National Library of Energy BETA

Sample records for tipping bucket rain

  1. Disdrometer and Tipping Bucket Rain Gauge Handbook

    SciTech Connect (OSTI)

    Bartholomew. MJ

    2009-12-01

    The Distromet disdrometer model RD-80 and NovaLynx tipping bucket rain gauge model 260-2500E-12 are two devices deployed a few meters apart to measure the character and amount of liquid precipitation. The main purpose of the disdrometer is to measure drop size distribution, which it does over 20 size classes from 0.3 mm to 5.4 mm. The data from both instruments can be used to determine rain rate. The disdrometer results can also be used to infer several properties including drop number density, radar reflectivity, liquid water content, and energy flux. Two coefficients, N0 and ?, from an exponential fit between drop diameter and drop number density, are routinely calculated. Data are collected once a minute. The instruments make completely different kinds of measurements. Rain that falls on the disdrometer sensor moves a plunger on a vertical axis. The disdrometer transforms the plunger motion into electrical impulses whose strength is proportional to drop diameter. The rain gauge is the conventional tipping bucket type. Each tip collects an amount equivalent to 0.01 in. of water, and each tip is counted by a data acquisition system anchored by a Campbell CR1000 data logger.

  2. Optical Rain Gauge and Tipping Bucket Rain Gauge Comparisons

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access toOctober 1996TechnologiesDistribution, and FilmRain Gauge and

  3. Removable inner turbine shell with bucket tip clearance control

    DOE Patents [OSTI]

    Sexton, Brendan F. (Clifton Park, NY); Knuijt, Hans M. (Niskayuna, NY); Eldrid, Sacheverel Q. (Saratoga Springs, NY); Myers, Albert (Amsterdam, NY); Coneybeer, Kyle E. (Schenectady, NY); Johnson, David Martin (Ballston Lake, NY); Kellock, Iain R. (Clifton Park, NY)

    2000-01-01

    A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.

  4. DOE/SC-ARM/TR-079 Disdrometer and Tipping Bucket Rain Gauge

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalent Bonding Low-Cost2 DOE HQSiteo n n e v i2 ARM Climate16233

  5. Turbine bucket for use in gas turbine engines and methods for fabricating the same

    SciTech Connect (OSTI)

    Garcia-Crespo, Andres

    2014-06-03

    A turbine bucket for use with a turbine engine. The turbine bucket includes an airfoil that extends between a root end and a tip end. The airfoil includes an outer wall that defines a cavity that extends from the root end to the tip end. The outer wall includes a first ceramic matrix composite (CMC) substrate that extends a first distance from the root end to the tip end. An inner wall is positioned within the cavity. The inner wall includes a second CMC substrate that extends a second distance from the root end towards the tip end that is different than the first distance.

  6. Recycler barrier RF buckets

    SciTech Connect (OSTI)

    Bhat, C.M.; /Fermilab

    2011-03-01

    The Recycler Ring at Fermilab uses a barrier rf systems for all of its rf manipulations. In this paper, I will give an overview of historical perspective on barrier rf system, the longitudinal beam dynamics issues, aspects of rf linearization to produce long flat bunches and methods used for emittance measurements of the beam in the RR barrier rf buckets. Current rf manipulation schemes used for antiproton beam stacking and longitudinal momentum mining of the RR beam for the Tevatron collider operation are explained along with their importance in spectacular success of the Tevatron luminosity performance.

  7. Turbine bucket natural frequency tuning rib

    DOE Patents [OSTI]

    Wang, John Zhiqiang (Greenville, SC); Norton, Paul Francis (Greenville, SC); Barb, Kevin Joseph (Halfmoon, NY); Jacala, Ariel Caesar-Prepena (Simpsonville, SC)

    2002-01-01

    A tuning rib is added preferably in the aft cavity of a cored turbine bucket to alter the bucket's natural frequencies. The tuning rib may be a solid rib or a segmented rib and is particularly suited for altering high order frequency modes such as 2T, 4F and 1-3S. As such, detrimental crossings of natural bucket frequencies and gas turbine stimuli can be avoided to thereby improve the reliability of a gas turbine without impacting other features of the bucket that are important to the performance of the gas turbine.

  8. Prototype bucket foundation for wind turbines

    E-Print Network [OSTI]

    Prototype bucket foundation for wind turbines -natural frequency estimation Lars Bo Ibsen Morten bucket foundation for wind turbines -natural frequency estimation by Lars Bo Ibsen Morten Liingaard foundation for wind turbines--natural frequency estimation" is divided into four numbered sections

  9. Gas turbine bucket wall thickness control

    DOE Patents [OSTI]

    Stathopoulos, Dimitrios (Glenmont, NY); Xu, Liming (Greenville, SC); Lewis, Doyle C. (Greer, SC)

    2002-01-01

    A core for use in casting a turbine bucket including serpentine cooling passages is divided into two pieces including a leading edge core section and a trailing edge core section. Wall thicknesses at the leading edge and the trailing edge of the turbine bucket can be controlled independent of each other by separately positioning the leading edge core section and the trailing edge core section in the casting die. The controlled leading and trailing edge thicknesses can thus be optimized for efficient cooling, resulting in more efficient turbine operation.

  10. Liquid cooled counter flow turbine bucket

    DOE Patents [OSTI]

    Dakin, James T. (Schenectady, NY)

    1982-09-21

    Means and a method are provided whereby liquid coolant flows radially outward through coolant passages in a liquid cooled turbine bucket under the influence of centrifugal force while in contact with countercurrently flowing coolant vapor such that liquid is entrained in the flow of vapor resulting in an increase in the wetted cooling area of the individual passages.

  11. Housekeeping Tips Housekeeping tips

    E-Print Network [OSTI]

    Davis, Jesse

    's even healthier. To reduce the chlorine-taste, you can use a water filter (Saey, Brita), or leave1 Housekeeping Tips #12;2 Housekeeping tips 1. Water and cleaning 1.1 rational use of water 1.2 use ________________________________________________ 1. Water and cleaning 1.1 Rational use of water · Drinking The water that comes out of the tap

  12. Third-stage turbine bucket airfoil

    DOE Patents [OSTI]

    Pirolla, Peter Paul (Greenville, SC); Siden, Gunnar Leif (Greenville, SC); Humanchuk, David John (Simpsonville, SC); Brassfield, Steven Robert (Cincinnati, OH); Wilson, Paul Stuart (New Richmond, OH)

    2002-01-01

    The third-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinates defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.

  13. Static Score Bucketing in Inverted Indexes Chavdar Botev

    E-Print Network [OSTI]

    Fontoura, Marcus F.

    Static Score Bucketing in Inverted Indexes Chavdar Botev Cornell University 4130 Upson Hall Ithaca results when the entire inverted lists cannot be pro- cessed. This heuristic, however, increases the cost of index generation and requires complex index build algorithms. In this paper, we study a new index

  14. ThePopularCrazeofSummer2014: ALSIceBucketChallenge

    E-Print Network [OSTI]

    Hammack, Richard

    INSIDE During the summer of 2014, a huge craze splashed across the nation: theALS ice bucket challenge. For weeks, people all over the country posted videos of themselves dumping ice water on their heads is wonderful" but emphasized that "the actual dumping of ice on your head then nominating someone else to do

  15. First-stage high pressure turbine bucket airfoil

    DOE Patents [OSTI]

    Brown, Theresa A.; Ahmadi, Majid; Clemens, Eugene; Perry, II, Jacob C.; Holiday, Allyn K.; Delehanty, Richard A.; Jacala, Ariel Caesar

    2004-05-25

    The first-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinates defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.

  16. Rain sampling device

    DOE Patents [OSTI]

    Nelson, D.A.; Tomich, S.D.; Glover, D.W.; Allen, E.V.; Hales, J.M.; Dana, M.T.

    1991-05-14

    The present invention constitutes a rain sampling device adapted for independent operation at locations remote from the user which allows rainfall to be sampled in accordance with any schedule desired by the user. The rain sampling device includes a mechanism for directing wet precipitation into a chamber, a chamber for temporarily holding the precipitation during the process of collection, a valve mechanism for controllably releasing samples of the precipitation from the chamber, a means for distributing the samples released from the holding chamber into vessels adapted for permanently retaining these samples, and an electrical mechanism for regulating the operation of the device. 11 figures.

  17. Rain sampling device

    DOE Patents [OSTI]

    Nelson, Danny A. (Richland, WA); Tomich, Stanley D. (Richland, WA); Glover, Donald W. (Prosser, WA); Allen, Errol V. (Benton City, WA); Hales, Jeremy M. (Kennewick, WA); Dana, Marshall T. (Richland, WA)

    1991-01-01

    The present invention constitutes a rain sampling device adapted for independent operation at locations remote from the user which allows rainfall to be sampled in accordance with any schedule desired by the user. The rain sampling device includes a mechanism for directing wet precipitation into a chamber, a chamber for temporarily holding the precipitation during the process of collection, a valve mechanism for controllably releasing samples of said precipitation from said chamber, a means for distributing the samples released from the holding chamber into vessels adapted for permanently retaining these samples, and an electrical mechanism for regulating the operation of the device.

  18. West Texas Rain 

    E-Print Network [OSTI]

    Supercinski, Danielle

    2006-01-01

    Commission, Culberson County Underground Water District and county officials to install a 2,500-gallon rainwater harvesting tank at the Culberson County Courthouse. West Texas Rain Rainwater harvesting demonstration sites save water and money (Above... Left) One of the three rainwater harvesting demonstrations is located at the Culberson County Courthouse in Van Horn. This 2,500-gallon tank has been installed to catch and store the rainwater. (Above Right) Landscape irrigation using the harvested...

  19. Injection method of barrier bucket supported by misaligned electron cooling for CRing

    E-Print Network [OSTI]

    Shen, Guo-Dong; Xia, Jia-Wen; Mao, Li-Jun; Yin, Da-Yu; Chai, Wei-Ping; Shi, Jian; Sheng, Li-Na; Smirnov, A; Wu, Bo; Zhao, He

    2016-01-01

    A new accelerator complex HIAF (the High Intensity Heavy Ion Accelerator Facility) is approved in China. It is designed to provide intense primary and radioactive ion beams for researches in high energy density physics, nuclear physics, atomic physics as well as other applications. In order to achieve a high intensity up to 5e11ppp 238U34+, CRing needs to stack more than 5 bunches transferred from BRing. However, the normal bucket to bucket injection scheme can only achieve an intensity gain of 2, so an injection method, fixed barrier bucket (BB) supported by electron cooling, is proposed. To suppress the severe space charge effect during the stacking process, misalignment is adopted in the cooler to control the transverse emittance. In this paper the simulation and optimization with BETACOOL program are presented.

  20. Controlling acid rain : policy issues

    E-Print Network [OSTI]

    Fay, James A.

    1983-01-01

    The policy and regulatory ramifications of U.S. acid rain control programs are examined; particularly, the alternative of a receptor-oriented strategy as constrasted to emission-oriented proposals (e.g., the Mitchell bill) ...

  1. Story Tips for Media | ORNL

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

    Contacts Media Mentions RSS Feeds News Home | ORNL | News | Story Tips Story Tips ORNL's Office of Communications works with national, regional, and local media outlets on news...

  2. Post-Show Tips

    Broader source: Energy.gov [DOE]

    These guidelines are designed to help you with the post-show process. This page includes tips for tearing down your exhibit, shipping the exhibit, and collecting your bills.

  3. Water Conservation Tips

    E-Print Network [OSTI]

    Brown, Martha

    2008-01-01

    Gardener Water Conservation Tips fo r t h e UCSC Farm &aware of the need to use water responsibly, whether or notcut landscape and garden water needs. Here we share some of

  4. Magnet pole tips

    DOE Patents [OSTI]

    Thorn, Craig E. (Wading River, NY); Chasman, Chellis (Setauket, NY); Baltz, Anthony J. (Coram, NY)

    1984-04-24

    An improved magnet which more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

  5. Magnet pole tips

    DOE Patents [OSTI]

    Thorn, C.E.; Chasman, C.; Baltz, A.J.

    1981-11-19

    An improved magnet more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

  6. Web Editors Tips & Tricks

    E-Print Network [OSTI]

    Dhamala, Mukesh

    Web Editors VOLUME 4.0 Tips & Tricks Editing is the first step to success: One of the most important aspects of maintaining a successful web presence is the editing process. It is extremely important and review: studentaffairs.gsu.edu/web-support. · Phone: Hyphenate to separate sections. · Time: Reference

  7. GEOMETRY TIP CAP EFFECTS ON FORMATION AND NEAR WAKE EVOLUTION OF THE ROTOR TIP VORTICES

    E-Print Network [OSTI]

    blade tip cap. PIV measurements of the crossflow velocities around the forming tip vortex were performed

  8. Tips: Lighting | Department of Energy

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

    Tips: Lighting Tips: Lighting Lighting choices save you money. Energy-efficient light bulbs are available in a wide variety of sizes and shapes. Lighting choices save you money....

  9. Acid rain information book. Draft final report

    SciTech Connect (OSTI)

    None

    1980-12-01

    Acid rain is one of the most widely publicized environmental issues of the day. The potential consequences of increasingly widespread acid rain demand that this phenomenon be carefully evaluated. Reveiw of the literature shows a rapidly growing body of knowledge, but also reveals major gaps in understanding that need to be narrowed. This document discusses major aspects of the acid rain phenomenon, points out areas of uncertainty, and summarizes current and projected research by responsible government agencies and other concerned organizations.

  10. Rain, Rain, Don't Go Away Taking a 360-Degree View of Water

    E-Print Network [OSTI]

    Christian, Eric

    Rain, Rain, Don't Go Away Taking a 360-Degree View of Water The Science of Photography National Flood Studies Field Campaign ­ 6 Taking a 360-Degree View of Water ­ 8 From GLOBE Star Student to GLOBE

  11. The Effect of Rain on ERS Scatterometer Measurements

    E-Print Network [OSTI]

    Long, David G.

    measurements in rainy conditions [1] [2]. In a raining area, rain striking the water surface creates splashThe Effect of Rain on ERS Scatterometer Measurements Congling Nie and David G. Long Department evidence of rain surface per- turbation in recent studies of surface radar backscatter, the rain effects

  12. Gas only nozzle fuel tip

    DOE Patents [OSTI]

    Bechtel, William Theodore (Scotia, NY); Fitts, David Orus (Ballston Spa, NY); DeLeonardo, Guy Wayne (Glenville, NY)

    2002-01-01

    A diffusion flame nozzle gas tip is provided to convert a dual fuel nozzle to a gas only nozzle. The nozzle tip diverts compressor discharge air from the passage feeding the diffusion nozzle air swirl vanes to a region vacated by removal of the dual fuel components, so that the diverted compressor discharge air can flow to and through effusion holes in the end cap plate of the nozzle tip. In a preferred embodiment, the nozzle gas tip defines a cavity for receiving the compressor discharge air from a peripheral passage of the nozzle for flow through the effusion openings defined in the end cap plate.

  13. Outlook 2010 Tips 'n Tricks General Outlook Tips

    E-Print Network [OSTI]

    1 Outlook 2010 Tips 'n Tricks General Outlook Tips 1. Display Outlook Today Mail | Click on the top-level email account address to display a customizable "Day at a Glance" view of Outlook 2. Change Outlook's default starting location File | Options | Advanced | "Start Outlook in this folder:" | Browse

  14. Tips: Lighting | Department of Energy

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

    are available as flood lights. These models have been tested to withstand the rain and snow so they can be used in exposed fixtures. Look for ENERGY STAR-qualified fixtures that...

  15. Actuals Journal Approval Tip NUFinancials

    E-Print Network [OSTI]

    Shull, Kenneth R.

    Actuals Journal Approval Tip NUFinancials Workflow and Approvals FMS804 02/20/2009-vlr FMS804 Actuals Journal Approval Tip © 2009 Northwestern University FMS804 ­ Job Aid Page 1 of 1 This job aid describes what an Actuals Journal should look like to an Approver. Explanation: Whenever an Actuals journal

  16. Long range transport of acid rain precursors

    E-Print Network [OSTI]

    Fay, James A.

    1983-01-01

    A model of the long range transport of primary and secondary pollutants derived by Fay and Rosenzweig (1) is applied to the problem of the transport of acid rain precursors. The model describes the long term average (annual ...

  17. Tips: Laundry | Department of Energy

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

    circulation and prevent fire hazards. Periodically, use the long nozzle tip on your vacuum cleaner to remove the lint that collects below the lint screen in the lint screen slot...

  18. Energy Savers: Cool Summer Tips

    SciTech Connect (OSTI)

    Miller, M.

    2001-06-18

    A tri-fold brochure addressing energy-saving tips for homeowners ranging from low- or no-cost suggestions to higher cost suggestions for longer-term savings. Cooling, windows, weatherizing, and landscaping are addressed.

  19. Library Quick TipsLibrary Quick TipsLibrary Quick TipsLibrary Quick Tips Library ServicesLibrary ServicesLibrary ServicesLibrary Services

    E-Print Network [OSTI]

    Library Quick TipsLibrary Quick TipsLibrary Quick TipsLibrary Quick Tips i Library ServicesLibrary ServicesLibrary ServicesLibrary Services library.murdoch.edu.au/Students/ BORROWING (Undergraduates) You hour of the Library opening. Penalty points When an item is not returned on time, you accrue penalty

  20. Turbine blade with contoured chamfered squealer tip

    DOE Patents [OSTI]

    Lee, Ching-Pang

    2014-12-30

    A squealer tip formed from a pressure side tip wall and a suction side tip wall extending radially outward from a tip of the turbine blade is disclosed. The pressure and suction side tip walls may be positioned along the pressure sidewall and the suction sidewall of the turbine blade, respectively. The pressure side tip wall may include a chamfered leading edge with film cooling holes having exhaust outlets positioned therein. An axially extending tip wall may be formed from at least two outer linear surfaces joined together at an intersection forming a concave axially extending tip wall. The axially extending tip wall may include a convex inner surface forming a radially outer end to an inner cavity forming a cooling system. The cooling system may include one or more film cooling holes in the axially extending tip wall proximate to the suction sidewall, which promotes increased cooling at the pressure and suction sidewalls.

  1. Fabrication of gas turbine water-cooled composite nozzle and bucket hardware employing plasma spray process

    DOE Patents [OSTI]

    Schilke, Peter W. (4 Hempshire Ct., Scotia, NY 12302); Muth, Myron C. (R.D. #3, Western Ave., Amsterdam, NY 12010); Schilling, William F. (301 Garnsey Rd., Rexford, NY 12148); Rairden, III, John R. (6 Coronet Ct., Schenectady, NY 12309)

    1983-01-01

    In the method for fabrication of water-cooled composite nozzle and bucket hardware for high temperature gas turbines, a high thermal conductivity copper alloy is applied, employing a high velocity/low pressure (HV/LP) plasma arc spraying process, to an assembly comprising a structural framework of copper alloy or a nickel-based super alloy, or combination of the two, and overlying cooling tubes. The copper alloy is plamsa sprayed to a coating thickness sufficient to completely cover the cooling tubes, and to allow for machining back of the copper alloy to create a smooth surface having a thickness of from 0.010 inch (0.254 mm) to 0.150 inch (3.18 mm) or more. The layer of copper applied by the plasma spraying has no continuous porosity, and advantageously may readily be employed to sustain a pressure differential during hot isostatic pressing (HIP) bonding of the overall structure to enhance bonding by solid state diffusion between the component parts of the structure.

  2. Tips: Windows | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowing YouNeed forUnruh About Us Timothy Unruh -HeatTips:Tips:

  3. Scanning tip microwave near field microscope

    DOE Patents [OSTI]

    Xiang, Xiao-Dong (Alameda, CA); Schultz, Peter G. (Oakland, CA); Wei, Tao (Albany, CA)

    1998-01-01

    A microwave near field microscope has a novel microwave probe structure wherein the probing field of evanescent radiation is emitted from a sharpened metal tip instead of an aperture or gap. This sharpened tip, which is electrically and mechanically connected to a central electrode, extends through and beyond an aperture in an endwall of a microwave resonating device such as a microwave cavity resonator or a microwave stripline resonator. Since the field intensity at the tip increases as the tip sharpens, the total energy which is radiated from the tip and absorbed by the sample increases as the tip sharpens. The result is improved spatial resolution without sacrificing sensitivity.

  4. the journalist Tips and advice

    E-Print Network [OSTI]

    Stølen, Ketil

    with criticism against UiO 16 The principle of public access 18 Media training and advice 20 PHOTO1 When the journalist calls Tips and advice on how to handle the media PHOTO:COLOURBOX.COM #12;2 3 article or debate article Take the initiative to contact the media! PHOTO:COLOURBOX.COM #12;8 9

  5. Turbine blade tip flow discouragers

    DOE Patents [OSTI]

    Bunker, Ronald Scott (Niskayuna, NY)

    2000-01-01

    A turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationery shroud. The rotating blade portions comprise a root section, a tip portion and an airfoil. The tip portion has a pressure side wall and a suction side wall. A number of flow discouragers are disposed on the blade tip portion. In one embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned generally parallel to the direction of rotation. In an alternative embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned at an angle in the range between about 0.degree. to about 60.degree. with respect to a reference axis aligned generally parallel to the direction of rotation. The flow discouragers increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

  6. Why we started a Volunteer Rain Gauge Network

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    in their backyards #12;4-inch diameter High capacity rain gauges Aluminum foil-wrapped Styrofoam hail pads Snow

  7. Tips: Water Heating | Department of Energy

    Office of Environmental Management (EM)

    Tips: Water Heating Tips: Water Heating July 17, 2014 - 4:53pm Addthis Keep your energy bills out of hot water. Insulate your water heater to save energy and money, or choose an...

  8. Loss mechanisms in turbine tip clearance flows

    E-Print Network [OSTI]

    Huang, Arthur (Arthur C.)

    2011-01-01

    Numerical simulations of tip clearance ow have been carried out to dene the loss generation mechanisms associated with tip leakage in unshrouded axial turbines. Mix- ing loss between the leakage, which takes the form of a ...

  9. Tips: Booklet Distribution | Department of Energy

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

    Tips: Booklet Distribution There are many ways to obtain Energy Saver-Tips on Saving Money and Energy at Home You can access Energy Saver, as well as the Spanish-language Energy...

  10. Tips: Booklet Distribution | Department of Energy

    Office of Environmental Management (EM)

    Addthis Tips: Booklet Distribution There are many ways to obtain Energy Saver-Tips on Saving Money and Energy at Home You can access Energy Saver, as well as the...

  11. Sediment detachment by rain power Emmanuel J. Gabet

    E-Print Network [OSTI]

    Gabet, Emmanuel "Manny"

    , washload, kinematic wave Citation: Gabet, E. J., and T. Dunne, Sediment detachment by rain power, Water, detaching soil particles and displacing water. We use the term, rain power, to describe the rate at whichSediment detachment by rain power Emmanuel J. Gabet Department of Geological Sciences, University

  12. Berry Brook Watershed 2011 Rain Barrel Sale for Dover Residents

    E-Print Network [OSTI]

    . Allowing rain water to soak into the soil decreases stormwater runoff and helps recharge your groundwaterBerry Brook Watershed 2011 Rain Barrel Sale for Dover Residents Order Online: www Road Dover, NH 03824 Final day to ORDER: Orders must reach SkyJuice by June 18 Pick up your Rain Barrel

  13. Top Tips for Accessing Oxford's Information Resources

    E-Print Network [OSTI]

    Oxford, University of

    Top Tips for Accessing Oxford's Information Resources And How Brasenose College Library Fits In #12, electronic journals and books Top Tip 1: Attend the Bodleian induction sessions for your subject #12;Oxford ­ departmental, faculty, college Top Tip 2: Explore smaller libraries ­ www

  14. Top Tips for Accessing Oxford's Information Resources

    E-Print Network [OSTI]

    Oxford, University of

    Top Tips for Accessing Oxford's Information Resources And How Brasenose College Library Fits In #12, electronic journals and books Top Tip 1: Attend the induction session in your departmental library #12;Oxford ­ departmental, faculty, college Top Tip 2: Explore smaller libraries ­ www

  15. Injector tip for an internal combustion engine

    DOE Patents [OSTI]

    Shyu, Tsu Pin; Ye, Wen

    2003-05-20

    This invention relates to a the tip structure of a fuel injector as used in a internal combustion engine. Internal combustion engines using Homogeneous Charge Compression Ignition (HCCI) technology require a tip structure that directs fuel spray in a downward direction. This requirement necessitates a tip design that is capable of withstanding mechanical stresses associated with the design.

  16. Adjustable Speed Pumping Applications - Pumping Systems Tip Sheet #11

    SciTech Connect (OSTI)

    2007-01-01

    This two-page tip sheet provides practical tips on application of Adjustable Speed Drives in industrial settings.

  17. Heavy rains hamper Louisiana gas line

    SciTech Connect (OSTI)

    Horner, C.

    1983-06-01

    Despite heavy rains and flooding a 36-mile gas pipeline loop for Transcontinental Gas Pipe Line Corp. was completed from north of Starks (at the end of Transco's south Louisiana lateral) to the Lake Charles area. Somastic-coated, 42-in. grade X-60 pipe comprises 90% of the route. The contract included multiple 30-42 in. fabrications, installation of six 42-in. gate valves, and expansion of the Gillis compressor station.

  18. Concurrent diffusion of information and behaviors in online social networks -- a case study of the Ice Bucket Challenge

    E-Print Network [OSTI]

    Wang, Shiyao; Zhang, Qi; Zhao, Kang

    2015-01-01

    Using the spread of the Ice Bucket Challenge on Twitter as a case study, this research compared the concurrent diffusion patterns of both information and behaviors in online social networks. Individual behaviors in taking the Challenge were detected by applying text mining techniques to millions of tweets. After comparing diffusion dynamics of information and behaviors at the network level, the individual level, and the dyadic level, our analysis revealed interesting differences and interactions between the two diffusion processes and laid foundations for future predictive and prescriptive analytics for information and behavior diffusion in social networks.

  19. Arc discharge regulation of a megawatt hot cathode bucket ion source for the experimental advanced superconducting tokamak neutral beam injector

    SciTech Connect (OSTI)

    Xie Yahong; Hu Chundong; Liu Sheng; Jiang Caichao; Li Jun; Liang Lizhen; Collaboration: NBI Team

    2012-01-15

    Arc discharge of a hot cathode bucket ion source tends to be unstable what attributes to the filament self-heating and energetic electrons backstreaming from the accelerator. A regulation method, which based on the ion density measurement by a Langmuir probe, is employed for stable arc discharge operation and long pulse ion beam generation. Long pulse arc discharge of 100 s is obtained based on this regulation method of arc power. It establishes a foundation for the long pulse arc discharge of a megawatt ion source, which will be utilized a high power neutral beam injection device.

  20. Tips: Insulation | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 Timeline of Events: 1938-1950Insulation Tips:

  1. Tips: Laundry | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofTheLaundry Tips: Laundry Save energy and

  2. Tips: Appliances | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowing YouNeed forUnruh About Us Timothy Unruh - FEMPofTips:

  3. Seasonal Tips | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4 » Search results SearchMiddle SchoolDownloadSeasonal Tips

  4. Tips: Lighting | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobsMotionHeatEnergy Solar Training for Veterans toHomeLighting Tips:

  5. Tips: Appliances | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of EnergyResearchers at theAugust 1, 2013the New Funding AugustTipsThis

  6. Tips: Lighting | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 Timeline of Events: 1938-1950InsulationLighting Tips:

  7. Rain Machine (Solar Still) | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 - Oct. 7,DOE HDBK-1113-2008 April 2008 DOE98Rain Machine (Solar

  8. Jack Rains | Y-12 National Security Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATIONIntroducing theActivation byIs aItemPolarTool andJack Rains

  9. Minimize Boiler Blowdown - Steam Tip Sheet #9

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet on minimizing boiler blowdown provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  10. Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman

    E-Print Network [OSTI]

    1 Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman NOAA-Ocean Buoy Network) moored buoy array is designed to provide high quality data in real-time for improved

  11. TIPS TO PREPARE FOR MOVING OUT OF YOUR UNIT Cleaning Tips and Price List

    E-Print Network [OSTI]

    Hung, I-Kuai

    TIPS TO PREPARE FOR MOVING OUT OF YOUR UNIT Cleaning Tips and Price List The Residence Life. 3. Prices below are estimates; charges may vary based on severity of each occurrence. BEDROOM Item

  12. Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman

    E-Print Network [OSTI]

    Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman NOAA Michael McPhaden, chairman of the Tropical Moored Buoy Implementation Panel (TIP), briefed the panel on three topics: 1) the current successes of the TAO/TRITON partnership in maintaining the moored buoy

  13. How to prepare AFM tip bundle (tip + ceramic plate)1 To assemble an AFM tip bundle by using an AFM tip on a holder chip and a used ceramic

    E-Print Network [OSTI]

    How to prepare AFM tip bundle (tip + ceramic plate)1 02/14/2008 Goal: To assemble an AFM tip bundle by using an AFM tip on a holder chip and a used ceramic plate, so that it is compatible with the Autoprobe CP AFM. Main Materials and tools: a. Used ceramic plates b. AFM tip on a holder chip (see fig. 1) c

  14. GARDENSA RAIN GARDEN MANUAL FOR SOUTH CAROLINA As development increases, so

    E-Print Network [OSTI]

    Stuart, Steven J.

    #12;Rain gardens should be located in an area to which rain water typically flows. If a depression a storm will produce more than 1 inch of rain in 24 hours, excess water should be able to leave the rain an overflow so that excess water from larger storms can be diverted out of the rain garden. To prevent

  15. Mesoscale Metallic Pyramids with Nanoscale Tips

    E-Print Network [OSTI]

    Odom, Teri W.

    Mesoscale Metallic Pyramids with Nanoscale Tips Joel Henzie, Eun-Soo Kwak, and Teri W. Odom generate free-standing mesoscale metallic pyramids composed of one or more materials and having nanoscale tips (radii of curvature of less than 2 nm). Mesoscale holes (100-300 nm) in a chromium film are used

  16. Neutron Reference Benchmark Field Specifications: ACRR Polyethylene-Lead-Graphite (PLG) Bucket Environment (ACRR-PLG-CC-32-CL).

    SciTech Connect (OSTI)

    Vega, Richard Manuel; Parm, Edward J.; Griffin, Patrick J.; Vehar, David W.

    2015-07-01

    This report was put together to support the International Atomic Energy Agency (IAEA) REAL- 2016 activity to validate the dosimetry community’s ability to use a consistent set of activation data and to derive consistent spectral characterizations. The report captures details of integral measurements taken in the Annular Core Research Reactor (ACRR) central cavity with the Polyethylene-Lead-Graphite (PLG) bucket, reference neutron benchmark field. The field is described and an “a priori” calculated neutron spectrum is reported, based on MCNP6 calculations, and a subject matter expert (SME) based covariance matrix is given for this “a priori” spectrum. The results of 37 integral dosimetry measurements in the neutron field are reported.

  17. Tip cap for a turbine rotor blade

    DOE Patents [OSTI]

    Kimmel, Keith D

    2014-03-25

    A turbine rotor blade with a spar and shell construction, and a tip cap that includes a row of lugs extending from a bottom side that form dovetail grooves that engage with similar shaped lugs and grooves on a tip end of the spar to secure the tip cap to the spar against radial displacement. The lug on the trailing edge end of the tip cap is aligned perpendicular to a chordwise line of the blade in the trailing edge region in order to minimize stress due to the lugs wanting to bend under high centrifugal loads. A two piece tip cap with lugs at different angles will reduce the bending stress even more.

  18. Acid rain - A further look at the evidence

    SciTech Connect (OSTI)

    Katzenstein, A.W.

    1986-03-01

    There is widespread belief that acid rain is damaging lakes and forests in eastern North America, and that the threat of further damage is severe enough to warrant prompt remedial action. The cause of acid rain, hence ecological damage, is popularly held to be the sulfur dioxide (SO/sub 2/) and nitrogen oxides (NO/sub x/) created by the combustion of fossil fuels. This popular belief rests on a narrow selection of data, and is not substantiated by the broader body of knowledge which is available. Nevertheless, numerous bills have been introduced in Congress proposing large reductions in SO/sub 2/ emissions. For example, the first bill introduced in 1985 was S.52, ''The Acid Rain Control Act of 1985.'' It calls for reducing SO/sub 2/ emissions by 10 million tons annually. While the language of S.52 and similar bills is not specific on causes and effects of acid rain, the testimony before Congressional committees made it clear that the concerns focus on the actual or potential acidification of lakes and soils by acid rain, and actual or potential impacts of acid rain on fish, other aquatic life, trees, crops, and human health. This article assesses the merits of these contentions about acid rain by examining technical evidence that relates SO/sub 2/ emissions to the acidity of rain to actual or potential environmental impacts.

  19. Sulfur controls edge closer in acid-rain debate

    SciTech Connect (OSTI)

    Not Available

    1984-10-04

    The role of airborne sulfur emissions from midwestern and southern coal-fired power plants in exacerbating the acid rain problem is discussed. This problem is discussed from the standpoint of legislation, compliance costs, scrubber performance and cost, and chemistry of acid rains.

  20. Simultaneous Wind and Rain Retrieval for ERS Scatterometer Measurements

    E-Print Network [OSTI]

    Long, David G.

    Simultaneous Wind and Rain Retrieval for ERS Scatterometer Measurements Congling Nie and David G on the ESCAT wind-only retrieval has been evaluated. For high incidence angle measurements, the additional scattering of rain causes estimated wind speeds to appear higher than expected. It is also noted

  1. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Karl Kong, Pei Wen Lei, Yabo Li, Rain Yuan Rain Tian

    E-Print Network [OSTI]

    that are currently used to collect food scraps at UBC are cleaned at the Composting Facility located at the south, Yabo Li, Rain Yuan Rain Tian AN INVETIGATION INTO ORGANIC WASTE BIN LINERS APSC 262 April 10, 2014 1036 Technology and Society Instructor Name: Paul Winkelman AN INVETIGATION INTO ORGANIC WASTE BIN LINERS

  2. Social Media and Messages that Matter - Top Tips and Tools |...

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

    and Messages that Matter - Top Tips and Tools Social Media and Messages that Matter - Top Tips and Tools Better Buildings Residential Network Peer Exchange Call Series: Social...

