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


1

COMMODITY PRICE VOLATILITY ACROSS EXCHANGE RATE REGIMES  

E-Print Network [OSTI]

1 COMMODITY PRICE VOLATILITY ACROSS EXCHANGE RATE REGIMES John T. Cuddington* and Hong Liang** March 10, 2003 ABSTRACT This paper documents a new "stylized fact" regarding the relative price 1880 to 1996, this key relative price among two categories of tradable goods is shown to exhibit

2

Quantile Forecasting of Commodity Futures' Returns: Are Implied Volatility Factors Informative?  

E-Print Network [OSTI]

This study develops a multi-period log-return quantile forecasting procedure to evaluate the performance of eleven nearby commodity futures contracts (NCFC) using a sample of 897 daily price observations and at-the-money (ATM) put and call implied...

Dorta, Miguel

2012-07-16T23:59:59.000Z

3

PROHIBITED COMMODITIES  

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

PROHIBITED PROHIBITED COMMODITIES NOT acceptable for transport The following commodities are NOT acceptable for transport by DHL - UNDER ANY CIRCUMSTANCES, including domestic (USA) moves. * Live Animals, Reptiles, Snakes, Birds, Insects (other than those listed below for domestic transit under restricted commodities) * Bullion * Currency * Firearms (Parts†thereof†including†paintball, pellet†guns, air†rifles, etc.) [Except for Domestic exceptions listed below under restricted commodities] * Pornography * Drugs / Narcotics (illegal) * Human remains (including ashes) * Counterfeit or Pirated goods or material Any item(s), the carriage of which is prohibited by any law, regulation or statute of any federal, state or local government to or through which the shipment may be carried.

4

What Is Price Volatility  

Gasoline and Diesel Fuel Update (EIA)

What Is Price Volatility? What Is Price Volatility? The term "price volatility" is used to describe price fluctuations of a commodity. Volatility is measured by the day-to-day percentage difference in the price of the commodity. The degree of variation, not the level of prices, defines a volatile market. Since price is a function of supply and demand, it follows that volatility is a result of the underlying supply and demand characteristics of the market. Therefore, high levels of volatility reflect extraordinary characteristics of supply and/or demand. Prices of basic energy (natural gas, electricity, heating oil) are generally more volatile than prices of other commodities. One reason that energy prices are so volatile is that many consumers are extremely limited in their ability to substitute other fuels when the price, of natural gas

5

The dynamics of commodity spot and futures markets  

E-Print Network [OSTI]

I discuss the short-run dynamics of commodity prices, production, and inventories, as well as the sources and effects of market volatility. I explain how prices, rates of production, and inventory levels are interrelated, ...

Pindyck, Robert S.

2001-01-01T23:59:59.000Z

6

Dynamic spillovers among major energy and cereal commodity prices  

Science Journals Connector (OSTI)

Abstract Over the past decade, the sharp increases in the prices of oil and agricultural commodities have raised serious concerns about the heightened volatility of these markets and the possible negative interactions between them. This article deals with the dynamic return and volatility spillovers across international energy and cereal commodity markets. It also examines the impacts of three types of OPEC news announcements on the volatility spillovers and persistence in these markets. For this purpose, we make use of the VAR-BEKK-GARCH and VAR-DCC-GARCH models for the daily spot prices of eight major commodities including WTI oil, Europe Brent oil, gasoline, heating oil, barley, corn, sorghum, and wheat. Our results provide evidence of significant linkages between these energy and cereal markets. Moreover, the OPEC news announcements are found to exert influence on the oil markets as well as on the oilcereal relationships. Finally, we show that the persistence of volatility decreases (increases) for the crude oil and heating oil (gasoline) returns after accounting for the OPEC announcements in these multivariate GARCH models. However, the results are more mixed for the cereal markets. Overall, our results can be used to improve the risk-adjusted performance by having more diversified portfolios and also serve to hedge the oil risk more effectively.

Walid Mensi; Shawkat Hammoudeh; Duc Khuong Nguyen; Seong-Min Yoon

2014-01-01T23:59:59.000Z

7

Jumps and stochastic volatility in crude oil futures prices using conditional moments of integrated volatility  

Science Journals Connector (OSTI)

Abstract We evaluate alternative models of the volatility of commodity futures prices based on high-frequency intraday data from the crude oil futures markets for the October 2001December 2012 period. These models are implemented with a simple GMM estimator that matches sample moments of the realized volatility to the corresponding population moments of the integrated volatility. Models incorporating both stochastic volatility and jumps in the returns series are compared on the basis of the overall fit of the data over the full sample period and subsamples. We also find that jumps in the returns series add to the accuracy of volatility forecasts.

Christopher F. Baum; Paola Zerilli

2014-01-01T23:59:59.000Z

8

Front cover  

Gasoline and Diesel Fuel Update (EIA)

INVESTMENT IN COMMODITIES MARKETS: INVESTMENT IN COMMODITIES MARKETS: POTENTIAL IMPACT ON COMMODITY PRICES & VOLATILITY IIF Commodities Task Force Submission to the G20 September 2011 IIF Commodities Task Force Submission to the G20 Financial Investment in Commodity Markets: Potential Impact on Commodity Prices & Volatility 1 Preface Amidst increasing concerns about global growth prospects and financial market volatility, commodity prices con- tinue to be a focus for policymakers. The French G-20 presidency has made this topic a priority, emphasizing the potential role of financial investment in driving trends in commodity markets. With commodity prices closely linked to inflation trends, particularly in low-income countries where food security is a vital issue, the search for policy tools

9

Hedging mean-reverting commodities  

Science Journals Connector (OSTI)

......commodity price risk is not the only...firms. If the investment has an international...exchange rate risk and political risk are also...1997) Valuing political risk. J. Int. Money...S. (1994) Investment under Uncertainty......

Udo Broll; Ephraim Clark; Elmar Lukas

2010-01-01T23:59:59.000Z

10

EA-164-B Constellation Energy Commodities Group, Inc | Department...  

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

B Constellation Energy Commodities Group, Inc EA-164-B Constellation Energy Commodities Group, Inc Order authorizing Constellation Energy Commodities Group, Inc to export electric...

11

EA-164-C Constellation Energy Commodities Group, Inc | Department...  

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

64-C Constellation Energy Commodities Group, Inc EA-164-C Constellation Energy Commodities Group, Inc Order authorizing Constellation Energy Commodities Group, Inc to export...

12

Commodity Flow Survey | Data.gov  

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

Commodity Flow Survey Commodity Flow Survey BusinessUSA Data/Tools Apps Challenges Let's Talk BusinessUSA You are here Data.gov » Communities » BusinessUSA » Data Commodity Flow Survey Dataset Summary Description The Commodity Flow Survey provides information on commodities shipped, their value, weight, and mode of transportation, as well as the origin and destination of shipments of commodities from manufacturing, mining, wholesale, and selected retail and services establishments. It is undertaken through a partnership between the Bureau of the Census, U.S. Department of Commerce, and the Bureau of Transportation Statistics, Research and Innovative Technology Administration. Tags {cfc,commodity,flow," federal",state,local,transportation,facilities,services,energy,safety,environment,Mining,Manufacturing,Wholesale,trade,Retail,Services,auxiliary,establishments,warehouses,industries,export,shipment,distance,tons,weight,hazardous,miles,ton-miles,destination,industry,hazard,ship,intrastate,interstate,"UN number",packaging,"TIH number",u.s.,metropolitan}

13

Supplement: Commodity Index Report | Data.gov  

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

Supplement: Commodity Index Report Supplement: Commodity Index Report Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Supplement: Commodity Index Report Dataset Summary Description Shows index traders in selected agricultural markets. These traders are drawn from the noncommercial and commercial categories. The noncommercial category includes positions of managed funds, pension funds, and other investors that are generally seeking exposure to a broad index of commodity prices as an asset class in an unleveraged and passively-managed manner. The commercial category includes positions for entities whose trading predominantly reflects hedging of over-the-counter transactions involving commodity indices, for example, a swap dealer holding long futures positions to hedge a short commodity index exposure opposite institutional traders, such as pension funds.

14

THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION  

E-Print Network [OSTI]

This draft: April 9, 2013 Abstract The price of crude oil in the U.S. never exceeded $40 per barrel until mid price changes? We clarify the effects of speculators on commodity prices. We focus on crude oil, but our approach can be applied to other commodities. We explain the meaning of "oil price speculation," how it can

Rothman, Daniel

15

Production in the Digital Era: Commodity or Strategic Weapon?  

E-Print Network [OSTI]

Commodity or Strategic Weapon? John Zysman BRIE Workingproduction is a strategic weapon and when a commodity. Forproduction into a strategic weapon liking production to the

Zysman, John

2002-01-01T23:59:59.000Z

16

Feedstock Supply and Logistics: Biomass as a Commodity | Department...  

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

Feedstock Supply and Logistics: Biomass as a Commodity Feedstock Supply and Logistics: Biomass as a Commodity The growing U.S. bioindustry is poised to convert domestic biomass...

17

Accelerating semantic graph databases on commodity clusters  

SciTech Connect (OSTI)

We are developing a full software system for accelerating semantic graph databases on commodity cluster that scales to hundreds of nodes while maintaining constant query throughput. Our framework comprises a SPARQL to C++ compiler, a library of parallel graph methods and a custom multithreaded runtime layer, which provides a Partitioned Global Address Space (PGAS) programming model with fork/join parallelism and automatic load balancing over a commodity clusters. We present preliminary results for the compiler and for the runtime.

Morari, Alessandro; Castellana, Vito G.; Haglin, David J.; Feo, John T.; Weaver, Jesse R.; Tumeo, Antonino; Villa, Oreste

2013-10-06T23:59:59.000Z

18

Chemical classification of iron meteoritesIX. A new group (IIF), revision of IAB and IIICD, and data on 57 additional irons  

Science Journals Connector (OSTI)

Structural observations and concentrations of Ni, Ga, Ge and Ir allow the classification of 57 iron meteorites in addition to those described in the previous papers in this series; the number of classified independent iron meteorites is now 535. INAA for an additional six elements indicates that five previously studied irons having very high GeGa ratios are compositionally closely related and can be gathered together as group IIF. A previously unstudied iron, Dehesa, has the highest GeGa ratio known in an iron meteorite, a ratio 18 higher than that in CI chondrites. Although such high GeGa ratios are found in the metal grains of oxidized unequilibrated chondrites, their preservation during core formation requires disequilibrium melting or significant compositional and temperature effects on metal/silicate distribution constants and/or activity coefficients. In terms of GeGa ratios and various other properties group IIF shows genetic links to the Eagle Station pallasites and COCV chondrites. Klamath Falls is a new high-Ni, low-Ir member of group IIIF that extends the concentration ranges in this group and makes these comparable to the ranges in large igneous groups such as IIIAB. Groups IAB and IIICD have been revised to extend the lower Ni boundary of group IIICD down to 62 mg/g. The iron having by far the highest known Ni concentration (585 mg/g), Oktibbeha County, is a member of group IAB and extends the concentration ranges of all elements in this nonmagmatic group. Morasko, a IAB iron associated with a crater field in Poland, is paired with the Seelsgen iron discovered 100 km away. All explosion craters from which meteorites have been recovered were produced by IAB and IIIAB irons.

Alfred Kracher; John Willis; John T Wasson

1980-01-01T23:59:59.000Z

19

Can oil prices help estimate commodity futures prices? The cases of copper and silver  

Science Journals Connector (OSTI)

There is an extensive literature on modeling the stochastic process of commodity futures. It has been shown that models with several risk factors are able to adequately fit both the level and the volatility structure of observed transactions with reasonable low errors. One of the characteristics of commodity futures markets is the relatively short term maturity of their contracts, typically ranging for only a few years. This poses a problem for valuing long term investments that require extrapolating the observed term structure. There has been little work on how to effectively do this extrapolation and in measuring its errors. Cortazar et al. (2008b) propose a multicommodity model that jointly estimates two commodities, one with much longer maturity futures contracts than the other, showing that futures prices of one commodity may be useful information for estimating the stochastic process of another. They implement the procedure using highly correlated commodities like WTI and Brent. In this paper we analyze using prices of long term oil futures contracts to help estimate long term copper and silver future prices. We start by analyzing the performance of the Cortazar et al. (2008b) multicommodity model, now applied to oil-copper and oil-silver which have much lower correlation than the WTIBrent contracts. We show that for these commodities with lower correlation the multicommodity model seems not to be effective. We then propose a modified multicommodity model with a much simpler structure which is easier to estimate and that uses the non-stationary long term process of oil to help estimate long term copper and silver futures prices, achieving a much better fit than using available individual or multicommodity models.

Gonzalo Cortazar; Francisco Eterovic

2010-01-01T23:59:59.000Z

20

Food price volatility  

Science Journals Connector (OSTI)

...of commodity price changes in energy and metals as well as for foods...commodities, in particular corn, sugar and vegetable oils...smaller in food markets than in energy and metals markets, reflecting...insignificant fall grains (%) maize (corn) 19.3 19.4 19.2 1.02...

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Derivative Usage and Performance Volatility  

Science Journals Connector (OSTI)

Derivative usage that reduces return volatility is frequently termed hedging, and derivative usage that increases return volatility is called speculation. ... reduce or increase their return volatility with deriv...

Weiying Jia; Yi Kang

2012-01-01T23:59:59.000Z

22

Feedstock Supply and Logistics:Biomass as a Commodity | Department...  

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

Feedstock Supply and Logistics:Biomass as a Commodity Feedstock Supply and Logistics:Biomass as a Commodity The growing U.S. bioindustry is poised to convert domestic biomass...

23

Inventories and the short-run dynamics of commodity prices  

E-Print Network [OSTI]

I examine the behavior of inventories and their role in the short-run dynamics of commodity production and price. Competitive producers of a storable commodity react to price changes by balancing costs of changing production ...

Pindyck, Robert S.

1990-01-01T23:59:59.000Z

24

Carbon-dioxide emissions trading and hierarchical structure in worldwide finance and commodities markets  

Science Journals Connector (OSTI)

In a highly interdependent economic world, the nature of relationships between financial entities is becoming an increasingly important area of study. Recently, many studies have shown the usefulness of minimal spanning trees (MST) in extracting interactions between financial entities. Here, we propose a modified MST network whose metric distance is defined in terms of cross-correlation coefficient absolute values, enabling the connections between anticorrelated entities to manifest properly. We investigate 69 daily time series, comprising three types of financial assets: 28 stock market indicators, 21 currency futures, and 20 commodity futures. We show that though the resulting MST network evolves over time, the financial assets of similar type tend to have connections which are stable over time. In addition, we find a characteristic time lag between the volatility time series of the stock market indicators and those of the EU CO2 emission allowance (EUA) and crude oil futures (WTI). This time lag is given by the peak of the cross-correlation function of the volatility time series EUA (or WTI) with that of the stock market indicators, and is markedly different (>20 days) from 0, showing that the volatility of stock market indicators today can predict the volatility of EU emissions allowances and of crude oil in the near future.

Zeyu Zheng, Kazuko Yamasaki, Joel N. Tenenbaum, and H. Eugene Stanley

2013-01-29T23:59:59.000Z

25

Microsoft Word - Information_Commodity5  

Gasoline and Diesel Fuel Update (EIA)

Futures Prices Futures Prices  Conghui Hu † and Wei Xiong ‡ May 2013 Abstract This paper analyzes information flow between commodity futures prices traded in the United States and stock prices of East Asian economies including China, Japan, Hong Kong, South Korea, and Taiwan. We find significantly positive stock price reactions across all these stock markets and across a broad range of industries to the lagged overnight futures returns of copper and soybeans, albeit not crude oil, after mid-2000s. Our findings highlight significant information flow from daily futures returns of copper and soybeans to Asian stock markets and establish the futures prices of these commodities as barometers of global economic strength.  This paper is prepared for Après le Déluge: Finance and the Common Good after the Crisis, edited by E.

26

Slide 1  

Gasoline and Diesel Fuel Update (EIA)

Hung Q. Tran Hung Q. Tran EIA Workshop on Financial and Physical Oil Market Linkages Washington D.C. September 27, 2012 The Role of Financial Investment in Commodity Markets In early 2011, the IIF was asked by the French G-20 Chair to bring together senior market practitioners to add their perspectives to the debate on the potential role of financial investment in driving trends in commodity markets. The IIF Commodities Task Force, including market professionals, academics and other researchers, was convened in February 2011, and a CTF Workshop was held in Paris in July 2011. The Task Force submitted its report to the G-20 in September 2011. Financial Investment in Commodity Markets: Potential Impact on Commodity Prices and Volatility A review of the academic literature and studies by official sector

27

EA-359-A Castleton Commodities Merchant Trading L.P.  

Broader source: Energy.gov [DOE]

Order authorizing Castleton Commodities Merchant Trading to export electric energy to Canada. Name Change from Louis Dreyfus Energy Services L.P.

28

NNSA, Sultanate of Oman Conduct WMD Terrorism-Related Commodities...  

National Nuclear Security Administration (NNSA)

Sultanate of Oman Conduct WMD Terrorism-Related Commodities Workshop and Counterterrorism Tabletop Exercise | National Nuclear Security Administration Facebook Twitter Youtube...

29

Methanol's transformation to commodity status stretches supply  

SciTech Connect (OSTI)

Methanol is undergoing a renaissance. Beginning in the US in the fourth quarter of 1993, methanol has seen a transformation from a low-growth, low-priced, overly abundant commodity chemical into a high-demand, undersupplied, cost-price driven product. As the economic recovery has spread to the rest of the world, methanol demand has dramatically increased. this meteoric rise has been further sparked in the US by increased use of methanol as an ingredient in gasoline oxygenates required by the federal government. Increased demand has led to the consolidation of producers, a scramble to reopen existing capacity, addition of capacity via product conversion, and plans for various future capacity expansions. Methanol fits alongside the other long-standing, major organic commodity chemicals-ethylbenzene, ethylene, ethylene dichloride, formaldehyde, propylene, styrene, terephthalic acid, and vinyl chloride. Methanol also serves both as a building block for many other chemicals--formaldehyde, acetic acid, and terephthalic acid--and as a solvent for many industrial uses.

Peaff, G.

1994-10-24T23:59:59.000Z

30

Disco: Running Commodity Operating Systems on Scalable Multiprocessors  

E-Print Network [OSTI]

Disco: Running Commodity Operating Systems on Scalable Multiprocessors EDOUARD BUGNION, SCOTT of extending modern operating systems to run efficiently on large-scale shared-memory multiprocessors without monitors. We use virtual machines to run multiple commodity operating systems on a scalable multiproces

Bridges, Patrick

31

Oil Price Volatility  

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

Speculation and Oil Price Volatility Speculation and Oil Price Volatility Robert J. Weiner Robert J. Weiner Professor of International Business, Public Policy & Professor of International Business, Public Policy & Public Administration, and International Affairs Public Administration, and International Affairs George Washington University; George Washington University; Membre Associ Membre Associ é é , GREEN, Universit , GREEN, Universit é é Laval Laval EIA Annual Conference Washington Washington 7 April 2009 7 April 2009 1 FACTORS DRIVNG OIL PRICE VOLATILITY FACTORS DRIVNG OIL PRICE VOLATILITY ► ► Market fundamentals Market fundamentals . . Fluctuations in supply, Fluctuations in supply, demand, and market power demand, and market power Some fundamentals related to expectations of Some fundamentals related to expectations of

32

CACI: The Cesium-137 Agricultural Commodities Irradiator  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the [sup 137]Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. This Volume, VI, provides the CACI final design features regarding shielding, mechanical and electrical.

Not Available

1986-12-19T23:59:59.000Z

33

CACI: The Cesium-137 Agricultural Commodities Irradiator  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the [sup 137]Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This Volume V, describes plans, criteria, and requirements.

Not Available

1986-12-19T23:59:59.000Z

34

CACI: The Cesium-137 Agricultural Commodities Irradiator  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the [sup 137]Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. This Volume, IV, provides specifications as developed for the CACI final design.

Not Available

1986-12-01T23:59:59.000Z

35

CACI: The Cesium-137 Agricultural Commodities Irradiator  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This volume, Volume VII, describes Safety Analysis, Thermal Analysis, and Thermal Testing.

Not Available

1986-12-19T23:59:59.000Z

36

CACI: The Cesium-137 Agricultural Commodities Irradiator  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This volume Volume III, describes the Shielding Window.

Not Available

1986-12-19T23:59:59.000Z

37

THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION Christopher  

Gasoline and Diesel Fuel Update (EIA)

THE THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION Christopher R. Knittel and Robert S. Pindyck Massachusetts Institute of Technology July 2013 Knittel and Pindyck (MIT) PRICE SPECULATION July 2013 1 / 32 Introduction "Commodities have become an investment class: declines in their prices may simply reflect the whims of speculators." The Economist, June 23, 2012. "Federal legislation should bar pure oil speculators entirely from commodity exchanges in the United States." Joseph Kennedy II, N.Y. Times, April, 10, 2012. Sharp increases in oil prices: $40 per barrel in 2004 to $70 in 2006 to $140 in July 2008. Fell to $38 in early 2009, then increased to $110 in 2011. Are "speculators" to blame? Should futures trading be limited? Confusion over commodity price speculation and how it works. We try to clarify the potential and actual effects of speculators

38

Defense Energy Support Center: Installation Energy Commodity Business Unit  

Broader source: Energy.gov [DOE]

Presentationgiven at the Spring 2009 Federal Utility Partnership Working Group (FUPWG) meetingdiscusses the Defense Energy Support Center's (DESC's) Installation Energy Commodity Business Unit (CBU) including its intent, commitment, pilot project, lessons learned, and impending barriers.

39

Relative Movements for Design of Commodities in Nuclear Power Plants  

Broader source: Energy.gov [DOE]

Relative Movements for Design of Commodities in Nuclear Power Plants Javad Moslemian, Vice President, Nuclear Power Technologies, Sargent & Lundy LLC Nezar Abraham, Senior Associate II, Nuclear Power Technologies, Sargent & Lundy LLC

40

Markets & Finance - U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

Workshops Workshops Financial and Physical Oil Market Linkages Workshop (September 23, 2013) Workshop Agenda and Participants Financial and Physical Oil Market Linkages II Workshop (September 27, 2012) Workshop Agenda and Participants Workshop Summary Notes Physical Market Conditions, Paper Market Activity, and the Brent-WTI Spread Bahattin Buyuksahin, Thomas K. Lee, James T. Moser and Michel A. Robe Presentation (Michel Robe) Discussant Presentation (Lutz Kilian) Speculation in the Oil Market Luciana Juvenal and Ivan Petrella Presentation (Luciana Juvenal) Discussant Presentation (James Hamilton) Financial Investment in Commodities Markets: Potential Impact on Commodity Prices and Volatilities Institute of International Finance (IIF) Commodities Task Force Presentation (Hung Tran)

Note: This page contains sample records for the topic "volatility iif commodities" 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

Petroleum Outlook:.More Volatility?  

Gasoline and Diesel Fuel Update (EIA)

Outlook: More Volatility? Outlook: More Volatility? 3/19/01 Click here to start Table of Contents Petroleum Outlook: More Volatility? Product Price Volatility-This Year and in the Future WTI Crude Oil Price: Potential for Volatility Around Base Case OPEC Crude Oil Production 1998-2001 Annual World Oil Demand Growth by Region, 1991-2001 Low Total OECD Oil Stocks* Keep Market Balance Tight Fundamentals Explain High Crude Oil Prices Product Price Spreads Over Crude Oil Reflect Product Market-Based Volatility U.S. Distillate Inventories Distillate Winter Demand Stronger Than Temperatures Would Imply High Production Offset Lack of Inventory High Production Came From High Yields & High Inputs High Margins Bring High Imports Gasoline Price Volatility Is a Concern This Summer Gasoline Volatility

42

Modeling global and local dependence in a pair of commodity forward curves with an application to the US natural gas and heating oil markets  

Science Journals Connector (OSTI)

The goal of this paper is to present a model for the joint evolution of correlated commodity forward curves. Each forward curve is directed by two state variables, namely slope and level, and the model is meant to capture both the local and global dependence structures between slopes and levels. Our framework can be interpreted as an extension of the concept of cointegration to forward curves. The model is applied to a US database of heating oil and natural gas futures prices over the period February 2000February 2009. We find the long-run slope and level relationships between natural gas and heating oil markets, analyze the lead and lag properties between the two energy commodities, the volatilities and correlations between their daily co-movements and evaluate the robustness of these observations to the turmoil experienced by energy markets since 2003.

Steve Ohana

2010-01-01T23:59:59.000Z

43

Sustainable Land Management Through Market-Oriented Commodity Development:  

Open Energy Info (EERE)

Sustainable Land Management Through Market-Oriented Commodity Development: Sustainable Land Management Through Market-Oriented Commodity Development: Case studies from Ethiopia Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Sustainable Land Management Through Market-Oriented Commodity Development: Case studies from Ethiopia Agency/Company /Organization: International Livestock Research Institute Sector: Land Focus Area: Agriculture Topics: Market analysis, Background analysis Resource Type: Publications, Lessons learned/best practices Website: mahider.ilri.org/bitstream/10568/2372/1/WP_21_final.pdf Country: Ethiopia UN Region: "Sub-Saharan Africa" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

44

Modeling Multiple Ecosystem Services, Biodiversity Conservation, Commodity Production, and Tradeoffs at Landscape Scales  

E-Print Network [OSTI]

Modeling Multiple Ecosystem Services, Biodiversity Conservation, Commodity Production ECOSYSTEM SERVICES_ 4 o Modeling multiple ecosystem services, biodiversity conservation, commodity tradeoff between biodiversity conservation and J?l ecosystem services. Scenarios involving more development

Vermont, University of

45

A decomposition approach for commodity pickup and delivery with time-windows under uncertainty  

Science Journals Connector (OSTI)

We consider a special class of large-scale, network-based, resource allocation problems under uncertainty, namely that of multi-commodity flows with time-windows under uncertainty. In this class, we focus on problems involving commodity pickup and delivery ... Keywords: Decomposition, Multi-commodity routing and scheduling, Robust routing and scheduling, Uncertainty

Lavanya Marla, Cynthia Barnhart, Varun Biyani

2014-10-01T23:59:59.000Z

46

UK Energy Statistics: Renewables and Waste, Commodity Balances (2010) |  

Open Energy Info (EERE)

403 403 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142288403 Varnish cache server UK Energy Statistics: Renewables and Waste, Commodity Balances (2010) Dataset Summary Description Annual commodity balances (supply, consumption) for renewables and waste in the UK from 1998 to 2009. Published as part of the Digest of UK energy statistics (DUKES), by the UK Department of Energy & Climate Change (DECC). Waste includes: wood waste, farm waste, sewage gas, landfill gas, waste and tyres. Renewables includes: wood, plant-based biomass, geothermal and active solar heat, hydro, wind, wave and tidal, and liquid biofuels. These data were used to produce Tables 7.1 to 7.3 in the Digest of United Kingdom Energy Statistics 2010 (available: http://decc.gov.uk/assets/decc/Statistics/publications/dukes/348-dukes-2...).

47

Comparison of leading parallel NAS file systems on commodity hardware  

SciTech Connect (OSTI)

High performance computing has experienced tremendous gains in system performance over the past 20 years. Unfortunately other system capabilities, such as file I/O, have not grown commensurately. In this activity, we present the results of our tests of two leading file systems (GPFS and Lustre) on the same physical hardware. This hardware is the standard commodity storage solution in use at LLNL and, while much smaller in size, is intended to enable us to learn about differences between the two systems in terms of performance, ease of use and resilience. This work represents the first hardware consistent study of the two leading file systems that the authors are aware of.

Hedges, R; Fitzgerald, K; Gary, M; Stearman, D M

2010-11-08T23:59:59.000Z

48

Macro determinants of volatility and volatility spillover in energy markets  

Science Journals Connector (OSTI)

Abstract We analyze the time-varying volatility and spillover effects in crude oil, heating oil, and natural gas futures markets by incorporating changes in important macroeconomic variables and major political and weather-related events into the conditional variance equations. We allow asymmetric responses to random disturbances in each market as well as to good and bad economic news related to the overall economy. Results show the presence of asymmetric effects in both random disturbances and macroeconomic variables. A bidirectional volatility spillover effect is found between natural gas and crude oil and between the natural gas and heating oil markets. Crude oil volatility is found to increase following major political, financial, and natural events. Seasonality and day-of-the-week effects are found in the crude oil and heating oil markets.

Berna Karali; Octavio A. Ramirez

2014-01-01T23:59:59.000Z

49

Commodity PAD Districts I II III IV V United States  

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

Commodity Commodity PAD Districts I II III IV V United States Table 10a. Fuel Consumed at Refineries by PAD District, 2012 (Thousand Barrels, Except Where Noted) Crude Oil 0 0 0 0 0 0 Liquefied Petroleum Gases 0 464 490 49 518 1,521 Distillate Fuel Oil 4 89 236 1 209 539 Residual Fuel Oil 26 18 11 16 469 540 Still Gas 13,838 50,328 108,359 8,694 38,875 220,094 Marketable Petroleum Coke 0 0 0 528 166 694 Catalyst Petroleum Coke 9,003 17,611 42,614 2,852 12,416 84,496 Natural Gas (million cubic feet) 38,347 143,702 474,359 26,971 159,849 843,228 Coal (thousand short tons) 30 0 0 0 0 30 Purchased Electricity (million kWh) 2,355 11,892 23,255 2,003 5,130 44,635 Purchased Steam (million pounds) 3,849 12,723 88,922 1,439 14,426 121,359 Other Products 40 47 677 67 1,141 1,972

50

Survey of Alternative Feedstocks for Commodity Chemical Manufacturing  

SciTech Connect (OSTI)

The current high prices for petroleum and natural gas have spurred the chemical industry to examine alternative feedstocks for the production of commodity chemicals. High feedstock prices have driven methanol and ammonia production offshore. The U.S. Chemical Industry is the largest user of natural gas in the country. Over the last 30 years, alternatives to conventional petroleum and natural gas feedstocks have been developed, but have limited, if any, commercial implementation in the United States. Alternative feedstocks under consideration include coal from unconventional processing technologies, such as gasification and liquefaction, novel resources such as biomass, stranded natural gas from unconventional reserves, and heavy oil from tar sands or oil shale. These feedstock sources have been evaluated with respect to the feasibility and readiness for production of the highest volume commodity chemicals in the United States. Sources of organic compounds, such as ethanol from sugar fermentation and bitumen-derived heavy crude are now being primarily exploited for fuels, rather than for chemical feedstocks. Overall, government-sponsored research into the use of alternatives to petroleum feedstocks focuses on use for power and transportation fuels rather than for chemical feedstocks. Research is needed to reduce cost and technical risk. Use of alternative feedstocks is more common outside the United States R&D efforts are needed to make these processes more efficient and less risky before becoming more common domestically. The status of alternative feedstock technology is summarized.

McFarlane, Joanna [ORNL; Robinson, Sharon M [ORNL

2008-02-01T23:59:59.000Z

51

In Search of a Statistically Valid Volatility Risk Factor  

E-Print Network [OSTI]

The cross- section of volatility and expected returns, Theof a Statistically Valid Volatility Risk Factor (revised)of a Statistically Valid Volatility Risk Factor Robert M.

Anderson, Robert M.; Bianchi, Stephen W.; Goldberg, Lisa R.

2013-01-01T23:59:59.000Z

52

Volatility in natural gas and oil markets  

E-Print Network [OSTI]

Using daily futures price data, I examine the behavior of natural gas and crude oil price volatility since 1990. I test whether there has been a significant trend in volatility, whether there was a short-term increase in ...

Pindyck, Robert S.

2003-01-01T23:59:59.000Z

53

EU BIOFUEL USE AND AGRICULTURAL COMMODITY PRICES: A REVIEW OF THE EVIDENCE BASE  

E-Print Network [OSTI]

EU BIOFUEL USE AND AGRICULTURAL COMMODITY PRICES: A REVIEW OF THE EVIDENCE BASE Report prepared: Kretschmer, B, Bowyer, C and Buckwell, A (2012) EU Biofuel Use and Agricultural Commodity Prices: A Review............................................................................................................. 8 2 EU POLICY DRIVING BIOFUELS DEMAND AND OUTLOOK FOR THIS DEMAND TO 2020. 9 2.1 What is the current

54

Commodities_Spector June 2013. - EIA (Gas).pmd  

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

American Natural Gas Markets: American Natural Gas Markets: Not Quite Out of the Woods June 2013 Katherine Spector - Head of Commodities Strategy CIBC Worlds Markets katherine.spector@cibc.com K. Spector - June 2013 2 North American Natural Gas Marginally Supportive in 2013... But Not Out of the Woods K. Spector - June 2013 3 Not Out Of The Woods Yet... * The US gas balance looks more price supportive in 2013, but in the short-run (12-24 months) both gas supply and gas demand are still very price elastic. That means rangebound prices. * In the medium- to long-run, gas production will continue to be price sensitive. It is when gas demand - specifically utility demand for gas - is no longer price elastic that the market will truly turn the corner. The 2015-16 period will be key. * Last summer gave us a taste of what coal-to-gas substitution can do to the market. This year will

55

CACI: Cesium-137 Agricultural Commodities Irradiator: Final design report  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of Irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site.

Subbaraman, G.; Conners, C.C.

1986-12-19T23:59:59.000Z

56

Oil commodity returns and macroeconomic factors: A time-varying approach  

Science Journals Connector (OSTI)

Abstract This paper analyses the dynamic influence of macroeconomic factors on oil commodity returns (crude oil and heating oil) shown in monthly data over the period of 19902013. Using a time-varying parameter model via the Kalman filter, we find that macroeconomic factors are relevant for explaining oil commodity returns. We find that multilateral exchange rates have a negative effect on commodity returns. We confirm the existence of a strong linkage between energy and non-energy commodities. More importantly, we find shifts in global demand and SP500 effects that are not identified through the constant parameter model. These variables have had a progressively positive effect on oil commodity returns, especially since 2008.

Christophe Schalck; Rgis Chenavaz

2015-01-01T23:59:59.000Z

57

Volatile compounds from marine algae  

Science Journals Connector (OSTI)

Volatile compounds from marine algae ... Seasonal Variations of Bromophenols in Brown Algae (Padina arborescens, Sargassum siliquastrum, and Lobophora variegata) Collected in Hong Kong ... Seasonal Variations of Bromophenols in Brown Algae (Padina arborescens, Sargassum siliquastrum, and Lobophora variegata) Collected in Hong Kong ...

Richard E. Moore

1977-02-01T23:59:59.000Z

58

5, 463499, 2008 Oxygenated volatiles  

E-Print Network [OSTI]

of flooding on the exchange of the volatile C2-compounds ethanol, acetaldehyde and acetic acid between leaves Discussion EGU Abstract The effect of root inundation on the leaf emissions of ethanol, acetaldehyde in stomatal conduc-10 tance. Flooding of the roots resulted in leaf emissions of ethanol and acetaldehyde

Boyer, Edmond

59

MegaProto: 1 TFlops/10 kW Rack Is Feasible Even with Only Commodity Technology  

E-Print Network [OSTI]

MegaProto: 1 TFlops/10 kW Rack Is Feasible Even with Only Commodity Technology Hiroshi Nakashima cluster build only with commodity components to implement this claim. A one-rack system is composed of 32 as with other racks. Each cluster unit houses 16 low-power dollar- bill-sized commodity PC

60

Volatility clustering in land markets  

E-Print Network [OSTI]

analysis. Applying a Lagrange Multiplier (LM) test for AutoRegressive Conditional Heteroskedasticity (ARCH) effects in the Canadian land markets, we find that clustering in land price returns exists in Alberta, Ontario, Quebec, and British Columbia... by even higher volatility and vice versa. III. Data and Descriptive Statistics The monthly land price index for each individual province is obtained from Statistics Canada, covering all of the Canadian provinces (Alberta, Ontario, Quebec...

Bao, Helen X. H.; Huang, Hui; Huang, Yu-Lieh; Lin, Pin-te

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

The Cesium-137 Agricultural Commodities Irradiator (CACI) final design report  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. Over 100 engineering drawings are included.

Not Available

1986-12-19T23:59:59.000Z

62

The Cesium-137 Agricultural Commodities Irradiator (CACI) final design report  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. Site characterization data and equipment engineering drawings are included.

Not Available

1986-12-19T23:59:59.000Z

63

Speakers: Stephen Harvey, EIA Dan M. Berkovitz, U.S. Commodity Futures Trading Commission  

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

6: "Regulating Energy Commodities" 6: "Regulating Energy Commodities" Speakers: Stephen Harvey, EIA Dan M. Berkovitz, U.S. Commodity Futures Trading Commission Sean Cota, Cota & Cota R. Skip Horvath, Natural Gas Supply Association Deanna L. Newcomb, McDermott Will & Emery LLP [Note: Recorders did not pick up introduction of panel (see biographies for details on the panelists) or introduction of session.] Steve Harvey: Why don't we start kind taking our seats and give it just a...well, no looks like we're pretty close. It's a disadvantage, I guess being last on a beautiful day in Washington after a nasty winter. So, I'm glad that the [inaudible] brave folks are still here with us. This panel is on regulating energy commodities. My name is Steve Harvey. I'm the Director of the Office of Oil and Gas at EIA. I will not go into the details

64

Causes, Magnitude and Consequences of Price Variability in Agricultural Commodity Market: An African Perspective  

E-Print Network [OSTI]

­ unbridled population growth, oil price fluctuations, importation policies, water availability and political market, hunger, undernourishment in Africa, food productivity, population growth, oil price, importation1 Causes, Magnitude and Consequences of Price Variability in Agricultural Commodity Market

65

An analysis of bulk agricultural commodity buying behavior in selected developing economies  

E-Print Network [OSTI]

AN ANALYSIS OF BULK AGRICULTURAL COMMODITY BUYING BEHAVIOR IN SELECTED DEVELOPING ECONOMIES A Thesis by Kimberly Renee Moore Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1982 Major Subject: Agricultural Economics AN ANALYSIS OF BULK AGRICULTURAL COMMODITY BUYING BEHAVIOR IN SELECTED DEVELOPING ECONOMIES A Thesis by Kimberly Renee Moore Approved as to style and content by: ( i n o Committee...

Moore, Kimberly Renee

1982-01-01T23:59:59.000Z

66

Silicon Nanowires for Non-Volatile Memory  

E-Print Network [OSTI]

Silicon Nanowires for Non-Volatile Memory P R O J E C T L E A D E R : Curt A. Richter (NIST) C O L approaches for silicon nanowire non-volatile memory. K E Y A C C O M P L I S H M E N T S Fabricated novel non-volatile memory cells with silicon nanowire channels and Al2 O3 /HfO2 /SiO2 gate dielectric storage stacks

67

Elastic Prices and Volatile Energy Generation.  

E-Print Network [OSTI]

?? New possibilities are developing in the infrastructure of electrical systems to meet the new demand of more volatile power generation. This study focuses on (more)

Daln, Anders

2010-01-01T23:59:59.000Z

68

Modelling futures price volatility in energy markets: Is there a role for financial speculation?  

Science Journals Connector (OSTI)

Abstract This paper models volatility in four energy futures markets, adopting GARCH models. The variance equation is enriched with alternative measures of speculation, based on CFTC data: the market share of non-commercial traders, the Working's T index, and the percentage of net long positions of non-commercials over total open interest in future markets. It also includes a control for market liquidity. We consider four energy commodities (light sweet crude oil, heating oil, gasoline and natural gas) over the period 20002014, analysed at weekly frequency. We find that speculation presents a negative and significant sign. The robustness exercise shows that: i) results remain unchanged through different model specifications (GARCH-in-mean, EGARCH, and TARCH); ii) results are robust to different specifications of the mean and variance equation.

Matteo Manera; Marcella Nicolini; Ilaria Vignati

2014-01-01T23:59:59.000Z

69

Causality and volatility spillovers among petroleum prices of WTI, gasoline and heating oil in different locations  

Science Journals Connector (OSTI)

This paper examines the time series properties of daily spot and futures prices for three petroleum types traded at five commodity centers within and outside the United States. Examining five combinations of the spot and futures prices by petroleum type and trading center, the cointegration tests of each of these five groups suggest that spot and futures contracts offer little room for long-run commodity portfolio diversification. In the West Texas Intermediate (WTI) crude-oil group, the VEC model indicates that the New York Mercantile Exchange (NYMEX) 1-month futures price has the upper hand in terms of directional causality and volatility spillovers. In the NYMEX gasoline system, there are bi-directional causality relationships among all the gasoline spot and futures prices, but the spot price produces the greatest spillover. In the NYMEX heating oil system, information transmission and predictability among the spot, 1- and 3-month futures are found to be particularly strong and significant. In the international gasoline spot market, contrary to the world crude-oil market, there is no apparent world gasoline spot leader for the gasoline spot prices.

Shawkat Hammoudeh; Huimin Li; Bang Jeon

2003-01-01T23:59:59.000Z

70

Current status of fluoride volatility method development  

SciTech Connect (OSTI)

The Fluoride Volatility Method is based on a separation process, which comes out from the specific property of uranium, neptunium and plutonium to form volatile hexafluorides whereas most of fission products (mainly lanthanides) and higher transplutonium elements (americium, curium) present in irradiated fuel form nonvolatile tri-fluorides. Fluoride Volatility Method itself is based on direct fluorination of the spent fuel, but before the fluorination step, the removal of cladding material and subsequent transformation of the fuel into a powdered form with a suitable grain size have to be done. The fluorination is made with fluorine gas in a flame fluorination reactor, where the volatile fluorides (mostly UF{sub 6}) are separated from the non-volatile ones (trivalent minor actinides and majority of fission products). The subsequent operations necessary for partitioning of volatile fluorides are the condensation and evaporation of volatile fluorides, the thermal decomposition of PuF{sub 6} and the finally distillation and sorption used for the purification of uranium product. The Fluoride Volatility Method is considered to be a promising advanced pyrochemical reprocessing technology, which can mainly be used for the reprocessing of oxide spent fuels coming from future GEN IV fast reactors.

Uhlir, J.; Marecek, M.; Skarohlid, J. [UJV - Nuclear Research Institute, Research Centre Rez, CZ-250 68 Husinec - Rez 130 (Czech Republic)

2013-07-01T23:59:59.000Z

71

Partitioning of Volatile Organics in Diesel Particulate and Exhaust...  

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

and Exhaust Partitioning of Volatile Organics in Diesel Particulate and Exhaust Evaluation of how sampling details affect the measurement of volatile organic compounds in...

72

Detection of Low Volatility Organic Analytes on Soils Using Infrared...  

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

of Low Volatility Organic Analytes on Soils Using Infrared Reflection Spectroscopy. Abstract: Previous work on detection of low-volatility liquid organic (and...

73

Comparative Toxicity of Combined Particle and Semi-Volatile Organic...  

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

Toxicity of Combined Particle and Semi-Volatile Organic Fractioins of Gasoline and Diesel Emissions Comparative Toxicity of Combined Particle and Semi-Volatile Organic Fractioins...

74

Volatile organic compound sensing devices  

DOE Patents [OSTI]

Apparatus employing vapochromic materials in the form of inorganic double complex salts which change color reversibly when exposed to volatile organic compound (VOC) vapors is adapted for VOC vapor detection, VOC aqueous matrix detection, and selective VOC vapor detection. The basic VOC vapochromic sensor is incorporated in various devices such as a ground probe sensor, a wristband sensor, a periodic sampling monitor, a soil/water penetrometer, an evaporative purge sensor, and various vacuum-based sensors which are particularly adapted for reversible/reusable detection, remote detection, continuous monitoring, or rapid screening of environmental remediation and waste management sites. The vapochromic sensor is used in combination with various fiber optic arrangements to provide a calibrated qualitative and/or quantitative indication of the presence of VOCs.

Lancaster, Gregory D. (Idaho Falls, ID); Moore, Glenn A. (Idaho Falls, ID); Stone, Mark L. (Idaho Falls, ID); Reagen, William K. (Stillwater, MN)

1995-01-01T23:59:59.000Z

75

Volatile organic compound sensing devices  

DOE Patents [OSTI]

Apparatus employing vapochromic materials in the form of inorganic double complex salts which change color reversibly when exposed to volatile organic compound (VOC) vapors is adapted for VOC vapor detection, VOC aqueous matrix detection, and selective VOC vapor detection. The basic VOC vapochromic sensor is incorporated in various devices such as a ground probe sensor, a wristband sensor, a periodic sampling monitor, a soil/water penetrometer, an evaporative purge sensor, and various vacuum-based sensors which are particularly adapted for reversible/reusable detection, remote detection, continuous monitoring, or rapid screening of environmental remediation and waste management sites. The vapochromic sensor is used in combination with various fiber optic arrangements to provide a calibrated qualitative and/or quantitative indication of the presence of VOCs. 15 figs.

