National Library of Energy BETA

Sample records for include wood black

  1. PROJECT SUMMARY Wood-decaying Agaricomycetes (Basidiomycota) include diverse polypores, gilled mushrooms,

    E-Print Network [OSTI]

    Hibbett, David S.

    PROJECT SUMMARY Wood-decaying Agaricomycetes (Basidiomycota) include diverse polypores, gilled production. Understanding of the higher-level relationships of wood-decaying Agaricomycetes has advanced. This project will perform monographic research and training in two major groups of wood-decaying Agaricomycetes

  2. Efficient Evaluation of Doubly Periodic Green Functions in 3D Scattering, Including Wood Anomaly Frequencies

    E-Print Network [OSTI]

    Oscar P. Bruno; Stephen P. Shipman; Catalin Turc; Stephanos Venakides

    2013-07-04

    We present efficient methods for computing wave scattering by diffraction gratings that exhibit two-dimensional periodicity in three dimensional (3D) space. Applications include scattering in acoustics, electromagnetics and elasticity. Our approach uses boundary-integral equations. The quasi-periodic Green function is a doubly infinite sum of scaled 3D free-space outgoing Helmholtz Green functions. Their source points are located at the nodes of a periodicity lattice of the grating. For efficient numerical computation of the lattice sum, we employ a smooth truncation. Super-algebraic convergence to the Green function is achieved as the truncation radius increases, except at frequency-wavenumber pairs at which a Rayleigh wave is at exactly grazing incidence to the grating. At these "Wood frequencies", the term in the Fourier series representation of the Green function that corresponds to the grazing Rayleigh wave acquires an infinite coefficient and the lattice sum blows up. At Wood frequencies, we modify the Green function by adding two types of terms to it. The first type adds weighted spatial shifts of the Green function to itself with singularities below the grating; this yields algebraic convergence. The second-type terms are quasi-periodic plane wave solutions of the Helmholtz equation. They reinstate (with controlled coefficients) the grazing modes, effectively eliminated by the terms of first type. These modes are needed in the Green function for guaranteeing the well-posedness of the boundary-integral equation that yields the scattered field. We apply this approach to acoustic scattering by a doubly periodic 2D grating near and at Wood frequencies and scattering by a doubly periodic array of scatterers away from Wood frequencies.

  3. Decision-maker's guide to wood fuel for small industrial energy users. Final report. [Includes glossary

    SciTech Connect (OSTI)

    Levi, M. P.; O'Grady, M. J.

    1980-02-01

    The technology and economics of various wood energy systems available to the small industrial and commercial energy user are considered. This book is designed to help a plant manager, engineer, or others in a decision-making role to become more familiar with wood fuel systems and make informed decisions about switching to wood as a fuel. The following subjects are discussed: wood combustion, pelletized wood, fuel storage, fuel handling and preparation, combustion equipment, retrofitting fossil-fueled boilers, cogeneration, pollution abatement, and economic considerations of wood fuel use. (MHR)

  4. Wood products What is wood?

    E-Print Network [OSTI]

    Slik, Ferry

    Products Particleboard sheets of woods consisting of small wood pieces Production - Wood chipping - Sorting Fiberboard sheets of wood produced from wood fibers (often feels a bit papery) Production - Wood chips for horizontal connections Functions - Protection (secondary compounds) - Horizontal transport - Storage The rays

  5. Generating power with waste wood

    SciTech Connect (OSTI)

    Atkins, R.S.

    1995-02-01

    Among the biomass renewables, waste wood has great potential with environmental and economic benefits highlighting its resume. The topics of this article include alternate waste wood fuel streams; combustion benefits; waste wood comparisons; waste wood ash; pilot scale tests; full-scale test data; permitting difficulties; and future needs.

  6. Cord Wood Testing in a Non-Catalytic Wood Stove

    SciTech Connect (OSTI)

    Butcher, T.; Trojanowski, R.; Wei, G.

    2014-06-30

    EPA Method 28 and the current wood stove regulations have been in-place since 1988. Recently, EPA proposed an update to the existing NSPS for wood stove regulations which includes a plan to transition from the current crib wood fuel to cord wood fuel for certification testing. Cord wood is seen as generally more representative of field conditions while the crib wood is seen as more repeatable. In any change of certification test fuel, there are questions about the impact on measured results and the correlation between tests with the two different fuels. The purpose of the work reported here is to provide data on the performance of a noncatalytic stove with cord wood. The stove selected has previously been certified with crib wood which provides a basis for comparison with cord wood. Overall, particulate emissions were found to be considerably higher with cord wood.

  7. 1Wood Borer --WB-XX-W Department of Entomology

    E-Print Network [OSTI]

    Pittendrigh, Barry

    1Wood Borer -- WB-XX-W WB-04-W Department of Entomology America's Least Wanted Wood-Borers BLACK living trees. The wood- boring larvae cause structural damage that may make the trees susceptible). (Photo credit: Stanislaw Kinelski, Bugwood.org) #12;1-888-EXT-INFO · www.extension.purdue.edu 2Wood Borer

  8. Iron line profiles including emission from within the innermost stable orbit of a black hole accretion disc

    E-Print Network [OSTI]

    A. J. Young; R. R. Ross; A. C. Fabian

    1998-08-10

    Reynolds & Begelman (1997) have recently proposed a model in which the broad and extremely redshifted iron line seen during a deep minimum of the light curve of the Seyfert 1 galaxy MCG-6-30-15 originates from matter spiralling into a Schwarzschild black hole, contrary to previous claims that the black hole may be spinning rapidly (Iwasawa et al 1996; Dabrowski et al 1997). Here we calculate in detail the X-ray spectrum produced by their model using the full reflected continuum emission, including absorption features. This calculation takes into account the doppler and relativistic effects. For the range of parameters we consider, we find that the spectrum should show a large photoelectric absorption edge of iron, which is not seen in the data. The absorption edge is a consequence of the line emitting matter within the innermost stable orbit being highly ionized, and is largely independent of the parameters chosen for their model. If we restrict our attention to the 3-10 keV band we may effectively remove this absorption edge by fitting a steeper power law, but this results in a significant underprediction of the 0.4-0.5 keV flux. We conclude that the data on MCG-6-30-15 are more consistent with the Kerr than the Schwarzschild model.

  9. Transportation fuels from wood

    SciTech Connect (OSTI)

    Baker, E.G.; Elliott, D.C.; Stevens, D.J.

    1980-01-01

    The various methods of producing transportation fuels from wood are evaluated in this paper. These methods include direct liquefaction schemes such as hydrolysis/fermentation, pyrolysis, and thermochemical liquefaction. Indirect liquefaction techniques involve gasification followed by liquid fuels synthesis such as methanol synthesis or the Fischer-Tropsch synthesis. The cost of transportation fuels produced by the various methods are compared. In addition, three ongoing programs at Pacific Northwest Laboratory dealing with liquid fuels from wood are described.

  10. Wood Curriculum vitae 1 ERIC MATTHEW WOOD

    E-Print Network [OSTI]

    Turner, Monica G.

    Wood ­ Curriculum vitae 1 ERIC MATTHEW WOOD Spatial Analysis for Conservation and Department. C. Radeloff, C. A. Lepczyk, E. M. Wood, S. I. Stewart, and R. B. Hammer. Systematic temporal

  11. Processes change the look of wood fuel

    SciTech Connect (OSTI)

    Zerbe, J.I.

    1980-06-01

    The various forms of wood-derived fuels are reviewed, these include briquetted and pelleted wood products. Charcoal, obtained by pyrolysis has a heating value one and a half times the equivalent weight of the dry wood from which it was made. By process modifications, more oil and gas may be produced instead of charcoal. At Albany, Oregon two barrels of oil are produced daily by hydrogenation of one ton of dry wood chips. It is stated that methanol can be synthesized from solid wood - by wood gasification - with a 38% energy efficiency while ethanol can also be made from wood. The use of wood fuels for electric power generation and cogeneration are also mentioned.

  12. Processes change the look of wood fuel

    SciTech Connect (OSTI)

    Zerbe, J.I.

    1980-06-01

    The various forms of wood-derived fuels are reviewed; these include briquetted and pelleted wood products. Charcoal, obtained by pyrolysis has a heating value one and a half times the equivalent weight of the dry wood from which it was made. By process modifications, more oil and gas may be produced instead of charcoal. At Albany, Oregon two barrels of oil are produced daily by hydrogenation of one ton of dry wood chips. It is stated that methanol can be synthesized from solid wood - by wood gasification - with a 38% energy efficiency while ethanol can also be made from wood. The use of wood fuels for electric power generation and cogeneration are also mentioned.

  13. FRACTURE TOUGHNESS OF WOOD AND WOOD COMPOSITES

    E-Print Network [OSTI]

    Nairn, John A.

    FRACTURE TOUGHNESS OF WOOD AND WOOD COMPOSITES DURING CRACK PROPAGATION Noah Matsumoto Structural, USA * Corresponding author: John.Nairn@oregonstate.edu SWST member #12;Fracture Toughness of Wood and Wood Composites During Crack Propagation ABSTRACT The mode I fracture toughness as a function of crack

  14. NUMERICAL SIMULATIONS OF TRANSVERSE COMPRESSION AND DENSIFICATION IN WOOD

    E-Print Network [OSTI]

    Nairn, John A.

    NUMERICAL SIMULATIONS OF TRANSVERSE COMPRESSION AND DENSIFICATION IN WOOD John A. Nairn1 Professor- terials is a useful tool for stress analysis and for failure modeling. Although FEA of wood as an anisotropic continuum is used, numerical modeling of realistic wood structures, including details of wood

  15. STOICHIOMETRY OF WOOD LIQUEFACTION

    E-Print Network [OSTI]

    Davis, Hubert G.

    2013-01-01

    co 2 By decomposition to (2) - 0 in H cf 0 in wood TABLE VForced Balance - Wood to Char Output - 55 lbs char lbsuc -61 STOICHIOMETRY OF WOOD LIQUEFACTION Hubert G. Davis

  16. A review of "The Life of Anthony Wood In His Own Words" edited by Nicholas Kiessling 

    E-Print Network [OSTI]

    Paleit, Edward

    2011-01-01

    , polished and retro- spective account of its author?s experiences, written towards the very end of his life and after the works which made his reputation, the Historia et Antiquitates Universitatis Oxoniensis (1674) and Athenae Oxonienses and Fasti (1691..., such as were used in 154 ???????????-??????? ???? the raigne of King James I? and dressed ?in his black-Ta?aty cloak, edg?d with black lace at the bottom? (105-06). In later parts Wood touches on the pre-publication travails of the Historia, including...

  17. SYNTHESIS Towards a worldwide wood economics spectrum Jerome Chave,1

    E-Print Network [OSTI]

    Chave, Jérôme

    to intercept a large proportion of solar radiation and puts itself at strong selective advantage (Falster wood functional traits, including the largest wood density database to date (8412 taxa), mechanical

  18. Solvolytic liquefaction of wood under mild conditions

    SciTech Connect (OSTI)

    Yu, S.M.

    1982-04-01

    Conversion of wood to liquid products requires cleavage of bonds which crosslink the wood structure. This study examines a low-severity wood solubilization process utilizing a solvent medium consisting of a small amount of sulfuric acid and a potentially wood-derivable alcohol. In one half hour of reaction time at 250/sup 0/C under 15 psia starting nitrogen pressure, over 95% of the wood (maf) was rendered acetone-soluble. The product is a soft, black, bitumen-like solid at room temperature but readily softens at 140/sup 0/C. Between 25 and 50% of the original wood oxygen, depending on alcohol used, was removed as water. Approximately 2 to 17% of the alcohols were retained in the product. Gel permeation chromatography showed that the product's median molecular weight is around 300. Based on experimental and literature results, a mechanism for wood solubilization is proposed. This involves protonation of the etheric oxygen atoms, leading to subsequent bond scission to form carbonium ions which are stabilized by solvent alkoxylation. At severe conditions, polymerization and condensation reactions result in acetone-insoluble materials.

  19. Relative Leaching and Aquatic Toxicity of Pressure-Treated Wood

    E-Print Network [OSTI]

    Florida, University of

    Relative Leaching and Aquatic Toxicity of Pressure-Treated Wood Products Using Batch Leaching Tests leaching tests. The wood preservatives included chromated copper arsenate (CCA), alkaline copper quaternary, copper boron azole, copper citrate, and copper dimeth- yldithiocarbamate. An unpreserved wood sample

  20. WOOD PRODUCTS AND UTILIZATION

    E-Print Network [OSTI]

    WOOD PRODUCTS AND UTILIZATION V #12;#12;443USDA Forest Service Gen. Tech. Rep. PSW-GTR-160. 1997. Section Overview Wood Products and Utilization1 John R. Shelly2 Forests are obviously a very important asset to California, and their economic and social value to the state is well documented. Wood

  1. Alaska Wood Biomass Energy Project Final Report

    SciTech Connect (OSTI)

    Jonathan Bolling

    2009-03-02

    The purpose of the Craig Wood Fired Boiler Project is to use waste wood from local sawmilling operations to provide heat to local public buildings, in an effort to reduce the cost of operating those buildings, and put to productive use a byproduct from the wood milling process that otherwise presents an expense to local mills. The scope of the project included the acquisition of a wood boiler and the delivery systems to feed wood fuel to it, the construction of a building to house the boiler and delivery systems, and connection of the boiler facility to three buildings that will benefit from heat generated by the boiler: the Craig Aquatic Center, the Craig Elementary School, and the Craig Middle School buildings.

  2. Title: Wood decomposition rates and functional types in a shifting climate. Principal Investigator: Jonathan Schilling, University of Minnesota, USA

    E-Print Network [OSTI]

    Title: Wood decomposition rates and functional types in a shifting climate. Principal Investigator, focused on decomposition of black spruce wood, would complement the SPRUCE decomposition trial (Kolka PI and an approach that can be mirrored in a small-diameter wood decay study and can allow us to leverage sampling

  3. Author's personal copy Evaluation of methods for sorting CCA-treated wood

    E-Print Network [OSTI]

    Florida, University of

    Author's personal copy Evaluation of methods for sorting CCA-treated wood Gary Jacobi a , Helena September 2006 Available online 2 January 2007 Abstract Construction and demolition (C&D) wood frequently contains treated wood including wood treated with chromated copper arsenate (CCA). Many recycling options

  4. 20 Engineered Wood Journal Spring 2004 re wood design course

    E-Print Network [OSTI]

    Gupta, Rakesh

    20 Engineered Wood Journal · Spring 2004 A re wood design course offerings in civil, architectural, just maintaining the status quo could spell trouble for a wood products industry facing ever-greater competition from non-wood building materials. University education about wood as an engineering material

  5. Wood Resources International

    E-Print Network [OSTI]

    ;Wood Resources International Production of energy from wood fuels in 2000 Source: EUBIONET 0 50 100 150.3% Sweden 5.3% Finland 4.1% Russia 13.8% US 37.3% Germany 3.3% France 2.8% Poland 2.1% Other Europe 14 #12;Wood Resources International Global Industrial Roundwood Production in 2002 Other Europe 6.9% CIS

  6. Method for lowering the VOCS emitted during drying of wood products

    DOE Patents [OSTI]

    Banerjee, Sujit (1832 Jacksons Creek Point, Marietta, GA 30068); Boerner, James Robert (154 Junedale Rd., Cincinnati, OH 45218); Su, Wei (2262 Orleans Ave., Marietta, GA 30062)

    2000-01-01

    The present invention is directed to a method for removal of VOCs from wood products prior to drying the wood products. The method of the invention includes the steps of providing a chamber having an opening for receiving wood and loading the chamber with green wood. The wood is loaded to an extent sufficient to provide a limited headspace in the chamber. The chamber is then closed and the wood is heated in the chamber for a time and at a temperature sufficient to saturate the headspace with moisture and to substantially transfer VOCs from the wood product to the moisture in the headspace.

  7. HYDROLYZED WOOD SLURRY FLOW MODELING

    E-Print Network [OSTI]

    Wrathall, Jim

    2012-01-01

    LBL-10090 UC-61 HYDROLYZED WOOD SLURRY FLOW MODELING JimLBL-10090 HYDROLYZED WOOD SLURRY FLOW MODELING Jim Wrathallconversion of hydrolyzed wood slurry to fuel oil, Based on

  8. Wood energy system design

    SciTech Connect (OSTI)

    Not Available

    1988-01-01

    This handbook, Wood Energy System Design, was prepared with the support of the Council of Great Lakes Governors and the US Department of Energy. It contains: wood fuel properties; procurement; receiving, handling, and storage; combustion; gasification; emission control; electric power generation and cogeneration; and case studies. (JF)

  9. Wood pelletization sourcebook

    SciTech Connect (OSTI)

    Haase, S.; Whittier, J. [NEOS Corporation, Lakewood, CO (United States); Fisher, J. [Pellet Fuels Institute, Edina, MN (United States)] [and others

    1994-12-31

    The Wood Pelletization Sourcebook is a document that provides business guidelines and technical information to those considering entering the wood pelleting business. Also, the sourcebook is a useful supplementary document for lenders to refer to in their analysis of a potential manufacturer`s business plan. A survey of wood pellet manufacturers was conducted during the spring and summer of 1994 to gather information on marketing, pelletization technology, environmental regulations, raw material supply and costs, production costs, and the overall outlook of the industry. The study characterizes different sized pelleting operations, creates a sample business plan for potential manufacturers, and identifies key industry success factors.

  10. Creating Value Wood Products Industry

    E-Print Network [OSTI]

    1 Creating Value for the Wood Products Industry Creating Value for the Wood Products Industry for the Wood Products Industry The forest industry contributes more than 50 percent of the total value of all assistance to the primary and value-added processing wood products industries in Louisiana. Since its

  11. WOOD ANATOMY INSTRUCTIONS FOR LABORATORY

    E-Print Network [OSTI]

    Cufar, Katarina

    WOOD ANATOMY INSTRUCTIONS FOR LABORATORY WORK KATARINA CUFAR, MARTIN ZUPANCIC University of Ljubljana Biotechnical Faculty Department of Wood Science and Technology #12;Publisher Department of Wood The publishing of "Wood Anatomy - Instructions for Laboratory Work", a textbook by Katarina Cufar and Martin

  12. William B. Wood Complete Publications

    E-Print Network [OSTI]

    Pace, Norman

    3/24/14 William B. Wood Complete Publications Scientific Research: 1. Wood, W. B., and Berg, P protein-ribosome system from Escherichia coli. Proc. Natl. Acad. Sci. USA 48: 94-104. 2. Wood, W. B Harbor Symp. Quant. Biol. 23: 237-246. 3. Wood, W. B., and Berg, P. (1964) Influence of DNA secondary

  13. James F. Wood

    Broader source: Energy.gov [DOE]

    James F. Wood is currently Deputy Assistant Secretary for Clean Coal in the Office of Fossil Energy (FE). In this position, he is responsible for the management and direction of the Office's...

  14. Woods for Health Strategy Woods for Health Strategy | 32 | Woods for Health Strategy

    E-Print Network [OSTI]

    Strategy Woods for Health #12;Woods for Health Strategy Woods for Health Strategy | 32 | Woods for Health Strategy Foreword Like the rest of the western world, Scotland experiences growing rates a key role in helping to promote better physical and mental health for all by providing greenspace

  15. An Overview of the Louisiana Primary Solid Wood Products Industry

    E-Print Network [OSTI]

    Wu, Qinglin

    An Overview of the Louisiana Primary Solid Wood Products Industry Working Paper #2 Louisiana Forest Paper #1 that examined the Louisiana secondary wood products industry (Vlosky et al. 1994). The broad (including pulp and paper) and secondary manufacturing establishments (Jacob et al. 1987). The forest

  16. The Pitfalls of Realist Analysis of Global Capitalism: A Critique of Ellen Meiksins Wood’s Empire of Capitalism: A Critique of Ellen Meiksins Wood's "Empire of Capital"

    E-Print Network [OSTI]

    Robinson, William I.

    2007-01-01

    Boulder: Paradigm Press. Wood, Ellen Meiksins 2002, ‘Globalgroups. 13 Indeed, Wood 2003, p. 23. Wood 2003, p. 132.Ibid. Wood 2003, p. 129. Wood 2003, p. 133. Wood 2003, p.