  3. Consider Installing a Condensing Economizer - Steam Tip Sheet #26A

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet is part of a series of tip sheets on how to optimize an industrial steam system.

  4. Tips for Renters and Property Owners | Department of Energy

    Energy Savers [EERE]

    tips in these sections: Lighting Heating and Cooling Appliances Home Office and Home Electronics Windows Transportation Encourage your landlord to follow these tips as well. He or...

  5. Tips: Buying and Driving Fuel Efficient and Alternative Fuel...

    Office of Environmental Management (EM)

    & Fuel Vehicles & Fuels Tips: Buying and Driving Fuel Efficient and Alternative Fuel Vehicles Tips: Buying and Driving Fuel Efficient and Alternative Fuel Vehicles...

  6. Dictionary of Upriver Halkomelem, Volume I

    E-Print Network [OSTI]

    Galloway, Brent Douglas

    2009-01-01

    rain-water drops in a bucket::q'pá:ls rain-water drops in a bucket::~ th'eq'ém. collected rain-water from a drip:: th'q'émelets

  7. Tips: Water Heating | Department of Energy

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

    Water Heating Tips: Water Heating July 17, 2014 - 4:53pm Addthis Keep your energy bills out of hot water. Insulate your water heater to save energy and money, or choose an...

  8. Assorted QCI Tips and Standards Review

    Broader source: Energy.gov [DOE]

    This document contains a list of tips for taking the Quality Control Inspector (QCI) Home Energy Professional Certification Exam and a review of standards, provided by the University of Illinois, Urbana-Champaign's Indoor Climate Research & Training.

  9. Grafting fluorescent nanodiamonds onto optical tips

    E-Print Network [OSTI]

    Cuche, A; Roch, J -F; Treussart, F; Huant, S

    2010-01-01

    We have recently (Optics Express 17, 19969 (2009)) introduced an all-optical method for grafting onto the apex of an optical tip a single 20 nm nanodiamond with single color-center occupancy and used the resulting single-photon tip in scanning near-field imaging at room temperature, thereby achieving a genuine scanning single-photon microscopy working in ambient conditions. Here, we describe a variant of the above method that allows for attaching several nanodiamonds onto the tip apex, releasing them all at once and finally recapturing them one by one by the scanning tip. This underlines the flexibility and powerfulness of our method and its variant that could be used in applications where a fixed number of selected optically active nano-objects requires positioning, or repositioning, at well defined locations with nanometer accuracy.

  10. 2004 ORNL Story Tips | ornl.gov

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

    4 2004 ORNL Story Tips 1-10 of 46 Results Prev 12345 Next Materials - Cool under pressure December 01, 2004 - Firefighters, first responders and even team mascots and Disney...

  11. Compressor airfoil tip clearance optimization system

    DOE Patents [OSTI]

    Little, David A.; Pu, Zhengxiang

    2015-08-18

    A compressor airfoil tip clearance optimization system for reducing a gap between a tip of a compressor airfoil and a radially adjacent component of a turbine engine is disclosed. The turbine engine may include ID and OD flowpath boundaries configured to minimize compressor airfoil tip clearances during turbine engine operation in cooperation with one or more clearance reduction systems that are configured to move the rotor assembly axially to reduce tip clearance. The configurations of the ID and OD flowpath boundaries enhance the effectiveness of the axial movement of the rotor assembly, which includes movement of the ID flowpath boundary. During operation of the turbine engine, the rotor assembly may be moved axially to increase the efficiency of the turbine engine.

  12. 2002 ORNL Story Tips | ornl.gov

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

    2 2002 ORNL Story Tips 1-10 of 16 Results Prev 12 Next Robotics - Easing the warrior's load December 01, 2002 - Soldiers, the elderly and handicapped alike will get a big assist...

  13. 2011 ORNL Story Tips | ornl.gov

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

    1 2011 ORNL Story Tips 1-10 of 61 Results Prev 12345 Next Energy - Confronting a biofuel barrier December 01, 2011 - New supercomputing simulations at Oak Ridge National Laboratory...

  14. Tips: Shopping for Lighting | Department of Energy

    Energy Savers [EERE]

    Lighting Tips: Shopping for Lighting July 17, 2014 - 7:27pm Addthis With an array of lighting options, use the Lighting Facts label to determine the right lightbulb for you. |...

  15. 2014 ORNL Story Tips | ornl.gov

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

    4 2014 ORNL Story Tips 1-10 of 49 Results Prev 12345 Next Imaging - Clearer brain scans ... December 02, 2014 - A clever signal noise reduction strategy developed by a team that...

  16. Tips: Heat Pumps | Department of Energy

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

    Heat Pumps Tips: Heat Pumps July 20, 2014 - 5:48pm Addthis Heat pumps can be a cost-effective choice in moderate climates, especially if you heat your home with electricity. Heat...

  17. Section 8.5 1. A worker on a roof 50 ft above the ground needs to lift a 300 lb bucket of cement from the ground

    E-Print Network [OSTI]

    Lin, Kevin K.

    Section 8.5 1. A worker on a roof 50 ft above the ground needs to lift a 300 lb bucket of cement the top of the tank. Note: 1 cubic foot water weighs 62.4 lb. 4. A gas station stores its gasoline;5. A gas station stores its gasoline in a tank under the ground. The tank is a cylinder standing in upright

  18. Pump Selection Considerations Pumping System Tip Sheet - #2

    SciTech Connect (OSTI)

    None

    2005-10-01

    BestPractices Program tip sheet discussing pumping system efficiency with pumping selection considerations.

  19. Dimethyl sulfide in the Amazon rain forest

    SciTech Connect (OSTI)

    Jardine, Kolby; Yanez-Serrano, A. M.; Williams, J.; Kunert, N.; Jardine, A.; Taylor, T.; Abrell, L.; Artaxo, Paulo; Guenther, Alex B.; Hewitt, C. N.; House, E.; Florentino, A. P.; Manzi, A.; Higuchi, N.; Kesselmeier, J.; Behrendt, T.; Veres, P. R.; Derstroff, B.; Fuentes, J.; Martin, Scot T.; Andreae, M. O.

    2015-01-01

    Surface-to-atmosphere emissions of dimethyl sulfide (DMS) may impact global climate 44 through the formation of gaseous sulfuric acid, which can yield secondary sulfate 45 aerosols and contribute to new particle formation. While oceans are generally 46 considered the dominant source of DMS, a shortage of ecosystem observations prevents 47 an accurate analysis of terrestrial DMS sources. Using mass spectrometry, we quantified 48 ambient DMS mixing ratios within and above a primary rainforest ecosystem in the 49 central Amazon Basin in real-time (2010-2011) and at high vertical resolution (2013-50 2014). Elevated but highly variable DMS mixing ratios were observed within the 51 canopy, showing clear evidence of a net ecosystem source to the atmosphere during 52 both day and night in both the dry and wet seasons. Periods of high DMS mixing ratios 53 lasting up to 8 hours (up to 160 ppt) often occurred within the canopy and near the 54 surface during many evenings and nights. Daytime gradients showed mixing ratios (up 55 to 80 ppt) peaking near the top of the canopy as well as near the ground following a rain 56 event. The spatial and temporal distribution of DMS suggests that ambient levels and 57 their potential climatic impacts are dominated by local soil and plant emissions. A soil 58 source was confirmed by measurements of DMS emission fluxes from Amazon soils as 59 a function of temperature and soil moisture. Furthermore, light and temperature 60 dependent DMS emissions were measured from seven tropical tree species. Our study 61 has important implications for understanding terrestrial DMS sources and their role in 62 coupled land-atmosphere climate feedbacks. 63

  20. Negotiating a Job Offer: Tips and Blunders Top 10 Negotiating Tips

    E-Print Network [OSTI]

    Negotiating a Job Offer: Tips and Blunders Top 10 Negotiating Tips: Listen Carefully: Listening their constraints and desires, as you expect them to recognize yours. Offer solutions: It is your responsibility to offer solutions, which can be the basis for negotiations. Pointing out just the issues or problems

  1. Turbine blade squealer tip rail with fence members

    DOE Patents [OSTI]

    Little, David A

    2012-11-20

    A turbine blade includes an airfoil, a blade tip section, a squealer tip rail, and a plurality of chordally spaced fence members. The blade tip section includes a blade tip floor located at an end of the airfoil distal from the root. The blade tip floor includes a pressure side and a suction side joined together at chordally spaced apart leading and trailing edges of the airfoil. The squealer tip rail extends radially outwardly from the blade tip floor adjacent to the suction side and extends from a first location adjacent to the airfoil trailing edge to a second location adjacent to the airfoil leading edge. The fence members are located between the airfoil leading and trailing edges and extend radially outwardly from the blade tip floor and axially from the squealer tip rail toward the pressure side.

  2. Local Mass and Heat Transfer on a Turbine Blade Tip

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

    Jin, P.; Goldstein, R. J.

    2003-01-01

    Local mass and heat transfer measurements on a simulated high-pressure turbine blade-tip surface are conducted in a linear cascade with a nonmoving tip endwall, using a naphthalene sublimation technique. The effects of tip clearance (0.86–6.90% of chord) are investigated at various exit Reynolds numbers (4–7 × 10 5 ) and turbulence intensities (0.2 and 12.0%). The mass transfer on the tip surface is significant along its pressure edge at the smallest tip clearance. At the two largest tip clearances, the separation bubble on the tip surface can cover the wholemore »width of the tip on the second half of the tip surface. The average mass-transfer rate is highest at a tip clearance of 1.72% of chord. The average mass-transfer rate on the tip surface is four and six times as high as on the suction and the pressure surface, respectively. A high mainstream turbulence level of 12.0% reduces average mass-transfer rates on the tip surface, while the higher mainstream Reynolds number generates higher local and average mass-transfer rates on the tip surface.« less

  3. Heavy pollution suppresses light rain in China: observations and modeling

    SciTech Connect (OSTI)

    Qian, Yun; Gong, Daoyi; Fan, Jiwen; Leung, Lai R.; Bennartz, Ralph; Chen, Deliang; Wang, Weiguo

    2009-08-15

    Long-term observational data reveal that both the frequency and amount of light rain have decreased in eastern China (EC) for 1956-2005 with high spatial coherency. This is different from the trend of total rainfall observed in EC, which decreases in northern EC and increases in southern EC. To examine the cause of the light rain trends, we analyzed the long-term variability of atmospheric water vapor and its correlation with light rain events. Results show very weak relationships between large-scale moisture transport and light rain in EC. This suggests that light rain trend in EC is not driven by large-scale circulation changes. Because of human activities, pollutant emission has increased dramatically in China for the last few decades, leading to significant reductions in visibility between 1960 and 2000. Cloud-resolving model simulations show that aerosols corresponding to heavily polluted conditions can significantly increase the cloud droplet number concentration (CDNC) and reduce droplet sizes compared to pristine conditions. This can lead to a significant decline in raindrop concentration and delay raindrop formation because smaller cloud droplets are less efficient in the collision and coalescence processes. Together with weaker convection, the precipitation frequency and amount are significantly reduced in the polluted case. Satellite data also reveal higher CDNC and smaller droplet size over polluted land in EC relative to pristine regions, which is consistent with the model results. This evidence suggests that the significantly increased aerosol particles produced by air pollution are at least partly responsible for the decreased light rain events observed in China over the past fifty years.

  4. Research Administration & Finance Tip of the Week

    E-Print Network [OSTI]

    Salama, Khaled

    ? Investigators conduct human subject research when they carry out experiments on humans, conduct observationalResearch Administration & Finance Tip of the Week Human Subjects What is Human Subject Research studies, or obtain data and individually identifiable private information about human beings

  5. Inside this issue: Green Holiday Tips 2

    E-Print Network [OSTI]

    Kidd, William S. F.

    Inside this issue: Message 1 Green Holiday Tips 2 Real vs. Fake Tree 3 Semester wrap up: Energy a record number of CFL bulbs being distributed in the living residences, had another great energy campaign such as compost bins, bird feeders, energy/water saving appliances, bikes or bus passes make great gifts! Make

  6. Winter Driving Tips Driving in Ice & Snow

    E-Print Network [OSTI]

    Capogna, Luca

    Winter Driving Tips Driving in Ice & Snow: When you must drive, clear the ice and snow from your in ice and snow, other drivers will be traveling cautiously. Don't disrupt the flow of traffic by driving handle better in ice and snow, but they do not have flawless traction, and skids can occur unexpectedly

  7. Housing Tips for International Students Oncampus Housing

    E-Print Network [OSTI]

    Fernandez, Eduardo

    1 Housing Tips for International Students Oncampus Housing Oncampus housing at FAU is available on the Boca Raton Campus and the MacArthur (Jupiter) Campus. Oncampus housing early! Housing is limited and allocated on a first come, first serve basis (especially for Graduate

  8. Tipping Pennies? Privately. Practical Anonymous Micropayments.

    E-Print Network [OSTI]

    Carbunar, Bogdan

    1 Tipping Pennies? Privately. Practical Anonymous Micropayments. Bogdan Carbunar, Yao Chen, Radu popular. Users can download MP3 music from websites (e.g. iTunes store [1]) for tens of pennies. Providing network services such as routing [2] and P2P file sharing [3] feature sub-penny service costs per routed

  9. Tipping Pennies? Privately. Practical Anonymous Micropayments.

    E-Print Network [OSTI]

    Carbunar, Bogdan

    1 Tipping Pennies? Privately. Practical Anonymous Micropayments. Bogdan Carbunar, Yao Chen, Radu, they feature impractical overheads for small, penny-level payments, due to expensive infrastructure [1]) for tens of pennies. Providing network services such as routing [2] and P2P file sharing [3

  10. Tips: Time-Based Electricity Rates | Department of Energy

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

    Tips: Time-Based Electricity Rates Tips: Time-Based Electricity Rates July 27, 2014 - 8:09pm Addthis Time-based electricity programs encourage you to use energy when the demand is...

  11. The relationship between crack-tip strain and subcritical cracking...

    Office of Scientific and Technical Information (OSTI)

    crack-tip strain and subcritical cracking thresholds for steels in high-pressure hydrogen gas. Citation Details In-Document Search Title: The relationship between crack-tip...

  12. Energy Efficiency Tips for Renters and Homeowners | Department...

    Energy Savers [EERE]

    Energy Efficiency Tips for Renters and Homeowners Energy Efficiency Tips for Renters and Homeowners July 30, 2014 - 4:43pm Addthis You don't have to own a home to save money on...

  13. Tips: Natural Gas and Oil Heating Systems | Department of Energy

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

    more about energy-efficient furnaces and boilers. Addthis Related Articles Tips: Natural Gas and Oil Heating Systems Energy Saver Guide: Tips on Saving Money and Energy at Home...

  14. Tips: Energy-Efficient Roofs | Department of Energy

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

    Energy-Efficient Roofs Tips: Energy-Efficient Roofs July 20, 2014 - 4:29pm Addthis Tips: Energy-Efficient Roofs If you've ever stood on a roof on a hot summer day, you know how hot...

  15. Tips: Saving Money on Gas | Department of Energy

    Office of Environmental Management (EM)

    Saving Money on Gas Tips: Saving Money on Gas June 17, 2015 - 5:19pm Addthis Tips: Saving Money on Gas In 2014, Americans drove 3.02 trillion miles-the equivalent of 6.2 million...

  16. Tips: Passive Solar Heating and Cooling | Department of Energy

    Office of Environmental Management (EM)

    Passive Solar Heating and Cooling Tips: Passive Solar Heating and Cooling July 27, 2014 - 4:18pm Addthis Tips: Passive Solar Heating and Cooling Using passive solar design to heat...

  17. Spring and Summer Energy-Saving Tips | Department of Energy

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

    Spring and Summer Energy-Saving Tips Spring and Summer Energy-Saving Tips May 30, 2012 - 1:21pm Addthis Simple and inexpensive actions can help you save energy and money during the...

  18. Improve Your Boiler's Combustion Efficiency - Steam Tip Sheet #4

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet helps plants establish a program for the regular inspection, testing and repair of stream traps.

  19. 7 Tips for Communicating Your Research to a General Audience

    SciTech Connect (OSTI)

    Labios, Liezel AN

    2014-10-15

    This ~900-word article provides useful tips for scientists (especially early career scientists) to communicate their research.

  20. Preparation and Characterization of Single-Atom Tips

    E-Print Network [OSTI]

    reproducible method of preparing single-atom tips by electroplating Pd or Pt on single-crystal W(111) tips method with electroplating a Pd (or Pt) film on the single-crystal W(111) tip is proposed. Electroplating single- crystal wire of 0.35 mm in diameter by electrochemical etching15 followed by coating with ethyl

  1. Northern Bering Sea tip jets G. W. K. Moore1

    E-Print Network [OSTI]

    Pickart, Robert S.

    Northern Bering Sea tip jets G. W. K. Moore1 and R. S. Pickart2 Received 28 February 2012; revised speed known as tip jets have been identified near Cape Farewell, Greenland's southernmost point during the boreal winter. In particular we show that tips jets character- ized by enhanced northeasterly

  2. ENGINEERING.com EngTips Forums TekTips Forums LoginRegister 3D Printing

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    ENGINEERING.com EngTips Forums TekTips Forums LoginRegister Home Videos Jobs Games 3D Printing YouTube Facebook Twitter Sections 3D Printing Design Software Designer Edge Education Electronics

  3. Atmospheric deposition of ^Be by rain events, in central Argentina

    E-Print Network [OSTI]

    Nacional de San Luis, Universidad

    Atmospheric deposition of ^Be by rain events, in central Argentina Juri Ayub, J. , Di Gregorio, B Aplicada San Luis. UniversidadNacional de San Luis - CONICET. Ejercito de los Andes 950. Argentina. 2 Buenos Aires, Argentina 3. Escuela de Cienciay Tecnologia, Universidad Nacional de San Martin. Martin de

  4. The Acid Rain Program: What it Means to Mountain Streams

    E-Print Network [OSTI]

    Lawrence, Deborah

    ://www.epa.gov/airtrends/aqtrends.html #12;5 Title IV - Acid Rain Program · Power Sector Cap & Emission Trading Program for SO2 · 8) & Emission Trading ­ Title V ­ Permits ­ Title VI ­ Stratospheric Ozone 1http) · Environmental Monitoring #12;6 Recent Programs · NOx Budget Trading Program (NBP) 2000 · Ozone season NOx Cap

  5. Water and Energy Savings, and Carbon Emission Reductions From Rain Water

    E-Print Network [OSTI]

    Das, Suman

    Water and Energy Savings, and Carbon Emission Reductions From Rain Water Harvesting, Combined Heat Infrastructure Ecology Decentralized Water Resource Development: Low Impact Development (LID) Decentralized Energy Production: Combined Heat and Power (CHP) Policies for Adoption of Rain Water Harvesting

  6. P2 Tips that Save Energy 

    E-Print Network [OSTI]

    Ferland, K.

    1998-01-01

    Resource Conservation Commission P2 Tips that save' Energy Pollution Prevention Texas Law States Pollution Prevention = Source Reduction and Waste Minimization Texas Natural Resource Conservation Commission Kathey Ferland Pollution Prevention... & Conservation Manager 512/239-3177 Email: kferland@tnrcc.state.tLus Technical Assistance: 512/239-3100 bttp:/Iwww.tnrcc.state.tLuslexecloppr/ppc_sec.btml E.1 Pollution Prevention Saves Money Reduced Costs Waste Hierarchy TNRCC - Office of Pollution...

  7. Tips: Booklet Distribution | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobsMotionHeatEnergy Solar Training for Veterans to aTips

  8. Tips: Renewable Energy | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobsMotionHeatEnergy Solar Training for VeteransRenewable Energy Tips:

  9. Observations of Precipitation Size and Fall Speed Characteristics within Coexisting Rain and Wet Snow

    E-Print Network [OSTI]

    Yuter, Sandra

    Snow SANDRA E. YUTER Department of Marine, Earth, and Atmospheric Sciences, North Carolina State are compared among samples obtained in mixed precipitation (rain and wet snow) and rain in the Oregon Cascade Mountains and in dry snow in the Rocky Mountains of Colorado. Coexisting rain and snow particles

  10. Photometric Model of a Rain Drop Kshitiz Garg and Shree K. Nayar

    E-Print Network [OSTI]

    Nayar, Shree K.

    conditions such as haze and fog, rain drops are large and visible to the naked eye. Each drop refracts and photometric models show that each rain drop behaves like a wide-angle lens that redirects light from a large of rain is highly complex. Unlike the particles that cause other weather conditions such as haze and fog

  11. Aerosol control on depth of warm rain in convective clouds Mahen Konwar,1

    E-Print Network [OSTI]

    Daniel, Rosenfeld

    Aerosol control on depth of warm rain in convective clouds Mahen Konwar,1 R. S. Maheskumar,1 J. R effective radius (re) increased with distance above cloud base (D). Warm rain became detectable, i.e., rain water content >0.01 g/Kg, at the tops of growing convective clouds when re exceeded 12 mm. The re

  12. Rain-induced subsurface airflow and Lisse effect Haipeng Guo,1

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    is low, and the maximum water-level rise is less than the maximum air pressure induced by rain and the water table depth. Citation: Guo, H., J. J. Jiao, and E. P. Weeks (2008), Rain-induced subsurface] Water table fluctuation may induce subsurface airflow [Jiao and Li, 2004] and airflow caused by rain

  13. RAIN AND WIND ESTIMATION FROM SEAWINDS IN HURRICANES AT ULTRA HIGH RESOLUTION

    E-Print Network [OSTI]

    Long, David G.

    RAIN AND WIND ESTIMATION FROM SEAWINDS IN HURRICANES AT ULTRA HIGH RESOLUTION Brent A. Williams method for estimating wind and rain in hurricanes from SeaWinds at ultra-high resolution is developed. We use a hurricane model to generate prior distributions for the wind speed, wind di- rection, and rain

  14. An iterative process for international negociations on acid rain in Northern Europe

    E-Print Network [OSTI]

    Toint, Philippe

    An iterative process for international negociations on acid rain in Northern Europe using a general 138.48.4.14) #12; An iterative process for international negotiations on acid rain in Northern Europe transboundary pollution problem related to acid rain in Northern Europe. This simulation shows the need

  15. Composite turbine bucket assembly

    DOE Patents [OSTI]

    Liotta, Gary Charles; Garcia-Crespo, Andres

    2014-05-20

    A composite turbine blade assembly includes a ceramic blade including an airfoil portion, a shank portion and an attachment portion; and a transition assembly adapted to attach the ceramic blade to a turbine disk or rotor, the transition assembly including first and second transition components clamped together, trapping said ceramic airfoil therebetween. Interior surfaces of the first and second transition portions are formed to mate with the shank portion and the attachment portion of the ceramic blade, and exterior surfaces of said first and second transition components are formed to include an attachment feature enabling the transition assembly to be attached to the turbine rotor or disk.

  16. File:Tip-top-tip-speed-teacher.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New Pages RecentTempCampApplicationWorksheet 2011.pdf Jump to:Tip-top-tip-speed-teacher.pdf

  17. A General Systems Theory for Rain Formation in Warm Clouds

    E-Print Network [OSTI]

    A. M. Selvam

    2014-08-15

    A cumulus cloud model which can explain the observed characteristics of warm rain formation in monsoon clouds is presented. The model is based on classical statistical physical concepts and satisfies the principle of maximum entropy production. Atmospheric flows exhibit selfsimilar fractal fluctuations that are ubiquitous to all dynamical systems in nature, such as physical, chemical, social, etc and are characterized by inverse power law form for power (eddy energy) spectrum signifying long-range space-time correlations. A general systems theory model for atmospheric flows developed by the author is based on the concept that the large eddy energy is the integrated mean of enclosed turbulent (small scale) eddies. This model gives scale-free universal governing equations for cloud growth processes. The model predicted cloud parameters are in agreement with reported observations, in particular, the cloud dropsize distribution. Rain formation can occur in warm clouds within 30minutes lifetime under favourable conditions of moisture supply in the environment.

  18. Cometary panspermia explains the red rain of Kerala

    E-Print Network [OSTI]

    Godfrey Louis; A. Santhosh Kumar

    2003-10-05

    Red coloured rain occurred in many places of Kerala in India during July to September 2001 due to the mixing of huge quantity of microscopic red cells in the rainwater. Considering its correlation with a meteor airbust event, this phenomenon raised an extraordinary question whether the cells are extraterrestrial. Here we show how the observed features of the red rain phenomenon can be explained by considering the fragmentation and atmospheric disintegration of a fragile cometary body that presumably contains a dense collection of red cells. Slow settling of cells in the stratosphere explains the continuation of the phenomenon for two months. The red cells under study appear to be the resting spores of an extremophilic microorganism. Possible presence of these cells in the interstellar clouds is speculated from its similarity in UV absorption with the 217.5 nm UV extinction feature of interstellar clouds.

  19. 1984 issues: gas decontrol, energy tax, acid rain

    SciTech Connect (OSTI)

    Betts, M.

    1983-12-01

    Energy analysts predict that Congress will propose a limited natural gas deregulation bill, an energy tax to offset budget deficits, and acid rain legislation that will focus on scrubber requirements for boilers. Politics will play an important role in whether legislation materializes since Democrats generally favor federal conservation programs and Republicans want to speed up deregulation. The November election will indicate which direction Congress will lean. (DCK)

  20. Rains County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergy Marketing Corp Jump to: navigation,Rainier,Rains

  1. Runoff water quality of reclaimed mine spoil in the post oak savannah of Texas 

    E-Print Network [OSTI]

    Trouart, Joel Elizabeth

    1989-01-01

    samples were thawed, filtered and analyzed for nitrite and nitrate using diazotization and cadmium reduction techniques with an autoanalyzer (APHA 1976). Rainfall, temperature, and humidity were continuously monitored using a tipping bucket rain gauge... simulator. banality and quantity of runoff were determined for each plot. Parameters analyzed included: settleable solids, total filterable solids, sediment production, infiltration rate, nitrites, nitrates, total iron and total manganese. The greatest...

  2. Tips: Heating and Cooling | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofThe InsideDepartmentThrift SavingsTips:

  3. Tips: Renewable Energy | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofTheLaundry Tips: Laundry Save energy

  4. Tips: Smart Appliances | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofTheLaundry Tips: Laundry SaveSealing

  5. Tips: Water Heating | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofTheLaundry Tips: LaundryWater Heating

  6. Tipping Point Renewable Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)Open EnergyTinox Jump to: navigation, searchTipping Point

  7. Turbine blade tip gap reduction system

    DOE Patents [OSTI]

    Diakunchak, Ihor S.

    2012-09-11

    A turbine blade sealing system for reducing a gap between a tip of a turbine blade and a stationary shroud of a turbine engine. The sealing system includes a plurality of flexible seal strips extending from a pressure side of a turbine blade generally orthogonal to the turbine blade. During operation of the turbine engine, the flexible seal strips flex radially outward extending towards the stationary shroud of the turbine engine, thereby reducing the leakage of air past the turbine blades and increasing the efficiency of the turbine engine.

  8. Tip Sheets by System | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings for Specific2HeldTidalTimothy Runyon AboutTip

  9. Tips: Kitchen Appliances | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 Timeline of Events: 1938-1950Insulation Tips:Kitchen

  10. Tips For Getting Hired | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterFinancialInvestingRenewableTeach and Learn5 BudgetHistory »J.Tips

  11. Neutron Reference Benchmark Field Specification: ACRR 44 Inch Lead-Boron (LB44) Bucket Environment (ACRR-LB44-CC-32-CL).

    SciTech Connect (OSTI)

    Vega, Richard Manuel; Parma, Edward J.; Griffin, Patrick J.; Vehar, David W.

    2015-07-01

    This report was put together to support the International Atomic Energy Agency (IAEA) REAL- 2016 activity to validate the dosimetry community’s ability to use a consistent set of activation data and to derive consistent spectral characterizations. The report captures details of integral measurements taken in the Annular Core Research Reactor (ACRR) central cavity with the 44 inch Lead-Boron (LB44) bucket, reference neutron benchmark field. The field is described and an “a priori” calculated neutron spectrum is reported, based on MCNP6 calculations, and a subject matter expert (SME) based covariance matrix is given for this “a priori” spectrum. The results of 31 integral dosimetry measurements in the neutron field are reported.

  12. Summer rain pulse size and rainwater uptake by three dominant desert plants in a desertified grassland ecosystem in northwestern China

    E-Print Network [OSTI]

    water sources derived from small (rain events, A. ordosia took advantage of deeper soil waterSummer rain pulse size and rainwater uptake by three dominant desert plants in a desertified composition, Rain pulse size, Summer precipitation Abstract To examine the different effects of rain pulse

  13. #tipsEnergy: Weatherizing Your Home for Fall

    Broader source: Energy.gov [DOE]

    With the start of colder weather, we are sharing fall energy-saving tips that will help you save money and stay comfortable.

  14. 5 Checks & 5 Tips for INCITE | Argonne Leadership Computing Facility

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

    Science at ALCF Allocation Programs INCITE Program 5 Checks & 5 Tips for INCITE Mira Computational Readiness Assessment ALCC Program Director's Discretionary (DD) Program Early...

  15. Energy Savers Tips on Saving Energy& Money at Home

    SciTech Connect (OSTI)

    Not Available

    2003-06-01

    Provides consumers with home energy and money savings tips such as insulation, weatherization, heating, cooling, water heating, energy efficient windows, landscaping, lighting, and energy efficient appliances

  16. Return Condensate to the Boiler - Steam Tip Sheet #8

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet on returning condensate to boilers provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  17. Fermilab Today - Safety Tip of the Week Archive

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

    4 December 20, 2004 Winter Sun Winter Sun December 13, 2004 Winter Slips Safety Tip December 6, 2004 Winter Cornering Winter Driving' November 29, 2004 SAFER attentiveness November...

  18. Energy Savers: Tips on Saving Money & Energy at Home

    SciTech Connect (OSTI)

    2014-05-01

    Provides consumers with home energy and money savings tips such as insulation, weatherization, heating, cooling, water heating, energy efficient windows, landscaping, lighting, and energy efficient appliances.

  19. Energy Savers: Tips on Saving Money & Energy at Home

    SciTech Connect (OSTI)

    2011-12-01

    Provides consumers with home energy and money savings tips such as insulation, weatherization, heating, cooling, water heating, energy efficient windows, landscaping, lighting, and energy efficient appliances.

  20. Method of cooling gas only nozzle fuel tip

    DOE Patents [OSTI]

    Bechtel, William Theodore (Scotia, NY); Fitts, David Orus (Ballston Spa, NY); DeLeonardo, Guy Wayne (Glenville, NY)

    2002-01-01

    A diffusion flame nozzle gas tip is provided to convert a dual fuel nozzle to a gas only nozzle. The nozle tip diverts compressor discharge air from the passage feeding the diffusion nozzle air swirl vanes to a region vacated by removal of the dual fuel components, so that the diverted compressor discharge air can flow to and through effusion holes in the end cap plate of the nozzle tip. In a preferred embodiment, the nozzle gas tip defines a cavity for receiving the compressor discharge air from a peripheral passage of the nozzle for flow through the effusion openings defined in the end cap plate.

  1. Tips on How to Write Theoretical Papers What is a why-question?

    E-Print Network [OSTI]

    Roberts, Carl W.

    to its temperature, water in the atmosphere condenses. Rain is this condensed water.) Note that inductive world, it seems silly to speculate about the reason why water may have decided to become rain. Yet A is the case. That is, the explanation proceeds from conclusion to assumption(s). (E.g., Why does it rain? Rain

  2. Light rain events change over North America, Europe and Asia for 1973-2009

    SciTech Connect (OSTI)

    Qian, Yun; Gong, Daoyi; Leung, Lai-Yung R.

    2010-10-28

    Long-term daily precipitation data from NCDC are used to investigate the changes of light rain events from 1973-2009 over North America, Europe and Asia. Results reveal that the trend of light rain events presents a remarkably diverse feature in different regions, while an overall decrease trend can be found over the continents in northern hemisphere. In North America, most of stations show a decrease trend for light rain on the annual basis but a decrease trend can also be found for moderate and heavy rain. The opposite trends are observed over the stations in Europe and the trend of light rain is not significant when averaged for all the stations. In Asia, especially East Asia, the light rain days show an overwhelming decrease trend with high spatial coherency. Meanwhile the moderate and heavy rain events (> 10 mm/day) have increased, suggesting a remarkable shift of precipitation from light to heavy rain in East Asia. While both the warming at a global scale and increased atmospheric aerosols due to air pollution at a regional scale (e.g. East Asia) may have affected the light rain changes, it remains a challenging task to quantitatively detect and separate the cause of light rain changes in different regions. ?

  3. Preheated Combustion Air (International Fact Sheet), Energy Tips-Process Heating, Process Heating Tip Sheet #1c

    SciTech Connect (OSTI)

    Not Available

    2010-10-01

    This English/Chinese international tip sheet provides information for optimizing industrial process heating systems and includes measurements in metric units.

  4. Rain or Shine: We Cycle for Science | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report Appendices |ProjectKnow Your PowerWeatherize »Rain or Shine:

  5. Test Anxiety Tips to Ease Your Test Anxiety

    E-Print Network [OSTI]

    Kunkle, Tom

    Test Anxiety Tips to Ease Your Test Anxiety Adapted from: Study Guides and Strategies website, Overcoming test anxiety Test taking can be overwhelming and can cause a lot of anxiety. Try these tips to ease your anxiety through the testing process! Before Approach the exam with confidence Be prepared

  6. CBE Lab Tips **How to clean a balance**

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    CBE Lab Tips **How to clean a balance** Proper cleaning and maintenance of our analytical balances, although it appears there was an attempt to clean the surface, there is still ample residue on the balance. Follow these tips: · Use one of the small balance brushes to lightly sweep residue from the balance

  7. Policy and Procedure Writing Tips University Policy Website

    E-Print Network [OSTI]

    Victoria, University of

    Policy and Procedure Writing Tips University Policy Website Policy and Procedure Writing Tips Updated May 2009 Page 1 of 2 · Differentiate between policies and procedures. o University Policies review and approval for policy issuance and revision. o University Procedures are the processes

  8. March 26, 2013 IT Service Manager Tips & Tricks

    E-Print Network [OSTI]

    Ottino, Julio M.

