. INTRODUCTION Electric vehicle sharing has the potential to provide a solution to many

Cugola, Gianpaolo

439

Mobile Robot Localization Based on a Set Approach using Heterogeneous Measurements  

E-Print Network [OSTI]

Mobile Robot Localization Based on a Set Approach using Heterogeneous Measurements Colle, Galerne.jubert}@ibisc.univ-evry.fr Corresponding author Etienne.Colle@ibisc.univ-evry.fr Keywords: Robot mobile localization, Interval analysis the problem of the localization of a robot in in large and cooperative environments using real-time data

Paris-Sud XI, Université de

440

Tightly-Coupled Navigation Assistance in Heterogeneous Multi-Robot Teams  

E-Print Network [OSTI]

Tightly-Coupled Navigation Assistance in Heterogeneous Multi-Robot Teams Lynne E. Parker, Balajee International Conference on Intelligent Robots and Systems (IROS), Sendai, Japan, 2004. Abstract-- This paper robot teams, specifically for the task of navigation assistance. These cooperative behaviors enable

Parker, Lynne E.

Note: This page contains sample records for the topic "firm level heterogeneity" 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

A Methodological Approach For Reservoir Heterogeneity Characterization Using Artificial Neural Networks  

E-Print Network [OSTI]

distribution of rock properties. Characterization of porosity, permeability, oil, gas and water saturation of hydrocarbon bearing rocks is the focus of this technical paper. Calculating formation porosity and waterSPE 28394 A Methodological Approach For Reservoir Heterogeneity Characterization Using Artificial

Mohaghegh, Shahab

442

Cache Size in a Cost Model for Heterogeneous Skeletons Heriot-Watt University, Edinburgh,  

E-Print Network [OSTI]

Cache Size in a Cost Model for Heterogeneous Skeletons K.A. Armih Heriot-Watt University, Edinburgh, Scotland, UK kaa41@hw.ac.uk G.J. Michaelson Heriot-Watt University, Edinburgh, Scotland, UK G.Michaelson@hw.ac.uk P.W. Trinder Heriot-Watt University, Edinburgh, Scotland, UK P.W.Trinder@hw.ac.uk Abstract High

Trinder, Phil

443

Learning with Augmented Features for Heterogeneous Domain Lixin Duan S080003@ntu.edu.sg  

E-Print Network [OSTI]

Learning with Augmented Features for Heterogeneous Domain Adaptation Lixin Duan S080003@ntu.edu.sg Dong Xu DongXu@ntu.edu.sg Ivor W. Tsang IvorTsang@ntu.edu.sg School of Computer Engineering, Nanyang be readily incorporated with our newly proposed augmented feature representations to effectively utilize

Tsang Wai Hung "Ivor"

444

Journal of Membrane Science 239 (2004) 1726 Highly conductive ordered heterogeneous ion-exchange membranes  

E-Print Network [OSTI]

in the matrix required for reasonable ion transport through the membrane is 50­70 wt.% [2Journal of Membrane Science 239 (2004) 17­26 Highly conductive ordered heterogeneous ion-exchange membranes are used in electrodialysis (ED) as ion-selective membranes and in power sources (such as fuel

Freger, Viatcheslav "Slava"

445

Optimal joint utility based load balancing algorithm for heterogeneous wireless networks  

Science Journals Connector (OSTI)

The rapid development of mobile broadband services with continuously increasing traffic volumes has resulted in a number of challenges, including ubiquitous network coverage, high bandwidth, and reliable services for reasonable price, etc. To address ... Keywords: EPS, Heterogeneous network, Joint utility, Load balancing, Optimization

Rong Chai, Huili Zhang, Xiaoyu Dong, Qianbin Chen, Tommy Svensson

2014-08-01T23:59:59.000Z

446

ORIGINAL PAPER Large-scale dynamics of a heterogeneous forest resource  

E-Print Network [OSTI]

, conifer-dominated and broadleaf-conifer mixed stands) and stand structure (here high forest, coppiceORIGINAL PAPER Large-scale dynamics of a heterogeneous forest resource are driven jointly /Published online: 22 March 2012 # INRA / Springer-Verlag France 2012 Abstract & Context Forest resource

Paris-Sud XI, Université de

447

InP-based waveguide photodiodes heterogeneously integrated on silicon-on-  

E-Print Network [OSTI]

InP-based waveguide photodiodes heterogeneously integrated on silicon-on- insulator for photonic@virginia.edu Abstract: High-linearity modified uni-traveling carrier photodiodes on silicon-on-insulator with low AM and have an output third order intercept point of 30 dBm at 20 GHz. Photodiode arrays exceed a saturation

Bowers, John

448

High-Power InP-based Waveguide Photodiodes and Photodiode Arrays Heterogeneously Integrated on SOI  

E-Print Network [OSTI]