Lancaster, G.D.; Moore, G.A.; Stone, M.L.; Reagen, W.K.

1995-08-29T23:59:59.000Z

76

Securing non-volatile memory regions  

DOE Patents [OSTI]

Methods, apparatus and articles of manufacture to secure non-volatile memory regions are disclosed. An example method disclosed herein comprises associating a first key pair and a second key pair different than the first key pair with a process, using the first key pair to secure a first region of a non-volatile memory for the process, and using the second key pair to secure a second region of the non-volatile memory for the same process, the second region being different than the first region.

Faraboschi, Paolo; Ranganathan, Parthasarathy; Muralimanohar, Naveen

2013-08-20T23:59:59.000Z

77

Volatile constituents in a wood pyrolysis oil  

E-Print Network [OSTI]

Science VOLATILE CONSTITUTENTS IN A WOOD PYROLYSIS OIL A Thesis SHIH-CHIEN LIN Appro d as to style and content by: (Chairman of Committee) Head of epa tmen (Member Member Nay 1978 442936 ABSTRACT Volatile Constituents in a Wood Pyrolysis Oil.../120 Supelcoport. Other trace constituents of volatile acid were also 'dentifi="' by trap- ping the substances from the C. C. column into i: n;- 0-sh ped capillary tube and subjecting to mass spectrometry. The corrosivity of pyrolysis oil and it, volati'e acids...

Lin, Shih-Chien

1978-01-01T23:59:59.000Z

78

Partitioning of Volatile Organics in Diesel Particulate and Exhaust  

Broader source: Energy.gov [DOE]

Evaluation of how sampling details affect the measurement of volatile organic compounds in diesel exhaust

79

The Role of Volatiles in Coal Combustion  

Science Journals Connector (OSTI)

Our knowledge of the role of volatiles in coal combustion ranges at this time from the self-evident to the ambiguous. The clearest point on which all agree is that pyrolysis will occur during the total coal co...

Robert H. Essenhigh; Eric M. Suuberg

1987-01-01T23:59:59.000Z

80

Volatile Organic Compounds Emissions from Biomass Combustion  

Science Journals Connector (OSTI)

The emissions of Volatile Organic Compounds (VOC) from biomass combustion have been investigated. VOC contribute both to ... 0.510 MW. A variety of biomass fuel types and combustion equipment was covered. The su...

Lennart Gustavsson; Mats-Lennart Karlsson

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Production of renewable jet fuel range alkanes and commodity chemicals from integrated catalytic  

E-Print Network [OSTI]

, carbohydrate hydrolysis and dehydration, and catalytic upgrading of platform chemicals. The technology centersProduction of renewable jet fuel range alkanes and commodity chemicals from integrated catalytic and subsequently upgrading these two platforms into a mixture of branched, linear, and cyclic alkanes of molecular

California at Riverside, University of

82

Equilibrium Forward Curves for Commodities BRYAN R. ROUTLEDGE, DUANE J. SEPPI,  

E-Print Network [OSTI]

. As a consequence of a nonnegativity constraint on inventory, the spot commodity has an embedded timing option that is absent in forward con- tracts. This option's value changes over time due to both endogenous inventory extend the model to incorporate a permanent second factor and calibrate the model to crude oil futures

83

Merchant Commodity Storage and Term Structure Model Error Nicola Secomandi,1  

E-Print Network [OSTI]

; specifically, we consider natural gas storage lease contracts (Maragos 2002). Natural gas is an important flows of commodity and energy conversion assets as real options based on stochastic models the futures term structure affect the valuation and hedging of natural gas storage. We find that even small

Sadeh, Norman M.

84

Disco: Running Commodity Operating Systems on Scalable Multiprocessors Edouard Bugnion, Scott Devine, and Mendel Rosenblum  

E-Print Network [OSTI]

Disco: Running Commodity Operating Systems on Scalable Multiprocessors Edouard Bugnion, Scott operating system on a multiprocessor. Our experience shows that the overheads of the monitor are small of these systems. To reduce the memory overheads associated with running multiple operating systems, we have

Yang, Junfeng

85

Modelling oil price volatility with structural breaks  

Science Journals Connector (OSTI)

In this paper, we provide two main innovations: (i) we analyze oil prices of two prominent markets namely West Texas Intermediate (WTI) and Brent using the two recently developed tests by Narayan and Popp (2010) and Liu and Narayan, 2010 both of which allow for two structural breaks in the data series; and (ii) the latter method is modified to include both symmetric and asymmetric volatility models. We identify two structural breaks that occur in 1990 and 2008 which coincidentally correspond to the Iraqi/Kuwait conflict and the global financial crisis, respectively. We find evidence of persistence and leverage effects in the oil price volatility. While further extensions can be pursued, the consideration of asymmetric effects as well as structural breaks should not be jettisoned when modelling oil price volatility.

Afees A. Salisu; Ismail O. Fasanya

2013-01-01T23:59:59.000Z

86

Volatile Species Retention During Metallic Fuel Casting  

SciTech Connect (OSTI)

Metallic nuclear fuels are candidate transmutation fuel forms for advanced fuel cycles. Through the operation of the Experimental Breeder Reactor II metallic nuclear fuels have been shown to be robust and easily manufactured. However, concerns have been raised concerning loss of americium during the casting process because of its high vapor pressure. In order to address these concerns a gaseous diffusion model was developed and a series of experiments using both manganese and samarium as surrogates for americium were conducted. The modeling results showed that volatility losses can be controlled to essentially no losses with a modest overpressure. Experimental results also showed volatile species retention down to no detectable losses through overpressure, although the loss values varied from the model results the same trend was seen. Bases on these results it is very probably that americium losses through volatility can be controlled to no detectable losses through application of a modest overpressure during casting.

Randall S. Fielding; Douglas L. Proter

2013-10-01T23:59:59.000Z

87

Non-volatile memory for checkpoint storage  

DOE Patents [OSTI]

A system, method and computer program product for supporting system initiated checkpoints in high performance parallel computing systems and storing of checkpoint data to a non-volatile memory storage device. The system and method generates selective control signals to perform checkpointing of system related data in presence of messaging activity associated with a user application running at the node. The checkpointing is initiated by the system such that checkpoint data of a plurality of network nodes may be obtained even in the presence of user applications running on highly parallel computers that include ongoing user messaging activity. In one embodiment, the non-volatile memory is a pluggable flash memory card.

Blumrich, Matthias A.; Chen, Dong; Cipolla, Thomas M.; Coteus, Paul W.; Gara, Alan; Heidelberger, Philip; Jeanson, Mark J.; Kopcsay, Gerard V.; Ohmacht, Martin; Takken, Todd E.

2014-07-22T23:59:59.000Z

88

NBER WORKING PAPER SERIES THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION  

Gasoline and Diesel Fuel Update (EIA)

NBER WORKING PAPER SERIES NBER WORKING PAPER SERIES THE SIMPLE ECONOMICS OF COMMODITY PRICE SPECULATION Christopher R. Knittel Robert S. Pindyck Working Paper 18951 http://www.nber.org/papers/w18951 NATIONAL BUREAU OF ECONOMIC RESEARCH 1050 Massachusetts Avenue Cambridge, MA 02138 April 2013 Robert S. Pindyck hereby declares that he has no relevant material financial interests that relate to the research described in this paper. Christopher R. Knittel hereby declares that he has no direct relevant

89

The structural impact of commodity farm programs on farms in the Southern Texas High Plains  

E-Print Network [OSTI]

OPTIMIZATION OF A HYBRID SOLAR ENERGY COLLECTOR SYSTEM A Thesis by ALAN M. SHI NEMAN Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree MASTER OF SCIENCE May 1981 Major Subject...: Mechanical Engineering 1981 Thesis 5558 THE STRUCTURAL IMPACT OP COMMODITY FARM PROGRAMS ON FARMS IN THE SOUTHERN TEXAS HIGH PLAINS A Thesis by CHRISTINA KAY SHIRLEY Submitted to the Graduate College of Texas AAM University in partial fulfillment...

Shirley, Christina Kay

1981-01-01T23:59:59.000Z

90

Forecasting Volatility in Stock Market Using GARCH Models  

E-Print Network [OSTI]

Forecasting volatility has held the attention of academics and practitioners all over the world. The objective for this master's thesis is to predict the volatility in stock market by using generalized autoregressive ...

Yang, Xiaorong

2008-01-01T23:59:59.000Z

91

Sequential #optimal consumption and investment for stochastic volatility markets  

E-Print Network [OSTI]

Sequential #­optimal consumption and investment for stochastic volatility markets with unknown investment and consumption problem for a Black­Scholes financial market with stochastic volatility sequential estimation. We show that the consumption and investment strategy calculated through

92

Volatility Relationship between Crude Oil and Petroleum Products  

Science Journals Connector (OSTI)

This paper utilizes calculated historical volatility and GARCH models to compare the historical price volatility behavior of crude oil, motor gasoline and heating oil in U.S. markets since 1990. ... GARCH/TARCH m...

Thomas K. Lee; John Zyren

2007-03-01T23:59:59.000Z

93

X-ray elemental online analyzer measures volatiles  

SciTech Connect (OSTI)

The use of an online XRF analyser for determining the volatiles content of coal is outlined. 3 figs.

Klein, A.; Pilz, K.; Reich, K. [Indutech Instruments GmbH, Simmersfeld (Germany)

2008-04-15T23:59:59.000Z

94

Volatilization characteristics of solid recovered fuels (SRFs)  

Science Journals Connector (OSTI)

Abstract The volatilization characteristics of three MSW-derived materials (FO, RT and FL) produced by local waste-management companies were investigated as potential solid recovered fuels (SRFs). FL was prepared from sorted domestic waste and consisted of non-recyclable plastics, refuse paper and biomass. RT and FO were obtained through active hygienization of unsorted MSW and refuse materials from selective waste-collection streams. RT was rich in plastics and had low biomass, whereas FO was mainly biomass and refuse paper. The rate of energy release during volatilization depended on the content of biomass and plastic, especially at a low conversion. Major contaminants had different rates of volatilization. Nitrogen and sulfur tended to accumulate in the charred solid, and were released as SO2 and nitrous oxides during both the volatilizationcombustion stage and the char burning stage. Chlorine release was faster for the fuels rich in plastic waste. According to their ash melting characteristics and slagging indexes (Fs: 1188C for FO, 1192C for RT and 1234C for FL) the three fuels were equivalent to commercial SRFs. The three fuels showed potential as standardized SRF, although it would be desirable to reduce their chlorine content and, in the case of FO, to increase its heating value.

Daniel Montan; Snia Abell; Xavier Farriol; Csar Berrueco

2013-01-01T23:59:59.000Z

95

Understanding Price Volatility in Electricity Markets  

Science Journals Connector (OSTI)

This paper illustrates notions of volatility associated with power systems spot prices for electricity. The paper demonstrates a frequency-domain method useful to separate out periodic price variations from random variations. It then uses actual observed ... Keywords: electricity spot pricing, risk management

Fernando L. Alvarado; Rajesh Rajaraman

2000-01-01T23:59:59.000Z

96

Proboscis extension reflex platform for volatiles and semi-volatiles detection  

SciTech Connect (OSTI)

The present invention provides an apparatus for the detection of volatile and semi-volatile chemicals using the olfactory abilities of honey bees that are trained to respond to the presence of a specific chemical in a sample of gas with the proboscis extension reflex (PER). In particular, the geometry and arrangement of the parts of the apparatus are such that the amount of surface area in contact with the sample of gas prior to its introduction to the bees is minimized to improve the detection of particular volatile and semi-volatile that have a tendency to "stick" to contacting surfaces, especially certain chemicals associated with explosives and narcotics. According to another aspect of the present invention, a pre-concentrating means is incorporated with the device to effectively increase the concentration of "sticky" chemicals presented to the insects.

Wingo, Robert M. (Los Alamos, NM); McCabe, Kirsten J. (Los Alamos, NM); Haarmann, Timothy K. (Jemez Pueblo, NM)

2010-11-30T23:59:59.000Z

97

Approximate hedging problem with transaction costs in stochastic volatility markets  

E-Print Network [OSTI]

Approximate hedging problem with transaction costs in stochastic volatility markets Thai Huu Nguyen stochastic volatility markets with transaction costs using a new form for enlarged volatility in Leland between the present setting and high frequency markets with transaction costs. Possibilities to improve

Paris-Sud XI, Université de

98

Online measurements of the emissions of intermediate-volatility and semi-volatile organic compounds from aircraft  

E-Print Network [OSTI]

A detailed understanding of the climate and air quality impacts of aviation requires measurements of the emissions of intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from aircraft. Currently both the ...

Herndon, S. C.

99

Oxidation and volatilization of a niobium alloy  

SciTech Connect (OSTI)

This report presents the findings from a preliminary investigation into oxidation and volatilization characteristics of a niobium alloy. Niobium is a candidate alloy for use in plasma facing components (PFCS) in experimental fusion reactors like the Intemational Thermonuclear Experimental Reactor (ITER). An experimental alloy was tailored to simulate small changes in chemistry which could result from transmutations from irradiation. The alloy was exposed in air and steam between 800[degree]C and 1200[degree]C. Volatilized products and hydrogen were collected and measured. Post-test examinations were also performed on the samples to determine the amount of material loss during the exposures. The obtained measurements of volatilization flux (g/m[sup 2]-s), hydrogen generation rates (liters/m[sup 2]-s), and recession rates (mm/s) are data which can be used for safety analyses and material performance to predict consequences which may result from an accident involving the ingress of air or steam into the plasma chamber of fusion reactor. In our volatility tests, only molybdenum and niobium were found at release levels above the detection limit. Although molybdenum is present at only 0.12 wt%, the quantities of this element volatilized in air are nearly comparable to the quantities of niobium released. The niobium release in steam is only three to four times higher than that of molybdenum in steam. The hydrogen production of the niobium alloy is compared with other PFC materials that we have tested, specifically, beryllium, graphite, and a tunesten alloy. At high temperatures, the hydrogen production rate of the niobium alloy is among the lowest of these materials, significantly lower than beryllium. To understand what this means in an accident situation, modeling is necessary to predict temperatures, and therefore total hydrogen production. The INEL is currently doing this modeling.

Smolik, G.R.; McCarthy, K.A.

1992-07-01T23:59:59.000Z

100

PROHIBITED COMMODITIES  

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

are NOT acceptable for transport by DHL - UNDER ANY CIRCUMSTANCES, including domestic (USA) moves. * Live Animals, Reptiles, Snakes, Birds, Insects (other than those listed below...

Note: This page contains sample records for the topic "volatility iif commodities" 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

Volatility forecasting with smooth transition exponential smoothing  

Science Journals Connector (OSTI)

Adaptive exponential smoothing methods allow smoothing parameters to change over time, in order to adapt to changes in the characteristics of the time series. This paper presents a new adaptive method for predicting the volatility in financial returns. It enables the smoothing parameter to vary as a logistic function of user-specified variables. The approach is analogous to that used to model time-varying parameters in smooth transition generalised autoregressive conditional heteroskedastic (GARCH) models. These non-linear models allow the dynamics of the conditional variance model to be influenced by the sign and size of past shocks. These factors can also be used as transition variables in the new smooth transition exponential smoothing (STES) approach. Parameters are estimated for the method by minimising the sum of squared deviations between realised and forecast volatility. Using stock index data, the new method gave encouraging results when compared to fixed parameter exponential smoothing and a variety of GARCH models.

James W. Taylor

2004-01-01T23:59:59.000Z

102

Pressure maintenance in a volatile oil reservoir  

E-Print Network [OSTI]

reservoir. Historically, produced and makeup gas was injected to maintain pressure. In today's economy. gas has an increasing market value compared to the price of oil. Therefore, it becomes increasingly difficult to justify economically the injection... of produced gas and the purchase of additional make up gas to maintain reservoir pressure. Accordingly, water injection to maintain pressure becomes more favorable economically. This research investigated water injection into a volatile oil reservoir...

Schuster, Bruce Alan

2012-06-07T23:59:59.000Z

103

Slide 1  

Gasoline and Diesel Fuel Update (EIA)

IIF Task Force Report IIF Task Force Report James L. Smith RFF and Southern Methodist University September 27, 2012 IIF's Commentary on Research & Policy - Not a research paper, but an assimilation of research from a valued practitioner perspective. - Moderate tone and modest recommendations. Far above the level of many "white papers" offered up to serve a private agenda. - Provocative for what it says about what research has so far achieved, and what remains to be accomplished. - To be illustrated using five quotations drawn directly from the IIF report. 1. Impact of Speculation on Prices "Proponents argue that speculation does have a measurable impact on trends in commodity prices ..." - Correlation & Granger causality between trading

104

Forecasting Using Time Varying Meta-Elliptical Distributions with a Study of Commodity Futures Prices  

E-Print Network [OSTI]

.g. Iraq war), changes in weather conditions (e.g. global warming), the behaviour of commodity prices can be expected to be nonstationary. 2 There has been some statistical study in this area (e.g. Deb et al., 1996, Taylor, 1980), though, research... returns of gas oil, coffee and rice. Figure I 16 Figure I. Time Series Plot. Gas Oil 0 500 1000 1500 2000 2500 3000 -20 -10 0 10 Ga s Oi l Coffee 0 500 1000 1500 2000 2500 3000 -30 -20 -10 0 10 20 Co ffe e 17 Rice 0 500 1000 1500 2000 2500 3000 -20 -10 0...

Sancetta, Alessio; Nikanrova, Arina

2006-03-14T23:59:59.000Z

105

Factors Affecting Texas Farm Commodity Prices and Index Computation Methods, 1910-58.  

E-Print Network [OSTI]

major Texas farm commodities , were developed using weighted seasonal average ' monthly prices for the 1947-56 period, Figures 4- 14. The prices were adjusted for cycles and 1 trends.) i The zone of price expectancy was calculateil for 1947...-5'6 to afford a measure of the monthly variation in prices from the seasonal average price for the 10-year period. This zone gives the range of the average seasonal price that can be expecte'd for any particular month, in approxi- mately 7 out of 10 years...

Strong, G. B.; Kincannon, J. A.

1959-01-01T23:59:59.000Z

106

Chlor-syngas: Coupling of Electrochemical Technologies for Production of Commodity Chemicals  

Science Journals Connector (OSTI)

This paper describes a novel electrolysis process called chlor-syngas, where synthesis gas is produced at the cathode and chlorine gas is produced at the anode. ... The process described here, chlor-syngas, produces two commodity gas streams, Cl2 and synthesis gas (syngas), using low-value chemicals, CO2 and HCl. ... The chlor-syngas process could replace two existing processes in current use: (1) chlor-alkali for the production of Cl2 and (2) gasification of fossil sources, such as natural gas or coal, to produce syngas. ...

Tedd E. Lister; Eric J. Dufek

2013-01-18T23:59:59.000Z

107

NETL: Ambient Monitoring - Contribution of Semi-volatile Organic Material  

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

Semi-volatile Organics in PM Semi-volatile Organics in PM This project is a cooperative effort between Brigham Young University (BYU) and researchers from the DOE-NETL Office of Science and and Engineering Research to determine the contribution of semi-volatile particulate organic compounds (SVOC) to total ambient suspended fine particulate mass at the NETL-Pittsburgh air monitoring facility. Project funding comes from DOE‘s University Coal Research (UCR) program. The hypothesis of the project is that fine particulate mass will be significantly under-determined in urban environments using single filter samplers such as the PM2.5 Federal Reference Method (FRM) because of the loss of semi-volatile organic compounds (SVOC) from the particles during sampling and storage. It is postulated that fine particulate mass, including the semi-volatile fine particulate organic species, are an appropriate surrogate for the components of fine particles which are associated with observed mortality and morbidity effects in epidemiological studies. Further, it is postulated that the most important fraction of the semi-volatile organic material with respect to exacerbation of health problems will be semi-volatile secondary compounds formed from reactions of volatile organic material with ozone and nitrogen oxides. Under-determination of these semi-volatile species will tend to over emphasize the importance of non-volatile fine particulate components such as sulfate or may reduce the significance of correlations with measured health effects.

108

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

109

A commodity approach to aging management review of supports for license renewal  

SciTech Connect (OSTI)

10CFR Part 54 requires that nuclear power plant licensees who seek renewal of their operating licenses for an additional 20 years of operation (i.e., for a total operating life of 60 years) perform an Integrated Plant Assessment (IPA) on all systems, structures and components (SSCs) within the scope of license renewal. Baltimore Gas and Electric (BGE) and MPR Associates, Inc., have recently completed an aging management review of component supports for Calvert Cliffs Nuclear Power Plant (CCNPP). A commodity approach was used on the basis that component supports perform essentially the same function regardless of the system with which they are associated. This approach, i.e., treating component supports as commodities as opposed to performing the aging management review for each individual component support, resulted in a cost-effective approach for this portion of the IPA. An important feature of the aging management review of component support at CCNPP is the evaluation of the adequacy of existing programs to manage component support aging. Two major programs were included in the evaluation: the ASME Section 11 In-Service Inspection (ISI) Program, and CCNPP`s Seismic Verification Project to resolve USI A-46. The key role that these programs play in the overall aging management strategy for component supports, as well as the evaluation of other on-going activities which complete the aging management approach for component supports, are discussed.

Schlaseman, C.S. [MPR Associates, Inc., Washington, DC (United States); Tilden, B.M. [Baltimore Gas and Electric Co., MD (United States)

1996-09-01T23:59:59.000Z

110

GADOLINIUM SOLUBILITY AND VOLATILITY DURING DWPF PROCESSING  

SciTech Connect (OSTI)

Understanding of gadolinium behavior, as it relates to potential neutron poisoning applications at the DWPF, has increased over the past several years as process specific data have been generated. Of primary importance are phenomena related to gadolinium solubility and volatility, which introduce the potential for gadolinium to be separated from fissile materials during Chemical Process Cell (CPC) and Melter operations. Existing data indicate that gadolinium solubilities under moderately low pH conditions can vary over several orders of magnitude, depending on the quantities of other constituents that are present. With respect to sludge batching processes, the gadolinium solubility appears to be highly affected by iron. In cases where the mass ratio of Fe:Gd is 300 or more, the gadolinium solubility has been observed to be low, one milligram per liter or less. In contrast, when the ratio of Fe:Gd is 20 or less, the gadolinium solubility has been found to be relatively high, several thousands of milligrams per liter. For gadolinium to serve as an effective neutron poison in CPC operations, the solubility needs to be limited to approximately 100 mg/L. Unfortunately, the Fe:Gd ratio that corresponds to this solubility limit has not been identified. Existing data suggest gadolinium and plutonium are not volatile during melter operations. However, the data are subject to inherent uncertainties preventing definitive conclusions on this matter. In order to determine if gadolinium offers a practical means of poisoning waste in DWPF operations, generation of additional data is recommended. This includes: Gd solubility testing under conditions where the Fe:Gd ratio varies from 50 to 150; and Gd and Pu volatility studies tailored to quantifying high temperature partitioning. Additional tests focusing on crystal aging of Gd/Pu precipitates should be pursued if receipt of gadolinium-poisoned waste into the Tank Farm becomes routine.

Reboul, S

2008-01-30T23:59:59.000Z

111

Volatiles as a link between planetary interiors and the environment  

E-Print Network [OSTI]

Volatiles derived from planetary interiors influence magma evolution and environmental processes. Over appropriate timescales, Earth's mantle, crust, ocean, and atmosphere constitute coupled systems. The apparently synchronous ...

Black, Benjamin A. (Benjamin Alexander)

2013-01-01T23:59:59.000Z

112

Price and volatility relationships in the Australian electricity market.  

E-Print Network [OSTI]

??This thesis presents a collection of papers that has been published, accepted or submitted for publication. They assess price, volatility and market relationships in the (more)

Higgs, Helen

2006-01-01T23:59:59.000Z

113

Analysis of International Commodity Shipping Data and the Shipment of NORM to the United States  

SciTech Connect (OSTI)

As part of the Spreader Bar Radiation Detector project, PNNL analyzed US import data shipped through US ports collected over the 12 months of 2006 (over 4.5 million containers). Using these data, we extracted a variety of distributions that are of interest to modelers and developers of active and passive detection systems used to 'scan' IMCCs for potential contraband. This report expands on some of the analysis presented in an earlier report from LLNL, by investigation the foreign port distribution of commodities shipped to the US. The majority of containers shipped to the United States are 40 ft containers ({approx}70%); about 25% are 20 ft; and about 3.6% are 45 ft containers. A small fraction (<1%) of containers are of other more specialized sizes, and very few ports actually ship these unique size containers (a full distribution for all foreign ports is shown in Appendix A below). The primary foreign ports that ship the largest fraction of each container are shown in the table below. Given that 45 ft containers comprise 1 of out every 27 containers shipped to the US, and given the foreign ports from which they are shipped, they should not be ignored in screening; further testing and analysis of radiation measurements for national security with this size container is warranted. While a large amount of NORM is shipped in IMCCs, only a few specific commodities are shipped with enough frequency to present potential issues in screening IMCCs at ports. The majority of containers with NORM will contain fertilizers (5,700 containers), granite (59,000 containers), or ceramic (225,000 containers) materials. Fertilizers were generally shipping in either 20- or 40 ft containers with equal frequency. While granite is mostly shipped in 20 ft containers, ceramic materials can be shipped in either 20- or 40 ft containers. The size of container depended on the specific use of the ceramic or porcelain material. General construction ceramics (such as floor and roofing tiles) tend to be shipped in 20 ft containers. Consumer products made from ceramic materials (e.g., tableware, sinks, and toilets) are generally shipped in 40 ft containers. This distinct discrepancy is due in large part to the packaging of the commodity. Consumer products are generally shipped packed in a box loaded with Styrofoam or other packing material to protect the product from breakage. Construction ceramic materials are generally shipped in less packing material, many times consisting of only a cardboard or wooden box. Granite is almost always shipped in a 20 ft container, given its very high density.

Baciak, James E.; Ely, James H.; Schweppe, John E.; Sandness, Gerald A.; Robinson, Sean M.

2011-10-01T23:59:59.000Z

114

FIELD SCREENING FOR HALOGENATED VOLATILE ORGANIC COMPOUNDS  

SciTech Connect (OSTI)

Western Research Institute (WRI) initiated exploratory work towards the development of new field screening methodology and a test kit to measure halogenated volatile organic compounds (VOCs) in the field. Heated diode and corona discharge sensors are commonly used to detect leaks of refrigerants from air conditioners, freezers, and refrigerators. They are both selective to the presence of carbon-halogen bonds. Commercially available heated diode and corona discharge leak detectors were procured and evaluated for halogenated VOC response. The units were modified to provide a digital readout of signal related to VOC concentration. Sensor response was evaluated with carbon tetrachloride and tetrachloroethylene (perchloroethylene, PCE), which represent halogenated VOCs with and without double bonds. The response characteristics were determined for the VOCs directly in headspace in Tedlar bag containers. Quantitation limits in air were estimated. Potential interferences from volatile hydrocarbons, such as toluene and heptane, were evaluated. The effect of humidity was studied also. The performance of the new devices was evaluated in the laboratory by spiking soil samples and monitoring headspace for halogenated VOCs. A draft concept of the steps for a new analytical method was outlined. The results of the first year effort show that both devices show potential utility for future analytical method development work towards the goal of developing a portable test kit for screening halogenated VOCs in the field.

John F. Schabron; Joseph F. Rovani Jr.; Theresa M. Bomstad

2002-06-01T23:59:59.000Z

115

CACI: Cesium-137 Agricultural Commodities Irradiator: Final design report. Volume 1, Project summary  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of Irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site.

Subbaraman, G.; Conners, C.C.

1986-12-19T23:59:59.000Z

116

A Comment on \\The Cross-Section of Volatility and Expected Returns": The Statistical Signi  

E-Print Network [OSTI]

on "The Cross-Section of Volatility and Expected Returns":on The Cross-Section of Volatility and Expected Returns:the pricing of aggregate volatility risk and idiosyncratic

Anderson, Robert M.; Bianchi, Stephen W.; Goldberg, Lisa R.

2012-01-01T23:59:59.000Z

117

The impact of oil price shocks on the stock market return and volatility relationship  

Science Journals Connector (OSTI)

Abstract This paper examines the impact of structural oil price shocks on the covariance of U.S. stock market return and stock market volatility. We construct from daily data on return and volatility the covariance of return and volatility at monthly frequency. The measures of daily volatility are realized-volatility at high frequency (normalized squared return), conditional-volatility recovered from a stochastic volatility model, and implied-volatility deduced from options prices. Positive shocks to aggregate demand and to oil-market specific demand are associated with negative effects on the covariance of return and volatility. Oil supply disruptions are associated with positive effects on the covariance of return and volatility. The spillover index between the structural oil price shocks and covariance of stock return and volatility is large and highly statistically significant.

Wensheng Kang; Ronald A. Ratti; Kyung Hwan Yoon

2015-01-01T23:59:59.000Z

118

Terrorism, country attributes, and the volatility of stock returns  

Science Journals Connector (OSTI)

Abstract This study investigates the interplay between terrorism and finance, focusing on the stock return volatility of American firms targeted by terrorist attacks. We find terrorism risk is an important factor in explaining the volatility of stock returns, which should be taken into account when modelling volatility. Using a volatility event-study approach and a new bootstrapping technique, we find volatility increases on the day of the attack and remain significant for at least fifteen days following the day of the attack. Cross-sectional analysis of the abnormal volatility indicates that the impact of terrorist attacks differs according to the country characteristics in which the incident occurred. We find that firms operating in wealthier, or more democratic countries, face greater volatility in stock returns relative to firms operating in developing countries. Firm exposure varies with the nature of country location, with country wealth and level of democracy playing an important role in explaining the likelihood of a terrorist attack. Our results show that despite significant terrorist events this past decade, stock markets in developed countries have not taken terrorist risk into sufficient consideration.

Naceur Essaddam; John M. Karagianis

2014-01-01T23:59:59.000Z

119

Nitrogen Trifluoride-Based Fluoride- Volatility Separations Process: Initial Studies  

SciTech Connect (OSTI)

This document describes the results of our investigations on the potential use of nitrogen trifluoride as the fluorinating and oxidizing agent in fluoride volatility-based used nuclear fuel reprocessing. The conceptual process uses differences in reaction temperatures between nitrogen trifluoride and fuel constituents that produce volatile fluorides to achieve separations and recover valuable constituents. We provide results from our thermodynamic evaluations, thermo-analytical experiments, kinetic models, and provide a preliminary process flowsheet. The evaluations found that nitrogen trifluoride can effectively produce volatile fluorides at different temperatures dependent on the fuel constituent.

McNamara, Bruce K.; Scheele, Randall D.; Casella, Andrew M.; Kozelisky, Anne E.

2011-09-28T23:59:59.000Z

120

CACI: The Cesium-137 Agricultural Commodities Irradiator. Final design report: Volume 4, Specifications  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the {sup 137}Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. This Volume, IV, provides specifications as developed for the CACI final design.

Not Available

1986-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

CACI: The Cesium-137 Agricultural Commodities Irradiator. Final design report: Volume 6, Shielding, mechanical, and electrical  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the {sup 137}Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. This Volume, VI, provides the CACI final design features regarding shielding, mechanical and electrical.

Not Available

1986-12-19T23:59:59.000Z

122

The Cesium-137 Agricultural Commodities Irradiator (CACI) final design report. Volume 2, Drawings [Engineering Materials  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. Over 100 engineering drawings are included.

Not Available

1986-12-19T23:59:59.000Z

123

CACI: The Cesium-137 Agricultural Commodities Irradiator. Final design report: Volume 5, Plans, criteria, and requirements  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the {sup 137}Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This Volume V, describes plans, criteria, and requirements.

Not Available

1986-12-19T23:59:59.000Z

124

CACI: The Cesium-137 Agricultural Commodities Irradiator. Final design report: Volume 8, Shielding window  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This volume Volume III, describes the Shielding Window.

Not Available

1986-12-19T23:59:59.000Z

125

The Cesium-137 Agricultural Commodities Irradiator (CACI) final design report. Volume 3, Supplied data [Engineering Materials  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. Site characterization data and equipment engineering drawings are included.

Not Available

1986-12-19T23:59:59.000Z

126

Impact of catalysis on the production of the top 50 US commodity chemicals  

SciTech Connect (OSTI)

Information on each chemical is stored in an accompanying Excel{trademark} 4.0 spreadsheet (``top5Ochem.xcl``). This analysis tool allows the user to make assumptions about process yield improvements and evaluate the corresponding impact on the process and feedstock energy. Many scenarios have been investigated and are reported in the text. If all of the catalytic processes associated with the top 50 chemicals were raised to their maximum process yields, the corresponding process and feedstock energy savings would exceed 0.47 quads per year. More realistic process yield improvements of 1%, 5%, and 10% where possible, would save 0.03, 0.14, and 0.23 quads per year. Many of the commodity chemicals face limitations from both the current catalyst and process. Catalysis is vital, but catalysis alone is not the answer to maximizing energy savings. Integration of catalysis development with process engineering research can lead to significant energy savings during the production of the top 50 chemicals.

Tonkovich, A.L.Y.

1994-03-01T23:59:59.000Z

127

Growth History Of Kilauea Inferred From Volatile Concentrations In  

Open Energy Info (EERE)

History Of Kilauea Inferred From Volatile Concentrations In History Of Kilauea Inferred From Volatile Concentrations In Submarine-Collected Basalts Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Growth History Of Kilauea Inferred From Volatile Concentrations In Submarine-Collected Basalts Details Activities (4) Areas (2) Regions (0) Abstract: Major-element and volatile (H2O, CO2, S) compositions of glasses from the submarine flanks of Kilauea Volcano record its growth from pre-shield into tholeiite shield-stage. Pillow lavas of mildly alkalic basalt at 2600-1900 mbsl on the upper slope of the south flank are an intermediate link between deeper alkalic volcaniclastics and the modern tholeiite shield. Lava clast glasses from the west flank of Papau Seamount are subaerial Mauna Loa-like tholeiite and mark the contact between the two

128

Field Derived Emission Factors For Formaldehyde and other Volatile Organic  

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

Field Derived Emission Factors For Formaldehyde and other Volatile Organic Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units Title Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units Publication Type Report LBNL Report Number LBNL-4083E Year of Publication 2010 Authors Parthasarathy, Srinandini, Randy L. Maddalena, Marion L. Russell, and Michael G. Apte Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Sixteen previously occupied temporary housing units (THUs) were studied to assess emissions of volatile organic compounds. The whole trailer emission factors were evaluated for 36 VOCs including formaldehyde. Indoor sampling was carried out in the THUs located in Purvis staging yard in Mississippi, USA. Indoor temperature and relative humidity (RH) were also measured in all the trailers during sampling. Indoor temperatures were varied (increased or decreased) in a selection of THUs using the

129

Volatility of Vanadia from Vanadia-Based SCR Catalysts under...  

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

Vanadia from Vanadia-Based SCR Catalysts under Accelerated Aging Conditions Volatility of Vanadia from Vanadia-Based SCR Catalysts under Accelerated Aging Conditions TiO2-supported...

130

Volatility and Growth: Credit Constraints and the Composition of Investment  

E-Print Network [OSTI]

How does uncertainty and credit constraints affect the cyclical composition of investment and thereby volatility and growth? This paper addresses this question within a model where firms engage in two types of investment: ...

Aghion, Philippe

131

A nonparametric GARCH model of crude oil price return volatility  

Science Journals Connector (OSTI)

The use of parametric GARCH models to characterise crude oil price volatility is widely observed in the empirical literature. In this paper, we consider an alternative approach involving nonparametric method to model and forecast oil price return volatility. Focusing on two crude oil markets, Brent and West Texas Intermediate (WTI), we show that the out-of-sample volatility forecast of the nonparametric GARCH model yields superior performance relative to an extensive class of parametric GARCH models. These results are supported by the use of robust loss functions and the Hansen's (2005) superior predictive ability test. The improvement in forecasting accuracy of oil price return volatility based on the nonparametric GARCH model suggests that this method offers an attractive and viable alternative to the commonly used parametric GARCH models.

Aijun Hou; Sandy Suardi

2012-01-01T23:59:59.000Z

132

Financial distortions and the distribution of global volatility  

E-Print Network [OSTI]

In this thesis, I study the interactions between various aspects of the financial system and macroeconomic volatility in a globally integrated environment. In Chapter 1, I illustrate that an efficient allocation of liquidity ...

Eden, Maya Rachel

2011-01-01T23:59:59.000Z

133

The impact of fuel price volatility on transportation mode choice  

E-Print Network [OSTI]

In recent years, the price of oil has driven large fluctuations in the price of diesel fuel, which is an important cost component in freight logistics. This thesis explores the impact of fuel price volatility on supply ...

Kim, Eun Hie

2009-01-01T23:59:59.000Z

134

In Vitro Genotoxicity of Particulate and Semi-Volatile Organic...  

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

Particulate and Semi-Volatile Organic Compound Exhaust Materails from a Set of Gasoline and a Set of Diesel Engine Vehicles Operated at 30F In Vitro Genotoxicity of Particulate...

135

Relationship of organizational communication methods and leaders' perceptions of the 2002 Farm Bill: a study of selected commodity-specific, general agricultural, and natural resources organizations  

E-Print Network [OSTI]

The purpose of this study was to determine perceptions of organizational communication methods used by selected commodity-specific, general agricultural and, conservation or natural resources organizations to disseminate information about the Farm...

Catchings, Christa Leigh

2005-11-01T23:59:59.000Z

136

Volatiles from sheep wool and the modification of wool odour  

Science Journals Connector (OSTI)

Compounds in the headspace of a variety of wool samples and greases have been analysed with the aid of solid phase microextraction using a carboxen-polydimethylsiloxane coated fibre. Volatiles were analysed by gas chromatography/mass spectrometry, while sulphur-containing compounds were analysed using gas chromatography/pulsed flame photometric detector. The volatile organic compounds released from scoured sheep wool and wool grease were investigated in vials under dry and humid conditions between 20 and 40C. A laboratory scale scouring apparatus was also used to investigate the emission of volatiles at different stages of the wool scouring process. A variety of volatile compounds, including sulphur-containing compounds, were emitted with their concentration increasing with temperature and humidity in most cases. There was a progressive decrease in the number of volatiles released after various stages of the wool scouring process. Wool grease emitted an assortment of volatile compounds, many of which were also detected in the headspace of scoured wool. Degradation of wool and particularly wool grease is thought to be responsible for the occurrence of the detected compounds. Use of an odour index helped identify possible contributors to the odour of wool, but unqualified proof remains elusive because of the possibility that compounds present at concentrations below detection limits may have made a contribution. A major aim of this work was to improve the odour of scoured wool. To achieve this aim two antioxidants were separately incorporated into the wool scouring process. In both cases, this resulted in a reduction of the number of headspace volatile compounds detected, and a distinct improvement in the pleasantness of the odour with an accompanying reduction in the odour intensity.

A.M Lisovac; D Shooter

2003-01-01T23:59:59.000Z

137

FIELD SCREENING FOR HALOGENATED VOLATILE ORGANIC COMPOUNDS  

SciTech Connect (OSTI)

Western Research Institute (WRI) is continuing work toward the development of new screening methodology and a test kit to measure halogenated volatile organic compounds (VOCs) in the field. Heated diode and corona discharge sensors are commonly used to detect leaks of refrigerants from air conditioners, freezers, and refrigerators. They are both selective to the presence of halogens. In prior work, the devices were tested for response to carbon tetrachloride, heptane, toluene, and water vapors. In the current work, sensor response was evaluated with sixteen halogenated VOCs relative to carbon tetrachloride. The results show that the response of the various chlorinated VOCs is within an order of magnitude of the response to carbon tetrachloride for each of the sensors. Thus, for field screening a single response factor can be used. Both types of leak detectors are being further modified to provide an on-board LCD signal readout, which is related to VOC concentration. The units will be fully portable and will operate with 115-V line or battery power. Signal background, noise level, and response data on the Bacharach heated diode detector and the TIF corona discharge detector show that when the response curves are plotted against the log of concentration, the plot is linear to the upper limit for the particular unit, with some curvature at lower levels. When response is plotted directly against concentration, the response is linear at the low end and is curved at the high end. The dynamic ranges for carbon tetrachloride of the two devices from the lower detection limit (S/N=2) to signal saturation are 4-850 vapor parts per million (vppm) for the corona discharge unit and 0.01-70 vppm for the heated diode unit. Additional circuit modifications are being made to lower the detection limit and increase the dynamic response range of the corona discharge unit. The results indicate that both devices show potential utility for future analytical method development work toward the goal of developing a portable test kit for screening halogenated VOCs in the field.

John F. Schabron; Joseph F. Rovani, Jr.; Theresa M. Bomstad

2003-07-01T23:59:59.000Z

138

Temporal Geochemical Variations In Volatile Emissions From Mount St Helens,  

Open Energy Info (EERE)

Temporal Geochemical Variations In Volatile Emissions From Mount St Helens, Temporal Geochemical Variations In Volatile Emissions From Mount St Helens, Usa, 1980-1994 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Temporal Geochemical Variations In Volatile Emissions From Mount St Helens, Usa, 1980-1994 Details Activities (2) Areas (1) Regions (0) Abstract: Fumarole discharges (95-560°C) collected from the dacite dome inside Mount St. Helens crater show temporal changes in their isotopic and chemical compositions. A ΔD vs. Δ18O plot shows that condensed waters from the gases are mixtures of meteoric and magmatic components, but that the apparent magmatic end-member in 1994 was depleted by about 7‰ in ΔD relative to the apparent end-member in 1980. Based on ΔD modeling, approximately 63% of shallow, post-1980 magma has yet to degas.

139

Volatiles in hydrothermal fluids- A mass spectrometric study of fluid  

Open Energy Info (EERE)

Volatiles in hydrothermal fluids- A mass spectrometric study of fluid Volatiles in hydrothermal fluids- A mass spectrometric study of fluid inclusions from active geothermal systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Volatiles in hydrothermal fluids- A mass spectrometric study of fluid inclusions from active geothermal systems Details Activities (4) Areas (4) Regions (0) Abstract: A system for analysis of inclusion gas contents based upon quadrupole mass spectrometry has been designed, assembled and tested during the first 7 months of funding. The system is currently being tested and calibrated using inclusions with known gas contents from active geothermal systems. Analyses are in progress on inclusions from the Salton Sea, Valles Caldera, Geysers, and Coso geothermal systems. Author(s): Mckibben, M. A.

140

Integration of Micro Patterning Techniques into Volatile Functional Materials and Advanced Devices  

E-Print Network [OSTI]

Novel micro patterning techniques have been developed for the patterning of volatile functional materials which cannot be conducted by conventional photolithography. First, in order to create micro patterns of volatile materials (such as bio...

Hong, Jung M.

2010-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Marginalization and aggregation of exponential smoothing models in forecasting portfolio volatility  

Science Journals Connector (OSTI)

This paper examines exponentially weighted moving average models for predicting volatility and assessing risk in portfolios. It proposes a method that identifies the decay factors of the marginal volatility mo...

Giacomo Sbrana; Andrea Silvestrini

2012-01-01T23:59:59.000Z

142

A two-dimensional volatility basis set Part 2: Diagnostics of organic-aerosol evolution  

E-Print Network [OSTI]

We discuss the use of a two-dimensional volatility-oxidation space (2-D-VBS) to describe organic-aerosol chemical evolution. The space is built around two coordinates, volatility and the degree of oxidation, both of which ...

Donahue, N. M.

143

Earnings and labour market volatility in Britain, with a transatlantic comparison  

Science Journals Connector (OSTI)

Abstract We contribute new evidence about earnings and labour market volatility in Britain over the period 19922008, for women as well as men, and provide transatlantic comparisons (Most research about volatility refers to earnings volatility for US men.). Earnings volatility declined slightly for both men and women over the period but the changes are not statistically significant. When we look at labour market volatility, i.e. also including individuals with zero earnings in the calculations, there is a statistically significant decline in volatility for both women and men, with the fall greater for men. Using variance decompositions, we demonstrate that the fall in labour market volatility is largely accounted for by changes in employment attachment rates. We show that volatility trends in Britain, and what contributes to them, differ from their US counterparts in several respects.