  17. Precision wood particle feedstocks

    DOE Patents [OSTI]

    Dooley, James H; Lanning, David N

    2013-07-30

    Wood particles having fibers aligned in a grain, wherein: the wood particles are characterized by a length dimension (L) aligned substantially parallel to the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L; the L.times.H dimensions define two side surfaces characterized by substantially intact longitudinally arrayed fibers; the W.times.H dimensions define two cross-grain end surfaces characterized individually as aligned either normal to the grain or oblique to the grain; the L.times.W dimensions define two substantially parallel top and bottom surfaces; and, a majority of the W.times.H surfaces in the mixture of wood particles have end checking.

  18. Avalanches in wood compression

    E-Print Network [OSTI]

    Tero Mäkinen; Amandine Miksic; Markus Ovaska; Mikko J. Alava

    2015-06-15

    Wood is a multi-scale material exhibiting a complex viscoplastic response. We study avalanches in small wood samples in compression. "Woodquakes" measured by acoustic emission are surprisingly similar to earthquakes and crackling noise in rocks and laboratory tests on brittle materials. Both the distributions of event energies and of waiting (silent) times follow power-laws. The stress- strain response exhibits clear signatures of localization of deformation to "weak spots" or softwood layers, as identified using Digital Image Correlation. Even though material structure-dependent localization takes place, the avalanche behavior remains scale-free.

  19. Global Markets for Verified Legal Wood Products

    E-Print Network [OSTI]

    wood products (FSC, PEFC) Retailers interested in corporate social responsibility (CSR) and protecting reputation, starting in 1990s. FSC and PEFC certification standards developed, which include independent 3rd, PEFC) Major international companies, such as WalMart or IKEA, now require suppliers to be able

  20. Inaugural 2012 Kristie Ann Wood

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Inaugural 2012 Kristie Ann Wood Scholarship Award Call for Nominations We are delighted to announce the Inaugural 2012 Kristie Ann Wood Scholarship Award for an Outstanding Women's, Gender, and Sexualities (WGSS Wood, a feminist mother, wife, friend, daughter, and lawyer who is remembered by her loved ones

  1. Management of ancient wood pasture

    E-Print Network [OSTI]

    Guidance Management of ancient wood pasture Summary Ancient wood pasture is recognised. This guidance note provides an introduction to the restoration and management of ancient wood pastures in Scotland. It is aimed at land managers, their advisers and agency staff involved in land management

  2. Rheological Model for Wood

    E-Print Network [OSTI]

    Mohammad Masoud Hassani; Falk K. Wittel; Stefan Hering; Hans J. Herrmann

    2014-10-15

    Wood as the most important natural and renewable building material plays an important role in the construction sector. Nevertheless, its hygroscopic character basically affects all related mechanical properties leading to degradation of material stiffness and strength over the service life. Accordingly, to attain reliable design of the timber structures, the influence of moisture evolution and the role of time- and moisture-dependent behaviors have to be taken into account. For this purpose, in the current study a 3D orthotropic elasto-plastic, visco-elastic, mechano-sorptive constitutive model for wood, with all material constants being defined as a function of moisture content, is presented. The corresponding numerical integration approach, with additive decomposition of the total strain is developed and implemented within the framework of the finite element method (FEM). Moreover to preserve a quadratic rate of asymptotic convergence the consistent tangent operator for the whole model is derived. Functionality and capability of the presented material model are evaluated by performing several numerical verification simulations of wood components under different combinations of mechanical loading and moisture variation. Additionally, the flexibility and universality of the introduced model to predict the mechanical behavior of different species are demonstrated by the analysis of a hybrid wood element. Furthermore, the proposed numerical approach is validated by comparisons of computational evaluations with experimental results.

  3. Prices include compostable serviceware and linen tablecloths

    E-Print Network [OSTI]

    California at Davis, University of

    APPETIZERS Prices include compostable serviceware and linen tablecloths for the food tables.ucdavis.edu. BUTTERNUT SQUASH & BLACK BEAN ENCHILADAS #12;BUFFETS Prices include compostable serviceware and linen

  4. Inside the guts of wood-eating catfishes: can they digest wood?

    E-Print Network [OSTI]

    German, Donovan P.

    2009-01-01

    the cellulolytic system of the wood-boring marine mollusk2008), how diVerent are the wood-eating catWshes from otherendosymbionts and digest wood, or are these wood- eating

  5. Method for improving separation of carbohydrates from wood pulping and wood or biomass hydrolysis liquors

    DOE Patents [OSTI]

    Griffith, William Louis; Compere, Alicia Lucille; Leitten, Jr., Carl Frederick

    2010-04-20

    A method for separating carbohydrates from pulping liquors includes the steps of providing a wood pulping or wood or biomass hydrolysis pulping liquor having lignin therein, and mixing the liquor with an acid or a gas which forms an acid upon contact with water to initiate precipitation of carbohydrate to begin formation of a precipitate. During precipitation, at least one long chain carboxylated carbohydrate and at least one cationic polymer, such as a polyamine or polyimine are added, wherein the precipitate aggregates into larger precipitate structures. Carbohydrate gel precipitates are then selectively removed from the larger precipitate structures. The method process yields both a carbohydrate precipitate and a high purity lignin.

  6. SOME POV-RAY TEXTURES AND COLORS T_Wood1 to T_Wood35

    E-Print Network [OSTI]

    Lee, Carl

    SOME POV-RAY TEXTURES AND COLORS WOODS.INC T_Wood1 to T_Wood35 STONES.INC T_Stone1 to T_Stone44Pink DarkPurple NeonBlue CoolCopper MandarinOrange LightWood MediumWood DarkWood SpicyPink Semi

  7. Causes and Control of Wood Decay,

    E-Print Network [OSTI]

    1 Causes and Control of Wood Decay, Degradation & Stain #12;2 Contents Moisture .................................................................................3 Wood Degradation: Causes and Control..............................4 Weathering......................................................................................................4 Naturally Decay-resistant Species...........................................................5 Wood

  8. Fast Curing of Composite Wood Products

    SciTech Connect (OSTI)

    Dr. Arthur J. Ragauskas

    2006-04-26

    The overall objective of this program is to develop low temperature curing technologies for UF and PF resins. This will be accomplished by: • Identifying the rate limiting UF and PF curing reactions for current market resins; • Developing new catalysts to accelerate curing reactions at reduced press temperatures and times. In summary, these new curing technologies will improve the strength properties of the composite wood products and minimize the detrimental effects of wood extractives on the final product while significantly reducing energy costs for wood composites. This study is related to the accelerated curing of resins for wood composites such as medium density fiberboard (MDF), particle board (PB) and oriented strandboard (OSB). The latter is frequently manufactured with a phenol-formaldehyde resin whereas ureaformaldehyde (UF) resins are usually used in for the former two grades of composite wood products. One of the reasons that hinder wider use of these resins in the manufacturing of wood composites is the slow curing speed as well as inferior bondability of UF resin. The fast curing of UP and PF resins has been identified as an attractive process development that would allow wood to be bonded at higher moisture contents and at lower press temperatures that currently employed. Several differing additives have been developed to enhance cure rates of PF resins including the use of organic esters, lactones and organic carbonates. A model compound study by Conner, Lorenz and Hirth (2002) employed 2- and 4-hydroxymethylphenol with organic esters to examine the chemical basis for the reported enhanced reactivity. Their studies suggested that the enhance curing in the presence of esters could be due to enhanced quinone methide formation or enhanced intermolecular SN2 reactions. In either case the esters do not function as true catalysts as they are consumed in the reaction and were not found to be incorporated in the polymerized resin product. An alternative approach to accelerated PF curing can be accomplished with the addition amines or amides. The later functionality undergoes base catalyzed hydrolysis yielding the corresponding carboxyl ate and free amine which rapidly reacts with the phenolic methylol groups facilitating polymerization and curing of the PF resin (Pizzi, 1997).

  9. Robert Wood, University of Washington many contributors

    E-Print Network [OSTI]

    Wood, Robert

    Robert Wood, University of Washington many contributors VOCALS Education and Outreach Snider (Wyoming) · Dave Spencer (NCSU) · Cindy Twohy (OSU) · Rob Wood/Chris Bretherton/Rhea George

  10. The Asian Wood Pellet Markets

    E-Print Network [OSTI]

    The Asian Wood Pellet Markets Joseph A. Roos and Allen M. Brackley United States Department Wood Pellet plant in North Pole, Alaska. Clockwise from upper left: pelleting machine; pellets bagged for home use; a Superior Pellet Fuels bag; inventory of product ready for shipment to retailers. Upper

  11. Environmental Impacts of Treated Wood

    E-Print Network [OSTI]

    Florida, University of

    Environmental Impacts of Treated Wood 6495_C000.fm Page iii Wednesday, February 1, 2006 5:48 PM #12 through the Florida Center for Environmental Solutions, National Science Foundation Grant No. 0126172. Any of treated-wood research and their efforts in organizing the con- ference entitled Environmental Impacts

  12. Particulate emissions from residential wood combustion: Final report: Norteast regional Biomass Program

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    The objective of this study was to provide a resource document for the Northeastern states when pursuing the analysis of localized problems resulting from residential wood combustion. Specific tasks performed include assigning emission rates for total suspended particulates (TSP) and benzo(a)pyrene (BaP) from wood burning stoves, estimating the impact on ambient air quality from residential wood combustion and elucidating the policy options available to Northeastern states in their effort to limit any detrimental effects resulting from residential wood combustion. Ancillary tasks included providing a comprehensive review on the relevant health effects, indoor air pollution and toxic air pollutant studies. 77 refs., 11 figs., 25 tabs.

  13. Proactive climate protection Building with wood =

    E-Print Network [OSTI]

    = CO2 Proactive climate protection Building with wood = CO 2 #12;Introduction Forests play to produce wood products is vastly lower than other materials. Proactive climate protectionBuilding with wood = Proactive climate protectionBuilding with wood = CO 2 products, carbon storage p. 3 Forests = Natural

  14. Wood River Levee Reconstruction, Madison County, IL

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Wood River Levee Reconstruction, Madison County, IL 25 October 2006 Abstract: The recommended plan provides for flood damage reduction and restores the original degree of protection of the Wood River Levee-federal sponsor is the Wood River Drainage and Levee District. The Wood River Levee System was authorized

  15. MARCY B. WOOD Curriculum Vitae, October 2012

    E-Print Network [OSTI]

    Lega, Joceline

    MARCY B. WOOD Curriculum Vitae, October 2012 University of Arizona, College of Education Department 2005 #12;Marcy B. Wood October 2012 Page 2 PUBLICATIONS REFEREED JOURNAL ARTICLES Wood, M. B., Olson, A-Oriented Perspective from Elementary Children. School Science and Mathematics. Good, T. L., Wood, M. B., Sabers, D

  16. FAO Forestry Department Wood Energy WISDOM Slovenia

    E-Print Network [OSTI]

    in developing pellet production and district heating systems; the formulation of a national wood energy strategy

  17. The Woods Hole Laboratory, 1885-1985

    E-Print Network [OSTI]

    The Woods Hole Laboratory, 1885-1985: A Century of Service Woods Hole Laboratory Northeast, Lectures, and Rededication of the Woods Hole Laboratory Contents Foreword and Acknowledgments Committees and Contributions of the Woods Hole Fisheries Laboratory Centennial Lecture II: The MBL and the Fisheries-A Century

  18. Successful biomass (wood pellets ) implementation in

    E-Print Network [OSTI]

    Successful biomass (wood pellets ) implementation in Estonia Biomass Utilisation of Local of primary energy in Estonia ! Wood fuels production ! Pellet firing projects in Estonia ­ SIDA Demo East Production of wood fuels in Estonia in 2002 Regional Energy Centres in Estonia Wood pellets production

  19. Global Timber and Wood Products Market Update -a news brief from Wood Resources International LLC

    E-Print Network [OSTI]

    Global Timber and Wood Products Market Update - a news brief from Wood Resources International LLC to be the major destination for Latin American wood chips, reports the Wood Resource Quarterly In late 2011 wood chips from only three countries: Vietnam, Indonesia and Australia, who together shipped 1

  20. BLACK HISTORY MONTH

    Broader source: Energy.gov [DOE]

    Black History Month is an annual celebration of achievements by black Americans and a time for recognizing the central role of African Americans in U.S. history. The event grew out of “Negro History Week,” created by historian Carter G. Woodson and other prominent African Americans. Other countries around the world, including Canada and the United Kingdom, also devote a month to celebrating black history.

  1. The conservation of waterlogged wood using sucrose 

    E-Print Network [OSTI]

    Parrent, James Michael

    1983-01-01

    wood. This thesis investigates the use of sucrose and how it reacts with wood's ultrastucture to prevent shrinkage and warpage of waterlogged wood. Experiments using archaeological wood from the sunken city of seventeenth century Port Royal... expensive, non-toxic, non-flammable, non-hygroscopic and is readily available in most countries. Utilization of sugar to stabilize wood is not a new concept. A United States patent, No. 755, 240, was issued 32 to William Powell of Liverpool, England...

  2. Integrated Industrial Wood Chip Utilization 

    E-Print Network [OSTI]

    Owens, E. T.

    1984-01-01

    The sources of supply of wood residues for energy generation are described and the rationale for exploring the potential available from forest harvesting is developed. Details of three industrial-scale projects are presented and the specific...

  3. Textile Drying Via Wood Gasification 

    E-Print Network [OSTI]

    McGowan, T. F.; Jape, A. D.

    1983-01-01

    This project was carried out to investigate the possibility of using wood gas as a direct replacement for natural gas in textile drying. The Georgia Tech updraft gasifier was used for the experimental program. During preliminary tests, the 1 million...

  4. Impacts of CCA-treated wood and wood ash on arsenic concentrations in soils and plants

    E-Print Network [OSTI]

    Ma, Lena

    Impacts of CCA-treated wood and wood ash on arsenic concentrations in soils and plants Lena Q. Ma.e. CCA-treated wood and wood ash. In Florida, up to 5,000,000 ft3 CCA-treated wood were used in 1996 alone and up to 50,000 tons of wood ash are produced annually. Therefore, it is critical to evaluate

  5. You Cannot Press Out the Black Hole

    E-Print Network [OSTI]

    Daisuke Ida; Takahiro Okamoto

    2012-01-03

    It is shown that a ball-shaped black hole region homeomorphic with D**n cannot be pressed out, along whichever axis penetrating the black hole region, into a black ring with a doughnut-shaped black hole region homeomorphic with S**1 x D**(n-1). A more general prohibition law for the change of the topology of black holes, including a version of no-bifurcation theorems for black holes, is given.

  6. Techno-economic analysis of wood biomass boilers for the greenhouse industry

    SciTech Connect (OSTI)

    Chau, J.; Sowlati, T.; Sokhansanj, Shahabaddine; Bi, X.T.; Preto, F.; Melin, Staffan

    2009-01-01

    The objective of this study is to perform a techno-economic analysis on a typical wood pellet and wood residue boiler for generation of heat to an average-sized greenhouse in British Columbia. The variables analyzed included greenhouse size and structure, boiler efficiency, fuel types, and source of carbon dioxide (CO2) for crop fertilization. The net present value (NPV) show that installing a wood pellet or a wood residue boiler to provide 40% of the annual heat demand is more economical than using a natural gas boiler to provide all the heat at a discount rate of 10%. For an assumed lifespan of 25 years, a wood pellet boiler system could generate NPV of C$259,311 without electrostatic precipitator (ESP) and C$74,695 with ESP, respectively. While, installing a wood residue boiler with or without an ESP could provide NPV of C$919,922 or C$1,104,538, respectively. Using a wood biomass boiler could also eliminate over 3000 tonne CO2 equivalents of greenhouse gases annually. Wood biomass combustion generates more particulate matters than natural gas combustion. However, an advanced emission control system could significantly reduce particulate matters emission from wood biomass combustion which would bring the particulate emission to a relatively similar level as for natural gas.

  7. CHEMISTRY AND STOICHIOMETRY OF WOOD LIQUEFACTION

    E-Print Network [OSTI]

    Davis, H.G.

    2012-01-01

    analysis of the wood-oil product derived from the above2 g It is probable that oil products with oxygen contentscollected with the wood-oil product. The condensate contains

  8. Structure-Infesting Wood-Boring Beetles 

    E-Print Network [OSTI]

    Jackman, John A.

    2006-03-28

    Several kinds of beetles damage stored wood, structural timbers and other wood products. This publication explains how to detect, identify, prevent and control powderpost beetle, old house borer and others....

  9. 1Wood Borer --WB-XX-W America's Least Wanted Wood-Borers

    E-Print Network [OSTI]

    Pittendrigh, Barry

    1Wood Borer -- WB-XX-W WB-07-W America's Least Wanted Wood-Borers Department of Entomology JAPANESE. Pupation takes place in the wood and adults emerge by chewing a round exit hole. Adults feed on the tender) #12;2Wood Borer -- WB-07-W October 2012 It is the policy of the Purdue University Cooperative

  10. Closed Loop Recycling of PreservativeClosed Loop Recycling of Preservative Treated WoodTreated Wood

    E-Print Network [OSTI]

    Closed Loop Recycling of PreservativeClosed Loop Recycling of Preservative Treated WoodTreated Wood estimated that about 5 million tons of spent preservative treated wood istons of spent preservative treated wood is disposed of annually into landfills in thedisposed of annually into landfills in the United

  11. 1Wood Borer --WB-XX-W America's Least Wanted Wood-Borers

    E-Print Network [OSTI]

    Pittendrigh, Barry

    1Wood Borer -- WB-XX-W WB-08-W America's Least Wanted Wood-Borers Department of Entomology OAK, these beetles feed on oak (Quercus spp). Direct damage results from galleries in the wood that are formed in the breeding season. The host trees for these beetles are important for the wood indus- try, orna

  12. 1Wood Borer --WB-XX-W America's Least Wanted Wood-Borers

    E-Print Network [OSTI]

    Pittendrigh, Barry

    1Wood Borer -- WB-XX-W WB-09-W America's Least Wanted Wood-Borers Department of Entomology EUROPEAN trees are very crucial for the wood industry, ornamental industry and many species of wildlife: The beetles construct the egg gal- leries perpendicular to the grain of the wood which can be found under

  13. 1Wood Borer --WB-XX-W America's Least Wanted Wood-Borers

    E-Print Network [OSTI]

    Pittendrigh, Barry

    1Wood Borer -- WB-XX-W WB-06-W America's Least Wanted Wood-Borers Department of Entomology CAMPHOR August. Female beetles make a horizontal tunnel in the wood initiating gallery construction where/APHIS grant number 10-8100-1488-CA. #12;2Wood Borer -- WB-06-W October 2012 It is the policy of the Purdue

  14. WoodPolymer Composites Prepared by the In Situ Polymerization of Monomers Within Wood

    E-Print Network [OSTI]

    Wood­Polymer Composites Prepared by the In Situ Polymerization of Monomers Within Wood Yong-Feng Li in Wiley Online Library (wileyonlinelibrary.com). ABSTRACT: Wood­polymer composites (WPCs) were prepared from poplar wood (P. ussuriensis Komarov) in a two-step procedure. Maleic anhydride (MAN) was first dis

  15. Wood Fuel Future: The Potential Web Text December 2010

    E-Print Network [OSTI]

    burn wood chips or pellets, which are fed into the boilers automatically by an electronically regulatedWood Fuel Future: The Potential Web Text 31st December 2010 Wood Fuel Future: The Potential Wood') supports the development of renewable energy from wood fuel. Of all the clean energy technologies, wood

  16. FIEA Advancing Wood Technology Forest Industry Engineering Scholarship

    E-Print Network [OSTI]

    Hickman, Mark

    FIEA ­ Advancing Wood Technology Forest Industry Engineering Scholarship Forest Industry, including any NZQA Unit Standards that you have completed. NOTES: 1. The Regulations for this award be received by the Dunedin office of Forest Industry Engineering Association by 1 March 2012

  17. GUYANA FORESTRY COMMISSION NATIONAL WOOD TRACKING SYSTEM

    E-Print Network [OSTI]

    Timber Sales Agreement VPA Voluntary Partnership Agreement WCL Wood Cutting Lease WTS Wood Tracking chain is managed and controlled the Guyana Forestry Commission has developed a Wood Tracking System (WTS in the process as well as flow charts illustrating essential elements of the system. The WTS links closely

  18. Donald L. Wood Professional Conference Travel Grants

    E-Print Network [OSTI]

    Cantlon, Jessica F.