High-Power InP-based Waveguide Photodiodes and Photodiode Arrays Heterogeneously Integrated on SOI evanescently-coupled modified uni-traveling carrier photodiodes (MUTC PDs) on silicon-on-insulator (SOI on silicon is a promising approach to realize high-performance photodiodes on a silicon photonics platform

Bowers, John

449

Distributed heterogeneous event processing: enhancing scalability and interoperability of CEP in an industrial context  

Science Journals Connector (OSTI)

Although a significant amount of research has investigated the benefits of distributed CEP in terms of scalability and extensibility, there is an ongoing reluctance in deploying distributed CEP in an industrial context. In this paper we present the DHEP ... Keywords: distributed complex event processing, distributed systems, heterogeneous systems and networks

Björn Schilling; Boris Koldehofe; Udo Pletat; Kurt Rothermel

2010-07-01T23:59:59.000Z

450

PSV-wave propagation in a medium with local heterogeneities: a hybrid formulation and its application  

Science Journals Connector (OSTI)

......dependence of Q on frequency, J. Geophys...heterogeneity, and a frequency-wavenumber filter...of the reflection responses of these models...yield high reflected energy, coherent over...finite differences, frequency-wavenumber filter...equations have twice the storage require- ments......

Helga Emmerich

1992-04-01T23:59:59.000Z

451

Easy, Fast and Energy Efficient Object Detection on Heterogeneous On-Chip Architectures1  

E-Print Network [OSTI]

A Easy, Fast and Energy Efficient Object Detection on Heterogeneous On-Chip Architectures1 Ehsan Totoni, University of Illinois at Urbana-Champaign Mert Dikmen, University of Illinois at Urbana-Champaign Mar´ia Jes´us Garzar´an, University of Illinois at Urbana-Champaign We optimize a visual object

Garzarán, María Jesús

452

Heterogeneous modeling of the uranium in situ recovery: Kinetic versus solubility Jrmy. Nosa,1, 2  

E-Print Network [OSTI]

Heterogeneous modeling of the uranium in situ recovery: Kinetic versus solubility control Jérémy. Nosa,1, 2 , Vincent Lagneaub,1 , Valérie Langlaisc,2 a PhD student, jeremy.nos@areva.com, jeremyTech ­ Centre de Géosciences, 35 rue St. Honoré, 77305 Fontainebleau Cedex, France 2 AREVA NC ­ Business Unit

Boyer, Edmond

453

Using Heterogeneous Networks to Improve Energy Efficiency in Direct Coherence Protocols for Many-Core CMPs  

E-Print Network [OSTI]

Using Heterogeneous Networks to Improve Energy Efficiency in Direct Coherence Protocols for Many, thus avoiding the indirection caused by accessing a separate directory (usually in the home node requests, but at the price of significantly increasing network traffic, and consequently, energy

Fernández Pascual, Ricardo

454

Optimal Power Allocation and Load Distribution for Multiple Heterogeneous Multicore Server  

E-Print Network [OSTI]

Optimal Power Allocation and Load Distribution for Multiple Heterogeneous Multicore Server clouds and data centers, the aggregated performance of the cloud of clouds can be optimized by load of performance and energy efficiency. The present paper aims to develop power and performance constrained load

Stojmenovic, Ivan

455

A. Bianconi (ed.) Symmetry and Heterogeneity in High Temperature Superconductors, 21-53  

E-Print Network [OSTI]

A. Bianconi (ed.) Symmetry and Heterogeneity in High Temperature Superconductors, 21-53 NATO I.2 FESHBACH SHAPE RESONANCES IN MULTIBAND HIGH TC SUPERCONDUCTORS Antonio Bianconi, Matteo Filippi trick that bestows to the system the property to resist to the decoherence attacks of high temperature

456

High-throughput imaging of heterogeneous cell organelles with an X-ray laser  

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

Preprocessed detector images that were used for the paper "High-throughput imaging of heterogeneous cell organelles with an X-ray laser". The CXI file contains the entire recorded data - including both hits and blanks. It also includes down-sampled images and LCLS machine parameters. Additionally, the Cheetah configuration file is attached that was used to create the pre-processed data.

Hantke, Max, F.

457

Energy-Efficient Scheduling for Parallel Applications Running on Heterogeneous Clusters  

E-Print Network [OSTI]

in the nearest future. The new data center capacity projected for 2005 would require approximately 40TWh ($4B (ICPP), Sept. 2007. #12;2 energy by judiciously duplicating communication- intensive tasks. More1 Energy-Efficient Scheduling for Parallel Applications Running on Heterogeneous Clusters Ziliang

Qin, Xiao

458

The broad-band fractal nature of heterogeneity in the upper crust from petrophysical logs  

Science Journals Connector (OSTI)

......1991. Deep borehole log evidence for...heterogeneity and large-scale velocity...Continental Deep-Drilling (KTB) Holes...results, for the borehole data, show broad-band...spectral scaling in borehole logs, Geophys...23, 31193122. large-scale velocity......

