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1

Trading volumes for Brent futures surpass WTI in 2012  

U.S. Energy Information Administration (EIA)

Trading volumes for Brent futures surpass WTI in 2012 . One of the many effects of the well-documented disconnect between the prices of Brent and West Texas ...

2

Price difference between Brent and WTI crude oil narrowing - Today ...  

U.S. Energy Information Administration (EIA)

The Brent-WTI spread, the difference between the prices of Brent and West Texas Intermediate (WTI) crude oils, has narrowed considerably over the past several months.

3

Chicago Gasoline - WTI Spot Spread - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Chicago Gasoline - WTI Spot Spread. Previous slide: Next slide: Back to first slide: View graphic version

4

Spread narrows between Brent and WTI crude oil benchmark prices ...  

U.S. Energy Information Administration (EIA)

Spot prices for benchmarks West Texas Intermediate (WTI) and North Sea Brent crude oil neared parity of around $109 per barrel July 19, and the Brent-WTI spread was ...

5

Use of experience curves to estimate the future cost of power plants with CO2 capture  

E-Print Network (OSTI)

2004. Experience curves for power plant emission controlassessments of fossil fuel power plants with CO 2 capturethe future cost of power plants with CO 2 capture Edward S.

Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

2007-01-01T23:59:59.000Z

6

Cushing, OK WTI Spot Price FOB (Dollars per Barrel)  

U.S. Energy Information Administration (EIA)

View History: Daily Weekly Monthly Annual : Download Data (XLS File) Cushing, OK WTI Spot Price FOB (Dollars per Barrel) Week Of Mon Tue Wed Thu Fri ; 1985 ...

7

WTI Crude Oil Price: Base Case and 95% Confidence Interval  

U.S. Energy Information Administration (EIA)

WTI Crude Oil Price: Base Case and 95% Confidence Interval. Sources: History: EIA; Projections: Short-Term Energy Outlook, December 2000. Projections

8

Weekly Cushing, OK WTI Spot Price FOB (Dollars per Barrel)  

U.S. Energy Information Administration (EIA)

Weekly Cushing, OK WTI Spot Price FOB (Dollars per Barrel) Year-Month Week 1 Week 2 Week 3 Week 4 ... Spot Prices for Crude Oil and Petroleum Products ...

9

WTI Crude Oil Price: Base Case and 95% Confidence Interval  

Gasoline and Diesel Fuel Update (EIA)

7 7 Notes: Spot WTI prices broke $35 and even $36 per barrel in November as anticipated boosts to world supply from OPEC and other sources failed to find much realization in actual stocks data. The idea that stocks are still languishing at below-normal levels is particularly persuasive when one views current levels (for key consuming regions) relative to "normal" values which account for the long-term trend in OECD stocks. We believe that monthly average WTI prices will stay around $30 per barrel for the first part of 2001. This is a noticeable upward shift in our projected average prices from even a month ago. The shift reflects greater emphasis on the lack of stock builds and less emphasis on the assumption that supply from OPEC and non-OPEC suppliers may be exceeding demand by 1-2

10

Recent gasoline and diesel prices track Brent and LLS, not WTI ...  

U.S. Energy Information Administration (EIA)

... the spot price of West Texas Intermediate (WTI) crude oil, ... and West Coast bidding for waterborne globally traded crude oils or domestic grades, ...

11

Spread between WTI and Brent prices narrows on signs of easing ...  

U.S. Energy Information Administration (EIA)

... the spot price of West Texas Intermediate (WTI) crude oil increased $23 per barrel partly on signs that transportation constraints out of the U.S. Midwest, ...

12

WTI Crude Oil Price: Base Case and 95% Confidence Interval  

Gasoline and Diesel Fuel Update (EIA)

9 9 Notes: Spot WTI prices broke $35 and even $36 per barrel in November as anticipated boosts to world supply from OPEC and other sources did not show up in actual stocks data. The recent decline in prices seems to be more the result of an unraveling of speculative pressures than a change in underlying fundamentals. Prices had been running higher than supply/demand fundamentals would have indicated throughout the fall months as a result of rising Mideast tensions, concern over the adequacy of distillate supplies, and expectations of Iraqi supply interruptions. But Mideast tensions seemed to ease in December and the market appeared to perceive a quick return of Iraqi crude oil supplies at full capacity. Pledges by Saudi Arabia/OPEC to offset a longer term Iraqi

13

WTI Crude Oil Price: Base Case and 95% Confidence Interval  

Gasoline and Diesel Fuel Update (EIA)

6 6 Notes: Spot WTI crude oil prices broke $35 and even $36 per barrel in November as anticipated boosts to world supply from OPEC and other sources did not show up in actual stocks data. The recent decline in prices seems to be more the result of an unraveling of speculative pressures than a change in underlying fundamentals. Prices had been running higher than supply/demand fundamentals would have indicated throughout the fall months as a result of rising Mideast tensions, concern over the adequacy of distillate supplies, and expectations of Iraqi supply interruptions. But Mideast tensions seemed to ease in December and the market appeared to perceive a quick return of Iraqi crude oil supplies at full capacity. Pledges by Saudi Arabia/OPEC to offset a longer term Iraqi

14

Use of experience curves to estimate the future cost of power plants with CO2 capture  

E-Print Network (OSTI)

the combined cycle gas turbine—an experience curve analysis.reduction (SCR) systems, gas turbine combined cycle (GTCC)catalytic reduction (SCR) Gas turbine combined cycle (GTCC)

Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

2007-01-01T23:59:59.000Z

15

Oil futures price curve has steepened over the past six months ...  

U.S. Energy Information Administration (EIA)

Crude oil futures contracts allow crude to be bought and sold for delivery at specific dates in the future, meaning market participants can lock in a price today for ...

16

Oil futures price curve has steepened over the past six months ...  

U.S. Energy Information Administration (EIA)

... the future can be used as an indicator of longer term supply and demand expectations. Costs to store oil, opportunity costs associated with long-term market ...

17

Microsoft PowerPoint - uncertainty_past_wti.ppt [Compatibility Mode]  

Gasoline and Diesel Fuel Update (EIA)

3 3 - January 2014 January 2013 January 2014 Historical WTI price and 95% NYMEX Confidence Interval, January 2013 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 1 2012 2012 2013 2013 2014 2014 2015 2015 Historical WTI price and 95% NYMEX Confidence Interval, February 2013 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 2 2012 2012 2013 2013 2014 2014 2015 2015 Historical WTI price and 95% NYMEX Confidence Interval, March 2013 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 3 2012 2012 2013 2013 2014 2014 2015 2015 Historical WTI price and 95% NYMEX Confidence Interval, April 2013 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 4 2012 2012 2013 2013 2014 2014 2015 2015 Historical WTI price and 95% NYMEX Confidence Interval, May 2013 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 5 2012

18

Microsoft PowerPoint - uncertainty_wti_2011_2012.ppt [Compatibility Mode]  

Gasoline and Diesel Fuel Update (EIA)

1 1 - December 2012 January 2011 December 2012 Historical WTI price and 95% NYMEX Confidence Interval, January 2011 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 1 2010 2010 2011 2011 2012 2012 2013 2013 Historical WTI price and 95% NYMEX Confidence Interval, February 2011 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 2 2010 2010 2011 2011 2012 2012 2013 2013 Historical WTI price and 95% NYMEX Confidence Interval, March 2011 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 3 2010 2010 2011 2011 2012 2012 2013 2013 Historical WTI price and 95% NYMEX Confidence Interval, April 2011 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 4 2010 2010 2011 2011 2012 2012 2013 2013 Historical WTI price and 95% NYMEX Confidence Interval, May 2011 $250 $150 $200 $100 $150 $50 $0 Jan Jul Jan Jul Jan Jul Jan Jul 5

19

Microsoft PowerPoint - uncertainty_wti_2009_2010.ppt [Compatibility Mode]  

Gasoline and Diesel Fuel Update (EIA)

09 09 - December 2010 January 2009 December 2010 Historical WTI price and 95% NYMEX Confidence Interval, January 2009 $180 $200 $120 $140 $160 $80 $100 $120 $20 $40 $60 $0 $20 Jan Jul Jan Jul Jan Jul Jan Jul 1 2008 2008 2009 2009 2010 2010 2011 2011 Historical WTI price and 95% NYMEX Confidence Interval, February 2009 $180 $200 $120 $140 $160 $80 $100 $120 $20 $40 $60 $0 $20 Jan Jul Jan Jul Jan Jul Jan Jul 2 2008 2008 2009 2009 2010 2010 2011 2011 Historical WTI price and 95% NYMEX Confidence Interval, March 2009 $180 $200 $120 $140 $160 $80 $100 $120 $20 $40 $60 $0 $20 Jan Jul Jan Jul Jan Jul Jan Jul 3 2008 2008 2009 2009 2010 2010 2011 2011 Historical WTI price and 95% NYMEX Confidence Interval, April 2009 $180 $200 $120 $140 $160 $80 $100 $120 $20 $40 $60 $0 $20 Jan Jul Jan Jul Jan Jul Jan Jul 4 2008 2008 2009 2009 2010 2010 2011 2011 Historical WTI price and 95% NYMEX

20

Recently, S&P 500 Index and WTI crude oil futures price movements ...  

U.S. Energy Information Administration (EIA)

Greenhouse gas data, voluntary report- ing, electric power plant emissions. ... One notable exception to this recent price correlation came on August 9.

Note: This page contains sample records for the topic "wti futures curve" 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

Recently, S&P 500 Index and WTI crude oil futures price ...  

U.S. Energy Information Administration (EIA)

Over the past few weeks (July 1 through August 19), the movement of oil prices has closely mirrored that of the Standard and Poors (S&P) 500 Index.

22

WTI Crude Oil Prices Are Expected To Remain Relatively High Through At  

Gasoline and Diesel Fuel Update (EIA)

5 5 Notes: As we just saw, one of the primary factors impacting gasoline price is the crude oil price. This graph shows monthly average spot West Texas Intermediate crude oil prices. Spot WTI crude oil prices broke $36 per barrel in November briefly as anticipated boosts to world supply from OPEC and other sources did not show up in actual stocks data. Crude oil prices are expected to be about $30 per barrel for the rest of this year, but note the uncertainty bands on this projection. They give an indication of how difficult it is to know what these prices are going to do. Also, EIA does not forecast volatility. This relatively flat forecast could be correct on average, with wide swings around the base line. With the EIA forecast for crude prices staying high this year,

23

WTI-Brent crude oil price spread has reached unseen levels | U.S ...  

U.S. Energy Information Administration (EIA)

Have a question, comment, or suggestion for a future article? Send your feedback to todayinenergy@eia.gov

24

Prompt-Month Energy Futures  

Gasoline and Diesel Fuel Update (EIA)

Prompt-Month Energy Futures Prompt-Month Energy Futures Prices and trading activity shown are for prompt-month (see definition below) futures contracts for the energy commodities listed in the table below. Note that trading for prompt-month futures contracts ends on different dates at the end of the month for the various commodities; therefore, some commodity prices may reference delivery for the next month sooner than other commodity prices. Product Description Listed With Crude Oil ($/barrel) West Texas Intermediate (WTI) light sweet crude oil delivered to Cushing, Oklahoma More details | Contract specifications New York Mercantile Exchange (Nymex) Gasoline-RBOB ($/gallon) Reformulated gasoline blendstock for oxygenate blending (RBOB) gasoline delivered to New York Harbor More details | Contract specifications Nymex

25

Curves and The Photon  

E-Print Network (OSTI)

The study of the number of photons leads to a new way of characterizing curves and to a novel integral invariant over curves.

L. Stodolsky

2005-11-28T23:59:59.000Z

26

Digital Jordan curve theorems  

E-Print Network (OSTI)

Abstract. Efim Khalimsky’s digital Jordan curve theorem states that the complement of a Jordan curve in the digital plane equipped with the Khalimsky topology has exactly two connectivity components. We present a new, short proof of this theorem using induction on the Euclidean length of the curve. We also prove that the theorem holds with another topology on the digital plane but then only for a restricted class of Jordan curves. 1

Christer O. Kiselman

2000-01-01T23:59:59.000Z

27

FATIGUE DESIGN CURVES FOR  

Office of Scientific and Technical Information (OSTI)

FATIGUE DESIGN CURVES FATIGUE DESIGN CURVES FOR 6061-T6 ALUMINUM* G . T . Yahr Engineering Technology Division Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-8051 ABSTRACT A request has been made to the ASME Boiler and Pressure Vessel Committee that 6061-T6 aluminum be approved for use in the construction of Class 1 welded nuclear vessels so it can be used for the pressure vessel of the Advanced Neutron Source research reactor. Fatigue design curves with and without mean stress effects have been proposed. A knock-down factor of two is applied to the design curve for evaluation of welds. The basis of the curves is explained. The fatigue design curves are compared to fatigue data from base metal and weldments. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States

28

Galilean Classification of Curves  

E-Print Network (OSTI)

In this paper, we classify space-time curves up to Galilean group of transformations with Cartan's method of equivalence. As an aim, we elicit invariats from action of special Galilean group on space-time curves, that are, in fact, conservation laws in physics. We also state a necessary and sufficient condition for equivalent Galilean motions.

Mehdi Nadjafikhah; Ali Mahdipour Shirayeh

2007-11-13T23:59:59.000Z

29

Gaussian Curve Summations  

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

Gaussian Curve Summations Gaussian Curve Summations Name: Jay Status: educator Grade: 9-12 Location: MA Country: USA Date: April 2011 Question: I have noticed that when similar Gaussian curves are placed next to each other with 50% overlap between the curves, the summed curves give a constant value equal to the curve peak. Is there a name for this phenomenon, and is it useful in science? Replies: You have to be careful that what appears to be a real mathematical result is analytically true and not a consequence of the scale of the graphing. For example, let us look at two Gaussian curves, G1 = (1/2pi)^1/2 x exp(-1/2(x-1)^2) and G2 = (1/2pi)^1/2 x exp(-1/2(x+1)^2) and their weighted sum Gt(x)= 2 x G1 + 2 x G2. These are two Gaussian curves with mean values (+/-) 1 and standard deviation = 1. That is, they are equally "fat". If you graph Gt(x) between (+/-)0.5, G(t) appears to be a constant very close to unity. However, if you increase the values of 'x' to (+/-)2 you see that the values of Gt = (+/-)0.5. Certainly not a constant. It is a flaw in our scaling of Gt. Or put another way, we are pulling G1 and G2 apart, with no change in the standard deviation. You could make this trickier if you do not hold the standard deviation constant, but make the standard deviation proportional to the mean, so that the curves get "fatter" as you move G1 and G2 apart.

30

Investigation of learning and experience curves  

DOE Green Energy (OSTI)

The applicability of learning and experience curves for predicting future costs of solar technologies is assessed, and the major test case is the production economics of heliostats. Alternative methods for estimating cost reductions in systems manufacture are discussed, and procedures for using learning and experience curves to predict costs are outlined. Because adequate production data often do not exist, production histories of analogous products/processes are analyzed and learning and aggregated cost curves for these surrogates estimated. If the surrogate learning curves apply, they can be used to estimate solar technology costs. The steps involved in generating these cost estimates are given. Second-generation glass-steel and inflated-bubble heliostat design concepts, developed by MDAC and GE, respectively, are described; a costing scenario for 25,000 units/yr is detailed; surrogates for cost analysis are chosen; learning and aggregate cost curves are estimated; and aggregate cost curves for the GE and MDAC designs are estimated. However, an approach that combines a neoclassical production function with a learning-by-doing hypothesis is needed to yield a cost relation compatible with the historical learning curve and the traditional cost function of economic theory.

Krawiec, F.; Thornton, J.; Edesess, M.

1980-04-01T23:59:59.000Z

31

Crude oil supply curves  

E-Print Network (OSTI)

Short-run cost curves shift over time as depletion counters increasing knowledge. Under competition, a rightward (leftward) shift indicates lower (higher) cost and greater (lesser) productivity. A simple coefficient captures ...

Adelman, Morris Albert

1998-01-01T23:59:59.000Z

32

Transfinite partitions of Jordan curves  

E-Print Network (OSTI)

The w-asymmetry induced by transfinite partitions makes it impossible for Jordan curves to have an infinite length.

Antonio Leon

2006-08-21T23:59:59.000Z

33

Expected Future Value Decomposition Based Bid Price Generation ...  

E-Print Network (OSTI)

Dec 21, 2009 ... Expected Future Value Decomposition Based Bid Price Generation for ... The EFV curves are used to define bid prices on bundles of resources ...

34

Updated Hubbert curves analyze world oil supply  

SciTech Connect

The question is not whether, but when, world crude oil production will start to decline, ushering in the permanent oil shock era. While global information for predicting this event is not so straightforward as the data M. King Hubbert used in creating his famous Hubbert Curve that predicted the US (Lower 48 states, or US/48) 1970 oil production peak, there are strong indications that most of the world`s large exploration targets have now been found. Meanwhile, the earth`s population is exploding along with the oil needs of Asia`s developing nations. This article reviews Hubbert`s original analyses on oil discovery and production curves for the US/48 and projects his proven methodology onto global oil discoveries and production as of 1992. The world`s oil discovery curve peaked in 1962, and thence declined, as a Hubbert Curve predicts. However, global production was restricted after the 1973 Arab oil embargo. Otherwise, world production would have peaked in the mid-1990s. Two graphs show alternate versions of future global oil production.

Ivanhoe, L.F. [Novum Corp., Ojai, CA (United States)

1996-11-01T23:59:59.000Z

35

Bilipschitz Homogeneity and Jordan Curves.  

E-Print Network (OSTI)

??We analyze Jordan curves in the plane that are bilipschitz homogeneous with respect to Euclidean distance and/or inner diameter distance. We begin our analysis from… (more)

Freeman, David M.

2009-01-01T23:59:59.000Z

36

Motor Systems Efficiency Supply Curves  

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

expert opinion and available data from the United States, Canada, the European Union, Thailand, Vietnam, and Brazil, bottom-up energy efficiency supply curve models were...

37

Snap rounding of Bézier curves  

Science Conference Proceedings (OSTI)

We present an extension of snap roundingfrom straight-line segments (see Guibas and Marimont, 1998)to Bézier curves of arbitrary degree, and thus the first method for geometric roundingof curvilinear arrangements.Our algorithm takes a set of intersecting ... Keywords: Bézier curves, arrangement, geometric rounding, intersection computation, robustness, snap rounding, splines

Arno Eigenwillig; Lutz Kettner; Nicola Wolpert

2007-06-01T23:59:59.000Z

38

Future Healthcare  

E-Print Network (OSTI)

Patients want answers, not numbers. Evidence-based medicine must have numbers to generate answers. Therefore, analysis of numbers to provide answers is the Holy Grail of healthcare professionals and its future systems. ...

Datta, Shoumen

2010-12-15T23:59:59.000Z

39

Future tense  

Science Conference Proceedings (OSTI)

Future Tense, one of the revolving features on this page, presents stories and essays from the intersection of computational science and technological speculation, their boundaries limited only by our ability to imagine what will and could be.

Rudy Rucker

2011-07-01T23:59:59.000Z

40

On Modeling and Forecasting Time Series of Smooth Curves  

E-Print Network (OSTI)

/fertility rate curves (Hyndman and Ullah, 2007; Erbas et al., 2007). Other examples include electricity system the rates are unobservable; hence one needs to forecast future rate profiles based on historical call of telephone customer service centers, where forecasts of daily call arrival rate profiles are needed

Shen, Haipeng

Note: This page contains sample records for the topic "wti futures curve" 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

Experience Curves and Solar PV Fred Heutte, Senior Policy Associate  

E-Print Network (OSTI)

the historical advantage fossil based electricity has had will reverse, with significant consequences for future Electricity Coordinating Council's transmission planning for the 10-year Common Case based plan, and even more of evidence suggests staying with the consensus experience curve estimate ­ a Learning Rate of 20% for solar

42

Multi-Factor Model of Correlated Commodity - Forward Curves for Crude Oil and Shipping Markets  

E-Print Network (OSTI)

An arbitrage free multi-factor model is developed of the correlated forward curves of the crude oil, gasoline, heating oil and tanker shipping markets. Futures contracts trading on public exchanges are used as the primary ...

Ellefsen, Per Einar

2009-01-01T23:59:59.000Z

43

Incorporating Experience Curves in Appliance Standards Analysis  

E-Print Network (OSTI)

experience curves for wind farms. Energy Policy 33, 133-150.curves for wind power. Energy Policy 30, 1181- Jakob, M. ,

Desroches, Louis-Benoit

2012-01-01T23:59:59.000Z

44

Supply Curves of Conserved Energy  

SciTech Connect

Supply curves of conserved energy provide an accounting framework that expresses the potential for energy conservation. The economic worthiness of a conservation measure is expressed in terms of the cost of conserved energy, and a measure is considered economical when the cost of conserved energy is less than the price of the energy it replaces. A supply curve of conserved energy is independent of energy prices; however, the economical reserves of conserved energy will depend on energy prices. Double-counting of energy savings and error propagation are common problems when estimating conservation potentials, but supply curves minimize these difficulties and make their consequences predictable. The sensitivity of the cost of conserved energy is examined, as are variations in the optimal investment strategy in response to changes in inputs. Guidelines are presented for predicting the consequences of such changes. The conservation supply curve concept can be applied to peak power, water, pollution, and other markets where consumers demand a service rather than a particular good.

Meier, Alan Kevin

1982-05-01T23:59:59.000Z

45

Forecasting technology costs via the Learning Curve - Myth or Magic?  

E-Print Network (OSTI)

is generally considered to be traditional fossil fuel power stations, hence making a further assumption that such a value for cost can be forecasted). In situations where niche markets exist (for example solar PV electricity for remote areas or hand held... Solar PV provides a good example of the use and dangers of using experience curves to forecast future costs of an energy technology. It is a good example since solar PV modules are generally accessed by an international market allowing for worldwide...

Alberth, Stephan

46

TRANSFINITE PARTITIONS OF JORDAN CURVES  

E-Print Network (OSTI)

Abstract. The ?-asymmetry induced by transfinite partitions makes it impossible for Jordan curves to have an infinite length. 1. ?-asymmetry As we known from the XVIII century, ?-partitions (as we call them nowadays) of finite line segments are only possible if the successive adjacent parts of the ?-partition are of a decreasing length. This inevitable restriction induces a huge asymmetry in the very partition. In fact, whatever be the length of the ?-partitioned line segment and whatever be the ?-partition, all its parts, except a finite number of them, will necessarily lie within an arbitrarily small final segment. For the sake of illustration, consider an ?-partition of a 10 30 light years length segment-the assumed diameter of the universe. Whatever be the ?-partition of this enormous line segment all its infinitely many parts, except a finite number of them, will inevitably lie within a final segment inconceivable less than, for instance, Planck length ( ? 10 ?33 cm). There is no way of performing a more equitable partition if the partition has to be ?-ordered. Thus, ?-partitions are ?-asymmetrical. For the same reason it is impossible to consider two proper points in the real line R separated by an infinite euclidean distance, in spite of the assumed infiniteness of the real line. The above simply unaesthetic consequences of ?-partitions become a little more controversial if the partitioned object is a closed line as a Jordan curve. The objective of the following short discussion is just to examine one of those consequences. Figure 1. A cosmic ?-asymmetry. The ?-order makes it impossible a more equitable distribution of the available space. 1 2 Transfinite partitions of Jordan Curves 2. Transfinite partitions of Jordan Curves Let f(x) be a real valued function whose graph is a Jordan Curve J in the euclidean plane R2. If a and b are any two J’s points, we will write L(a, b) to denote the length of the J’s arc ãb whose endpoints are a and b. That is to say: b ? L(a, b) = 1 + (f(x)?) 2dx (1)

Antonio Leon Sanchez; I. E. S. Francisco; Salinas Salamanca

2006-01-01T23:59:59.000Z

47

Regression Error Characteristic CurVes  

E-Print Network (OSTI)

Receiver Operating Characteristic (ROC) curves provide a powerful tool for visualizing and comparing classification results. Regression Error Characteristic (REC) curves generalize ROC curves to regression. REC curves plot the error tolerance on the xaxis versus the percentage of points predicted within the tolerance on the y-axis. The resulting curve estimates the cumulative distribution function of the error. The REC curve visually presents commonly-used statistics. The area-over-the-curve (AOC) is a biased estimate of the expected error. The R 2 value can be estimated using the ratio of the AOC for a given model to the AOC for the null model. Users can quickly assess the relative merits of many regression functions by examining the relative position of their REC curves. The shape of the curve reveals additional information that can be used to guide modeling. 1.

Jinbo Bi; Kristin P. Bennett

2003-01-01T23:59:59.000Z

48

Estimating Carbon Supply Curves for Global Forests and Other Land Uses |  

Open Energy Info (EERE)

Estimating Carbon Supply Curves for Global Forests and Other Land Uses Estimating Carbon Supply Curves for Global Forests and Other Land Uses Jump to: navigation, search Tool Summary Name: Estimating Carbon Supply Curves for Global Forests and Other Land Uses Agency/Company /Organization: Resources for the Future Sector: Land Focus Area: Forestry, Agriculture Topics: GHG inventory, Resource assessment Resource Type: Guide/manual Website: www.rff.org/documents/RFF-DP-01-19.pdf Estimating Carbon Supply Curves for Global Forests and Other Land Uses Screenshot References: Estimating Carbon Supply Curves for Global Forests and Other Land Uses[1] Abstract "This study develops cumulative carbon "supply curves" for global forests utilizing an dynamic timber supply model for sequestration of forest carbon. Because the period of concern is the next century, and

49

Transportation Energy Futures  

E-Print Network (OSTI)

A Comparative Analysis of Future Transportation Fuels. ucB-prominentlyin our transportation future, powering electricTransportation Energy Futures Daniel Sperling Mark A.

DeLuchi, Mark A.

1989-01-01T23:59:59.000Z

50

Conductor assembly formed about a curved axis  

DOE Patents (OSTI)

A conductor assembly of the type which, when conducting current, generates a magnetic field or in which, in the presence of a changing magnetic field, a voltage is induced. In the assembly a first layer, tubular in shape, is formed about an axis. The axis includes a curved portion along which a conductor may be positioned to define a first conductor path. The first layer also includes a curved portion having a shape that includes a curve extending along the curved portion of the axis. A first conductor is arranged about the curved portion of the first layer in a first helical configuration including a curved segment, helical in shape and formed about the curved portion of the axis. The configuration is capable of sustaining a magnetic field having multipole components oriented in directions transverse to the axis.

Meinke, Rainer (Melbourne, FL)

2011-02-15T23:59:59.000Z

51

Load transfer coupling regression curve fitting for distribution load forecasting  

SciTech Connect

The planning of distribution facilities requires forecasts of future substation and feeder loads. Extrapolation based on a curve fit to past annual peak loads is currently the most popular manner of accomplishing this forecast. Curve fitting suffers badly from data shifts caused by switching as loads are routinely moved from one substation to another during the course of utility operations. This switching contaminates the data, reducing forecast accuracy. A new regression application reduces error due to these transfers by over an order of magnitude. A key to the usefulness of this method is that the amount of the transfer, and its direction (whether it was to or from a substation), is not a required input. The new technique, aspects of computer implementation of it, and a series of tests showing its advantage over normal multiple regression methods are given.

Willis, H.L.; Powell, R.W.

1984-05-01T23:59:59.000Z

52

Certified Approximation of Parametric Space Curves with Cubic B-spline Curves  

E-Print Network (OSTI)

Approximating complex curves with simple parametric curves is widely used in CAGD, CG, and CNC. This paper presents an algorithm to compute a certified approximation to a given parametric space curve with cubic B-spline curves. By certified, we mean that the approximation can approximate the given curve to any given precision and preserve the geometric features of the given curve such as the topology, singular points, etc. The approximated curve is divided into segments called quasi-cubic B\\'{e}zier curve segments which have properties similar to a cubic rational B\\'{e}zier curve. And the approximate curve is naturally constructed as the associated cubic rational B\\'{e}zier curve of the control tetrahedron of a quasi-cubic curve. A novel optimization method is proposed to select proper weights in the cubic rational B\\'{e}zier curve to approximate the given curve. The error of the approximation is controlled by the size of its tetrahedron, which converges to zero by subdividing the curve segments. As an applic...

Shen, Liyong; Gao, Xiao-Shan

2012-01-01T23:59:59.000Z

53

Photovoltaic I-V curve measurement techniques  

SciTech Connect

Performance evaluation of photovoltaic (PV) arrays under actual field conditions provides important feedback to the module design process. One of the principal methods for assessing an array's performance is to plot its current, I, versus voltage, V, curve. Following a brief review of techniques for measuring the I-V curve, a new, capacitive-based approach is presented. It uses a rapid sweep of the I-V curve that substantially reduces the average power transfer between array and load, and in turn, substantially reduces the size and weight of the curve tracer. Both theoretical and practical aspects of the approach are presented for a 10-kW unit. Performance is verified by comparison with I-V curves obtained by using a conventional load. The agreement is found to be excellent. Approximately an order of magnitude reduction in size, weight and power consumption over conventional units was realized with the experimental I-V curve tracer.

Cox, C.H.; Warner, T.H.

1982-08-01T23:59:59.000Z

54

Trends in electric utility load duration curves  

SciTech Connect

This report documents the development and analysis of annual and quarterly load duration curves for each of the 10 Federal regions. The report describes analyses performed to test for changes in load duration curve shapes over time. These analyses are intended to aid the electric utility analyses and modeling activities of the Energy Information Administration (EIA) by expanding the understanding of current and expected load duration curve shapes. 7 figs., 13 tabs.

1984-12-01T23:59:59.000Z

55

Bayesian methods for estimating ROC curves.  

E-Print Network (OSTI)

?? Receiver operating characteristic (ROC) analysis is a fundamental method for assessing imaging systems. However, clinical trials to estimate ROC curves can be costly as… (more)

Zur, Richard Michael

2011-01-01T23:59:59.000Z

56

Investment/Retirement Dynamics: The Rise and Fall of the Forward Curve  

Science Conference Proceedings (OSTI)

Observable market prices are the preferred basis for asset valuation in the power generation industry. But electricity forward markets are liquid only for the near term, and most of the value of a generating asset derives from the period beyond the reach of the observable forward curve. Investors build new units and retire existing ones based on their expectations of future market prices. In turn, these decisions affect the future market prices themselves. This report provides insights into the investmen...

2002-08-14T23:59:59.000Z

57

Adaptive mesh generation for curved domains  

Science Conference Proceedings (OSTI)

This paper considers the technologies needed to support the creation of adaptively constructed meshes for general curved three-dimensional domains and outlines one set of solutions for providing them. A brief review of an effective way to integrate mesh ... Keywords: adaptive meshes, anisotropic meshes, curved meshes

Mark S. Shephard; Joseph E. Flaherty; Kenneth E. Jansen; Xiangrong Li; Xiaojuan Luo; Nicolas Chevaugeon; Jean-François Remacle; Mark W. Beall; Robert M. O'Bara

2005-02-01T23:59:59.000Z

58

Mathematical modelling of brown seaweed drying curves  

Science Conference Proceedings (OSTI)

Simple solution on one-term exponential models is used in the analysis of raw data obtained from the drying experiment. The values of the parameters a, n and the constant k for the models are determined using a plot of curve drying models. Three different ... Keywords: brown seaweed, drying curves, mathematical models

Ahmad Fudholi; Mohd Hafidz Ruslan; Lim Chin Haw; Sohif Mat; Mohd Yusof Othman; Azami Zaharim; Kamaruzzaman Sopian

2012-01-01T23:59:59.000Z

59

Active curve axis Gaussian mixture models  

Science Conference Proceedings (OSTI)

Gaussian Mixture Models (GMM) have been broadly applied for the fitting of probability density function. However, due to the intrinsic linearity of GMM, usually many components are needed to appropriately fit the data distribution, when there are curve ... Keywords: AcaG, AcaGMM, Active curve axis, EM, Finite mixture models, GMM, Unsupervised learning

Baibo Zhang; Changshui Zhang; Xing Yi

2005-12-01T23:59:59.000Z

60

Bayesian curve estimation by model averaging  

Science Conference Proceedings (OSTI)

A Bayesian approach is used to estimate a nonparametric regression model. The main features of the procedure are, first, the functional form of the curve is approximated by a mixture of local polynomials by Bayesian model averaging (BMA), second, the ... Keywords: BIC criterion, Bayesian model averaging, Local polynomial regression, Nonparametric curve fitting, Robustness

Daniel Peña; Dolores Redondas

2006-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Neck curve polynomials in neck rupture model  

SciTech Connect

The Neck Rupture Model is a model that explains the scission process which has smallest radius in liquid drop at certain position. Old fashion of rupture position is determined randomly so that has been called as Random Neck Rupture Model (RNRM). The neck curve polynomials have been employed in the Neck Rupture Model for calculation the fission yield of neutron induced fission reaction of {sup 280}X{sub 90} with changing of order of polynomials as well as temperature. The neck curve polynomials approximation shows the important effects in shaping of fission yield curve.

Kurniadi, Rizal; Perkasa, Yudha S.; Waris, Abdul [Nuclear Physics and Biophysics Research Division, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung 40132 (Indonesia)

2012-06-06T23:59:59.000Z

62

Correspondence between Bain Curve Energetics and Austenite ...  

Science Conference Proceedings (OSTI)

Materials Genomics Past & Future: From CALPHAD to Flight · Microstructure Stability of Multi-Materials Systems with Adaptive Microstructures · Modeling of ...

63

Available Technologies: Curved Mandrel Design Enabling ...  

A Berkeley Lab team of engineers led by Shlomo Caspi has invented a technology to construct a curved superconducting magnet capable of bending an ion beam 90° in a ...

64

Analysis of exoplanetary transit light curves  

E-Print Network (OSTI)

This Thesis considers the scenario in which an extra-solar planet (exoplanet) passes in front of its star relative to our observing perspective. In this event, the light curve measured for the host star features a systematic ...

Carter, Joshua Adam

2009-01-01T23:59:59.000Z

65

Energy flow analysis for curved beams  

Science Conference Proceedings (OSTI)

This paper presents an energy model for the medium- and high-frequency analysis of Love–Kirchhoff curved beams. This model introduced by Nefske and Sung [Statistical Energy Analysis NCA 3

A. Le Bot; M. N. Ichchou; L. Jezequel

1997-01-01T23:59:59.000Z

66

Neutron cross sections: Book of curves  

Science Conference Proceedings (OSTI)

Neuton Cross Sections: Book of Curves represents the fourth edition of what was previously known as BNL-325, Neutron Cross Sections, Volume 2, CURVES. Data is presented only for (i.e., intergrated) reaction cross sections (and related fission parameters) as a function of incident-neutron energy for the energy range 0.01 eV to 200 MeV. For the first time, isometric state production cross sections have been included. 11 refs., 4 figs.

McLane, V.; Dunford, C.L.; Rose, P.F.

1988-01-01T23:59:59.000Z

67

Renewable Electricity Futures (Presentation)  

DOE Green Energy (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Hand, M. M.

2012-09-01T23:59:59.000Z

68

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2013-04-01T23:59:59.000Z

69

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2012-10-01T23:59:59.000Z

70

Renewable Electricity Futures (Presentation)  

Science Conference Proceedings (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2012-11-01T23:59:59.000Z

71

Future Electronics in CNST  

Science Conference Proceedings (OSTI)

... Electronic Transport in Nanoscale Organic/Inorganic Devices. ... for graphene, nanophotonic, nanoplasmonic, spintronic, and other future electronics. ...

2013-05-02T23:59:59.000Z

72

Updated U.S. Geothermal Supply Curve  

Science Conference Proceedings (OSTI)

This paper documents the approach used to update the U.S. geothermal supply curve. The analysis undertaken in this study estimates the supply of electricity generation potential from geothermal resources in the United States and the levelized cost of electricity (LCOE), capital costs, and operating and maintenance costs associated with developing these geothermal resources. Supply curves were developed for four categories of geothermal resources: identified hydrothermal (6.4 GWe), undiscovered hydrothermal (30.0 GWe), near-hydrothermal field enhanced geothermal systems (EGS) (7.0 GWe) and deep EGS (15,900 GWe). Two cases were considered: a base case and a target case. Supply curves were generated for each of the four geothermal resource categories for both cases. For both cases, hydrothermal resources dominate the lower cost range of the combined geothermal supply curve. The supply curves indicate that the reservoir performance improvements assumed in the target case could significantly lower EGS costs and greatly increase EGS deployment over the base case.

Augustine, C.; Young, K. R.; Anderson, A.

2010-02-01T23:59:59.000Z

73

Graphene: QFT in curved spacetimes close to experiments  

E-Print Network (OSTI)

A recently proposed step-by-step procedure, to merge the low-energy physics of the $\\pi$-bonds electrons of graphene, and quantum field theory on curved spacetimes, is recalled. The last step there is the proposal of an experiment to test a Hawking-Unruh effect, emerging from the model, that manifests itself as an exact (within the model) prediction for the electronic local density of states, in the ideal case of the graphene membrane shaped as a Beltrami pseudosphere. A discussion about one particular attempt to experimentally test the model on molecular graphene is presented, and it is taken as an excuse to solve some basic issues that will help future experiments. In particular, it is stated that the effect should be visible on generic surfaces of constant negative Gaussian curvature, that are infinite in number.