Lorenzo Cappellari; Stephen P. Jenkins

2014-01-01T23:59:59.000Z

144

Macrocyclic-, polycyclic-, and nitro musks in cosmetics, household commodities and indoor dusts collected from Japan: Implications for their human exposure  

Science Journals Connector (OSTI)

Abstract This paper reported the occurrence and concentrations of macrocyclic-, polycyclic- and nitro musks in cosmetics and household commodities collected from Japan. The high concentrations and detection frequencies of Musk T, habanolide, and exaltolides were found in commercial products, suggesting their large amounts of production and usage in Japan. Polycyclic musks, HHCB and OTNE, also showed high concentrations in cosmetics and products. The estimated dairy intakes of Musk T and HHCB by the dermal exposure to commercial products were 7.8 and 7.9?g/kg/day in human, respectively, and perfume and body lotion are dominant exposure sources. We also analyzed synthetic musks in house dusts. Polycyclic musks, HHCB and OTNE, showed high concentrations in samples, but macrocyclic musks were detected only in a few samples, although these types of musks were highly detected in commercial products. This is probably due to easy-degradation of macrocyclic musks in indoor environment. The dairy intakes of HHCB by dust ingestions were 0.22ng/kg/day in human, which were approximately five orders of magnitudes lower than those of dermal absorption from commercial household commodities.

Haruhiko Nakata; Mari Hinosaka; Hayato Yanagimoto

2015-01-01T23:59:59.000Z

145

ALDEHYDE AND OTHER VOLATILE ORGANIC CHEMICAL EMISSIONS IN FOUR FEMA TEMPORARY HOUSING UNITS FINAL REPORT  

E-Print Network [OSTI]

Urea Formaldehyde Foam Insulation (UFFI), Consumer Productdiisobutyrate Urea Formaldehyde Foam Insulation orexpandable foam insulation Volatile Organic Chemical TMPD-

Maddalena, Randy L.

2008-01-01T23:59:59.000Z

146

Algorithms and Data Representations for Emerging Non-Volatile Memories  

E-Print Network [OSTI]

-volatile memory (NVM). NVMs provide excellent performance such as random access, high I/O speed, low power consumption, and so on. The storage density of NVMs keeps increasing following Moores law. However, higher storage density also brings significant data...

Li, Yue

2014-04-29T23:59:59.000Z

147

Organizational Adaptation in Volatile Environments Kathleen M. Carley  

E-Print Network [OSTI]

by environmental volatility. This paper uses a computational model of organizational learning to theorize about within an ecology of learning in which change is occurring at many levels -- individual, organizational organizational adaptation as resulting from strategic maneuvering in a learning ecology will be illustrated using

Sadeh, Norman M.

148

A Class of Stochastic Volatility Models for Environmental Applications  

E-Print Network [OSTI]

Pharmaceuticals Inc. Ke Wang, Pfizer Inc. F. Jay Breidt, Colorado State University Richard A. Davis, Columbia stochastic volatility modeling to this context, resulting in a stochastic heteroscedastic process (SHP), which is unconditionally stationary and non-Gaussian. Conditional on a latent GP, the SHP

Breidt, F. Jay

149

Renewable Hydrogen from Nonvolatile Fuels by Reactive Flash Volatilization  

Science Journals Connector (OSTI)

...with refined soy oil, biodiesel (the volatile methyl...heat supplied. This process produces ?70% selectivity...intensification of the process into millisecond time...powders is possible. The process also requires further experiments, long-term evaluation, and modeling to...

J. R. Salge; B. J. Dreyer; P. J. Dauenhauer; L. D. Schmidt

2006-11-03T23:59:59.000Z

150

Determination of Steam-Volatile Organic Acids in Fermentation Media by Gas-Liquid Chromatography  

Science Journals Connector (OSTI)

...research-article Articles Determination of Steam-Volatile Organic Acids in Fermentation...utility in the separation and quantitation of steam-volatile organic acids commonly produced...column of Carbowax 20 M + H3PO4 separated steam-volatile organic acids completely. The...

L. V. Packett; R. W. McCune

1965-01-01T23:59:59.000Z

151

MAGNESIUM ABSORPTION IN THE CCUM OF RATS RELATED TO VOLATILE FATTY ACIDS PRODUCTION  

E-Print Network [OSTI]

MAGNESIUM ABSORPTION IN THE C?CUM OF RATS RELATED TO VOLATILE FATTY ACIDS PRODUCTION Y. RAYSSIGUIER RELATIONS ENTRE L'ABSORPTION C,4ECALE DE MAGNESIUM CHEZ LE RAT ET LA PRODUCTION D'ACIDES GRAS VOLATILS du caecum, pH, acides gras volatils, activité microbienne. Introduction The mode of magnesium

Paris-Sud XI, Université de

152

Volatility spillover effect of emerging markets and economic growth versus oil price volatility : the case of the Gulf Co-operation Council countries.  

E-Print Network [OSTI]

??The relationship between stock markets returns, economic growth and oil price volatility has been an issue of considerable debate. While there are many studies showing (more)

Fayyad, Abdallah

2013-01-01T23:59:59.000Z

153

BPA COMMODITY LISTING July 2014 OM/FSS -O= Open Market/F= Federal Supply Bus. Sz. -S= Small Business/O= Other than Small MOL= Maximum Order Limit  

E-Print Network [OSTI]

BPA COMMODITY LISTING July 2014 OM/FSS - O= Open Market/F= Federal Supply Bus. Sz. - S= Small Business/O= Other than Small MOL= Maximum Order Limit B.P.A. # Vendor Name ATTN: Phone # City State/30/2014 O S $25,000.00 #12;BPA COMMODITY LISTING July 2014 B.P.A. # Vendor Name ATTN: Phone # City State

Rau, Don C.

154

BPA COMMODITY LISTING February 2014 OM/FSS -O= Open Market/F= Federal Supply Bus. Sz. -S= Small Business/O= Other than Small MOL= Maximum Order Limit  

E-Print Network [OSTI]

BPA COMMODITY LISTING February 2014 OM/FSS - O= Open Market/F= Federal Supply Bus. Sz. - S= Small Business/O= Other than Small MOL= Maximum Order Limit B.P.A. # Vendor Name ATTN: Phone # City State,000.00 #12;BPA COMMODITY LISTING February 2014 B.P.A. # Vendor Name ATTN: Phone # City State Expiration O

Rau, Don C.

155

BPA COMMODITY LISTING August 2014 OM/FSS -O= Open Market/F= Federal Supply Bus. Sz. -S= Small Business/O= Other than Small MOL= Maximum Order Limit  

E-Print Network [OSTI]

BPA COMMODITY LISTING August 2014 OM/FSS - O= Open Market/F= Federal Supply Bus. Sz. - S= Small Business/O= Other than Small MOL= Maximum Order Limit B.P.A. # Vendor Name ATTN: Phone # City State/30/2014 O S $25,000.00 #12;BPA COMMODITY LISTING August 2014 B.P.A. # Vendor Name ATTN: Phone # City State

Rau, Don C.

156

Volatile Energy Costs and the Floundering Deregulation of Electricity: A  

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

Volatile Energy Costs and the Floundering Deregulation of Electricity: A Volatile Energy Costs and the Floundering Deregulation of Electricity: A Fresh Look at Integrating Supply-Side and Demand-Side Resources Speaker(s): Bill Kelly Robert Redlinger Date: January 19, 2001 - 12:00pm Location: 90-3148 Seminar Host/Point of Contact: Julie Osborn The restructuring of the California electricity industry has not proceeded as intended. A generation capacity shortage, combined with spiraling natural gas costs and a flawed electricity market structure, have led to unprecedented wholesale electricity prices, power outages, and a political and financial crisis for the State. This crisis will not be solved through increasing electricity supply alone. Energy industry observers agree that 1.) energy efficiency, 2.) distributed on-site generation, and 3.) price

157

Comments on Americium Volatilization during Fuel Fabrication for Fast Reactors  

SciTech Connect (OSTI)

The physical processes relevant to the fabrication of metallic and ceramic nuclear fuels are analyzed, with attention to recycling of fuels containing U, Pu, and minor volatile actinides for the use in fast reactors. This analysis is relevant to the development of a process model that can be used for the numerical simulation and prediction of the spatial distribution of composition in the fuel, an important factor in fuel performance.

Sabau, Adrian S [ORNL; Ohriner, Evan Keith [ORNL

2008-01-01T23:59:59.000Z

158

Disco: Running Commodity Operating Systems on Scalable Multiprocessors Proceedings of the 16th Symposium on Operating Systems Principles (SOSP). SaintMalo, France. October 1997.  

E-Print Network [OSTI]

Page 1 Disco: Running Commodity Operating Systems on Scalable Multiprocessors Proceedings of the 16th Symposium on Operating Systems Principles (SOSP). Saint­Malo, France. October 1997. In this paper we examine the problem of extending modern operating systems to run efficiently on large­scale shared

Krishnamurthy, Arvind

159

Page 1Disco: Running Commodity Operating Systems on Scalable Multiprocessors Proceedings of the 16th Symposium on Operating Systems Principles (SOSP). Saint-Malo, France. October 1997.  

E-Print Network [OSTI]

Page 1Disco: Running Commodity Operating Systems on Scalable Multiprocessors Proceedings of the 16th Symposium on Operating Systems Principles (SOSP). Saint-Malo, France. October 1997. In this paper run multiple copies of Silicon Graphics' IRIX operating system on a multiprocessor. Our experience

Han, Richard Y.

160

Volatility of Power Grids under Real-Time Pricing  

E-Print Network [OSTI]

The paper proposes a framework for modeling and analysis of the dynamics of supply, demand, and clearing prices in power system with real-time retail pricing and information asymmetry. Real-time retail pricing is characterized by passing on the real-time wholesale electricity prices to the end consumers, and is shown to create a closed-loop feedback system between the physical layer and the market layer of the power system. In the absence of a carefully designed control law, such direct feedback between the two layers could increase volatility and lower the system's robustness to uncertainty in demand and generation. A new notion of generalized price-elasticity is introduced, and it is shown that price volatility can be characterized in terms of the system's maximal relative price elasticity, defined as the maximal ratio of the generalized price-elasticity of consumers to that of the producers. As this ratio increases, the system becomes more volatile, and eventually, unstable. As new demand response technolo...

Roozbehani, Mardavij; Mitter, Sanjoy K

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Characteristics of the volatile organic compounds -- Arid Integrated Demonstration Site  

SciTech Connect (OSTI)

The Volatile Organic Compounds -- Arid Integrated Demonstration Program (VOC-Arid ID) is targeted at demonstration and testing of technologies for the evaluation and cleanup of volatile organic compounds and associated contaminants at arid DOE sites. The initial demonstration site is an area of carbon tetrachloride (CCl{sub 4}) contamination located near the center of the Hanford Site. The movement of CCl{sub 4} and other volatile organic contaminants in the subsurface is very complex. The problem at the Hanford Site is further complicated by the concurrent discharge of other waste constituents including acids, lard oil, organic phosphates, and transuranic radionuclides. In addition, the subsurface environment is very complex, with large spatial variabilities in hydraulic properties. A thorough understanding of the problem is essential to the selection of appropriate containment, retrieval, and/or in situ remedial technologies. The effectiveness of remedial technologies depends on knowing where the contaminants are, how they are held up in a given physical and chemical subsurface environment; and knowing the physical, chemical, and microbiological changes that are induced by the various remedial technologies.

Last, G.V.; Lenhard, R.J.; Bjornstad, B.N.; Evans, J.C.; Roberson, K.R.; Spane, F.A.; Amonette, J.E.; Rockhold, M.L.

1991-10-01T23:59:59.000Z

162

Volatile organic compound losses from sewage sludge-amended soils  

SciTech Connect (OSTI)

Volatile organic compounds (VOCs) applied to soil in sludge have been assumed to disappear quickly and completely. The VOC behavior in sludge-amended soils has been studied previously only in laboratory systems where the sludged soil has been spiked with compounds of interest. Behavior in these systems may not necessarily represent compound behavior in field soils to which contaminated sludge is added. A series of laboratory microcosm experiments were designed therefore to investigate the behavior of toluene, ethyl benzene, o-, m-, and p-xylene applied to soil in contaminated sludge, and factors influencing loss processes. The VOC loss from sludge-amended soil was well described by a simple one step pseudo-first-order model but in certain soils was better described by a two step first-order model. Volatilization was the predominant loss process. Rates of loss depended on sludge application rate, method of sludge application, soil properties, and on compound characteristics. Experiments indicated that spiking sludge-amended soils gave a reasonable indication of VOC loss rates from systems amended with contaminated sludge at least over a period of 23 d. The majority of VOCs applied to soils in sludge volatilizes quickly to the atmosphere over a few to 10s of days with a small fraction lost more slowly. Potential for VOC crop uptake, livestock ingestion, and contamination of ground water is low under routine, managed applications of sewage sludge to agricultural land.

Wilson, S.C.; Jones, K.C.

1999-08-01T23:59:59.000Z

163

Measurement of Passive Uptake Rates for Volatile Organic Compounds on  

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

Measurement of Passive Uptake Rates for Volatile Organic Compounds on Measurement of Passive Uptake Rates for Volatile Organic Compounds on Commercial Thermal Desorption Tubes and the Effect of Ozone on Sampling Title Measurement of Passive Uptake Rates for Volatile Organic Compounds on Commercial Thermal Desorption Tubes and the Effect of Ozone on Sampling Publication Type Report LBNL Report Number LBNL-6257E Year of Publication 2013 Authors Maddalena, Randy L., Amanda Parra, Marion L. Russell, and Wen-Yee Lee Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords indoor air quality, Passive Sampling, Uptake Rates, vocs Abstract Diffusive or passive sampling methods using commercially filled axial-sampling thermal desorption tubes are widely used for measuring volatile organic compounds (VOCs) in air. The passive sampling method provides a robust, cost effective way to measure air quality with time-averaged concentrations spanning up to a week or more. Sampling rates for VOCs can be calculated using tube geometry and Fick's Law for ideal diffusion behavior or measured experimentally. There is evidence that uptake rates deviate from ideal and may not be constant over time. Therefore, experimentally measured sampling rates are preferred. In this project, a calibration chamber with a continuous stirred tank reactor design and constant VOC source was combined with active sampling to generate a controlled dynamic calibration environment for passive samplers. The chamber air was augmented with a continuous source of 45 VOCs ranging from pentane to diethyl phthalate representing a variety of chemical classes and physiochemical properties. Both passive and active samples were collected on commercially filled Tenax TA thermal desorption tubes over an 11-day period and used to calculate passive sampling rates. A second experiment was designed to determine the impact of ozone on passive sampling by using the calibration chamber to passively load five terpenes on a set of Tenax tubes and then exposing the tubes to different ozone environments with and without ozone scrubbers attached to the tube inlet. During the sampling rate experiment, the measured diffusive uptake was constant for up to seven days for most of the VOCs tested but deviated from linearity for some of the more volatile compounds between seven and eleven days. In the ozone experiment, both exposed and unexposed tubes showed a similar decline in terpene mass over time indicating back diffusion when uncapped tubes were transferred to a clean environment but there was no indication of significant loss by ozone reaction.

164

Development and Characterization of a Thermodenuder for Aerosol Volatility Measurements  

SciTech Connect (OSTI)

This SBIR Phase I project addressed the critical need for improved characterization of carbonaceous aerosol species in the atmosphere. The proposed work focused on the development of a thermodenuder (TD) system capable of systematically measuring volatility profiles of primary and secondary organic aerosol species and providing insight into the effects of absorbing and nonabsorbing organic coatings on particle absorption properties. This work provided the fundamental framework for the generation of essential information needed for improved predictions of ambient aerosol loadings and radiative properties by atmospheric chemistry models. As part of this work, Aerodyne Research, Inc. (ARI) continued to develop and test, with the final objective of commercialization, an improved thermodenuder system that can be used in series with any aerosol instrument or suite of instruments (e.g., aerosol mass spectrometers-AMS, scanning mobility particle sizers-SMPS, photoacoustic absorption spectrometers-PAS, etc.) to obtain aerosol chemical, physical, and optical properties as a function of particle volatility. In particular, we provided the proof of concept for the direct coupling of our improved TD design with a full microphysical model to obtain volatility profiles for different organic aerosol components and to allow for meaningful comparisons between different TD-derived aerosol measurements. In a TD, particles are passed through a heated zone and a denuding (activated charcoal) zone to remove semi-volatile material. Changes in particle size, number concentration, optical absorption, and chemical composition are subsequently detected with aerosol instrumentation. The aerosol volatility profiles provided by the TD will strengthen organic aerosol emission inventories, provide further insight into secondary aerosol formation mechanisms, and provide an important measure of particle absorption (including brown carbon contributions and identification, and absorption enhancements due to coatings on soot particles). The successfully completed Phase I project included construction of a prototype design for the TD with detailed physical modeling, testing with laboratory and ambient aerosol particles, and the initiation of a detailed microphysical model of the aerosol particles passing through the TD to extract vapor pressure distributions. The objective of the microphysical model is to derive vapor pressure distributions (i.e. vapor pressure ranges, including single chemical compounds, mixtures of known compounds, and complex real-world aerosols, such as SOA, and soot particles with absorbing and nonabsorbing coatings) from TD measurements of changes in particle size, mass, and chemical composition for known TD temperatures and flow rates (i.e. residence times). The proposed Phase II project was designed to optimize several TD systems for different instrument applications and to combine the hardware and modeling into a robust package for commercial sales.

Dr. Timothy Onasch

2009-09-09T23:59:59.000Z

165

1 Emerging versus developed volatility indexes. The comparison of VIW20 and VIX index.1  

E-Print Network [OSTI]

Modeling of financial markets volatility is one of the most significant issues of contemporary finance, especially while analyzing high-frequency data. Accurate quantification and forecast of volatility are of immense importance in risk management (VaR models, stress testing and worst case scenario), models of capital market and options valuation techniques. What we show in this paper is the methodology for calculating volatility index for Polish capital market (VIW20 index anticipating expected volatility of WIG20 index). The methods presented are based on VIX index (VIX White Paper, 2003) and enriched with necessary modifications corresponding with the character of Polish options market. Quoted on CBOE, VIX index is currently known as the best measure of capital investment risk perfectly illustrating the level of fear and emotions of market participants. The conception of volatility index is based on combination of realized volatility and implied volatility which, using methodology of Derman et al. (1999) and reconstructing volatility surface, reflects both volatility smile as well as its term structure. The research is carried out using high-frequency data (i.e. tick data) for index options on WIG20 index for the period November 2003- May 2007, in other words, starting with the introduction of options by Warsaw Stock

Robert ?lepaczuk; Grzegorz Zakrzewski

166

Effects of Ethanol and Volatility Parameters on Exhaust Emissions of Light-Duty Vehicles  

E-Print Network [OSTI]

26-28, 2005 THE EFFECTS OF ETHANOL AND VOLATILITY PARAMETERSare changed to include ethanol. While past studies of theincluding many with ethanol, there are some contradictory

Durbin, T; Miller, J W; Huai, T; Cocker III, D R; Younglove, Y

2005-01-01T23:59:59.000Z

167

Vehicular emission of volatile organic compounds (VOCs) from a tunnel study in Hong Kong  

E-Print Network [OSTI]

Chemistry and Physics Vehicular emission of volatile organicY. , and Huang, Y. S. : Emission factors and characteristicslight-duty vehicle emissions, Environ. Sci. Technol. , 30,

2009-01-01T23:59:59.000Z

168

Improvement of SOFC Electrodes through Catalyst Infiltration & Control of Cr Volatilization from FeCr Components  

SciTech Connect (OSTI)

This presentation discusses the improvement of SOFC electrodes through catalyst infiltration and control of Cr volatilization from FeCr components.

Visco, S.J.; Jacobson, C.; Kurokawa, H.; Sholklapper, T.; Lu, C.; De Jonghe, L.

2005-01-28T23:59:59.000Z

169

Essays on the volatility and spillover effects of oil and food price shocks.  

E-Print Network [OSTI]

??This thesis comprises five self contained but related essays on the volatility and spillover effects of oil and food price shocks, making contributions to the (more)

Alom, Fardous

2012-01-01T23:59:59.000Z

170

Stochastic volatility models with persistent latent factors: theory and its applications to asset prices  

E-Print Network [OSTI]

consider the nonlinear nonstationary state-space model given by yt = radicalbig f(xt,?) ut, xt+1 = ?xt +vt+1,(2.1) where I make the following assumptions: Assumption 1: The volatility function is given by (2.2) f(xt,?) = + ?1+exp(??(x t ??)) , where ? = (.... Assumption 2: (xt) is a scalar latent volatility factor and |?| ? 1, I describe the volatility factor, (xt) explicitly in the transition equation because I am interested in the linkage between it and macro economic fundamentals. I assume that this volatility...

Lee, Hyoung Il

2008-10-10T23:59:59.000Z

171

E-Print Network 3.0 - airborne volatile organic Sample Search...  

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

predicting volatile organic concentration levels immediately downwind of wastewater treatment facilities... aeration which is used to increase the purification capacity also...

172

E-Print Network 3.0 - acidos grasos volatiles Sample Search Results  

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

signal that triggers the release of plant volatiles; one or more elicitors from the oral secretion allow Source: Par, Paul W. - Department of Chemistry and Biochemistry, Texas...

173

Oil consumption, pollutant emission, oil proce volatility and economic activities in selected Asian Developing Economies.  

E-Print Network [OSTI]

??It is now well established in the literature that oil consumption, oil price shocks, and oil price volatility may impact the economic activities negatively. Studies (more)

Rafiq, Shuddhasattwa

2009-01-01T23:59:59.000Z

174

Ammonia volatilization from N fertilizers surface applied on bermudagrass  

E-Print Network [OSTI]

- vestigate the feasibility of CaC1 as a urea hydrolysis depressant. Laboratory In a simple nonaerated experiment in air-tight jars, CaCl ad- 2 ditive with urea depressed urea hydrolysis as measured by reduction in NH3 volatilization N loss from 48 to 3...% as a result of inhibiting bio- logical activity. This depression likely resulted from retarded micro- bial activity because CaC12 salt induced high osmotic pressure. In an aerated experiment which circulated air over treated soil, more similar...

Panossian, Jack B.

1980-01-01T23:59:59.000Z

175

Effect of Outside Air Ventilation Rate on Volatile Organic Compound  

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

Outside Air Ventilation Rate on Volatile Organic Compound Outside Air Ventilation Rate on Volatile Organic Compound Concentrations in a Call Center Title Effect of Outside Air Ventilation Rate on Volatile Organic Compound Concentrations in a Call Center Publication Type Journal Article Year of Publication 2003 Authors Hodgson, Alfred T., David Faulkner, Douglas P. Sullivan, Dennis L. DiBartolomeo, Marion L. Russell, and William J. Fisk Journal Atmospheric Environment Volume 37 Start Page Chapter Pagination 5517-5528 Abstract A study of the relationship between outside air ventilation rate and concentrations of volatile organic compounds (VOCs) generated indoors was conducted in a call center office building. The building, with two floors and a floor area of 4,600 m2, was located in the San Francisco Bay Area, CA. Ventilation rates were manipulated with the building's four air handling units (AHUs). VOC concentrations in the AHU returns were measured on seven days during a 13-week period. VOC emission factors were determined for individual zones on days when they were operating at near steady-state conditions. The emission factor data were subjected to principal component (PC) analysis to identify groups of co-varying compounds. Potential sources of the PC vectors were ascribed based on information from the literature supporting the associations. Two vectors with high loadings of compounds including formaldehyde, 2,2,4-trimethyl-1,3- pentanediol monoisobutyrate, decamethylcyclopentasiloxane (d5 siloxane), and isoprene likely identified occupant-related sources. One vector likely represented emissions from building materials. Another vector represented emissions of solvents from cleaning products. The relationships between indoor minus outdoor VOC concentrations and ventilation rate were qualitatively examined for eight VOCs. Of these, acetaldehyde and hexanal, which were likely associated with material sources, and d5 siloxane exhibited general trends of higher concentrations at lower ventilation rates. For other compounds, the operation of the building and variations in pollutant generation and removal rates apparently combined to obscure the inverse relationship between VOC concentrations and ventilation. This result emphasizes the importance of utilizing source control measures, in addition to adequate ventilation, to limit concentrations of VOCs of concern in office buildings

176

CACI: The Cesium-137 Agricultural Commodities Irradiator. Final design report: Volume 7, Safety analysis, thermal analysis, and thermal testing  

SciTech Connect (OSTI)

This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE`s Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This volume, Volume VII, describes Safety Analysis, Thermal Analysis, and Thermal Testing.

Not Available

1986-12-19T23:59:59.000Z

177

New Soil Volatile Organic Compound Samplers U S  

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

Soil Volatile Organic Soil Volatile Organic Compound Samplers U . S . D e p a r t m e n t o f E n e r g y * O f f i c e o f F o s s i l E n e r g y N a t i o n a l E n e r g y T e c h n o l o g y L a b o r a t o r y Successes AdvAnced ReseARch To support coal and power systems development, NETL's Advanced Research Program conducts a range of pre-competitive research focused on breakthroughs in materials and processes, coal utilization science, sensors and controls, computational energy science, and bioprocessing-opening new avenues to gains in power plant efficiency, reliability, and environmental quality. NETL also sponsors cooperative educational initiatives in University Coal Research, Historically Black Colleges and Universities, and Other Minority Institutions. Accomplishments P Process improvement P Cost reduction P Greater efficiency

178

Volatility-- a statistical comparison between the secondary and primary home markets : the lower Cape's volatility and average return compared to three Boston area primary markets  

E-Print Network [OSTI]

This thesis attempts to analyze the long-standing perception that the secondary home market, homes built in and around vacation areas, is more volatile than the primary home market. For the first time, this study measures ...

Knight, Craig, 1971-

2003-01-01T23:59:59.000Z

179

ORIGINAL ARTICLE Differential volatile emissions and salicylic acid levels from tobacco  

E-Print Network [OSTI]

pv. tabaci (Pstb), with tobacco plants resulted in a different volatile blend, consisting of MeORIGINAL ARTICLE Differential volatile emissions and salicylic acid levels from tobacco plants / Published online: 24 April 2003 ? Springer-Verlag 2003 Abstract Pathogen-induced plant responses include

Raina, Ramesh

180

Intra-daily variations in volatility and transaction costs in the Credit Default Swap market  

E-Print Network [OSTI]

Intra-daily variations in volatility and transaction costs in the Credit Default Swap market Andras : Credit Default Swap, Intra-daily patterns, Stochastic transaction costs, Volatility, Interdealer market on the Microstructure of Financial Markets in Hong Kong, the 2008 Credit conference in Venice, the Third Annual Risk

Del Moral , Pierre

Note: This page contains sample records for the topic "volatility iif commodities" 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

A Gaussian Approximation Scheme for Computation of Option Prices in Stochastic Volatility Models 1  

E-Print Network [OSTI]

perform well on simulated joint price and options data that follow the log-linear stocastic volatility of Mathematics University of Alabama Tuscaloosa AL, 35487-0350. February 2007 1Research supported by National process that follows the log-linear stochastic volatil- ity model. There are three stochastic integrals

Ji, Chuanshu

182

Opportunities for reducing volatile organic compound emissions in manufacturing office furniture partitions: a feasibility analysis  

Science Journals Connector (OSTI)

A feasibility analysis is reported of reduction opportunities for volatile organic compound (VOC) emissions in manufacturing office furniture partitions. The pollution prevention (P2) methodology as defined by the Ontario Ministry of the Environment ... Keywords: emissions, manufacturing, office furniture, pollution prevention, volatile organic compound

Frank S. Luisser; Marc A. Rosen

2009-02-01T23:59:59.000Z

183

System for loading executable code into volatile memory in a downhole tool  

DOE Patents [OSTI]

A system for loading an executable code into volatile memory in a downhole tool string component comprises a surface control unit comprising executable code. An integrated downhole network comprises data transmission elements in communication with the surface control unit and the volatile memory. The executable code, stored in the surface control unit, is not permanently stored in the downhole tool string component. In a preferred embodiment of the present invention, the downhole tool string component comprises boot memory. In another embodiment, the executable code is an operating system executable code. Preferably, the volatile memory comprises random access memory (RAM). A method for loading executable code to volatile memory in a downhole tool string component comprises sending the code from the surface control unit to a processor in the downhole tool string component over the network. A central processing unit writes the executable code in the volatile memory.

Hall, David R. (Provo, UT); Bartholomew, David B. (Springville, UT); Johnson, Monte L. (Orem, UT)

2007-09-25T23:59:59.000Z

184

Using futures prices to filter short-term volatility and recover a latent, long-term price series for oil  

E-Print Network [OSTI]

Oil prices are very volatile. But much of this volatility seems to reflect short-term,transitory factors that may have little or no influence on the price in the long run. Many major investment decisions should be guided ...

Herce, Miguel Angel

2006-01-01T23:59:59.000Z

185

Formaldehyde and Other Volatile Organic Chemical Emissions in Four FEMA  

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

Formaldehyde and Other Volatile Organic Chemical Emissions in Four FEMA Formaldehyde and Other Volatile Organic Chemical Emissions in Four FEMA Temporary Housing Units Title Formaldehyde and Other Volatile Organic Chemical Emissions in Four FEMA Temporary Housing Units Publication Type Journal Article Year of Publication 2009 Authors Maddalena, Randy L., Marion L. Russell, Douglas P. Sullivan, and Michael G. Apte Journal Environmental Science and Technology Volume 43 Start Page Chapter Pagination 5626-5632 Publisher Lawrence Berkeley National Laboratory Abstract Four unoccupied FEMA temporary housing units (THUs) were studied to assess their indoor emissions of volatile organic compounds including formaldehyde. Measurement of whole-THUVOC and aldehyde emission factors (µg h-1 per m2 of floor area) for each of the four THUs were made at FEMA's Purvis MS staging yard using a mass balance approach. Measurements were made in the morning, and again in the afternoon in each THU. Steady-state indoor formaldehydeconcentrations ranged from 378 µg m-3 (0.31ppm) to 632 µg m-3 (0.52 ppm) in the AM, and from 433 µg m-3 (0.35 ppm) to 926 µg m-3 (0.78 ppm) in the PM. THU air exchange rates ranged from 0.15 h-1 to 0.39 h-1. A total of 45 small (approximately 0.025 m2) samples of surface material, 16 types, were collected directly from the four THUs and shipped to Lawrence Berkeley Laboratory. The material samples were analyzed for VOC and aldehyde emissions in small stainless steel chambers using a standard, accurate mass balance method. Quantification of VOCs was done via gas chromatography - mass spectrometry and low molecular weight aldehydes via high performance liquid chromatography. Material specific emission factors (µg h-1 per m2 of material) were quantified. Approximately 80 unique VOCs were tentatively identified in the THU field samples, of which forty-five were quantified either because of their toxicological significance or because their concentrations were high. Whole-trailer and materialspecific emission factors were calculated for 33 compounds. The THU emission factors and those from their component materials were compared against those measured from other types of housing and the materials used in their construction. Whole THU emission factors for most VOCs were typically similar to those from comparative housing. The three exceptions were exceptionally large emissions of formaldehyde and TMPD-DIB (a common plasticizer in vinyl products), and somewhat elevated for phenol. Of these three compounds, formaldehyde was theonly one with toxicological significance at the observed concentrations. Whole THU formaldehyde emissions ranged from 173 to 266 µg m-2 h-1 in the morning and 257 to 347 µg m-2 h-1 in the afternoon. Median formaldehyde emissions in previously studied site-built and manufactured homes were 31 and 45 µg m-2 h-1, respectively. Only one of the composite wood materials that was tested appeared to exceed the HUD formaldehyde emission standard (430 µg/m2 h-1 for particleboard and 130 µg/m2 h-1 for plywood). The high loading factor (materialsurface area divided by THU volume) of composite wood products in the THUs and the low fresh air exchange relative to the material surface area may be responsible for the excessive concentrations observed for some of the VOCs and formaldehyde

186

In-Situ Containment and Extraction of Volatile Soil Contaminants  

DOE Patents [OSTI]

The invention relates to a novel approach to containing and removing toxic waste from a subsurface environment. More specifically the present invention relates to a system for containing and removing volatile toxic chemicals from a subsurface environment using differences in surface and subsurface pressures. The present embodiment generally comprises a deep well, a horizontal tube, at least one injection well, at least one extraction well and a means for containing the waste within the waste zone (in-situ barrier). During operation the deep well air at the bottom of well (which is at a high pressure relative to the land surface as well as relative to the air in the contaminated soil) flows upward through the deep well (or deep well tube). This stream of deep well air is directed into the horizontal tube, down through the injection tube(s) (injection well(s)) and into the contaminate plume where it enhances volatization and/or removal of the contaminants.

Varvel, Mark Darrell

2005-12-27T23:59:59.000Z

187

Detection of volatile organic compounds using surface enhanced Raman scattering  

SciTech Connect (OSTI)

The authors present the detection of volatile organic compounds directly in their vapor phase by surface-enhanced Raman scattering (SERS) substrates based on lithographically-defined two-dimensional rectangular array of nanopillars. The type of nanopillars is known as the tapered pillars. For the tapered pillars, SERS enhancement arises from the nanofocusing effect due to the sharp tip on top. SERS experiments were carried out on these substrates using various concentrations of toluene vapor. The results show that SERS signal from a toluene vapor concentration of ppm level can be achieved, and the toluene vapor can be detected within minutes of exposing the SERS substrate to the vapor. A simple adsorption model is developed which gives results matching the experimental data. The results also show promising potential for the use of these substrates in environmental monitoring of gases and vapors.

Chang, A S; Maiti, A; Ileri, N; Bora, M; Larson, C C; Britten, J A; Bond, T C

2012-03-22T23:59:59.000Z

188

Bioorganic nanodots for non-volatile memory devices  

SciTech Connect (OSTI)

In recent years we are witnessing an intensive integration of bio-organic nanomaterials in electronic devices. Here we show that the diphenylalanine bio-molecule can self-assemble into tiny peptide nanodots (PNDs) of ?2 nm size, and can be embedded into metal-oxide-semiconductor devices as charge storage nanounits in non-volatile memory. For that purpose, we first directly observe the crystallinity of a single PND by electron microscopy. We use these nanocrystalline PNDs units for the formation of a dense monolayer on SiO{sub 2} surface, and study the electron/hole trapping mechanisms and charge retention ability of the monolayer, followed by fabrication of PND-based memory cell device.

Amdursky, Nadav; Shalev, Gil; Handelman, Amir; Natan, Amir; Rosenwaks, Yossi [School of Electrical Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978 (Israel); Litsyn, Simon; Szwarcman, Daniel; Rosenman, Gil, E-mail: rgil@post.tau.ac.il [School of Electrical Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978 (Israel); StoreDot LTD, 16 Menahem Begin St., Ramat Gan (Israel); Roizin, Yakov [School of Electrical Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978 (Israel); TowerJazz, P.O. Box 619, Migdal HaEmek 23105 (Israel)

2013-12-01T23:59:59.000Z

189

COMMODITIES USED BY WIPP  

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

? Chemicals and Solvents ? Clocks, Timers, Watches ? Clothing Apparel & Uniforms, ShoesBoots ? Communications & Media Related Services ? Computers, Accessories & Supplies ?...

190

Ethanol as Internal Standard for Quantitative Determination of Volatile Compounds in Spirit Drinks by Gas Chromatography  

E-Print Network [OSTI]

The new methodical approach of using ethanol as internal standard in gas chromatographic analysis of volatile compounds in spirit drinks in daily practice of testing laboratories is proposed. This method provides determination of volatile compounds concentrations in spirit drinks directly expressed in milligrams per liter (mg/L) of absolute alcohol according to official methods without measuring of alcohol strength of analyzed sample. The experimental demonstration of this method for determination of volatile compounds in spirit drinks by gas chromatography is described. Its validation was carried out by comparison with experimental results obtained by internal standard method and external standard method.

Charapitsa, Siarhei V; Kulevich, Nikita V; Makoed, Nicolai M; Mazanik, Arkadzi L; Sytova, Svetlana N

2012-01-01T23:59:59.000Z

191

Digestion and rumen volatile fatty acid production by heifers fed reconstituted sorghum grain  

E-Print Network [OSTI]

ce oE M. STER OF SCIENCE January 1969 major Sub dace: Anbmal Science DIGESTION AND RlRCEN VOLATILE FATTY ACE) PRODUCTION BY REIZERS . "~ RECONSTITUTED SCRCEWI GRAIN A Tbests EDUARDO J. FA'is'I XM Approved as to s /le and oontent by...) Appendix 'cable Page Analyses of Variance of Volatile Patty Acids in liicrnno~es/Ill& liliter of Bmaen PluM Analyses of Variance of Nolo Percent Volatile Patty Acids in Ruraen gamples A9 CHAPTER I INTRODUCTION Sorghum grain i. s the principal...

Pantin, Eduardo Jose

1969-01-01T23:59:59.000Z

192

Effect of Milk Protein Concentrate on Lipid Oxidation and Formation of Fishy Volatiles in Herring Mince ( Clupea harengus) during Frozen Storage  

Science Journals Connector (OSTI)

Sensory evaluation was also conducted to assess the intensity of fishy odor, and the volatiles were analyzed using static headspace gas chromatographymass spectrometry (SHGC-MS). ... Volatile analysis using SHGC-MS showed that 4% MPC was able to reduce headspace volatiles associated with fishy odor. ... Herring mince; SHGC-MS; lipid oxidation; fishy volatiles; fatty acids ...

H. J. F. Joaquin; S. Tolasa; A. C. M. Oliveira; C. M. Lee; K. H. Lee

2007-12-01T23:59:59.000Z

193

Trapping of volatiles in amorphous water ice. R. M. E. Mastrapa , R. H. Brown  

E-Print Network [OSTI]

were re- leased into the sample chamber at the same pressure as the water, measurements will be taken with a solar system composition gas with the proper ratios of water to volatile. References: [1] Bar-Nun, A., G

Cohen, Barbara Anne

194

E-Print Network 3.0 - aqueous volatile organic Sample Search...  

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

51 SEDIMENT-TO-AIR MASS TRANSFER OF SEMI-VOLATILE CONTAMINANTS DUE TO SEDIMENT RESUSPENSION IN WATER Summary: @lsuvm.sncc.lsu.edu ABSTRACT Experiments were conducted to...

195

Sensitivity of Investor Reaction to Market Direction and Volatility: The Case of Dividend Change Announcements  

E-Print Network [OSTI]

This study examines whether investor reactions are sensitive to the recent direction and/or volatility of underlying market movements. We find dividend change announcements elicit a greater change in stock price when the ...

Koch, Paul D.; Docking, Diane Scott

2004-02-01T23:59:59.000Z

196

Options introduction and volatility in the EU ETS1 Julien Chevallier 2  

E-Print Network [OSTI]

in the European Union Emissions Trading Scheme (EU ETS), the European Climate Exchange (ECX) has introduced option the introduction of options has increased or decreased volatility in the European Union Emissions Trading Sc

Paris-Sud XI, Université de

197

Volatile liquid hydrocarbon characterization of underwater hydrocarbon vents and formation waters from offshore production operations  

Science Journals Connector (OSTI)

Volatile liquid hydrocarbon characterization of underwater hydrocarbon vents and formation waters from offshore production operations ... The environmental implications of offshore oil and gas activities ... The environmental implications of offshore oil and gas activities ...

Theodor C. Sauer

1981-08-01T23:59:59.000Z

198

The Volatility and the Thermal Storage Performance of Binary Polyalcohol Systems Used in the Wall  

E-Print Network [OSTI]

In this paper, the volatility of binary systems, consisting of neopentylglycol(NPG), pentaerythritol(PE) and trihytdroxy methyl-aminomethane(TAM) with different components, was studied experimentally. In the solid -solid phase change process...

Yan, Q.

2006-01-01T23:59:59.000Z

199

Electrospun Polyurethane Fibers for Absorption of Volatile Organic Compounds from Air  

E-Print Network [OSTI]

Electrospun polyurethane fibers for removal of volatile organic compounds (VOC) from air with rapid VOC absorption and desorption have been developed. Polyurethanes based on 4,4-methylenebis(phenylisocyanate) (MDI) and ...

Scholten, Elke

200

Measurements of Volatile Organic Compounds Using Proton Transfer Reaction - Mass Spectrometry during the MILAGRO 2006 Campaign  

E-Print Network [OSTI]

Volatile organic compounds (VOCs) were measured by proton transfer reaction mass spectrometry (PTR-MS) on a rooftop in the urban mixed residential and industrial area North Northeast of downtown Mexico City as part of ...

Fortner, E. C.

Note: This page contains sample records for the topic "volatility iif commodities" 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

Chain hotels versus independent hotels : an analysis of branding, room revenue & volatility  

E-Print Network [OSTI]

This thesis analyzes the historical performance of chain-affiliated hotels and independent (non-affiliated) hotels with an emphasis on the volatility of room revenues. The thesis attempts to prove or disprove the hypothesis ...

Langlois, Tyler J. (Tyler Joseph), 1974-

2003-01-01T23:59:59.000Z

202

Comparison of Two ARMA-GARCH Approaches for Forecasting the Mean and Volatility of Wind Speed  

Science Journals Connector (OSTI)

In this study, we develop two ARMA-GARCH models for predicting the mean and volatility of wind speed. The first model employs the standalone ARMA-GARCH model for modeling the mean wind speed and the variance simu...

Ergin Erdem; Jing Shi; Ying She

2014-01-01T23:59:59.000Z

203

Volatile organic compound monitoring by photo acoustic radiometry  

SciTech Connect (OSTI)

Two methods for sampling and analyzing volatile organics in subsurface pore gas were developed for use at the Hazardous Waste Disposal Site at Los Alamos National Laboratory. One is Thermal Desorption Gas Chromatography Mass Spectrometry (TDGCMS), the other is Photoacoustic Radiometry (PAR). Presented here are two years worth of experience and lessons learned as both techniques matured. The sampling technique is equally as important as the analysis method. PAR is a nondispersive infrared technique utilizing band pass filters in the region from 1 to 15 {mu}m. A commercial instrument, the Model 1302 Multigas Analyzer, made by Bruel and Kjaer, was adapted for field use. To use the PAR there must be some a priori knowledge of the constellation of analytes to be measured. The TDGCMS method is sensitive to 50 analytes. Hence TDGCMS is used in an initial survey of the site to determine what compounds are present and at what concentration. Once the major constituents of the soil-gas vapor plume are known the PAR can be configured to monitor for the five analytes of most interest. The PAR can analyse a sample in minutes, while in the field. The PAR is also quite precise in controlled situations.

Sollid, J.E.; Trujillo, V.L.; Limback, S.P.; Woloshun, K.A.

1995-12-01T23:59:59.000Z

204

Architectural Techniques For Managing Non-volatile Caches  

SciTech Connect (OSTI)

As chip power dissipation becomes a critical challenge in scaling processor performance, computer architects are forced to fundamentally rethink the design of modern processors and hence, the chip-design industry is now at a major inflection point in its hardware roadmap. The high leakage power and low density of SRAM poses serious obstacles in its use for designing large on-chip caches and for this reason, researchers are exploring non-volatile memory (NVM) devices, such as spin torque transfer RAM, phase change RAM and resistive RAM. However, since NVMs are not strictly superior to SRAM, effective architectural techniques are required for making them a universal memory solution. This book discusses techniques for designing processor caches using NVM devices. It presents algorithms and architectures for improving their energy efficiency, performance and lifetime. It also provides both qualitative and quantitative evaluation to help the reader gain insights and motivate them to explore further. This book will be highly useful for beginners as well as veterans in computer architecture, chip designers, product managers and technical marketing professionals.

Mittal, Sparsh [ORNL] ORNL

2013-01-01T23:59:59.000Z

205

Identification and evaluation of volatile compounds associated with vacuum and modified atmosphere packaged fresh red meats  

E-Print Network [OSTI]

with Lacrobacillus planrarum or Leuconostoc mesenteroides and stored for 28 days at 3'C included acetone, toluene, acetic acid, ethyl acetate, a hydrocarbon and CHCls. The profile of volatiles in packaged sterile loin tissue stored for 28 days was very similar.... , 1979, 1983; Vanderzant et al. , 1986). ~Although many studies have reported these off-odors, very little published information exists relative to the nature of the volatile aroma compounds which result from microbial or enzymatic activity during...

Jackson, Timothy Court

1989-01-01T23:59:59.000Z

206

Influence of Prefermentative Treatments to the Major Volatile Compounds of Assyrtiko Wines  

Science Journals Connector (OSTI)

Quantification of the major volatile compounds was realized developing a rapid analytical method based on fractionation of a 50 mL wine aliquot using C18-reversed phase adsorbent. ... The method allows satisfactory determination of more than 15 volatile compounds of wine. ... The method was applied to wines produced by Assyrtiko grapes (AOC Santorini), for two consecutive years, to compare the effect of skin contact prior to fermentation and the must clarification process. ...