Sean S. Dolan; Christopher J. Bean; Bruno Riollet

1998-03-01T23:59:59.000Z

459

OSCAR Parallelizing Compiler and API for Real-time Low Power Heterogeneous Multicores  

E-Print Network [OSTI]

OSCAR Parallelizing Compiler and API for Real-time Low Power Heterogeneous Multicores Akihiro and OSCAR API. OSCAR com- piler and OSCAR API realize coarse grain task parallel processing, data transfer. The compiler using the OSCAR API gives us speedups up to 32x for an optical flow program with 8 general purpose

Kasahara, Hironori

460

STUDY OF CLOUD LIFETIME EFFECTS USING THE SGP HETEROGENEOUS DISTRIBUTED RADAR NETWORK: PRELIMINARY CONSIDERATIONS  

E-Print Network [OSTI]

STUDY OF CLOUD LIFETIME EFFECTS USING THE SGP HETEROGENEOUS DISTRIBUTED RADAR NETWORK: PRELIMINARY-dimensional morphology and life cycle of clouds. Detailing key cloud processes as they transit from the formation stage to precipitation onset and cloud dissipation is critical towards establishing uncertainties in climate models

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


461

Microbiological and Geochemical Heterogeneity in an In Situ Uranium Bioremediation Field Site  

Science Journals Connector (OSTI)

...Heterogeneity in an In Situ Uranium Bioremediation Field...and microbiology of a uranium-contaminated subsurface...oxides were highly depleted, groundwater sulfate...populations to in situ uranium bioremediation. Uranium...serious threat to human health and the natural environment...

Helen A. Vrionis; Robert T. Anderson; Irene Ortiz-Bernad; Kathleen R. O'Neill; Charles T. Resch; Aaron D. Peacock; Richard Dayvault; David C. White; Philip E. Long; Derek R. Lovley

2005-10-01T23:59:59.000Z

462

Chapter 26 - Application of Theranostics to Measure and Treat Cell Heterogeneity in Cancer  

Science Journals Connector (OSTI)

Individualized therapy is a noble anticipation in oncology. It would permit not only to adapt a treatment to an individual’s physiology and characteristics, but also to pinpoint therapeutic features for each neoplasia. The high degree of cell heterogeneity in cancer, with mixtures of cells of different origins and cell populations that evolve toward multiple genomic and epigenomic profiles, makes the precise targeting and treatment of each abnormal cell a priority. The phenotypic nature of heterogeneity in cancer is largely determined by changes in gene transcription requiring the identification of an increasing number of intracellular and even intranuclear markers. Such a requirement brings new challenges for state-of-the-art technology focusing on single-cell analysis and begs for the development of nanotools that can provide the multiplex approach necessary to target cancer locations and reach, detect, and appropriately treat subgroups of cells. In this chapter we introduce the reader to the origins of cell heterogeneity in cancer and discuss how this emerging knowledge has shed light on the difficulties encountered in the management of neoplasias over the past few decades. Our analysis illustrates how nanotheranostics might help effectively address the issue of cell heterogeneity to halt cancer progression, overcome resistance to treatment, and possibly decrease cancer risks among individuals.

Sophie A. Lelièvre; Kurt B. Hodges; Pierre-Alexandre Vidi

2014-01-01T23:59:59.000Z

463

Efficient heterogeneous execution on large multicore and accelerator platforms: Case study using a block tridiagonal solver  

Science Journals Connector (OSTI)

The algorithmic and implementation principles are explored in gainfully exploiting GPU accelerators in conjunction with multicore processors on high-end systems with large numbers of compute nodes, and evaluated in an implementation of a scalable block ... Keywords: Accelerator, GPU, Heterogeneous execution, Linear algebra, Memory management, Tridiagonal solver

Alfred J. Park; Kalyan S. Perumalla

2013-12-01T23:59:59.000Z

464

Quantifying Road User Costs with Heterogeneous Value of Motorists' Travel Time  

E-Print Network [OSTI]

to which these factors affect value of time. The major objective of this research is to develop and validate a model that predicts value of time heterogeneously. The data were collected to cover 20 major cities in California. The state of California...

Tiwari, Shashank

2013-08-01T23:59:59.000Z

465

Absorption Spectra Related to Heterogeneous Electron Transfer Reactions: The Perylene TiO2 System  

E-Print Network [OSTI]

Absorption Spectra Related to Heterogeneous Electron Transfer Reactions: The Perylene TiO2 System Form: March 16, 2005 Linear absorption spectra of dye-semiconductor systems (perylene attached displaying line broadenings follow the qualitative trend obtained from transient absorption spectra. I

Röder, Beate

466

Absorption and scattering images of heterogeneous scattering media can be simultaneously reconstructed  

E-Print Network [OSTI]

Absorption and scattering images of heterogeneous scattering media can be simultaneously designed phantom experimental study aimed to provide solid evidence that both absorption and scattering the important absorption­scattering cross-talk issue. In this regard, we develop a simple normalizing scheme

Khan, Taufiquar R.

