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1

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.

2

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

3

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 ...

4

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 ...

5

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 ...

6

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

7

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 ...

8

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

9

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, ...

10

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, ...

11

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

12

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

13

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

14

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

15

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

16

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,

17

Vertical axis wind turbines  

DOE Patents (OSTI)

A vertical axis wind turbine is described. The wind turbine can include a top ring, a middle ring and a lower ring, wherein a plurality of vertical airfoils are disposed between the rings. For example, three vertical airfoils can be attached between the upper ring and the middle ring. In addition, three more vertical airfoils can be attached between the lower ring and the middle ring. When wind contacts the vertically arranged airfoils the rings begin to spin. By connecting the rings to a center pole which spins an alternator, electricity can be generated from wind.

Krivcov, Vladimir (Miass, RU); Krivospitski, Vladimir (Miass, RU); Maksimov, Vasili (Miass, RU); Halstead, Richard (Rohnert Park, CA); Grahov, Jurij (Miass, RU)

2011-03-08T23:59:59.000Z

18

Vertical axis wind turbine airfoil  

DOE Patents (OSTI)

A vertical axis wind turbine airfoil is described. The wind turbine airfoil can include a leading edge, a trailing edge, an upper curved surface, a lower curved surface, and a centerline running between the upper surface and the lower surface and from the leading edge to the trailing edge. The airfoil can be configured so that the distance between the centerline and the upper surface is the same as the distance between the centerline and the lower surface at all points along the length of the airfoil. A plurality of such airfoils can be included in a vertical axis wind turbine. These airfoils can be vertically disposed and can rotate about a vertical axis.

Krivcov, Vladimir; Krivospitski, Vladimir; Maksimov, Vasili; Halstead, Richard; Grahov, Jurij Vasiljevich

2012-12-18T23:59:59.000Z

19

Two-axis angular effector  

DOE Patents (OSTI)

A new class of coplanar two-axis angular effectors. These effectors combine a two-axis rotational joint analogous to a Cardan joint with linear actuators in a manner to produce a wider range of rotational motion about both axes defined by the joint. This new class of effectors also allows design of robotic manipulators having very high strength and efficiency. These effectors are particularly suited for remote operation in unknown surroundings, because of their extraordinary versatility. An immediate application is to the problems which arise in nuclear waste remediation.

Vaughn, Mark R. (Albuquerque, NM); Robinett, III, Rush D. (Tijeras, NM); Phelan, John R. (Albuquerque, NM); Van Zuiden, Don M. (Albuquerque, NM)

1997-01-21T23:59:59.000Z

20

AXI LLC | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » AXI LLC Jump to: navigation, search Name AXI LLC Place Quincy, Massachusetts Zip 02169 Sector Biofuels Product Aims to make commercially feasible strains of algae for fuel production Coordinates 42.2363996°, -71.0200613° 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":42.2363996,"lon":-71.0200613,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "left axis wti" 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

THIS PAGE INTENTIONALLY LEFT BLANK  

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

THIS PAGE INTENTIONALLY LEFT BLANK THIS PAGE INTENTIONALLY LEFT BLANK i U.S. DEPARTMENT OF ENERGY CRITICAL MATERIALS STRATEGY DECEMBER 2011 ii THIS PAGE INTENTIONALLY LEFT BLANK iii TABLE OF CONTENTS FOREWORD ........................................................................................................................................................... 1 ACKNOWLEDGEMENTS .......................................................................................................................................... 2 EXECUTIVE SUMMARY ........................................................................................................................................... 3 CHAPTER 1. INTRODUCTION .................................................................................................................................. 8

22

Helical-axis stellarator with helical windings  

SciTech Connect

The equilibrium and stability of the plasma in a stellarator with a helical geometric axis and with helical external fields are analyzed.

Mikhailov, M.I.; Pustovitov, V.D.

1981-10-05T23:59:59.000Z

23

Helical axis stellarator with noninterlocking planar coils  

DOE Patents (OSTI)

A helical axis stellarator using only noninterlocking planar, non-circular coils, generates magnetic fields having a magnetic well and large rotational transform with resultant large equilibrium beta.

Reiman, Allan (Princeton, NJ); Boozer, Allen H. (Rocky Hill, NJ)

1987-01-01T23:59:59.000Z

24

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

25

Dual Axis Radiographic Hydrodynamic Test Facility  

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

DARHT Facility: A critical component of stockpile stewardship DARHT Facility: A critical component of stockpile stewardship A new research frontier awaits! Our door is open and we thrive on mutually beneficial partnerships, collaborations that drive innovations and new technologies. April 12, 2012 Dominic Tafoya and Dave Honaberger prepare a refurbished DARHT (Dual Axis Radiographic Hydrotest Facility) 2nd axis accelerator cell for magnetic axis alignment measurements. Contact Group Leader Terry Priestley (505) 665-1330 Email Deputy Group Leader Tim Ferris (505) 665-2179 Email Hydrotests are critical in assessing nuclear weapons in nation's stockpile Dual Axis Radiographic Hydrodynamic Test facility 4:17 How DARHT Works The weapons programs at Los Alamos have one principal mission: ensure the safety, security, and effectiveness of nuclear weapons in our nation's

26

Vertical Axis Wind Turbine Foundation parameter study  

DOE Green Energy (OSTI)

The dynamic failure criterion governing the dimensions of prototype Vertical Axis Wind Turbine Foundations is treated as a variable parameter. The resulting change in foundation dimensions and costs is examined.

Lodde, P.F.

1980-07-01T23:59:59.000Z

27

Marketing Strategies for Horizontal Axis Washers  

Science Conference Proceedings (OSTI)

Horizontal axis washing machines provide superior washing quality and gentleness as well as reduced energy use. This EPRI guide describes how utilities can effectively engage the horizontal axis washing machine market and the strategic and load-related reasons they should be interested in doing so. The guide covers topics ranging from a detailed overview of the marketplace to specific tactical advice that offers practical insights for any utility considering entering this new market.

1997-04-21T23:59:59.000Z

28

Accessibility in 5-Axis Milling Environment  

E-Print Network (OSTI)

Using algorithms from computer graphics, namely hidden line and surface removal, techniques have been constructed to derive the 3-axis visible or millable set of a computer model from a given orientation or simulate and verify machining toolpaths. In this paper, an approach that reduces the accessibility problem of 5-axis milling using a flat end tool into a 3-axis accessibility problem is discussed. Using this approach, global detection of possible gouging into other parts, while a 5-axis flat end mill is in use, is made feasible and collisions can be avoided. Key Words: NURBs, accessibility, 5-axis machining. 1 Introduction Several methods are in use, when freeform computer models are realized using milling machines. Possibly the most common approach utilizes a ball end tool with three degrees of freedom, namely translation in x, y, and z [1, 2, 4, 5, 6, 7]. The ball end center of the tool follows an offset [8] to the model by the tool radius while the ball end surface is tangent to...

Gershon Elber

1997-01-01T23:59:59.000Z

29

Modular Off-Axis Fiber Optic Solar Concentrator  

interior lighting: Sunlight Direct, ... a Modular Off-Axis Fiber Optic Solar Concentrator, uses novel embodiments of an off-axis aspheric focusing system to achieve ...

30

Dual Axis Radiographic Hydrodynamic Test Facility, IG-0599 |...  

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

Administration Other Agencies You are here Home Dual Axis Radiographic Hydrodynamic Test Facility, IG-0599 Dual Axis Radiographic Hydrodynamic Test Facility, IG-0599 The Dual...

31

Axis Technologies Group Inc | Open Energy Information  

Open Energy Info (EERE)

Axis Technologies Group Inc Axis Technologies Group Inc Jump to: navigation, search Name Axis Technologies Group, Inc Place Lincoln, Nebraska Zip 68522 Product Designs, manufactures, and markets energy-saving and daylight harvesting electronic dimming ballasts for the commercial lighting industry. Coordinates 47.829403°, -118.419202° 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":47.829403,"lon":-118.419202,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

32

Enclosed, off-axis solar concentrator  

SciTech Connect

A solar concentrator including a housing having receiving wall, a reflecting wall and at least two end walls, the receiving, reflecting and end walls defining a three-dimensional volume having an inlet, wherein a vertical axis of the housing is generally perpendicular to the inlet, a receiver mounted on the receiving wall of the housing, the receiver including at least one photovoltaic cell, wherein a vertical axis of the receiver is disposed at a non-zero angle relative to the vertical axis of the housing, at least one clip disposed on the reflecting wall an optical element received within the three-dimensional volume, the optical element including at least one tab, the tab being engaged by the clip to align the optical element with the receiver, and a window received over the inlet to enclose the housing.

Benitez, Pablo; Grip, Robert E; Minano, Juan C; Narayanan, Authi A; Plesniak, Adam; Schwartz, Joel A

2013-11-26T23:59:59.000Z

33

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

34

On left and right model categories and left and right Bousfield localizations  

E-Print Network (OSTI)

We verify the existence of left Bousfield localizations and of enriched left Bousfield localizations, and we prove a collection of useful technical results characterizing certain fibrations of (enriched) left Bousfield ...

Barwick, Clark Edward

35

A low order model for vertical axis wind turbines  

E-Print Network (OSTI)

A new computational model for initial sizing and performance prediction of vertical axis wind turbines

Drela, Mark

36

High payload six-axis load sensor  

DOE Patents (OSTI)

A repairable high-payload six-axis load sensor includes a table, a base, and at least three shear-pin load transducers removably mounted between the table and the base. Removable mounting permits easy replacement of damaged shear pins. Preferably, the shear-pin load transducers are responsive to shear forces imparted along the two axes perpendicular to an axis of minimum sensitivity characteristic of the transducer. Responsive to an applied shear force, each shear-pin load transducer can produce an electrical signal proportional to the reaction force. The load sensor can further include a structure for receiving the proportional electrical signals and computing the applied load corresponding to the proportional electrical signals. The computed load can be expressed in terms of a three-dimensional XYZ Cartesian coordinate system.

Jansen, John F. (Knoxville, TN); Lind, Randall F. (Knoxville, TN)

2003-01-01T23:59:59.000Z

37

Left-over Windows Cause Window Clutter... But What Causes Left-over Windows?  

E-Print Network (OSTI)

Left-over Windows Cause Window Clutter... But What Causes Left-over Windows? Julie Wagner1 that they can return to later. However, users also struggle with window clutter, facing an increasing number of `left-over windows' that get in the way. Our goal is to understand how users create and cope with left

38

Vertical axis wind turbine with continuous blade angle adjustment  

E-Print Network (OSTI)

The author presents a concept for a vertical axis wind turbine that utilizes each blade's entire rotational cycle for power generation. Each blade has its own vertical axis of rotation and is constrained to rotate at the ...

Weiss, Samuel Bruce

2010-01-01T23:59:59.000Z

39

Theoretical tool movement required to diamond turn an off-axis paraboloid on axis  

SciTech Connect

High-quality, off-axis parabolic reflectors, required by the CTR and laser-fusion programs at Lawrence Livermore Laboratory (LLL) and other ERDA laboratories, are currently manufactured by hand. There are several drawbacks to this method, including lead times of up to a year, costs in excess of $75,000 for a small reflector, and unsatisfactory limits to the tolerances obtainable. This situation has led to a search for cheaper and more accurate methods of manufacturing off-axis paraboloids. An alternative method, turning the workpiece about its axis on a diamond-turning machine, is presented, and the equations describing the necessary tool movement are derived. A discussion of a particular case suggests that the proposed technique is feasible. (auth)

Thompson, D.C.

1975-12-19T23:59:59.000Z

40

This page is intentionally left blank.  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration/Electric Power Monthly June 2012 1 Executive Summary This page is intentionally left blank.

Note: This page contains sample records for the topic "left axis wti" 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

Horizontal-axis clothes washer market poised for expansion  

SciTech Connect

The availability of energy- and water-efficient horizontal-axis washing machines in the North American market is growing, as US and European manufacturers position for an expected long-term market shift toward horizontal-axis (H-axis) technology. Four of the five major producers of washing machines in the US are developing or considering new H-axis models. New entrants, including US-based Staber Industries and several European manufacturers, are also expected to compete in this market. The intensified interest in H-axis technology is partly driven by speculation that new US energy efficiency standards, to be proposed in 1996 and implemented in 1999, will effectively mandate H-axis machines. H-axis washers typically use one-third to two-thirds less energy, water, and detergent than vertical-axis machines. Some models also reduce the energy needed to dry the laundry, since their higher spin speeds extract more water than is typical with vertical-axis designs. H-axis washing machines are the focus of two broadly-based efforts to support coordinated research and incentive programs by electric, gas, and water utilities: The High-Efficiency Laundry Metering/Marketing Analysis (THELMA), and the Consortium for Energy Efficiency (CEE) High-Efficiency Clothes Washer Initiative. These efforts may help to pave the way for new types of marketing partnerships among utilities and other parties that could help to speed adoption of H-axis washers.

George, K.L.

1994-12-31T23:59:59.000Z

42

Two-axis tracking solar collector mechanism  

DOE Green Energy (OSTI)

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

Johnson, Kenneth C. (201 W. California Ave., #401, Sunnyvale, CA 94086)

1990-01-01T23:59:59.000Z

43

Two-axis tracking solar collector mechanism  

DOE Green Energy (OSTI)

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

Johnson, Kenneth C. (201 W. California Ave. #705, Sunnyvale, CA 94086)

1992-01-01T23:59:59.000Z

44

Two-axis tracking solar collector mechanism  

DOE Patents (OSTI)

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

Johnson, Kenneth C. (201 W. California Ave., #401, Sunnyvale, CA 94086)

1990-01-01T23:59:59.000Z

45

Two-axis tracking solar collector mechanism  

DOE Patents (OSTI)

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

Johnson, Kenneth C. (201 W. California Ave. #705, Sunnyvale, CA 94086)

1992-01-01T23:59:59.000Z

46

Two-axis tracking solar collector mechanism  

DOE Patents (OSTI)

This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion. 16 figs.

Johnson, K.C.

1992-12-08T23:59:59.000Z

47

Vertical axis wind turbine control strategy  

DOE Green Energy (OSTI)

Early expensive in automatic operation of the Sandia 17-m vertical axis research wind turbine (VAWT) has demonstrated the need for a systematic study of control algorithms. To this end, a computer model has been developed that uses actual wind time series and turbine performance data to calculate the power produced by the Sandia 17-m VAWT operating in automatic control. The model has been used to investigate the influence of starting algorithms on annual energy production. The results indicate that, depending on turbine and local wind characteristics, a bad choice of a control algorithm can significantly reduce overall energy production. The model can be used to select control algorithms and threshold parameters that maximize long-term energy production. An attempt has been made to generalize these results from local site and turbine characteristics to obtain general guidelines for control algorithm design.

McNerney, G.M.

1981-08-01T23:59:59.000Z

48

A comparison of on-axis and off-axis heliostat alignment strategies  

DOE Green Energy (OSTI)

Heliostat installation and alignment costs will be an important element in future solar power tower projects. The predicted annual performances of on- and-off axis strategies are compared for 95 m{sup 2} flat-glass heliostats and an external, molten-salt receiver. Actual approaches to heliostat alignment that have been used in the past are briefly discussed, and relative strengths and limitations are noted. The optimal approach can vary with the application.

Jones, S.A.

1996-03-01T23:59:59.000Z

49

Control system for a vertical axis windmill  

DOE Patents (OSTI)

A vertical axis windmill having a rotating structure is provided with a series of articulated vertical blades whose positions are controlled to maintain a constant RPM for the rotating structure, when wind speed is sufficient. A microprocessor controller is used to process information on wind speed, wind direction and RPM of the rotating structure to develop an electrical signal for establishing blade position. The preferred embodiment of the invention, when connected to a utility grid, is designed to generate 40 kilowatts of power when exposed to a 20 mile per hour wind. The control system for the windmill includes electrical blade actuators that modulate the blades of the rotating structure. Blade modulation controls the blade angle of attack, which in turn controls the RPM of the rotor. In the preferred embodiment, the microprocessor controller provides the operation logic and control functions. A wind speed sensor provides inputs to start or stop the windmill, and a wind direction sensor is used to keep the blade flip region at 90.degree. and 270.degree. to the wind. The control system is designed to maintain constant rotor RPM when wind speed is between 10 and 40 miles per hour.

Brulle, Robert V. (St. Louis County, MO)

1983-10-18T23:59:59.000Z

50

Three-axis particle impact probe  

DOE Patents (OSTI)

Three-axis particle impact probes detect particle impact vectors along x-, y-, and z-axes by means of a head mounted on the outer end of a shaft that is flexibly mounted in silicone rubber at the top of a housing so as to enable motion imparted to the head upon impact to be transmitted to a grounded electrode secured to the shaft within the housing. Excitable electrodes are mounted in the housing in a fixed position, spaced apart from the ground electrode and forming, with the ground electrode, capacitor pairs. Movement of the ground electrode results in changes in capacitance, and these differences in capacitance are used for measurement or derivation of momentum vectors along each of the three axes. In one embodiment, the ground electrode is mounted at the base of the shaft and is secured to a silicone rubber layer at the top of the housing, providing for cantilevered movement. In another embodiment, the shaft is mounted at its mid point in a flexible bushing so that it undergoes pivotal movement around that point.

Fasching, G.E.; Smith, N.S. Jr.; Utt, C.E.

1991-04-02T23:59:59.000Z

51

Airfoil treatments for vertical axis wind turbines  

SciTech Connect

Sandia National Laboratories (SNL) has taken three airfoil related approaches to decreasing the cost of energy of vertical axis wind turbine (VAWT) systems; airfoil sections designed specifically for VAWTs, vortex generators (VGs), and ''pumped spoiling.'' SNL's blade element airfoil section design effort has led to three promising natural laminar flow (NLF) sections. One section is presently being run on the SNL 17-m turbine. Increases in peak efficiency and more desirable dynamic stall regulation characteristics have been observed. Vane-type VGs were fitted on one DOE/Alcoa 100 kW VAWT. With approximately 12% of span having VGs, annual energy production increased by 5%. Pumped spoiling utilizes the centrifugal pumping capabilities of hollow blades. With the addition of small perforations in the surface of the blades and valves controlled by windspeed at the ends of each blade, lift spoiling jets may be generated inducing premature stall and permitting lower capacity, lower cost drivetrain components. SNL has demonstrated this concept on its 5-m turbine and has wind tunnel tested perforation geometries on one NLF section.

Klimas, P.C.

1985-01-01T23:59:59.000Z

52

Yaw dynamics of horizontal axis wind turbines  

DOE Green Energy (OSTI)

Designers of a horizontal axis wind turbine yaw mechanism are faced with a difficult decision. They know that if they elect to use a yaw- controlled rotor then the system will suffer increased initial cost and increased inherent maintenance and reliability problems. On the other hand, if they elect to allow the rotor to freely yaw they known they will have to account for unknown and random, though bounded, yaw rates. They will have a higher-risk design to trade-off against the potential for cost savings and reliability improvement. The risk of a yaw-free system could be minimized if methods were available for analyzing and understanding yaw behavior. The complexity of yaw behavior has, until recently, discouraged engineers from developing a complete yaw analysis method. The objectives of this work are to (1) provide a fundamental understanding of free-yaw mechanics and the design concepts most effective at eliminating yaw problems, and (2) provide tested design tools and guidelines for use by free-yaw wind systems manufacturers. The emphasis is on developing practical and sufficiently accurate design methods.

Hansen, A.C. (Utah Univ., Salt Lake City, UT (United States))

1992-05-01T23:59:59.000Z

53

The triple axis spectrometer at the new research reactor OPAL ...  

Science Conference Proceedings (OSTI)

... The triple axis spectrometer at the new research reactor OPAL in Australia. ... The TAS will be based on a thermal beam at the reactor face. ...

54

Solasta aka The Eagle Axis | Open Energy Information  

Open Energy Info (EERE)

search Name Solasta (aka The Eagle Axis) Place Newton, Massachusetts Zip 2458 Sector Efficiency, Solar Product Start-up planning to produce high-efficiency solar cells using...

55

DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility  

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

Radiographic Hydrodynamic Test Facility DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT, supports a critical component of LANL's primary mission: to ensure...

56

Spin-stabilized magnetic levitation without vertical axis of rotation  

DOE Patents (OSTI)

The symmetry properties of a magnetic levitation arrangement are exploited to produce spin-stabilized magnetic levitation without aligning the rotational axis of the rotor with the direction of the force of gravity. The rotation of the rotor stabilizes perturbations directed parallel to the rotational axis.

Romero, Louis (Albuquerque, NM); Christenson, Todd (Albuquerque, NM); Aaronson, Gene (Albuquerque, NM)

2009-06-09T23:59:59.000Z

57

Ethics of Cardiac Transplantation in Hypoplastic Left Heart Syndrome  

E-Print Network (OSTI)

neonates with hypoplastic left heart syndrome. Arch PediatrTabbutt S (2007) Hypoplastic left heart syndrome: consensus,for hypoplastic left heart syndrome. Ann Thorac Surg 72(6):

Kon, Alexander A.

2009-01-01T23:59:59.000Z

58

Left-Wing Extremism: The Current Threat  

SciTech Connect

Left-wing extremism is ''alive and well'' both in the US and internationally. Although the current domestic terrorist threat within the U. S. is focused on right-wing extremists, left-wing extremists are also active and have several objectives. Leftist extremists also pose an espionage threat to U.S. interests. While the threat to the U.S. government from leftist extremists has decreased in the past decade, it has not disappeared. There are individuals and organizations within the U.S. who maintain the same ideology that resulted in the growth of left-wing terrorism in this country in the 1970s and 1980s. Some of the leaders from that era are still communicating from Cuba with their followers in the U.S., and new leaders and groups are emerging.

Karl A. Seger

2001-04-30T23:59:59.000Z

59

Dosimetry of a single ''hockey stick'' portal for treatment of tumors of the cranio-spinal axis  

Science Conference Proceedings (OSTI)

Conventional treatment of tumors of the cranio-spinal axis portal usually involves multiple-field, moving junction treatments to avoid overlapping fields over the spinal cord. To avoid these problems, we irradiate the cranio-spinal axis using a single ''hockey stick'' portal and the 25-MV x-ray beam from a Varian Clinac-35/sup X/ linear accelerator. Patients are positioned prone on the floor 229 cm from the radiation source and the collimators are rotated 45/sup 0/ so the maximum diagonal dimension of the field 116 cm at 229 cm is coincident with the cranio-spinal axis. The head is alternately rotated to treat the right-hand side one day and the left-hand side the next day. Thermoluminescent dosimetry in an anatomical phantom reveals that, relative to the 100% dose delivered at 4-cm depth on the central axis of the blocked field, the midline posterior fossa dose is about 100%, with a maximum dose of about 105% to the extreme posterior portion of the skull. The midline neck dose is about 95% and the dose to the inferior portion of the spinal cord is about 105%. The doses to other critical organs are also presented.

Glasgow, G.P.; Marks, J.E.

1983-09-01T23:59:59.000Z

60

DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility  

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

DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT, supports a critical component of LANL's primary mission: to ensure the safety, security, and effectiveness of nuclear weapons in our nation's stockpile. Los Alamos scientists built DARHT, the world's most powerful x-ray machine, to analyze mockups of nuclear weapons. At the Los Alamos National Laboratory (LANL), the Dual-Axis Radiographic Hydrodynamic Test Facility, or DARHT, supports a critical component of LANL's primary mission: to ensure the safety, security, and effectiveness of nuclear weapons in our nation's stockpile. Los Alamos scientists built DARHT, the world's most powerful x-ray machine, to analyze mockups of nuclear weapons.

Note: This page contains sample records for the topic "left axis wti" 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

MHK Technologies/Vertical Axis Venturi System | Open Energy Information  

Open Energy Info (EERE)

Axis Venturi System Axis Venturi System < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage 275px Technology Profile Primary Organization Warrior Girl Corporation Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description The proprietary venturi system uses two venturies one on the upstream side of the vertical axis turbine to force the water flow into the turbine and one at the downstream side of the turbine which creates a lower pressure region that pulls the water through the turbine The vertical axis orientation of the turbine is believed by the company to allow for efficiency gains

62

Modelling the aerodynamics of vertical-axis wind turbines.  

E-Print Network (OSTI)

??The current generation of wind turbines that are being deployed around the world features, almost exclusively, a three-bladed rotor with a horizontal-axis configuration. In recent (more)

Scheurich, Frank

2011-01-01T23:59:59.000Z

63

A two axis mirror positioning system with quadrature encoder output  

E-Print Network (OSTI)

This project was conducted in support of a solar concentrating technology that required the design and construction of a low cost, two axis rotational drive system with a resolution of one degree or better. The scope of ...

Woodruff, Rick Bryan

2007-01-01T23:59:59.000Z

64

Determination of Elastic Twist in Horizontal Axis Wind Turbines (HAWTs)  

DOE Green Energy (OSTI)

This report presents the results of a project at the Alternative Energy Institute (AEI) which measured and calculated the elastic twist of three representative composite horizontal-axis blades: Carter 300, Gougeon ESI 54, and UTRC 8 kW.

Stoddard, F.; Nelson, V.; Starcher, K.; Andrews, B.

2006-06-01T23:59:59.000Z

65

EIS-0228: Dual Axis Radiographic Hydrodynamic Test (DARHT) Facility  

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

This EIS evaluates the potential environmental impact of a proposal to construct and operate theDual Axis Radiographic Hydrodynamic Test (DARHT) facility at Los Alamos National Laboratory (LANL)...

66

Record of Decision Dual Axis Radiographic Hydrodynamic Test Facility  

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

8:45 am BILLING CODE 6450-01-P Record of Decision Dual Axis Radiographic Hydrodynamic Test Facility AGENCY: Department of Energy. ACTION: Record of decision. SUMMARY: The...

67

A Two-Axis Tracking System with Datalogger  

Science Conference Proceedings (OSTI)

A versatile two-axis tracking system with datalogger is presented. It is designed with regard to high pointing accuracy, high torque and mechanical load, high accuracy of the data acquisition, extended weather resistance, remote operability, and ...

Meinhard Seefeldner; Andreas Oppenrieder; Dieter Rabus; Joachim Reuder; Mathias Schreier; Peter Hoeppe; Peter Koepke

2004-06-01T23:59:59.000Z

68

A hybrid type small 5-axis CNC milling machine  

E-Print Network (OSTI)

5-axis CNC milling machines are important in a number of industries ranging from aerospace to consumer-die-mold machining because they can deliver high machining accuracy with a spindle tilting capacity. Most of these ...

Son, Seung-Kil, 1964-

2002-01-01T23:59:59.000Z

69

PTAX: the Polarized Triple-Axis Spectrometer at HFIR | ORNL Neutron...  

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

The Polarized Triple-Axis Spectrometer at HFIR HB-1 photo Polarized Triple-Axis Spectrometer (HB-1). Of the four triple-axis spectrometers installed at HFIR, the HB-1 instrument is...

70

Z-Axis Tipper Electromagnetics | Open Energy Information  

Open Energy Info (EERE)

Z-Axis Tipper Electromagnetics Z-Axis Tipper Electromagnetics Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Z-Axis Tipper Electromagnetics Details Activities (2) Areas (2) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Magnetotelluric Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 4,827.00482,700 centUSD 4.827 kUSD 0.00483 MUSD 4.827e-6 TUSD / mile Median Estimate (USD): 6,206.14620,614 centUSD 6.206 kUSD 0.00621 MUSD 6.20614e-6 TUSD / mile High-End Estimate (USD): 17,239.291,723,929 centUSD 17.239 kUSD 0.0172 MUSD 1.723929e-5 TUSD / mile Dictionary.png

71

T-613: Microsoft Excel Axis Properties Remote Code Execution Vulnerability  

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

613: Microsoft Excel Axis Properties Remote Code Execution 613: Microsoft Excel Axis Properties Remote Code Execution Vulnerability T-613: Microsoft Excel Axis Properties Remote Code Execution Vulnerability May 2, 2011 - 7:42am Addthis PROBLEM: Microsoft Excel is prone to a remote code-execution vulnerability because the applications fail to sufficiently validate user-supplied input. PLATFORM: Microsoft Excel (2002-2010) ABSTRACT: Microsoft Excel is prone to a remote code-execution vulnerability because the applications fails to sufficiently validate user-supplied input. Attackers can exploit this issue by enticing an unsuspecting user to open a specially crafted Excel file. Successful exploits can allow attackers to execute arbitrary code with the privileges of the user running the application. Failed exploit attempts will result in a denial-of-service

72

MHK Technologies/Horizontal Axis Logarithmic Spiral Turbine | Open Energy  

Open Energy Info (EERE)

Horizontal Axis Logarithmic Spiral Turbine Horizontal Axis Logarithmic Spiral Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Golden Turbines LLC Technology Resource Click here Current Technology Type Click here Axial Flow Turbine Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description A Horizontal axis Water turbine following the logarithmic spiral to generate clean electric energy from slow moving currents like rivers or ocean currents and with least impact on marine life and the environment because it doesn t require a damn or building huge structures Technology Dimensions Device Testing Date Submitted 36:09.5 << Return to the MHK database homepage

73

5-Axis Freeform Surface Milling using Piecewise Ruled Surface Approximation  

E-Print Network (OSTI)

This paper presents a 5-axis side milling scheme for freeform surfaces based on automatic piecewise ruled surface approximation. With this scheme, resulting surface finish is accurate and pleasing, and has a smaller scallop height compared to ball-end milling. The ruled surface approximation can be made arbitrarily precise resulting in an overall fast milling operation that satisfies tight tolerances, and smoother surface finish. The class of surfaces that can take advantage of this type of 5-axis milling operation includes both convex and saddle-like (hyperbolic) shapes. 1 Introduction The automatic toolpath generation for manufacturing of models consisting of freeform surfaces is a difficult problem addressed by numerous researchers [Bob85, Choi89, Choi93, Chou89, Elb93, Elb94, Fers86, Jera91, Lone87, Sait91, Spen90, Zhan86]. 3-axis machining [Bob85, Choi89, Fers86, Jera91, Lone87, Sait91, Spen90, Zhan86] is more frequently used than 4- or 5-axis machining modes. While deri...

Gershon Elber; Russ Fish

2000-01-01T23:59:59.000Z

74

Map: medial axis based geometric routing in sensor networks  

Science Conference Proceedings (OSTI)

One of the challenging tasks in the deployment of dense wireless networks (like sensor networks) is in devising a routing scheme for node to node communication. Important consideration includes scalability, routing complexity, quality of communication ... Keywords: medial axis, routing, sensor networks, system design

Jehoshua Bruck; Jie Gao; Anxiao Jiang

2007-12-01T23:59:59.000Z

75

IntroductionIntroduction The use of small scale vertical axis wind turbinesThe use of small scale vertical axis wind turbines  

E-Print Network (OSTI)

IntroductionIntroduction The use of small scale vertical axis wind turbinesThe use of small scale vertical axis wind turbines (VAWT) is being studied at McMaster University using(VAWT) is being studied

Tullis, Stephen

76

Precise global collision detection in multi-axis NC-machining  

Science Conference Proceedings (OSTI)

We introduce a new approach to the problem of collision detection in multi-axis NC-machining. Due to the directional nature (tool axis) of multi-axis NC-machining, space subdivision techniques are adopted from ray-tracing algorithms and are extended ... Keywords: 5-Axis machining, Collision detection and verification, Lower envelopes, NC-machining, Ray tracing, Space subdivision

Oleg Ilushin; Gershon Elber; Dan Halperin; Ron Wein; Myung-Soo Kim

2005-08-01T23:59:59.000Z

77

DARHT Axis-I Diode Simulations II: Geometrical Scaling  

SciTech Connect

Flash radiography of large hydrodynamic experiments driven by high explosives is a venerable diagnostic technique in use at many laboratories. Many of the largest hydrodynamic experiments study mockups of nuclear weapons, and are often called hydrotests for short. The dual-axis radiography for hydrodynamic testing (DARHT) facility uses two electron linear-induction accelerators (LIA) to produce the radiographic source spots for perpendicular views of a hydrotest. The first of these LIAs produces a single pulse, with a fixed {approx}60-ns pulsewidth. The second axis LIA produces as many as four pulses within 1.6-{micro}s, with variable pulsewidths and separation. There are a wide variety of hydrotest geometries, each with a unique radiographic requirement, so there is a need to adjust the radiographic dose for the best images. This can be accomplished on the second axis by simply adjusting the pulsewidths, but is more problematic on the first axis. Changing the beam energy or introducing radiation attenuation also changes the spectrum, which is undesirable. Moreover, using radiation attenuation introduces significant blur, increasing the effective spot size. The dose can also be adjusted by changing the beam kinetic energy. This is a very sensitive method, because the dose scales as the {approx}2.8 power of the energy, but it would require retuning the accelerator. This leaves manipulating the beam current as the best means for adjusting the dose, and one way to do this is to change the size of the cathode. This method has been proposed, and is being tested. This article describes simulations undertaken to develop scaling laws for use as design tools in changing the Axis-1 beam current by changing the cathode size.

Ekdahl, Carl A. Jr. [Los Alamos National Laboratory

2012-06-14T23:59:59.000Z

78

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: ...

79

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 ...

80

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 ...

Note: This page contains sample records for the topic "left axis wti" 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

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 ...

82

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

83

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 ...

84

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, ...

85

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. ...

86

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

87

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

88

Vertical-axis wind turbines -- The current status of an old technology  

DOE Green Energy (OSTI)

Vertical-axis wind turbine technology is not well understood, even though the earliest wind machines rotated about a vertical axis. The operating environment of a vertical-axis wind turbine is quite complex, but detailed analysis capabilities have been developed and verified over the last 30 years. Although vertical-axis technology has not been widely commercialized, it exhibits both advantages and disadvantages compared to horizontal-axis technology, and in some applications, it appears to offer significant advantages.

Berg, D.E.

1996-12-31T23:59:59.000Z

89

Tuning the DARHT Axis-II linear induction accelerator focusing  

SciTech Connect

Flash radiography of large hydrodynamic experiments driven by high explosives is a well-known diagnostic technique in use at many laboratories, and the Dual-Axis Radiography for Hydrodynamic Testing (DARHT) facility at Los Alamos produces flash radiographs of large hydrodynamic experiments. Two linear induction accelerators (LIAs) make the bremsstrahlung radiographic source spots for orthogonal views of each test. The 2-kA, 20-MeV Axis-I LIA creates a single 60-ns radiography pulse. The 1.7-kA, 16.5-MeV Axis-II LIA creates up to four radiography pulses by kicking them out of a longer pulse that has a 1.6-{mu}s flattop. The Axis-II injector, LIA, kicker, and downstream transport (DST) to the bremsstrahlung converter are described. Adjusting the magnetic focusing and steering elements to optimize the electron-beam transport through an LIA is often called 'tuning.' As in all high-current LIAs, the focusing field is designed to be as close to that of the ideal continuous solenoid as physically possible. In ideal continuous solenoidal transport a smoothly varying beam size can easily be found for which radial forces balance, and the beam is said to be 'matched' to the focusing field. A 'mismatched' beam exhibits unwanted oscillations in size, which are a source of free energy that contributes to emittance growth. This is undesirable, because in the absence of beam-target effects, the radiographic spot size is proportional to the emittance. Tuning the Axis-II LIA is done in two steps. First, the solenoidal focusing elements are set to values designed to provide a matched beam with little or no envelope oscillations, and little or no beam-breakup (BBU) instability growth. Then, steering elements are adjusted to minimize the motion of the centroid of a well-centered beam at the LIA exit. This article only describes the design of the tune for the focusing solenoids. The DARHT Axis-II LIA was required to be re-tuned after installing an accelerator cell to replace a failed solenoid in March of 2012. We took advantage of this opportunity to improve the design of the focusing tune with better models of the remaining partially failed solenoids, better estimates of beam initial conditions, and better values for pulsed-power voltages. As with all previous tunes for Axis-II, this one incorporates measures to mitigate beam-breakup (BBU) instability, image displacement instability (IDI), corkscrew (sweep), and emittance growth. Section II covers the general approach to of design of focusing solenoid tunes for the DARHT Axis-2 LIA. Section III explains the specific requirements and simulations needed to design the tune for the injector, which includes the thermionic electron source, diode, and six induction cells. Section IV explains the requirements and simulations for tuning the main accelerator, which consists of 68 induction cells. Finally, Section V explores sensitivity of the tune to deviations of parameters from nominal, random variations, and uncertainties in values. Four appendices list solenoid settings for this new tune, discuss comparisons of different simulation codes, show halo formation in mismatched beams, and present a brief discussion of the beam envelope equation, which is the heart of the method used to design LIA solenoid tunes.

Ekdahl, Carl A. [Los Alamos National Laboratory

2012-04-24T23:59:59.000Z

90

CMB Maximum Temperature Asymmetry Axis: Alignment with Other Cosmic Asymmetries  

E-Print Network (OSTI)

We use a global pixel based estimator to identify the axis of the residual Maximum Temperature Asymmetry (MTA) (after the dipole subtraction) of the WMAP 7 year Internal Linear Combination (ILC) CMB temperature sky map. The estimator is based on considering the temperature differences between opposite pixels in the sky at various angular resolutions (4 degrees-15 degrees and selecting the axis that maximizes this difference. We consider three large scale Healpix resolutions (N_{side}=16 (3.7 degrees), N_{side}=8 (7.3 degrees) and N_{side}=4 (14.7 degrees)). We compare the direction and magnitude of this asymmetry with three other cosmic asymmetry axes (\\alpha dipole, Dark Energy Dipole and Dark Flow) and find that the four asymmetry axes are abnormally close to each other. We compare the observed MTA axis with the corresponding MTA axes of 10^4 Gaussian isotropic simulated ILC maps (based on LCDM). The fraction of simulated ILC maps that reproduces the observed magnitude of the MTA asymmetry and alignment with the observed \\alpha dipole is in the range of 0.1%-0.5%$ (depending on the resolution chosen for the CMB map). The corresponding magnitude+alignment probabilities with the other two asymmetry axes (Dark Energy Dipole and Dark Flow) are at the level of about 1%. We propose Extended Topological Quintessence as a physical model qualitatively consistent with this coincidence of directions.

Antonio Mariano; Leandros Perivolaropoulos

2012-11-26T23:59:59.000Z

91

Asymmetric parametric amplification in nonlinear left-handed transmission lines  

E-Print Network (OSTI)

We study parametric amplification in nonlinear left-handed transmission lines, which serve as model systems for nonlinear negative index metamaterials. We experimentally demonstrate amplification of a weak pump signal in three regimes: with the signal in the left-handed band, with the signal in the stop band, and with the signal at a defect frequency. In particular, we demonstrate the amplification of the incident wave by up to 15dB in the left-handed regime.

Powell, David A; Kivshar, Yuri S

2008-01-01T23:59:59.000Z

92

Leptonic dipole moments in the left-right supersymmetric ... - Springer  

Science Conference Proceedings (OSTI)

doscalar Higgs boson can give significant contributions to dipole moments at two loop level, coming from Barr-Zee. Fig. 2. Chargino, neutralino and left-right...

93

Torque ripple in a Darrieus, vertical axis wind turbine  

DOE Green Energy (OSTI)

Interaction between a steady wind and a rotating, Darrieus, vertical axis wind turbine produces time periodic aerodynamic loads which cause time dependent torque variations, referred to as torque ripple, to occur in the mechanical link between the turbine and the electrical generator. There is concern for the effect of torque ripple upon fatigue life of drive train components and upon power quality. An analytical solution characterizing the phenomenon of torque ripple has been obtained which is based upon a Fourier expansion of the time dependent features of the problem. Numerical results for torque ripple, some experimental data, determination of acceptable levels and methods of controlling it, are presented and discussed.

Reuter, R.C. Jr.