Despina Kechagia; Yannis Paraskevopoulos; Eleni Symeou; Maria Galiotou-Panayotou; Yorgos Kotseridis

2008-05-24T23:59:59.000Z

207

The performance of a volatile oil reservoir overlain by a gas cap  

E-Print Network [OSTI]

THE PERFORMANCE OF A VOLATILE OIL RESERVOIR OVERLAIN BY A GAS CAP A Thesis By J. RALPH ELLIS, JR. 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 August, 1960 Major Subject: PETROLEUM ENGINEERING THE PERFORMANCE OF A VOLATILE OIL RESERVOIR OVERLAIN BY A GAS CAP A Thesis By J. RALPH ELLIS, JR. Approved as to style and content by: hairxnan of Coxnxnittee) (Head...

Ellis, Joseph Ralph, Jr

2012-06-07T23:59:59.000Z

208

Sorption and permeation of low molecular weight volatile compounds in polypropylene  

E-Print Network [OSTI]

SORPTION AND PERMEATION OP LOW MOLECULAR WEIGHT VOLATILE COMPOUNDS IN POLYPROPYLENE A Thesis by ANTONIO RAMIRO SANTIAGO VIDAL JUNIOR 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 1991 Major Subject: Mechanical Engineering SORPTION AND PERMEATION OF LOW MOLECULAR WEIGHT VOLATILE COMPOUNDS IN POLYPROPYLENE A Thesis by ANTONIO RAMIRO SANTIAGO VIDAL JUNIOR Approved...

Vidal, Antonio Ramiro Santiago

2012-06-07T23:59:59.000Z

209

Determination of Migration Parameters for Volatile Organic Compounds in Polyethylene Terephthalate and Nylon 6 by Dynamic Permeation Cell Method  

E-Print Network [OSTI]

Determination of Migration Parameters for Volatile Organic Compounds in Polyethylene Terephthalate, such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polypropylene (PP); however

Heller, Barbara

210

Oxidation and Volatilization from Tungsten Brush High Heat Flux Armor During High Temperature Steam Exposure  

SciTech Connect (OSTI)

Tungsten brush accommodates thermal stresses and high heat flux in fusion reactor components such as plasma facing surfaces or armor. However, inherently higher surface areas are introduced with the brush design. We have tested a specific design of tungsten brush in steam between 500 and 1100C. Hydrogen generation and tungsten volatilization rates were determined to address fusion safety issues. The brush prepared from 3.2-mm diameter welding rods had a packing density of 85 percent. We found that both hydrogen generation and tungsten volatilization from brush, fixtured to represent a unit within a larger component, were less than projections based upon the total integrated surface area (TSA). Steam access and the escape of hydrogen and volatile oxide from void spaces within the brush are restricted compared to specimens with more direct diffusion pathways to the test environment. Hydrogen generation rates from restrained specimens based on normal surface area (NSA) remain about five times higher than rates based on total surface areas from specimens with direct steam access. Volatilization rates from restrained specimens based upon normal surface area (NSA) were only 50 percent higher than our historic cumulative maximum flux plot (CMFP) for tungsten. This study has shown that hydrogen generation and tungsten volatilization from brush do not scale according to predictions with previously determined rates, but in fact, with higher packing density could approach those from flat surfaces.

Smolik, Galen Richard; Pawelko, Robert James; Anderl, Robert Andrew; Petti, David Andrew

2000-05-01T23:59:59.000Z

211

Volatile Organic Compound Investigation Results, 300 Area, Hanford Site, Washington  

SciTech Connect (OSTI)

Unexpectedly high concentrations of volatile organic compounds (VOC) were discovered while drilling in the unconfined aquifer beneath the Hanford Sites 300 Area during 2006. The discovery involved an interval of relatively finer-grained sediment within the unconfined aquifer, an interval that is not sampled by routine groundwater monitoring. Although VOC contamination in the unconfined aquifer has been identified and monitored, the concentrations of newly discovered contamination are much higher than encountered previously, with some new results significantly higher than the drinking water standards. The primary contaminant is trichloroethene, with lesser amounts of tetrachloroethene. Both chemicals were used extensively as degreasing agents during the fuels fabrication process. A biological degradation product of these chemicals, 1,2-dichloroethene, was also detected. To further define the nature and extent of this contamination, additional characterization drilling was undertaken during 2007. Four locations were drilled to supplement the information obtained at four locations drilled during the earlier investigation in 2006. The results of the combined drilling indicate that the newly discovered contamination is limited to a relatively finer-grained interval of Ringold Formation sediment within the unconfined aquifer. The extent of this contamination appears to be the area immediately east and south of the former South Process Pond. Samples collected from the finer-grained sediment at locations along the shoreline confirm the presence of the contamination near the groundwater/river interface. Contamination was not detected in river water that flows over the area where the river channel potentially incises the finer-grained interval of aquifer sediment. The source for this contamination is not readily apparent. A search of historical documents and the Hanford Waste Information Data System did not provide definitive clues as to waste disposal operations and/or spills that might have resulted in groundwater contamination in this sediment, although several relatively small accidental releases of VOCs have occurred in the past in the northern portion of the 300 Area. It is likely that large quantities of degreasing solutions were disposed to the North and South Process Ponds during the 1950s and 1960s, and that evidence for them in the upper portion of the unconfined aquifer has been removed because of groundwater movement through the much more transmissive sediment. Also, investigations to date have revealed no evidence to suggest that a dense, non-aqueous phase liquid remains undetected in the subsurface. Potential pathways for contamination to migrate from this finer-grained sediment include groundwater movement through the interval to offshore locations in the Columbia River channel, dispersion out of the finer-grained interval into the overlying transmissive sediment (again, with transport to the riverbed), and potential future withdrawal via water supply wells.

Peterson, Robert E.; Williams, Bruce A.; Smith, Ronald M.

2008-07-07T23:59:59.000Z

212

New Approach to Assess Volatile Contamination in Vadose Zone Provides Path  

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

Approach to Assess Volatile Contamination in Vadose Zone Approach to Assess Volatile Contamination in Vadose Zone Provides Path Forward for Site Closure New Approach to Assess Volatile Contamination in Vadose Zone Provides Path Forward for Site Closure April 24, 2012 - 12:00pm Addthis Conceptual site model for evaluating soil vapor extraction system performance to determine if the system should be optimized, terminated, or transitioned to another approach. Conceptual site model for evaluating soil vapor extraction system performance to determine if the system should be optimized, terminated, or transitioned to another approach. RICHLAND, Wash. and LOS ALAMOS, N.M. - Through the Deep Vadose Zone-Applied Field Research Initiative (DVZ-AFRI), scientists and engineers from Pacific Northwest National Laboratory, CH2M HILL Plateau Remediation

213

Volatility of HCl and the thermodynamics of brines during brine dryout  

SciTech Connect (OSTI)

Laboratory measurements of liquid-vapor partitioning (volatility) of chlorides from brines to steam can be used to indicate the potential for corrosion problems in geothermal systems. Measurements of volatilities of solutes in chloride brines have established a possible mechanism for the production of high-chloride steam from slightly acidic high temperature brines. Questions concerning the fate of NaCl in the steam production process have been addressed through extensive measurements of its volatility from brines ranging in concentration from dilute solutions to halite saturation. Recent measurements of chloride partitioning to steam over brines in contact with Geysers rock samples are consistent with our concept of the process for production of high-chloride steam.

Simonson, J.M.; Palmer, D.A.

1997-04-01T23:59:59.000Z

214

Price volatility forecasting using artificial neural networks in emerging electricity markets  

Science Journals Connector (OSTI)

In the adaptive short-term electricity price forecasting, it may be premature to rely solely on the hourly price forecast. The volatility of electricity price should also be analysed to provide additional insight on price forecasting. This paper proposes a price volatility module to analyse electricity price spikes and study the probability distribution of electricity price. Two methods are used to study the probability distribution of electricity price: the analytical method and the ANN method. Furthermore, ANN method is used to study the impact of line limits, line outages, generator outages, load pattern and bidding strategy on short term price forecasting, in addition to sensitivity analysis to determine the extent to which these factors impact price forecasting. Data used in this study are spot electricity prices from California market in the period which includes the crisis months where extreme volatility was observed.

Ahmad F. Al-Ajlouni; Hatim Y. Yamin; Ali Eyadeh

2012-01-01T23:59:59.000Z

215

Size-Dependent Mixing Characteristics of Volatile and Nonvolatile Components in Diesel Exhaust Aerosols  

Science Journals Connector (OSTI)

Size-Dependent Mixing Characteristics of Volatile and Nonvolatile Components in Diesel Exhaust Aerosols ... Diesel exhaust particles that were size-selected in the first DMA were passed through the heater, and the change in particle size due to loss of volatile components was determined by the second DMA. ... Diesel exhaust particles are attracting significant attention with regards to their potential health effects (7?9) since they can be formed in high concentrations as ultrafine particles and can contain high levels of organic compounds and soot. ...

Hiromu Sakurai; Kihong Park; Peter H. McMurry; Darrick D. Zarling; David B. Kittelson; Paul J. Ziemann

2003-10-29T23:59:59.000Z

216

Market-oriented ethanol and corn-trade policies can reduce climate-induced US corn price volatility  

Science Journals Connector (OSTI)

Agriculture is closely affected by climate. Over the past decade, biofuels have emerged as another important factor shaping the agricultural sector. We ask whether the presence of the US ethanol sector can play a role in moderating increases in US corn price variability, projected to occur in response to near-term global warming. Our findings suggest that the answer to this question depends heavily on the underlying forces shaping the ethanol industry. If mandate-driven, there is little doubt that the presence of the corn-ethanol sector will exacerbate price volatility. However, if market-driven, then the emergence of the corn-ethanol sector can be a double-edged sword for corn price volatility, possibly cushioning the impact of increased climate driven supply volatility, but also inheriting volatility from the newly integrated energy markets via crude oil price fluctuations. We find that empirically the former effect dominates, reducing price volatility by 27%. In contrast, mandates on ethanol production increase future price volatility by 54% in under future climate after 2020. We also consider the potential for liberalized international corn trade to cushion corn price volatility in the US. Our results suggest that allowing corn to move freely internationally serves to reduce the impact of near-term climate change on US corn price volatility by 8%.

Monika Verma; Thomas Hertel; Noah Diffenbaugh

2014-01-01T23:59:59.000Z

217

The impact of acetate metabolism on yeast fermentative performance and wine quality: reduction of volatile acidity of grape musts and wines  

Science Journals Connector (OSTI)

Acetic acid is the main component of the volatile acidity of grape musts and wines. It can be formed as a by ... bacteria, which can metabolize residual sugars to increase volatile acidity. Acetic acid has a nega...

Alice Vilela-Moura; Dorit Schuller

2011-01-01T23:59:59.000Z

218

Boron Volatilization and Its Isotope Fractionation during Evaporation of Boron Solution  

Science Journals Connector (OSTI)

Evaporation experiments were undertaken to determine the volatility of parts-per-million concentrations of boron in water and dilute HCl in the presence and absence of equimolar mannitol and/or cesium. Multiple 10 mL aliquots prepared identically were ...

Y. K. Xiao; R. D. Vocke, Jr.; G. H. Swihart; Y. Xiao

1997-12-15T23:59:59.000Z

219

Separation and Volatility of Locational Marginal Prices in Restructured Wholesale Power Markets  

E-Print Network [OSTI]

Test Bed I. INTRODUCTION THE wholesale power market design proposed by the U.S. Federal Energy1 Separation and Volatility of Locational Marginal Prices in Restructured Wholesale Power Markets (LMPs) in an ISO-managed restructured wholesale power market operating over an AC transmission grid

Tesfatsion, Leigh

220

Plant Odor Analysis of Potato: Response of Guatemalan Moth to Above- and Belowground Potato Volatiles  

Science Journals Connector (OSTI)

Plant Odor Analysis of Potato: Response of Guatemalan Moth to Above- and Belowground Potato Volatiles ... Potatoes were planted in fertilized and limed peat soil (NPK 180:90:195 g/m3; Hydro Agri AB, Landskrona, Sweden) in 5-L plastic pots. ...

Miriam Frida Karlsson; Gran Birgersson; Alba Marina Cotes Prado; Felipe Bosa; Marie Bengtsson; Peter Witzgall

2009-06-04T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Auto-correlated behavior of WTI crude oil volatilities: A multiscale perspective  

Science Journals Connector (OSTI)

In this paper, we investigate the long-range auto-correlated behavior of WTI crude oil volatility series employing multifractal detrended fluctuation analysis. Our findings show that the for small time scales, the auto-correlations of volatilities were multifractal while for large time scales, the auto-correlations were nearly monofractal. Based on multiscale analysis, we also investigate the dynamics of auto-correlations for different intervals of time scales and find that several shocks could make significant effects on the auto-correlated behaviors for small time scales. Analyzing the dynamics of multifractality degrees of auto-correlations for small time scales, we find that the stronger auto-correlations were always related to the lower degrees of multifractality. At last, we have discussions on the determination factors of price behavior, the predictive implications of scaling behavior in volatilities for oil markets and the reasons why long-range auto-correlations of volatility were always strong for both small time scales and large time scales. Our results are very important theoretically and practically.

Yudong Wang; Yu Wei; Chongfeng Wu

2010-01-01T23:59:59.000Z

222

A Tree's Response to Herbivory: Quantification of Biogenic Volatile Organic Compound Emissions  

E-Print Network [OSTI]

A Tree's Response to Herbivory: Quantification of Biogenic Volatile Organic Compound Emissions an abundant source of Secondary Organic Aerosols (SOA). These emissions are known to vary in quantity and composition due to both biogenic and anthropogenic stressors. In this study, BVOC emissions from bristlecone

Collins, Gary S.

223

LETTER doi:10.1038/nature13032 A large source of low-volatility secondary  

E-Print Network [OSTI]

of atmospheric aerosol1,2 , which is known to affect the Earth's radi- ation balance by scattering solar radiation and by acting as cloud condensation nuclei3 . The quantitative assessment of such climate abundant, essentially non- volatile organicvapours4­6 , but the sourcesand compositionsofsuch

Cai, Long

224

UV-C??Irradiated Arabidopsis and Tobacco Emit Volatiles That Trigger Genomic Instability in Neighboring Plants  

Science Journals Connector (OSTI)

...impaired in both the production and the perception...is primed by the production of the mobile metabolite...through volatile organic compounds has been...depend on how many cell division cycles have...ankyrin repeats. Cell 88 : 57-63. Caputo...L. (2006). Solar ultraviolet-B radiation...

Youli Yao; Cristian H. Danna; Franz J. Zemp; Viktor Titov; Ozan Nazim Ciftci; Roman Przybylski; Frederick M. Ausubel; Igor Kovalchuk

2011-10-25T23:59:59.000Z

225

Fluid saturation and volatile partitioning between melts and hydrous fluids in crustal magmatic systems: The contribution  

E-Print Network [OSTI]

systems, experimental results on the solubility and partitioning of H2O, CO2, S, Cl, F and a few other ......................................................................... 2 Keywords: magmatic volatiles, solubility, water, carbon dioxide, sulfur, halogens 2 1 systems: The contribution of experimental measurements and solubility models Don R. Baker1 and Marina

Boyer, Edmond

226

Metabolism of 210Po in rats: volatile 210Po in excreta  

Science Journals Connector (OSTI)

......Laboratories, Atomic Energy of Canada Limited...as it emits high-energy alpha particles...stayed and in his own home. Release of volatile...Laboratories, Atomic Energy of Canada Limited...rat, their daily consumption of food and water...efficiency was 98.6 % (average of five replicates......

Chunsheng Li; Baki Sadi; Heather Wyatt; Michelle Bugden; Nicholas Priest; Diana Wilkinson; Gary H. Kramer

2010-07-01T23:59:59.000Z

227

Lunar apatite with terrestrial volatile abundances Jeremy W. Boyce1,2  

E-Print Network [OSTI]

is a high-Al basalt rich in K, rare-earth elements and P (KREEP), consisting dominantly of augite is texturally associated with anhedral apatite having variable Cl and rare-earth-element con- tents is thought to be depleted relative to the Earth in volatile elements such as H, Cl and the alkalis1

Perfect, Ed

228

A Critical Review on Studies of Volatile Organic Compound (VOC) Sorption by  

E-Print Network [OSTI]

A Critical Review on Studies of Volatile Organic Compound (VOC) Sorption by Building Materials (RP the pros and cons of existing sorption models, as well as experimental methods. In addition, it summarizes existing sorption data in order to understand the phenomenon of VOC sorption on building materials better

Chen, Qingyan "Yan"

229

Selective Trapping of Volatile Fission Products with an Off-Gas Treatment System  

SciTech Connect (OSTI)

A head-end processing step, termed DEOX for its emphasis on decladding via oxidation, is being developed for the treatment of spent oxide fuel by pyroprocessing techniques. The head-end step employs high temperatures to oxidize UO2 to U3O8 resulting in the separation of fuel from cladding and the removal of volatile fission products. Development of the head-end step is being performed in collaboration with the Korean Atomic Energy Research Institute (KAERI) through an International Nuclear Energy Research Initiative. Following the initial experimentation for the removal of volatile fission products, an off-gas treatment system was designed in conjunction with KAERI to collect specific fission gases. The primary volatile species targeted for trapping were iodine, technetium, and cesium. Each species is intended to be collected in distinct zones of the off-gas system and within those zones, on individual filters. Separation of the volatile off-gases is achieved thermally as well as chemically given the composition of the filter media. A description of the filter media and a basis for its selection will be given along with the collection mechanisms and design considerations. In addition, results from testing with the off-gas treatment system will be presented.

B.R. Westphal; J.J. Park; J.M. Shin; G.I. Park; K.J. Bateman; D.L. Wahlquist

2008-07-01T23:59:59.000Z

230

Memory in Returns and Volatilities of Futures' Contracts BONNIE K. RAY*  

E-Print Network [OSTI]

Memory in Returns and Volatilities of Futures' Contracts NUNO CRATO BONNIE K. RAY* Various authors claim to have found evidence of stochastic long memory behavior in futures' contract returns using estimate of the long- memory parameter. Results based on these new methods provide no evidence for persis

Crato, Nuno

231

Accurate dispensing of volatile reagents on demand for chemical reactions in EWOD chips{  

E-Print Network [OSTI]

Accurate dispensing of volatile reagents on demand for chemical reactions in EWOD chips{ Huijiang the use of a filler liquid (e.g., oil). These properties pose challenges for delivering controlled volumes are introduced to the chip, independent of time delays between dispensing operations. On-demand dispensing

232

Oxidation and volatilization of a niobium alloy. Fusion Safety Program/Activation Products Task  

SciTech Connect (OSTI)

This report presents the findings from a preliminary investigation into oxidation and volatilization characteristics of a niobium alloy. Niobium is a candidate alloy for use in plasma facing components (PFCS) in experimental fusion reactors like the Intemational Thermonuclear Experimental Reactor (ITER). An experimental alloy was tailored to simulate small changes in chemistry which could result from transmutations from irradiation. The alloy was exposed in air and steam between 800{degree}C and 1200{degree}C. Volatilized products and hydrogen were collected and measured. Post-test examinations were also performed on the samples to determine the amount of material loss during the exposures. The obtained measurements of volatilization flux (g/m{sup 2}-s), hydrogen generation rates (liters/m{sup 2}-s), and recession rates (mm/s) are data which can be used for safety analyses and material performance to predict consequences which may result from an accident involving the ingress of air or steam into the plasma chamber of fusion reactor. In our volatility tests, only molybdenum and niobium were found at release levels above the detection limit. Although molybdenum is present at only 0.12 wt%, the quantities of this element volatilized in air are nearly comparable to the quantities of niobium released. The niobium release in steam is only three to four times higher than that of molybdenum in steam. The hydrogen production of the niobium alloy is compared with other PFC materials that we have tested, specifically, beryllium, graphite, and a tunesten alloy. At high temperatures, the hydrogen production rate of the niobium alloy is among the lowest of these materials, significantly lower than beryllium. To understand what this means in an accident situation, modeling is necessary to predict temperatures, and therefore total hydrogen production. The INEL is currently doing this modeling.

Smolik, G.R.; McCarthy, K.A.

1992-07-01T23:59:59.000Z

233

Product Volatilization as a Probe of the Physics and Chemistry of Latent Image Formation in Chemically Amplified Resists,  

Science Journals Connector (OSTI)

Product Volatilization as a Probe of the Physics and Chemistry of Latent Image Formation in Chemically Amplified Resists, ... The products pass through an all-glass line that uses a high-flow gas stream to extract a small fraction of the product gases through a capillary for analysis. ... Because the rates of each of the sequential steps leading to thickness lossdeprotection, volatilization, and densificationcan be no slower than the overall observed rate of densification, the data in Table 3 provide a lower limit for the rates of volatilization and film densification at 100 C. ...

W. D. Hinsberg; F. A. Houle; G. M. Poliskie; D. Pearson; M. I. Sanchez; H. Ito

2002-08-15T23:59:59.000Z

234

The impact of crude-oil price volatility on agricultural employment in the United States  

SciTech Connect (OSTI)

This study focuses on the impact of fluctuations in the price of crude oil on agricultural employment in the United States. After reviewing previous assessments of the issue, the existence of an empirical relationship between agricultural employment and crude oil price volatility is established using Granger causality. Subsequently, the nature of the relationship is estimated with the results suggesting that at least three full years are required before the measurable impacts of a percentage change in the real price of crude oil on the change in agricultural employment are exhausted. Finally, the structural stability of the functional relationship between the change in agricultural employment and the volatility of the price of crude oil, the percentage changes in expected net farm income, realized technological innovation, and the wage rate is examined.

Uri, N.D. [Dept. of Agriculture, Washington, DC (United States)

1995-12-31T23:59:59.000Z

235

Effect of sampling technique on the measurement of gasoline volatility. Technical report  

SciTech Connect (OSTI)

The U.S. Environmental Protection Agency is proposing the adoption of regulations that would reduce the amount of hydrocarbons released to the atmosphere due to evaporation of gasoline. One regulatory alternative under consideration is to put an upper limit on volatility. Volatility is typically quantified by measurement of Reid vapor pressure. The purpose of the report was to identify and quantify any differences in vapor pressure caused by the technique used to obtain the sample. The objective of the effort is identify and document a fast, inexpensive, and reliable method to obtain enforcement-quality samples at service station-type facilities. The report examines the effect of four sampling techniques and two methods of analysis on three types of fuels.

Scarbro, C.A.; White, J.T.

1987-07-01T23:59:59.000Z

236

DOI: 10.1002/ejic.200600960 Synthesis and Sublimation Kinetics of a Highly Volatile Asymmetric Iron(II)  

E-Print Network [OSTI]

FULL PAPER DOI: 10.1002/ejic.200600960 Synthesis and Sublimation Kinetics of a Highly Volatile: Asymmetric iron(II) amidinate / Bridging ligands / Metathesis / Sublimation kinetics / Thermochemistry properties have been the subject of intense investigations in chemistry, electronics, optics, energy

237

Photochemical Modeling of Emissions Trading of Highly Reactive Volatile Organic Compounds in Houston, Texas. 2. Incorporation of Chlorine Emissions  

Science Journals Connector (OSTI)

As part of the State Implementation Plan for attaining the National Ambient Air Quality Standard for ozone, the Texas Commission of Environmental Quality has created a Highly Reactive Volatile Organic Compounds (HRVOC) Emissions Cap and Trade Program for ...

Linlin Wang; Tammy Thompson; Elena C. McDonald-Buller; David T. Allen

2007-02-27T23:59:59.000Z

238

Volatiles from potato plants infected with potato leafroll virus attract and arrest the virus vector, Myzus persicae (Homoptera: Aphididae)  

Science Journals Connector (OSTI)

7 March 2002 research-article Volatiles from potato plants infected with potato leafroll virus attract and arrest the virus vector...previously reported preferential colonization of potatoes infected by potato leafroll virus (genus Polerovirus...

2002-01-01T23:59:59.000Z

239

PII S0016-7037(01)00802-X Volatilization kinetics of silicon carbide in reducing gases: An experimental study with  

E-Print Network [OSTI]

PII S0016-7037(01)00802-X Volatilization kinetics of silicon carbide in reducing gases occurring hexagonal sili- con carbide ( -SiC), and -SiC, the cubic form, are occasion- ally reported

Grossman, Lawrence

240

The Impact of Tax Shocks and Oil Price Volatility on Risk - A Study of North Sea Oilfield Projects  

E-Print Network [OSTI]

We examine the impact of market volatility and increased fiscal take on risk in strategic natural resource projects. An increase in 2006 UK oilfield taxation is used as a natural experiment for assessing the impact of a ...

Kretzschmar, Gavin Lee; Moles, Peter

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Evaluation of the colossal electroresistance (CER) effect and its application in the non-volatile Resistive Random Access Memory (RRAM)  

E-Print Network [OSTI]

Flash memory, the current leading technology for non-volatile memory (NVM), is projected by many to run obsolete in the face of future miniaturization trend in the semiconductor devices due to some of its technical ...

Wicaksono, Aulia Tegar

2009-01-01T23:59:59.000Z

242

Source Signature of Volatile Organic Compounds from Oil and Natural Gas Operations in Northeastern Colorado  

Science Journals Connector (OSTI)

Source Signature of Volatile Organic Compounds from Oil and Natural Gas Operations in Northeastern Colorado ... Only 4% of all samples at BAO had high ROH+VOCO&NG and were from the western sector where the nearest wells are located indicating that they were not the dominant O&NG source at BAO. ... parameters were measured concurrently at a site on the western perimeter of Boulder, Colorado, during Feb., 1991. ...

J. B. Gilman; B. M. Lerner; W. C. Kuster; J. A. de Gouw

2013-01-14T23:59:59.000Z

243

Ammonia volatilization from surface application of ammonium sulfate to carbonate systems  

E-Print Network [OSTI]

correspond- 3 ed to the simultaneous loss of H 0 and NH . Jewitt (1942) showed that as H 0 loss increased due to evaporation the amount of NH volatilized increased on four alkaline Sudan soils when (NHL?) 2SOL? was surface appli- ed. He proposed...?OH, (IKt) CO , or NH~HCO depending upon the factors mentioned above. This suggests a rather complicated reaction mechanism. Duplessis and Kroontje (1964) also supported Jewitt's (1942) mechanism. In their experiment, (NHL?) SOL? wes surface applied...

Feagley, Sam Edward

1976-01-01T23:59:59.000Z

244

Performance specifications for technology development: Application for characterization of volatile organic compounds in the environment  

SciTech Connect (OSTI)

This report contains information about technology development for the monitoring and remediation of environmental pollution caused by the release of volatile organic compounds. Topics discussed include: performance specification processes, gas chromatography, mass spectrometer, fiber-optic chemical sensors, infrared spectroscopy, Raman spectroscopy, piezoelectric sensors and electrochemical sensors. These methods are analyzed for their cost efficiency, accuracy, and the ability to meet the needs of the customer.

Carpenter, S.E.; Doskey, P.V.; Erickson, M.D.; Lindahl, P.C.

1994-07-01T23:59:59.000Z

245

ABSORPTION DES ACIDES GRAS VOLATILS DANS L'OMASUM DE LA VACHE  

E-Print Network [OSTI]

ABSORPTION DES ACIDES GRAS VOLATILS DANS L'OMASUM DE LA VACHE C. DARDILLAT Station de rôle du feuillet et ses capacités d'absorption sont très mal connus car il est difficile d'accé- der à cet organe sans perturber son fonctionnement. Nous avons fixé par effet ventouse une chambre d'absorption

Boyer, Edmond

246

Estimation of ammonia volatilization from surface-applied urea as indicated by bermudagrass N-use efficiency  

E-Print Network [OSTI]

ESTIMATION OF AMMONIA VOLATILIZATION FROM SURFACE-APPLIED UREA AS INDICATED BY BERMUDAGRASS N-USE EFFICIENCY A Thesis by JOHN MATTHEW DRWAL Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1986 Major Subject: Soil Science ESTIMATION OF AMMONIA VOLATILIZATION FROM SURFACE-APPLIED UREA AS INDICATED BY BERMUDAGRASS N-USE EFFICIENCY A Thesis by JOHN MATTHEW DRWAL Approved as to style and content by...

Drwal, John Matthew

2012-06-07T23:59:59.000Z

247

NOTE SUR LES EFFETS DE L'INFUSION PERMANENTE D'UN MLANGE D'ACIDES GRAS VOLATILS DANS LE  

E-Print Network [OSTI]

NOTE SUR LES EFFETS DE L'INFUSION PERMANENTE D'UN M?LANGE D'ACIDES GRAS VOLATILS DANS LE RUMEN DU problèmes techniques : infusion permanente et prolongée, dans le rumen, de quantités d'acides gras volatils début de l'infusion, les veaux étaient âgés d'environ 4 mois et pesaient respectivement 95 et 80 kg

Paris-Sud XI, Université de

248

Cancer risks from soil emissions of volatile organic compounds at the Lawrence Livermore National Laboratory  

SciTech Connect (OSTI)

The emission isolation flux chamber (EIFC) methodology was applied to Superfund investigations at the Lawrence Livermore National Laboratory Site 300 to determine if on-site workers were exposed to VOCs volatilizing from the subsurface and what, if any, health risks could be attributed to the inhalation of the VOCs volatilizing from the subsurface. During July and August of 1996, twenty, eighteen, and twenty six VOC soil vapor flux samples were collected in the Building 830, 832, and 854 areas, respectively using EIFCS. The VOC concentrations in the vapor samples were used to calculate soil flux rates which were used as input into an air dispersion model to calculate ambient air exposure-point concentrations. The exposure-point concentrations were compared to EPA Region IX Preliminary Remediation Goals (PRGs). Buildings 830 and 832 exposure-point concentrations were less then the PRGs therefore no cancer risks were calculated. The cancer risks for Building 854 ranged from 1.6 x 10{sup -7} to 2.1 x 10{sup -6}. The resultant inhalation cancer risks were all within the acceptable range, implying that on-site workers were not exposed to VOC vapors volatilizing from the subsurface soil that could have significant cancer risks. Therefore remediation in these areas would not be necessary.

Dibley, V. R., LLNL

1998-02-01T23:59:59.000Z

249

Residential Prices Do Not Reflect the Volatility Seen in Wellhead Prices  

Gasoline and Diesel Fuel Update (EIA)

5 5 Notes: A key concern about the level of current wellhead prices is the impact on consumers, especially residential and small-volume commercial customers Using monthly average prices for residential customers and daily Henry Hub spot prices for the past 4 winters: significant price fluctuations are apparent at the Henry Hub, but residential prices respond relatively less. The major reasons for the lesser response in residential prices are: Gas supplies to residential customers generally are arranged prior to delivery, and agreed price terms, while flexible, generally do not fully reflect contemporaneous wellhead price shifts Gas commodity charges are a fraction of the delivery price for small customers-averaging about 33 percent during the heating season. Costs of

250

Hedging mean-reverting commodities  

Science Journals Connector (OSTI)

......investment has an international dimension, exchange rate risk and political risk are also important issues of economic exposure management...Manage., 35, 5386. CLARK, E. (1997) Valuing political risk. J. Int. Money. Financ., 16, 477490. COX......

Udo Broll; Ephraim Clark; Elmar Lukas

2010-01-01T23:59:59.000Z

251

Hedging mean-reverting commodities  

Science Journals Connector (OSTI)

......1985), these costs can be justified only if imperfect capital markets create conditions where corporate hedging re- duces...consumption C and his utility maximization problem. The consumption expenditure of the investor over time is denoted by Cdt. Consider a fixed......

Udo Broll; Ephraim Clark; Elmar Lukas

2010-01-01T23:59:59.000Z

252

Identity Preservation of Agricultural Commodities  

E-Print Network [OSTI]

oil corn, require IP programs to channel these com- modities to specific markets to capture the added in the mar- ketplace in order to receive premium prices. The introduction of crops developed using at each step, including testing and auditing points. Process Seed Testing Field history Field isolation

Bradford, Kent

253

Impact of Storage Time on the Needed Capture Efficiency for Volatile Radionuclides - 13369  

SciTech Connect (OSTI)

During the processing of used nuclear fuel (UNF), volatile radionuclides will be discharged from the facility stack if no recovery processes are in place to limit their release. The volatile radionuclides of concern are {sup 3}H, {sup 14}C, {sup 85}Kr, and {sup 129}I. There are three key regulations that address the release of these radionuclides to the environment- 40 CFR 61, 40 CFR 190, and 10 CFR 20. These regulations apply to the total radionuclide release and establish dose limits for the maximum exposed individual (MEI) in the public both in terms of whole body dose and dose to specific organs such as the thyroid. Each radionuclide released to the environment contributes to the total dose to some degree. In this paper we attempt to evaluate the efficiency requirements for the capture processes to limit the doses to the MEI to regulatory levels. Since the total amount of each volatile radionuclide present in the UNF changes with the age of the fuel, the respective capture requirements also change with time. Specifically, we are interested in the impact of the decreasing contribution of {sup 3}H and {sup 85}Kr, which have relatively short half-lives, 12.32 y and 10.76 y, respectively, with the increasing age of the fuel (i.e., time between when the UNF is removed from the reactor and the time it is processed) on the capture requirements. In this paper we examine the capture requirements for these four radionuclides for three fuel types (pressurized water reactor [PWR] with uranium oxide fuel [UOX], PWR with mixed oxide fuel [MOX], and an advanced high temperature gas-cooled reactor [AHTGR]), several burnup values, and time out of reactor extending to 200 y. We calculate doses to the MEI with the EPA code CAP-88 and look at two dose contribution cases. In the first case, we assume that the total allowable dose is attributed to only the four volatile radionuclides. This establishes the lowest capture efficiency value possible. Since this is unrealistic, because it assumes zero dose contribution from all other radionuclides, we also examine a second case, where only 10% of the allowable dose is assigned to the four volatile radionuclides. We calculate the required decontamination factors (DFs) for both of these cases for the three fuel types, multiple fuel burnups, and fuel ages and determine whether or not the dose to the whole body or to the thyroid that drives the capture requirements would require additional effluent controls for the shorter half-life volatile radionuclides based on dose considerations. This analysis indicates that the principal isotopes of concern are generally {sup 3}H and {sup 129}I, the latter requiring the highest DFs. The maximum DF value for {sup 129}I is 8000 for the evaluated cases and assumptions used. ?60 for fresh fuels. The DF for {sup 14}C could be as high as 30 for certain fuels. These values are based on just meeting the regulatory limits, and additional engineering margins (perhaps 3x to 10x or higher) should be applied to provide a safety factor for compliance. However, by assuming less conservative dose allocations, taller stacks, different radionuclide speciation, fuel aging, and other reprocessing facility design and location parameters, the DF requirements could be significantly reduced. (authors)

Jubin, R.T.; Ilas, G. [Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37849 (United States)] [Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37849 (United States); Soelberg, N.R. [Idaho National Laboratory (United States)] [Idaho National Laboratory (United States); Strachan, D.M. [Pacific Northwest National Laboratory (United States)] [Pacific Northwest National Laboratory (United States)

2013-07-01T23:59:59.000Z

254

Fate of anthropogenic cyclic volatile methylsiloxanes in a wastewater treatment plant  

Science Journals Connector (OSTI)

Abstract The fate of cyclic volatile methylsiloxanes (cVMS) octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), and dodecamethylcyclohexasiloxane (D6) was evaluated in a typical secondary activated sludge wastewater treatment plant (WWTP). Water samples (influent, primary effluent, and final effluent) and sludge (primary sludge and waste activated sludge) samples were collected at overnight low, morning high, afternoon low, and evening high flows. Concentrations of cVMS in influents fluctuated with the influent flows, ranging from 0.166 to 1.13?gL?1, 3.4719.3?gL?1, and 0.4463.87?gL?1 for D4, D5, and D6, respectively. Mass balance analysis of cVMS showed the average mass of D4, D5, and D6 entering and exiting the plant in influent and effluent, respectively, were 109gd?1, 2050gd?1, 280gd?1, and 1.41gd?1, 27.0gd?1, 1.90gd?1. The total removal efficiency of cVMS was >96%. To elucidate their detailed removal mechanisms, Mackay's fugacity-based treatment plant model was used to simulate the fate of cVMS through the WWTP. Due to the unusual combination of high hydrophobicity and volatility of cVMS, volatilization in the aeration tank and adsorption to sludge were the two main pathways of cVMS removal from water in this WWTP based on the experimental and modeled results. The morning and evening high influent mass flows contributed almost equally at approximately 40% of the total daily cVMS mass, with D5 accounting for the majority of this daily loading.

De-Gao Wang; Monica Aggarwal; Tara Tait; Samantha Brimble; Grazina Pacepavicius; Laura Kinsman; Mike Theocharides; Shirley Anne Smyth; Mehran Alaee

2014-01-01T23:59:59.000Z

255

Modelling and forecasting fossil fuels, CO2 and electricity prices and their volatilities  

Science Journals Connector (OSTI)

In the current uncertain context that affects both the world economy and the energy sector, with the rapid increase in the prices of oil and gas and the very unstable political situation that affects some of the largest raw materials producers, there is a need for developing efficient and powerful quantitative tools that allow to model and forecast fossil fuel prices, CO2 emission allowances prices as well as electricity prices. This will improve decision making for all the agents involved in energy issues. Although there are papers focused on modelling fossil fuel prices, CO2 prices and electricity prices, the literature is scarce on attempts to consider all of them together. This paper focuses on both building a multivariate model for the aforementioned prices and comparing its results with those of univariate ones, in terms of prediction accuracy (univariate and multivariate models are compared for a large span of days, all in the first 4 months in 2011) as well as extracting common features in the volatilities of the prices of all these relevant magnitudes. The common features in volatility are extracted by means of a conditionally heteroskedastic dynamic factor model which allows to solve the curse of dimensionality problem that commonly arises when estimating multivariate GARCH models. Additionally, the common volatility factors obtained are useful for improving the forecasting intervals and have a nice economical interpretation. Besides, the results obtained and methodology proposed can be useful as a starting point for risk management or portfolio optimization under uncertainty in the current context of energy markets.

Carolina Garca-Martos; Julio Rodrguez; Mara Jess Snchez

2013-01-01T23:59:59.000Z

256

Oxidation of volatiles in residential wood burning equipment. Final technical report, September 1980-February 1984  

SciTech Connect (OSTI)

The objectives of this project are to measure, through the use of laboratory combustors, those conditions which promote complete combustion of wood volatiles in residential wood burning equipment. The conditions of interest are combustion temperature, residence time, stoichiometry, and air mixing. The project objectives are met through two laboratory approaches: (1) model compound studies: in order to measure the overall rates of oxidative pyrolysis of biomass volatiles, and to determine the types of intermediate organic species which are likely to form as part of this process, model compounds have been reacted in a specialized jet-stirred reactor, which has been developed as part of this research. (2) high-intensity wood combustion: in order to study the clean combustion of wood, that is, to investigate the conceptual design features required for clean burning, and to ascertain the levels and types of pollutant and condensible species which are most difficult to oxidize, a high-intensity, research wood combustor has been developed and examined for the different phases of the wood burning cycle. Although the objectives of the project have been met, it has not been possible, because of support limitations, to thoroughly explore several interesting aspects which have arisen because of this research. For example, a third laboratory system in which wood pyrolysis gas is injected directly into the a well characterized reactor, so that the kinetics and mechanisms of the gas-phase reaction of the actual biomass volatiles can be studied, could not be thoroughly developed. Refinements in the high-intensity wood combustor, which would bring its design features closer to practicality for the industry, could not be considered. 32 references, 37 figures, 10 tables.

Malte, P.C.; Thornton, M.M.; Kamber, P.D.

1984-04-01T23:59:59.000Z

257

A study of Shanghai fuel oil futures price volatility based on high frequency data: Long-range dependence, modeling and forecasting  

Science Journals Connector (OSTI)

In existing researches, the investigations of oil price volatility are always performed based on daily data and squared daily return is always taken as the proxy of actual volatility. However, it is widely accepted that the popular realized volatility (RV) based on high frequency data is a more robust measure of actual volatility than squared return. Due to this motivation, we investigate dynamics of daily volatility of Shanghai fuel oil futures prices employing 5-minute high frequency data. First, using a nonparametric method, we find that RV displays strong long-range dependence and recent financial crisis can cause a lower degree of long-range dependence. Second, we model daily volatility using RV models and GARCH-class models. Our results indicate that RV models for intraday data overwhelmingly outperform GARCH-class models for daily data in forecasting fuel oil price volatility, regardless the proxy of actual volatility. Finally, we investigate the major source of such volatile prices and found that trader activity has major contribution to fierce variations of fuel oil prices.

Li Liu; Jieqiu Wan

2012-01-01T23:59:59.000Z

258

Volatile tritiated organic acids in stack effluents and in air surrounding contaminated materials  

SciTech Connect (OSTI)

A small fraction of the tritium released into the atmosphere from tritium-handling or solid waste storage facilities was shown to be in the form of volatile organic acids. The same compounds were also found, but at a much higher proportion, in the tritium evolved at room temperature from highly contaminated materials placed under air atmospheres. This might be due to the oxidation and labeling of hydrocarbon(s) by mechanisms that are presumably of a radiolytic nature. The new forms could have an impact on operational requirements and waste management strategies within a tritium facility and a fusion reactor hall. Further data are needed to assess the related doses.

Belot, Y.; Camus, H.; Marini, T.; Raviart, S. (Institut de Protection et de Surete Nucleaire (France))

1993-06-01T23:59:59.000Z

259

Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds  

DOE Patents [OSTI]

A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the light emitted from the complex will indicate the presence of the contaminant. A probe containing the photo-activator has an excitation light interface and a contaminant interface. One particular embodiment uses a porous membrane as the contaminant interface, so that the contaminant can migrate therethrough to the photo-activator and thereby form the complex.

Dinh, Tuan V. (Knoxville, TN)

1996-01-01T23:59:59.000Z

260

Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds  

DOE Patents [OSTI]

A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the light emitted from the complex will indicate the presence of the contaminant. A probe containing the photo-activator has an excitation light interface and a contaminant interface. One particular embodiment uses a porous membrane as the contaminant interface, so that the contaminant can migrate there through to the photo-activator and thereby form the complex. 23 figs.

Dinh, T.V.

1996-06-11T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Long-Term Growth and Short-Term Volatility: The Labour Market Nexus  

E-Print Network [OSTI]

(1997) and (2000), Black- burn and Galindev (2003), show that when the knowledge (embodied or disembodied) accumulation externality works only through labour, volatility will be detrimental to growth. However, De Hek (1999), going back to Romers (1986... where mpt ? MtPtKt . Equation (10) also tells us that inflation pit+1 = Pt+1Pt ? 1 evolves according to: (1 + pit)(1 + gt) = at. (29) Coming to the labour market equilibrium, (17) in terms of stationary variables be- comes: Lt = (?2atbtEt?1Lta?1t ??ct...

Annicchiarico, B; Corrado, Luisa; Pelloni, A

262

Literature review of stabilization/solidification of volatile organic compounds and the implications for Hanford grouts  

SciTech Connect (OSTI)

A literature review was conducted on the stabilization/solidification of volatile organic compounds (VOCs). Based on this literature, it is likely that the limestone-containing grout will not permanently immobilize VOCs and that no presently available additives can guarantee permanent immobilization. The Westinghouse hanford company grout may be fairly effective at retarding aqueous leaching of VOCs, and commercial additives can improve this performance. Significant VOC losses do occur during stabilization/solidification, and the high temperatures of the Westinghouse Hanford Company waste and grout should exacerbate this problem. In fact, these high temperatures raise doubts about the presence of VOCs in the double-shell tanks supernates.

Spence, R.D.; Osborne, S.C.

1993-09-01T23:59:59.000Z

263

Generation risk assessment in volatile conditions with wind, hydro, and natural gas units  

Science Journals Connector (OSTI)

This paper studies a generating company (GENCO)s midterm (a few months to a year) scheduling payoffs and risks in volatile operating conditions. The proposed algorithm considers the integration of intermittent wind units into a GENCOs generation assets and coordinates the GENCOs hourly wind generation schedule with that of natural gas (NG) units (with volatile gas prices) and hydro units (with water inflow forecast) for maximizing the GENCOs payoff. The proposed midterm GENCO model applies market price forecasts to the risk-constrained stochastic price-based unit commitment (PBUC) for calculating the GENCOs risk in energy and ancillary services markets. The proposed PBUC minimizes the cost of (a) NG contracts, storage, startup and shutdown, (b) startup and shutdown of cascaded hydro units, and (c) penalty for defaulting on the scheduled power delivery. Simulation results show that the diversification of generating assets including bilateral contracts (BCs) could enhance the GENCOs midterm planning by increasing the expected payoff and decreasing the financial risk.