    Donald L. Wood Professional Conference Travel Grants for Engineering Undergraduates APPLICATION by a generous donation from the estate of Donald L. Wood. The student application and final report will be used to describe our accomplishments to the family of this sponsor. #12;Donald L. Wood Professional Conference

  19. How wood waters down wall insulation

    SciTech Connect (OSTI)

    Lunde, P.J.

    1984-02-01

    Wood framing in walls can lower the actual insulating values, since the R-value of wood is only one per inch of thickness. A chart is presented that shows how wood in the stud space reduces insulating values. Several wall systems and the nominal R-value of insulation for each is presented.

  20. Autonomous Underwater Gliders Wood, Stephen

    E-Print Network [OSTI]

    Wood, Stephen L.

    of power such as ocean wave energy, and 4) hybrid vehicles that use standard propulsion systems and glider26 Autonomous Underwater Gliders Wood, Stephen Florida Institute of Technology United States. This is still true but scientists at various institutions such as Florida Institute of Technology's Department

  1. Hygrothermal Performance of West Coast Wood Deck Roofing System

    SciTech Connect (OSTI)

    Pallin, Simon B [ORNL; Kehrer, Manfred [ORNL; Desjarlais, Andre Omer [ORNL

    2014-02-01

    Simulations of roofing assemblies are necessary in order to understand and adequately predict actual the hygrothermal performance. At the request of GAF, simulations have been setup to verify the difference in performance between white and black roofing membrane colors in relation to critical moisture accumulation for traditional low slope wood deck roofing systems typically deployed in various western U.S. Climate Zones. The performance of these roof assemblies has been simulated in the hygrothermal calculation tool of WUFI, from which the result was evaluated based on a defined criterion for moisture safety. The criterion was defined as the maximum accepted water content for wood materials and the highest acceptable moisture accumulation rate in relation to the risk of rot. Based on the criterion, the roof assemblies were certified as being either safe, risky or assumed to fail. The roof assemblies were simulated in different western climates, with varying insulation thicknesses, two different types of wooden decking, applied with varying interior moisture load and with either a high or low solar absorptivity at the roof surface (black or white surface color). The results show that the performance of the studied roof assemblies differs with regard to all of the varying parameters, especially the climate and the indoor moisture load.

  2. Overview of Green Building Rating Systems and their Relationship(s) with Wood

    E-Print Network [OSTI]

    . Eleven rating systems were analyzed, including: BREEAM, Built Green TM , CASBEE® , Green GlobesTM , Green. The prevalence of wood in each of the rating systems varied from below 10% (SB Tool, LEED® NC US, and BREEAM Code

  3. Sustainable Wood & Lumber

    E-Print Network [OSTI]

    expended from obtaining raw materials to the manufacturing, usage, transportation, recycling that compares the environmental impact of both materials, including the total amount of water and fossil fuel prices competitive. It is also easier to work with and manipulate compared to other materials because it

  4. Vertical feed stick wood fuel burning furnace system

    DOE Patents [OSTI]

    Hill, Richard C. (Orono, ME)

    1982-01-01

    A stove or furnace for efficient combustion of wood fuel includes a vertical feed combustion chamber (15) for receiving and supporting wood fuel in a vertical attitude or stack. A major upper portion of the combustion chamber column comprises a water jacket (14) for coupling to a source of water or heat transfer fluid for convection circulation of the fluid. The locus (31) of wood fuel combustion is thereby confined to the refractory base of the combustion chamber. A flue gas propagation delay channel (34) extending laterally from the base of the chamber affords delayed travel time in a high temperature refractory environment sufficient to assure substantially complete combustion of the gaseous products of wood burning with forced air prior to extraction of heat in heat exchanger (16). Induced draft draws the fuel gas and air mixture laterally through the combustion chamber and refractory high temperature zone to the heat exchanger and flue. Also included are active sources of forced air and induced draft, multiple circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

  5. Vertical feed stick wood fuel burning furnace system

    DOE Patents [OSTI]

    Hill, Richard C. (Orono, ME)

    1984-01-01

    A new and improved stove or furnace for efficient combustion of wood fuel including a vertical feed combustion chamber for receiving and supporting wood fuel in a vertical attitude or stack, a major upper portion of the combustion chamber column comprising a water jacket for coupling to a source of water or heat transfer fluid and for convection circulation of the fluid for confining the locus of wood fuel combustion to the bottom of the vertical gravity feed combustion chamber. A flue gas propagation delay channel extending from the laterally directed draft outlet affords delayed travel time in a high temperature environment to assure substantially complete combustion of the gaseous products of wood burning with forced air as an actively induced draft draws the fuel gas and air mixture laterally through the combustion and high temperature zone. Active sources of forced air and induced draft are included, multiple use and circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

  6. PERFORMANCE OF BLACK LIQUOR GASIFIER/GAS TURBINE COMBINED CYCLE COGENERATION IN mE KRAFT PULP

    E-Print Network [OSTI]

    ,and otherregions with low wood production costs and relatively low per-capita levels of paper use. The majority,and capital cost benefits for kraft mills. Several companie.~arepursuingcon-urercializationof black liquor

  7. This habitat category includes those habitats that are primarily anthropogenic in nature, broadly divided into "shrublands" and

    E-Print Network [OSTI]

    New Hampshire, University of

    old fields, coastal thickets (e.g., in dunes), regenerating forests, and maintained shrublands divided into "shrublands" and "grasslands." Shrublands are dominated by low wood vegetation, and include

  8. European Panel FederationEuropean Panel Federation viewpoint on wood energy policiesviewpoint on wood energy policies

    E-Print Network [OSTI]

    European Panel FederationEuropean Panel Federation viewpoint on wood energy policiesviewpoint on wood energy policies Eva JanssensEva Janssens (Economic Adviser)(Economic Adviser) #12;European PanelSupporting sustainable forest managementsustainable forest management ·· Continuously improving recycling rates

  9. Oceanography Seminar Elisha Wood-Charlson

    E-Print Network [OSTI]

    Oceanography Seminar Elisha Wood-Charlson Communications Project Manager Center for Microbial Oceanography: Research and Education University of Hawaii at Mnoa "Understanding the Role of Viruses

  10. One on One- Douglas K Woods

    Broader source: Energy.gov [DOE]

    A September 2014 interview with Douglas K Woods, the President of the Association for Manufacturing Technology, on the state of US manufacturing.

  11. Code Thrust 1400 Aeronautical/Astronautical Engineering (including Aerodynamics, Aerospace Engineering, and Space Technology)

    E-Print Network [OSTI]

    Alabama in Huntsville, University of

    , Polymer, and Wood Science) 1403 Civil Engineering (including Architectural, Architecture, Environmental, Physical Chemistry, Polymer Science, excluding Biochemistry) 1503 Physics (including Acoustics, Atomic Processing, Informational Sciences, Information Technology, Management Information Systems) 1901 Biological

  12. Using Crack Propagation Fracture Toughness to Characterize the Durability of Wood and Wood Composites

    E-Print Network [OSTI]

    Nairn, John A.

    Using Crack Propagation Fracture Toughness to Characterize the Durability of Wood and Wood, Corvallis, OR 97330, USA Abstract We measured fracture resistance curves (or R curves) for laminated veneer. The LVL and solid wood R curves were the same for initiation of fracture, but the LVL toughness rose much

  13. MODE II FRACTURE BEHAVIOR OF BONDED VISCOELASTIC THERMAL COMPRESSED WOOD

    E-Print Network [OSTI]

    Nairn, John A.

    MODE II FRACTURE BEHAVIOR OF BONDED VISCOELASTIC THERMAL COMPRESSED WOOD Andreja Kutnar* Graduate Student Department of Wood Science and Technology Biotechnical Faculty University of Ljubljana 1000 Ljubljana, Slovenia Frederick A. Kamke Professor John A. Nairn Professor Department of Wood Science

  14. Pellet Production Wood Pellets are made by compressing

    E-Print Network [OSTI]

    Pellet Production Wood Pellets are made by compressing clean dry sawdust, under very high pressure for more information on briquettes). Because they are made from very dry wood, pellets have a very high/TS 14961. Pellets are usually wood

  15. Disposal of CCA-treated Wood: An Evaluation of

    E-Print Network [OSTI]

    Florida, University of

    CHARACTERISTICS OF CCA-TREATED WOOD ASH II.1 Sample Preparation 10 II.2 Laboratory Methods 15 II.3 Laboratory of Total Metals Concentrations in Treated Wood and 84 Treated Wood Ash IV.2 Regulatory Implications of TCLP

  16. Housing 2020: The future of wood in U.S. dwellings

    SciTech Connect (OSTI)

    Wendt, R.L. [Oak Ridge National Lab., TN (United States). Energy Div.

    1994-12-31

    This paper presented at the International Panel and Engineered-Wood Technology Exposition examines the effect that reduced material resources, energy conservation, manufactured dwellings, and construction techniques have had on the use of wood in the housing industry. The topics of the paper include the impact of the energy crisis, financing and affordability crisis, lumber crisis, and a forecast of what the house of the year 2020 will look like, how it will be constructed and of what material will it be constructed.

  17. Kinetic Modeling and Assessment of Lime Pretreatment of Poplar Wood 

    E-Print Network [OSTI]

    Sierra Ramirez, Rocio

    2012-02-14

    , industrial, and agricultural). 5. Appropriate selection of feedstock and conversion technology. 6. Improved efficiency of the production technology obtained through intensive research and development. 7. More efficient use of energy, including vehicle...-1 KINETIC MODELING AND ASSESSMENT OF LIME PRETREATMENT OF POPLAR WOOD A Dissertation by ROCIO SIERRA RAMIREZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...

  18. Shear deflection of composite wood beams 

    E-Print Network [OSTI]

    Skaggs, Thomas David

    1992-01-01

    properties (E and G) along the length of the beam. Biblis (1965) examined the deflection of small scale solid wood beams of varying span-to- depth (L/d) ratios. Several wood species were studied for the 0. 65" x 0. 65" test specimens. An equation was used...

  19. CEICEI--BoisBois European Confederation of Woodworking IndustriesEuropean Confederation of Woodworking Industries ValueValue--added wood productsadded wood products

    E-Print Network [OSTI]

    of Woodworking Industries ValueValue--added wood productsadded wood products markets: flooringmarkets: flooring of Woodworking Industries Wood flooring and woodWood flooring and wood--based flooringbased flooring · "Genuine" wood ­ Solid products (parquet, planks, ...) ­ Products with a "genuine" top layer · Multilayer parquet

  20. Mutiny on the Bounty or Bountiful Mutants? Diversity and Composition of Wood-Decaying Macrofungi on Hibiscus Tiliaceus Wood in French Polynesia

    E-Print Network [OSTI]

    Wheaton, Felicia

    2006-01-01

    B. G. Jonsson. 1995. Wood-inhabiting fungi and substratumand S. C. Watkinson. 1995. Wood decomposition, higher fungi,combative interaction between wood-decaying basidiomycetes.

  1. Black hole microstates in AdS

    E-Print Network [OSTI]

    Shaghoulian, Edgar

    2015-01-01

    We extend a recently derived higher-dimensional Cardy formula to include angular momenta, which we use to obtain the Bekensten-Hawking entropy of AdS black branes, compactified rotating branes, and large Schwarzschild/Kerr black holes. This is the natural generalization of Strominger's microscopic derivation of the BTZ black hole entropy to higher dimensions. We propose an extension to include $U(1)$ charge, which agrees with the Bekenstein-Hawking entropy of large Reissner-Nordstrom/Kerr-Newman black holes at high temperature. We extend the results to arbitrary hyperscaling violation exponent (this captures the case of black D$p$-branes as a subclass) and reproduce logarithmic corrections.

  2. Wood fuel in fluidized bed boilers

    SciTech Connect (OSTI)

    Virr, M.J.

    1982-01-01

    Development of fluidized bed fire-tube and water-tube boilers for the burning of wood, gas, and refuse-derived fuel will be reviewed. Experience gained in already installed plants will be outlined. Research experiments results on the use of various forms of wood and other biomass fuels, such as wood chips, pellets, peach pits, nut shells and kernels and refuse-derived fuels, will be described for small and medium sized fire-tube boilers, and for larger water-tube boilers for co-generation. (Refs. 4).

  3. Emerging Markets for Wood Energy Richard Vlosky, Director

    E-Print Network [OSTI]

    · The Louisiana Forest Products Development Center · Wood-to-Energy · Wood Biomass · Energy Options · Current-based Biomass Energy #12;2/20/2014 5 Forest Landowner Opportunities and Challenges The U.S. South is the "wood2/20/2014 1 Emerging Markets for Wood Energy Richard Vlosky, Director Crosby Land & Resources

  4. Wood Products Marketing And Value-Added Opportunities

    E-Print Network [OSTI]

    Wood Products Marketing And Value-Added Opportunities In Latin America: A Focus on Brazil Richard Vlosky, Ph.D. Professor-Forest Products Marketing Interim Director-Louisiana Forest Products Laboratory Industry Strategic Services & Publisher: WOOD Markets Monthly newsletter WOOD Markets 2002 - The Solid Wood

  5. Wood of Giant Sequoia: Properties and Unique Characteristics1

    E-Print Network [OSTI]

    Wood of Giant Sequoia: Properties and Unique Characteristics1 Douglas D. Piirto2 Abstract: Wood tree species. Wood properties such as specific gravity, various mechanical properties, extractive be considered for planting stock in managed production forests to increase future supplies of wood having

  6. 1Wood Borer --WB-XX-W Department of Entomology

    E-Print Network [OSTI]

    Pittendrigh, Barry

    1Wood Borer -- WB-XX-W WB-02-W Department of Entomology America's Least Wanted Wood-Borers CHINESE under the bark and in dry dead wood and complete their development in two or more years. Adults emerge campestris (Faldermann) (Coleoptera: Cerambycidae), an Asian wood-boring beetle recorded in North America

  7. Codes of constant Lee or Euclidean weight Jay A. Wood

    E-Print Network [OSTI]

    Wood, Jay

    Codes of constant Lee or Euclidean weight Jay A. Wood Department of Mathematics, Computer Science & Statistics Purdue University Calumet Hammond, Indiana 46323--2094 USA wood@calumet.purdue.edu http://www.calumet.purdue.edu/public/math/wood Scholarly Research Awards. #12; JAY A. WOOD 1. Linear codes as modules Throughout this extended abstract

  8. Wood Sci. Technol (DOI 10.1007/s00226-014-0676-6) Simulation of transverse wood compression using

    E-Print Network [OSTI]

    Nairn, John A.

    Wood Sci. Technol (DOI 10.1007/s00226-014-0676-6) Simulation of transverse wood compression using and Richardson Chair, Wood Science & Engineering Department, Oregon State University, Corvallis OR 97330, USA Received: 23 January 2014 Abstract Transverse compression of wood is a process that induces large

  9. Wood and Fiber Science, 37(1), 2005, pp. 95111 2004 by the Society of Wood Science and Technology

    E-Print Network [OSTI]

    Wood and Fiber Science, 37(1), 2005, pp. 95­111 © 2004 by the Society of Wood Science and Technology SURFACE AND INTERFACIAL CHARACTERIZATION OF WOOD-PVC COMPOSITE: IMAGING MORPHOLOGY AND WETTING wetting behavior of wood-PVC composites in this study. Two-dimensional and time-dependent profiles

  10. From the Woods to the Refinery

    Broader source: Energy.gov [DOE]

    Breakout Session 2D—Building Market Confidence and Understanding II: Carbon Accounting and Woody Biofuels From the Woods to the Refinery Stephen S. Kelley, Principal and Department Head, Department of Forest Biomaterials, North Carolina State University

  11. Robusta Eucalyptus Wood: Its Properties and Uses

    E-Print Network [OSTI]

    Robusta Eucalyptus Wood: Its Properties and Uses Roger G. Skolmen U. S. FOREST SERVICE RESEARCH in forestry from the University of California, Berkeley. #12;R obusta eucalyptus (Eucalyptus robusta Sm

  12. Logs Wood Chips Straw Corn Switchgrass

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

    Clean energy can come from the sun. The energy in wind can make electricity. Bioenergy comes from plants we can turn into fuel. Logs Wood Chips Straw Corn Switchgrass We can use...

  13. Marin County- Wood Stove Replacement Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Homes in the San Geronimo Valley (Forest Knolls, Lagunitas, San Geronimo, and Woodacre) can receive a rebate of $1,500 for the removal and replacement of non-certified wood burning appliances with...

  14. A Wood-Fired Gas Turbine Plant 

    E-Print Network [OSTI]

    Powell, S. H.; Hamrick, J. T.

    1986-01-01

    TURBINE PLANT Sam H. Powell, Tennessee Valley Authority, Chattanooga, Tennessee Joseph T. Hamrick, Aerospace Research Corporation, RBS Electric, Roanoke, VA Abstract This paper covers the research and development of a wood-fired gas turbine unit... of the walls. This wood?fired gas turbine unit could provide a low cost source of power for areas where conventional methods are now prohibitive and provide a means for recovering energy from a source that now poses disposal problems. When the Tennessee...

  15. PATTERNS OF DIFFUSIBILITY OF LIGNIN AND CARBOHYDRATE DEGRADING SYSTEMS IN WOOD-ROTTING FUNGI

    E-Print Network [OSTI]

    Rosenberg, S. L.

    2011-01-01

    selected Delignification of wood chips by mutant white-rotTemperature relations of wood-destroying fungi. Kaneshiro.phenoloxidases of selected wood-decaying basidiomycetes. J,

  16. How Wood Chip Size Affects Pretreatment Effectiveness of Woody Biomass for Biological Processing

    E-Print Network [OSTI]

    Tam, Jerry

    2013-01-01

    explosion pretreatment of wood: effect of chip size, acid,In: Soltes, E.J. (Ed. ), Wood and Agriculture Residues –D. , Wegener, G. , 1984. Wood: Chemistry, Ultrastructure,

  17. Marketing wood Products on the Internet: IHLA, 1998 Marketing Wood Products on the Internet

    E-Print Network [OSTI]

    Marketing wood Products on the Internet: IHLA, 1998 Marketing Wood Products on the Internet IHLA Fall Regional Meetings - 1998 Bob Smith "When history is written, the creation of the Internet may in the past few years than the Internet. Every major newspaper, magazine, and television station have covered

  18. Wood to Energy in Washington Page 1 of 5 Wood to Energy in Washington

    E-Print Network [OSTI]

    Brown, Sally

    energy or when used as transportation fuels. Woody biomass is an attractive alternative energy sourceWood to Energy in Washington Page 1 of 5 Wood to Energy in Washington: Imperatives, Opportunities Washington State lacks a cohesive strategy to reduce green house gases and for renewable energy development

  19. Environmental characterization studies of a high-throughput wood gasifier

    SciTech Connect (OSTI)

    Chang, H.; Niemann, R.C.; Wilzbach, K.E.; Paisley, M.

    1983-01-01

    Potential environmental effects associated with thermochemical biomass gasification have been studied by Argonne National Laboratory in cooperation with Battelle Columbus Laboratories (BCL). A series of samples from the process research unit of an indirectly heated, high-throughput wood gasifier operated by BCL has been analyzed for potentially toxic organic compounds and trace elements. The results indicate that, under the test-run conditions, the gasification of both pine and hardwood is accompanied by the formation of some oil, the heavier fraction of which gives a positive response in the Ames assay for mutagenicity and contains numerous phenols and polycyclic aromatic hydrocarbons, including some carcinogens. The implications of these observations are discussed.

  20. Wood-waste utilization. Hearings before the Subcommittee on Forests, Family Farms, and Energy of the Committee on Agriculture, House of Representatives, Ninety-Seventh Congress, Second Session, April 5, 1982, Mount Pleasant, Michigan; April 19, 1982, Springfield, Oregon

    SciTech Connect (OSTI)

    Not Available

    1982-01-01

    Hearings on the industrial potential and other uses of wood wastes were held in Mt. Pleasant, Michigan and Springfield, Oregon. Congressional reviews of forest resource planning and management to enhance wood and wood-product utilization have led to a series of hearings throughout the nation. Testimony by 32 witnesses included the views of universities, industry, forestry programs, the Tennessee Valley Authority, and state resource and agricultural agencies. The hearing record includes their testimony and additional material submitted for the record. (DCK)

  1. Black Pine Circle Project

    SciTech Connect (OSTI)

    Mytko, Christine

    2014-03-31

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  2. Black Pine Circle Project

    ScienceCinema (OSTI)

    Mytko, Christine

    2014-09-15

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  3. Name: Qinglin Wu Title: Roy O Martin Sr. Professor, Composites and Engineered Wood Products

    E-Print Network [OSTI]

    (ASTM), Philadelphia, PA · Forest Products Society, Madison, WI · Society of Wood and Science Technology. China. RESEARCH INTERESTS Wood and natural fiber polymer composites, engineered wood products, composite in wood fiber and polymer composites. Natural fiber reinforced composites from alloyed polymers

  4. Nesting Ducks of Tennessee Wood Ducks, Mallards, Hooded

    E-Print Network [OSTI]

    Gray, Matthew

    a teal and a mallard · Weight ­ about 1.5 lbs · Length ­ about 20 inches · Wings - broad, tail squared swamps · Wooded wetlands · Ponds and lakes with wooded shorelines, aquatic vegetation, woody debris

  5. Method of predicting mechanical properties of decayed wood

    DOE Patents [OSTI]

    Kelley, Stephen S.