Alfredo Iorio

2013-04-09T23:59:59.000Z

74

BOOK: Atlas of Stress-Strain Curves, 2nd Edition  

Science Conference Proceedings (OSTI)

Feb 9, 2007 ... The second edition of this publication contains more than 1400 curves, almost three times as many as in the 1987 edition.The curves are ...

75

Does the Environmental Kuznets Curve Describe How Individual Countries Behave?  

E-Print Network (OSTI)

the Environmental Kuznets Curve Does Not Exist,” AustralianDoes the Environmental Kuznets Curve Describe How Individualover time, even if it does not appear to do so immediately.

Deacon, Robert; Norman, Catherine S

2004-01-01T23:59:59.000Z

76

What ROC curves can’t do (and cost curves can  

E-Print Network (OSTI)

Abstract. This paper shows that ROC curves, as a method of visualizing classifier performance, are inadequate for the needs of Artificial Intelligence researchers in several significant respects, and demonstrates that a different way of visualizing performance – the cost curves introduced by Drummond and Holte at KDD’2000 – overcomes these deficiencies. 1

Chris Drummond; Robert C. Holte

2004-01-01T23:59:59.000Z

77

Use of experience curves to estimate the future cost of power plants with CO2 capture  

E-Print Network (OSTI)

2007 Keywords: CO 2 capture Cost estimates Experience curveshand, reliance on cost estimates for current technology hassummarizes the nominal cost estimates for each system based

Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

2007-01-01T23:59:59.000Z

78

The use for frequency-consequence curves in future reactor licensing  

E-Print Network (OSTI)

The licensing of nuclear power plants has focused until now on Light Water Reactors and has not incorporated systematically insights and benefits from Probabilistic Risk Assessment (PRA). With the goal of making the licensing ...

Debesse, Laurène

2007-01-01T23:59:59.000Z

79

Use of experience curves to estimate the future cost of power plants with CO2 capture  

E-Print Network (OSTI)

economics of the combined cycle gas turbine—an experiencePC) and natural gas combined cycle (NGCC) plants with post-integrated gasi?cation combined cycle (IGCC) plants with

Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

2007-01-01T23:59:59.000Z

80

Use of experience curves to estimate the future cost of power plants with CO2 capture  

E-Print Network (OSTI)

boiler; Pittsburgh #8 coal; price = 1.0 $/GJ. f IGCC plant =7FA gas turbines; Pgh #8 coal; price = 1.0 $/GJ. g Oxyfuelboiler; Pittsburgh #8 coal; price = 1.0 $/GJ. Other

Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Weekly NYMEX Coal Futures  

Reports and Publications (EIA)

The New York Mercantile Exchange (NYMEX) Report provides settlement price data for Central Appalachian (CAPP), Western Powder River Basin (PRB), and Eastern CSX Transportation (CSX) coal futures.

Information Center

82

Compactness of the space of causal curves  

E-Print Network (OSTI)

We prove that the space of causal curves between compact subsets of a separable globally hyperbolic poset is itself compact in the Vietoris topology. Although this result implies the usual result in general relativity, its proof does not require the use of geometry or differentiable structure.

Keye Martin

2004-08-19T23:59:59.000Z

83

A curve design method with shape control  

Science Conference Proceedings (OSTI)

A curve design method has been proposed which, in addition to enjoying the good features of cubic splines, possesses interested shape design features too. Two families of shape parameters have been introduced in such a way that one family of parameters ... Keywords: Bernstein-Bézier, interpolation, shape control, spline, tension

M. Sarfraz; M. Balah

2003-05-01T23:59:59.000Z

84

Biomimetic soft lithography on curved nanostructured surfaces  

Science Conference Proceedings (OSTI)

In this paper a nano-molding process using a nature-created master is demonstrated. The eye of night moth Agotis exclamationis having 100nm-scale structures on a curved surface is used as biomimetic master mold from which nanostructures are replicated ... Keywords: Antireflective, Biomimetic, Nanostructures, Replication, Soft lithography

V. Auzelyte; V. Flauraud; V. J. Cadarso; T. Kiefer; J. Brugger

2012-09-01T23:59:59.000Z

85

Fractionalization of Interstitials in Curved Colloidal Crystals  

E-Print Network (OSTI)

Understanding the out-of equilibrium behaviour of point defects in crystals, yields insights into the nature and fragility of the ordered state, as well as being of great practical importance. In some rare cases defects are spontaneously healed - a one-dimensional crystal formed by a line of identical charged particles, for example, can accommodate an interstitial (extra particle) by a re-adjusting all particle positions to even out the spacing. In sharp contrast, particles organized into a perfect hexagonal crystal in the plane cannot accommodate an interstitial by a simple re-adjustment of the particle spacing - the interstitial remains instead trapped between lattice sites and diffuses by hopping, leaving the crystal permanently defected. Here we report on the behavior of interstitials in colloidal crystals on curved surfaces. Using optical tweezers operated independently of three dimensional imaging, we insert a colloidal interstitial in a lattice of similar particles on flat and curved (positively and negatively) oil-glycerol interfaces and image the ensuing dynamics. We find that, unlike in flat space, the curved crystals self-heal through a collective rearrangement that re-distributes the increased density associated with the interstitial. The self-healing process can be interpreted in terms of an out of equilibrium interaction of topological defects with each other and with the underlying curvature. Our observations suggest the existence of "particle fractionalization" on curved surface crystals.

William T. M. Irvine; Mark J. Bowick; Paul M. Chaikin

2013-10-11T23:59:59.000Z

86

The Future of LAB  

Science Conference Proceedings (OSTI)

The global linear alkylbenzene (LAB) industry has experienced depressed margins and feedstock shortages during the past few years. The following is an analysis of the industry’s current state and its most likely future. The Future of LAB inform Ma

87

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. This presentation was presented in a Wind Powering America webinar on August 15, 2012 and is now available through the Wind Powering America website.

Mai, T.

2012-08-01T23:59:59.000Z

88

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a Power Systems Engineering Research Center webinar on September 4, 2012.

Mai, T.

2012-08-01T23:59:59.000Z

89

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in an Union of Concerned Scientists webinar on June 12, 2012.

Hand, M.; Mai, T.

2012-08-01T23:59:59.000Z

90

Renewable Electricity Futures (Presentation)  

Science Conference Proceedings (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It is being presented at the Utility Variable-Generation Integration Group Fall Technical Workshop on October 24, 2012.

Hand, M.

2012-10-01T23:59:59.000Z

91

Renewable Electricity Futures (Presentation)  

Science Conference Proceedings (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a webinar given by the California Energy Commission.

Hand, M. M.

2012-08-01T23:59:59.000Z

92

Fermilab | Plan for the Future | Fermilab's Future  

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

Fermilab's Future Fermilab's Future 2013-2015 Next Fermilab's research program for 2015 and beyond New facilities at Fermilab, the nation's dedicated particle physics laboratory, would provide thousands of scientists from across the United States and around the world with world-class scientific opportunities. In collaboration with the Department of Energy and the particle physics community, Fermilab is pursuing a strategic plan that addresses fundamental questions about the physical laws that govern matter, energy, space and time. Fermilab is advancing plans for the best facilities in the world for the exploration of neutrinos and rare subatomic processes, far beyond current global capabilities. The proposed construction of a two-megawatt high-intensity proton accelerator, Project X, would enable a comprehensive

93

Future Communications Needs | Department of Energy  

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

Future Communications Needs Future Communications Needs Chart of Oncor Electric Delivery's Future Communications Needs Future Communications Needs More Documents & Publications...

94

Intermediate-Term Uranium Supply Curve Estimation  

Science Conference Proceedings (OSTI)

A study was undertaken to estimate U.S. natural uranium supply capacities and associated production costs over the period 1979-1990 and to develop the general supply outlook to 2000. Annual supply capacity schedules were estimated on an individual mill and mine family basis. Future production schedules were estimated by balancing estimated supply capacity with DOE's future demand projections; the impact of private-sector inventory levels was accounted for.

1981-02-01T23:59:59.000Z

95

Tilting train smooths out the curves  

Science Conference Proceedings (OSTI)

This article describes a Swedish train that leans into curves and speed around them safely at more than 100 miles per hour and is being tested on a tortuous railroad corridor in the Northeast United States. If the test proves successful, the train--the X2000--could become a fixture in the country's rail system. The train has flexible steering that allows the wheels to hug the rail and permits it to drive around turns faster than most other trains, according to Amtrak. Further, all of the train, expect the locomotive, tilts as it winds its way around the curves. The tilting compensates for the centrifugal force on passengers at high speeds. The X2000 is one of several train systems under consideration by railroads in the United States to improve the rail system in the country. Among the others are Germany's Inter-City Express (ICE) and France's Train a Grande Vitesse (TGV), built by GEC Alshthom (Paris).

O'Connor, L.

1993-02-01T23:59:59.000Z

96

Quantum Mechanics and Closed Timelike Curves  

E-Print Network (OSTI)

General relativity allows solutions exhibiting closed timelike curves. Time travel generates paradoxes and quantum mechanics generalizations were proposed to solve those paradoxes. The implications of self-consistent interactions on acausal region of space-time are investigated. If the correspondence principle is true, then all generalizations of quantum mechanics on acausal manifolds are not renormalizable. Therefore quantum mechanics can only be defined on global hyperbolic manifolds and all general relativity solutions exhibiting time travel are unphysical.

Florin Moldoveanu

2007-04-23T23:59:59.000Z

97

Light Curves of Swift Gamma Ray Bursts  

E-Print Network (OSTI)

Recent observations from the Swift gamma-ray burst mission indicate that a fraction of gamma ray bursts are characterized by a canonical behaviour of the X-ray afterglows. We present an effective theory which allows us to account for X-ray light curves of both (short - long) gamma ray bursts and X-ray rich flashes. We propose that gamma ray bursts originate from massive magnetic powered pulsars.

Paolo Cea

2006-06-05T23:59:59.000Z

98

LIGHT CURVES OF SWIFT GAMMA RAY BURSTS  

E-Print Network (OSTI)

Recent observations from the Swift gamma-ray burst mission indicate that a fraction of gamma ray bursts are characterized by a canonical behaviour of the X-ray afterglows. We present an effective theory which allows us to account for X-ray light curves of both (short- long) gamma ray bursts and X-ray rich flashes. We propose that gamma ray bursts originate from massive magnetic powered pulsars. Subject headings: gamma-rays: bursts 1.

Paolo Cea

2006-01-01T23:59:59.000Z

99

Renewable Electricity Futures (Presentation)  

DOE Green Energy (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented at Wind Powering America States Summit. The Summit, which follows the American Wind Energy Association's (AWEA's) annual WINDPOWER Conference and Exhibition, provides state Wind Working Groups, state energy officials, U.S. Energy Department and national laboratory representatives, and professional and institutional partners an opportunity to review successes, opportunities, and challenges for wind energy and plan future collaboration.

DeMeo, E.

2012-08-01T23:59:59.000Z

100

Future fuels from Montana  

SciTech Connect

To make America less dependent on foreign oil, Montana Governor Brain Schweitzer pushes for investment in synfuel technology. He advocates coal as the 'new fuel' for cars and believes synfuels from coal can bridge the gap between the petroleum economy of the past and the hydrogen economy of the future. He is pushing for a 'Future Fuels' project to form a public-private partnership to build 20 coal conversion, synfuel manufacturing plants. This could contribute to making the USA energy self-sufficient, more quickly than the FutureGen project, he believes.

Buchsbaum, L.

2006-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Incorporating Experience Curves in Appliance Standards Analysis  

Science Conference Proceedings (OSTI)

The technical analyses in support of U.S. energy conservation standards for residential appliances and commercial equipment have typically assumed that manufacturing costs and retail prices remain constant during the projected 30-year analysis period. There is, however, considerable evidence that this assumption does not reflect real market prices. Costs and prices generally fall in relation to cumulative production, a phenomenon known as experience and modeled by a fairly robust empirical experience curve. Using price data from the Bureau of Labor Statistics, and shipment data obtained as part of the standards analysis process, we present U.S. experience curves for room air conditioners, clothes dryers, central air conditioners, furnaces, and refrigerators and freezers. These allow us to develop more representative appliance price projections than the assumption-based approach of constant prices. These experience curves were incorporated into recent energy conservation standards for these products. The impact on the national modeling can be significant, often increasing the net present value of potential standard levels in the analysis. In some cases a previously cost-negative potential standard level demonstrates a benefit when incorporating experience. These results imply that past energy conservation standards analyses may have undervalued the economic benefits of potential standard levels.

Garbesi, Karina; Chan, Peter; Greenblatt, Jeffery; Kantner, Colleen; Lekov, Alex; Meyers, Stephen; Rosenquist, Gregory; Buskirk, Robert Van; Yang, Hung-Chia; Desroches, Louis-Benoit

2011-10-31T23:59:59.000Z

102

www.elsevier.com/locate/orms The learning curve: a new perspective  

E-Print Network (OSTI)

Despite the popularity of the ``learning' ' curve, it should be called the ``forecasting' ' curve. Given an industrial process, the traditional learning curve forecasts how costs are expected to decline (or other performance measures improve) in the future. Forecasting is certainly very useful. Nevertheless, the previous literature is notably mute on how the improvement or learning occurs. Without that information about how the process operates, the traditional learning curve cannot improve the rate of learning. This paper transforms the curve so that it not merely forecasts but rather actively creates the learning and knowledge. By extending work of the authors (Zangwill and Kantor, 1998), this paper constructs a new theoretical framework for learning and making improvements based upon learning cycles. This approach allows what is learned in one period to be intelligently applied to the next, improving the rate of learning right as production is occurring. Previous approaches could not do this. Because it should quickly increase the rate of learning, this approach might have important industrial

Willard I. Zangwill A; Paul B. Kantor B

2000-01-01T23:59:59.000Z

103

Hydrogen & Our Energy Future  

Fuel Cell Technologies Publication and Product Library (EERE)

Hydrogen & Our Energy Future (40 pages) expands on DOE's series of one-page fact sheets to provide an in-depth look at hydrogen and fuel cell technologies. It provides additional information on the sc

104

Renewable Electricity Futures (Presentation)  

Science Conference Proceedings (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented to the 2012 Western Conference of Public Service Commissioners, during their June, 2012, meeting. The Western Conference of Public Service Commissioners is a regional association within the National Association of Regulatory Utility Commissioners (NARUC).

Hand, M. M.

2012-08-01T23:59:59.000Z

105

Future land use plan  

Science Conference Proceedings (OSTI)

The US Department of Energy`s (DOE) changing mission, coupled with the need to apply appropriate cleanup standards for current and future environmental restoration, prompted the need for a process to determine preferred Future Land Uses for DOE-owned sites. DOE began the ``Future Land Use`` initiative in 1994 to ensure that its cleanup efforts reflect the surrounding communities` interests in future land use. This plan presents the results of a study of stakeholder-preferred future land uses for the Brookhaven National Laboratory (BNL), located in central Long Island, New York. The plan gives the Laboratory`s view of its future development over the next 20 years, as well as land uses preferred by the community were BNL ever to cease operations as a national laboratory (the post-BNL scenario). The plan provides an overview of the physical features of the site including its history, topography, geology/hydrogeology, biological inventory, floodplains, wetlands, climate, and atmosphere. Utility systems and current environmental operations are described including waste management, waste water treatment, hazardous waste management, refuse disposal and ground water management. To complement the physical descriptions of the site, demographics are discussed, including overviews of the surrounding areas, laboratory population, and economic and non-economic impacts.

NONE

1995-08-31T23:59:59.000Z

106

Late Light Curves of Normally-Luminous Type Ia Supernovae  

E-Print Network (OSTI)

The use of Type Ia supernovae as cosmological tools has reinforced the need to better understand these objects and their light curves. The light curves of Type Ia supernovae are powered by the nuclear decay of $^{56}Ni \\to ^{56}Co \\to ^{56}Fe$. The late time light curves can provide insight into the behavior of the decay products and their effect of the shape of the curves. We present the optical light curves of six "normal" Type Ia supernovae, obtained at late times with template image subtraction, and the fits of these light curves to supernova energy deposition models.

J. C. Lair; M. D. Leising; P. A. Milne; G. G. Williams

2006-01-05T23:59:59.000Z

107

Experience curves for power plant emission control technologies  

E-Print Network (OSTI)

1/2, 2004 Experience curves for power plant emission controlcoal-fired electric power plants. In particular, we focus on2004) ‘Experience curves for power plant emission control

Rubin, Edward S.; Yeh, Sonia; Hounshell, David A; Taylor, Margaret R

2007-01-01T23:59:59.000Z

108

Probabilistic lane estimation for autonomous driving using basis curves  

E-Print Network (OSTI)

Lane estimation for autonomous driving can be formulated as a curve estimation problem, where local sensor data provides partial and noisy observations of spatial curves forming lane boundaries. The number of lanes to ...

Huang, Albert S.

109

Discrete Variational Calculus for B-spline Approximated Curves  

E-Print Network (OSTI)

We study variational problems for curves approximated by B-spline curves. We show that, one can obtain discrete Euler-Lagrange equations, for the data describing the approximated curves. Our main application is to the curve completion problem in 2D and 3D. In this case, the aim is to find various aesthetically pleasing solutions as opposed to a solution of a physical problem. The Lagrangians of interest are invariant under the special Euclidean group action for which B-spline approximated curves are well suited. Smooth Lagrangians with special Euclidean symmetries involve curvature, torsion, and arc length. Expressions in these, in the original coordinates, are highly complex. We show that, by contrast, relatively simple discrete Lagrangians offer excellent results for the curve completion problem. The methods we develop for the discrete curve completion problem are general and can be used to solve other discrete variational problems for B-spline curves.

Zhao, Jun

2010-01-01T23:59:59.000Z

110

Trajectory generationinhigh-speed,high-precisionmicromillingusing subdivision curves  

E-Print Network (OSTI)

uni- form, rational, b-spline (NURBS) curves. It is criticalCNC tool path in terms of B-spline curves, Computer-AidedClark, Recursively generated b-spline surface on arbitrary

Vijayaraghavan, Athulan; Sodemann, Angela; Hoover, Aaron; Mayor, J.Rhett; Dornfeld, David

2009-01-01T23:59:59.000Z

111

Simulator evaluation of manually flown curved instrument approaches  

E-Print Network (OSTI)

Pilot performance in flying horizontally curved instrument approaches was analyzed by having nine test subjects fly curved approaches in a fixed-base simulator. Approaches were flown without an autopilot and without a ...

Sager, Dennis Wayne

1973-01-01T23:59:59.000Z

112

R-curve behavior in ferrite ceramics  

SciTech Connect

The unusual dependence of the fracture mode of ferrite ceramics on the stress intensity factor in the subcritical crack growth regime was used to create flaws with different concentrations of crack-interface bridges. Flaws with numerous bridges were produced by indenting under dry silicone oil, while flaws with essentially no bridges were produced by indenting under water. Plots of log failure stress as a function of log indenter load for the two types of flaws reflect the differences in bridging. Those with extensive bridging showed pronounced R-curve behavior. The curve for those initially devoid of bridges showed no plateau but did show deviations from a {minus}1/3 slope that correspond to those predicted by Bennison and Lawn for this type of flaw. The ferrite studies was 62.4 Fe{sub 2}O{sub 3} 26.6 MnO, 11.2nO, and .04 V{sub 2}O{sub 5}. 10 figs.

Beauchamp, E.K.; Monroe, S.L.

1990-01-01T23:59:59.000Z

113

High speed curved position sensitive detector  

DOE Patents (OSTI)

A high speed curved position sensitive porportional counter detector for use in x-ray diffraction, the detection of 5-20 keV photons and the like. The detector employs a planar anode assembly of a plurality of parallel metallic wires. This anode assembly is supported between two cathode planes, with at least one of these cathode planes having a serpentine resistive path in the form of a meander having legs generally perpendicular to the anode wires. This meander is produced by special microelectronic fabrication techniques whereby the meander "wire" fans outwardly at the cathode ends to produce the curved aspect of the detector, and the legs of the meander are small in cross-section and very closely spaced whereby a spatial resolution of about 50 .mu.m can be achieved. All of the other performance characteristics are about as good or better than conventional position sensitive proportional counter type detectors. Count rates of up to 40,000 counts per second with 0.5 .mu.s shaping time constants are achieved.

Hendricks, Robert W. (Montgomery County, VA); Wilson, Jack W. (Knox County, TN)

1989-01-01T23:59:59.000Z

114

Renewable Electricity Futures (Presentation)  

SciTech Connect

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented at the 2012 RE AMP Annual Meeting. RE-AMP is an active network of 144 nonprofits and foundations across eight Midwestern states working on climate change and energy policy with the goal of reducing global warming pollution economy-wide 80% by 2050.

Mai, T.

2012-08-01T23:59:59.000Z

115

IM Future | Open Energy Information  

Open Energy Info (EERE)

IM Future Jump to: navigation, search Name IM Future Place Spain Sector Services, Wind energy Product Spain-based firm that provides operation and maintenance services for wind...

116

Efficient pairing computation on Elliptic curves in Hessian form  

Science Conference Proceedings (OSTI)

Pairings in elliptic curve cryptography are functions which map a pair of elliptic curve points to a non-zero element of a finite field. In recent years, many useful cryptographic protocols based on pairings have been proposed. The fast implementations ... Keywords: Elliptic curve, Hessian form, tate paring

Haihua Gu; Dawu Gu; WenLu Xie

2010-12-01T23:59:59.000Z

117

Oil production models with normal rate curves Dudley Stark  

E-Print Network (OSTI)

Oil production models with normal rate curves Dudley Stark School of Mathematical Sciences Queen;Abstract The normal curve has been used to fit the rate of both world and U.S.A. oil production. In this paper we give the first theoretical basis for these curve fittings. It is well known that oil field

Stark, Dudley

118

The Severi problem for rational curves on del Pezzo surfaces  

E-Print Network (OSTI)

Let X be a smooth projective surface and choose a curve C on X. Let VC be the set of all irreducible divisors on X linearly equivalent to C whose normalization is a rational curve. The Severi problem for rational curves ...

Testa, Damiano

2005-01-01T23:59:59.000Z

119

Reconstruction of quasi developable surfaces from ribbon curves  

Science Conference Proceedings (OSTI)

This paper deals with the acquisition and reconstruction of physical surfaces by mean of a ribbon device equipped with micro-sensors, providing geodesic curves running on the surface. The whole process involves the reconstruction of these 3D ribbon curves ... Keywords: Capture and reconstruction of surfaces, Coons filling methods, Developable and quasi developable surfaces, Geodesic curve, Hermite interpolation

Mathieu Huard; Nathalie Sprynski; Nicolas Szafran; Luc Biard

2013-07-01T23:59:59.000Z

120

Cost curves: An improved method for visualizing classifier performance  

Science Conference Proceedings (OSTI)

This paper introduces cost curves, a graphical technique for visualizing the performance (error rate or expected cost) of 2-class classifiers over the full range of possible class distributions and misclassification costs. Cost curves are shown to be ... Keywords: Classifiers, Machine learning, Performance evaluation, ROC curves

Chris Drummond; Robert C. Holte

2006-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Classification and forecasting of load curves Nolwen Huet  

E-Print Network (OSTI)

on up to stabilisation of the clusters. Finally, the load profiles are predicted by covariance analysis of electricity customer uses. This load curve is only available for customers with automated meter readingClassification and forecasting of load curves Nolwen Huet Abstract The load curve, which gives

Cuesta, Juan Antonio

122

Quantum motor and future  

E-Print Network (OSTI)

In a popular language, the possibilities of the Casimir expulsion effect are presented, which can be the basis of quantum motors. Such motors can be in the form of a special multilayer thin film with periodic and complex nanosized structures. Quantum motors of the type of the Casimir platforms can be the base of transportation, energy and many other systems in the future.

Evgeny G. Fateev

2013-01-20T23:59:59.000Z

123

Quantum motor and future  

E-Print Network (OSTI)

In a popular language, the possibilities of the Casimir expulsion effect are presented, which can be the basis of quantum motors. Such motors can be in the form of a special multilayer thin film with periodic and complex nanosized structures. Quantum motors of the type of the Casimir platforms can be the base of transportation, energy and many other systems in the future.

Fateev, Evgeny G

2013-01-01T23:59:59.000Z

124

Cushing, OK WTI Spot Price FOB (Dollars per Barrel)  

U.S. Energy Information Administration (EIA)

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1980's: 15.05: 19.20: 15.97: 19.64: 1990's: 24.53: 21.54: 20.58: 18.43: ...

125

Cushing, OK WTI Spot Price FOB (Dollars per Barrel)  

U.S. Energy Information Administration (EIA)

View History: Daily Weekly Monthly Annual : Download Data (XLS File) Cushing, OK ... Spot Prices for Crude Oil and Petroleum Products ...

126

Cushing, OK WTI Spot Price FOB (Dollars per Barrel)  

U.S. Energy Information Administration (EIA)

Week Of Mon Tue Wed Thu Fri ; 1985 Dec-30 to Jan- 3: 25.56: 26.00: 1986 Jan- 6 to Jan-10: 26.53: 25.85: 25.87: 26.03: 25.65: 1986 Jan-13 to Jan-17: 25.08: 24.97

127

Cushing, OK WTI Spot Price FOB (Dollars per Barrel)  

U.S. Energy Information Administration (EIA)

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1980's: 15.05: 19.20: 15.97: 19.64: 1990's: 24.53: 21.54: 20.58: 18.43: 17.20: 18.43: 22 ...

128

WTI Crude Oil Price: Base Case and 95% Confidence Interval  

U.S. Energy Information Administration (EIA)

Pledges by Saudi Arabia/OPEC to offset a longer term Iraqi disruption added to a market sense of oversupply. Relatively mild weather in Europe allowed distillate ...

129

WTI Crude Oil Price: Potential for Volatility Around Base Case  

U.S. Energy Information Administration (EIA)

Pledges by Saudi Arabia/OPEC to offset a longer term Iraqi disruption added to a market sense of oversupply. Relatively mild weather in Europe allowed distillate ...

130

Cushing, OK WTI Spot Price FOB (Dollars per Barrel)  

U.S. Energy Information Administration (EIA)

Release Date: 10/9/2013: Next Release Date: 10/17/2013: Referring Pages: Spot Prices for Crude Oil and Petroleum Products

131

WTI Crude Oil Price: Base Case and 95% Confidence Interval  

U.S. Energy Information Administration (EIA)

Prices had been running higher than supply/demand fundamentals would have indicated throughout the fall months as a result of rising Mideast tensions, ...

132

Bakken crude oil price differential to WTI narrows over ...  

U.S. Energy Information Administration (EIA)

Petroleum & Other Liquids. Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids. ...

133

Price difference between Brent and WTI crude oil narrowing - Today ...  

U.S. Energy Information Administration (EIA)

Petroleum & Other Liquids. Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids. Natural Gas

134

Updated U.S. Geothermal Supply Curve  

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

CP-6A2-47458 CP-6A2-47458 February 2010 Updated U.S. Geothermal Supply Curve Chad Augustine and Katherine R. Young National Renewable Energy Laboratory Arlene Anderson U.S. Department of Energy Presented at Stanford Geothermal Workshop Stanford, California February 1, 2010 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (ASE), a contractor of the US Government under Contract No. DE-AC36-08-GO28308. Accordingly, the US Government and ASE retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

135

Semilinear Hyperbolic Equations in Curved Spacetime  

E-Print Network (OSTI)

This is a survey of the author's recent work rather than a broad survey of the literature. The survey is concerned with the global in time solutions of the Cauchy problem for matter waves propagating in the curved spacetimes, which can be, in particular, modeled by cosmological models. We examine the global in time solutions of some class of semililear hyperbolic equations, such as the Klein-Gordon equation, which includes the Higgs boson equation in the Minkowski spacetime, de Sitter spacetime, and Einstein & de Sitter spacetime. The crucial tool for the obtaining those results is a new approach suggested by the author based on the integral transform with the kernel containing the hypergeometric function.\\\\ {\\bf Mathematics Subject Classification (2010):} Primary 35L71, 35L53; Secondary 81T20, 35C15.\\\\ {\\bf Keywords:} \\small {de Sitter spacetime; Klein-Gordon equation; Global solutions; Huygens' principle; Higuchi bound}

Karen Yagdjian

2013-05-19T23:59:59.000Z

136

Environmental management by the learning curve  

Science Conference Proceedings (OSTI)

This is a futuristic appreciation of waste management challenges and their solution by means of good management models. A literature review, administrative initiatives, research results, and experiences from practice are combined in this study to render an evolutionary picture of the change in paradigm relative to municipal solid waste possible to occur between 2000 and 2025. The principal stages of progress in the 25 years studied were: the correct characterization of municipal solid waste as a function of geographical location and recycling potential, the divided collection model and its corresponding learning curve, correct opportunity cost accounting tools, and the generally admitted and accepted changeover of municipal solid waste treatment from a technical to a management problem. It is reported that as a result of this progress, the municipal landfill is a species in extinction. Regional landfills with long life spans are the rule in 2025.

Fehr, M

2003-07-01T23:59:59.000Z

137

The Rossiter-McLaughlin effect and analytic radial velocity curves for transiting extrasolar planetary systems  

E-Print Network (OSTI)

A transiting extrasolar planet sequentially blocks off the light coming from the different parts of the disk of the host star in a time dependent manner. Due to the spin of the star, this produces an asymmetric distortion in the line profiles of the stellar spectrum, leading to an apparent anomaly of the radial velocity curves, known as the Rossiter - McLaughlin effect. Here, we derive approximate but accurate analytic formulae for the anomaly of radial velocity curves taking account of the stellar limb darkening. The formulae are particularly useful in extracting information of the projected angle between the planetary orbit axis and the stellar spin axis, \\lambda, and the projected stellar spin velocity, V sin I_s. We create mock samples for the radial curves for the transiting extrasolar system HD209458, and demonstrate that constraints on the spin parameters (V sin I_s, \\lambda) may be significantly improved by combining our analytic template formulae and the precision velocity curves from high-resolution spectroscopic observations with 8-10 m class telescopes. Thus future observational exploration of transiting systems using the Rossiter - McLaughlin effect is one of the most important probes to better understanding of the origin of extrasolar planetary systems, especially the origin of their angular momentum.

Yasuhiro Ohta; Atsushi Taruya; Yasushi Suto

2004-10-21T23:59:59.000Z

138

Selected GHG Emission Supply Curves | Open Energy Information  

Open Energy Info (EERE)

Selected GHG Emission Supply Curves Selected GHG Emission Supply Curves Jump to: navigation, search Tool Summary Name: Selected GHG Emission Supply Curves Agency/Company /Organization: Northwest Power and Conservation Council Sector: Energy Focus Area: Conventional Energy, Energy Efficiency, Renewable Energy, Industry, Transportation, Forestry, Agriculture Topics: GHG inventory, Pathways analysis Resource Type: Dataset, Publications Website: www.nwcouncil.org/energy/grac/20090130_Supply%20Curves_NWPCC_FINAL.pdf Selected GHG Emission Supply Curves Screenshot References: Selected GHG Emission Supply Curves[1] Background "The ECL supply curve model includes data on potential emission reductions for approximately 60 separate technology options. It allows the examination of multiple scenarios involving the inclusion or exclusion of technology

139

Driving the Future  

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

the Future the Future A r g o n n e ' s v e h i c l e s ys t e m s r e s e A r c h 3 2 v e h i c l e s y s t e m s r e s e a r c h At Argonne National Laboratory's Center for Transportation Research, our goal is to accelerate the development and deployment of vehicle technologies that help reduce our nation's petroleum consumption and greenhouse gas emissions. Our Vehicle Systems research focuses on maximizing vehicle performance and efficiency through in-depth studies of the interactions and integration of components and controls in a large, complex vehicle system. Working with the U.S. Department of Energy (DOE) and the automotive industry, we investigate the potential of vehicle technologies ranging from alternative fuels to advanced powertrains, such as plug-in hybrids and electric vehicles. Funding

140

D-Branes in Curved Space  

Science Conference Proceedings (OSTI)

This thesis is a study of D-branes in string compactifications. In this context, D-branes are relevant as an important component of the nonperturbative spectrum, as an incisive probe of these backgrounds, and as a natural stringy tool for localizing gauge interactions. In the first part of the thesis, we discuss half-BPS D-branes in compactifications of type II string theory on Calabi-Yau threefolds. The results we describe for these objects are pertinent both in their role as stringy brane-worlds, and in their role as solitonic objects. In particular, we determine couplings of these branes to the moduli determining the closed-string geometry, both perturbatively and non-perturbatively in the worldsheet expansion. We provide a local model for transitions in moduli space where the BPS spectrum jumps, and discuss the extension of mirror symmetry between Calabi-Yau manifolds to the case when D-branes are present. The next section is an interlude which provides some applications of D-branes to other curved backgrounds of string theory. In particular, we discuss a surprising phenomenon in which fundamental strings moving through background Ramond-Ramond fields dissolve into large spherical D3-branes. This mechanism is used to explain a previously-mysterious fact discovered via the AdS-CFT correspondence. Next, we make a connection between type IIA string vacua of the type discussed in the first section and M-theory compactifications on manifolds of G{sub 2} holonomy. Finally we discuss constructions of string vacua which do not have large radius limits. In the final part of the thesis, we develop techniques for studying the worldsheets of open strings ending on the curved D-branes studied in the first section. More precisely, we formulate a large class of massive two-dimensional gauge theories coupled to boundary matter, which flow in the infrared to the relevant boundary conformal field theories. Along with many other applications, these techniques are used to describe world-volume theories of point-like D-probes of various Calabi-Yau threefolds.

McGreevy, John Austen; /Stanford U., Phys. Dept.

2005-07-06T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Solar winds along curved magnetic field lines  

E-Print Network (OSTI)

Both remote-sensing measurements using the interplanetary scintillation (IPS) technique and in situ measurements by the Ulysses spacecraft show a bimodal structure for the solar wind at solar minimum conditions. At present what makes the fast wind fast and the slow wind slow still remains to be answered. While a robust empirical correlation exists between the coronal expansion rate $f_c$ of the flow tubes and the speeds $v$ measured in situ, further data analysis suggests that $v$ depends on more than just $f_c$. We examine whether the non-radial shape of field lines, which naturally accompanies any non-radial expansion, could be an additional geometrical factor. We solved the transport equations incorporating the heating due to turbulent Alfv\\'en waves for an electron-proton solar wind along curved field lines given by an analytical magnetic field model, representative of a solar minimum corona. The field line shape is found to influence substantially the solar wind parameters, reducing the asymptotic speed ...

Li, Bo; Chen, Yao

2011-01-01T23:59:59.000Z

142

NONPARAMETRIC BAYESIAN ESTIMATION OF PERIODIC LIGHT CURVES  

SciTech Connect

Many astronomical phenomena exhibit patterns that have periodic behavior. An important step when analyzing data from such processes is the problem of identifying the period: estimating the period of a periodic function based on noisy observations made at irregularly spaced time points. This problem is still a difficult challenge despite extensive study in different disciplines. This paper makes several contributions toward solving this problem. First, we present a nonparametric Bayesian model for period finding, based on Gaussian Processes (GPs), that does not make assumptions on the shape of the periodic function. As our experiments demonstrate, the new model leads to significantly better results in period estimation especially when the light curve does not exhibit sinusoidal shape. Second, we develop a new algorithm for parameter optimization for GP which is useful when the likelihood function is very sensitive to the parameters with numerous local minima, as in the case of period estimation. The algorithm combines gradient optimization with grid search and incorporates several mechanisms to overcome the high computational complexity of GP. Third, we develop a novel approach for using domain knowledge, in the form of a probabilistic generative model, and incorporate it into the period estimation algorithm. Experimental results validate our approach showing significant improvement over existing methods.

Wang Yuyang; Khardon, Roni [Department of Computer Science, Tufts University, Medford, MA (United States); Protopapas, Pavlos [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)

2012-09-01T23:59:59.000Z

143

Decline curve derivative analysis for homogeneous and composite reservoirs  

DOE Green Energy (OSTI)

In this study, the rate decline and rate decline derivatives of a constant pressure well are presented for infinite, constant pressure outer boundary, and closed outer boundary homogeneous reservoirs. A rate derivative type curve is provided for these cases as well. The effects of the dimensionless reservoir exterior radius are discussed. Rate decline and rate decline derivatives of a constant pressure well in an infinite composite reservoir are also presented. For composite reservoirs, the effects of mobility ratios and discontinuity distance on both rate decline and rate decline derivatives are presented. Type curves for dimensionless wellbore flow rate derivatives for infinite composite reservoirs are provided. A new correlating group for the derivative type curve is provided, and is different than the correlating group for the rate type curve presented in the past. Finally, an analysis method that comprises type curve and derivative type curve matching to determine the dimensionless variables is proposed and demonstrated with a simulated example.

Demski, J.A.