Cem Sahin; Mohammad Shahidehpour; Ismet Erkmen

2012-01-01T23:59:59.000Z

264

Volatile abundances in submarine glasses from the North Fiji and Lau back-arc basins  

SciTech Connect (OSTI)

Glasses from submarine lavas of the North Fiji and lau back-arc basins were analyzed by high-temperature mass spectrometry for volatiles. Abundances for H{sub 2}O, Cl, F, S and CO{sub 2} in glasses ranging in composition from depleted, primitive MORB to enriched, transitional tholeiites are reported. The samples divide into three groups based on K{sub 2}O vs. H{sub 2}O, Ba/Zr vs. H{sub 2}O and K{sub 2}O/H{sub 2}O vs. P{sub 2}O{sub 5}/H{sub 2}O variation diagrams. At similar Mg No., the least evolved samples studied are nearly identical to N-type MORB in H{sub 2}O abundances but show Cl contents enriched by a factor of 5. More enriched samples, classified as back-arc basin basalts (BABB) on the basis of major/trace elements and isotopes, are not as hydrous (at similar Mg No.) as those from the Mariana and East Scotia Sea back-arc basins. The data indicate that not all back-arc basins erupt lavas with the distinct volatile and other elemental characteristics of lavas from the Mariana Trough and Scotia Sea.

Aggrey, K.E.; Muenow, D.W.; Sinton, J.M. (Univ. of Hawaii, Honolulu (USA))

1988-10-01T23:59:59.000Z

265

Evaluation of several methods to measure volatility of motor fuels. Technical report  

SciTech Connect (OSTI)

The U.S. Environmental Protection Agency is proposing regulations to reduce the amount of hydrocarbons released to the atmosphere due to the evaporation of automotive fuels. The new regulations may define upper volatility limits for these fuels based on seasonal climatic patterns. Volatility of gasoline fuels is typically quantified by measurement of Reid vapor pressure (RVP). Although an established procedure exists for the assessment of the parameter (ASTM S 323), there is question as to the accuracy of the procedure when evaluating fuels with water-interactive constituents, e.g., alcohols and ethers. ASTM P 176 is a procedure that has been proposed as its replacement. It addresses the problem of water and is known as the dry version of ASTM D 323. The correlation study was designed to evaluate the proposed ASTM P 176 procedure for repeatability and reproducibility. The results of the study will help establish a basis for enforcement tolerance. Also evaluated was the equivalency of results from two commercial instruments versus those obtained by the traditional gauges and bath techniques.

Haubenstricker, M.E.; Scarbro, C.A.

1987-07-01T23:59:59.000Z

266

An assessment of methyl mercury and volatile mercury in land-applied sewage sludge  

SciTech Connect (OSTI)

In 1993, the US Environmental Protection Agency issued regulations covering the land-application of municipal sewage sludge. These regulations established maximum pollutant concentrations and were based upon a risk assessment of human exposure. Mercury, assumed to be inorganic and non-volatile, was one pollutant evaluated. From April, 1995 through February, 1996, the authors studied the species of mercury contaminating municipal sludge applied to land, and the potential for volatilization of mercury from land-applied sludge. Methyl mercury was found at 0.1% of total mercury concentrations and was emitted from land-applied sludge to the atmosphere. Elemental mercury (Hg) was formed in land-applied sludge via the reduction of oxidized mercury and was also emitted to the atmosphere. Hg emission from land-applied sludge was significantly elevated over background soil emission. Methyl mercury is more toxic and more highly bioaccumulated than inorganic mercury, and warrants assessment considering these special criteria. Additionally, mercury emission from sludge-amended soil may lead to the contamination of other environmental media with significant concentrations of the metal. Although these pathways were not evaluated in the regulatory risk assessment, they are an important consideration for evaluating the risks from mercury in land-applied sludge. This presentation will summarize the results of a re-assessment of US EPA regulations regarding the land-application of municipal sewage sludge using data on methyl mercury toxicity and mercury transport in the atmosphere.

Carpi, A. [Cornell Univ., Ithaca, NY (United States); Lindberg, S.E. [Oak Ridge National Lab., TN (United States)

1995-12-31T23:59:59.000Z

267

Conditional correlations and volatility spillovers between crude oil and stock index returns  

Science Journals Connector (OSTI)

This paper investigates the conditional correlations and volatility spillovers between the crude oil and financial markets, based on crude oil returns and stock index returns. Daily returns from 2 January 1998 to 4 November 2009 of the crude oil spot, forward and futures prices from the WTI and Brent markets, and the FTSE100, NYSE, Dow Jones and S&P500 stock index returns, are analysed using the CCC model of Bollerslev (1990), VARMA-GARCH model of Ling and McAleer (2003), VARMA-AGARCH model of McAleer, Hoti, and Chan (2008), and DCC model of Engle (2002). Based on the CCC model, the estimates of conditional correlations for returns across markets are very low, and some are not statistically significant, which means the conditional shocks are correlated only in the same market and not across markets. However, the DCC estimates of the conditional correlations are always significant. This result makes it clear that the assumption of constant conditional correlations is not supported empirically. Surprisingly, the empirical results from the VARMA-GARCH and VARMA-AGARCH models provide little evidence of volatility spillovers between the crude oil and financial markets. The evidence of asymmetric effects of negative and positive shocks of equal magnitude on the conditional variances suggests that VARMA-AGARCH is superior to VARMA-GARCH and CCC.

Chia-Lin Chang; Michael McAleer; Roengchai Tansuchat

2013-01-01T23:59:59.000Z

268

Oxidation and Volatilization from Tantalum Alloy T-222 During Air Exposure  

SciTech Connect (OSTI)

Tantalum alloys are one of the refractory metals with renewed consideration for high temperatures in fusion reactor applications. Tantalum alloys perform well in protective environments but oxidized readily in gases containing higher oxygen levels. In addition, the radioactive isotope Ta-182 would be produced in tantalum and could be a significant contributor to dose if mobilized. Other isotopes of importance are produced from tungsten and hafnium. Mobilization of activated products during an accident with air ingress is therefore a safety issue. In this study, we measured the extent of oxidation and mobilization from tantalum alloy T-222 oxidized in flowing air between 500 and 1200 C. This alloy nominally contains 10 wt% tungsten, 2.5 wt% hafnium and 0.01 wt% carbon. We found that the mobilization of Ta and Hf was closely linked to the occurrence of oxide spalling. These elements showed no migration from the test chamber. Some W was mobilized by volatilization as evidenced by transport from the chamber. Tungsten volatilization could occur primarily during initial stages of oxidation before an oxide scale forms and impedes the process. The mobilization of Ta and W are presented in terms of the mass flux (g/m 2 -h) as a function of test temperature. These measurements along with specific designs, activation calculations, and accident scenarios provide information useful for dose calculations of future fusion devices.

Smolik, G.R.; Petti, D.A.; Sharpe, J.P.; Schuetz, S.T.

2000-10-31T23:59:59.000Z

269

Oxidation and Volatilization from Tantalum Alloy T-222 During Air Exposure  

SciTech Connect (OSTI)

Tantalum alloys are one of the refractory metals with renewed consideration for high temperatures in fusion reactor applications. Tantalum alloys perform well in protective environments but oxidized readily in gases containing higher oxygen levels. In addition, the radioactive isotope Ta-182 would be produced in tantalum and could be a significant contributor to dose if mobilized. Other isotopes of importance are produced from tungsten and hafnium. Mobilization of activated products during an accident with air ingress is therefore a safety issue. In this study, we measured the extent of oxidation and mobilization from tantalum alloy T-222 oxidized in flowing air between 500 and 1200C. This alloy nominally contains 10 wt% tungsten, 2.5 wt% hafnium and 0.01 wt% carbon. We found that the mobilization of Ta and Hf was closely linked to the occurrence of oxide spalling. These elements showed no migration from the test chamber. Some W was mobilized by volatilization as evidenced by transport from the chamber. Tungsten volatilization could occur primarily during initial stages of oxidation before an oxide scale forms and impedes the process. The mobilization of Ta and W are presented in terms of the mass flux (g/m 2 -h) as a function of test temperature. These measurements along with specific designs, activation calculations, and accident scenarios provide information useful for dose calculations of future fusion devices

Smolik, Galen Richard; Petti, David Andrew; Sharpe, John Phillip; Schuetz, Stanley Thomas

2000-10-01T23:59:59.000Z

270

Risk sharing in contracts : the use of fuel surcharge programs  

E-Print Network [OSTI]

Various industries employ risk sharing contracts to manage the risks and volatility associated with commodity prices, inaccurate customer demand forecasts, or unpredictable events. For example commodity futures that enable ...

Kanteti, Madhavi

2011-01-01T23:59:59.000Z

271

Modified Atmosphere Packaged Cheddar Cheese Shreds:? Influence of Fluorescent Light Exposure and Gas Type on Color and Production of Volatile Compounds  

Science Journals Connector (OSTI)

Modified Atmosphere Packaged Cheddar Cheese Shreds:? Influence of Fluorescent Light Exposure and Gas Type on Color and Production of Volatile Compounds ... The cheese block was shredded with a hand shredder. ... Aldehydes were the major constituent of the volatile fraction of shredded Cheddar cheese packaged under CO2. ...

Llori M. Colchin; Sandra L. Owens; Galina Lyubachevskaya; Elizabeth Boyle-Roden; Estelle Russek-Cohen; Scott A. Rankin

2001-04-13T23:59:59.000Z

272

Photochemical Modeling of Emissions Trading of Highly Reactive Volatile Organic Compounds in Houston, Texas. 1. Reactivity Based Trading and Potential for Ozone Hot Spot Formation  

Science Journals Connector (OSTI)

Photochemical Modeling of Emissions Trading of Highly Reactive Volatile Organic Compounds in Houston, Texas. ... (12)?Thompson, T. M.; Wang, L.; Web, A.; McDonald-Buller, E.; Allen, D. T. Photochemical Modeling of the Air Quality Impacts of an Emissions Trading Program for Highly Reactive Volatile Organic Compounds (HRVOCs) in Texas; Air and Waste Management Association Annual Meeting, New Orleans, June, 2006. ...

Linlin Wang; Tammy Thompson; Elena C. McDonald-Buller; Alba Webb; David T. Allen

2007-02-27T23:59:59.000Z

273

Volatility regimes, asymmetric basis effects and forecasting performance: An empirical investigation of the WTI crude oil futures market  

Science Journals Connector (OSTI)

This study employs a flexible regime-switching EGARCH model with Student-t distributed error terms to investigate whether volatility regimes and basis affect the behavior of crude oil futures returns, including the conditional mean, variance, skewness, kurtosis as well as the extent of heavy-tailedness. The study also examines whether volatility regimes and asymmetric basis effects can improve the forecasting accuracy. The main merit of the empirical model is that the basis effect is allowed to be asymmetric and to vary across volatility regimes. Empirical results suggest that the conditional mean and variance respond to the basis asymmetrically and nonlinearly, and that the responses of transition probabilities to the basis are symmetric. Furthermore, the conditional higher moments are sensitive to the absolute value of basis, and the heavy tailed characteristic can be greatly alleviated by taking into account the asymmetric basis effects and regime switches. Finally, the regime switches and asymmetric basis effects play decisive roles in forecasting return, volatility and tail distribution.

Kuang-Liang Chang

2012-01-01T23:59:59.000Z

274

Use of Low-Volatile Solid Fuels in a 100 kW Chemical-Looping Combustor  

Science Journals Connector (OSTI)

Swedish wood char and Mexican petcoke, both having low volatile content, were used as fuel. ... The carbon capture efficiency was high with wood char, but not as high with petcoke. ... Using petcoke as fuel, high gas conversion was achieved even when employing very high fuel power, 148 kW. ...

Carl Linderholm; Matthias Schmitz; Pavleta Knutsson; Malin Klln; Anders Lyngfelt

2014-08-21T23:59:59.000Z

275

Fluid saturation and volatile partitioning between melts and hydrous fluids in crustal magmatic systems: The contribution of experimental measurements and  

E-Print Network [OSTI]

systems, experimental results on the solubility and partitioning of H2O, CO2, S, Cl, F and a few other systems: The contribution of experimental measurements and solubility models Don R. Baker a, , Marina 2012 Keywords: Magmatic volatiles Solubility Water Carbon dioxide Sulfur Halogens This work reviews

Long, Bernard

276

Diversity of the Volatile Organic Compounds Emitted by 55 Species of Tropical Trees: a Survey in French Guiana  

E-Print Network [OSTI]

in French Guiana Elodie A. Courtois & C. E. Timothy Paine & Pierre-Alain Blandinieres & Didier Stien & Jean, LLC 2009 Abstract Volatile organic compounds (VOCs) are pro- duced by a broad range of organisms, from tropical tree species in a lowland rainforest of French Guiana. We discovered a remarkably high chemical

Chave, Jérôme

277

Estimation of Volatility The values of the parameters r, t, St, T, and K used to price a call op-  

E-Print Network [OSTI]

is the price of light sweet crude oil futures traded on the New York Mercantile Exchange (NYMEX), basedChapter 7 Estimation of Volatility The values of the parameters r, t, St, T, and K used to price in the stock price model dSt St = µdt + dBt. A natural estimator for the trend parameter µ can be written as ^µ

Privault, Nicolas

278

Identifying Sources of Volatile Organic Compounds and Aldehydes in a High  

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

Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Performance Building Title Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Performance Building Publication Type Report LBNL Report Number LBNL-3979e Year of Publication 2010 Authors Ortiz, Anna C., Marion L. Russell, Wen-Yee Lee, Michael G. Apte, and Randy L. Maddalena Pagination 29 Date Published 09/2010 Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract The developers of the Paharpur Business Center (PBC) and Software Technology Incubator Park in New Delhi, India offer an environmentally sustainable building with a strong emphasis on energy conservation, waste minimization and superior indoor air quality (IAQ). To achieve the IAQ goal, the building utilizes a series of air cleaning technologies for treating the air entering the building. These technologies include an initial water wash followed by ultraviolet light treatment and biolfiltration using a greenhouse located on the roof and numerous plants distributed throughout the building. Even with the extensive treatment of makeup air and room air in the PBC, a recent study found that the concentrations of common volatile organic compounds and aldehydes appear to rise incrementally as the air passes through the building from the supply to the exhaust. This finding highlights the need to consider the minimization of chemical sources in buildings in combination with the use of advanced air cleaning technologies when seeking to achieve superior IAQ. The goal of this project was to identify potential source materials for indoor chemicals in the PBC. Samples of building materials, including wood paneling (polished and unpolished), drywall, and plastic from a hydroponic drum that was part of the air cleaning system, were collected from the building for testing. All materials were collected from the PBC building and shipped to the Lawrence Berkeley National Laboratory (LBNL) for testing. The materials were pre-conditioned for two different time periods before measuring material and chemical specific emission factors for a range of VOCs and Aldehydes. Of the six materials tested, we found that the highest emitter of formaldehyde was new plywood paneling. Although polish and paint contribute to some VOC emissions, the main influence of the polish was in altering the capacity of the surface to accumulate formaldehyde. Neither the new nor aged polish contributed significantly to formaldehyde emissions. The VOC emission stream (excluding formaldehyde) was composed of up to 18 different chemicals and the total VOC emissions ranged in magnitude from 7 μg/m2/h (old wood with old polish) to >500 μg/m2/h (painted drywall). The formaldehyde emissions from drywall and old wood with either new or old polish were ~ 15 μg/m2/h while the new wood material emitted > 100 μg/m2/h. However, when the projected surface area of each material in the building was considered, the new wood, old wood and painted drywall material all contributed substantially to the indoor formaldehyde loading while the coatings contributed primarily to the VOCs

279

NMED COMMENTS ITEM 3 REVISE VOLATILE ORGANIC COMPOUND (VOC) TARGET ANALYTE LIST  

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

3 3 NMED COMMENTS ITEM 3 REVISE VOLATILE ORGANIC COMPOUND (VOC) TARGET ANALYTE LIST OTHER CHANGES TO VOC MONITORING PROGRAM Page 1 of 21 VOC 3·1: PMR Section 3, Topic 1, Table 1 Recalculated Waste Matrix Code Group Weighting Factors based on the 2004 Compliance Recertification Contact Handled (CH) Transuranic (TRU) Waste Inventory (m 3 ) The new weighting factors appear to be based on CH TRU waste only and do not include remote handled (RH) TRU waste. There was no discussion in the PMR addressing possible differences in Waste Matrix Code Group (WMCG) for RH TRU that could potentially impact the weighting factors. Please provide data characterizing the differences in emissions between the two types of waste, in support of the assertion that modeling data from CH TRU waste adequately

280

Explaining the convenience yield in the WTI crude oil market using realized volatility and jumps  

Science Journals Connector (OSTI)

Abstract In this paper, we first provide an empirical evidence of the existence of intraday jumps in the crude oil price series. We then show that these jumps, in conjunction with realized volatility measures, are important in modeling the convenience yield over the 20012010 period. Our empirical results indicate that lagged jump mean only explains around 16% of the weekly convenience yield. Our best specification, including variation in inventories, 8-week realized variance and the 250-day jump mean is able to explain around 61% of the weekly convenience yield. Importantly, our results are not driven by the simultaneous determination of the various variables at work as we only use lagged variables in all regressions.

Benot Svi

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Evaluation of calcium chloride and ammonium thiosulfate as ammonia volatilization inhibitors for surface-applied urea  

E-Print Network [OSTI]

million tons Total fertilizer Total N NH4NOs Anhydrous NHs N solutions Urea 22. 7 24. 9 42. 5 52. 8 41. 8 50. 1 1. 6 2. 74 8. 60 11. 4 9. 13 11. 1 1. 12 1. 23 2. 80 2. 63 2. 15 2. 19 0. 35 0. 71 4. 02 5. 48 3. 84 4. 71 0. 21 0. 65 4. 11 6. 67 6...-12 10-12 10-12 0-2 12-14 0-2 120 144 96 24 36 24 261 3128 218 1878 225 3104 In general, three major effects were observed: 1) The lag phase of NHs volatilization was delayed or lengthened. 2) The maximum N loss rate occurred later...

Sloan, John J.

1989-01-01T23:59:59.000Z

282

Investigations of release phenomenon of volatile organic compounds and particulates from residual storage chip piles  

SciTech Connect (OSTI)

This paper outlines the method for estimating Particulate Matter and Volatile Organic Compounds (VOCs) emissions from wood handling and storage operations at a pulp mill. Fugitive particulate matter emissions from wood handling and storage operations are due to material load/dropout operations, wind erosion from storage piles and vehicular traffic on paved roads. The particulate matter emissions are a function of a number of variables like windspeed, surface moisture content, material silt content, and number of days of precipitation. Literature review attributes VOC emissions to biological, microbiological, chemical, and physical processes occurring in wood material storage pile. The VOC emissions are from the surface of these piles and the VOC released during retrieval of chips from the pile. VOC emissions are based on the chip throughput, number of turnovers, moisture content and surface area of the pile. The emission factors with the requisite calculation methodology to be utilized for quantifying VOC emissions from chip piles has been discussed in this paper.

Mohan, S.; Nagarkatti, M. [Trinity Consultants, Inc., Baton Rouge, LA (United States)

1996-12-31T23:59:59.000Z

283

Hydrogen Safety Project chemical analysis support task: Window C'' volatile organic analysis  

SciTech Connect (OSTI)

This data package contains the results obtained by Pacific Northwest Laboratory (PNL) staff in the characterization of samples for the 101-SY Hydrogen Safety Project. The samples were submitted for analysis by Westinghouse Hanford Company (WHC) under the Technical Project Plan (TPP) 17667 and the Quality Assurance Plan MCS-027. They came from a core taken during Window C'' after the May 1991 gas release event. The analytical procedures required for analysis were defined in the Test Instructions (TI) prepared by the PNL 101-SY Analytical Chemistry Laboratory (ACL) Project Management Office in accordance with the TPP and the QA Plan. The requested analysis for these samples was volatile organic analysis. The quality control (QC) requirements for each sample are defined in the Test Instructions for each sample. The QC requirements outlined in the procedures and requested in the WHC statement of work were followed.

Gillespie, B.M.; Stromatt, R.W.; Ross, G.A.; Hoope, E.A.

1992-01-01T23:59:59.000Z

284

Hydrogen Safety Project chemical analysis support task: Window ``C`` volatile organic analysis  

SciTech Connect (OSTI)

This data package contains the results obtained by Pacific Northwest Laboratory (PNL) staff in the characterization of samples for the 101-SY Hydrogen Safety Project. The samples were submitted for analysis by Westinghouse Hanford Company (WHC) under the Technical Project Plan (TPP) 17667 and the Quality Assurance Plan MCS-027. They came from a core taken during Window ``C`` after the May 1991 gas release event. The analytical procedures required for analysis were defined in the Test Instructions (TI) prepared by the PNL 101-SY Analytical Chemistry Laboratory (ACL) Project Management Office in accordance with the TPP and the QA Plan. The requested analysis for these samples was volatile organic analysis. The quality control (QC) requirements for each sample are defined in the Test Instructions for each sample. The QC requirements outlined in the procedures and requested in the WHC statement of work were followed.

Gillespie, B.M.; Stromatt, R.W.; Ross, G.A.; Hoope, E.A.

1992-01-01T23:59:59.000Z

285

FIELD SCREENING FOR HALOGENATED VOLATILE ORGANIC COMPOUNDS: THE NEW X-WAND HVOC SCREENING DEVICE  

SciTech Connect (OSTI)

Western Research Institute (WRI) has developed new methodology and a test kit to screen soil or water samples for halogenated volatile organic compounds (HVOCs) in the field. The technology has been designated the X-Wand{trademark} screening tool. The new device uses a heated diode sensor that is commonly used to detect leaks of refrigerants from air conditioners, freezers, and refrigerators. This sensor is selective to halogens. It does not respond to volatile aromatic hydrocarbons, such as those in gasoline, and it is not affected by high humidity. In the current work, the heated diode leak detectors were modified further to provide units with rapid response and enhanced sensitivity. The limit of detection for trichloroethylene TCE in air is 0.1 mg/m{sup 3} (S/N = 2). The response to other HVOCS relative to TCE is similar. Variability between sensors and changes in a particular sensor over time can be compensated for by normalizing sensor readings to a maximum sensor reading at 1,000 mg/m{sup 3} TCE. The soil TCE screening method was expanded to include application to water samples. Assuming complete vaporization, the detection limit for TCE in soil is about 1 ug/kg (ppb) for a 25-g sample in an 8-oz jar. The detection limit for TCE in water is about 1 ug/L (ppb) for a 25-mL sample in an 8-oz jar. This is comparable to quantitation limits of EPA GC/MS laboratory methods. A draft ASTM method for screening TCE contaminated soils using a heated diode sensor was successfully submitted for concurrent main committee and subcommittee balloting in ASTM Committee D 34 on Waste Management. The method was approved as ASTM D 7203-05, Standard Test Method for Screening Trichloroethylene (TCE)-Contaminated Soil Using a Heated Diode Sensor.

John F. Schabron; Susan S. Sorini; Joseph F. Rovani Jr

2006-03-01T23:59:59.000Z

286

Development and Application of A Membrane-Based Thermodenuder for Measurement of Volatile Particles Emitted by A Jet Turbine Engine  

SciTech Connect (OSTI)

Measurement of volatile particles emitted by modern jet engines is a daunting task. Besides the complexity in sampling jet aircraft exhaust, the main difficulty lies at how to faithfully capture the phase-partition dynamics of volatile particles as they travel downstream from the engine exhaust nozzle. As a result, the physico-chemical properties of the exhaust are also transformed. We have developed a sampling instrument that aims at enabling study of the phase-partition dynamics. The objective of this research project was to design and evaluate a new thermodenuder for performing phase separation of the engine-emitted volatile particles. The backbone of the new thermodenuder is a thin metallic membrane. The membrane enables extraction of molecules that can be thermally desorbed from the condensed particulate phases and collected for subsequent chemical analysis. Toward realization of the technique in the future field aircraft emissions measurement we tested this new thermo-denuding device using laboratory-generated particles that were made of non-volatile or semi-volatile chemicals. The particle penetration efficiency, a measure of the device performance, of this thermodenuder was found to be better than 99%. Results obtained from the tests executed at a number of operating temperature conditions show reasonably good thermal separation. We have scheduled to apply this new device to characterize emissions from a T63 turboshaft engine in the spring of 2010 and are expecting to show the engine results at the conference. The test results based on the laboratory-generated particles were encouraging for the intended application. With excellent particle transmission efficiency and an ability to simultaneously measure the composition in the gas and particle phases of the engine particles, we believe the new technology will make a great contribution to measurement research of engine emissions.

Cheng, Mengdawn [ORNL

2010-01-01T23:59:59.000Z

287

A numerical solution to three-dimensional multiphase transport of volatile organic compounds in unsaturated soils -- with an application to the remedial method of in-situ volatilization. Part I: Theoretical development  

SciTech Connect (OSTI)

Part I of this paper presents the development and application of a numerical model for determining the fate and transport of volatile organic compounds (VOCS) in the unsaturated zone resulting from forced volatilization and gaseous advection-dispersion of organic vapor in a multipartitioned three-dimensional environment. The model allows for single-component transport in the gas and water phases. The hydrocarbon is assumed to be in specific retention and, therefore, immobile. Partitioning of the hydrocarbon between the oil, water, gas, and soil is developed as rate-limited functions that are incorporated into sink/source terms in the transport equations. The code for the model was developed specifically to investigate in-situ volatilization (ISV) remedial strategies, predict the extent of cleanup from information obtained at a limited number of measurement locations, and to help design ISV remedial systems. Application of the model is demonstrated for a hypothetical one-dimensional ISV system. Part II of this paper will present the analysis of an existing ISV system using the full three-dimensional capability of the model.

Filley, T.; Tomasko, D.

1992-04-01T23:59:59.000Z

288

Is HaleBopp A Juvenile Comet Study Of The Energy Balance To Explain The Vapor Flux Of Volatiles From The Surface  

Science Journals Connector (OSTI)

Sublimation of minor gases from ices inside of a porous comet ... input. Our model meant to describe the gas flux inside and out of the porous...2O and CO as the most abundant minor component of higher volatility...

J. Benkhoff; H. Rauer

289

Separation and Identification of Volatile Compounds from Liquid Cultures of Trichoderma harzianum by GC-MS using Three Different Capillary Columns  

Science Journals Connector (OSTI)

......functions in the organism that are of remarkable importance to humankind in medical, industrial or agricultural applications. Some...activities. Volatile compounds are appear as intermediate and end products of diverse metabolic pathways and belong to various......

Shafiquzzaman Siddiquee; Bo Eng Cheong; Khanam Taslima; Hossain Kausar; Md Mainul Hasan

2012-04-01T23:59:59.000Z

290

Volatility of Mixtures of JP-8 with Biomass Derived Hydroprocessed Renewable Jet Fuels by the Composition Explicit Distillation Curve Method  

Science Journals Connector (OSTI)

Volatility of Mixtures of JP-8 with Biomass Derived Hydroprocessed Renewable Jet Fuels by the Composition Explicit Distillation Curve Method ... Energy Fuels, 2012, 26 (3), ... There are many reasons for this, the most important of which are guarding against potential supply disruptions, overcoming the dependence on foreign sources of petroleum, overcoming the vulnerability of large centralized refineries (to both weather events and terrorist acts), and mitigation of the rising costs of current fuel streams. ...

Jean Van Buren; Kathryn Abel; Tara M. Lovestead; Thomas J. Bruno

2012-02-28T23:59:59.000Z

291

The Pond 2 selenium volatilization study: A synthesis of five years of experimental results, 1990--1995  

SciTech Connect (OSTI)

Microbial volatilization is a potential remedial measure to decrease the selenium inventory in Kesterson Reservoir soils. Past studies in both the field and the laboratory suggest that a significant percentage of the selenium inventory may be removed in this fashion. The objectives of this study include the quantification of selenium losses and a test of a pilot-scale design which in the future may be used in other parts of the Reservoir.

Zawislanski, P.T. [Lawrence Berkeley National Lab., CA (United States). Earth Sciences Div.; Jayaweera, G.R.; Biggar, J.W.; Wu, L. [Univ. of California, Davis, CA (United States); Frankenberger, W.T. [Univ. of California, Riverside, CA (United States). Dept. of Soil and Environmental Sciences

1996-02-01T23:59:59.000Z

292

Secondary Organic Aerosol from Aqueous Reactions of Green Leaf Volatiles with Organic Triplet Excited States and Singlet Molecular Oxygen  

Science Journals Connector (OSTI)

Secondary Organic Aerosol from Aqueous Reactions of Green Leaf Volatiles with Organic Triplet Excited States and Singlet Molecular Oxygen ... To examine this, we calculated the bond dissociation energies (BDE) of different CH bonds in the two molecules (Section S2 and Figure S3 in the SI). ... by the Arrhenius equation (Figure 3b)(6)where A is the pre-exponential factor, Ea is the activation energy, and R is the gas constant. ...

Nicole K. Richards-Henderson; Andrew T. Pham; Benjamin B. Kirk; Cort Anastasio

2014-11-26T23:59:59.000Z

293

Vertical composition gradient effects on original hydrocarbon in place volumes and liquid recovery for volatile oil and gas condensate reservoirs  

E-Print Network [OSTI]

in Place Volumes and Liquid Recovery for Volatile Oil and Gas Condensate Reservoirs. (December 2000) Juan Manual Jaramillo Arias, B. S. , Universidad de America; B. S. , Universidad Nacional de Colombia Chair of Advisory Committee: Dr. Maria A. Barrufet... Reservoir Performance 2. 2 Equation of State Review. . 2. 3 Peng Robinson Equation of State (PR EOS). 2. 4 Vapor Liquid Equilibria. . 2. 5 Volume Translation. 2. 6 Pseudoization or Lumping. 2. 7 Heavy Fraction Characterization. . 2. 8 Compositional...

Jaramillo Arias, Juan Manuel

2012-06-07T23:59:59.000Z

294

LastingNVCache: A Technique for Improving the Lifetime of Non-volatile Caches  

SciTech Connect (OSTI)

Use of NVM (Non-volatile memory) devices such as ReRAM (resistive RAM) and STT-RAM (spin transfer torque RAM) for designing on-chip caches holds the promise of providing a high-density, low-leakage alternative to SRAM. However, low write endurance of NVMs, along with the write-variation introduced by existing cache management schemes may significantly limit the lifetime of NVM caches. We present LastingNVCache, a technique for improving lifetime of NVM caches by mitigating the intra-set write variation. LastingNVCache works on the key idea that by periodically flushing a frequently-written data-item, the next time the block can be made to load into a cold block in the set. Through this, the future writes to that data-item can be redirected from a hot block to a cold block, which leads to improvement in the cache lifetime. Microarchitectural simulations have shown that LastingNVCache provides 6.36X, 9.79X, and 10.94X improvement in lifetime for single, dual and quad-core systems. Also, its implementation overhead is small and it outperforms a recently proposed technique for improving lifetime of NVM caches.

Mittal, Sparsh [ORNL] [ORNL; Vetter, Jeffrey S [ORNL] [ORNL; Li, Dong [ORNL] [ORNL

2014-01-01T23:59:59.000Z

295

Real-time monitoring of volatile organic compounds using chemical ionization mass spectroscopy: Final report  

SciTech Connect (OSTI)

Volatile organic compound (VOC) emission to the atmosphere is of great concern to semiconductor manufacturing industries, research laboratories, the public, and regulatory agencies. Some industries are seeking ways to reduce emissions by reducing VOCs at the point of use (or generation). This paper discusses the requirements, design, calibration, and use of a sampling inlet/quadrupole mass spectrometer system for monitoring VOCs in a semiconductor manufacturing production line. The system uses chemical ionization to monitor compounds typically found in the lithography processes used to manufacture semiconductor devices (e.g., acetone, photoresist). The system was designed to be transportable from tool to tool in the production line and to give the operator real-time feedback so the process(es) can be adjusted to minimize VOC emissions. Detection limits ranging from the high ppb range for acetone to the low ppm range fore other lithography chemicals were achieved using chemical ionization mass spectroscopy at a data acquisition rate of approximately 1 mass spectral scan (30 to 200 daltons) per second. A demonstration of exhaust VOC monitoring was performed at a working semiconductor fabrication facility during actual wafer processing.

Thornberg, S.M.; Mowry, C.D.; Keenan, M.R.; Bender, S.F.A. [Sandia National Labs., Albuquerque, NM (United States). Gas Analysis Lab.; Owen, T. [Intel Corp., Rio Rancho, NM (United States)

1997-04-01T23:59:59.000Z

296

Scale-up analysis and development of gliding arc discharge facility for volatile organic compounds decomposition  

Science Journals Connector (OSTI)

The influences of inlet gas flow rate and reactor configuration on volatile organic compounds (VOCs) decomposition efficiency in a traditional gliding arc (T-GA) facility are studied based on laboratory experiments and numerical simulation. The ratio of the nozzle diameter and the shortest distance of two electrodes should be maintained in a suitable value range to guarantee the decomposition efficiency, which indicates simply enlarging the nozzle inner diameter is not a proper way to raise the T-GA treatment capacity in a fixed supply voltage condition. A developed gliding arc gas discharge (D-GA) reactor based on a modified gas feed system is proposed: small flow rate air goes through the bottom nozzle to process the GA evolution, and high flow rate contaminated gas goes frontal through the plasma region and decomposes. The performances of D-GA reactor in the decomposition of \\{VOCs\\} with relative high gas flow rate, including decomposition efficiency and specific energy consumption, are better than T-GA reactor. D-GA reactor also avoids the drawbacks of the increases of power system amount and electric power consumption in multi-electrode GA system.

Zheng Bo; Jianhua Yan; Xiaodong Li; Yong Chi; Kefa Cen

2008-01-01T23:59:59.000Z

297

A method to characterise the volatile release of solid recovered fuels (SRF)  

Science Journals Connector (OSTI)

A method was developed and successfully applied to characterise the de-volatilisation process of solid recovered fuels (SRF). Following the definitions of the European initiative on SRF standardisation CEN/TC 343, this kind of fuels have to be produced from non-hazardous bio-residues, mixed- and mono-waste streams, and they are designated to be used either in mono- or co-combustion processes. Consequently, SRF are in most cases heterogeneous fuel mixtures. The de-volatilisation process was identified as highly relevant due to the nature of fuel: most SRF components do not evolve a char comparable to coal. Furthermore, large particle sizes do not allow the application of common approaches to determine kinetic parameters. The method presented in this paper relies on thermo-gravimetric analysis (TGA). By successful combination with other well-established analytical procedures, the obtainable information towards the de-volatilisation process was largely improved. The method allows a quantification of energy and elemental distribution between volatiles and char during the de-volatilisation process in relation to the particle temperature. The data can be used to compare SRF or SRF components with other known fuels such as lignite and biomass. Moreover, the data is suitable as input data for combustion models. Focus of this paper is the analytical procedure including the required calculations. In addition, first results are presented and some ideas towards the use of the results are discussed.

Th. Hilber; M. Martensen; J. Maier; G. Scheffknecht

2007-01-01T23:59:59.000Z

298

Detection of Volatile Organics Using a Surface Acoustic Wave Array System  

SciTech Connect (OSTI)

A chemical sensing system based on arrays of surface acoustic wave (SAW) delay lines has been developed for identification and quantification of volatile organic compounds (VOCs). The individual SAW chemical sensors consist of interdigital transducers patterned on the surface of an ST-cut quartz substrate to launch and detect the acoustic waves and a thin film coating in the SAW propagation path to perturb the acoustic wave velocity and attenuation during analyte sorption. A diverse set of material coatings gives the sensor arrays a degree of chemical sensitivity and selectivity. Materials examined for sensor application include the alkanethiol-based self-assembled monolayer, plasma-processed films, custom-synthesized conventional polymers, dendrimeric polymers, molecular recognition materials, electroplated metal thin films, and porous metal oxides. All of these materials target a specific chemical fi.mctionality and the enhancement of accessible film surface area. Since no one coating provides absolute analyte specificity, the array responses are further analyzed using a visual-empirical region-of-influence (VERI) pattern recognition algorithm. The chemical sensing system consists of a seven-element SAW array with accompanying drive and control electronics, sensor signal acquisition electronics, environmental vapor sampling hardware, and a notebook computer. Based on data gathered for individual sensor responses, greater than 93%-accurate identification can be achieved for any single analyte from a group of 17 VOCs and water.

ANDERSON, LAWRENCE F.; BARTHOLOMEW, JOHN W.; CERNOSEK, RICHARD W.; COLBURN, CHRISTOPHER W.; CROOKS, R.M.; MARTINEZ, R.F.; OSBOURN, GORDON C.; RICCO, A.J.; STATON, ALAN W.; YELTON, WILLIAM G.

1999-10-14T23:59:59.000Z

299

Estimating Persistent Mass Flux of Volatile Contaminants from the Vadose Zone to Ground Water  

SciTech Connect (OSTI)

Contaminants may persist for long time periods within low permeability portions of the vadose zone where they cannot be effectively treated and are a potential continuing source of contamination to groundwater. Setting appropriate vadose zone remediation goals requires evaluating these persistent sources in terms of their impact on meeting groundwater remediation goals. One-dimensional approaches for estimating transport of volatile contaminants in the vadose zone are considered and compared to a one-dimensional flux-continuity-based assessment of vapor-phase contaminant movement from the vadose zone to the groundwater. The flux-continuity-based assessment demonstrates that the ability of the groundwater to move contaminant away from the water table controls the vapor-phase mass flux from the vadose zone across the water table. Limitations of the one-dimensional approaches are then discussed with respect to the need for further method development and application of two- or three-dimensional numerical modeling. The carbon tetrachloride (CT) plume at the U.S. Department of Energy Hanford Site is used as an example of a site where persistent vadose zone contamination needs to be considered in the context of groundwater remediation.

Truex, Michael J.; Oostrom, Martinus; Brusseau, Mark

2009-05-04T23:59:59.000Z

300

Effect of Oil Price Volatility on Tunisian Stock Market at Sector-level and Effectiveness of Hedging Strategy  

Science Journals Connector (OSTI)

Abstract In this work, our objective is to study in a first step links and interaction between oil and stock markets in Tunisia in terms of volatility at the sector-level, and then in a second step to determine the best hedging strategy for oil-stock portfolio against the risk of negative variation in stock market prices. Our methodology consist to model the data by a bivariate GARCH model to capture the effect in terms of volatility in the variation of the oil price on the different sector index, and to use the conditional variances and conditional correlation to calculate the hedging ratio and determinate the best hedging strategy. The empirical results indicate that the majority of relationships are unidirectional from the oil market to Tunisian stock market, and the conditional variance of a stock sector returns is affected not only by the volatility surprises of the stock market, but also by those of oil market. The model GARCH-BEKK is more effective than the others versions to minimize the risk of oil-stock portfolio.

Wajdi Hamma; Anis Jarboui; Ahmed Ghorbel

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Arid site characterization and technology assessment: Volatile Organic Compounds-Arid Integrated Demonstration  

SciTech Connect (OSTI)

The US Department of Energy`s (DOE`s) Volatile Organic Compounds-Arid Integrated Demonstration (VOC-Arid ID) program was initiated in March 1991 to evaluate technologies for all phases of remediation of VOCs in soils and groundwater at DOE arid/semiarid sites. The primary site for field demonstrations under the VOC-Arid ID program is the Hanford Site. The purpose of this report is to describe (1) the bases for technologies currently under evaluation in the VOC-Arid ID program; (2) the types of subsurface contamination at DOE arid/semiarid sites; and (3) the areas of potential common technology interests based on perceived technology needs at other DOE sites. This report was compiled by Pacific Northwest Laboratory in response to DOE`s Office of Technology Development`s mission to carry out an aggressive program to accelerate the development and implementation of new and existing technologies to meet a 30-year goal set by DOE in June 1989 to clean up all of its sites and to bring all sites into compliance with current and future environmental regulations. A key component of this program is the development of technologies that are better, faster, safer, and cheaper than those technologies currently available. Included in this report are an evaluation of technologies currently (fiscal year 1993) being pursued at the Hanford Site under the auspices of the VOC-Arid ID program, an assessment of subsurface contaminants at arid/semiarid sites, a summarization of technologies under consideration at other DOE sites, a discussion of areas of potential common technology interests, and the conclusions. Also included are a summary of the extent of contamination at the DOE arid/semiarid sites under consideration and a bibliography of source documents from which this report was prepared.

Riley, R.G.

1993-06-01T23:59:59.000Z

302

Effect of fermentation conditions on yeast growth and volatile composition of wine produced from mango (Mangifera indica L.) fruit juice  

Science Journals Connector (OSTI)

In this study mango juice fermentation at laboratory scale with controlled inoculation using selected yeast strain was performed (Saccharomyces cerevisiae 101). Effect of fermentation conditions (temperature, pH, SO2 and aeration) on wine fermentation was evaluated based on yeast growth, duration, fermentation rate and volatile composition. The composition of the major volatile compounds with low boiling points was determined by gas chromatography under the different operating conditions of fermentation temperature (1535C), pH (3.56.0), SO2 (100300ppm) and aeration (initial dissolved O2 and shaking at 30rpm). Temperature had important effect on yeast growth and on the levels of volatile compounds. It was observed that the final concentrations of ethyl acetate and some of the higher alcohols decreased when fermentation temperature increased to 25C (35mg/l at 15C and 27mg/l at 25C). SO2 stimulated the yeast growth up to certain level and in excess it inhibited the yeast metabolism. Ethanol concentration slightly increased with the addition of 100ppm SO2 (8.2g/l) and decreased with increase in concentration of SO2 (6.2g/l in 300ppm SO2). Aeration by shaking increased the viable cell count (from 52נ106 in the absence of oxygen to 98נ106 in shaking at 30rpm) but decreased the ethanol productivity (from 7.2 in initial dissolved O2 to 6.5g/l shaking at 30rpm). With the results obtained it was concluded that the temperature (25C), pH (5), SO2 (100ppm) and must with initial oxygen were optimum for better quality of wine from mango fruits. The results of the present study considering the traditionally recognized preference for low alcoholic fermentation temperatures in wine making.

L.V.A. Reddy; O.V.S. Reddy

2011-01-01T23:59:59.000Z

303

Volatile Composition of Sunflower Oil-in-Water Emulsions during Initial Lipid Oxidation:? Influence of pH  

Science Journals Connector (OSTI)

For static headspace gas chromatography (SHGC), 2 mL of emulsion was transferred into a 10 mL vial and incubated at 60 C for 10 min in the headspace unit of a Carlo Erba MEGA 5300 GC (Interscience bv, Breda, The Netherlands). ... The volatilities of the compounds in both emulsions were determined by SHGC, with and without addition of artificial saliva (Table 2), and their release was studied in the mouth model system combined with GC/SP (Table 3). ... In SHGC the peak areas of the compounds of the pH 6 emulsion were lower than those of the pH 3 emulsion. ...

Saskia M. van Ruth; Jacques P. Roozen; Maarten A. Posthumus; Frans Jos H. M. Jansen

1999-09-14T23:59:59.000Z

304

How do OPEC news and structural breaks impact returns and volatility in crude oil markets? Further evidence from a long memory process  

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Abstract Since its formation, OPEC through its conference decisions has been a major player in the world oil markets. The purpose of this paper is to examine the impacts of OPEC's different news announcements on the conditional expectations and volatility of crude oil markets in the presence of long memory and structural changes. To do so, we first discern OPEC's oil production behavior in response to its cut, maintain, and increase decisions. Then by applying the ARMAGARCH class models to the two global benchmarks WTI and Brent over the period May 1987 through December 2012, we find strong evidence of long memory. The empirical evidence also shows that OPEC's announcements especially the cut and the maintain decisions have a significant effect on both returns and volatility of the crude oil markets, particularly that of the WTI. Moreover, we explore the possibility of structural breaks in the crude oil prices and detect five (six) breakpoints for the WTI (Brent) oil markets. The presence of structural breaks reduces the persistence of volatility. Accounting for OPEC's scheduled news announcements in the presence of structural changes reduces the degree of volatility persistence and enhances the understanding of this volatility in the oil markets. These results have several implications for policy makers, oil traders and other participants in the crude oil markets.