    Manager Archive. 3. Enter terms and values that reference your ticket (e.g. Interaction ID, Incident ID home page Tip 5: Use Global Issues only for P1 and P2 level incidents Tip 6: Search archived HP Service-down select IT Service Manager. 5. Refine your search using keywords. * Use "AND" or "OR" when searching

  9. Automated Rain Sampler for Real time pH and Conductivity Measurements

    E-Print Network [OSTI]

    Weerasinghe, R; Jayananda, M K; Sonnadara, D U J

    2015-01-01

    To monitor the acidity of rain water in real time, a rain water sampling system was developed. The rain sampler detects the initial rain after a dry spell and collects a water sample. Before performing the measurements, the pH probe is calibrated using a standard buffer solution whereas the conductivity probe is calibrated using deionized water. After calibrating the probes the pH and the conductivity of the collected rain water sample are measured using the pH and the conductivity probe. Weather parameters such as air temperature, humidity and pressure are also recorded simultaneously. The pH and conductivity measurement data including weather parameters are transmitted to central station using a GSM modem for further analysis. The collected rain water sample is preserved at the remote monitoring station for post chemical analysis. A programmable logic controller controls the entire process.

  10. With Chest Waders, Hip Boots, Or Rain Gear R. O. Parker Jr.

    E-Print Network [OSTI]

    in addition to the boots and rain gear (fig. 1). FEET FIRST When you fall feet first into the water, airWith Chest Waders, Hip Boots, Or Rain Gear R. O. Parker Jr. Neither chest wade rs, hip boots, nor rain ge a r will cause you to drown if you don't panic . Wade rs, the m ost dreaded of the thre e, can

  11. Energy Saver Guide: Tips on Saving Money and Energy at Home ...

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

    Services Energy Saver Guide: Tips on Saving Money and Energy at Home Energy Saver Guide: Tips on Saving Money and Energy at Home Energy Saver Guide: Tips on Saving Money and...

  12. Energy Saver Guide: Tips on Saving Money and Energy at Home ...

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

    Saver Guide: Tips on Saving Money and Energy at Home Energy Saver Guide: Tips on Saving Money and Energy at Home June 17, 2015 - 9:16am Addthis Energy Saver Guide: Tips on Saving...

  13. Effect of thermal pole tip protrusion and disk roughness on slider disk contacts

    E-Print Network [OSTI]

    Xu, Jianfeng; Kiely, James D.; Hsia, Yiao-Tee; Talke, Frank E.

    2009-01-01

    A, Weng R, Li F (2004) Pole-tip protrusion effect on high1b, the protrusion of the pole tip is shown due to the J.can occur, resulting in pole tip damage and wear of the

  14. Microsoft PowerPoint - 16.0855_Raines Draft Rev 4

    Energy Savers [EERE]

    Management Update Project Management Update Bob Raines Director, Project Management Systems and Assessments * Everybody's Favorite Subject Cost Estimating * Cost Estimating * EVMS...

  15. MAC -OUTLOOK QUICK TIP REFERENCE GUIDE 1 Quick Tip Reference Guide | Swinburne University of Technology Version 1.0

    E-Print Network [OSTI]

    Liley, David

    MAC - OUTLOOK QUICK TIP REFERENCE GUIDE 1 Quick Tip Reference Guide | Swinburne University of Technology Version 1.0 Managing Your Emails Conversation View in Outlook 2011 1. Click Organize tab 2. Click. On the Outlook menu, click Preferences. 2. Under E-mail, click Signatures . 3. Click Default Signatures. 4. Under

  16. Acid rain control strategists overlook dust removal benefits

    SciTech Connect (OSTI)

    Not Available

    1989-09-01

    Various strategies for controlling acid rain by reducing SO{sub 2} from existing utilities have failed to take into account the incidental particulate removal abilities of SO{sub 2} scrubbers. This has resulted in over-estimating the costs of acid rain control by 25% or more. This oversight has also caused utilities to invest in preliminary engineering of precipitator upgrades which will never have to be made if scrubbers are installed. While it seems inexplicable that a factor of this importance could have been overlooked by the industry, it is because of the unique situation in old U.S. utility power plants. These plants have relatively inefficient particulate control equipment which is not subject to new source performance standards. New power plants incorporate highly efficient particulate control devices so the ability of the downstream scrubbers to remove dust is irrelevant. The very small amount of particulate entering the scrubber from a highly efficient precipitator could be offset by escaping sulfate particles from a poorly operated scrubber. So an informal guideline was established to indicate that the scrubber had no overall effect on particulate emissions. The industry has generalized upon this guideline when, in fact, it only applies to new plants. The McIlvaine Company in its FGD Knowledge Network has thoroughly documented evidence that SO{sub 2} scrubbers will remove as much as 95% of the particulate being emitted from the relatively low efficiency precipitators operating on the nations existing coal-fired power plants.

  17. Considerations When Selecting a Condensing Economizer - Steam Tip Sheet #26B

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet is part of a series of tip sheets on how to optimize an industrial steam system.

  18. Social Media and Messages That Matter: Top Tips and Tools Peer...

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

    Social Media and Messages That Matter: Top Tips and Tools Peer Exchange Call Social Media and Messages That Matter: Top Tips and Tools Peer Exchange Call July 9...

  19. Radiation characterization summary : ACRR 44-inch lead-boron bucket located in the central cavity on the 32-inch pedestal at the core centerline (ACRR-LB44-CC-32-cl).

    SciTech Connect (OSTI)

    Parma, Edward J.,; Quirk, Thomas J.; Lippert, Lance L.; Griffin, Patrick Joseph; Naranjo, Gerald E.; Luker, Spencer Michael

    2013-04-01

    This document presents the facility-recommended characterization of the neutron, prompt gamma-ray, and delayed gamma-ray radiation fields in the Annular Core Research Reactor (ACRR) for the 44-inch-long lead-boron bucket in the central cavity on the 32-inch pedestal at the core centerline. The designation for this environment is ACRR-LB44-CC-32-cl. The neutron, prompt gamma-ray, and delayed gamma-ray energy spectra are presented as well as radial and axial neutron and gamma-ray flux profiles within the experiment area of the bucket. Recommended constants are given to facilitate the conversion of various dosimetry readings into radiation metrics desired by experimenters. Representative pulse and steady-state operations are presented with conversion examples.

  20. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 45, NO. 3, MARCH 2007 621 A C-Band Wind/Rain Backscatter Model

    E-Print Network [OSTI]

    Long, David G.

    signature is altered by rain. Rain striking the water creates splash products including rings, stalksIEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 45, NO. 3, MARCH 2007 621 A C-Band Wind/Rain--With the confirmed evidence of rain surface pertur- bation in recent studies, the rain effects on C

  1. On the infiltration of rain water through the soil with runo# of the excess water

    E-Print Network [OSTI]

    Fasano, Antonio

    On the infiltration of rain water through the soil with runo# of the excess water Iacopo Borsi '' Viale Morgagni 67/A, 50134 Firenze, Italy Abstract This paper deals with the modelling of the rain water infiltration through the soil above the aquifer in case of runo# of the excess water. The main feature

  2. Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets

    E-Print Network [OSTI]

    Mudd, Simon Marius

    Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets David Jon by raindrop impacts. We use high-speed imaging of drop impacts on dry sand to describe the drop (2007), Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets, J

  3. Seasonal controls on the exchange of carbon and water in an Amazonian rain forest

    E-Print Network [OSTI]

    Saleska, Scott

    Seasonal controls on the exchange of carbon and water in an Amazonian rain forest Lucy R. Hutyra,1 controls on the exchange of carbon and water in an Amazonian rain forest, J. Geophys. Res., 112, G03008 response to climate and weather. This study presents 4 years of eddy covariance data for CO2 and water

  4. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Water Management through Rain Gardens

    E-Print Network [OSTI]

    (4m x 5m) and can hold vast amounts of water at any given time. The bowl shaped rain garden must is an important parameter since the soil used effects the water absorption ability of the rain garden. The optimalUBC Social Ecological Economic Development Studies (SEEDS) Student Report Water Management through

  5. The roles of cloud drop effective radius and LWP in determining rain properties in marine stratocumulus

    E-Print Network [OSTI]

    Daniel, Rosenfeld

    The roles of cloud drop effective radius and LWP in determining rain properties in marine that adding cloud condensation nuclei to marine stratocumulus can prevent their breakup from closed into open in terms of cloud drop effective radius (re). Rain is initiated when re near cloud top is around 12­14 mm

  6. File:Tip-top-tip-speed-lp-HS.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto ElectricMonasterwindCAESRAPID ToolkitTip Speed Lesson

  7. File:Tip-top-tip-speed-student-HS.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto ElectricMonasterwindCAESRAPID ToolkitTip Speed

  8. File:Tip-top-tip-speed-teacher-HS.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto ElectricMonasterwindCAESRAPID ToolkitTip

  9. TIPPING POINT (Synopsis) (Roy Thompson, Open Studies Summer Course, 2010)

    E-Print Network [OSTI]

    stations; followed by factory chimneys; yellow blotches on her brilliantly white skin; coal-burning; her tipping point from which recovery will be impossible. A worried look crosses Tabbris' face. Act III

  10. Cover Heated, Open Vessels - Steam Tip Sheet #19

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO steam tip sheet on covering heated, open vessels provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  11. Recover Heat from Boiler Blowdown - Steam Tip Sheet #10

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet on recovering heat from boiler blowdown provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  12. Minimize Boiler Short Cycling Losses - Steam Tip Sheet #16

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  13. Install and Automatic Blowdown Control System - Steam Tip Sheet #23

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO steam tip sheet on installing automatic blowdown controls provide how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  14. Minimize Boiler Short Cycling Losses - Steam Tip Sheet #16

    SciTech Connect (OSTI)

    2006-01-01

    This revised AMO tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  15. Tips: Natural Gas and Oil Heating Systems | Department of Energy

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

    Natural Gas and Oil Heating Systems Tips: Natural Gas and Oil Heating Systems July 27, 2014 - 5:41pm Addthis Install a new energy-efficient furnace to save money over the long...

  16. Smart, simple energy-saving tips to beat the heat

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

    Publications Tribal Affairs Newsroom Search News Articles... Search Smart, simple energy-saving tips to beat the heat 7292015 2:02 PM Tweet Page Content BPA and its electric...

  17. Active control of tip clearance flow in axial compressors

    E-Print Network [OSTI]

    Bae, Jinwoo W

    2001-01-01

    Control of compressor tip clearance flows is explored in a linear cascade using three types of fluidic actuators; Normal Synthetic Jet (NSJ; unsteady jet normal to the mean flow with zero net mass flux), Directed Synthetic ...

  18. Fermilab Today - Safety Tip of the Week Archive

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

    tips for avoiding injury during snow removal. Fitness - The frequency and severity of heart attacks peak in winter. If you are over 45 and sedentary, avoid shoveling unless you...

  19. PERFORMANCE MANAGEMENT TIP SHEET Performance Management for New Employees

    E-Print Network [OSTI]

    PERFORMANCE MANAGEMENT TIP SHEET Performance Management for New Employees NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION UNITED STATES DEPARTMENT OF COMMERCE Workforce Management Office Ready to Perform Management at NOAA Performance Management is the process used to communicate expectations, evaluate employee

  20. Entropic force of polymers on a cone tip

    E-Print Network [OSTI]

    Faghfoor Maghrebi, Mohammad

    We consider polymers attached to the tip of a cone, and the resulting force due to entropy loss on approaching a plate (or another cone). At separations shorter than the polymer radius of gyration Rg, the only relevant ...

  1. Fiscal 2016 New Year Requisition Tips Page 1 of 3 Last Updated 6/23/2015

    E-Print Network [OSTI]

    Foroosh, Hassan

    information, see the Addy Tip: Application of Freight Charges. #12;Fiscal 2016 New Year Requisition Tips PageFiscal 2016 New Year Requisition Tips Page 1 of 3 Last Updated 6/23/2015 Fiscal 2016 New Year Information & Requisitioning Tips Additional information is available for requesters and approvers in the New

  2. Replace Pressure-Reducing Valves with Backpressure Turbogenerators (International Fact Sheet), Energy Tips-Steam, Steam Tip Sheet #20c

    SciTech Connect (OSTI)

    Not Available

    2010-10-01

    This English/Chinese ITP steam tip sheet on replacing pressure-reducing valves provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  3. Summer rain pulse size and rainwater uptake by three dominant desert plants in a desertified grassland ecosystem in northwestern China

    E-Print Network [OSTI]

    Chen, Jiquan

    Summer rain pulse size and rainwater uptake by three dominant desert plants in a desertified composition, Rain pulse size, Summer precipitation Abstract To examine the different effects of rain pulse with different pulse sizes based on the changes in the hydrogen isotope ratios (dD) of their stem water 7 days

  4. Sharpening of field emitter tips using high-energy ions

    DOE Patents [OSTI]

    Musket, Ronald G. (Danville, CA)

    1999-11-30

    A process for sharpening arrays of field emitter tips of field emission cathodes, such as found in field-emission, flat-panel video displays. The process uses sputtering by high-energy (more than 30 keV) ions incident along or near the longitudinal axis of the field emitter to sharpen the emitter with a taper from the tip or top of the emitter down to the shank of the emitter. The process is particularly applicable to sharpening tips of emitters having cylindrical or similar (e.g., pyramidal) symmetry. The process will sharpen tips down to radii of less than 12 nm with an included angle of about 20 degrees. Because the ions are incident along or near the longitudinal axis of each emitter, the tips of gated arrays can be sharpened by high-energy ion beams rastered over the arrays using standard ion implantation equipment. While the process is particularly applicable for sharpening of arrays of field emitters in field-emission flat-panel displays, it can be effectively utilized in the fabrication of other vacuum microelectronic devices that rely on field emission of electrons.

  5. Effects of increasing tip velocity on wind turbine rotor design.

    SciTech Connect (OSTI)

    Resor, Brian Ray; Maniaci, David Charles; Berg, Jonathan Charles; Richards, Phillip William

    2014-05-01

    A reduction in cost of energy from wind is anticipated when maximum allowable tip velocity is allowed to increase. Rotor torque decreases as tip velocity increases and rotor size and power rating are held constant. Reduction in rotor torque yields a lighter weight gearbox, a decrease in the turbine cost, and an increase in the capacity for the turbine to deliver cost competitive electricity. The high speed rotor incurs costs attributable to rotor aero-acoustics and system loads. The increased loads of high speed rotors drive the sizing and cost of other components in the system. Rotor, drivetrain, and tower designs at 80 m/s maximum tip velocity and 100 m/s maximum tip velocity are created to quantify these effects. Component costs, annualized energy production, and cost of energy are computed for each design to quantify the change in overall cost of energy resulting from the increase in turbine tip velocity. High fidelity physics based models rather than cost and scaling models are used to perform the work. Results provide a quantitative assessment of anticipated costs and benefits for high speed rotors. Finally, important lessons regarding full system optimization of wind turbines are documented.

  6. In situ scanning tunneling microscope tip treatment device for spin polarization imaging

    DOE Patents [OSTI]

    Li, An-Ping [Oak Ridge, TN; Jianxing, Ma [Oak Ridge, TN; Shen, Jian [Knoxville, TN

    2008-04-22

    A tip treatment device for use in an ultrahigh vacuum in situ scanning tunneling microscope (STM). The device provides spin polarization functionality to new or existing variable temperature STM systems. The tip treatment device readily converts a conventional STM to a spin-polarized tip, and thereby converts a standard STM system into a spin-polarized STM system. The tip treatment device also has functions of tip cleaning and tip flashing a STM tip to high temperature (>2000.degree. C.) in an extremely localized fashion. Tip coating functions can also be carried out, providing the tip sharp end with monolayers of coating materials including magnetic films. The device is also fully compatible with ultrahigh vacuum sample transfer setups.

  7. Data Report: Meteorological and Evapotranspiration Data from Sagebrush and Pinyon Pine/Juniper Communities at Pahute Mesa, Nevada National Security Site, 2011-2012

    SciTech Connect (OSTI)

    Jasoni, Richard L [DRI; Larsen, Jessica D [DRI; Lyles, Brad F. [DRI; Healey, John M [DRI; Cooper, Clay A [DRI; Hershey, Ronald L [DRI; Lefebre, Karen J [DRI

    2013-04-01

    Pahute Mesa is a groundwater recharge area at the Nevada National Security Site. Because underground nuclear testing was conducted at Pahute Mesa, groundwater recharge may transport radionuclides from underground test sites downward to the water table; the amount of groundwater recharge is also an important component of contaminant transport models. To estimate the amount of groundwater recharge at Pahute Mesa, an INFIL3.0 recharge-runoff model is being developed. Two eddy covariance (EC) stations were installed on Pahute Mesa to estimate evapotranspiration (ET) to support the groundwater recharge modeling project. This data report describes the methods that were used to estimate ET and collect meteorological data. Evapotranspiration was estimated for two predominant plant communities on Pahute Mesa; one site was located in a sagebrush plant community, the other site in a pinyon pine/juniper community. Annual ET was estimated to be 310±13.9 mm for the sagebrush site and 347±15.9 mm for the pinyon pine/juniper site (March 26, 2011 to March 26, 2012). Annual precipitation measured with unheated tipping bucket rain gauges was 179 mm at the sagebrush site and 159 mm at the pinyon pine/juniper site. Annual precipitation measured with bulk precipitation gauges was 222 mm at the sagebrush site and 227 mm at the pinyon pine/juniper site (March 21, 2011 to March 28, 2012). A comparison of tipping bucket versus bulk precipitation data showed that total precipitation measured by the tipping bucket rain gauges was 17 to 20 percent lower than the bulk precipitation gauges. These differences were most likely the result of the unheated tipping bucket precipitation gauges not measuring frozen precipitation as accurately as the bulk precipitation gauges. In this one-year study, ET exceeded precipitation at both study sites because estimates of ET included precipitation that fell during the winter of 2010-2011 prior to EC instrumentation and the precipitation gauges started collecting data in March 2011.

  8. Suppression of rice methane emission by sulfate deposition in simulated acid rain

    E-Print Network [OSTI]

    Gauci, Vincent

    limitation had been lifted by the simulated acid rain S deposition. Citation: Gauci, V., N. B. Dise, G process and so the duration of paddy inundation and the employment of mid-season field drainage both

  9. Allowance trading activity and state regulatory rulings : evidence from the U.S. Acid Rain Program

    E-Print Network [OSTI]

    Bailey, Elizabeth M.

    1996-01-01

    The U.S. Acid Rain Program is one of the first, and by far the most extensive, applications of a market based approach to pollution control. From the beginning, there has been concern whether utilities would participate ...

  10. Environmental Externalities in Electric Power Markets: Acid Rain, Urban Ozone, and Climate Change

    Reports and Publications (EIA)

    1995-01-01

    This article discusses the emissions resulting from the generation of electricity by utilities and their role in contributing to the environmental problems of acid rain, urban ozone, and climate change.

  11. Allowance trading activity and state regulatory rulings : evidence from the U.S. Acid Rain Program

    E-Print Network [OSTI]

    Bailey, Elizabeth M.

    1998-01-01

    The U.S. Acid Rain Program is one of the first, and by far the most extensive, applications of a market based approach to pollution control. From the beginning, there has been concern whether utilities would participate ...

  12. Heat and moisture transfer through building envelope components subjected to outdoor weather conditions including rain

    SciTech Connect (OSTI)

    Jayamaha, S.E.G. [National Univ. of Singapore (Singapore). Dept. of Mechanical Engineering

    1997-05-01

    Singapore experiences a warm and humid climate with abundant rainfall during the entire year. Such conditions are typical of tropical climates where many of today`s metropolitan cities are situated. Rain has been found to affect the thermal performance of building components in two ways, namely, by cooling the surface during rain and thereafter by drying of the absorbed moisture after rain. However, existing software used for predicting the thermal performance of building components do not consider such effects and are therefore inadequate for accurate estimation of the thermal performance of building components in tropical climates. To overcome these limitations, this study was carried out to investigate the simultaneous heat and moisture flow through porous building materials exposed to outdoor conditions such as solar radiation and rain.

  13. Analysis of TRMM Precipitation Radar Algorithms and Rain over the Tropics and Southeast Texas 

    E-Print Network [OSTI]

    Funk, Aaron

    2013-12-10

    The Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) 2A23 algorithm classifies rain echo as stratiform or convective while the 2A25 algorithm corrects vertical profiles of radar reflectivity for attenuation ...

  14. Laser Guide Star Adaptive Optics without Tip-tilt

    E-Print Network [OSTI]

    R. Davies; S. Rabien; C. Lidman; M. Le Louarn; M. Kasper; N. M. Forster Schreiber; V. Roccatagliata; N. Ageorges; P. Amico; C. Dumas; F. Mannucci

    2008-01-24

    Adaptive optics (AO) systems allow a telescope to reach its diffraction limit at near infrared wavelengths. But to achieve this, a bright natural guide star (NGS) is needed for the wavefront sensing, severely limiting the fraction of the sky over which AO can be used. To some extent this can be overcome with a laser guide star (LGS). While the laser can be pointed anywhere in the sky, one still needs to have a natural star, albeit fainter, reasonably close to correct the image motion (tip-tilt) to which laser guide stars are insensitive. There are in fact many astronomical targets without suitable tip-tilt stars, but for which the enhanced resolution obtained with the Laser Guide Star Facility (LGSF) would still be very beneficial. This article explores what adaptive optics performance one might expect if one dispenses with the tip-tilt star, and in what situations this mode of observing might be needed.

  15. Ferroelectric Switching by the Grounded Scanning Probe Microscopy Tip

    SciTech Connect (OSTI)

    Ievlev, Anton; Morozovska, A. N.; Shur, Vladimir Ya.; Kalinin, Sergei V

    2015-01-01

    The process of polarization reversal by the tip of scanning probe microscope was intensively studied for last two decades. Number of the abnormal switching phenomena was reported by the scientific groups worldwide. In particularly it was experimentally and theoretically shown that slow dynamics of the surface screening controls kinetics of the ferroelectric switching, backswitching and relaxation and presence of the charges carriers on the sample surface and in the sample bulk significantly change polarization reversal dynamics. Here we experimentally demonstrated practical possibility of the history dependent polarization reversal by the grounded SPM tip. This phenomenon was attributed to induction of the slowly dissipating charges into the surface of the grounded tip that enables polarization reversal under the action of the produced electric field. Analytical and numerical electrostatic calculations allow additional insight into nontrivial abnormal switching phenomena reported earlier.

  16. Artificial ciliary bundles with nano fiber tip links

    E-Print Network [OSTI]

    Asadnia, Mohsen; Miao, Jianmin; Triantafyllou, Michael

    2015-01-01

    Mechanosensory ciliary bundles in fishes are the inspiration for carefully engineered artificial flow sensors. We report the development of a new class of ultrasensitive MEMS flow sensors that mimic the intricate morphology of the ciliary bundles, including the stereocilia, tip links, and the cupula, and thereby achieve threshold detection limits that match the biological example. An artificial ciliary bundle is achieved by fabricating closely-spaced arrays of polymer micro-pillars with gradiating heights. Tip links that form the fundamental sensing elements are realized through electrospinning aligned PVDF piezoelectric nano-fibers that link the distal tips of the polymer cilia. An optimized synthesis of hyaluronic acid-methacrylic anhydride hydrogel that results in properties close to the biological cupula, together with drop-casting method are used to form the artificial cupula that encapsulates the ciliary bundle. In testing, fluid drag force causes the ciliary bundle to slide, stretching the flexible nan...

  17. Integrated Title V/acid rain permits: Transitioning through initial permit issuance and reopenings

    SciTech Connect (OSTI)

    Bloomfield, C. [Environmental Protection Agency, San Francisco, CA (United States)

    1995-12-31

    Titles IV and V of the Clean Air Act Amendments of 1990 (Act or CAA) created two new stationary source permitting programs, one specific to acid rain (Title IV), and a second for operating permits in general (Title V). The Phase 2 portion of the acid rain program was designed to be implemented through the Title V operating permit program, thereby subjecting all Phase 2 acid rain sources to the requirements of Title V. Permits issued pursuant to Phase 2 of the acid rain program will be viewed as a self-contained portion of the Title V operating permit and will be governed by regulations promulgated under both Title IV and Title V. The requirements imposed by Title IV may not always be consistent with the broader operating permit program requirements of Title V, and when inconsistency occurs, the acid rain requirements will take precedence. This nonalignment will perhaps be most apparent during two stages of initial permitting: (1) the transition period following Title V program approval when permit application, issuance, and effective dates differ between the two programs, and (2) at the point when acid rain permits must be reopened to incorporate Phase 2 NO{sub x} requirements. This paper explores strategies for streamlining implementation of the two programs with particular focus on these two coordination issues.

  18. Morphology of rain water channelization in systematically varied model sandy soils

    E-Print Network [OSTI]

    Y. Wei; C. M. Cejas; R. Barrois; R. Dreyfus; D. J. Durian

    2014-03-13

    We visualize the formation of fingered flow in dry model sandy soils under different raining conditions using a quasi-2d experimental set-up, and systematically determine the impact of soil grain diameter and surface wetting property on water channelization phenomenon. The model sandy soils we use are random closely-packed glass beads with varied diameters and surface treatments. For hydrophilic sandy soils, our experiments show that rain water infiltrates into a shallow top layer of soil and creates a horizontal water wetting front that grows downward homogeneously until instabilities occur to form fingered flows. For hydrophobic sandy soils, in contrast, we observe that rain water ponds on the top of soil surface until the hydraulic pressure is strong enough to overcome the capillary repellency of soil and create narrow water channels that penetrate the soil packing. Varying the raindrop impinging speed has little influence on water channel formation. However, varying the rain rate causes significant changes in water infiltration depth, water channel width, and water channel separation. At a fixed raining condition, we combine the effects of grain diameter and surface hydrophobicity into a single parameter and determine its influence on water infiltration depth, water channel width, and water channel separation. We also demonstrate the efficiency of several soil water improvement methods that relate to rain water channelization phenomenon, including pre-wetting sandy soils at different level before rainfall, modifying soil surface flatness, and applying superabsorbent hydrogel particles as soil modifiers.

  19. Clean Firetube Boiler Waterside Heat Transfer Surfaces, Energy Tips: STEAM, Steam Tip Sheet #7 (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    A steam energy tip sheet for the Advanced Manufacturing Office (AMO). The prevention of scale formation in firetube boilers can result in substantial energy savings. Scale deposits occur when calcium, magnesium, and silica, commonly found in most water supplies, react to form a continuous layer of material on the waterside of the boiler heat exchange tubes. Scale creates a problem because it typically possesses a thermal conductivity, an order of magnitude less than the corresponding value for bare steel. Even thin layers of scale serve as an effective insulator and retard heat transfer. The result is overheating of boiler tube metal, tube failures, and loss of energy efficiency. Fuel consumption may increase by up to 5% in firetube boilers because of scale. The boilers steam production may be reduced if the firing rate cannot be increased to compensate for the decrease in combustion efficiency. Energy losses as a function of scale thickness and composition are given. Any scale in a boiler is undesirable. The best way to deal with scale is not to let it form in the first place. Prevent scale formation by: (1) Pretreating of boiler makeup water (using water softeners, demineralizers, and reverse osmosis to remove scale-forming minerals); (2) Injecting chemicals into the boiler feedwater; and (3) Adopting proper boiler blowdown practices.

  20. Global Warming 20 Years Later: Tipping Points Near

    E-Print Network [OSTI]

    Hansen, James E.

    Global Warming 20 Years Later: Tipping Points Near Jim Hansen 23 June 2008 National Press Club, and House Select Committee on Energy Independence & Global Warming Washington, DC #12;1988 Testimony Has Big Effects Did Not Emphasize That Global Warming Enhances Both Extremes of Water Cycle - More

  1. Mechanical Summer Tipping of Tart Cherry Charles D. Kesner

    E-Print Network [OSTI]

    1 Mechanical Summer Tipping of Tart Cherry Charles D. Kesner Professor Emeritus Department common mistakes I see is the tendency to cut too deeply. The standard timing for mechanical summer: Our data indicates that mechanical summer hedging of tart cherries 45 days after full bloom

  2. PROCESSING TIP . . . BACK TO BASICS: REVISITING BLOOD COLLECTION

    E-Print Network [OSTI]

    Navara, Kristen

    MAY 2009 PROCESSING TIP . . . BACK TO BASICS: REVISITING BLOOD COLLECTION Technological advances it is often a good idea to periodically step back from the small details and revisit the basics. One of these pollution prevention basics is blood collection. The potential impact of blood on poultry processing

  3. Climate Tipping Points* The Threat to the Planet

    E-Print Network [OSTI]

    Hansen, James E.

    Climate Tipping Points* The Threat to the Planet Jim Hansen 19 February 2008 Illinois Wesleyan/policymakers) 2. A Planetary Emergency - Climate Inertia Pipeline Effect - Positive Feedbacks Predominate 3. Good. Great Inertia of Systems - Climate: >½ Warming Still `in Pipeline' - Energy Infrastructure: Decades

  4. Study Tips for Mathematics Mathematics as a sport

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Study Tips for Mathematics Mathematics as a sport Imagine that you have an important soccer game. Imagine the perfect kick in great detail.) Doing well in Mathematics is very similar to doing well in any sport. If you know the mathematical rules, practise, and imagine succeeding you are on your way

  5. GAS EXPLORATION Winter 2006 GasTIPS 5

    E-Print Network [OSTI]

    Rubin, Yoram

    GAS EXPLORATION Winter 2006 · GasTIPS 5 T he prediction of reservoir parameters such as gas or oil, but is particularly challenging in the case of gas exploration. Current seismic imaging technol- ogy cannot accurately discriminate between economic and non-eco- nomic concentrations of gas. This is primarily because

  6. Updated 5/2/2011 Vehicle Title and Registration Tips

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    Updated 5/2/2011 Vehicle Title and Registration Tips To get a new vehicle title the following items attachments for examples) 1. Application for Certificate of Title for a Motor Vehicle - Must be filled out - The title must be signed by original owner - If the vehicle was purchased through a dealership it needs

  7. Want to Learn Simple Industrial Energy Efficiency Tips?

    E-Print Network [OSTI]

    Want to Learn Simple Industrial Energy Efficiency Tips? Attend a free workshop put can reduce energy usage. This program is valuable to all manufacturing segments. Friday, June 23, 2006 8 a.m. ­ 12 noon Xcel Energy's Technical Services Bldg 550 15th St - Denver, CO 80202 Conference

  8. Triathlon Training Tips Swim: don't get intimidated!

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    Triathlon Training Tips Triathlon Swim: don't get intimidated! The swimming leg of triathlons: Longest component in terms of distance To improve speed: o Incorporate spinning classes into your training this anaerobic exercise will help maximize your ability and execution Training: Use bike hill repeats o Know

  9. NERSC Users Learn Code Optimization Tips and Tricks at 1st Hackathon

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

    Users Learn Code Optimization Tips and Tricks at 1st Hackathon NERSC Users Learn Code Optimization Tips and Tricks at 1st Hackathon March 6, 2015 | Tags: Training A one-day...

  10. Hybrid near-field scanning optical microscopy tips for live cell measurements

    E-Print Network [OSTI]

    Kapkiai, Luka K.; Moore-Nichols, David; Carnell, Jonathan; Krogmeier, Jeffrey R.; Dunn, Robert C.

    2004-03-08

    atomic force microscopy cantilever. Imaging of fluorescent latex spheres suspended in an acetate matrix demonstrates the subdiffraction limited fluorescence and topography capabilities of the tips. The reduced spring constant of the hybrid tip is also...

  11. High-Resolution Computational and Experimental Study of Rotary-Wing Tip Vortex Formation

    E-Print Network [OSTI]

    Alonso, Juan J.

    flowfield. Secondary and tertiary vortices that result from crossflow separations near the blade tip crossflow separations near the tip surface [1,2]. As a consequence, secondary and tertiary vortical

  12. Radiation Characterization Summary: ACRR Polyethylene-Lead-Graphite (PLG) Bucket Located in the Central Cavity on the 32-Inch Pedestal at the Core Centerline (ACRR-PLG-CC-32-cl).

    SciTech Connect (OSTI)

    Parma, Edward J.,; Vehar, David W.; Lippert, Lance L.; Griffin, Patrick J.; Naranjo, Gerald E.; Luker, Spencer M.

    2015-06-01

    This document presents the facility-recommended characterization of the neutron, prompt gamma-ray, and delayed gamma-ray radiation fields in the Annular Core Research Reactor (ACRR) for the polyethylene-lead-graphite (PLG) bucket in the central cavity on the 32-inch pedestal at the core centerline. The designation for this environment is ACRR-PLG-CC-32-cl. The neutron, prompt gamma-ray, and delayed gamma-ray energy spectra, uncertainties, and covariance matrices are presented as well as radial and axial neutron and gamma-ray fluence profiles within the experiment area of the bucket. Recommended constants are given to facilitate the conversion of various dosimetry readings into radiation metrics desired by experimenters. Representative pulse operations are presented with conversion examples. Acknowledgements The authors wish to thank the Annular Core Research Reactor staff and the Radiation Metrology Laboratory staff for their support of this work. Also thanks to David Ames for his assistance in running MCNP on the Sandia parallel machines.

  13. Determining the Right Air Quality for Your Compressed Air System - Compressed Air Tip Sheet #5

    SciTech Connect (OSTI)

    2004-08-01

    BestPractices Program tip sheet discussing how to determine the right air quality for compressed air systems.

  14. Select an Energy-Efficient Centrifugal Pump - Pumping System Tip Sheet #3

    SciTech Connect (OSTI)

    2005-10-01

    BestPractices Program tip sheet discussing pumping system efficiency by selecting an energy-efficient centrifugal pump.