1987-06-01T23:59:59.000Z

144

ECN GHG Marginal Abatement Cost curves (NAMAC) | Open Energy Information  

Open Energy Info (EERE)

ECN GHG Marginal Abatement Cost curves (NAMAC) ECN GHG Marginal Abatement Cost curves (NAMAC) Jump to: navigation, search Tool Summary Name: ECN GHG Marginal Abatement Cost curves for the Non-Annex I region (NAMAC) Agency/Company /Organization: Energy Research Centre of the Netherlands Sector: Energy, Land Topics: Resource assessment, Pathways analysis, Background analysis Website: www.ecn.nl/docs/library/report/2006/e06060.pdf References: GHG Marginal Abatement Cost curves for the Non-Annex I region[1] GHG Marginal Abatement Cost curves for the Non-Annex I region (NAMAC) (1999-present) ECN has developed a Marginal Abatement Cost curve containing detailed information on mitigation technologies and abatement costs in developing countries. * The MAC was first developed for the Dutch Ministry of Foreign

145

Spatial Analysis and Supply Curve Development  

E-Print Network (OSTI)

In February 2008, the Western Governors ’ Association adopted a policy reaffirming the governors ’ strong commitment to enhance and diversify the region's transportation fuels portfolio. The Strategic Assessment of Bioenergy Development in the West represents a major step in fulfilling that commitment and expands upon earlier work through WGA's Clean and Diversified Energy Initiative and the Transportation Fuels Initiative. The Bioenergy Assessment Team was formed to examine the potential for future development and to create a comprehensive framework to assess environmental, technical and socioeconomic impacts associated with national, state and regional bioenergy and biomass management policies. This assessment will assist the governors individually and collectively as they develop bioenergy policies. The extensive evaluations conducted by the Assessment Team are contained in the following areas:

unknown authors

2008-01-01T23:59:59.000Z

146

Securing Our Energy Future  

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

Our Energy Our Energy Securing Our Energy Future Future World Energy Demand Growing Dramatically 12 1400 1200 10 1000 2000 2050 2100 Population of Population of Industrialized Countries Industrialized Countries Wo W rl r d o ld Po P pu p la l ti t on o o u a i n Wo W rl r d E d ne n rg r y o l E e gy Co C ns n um u pt p io i n o s m t on Population (Billions) Energy Consumption (Qbtu / yr) 8 800 6 600 4 400 2 200 0 0 1900 1950 Year U.S. Electricity Generation by Fue U.S. Electricity Generation by Fuel Electric Generation by Fuel 1980 - 2030 (billion kilowatt-hours) 0 1000 2000 3000 4000 5000 6000 1980 1990 2000 2010 2020 2030 Renewables/Other Nuclear Natural Gas Petroleum Coal Source: EIA Annual Energy Outlook 2008 Why Do We Keep Coal in the Mix? Why Do We Keep Coal in the Mix? World Energy Reserves World Energy Reserves Source: Energy Information Administration/ International Reserves Data

147

NYMEX Futures Prices  

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

NYMEX Futures Prices NYMEX Futures Prices (Crude Oil in Dollars per Barrel, All Others in Dollars per Gallon) Period: Daily Weekly Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Product/ Contract 12/10/13 12/11/13 12/12/13 12/13/13 12/16/13 12/17/13 View History Crude Oil (Light-Sweet, Cushing, Oklahoma) Contract 1 98.51 97.44 97.5 96.6 97.48 97.22 1983-2013 Contract 2 98.66 97.72 97.82 96.93 97.77 97.47 1985-2013 Contract 3 98.58 97.72 97.77 96.91 97.7 97.36 1983-2013 Contract 4 98.19 97.39 97.42 96.55 97.28 96.92 1985-2013 Reformulated Regular Gasoline (New York Harbor) Contract 1 1985-2006 Contract 2 1994-2006 Contract 3 1984-2006 Contract 4 1994-2006 RBOB Regular Gasoline (New York Harbor)

148

Motor System Energy Efficiency Supply Curves: A Methodology for...  

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

Motor System Energy Efficiency Supply Curves: A Methodology for Assessing the Energy Efficiency Potential of Industrial Motor Systems Speaker(s): Ali Hasanbeigi Date: February 8,...

149

A local fitting algorithm for converting planar curves to  

E-Print Network (OSTI)

In this paper we present a local fitting algorithm for converting smooth planar curves to B-splines. For a smooth planar curve a set of points together with their tangent vectors are first sampled from the curve such that the connected polygon approximates the curve with high accuracy and inflexions are detected by the sampled data efficiently. Then, a G 1 continuous Bézier spline curve is obtained by fitting the sampled data with shape preservation as well as within a prescribed accuracy. Finally, the Bézier spline is merged into a C 2 continuous B-spline curve by subdivision and control points adjustment. The merging is guaranteed to be within another error bound and with no more inflexions than the Bézier spline. In addition to shape preserving and error control, this conversion algorithm also benefits that the knots are selected automatically and adaptively according to local shape and error bound. A few experimental results are included to demonstrate the validity and efficiency of the algorithm. Keywords: curve conversion; B-spline curve; cubic Bézier curve; knot selection; shape preserving 1.

unknown authors

2007-01-01T23:59:59.000Z

150

Synthesis of Space-Filling Curves Through Measure- Preserving ...  

E-Print Network (OSTI)

by composing it with a space-filling curve (SFC), searches for a small group of candidates and ..... machine learning and maximum likelihood estimation.

151

Hydrogen & Our Energy Future  

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

Hydrogen Program Hydrogen Program www.hydrogen.energy.gov Hydrogen & Our Energy Future  | HydrOgEn & Our EnErgy FuturE U.S. Department of Energy Hydrogen Program www.hydrogen.energy.gov u.S. department of Energy |  www.hydrogen.energy.gov Hydrogen & Our Energy Future Contents Introduction ................................................... p.1 Hydrogen - An Overview ................................... p.3 Production ..................................................... p.5 Delivery ....................................................... p.15 Storage ........................................................ p.19 Application and Use ........................................ p.25 Safety, Codes and Standards ............................... p.33

152

The semantics of the future  

E-Print Network (OSTI)

Natural languages use a number of different methods to refer to future eventualities: among them are futurates, as in (la), and futures, as in (lb) and (c). (1) a. The Red Sox (are) play(ing) the Yankees tomorrow. b. We'll ...

Copley, Bridget, Lynn, 1974-

2002-01-01T23:59:59.000Z

153

White Dwarf Light Curves: Constraining Convection and Mode Identification Using Non-sinusoidal Light Curves  

E-Print Network (OSTI)

In this paper we show how the formalism of Wu & Goldreich developed for weakly nonlinear white dwarf pulsations can be extended to the fully nonlinear case. Due to the computational simplification this affords over the simulations of Brickhill (1992) and Ising & Koester (2001), we are able to obtain the first ever fits of observed light curves. These fits allow us to obtain not only mode identifications but also to constrain the average depth of the convection zone and its sensitivity to changes in effective temperature. We are thus able to probe the fundamental physics of convection in these objects.

M. H. Montgomery

2004-11-14T23:59:59.000Z

154

FAQ : Future Scientists  

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

FAQ FAQ How do I get started as a school volunteer? You can talk with program coordinator, Rick Diamond, or any of the EETD staff who have already participated in the Future Scientist program. To contact Rick Diamond, please call (510) 486-4459 or enable JavaScript within your browser's preferences. When you are ready to plan a classroom visit, call the Community Resources for Science (CRS) and ask about school and grade availability for your topic. CRS staff will place you with a K-6 grade teacher in the East Bay. CRS can also provide excellent advise on classroom guidance and materials, and handle all the contact logistics. All you do is give them a call. Community Resources for Science 1375 Ada Street Berkeley, CA 94702 (510) 654-6433 http://www.crscience.org/

155

future science group  

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

35 35 ISSN 1759-7269 10.4155/BFS.13.56 © 2013 Future Science Ltd While lignocellulosic feedstocks represent a promising renewable and sustainable alternative to petroleum- based fuels, high production costs associated with con- version processes currently prevent them from being economically viable for large-scale implementation [1]. The production of biofuels from lignocellulosic feedstocks requires the depolymerization of cell wall carbohydrates into simple sugars that can be utilized during fermentation. However, the desired cellulose microfibrils are surrounded by a matrix of lignin and hemicellulose, which greatly inhibits their accessibility to hydrolytic enzymes [1,2]. Lignin is a phenolic polymer that reinforces the secondary cell wall, confers struc-

156

future science group  

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

61 61 ISSN 1759-7269 10.4155/BFS.11.150 © 2012 Future Science Ltd In 1950 Reese et al. proposed a mechanism for cel- lulose hydrolysis, which involved two general com- ponents, C 1 and C x , acting in sequence [1]. According to the model, the C 1 component first disrupted and swelled the crystalline cellulose, possibly releasing soluble oligo saccharides into solution. The C x compo- nent, which was shown to have endoglucanase activity, was then able to effectively hydrolyze the previously inaccessible substrate along with the soluble oligo- saccharides. Furthermore, the activity of the mixture was found to be higher than the activity of each com- ponent acting alone, indicating that the components were acting synergistically. In the following years, a number of groups began to identify and characterize

157

Future power supply  

Science Conference Proceedings (OSTI)

This article is a review of the U.S. needs for new generating capacity during the next decade. Considering regulatory and technical issues and assuming a modest annual load growth of 1.9%, it is anticipated that there will be a 90 GWe deficit by the year 2000. Likely sources to provide this additional capacity are reviewed, and it is concluded that most new plants will be gas-fired simple-cycle combustion turbines. This will occur mainly because the country has excess baseload capacity and needs to add a considerable amount of peaking capacity to bring the generation mix into balance. It is also concluded that fossil-fueled plants will provide the country`s baseload for the foreseeable future.

Campbell, N.A.; Harris, K. [Burns & McDonnell Engineering Co., Kansas City, MO (United States)

1993-03-01T23:59:59.000Z

158

Enhance the well stimulation learning curve  

Science Conference Proceedings (OSTI)

This article explains that well a well is stimulated to either overcome formation damage or compensate for naturally poor permeability. Regardless of the motivation, it's a complicated process that requires considerable advanced planning and organization if mishaps are to be avoided. Well stimulation should be divided into three distinctly separate states, each with its own set of requirements. Perhaps the most important and difficult of the three stages, particularly during this economically depressed period, is justification. Does the well's expected increase in productivity warrant stimulation costs. How reliable is the production increase estimate. The second state is the actual execution of the stimulation. Quality control-quality assurance programs should be intact and, again, accountability assigned. The third stage of the stimulation process is evaluation after completion. Systems should be examined for efficiency breakdowns. If so, they should be corrected to prevent future problems. It is often necessary to keep a close watch on the well's performance for a considerable length of time before the stimulation's impact can be accurately judged.

Not Available

1987-07-01T23:59:59.000Z

159

Solving Elliptic Curve Discrete Logarithm Problems Using Weil Descent  

E-Print Network (OSTI)

We provide the first cryptographically interesting instance of the elliptic curve discrete logarithm problem which resists all previously known attacks, but which can be solved with modest computer resources using the Weil descent attack methodology of Frey. We report on our implementation of index-calculus methods for hyperelliptic curves over characteristic two finite fields, and discuss the cryptographic implications of our results.

Michael Jacobson; Alfred Menezes; Andreas Stein

2001-01-01T23:59:59.000Z

160

Modelling light curves of binary systems: accounting for extended winds  

E-Print Network (OSTI)

We suggest a simple synthesis model of an eclipsing binary system which includes one component with strong stellar wind. Numerical simulations show that the shape of the light curve (and in particularly the widths of the minima) strongly depends on wind parameters. Wind effects are crucial in modelling light curves of binaries including e.g., WR stars.

Antokhina, E A; Cherepashchuk, A M

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Computing the Fréchet distance between piecewise smooth curves  

Science Conference Proceedings (OSTI)

We consider the Frechet distance between two curves which are given as a sequence of m+n curved pieces. If these pieces are sufficiently well-behaved, we can compute the Frechet distance in O(mnlog(mn)) time. The decision version of the problem can be ... Keywords: Shape matching

Günter Rote

2007-08-01T23:59:59.000Z

162

THE ECONOMICS OF CONSERVED-ENERGY "SUPPLY" CURVES  

E-Print Network (OSTI)

PWP-028 THE ECONOMICS OF CONSERVED-ENERGY "SUPPLY" CURVES Steven Stoft April 1995 This paper "SUPPLY" CURVES Steven Stoft April 1995 #12;Table of Contents The Economics of Conserved-Energy "Supply is part of the working papers series of the Program on Workable Energy Regulation (POWER). POWER

California at Berkeley. University of

163

PARABOLIC GEODESICS AS PARALLEL CURVES IN PARABOLIC GEOMETRIES  

E-Print Network (OSTI)

PARABOLIC GEODESICS AS PARALLEL CURVES IN PARABOLIC GEOMETRIES MARC HERZLICH Abstract. We give a simple characterization of the parabolic geodesics introduced by Cap, Slovák and Zádník for all parabolic then show that parabolic geodesics can be characterized as the following data: a curve on the manifold

Paris-Sud XI, Université de

164

Dynamic tracking of page miss ratio curve for memory management  

Science Conference Proceedings (OSTI)

Memory can be efficiently utilized if the dynamic memory demands of applications can be determined and analyzed at run-time. The page miss ratio curve(MRC), i.e. page miss rate vs. memory size curve, is a good performance-directed metric to serve this ... Keywords: memory management, power management, resource allocation

Pin Zhou; Vivek Pandey; Jagadeesan Sundaresan; Anand Raghuraman; Yuanyuan Zhou; Sanjeev Kumar

2004-12-01T23:59:59.000Z

165

Application of the key curve method to determining J-R curves for A533B steel  

SciTech Connect

The experimental development is described of a key curve for compact specimens of A533B steel and the use of this experimental key curve to generate the J-Resistance curve directly from the load displacement records without obtaining crack length estimates from unloading compliance, ultrasonics, electric potential or other techniques. Two complete key curve functions were developed, the first using subsized fatique precracked specimens, the second using subsized but machine notched specimens. In each case eight 1/2 T compact specimens with crack lengths from a/W = 0.5 to 0.9 were used to generate a series of digital load displacement records which were assembled in a computer file as the key curve for geometrically similar compact specimens. This key curve can be thought of as defining the locus of load displacement records expected for geometrically similar compact specimens of this material for similar loading conditions if no crack extension were to take place. Deviations between the key curve function and the load displacement record for a particular specimen can then be attributed to crack extension and a calculation for the amount of crack extension can be made. The key curve also allows corrections to be made to J values to account for effects of this crack extension.

Joyce, J.A.

1980-02-01T23:59:59.000Z

166

Application of the key curve and multi-specimen techniques to dynamic J-R Curve testing of alloy steel  

SciTech Connect

J-integral R-Curve tests were performed on three point bend specimens of a 3-Ni steel at three loading rates - quasi-static, intermediate (25mm/s) and a drop tower rate (2.54m/s). The key curve and multi-specimen procedures were employed for the higher rate tests and this investigation is focused primarily on details of the test method development. The multi-specimen and key curve techniques were found to yield upper shelf J-R Curves which were in substantial agreement at the elevated loading rates. Numerical smoothing techniques required to apply a key curve method appear to separate the oscillatory high frequency component from the load-displacement record. For the 3-Ni steel tested for this investigation both J/sub Ic/ and T were found to be elevated with increasing loading rate.

Joyce, J.A.; Hackett, E.M.

1986-04-01T23:59:59.000Z

167

Conservation screening curves to compare efficiency investments to power plants  

SciTech Connect

This paper describes a simplified methodology to compare supply and demand-side resources. The screening curve approach supplements with load shape information the data contained in a supply curve of conserved energy. In addition, a screening curve contains information on competing supply technologies, such as annualized capital costs, variable costs, and cost per delivered kWh. The information in the screening curve allows policymakers to promptly and conveniently compare the relevant parameters affecting supply and demand-side investment decisions. While many sophisticated computer models have evolved to account for the load shape impacts of energy efficiency investments, this sophistication has, by and large, not trickled down to spreadsheet-level or back-of-the-envelope analyses. This methodology allows a simple summary of load shape characteristics based on the output of the more complicated models. It offers many advantages, principal of which is clarity in analyzing supply and demand-side investment choices. This paper first describes how supply-side screening curves have been used in the past, and develops the conceptual tools needed to apply integrated supply/demand screening curves in the least-cost utility planning process. It then presents examples of supply and demand-side technologies and plots them on a representative screening curve. 12 refs., 3 figs., 3 tabs.

Koomey, J.; Rosenfeld, A.H.; Gadgil, A.

1989-10-01T23:59:59.000Z

168

Hydrogen: Fueling the Future  

DOE Green Energy (OSTI)

As our dependence on foreign oil increases and concerns about global climate change rise, the need to develop sustainable energy technologies is becoming increasingly significant. Worldwide energy consumption is expected to double by the year 2050, as will carbon emissions along with it. This increase in emissions is a product of an ever-increasing demand for energy, and a corresponding rise in the combustion of carbon containing fossil fuels such as coal, petroleum, and natural gas. Undisputable scientific evidence indicates significant changes in the global climate have occurred in recent years. Impacts of climate change and the resulting atmospheric warming are extensive, and know no political or geographic boundaries. These far-reaching effects will be manifested as environmental, economic, socioeconomic, and geopolitical issues. Offsetting the projected increase in fossil energy use with renewable energy production will require large increases in renewable energy systems, as well as the ability to store and transport clean domestic fuels. Storage and transport of electricity generated from intermittent resources such as wind and solar is central to the widespread use of renewable energy technologies. Hydrogen created from water electrolysis is an option for energy storage and transport, and represents a pollution-free source of fuel when generated using renewable electricity. The conversion of chemical to electrical energy using fuel cells provides a high efficiency, carbon-free power source. Hydrogen serves to blur the line between stationary and mobile power applications, as it can be used as both a transportation fuel and for stationary electricity generation, with the possibility of a distributed generation energy infrastructure. Hydrogen and fuel cell technologies will be presented as possible pollution-free solutions to present and future energy concerns. Recent hydrogen-related research at SLAC in hydrogen production, fuel cell catalysis, and hydrogen storage will be highlighted in this seminar.

Leisch, Jennifer

2007-02-27T23:59:59.000Z

169

QUEST1 VARIABILITY SURVEY. III. LIGHT CURVE CATALOG UPDATE  

Science Conference Proceedings (OSTI)

This paper reports an update to the QUEST1 (QUasar Equatorial Survey Team, Phase 1) Variability Survey (QVS) light curve catalog, which links QVS instrumental magnitude light curves to Sloan Digital Sky Survey (SDSS) objects and photometry. In the time since the original QVS catalog release, the overlap between publicly available SDSS data and QVS data has increased by 8% in sky coverage and 16,728 in number of matched objects. The astrometric matching and the treatment of SDSS masks have been refined for the updated catalog. We report on these improvements and present multiple bandpass light curves, global variability information, and matched SDSS photometry for 214,941 QUEST1 objects.

Rengstorf, A. W.; Thompson, D. L. [Purdue University Calumet, Department of Chemistry and Physics, 2200 169th St., Hammond, IN 46323 (United States); Mufson, S. L.; Honeycutt, R. K.; Adams, B.; Baltay, C.; Gebhard, M. [Indiana University, 727 E. 3rd St., Bloomington, IN 47405 (United States); Andrews, P.; Coppi, P.; Emmet, W. [Yale University, Department of Physics, P.O. Box 208121, New Haven, CT 06250-8121 (United States); Vivas, A. K.; Abad, C.; Bongiovanni, A.; Briceno, C.; Bruzual, G.; Prugna, F. Della; Hernandez, J. [Centro de Investigaciones de AstronomIa, Apartado Postal 264, Merida 5101-A (Venezuela, Bolivarian Republic of); Bailyn, C. [Yale University, Department of Astronomy, P.O. Box 208101, New Haven, CT 06250-8101 (United States); Ferrin, I.; Fuenmayor, F. [Universidad de Los Andes, Apartado Postal 26, Merida 5251 (Venezuela, Bolivarian Republic of)], E-mail: adamwr@calumet.purdue.edu (and others)

2009-03-15T23:59:59.000Z

170

Future of Voting System Symposium  

Science Conference Proceedings (OSTI)

... for the poster and demonstration session can be submitted to future-voting@ nist ... NIST Visitor Information airports, directions, public transportation.

2013-03-04T23:59:59.000Z

171

Central Appalachian Coal Futures Overview  

U.S. Energy Information Administration (EIA)

Central Appalachian Coal Futures Overview In 1996, the New York Mercantile Exchange (NYMEX) began providing companies in the electric power industry with secure and ...

172

DOE Updated U.S. Geothermal: Supply Curve (Presentation)  

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

2009 DOE GEOTHERMAL SUPPLY CURVE UPDATE: Prepared by the National Renewable Energy Laboratory (NREL) 2009 DOE GEOTHERMAL SUPPLY CURVE UPDATE: Prepared by the National Renewable Energy Laboratory (NREL) eere.energy.gov The Parker Ranch installation in Hawaii Geothermal Technologies Program (GTP) DOE Updated U.S. Geothermal Supply Curve Chad Augustine National Renewable Energy Laboratory Strategic Energy Analysis Center Chad.Augustine@nrel.gov February 1, 2010 Chad Augustine (NREL) Katherine R. Young (NREL) Arlene Anderson (DOE-GTP) NREL/PR-6A2-47527 Pacific Gas & Electric/PIX 00059 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. 2 | 2009 DOE GEOTHERMAL SUPPLY CURVE UPDATE: Prepared by the National Renewable Energy Laboratory (NREL) eere.energy.gov

173

Development of an Equivalent Wind Plant Power-Curve: Preprint  

SciTech Connect

Development of an equivalent wind plant power-curve becomes highly desirable and useful in predicting plant output for a given wind forecast. Such a development is described and summarized in this paper.

Wan, Y. H.; Ela, E.; Orwig, K.

2010-06-01T23:59:59.000Z

174

Convex hulls of a curve in control theory  

Science Conference Proceedings (OSTI)

A classification is obtained for typical singularities of the local transitivity sets of control systems on three-dimensional manifolds with nonconvex indicatrices that are closed smooth spatial curves. Bibliography: 8 titles.

Kurbatskii, Aleksei N [Moscow School of Economics of Lomonosov MSU, Moscow (Russian Federation)

2012-03-31T23:59:59.000Z

175

Solvability of small curves of genus 2 - CECM  

E-Print Network (OSTI)

Supporting data: files.zip (2.7Mb). Contains: AllCurves.m (22Mb): Contains all square free polynomials of degree 5 or 6 with integer coordinates between -3 and ...

176

Forecasting distribution system loads using curve shape clustering  

SciTech Connect

Trending using curve fitting to past small area load growth is an economical but not highly accurate method of forecasting loads for distribution planning. A new trending method uses clustering of historical load at the small area level as the forecast algorithm. This new method has significant performance advantages over normal curve fit methods and can be implemented in 16 bit integer arithmetic on most computers. The method and test results are discussed in detail.

Willis, H.L.; Northcote-Green, J.E.D.; Schauer, A.E.; Vismor, T.D.

1983-04-01T23:59:59.000Z

177

Phase light curves for extrasolar Jupiters and Saturns  

E-Print Network (OSTI)

We predict how a remote observer would see the brightness variations of giant planets similar to Jupiter and Saturn as they orbit their central stars. We model the geometry of Jupiter, Saturn and Saturn's rings for varying orbital and viewing parameters. Scattering properties for the planets and rings at wavelenghts 0.6-0.7 microns follow Pioneer and Voyager observations, namely, planets are forward scattering and rings are backward scattering. Images of the planet with or without rings are simulated and used to calculate the disk-averaged luminosity varying along the orbit, that is, a light curve is generated. We find that the different scattering properties of Jupiter and Saturn (without rings) make a substantial difference in the shape of their light curves. Saturn-size rings increase the apparent luminosity of the planet by a factor of 2-3 for a wide range of geometries. Rings produce asymmetric light curves that are distinct from the light curve of the planet without rings. If radial velocity data are available for the planet, the effect of the ring on the light curve can be distinguished from effects due to orbital eccentricity. Non-ringed planets on eccentric orbits produce light curves with maxima shifted relative to the position of the maximum planet's phase. Given radial velocity data, the amount of the shift restricts the planet's unknown orbital inclination and therefore its mass. Combination of radial velocity data and a light curve for a non-ringed planet on an eccentric orbit can also be used to constrain the surface scattering properties of the planet. To summarize our results for the detectability of exoplanets in reflected light, we present a chart of light curve amplitudes of non-ringed planets for different eccentricities, inclinations, and the viewing azimuthal angles of the observer.

Ulyana A. Dyudina; Penny D. Sackett; Daniel D. R. Bayliss; Sara Seager; Carolyn C. Porco; Henry B. Throop; Luke Dones

2004-06-17T23:59:59.000Z

178

Conformal formulation of cosmological futures  

E-Print Network (OSTI)

We summarise the new conformal framework of an Anisotropic Future Endless Universe and an Anisotropic Future Singularity. Both new definitions are motivated by, but not restricted to quiescent cosmology and the Weyl curvature hypothesis, which previously only possessed a framework for a classical initial state of the universe, namely the Isotropic Singularity. Some of the features of the framework are briefly discussed.

Philipp A Hoehn; Susan M Scott

2010-01-22T23:59:59.000Z

179

Swept measurement of high power I-V curves  

SciTech Connect

Performance evaluation of photovoltaic (PV) arrays under a variety of conditions provides important information for the design and maintenance of PV systems. One of the principal methods for assessing an array's performance is to plot its current, I, versus voltage, V, curve. Following a brief review of techniques for measuring the I-V curve, a new capacitive-based approach is presented. It uses a rapid sweep of the I-V curve which substantially reduces the average power transfer between array and load, and in turn, substantially reduces the size and weight of the curve tracer. Both theoretical and practical aspects of the approach are presented for a 10-kW unit. Performance is verified by comparison with I-V curves obtained by using a conventional load. The agreement is found to be excellent. Approximately an order of magnitude reduction in size, weight and power consumption over conventional units was realized with the experimental I-V curve tracer.

Cox, C.H.; Warner, T.H.

1982-09-01T23:59:59.000Z

180

Swept measurement of high-power I-V curves  

SciTech Connect

Performance evaluation of photovoltaic (PV) arrays under a variety of conditions provides important information for the design and maintenance of PV systems. One of the principal methods for assessing an arrays's performance is to plot its current, I, versus voltage, V, curve. Following a brief review of techniques for measuring the I-V curve, a new capacitive-based approach is presented. It uses a rapid sweep of the I-V curve which substantially reduces the average power transfer between array and load, and in turn, substantially reduces the size and weight of the curve tracer. Both theoretical and practical aspects of the approach are presented for a 10-kW unit. Performance is verified by comparison with I-V curves obtained by using a conventional load. The agreement is found to be excellent. Approximately an order of magnitude reduction in size, weight and power consumption over conventional units was realized with the experimental I-V curve tracer.

Cox, C.H. III; Warner, T.H.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Program Pu Futures 2006  

SciTech Connect

The coordination chemistry of plutonium remains relatively unexplored. Thus, the fundamental coordination chemistry of plutonium is being studied using simple multi-dentate ligands with the intention that the information gleaned from these studies may be used in the future to develop plutonium-specific sequestering agents. Towards this goal, hard Lewis-base donors are used as model ligands. Maltol, an inexpensive natural product used in the commercial food industry, is an ideal ligand because it is an all-oxygen bidentate donor, has a rigid structure, and is of small enough size to impose little steric strain, allowing the coordination preferences of plutonium to be the deciding geometric factor. Additionally, maltol is the synthetic precursor of 3,4-HOPO, a siderophore-inspired bidentate moiety tested by us previously as a possible sequestering agent for plutonium under acidic conditions. As comparisons to the plutonium structure, Ce(IV) complexes of the same and related ligands were examined as well. Cerium(IV) complexes serve as good models for plutonium(IV) structures because Ce(IV) has the same ionic radius as Pu(IV) (0.94 {angstrom}). Plutonium(IV) maltol crystals were grown out of a methanol/water solution by slow evaporation to afford red crystals that were evaluated at the Advanced Light Source at Lawrence Berkeley National Laboratory using single crystal X-ray diffraction. Cerium(IV) complexes with maltol and bromomaltol were crystallized via slow evaporation of the mother liquor to afford tetragonal, black crystals. All three complexes crystallize in space group I4{sub 1}/a. The Ce(IV) complex is isostructural with the Pu(IV) complex, in which donating oxygens adopt a trigonal dodecahedral geometry around the metal with the maltol rings parallel to the crystallographic S{sub 4} axis and lying in a non-crystallographic mirror plane of D{sub 2d} molecular symmetry (Fig 1). The metal-oxygen bonds in both maltol complexes are equal to within 0.04 {angstrom} for each oxygen type. In contrast to the maltol structures, the cerium(IV) bromomaltol complex arranges the maltol rings in a drastically different manner while maintaining the S{sub 4} crystallographic symmetry (Fig 2). The coordination geometry around the cerium remains a trigonal dodecahedron, but the chelating ligands span a different set of edges as in the maltol structures; the two-fold related bromomaltol ligands twist away from planarity, breaking the D{sub 2d} molecular symmetry. It is unlikely that steric interaction with a bromine on the same molecule would have caused the observed rearrangement, as there would be sufficient separation between them to accommodate their bulk in the geometry of the plutonium and cerium maltol complexes. The extended packing in the unit cell of both the plutonium and cerium maltol crystals indicates that pi stacking occurs throughout the lattice via the maltol rings with close contacts between rings of approximately 3.6 {angstrom}. Introduction of the bromine to this structure would disrupt the packing that would allow these interactions, causing the molecule to adopt the geometry present in the bromomaltol structure. In this unexpected arrangement the complex is still able to maintain some pi stacking with the maltol rings of adjacent molecules with a close contact of approximately 3.3 {angstrom}. Additionally, the bromine on each ligand is arranged such that its next closest contact is with a bromine 3.64 {angstrom} away on another molecule. Despite the different ligand geometry, the bromomaltol structure exhibits metal-oxygen bond distances that are within 0.06 {angstrom} of those in the maltol complexes.

Fluss, M

2006-06-12T23:59:59.000Z

182

Alternative Energy Development and China's Energy Future  

E-Print Network (OSTI)

pilot is successful. The CSP tower power plant consists of 100 curved heliostats which concentrate solar radiation

Zheng, Nina

2012-01-01T23:59:59.000Z

183

Alternative procedures for J-R curve determination  

SciTech Connect

This investigation evaluates alternative displacement techniques with the single-specimen compliance (SSC) procedure which do not require the commonly used load-line displacement measurements in a compact toughness (CT) specimen to determine the J-R curve. The two techniques studied are a double-clip-gage technique involving both crack-mouth displacement and load-line displacement at the edges of the specimen and a technique which requires only crack-mouth displacement. R-curves developed using these techniques are compared to R-curves developed with the normal load-line based deflections. In addition, results of a round-robin program using the SSC procedure are discussed in terms of validating the double-clip-gage technique. R-curves developed from crack-mouth displacements on the J-integral specimen from ASTM E 813 suggest that the standard ASTM E 399 specimen design can be used for both linear-elastic (e.g., K/sub Ic/) and elastic-plastic (e.g., R-curve toughness assessments.

Hiser, A.L.; Loss, F.J.

1983-07-01T23:59:59.000Z

184

AUTO ID FUTURE - FREQUENCY AGNOSTIC  

E-Print Network (OSTI)

Identification of information is one key to the development of intelligent decision systems of the future. Frequency agnostic automatic identification is only one step in the physical world to make physical objects identify ...

DATTA, SHOUMEN

185

FutureGen_factsheet.cdr  

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

gasification plant and the receiving geologic formation. Sequester at least 90 percent of CO2 emissions from the plant with the future potential to capture and sequester nearly 100...

186

CURRENT AND FUTURE IGCC TECHNOLOGIES:  

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

future. On the other hand, the projected demand for electricity coupled with high fuel costs (particularly high oil prices and volatile natural gas prices) presents a near-term...

187

The Future of Housing - TMS  

Science Conference Proceedings (OSTI)

May 20, 2008 ... From climate change to power deregulation and suburban sprawl to the rapid ... This presentation speaks directly to our future housing needs and ... using the 2007 Carnegie Mellon Solar Decathlon house as a case study.

188

Assessment of Reactivity Margins and Loading Curves for PWR Burnup Credit Cask Designs  

SciTech Connect

This report presents studies to assess reactivity margins and loading curves for pressurized water reactor (PWR) burnup-credit criticality safety evaluations. The studies are based on a generic high-density 32-assembly cask and systematically vary individual calculational (depletion and criticality) assumptions to demonstrate the impact on the predicted effective neutron multiplication factor, k{sub eff}, and burnup-credit loading curves. The purpose of this report is to provide a greater understanding of the importance of input parameter variations and quantify the impact of calculational assumptions on the outcome of a burnup-credit evaluation. This study should provide guidance to regulators and industry on the technical areas where improved information will most enhance the estimation of accurate subcritical margins. Based on these studies, areas where future work may provide the most benefit are identified. The report also includes an evaluation of the degree of burnup credit needed for high-density casks to transport the current spent nuclear fuel inventory. By comparing PWR discharge data to actinide-only based loading curves and determining the number of assemblies that meet the loading criteria, this evaluation finds that additional negative reactivity (through either increased credit for fuel burnup or cask design/utilization modifications) is necessary to accommodate the majority of current spent fuel assemblies in high-capacity casks. Assemblies that are not acceptable for loading in the prototypic high-capacity cask may be stored or transported by other means (e.g., lower capacity casks that utilize flux traps and/or increased fixed poison concentrations or high-capacity casks with design/utilization modifications).

Wagner, J.C.

2002-12-17T23:59:59.000Z

189

How to Measure a Camera's Response Curve from Scratch  

E-Print Network (OSTI)

This paper describes how the response curve of a video camera can be determined with the aid of a sheet of paper and two desk lamps only. The calibration process is based on the superposition law of incoherent light and does not make use of any calibrated measurement instrument. 1 Introduction Digitizing and processing of video images has steadily gained importance in recent years. Various applications profit from this technique, in particular industrial inspection, optical measuring, desktop publishing, and remote sensing. For applications which are sensitive to image quality an exact characterization of the properties of the data acquisition equipment is essential. Knowing the equipment's response curve is especially important because many applications either rely on a linear response curve or on a specific power law (fl-correction). Relying on the data sheets of the measurement equipment is only partially useful because 1. The data is often missing (e.g. for the digitizer). 2. The ...

Martin Bichsel; Krystyna W. Ohnesorge

1993-01-01T23:59:59.000Z

190

DEVELOPING FLOW AND HEAT TRANSFER IN STRONGLY CURVED DUCTS OF RECTANGULAR CROSS-SECTION  

E-Print Network (OSTI)

Forced Convection Heat Transfer in Curved RectangularInfluence of Curvature on Heat Transfer to IncompressibleT. , "Forced Convective Heat Transfer in a Curved Channel

Yee, G.

2010-01-01T23:59:59.000Z

191

The shape of heavy ion upset cross section curves  

Science Conference Proceedings (OSTI)

An approach is developed to describe heavy ion single event upset cross section curves. It accounts for all significant mechanisms which cause the curve to deviate from ideal, step function-like behavior. The method is developed in terms of the charge deposited by an incident ion in a memory cell and is therefore free of ambiguities associated with the effective LET concept. It is suggested that this type of approach is an improvement over current methods used to characterize a memory response to accelerator tests. This has significant implications for predicting space upset rates.

Xapsos, M.A. (Naval Research Lab., Washington, DC (United States). Radiation Effects Branch); Weatherford, T.R.; Shapiro, P. (SFA, Inc., Landover, MD (United States))

1993-12-01T23:59:59.000Z

192

Logging and Agricultural Residue Supply Curves for the Pacific Northwest  

DOE Green Energy (OSTI)

This report quantified the volume of logging residues at the county level for current timber harvests. The cost of recovering logging residues was determined for skidding, yearding, loading, chipping and transporting the residues. Supply curves were developed for ten candidate conversion sites in the Pacific Northwest Region. Agricultural field residues were also quantified at the county level using five-year average crop yields. Agronomic constraints were applied to arrive at the volumes available for energy use. Collection costs and transportation costs were determined and supply curves generated for thirteen candidate conversion sites.