1980-01-01T23:59:59.000Z

94

Axis-1 diode simulations I: standard 2-inch cathode  

SciTech Connect

The standard configuration of the DARHT Axis-I diode features a 5.08-cm diameter velvet emitter mounted in the flat surface of the cathode shroud. The surface of the velvet is slightly recessed {approx}2.5 mm. This configuration produces a 1.75 kA beam when a 3.8-MV pulse is applied to the anode-cathode (AK) gap. This note addresses some of the physics of this diode through the use of finite-element simulations.

Ekdahl, Carl [Los Alamos National Laboratory

2011-01-11T23:59:59.000Z

95

Pressure dependence of the c-axis resistivity of graphite  

Science Conference Proceedings (OSTI)

The c-axis resistivity of highly oriented pyrolytic graphite has been measured from 2 to 300 K under hydrostatic pressures of up to 40 kbar. A resistivity peak near 40 K, typical for this type of graphite at ambient pressure, rapidly diminishes with increasing pressure but does not shift its position with respect to temperature. This observation suggests that the origin of the resistivity peak is not in a strong electron-phonon interaction but is associated with a particular structural matrix of these artificially produced graphites. A model is proposed, based on tunneling between microcrystallites, which accounts for the peculiar temperature and pressure dependence of the resistivity.

Uher, C.; Hockey, R.L.; Ben-Jacob, E.

1987-03-15T23:59:59.000Z

96

Experimental and theoretical study of horizontal-axis wind turbines  

E-Print Network (OSTI)

in many of the large machines which are now operating . 1.2 Recent developments (prior to 1978) Since 1973 wind power has grown at a very rapid rate in both Europe and America. The number of horizontal-axis wind turbines which have been built... .1 Introduction 9.2 Wind velocity measurement 9.3 Concluding remarks re wind velocity measurement 9.4 Power vs. wind speed 9.5 POWer coefficient vs. tip speed ratio 9.6 Conclusions Chapter 10. Summary of conclusions and suggestions for further research...

Anderson, Michael Broughton

1981-10-20T23:59:59.000Z

97

Design of a novel six-axis metrology system for meso-scale nanopositioners  

E-Print Network (OSTI)

The purpose of this research is to develop the best possible means and methods of building a six axis metrology system given cost and space constraints. Six axis measurements are a crucial part of precision engineering and ...

King, Ryan N. (Ryan Nicholas)

2009-01-01T23:59:59.000Z

98

Vertical Wind Shear Associated with Left-Moving Supercells  

Science Conference Proceedings (OSTI)

Vertical wind shear parameters are presented for 60 left-moving supercells across the United States, 53 of which produced severe hail (?1.9 cm). Hodographs corresponding to environments of left-moving supercells have a tendency to be more linear ...

Matthew J. Bunkers

2002-08-01T23:59:59.000Z

99

Multistability in nonlinear left-handed transmission lines  

E-Print Network (OSTI)

Employing a nonlinear left-handed transmission line as a model system, we demonstrate experimentally the multi-stability phenomena predicted theoretically for microstructured left-handed metamaterials with a nonlinear response. We show that the bistability is associated with the period doubling which at higher power may result in chaotic dynamics of the transmission line.

Powell, David A; Kivshar, Yuri S

2008-01-01T23:59:59.000Z

100

Blade Offset and Pitch Effects on a High Solidity Vertical Axis Wind Turbine  

E-Print Network (OSTI)

ABSTRACT A high solidity, small scale, 2.5m diameter by 3m high Vertical Axis Wind Turbine (VAWT, performance 1. INTRODUCTION Small scale vertical axis wind turbines (VAWTs) show potential for urban rooftop turbines. Keywords: Vertical Axis Wind Turbine, VAWT, airfoil, pitch, blade, mount, offset, high solidity

Tullis, Stephen

Note: This page contains sample records for the topic "left axis wti" 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

Flux Distribution of a Single-Axis Tracking Parabolic Trough Array with Photovoltaic Receiver  

E-Print Network (OSTI)

Flux Distribution of a Single-Axis Tracking Parabolic Trough Array with Photovoltaic Receiver G 0200 Australia E-mail: gregory.burgess@anu.edu.au Abstract Single-axis tracking parabolic troughs Long arrays of single-axis tracking parabolic troughs with a fluid filled absorber are a well

102

Feasibility and optical performance of one axis three positions sun-tracking polar-axis aligned CPCs for photovoltaic applications  

SciTech Connect

A new design concept, called one axis three positions sun-tracking polar-axis aligned CPCs (3P-CPCs, in short), was proposed and theoretically studied in this work for photovoltaic applications. The proposed trough-like CPC is oriented in the polar-axis direction, and the aperture is daily adjusted eastward, southward, and westward in the morning, noon and afternoon, respectively, by rotating the CPC trough, to ensure efficient collection of beam radiation nearly all day. To investigate the optical performance of such CPCs, an analytical mathematical procedure is developed to estimate daily and annual solar gain captured by such CPCs based on extraterrestrial radiation and monthly horizontal radiation. Results show that the acceptance half-angle of 3P-CPCs is a unique parameter to determine their optical performance according to extraterrestrial radiation, and the annual solar gain stays constant if the acceptance half-angle, {theta}{sub a}, is less than one third of {omega}{sub 0,min}, the sunset hour angle in the winter solstice, otherwise decreases with the increase of {theta}{sub a}. For 3P-CPCs used in China, the annual solar gain, depending on the climatic conditions in site, decreased with the acceptance half-angle, but such decrease was slow for the case of {theta}{sub a}{<=}{omega}{sub 0,min}/3, indicating that the acceptance half-angle should be less than one third of {omega}{sub 0,min} for maximizing annual energy collection. Compared to fixed east-west aligned CPCs (EW-CPCs) with a yearly optimal acceptance half-angle, the fixed south-facing polar-axis aligned CPCs (1P-CPCs) with the same acceptance half-angle as the EW-CPCs annually collected about 65-74% of that EW-CPCs did, whereas 3P-CPCs annually collected 1.26-1.45 times of that EW-CPCs collected, indicating that 3P-CPCs were more efficient for concentrating solar radiation onto their coupling solar cells. (author)

Tang, Runsheng; Yu, Yamei [Education Ministry Key Laboratory of Advanced Technology and Preparation for Renewable Energy Materials, Yunnan Normal University, Kunming 650092 (China)

2010-09-15T23:59:59.000Z

103

Template:DivStartLeft | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Template Edit History Facebook icon Twitter icon » Template:DivStartLeft Jump to: navigation, search This is the 'DivStartLeft' template. It is used in conjuction with Template:DivEnd to put surround the "free text" area in the geothermal region template. Usage It should be called in the following format: {{DivStartLeft}} Retrieved from "http://en.openei.org/w/index.php?title=Template:DivStartLeft&oldid=403880" Categories: Templates Formatting Templates What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

104

Tool selectivity in left occipitotemporal cortex develops without vision  

Science Conference Proceedings (OSTI)

Previous studies have provided evidence for a tool-selective region in left lateral occipitotemporal cortex LOTC. This region responds selectively to pictures of tools and to characteristic visual tool motion. The present human fMRI study tested whether ...

Marius V. Peelen; Stefania Bracci; Xueming Lu; Chenxi He; Alfonso Caramazza; Yanchao Bi

2013-08-01T23:59:59.000Z

105

Measurement and device design of left-handed metamaterials  

E-Print Network (OSTI)

The properties of a variety of left-handed metamaterial (LHM) structures are analyzed and measured to verify consistent behavior between theory an measurements. The structures are simulated using a commercial software ...

Thomas Zachary M. (Zachary Michael)

2005-01-01T23:59:59.000Z

106

Control system for a vertical-axis windmill  

DOE Patents (OSTI)

A vertical-axis windmill having a rotating structure is provided with a series of articulated vertical blades whose positions are controlled to maintain a constant RPM for the rotating structure, when wind speed is sufficient. A microprocessor controller is used to process information on wind speed, wind direction and RPM of the rotating structure to develop an electrical signal for establishing blade position. The preferred embodiment of the invention, when connected to a utility grid, is designed to generate 40 kilowatts of power when exposed to a 20 mile per hour wind. The control system for the windmill includes electrical blade actuators that modulate the blades of the rotating structure. Blade modulation controls the blade angle of attack, which in turn controls the RPM of the rotor. In the preferred embodiment, the microprocessor controller provides the operation logic and control functions. A wind speed sensor provides inputs to start or stop the windmill, and a wind direction sensor is used to keep the blade flip region at 90 and 270/sup 0/ to the wind. The control system is designed to maintain constant rotor RPM when wind speed is between 10 and 40 miles per hour.

Brulle, R.V.

1981-09-03T23:59:59.000Z

107

UNSTEADY SIMULATION OF FLOW IN MICRO VERTICAL AXIS WIND TURBINE  

E-Print Network (OSTI)

Though wind turbines and windmills have been used for centuries, the application of aerodynamics technology to improve reliability and reduce costs of wind-generated energy has only been pursued in earnest for the past 40 years. Today, wind energy is mainly used to generate electricity. Wind is a renewable energy source. Power production from wind turbines is affected by certain conditions: wind speed, turbine speed, turbulence and the changes of wind direction. These conditions are not always optimal and have negative effects on most turbines. The present turbine is supposed to be less affected by these conditions because the blades combine a rotating movement around each own axis and around the nacelles one. Due to this combination of movements, flow around this turbine can be more highly unsteady, because of great blade stagger angles. The turbine has a rotor with three straight blades of symmetrical airfoil. Paper presents unsteady simulations that have been performed for one wind velocity, and different initial blades stagger angles. The influence of interaction of blades is studied for one specific constant rotational speed among the four rotational speeds that have been studied.

A. C. Bayeul-lain; G. Bois

2013-01-01T23:59:59.000Z

108

Simulation and modeling of flow field around a horizontal axis wind turbine (HAWT) using RANS method.  

E-Print Network (OSTI)

??The principal objective of the proposed CFD analysis is to investigate the flow field around a horizontal axis wind turbine rotor and calculate the turbine's (more)

Sargsyan, Armen.

2010-01-01T23:59:59.000Z

109

Medial axis of regions bounded by b-spline curves and surfaces.  

E-Print Network (OSTI)

??The medial axis of an object is a shape descriptor that intuitively presents the morphology or structure of the object as well as intrinsic geometric (more)

Musuvathy, Suraj Ravi

2011-01-01T23:59:59.000Z

110

The Influence of Aerodynamic Stall on the Performance of Vertical Axis Wind Turbines.  

E-Print Network (OSTI)

??There is currently an increasing desire for local small-scale sustainable energy generation. This has lead to increased interest in the concept of the vertical axis (more)

Edwards, Jonathan

2012-01-01T23:59:59.000Z

111

Mesh Requirement Investigation for 2D and 3D Aerodynamic Simulation of Vertical Axis Wind Turbines.  

E-Print Network (OSTI)

??The accuracy of a Computational Fluid Dynamics (CFD) model to capture the complex flow around a small vertical axis wind turbine (VAWT) on 2D and (more)

Naghib Zadeh, Saman

2013-01-01T23:59:59.000Z

112

Front Row (left to right): Bryan Reed, Wayne King, Nigel Browning ...  

DTEM Team Members: Front Row (left to right): Bryan Reed, Wayne King, Nigel Browning, Judy Kim, Michael Armstrong Back Row (left to right): Thomas LaGrange ...

113

Characterization of a multi-axis ion chamber array  

Science Conference Proceedings (OSTI)

Purpose: The aim of this work was to characterize a multi-axis ion chamber array (IC PROFILER; Sun Nuclear Corporation, Melbourne, FL USA) that has the potential to simplify the acquisition of LINAC beam data. Methods: The IC PROFILER (or panel) measurement response was characterized with respect to radiation beam properties, including dose, dose per pulse, pulse rate frequency (PRF), and energy. Panel properties were also studied, including detector-calibration stability, power-on time, backscatter dependence, and the panel's agreement with water tank measurements [profiles, fractional depth dose (FDD), and output factors]. Results: The panel's relative deviation was typically within ({+-}) 1% of an independent (or nominal) response for all properties that were tested. Notable results were (a) a detectable relative field shape change of {approx}1% with linear accelerator PRF changes; (b) a large range in backscatter thickness had a minimal effect on the measured dose distribution (typically less than 1%); (c) the error spread in profile comparison between the panel and scanning water tank (Blue Phantom, CC13; IBA Schwarzenbruck, DE) was approximately ({+-}) 0.75%. Conclusions: The ability of the panel to accurately reproduce water tank profiles, FDDs, and output factors is an indication of its abilities as a dosimetry system. The benefits of using the panel versus a scanning water tank are less setup time and less error susceptibility. The same measurements (including device setup and breakdown) for both systems took 180 min with the water tank versus 30 min with the panel. The time-savings increase as the measurement load is increased.

Simon, Thomas A.; Kozelka, Jakub; Simon, William E.; Kahler, Darren; Li, Jonathan; Liu, Chihray [Department of Nuclear and Radiological Engineering, University of Florida, 202 Nuclear Science Building, Gainesville, Florida 32611-8300 (United States); Department of Radiation Oncology, Health Science Center, University of Florida, P.O. Box 100385, Gainesville, Florida 32610-0385 (United States) and Sun Nuclear Corporation, 425-A Pineda Court, Melbourne, Florida 32940 (United States); Sun Nuclear Corporation, 425-A Pineda Court, Melbourne, Florida 32940 (United States); Department of Radiation Oncology, Health Science Center, University of Florida, P.O. Box 100385, Gainesville, Florida 32610-0385 (United States)

2010-11-15T23:59:59.000Z

114

A General Method for Fatigue Analysis of Vertical Axis  

E-Print Network (OSTI)

The fatigue life of wind turbine blades that are exposed to the random loading environment of atmospheric winds is described with random data analysis procedures. The incident wind speed and the stresses caused by these winds are expressed in terms of probability density functions, while the fatigue life vs stress level relationship is treated deterministically. This approach uses a "damage density function" to express fatigue damage as a function of wind speed. By examining the constraints on the variables in the damage density expression, some generalizations of the wind turbine fatigue problem are obtained. The area under the damage density function is inversely related to total fatigue life. Therefore, an increase in fatigue life caused by restricted operation in certain wind regimes is readily visualized. An "on parameter", which is the percentage of total time at each wind speed that the turbine actually operates, is introduced for this purpose. An example calculation is presented using data acquired from the DOE 100-kW turbine program. *This work was performed at Sandia National Laboratories and was supported by the US Department of Energy under Contract Number DE-AC04-76DP00789. Acknowledgments The calculations required to produce the figures in this paper would not have been possible without the work of Jerry McNerney and Tim Leonard in developing the AUTOSYM computer simulation, The efforts of Nolan Clark and Ron Davis in collecting data for the DOE 100-kW turbine at the USDA station in Bushland, TX are greatly appreciated. of Vertical Axis Wind Turbine Blades

Paul S. Veers

1983-01-01T23:59:59.000Z

115

Prospects for Off-Axis Neutral Beam Current Drive in the DIII-D Tokamak  

Science Conference Proceedings (OSTI)

Off-axis neutral beam (NB) current drive (CD) (NBCD) has the potential to supply substantial off-axis CD for the demonstration steady-state, Advanced Tokamak scenarios. A modification of the two existing DIII-D NB beamlines is proposed to allow off-axis CD with NB injection (NBI) vertically steered to drive current as far off axis as half the plasma radius. The profile and magnitude of the driven current is calculated using the NUBEAM Monte Carlo module in the TRANSP and ONETWO transport codes. When the beam is injected in the same direction as the toroidal field, off-axis CD of approximate to 45 kA/MW is calculated at normalized radius (square root of the wtoroidal flux), rho = 0. 5 with full-width at half-maximum of 0.45 in rho. The dimensionless CD efficiency is comparable or somewhat better than that for electron cyclotron CD (ECCD) at the same location and plasma parameters. The efficiency stays nearly constant in going from on-axis to off-axis CD. The localization and magnitude of the off-axis NBCD are sensitive to the alignment of the NBI relative to the helical pitch of the magnetic field lines and thus to the direction of the toroidal field and plasma current. The driven current is still localized off axis for fast ion diffusivities up to 1 m(2)/s. The calculations show that the off-axis NBCD can supply much of the off-axis CD for the steady-state scenarios under consideration, leaving ECCD for fine-tuning of the current profile and real-time control.

Murakami, Masanori [ORNL; Park, Jin Myung [ORNL; Luce, T.C. [General Atomics, San Diego; Wade, David R [ORNL; Hong, R. M. [General Atomics, San Diego

2008-01-01T23:59:59.000Z

116

Blade shape for a tropskien type of vertical-axis wind turbine  

SciTech Connect

The equations derived to define a troposkien (the shape a completely flexible cable assumes when it is spun at a constant angular velocity about a vertical axis to which its two ends are attached) are described. The implications of the solutions on the design of a vertical-axis wind turbine are discussed for cases where gravity is neglected.

Blackwell, B.F.; Reis, G.E.

1977-03-01T23:59:59.000Z

117

Response of a Vertical Axis Wind Turbine to Time Varying Wind Conditions found within the Urban  

E-Print Network (OSTI)

Response of a Vertical Axis Wind Turbine to Time Varying Wind Conditions found within the Urban, 2010 PP 389­401 389 ABSTRACT Experimental testing of a vertical axis wind turbine within the urban of the turbine. Temporal variation of the wind with respect to the direction and velocity fluctuations

Tullis, Stephen

118

Performance Testing of a Small Vertical-Axis Wind Turbine , S. Tullis2  

E-Print Network (OSTI)

Performance Testing of a Small Vertical-Axis Wind Turbine R. Bravo1 , S. Tullis2 , S. Ziada3 of electric production [1]. Although most performance testing for small-scale wind turbines is conducted vertical-axis wind turbines (VAWT) in urban settings, full-scale wind tunnel testing of a prototype 3.5 k

Tullis, Stephen

119

Study on Aerodynamic Design of Horizontal Axis Wind Turbine Generator System  

Science Conference Proceedings (OSTI)

In this paper the choosing principles of design parameters and multi-airfoils in horizontal axis wind turbine (HAWT) generator system aerodynamic design are introduced. On the basis of the comparison analysis of wind turbine aerodynamic design method ... Keywords: Schmitz, airfoil, partial load, horizontal axis wind turbine (HAWT), blade tip speed ratio (BTSR)

Li Dong; Mingfu Liao; Yingfeng Li; Xiaoping Song; Ke Xu

2009-10-01T23:59:59.000Z

120

CTAX: the US/Japan Cold Neutron Triple-Axis Spectromete at HFIR | ORNL  

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

CTAX-US/Japan Cold Neutron Triple-Axis Spectrometer CTAX-US/Japan Cold Neutron Triple-Axis Spectrometer CTAX US/Japan Cold Neutron Triple-Axis Spectrometer (CG-4C). (larger image) The U.S.-Japan Cold Neutron Triple-Axis Spectrometer (CTAX) is a conventional triple-axis spectrometer with variable incident energy and variable monochromator-sample and sample-analyzer distances. The cold guide 4 bender and guide hall shielding reduce background levels at CG-4C, and the 15-cm-tall guide profile is well exploited by CG-4C's vertically focusing monochromator (PG 002). To enhance accommodation of strong magnetic fields at the sample position and to simplify future polarization analysis, the amount of ferromagnetic material has been minimized in the construction of this instrument. CG-4C is a collaboration of Oak Ridge National Laboratory, the Neutron

Note: This page contains sample records for the topic "left axis wti" 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

Off-axis Neutral Beam Current Drive for Advanced Scenario Development in DIII-D  

Science Conference Proceedings (OSTI)

Modification of the two existing DIII-D neutral beam lines is proposed to allow vertical steering to provide off-axis neutral beam current drive (NBCD) as far off-axis as half the plasma radius. New calculations indicate very good current drive with good localization off-axis as long as the toroidal magnetic field, B{sub T}, and the plasma current, I{sub p}, are in the same direction (for a beam steered downward). The effects of helicity can be large: e.g., ITER off-axis NBCD can be increased by more than 20% if the B{sub T} direction is reversed. This prediction has been tested by an off-axis NBCD experiment using reduced size plasmas that are vertically shifted with the existing NBI on DIII-D. The existence of off-axis NBCD is evident in sawtooth and internal inductance behavior. By shifting the plasma upward or downward, or by changing the sign of the toroidal field, measured off-axis NBCD profiles, determined from MSE data, are consistent with predicted differences (40%-45%) arising from the NBI orientation with respect to the magnetic field lines. Modification of the DIII-D NB system will strongly support scenario development for ITER and future tokamaks as well as providing flexible scientific tools for understanding transport, energetic particles and heating and current drive.

Murakami, M; Park, J; Petty, C; Luce, T; Heidbrink, W; Osborne, T; Wade, M; Austin, M; Brooks, N; Budny, R; Challis, C; DeBoo, J; deGrassie, J; Ferron, J; Gohil, P; Hobirk, J; Holcomb, C; Hollmann, E; Hong, R; Hyatt, A; Lohr, J; Lanctot, M; Makowski, M; McCune, D; Politzer, P; Prater, R; John, H S; Suzuki, T; West, W; Unterberg, E; Van Zeeland, M; Yu, J

2008-10-13T23:59:59.000Z

122

Right-Left Asymmetry of Radiation from Fission  

E-Print Network (OSTI)

The effect of the right-left asymmetry is considered in the predicted earlier electric dipole radiation from fission fragments arising due to the Strutinski-Denisov induced polarisation mechanism. The magnitude of the asymmetry parameter is on the level of 10^-3. That is in agreement with the recent experimental data on the radiative ROT effect in ^{235}U fission induced by cold polarised neutrons.

F. F. Karpeshin

2007-10-09T23:59:59.000Z

123

Design and development of a two-axis reluctance based actuator for hexflex nano-positioner  

E-Print Network (OSTI)

An endeavor was conducted to explore the design and development of a two-axis linear reluctance actuator for use as a part of a nano-positioner with the application of serving as a small scale kinematic coupling assembly ...

Liles, Howard J

2010-01-01T23:59:59.000Z

124

Laboratory Measurements of Small Raindrop Distortion. Part I: Axis Ratios and Fall Behavior  

Science Conference Proceedings (OSTI)

The resonant interactions between eddy shedding and drop oscillations postulated by Gunn for millimeter diameter raindrops were investigated in a series of laboratory measurements of axis ratio and fall behavior for water drops of d = 0.701.54 ...

Kenneth V. Beard; Rodney J. Kubesh; Harry T. Ochs III

1991-03-01T23:59:59.000Z

125

Axis Ratios of Water Drops Levitated in a Vertical Wind Tunnel  

Science Conference Proceedings (OSTI)

The shapes of falling raindrops are often significantly altered by drop oscillations, complicating dual-polarization radar methods that rely on a predictable, monotonic variation of drop axis ratio ? with equivolume drop diameter d. This ...

B. K. Jones; J. R. Saylor

2009-11-01T23:59:59.000Z

126

Horizontal-axis washing machines offer large savings: New models entering North American market  

Science Conference Proceedings (OSTI)

Long popular in Europe, new horizontal-axis clothes washers are entering the North American market, creating opportunities for government and utility conservation efforts. Unlike vertical-axis machines, which immerse the clothes in water, horizontal-axis designs use a tumbling action and require far less water, water-heating energy, and detergent. One development in this area is the recent reintroduction by the Frigidaire Company of a full-size, front-load, horizontal-axis washing machine. The new model is an improved version of an earlier design that was discontinued in mid-1991 during changes in manufacturing facilities. It is available under the Sears Kenmore, White-Westinghouse, and Gibson labels. While several European and commercial-grade front-load washers are sold in the US, they are all considerably more expensive than the Frigidaire machine, making it the most efficient clothes washer currently available in a mainstream North American consumer product line.

Shepard, M.

1992-12-31T23:59:59.000Z

127

Design of a multi-axis force transducer with applications in track and field  

E-Print Network (OSTI)

The objective of this thesis is the design and implementation of a multi-axis force transducer to be integrated into a set of track and field starting blocks. The feedback from this transducer can be used by athletes and ...

Traina, Zachary J

2005-01-01T23:59:59.000Z

128

Five-axis tool path generation for a flat-end tool based on iso-conic partitioning  

Science Conference Proceedings (OSTI)

Traditionally, for the flat-end tool, due to the intertwined dependence relationship between its axis and reference point, most 5-axis tool-path generation algorithms take a decoupled two-stage strategy: first, the so-called cutter contact (CC) curves ... Keywords: 5-axis NC machining, Kinematic performance, Local gouging, Tool orientation, Tool path planning

Nan Wang; Kai Tang

2008-12-01T23:59:59.000Z

129

RIGHT-LEFT ASYMMETRY OF RADIATION FROM FISSION  

E-Print Network (OSTI)

The effect of the right-left asymmetry is considered in the predicted earlier electric dipole radiation from fission fragments arising due to the Strutinski Denisov induced polarisation mechanism. The magnitude of the asymmetry parameter is on the level of 10 ?3. That is in agreement with the recent experimental data on the radiative ROT effect in 235 U fission induced by cold polarised neutrons. PACS: 24.80.+y, 24.75.+i, 24.70.+s Key words: Fission, asymmetry, radiation, ROT-effect

F. F. Karpeshin

2008-01-01T23:59:59.000Z

130

Left-handed metamaterial design for Cerenkov radiation  

SciTech Connect

The design of a new type of left-handed material (LHM), having two dimensions of negative permittivities and one dimension of negative permeability, is presented in this paper for the observation and demonstration of the LH properties of Cerenkov radiation, which is a transverse magnetic (TM) electromagnetic wave. For a unit cell's dimension of 5 mm, a LH band is observed between 6 and 7 GHz upon a TM incidence. We also use an antenna array to model a traveling current source, representing a single frequency component of a moving charged particle, demonstrating the feasibility and basis of observing backward Cerenkov radiation experimentally with LHM.

Wu BaeIan; Lu Jie; Kong, J.A.; Chen Min [Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307 (United States); Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307 (United States)

2007-12-01T23:59:59.000Z

131

The Dissipation of a Left-Moving Cell in a Severe Storm Environment  

Science Conference Proceedings (OSTI)

Observations have shown that thunderstorms sometimes undergo updraft splitting, where one updraft moves to the right of the mean tropospheric wind and the other to the left. Observations also show that the left-moving updraft tends to dissipate ...

Lewis D. Grasso

2000-08-01T23:59:59.000Z

132

Rotation Angle for the Optimum Tracking of One-Axis Trackers  

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

Cover Photos: (left to right) photo by Pat Corkery, NREL 16416, photo from SunEdison, NREL 17423, photo by Pat Corkery, NREL 16560, photo by Dennis Schroeder, NREL...

133

Development and Test Plans for a small Vertical Axis Turbine Designed and  

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

Development and Test Plans for a small Vertical Axis Turbine Designed and Development and Test Plans for a small Vertical Axis Turbine Designed and Built by the Russian State Rocket Center under Berkeley Lab auspices Speaker(s): Anthony Radspieler Jr. Glen Dahlbacka Joseph Rasson Date: March 4, 2010 - 12:00pm Location: 90-3122 Berkeley Lab Engineering Division teamed with Empire Magnetics, Rohnert Park and the Makeyev State Rocket Center under a DOE NNSA non-proliferation project to develop and test a series of small wind turbines of vertical axis design. Over the years, about 100 Russian scientists and engineers worked on the project and the hydrodynamic, aerodynamic and mechanical test facilities of the SRC were used. The objective was to create a highly manufacturable Darieus unit with a modest Tip Speed Ratio (quiet and low

134

CFD Analysis Of Particle Transport In Axi-Symmetric Tubes Under The Influence Of Thermophoretic Force  

Science Conference Proceedings (OSTI)

In this study, we developed two frameworks to investigate the thermophoretic particulate deposition in non-isothermal tube flows conveying particles ranging from 10 to 300 nm; a one dimensional model where the variables are assumed to be uniform in each cross section perpendicular to the tube axis and an axi-symmetric model where the aforementioned assumption is relaxed. In the one dimensional model, the rate of mass deposition along the inner surface of the tube is computed based on the local thermophoretic velocity of the particulate phase at the wall. This velocity is proportional to the radial gradient of the temperature at the wall and is calculated via some empirical correlations for heat transfer in tube flows. In the axi-symmetric model, the rate of deposition is computed through the Fick s law after solving the species transport equation for the solid phase. We included the formation of the soot layer through moving the gas solid interface in both models. The tube effectiveness (the ratio of actual heat transfer to the maximum possible heat transfer) decreases due to the formation of the layer. Model outputs including deposited mass along the tube wall and the tube effectiveness drop have been compared against experiments. While the computed results through both models agree with the trend of experimental data, the axi-symmetric results are closer to the experiments in most cases. The calculated deposited mass is smaller (and closer to experiments) for the axi-symmetric model compared to the one dimensional model in all cases. This indicates that the axi-symmetric model estimates the deposited mass more accurately.

Abarham, Mehdi [University of Michigan; Zamankhan, Parsa [University of Michigan; Hoard, John W. [University of Michigan; Styles, Dan [Ford Motor Company; Sluder, Scott [ORNL; Storey, John Morse [ORNL; Lance, Michael J [ORNL; Assanis, Dennis [University of Michigan

2013-01-01T23:59:59.000Z

135

Electron Beam Instability in Left-Handed Media  

E-Print Network (OSTI)

We predict that two electron beams can develop an instability when passing through a slab of left-handed media (LHM). This instability, which is inherent only for LHM, originates from the backward Cherenkov radiation and results in a self-modulation of the beams and radiation of electromagnetic waves. These waves leave the sample via the rear surface of the slab (the beam injection plane) and form two shifted bright circles centered at the beams. A simulated spectrum of radiation has well-separated lines on top of a broad continuous spectrum, which indicates dynamical chaos in the system. The radiation intensity and its spectrum can be controlled either by the beams' current or by the distance between the two beams.

Yury P. Bliokh; Sergey Savel'ev; Franco Nori

2008-04-08T23:59:59.000Z

136

Low scale left-right symmetry and warm dark matter  

SciTech Connect

We study the scenario which incorporates dark matter in the minimal left-right symmetric theory at the TeV scale. The only viable candidate is found to be the lightest right-handed neutrino with a mass of keV. In order to satisfy the dark matter relic abundance, the relic yield is diluted by late decays of the two heavier neutrinos. We point out that the QCD phase transition temperature coincidences with the typical freeze-out temperature governed by super-weak right-handed interactions. This helps to alleviate the problem of overproduction and a careful numerical study reveals a narrow window for the mass of the right-handed gauge boson, which is within the reach of the LHC.

Nemevsek, Miha [ICTP, Strada Costiera 11, 34151 Trieste (Italy)

2013-05-23T23:59:59.000Z

137

Rapture rhetoric: prophetic epistemology of the Left Behind subculture  

E-Print Network (OSTI)

This thesis provides a rhetorical analysis of prophetic texts, non-fiction premillennialist dispensational studies, the fictional series, Left Behind and interviews with series readers. This thesis argues that prophetic rhetoric constitutes an epistemological position whereby Rapture believers create knowledge, cast knowledge as good or evil and finally act as gatekeepers to determine what can and should be known. Rapture subculture is composed of both a hard core and a set of narrative believers, those who have acquired the nomenclature, but perhaps not the dogmatic belief in a Rapture, Tribulation, Armageddon, and Millennium schema. The process of turning narrative believers into hard core believers relies on the use of a range of topoi, appeals to authority, evil and time. Rapture rhetoric, aimed at bolstering the beliefs of the hard core and cultivating the beliefs of those still undecided, relies on the process of transfer to gain acceptance for one claim based on acceptance of another and then relies on narrative plasticity to enlarge the basis for those accepted claims. These arguments are exchanged for stories in the fictional Left Behind series, whereby the characters, institutions and knowledge of the end-times becomes encapsulated in an easy-to-read and simple-to-relate tale that codes knowledge as either good knowledge revealed from God or evil knowledge acquired through human understanding. These narratives and arguments both get used among prophetic believers to explain their lives and their world, internally and externally to the prophetic subculture, in order to convince more narrative believers of the truth of their claims. Prophetic communities develop knowledge products, cultural entailments and cultural manifestations of prophetic belief to serve as symbols of the end-times narrative. Rapture subculture, based on prophetic beliefs, is not monolithic; however, this thesis is able to draw some broad generalizations about the prophetic community and the rhetoric they use to explain their claims within their ranks and to the outside world.

Hill, Kristin Dawn

2007-08-01T23:59:59.000Z

138

Fabrication and redesign of a meso-scale six-axis nano-positioner system  

E-Print Network (OSTI)

The industry's need for low-cost nano-positioners led MIT's Precision Compliant Systems lab to design a system of 10 six-axis meso-scale nano-positioners. They devised a system that could revolutionize the nano-scale ...

Telleria, Maria J

2008-01-01T23:59:59.000Z

139

Vertical axis wind turbine development. Executive summary. Final report, March 1, 1976-June 30, 1977  

DOE Green Energy (OSTI)

Information is presented concerning the numerical solution of the aerodynamics of cross-flow wind turbines; boundary layer considerations for a vertical axis wind turbine; WVU VAWT outdoor test model; low solidity blade tests; high solidity blade design; cost analysis of the WVU VAWT test model; structural parametric analysis of VAWT blades; and cost study of current WECS.

Walters, R. E.; Fanucci, J. B.; Hill, P. W.; Migliore, P. G.

1979-07-01T23:59:59.000Z

140

WIND-TUNNEL STUDY ON AERODYNAMIC PERFORMANCE OF SMALL VERTICAL-AXIS WIND TURBINES  

E-Print Network (OSTI)

of a building was explored [2]. Referred to such applications, a VAWT can be so small in physical size that its by the present authors to study the aerodynamic performance of small VAWTs using the experimental and numerical1 WIND-TUNNEL STUDY ON AERODYNAMIC PERFORMANCE OF SMALL VERTICAL-AXIS WIND TURBINES J. J. Miau*1

Leu, Tzong-Shyng "Jeremy"

Note: This page contains sample records for the topic "left axis wti" 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

Design and Construction of a Two-axis Sun Tracking Control System Based on STM32  

Science Conference Proceedings (OSTI)

In this paper, a two-axis sun tracking control system based on STM32 was designed and constructed. Which combined the use of the reliable programming method under normal circs and the precise method based on the sensors if the tracking error under abnormal. ... Keywords: Solor energy, Sun tracking control system, STM32

Dazhai Li, Mian Guo

2012-07-01T23:59:59.000Z

142

Test plan for the 34 meter vertical axis wind turbine test bed located at Bushland, Texas  

DOE Green Energy (OSTI)

A plan is presented for the testing and evaluation of a new 500 kw vertical axis wind turbine test bed. The plan starts with the initial measurements made during construction, proceeds through evaluation of the design, the development of control methods, and finally to the test bed phase where new concepts are evaluated and in-depth studies are performed.

Stephenson, W.A.

1986-12-01T23:59:59.000Z

143

Sandia Vertical-Axis Wind Turbine Program. Technical quarterly report, July--September 1976. [USA  

DOE Green Energy (OSTI)

This quarterly report describes the activities of the Sandia Laboratories' Vertical-Axis Wind Turbine (VAWT) project during the period July to September 1976, transitional quarter of fiscal year 1976. Included are the highlights of the quarter; review of the status of general design efforts in the areas of aerodynamics, structures, and testing.

Grover, R.D.; Veneruso, A.F. (eds.)

1977-06-01T23:59:59.000Z

144

Rotation Angle for the Optimum Tracking of One-Axis Trackers  

DOE Green Energy (OSTI)

An equation for the rotation angle for optimum tracking of one-axis trackers is derived along with equations giving the relationships between the rotation angle and the surface tilt and azimuth angles. These equations are useful for improved modeling of the solar radiation available to a collector with tracking constraints and for determining the appropriate motor revolutions for optimum tracking.

Marion, W. F.; Dobos, A. P.

2013-07-01T23:59:59.000Z

145

Neutralino dark matter in the left-right supersymmetric model  

SciTech Connect

We study the neutralino sector of the left-right supersymmetric model. In addition to the possibilities available in the minimal supersymmetric model, the neutralino states can be superpartners of the U(1){sub B-L} gauge boson, the neutral SU(2){sub R} gauge boson, or of the Higgs triplets. We analyze neutralino masses and determine the parameter regions for which the lightest neutralino can be one of the new pure states. We then calculate the relic density of the dark matter for each of these states and impose the constraints coming from the {rho} parameter, the anomalous magnetic moment of the muon, b{yields}s{gamma}, as well as general supersymmetric mass bounds. The lightest neutralino can be the bino, or the right-wino, or the neutral triplet Higgsino, all of which have different couplings to the standard model particles from the usual neutralinos. A light bino satisfies all the experimental constraints and would be the preferred dark matter candidate for light supersymmetric scalar masses, while the right-wino would be favored by intermediate supersymmetric mass scales. The neutral triplet Higgs fermion satisfies the experimental bounds only in a small region of the parameter space, for intermediate to heavy supersymmetric scalar masses.

Demir, Durmus A. [Department of Physics, Izmir Institute of Technology, IZTECH, TR35430, Izmir (Turkey); Frank, Mariana; Turan, Ismail [Department of Physics, Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec, H4B 1R6 (Canada)

2006-06-01T23:59:59.000Z

146

This page intentionally left blank. California Solar Initiative, CPUC Staff Progress Report, April 2008 2  

E-Print Network (OSTI)

#12;This page intentionally left blank. California Solar Initiative, CPUC Staff Progress Report................................................................................................................ 5 2. Go Solar California! Overview............................................................................................... 8 2.1 California Solar Initiative Program History

147

Effects of blade configurations on flow distribution and power output of a Zephyr vertical axis wind turbine  

Science Conference Proceedings (OSTI)

Numerical simulations with FLUENT software were conducted to investigate the fluid flow through a novel vertical axis wind turbine (VAWT). Simulation of flow through the turbine rotor was performed with the aim of predicting the performance characteristics ... Keywords: blade configuration, power output, rotor, simulation, vertical axis wind turbine

J. O. Ajedegba; G. F. Naterer; M. A. Rosen; E. Tsang

2008-02-01T23:59:59.000Z

148

ANL/APS/TB-32 Test of Horizontal Field Measurements Using Two-Axis Hall  

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

2 2 Test of Horizontal Field Measurements Using Two-Axis Hall Probes at the APS Magnetic Measurement Facility I. Vasserman Advanced Photon Source Argonne National Laboratory Argonne, IL 60439 1. Introduction The free-electron laser (FEL) project at the Advanced Photon Source (APS) will use a 400-MeV particle beam from the APS linac with RMS beam transverse size of 100 µm and requires very high performance of the insertion devices in order to achieve high intensity radiation. Averaged over period, the trajectory must deviate from the ideal on-axis trajectory by not more than 10% of the RMS beam size. Meaning that the second field integral should be straight within ±1300 G-cm 2 over the length of the device for both horizontal and vertical directions for the 400-MeV particle

149

Tracking formulas and strategies for a receiver oriented dual-axis tracking toroidal heliostat  

SciTech Connect

A 4 m x 4 m toroidal heliostat with receiver oriented dual-axis tracking, also called spinning-elevation tracking, was developed as an auxiliary heat source for a hydrogen production system. A series of spinning-elevation tracking formulas have been derived for this heliostat. This included basic tracking formulas, a formula for the elevation angle for heliostat with a mirror-pivot offset, and a more general formula for the biased elevation angle. This paper presents the new tracking formulas in detail and analyzes the accuracy of applying a simplifying approximation. The numerical results show these receiver oriented dual-axis tracking formula approximations are accurate to within 2.5 x 10{sup -6} m in image plane. Some practical tracking strategies are discussed briefly. Solar images from the toroidal heliostat at selected times are also presented. (author)

Guo, Minghuan; Wang, Zhifeng; Liang, Wenfeng; Zhang, Xiliang; Zang, Chuncheng [Key Laboratory of Solar Thermal Energy and Photovoltaic System of Chinese Academy of Sciences, Institute of Electrical Engineering, Beijing 100190 (China); Lu, Zhenwu; Wei, Xiudong [Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences (CAS), Jilin 130033 (China)

2010-06-15T23:59:59.000Z

150

Fish schooling as a basis for vertical axis wind turbine farm design  

E-Print Network (OSTI)

Most wind farms consist of horizontal axis wind turbines (HAWTs) due to the high power coefficient (mechanical power output divided by the power of the free-stream air through the turbine cross-sectional area) of an isolated turbine. However when in close proximity to neighbouring turbines, HAWTs suffer from a reduced power coefficient. In contrast, previous research on vertical axis wind turbines (VAWTs) suggests that closely-spaced VAWTs may experience only small decreases (or even increases) in an individual turbine's power coefficient when placed in close proximity to neighbours, thus yielding much higher power outputs for a given area of land. A potential flow model of inter-VAWT interactions is developed to investigate the effect of changes in VAWT spatial arrangement on the array performance coefficient, which compares the expected average power coefficient of turbines in an array to a spatially-isolated turbine. A geometric arrangement based on the configuration of shed vortices in the wake of schooli...