  15. Making the Most of your Suggestions and tips provided in this presentation

    E-Print Network [OSTI]

    Toronto, University of

    Resources. 18 #12;Daily Money Saving Tips · Go to discount stores ­ Such as No Frills, Fresh Co., Walmart

  16. SIMULATION OF TIP LEAKAGE FLOW AROUND PARTIAL SQUEALER RIMS IN AXIAL TURBINES

    E-Print Network [OSTI]

    Camci, Cengiz

    is to protect the blade tip and cooling system from smear damage. This is a way of obtaining tighter design visualizations in extremely small geometrical features encountered near blade tip sections. After describing the control of squealer rims are described in various planes parallel to the blade tip platform on which

  17. Wintertime Northern Bering Sea Tip Jets and their Impact on Oceanic Circulation

    E-Print Network [OSTI]

    Pickart, Robert S.

    Wintertime Northern Bering Sea Tip Jets and their Impact on Oceanic Circulation G, 12 #12; 2 Abstract: Low-level regions of high wind speed known as tip jets have been identified show that tips jets characterized by enhanced northeasterly winds occur in the vicinity of the two

  18. Effects of acid rain on apple tree productivity and fruit quality

    SciTech Connect (OSTI)

    Forsline, P.L.; Musselman, R.C.; Kender, W.J.; Dee, R.J.

    1983-01-01

    Mature 'McIntosh', 'Empire', and 'Golden Delicious' apple trees (Malus domestica Borkh.) were sprayed with simulated acid rain solutions in the pH range of 2.5 to 5.5 at full bloom in 1980 and in 1981. In 1981, weekly sprays were applied at pH 2.75 and pH 3.25. Necrotic lesions developed on apple petals at pH 2.5 with slight injury appearing at pH 3.0 and pH 3.5. Apple foliage had no acid rain lesions at any of the pH levels tested. Pollen germination was reduced at ph 2.5 in 'Empire'. Slight fruit set reduction at pH 2.5 was observed in 'McIntosh'. The incidence of russetting on 'Golden Delicious' fruits was ameliorated by the presence of rain-exclusion chambers but was not affected by acid rain. With season-long sprays at pH 2.75, there was a slight delay in maturity and lower weight of 'McIntosh' apples. Even at the lowest pH levels no detrimental effects of simulated acid rain were found on apple tree productivity and fruit quality when measured as fruit set, seed number per fruit, and fruit size and appearance.

  19. Gas field ion source current stability for trimer and single atom terminated W(111) tips

    SciTech Connect (OSTI)

    Urban, Radovan; Wolkow, Robert A. [Department of Physics, University of Alberta, Edmonton, Alberta T6G 2G7 (Canada); National Institute for Nanotechnology, National Research Council of Canada, Edmonton, Alberta T6G 2M9 (Canada); Pitters, Jason L. [National Institute for Nanotechnology, National Research Council of Canada, Edmonton, Alberta T6G 2M9 (Canada)

    2012-06-25

    Tungsten W(111) oriented trimer-terminated tips as well as single atom tips, fabricated by a gas and field assisted etching and evaporation process, were investigated with a view to scanning ion microscopy and ion beam writing applications. In particular, ion current stability was studied for helium and neon imaging gases. Large ion current fluctuations from individual atomic sites were observed when a trimer-terminated tip was used for the creation of neon ion beam. However, neon ion current was stable when a single atom tip was employed. No such current oscillations were observed for either a trimer or a single atom tip when imaged with helium.

  20. USING NEXRAD AND RAIN GAUGE PRECIPITATION DATA FOR HYDROLOGIC CALIBRATION OF SWAT IN A NORTHEASTERN WATERSHED

    SciTech Connect (OSTI)

    Sexton, Aisha M.; Sadeghi, Ali M.; Zhang, Xuesong; Srinivasan, Ragahvan; Shirmohammadi, Adel

    2010-05-10

    The value of watershed?scale, hydrologic and water quality models to ecosystem management is increasingly evident as more programs adopt these tools to evaluate the effectiveness of different management scenarios and their impact on the environment. Quality of precipitation data is critical for appropriate application of watershed models. In small watersheds, where no dense rain gauge network is available, modelers are faced with a dilemma to choose between different data sets. In this study, we used the German Branch (GB) watershed (~50 km2), which is included in the USDA Conservation Effects Assessment Project (CEAP), to examine the implications of using surface rain gauge and next?generation radar (NEXRAD) precipitation data sets on the performance of the Soil and Water Assessment Tool (SWAT). The GB watershed is located in the Coastal Plain of Maryland on the eastern shore of Chesapeake Bay. Stream flow estimation results using surface rain gauge data seem to indicate the importance of using rain gauges within the same direction as the storm pattern with respect to the watershed. In the absence of a spatially representative network of rain gauges within the watershed, NEXRAD data produced good estimates of stream flow at the outlet of the watershed. Three NEXRAD datasets, including (1)*non?corrected (NC), (2) bias?corrected (BC), and (3) inverse distance weighted (IDW) corrected NEXRAD data, were produced. Nash?Sutcliffe efficiency coefficients for daily stream flow simulation using these three NEXRAD data ranged from 0.46 to 0.58 during calibration and from 0.68 to 0.76 during validation. Overall, correcting NEXRAD with rain gauge data is promising to produce better hydrologic modeling results. Given the multiple precipitation datasets and corresponding simulations, we explored the combination of the multiple simulations using Bayesian model averaging.

  1. Photovoltaics R&D: At the Tipping Point

    SciTech Connect (OSTI)

    Kazmerski, L. L.

    2005-01-01

    '' . . . with robust investments in research and market development, the picture changes dramatically.'' Thus, the realigned U.S. Photovoltaic Industry Roadmap highlights R&D as critical to the tipping point that will make solar photovoltaics (PV) significant in the U.S. energy portfolio--part of a well-designed plan that would bring ''2034 expectations'' to reality by 2020. Technology improvement and introduction depend on key, focused, and pertinent research contributions that range from the most fundamental through the applied. In this paper, we underscore the successes and relevance of our current systems-driven PV R&D programs, which are built on integrated capabilities. These capabilities span atomic-level characterization, nanotechnology, new materials design, interface and device engineering, theoretical guidance and modeling, processing, measurements and analysis, and process integration. This presentation identifies and provides examples of critical research tipping points needed to foster now and near technologies (primarily crystalline silicon and thin films) and to introduce coming generations of solar PV that provide options to push us to the next performance levels (devices with ultra-high efficiencies and with ultra-low cost). The serious importance of science and creativity to U.S. PV technology ownership--and the increased focus to accelerate the time from laboratory discovery to industry adoption--are emphasized at this ''tipping point'' for solar PV.

  2. On the Differences in Storm Rainfall from Hurricanes Isidore and Lili. Part I: Satellite Observations and Rain Potential

    E-Print Network [OSTI]

    Jiang, Haiyan

    and freshwater flooding is the number one cause of death from hurricanes in the United States (Elsberry 2002 1998­2000, Lonfat et al. (2004) showed that the maximum azimuthally averaged rainfall rate is about 12. of rain (24 h) 1 ] and Tropical Storm Allison (2001, $6 billion in damages, 27 deaths, 35­40 in. of rain

  3. Network Coded Information Raining over High-Speed Rail through IEEE 802.16j

    E-Print Network [OSTI]

    Valaee, Shahrokh

    Network Coded Information Raining over High-Speed Rail through IEEE 802.16j Christopher Sue, Sameh propose a two-hop wireless network architecture for high-speed rail employing 802.16j. Due to its backward in high-speed rail communications and better exploit relay diversity. We refer to our proposed scheme

  4. Formation and evolution of coronal rain observed by SDO/AIA on February 22, 2012

    E-Print Network [OSTI]

    Vashalomidze, Z; Zaqarashvili, T V; Oliver, R; Shergelashvili, B; Ramishvili, G; Poedts, S; De Causmaecker, P

    2015-01-01

    The formation and dynamics of coronal rain are currently not fully understood. Coronal rain is the fall of cool and dense blobs formed by thermal instability in the solar corona towards the solar surface with acceleration smaller than gravitational free fall. We aim to study the observational evidence of the formation of coronal rain and to trace the detailed dynamics of individual blobs. We used time series of the 171 \\AA\\, and 304 \\AA\\, spectral lines obtained by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic Observatory (SDO) above active region AR 11420 on February 22, 2012. Observations show that a coronal loop disappeared in the 171 \\AA\\ channel and appeared in the 304 \\AA\\ line$\\text{}\\text{}$ more than one hour later, which indicates a rapid cooling of the coronal loop from 1 MK to 0.05 MK. An energy estimation shows that the radiation is higher than the heat input, which indicates so-called catastrophic cooling. The cooling was accompanied by the formation of coronal rain in the fo...

  5. Midweek increase in U.S. summer rain and storm heights suggests air pollution

    E-Print Network [OSTI]

    Daniel, Rosenfeld

    Midweek increase in U.S. summer rain and storm heights suggests air pollution invigorates air pollution suppresses cloud-drop coalescence and early rainout during the growth of thunderstorms explained by the difference in composition of aerosol pollution at that time. This ``weekend effect'' may

  6. Rain Forest Islands in the Chilean Semiarid Region: Fog-dependency,

    E-Print Network [OSTI]

    Rain Forest Islands in the Chilean Semiarid Region: Fog-dependency, Ecosystem Persistence and Tree that these forests persist as a result of fog-water inputs. If so, then because fog-water deposition is spatially by the direction of fog input should determine forest structure and tree regeneration patterns. To investigate

  7. WeatherJuly2015,Vol.70,No.7 Is there a Rhythm Of The Rain?

    E-Print Network [OSTI]

    Williams, Paul

    accessed through channels such as artists' websites and YouTube (our choice of data- base is discussed198198 Weather­July2015,Vol.70,No.7 Is there a Rhythm Of The Rain? An analysis of weather have ana- lysed how our environment has influenced music: Wagner (1972) looked at weather in classical

  8. Adaptive FIR Filtering of Range Sidelobes for Air and Spaceborne Rain Mapping Stephen P. Lohmeier

    E-Print Network [OSTI]

    Kansas, University of

    Adaptive FIR Filtering of Range Sidelobes for Air and Spaceborne Rain Mapping Stephen P. Lohmeier and Telecommunications Center Abstract ­ This paper describes an adaptive finite-impulse response (FIR) filteringB [1] sidelobe levels. Although others have used wavelets to achieve suppression [2]. To measure light

  9. A phase screen model for simulating numerically the propagation of a laser beam in rain

    SciTech Connect (OSTI)

    Lukin, I P; Rychkov, D S; Falits, A V [Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk (Russian Federation); Lai, Kin S; Liu, Min R [DSO National Laboratories 20 (Singapore)

    2009-09-30

    The method based on the generalisation of the phase screen method for a continuous random medium is proposed for simulating numerically the propagation of laser radiation in a turbulent atmosphere with precipitation. In the phase screen model for a discrete component of a heterogeneous 'air-rain droplet' medium, the amplitude screen describing the scattering of an optical field by discrete particles of the medium is replaced by an equivalent phase screen with a spectrum of the correlation function of the effective dielectric constant fluctuations that is similar to the spectrum of a discrete scattering component - water droplets in air. The 'turbulent' phase screen is constructed on the basis of the Kolmogorov model, while the 'rain' screen model utiises the exponential distribution of the number of rain drops with respect to their radii as a function of the rain intensity. Theresults of the numerical simulation are compared with the known theoretical estimates for a large-scale discrete scattering medium. (propagation of laser radiation in matter)

  10. Crowdsourcing, Climate Change and Student Science: The Community Collaborative Rain, Hail and Snow Network

    E-Print Network [OSTI]

    Stephens, Graeme L.

    it one of the most innovative citizen science programs in the nation. Students of all ages at over 100Crowdsourcing, Climate Change and Student Science: The Community Collaborative Rain, Hail and Snow: Dr. Nolan Doesken Address: Department of Atmospheric Science 1371 Campus Delivery Colorado State

  11. RADARSAT SCANSAR WIND RETRIEVAL AND RAIN EFFECTS ON SCANSAR MEASUREMENTS UNDER HURRICANE CONDITIONS

    E-Print Network [OSTI]

    Long, David G.

    RADARSAT SCANSAR WIND RETRIEVAL AND RAIN EFFECTS ON SCANSAR MEASUREMENTS UNDER HURRICANE CONDITIONS CB, Provo, Utah 84602 ABSTRACT RADARSAT-1 ScanSAR SWA images of Hurricane Katrina are used-band polarization ratio models have been proposed, none have been well verified in hurricane conditions. Although C

  12. HURRICANE IMAGING RADIOMETER WIND SPEED AND RAIN RATE RETRIEVAL: [PART-1] DEVELOPMENT OF AN IMPROVED OCEAN

    E-Print Network [OSTI]

    Ruf, Christopher

    HURRICANE IMAGING RADIOMETER WIND SPEED AND RAIN RATE RETRIEVAL: [PART-1] DEVELOPMENT U.S.A * selnimri@mail.ucf.edu 2 NOAA/AOML/Hurricane Research Division, Miami, Florida, USA 3 Space model has been developed to support the analysis and design of the new airborne Hurricane Imaging

  13. Atmospheric deposition of {sup 7}Be by rain events, incentral Argentina

    SciTech Connect (OSTI)

    Ayub, J. Juri; Velasco, H.; Rizzotto, M. [Grupo de Estudios Ambientales. Instituto de Matematica Aplicada San Luis. Universidad National de San Luis--CONICET. Ejercito de los Andes 950. Argentina (Argentina); Di Gregorio, D. E.; Huck, H. [Departamento de Fisica, Comision National de Energia Atomica, Av. Gral. Paz 1499, 1650 San Martin, Provincia de Buenos Aires (Argentina); Escuela de Ciencia y Tecnologia, Universidad National de San Martin. Martin de Irigoyen 3100, 1650 San Martin, Provincia de Buenos Aires, Argentina. (Argentina)

    2008-08-07

    Beryllium-7 is a natural radionuclide that enters into the ecosystems through wet and dry depositions and has numerous environmental applications in terrestrial and aquatic ecosystems. Atmospheric wet deposition of {sup 7}Be was measured in central Argentina. Rain traps were installed (1 m above ground) and individual rain events have been collected. Rain samples were filtered and analyzed by gamma spectrometry. The gamma counting was undertaken using a 40%-efficient p-type coaxial intrinsic high-purity natural germanium crystal built by Princeton Gamma-Tech. The cryostat was made from electroformed high-purity copper using ultralow-background technology. The detector was surrounded by 50 cm of lead bricks to provide shielding against radioactive background. The detector gamma efficiency was determined using a water solution with known amounts of chemical compounds containing long-lived naturally occurring radioisotopes, {sup 176}Lu, {sup 138}La and {sup 40}K. Due to the geometry of the sample and its position close to the detector, the efficiency points from the {sup 176}Lu decay, had to be corrected for summing effects. The measured samples were 400 ml in size and were counted curing one day. The {sup 7}Be detection limit for the present measurements was as low as 0.2 Bq l{sup -1}. Thirty two rain events were sampled and analyzed (November 2006-May 2007). The measured values show that the events corresponding to low rainfall (<20 mm) are characterized by significantly higher activity concentrations (Bq l{sup -1}). The activity concentration of each individual event varied from 0.8 to 3.5 Bq l{sup -1}, while precipitations varied between 4 and 70 mm. The integrated activity by event of {sup 7}Be was fitted with a model that takes into account the precipitation amount and the elapsed time between two rain events. The integrated activities calculated with this model show a good agreement with experimental values.

  14. Effects of self-assembled monolayer and PFPE lubricant on wear characteristics of flat silicon tips.

    SciTech Connect (OSTI)

    Kim, H. J.; Jang, C. E.; Kim, D. E.; Kim, Y. K.; Choa, S. H.; Hong, S.; Materials Science Division; Yonsei Univ.; Samsung Adv. Inst. Science and Technology; Seoul National Univ. of Technology

    2009-01-01

    The effects of self-assembled monolayer (SAM) and perfluoropolyether (PFPE) lubricant on the wear characteristics of flat silicon tips were investigated. The wear test consisted of sliding the silicon tips fabricated on a flat silicon specimen against SAM and PFPE (Z-tetraol) coated silicon (100) wafer. The tips were slid at a low speed for about 15 km under an applied load of 39.2 {micro}N. The wear volume of the tip was obtained by measuring the tip profile using an Atomic Force Microscope (AFM). It was found that the coatings were effective in reducing the wear of the tips by an order of magnitude from 10{sup -6} to 10{sup -7}.

  15. Tips: Saving Money on Gas | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofTheLaundry Tips: Laundry Save

  16. TipCard_Front_back_final_rev2.indd

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE- Non-ResidentialAlliantPGEDepartment of Energy < BackTimpage tip

  17. Tips: Energy-Efficient Roofs | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobsMotionHeatEnergy Solar Training for Veterans to aTipsEnergy-Efficient

  18. Tips for Renters and Property Owners | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of EnergyResearchers at theAugust 1, 2013the New Funding AugustTips for

  19. WATER RESOURCES RESEARCH, VOL. 25, NO. 3, PAGES 577-579, MARCH 1989 Comment on "Are Rain Rate Processes Self-Similar?"

    E-Print Network [OSTI]

    Lovejoy, Shaun

    WATER RESOURCES RESEARCH, VOL. 25, NO. 3, PAGES 577-579, MARCH 1989 Comment on "Are Rain Rate the properties of the rain field with those of its fluctu- ations in such a way that neither of their theorems are rele- vant to the problem of stochasticself-similar rain modeling. We would thereforelike to take

  20. Acute Increase in Hepatic Arterial Flow During TIPS Identified by Intravascular Flow Measurements

    SciTech Connect (OSTI)

    Radeleff, Boris, E-mail: Boris_Radeleff@med.uni-heidelberg.de; Sommer, Christof-Matthias; Heye, Tobias; Lopez-Benitez, Ruben [University of Heidelberg Medical Center, Department of Diagnostic Radiology (Germany); Sauer, Peter [University of Heidelberg Medical Center, Department of Internal Medicine IV, Gastroenterology, Hepatology, Infectious Diseases, and Intoxications (Germany); Schmidt, Jan [University of Heidelberg Medical Center, General, Visceral, and Accident Surgery (Germany); Kauczor, Haus-Ulrich; Richter, Goetz Martin [University of Heidelberg Medical Center, Department of Diagnostic Radiology (Germany)

    2009-01-15

    The purpose of this study was to investigate alterations of hepatic arterial flow during transjugular intrahepatic portosystemic stent shunt (TIPS) applying intravascular Doppler sonography. This prospective monocenter study included 25 patients with liver cirrhosis (alcohol induced [n = 19], chronic hepatitis associated [n = 3], primary biliary cirrhosis associated [n = 1], and cryptogenic [n = 2]) successfully treated with TIPS. All patients underwent intravascular hepatic arterial flow measurements during TIPS using an endoluminal flow sensor. The average arterial peak velocity (APV) and the maximum arterial peak velocity (MPV) were registered. Twenty-two patients (88%) showed increased APV, one patient (4%) showed unaffected APV, and two patients (8%) showed decreased APV after TIPS. The average portosystemic pressure gradient decreased significantly, from 22.0 {+-} 5.1 mmHg before TIPS to 11.0 {+-} 4.1 mmHg after TIPS (-50.0%; p < 0.0001). The average APV increased significantly, from 41.9 {+-} 17.8 cm/s before TIPS to 60.7 {+-} 19.0 cm/s after TIPS (+44.9%; p < 0.0001). The average MPV increased significantly, from 90.8 {+-} 31.7 cm/s before TIPS to 112.6 {+-} 34.9 cm/s after TIPS (+24.0%; p = 0.0002). These changes in perfusion set in within seconds after TIPS tract formation in all the patients with increased APV. We conclude that TIPS-induced portosystemic decompression leads to a significant increase in hepatic arterial flow. The changes occurred within seconds, suggesting a reflex-like mechanism.

  1. Earth Day Recap: Sharing Tips for Improving Your Home’s Energy Efficiency

    Broader source: Energy.gov [DOE]

    Looking for ways to save energy and money at home? Check out the tips and advice we shared on Earth Day.

  2. QCI Exam Test-Taking Tips from Community Housing Partners (CHP)

    Broader source: Energy.gov [DOE]

    This document contains a list of tips for taking the Quality Control Inspector (QCI) Home Energy Professional Certification Exam, provided by Community Housing Partners (CHP).

  3. Tip sheet: Expanded Library of Congress Call Number Classification system Call Number Subject Matter

    E-Print Network [OSTI]

    Kambhampati, Patanjali

    Tip sheet: Expanded Library of Congress Call Number Classification system Call Number Subject R: Medicine T: Technology U: Military Science Z: Bibliography. Library Science. Information

  4. #tipsEnergy: Saving on Home Heating Costs | Department of Energy

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

    Former Digital Communications Specialist, Office of Public Affairs tipsEnergy: Saving on Home Heating Costs A feature on the Energy Department's Twitter account,...

  5. Energy Savers---Tips on Saving Energy and Money at Home (Fifth Printing)

    SciTech Connect (OSTI)

    DOE Office of Building Technology, State and Community Programs

    2001-08-13

    Provides consumers with home energy and money savings tips such as insulation, weatherization, heating, cooling, water heating, energy efficient windows, landscaping, lighting, and energy efficient appliances.

  6. Consider Installing Turbulators on Two- and Three-Pass Firetube Boilers - Steam Tip Sheet #25

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet on installing turbulators on firetube boilers provides how-to advice for improving the system using low-cost, proven practices and technologies.

  7. Consider Installing Turbulators on Two- and Three-Pass Firetube Boilers - Steam Tip Sheet #25

    SciTech Connect (OSTI)

    None

    2006-01-01

    This revised AMO tip sheet on installing turbulators on firetube boilers provides how-to advice for improving the system using low-cost, proven practices and technologies.

  8. Basic Installation Guidelines & Instructions for your SkyJuice Rain Barrel 1. Your rain barrel must be placed on a surface that is flat and level. Use a spade to flatten the area for placement of the barrel.

    E-Print Network [OSTI]

    the barrel by the spigot. To maintain the tight connection, open the barrel and tighten the nut on the inside of dish soap to the rain barrel to stop the mosquitoes from laying eggs in the water. Dish soap

  9. Coronal rain in magnetic arcades: Rebound shocks, Limit cycles, and Shear flows

    E-Print Network [OSTI]

    Fang, X; Keppens, R; Van Doorsselaere, T

    2015-01-01

    We extend our earlier multidimensional, magnetohydrodynamic simulations of coronal rain occurring in magnetic arcades with higher resolution, grid-adaptive computations covering a much longer ($>6$ hour) timespan. We quantify how in-situ forming blob-like condensations grow along and across field lines and show that rain showers can occur in limit cycles, here demonstrated for the first time in 2.5D setups. We discuss dynamical, multi-dimensional aspects of the rebound shocks generated by the siphon inflows and quantify the thermodynamics of a prominence-corona-transition-region like structure surrounding the blobs. We point out the correlation between condensation rates and the cross-sectional size of loop systems where catastrophic cooling takes place. We also study the variations of the typical number density, kinetic energy and temperature while blobs descend, impact and sink into the transition region. In addition, we explain the mechanisms leading to concurrent upflows while the blobs descend. As a resu...

  10. Electric Utility Phase I Acid Rain Compliance Strategies for the Clean Air Act Amendments of 1990

    Reports and Publications (EIA)

    1994-01-01

    The Acid Rain Program is divided into two time periods; Phase I, from 1995 through 1999, and Phase II, starting in 2000. Phase I mostly affects power plants that are the largest sources of SO2 and NOx . Phase II affects virtually all electric power producers, including utilities and nonutilities. This report is a study of the effects of compliance with Phase I regulations on the costs and operations of electric utilities, but does not address any Phase II impacts.

  11. Effects of acid rain on apple tree productivity and fruit quality

    SciTech Connect (OSTI)

    Forsline, P.L.; Musselman, R.C.; Kender, W.J.; Dee, R.J.

    1983-01-01

    Mature McIntosh, Empire, and Golden Delicious apple trees (Malus domestica) were sprayed with simulated acid rain solutions in the pH range of 2.5 to 5.5 at full bloom in 1980 and 1981. In 1981, weekly sprays were applied at pH 2.75 and pH 3.25. Necrotic lesions developed on apple petals at pH 2.5 with slight injury appearing at pH 3.0 and 3.5. Apple foliage had no acid rain lesions at any of the pH levels tested. Pollen germination was reduced at pH 2.5 in Empire. Slight fruit set reduction at pH 2.5 was observed in McIntosh. Even at the lowest pH levels no detrimental effects of simulated acid rain were found on apple tree productivity and fruit quality when measured as fruit set, seed number per fruit, and fruit size and appearance.

  12. The red rain phenomenon of Kerala and its possible extraterrestrial origin

    E-Print Network [OSTI]

    Godfrey Louis; A. Santhosh Kumar

    2006-01-02

    A red rain phenomenon occurred in Kerala, India starting from 25th July 2001, in which the rainwater appeared coloured in various localized places that are spread over a few hundred kilometers in Kerala. Maximum cases were reported during the first 10 days and isolated cases were found to occur for about 2 months. The striking red colouration of the rainwater was found to be due to the suspension of microscopic red particles having the appearance of biological cells. These particles have no similarity with usual desert dust. An estimated minimum quantity of 50,000 kg of red particles has fallen from the sky through red rain. An analysis of this strange phenomenon further shows that the conventional atmospheric transport processes like dust storms etc. cannot explain this phenomenon. The electron microscopic study of the red particles shows fine cell structure indicating their biological cell like nature. EDAX analysis shows that the major elements present in these cell like particles are carbon and oxygen. Strangely, a test for DNA using Ethidium Bromide dye fluorescence technique indicates absence of DNA in these cells. In the context of a suspected link between a meteor airburst event and the red rain, the possibility for the extraterrestrial origin of these particles from cometary fragments is discussed.

  13. Rain water transport and storage in a model sandy soil with hydrogel particle additives

    E-Print Network [OSTI]

    Y. Wei; D. J. Durian

    2014-02-10

    We study rain water infiltration and drainage in a dry model sandy soil with superabsorbent hydrogel particle additives by measuring the mass of retained water for non-ponding rainfall using a self-built 3D laboratory set-up. In the pure model sandy soil, the retained water curve measurements indicate that instead of a stable horizontal wetting front that grows downward uniformly, a narrow fingered flow forms under the top layer of water-saturated soil. This rain water channelization phenomenon not only further reduces the available rain water in the plant root zone, but also affects the efficiency of soil additives, such as superabsorbent hydrogel particles. Our studies show that the shape of the retained water curve for a soil packing with hydrogel particle additives strongly depends on the location and the concentration of the hydrogel particles in the model sandy soil. By carefully choosing the particle size and distribution methods, we may use the swollen hydrogel particles to modify the soil pore structure, to clog or extend the water channels in sandy soils, or to build water reservoirs in the plant root zone.

  14. The Roles of Cloud Drop Effective Radius and LWP in Determining Rain Properties in Marine Stratocumulus

    SciTech Connect (OSTI)

    Rosenfeld, Daniel; Wang, Hailong; Rasch, Philip J.

    2012-07-04

    Numerical simulations described in previous studies showed that adding cloud condensation nuclei to marine stratocumulus can prevent their breakup from closed into open cells. Additional analyses of the same simulations show that the suppression of rain is well described in terms of cloud drop effective radius (re). Rain is initiated when re near cloud top is around 12-14 um. Cloud water starts to get depleted when column-maximum rain intensity (Rmax) exceeds 0.1 mm h-1. This happens when cloud-top re reaches 14 um. Rmax is mostly less than 0.1 mm h-1 at re<14 um, regardless of the cloud water path, but increases rapidly when re exceeds 14 um. This is in agreement with recent aircraft observations and theoretical observations in convective clouds so that the mechanism is not limited to describing marine stratocumulus. These results support the hypothesis that the onset of significant precipitation is determined by the number of nucleated cloud drops and the height (H) above cloud base within the cloud that is required for cloud drops to reach re of 14 um. In turn, this can explain the conditions for initiation of significant drizzle and opening of closed cells providing the basis for a simple parameterization for GCMs that unifies the representation of both precipitating and non-precipitating clouds as well as the transition between them. Furthermore, satellite global observations of cloud depth (from base to top), and cloud top re can be used to derive and validate this parameterization.

  15. Voluntary compliance with market-based environment poliy [sic] : evidence from the U.S. acid rain program

    E-Print Network [OSTI]

    Montero, Juan Pablo

    The U.S. acid rain program, Title IV of the 1990 Clean Air Act Amendments, is a pioneering experience in environmental regulation by setting a market for electric utility emissions of sulfur dioxide (SO2) and by including ...

  16. Fiber optic temperature sensor using a grating on an angled fiber tip 

    E-Print Network [OSTI]

    Varadarajan, Harini

    2000-01-01

    A fiber optic temperature sensor intended to sense temperatures up to 1400°C was investigated experimentally. A key element of the sensor is a grating on the 45°-angled tip of a single mode fiber. When light propagating in the fiber reaches the tip...

  17. Large-Eddy Simulation and Analysis of Tip-Clearance Flows in Turbomachinery Applications

    E-Print Network [OSTI]

    Mittal, Rajat

    on understanding the underlying mechanisms for low- pressure fluctuations and cavitation downstream of the tip In hydraulic turbomachines such as submarine propulsors and liquid fuel pumps, the existence of radial that cavitation is associated with low-pressure fluctuations downstream of the tip-gap, the underlying mechanisms

  18. Lesson 1--Welcome to Media-Smart Youth78 Tips For Media-Smart Parents

    E-Print Network [OSTI]

    Rau, Don C.

    Youth program, youth will bring home Tips for Media-Smart Parents handouts. These handouts foods. Here's how to put it into action at home: Learn about Media-Smart Youth by visiting http will bring home Tips for Media-Smart Parents. These handouts will highlight what they are learning about

  19. Field emission of individual carbon nanotube with in situ tip image and real work function

    E-Print Network [OSTI]

    Wang, Zhong L.

    Field emission of individual carbon nanotube with in situ tip image and real work function Zhi Xu August 2005; published online 10 October 2005 The field emission properties of individual multiwalled work functions at tips by the in situ transmission electron microscopy method. The field emission

  20. TIPS FOR TAKING MEDICINE SAFELY FROM THE CONNECTICUT POISON CONTROL CENTER

    E-Print Network [OSTI]

    Oliver, Douglas L.

    TIPS FOR TAKING MEDICINE SAFELY FROM THE CONNECTICUT POISON CONTROL CENTER Follow the 5 rights when ingestion, don't wait for symptoms to appear; call the Connecticut Poison Control Center at 1-800-222-1222. For more poison prevention tips go to the Connecticut Poison Control website at http

  1. Why Good Projects Go Bad: Managing Development Projects near Tipping Points Tim Taylor and David Ford

    E-Print Network [OSTI]

    Ford, David N.

    Why Good Projects Go Bad: Managing Development Projects near Tipping Points Tim Taylor and David: The evolution of three projects near the project tipping point. The initial scope was 100 work packages. Degrading project: FRW = 0.8 RES = 3 Improving project: FRW = 0.1 RES = 0.25 Stagnate project: FRW = 0.5 RES

  2. Low NOx nozzle tip for a pulverized solid fuel furnace

    DOE Patents [OSTI]

    Donais, Richard E; Hellewell, Todd D; Lewis, Robert D; Richards, Galen H; Towle, David P

    2014-04-22

    A nozzle tip [100] for a pulverized solid fuel pipe nozzle [200] of a pulverized solid fuel-fired furnace includes: a primary air shroud [120] having an inlet [102] and an outlet [104], wherein the inlet [102] receives a fuel flow [230]; and a flow splitter [180] disposed within the primary air shroud [120], wherein the flow splitter disperses particles in the fuel flow [230] to the outlet [104] to provide a fuel flow jet which reduces NOx in the pulverized solid fuel-fired furnace. In alternative embodiments, the flow splitter [180] may be wedge shaped and extend partially or entirely across the outlet [104]. In another alternative embodiment, flow splitter [180] may be moved forward toward the inlet [102] to create a recessed design.

  3. Updated June 8, 2015 CAP'S TOP TEN LIST OF TIPS FOR PERSONNEL FILES FOR CHAIRS AND DEANS

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    D and MA advisees. Provide context, such as standard teaching load, course release, and buyouts. TIP FIVE

  4. Effect of Tip-Speed Constraints on the Optimized Design of a Wind Turbine

    SciTech Connect (OSTI)

    Dykes, K.; Resor, B.; Platt, A.; Guo, Y.; Ning, A.; King, R.; Parsons, T.; Petch, D.; Veers, P.

    2014-10-01

    This study investigates the effect of tip-velocity constraints on system levelized cost of energy (LCOE). The results indicate that a change in maximum tip speed from 80 to 100~m/s could produce a 32% decrease in gearbox weight (a 33% reduction in cost) which would result in an overall reduction of 1%-9% in system LCOE depending on the design approach. Three 100~m/s design cases were considered including a low tip-speed ratio/high-solidity rotor design, a high tip-speed ratio/ low-solidity rotor design, and finally a flexible blade design in which a high tip-speed ratio was used along with removing the tip deflection constraint on the rotor design. In all three cases, the significant reduction in gearbox weight caused by the higher tip-speed and lower overall gear ratio was counterbalanced by increased weights for the rotor and/or other drivetrain components and the tower. As a result, the increased costs of either the rotor or drivetrain components offset the overall reduction in turbine costs from down-sizing the gearbox. Other system costs were not significantly affected, whereas energy production was slightly reduced in the 100~m/s case low tip-speed ratio case and increased in the high tip-speed ratio case. This resulted in system cost of energy reductions moving from the 80~m/s design to the 100~m/s designs of 1.2% for the low tip-speed ratio, 4.6% for the high tip-speed ratio, and 9.5% for the final flexible case (the latter result is optimistic because the impact of deflection of the flexible blade on power production was not modeled). Overall, the results demonstrate that there is a trade-off in system design between the maximum tip velocity and the overall wind plant cost of energy, and there are many trade-offs within the overall system in designing a turbine for a high maximum tip velocity.