Kerstetter, James D.; Lyons, John Kim

2001-01-01T23:59:59.000Z

193

Future risks of satellite-based tracking  

Science Conference Proceedings (OSTI)

This study finds out if in the future, some special risks concerning satellite-based tracking and navigation occur. To find out possible future risks, future research methods such as scenarios were being used. Forecasting the future is impossible, but ... Keywords: future research, risk management, satellite-base tracking, satellite-based navigation, tracking

Miikka Ohisalo; Otto Tiuri; Tatu Urpila; Jyri Rajamäki

2011-03-01T23:59:59.000Z

194

Stochastic Analysis of Wind Turbine Power Curves Edgar Anahua  

E-Print Network (OSTI)

procedure (IEC 61400-12) for power performance charac- terization of a single wind turbines is shown by the standard IEC 61400-12 3 [12]. In this standard procedure the power curve of a single wind turbine of the blade pitch angle system of a wind turbine [9]. The phase averaged P(t,t ) function depends on the time

Peinke, Joachim

195

Real-time rendering of textures with feature curves  

Science Conference Proceedings (OSTI)

The standard bilinear interpolation on normal maps results in visual artifacts along sharp features, which are common for surfaces with creases, wrinkles, and dents. In many cases, spatially varying features, like the normals near discontinuity curves, ... Keywords: Curvilinear feature rendering, GPU algorithms, distance function, normal mapping, resolution independence

Evgueni Parilov; Denis Zorin

2008-03-01T23:59:59.000Z

196

Offshore Wind Resource Global Wind Potential Supply Curves by...  

Open Energy Info (EERE)

Offshore Wind Resource Global Wind Potential Supply Curves by Country, Class, and Depth (quantities in GW)
2012-07-12T22:51:45Z 2012-07-13T20:49:20Z I am submitting data from...

197

Complex Fluid Analysis with the Advanced Distillation Curve Approach  

E-Print Network (OSTI)

the flask. Heaters are controlled by a model predictive proportional-integral-derivative (PID) controllerComplex Fluid Analysis with the Advanced Distillation Curve Approach Thomas J. Bruno, Lisa S. Ott of petroleomics, as asserted by Marshall and Rodgers, include quantitation of species, modeling, and informatics

198

The Foundation and Application of Horizontal Well Deliverability Type Curves  

Science Conference Proceedings (OSTI)

As a development technique to improve oil and gas deliverability, horizontal wells have recently become an important technical support to develop low permeability or extra-low permeability and unconventional oil and gas fields. Therefore, it is quite ... Keywords: Horizontal well, Impermeable and circular boundary reservoir, Stehfest numerical inversion, Blasingame decline curves, Single well dynamic reserves

Rong Wang; Yonggang Duan; Quantang Fang; Cao Tingkuan; Mingqiang Wei

2011-10-01T23:59:59.000Z

199

Analytic Definition of Curves and Surfaces by Parabolic Blending  

E-Print Network (OSTI)

A procedure for interpolating between specified points of a curve or surface is described. The method guarantees slope continuity at all junctions. A surface panel divided into p x q contiguous patches is completely specified by the coordinates of (p+1) x (q+1) points. Each individual patch, however, depends parametrically on the coordinates of 16 points, allowing shape flexibility and global conformity.

A. W. Overhauser

2005-03-22T23:59:59.000Z

200

Projecting diffusion along the normal bundle of a plane curve  

E-Print Network (OSTI)

The purpose of this paper is to provide new formulas for the estimation of the effective diffusion coefficient of an equation of Fick-Jacob's type obtained by projecting the two-dimensional diffusion equation along the normal direction of an arbitrary plane curve.

Carlos Valero Valdes; Rafael Herrera Guzman

2013-08-21T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Energy Options for the Future  

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

Options Options for the Future * John Sheffield, 1 Stephen Obenschain, 2,12 David Conover, 3 Rita Bajura, 4 David Greene, 5 Marilyn Brown, 6 Eldon Boes, 7 Kathyrn McCarthy, 8 David Christian, 9 Stephen Dean, 10 Gerald Kulcinski, 11 and P.L. Denholm 11 This paper summarizes the presentations and discussion at the Energy Options for the Future meeting held at the Naval Research Laboratory in March of 2004. The presentations covered the present status and future potential for coal, oil, natural gas, nuclear, wind, solar, geo- thermal, and biomass energy sources and the effect of measures for energy conservation. The longevity of current major energy sources, means for resolving or mitigating environmental issues, and the role to be played by yet to be deployed sources, like fusion, were major topics of presentation and discussion. KEY WORDS: Energy; fuels; nuclear; fusion; efficiency; renewables.

202

Water for future Mars astronauts?  

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

Water for future Mars astronauts? Water for future Mars astronauts? Water for future Mars astronauts? Within its first three months on Mars, NASA's Curiosity Rover saw a surprising diversity of soils and sediments along a half-kilometer route that tell a complex story about the gradual desiccation of the Red Planet. September 26, 2013 This image shows two areas on Mars in a location named Rocknest that were scooped out by the Curiosity Rover last year. Researchers took samples of the areas to determine whether they were wetter underneath or whether they dried out after scooping. Researchers found that soil moisture was consistent at the surface and underneath. Nevertheless, there is a small amount of water in the soil that astronauts might be able to use to sustain themselves. These finding and others are outlined in a series of papers appearing today in the Journal "Science." (Image credit: NASA)

203

Hydrogen Future Act of 1996  

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

4-271-OCT. 9, 1996 4-271-OCT. 9, 1996 HYDROGEN FUTURE ACT OF 1996 110 STAT. 3304 PUBLIC LAW 104-271-OCT. 9, 1996 Oct. 9, 1996 [H.R. 4138] Hydrogen Future Act of 1996. 42 USC 12401 note. 42 USC 7238 note. Public Law 104-271 104th Congress An Act To authorize the hydrogen research, development, and demonstration programs of the Department of Energy, and for other purposes. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT TITLE. This Act may be cited as the ''Hydrogen Future Act of 1996''. SEC. 2. DEFINITIONS. For purposes of titles II and III- (1) the term ''Department'' means the Department of Energy; and (2) the term ''Secretary'' means the Secretary of Energy. TITLE I-HYDROGEN SEC. 101. PURPOSES AND DEFINITIONS.

204

Texas Industries of the Future  

E-Print Network (OSTI)

The purpose of the Texas Industries of the Future program is to facilitate the development, demonstration and adoption of advanced technologies and adoption of best practices that reduce industrial energy usage, emissions, and associated costs, resulting in improved competitive performance. The bottom line for Texas industry is savings in energy and materials, cost-effective environmental compliance, increased productivity, reduced waste, and enhanced product quality. The state program leverages the programs and tools of the federal Department of Energy's Industries of the Future. At the federal level, there are nine Industries of the Future: refining, chemicals, aluminum, steel, metal casting, glass, mining, agriculture, and forest products. These industries were selected nationally because they supply over 90% of the U.S. economy's material needs and account for 75% of all energy use by U.S. industry. In Texas, three IOF sectors, chemicals, refining and forest products, account for 86% of the energy used by industry in this state.

Ferland, K.

2002-04-01T23:59:59.000Z

205

Rethinking the Car of the Future  

E-Print Network (OSTI)

Rethinking the Car of the Future Darnel Sperhng Reprint UCTC~flaUon or Rethinking the Car of the Future Daniel SperlingSPERLING Rethinking the Car of the Future I I The governmen>

Sperling, Daniel

2001-01-01T23:59:59.000Z

206

Rethinking the Car of the Future  

E-Print Network (OSTI)

Rethinking the Car of the Future Darnel Sperhng Reprint UCTC~flaUon or Rethinking the Car of the Future Daniel SperlingSPERLING Rethinking the Car of the Future I I The governmen>

Sperling, Daniel

1996-01-01T23:59:59.000Z

207

FUTURE POWER GRID INITIATIVE Decision Support for Future  

E-Print Network (OSTI)

data to generate and share mission-critical analysis and insights. November 2012 PNNL-SA-90020 Gariann Gelston Pacific Northwest National Laboratory (509) 372-4480 gariann.gelston@pnnl.gov Angie Dalton Pacific Northwest National Laboratory (509) 371-6607 angela.dalton@pnnl.gov ABOUT FPGI The Future Power Grid

208

Future Energy Yorkshire | Open Energy Information  

Open Energy Info (EERE)

Future Energy Yorkshire Jump to: navigation, search Name Future Energy Yorkshire Place Leeds, United Kingdom Zip LS11 5AE Sector Services Product Leeds-based, wholly owned...

209

Future Science & Technology Programs | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

Apply for Our Jobs Our Jobs Working at NNSA Blog Future Science & Technology Programs Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs...

210

Aluminum: Industry of the future  

SciTech Connect

For over a century, the US aluminum industry has led the global market with advances in technology, product development, and marketing. Industry leaders recognize both the opportunities and challenges they face as they head into the 21st century, and that cooperative R and D is key to their success. In a unique partnership, aluminum industry leaders have teamed with the US Department of Energy`s Office of Industrial Technologies (OIT) to focus on innovative technologies that will help to strengthen the competitive position of the US aluminum industry and, at the same time, further important national goals. This industry-led partnership, the Aluminum Industry of the Future, promotes technologies that optimize the use of energy and materials in operations and reduce wastes and energy-related emissions. Led by The Aluminum Association, industry leaders began by developing a unified vision of future market, business, energy, and environmental goals. Their vision document, Partnerships for the Future, articulates a compelling vision for the next 20 years: to maintain and grow the aluminum industry through the manufacture and sale of competitively priced, socially desirable, and ecologically sustainable products. Continued global leadership in materials markets will require the combined resources of industry, universities, and government laboratories. By developing a unified vision, the aluminum industry has provided a framework for the next step in the Industries of the Future process, the development of a technology roadmap designed to facilitate cooperative R and D.

1998-11-01T23:59:59.000Z

211

Options for Kentucky's Energy Future  

Science Conference Proceedings (OSTI)

Three important imperatives are being pursued by the Commonwealth of Kentucky: ? Developing a viable economic future for the highly trained and experienced workforce and for the Paducah area that today supports, and is supported by, the operations of the US Department of Energy’s (DOE’s) Paducah Gaseous Diffusion Plant (PGDP). Currently, the PGDP is scheduled to be taken out of service in May, 2013. ? Restructuring the economic future for Kentucky’s most abundant indigenous resource and an important industry – the extraction and utilization of coal. The future of coal is being challenged by evolving and increasing requirements for its extraction and use, primarily from the perspective of environmental restrictions. Further, it is important that the economic value derived from this important resource for the Commonwealth, its people and its economy is commensurate with the risks involved. Over 70% of the extracted coal is exported from the Commonwealth and hence not used to directly expand the Commonwealth’s economy beyond the severance taxes on coal production. ? Ensuring a viable energy future for Kentucky to guarantee a continued reliable and affordable source of energy for its industries and people. Today, over 90% of Kentucky’s electricity is generated by burning coal with a delivered electric power price that is among the lowest in the United States. Anticipated increased environmental requirements necessitate looking at alternative forms of energy production, and in particular electricity generation.

Larry Demick

2012-11-01T23:59:59.000Z

212

Debris and Future Space Activities  

E-Print Network (OSTI)

Debris and Future Space Activities Prof. Joel R. Primack Physics Department University eleven year cycle, it heats the upper atmosphere and makes it expand so that debris and spacecraft in low which overflows occasionally and washes only the lowest hillsides clear of debris. Debris in orbit

California at Santa Cruz, University of

213

Pheromones, probabilities, and multiple futures  

Science Conference Proceedings (OSTI)

Most agent-based modeling techniques generate only a single trajectory in each run, greatly undersampling the space of possible trajectories. Swarming agents can explore many alternative futures in parallel, particularly when they interact through digital ... Keywords: Markov decision process, Monte Carlo tree search, agent-based modeling, polyagent, probability distributions, swarming

H. Van Dyke Parunak

2010-05-01T23:59:59.000Z

214

Natural Gas Futures Prices (NYMEX)  

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

120313 View History Spot Price Henry Hub 3.871 3.871 3.871 3.853 1997-2013 Futures Prices Contract 1 3.818 3.895 3.895 3.954 3.988 3.976 1994-2013 Contract 2 3.864 3.899 3.899...

215

Motor System Energy Efficiency Supply Curves: A Methodology for Assessing  

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

Motor System Energy Efficiency Supply Curves: A Methodology for Assessing Motor System Energy Efficiency Supply Curves: A Methodology for Assessing the Energy Efficiency Potential of Industrial Motor Systems Speaker(s): Ali Hasanbeigi Date: February 8, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Aimee McKane Motor-driven equipment accounts for approximately 60% of manufacturing final electricity use worldwide. A major barrier to effective policymaking, and to more global acceptance of the energy efficiency potential in industrial motor systems, is the lack of a transparent methodology for quantifying the magnitude and cost-effectiveness of these energy savings. This paper presents the results of groundbreaking analyses conducted for five countries and one region to begin to address this barrier. Using a combination of expert opinion and available data from the United States,

216

McKinsey Carbon Supply Curves | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » McKinsey Carbon Supply Curves Jump to: navigation, search Tool Summary LAUNCH TOOL Name: McKinsey Carbon Supply Curves Agency/Company /Organization: McKinsey and Company Sector: Energy, Land Topics: GHG inventory, Resource assessment, Pathways analysis, Background analysis Website: www.mckinsey.com/clientservice/ccsi/ References: McKinsey Climate Change Special Initiative[1] "The transition to a low-carbon economy represents one of the key challenges facing leaders in the early 21st century. Our Climate Change Special Initiative is a cross-functional and cross-industry effort, which

217

Nonparametric inference of quantile curves for nonstationary time series  

E-Print Network (OSTI)

The paper considers nonparametric specification tests of quantile curves for a general class of nonstationary processes. Using Bahadur representation and Gaussian approximation results for nonstationary time series, simultaneous confidence bands and integrated squared difference tests are proposed to test various parametric forms of the quantile curves with asymptotically correct type I error rates. A wild bootstrap procedure is implemented to alleviate the problem of slow convergence of the asymptotic results. In particular, our results can be used to test the trends of extremes of climate variables, an important problem in understanding climate change. Our methodology is applied to the analysis of the maximum speed of tropical cyclone winds. It was found that an inhomogeneous upward trend for cyclone wind speeds is pronounced at high quantile values. However, there is no trend in the mean lifetime-maximum wind speed. This example shows the effectiveness of the quantile regression technique.

Zhou, Zhou

2010-01-01T23:59:59.000Z

218

Modeling software artifact count attribute with s-curves  

E-Print Network (OSTI)

The estimation of software project attributes, such as size, is important for software project resource planning and process control. However, research regarding software attribute modeling, such as size, effort, and cost, are high-level and static in nature. This research defines a new operation-level software project attribute that describes the operational characteristic of a software project. The result is a measurement based on the s-curve parameter that can be used as a control variable for software project management. This result is derived from modeling the count of artifact instances created by the software engineering process, which are stored by software tools. Because of the orthogonal origin of this attribute in regard to traditional static estimators, this s-curve based software attribute can function as an additional indicator of software project activities and also as a quantitative metric for assessing development team capability.

Ma, Norman K.

2007-12-01T23:59:59.000Z

219

Fast B-spline Curve Fitting by L-BFGS  

E-Print Network (OSTI)

We propose a novel method for fitting planar B-spline curves to unorganized data points. In traditional methods, optimization of control points and foot points are performed in two very time-consuming steps in each iteration: 1) control points are updated by setting up and solving a linear system of equations; and 2) foot points are computed by projecting each data point onto a B-spline curve. Our method uses the L-BFGS optimization method to optimize control points and foot points simultaneously and therefore it does not need to perform either matrix computation or foot point projection in every iteration. As a result, our method is much faster than existing methods.

Zheng, Wenni; Liu, Yang; Wang, Wenping

2012-01-01T23:59:59.000Z

220

Active learning to maximize area under the ROC curve  

E-Print Network (OSTI)

In active learning, a machine learning algorithm is given an unlabeled set of examples U, and is allowed to request labels for a relatively small subset of U to use for training. The goal of active learning is to judiciously choose which examples in U to have labeled in order to optimize some performance criterion, e.g. generalization accuracy. ROC (Receiver Operating Characteristic) analysis has attracted high attention in machine learning research in the last few years. ROC curves have been advocated and gradually adopted as an al-ternative to classical machine learning metrics such as misclassification rate. We present several heuristics for active learning designed to optimize area under the ROC curve (AUC) and extensively evaluate them, along with other commonly-used active learning algorithms. One of our algorithms (ESTAUC) was the top performer. When good posterior probability estimates were available, ESTAUC and another of our heuristics (RAR) were by far the best.

Matthew G. Culver

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

EARLY SUPERNOVAE LIGHT CURVES FOLLOWING THE SHOCK BREAKOUT  

Science Conference Proceedings (OSTI)

The first light from a supernova (SN) emerges once the SN shock breaks out of the stellar surface. The first light, typically a UV or X-ray flash, is followed by a broken power-law decay of the luminosity generated by radiation that leaks out of the expanding gas sphere. Motivated by recent detection of emission from very early stages of several SNe, we revisit the theory of shock breakout and the following emission, paying special attention to the photon-gas coupling and deviations from thermal equilibrium. We derive simple analytic light curves of SNe from various progenitors at early times. We find that for more compact progenitors, white dwarfs, Wolf-Rayet stars (WRs), and possibly more energetic blue-supergiant explosions, the observed radiation is out of thermal equilibrium at the breakout, during the planar phase (i.e., before the expanding gas doubles its radius), and during the early spherical phase. Therefore, during these phases we predict significantly higher temperatures than previous analysis that assumed equilibrium. When thermal equilibrium prevails, we find the location of the thermalization depth and its temporal evolution. Our results are useful for interpretation of early SN light curves. Some examples are (1) red supergiant SNe have an early bright peak in optical and UV flux, less than an hour after breakout. It is followed by a minimum at the end of the planar phase (about 10 hr), before it peaks again once the temperature drops to the observed frequency range. In contrast, WRs show only the latter peak in optical and UV. (2) Bright X-ray flares are expected from all core-collapse SNe types. (3) The light curve and spectrum of the initial breakout pulse hold information on the explosion geometry and progenitor wind opacity. Its spectrum in more compact progenitors shows a (nonthermal) power law and its light curve may reveal both the breakout diffusion time and the progenitor radius.

Nakar, Ehud [Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978 (Israel); Sari, Re'em [Racah Institute for Physics, Hebrew University, Jerusalem 91904 (Israel)

2010-12-10T23:59:59.000Z

222

Motor Systems Efficiency Supply Curves | Open Energy Information  

Open Energy Info (EERE)

Motor Systems Efficiency Supply Curves Motor Systems Efficiency Supply Curves Jump to: navigation, search Tool Summary Name: Motor Systems Efficiency Supply Curves Agency/Company /Organization: United Nations Industrial Development Organization Sector: Energy Focus Area: Energy Efficiency, Industry Topics: Technology characterizations Resource Type: Publications, Case studies/examples Website: www.unido.org/fileadmin/user_media/Services/Energy_and_Climate_Change/ Country: United States, Canada, Thailand, Vietnam, Brazil UN Region: South-Eastern Asia, "Latin America and Caribbean" 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., Northern America, "Western & Eastern Europe" 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.

223

Indonesia Greenhouse Gas Abatement Cost Curve | Open Energy Information  

Open Energy Info (EERE)

Indonesia Greenhouse Gas Abatement Cost Curve Indonesia Greenhouse Gas Abatement Cost Curve Jump to: navigation, search Tool Summary Name: Indonesia Greenhouse Gas Abatement Cost Curve Agency/Company /Organization: Government of Indonesia Topics: Baseline projection, GHG inventory, Co-benefits assessment, Background analysis Resource Type: Software/modeling tools Website: www.dnpi.go.id/report/DNPI-Media-Kit/reports/indonesia-ghg_abatement_c Country: Indonesia UN Region: South-Eastern Asia Coordinates: -0.789275°, 113.921327° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":-0.789275,"lon":113.921327,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

224

Status and Future of TRANSCOM  

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

Steve Casey Steve Casey U.S. Dept. of Energy Carlsbad Field Office ï‚¡ Current Program status g ï‚¡ Upcoming Changes ï‚¡ Glimpse at future options ï‚¡ DOE Commitments 2 6/3/2010 2 ï‚¡ Current Program status g * Computer Based Training * User Support Site * Program Support * Program Accomplishments U i Ch ï‚¡ Upcoming Changes ï‚¡ Glimpse at future options ï‚¡ DOE Commitments 3 ï‚¡ 1 st release - December 2009 9 ï‚¡ Covers general user training ï‚¡ Allows organizations access to training without waiting for a traditional class ï‚¡ Computer security module to be added Autumn 2010 Autumn 2010 ï‚¡ Shipper/Scheduler training - being considered 4 6/3/2010 3 ï‚¡ Completely overhauled in p y 2009 ï‚¡ Features are user friendly ï‚¡ Layout more intuitive

225

Brookhaven Physics: Into the Future  

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

Physics: Into the Future Physics: Into the Future To remain at the frontier of science, Brookhaven is continually evaluating its research programs and planning new or revised investigations in areas that the U.S. Department of Energy identifies as national science priorities and that make use of Brookhaven scientists' interests and strengths. STAR detector (L) and PHENIX detector After discovering quark-gluon plasma, physicists will proceed to measure details of its many intriguing characteristics and properties, and continue to investigate many other aspects of heavy ion physics and spin physics. To undertake these tasks, Brookhaven is planning to upgrade RHIC to RHIC-II by increasing the facility's luminosity, or collision rate, by a factor of ten, thereby increasing the rate of plasma production and the ability to

226

Issues and Future Research Directions  

E-Print Network (OSTI)

RFID technology is currently considered as a key enabler of supply chain transformation. However, very little has been written about the deployment and use of RFID in the dairy industry. Drawing on an extensive literature review and a case example, this exploratory study seeks to present current applications and issues related to RFID’s adoption in the dairy industry and discuss future research directions.

S. F. Wamba; Alison Wicks; Samuel Fosso Wamba, Ph.D.; Alison Wicks Ph. D

2010-01-01T23:59:59.000Z

227

Why Time is Future Oriented  

E-Print Network (OSTI)

We assume that the universe consists of clusters which in turns have sub-clusters and the sub-clusters have sub-subclusters and so on. Confining to three-dimensional space, it is shown that the universe is expanding if entropy of the universe increases. It is also shown that clocks slow down when time progresses towards future. Our model also justifies the big bang theory.

Shahid N. Afridi; M. Khalid Khan

2004-12-09T23:59:59.000Z

228

The future of nuclear power  

SciTech Connect

Present conditions and future prospects for the nuclear power industry in the United States are discussed. The presentation includes a review of trends in electrical production, the safety of coal as compared to nuclear generating plants, the dangers of radiation, the economics of nuclear power, the high cost of nuclear power in the United States, and the public fear of nuclear power. 20 refs. (DWL)

Zeile, H.J.

1987-01-01T23:59:59.000Z

229

Natural Gas Futures Prices (NYMEX)  

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

4.0 2.75 1997-2012 NGL Composite 12.91 15.20 8.99 11.83 15.12 10.98 2007-2012 Futures Prices Contract 1 7.114 8.899 4.159 4.382 4.03 2.83 1994-2012 Contract 2 7.359 9.014 4.428...

230

Natural Gas Futures Prices (NYMEX)  

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

13 View History Spot Price Henry Hub 3.69 3.55 3.47 3.62 3.68 3.87 1997-2013 Futures Prices Contract 1 3.64 3.56 3.50 3.60 3.66 3.87 1994-2013 Contract 2 3.76 3.65 3.57 3.65 3.71...

231

Natural Gas Futures Prices (NYMEX)  

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

3.62 3.43 3.62 3.68 1997-2013 NGL Composite 9.48 9.06 9.57 10.21 2009-2013 Futures Prices Contract 1 4.07 3.81 3.64 3.41 3.62 3.65 1994-2013 Contract 2 4.11 3.82 3.64 3.45 3.70...

232

Economic Growth in Urban Regions: Implications for Future Transportation  

E-Print Network (OSTI)

Implications for Future Transportation Robert Cervero,implications for future transportation policy. The collapseimplications for future transportation policy. Smart

Cervero, Robert

2006-01-01T23:59:59.000Z

233

Determination of the R-curve from the strength-indentation load relation  

SciTech Connect

Strength as a function of indentation load has been measured to evaluate toughness versus crack size curves (i.e., R-curves) of ceramics. In the past, this evaluation is achieved by generating a family of global stress intensity versus crack size curves (i.e., K-curves) at each indentation load and its corresponding strength, and then fitting an envelope of tangency points to these curves. This envelope yields the R-curve. A methodology is proposed in the present study to define the point in the K-curve at which the R-curve intersects. This methodology complements the conventional ``tangency condition`` approach in determining the R-curve from the experimental strength-indentation load relation.

Hsueh, C.H.; Becher, P.F. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Division

1995-08-01T23:59:59.000Z

234

Electric demand growth: An uncertain future for uranium  

SciTech Connect

Broadly conceived, the demand for electricity depends upon three sets of variables: (i) the growths of the many individual demands for energy services; (ii) the competitiveness of electrically driven technologies in meeting these demands; and (iii) the energy-conversion efficiencies of installed electrical technologies. The first set of variables establishes the size of the potential market; the second, the market penetration of electrical equipment; and the third, the quantity of electricity required to operate the equipment. All forecasts of electricity consumption ultimately depend upon inferred or assumed relationships to describe the future behavior of these variables. In this paper, the authors review recent forecasts of electricity demand growth. They also examine, in a qualitative way, some of the causes for the systematic, downward revisions of these forecasts over recent years. Graphical presentations of data are extensively used in the discussions. In an important sense, forecasting, whatever the number of variables, remains a matter of ''curve fitting.''

Asbury, J.G.

1985-01-01T23:59:59.000Z

235

Average Soil Water Retention Curves Measured by Neutron Radiography  

SciTech Connect

Water retention curves are essential for understanding the hydrologic behavior of partially-saturated porous media and modeling flow transport processes within the vadose zone. In this paper we report direct measurements of the main drying and wetting branches of the average water retention function obtained using 2-dimensional neutron radiography. Flint sand columns were saturated with water and then drained under quasi-equilibrium conditions using a hanging water column setup. Digital images (2048 x 2048 pixels) of the transmitted flux of neutrons were acquired at each imposed matric potential (~10-15 matric potential values per experiment) at the NCNR BT-2 neutron imaging beam line. Volumetric water contents were calculated on a pixel by pixel basis using Beer-Lambert s law after taking into account beam hardening and geometric corrections. To remove scattering effects at high water contents the volumetric water contents were normalized (to give relative saturations) by dividing the drying and wetting sequences of images by the images obtained at saturation and satiation, respectively. The resulting pixel values were then averaged and combined with information on the imposed basal matric potentials to give average water retention curves. The average relative saturations obtained by neutron radiography showed an approximate one-to-one relationship with the average values measured volumetrically using the hanging water column setup. There were no significant differences (at p < 0.05) between the parameters of the van Genuchten equation fitted to the average neutron radiography data and those estimated from replicated hanging water column data. Our results indicate that neutron imaging is a very effective tool for quantifying the average water retention curve.

Cheng, Chu-Lin [ORNL; Perfect, Edmund [University of Tennessee, Knoxville (UTK); Kang, Misun [ORNL; Voisin, Sophie [ORNL; Bilheux, Hassina Z [ORNL; Horita, Juske [Texas Tech University (TTU); Hussey, Dan [NIST Center for Neutron Research (NCRN), Gaithersburg, MD

2011-01-01T23:59:59.000Z

236

Residential equipment part load curves for use in DOE-2  

SciTech Connect

DOE-2 (DOE2 90) includes several correlation curves that predict the energy use of systems underpart load conditions. DOE-2 simulates systems on an hour-by-hour basis, so the correlations are intended to predict part load energy use (and efficiency) as a function of the part load ratio (PLR) for each hour, where PLR = Hourly Load/Available Capacity. Generally residential and small commercial HVAC equipment meets the load at off-design conditions by cycling on and off. Therefore, the part load correlations must predict the degradation due to this on and off operation over an hourly interval.

Henderson, Hugh; Huang, Y.J.; Parker, D.

1999-02-01T23:59:59.000Z

237

Moisture Retention Curves of Topopah Spring Tuff at Elevated Temperatures  

SciTech Connect

Knowledge of unsaturated flow and transport in porous media is critical for understanding the movement of water and solute through the unsaturated zone. The suction potential of rock determines the imbibition of water and, therefore, the moisture retention in the matrix. That, in turn, affects the relative importance of matrix flow and fracture flow, and their interaction, because greater suction potential moves more water from fractures into the matrix and therefore retards fracture flow. The moisture content as a function of the suction potential is called a moisture retention curve or a characteristic curve. Moisture-retention data are important input for numerical models of water movement in unsaturated porous media. Also important are the effect of sample history on the moisture-retention curves and whether there is significant hysteresis between wetting and drying measurements. The Yucca Mountain Site Characterization Project (YMP) of the U.S. Department of Energy is studying the suitability of the tuffaceous rock at Yucca Mountain, Nevada, for a potential high-level nuclear waste repository. The potential repository horizon will be in the unsaturated zone of the Topopah Spring member (densely welded) of the Paintbrush Tuff unit at Yucca Mountain. This unit is highly fractured. Therefore, transport of water within the near field of the nuclear waste package in the repository is strongly influenced by the suction potential of the repository host rocks at elevated temperatures. In a high-level nuclear waste repository, the rock mass around the waste packages will become dry because of the thermal load of the waste but will then re-wet during the cool-down period as the thermal output of the waste packages declines. Much of this process will occur at temperatures above ambient temperature. The goal of our work is to determine the importance of temperature and the wetting-drying hysteresis on the measured moisture retention curves of the densely welded tuff. For Topopah Spring tuff the suction potential is assumed to be primary due to the matric potential.

Lin, W.; Roberts, J.; Carlberg, E.; Ruddle, D.; Pletcher, R.

2001-11-30T23:59:59.000Z

238

Electricity Price Curve Modeling and Forecasting by Manifold Learning  

E-Print Network (OSTI)

This paper proposes a novel nonparametric approach for the modeling and analysis of electricity price curves by applying the manifold learning methodology—locally linear embedding (LLE). The prediction method based on manifold learning and reconstruction is employed to make short-term and mediumterm price forecasts. Our method not only performs accurately in forecasting one-day-ahead prices, but also has a great advantage in predicting one-week-ahead and one-month-ahead prices over other methods. The forecast accuracy is demonstrated by numerical results using historical price data taken from the Eastern U.S. electric power markets.

Jie Chen; Shi-Jie Deng; Xiaoming Huo

2008-01-01T23:59:59.000Z

239

Approximating RR Lyrae light curves using cubic polynomials  

E-Print Network (OSTI)

In this paper, we use cubic polynomials to approximate RR Lyrae light curves and apply the method to HST data of RR Lyraes in the halo of M31. We compare our method to the standard method of Fourier decomposition and find that the method of cubic polynomials eliminates virtually all ringing effects and does so with significantly fewer parameters than the Fourier technique. Further, for RRc stars the parameters in the fit are all physical. Our study also reveals a number of additional periodicites in this data not found previously: we find 23 RRc stars, 29 RRab stars and 3 multiperiodic stars.

Reyner, Steven; Ngeow, C; Morgan, C

2010-01-01T23:59:59.000Z

240

Information Geometry and Chaos on Negatively Curved Statistical Manifolds  

E-Print Network (OSTI)

A novel information-geometric approach to chaotic dynamics on curved statistical manifolds based on Entropic Dynamics (ED) is suggested. Furthermore, an information-geometric analogue of the Zurek-Paz quantum chaos criterion is proposed. It is shown that the hyperbolicity of a non-maximally symmetric 6N-dimensional statistical manifold M_{s} underlying an ED Gaussian model describing an arbitrary system of 3N non-interacting degrees of freedom leads to linear information-geometric entropy growth and to exponential divergence of the Jacobi vector field intensity, quantum and classical features of chaos respectively.

Carlo Cafaro

2008-10-25T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

FPGA curved track fitter with very low resource usage  

SciTech Connect

Standard least-squares curved track fitting process is tailored for FPGA implementation. The coefficients in the fitting matrices are carefully chosen so that only shift and accumulation operations are used in the process. The divisions and full multiplications are eliminated. Comparison in an application example shows that the fitting errors of the low resource usage implementation are less than 4% bigger than the fitting errors of the exact least-squares algorithm. The implementation is suitable for low-cost, low-power applications such as high energy physics detector trigger systems.

Wu, Jin-Yuan; Wang, M.; Gottschalk, E.; Shi, Z.; /Fermilab

2006-11-01T23:59:59.000Z

242

Recapitalizing EMSL: Meeting Future Science  

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

Recapitalizing EMSL: Recapitalizing EMSL: Meeting Future Science and Technology Challenges Environmental Molecular Sciences Laboratory 2008 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor Battelle Memorial Institute, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not

243

Superconductivity: Past, present, and future  

DOE Green Energy (OSTI)

This paper provides an overview of superconductor research and development activities, with emphasis on the potential of high-{Tc} materials for future applications. Superconductor applications are grouped under the following categories: electronics/instrumentation, bulk material/castings, research devices, industrial/commercial, electric power, and transportation/propulsion. Near-term applications are typically based on thin film and cast forms of high-{Tc} materials, while large-scale applications requiring long lengths of wire are considered intermediate to long term. As a major side benefit of high-{Tc} superconductor research, renewed interest is being focused on the use of low-{Tc} materials for large-scale applications.

Uherka, K.L.

1992-01-01T23:59:59.000Z

244

Superconductivity: Past, present, and future  

DOE Green Energy (OSTI)

This paper provides an overview of superconductor research and development activities, with emphasis on the potential of high-{Tc} materials for future applications. Superconductor applications are grouped under the following categories: electronics/instrumentation, bulk material/castings, research devices, industrial/commercial, electric power, and transportation/propulsion. Near-term applications are typically based on thin film and cast forms of high-{Tc} materials, while large-scale applications requiring long lengths of wire are considered intermediate to long term. As a major side benefit of high-{Tc} superconductor research, renewed interest is being focused on the use of low-{Tc} materials for large-scale applications.

Uherka, K.L.

1992-06-01T23:59:59.000Z

245

Toward an acceptable nuclear future  

SciTech Connect

The nuclear option is in danger of being foreclosed. The trend toward antinuclearism may be reversed if concerns about low-level radiation insult can be shown ultimately to be without foundation; evidence for this speculation is presented. Nevertheless it is suggested that the nuclear enterprise itself must propose new initiatives to increase the acceptability of nuclear energy. A key element of an acceptable nuclear future is cluster siting of reactors. This siting plan might be achieved by confining new reactors essentially to existing sites.

Weinberg, A.M.

1977-11-01T23:59:59.000Z

246

Building a Sustainable Energy Future  

E-Print Network (OSTI)

Board provides oversight for, and establishes the policies of, NSF within the framework of applicable national policies set forth by the President and the Congress. In this capacity, the Board identifies issues that are critical to NSF’s future, approves NSF’s strategic budget directions, approves annual budget submissions to the Office of Management and Budget, approves new programs and major awards, analyzes NSF’s budget to ensure progress and consistency along the strategic direction set for NSF, and ensures balance between initiatives and core programs. The Board also serves as an independent policy advisory body to the President

Barry C. Barish; Maxine Linde; Professor Physics; Emeritus Director; Camilla P. Benbow; Rodes Hart; Dean Education; Human Development

2009-01-01T23:59:59.000Z

247

Version: 90521 USING THE CUMULATIVE AVAILABIITY CURVE TO ASSESS  

E-Print Network (OSTI)

supply constrain energy technologies? Science, March 12, v. 191, p. 1037-1038. Industrial Minerals, 1999 of petroleum and other energy resources, the substitution of cheaper alternatives, including solar and other of what remains for society to consume.5 Estimates of future consumption are 5 Reserves indicate

248

Toward an energy surety future.  

SciTech Connect

Because of the inevitable depletion of fossil fuels and the corresponding release of carbon to the environment, the global energy future is complex. Some of the consequences may be politically and economically disruptive, and expensive to remedy. For the next several centuries, fuel requirements will increase with population, land use, and ecosystem degradation. Current or projected levels of aggregated energy resource use will not sustain civilization as we know it beyond a few more generations. At the same time, issues of energy security, reliability, sustainability, recoverability, and safety need attention. We supply a top-down, qualitative model--the surety model--to balance expenditures of limited resources to assure success while at the same time avoiding catastrophic failure. Looking at U.S. energy challenges from a surety perspective offers new insights on possible strategies for developing solutions to challenges. The energy surety model with its focus on the attributes of security and sustainability could be extrapolated into a global energy system using a more comprehensive energy surety model than that used here. In fact, the success of the energy surety strategy ultimately requires a more global perspective. We use a 200 year time frame for sustainability because extending farther into the future would almost certainly miss the advent and perfection of new technologies or changing needs of society.

Tatro, Marjorie L.; Jones, Scott A.; Covan, John Morgan; Kuswa, Glenn W.; Menicucci, David F.; Robinett, Rush D. III (.; )

2005-10-01T23:59:59.000Z

249

Coal: Energy for the future  

SciTech Connect

This report was prepared in response to a request by the US Department of energy (DOE). The principal objectives of the study were to assess the current DOE coal program vis-a-vis the provisions of the Energy Policy Act of 1992 (EPACT), and to recommend the emphasis and priorities that DOE should consider in updating its strategic plan for coal. A strategic plan for research, development, demonstration, and commercialization (RDD and C) activities for coal should be based on assumptions regarding the future supply and price of competing energy sources, the demand for products manufactured from these sources, technological opportunities, and the need to control the environmental impact of waste streams. These factors change with time. Accordingly, the committee generated strategic planning scenarios for three time periods: near-term, 1995--2005; mid-term, 2006--2020; and, long-term, 2021--2040. The report is divided into the following chapters: executive summary; introduction and scope of the study; overview of US DOE programs and planning; trends and issues for future coal use; the strategic planning framework; coal preparation, coal liquid mixtures, and coal bed methane recovery; clean fuels and specialty products from coal; electric power generation; technology demonstration and commercialization; advanced research programs; conclusions and recommendations; appendices; and glossary. 174 refs.