    2003-07-15

    A method for determining the mechanical properties of decayed wood that has been exposed to wood decay microorganisms, comprising: a) illuminating a surface of decayed wood that has been exposed to wood decay microorganisms with wavelengths from visible and near infrared (VIS-NIR) spectra; b) analyzing the surface of the decayed wood using a spectrometric method, the method generating a first spectral data of wavelengths in VIS-NIR spectra region; and c) using a multivariate analysis to predict mechanical properties of decayed wood by comparing the first spectral data with a calibration model, the calibration model comprising a second spectrometric method of spectral data of wavelengths in VIS-NIR spectra obtained from a reference decay wood, the second spectral data being correlated with a known mechanical property analytical result obtained from the reference decayed wood.

  6. A study of the molecular mechanics of wood cell walls

    E-Print Network [OSTI]

    Adler, David, S.M. (David C.). Massachusetts Institute of Technology

    2013-01-01

    Wood is the original structural material, developed by nature to support tall plants. Every advantageous feature of wood as used in artificial structures is rooted in the plant's evolved capability to withstand the conditions ...

  7. Wood-Fiber/High-Density-Polyethylene Composites: Compounding Process

    E-Print Network [OSTI]

    Wood-Fiber/High-Density-Polyethylene Composites: Compounding Process J. Z. Lu,1 Q. Wu,1 I. I parameters for the wood-fiber/high-density-polyethylene blends at 60 rpm were a temperature of 180°C

  8. Extraction of -cellulose from mummified wood for stable isotopic analysis

    E-Print Network [OSTI]

    Gedalof, Ze'ev

    Extraction of -cellulose from mummified wood for stable isotopic analysis Benjamin A. Hook a cellulose can provide valuable paleocli- matic information at annual and subannual resolution, from time the trees grew. In the mummified wood, polysaccharides (hemicellulose, -cellulose) are frequently

  9. An Overview of the Louisiana Secondary Wood Products Industry

    E-Print Network [OSTI]

    Wu, Qinglin

    An Overview of the Louisiana Secondary Wood Products Industry Working Paper #1 Louisiana Forest Director Louisiana Furnishings Industry Association Ponchatoula, LA Dr. O. Victor Harding Assistant secondary wood products industry is underway at the Louisiana Forest Products Laboratory, Louisiana State

  10. International Trade of Wood Pellets (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2013-05-01

    The production of wood pellets has increased dramatically in recent years due in large part to aggressive emissions policy in the European Union; the main markets that currently supply the European market are North America and Russia. However, current market circumstances and trade dynamics could change depending on the development of emerging markets, foreign exchange rates, and the evolution of carbon policies. This fact sheet outlines the existing and potential participants in the wood pellets market, along with historical data on production, trade, and prices.

  11. Wood3 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 on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to: navigation,Wood County Electric Coop, Inc JumpWood3

  12. Dynamics of galaxy cores and supermassive black holes

    E-Print Network [OSTI]

    David Merritt

    2006-05-02

    Recent work on the dynamical evolution of galactic nuclei containing supermassive black holes is reviewed. Topics include galaxy structural properties; collisionless and collisional equilibria; loss-cone dynamics; and dynamics of binary and multiple supermassive black holes.

  13. Wood and Fiber Science, 35(3), 2003, pp. 381396 2003 by the Society of Wood Science and Technology

    E-Print Network [OSTI]

    Wood and Fiber Science, 35(3), 2003, pp. 381­396 2003 by the Society of Wood Science and Technology 2003, V. 35(3) sults in relatively loosely packed mats. Although mat density increases during hot

  14. California Wood Energy Program1 Gary Brittner2

    E-Print Network [OSTI]

    this natural and renewable energy resource for centuries. The timber industry in California has for many and environmental cost, benefits, and feasibility of utilizing wood for energy produc tion. We are also ableCalifornia Wood Energy Program1 Gary Brittner2 The California Department of Forestry Wood Energy

  15. Dead Wood: From Forester's Bane to Environmental Boon1

    E-Print Network [OSTI]

    Dead Wood: From Forester's Bane to Environmental Boon1 Jack Ward Thomas2 Abstract Forest managers is the first rule of intelligent tinkering." Dead wood, standing and down, is one of those "cogs and wheels wood in managed forests. Much of this new information will be discussed at this conference. What

  16. Deplump for Streaming Data Nicholas Bartlett Frank Wood

    E-Print Network [OSTI]

    Wood, Frank

    Deplump for Streaming Data Nicholas Bartlett Frank Wood Department of Statistics, Columbia of discrete sequences called the sequence memoizer [Wood et al., 2009]. Gasthaus et al. showed that although was reposed on a sequence memo- izer [Wood et al., 2009] whose space complexity was linear in the length

  17. Contributed Paper Wood Density as a Conservation Tool: Quantification

    E-Print Network [OSTI]

    Contributed Paper Wood Density as a Conservation Tool: Quantification of Disturbance to easily identify areas of old-growth forest. The average density of the wood of a tree species is closely wood density can be used to quantify forest disturbance and conservation importance. The average

  18. A Chemical Stain for Identifying Arsenic-Treated Wood

    E-Print Network [OSTI]

    Florida, University of

    A Chemical Stain for Identifying Arsenic-Treated Wood (FINAL) Submitted June 23, 2006 Amy Omae-TREATED WOOD II.1 Applying Phosphate Stains to Arsenate Stains 7 II.2 A Potential Arsenic-Test Kit 14 II.3 Whole Wood Application of the Modified Stannous Chloride Stain 19 II.4 Other Attempted Stain

  19. Strong RestrictedOrientation Convexity Eugene Fink # Derick Wood +

    E-Print Network [OSTI]

    Fink, Eugene

    Strong Restricted­Orientation Convexity Eugene Fink # Derick Wood + Abstract Strong restricted; Widmayer et al., 1987; Rawlins and Wood, 1987 ] , restricted­orientation convexity [ Rawlins, 1987; Rawlins and Wood, 1991; Schuierer, 1991 ] , NESW convexity [ Lipski and Papadimitriou, 1981; Soisalon

  20. HISTORICAL WOOD COLLECTION AT THE DENDROCHRONOLOGY LABORATORY, VYTAUTAS MAGNUS

    E-Print Network [OSTI]

    HISTORICAL WOOD COLLECTION AT THE DENDROCHRONOLOGY LABORATORY, VYTAUTAS MAGNUS UNIVERSITY Rtil, Kaunas, LT-3018, Lithuania, rutile_pukiene@fc.vdu.lt Abstract Historical wood has been collected at Kaunas dendrochronology laboratory since the laboratory foundation in 1968. The wood is used

  1. HOW TO IMPROVE DENDROGEOMORPHIC SAMPLING: VARIOGRAM ANALYSES OF WOOD DENSITY

    E-Print Network [OSTI]

    Butler, David R. - Department of Geography, Texas State University

    HOW TO IMPROVE DENDROGEOMORPHIC SAMPLING: VARIOGRAM ANALYSES OF WOOD DENSITY USING X-RAY COMPUTED de Drize, CH-1227 Carouge-Geneva, Switzerland ABSTRACT Knowledge of the spatial heterogeneity of wood understanding of 3-D wood density structure in tree stems damaged by geomorphic processes. X-ray computed

  2. Density-dependent diversification in North American wood warblers

    E-Print Network [OSTI]

    Rabosky, Daniel L.

    Density-dependent diversification in North American wood warblers Daniel L. Rabosky1,2,* and Irby J Cornell Laboratory of Ornithology, 159 Sapsucker Woods Road, Ithaca, NY 14850, USA Evidence from both diversification, and we demonstrate this approach using a new phylogeny of North American Dendroica wood warblers

  3. Wood in rivers: interactions with channel morphology and processes

    E-Print Network [OSTI]

    Montgomery, David R.

    Editorial Wood in rivers: interactions with channel morphology and processes No doubt about it, wood complicates fluvial geo- morphology. It messes up nice tidy streams, compli- cates quantitative through the study of channels lacking a substantial load of wood debris (Leopold et al., 1964

  4. Guide to Using Wood Ash as an Agricultural Soil Amendment

    E-Print Network [OSTI]

    New Hampshire, University of

    Guide to Using Wood Ash as an Agricultural Soil Amendment OLIVIA SAUNDERS, Extension Field Specialist "Wood ash contains significant amounts of potassium and calcium, while providing smaller amounts.unh.edu Spring 2014 UNH EXTENSION AGRICULTURE FACT SHEET Food & Agriculture Introduction Wood ash has a long

  5. Long-term outlook for engineered wood products in Europe

    E-Print Network [OSTI]

    Long-term outlook for engineered wood products in Europe Heikki Manninen Technical Report 91, 2014 #12;Long-term outlook for engineered wood products in Europe Heikki Manninen Publisher: European for future oriented market research of engineered wood products (EWP) in Europe. For example, the need for CO

  6. ERDCTR-14-3 Leonard Wood Institute

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ERDCTR-14-3 Leonard Wood Institute Anaerobic Digestion Assessment for Contingency Base Waste ERDC TR-14-3 May 2014 Anaerobic Digestion Assessment for Contingency Base Waste Victor F. Medina-1000 Under Work Unit 33143 #12;ERDC TR-14-3 ii Abstract A study was conducted to evaluate anaerobic digestion

  7. Wood Futures Conference 8 November 2007, London

    E-Print Network [OSTI]

    markets III. Certified forest products IV. Wood energy V. Conclusions VI. Recommendations VII. Questions, demand, and effects of renewable energy policies, Oct. 2007 · UNECE/FAO Forest resources assessment sustainably meet rising demand? Ed Pepke Forest Products Marketing Specialist UNECE/FAO Timber Section, Geneva

  8. Updated 1-12 Bryan H. Wood

    E-Print Network [OSTI]

    as an attorney with the Department of the Navy's Office of the General Counsel (OGC). Initially appointed as ONR Counsel in 2007, he was the first Navy OGC attorney to deploy to a combat zone in his civilian OGC Force-Horn of Africa (CJTF-HOA) in Djibouti, Africa. Mr. Wood began his career with Navy OGC

  9. Presentation at the PIE & Woods Energy Seminar

    E-Print Network [OSTI]

    Wechsler, Risa H.

    .3% Wind 2% 0.5% Geothermal 0.6% 0.3% Solar 0.1% 0.02% Source: EIA 2009; IEA World Energy Outlook 2008 #121 Presentation at the PIE & Woods Energy Seminar May 5, 2010 Burton Richter Freeman Spogli to the least effective technologies. 2 #12;3 Total Primary Energy Supply by Fuel Energy Source Percentage

  10. Woods Safety SFRC UF 7/09

    E-Print Network [OSTI]

    Watson, Craig A.

    Woods Safety SFRC UF 7/09 #12;Working alone #12;Poison Plants Poison ivy (Toxicodendron radicans) Poison oak (Toxicodendron pubescens) #12;Commonly Mistaken Plants Virginia creeper (Parthenocissus quinquefolia) Blackberry (Rubus spp.) Three leaflets let it be! #12;Poison Ivy/Oak Prevention: · Wear long

  11. Wood Fired Steam Plants in Georgia 

    E-Print Network [OSTI]

    Bulpitt, W. S.

    1983-01-01

    . Shortly after that time, Georgia Tech and the Georgia Forestry Commission embarked on a number of projects directed toward providing the use of wood as an industrial energy source. This paper will present an overview of these programs with an emphasis...

  12. Energie-Cits 2001 BIOMASS -WOOD

    E-Print Network [OSTI]

    Energie-Cités 2001 BIOMASS - WOOD Gasification / Cogeneration ARMAGH United Kingdom Gasification is transferring the combustible matters in organic waste or biomass into gas and pure char by burning the fuel via it allows biomass in small-scaled engines and co-generation units ­ which with conventional technologies

  13. Journal of Materials Education Vol. 32 (3-4): 125 -138 (2010) WOOD AND WOOD DERIVED MATERIALS

    E-Print Network [OSTI]

    North Texas, University of

    2010-01-01

    Witold Brostow, Tea Datashvili and Harrison Miller Laboratory of Advanced Polymers and Optimized point out the role of wood in the development of 'green' technologies. To provide a perspective, we. Keywords: wood, green materials, cellulosics, paper, polymer composites, art material 1. INTRODUCTION Wood

  14. Del Black

    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 Outreach Home Room NewsInformation Current HAB Packet HanfordDOEDanielDe novo Design ofDefects LeadDel Black Del

  15. Residential Wood Heating Fuel Exemption

    Broader source: Energy.gov [DOE]

    The New York Department of Taxation and Finance publishes a variety of sales tax reports detailing local tax rates and exemptions, including those for residential energy services. The residential...

  16. Pump apparatus including deconsolidator

    DOE Patents [OSTI]

    Sonwane, Chandrashekhar; Saunders, Timothy; Fitzsimmons, Mark Andrew

    2014-10-07

    A pump apparatus includes a particulate pump that defines a passage that extends from an inlet to an outlet. A duct is in flow communication with the outlet. The duct includes a deconsolidator configured to fragment particle agglomerates received from the passage.

  17. Relationship of Black Holes to Bulges

    E-Print Network [OSTI]

    David Merritt; Laura Ferrarese

    2001-07-08

    Supermassive black holes appear to be uniquely associated with galactic bulges. The mean ratio of black hole mass to bulge mass was until recently very uncertain, with ground based, stellar kinematical data giving a value roughly an order of magnitude larger than other techniques. The discrepancy was resolved with the discovery of the M-sigma relation, which simultaneously established a tight corrrelation between black hole mass and bulge velocity dispersion, and confirmed that the stellar kinematical mass estimates were systematically too large due to failure to resolve the black hole's sphere of influence. There is now excellent agreement between the various techniques for estimating the mean black hole mass, including dynamical mass estimation in quiescent galaxies; reverberation mapping in active galaxies and quasars; and computation of the mean density of compact objects based on integrated quasar light. Implications of the M-sigma relation for the formation of black holes are discussed.

  18. Fabrication of low-cost Mod-0A wood-composite wind-turbine blades

    SciTech Connect (OSTI)

    Lark, R.F.; Gougeon, M.; Thomas, G.; Zuteck, M.

    1983-02-01

    A contract was awarded to Gougeon Brothers, Inc., by NASA Lewis Research Center, under Department of Energy sponsorship, for the development and fabrication of two 60-foot, low-cost wood composite blades for service on a 200-kW Mod-0A wind turbine machine. The contractural effort consisted of blade design and analysis and fabrication phases. This report provides a brief summary of the design and analysis phase, and an indepth review of the blade fabrication phase. The wood composite blades were fabricated by using epoxy resin-bonded laminates of Douglas fir veneers for the leading edge spar sections and honeycomb-cored birch plywood panels for the blade trailing edge or afterbody sections. The blade was joined to the wind turbine hub assembly by epoxy resin-bonded steel load takeoff studs. The wood composite blades were installed in the newest Mod-0A wind turbine test facility at Kukuku, Hawaii called Makini Huila (wind wheel) by the Hawaiians. The wood composite blades have successfully completed high power (average of 150 kW) operations for an 18-month period (nearly 8000 h) prior to replacement with another set of wood composite blades. The original set of blades were taken out of service because of the failure of the shank on one stud. An inspection of the blades at NASA Lewis showed that the shank failure was caused by a high stress concentration at a corrosion pit on the shank fillet radius which resulted in fatigue stresses in excess of the endurance limit. The remainder of the blade, including the embedded portion of the fractured stud, and the entire wood structure was found to be in excellent condition. All of the remaining studs, with the exception of four studs that showed an onset of corrosion, were also in excellent condition. The failed stud, as well as four of the corroded studs were successfully replaced with new studs. The blade is currently in a service-ready condition.

  19. Wood panel earth shelter construction

    SciTech Connect (OSTI)

    Berg, J.R.; Loveless, J.G.; Senkow, W.

    1986-05-27

    An earth sheltered building is described including an arch structure, the structure including footings, a floor extending between the footings and arch means extending between the footings and having a base having lower ends on the footings for defining an enclosure which is covered with earth and open at opposite ends. The arch structure consists of: joined, curved wooden panel sections arranged in tandem in adjacent rows with more than two panel sections in a row, each of the sections including circumferentially extending wooden side members; wooden sheathing sections overlying the top skins of panel sections, the sheathing including a plurality of plywood sheets lapped over the joints between the panel sections and treated with a preservative; an adhesive joining the panel sections together within each row and to adjacent rows; waterproofing means on the sheathing for waterproofing the exterior surface of the arch means; connecting means engaging the base of the arch means at the footings and within the floor for tying the base together at its lower ends; and end walls and fastener means for joining the end walls to lateral edges of the arch means, the end walls dimensioned to extend above the arch means to retain earth placed on the arch means.

  20. Location and Geology Fig 1. The Macasty black shale

    E-Print Network [OSTI]

    to the chondritic uniform reservoir (CHUR; black line) and the depleted mantle (purple line). The parameters of CHUR by calcite. Fig. 5. Pyritized fracture Fig. 6. Massive black shale Fig. 7. Graptolite in black shale Fig. 8 shale, - Measure the concentrations of major, minor and trace elements including organic carbon

  1. Holographic Black Hole Chemistry

    E-Print Network [OSTI]

    Andreas Karch; Brandon Robinson

    2015-11-02

    Thermodynamic quantities associated with black holes in Anti-de Sitter space obey an interesting identity when the cosmological constant is included as one of the dynamical variables, the generalized Smarr relation. We show that this relation can easily be understood from the point of view of the dual holographic field theory. It amounts to the simple statement that the extensive thermodynamic quantities of a large $N$ gauge theory only depend on the number of colors, $N$, via an overall factor of $N^2$.

  2. The Spinless Relativistic Woods-Saxon Problem

    E-Print Network [OSTI]

    Wolfgang Lucha; Franz F. Schoberl

    2014-03-14

    Motivated by the observation of a recent renewal of rather strong interest in the description of bound states by (semi-) relativistic equations of motion, we revisit, for the example of the Woods-Saxon interactions, the eigenvalue problem posed by the spinless Salpeter equation and recall various elementary knowledge, considerations, and techniques that practitioners seeking solutions to this specific reduction of the Bethe-Salpeter equation may find helpful.

  3. Urban Wood-Based Bio-Energy Systems in Seattle

    SciTech Connect (OSTI)

    Stan Gent, Seattle Steam Company

    2010-10-25

    Seattle Steam Company provides thermal energy service (steam) to the majority of buildings and facilities in downtown Seattle, including major hospitals (Swedish and Virginia Mason) and The Northwest (Level I) Regional Trauma Center. Seattle Steam has been heating downtown businesses for 117 years, with an average length of service to its customers of 40 years. In 2008 and 2009 Seattle Steam developed a biomass-fueled renewable energy (bio-energy) system to replace one of its gas-fired boilers that will reduce greenhouse gases, pollutants and the amount of waste sent to landfills. This work in this sub-project included several distinct tasks associated with the biomass project development as follows: a. Engineering and Architecture: Engineering focused on development of system control strategies, development of manuals for start up and commissioning. b. Training: The project developer will train its current operating staff to operate equipment and facilities. c. Flue Gas Clean-Up Equipment Concept Design: The concept development of acid gas emissions control system strategies associated with the supply wood to the project. d. Fuel Supply Management Plan: Development of plans and specifications for the supply of wood. It will include potential fuel sampling analysis and development of contracts for delivery and management of fuel suppliers and handlers. e. Integrated Fuel Management System Development: Seattle Steam requires a biomass Fuel Management System to track and manage the delivery, testing, processing and invoicing of delivered fuel. This application will be web-based and accessed from a password-protected URL, restricting data access and privileges by user-level.