Whittlesey, Robert W; Dabiri, John O

2010-01-01T23:59:59.000Z

151

Axi-symmetrical flow reactor for .sup.196 Hg photochemical enrichment  

DOE Patents (OSTI)

The present invention is directed to an improved photochemical reactor useful for the isotopic enrichment of a predetermined isotope of mercury, especially, .sup.196 Hg. Specifically, two axi-symmetrical flow reactors were constructed according to the teachings of the present invention. These reactors improve the mixing of the reactants during the photochemical enrichment process, affording higher yields of the desired .sup.196 Hg product. Measurements of the variation of yield (Y) and enrichment factor (E) along the flow axis of these reactors indicates very substantial improvement in process uniformity compared to previously used photochemical reactor systems. In one preferred embodiment of the present invention, the photoreactor system was built such that the reactor chamber was removable from the system without disturbing the location of either the photochemical lamp or the filter employed therewith.

Grossman, Mark W. (Belmont, MA)

1991-01-01T23:59:59.000Z

152

United States Air Force Academy (USAFA) Vertical Axis Wind Turbine. Final report May 77-Sep 80  

Science Conference Proceedings (OSTI)

This report describes the design, fabrication, installation and testing of a small variable-speed vertical axis wind turbine (VAWT). This VAWT is unique in its installation using hand tools only; unconventional and simple support system; and variable speed operation under microprocessor control. Initial testing confirmed that the turbine can be controlled by commanded alternator field modulation. Further studies will be directed toward determination of an optimum control algorithm.

Kullgren, T.E.; Wiedemeier, D.W.

1980-09-01T23:59:59.000Z

153

Method and apparatus for maintaining equilibrium in a helical axis stellarator  

DOE Patents (OSTI)

Apparatus for maintaining three-dimensional MHD equilibrium in a plasma contained in a helical axis stellarator includes a resonant coil system, having a configuration such that current therethrough generates a magnetic field cancelling the resonant magnetic field produced by currents driven by the plasma pressure on any given flux surface resonating with the rotational transform of another flux surface in the plasma. Current through the resonant coil system is adjusted as a function of plasma beta.

Reiman, A.; Boozer, A.

1984-10-31T23:59:59.000Z

154

Path placement optimization of manipulators based on energy consumption: application to the orthoglide 3-axis  

E-Print Network (OSTI)

This paper deals with the optimal path placement for a manipulator based on energy consumption. It proposes a methodology to determine the optimal location of a given test path within the workspace of a manipulator with minimal electric energy used by the actuators while taking into account the geometric, kinematic and dynamic constraints. The proposed methodology is applied to the Orthoglide~3-axis, a three-degree-of-freedom translational parallel kinematic machine (PKM), as an illustrative example.

Ur-Rehman, Raza; Chablat, Damien; Wenger, Philippe

2009-01-01T23:59:59.000Z

155

Method and apparatus for maintaining equilibrium in a helical axis stellarator  

DOE Patents (OSTI)

Apparatus for maintaining three-dimensional MHD equilibrium in a plasma contained in a helical axis stellerator includes a resonant coil system, having a configuration such that current therethrough generates a magnetic field cancelling the resonant magnetic field produced by currents driven by the plasma pressure on any given flux surface resonating with the rotational transform of another flux surface in the plasma. Current through the resonant coil system is adjusted as a function of plasma beta.

Reiman, Allan (Princeton, NJ); Boozer, Allen (Rocky Hill, NJ)

1987-01-01T23:59:59.000Z

156

Review of wind simulation methods for horizontal-axis wind turbine analysis  

DOE Green Energy (OSTI)

This report reviews three reports on simulation of winds for use in wind turbine fatigue analysis. The three reports are presumed to represent the state of the art. The Purdue and Sandia methods simulate correlated wind data at two points rotating as on the rotor of a horizontal-axis wind turbine. The PNL method at present simulates only one point, which rotates either as on a horizontal-axis wind turbine blade or as on a vertical-axis wind turbine blade. The spectra of simulated data are presented from the Sandia and PNL models under comparable input conditions, and the energy calculated in the rotational spikes in the spectra by the two models is compared. Although agreement between the two methods is not impressive at this time, improvement of the Sandia and PNL methods is recommended as the best way to advance the state of the art. Physical deficiencies of the models are cited in the report and technical recommendations are made for improvement. The report also reviews two general methods for simulating single-point data, called the harmonic method and the white noise method. The harmonic method, which is the basis of all three specific methods reviewed, is recommended over the white noise method in simulating winds for wind turbine analysis.

Powell, D.C.; Connell, J.R.

1986-06-01T23:59:59.000Z

157

IC-EpsMsO NUMERICAL SIMULATION IN VERTICAL WIND AXIS TURBINE WITH PITCH  

E-Print Network (OSTI)

energy, pitch controlled blades Abstract: Wind energy is more and more used as a renewable energy source character. The present wind turbine is a small one which allows to be used on roofs or in gardens to light small areas like publicity boards, parking, roads or for water pumping, heating... The present turbine has a vertical axis. Each turbine blade combines a rotating movement around its own axis and around the main rotor axis. Due to this combination of movements, flow around this turbine is highly unsteady and needs to be modeled by unsteady calculation. One of the main problems of such geometry is to simulate the two combined movements. The present work is an extended study of ones made in 2009. In the previous study, some results like contours of pressure and velocity fields were presented for elliptic blades for one specific constant rotational speed and benefits of combined rotating blades was shown. The present paper points up the influence of two different blades geometries for different rotational speeds, different blade stagger angles and different Reynolds numbers related to a wider range of wind speeds. 1

Controlled Blades; Bayeul-lain Annie-claude; Dockter Aurore; Bois Grard; Simonet Sophie

2013-01-01T23:59:59.000Z

158

An off-axis Cassegrain optimal design for short focal length parabolic solar concentrators  

SciTech Connect

The present work addresses an off-axis Cassegrain optical concentration system. The specific primary collector analyzed, a short focal length parabolic concentrator, is at the University of Florida`s Energy Park. A secondary hyperbolic reflective element was designed to redirect the solar radiation from the primary focal plane to an off-axis target on the polar axis of the primary concentrator. This ground level target will be required for planned experimental work. The analysis was performed using a numerical ray tracing procedure that incorporates both random and systematic errors due to slope and surface irregularities. The optimization process varied secondary element size, curvature, and offset angle, and yielded information required for optimum design. As a single secondary element was found impractical, three elements were designed for use at various time of the year. The numerical analysis predicts that typically 70 to 75 percent of the solar flux incident on the primary concentrator aperture was focused within a 0.5-meter radius. During the design, it was found that this type of compact concentration system is a practical alternative. The optical system is also shown to have advantages that are generally applicable for problems involving short focal length primary concentrators, or when the solar apparatus is to be placed outside the primary collector aperture.

Roman, R.J.; Peterson, J.E.; Goswami, D.Y. [Univ. of Florida, Gainesville, FL (United States). Dept. of Mechanical Engineering

1995-02-01T23:59:59.000Z

159

Black Dwarf Black Dwarf Black Dwarf Dark core of a low mass star left when  

E-Print Network (OSTI)

Black Dwarf Black Dwarf Black Dwarf Dark core of a low mass star left when a white dwarf cools. Black dwarfs disappear from view. Mass: 0.5 - 1.4 SM StarPower Points: 1 Dark core of a low mass star left when a white dwarf cools. Black dwarfs, like the charcoal briquette pictured in the sky, are made

Bechtold, Jill

160

Automatic segmentation of the left ventricle cavity and myocardium in MRI data  

Science Conference Proceedings (OSTI)

A novel approach for the automatic segmentation has been developed to extract the epi-cardium and endo-cardium boundaries of the left ventricle (lv) of the heart. The developed segmentation scheme takes multi-slice and multi-phase magnetic resonance ... Keywords: Clustering, Left ventricle, Level-set, MRI, Myocardium, Segmentation

M. Lynch; O. Ghita; P. F. Whelan

2006-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "left axis wti" 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

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.

162

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

163

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.

164

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 ...

165

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

166

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

167

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. ...

168

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, ...

169

Knot Undulator to Generate Linearly Polarized Photons with Low on-Axis Power Density  

SciTech Connect

Heat load on beamline optics is a serious problem to generate pure linearly polarized photons in the third generation synchrotron radiation facilities. For permanent magnet undulators, this problem can be overcome by a figure-8 operating mode. But there is still no good method to tackle this problem for electromagnetic elliptical undulators. Here, a novel operating mode is suggested, which can generate pure linearly polarized photons with very low on-axis heat load. Also the available minimum photon energy of linearly polarized photons can be extended much by this method.

Qiao, S.; /Stanford U., Appl. Phys. Dept. /SLAC, SSRL /LBNL, ALS /Fudan U.; Ma, De-wei; Feng, Dong-lai; /Fudan U.; Hussain, Z.; /LBNL, ALS; Shen, Z.-X.; /Stanford U., Appl. Phys. Dept. /SLAC, SSRL

2009-06-19T23:59:59.000Z

170

Effect of various errors on the Spin Tune and Stable Spin Axis  

DOE Green Energy (OSTI)

Even though RHIC has two full Siberian snakes in each ring, there are various perturbations to the ideal case including orbit errors at the snakes, experiment solenoids, injection bumps, and interlaced horizontal-vertical bumps at the hydrogen jet polarimeter. These errors can cause depolarization by shifting the spin tune and tilting the stable spin direction away from vertical. Tilting of the stable spin axis can enhance horizontal depolarizing resonances. This paper presents preliminary results for some of these error scenarios, as well as their impact on the stable spin directions at STAR and PHENIX.

MacKay,W.W.

2008-10-06T23:59:59.000Z

171

Effect of Various Errors on the Spin Tune and Stable Spin Axis  

DOE Green Energy (OSTI)

Even though RHIC has two full Siberian snakes in each ring, there are various perturbations to the ideal case including orbit errors at the snakes, experiment solenoids, injection bumps, and interlaced horizontal-vertical bumps at the hydrogen jet polarimeter. These errors can cause depolarization by shifting the spin tune and tilting the stable spin direction away from vertical. Tilting of the stable spin axis can enhance horizontal depolarizing resonances. This paper presents preliminary results for some of these error scenarios, as well as their impact on the stable spin directions at STAR and PHENIX.

MacKay,W.W.

2009-01-01T23:59:59.000Z

172

SHADE: a computer model for evaluating the optical performance of two-axis tracking parabolic concentrators  

DOE Green Energy (OSTI)

A computer model SHADE (Selection of Heliostat Arrangement for Distributed Engines) has been developed at the Pacific Northwest Laboratory to aid in determining the optical performance of two-axis tracking parabolic concentrators. The shading of individual mirror assemblies in a field of parabolic dishes determines the optimal field arrangement and the most efficient method of plant operation. SHADE provides a simple and inexpensive analytical tool for examining certain design aspects of solar thermal power systems using a network of point-focusing parabolic concentrators.

Apley, W. J.

1979-05-01T23:59:59.000Z

173

Proceedings of the vertical axis wind turbine (VAWT) design technology seminar for industry  

Science Conference Proceedings (OSTI)

The objective of the Vertical Axis Wind Turbine (VAWT) Program at Sandia National Laboratories is to develop technology that results in economical, industry-produced, and commercially marketable wind energy systems. The purpose of the VAWT Design Technology Seminar or Industry was to provide for the exchange of the current state-of-the-art and predictions for future VAWT technology. Emphasis was placed on technology transfer on Sandia's technical developments and on defining the available analytic and design tools. Separate abstracts are included for presented papers.

Johnston, S.F. Jr. (ed.)

1980-08-01T23:59:59.000Z

174

Validated, unified model for optics and heat transfer in line-axis concentrating solar energy collectors  

SciTech Connect

A rigorous numerical simulation model for the prediction of the combined optical and thermofluid behaviour of line-axis concentrating solar energy collectors combines two-dimensional steady-state finite element analysis of convective heat transfer and ray-trace techniques. The optical analysis considers both direct and diffuse insolation components and is therefore useful for the analysis of compound parabolic concentrating collectors. Experiments using Mach-Zehnder interferometry indicate a parametric range for which such a two-dimensional representation is valid.

Eames, P.C.; Norton, B. (Univ. of Ulster (United Kingdom))

1993-04-01T23:59:59.000Z

175

Proceedings of the Vertical-Axis Wind Turbine Technology Workshop, Albuquerque, New Mexico, May 18--20, 1976  

DOE Green Energy (OSTI)

Separate abstracts are included for twenty-nine of the thirty papers presented concerning vertical axis wind turbines. One paper has previously been abstracted and included in the ERDA Energy Data Base and Energy Research Abstracts journal.

Not Available

1976-07-01T23:59:59.000Z

176

Evaluation of a Triple-Axis Coherent Doppler Velocity Profiler for Measuring Near-Bed Flow: A Field Study  

Science Conference Proceedings (OSTI)

Collocated detailed measurements of near-bed turbulent and intrawave flow are important for studying sediment transport processes and seabed evolution. Existing commercially available triple-axis profiling instruments do not provide collocated ...

K. F. E. Betteridge; P. S. Bell; P. D. Thorne; J. J. Williams

2006-01-01T23:59:59.000Z

177

Rectification of the chordal axis transform and a new criterion for shape decomposition.  

SciTech Connect

In an earlier work we proposed the chordal axis transform (CAT) as a more useful alternative to the medial axis transform (MAT) for obtaining skeletons of discrete shapes. Since then, the CAT has benefited various applications in 2D and 3D shape analysis. In this paper, we revisit the CAT to address its deficiencies that are an artifact of the underlying constrained Delaunay triangulation (CDT). We introduce a valuation on the internal edges of a discrete shape's CDT based on a concept of approximate co-circularity. This valuation provides a basis for suppression of the role of certain edges in the construction of the CAT skeleton. The result is a rectified CAT skeleton that has smoother branches as well as branch points of varying degrees, unlike the original CAT skeleton whose branches exhibit oscillations in tapered sections of shapes and allows only degree 3 branch points. Additionally, the valuation leads to a new criterion for parsing shapes into visually salient parts that closely resemble the empirical decompositions of shapes by human subjects as recorded in experiments by M. Singh, G. Seyranian, and D. Hoffinan.

Prasad, Lakshman

2004-01-01T23:59:59.000Z

178

Simulation of winds as seen by a rotating vertical axis wind turbine blade  

DOE Green Energy (OSTI)

The objective of this report is to provide turbulent wind analyses relevant to the design and testing of Vertical Axis Wind Turbines (VAWT). A technique was developed for utilizing high-speed turbulence wind data from a line of seven anemometers at a single level to simulate the wind seen by a rotating VAWT blade. Twelve data cases, representing a range of wind speeds and stability classes, were selected from the large volume of data available from the Clayton, New Mexico, Vertical Plane Array (VPA) project. Simulations were run of the rotationally sampled wind speed relative to the earth, as well as the tangential and radial wind speeds, which are relative to the rotating wind turbine blade. Spectral analysis is used to compare and assess wind simulations from the different wind regimes, as well as from alternate wind measurement techniques. The variance in the wind speed at frequencies at or above the blade rotation rate is computed for all cases, and is used to quantitatively compare the VAWT simulations with Horizontal Axis Wind Turbine (HAWT) simulations. Qualitative comparisons are also made with direct wind measurements from a VAWT blade.

George, R.L.

1984-02-01T23:59:59.000Z

179

Detection and Interpretation of Left-Moving Severe Thunderstorms Using the WSR-88D: A Case Study  

Science Conference Proceedings (OSTI)

Left-moving supercells, which rotate anticyclonically, are much less common than their right-moving counterparts but are nevertheless capable of producing severe weather. On 26 May 1992, a severe left-moving thunderstorm over east Texas developed ...

John W. Nielsen-Gammon; William L. Read

1995-03-01T23:59:59.000Z

180

LEFT VERSUS RIGHT HEMISPHERE DIFFERENCES IN BRAIN CONNECTIVITY: 4-TESLA HARDI TRACTOGRAPHY IN 569 TWINS  

E-Print Network (OSTI)

LEFT VERSUS RIGHT HEMISPHERE DIFFERENCES IN BRAIN CONNECTIVITY: 4-TESLA HARDI TRACTOGRAPHY IN 569) and 112 adolescents (age 12-16) with 4-Tesla 105-gradient high- angular resolution diffusion imaging. We

Thompson, Paul

Note: This page contains sample records for the topic "left axis wti" 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

The left posterior superior temporal gyrus participates specifically in accessing lexical phonology  

Science Conference Proceedings (OSTI)

Impairments in phonological processing have been associated with damage to the region of the left posterior superior temporal gyrus (pSTG), but the extent to which this area supports phonological processing, independent of semantic processing, is less ...

William W. Graves; Thomas J. Grabowski; Sonya Mehta; Prahlad Gupta

2008-09-01T23:59:59.000Z

182

Determination of three-dimensional left ventricle motion to analyze ventricular dyssyncrony in SPECT images  

Science Conference Proceedings (OSTI)

A method to compute three-dimension (3D) left ventricle (LV) motion and its color coded visualization scheme for the qualitative analysis in SPECT images is proposed. It is used to investigate some aspects of Cardiac Resynchronization Therapy (CRT). ...

Marina De S Rebelo; Ann Kirstine Hummelgaard Aarre; Karen-Louise Clemmesen; Simone Cristina Soares Brando; Maria Clementina Giorgi; Jos Cludio Meneghetti; Marco Antonio Gutierrez

2010-01-01T23:59:59.000Z

183

An exploration on long-distance communications between left-behind children and their parents in China  

Science Conference Proceedings (OSTI)

In China, hundreds of millions of migrant workers have moved to cities or coastal regions for more or better-paid jobs and have left their children behind at their rural homes. Separated by thousands of kilometers, these "left-behind" children and their ... Keywords: left-behind children, long-distance communication, mobile mediated contact

Lu Pan; Feng Tian; Fei Lu; Xiaolong (Luke) Zhang; Ying Liu; Wenxin Feng; Guozhong Dai; Hongan Wang

2013-02-01T23:59:59.000Z

184

On-Axis Brilliance and Power of In-Vacuum Undulators for The Advanced Photon Source  

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

4 4 On-Axis Brilliance and Power of In-Vacuum Undulators for the Advanced Photon Source (formerly MD-TN-2009-004) R. Dejus, M. Jaski, and S.H. Kim - MD Group/ASD Rev. 1, November 25, 2009: Updated the fitted B eff in Tables 1 - 3, and 5 to use two decimals in the fitted equation. Explained chosen gaps. Added clarifications in the text and added additional references. Edited by C. Eyberger for release as cleared document ANL/APS/LS-314; updated in ICMS. Rev. 0a, June 17, 2009: ICMS Initial Release (minor clarifications and corrections of typographical errors, added footnote "d" to Table 4). Rev. 0, June 16, 2009: First Release as Technical Note MD-TN-2009-004. Table of Contents Introduction ......................................................................................................................... 2

185

Vertical axis wind turbine power regulation through centrifugally pumped lift spoiling  

Science Conference Proceedings (OSTI)

This paper describes an approach for lowering the rated windspeeds of Darrieus-type vertical axis wind turbines (VAWTs) whose blades are hollow aluminum extrusions. The blades, which when rotating act as centrifugal pumps, are fitted with a series of small perforations distributed along a portion of the blades' span. By valving the ends of the hollow blades, flow into the blade ends and out of the perforations may be controlled. This flow can induce premature aerodynamic stall on the blade elements, thereby reducing both the rated power of the turbine and its cost-of-energy. The concept has been proven on the Sandia National Laboratories 5-m diameter research VAWT and force balance and flow visualization wind tunnel tests have been conducted using a blade section designed for the VAWT application.

Klimas, P.C.; Sladky, J.F. Jr.

1985-01-01T23:59:59.000Z

186

Customized airfoils and their impact on VAWT (Vertical-Axis Wind Turbine) cost of energy  

DOE Green Energy (OSTI)

Sandia National Laboratories has developed a family of airfoils specifically designed for use in the equatorial portion of a Vertical-Axis Wind Turbine (VAWT) blade. An airfoil of that family has been incorporated into the rotor blades of the DOE/Sandia 34-m diameter VAWT Test Bed. The airfoil and rotor design process is reviewed. Comparisons with data recently acquired from flow visualization tests and from the DOE/Sandia 34-m diameter VAWT Test Bed illustrate the success that was achieved in the design. The economic optimization model used in the design is described and used to evaluate the effect of modifications to the current Test Bed blade. 1 tab., 11 figs., 13 refs.

Berg, D.E.

1990-01-01T23:59:59.000Z

187

An In-Situ Three-Axis Magnetometer for Cold Atom Experiments  

E-Print Network (OSTI)

Quantum control of atomic spins requires precise control of the magnetic fields that couple to the associated magnetic moments. This makes accurate cancellation of the (generally time dependent) background magnetic field an important limiting factor in real-world control experiments. We describe a technique that uses the spins themselves to measure DC and AC power line components of the background field independently along three orthogonal axes, with a resolution of a few tens of {\\mu}G in a bandwidth of ~ 1kHz. Once measured, the background field can be canceled with three pairs of compensating coils driven by arbitrary waveform generators. In our laboratory, the magnetic field environment is sufficiently stable for the procedure to reduce the field along each axis to less than ~50{\\mu}G rms, corresponding to a suppression of the AC part by about one order of magnitude.

Smith, Aaron; Chaudhury, Souma; Jessen, Poul S

2011-01-01T23:59:59.000Z

188

Innovative wind turbines. Circulation controlled vertical axis wind turbine. Progress report, March 1-December 31, 1976  

DOE Green Energy (OSTI)

Theoretical and experimental research efforts in evaluating an innovative concept for vertical axis wind turbines (VAWT) are described. The concept is that of using straight blades composed of circulation controlled airfoil sections. The theoretical analysis has been developed to determine the unsteady lift and moment characteristics of multiple-blade cross-flow wind turbines. To determine the drag data needed as input to the theoretical analysis, an outdoor test model VAWT has been constructed; design details, instrumentation, and calibration results are reported. Initial testing is with fixed pitch blades having cross-sections of conventional symmetrical airfoils. Costs of building the test model are included, as well as estimates for blades constructed with composite materials. These costs are compared with those of other types of wind turbines.

Walters, R. E.; Fanucci, J. B.; Hill, P. W.; Migliore, P. G.; Squire, W.; Waltz, T. L.

1978-10-01T23:59:59.000Z

189

Vertical axis wind turbine development. Final report, March 1, 1976-June 30, 1977  

DOE Green Energy (OSTI)

Theoretical and experimental research accomplished in evaluating an innovative concept for vertical axis wind turbines (VAWT) is described. The concept is that of using straight blades composed of circulation controlled airfoil sections. The theoretical analysis has been developed to determine the unsteady lift and moment characteristics of multiple-blade cross-flow wind turbines. To determine the drag data needed as input to the theoretical analysis, an outdoor test model VAWT has been constructed; design details, instrumentation, calibration results, and initial test results are reported. Initial testing was with fixed pitch blades having cross-sections of conventional symmetrical airfoils. Costs of building the test model are included, as well as cost estimates for blades constructed with composite materials. These costs are compared with those of other types of wind turbines.

Walters, R. E.; Fanucci, J. B.; Hill, P. W.; Migliore, P. G.

1979-07-01T23:59:59.000Z

190

Theoretical and experimental power from large horizontal-axis wind turbines  

SciTech Connect

A method for calculating the output power from large horizontal-axis wind turbines is presented. Modifications to the airfoil characteristics and the momentum portion of classical blade element-momentum theory are given that improve correlation with measured data. Improvement is particularly evident at low tip speed ratios where aerodynamic stall can occur as the blade experiences high angles of attack. Output power calculated using the modified theory is compared with measured data for several large wind turbines. These wind turbines range in size from the DOE/NASA 100 kW Mod-O (38 m rotor diameter) to the 2000 kW Mod-1 (61 m rotor diameter). The calculated results are in good agreement with measured data from these machines.

Viterna, L A; Janetzke, D C

1982-09-01T23:59:59.000Z

191

Energy and angular momentum of general 4-dimensional stationary axi-symmetric spacetime in teleparallel geometry  

E-Print Network (OSTI)

We derive an exact general axi-symmetric solution of the coupled gravitational and electromagnetic fields in the tetrad theory of gravitation. The solution is characterized by four parameters $M$ (mass), $Q$ (charge), $a$ (rotation) and $L$ (NUT). We then, calculate the total exterior energy using the energy-momentum complex given by M{\\o}ller in the framework of Weitzenb$\\ddot{o}$ck geometry. We show that the energy contained in a sphere is shared by its interior as well as exterior. We also calculate the components of the spatial momentum to evaluate the angular momentum distribution. We show that the only non-vanishing components of the angular momentum is in the Z direction.

Gamal Gergess Lamee Nashed

2008-01-23T23:59:59.000Z

192

Combined Experiment Phase 1. [Horizontal axis wind turbines: wind tunnel testing versus field testing  

DOE Green Energy (OSTI)

How does wind tunnel airfoil data differ from the airfoil performance on an operating horizontal axis wind turbine (HAWT) The National Renewable Energy laboratory has been conducting a comprehensive test program focused on answering this question and understanding the basic fluid mechanics of rotating HAWT stall aerodynamics. The basic approach was to instrument a wind rotor, using an airfoil that was well documented by wind tunnel tests, and measure operating pressure distributions on the rotating blade. Based an the integrated values of the pressure data, airfoil performance coefficients were obtained, and comparisons were made between the rotating data and the wind tunnel data. Care was taken to the aerodynamic and geometric differences between the rotating and the wind tunnel models. This is the first of two reports describing the Combined Experiment Program and its results. This Phase I report covers background information such as test setup and instrumentation. It also includes wind tunnel test results and roughness testing.

Butterfield, C.P.; Musial, W.P.; Simms, D.A.

1992-10-01T23:59:59.000Z

193

Electron cyclotron resonance near the axis of the gas-dynamic trap  

SciTech Connect

Propagation of an extraordinary electromagnetic wave in the vicinity of electron cyclotron resonance surface in an open linear trap is studied analytically, taking into account inhomogeneity of the magnetic field in paraxial approximation. Ray trajectories are derived from a reduced dispersion equation that makes it possible to avoid the difficulty associated with a transition from large propagation angles to the case of strictly longitudinal propagation. Our approach is based on the theory, originally developed by Zvonkov and Timofeev [Sov. J. Plasma Phys. 14, 743 (1988)], who used the paraxial approximation for the magnetic field strength, but did not consider the slope of the magnetic field lines, which led to considerable error, as has been recently noted by Gospodchikov and Smolyakova [Plasma Phys. Rep. 37, 768-774 (2011)]. We have found ray trajectories in analytic form and demonstrated that the inhomogeneity of both the magnetic field strength and the field direction can qualitatively change the picture of wave propagation and significantly affect the efficiency of electron cyclotron heating of a plasma in a linear magnetic trap. Analysis of the ray trajectories has revealed a criterion for the resonance point on the axis of the trap to be an attractor for the ray trajectories. It is also shown that a family of ray trajectories can still reach the resonance point on the axis if the latter generally repels the ray trajectories. As an example, results of general theory are applied to the electron cyclotron resonance heating experiment which is under preparation on the gas dynamic trap in the Budker Institute of Nuclear Physics [Shalashov et al., Phys. Plasmas 19, 052503 (2012)].

Bagulov, D. S. [Novosibirsk State University, Pirogova Street 2, Novosibirsk (Russian Federation); Kotelnikov, I. A. [Novosibirsk State University, Pirogova Street 2, Novosibirsk (Russian Federation); Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences, Akademika Lavrentyeva Prospect 11, 630090 Novosibirsk (Russian Federation)

2012-08-15T23:59:59.000Z

194

Implementation of a Two-Axis Servo-Hydraulic System for Full-Scale Fatigue Testing of Wind Turbine Blades  

DOE Green Energy (OSTI)

Recently, the blade fatigue testing capabilities at NREL were upgraded from single-axis to two-axis loading. To implement this, several practical challenges were addressed, as hardware complexity increased dramatically with two actuators applying the loads at right angles to each other. A custom bellcrank was designed and implemented to minimize the load angle errors and to prevent actuator side loading. The control system was upgraded to accept load and displacement feedback from two actuators. The inherent long strokes uniquely associated with wind turbine blade-tests required substantial real-time corrections for both the control and data systems. A custom data acquisition and control system was developed using a National Instruments LabVIEW platform that interfaces with proprietary servo-hydraulic software developed by MTS Corporation. Before testing, the program is run under quasi-static (slow speed) conditions and iterates to determine the correct operational control parameters for the controller, taking into consideration geometry, test speed, and phase angle errors between the two actuators. Comparisons are made between single-axis and two-axis test loads using actual test load data and load uncertainties are qualitatively described. To date, two fatigue tests have been completed and another is currently ongoing using NREL's two-axis capability.

Hughes, S. D.; Musial, W. D. [National Renewable Energy Lab., Golden, CO (US); Stensland, T. [Stensland Technologies (US)

1999-09-09T23:59:59.000Z

195

First measurement of VuT & Ve events in an off-axis horn-focused neutrino beam  

SciTech Connect

We report the first observation of off-axis neutrino interactions in the MiniBooNE detector from the NuMI beamline at Fermilab. The MiniBooNE detector is located 745 m distance from the NuMI production target, at 110 mrad angle (6.3{sup o}) with respect to the NuMI beam axis. Samples of charged current quasi-elastic {nu}{sub {mu}} and {nu}{sub e} interactions are analyzed and found to be in agreement with expectation. This provides a direct verification of the expected pion and kaon contributions to the neutrino flux and validates modeling of the NuMI off-axis beam.

Louis, William C [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

196

Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind |  

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

Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind December 21, 2011 - 11:26am Addthis These two General Electric wind turbines, erected in January 2011 on the Frey Farm landfill adjacent to Turkey Hill Dairy's ice cream and sweet iced tea plant in Lancaster County, Penn., are expected to produce 7.5 million kWh of electricity annually. | Photo courtesy of Lancaster County Solid Waste Management Authority. These two General Electric wind turbines, erected in January 2011 on the Frey Farm landfill adjacent to Turkey Hill Dairy's ice cream and sweet iced tea plant in Lancaster County, Penn., are expected to produce 7.5 million kWh of electricity annually. | Photo courtesy of Lancaster County Solid

197

The signing of the 19th Meeting Record. Seated are Alexandre Jakovsky, left, of  

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

signing of the 19th Meeting Record. Seated are Alexandre Jakovsky, left, of the Russian Federation signing of the 19th Meeting Record. Seated are Alexandre Jakovsky, left, of the Russian Federation Ministry of Atomic Energy, and John O'Fallon, of the U.S. Department of Energy. Behind them are Fermilab Director John Peoples (far left), U.S. and Russian delegates and Fermilab Directorate staff. Photos by Reidar Hahn by Leila Belkora, Office of Public Affairs When Russian delegates to the Joint Coordinating Committee for Research on the Fundamental Properties of Matter came to Fermilab November 13 and 14 to discuss U.S.- Russian collaboration on high-energy physics research, they had every reason to feel at home. The first high-energy physics experiment ever carried out at Fermilab was a joint Soviet-U.S. collaboration that began taking data "as soon as

198

Role of leptin in regulating the bovine hypothalamic-gonadotropic axis  

E-Print Network (OSTI)

The physiological mechanisms through which nutrition mediates its effects in controlling reproduction are not well characterized. Both neural and endocrine components have been implicated in the communication of nutritional status to the central nervous system. Leptin, a hormone synthesized and secreted mainly by adipocytes, is heavily involved in this communication network. The objectives of studies reported herein were 1) to determine the effects of short-term restriction of nutrients on circulating leptin, leptin gene expression in adipose tissue, and leptin receptor (LR) gene expression in the adenohypophysis of ovariectomized cows; and 2) to investigate the responsiveness of the hypothalamic-adenohypophyseal (AP) axis of fasted and non-fasted cattle to leptin. Studies demonstrated that circulating concentrations of leptin and leptin gene expression in subcutaneous adipose tissue are decreased by fasting. Although 2 to 3 days of fasting did not affect patterns of release of luteinizing hormone (LH), cerebroventricular infusions of leptin increased mean circulating concentrations of LH in fasted, but not normal-fed cows, without affecting frequency or amplitude of pulses of LH. In vitro studies were conducted to determine whether the in vivo effects of leptin could be accounted for at the hypothalamic and/or AP levels. Leptin did not affect the release of gonadotropin-releasing hormone (GnRH) from hypothalamic-infundibular explants from either normal-fed or fasted cattle. Moreover, leptin did not affect the basal release of LH from bovine AP cells or AP explants from normal-fed cows. However, leptin induced a higher basal release of LH from AP explants of fasted cows and increased GnRH-stimulated release of LH from AP explants of normal-fed cows. Results demonstrate that leptin acts directly at the AP level to modulate the secretion of LH, and its effects are dependent upon nutritional status. Cellular mechanisms associated with the increased responsiveness of gonadotropes to leptin in fasted cows were investigated. Expression of LR and suppressor of cytokine signaling-3 (SOCS-3) in the adenohypophysis did not account for the increased responsiveness of fasted cows to leptin. Therefore, although leptin clearly stimulates the hypothalamic-gonadotropic axis in nutrient-restricted cattle, it is unclear why cattle maintained under neutral or positive energy balance are resistant to leptin.

Amstalden, Marcel

2003-12-01T23:59:59.000Z

199

Horizontal-axis wind-system rotor performance model comparison: a compendium  

SciTech Connect

This compendium consists of four reports, the purpose of which is to evaluate performance prediction methods for horizontal-axis wind turbines. The reports were prepared by four separate contractors. Oregon State University, AeroVironment, Inc., Aerospace Systems, Inc., and United Technologies Research Center (UTRC). Three of the four contractors used a blade-element/momentum analysis, while the fourth (UTRC) utilized a lifting line/prescribed wake analysis. These contractors were to apply their prediction methods to two rotors, that of the Enertech 1500 and that of the 1/3-scale UTRC 8 kW turbines. Results from the four prediction methods are compared with actual test data gathered via Controlled Velocity Testing (CVT), carried out by the Rocky Flats Wind Energy Research Center, operated by Rockwell International for the US Department of Energy. The conclusions of the four reports are reviewed in an introduction prepared by Rockwell International. For the Enertech 1500, rotor performance predictions closely agreed with CVT data. Yet, because of the lack of high tip speed ratio data, verification of the Glauert momentum theory was not possible. Predictions regarding the UTRC 1/3 scale 8 kW rotor did not agree well with test results. The reasons cited for the discrepancies center on inadequate airfoil section data and the varying blade pitch angles of the unique UTRC flexbeam rotor.

Not Available

1983-02-01T23:59:59.000Z

200

Dual axis radiographic hydrodynamic test facility. Final environmental impact statement, Volume 2: Public comments and responses  

Science Conference Proceedings (OSTI)

On May 12, 1995, the U.S. Department of Energy (DOE) issued the draft Dual Axis Radiographic Hydrodynamic Test Facility Environmental Impact Statement (DARHT EIS) for review by the State of New Mexico, Indian Tribes, local governments, other Federal agencies, and the general public. DOE invited comments on the accuracy and adequacy of the draft EIS and any other matters pertaining to their environmental reviews. The formal comment period ran for 45 days, to June 26, 1995, although DOE indicated that late comments would be considered to the extent possible. As part of the public comment process, DOE held two public hearings in Los Alamos and Santa Fe, New Mexico, on May 31 and June 1, 1995. In addition, DOE made the draft classified supplement to the DARHT EIS available for review by appropriately cleared individuals with a need to know the classified information. Reviewers of the classified material included the State of New Mexico, the U.S. Environmental Protection Agency, the Department of Defense, and certain Indian Tribes. Volume 2 of the final DARHT EIS contains three chapters. Chapter 1 includes a collective summary of the comments received and DOE`s response. Chapter 2 contains the full text of the public comments on the draft DARHT EIS received by DOE. Chapter 3 contains DOE`s responses to the public comments and an indication as to how the comments were considered in the final EIS.

NONE

1995-08-01T23:59:59.000Z

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201

Drop Shapes and Axis Ratio Distributions: Comparison between 2D Video Disdrometer and Wind-Tunnel Measurements  

Science Conference Proceedings (OSTI)

Comparisons of drop shapes between measurements made using 2D video disdrometer (2DVD) and wind-tunnel experiments are presented. Comparisons are made in terms of the mean drop shapes and the axis ratio distributions. Very close agreement of the ...

M. Thurai; V. N. Bringi; M. Szakll; S. K. Mitra; K. V. Beard; S. Borrmann

2009-07-01T23:59:59.000Z

202

RIGHT AND LEFT MODULES OVER THE FROBENIUS SKEW POLYNOMIAL RING IN THE F-FINITE CASE  

E-Print Network (OSTI)

, over a complete (Noetherian) local ring R of prime characteristic for which the Frobenius homomorphism between the category of left modules over the Frobenius skew polynomial ring R[x, f] that are Artinian as R-modules and the category of right R[x, f]-modules that are Noetherian as R-modules. 0

Yoshino, Yuji

203

Retrieval of Relational Information: A Role for the Left Inferior Prefrontal Cortex  

E-Print Network (OSTI)

Retrieval of Relational Information: A Role for the Left Inferior Prefrontal Cortex Rajendra D- eas of prefrontal cortex and medial temporal lobe structures (MTL) in episodic retrieval tasks and nonrelational retrieval of studied pairs of words. For relational re- trieval, a list of either studied

Schacter, Daniel

204

Improvements in dose calculation accuracy for small off-axis targets in high dose per fraction tomotherapy  

Science Conference Proceedings (OSTI)

Purpose: A recent field safety notice from TomoTherapy detailed the underdosing of small, off-axis targets when receiving high doses per fraction. This is due to angular undersampling in the dose calculation gantry angles. This study evaluates a correction method to reduce the underdosing, to be implemented in the current version (v4.1) of the TomoTherapy treatment planning software. Methods: The correction method, termed 'Super Sampling' involved the tripling of the number of gantry angles from which the dose is calculated during optimization and dose calculation. Radiochromic film was used to measure the dose to small targets at various off-axis distances receiving a minimum of 21 Gy in one fraction. Measurements were also performed for single small targets at the center of the Lucy phantom, using radiochromic film and the dose magnifying glass (DMG). Results: Without super sampling, the peak dose deficit increased from 0% to 18% for a 10 mm target and 0% to 30% for a 5 mm target as off-axis target distances increased from 0 to 16.5 cm. When super sampling was turned on, the dose deficit trend was removed and all peak doses were within 5% of the planned dose. For measurements in the Lucy phantom at 9.7 cm off-axis, the positional and dose magnitude accuracy using super sampling was verified using radiochromic film and the DMG. Conclusions: A correction method implemented in the TomoTherapy treatment planning system which triples the angular sampling of the gantry angles used during optimization and dose calculation removes the underdosing for targets as small as 5 mm diameter, up to 16.5 cm off-axis receiving up to 21 Gy.