1995-05-01T23:59:59.000Z

250

Engineering Education - A Future Management Of The Future  

E-Print Network (OSTI)

Processes and structures of current engineering praxis, as well as those of the present university engineering education, are closely related to progress and stasis of modern nation state, and modernity as such. In the current post-modern knowledge society, the engineering education needs to redefine its priorities and find a new footing. In the knowledge society, the higher education has become of supreme importance for the functioning of its structures rooted in learning. Structural rigidity of higher education based on the authority and financial resources of the nation state in stasis does not correspond to dynamics of present culture development. Institutions of higher education need to be de-nationalised, as they need freedom for employment of their resources in an effort to reach goals set by regional and global standards. Contemporary societies are characterised by self generated structures and the capacity to determine their own future. Knowledge is a fundamental organisational principle of the way we live. Generation, reproduction, distribution, and realisation of knowledge, i.e. education, represent corner stones of contemporary social order. This has been especially apparent since the violence and intimidation of the 11 September 2001 in the United States. An access to education per se does not guarantee that the education will be accomplished. Education is primarily a cultural phenomenon. The post-modern engineering education should aim at teaching a flexible, target oriented, and responsible individual who is able to distinguish in the chaos of data generated by the Net. Future oriented engineering education means not only the development of rational thinking, logical analysis, and action directed conclusion making but also facilitating of unders...

Borek Sousedik

2002-01-01T23:59:59.000Z

251

2008. Approximating learning curves for active-learning-driven annotation  

E-Print Network (OSTI)

Active learning (AL) is getting more and more popular as a methodology to considerably reduce the annotation effort when building training material for statistical learning methods for various NLP tasks. A crucial issue rarely addressed, however, is when to actually stop the annotation process to profit from the savings in efforts. This question is tightly related to estimating the classifier performance after a certain amount of data has already been annotated. While learning curves are the default means to monitor the progress of the annotation process in terms of classifier performance, this requires a labeled gold standard which – in realistic annotation settings, at least – is often unavailable. We here propose a method for committee-based AL to approximate the progression of the learning curve based on the disagreement among the committee members. This method relies on a separate, unlabeled corpus and is thus well suited for situations where a labeled gold standard is not available or would be too expensive to obtain. Considering named entity recognition as a test case we provide empirical evidence that this approach works well under simulation as well as under real-world annotation conditions. 1.

Katrin Tomanek; Udo Hahn

2008-01-01T23:59:59.000Z

252

Controlling adsorption of semiflexible polymers on planar and curved substrates  

E-Print Network (OSTI)

We study the adsorption of semiflexible polymers such as polyelectrolytes or DNA on planar and curved substrates, e.g., spheres or washboard substrates via short-range potentials using extensive Monte-Carlo simulations, scaling arguments, and analytical transfer matrix techniques. We show that the adsorption threshold of stiff or semiflexible polymers on a planar substrate can be controlled by polymer stiffness: adsorption requires the highest potential strength if the persistence length of the polymer matches the range of the adsorption potential. On curved substrates, i.e., an adsorbing sphere or an adsorbing washboard surface, the adsorption can be additionally controlled by the curvature of the surface structure. The additional bending energy in the adsorbed state leads to an increase of the critical adsorption strength, which depends on the curvature radii of the substrate structure. For an adsorbing sphere, this gives rise to an optimal polymer stiffness for adsorption, i.e., a local minimum in the critical potential strength for adsorption, which can be controlled by curvature. For two- and three-dimensional washboard substrates, we identify the range of persistence lengths and the mechanisms for an effective control of the adsorption threshold by the substrate curvature.

Tobias A. Kampmann; Horst-Holger Boltz; Jan Kierfeld

2013-06-20T23:59:59.000Z

253

Unification of methods for determining distillation curve of oils  

Science Conference Proceedings (OSTI)

For the determination of the distillation curve of oils, various types of flask are recommended by industry-branch standards (OST) and specifications (TU). For example, TU 6-02-1072-86 for PEF fluid and TU 6-02-921-74 for the chlorofluorocarbon oil UF specify a Claisen flask (GOST 25336-82); the standard OST 38.01402-86 for mineral-base vacuum oils specifies a specially designed flask; TU 6-01-26-54-85 for Alkarene type vacuum oils specifies a Bogdanov flask. The latter two flasks are not included in any State (GOST) standards for chemical laboratory ware and hence are not in regular production. The accuracy in determining the distillation curve depends on the separating ability of the flask. Flasks designed as shown do not allow return of part of the condensate to the still section, so that it is impossible to regulate the reflux rate and hence impossible to obtain any reliable data on the fractional composition of the product and the distillation temperature. The Claisen and Bogdanov flasks, which have a developed surface, are more suitable for fractionation of oils.

Khitrik, A.A.; Vagapova, N.Kh.; Shagiakhmetov, R.A.

1994-09-01T23:59:59.000Z

254

Noncommercial Trading in the Energy Futures Market  

Reports and Publications (EIA)

How do futures markets affect spot market prices? This is one of the most pervasive questions surrounding futures markets, and it has been analyzed in numerous ways for many commodities.

Information Center

1996-05-01T23:59:59.000Z

255

Transportation Energy Futures Series: Alternative Fuel Infrastructure...  

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

Production Capacity, and Retail Availability for Low-Carbon Scenarios TRANSPORTATION ENERGY FUTURES SERIES: Alternative Fuel Infrastructure Expansion: Costs, Resources,...

256

Extremum seeking control techniques applied to photovoltaic systems with multimodal power curves  

E-Print Network (OSTI)

) Current(A) 0 200 320025 I-V curve P-V curve VMPP Power(W) 1000 Fig. 1. Photovoltaic cell I-V and P generator method, open-circuit voltage photovoltaic cell test method, incremental conductance method (CI) [5Extremum seeking control techniques applied to photovoltaic systems with multimodal power curves

Recanati, Catherine

257

REMARKS ON THE PARABOLIC CURVES ON SURFACES AND ON THE MANYDIMENSIONAL M  

E-Print Network (OSTI)

REMARKS ON THE PARABOLIC CURVES ON SURFACES AND ON THE MANY­DIMENSIONAL M ¨ OBIUS--STURM THEORY V. I. Arnold V. A. Steklov Mathematical Institute August 26, 1997 Conjecture on Four Parabolic Curves of several variables) show that natural analogs of inflection points are parabolic curves of surfaces

Arnold, Vladimir Igorevich

258

Some new results on non-rigid correspondence and classification of curves  

Science Conference Proceedings (OSTI)

We present two new algorithms for correspondence and classification of planar curves in a non-rigid sense. In the first algorithm we define deforming energy based on aligning curves using certain of their properties, namely Multi-Step-Size Local Similarity ... Keywords: correspondence, curve alignment, dynamic programming, recognition

Xiqiang Zheng; Yunmei Chen; David Groisser; David Wilson

2005-11-01T23:59:59.000Z

259

ENERGY WHITE PAPER Our energy future -  

E-Print Network (OSTI)

ENERGY WHITE PAPER Our energy future - creating a low carbon economy and consumers. And we stand up for fair and open markets in the UK, Europe and the world. #12;Our energy future ENERGY WHITE PAPER Our energy future - creating a low carbon economy 1 Foreword

260

Millisecond dips in the RXTE/PCA light curve of Sco X-1 and TNO occultation  

E-Print Network (OSTI)

Millisecond dips in the RXTE/PCA light curve of Sco X-1 were reported recently (Chang et al. 2006), which were interpreted as the occultation of X-rays from Sco X-1 caused by Trans-Neptunian Objects (TNO) of hundred-meter size. Inconclusive signatures of possible instrumental effects in many of these dip events related to high-energy cosmic rays were later found (Jones et al. 2006) and the TNO interpretation became shaky. Here we report more detailed analysis aiming at distinguishing true occultation events from those related to cosmic rays. Based on some indicative criteria derived from housekeeping data and two-channel spectral information, we suggest that about 10% of the dips are probable events of occultation. The total number of TNOs of size from 60 m to 100 m is estiamted to be about 10^{15} accordingly. Limited by the coarser time resolution of standard data modes of RXTE/PCA, however, definite results cannot be obtained. Adequately configured observations with RXTE or other new instruments in the future are very much desired.

Hsiang-Kuang Chang; Jau-Shian Liang; Chih-Yuan Liu; Sun-Kun King

2007-01-30T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Wind Plant Cost of Energy: Past and Future (Presentation)  

SciTech Connect

This presentation examines trends in wind plant cost of energy over the last several decades and discusses methods and examples of projections for future cost trends. First, the presentation explores cost trends for wind energy from the 1980s, where there had been an overall downward trend in wind plant energy costs. Underlying factors that influenced these trends, including turbine technology innovation for lower wind speed sites, are explored. Next, the presentation looks at projections for the future development of wind energy costs and discusses a variety of methods for establishing these projections including the use of learning curves, qualitative assessment using expert elicitation, and engineering-based analysis. A comparison of the methods is provided to explore their relative merits. Finally, a brief introduction is provided for the U.S. Department of Energy program-wide shift towards an integrative use of qualitative and quantitative methods for assessing the potential impacts of wind plant technology innovations on reducing the wind plant cost of energy.

Hand, M.

2013-03-01T23:59:59.000Z

262

FutureGen_factsheet.cdr  

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

Vision Vision for Tomorrow's Clean Energy FutureGen - A Sequestration and Hydrogen Research Initiative Responding to the President's Initiatives The Technology The Integrated Sequestration and Hydrogen Research Initiative is a $1 billion government/ industry partnership to design, build and operate a nearly emission-free, coal-fired electric and hydrogen production plant. The 275-megawatt prototype plant will serve as a large scale engineering laboratory for testing new clean power, carbon capture, and coal-to-hydrogen technologies. It will be the cleanest fossil fuel-fired power plant in the world. The project is a direct response to the President's Climate Change and Hydrogen Fuels Initiatives. President Bush emphasized the importance of technology in stabilizing greenhouse gas concentrations in the atmosphere with two major policy announcements: the National Climate

263

Catalyzing a cleaner Energy Future  

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

11 11 Catalyzing a Cleaner Energy Future When asked about catalysts, most people probably remember a simple definition copied from the chalkboard in an early chemistry class: a substance that accelerates or modifies a chemical reaction without itself being affected. Or certain personalities may spring to mind; the term is routinely borrowed from chemistry to refer, in social and professional contexts, to a person or team whose energetic, efficient work quickly creates change in a given field. Or the first thought may be of the car in one's driveway and its catalytic converter, which chemically grabs some of the worst pollutants from exhaust and makes them harmless before they reach the tailpipe. In a way, continuing work by scientists at the Environmental Molecular

264

CURRENT AND FUTURE IGCC TECHNOLOGIES:  

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

16, 2008 16, 2008 DOE/NETL-2008/1337 A Pathway Study Focused on Non-Carbon Capture Advanced Power Systems R&D Using Bituminous Coal - Volume 1 Current and Future IGCC Technologies Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or

265

Future Heating | Open Energy Information  

Open Energy Info (EERE)

Heating Heating Jump to: navigation, search Name Future Heating Place London, England, United Kingdom Sector Solar Product Designs and installs solar passive water heating systems. Coordinates 51.506325°, -0.127144° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.506325,"lon":-0.127144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

266

Photon Green Functions in Curved Space-Time  

E-Print Network (OSTI)

Quantization of electrodynamics in curved space-time in the Lorenz gauge and with arbitrary gauge parameter makes it necessary to study Green functions of non-minimal operators with variable coefficients. Starting from the integral representation of photon Green functions, we link them to the evaluation of integrals involving Gamma-functions. Eventually, the full asymptotic expansion of the Feynman photon Green function at small values of the world function, as well as its explicit dependence on the gauge parameter, are obtained without adding by hand a mass term to the Faddeev-Popov Lagrangian. Coincidence limits of second covariant derivatives of the associated Hadamard function are also evaluated, as a first step towards the energy-momentum tensor in the non-minimal case.

Giuseppe Bimonte; Enrico Calloni; Luciano Di Fiore; Giampiero Esposito; Leopoldo Milano; Luigi Rosa

2005-11-23T23:59:59.000Z

267

Equilibrium spherically curved 2D Lennard-Jones systems  

E-Print Network (OSTI)

To learn about basic aspects of nano-scale spherical molecular shells during their formation, spherically curved two-dimensional N-particle Lennard-Jones systems are simulated, studying curvature evolution paths at zero-temperature. For many N-values (N<800) equilibrium configurations are traced as a function of the curvature radius R. Sharp jumps for tiny changes in R between trajectories with major differences in topological structure correspond to avalanche-like transitions. For a typical case, N=25, equilibrium configurations fall on smooth trajectories in state space which can be traced in the E-R plane. The trajectories show-up with local energy minima, from which growth in N at steady curvature can develop.

J. M. Voogd; P. M. A. Sloot; R. van Dantzig

2005-07-06T23:59:59.000Z

268

Renewable Electricity Futures Study. Executive Summary  

Science Conference Proceedings (OSTI)

The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

Mai, T.; Sandor, D.; Wiser, R.; Schneider, T.

2012-12-01T23:59:59.000Z

269

Economics and regulation of petroleum futures markets  

SciTech Connect

Because the futures market in petroleum products is a relatively recent phenomenon, the implications of public policies formulated for that market have not yet been fully explored. To provide the Office of Competition of the Department of Energy (DOE) with sufficient information to assess policy alternatives, Resource Planning Associates, Inc. (RPA) was asked to analyze the development of the futures market in No. 2 oil, assess the potential for futures markets in other petroleum products, and identify policy alternatives available to DOE. To perform this analysis, the criteria for a viable futures market was established first. Then, the experience to date with the 18-month-old futures market in No. 2 oil was examined, and the potential for viable futures markets in No. 6 oil, gasoline, jet fuel, and crude oil was assessed. Finally, how existing DOE regulations and prospective actions might affect petroleum futures market development was investigated.

Not Available

1980-08-01T23:59:59.000Z

270

Future Prospects of Synthetic Fuels  

E-Print Network (OSTI)

It is important for the future of this nation to reach the goal of demonstrated definition and quantification of the parameters which influence the ability to use this country's vast resources of coal and oil shale for production of synthetic fuels which can contribute to the nation's future energy needs. Those parameters are: technical, environmental, and economic viability. In the final analysis, the key word is economics; can, or when can synthetic fuels compete in the marketplace? A commercial synthetic fuels plant requires a multi-billion dollar capital investment. It is the purpose of this paper to discuss the risk elements of a synthetic fuels venture and to speculate on what impact the current environment, e.g. governmental policy, world crude market prices, and general economic climate may have on the timetable for achievement of the aforementioned goal. In June 1980 the author presented a paper at the AIChE Meeting in Philadelphia, Pa. entitled 'Synthetic Fuels - Their Problems and Their Promises.' The opening paragraph of that paper started as follows: 'For three decades, since the days of World War II, a U.S. synthetic fuels industry has several times verged on becoming a reality but never succeeding, the ups and downs resembling a sine wave of variable frequency. As of this writing we are at the crest of the wave. Is this the time it will happen? For the good of the nation hopefully the answer will be yes.' It is the purpose of this paper, some 20 months later, to examine what has transpired in that time interval and to speculate, in the light of those events, about their impact on the likelihood of the answer still being 'yes' and on the timing as to when it may occur. To set the stage for consideration of the importance of recent events and to put them in perspective, it is necessary to return again to the earlier paper where some of the impediments to the establishment of a U.S. synfuels industry were discussed. In essence what was said was that the principal impediments were: economic, environmental, and regulatory, and since both the economic and regulatory aspects exert some direct and/or indirect influence on cost, the problem really reduced to the single most important factor--project economics. Synthetic fuels simply are expensive to produce!

Fryback, M. G.

1982-01-01T23:59:59.000Z

271

Vehicle Manufacturing Futures in Transportation Life-cycle Assessment  

E-Print Network (OSTI)

GHG emissions of future transportation modes. These resultsVehicle Manufacturing Futures in Transportation Life-cycleVehicle Manufacturing Futures in Transportation Life-cycle

Chester, Mikhail; Horvath, Arpad

2011-01-01T23:59:59.000Z

272

California’s Energy Future: Transportation Energy Use in California  

E-Print Network (OSTI)

California’s Energy Future - Transportation Energy Use inCalifornia’s Energy Future - Transportation Energy Use inCalifornia’s Energy Future - Transportation Energy Use in

Yang, Christopher; Ogden, Joan M; Hwang, Roland; Sperling, Daniel

2011-01-01T23:59:59.000Z

273

Is Methanol the Transportation Fuel of the Future?  

E-Print Network (OSTI)

A Comparative Analysis of Future Transportation Fuels," UCB-Press plc THE TRANSPORTATION FUTURE? FUEL OF THE DANIELPurdue University, "Transportation Energy Futures; Paths of

Sperling, Daniel; DeLuchi, Mark A.

1989-01-01T23:59:59.000Z

274

Moving Towards a More Secure Energy Future  

Nuclear Energy Wind Solar Energy Clean Coal BES related basic research activities. The President’s Advanced Energy Initiative Accelerating Future ...

275

Time Series Prediction Forecasting the Future and ...  

Science Conference Proceedings (OSTI)

Time Series Prediction Forecasting the Future and Understanding the Past Santa Fe Institute Proceedings on the Studies in the Sciences of ...

2012-10-01T23:59:59.000Z

276

The Future of Biofuels | Department of Energy  

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

Pledge? Conversation on the Future of the Wind Industry Science Lecture: Talking the Higgs Boson with Dr. Joseph Incandela Bill Gates and Deputy Secretary Poneman Discuss the...

277

Probing Higgs Boson Interactions At Future Colliders.  

E-Print Network (OSTI)

??We present in this thesis a detailed analysis of Higgs boson interactions at future colliders. In particular we examine, in a model independent way, the… (more)

Biswal, Sudhansu Sekhar

2009-01-01T23:59:59.000Z

278

Advanced Materials for Our Energy Future - TMS  

Science Conference Proceedings (OSTI)

May 21, 2010 ... TMS has joined forces with four other materials societies to develop “Advanced Materials for Our Energy Future,” a publication that underscores ...

279

Future Energy Pty Ltd | Open Energy Information  

Open Energy Info (EERE)

Energy Pty Ltd Jump to: navigation, search Name Future Energy Pty Ltd Place Victoria, Australia Zip 3121 Sector Wind energy Product Victoria based community wind project developer....

280

Fueling the Future with Fungal Genomics  

E-Print Network (OSTI)

Saccharomyces cerevisiae. Biofuels. 108:147-177. Harman GE,or future hydrocarbon biofuels, fungi are involved. Researchtopic areas that impact biofuels production. In this review,

Grigoriev, Igor V.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

The Future of Food in Suburbia.  

E-Print Network (OSTI)

??This thesis addresses resilience for the future of Canadian suburbs, through the lens of buildings and food, particularly against the backdrop of peak oil and… (more)

Khalid, Sarah

2012-01-01T23:59:59.000Z

282

Is nanoelectronics the future of microelectronics?  

Science Conference Proceedings (OSTI)

We examine current research in nanoelectronics and discuss the role it may play in future electronic systems. Keywords: Moore's Law, molecular electronics, nanoelectronics

Mark Lundstrom

2002-08-01T23:59:59.000Z

283

The R-curve response of ceramics with microscopic reinforcements: Reinforcement and additive effects  

SciTech Connect

Using direct observations with the scanning electron and optical microscopes, simultaneous measurements of fracture resistance versus crack length (R-curve behavior) and crack interactions with microstructural features at the crack tip and in its wake were made. Selecting whisker-reinforced aluminas and self-reinforced silicon nitrides, one can examine the effects of systematic modifications of microstructure and composition on the R-curve response and the mechanisms giving rise to it. Specifically, increases in whisker content and size can increase the R-Curve response, even for short crack lengths. In the self-reinforced silicon nitrides, changes in alumina: yttria additive ratios also modify the R-curve. Modeling of the R-curve response allows one to verify toughening mechanisms and, with experimental studies, to optimize the R-curve behavior in ceramics containing microscopic reinforcements, e.g., whiskers and elongated grain structures.

Becher, P.F.; Sun, E.Y.; Plucknett, K,P.; Hsueh, C.H.

1996-05-01T23:59:59.000Z

284

R-curve response of silicon carbide whisker-reinforced alumina: Microstructural influence  

SciTech Connect

Rising fracture resistance with crack extension (R-curve response) can lead to improvements in the mechanical reliability of ceramics. To understand how microstructures influence the R-curve behavior, direct observations of crack interactions with microstructural features were conducted on SiC whisker-reinforced alumina. The contribution of the dominant toughening mechanisms to the R-curve behavior of these composites is discussed using experimental and theoretical studies.

Sun, E.Y.; Hsueh, C.H.; Becher, P.F.

1995-12-31T23:59:59.000Z

285

ChronoSeeker: Future Opinion Extraction  

Science Conference Proceedings (OSTI)

In this paper, we will propose a novel technique for Future Opinion Extraction, a new task of Information Extraction. The system we built can extract automatically future opinions, building automatic queries for the Search API. We obtained an F-Measure ... Keywords: Data Mining, Information Extraction, Machine Learning

Pierre Brun; Hideki Kawai; Kazuo Kunieda; Keiji Yamada

2009-09-01T23:59:59.000Z

286

Edmund G. Brown Jr. LIGHTING CALIFORNIA'S FUTURE  

E-Print Network (OSTI)

Edmund G. Brown Jr. Governor LIGHTING CALIFORNIA'S FUTURE: SMART LIGHT-EMITTING DIODE LIGHTING's Future: Smart LightEmitting Diode Lighting in Residential Fans. California Energy Commission, PIER. For the Smart Light emitting Diode Lighting in Residential Fans Project, the California Lighting Technology

287

Future Contracts and Options Commodity markets  

E-Print Network (OSTI)

the concurrent use of both cash and futures markets · Consider the case of a flour mill which has made heavy forward sales of flour, that requires more uncommitted wheat that the mill owns. ­ to hedge these flour sales, the mill needs to secure more wheat contracts in future when there is enough resources from

Boisvert, Jeff

288

A Once and Future Gulf of Mexico  

E-Print Network (OSTI)

A Once and Future Gulf of Mexico Ecosystem Restoration Recommendations of an Expert Working Group. Washington, DC. 112 pp. #12;A Once and Future Gulf of Mexico Ecosystem Restoration Recommendations Introduction 9 Precedents and Principles for Restoring the Gulf of Mexico Ecosystem 15 Acute and Chronic

Florida, University of

289

A Once and Future Gulf of Mexico  

E-Print Network (OSTI)

A Once and Future Gulf of Mexico Ecosystem Restoration Recommendations of an Expert Working Group, Stanley Senner, John M. Teal and Ping Wang #12;1 A Once and Future Gulf of Mexico Ecosystem, Executive deep-sea and shoreline habitats and closing economically valuable fisheries in the Gulf of Mexico

Osenberg, Craig W.

290

Conservation screening curves to compare efficiency investments to power plants: Applications to commercial sector conservation programs  

E-Print Network (OSTI)

and Ashok K. Gadgil. 1989. Conservation Screening Curves forof Utility Experience with Conservation and Load ManagementSupport Document: Energy Conservation Standards for Consumer

Koomey, Jonathan; Rosenfeld, Arthur H.; Gadgil, Ashok J.

2008-01-01T23:59:59.000Z

291

Stabilizing control of parallel AC-DC power transmission systems by approximate switching curve  

SciTech Connect

A method to improve the transient stability of bulk power transmission system is presented. The method stabilizes the control of parallel ac-dc transmission systems using an approximate switching curve. The optimal switching curve is approximated by a power series and the resulting switching curve is determined independent of type and duration of faults that occur to the system. In addition, coefficients of the switching curve can be calculated on a off-line basis which allows use of simple on-line algebraic calculations in emergency conditions.

Ichiyanagi, K.; Kobayashi, H.; Kakehu, H.

1980-01-01T23:59:59.000Z

292

Parametric System Curves: Correlations Between Fan Pressure Rise and Flow for Large Commercial Buildings  

E-Print Network (OSTI)

distribution, duct design, system curve, fans, leakage iiifan pressure rise and flow measurements over a range of operating conditions. During design,

Sherman, Max

2010-01-01T23:59:59.000Z

293

A centurial history of technological change and learning curves or pulverized coal-fired utility boilers  

E-Print Network (OSTI)

OECD. Experience curves for energy technology policy. Paris,generation. National Energy Technology Laboratory, U.S. DOE;CO. Assessing new energy technologies using an energy system

Yeh, Sonia; Rubin, Edward

2007-01-01T23:59:59.000Z

294

Learning curves for environmental technology and their importance for climate policy analysis  

E-Print Network (OSTI)

DG. Dynamics of energy technologies and global change.CO. Experience curves for energy technology policy. Paris,o f technologies, including energy technologies [3-7]. Cost

Rubin, Edward S.; Taylor, Margaret R; Yeh, Sonia; Hounshell, David A.

2007-01-01T23:59:59.000Z

295

Economic growth and transition : econometric analysis of Lim's S-curve hypothesis.  

E-Print Network (OSTI)

??Professor Lim Chong Yah's S-Curve hypothesis is a simple yet highly insightful theory. By augmenting the mathematical and econometrical sophistication of the hypothesis, this thesis… (more)

Sng, Hui Ying.

2008-01-01T23:59:59.000Z

296

Decline curve analysis in unconventional resource plays using logistic growth models.  

E-Print Network (OSTI)

??Current models used to forecast production in unconventional oil and gas formations are often not producing valid results. When traditional decline curve analysis models are… (more)

Clark, Aaron James

2011-01-01T23:59:59.000Z

297

21-PWR WASTE PACKAGE WITH ABSORBER PLATES LOADING CURVE EVALUATION  

Science Conference Proceedings (OSTI)

The objective of this calculation is to evaluate the required minimum burnup as a function of initial pressurized water reactor (PWR) assembly enrichment that would permit loading of spent nuclear fuel into the 21 PWR waste package with absorber plates design as provided in Attachment IV. This calculation is an example of the application of the methodology presented in the ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of enrichments from 0 through 5.0 weight percent U-235, and a burnup range of 0 through 45 GWd/MTU. Higher burnups were not necessary because 45 GWd/MTU was high enough for the loading curve determination. This activity supports the validation of the use of burnup credit for commercial spent nuclear fuel applications. The intended use of these results will be in establishing PWR waste package configuration loading specifications. Limitations of this evaluation are as follows: (1) The results are based on burnup credit for actinides and selected fission products as proposed in YMP (2003, Table 3-1) and referred to as the ''Principal Isotopes''. Any change to the isotope listing will have a direct impact on the results of this report. (2) The results are based on 1.5 wt% Gd in the Ni-Gd Alloy material and having no tuff inside the waste package. If the Gd loading is reduced or a process to introduce tuff inside the waste package is defined, then this report would need to be reevaluated based on the alternative materials. This calculation is subject to the ''Quality Assurance Requirements and Description'' (QARD) (DOE 2004) because it concerns engineered barriers that are included in the ''Q-List'' (BSC 2004k, Appendix A) as items important to safety and waste isolation.

J.M. Scaglione

2004-12-17T23:59:59.000Z

298

Renewable Energy Futures to 2050: Current Perspectives  

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

Renewable Energy Futures to 2050: Current Perspectives Renewable Energy Futures to 2050: Current Perspectives Speaker(s): Eric Martinot Date: April 4, 2013 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Ryan Wiser The future of renewable energy is fundamentally a choice, not a foregone conclusion given technology and economic trends. The new REN21 Renewables Global Futures Report illuminates that choice by showing the range of credible possibilities for the future of renewable energy. The report is not one scenario or viewpoint, but a synthesis of the contemporary thinking of many, as compiled from 170 interviews with leading experts from around the world, including CEOs and parliamentarians, and from 50 recently published energy scenarios by a range of organizations. Conservative projections show 15-20% global energy shares from renewables in the

299

Stephen Potter: Exploring rail futures using scenarios EXPLORING RAIL FUTURES USING SCENARIOS: EXPERIENCE AND POTENTIAL  

E-Print Network (OSTI)

and other research outputs Exploring rail futures using scenarios: experience and potential Conference Item How to cite:

Stephen Potter

2007-01-01T23:59:59.000Z

300

National Renewable Energy Laboratory Innovation for Our Energy Future NREL's Campus of the Future  

E-Print Network (OSTI)

benchmark awarded by the U.S. Green Building Council · Expected completion: Summer 2010 #12;NationalNational Renewable Energy Laboratory Innovation for Our Energy Future NREL's Campus of the Future research objectives for clean energy technologies · Creating a sustainable energy future for not only our

Note: This page contains sample records for the topic "wti futures curve" 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

Forecasting future volatility from option prices, Working  

E-Print Network (OSTI)

Weisbach are gratefully acknowledged. I bear full responsibility for all remaining errors. Forecasting Future Volatility from Option Prices Evidence exists that option prices produce biased forecasts of future volatility across a wide variety of options markets. This paper presents two main results. First, approximately half of the forecasting bias in the S&P 500 index (SPX) options market is eliminated by constructing measures of realized volatility from five minute observations on SPX futures rather than from daily closing SPX levels. Second, much of the remaining forecasting bias is eliminated by employing an option pricing model that permits a non-zero market price of volatility risk. It is widely believed that option prices provide the best forecasts of the future volatility of the assets which underlie them. One reason for this belief is that option prices have the ability to impound all publicly available information – including all information contained in the history of past prices – about the future volatility of the underlying assets. A second related reason is that option pricing theory maintains that if an option prices fails to embody optimal forecasts of the future volatility of the underlying asset, a profitable trading strategy should be available whose implementation would push the option price to the level that reflects the best possible forecast of future volatility.

Allen M. Poteshman

2000-01-01T23:59:59.000Z

302

Comparison of Emperical Decline Curve Analysis for Shale Wells  

E-Print Network (OSTI)

This study compares four recently developed decline curve methods and the traditional Arps or Fetkovich approach. The four methods which are empirically formulated for shale and tight gas wells are: 1. Power Law Exponential Decline (PLE). 2. Stretched Exponential Decline (SEPD). 3. Duong Method. 4. Logistic Growth Model (LGM). Each method has different tuning parameters and equation forms. The main objective of this work is to determine the best method(s) in terms of Estimated Ultimate Recovery (EUR) accuracy, goodness of fit, and ease of matching. In addition, these methods are compared against each other at different production times in order to understand the effect of production time on forecasts. As a part of validation process, all methods are benchmarked against simulation. This study compares the decline methods to four simulation cases which represent the common shale declines observed in the field. Shale wells, which are completed with horizontal wells and multiple traverse highly-conductive hydraulic fractures, exhibit long transient linear flow. Based on certain models, linear flow is preceded by bilinear flow if natural fractures are present. In addition to this, linear flow is succeeded by Boundary Dominated Flow (BDF) decline when pressure wave reaches boundary. This means four declines are possible, hence four simulation cases are required for comparison. To facilitate automatic data fitting, a non-linear regression program was developed using excel VBA. The program optimizes the Least-Square (LS) objective function to find the best fit. The used optimization algorithm is the Levenberg-Marquardt Algorithm (LMA) and it is used because of its robustness and ease of use. This work shows that all methods forecast different EURs and some fit certain simulation cases better than others. In addition, no method can forecast EUR accurately without reaching BDF. Using this work, engineers can choose the best method to forecast EUR after identifying the simulation case that is most analogous to their field wells. The VBA program and the matching procedure presented here can help engineers automate these methods into their forecasting sheets.

Kanfar, Mohammed Sami

2013-08-01T23:59:59.000Z

303

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

November 2010 November 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 November 9, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged almost $82 per barrel in October, about $7 per barrel higher than the September average, as expectations of higher oil demand pushed up prices. EIA has raised the average fourth quarter 2010 WTI spot price forecast to about $83 per barrel compared with $79 per barrel in last monthʹs Outlook. WTI spot prices rise to $87 per barrel by the fourth quarter of next year. Projected WTI prices average $79 per barrel in 2010 and $85 per barrel in 2011. WTI futures for January 2011 delivery (for the 5-day period ending November 4)

304

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

December 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 December 7, 2010 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged over $84 per barrel in November, more than $2 per barrel higher than the October average. EIA has raised the average winter 2010-2011 period WTI spot price forecast by $1 per barrel from the last monthʹs Outlook to $84 per barrel. WTI spot prices rise to $89 per barrel by the end of next year, $2 per barrel higher than in the last Outlook. Projected WTI prices average $79 per barrel in 2010 and $86 per barrel in 2011. WTI futures for February 2011 delivery during the 5-day period ending December 2

305

Physical Market Conditions, Paper Market Activity,  

Gasoline and Diesel Fuel Update (EIA)

12 12 Physical Market Conditions, Paper Market Activity, and the WTI-Brent Spread Bahattin Büyükşahin Thomas K. Lee James T. Moser Michel A. Robe* Abstract We document that, starting in the Fall of 2008, the benchmark West Texas Intermediate (WTI) crude oil has periodically traded at unheard of discounts to the corresponding Brent benchmark. We further document that this discount is not reflected in spreads between Brent and other benchmarks that are directly comparable to WTI. Drawing on extant models linking inventory conditions to the futures term structure, we test empirically several conjectures about how time and quality spreads (prompt vs. first-deferred WTI; prompt Brent vs. WTI)

306

The geometry of the critically-periodic curves in the space of cubic polynomials  

E-Print Network (OSTI)

We provide an algorithm for computing the Euler characteristic of the curves $S_p$ in the space of cubic polynomials, consisting of all polynomials with a periodic critical point of period $p$. The curves were introduced in [Milnor, Bonifant-Kiwi-Milnor], and the algorithm applies the main results of [DeMarco-Pilgrim]. The output is shown for periods $p \\leq 26$.

DeMarco, Laura

2012-01-01T23:59:59.000Z

307

High-speed hardware implementations of Elliptic Curve Cryptography: A survey  

Science Conference Proceedings (OSTI)

For the last decade, Elliptic Curve Cryptography (ECC) has gained increasing acceptance in the industry and the academic community and has been the subject of several standards. This interest is mainly due to the high level of security with relatively ... Keywords: Efficiency-flexibility tradeoffs, Elliptic Curve Cryptography, High-speed hardware implementation, Network applications, Public-key cryptography

Guerric Meurice de Dormale; Jean-Jacques Quisquater

2007-02-01T23:59:59.000Z

308

Serial Data Fusion Using Space-filling Curves in Wireless Sensor Networks  

E-Print Network (OSTI)

Serial Data Fusion Using Space-filling Curves in Wireless Sensor Networks Swapnil Patil and Samir R-- This paper considers serial fusion as a mechanism for collaborative signal detection. The advantage fusion based on simple models . We also develop a space-filling curve-based routing mechanism for message

Nasipuri, Asis

309

Effects of wind shear and turbulence on wind turbine power curves  

DOE Green Energy (OSTI)

It is a common practice to use wind speeds at hub height in determining wind turbine power curves. Although the possible influence of other variables (sub as turbulence and wind shear) is generally neglected in power curve measurements, we discovered the importance of other variables in an analysis of power curves for three 2.5 MW wind turbines. When the power curves were stratified by turbulence intensity. Such a large sensitivity to turbulence was not expected, and further analyses were conducted to determine if other factors accompanying the change in turbulence level could cause or contribute to the observed sensitivity of the power curves to turbulence. In summary, the sensitivity of the observed power curves was largely due to two factors: (1) an actual sensitivity to turbulence in determining the power curve and (2) the deviation of the disk-averaged velocity from the hub-height velocity under low turbulence conditions that were most prevalent at the site. An examination of the wind shear profiles over the height of the rotor disk revealed that low turbulence conditions were characterized by strong shear in the lower half of the rotor disk and weak or negative shear in the upper half. Implications of this analysis are that significant errors in power curve measurements can result if the effects of wind shear and turbulence are ignored. 7 refs., 6 figs.

Elliott, D.L. (Pacific Northwest Lab., Richland, WA (USA)); Cadogan, J.B. (USDOE, Washington, DC (USA))

1990-09-01T23:59:59.000Z

310

High-power I-V curve tracer employing a capacitive load  

SciTech Connect

A portable, photovoltaic voltage versus current curve tracer is discussed. The curve tracer employs a capacitive load to provide automatic sweeping of the array voltage. The unit is capable of measuring arrays up to 10 kW, but is similar and lighter than a conventional 2.5-kW dissipative load.

Warner, T.H.; Cox, C.H. III

1981-01-01T23:59:59.000Z

311

Explaining the light curves of Gamma-ray Bursts with precessing jets  

E-Print Network (OSTI)

A phenomenological model is presented to explain the light curves of gamma-ray bursts. Gamma-rays are produced in a narrow beam which sweeps through space due to the precession of a slaved accretion disc. The light curve expected from such a precessing luminosity cone can explain the complex temporal behavior of bright gamma-ray bursts.