Walid Mensi; Shawkat Hammoudeh; Seong-Min Yoon

2014-01-01T23:59:59.000Z

305

Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units  

SciTech Connect (OSTI)

Sixteen previously occupied temporary housing units (THUs) were studied to assess emissions of volatile organic compounds. The whole trailer emission factors wereevaluated for 36 VOCs including formaldehyde. Indoor sampling was carried out in the THUs located in Purvis staging yard in Mississippi, USA. Indoor temperature andrelative humidity (RH) were also measured in all the trailers during sampling. Indoor temperatures were varied (increased or decreased) in a selection of THUs using theheating, ventilation and air conditioning (HVAC) systems. Indoor temperatures during sampling ranged from 14o C to 33o C, and relative humidity (RH) varied between 35percentand 74percent. Ventilation rates were increased in some trailers using bathroom fans and vents during some of the sampling events. Ventilation rates measured during some aselection of sampling events varied from 0.14 to 4.3 h-1. Steady state indoor formaldehyde concentrations ranged from 10 mu g-m-3 to 1000 mu g-m-3. The formaldehyde concentrations in the trailers were of toxicological significance. The effects of temperature, humidity and ventilation rates were also studied. A linearregression model was built using log of percentage relative humidity, inverse of temperature (in K-1), and inverse log ACH as continuous independent variables, trailermanufacturer as a categorical independent variable, and log of the chemical emission factors as the dependent variable. The coefficients of inverse temperature, log relativehumidity, log inverse ACH with log emission factor were found to be statistically significant for all the samples at the 95percent confidence level. The regression model wasfound to explain about 84percent of the variation in the dependent variable. Most VOC concentrations measured indoors in the Purvis THUs were mostly found to be belowvalues reported in earlier studies by Maddalena et al.,1,2 Hodgson et al.,3 and Hippelein4. Emissions of TMPB-DIB (a plasticizer found in vinyl products) were found to be higher than values reported in comparable housing by Hodgson et al.,3. Emissions of phenol were also found to be slightly higher than values reported in earlier studies1,2,3. This study can assist in retrospective formaldehyde exposure assessments of THUs where estimates of the occupants indoor formaldehyde exposures are needed.

Parthasarathy, Srinandini; Maddalena, Randy L.; Russell, Marion L.; Apte, Michael G.

2010-10-01T23:59:59.000Z

306

A hybrid magnetic/complementary metal oxide semiconductor three-context memory bit cell for non-volatile circuit design  

SciTech Connect (OSTI)

After decades of continued scaling to the beat of Moore's law, it now appears that conventional silicon based devices are approaching their physical limits. In today's deep-submicron nodes, a number of short-channel and quantum effects are emerging that affect the manufacturing process, as well as, the functionality of the microelectronic systems-on-chip. Spintronics devices that exploit both the intrinsic spin of the electron and its associated magnetic moment, in addition to its fundamental electronic charge, are promising solutions to circumvent these scaling threats. Being compatible with the CMOS technology, such devices offer a promising synergy of radiation immunity, infinite endurance, non-volatility, increased density, etc. In this paper, we present a hybrid (magnetic/CMOS) cell that is able to store and process data both electrically and magnetically. The cell is based on perpendicular spin-transfer torque magnetic tunnel junctions (STT-MTJs) and is suitable for use in magnetic random access memories and reprogrammable computing (non-volatile registers, processor cache memories, magnetic field-programmable gate arrays, etc). To demonstrate the potential our hybrid cell, we physically implemented a small hybrid memory block using 45?nm 45?nm round MTJs for the magnetic part and 28?nm fully depleted silicon on insulator (FD-SOI) technology for the CMOS part. We also report the cells measured performances in terms of area, robustness, read/write speed and energy consumption.

Jovanovi?, B., E-mail: bojan.jovanovic@lirmm.fr, E-mail: lionel.torres@lirmm.fr; Brum, R. M.; Torres, L. [LIRMMUniversity of Montpellier 2/UMR CNRS 5506, 161 Rue Ada, 34095 Montpellier (France)

2014-04-07T23:59:59.000Z

307

The use of auxiliary ignition devices to improve combustion of low centane-high volatility fuels in a diesel engine  

SciTech Connect (OSTI)

The use of auxiliary ignition devices to improve the combustion of low cetane-high volatility fuels in a Diesel engine is described. Previous combustion with a low cetane-high volatility fuel (with a spark plug located at the periphery of the cylinder) resulted in engine knock at heavy loads and poor engine operation at light loads. In the present investigation, several new ignition devices were used to ignite the fuel in the center of the cylinder, to allow combustion to be controlled by rate of injection. The devices used were an extended spark electrode, a fuel spray deflector, a nozzle glow ring, and a nozzle fuel cage. High speed photography and heat release were used to characterize the ignition and combustion process of the low cetane fuel in conjunction with the ignition devices. Combustion with all of the ignition devices was initiated in the center of the cylinder, significantly reducing engine knock. The use of the auxiliary ignition devices to ignite the fuel in the center of the chamber demonstrated extended operation of the Diesel engine for all of the devices tested.

Stroia, B.L.; Abata. D.L.

1988-01-01T23:59:59.000Z

308

Methyl tert-butyl ether (MTBE) is a volatile organic com-pound (VOC) derived from natural gas that is added to gas-  

E-Print Network [OSTI]

Methyl tert-butyl ether (MTBE) is a volatile organic com- pound (VOC) derived from natural gas Water in Urban and Agricultural Areas made from methanol, which is derived primarily from natural gas that is added to gas- oline either seasonally or year round in many parts of the United States to increase

309

The price fluctuations of the stock market display fascinating properties. The volatility is around one order of magnitude too large than what is predicted  

E-Print Network [OSTI]

Abstract The price fluctuations of the stock market display fascinating properties. The volatility decisions. We also study the price formation and the microstructure of financial markets, at the level of the order book which organizes transactions. We explain why the price is diffusive despite the fact

Paris-Sud XI, Université de

310

Occurrence and Potential Human-Health Relevance of Volatile Organic Compounds in Drinking Water from Domestic Wells in the United States  

E-Print Network [OSTI]

Occurrence and Potential Human-Health Relevance of Volatile Organic Compounds in Drinking Water from Domestic Wells in the United States *Barbara L. Rowe1 , Patricia L. Toccalino2 , Michael J. Moran1 , John S. Zogorski1 , Curtis V. Price1 1 United States Geological Survey, Road, Rapid City, SD 57702 USA

311

Solid-Phase Microextraction in Combination with GCFID for Quantification of the Volatile Free Fatty Acids in Wastewater from Constructed Wetlands  

Science Journals Connector (OSTI)

......1,2), river water, or industrial and...phosphorus and nitrogen) removal processes...biotransformation of nitrogen in activated sludge...importance of VFAs in water treatment systems...spectrometry (14), gas chromatography...volatility, and solubility in water of VFAs......

Lin Feng; Yuming Huang; Hao Wang

2008-08-01T23:59:59.000Z

312

Communication accepte: Healthy Buildings/IAQ'97 Washington DC, septembre 1997Communication accepte: Healthy Buildings/IAQ'97 Washington DC, septembre 1997 DISCRIMINATION OF VOLATILE ORGANIC COMPOUNDS  

E-Print Network [OSTI]

Communication acceptée: Healthy Buildings/IAQ'97 Washington DC, septembre 1997Communication acceptée: Healthy Buildings/IAQ'97 Washington DC, septembre 1997 DISCRIMINATION OF VOLATILE ORGANIC manuscript, published in "4th International Conference on Healthy Buildings'97, Washington : United States

Paris-Sud XI, Université de

313

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. X, NO. Y, MONTH 2012 1 Volatility of Power Grids under Real-Time Pricing  

E-Print Network [OSTI]

for engineering modern power grids with the capacity to integrate renewable energy resources at large scale THE increasing demand for energy along with growing environmental concerns have led to a national agendaIEEE TRANSACTIONS ON POWER SYSTEMS, VOL. X, NO. Y, MONTH 2012 1 Volatility of Power Grids under

Bhatia, Sangeeta

314

Direct green extraction of volatile aroma compounds using vegetable oils as solvents: Theoretical and experimental solubility study  

Science Journals Connector (OSTI)

Abstract The current study aimed at evaluation of the dissolving power of various vegetable oils in both theoretical and experimental way for the extraction of volatile aroma compounds (VACs) from basil. The solubility of six main \\{VACs\\} from basil in ten vegetable oils was firstly investigated through a theoretical modeling of their Hansen solubility parameters (HSP), followed by real experimental extractions using vegetable oils as solvents instead of petroleum-based solvents such as dichloromethane. Furthermore, multivariate statistical analyses were performed to partition vegetable oils into clusters referring to their dissolving power of VACs, which could be quantified by gas chromatographymass spectroscopy (GCMS) coupling to the headspace solid phase micro-extraction (HS-SPME). The results indicated that the solubility of \\{VACs\\} in enriched vegetable oils was significantly different (psolvents for further application in green extraction of natural products, in which sunflower oil gave the best performance.

Ying Li; Anne Sylvie Fabiano-Tixier; Christian Ginies; Farid Chemat

2014-01-01T23:59:59.000Z

315

A fundamental approach for storage commodity classification  

E-Print Network [OSTI]

Combustion (J/kg) ?H g Heat of Gasification (J/kg) k ThermalH c ) to the heat of gasification (?H g ) shown in table 2.3and ?H g is its heat of gasification. Polymer ?H c (kJ/g) ?H

Gollner, Michael J.

2010-01-01T23:59:59.000Z

316

A fundamental approach for storage commodity classification  

E-Print Network [OSTI]

W/m 2 K) ?H c Heat of Combustion (J/kg) ?H g Heat ofvarious impetuses (i.e. heat of combustion) for burning to am ? f ) and effective heat of combustion, ?H c [24]. The HRR

Gollner, Michael J.

2010-01-01T23:59:59.000Z

317

Merrill Lynch Commodities | Open Energy Information  

Open Energy Info (EERE)

Id 49956 Utility Location Yes Ownership W Activity Buying Transmission Yes Activity Wholesale Marketing Yes This article is a stub. You can help OpenEI by expanding it. Utility...

318

Constllation Enrgy Commodities | Open Energy Information  

Open Energy Info (EERE)

Id 50043 Utility Location Yes Ownership W NERC Location RFC NERC RFC Yes Activity Wholesale Marketing Yes This article is a stub. You can help OpenEI by expanding it. Utility...

319

Speculative Execution Within A Commodity Operating System  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . 12 1.3.1 Conditions for success . . . . . . . . . . . . . . . . . . 13 1.4 Process-level speculative

Chen, Peter M.

320

Essays on Pricing Behaviors of Energy Commodities  

E-Print Network [OSTI]

fundamentals within a two-state Markov-switching framework. It is found that the regime-switching model does a better forecasting job in general than the linear fundamental model without regime-switching framework, especially in the case of 1-step...

Qin, Xiaoyan

2012-07-16T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" from the National Library of EnergyBeta (NLEBeta).
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321

Coal remains a hot commodity for Australia  

SciTech Connect (OSTI)

Based largely on analyses by the Australian Bureau of Agricultural and Resource Economics in late 2005 and early 2006, the article looks at the recent and near future export market for Australian coal. Demand in Asia is growing; European demand remains steady. Developments existing and new mines in Queensland are summarised in the article. 3 tabs.

Bram, L.

2006-02-15T23:59:59.000Z

322

Study on the Volatility of Cesium in Dry Ashing Pretreatment and Dissolution of Ash by Microwave Digestion System - 13331  

SciTech Connect (OSTI)

Based on the regulation of the activity concentration of Cs-137, Co-58, Co-60, Fe-55, Ni-59, Ni-63, Sr-90, Nb-94, and Tc-99, and the total alpha from the radioactive waste acceptance criteria, the measurement of the activity concentration of these nuclides in low and intermediate levels of radioactive waste such as in paper, cotton, vinyl and plastic samples was investigated. A dry ashing method was applied to obtain a concentration effect of the samples. Owing to the temperature dependence of the volatility for cesium, the temperature of 300 to 650 deg. C was examined. It was found that 450 deg. C is the optimum dry ashing temperature. After dry ashing, the produced ash was dissolved with HNO{sub 3}, HCl, and HF by a high-performance microwave digestion system. The ash sample, for the most part, was completely dissolved with 10 mL of HNO{sub 3}, 4 mL of HCl, and 0.25 mL of HF by a high-performance microwave digestion system using a nova high temperature rotor at 250 deg. C for 90 min until reaching 0.2 g. To confirm the reliability of cesium loss after the performance of the dry ashing procedure, a cesium standard solution for AAS and a Cs-137 standard solution for gamma spectrometry were added to a paper towel or a planchet of stainless steel, respectively. Cesium was measured by AAS, ICP-MS, and gamma spectrometry. The volatility of cesium did not occur until 450 deg. C ashing. (authors)

Choi, Kwang-Soon; Lee, Chang Heon; Ahn, Hong-Joo; Park, Yong Joon; Song, Kyuseok [Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, Daejeon, 305-353 (Korea, Republic of)] [Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, Daejeon, 305-353 (Korea, Republic of)

2013-07-01T23:59:59.000Z

323

J.f/tys.C/em.SotidsVol.47.No. It.p+%iifS-1128,1986 PrintedinGreatBritain.  

E-Print Network [OSTI]

method [l]. Pure and specially doped CdS single crystals or thin films have found increasing applications CRYSTALLINE n-CdS VIA THE TEMPERATURE DEPENDENCE OF PHOTOACOUSTIC AND PHOTOCURRENT SPECTRA TAMASDIOSZEGH simultaneously to pure high resistivity single crystals of n-CdS at room and low temperatures. The PA and PC

Mandelis, Andreas

324

Roles of rpoD, spoIIF, spoIIJ, spoIIN, and sin in regulation of Bacillus subtilis stage II sporulation-specific transcription.  

Science Journals Connector (OSTI)

...spoIIN, and sin in regulation of Bacillus subtilis stage II sporulation-specific...California, Berkeley 94720. Bacillus subtilis strains containing defects in...spoIIN, and sin in regulation of Bacillus subtilis stage II sporulation-specific...

P Louie; A Lee; K Stansmore; R Grant; C Ginther; T Leighton

1992-06-01T23:59:59.000Z

325

Experimental studies and thermodynamic modelling of volatilities of uranium, plutonium, and americium from their oxides and from their oxides interacted with ash  

SciTech Connect (OSTI)

The purpose of this study is to identify the types and amounts of volatile gaseous species of U, Pu, and Am that are produced in the combustion chamber offgases of mixed waste oxidation processors. Primary emphasis is on the Rocky Flats Plant Fluidized Bed Incinerator. Transpiration experiments have been carried out on U{sub 3}O{sub 8}(s), U{sub 3}O{sub 8} interacted with various ash materials, PuO{sub 2}(s), PuO{sub 2} interacted with ash materials, and a 3%PuO{sub 2}/0.06%AmO{sub 2}/ash material, all in the presence of steam and oxygen, and at temperatures in the vicinity of 1,300 K. UO{sub 3}(g) and UO{sub 2}(OH){sub 2}(g) have been identified as the uranium volatile species and thermodynamic data established for them. Pu and Am are found to have very low volatilities, and carryover of Pu and Am as fine dust particulates is found to dominate over vapor transport. The authors are able to set upper limits on Pu and Am volatilities. Very little lowering of U volatility is found for U{sub 3}O{sub 8} interacted with typical ashes. However, ashes high in Na{sub 2}O (6.4 wt %) or in CaO (25 wt %) showed about an order of magnitude reduction in U volatility. Thermodynamic modeling studies were carried out that show that for aluminosilicate ash materials, it is the presence of group I and group II oxides that reduces the activity of the actinide oxides. K{sub 2}O is the most effective followed by Na{sub 2}O and CaO for common ash constituents. A more major effect in actinide activity lowering could be achieved by adding excess group I or group II oxides to exceed their interaction with the ash and lead to direct formation of alkali or alkaline earth uranates, plutonates, and americates.

Krikorian, O.H.; Ebbinghaus, B.B.; Adamson, M.G.; Fontes, A.S. Jr.; Fleming, D.L.

1993-09-15T23:59:59.000Z

326

The mechanism of coking pressure generation II: Effect of high volatile matter coking coal, semi-anthracite and coke breeze on coking pressure and contraction  

Science Journals Connector (OSTI)

One of the most important aspects of the cokemaking process is to control and limit the coking pressure since excessive coking pressure can lead to operational problems and oven wall damage. Following on from a previous paper on plastic layer permeability we have studied the effect of contraction of semi-coke on coking pressure and the effect of organic additives on contraction. A link between contraction (or simulated contraction) outside the plastic layer and coking pressure was demonstrated. The interaction between this contraction, local bulk density around the plastic layer and the dependence of the permeability of the plastic layer on bulk density was discussed as possible mechanisms for the generation of coking pressure. The effect of blending either a high volatile matter coal or one of two semi-anthracites with low volatile matter, high coking pressure coals on the coking pressure of the binary blends has been explained using this mechanism.

Merrick Mahoney; Seiji Nomura; Koichi Fukuda; Kenji Kato; Anthony Le Bas; David R. Jenkins; Sid McGuire

2010-01-01T23:59:59.000Z

327

Consulting, Construction and Operating Results of a Full-Scale Biotechnological Plant for the Oxidation of Iron and Manganese with Simultaneous Elimination of Volatile Chlorinated Hydrocarbons from Ground Water  

Science Journals Connector (OSTI)

The ground water in the south part of Hannover, known ... Sdstadt, is partially polluted with volatile chlorinated hydrocarbons (C1HC). This contamination originated from a ... the factory stands as well as the...

V. Quentmeier; M. Saake

1990-01-01T23:59:59.000Z

328

Characterization of Volatile Compounds of Indian Cress Absolute by GC-Olfactometry/VIDEO-Sniff and Comprehensive Two-Dimensional Gas Chromatography  

Science Journals Connector (OSTI)

Characterization of Volatile Compounds of Indian Cress Absolute by GC-Olfactometry/VIDEO-Sniff and Comprehensive Two-Dimensional Gas Chromatography ... During the sniffing sessions, the sniffers were instructed (a) to signal each odor perceived by pressing a push button for as long as the odor lasted, (b) to describe the odors orally, and (c) to quantify their intensity on a five-point scale (2). ...

Katharina Breme; Pascal Tournayre; Xavier Fernandez; Uwe J. Meierhenrich; Hugues Brevard; Daniel Joulain; Jean Louis Berdague?

2009-11-18T23:59:59.000Z

329

Effects of the addition of water-filled bladders or volatile fatty acids to the rumen on the feeding behaviour in lactating dairy cows  

E-Print Network [OSTI]

tests (rumen bladders and VFA infusion) were carried out at 4, 9, 15 and 35 wk after calving in 4) was compared to a bladder-free control. In the second test, a con- tinuous infusion of 20.3 MJ/d volatile fatty- men was compared to a control infusion (7 g NaCl, 3.7 g KCI and 2.4 ml HCI 2 N perI water

Boyer, Edmond

330

Microcarbon residue yield and heteroatom partitioning between volatiles and solids for whole vacuum resids and their liquid chromatographic fractions  

SciTech Connect (OSTI)

Five petroleum >1000{degrees}F resids were separated into compound type fractions using liquid chromatography. The coking tendency of each compound type was assessed using the microcarbon residue (MCR) test (ASTM D 4530). Heteroatom (N, S, Ni, V) partitioning between MCR solids versus volatiles was determined through analysis of the starting fractions and the corresponding MCR solids. The weighted sum of MCR solid yields over all compound types in a given resid was typically in good agreement with the MCR yield of the whole resid. This finding agrees with prior studies indicating coke yield to be an additive property. Sulfur partitioning was also an additive property, was predictable from MCR yield, and was nearly independent of the initial form (sulfide, thiophenic, sulfoxide) present. Nitrogen and nickel partitioning were nonadditive and therefore composition dependent. Partitioning of vanadium into solids was essentially quantitative for all resids and their fractions. MCR solid yield was generally dependent only on H/C ratio. However, there is some evidence indicating secondary dependence on hydrocarbon structure; i.e., that naphthenic rings reduce MCR in proportion to H/C by virtue of their effective hydrogen transfer properties. Deposition of N and Ni into MCR solids over the fractions was often appreciably less than that of the whole resids, thereby indicating that interaction among various compound types was required for maximum incorporation of those elements into coke.

Green, J.B.; Shay, J.Y.; Reynolds, J.W.; Green, J.A.; Young, L.L.; White, M.E.

1993-10-01T23:59:59.000Z

331

EqualChance: Addressing Intra-set Write Variation to Increase Lifetime of Non-volatile Caches  

SciTech Connect (OSTI)

To address the limitations of SRAM such as high-leakage and low-density, researchers have explored use of non-volatile memory (NVM) devices, such as ReRAM (resistive RAM) and STT-RAM (spin transfer torque RAM) for designing on-chip caches. A crucial limitation of NVMs, however, is that their write endurance is low and the large intra-set write variation introduced by existing cache management policies may further exacerbate this problem, thereby reducing the cache lifetime significantly. We present EqualChance, a technique to increase cache lifetime by reducing intra-set write variation. EqualChance works by periodically changing the physical cache-block location of a write-intensive data item within a set to achieve wear-leveling. Simulations using workloads from SPEC CPU2006 suite and HPC (high-performance computing) field show that EqualChance improves the cache lifetime by 4.29X. Also, its implementation overhead is small, and it incurs very small performance and energy loss.

Mittal, Sparsh [ORNL; Vetter, Jeffrey S [ORNL

2014-01-01T23:59:59.000Z

332

Contribution of power and desalination plants to the levels of volatile liquid hydrocarbons in the nearby coastal areas of Kuwait  

SciTech Connect (OSTI)

The levels and distribution of volatile liquid hydrocarbons (VLHs) were determined in Kuwait`s coastal areas in the vicinity of outlets of power and desalination plants. About 230 samples were collected from the selected sampling locations over the 4 seasons. The VLHs in the samples were analyzed using Grob`s closed-loop stripping technique and GC with FID and confirmed by GC/MS. The results showed that significant levels of VLHs were present. The levels ranged from 307 to 6,500 ng/L and from 2,880 to 7,811 ng/L in Kuwait Bay and Sulaibekhat Bay, respectively. The annual average for VLHs near Al-Zor power plant ranged from 465 to 4,665 ng/L. Benzenoids formed the bulk (about 80%) of the VLHs present. Comparison with the levels in the outlets indicated that Doha West power plant contributed much higher levels of VLHs to the coastal areas than Al-Zor plant.

Saeed, T.; Khordagui, H.; Al-Hashash, H. [Kuwait Inst. for Scientific Research, Safat (Kuwait). Environmental Sciences Dept.] [Kuwait Inst. for Scientific Research, Safat (Kuwait). Environmental Sciences Dept.

1999-07-01T23:59:59.000Z

333

Air filters from HVAC systems as possible source of volatile organic compounds (VOC) laboratory and field assays  

Science Journals Connector (OSTI)

The emission of volatile organic compounds (VOC) from air filters of HVAC systems was to be evaluated. In a first study carbonyl compounds (14 aldehydes and two ketones) were measured by reacting them with 2,4-dinitrophenylhydrazine (DNPH). Analysis was done by HPLC and UV detection. In laboratory experiments pieces of used and unused HVAC filters were incubated in test chambers. Filters to be investigated were taken from a filter bank of a large HVAC system in the centre of Berlin. First results show that among those compounds formaldehyde and acetone were found in higher concentrations in the test chambers filled with used filters in comparison to those with unused filters. Parallel field measurements were carried out at the prefilter and main filter banks of the two HVAC systems. Here measurements were carried out simultaneously before and after the filters to investigate whether those aldehydes or ketones arise from the filter material on site. Formaldehyde and acetone significantly increased in concentration after the filters of one HVAC system. In parallel experiments microorganisms were proved to be able to survive on air filters. Therefore, a possible source of formaldehyde and acetone might be microbes.

Hans Schleibinger; Henning Rden

1999-01-01T23:59:59.000Z

334

Effects of oil drops containing Lactobacillus salivarius WB21 on periodontal health and oral microbiota producing volatile sulfur compounds  

Science Journals Connector (OSTI)

The objective of this paper is to evaluate the effects of oil drops containing Lactobacillus salivarius WB21 on periodontal health and oral microbiota producing volatile sulfur compounds (VSCs). For this study, 42 subjects were randomly assigned to receive oil samples containing L. salivarius WB21 or a placebo for two weeks. Oral assessment and saliva collection were performed on days 1 and 15. Bacterial analysis was performed using the real-time polymerase chain reaction and terminal restriction fragment length polymorphism (T-RFLP). In both the experimental and placebo groups, the average probing depth, number of periodontal pockets, and the percentage of bleeding on probing (BOP) decreased while stimulated salivary flow increased on day 15. BOP was reduced in the experimental group compared with the placebo group (P = 0.010). In the experimental group, total bacterial numbers decreased, and the number of L. salivarius increased. The number of Prevotella intermedia, which is correlated with hydrogen sulfide concentration in mouth air, increased in the placebo group and did not change in the experimental group. T-RFLP analysis found that the peak area proportions representing Porphyromonas gingivalis, P. intermedia, Tannerella forsythensis, and Fusobacterium nucleatum decreased in the experimental group, although there was no significant change in the bacterial composition. Thus we observed oil drops containing L. salivarius WB21 improved BOP and inhibited the reproduction of total and VSC-producing periodontopathic bacteria compared with the placebo group, but also showed the limit of its efficacy in controlling VSCs producing and periodontal pathogens.

Nao Suzuki; Kazunari Tanabe; Toru Takeshita; Masahiro Yoneda; Tomoyuki Iwamoto; Sueko Oshiro; Yoshihisa Yamashita; Takao Hirofuji

2012-01-01T23:59:59.000Z

335

Improved volatile fatty acid and biomethane production from lipid removed microalgal residue (LR?AR) through pretreatment  

Science Journals Connector (OSTI)

Abstract Renewable energy from lipid removed microalgal residues (LR?ARs) serves as a promising tool for sustainable development of the microalgal biodiesel industry. Hence, in this study, LR?AR from Ettlia sp. was characterized for its physico-biochemical parameters, and applied to various pretreatment to increase the biodegradability and used in batch experiments for the production of volatile fatty acids (VFA) and biomethane. After various pretreatments, the soluble organic matters were increased at a maximum of 82% in total organic matters in alkali-autoclaved sample. In addition, VFA and methane production was enhanced by 30% and 40% in alkali-sonicated and alkali-autoclaved samples, respectively. Methane heating value was recovered at maximum of 6.6MJkg?1VS in alkali-autoclaved conditions with comparison to non-pretreated samples. The pretreatment remarkably improved LR?AR solubilization and enhanced VFA and biomethane production, which holds immense potential to eventually reduce the cost of algal biodiesel.

Arumuganainar Suresh; Charles Seo; Ho Nam Chang; Yeu-Chun Kim

2013-01-01T23:59:59.000Z

336

Development of a new generation of waste form for entrapment and immobilization of highly volatile and soluble radionuclides.  

SciTech Connect (OSTI)

The United States is now re-assessing its nuclear waste disposal policy and re-evaluating the option of moving away from the current once-through open fuel cycle to a closed fuel cycle. In a closed fuel cycle, used fuels will be reprocessed and useful components such as uranium or transuranics will be recovered for reuse. During this process, a variety of waste streams will be generated. Immobilizing these waste streams into appropriate waste forms for either interim storage or long-term disposal is technically challenging. Highly volatile or soluble radionuclides such as iodine ({sup 129}I) and technetium ({sup 99}Tc) are particularly problematic, because both have long half-lives and can exist as gaseous or anionic species that are highly soluble and poorly sorbed by natural materials. Under the support of Sandia National Laboratories (SNL) Laboratory-Directed Research & Development (LDRD), we have developed a suite of inorganic nanocomposite materials (SNL-NCP) that can effectively entrap various radionuclides, especially for {sup 129}I and {sup 99}Tc. In particular, these materials have high sorption capabilities for iodine gas. After the sorption of radionuclides, these materials can be directly converted into nanostructured waste forms. This new generation of waste forms incorporates radionuclides as nano-scale inclusions in a host matrix and thus effectively relaxes the constraint of crystal structure on waste loadings. Therefore, the new waste forms have an unprecedented flexibility to accommodate a wide range of radionuclides with high waste loadings and low leaching rates. Specifically, we have developed a general route for synthesizing nanoporous metal oxides from inexpensive inorganic precursors. More than 300 materials have been synthesized and characterized with x-ray diffraction (XRD), BET surface area measurements, and transmission electron microscope (TEM). The sorption capabilities of the synthesized materials have been quantified by using stable isotopes I and Re as analogs to {sup 129}I and {sup 99}Tc. The results have confirmed our original finding that nanoporous Al oxide and its derivatives have high I sorption capabilities due to the combined effects of surface chemistry and nanopore confinement. We have developed a suite of techniques for the fixation of radionuclides in metal oxide nanopores. The key to this fixation is to chemically convert a target radionuclide into a less volatile or soluble form. We have developed a technique to convert a radionuclide-loaded nanoporous material into a durable glass-ceramic waste form through calcination. We have shown that mixing a radionuclide-loaded getter material with a Na-silicate solution can effectively seal the nanopores in the material, thus enhancing radionuclide retention during waste form formation. Our leaching tests have demonstrated the existence of an optimal vitrification temperature for the enhancement of waste form durability. Our work also indicates that silver may not be needed for I immobilization and encapsulation.

Rodriguez, Mark Andrew; Bencoe, Denise Nora; Brinker, C. Jeffrey; Murphy, Andrew Wilson; Holt, Kathleen Caroline; Turnham, Rigney; Kruichak, Jessica Nicole; Tellez, Hernesto; Miller, Andy; Xiong, Yongliang; Pohl, Phillip Isabio; Ockwig, Nathan W.; Wang, Yifeng; Gao, Huizhen

2010-09-01T23:59:59.000Z

337

Quantifying the value that energy efficiency and renewable energy provide as a hedge against volatile natural gas prices  

SciTech Connect (OSTI)

Advocates of energy efficiency and renewable energy have long argued that such technologies can mitigate fuel price risk within a resource portfolio. Such arguments--made with renewed vigor in the wake of unprecedented natural gas price volatility during the winter of 2000/2001--have mostly been qualitative in nature, however, with few attempts to actually quantify the price stability benefit that these sources provide. In evaluating this benefit, it is important to recognize that alternative price hedging instruments are available--in particular, gas-based financial derivatives (futures and swaps) and physical, fixed-price gas contracts. Whether energy efficiency and renewable energy can provide price stability at lower cost than these alternative means is therefore a key question for resource acquisition planners. In this paper we evaluate the cost of hedging gas price risk through financial hedging instruments. To do this, we compare the price of a 10-year natural gas swap (i.e., what it costs to lock in prices over the next 10 years) to a 10-year natural gas price forecast (i.e., what the market is expecting spot natural gas prices to be over the next 10 years). We find that over the past two years natural gas users have had to pay a premium as high as $0.76/mmBtu (0.53/242/kWh at an aggressive 7,000 Btu/kWh heat rate) over expected spot prices to lock in natural gas prices for the next 10 years. This incremental cost to hedge gas price risk exposure is potentially large enough - particularly if incorporated by policymakers and regulators into decision-making practices - to tip the scales away from new investments in variable-price, natural gas-fired generation and in favor of fixed-price investments in energy efficiency and renewable energy.

Bolinger, Mark; Wiser, Ryan; Bachrach, Devra; Golove, William

2002-05-15T23:59:59.000Z

338

Food price volatility  

Science Journals Connector (OSTI)

...much lower on the political agenda in the...Despite the inherent risks in agricultural...markets and crop insurance. While these...measures of price risk management (Morgan 2001). Insurance markets are well...not for price risk. Futures and...

2010-01-01T23:59:59.000Z

339

How to utilize hedging and a fuel surcharge program to stabilize the cost of fuel  

E-Print Network [OSTI]

This paper looks at some of these travails as well as the common tools used to approach a volatile priced commodity, diesel fuel. It focuses on the impacts of hedging for companies that are directly impacted through the ...

Shehadi, Charles A., III (Charles Anthony)

2010-01-01T23:59:59.000Z

340

Electrochemical Performance and Stability of the Cathode for Solid Oxide Fuel Cells: III. Role of volatile boron species on LSM/YSZ and LSCF  

SciTech Connect (OSTI)

Boron oxide is a key component to tailor the softening temperature and viscosity of the sealing glass for solid oxide fuel cells. The primary concern regarding the use of boron containing sealing glasses is the volatility of boron species, which possibly results in cathode degradation. In this paper, we report the role of volatile boron species on the electrochemical performance of LSM/YSZ and LSCF cathodes at various SOFC operation temperatures. The transport rate of boron, ~ 3.2410-12 g/cm2sec was measured at 750C with air saturated with 2.8% moisture. A reduction in power density was observed in cells with LSM/YSZ cathodes after introduction of the boron source to the cathode air stream. Partial recovery of the power density was observed after the boron source was removed. Results from post-test secondary ion mass spectroscopy (SIMS) analysis the partial recovery in power density correlated with partil removal of the deposited boron by the clean air stream. The presence of boron was also observed in LSCF cathodes by SIMS analysis, however the effect of boron on the electrochemical performance of LSCF cathode was negligible. Coverage of triple phase boundaries in LSM/YSZ was postulated as the cause for the observed reduction in electrochemical performance.

Zhou, Xiao Dong; Templeton, Jared W.; Zhu, Zihua; Chou, Y. S.; Maupin, Gary D.; Lu, Zigui; Brow, R. K.; Stevenson, Jeffry W.

2010-09-02T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Final Report - Glass Formulation Testing to Increase Sulfate Volatilization from Melter, VSL-04R4970-1, Rev. 0, dated 2/24/05  

SciTech Connect (OSTI)

The principal objectives of the DM100 and DM10 tests were to determine the impact of four different organics and one inorganic feed additive on sulfate volatilization and to determine the sulfur partitioning between the glass and the off-gas system. The tests provided information on melter processing characteristics and off-gas data including sulfur incorporation and partitioning. A series of DM10 and DM100 melter tests were conducted using a LAW Envelope A feed. The testing was divided into three parts. The first part involved a series of DM10 melter tests with four different organic feed additives: sugar, polyethylene glycol (PEG), starch, and urea. The second part involved two confirmatory 50-hour melter tests on the DM100 using the best combination of reductants and conditions based on the DM10 results. The third part was performed on the DM100 with feeds containing vanadium oxide (V{sub 2}O{sub 5}) as an inorganic additive to increase sulfur partitioning to the off-gas. Although vanadium oxide is not a reductant, previous testing has shown that vanadium shows promise for partitioning sulfur to the melter exhaust, presumably through its known catalytic effect on the SO{sub 2}/SO{sub 3} reaction. Crucible-scale tests were conducted prior to the melter tests to confirm that the glasses and feeds would be processable in the melter and that the glasses would meet the waste form (ILAW) performance requirements. Thus, the major objectives of these tests were to: ? Perform screening tests on the DM10 followed by tests on the DM100-WV system using a LAW -Envelope A feed with four organic additives to assess their impact on sulfur volatilization. ? Perform tests on the DM100-WV system using a LAW -Envelope A feed containing vanadium oxide to assess its impact on sulfur volatilization. ? Determine feed processability and product quality with the above additives. ? Collect melter emissions data to determine the effect of additives on sulfur partitioning and melter emissions. ? Collect and analyze discharged glass to determine sulfur retention in the glass. ? Prepare and characterize feeds and glasses with the additives to confirm that the feeds and the glass melts are suitable for processing in the DM100 melter. ? Prepare and characterize glasses with the additives to confirm that the glasses meet the waste form (ILAW) performance requirements.

Kruger, Albert A.; Matlack, K. A.; Pegg, I. L.; Gong, W.

2013-11-13T23:59:59.000Z

342

PCBs and OCPs on a East-to-West Transect: The Importance of Major Currents and Net Volatilization for PCBs in the Atlantic Ocean  

Science Journals Connector (OSTI)

PCBs and OCPs on a East-to-West Transect: The Importance of Major Currents and Net Volatilization for PCBs in the Atlantic Ocean ... In summary, we collected and analyzed samples collected across the tropical Atlantic to deduce whether (i) there were significant eastwest and northsouth gradients of selected PCB congeners and OCPs; (ii) the Atlantic Ocean was a net sink or secondary source of PCBs and OCPs; (iii) ocean current and river plumes would affect the presence and airwater gradients of selected POPs; and (iv) to compare active and passive sampling approaches for POPs. ... Iwata, H.; Tanabe, S.; Sakai, N.; Tatsukawa, R.Distribution of Persistent Organochlorines in the Oceanic Air and Surface Seawater and the Role of Oceans on Their Global Transport and Fate Environ. ...

Rainer Lohmann; Jana Klanova; Petr Kukucka; Shifra Yonis; Kevyn Bollinger

2012-02-02T23:59:59.000Z

343

Identification of volatile butyl rubber thermal-oxidative degradation products by cryofocusing gas chromatography/mass spectrometry (cryo-GC/MS).  

SciTech Connect (OSTI)

Chemical structure and physical properties of materials, such as polymers, can be altered as aging progresses, which may result in a material that is ineffective for its envisioned intent. Butyl rubber formulations, starting material, and additives were aged under thermal-oxidative conditions for up to 413 total days at up to 124 %C2%B0C. Samples included: two formulations developed at Kansas City Plant (KCP) (%236 and %2310), one commercially available formulation (%2321), Laxness bromobutyl 2030 starting material, and two additives (polyethylene AC-617 and Vanax MBM). The low-molecular weight volatile thermal-oxidative degradation products that collected in the headspace over the samples were preconcentrated, separated, and detected using cryofocusing gas chromatography mass spectrometry (cryo-GC/MS). The majority of identified degradation species were alkanes, alkenes, alcohols, ketones, and aldehydes. Observations for Butyl %2310 aged in an oxygen-18 enriched atmosphere (18O2) were used to verify when the source of oxygen in the applicable degradation products was from the gaseous environment rather than the polymeric mixture. For comparison purposes, Butyl %2310 was also aged under non-oxidative thermal conditions using an argon atmosphere.

Smith, Jonell Nicole; White, Michael Irvin; Bernstein, Robert; Hochrein, James Michael

2013-02-01T23:59:59.000Z

344

Development of efficiency-enhanced cogeneration system utilizing high-temperature exhaust-gas from a regenerative thermal oxidizer for waste volatile-organic-compound gases  

Science Journals Connector (OSTI)

We have developed a gas-turbine cogeneration system that makes effective use of the calorific value of the volatile organic compound (VOC) gases exhausted during production processes at a manufacturing plant. The system utilizes the high-temperature exhaust-gas from the regenerative thermal oxidizer (RTO) which is used for incinerating VOC gases. The high-temperature exhaust gas is employed to resuperheat the steam injected into the gasturbine. The steam-injection temperature raised in this way increases the heat input, resulting in the improved efficiency of the gas-turbine. Based on the actual operation of the system, we obtained the following results: Operation with the steam-injection temperature at 300C (45C resuperheated from 255C) increased the efficiency of the gasturbine by 0.7%. The system can enhance the efficiency by 1.3% when the steam-injection temperature is elevated to 340C (85C resuperheated). In this case, up to 6.6 million yen of the total energy cost and 400 tons of carbon dioxide (CO2) emissions can be reduced annually. A gas-turbine cogeneration and RTO system can reduce energy consumption by 23% and CO2 emission by 30.1% at the plant.

Masaaki Bannai; Akira Houkabe; Masahiko Furukawa; Takao Kashiwagi; Atsushi Akisawa; Takuya Yoshida; Hiroyuki Yamada

2006-01-01T23:59:59.000Z

345

Thermal Desorption-Gas Chromatography or Gas Chromatography-Mass Spectrometry for Analysis of Semi-Volatile Compounds on Atmospheric Particulate Matters  

Science Journals Connector (OSTI)

Abstract A thermal desorption (TD) device was developed and coupled to gas chromatograph (GC) or gas chromatograph-mass spectrometer (GC-MS) for the qualitative and quantitative analysis of semi-volatile organic compounds on atmospheric particulate matters (PM). The TD was operated by direct heating and placed on the top of GC injector, leading to high heating rate and easy transfer of analytes to GC without re-focusing of analytes by cold trap. The materials used for supporting PM samples, desorption temperature and time, and types of sample injection were investigated for the detection of sixteen polycyclic aromatic hydrocarbons (PAHs) and nine n-alkanes. The limits of detection of the proposed TD-GC method were in the range of 0.0140.094 ng for PAHs, and 0.0160.026 ng for n-alkanes, with coefficients of correlation above 0.9975. The TD-GC method was applied to the determination of trace \\{PAHs\\} and n-alkanes on PM10 samples from three cities. The recoveries were in the range of 95%135% (PAHs) and 95%115% (n-alkanes). Finally, the TD was coupled to GC-MS for comparison of the contents of \\{PAHs\\} and n-alkanes on \\{PMx\\} with different particulate size (x = 10, 5, 2, 1, 0.5, 0.25, 0.1).

Hu MENG; Jing-Hong ZHAO; Chun-Feng DUAN; Liang HAO; Ya-Feng GUAN

2014-01-01T23:59:59.000Z

346

Development and test of a cryogenic trap system dedicated to confinement of radioactive volatile isotopes in SPIRAL2 post-accelerator  

Science Journals Connector (OSTI)

A cryogenic trap system called Cryotrap has been studied and developed in the framework of nuclear safety studies for SPIRAL2 accelerator. The main objective of Cryotrap is to confine and reduce strongly the migration of radioactive volatile isotopes in beam lines. These radioactive gases are produced after interaction between a deuteron beam and a fissile target. Mainly, Cryotrap is composed by a vacuum vessel and two copper thermal screens maintained separately at two temperatures T1=80K and T2=20K. A Cryocooler with two stages at previous temperatures is used to remove static heat losses of the cryostat and ensure an efficient cooling of the system. Due to strong radiological constraints that surround Cryotrap, the coupling system between Cryocooler and thermal screens is based on aluminum thermo-mechanical contraction. The main objective of this original design is to limit direct human maintenance interventions and provide maximum automated operations. A preliminary prototype of Cryotrap has been developed and tested at GANIL laboratory to validate its design, and determine its thermal performance and trapping efficiency. In this paper, we will first introduce briefly SPIRAL2 project and discuss the main role of Cryotrap in nuclear safety of the accelerator. Then, we will describe the proposed conceptual design of Cryotrap and its main characteristics. After that, we will focus on test experiment and analyze experimental data. Finally, we will present preliminary results of gas trapping efficiency tests.

M. Souli; P. Dolgiviez; M. Fadil; P. Gallardo; R. Levallois; H. Munoz; M. Ozille; G. Rouill; F. Galet

2011-01-01T23:59:59.000Z

347

Experimental and Modeling Study of the Flammability of Fuel Tank Headspace Vapors from Ethanol/Gasoline Fuels; Phase 3: Effects of Winter Gasoline Volatility and Ethanol Content on Blend Flammability; Flammability Limits of Denatured Ethanol  

SciTech Connect (OSTI)

This study assessed differences in headspace flammability for summertime gasolines and new high-ethanol content fuel blends. The results apply to vehicle fuel tanks and underground storage tanks. Ambient temperature and fuel formulation effects on headspace vapor flammability of ethanol/gasoline blends were evaluated. Depending on the degree of tank filling, fuel type, and ambient temperature, fuel vapors in a tank can be flammable or non-flammable. Pure gasoline vapors in tanks generally are too rich to be flammable unless ambient temperatures are extremely low. High percentages of ethanol blended with gasoline can be less volatile than pure gasoline and can produce flammable headspace vapors at common ambient temperatures. The study supports refinements of fuel ethanol volatility specifications and shows potential consequences of using noncompliant fuels. E85 is flammable at low temperatures; denatured ethanol is flammable at warmer temperatures. If both are stored at the same location, one or both of the tanks' headspace vapors will be flammable over a wide range of ambient temperatures. This is relevant to allowing consumers to splash -blend ethanol and gasoline at fueling stations. Fuels compliant with ASTM volatility specifications are relatively safe, but the E85 samples tested indicate that some ethanol fuels may produce flammable vapors.

Gardiner, D. P.; Bardon, M. F.; Clark, W.

2011-07-01T23:59:59.000Z

348

The Relationship between Bulk Commodity and Chinese Steel Prices  

E-Print Network [OSTI]

Iron ore and coking coal are complementary inputs for steelmaking and therefore their prices are closely related to steel prices. Historically, trade in iron ore and coking coal was based on long-term contracts, but in recent years there has been a shift towards shorter-term pricing, including on the spot market, and consequently prices reflect market developments more quickly. This article analyses the relationship between the spot prices for iron ore, coking coal and Chinese steel products, and finds that in the short run the spot price for iron ore has tended to overshoot its long-run equilibrium following an unexpected change in Chinese steel prices.

Mark Caputo; Tim Robinson; Hao Wang

349

Rapid Distribution of Tasks on a Commodity Grid  

E-Print Network [OSTI]

applications. Exam- ples are SETI@Home [16], Folding@Home [13], the cryptographic challenges sponsored by RSA

Turgut, Damla

350

E-Print Network 3.0 - agricultural commodities opportunities...  