Hardcastle, Nicholas; Bayliss, Adam; Wong, Jeannie Hsiu Ding; Rosenfeld, Anatoly B.; Tome, Wolfgang A. [Department of Human Oncology, University of Wisconsin-Madison, WI, 53792 (United States); Department of Physical Sciences, Peter MacCallum Cancer Centre, Melbourne, VIC 3002 (Australia) and Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522 (Australia); Department of Human Oncology, University of Wisconsin-Madison, WI 53792 (United States); Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522 (Australia) and Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur (Malaysia); Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522 (Australia); Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin 53792 (United States); Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53792 (United States); Einstein Institute of Oncophysics, Albert Einstein College of Medicine of Yeshiva University, Bronx, New York 10461 (United States) and Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522 (Australia)

2012-08-15T23:59:59.000Z

205

Study on the relationship between left-turn traffic operations and safety at signalized intersections  

E-Print Network (OSTI)

Intersections are the most complex locations in a traffic system and are likely to have a higher crash count than any other location in the system. Intersection safety is related to traffic operations, such as traffic signal and approaching volume. The objective of this study is to determine the contributing factor for left-turn crashes at signalized intersections by a statistical modeling process and to develop crash prediction models. Potential contributing factors representing the characteristic of a left-turn operation were identified and considered for inclusion in crash prediction models. HCS (Highway Capacity Software) 2000 was utilized for computing some traffic indicators such as volume to capacity ratio for potential inclusion in the models. Three years of crash data were collected in the College Station area. The Signal timing and Volume data were obtained from public works in College Station. The volume data was sorted into three time periods and signal timing data were obtained for three different time periods: AM, noon, and PM. The division of time periods results from timing plans being changed for different periods. Relationship between crash count and each factor was explored to identify whether the factor has the potential to influence the crash count. Afterwards, the prediction models were developed using the negative binomial structure because of many zero samples. Akaike Information Criteria was used for selecting the model having the best fit. Wald tables provided that variables have significance in affecting the left-turn crash count. Left-turn type, sequence, volume, control delay, and post speed limit were identified as significant factors impacting left-turn crash count at a signalized intersection.

Lee, Sunghoon

2007-08-01T23:59:59.000Z

206

Structural effects of unsteady aerodynamic forces on horizontal-axis wind turbines  

DOE Green Energy (OSTI)

Due to its renewable nature and abundant resources, wind energy has the potential to fulfill a large portion of this nation`s energy needs. The simplest means of utilizing wind energy is through the use of downwind, horizontal-axis wind turbines (HAWT) with fixed-pitch rotors. This configuration regulates the peak power by allowing the rotor blade to aerodynamically stall. The stall point, the point of maximum coefficient of lift, is currently predicted using data obtained from wind tunnel tests. Unfortunately, these tests do not accurately simulate conditions encountered in the field. Flow around the tower and nacelle coupled with inflow turbulence and rotation of the turbine blades create unpredicted aerodynamic forces. Dynamic stall is hypothesized to occur. Such aerodynamic loads are transmitted into the rotor and tower causing structural resonance that drastically reduces the design lifetime of the wind turbine. The current method of alleviating this problem is to structurally reinforce the tower and blades. However, this adds unneeded mass and, therefore, cost to the turbines. A better understanding of the aerodynamic forces and the manner in which they affect the structure would allow for the design of more cost effective and durable wind turbines. Data compiled by the National Renewable Energy Laboratory (NREL) for a downwind HAWT with constant chord, untwisted, fixed-pitch rotors is analyzed. From these data, the actual aerodynamic characteristics of the rotor are being portrayed and the potential effects upon the structure can for the first time be fully analyzed. Based upon their understanding, solutions to the problem of structural resonance are emerging.

Miller, M.S.; Shipley, D.E. [Univ. of Colorado, Boulder, CO (United States). BioServe Space Technologies

1994-08-01T23:59:59.000Z

207

Structural Design of a Horizontal-Axis Tidal Current Turbine Composite Blade  

DOE Green Energy (OSTI)

This paper describes the structural design of a tidal composite blade. The structural design is preceded by two steps: hydrodynamic design and determination of extreme loads. The hydrodynamic design provides the chord and twist distributions along the blade length that result in optimal performance of the tidal turbine over its lifetime. The extreme loads, i.e. the extreme flap and edgewise loads that the blade would likely encounter over its lifetime, are associated with extreme tidal flow conditions and are obtained using a computational fluid dynamics (CFD) software. Given the blade external shape and the extreme loads, we use a laminate-theory-based structural design to determine the optimal layout of composite laminas such that the ultimate-strength and buckling-resistance criteria are satisfied at all points in the blade. The structural design approach allows for arbitrary specification of the chord, twist, and airfoil geometry along the blade and an arbitrary number of shear webs. In addition, certain fabrication criteria are imposed, for example, each composite laminate must be an integral multiple of its constituent ply thickness. In the present effort, the structural design uses only static extreme loads; dynamic-loads-based fatigue design will be addressed in the future. Following the blade design, we compute the distributed structural properties, i.e. flap stiffness, edgewise stiffness, torsion stiffness, mass, moments of inertia, elastic-axis offset, and center-of-mass offset along the blade. Such properties are required by hydro-elastic codes to model the tidal current turbine and to perform modal, stability, loads, and response analyses.

Bir, G. S.; Lawson, M. J.; Li, Y.

2011-10-01T23:59:59.000Z

208

Evaluation of a Bovine Temperament Model for Endophenotypes Associated with Hypothalamic-Pituitary-Adrenal Axis Dysfunction  

E-Print Network (OSTI)

Dynamic interactions of behavior-related traits and the physiological stress response bear upon the beef industry by impacting animal welfare, health, and productivity. The specific mechanisms of hypothalamic-pituitary-adrenal (HPA) axis dysfunction as related to cattle temperament remain unclear. To further characterize endophenotypes associated with the complex interaction of environment and genotype, the following experiments focused on stimulation and regulation of the pituitary gland in cattle of differing genetic background and temperament. Using serial blood sampling, via jugular cannula, the pituitary and subsequent adrenal response to exogenous vasopressin (VP) was characterized for steers of an excitable or calm temperament. Exit velocity (EV) measured at weaning was used to determine steer temperament. Endocrine parameters were measured for 6 h before and 6 h after the VP administration to quantify the stress response to both the handling associated with the experimental procedures and pharmacological challenge. Elevated concentrations of cortisol in excitable steers during the pre-challenge period reflected an increased initial adrenal reactivity to interactions with humans. Subsequent acclimation to the experimental surroundings yielded greater baseline cortisol concentrations in the cattle with an excitable temperament. Pituitary stimulation with VP resulted in a greater adrenocorticotropic hormone (ACTH) output from the excitable compared to the calm animals. A separate experiment employed the same 12-h blood sampling protocol with a different pituitary secretagogue, corticotrophin-releasing hormone (CRH), in order to evaluate pituitary-adrenal responsiveness in cattle with differing temperaments and genetic backgrounds. Measures of EV at weaning identified the calmest and most excitable steers from two separate calf crops; one Angus and the other Brahman. Within breed, adrenal medullary response to initial handling was influenced by temperament as concentrations of epinephrine and norepinephrine were higher in the excitable steers of both breedtypes. Additionally, concentrations of cortisol also differed by temperament in the Angus steers at this time point. An effect of temperament on pituitary responsiveness to exogenous CRH was observed in the Angus but not the Brahman steers. Unlike what was observed with the previously described VP challenge, the pituitary responsiveness to CRH was blunted in the excitable steers. The specific endophenotypes which have been identified or reinforced through these experiments suggest that there are aspects of HPA dysfunction associated with bovine temperament.

Curley, Kevin

2012-05-01T23:59:59.000Z

209

THE INITIAL MASS FUNCTION MODELED BY A LEFT TRUNCATED BETA DISTRIBUTION  

Science Conference Proceedings (OSTI)

The initial mass function for stars is usually fitted by three straight lines, which means it has seven parameters. The presence of brown dwarfs (BDs) increases the number of straight lines to four and the number of parameters to nine. Another common fitting function is the lognormal distribution, which is characterized by two parameters. This paper is devoted to demonstrating the advantage of introducing a left truncated beta probability density function, which is characterized by four parameters. The constant of normalization, the mean, the mode, and the distribution function are calculated for the left truncated beta distribution. The normal beta distribution that results from convolving independent normally distributed and beta distributed components is also derived. The chi-square test and the Kolmogorov-Smirnov test are performed on a first sample of stars and BDs that belongs to the massive young cluster NGC 6611, and on a second sample that represents the masses of the stars of the cluster NGC 2362.

Zaninetti, Lorenzo, E-mail: zaninetti@ph.unito.it [Dipartimento di Fisica, Via Pietro Giuria 1, I-10125 Torino (Italy)

2013-03-10T23:59:59.000Z

210

Lepton Number Violating Signals of the Top Partners in the Left-Right Twin Higgs Model  

E-Print Network (OSTI)

We study the collider signatures of the left-right twin Higgs model in the case that the right-handed neutrino mass is less than the mass of the right-handed gauge boson. In this scenario, new leptonic decay chains open up, allowing the particles which cancel the one-loop quadratic divergences of the Higgs, the right-handed gauge bosons and top-partners, to be discovered. Half of these events contain same-sign leptons without missing energy, which have no genuine standard model background and for which the backgrounds are purely instrumental. These signals may be used to complement other collider searches, and in certain regions of parameter space, may be the only way to observe the particles responsible for natural electroweak symmetry breaking in the left-right twin Higgs model.

Hock-Seng Goh; Christopher A. Krenke

2009-11-30T23:59:59.000Z

211

A left-right symmetric model with SU(2)-triplet fermions  

E-Print Network (OSTI)

We consider an $SU(3)_c \\otimes SU(2)_L \\otimes SU(2)_R \\otimes U(1)_{B-L}$ left-right symmetric model with three Higgs scalars including an $SU(2)_L$ doublet, an $SU(2)_R$ doublet and an $SU(2)_L \\otimes SU(2)_R$ bidoublet. In addition to usual SU(2)-doublet fermions, our model contains SU(2)-triplet fermions with Majorana masses. The neutral components of the left-handed triplets can contribute a canonical seesaw while the neutral components of the right-handed triplets associated with the right-handed neutrinos can contribute a double/inverse-type seesaw. Our model can be embedded into an SO(10) grand unification theory where the triplets belong to the $45=(1,3,1,0) \\oplus (1,1,3,0)\\oplus ...$ representations.

Pei-Hong Gu

2011-10-27T23:59:59.000Z

212

Refine your search Select options from the menu on the left hand  

E-Print Network (OSTI)

://psu.summon.serialssolutions.comhttp://psu.summon.serialssolutions.com F I N A L LY : RESEARCH AS EASYAS 1-2-3 #12;1 Enter search term into search box. 2 Refine results relevant articles were published in that year. Include or Exclude subject terms from your searchRefine your search Select options from the menu on the left hand side of the results screen

Yener, Aylin

213

Obtaining oblique technique source-to-skin distances for irregular field (Clarkson) calculations: The Mayo Off-axis Distance Indicator  

Science Conference Proceedings (OSTI)

Significant dose inhomogeneities may exist between the supraclavicular fossa (SCF) and the internal mammary chain (IMC) regions in the irregular L-shaped (hockey stick) field associated with breast cancer treatments. This dose inhomogeneity exists, in part, because of a positive air gap in the SCF and a negative air gap in the IMC locations. Independent of treatment technique, (i.e., whether anterior-posterior (AP) or oblique fields are used), accurate source-to-skin distance (SSD) values for the SCF, IMC, and axilla are necessary when doing an irregular field (Clarkson) dose calculation. However, when an oblique technique is used to treat the hockey stick field, obtaining non-central-axis SSDs is not as straightforward as when an AP technique is employed. The Mayo Off-axis Distance Indicator was constructed to slide into the blocking tray slot of the simulator or treatment machine. This mechanical measuring device provides quick and accurate SSD measurements for non-central-axis points under either AP or, more importantly, oblique treatment conditions.

Lajoie, W.N. (Mayo Medical Center, Rochester, MN (USA))

1988-09-01T23:59:59.000Z

214

Solving the neutrino parameter degeneracy by measuring the T2K off-axis beam in Korea  

E-Print Network (OSTI)

The T2K neutrino oscillation experiment will start in 2009. In this experiment the center of the neutrino beam from J-PARC at Tokai village will go through underground beneath Super-Kamiokande, reach the sea level east of Korean shore, and an off-axis beam at $0.5^{\\circ}$ to $1.0^{\\circ}$ can be observed in Korea. We study physics impacts of putting a 100 kt-level Water \\cerenkov detector in Korea during the T2K experimental period. For a combination of the $3^{\\circ}$ off-axis beam at SK with baseline length L = 295 km and the $0.5^{\\circ}$ off-axis beam in the east coast of Korea at L = 1000 km, we find that the neutrino mass hierarchy (the sign of $m^2_{3} - m^2_1$) can be resolved and the CP phase of the MNS unitary matrix can be constrained uniquely at 3-$\\sigma$ level when \\sin^2 2\\theta_{\\rm rct} $ \\ge 0.06 $.

Kaoru Hagiwara; Naotoshi Okamura; Ken-ichi Senda

2005-04-08T23:59:59.000Z

215

Resolve the Neutrino Parameter Degeneracies with the T2K Off-axis Beam and the Large Detector in Korea  

E-Print Network (OSTI)

In this talk, we show the physics impacts of putting a large Water Cerenkov detector in Korea during the T2K experimental period. The T2K experiment which will start in 2009 plans to use the high intensity conventional neutrino beam from J-PARC at Tokai village, Japan. The center of this beam will reach the sea level between Japan and Korea, and an off-axis beam at 0.5^o to 1.0^o can be observed in Korea. For a combination of the 3^o off-axis beam at SK with baseline length L=295km and the 0.5^o off-axis beam in the east coast of Korea, near Gyeongju, at L=1000km, we find that the neutrino mass hierarchy (the sign of the larger mass-squared difference) can be resolved and the CP phase of the MNS unitary matrix can be constrained uniquely at 3-sigma level when sin^2(2theta_rct) simgt 0.06.

Naotoshi Okamura

2005-09-16T23:59:59.000Z

216

Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Credit! |  

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

Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Credit! Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Credit! December 28, 2009 - 7:30am Addthis Allison Casey Senior Communicator, NREL Black Friday sales have never been enough to entice me to brave the crowds after Thanksgiving. I'm just not that dedicated to shopping. After-Christmas sales, however, are another story. Sometimes those sales are just too good to pass up. If you're planning to take advantage of some of those great sales, you may want to see if there are any deals out there for energy-efficient purchases-but time is running out if you want to get a tax credit when you file your 2009 taxes in April. You have just four days to make your purchase for this year's tax credit. See the products that are eligible for

217

A Dosimetric Analysis of IMRT and Multistatic Fields Techniques for Left Breast Radiotherapy  

Science Conference Proceedings (OSTI)

The purpose of this study was to analyze the dosimetric difference between intensity-modulated radiation therapy (IMRT) using 3 or 5 beams and multistatic field technique (MSF) in radiotherapy of the left breast. We made comparative analysis of two kinds of radiotherapy that can achieve improved dose homogeneity. First is a MSF that uses both major and small irradiation fields at the same time. The other is IMRT using 3 or 5 beams with an inverse planning system using multiple static multileaf collimators. We made treatment plans for 16 early left breast cancer patients who were randomly selected and had undergone breast conserving surgery and radiotherapy, and analyzed them in the dosimetric aspect. For the mean values of V{sub 95} and dose homogeneity index, no statistically significant difference was observed among the three therapies. Extreme hot spots receiving >110% of prescribed dose were not found in any of the three methods. Using Tukey's test, IMRT showed a significantly larger increase in exposure dose to the ipsilateral lung and the heart than MSF in the low-dose area, but in the high-dose area, MSF showed a slight increase. To improve dose homogeneity, the application of MSF, which can be easily planned and applied more widely, is considered optimal as an alternative to IMRT for radiotherapy of early left breast cancer.

Moon, Seong Kwon [Department of Radiation Oncology, Soonchunhyang University Hospital, Bucheon-Si, Gyeonggi-do (Korea, Republic of); Kim, Yeon Sil [Department of Radiation Oncology, Catholic University of Korea, Seoul St. Mary's Hospital, Seoul (Korea, Republic of); Kim, Soo Young [Department of Preventive Medicine, Eulji University Hospital, Daejeon (Korea, Republic of); Lee, Mi Jo; Keum, Hyun Sup; Kim, Seung Jin; Youn, Seon Min [Department of Radiation Oncology, Eulji University Hospital, Daejeon (Korea, Republic of)

2011-10-01T23:59:59.000Z

218

Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Credit! |  

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

Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Credit! Four Days Left to Buy Energy-Efficient Products for a 2009 Tax Credit! December 28, 2009 - 7:30am Addthis Allison Casey Senior Communicator, NREL Black Friday sales have never been enough to entice me to brave the crowds after Thanksgiving. I'm just not that dedicated to shopping. After-Christmas sales, however, are another story. Sometimes those sales are just too good to pass up. If you're planning to take advantage of some of those great sales, you may want to see if there are any deals out there for energy-efficient purchases-but time is running out if you want to get a tax credit when you file your 2009 taxes in April. You have just four days to make your purchase for this year's tax credit. See the products that are eligible for

219

Ghrelin Suppression and Fat Loss after Left Gastric Artery Embolization in Canine Model  

Science Conference Proceedings (OSTI)

Purpose: To evaluate the effects of left gastric artery embolization (LGAE) on plasma ghrelin levels, abdominal fat, and body weight in beagles. Methods: The institutional animal care and use committee approved this study. Fifteen healthy adult beagles (12 male and three female animals) were randomly divided into three experimental groups: LGAE was proceeded with mixed emulsion of bleomycin A{sub 5} hydrochloride and lipiodol (group A), and polyvinyl alcohol particles (group B). Transcatheter saline injections in the left gastric artery were performed as a control. Weight and fasting plasma ghrelin levels were obtained at baseline and at weekly intervals for 8 weeks after the procedure in all animals. All animals were scanned and measured by multidetector computed tomography at baseline and at week 8 for evaluation of abdominal fat. Results: In LGAE-treated animals, plasma ghrelin and body weight significantly decreased compared to control animals (group A: P = 0.007 and P = 0.000; group B: P = 0.004 and P = 0.000, respectively). Subcutaneous fat size was also significantly reduced (P = 0.011 and P = 0.027 for groups A and B, respectively). The decreasing percentage in ghrelin levels at week 6 (peak of recovery) of LGAE-treated animals were negatively correlated with the size of area supplied by left gastric artery (r = -0.693, P = 0.026). Conclusion: LGAE could suppress the plasma concentration of ghrelin, which results in subcutaneous fat size reduction and weight loss. Compensatory ghrelin production might occur in the remnant gastric fundus after LGAE.

Bawudun, Dilmurat [Xinjiang Medical University, Department of Interventional Radiology, First Affiliated Hospital (China); Xing Yan; Liu Wenya, E-mail: wenyaliu2002@hotmail.com; Huang Yujie [Xinjiang Medical University, Imaging Center, First Affiliated Hospital (China); Ren Weixin [Xinjiang Medical University, Department of Interventional Radiology, First Affiliated Hospital (China); Ma Mei [Xinjiang Medical University, Animal Research Center, First Affiliated Hospital (China); Xu Xiaodong [Xinjiang Medical University, Department of Interventional Radiology, First Affiliated Hospital (China); Teng Gaojun [Southeast University, Department of Radiology, Zhong-da Hospital (China)

2012-12-15T23:59:59.000Z

220

Neutrinos and Lepton Flavour Violation in the Left-Right Twin Higgs Model  

E-Print Network (OSTI)

We analyse the lepton sector of the Left-Right Twin Higgs Model. This model offers an alternative way to solve the "little hierarchy" problem of the Standard Model. We show that one can achieve an effective see-saw to explain the origin of neutrino masses and that this model can accommodate the observed neutrino masses and mixings. We have also studied the lepton flavour violation process l_1 -> l_2 \\gamma and discussed how the experimental bound from these branching ratios constrains the scale of symmetry breaking of this Twin Higgs model.

Asmaa Abada; Irene Hidalgo

2007-11-08T23:59:59.000Z

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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Use of off-axis injection as an alternative to geometrically merging beams in an energy-recovering linac  

DOE Patents (OSTI)

A method of using off-axis particle beam injection in energy-recovering linear accelerators that increases operational efficiency while eliminating the need to merge the high energy re-circulating beam with an injected low energy beam. In this arrangement, the high energy re-circulating beam and the low energy beam are manipulated such that they are within a predetermined distance from one another and then the two immerged beams are injected into the linac and propagated through the system. The configuration permits injection without geometric beam merging as well as decelerated beam extraction without the use of typical beamline elements.

Douglas, David R. (York County, VA)

2012-01-10T23:59:59.000Z

222

Left ventricular performance in type-II diabetics with first acute myocardial infarction: A radionuclide assessment  

Science Conference Proceedings (OSTI)

To assess myocardial performance in diabetics following acute myocardial infarction (AMI), resting gated radionuclide studies with Tc-99m were performed within two weeks of the onset of symptoms in matched groups of 18 type-II diabetics with their first clinical AMI (D-AMI), 20 nondiabetics with their first AMI (ND-AMI), and 20 nondiabetic noncardiac controls. Eighty-three percent of D-AMI and 50% of ND-AMI had left ventricular ejection fractions below 2 SD of normal. Diabetics had a significantly lower resting LVEF than nondiabetics (p<0.05). All patients with LVEF < 35% were diabetics. LV mean ejection and filling rates were similar in diabetics and nondiabetics. While 72% of diabetics showed abnormal wall motion in 5 or more segments (out of 9), only 45% of the nondiabetics were this extensively affected. Seventy-two percent of the diabetics showed one or more of akinesis and 39% had one or more areas of dyskinesis, compared to 30% and 5% of the nondiabetics respectively. The authors conclude that the extent, as well as the severity of the left ventricular impairment is more evident in the diabetics than in the nondiabetics, following the first acute MI.

Amin, E.M.; Karimeddini, M.K.; El-Haieg, M.O.; Dey, H.M.; Antar, M.A.

1985-05-01T23:59:59.000Z

223

Exploration of decaying dark matter in a left-right symmetric model  

E-Print Network (OSTI)

$SU(2)_L$ triplet scalars appear in models motivated for the left-right symmetry, neutrino masses and dark matter (DM), etc.. If the triplets are the main decay products of the DM particle, and carry nonzero lepton numbers, they may decay dominantly into lepton pairs, which can naturally explain the current experimental results reported by PAMELA and Fermi-LAT or ATIC. We discuss this possibility in an extended left-right symmetric model in which the decay of DM particle is induced by tiny soft charge-conjugation ($C$) violating interactions, and calculate the spectra for cosmic-ray positrons, neutrinos and gamma-rays. We show that the DM signals in the flux of high energy neutrinos can be significantly enhanced, as the triplets couple to both charged leptons and neutrinos with the same strength. In this scenario, the predicted neutrino-induced muon flux can be several times larger than the case in which DM particle only directly decays into charged leptons. In addition, the charged components of the triplet may give an extra contribution to the high energy gamma-rays through internal bremsstrahlung process, which depends on the mass hierarchy between the DM particle and the triplet scalars.

Wan-Lei Guo; Yue-Liang Wu; Yu-Feng Zhou

2010-01-03T23:59:59.000Z

224

Deducing the Orientation of the Semimajor Axis of the Eta Carinae Binary System from X-ray Observations  

E-Print Network (OSTI)

We study the usage of the X-ray light curve, column density toward the hard X-ray source, and emission measure (density square times volume), of the massive binary system Eta Carinae to determine the orientation of its semi-major axis. The source of the hard X-ray emission is the shocked secondary wind. We argue that, by itself, the observed X-ray flux cannot teach us much about the orientation of the semi-major axis. Minor adjustment of some unknown parameters of the binary system allows to fit theX-ray light curve with almost any inclination angle and orientation. The column density and X-ray emission measure, on the other hand, impose strong constrains on the orientation. We improve our previous calculations and show that the column density is more compatible with an orientation where for most of the time the secondary - the hotter, less massive star - is behind the primary star. The secondary comes closer to the observer only for a short time near periastron passage. The ten-week X-ray deep minimum, which...

Soker, Amit Kashi Noam

2009-01-01T23:59:59.000Z

225

Order-of-magnitude enhancement of wind farm power density via counter-rotating vertical-axis wind turbine arrays  

E-Print Network (OSTI)

Modern wind farms require significant land resources to separate each wind turbine from the adjacent turbine wakes. These aerodynamic constraints limit the amount of power that can be extracted from a given wind farm footprint. We conducted full-scale field tests of vertical-axis wind turbines in counter-rotating configurations under natural wind conditions. Whereas wind farms consisting of propeller-style turbines produce 2 to 3 watts of power per square meter of land area, these field tests indicate that power densities approaching 100 W m^-2 can be achieved by arranging vertical-axis wind turbines in layouts that enable them to extract energy from adjacent wakes. In addition, we calculated that the global wind resource available to 10-m tall turbines based on the present approach is approximately 225 trillion watts (TW), which significantly exceeds the global wind resource available to 80-m tall, propeller-style wind turbines, approximately 75 TW. This improvement is due to the closer spacing that can be a...

Dabiri, John O

2010-01-01T23:59:59.000Z

226

DETECTION OF SEMIMAJOR AXIS DRIFTS IN 54 NEAR-EARTH ASTEROIDS: NEW MEASUREMENTS OF THE YARKOVSKY EFFECT  

Science Conference Proceedings (OSTI)

We have identified and quantified semimajor axis drifts in near-Earth asteroids (NEAs) by performing orbital fits to optical and radar astrometry of all numbered NEAs. We focus on a subset of 54 NEAs that exhibit some of the most reliable and strongest drift rates. Our selection criteria include a Yarkovsky sensitivity metric that quantifies the detectability of semimajor axis drift in any given data set, a signal-to-noise metric, and orbital coverage requirements. In 42 cases, the observed drifts ({approx}10{sup -3} AU Myr{sup -1}) agree well with numerical estimates of Yarkovsky drifts. This agreement suggests that the Yarkovsky effect is the dominant non-gravitational process affecting these orbits, and allows us to derive constraints on asteroid physical properties. In 12 cases, the drifts exceed nominal Yarkovsky predictions, which could be due to inaccuracies in our knowledge of physical properties, faulty astrometry, or modeling errors. If these high rates cannot be ruled out by further observations or improvements in modeling, they would be indicative of the presence of an additional non-gravitational force, such as that resulting from a loss of mass of order a kilogram per second. We define the Yarkovsky efficiency f{sub Y} as the ratio of the change in orbital energy to incident solar radiation energy, and we find that typical Yarkovsky efficiencies are {approx}10{sup -5}.

Nugent, C. R.; Margot, J. L. [Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095 (United States); Chesley, S. R. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Vokrouhlicky, D. [Institute of Astronomy, Charles University, V Holesovickach 2, CZ-18000 Prague 8 (Czech Republic)

2012-08-15T23:59:59.000Z

227

Respiration Induced Heart Motion and Indications of Gated Delivery for Left-Sided Breast Irradiation  

SciTech Connect

Purpose: To investigate respiration-induced heart motion for left-sided breast irradiation using a four-dimensional computed tomography (4DCT) technique and to determine novel indications to assess heart motion and identify breast patients who may benefit from a gated treatment. Methods and Materials: Images of 4DCT acquired during free breathing for 20 left-sided breast cancer patients, who underwent whole breast irradiation with or without regional nodal irradiation, were analyzed retrospectively. Dose distributions were reconstructed in the phases of 0%, 20%, and 50%. The intrafractional heart displacement was measured in three selected transverse CT slices using D{sub LAD} (the distance from left ascending aorta to a fixed line [connecting middle point of sternum and the body] drawn on each slice) and maximum heart depth (MHD, the distance of the forefront of the heart to the line). Linear regression analysis was used to correlate these indices with mean heart dose and heart dose volume at different breathing phases. Results: Respiration-induced heart displacement resulted in observable variations in dose delivered to the heart. During a normal free-breathing cycle, heart-induced motion D{sub LAD} and MHD changed up to 9 and 11 mm respectively, resulting in up to 38% and 39% increases of mean doses and V{sub 25.2} for the heart. MHD and D{sub LAD} were positively correlated with mean heart dose and heart dose volume. Respiratory-adapted gated treatment may better spare heart and ipsilateral-lung compared with the conventional non-gated plan in a subset of patients with large D{sub LAD} or MHD variations. Conclusion: Proposed indices offer novel assessment of heart displacement based on 4DCT images. MHD and D{sub LAD} can be used independently or jointly as selection criteria for respiratory gating procedure before treatment planning. Patients with great intrafractional MHD variations or tumor(s) close to the diaphragm may particularly benefit from the gated treatment.

Qi, X. Sharon, E-mail: xiangrong.qi@ucdenver.edu [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Hu, Angela [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Wang Kai [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States); Newman, Francis [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Crosby, Marcus; Hu Bin; White, Julia; Li, X. Allen [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States)

2012-04-01T23:59:59.000Z

228

Probing Heavy-Light Neutrino Mixing in Left-Right Seesaw Models at the LHC  

E-Print Network (OSTI)

We show that in TeV-scale left-right (L-R) symmetric seesaw models, there are new dominant contributions to the collider signals of heavy Majorana neutrinos arising from the heavy-light neutrino mixing, which directly probe the seesaw matrix in a certain class of models. We propose a way to distinguish this contribution from the widely discussed one that only probes the Majorana nature of the heavy right-handed neutrinos, by analyzing some simple kinematical variables. We find that in this class of L-R seesaw models the existing LHC data already yield slightly stronger constraints on the heavy-light neutrino mixing than those derived for standard seesaw models, and the improvement will be significant as more data are collected.

Chien-Yi Chen; P. S. Bhupal Dev; R. N. Mohapatra

2013-06-10T23:59:59.000Z

229

Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine  

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

Development and Verification of Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine M.J. Lawson and Y. Li. National Renewable Energy Laboratory D.C. Sale University of Washington Presented at the 30 th International Conference on Ocean, Offshore, and Arctic Engineering Rotterdam, The Netherlands June 19-24, 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Conference Paper NREL/CP-5000-50981 October 2011 Contract No. DE-AC36-08GO28308 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US

230

Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine  

DOE Green Energy (OSTI)

This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

Lawson, M. J.; Li, Y.; Sale, D. C.

2011-10-01T23:59:59.000Z

231

New Technique for the Preservation of the Left Common Carotid Artery in Zone 2a Endovascular Repair of Thoracic Aortic Aneurysm  

Science Conference Proceedings (OSTI)

To describe a technique for the preservation of the left common carotid artery (CCA) in zone 2 endovascular repair of thoracic aortic aneurysm. This technique involves the placement of a guide wire into the left CCA via the right brachial artery before stent graft deployment to enable precise visualization and protection of the left CCA during the whole procedure. Of the 107 patients with thoracic endovascular aortic repair in our study, 32 (30%) had the left subclavian artery intentionally covered (landing zone 2). Eight (25%) of those 32 had landing zone 2a-the segment distally the origin of the left CCA, halfway between the origin of the left CCA and the left subclavian artery. In all patients, a guide wire was positioned into the left CCA via the right brachial artery before stent graft deployment. It is a retrospective study in design. In seven patients, stent grafts were positioned precisely. In the remaining patient, the positioning was imprecise; the origin of the left CCA was partially covered by the graft. A stent was implanted into the left CCA to restore the flow into the vessel. All procedures were performed successfully. The technique of placing a guide wire into the left CCA via the right brachial artery before stent graft deployment is a safe and effective method that enables the precise visualization of the left CCA during the whole procedure. Moreover, in case of inadvertent complete or partial coverage of the origin of the left CCA, it supplies safe and quick access to the artery for stent implantation.

Juszkat, Robert, E-mail: radiologiamim@wp.pl; Kulesza, Jerzy; Zarzecka, Anna [Poznan University of Medical Sciences, Department of Radiology (Poland); Jemielity, Marek [Poznan University of Medical Sciences, Department of Cardiac Surgery (Poland); Staniszewski, Ryszard; Majewski, Waclaw [Poznan University of Medical Sciences, Department of General and Vascular Surgery (Poland)

2011-02-15T23:59:59.000Z

232

Right/left assignment in drift chambers and proportional multiwire chambers (PWC's) using induced signals  

DOE Patents (OSTI)

Improved multiwire chamber having means for resolving the left/right ambiguity in the location of an ionizing event. The chamber includes a plurality of spaced parallel anode wires positioned between spaced planar cathodes. Associated with each of the anode wires are a pair of localizing wires, one positioned on either side of the anode wire. The localizing wires are connected to a differential amplifier whose output polarity is determined by whether the ionizing event occurs to the right or left of the anode wire.

Walenta, Albert H. (Upton, NY)

1979-01-01T23:59:59.000Z

233

Image-Guided Radiotherapy for Left-Sided Breast Cancer Patients: Geometrical Uncertainty of the Heart  

SciTech Connect

Purpose: To quantify the geometrical uncertainties for the heart during radiotherapy treatment of left-sided breast cancer patients and to determine and validate planning organ at risk volume (PRV) margins. Methods and Materials: Twenty-two patients treated in supine position in 28 fractions with regularly acquired cone-beam computed tomography (CBCT) scans for offline setup correction were included. Retrospectively, the CBCT scans were reconstructed into 10-phase respiration correlated four-dimensional scans. The heart was registered in each breathing phase to the planning CT scan to establish the respiratory heart motion during the CBCT scan ({sigma}{sub resp}). The average of the respiratory motion was calculated as the heart displacement error for a fraction. Subsequently, the systematic ({Sigma}), random ({sigma}), and total random ({sigma}{sub tot}={radical}({sigma}{sup 2}+{sigma}{sub resp}{sup 2})) errors of the heart position were calculated. Based on the errors a PRV margin for the heart was calculated to ensure that the maximum heart dose (D{sub max}) is not underestimated in at least 90% of the cases (M{sub heart} = 1.3{Sigma}-0.5{sigma}{sub tot}). All analysis were performed in left-right (LR), craniocaudal (CC), and anteroposterior (AP) directions with respect to both online and offline bony anatomy setup corrections. The PRV margin was validated by accumulating the dose to the heart based on the heart registrations and comparing the planned PRV D{sub max} to the accumulated heart D{sub max}. Results: For online setup correction, the cardiac geometrical uncertainties and PRV margins were N-Ary-Summation = 2.2/3.2/2.1 mm, {sigma} = 2.1/2.9/1.4 mm, and M{sub heart} = 1.6/2.3/1.3 mm for LR/CC/AP, respectively. For offline setup correction these were N-Ary-Summation = 2.4/3.7/2.2 mm, {sigma} = 2.9/4.1/2.7 mm, and M{sub heart} = 1.6/2.1/1.4 mm. Cardiac motion induced by breathing was {sigma}{sub resp} = 1.4/2.9/1.4 mm for LR/CC/AP. The PRV D{sub max} underestimated the accumulated heart D{sub max} for 9.1% patients using online and 13.6% patients using offline bony anatomy setup correction, which validated that PRV margin size was adequate. Conclusion: Considerable cardiac position variability relative to the bony anatomy was observed in breast cancer patients. A PRV margin can be used during treatment planning to take these uncertainties into account.

Topolnjak, Rajko; Borst, Gerben R.; Nijkamp, Jasper [Radiotherapy Department, Netherlands Cancer Institute/Antoni van Leeuwenhoek Huis, Amsterdam (Netherlands); Sonke, Jan-Jakob, E-mail: j.sonke@nki.nl [Radiotherapy Department, Netherlands Cancer Institute/Antoni van Leeuwenhoek Huis, Amsterdam (Netherlands)

2012-03-15T23:59:59.000Z

234

Higgs bosons in a minimal R-parity conserving left-right supersymmetric model  

Science Conference Proceedings (OSTI)

We revisit the Higgs sector of the left-right supersymmetric model. We study the scalar potential in a version of the model in which the minimum is the charge-conserving vacuum state, without R-parity violation or additional nonrenormalizable terms in the Lagrangian. We analyze the dependence of the potential and of the Higgs mass spectrum on the various parameters of the model, pinpointing the most sensitive ones. We also show that the model can predict light neutral flavor-conserving Higgs bosons, while the flavor-violating ones are heavy and within the limits from K{sup 0}-K{sup 0}, D{sup 0}-D{sup 0}, and B{sub d,s}{sup 0}-B{sub d,s}{sup 0} mixings. We study variants of the model in which at least one doubly charged Higgs boson is light and show that the parameter space for such Higgs masses and mixings is very restrictive, thus making the model more predictive.

Frank, Mariana; Korutlu, Beste [Department of Physics, Concordia University, 7141 Sherbrooke Street West, Montreal, H4B 1R6 Quebec (Canada)

2011-04-01T23:59:59.000Z

235

PHOTO BY PAUL EFIRD From left, Jay Maurer, director of photography, Kevin O'Connor, host of DIY's "This  

E-Print Network (OSTI)

PHOTO BY PAUL EFIRD From left, Jay Maurer, director of photography, Kevin O'Connor, host of DIY segments in Knoxville Latest DIY show is fresh spin on `This Old House' By Larisa Brass Tuesday, April 6 by the DIY Network this July. "This New House," produced by former executive producer of PBS's "This Old

236

Professional Learning Communities in improved Illinois elementary schools| The value of Professional Learning Communities for leaders of Illinois elementary schools formerly in "No Child Left Behind" status.  

E-Print Network (OSTI)

?? The "No Child Left Behind" (NCLB) reauthorization of the Elementary and Secondary Education Act of 1965 has created a system, which potentially labeled 82% (more)

Thomas, Steven James

2013-01-01T23:59:59.000Z

237

Integral-Field Spectroscopy of the Post Red Supergiant IRC +10420: evidence for an axi-symmetric wind  

E-Print Network (OSTI)

We present NAOMI/OASIS adaptive-optics assisted integral-field spectroscopy of the transitional massive hypergiant IRC +10420, an extreme mass-losing star apparently in the process of evolving from a Red Supergiant toward the Wolf-Rayet phase. To investigate the present-day mass-loss geometry of the star, we study the appearance of the line-emission from the inner wind as viewed when reflected off the surrounding nebula. We find that, contrary to previous work, there is strong evidence for wind axi-symmetry, based on the equivalent-width and velocity variations of H$\\alpha$ and Fe {\\sc ii} $\\lambda$6516. We attribute this behaviour to the appearance of the complex line-profiles when viewed from different angles. We also speculate that the Ti {\\sc ii} emission originates in the outer nebula in a region analogous to the Strontium Filament of $\\eta$ Carinae, based on the morphology of the line-emission. Finally, we suggest that the present-day axisymmetric wind of IRC +10420, combined with its continued blueward evolution, is evidence that the star is evolving toward the B[e] supergiant phase.

Ben Davies; Ren D. Oudmaijer; Kailash C. Sahu

2007-08-16T23:59:59.000Z

238

Integral-Field Spectroscopy of the Post Red Supergiant IRC +10420: evidence for an axi-symmetric wind  

E-Print Network (OSTI)

We present NAOMI/OASIS adaptive-optics assisted integral-field spectroscopy of the transitional massive hypergiant IRC +10420, an extreme mass-losing star apparently in the process of evolving from a Red Supergiant toward the Wolf-Rayet phase. To investigate the present-day mass-loss geometry of the star, we study the appearance of the line-emission from the inner wind as viewed when reflected off the surrounding nebula. We find that, contrary to previous work, there is strong evidence for wind axi-symmetry, based on the equivalent-width and velocity variations of H$\\alpha$ and Fe {\\sc ii} $\\lambda$6516. We attribute this behaviour to the appearance of the complex line-profiles when viewed from different angles. We also speculate that the Ti {\\sc ii} emission originates in the outer nebula in a region analogous to the Strontium Filament of $\\eta$ Carinae, based on the morphology of the line-emission. Finally, we suggest that the present-day axisymmetric wind of IRC +10420, combined with its continued blueward...