Simon Portegies Zwart

1999-03-13T23:59:59.000Z

312

A parameterization of the Fermat curves satisfying x^(2N)+y^(2N)=1  

E-Print Network (OSTI)

Note that the family of closed curves C_N={(x,y)\\in R^2;x^(2N)+y^(2N)=1} for N=1,2,3,... approaches the boundary of [-1,1]^2 as N \\to \\infty. In this paper we exhibit a natural parameterization of these curves and generalize to a larger class of equations.

Kerry M. Soileau

2007-07-20T23:59:59.000Z

313

A C²-continous B-spline Quaternion Curve Interpolating a Given Sequence of Solid Orientations  

E-Print Network (OSTI)

An algorithm is presented that constructs a C²-continuous B-spline quaternion curve which interpolates a given sequence of unit quaternions on the rotation group SO(3). The de Casteljau type construction method of B-spline curves can be extended to generate B-spline quaternion curves [Sch92]; however, the B-spline quaternion curves do not have C²-continuity in SO(3). The authors [KKS94a] recently suggested a new construction method that can extend a Bspline curve to a similar one in SO(3) while preserving the C^k-continuity of the B-spline curve. We adapt this method for the construction of a B-spline quaternion interpolation curve. Thus, the problem essentially reduces to the problem of finding the control points for the B-spline interpolation curve. However, due to the non-linearity of the associated constraint equations, it is non-trivial to compute the B-spline control points. We provide an efficient iterative refinement solution which can approximate the control points...

Myoung-Jun Kim; Myung-soo Kim; Sung Yong Shin

1995-01-01T23:59:59.000Z

314

A Probabilistic Graphical Approach to Computing Electricity Price Duration Curves under Price and  

E-Print Network (OSTI)

A Probabilistic Graphical Approach to Computing Electricity Price Duration Curves under Price,oren}@ieor.berkeley.edu Abstract-- The electricity price duration curve (EPDC) repre- sents the probability distribution function of the electricity price considered as a random variable. The price uncertainty comes both from the demand side

Oren, Shmuel S.

315

MODULI SPACES OF PARABOLIC HIGGS BUNDLES AND PARABOLIC K(D) PAIRS OVER SMOOTH CURVES: I  

E-Print Network (OSTI)

MODULI SPACES OF PARABOLIC HIGGS BUNDLES AND PARABOLIC K(D) PAIRS OVER SMOOTH CURVES: I HANS U. BODEN AND K â?? OJI YOKOGAWA Abstract. This paper concerns the moduli spaces of rank two parabolic Higgs bundles and parabolic K(D) pairs over a smooth curve. Precisely which parabolic bundles occur in stable K

Boden, Hans U.

316

Hardware architectures for MSP430-based wireless sensor nodes performing elliptic curve cryptography  

Science Conference Proceedings (OSTI)

Maximizing the battery lifetime of wireless sensor nodes and equipping them with elliptic curve cryptography is a challenge that requires new energy-saving architectures. In this paper, we present an architecture that drops a hardware accelerator between ... Keywords: ASIC, MSP430, elliptic curve cryptography, hardware, software, wireless sensor nodes

Erich Wenger

2013-06-01T23:59:59.000Z

317

Sampling points on regular parametric curves with control of their distribution  

Science Conference Proceedings (OSTI)

We propose an iterative algorithm to generate a sequence of a prescribed number of points on a parametric curve with control of their distribution. Our algorithm depends on a free parameter which controls the achievement of a final distribution of points ... Keywords: arc length parametrization, parametric curves, rational linear reparametrization, sampling points

Victoria Hernández-Mederos; Jorge Estrada-Sarlabous

2003-09-01T23:59:59.000Z

318

Melting curve and Hugoniot of molybdenum up to 400 GPa by ab initio simulations  

E-Print Network (OSTI)

with the high pressure melting curve from static compression experiments. Our calculated P(V ) and T(P) Hugoniot on new ab initio calculations of Tm(P) for Mo, and on the P(V ) and T(P) relations on the Hugoniot. We it to calculate melting curves. In such calculations, no empirical model is used to describe the interactions

Alfè, Dario

319

Mechanical behavior analysis of CDIO production-blood vessel robot in curved blood vessel  

Science Conference Proceedings (OSTI)

In order to analyze mechanical behavior of blood vessel robot (student's CDIO production) in curved blood, and provide the data for outline design of robot, the flow field out side of robot is numerical simulated. The results show that the vessel shape ... Keywords: blood vessel robot, curved blood vessel, mechanical behavior analysis, numerical simulation

Fan Jiang; Chunliang Zhang; Yijun Wang

2010-10-01T23:59:59.000Z

320

Renewable Electricity Futures Study. Volume 1: Exploration of High-Penetration Renewable Electricity Futures  

DOE Green Energy (OSTI)

The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

Mai, T.; Wiser, R.; Sandor, D.; Brinkman, G.; Heath, G.; Denholm, P.; Hostick, D.J.; Darghouth, N.; Schlosser, A.; Strzepek, K.

2012-06-01T23:59:59.000Z

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


321

A $70/tCO2 greenhouse gas mitigation backstop for China’s industrial and electric power sectors: insights from a comprehensive CCS cost curve  

Science Conference Proceedings (OSTI)

As one of the world's fastest growing economies with abundant coal reserves, China's carbon dioxide (CO2) emissions have doubled in the last decade and are expected to continue growing for the foreseeable future. While the Central Government has been promoting development and growth of cleaner and more efficient energy systems, efforts to reduce carbon emissions from the heavily coal-based economy may require continued and increased development and deployment of carbon dioxide capture and storage (CCS) technologies. This paper presents the first detailed, national-scale assessment of CCS potential across the diverse geographic, geologic, and industrial landscape of China, through the lens of an integrated CCS cost curve. It summarizes the development of a cost curve representing the full chain of components necessary for the capture and geologic storage of CO2 from China's power generation and industrial sectors. Individual component cost estimates are described, along with the optimized source-sink matching of over 1,600 large stationary CO2 sources and 2300 gigatons of CO2 storage capacity within 90 major deep geologic onshore sedimentary sub-basins, to develop a cost curve incorporating CO2 capture, compression, transport, and storage. Results suggest that CCS can provide an important greenhouse gas mitigation option for most regions and industrial sectors in China, able to store more than 80% of emissions from these large CO2 sources (2900 million tons of CO2 annually) at costs less than $70/tCO2 for perhaps a century or more.

Dahowski, Robert T.; Davidson, Casie L.; Li, Xiaochun; Wei, Ning

2012-08-27T23:59:59.000Z

322

Low Carbon Growth: a Potential Path for Mexico - GHG Abatement Cost Curve |  

Open Energy Info (EERE)

Growth: a Potential Path for Mexico - GHG Abatement Cost Curve Growth: a Potential Path for Mexico - GHG Abatement Cost Curve (Redirected from Mexico-McKinsey GHG Abatement Cost Curve) Jump to: navigation, search Name Low Carbon Growth: a Potential Path for Mexico - GHG Abatement Cost Curve Agency/Company /Organization Centro Mario Molina, McKinsey and Company Sector Energy, Land Focus Area Energy Efficiency, Renewable Energy Topics Resource assessment, Background analysis Website http://www.esmap.org/filez/pub Country Mexico Central America References ESMAP Low Carbon Growth Country Studies Program[1] References ↑ "ESMAP Low Carbon Growth Country Studies Program" Retrieved from "http://en.openei.org/w/index.php?title=Low_Carbon_Growth:_a_Potential_Path_for_Mexico_-_GHG_Abatement_Cost_Curve&oldid=3289

323

Supply Curves for Solar PV-Generated Electricity for the United States  

DOE Green Energy (OSTI)

Energy supply curves attempt to estimate the relationship between the cost of an energy resource and the amount of energy available at or below that cost. In general, an energy supply curve is a series of step functions with each step representing a particular group or category of energy resource. The length of the step indicates how much of that resource is deployable or accessible at a given cost. Energy supply curves have been generated for a number of renewable energy sources including biomass fuels and geothermal, as well as conservation technologies. Generating a supply curve for solar photovoltaics (PV) has particular challenges due to the nature of the resource. The United States has a massive solar resource base -- many orders of magnitude greater than the total consumption of energy. In this report, we examine several possible methods for generating PV supply curves based exclusively on rooftop deployment.

Denholm, P.; Margolis, R.

2008-11-01T23:59:59.000Z

324

The Future of Biofuels | Department of Energy  

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

The Future of Biofuels The Future of Biofuels The Future of Biofuels Addthis Description Secretary Chu discusses why feedstock grasses such as miscanthus could be the future of biofuels. Speakers Secretary Steven Chu Duration 1:46 Topic Biofuels Bioenergy Credit Energy Department Video SECRETARY STEVEN CHU: This is a photograph of a perennial grass called miscanthus. It was grown without irrigation, without fertilizer. And in the autumn, you just shave it off. You use that to convert it to ethanol. The amount of ethanol in this particular plot of land outside the University of Illinois produces 15 times more ethanol than a similar plot of land if you grew corn, and the energy inputs are far less. So we need to develop methods in order to use these grassy, woody substances and also agricultural waste - wheat straw, rice straw, corn

325

NREL: Energy Analysis - Renewable Electricity Futures Study  

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

Renewable Electricity Futures Study Renewable Electricity Futures Study RE Futures Visualizations These visualizations are based on RE Futures modeling and represent the transformation of the U.S. electric system to a high renewable system from 2010 to 2050 and the hourly operation and transmission flow of that system in 2050. Transformation of the Electric Sector (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display the transformation of the electric sector in 2010 through 2050 Hourly Operation in 2050 (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display hourly operation in 2010 through 2050 Power Flow in 2050 (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display power flow in 2010 through 2050

326

NYMEX Coal Futures - Energy Information Administration  

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

NYMEX Coal Futures Near-Month Contract Final Settlement Price 2013 NYMEX Coal Futures Near-Month Contract Final Settlement Price 2013 Data as of: December 13, 2013 | Release Date: December 16, 2013 | Next Release Date: December 30, 2013 U.S. coal exports, chiefly Central Appalachian bituminous, make up a significant percentage of the world export market and are a relevant factor in world coal prices. Because coal is a bulk commodity, transportation is an important aspect of its price and availability. In response to dramatic changes in both electric and coal industry practices, the New York Mercantile Exchange (NYMEX) after conferring with coal producers and consumers, sought and received regulatory approval to offer coal futures and options contracts. On July 12, 2001, NYMEX began trading Central Appalachian Coal futures under the QL symbol.

327

Dynamic spectrum access -- concepts and future architectures  

Science Conference Proceedings (OSTI)

New trends and developments in radio technology are enhancing the future capabilities of devices to access electromagnetic spectrum using the full range of dimensions associated with the spectrum. This increased capability, together with current developments ...

M. Nekovee

2006-04-01T23:59:59.000Z

328

Oilseeds of the future: Part 2  

Science Conference Proceedings (OSTI)

inform's examination of some of the trait-modified oilseeds currently in research and development pipelines around the world continues with this month's look at work in cottonseed, flax, and oil palm. Oilseeds of the future: Part 2 Oil

329

Better Buildings for a Brighter Future  

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

million annually on their energy bills Building a Brighter Future The average American household spends nearly 2,000 per year on energy used in the home, but 200 to 400 of...

330

Future characteristics of Offshore Support Vessels  

E-Print Network (OSTI)

The objective of this thesis is to examine trends in Offshore Support Vessel (OSV) design and determine the future characteristics of OSVs based on industry insight and supply chain models. Specifically, this thesis focuses ...

Rose, Robin Sebastian Koske

2011-01-01T23:59:59.000Z

331

RHIC | A Compelling Case for RHIC's Future  

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

The Future of RHIC Physics STAR data Collaboration PHENIX A Nuclear Science Advisory Committee subpanel chaired by Bob Tribble of Texas A&M University is charged with recommending...

332

Science and Technology of Future Light Sources  

E-Print Network (OSTI)

DESY) Herman Winick (SLAC) Mike Zisman (LBNL) WHITE PAPER of Future Light Sources A White Paper Report prepared byheart of the all- 24  WHITE PAPER  Science and Technology of

Bergmann, Uwe

2009-01-01T23:59:59.000Z

333

Underwater Gliders: Recent Developments and Future Applications  

E-Print Network (OSTI)

Underwater Gliders: Recent Developments and Future Applications (Invited Paper) R. Bachmayer, N underwater vehicles, and in particular au- tonomous underwater gliders, represent a rapidly maturing of an underwater glider system for propulsion, control, communication and sensing. A typical glider operation

Leonard, Naomi

334

2004: Sign of the Future for Refiners?  

Reports and Publications (EIA)

A presentation to the NPRA Annual Meeting discussing the major factors that drove petroleum prices, price differentials, and margins in 2004, and what this might mean for refiners as we look towards the future.

Information Center

2005-03-14T23:59:59.000Z

335

Free: The Future of a Radical Price  

Science Conference Proceedings (OSTI)

The New York Times bestselling author heralds the future of business in Free. In his revolutionary bestseller, The Long Tail, Chris Anderson demonstrated how the online marketplace creates niche markets, allowing products and consumers to connect in ...

Chris Anderson

2009-07-01T23:59:59.000Z

336

The Future of Biofuels | Department of Energy  

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

Energy 101: Geothermal Heat Pumps Why Cool Roofs? Chu at COP-16: Building a Sustainable Energy Future Secretary Chu and the 'Sputnik Moment' New Orleans and Energy Efficiency Cathy...

337

Factors shaping the future of Cloud Computing  

E-Print Network (OSTI)

Many different forces are currently shaping the future of the Cloud Computing Market. End user demand and end user investment in existing technology are important drivers. Vendor innovation and competitive strategy are ...

Francis, Steven (Steven Douglas)

2011-01-01T23:59:59.000Z

338

Fueling the Future with Fungal Genomics  

E-Print Network (OSTI)

yeast for improved biofuel production. Science. 330:84-86.current and future biofuel production processes. From crop/platforms for biomass-to-biofuel production on an industrial

Grigoriev, Igor V.

2011-01-01T23:59:59.000Z

339

Price distortions in the commodity futures markets  

E-Print Network (OSTI)

Speculation is not monolithic; it comes in many forms. A certain level of speculation is required for commodity futures markets to function. On the other hand, certain types of trading activities by speculators may damage ...

Helfrich, Devin B

2012-01-01T23:59:59.000Z

340

NETL: Our History Powers America's Future  

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

Our History Powers America's Future 100 Year Logo For the last century, NETL has been on a quest to find energy answers. On May 16, 1910, the newly created U.S. Bureau of Mines...

Note: This page contains sample records for the topic "wti futures curve" 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

Addressing an Uncertain Future Using Scenario Analysis  

E-Print Network (OSTI)

a scenario may be an oil price hike in a future year, whichon the impact of high oil prices on the global economy (seethe scenario of a high oil price (of US$35/barrel, which is

Siddiqui, Afzal S.; Marnay, Chris

2008-01-01T23:59:59.000Z

342

Water Conservation - Past, Present, and Future  

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

Water Conservation - Past, Present, and Future Speaker(s): Dick Bennett Date: July 31, 2003 - 12:00pm Location: Bldg. 90 The presentation will provide a brief background on water...

343

Panel on future challenges in modeling methodology  

Science Conference Proceedings (OSTI)

This panel paper presents the views of six researchers and practitioners of simulation modeling. Collectively we attempt to address a range of key future challenges to modeling methodology. It is hoped that the views of this paper, and the presentations ...

Simon J. E. Taylor; Peter Lendermann; Ray J. Paul; Steven W. Reichenthal; Steffen Straßburger; Stephen J. Turner

2004-12-01T23:59:59.000Z

344

Magnetic fusion: planning for the future  

SciTech Connect

A brief review of international cooperation in the fusion program is given. The author shares his views on the technical prospects and future potential of fusion as a practical energy source. (MOW)

Fowler, T.K.

1984-02-07T23:59:59.000Z

345

California Immigrant Families: Issues for California's Future  

E-Print Network (OSTI)

F O R N I A CPRC Brief CALIFORNIA PROGRAM ON ACCESS TO CAREFamilies: Issues for California’s Future Public Forumsin the United States lives in California, few studies have

Research Center, California Policy; Health Policy Research, UCLA Center for

2000-01-01T23:59:59.000Z

346

Photonuclear reactions: Past, present, and future  

Science Conference Proceedings (OSTI)

This contribution is supposed to provide an introduction to the discussion of future research opportunities at the planned {gamma}-ray beam of the ELI-Nuclear Physics pillar. It contains a brief overview on the history of photonuclear science, some fundamental facts on photonuclear reactions at energies below 20 MeV, a few examples for recent photonuclear research, and a brief outlook to a future with ELI-NP.

Pietralla, N. [Institut fuer Kernphysik, TU Darmstadt, 64289 Darmstadt (Germany) and GSI Helmholtzzentrum fuer Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany)

2012-07-09T23:59:59.000Z

347

NETL: FutureGen Final EIS  

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

Home > Technologies > Coal & Power Systems > FutureGen > EIS Home > Technologies > Coal & Power Systems > FutureGen > EIS FutureGen FutureGen Project Final Environmental Impact Statement (DOE/EIS-0394) Links presented below access the individual chapters and/or full volumes of the Final FutureGen Environmental Impact Statement (DOE/EIS-0394) and related documentation. If you would like to request a hardcopy of the stand-alone summary or the entire EIS, or a CD version, please send your name and mailing address to FutureGen.EIS@netl.doe.gov. Due to the high cost of shipping the four-volume EIS (approximately 2,500 pages) and possible duties or tariffs for copies sent to locations outside the U.S., DOE encourages requestors to download the document using the links below or to request only a CD. However, if requestors are willing and able to pay the applicable duties or tariffs, DOE will send hardcopies to locations outside the U.S. Please be aware that long delays may be possible and duties or tariffs may cost $100 (USD) or more.

348

Primer on electricity futures and other derivatives  

SciTech Connect

Increased competition in bulk power and retail electricity markets is likely to lower electricity prices, but will also result in greater price volatility as the industry moves away from administratively determined, cost-based rates and encourages market-driven prices. Price volatility introduces new risks for generators, consumers, and marketers. Electricity futures and other derivatives can help each of these market participants manage, or hedge, price risks in a competitive electricity market. Futures contracts are legally binding and negotiable contracts that call for the future delivery of a commodity. In most cases, physical delivery does not take place, and the futures contract is closed by buying or selling a futures contract on or near the delivery date. Other electric rate derivatives include options, price swaps, basis swaps, and forward contracts. This report is intended as a primer for public utility commissioners and their staff on futures and other financial instruments used to manage price risks. The report also explores some of the difficult choices facing regulators as they attempt to develop policies in this area.

Stoft, S.; Belden, T.; Goldman, C.; Pickle, S.

1998-01-01T23:59:59.000Z

349

Recent gasoline and diesel prices track Brent and LLS, not WTI ...  

U.S. Energy Information Administration (EIA)

Petroleum & Other Liquids. Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids. Natural Gas

350

WTI discount to Brent and premium to Bakken both rising in ...  

U.S. Energy Information Administration (EIA)

It is likely that concerns regarding oil transportation bottlenecks throughout the central United States and increasing production from shale ...

351

WTI-Brent crude oil price spread has reached unseen levels - Today ...  

U.S. Energy Information Administration (EIA)

Petroleum & Other Liquids. Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids. Natural Gas

352

3:2:1 Crack spreads based on WTI & LLS crude oils have diverged in ...  

U.S. Energy Information Administration (EIA)

Crude oil, gasoline, heating oil, diesel, propane, ... such as LLS, which compete with imported grades whose prices are linked to Brent prices. ...

353

WTI discount to Brent and premium to Bakken both rising in early ...  

U.S. Energy Information Administration (EIA)

However, last month the owners of the Seaway pipeline announced the expected reversal of the line would not be completed until June 1, ...

354

Conservation screening curves to compare efficiency investments topower plants: Applications to commercial sector conservationprograms  

SciTech Connect

This paper describes a simplified methodology to compare supply and demand-side resources. The screening curve approach supplements with load shape information the data contained in a supply curve of conserved energy. In addition, a screening curve contains information on competing supply technologies, such as annualized capital costs, variable costs, and cost per delivered kWh. The information in the screening curve allows policymakers to promptly and conveniently compare the relevant parameters affecting supply and demand-side investment decisions. While many sophisticated computer models have evolved to account for the load shape impacts of energy efficiency investments, this sophistication has, by and large, not trickled down to spreadsheet-level or 'back-of-the-envelope' analyses. Our methodology allows a simple summary of load shape characteristics based on the output of the more complicated models. It offers many advantages, principal of which is clarity in analyzing supply and demand-side investment choices. This paper first describes how supply-side screening curves have been used in the past, and develops the conceptual tools needed to apply integrated supply/demand screening curves in the least-cost utility planning process. It then presents examples of supply-side technologies and commercial sector demand-side management programs, and plots them on representative screening curves.

Koomey, Jonathan; Rosenfeld, Arthur H.; Gadgil, Ashok J.

1990-08-01T23:59:59.000Z

355

Determination of Cepheid parameters by light-curve template-fitting  

E-Print Network (OSTI)

We describe techniques to characterise the light-curves of regular variable stars by applying principal component analysis (PCA) to a training set of high quality data, and to fit the resulting light-curve templates to sparse and noisy photometry to obtain parameters such as periods, mean magnitudes etc. The PCA approach allows us to efficiently represent the multi-band light-curve shapes of each variable, and hence quantitatively describe the average behaviour of the sample as a smoothly varying function of period, and also the range of variation around this average. In this paper we focus particularly on the utility of such methods for analysing HST Cepheid photometry, and present simulations which illustrate the advantages of our PCA template-fitting approach. These are: accurate parameter determination, including light-curve shape information; simultaneous fitting to multiple passbands; quantitative error analysis; objective rejection of variables with non Cepheid-like light-curves or those with potential period aliases. We also use PCA to confirm that Cepheid light-curve shapes are systematically different (at the same period) between the Milky Way (MW) and the Large and Small Magellanic Clouds (LMC, SMC), and consider whether light-curve shape might therefore be used to estimate the mean metallicities of Cepheid samples, thus allowing metallicity corrections to be applied to derived distance estimates.

N. R. Tanvir; M. A. Hendry; A. Watkins; S. M. Kanbur; L. N. Berdnikov; C. C. Ngeow

2005-04-19T23:59:59.000Z

356

Voltage-current curves for a planar symmetrical diode with reverse bias  

Science Conference Proceedings (OSTI)

We have examined thermionic emission for the (110) crystallographic plane (face) in W and have examined the voltage-current curves in the retarding-potential range. The diode had cathode and anode composed of identical (100) and (111) faces of tungsten single crystals having 99.999 wt. % purity. The back-bias curves measured with a tungsten single crystal are described for T > /Theta//sub te/ by an expression derived for a recombination-emission model. These curves and the temperature dependence of the intensity for the recombination-emission spectra have been used to determine the electron excitation energy.

Azizov, E.E.; Babaev, V.G.; Mashtakova, V.A.

1988-07-01T23:59:59.000Z

357

Energy Injection Episodes in Gamma Ray Bursts: The Light Curves and Polarization Properties of GRB 021004  

E-Print Network (OSTI)

Several GRB afterglow light curves deviate strongly from the power law decay observed in most bursts. We show that these variations can be accounted for by including refreshed shocks in the standard fireball model previously used to interpret the overall afterglow behavior. As an example we consider GRB 021004 that exhibited strong light curve variations and has a reasonably well time-resolved polarimetry. We show that the light curves in the R-band, X-rays and in the radio can be accounted for by four energy injection episodes in addition to the initial event. The polarization variations are shown to be a consequence of the injections.

Björnsson, G; Johannesson, G

2004-01-01T23:59:59.000Z

358

Energy Injection Episodes in Gamma Ray Bursts: The Light Curves and Polarization Properties of GRB 021004  

E-Print Network (OSTI)

Several GRB afterglow light curves deviate strongly from the power law decay observed in most bursts. We show that these variations can be accounted for by including refreshed shocks in the standard fireball model previously used to interpret the overall afterglow behavior. As an example we consider GRB 021004 that exhibited strong light curve variations and has a reasonably well time-resolved polarimetry. We show that the light curves in the R-band, X-rays and in the radio can be accounted for by four energy injection episodes in addition to the initial event. The polarization variations are shown to be a consequence of the injections.

G. Bjornsson; E. H. Gudmundsson; G. Johannesson

2004-09-24T23:59:59.000Z

359

Development of In-Situ Fan Curve Measurement with One Airflow Measurement  

E-Print Network (OSTI)

Fan airflow is the key parameter for air volume tracking control in variable air volume systems. One of the airflow measurement methods is to determine airflow using the fan speed, fan head, and fan curve. Both fan speed and fan head can be measured accurately. Therefore, the accuracy of the fan airflow depends on the accuracy of the fan curve. An experimental method has been developed to determine the in-situ fan curve with only one airflow measurement. This paper presents the theoretical background, experimental procedures, and verification results.

Liu, G.; Joo, I. S.; Song, L.; Liu, M.

2003-01-01T23:59:59.000Z

360

The future steelmaking industry and its technologies  

SciTech Connect

The objective of this report is to develop a vision of the future steelmaking industry including its general characteristics and technologies. In addition, the technical obstacles and research and development opportunities for commercialization of these technologies are identified. The report is being prepared by the Sloan Steel Industry Competitiveness Study with extensive input from the industry. Industry input has been through AISI (American Iron and Steel Institute), SMA (Steel Manufacturers Association) and contacts with individual company executives and technical leaders. The report identifies the major industry drivers which will influence technological developments in the industry for the next 5--25 years. Initially, the role of past drivers in shaping the current industry was examined to help understand the future developments. Whereas this report concentrates on future technologies other major factors such as national and international competition, human resource management and capital concerns are examined to determine their influence on the future industry. The future industry vision does not specify specific technologies but rather their general characteristics. Finally, the technical obstacles and the corresponding research and development required for commercialization are detailed.

Fruehan, R.J.; Paxton, H.W.; Giarratani, F.; Lave, L. [Carnegie-Mellon Univ., Pittsburgh, PA (United States)]|[Pittsburgh Univ., PA (United States)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

Encoding cosmological futures with conformal structures  

E-Print Network (OSTI)

Quiescent cosmology and the Weyl curvature hypothesis possess a mathematical framework, namely the definition of an Isotropic Singularity, but only for the initial state of the universe. A complementary framework is necessary to also encode appropriate cosmological futures. In order to devise a new framework we analyse the relation between regular conformal structures and (an)isotropy, the behaviour and role of a monotonic conformal factor which is a function of cosmic time, as well as four example cosmologies for further guidance. Finally, we present our new definitions of an Anisotropic Future Endless Universe and an Anisotropic Future Singularity which offer a promising realisation for the new framework. Their irregular, degenerate conformal structures differ significantly from those of the Isotropic Singularity. The combination of the three definitions together could then provide the first complete formalisation of the quiescent cosmology concept. For completeness we also present the new definitions of an Isotropic Future Singularity and a Future Isotropic Universe. The relation to other approaches, in particular to the somewhat dual dynamical systems approach, and other asymptotic scenarios is briefly discussed.

Philipp A Hoehn; Susan M Scott

2010-01-18T23:59:59.000Z

362

Future Upgrades | Brookhaven and the LHC  

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

Future Upgrades Future Upgrades Magnetic field inside a Nb3Sn quadropole magnet Magnetic field inside a Nb3Sn quadropole magnet. Brookhaven leads various technical coordination efforts for the upgrade of the ATLAS detector, including constructing the new silicon tracker, liquid argon electronics, and the new muon chambers. Brookhaven also contributes to the commissioning and future upgrade of the LHC itself in two areas: accelerator physics and superconducting magnets. This work is carried out as part of the U.S. LHC Accelerator Research Program (LARP) in collaboration with Fermilab, Lawrence Berkeley National Lab, and the Stanford Linear Accelerator Center. The ultimate goal of the upgrade program is to increase the rate and efficiency of particle collisions, a measure known as luminosity.

363

Protecting the environment into the future  

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

Protecting the Environment Into the Future Protecting the Environment Into the Future Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Protecting the environment into the future Last year, the Lab recycled 47 percent of its solid, non-hazardous waste by placing it in the recycling containers. February 1, 2013 dummy image Read our archives. Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email The Lab's recycle rate of 47 percent compares favorably with the current national rate of 34 percent. Lab Employees Don't Treat Their Trash Like Garbage Last year, the Lab recycled 47 percent of its solid, non-hazardous waste (which translates to about 1,275 metric tons of paper, cardboard, plastic bottles, and aluminum cans) by placing it in the recycling containers that

364

Future scientists advance to national level  

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

Future scientists advance to national level Future scientists advance to national level Future scientists advance to DOE national competition A team from Los Alamos bested 39 other teams from around New Mexico in the 10-hour New Mexico Regional Science Bowl. April 3, 2012 Members of the Los Alamos High School Science Bowl Team Members of the Los Alamos High School Science Bowl Team were in Washington DC after their regional win, representing New Mexico in the 22nd Annual Department of Energy (DOE) National Science Bowl. Contact Kurt Steinhaus (505) 665-7370 Email "These kids are very well-versed in math and science, Science Bowl winners represent NM in Washington, D.C. A team from Los Alamos bested 39 other teams from around New Mexico in the 10-hour New Mexico Regional Science Bowl, held recently at Albuquerque

365

Biomass Energy in a Carbon Constrained Future  

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

Biomass Energy in a Carbon Constrained Future Biomass Energy in a Carbon Constrained Future Speaker(s): William Morrow Date: September 3, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Eric Masanet Two areas of research will be presented: potential roles that domestically sourced biomass energy could play in achieving U.S. environmental and petroleum security goals, and possible pathways for achieving California's long-term greenhouse gas reduction goals. Biomass energy is viewed by many in the electricity and transportation fuel sectors as offering benefits such as greenhouse gas emissions reductions and petroleum fuel substitution. For this reason a large-scale biomass energy industry future is often anticipated although currently biomass energy provides only a small contribution to these sectors. Agriculture models, however,

366

Winning the Biofuel Future | Department of Energy  

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

Biofuel Future Biofuel Future Winning the Biofuel Future March 7, 2011 - 4:44pm Addthis Secretary Chu Secretary Chu Former Secretary of Energy Today, the Department announced that a research team at our BioEnergy Science Center achieved yet another advance in the drive toward next generation biofuels: using a microbe to convert plant matter directly into isobutanol. Isobutanol can be burned in regular car engines with a heat value higher than ethanol and similar to gasoline. This is part of a broad portfolio of work the Department is doing to reduce America's dependence on foreign oil and create new economic opportunities for rural America. This announcement is yet another sign of the rapid progress we are making in developing the next generation of biofuels that can help reduce our oil

367

The House of the Future at MIT  

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

The House of the Future at MIT The House of the Future at MIT Speaker(s): Kent Larson Date: December 6, 2002 - 12:00pm Location: Bldg. 90 During this seminar, Professor Larson will discuss two related housing initiatives at MIT: Changing Places/Houses in The MIT Home of the Future Consortium. Change is accelerating, but the places we create are largely static and unresponsive. "Changing Places" is an MIT research consortium that explores how new technologies, materials, and strategies for design can make possible dynamic, evolving places that respond to the complexities of life. Open Source Building Alliance Providing individuals with choice creates competition and incentives for innovation. Mass-customization requires a modular component-based approach, which creates a pathway for new players to enter the $852

368

Science for the Future of RHIC  

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

77334-2006-IR 77334-2006-IR Future Science at the Relativistic Heavy Ion Collider December 30, 2006 Summary of the 2004 - 2005 RHIC II Science Working Groups 1 2 Table of contents 1. Overview 4 2. Summary of the first 5 years at RHIC 9 2..1. Heavy ion physics 9 2..2. Spin physics 18 3. The RHIC facility - evolution and future 22 4. Fundamental questions for the next ten years at RHIC 25 4.1. What are the phases of QCD matter? 25 4.2. What is the wave function of a heavy nucleus. 26 4.3. What is the wave function of the proton? 26 4.4. What is the nature of non-equilibrium processes in a fundamental theory? 27 5. The future physics program at RHIC 28 5.1. Equation of state and the QCD phase diagram 29 5.1.1. Dynamical considerations 29

369

Transportation Energy Futures | OpenEI  

Open Energy Info (EERE)

Energy Futures Energy Futures Dataset Summary Description The 2009 National Household Travel Survey (NHTS) provides information to assist transportation planners and policy makers who need comprehensive data on travel and transportation patterns in the United States. The 2009 NHTS updates information gathered in the 2001 NHTS and in prior Nationwide Personal Transportation Surveys (NPTS) conducted in 1969, 1977, 1983, 1990, and 1995. Source U.S. Department of Transportation, Federal Highway Administration Date Released February 28th, 2011 (3 years ago) Date Updated Unknown Keywords NHTS TEF transportation Transportation Energy Futures travel trip Data application/zip icon Travel Day Trip File (zip, 42.6 MiB) application/zip icon Household File (zip, 5 MiB) application/zip icon Person File (zip, 17.4 MiB)

370

Fueling the future with fungal genomics  

E-Print Network (OSTI)

Fungi play important roles across the range of current and future biofuel production processes. From crop/feedstock health to plant biomass saccharification, enzyme production to bioprocesses for producing ethanol, higher alcohols, or future hydrocarbon biofuels, fungi are involved. Research and development are underway to understand the underlying biological processes and improve them to make bioenergy production efficient on an industrial scale. Genomics is the foundation of the systems biology approach that is being used to accelerate the research and development efforts across the spectrum of topic areas that impact biofuels production. In this review, we discuss past, current, and future advances made possible by genomic analyses of the fungi that impact plant/feedstock health, degradation of lignocellulosic biomass, and fermentation of sugars to ethanol, hydrocarbon biofuels, and renewable chemicals.

Igor V. Grigoriev A; Daniel Cullen B; Stephen B. Goodwin C; David Hibbett D; Thomas W. Jeffries B; Christian P. Kubicek E; Cheryl Kuske F; Jon K. Magnuson G; Francis Martin H; Joseph W. Spatafora I; Adrian Tsang J; Scott E. Baker A

2011-01-01T23:59:59.000Z

371

Technical assessment of community solar future scenarios  

Science Conference Proceedings (OSTI)

The Kent Solar Project goal is to develop energy future scenarios for the community based upon the input of a cross-section of the population. It has been primarily a non-technical development in an attempt to gain community commitment. Social/political/economic issues have been identified as the key obstacles in fulfilling the future scenarios. To communicate the feasibility of solar energy in Kent, Ohio an analysis of the economic potential for solar energy was developed. The Solar Project calls for 25 per cent reduction of present fossil fuel quantities in 1990, achievable by conservation measures, and a 50 per cent reduction in 2000, which necessitates solar technology implementation. The technical analysis is demonstrating the future scenarios to be both feasible and economically wise. The technical assessment requires an in-depth data base of existing comsumption which is not easily identifiable.

Kremers, J.A.

1980-01-01T23:59:59.000Z

372

Fueling the Future with Fungal Genomics  

SciTech Connect

Fungi play important roles across the range of current and future biofuel production processes. From crop/feedstock health to plant biomass saccharification, enzyme production to bioprocesses for producing ethanol, higher alcohols or future hydrocarbon biofuels, fungi are involved. Research and development are underway to understand the underlying biological processes and improve them to make bioenergy production efficient on an industrial scale. Genomics is the foundation of the systems biology approach that is being used to accelerate the research and development efforts across the spectrum of topic areas that impact biofuels production. In this review, we discuss past, current and future advances made possible by genomic analyses of the fungi that impact plant/feedstock health, degradation of lignocellulosic biomass and fermentation of sugars to ethanol, hydrocarbon biofuels and renewable chemicals.

Grigoriev, Igor V.; Cullen, Daniel; Hibbett, David; Goodwin, Stephen B.; Jeffries, Thomas W.; Kubicek, Christian P.; Kuske, Cheryl; Magnuson, Jon K.; Martin, Francis; Spatafora, Joey; Tsang, Adrian; Baker, Scott E.

2011-04-29T23:59:59.000Z

373

FutureGen Industrial Alliance Announces Carbon Storage Site Selection...  

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

FutureGen Industrial Alliance Announces Carbon Storage Site Selection Process for FutureGen 2.0 FutureGen Industrial Alliance Announces Carbon Storage Site Selection Process for...

374

Investing in our Energy Future | Department of Energy  

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

Investing in our Energy Future Investing in our Energy Future A report on the ways in which the recovery act is promoting a clean energy economy. Investing in our Energy Future...

375

Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles  

DOE Patents (OSTI)

A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. The diffracted x-ray beam is caused to pass through a set of horizontal, parallel slits to limit the height of the beam and thereafter. The linear intensity of the diffracted x-ray is measured, suing a linear position sensitive proportional counter, as a function of position in a direction orthogonal to the counter so as to generate two dimensional data. An image of the grains in the curved surface of the polycrystalline article is provided based on the two-dimensional data.