467

Sorption of strontium and fractal scaling of the heterogeneous media in a candidate VLLW disposal site  

E-Print Network [OSTI]

Sorption of strontium and fractal scaling of the heterogeneous media in a candidate VLLW disposal cm. Therefore, it is challenging to directly measure the sorption capacity of the media of the particle mass content with different grade size and the sorption capacity, which is important

Hu, Qinhong "Max"

468

WAVA: a new web service for automatic video data flow adaptation in heterogeneous collaborative environments  

Science Journals Connector (OSTI)

The progressive needs of video streaming for different applications in varied domains have created a new set of heterogeneous environments especially in Virtual Collaborative Environments. In order to get the best performance of such environments, video ... Keywords: adaptation, asynchronous, collaborative environments, multimedia, real-time, streaming, synchronous, terminal, video, web service

J.-B. Aupet; R. Kassab; J.-C. Lapayre

2009-09-01T23:59:59.000Z

469

A Heterogeneous Population Code for Elapsed Time in Rat Medial Agranular Cortex  

E-Print Network [OSTI]

A Heterogeneous Population Code for Elapsed Time in Rat Medial Agranular Cortex Matthew S. Matell of behavior are largely unknown. Here we recorded from medial agranular cortex neurons in rats while in estimating the time of food availability, robust responding typically bracketed the expected duration

Matell, Matthew S.

470

The H-Cube Project: Hydrodynamics, Heterogeneity and Homogenization in CO2 storage modeling  

E-Print Network [OSTI]

. Audigane, BRGM, E. Mouche, CEA, S. Viseur, CEREGE, D. Guérillot, TERRA 3E And the H-CUBE team Key words-scaling processes We propose to assess the buoyant forces on the CO2 and brine vertical migration of heterogeneity field distribution on the same 3D static earth model appropriate ranking measures of the static

Paris-Sud XI, Université de

471

LuaAV: Extensibility and Heterogeneity for Audiovisual Graham WAKEFIELD and Wesley SMITH and Charles ROBERTS  

E-Print Network [OSTI]

LuaAV: Extensibility and Heterogeneity for Audiovisual Computing Graham WAKEFIELD and Wesley SMITH and Charles ROBERTS Media Arts and Technology, University of California Santa Barbara Santa Barbara, CA 93110 providing the flexibility and temporal accuracy demanded by interactive audio-visual media. Code generation

California at Santa Barbara, University of

472

Solving Energy-Latency Dilemma: Task Allocation for Parallel Applications in Heterogeneous Embedded Systems  

E-Print Network [OSTI]

Solving Energy-Latency Dilemma: Task Allocation for Parallel Applications in Heterogeneous Embedded Systems 1. Introduction Parallel applications with energy and low-latency constraints are emerging monitoring. However, conventional energy-driven task allocation schemes for a cluster of embedded nodes only

Xie, Tao

473

Distributed Simulation Environment for Heterogeneous Computer Clusters Vadim Engelson, Peter Fritzson  

E-Print Network [OSTI]

Distributed Simulation Environment for Heterogeneous Computer Clusters Vadim Engelson, Peter Fritzson Dept. of Computer Science, Linköpings Universitet, S-58183, Linköping, Sweden, Tel.: +46 13 281979, Fax: +46 13 284499, vaden@ida.liu.se, petfr@ida.liu.se, http://www.ida.liu.se/~modelica 1. ABSTRACT

Zhao, Yuxiao

474

A one-dimensional model of vertical gas plume migration through a heterogeneous porous medium  

E-Print Network [OSTI]

A one-dimensional model of vertical gas plume migration through a heterogeneous porous medium and consequent global warming. Ideally, the injected greenhouse gas stays in the injection zone for a geologic or inadvertently created conduits in the cap rock may result in a gas leakage from primary storage. Even

Patzek, Tadeusz W.

475

NUMERICAL MODELING OF DEFORMATION AND FRACTURE OF WOOD INCLUDING HETEROGENEITY AND ANISOTROPY  

E-Print Network [OSTI]

NUMERICAL MODELING OF DEFORMATION AND FRACTURE OF WOOD INCLUDING HETEROGENEITY AND ANISOTROPY John A. Nairn Wood Science & Engineering, Oregon State University, USA Abstract The challenge in numerical modeling of wood is to have the model closely match the structure of a real specimen. The model

Nairn, John A.