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

Theater, MSU-Bozeman 282B Strand Union Building Summary: and outreach programs focus on bioenergy production opportunities, agricultural policy and consumer economics......

351

Microsoft PowerPoint - Regulating Energy Commodities.ppt [Compatibilit...  

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

Training Monitoring and Surveillance Risk Assessment Review Key Factor - Knowledge Know your business Read the headlines Keep up with Regulatory updates...

352

Technical Analysis of Commodity Markets: Emphasis on Bar Charts  

E-Print Network [OSTI]

the daily low at B, the two daily lows at A and B can be connect- R i s k M a n a g e men t E d u c a t i o n ? L-5307 RM2-24 5-99 Figure 1. Price Quantity S D P E *Alumni Distinguished Professor, Agricultural and Applied Economics Department, and Director.... The feeder cattle chart in Figure 3 shows a rally reaching above $75 in October. The late October price highs will provide major resistance if the price can climb back to those levels. Sell orders placed just below that resistance plane could...

Purcell, Wayne D.

1999-07-12T23:59:59.000Z

353

Stochastic Modeling and Analysis of Energy Commodity Spot Price Processes.  

E-Print Network [OSTI]

??Supply and demand in the World oil market are balanced through responses to price movement with considerable complexity in the evolution of underlying supply-demand expectation (more)

Otunuga, Olusegun Michael

2014-01-01T23:59:59.000Z

354

Simple classification of walking activities using commodity smart phones  

Science Journals Connector (OSTI)

People interact with mobile computing devices everywhere, while sitting, walking, running or even driving. Adapting the interface to suit these contexts is important, thus this paper proposes a simple human activity classification system. Our approach ... Keywords: accelerometer, activity classification, context-aware, mobile computing, sensor technology, ubiquitous computing, user experience, user interface

Zachary Fitz-Walter; Dian Tjondronegoro

2009-11-01T23:59:59.000Z

355

Electrosynthesis of Commodity Chemicals by an Autotrophic Microbial Community  

Science Journals Connector (OSTI)

...sensitivity and speed of chimera detection. Bioinformatics 27 :2194-2200. 10. EERE. 2010. Vehicle Technologies Program: natural gas basics. DOE/GO-102010-3068. EERE/U.S. Department of Energy, Washington, DC. 11. Eid, J , et al...

Christopher W. Marshall; Daniel E. Ross; Erin B. Fichot; R. Sean Norman; Harold D. May

2012-09-21T23:59:59.000Z

356

Curse or blessing? : challenges of commodity-based economies  

E-Print Network [OSTI]

The idea that massive natural resource endowments would lead countries to weak economic growth and development is counterintuitive. Oil, gas, copper, gold or other resource riches should, at least in theory, spearhead ...

Kasprzyk, Damian, S.M. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

357

Euro Working Group for Commodities and Financial Modelling 2014  

E-Print Network [OSTI]

.A.; MEADE N. Factor Neutral Portfolios FOYE J. Rethinking the International Application of the Factor Models - ROOM 4064 CONTRIBUTED SESSION: ENERGY CHAIR: D'ECCLESIA R. PISCIELLA P.; VESPUCCI M. T.; BERTOCCHI M generation capacity expansion CALDANA R.; FUSAI G.; RONCORONI A. On the Rational Construction of Electricity

Schettini, Raimondo

358

Modelling commodity prices in the Australian National Electricity Market.  

E-Print Network [OSTI]

??Beginning in the early 1990s several countries, including Australia, have pursued programs of deregulation and restructuring of their electricity supply industries. Dissatisfaction with state-run monopoly (more)

Thomas, S

2007-01-01T23:59:59.000Z

359

Kylix: A Sparse Allreduce for Commodity Clusters Huasha Zhao  

E-Print Network [OSTI]

. In this work we are looking to obtain an order of magnitude improvement in the throughput of the allreduce. By communicating only those values that are needed by the nodes Sparse Allreduce can achieve orders- of-magnitude all layers a small constant larger than the top layer, which is close to optimal. A chart of network

Canny, John

360

Egypt-US commodity trade and the J-curve  

Science Journals Connector (OSTI)

Almost 73% of trade between Egypt and the USA involves the 36 industries for which continuous quarterly data are available over the period 1994I to 2007IV. We take advantage of this rich data set and test the J-curve hypothesis for each of the 36 industries. By relying upon a new definition of the J-curve, i.e., short-run deterioration combined with the long-run improvement of the trade balance subsequent to currency depreciation, we find evidence in support of the new definition in 16 industries. Previous research that used aggregate trade data could not support the phenomenon.

Mohsen Bahmani-Oskooee; Amr Sadek Hosny

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Restricted Commodity & Routing List Page 1 of 2 April2013  

E-Print Network [OSTI]

Office Trailers Campus Purchasing and Risk Management Personal items: Refrigerators, Microwaves, coffee&S Environ. and Campus Purchasing Stacey Calloway Ali Aghayan Alcoholic beverages Campus Purchasing Animals&S Dive and Campus Purchasing Eric Hessell Dave Vandenberg Carpets, rugs & floor coverings Design

Bigelow, Stephen

362

Commodity Price Interaction: CO2 Allowances, Fuel Sources and Electricity  

Science Journals Connector (OSTI)

This work anlyses the relationship between the returns for carbon, electricity and fossil fuel price (coal, oil and natural gas), ... in carbon are not strongly reflected in electricity prices. Also, market power...

Mara Madaleno; Carlos Pinho; Cludia Ribeiro

2014-01-01T23:59:59.000Z

363

Managing in a Commodity World University of Alberta  

E-Print Network [OSTI]

Copper Aluminum Iron Potash Oil Coking Coal Uranium Gold Average Source: USGS Mineral Information, LME Resources Limited Jim Popowich, Mining Guy at Large January 2011 Teck Coal Safety Culture Growth and Safety · The met coal industry ­ a case study on price increases and cost pressures · DCF Examples 4 A look back

Boisvert, Jeff

364

ACCELERATING REGULARIZED ITERATIVE CT RECONSTRUCTION ON COMMODITY GRAPHICS HARDWARE (GPU)  

E-Print Network [OSTI]

overhead to very moderate levels. Index Terms-- Iterative Reconstruction, Computed Tomography, Ordered Klaus Mueller Center for Visual Computing, Computer Science Department, Stony Brook University ABSTRACT) is the overall theme in many efforts to lower these exposures. Effective methods here include limiting either

Mueller, Klaus

365

Electrosynthesis of Commodity Chemicals by an Autotrophic Microbial Community  

Science Journals Connector (OSTI)

...the process toward economic feasibility. INTRODUCTION...shift away from coal and oil to alternative...Based on the CV analysis of the brewery waste...Exoelectrogenic bacteria that power microbial fuel cells...rRNA gene sequence analysis. Appl. Environ...the process toward economic feasibility...

Christopher W. Marshall; Daniel E. Ross; Erin B. Fichot; R. Sean Norman; Harold D. May

2012-09-21T23:59:59.000Z

366

Electrosynthesis of Commodity Chemicals by an Autotrophic Microbial Community  

Science Journals Connector (OSTI)

...electrosynthesis, advancing the process toward economic feasibility. INTRODUCTION The U...environmental concerns, a shift away from coal and oil to alternative energy sources...electrosynthesis, advancing the process toward economic feasibility. | Department of Microbiology...

Christopher W. Marshall; Daniel E. Ross; Erin B. Fichot; R. Sean Norman; Harold D. May

2012-09-21T23:59:59.000Z

367

Commodity chemicals from natural gas by methane chlorination  

SciTech Connect (OSTI)

Ethylene and vinyl chloride monomer (VCM) can be produced from natural gas through methane chlorination by reacting methane and chlorine at 900/sup 0/C or higher. Experimental results indicate total ethylene equivalent yield from methane of 45%(wt) and marginal process economics. Fundamental kinetic modeling predicts improved C/sub 2/ yields of up to 70%(wt) at optimum reaction conditions. This optimum condition established the basis for the process design study to evaluate the potential for producing ethylene and VCM from natural gas. HCl by-product is recycled for economic viability. Using the Kel-Chlor process for recycling HCl, the proposed plant produces 27,200 TPA of C/sub 2/H/sub 4/ and 383,800 TPA of VCM. The Midwest is an ethylene consumption area requiring imports of ethylene derivatives from other regions. A methane chlorination plant located on a Midwestern natural gas pipeline network has a good commercial potential.

Che, S.C.; Minet, R.G.; Giacobbe, F.; Mullick, S.L.

1987-01-01T23:59:59.000Z

368

Stronger Multi-Commodity Flow Formulations of the Capacitated ...  

E-Print Network [OSTI]

demand of customer i ? Vc is qi. .... The constraints (11) ensure that each customer i receives the demand of qi. ...... tions of vehicle routing in the oil industry.

2014-06-18T23:59:59.000Z

369

Exhaust emissions of volatile organic compounds of powered two-wheelers: Effect of cold start and vehicle speed. Contribution to greenhouse effect and tropospheric ozone formation  

Science Journals Connector (OSTI)

Abstract Powered two-wheeler (PTW) vehicles complying with recent European type approval standards (stages Euro 2 and Euro 3) were tested on chassis dynamometer in order to measure exhaust emissions of about 25 volatile organic compounds (VOCs) in the range C1C7, including carcinogenic compounds as benzene and 1,3-butadiene. The fleet consists of a moped (engine capacity?50cm3) and three fuel injection motorcycles of different engine capacities (150, 300 and 400cm3). Different driving conditions were tested (US FPT cycle, constant speed). Due to the poor control of the combustion and catalyst efficiency, moped is the highest pollutant emitter. In fact, fuel injection strategy and three way catalyst with lambda sensor are able to reduce VOC motorcycles' emission of about one order of magnitude with respect to moped. Cold start effect, that is crucial for the assessment of actual emission of \\{PTWs\\} in urban areas, was significant: 3051% of extra emission for methane. In the investigated speed range, moped showed a significant maximum of VOC emission factor at minimum speed (10km/h) and a slightly decreasing trend from 20 to 60km/h; motorcycles showed on the average a less significant peak at 10km/h, a minimum at 3040km/h and then an increasing trend with a maximum emission factor at 90km/h. Carcinogenic \\{VOCs\\} show the same pattern of total VOCs. Ozone Formation Potential (OFP) was estimated by using Maximum Incremental Reactivity scale. The greatest contribution to tropospheric ozone formation comes from alkenes group which account for 5080% to the total OFP. VOC contribution effect on greenhouse effect is negligible with respect to CO2 emitted.

M. Antonietta Costagliola; Fabio Murena; M. Vittoria Prati

2014-01-01T23:59:59.000Z

370

Measurements of volatile organic compounds at a suburban ground site (T1) in Mexico City during the MILAGRO 2006 campaign: Measurement comparison, emission ratios, and source attribution  

SciTech Connect (OSTI)

Volatile organic compound (VOC) mixing ratios were measured with two different instruments at the T1 ground site in Mexico City during the Megacity Initiative: Local and Global Research Observations (MILAGRO) campaign in March of 2006. A gas chromatograph with flame ionization detector (GC-FID) quantified 18 light alkanes, alkenes and acetylene while a proton-transfer-reaction ion-trap mass spectrometer (PIT-MS) quantified 12 VOC species including oxygenated VOCs (OVOCs) and aromatics. A GC separation system was used in conjunction with the PIT-MS (GC-PIT-MS) to evaluate PIT-MS measurements and to aid in the identification of unknown VOCs. The VOC measurements are also compared to simultaneous canister samples and to two independent proton-transfer-reaction mass spectrometers (PTR-MS) deployed on a mobile and an airborne platform during MILAGRO. VOC diurnal cycles demonstrate the large influence of vehicle traffic and liquid propane gas (LPG) emissions during the night and photochemical processing during the afternoon. Emission ratios for VOCs and OVOCs relative to CO are derived from early-morning measurements. Average emission ratios for non-oxygenated species relative to CO are on average a factor of {approx}2 higher than measured for US cities. Emission ratios for OVOCs are estimated and compared to literature values the northeastern US and to tunnel studies in California. Positive matrix factorization analysis (PMF) is used to provide insight into VOC sources and processing. Three PMF factors were distinguished by the analysis including the emissions from vehicles, the use of liquid propane gas and the production of secondary VOCs + long-lived species. Emission ratios to CO calculated from the results of PMF analysis are compared to emission ratios calculated directly from measurements. The total PIT-MS signal is summed to estimate the fraction of identified versus unidentified VOC species.

Bon, D.M.; Springston, S.; M.Ulbrich, I.; de Gouw, J. A.; Warneke, C.; Kuster, W. C.; Alexander, M. L.; Baker, A.; Beyersdorf, A. J.; Blake, D.; Fall, R.; Jimenez, J. L., Herndon, S. C.; Huey, L. G.; Knighton, W. B.; Ortega, J.; Vargas, O.

2011-03-16T23:59:59.000Z

371

FORMATION OF THE SHORT-LIVED RADIONUCLIDE {sup 36}Cl IN THE PROTOPLANETARY DISK DURING LATE-STAGE IRRADIATION OF A VOLATILE-RICH RESERVOIR  

SciTech Connect (OSTI)

Short-lived radionuclides (SLRs) in the early solar system provide fundamental insight into protoplanetary disk evolution. We measured the {sup 36}Cl-{sup 36}S-isotope abundance in wadalite (<15 {mu}m), a secondary chlorine-bearing mineral found in calcium-aluminum-rich inclusions (CAIs) in the Allende CV chondrite, to decipher the origin of the SLR {sup 36}Cl ({tau}{sub 1/2} {approx} 3 x 10{sup 5} yr) in the early solar system. Its presence, initial abundance, and the noticeable decoupling from {sup 26}Al raise serious questions about the origin of SLRs. The inferred initial {sup 36}Cl abundance for wadalite, corresponding to a {sup 36}Cl/{sup 35}Cl ratio of (1.81 {+-} 0.13) x 10{sup -5}, is the highest {sup 36}Cl abundance ever reported in any early solar system material. The high level of {sup 36}Cl in wadalite and the absence of {sup 26}Al ({sup 26}Al/{sup 27}Al {<=} 3.9 x 10{sup -6}) in co-existing grossular (1) unequivocally support the production of {sup 36}Cl by late-stage solar energetic particle irradiation in the protoplanetary disk and (2) indicates that the production of {sup 36}Cl, recorded by wadalite, is unrelated to the origin of {sup 26}Al and other SLRs ({sup 10}Be, {sup 53}Mn) recorded by primary minerals of CAIs and chondrules. We infer that {sup 36}Cl was largely produced by irradiation of a volatile-rich reservoir in an optically thin protoplanetary disk adjacent to the region in which the CV chondrite parent asteroid accreted while the Sun was a weak T Tauri star. Subsequently, {sup 36}Cl accreted into the Allende CV chondrite together with condensed water ices.

Jacobsen, Benjamin; Yin Qingzhu [Department of Geology, University of California, Davis, CA 95616 (United States); Matzel, Jennifer; Hutcheon, Ian D.; Ramon, Erick C.; Weber, Peter K. [Glenn T. Seaborg Institute, Chemical Science Division, Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States); Krot, Alexander N.; Nagashima, Kazuhide [School of Ocean, Earth Science and Technology, Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, HI 96822 (United States); Ishii, Hope A. [Institute for Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States); Ciesla, Fred J., E-mail: jacobsen5@llnl.gov [Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637 (United States)

2011-04-20T23:59:59.000Z

372

The pass through of oil prices into euro area consumer liquid fuel prices in an environment of high and volatile oil prices  

Science Journals Connector (OSTI)

Crude and refined oil prices have been relatively high and volatile on a sustained basis since 1999. This paper considers the pass through of oil prices into consumer liquid (i.e. petrol, diesel and heating) fuel prices in such an environment. The pass through of oil prices into consumer liquid fuel prices has already been addressed extensively in the literature. Nonetheless much of this literature has either focused on the United States or on a time period when oil prices were relatively stable, or has used monthly data. The main contribution of this paper is a comprehensive combination of many features that have been considered before but rarely jointly. These features include: (1) the analysis of the euro area as an aggregate and a large number of countries (the initial 12 member states); (2) the consideration of different time periods; (3) the modelling of the data in raw levels rather than in log levels. This turns out to have important implications for our findings; (4) the use of high frequency (weekly) data, which, as results will suggest, are the lowest frequency one should consider; (5) the investigation of the different stages of the production chain from crude oil prices to retail distribution refining costs and margins, distribution and retailing costs and margins; (6) the examination of prices including and excluding taxes excise and value-added; (7) the modelling of prices for three fuel types passenger car petrol and diesel separately and home heating fuel oil; (8) lastly we also address the issue of possible asymmetries, allowing for the pass through to vary according to (a) whether price are increasing or decreasing and (b) whether price levels are above or below their equilibrium level. The main findings are as follows: First, as distribution and retailing costs and margins have been broadly stable on average, the modelling of the relationship between consumer prices excluding taxes and upstream prices in raw levels rather than in logarithms has important implications for the stability of estimates of pass through when oil price levels rise significantly. Second, considering spot prices for refined prices improves significantly the fit of the estimated models relative to using crude oil prices. It also results in more economically meaningful results concerning the extent of pass through. Third, oil price pass through occurs quickly, with 90% occurring within three to five weeks. Fourth, using a relatively broad specification allowing for asymmetry in the pass through from upstream to downstream prices, there is little evidence of statistically significant asymmetries. Furthermore, even where asymmetry is found to be statistically significant, it is generally not economically significant. Lastly, these results generally hold across most euro area countries with few exceptions.

Aidan Meyler

2009-01-01T23:59:59.000Z

373

Formation of short-lived radionuclides in the protoplanetary disk during late-stage irradiation of a volatile-rich reservoir  

SciTech Connect (OSTI)

The origin of short-lived (t{sub 1/2} < 5 Myr) and now extinct radionuclides ({sup 10}Be, {sup 26}Al, {sup 36}Cl, {sup 41}Ca, {sup 53}Mn, {sup 60}Fe; hereafter SLRs) is fundamental to understanding the formation of the early solar system. Two distinct classes of models have been proposed to explain the origin of SLRs: (1) injection from a nearby stellar source (e.g., supernova, asymptotic giant branch star or Wolf-Rayet star) and (2) solar energetic particle irradiation of dust and gas near the proto-Sun. Recent studies have demonstrated that {sup 36}Cl was extant in the early solar system. However, its presence, initial abundance and the noticeable decoupling from {sup 26}Al raise serious questions about the origin of SLRs. Here we report {sup 36}Cl-{sup 36}S and {sup 26}Al-{sup 26}Mg systematics for wadalite and grossular, secondary minerals in a calcium-aluminum-rich inclusion (CAI) from the CV chondrite Allende that allow us to reassess the origin of SLRs. The inferred abundance of {sup 36}Cl in wadalite, corresponding to a {sup 36}Cl/{sup 35}Cl ratio of (1.81 {+-} 0.13) x 10{sup -5}, is the highest {sup 36}Cl abundance reported in any early solar system material. The high level of {sup 36}Cl in wadalite and the absence of {sup 26}Al ({sup 26}Al/{sup 27}Al {le} 3.9 x 10{sup -6}) in co-existing grossular indicates that (1) {sup 36}Cl formed by late-stage solar energetic particle irradiation and (2) the production of {sup 36}Cl, recorded by secondary minerals, is unrelated to the origin of {sup 26}Al and other SLRs ({sup 10}Be, {sup 53}Mn) recorded by primary minerals of CAIs and chondrules. We conclude that 36Cl was produced by solar energetic particle irradiation of a volatile-rich reservoir in an optically thin protoplanetary disk adjacent to the accretion region of the CV chondrite parent asteroid.

Jacobsen, B; Matzel, J; Hutcheon, I D; Krot, A N; Yin, Q -; Nagashima, K; Ramon, E; Weber, P; Ishii, H; Ciesla, F

2010-11-30T23:59:59.000Z

374

Sovereign Debt, Volatility and Insurance  

E-Print Network [OSTI]

Borensztein, E. and P Mauro [2004], GDP-indexed Bonds,suggested by Borensztein and Mauro [2004] most recently. Theshould be feasible. Borensztein and Mauro [2004] discuss the

Kletzer, Kenneth

2005-01-01T23:59:59.000Z

375

Perfumery: Essential Oils and Volatiles  

Science Journals Connector (OSTI)

... W. Cocker (Trinity College, Dublin), who discussed chemical selectivity in the reactions of carene, showed how the products depended on the conformation of the ... , showed how the products depended on the conformation of the carene, and also on the facile isomerization of reaction intermediates. This was found to be ...

A Correspondent

1970-05-02T23:59:59.000Z

376

A Pilot Study of the Effectiveness of Indoor Plants for Removal of Volatile Organic Compounds in Indoor Air in a Seven-Story Office Building  

SciTech Connect (OSTI)

The Paharpur Business Centre and Software Technology Incubator Park (PBC) is a 7 story, 50,400 ft{sup 2} office building located near Nehru Place in New Delhi India. The occupancy of the building at full normal operations is about 500 people. The building management philosophy embodies innovation in energy efficiency while providing full service and a comfortable, safe, healthy environment to the occupants. Provision of excellent Indoor Air Quality (IAQ) is an expressed goal of the facility, and the management has gone to great lengths to achieve it. This is particularly challenging in New Delhi, where ambient urban pollution levels rank among the worst on the planet. The approach to provide good IAQ in the building includes a range of technical elements: air washing and filtration of ventilation intake air from rooftop air handler, the use of an enclosed rooftop greenhouse with a high density of potted plants as a bio-filtration system, dedicated secondary HVAC/air handling units on each floor with re-circulating high efficiency filtration and UVC treatment of the heat exchanger coils, additional potted plants for bio-filtration on each floor, and a final exhaust via the restrooms located at each floor. The conditioned building exhaust air is passed through an energy recovery wheel and chemisorbent cartridge, transferring some heat to the incoming air to increase the HVAC energy efficiency. The management uses 'green' cleaning products exclusively in the building. Flooring is a combination of stone, tile and 'zero VOC' carpeting. Wood trim and finish appears to be primarily of solid sawn materials, with very little evidence of composite wood products. Furniture is likewise in large proportion constructed from solid wood materials. The overall impression is that of a very clean and well-kept facility. Surfaces are polished to a high sheen, probably with wax products. There was an odor of urinal cake in the restrooms. Smoking is not allowed in the building. The plants used in the rooftop greenhouse and on the floors were made up of a number of species selected for the following functions: daytime metabolic carbon dioxide (CO{sub 2}) absorption, nighttime metabolic CO{sub 2} absorption, and volatile organic compound (VOC) and inorganic gas absorption/removal for air cleaning. The building contains a reported 910 indoor plants. Daytime metabolic species reported by the PBC include Areca Palm, Oxycardium, Rubber Plant, and Ficus alii totaling 188 plants (21%). The single nighttime metabolic species is the Sansevieria with a total of 28 plants (3%). The 'air cleaning' plant species reported by the PBC include the Money Plant, Aglaonema, Dracaena Warneckii, Bamboo Palm, and Raphis Palm with a total of 694 plants (76%). The plants in the greenhouse (Areca Palm, Rubber Plant, Ficus alii, Bamboo Palm, and Raphis Palm) numbering 161 (18%) of those in the building are grown hydroponically, with the room air blown by fan across the plant root zones. The plants on the building floors are grown in pots and are located on floors 1-6. We conducted a one-day monitoring session in the PBC on January 1, 2010. The date of the study was based on availability of the measurement equipment that the researchers had shipped from Lawrence Berkeley National Lab in the U.S.A. The study date was not optimal because a large proportion of the regular building occupants were not present being New Year's Day. An estimated 40 people were present in the building all day during January 1. This being said, the building systems were in normal operations, including the air handlers and other HVAC components. The study was focused primarily on measurements in the Greenhouse and 3rd and 5th floor environments as well as rooftop outdoors. Measurements included a set of volatile organic compounds (VOCs) and aldehydes, with a more limited set of observations of indoor and outdoor particulate and carbon dioxide concentrations. Continuous measurements of Temperature (T) and relative humidity (RH) were made selected indoor and outdoor locations.

Apte, Michael G.; Apte, Joshua S.

2010-04-27T23:59:59.000Z

377

2017 Levelized Costs AEO 2012 Early Release  

Gasoline and Diesel Fuel Update (EIA)

Office of Energy Markets and Financial Analysis 1 Office of Energy Markets and Financial Analysis 1 October 2012 Implications of changing correlations between WTI and other commodities, asset classes, and implied volatility Summary * Correlations among changes in the prices of commodities, and between the prices of commodities and other asset classes, generally increased from 2007 until 2012. One reason often cited for the increase in the correlation of commodity and asset price movements has been increasing economic growth in emerging market economies. * When correlations of crude oil prices with prices of multiple commodities decline, it usually implies that a supply side issue is affecting the crude oil market. When the correlation of crude oil price movements with the price movements for a specific

378

The use of radon (Rn-222) and volatile organic compounds in monitoring soil gas to localize NAPL contamination at a gas station in Rio Claro, So Paulo State, Brazil  

Science Journals Connector (OSTI)

Abstract This study focuses on the presence of radon (222Rn) and volatile organic compounds (VOCs) in soil gases at a gas station located in the city of Rio Claro, So Paulo, Brazil, where a fossil fuel leak occurred. The spatial distribution results show a correlation between 222Rn and VOCs, consistent with the fact that radon gas has a greater chemical affinity with organic phases than with water. This finding demonstrates that the presence of a residual hydrocarbon phase in an aquifer can retain radon, leading to a reduced radon content in the soil gas. The data in this study confirm the results of previous investigations, in which the method used in this study provided a preliminary fingerprint of a contaminated area. Furthermore, the data analysis time is brief, and only simple equipment is required.

E.Q. Barbosa; J.A. Galhardi; D.M. Bonotto

2014-01-01T23:59:59.000Z

379

Wheat and corn prices and energy markets: spillover effects  

Science Journals Connector (OSTI)

This paper investigates volatility spillover across crude oil market and wheat and corn markets. The corn commodity is taken here to assess the impact of change in demand for biofuel on wheat market. Results of multivariate GARCH model show evidence of corn price volatility transmission to wheat market. Our results indicate that while shocks (unexpected news) in crude oil market have significant impact on volatility in wheat and corn markets, the effect of crude oil price changes on wheat and corn prices is insignificant. The impulse response analysis also indicates shocks in oil markets have permanent effect on wheat and corn price changes. This reveals the influence of future crude oil markets on global food price volatility. Also indicated that fertilisers markets influenced by own-shocks and shocks in oil markets. Thus, shocks in crude oil markets have direct and indirect effects (via fertilisers markets) on food commodity markets.

Ibrahim A. Onour; Bruno S. Sergi

2012-01-01T23:59:59.000Z

380

Microwave plasma conversion of volatile organic compounds  

E-Print Network [OSTI]

MHz; Gerling Laboratory) and a resonant plasma tuner (ASTEX) were used to generate an argon/steam- based plasma at one atmosphere

Ko, Y; Yang, G S; Chang, DPY; Kennedy, Ian M

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Oil Prices, Volatility, and Shocks: A Survey  

Science Journals Connector (OSTI)

This paper surveys the literature on the economic effects of oil market developments. It assesses the economic theory behind oil price impacts and presents how the existing literature has analysed the link betwee...

Ulrich Oberndorfer

2014-01-01T23:59:59.000Z

382

Are oil prices going to remain volatile?  

Science Journals Connector (OSTI)

For numerous planning problems in industrial but also in private management the expectation of future energy prices remains a crucial parameter. On the basis ... a comprehensive demand/supply model for the world

Dr. F. Wirl

1985-04-01T23:59:59.000Z

383

Is Economic Volatility Detrimental to Global Sustainability?  

E-Print Network [OSTI]

, with the impacts exacerbated in some subsamples such as higher en- ergy intensity countries and lower trade share economy as a key factor influencing the low carbon development path. The finding is signifi- cant/huangyf.htm. 1 #12;1 Introduction In the 1990s the world economy grew at an averaged rate of 2.7 percent

Matthews, Adrian

384

Volatile Components from Packing Matrials, Rev. 2  

SciTech Connect (OSTI)

An outgassing study was conducted on five packing materials, comprising two experiments. These materials comprised 277-4 borated concrete, Borobond4 concrete, polyethylene bags, silica-filled silicone rubber seals, and silicone foam padding. The purpose was measure the volume of gases which diffuse from packaging materials when sealed in containers. Two heating profiles were used to study the offgassing quantities in a set of accelerated aging tests. It was determined that the concretes contain a large quantity of water. The plastic materials hold much less moisture, with the silicone materials even consuming water, possibly due to the presence of silica filler. Polyethylene tends to degrade as the temperature is elevated and the foam stiffens.

Smith, R. A.

2006-03-01T23:59:59.000Z

385

Evaluation of low volatile carriers for herbicides  

E-Print Network [OSTI]

-D) and 2, 4, 5-T in several carriers on greenhouse grown brush species was also studied. Llhen sprayed to simulate aerial applications, paraffin oil and jelled kerosene increased the deposit oI' 2, 4, 5-T both under the boom and at 0. 6 m and 1... no significant diff'erence in the deposit of the herbicides within the target area. Llhen applied with iv the Plicrofoil spray system, the deposition of 2, 4, 5-T in the paraffin oil:water emulsion was significantly higher than that of the diesel oil...

Helpert, Charles William

2012-06-07T23:59:59.000Z

386

Volatile coal prices reflect supply, demand uncertainties  

SciTech Connect (OSTI)

Coal mine owners and investors say that supply and demand are now finally in balance. But coal consumers find that both spot tonnage and new contract coal come at a much higher price.

Ryan, M.

2004-12-15T23:59:59.000Z

387

Solid fuel volatilization to produce synthesis gas  

DOE Patents [OSTI]

A method comprising contacting a carbon and hydrogen-containing solid fuel and a metal-based catalyst in the presence of oxygen to produce hydrogen gas and carbon monoxide gas, wherein the contacting occurs at a temperature sufficiently high to prevent char formation in an amount capable of stopping production of the hydrogen gas and the carbon monoxide gas is provided. In one embodiment, the metal-based catalyst comprises a rhodium-cerium catalyst. Embodiments further include a system for producing syngas. The systems and methods described herein provide shorter residence time and high selectivity for hydrogen and carbon monoxide.

Schmidt, Lanny D.; Dauenhauer, Paul J.; Degenstein, Nick J.; Dreyer, Brandon J.; Colby, Joshua L.

2014-07-29T23:59:59.000Z

388

Patterns of Pass-through of Commodity Price Shocks to Retail Prices  

E-Print Network [OSTI]

B. 1975. The Farm-Retail Price Spread in a Competitive FoodD. Reiffen. 2004. Patterns of Retail Price Variation. TheE. 2008. Pass-through in Retail and Wholesale. American

Berck, Peter; Leibtag, Ephraim S.; Villas-Boas, Sofia B.; Solis, Alex

2009-01-01T23:59:59.000Z

389

Renewable Chemical Commodity Feedstocks from Integrated Catalytic Processing of Pyrolysis Oils  

Science Journals Connector (OSTI)

...Technologies (report, NREL/TP-570-27079, National Renewable Energy Laboratory, Golden, CO, 1999); http://www1.eere.energy.gov/hydrogenandfuelcells//pdfs/27079.pdf. 39 National Research Council and National Academy of Engineering...

Tushar P. Vispute; Huiyan Zhang; Aimaro Sanna; Rui Xiao; George W. Huber

2010-11-26T23:59:59.000Z

390

Renewable Chemical Commodity Feedstocks from Integrated Catalytic Processing of Pyrolysis Oils  

Science Journals Connector (OSTI)

...hydrogen is from large steam reformers and...amounts of undesired methane are produced, which...such as by the reforming of biomass-derived...aqueous-phase reforming of biomass-derived...Survey of the Economics of Hydrogen Technologies...Hydrogen from catalytic reforming of biomass-derived...

Tushar P. Vispute; Huiyan Zhang; Aimaro Sanna; Rui Xiao; George W. Huber

2010-11-26T23:59:59.000Z

391

An Equilibrium Pricing Model for Weather Derivatives in a Multi-commodity Setting  

E-Print Network [OSTI]

Electric Reliability Technology Solutions (CERTS) on behalf of the Department of Energy, by NSF Grants EEC 0119301 and by the Power Systems Engineering Research

Lee, Yongheon; Oren, Shmuel S.

2008-01-01T23:59:59.000Z

392

Panalyst: Privacy-Aware Remote Error Analysis on Commodity Software , XiaoFeng Wang  

E-Print Network [OSTI]

of this technique demonstrates that it exposes a very small amount of user information, introduces neg- ligible of critical se- curity flaws that can be exploited to launch a large-scale cyber attack such as Worm epidemic]. To reduce information leaks, er- ror reporting systems usually only collect a small amount of information

Wang, XiaoFeng

393

Breaking Up is Hard to Do: Security and Functionality in a Commodity Hypervisor  

E-Print Network [OSTI]

, their administrative features and benefits have been equally important. For example, hardware fail- ures are a fact of life for large hosting environments; such envi- User A's VM Hypervisor Control VM aka Domain 0 User B hardware replacements as well as unexpected failures [8, 15]. Hardware diversity is also inevitable

Yang, Junfeng

394

Multi-commodity flow estimation with partial counts on selected links  

E-Print Network [OSTI]

link travel cost as a function of traffic volume on the link. As a result, the assignment problem has a nonlinear objective function and linear network constraints. The modified Frank-Wolfe algorithm, which is a type of conditional gradient method...

Kang, Dong Hun

2007-04-25T23:59:59.000Z

395

n-Cycle: a set of algorithms for task distribution on a commodity grid  

E-Print Network [OSTI]

for solving highly parallel applications. Examples are SETI@Home [19], Folding@Home the cryptographic

Bölöni, Ladislau L

396

Agriculture and Water Availability Issues: An Overview Prepared for 2012 Florida Agricultural Commodity & Policy Outlook Conference  

E-Print Network [OSTI]

) (FDEP 2010). And although future technological advances will likely decrease the costs of supply preferences, technological advances, market competition, and government programs and regulation (Turral et al supplies in Florida's coastal areas. Changes in tropical cyclone intensity, as well as the frequency

Hill, Jeffrey E.

397

The Incremental Benefits of the Nearest Neighbor Forecast of U.S. Energy Commodity Prices  

E-Print Network [OSTI]

of the prices from 33 U.S. cities.2 Crude oil data covers January 1986 to June 2010. The data are monthly. It was taken from Cushing, OK WTI3 Spot Price FOB and are expressed in dollars per barrel. Heating oil data covers the period June 1986 to June 2010..., Upstate NY, Cincinnati, Portland, Memphis, Nashville, Houston, Richmond, Seattle, Milwaukie. (Hart?s Oxy Fuel News, 2010) 3 West Texas Intermediate, also known as Texas Light Sweet. WTI is produced in Texas and South Oklahoma. Price from WTI serves...

Kudoyan, Olga

2012-02-14T23:59:59.000Z

398

Before the Committee on Agriculture Subcommittee on General Farm Commodities and Risk Management  

Broader source: Energy.gov [DOE]

Subject: Energy Markets and their Implications on Agriculture Howard Gruenspecht, Acting Administrator, Energy Information Administration

399

Forecasting Model for Crude Oil Price Using Artificial Neural Networks and Commodity Futures Prices  

E-Print Network [OSTI]

This paper presents a model based on multilayer feedforward neural network to forecast crude oil spot price direction in the short-term, up to three days ahead. A great deal of attention was paid on finding the optimal ANN model structure. In addition, several methods of data pre-processing were tested. Our approach is to create a benchmark based on lagged value of pre-processed spot price, then add pre-processed futures prices for 1, 2, 3,and four months to maturity, one by one and also altogether. The results on the benchmark suggest that a dynamic model of 13 lags is the optimal to forecast spot price direction for the short-term. Further, the forecast accuracy of the direction of the market was 78%, 66%, and 53% for one, two, and three days in future conclusively. For all the experiments, that include futures data as an input, the results show that on the short-term, futures prices do hold new information on the spot price direction. The results obtained will generate comprehensive understanding of the cr...

Kulkarni, Siddhivinayak

2009-01-01T23:59:59.000Z

400

Optimization Online - The split-demand one-commodity pickup-and ...  

E-Print Network [OSTI]

Jun 20, 2014 ... Category 1: Applications -- OR and Management Sciences (Transportation ) ... Category 3: Integer Programming (Cutting Plane Approaches ).

Juan-Jose Salazar-Gonzalez

2014-06-20T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Different scaling behaviors of commodity spot and future prices Kaushik Matia,1  

E-Print Network [OSTI]

a some- what abstract character because they i have an almost ``elastic'' response to changes in demand of Physics, Boston University, Boston, Massachusetts 02215 2 BP Upstream, Chertsey Road, Sunbury

Stanley, H. Eugene

402

Cumulative Energy Demand As Predictor for the Environmental Burden of Commodity Production  

Science Journals Connector (OSTI)

In the home, for example, smaller refrigerators with thicker insulation would use less electricity than do present units. ...

Mark A. J. Huijbregts; Stefanie Hellweg; Rolf Frischknecht; Harrie W. M. Hendriks; Konrad Hungerbhler; A. Jan Hendriks

2010-01-28T23:59:59.000Z

403

COMMODITY CODE LISTING BY TEAM AND BUYER Rev. 05/28/14  

E-Print Network [OSTI]

-Constr/Fac-Aux (Tax Exempt) Construction Team 480.965.2217 / Buyer #17 701023C Cost of Sales-Services - Construction-Construction/Facilities Construction Team 480.965.0822 / Buyer #15 731049EV Elevator Service Matt Marino matthew 701023CA Cost of Sales-Services - Carpet/Windows Thomas Sassatelli Construction Manager 701023F Cost

Gerber, Leah R.

404

Procurement Services -Restricted Commodity & Routing List Page 1 of 2 April 2014  

E-Print Network [OSTI]

Jim Casto Robert Brown Refrigerators & freezers (laboratory use only) EH&S Lab Safety Hector Acuna Personal items: Refrigerators, Microwaves, coffee makers, artwork, plants, coffee, cards) & Insurance

Liebling, Michael

405

Procurement Services -Restricted Commodity & Routing List Page 1 of 2 June 2014  

E-Print Network [OSTI]

Jim Casto Robert Brown Refrigerators & freezers (laboratory use only) EH&S Lab Safety Hector Acuna Personal items: Refrigerators, Microwaves, coffee makers, artwork, plants, coffee, cards) & Insurance

Liebling, Michael

406

Managing in a Commodity World Mike O'Shaughnessy, Director, Business Planning  

E-Print Network [OSTI]

2010 2011 2012 2013 2014 2015 2016 2017 Real GDP (% Change Year over Year) Long Te project Andacollo (90%) · Recently completed expansion that quadrupled production · >20 year mine life and Cost Competitive Production Mine Advanced ProjectRefinery · Fort Hills: 20% · Frontier: 100% · Lease

Boisvert, Jeff

407

A SURVEY OF COMMODITY MARKETS AND STRUCTURAL MODELS FOR ELECTRICITY PRICES  

E-Print Network [OSTI]

focus on the important role of other energy prices and fundamental factors in setting the power price sources, the main production process remains the conversion of fossil fuels like coal, gas and oil. Since

Carmona, Rene

408

Calculating Long-Term Trends in the Real Real Prices of Primary Commodities  

E-Print Network [OSTI]

Resources; Energy; Environment; Other Primary Products Q32 - Exhaustible Resources and Economic Development) index variously deflated by a manufacturing unit value index for exports to LDCs (MUV), the U.S. GDP) for a review of the PS literature. In the mid-1990s, the Boskin Commission report argued that measurement

409

Generalized multi-commodity network flows : case studies in space logistics and complex infrastructure systems  

E-Print Network [OSTI]

In transition to a new era of human space exploration, the question is what the next-generation space logistics paradigm should be. The past studies on space logistics have been mainly focused on a "vehicle" perspective ...

Ishimatsu, Takuto

2013-01-01T23:59:59.000Z

410

150 Years of Boom and Bust: What Drives Mineral Commodity Prices?  

E-Print Network [OSTI]

and production levels of copper, lead, tin, zinc, and crude oil from 1840 to 2010. Price fluctuations that price surges caused by rapid industrialization are a recurrent phenomenon throughout history. Mineral that supply shocks account for the broad behavior of the price of crude oil. In contrast, Kilian (2008b, 2009

Nesterov, Yurii

411

Iron ore and coal: pricing and volume up for these key export commodities  

SciTech Connect (OSTI)

Australia's huge coal and iron ore industries are booming. Up until now, the majors have benefited handsomely, but smaller players are beginning to muscle in. The article discusses development in both industries. 1 fig., 4 photos.

NONE

2006-01-15T23:59:59.000Z

412

An Equilibrium Pricing Model for Weather Derivatives in a Multi-commodity Setting  

E-Print Network [OSTI]

earnings in many industries. [Dutton, 2002] es- timates that one third of private industry activities, the wholesale electricity price in the US Midwest rose to $7000/MWh, causing the default of two East Coast electricity companies. At that time the normal price range was around $30 $60. In Texas during a three

Oren, Shmuel S.

413

Light brown apple moths arrival in California worries commodity groups  

E-Print Network [OSTI]

control of light brown apple moth, Epi- phyas postvittana (2007a. Light brown apple moth host list. www.cdfa.ca.gov/p. CDFA. 2007b. Light brown apple moth project: Advisories.

Varela, Lucia G.; Johnson, Marshall W; Strand, Larry; Wilen, Cheryl A; Pickel, Carolyn

2008-01-01T23:59:59.000Z

414

Arrowhead Center: Modeling Energy Market Volatility Report Title: Modeling Energy Market Volatility  

E-Print Network [OSTI]

in New Mexico 2 2 US Oil Rig Counts and WTI Spot Prices January 2000 to December 2009 7 3 US Natural Gas and Weighted Price Index 8 5 US Oil and Gas Extraction Employment and Rig Counts 8 6 Oil Rig Counts and WTI

Johnson, Eric E.

415

Impacts of Rising Construction and Equipment Costs on Energy Industries (released in AEO2007)  

Reports and Publications (EIA)

Costs related to the construction industry have been volatile in recent years. Some of the volatility may be related to higher energy prices. Prices for iron and steel, cement, and concrete -- commodities used heavily in the construction of new energy projects -- rose sharply from 2004 to 2006, and shortages have been reported. How such price fluctuations may affect the cost or pace of new development in the energy industries is not known with any certainty, and short-term changes in commodity prices are not accounted for in the 25-year projections in Annual Energy Outlook 2007. Most projects in the energy industries require long planning and construction lead times, which can lessen the impacts of short-term trends.

2007-01-01T23:59:59.000Z

416

Microsoft Word - Documentation - Price Forecast Uncertainty.doc  

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

October 2009 October 2009 1 October 2009 Short-Term Energy Outlook Supplement: Energy Price Volatility and Forecast Uncertainty 1 Summary It is often noted that energy prices are quite volatile, reflecting market participants' adjustments to new information from physical energy markets and/or markets in energy- related financial derivatives. Price volatility is an indication of the level of uncertainty, or risk, in the market. This paper describes how markets price risk and how the market- clearing process for risk transfer can be used to generate "price bands" around observed futures prices for crude oil, natural gas, and other commodities. These bands provide a quantitative measure of uncertainty regarding the range in which markets expect prices to

417

Slide 1  

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

Impact of Futures Trading on Impact of Futures Trading on Commodity Markets and Prices Dr. James L. Smith, Cary M. Maguire Chair in Oil & Gas Management EIA Annual Conference April 26, 2011 Some Questions * How does futures trading affect the volatility of oil prices? Some Questions * How does futures trading affect the volatility of oil prices? * How does futures trading affect the level of oil prices? Some Questions * How does futures trading affect the volatility of oil prices? * How does futures trading affect the level of oil prices? * How does the influx of financial traders alter the answers given above? Growth in Market Share of Financial Traders Source: Buyuksahin, Haigh, Harris, Overdahl, and Robe (2008) Growth in Number of Large Financial Traders Source: Buyuksahin, Haigh, Harris, Overdahl, and Robe (2008)

418

SPIE Electronic Imaging 2007, Computational Imaging V Keynote Why do Commodity Graphics Hardware Boards (GPUs) work so  

E-Print Network [OSTI]

have been emerging [1][2], and the folding@home [3] distributed supercomputing effort will also soon

Mueller, Klaus

419

Banking sector of the Russian Federation : study of the correlation between commodity prices and key safety, soundness and performance indicators  

E-Print Network [OSTI]

The purpose of this work is to provide a comprehensive overview of the state of banking system in Russia, and to understand its core dependencies and potential risks. The system, the way we find it now, has evolved though ...