Carpenter, D.A.

1993-09-08T23:59:59.000Z

376

Dependence of Sea Ice Yield-Curve Shape on Ice Thickness  

Science Conference Proceedings (OSTI)

In this note, the authors discuss the contribution that frictional sliding of ice floes (or floe aggregates) past each other and pressure ridging make to the plastic yield curve of sea ice. Using results from a previous study that explicitly ...

Alexander V. Wilchinsky; Daniel L. Feltham

2004-12-01T23:59:59.000Z

377

Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles  

SciTech Connect

A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. The diffracted x-ray beam is caused to pass through a set of horizontal, parallel slits to limit the height of the beam and thereafter. The linear intensity of the diffracted x-ray is measured, using a linear position sensitive proportional counter, as a function of position in a direction orthogonal to the counter so as to generate two dimensional data. An image of the grains in the curved surface of the polycrystalline article is provided based on the two-dimensional data.

Carpenter, Donald A. (Lenior City, TN)

1995-01-01T23:59:59.000Z

378

A cost modeling approach using learning curves to study the evolution of technology  

E-Print Network (OSTI)

The present work looks into the concept of learning curves to decipher the underlying mechanism in cost evolution. The concept is not new and has been used since last seven decades to understand cost walk down in various ...

Kar, Ashish M. (Ashish Mohan)

2007-01-01T23:59:59.000Z

379

A compact moduli space for Cohen-Macaulay curves in projective space  

E-Print Network (OSTI)

We define a moduli functor parametrizing finite maps from a projective (locally) Cohen-Macaulay curve to a fixed projective space. The definition of the functor includes a number of technical conditions, but the most ...

Hønsen, Morten Oskar, 1973-

2004-01-01T23:59:59.000Z

380

A Probabilistic Graphical Approach to Computing Electricity Price Duration Curves under Price and Quantity Competition.  

Science Conference Proceedings (OSTI)

The electricity price duration curve (EPDC) represents the probability distribution function of the electricity price considered as a random variable. The price uncertainty comes both from the demand side and the supply side, since the load varies continuously, ...

Pascal Michaillat; Shmuel Oren

2007-01-01T23:59:59.000Z

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to obtain the most current and comprehensive results.


381

Spectral properties and reflectance curves of the revealed volcanic rocks in Syria using radiometric measurements  

Science Conference Proceedings (OSTI)

This research aimed at studying the spectral reflectance intensity of different exposed volcanic rocks in Syria, and drawing their curves by radiometer measurements. In order to reach this goal, we have studied different kinds of volcanic rocks related ...

M. Rukieh; A. M. Al-Kafri; A. W. Khalaf

2007-07-01T23:59:59.000Z

382

p-ADIC HODGE THEORY Let C be a ?smooth curve over R ... - CECM  

E-Print Network (OSTI)

curve over R minus a divisor that is finite ?tale over R. Let p be a prime not dividing N. Let J be ?the Jacobian over C over R?, which will be an extension of the ...

383

Design computing of complex-curved geometry using digital fabrication methods  

E-Print Network (OSTI)

The production of design information for digital fabrication is presented in this thesis. This thesis outlines the research of generating information for physical construction as architectural models of complex curved walls ...

Griffith, Kenfield A. (Kenfield Allistair)

2006-01-01T23:59:59.000Z

384

On the Design and Optimization of a Quantum Polynomial-Time Attack on Elliptic Curve Cryptography  

Science Conference Proceedings (OSTI)

We consider a quantum polynomial-time algorithm which solves the discrete logarithm problem for points on elliptic curves over GF (2 m ). We improve over earlier algorithms by constructing an efficient ...

Donny Cheung; Dmitri Maslov; Jimson Mathew; Dhiraj K. Pradhan

2008-11-01T23:59:59.000Z

385

Interplay of oxygen-evolution kinetics and photovoltaic power curves on the construction of artificial leaves  

E-Print Network (OSTI)

An artificial leaf can perform direct solar-to-fuels conversion. The construction of an efficient artificial leaf or other photovoltaic (PV)-photoelectrochemical device requires that the power curve of the PV material and ...

Surendranath, Yogesh

386

Floer cohomology in the mirror of the projective plane and a binodal cubic curve  

E-Print Network (OSTI)

We construct a family of Lagrangian submanifolds in the Landau-Ginzburg mirror to the projective plane equipped with a binodal cubic curve as anticanonical divisor. These objects correspond under mirror symmetry to the ...

Pascaleff, James Thomas

2011-01-01T23:59:59.000Z

387

Load-curve responsiveness to weather and the cost-effectiveness of conservation  

SciTech Connect

A cost-benefit analysis of home-weatherization projects using average incremental power costs instead of peak or off-peak costs shows that some programs are no longer cost-effective. Weatherization improves the energy efficiency of houses and reduces demand on the utility, but a study of how monthly load curves at a Pacific Northwest utility responded to weather over a 12-month period indicates that abnormal weather shifts the entire load curve. 1 figure. (DCK)

Hellman, M.M.

1982-09-30T23:59:59.000Z

388

Asymptotic analysis of random matrices with external source and a family of algebraic curves  

E-Print Network (OSTI)

We present a set of conditions which, if satisfied, provide for a complete asymptotic analysis of random matrices with source term containing two distinct eigenvalues. These conditions are shown to be equivalent to the existence of a particular algebraic curve. For the case of a quartic external field, the curve in question is proven to exist, yielding precise asymptotic information about the limiting mean density of eigenvalues, as well as bulk and edge universality.

K. D. T-R McLaughlin

2006-10-20T23:59:59.000Z

389

www.kostic.niu.edu Global Energy and Future:Global Energy and Future  

E-Print Network (OSTI)

Most of BC history Population in millions Time in history www.kostic.niu.edu Earth Energy Balance1 www.kostic.niu.edu Global Energy and Future:Global Energy and Future: Importance of Energy Conservation andImportance of Energy Conservation and Renewable and Alternative Energy Resources

Kostic, Milivoje M.

390

Nuclear Waste and the Distant Future Nuclear Waste and the Distant Future  

E-Print Network (OSTI)

Nuclear Waste and the Distant Future 1 Nuclear Waste and the Distant Future PER F. PETERSON WILLIAM://www.issues.org/22.4/peterson.html Regulation of nuclear hazards must be consistent with rules governing other of the radioactive material generated by nuclear energy decays away over short times ranging from minutes to several

Kammen, Daniel M.

391

Future of Energy SecurityFuture of Energy Security Rajan Gupta  

E-Print Network (OSTI)

Future of Energy SecurityFuture of Energy Security Rajan Gupta Theoretical Division Los Alamos the darkness #12;A mind-boggling global infrastructure (~$15 trillion) provides energy/mobility to ~3.5 billion Hydro Nuclear #12;Fossil fuels and Environment In the 20th century we started to act on pollution

392

DOE Announces Restructured FutureGen Approach to Demonstrate...  

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

Restructured FutureGen Approach to Demonstrate CCS Technology at Multiple Clean Coal Plants DOE Announces Restructured FutureGen Approach to Demonstrate CCS Technology at Multiple...

393

Concept for Management of the Future Electricity System (Smart...  

Open Energy Info (EERE)

Concept for Management of the Future Electricity System (Smart Grid Project) Jump to: navigation, search Project Name Concept for Management of the Future Electricity System...

394

Vision for the Future | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

& Technology Programs > Office of Advanced Simulation and Computing and Institutional R&D Programs > About ASC > Vision for the Future Vision for the Future The first ten years...

395

DOE Hydrogen Analysis Repository: Future Fuel Cell and Internal...  

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

Future Fuel Cell and Internal Combustion Engine Automobile Technologies Project Summary Full Title: Future Fuel Cell and Internal Combustion Engine Automobile Technologies: A...

396

Multi-building microgrids for a distributed energy future in...  

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

Multi-building microgrids for a distributed energy future in Portugal Title Multi-building microgrids for a distributed energy future in Portugal Publication Type Conference...

397

NETL: News Release - FutureGen Project Launched  

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

2005 FutureGen Project Launched Government, Industry Agree to Build Zero-Emissions Power Plant of the Future WASHINGTON, DC - Secretary of Energy Samuel Bodman today announced...

398

Update on Blue Ribbon Commission for America's Nuclear Future...  

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

Nuclear Future Update on Blue Ribbon Commission for America's Nuclear Future BRC-SEAB-October-12%202011.pdf More Documents & Publications Blue Ribbon Commission on America's...

399

Increase in IO Bandwidth to Enhance Future Understanding of Climate...  

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

Increase in IO Bandwidth to Enhance Future Understanding of Climate Change Increase in IO Bandwidth to Enhance Future Understanding of Climate Change August 6, 2009...

400

Status and Future of TRANSCOM | Department of Energy  

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

Program Status Upcoming Changes Glimpse at Future Options DOE Commitments Status and Future of TRANSCOM More Documents & Publications Department of Energy Office of Science...

Note: This page contains sample records for the topic "wti futures curve" 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

FutureGen -- A Sequestration and Hydrogen Research Initiative...  

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

FutureGen -- A Sequestration and Hydrogen Research Initiative FutureGen -- A Sequestration and Hydrogen Research Initiative A fact sheet on the Integrated Sequestration and...

402

Future Power Systems 20: The Smart Enterprise, its Objective...  

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

0: The Smart Enterprise, its Objective and Forecasting. Future Power Systems 20: The Smart Enterprise, its Objective and Forecasting. Future Power Systems 20: The Smart Enterprise,...

403

Vision for the Future | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Vision for the Future Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs >...

404

NETL: Turbine Projects - Carbon Management (FutureGen)  

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

Carbon Management (FutureGen) Turbine Projects Carbon Management (FutureGen) Hydrogen Turbines new solicitation in FY05 DataFact Sheets...

405

Explicit solution by radicals, gonal maps and plane models of algebraic curves of genus 5 or 6  

Science Conference Proceedings (OSTI)

We give explicit computational algorithms to construct minimal degree (always =Keywords: Algebraic curves, Gonality, Plane models, Radical parametrisation

Michael Harrison

2013-04-01T23:59:59.000Z

406

Resources for the Future | Open Energy Information  

Open Energy Info (EERE)

Future Future Jump to: navigation, search Logo: Resources for the Future Name Resources for the Future Address 1616 P Street NW, Suite 600 Place Washington, DC Zip 20036 Region Northeast - NY NJ CT PA Area Number of employees 11-50 Phone number 202-328-5000 Website http://www.rff.org/Pages/defau Coordinates 38.909151°, -77.03757° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.909151,"lon":-77.03757,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

407

Capping of Water Wells for Future Use  

E-Print Network (OSTI)

Water wells that are not being used, but that might be needed in the future, can be sealed with a cap that covers the top of the well casing pipe to prevent unauthorized access and contamination of the well. This publication explains how to cap a well safely and securely.

Lesikar, Bruce J.; Mechell, Justin

2007-09-04T23:59:59.000Z

408

Oilseeds of the future part 3  

Science Conference Proceedings (OSTI)

The final collection of questionnaire responses in a series of three articles highlighting trait-modified oilseeds in the global R&D pipeline concludes with a look at work in safflower, soy, and sunflower. Catherine Watkins Oilseeds of the future part 3

409

Sustainability protects resources for future generations  

SciTech Connect

This publication by the National Renewable Energy Laboratory addresses the steps necessary to provide livable urban centers for future generations through sustainable development, or sustainability. To illustrate this concept, nonsustainable cities and sustainable cities are compared. Sustainable city projects for several major US cites are reviewed.

NONE

1995-04-01T23:59:59.000Z

410

Predicting Future Climate Using Algae Sedimentation  

Science Conference Proceedings (OSTI)

Biologists have shown that algae are the first to be implicated in climate changes and vice versa. The goal of this research effort is to predict the future climate using algae species living in a lake in the past. On performing age depth profile analysis ... Keywords: Marine Organisms, Algae Sedimentation, Climate, Extrapolation, Neural Networks, Regression Analysis, ID3

Jasdeep Natt; Ray Hashemi; Azita Bahrami; Mahmood Bahar; Nicholas Tyler; Jay Hodgson

2012-04-01T23:59:59.000Z

411

California's Future Tax System Alan J. Auerbach  

E-Print Network (OSTI)

California's Future Tax System Alan J. Auerbach University of California, Berkeley August 5, 2010 This is a revised version of a paper presented at a conference, "Too Big to Fail? Reforming California at the conference for their comments and suggestions. #12;I. Introduction California's fiscal problems go well

Sadoulet, Elisabeth

412

Three possible futures for persuasive technology  

Science Conference Proceedings (OSTI)

I will share three possible paths that persuasive technologies might take in the coming years: MixMasters, Swishers, and MegaMonkeys. These speculative futures may help us reevaluate our methods for research and design. Even if my three scenarios never ...

BJ Fogg

2009-04-01T23:59:59.000Z

413

Future trends in oil and gas visualization  

Science Conference Proceedings (OSTI)

The question that this panel wishes to explore is: What are the future visualization trends and requirements for the oil and gas industry to efficiently handle and explore the ever-increasing volume and variety of available data?It has been proven many ...

Francine Evans; William Volz; Geoffrey Dorn; Bernd Fröhlich; David M Roberts

2002-10-01T23:59:59.000Z

414

Energy Implications of Alternative Water Futures  

E-Print Network (OSTI)

Energy Implications of Alternative Water Futures First Western Forum on Energy & Water water, energy, and GHG emissions. Water-related energy use is expected to rise. Conservation canWaterUse(MAF) Historical Use More Resource Intensive Less Resource Intensive Current Trends #12;Water and Energy Link

Keller, Arturo A.

415

Future Inspection of Overhead Transmission Lines  

Science Conference Proceedings (OSTI)

This report documents scenarios and technologies that can be applied in the future for the inspection of transmission lines. Scenarios describe the utilization of a range of concepts, including distributed sensors, unmanned airborne vehicles, RF communication, and robotics. An approach to performing demonstration projects using currently available technologies is provided and will be implemented in the following phases of the project.

2008-06-23T23:59:59.000Z

416

Scenarios for a Clean Energy Future ACKNOWLEDGMENTS  

E-Print Network (OSTI)

was provided by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE of Policy). Additional funding from the U.S. Environmental Protection Agency's Office of AtmosphericScenarios for a Clean Energy Future xxiii ACKNOWLEDGMENTS Primary funding for this report

417

SOLAR ENERGY AND OUR ELECTRICITY FUTURE  

E-Print Network (OSTI)

SOLAR ENERGY AND OUR ELECTRICITY FUTURE Sandia is a multiprogram laboratory operated by Sandia Solar Power (CSP) #12;Solar Energy Fun Facts More energy from sunlight strikes the Earth in one hour Solar energy is the only long-term option capable of meeting the energy (electricity and transportation

418

HVDC transmission: a path to the future?  

Science Conference Proceedings (OSTI)

Direct current transmission has been the poor stepchild of the U.S. electric industry. Although early-generation plants were based on DC technology, it was soon deemed uneconomical to transmit electricity over long distances, but it now appears poised for a change. Both the increasing technical potential and changing economics of HVDC lines promise a growing role in the future. (author)

Teichler, Stephen L.; Levitine, Ilia

2010-05-15T23:59:59.000Z

419

Transportation Energy: Supply, Demand and the Future  

E-Print Network (OSTI)

Transportation Energy: Supply, Demand and the Future http://www.uwm.edu/Dept/CUTS//2050/energy05.pdf Edward Beimborn Center for Urban Transportation Studies University of Wisconsin-Milwaukee Presentation to the District IV Conference Institute of Transportation Engineers June, 2005, updated September

Saldin, Dilano

420

Hanford defense mission: Past, present and future  

SciTech Connect

This paper describes the origin of Hanford, and its role in the Manhattan Project, its current role, and what is seen for Hanford in the future. Emphasis is on Hanford's defense mission. However, Hanford is a national resource in a number of areas and some of these are mentioned as well.

Munson, L.F.

1986-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

LIHD biofuels: toward a sustainable future  

E-Print Network (OSTI)

LIHD biofuels: toward a sustainable future 115 Linda Wallace, Department of Botany and Microbiology of America www.frontiersinecology.org Will biofuels help to wean the US off of oil, or at least off simple. First, we need to understand what is meant by the term "biofuel". All biofuels are organic

Palmer, Michael W.

422

Combined power plants -- Past, present, and future  

Science Conference Proceedings (OSTI)

The early history of combined power plants is described, together with the birth of the CCGT plant (the combined cycle gas turbine). Sustained CCGT development in the 1970s and 1980s, based on sound thermodynamic considerations, is outlined. Finally more recent developments and future prospects for the combined gas turbine/steam turbine combined plant are discussed.

Horlock, J.H. [Whittle Lab., Cambridge (United Kingdom)

1995-10-01T23:59:59.000Z

423

FUTURE POWER GRID INITIATIVE GridOPTICSTM  

E-Print Network (OSTI)

of individual software products November 2012 PNNL-SA-90162 Ian Gorton Pacific Northwest National Laboratory (509) 375-3850 ian.gorton@pnnl.gov ABOUT FPGI The Future Power Grid Initiative (FPGI) will deliver next National Laboratory's (PNNL) national electric grid research facility, the FPGI will advance the science

424

FUTURE POWER GRID INITIATIVE Intelligent Networked Sensors  

E-Print Network (OSTI)

2012 PNNL-SA-90017 Bora Akyol Pacific Northwest National Laboratory (509) 371-6682 bora@pnnl.gov Jereme Haack Pacific Northwest National Laboratory (509) 375-6350 jereme.haack@pnnl.gov ABOUT FPGI The Future Infrastructure Operations Center (EIOC), the Pacific Northwest National Laboratory's (PNNL) national electric

425

Kitchen of the future and applications  

Science Conference Proceedings (OSTI)

A kitchen is a place where food is prepared and education and communication activities relating to food are carried out. As it is a place that witnesses more activity when compared to the other parts of the house, there are many potential ubiquitous ... Keywords: computer-aided cooking, computer-augmented kitchen, home computing, kitchen of the future, remote instruction, ubiquitous computing

Itiro Siio; Reiko Hamada; Noyuri Mima

2007-07-01T23:59:59.000Z

426

Learning from the future of component repositories  

Science Conference Proceedings (OSTI)

An important aspect of the quality assurance of large component repositories is the logical coherence of component metadata. We argue that it is possible to identify certain classes of such problems by checking relevant properties of the possible future ... Keywords: component repository, quality assurance, speculative analysis

Pietro Abate; Roberto Di Cosmo; Ralf Treinen; Stefano Zacchiroli

2012-06-01T23:59:59.000Z

427

Research challenges towards the Future Internet  

Science Conference Proceedings (OSTI)

The convergence of computer-communication networks towards an all-IP integrated network has transformed Internet in a commercial commodity that has stimulated an un-precedent offer of novel communication services that are pushing the Internet architecture ... Keywords: Cognitive networks, Data and communication security, Future internet, Green networking, Internet architecture and protocols, Optical networks, System security, Wireless networks

Marco Conti; Song Chong; Serge Fdida; Weijia Jia; Holger Karl; Ying-Dar Lin; Petri Mähönen; Martin Maier; Refik Molva; Steve Uhlig; Moshe Zukerman

2011-12-01T23:59:59.000Z

428

Quantum Structures and their Future Diederik Aerts  

E-Print Network (OSTI)

Quantum Structures and their Future Importance Diederik Aerts FUND and CLEA, Brussels Free physical and mathematical base. The development of quantum mechanics proceeded in a rather haphazard manner, quantum mechanics, com- monly referred to as the `old quantum theory', did not even possess a coherent

Aerts, Diederik

429

Information systems strategy: Past, present, future?  

Science Conference Proceedings (OSTI)

The purpose of this paper is to contribute to the current discourse in the Strategic Information Systems (SIS) domain about the future and identity of SIS. We draw on Nelson's theorisation of the co-evolution of Physical and Social Technologies to redefine ... Keywords: Coevolution of physical and social technologies, Complex adaptive systems, Network dynamics, Strategic information systems domain

Yasmin Merali; Thanos Papadopoulos; Tanvee Nadkarni

2012-06-01T23:59:59.000Z

430

Design of high efficiency blowers for future aerosol applications  

E-Print Network (OSTI)

High efficiency air blowers to meet future portable aerosol sampling applications were designed, fabricated, and evaluated. A Centrifugal blower was designed to achieve a flow rate of 100 L/min (1.67 x 10^-3 m^3/s) and a pressure rise of WC " 4 (1000 PA). Commercial computational fluid dynamics (CFD) software, FLUENT 6.1.22, was used extensively throughout the entire design cycle. The machine, Reynolds number (Re) , was around 10^5 suggesting a turbulent flow field. Renormalization Group (RNG) �ºâ���µ turbulent model was used for FLUENT simulations. An existing design was scaled down to meet the design needs. Characteristic curves showing static pressure rise as a function of flow rate through the impeller were generated using FLUENT and these were validated through experiments. Experimentally measured efficiency (�·EXP) for the base-design was around 10%. This was attributed to the low efficiency of the D.C. motor used. CFD simulations, using the �ºâ���µ turbulent model and standard wall function approach, over-predicted the pressure rise values and the percentage error was large. Enhanced wall function under-predicted the pressure rise but gave better agreement (less than 6% error) with experimental results. CFD predicted a blower scaled 70% in planar direction (XZ) and 28% in axial direction (Y) and running at 19200 rpm (70xz_28y@19.2k) as the most appropriate choice. The pressure rise is 1021 Pa at the design flow rate of 100 L/min. FLUENT predicts an efficiency value based on static head (�·FLU) as 53.3%. Efficiency value based on measured static pressure rise value and the electrical energy input to the motor (�·EXP) is 27.4%. This is almost a 2X improvement over the value that one gets with the hand held vacuum system blower.

Chadha, Raman

2005-12-01T23:59:59.000Z

431

Expected Future Value Decomposition Based Bid Price Generation ...  

E-Print Network (OSTI)

EFV curves are used to define bid prices on bundles of resources directly, ... bid price is generated for each bundle, and a request to purchase the bundle is ...

432

The Substation of the Future: A Feasibility Study  

E-Print Network (OSTI)

The Substation of the Future: A Feasibility Study Final Project Report Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Substation of the Future Engineering Research Center (PSERC) research project T-38 titled "Substation of the Future: A Feasibility

433

Future of Hydrogen Fuel Flows Through New NIST Test ...  

Science Conference Proceedings (OSTI)

Future of Hydrogen Fuel Flows Through New NIST Test Facility. For Immediate Release: February 16, 2010. ...

2012-10-15T23:59:59.000Z

434

FORGING THE FUTURE OF THE DOE JGI  

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

FORGING FORGING THE FUTURE OF THE DOE JGI A 10-Year Strategic Vision U.S. Department of Energy Joint Genome Institute (JGI) September, 2012 OUR VISION The user facility pioneering functional genomics to solve the most relevant bioenergy and environmental problems A 10-Year Strategic Vision FORGING THE FUTURE OF THE DOE JGI U.S. Department of Energy Joint Genome Institute (JGI) September 2012 This document contains three sections: I. Introduction II. Background-Science Drivers III. Capabilities The Introduction provides a high level overview of the DOE Joint Genome Institute (DOE JGI) and how it plans to evolve as a genomic user facility to meet the scientific needs of energy and environmental research over the next decade. The Background-Science Driver section provides an assessment of the major scientific

435

ORNL Pond; Past, Present, and Future  

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

ORNL'S Pond: ORNL'S Pond: Past, Present, and Future Mike Ryon Summer 2008 All pictures: ORNL staff photos ORNL'S Pond: Past, Present, and Future * Pond was created in 1961. * Swans were added in 1964, as a result of campaign by physicist Frances Pleasonton. * First swans named Y and Not, lived more than 10 years, and sired more than 50 offspring. * Swans were viewed as "symbolic of Oak Ridge's tranquility and the natural beauty that surrounds the Laboratory." Transition of the Pond * Although a fixture on campus, ORNL Swan Pond was not integrated into the landscape. * As it was managed, pond invited use by large numbers of Canada geese. * Fish fauna of pond was dominated by non-native species. August 1965 Initially it looked like a farm pond. Transition of the Pond

436

Adaptive Comfort Model: Simulations & Future Directions  

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

Adaptive Comfort Model: Simulations & Future Directions Adaptive Comfort Model: Simulations & Future Directions Speaker(s): Richard de Dear Date: February 4, 2011 - 12:00pm Location: 90-4133 Seminar Host/Point of Contact: Philip Haves The last 20 years of thermal comfort have witnessed a shift away from the "static" approach (exemplified by the PMV/PPD model) towards the adaptive approach (exemplified by the adaptive models in ASHRAE's Standard 55 (2004, 2010) and the European Union's counterpart standard, EN15251 (2007). - the basis and derivation of the adaptive comfort model - adaptive comfort standards (ASHRAE 55 and EN15251) - new developments and directions (reporting back from the January 2011 ASHRAE Meeting of SSPC-55 in Las Vegas) - environmental variables other than dry bulb, in the adaptive model

437

Renewable Electricity Futures Study: Executive Summary  

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

Executive Summary Executive Summary NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Volume 2 PDF Volume 3 PDF Volume 1 PDF Volume 4 PDF Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Energy Laboratory Baldwin, S. U.S. Department of Energy DeMeo, E. Renewable Energy Consulting Services, Inc. Reilly, J.M. Massachusetts Institute of Technology Mai, T. National Renewable Energy Laboratory Arent, D. Joint Institute for Strategic Energy Analysis Porro, G. National Renewable Energy Laboratory Meshek, M. National Renewable Energy Laboratory Sandor, D. National Renewable Energy Laboratory Suggested Citations Renewable Electricity Futures Study (Entire Report)

438

Blue Ribbon Commission on America's Nuclear Future  

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

Blue Ribbon Commission on America's Nuclear Future Blue Ribbon Commission on America's Nuclear Future Agenda March 25 - 26, 2010 Willard Intercontinental Hotel, Washington, DC Thursday, March 25, 2010 Open Meeting - Grand Ballroom 11:00 a.m. Open meeting/review agenda Tim Frazier 11:10 a.m. Opening comments from Secretary Chu 11:25 a.m. Opening discussion - Co-chairs Honorable Lee Hamilton General Brent Scowcroft 11:35 a.m. Opening discussion - members Honorable Pete Domenici Honorable Chuck Hagel Honorable Phil Sharp Mr. Mark H. Ayers Honorable Vicky Bailey Dr. Albert Carnesale Ms. Susan Eisenhower Mr. Jonathan Lash Dr. Allison Macfarlane Dr. Richard A. Meserve Dr. Ernie Moniz Mr. John Rowe Dr. Per F. Peterson 12:30 p.m. Lunch

439

Future Energy Assets LP | Open Energy Information  

Open Energy Info (EERE)

LP LP Jump to: navigation, search Name Future Energy Assets LP Place Austin, Texas Zip 78701 Product String representation "Future Energy A ... S and in China." is too long. Coordinates 30.267605°, -97.742984° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":30.267605,"lon":-97.742984,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

440

Renewables in India : Status and Future Potential  

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

Renewables in India : Status and Future Potential Renewables in India : Status and Future Potential Speaker(s): Luis Fernandes Date: July 9, 2007 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose We analyse the status and the trends in the growth of renewables in India. We propose a methodology linking micro-simulation to macro-modelling to obtain technical and economic potential estimates for solar water heaters in residential and commercial and biomass gasifiers for thermal applications in industry. We assess the sustainability of renewables based on the criteria of life cycle cost, net energy ratio, resource constraint and greenhouse gas emissions. The renewable based technologies seem to be sustainable based on all criteria, except the high life cycle cost. In some cases e.g. in wind and biomass based systems land availability may

Note: This page contains sample records for the topic "wti futures curve" 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

MMCR Upgrades: Present Status and Future Plans  

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

MMCR Upgrades: Present Status and Future Plans MMCR Upgrades: Present Status and Future Plans K. B. Widener and A. S. Koontz Pacific Northwest National Laboratory Richland, Washington K. P. Moran and K. A. Clark National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado C. Chander STC xxxxxxxxx M. A. Miller and K. L. Johnson Brookhaven National Laboratory Upton, New York Abstract In September 2003, the Southern Great Plains (SGP) millimeter wave cloud radar (MMCR) was upgraded to a new digital signal processor that significantly increases the temporal resolution and the processing capability of the MMCR. The Barrow MMCR upgrade will be completed in early 2004. We will discuss the hardware and software C40 upgrade to the MMCRs at SGP and Barrow and the plans

442

Local energy conservation programs: past and future  

SciTech Connect

A review of local government energy programs examines specific programs adopted since 1975 which have been successful and identifies lessons from these experiences that will be helpful in the future. Successful programs have a positive effect on economic development and job creation, income equity, environmental and consumer goals, and political goals. The report focuses on three major areas of local programs: building codes, joint programs, and energy management. Other programs in the review are financing arrangements, retrofitting, transportation, etc. While direct benefits lack data for verification, the indirect benefits of aggressive local government programs have had significant value in establishing local programs at the laboratories for trying new ideas. Future local efforts need cooperation and support from the federal government. 56 references, 1 figure.

Lee, H.

1984-01-01T23:59:59.000Z

443

Economics of Current and Future Biofuels  

Science Conference Proceedings (OSTI)

This work presents detailed comparative analysis on the production economics of both current and future biofuels, including ethanol, biodiesel, and butanol. Our objectives include demonstrating the impact of key parameters on the overall process economics (e.g., plant capacity, raw material pricing, and yield) and comparing how next-generation technologies and fuels will differ from today's technologies. The commercialized processes and corresponding economics presented here include corn-based ethanol, sugarcane-based ethanol, and soy-based biodiesel. While actual full-scale economic data are available for these processes, they have also been modeled using detailed process simulation. For future biofuel technologies, detailed techno-economic data exist for cellulosic ethanol from both biochemical and thermochemical conversion. In addition, similar techno-economic models have been created for n-butanol production based on publicly available literature data. Key technical and economic challenges facing all of these biofuels are discussed.

Tao, L.; Aden, A.

2009-06-01T23:59:59.000Z

444

IGCC: Current Status and Future Potential  

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

Impact of Developing Technologies on the Impact of Developing Technologies on the Economics and Performance of Future IGCC Power Plants John Plunkett, Noblis David Gray, Noblis Charles White, Noblis Julianne Klara, NETL Copyright © 2008 Noblis, Inc. 2 Acknowledgement This work is sponsored by the U.S. Department of Energy, National Energy Technology Laboratory 3 Study Objective Starting with present-day baseline, evaluate improved IGCC performance and cost resulting from DOE-funded R&D over the next 18 years. Examine both with and without CO 2 capture. Study results will help to prioritize technology development based on relative impact. Results will also help to assess the impact of future potential CO 2 emissions restrictions. 4 Methodology * Use Aspen Plus simulator to provide model "transparency"

445

Parametric System Curves: Correlations Between Fan Pressure Rise and Flow for Large Commercial Buildings  

SciTech Connect

A substantial fraction of HVAC energy use in large commercial buildings is due to fan operation. Fan energy use depends in part on the relationship between system pressure drop and flow through the fan, which is commonly called a "system curve." As a step toward enabling better selections of air-handling system components and analyses of common energy efficiency measures such as duct static pressure reset and duct leakage sealing, this paper shows that a simple four-parameter physical model can be used to define system curves. Our model depends on the square of the fan flow, as is commonly considered. It also includes terms that account for linear-like flow resistances such as filters and coils, and for supply duct leakage when damper positions are fixed or are changed independently of static pressure or fan flow. Only two parameters are needed for systems with variable-position supply dampers (e.g., VAV box dampers modulating to control flow). For these systems, reducing or eliminating supply duct leakage does not change the system curve. The parametric system curve may be most useful when applied to field data. Non-linear techniques could be used to fit the curve to fan pressure rise and flow measurements over a range of operating conditions. During design, when measurements are unavailable, one could use duct design calculation tools instead to determine the coefficients.

Sherman, Max; Wray, Craig

2010-05-19T23:59:59.000Z

446

A FOURIER OPTICS METHOD FOR CALCULATING STELLAR OCCULTATION LIGHT CURVES BY OBJECTS WITH THIN ATMOSPHERES  

Science Conference Proceedings (OSTI)

A stellar occultation occurs when a solar system object passes in front of a distant star. The light curves resulting from stellar occultations can reveal many aspects of the obscuring object. For airless bodies, the diffraction light curve specifies the object's size, distance and, if several chords are observed, shape. Occultation light curves are especially sensitive to the presence of atmospheres; the refraction light curve is a function of the atmosphere's density, pressure, and temperature profiles. The goal of this paper is to develop a practical algorithm to model the simultaneous effects of diffraction and refraction for objects in which both phenomena are observable. The algorithm we present is flexible: it can be used to calculate light curves by objects with arbitrary shapes and arbitrary atmospheres (including the presence of opacity sources such as hazes), provided that the atmosphere can be represented by a thin screen with a phase delay and an opacity defined at each location in the screen. Because the algorithm is limited at present to thin atmospheres (in which rays from a star are bent but undergo virtually no translation as they pass through an atmosphere), the gas giants, Earth, Mars, and Venus are not treated. Examples of stellar occultations are presented for round or irregularly shaped objects having thin atmospheres of various column densities.

Young, E. F., E-mail: efy@boulder.swri.edu [Southwest Research Institute, Department of Space Studies, Boulder, CO 80302 (United States)

2012-08-15T23:59:59.000Z

447

KEPLER ECLIPSING BINARY STARS. III. CLASSIFICATION OF KEPLER ECLIPSING BINARY LIGHT CURVES WITH LOCALLY LINEAR EMBEDDING  

Science Conference Proceedings (OSTI)

We present an automated classification of 2165 Kepler eclipsing binary (EB) light curves that accompanied the second Kepler data release. The light curves are classified using locally linear embedding, a general nonlinear dimensionality reduction tool, into morphology types (detached, semi-detached, overcontact, ellipsoidal). The method, related to a more widely used principal component analysis, produces a lower-dimensional representation of the input data while preserving local geometry and, consequently, the similarity between neighboring data points. We use this property to reduce the dimensionality in a series of steps to a one-dimensional manifold and classify light curves with a single parameter that is a measure of 'detachedness' of the system. This fully automated classification correlates well with the manual determination of morphology from the data release, and also efficiently highlights any misclassified objects. Once a lower-dimensional projection space is defined, the classification of additional light curves runs in a negligible time and the method can therefore be used as a fully automated classifier in pipeline structures. The classifier forms a tier of the Kepler EB pipeline that pre-processes light curves for the artificial intelligence based parameter estimator.

Matijevic, Gal [Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana (Slovenia); Prsa, Andrej [Department of Astronomy and Astrophysics, Villanova University, 800 E Lancaster Ave, Villanova, PA 19085 (United States); Orosz, Jerome A.; Welsh, William F. [Department of Astronomy, San Diego State University, 5500 Campanile Dr., San Diego, CA 92182 (United States); Bloemen, Steven [Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200 D, B-3001 Leuven (Belgium); Barclay, Thomas, E-mail: gal.matijevic@fmf.uni-lj.si, E-mail: andrej.prsa@villanova.edu [NASA Ames Research Center/BAER Institute, Moffett Field, CA 94035 (United States)

2012-05-15T23:59:59.000Z

448

Future of the simulation industry, panel: the future of the simulation industry  

Science Conference Proceedings (OSTI)

Seven panelists representing a wide area of simulation interest address the future of the simulation industry. The panelists raise a host of issues. But, they also offer solutions addressing the issues that they raise.

Jerry Banks; Joseph C. Hugan; Peter Lendermann; Charles McLean; Ernest H. Page; C. Dennis Pegden; Onur Ulgen; James R. Wilson

2003-12-01T23:59:59.000Z

449

Space reactors - past, present, and future  

SciTech Connect

In the 1990s and beyond, advanced-design nuclear reactors could represent the prime source of both space power and propulsion. Many sophisticated military and civilian space missions of the future will require first kilowatt and then megawatt levels of power. This paper reviews key technology developments that accompanied past US space nuclear power development efforts, describes on-going programs, and then explores reactor technologies that will satisfy megawatt power level needs and beyond.

Buden, D.; Angelo, J.

1983-01-01T23:59:59.000Z

450

Program on Technology Innovation: Future Control Centers  

Science Conference Proceedings (OSTI)

This project reviews the functions and architectures of control centers: their past, present, and likely future. The evolving changes in power system operational needs require a distributed control center that is decentralized, integrated, flexible, and open. Present-day control centers are moving in that direction with varying degrees of success. Technologies employed in today's control centers enabling them to be distributed are briefly reviewed. With the rise of the Internet age, the trend in informat...

2005-08-31T23:59:59.000Z

451

The Future of Electricity (and Gas) Regulation  

E-Print Network (OSTI)

is less than 20% of final energy consumption, even if other sectors managed to achieve a highly ambitious 10% renewables target, electricity would be required to acheive around a 35% renewable share to meet the overall target (see DUKES Table 1... analyses of how current and future policy can achieve this in the context of the UK. 3 Note climate change concern could be relatively greater than or less than actual climate change. 2 countries who operate within the context of EU energy...