476

Accurate Subgrid Models for Two-Phase Flow in Heterogeneous Reservoirs  

E-Print Network [OSTI]

have a strong influence on flow and transport in oil reservoirs. In this work, a new modelAccurate Subgrid Models for Two-Phase Flow in Heterogeneous Reservoirs Yalchin R. Efendiev, SPE for the representation of subgrid terms is introduced and applied to two-phase reservoir flows. The model entails

Efendiev, Yalchin

477

TRANSACTIONS ON PARALLEL AND DISTRIBUTED COMPUTING 1 Reliability of Heterogeneous Distributed  

E-Print Network [OSTI]

TRANSACTIONS ON PARALLEL AND DISTRIBUTED COMPUTING 1 Reliability of Heterogeneous Distributed, Senior Member, IEEE Abstract--While the reliability of distributed-computing systems (DCSs) has been group 1 INTRODUCTION TRADITIONALLY, the problem of modeling and ana- lyzing reliability in distributed

Hayat, Majeed M.

478

UNIVERSITY OF CHICAGO TOPOLOGY AND HETEROGENEITY AT THE RATE-LIMITING STEP  

E-Print Network [OSTI]

UNIVERSITY OF CHICAGO TOPOLOGY AND HETEROGENEITY AT THE RATE-LIMITING STEP OF THE PROTEIN FOLDING .......................................................................... 2 1.3 Physical processes in protein folding...................................................... 5 of the rate-limiting step in protein folding ...................... 11 1.4.1 Two-state mechanisms and TS

Sosnick, Tobin R.

479

Synthesis of Co oxide doped carbon aerogel catalyst and catalytic performance in heterogeneous oxidation of phenol in water  

Science Journals Connector (OSTI)

Co oxide doped carbon aerogel (Co/CA) was prepared, characterised by several techniques, and tested for heterogeneous oxidation of phenol in aqueous solution using oxone as an oxidant. For a comparison, homogeneous oxidation of phenol in Co2+/oxone was also investigated. It was found that homogeneous oxidation of phenol using Co2+/oxone was more effective than Co2+/H2O2 and homogeneous oxidation was faster than heterogeneous Co/CA–oxone. Heterogeneous oxidation of phenol in Co/CA–oxone system followed first order kinetics and the activation energy of the heterogeneous system was estimated to be 62.9 kJ/mol. Several factors influencing phenol degradation in the heterogeneous oxidation were studied. Co/CA loading played a more important role in phenol degradation than oxone concentration, and the presence of other organics in solution resulted in a lower phenol oxidation.

Yasnessya Hardjono; Hongqi Sun; Huyong Tian; C.E. Buckley; Shaobin Wang

2011-01-01T23:59:59.000Z

480

1. Solid Flame, Merzhanov A. and Mukasyan A., Torus Press, Nauka, Moscow 2007, 280. 2. Combustion of Heterogeneous Systems: Fundamentals and Applications for Material  

E-Print Network [OSTI]

. Combustion of Heterogeneous Systems: Fundamentals and Applications for Material Synthesis, ed. Mukasyan A. "Combustion Synthesis of Advanced Materials", in ASM Handbook: Powder Metal Technologies and Applications of Heterogeneous Systems: Fundamentals and Applications for Material Synthesis, Research Signpost Publisher, 2007

Mukasyan, Alexander

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


481

Application of X-ray CT for investigating fluid flow and conformance control during CO2 injection in highly heterogeneous media  

E-Print Network [OSTI]

were performed using homogeneous and heterogeneous cores and a 4th generation X-Ray CT scanner was used to visualize heterogeneity and fluid flow in the core. Porosity and saturation measurements were made during the course of the experiment...

Chakravarthy, Deepak

2005-08-29T23:59:59.000Z

482

Heterogeneous Nuclear Ribonucleoprotein A2 Participates in the Replication of Japanese Encephalitis Virus through an Interaction with Viral Proteins and RNA  

Science Journals Connector (OSTI)

...1 November 2011 research-article Virus-Cell...Interactions Heterogeneous Nuclear Ribonucleoprotein...Molecular Virology, Research Institute for Microbial...Virology 2 Global COE Program, Research Institute for Microbial...identified heterogeneous nuclear ribonucleoprotein...

Hiroshi Katoh; Yoshio Mori; Hiroto Kambara; Takayuki Abe; Takasuke Fukuhara; Eiji Morita; Kohji Moriishi; Wataru Kamitani; Yoshiharu Matsuura

2011-08-24T23:59:59.000Z

483

Pinning down energy levels | EMSL  

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

Pinning down energy levels Pinning down energy levels Scientists discover the energy differences behind green fluorescent protein's glow The research begins with (a) the model GFP...

484

Programming at the Processor-Memory-Switch Level M.R. Barbacci1y2, C.B. Weinstockl, and J.M. Wing2  

E-Print Network [OSTI]

Programming at the Processor-Memory-Switch Level M.R. Barbacci1y2, C.B. Weinstockl, and J.M. Wing2 for this new style of program- ming, and in this paper we describe their status. 1. Programming Heterogeneous

Wing, Jeannette M.