  5. Mixed-mode, high-cycle fatigue-crack growth thresholds in II. Quantication of crack-tip shielding

    E-Print Network [OSTI]

    Ritchie, Robert

    -tip shielding J.P. Campbell, R.O. Ritchie * Department of Materials Science and Mineral Engineering, University 2000; accepted 11 May 2000 Abstract The role of crack-tip shielding in in¯uencing mixed-mode (mode I crack-tip shielding with respect to both the mode I and mode II applied loading, enabling an estimation

  6. Cape Navarin Tip Jets and their Impact on4 Oceanic Circulation in the Gulf of Anadyr5

    E-Print Network [OSTI]

    Pickart, Robert S.

    1 2 3 Cape Navarin Tip Jets and their Impact on4 Oceanic Circulation Abstract: Low-level regions of high wind speed known as tip jets have been identified near Cape19 the boreal winter. In particular we show that tips jets characterized by either northeasterly or24

  7. Are TIPS Stent-Grafts a Contraindication for Future Liver Transplantation?

    SciTech Connect (OSTI)

    Maleux, Geert [University Hospitals, Leuven, Department of Interventional Radiology (Belgium); Pirenne, Jacques [University Hospitals, Leuven, Department of Transplantation Surgery (Belgium); Vaninbroukx, Johan [University Hospitals, Leuven, Department of Interventional Radiology (Belgium); Aerts, Raymond [University Hospitals, Leuven, Department of Transplantation Surgery (Belgium); Nevens, Frederik [University Hospitals, Leuven, Department of Hepatology (Belgium)

    2004-03-15

    Our purpose was to assess the feasibility of orthotopic liver transplantation (OLT) in patients priorly having undergone transjugular intrahepatic portosystemic shunt (TIPS) with an expanded tetrafluoroethylene (e-PTFE)-covered endoprosthesis. In 48 patients an e- PTFE-covered endoprosthesis was inserted to treat severe complications of portal hypertension. In 36 patients the endoprosthesis was inserted during TIPS creation (de novo TIPS); in the other 12 patients the endoprosthesis was placed to repermeabilize the previously created, but occluded bare stent (revision TIPS). Eight of them (5 de novo and 3 revision cases) later underwent an OLT. The hospital records of these patients were reviewed from initial admission, through TIPS, the pre-OLT period, and OLT to current postoperative status. Five de novo and 3 revision cases underwent OLT 4-279 days (mean delay: 80.8 days) after TIPS procedure. All OLT's were performed under veno-venous bypass surgery. De visu surgical inspection confirmed correct positioning of the fully patent stent graft, starting in the portal vein and ending at the junction of the hepatic vein to the inferior caval vein. No surgical difficulty was observed during proximal or distal clamping or during resection of the diseased liver. Correctly positioned e-PTFE-covered nitinol endoprostheses do not interfere with a later OLT and may not be considered as a contraindication in patients who need a TIPS as a bridge to OLT.

  8. A little rain doesn't fix it: Farmers and ranchers remain cautious as drought continues 

    E-Print Network [OSTI]

    Kalisek, Danielle

    2012-01-01

    and climate, along with the #17;#19;.#16;#25; billion of agricultural losses in #25;#24;#23;#23; plus crop, hay and livestock losses, leave the question: What is the outlook for agricultural crops, forage and livestock this year? Agricultural outlook ?It... rain doesn?t #30;x it continued Forage outlook #31;e drought took a toll on pastures, leaving most ranchers without any hay to cut and bare spots in the forage for livestock. ?A lot of our pastures, speci#28;cally hay meadows, were probably...

  9. Rain or Shine, Students Keep Their Race Cars Going - News Feature | NREL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts on GlobalRachel2 RadiometerRafael L. BrasRain or Shine,

  10. Controlling systems that drift through a tipping point

    SciTech Connect (OSTI)

    Nishikawa, Takashi; Ott, Edward

    2014-09-01

    Slow parameter drift is common in many systems (e.g., the amount of greenhouse gases in the terrestrial atmosphere is increasing). In such situations, the attractor on which the system trajectory lies can be destroyed, and the trajectory will then go to another attractor of the system. We consider the case where there are more than one of these possible final attractors, and we ask whether we can control the outcome (i.e., the attractor that ultimately captures the trajectory) using only small controlling perturbations. Specifically, we consider the problem of controlling a noisy system whose parameter slowly drifts through a saddle-node bifurcation taking place on a fractal boundary between the basins of multiple attractors. We show that, when the noise level is low, a small perturbation of size comparable to the noise amplitude applied at a single point in time can ensure that the system will evolve toward a target attracting state with high probability. For a range of noise levels, we find that the minimum size of perturbation required for control is much smaller within a time period that starts some time after the bifurcation, providing a “window of opportunity” for driving the system toward a desirable state. We refer to this procedure as tipping point control.

  11. Why high-frequency pulse tubes can be tipped

    SciTech Connect (OSTI)

    Swift, Gregory W092710; Backhaus, Scott N

    2010-01-01

    The typical low-frequency pulse-tube refrigerator loses significant cooling power when it is tipped with the pulse tube's cold end above its hot end, because natural convection in the pulse tube loads the cold heat exchanger. Yet most high-frequency pulse-tube refrigerators work well in any orientation with respect to gravity. In such a refrigerator, natural convection is suppressed by sufficiently fast velocity oscil1ations, via a nonlinear hydrodynamic effect that tends to align the density gradients in the pulse tube parallel to the oscillation direction. Since gravity's tendency to cause convection is only linear in the pulse tube's end-to-end temperature difference while the oscillation's tendency to align density gradients with oscillating velocity is nonlinear, it is easiest to suppress convection when the end-to-end temperature difference is largest. Simple experiments demonstrate this temperature dependence, the strong dependence on the oscillating velocity, and little dependence on the magnitude or phase of the oscillating pressure. In some circumstances in this apparatus, the suppression of convection is a hysteretic function of oscillating velocity. In some other circumstances, a time-dependent convective state seems more difficult to suppress.

  12. Precision tip-tilt-piston actuator that provides exact constraint

    DOE Patents [OSTI]

    Hale, Layton C. (Livermore, CA)

    1999-01-01

    A precision device which can precisely actuate three degrees of freedom of an optic mount, commonly referred to as tip, tilt, and piston. The device consists of three identical flexure mechanisms, an optic mount to be supported and positioned, a structure that supports the flexure mechanisms, and three commercially available linear actuators. The advantages of the precision device is in the arrangement of the constraints offered by the flexure mechanism and not in the particular design of the flexure mechanisms, as other types of mechanisms could be substituted. Each flexure mechanism constrains two degrees of freedom in the plane of the mechanisms and one direction is actuated. All other degrees of freedom are free to move within the range of flexure mechanisms. Typically, three flexure mechanisms are equally spaced in angle about to optic mount and arranged so that each actuated degree of freedom is perpendicular to the plane formed by the optic mount. This arrangement exactly constrains the optic mount and allows arbitrary actuated movement of the plane within the range of the flexure mechanisms. Each flexure mechanism provides a mechanical advantage, typically on the order of 5:1, between the commercially available actuator and the functional point on the optic mount. This improves resolution by the same ratio and stiffness by the square of the ratio.

  13. Rain-Induced Increase in Background Radiation Detected by Radiation Portal Monitors

    SciTech Connect (OSTI)

    Hausladen, Paul; Blessinger, Christopher S; Guzzardo, Tyler; Livesay, Jake

    2012-07-01

    A complete understanding of both the steady state and transient background measured by Radiation Portal Monitors (RPMs) is essential to predictable system performance, as well as maximization of detection sensitivity. To facilitate this understanding, a test bed for the study of natural background in RPMs has been established at the Oak Ridge National Laboratory. This work was performed in support of the Second Line of Defense Program's mission to detect the illicit movement of nuclear material. In the present work, transient increases in gamma ray counting rates in RPMs due to rain are investigated. The increase in background activity associated with rain, which has been well documented in the field of environmental radioactivity, originates from the atmospheric deposition of two radioactive daughters of radon-222, namely lead-214 and bismuth-214 (henceforth {sup 222}Rn, {sup 214}Pb and {sup 214}Bi). In this study, rainfall rates recorded by a co-located weather station are compared with RPM count rates and High Purity Germanium spectra. The data verifies these radionuclides are responsible for the dominant transient natural background fluctuations in RPMs. Effects on system performance and potential mitigation strategies are discussed.

  14. The future of emissions trading in light of the acid rain experience

    SciTech Connect (OSTI)

    McLean, B.J.; Rico, R.

    1995-12-31

    The idea of emissions trading was developed more than two decades ago by environmental economists eager to provide new ideas for how to improve the efficiency of environmental protection. However, early emissions trading efforts were built on the historical {open_quotes}command and control{close_quotes} infrastructure which has dominated U.S. environmental protection until today. The {open_quotes}command and control{close_quotes} model initially had advantages that were of a very pragmatic character: it assured large pollution reductions in a time when large, cheap reductions were available and necessary; and it did not require a sophisticated government infrastructure. Within the last five years, large-scale emission trading programs have been successfully designed and started that are fundamentally different from the earlier efforts, creating a new paradigm for environmental control just when our understanding of environmental problems is changing as well. The purpose of this paper is to focus on the largest national-scale program--the Acid Rain Program--and from that experience, forecast when emission trading programs may be headed based on our understanding of the factors currently influencing environmental management. The first section of this paper will briefly review the history of emissions trading programs, followed by a summary of the features of the Acid Rain Program, highlighting those features that distinguish it from previous efforts. The last section addresses the opportunities for emissions trading (and its probable future directions).

  15. The red rain phenomenon of Kerala and its possible extraterrestrial origin

    E-Print Network [OSTI]

    Louis, G; Louis, Godfrey

    2006-01-01

    A red rain phenomenon occurred in Kerala, India starting from 25th July 2001, in which the rainwater appeared coloured in various localized places that are spread over a few hundred kilometers in Kerala. Maximum cases were reported during the first 10 days and isolated cases were found to occur for about 2 months. The striking red colouration of the rainwater was found to be due to the suspension of microscopic red particles having the appearance of biological cells. These particles have no similarity with usual desert dust. An estimated minimum quantity of 50,000 kg of red particles has fallen from the sky through red rain. An analysis of this strange phenomenon further shows that the conventional atmospheric transport processes like dust storms etc. cannot explain this phenomenon. The electron microscopic study of the red particles shows fine cell structure indicating their biological cell like nature. EDAX analysis shows that the major elements present in these cell like particles are carbon and oxygen. St...

  16. Overview of the oxidation and scavenging characteristics of April rains (OSCAR) experiment

    SciTech Connect (OSTI)

    Easter, R.C.; Dana, M.T.; Thorp, J.M.; Busness, K.M.; Hales, J.M.; Raynor, G.S.; Benkovitz, C.M.; Tanner, R.L.; Shannon, J.D.

    1984-04-01

    The OSCAR (Oxidation and Scavenging Characteristics of April Rains) field experiment was conducted in April, 1981, as part of the MAP3S/RAINE program. The OSCAR study was designed to provide detailed characterizations of the physicochemical and dynamical features of selected cyclonic storm systems as they traversed the eastern U.S. Major experiment components included sequential precipitation chemistry measurements, aircraft measurements both in cloud and in clear air in storm inflow regions, surface-level air chemistry measurements, and supporting meteorological measurements. The precipitation chemisty network consisted of an intermediate-density network with 37 sampling sites covering the region from southern Ontario to Tennessee and from Illinois to New Hampshire, and a high-density network with 47 sampling sites located in a 100 by 100 km area in northeast Indiana. A total of four storm events were studied during the experiment. The report describes the design and operational aspects for the high-density and intermediate-density components of the experiment, and the composition of the integrated OSCAR data set which has been developed. A synoptic meteorological description of the four storm events studied during OSCAR is also provided. 17 references, 13 figures, 8 tables.

  17. Acid rain in China. Rapid industrialization has put citizens and ecosystems at risk

    SciTech Connect (OSTI)

    Thorjoern Larssen; Espen Lydersen; Dagang Tang [and others] [Norwegian Institute for Water Research and University of Oslo, Oslo (Norway)

    2006-01-15

    Acid rain emerged as an important environmental problem in China in the late 1970s. Many years of record economic growth have been accompanied by increased energy demand, greater coal combustion, and larger emissions of pollutants. As a result of significant emissions and subsequent deposition of sulfur, widespread acid rain is observed in southern and southwestern China. In fact, the deposition of sulfur is in some places higher than what was reported from the 'black triangle' in central Europe in the early 1980s. In addition, nitrogen is emitted from agriculture, power production, and a rapidly increasing number of cars. As a result, considerable deposition of pollutants occurs in forested areas previously thought to be pristine. Little is known about the effects of acid deposition on terrestrial and aquatic ecosystems in China. This article presents the current situation and what to expect in the future, largely on the basis of results from a five-year Chinese-Norwegian cooperative project. In the years ahead, new environmental challenges must be expected if proper countermeasures are not put into place. 31 refs., 4 figs.

  18. Modelling chemical degradation of concrete during leaching with rain and soil water types

    SciTech Connect (OSTI)

    Jacques, D., E-mail: djacques@sckcen.b [Belgian Nuclear Research Centre (SCK-CEN), Institute for Environment, Health, and Safety, Boeretang 200, B-2400 Mol (Belgium); Wang, L.; Martens, E.; Mallants, D. [Belgian Nuclear Research Centre (SCK-CEN), Institute for Environment, Health, and Safety, Boeretang 200, B-2400 Mol (Belgium)

    2010-08-15

    Percolation of external water through concrete results in the degradation of cement and changes the concrete pore water and solid phase composition. The assessment of long-term degradation of concrete is possible by means of model simulation. This paper describes simulations of chemical degradation of cement for different types of rain and soil water at an ambient earth surface temperature (10 {sup o}C). Rain and soil water types were derived using generic equations and measurement of atmospheric boundary conditions representative for North-Belgium. An up-to-date and consistent thermodynamic model is used to calculate the geochemical changes during chemical degradation of the concrete. A general pattern of four degradation stages was simulated with the third stage being the geochemically most complex stage involving reactions with calcium-silicate hydrates, AFm and AFt phases. Whereas the sequence of the dissolution reactions was relatively insensitive to the composition of the percolating water, the duration of the different reactions depends strongly on the percolating water composition. Major identified factors influencing the velocity of cement degradation are the effect of dry deposition and biological activity increasing the partial pressure of CO{sub 2(g)} in the soil air phase (and thus increasing the inorganic carbon content in the percolating water). Soil weathering processes have only a minor impact, at least for the relatively inert sandy material considered in this study.

  19. Effects of axial turbine tip shroud cavity flow on performance and durability

    E-Print Network [OSTI]

    Palmer, Timothy R. (Timothy Richard)

    2015-01-01

    Flow through tip shroud cavity in a representative axial turbine vane-rotor stage environment is assessed for its role in loss generation and turbine durability. Steady and unsteady three-dimensional flow computations, ...

  20. Effects of rotor tip blade loading variation on compressor stage performance

    E-Print Network [OSTI]

    Tiralap, Aniwat

    2015-01-01

    Changes in loss generation associated with altering the rotor tip loading of an embedded compressor stage is assessed. Steady and unsteady three-dimensional computations, complemented by control volume analyses, for varying ...

  1. Top 10 Tips to Save Energy and Money This Summer | Department...

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

    tips do you have for saving energy and money in the summer? Addthis Related Articles Use solar power to heat water and more Today's solar power is highly efficient. You can buy...

  2. Benchmark the Fuel Cost of Steam Generation - Steam Tip Sheet #15

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet on benchmarking the fuel cost of steam provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  3. A system for automatic positioning and alignment of fiber-tip interferometers 

    E-Print Network [OSTI]

    Jalan, Mahesh

    2004-11-15

    The research described in this thesis involves the design, development, and implementation of an automated positioning system for fiber-optic interferometric sensors. The Fiber-Tip Interferometer (FTI) is an essential component in the proven Thermo...

  4. Use Low-Grade Waste Steam to Power Absorption Chillers - Steam Tip Sheet #14

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet on waste steam to power absorption chillers provides how-to advice for improving the system using low-cost, proven practices and technologies.

  5. Ammonia Sensors Based on Doped-Sol-Gel-Tipped Optical Fibers for Catalyst System Diagnostics

    Broader source: Energy.gov [DOE]

    This work focuses on the development and application of optical fibers sensors tip-coated with sol gels that sequester a transducing material whose optical response is sensitive to NH3.

  6. Consider Installing High-Pressure Boilers with Backpressure Turbine-Generators - Steam Tip Sheet #22

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet on installing high-pressure boilers provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  7. Install Removable Insulation on Valves and Fittings - Steam Tip Sheet #17

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet on installing removable insulation on valves and fittings provides how-to advice for improving the system using low-cost, proven practices and technologies.

  8. Replace Pressure-Reducing Valves with Backpressure Turbogenerators - Steam Tip Sheet #20

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO steam tip sheet on replacing pressure-reducing valves provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  9. Consider Steam Turbine Drives for Rotating Equipment - Steam Tip Sheet #21

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet on steam turbine drives for rotating equipment provides how-to advice for improving the system using low-cost, proven practices and technologies.

  10. WEB DEVELOPMENT -Tips and Training Saving and Restoring Dreamweaver Site Definitions

    E-Print Network [OSTI]

    Pittendrigh, Barry

    WEB DEVELOPMENT - Tips and Training Saving and Restoring Dreamweaver Site Definitions Saving your and click "OK." 4. Save your profile on your H:/ drive so it will be backed up by the server

  11. Effects of rotor tip clearance on an embedded compressor stage performance

    E-Print Network [OSTI]

    Sakulkaew, Sitanun

    2012-01-01

    Compressor efficiency variation with rotor tip gap is assessed using numerical simulations on an embedded stage representative of that in a large industrial gas turbine with Reynolds number being approximately 2 x 106 to ...

  12. Three-dimensional rotating stall inception and effects of rotating tip clearance asymmetry in axial compressors

    E-Print Network [OSTI]

    Gordon, Kenneth A. (Kenneth Andrew), 1970-

    1999-01-01

    The effects of two types of flow nonuniformity on stall inception behavior were assessed with linearized stability analyses of two compressor flow models. Response to rotating tip clearance asymmetries induced by a whirling ...

  13. Catalyst-induced growth of carbon nanotubes on tips of cantilevers and nanowires

    DOE Patents [OSTI]

    Lee, James Weifu; Lowndes, Douglas H.; Merkulov, Vladimir I.; Eres, Gyula; Wei, Yayi; Greenbaum, Elias; Lee, Ida

    2004-06-29

    A method is described for catalyst-induced growth of carbon nanotubes, nanofibers, and other nanostructures on the tips of nanowires, cantilevers, conductive micro/nanometer structures, wafers and the like. The method can be used for production of carbon nanotube-anchored cantilevers that can significantly improve the performance of scaning probe microscopy (AFM, EFM etc). The invention can also be used in many other processes of micro and/or nanofabrication with carbon nanotubes/fibers. Key elements of this invention include: (1) Proper selection of a metal catalyst and programmable pulsed electrolytic deposition of the desired specific catalyst precisely at the tip of a substrate, (2) Catalyst-induced growth of carbon nanotubes/fibers at the catalyst-deposited tips, (3) Control of carbon nanotube/fiber growth pattern by manipulation of tip shape and growth conditions, and (4) Automation for mass production.

  14. Clean Boiler Water-side Heat Transfer Surfaces - Steam Tip Sheet #7

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet on cleaning boiler water-side heat transfer surfaces provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  15. Use Feedwater Economizers for Waste Heat Recovery - Steam Tip Sheet #3

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet on feedwater economizers for waste heat recovery provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  16. Energy Savings Tips on the Go: Check Out the New Energy Savers...

    Office of Environmental Management (EM)

    at DOE's National Renewable Energy Laboratory For years, many of you have found energy-saving tips about how to save money and energy at home, in your vehicle, and at work on...

  17. Psychology 471 -Behavioural Pharmacology Research Tips M.C. Vandenburg, Stauffer 107b

    E-Print Network [OSTI]

    Fletcher, Robin

    Psychology 471 - Behavioural Pharmacology Research Tips M.C. Vandenburg, Stauffer 107b mcv concepts in pharmacology L. N. Holland Jr., M. P. Adams. Psychology Subject Guide http://library.queensu.ca/research/guide/psychology

  18. Microsoft PowerPoint - 7_MARY_MCCDONNELL_JOHN_BALLARD_Tips for...

    National Nuclear Security Administration (NNSA)

    Len Myers Special Requests (301) 903-2180 Len.Myers@nnsa.doe.gov Patricia Smith NRC Reconciliation (301) 903-6860 PatriciaR.Smith@nnsa.doe.gov Tips for Success ...

  19. Use Vapor Recompression to Recover Low-Pressure Waste - Steam Tip Sheet #11

    SciTech Connect (OSTI)

    None

    2012-01-31

    This revised AMO tip sheet on recovering low-pressure waste steam provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  20. Transplanting assembly of carbon-nanotube-tipped atomic force microscope probes

    E-Print Network [OSTI]

    Soohyung, Kim

    Carbon-nanotube (CNT)-tipped atomic force microscope (AFM) probes were assembled in a deterministic and reproducible manner by transplanting a CNT bearing polymeric carrier to a microelectromechanical systems cantilever. ...

  1. Patterned vegetation, tipping points, and the rate of climate change Yuxin Chen , Theodore Kolokolnikov

    E-Print Network [OSTI]

    Kolokolnikov, Theodore

    to sudden irreversible changes (such as desertification) as the resource level dips below a tipping point in [11], where it was noted in §4.2 that "at high rates of change, desertification can take place

  2. Transjugular Intrahepatic Portosystemic Shunt (TIPS) Migration to the Heart Diagnosed by Emergency Department Ultrasound

    E-Print Network [OSTI]

    Wendler, Carlan; Shoenberger, Jan Marie; Mailhot, Thomas; Perera, Phillips

    2012-01-01

    et al. Atrial septal perforation from TIPS stent migration.4. Bala TM, Panda M. Cardiac perforation and tamponade: aBryant TJ, Barnard JJ. Cardiac perforation due to Wallstent

  3. Simulation of bristle tip lift-off in a brush seal 

    E-Print Network [OSTI]

    Modi, Sandeep Subhash

    1995-01-01

    A computational procedure to simulate the bristle tip lift-off mechanism in a brush seal is established. This involves both macroscopic and microscopic modeling of the brush seal. A porous media model is used in the ...

  4. Effect of plasma parameters on growth and field emission properties of spherical carbon nanotube tip

    SciTech Connect (OSTI)

    Sharma, Suresh C.; Tewari, Aarti

    2011-06-15

    The effect of plasma parameters (e.g., electron density and temperature, ion density and temperature, neutral atom density and temperature) on the growth (without a catalyst), structure, and field emission properties of a spherical carbon nanotube (CNT) tip has been theoretically investigated. A theoretical model of charge neutrality, including the kinetics of electrons, positively charged ions, and neutral atoms and the energy balance of the various species in plasma, has been developed. Numerical calculations of the radius of the spherical CNT tip for different CNT number densities and plasma parameters have been carried out for the typical glow discharge plasma parameters. It is found that upon an increase in the CNT number density and plasma parameters, the radius of the spherical CNT tip decreases, and consequently the field emission factor for the spherical CNT tip increases.

  5. Focused ion beam modification of atomic force microscopy tips for near-field scanning optical microscopy

    E-Print Network [OSTI]

    Krogmeier, Jeffrey R.; Dunn, Robert C.

    2001-12-01

    fabri- cation process and the need for expensive FIB instrumenta- tion, but these impediments may be minimized as the fabri- cation techniques are refined. Since these tips share many of the physical characteristics of AFM probes, they should be capable... fabri- cation process and the need for expensive FIB instrumenta- tion, but these impediments may be minimized as the fabri- cation techniques are refined. Since these tips share many of the physical characteristics of AFM probes, they should be capable...

  6. Leakage radiation microscopy of surface plasmons launched by a nanodiamond-based tip

    E-Print Network [OSTI]

    Mollet, O; Drezet, A; Huant, S; 10.1016/j.diamond.2011.05.012

    2011-01-01

    Leakage-radiation microscopy of a thin gold film demonstrates the ability of an ensemble of fluorescent diamond nanoparticles attached onto the apex of an optical tip to serve as an efficient near-field surface-plasmon polariton launcher. The implementation of the nanodiamond-based tip in a near-field scanning optical microscope will allow for an accurate control on the launching position, thereby opening the way to scanning plasmonics.

  7. Coherent dynamics in the rotor tip shear layer of utility scale wind turbines

    E-Print Network [OSTI]

    Yang, Xiaolei; Barone, Matthew; Sotiropoulos, Fotis

    2015-01-01

    Recent field experiments conducted in the near-wake (up to 0.5 rotor diameters downwind of the rotor) of a 2.5 MW wind turbine using snow-based super-large-scale particle image velocimetery (SLPIV) (Hong et al., Nature Comm., vol. 5, 2014, no. 4216) were successful in visualizing tip vortex cores as areas devoid of snowflakes. The so-visualized snow voids, however, suggested tip vortex cores of complex shape consisting of circular cores with distinct elongated comet-like tails. We employ large-eddy simulation (LES) to elucidate the structure and dynamics of the complex tip vortices identified experimentally. The LES is shown to reproduce vortex cores in good qualitative agreement with the SLPIV results, essentially capturing all vortex core patterns observed in the field in the tip shear layer. We show that the visualized vortex patterns are the result of energetic coherent dynamics in the rotor tip shear layer driven by interactions between the tip vortices and a second set of counter-rotating spiral vortice...

  8. Nanofabrication of sharp diamond tips by e-beam lithography and inductively coupled plasma reactive ion etching.

    SciTech Connect (OSTI)

    Moldovan, N.; Divan, R.; Zeng, H.; Carlisle, J. A.; Advanced Diamond Tech.

    2009-12-07

    Ultrasharp diamond tips make excellent atomic force microscopy probes, field emitters, and abrasive articles due to diamond's outstanding physical properties, i.e., hardness, low friction coefficient, low work function, and toughness. Sharp diamond tips are currently fabricated as individual tips or arrays by three principal methods: (1) focused ion beam milling and gluing onto a cantilever of individual diamond tips, (2) coating silicon tips with diamond films, or (3) molding diamond into grooves etched in a sacrificial substrate, bonding the sacrificial substrate to another substrate or electrodepositing of a handling chip, followed by dissolution of the sacrificial substrate. The first method is tedious and serial in nature but does produce very sharp tips, the second method results in tips whose radius is limited by the thickness of the diamond coating, while the third method involves a costly bonding and release process and difficulties in thoroughly filling the high aspect ratio apex of molding grooves with diamond at the nanoscale. To overcome the difficulties with these existing methods, this article reports on the feasibility of the fabrication of sharp diamond tips by direct etching of ultrananocrystalline diamond (UNCD{reg_sign}) as a starting and structural material. The UNCD is reactive ion etched using a cap-precursor-mask scheme. An optimized etching recipe demonstrates the formation of ultrasharp diamond tips ({approx} 10 nm tip radius) with etch rates of 650 nm/min.

  9. An Examination of Version 5 Rainfall Estimates from the TRMM Microwave Imager, Precipitation Radar, and Rain Gauges on Global, Regional, and Storm Scales

    E-Print Network [OSTI]

    Rutledge, Steven

    , and Rain Gauges on Global, Regional, and Storm Scales STEPHEN W. NESBITT1 AND EDWARD J. ZIPSER Department TRMM rainfall products with Global Precipitation Climatology Centre (GPCC) global rain gauge analyses is done to evaluate the overall biases of the TMI and PR to "ground truth" to examine regional differences

  10. Allowance trading activity and state regulatory rulings: Evidence from the US Acid Rain Program

    SciTech Connect (OSTI)

    Bailey, E.M.

    1997-12-31

    The US Acid Rain Program is one of the first, and by far the most extensive, applications of a market based approach to pollution control. From the beginning, there has been concern whether utilities would participate in allowance trading, and whether regulatory activity at the state level would further complicate utilities` decision to trade allowances. This paper finds that public utility commission regulation has encouraged allowance trading activity in states with regulatory rulings, but that allowance trading activity has not been limited to states issuing regulations. Until there is evidence suggesting that significant additional cost savings could have been obtained if additional allowance trading activity had occurred in states without regulations or that utilities in states with regulations are still not taking advantage of all cost saving trading opportunities, this analysis suggests that there is little reason to believe that allowance trading activity is impeded by public utility commission regulations.

  11. Traces of Radioactive 131I in Rain Water Samples in Romania

    E-Print Network [OSTI]

    Margineanu, Romul; Apostu, Ana; Gomoiu, Claudia

    2011-01-01

    Measurements of I-131 (T1/2 = 8.04 days) have been performed in IFIN-HH's underground laboratory situated in Unirea salt mine from Slanic-Prahova, Romania. The rain water samples were collected in March 27th in Brasov and March 27th and 29th in Slanic. The samples were measured using a high resolution gamma-ray spectrometer equipped with a GeHP detector having a FWHM = 1.80 keV at 1332.48 keV at the second Co-60 gammaray, and a relative efficiency of 22.8 %. The results show a specific activity of I-131 of 0.35 \\pm 0.04 Bq/dm^3 in Brasov and 0.39 \\pm 0.04 Bq/dm^3, 0.13 \\pm 0.03 Bq/dm^3 and 0.71 \\pm 0.06 Bq/dm^3 in Slanic.

  12. Week 4, Rain in my Brain On top of the Harbor Cone, Otago Peninsula, Pacific Ocean in the distance.

    E-Print Network [OSTI]

    Bardsley, John

    Week 4, Rain in my Brain On top of the Harbor Cone, Otago Peninsula, Pacific Ocean in the distance of the ocean or of this beautiful city from on-high and it all comes back that we're here, a dream come true

  13. Volcanic Ash Fall--A "Hard Rain" of Abrasive Particles U.S. Department of the Interior

    E-Print Network [OSTI]

    V Volcanic Ash Fall--A "Hard Rain" of Abrasive Particles U.S. Department of the Interior U olcanic ash consists of tiny jagged particles of rock and natural glass blasted into the air by a volcano. Ash can threaten the health of people and live- stock, pose a hazard to flying jet aircraft, damage

  14. IMPROVED MICROWAVE REMOTE SENSING OF HURRICANE WIND SPEED AND RAIN RATES USING THE HURRICANE IMAGING RADIOMETER (HIRAD)

    E-Print Network [OSTI]

    Ruf, Christopher

    IMPROVED MICROWAVE REMOTE SENSING OF HURRICANE WIND SPEED AND RAIN RATES USING THE HURRICANE@mail.ucf.edu ABSTRACT The Hurricane Imaging Radiometer (HIRAD) is a new imaging technology microwave remote sensor for hurricane observations that is currently under development by NASA Marshall Space Flight Center

  15. Computational Screening of Tip and Stalk Cell Behavior Predicts a Role for Apelin Signaling in Sprout Progression

    E-Print Network [OSTI]

    Margriet M. Palm; Marchien G. Dallinga; Erik van Dijk; Ingeborg Klaassen; Reinier O. Schlingemann; Roeland M. H. Merks

    2015-08-13

    Angiogenesis involves the formation of new blood vessels by sprouting or splitting of existing blood vessels. During sprouting, a highly motile type of endothelial cell, called the tip cell, migrates from the blood vessels followed by stalk cells, an endothelial cell type that forms the body of the sprout. To get more insight into how tip cells contribute to angiogenesis, we extended an existing computational model of vascular network formation based on the cellular Potts model with tip and stalk differentiation, without making a priori assumptions about the differences between tip cells and stalk cells. To predict potential differences, we looked for parameter values that make tip cells (a) move to the sprout tip, and (b) change the morphology of the angiogenic networks. The screening predicted that if tip cells respond less effectively to an endothelial chemoattractant than stalk cells, they move to the tips of the sprouts, which impacts the morphology of the networks. A comparison of this model prediction with genes expressed differentially in tip and stalk cells revealed that the endothelial chemoattractant Apelin and its receptor APJ may match the model prediction. To test the model prediction we inhibited Apelin signaling in our model and in an in vitro model of angiogenic sprouting, and found that in both cases inhibition of Apelin or of its receptor APJ reduces sprouting. Based on the prediction of the computational model, we propose that the differential expression of Apelin and APJ yields a "self-generated" gradient mechanisms that accelerates the extension of the sprout.

  16. El Ahorro de Energia: Sugerencias para ahorrar energia y dinero en el hogar (Energy Savers Hot Winter Tips, Spanish Version)

    SciTech Connect (OSTI)

    Not Available

    2002-10-01

    This is the Spanish version of a tri-fold brochure that provides wintertime energy- and money-saving tips for homeowners.

  17. El Ahorro de Energia: Sugerencias para ahorrar energia y dinero en el hogar (Energy Savers Cool Summer Tips, Spanish Version)

    SciTech Connect (OSTI)

    Not Available

    2002-10-01

    This is the Spanish version of a tri-fold brochure that provides summertime energy- and money-saving tips for homeowners.

  18. Humidity effects on tip-induced polarization switching in lithium niobate

    SciTech Connect (OSTI)

    Ievlev, A. V.; Morozovska, A. N.; Shur, V. Ya.; Kalinin, S. V.

    2014-03-03

    In the last several decades, ferroelectrics have attracted much attention as perspective materials for nonlinear optics and data storage devices. Scanning probe microscopy (SPM) has emerged as a powerful tool both for studies of domain structures with nanoscale spatial resolution and for writing the isolated nanodomains by local application of the electric field. Quantitative analysis of the observed behavior requires understanding the role of environmental factors on imaging and switching process. Here, we study the influence of the relative humidity in the SPM chamber on tip-induced polarization switching. The observed effects are attributed to existence of a water meniscus between the tip and the sample surface in humid atmosphere. These results are important for a deeper understanding of complex investigations of ferroelectric materials and their applications and suggest the necessity for fundamental studies of electrocapillary phenomena at the tip-surface junction and their interplay with bias-induced materials responses.