  4. Syst. Biol. 50(2):215242, 2001 Analysis of Character Correlations Among Wood Decay Mechanisms,

    E-Print Network [OSTI]

    Hibbett, David S.

    Syst. Biol. 50(2):215­242, 2001 Analysis of Character Correlations Among Wood Decay Mechanisms of wood-decaying fungi. Two basic forms of wood decay are known in homobasidiomycetes: white rot, in which analyses; wood decay.] The vast majority of terrestrial biomass takes the form of wood and other plant tis

  5. Formation of wood grain: self-organization through alignment of elongated cells II

    E-Print Network [OSTI]

    van Gaans, Onno

    Formation of wood grain: self-organization through alignment of elongated cells II Roeland Merks-like textures of wood (see Figure 1). These textures, called wood grain, form as new, elongated cells that are deposited on top of the existing wood in the vascular cambium, and align with the existing wood grain

  6. Where Wood Works Harnessing the Energy of Woody Biomass in Colorado

    E-Print Network [OSTI]

    by wood pellet stoves, to large multi- building campuses heated by commercial wood chip boilers. SoonWhere Wood Works Harnessing the Energy of Woody Biomass in Colorado #12;Sun Wood Boiler Energy Energy CO2 CO2 Wood Fuel Nutrients AshNutrients Woody biomass is stored solar energy that is available 24

  7. Isolation of levoglucosan from lignocellulosic pyrolysis oil derived from wood or waste newsprint

    DOE Patents [OSTI]

    Moens, Luc (Lakewood, CO)

    1995-01-01

    A method is provided for preparing high purity levoglucosan from lignocellulosic pyrolysis oils derived from wood or waste newsprint. The method includes reducing wood or newsprint to fine particle sizes, treating the particles with a hot mineral acid for a predetermined period of time, and filtering off and drying resulting solid wood or newsprint material; pyrolyzing the dried solid wood or newsprint material at temperatures between about 350.degree. and 375.degree. C. to produce pyrolysis oils; treating the oils to liquid-liquid extraction with methyl isobutyl ketone to remove heavy tar materials from the oils, and to provide an aqueous fraction mixture of the oils containing primarily levoglucosan; treating the aqueous fraction mixtures with a basic metal salt in an amount sufficient to elevate pH values to a range of about 12 to about 12.5 and adding an amount of the salt in excess of the amount needed to obtain the pH range to remove colored materials of impurities from the oil and form a slurry, and freeze-drying the resulting slurry to produce a dry solid residue; and extracting the levoglucosan from the residue using ethyl acetate solvent to produce a purified crystalline levoglucosan.

  8. Isolation of levoglucosan from lignocellulosic pyrolysis oil derived from wood or waste newsprint

    DOE Patents [OSTI]

    Moens, L.

    1995-07-11

    A method is provided for preparing high purity levoglucosan from lignocellulosic pyrolysis oils derived from wood or waste newsprint. The method includes reducing wood or newsprint to fine particle sizes, treating the particles with a hot mineral acid for a predetermined period of time, and filtering off and drying resulting solid wood or newsprint material; pyrolyzing the dried solid wood or newsprint material at temperatures between about 350 and 375 C to produce pyrolysis oils; treating the oils to liquid-liquid extraction with methyl isobutyl ketone to remove heavy tar materials from the oils, and to provide an aqueous fraction mixture of the oils containing primarily levoglucosan; treating the aqueous fraction mixtures with a basic metal salt in an amount sufficient to elevate pH values to a range of about 12 to about 12.5 and adding an amount of the salt in excess of the amount needed to obtain the pH range to remove colored materials of impurities from the oil and form a slurry, and freeze-drying the resulting slurry to produce a dry solid residue; and extracting the levoglucosan from the residue using ethyl acetate solvent to produce a purified crystalline levoglucosan. 2 figs.

  9. Noncommutative Black-Body Radiation: Implications On Cosmic Microwave Background

    E-Print Network [OSTI]

    Amir H. Fatollahi; Maryam Hajirahimi

    2006-07-12

    Including loop corrections, black-body radiation in noncommutative space is anisotropic. A direct implication of possible space noncommutativity on the Cosmic Microwave Background map is argued.

  10. The Honorable John T. 'Gregorio 301 N. Wood Avenue

    Office of Legacy Management (LM)

    Eiergy ; Washington, DC 20585 -, (, > - .' c ' . FEB 1 7 1995 .; , -, The Honorable John T. 'Gregorio 301 N. Wood Avenue Linden, 'New Jersey 07036 d. Dear Mayor Gregorio: ,'...

  11. Wood-boring Insects of Trees and Shrubs 

    E-Print Network [OSTI]

    Drees, Bastiaan M.; Jackman, John A.; Merchant, Michael E.

    2008-06-17

    This publication explains how to identify and control wood-boring insects that invade shrubs and shade trees in Texas. 12 pages, 9 figures, 6 photographs, 1 table...

  12. Building America Case Study: Retrofit Measure for Embedded Wood...

    Energy Savers [EERE]

    Existing Homes Building America Case Study Retrofit Measures for Embedded Wood Members in Insulated Mass Masonry Walls Lawrence, Massachusetts PROJECT INFORMATION Project Name: The...

  13. I am Black AND Jewish: Black Jewish Women’s Experiences in “White” Jewish Communities in Brazil

    E-Print Network [OSTI]

    Gondek, Abby S.

    2008-01-01

    ideal after scientific racism. Black into white: Race andbut continues to enact racism and anti-Semitism (Barcelos,context demonstrates why racism (including anti-Semitism) is

  14. Implications for the Future of Treated Wood in Four U.S. Demand Sectors

    E-Print Network [OSTI]

    Implications for the Future of Treated Wood in Four U.S. Demand Sectors Todd F. Shupe Associate are a thousand times less than a lethal dose." Chromated Copper Arsenate-Treated Wood (Pressure Treated Wood

  15. Life in the woods : production and consumption of the urban forest

    E-Print Network [OSTI]

    Volicer, Nadine (Nadine M.)

    2012-01-01

    The use of wood is fraught with paradox. Wood as a building material is embraced for its naturalness, while the cutting of trees is indicted as a destruction of nature. Wood is lauded for its structural properties and ...

  16. Coextruded Polyethylene and Wood-Flour Composite: Effect of Shell Thickness, Wood Loading, and Core

    E-Print Network [OSTI]

    Appl Polym Sci 118: 3594­3601, 2010 Key words: coextrusion; mechanical properties; recycling recycled polyethylene and wood-flour composites with core­shell structure were manufactured using a pilot to use recycled, low quality plastic-fiber blends in the core layer. VC 2010 Wiley Periodicals, Inc. J

  17. Seneca Creek Associates, LLC Wood Resources International, LLC "Illegal" Logging and Global Wood Markets

    E-Print Network [OSTI]

    products exporters competing in the global market. This study was commissioned by the American Forest of illegally produced and traded wood products on the ability of U.S. producers to export into key overseas · Indonesia · Japan · Malaysia · Europe (EU-15) · West/Central Africa · Russia Collectively, these countries

  18. Fourier Analysis of the BTZ Black Hole

    E-Print Network [OSTI]

    Ian M. Tolfree

    2009-11-11

    In this paper we extend our previous work regarding the role of the Fourier transformation in bulk to boundary mappings to include the BTZ black hole. We follow standard procedures for modifying Fourier Transformations to accommodate quotient spaces and arrive at a bulk to boundary mapping in a black hole background. We show that this mapping is consistent with known results and lends a new insight into the AdS/CFT duality. We find that the micro-states corresponding to the entropy of a bulk scalar field are the Fourier coefficients on the boundary, which transform under the principal series representation of $SL(2,R)$. Building upon this we present a toy model to analyze the implications of this for the origin of black hole entropy. We find that the black hole micro-states live on the boundary and correspond to the possible emission modes of the black hole

  19. How fast can a black hole rotate?

    E-Print Network [OSTI]

    Herdeiro, Carlos A R

    2015-01-01

    Kerr black holes have their angular momentum, $J$, bounded by their mass, $M$: $Jc\\leqslant GM^2$. There are, however, known black hole solutions violating this Kerr bound. We propose a very simple universal bound on the rotation, rather than on the angular momentum, of four-dimensional, stationary and axisymmetric, asymptotically flat black holes, given in terms of an appropriately defined horizon linear velocity, $v_H$. The $v_H$ bound is simply that $v_H$ cannot exceed the velocity of light. We verify the $v_H$ bound for known black hole solutions, including some that violate the Kerr bound, and conjecture that only extremal Kerr black holes saturate the $v_H$ bound.

  20. Wood, Wisconsin: 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| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:Wizard Power Pty Ltd Jump to:Texas: EnergyWood, Wisconsin:

  1. Beverly Woods | 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 WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERTWater SavingsBetterBeverly Woods

  2. Duffield Wood Pellets | 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 E LISTStar2-0057-EA Jump to:of the National ClimateDongyingOpen Energy3)Duffield Wood

  3. Arbuthnott Wood Pellets Ltd | 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 JEnvironmental Jump to:EAandAmminex A S Jump to:AngolaEnergyAquaAratua CentralArbuthnott Wood

  4. Keeler-Pennwalt Wood Pole Removal

    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 likeUniverseIMPACTThousand Cubic Feet) Sold toKeeler-Pennwalt-Wood-Pole-Removal Sign

  5. The use of a permanent magnet for water content measurements of wood chips

    E-Print Network [OSTI]

    2001-01-01

    of a Permanent Magnet for Water Content Measurements of Wooda device that measures the water content of wood chips, pulpsystem. The results of water content measurements in wood

  6. UGA DESIGN & CONSTRUCTION SUPPLEMENTAL GENERAL REQUIREMENTS & STANDARDS GENERAL WOOD, PLASTICS, & COMPOSITES REQUIREMENTS

    E-Print Network [OSTI]

    Arnold, Jonathan

    UGA DESIGN & CONSTRUCTION SUPPLEMENTAL GENERAL REQUIREMENTS & STANDARDS GENERAL WOOD, PLASTICS, & COMPOSITES REQUIREMENTS JANUARY 16, 2015 06 00 00-1 06 00 00 GENERAL WOOD, PLASTICS, & COMPOSITES

  7. Tension wood holds clues to higher fuel yields from biomass crops...

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

    Tension wood holds clues to higher fuel yields from biomass crops October 25, 2011 Poplar stems (left) respond to bending stress by producing tension wood, which has...

  8. Supermassive Black Holes

    E-Print Network [OSTI]

    Laura Ferrarese; David Merritt

    2002-06-13

    After a brief historical introduction, we summarize current efforts and accomplishments in the study of supermassive black holes.

  9. Wood Products Marketing And Value-Added Opportunities

    E-Print Network [OSTI]

    Wood Products Marketing And Value-Added Opportunities Richard Vlosky, Ph.D. Professor-Forest Products Marketing Interim Director-Louisiana Forest Products Laboratory School of Renewable Natural, R.E. Taylor & Associates Ltd. Forest Industry Strategic Services & Publisher: WOOD Markets Monthly

  10. Wood-based Energy Technologies Michigan offers some significant advantages

    E-Print Network [OSTI]

    in the United States has been increasing. Using wood to feed a Combined Heat and Power (CHP) station produces has a range of applica- tions, and these vary among the technologies. For instance, wind power generates electricity rather than heat or transportation fuel. Similarly, wood-based technologies have

  11. Wood Engineering Education Trends and Challenges Rakesh Gupta1

    E-Print Network [OSTI]

    Gupta, Rakesh

    Wood Engineering Education ­ Trends and Challenges Rakesh Gupta1 and Vijaya Gopu2 1 Member ASCE, Associate Professor, Department of Wood Science and Engineering, Oregon State University, Corvallis, Professor and Chair, Department of Civil and Environmental Engineering, Tulane University, New Orleans, LA

  12. SECO - Dow Corning's Wood Fueled Industrial Cogeneration Project 

    E-Print Network [OSTI]

    Betts, W. D.

    1982-01-01

    In 1979, Dow Corning Corporation decided to build a wood fueled steam and electric cogeneration (SECO) power plant at Midland, Michigan. This decision was prompted by the high cost of oil and natural gas, an abundant supply of wood in mid Michigan...

  13. Fibre Based Modeling of Wood Dynamics and Fracture

    E-Print Network [OSTI]

    Bridson, Robert

    Fibre Based Modeling of Wood Dynamics and Fracture by Sean Meiji Sutherland B.Sc., The University for the simulation of the dynamics and fracturing char- acteristics of wood, specifically its anisotropic behaviour bundles of fibres. Additionally, we describe the conditions under which fracture occurs in the material

  14. Wood for energy at Bedgebury Forest Bedgebury visitor centre's

    E-Print Network [OSTI]

    Wood for energy at Bedgebury Forest Bedgebury visitor centre's woodfuel boiler provides a renewable, and a woodfuel boiler provides space heating and hot water. Wood for the boiler comes from Bedgebury Forest and chipped to provide fuel for a 40 kilowatt Austrian-made boiler, which has been installed to provide

  15. Classical and Quantum Properties of Liouville Black Holes

    E-Print Network [OSTI]

    R. B. Mann

    1994-04-25

    Black hole spacetimes can arise when a Liouville field is coupled to two- dimensional gravity. Exact solutions are obtained both classically and when quantum corrections due to back reaction effects are included. The black hole temperature depends upon the mass and the thermodynamic limit breaks down before evaporation of the black hole is complete, indicating that higher-loop effects must be included for a full description of the process.

  16. Black Pine Engineering

    Office of Energy Efficiency and Renewable Energy (EERE)

    Black Pine Engineering is commercializing a disruptive technology in the turbomachinery industry. Using a patented woven composite construction, Black Pine Engineering can make turbomachines (turbines, compressors) that are cheaper and lighter than competing technologies. Using this technology, Black Pine Engineering will sell turbo-compressors which solve the problem of wasted steam in geothermal power plants.

  17. NEW EDITION! The most comprehensive review of international trade in wood fiber, for the pulp, MDF and biomass industries.

    E-Print Network [OSTI]

    in the business of international trade of woodchips, pulplogs and biomass fiber. This annual report examines in more than 35 countries. This study also includes data on specialized woodchip carriers, examines the international market for biomass wood fiber and provides projections for the Asian woodchip markets in 2010

  18. Biomass plants face wood supply risks Report warns giant new biomass power plants will be hugely reliant on wood chip

    E-Print Network [OSTI]

    Biomass plants face wood supply risks Report warns giant new biomass power plants will be hugely's biomass energy sector could be undermined unless businesses move to resolve the supply chain issues-scale biomass plants will leave generators largely reliant on biomass from overseas such as wood chips, elephant

  19. Magnetized static black Saturn

    E-Print Network [OSTI]

    Stoytcho S. Yazadjiev

    2008-02-06

    We construct a new static solution to the 5D Einstein-Maxwell equations describing a static black hole surrounded by a non-rotating dipole black ring. The configuration is kept in equilibrium by an external magnetic field interacting with the dipole charge of the black ring. The properties of the black Saturn-like configuration are studied and the basic physical quantities are calculated. The solution demonstrates 2-fold continuous non-uniqueness of the 5D magnetized static neutral black objects for fixed total mass and Melvin background.

  20. Bounding the role of black carbon in the climate system: A scientific assessment

    E-Print Network [OSTI]

    2013-01-01

    with wood logs and wood pellets, Atmos. Environ. , 38 (25),designed to burn pellets of sawdust, wood, or other biomassbriquettes, pellets, and charcoal made from either wood or

  1. Multipass comminution process to produce precision wood particles of uniform size and shape with disrupted grain structure from wood chips

    DOE Patents [OSTI]

    Dooley, James H; Lanning, David N

    2014-05-27

    A process of comminution of wood chips (C) having a grain direction to produce a mixture of wood particles (P), wherein the wood chips are characterized by an average length dimension (L.sub.C) as measured substantially parallel to the grain, an average width dimension (W.sub.C) as measured normal to L.sub.C and aligned cross grain, and an average height dimension (H.sub.C) as measured normal to W.sub.C and L.sub.C, and wherein the comminution process comprises the step of feeding the wood chips in a direction of travel substantially randomly to the grain direction one or more times through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of wood chip travel.

  2. Implementing Strategies for Drying and Pressing Wood Without Emissions Controls

    SciTech Connect (OSTI)

    Sujit Banerjee; Terrance Conners

    2007-09-07

    Drying and pressing wood for the manufacture of lumber, particleboard, oriented strand board (OSB), veneer and medium density fiberboard (MDF) release volatile organic compounds (VOCs) into the atmosphere. These emissions require control equipment that are capital-intensive and consume significant quantities of natural gas and electricity. The objective of our work was to understand the mechanisms through which volatile organic compounds are generated and released and to develop simple control strategies. Of the several strategies developed, two have been implemented for OSB manufacture over the course of this study. First, it was found that increasing final wood moisture by about 2-4 percentage points reduced the dryer emissions of hazardous air pollutants by over 70%. As wood dries, the escaping water evaporatively cools the wood. This cooling tapers off wood when the wood is nearly dry and the wood temperature rises. Thermal breakdown of the wood tissue occurs and VOCs are released. Raising the final wood moisture by only a few percentage points minimizes the temperature rise and reduces emissions. Evaporative cooling also impacts has implications for VOC release from wood fines. Flaking wood for OSB manufacture inevitable generates fines. Fines dry out rapidly because of their high surface area and evaporative cooling is lost more rapidly than for flakes. As a result, fines emit a disproportionate quantity of VOCs. Fines can be reduced in two ways: through screening of the green furnish and through reducing their generation during flaking. The second approach is preferable because it also increased wood yield. A procedure to do this by matching the sharpness angle of the flaker knife to the ambient temperature was also developed. Other findings of practical interests are as follows: Dielectric heating of wood under low-headspace conditions removes terpenes and other extractives from softwood; The monoterpene content in trees depend upon temperature and seasonal effects; Method 25A emissions from lumber drying can be modeled from a knowledge of the airflow through the kiln; A heat transfer model shows that VOCs released during hot-pressing mainly originate from the surface of the board; and Boiler ash can be used to adsorb formaldehyde from air streams.

  3. Charged Cylindrical Black Holes in Conformal Gravity

    E-Print Network [OSTI]

    Jackson Levi Said; Joseph Sultana; Kristian Zarb Adami

    2013-01-04

    Considering cylindrical topology we present the static solution for a charged black hole in conformal gravity. We show that unlike the general relativistic case there are two different solutions, both including a factor that when set to zero recovers the familiar static charged black string solution in Einstein's theory. This factor gives rise to a linear term in the potential that also features in the neutral case and may have significant ramifications for particle trajectories.

  4. An economical and market analysis of Canadian wood pellets.

    SciTech Connect (OSTI)

    Peng, J. [University of British Columbia, Vancouver

    2010-08-01

    This study systematically examined the current and future wood pellet market, estimated the cost of Canadian torrefied pellets, and compared the torrefied pellets with the conventional pellets based on literature and industrial data. The results showed that the wood pellet industry has been gaining significant momentum due to the European bioenergy incentives and the rising oil and natural gas prices. With the new bioenergy incentives in USA, the future pellets market may shift to North America, and Canada can potentially become the largest pellet production centre, supported by the abundant wood residues and mountain pine beetle (MPB) infested trees.

  5. Dynamics of wood recruitment in streams of the northeastern US Dana R. Warren a,

    E-Print Network [OSTI]

    Keeton, William S.