485

Company Level Imports  

U.S. Energy Information Administration (EIA) Indexed Site

All Petroleum & Other Liquids Reports All Petroleum & Other Liquids Reports Company Level Imports With Data for September 2013 | Release Date: November 27, 2013 | Next Release Date: December 30, 2013 | XLS Previous Issues Month: September 2013 August 2013 July 2013 June 2013 May 2013 April 2013 March 2013 February 2013 January 2013 prior issues Go September 2013 Import Highlights Monthly data on the origins of crude oil imports in September 2013 has been released and it shows that two countries exported more than 1 million barrels per day to the United States (see table below). The top five exporting countries accounted for 75 percent of United States crude oil imports in September while the top ten sources accounted for approximately 92 percent of all U.S. crude oil imports. The top five sources of US crude

486

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for conductive liquids for vertical installation in a tank, the detector having a probe positioned within a sheath and insulated therefrom by a seal so that the tip of the probe extends proximate to but not below the lower end of the sheath, the lower end terminating in a rim that is provided with notches, said lower end being tapered, the taper and notches preventing debris collection and bubble formation, said lower end when contacting liquid as it rises will form an airtight cavity defined by the liquid, the interior sheath wall, and the seal, the compression of air in the cavity preventing liquid from further entry into the sheath and contact with the seal. As a result, the liquid cannot deposit a film to form an electrical bridge across the seal.

Tshishiku, Eugene M. (Augusta, GA)

2011-08-09T23:59:59.000Z

487

Rawls' Fairness, Income Distribution and Alarming Level of Gini Coefficient  

E-Print Network [OSTI]

The argument that the alarming level of Gini coefficient is 0.4 is very popular, especially in the media industry, all around the world for a long time. Although the 0.4 standard is widely accepted, the derivation of the value lacks rigid theoretical foundations. In fact, to the best of our knowledge, it is not based on any prevalent and convincing economic theories. In this paper, we incorporate Rawls' principle of fair equality of opportunity into Arrow-Debreu's framework of general equilibrium theory with heterogeneous agents, and derive the alarming level of Gini coefficient formally. Our theory reveals that the exponential distribution of income not only satisfies Pareto optimality, but also obeys social fairness in Rawls' sense. Therefore, we specify the maximal value of the Gini coefficient when income follows exponential distribution as a possible alarming level. Our computations show that the alarming level should be specified at least equal or larger than 0.5 rather than 0.4. We empirically investig...

Tao, Yong; Li, Changshuai

2014-01-01T23:59:59.000Z

488

A Combined Electrochemical and Ultra-High Vacuum Approach to Heterogeneous  

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

A Combined Electrochemical and Ultra-High Vacuum Approach to Heterogeneous A Combined Electrochemical and Ultra-High Vacuum Approach to Heterogeneous Electrocatalysis Friday, February 24, 2012 - 11:00am SSRL Bldg. 137-322, 3rd floor Conference Room Matthew A. Rigsby, Oak Ridge National Laboratory Improved energy conversion and storage technologies are crucial for meeting the growing energy demands of the world. Understanding the factors that are currently limiting the advancement of these technologies is vital. One must examine the fundamental properties of electrocatalyst/photoelectrocatalyst materials and the fluid-solid interfaces of which they are a part, and one of the simplest ways to do this is to study model electrocatalyst systems. In the work presented here, studies began with real nanoparticle fuel cell electrocatalysts that demonstrated the key relationship between reactivity

489

Heterogeneous nucleation of ice on anthropogenic organic particles collected in Mexico City  

SciTech Connect (OSTI)

This study reports on heterogeneous ice nucleation activity of predominantly organic (or coated with organic material) anthropogenic particles sampled within and around the polluted environment of Mexico City. The onset of heterogeneous ice nucleation was observed as a function of particle temperature (Tp), relative humidity (RH), nucleation mode, and particle chemical composition which is influenced by photochemical atmospheric aging. Particle analyses included computer controlled scanning electron microscopy with energy dispersive analysis of X-rays (CCSEM/EDX) and scanning transmission X-ray microscopy with near edge X-ray absorption fine structure spectroscopy (STXM/NEXAFS). In contrast to most laboratory studies employing proxies of organic aerosol, we show that anthropogenic organic particles collected in Mexico City can potentially induce ice nucleation at experimental conditions relevant to cirrus formation. The results suggest a new precedent for the potential impact of organic particles on ice cloud formation and climate.

Knopf, D.A.; Wang, B.; Laskin, A.; Moffet, R.C.; Gilles, M.K.

2010-06-20T23:59:59.000Z

490

Long-term desorption behavior of uranium and neptunium in heterogeneous volcanic tuff materials /  

SciTech Connect (OSTI)

Uranium and neptunium desorption were studied in long-term laboratory experiments using four well-characterized volcanic tuff cores collected from southeast of Yucca Mountain, Nevada. The objectives of the experiments were to 1. Demonstrate a methodology aimed at characterizing distributions of sorption parameters (attributes of multiple sorption sites) that can be applied to moderately-sorbing species in heterogeneous systems to provide more realistic reactive transport parameters and a more realistic approach to modeling transport in heterogeneous systems. 2. Focus on uranium and neptunium because of their high solubility, relatively weak sorption, and high contributions to predicted dose in Yucca Mountain performance assessments. Also, uranium is a contaminant of concern at many DOE legacy sites and uranium mining sites.