Sinilov, Nikolay

2010-01-01T23:59:59.000Z

420

Cellulase for commodity products from cellulosic biomass Michael E Himmel*?, Mark F Ruth*1 and Charles E Wymans  

E-Print Network [OSTI]

dramatically over the past two decades, to the point where the fuel is now competitive for blending with gasoline to reduce greenhouse gas emissions, enhance octane, extend the gasoline supply, and promote more

California at Riverside, University of

Note: This page contains sample records for the topic "volatility iif commodities" 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

Gasoline Price Volatility Is a Concern This Summer  

Gasoline and Diesel Fuel Update (EIA)

5 of 5 5 of 5 Notes: March began with gasoline spot prices showing large increases over crude oil. Spot prices were nearly 20 cents per gallon over the already high crude oil prices, when normally the spread would be half that size. This spread was comparable to the spread seen in August 1997 when high demand, low stocks, and some refinery problems cause prices to surge. By the end of March the spread had fallen to about 16 cents per gallon, and by mid April was at about 11 cents per gallon as the inventory situation improved. Crude oil prices have also been falling, pulling gasoline spot prices down. Retail prices, which lag behind changes in the spot market, are turning down also. Regular gasoline prices peaked the week of March 20 at $1.53 and fell to $1.48 the week of April 10.

422

Gasoline Price Volatility Is a Concern This Summer  

Gasoline and Diesel Fuel Update (EIA)

6 6 Notes: Last summer's low stocks and transition to Phase 2 RFG added price pressure over and above the already high crude price pressure on gasoline. As we ended last winter, gasoline inventories were low, and the spread between spot prices and crude oil were higher than typical as a result. Inventories did not recover and the spread remained higher than average through most of the summer. In November and December, as gasoline demand eased, prices relaxed and spreads returned to average levels -- only to rebound again in January and February as refineries began to undergo maintenance and the market watched the already low stock cushion erode further. This February, spreads are higher than last year -- averaging 14 cents so far. This is about twice what we would typically see this time of

423

Low Distillate Stocks Set Stage for Price Volatility  

Gasoline and Diesel Fuel Update (EIA)

Along with the recent rise in crude oil prices, low stocks of Along with the recent rise in crude oil prices, low stocks of distillate fuels left markets in a vulnerable position. As we went into our two biggest distillate demand months, January and February, U.S. distillate stocks were very low -- particularly on the East and Gulf Coasts. The East Coast is the primary heating oil region, and it depends heavily on production from the Gulf Coast as well. Distillate stocks in the U.S. and Europe were in surplus supply as recently as October, but distillate stocks did not build as they usually do during the late fall, and declined more sharply than usual in December. December stocks closed well below the normal range. The unusual drawdown, in contrast to the more normal building pattern, resulted in distillate inventory levels about 3 million barrels lower than the very low

424

"New Factor" Contributing to Volatility:  

Gasoline and Diesel Fuel Update (EIA)

5 5 Notes: With the price spreads for gasoline that we saw in April, how come we didn't produce more gasoline? One answer is that we are nearing full capacity. Since about 1997, domestic refineries have been running at or near maximum capability during the peak demand summer months. For almost 20 years, we have had an excess of refining capacity in this country, but that is no longer the case. Actually, for gasoline we are dependent on imports. We import over 500 thousand barrels per day on average. If refiners were to build capacity to meet this need, they might have to add about 1 million barrels per day of crude processing capacity (distillation capacity) to produce that gasoline. If a problem occurs in a region when local refineries are running at maximum capability, the region must wait until the supply problem is fixed

425

Low Gasoline Stocks Indicate Increased Odds of Spring Volatility  

Gasoline and Diesel Fuel Update (EIA)

We cannot just focus on distillate. Gasoline will likely be our next We cannot just focus on distillate. Gasoline will likely be our next major concern. Gasoline stock levels have fallen well below the typical band for this time of year, primarily for the same reason distillate stocks fell to low levels -- namely relatively low production due to low margins. At the end of January, total gasoline inventories were almost 13 million barrels (6%) below the low end of the normal band. While gasoline stocks are generally not as important a supply source to the gasoline market this time of year as are distillate stocks to the distillate market, gasoline stocks still are needed. Gasoline stocks are usually used to help meet gasoline demand during February and March as refiners go through maintenance and turnarounds, but we do not have the

426

NETL: Ambient Monitoring - Contribution of Semi-volatile Organic Material  

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

Airborne Particulate Threat Assessment (APTA) Project Airborne Particulate Threat Assessment (APTA) Project In a collaborative effort between ChemImage Biothreat, LLC and the National Energy Technology Laboratory (NETL), the Airborne Particulate Threat Assessment (APTA) Project will acquire the ability to discern between chemical/biological threat agents and ambient background particulate matter (PM) encountered in the environment. The project will focus on potential background interferences, specifically from the ambient backgrounds collected at NETL-supported ambient air collection facilities. Potential substrate interferences such as pollen, insecticides and industrial PM will be addressed. Using Raman Chemical Imaging (RCI) and fluorescence chemical imaging, a background - void of pathogen spores - will be collected and compared to known pathogens. Interactions causing possible false positives will be identified and studied. This study would systematically identify potential problems and provide a baseline of ambient particulates found in the mid-eastern United States .

427

Determining Energy Use Volatility for Commercial Mortgage Valuation  

E-Print Network [OSTI]

constant year-round. Kick on the second boiler based on OAT.and always running two boilers. L L * L- Large officezone VAV Heating Type Gas boiler Mass wall Attic Packaged

Mathew, Paul

2014-01-01T23:59:59.000Z

428

2 Extracting and trapping biogenic 3 volatile organic compounds stored  

E-Print Network [OSTI]

, Subcritical water extraction; UAE, Ultrasound-assisted extraction 36 1. Introduction Plants release

Goldstein, Allen

429

Demand and Price Volatility: Rational Habits in International Gasoline Demand  

E-Print Network [OSTI]

per capita terms. When crude oil prices are used, these aredriven by the world crude oil price rather than by exchange-uctuations in the crude oil price. The overall mean real

Scott, K. Rebecca

2011-01-01T23:59:59.000Z

430

Enhanced phytoremediation of volatile environmental pollutants with transgenic trees  

Science Journals Connector (OSTI)

...1, 2). Plants act as solar-powered pump-and-treat...inputs of chemicals and energy; however, phytoremediation...can overcome many of the obstacles of traditional phytoremediation...supported by Department of Energy Grant DE-FG02-03ER63663...

Sharon L. Doty; C. Andrew James; Allison L. Moore; Azra Vajzovic; Glenda L. Singleton; Caiping Ma; Zareen Khan; Gang Xin; Jun Won Kang; Jin Young Park; Richard Meilan; Steven H. Strauss; Jasmine Wilkerson; Federico Farin; Stuart E. Strand

2007-01-01T23:59:59.000Z

431

Ensuring Collective Availability in Volatile Resource Pools Via Forecasting  

E-Print Network [OSTI]

Processing 2008 #12;150 A. Andrzejak, D. Kondo, and D.P. Anderson Folding@home [2], deploy scientific

Kondo, Derrick

432

Irregularity, volatility, risk, and financial market time series  

Science Journals Connector (OSTI)

...dividend payouts, risk, and interest rates...futures and swaps), insurance policies, and...settings when isolated political events, or discretely...destabilization a much greater risk in a significantly fractionized and divisive...quantifying systematic risk. 1 Pincus, S. M...

Steve Pincus; Rudolf E. Kalman

2004-01-01T23:59:59.000Z

433

Volatility of Gasoline and Diesel Fuel Blends for Supercritical...  

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

having efficient fuel systems and combustion chamber designs that decrease fuel consumption and mitigate emissions. p-02anitescu.pdf More Documents & Publications...

434

Membrane based apparatus for measurement of volatile particles  

SciTech Connect (OSTI)

A vapor particle separator including a temperature controlled chamber for desorbing vapors from the particulates of an exhaust gas and a separation chamber including a micro porous membrane. The micro porous membrane provides an interface between at least one particle passageway and at least one vapor passageway through the separation chamber. The particle passageway extends from an entrance to the separation chamber to a particle exit from the separation chamber. The vapor passageway extends from the micro-porous membrane to a vapor exit from the separation chamber that is separate from the particle exit from the separation chamber.

Cheng, Meng-Dawn; Allman, Steve L.

2014-07-08T23:59:59.000Z

435

Princeton and PPPL launch center to study volatile space weather...  

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

that constantly stream from the sun - and gives rise to space weather that can disrupt cell phone service, damage satellites and knock out power grids. Such stormy weather...

436

Volatility Persistence in Crude Oil Markets Amlie CHARLES  

E-Print Network [OSTI]

oil markets ­ Brent, West Texas Intermediate (WTI) and Organization of Petroleum Exporting Countries Operation Desert Storm with a negative return of -42% for WTI (Askari and Krichene, 2008; Larsson

Boyer, Edmond

437

Demand and Price Volatility: Rational Habits in International Gasoline Demand  

E-Print Network [OSTI]

shift in the short-run price elasticity of gasoline demand.A meta-analysis of the price elasticity of gasoline demand.2007. Consumer demand un- der price uncertainty: Empirical

Scott, K. Rebecca

2011-01-01T23:59:59.000Z

438

Double Diffusion in Enclosure Bounded by Massive and Volatilizing Walls  

E-Print Network [OSTI]

-10), are considered. Other governing parameters are maintained constant (Rayleigh number, Prandtl number, Lewis number and width ratio of massive wall to enclosure). The conjugate heat transfer of the thick wall and indoor airflow and the enhanced heat transfer...

Liu, D.; Tang, G.; Zhao, F.

2006-01-01T23:59:59.000Z

439

ENHANCEMENTS OF NONPOINT-SOURCE MONITORING PROGRAMS TO ASSESS VOLATILE  

E-Print Network [OSTI]

WATER OF THE UNITED STATES Wayne W. Lapham, Michael J. Moran, and John S. Zogorski ABSTRACT The U compounds (VOCs) in ground water of the United States. The data are from Federal, State, and local nonpoint for VOC occurrence and nonoccurrence in ground water of the United States. INTRODUCTION Background In 1991

440

Integration of Non-volatile Memory into Storage Hierarchy  

E-Print Network [OSTI]

critical dirty blocks in the cache until their subsequent reuse. S et 0 S et 1 S et 3 nor m al cach e S et 1 5 S et 1 3 P ar tition 0 P ar tition 1 P ar tition 2 P ar tition 3 S et 8 S et 9 h ash 1 S et 1 S et 5 S et 4P ar tition cach e S et 2 S et 6... S et 7S et 3 S et 0 h ash 2 h ash 3 h ash 4 1 6 - w ay p er set in nor m al cach e S et 1 0 S et 1 1 S et 1 4 S et 1 2 S et 2 4 - w ay p er set in p ar titioned- cach e Cach e cap acity = 6 4 cach e lines Figure 2.4: The organization...

Qiu, Sheng

2013-12-04T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

1. PRECONCENTRATION, THERMAL DESORPTION & ANALYSIS OF VOLATILE ORGANIC COMPOUNDS  

E-Print Network [OSTI]

: peltier, liq. N?.. Heated transfer line 2) Desorption & transfer by fastheatlng Cooled & heated trap jas trap. The trap is then quickly heated, under a low flow of hélium, to desorb and inject thé compounds. This highly concentrated plug of sample is transferred via a heated transfer line, to a capillary

Boyer, Edmond

442

Glossary of Volatile Organic Compounds Ethylbenzene Carbon tetrachloride  

E-Print Network [OSTI]

;Ethylbenzene Ethylbenzene is a colorless, flammable liquid found in natural products such as coal tar and petroleum. It is also found in manufactured products such as inks, insecticides, and paints. Ethylbenzene in the air. In surface water, ethylbenzene breaks down by reacting with other chemicals found naturally

443

Detecting Contagion with Correlation: Volatility and Timing Matter  

E-Print Network [OSTI]

.842 Table 7: Results of Hong test for UK (p-values) Pre-Crisis Period Crisis Period Country UK 9 Rit Rit 9 UK UK 9 Rit Rit 9 UK CP 4pm CP 4pm CP 4pm CP 4pm AUSTRIA 0.098 0.457 0.872 0.775 0.584 0.686 0.600 0.920 EU 0.084 0.168 0.780 0.864 0.001 0.000 0.762 0...

Dungey, Mardi; Yalama, Abdullah

444

Role of Volatilization in Changing TBA and MTBE Concentrations at  

E-Print Network [OSTI]

a low affinity for gasoline (low Kfw, Table 1). Therefore, minute amounts of TBA in the MTBE blended tertiary butyl ether (MTBE) added to gasoline. Frequent observations of high TBA, and especially rising TBA/MTBE concentration ratios, in groundwater at gasoline spill sites are generally attributed to microbial conversion

445

NMED COMMENTS ITEM 3 REVISE VOLATILE ORGANIC COMPOUND (VOC) TARGET...  

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

to the target list or not, according to proposed language in Permit Attachment N. If a TIC is determined to contribute more than one percent of the risk, then it will be added to...

446

Volatile organic chemical emissions from carpets. Final report  

SciTech Connect (OSTI)

The primary objective of this research, was to measure the emission rates of selected individual VOC, including low molecular-weight aldehydes, released by samples of four new carpets that are typical of the major types of carpets used in residences, schools and offices. The carpet samples were collected directly from the manufacturers` mills and packaged to preserve their chemical integrity. The measurements of the concentrations and emission rates of these compounds were made under simulated indoor conditions in a 20-M{sup 3} environmental chamber designed specifically for investigations of VOC. The measurements were conducted over a period of one week following the installation of the carpet samples in the chamber. Duplicate experiments were conducted for one carpet. In addition, the concentrations and emission rates of VOC resulting from the installation of a new carpet in a residence were measured over a period of seven weeks. The stabilities of the week-long ventilation rates and temperatures were one percent relative standard deviation. The four carpets emitted a variety of VOC, 40 of which were positively identified. Eight of these were considered to be dominant. They were (in order of chromatographic retention time) formaldehyde, vinyl acetate, 2,2,4-trimethylpentane (isooctane), 1,2-propanediol (propylene glycol), styrene, 2-ethyl-l-hexanol, 4-phenylcyclohexene (4-PCH), and 2,6 di-tert-butyl-4-methylphenol (BHT). With the exception of formaldehyde, only limited data are available on the toxicity and irritancy of these compounds at low concentrations. Therefore, it is difficult to determine at this time the potential magnitude of the health and comfort effects that may occur among the population from exposures to emissions from new carpets. The concentrations and emission rates of most compounds decreased rapidly over the first 12 h of the experiments.

Hodgson, A.T.; Wooley, J.D.; Daisey, J.M.

1992-04-01T23:59:59.000Z

447

Ethylene-induced volatile inhibitors causing soil fungistasis  

Science Journals Connector (OSTI)

... To test the hypothesis that ethylene is the main inhibitor involved in soil fungistasis5, nutrient-free water agar disks 2 ... oligospora were incubated at 22 C in atmospheres containing up to 50% (v/v) ethylene ( ...

C. BALIS

1976-01-15T23:59:59.000Z

448

TWO BILLION CARSTWO BILLION CARSDRIVING TOWARDS SUSTAINABILITY VOLATILE OIL PRICES.  

E-Print Network [OSTI]

consumers conserve energy in their cars and homes. As tomorrow's advanced transportation technologies responses to electric vehicles, alternative fueled vehicles, micro-vehicles, station car systems by uncontrolled growth and neglected carbon awareness, we realize that America's ongoing love affair with the car

Schladow, S. Geoffrey

449

Essays on the Predictability and Volatility of Asset Returns  

E-Print Network [OSTI]

of discrete set of time indexes 0 = t0 < < tN = T over the time interval [0;T]. In the subsequent development of our theory, we assume that xi = Xti with ti2[0;T] for some continuous time stochastic process (Xt), which is adapted to the ltration (Ft). Now...

Jacewitz, Stefan A.

2010-10-12T23:59:59.000Z

450

Fungal production of volatiles during growth on fiberglass.  

Science Journals Connector (OSTI)

...to 25 C. Colonized fiberglass insulations (10 to * Corresponding author...and from colonized fiberglass insulation materialsa VOCs produced on...associated with urea-formaldehyde foam insulation in Canada. Mycopathologia 99...

I M Ezeonu; D L Price; R B Simmons; S A Crow; D G Ahearn

1994-11-01T23:59:59.000Z

451

Moneta : : A Storage System for Fast Non-Volatile Memories  

E-Print Network [OSTI]

symposium on Computer architecture, ISCA 02, pages 257268,on High-Performance Computer Architecture, HPCA 96, pagesSymposium on Computer Architecture, pages 279289, New York,

Caulfield, Adrian Michael

2013-01-01T23:59:59.000Z

452

Mars and Earth: Origin and Abundance of Volatiles  

Science Journals Connector (OSTI)

...and C to be lost or hid-den become excessive...planet unprotected by a magnetic field. In fact, Handbury...inner planet with no magnetic field, since the rate...produce an en-hanced greenhouse effect. It may also...absorptivity to the planetary greenhouse (99). These ideas...

Edward Anders; Tobias Owen

1977-11-04T23:59:59.000Z

453

Characterization of Persistent Volatile Contaminant Sources in the Vadose Zone  

SciTech Connect (OSTI)

Remediation activities over time will alter the subsurface distribution of contaminants and likely create significant changes in the source-zone architecture. A field method was demonstrated for use of data collected from multiple individual soil vapor extraction (SVE) system well tests to locate and characterize the distribution of persistent VOC sources in the vadose zone. Operational data collected at the Department of Energys Hanford site were used to examine source zone alteration over time due to SVE operation and to illustrate the source-zone characterization approach. Individual well test results confirmed a heterogeneous distribution of permeability and contaminant mass discharge throughout the vadose zone. The trends in mass discharge and concentration were analyzed to determine the location and extent of the primary source zone within a lower-permeability unit at the site. This information is useful to evaluate the performance of SVE operations, and support decisions concerning system alteration or closure based on risk assessments of the impact of vadose-zone sources on groundwater contamination or vapor intrusion.

Carroll, Kenneth C.; Truex, Michael J.; Brusseau, Mark L.; Parker, Kyle R.; Mackley, Rob D.; Rohay, Virginia J.

2013-05-01T23:59:59.000Z

454

Storage Systems for Non-volatile Memory Devices  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . 16 2. Benefit From Migration . . . . . . . . . . . . . . . . . 18 3. Sensitivity Study . . . . . . . . . . . . . . . . . . . . . 20 a. Impact of Migration Threshold Parameter ? . . . 20 b. Impact of Chunk Size . . . . . . . . . . . . . . . . 22 4... . . . . . . . . . . . . . . . . . . . 65 3. Space Pre-allocation . . . . . . . . . . . . . . . . . . . 67 4. Modifications to Kernel . . . . . . . . . . . . . . . . . 68 5. Garbage Collection . . . . . . . . . . . . . . . . . . . . 70 6. File System Consistency...

Wu, Xiaojian

2011-10-21T23:59:59.000Z

455

Demand and Price Volatility: Rational Habits in International Gasoline Demand  

E-Print Network [OSTI]

capita terms. When crude oil prices are used, these are thedriven by the world crude oil price rather than by exchange-how consumers think about oil prices and price expectations,

Scott, K. Rebecca

2011-01-01T23:59:59.000Z

456

Modeling Energy Market Volatility Using REMI October 2010  

E-Print Network [OSTI]

Sources: WTI prices from EIA, Short Term Energy Outlook, Table 2 and GDP deflator from Bureau of Economic ($2005) Henry Hub Spot Price Sources: WTI prices from EIA, Short Term Energy Outlook, Table 2 and GDP Percent Change In Real Coal Price ($2005 Per short ton) Sources: Coal prices from EIA, Annual Energy

Johnson, Eric E.

457

The impact of fuel price volatility on transportation mode choice.  

E-Print Network [OSTI]

??In recent years, the price of oil has driven large fluctuations in the price of diesel fuel, which is an important cost component in freight (more)

Nsiah-Gyimah, Michael

2009-01-01T23:59:59.000Z

458

Renewable Hydrogen from Nonvolatile Fuels by Reactive Flash Volatilization  

Science Journals Connector (OSTI)

...nonvolatile hydrocarbons into syngas (a mixture of H 2 and CO...fuel cells and for onboard combustion in vehicles for enhanced performance...and reduced emissions, and syngas is used for the production of...Diesel engines require rapid combustion of nonvolatile fuels, but...

J. R. Salge; B. J. Dreyer; P. J. Dauenhauer; L. D. Schmidt

2006-11-03T23:59:59.000Z

459

Determining Energy Use Volatility for Commercial Mortgage Valuation  

E-Print Network [OSTI]

controls, VAV minimum ratio settings, and supply air temperaturecontrols, VAV minimum ratio settings, and supply air temperaturecontrol Differential Enthalpy Chilled water supply temperature

Mathew, Paul

2014-01-01T23:59:59.000Z

460

Quantifying environmental risk of groundwater contaminated with volatile chlorinated hydrocarbons.  

E-Print Network [OSTI]

??Doctor of Philosophy%%%Water quality guidelines (WQGs) present concentrations of contaminants that are designed to be protective of aquatic ecosystems. In Australia, guidance for assessment of (more)

Hunt, James

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Enhanced phytoremediation of volatile environmental pollutants with transgenic trees  

E-Print Network [OSTI]

trichloroethylene, vinyl chloride, carbon tetrachloride, benzene, and chloroform, are com- mon environmental conventional techniques. CYP2E1 P450 poplar trichloroethylene carbon tetrachloride Phytoremediation is the use greater public approval. Phytoremediation also yields other benefits including carbon sequestration, soil

462

Three-Dimensional Simulation of Volatile Organic Compound Mass...  

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

simulations using data from the U.S. Department of Energys Hanford Site, where carbon tetrachloride is present in a low permeability zone about 30 m above the...

463

Demand and Price Volatility: Rational Habits in International Gasoline Demand  

E-Print Network [OSTI]

analysis of the demand for oil in the Middle East. EnergyEstimates elasticity of demand for crude oil, not gasoline.World crude oil and natural gas: a demand and supply model.

Scott, K. Rebecca

2011-01-01T23:59:59.000Z

464

Recovering volatility from option prices by evolutionary optimization  

E-Print Network [OSTI]

in the framework of a research project on model calibration at HSBC-CCF, Division of Market and Model Risk. Earlier on Mathematical Finance (Nice), the IPM Workshop on Inverse Problems (Tehran), HSBC Quants seminar (June 2003

Cont, Rama

465

Recovering volatility from option prices by evolutionary optimization  

E-Print Network [OSTI]

was developed in the framework of a research project on model calibration at HSBC-CCF, Division of Market, the Satellite meeting on Mathematical Finance (Nice), the IPM Workshop on Inverse Problems (Tehran), HSBC Quants

Del Moral , Pierre

466

A study of volatile flavor characteristics of capsicums  

E-Print Network [OSTI]

annuum. This species includes hot, mild and sweet types, such as bell, Jalapeno, long green chile, pimienta, and serrano. Ca sicum frutescens is another species cultivated in the U. S. of which the Tabasco is the only commercially important member... (Rogers, 1966) . Botanical Characteristics peppers grown in the United States at the present time are grouped as Ca sicum annuum, the only exception being Tabasco, which is C. frutescens. The annuum has white corollas and single pedicles (Smith...

Brazier, Craig Delaney

1989-01-01T23:59:59.000Z

467

Intergenic suppression of stage II sporulation defects by a mutation in the major vegetative sigma factor gene (rpoD) of Bacillus subtilis  

Science Journals Connector (OSTI)

The Bacillus subtilis intergenic suppressor mutations crsA and rvtA, previously shown to restore sporulation competence to a variety of strains containing stage 0 sporulation defects, also suppress lesions in the stage II sporulation genes spoIIF, spoIIN and spoIIJ. They do not rescue sporulation in other stage II through stage V sporulation mutations. Cells containing spoIIN, spoIIF96 and spoIIJ::Tn917 mutations fail to transcribe spoIID, a late stage II gene. Introduction of crsA47 into spoIINts279, spoIIF96, or spoIIJ::Tn917 mutant backgrounds circumvents the need for the spoIIF, IIN, and IIJ products, restoring both expression of spoIID, and sporulation competence.

A. Lee; M. Malak; P. Louie; J. Arjomand; C. Ginther; T. Leighton

1992-01-01T23:59:59.000Z

468

Feedstock and Technology Options for Bioethanol Production in South Africa: Technoeconomic Prefeasibility Study  

Science Journals Connector (OSTI)

Due to uncertainty of commodity price fluctuations, it is recommended that static, deterministic models for economic feasibility should therefore be enhanced to incorporate uncertainty and quantitative risk assessment in process and economic parameters, by adopting stochastic simulation methods to account for price volatility. ... Labor, management, insurance, and licensing fees are also estimated according to data presented by Tiffany and Eidman. ... This highlights the importance of political engagement and the need to include political risks in economic feasibility assessments where subsidies and policy incentives are proposed by government as ways to develop and sustain biofuel markets. ...

Bamikole Amigun; Daniel Petrie; Johann Grgens

2012-08-03T23:59:59.000Z

469

Modelling power spot prices in deregulated European energy markets: a dual long memory approach  

Science Journals Connector (OSTI)

In the last decade, with deregulation and introduction of competition in power markets, prices forecasting have become a real challenge for all market participants. However, forecasting is a rather complex task since electricity prices involve many features comparably with financial ones. Electricity markets have a highly volatile nature. They are indeed a more unpredictable than that of other commodities referred to as extreme volatile. In this paper, the two most emerging European electricity markets are considered. A preliminary analysis of the time series attests to the presence of a long range dependance behaviour. Therefore, prices processes are modelled using ARFIMA-FIGARCH under Gaussian and non-Gaussian distributions. Such models are sufficiently flexible to handle the long memory phenomena often encountered in both conditional mean and conditional variance in electricity spot prices. Forecasting is subsequently performed on the basis of adequate models.

Najeh Chaâbane; Foued Saâdaoui; Saloua Benammou

2012-01-01T23:59:59.000Z

470

CRADA Final Report: Materials Development For Pulp and Paper Mills, Task 9 Proof of Commercial Concept: Commodity Carbon Fibers From Weyerhaeuser Lignin Based Fibers  

SciTech Connect (OSTI)

Tasks were assigned to Oak Ridge National Laboratory (ORNL) researchers for the development of lignin-based carbon fiber from a specific precursor that was produced by the Participant (Weyerhaeuser Corporation). These tasks included characterization of precursor polymers and fibers; and the development of conversion parameters for the fibers. ORNL researchers provided recommendations for in-house characterization of the precursor at the participant's laboratory. During the early stage of the precursor fiber production trials of various spools of fibers with varied compositions were produced. Some of those samples were sent to ORNL (by the Participant) for the development of conversion protocol. The trial tow samples were oxidized at ORNL's precursor evaluation system (PES), a bench-scale facility consisting of an oven, filament winder, tension controller, and a let off creel. The PES is a modular tool useful for the development of precursor conversion protocol. It can handle a single filament to a large single tow (50k filaments). It can also offer precise tensioning for few-filament tows. In the PES, after oxidation, fibers are typically carbonized first at low temperature, {le} 600 C, and subsequently at a higher temperature, {le} 1200 C with controlled residence time. ORNL has recently installed a new carbonization furnace with 1700 C limit and a furnace with 2500 C capacity is under installation. A protocol for the oxidation and carbonization of the trial precursor fibers was developed. Oxidized fiber with a density of 1.46 g/cc (oxidation time: 90 min) shows qualitative flame retardancy via simple flame test (fibers do not catch fire or shrink when exposed to flame). Oxidized and carbonized filaments of the Weyerhaeuser precursor fibers show moderate mechanical properties and 47-51 % carbon yield (based on oxidized fiber mass) after carbonization between 1000-1400 C. The properties of fibers from nonoptimized composition and processing parameters indicate the potential of low-cost, low-end carbon fibers based on renewable resource materials. Further work is necessary to produce high quality precursor and the corresponding carbonized filaments of superior properties.

Paulauskas, Felix L [ORNL; Naskar, Amit K [ORNL; Ozcan, Soydan [ORNL; Keiser, James R [ORNL; Gorog, John Peter [Weyerhaeuser Company

2010-09-01T23:59:59.000Z

471

THIS REPORT CONTAINS ASSESSMENTS OF COMMODITY AND TRADE ISSUES MADE BY USDA STAFF AND NOT NECESSARILY STATEMENTS OF OFFICIAL U.S. GOVERNMENT  

E-Print Network [OSTI]

. Next year, blending is even expected to stagnate, mainly due to reduced biodiesel use in Germany developments in the EU biogas and biomass market. Post: The Hague #12;This report contains the following

472

THIS REPORT CONTAINS ASSESSMENTS OF COMMODITY AND TRADE ISSUES MADE BY USDA STAFF AND NOT NECESSARILY STATEMENTS OF OFFICIAL U.S. GOVERNMENT  

E-Print Network [OSTI]

until petroleum oil prices began to sharply escalate in 2004. In an effort to deal with spiraling oil, Thailand's biofuel work plan and development had not materialized until petroleum oil prices began to sharply escalate in 2004. In an effort to deal with spirally rising oil prices, the Thai government has

473

THIS REPORT CONTAINS ASSESSMENTS OF COMMODITY AND TRADE ISSUES MADE BY USDA STAFF AND NOT NECESSARILY STATEMENTS OF OFFICIAL U.S. GOVERNMENT  

E-Print Network [OSTI]

10 are yet to be reached for the entire country; Colombia is not expected to export biofuels Biofuels Use Close to reaching E10 and B10 Levels Biofuels Annual Colombia 7/1/2012 Required Report well exceeded the local demand and generated a surplus that sustained biofuels production

474

Managing Commodity Risks in Highway Contracts: Quantifying Premiums, Accounting for Correlations Among Risk Factors, and Designing Optimal Price-Adjustment Contracts  

E-Print Network [OSTI]

fixed-price contracts. In turn, the contractors respond by adding premiums in bid prices. If the contractors overprice the risk, the price of fixed-price contract could exceed the price of the contract with adjustment clauses. Consequently, highway...

Zhou, Xue

2012-02-14T23:59:59.000Z

475

Remedy Evaluation Framework for Inorganic, Non-Volatile Contaminants in the Vadose Zone  

SciTech Connect (OSTI)

Contaminants in the vadose zone may act as a potential long-term source of groundwater contamination and need to be considered in remedy evaluations. In many cases, remediation decisions for the vadose zone will need to be made all or in part based on projected impacts to groundwater. Because there are significant natural attenuation processes inherent in vadose zone contaminant transport, remediation in the vadose zone to protect groundwater is functionally a combination of natural attenuation and use of other remediation techniques, as needed, to mitigate contaminant flux to groundwater. Attenuation processes include both hydrobiogeochemical processes that serve to retain contaminants within porous media and physical processes that mitigate the rate of water flux. In particular, the physical processes controlling fluid flow in the vadose zone are quite different and generally have a more significant attenuation impact on contaminant transport relative to those within the groundwater system. A remedy evaluation framework is presented herein that uses an adaptation of the established EPA Monitored Natural Attenuation (MNA) evaluation approach and a conceptual model based approach focused on identifying and quantifying features and processes that control contaminant flux through the vadose zone. A key concept for this framework is to recognize that MNA will comprise some portion of all remedies in the vadose zone. Thus, structuring evaluation of vadose zone waste sites to use an MNA-based approach provides information necessary to either select MNA as the remedy, if appropriate, or to quantify how much additional attenuation would need to be induced by a remedial action (e.g., technologies considered in a feasibility study) to augment the natural attenuation processes and meet groundwater protection goals.

Truex, Michael J.; Carroll, Kenneth C.

2013-05-01T23:59:59.000Z

476

Southern California Edison's (SCE) Research Program for Industrial Volatile Organic Compound (VOC) Emissions Control  

E-Print Network [OSTI]

. Applied Utility Systems Rosemead, California Tarrytown, New York Santa Ana, California ABSTRACT SCE has developed and implemented a research program for customer retention through VOC emission control. Following characterization of problematic..., California RON CASCONE Senior Consultant Chem Systems, Inc. Tarrytown, New York JIM REESE Applied Utility Santa Ana, California ABSTRACT SCE has developed and implemented a research program for customer retention through VOC emission control. Following...

Sung, R. D.; Cascone, R.; Reese, J.

477

Methodology for Formulating Diesel Surrogate Fuels with Accurate Compositional, Ignition-Quality, and Volatility Characteristics  

Science Journals Connector (OSTI)

? Marathon Petroleum Company, Main Street, Findlay, Ohio, 45840 ... We have applied this method on product streams such as finished fuels (gasoline, diesel fuels, aviation fuels, rocket propellants), crude oils (including a crude oil made from swine manure) and waste oil streams (used automotive and transformer oils). ...

Charles J. Mueller; William J. Cannella; Thomas J. Bruno; Bruce Bunting; Heather D. Dettman; James A. Franz; Marcia L. Huber; Mani Natarajan; William J. Pitz; Matthew A. Ratcliff; Ken Wright

2012-05-22T23:59:59.000Z

478

Equilibrium Isotherms of Volatile Alkanes, Alkenes, and Ketones on Activated Carbon  

Science Journals Connector (OSTI)

Given the following values we obtain The measurement errors for the volumetric apparatus are (using a mercury filling and weighing method) Therefore the expected error in nads is The error may become larger than 1.6 % if the uncertainties for T and P are found to be more than the manufacturers specifications for the instruments. ...

Ming-Hong Lai; Richard Quio Chu; Hsiu-Chu Huang; Shih-Hong Shu; Tsair-Wang Chung

2009-05-22T23:59:59.000Z

479

Emissions of volatile organic compounds inferred from airborne flux measurements over a megacity  

E-Print Network [OSTI]

mixing ratios and vertical wind speed plotted as a functionPanel: De-trended vertical wind speed (blue) and toluene (between toluene and vertical wind speed. Dashed curve

Karl, T.; Apel, E.; Hodzic, A.; Riemer, D. D; Blake, D. R; Wiedinmyer, C.

2009-01-01T23:59:59.000Z

480

Intermediate-Volatility Organic Compounds: A Large Source of Secondary Organic Aerosol  

Science Journals Connector (OSTI)

Schauer, J. J.; Kleeman, M. J.; Cass, G. R.; Simoneit, B. R. T.Measurement of emissions from air pollution sources. ... Measurement of Emissions from Air Pollution Sources. ... Schauer, J. J.; Kleeman, M. J.; Cass, G. R.; Simoneit, B. R. T.Measurement of emissions from air pollution sources. ...

Yunliang Zhao; Christopher J. Hennigan; Andrew A. May; Daniel S. Tkacik; Joost A. de Gouw; Jessica B. Gilman; William C. Kuster; Agnes Borbon; Allen L. Robinson

2014-11-06T23:59:59.000Z

Note: This page contains sample records for the topic "volatility iif commodities" 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

Customer Risk from Real-Time Retail Electricity Pricing: Bill Volatility and Hedgability  

E-Print Network [OSTI]

Implementing Real- Time Retail Electricity Pricing, CenterMarkets With Time-Invariant Retail Prices, RAND Journal of155 Customer Risk from Real-Time Retail Electricity Pricing:

Borenstein, Severin

2007-01-01T23:59:59.000Z

482

Innovative technologies and vadose zone treatment of chlorinated volatile organic compounds: Case study  

Science Journals Connector (OSTI)

...placed in operation in 1996 to provide hydraulic containment of groundwater containing...mechanical response of sediments to the hydraulic advancement of a probe equipped with...testing was performed using a portable, trailer-mounted SVE unit with a maximum capacity...

Jay V. Noonkester; Ralph L. Nichols; Kenneth L. Dixon

483

Field measurements of ammonia volatilization from surface applications of nitrogen fertilizers to a calcareous soil  

E-Print Network [OSTI]

hydrolysis study . . . . . . . . . . . , . . . . . . 71 Table 14 Effect of added soil water and added urease on loss of NH3 from Solution 32 applied at a rate of 224 kg N/ha in the field Page 72 15 Effect of method of application and added urease... on loss of NH from Solution 32 applied at a r2te of 112 kg N/ha in the field . . . . . . . . . . 74 16 Some physical and chemical characteris- tics of Houston Black clay . . . . . . . . 89 LIST OF FIGURES Figure Page A schematic of the apparatus used...

Hargrove, W. L

2012-06-07T23:59:59.000Z

484

Volatile emission by contest losers revealed by real-time chemical analysis  

Science Journals Connector (OSTI)

...losers revealed by real-time chemical analysis Marlene Goubault Tim...interactions often involve chemical exchange but simultaneous evaluation...individuals. We explore the chemical behaviour of the bethylid wasp...APCI source was mounted on a Platform II mass spectrometer (Waters...

2006-01-01T23:59:59.000Z

485

Biomass-derived volatile fatty acid platform for fuels and chemicals  

Science Journals Connector (OSTI)

The typical biorefinery platforms are sugar, thermochemical (syngas), carbon-rich chains, and biogas platforms, each offering unique advantages and disadvantages. The sugar platform uses hexose and pentose sugars...

Ho Nam Chang; Nag-Jong Kim; Jongwon Kang

2010-02-01T23:59:59.000Z

486

Seasonal Variation in Volatile Compound Profiles of Preen Gland Secretions of the Dark-eyed Junco  

E-Print Network [OSTI]

(Junco hyemalis) Helena A. Soini & Sara E. Schrock & Kevin E. Bruce & Donald Wiesler & Ellen D. Ketterson hyemalis. Juncos were held in long days to simulate breeding conditions, or short days to simulate. Bruce :D. Wiesler :M. V. Novotny (*) Institute for Pheromone Research and Department of Chemistry

487

Stock Market Volatility Prediction: A Service-Oriented Multi-Kernel Learning Approach  

E-Print Network [OSTI]

historical price fluctuations with either trading volume or news. In this paper we present a service: historical prices, trading volumes and stock related news articles. Our experiments show that 1) multi have been developed using historical stock price data, such as k-nearest neighbor and neural network

Liu, Ling

488

Halogenated Volatile Organic Compounds from the Use of Chlorine-Bleach-Containing Household Products  

Science Journals Connector (OSTI)

A number of household cleaning products (bleaches, mildew stain removers, toilet cleaners, cleaning sprays, gels, and scouring powders) contain sodium hypochlorite (NaOCl, ?5%). ... Each tube was packed at the upstream (sampling) end with 3 mm silanized glass-wool followed by a series of sections of 150 mg Tenax TA (60/80 mesh) (Supelco, Bellefonte, PA, USA), 3 mm silanized glass-wool, 100 mg Carboxen 1000 (Supelco, Bellefonte, PA), and finally, 3 mm silanized glass-wool at the downstream end. ...

Mustafa Odabasi

2008-02-01T23:59:59.000Z

489

Intake of Toxic and Carcinogenic Volatile Organic Compounds from Secondhand Smoke in Motor Vehicles  

Science Journals Connector (OSTI)

...illness, history of major medical or psychiatric conditions...the car 60 minutes after the lighting of the first cigarette. The...supported by the Flight Attendants Medical Research Institute (FAMRI...Francisco General Hospital Medical Center (NIH/NCRR UCSF-CTSI...

Gideon St.Helen; Peyton Jacob III; Margaret Peng; Delia A. Dempsey; S. Katharine Hammond; and Neal L. Benowitz

2014-12-01T23:59:59.000Z

490

Volatilization and Precipitation of Tellurium by Aerobic, Tellurite-Resistant Marine Microbes  

Science Journals Connector (OSTI)

...sulfate pool. Atmospheric DMS concentrations...point. FIG. 5. Recoveries of soluble and...species in natural waters. Anal. Chem...cycling and the atmospheric aerosol over the...sulfide and cloud condensation nucleus correlations...nearly complete recovery of the tellurite...

Patrick R. L. Ollivier; Andrew S. Bahrou; Sarah Marcus; Talisha Cox; Thomas M. Church; Thomas E. Hanson

2008-10-10T23:59:59.000Z

491

The Determination of Organic Volatiles In Air Pollution Studies: Characterization of Profiles  

Science Journals Connector (OSTI)

......the presence of water. Even packed columns...accommodate the total condensation products of more...agents prior to condensation extended the sample...candidate and although recovery prob- lems are...simply by heating. Water did not repre...R. H., "The atmospheric trace contaminant......

Wolfgang Bertsch; Ray C. Chang; Albert Zlatkis

1974-04-01T23:59:59.000Z

492

Radiocarbon Measurements of Atmospheric Volatile Organic Compounds:? Quantifying the Biogenic Contribution  

Science Journals Connector (OSTI)

The ability to obtain quality (interpretable) [14C]VOC measurements however relies on additional factors:? (1) transferring individual VOCs to the measurement system in a manner that preserves their original relative concentrations in the atmosphere (recovery), (2) quantifying limitations in the VOC isolation process (bias), and 3) quantifying chemical and isotopic contamination (blanks). ... The fM results for the VOC fractions from calibration mixtures and ambient samples are corrected for CO2 contamination using eq 2, where ?BLK in this case is defined as in which mCO2 is the carbon mass of residual atmospheric CO2 following LiOH treatment plus the carbon mass of CO2 contamination from the O2 used for VOC oxidation, and mREC is the total recovered carbon (Table 3). ... During pressurized sampling of humid air, water will be condensed in the canisters. ...

George A. Klouda; Charles W. Lewis; Reinhold A. Rasmussen; George C. Rhoderick; Robert L. Sams; Robert K. Stevens; Lloyd A. Currie; Douglas J. Donahue; A. J. Timothy Jull; Robert L. Seila

1996-03-26T23:59:59.000Z

493

The Determination of Organic Volatiles In Air Pollution Studies: Characterization of Profiles  

Science Journals Connector (OSTI)

......techniques is the presence of water. Even packed columns...recovered simply by heating. Water did not repre- sent...have little affinity for water. Samples col- lected...Gammon, R. H., "The atmospheric trace contaminant pattern...a separate portable generator supplied the power for......

Wolfgang Bertsch; Ray C. Chang; Albert Zlatkis

1974-04-01T23:59:59.000Z

494

Speculation and Return Volatility: Evidence from the WTI Crude Oil Market.  

E-Print Network [OSTI]

??Based on the data of the Commitments of Traders reports from 2000 to 2013, this paper investigates the impact of speculative futures trading on the (more)

Wang, Rui

2013-01-01T23:59:59.000Z

495

The Determination of Organic Volatiles In Air Pollution Studies: Characterization of Profiles  

Science Journals Connector (OSTI)

......and Albert Ziatkis, Department of Chemistry, University of Houston, Houston, TX...adsorbent of high affinity. Activated char- coal is a suitable candidate and although...that the burning process in internal combustion engines leaves many of the high molecular......

Wolfgang Bertsch; Ray C. Chang; Albert Zlatkis

1974-04-01T23:59:59.000Z

496

Unexpected consequences of demand response : implications for energy and capacity price level and volatility .  

E-Print Network [OSTI]

??Historically, electricity consumption has been largely insensitive to short term spot market conditions, requiring the equating of supply and demand to occur almost exclusively through (more)

Levy, Tal Z. (Tal Ze'ev)

2014-01-01T23:59:59.000Z

497

Unexpected consequences of demand response : implications for energy and capacity price level and volatility  

E-Print Network [OSTI]

Historically, electricity consumption has been largely insensitive to short term spot market conditions, requiring the equating of supply and demand to occur almost exclusively through changes in production. Large scale ...

Levy, Tal Z. (Tal Ze'ev)

2014-01-01T23:59:59.000Z

498

Volatilities of Actinide and Lanthanide N,NDimethylaminodiboranate Chemical Vapor Deposition  

E-Print Network [OSTI]

, Supercomputing Institute, and Chemical Theory Center, University of Minnesota, 207 Pleasant Street SE, Switzerland § The School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 South Mathews for technological applications such as capacitors, field effect transistors, displays, thermoelectric devices, light

Girolami, Gregory S.

499

Low-Level Detections of Halogenated Volatile Organic Compounds in Groundwater  

E-Print Network [OSTI]

Assessments L. Niel Plummer1 ; Eurybiades Busenberg2 ; Sandra M. Eberts3 ; Laura M. Bexfield4 ; Craig J. Brown5 ; Lynne S. Fahlquist6 ; Brian G. Katz7 ; and Matthew K. Landon8 Abstract: Concentrations study areas in the United States. In each case, the untreated water sample was used for drinking

500

EFFECT OF O2 ON SIC VOLATILIZATION RATE. R.A. Mendybaev1,3  

E-Print Network [OSTI]

, IL 60637 (ramendyb@midway.uchicago.edu, yosi@midway.uchicago.edu), 3 Div. of Geological and Planetary

Grossman, Lawrence