    Dynamics of wood recruitment in streams of the northeastern US Dana R. Warren a, *, Clifford E of Ecosystem Studies, Box AB, Millbrook, NY 12545, United States 1. Introduction Large wood and accumulations of large wood (wood jams) are widely recognized as important features in forested stream ecosystems. Large

  6. The Effects of Large Wood on Stream Channel Morphology on Three Low-

    E-Print Network [OSTI]

    The Effects of Large Wood on Stream Channel Morphology on Three Low- Gradient Stream Reaches that large wood has a prominent role in habitat quality, however there is little research on the role of wood large wood loadings (759 vs. 329 vs. 39 m3 /ha). This study devises a new classification methodology

  7. Proceedings of the Symposium on the Ecology and Management of Dead Wood

    E-Print Network [OSTI]

    Proceedings of the Symposium on the Ecology and Management of Dead Wood in Western Forests November .................................................ix Importance of Dead and Downed Wood....................................1 Dead Wood: From Forester's Bane to Environmental Boon...................3 Jack Ward Thomas Decaying Wood: An Overview of Its

  8. Copyright (to be inserted by Humphrey) Thermal and Dynamic-mechanical Properties of Wood-PVC

    E-Print Network [OSTI]

    Citation & Copyright (to be inserted by Humphrey) Thermal and Dynamic-mechanical Properties of Wood properties, maleation, thermal analysis, wood veneer, wood-PVC composites ABSTRACT The influence of maleation on thermal and dynamic-mechanical properties of wood-PVC composites was investigated in this study

  9. Society of Wood Science and Technology State-of-the-Art Review

    E-Print Network [OSTI]

    Society of Wood Science and Technology State-of-the-Art Review CHEMICAL COUPLING IN WOOD FIBER) ABSTRACT Coupling agents in wood fiber and polymer composites (WFPC) play a very important role in improving the compatibility and adhesion between polar wood fibers and non-polar polymeric matri- ces

  10. The Warm Local ISM: Structure, Properties, and Theory Jeffrey L. Linsky, Seth Redfield, & Brian Wood

    E-Print Network [OSTI]

    Linsky, Jeffrey L.

    Wood JILA, University of Colorado, Boulder CO 80309­0440 USA Abstract. Ultraviolet spectra), and the second by Wood, Linsky, & Zank (2000) and by Wood, M¨uller, & Zank (2000). In this talk, we al (1995) and Wood et al (1996). Early­type stars and hot white dwarfs also prove background

  11. The Impact of the Russian Tariff on Japanese Demand for Wood Products CINTRAFOR News is

    E-Print Network [OSTI]

    extent, residential housing has always been one of the major drivers of wood demand in JapanThe Impact of the Russian Tariff on Japanese Demand for Wood Products CINTRAFOR News is available will consider the potential impact on Chinese demand for wood products.) Japanese Market for Wood Products Japan

  12. Alternative Chemicals and Improved Disposal-End Management Practices for CCA-treated Wood

    E-Print Network [OSTI]

    Florida, University of

    Wood Ash Samples Used in This Study. Regulatory Levels Provided for Comparison. Table II.1 Alternative

  13. Proceedings of the black liquor research program review fourth meeting held July 28--30, 1987

    SciTech Connect (OSTI)

    Emerson, D. B.; Whitworth, B. A.

    1987-10-01

    Research programs, presented at the black liquor review meeting are described. Research topics include the following: Cooperative Program in Kraft Recovery; Black Liquor Physical Properties; Viscosity of Strong Black Liquor; Ultrafiltration of Kraft Black Liquor; Molecular Weight Distribution of Kraft Lignin; Black Liquor Droplet Formation Project; Fundamental Studies of Black Liquor Combustion; Black Liquor Combustion Sensors; Flash X-ray Imagining of Black Liquor Sprays; Laser Induced Fluorescence For Process Control In The Pulp and Paper Industry; Recovery Boiler Optimization; Black Liquor Gasification and Use of the Products in Combined-Cycle Cogeneration; Black Liquor Steam Plasma Automization; The B and W Pyrosonic 2000R System; Monsteras Boiler Control System; and Cooperative Program Project Reviews. Individual projects are processed separately for the data bases.

  14. Bicycling Black Rings

    E-Print Network [OSTI]

    Henriette Elvang; Maria J. Rodriguez

    2008-01-25

    We present detailed physics analyses of two different 4+1-dimensional asymptotically flat vacuum black hole solutions with spin in two independent planes: the doubly spinning black ring and the bicycling black ring system ("bi-rings"). The latter is a new solution describing two concentric orthogonal rotating black rings which we construct using the inverse scattering technique. We focus particularly on extremal zero-temperature limits of the solutions. We construct the phase diagram of currently known zero-temperature vacuum black hole solutions with a single event horizon, and discuss the non-uniqueness introduced by more exotic black hole configurations such as bi-rings and multi-ring saturns.

  15. Bicycling Black Rings

    E-Print Network [OSTI]

    Elvang, Henriette

    2008-01-01

    We present detailed physics analyses of two different 4+1-dimensional asymptotically flat vacuum black hole solutions with spin in two independent planes: the doubly spinning black ring and the bicycling black ring system ("bi-rings"). The latter is a new solution describing two concentric orthogonal rotating black rings which we construct using the inverse scattering technique. We focus particularly on extremal zero-temperature limits of the solutions. Such limits exist for both types of solutions; for the bi-rings it is obtained when the two rings drag each other to extremality through the effect of gravitational frame-dragging. We construct the phase diagram of currently known zero-temperature vacuum black hole solutions with a single event horizon, and discuss the non-uniqueness introduced by more exotic black hole configurations such as bi-rings and multi-ring saturns.

  16. Topological Black Holes -- Outside Looking In

    E-Print Network [OSTI]

    R. B. Mann

    1997-09-15

    I describe the general mathematical construction and physical picture of topological black holes, which are black holes whose event horizons are surfaces of non-trivial topology. The construction is carried out in an arbitrary number of dimensions, and includes all known special cases which have appeared before in the literature. I describe the basic features of massive charged topological black holes in $(3+1)$ dimensions, from both an exterior and interior point of view. To investigate their interiors, it is necessary to understand the radiative falloff behaviour of a given massless field at late times in the background of a topological black hole. I describe the results of a numerical investigation of such behaviour for a conformally coupled scalar field. Significant differences emerge between spherical and higher genus topologies.

  17. Thermovoltaic semiconductor device including a plasma filter

    DOE Patents [OSTI]

    Baldasaro, Paul F. (Clifton Park, NY)

    1999-01-01

    A thermovoltaic energy conversion device and related method for converting thermal energy into an electrical potential. An interference filter is provided on a semiconductor thermovoltaic cell to pre-filter black body radiation. The semiconductor thermovoltaic cell includes a P/N junction supported on a substrate which converts incident thermal energy below the semiconductor junction band gap into electrical potential. The semiconductor substrate is doped to provide a plasma filter which reflects back energy having a wavelength which is above the band gap and which is ineffectively filtered by the interference filter, through the P/N junction to the source of radiation thereby avoiding parasitic absorption of the unusable portion of the thermal radiation energy.

  18. Accreting Black Holes

    E-Print Network [OSTI]

    Begelman, Mitchell C

    2014-01-01

    I outline the theory of accretion onto black holes, and its application to observed phenomena such as X-ray binaries, active galactic nuclei, tidal disruption events, and gamma-ray bursts. The dynamics as well as radiative signatures of black hole accretion depend on interactions between the relatively simple black-hole spacetime and complex radiation, plasma and magnetohydrodynamical processes in the surrounding gas. I will show how transient accretion processes could provide clues to these interactions. Larger global magnetohydrodynamic simulations as well as simulations incorporating plasma microphysics and full radiation hydrodynamics will be needed to unravel some of the current mysteries of black hole accretion.

  19. The role of water in the behavior of wood

    E-Print Network [OSTI]

    Dominique Derome; Ahmad Rafsanjani; Stefan Hering; Martin Dressler; Alessandra Patera; Christian Lanvermann; Marjan Sedighi-Gilani; Falk K. Wittel; Peter Niemz; Jan Carmeliet

    2015-09-17

    Wood, due to its biological origin, has the capacity to interact with water. Sorption/desorption of moisture is accompanied with swelling/shrinkage and softening/hardening of its stiffness. The correct prediction of the behavior of wood components undergoing environmental loading requires that the moisture behavior and mechanical behavior of wood are considered in a coupled manner. We propose a comprehensive framework using a fully coupled poromechanical approach, where its multiscale implementation provides the capacity to take into account, directly, the exact geometry of the wood cellular structure, using computational homogenization. A hierarchical model is used to take into account the subcellular composite-like organization of the material. Such advanced modeling requires high resolution experimental data for the appropriate determination of inputs and for its validation. High-resolution x-ray tomography, digital image correlation, and neutron imaging are presented as valuable methods to provide the required information.

  20. In-Depth Temperature Profiles in Pyrolyzing Wood 

    E-Print Network [OSTI]

    Reszka, Pedro

    The move towards performance-based design of the fire resistance of structures requires more accurate design methods. An important variable in the fire performance of timber structures is the in-depth temperature distribution, as wood is weakened...

  1. Kilowatts From Waste Wood In The Furniture Industry 

    E-Print Network [OSTI]

    Nailen, R. L.

    1981-01-01

    recently, the Singer Furniture Co., Lenoir, N. Carolina, purchased a 450 kilowatt steam turbine/induction generator set to use extra steam - produced by 'free' waste wood fuel - in generating 15% of the plant's electrical energy demand. The turbine...

  2. Modelling Traceability in the Forestry Wood Supply Chain

    E-Print Network [OSTI]

    Modelling Traceability in the Forestry Wood Supply Chain Antti Sirkka University of Tampere TietoEnator Forest & Energy Oy Kalevantie 4, 33014 Tampere, Finland Häkiläpolku 3 A, 33101 Tampere, Finland antti

  3. Test evaluation of a laminated wood wind turbine blade concept

    SciTech Connect (OSTI)

    Faddoul, J.R.

    1981-05-01

    Because of the high stiffness and fatigue strength of wood (as compared to density) along with the low cost manufacturing techniques available, a laminated wood wind turbine blade application has been studied. This report presents the results of the testing performed on elements of the wood blade-to-hub transition section which uses steel studs cast into a laminated wood spar with a filled epoxy. Individual stud samples were tested for both ultimate load carrying capability and fatigue strength. A one-time pull-out load of 78,000 lb was achieved for a 15 in. long stud with a diameter of 1 in. Tension-tension fatigue indicated that peak loads on the order of 40% of ultimate could be maintained as an endurance limit (mean load = 20,000 lb, cyclic load = +-15,000 lb). Following the individual stud testing, a full-scale inboard blade section (20 ft in length) was tested.

  4. Trends and Market Effects of Wood Energy Policies

    E-Print Network [OSTI]

    ! · Powerful energy industry · Future? · Today´s discussion! #12;Trends and Market Effects of Wood Energy Policies Bengt Hillring SLU SWEDEN http is the main international energy source · Climate change ­ Energy production ­ CO2 · European Union different

  5. Photo by Helvetas Moambique Architecture, Wood and Civil Engineering

    E-Print Network [OSTI]

    Wehrli, Bernhard

    Photo by Helvetas Moçambique Architecture, Wood and Civil Engineering #12;IWRM in order to maximize the resultant economic and social welfare in an equitable manner without CAS consists of the following units: - Basic knowledge in order to follow the class

  6. Disentangling Biodiversity and Climatic Determinants of Wood Production

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    an important role in carbon sequestration. Methodology/Principal Findings: We tested whether tree wood incorporating the role of biodiversity in management and policy plans for forest carbon sequestration. Citation

  7. Terahertz birefringence and attenuation properties of wood and paper

    E-Print Network [OSTI]

    Reid, Matthew

    - plications in the wood industry for pulsed terahertz radiation.5,6 This is so primarily because pulsed tera is split into pump and probe beams. The pump is lightly focused on the pho- toconductive switch

  8. Stephen E. Wood Department of Earth & Space Sciences

    E-Print Network [OSTI]

    Winglee, Robert M.

    .S. Physics, University of North Carolina, Chapel Hill PROFESSIONAL POSITIONS for Phase A study; designed solar-powered thermal ice drill RESEARCH GRANTS-I's: Stephen Wood, Collab: Eric R. Parteli (FAU, Germany), Wind regime, sediment

  9. Making Steel Framing as Thermally Efficient as Wood 

    E-Print Network [OSTI]

    Kosny, J.; Childs, P.

    2002-01-01

    In many world regions like North America and Scandinavia wood framing is dominant technology for residential buildings. During last two decades several companies around the world started to promote a low-gage steel framing for residential...

  10. Home Page > Business > Industrial > Global Trade Of Wood Chips Down 26% In 2009 As Pulpmills Reduce Production Worldwide, Reports Wood Resources International

    E-Print Network [OSTI]

    Check Correct All Grammar Errors And Enhance Your Writing. Try Now! www.Grammarly.com Free TradingHome Page > Business > Industrial > Global Trade Of Wood Chips Down 26% In 2009 As Pulpmills Reduce Production Worldwide, Reports Wood Resources International Global Trade Of Wood Chips Down 26% In 2009

  11. Rotating Hairy Black Holes

    E-Print Network [OSTI]

    B. Kleihaus; J. Kunz

    2000-12-20

    We construct stationary black holes in SU(2) Einstein-Yang-Mills theory, which carry angular momentum and electric charge. Possessing non-trivial non-abelian magnetic fields outside their regular event horizon, they represent non-perturbative rotating hairy black holes.

  12. "Hybrid" Black Holes

    E-Print Network [OSTI]

    Valeri P. Frolov; Andrei V. Frolov

    2014-12-30

    We discuss a solution of the Einstein equations, obtained by gluing the external Kerr metric and the internal Weyl metric, describing an axisymmetric static vacuum distorted black hole. These metrics are glued at the null surfaces representing their horizons. For this purpose we use the formalism of massive thin null shells. The corresponding solution is called a "hybrid" black hole. The massive null shell has an angular momentum which is the origin of the rotation of the external Kerr spacetime. At the same time, the shell distorts the geometry inside the horizon. The inner geometry of the "hybrid" black hole coincides with the geometry of the interior of a non-rotating Weyl-distorted black hole. Properties of the "hybrid" black holes are briefly discussed.

  13. Thermodynamics of rotating black holes in conformal gravity

    E-Print Network [OSTI]

    Kamvar, Negin; Soroushfar, Saheb

    2015-01-01

    In this paper we consider a metric of a rotating black hole in conformal gravity. We calculate the thermodynamical quantities for this rotating black hole including Hawking temperature and entropy in four dimensional space-time, as we obtain the effective value of Komar angular momentum. The result is valid on the event horizon of the black hole, and at any radial distance out of it. Also we verify that the first law of thermodynamics will be held for this type of black hole.

  14. Recovery Boiler Modeling: An Improved Char Burning Model Including Sulfate Reduction and Carbon Removal 

    E-Print Network [OSTI]

    Grace, T. M.; Wag, K. J.; Horton, R. R.; Frederick, W. J.

    1994-01-01

    This paper describes an improved model of char burning during black liquor combustion that is capable of predicting net rates of sulfate reduction to sulfide as well as carbon burnup rates. Enhancements include a proper ...

  15. Ionic liquid pretreatment of poplar wood at room temperature: swelling and incorporation of nanoparticles

    SciTech Connect (OSTI)

    Lucas, Marcel [Los Alamos National Laboratory; Macdonald, Brian A [Los Alamos National Laboratory; Wagner, Gregory L [Los Alamos National Laboratory; Joyce, Steven A [Los Alamos National Laboratory; Rector, Kirk D [Los Alamos National Laboratory

    2010-01-01

    Lignocellulosic biomass represents a potentially sustainable source of liquid fuels and commodity chemicals. It could satisfy the energy needs for transportation and electricity generation, while contributing substantially to carbon sequestration and limiting the accumulation of greenhouse gases in the atmosphere. Potential feedstocks are abundant and include crops, agricultural wastes, forest products, grasses, and algae. Among those feedstocks, wood is mainly constituted of three components: cellulose, hemicellulose, and lignin. The conversion process of lignocellulosic biomass typically consists of three steps: (1) pretreatment; (2) hydrolysis of cellulose and hemicellulose into fermentable sugars; and (3) fermentation of the sugars into liquid fuels (ethanol) and other commodity chemicals. The pretreatment step is necessary due to the complex structure of the plant cell wall and the chemical resistance of lignin. Most current pretreatments are energy-intensive and/or polluting. So it is imperative to develop new pretreatments that are economically viable and environmentally friendly. Recently, ionic liquids have attracted considerable interest, due to their ability to dissolve biopolymers, such as cellulose, lignin, native switchgrass, and others. Ionic liquids are also considered green solvents, since they have been successfully recycled at high yields for further use with limited efficiency loss. Also, a few microbial cellulases remain active at high ionic liquid concentration. However, all studies on the dissolution of wood in ionic liquids have been conducted so far at high temperatures, typically above 90 C. Development of alternative pretreatments at room temperature is desirable to eliminate the additional energy cost. In this study, thin sections of poplar wood were swollen at room temperature by a 3 h ionic liquid (1-ethyl-3-methylimidazolium acetate or EMIMAc) pretreatment. The pretreated sample was then exposed to an aqueous suspension of nanoparticles that resulted in the sample contraction and the deposition of nanoparticles onto the surface and embedded into the cell wall. To date, both silver and gold particles ranging in size from 40-100 nm have been incorporated into wood. Penetration of gold nanoparticles of 100 nm diameter in the cell walls was best confirmed by near-infrared confocal Raman microscopy, since the deposition of gold nanoparticles induces a significant enhancement of the Raman signal from the wood in their close proximity, an enhancement attributed to the surface-enhanced Raman effect (SERS). After rinsing with water, scanning electron microscopy (SEM) and Raman images of the same areas show that most nanoparticles remained on the pretreated sample. Raman images at different depths reveal that a significant number of nanoparticles were incorporated into the wood sample, at depths up to 4 {micro}m, or 40 times the diameter of the nanoparticles. Control experiments on an untreated wood sample resulted in the deposition of nanoparticles only at the surface and most nanoparticles were removed upon rinsing. This particle incorporation process enables the development of new pretreatments, since the nanoparticles have a high surface-to-volume ratio and could be chemically functionalized. Other potential applications for the incorporated nanoparticles include isotope tracing, catalysis, imaging agents, drug-delivery systems, energy-storage devices, and chemical sensors.

  16. The O{sub 2}-enriched air gasification of coal, plastics and wood in a fluidized bed reactor

    SciTech Connect (OSTI)

    Mastellone, Maria Laura, E-mail: mlaura.mastellone@unina2.it [Department of Environmental Sciences-Second University of Naples, Via Vivaldi, 43 81100 Caserta (Italy); Zaccariello, Lucio; Santoro, Donato; Arena, Umberto [Department of Environmental Sciences-Second University of Naples, Via Vivaldi, 43 81100 Caserta (Italy)

    2012-04-15

    Highlights: Black-Right-Pointing-Pointer The effect of the O{sub 2} in the gasification stream of a BFB gasifier has been studied. Black-Right-Pointing-Pointer Main advantage of the O{sub 2}-enriched air is the increasing of the bed temperature. Black-Right-Pointing-Pointer No remarkable effects on tar reduction. Decreasing of recognized PAHs. Black-Right-Pointing-Pointer Gasification reactions completed inside the dense bed and splashing zone. Black-Right-Pointing-Pointer Polycondensation reactions occur mainly in the freeboard region. - Abstract: The effect of oxygen-enriched air during fluidized bed co-gasification of a mixture of coal, plastics and wood has been investigated. The main components of the obtained syngas were measured by means of on-line analyzers and a gas chromatograph while those of the condensate phase were off-line analysed by means of a gas chromatography-mass spectrometer (GC-MS). The characterization of condensate phase as well as that of the water used as scrubbing medium completed the performed diagnostics. The experimental results were further elaborated in order to provide material and substances flow analyses inside the plant boundaries. These analyses allowed to obtain the main substance distribution between solid, gaseous and condensate phases and to estimate the conversion efficiency of carbon and hydrogen but also to easily visualise the waste streams produced by the process. The process performance was then evaluated on the basis of parameters related to the conversion efficiency of fuels into valuable products (i.e. by considering tar and particulate as process losses) as well as those related to the energy recovery.

  17. PURDUE UNIVERSITY BLACK CULTURAL CENTER

    E-Print Network [OSTI]

    Pittendrigh, Barry

    traveled to Detroit, Michigan to study our fall research theme, " Black Detroit: The History, Movement

  18. Black Holes and Galaxy Evolution

    E-Print Network [OSTI]

    David Merritt

    1999-10-29

    Supermassive binary black holes and their influence on the structure and evolution of galaxies is reviewed.