Dean, Cynthia A.

2010-05-01T23:59:59.000Z

491

Homogeneous-heterogeneous core evaluation and structural-material selection. [LMFBR  

SciTech Connect (OSTI)

The safe and economic operation of an LMFBR is dependent on many diverse and in some cases conflicting design considerations. In particular, the judicious choice of a reactor core design can play a significant role in meeting safety and economic constraints. The main interest of this study is to compare the relative merits of two core concepts, homogeneous and heterogeneous, with respect to their neutronic performance.

Orechwa, Y.; Su, S.F.

1982-01-01T23:59:59.000Z

492

Measurements and analysis of control rod worths in large heterogeneous LMFBR cores  

SciTech Connect (OSTI)

The ZPPR-13 program provides basic physics data for heterogeneous LMFBR cores of 700 MW(e) size. A number of internal blanket variations were studied and measurements of control rod worths were made in each configuration. The cores are sensitive to asymmetric perturbations and have strong interaction effects between control rods. Calculations with ENDF/B-IV data are within about 5% of experimental values but show systematic variations in accuracy of prediction with location in the core.

Collins, P.J.; Brumbach, S.B.; Carpenter, S.G.

1984-01-01T23:59:59.000Z

493

Heterogeneous mixtures of elliptical particles: Directly resolving local and global properties and responses  

Science Journals Connector (OSTI)

In our earlier papers, Prosperetti's seminal Physalis method for fluid flows was extended to directly resolve electric fields in finite-sized particles and to investigate accurately the mutual fluid-particle, particle-particle, and particle-boundary ... Keywords: Directly resolving particles, Discontinuous interface condition, Elliptical particles, Elongated rod-like particle, Force and torque on particles, Heterogeneous functional materials, Interactions, Local charge distribution, Orientation and anisotropy, Singularity in elliptic coordinates

Qianlong Liu; Kenneth L. Reifsnider

2013-02-01T23:59:59.000Z

494

Two-dimensional heterogeneous model for a reticulated-foam photocatalytic reactor  

SciTech Connect (OSTI)

A 2-D heterogeneous convection reaction model for a gas-solid lamp-in-tube annular photocatalytic reactor is presented. The catalyst (TiO{sub 2}) is supported on a reticulated-foam monolithic structure placed in the annular space between the UV lamp and the reactor wall. Mass balances for individual species are coupled through the reaction-rate expression that appears in the boundary condition at the fluid-solid interface in heterogeneous catalytic reactor models. The heterogeneous reaction rate is modeled using semiempirical Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetics with adsorption constants for various species. The local volumetric rate of energy absorption (LVREA) term in the rate expression was computed using a 3-D polychromatic radiation-field model. The overall system of nonlinear partial differential equations was solved using a combination of the Crank-Nicolson method and the globally convergent Newton-Raphson method. The apparent, average quantum yield in the LHHW kinetic rate form is the single adjustable parameter in the model. Isopropanol (IPA) was chosen as the test contaminant to conduct experimental performance measurements for model validation. Model-predicted radial and axial profiles for bulk and surface concentration reveal that the extent to which mass transport influences the operation of a photocatalytic reactor is determined largely by the local magnitude of the LVREA. Similitude in the scale-up of an annular lamp-in-tube heterogeneous photocatalytic reactor is achieved only when the dimensionless radial radiation profile, as well as corresponding magnitudes of a geometric number, the Peclet number, the Stanton number, and the photocatalytic analog of the Damkoehler number, are identical.

Changrani, R.G.; Raupp, G.B.

2000-04-01T23:59:59.000Z

495

Heterogeneous catalytic wet peroxide oxidation of phenol over delaminated Fe–Ti-PILC employing microwave irradiation  

Science Journals Connector (OSTI)

Delaminated Fe-exchanged Ti-pillared interlayered montmorillonite (Fe–Ti-PILC) was prepared and its catalytic performance as heterogeneous catalyst in wet hydrogen peroxide oxidation of phenol employing microwave irradiation was firstly evaluated. The obtained results indicated that the application of the catalyst allows a comparatively high removal of COD and a total elimination of phenol under mild conditions, without obvious leaching of iron species. The introduction of microwave irradiation could greatly shorten the reaction time.

Jian Guo Mei; Shao Ming Yu; Jun Cheng

2004-01-01T23:59:59.000Z

496

THE JOURNAL OF CHEMICAL PHYSICS 139, 121918 (2013) Combinatoric analysis of heterogeneous stochastic self-assembly  

E-Print Network [OSTI]

stochastic self-assembly Maria R. D'Orsogna,1,2 Bingyu Zhao,3 Bijan Berenji,1,2 and Tom Chou2,4 1 Department of heterogeneous nucleation and self-assembly in a closed sys- tem with a fixed total particle number M. INTRODUCTION The self-assembly of molecules and macroscopic parti- cles into larger units is a common process

Levine, Alex J.