  19. Humidity effects on tip-induced polarization switching in lithium niobate

    SciTech Connect (OSTI)

    Ievlev, Anton; Morozovska, A. N.; Shur, Vladimir Ya.; Kalinin, Sergei V

    2014-01-01

    In the last several decades, ferroelectrics have attracted much attention as perspective materials for nonlinear optics and data storage devices. Scanning probe microscopy (SPM) has emerged as a powerful tool both for studies of domain structures with nanoscale spatial resolution and for writing the isolated nanodomains by local application of the electric field. Quantitative analysis of the observed behavior requires understanding the role of environmental factors on imaging and switching process. Here we study the influence of the relative humidity in the SPM chamber on tip-induced polarization switching. The observed effects are attributed to existence of a water meniscus between the tip and the sample surface in humid atmosphere. These results are important for a deeper understanding of complex investigations of ferroelectric materials and their applications, and suggest the necessity for fundamental studies of electrocapillary phenomena at the tip-surface junction and their interplay with bias-induced materials responses.

  20. Thermodynamic and dynamic anomalous behavior in the TIP4P/? water model

    E-Print Network [OSTI]

    Raul Fuentes-Azcatl; Marcia C. Barbosa

    2015-08-11

    The model Tip4p/{\\epsilon} for water is tested for the presence of thermodynamic and dy- namic anomalies. Molecular dynamic simulations for this model were performed and we show that for this system the density versus temperature at constant pressure ex- hibits a maximum. In addition we also show that the diffusion coefficient versus density at constant temperature has a maximum and a minimum. The anomalous behavior of the density and of the diffusion coefficient obey the water hierachy. The results for the Tip4p- are consistent with experiments and when compared with the Tip4p-2005 model show similar results a variety of physical properties and better performance for the dielectric constant.

  1. Comparison of an alternative to the PTC 6 basket tip design

    SciTech Connect (OSTI)

    Burns, J.M. [Stone and Webster Engineering Corp., Boston, MA (United States); Hernandez, E. [Community Energy Alternatives Inc., Ridgewood, NJ (United States)

    1995-12-31

    Basket tip turbine exhaust static pressure sensors are recommended by all the major turbine manufacturers. Their geometry however is required to adhere to precise and minute design details to be acceptable for guarantee/acceptance testing. This paper discusses a practical modification to the classical ASME PTC 6 (Turbine Test Code) design that is easier to fabrication for the typical machine shop. The alternative design makes it less expensive, much faster to construct, and facilitates the drainage of any accumulated condensate. Comparative field tests by PSE and G`s Research and Testing Laboratory at the 300 MW Mercer Generating Station, Unit 1 will be described which demonstrates the modified tip pressure measurements are indistinguishable from those of the PTC 6 design. The paper also presents the limited available history of the empirical basket tip exhaust pressure sensor. Finally, based on the success of this one modification, the paper concludes that other even more suitable designs could be developed by further research.

  2. Measurement of the three-dimensional tip region flow field in an axial compressor

    SciTech Connect (OSTI)

    Stauter, R.C. )

    1993-07-01

    A two-color, five-beam LDV system has been configured to make simultaneous three-component velocity measurements of the flow field in a two-stage axial compressor model. The system has been used to make time-resolved measurements both between compressor blade rows and within the rotating blade passages in an axial compressor. The data show the nature and behavior of the complex, three-dimensional flow phenomena present in the tip region of a compressor as the convect downstream. In particular, the nature of the tip leakage vortex is apparent, being manifested by high blockage as well as the expected vortical motion. The data indicate that the radial flows associated with the tip leakage vortex begin to decrease while within the rotor passage, and that they temporarily increase aft of the passage.

  3. Eddy current probe with foil sensor mounted on flexible probe tip and method of use

    SciTech Connect (OSTI)

    Viertl, John R. M. (Niskayuna, NY); Lee, Martin K. (Niskayuna, NY)

    2001-01-01

    A pair of copper coils are embedded in the foil strip. A first coil of the pair generates an electromagnetic field that induces eddy currents on the surface, and the second coil carries a current influenced by the eddy currents on the surface. The currents in the second coil are analyzed to obtain information on the surface eddy currents. An eddy current probe has a metal housing having a tip that is covered by a flexible conductive foil strip. The foil strip is mounted on a deformable nose at the probe tip so that the strip and coils will conform to the surface to which they are applied.

  4. Effect of glycine on chromosomal aberrations of Allium cepa L. root tips caused by sodium fluoride 

    E-Print Network [OSTI]

    Abid, Adeeba Al-Shahwani

    1967-01-01

    EFFECT OF GLYCINE ON CHROMOSOMAL ABERRATIONS OF ALLIUM CEPA L ~ ROOT TIPS CAUSED BY SODIUM FLUORIDE A Thesis By Adeeba Al-Shahvani Abid Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1967 Major Subject Genetics EFFECT OF GLYCINE ON CHROMOSOMAL ABERRATIONS OF ALLIUM CEPA L, ROOT TIPS CAUSED BY SODIUM FLUORIDE A Thesis By Adeeba Al-Shahwani Abid Approved as to style and content by: ( airman...

  5. Temporal evolution of bubble tip velocity in classical Rayleigh-Taylor instability at arbitrary Atwood numbers

    SciTech Connect (OSTI)

    Liu, W. H.; HEDPS and CAPT, Peking University, Beijing 100871 ; Wang, L. F.; Ye, W. H.; Institute of Applied Physics and Computational Mathematics, Beijing 100088; Department of Physics, Zhejiang University, Hangzhou 310027 ; He, X. T.; Institute of Applied Physics and Computational Mathematics, Beijing 100088

    2013-06-15

    In this research, the temporal evolution of the bubble tip velocity in Rayleigh-Taylor instability (RTI) at arbitrary Atwood numbers and different initial perturbation velocities with a discontinuous profile in irrotational, incompressible, and inviscid fluids (i.e., classical RTI) is investigated. Potential models from Layzer [Astrophys. J. 122, 1 (1955)] and perturbation velocity potentials from Goncharov [Phys. Rev. Lett. 88, 134502 (2002)] are introduced. It is found that the temporal evolution of bubble tip velocity [u(t)] depends essentially on the initial perturbation velocity [u(0)]. First, when the u(0)tip velocity increases smoothly up to the asymptotic velocity (u{sup asp}) or terminal velocity. Second, when C{sup (1)}u{sup asp}?u(0)tip velocity increases quickly, reaching a maximum velocity and then drops slowly to the u{sup asp}. Third, when C{sup (2)}u{sup asp}?u(0)tip velocity decays rapidly to a minimum velocity and then increases gradually toward the u{sup asp}. Finally, when u(0)?C{sup (3)}u{sup asp}, the bubble tip velocity decays monotonically to the u{sup asp}. Here, the critical coefficients C{sup (1)},C{sup (2)}, and C{sup (3)}, which depend sensitively on the Atwood number (A) and the initial perturbation amplitude of the bubble tip [h(0)], are determined by a numerical approach. The model proposed here agrees with hydrodynamic simulations. Thus, it should be included in applications where the bubble tip velocity plays an important role, such as the design of the ignition target of inertial confinement fusion where the Richtmyer-Meshkov instability (RMI) can create the seed of RTI with u(0)?u{sup asp}, and stellar formation and evolution in astrophysics where the deflagration wave front propagating outwardly from the star is subject to the combined RMI and RTI.

  6. The role of microtubules in rapid hyphal tip growth of Aspergillus nidulans

    E-Print Network [OSTI]

    Horio, Tetsuya; Oakley, Berl R.

    2005-02-01

    of growth fluctuated over time from almost 0–0.194 #2;m/min. These germlings underwent repeated slow but steady growth periods punctuated by pauses in growth (Figure 1B). Tip growth in hyphal tip cells was steadier and much more rapid (0.506 #3; 0.21 #2;m..., and there was no obvious slowing of growth as germlings went through mitosis (Figure 1B). It is well established that the nuclei in the same cytoplas- mic compartment go into mitosis in semisynchronous man- ner (Robinow, 1969; Doonan, 1992). Time-lapse observations...

  7. UW Urban Songbird Study: Pictorial Guide to Color-banded Songbird Species in Seattle Area Common name (length in inches from tip of bill to tip of tail sex if distinct plumages)

    E-Print Network [OSTI]

    Brown, Sally

    name (length in inches from tip of bill to tip of tail ­ sex if distinct plumages) American robin (10" ­ male, darker gray head) American robin (10" ­ female, lighter gray head) Swainson's thrush (7" - sexes information contact: Kara Whittaker (karaayn@u.washington.edu) #12;Song sparrow (6.25" - sexes similar) Oregon

  8. TIP #20: Stamp Out Air Air is completely non-biodegradable, and can cause suffocation of marine animals.

    E-Print Network [OSTI]

    Pearlmutter, Barak

    TIP #20: Stamp Out Air Air is completely non-biodegradable, and can cause suffocation of marine animals. TIP #20: Stamp Out Air (Americans breath enough air every year to cover the earth 436 times.) Background: What we think of as "air" is actually a high pressure mixture of toxic gasses. This material

  9. X-ray microdiffraction study of martensit-retained austenite microstructures at the tip of a steel blade.

    SciTech Connect (OSTI)

    Cai, Z.; Lai, B.; Ilinski, P.; Legnini, D.; Yun, W.; Experimental Facilities Division; Xradia

    2001-01-01

    The x-ray microdiffraction technique was used to study lattice-strain field and phase concentration near the surface of a carburised steel blade on a micron-length scale. Our results show larger compressive lattice strains and more completed phase transformation at the location near the tip of the blade than that the locations away from the tip.

  10. Current and Future Carbon Budgets of Tropical Rain Forest: A Cross Scale Analysis. Final Report

    SciTech Connect (OSTI)

    Oberbauer, S. F.

    2004-01-16

    The goal of this project was to make a first assessment of the major carbon stocks and fluxes and their climatic determinants in a lowland neotropical rain forest, the La Selva Biological Station, Costa Rica. Our research design was based on the concurrent use of several of the best available approaches, so that data could be cross-validated. A major focus of our effort was to combine meteorological studies of whole-forest carbon exchange (eddy flux), with parallel independent measurements of key components of the forest carbon budget. The eddy flux system operated from February 1998 to February 2001. To obtain field data that could be scaled up to the landscape level, we monitored carbon stocks, net primary productivity components including tree growth and mortality, litterfall, woody debris production, root biomass, and soil respiration in a series of replicated plots stratified across the major environmental gradients of the forest. A second major focus of this project was on the stocks and changes of carbon in the soil. We used isotope studies and intensive monitoring to investigate soil organic stocks and the climate-driven variation of soil respiration down the soil profile, in a set of six 4m deep soil shafts stratified across the landscape. We measured short term tree growth, climate responses of sap flow, and phenology in a suite of ten canopy trees to develop individual models of tree growth to daytime weather variables.

  11. Acid rain regs will be falling on utilities in '84, but not too hard

    SciTech Connect (OSTI)

    Smock, R.

    1984-01-01

    Regulations will probably call for sulfur dioxide scrubber retrofits on some older power plants in 1984, but because the action will likely be administrative under the Clean Air Act rather than new legislation, the rulings will be less harsh. A response to Canadian pressures was delayed when administration attention focused on military problems and rejected the first Environmental Protection Agency (EPA) proposals submitted by the new director as too costly. Failure to take action in 1984, however, will be politically damaging to the administration during an election year. A lack of scientific data hampers decision making, but EPA scientists predict there will be enough information by 1988 to accurately quantify acid-rain damage. EPA must decide which states to include in the regulations, how much to reduce sulfur dioxide emissions, and how to allocate quotas. Complicating the issue is the effect on the jobs of high-sulfur coal miners and the high capital costs of scrubbers. A low-cost retrofit may be possible with a furnace-injection technique now under study. 2 figures, 3 tables. (DCK)

  12. Global Warming Twenty Years Later: Tipping Points Near James Hansen1

    E-Print Network [OSTI]

    Hansen, James E.

    Global Warming Twenty Years Later: Tipping Points Near James Hansen1 My presentation today is exactly 20 years after my 23 June 1988 testimony to Congress, which alerted the public that global warming has developed between what is understood about global warming by the relevant scientific community

  13. Deep convection in the Irminger Sea forced by the Greenland tip jet

    E-Print Network [OSTI]

    Deep convection in the Irminger Sea forced by the Greenland tip jet Robert S. Pickart*, Michael A ........................................................................................................................................................................................................................... Open-ocean deep convection, one of the processes by which deep waters of the world's oceans are formed, the southwest Irminger Sea has been suggested as an additional location for open-ocean deep convection. The deep

  14. Single-Atom Extraction by Scanning Tunneling Microscope Tip Crash and

    E-Print Network [OSTI]

    Hla, Saw-Wai

    materials form islands with straight step edges, indicating (Figure 1A) that the amount of heat locally produced. After the tip crash, some of the substrate material is piled up as monolayer-high silver islands-temperature, resulting in formation of silver islands with well-defined shapes.9 In our experiment, the piled up

  15. Compost Tips for the Home Gardener1 Sydney Park Brown2

    E-Print Network [OSTI]

    Jawitz, James W.

    ENH1065 Compost Tips for the Home Gardener1 Sydney Park Brown2 1. This document is ENH1065, one. Nick T. Place, dean for UF/IFAS Extension. What Is Compost? Compost is a dark, crumbly material created. Compost is not completely decomposed (like humus); it will contain small pieces of debris that can

  16. The Fiber Walk: A Model of Tip-Driven Growth with Lateral Expansion

    E-Print Network [OSTI]

    Turk, Greg

    The Fiber Walk: A Model of Tip-Driven Growth with Lateral Expansion Alexander Bucksch1,2 *, Greg Turk1 , Joshua S. Weitz2,3 1 Georgia Institute of Technology, School of Interactive Computing, Atlanta, Georgia, United States of America, 2 Georgia Institute of Technology, School of Biology, Atlanta, Georgia

  17. Tips on Studying Abroad at Monterrey Tec (Summer Program) in Mexico

    E-Print Network [OSTI]

    Li, Mo

    Tips on Studying Abroad at Monterrey Tec (Summer Program) in Mexico Want to know what it's like it was in Mexico, which is similar enough to the U.S. that I wouldn't feel totally out of place, yet it was also or less students. (Contemporary Mexico had 21 students, Latin American Society and Culture had 15

  18. EE 361 Fall 2003 University of Hawaii 1 Hardware Design Tips

    E-Print Network [OSTI]

    Sasaki, Galen H.

    1 EE 361 Fall 2003 University of Hawaii 1 Hardware Design Tips EE 361 University of Hawaii EE 361 Fall 2003 University of Hawaii 2 Outline · Verilog: some subleties · Simulators · Test Benching · Implementing the MIPS ­ Actually a simplified 16 bit version #12;2 EE 361 Fall 2003 University of Hawaii 3

  19. Chemically vapor deposited diamond-tipped one-dimensional nanostructures and nanodiamondsilicananotube composites

    E-Print Network [OSTI]

    Wilamowski, Bogdan Maciej

    Chemically vapor deposited diamond-tipped one-dimensional nanostructures and nanodiamond vapor deposition Composite thin films of nanodiamond and silica nanotubes were synthesized by means with nanodiamond particles. SEM, Raman spectroscopy, and EDX were used to analyze the composite. Wet chemical

  20. adopt our eco-driving top tips to reduce fuel costs

    E-Print Network [OSTI]

    Harman, Neal.A.

    adopt our eco-driving top tips to reduce fuel costs and accident risk Drive smoothly · Anticipate this will activate the fuel cut-off switch, reducing fuel flow to virtually zero. Shift up early · When accelerating, when appropriate. Avoid excessive speed High speeds greatly increase fuel consumption. Keep tyres

  1. Tropical Moored Buoy Implementation Panel (TIP) Report M. J. McPhaden, NOAA/PMEL

    E-Print Network [OSTI]

    Tropical Moored Buoy Implementation Panel (TIP) Report M. J. McPhaden, NOAA/PMEL Prepared of physical, chemical and biological parameters made on repeat routine buoy serving cruises. These cruises a convenient platform for buoy, drifter and weather balloon launches and other measurement activities

  2. A 30 mK, 13.5 T scanning tunneling microscope with two independent tips

    SciTech Connect (OSTI)

    Roychowdhury, Anita [Laboratory for Physical Sciences, College Park, Maryland 20742 (United States) [Laboratory for Physical Sciences, College Park, Maryland 20742 (United States); Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, Maryland 20740 (United States); Gubrud, M. A.; Dana, R.; Dreyer, M. [Laboratory for Physical Sciences, College Park, Maryland 20742 (United States)] [Laboratory for Physical Sciences, College Park, Maryland 20742 (United States); Anderson, J. R.; Lobb, C. J.; Wellstood, F. C. [Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, Maryland 20740 (United States)] [Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, Maryland 20740 (United States)

    2014-04-15

    We describe the design, construction, and performance of an ultra-low temperature, high-field scanning tunneling microscope (STM) with two independent tips. The STM is mounted on a dilution refrigerator and operates at a base temperature of 30 mK with magnetic fields of up to 13.5 T. We focus on the design of the two-tip STM head, as well as the sample transfer mechanism, which allows in situ transfer from an ultra high vacuum preparation chamber while the STM is at 1.5 K. Other design details such as the vibration isolation and rf-filtered wiring are also described. Their effectiveness is demonstrated via spectral current noise characteristics and the root mean square roughness of atomic resolution images. The high-field capability is shown by the magnetic field dependence of the superconducting gap of Cu{sub x}Bi{sub 2}Se{sub 3}. Finally, we present images and spectroscopy taken with superconducting Nb tips with the refrigerator at 35 mK that indicate that the effective temperature of our tips/sample is approximately 184 mK, corresponding to an energy resolution of 16 ?eV.

  3. April Tip of the Month Does This Really Count as Exercise?

    E-Print Network [OSTI]

    Ottino, Julio M.

    April Tip of the Month Does This Really Count as Exercise? By Jennifer Gibbons, LCSW, Adult and brain atrophy in those at risk for Alzheimer's disease. So should your 85-year-old mother begin training.com's Adult and Senior Care Advisers are experienced, masters-level social workers. Call us today at (855) 781

  4. On-Line Journal Tips and Refreshers Cash Receipt and Credit Card Journals

    E-Print Network [OSTI]

    Yamamoto, Keith

    On-Line Journal Tips and Refreshers Cash Receipt and Credit Card Journals Updated April 2009 Updated 04/30/2010 1 Cash Receipt and Credit Card Journals ­ Source Code 320 and 323 Purpose Cash Receipt more or once a week ­ whichever comes first. 2. Journals should be dated the date they are prepared

  5. Tips for Reading Scholarly and Journal Articles What is a scholarly journal/journal article?

    E-Print Network [OSTI]

    Snider, Barry B.

    Tips for Reading Scholarly and Journal Articles What is a scholarly journal/journal article? The purpose of research is to find and create new knowledge. Scholarly journals, and the peerreviewed to date in their research fields, faculty members are often reading several books and journals at the same

  6. Tendons, Concentric Tubes, and a Bevel Tip: Three Steerable Robots in One Transoral Lung Access System

    E-Print Network [OSTI]

    Tendons, Concentric Tubes, and a Bevel Tip: Three Steerable Robots in One Transoral Lung Access, and Robert J. Webster III1, Senior Member, IEEE Abstract-- Lung cancer is the most deadly form of cancer between-the-ribs needle insertion because it is less invasive and reduces risk of lung collapse. Yet many

  7. AUTOMATED ACTIN FILAMENT SEGMENTATION, TRACKING AND TIP ELONGATION MEASUREMENTS BASED ON OPEN ACTIVE CONTOUR MODELS

    E-Print Network [OSTI]

    Huang, Xiaolei

    AUTOMATED ACTIN FILAMENT SEGMENTATION, TRACKING AND TIP ELONGATION MEASUREMENTS BASED ON OPEN use a novel open active contour model for filament segmentation and tracking, which is fast and robust against noise; and (ii) different strategies are proposed to solve the filament intersection problem

  8. Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism

    E-Print Network [OSTI]

    Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism (As published Resources Many tourism businesses understand that `going green' is important. It can help reduce operating costs, a growing number of consumers are asking for green products and services, and there is growing

  9. How-To Guide Tips for Evaluating and Accepting Job Offers

    E-Print Network [OSTI]

    Gering, Jon C.

    How-To Guide Tips for Evaluating and Accepting Job Offers In order to evaluate your options, you will also need to determine what your skills are worth in today's marketplace. First Response to an Offer: Offers are generally first given over the phone, with a follow-up letter explaining it in more detail

  10. Last Updated: July 12, 2011 1 iSiS Browser Troubleshooting Tips

    E-Print Network [OSTI]

    Massachusetts at Lowell, University of

    Last Updated: July 12, 2011 1 iSiS ­ Browser Troubleshooting Tips Web browsers retain information to help speed up the process of loading pages and using iSiS. Unfortunately, during times that there are iSiS software changes, the browsers need to be cleaned to ensure iSiS operates correctly. Here are some

  11. Monte Carlo model for analysis of thermal runaway electrons in streamer tips in transient luminous

    E-Print Network [OSTI]

    Pasko, Victor

    Monte Carlo model for analysis of thermal runaway electrons in streamer tips in transient luminous in transient luminous events (TLEs) termed sprites, which occur in the altitude range 40­90 km in the Earth modeling results indicate that the $10 Ek fields are able to accelerate a fraction of low-energy (several e

  12. Determining crack-tip stress-field parameters from mixed-mode displacement fields 

    E-Print Network [OSTI]

    Matsumoto, Kay Yuri

    1995-01-01

    that can develop at interfaces in composites and ceramics after prolonged exposure to elevated temperatures and adverse environments. The local crack-tip stress field in these cases will have a Mode II component even when the global loading is purely...

  13. An Evaluation of High Order Spatial Accuracy Algorithms for Modeling Fixed and Rotary Wing Tip regions

    E-Print Network [OSTI]

    1 An Evaluation of High Order Spatial Accuracy Algorithms for Modeling Fixed and Rotary Wing Tip Nielsen Engineering and Research, Inc., Mountain View, CA 94043-2212 Yi Liu, Radhika Gupta, and L. N. Sankar School of Aerospace Engineering, Georgia Tech, Atlanta, GA 30332-0150 ABSTRACT Several high order

  14. Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism

    E-Print Network [OSTI]

    Gopalakrishnan, K.

    Greening North Carolina Travel and Tourism Tips for Sustainable Practices in Tourism (As published that `going green' is important. It can help reduce operating costs, a growing number of consumers are asking for green products and services, and there is growing evidence that if we do not change how we do certain

  15. Properties of amorphous AlYb alloy coating for scanning near-field optical microscopy tips

    E-Print Network [OSTI]

    Grütter, Peter

    Properties of amorphous Al­Yb alloy coating for scanning near-field optical microscopy tips K. F 2002 Pinholes due to grain boundaries are a major source of defects in coatings of scanning near the initially amorphous film is crystallized. Finally, we demonstrated deposition of Al­Yb coatings on scanning

  16. Jets and Orography: Idealized Experiments with Tip-Jets and Lighthill Blocking

    E-Print Network [OSTI]

    Jets and Orography: Idealized Experiments with Tip-Jets and Lighthill Blocking P.B. Rhines issue on Jets 15 June 2006 #12;2 ABSTRACT In this note we describe some qualitative features of the generation of jet-like concentrated circulations, wakes and blocks by simple mountain-like orography, both

  17. Nanoscale Heat Transfer at Contact Between a Hot Tip and a Substrate Stphane Lefvre

    E-Print Network [OSTI]

    Boyer, Edmond

    Nanoscale Heat Transfer at Contact Between a Hot Tip and a Substrate Stéphane Lefèvre Laboratoire d three heat transfer modes with experimental data and modeling. We conclude that the three modes in "International Journal of Heat and Mass Transfer 49, 1-2 (2006) 251-258" DOI : 10.1016/j.ijheatmasstransfer.2005

  18. Evaluation of Cloud-resolving and Limited Area Model Intercomparison Simulations using TWP-ICE Observations. Part 2: Rain Microphysics

    SciTech Connect (OSTI)

    Varble, Adam; Zipser, Edward J.; Fridlind, Ann; Zhu, Ping; Ackerman, Andrew; Chaboureau, Jean-Pierre; Fan, Jiwen; Hill, Adrian; Shipway, Ben; Williams, Christopher R.

    2014-12-27

    Ten 3D cloud-resolving model (CRM) simulations and four 3D limited area model (LAM) simulations of an intense mesoscale convective system observed on January 23-24, 2006 during the Tropical Warm Pool – International Cloud Experiment (TWP-ICE) are compared with each other and with observations and retrievals from a scanning polarimetric radar, co-located UHF and VHF vertical profilers, and a Joss-Waldvogel disdrometer in an attempt to explain published results showing a low bias in simulated stratiform rainfall. Despite different forcing methodologies, similar precipitation microphysics errors appear in CRMs and LAMs with differences that depend on the details of the bulk microphysics scheme used. One-moment schemes produce too many small raindrops, which biases Doppler velocities low, but produces rain water contents (RWCs) that are similar to observed. Two-moment rain schemes with a gamma shape parameter (?) of 0 produce excessive size sorting, which leads to larger Doppler velocities than those produced in one-moment schemes, but lower RWCs than observed. Two moment schemes also produce a convective median volume diameter distribution that is too broad relative to observations and thus, may have issues balancing raindrop formation, collision coalescence, and raindrop breakup. Assuming a ? of 2.5 rather than 0 for the raindrop size distribution improves one-moment scheme biases, and allowing ? to have values greater than 0 may improve two-moment schemes. Under-predicted stratiform rain rates are associated with under-predicted ice water contents at the melting level rather than excessive rain evaporation, in turn likely associated with convective detrainment that is too high in the troposphere and mesoscale circulations that are too weak. In addition to stronger convective updrafts than observed, limited domain size prevents a large, well-developed stratiform region from developing in CRMs, while a dry bias in ECMWF analyses does the same to the LAMs.

  19. The role of land surface processes on the mesoscale simulation of the July 26, 2005 heavy rain event over Mumbai, India

    E-Print Network [OSTI]

    Niyogi, Dev

    The role of land surface processes on the mesoscale simulation of the July 26, 2005 heavy rain Mesoscale convection Weather research and forecast model Indian summer monsoon Land surface processes

  20. Vegetation History And Logging Disturbance: Effects On Rain Forest In The Lope Reserve, Gabon (With Special Emphasis On Elephants and Apes) 

    E-Print Network [OSTI]

    White, Lee JT

    An investigation of the effects of commercial mechanised selective logging on rain forest vegetation and mammals, was undertaken in the Lope Reserve, central Gabon, between January 1989 to July 1991. Vegetation in Lope ...

  1. Effects of nonaxisymmetric tip clearance on axial compressor performance and stability

    SciTech Connect (OSTI)

    Graf, M.B.; Wong, T.S.; Greitzer, E.M.; Marble, F.E.; Tan, C.S.; Shin, H.W.; Wisler, D.C.

    1998-10-01

    The effects of circumferentially nonuniform tip clearance on axial compressor performance and stability have been investigated experimentally and analytically. A theoretical model for compressor behavior with nonaxisymmetric tip clearance has been developed and used to design a series of first-of-a-kind experiments on a four-stage, low-speed compressor. The experiments and computational results together show clearly the central physical features and controlling parameters of compressor response to nonaxisymmetric tip clearance. It was found that the loss in stall margin was more severe than that estimated based on average clearance. The stall point was, in fact, closer to that obtained with uniform clearance at the maximum clearance level. The circumferential length scale of the tip clearance (and accompanying flow asymmetry) was an important factor in determining the stall margin reduction. For the same average clearance, the loss in peak pressure rise was 50 percent higher for an asymmetry with fundamental wavelength equal to the compressor circumference than with wavelength equal to one-half the circumference. The clearance asymmetry had much less of an effect on peak efficiency; the measured maximum efficiency decrease obtained was less than 0.4 percent compared to the 8 percent decrease in peak pressure rise due to the asymmetric clearance. The efficiency penalty due to nonaxisymmetric tip clearance was thus close to that obtained with a uniform clearance at the circumferentially averaged level. The theoretical model accurately captured the decreases in both steady-state pressure rise and stable operating range which are associated with clearance asymmetry.

  2. The Common Occurrence of Highly Supercooled Drizzle and Rain near the Coastal Regions of the Western United States

    SciTech Connect (OSTI)

    Rosenfeld, Daniel; Chemke, Rei; DeMott, Paul J.; Sullivan, Ryan C.; Rasmussen, R M.; McDonough, Frank; Comstock, Jennifer M.; Schmid, Beat; Tomlinson, Jason M.; Jonsson, Haf; Suski, Kaitlyn; Cazorla, Alberto; Prather, Kimberly

    2013-09-05

    The formation of highly supercooled rain was documented by aircraft observations in clouds at a wide range of conditions near the coastal region of the western United States. Several case studies are described in detail using combined cloud and aerosol measurements to document both the highly super-cooled condition and the relatively pristine aerosol conditions under which it forms. The case studies include: (1) Marine convective clouds over the coastal waters of northern California, as measured by cloud physics probes flown on a Gulfstream-1 aircraft during the CALWATER campaign in February and early March 2011. The clouds had extensive drizzle in their tops, which extended downward to the 0°C isotherm as supercooled rain. Ice multiplication was observed only in mature parts of the clouds where cloud water was already depleted. (2) Orographically triggered convective clouds in marine air mass over the foothills of the Sierra Nevada to the east of Sacramento, as measured in CALWATER. Supercooled rain was observed down to -21°C. No indications for ice multiplication were evident. (3) Orographic layer clouds over Yosemite National Park, also measured in CALWATER. The clouds had extensive drizzle at -21°C, which intensified with little freezing lower in the cloud, and (4) Supercooled drizzle drops in layer clouds near Juneau, Alaska, as measured by the Wyoming King Air as part of a FAA project to study aircraft icing in this region. Low concentrations of CCN was a common observation in all these clouds, allowing for the formation of clouds with small concentration of large drops that coalesced into supercooled drizzle and raindrops. Another common observation was the absence of ice nuclei and/or ice crystals in measurable concentrations was associated with the persistent supercooled drizzle and rain. Average ice crystal concentrations were 0.007 l-1 at the top of convective clouds at -12°C and 0.03 l-1 in the case of layer clouds at -21°C. In combination these two conditions provide ideal conditions for the formation of highly supercooled drizzle and rain. These results help explain the anomalously high incidences of aircraft icing at cold temperatures in U.S. west coast clouds (Bernstein et al., 2004) and highlight the need to include aerosol effects when simulating aircraft icing with cloud models. These case studies can also serve as benchmarks for explicit cloud microphysics models attempting to simulate the formation of precipitation in these types of pristine conditions.

  3. Dimethyl sulfide in the Amazon rain forest: DMS in the Amazon

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

    Jardine, K.; Yañez-Serrano, A. M.; Williams, J.; Kunert, N.; Jardine, A.; Taylor, T.; Abrell, L.; Artaxo, P.; Guenther, A.; Hewitt, C. N.; et al

    2015-01-08

    Surface-to-atmosphere emissions of dimethyl sulfide (DMS) may impact global climate 44 through the formation of gaseous sulfuric acid, which can yield secondary sulfate 45 aerosols and contribute to new particle formation. While oceans are generally 46 considered the dominant source of DMS, a shortage of ecosystem observations prevents 47 an accurate analysis of terrestrial DMS sources. Using mass spectrometry, we quantified 48 ambient DMS mixing ratios within and above a primary rainforest ecosystem in the 49 central Amazon Basin in real-time (2010-2011) and at high vertical resolution (2013-50 2014). Elevated but highly variable DMS mixing ratios were observed within themore »51 canopy, showing clear evidence of a net ecosystem source to the atmosphere during 52 both day and night in both the dry and wet seasons. Periods of high DMS mixing ratios 53 lasting up to 8 hours (up to 160 ppt) often occurred within the canopy and near the 54 surface during many evenings and nights. Daytime gradients showed mixing ratios (up 55 to 80 ppt) peaking near the top of the canopy as well as near the ground following a rain 56 event. The spatial and temporal distribution of DMS suggests that ambient levels and 57 their potential climatic impacts are dominated by local soil and plant emissions. A soil 58 source was confirmed by measurements of DMS emission fluxes from Amazon soils as 59 a function of temperature and soil moisture. Furthermore, light and temperature 60 dependent DMS emissions were measured from seven tropical tree species. Our study 61 has important implications for understanding terrestrial DMS sources and their role in 62 coupled land-atmosphere climate feedbacks. 63« less

  4. Dimethyl sulfide in the Amazon rain forest: DMS in the Amazon

    SciTech Connect (OSTI)

    Jardine, K.; Yañez-Serrano, A. M.; Williams, J.; Kunert, N.; Jardine, A.; Taylor, T.; Abrell, L.; Artaxo, P.; Guenther, A.; Hewitt, C. N.; House, E.; Florentino, A. P.; Manzi, A.; Higuchi, N.; Kesselmeier, J.; Behrendt, T.; Veres, P. R.; Derstroff, B.; Fuentes, J. D.; Martin, S. T.; Andreae, M. O.