  19. Accretion onto the First Stellar Mass Black Holes

    E-Print Network [OSTI]

    Marcelo A. Alvarez; John H. Wise; Tom Abel

    2008-11-07

    The first stars in the universe, forming at redshifts z>15 in minihalos with masses of order 10^6 Msun, may leave behind black holes as their remnants. These objects could conceivably serve as "seeds" for much larger black holes observed at redshifts z~6. We study the growth of the remnant black holes through accretion including for the first time the emitted accretion radiation with adaptive mesh refinement cosmological radiation-hydrodynamical simulations. The effects of photo-ionization and heating dramatically affect the accretion flow from large scales, resulting in negligible mass growth of the black hole. We compare cases with the accretion luminosity included and neglected to show that the accretion radiation drastically changes the environment within 100 pc of the black hole, where gas temperatures are increased by an order of magnitude. The gas densities are reduced and further star formation in the same minihalo prevented for the two hundred million years of evolution we followed. These calculations show that even without the radiative feedback included most seed black holes do not gain mass as efficiently as has been hoped for in previous theories, implying that black hole remnants of Pop III stars that formed in minihalos are not likely to be the origin of miniquasars. Most importantly, however, these calculations demonstrate that if early stellar mass black holes are indeed accreting close to the Bondi-Hoyle rate with ten percent efficiency they have a dramatic local effect in regulating star formation in the first galaxies.

  20. Linda Sargent Wood. A More Perfect Union: Holistic Worldviews and the Transformation of American Culture after World War II.

    E-Print Network [OSTI]

    Promnitz, Sarah

    2012-01-01

    23 No. 1 Linda Sargent Wood. A More Perfect Union: HolisticCold War era, Linda Sargent Wood argues that the equallyWorld War II period. For Wood, this cultural perspective

  1. Understanding wood-pool dynamics using long-term monitoring data from the Gualala River Watershed: What can we learn?

    E-Print Network [OSTI]

    Church, Tamara

    2012-01-01

    and D. R. Montgomery. 2003. Wood in river rehabilitation andPatterns and process of wood debris accumulation in theand S. V. Gregory. 2002. Large wood and fluvial processes.

  2. Drought effects on litterfall, wood production and belowground carbon cycling in an Amazon forest: Results of a throughfall reduction experiment

    E-Print Network [OSTI]

    2008-01-01

    effects on litterfall, wood production and belowground136, 68005-080 Santare´m, Para´, Brazil Woods Hole ResearchCenter, 149 Woods Hole Road, Falmouth, MA 02543, USA

  3. Polar Shear Lag Analysis of a Composite of Concentric Cylinders with Longitudinal Cracks: Application to Internal Checking in Wood

    E-Print Network [OSTI]

    Nairn, John A.

    : Application to Internal Checking in Wood J.A.Nairn Wood Science and Engineering, Oregon State University the existence of internal checks lowers the value of the wood when it is milled into lumber (due to detrimental

  4. Measurement of wood/plant cell or composite material attributes with computer assisted tomography

    DOE Patents [OSTI]

    West, Darrell C.; Paulus, Michael J.; Tuskan, Gerald A.; Wimmer, Rupert

    2004-06-08

    A method for obtaining wood-cell attributes from cellulose containing samples includes the steps of radiating a cellulose containing sample with a beam of radiation. Radiation attenuation information is collected from radiation which passes through the sample. The source is rotated relative to the sample and the radiation and collecting steps repeated. A projected image of the sample is formed from the collected radiation attenuation information, the projected image including resolvable features of the cellulose containing sample. Cell wall thickness, cell diameter (length) and cell vacoule diameter can be determined. A system for obtaining physical measures from cellulose containing samples includes a radiation source, a radiation detector, and structure for rotating the source relative to said sample. The system forms an image of the sample from the radiation attenuation information, the image including resolvable features of the sample.

  5. Comminution process to produce precision wood particles of uniform size and shape with disrupted grain structure from wood chips

    DOE Patents [OSTI]

    Dooley, James H; Lanning, David N

    2013-08-13

    A process of comminution of wood chips (C) having a grain direction to produce a mixture of wood particles (P), wherein the wood chips are characterized by an average length dimension (L.sub.C) as measured substantially parallel to the grain, an average width dimension (W.sub.C) as measured normal to L.sub.C and aligned cross grain, and an average height dimension (H.sub.C) as measured normal to W.sub.C and L.sub.C, and wherein the comminution process comprises the step of feeding the wood chips in a direction of travel substantially randomly to the grain direction through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of wood chip travel, wherein the cutting discs have a uniform thickness (T.sub.D), and wherein at least one of L.sub.C, W.sub.C, and H.sub.C is greater than T.sub.D.

  6. Countries Gasoline Prices Including Taxes

    Gasoline and Diesel Fuel Update (EIA)

    Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids. Natural Gas Exploration and reserves, storage, imports and...

  7. Selected tools Table 9. Summary list of tools for both wood and paper-based products

    E-Print Network [OSTI]

    3.4 Selected tools Table 9. Summary list of tools for both wood and paper-based products Focus Europe WOOD & PAPER- BASED PRODUCTS #12;3.5 Selected tools Forest conversion Social issues Pollution

  8. The morphological development of a wood burl shader 

    E-Print Network [OSTI]

    Moyer, Robert Simms

    2004-09-30

    THE MORPHOLOGICAL DEVELOPMENT OF A WOOD BURL SHADER A Thesis by ROBERT SIMMS MOYER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 2003 Major Subject...: Visualization Sciences THE MORPHOLOGICAL DEVELOPMENT OF A WOOD BURL SHADER A Thesis by ROBERT SIMMS MOYER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved...

  9. Wood residuals find big uses in small pieces

    SciTech Connect (OSTI)

    Glenn, J.

    1996-12-01

    With a history of finding economic uses for leftovers, the wood industry explores sustainable options for creating higher value products. Years ago, companies saw the use - any use - of residues as a sound, economic business practice. Today, many companies are looking to go beyond low value products such as mulch, animal bedding and fuel, and market to higher value end users. Additionally, with so much material from the primary industries already accounted for, consumers of wood residue are in need of additional supply from sources such as secondary mills (furniture manufacturers, etc.), as wells as the C&D and MSW streams. This paper discusses these products and markets.

  10. Wood County, Ohio: 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 on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to: navigation,Wood County Electric Coop, Inc Jump to:Wood

  11. CHARYBDIS: A Black Hole Event Generator

    E-Print Network [OSTI]

    C. M. Harris; P. Richardson; B. R. Webber

    2003-07-29

    CHARYBDIS is an event generator which simulates the production and decay of miniature black holes at hadronic colliders as might be possible in certain extra dimension models. It interfaces via the Les Houches accord to general purpose Monte Carlo programs like HERWIG and PYTHIA which then perform the parton evolution and hadronization. The event generator includes the extra-dimensional `grey-body' effects as well as the change in the temperature of the black hole as the decay progresses. Various options for modelling the Planck-scale terminal decay are provided.

  12. The Role of Allelopathy, Heat, and Charred Wood in the Germination of Chaparral Herbs1

    E-Print Network [OSTI]

    on the effect of heating, at temperatures similar to those found in fire, and tests with wood ash alone failed

  13. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into 30% Recycled Wood Fiber Paper and Sugar Cane Paper

    E-Print Network [OSTI]

    sugar cane paper on a local and national scale.The raw materials used to make both the wood fibre paper based on raw materials, labour, pulp and bleach used for making the papers including an investigation&T) with paper made of sugar cane. The product of the TreeZero Company, the TreeFrog paper is manufactured

  14. Black Hole Thermodynamics in Modified Gravity

    E-Print Network [OSTI]

    Jonas R. Mureika; John W. Moffat; Mir Faizal

    2015-03-03

    We analyze the thermodynamics of a non-rotating and rotating black hole in a modified theory of gravity that includes scalar and vector modifications to general relativity, which results in a modified gravitational constant $G = G_N(1+\\alpha)$ and a new gravitational charge $Q = \\sqrt{\\alpha G_N}M$. The influence of the parameter $\\alpha$ alters the non-rotating black hole's lifetime, temperature and entropy profiles from the standard Schwarzschild case. The thermodynamics of a rotating black hole is analyzed and it is shown to possess stable, cold remnants. The thermodynamic properties of a vacuum solution regular at $r=0$ are investigated and the solution without a horizon called a "gray hole" is not expected to possess an information loss problem.

  15. Moisture-Safe Unvented Wood Roof Systems

    SciTech Connect (OSTI)

    John Straube

    2010-04-20

    This paper describes a hygrothermal modeling study, including all of the US climate zones, a range of interior humidity levels and numerous arrangements and types of insulation.

  16. Management of Discarded Treated Wood Products: A Resource Guide for Generators

    E-Print Network [OSTI]

    Florida, University of

    /environmental concerns c. Special handling 4. Management options for treated wood a. Is treated wood a solid waste? b for homeowners, contractors, waste management professionals, and other parties needing information on managementManagement of Discarded Treated Wood Products: A Resource Guide for Generators Prepared by

  17. Matrix penetration in the bulk:In uence of humidity: Morphological analysis of wood welding

    E-Print Network [OSTI]

    Psaltis, Demetri

    Matrix penetration in the bulk:In uence of humidity: Morphological analysis of wood welding.pichelin@b .ch Context: Wood can be welded using linear vibration welding tech- niques similar to the ones in plastic and metal industry[1] . Wood welding allows bonding strength similar to glued joints. However, due

  18. Dynamics of wood in stream networks of the western Cascades Range, Oregon

    E-Print Network [OSTI]

    Kurapov, Alexander

    Dynamics of wood in stream networks of the western Cascades Range, Oregon Nicole M. Czarnomski a conceptual model of wood dynamics in stream networks that considers legacies of forest management practices, floods, and debris flows. We combine an observational study of wood in 25 km of 2nd- through 5th

  19. A Method Countries Can Use to Estimate Changes in Carbon Stored in Harvested Wood Products and

    E-Print Network [OSTI]

    A Method Countries Can Use to Estimate Changes in Carbon Stored in Harvested Wood Products to carbon stored in harvested wood products (HWP) and for evaluating uncertainty. The method uses data suggest that uncertainty is most sensitive to uncertainty in production data for solid- wood products

  20. Global relationship of wood and leaf litter decomposability: the role of

    E-Print Network [OSTI]

    Thomas, David D.

    META ANALYSIS Global relationship of wood and leaf litter decomposability: the role of functional and their phylogenetic history influence decay rates of dead wood and leaf litter, but it remains unknown if decay rates of wood and litter covary over a wide range of tree species and across ecosystems. We evaluated

  1. The relationship between wood density and mortality in a global tropical forest data set

    E-Print Network [OSTI]

    Kraft, Nathan

    The relationship between wood density and mortality in a global tropical forest data set Nathan J-offs, long-term ecological research, phylogenetic independent contrasts, trait conservatism. Summary · Wood in mortality rates with wood density, drawing on data for 765 500 trees from 1639 species at 10 sites located

  2. Current Research on Wood Decay in the USDA Forest Service1 Harold H. Burdsall, Jr.2

    E-Print Network [OSTI]

    Current Research on Wood Decay in the USDA Forest Service1 Harold H. Burdsall, Jr.2 Abstract, Biodeterioration Research, concentrates on studying the basic mechanism of wood decay. Most of the Forest Service's work on wood decay is being done in two work units in Forest Insect and Disease Research (FIDR) housed

  3. Fish use of turbulence around wood in winter: physical experiments on hydraulic variability and habitat selection

    E-Print Network [OSTI]

    Tullos, Desiree

    Fish use of turbulence around wood in winter: physical experiments on hydraulic variability-introduction of large wood for expanding hydraulic variability is an increasingly common prac- tice, yet it is not yet on flow strength, depth, distance to wood, or based on temporal or spatial variability of the flow field

  4. Lauric Acid/Wood Fiber Blends for Shape Stable Phase Change Material

    E-Print Network [OSTI]

    Collins, Gary S.

    Lauric Acid/Wood Fiber Blends for Shape Stable Phase Change Material Krista Stancombe, Fang Chen in preparing wood fiber (WF) composites. The goal in developing this material is to produce a shape stabilized (DSC) and polarized optical microscopy (POM). References Conclusion LA crystals LA crystals Wood Fiber

  5. World Wide Wood Network, Ltd. 2001-2002 Forest Products e-Commerce

    E-Print Network [OSTI]

    World Wide Wood Network, Ltd. © 2001-2002 Forest Products e-Commerce An Oxymoron or Wave of the Future Presented by: Thomas J. Westbrook, JD President & CEO World Wide Wood Network, Ltd. http Collapsing time and space Communication World Wide Wood Network, Ltd. © 2001-2002 The Promise of the Internet

  6. Pristine Early Eocene Wood Buried Deeply in Kimberlite from Northern Canada

    E-Print Network [OSTI]

    Wolfe, Alexander P.

    Pristine Early Eocene Wood Buried Deeply in Kimberlite from Northern Canada Alexander P. Wolfe1 preservation of fossil wood buried deeply in a kimberlite pipe that intruded northwestern Canada's Slave Province 53.360.6 million years ago (Ma), revealed during excavation of diamond source rock. The wood

  7. Nanoindentation of wood cell walls: Continuous stiffness and hardness measurements q

    E-Print Network [OSTI]

    Wang, Siqun

    Nanoindentation of wood cell walls: Continuous stiffness and hardness measurements q W.T.Y. Tze a 37831-6116, USA d Department of Wood and Paper Science, North Carolina State University, Raleigh, NC The objective of this study was to measure the mechanical properties of individual, native wood fibers using

  8. AN ASSESSMENT OF WOOD DUCK DISTRIBUTION, ABUNDANCE AND RIPARIAN BREEDING PAIR HABITATS IN SOUTH DAKOTA

    E-Print Network [OSTI]

    AN ASSESSMENT OF WOOD DUCK DISTRIBUTION, ABUNDANCE AND RIPARIAN BREEDING PAIR HABITATS IN SOUTH #12;AN ASSESSMENT OF WOOD DUCK DISTRIBUTION, ABUNDANCE AND RIPARIAN BREEDING PAIR HABITATS IN SOUTH Wildlife and Fisheries Sciences #12;AN ASSESSMENT OF WOOD DUCK DISTRIBUTION, ABUNDANCE AND RIPARIAN

  9. WOOD-BORERS ON Acacia: A COMMUNITY PERSPECTIVE Prepared by Drs. Brett Hurley and Jeff Garnas

    E-Print Network [OSTI]

    WOOD-BORERS ON Acacia: A COMMUNITY PERSPECTIVE Prepared by Drs. Brett Hurley and Jeff Garnas Acacia community diversity and composition. Wood-boring insects in particular can cause considerable damage. In an effort to better understand the wood-boring community on Acacia, Drs Brett Hurley and Jeff Garnas (from

  10. Wood Transportation Systems-A Spin-Off of a Computerized Information

    E-Print Network [OSTI]

    Wood Transportation Systems-A Spin-Off of a Computerized Information and Mapping Technique William of the system to determine the allocation and association of wood sources and markets. INTRODUCTION In December strategies of wood origins and potential markets to be correlated very accurately and rapidly. Transportation

  11. On The Ten Point Wood-Desargues' Configuration Christopher J Bradley and Geoff C Smith

    E-Print Network [OSTI]

    Smith, Geoff

    1 Article 6 On The Ten Point Wood-Desargues' Configuration Christopher J Bradley and Geoff C Smith Abstract The ten pairs of directly similar triangles in perspective in the Wood-Desargues' configuration are similar to the five cyclic quadrangles of the initial Wood-Desargues' configuration and that these five

  12. EFFECTS OF RESIN AND WAX ON THE WATER UPTAKE BEHAVIOR OF WOOD STRANDS

    E-Print Network [OSTI]

    Wang, Siqun

    EFFECTS OF RESIN AND WAX ON THE WATER UPTAKE BEHAVIOR OF WOOD STRANDS Yang2hang1 Post February 2005) ABSTRACT Dimensional stability is an important property of wood composites. Both resin and wax are essential additives in the manufactureof composite panels such as OSB. Resin binds wood

  13. OPPORTUNITIES FOR HORIZONTAL DIVERSIFICATION IN MANUFACTURING VALUE-ADDED WOOD PRODUCTS

    E-Print Network [OSTI]

    Wu, Qinglin

    OPPORTUNITIES FOR HORIZONTAL DIVERSIFICATION IN MANUFACTURING VALUE-ADDED WOOD PRODUCTS Working Post Doctoral Researcher Wood Products Processing Richard Vlosky Assistant Professor Forest Products Marketing February 7, 1996 #12;2 ABSTRACT A study of equipment usage in the Louisiana secondary wood

  14. EFFECT OF COMPOSITE REINFORCEMENT ON THE DURABILITY OF WOOD BASEBALL BATS

    E-Print Network [OSTI]

    Smith, Lloyd V.

    EFFECT OF COMPOSITE REINFORCEMENT ON THE DURABILITY OF WOOD BASEBALL BATS John T. Axtell, Lloyd V Pullman, WA 99164-2920 ABSTRACT This study examines the durability of a laminated wood baseball bat. The measured and predicted results are in good agreement. Wood lamination was observed to decrease the scatter

  15. Patterns and processes of wood debris accumulation in the Queets river basin, Washington

    E-Print Network [OSTI]

    Montgomery, David R.

    Patterns and processes of wood debris accumulation in the Queets river basin, Washington Tim B Mountains in NW Washington reveal basin-wide patterns of distinctive wood debris (WD) accumulations development. The classification of wood debris accumulations in the Queets river basin is based on physical

  16. Wood anatomical analysis of Alnus incana and Betula pendula injured by a debris-flow event

    E-Print Network [OSTI]

    Butler, David R. - Department of Geography, Texas State University

    Wood anatomical analysis of Alnus incana and Betula pendula injured by a debris-flow event ESTELLE. More- over, time series of wood anatomical features have only rarely been used to reconstruct former geomorphic events. This study was therefore undertaken to characterize the wood anatomical response

  17. Use of handheld X-ray fluorescence spectrometry units for identification of arsenic in treated wood

    E-Print Network [OSTI]

    Florida, University of

    Use of handheld X-ray fluorescence spectrometry units for identification of arsenic in treated wood within preservative-treated wood. Abstract The objective of this study was to evaluate the performance of handheld XRF analyzers on wood that has been treated with a preservative containing arsenic. Experiments

  18. Society of Wood Science and Technology Convention 10-12 November 2008, Concepcin, Chile

    E-Print Network [OSTI]

    Society of Wood Science and Technology Convention 10-12 November 2008, Concepción, Chile Global Trade of Wood and Paper Products By Ed Pepke Forest Products Marketing Specialist UNECE/FAO Timber #12;Society of Wood Science and Technology Convention 10-12 November 2008, Concepción, Chile Subjects

  19. Effects of compost and phosphate on plant arsenic accumulation from soils near pressure-treated wood

    E-Print Network [OSTI]

    Ma, Lena

    -treated wood Xinde Cao*, Lena Q. Ma Soil and Water Science Department, University of Florida, Gainesville, FL)-treated wood may elevate soil arsenic levels. Thus, an environmental concern arises regarding accumulation. Our results indicate that growing vegetables in soils near CCA-treated wood may pose a risk

  20. International Conference on Wood-based Bioenergy LIGNA+Hannover, Germany, 17-18 May 2007

    E-Print Network [OSTI]

    1985 1990 1995 2000 2005 2010 2015 2020 Year Amount(inmillioncubicmetresWRME) Recovered paper Net pulp fossil fuel prices · Energy security · Policies to reduce climate change · Wood industries' wood needs consumption, e.g. China ­ Nuclear safety #12;International Conference on Wood-based Bioenergy LIGNA

  1. Illegal loggin and wood energy: UNECE Timber Committee discusses policy issues of the day SEARCH SITEMAP

    E-Print Network [OSTI]

    of the production and use of wood energy, in the context of broader policy frameworks, for renewable energiesIllegal loggin and wood energy: UNECE Timber Committee discusses policy issues of the day SEARCH SITEMAP PRESS RELEASE [Index] Illegal logging and wood energy: UNECE Timber Committee discusses policy

  2. Modeling Sediment and Wood Storage and Dynamics in Small Mountainous Watersheds

    E-Print Network [OSTI]

    85 Modeling Sediment and Wood Storage and Dynamics in Small Mountainous Watersheds Stephen T controls on supply and transport of sediment and wood in a small (approximately two square kilometers) basin in the Oregon Coast Range, typical of streams at the interface between episodic sediment and wood

  3. Wood stove use in the end-use load and consumer assessment program residential base sample

    SciTech Connect (OSTI)

    LeBaron, B.A.

    1988-11-01

    This report examines wood heating in the End-Use Load and Consumer Assessment Program (ELCAP) Residential Base Sample during the 1985/1986 heating season. The goals of this study were to assess the frequency of wood burning in homes having wood burning equipment and to estimate the quantity of electrical space heat displaced by it use. 15 refs., 18 figs., 6 tabs.