Davies, Ben; Sahu, Kailash C

2007-01-01T23:59:59.000Z

239

Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine  

SciTech Connect

This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines (HATTs). First, an HATT blade was designed using the blade element momentum method in conjunction with a genetic optimization algorithm. Several unstructured computational grids were generated using this blade geometry and steady CFD simulations were used to perform a grid resolution study. Transient simulations were then performed to determine the effect of time-dependent flow phenomena and the size of the computational timestep on the numerical solution. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

Lawson, Mi. J.; Li, Y.; Sale, D. C.

2011-01-01T23:59:59.000Z

240

Gamma bang time/reaction history diagnostics for the National Ignition Facility using 90 deg. off-axis parabolic mirrors  

Science Conference Proceedings (OSTI)

Gas Cherenkov detectors (GCDs) have been used to convert fusion gamma into photons to achieve gamma bang time and reaction history measurements. The GCDs designed for OMEGA used Cassegrain reflector optics in order to fit inside a 10 in. manipulator. A novel design for the National Ignition Facility using 90 deg. off-axis parabolic mirrors will increase light collection efficiency from fusion gammas and achieve minimum time dispersion. The broadband Cherenkov light (from 200 to 800 nm) is relayed into a high-speed detector using three parabolic mirrors. Because light is collected from many source planes throughout the CO{sub 2} gas volume, the detector is positioned at the stop position rather than at an image position. The stop diameter and its position are independent of the light-generation location along the gas cell. The current design collects light from a 100 mm diameter by 500 mm long gas volume. Optical ray tracings demonstrate how light can be collected from different angled trajectories of the Compton electrons as they fly through the CO{sub 2} gas volume. A cluster of four channels will allow for increased dynamic range as well as for different gamma energy threshold sensitivities.

Malone, R. M. [National Security Technologies, P.O. Box 809, Los Alamos, New Mexico 87544 (United States); Herrmann, H. W.; Mack, J. M.; Young, C. S. [Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545 (United States); Stoeffl, W. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)

2008-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "left axis wti" 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

One-Axis Trackers -- Improved Reliability, Durability, Performance, and Cost Reduction; Final Subcontract Technical Status Report, 2 May 2006 - 31 August 2007  

DOE Green Energy (OSTI)

The overall objective of this subcontract is to reduce the total cost of electricity generated by single-axis tracking solar energy systems for utility and other large-scale commercial applications by improving performance and reliability and by reducing installation time, cost, and environmental impact.

Shingleton, J.

2008-02-01T23:59:59.000Z

242

Medium-solidity Vertical Axis Wind Turbines for use in Urban Environments S. Tullis, A. Fiedler, K. McLaren, S. Ziada  

E-Print Network (OSTI)

Vertical axis wind turbines are currently experiencing a renewed interest in small- scale applications in urban environments. However, vibration is a large issue with VAWTs due to their highly variable blade. A prototype of a commercially available 2.5 kW VAWT was wind tunnel tested to investigate its power

Tullis, Stephen

243

Interannual Variations of East Asian Trough Axis at 500 hPa and its Association with the East Asian Winter Monsoon Pathway  

Science Conference Proceedings (OSTI)

Interannual variations of the East Asian trough (EAT) axis at 500 hPa are studied with the European Centre for Medium-Range Weather Forecasts 40-yr reanalysis data. The associated circulation pattern and pathway of the East Asian winter monsoon (...

Lin Wang; Wen Chen; Wen Zhou; Ronghui Huang

2009-02-01T23:59:59.000Z

244

Highly Polarized Green Light Emitting Diode in m-Axis GaInN/GaN Shi You, Theeradetch Detchprohm, Mingwei Zhu  

E-Print Network (OSTI)

Highly Polarized Green Light Emitting Diode in m-Axis GaInN/GaN Shi You, Theeradetch Detchprohm in nonpolar light-emitting diodes (LEDs) covering the blue to green spectral range. In photo- luminescence, m's overall power efficiency. Linearly polarized light can be efficiently generated in GaInN/GaN-based light-emitting

Wetzel, Christian M.

245

Three-Dimensional Descriptions Based on the Analysis of the Invariant and Quasi-Invariant Properties of Some Curved-Axis Generalized Cylinders  

Science Conference Proceedings (OSTI)

AbstractWe address the recovery of object-level 3-D descriptions of some classes of curved-axis generalized cylinders. For this, the first part of the paper analyzes the projective properties of two common generic shapes, planar right constant generalized ... Keywords: Shape description, generalized cylinders, invariants, quasi-invariants, segmentation, grouping.

Mourad Zerroug; Ramakant Nevatia

1996-03-01T23:59:59.000Z

246

Is it Worth it? A Comparative Analysis of Cost-Benefit Projections for State Renewables Portfolio Standards  

E-Print Network (OSTI)

rates = 0.04 Average retail (% - left axis ) Average retail (/kWh - right axis ) RI (Tellus) - 18% NJ (

Chen, Cliff; Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

247

Renewables Portfolio Standards: A Factual Introduction to Experience from the United States  

E-Print Network (OSTI)

rates = 0.04 Average retail (% - left axis) Average retail (/kWh - right axis) WA (Lazarus) - 15% NJ (

Wiser, R.; Namovicz, C.; Gielecki, M.; Smith, R.

2008-01-01T23:59:59.000Z

248

Chart Gallery for January 2014 - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Total production (left axis) Production forecast (left axis) Source: Short-Term Energy Outlook, January 2014. Forecast 275 300 325 350 375 400 425 ...

249

Analysis and test results for a two-bladed, passive cycle pitch, horizontal-axis wind turbine in free and controlled yaw  

SciTech Connect

This report surveys the analysis and tests performed at Washington University in St. Louis, Missouri, on a horizontal-axis, two-laded wind turbine with teeter hub. The introduction is a brief account of results obtained during the 5-year period ending December 1985. The wind tunnel model and the test turbine (7.6 m [25 ft.] in diameter) at Washington University`s Tyson Research Center had a 67{degree} delta-three angle of the teeter axis. The introduction explains why this configuration was selected and named the passive cycle pitch (PCP) wind turbine. Through the analysis was not limited to the PCP rotor, all tests, including those done from 1986 to 1994, wee conducted with the same teetered wind rotor. The blades are rather stiff and have only a small elastic coning angle and no precone.

Holenemser, K.H. [Washington Univ., St. Louis, MO (United States)

1995-10-01T23:59:59.000Z

250

Parabolic versus elliptic focusing - Optimization of the focusing design of a cold triple-axis neutron spectrometer by Monte-Carlo simulations  

E-Print Network (OSTI)

We present Monte-Carlo simulations for the focusing design of a novel cold-neutron triple-axis spectrometer to be installed at the end position of the cold guide NL-1 of the research reactor FRM-II in Munich, Germany. Our simulations are of general relevance for the design of triple-axis spectrometers at end positions of neutron guides. Using the McStas program code we performed ray trajectories to compare parabolic and elliptic focusing concepts. In addition the design of the monochromator was optimized concerning crystal size and mosaic spread. The parabolic focusing concept is superior to the elliptic alternative in view of the neutron intensity distribution as a function of energy and divergence. In particular, the elliptical configuration leads to an inhomogeneous divergence distribution.

Komarek, A C; Braden, M

2011-01-01T23:59:59.000Z

251

General CP Violation in Minimal Left-Right Symmetric Model and Constraints on the Right-Handed Scale  

E-Print Network (OSTI)

In minimal left-right symmetric theories, the requirement of parity invariance allows only one complex phase in the Higgs potential and one in the Yukawa couplings, leading to a two-phase theory with both spontaneous and explicit CP violations. We present a systematic way to solve the right-handed quark mixing matrix analytically in this model and find that the leading order solution has the same hierarchical structure as the left-handed CKM matrix with one more CP-violating phase coming from the complex Higgs vev. Armed with this explicit right-handed mixing matrix, we explore its implications for flavor changing and conserving processes in detail, low-energy CP-violating observables in particular. We report an improved lower bound on the $W_R$ mass of 2.5 TeV from $\\Delta M_K$ and $\\Delta M_{B}$, and a somewhat higher bound (4 TeV) from kaon decay parameters $\\epsilon$, $\\epsilon'$, and neutron electric dipole moment. The new bound on the flavor-changing neutral Higgs mass is 25 TeV.

Zhang, Yue; Ji, Xiangdong; Mohapatra, Rabindra N

2007-01-01T23:59:59.000Z

252

Dosimetric Comparison of Intensity-Modulated Radiotherapy Plans, With or Without Anterior Myocardial Territory and Left Ventricle as Organs at Risk, in Early-Stage Left-Sided Breast Cancer Patients  

SciTech Connect

Purpose: We evaluated heart sparing using an intensity-modulated radiotherapy (IMRT) plan with the left ventricle (LV) and/or the anterior myocardial territory (AMT) as additional organs at risk (OARs). Methods and Materials: A total of 10 patients with left-sided breast cancer were selected for dosimetric planning. Both lungs, the right breast, heart, LV, and AMT were defined as OARs. We generated one tangential field plan and four IMRT plans for each patient. We examined the dose-volume histogram parameters of the planning target volume and OARs. Results: Compared with the tangential field plan, the mean dose to the heart in the IMRT plans did not show significant differences; however, the dose to the AMT and LV decreased by 18.7-45.4% and 10.8-37.4%, respectively. The maximal dose to the heart decreased by 18.6-35.3%, to the AMT by 22.0-45.1%, and to the LV by 23.5-45.0%, And the relative volumes of the heart (V{sub {>=}12}), AMT (V{sub >11}) and LV (V{sub >10}) decreased significantly with different levels, respectively. The volume of the heart, AMT, LV, both lungs, and right breast receiving {>=}5 Gy showed a significant increase. Compared with the IMRT (H) plan, the mean dose to the heart, AMT, and LV decreased by 17.5-21.5%, 25.2-29.8%, and 22.8-29.8% and the maximal dose by 13.6-20.6%, 23.1-29.6%, and 17.3-29.1%, respectively. The IMRT plans for both lungs and the right breast showed no significant differences. Conclusions: The IMRT plans with the addition of the AMT and/or LV as OARs considerably increased heart sparing. We recommend including the LV as an additional OAR in such plans.

Tan Wenyong [Key Laboratory of Molecular Biophysics of the Ministry of Education, Huazhong University of Science and Technology College of Life Science and Technology, Wuhan (China); Wang Xiaohong; Qiu Dasheng [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China); Liu Dong [Department of Radiology, Hubei Cancer Hospital, Wuhan (China); Jia Shaohui; Zeng Fanyu [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China); Chen Zhengwang [Key Laboratory of Molecular Biophysics of the Ministry of Education, Huazhong University of Science and Technology College of Life Science and Technology, Wuhan (China); Li Beihui; Xu Jiaozhen; Wei Lai [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China); Hu Desheng, E-mail: tanwyym@yahoo.com.cn [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China)

2011-12-01T23:59:59.000Z

253

Deposition of stress free c-axis oriented LiNbO{sub 3} thin film grown on (002) ZnO coated Si substrate  

Science Conference Proceedings (OSTI)

C-axis oriented lithium niobate thin films have been deposited on Si substrate using RF sputtering technique. A thin buffer layer of c-axis (002) oriented ZnO on Si substrate has been used as a nucleating layer to promote the growth of (006) oriented LiNbO{sub 3} film. The processing gas composition and pressure are found to be very critical in obtaining stress free LiNbO{sub 3} film having desired (006) orientation. The LiNbO{sub 3} films deposited under unique combination of sputtering pressure (10 mTorr) and argon percentage (80%) in reactive gas (Ar + O{sub 2}) composition become almost stress free having lattice parameter (1.3867 A) close to the bulk value. The observed variation in the structural properties and optical phonon modes observed by Raman spectroscopic studies of the oriented LiNbO{sub 3} thin film with stress has been correlated with growth kinetics.

Shandilya, Swati; Gupta, Vinay [Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India); Tomar, Monika [Miranda House, University of Delhi, Delhi 110007 (India)

2012-05-15T23:59:59.000Z

254

Probing TeV Left-Right Seesaw at Energy and Intensity Frontiers: a Snowmass White Paper  

E-Print Network (OSTI)

We discuss ways to probe the origin of neutrino masses at the Energy and Intensity frontiers, in TeV-scale left-right seesaw models where small neutrino masses arise via type-I seesaw mechanism. We consider generic ('vanilla') version of such models as well as a version which leads to 'large' light-heavy neutrino mixing while keeping the neutrino masses small in a natural manner. We point out specific observable implications of these classes of models at the LHC as well as in searches for lepton flavor violating processes such as $\\mu\\to e\\gamma$ and $\\mu\\to 3e$, and also in searches for lepton number violating neutrinoless double beta decay.

P. S. Bhupal Dev; R. N. Mohapatra

2013-08-09T23:59:59.000Z

255

Intermediate left-right gauge symmetry, unification of couplings and fermion masses in SUSY $SO(10)\\times S_4$  

E-Print Network (OSTI)

If left-right gauge theory occurs as an intermediate symmetry in a GUT then, apart from other advantages, it is possible to obtain the see-saw scale necessary to understand small neutrino masses with Majorana coupling of order unity. Barring threshold or non-renormalizable gravitational effects, or assumed presence of additional light scalar particles of unprescribed origin, all other attempts to achieve manifest one-loop gauge coupling unification in SUSY SO(10) with left-right intermediate symmetry have not been successful so far. Attributing this failure to lack of flavor symmetry in the GUT, we show how the spontaneous symmetry breaking of $SO(10)\\times S_4$ leads to such intermediate scale extending over a wide range, $M_R \\simeq 5\\times 10^{9}$ GeV to $10^{15}$ GeV. All the charged fermion masses are fitted at the see-saw scale, $M_N\\simeq M_R \\simeq 4 \\times 10^{13}$ GeV which is obtained with Majorana coupling $f_0 \\simeq 1$. Using a constrained parametrization in which CP-violation originates only from quark sector, besides other predictions made in the neutrino sector, the reactor mixing angle is found to be $\\theta_{13} \\simeq 3^{\\circ} - 5^{\\circ}$ which is in the range accessible to ongoing and planned experiments. The leptonic Dirac phase turns out to be $\\delta \\sim 2.9- 3.1$ radians with Jarlskog invariant $J \\sim 2.95 \\times 10^{-5} - 10^{-3}$.

M. K. Parida

2008-04-29T23:59:59.000Z

256

Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code  

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

Investigating the Influence of Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code D.C. Maniaci Pennsylvania State University Y. Li National Renewable Energy Laboratory Presented at the Oceans 11 Conference Kona, Hawaii September 19-21, 2011 Conference Paper NREL/CP-5000-52306 October 2011 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance 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.

257

Aerodynamic characteristics of seven symmetrical airfoil sections through 180-degree angle of attack for use in aerodynamic analysis of vertical axis wind turbines  

Science Conference Proceedings (OSTI)

When work began on the Darrieus vertical axis wind turbine (VAWT) program at Sandia National Laboratories, it was recognized that there was a paucity of symmetrical airfoil data needed to describe the aerodynamics of turbine blades. Curved-bladed Darrieus turbines operate at local Reynolds numbers (Re) and angles of attack (..cap alpha..) seldom encountered in aeronautical applications. This report describes (1) a wind tunnel test series conducted at moderate values of Re in which 0 less than or equal to ..cap alpha.. less than or equal to 180/sup 0/ force and moment data were obtained for four symmetrical blade-candidate airfoil sections (NACA-0009, -0012, -0012H, and -0015), and (2) how an airfoil property synthesizer code can be used to extend the measured properties to arbitrary values of Re (10/sup 4/ less than or equal to Re less than or equal to 10/sup 7/) and to certain other section profiles (NACA-0018, -0021, -0025).

Sheldahl, R E; Klimas, P C

1981-03-01T23:59:59.000Z

258

Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code  

DOE Green Energy (OSTI)

This paper describes a recent study to investigate the applicability of a horizontal-axis wind turbine (HAWT) structural dynamics and unsteady aerodynamics analysis program (FAST and AeroDyn respectively) to modeling the forces on marine hydrokinetic (MHK) turbines. This paper summarizes the added mass model that has been added to AeroDyn. The added mass model only includes flow acceleration perpendicular to the rotor disc, and ignores added mass forces caused by blade deflection. A model of the National Renewable Energy Laboratory's (NREL) Unsteady Aerodynamics Experiment (UAE) Phase VI wind turbine was analyzed using FAST and AeroDyn with sea water conditions and the new added mass model. The results of this analysis exhibited a 3.6% change in thrust for a rapid pitch case and a slight change in amplitude and phase of thrust for a case with 30{sup o} of yaw.

Maniaci, D. C.; Li, Y.

2011-10-01T23:59:59.000Z

259

Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code: Preprint  

DOE Green Energy (OSTI)

This paper describes a recent study to investigate the applicability of a horizontal-axis wind turbine (HAWT) structural dynamics and unsteady aerodynamics analysis program (FAST and AeroDyn respectively) to modeling the forces on marine hydrokinetic (MHK) turbines. It summarizes the added mass model that has been added to AeroDyn. The added mass model only includes flow acceleration perpendicular to the rotor disc, and ignores added mass forces caused by blade deflection. A model of the National Renewable Energy Laboratory's (NREL) Unsteady Aerodynamics Experiment (UAE) Phase VI wind turbine was analyzed using FAST and AeroDyn with sea water conditions and the new added mass model. The results of this analysis exhibited a 3.6% change in thrust for a rapid pitch case and a slight change in amplitude and phase of thrust for a case with 30 degrees of yaw.

Maniaci, D. C.; Li, Y.

2012-04-01T23:59:59.000Z

260

High electron mobility through the edge states in random networks of c-axis oriented wedge-shaped GaN nanowalls grown by molecular beam epitaxy  

Science Conference Proceedings (OSTI)

Transport and optical properties of random networks of c-axis oriented wedge-shaped GaN nanowalls grown spontaneously on c-plane sapphire substrates through molecular beam epitaxy are investigated. Our study suggests a one dimensional confinement of carriers at the top edges of these connected nanowalls, which results in a blue shift of the band edge luminescence, a reduction of the exciton-phonon coupling, and an enhancement of the exciton binding energy. Not only that, the yellow luminescence in these samples is found to be completely suppressed even at room temperature. All these changes are highly desirable for the enhancement of the luminescence efficiency of the material. More interestingly, the electron mobility through the network is found to be significantly higher than that is typically observed for GaN epitaxial films. This dramatic improvement is attributed to the transport of electrons through the edge states formed at the top edges of the nanowalls.

Bhasker, H. P.; Dhar, S.; Sain, A. [Physics Department, Indian Institute of Technology Bombay, Powai, Mumbai 400076 (India); Kesaria, Manoj; Shivaprasad, S. M. [International Centre for Material Science, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064 (India)

2012-09-24T23:59:59.000Z

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


261

A comparison of spanwise aerodynamic loads estimated from measured bending moments versus direct pressure measurements on horizontal axis wind turbine blades  

DOE Green Energy (OSTI)

Two methods can be used to determine aerodynamic loads on a rotating wind turbine blade. The first is to make direct pressure measurements on the blade surface. This is a difficult process requiring costly pressure instrumentation. The second method uses measured flap bending moments in conjunction with analytical techniques to estimate airloads. This method, called ALEST, was originally developed for use on helicopter rotors and was modified for use on horizontal axis wind turbine blades. Estimating airloads using flap bending moments in much simpler and less costly because measurements can be made with conventional strain gages and equipment. This paper presents results of airload estimates obtained using both methods under a variety of operating conditions. Insights on the limitations and usefulness of the ALEST bending moment technique are also included. 10 refs., 6 figs.

Simms, D A; Butterfield, C P

1991-10-01T23:59:59.000Z

262

Today in Energy - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

WTI (West Texas Intermediate) August 5, 2013 Spread narrows between Brent and WTI crude oil benchmark prices. June 28, ...

263

Dosimetric research on intensity-modulated arc radiotherapy planning for left breast cancer after breast-preservation surgery  

Science Conference Proceedings (OSTI)

Intensity-modulated radiotherapy (IMRT) has played an important role in breast cancer radiotherapy after breast-preservation surgery. Our aim was to study the dosimetric and implementation features/feasibility between IMRT and intensity-modulated arc radiotherapy (Varian RapidArc, Varian, Palo Alto, CA). The forward IMRT plan (f-IMRT), the inverse IMRT, and the RapidArc plan (RA) were generated for 10 patients. Afterward, we compared the target dose distribution of the 3 plans, radiation dose on organs at risk, monitor units, and treatment time. All 3 plans met clinical requirements, with RA performing best in target conformity. In target homogeneity, there was no statistical significance between RA and IMRT, but both of homogeneity were less than f-IMRT's. With regard to the V{sub 5} and V{sub 10} of the left lung, those in RA were higher than in f-IMRT but were lower than in IMRT; for V{sub 20} and V{sub 30}, the lowest was observed in RA; and in the V{sub 5} and V{sub 10} of the right lung, as well as the mean dose in normal-side breast and right lung, there was no statistically significance difference between RA and IMRT, and the lowest value was observed in f-IMRT. As for the maximum dose in the normal-side breast, the lowest value was observed in RA. Regarding monitor units (MUs), those in RA were higher than in f-IMRT but were lower than in IMRT. Treatment time of RA was 84.6% and 88.23% shorter than f-IMRT and IMRT, respectively, on average. Compared with f-IMRT and IMRT, RA performed better in target conformity and can reduce high-dose volume in the heart and left lung-which are related to complications-significantly shortening treatment time as well. Compared with IMRT, RA can also significantly reduce low-dose volume and MUs of the afflicted lung.

Yin Yong, E-mail: yinyongsd@yahoo.com.cn [School of Information Science and Engineering, Shandong University, Ji'nan (China); Department of Radiation Oncology, Shandong Cancer Hospital, Shandong Academy of Medical Scienses, Shandong Provincial Key Laboratory of Radiation Oncology (China); Chen Jinhu; Sun Tao; Ma Changsheng; Lu Jie; Liu Tonghai [Department of Radiation Oncology, Shandong Cancer Hospital, Shandong Academy of Medical Scienses, Shandong Provincial Key Laboratory of Radiation Oncology (China); Wang Ruozheng [Department of Radiation Oncology, Xinjiang Medical University, Affiliated Hospital, Urumchi (China)

2012-10-01T23:59:59.000Z

264

Effect on C-axis transport properties of a critical state in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}  

SciTech Connect

At low temperatures, the c-axis transport properties of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} single crystals depend strongly on the magnetic field history for fields applied along the c-axis, indicating the effect of a critical state in the ab direction. In this study, the authors report zero field cooled (ZFC), field cooled warming (FCW), and field cooled cooling (FCC) c-axis transport properties. In addition, they also report magnetic relaxation measurements on the same samples to identify the c-axis dissipation mechanism. They observe a relaxation of the c-axis resistivity that follows the relaxation of the flux profile across the ab plane. By identifying the irreversible temperature vs. magnetic field for H // c, they construct a phase diagram of vortex states. Finally, they will discuss the implication of the phase diagram and the features related to the transport properties of the Josephson-coupled system and the role of pancake vortices in highly two-dimensional superconductors.

Cho, J.H.; Maley, M.P.; Bulaevskii, L.N.

1995-12-31T23:59:59.000Z

265

CMS Search: Left Frame  

Science Conference Proceedings (OSTI)

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266

Experimental observation of left polarized wave absorption near electron cyclotron resonance frequency in helicon antenna produced plasma  

SciTech Connect

Asymmetry in density peaks on either side of an m = +1 half helical antenna is observed both in terms of peak position and its magnitude with respect to magnetic field variation in a linear helicon plasma device [Barada et al., Rev. Sci. Instrum. 83, 063501 (2012)]. The plasma is produced by powering the m = +1 half helical antenna with a 2.5 kW, 13.56 MHz radio frequency source. During low magnetic field (B < 100 G) operation, plasma density peaks are observed at critical magnetic fields on either side of the antenna. However, the density peaks occurred at different critical magnetic fields on both sides of antenna. Depending upon the direction of the magnetic field, in the m = +1 propagation side, the main density peak has been observed around 30 G of magnetic field. On this side, the density peak around 5 G corresponding to electron cyclotron resonance (ECR) is not very pronounced, whereas in the m = -1 propagation side, very pronounced ECR peak has been observed around 5 G. Another prominent density peak around 12 G has also been observed in m = -1 side. However, no peak has been observed around 30 G on this m = -1 side. This asymmetry in the results on both sides is explained on the basis of polarization reversal of left hand polarized waves to right hand polarized waves and vice versa in a bounded plasma system. The density peaking phenomena are likely to be caused by obliquely propagating helicon waves at the resonance cone boundary.

Barada, Kshitish K.; Chattopadhyay, P. K.; Ghosh, J.; Kumar, Sunil; Saxena, Y. C. [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)

2013-01-15T23:59:59.000Z

267

Pair production of Higgs bosons associated with $Z$ boson in the left-right twin Higgs model at the ILC  

E-Print Network (OSTI)

The left-right twin Higgs(LRTH) model predicts the existence of three additional Higgs bosons: one neutral Higgs $\\phi^{0}$ and a pair of charged Higgs bosons $\\phi^{\\pm}$. In this paper, we studied the production of a pair of charged and neutral Higgs bosons associated with standard model gauge boson $Z$ at the ILC, i.e., $e^{+}e^{-}\\rightarrow Z\\phi^{+}\\phi^{-}$ and $e^{+}e^{-}\\rightarrow Z\\phi^{0}\\phi^{0}$. We calculate the production rate and present the distributions of the various observables, such as, the distributions of the energy and the transverse momenta of final $Z$-boson and charged Higgs boson $\\phi^{-}$, the differential cross section of the invariant mass of charged Higgs bosons pair, the distribution of the angle between charged Higgs bosons pair and the production angle distributions of $Z$-boson and charged Higgs boson $\\phi^{-}$. Our numerical results show that, for the process $e^{+}e^{-}\\rightarrow Z\\phi^{+}\\phi^{-}$, the production rates are at the level of $10^{-1} fb$ with reasonable parameter values. For the process of $e^{+}e^{-}\\rightarrow Z\\phi^{0}\\phi^{0}$, we find that the production cross section are smaller than $6\\times 10^{-3} fb$ in most of parameter space. However, the resonance production cross section can be significantly enhanced.

Yao-Bei Liu; Xue-Lei Wang

2010-06-23T23:59:59.000Z

268

A new uniform parameterization and invariant 3D spherical harmonic shape descriptors for shape analysis of the heart's left ventricle - A pilot study  

Science Conference Proceedings (OSTI)

A new approach for uniform parameterization and rotation invariant global description of 3D triangular surface meshes of objects with a spherical topology is presented. It consists of two steps. First, an initial mapping based on a heat conduction model ... Keywords: Left ventricle, Myocardial scintigraphy, Rotation invariant 3D shape descriptors, Spherical harmonic model, Uniform parameterization

A. Ben Abdallah; F. Ghorbel; K. Chatti; H. Essabbah; M. H. Bedoui

2010-10-01T23:59:59.000Z

269

Gamma Bang Time/Reaction History Diagnostics for the National Ignition Facility (NIF) Using 90-degree Off-axis Parabolic Mirrors  

SciTech Connect

Gas Cherenkov detectors (GCD) have been used to convert fusion gamma into photons to achieve gamma bang time (GBT) and reaction history measurements. The GCD designed for Omega used Cassegrain reflector optics in order to fit inside a 10-inch manipulator. A novel design for the National Ignition Facility (NIF) using 90 off-axis parabolic (OAP) mirrors will increase light collection efficiency from fusion gammas and achieve minimum time dispersion. The broadband Cherenkov light (from 200 to 800 nm) is relayed into a high-speed detector using three parabolic mirrors. Because light is collected from many source planes throughout the CO2 gas volume, the detector is positioned at the stop position rather than an image position. The stop diameter and its position are independent of the light-generation location along the gas cell. The current design collects light from a 100-mm-diameter by 500-mm-long gas volume. Optical ray tracings demonstrate how light can be collected from different angled trajectories of the Compton electrons as they fly through the CO2 gas volume. A cluster of four channels will allow for increased dynamic range, as well as different gamma energy threshold sensitivities.

R.M. Malone, H.W. Herrmann, J.M. Mack, C.S. Young, W. Stoeffl

2008-10-01T23:59:59.000Z

270

Gamma Bang Time/Reaction History Diagnostics for the National Ignition Facility (NIF) Using 90-degree Off-axis Parabolic Mirrors  

SciTech Connect

Gas Cherenkov detectors (GCD) have been used to convert fusion gamma into photons to achieve gamma bang time (GBT) and reaction history measurements. The GCD designed for Omega used Cassegrain reflector optics in order to fit inside a ten-inch manipulator. A novel design for the National Ignition Facility (NIF) using 90 Off-Axis Parabolic (OAP) mirrors will increase light collection efficiency from fusion gammas and achieve minimum time dispersion. The broadband Cherenkov light (from 200 to 800 nm) is relayed into a high-speed detector using three parabolic mirrors. Because light is collected from many source planes throughout the CO2 gas volume, the detector is positioned at the stop position rather than an image position. The stop diameter and its position are independent of the light-generation location along the gas cell. The current design collects light from a 100-mm diameter by 500-mm-long gas volume. Optical ray tracings demonstrate how light can be collected from different angled trajectories of the Compton electrons as they fly through the CO2 gas volume. A cluster of four channels will allow for increased dynamic range as well as different gamma energy threshold sensitivities. 52.70.La, 29.40.Ka, 42.15.Eq, 07.60.-j, 07.85.-m

H.W. Herrmann, R.M. Malone, W. Stoeffl, J.M. Mack, C.S. Young

2008-06-01T23:59:59.000Z

271

N-Terminal Pro-B-Type Natriuretic Peptide Plasma Levels as a Potential Biomarker for Cardiac Damage After Radiotherapy in Patients With Left-Sided Breast Cancer  

SciTech Connect

Purpose: Adjuvant radiotherapy (RT) after breast-conserving surgery has been associated with increased cardiovascular mortality. Cardiac biomarkers may aid in identifying patients with radiation-mediated cardiac dysfunction. We evaluated the correlation between N-terminal pro-B-type natriuretic peptide (NT-proBNP) and troponin (TnI) and the dose of radiation to the heart in patients with left-sided breast cancer. Methods and Materials: NT-proBNP and TnI plasma concentrations were measured in 30 left-sided breast cancer patients (median age, 55.0 years) 5 to 22 months after RT (Group I) and in 30 left-sided breast cancer patients (median age, 57.0 years) before RT as control group (Group II). Dosimetric and geometric parameters of heart and left ventricle were determined in all patients of Group I. Seventeen patients underwent complete two-dimensional echocardiography. Results: NT-proBNP levels were significantly higher (p = 0.03) in Group I (median, 90.0 pg/ml; range, 16.7-333.1 pg/ml) than in Group II (median, 63.2 pg/ml; range, 11.0-172.5 pg/ml). TnI levels remained below the cutoff threshold of 0.07 ng/ml in both groups. In patients with NT-proBNP values above the upper limit of 125 pg/ml, there were significant correlations between plasma levels and V{sub 3Gy}(%) (p = 0.001), the ratios D{sub 15cm{sup 3}}(Gy)/D{sub mean}(Gy) (p = 0.01), the ratios D{sub 15cm}{sup 3}/D{sub 50%} (Gy) (p = 0.008) for the heart and correlations between plasma levels and V{sub 2Gy} (%) (p = 0.002), the ratios D{sub 1cm{sup 3}}(Gy)/D{sub mean}(Gy) (p = 0.03), and the ratios D{sub 0.5cm{sup 3}}(Gy)/D{sub 50%}(Gy) (p = 0.05) for the ventricle. Conclusions: Patients with left-sided breast cancer show higher values of NT-pro BNP after RT when compared with non-RT-treated matched patients, increasing in correlation with high doses in small volumes of heart and ventricle. The findings of this study show that the most important parameters are not the mean doses but instead the small percentage of organ volumes (heart or ventricle) receiving high dose levels, supporting the notion that the heart behaves as a serial organ.

D'Errico, Maria P., E-mail: patderrico@libero.it [Department of Laboratory Medicine, 'A. Perrino' Hospital, Brindisi (Italy); Grimaldi, Luca [Department of Medical Physics, 'A. Perrino' Hospital, Brindisi (Italy); Petruzzelli, Maria F. [Department of Radiation Oncology, 'A. Perrino' Hospital, Brindisi (Italy); Gianicolo, Emilio A.L. [Clinical Physiology Institute, National Research Council (IFC-CNR), Pisa-Lecce (Italy); Tramacere, Francesco [Department of Radiation Oncology, 'A. Perrino' Hospital, Brindisi (Italy); Monetti, Antonio; Placella, Roberto [Department of Laboratory Medicine, 'A. Perrino' Hospital, Brindisi (Italy); Pili, Giorgio [Department of Medical Physics, 'A. Perrino' Hospital, Brindisi (Italy); Andreassi, Maria Grazia; Sicari, Rosa; Picano, Eugenio [Clinical Physiology Institute, National Research Council (IFC-CNR), Pisa-Lecce (Italy); Portaluri, Maurizio [Department of Radiation Oncology, 'A. Perrino' Hospital, Brindisi (Italy); Clinical Physiology Institute, National Research Council (IFC-CNR), Pisa-Lecce (Italy)

2012-02-01T23:59:59.000Z

272

Anterior Myocardial Territory May Replace the Heart as Organ at Risk in Intensity-Modulated Radiotherapy for Left-Sided Breast Cancer  

SciTech Connect

Purpose: We investigated whether the heart could be replaced by the anterior myocardial territory (AMT) as the organ at risk (OAR) in intensity-modulated radiotherapy (IMRT) of the breast for patients with left-sided breast cancer. Methods and Materials: Twenty-three patients with left-sided breast cancer who received postoperative radiation after breast-conserving surgery were studied. For each patient, we generated five IMRT plans including heart (H), left ventricle (LV), AMT, LV+AMT, and H+LV as the primary OARs, respectively, except both lungs and right breast, which corresponded to IMRT(H), IMRT(LV), IMRT(AMT), IMRT(LV+AMT), and IMRT(H+LV). For the planning target volumes and OARs, the parameters of dose-volume histograms were compared. Results: The homogeneity index, conformity index, and coverage index were not compromised significantly in IMRT(AMT), IMRT(LV) and IMRT(LV+ AMT), respectively, when compared with IMRT(H). The mean dose to the heart, LV, and AMT decreased 5.3-21.5% (p < 0.05), 19.9-29.5% (p < 0.05), and 13.3-24.5% (p < 0.05), respectively. Similarly, the low (e.g., V5%), middle (e.g., V20%), and high (e.g., V30%) dose-volume of the heart, LV, and AMT decreased with different levels. The mean dose and V10% of the right lung increased by 9.2% (p < 0.05) and 27.6% (p < 0.05), respectively, in IMRT(LV), and the mean dose and V5% of the right breast decreased significantly in IMRT(AMT) and IMRT(LV+AMT). IMRT(AMT) was the preferred plan and was then compared with IMRT(H+LV); the majority of dose-volume histogram parameters of OARs including the heart, LV, AMT, both lungs, and the right breast were not statistically different. However, the low dose-volume of LV increased and the middle dose-volume decreased significantly (p < 0.05) in IMRT(AMT). Also, those of the right lung (V10%, V15%) and right breast (V5%, V10%) decreased significantly (p < 0.05). Conclusions: The AMT may replace the heart as the OAR in left-sided breast IMRT after breast-conserving surgery to decrease the radiation dose to the heart.

Tan Wenyong [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China); Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan (China); Liu Dong [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China); Xue Chenbin [Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan (China); Xu Jiaozhen; Li Beihui [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China); Chen Zhengwang [Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan (China); Hu Desheng [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China); Wang Xionghong, E-mail: tanwyym@yahoo.com.cn [Department of Radiotherapy, Hubei Cancer Hospital, Wuhan (China)

2012-04-01T23:59:59.000Z

273

A large liquid argon time projection chamber for long-baseline, off-axis neutrino oscillation physics with the NuMI beam  

Science Conference Proceedings (OSTI)

Results from neutrino oscillation experiments in the last ten years have revolutionized the field of neutrino physics. While the overall oscillation picture for three neutrinos is now well established and precision measurements of the oscillation parameters are underway, crucial issues remain. In particular, the hierarchy of the neutrino masses, the structure of the neutrino mixing matrix, and, above all, CP violation in the neutrino sector are the primary experimental challenges in upcoming years. A program that utilizes the newly commissioned NuMI neutrino beamline, and its planned upgrades, together with a high-performance, large-mass detector will be in an excellent position to provide decisive answers to these key neutrino physics questions. A Liquid Argon time projection chamber (LArTPC) [2], which combines fine-grained tracking, total absorption calorimetry, and scalability, is well matched for this physics program. The few-millimeter-scale spatial granularity of a LArTPC combined with dE/dx measurements make it a powerful detector for neutrino oscillation physics. Scans of simulated event samples, both directed and blind, have shown that electron identification in {nu}{sub e} charged current interactions can be maintained at an efficiency of 80%. Backgrounds for {nu}{sub e} appearance searches from neutral current events with a {pi}{sup 0} are reduced well below the {approx} 0.5-1.0% {nu}{sub e} contamination of the {nu}{sub {mu}} beam [3]. While the ICARUS collaboration has pioneered this technology and shown its feasibility with successful operation of the T600 (600-ton) LArTPC [4], a detector for off-axis, long-baseline neutrino physics must be many times more massive to compensate for the low event rates. We have a baseline concept [5] based on the ICARUS wire plane structure and commercial methods of argon purification and housed in an industrial liquefied-natural-gas tank. Fifteen to fifty kton liquid argon capacity tanks have been considered. A very preliminary cost estimate for a 50-kton detector is $100M (unloaded) [6]. Continuing R&D will emphasize those issues pertaining to implementation of this very large scale liquid argon detector concept. Key hardware issues are achievement and maintenance of argon purity in the environment of an industrial tank, the assembly of very large electrode planes, and the signal quality obtained from readout electrodes with very long wires. Key data processing issues include an initial focus on rejection of cosmic rays for a surface experiment. Efforts are underway at Fermilab and a small number of universities in the US and Canada to address these issues with the goal of embarking on the construction of industrial-scale prototypes within one year. One such prototype could be deployed in the MiniBooNE beamline or in the NuMI surface building where neutrino interactions could be observed. These efforts are complementary to efforts around the world that include US participation, such as the construction of a LArTPC for the 2-km detector location at T2K [7]. The 2005 APS neutrino study [1] recommendations recognize that ''The development of new technologies will be essential for further advances in neutrino physics''. In a recent talk to EPP2010, Fermilab director P. Oddone, discussing the Fermilab program, states on his slides: ''We want to start a long term R&D program towards massive totally active liquid Argon detectors for extensions of NOvA''. [8]. As such, we are poised to enlarge our R&D efforts to realize the promise of a large liquid argon detector for neutrino physics.