Pollitt, Michael G.

452

New Electricity Technologies for a Sustainable Future  

E-Print Network (OSTI)

of the twentieth century relied upon the combustion of fossil fuels – initially coal and oil and now increasingly natural gas. The Brundtland Commission definition of sustainability requires that a sustainable electricity system must be able to meet current... needs without compromising the ability of future generations to meet their own needs (World Commission on Environment and Development, 1987). As such electricity systems based upon the depletion of finite fossil fuel reserves are fundamentally...

Jamasb, Tooraj; Nuttall, William J.; Pollitt, Michael G.

2006-03-14T23:59:59.000Z

453

Subroto talks about Indonesia`s future  

SciTech Connect

Dr. Subroto became Indonesia`s Minister of Mines and Energy in 1978, and was Secretary-General of OPEC from July 1988 to June 1994, the only person to ever serve two 3-year terms in that position. He is currently the Chairman of the Indonesian Institute of Energy Economics. PEI had the opportunity to interview Subroto about Indonesia`s future outlook in oil exploration and resource development.

Perdue, J.M.

1997-04-01T23:59:59.000Z

454

FIRST STEPS INTO AN ENERGY EFFECIENT FUTURE  

SciTech Connect

Red Lake Band of Chippewa Indians proposes to develop a more sustainable, affordable and autonomous energy future for Tribal Members. The Band will develop the capacity to conduct energy audits, to implement energy efficiency measures in tribal homes, and to build more energy efficient housing. This will be done by providing direct classroom and on the job training for Tribal members to conduct the energy audits and the installation of insulation.

BARRETT, JANE L.

2009-04-02T23:59:59.000Z

455

Current and future industrial energy service characterizations  

DOE Green Energy (OSTI)

Current and future energy demands, end uses, and cost used to characterize typical applications and resultant services in the industrial sector of the United States and 15 selected states are examined. A review and evaluation of existing industrial energy data bases was undertaken to assess their potential for supporting SERI research on: (1) market suitability analysis, (2) market development, (3) end-use matching, (3) industrial applications case studies, and (4) identification of cost and performance goals for solar systems and typical information requirements for industrial energy end use. In reviewing existing industrial energy data bases, the level of detail, disaggregation, and primary sources of information were examined. The focus was on fuels and electric energy used for heat and power purchased by the manufacturing subsector and listed by 2-, 3-, and 4-digit SIC, primary fuel, and end use. Projections of state level energy prices to 1990 are developed using the energy intensity approach. The effects of federal and state industrial energy conservation programs on future industrial sector demands were assessed. Future end-use energy requirements were developed for each 4-digit SIC industry and were grouped as follows: (1) hot water, (2) steam (212 to 300/sup 0/F, each 100/sup 0/F interval from 300 to 1000/sup 0/F, and greater than 1000/sup 0/F), and (3) hot air (100/sup 0/F intervals). Volume I details the activities performed in this effort.

Krawiec, F.; Thomas, T.; Jackson, F.; Limaye, D.R.; Isser, S.; Karnofsky, K.; Davis, T.D.

1980-10-01T23:59:59.000Z

456

Future of the universe in modified gravitational theories: Approaching to the finite-time future singularity  

E-Print Network (OSTI)

We investigate the future evolution of the dark energy universe in modified gravities including $F(R)$ gravity, string-inspired scalar-Gauss-Bonnet and modified Gauss-Bonnet ones, and ideal fluid with the inhomogeneous equation of state (EoS). Modified Friedmann-Robertson-Walker (FRW) dynamics for all these theories may be presented in universal form by using the effective ideal fluid with an inhomogeneous EoS without specifying its explicit form. We construct several examples of the modified gravity which produces accelerating cosmologies ending at the finite-time future singularity of all four known types by applying the reconstruction program. Some scenarios to resolve the finite-time future singularity are presented. Among these scenarios, the most natural one is related with additional modification of the gravitational action in the early universe. In addition, late-time cosmology in the non-minimal Maxwell-Einstein theory is considered. We investigate the forms of the non-minimal gravitational coupling which generates the finite-time future singularities and the general conditions for this coupling in order that the finite-time future singularities cannot emerge. Furthermore, it is shown that the non-minimal gravitational coupling can remove the finite-time future singularities or make the singularity stronger (or weaker) in modified gravity.

Kazuharu Bamba; Shin'ichi Nojiri; Sergei D. Odintsov

2008-07-16T23:59:59.000Z

457

Chevron-notched toughness of materials with rising fracture resistance curves  

SciTech Connect

The effect of rising resistance curves on the fracture toughness determined from chevron-notched beam tests is estimated via a set of simple numerical calculations. It is shown that for materials with a rising resistance curve, the toughnesses determined by the peak load method and by the work of fracture method are both higher than the initiation toughness, and both depend on the sample size relative to the length over which the resistance curve increases. It is also found that the toughness based on the work of fracture is higher than that based on the peak load. Fracture toughness data obtained from tests of a nickel-alumina composite are discussed in light of the results of the numerical calculation.

Zehnder, A.T.; Hui, C.Y.; Rodeghiero, E.D. [Cornell Univ., Ithaca, NY (United States)

1997-05-01T23:59:59.000Z

458

Caloric curve for nuclear liquid-gas phase transition in relativistic mean-field hadronic model  

E-Print Network (OSTI)

The main thermodynamical properties of the nuclear liquid-gas phase transition were explored in the framework of the relativistic mean-field hadronic model in three statistical ensembles: canonical, grand canonical and isobaric. We have found that the liquid-gas phase transition, i.e., the first order phase transition which is defined by the plateau in the isotherms, cannot contain the plateau in the caloric curves in the canonical and microcanonical ensembles. The plateau in the isotherms is incompatible with the plateau in the caloric curves at fixed baryon density. Moreover, for the nuclear liquid-gas phase transition the caloric curve has a plateau only at fixed pressure or chemical potential. The results of the statistical multifragmentation models for the nuclear liquid-gas phase transition were reanalyzed. It was revealed that one class of statistical multifragmentation models do indeed predict the nuclear liquid-gas phase transition for the nuclear multifragmentation. However, there is another class o...

Parvan, A S

2011-01-01T23:59:59.000Z

459

Dyonic giant magnons in CP{sup 3}: Strings and curves at finite J  

Science Conference Proceedings (OSTI)

This paper studies giant magnons in AdS{sub 4}xCP{sup 3} using both the string sigma model and the algebraic curve. We complete the dictionary of solutions by finding the dyonic generalization of the CP{sup 1} string solution, which matches the 'small' giant magnon in the algebraic curve, and by pointing out that the solution recently constructed by the dressing method is the 'big' giant magnon. We then use the curve to compute finite-J corrections to all cases, which for the nondyonic cases always match the Arutyunov-Frolov-Zamaklar result. For the dyonic RP{sup 3} magnon we recover the S{sup 5} answer, but for the small and big giant magnons we obtain new corrections.

Abbott, Michael C.; Aniceto, Ines; Sax, Olof Ohlsson [Brown University, Providence, Rhode Island 02912 (United States); Uppsala University, Box 803, SE-75108 Uppsala (Sweden)

2009-07-15T23:59:59.000Z

460

Examining CCS deployment potential in China via application of an integrated CCS cost curve  

Science Conference Proceedings (OSTI)

Cost curves focusing on CO2 transport and storage have been previously published and used to help establish the large potential for CCS technologies to deploy in China. This paper examines the results from recent work to incorporate the costs of CO2 capture and compression within integrated cost curves that better reflect the complete costs and therefore possible value of CCS. Results show that significant potential exists for large-scale deployment of CCS at costs less than $70/tCO2. Mapping of the cost curve results confirms that the majority of existing CO2 point sources may be able to utilize CCS technologies, and that - except for many sources in southern China - onshore storage capacity appears accessible and sufficient for decades of large-scale deployment.

Dahowski, Robert T.; Davidson, Casie L.; Li, Xiaochun; Wei, Ning

2013-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "wti futures curve" 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

The impact of modern headlamps on the design of sag vertical curves  

E-Print Network (OSTI)

Incorporating safety in the design of a highway is one of the foremost duties of a design engineer. Design guidelines provide standards that help engineers include safety in the design of various geometric features. However, design guidelines are not frequently revised and do not accommodate for the frequent changes in vehicle design. One such example is the change in vehicle headlamps. These changes significantly impact the illuminance provided on the road and in turn the design formula. Roadway visibility is critical for nighttime driving. In the absence of roadway lighting, vehicle headlamps illuminate the road ahead of a vehicle. Sag vertical curve design depends on the available headlight sight distance provided by the 1 degree upward diverging headlamp beam. The sag curve design formulas were developed in the early 1940s when sealed beam headlamps were predominant. However, headlamps have changed significantly and modern headlamps project less light above the horizontal axis. In this research, the difference in illuminance provided by sealed beam headlamps and modern headlamps was examined. For the theoretical analysis, three different sag curves were analyzed. On these curves, about 26 percent reduction in illuminance was observed at a distance equal to the stopping sight distance when comparing sealed beam to modern headlamps. A change in the headlamp divergence angle from 1.0 degree to 0.85 degree will provide the required illuminance on the road when using modern headlamps. A field study was performed to validate the theoretical calculations. It was observed that for modern headlamps, a divergence angle less than 1 degree and greater than 0.5 degrees will provide illuminance values comparable to sealed beam headlamps. As a part of this research, a preliminary study, examining the impact of degraded headlamp lenses on the illuminance provided on sag vertical curves was conducted. A significant reduction in illuminance reaching the roadway on sag curves was observed, due to headlamp lens degradation.

Gogula, Madhuri

2005-05-01T23:59:59.000Z

462

Group-invariant soliton equations and bi-Hamiltonian geometric curve flows in Riemannian symmetric spaces  

E-Print Network (OSTI)

Universal bi-Hamiltonian hierarchies of group-invariant (multicomponent) soliton equations are derived from non-stretching geometric curve flows $\\map(t,x)$ in Riemannian symmetric spaces $M=G/H$, including compact semisimple Lie groups $M=K$ for $G=K\\times K$, $H={\\rm diag} G$. The derivation of these soliton hierarchies utilizes a moving parallel frame and connection 1-form along the curve flows, related to the Klein geometry of the Lie group $G\\supset H$ where $H$ is the local frame structure group. The soliton equations arise in explicit form from the induced flow on the frame components of the principal normal vector $N=\\covder{x}\\mapder{x}$ along each curve, and display invariance under the equivalence subgroup in $H$ that preserves the unit tangent vector $T=\\mapder{x}$ in the framing at any point $x$ on a curve. Their bi-Hamiltonian integrability structure is shown to be geometrically encoded in the Cartan structure equations for torsion and curvature of the parallel frame and its connection 1-form in the tangent space $T_\\map M$ of the curve flow. The hierarchies include group-invariant versions of sine-Gordon (SG) and modified Korteweg-de Vries (mKdV) soliton equations that are found to be universally given by curve flows describing non-stretching wave maps and mKdV analogs of non-stretching Schrodinger maps on $G/H$. These results provide a geometric interpretation and explicit bi-Hamiltonian formulation for many known multicomponent soliton equations. Moreover, all examples of group-invariant (multicomponent) soliton equations given by the present geometric framework can be constructed in an explicit fashion based on Cartan's classification of symmetric spaces.

Stephen C. Anco

2007-03-21T23:59:59.000Z

463

The high-energy gamma-ray light curve of PSR B1259 -63  

E-Print Network (OSTI)

The high-energy gamma-ray light curve of the binary system PSR B1259 -63, is computed using the approach that successfully predicted the spectrum at periastron. The simultaneous INTEGRAL and H.E.S.S. spectra taken 16 days after periastron currently permit both a model with dominant radiative losses, high pulsar wind Lorentz factor and modest efficiency as well as one with dominant adiabatic losses, a slower wind and higher efficiency. In this paper we shown how the long-term light curve may help to lift this degeneracy.

J. G. Kirk; Lewis Ball; S. Johnston

2005-09-30T23:59:59.000Z

464

Can precessing jets explain the light curves of Gamma-ray Bursts?  

E-Print Network (OSTI)

We present a phenomenological model to explain the light curves of gamma-ray bursts. In the model a black hole is orbited by a precessing accretion disc which is fed by a neutron star. Gamma-rays are produced in a highly collimated beam via the Blandford-Znajek mechanism. The gamma-ray beam sweeps through space due to the precession of the slaved accretion disc. The light curve expected from such a precessing luminosity cone can explain the complex temporal behavior of observed bright gamma-ray bursts.

Simon Portegies Zwart; Chang-Hwan Lee; Hyun Kyu Lee

1998-08-19T23:59:59.000Z

465

Curved Spacetime Geometry for Strings and Affine Non-compact Algebras  

E-Print Network (OSTI)

Based on lectures delivered at (1) the AMS meeting at USC, Nov. 1992 (2) Conference on Quantum Aspects of Black Holes, ITP, UC- Santa %Barbara, %%June 1993. (3) 25th Summer Institute, Ecole Normale Superieure, % Paris, Aug. 1992. To appear in "Interface Between Mathematics and Physics", Ed. S.-T. Yau. 1--Itroduction to String Theory in Curved Spacetime 2--G/H Coset Conformal Field Theory and String Theory 3--Time, Space and Classification of Non-Compact Cosets 4--Heterotic Strings in Curved Spacetime as gauged WZW Models 5--The Spacetime Manifold and the Geometry 6--Examples in 2D, 3D and 4D

Bars, Itzhak

1993-01-01T23:59:59.000Z

466

Essential Boundary Conditions with Straight C1 Finite Elements in Curved Domains  

SciTech Connect

The implementation of essential boundary conditions in C1 finite element analysis requires proper treatment of both the boundary conditions on second-order differentials of the solution and the curvature of the domain boundary. A method for the imposition of essential boundary conditions using straight elements (where the elements are not deformed to approximate a curved domain) is described. It is shown that pre-multiplication of the matrix equation by the local rotation matrix at each boundary node is not the optimal transformation. The uniquely optimal transformation is found, which does not take the form of a similarity transformation due to the non-orthogonality of the transformation to curved coordinates.

N.M. Ferraro, S.C. Jardin, X. Luo

2010-02-19T23:59:59.000Z

467

Future Perfect Partnering with Portuguese Environmental Protection Agency  

Open Energy Info (EERE)

Future Perfect Partnering with Portuguese Environmental Protection Agency Future Perfect Partnering with Portuguese Environmental Protection Agency (EPA). Aviation Sector EU Emissions Trading Scheme Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Future Perfect Partnering with Portuguese Environmental Protection Agency (EPA). Aviation Sector EU Emissions Trading Scheme Agency/Company /Organization: Future Perfect Sector: Climate Focus Area: GHG Inventory Development, Greenhouse Gas Topics: GHG inventory, Low emission development planning, -LEDS Resource Type: Case studies/examples, Training materials Website: www.gpstrategiesltd.com/divisions/future-perfect/ Language: English References: Future Perfect Partnering with Portuguese Environmental Protection Agency (EPA). Aviation Sector EU Emissions Trading Scheme[1]

468

Property:FuturePlans | Open Energy Information  

Open Energy Info (EERE)

FuturePlans FuturePlans Jump to: navigation, search Property Name FuturePlans Property Type Text Subproperties This property has the following 3 subproperties: C Coso Geothermal Area R Raft River Geothermal Area S Salt Wells Geothermal Area Pages using the property "FuturePlans" Showing 3 pages using this property. B Beowawe Hot Springs Geothermal Area + With the award of the $2 million USDOE ARRA grant and the industry match of $4 million, the 1.5 MW binary bottoming-cycle plant is on-line. Once the plant is fully operational it will provide nonproprietary data to the National Geothermal Data System (NGDS) and the Department of Energy Geothermal Technologies Program (DOE GTP) for a minimum of two years. C Chena Geothermal Area + In 2011, Chena Hot Springs was awarded a $900,000 grant from the Fairbanks North Star Borough (FNSB) for the development to help locate and develop high-temperature resources in the Borough. The total cost of the project that is not covered by the grant is $1.25 Million. (Frey, 2011) In the mid 2000's geochemical research indicated that there may be resources in the 200°F range. fP If such resources do exist, the plan will be to expand the capacity of Chena Power. This would allow for the expansion of the resort, and the potential to finally tie Chena into the local power grid. Tying into the grid would provide clean energy to Golden Valley Electric Association and FNSB residents. Chena currently has the required equipment for a 250 kW addition when additional heat is able to be recovered. (Frey, 2011) To help gain public support for geothermal power that utilizes low temperature resources, Chena Power has built a mobile 0.28 MW ORC (organic rankine cycle) system. Chena built the mobile ORC system with the help of United Technologies (UTC) to be an entirely mobile and self contained unit by mounting the ORC system on two 45 foot step deck trailers. The two trailers are placed side by side when operational. Chena Power is currently continuing to deploy the mobile unit state to state to extract energy from the waste water that is rejected from an oil well.

469

The RERTR Program: Past, present and future  

Science Conference Proceedings (OSTI)

The past, present and future of the Reduced Enrichment for Research and Test Reactor (RERTR) Program are discussed with an emphasis on some of the reactor physics and thermal-hydraulics codes and modelling required to accommodate research and test reactor analysis, and some of the development work still in progress is described. Some comparisons with physical measurements and Monte Carlo are provided. The efforts in fuels development and the experimental support are summarized. The accomplishments in joint study programs and the transfer of technology are high lighted. The joint study with the Russian reduced enrichment program presents many new challenges.

Woodruff, W.L.; Travelli, A.; Matos, J.E.; Snelgrove, J.L.

1994-03-01T23:59:59.000Z

470

The Lederman Science Center: Past, Present, Future  

Science Conference Proceedings (OSTI)

For 30 years, Fermilab has offered K-12 education programs, building bridges between the Lab and the community. The Lederman Science Center is our home. We host field trips and tours, visit schools, offer classes and professional development workshops, host special events, support internships and have a strong web presence. We develop programs based on identified needs, offer programs with peer-leaders and improve programs from participant feedback. For some we create interest; for others we build understanding and develop relationships, engaging participants in scientific exploration. We explain how we created the Center, its programs, and what the future holds.

Bardeen, Marjorie G.; /Fermilab

2011-11-01T23:59:59.000Z

471

CMB Optical Depth Measurements: Past, Present, Future  

E-Print Network (OSTI)

The polarization of the cosmic microwave background (CMB) is encoded with exactly the same cosmic information as the CMB's temperature anistropy. However, polarization has the additional promise of accurately probing the reionization history of the universe and potentially constraining, or detecting, the primordial background of gravitational waves produced by inflation. We demonstrate that these two CMB polarization goals are mutually compatible. A polarimeter optimized to detect the inflationary gravitational wave background signature in the polarization of the CMB is well situated to detect the signatures of realistic first-light scenarios. We also discuss current results and prospects for future CMB polarization experiments.

Brian Keating; Nathan Miller

2005-08-11T23:59:59.000Z

472

Greenhouse of the future. Final report  

Science Conference Proceedings (OSTI)

This greenhouse of the future is located at the Center for Regenerative Studies (CRS) at Cal Poly Pomona. The building design was driven by desired environmental conditions. The primary objective was to keep the interior space warm during winter for the breeding of fish and other greenhouse activities, especially in the winter. To do this, a highly insulating envelope was needed. Straw bales provide excellent insulation with an R-value of approximately 50 and also help solve the environmental problems associated with this agricultural waste product. A summary of the construction progress, construction costs and operating costs are included.

Cavin, B. III

1998-07-03T23:59:59.000Z

473

Future contingencies and photovoltaic system worth  

DOE Green Energy (OSTI)

The value of dispersed photovoltaic systems connected to the utility grid has been calculated using the General Electric Optimized Generation Planning program. The 1986 to 2001 time period was used for this study. Photovoltaic systems were dynamically integrated, up to 5% total capacity, into 9 NERC based regions under a range of future fuel and economic contingencies. Value was determined by the change in revenue requirements due to the photovoltaic additions. Displacement of high cost fuel was paramount to value, while capacity displacement was highly variable and dependent upon regional fuel mix.

Jones, G. J.; Thomas, M. G.; Bonk, G. J.

1982-01-01T23:59:59.000Z

474

Future nuclear fuel cycles: prospects and challenges  

Science Conference Proceedings (OSTI)

Solvent extraction has played, from the early steps, a major role in the development of nuclear fuel cycle technologies, both in the front end and back end. Today's stakes in the field of energy enhance further than before the need for a sustainable management of nuclear materials. Recycling actinides appears as a main guideline, as much for saving resources as for minimizing the final waste impact, and many options can be considered. Strengthened by the important and outstanding performance of recent PUREX processing plants, solvent-extraction processes seem a privileged route to meet the new and challenging requirements of sustainable future nuclear systems. (author)

Boullis, Bernard [Commissariat a l'Energie Atomique, Direction de l'Energie Nucleaire, Centre de Saclay, 91191, Gif-sur-Yvette cedex (France)

2008-07-01T23:59:59.000Z

475

Two gauge boson physics at future colliders  

SciTech Connect

Electroweak unification suggests that there should be WW and ZZ physics analogous to {gamma}{gamma} physics. Indeed, WW and ZZ collisions will provide an opportunity to search for the Higgs boson at future high energy colliders. Cross sections in the picobarn range are predicted for Higgs boson production at the proposed 40-TeV SSC. While other states may be produced by WW and ZZ collisions, it is the Higgs boson that looms as the most attractive objective. 31 refs., 5 figs.

Cahn, R.N.

1988-05-13T23:59:59.000Z

476

Superconducting RF Cavities Past, Present and Future  

E-Print Network (OSTI)

In the last two decades many laboratories around the world, notably Argonne (ANL), TJNAF (formerly CEBAF), CERN, DESY and KEK, decided to develop the technology of superconducting (SC) accelerating cavities. The aim was either to increase the accelerator energy or to save electrical consumption or both. This technology has been used extensively in the operating machines showing good performances and strong reliability. At present, the technology using bulk niobium (Nb) or Nb coated on copper (Cu) is mature enough to be applied for many different applications, such as synchrotron light sources and spallation neutron drivers. Results, R&D work and future projects will be presented with emphasis on application to linear accelerators.

Chiaveri, Enrico

2003-01-01T23:59:59.000Z

477

A functional analysis of electrical load curve modelling for some households specific electricity end-uses  

E-Print Network (OSTI)

A functional analysis of electrical load curve modelling for some households specific electricity and the way electrical devices are used will evolve significantly. The energy consumption is likely of electrical devices; · integration of decentralized energy production and stocking (PV modules with battery

Paris-Sud XI, Université de

478

Guaranteed-quality anisotropic mesh generation for domains with curved boundaries  

Science Conference Proceedings (OSTI)

Anisotropic mesh generation is important for interpolation and numerical modeling. Recently, Labelle and Shewchuk proposed a two-dimensional guaranteed-quality anisotropic mesh generation algorithm called a Voronoi refinement algorithm. This algorithm ... Keywords: Anisotropic Voronoi diagram, Anisotropic mesh generation, Curved boundaries, Guaranteed-quality

Yusuke Yokosuka; Keiko Imai

2009-05-01T23:59:59.000Z

479

DIFFERENTIAL OPERATORS ON AN AFFINE CURVE S. P. SMITH and J. T. STAFFORD  

E-Print Network (OSTI)

DIFFERENTIAL OPERATORS ON AN AFFINE CURVE S. P. SMITH and J. T. STAFFORD [Received 11 November 1986, 16A33. Proc. London Math. Soc. (3) 56 (1988) 229-259. #12;230 S. P. SMITH AND J. T. STAFFORD 0. #12;232 S. P. SMITH AND J. T. STAFFORD Given the above description of J, one may alternatively define

Smith, S. Paul

480

Nonparametric inference in small data sets of spatially indexed curves with application to ionospheric trend determination  

Science Conference Proceedings (OSTI)

This paper is concerned with estimation and testing in data sets consisting of a small number (about 20-30) of curves observed at unevenly distributed spatial locations. Such data structures may be referred to as spatially indexed functional data. Motivated ... Keywords: Functional data, Ionosphere, Long-term trend, Nonparametric inference, Spatial statistics

Oleksandr Gromenko; Piotr Kokoszka

2013-03-01T23:59:59.000Z

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481

Application of the normalization data analysis technique for single specimen R-curve determination  

SciTech Connect

The authors conclude that the normalization technique for single specimen R-curve and J{sub IC} determination can be very effective. Much like EPD, this technique requires some user interpretation/judgement during data analysis and may be difficult to standardize or fully automate even with strict analysis rules.

Porr, W.C.; Mills, W.J.

1999-03-01T23:59:59.000Z

482

R-curve and subcritical crack growth behavior at elevated temperatures in coarse grain alumina  

SciTech Connect

The effect of temperature and subcritical crack growth on the R-curve of a 99.5% purity coarse grained alumina was studied using chevron-notched, short-bar specimens. Constant loading rate tests were used to measure toughness as a function of crack length and static load tests were used to measure subcritical crack growth as a function of time. It was found that the intrinsic toughness decreased monotonically from 20 to 1200 C while the bridging contribution to the R-curve remained relatively constant over this temperature range. The constant load tests at 700, 1000 and 1200 C showed that substantial subcritical crack growth occurs under static loading. Using the subcritical crack growth parameters derived from these static load tests, the effect of loading rate on R-curve measurement was predicted and compared to experiment. The predicted decrease in the magnitude of the R-curve with a decrease in over five orders of magnitude in loading rate was relatively small compared to experimental scatter.

Webb, J.E.; Jakus, K.; Ritter, J.E. [Univ. of Massachusetts, Amherst, MA (United States). Dept. of Mechanical Engineering

1996-06-01T23:59:59.000Z

483

Use of precracked Charpy and smaller specimens to establish the master curve  

SciTech Connect

The current provisions used in the U.S. Code of Federal Regulations for the determination of the fracture toughness of reactor pressure vessel steels employs an assumption that there is a direct correlation between K{sub Ic} lower-bound toughness and the Charpy V-notch transition curve. Such correlations are subject to scatter from both approaches which weakens the reliability of fracture mechanics-based analyses. In this study, precracked Charpy and smaller size specimens are used in three-point static bend testing to develop fracture mechanics based K{sub k} values. The testing is performed under carefully controlled conditions such that the values can be used to predict the fracture toughness performance of large specimens. The concept of a universal transition curve (master curve) is applied. Data scatter that is characteristic of commercial grade steels and their weldments is handled by Weibull statistical modeling. The master curve is developed to describe the median K{sub Jc} fracture toughness for 1T size compact specimens. Size effects are modeled using weakest-link theory and are studied for different specimen geometries. It is shown that precracked Charpy specimens when tested within their confined validity limits follow the weakest-link size-adjustment trend and predict the fracture toughness of larger specimens. Specimens of smaller than Charpy sizes (5 mm thick) exhibit some disparities in results relative to weakest-link size adjustment prediction suggesting that application of such adjustment to very small specimens may have some limitations.

Sokolov, M.A.; McCabe, D.E.; Nanstad, R.K. [Oak Ridge National Lab., TN (United States); Davidov, Y.A. [Institue of Metal Science, Sofia (Bulgaria)

1997-12-01T23:59:59.000Z

484

The Challenge of Introducing Curved Material Geometries into Structured High-Order Finite-Difference Methods  

E-Print Network (OSTI)

) that maps the desired non-uniform grid in the z-domain to a uniform grid on the ¯z-domain where previously developed for uniform grids [1­4]. The transmission-line equations in the ¯z-domain--also called to incorporate curved material boundaries--or, equivalently, structured nonorthogonal grids--into high

485

Energy Policy 33 (2005) 18251832 Letting the (energy) Gini out of the bottle: Lorenz curves of  

E-Print Network (OSTI)

Energy Policy 33 (2005) 1825­1832 Letting the (energy) Gini out of the bottle: Lorenz curves of cumulative electricity consumption and Gini coefficients as metrics of energy distribution and equity Arne Jacobsona , Anita D. Milmana , Daniel M. Kammena,b, * a Energy and Resources Group, University of California

Kammen, Daniel M.

486

Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths  

E-Print Network (OSTI)

Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths corrected.S.A. Abstract The calculation of a minimum free energy path can be considered as a two-point boundary value box solvers. The second paragraph of Section 1 is corrected. Because free energy is defined in terms

Skeel, Robert

487

On the Distribution of the Subset Sum Pseudorandom Number Generator on Elliptic Curves  

E-Print Network (OSTI)

Given a prime $p$, an elliptic curve $\\E/\\F_p$ over the finite field $\\F_p$ of $p$ elements and a binary \\lrs\\ $\\(u(n)\\)_{n =1}^\\infty$ of order~$r$, we study the distribution of the sequence of points

Blackburn, Simon R; Shparlinski, Igor E

2011-01-01T23:59:59.000Z

488

Site Index Curves for Direct-Seeded Loblolly and Longleaf Pines in Louisiana  

E-Print Network (OSTI)

Site Index Curves for Direct-Seeded Loblolly and Longleaf Pines in Louisiana Quang V. Cao, School index equations were developedfor direct-seeded loblollypine (Pinus taeda L.) and longleaf pine (Pinus- term height projection for direct-seeded loblolly and longleaf pine stands in Louisiana. South. J. Appl

Cao, Quang V.

489

Levi-Civita regularization and geodesic flows for the `curved' Kepler problem  

E-Print Network (OSTI)

We introduce the regularization Levi-Civita parameter for the `curved Kepler', i.e., motion under the `Kepler-Coulomb' potential in a configuration space with any constant curvature and metric of any signature type. Consistent use of this parameter allows to solve the problem of motion (orbit shape and time evolution along the orbit), thereby extending the use of the Levi-Civita parameter beyond the usual Kepler problem in a flat Euclidean configuration space. A `universal' description, where all relations are applicable to the motions in any space and with any energy follow from our approach, with no need to discuss separately the cases where the configuration space is flat or where energy vanishes. We also discuss the connection of this `curved Kepler' problem with a geodesic flow. The well known results by Moser, Osipov and Belbruno are shown to hold essentially unchanged beyond the flat Euclidean configuration space. `Curved' Kepler motions with a fixed value of the constant of motion $\\sigma:=-(2E - \\kappa_1\\kappa_2 J^2)$ on any curved configuration space with constant curvature $\\kappa_1$ and metric of signature type $\\kappa_2$ can be identified with the geodesic flow on a space with curvature $\\sigma$ and metric of the same signature type.

Leonor Garcia-Gutierrez; Mariano Santander

2007-07-25T23:59:59.000Z

490

The modular curve as the space of stability conditions of a CY3 algebra  

E-Print Network (OSTI)

We prove that a connected component of the space of stability conditions of a CY3 triangulated category generated by an A_2 collection of 3-spherical objects is isomorphic to the universal cover of the C^*-bundle of non-zero holomorphic differentials on the moduli space of elliptic curves.

Sutherland, Tom

2011-01-01T23:59:59.000Z

491

Combination of dichotomizers for maximizing the partial area under the ROC curve  

Science Conference Proceedings (OSTI)

In recent years, classifier combination has been of great interest for the pattern recognition community as a method to improve classification performance. The most part of combination rules are based on maximizing the accuracy and, only recently, the ... Keywords: ROC curve, classifiers combination, partial AUC

Maria Teresa Ricamato; Francesco Tortorella

2010-08-01T23:59:59.000Z

492

ANN-based GA for generating the sizing curve of stand-alone photovoltaic systems  

Science Conference Proceedings (OSTI)

Recent advances in artificial intelligence techniques have allowed the application of such technologies in real engineering problems. In this paper, an artificial neural network-based genetic algorithm (ANN-GA) model was developed for generating the ... Keywords: ANN, ANN-GA, GA, Prediction, Sizing curve, Stand-alone PV system

Adel Mellit

2010-05-01T23:59:59.000Z

493

Comment on "Weak instrument robust tests in GMM and the new Keynesian Phillips curve"  

E-Print Network (OSTI)

Comment on "Weak instrument robust tests in GMM and the new Keynesian Phillips curve", Frank Kleibergen, Sophocles Mavroeidis. Journal of Business and Economic Statistics. July 1, 2009, 27(3): 293-311. doi:10.1198/jbes.2009.08280.

Mikusheva, Anna

494

Optimal cooperative collision avoidance between multiple robots based on Bernstein-Bézier curves  

Science Conference Proceedings (OSTI)

In this paper a new cooperative collision-avoidance method for multiple, nonholonomic robots based on Bernstein-Bezier curves is presented. The main contribution focuses on an optimal, cooperative, collision avoidance for a multi-robot system where the ... Keywords: Collision avoidance, Mobile robots, Path planning

Igor Škrjanc; Gregor Klan?ar

2010-01-01T23:59:59.000Z

495

Effect of aging on the toughness of human cortical bone: evaluation by R-curves  

E-Print Network (OSTI)

Effect of aging on the toughness of human cortical bone: evaluation by R-curves R.K. Nallaa,b , J online 27 October 2004 Abstract Age-related deterioration of the fracture properties of bone, coupled, and hence, an understanding of how its fracture properties degrade with age is essential. The present study

Ritchie, Robert

496

Order Parameters for Detecting Target Curves in Images: When Does High Level Knowledge Help?  

Science Conference Proceedings (OSTI)

Many problems in vision can be formulated as Bayesian inference. It is important to determine the accuracy of these inferences and how they depend on the problem domain. In this paper, we provide a theoretical framework based on Bayesian decision theory ... Keywords: Bayesian inference, curve detection, minimax entropy, order parameters

A. L. Yuille; James M. Coughlan; Yingnian Wu; Song Chun Zhu

2001-01-01T23:59:59.000Z

497

THE ULTIMATE LIGHT CURVE OF SN 1998bw/GRB 980425  

SciTech Connect

We present multicolor light curves of SN 1998bw which appeared in ESO184-G82 in close temporal and spatial association with GRB 980425. The light curves are based on observations conducted at Cerro Tololo Inter-American Observatory (CTIO) and data from the literature. The CTIO photometry reaches {approx}86 days after the gamma-ray burst (GRB) in U and {approx}160 days after the GRB in BV(RI){sub C}. The observations in U extend the previously known coverage by about 30 days and determine the slope of the early exponential tail. We calibrate a large set of local standards in common with those of previous studies and use them to transform published observations of the supernova (SN) to our realization of the standard photometric system. We show that the photometry from different sources merges smoothly and we provide a unified set of 300 observations of the SN in five bands. Using the extensive set of spectra in the public domain, we compute extinction and K-corrections and build quasi-bolometric unreddened rest-frame light curves. We provide low-degree piecewise spline fits to these light curves with daily sampling. They reach {approx}86 rest-frame days after the GRB with U-band coverage and {approx}498 rest-frame days after the GRB without U.

Clocchiatti, Alejandro [Departamento de Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile, Casilla 306, Santiago 22 (Chile); Suntzeff, Nicholas B. [Department of Physics and Astronomy, Mitchell Institute for Fundamental Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States); Covarrubias, Ricardo [Australian Astronomical Observatory, P.O. Box 296, Epping, NSW 1710 (Australia); Candia, Pablo, E-mail: aclocchi@astro.puc.cl, E-mail: nsuntzeff@tamu.edu, E-mail: ricardo@aao.gov.au, E-mail: pcandia@gemini.edu [Gemini Observatory, Casilla 603, La Serena (Chile)

2011-05-15T23:59:59.000Z

498

The effect of measurement error on the dose-response curve  

Science Conference Proceedings (OSTI)

In epidemiological studies for an environmental risk assessment, doses are often observed with errors. However, they have received little attention in data analysis. This paper studies the effect of measurement errors on the observed dose-response curve. Under the assumptions of the monotone likelihood ratio on errors and a monotone increasing dose-response curve, it is verified that the slope of the observed dose-response curve is likely to be gentler than the true one. The observed variance of responses are not so homogeneous as to be expected under models without errors. The estimation of parameters in a hockey-stick type dose-response curve with a threshold is considered on line of the maximum likelihood method for a functional relationship model. Numerical examples adaptable to the data in a 1986 study of the effect of air pollution that was conducted in Japan are also presented. The proposed model is proved to be suitable to the data in the example cited in this paper.

Yoshimura, I. (Nagoya Univ. (Japan))

1990-07-01T23:59:59.000Z

499

A stochastic index flow model of flow duration curves Attilio Castellarin  

E-Print Network (OSTI)

2004; published 10 March 2004. [1] Annual flow duration curves (AFDCs) are used increasingly because for the median AFDC, they enable one to assign return periods to individual AFDCs, and they offer opportunities for developing a generalized stochastic model of daily streamflow. Previous stochastic models of FDCs and AFDCs

Vogel, Richard M.

500

Factors Influencing Community Health Centers' Efficiency: A Latent Growth Curve Modeling Approach  

Science Conference Proceedings (OSTI)

The objective of study is to examine factors affecting the variation in technical and cost efficiency of community health centers (CHCs). A panel study design was formulated to examine the relationships among the contextual, organizational structural, ... Keywords: Community health centers, Cost efficiency, Growth curve modeling, Technical efficiency

Shriram Marathe; Thomas T. Wan; Jackie Zhang; Kevin Sherin

2007-10-01T23:59:59.000Z