497

Interrelated fundamental solutions for various heterogeneous potential, wave and advective-diffusive problems  

Science Journals Connector (OSTI)

The Green's fundamental solutions for several second order elliptic partial differential equations governing various physical processes are found to be interrelated. These solutions are required for boundary integral equation formulations. Thus a solution for one such process is essentially a solution for several others. This is particularly useful for heterogeneous media where the catalog of existing fundamental solutions is meager. After a discussion of these relationships, a new class of two dimensional fundamental solutions involving axisymmetric material variations is given.

Richard Paul Shaw; G. Steven Gipson

1995-01-01T23:59:59.000Z

498

Characterization and analysis methods for the examination of the heterogeneous solid oxide fuel cell electrode microstructure: Part 2. Quantitative measurement of the microstructure and contributions to transport losses  

SciTech Connect (OSTI)

Advanced characterization and analysis of multifunctional materials, such as the materials found in heterogeneous solid oxide fuel cell (SOFC) electrode architectures, can help to provide a qualitative and quantitative understanding of how these structures respond to different manufacturing and operating practices. Dense, opaque materials, which have large X-ray mass absorption coefficients and features on sub-micrometer length scales, can make characterization difficult. Advances in tomographic X-ray imaging can permit this level of detailed characterization, and complement stereographic scanning electron microscope measurements that have also been reported. In this second part of a two-part study, details regarding quantitative characterization methods that have been used to examine the SOFC anode microstructure are reported. The detailed formulation and validation of a phase size distributions for the three constitutive phases, as well as resistive loss microstructure-induced resistive loss distributions in the nickel (Ni) and yttria-stabilized zirconia (YSZ) phases are provided in this section.

Grew, Kyle N.; Peracchio, Aldo A.; Chiu, W. K. S.

2010-01-01T23:59:59.000Z

499

DEFLECTION OF A HETEROGENEOUS WIDE-BEAM UNDER UNIFORM PRESSURE LOAD  

SciTech Connect (OSTI)

Oregon State University (OSU) and the Idaho National Laboratory (INL) are currently collaborating on a test program which entails hydro-mechanical testing of a generic plate type fuel element, or generic test plate assembly (GTPA), for the purpose of qualitatively demonstrating mechanical integrity of uranium-molybdenum monolithic plates as compared to that of uranium aluminum dispersion, and aluminum fuel plates onset by hydraulic forces. This test program supports ongoing work conducted for/by the Global Threat Reduction Initiative (GTRI) Fuels Development Program. This study’s focus supports the ongoing collaborative effort by detailing the derivation of an analytic solution for deflection of a heterogeneous plate under a uniform, distributed load in order to predict the deflection of test plates in the GTPA. The resulting analytical solutions for three specific boundary condition sets are then presented against several test cases of a homogeneous plate. In all test cases considered, the results for both homogeneous and heterogeneous plates are numerically identical to one another, demonstrating correct derivation of the heterogeneous solution. Two additional problems are presents herein that provide a representative deflection profile for the plates under consideration within the GTPA. Furthermore, qualitative observations are made about the influence of a more-rigid internal fuel-meat region and its influence on the overall deflection profile of a plate. Present work is being directed to experimentally confirm the analytical solution’s results using select materials.

T. V. Holschuh; T. K. Howard; W. R. Marcum

2014-07-01T23:59:59.000Z

500

Quantitative analysis of basin-scale heterogeneities using sonic-log data in the Yanchang Basin  

Science Journals Connector (OSTI)

A random medium is used to investigate reservoir heterogeneities in this study. Random media are characterized by autocorrelation functions that allow a construction of spatially anisotropic random structures with different correlation lengths and fluctuation standard deviations. Based on the analysis, we calculate a power spectrum using fast Fourier transform (FFT), which is observed in spatial wavelengths ranging from a few metres to a few thousand metres. Correlation distance and root mean square (RMS) height are directly obtained from the power spectrum. Numerical experiments show that the correlation length and fluctuation standard deviation can cause correlation distance and RMS height undergoing variations. Combining the characteristics of statistical parameters and sonic-log data, we quantitatively analyse the reservoir heterogeneities in the Yanchang Basin. The correlation distance and RMS height of coarse lithofacies in fluvial sandstones interpret a high-energy deposit and strong heterogeneity, affected by different lithological combinations. The correlation lengths decrease gradually from shales, tight sands to gas-bearing sands. Using the sonic-log data from 28 wells in the Yanchang Basin, we compute the isolines of correlation distances and RMS heights for both the He-8 and Shan-1 members in the studied area, which present a correlation with the distribution of gas. This offers an improved foundation for reservoir lateral prediction.

He-Zhen Wu; Li-Yun Fu; Hong-Kui Ge

2010-01-01T23:59:59.000Z