    2015-01-08

    Surface-to-atmosphere emissions of dimethyl sulfide (DMS) may impact global climate 44 through the formation of gaseous sulfuric acid, which can yield secondary sulfate 45 aerosols and contribute to new particle formation. While oceans are generally 46 considered the dominant source of DMS, a shortage of ecosystem observations prevents 47 an accurate analysis of terrestrial DMS sources. Using mass spectrometry, we quantified 48 ambient DMS mixing ratios within and above a primary rainforest ecosystem in the 49 central Amazon Basin in real-time (2010-2011) and at high vertical resolution (2013-50 2014). Elevated but highly variable DMS mixing ratios were observed within the 51 canopy, showing clear evidence of a net ecosystem source to the atmosphere during 52 both day and night in both the dry and wet seasons. Periods of high DMS mixing ratios 53 lasting up to 8 hours (up to 160 ppt) often occurred within the canopy and near the 54 surface during many evenings and nights. Daytime gradients showed mixing ratios (up 55 to 80 ppt) peaking near the top of the canopy as well as near the ground following a rain 56 event. The spatial and temporal distribution of DMS suggests that ambient levels and 57 their potential climatic impacts are dominated by local soil and plant emissions. A soil 58 source was confirmed by measurements of DMS emission fluxes from Amazon soils as 59 a function of temperature and soil moisture. Furthermore, light and temperature 60 dependent DMS emissions were measured from seven tropical tree species. Our study 61 has important implications for understanding terrestrial DMS sources and their role in 62 coupled land-atmosphere climate feedbacks. 63

  5. High Resolution RANS NLH Study of Stage 67 Tip Injection Physics

    SciTech Connect (OSTI)

    Matheson, Michael A [ORNL

    2014-01-01

    Numerical prediction of the Stage 67 transonic fan stage employing wall jet tip injection flow control and study of the physical mechanisms leading to stall suppression and stability enhancement afforded by endwall recirculation/injection is the focus of this paper. Reynolds averaged Navier-Stokes computations were used to perform detailed analysis of the Stage 67 configuration experimentally tested at NASA s Glenn Research Center in 2004. Time varying prediction of the stage plus recirculation and injection flowpath were performed utilizing the Nonlinear Harmonic approach. Significantly higher grid resolution per passage was achieved than what has been generally employed in prior reported numerical studies of spike stall phenomena in transonic compressors. This paper focuses on characterizing the physics of spike stall embryonic stage phenomena and the impact of tip injection, resulting in experimentally and numerically demonstrated stall suppression

  6. Tip-based source of femtosecond electron pulses at 30?keV

    SciTech Connect (OSTI)

    Hoffrogge, Johannes; Paul Stein, Jan [Max Planck Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching (Germany); Krüger, Michael; Förster, Michael; Hammer, Jakob; Ehberger, Dominik; Hommelhoff, Peter, E-mail: peter.hommelhoff@fau.de [Max Planck Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching (Germany); Department für Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 1, 91058 Erlangen (Germany); Baum, Peter [Max Planck Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching (Germany); Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching (Germany)

    2014-03-07

    We present a nano-scale photoelectron source, optimized for ultrashort pulse durations and well-suited for time-resolved diffraction and advanced laser acceleration experiments. A tungsten tip of several-ten-nanometers diameter mounted in a suppressor-extractor electrode configuration allows the generation of 30?keV electron pulses with an estimated pulse duration of 9?fs (standard deviation; 21?fs full width at half maximum) at the gun exit. We infer the pulse duration from particle tracking simulations, which are in excellent agreement with experimental measurements of the electron-optical properties of the source in the spatial domain. We also demonstrate femtosecond-laser triggered operation of the apparatus. The temporal broadening of the pulse upon propagation to a diffraction sample can be greatly reduced by collimating the beam. Besides the short electron pulse duration, a tip-based source is expected to feature a large transverse coherence and a nanometric emittance.

  7. Selective nano-patterning of graphene using a heated atomic force microscope tip

    SciTech Connect (OSTI)

    Choi, Young-Soo; Wu, Xuan; Lee, Dong-Weon, E-mail: mems@jnu.ac.kr [MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju (Korea, Republic of)] [MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju (Korea, Republic of)

    2014-04-15

    In this study, we introduce a selective thermochemical nano-patterning method of graphene on insulating substrates. A tiny heater formed at the end of an atomic force microscope (AFM) cantilever is optimized by a finite element method. The cantilever device is fabricated using conventional micromachining processes. After preliminary tests of the cantilever device, nano-patterning experiments are conducted with various conducting and insulating samples. The results indicate that faster scanning speed and higher contact force are desirable to reduce the sizes of nano-patterns. With the experimental condition of 1 ?m/s and 24 mW, the heated AFM tip generates a graphene oxide layer of 3.6 nm height and 363 nm width, on a 300 nm thick SiO{sub 2} layer, with a tip contact force of 100 nN.

  8. Time dependence of tip morphology during cellular/dendritic arrayed growth

    SciTech Connect (OSTI)

    Song, H.; Tewari, S.N.

    1996-04-01

    Succinonitrile-1.9 wt pct acetone has been directionally solidified in 0.7 x 0.7-cm-square cross section pyrex ampoules in order to observe the cell/dendrite tip morphologies, not influenced by the wall effects, which are present during growth in the generally used thin (about 200 {micro}m) crucibles. The tips do not maintain a steady-state shape, as is generally assumed. Instead, they fluctuate within a shape envelope. The extent of fluctuation increases with decreasing growth speed, as the micro structure changes from the dendritic to cellular. The influence of natural convection has been examined by comparing these morphologies with those grown, without convection, in the thin ampoules.

  9. Nutrient dynamics and nitrogen trace gas flux during ecosystem development in montane rain forest

    SciTech Connect (OSTI)

    Riley, R.H.; Vitousek, P.M.

    1995-01-01

    Patterns of nitrogen trace gas emissions, soil nitrogen flux, and nutrient availability were evaluated at five sites that form a chronosequence in Hawaiian montane rain forest. The estimated age of basaltic parent material from which soils developed at the Kilauea site was 200 yr, 6000 yr at the Puu Makaala site, 185000 yr at the Kohala site, 1.65 x 10{sup 6} yr at the Molokai site, and 4.5 x 10{sup 6} yr at the Kauai site. Peak net N mineralization and nitrification values were found in soils from the 185000-yr-old Kohala site. Nitrogen content of foliage and leaf litter was highest in the intermediate age sites (Puu Makaala and Kohala) and N and P retranslocation was lowest at the Puu Makaala site. Soil cores fertilized with nitrogen had significantly higher rates of root ingrowth than control cores at the two youngest sites (200 and 6000 yr old) but not in older sites (185000 and 4.5 x 10{sup 6}-yr-old sites) and total fine root growth into control cores was greatest at the Kohala site. The highest N{sub 2}O emissions were found at the 185000-yr-old Kohala site, while the highest combined flux of N{sub 2}O + NO was observed at the 4.5 x 10{sup 6}-yr-old Kauai site. While overall N{sub 2}O emission rates were correlated with rates of N transformations, soil water content appeared to influence the magnitude of emissions of N{sub 2}O and the ratios of emissions of NO vs. N{sub 2}O. N{sub 2}O emissions occurred when water-filled pore space (WFPS) values were >40%, with highest emissions in at least two sites observed at WFPS values of 75%. Among sites, high N{sub 2}O emissions were associated with high soil N transformation rates. Large NO fluxes were observed only at the Kauai site when WFPS values were <60%. 50 refs., 8 figs., 4 tabs.

  10. An investigation of crack-tip stress field criteria of predicting cleavage-crack initiation

    SciTech Connect (OSTI)

    Keeney-Walker, J.; Bass, B.R.; Landes, J.D. (Oak Ridge National Lab., TN (United States))

    1991-09-01

    Cleavage-crack initiation in large-scale wide-plate (WP) specimens could not be accurately predicted from small, compact (CT) specimens by using a linear-elastic fracture-mechanics, K{sub Ic}, methodology. In the wide-plate tests conducted by the Heavy-Section Steel Technology Program at Oak Ridge National Laboratory, crack initiation has consistently occurred at stress-intensity (K{sub I}) values ranging from two to four times those predicted by the CT specimens. Studies were initiated to develop crack-tip stress field criteria incorporating effects of geometry, size, and constraint that will lead to improved predictions of cleavage initiation in WP specimens from CT specimens. The work centers around nonlinear two-and three-dimensional finite-element analyses of the crack-tip stress fields in these geometries. Analyses were conducted on CT and WP specimens for which cleavage initiation fracture had been measured in laboratory tests. The local crack-tip field generated for these specimens were then used in the evaluation of fracture correlation parameters to augment the K{sub I} parameter for predicting cleavage initiation. Parameters of hydrostatic constraint and of maximum principal stress, measured volumetrically, are included in these evaluations. The results suggest that the cleavage initiation process can be correlated with the local crack-tip fields via a maximum principal stress criterion based on achieving a critical area within a critical stress contour. This criterion has been successfully applied to correlate cleavage initiation in 2T-CT and WP specimen geometries. 23 refs., 16 figs., 5 tabs.

  11. Chaperone networks: Tipping the balance in protein folding diseases Cindy Voisine, Jesper Sndergaard Pedersen, Richard I. Morimoto

    E-Print Network [OSTI]

    Morimoto, Richard

    Review Chaperone networks: Tipping the balance in protein folding diseases Cindy Voisine, Jesper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Molecular chaperones and protein folding quality control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 C. elegans models of diseases of protein folding

  12. Use Steam Jet Ejectors or Thermoscompressors to Reduce Venting of Low-Pressure Steam - Steam Tip Sheet #29

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO tip sheet on steam jet ejectors and thermocompressors provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  13. The Role of a Host Protein (TIP) in the Resistance Response of Arabidopsis to Turnip Crinkle Virus Infection.

    SciTech Connect (OSTI)

    T. Jack Morris, School of Biological Sciences, University of Nebraska, Lincoln, NE 68588-0118

    2008-10-20

    Our research on Turnip crinkle virus (TCV) has shown that the viral capsid protein (CP) is both a virulence factor as well as the elicitor of a hypersensitive resistance response (HR) to the virus in Arabidopsis. Initially, we identified a protein from Arabidopsis that specifically interacted with the viral CP using a yeast two-hybrid screen. This protein, designated TIP for TCV-Interacting Protein, is a member of the NAC family of plant transcription factors implicated in the regulation of development and senescence. When TCV CP was mutated to eliminate its ability to interact with TIP, the corresponding virus mutants broke the HR-mediated resistance conferred by the HRT resistance (R) gene in Arabidopsis ecotype Dijon (Di)-17. This result suggested that TIP is a component of the signal transduction pathway that leads to the genetically specified TCV resistance. We next confirmed that TIP and the viral CP interact in plant cells and that this interaction prevents nuclear localization of this transcription factor. We demonstrated that TCV CP suppresses post-transcriptional gene silencing (PTGS), a newly discovered RNA-mediated defense system in plants. Together these results suggest that the CP is a virulence factor that could well be functioning through its interaction with TIP. We have proposed a model involving the role of TIP and CP in triggering HR mediated plant defense that fits with the current thinking about how gene-for-gene resistance may function. A unique component of our system is the opportunity to link R-gene function with the newly discovered RNA silencing pathway that is not only a potent defense against viral pathogens, but also regulates early development in plants. In the current funding period we made several significant findings: First, we completed an array analysis comparing gene expression in Arabidopsis infected with TCV and a mutant virus unable to bind TIP. Second, we produced transgenic lines that over-express and inducibly under-express TIP. These accomplishments now form the basis for our continued effort towards providing a complete understanding of molecular events leading to susceptible and resistant interactions between TCV and Arabidopsis plants. Our data strongly suggest that TIP is involved in activating the SA-mediated defense pathway and that TCV CP acts to repress this role of TIP.

  14. Tips: Landscaping

    Broader source: Energy.gov [DOE]

    Landscaping is a natural and beautiful way to keep your home cool in summer and reduce your energy bills.

  15. Health Tips

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptions for Accidental ReleasesSurveillance of

  16. Tips: Smart Meters and a Smarter Power Grid | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofTheLaundry Tips: Laundry

  17. Laser-induced ultrafast electron emission from a field emission tip

    E-Print Network [OSTI]

    Brett Barwick; Chris Corder; James Strohaber; Nate Chandler-Smith; Cornelis Uiterwaal; Herman Batelaan

    2007-03-08

    We show that a field emission tip electron source that is triggered with a femtosecond laser pulse can generate electron pulses shorter than the laser pulse duration (~100 fs). The emission process is sensitive to a power law of the laser intensity, which supports an emission mechanism based on multiphoton absorption followed by over-the-barrier emission. Observed continuous transitions between power laws of different orders are indicative of field emission processes. We show that the source can also be operated so that thermionic emission processes become significant. Understanding these different emission processes is relevant for the production of sub-cycle electron pulses.

  18. Saving public resources: Tips for conserving energy and water in home and landscapes 

    E-Print Network [OSTI]

    Supercinski, Danielle

    2009-01-01

    , or toa ster oven because they use less energ y than th e range. A lso, turn off the ra nge 10 mi nutes bef ore the food is do ne and it will conti nue to co ok. ? Refri gerator ? If coolnes s can be f elt around the refrig erator... rkshop. B elow are a few tips to help reduce yo ur energy use: Air cond itioning ? Durin g the win ter keep t he therm ostat on 6 8? at nigh t and 60? during th e day. During th e summe r keep it o n 72? at n ight and 8 2...

  19. Resonant interaction of trapped cold atoms with a magnetic cantilever tip

    E-Print Network [OSTI]

    Montoya, Cris; Geraci, Andrew A; Eardley, Matthew; Moreland, John; Hollberg, Leo; Kitching, John

    2015-01-01

    Magnetic resonance in an ensemble of laser-cooled trapped Rb atoms is excited using a micro- cantilever with a magnetic tip. The cantilever is mounted on a multi-layer chip designed to capture, cool, and magnetically transport cold atoms. The coupling is observed by measuring the loss from a magnetic trap as the oscillating cantilever induces Zeeman state transitions in the atoms. Interfacing cold atoms with mechanical devices could enable probing and manipulating atomic spins with nanometer spatial resolution and single-spin sensitivity, leading to new capabilities in quantum computation, quantum simulation, or precision sensing.

  20. Resonant interaction of trapped cold atoms with a magnetic cantilever tip

    E-Print Network [OSTI]

    Cris Montoya; Jose Valencia; Andrew A. Geraci; Matthew Eardley; John Moreland; Leo Hollberg; John Kitching

    2015-03-26

    Magnetic resonance in an ensemble of laser-cooled trapped Rb atoms is excited using a micro- cantilever with a magnetic tip. The cantilever is mounted on a multi-layer chip designed to capture, cool, and magnetically transport cold atoms. The coupling is observed by measuring the loss from a magnetic trap as the oscillating cantilever induces Zeeman state transitions in the atoms. Interfacing cold atoms with mechanical devices could enable probing and manipulating atomic spins with nanometer spatial resolution and single-spin sensitivity, leading to new capabilities in quantum computation, quantum simulation, or precision sensing.

  1. Tip for working with approvals on OpenEI | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendo New EnergyWind Power Co Ltd Jump to:XEMC HunanTip for

  2. File:Tip Speed Lesson Plan.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto ElectricMonasterwindCAESRAPID ToolkitTip Speed Lesson Plan.pdf

  3. What Are Your Top Tips for Saving Energy? | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs SearchAMERICA'S FUTURE.Projects atWeRenewable EnergyFavoriteTop Tips for

  4. Watch the Watts: Tips for Buying a New Television | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'S FUTURE. regulators consumerWaste IsolationofWatch the Watts: Tips for

  5. Scanning Josephson Tunneling Microscopy of Single Crystal Bi2Sr2CaCu2O8+delta with a Conventional Superconducting Tip

    E-Print Network [OSTI]

    Kimura, H.

    2010-01-01

    +? with a Conventional Superconducting Tip Hikari Kimura,1,2between a conventional superconducting scanning tunnelinginhomogeneity in the superconductivity of BSCCO. The

  6. Predicting Fracture Energies and Crack-Tip Fields of Soft Tough Materials

    E-Print Network [OSTI]

    Teng Zhang; Shaoting Lin; Hyunwoo Yuk; Xuanhe Zhao

    2015-06-13

    Soft materials including elastomers and gels are pervasive in biological systems and technological applications. Whereas it is known that intrinsic fracture energies of soft materials are relatively low, how the intrinsic fracture energy cooperates with mechanical dissipation in process zone to give high fracture toughness of soft materials is not well understood. In addition, it is still challenging to predict fracture energies and crack-tip strain fields of soft tough materials. Here, we report a scaling theory that accounts for synergistic effects of intrinsic fracture energies and dissipation on the toughening of soft materials. We then develop a coupled cohesive-zone and Mullins-effect model capable of quantitatively predicting fracture energies of soft tough materials and strain fields around crack tips in soft materials under large deformation. The theory and model are quantitatively validated by experiments on fracture of soft tough materials under large deformations. We further provide a general toughening diagram that can guide the design of new soft tough materials.

  7. Fabrication and Characterization of CNT-Based Smart Tips for Synchrotron Assisted STM

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

    Yan, Hui; Cummings, Marvin; Camino, Fernando; Xu, Weihe; Lu, Ming; Tong, Xiao; Shirato, Nozomi; Rosenmann, Daniel; Rose, Volker; Nazaretski, Evgeny

    2015-01-01

    Determination of chemical composition along with imaging at the atomic level provides critical information towards fundamental understanding of the surface of materials and, hence, yields the capability to design new materials by tailoring their ultimate functionalities. Synchrotron X-ray assisted scanning tunneling microscopy (SX-STM) is a promising new technique to achieve real space chemically specific atomic mapping. Chemical sensitivity of SX-STM relies on excitation of core electrons by incident X-rays when their energy is tuned to an absorption edge of a particular element. However, along with core-level electrons, photoelectrons are also excited, which yield additional current and interfere with the tunnelingmore »current. To reduce the background photoelectron current and to improve ultimate resolution of SX-STM, we have developed and fabricated multiwalled carbon nanotubes (MWCNT) based “smart tips” using plasma enhanced chemical vapor deposition and focused ion beam milling. The newly developed CNT-based smart tips, characterized step by step by scanning electron microscopy (SEM) during the fabrication process, demonstrate good performance and provide opportunity for realizing atomic chemical mapping.« less

  8. Environmental radiological monitoring of air, rain, and snow on and near the Hanford Site, 1945-1957

    SciTech Connect (OSTI)

    Hanf, R.W.; Thiede, M.E.

    1994-03-01

    This report is a result of the Hanford Environmental Dose Reconstruction (HEDR) Project. The goal of the HEDR Project is to estimate the radiation dose that individuals could have received from emissions since 1944 at the Hanford Site near Richland, Washington. Members of the HEDR Project`s Environmental Monitoring Data Task have developed databases of historical environmental measurements of such emissions. Hanford documents were searched for information on the radiological monitoring of air, rain, and snow at and near the Hanford Site in Richland, Washington. The monitoring information was reviewed and summarized. The end product is a yearly overview of air, rain, and snow samples as well as ambient radiation levels in the air that were measured from 1945 through 1957. The following information is provided in each annual summary: the media sampled, the constituents (radionuclides) measured/reported, the sampling locations, the sampling frequencies, the sampling methods, and the document references. For some years a notes category is included that contains additional useful information. For the years 1948 through 1957, tables summarizing the sampling locations for the various sample media are also included in the appendix. A large number of documents were reviewed to obtain the information in this report. A reference list is attached to the end of each annual summary. All of the information summarized here was obtained from reports originating at Hanford. These reports are all publicly available and can be found in the Richland Operations Office (RL) public reading room. The information in this report has been compiled without analysis and should only be used as a guide to the original documents.

  9. Rainwater harvesting systems that collect and convey rain-water from roofs to storage tanks are often the best or only

    E-Print Network [OSTI]

    Polz, Martin

    PROBLEM Rainwater harvesting systems that collect and convey rain- water from roofs to storage-yearrecord Rigorous analysis of rainwater harvesting system design can improve reliability and water quality CEE-yield of the rainwater harvesting systems, defining reliability as days per year on which the community's water de- mand

  10. Computer Security Tips for Cyber Monday What could be more convenient than shopping on-line right from your laptop, desktop or mobile

    E-Print Network [OSTI]

    Emmons, Scott

    1 Computer Security Tips for Cyber Monday What could be more convenient than shopping on-line right victim. Here are some "cyber" security tips that can help you to avoid some of these inherent risks when around, you'd still be quite prudent to adopt an approach to cyber security akin to the "defensive

  11. Detailed scanning probe microscopy tip models determined from simultaneous atom-resolved AFM and STM studies of the TiO2(110) surface

    E-Print Network [OSTI]

    Kühnle, Angelika

    scattering theory, we demonstrate how the state of the scanning probe microscopy SPM tip in the experiments may be determined. The analysis of a large number of experimental SPM images recorded with different-AFM and the tunneling current It images on TiO2 110 surface. The exact state of the SPM tip must, therefore

  12. TIPS FOR THE PARKING LOT When you approach your parked vehicle, visually check the area around the

    E-Print Network [OSTI]

    Shoubridge, Eric

    TIPS FOR THE PARKING LOT When you approach your parked vehicle, visually check the area around Always try to park in visible, well lit areas Try to avoid parking next to a larger pickup truck or van." Exercise extra caution when using underground and enclosed parking garages. Try not to go alone. Use

  13. ffe1098 FFE March 7, 2007 21:55 Crack tip displacements of microstructurally small cracks in 316L steel

    E-Print Network [OSTI]

    Cizelj, Leon

    -strain finite element crystal plasticity model. The model consists of 212 randomly shaped, sized and oriented plane. Keywords crack tip displacements; crystal plasticity; polycrystals; small cracks. NOMENCLATURE a) and sliding displacements (CTSD) for single crystal and polycrystal models, considering also different

  14. Energy policies avoiding a tipping point in the climate system Olivier Bahn a,, Neil R. Edwards b

    E-Print Network [OSTI]

    Stocker, Thomas

    emission reduction from today's level, with transition to nuclear and/or renewable energy, possiblyEnergy policies avoiding a tipping point in the climate system Olivier Bahn a,Ã, Neil R. Edwards b rainforest, loss of Arctic summer sea ice, melting of the West Antarctic ice sheet, and a collapse

  15. STUDIES IN MYCOLOGY 55: 1333. 2006. How many species of fungi are there at the tip of Africa?

    E-Print Network [OSTI]

    13 STUDIES IN MYCOLOGY 55: 13­33. 2006. How many species of fungi are there at the tip of Africa, Pretoria, South Africa; 3 Biosystematics Division, ARC Plant Protection Research Institute, P. Bag X134, Queenswood, Pretoria 0121, South Africa; 4 ARC Plant Protection Research Institute, P. Bag X5017

  16. Tips for Babysitting Safely Most poisonings happen in the home and to children under the age of 6. As a

    E-Print Network [OSTI]

    Oliver, Douglas L.

    Tips for Babysitting Safely Most poisonings happen in the home and to children under the age of 6 below can be used to keep the children safe from poisons. What is a poison? A poison is any medicine or product that hurts you if used in the wrong amount, by the wrong person or in the wrong way. Poisons can

  17. Proppant transport in hydraulic fracturing: Crack tip screen-out in KGD and P3D models

    E-Print Network [OSTI]

    Peirce, Anthony

    Proppant transport in hydraulic fracturing: Crack tip screen-out in KGD and P3D models E.V. Dontsov February 2015 Available online 14 March 2015 Keywords: Hydraulic fracturing Proppant transport Numerical, the equations that govern the propagation of hydraulic fractures and the proppant transport inside them

  18. Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue: A fracture mechanics

    E-Print Network [OSTI]

    Ritchie, Robert

    Evolution of crack-tip transformation zones in superelastic Nitinol subjected to in situ fatigue, Berkeley, CA 94720, USA b Stanford Synchrotron Radiation Laboratory, Menlo Park, CA 94025, USA c Nitinol of a growing fatigue crack (100 cycles in situ) in superelastic Nitinol. The results provide some surprising

  19. A Systematic Study of the Formation of Nano-Tips on Silicon Thin Films by Excimer Laser Irradiation

    E-Print Network [OSTI]

    Avrutsky, Ivan

    A Systematic Study of the Formation of Nano-Tips on Silicon Thin Films by Excimer Laser Irradiation cone is formed when a single-crystal silicon film on an insulator substrate is irradiated in air of the laser fluence, the film thickness, and the diameter of the irradiated spot. Atomic force microscopy

  20. TiP: Analyzing Periodic Time Series Patterns Thomas Bernecker, Hans-Peter Kriegel, Peer Kroger, and Matthias Renz

    E-Print Network [OSTI]

    Kriegel, Hans-Peter

    , evolution of stock charts, research on medical behavior of organisms, or analysis and detec- tion of motion of environmental data. 1 Introduction In a large range of application domains, e.g. environmental analysis series. Overall, TiP serves as a framework to effectively and efficiently manage dual- domain time series

  1. Tips for writing well on the Web 1. Write in the inverted pyramid style. Present the most important messages first

    E-Print Network [OSTI]

    Oyet, Alwell

    Tips for writing well on the Web 1. Write in the inverted pyramid style. Present the most important messages first (including your conclusion) and put the rest of the information below. 2. Web content should audience 4. Use the Web to your benefit by layering information on more than one page. Use links to other

  2. Role of negatively charged ions in plasma on the growth and field emission properties of spherical carbon nanotube tip

    SciTech Connect (OSTI)

    Tewari, Aarti; Walia, Ritu; Sharma, Suresh C.

    2012-01-15

    The role of negatively charged ions in plasma on growth (without catalyst) and field emission properties of spherical carbon nanotube (CNT) tip has been theoretically investigated. A theoretical model of charge neutrality, including the kinetics of electrons, negatively and positively charged ions, neutral atoms, and the energy balance of various species has been developed. Numerical calculations of the spherical CNT tip radius for different relative density of negatively charged ions {epsilon}{sub r}(=n{sub SF{sub 6{sup -}}}/n{sub C{sup +}}, where n{sub SF{sub 6{sup -}}} and n{sub C}{sup +} are the equilibrium densities of sulphur hexafluoride and carbon ions, respectively) have been carried out for the typical glow discharge plasma parameters. It is found that the spherical CNT tip radius decreases with {epsilon}{sub r} and hence the field emission of electrons from the spherical CNT tip increases. Some of our theoretical results are in accordance with the existing experimental observations.

  3. Standard test method for crack-tip opening displacement (CTOD) fracture toughness measurement

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    2008-01-01

    1.1 This test method covers the determination of critical crack-tip opening displacement (CTOD) values at one or more of several crack extension events, and may be used to measure cleavage crack initiation toughness for materials that exhibit a change from ductile to brittle behavior with decreasing temperature, such as ferritic steels. This test method applies specifically to notched specimens sharpened by fatigue cracking. The recommended specimens are three-point bend [SE(B)], compact [C(T)], or arc-shaped bend [A(B)] specimens. The loading rate is slow and influences of environment (other than temperature) are not covered. The specimens are tested under crosshead or clip gage displacement controlled loading. 1.1.1 The recommended specimen thickness, B, for the SE(B) and C(T) specimens is that of the material in thicknesses intended for an application. For the A(B) specimen, the recommended depth, W, is the wall thickness of the tube or pipe from which the specimen is obtained. Superficial surface machini...

  4. Unhappy with internal corporate search? : learn tips and tricks for building a controlled vocabulary ontology.

    SciTech Connect (OSTI)

    Arpin, Bettina Karin Schimanski; Jones, Brian S.; Bemesderfer, Joy; Ralph, Mark E.; Miller, Jennifer L

    2010-06-01

    Are your employees unhappy with internal corporate search? Frequent complaints include: too many results to sift through; results are unrelated/outdated; employees aren't sure which terms to search for. One way to improve intranet search is to implement a controlled vocabulary ontology. Employing this takes the guess work out of searching, makes search efficient and precise, educates employees about the lingo used within the corporation, and allows employees to contribute to the corpus of terms. It promotes internal corporate search to rival its superior sibling, internet search. We will cover our experiences, lessons learned, and conclusions from implementing a controlled vocabulary ontology at Sandia National Laboratories. The work focuses on construction of this ontology from the content perspective and the technical perspective. We'll discuss the following: (1) The tool we used to build a polyhierarchical taxonomy; (2) Examples of two methods of indexing the content: traditional 'back of the book' and folksonomy word-mapping; (3) Tips on how to build future search capabilities while building the basic controlled vocabulary; (4) How to implement the controlled vocabulary as an ontology that mimics Google's search suggestions; (5) Making the user experience more interactive and intuitive; and (6) Sorting suggestions based on preferred, alternate and related terms using SPARQL queries. In summary, future improvements will be presented, including permitting end-users to add, edit and remove terms, and filtering on different subject domains.

  5. A study of the ice-water interface using the TIP4P/2005 water model

    E-Print Network [OSTI]

    Jorge Benet; Luis G. MacDowell; Eduardo Sanz

    2014-10-01

    In this work we study the ice-water interface under coexistence conditions by means of molecular simulations using the TIP4P/2005 water model. Following the methodology proposed by Hoyt and co-workers [J. J. Hoyt, M. Asta and A. Karma, Phys. Rev. Lett., 86, 5530, (2001)] we measure the interfacial free energy of ice with liquid water by analysing the spectrum of capillary fluctuations of the interface. We get an orientationally averaged interfacial free energy of 27(2) mN/m, in good agreement with a recent estimate obtained from simulation data of the size of critical clusters [E. Sanz, C. Vega, J. R. Espinosa, R. Caballero-Bernal, J. L. F. Abascal and C. Valeriani, JACS, 135, 15008, (2013)]. We also estimate the interfacial free energy of different planes and obtain 27(2), 28(2)and 28(2) mN/m for the basal, the primary prismatic and the secondary prismatic planes respectively. Finally, we inspect the structure of the interface and find that its thickness is of approximately 4-5 molecular diameters. Moreover, we find that when the basal plane is exposed to the fluid the interface alternates regions of cubic ice with regions of hexagonal ice.

  6. Tip-contact related low-bias negative differential resistance and rectifying effects in benzene–porphyrin–benzene molecular junctions

    SciTech Connect (OSTI)

    Cheng, Jue-Fei; Zhou, Liping E-mail: leigao@suda.edu.cn; Liu, Man; Yan, Qiang; Han, Qin; Gao, Lei E-mail: leigao@suda.edu.cn

    2014-11-07

    The electronic transport properties of benzene–porphyrin–benzene (BPB) molecules coupled to gold (Au) electrodes were investigated. By successively removing the front-end Au atoms, several BPB junctions with different molecule-electrode contact symmetries were constructed. The calculated current–voltage (I–V) curves depended strongly on the contact configurations between the BPB molecules and the Au electrodes. In particular, a significant low-voltage negative differential resistance effect appeared at ?0.3 V in the junctions with pyramidal electrodes on both sides. Along with the breaking of this tip-contact symmetry, the low-bias negative differential resistance effect gradually disappeared. This tip-contact may be ideal for use in the design of future molecular devices because of its similarity with experimental processes.

  7. Steering the Self-Assembly of Octadecylamine Monolayers on Mica by Controlled Mechanical Energy Transfer from the AFM Tip

    SciTech Connect (OSTI)

    Benitez, J.J.; Heredia-Guerrero, J.A.; Salmeron, M.

    2010-06-24

    We have studied the effect of mechanical energy transfer from the tip of an Atomic Force Microscope on the dynamics of self-assembly of monolayer films of octadecylamine on mica. The formation of the self-assembled film proceeds in two successive stages, the first being a fast adsorption from solution that follows a Langmuir isotherm. The second is a slower process of island growth by aggregation of the molecules dispersed on the surface. We found that the dynamics of aggregation can be altered substantially by the addition of mechanical energy into the system through controlled tip-surface interactions. This leads to either the creation of pinholes in existing islands as a consequence of vacancy concentration, and to the assembly of residual molecules into more compact islands.

  8. Process for forming a long gas turbine engine blade having a main wall with a thin portion near a tip

    SciTech Connect (OSTI)

    Campbell, Christian X; Thomaidis, Dimitrios

    2014-05-13

    A process is provided for forming an airfoil for a gas turbine engine involving: forming a casting of a gas turbine engine airfoil having a main wall and an interior cavity, the main wall having a wall thickness extending from an external surface of the outer wall to the interior cavity, an outer section of the main wall extending from a location between a base and a tip of the airfoil casting to the tip having a wall thickness greater than a final thickness. The process may further involve effecting movement, using a computer system, of a material removal apparatus and the casting relative to one another such that a layer of material is removed from the casting at one or more radial portions along the main wall of the casting.

  9. Effect of doping on growth and field emission properties of spherical carbon nanotube tip placed over cylindrical surface

    SciTech Connect (OSTI)

    Santolia, Isha; Tewari, Aarti; Sharma, Suresh C.; Sharma, Rinku

    2014-06-15

    Theoretical investigations to study the effect of doping of hetero-atoms on the growth and field emission properties of Carbon Nanotubes (CNTs) tip placed over a cylindrical surface in complex plasma have been carried out. A theoretical model incorporating kinetics of plasma species such as electron, ions, and neutral atoms including doping elements like nitrogen (N) and boron (B) and energy balance of CNTs in a complex plasma has been developed. The effect of doping elements of N and B on the growth of CNTs, namely, the tip radius has been carried out for typical glow discharge plasma parameters. It is found that N and B as doping elements affect the radius of CNTs extensively. We obtain small radii of CNT doped with N and large radius of CNT doped with B. The field emission characteristics from CNTs have therefore been suggested on the basis of results obtained. Some of theoretical results are in compliance with the existing experimental observations.

  10. Controlling acid rain

    E-Print Network [OSTI]

    Fay, James A.

    1983-01-01

    High concentrations of sulfuric and nitric acid in raTn fn the northeastern USA are caused by the large scale combustion of fossil fuels within this region. Average precipitation acidity is pH 4.2, but spatial and temporal ...