Finley, D.; Jensen, D.; Jostlein, H.; Marchionni, A.; Pordes, S.; Rapidis, P.A.; /Fermilab; Bromberg, C.; /Michigan State U.; Lu, C.; McDonald, T.; /Princeton U.; Gallagher, H.; Mann, A.; Schneps, J.; /Tufts U.; Cline, D.; Sergiampietri, F.; Wang, H.; /UCLA; Curioni, A.; Fleming, B.T.; /Yale U.; Menary, S.; /York U., Canada

2005-09-01T23:59:59.000Z

274

A Comprehensive Analysis of Cardiac Dose in Balloon-Based High-Dose-Rate Brachytherapy for Left-Sided Breast Cancer  

SciTech Connect

Purpose: To investigate radiation dose to the heart in 60 patients with left-sided breast cancer who were treated with balloon-based high-dose-rate brachytherapy using MammoSite or Contura applicators. Methods and Materials: We studied 60 consecutive women with breast cancer who were treated with 34 Gy in 10 twice-daily fractions using MammoSite (n = 37) or Contura (n = 23) applicators. The whole heart and the left and right ventricles were retrospectively delineated, and dose-volume histograms were analyzed. Multiple dosimetrics were reported, such as mean dose (D{sub mean}); relative volume receiving 1.7, 5, 10, and 20 Gy (V1.7, V5, V10, and V20, respectively); dose to 1 cc (D{sub 1cc}); and maximum point dose (D{sub max}). Biologic metrics, biologically effective dose and generalized equivalent uniform dose were computed. The impact of lumpectomy cavity location on cardiac dose was investigated. Results: The average {+-} standard deviation of D{sub mean} was 2.45 {+-} 0.94 Gy (range, 0.56-4.68) and 3.29 {+-} 1.28 Gy (range, 0.77-6.35) for the heart and the ventricles, respectively. The average whole heart V5 and V10 values were 10.2% and 1.3%, respectively, and the heart D{sub max} was >20 Gy in 7 of 60 (11.7%) patients and >25 Gy in 3 of 60 (5%) patients. No cardiac tissue received {>=}30 Gy. The V1.7, V5, V10, V20, and D{sub mean} values were all higher for the ventricles than for the whole heart. For balloons located in the upper inner quadrant of the breast, the average whole heart D{sub mean} was highest. The D{sub mean}, biologically effective dose, and generalized equivalent uniform dose values for heart and ventricles decreased with increasing minimal distance from the surface of the balloon. Conclusions: On the basis of these comprehensive cardiac dosimetric data, we recommend that cardiac dose be routinely reported and kept as low as possible in balloon-based high-dose-rate brachytherapy treatment planning for patients with left-sided breast cancer so the correlation with future cardiac toxicity data can be investigated.

Valakh, Vladimir, E-mail: vladimir@valakh.com [Department of Radiation Oncology, Allegheny General Hospital, Pittsburgh, PA (United States); Kim, Yongbok; Werts, E. Day; Trombetta, Mark G. [Department of Radiation Oncology, Allegheny General Hospital, Pittsburgh, PA (United States); Drexel University College of Medicine, Allegheny Campus, Pittsburgh, PA (United States)

2012-04-01T23:59:59.000Z

275

First measurement of the left-right cross section asymmetry in Z boson production at E[sub cm] = 91. 55 GeV  

Science Conference Proceedings (OSTI)

The left-right cross section asymmetry for Z boson production in e[sup +]e[sup -] annihilation (A[sub LR]) has been measured at E[sub cm] = 91.55 GeV with the SLD detector at the SLAC Linear Collider (SLC) using a longitudinally polarized electron beam. The electron polarization was continually monitored with a Compton scattering polarimeter, and was typically 22%. We have accumulated a sample of [approximately]10,200 Z events. We find that A[sup LR] = 0.100 [plus minus] 0.044 [plus minus] 0.003 where the first error is statistical and the second is systematic. From this measurement, we determine the weak mixing angle defined at the Z boson pole to be sin[sup 2][theta](lept/w) = 0.2378 [plus minus] 0.0056.

Rowson, P.C. (Columbia Univ., New York, NY (United States). Dept. of Physics)

1992-11-01T23:59:59.000Z

276

First measurement of the left-right cross section asymmetry in Z boson production at E{sub cm} = 91.55 GeV  

SciTech Connect

The left-right cross section asymmetry for Z boson production in e{sup +}e{sup -} annihilation (A{sub LR}) has been measured at E{sub cm} = 91.55 GeV with the SLD detector at the SLAC Linear Collider (SLC) using a longitudinally polarized electron beam. The electron polarization was continually monitored with a Compton scattering polarimeter, and was typically 22%. We have accumulated a sample of {approximately}10,200 Z events. We find that A{sup LR} = 0.100 {plus_minus} 0.044 {plus_minus} 0.003 where the first error is statistical and the second is systematic. From this measurement, we determine the weak mixing angle defined at the Z boson pole to be sin{sup 2}{theta}(lept/w) = 0.2378 {plus_minus} 0.0056.

Rowson, P.C. [Columbia Univ., New York, NY (United States). Dept. of Physics; The SLD Collaboration

1992-11-01T23:59:59.000Z

277

The left-right forward-backward asymmetry of heavy quarks measured with jet charge and with leptons at the SLD  

SciTech Connect

The authors present direct measurements of the left-right asymmetry of b- and c-quarks from the decay of Z{sup 0} bosons produced in the annihilation of longitudinally polarized electrons and unpolarized positrons. Two complementary techniques are presented: (1) Z{sup 0} {yields} b{bar b} decays are tagged using track impact parameters with b{bar b} discrimination provided by momentum-weighted track charge; (2) semileptonic b-decays are tagged using high p and p{sub T} muons and electrons. The preliminary results from their 1993 data sample are: A{sub b} = 0.93 {+-} 0.13 {+-} 0.13 for the jet charge and A{sub b} = 0.93 {+-} 0.14 {+-} 0.09, and A{sub c} = 0.40 {+-} 0.23 {+-} 0.20 for the leptons, where the first error is statistical and the second systematic.

Williams, D.C. [Massachusetts Institute of Technology, Cambridge, MA (United States)]|[Stanford Univ., CA (United States). Stanford Linear Accelerator Center

1994-10-01T23:59:59.000Z

278

This page intentionally left blank. .  

Science Conference Proceedings (OSTI)

... the most reliable reservoirs to help curb emissions of greenhouse gases, and thus constitutes a major breakthrough in carbon sequestration efforts. ...

2010-07-27T23:59:59.000Z

279

DOE/EA-1570: Final Environmental Assessment for Construction and Operation of Neutrinos at the Main Injector Off-Axis Electron Neutrino Appearance Experiment at the Fermi National Accelerator Laboratory, Batavia, Illinois, and St. Louis County, Minnesota  

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

70 70 FINAL ENVIRONMENTAL ASSESSMENT Environmental Assessment for Construction and Operation of Neutrinos at the Main Injector Off-Axis Electron Neutrino (ν e ) Appearance Experiment (NOvA) at the Fermi National Accelerator Laboratory, Batavia, Illinois, and St. Louis County, Minnesota U.S. Department of Energy, Lead Agency Fermi Site Office Batavia, IL U.S. Army Corps of Engineers, Cooperating Agency St. Paul District St. Paul, MN June 2008 (DOE/EA-1570) NOvA Environmental Assessment June 2008 ii DISCLAIMER Reference herein to any specific commercial product, process or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any

280

www.eia.gov  

U.S. Energy Information Administration (EIA)

Quarterly OPEC spare crude oil capacity and WTI spot prices ,,, Year,Quarter,OPEC spare capacity (million barrels per day),WTI price (real 2010 dollars) ...

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281

A measurement of the left-right cross section asymmetry in Z{sup 0} production with polarized e{sup +}e{sup {minus}} collisions  

Science Conference Proceedings (OSTI)

The Stanford Linear Collider at SLAC is an e{sup +}e{sup {minus}} collider running at {radical}s {approx} M{sub Z} and has provided an electron beam with longitudinal polarization at the SLC interaction point. The 1992 polarized run data were taken with the SLD detector. The author presents here the measurement of the left-right cross section asymmetry (A{sub LR}) for the 1992 run. The polarized run began in May and ended in September of 1992 at a mean center-of-mass energy of 91.56 GeV. Tower hit information of the liquid argon calorimeter and endcap warm iron calorimeter pads were used for selecting hadronic Z{sup 0} or tau pair events. The SLD detector collected about 11,000 events during this run. The magnitude of the longitudinal polarization of the electron beam was continuously measured by a polarimeter based on Compton scattering, and was monitored by a polarimeter based on Moller scattering. The luminosity-weighted average longitudinal polarization during the 1992 run was measured as 22.4 {+-} 0.6 (syst.)%. From these data, the value of A{sub LR} has been measured to be 0.102 {+-} 0.044 (stat.) {+-} 0.003 (syst.), corresponding to an effective electroweak mixing angle (sin{sup 2}{theta}{sub w}{sup eff}) of 0.2375 {+-} 0.0056 (stat.) {+-} 0.0004 (syst.). The error is dominated by the statistical error. This value of sin{sup 2}{theta}{sub w}{sup eff} is in good agreement with existing measurements from other experiments. Studies of improvements in A{sub LR} event selection for future high-statistics runs are also discussed.

Park, H.

1993-12-01T23:59:59.000Z

282

Helical axis stellarator with noninterlocking planar coils  

DOE Patents (OSTI)

The present invention generates stellarator fields having favorable properties (magnetic well and large rotational transform) by a simple coil system consisting only of unlinked planar non-circular coils. At large rotational transform toroidal effects on magnetic well and rotational transform are small and can be ignored. We do so herein, specializing in straight helical systems.

Reiman, A.; Boozer, A.H.

1984-03-06T23:59:59.000Z

283

BT9 Triple-axis spectrometer  

Science Conference Proceedings (OSTI)

... translations, make sure that the motors are powered ... active if the rotating collimator motor is off ... SAFETY NOTE: When using high magnetic fields be ...

284

Dual Axis Radiographic Hydrodynamic Test Facility | National...  

National Nuclear Security Administration (NNSA)

program, the DARHT is the world's most powerful x-ray machine. DARHT consists of two electron accelerators oriented at right angles to one another. Each accelerator creates a...

285

Thermal Triple Axis Publications, 2001-Oct  

Science Conference Proceedings (OSTI)

... Unconventional Metallic Magnetism in LaCrSb 3 , E. Granado, H. Martinho, MS Serchelli, PG Pagliuso, D. Jackson, JW Lynn, C. Rettori, SB Oseroff ...

286

Triple-Axis Spectroscopy Mark Lumsden  

E-Print Network (OSTI)

TAS Instruments at HFIR: HB1A Ames Laboratory Fixed Ei TAS 5 Instrument scientist: Jerel Zarestky TAS Instruments at HFIR: HB1 Polarized TAS 6 Currently, unpolarized with vertically focusing PG002: Andrey Zheludev #12;OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY TAS Instruments at HFIR: HB3

287

Thermal Triple Axis Publications, 2001-Oct  

Science Conference Proceedings (OSTI)

... Z.-G. Ye, and G. Shirane, in Fundamental Physics of ... Ordering, JW Lynn and S. Skanthakumar, Handbook on the Physics and Chemistry of Rare ...

288

Thermal Triple Axis Publications, 2001-Oct  

Science Conference Proceedings (OSTI)

... Ordering, JW Lynn and S. Skanthakumar, Handbook on the Physics and Chemistry of Rare ... Z.-G. Ye, and G. Shirane, in Fundamental Physics of ...

289

Diagnostic X-Multi-Axis Beamline  

SciTech Connect

Tomographic reconstruction of explosive events require time resolved multipal lines of sight. Considered here is a four (or eight) line of sight beam layout for a nominal 20 MeV 2000 Ampere 2 microsecond electron beam for generation of x-rays 0.9 to 5 meters from a given point, the ''firing point''. The requirement of a millimeter spatial x-ray source requires that the electron beam be delivered to the converter targets with sub-millimeter precision independent of small variations in beam energy and initial conditions. The 2 usec electron beam pulse allows for four bursts in each line, separated in time by about 500 microseconds. Each burst is divided by a electro-magnetic kicker into four (or eight) pulses, one for each beamline. The arrival time of the four (or eight) beam pulses at the x-ray target can be adjusted by the kicker timing and the sequence that the beams of each burst are switched into the different beamlines. There exists a simple conceptual path from a four beamline to a eight beamline upgrade. The eight line beamline is built up from seven unique types of sub-systems or ''blocks''. The beamline consists of 22 of these functional blocks and contains a total of 455 individual magnets, figure 1. The 22 blocks are inter-connected by a total of 30 straight line inter-block sections (IBS). Beamlines 1-4 are built from 12 blocks with conceptual layout structure shown in figure 2. Beamlines 5-8 are built with an additional 10 blocks with conceptual layout structure shown in figure 3. This beamline can be thought of as looking like a lollipop consisting of a 42 meter long stick leading to a 60 by 70 meter rectangular candy blob consisting of the eight lines of sight. The accelerator providing the electron beam is at the end of the stick and the firing point is at the center of the blob. The design allows for a two stage implementation. Beamlines 1-3 can be installed to provide a tomographic azimuthal resolution of 45 degrees. An upgrade can later be made by adding beamlines 5-8 azimuthally indexed so as to provide an azimuthal resolution of 22.5 degrees. All eight beamlines point down by 10 degrees (pitch). The x-ray converter target can be located along each beamline anywhere between 0 to 5 meters from the firing point. An example of inter-facing the Diagnostic X facility with the Darht II accelerator located at LANL will be given.

Paul, A C

2000-04-05T23:59:59.000Z

290

Angular Distributions of Fragments Originating from the Spontaneous Fission of Oriented Nuclei and Problem of the Conservation of the Spin Projection onto the Symmetry Axis of a Fissile Nucleus  

Science Conference Proceedings (OSTI)

The concept of transition fission states, which was successfully used to describe the angular distributions of fragments for the spontaneous and low-energy induced fission of axisymmetric nuclei, proves to be correct if the spin projection onto the symmetry axis of a fissile nucleus is an integral of the motion for the external region from the descent of the fissile nucleus from the external fission barrier to the scission point. Upon heating a fissile nucleus in this region to temperatures of T {approx_equal} 1 MeV (this is predicted by many theoretical models of the fission process), the Coriolis interaction uniformly mixes the possible projections of the fissile-nucleus spin for the case of low spin values, this leading to the loss of memory about transition fission states in the asymptotic region where the angular distributions of fragments are formed. Within quantum-mechanical fission theory, which takes into account deviations from A. Bohr's formula, the angular distributions of fragments are calculated for spontaneously fissile nuclei aligned by an external magnetic field at ultralow temperatures, and it is shown that an analysis of experimental angular distributions of fragments would make it possible to solve the problem of spin-projection conservation for fissile nuclei in the external region.

Kadmensky, S.G.; Rodionova, L.V. [Voronezh State University, Universitetskaya pl. 1, Voronezh, 394693 (Russian Federation)

2005-09-01T23:59:59.000Z

291

Crude Oil Affects Gasoline Prices  

U.S. Energy Information Administration (EIA)

Crude Oil Affects Gasoline Prices. WTI Crude Oil Price. Retail Gasoline Price. Source: Energy Information Administration

292

Quantifying the Reproducibility of Heart Position During Treatment and Corresponding Delivered Heart Dose in Voluntary Deep Inhalation Breath Hold for Left Breast Cancer Patients Treated With External Beam Radiotherapy  

SciTech Connect

Purpose: Voluntary deep inhalation breath hold (VDIBH) reduces heart dose during left breast irradiation. We present results of the first study performed to quantify reproducibility of breath hold using bony anatomy, heart position, and heart dose for VDIBH patients at treatment table. Methods and Materials: Data from 10 left breast cancer patients undergoing VDIBH whole-breast irradiation were analyzed. Two computed tomography (CT) scans, free breathing (FB) and VDIBH, were acquired to compare dose to critical structures. Pretreatment weekly kV orthogonal images and tangential ports were acquired. The displacement difference from spinal cord to sternum across the isocenter between coregistered planning Digitally Reconstructed Radiographs (DRRs) and kV imaging of bony thorax is a measure of breath hold reproducibility. The difference between bony coregistration and heart coregistration was the measured heart shift if the patient is aligned to bony anatomy. Results: Percentage of dose reductions from FB to VDIBH: mean heart dose (48%, SD 19%, p = 0.002), mean LAD dose (43%, SD 19%, p = 0.008), and maximum left anterior descending (LAD) dose (60%, SD 22%, p = 0.008). Average breath hold reproducibility using bony anatomy across the isocenter along the anteroposterior (AP) plane from planning to treatment is 1 (range, 0-3; SD, 1) mm. Average heart shifts with respect to bony anatomy between different breath holds are 2 {+-} 3 mm inferior, 1 {+-} 2 mm right, and 1 {+-} 3 mm posterior. Percentage dose changes from planning to delivery: mean heart dose (7%, SD 6%); mean LAD dose, ((9%, SD 7%)S, and maximum LAD dose, (11%, SD 11%) SD 11%, p = 0.008). Conclusion: We observed excellent three-dimensional bony registration between planning and pretreatment imaging. Reduced delivered dose to heart and LAD is maintained throughout VDIBH treatment.

McIntosh, Alyson; Shoushtari, Asal N.; Benedict, Stanley H.; Read, Paul W. [Department of Radiation Oncology, University of Virginia, Charlottesville, Virginia (United States); Wijesooriya, Krishni, E-mail: kw5wx@virginia.edu [Department of Radiation Oncology, University of Virginia, Charlottesville, Virginia (United States)

2011-11-15T23:59:59.000Z

293

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

9/87 9/87 Design Study for a Low-Enriched Uranium Core for the High Flux Isotope Reactor, Annual Report for FY 2008 March 2009 Prepared by R. T. Primm III D. Chandler G. Ilas B. C. Jolly J. H. Miller J. D. Sease DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.fedworld.gov

294

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10/255 10/255 Medium Truck Duty Cycle Data from Real-World Driving Environments: Project Interim Report 5 January 2011 Prepared by Oscar Franzese, Mary Beth Lascurain, Gary Capps R&D Staff DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.gov Web site http://www.ntis.gov/support/ordernowabout.htm Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange

295

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

32 32 Supply Chain-Based Solution to Prevent Fuel Tax Evasion: Proof of Concept Final Report November 2011 Prepared by Gary Capps Mary Beth Lascurain Oscar Franzese Duncan Earl David West Timothy McIntyre Shih-Miao Chin Ho-Ling Hwang Raynella Connatser Samuel Lewis ORNL/TM-2011/132 Energy and Transportation Science Division SUPPLY CHAIN-BASED SOLUTION TO PREVENT FUEL TAX EVASION: PROOF OF CONCEPT FINAL REPORT Gary Capps Mary Beth Lascurain Oscar Franzese Duncan Earl David West Timothy McIntyre Shih-Miao Chin Ho-Ling Hwang Raynella Connatser Samuel Lewis Date Published: November 2011 Prepared by OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831-6283 managed by UT-BATTELLE, LLC for the U.S. DEPARTMENT OF ENERGY

296

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

respectively. The fuel plates, which are involute in shape, are made of highly enriched uranium (HEU) in a mixture of U 3 O 8 -Al sandwiched between two sheets of Al-6061....

297

This page intentionally left blank. ACKNOWLEDGMENTS ........................................................................................................ xi  

E-Print Network (OSTI)

the EPA's Emissions & Generation Resource Integrated Database (eGRID) non-baseload sub-regional grid. 17 The EPA's Emissions & Generation Resource Integrated Database (eGRID) provides data on power plant of the purchased electricity (using EPA eGRID regional emissions factors), and (2) an adjusted estimate

Argonne National Laboratory

298

Wave refraction in left-handed materials  

E-Print Network (OSTI)

We examine the response of a plane wave incident on a flat surface of a medium characterized by simultaneously negative electric and magnetic susceptibilities by solving Maxwell's equations explicitly and without making any assumptions on the way. In the literature up to date, it has been assumed that negative refractive materials are necessarily frequency dispersive. We propose an alternative to this assumption by suggesting that the requirement of positive energy density should be relaxed, and discuss the implications of such a proposal. More specifically, we show that once negative energy solutions are accepted, the necessity for frequency dispersion is no longer necessary. Finally, we argue that, for the purposes of discussing negative index materials, the use of group velocity as the physically significant quantity is misleading, and suggest that any discussion involving it should be carefully reconsidered.

Chimonidou, Antonia

2008-01-01T23:59:59.000Z

299

Left: Professor Steve Potter and his  

E-Print Network (OSTI)

of Energy, the study shows that the number of collaborators is the strongest predictor of a scientist- lishing productivity, including scientists'rank, age, gender, collaboration strategies and job different energy levels, they can be addressed individually by varying the voltage injected into the array

Sherrill, David

300

[Cover page, Margins: Left 1 in  

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

of being mounted on a commercial vehicle during its normal vocation, and would require no human interaction for initialization on vehicle startup at the beginning of each day or...

Note: This page contains sample records for the topic "left axis wti" 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

[Cover page, Margins: Left 1 in  

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

the system need improvement. It is desirous that the overall system be more stable during weather events and power fluctuations. The next step for creating a nationally-deployable...

302

[Cover page, Margins: Left 1 in  

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

1/479 1/479 Real-Time Dynamic Brake Assessment Proof of Concept Test Final Report 1 November 2011 Prepared by Mary Beth Lascurain Hudson Oscar Franzese Gary Capps DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.gov Web site http://www.ntis.gov/support/ordernowabout.htm Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange (ETDE)

303

EIA: This Week in Petroleum - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

The Brent-WTI spread, the price differential between Brent crude oil and West Texas Intermediate (WTI) crude oil, averaged just over $3 per barrel in July, its lowest ...

304

Leverage vs. Feedback: Which Effect Drives the Oil Market? Sofiane Aboura  

E-Print Network (OSTI)

on the WTI crude oil spot price. An increase in the volatility subsequent to an increase in the oil price (i- and fund-managers. Keywords: WTI, Crude Oil Price, Implied Volatility, Leverage Effect, Feedback Effect. JEL Codes: C4, G1, Q4. 1 Introduction The rise of the US benchmark oil West Texas Intermediate (WTI

Paris-Sud XI, Université de

305

Record of Decision Dual Axis Radiographic Hydrodynamic Test Facility  

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

88 88 Federal Register / Vol. 60, No. 199 / Monday, October 16, 1995 / Notices Education, National Assessment Governing Board, Suite 825, 800 North Capitol Street NW., Washington, DC, from 8:30 a.m. to 5 p.m. Roy Truby, Executive Director, National Assessment Governing Board. [FR Doc. 95-25557 Filed 10-13-95; 8:45 am] BILLING CODE 4000-01-M DEPARTMENT OF ENERGY Notice of Certification of the Radiological Condition of the Baker and Williams Warehouses Site, New York, NY, 1991-1993 AGENCY: Office of Environmental Management, Department of Energy (DOE). ACTION: Notice of certification. SUMMARY: The Department has completed remedial action to decontaminate warehouses (Buildings 513-519, 521-527, and 529-535 West 20th Street) in New York, New York, and the certification docket is available.

306

Laboratory Measurements of Axis Ratios for Large Raindrops  

Science Conference Proceedings (OSTI)

The oscillations of moderate to large raindrops are investigated using a seven-story fall column with shape data obtained from multiple-strobe photographs. Measurements are made at a fall distance of 25 m for drops of D = 2.5-, 2.9-, 3.6-, and ...

Karen Andsager; Kenneth V. Beard; Neil F. Laird

1999-08-01T23:59:59.000Z

307

Effect of winglets on a vertical-axis wind turbine.  

E-Print Network (OSTI)

??An helical rotor blade configuration, made of a NACA 0021 airfoil, is defined and three candidate winglets, characterized by a wingtip extension of 1.00 blade (more)

Gasparoni, Lorenzo

2012-01-01T23:59:59.000Z

308

Flexible pipe crawling device having articulated two axis coupling  

DOE Patents (OSTI)

An apparatus is described for moving through the linear and non-linear segments of piping systems. The apparatus comprises a front leg assembly, a rear leg assembly, a mechanism for extension and retraction of the front and rear leg assembles with respect to each other, such as an air cylinder, and a pivoting joint. One end of the flexible joint attaches to the front leg assembly and the other end to the air cylinder, which is also connected to the rear leg assembly. The air cylinder allows the front and rear leg assemblies to progress through a pipe in inchworm' fashion, while the joint provides the flexibility necessary for the pipe crawler to negotiate non-linear piping segments. The flexible connecting joint is coupled with a spring-force suspension system that urges alignment of the front and rear leg assemblies with respect to each other. The joint and suspension system cooperate to provide a firm yet flexible connection between the front and rear leg assemblies to allow the pivoting of one with respect to the other while moving around a non-linear pipe segment, but restoring proper alignment coming out of the pipe bend. 4 figures.

Zollinger, W.T.

1994-05-10T23:59:59.000Z

309

Development and Test Plans for a small Vertical Axis Turbine...  

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

and Transport Urban and Regional Air Quality Research Facilities Advanced Windows Test Facility BATT Fabrication Laboratory Cookstove Efficiency and Emissions Testing...

310

Drop Axis Ratios from a 2D Video Disdrometer  

Science Conference Proceedings (OSTI)

Results from an experiment to measure the drop shapes using a 2D video disdrometer (2DVD) are reported. Under calm conditions, drops were generated from a hose located on a bridge 80 m above ground, this height being sufficient to allow drop ...

Merhala Thurai; V. N. Bringi

2005-07-01T23:59:59.000Z

311

BT7 double-focusing triple-axis  

Science Conference Proceedings (OSTI)

... The blades are composed of compressed lithium fluoride on the surface toward the source, with a 10 cm thick aluminum frame holder behind this ...

312

Computing Minimum Volume Enclosing Axis-Aligned Ellipsoids  

E-Print Network (OSTI)

Jun 26, 2006 ... the one-dimensional line search problem that arises in each iteration of ...... that this computation only adds a fixed overhead at each iteration of...

313

Two-axis tracker for solar panels and the like  

DOE Patents (OSTI)

A tracker including an outer post having elongated bore and a lower end mounted on a sub-structure, an inner pole rotatably received in the elongated bore, a lower bearing in the bore adjacent a lower end of the outer post and attached thereto to be constrained from lateral movement and mounted on the sub-structure such that a lower end of the inner pole rests on and is supported by the lower bearing, an upper bearing near an upper end of the outer post, a circumferential drive supported on the outer post for rotating the inner pole relative to the outer post, such that substantially a full weight of a load on the inner pole is directly transmitted to the sub-structure and lateral force and torque leverage are placed on a full length of the outer post by way of the upper and lower bearing.

Liao, Henry H.

2013-04-16T23:59:59.000Z

314

Digital Control of a Six-Axis Manipulator  

E-Print Network (OSTI)

This paper describes a scheme for providing low-level control of a multi-link serial manipulator. The goal was to achieve adaptive behavior without making assumptions about the environment.

Blanchard, David C.

315

Gesture identification based on zone entry and axis crossing  

Science Conference Proceedings (OSTI)

Hand gesture interfaces have been proposed as an alternative to the remote controller, and products with such interfaces have appeared in the market. We propose the vision-based unicursal gesture interface (VUGI) as an extension of our unicursal gesture ...

Ryosuke Aoki; Yutaka Karatsu; Masayuki Ihara; Atsuhiko Maeda; Minoru Kobayashi; Shingo Kagami

2011-07-01T23:59:59.000Z

316

Doing Neutron Scattering Science with the Multi-Axis Crystal ...  

Science Conference Proceedings (OSTI)

... at the NIST Center for Neutron Research began commissioning operation on ... and Internal Stress Analysis after High Temperature Corrosion in Power Plants.

317

MicroMaxTM Series 670 Single Axis Board Level  

E-Print Network (OSTI)

and ERS1 as marker genes for the ethylene response, PIN1 and IAA19 for the auxin response, MFC19 expressed in the guard cells and affects the stomatal response to ABA: guard cells of the dor mutant SCFDOR activity could result in increased ABA sensitivity in the guard cells, which would in turn explain

Kleinfeld, David

318

AXIS Dance Company: The Anxiety and the Afterglow  

E-Print Network (OSTI)

the exclusion of the disabled subject and in fact dependedthe twentieth century, the disabled subject is too easilybetween able-bodied and disabled subjects. The potentially

George, Doran

2010-01-01T23:59:59.000Z

319

INTRODUCTION Cell fates along the dorsoventral axis of the Drosophila  

E-Print Network (OSTI)

from Boston University School of Law. Jerry E. Muntz Associate Director (609) 258-6320 jmuntz@princeton.edu Jerry joined the Office of Gift Planning in 2005. From 2002 to 2005, he was senior gift planning officer & Curley (now Torys LLP). Jerry is a graduate of Vanderbilt University and received his law degree from

320

Flexible pipe crawling device having articulated two axis coupling  

DOE Patents (OSTI)

An apparatus for moving through the linear and non-linear segments of piping systems. The apparatus comprises a front leg assembly, a rear leg assembly, a mechanism for extension and retraction of the front and rear leg assembles with respect to each other, such as an air cylinder, and a pivoting joint. One end of the flexible joint attaches to the front leg assembly and the other end to the air cylinder, which is also connected to the rear leg assembly. The air cylinder allows the front and rear leg assemblies to progress through a pipe in "inchworm" fashion, while the joint provides the flexibility necessary for the pipe crawler to negotiate non-linear piping segments. The flexible connecting joint is coupled with a spring-force suspension system that urges alignment of the front and rear leg assemblies with respect to each other. The joint and suspension system cooperate to provide a firm yet flexible connection between the front and rear leg assemblies to allow the pivoting of one with respect to the other while moving around a non-linear pipe segment, but restoring proper alignment coming out of the pipe bend.

Zollinger, William T. (Martinez, GA)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "left axis wti" 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

MIT Confidential 1 Title: Two-axis Optical MEMS Scanner  

E-Print Network (OSTI)

, microvision, displays, bar code recognition etc., where beam alignment, steering and scanning is needed. MEMS

Awtar, Shorya

322

Object Orientation Agnosia: A Failure to Find the Axis?  

Science Conference Proceedings (OSTI)

A dissociation between the ability to recognize misoriented objects and to determine their orientation has been reported in a small number of patients with vascular lesions. In this article, we describe a 57-year-old man with probable Alzheimer' s disease ...

Irina M. Harris; Justin A. Harris; Diana Caine

2001-08-01T23:59:59.000Z

323

Structural Design of a Horizontal-Axis Tidal Current Turbine...  

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

M.J. Lawson, and Y. Li Presented at the ASME 30 th International Conference on Ocean, Offshore, and Arctic Engineering Rotterdam, The Netherlands June 19-24, 2011 Conference Paper...

324

Optical scanning apparatus for indicia imprinted about a cylindrical axis  

DOE Patents (OSTI)

An optical scanner employed in a radioactive environment for reading indicia imprinted about a cylindrical surface of an article by means of an optical system including metallic reflective and mirror surfaces resistant to degradation and discoloration otherwise imparted to glass surfaces exposed to radiation.

Villarreal, Richard A. (Kennewick, WA)

1987-01-01T23:59:59.000Z

325

Study of Composite Materials Application for Horizontal Axis Wind ...  

Science Conference Proceedings (OSTI)

Since the specific velocity is directly related to the coefficient of power Cp of a wind rotor, this article presents a comparative study with different materials and...

326

Paradigm Shift in Control of the Spindle Axis  

Science Conference Proceedings (OSTI)

Such control schemes have demonstrated the ability to control process temperature. Traditional power control schemes produce a relatively noisy power signal,...

327

Assumptions to the Annual Energy Outlook 2013  

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

Energy Module Energy Module This page inTenTionally lefT blank 21 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2013 International Energy Module The LFMM International Energy Module (IEM) simulates the interaction between U.S. and global petroleum markets. It uses assumptions of economic growth and expectations of future U.S. and world crude-like liquids production and consumption to estimate the effects of changes in U.S. liquid fuels markets on the international petroleum market. For each year of the forecast, the LFMM IEM computes BRENT and WTI prices, provides a supply curve of world crude-like liquids, and generates a worldwide oil supply- demand balance with regional detail. The IEM also provides, for each year of the projection period, endogenous and

328

X-ray Inspection Systems  

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

in a 40 degree cone. OMX-161 source (left) with PerkinElmer RID detector (behind lead shield). A carbon composite sample is located on the 3-axis controlled stage in front of the...

329

Alameda Creek, Niles Canyon, Alameda County. bottom left  

E-Print Network (OSTI)

's College of Education, the Screven County School System and the Savannah River Challenge Program. The PDD most popular major ? What high schools send the most students to our campus ? How does Georgia Southern

330

MIT Plasma Science & Fusion left: research>alctor>meetings scheduled  

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

Plasma Science and Fusion Center Massachusetts Institute of Technology Upcoming Meetings Workshops, conferences, meetings will be announced on this page as information becomes...

331

Six virtual inches to the left: The problem with IPng  

SciTech Connect

This memo describes an Internet information track protocol for the Internet community. It proposes that a locator address (TA) be assigned to Transmission Control Protocol (TCP). The purpose of this TA is to uniquely identify an Internet node without specifing any routing information. This new version of TCP would contain support for high bandwidth-delay networks. Support for multiple network layer (Internet Protocol) protocols is also possible with this new TCP. Distribution of this document is unlimited. This RFC suggests that a new version of TCP be developed (TCPv11) and deployed. This version of TCP would contain a globally unique transport protocol address (TA). Assiging an address to TCP would allow for the support of multiple network layer protocols (IPng`s). The Ta would identify the location of an Internet node. The IPng layer would provide routing information to the Internet. Seperating the location and routing functions will greatly increase the versitily of the Internet.

Carlson, R. [Argonne National Lab., IL (United States); Ficarella, D. [Motorola (United States)

1994-05-01T23:59:59.000Z

332

Hailstorms in Switzerland: Left Movers, Right Movers, and False Hooks  

Science Conference Proceedings (OSTI)

In the central region of Switzerland, lying between the Jura Mountains to the north and the Alps to the south, severe hailstorms are a common summertime phenomenon. Eight years of data on these hailstorms show that they are nearly equally divided ...

R. A. Houze Jr.; W. Schmid; R. G. Fovell; H-H. Schiesser

1993-12-01T23:59:59.000Z

333

A Tissue-Level Electromechanical Model of the Left Ventricle ...  

Science Conference Proceedings (OSTI)

EA are stochastic search methods inspired from the natural selection process. ..... Ten Tusscher KH, Noble D, Noble PJ, Panfilov AV (2004) A model for human...

334

LHC-scale left-right symmetry and unification  

E-Print Network (OSTI)

We construct a comprehensive list of non-supersymmetric standard model extensions with a low-scale LR-symmetric intermediate stage that may be obtained as simple low-energy effective theories within a class of renormalizable $SO(10)$ GUTs. Unlike the traditional "minimal" LR models many of our example settings support a perfect gauge coupling unification even if the LR scale is in the LHC domain at a price of only (a few copies of) one or two types of extra fields pulled down to the TeV-scale ballpark. We discuss the main aspects of a potentially realistic model building conforming the basic constraints from the quark and lepton sector flavour structure, proton decay limits, etc. We pay a special attention to the theoretical uncertainties related to the limited information about the underlying unified framework in the bottom-up approach, in particular, to their role in the possible extraction of the LR-breaking scale. We observe a general tendency for the models without new coloured states in the TeV domain to be on the verge of incompatibility with the proton stability constraints.

Carolina Arbelez; Martin Hirsch; Michal Malinsk; Jorge C. Romo

2013-11-13T23:59:59.000Z

335

THIS PAGE INTENTIONALLY LEFT BLANK - U.S. Energy ...  

U.S. Energy Information Administration (EIA)

Annual Electric Generator Report, asks respondents to ... March 19801982: FERC, Form FPC-5, "Electric Utility Company Monthly Statement." 1983: ...

336

Sharp Recanalization for Chronic Left Iliac Vein Occlusion  

Science Conference Proceedings (OSTI)

Endovascular treatment has emerged as a first-line treatment for venous occlusions, but is sometimes challenging with conventional approaches. This article describes a helpful technique using a Roesch-Uchida needle to cross a chronic occlusion of the iliac vein when conventional techniques have failed.

Ito, Nobutake, E-mail: nobutake@rad.med.keio.ac.jp; Isfort, Peter; Penzkofer, Tobias [RWTH Aachen University, Department of Diagnostic and Interventional Radiology, University Hospital (Germany); Grommes, Jochen; Greiner, Andreas [RWTH Aachen University, Department of Vascular Surgery, University Hospital (Germany); Mahnken, Andreas [RWTH Aachen University, Department of Diagnostic and Interventional Radiology, University Hospital (Germany)

2012-08-15T23:59:59.000Z

337

[Page Intentionally Left Blank] Life Cycle Greenhouse Gas Emissions from  

E-Print Network (OSTI)

is implemented in the plant. Keywords: Energy, Biofuels, Alternative fuels, Diesel, Fisher ­ Tropsch is performed using absorption in ethanolamines and PSA. Once the syngas is prepared the Fischer - Tropsch) technologies based on Fischer-Tropsch synthesis (Wilhelm et al., 2001) Fischer-Tropsch liquids can be refined

Reuter, Martin

338

THIS PAGE INTENTIONALLY LEFT BLANK - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Report, for plants with generating capacity exceeding 10 megawatts, and FERC, Form FPC-12C, Industrial Electric Generating Capacity, for all other ...

339

Journal of Differential Equations 171, 173 202 (2001) Symbolic Dynamics for the Henon Heiles Hamiltonian  

E-Print Network (OSTI)

by the search for additional conservation laws in certain galactic potentials admitting an axis of symmetry. the sets Nle :=Nl & |N| and Nre :=Nr & |N| are two nonadjacent edges of |N|. 187HENON HEILES HAMILTONIANS #12;We call |N|, Nl , Nr , Nle , and Nre the support, the left side, the right side, the left edge

Zgliczynski, Piotr

340

2012 Brief: Coal and mid-continent crude oil prices ...  

U.S. Energy Information Administration (EIA)

Coal and mid-continent crude oil (WTI) led energy commodity price declines in 2012. Natural gas was the only key energy commodity with a significant ...

Note: This page contains sample records for the topic "left axis wti" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


341

Microsoft Word - Summer 2006 Motor Gasoline Prices.doc  

Gasoline and Diesel Fuel Update (EIA)

gasoline prices can be broken down into the following three basic elements: 1. Crude oil costs - the West Texas Intermediate (WTI) crude oil spot price at Cushing, Oklahoma,...

342

University of Lethbridge's Participation in DUC-2007 Main ...  

Science Conference Proceedings (OSTI)

... to capture the dependency relations between the text segments and spot the concepts ... a topic term in the topic signature, and wti means weight of ...

2007-06-21T23:59:59.000Z

343

STEO Supplement: Why are oil prices so high?  

U.S. Energy Information Administration (EIA)

Energy Information Administration/Short Term Energy Outlook 1 STEO Supplement: Why are oil prices so high? During most of the 1990s, the West Texas Intermediate (WTI ...

344

Crude oils have different quality characteristics - Today in ...  

U.S. Energy Information Administration (EIA)

WTI = West Texas Intermediate; LLS = Louisiana Light Sweet; FSU = Former Soviet Union; UAE = United Arab Emirates. Republished: June 26, 2013: Map was corrected.

345

Spot crude prices near 12-month high; natural gas and power prices ...  

U.S. Energy Information Administration (EIA)

Note: WTI represents West Texas Intermediate crude oil. Source: U.S. Energy Information Administration, based on Thomson Reuters and SNL Energy. ...

346

EIA - Analysis of Natural Gas Prices  

U.S. Energy Information Administration (EIA)

The analysis focuses on natural gas end-use consumption trends, natural gas prices, ... during the year. Categories: Prices ... of 20 percent in the WTI leads to ...

347

Summary Short-Term Petroleum and Natural Gas Outlook  

U.S. Energy Information Administration (EIA)

Table of Contents. Summary Short-Term Petroleum. and Natural Gas Outlook. WTI Crude Oil Price: Base Case and 95% Confidence Interval. Real and Nominal Crude Oil Prices

348

ARE Update Volume 11, Number 5  

E-Print Network (OSTI)

between WTI and Brent crude oil prices. Brent crude isand Brent prices come back together. Second, almost all of the West Coast crude oil

de Wit, Joeri; Smith, Aaron; Kovacs, Kent; Simon, Leo K.; Stratton, Susan

2008-01-01T23:59:59.000Z

349

Short-Term Energy Outlook - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Natural gas working inventories on December 27 totaled 2.97 trillion cubic feet ... d U.S. Residential average. WTI Crude Oil a (dollars per barrel) ...