  11. ARM - Datastreams - rain

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments? We wouldDatastreamsnoaaradbrw Documentation XDC documentation DataDatastreamspws

  12. ARM - Instrument - rain

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrn Documentation NOAACRN : XDCgovInstrumentsptr-ms Documentation ARM

  13. ARM - Campaign Instrument - rain

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments? We would love to hear from you! Send us a note below or call us atgovInstrumentsradgovInstrumentsrain

  14. ARM - Cloud and Rain

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments? We would love to hear from you! Send us agovInstrumentswrf-chem Comments? We Outreach

  15. Singin' in the Rain

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D-NicholasReports andRobert(SC)Siegfried

  16. Rotor whirl forces induced by the tip clearance effect in axial flow compressors

    SciTech Connect (OSTI)

    Ehrich, F. )

    1993-10-01

    It is now widely recognized that destabilizing forces, tending to generate forward rotor whirl, are generated in axial flow turbines as a result of the nonuniform torque induced by the nonuniform tip-clearance in a deflected rotor--the so called Thomas/Alford force. It is also recognized that there will be a similar effect in axial flow compressors, but qualitative considerations cannot definitively establish the magnitude or even the direction of the induced whirling forces--that is, if they will tend to forward or backward whirl. Applying a parallel compressor model to simulate the operation of a compressor rotor deflected radially in its clearance, it is possible to derive a quantitative estimate of the proportionality factor [beta] which relates the Thomas/Alford force in axial flow compressors (i.e., the tangential force generated by a radial deflection of the rotor) to the torque level in the compressor. The analysis makes use of experimental data from the GE Aircraft Engines Low Speed Research Compressor facility comparing the performance of three different axial flow compressors, each with four stages (typical of a mid-block of an aircraft gas turbine compressor) at two different clearances. It is found that the value of [beta] is in the range of +0.27 to [minus]0.71 in the vicinity of the stages' nominal operating line and +0.08 to [minus]1.25 in the vicinity of the stages' operation at peak efficiency. The value of [beta] reaches a level of between [minus]1.16 and [minus]3.36 as the compressor is operated near its stalled condition.

  17. Resolving the tips of the tree of life: How much mitochondrialdata doe we need?

    SciTech Connect (OSTI)

    Bonett, Ronald M.; Macey, J. Robert; Boore, Jeffrey L.; Chippindale, Paul T.

    2005-04-29

    Mitochondrial (mt) DNA sequences are used extensively to reconstruct evolutionary relationships among recently diverged animals,and have constituted the most widely used markers for species- and generic-level relationships for the last decade or more. However, most studies to date have employed relatively small portions of the mt-genome. In contrast, complete mt-genomes primarily have been used to investigate deep divergences, including several studies of the amount of mt sequence necessary to recover ancient relationships. We sequenced and analyzed 24 complete mt-genomes from a group of salamander species exhibiting divergences typical of those in many species-level studies. We present the first comprehensive investigation of the amount of mt sequence data necessary to consistently recover the mt-genome tree at this level, using parsimony and Bayesian methods. Both methods of phylogenetic analysis revealed extremely similar results. A surprising number of well supported, yet conflicting, relationships were found in trees based on fragments less than {approx}2000 nucleotides (nt), typical of the vast majority of the thousands of mt-based studies published to date. Large amounts of data (11,500+ nt) were necessary to consistently recover the whole mt-genome tree. Some relationships consistently were recovered with fragments of all sizes, but many nodes required the majority of the mt-genome to stabilize, particularly those associated with short internal branches. Although moderate amounts of data (2000-3000 nt) were adequate to recover mt-based relationships for which most nodes were congruent with the whole mt-genome tree, many thousands of nucleotides were necessary to resolve rapid bursts of evolution. Recent advances in genomics are making collection of large amounts of sequence data highly feasible, and our results provide the basis for comparative studies of other closely related groups to optimize mt sequence sampling and phylogenetic resolution at the ''tips'' of the Tree of Life.

  18. Fermi-level shifts in graphene transistors with dual-cut channels scraped by atomic force microscope tips

    SciTech Connect (OSTI)

    Lin, Meng-Yu [Institute of Electronics, National Taiwan University, Taipei 10617, Taiwan (China); Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan (China); Chen, Yen-Hao [Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Su, Chen-Fung [College of Photonics, National Chiao Tung University, Tainan 71150, Taiwan (China); Chang, Shu-Wei [Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan (China); Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Lee, Si-Chen [Institute of Electronics, National Taiwan University, Taipei 10617, Taiwan (China); Lin, Shih-Yen, E-mail: shihyen@gate.sinica.edu.tw [Institute of Electronics, National Taiwan University, Taipei 10617, Taiwan (China); Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan (China); Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan (China)

    2014-01-13

    We investigate the electronic properties of p-type graphene transistors on silicon dioxide with dual-cut channels that were scraped using atomic force microscope tips. In these devices, the current is forced to squeeze into the path between the two cuts rather than flow directly through the graphene sheet. We observe that the gate voltages with minimum current shift toward zero bias as the sizes of the dual-cut regions increase. These phenomena suggest that the Fermi levels in the dual-cut regions are shifted toward the Dirac points after the mechanical scraping process.

  19. Mini-Buckets: A General Scheme for Bounded Inference

    E-Print Network [OSTI]

    Dechter, Rina

    , AFOSR 900136, Rockwell International and Amada of America. This work was supported in part by NSF grant, producing the best solution found thus far [Horvitz 1987, 1990, Dean and Boddy 1988; Boddy and Dean 1989

  20. Fleet DNA Project Data Summary Report for Bucket Trucks

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journal Article) |Final ReporttheHouseNew venture acceleration Hansen

  1. Can extractive reserves save the rain forest: A ecological and socioeconomic comparison of non-timber forest product extraction systems in Peten, Guatemala, and West Kalimantan, Indonesia

    SciTech Connect (OSTI)

    Salafsky, N.; Dugelby, B.L.; Terborgh, J.W.

    1992-04-01

    Extractive reserves in tropical rain forests, in which only non-timber products are harvested, have been heralded by some conservationists as a means of maintaining biodiversity while providing income for local people. The study of extraction systems in Peten, Guatemala, and in West Kalimantan, Indonesia, leads to a more tempered conclusion, for while the Peten program was quite successful, the Kalimantan program was not. The study finds the success of an extractive reserve to be contingent on: (1) ecological conditions, and (2) socioeconomic and political factors. Although the study focuses on market-oriented extractive reserves, many of the issues discussed apply as well to other land uses such as the collection of non-timber forest products for household consumption or small-scale timber extraction.

  2. Chemical alteration of limestone and marble samples exposed to acid rain and weathering in the eastern United States, 1984--1988

    SciTech Connect (OSTI)

    Reimann, K.J.

    1991-06-01

    In a long-term program that began in 1984, limestone and marble briquettes have been exposed to both anthropogenic acid deposition and natural weathering of four field sites in the eastern United States. Similar tests began at an Ohio site in 1986. Effects of exposure on the briquettes and other materials at the sites are evaluated periodically by several federal agencies cooperating in the National Acid Precipitation Assessment Program (NAPAP). A primary contribution of Argonne National Laboratory to the NAPAP has been chemical analysis to determine changes in the samples caused by exposure to the environment. Wet chemical analysis was used to detect sulfates, nitrates, fluorides, chlorides, and a series of metal cations in sequential layers of stone removed from the briquettes after field exposure. Results from the first four years of the program indicate that rinsing by rain keeps skyward-facing stone relatively clean of reaction products, especially sulfate, the most abundant product. On groundward-facing samples, sulfate concentrations increased linearly with exposure time, and values were proportional to atmospheric SO{sub 2} concentrations at the site. Sulfate concentrations in groundward samples were much higher in limestone than in marble, because of the greater porosity of the limestone. A steep sulfate gradient was seen in both sample types from the surface to the interior. On skyward surfaces, material losses per rain event due to complete dissolution of accumulated sulfates were approximately equal to concentrations measured in runoff. Preexposed limestone samples had sulfate accumulations deep in their interiors, while fresh, unexposed limestone did not. No substantial changes in cation accumulations wee detected in either limestone or marble.

  3. Modeling of electrodes and implantable pulse generator cases for the analysis of implant tip heating under MR imaging

    SciTech Connect (OSTI)

    Acikel, Volkan Atalar, Ergin; Uslubas, Ali

    2015-07-15

    Purpose: The authors’ purpose is to model the case of an implantable pulse generator (IPG) and the electrode of an active implantable medical device using lumped circuit elements in order to analyze their effect on radio frequency induced tissue heating problem during a magnetic resonance imaging (MRI) examination. Methods: In this study, IPG case and electrode are modeled with a voltage source and impedance. Values of these parameters are found using the modified transmission line method (MoTLiM) and the method of moments (MoM) simulations. Once the parameter values of an electrode/IPG case model are determined, they can be connected to any lead, and tip heating can be analyzed. To validate these models, both MoM simulations and MR experiments were used. The induced currents on the leads with the IPG case or electrode connections were solved using the proposed models and the MoTLiM. These results were compared with the MoM simulations. In addition, an electrode was connected to a lead via an inductor. The dissipated power on the electrode was calculated using the MoTLiM by changing the inductance and the results were compared with the specific absorption rate results that were obtained using MoM. Then, MRI experiments were conducted to test the IPG case and the electrode models. To test the IPG case, a bare lead was connected to the case and placed inside a uniform phantom. During a MRI scan, the temperature rise at the lead was measured by changing the lead length. The power at the lead tip for the same scenario was also calculated using the IPG case model and MoTLiM. Then, an electrode was connected to a lead via an inductor and placed inside a uniform phantom. During a MRI scan, the temperature rise at the electrode was measured by changing the inductance and compared with the dissipated power on the electrode resistance. Results: The induced currents on leads with the IPG case or electrode connection were solved for using the combination of the MoTLiM and the proposed lumped circuit models. These results were compared with those from the MoM simulations. The mean square error was less than 9%. During the MRI experiments, when the IPG case was introduced, the resonance lengths were calculated to have an error less than 13%. Also the change in tip temperature rise at resonance lengths was predicted with less than 4% error. For the electrode experiments, the value of the matching impedance was predicted with an error less than 1%. Conclusions: Electrical models for the IPG case and electrode are suggested, and the method is proposed to determine the parameter values. The concept of matching of the electrode to the lead is clarified using the defined electrode impedance and the lead Thevenin impedance. The effect of the IPG case and electrode on tip heating can be predicted using the proposed theory. With these models, understanding the tissue heating due to the implants becomes easier. Also, these models are beneficial for implant safety testers and designers. Using these models, worst case conditions can be determined and the corresponding implant test experiments can be planned.

  4. Self-aligned process for forming microlenses at the tips of vertical silicon nanowires by atomic layer deposition

    SciTech Connect (OSTI)

    Dan, Yaping, E-mail: yaping.dan@sjtu.edu.cn; Chen, Kaixiang [University of Michigan–Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240 (China); Crozier, Kenneth B. [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States)

    2015-01-01

    The microlens is a key enabling technology in optoelectronics, permitting light to be efficiently coupled to and from devices such as image sensors and light-emitting diodes. Their ubiquitous nature motivates the development of new fabrication techniques, since existing methods face challenges as microlenses are scaled to smaller dimensions. Here, the authors demonstrate the formation of microlenses at the tips of vertically oriented silicon nanowires via a rapid atomic layer deposition process. The nature of the process is such that the microlenses are centered on the nanowires, and there is a self-limiting effect on the final sizes of the microlenses arising from the nanowire spacing. Finite difference time domain electromagnetic simulations are performed of microlens focusing properties, including showing their ability to enhance visible-wavelength absorption in silicon nanowires.

  5. Angel wing seals for blades of a gas turbine and methods for determining angel wing seal profiles

    DOE Patents [OSTI]

    Wang, John Zhiqiang (Greenville, SC)

    2003-01-01

    A gas turbine has buckets rotatable about an axis, the buckets having angel wing seals. The seals have outer and inner surfaces, at least one of which, and preferably both, extend non-linearly between root radii and the tip of the seal body. The profiles are determined in a manner to minimize the weight of the seal bodies, while maintaining the stresses below predetermined maximum or allowable stresses.

  6. Water Conservation Tips When washing dishes by hand, don't let the water run while rinsing. Fill one sink with wash water and the

    E-Print Network [OSTI]

    Water Conservation Tips When washing dishes by hand, don't let the water run while rinsing. Fill one sink with wash water and the other with rinse water. Run your washing machine and dishwasher only instead and save gallons every time. For cold drinks keep a pitcher of water in the refrigerator instead

  7. KUALI TIPS FOR CAPITAL ASSETS NEW OBJECT CODES: These are based upon the Funding Source Code. Owner Field shows Title now.

    E-Print Network [OSTI]

    KUALI TIPS FOR CAPITAL ASSETS NEW OBJECT CODES: These are based upon the Funding Source Code 8265 Federal Funded Software over $5K/CSU Title 3 8510 8270 County Extension Shared Cost/CSU Title 8280 Art Museum Objects #12; 8700 8300 Furniture/Fixture LA/LP/CSU Title Capital

  8. Improved Patency of Transjugular Intrahepatic Portosystemic Shunt: The Efficacy of Cilostazol for the Prevention of Pseudointimal Hyperplasia in Swine TIPS Models

    SciTech Connect (OSTI)

    Park, Sang Woo [Konkuk University Hospital, Konkuk University School of Medicine, Department of Diagnostic Radiology (Korea, Republic of)], E-mail: psw0224@kku.ac.kr; Cha, In Ho [Korea University Guro Hospital, Korea University School of Medicine, Department of Diagnostic Radiology (Korea, Republic of); Kim, Chul Hwan [Korea University Hospital, Korea University School of Medicine, Department of Pathology (Korea, Republic of); Jeon, Hae Jeong; Park, Jeong Hee [Konkuk University Hospital, Konkuk University School of Medicine, Department of Diagnostic Radiology (Korea, Republic of); Hong, Suk Joo [Korea University Guro Hospital, Korea University School of Medicine, Department of Diagnostic Radiology (Korea, Republic of); Lee, In Sik [Konkuk University Hospital, Konkuk University School of Medicine, Department of Rehabilitation Medicine (Korea, Republic of)

    2007-07-15

    Purpose. To investigate the efficacy of oral administration of cilostazol to inhibit pseudointimal/intimal hyperplasia in swine TIPS models. Methods. Successful TIPS creation was carried out in 11 of 12 healthy young pigs (20-25 kg). In the treatment group (n = 6), both cilostazol and aspirin were administered daily, from the first day of TIPS creation. The control group (n = 5) was administered only aspirin. The animals were followed-up for 2 weeks and then killed. The specimen (including portal vein, hepatic parenchymal tract, hepatic vein, and inferior vena cava) and stents were carefully bisected in a longitudinal fashion. The control group was compared with the treatment group by means of a gross and histologic evaluation of the degree of pseudointimal/intimal hyperplasia in the shunt. Results. At the gross evaluation, the control group showed considerably more pseudointimal/intimal hyperplasia than the treatment group. Using microscopic evaluation, there was a statistically significant difference (p < 0.05) in the mean maximum pseudointimal/intimal hyperplasia thickness between the control group (2.97 {+-} 0.33 mm) and treatment group (0.73 {+-} 0.27 mm). Conclusion. Oral administration of cilostazol may have been effective in reducing pseudointimal/intimal hyperplasia in swine TIPS models.

  9. Blackboard Test Taking tips Very important: If your instructor gives you a time block of one, two, or several days to complete

    E-Print Network [OSTI]

    Barrash, Warren

    Blackboard Test Taking tips Very important: If your instructor gives you a time block of one, two instructor might also be less sympathetic. Before you start the test: · Be certain that you are ready to take the test & set aside time in which you will be free from interruptions BEFORE clicking on the link

  10. Fig. 1: (a) Tuning fork resonator with two electromechanical transistors on the outer tips of the nano-resonator, i.e. boxed region on the left.

    E-Print Network [OSTI]

    Ludwig-Maximilians-Universität, München

    Fig. 1: (a) Tuning fork resonator with two electromechanical transistors on the outer tips of the transistor: evaporated gold contacts on single crytalline silicon (purple) with spring constants k+/- . Nano-Electromechanical as a phase sensitive bi-polar current switch. Index Terms -- Nanotechnology, nano-electromechanical systems

  11. Tips for Working with Microsoft Word Forms NVLAP has converted several of its most used on-site assessment forms to Microsoft Word

    E-Print Network [OSTI]

    Tips for Working with Microsoft Word Forms NVLAP has converted several of its most used on-site assessment forms to Microsoft Word forms to allow you to fill out the forms on your computer. There are both advantages and disadvantages to Word forms that you should be aware of when deciding whether to use the form

  12. Does extrusion occur at both tips of the Taiwan collision belt? Insights from active deformation studies in the Ilan Plain and Pingtung Plain regions

    E-Print Network [OSTI]

    Lee, Jian-Cheng

    Does extrusion occur at both tips of the Taiwan collision belt? Insights from active deformation Institut Universitaire de France France c Institute of Applied Geosciences, National Taiwan Ocean University, Keelung, Taiwan, ROC d Institute of Oceanography, National Taiwan University, Taipei, Taiwan, ROC

  13. Scanning capacitance spectroscopy of an AlxGa1xNGaN heterostructure field-effect transistor structure: Analysis of probe tip effects

    E-Print Network [OSTI]

    Yu, Edward T.

    are recorded as a function probe position. While qualitative interpretation of SCM images and SCS spectra structure: Analysis of probe tip effects D. M. Schaadt and E. T. Yua) Department of Electrical and Computer is in many instances well un- derstood, quantitative interpretation of SCM results requires careful analysis

  14. VOLUME 82, NUMBER 20 P H Y S I C A L R E V I E W L E T T E R S 17 MAY 1999 Near-Field Fluorescence Microscopy Based on Two-Photon Excitation with Metal Tips

    E-Print Network [OSTI]

    Xie, Xiaoliang Sunney

    . The interpretation of the contrast in the recorded images is difficult. In this Letter, we use the metal tip with femtosecond laser pulses of proper polarization. The strongly enhanced electric field at the metal tip ( 15 nm

  15. Remote optical sensing on the nanometer scale with a bowtie aperture nano-antenna on a SNOM fiber tip

    E-Print Network [OSTI]

    Atie, Elie M; Eter, Ali El; Salut, Roland; Nedeljkovic, Dusan; Tannous, Tony; Baida, Fadi I; Grosjean, Thierry

    2015-01-01

    Plasmonic nano-antennas have proven the outstanding ability of sensing chemical and physical processes down to the nano-meter scale. Sensing is usually achieved within the highly confined optical fields generated resonantly by the nano-antennas, i.e. in contact to the nano-structures. In these paper, We demonstrate the sensing capability of nano-antennas to their larger scale environment, well beyond their plasmonic confinement volume, leading to the concept of 'remote' (non contact) sensing on the nano-meter scale. On the basis of a bowtie-aperture nano-antenna (BNA) integrated at the apex of a SNOM fiber tip, we introduce an ultra-compact, move-able and background-free optical nano-sensor for the remote sensing of a silicon surface (up to distance of 300 nm). Sensitivity of the BNA to its large scale environment is high enough to expect the monitoring and control of the spacing between the nano-antenna and a silicon surface with sub-nano-meter accuracy. This work paves the way towards a new class of nano-po...

  16. Symmetry breaking and electrical frustration during tip-induced polarization switching in the non-polar cut of lithium niobate single crystals

    SciTech Connect (OSTI)

    Ievlev, Anton; Alikin, Denis O; Morozovska, A. N.; Varenyk, O. V.; Eliseev, E. A.; Kholkin, Andrei; Shur, Vladimir Ya.; Kalinin, Sergei V

    2015-01-01

    Polarization switching in ferroelectric materials is governed by a delicate interplay between bulk polarization dynamics and screening processes at surfaces and domain walls. Here we explore the mechanism of tip-induced polarization switching in the non-polar cuts of uniaxial ferroelectrics. In this case, in-plane component of polarization vector switches, allowing for detailed observations of resultant domain morphologies. We observe surprising variability of resultant domain morphologies stemming from fundamental instability of formed charged domain wall and associated electric frustration. In particular, we demonstrate that controlling vertical tip position allows the polarity of the switching to be controlled. This represents very unusual form of symmetry breaking where mechanical motion in vertical direction controls the lateral domain growth. The implication of these studies for ferroelectric devices and domain wall electronics are discussed.

  17. Aerodynamics and Heat Transfer Studies of Parameters Specific to the IGCC-Requirements: Endwall Contouring, Leading Edge and Blade Tip Ejection under Rotating Turbine Conditions

    SciTech Connect (OSTI)

    Schobeiri, Meinhard; Han, Je-Chin

    2014-09-30

    This report deals with the specific aerodynamics and heat transfer problematic inherent to high pressure (HP) turbine sections of IGCC-gas turbines. Issues of primary relevance to a turbine stage operating in an IGCC-environment are: (1) decreasing the strength of the secondary flow vortices at the hub and tip regions to reduce (a), the secondary flow losses and (b), the potential for end wall deposition, erosion and corrosion due to secondary flow driven migration of gas flow particles to the hub and tip regions, (2) providing a robust film cooling technology at the hub and that sustains high cooling effectiveness less sensitive to deposition, (3) investigating the impact of blade tip geometry on film cooling effectiveness. The document includes numerical and experimental investigations of above issues. The experimental investigations were performed in the three-stage multi-purpose turbine research facility at the Turbomachinery Performance and Flow Research Laboratory (TPFL), Texas A&M University. For the numerical investigations a commercial Navier-Stokes solver was utilized.

  18. Practical tip: Chicago Sky Blue (CSB) stain can be added to the routine potassium hydroxide (KOH) wet-mount to provide a color contrast and facilitate the diagnosis of dermatomycoses

    E-Print Network [OSTI]

    Lim, Christopher Seng-Hong; Lim, Siew-Lin

    2011-01-01

    albicans . CSB stain shows the blue and pink budding yeastsand stains pink or light blue (Figure 4). More intensePractical tip: Chicago Sky Blue (CSB) stain can be added to

  19. A ACID RAIN Audrey Gibson

    E-Print Network [OSTI]

    Toohey, Darin W.

    account for about 70 percent of annual SO2 emissions and 30 percent of NOx emissions in the United States acid and nitric acid. Sunlight increases the rate of most of these reactions. Electric utility plants and NOx are harmful to the lungs and can cause disease and premature death. Thursday, April 29, 2010 #12

  20. ARM - Lesson Plans: Acid Rain

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrnBarrow, Alaska Outreach Home Room News Publications TraditionalPlans OutreachAcid

  1. Carbon Monoxide Safety Tips 

    E-Print Network [OSTI]

    Shaw, Bryan W.; Garcia, Monica L.

    1999-07-26

    problems can stem from a number of common sources?automo- biles, furnaces, water heaters, fireplaces, wood stoves, charcoal grills, gas ranges, space heaters and portable generators. Serious problems can develop when these appliances are not in good working... from one type to another without proper knowledge, skills and tools. 3 Never use a gas range, oven or clothes dryer for heating your home. 3 Never operate unvented gas-burning appli- ances, such as kerosene or natural gas space heaters, in a closed room...

  2. Water Conservation Tips

    E-Print Network [OSTI]

    Brown, Martha

    2008-01-01

    Water Needs breath. Adding compost to sandy soils helps thesoil retain water longer—the compost acts like a sponge,from applications of compost and other organic matter. For

  3. TIP #: Project Name

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainableDEPARTMENT OF ENERGY OfficebResponse: Heat

  4. Gas-Saving Tips

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center Home PageBlender PumpVehiclesThe Heat Is andFederalFuel

  5. Microsoft PowerPoint - 7_MARY_MCCDONNELL_JOHN_BALLARD_Tips for REporting requirements_presentations_4-29-14.ppt [Compatibility

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal01 Sandia4) AugustA. -71-3Overview ofAgreements forUpdate:Tips for

  6. Carrier DNA For Yeast Transformation Preparation of high molecular weight single stranded carrier DNA for yeast transformations.

    E-Print Network [OSTI]

    Aris, John P.

    minute pulses. Chill on ice for 1 minute in between. The DNA solution should not heat above room into ice bucket to cool quickly. Keep on ice. This denaturation step also sterilizes the DNA. 10. Freeze to collect solution at bottom of tube. Place on ice. 3. Sonicate DNA solution in tube with tip sonifier

  7. A model study of the effect of bucket dentations on a ski-jump spillway jet: with a mathematical analysis of critical bucket radius determination. 

    E-Print Network [OSTI]

    Gladwell, John Stuart

    1961-01-01

    of 8s 8s reduction of velocity or increase of depth from point Qlto point Q2 was also a function of R; however, it should be noticed that the function 8V ttg PC)i ~1 g t' 8s Actually, however, the basic assumption made does not apply. That is... the darn to a point 1, 2, 14 where there is no danger to the dam due to erosion. ' ' The shape is such that the water falls with much diminished energy. Economy and safety are two of its advantages, if it is used in the proper 3 xnanner. A few...

  8. The Tip of the red giant branch distance to the perfect spiral galaxy M74 hosting three core-collapse supernovae

    SciTech Connect (OSTI)

    Sung Jang, In; Gyoon Lee, Myung, E-mail: isjang@astro.snu.ac.kr, E-mail: mglee@astro.snu.ac.kr [Astronomy Program, Department of Physics and Astronomy, Seoul National University, Gwanak-gu, Seoul 151-742 (Korea, Republic of)

    2014-09-01

    M74 (NGC 628) is a famous face-on spiral galaxy, hosting three core-collapse supernovae (SNe): SN Ic 2002ap, SN II-P 2003gd, and SN II-P 2013ej. However, its distance is not well known. We present a distance estimation for this galaxy based on the Tip of the Red Giant Branch (TRGB) method. We obtain photometry of the resolved stars in the arm-free region of M74 from F555W and F814W images in the Hubble Space Telescope archive. The color-magnitude diagram of the resolved stars shows a dominant red giant branch (RGB) as well as blue main sequence stars, red helium burning stars, and asymptotic giant branch stars. The I-band luminosity function of the RGB stars shows the TRGB to be at I {sub TRGB} = 26.13 ± 0.03 mag, and T {sub RGB} = 25.97 ± 0.03. From this, we derive the distance modulus to M74 to be 30.04 ± 0.04 (random) ± 0.12 (systematic) (corresponding to a linear distance of 10.19 ± 0.14 ± 0.56 Mpc). With this distance estimate, we calibrate the standardized candle method for SNe II-P. From the absolute magnitudes of SN 2003gd, we derive a value of the Hubble constant, H {sub 0} = 72 ± 6 (random) ± 7 (systematic) km s{sup –1} Mpc{sup –1}. It is similar to recent estimates based on the luminosity calibration of Type Ia supernovae.

  9. The Bucket List Getting rid of lab waste? Here's how to dispose of it.

    E-Print Network [OSTI]

    Chan, Hue Sun

    Laboratory Plastic Tote Radioactive Solid Waste Container Chemical Waste Pail Biohazard Waste Pail Recycling or Radioactive waste · Purchased by lab · Uncontaminated laboratory plastics (triple rinsed) · No hazardous contaminated with toxins requiring incineration · Biobags, provided by DCM can be used to transport tissues

  10. The Selection of the Token Bucket Parameters in the IETF Guaranteed Service Class

    E-Print Network [OSTI]

    Dovrolis, Constantinos

    infrastructure. The amount of Internet traffic has exceeded the telephony traffic in certain transcontinental

  11. Cover Heated, Open Vessels, Energy Tips: STEAM, Steam Tip Sheet...

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

    9 Cover Heated, Open Vessels Open vessels that contain heated liquids often have high heat loss due to surface evaporation. Both energy and liquid losses are reduced by covering...

  12. Inspect and Repair Steam Traps, Energy Tips: STEAM, Steam Tip...

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

    installed steam traps may have failed-thus allowing live steam to escape into the condensate return system. In systems with a regularly scheduled maintenance program, leaking...

  13. Minimize Boiler Blowdown, Energy Tips: STEAM, Steam Tip Sheet...

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

    to identify energy- saving opportunities. Examine operating practices for boiler feedwater and blowdown rates developed by the American Society of Mechanical Engineers...

  14. Return Condensate to the Boiler, Energy Tips: STEAM, Steam Tip...

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

    Actions Reduce operating costs through maximizing the return of hot condensate to the boiler. Consider the following actions: If a condensate return system is absent,...

  15. 2013 NASFAA 1 Military and Veterans Tips Tip Sheet for

    E-Print Network [OSTI]

    and will be starting college soon. My dad, an Army officer, died in Iraq in 2007. I just filed a FAFSA on the Web programs for students like me? Yes. You may be eligible to receive an Iraq and Afghanistan Service Grant your parent or guardian died as a result of military service in Iraq or Afghanistan after 9/11/01 while

  16. Tips: Insulation | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us Shirley AnnResources Technical ofThe InsideDepartmentThrift

  17. Tips: Insulation | Department of Energy

    Office of Environmental Management (EM)

    for recommendations. Be careful how close you place insulation next to a recessed light fixture-unless it is insulation contact (IC) rated-to avoid a fire hazard. See the...

  18. Tips: Appliances | Department of Energy

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

    use them efficiently. What's a Kilowatt? When you use electricity to power a 1000-watt vacuum for 1 hour, you use 1,000 watt-hours (1,000 Wh) of electricity One thousand...

  19. Tips for Preparing SES Applications

    Broader source: Energy.gov [DOE]

    A well- written resume is critical when applying to Resume Based vacancy announcements for Senior Executive Service (SES) positions.  Your resume needs to demonstrate your leadership/managerial...

  20. Tips: Windows | Department of Energy

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

    attractive features. Windows provide views, daylighting, ventilation, and heat from the sun in the winter. Unfortunately, they can also account for 10% to 25% of your heating bill...

  1. Interviewing Tips by Betty Robbins

    E-Print Network [OSTI]

    customer's needs. Do research on companies. Have questions prepared. Use Career Center web searches to get

  2. Ceramic blade with tip seal

    DOE Patents [OSTI]

    Glezer, Boris (Del Mar, CA); Bhardwaj, Narender K. (San Diego, CA); Jones, Russell B. (San Diego, CA)

    1997-01-01

    The present gas turbine engine (10) includes a disc assembly (64) defining a disc (66) having a plurality of blades (70) attached thereto. The disc (66) has a preestablished rate of thermal expansion and the plurality of blades have a preestablished rate of thermal expansion being less than the preestablished rate of thermal expansion of the disc (66). A shroud assembly (100) is attached to the gas turbine engine (10) and is spaced from the plurality of blades (70) a preestablished distance forming an interface (108) therebetween. Positioned in the interface is a seal (110) having a preestablished rate of thermal expansion being generally equal to the rate of thermal expansion of the plurality of blades (70).

  3. Ceramic blade with tip seal

    DOE Patents [OSTI]

    Glezer, B.; Bhardwaj, N.K.; Jones, R.B.

    1997-08-05

    The present gas turbine engine includes a disc assembly defining a disc having a plurality of blades attached thereto. The disc has a preestablished rate of thermal expansion and the plurality of blades have a preestablished rate of thermal expansion being less than the preestablished rate of thermal expansion of the disc. A shroud assembly is attached to the gas turbine engine and is spaced from the plurality of blades a preestablished distance forming an interface there between. Positioned in the interface is a seal having a preestablished rate of thermal expansion being generally equal to the rate of thermal expansion of the plurality of blades. 4 figs.

  4. Tips for Daylighting with Windows

    SciTech Connect (OSTI)

    Robinson, Alastair; Selkowitz, Stephen

    2013-10-01

    These guidelines provide an integrated approach to the cost-effective design of perimeter zones in new commercial buildings and existing building retrofits. They function as a quick reference for building designers, through a set of easy steps and rules-of-thumb, emphasizing “how-to” practical details. References are given to more detailed sources of information, should the reader wish to go further. The design method used in this document emphasizes that building decisions should be made within the context of the whole building as a single functioning system rather than as an assembly of distinct parts. This integrated design approach looks at the ramifications of each individual system decision on the whole building. For example, the decision on glazing selection will have an effect on lighting, mechanical systems, and interior design. Therefore, the entire design team should participate and influence this glazing decision—which typically rests with the architect alone. The benefit of an integrated design approach is a greater chance of success towards long-term comfort and sustained energy savings in the building.

  5. Top 10 Tips Academic Success

    E-Print Network [OSTI]

    Mayeli, Azita

    requirements for your major and review your course selection each semester with an academic advisor to avoid, these include the Student Handbook, available at the Information Services Center, and the College Catalog course material, visit the Atrium Learning Center (AG 18), to work with a tutor or use computerized

  6. Tips: References | Department of Energy

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

    with ENERGY STAR." (2013). ENERGY STAR. Accessed October 2013. "Air Source Heat Pumps and Central Air Conditioners Key Product Criteria." (2013). ENERGY STAR. Accessed September...

  7. Tips: References | Department of Energy

    Energy Savers [EERE]

    September 2013. "Clothes Washers." (2013). ENERGY STAR. Accessed September 2013. "Computers." (2013). ENERGY STAR. Accessed September 2013. "Diesel Vehicles." (2013)....

  8. Tips: Laundry | Department of Energy

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

    estimates that just cleaning the lint screen before each and every load of laundry can save you an average of 34 per year. | Photo courtesy of iStockphoto.comKameleon007...

  9. TIP: Be su rmational In

    E-Print Network [OSTI]

    Bertini, Robert L.

    of contac or what a par xperience. It tions in the a ducation, and workers or an viewing. ou would like

  10. Tips for Successful Consultation Meetings

    E-Print Network [OSTI]

    US Army Corps of Engineers

    protect cultural/natural resources when possible promote economic capacity #12; Tribal Liaison know your Tribal contacts plan meeting with Tribal input provide project info beforehand

  11. Seasonal Tips | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics »ApplicationEnergyEnvironmentalNuclearMoney During the AirScienceDepartment

  12. SRI2007 Conference - Travel Tips

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein1-0845*RV6 Commercial value of4 Hidden1999 HomeTravel

  13. Winter Safety Information & Tips

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyThe U.S.Lacledeutilities.Energy Thefull swing, andWindEnergyDrew Bittner7 1

  14. XE6_Tips_022011.pptx

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos Alamos verifies largest single Micropulse lidar cloudZCSPDFor m ost

  15. XE6_Tips_09302010.pptx

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLos Alamos verifies largest single Micropulse lidar cloudZCSPDFor m

  16. Tips: Windows | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobsMotionHeatEnergy Solar Training for VeteransRenewableMeters

  17. Tips: Insulation | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of EnergyResearchers at theAugust 1, 2013the NewKeep Your Home Officeto

  18. Tips: Landscaping | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of EnergyResearchers at theAugust 1, 2013the NewKeep Your

  19. Tips: Laundry | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment of EnergyResearchers at theAugust 1, 2013the NewKeep YourSave energy and

  20. Tips: Appliances | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 Timeline of Events: 1938-1950 August