350

April 8, 2008 Release - Energy Information Administration  

U.S. Energy Information Administration (EIA)

The forecasts were generated by simulation of the Short-Term Integrated Forecasting System. a Spot Price of West Texas Intermediate (WTI) crude oil.

351

Global Oil Geopolitics - Energy Information Administration  

U.S. Energy Information Administration (EIA)

1970 1975 1980 1985 1990 1995 2000 2005 2010 imported refiner acquisition cost of crude oil WTI crude ... World Crude Oil Supply and Demand Balance 14

352

EIA - Annual Energy Outlook 2013 Early Release  

U.S. Energy Information Administration (EIA)

AEO2013 also presents the average West Texas Intermediate (WTI) spot price of light, low-sulfur crude oil delivered in Cushing, Oklahoma, ...

353

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)

354

Microsoft Word - kiliandiscussion.doc  

Gasoline and Diesel Fuel Update (EIA)

Physical Market Conditions, Paper Market Physical Market Conditions, Paper Market Activity and the WTI-Brent Spread Discussion by: Lutz Kilian University of Michigan Crude Oil is Not Perfectly Homogeneous ● Differences in: - Composition - Location ● Traditional approach: Use of Benchmarks (WTI, Brent) ● What explains the growing spread of Brent over WTI crude oil? ● Is the WTI price unusually low or the Brent price unusually high? 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 0 20 40 60 80 100 120 140 U.S. Real RAC for Crude Oil Imports July 2008 Dollars 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 -30 -20 -10 0 10 20 30 Spread Over U.S. RAC for Crude Oil Imports Percent WTI Brent Source: Baumeister and Kilian (2012) Candidate Explanations ● Regional supply shocks: Libyan supply disruption (temporary)

355

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

356

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)

357

Content-Based Off-Axis Illumination for Direct-to-Digital Holography  

PRICE, JEFFERY R Engineering Science & Technology Div Licensing Contact SPEIGHT II, MELVIN D UT-Battelle, LLC Oak Ridge National Laboratory

358

Reliability and Lifetime Testing of the DARHT Second Axis Induction Cells  

E-Print Network (OSTI)

pulse duration requirement. The higher voltages were definedrequirement of the cells has also been achieved. Without any scaling for increased voltage,

Waldron, W.L.; Nielsen, K.E.; Spence, P.W.

2005-01-01T23:59:59.000Z

359

Growth of Thick, On-Axis SiC Epitaxial Layers by High Temperature ...  

Science Conference Proceedings (OSTI)

... Layers by High Temperature Halide CVD for High Voltage Power Devices ... rate, high temperature process ideally suited for thick epitaxial requirements.

360

Commissioning of the Off-Axis Neutral Beamline on the DIII-D Tokamak  

E-Print Network (OSTI)

Bull. Am. Phys. Soc. 56, 300 (2011)53rd American Physical Society Annual Meeting of Division of Plasma Physics Salt Lake City Utah, US, 2011999619005

Scoville, J.T.

2011-08-04T23:59:59.000Z

Note: This page contains sample records for the topic "left axis wti" 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

Design and construction of vertical axis wind turbines using dual-layer vacuum-forming  

E-Print Network (OSTI)

How does one visualize wind? Is it the way trees bend in a strong gust or the way smoke is carried in a breeze? What if wind could be visualized using design, technology, and light? This thesis documents the design of a ...

Carper, Christopher T

2010-01-01T23:59:59.000Z

362

Measurements of television interference caused by a vertical-axis wind machine. Final subcontract report  

DOE Green Energy (OSTI)

The electromagnetic interference to television reception caused by the 17 m Darreius at Albuquerque, NM, has been studied by carrying out measurements at a number of sites in the vicinity of the VAWT. The rf sources used were the commercial vhf and uhf TV signals available in the area. Ambient field-strength measurements showed that the signals on all TV channels except one were strong, and provided good reception at all test sites. With the antenna (properly) oriented for maximum direct signal, unacceptable interference was observed on some channels at sites out to 33 m from the WT in the forward and backward regions. With the antenna beam directed at the WT, interference varying from slight to violent were observed at all sites on some or all TV channels. A simple theoretical model has been developed for analyzing the TVI produced by a VAWT like the Darrieus. Using the model in conjunction with measured data, an approximate expression for the equivalent scattering area A of the Darrieus has been developed. It is found that A is wavelength (lambda) dependent and varies as lambda/sup 1/2/.

Sengupta, D L; Senior, T B.A.; Ferris, J E

1983-01-01T23:59:59.000Z

363

Design and development of a marine current energy conversion system using hybrid vertical axis turbine.  

E-Print Network (OSTI)

??The Ocean Network Seafloor Instrumentation (ONSFI) Project, which commenced in 2007, is a five year multidisciplinary R&D project to design, fabricate and validate a proof-of-concept (more)

Alam, MD. Jahangir, 1984-

2009-01-01T23:59:59.000Z

364

BSA 10-14: Two-Axis Sagittal-Focusing Monochromator  

Brookhaven National Laboratory Building 490C P.O. Box 5000 Upton, New York 11973-5000. Have Questions? For more information about this technology, contact Poornima ...

365

DEVELOPMENT OF OPTIMUM DESIGN CONFIGURATION AND PERFORMANCE FOR VERTICAL AXIS WIND TURBINE  

E-Print Network (OSTI)

report was prepared as a result of work sponsored by the California Energy Commission (Commission). It does not necessarily represent the views of the Commission, its employees, or the state of California. The Commission, the state of California, its employees, contractors, and subcontractors make no warranty, express or implied, and assume no legal liability for the information in this report; nor does any party represent that the use of this information will not infringe upon privately owned rights. This report has not been approved or disapproved by the Commission nor has the Commission passed upon the accuracy or adequacy of the information in this report. PREFACE The Public Interest Energy Research (PIER) Program supports public interest energy research and development that will help improve the quality of life in California by bringing environmentally safe, affordable and reliable energy services and products to the marketplace. The PIER Program, managed by the California Energy Commission (Commission), annually awards up to $62 million of which $2 million/year is allocated to the Energy Innovation Small Grant (EISG) Program for grants. The EISG Program is administered by the San Diego State

Hamid R. Rahai; Eisg Awardee

2001-01-01T23:59:59.000Z

366

ERRATUM Energy exchange in an array of vertical-axis wind turbines  

E-Print Network (OSTI)

The calculation of the planform kinetic energy flux in this paper contains an error. The equation stated in the manuscript, Pvert ???Aplanu , is correct. However, a typographical error in the data processing code had the effect of calculating the planform kinetic energy flux using u 2 instead of u. This error caused a quantitative change in the planform kinetic energy flux as can be seen in the revised version of Figure 7. Figure 7. Contours of the power transport due to the planform kinetic energy flux along the centre of the turbine array. The three turbine pairs are indicated as vertical bars. Upon correction, the planform kinetic energy flux is lower than originally stated. In the region in front of the turbine array, it is 2.2 W/m 2 instead of 17 W/m 2. The average planform kinetic energy flux into the turbine array from 2 D downwind of the second turbine pair to 7.5 D downwind of the third sensor pair is 3.4 W/m 2 for the highest sensor position and 0.03 W/m 2 for the lowest sensor position; values of 22 W/m 2 and 0.4 W/m 2, respectively, were stated in the paper. The correction leads to a planform kinetic energy flux of 316 W per turbine pair which is approximately one-third of the power that is extracted by the turbine pair. Furthermore, the corrected results lead to the conclusion that the Frandsen formula gives the better estimate of the planform kinetic energy flux. The Frandsen estimate is off by 76 % while the Lettau is off by a factor of 8.5. While the conclusions of the manuscript are largely unchanged, the corrected data indicate that the planform kinetic energy flux is not sufficient to account for the total power

Matthias Kinzel; Quinn Mulligan; John O. Dabiri

2013-01-01T23:59:59.000Z

367

The Influence of Unsteady Wind on the Performance and Aerodynamics of Vertical Axis Wind Turbines.  

E-Print Network (OSTI)

??Interest in smallscale wind turbines as energy sources in the built environment has increased due to the desire of consumers in urban areas to reduce (more)

Danao, Louis Angelo

2012-01-01T23:59:59.000Z

368

Lidar Measurement of Turbulence Encountered by Horizontal-Axis Wind Turbines  

Science Conference Proceedings (OSTI)

We used a continuous-wave (CW) Doppler lidar to measure wind velocity turbulence from a moving frame of reference. By directing the lidar beam to trace the perimeters of vertical-plane disks about horizontal axes parallel to the mean wind ...

R. M. Hardesty; B. F. Weber

1987-03-01T23:59:59.000Z

369

Low Temperature Static and Dynamic Behavior of the Two-Dimensional Easy Axis Heisenberg Model  

E-Print Network (OSTI)

´isica, ICEx, Universidade Federal de Minas Gerais Belo Horizonte, CP 702, CEP 30123-970, MG, Brazil (August 10, are compared to numerical simulation data combining cluster-Monte Carlo algorithms and Spin Dynamics

Wysin, Gary

370

A study of pitch oscillation and roughness on airfoils used for horizontal axis wind turbines  

DOE Green Energy (OSTI)

Under subcontract XF-1-11009-3 the Ohio State University Aeronautical and Astronautical Research Laboratory (OSU/AARL) with the National Renewable Energy Laboratory (NREL) developed an extensive database of empirical aerodynamic data. These data will assist in the development of analytical models and in the design of new airfoils for wind turbines. To accomplish the main objective, airfoil models were designed, built and wind tunnel tested with and without model leading edge grit roughness (LEGR). LEGR simulates surface irregularities due to the accumulation of insect debris, ice, and/or the aging process. This report is a summary of project project activity for Phase III, which encompasses the time period from September 17, 1 993 to September 6, 1 994.

Gregorek, G.M.; Hoffmann, M.J.; Ramsay, R.R.; Janiszewska, J.M. [Ohio State Univ., Columbus, OH (United States)

1995-12-01T23:59:59.000Z

371

Wearable Conductive Fiber Sensors for Multi-Axis Human Joint Angle Measurements  

E-Print Network (OSTI)

Background: The practice of continuous, long-term monitoring of human joint motion is one that finds many applications, especially in the medical and rehabilitation fields. There is a lack of acceptable devices available ...

Gibbs, Peter T.

372

Design and analysis of wearable conductive fiber sensors for continuous multi-axis joint angle measurements  

E-Print Network (OSTI)

The practice of continuous, long-term monitoring of human joint motion is one that finds many applications, especially in the medical and rehabilitation fields. There is currently a lack of acceptable devices available to ...

Gibbs, Peter T., 1981-

2005-01-01T23:59:59.000Z

373

Quality Enhancement and Nerve Fibre Layer Artefacts Removal in Retina Fundus Images by Off Axis Imaging  

SciTech Connect

Retinal fundus images acquired with non-mydriatic digital fundus cameras are a versatile tool for the diagnosis of various retinal diseases. Because of the ease of use of newer camera models and their relative low cost, these cameras are employed worldwide by retina specialists to diagnose diabetic retinopathy and other degenerative diseases. Even with relative ease of use, the images produced by these systems sometimes suffer from reflectance artefacts mainly due to the nerve fibre layer (NFL) or other camera lens related reflections. We propose a technique that employs multiple fundus images acquired from the same patient to obtain a single higher quality image without these reflectance artefacts. The removal of bright artefacts, and particularly of NFL reflectance, can have great benefits for the reduction of false positives in the detection of retinal lesions such as exudate, drusens and cotton wool spots by automatic systems or manual inspection. If enough redundant information is provided by the multiple images, this technique also compensates for a suboptimal illumination. The fundus images are acquired in straightforward but unorthodox manner, i.e. the stare point of the patient is changed between each shot but the camera is kept fixed. Between each shot, the apparent shape and position of all the retinal structures that do not exhibit isotropic reflectance (e.g. bright artefacts) change. This physical effect is exploited by our algorithm in order to extract the pixels belonging to the inner layers of the retina, hence obtaining a single artefacts-free image.

Giancardo, Luca [ORNL; Meriaudeau, Fabrice [ORNL; Karnowski, Thomas Paul [ORNL; Li, Yaquin [University of Tennessee, Knoxville (UTK); Tobin Jr, Kenneth William [ORNL; Chaum, Edward [University of Tennessee, Knoxville (UTK)

2011-01-01T23:59:59.000Z

374

Addendum to a proposal to NSF to sponsor a vertical-axis wind turbine research program  

SciTech Connect

Information is presented concerning the performance evaluation of a 15 foot-diameter test bed Darrieus rotor, Darrieus rotor wind tunnel tests, Savonius rotor wind tunnel tests, blade manufacturing techniques for 15 foot-diameter and 35 foot-diameter wind turbines, static and dynamic structural analysis, production prototype design of a 15 foot-diameter turbine, production prototype design of 35 foot-diameter turbine, and aerodynamic performance studies.

Blackwell, B.F.; Feltz, L.V.; Rightley, E.C.

1974-11-01T23:59:59.000Z

375

PTAX: the Polarized Triple-Axis Spectrometer at HFIR | ORNL Neutron...  

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

Specifications of the PTAX Instrument Beam Spectrum: Thermal Monochromators Unpolarized PG(002) Polarized (commissioning) Analyzers Unpolarized PG(002), Be(101), Be(002), Si(111)...

376

PTAX: the Polarized Triple-Axis Spectrometer at HFIR | ORNL Neutron...  

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

A good example is the study of famous "resonance" excitations in certain high temperature superconductors, thought to play a crucial role in electron pairing. In the unpolarized...

377

A two axis sensor positioning system to be mounted on the front of an AUV  

E-Print Network (OSTI)

The XAUV is an experimental autonomous underwater vehicle (AUV) intended to be used as a platform to test new cutting edge sensors and mapping algorithms associated with them, as well as control algorithms for the ultimate ...

Neal, Devin (Devin M.)

2007-01-01T23:59:59.000Z

378

Axis Measurements, Field Quality and Quench Performance of the First LHC Short Straight Sections  

E-Print Network (OSTI)

The series testing at 1.9 K of the 360 Short Straight Sections (SSS) for the Large Hadron Collider have started at CERN in September 2003. The SSS contain the lattice quadrupoles and correction magnets in a common cryostat. The lattice quadrupoles feature two collared coils with 56 mm bore assembled in a common yoke. The coils are wound in two-layers from 15.1mm wide NbTi cable, insulated with polyimide tape. The paper reviews the main test results performed in superfluid helium. The magnetic field and magnetic center position of the quadrupoles and associated correctors were measured with two independent systems, namely an automated scanner and a single stretched wire technique. The quench training, the field quality and the magnetic alignment measurements are presented and discussed in terms of the specifications and expected performances of these magnets in the LHC. We discuss in detail the field quality in terms of multipole errors measured at injection and nominal field and decomposed into geometric an...

Sanfilippo, S; Calvi, M; Chohan, V; Durante, M; Hagen, P; Pugnat, P; Smirnov, N; Schnizer, P; Sammut, N; Siemko, A; Simon, F; Stafiniak, A; Todesco, Ezio; Tortschanoff, Theodor; Walckiers, L; 10.1109/TASC.2005.849504

2005-01-01T23:59:59.000Z

379

Approach to the fatigue analysis of vertical-axis wind-turbine blades  

DOE Green Energy (OSTI)

A cursory analysis of the stress history of wind turbine blades indicates that a single stress level at each wind speed does not adequately describe the blade stress history. A statistical description is required. Blade stress data collected from the DOE/ALCOA Low Cost experimental turbines indicate that the Rayleigh probability density function adequately describes the distribution of vibratory stresses at each wind speed. The Rayleigh probability density function allows the distribution of vibratory stresses to be described by the RMS of the stress vs. time signal. With the RMS stress level described for all wind speeds, the complete stress history of the turbine blades is known. Miner's linear cumulative damage rule is used as a basis for summing the fatigue damage over all operating conditions. An analytical expression is derived to predict blade fatigue life.

Veers, P.S.

1981-09-01T23:59:59.000Z

380

Sandia Vertical-Axis Wind Turbine Program. Technical quarterly report, October--December 1975  

DOE Green Energy (OSTI)

Information is presented concerning: review of the status of general design efforts in the areas of aerodynamics, structures, systems analysis, and testing; summary of preliminary design details of the proposed 17-m turbine/60-kW generator system for power grid application; and structural analysis and operational test results for the existing 5-m turbine.

Banas, J.F.; Sullivan, W.N. (eds.)

1976-04-01T23:59:59.000Z

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


381

User's manual for the vertical axis wind turbine performance computer code darter  

DOE Green Energy (OSTI)

The computer code DARTER (DARrieus, Turbine, Elemental Reynolds number) is an aerodynamic performance/loads prediction scheme based upon the conservation of momentum principle. It is the latest evolution in a sequence which began with a model developed by Templin of NRC, Canada and progressed through the Sandia National Laboratories-developed SIMOSS (SSImple MOmentum, Single Streamtube) and DART (SARrieus Turbine) to DARTER.

Klimas, P. C.; French, R. E.

1980-05-01T23:59:59.000Z

382

Computer subroutine for estimating aerodynamic blade loads on Darrieus vertical axis wind turbines. [FORCE code  

DOE Green Energy (OSTI)

An important aspect of structural design of the Darrieus rotor is the determination of aerodynamic blade loads. This report describes a load generator which has been used at Sandia for quasi-static and dynamic rotor analyses. The generator is based on the single streamtube aerodynamic flow model and is constructed as a FORTRAN IV subroutine to facilitate its use in finite element structural models. Input and output characteristics of the subroutine are described and a complete listing is attached as an appendix.

Sullivan, W. N.; Leonard, T. M.

1980-11-01T23:59:59.000Z

383

Heat Transport in Off-Axis EC-Heated Discharges in DIII-D  

E-Print Network (OSTI)

Bull. Am. Phys. Soc. 54, 59 (2009)51st American Physical Society Annual Meeting of Division of Plasma Physics Atlanta Georgia, US, 2009999616630

Austin, M.E.

2009-08-24T23:59:59.000Z

384

Initial Off-axis Beam Experiments in DIII-D (A27335)  

E-Print Network (OSTI)

Proceedings Of 39th European Physical Society Conference On Plasma Physics, Stockholm, Sweden, 2012; Http://ocs.ciemat.es/epsicpp2012pap/html/author.html. P2.068.pdf39th EPS Conference on Controlled Fusion and Plasma Physics Stockholm, SE, 2012999619100

Van Zeeland, M.A.

2012-06-25T23:59:59.000Z

385

Rindler type acceleration in f(R) gravity  

E-Print Network (OSTI)

By choosing a fluid source in $f(R)$ gravity, defined by $f\\left(R\\right) =R-12a\\xi \\ln \\left\\ | R\\right\\ | $, where $a$ (=Rindler acceleration) and $\\xi $ are both constants, the field equations correctly yield the Rindler acceleration term in the metric. We identify domains in which the weak energy conditions (WEC) and the strong energy conditions (SEC) are satisfied.

S. Habib Mazharimousavi; M. Halilsoy

2013-02-11T23:59:59.000Z

386

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

24 (next release 2:00 p.m. on March 31) 24 (next release 2:00 p.m. on March 31) Both spot and futures prices were relatively unchanged for the week (Wednesday to Wednesday, March 16-23). Colder-than-normal temperatures were offset by high volumes of working gas in storage remaining with only 8 days left in the traditional heating season. The Henry Hub spot price increased 3 cents per MMBtu since last Wednesday, trading yesterday (Wednesday, March 23) for $7.11. On the NYMEX, the settlement price for the futures contract for April delivery at the Henry Hub fell $0.054 per MMBtu from last Wednesday's level to $7.138 per MMBtu at yesterday's close of trading. Working gas in underground storage was 1,290 Bcf as of Friday, March 18, which is 21.9 percent above the previous 5-year (2000-2004) average. The spot price for West Texas Intermediate (WTI) crude oil decreased $7.07 per barrel, or about 12 percent, on the week to $49.43 per barrel or $8.52 per MMBtu.

387

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

4 (next release 2:00 p.m. on March 31) 4 (next release 2:00 p.m. on March 31) Both spot and futures prices were relatively unchanged for the week (Wednesday to Wednesday, March 16-23). Colder-than-normal temperatures were offset by high volumes of working gas in storage remaining with only 8 days left in the traditional heating season. The Henry Hub spot price increased 3 cents per MMBtu since last Wednesday, trading yesterday (Wednesday, March 23) for $7.11. On the NYMEX, the settlement price for the futures contract for April delivery at the Henry Hub fell $0.054 per MMBtu from last Wednesday's level to $7.138 per MMBtu at yesterday's close of trading. Working gas in underground storage was 1,290 Bcf as of Friday, March 18, which is 21.9 percent above the previous 5-year (2000-2004) average. The spot price for West Texas Intermediate (WTI) crude

388

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

0 0 1 September 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 September 8, 2010 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged about $77 per barrel in August 2010, very close to the July average, but $3 per barrel lower than projected in last month's Outlook. WTI spot prices averaged almost $82 per barrel over the first 10 days of August but then fell by $9 per barrel over the next 2 weeks as the market reacted to a series of reports of a stumbling economic recovery. EIA has lowered its average fourth quarter 2010 WTI spot price forecast to $77 per barrel, compared with $81 in last month's Outlook. WTI spot prices are projected to

389

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

October 2010 October 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 October 13, 2010 Release Crude Oil Prices. WTI oil prices averaged $75 per barrel in September but rose above $80 at the end of the month and into early October. EIA has raised the average fourth- quarter 2010 forecasted WTI spot price to $79 per barrel compared with $77 per barrel in last monthʹs Outlook. WTI spot prices are projected to rise to $85 per barrel by the fourth quarter of next year. As has been the case for most of 2010, WTI futures traded with a notable lack of volatility during the third quarter of 2010 (Figure 1). However, prices did bounce in

390

Microsoft Word - MPUR_Sep2012_final.docx  

Gasoline and Diesel Fuel Update (EIA)

Market Prices and Uncertainty Report 1 Crude Oil Prices: Crude oil prices rose during the first half of August and were relatively constant during the second half of the month, remaining at the higher levels. The Brent and WTI crude oil benchmarks settled at $113.49 and $95.53 per barrel, respectively, on September 6, with Brent increasing by $7.53 per barrel and WTI increasing by $6.62 per barrel since August 1 (Figure 1). Both Brent and WTI have been in narrow trading ranges over the last few weeks, with settlement prices for Brent and WTI staying within $3 dollar per barrel ranges since August 17. The month of August began with hopes of stimulus from governments and central

391

Microsoft Word - MPUR_June2011_final.docx  

Gasoline and Diesel Fuel Update (EIA)

1 1 1 June 2011 Short-Term Energy Outlook Market Prices and Uncertainty Report 1 June 7, 2011 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged $103 per barrel in March, $110 per barrel in April, and $101 per barrel in May. The WTI crude oil price in the beginning of May was $113 per barrel, but by the end of the first week in May, WTI crude oil prices had fallen by nearly $16 per barrel to $97 per barrel (Figure 1 for equivalent futures movement). For the remainder of May, WTI prices fluctuated within a relatively narrow range of between $96 and $103 per barrel. EIA still expects oil markets to tighten as growing liquid

392

STEONOV2000Rev1  

Gasoline and Diesel Fuel Update (EIA)

November 2000 Overview Oil prices are defying gravity, remaining well above 30.00 per barrel (33.10 for WTI in October and similar levels for the first week of November). This...

393

Spot Distillate & Crude Oil Prices - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

WTI crude oil price rose about $17 per barrel or 40 cents per gallon from its low point in mid ... New York Harbor spot heating oil had risen about 42 cents ...

394

Natural Gas Weekly Update  

Annual Energy Outlook 2012 (EIA)

22 cents, or 4 percent, over the week, closing at 5.274 per MMBtu. The price of West Texas Intermediate (WTI) crude oil ended the week at 73.64 per barrel, or 12.70 per MMBtu,...

395

Microsoft Word - summer.doc  

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

about 6 cents less than the Henry Hub spot price for that day. The price for West Texas Intermediate (WTI) crude oil oscillated between 14.85 and 15.00 per barrel most days...

396

sf01 - Summer Fuel Table.xlsx  

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

by simulation of the Short-Term Integrated Forecasting System. a Spot Price of West Texas Intermediate (WTI) crude oil Year-over-year Change (percent) Table SF01. U.S. Motor...

397

Short-Term Energy Outlook - U.S. Energy Information Administration ...  

U.S. Energy Information Administration (EIA)

a West Texas Intermediate. b Average regular pump price. c On-highway retail. d U.S. Residential average. WTI Crude Oil a (dollars per barrel) 94.86 : 94.12 : 94.65 :

398

Ohio incinerator given the go-ahead  

SciTech Connect

A federal judge has denied a request for an injunction against the startup of the long-stalled Waste Technologies Industries (WTI) commercial hazardous waste incinerator in East Liverpool, OH. The $140-million plant, owned by a US subsidiary of Swiss engineering group Von Roll Ltd. (Zuerich), will go through a startup stage and a seven-day trial burn during the next two months, according to WTI. In testimony in federal court in Huntington, WV, WTI had said it was losing $115,000/day in fixed costs because of the plant's startup delay. The company also said that long-term contracts with Chemical Waste Management (CWM; Oak Brook, IL), Du Pont (Wilmington, DE), and BASF Corp. (Parsippany, NJ) to use plant services could be jeopardized by the delay. WTI is believed to have 10-year service contracts with the three companies and also will use CWM to dispose of the ash from the incinerator.

Kemezis, P.

1992-11-25T23:59:59.000Z

399

Natural Gas Weekly Update, Printer-Friendly Version  

Annual Energy Outlook 2012 (EIA)

April 20, 2007, natural gas in storage was 1,564 Bcf, which is 17.5 percent above the 5-year average. The spot price for West Texas Intermediate (WTI) crude oil was 65.33 per...

400

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

20). Natural gas in storage was 2,381 Bcf as of July 22, which is 9 percent above the 5-year average. The spot price for West Texas Intermediate (WTI) crude oil rose 2.39 per...

Note: This page contains sample records for the topic "left axis wti" 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

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

gas in storage as of Friday, June 15 was 2,344 Bcf, which is 18.4 percent above the 5-year average. The spot price for West Texas Intermediate (WTI) crude oil increased 2.33...

402

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

25. Natural gas in storage was 2,763 Bcf as of July 20, which is 16.1 percent above the 5-year average. The spot price for West Texas Intermediate (WTI) crude oil rose 0.71 per...

403

Natural Gas Weekly Update  

Annual Energy Outlook 2012 (EIA)

as of Friday, November 5, which is about 8.7 percent above the 5-year average. The spot price for West Texas Intermediate (WTI) crude oil decreased 2.20 per barrel or 4.4...

404

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

during the second week of February, but stocks remain over 90 percent higher than last year at this time. The spot price of West Texas Intermediate (WTI) declined 0.55 to end...

405

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

many of the southern states.(See Temperature Map) (See Deviation from Normal Temperatures Map). The price of West Texas Intermediate (WTI) crude oil traded in a relatively tight...

406

Natural Gas Weekly Update, Printer-Friendly Version  

Annual Energy Outlook 2012 (EIA)

per MMBtu, as oil markets also reacted to Hurricane Claudette's limited impact on infrastructure and production. For the week, WTI showed a modest gain of 0.33 per barrel (0.03...

407

Propane Prices Follow Crude Oil  

Gasoline and Diesel Fuel Update (EIA)

of the first signals in deciphering what is happening in the market. This chart shows propane prices (both spot and retail) as well as WTI. As you can see, most prices track the...

408

Microsoft Word - Price Uncertainty Supplement.doc  

Annual Energy Outlook 2012 (EIA)

0 1 August 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 August 10, 2010 Release WTI crude oil spot prices averaged 76.32 per barrel in July...

409

HALF EMPTY As Men Surge Back into Computing, Women are Left Behind  

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

Jobs in computing Jobs in computing 1 have been a ray of light in a gloomy economy. Unemployment in the field stands at only 3.4 percent, 2 and the number of computing jobs is expected to grow more than 20 percent by 2020. 3 Many young people seem to have taken notice. After declining steeply in the mid-to-late 2000's, the number of computing degrees and certificates awarded in the U.S. has risen swiftly and almost regained the peak it attained in 2003. Is this trend a sign that the nation is tackling its shortage of talent in computer science, as some commentators have claimed? 4 Not so fast. Change the Equation's analysis of recent data on degrees and certificates in computing reveals a far more troubling picture: 5 men have surged back into computing in the past five

410

This page left blank intentionally Student Detox Conveyances Comparison by Year  

E-Print Network (OSTI)

. PHYSICS LIBRARY 4220 Chamberlin Hall 1150 University Avenue, 608­262­9500 physics.library.wisc.edu WENDT LIBRARY 215 N. Randall Avenue, 608­262­3493 wendt.library.wisc.edu This is the primary library for engi

Wisconsin at Madison, University of

411

The Left and Right Context of a Word: Overlapping Chinese Syllable Word Segmentation with Minimal Context  

Science Conference Proceedings (OSTI)

Since a Chinese syllable can correspond to many characters (homophones), the syllable-to-character conversion task is quite challenging for Chinese phonetic input methods (CPIM). There are usually two stages in a CPIM: 1. segment the syllable sequence ... Keywords: Chinese phonetic input methods, syllable-to-word conversion

Mike Tian-Jian Jiang; Tsung-Hsien Lee; Wen-Lian Hsu

2013-03-01T23:59:59.000Z

412

Newspapers of the French Left in Provence and Bas-Languedoc during the First World War.  

E-Print Network (OSTI)

of morale Advertising percentages Advertising revenues Word/subject analyses Censorship, publications seized 'Consignes gen^rales' Orders for censorship Strikes and censorship Cost of newsprint Function of press control Structure of censorship commissions... industries centred around soap manufacturing, sugar, chemicals, and olive oil refineries. Metallurgy industries especially brought with them workers who spread advanced socialist ideals,18 and the heavy immigration in general after 1850 influenced...

Collins, Ross F.

413

Senior Vice President Enclosure document8 This page intentionally left blankMacroeconomic Impacts of LNG  

E-Print Network (OSTI)

I am transmitting with this letter a clean copy of NERAs report on the macroeconomic impacts of LNG exports from the United States that was contracted for by the Department of Energy. Sincerely, W. David Montgomery

Www. Nera. Com; Dear Mr. Smith; Robert Baron; Nera Economic Consulting; Ha D. Tuladhar; Nera Economic Consulting

2012-01-01T23:59:59.000Z

414

PREDICTION OF REMAINING LIFE OF POWER TRANSFORMERS BASED ON LEFT TRUNCATED AND RIGHT  

E-Print Network (OSTI)

, for the overall fleet of transformers. 1. Introduction. 1.1. Background. Electrical transmission is an important. The prediction of the remaining life can be based on historical lifetime information about the transformer the remaining life of the healthy individual transformers in their fleet and the rate at which

415

Dark matter and Higgs phenomenology predicted by left-right twin ...  

Science Conference Proceedings (OSTI)

May 6, 2010 ... prediction, the rates of Higgs boson productions at the LHC via gluon-gluon fusion, weak ... The resulting Higgs boson mass is naturally around.

416

Mark Kubiske (USFS, center) describes gas exchange data to George Hendrey (BNL, left) and  

E-Print Network (OSTI)

contributed information on users for the review. Biomass Harvest ­ 2002 Our second biomass harvest is being crew, headed by Wendy Jones (MTU), for a great job! Boom Lift We recently purchased a self

417

Evolution and Morphology of Two Splitting Thunderstorms with Dominant Left-Moving Members  

Science Conference Proceedings (OSTI)

During the late afternoon and early evening of 27 June 1989. Three splitting thunderstorms formed over Standing Rock Indian Reservation in the southern portion of the North Dakota Thunderstorm Project area. The first two storms are the subject of ...

Rodger A. Brown; Rebecca J. Meitn

1994-09-01T23:59:59.000Z

418

The state of the left-bank anchor reinforcement of the Chirkeiskaya hydrosystem  

Science Conference Proceedings (OSTI)

The state of reinforcement anchors after 30 years of service at the hydroelectric power plant is described, and tension variations in the bars placed in adits caused by high humidity, breaking of welds, seismic, etc. are analyzed.

Abakarov, A. R.; Durcheeva, V. N.; Mayorova, M. A

2004-11-15T23:59:59.000Z

419

Turkey Hill Dairy: Where Energy is Not Left Flapping in the Wind...  

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

erected in January 2011 on the Frey Farm landfill adjacent to Turkey Hill Dairy's ice cream and sweet iced tea plant in Lancaster County, Penn., are expected to produce 7.5...

420

Competition-regulation interface in telecommunications: What's left of the essential facility doctrine  

Science Conference Proceedings (OSTI)

The essential facility doctrine lies at the core of telecoms regulation since its very first steps in the United States and in the European Union. Later, the doctrine spread around the world and currently stands as a key pillar of the liberalization ... Keywords: Access policy, Broadband, Competition, Essential facilities, Next generation networks, Regulation, Telecommunications

Andrea Renda

2010-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "left axis wti" 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

MCO Customer Handbook PAGE LEFT INTENTIONALLY BLANK TO OUR CUSTOMERS: Acknowledgement MCO Customer Handbook  

E-Print Network (OSTI)

We hope the Mapping Customer Operations (MCO) Customer Assistance Handbook fits your needs as a handy reference tool to obtain the best possible support from DLA. We have made every effort to ensure the information contained is accurate and current; however we appreciate any and all corrections as well as your feedback. The MCO Customer Handbook is also available at our web site www.dscr.dla.mil/rmf. From there, follow the link to Customer Assistance Handbook. We would like to recognize the many contributors and supporters of this handbook, each of whom played an integral role in developing and maintaining this resource. We are grateful and hope their efforts provide you the best insight into the mapping supply chain process. Thank you!

unknown authors

2006-01-01T23:59:59.000Z

422

Visualization of Fiber Structure in the Left and Right Ventricle of a Human Heart  

E-Print Network (OSTI)

Right Ventricle of a Human Heart Damien Rohmer, ArkadiuszTitle: Fiber Structure in the Heart Subject Codes: 124, 104486-7483 Abstract The human heart is composed of a helical

Rohmer, Damien; Sitek, Arkadiusz; Gullberg, Grant T.

2006-01-01T23:59:59.000Z

423

This page has been left blank. SPOKEN DOCUMENT RETRIEVAL FOR TREC-9 AT CAMBRIDGE UNIVERSITY  

E-Print Network (OSTI)

of the compiler writer searching for good heuristics. Finally, our results show that ESP branch prediction edge 14 Succ. Exit LE -- the edge getting to the successor is a loop exit edge, NLE -- not a loop exit of determining what heuristics to use. In particular, the search for successful heuristics requires a significant

Cambridge, University of

424

Left: Facility employee assisting in the investigation shows front of motor control  

E-Print Network (OSTI)

/Tagout for Personal Safety LIR 402-860-02.1, Locking and Tagging Equipment, Machinery and Systems DOE-HDBK-1092

425

Radiological Habits Survey: Hunterston, 2007 This page has been intentionally left blank  

E-Print Network (OSTI)

..................................................................................................23 4.7 Internal exposure..... .................................................................15 Figure 2 The Hunterston terrestrial (outer ring) and direct radiation (inner ring) survey areas AQUATIC RADIATION PATHWAYS ...........................................................................21 4

426

Radiological Habits Survey: Torness, 2006 This page has been intentionally left blank  

E-Print Network (OSTI)

cover 25 5.3 Novel radiation pathways 25 5.4 Internal exposure 25 6. DIRECT RADIATION 27 6.1 Direct.5 Wildfowling 19 4.6 The use of seaweed as a fertiliser 19 4.7 Internal exposure 19 4.8 External exposure 22 4 ratios for use in dose assessments 13 4. AQUATIC RADIATION PATHWAYS 14 4.1 Aquatic survey area 14 4

427

Typically, hotel bathroom lights are left on between five to eight hours per occupied  

E-Print Network (OSTI)

, receptions, coffee breaks, ground transportation, and conference materials. You are responsible for all hotel costs. CONFERENCE HOTELS Crown Plaza Cabana 4290 El Camino Real Palo Alto, CA 94306 Do not call the hotel directly for reservations. All reservations will be handled through The DANI Group once your

428

Page intentionally left blank For her love, patience, strength, and support during  

E-Print Network (OSTI)

Netzwerkkomponenten (English Version)," Bundesamt für Energiewirtschaft Forschungsprogramm Elektrizität, 26 November

de Weck, Olivier L.

429

Errata Corrections as of October 25, 2011  

Gasoline and Diesel Fuel Update (EIA)

Corrections as of October 25, 2011 Corrections as of October 25, 2011 1. On Figure 4 of page 6, the axis labels were changed to reflect that the difference between HCES and Reference case natural gas prices is shown on the left-hand axis, and the difference between HCES and Reference case electricity prices is shown on the right-hand axis. 2. On Figure 7 of page 9, the axis label was corrected from 2009 dollars to 2005 dollars. 3. The following sentence was added to the Background section on page 1 in order to clarify that intra-utility credit trading was specified in Chairman Hall's request: "The HCES will apply to utilities in the aggregate; utilities may trade compliance credits with other utilities." 4. In summary tables B1 through B5, the units label for sulfur dioxide emissions, nitrogen oxide

430

High q_min Steady State Scenario Development Using Off-Axis Neutral Beam Injection on DIII-D  

E-Print Network (OSTI)

Bull. Am. Phys. Soc. 56, 97 (2011)53rd American Physical Society Annual Meeting of Division of Plasma Physics Salt Lake City Utah, US, 2011999618967

Holcomb, C.T.

2011-08-03T23:59:59.000Z

431

Design and fabrication of a low cost Darrieus vertical axis wing turbine system. Phase I. Technical report  

DOE Green Energy (OSTI)

The contract has two phases, a design phase and a fabrication and installation phase. Presented is the work completed in Phase I, the design phase. The Sandia 17 m was used as the background machine from which design information was drawn. By concentrating the modifications on an existing design, emphasis was focused on component cost reduction rather than selection of optimal configuration or operating modes. The resulting design is a stretched version of the Sandia 17 m preserving the same rotor diameter and many other good features, but in the meantime lighter in weight, larger in capacity, and anticipated to be more cost effective.

None,

1979-06-22T23:59:59.000Z

432

Using Near Detector Data to Make Far Detector Predictions in an On?Axis Long?Baseline Experiment  

Science Conference Proceedings (OSTI)

Various techniques have been developed in long?baseline neutrino oscillation experiments to leverage near detector data to form predictions for the far detector spectrum and backgrounds. I will review the techniques used in MINOS

L. Whitehead; The MINOS Collaboration

2011-01-01T23:59:59.000Z

433

Design and development of an automated three axis machine that prints images on top of the foam of certain beverages  

E-Print Network (OSTI)

The goal of this research was to design and develop a working alpha prototype of the flagship product for a local startup called Onlatte, Inc. OnLatte specializes in automated printing of images on top of the foam of ...

Richardson, Jeremy S. H

2009-01-01T23:59:59.000Z

434

On-Axis Homoepitaxial Growth of 4H-SiC PiN Structure for High ...  

Science Conference Proceedings (OSTI)

Symposium, Advanced Materials for Power Electronics, Power Conditioning, and Power Conversion ... Potential Ceramic Dielectrics for Air Force Applications.

435

Effects of blade configuration on flow distribution and power output of a zephyr vertical axis wind turbine.  

E-Print Network (OSTI)

??Worldwide interest in renewable energy systems has increased dramatically, due to environmental concerns like climate change and other factors. Wind power is a major source (more)

Ajedegba, John Oviemuno

2008-01-01T23:59:59.000Z

436

Analysis of 2-axis pencil beam sonar microbathymetric measurements of mine burial at the Martha's Vineyard Coastal Observatory  

E-Print Network (OSTI)

The changing state of warfare has driven the US Navy's area of operations closer to shore into littoral coastal waters. Mine Warfare has been proven as an extremely effective means of battlespace control in these waters. ...

Gotowka, Brendan Reed

2005-01-01T23:59:59.000Z

437

A fast-developing and low-cost characterization and test environment for a double axis resonating micromirror  

Science Conference Proceedings (OSTI)

Testing and characterization of micro-electro-mechanical systems (MEMS) and micro-opto-electro-mechanical systems (MOEMS) can be very challenging due to the multi-domain nature of these devices. Nowadays high volume, high-cost, and accurate measuring ... Keywords: Fast-developing, Low-cost characterization, MOEMS, Microelectromechanical systems (MEMS), Micromirror, Testing

Francesco Battini; Emilio Volpi; Eleonora Marchetti; Tommaso Cecchini; Francesco Sechi; Luca Fanucci; Ulrich Hofmann

2010-11-01T23:59:59.000Z

438

Design and fabrication of the MesoMill : a five-axis milling machine for meso-scaled parts  

E-Print Network (OSTI)

With the increased prevalence of meso-scaled products, new tools are being developed to bridge the gap between fabrication processes tailored for micrometer and millimeter sized features. Compared to its traditional ...

Werkmeister, Jaime Brooke, 1977-

2004-01-01T23:59:59.000Z

439

Optimization of a Savonius rotor vertical-axis wind turbine for use in water pumping systems in rural Honduras  

E-Print Network (OSTI)

The D-lab Honduras team designed and constructed a wind-powered water pump in rural Honduras during IAP 2007. Currently, the system does not work under its own power and water must be pumped by hand. This thesis seeks to ...

Zingman, Aron (Aron Olesen)

2007-01-01T23:59:59.000Z

440

Time on the Mountain: The Office of Strategic Services in Axis-Occupied Greece, 1943-1944.  

E-Print Network (OSTI)

??Using the wartime reports produced by various field agents of the Office of Strategic Services (OSS), this dissertation attempts to rebut the currently hegemonic notion (more)

Nalmpantis, Kyriakos

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "left axis wti" 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

The design of a multi-axis rotational amusement park ride coupled with architectural and thematic elements  

E-Print Network (OSTI)

The art of creating a successful theme park ride involves seamlessly fusing complex mechanical systems with elegant architecture. More importantly, it is the job of telling a story that serves as a foundation for designing ...

Brown, Joseph A. (Joseph Anthony)

2008-01-01T23:59:59.000Z

442

Ferroelectric precursor behavior in PbSc0.5Ta0.5O3 detected by field-induced resonant piezoelectric spectroscopy  

E-Print Network (OSTI)

and a ferroelectric transition at 261 K.21 Segments of the primary RUS and RPS spectra are shown in Figs. 4a and b, respectively. The y-axis should be amplitude, in volts, from the amplifier but the spectra have been trans- lated vertically in proportion... in Figs. 4c and d. Note that peaks located below 420 kHz, with the exception of the peak lo- 10 FIG. 4. a) RUS Right: b) RPS spectra of PbSc0.5Ta0.5O3 at high temperature. The left axis is the amplitude (in Volts) but the spectra have been offset...

Aktas, Oktay; Salje, Ekhard K. H.; Crossley, Sam; Lampronti, Giulio I.; Whatmore, Roger W.; Mathur, Neil D.; Carpenter, Michael D.

2013-11-25T23:59:59.000Z

443

Other facts  

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

West Texas Intermediate crude oil price West Texas Intermediate crude oil price and NYMEX 95% confidence intervals January 2007 - December 2008 Short-Term Energy Outlook 1 Historical WTI price and 95% NYMEX Confidence Interval, January 2007 $0 $50 $100 $150 $200 $250 $300 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 2 Historical WTI price and 95% NYMEX Confidence Interval, February 2007 $0 $50 $100 $150 $200 $250 $300 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 3 Historical WTI price and 95% NYMEX Confidence Interval, March 2007 $0 $50 $100 $150 $200 $250 $300 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 4 Historical WTI price and 95% NYMEX Confidence Interval, April 2007 $0 $50 $100 $150 $200 $250 $300 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 5 Historical WTI price and 95% NYMEX Confidence Interval, May 2007 $0 $50 $100 $150 $200 $250 $300

444

Photographs on front cover (clockwise, from upper left): (upper left) Visible mercury at contact between alluvium and slate bedrock, Sailor Flat Mine, Greenhorn Creek drainage, Nevada County, California; total length of ruler is  

E-Print Network (OSTI)

drainage, Nevada County, California. Photograph by M.P. Hunerlach. (center) Aerial view of central part.S. Geological Survey #12;U.S. Department of the Interior Gale A. Norton, Secretary U.S. Geological Survey Charles G. Groat, Director U.S. Geological Survey, Reston, Virginia: 2005 For sale by U.S. Geological

445

Microsoft Word - MPUR_Aug2012_final.docx  

Gasoline and Diesel Fuel Update (EIA)

2 1 2 1 August 2012 Short-Term Energy Outlook Market Prices and Uncertainty Report 1 Crude Oil Prices: July crude oil futures prices showed the largest monthly rise in prices since February of this year. The Brent and WTI crude oil benchmarks settled at $105.90 and $87.13 per barrel, respectively, on August 2, with Brent increasing $8.56 per barrel and WTI increasing by $3.38 per barrel since July 2 (Figure 1). Brent crude oil prices are currently just below the level that they ended the 2011 year at while WTI is $12 below its settle price on December 30, 2011. Positive news for economic growth and several supply side factors contributed to higher

446

September 2012 Short-Term Energy Outlook  

Gasoline and Diesel Fuel Update (EIA)

Highlights  Brent crude oil spot prices have increased at a relatively steady pace from their 2012 low of $89 per barrel on June 25 to their recent high of $117 per barrel on August 23 because of the seasonal tightening of oil markets and continuing unexpected production outages. EIA expects Brent crude oil prices to fall from recent highs over the rest of 2012, averaging $111 per barrel over the last 4 months of 2012 and $103 per barrel in 2013. West Texas Intermediate (WTI) crude oil spot prices rose by a more modest $17 per barrel between June 25 and August 23, as the WTI discount to Brent crude oil widened from $10 per barrel to $22 per barrel. EIA expects WTI spot prices to average

447

U.S. Energy Information Administration (EIA) - Source  

Gasoline and Diesel Fuel Update (EIA)

Prices from Market Trends Prices from Market Trends Range of oil price cases represents uncertainty in world oil prices figure data In AEO2013, the Brent crude oil price is tracked as the main benchmark for world oil prices. The West Texas Intermediate (WTI) crude oil price has recently been discounted relative to other world benchmark crude prices. The recent growth in U.S. mid-continental oil production has exceeded the capacity of the oil transportation infrastructure out of Cushing, Oklahoma, the market center for WTI prices. The U.S. Energy Information Administration (EIA) expects the WTI price to approach levels near the Brent price as new oil pipeline capacity is added and begins operation. Future oil prices are uncertain. EIA develops three oil price cases-Reference, High, and Low-to examine how alternative price paths

448

U.S. Energy Information Administration (EIA) - Source  

Gasoline and Diesel Fuel Update (EIA)

Prices from Market Trends Prices from Market Trends Range of oil price cases represents uncertainty in world oil prices figure data In AEO2013, the Brent crude oil price is tracked as the main benchmark for world oil prices. The West Texas Intermediate (WTI) crude oil price has recently been discounted relative to other world benchmark crude prices. The recent growth in U.S. mid-continental oil production has exceeded the capacity of the oil transportation infrastructure out of Cushing, Oklahoma, the market center for WTI prices. The U.S. Energy Information Administration (EIA) expects the WTI price to approach levels near the Brent price as new oil pipeline capacity is added and begins operation. Future oil prices are uncertain. EIA develops three oil price cases-Reference, High, and Low-to examine how alternative price paths

449

Microsoft Word - MPUR_Apr2011_final.docx  

Gasoline and Diesel Fuel Update (EIA)

11 11 1 April 2011 Short-Term Energy Outlook Market Prices and Uncertainty Report 1 April 12, 2011 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged $88.58 per barrel in February then rose to $108 per barrel by the end of March (Figure 1). Projected WTI prices average $106 in 2011 and $114 per barrel in 2012, increases of $5 per barrel and $9 per barrel, respectively, from last month's Outlook. Growing volumes of Canadian crude oil imported into the United States contributed to record-high storage levels at Cushing, Oklahoma, and a price discount for WTI compared with similar quality world crudes such as Brent. Consequently, the projected U.S. refiner

450

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

March 2010 March 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 March 9, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged $76.39 per barrel in February 2010, almost $2 per barrel lower than the prior month's average and very near the $76 per barrel forecast in last month's Outlook. Last month, the WTI spot price reached a low of $71.15 on February 5 and peaked at $80.04 on February 22. EIA expects WTI prices to average above $80 per barrel this spring, rising to an average of about $82 per barrel by the end of the year and to $85 per barrel by the end of 2011 (West Texas Intermediate Crude Oil Price Chart).

451

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

Gasoline and Diesel Fuel Update (EIA)

Market Prices and Uncertainty Report Charts Market Prices and Uncertainty Report Charts Selected Charts Figure 1: Historical crude oil front month futures prices Figure 6: Probability of the November 2012 WTI contract expiring above different price levels Figure 7: Historical RBOB futures prices and crack spreads Figure 9: Probability of November 2012 retail gasoline exceeding different prices levels at expiration Figure 13: Historical front month U.S. natural gas prices Figure 15: Probability of the November 2012 Henry Hub contract expiring above price levels West Texas Intermediate (WTI) Crude Oil Price Confidence Intervals XLS West Texas Intermediate (WTI) Crude Oil Price Probabilities XLS Henry Hub Natural Gas Prices and Confidence Intervals XLS Henry Hub Natural Gas Price Probabilities XLS

452

Microsoft Word - Highlights.doc  

Gasoline and Diesel Fuel Update (EIA)

9 9 1 August 2009 Short-Term Energy Outlook August 11, 2009 Release Highlights Crude oil prices continue to be very volatile. The West Texas Intermediate (WTI) crude oil spot price fell from $71.47 on June 29 to $59.62 on July 14 and then increased to $71.59 by August 3. EIA expects the price of WTI crude oil to stay roughly flat at an average of $70 per barrel in the fourth quarter of 2009, an increase of about $27 compared with the average for the first quarter of the year. The WTI spot price is projected to rise slowly as economic conditions improve, to an average of about $72 per barrel in 2010. U.S average prices for regular-grade gasoline, which reached an earlier

453

Fig1.xls  

Gasoline and Diesel Fuel Update (EIA)

June 2010 June 2010 1 June 2010 Short-Term Energy Outlook June 8, 2010 Release Highlights  Crude oil prices fluctuated considerably last month, with the West Texas Intermediate (WTI) spot price ranging from a high of $86 per barrel on May 3 to a low of $65 on May 25, before ending the month at $74. According to some market analysts, uncertainty over the global economic recovery, particularly with respect to Europe's debt crisis and the tightening of credit by China, and liquidation of futures contracts contributed to the crude price decline. Moreover, WTI prices fell further than most other crudes because of record high inventories in Cushing, Oklahoma. EIA projects WTI crude oil spot prices

454

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

Outlook Price Uncertainty-January 2010 Outlook Price Uncertainty-January 2010 1 January 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 January 12, 2010 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged $74.50 per barrel in December 2009, about $3.50 per barrel lower than the prior month's average. The WTI spot price fell from $78 to $70 during the first 2 weeks of December, but colder-than-normal weather and U.S. crude oil and product inventory draws that exceeded the December 5-year averages helped push it back up to $79 per barrel by the end of the month. EIA forecasts that WTI spot prices will weaken over

455

Microsoft Word - Highlights.doc  

Gasoline and Diesel Fuel Update (EIA)

9 9 1 July 2009 Short-Term Energy Outlook July 7, 2009 Release Highlights After climbing for much of the year, the spot price of West Texas Intermediate (WTI) crude oil hovered around $70 per barrel through most of June. The price of WTI crude oil is expected to average near $70 per barrel through the second half of 2009, an increase of about $18 compared with the average for the first half of the year. The WTI spot price is projected to rise slowly as economic conditions improve, and to average about $72 per barrel in 2010. U.S average prices for regular-grade gasoline, which reached $2.69 per gallon in EIA's June 22 weekly survey, have fallen back slightly. Gasoline prices are

456

Notes from Financial and Physical Oil Market Linkages  

Gasoline and Diesel Fuel Update (EIA)

Workshop Summary Notes Workshop Summary Notes Financial and Physical Oil Market Linkages II September 27, 2012 Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585 Session 1: 9:15 a.m. - 10:45 a.m. Paper Title: Physical Market Conditions, Paper Market Activity, and the Brent-WTI Spread Presenter: Michel Robe, American University Discussant: Lutz Kilian, University of Michigan Presentation: [Presentation materials link in here] Paper 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

457

U.S. Energy Information Administration (EIA) - Sector  

Gasoline and Diesel Fuel Update (EIA)

International International Range of oil price cases represents uncertainty in world oil prices figure data In AEO2013, the Brent crude oil price is tracked as the main benchmark for world oil prices. The West Texas Intermediate (WTI) crude oil price has recently been discounted relative to other world benchmark crude prices. The recent growth in U.S. mid-continental oil production has exceeded the capacity of the oil transportation infrastructure out of Cushing, Oklahoma, the market center for WTI prices. The U.S. Energy Information Administration (EIA) expects the WTI price to approach levels near the Brent price as new oil pipeline capacity is added and begins operation. Future oil prices are uncertain. EIA develops three oil price cases-Reference, High, and Low-to examine how alternative price paths

458

U.S. Energy Information Administration (EIA) - Sector  

Gasoline and Diesel Fuel Update (EIA)

International International Range of oil price cases represents uncertainty in world oil prices figure data In AEO2013, the Brent crude oil price is tracked as the main benchmark for world oil prices. The West Texas Intermediate (WTI) crude oil price has recently been discounted relative to other world benchmark crude prices. The recent growth in U.S. mid-continental oil production has exceeded the capacity of the oil transportation infrastructure out of Cushing, Oklahoma, the market center for WTI prices. The U.S. Energy Information Administration (EIA) expects the WTI price to approach levels near the Brent price as new oil pipeline capacity is added and begins operation. Future oil prices are uncertain. EIA develops three oil price cases-Reference, High, and Low-to examine how alternative price paths

459

Microsoft Word - MPUR_Feb2011_final_rh.docx  

Gasoline and Diesel Fuel Update (EIA)

11 11 1 February 2011 Short-Term Energy Outlook Market Prices and Uncertainty Report 1 February 8, 2011 Release Crude Oil Prices. WTI crude oil spot prices averaged $89 per barrel in January, about the same as the December average, while over the same time period the estimated average cost of all crude oil to U.S. refineries increased by about $1 per barrel. Growing volumes of Canadian crude oil imported into the United States contributed to record-high storage levels at Cushing, Oklahoma, and a price discount for WTI compared with similar quality world crudes such as Brent crude oil. Projected WTI spot prices rise to an average of $95 per barrel in December 2011 and continue to increase to $99 per barrel by the

460

Microsoft Word - Price Uncertainty Supplement .docx  

Gasoline and Diesel Fuel Update (EIA)

1 1 1 January 2011 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 January 11, 2011 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged over $89 per barrel in December, about $5 per barrel higher than the November average. Expectations of higher oil demand, combined with unusually cold weather in both Europe and the U.S. Northeast, contributed to prices. EIA has raised the first quarter 2011 WTI spot price forecast by $8 per barrel from last monthʹs Outlook to $92 per barrel with a continuing rise to an average $99 per barrel in the fourth quarter of 2012. The projected annual average WTI price is $93 per barrel in 2011 and $98 per barrel in

Note: This page contains sample records for the topic "left axis wti" 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

Microsoft Word - Highlights.docx  

Gasoline and Diesel Fuel Update (EIA)

June 2012 1 June 2012 1 June 2012 Short-Term Energy Outlook Highlights  West Texas Intermediate (WTI) crude oil spot prices averaged more than $100 per barrel over the first 4 months of 2012. The WTI spot price then fell from $106 per barrel on May 1 to $83 per barrel on June 1, reflecting market concerns about world economic and oil demand growth. EIA projects the price of WTI crude oil to average about $95 per barrel over the second half of 2012 and the U.S. refiner acquisition cost of crude (RAC) to average $100 per barrel, both almost $11 per barrel lower than last month's Outlook. EIA expects crude oil prices to remain relatively flat in 2013. This forecast rests on the

462

Microsoft Word - feb10-Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

February 2010 February 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 February 12, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged $78.33 per barrel in January 2010, almost $4 per barrel higher than the prior month's average and matching the $78-per-barrel forecast in last month's Outlook. The WTI spot price peaked at $83.12 on January 6 and then fell to $72.85 on January 29 as the weather turned warm and concerns about the strength of world economic recovery increased. EIA forecasts that WTI spot prices will remain near current levels over the next few months, averaging $76 per barrel in February and March, before rising to about $82 per barrel in the late

463

December 2012 Short-Term Energy Outlook (STEO)  

Gasoline and Diesel Fuel Update (EIA)

(STEO) (STEO)  EIA expects that the Brent crude oil spot price will average $110 per barrel in the fourth quarter of 2012, while the West Texas Intermediate (WTI) crude oil spot price will average $89 per barrel. The Brent and WTI crude oil spot prices are forecast to average $104 per barrel and $88 per barrel, respectively, in 2013. The projected WTI discount to Brent crude oil, which averaged $23 per barrel in November 2012, falls to an average of $11 per barrel by the fourth quarter of 2013. This forecast rests on the assumption that U.S. real gross domestic product (GDP) grows by 2.1 percent in 2012 and 1.8 percent in 2013, while world

464

Summer Tables.xls  

Gasoline and Diesel Fuel Update (EIA)

8 8 1 September 2008 Short-Term Energy Outlook September 9, 2008 Release Highlights The monthly average price of West Texas Intermediate (WTI) crude oil decreased from over $133 per barrel in June and July to about $117 per barrel in August, reflecting expectations of a slowdown in world petroleum demand growth. WTI, which averaged $72 per barrel in 2007, is projected to average $116 per barrel in 2008. Projected stronger growth in world petroleum demand is expected to increase the annual average WTI price to $126 per barrel in 2009. The weekly price of regular-grade gasoline, which peaked at $4.11 per gallon on July 14, averaged $3.65 per gallon on September 8. Annual average retail

465

Benchmark West Texas Intermediate crude assayed  

Science Conference Proceedings (OSTI)

The paper gives an assay of West Texas Intermediate, one of the world's market crudes. The price of this crude, known as WTI, is followed by market analysts, investors, traders, and industry managers around the world. WTI price is used as a benchmark for pricing all other US crude oils. The 41[degree] API WTI posted prices is the price paid for the crude at the wellhead in West Texas and is the true benchmark on which other US crudes are priced. The spot price is the negotiated price for short-term trades of the crude. And the New York Mercantile Exchange, or Nymex, price is a futures price for barrels delivered at Cushing.

Rhodes, A.K.

1994-08-15T23:59:59.000Z

466

Microsoft Word - Price Uncertainty Supplement.doc  

Gasoline and Diesel Fuel Update (EIA)

0 0 1 July 2010 Short-Term Energy Outlook Energy Price Volatility and Forecast Uncertainty 1 July 7, 2010 Release Crude Oil Prices. WTI crude oil spot prices averaged $75.34 per barrel in June 2010 ($1.60 per barrel above the prior month's average), close to the $76 per barrel projected in the forecast in last month's Outlook. EIA projects WTI prices will average about $79 per barrel over the second half of this year and rise to $84 by the end of next year (West Texas Intermediate Crude Oil Price Chart). Energy price forecasts are highly uncertain, as history has shown (Energy Price Volatility and Forecast Uncertainty). WTI futures for September 2010 delivery for the

467

Microsoft Word - MPUR_Mar2011_final.docx  

Gasoline and Diesel Fuel Update (EIA)

March 2011 March 2011 1 March 2011 Short-Term Energy Outlook Market Prices and Uncertainty Report 1 March 8, 2011 Release Crude Oil Prices. West Texas Intermediate (WTI) crude oil spot prices averaged $88.58 per barrel in February, slightly lower than the January average, while over the same time period the estimated average cost of all crude oil to U.S. refineries increased by about $4.50 per barrel to $92.50. Growing volumes of Canadian crude oil imported into the United States contributed to record-high storage levels at Cushing, Oklahoma, and a price discount for WTI compared with similar quality world crudes such as Brent crude oil. Projected WTI spot prices rise to an average of $105 per barrel in December

468

Microsoft Word - Highlights.docx  

Gasoline and Diesel Fuel Update (EIA)

February 2012 February 2012 1 Independent Statistics & Analysis U.S. Energy Information Administration February 2012 Short-Term Energy Outlook February 7, 2012 Release Highlights  EIA expects the price of West Texas Intermediate (WTI) crude oil to average about $100 per barrel in 2012, almost $6 per barrel higher than the average price last year. Based on recent futures and options data, the market believes there is about a one-in-fifteen chance that the average WTI price in June 2012 will exceed $125 per barrel, and about a one-in-fifty chance that it would exceed $140 per barrel. For 2013, EIA expects WTI prices to continue to rise,

469

Small-Area Estimation based on Survey Data from a Left-Censored Fay-Herriot Model  

E-Print Network (OSTI)

Administration's monthly crude oil report is based on a survey (EIA-813, http://www.eia.doe.gov/oss/forms.html) in which respondent compa- nies that carry or store more than 1000 barrels of crude oil are required is the US Census Bureau's Small Area Income and Poverty Estimation (SAIPE) program, an ongoing effort

Maryland at College Park, University of

470

Coupled left-shift of Nav channels: modeling the Na+-loading and dysfunctional excitability of damaged axons  

Science Conference Proceedings (OSTI)

Injury to neural tissue renders voltage-gated Na+ (Nav) channels leaky. Even mild axonal trauma initiates Na+ -loading, leading to secondary Ca2+-loading and white matter degeneration. The nodal isoform is Nav1.6 ... Keywords: Arrhythmia, Diffuse axonal injury, Extracellular space, Hodgkin-Huxley, Myelinated, Na/K-ATPase, Neuropathic pain

Pierre-Alexandre Boucher; Bla Jos; Catherine E. Morris

2012-10-01T23:59:59.000Z

471

Effects of pacing site on global and regional left ventricular function in the setting of dyssynchronous heart failure  

E-Print Network (OSTI)

modeling of dyssynchronous heart failure: A case study.in the dyssynchronous canine heart. Annual Meeting of therelaxation. Am J Physiol Heart Circ Physiol 286: H640-647,

Howard, Elliot Jacob

2011-01-01T23:59:59.000Z

472

Bull. Soc. gol. Fr., 2008, no The Rio Bravo fault, a major late Oligocene left-lateral shear zone  

E-Print Network (OSTI)

splays classified by age (courtesy of PEMEX modified). Thin lines is gravimetric contouring of figure 7 des reservoirs pétroliers classés par âge (courtoisie de PEMEX, figure modifiée). Le contourage en base provided mainly by PEMEX. We have used both 2D and 3D seismic interpretations to built

Husson, Laurent

473

www.netl.doe.gov This page intentionally left blankPrepared by: Research and Development Solutions LLC  

E-Print Network (OSTI)

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 imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed therein do not necessarily state or reflect those of the United States Government

Jared Ciferno; James Murphy

2006-01-01T23:59:59.000Z

474

Few people were left unaffected by the soaring oil prices of summer 2008. Motorists were the hardest hit  

E-Print Network (OSTI)

engine operating at constant speed. Braking recharges the battery, which helps to reduce fuel costs and the electrolyte that ultimately destroys the battery. Plus, electric cars cost a lot. Despite these weaknesses, hy for their food as higher transport costs were passed on from the retailer to the consumer. Sincethen

Andelman, David

475

404-446-2560 | www.nerc.comThis Page is left Intentionally BlankNERCs Mission  

E-Print Network (OSTI)

The North American Electric Reliability Corporation (NERC) is an international regulatory authority established to evaluate reliability of the bulk power system in North America. NERC develops and enforces Reliability Standards; assesses adequacy annually via a ten?year forecast and winter and summer forecasts; monitors the bulk power system; and educates, trains, and certifies industry personnel. NERC is the electric reliability organization for North America, subject to oversight by the U.S. Federal Energy Regulatory Commission (FERC) and governmental authorities in Canada. 1 NERC assesses and reports on the reliability and adequacy of the North American bulk power system, which is divided into eight Regional areas, as shown on the map and table below. The users, owners, and operators of the bulk power system within these areas account for virtually all the electricity supplied in the U.S., Canada, and a portion of Baja California Norte, Mxico. NERC Regional Entities Note: The highlighted area between SPP RE and SERC denotes overlapping Regional area boundaries. For example, some load serving entities participate in one Region and their associated transmission owner/operators in another. FRCC Florida Reliability

North Tower

2011-01-01T23:59:59.000Z

476

The small white box left of the porch is the only outdoor evidence of the new GHP system  

E-Print Network (OSTI)

projects that are delivering maximum value and long-term savings to their facilities. The ORNL GHP team with Geothermal Heat Pumps If designed properly, GHPs save energy and cost less to maintain. A growing number their facilities, reduce energy and maintenance costs, and meet energy goals. The Department of Defense alone has

477

Microsoft Word - Highlights.docx  

Gasoline and Diesel Fuel Update (EIA)

11 11 1 Independent Statistics & Analysis U.S. Energy Information Administration April 2011 Short-Term Energy and Summer Fuels Outlook April 12, 2011 Release Highlights  West Texas Intermediate (WTI) crude oil spot prices averaged $89 per barrel in February and $103 per barrel in March. The WTI price has continued to rise in recent days, reaching $112 on April 8. Crude oil prices are currently at their highest level since 2008. EIA expects oil markets to continue to tighten over the next two years given expected robust growth in world oil demand and slow growth in supply from non-Organization of the Petroleum Exporting Countries

478

Microsoft Word - Highlights.doc  

Gasoline and Diesel Fuel Update (EIA)

7 7 1 ` September 2007 Short-Term Energy Outlook September 11, 2007 Release Highlights * Oil market fundamentals will likely remain tight reflecting continued production restraint by members of OPEC, rising consumption, moderate growth in non- OPEC supply, and falling inventories. Barring a slowdown in oil demand growth, continued high demand and low surplus capacity leave the market vulnerable to unexpected supply disruptions through 2008. * The price of West Texas Intermediate (WTI) crude oil dropped by about $2 per barrel in August from the record-high monthly average price of over $74 per barrel set in July. Tight world oil markets are expected to keep WTI prices around $71

479

Microsoft Word - Highlights.docx  

Gasoline and Diesel Fuel Update (EIA)

December 2011 December 2011 1 Independent Statistics & Analysis U.S. Energy Information Administration December 2011 Short-Term Energy Outlook December 6, 2011 Release Highlights  EIA expects the U.S. average refiner acquisition cost (RAC) of crude oil to increase slightly over the next year, averaging about $101 per barrel in 2011 and $102 in 2012. West Texas Intermediate (WTI) crude oil has been trading at a discount to RAC for most of 2011, contrary to the traditional relationship. The forecast WTI price discount relative to the RAC narrows from an average $11 per barrel in the third quarter of 2011 to $3 per barrel by the fourth quarter

480

Circulations, Bounded Weak Echo Regions, and Horizontal Vortices Observed within Long-Lake-Axis-ParallelLake-Effect Storms by the Doppler on Wheels  

Science Conference Proceedings (OSTI)

The eastern Great Lakes (Erie and Ontario) are often affected by intense lake-effect snowfalls. Lake-effect storms that form parallel to the major axes of these lakes can strongly impact communities by depositing more than 100 cm of snowfall in ...

Scott M. Steiger; Robert Schrom; Alfred Stamm; Daniel Ruth; Keith Jaszka; Timothy Kress; Brett Rathbun; Jeffrey Frame; Joshua Wurman; Karen Kosiba

2013-08-01T23:59:59.000Z

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


481

Tool fabrication system for micro/nano millingfunction analysis and design of a six-axis Wire EDM machine  

E-Print Network (OSTI)

fabrication system for micro/nano millingfunction analysisselected. Keywords Micro/nano milling . Wire EDM . FunctionJapan 1 Introduction Micro/nano machining is requisite by

Cheng, X.; Wang, Z. G.; Kobayashi, S.; Nakamoto, K.; Yamazaki, K.

2010-01-01T23:59:59.000Z

482

Midtemperature solar systems test facility predictions for thermal performance based on test data. Toltec two-axis tracking solar collector with 3M acrylic polyester film reflector surface  

DOE Green Energy (OSTI)

Thermal performance predictions based on test data are presented for the Toltec solar collector, with acrylic film reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-06-01T23:59:59.000Z

483

High resolution telescope including an array of elemental telescopes aligned along a common axis and supported on a space frame with a pivot at its geometric center  

DOE Patents (OSTI)

A large effective-aperture, low-cost optical telescope with diffraction-limited resolution enables ground-based observation of near-earth space objects. The telescope has a non-redundant, thinned-aperture array in a center-mount, single-structure space frame. It employes speckle interferometric imaging to achieve diffraction-limited resolution. The signal-to-noise ratio problem is mitigated by moving the wavelength of operation to the near-IR, and the image is sensed by a Silicon CCD. The steerable, single-structure array presents a constant pupil. The center-mount, radar-like mount enables low-earth orbit space objects to be tracked as well as increases stiffness of the space frame. In the preferred embodiment, the array has elemental telescopes with subaperture of 2.1 m in a circle-of-nine configuration. The telescope array has an effective aperture of 12 m which provides a diffraction-limited resolution of 0.02 arc seconds. Pathlength matching of the telescope array is maintained by a electro-optical system employing laser metrology. Speckle imaging relaxes pathlength matching tolerance by one order of magnitude as compared to phased arrays. Many features of the telescope contribute to substantial reduction in costs. These include eliminating the conventional protective dome and reducing on-site construction activities. The cost of the telescope scales with the first power of the aperture rather than its third power as in conventional telescopes.

Norbert, Massie A. (San Ramon, CA); Yale, Oster (Danville, CA)

1992-01-01T23:59:59.000Z

484

High resolution telescope including an array of elemental telescopes aligned along a common axis and supported on a space frame with a pivot at its geometric center  

DOE Patents (OSTI)

A large effective-aperture, low-cost optical telescope with diffraction-limited resolution enables ground-based observation of near-earth space objects. The telescope has a non-redundant, thinned-aperture array in a center-mount, single-structure space frame. It employes speckle interferometric imaging to achieve diffraction-limited resolution. The signal-to-noise ratio problem is mitigated by moving the wavelength of operation to the near-IR, and the image is sensed by a Silicon CCD. The steerable, single-structure array presents a constant pupil. The center-mount, radar-like mount enables low-earth orbit space objects to be tracked as well as increases stiffness of the space frame. In the preferred embodiment, the array has elemental telescopes with subaperture of 2.1 m in a circle-of-nine configuration. The telescope array has an effective aperture of 12 m which provides a diffraction-limited resolution of 0.02 arc seconds. Pathlength matching of the telescope array is maintained by a electro-optical system employing laser metrology. Speckle imaging relaxes pathlength matching tolerance by one order of magnitude as compared to phased arrays. Many features of the telescope contribute to substantial reduction in costs. These include eliminating the conventional protective dome and reducing on-site construction activities. The cost of the telescope scales with the first power of the aperture rather than its third power as in conventional telescopes. 15 figs.

Norbert, M.A.; Yale, O.

1992-04-28T23:59:59.000Z

485

On-Site Calibration for High Precision Measurements of Water Vapor Isotope Ratios Using Off-Axis Cavity-Enhanced Absorption Spectroscopy  

Science Conference Proceedings (OSTI)

Stable isotope ratio measurements of atmospheric water vapor (?18Ov and ?2Hv) are scarce relative to those in precipitation. This limitation is rapidly changing due to advances in absorption spectroscopy technology and the development of ...

Joshua Rambo; Chun-Ta Lai; James Farlin; Matt Schroeder; Ken Bible

2011-11-01T23:59:59.000Z

486

Tool fabrication system for micro/nano millingfunction analysis and design of a six-axis Wire EDM machine  

E-Print Network (OSTI)

system for micro/nano millingfunction analysis and designcan only be fabricated by milling operations instead ofprocesses with ultra-hard milling tools made of PCD or CBN.

Cheng, X.; Wang, Z. G.; Kobayashi, S.; Nakamoto, K.; Yamazaki, K.

2010-01-01T23:59:59.000Z

487

1 x N^2 wavelength-selective switch with two cross-scanning one-axis analog micromirror arrays in a 4-f optical system  

E-Print Network (OSTI)

of Electrical Engineering and Computer Sciences, andof Electrical Engineering and Computer Sciences, andProfessor of Electrical Engineering and Computer Sciences at

Tsai, J C; Huang, STY; Hah, D; Wu, Ming C

2006-01-01T23:59:59.000Z

488

ELM-like Events Excited by the Off-axis-fishbone Mode in the DIII-D Advanced Tokamak Regime (A27331)  

E-Print Network (OSTI)

Proceedings Of 39th European Physical Society Conference On Plasma Physics, Stockholm, Sweden, 2012; Http://ocs.ciemat.es/epsicpp2012pap/html/author.html. P2.03439th EPS Conference on Controlled Fusion and Plasma Physics Stockholm, SE, 2012999619097

Okabayashi, M.

2012-06-28T23:59:59.000Z

489

Spot Prices for Crude Oil and Petroleum Products  

U.S. Energy Information Administration (EIA)

Product by Area: May-13 Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 View History; Crude Oil : WTI - Cushing, Oklahoma: 94.51: 95.77: 104.67: 106.57: 106.29: 100.54: 1986-2013 ...

490

Table SF01. U.S. Motor Gasoline Summer Outlook  

U.S. Energy Information Administration (EIA)

Q2 Q3 Season Q2 Q3 Season Q2 Q3 Season Nominal Prices (dollars per gallon) WTI Crude Oil (Spot) a 2.22 2.20 2.21 2.22 2.20 2.21 -0.3 0.1 -0.1 Brent Crude oil Price ...

491

Multi-fractal Analysis of World Crude Oil Prices  

Science Conference Proceedings (OSTI)

In order to reveal the stylized facts of world crude oil prices, R/S (Rescaled Range Analysis) method is introduced in this paper. For illustration, WTI (West Texas Intermediate) and Brent daily crude oil prices are used in this paper. The calculated ...

Xiucheng Dong; Junchen Li; Jian Gao

2009-04-01T23:59:59.000Z

492

Microsoft Word - S07834_2011 Ann Rpt_ag comment revs  

Office of Legacy Management (LM)

Supplementary Time-Trend Sparkline Plots Supplementary Time-Trend Sparkline Plots This page intentionally left blank U.S. Department of Energy Annual Performance Report, Shiprock, New Mexico January 2012 Doc. No. S07834 Page A-1 Legend In these sparkline diagrams, red markers denote maximum (max) concentrations and green markers denote minima (min); black markers denote the most recent (current) March 2011 measurement. The x-axis is hidden but corresponds to the Feb-00 to Mar-11 date range noted above each plot. Vertical (y-) axis scales are automatic for each individual well, so magnitudes should not be compared across wells (instead refer to summary statistics). Floodplain Well 1089 Area: Ammonia (mg/L) Well ID Period: Feb-00 to Mar-11 Max

493

Semiclassical Interpretation of the Mass Asymmetry in Nuclear Fission  

E-Print Network (OSTI)

We give a semiclassical interpretation of the mass asymmetry in the fission of heavy nuclei. Using only a few classical periodic orbits and a cavity model for the nuclear mean field, we reproduce the onset of left-right asymmetric shapes at the fission isomer minimum and the correct topology of the deformation energy surface in the region of the outer fission barrier. We point at the correspondence of the single-particle quantum states responsible for the asymmetry with the leading classical orbits, both lying in similar equatorial planes perpendicular to the symmetry axis of the system.

M. Brack; S. M. Reimann; M. Sieber

1997-05-15T23:59:59.000Z

494

Wzeng's blog  

Open Energy Info (EERE)

en New Gapminder Visualizations en New Gapminder Visualizations Added! http://en.openei.org/community/blog/new-gapminder-visualizations-added  OpenEI now features some cool new Gapminder Visualizations for users to browse and discover interesting trends. This dynamic chart, also called a motion chart, allows users to view changing data over time with four different axis, all changeable with a click of the mouse.left; margin-right:5px; margin-left:5px" title="" />

495

Measuring Regional Changes in the Diastolic Deformation of the Left Ventricle of SHR Rats Using microPET Technology and Hyperelastic Warping  

E-Print Network (OSTI)

slice taken from (A) the template image data set and (B) themid- diastolic image data set (target) and the (end-diastolic image data set (target) used in the validation

VERESS, ALEXANDER I.

2008-01-01T23:59:59.000Z

496

Ministry of Water, Land and Air Protection Ecosystem Standards and Planning Biodiversity BranchThis page has been intentionally left blank ii Preface Preface  

E-Print Network (OSTI)

British Columbia is recognized globally for its exceptional wildlife, diversity of ecosystems, and rich natural resources. The Ministry of Water, Land and Air Protection (WLAP) works to maintain these valuable natural assets, which lie at the heart of many recreational and economic activities enjoyed by British Columbians in all regions of the province. The Ministry has responsibility for the protection and stewardship of British Columbias environment. To fulfil this responsibility, it develops policy and legislation, regulations, codes of practice, environmental contracts and covenants (legal agreements). It also monitors and reports on selected species and habitats, as well as acquires information on habitat and species health. It sets science- and results-based objectives and standards and provides best practices for activities that affect our environment. Together, clear goals and objectives, meaningful performance measures and science-based tools guide Ministry actions in improving environmental management. Regulatory frameworks allow headquarters and regional staff to

Instream Works

2004-01-01T23:59:59.000Z

497

recently read an important study that left me in awe of the knowledge demo-graphics of our planet. In Educating All Children: A Global Agenda, Joel Cohen  

E-Print Network (OSTI)

to thirteen hundred in 2000. During the same period Egypt and Saudi Arabia had a flat trajectory at nearly two to ingeniously measure time and create the solar calendar. Recently, French scientists reported yet another TV program watched by millions, the anchorman said we must find out "who changed the weather" (min

Greer, Julia R.

498

Zevenhoven & Kilpinen PARTICULATES 4.2.2004 5-33 Figure 5.33 Baghouse filter systems based on inside out (left)  

E-Print Network (OSTI)

those from fluidised bed combustion, or gasification (Scott and Carpenter, 1996). For temperatures below-44 Figure 5.44 Options for HTHP gasification fuel gas cleaning (picture from Mitchell, 1997) Figure 5.43 Typical HTHP gas cleaning system for gasification product gas (picture from ETSU, 1998) 5.11 High

Zevenhoven, Ron

499

Cover photos: (from top left, clockwise) A woman collects salted fish at a fishing village, Pante Raja Barat, Pante Raja subdistrict in Pidie, Indonesia  

E-Print Network (OSTI)

, Pante Raja Barat, Pante Raja subdistrict in Pidie, Indonesia (FAO/A. Berry). Fishermen in India who lost

Charles, Anthony

500

Microsoft Word - appendix i.doc  

Office of Legacy Management (LM)

I 2009 Program Directives This page intentionally left blank This page intentionally left blank This page intentionally left blank This page intentionally left blank This page...