  4. Attention design: Eight issues to consider Sharon Wood *, Richard Cox, Peter Cheng

    E-Print Network [OSTI]

    Cheng, Peter

    Attention design: Eight issues to consider Sharon Wood *, Richard Cox, Peter Cheng Representation.12.007 * Corresponding author. E-mail address: S.Wood@sussex.ac.uk (S. Wood). Computers in Human Behavior 22 (2006) 588 an incremental extension of existing technologies. From stud- ies of other design oriented disciplines

  5. Field Document No.50 REGIONAL WOOD ENERGY DEVELOPMENT PROGRAMME IN ASIA

    E-Print Network [OSTI]

    wood energy data, leading to best estimates of future consumption. It also tries to estimate. The work continues, particularly in much- needed efforts to strengthen the available wood energy data-use Conversion 22 3.7 Quotes 23 4. Selected Wood Energy Data 27 4.1 Energy Balances in RWEDP Member-countries 27

  6. Final Independent External Peer Review Report Melvin Price Wood River Underseepage

    E-Print Network [OSTI]

    US Army Corps of Engineers

    EXECUTIVE SUMMARY Project Background and Purpose The purpose of the Melvin Price Wood River Underseepage Price Wood River LRR and the overall scope of the project, the final panel members were selectedFinal Independent External Peer Review Report Melvin Price Wood River Underseepage Limited

  7. Neutralino relic density including coannihilations

    E-Print Network [OSTI]

    Paolo Gondolo; Joakim Edsjo

    1997-11-25

    We give an overview of our precise calculation of the relic density of the lightest neutralino, in which we included relativistic Boltzmann averaging, subthreshold and resonant annihilations, and coannihilation processes with charginos and neutralinos.

  8. The Environmental Impact of Supermassive Black Holes

    E-Print Network [OSTI]

    Abraham Loeb

    2004-08-10

    The supermassive black holes observed at the centers of almost all present-day galaxies, had a profound impact on their environment. I highlight the principle of self-regulation, by which supermassive black holes grow until they release sufficient energy to unbind the gas that feeds them from their host galaxy. This principle explains several observed facts, including the correlation between the mass of a central black hole and the depth of the gravitational potential well of its host galaxy, and the abundance and clustering properties of bright quasars in the redshift interval of z~2-6. At lower redshifts, quasars might have limited the maximum mass of galaxies through the suppression of cooling flows in X-ray clusters. The seeds of supermassive black holes were likely planted in dwarf galaxies at redshifts z>10, through the collapse of massive or supermassive stars. The minimum seed mass can be identified observationally through the detection of gravitational waves from black hole binaries by Advanced LIGO or LISA. Aside from shaping their host galaxies, quasar outflows filled the intergalactic medium with magnetic fields and heavy elements. Beyond the reach of these outflows, the brightest quasars at z>6 have ionized exceedingly large volumes of gas (tens of comoving Mpc) prior to global reionization, and must have suppressed the faint end of the galaxy luminosity function in these volumes before the same occurred through the rest of the universe.

  9. Landfill Disposal of CCA-Treated Wood with Construction and

    E-Print Network [OSTI]

    Florida, University of

    those found in municipal solid waste (MSW) (e.g., food waste). However, research has shown that C liners (11). When CCA-treated wood is managed in the C&D debris waste stream and is disposed in unlined C&D debris can impact leachate quality which, in turn could affect leachate management practices or aquifers

  10. Fire Safety Challenges of Tall Wood Final Report

    E-Print Network [OSTI]

    Fire Safety Challenges of Tall Wood Buildings Final Report Prepared by: Robert Gerard and David Barber Arup North America Ltd San Francisco, CA Armin Wolski San Francisco, CA © December 2013 Fire Protection Research Foundation THE FIRE PROTECTION RESEARCH FOUNDATION ONE BATTERYMARCH PARK QUINCY

  11. Practical Approach to Designing Wood Roof Truss Assemblies

    E-Print Network [OSTI]

    Gupta, Rakesh

    Practical Approach to Designing Wood Roof Truss Assemblies Rakesh Gupta, M.ASCE1 ; and Pranueng to evaluate "system effects" in light-frame roof truss assemblies. The goal of this study was to develop an improved and practical design method for 3D roof truss assemblies used in residential construction. A truss

  12. Performance of bolted wood connections using supplemental confining devices 

    E-Print Network [OSTI]

    Stromatt, Rebecca Faye

    1996-01-01

    In the aftermath of the 1994 Northridge Earthquake, extensive field investigations revealed damage in wood frame construction in the form of splitting the 2x4 or 2x6 dimension lumber sill plates along the line of anchor bolts which typically connect...

  13. Production of chemical feedstock by the methanolysis of wood

    DOE Patents [OSTI]

    Steinberg, Meyer (Melville, NY); Fallon, Peter (East Moriches, NY)

    1984-07-31

    A process for the production of ethylene, benzene and carbon monoxide from particulated biomass such as wood by reaction with methane at a temperature of from 700.degree. C. to 1200.degree. C., at a pressure of from 20 psi to 100 psi for a period of from 0.2 to 10 seconds.

  14. Production of chemical feedstock by the methanolysis of wood

    DOE Patents [OSTI]

    Steinberg, M.; Fallon, P.

    1983-06-01

    A process is discussed for the production of ethylene, benzene and carbon monoxide from particulated biomass such as wood by reaction with methane at a temperature of from 700/sup 0/C to 1200/sup 0/C, at a pressure of from 20 psi to 100 psi for a period of from 0.2 to 10 seconds.

  15. MIGHTY BACTERIA IN A CIVILISED WORLD Prepared by Amy Wooding

    E-Print Network [OSTI]

    MIGHTY BACTERIA IN A CIVILISED WORLD Prepared by Amy Wooding The 2013 FABI/ CTHB UPwith of antibacterial products being advertised. The aim was to explore the idea created by these products that bacteria this by testing whether all bacteria can survive in every environment; will bacteria isolated from the UP

  16. TECHNICAL POLLUTION PREVENTION GUIDE FOR PRESSURE WOOD PRESERVATION FACILITIES

    E-Print Network [OSTI]

    #12;TECHNICAL POLLUTION PREVENTION GUIDE FOR PRESSURE WOOD PRESERVATION FACILITIES IN THE LOWER FRASER BASIN DOE FRAP 1997-14 Prepared for: Environment Canada Environmental Protection Fraser Pollution Action Plan through its Fraser Pollution Abatement Office. Environment Canada is not responsible

  17. Wood Residues as Fuel Source for Lime Kilns 

    E-Print Network [OSTI]

    Azarniouch, M. K.; Philp, R. J.

    1984-01-01

    One of the main obstacles to total energy self sufficiency of kraft mills appears to be the fossil fuel requirements of the lime kilns. If an economical technology can be developed which allows fossil fuel to be replaced in whole or in part by wood...

  18. Drying and burning wood waste using pulse combustion

    SciTech Connect (OSTI)

    Buckkowski, A.G.; Eng, P.; Kitchen, J.A. [Novadyne Ltd., Ontario (Canada)

    1995-11-01

    Development of an industrial dryer using pulse combustion as a heating source for drying wood waste has continued. Pulse combustion offers the advantage of high heat transfer, efficient combustion, low NOx emissions and a source of kinetic energy for providing a motive force for a drying system. In our experiments, the drying system consists of a pulse combustor and a vertical drying column. The wood waste is injected into the exhaust gases from the combustor where the turbulence created by the pulsations enhance the drying process by reducing the boundary layer thicknesses. The material is further dried in the vertical drying column, then separated from the conveying airstream using a cyclone. The paper discusses two aspects of the drying system. Firstly, the performance of the drying tests are reviewed. Tests with the 1,000,000 BTU/hr test rig have shown that a gas-fired pulse combustion dryer can dry materials such as sawdust and pulverized hog fuel from a moisture content of 50% down to a 30% in a single pass, or further with multiple passes, without scorching or burning. Preliminary figures show that the operating costs of the dryer are reduced due to the kinetic energy created by the pulse combustor which offsets the use of electricity. Secondly, it has been shown that a pulse combustor can be fired with wood waste and thereby providing the potential to displace natural gas or propane as a fuel. The development of the wood burning combustor is reviewed.

  19. Physiological Insights Towards Improving Fish Culture L. CURRY WOODS III*

    E-Print Network [OSTI]

    Hamza, Iqbal

    Physiological Insights Towards Improving Fish Culture L. CURRY WOODS III* Department of Animal, and American Fisheries Society (AFS) Fish Culture Section, was held February 26 through March 2, 2007, in San Antonio, Texas. At this meeting, the AFS Fish Culture and Fish Physiol- ogy Sections co

  20. Measure Guideline. Wood Window Repair, Rehabilitation, and Replacement

    SciTech Connect (OSTI)

    Baker, P.; Eng, P.

    2012-12-01

    This measure guideline provides information and guidance on rehabilitating, retrofitting, and replacing existing window assemblies in residential construction. The intent is to provide information regarding means and methods to improve the energy and comfort performance of existing wood window assemblies in a way that takes into consideration component durability, in-service operation, and long term performance of the strategies.

  1. Wood-Coal Fired "Small" Boiler Case Study 

    E-Print Network [OSTI]

    Pincelli, R. D.

    1980-01-01

    Galaxy Carpet Corporation installed a coal and wood waste fired boiler approximately twelve months ago. Its first year net savings were $195,000.00 Total capital investment was paid off in 1.9 years. 20% investment tax credits were granted...

  2. Terahertz birefringence and attenuation properties of wood and paper

    E-Print Network [OSTI]

    Reid, Matthew

    ,4 1 #12;It has been recognized early on that there may be applications to the wood industry for pulsed power from an 80 MHz, 100 fs, Ti:Sapphire oscillator. The optical beam is split into pump and probe beams. The pump is lightly focused on the photoconductive switch, and the emitted terahertz radiation

  3. Taxonomic Lattice Structures for Situation Recognition William A. Woods

    E-Print Network [OSTI]

    Taxonomic Lattice Structures for Situation Recognition William A. Woods Bolt Beranek and Newman Inc there any special thing I should do about it?", etc. To support this kind of activity, a substantial part something. TO support the above uses of knowledge, an important characteristic required of an efficient

  4. RUTGERS ROBERT WOOD JOHNSON MEDICAL SCHOOL NEW BRUNSWICK, NEW JERSEY

    E-Print Network [OSTI]

    Garfunkel, Eric

    from experimental animals infected with HIV or HBV. (Bloodborne pathogens as they relate to the use of animal blood may also be covered by the policies of the University's research animal care facilities for University staff, students, faculty, and house staff. 1. Each RUTGERS Robert Wood Johnson Medical School

  5. Material Properties of Chemically Bonded Phosphate Ceramic/Wood Interfaces

    E-Print Network [OSTI]

    Collins, Gary S.

    Material Properties of Chemically Bonded Phosphate Ceramic/Wood Interfaces M.J. Benjamin, K Chemically bonded phosphate ceramics (CBPCs) are man made inorganic solids that lie in between hydraulic cements and ceramics . Normally, ceramics are sintered at temperatures ranging from 700-2000C

  6. The Wood-Based Biorefinery in a Petroleum Depleted World

    E-Print Network [OSTI]

    Chatterjee, Avik P.

    3 Year Old Willow #12;14 14 Woody Biomass Feedstocks Sustainably harvested low value wood from, Sustainable Bioproducts: Fuels, Chemicals, Materials Renewable Resources to "Green" Bio-Products Woody Biomass Feedstock #12;5 5 Spindletop at Beaumont, TX Circa late 1890's Birth of the Petroleum Industry in Texas

  7. Performance of Wood-Frame Structures during Hurricane Katrina

    E-Print Network [OSTI]

    Gupta, Rakesh

    Performance of Wood-Frame Structures during Hurricane Katrina John W. van de Lindt, M.ASCE1 ; and Kenneth J. Fridley, M.ASCE6 Abstract: The costliest natural disaster in U.S. history was Hurricane Katrina; Hurricanes; Damage; Gulf of Mexico. Introduction The data reconnaissance consisted of 3 days of data

  8. Wood River Drainage and Levee District, Illinois Design Deficiency Study

    E-Print Network [OSTI]

    US Army Corps of Engineers

    to the design criterion of a safety factor of 1.6, as well as a lower factor of safety for the temporary USACE criteria require a minimum factor of safety of 1.6. b. Parametric study to understand#12;1 Wood River Drainage and Levee District, Illinois Design Deficiency Study Limited Reevaluation

  9. Environmental assessment of the atlas bio-energy waste wood fluidized bed gasification power plant. Final report

    SciTech Connect (OSTI)

    Holzman, M.I.

    1995-08-01

    The Atlas Bio-Energy Corporation is proposing to develop and operate a 3 MW power plant in Brooklyn, New York that will produce electricity by gasification of waste wood and combustion of the produced low-Btu gas in a conventional package steam boiler coupled to a steam-electric generator. The objectives of this project were to assist Atlas in addressing the environmental permit requirements for the proposed power plant and to evaluate the environmental and economic impacts of the project compared to more conventional small power plants. The project`s goal was to help promote the commercialization of biomass gasification as an environmentally acceptable and economically attractive alternative to conventional wood combustion. The specific components of this research included: (1) Development of a permitting strategy plan; (2) Characterization of New York City waste wood; (3) Characterization of fluidized bed gasifier/boiler emissions; (4) Performance of an environmental impact analysis; (5) Preparation of an economic evaluation; and (6) Discussion of operational and maintenance concerns. The project is being performed in two phases. Phase I, which is the subject of this report, involves the environmental permitting and environmental/economic assessment of the project. Pending NYSERDA participation, Phase II will include development and implementation of a demonstration program to evaluate the environmental and economic impacts of the full-scale gasification project.

  10. Methanol production from eucalyptus wood chips. Attachment IV. Health and safety aspects of the eucalypt biomass to methanol energy system

    SciTech Connect (OSTI)

    Fishkind, H.H.

    1982-06-01

    The basic eucalyptus-to-methanol energy process is described and possible health and safety risks are identified at all steps of the process. The toxicology and treatment for exposure to these substances are described and mitigating measures are proposed. The health and safety impacts and risks of the wood gasification/methanol synthesis system are compared to those of the coal liquefaction and conversion system. The scope of this report includes the health and safety risks of workers (1) in the laboratory and greenhouse, where eucalyptus seedlings are developed, (2) at the biomass plantation, where these seedlings are planted and mature trees harvested, (3) transporting these logs and chips to the refinery, (4) in the hammermill, where the logs and chips will be reduced to small particles, (5) in the methanol synthesis plant, where the wood particles will be converted to methanol, and (6) transporting and dispensing the methanol. Finally, the health and safety risks of consumers using methanol is discussed.

  11. Provenance study and environments of deposition of the Pennslyvanian-Permian Wood River Formation, south-central Idaho, and the paleotectonic character of the Wood River basin 

    E-Print Network [OSTI]

    Dean, Christopher William

    1982-01-01

    PROVENANCE STUDY AND ENVIRONMENTS OF DEPOSITION OF THE PENNSYLVANIAN-PERMIAN WOOD RIVER FORMATION, SOUTH-CENTRAL IDAHO, AND THE PALEOTECTONIC CHARACTER OF THE WOOD RIVER BASIN A 'Ihesis by CHRISTOPHER WILLIAM DEAN Submitted to the Graduate..., SOUTH-CENTRAL IDAHO, AND THE PALEOTECTONIC CHARACTER OF THE WOOD RIVER BASIN A Thesis by CHRISTOPHER WILLIAM DEAN Approved as to style and content by: (Chairman of Co ittee) (Member) (Member) (H of Dep tment) December, 1982 ABSTRACT Provenance...

  12. Improved stud configurations for attaching laminated wood wind turbine blades

    SciTech Connect (OSTI)

    Faddoul, J.R.

    1985-09-01

    In order to improve joint strength for bonded studs in laminated wood structures (wind turbine blades) a series of designs was developed and tested. Each design systematically varied a parameter which was expected to have a significant effect on performance. The structural capability of each design was established based on tension-tension fatigue tests, and it was found that a stud with a concave tapered carrot design, bonded in place with an epoxy thickened with chopped carbon fiber, was the most effective design. Further improvements in joint performance could be made by augmenting the laminated wood with thin plies of carbon cloth (10 percent thickness buildup) in the area of the stud. Two designs were selected for further testing, which demonstrated that joint strengths approaching the membrane wood strength could be achieved. For a 3- by 3-inch wood block, an ultimate load exceeding 100,000 lbs could be introduced through a single bonded stud. For the same type of specimen in cyclic tension at an R-ratio of 0.1, the bonded studs were projected to have a fatigue life of 4 x 10/sup 8/ cycles at maximum loads of 30,000 lbs. For reversed axial fatigue, a reduction of 25 percent from these numbers was shown to be appropriate. These values represent an improvement of 100 percent over the stud designs used previously for laminated wood wind turbine blades. However, temperatures of 100/sup 0/F with humidity at 100 percent in certain cases caused a loss of ultimate load capability approaching 35 percent and a loss of fatigue capacity approaching 50 percent. While this result may have been specimen-related, additional testing or a change in the epoxy resin system should be considered before using the bonded stud designs in hot, humid environments.

  13. Wood Burning Combined Cycle Power Plant 

    E-Print Network [OSTI]

    Culley, J. W.; Bourgeois, H. S.

    1984-01-01

    of the major components of the power plant. The cycle configuration is based on maximum fuel efficiency with minimum capital equipment risk. The cycle discussion includes design point performance of the power plant. The design represents a significant step...

  14. Black Holes In Astronomy Black Holes In Astronomy

    E-Print Network [OSTI]

    Wagner, Stephan

    Black Hole horizon static limit ergosphere radiation magnetic fields jet jet #12;Black-hole accretion with a central bulge. #12;Click to edit Master text styles Second level Third level Fourth level Fifth level Jets and lobes of Cygnus A Carilli et al. Supermassive black holes are the most powerful engines in the Universe

  15. New Developments in Wood-Destroying Organisms from the International Research Group on Wood Preservation (IRG)1

    E-Print Network [OSTI]

    , decay mechanisms and product problems, new techniques, insect problems and control, and developments associated with new methods of termite control Insects in dry wood (excluding termites) 1Presented Disease Work Conference and Western Forest Insect Work Conference meeting. For more details and data on

  16. The renaissance of black phosphorus

    E-Print Network [OSTI]

    Ling, Xi

    One hundred years after its first successful synthesis in the bulk form in 1914, black phosphorus (black P) was recently rediscovered from the perspective of a 2D layered material, attracting tremendous interest from ...

  17. Area products for black hole horizons

    E-Print Network [OSTI]

    Visser, Matt

    2013-01-01

    Area products for multi-horizon black holes often have intriguing properties, and are often independent of the mass of the black hole (depending only on various charges, angular momenta, and moduli). Such products are often formulated in terms of the areas of inner (Cauchy) horizons and event horizons, and often include the effects of unphysical "virtual'" horizons. For the Schwarzschild-de Sitter [Kottler] black hole in (3+1) dimensions it is shown by explicit exact calculation that the product of event horizon area and cosmological horizon area is not mass independent. (Including the effect of the third "virtual" horizon does not improve the situation.) Similarly, in the Reissner-Nordstrom-anti-de Sitter black hole in (3+1) dimensions the product of inner (Cauchy) horizon area and event horizon area is calculated (perturbatively), and is shown to be not mass independent. That is, the mass-independence of the product of physical horizon areas is not generic. In the generic situation, whenever the quasi-local...

  18. Electric Charge in Interaction with Magnetically Charged Black Holes

    E-Print Network [OSTI]

    J. H. Kim; Sei-Hoon Moon

    2007-10-02

    We examine the angular momentum of an electric charge e placed at rest outside a dilaton black hole with magnetic charge Q. The electromagnetic angular momentum which is stored in the electromagnetic field outside the black hole shows several common features regardless of the dilaton coupling strength, though the dilaton black holes are drastically different in their spacetime structure depending on it. First, the electromagnetic angular momentum depends on the separation distance between the two objects and changes monotonically from eQ to 0 as the charge goes down from infinity to the horizon, if rotational effects of the black hole are discarded. Next, as the black hole approaches extremality, however, the electromagnetic angular momentum tends to be independent of the distance between the two objects. It is then precisely $eQ$ as in the electric charge and monopole system in flat spacetime. We discuss why these effects are exhibited and argue that the above features are to hold in widely generic settings including black hole solutions in theories with more complicated field contents, by addressing the no hair theorem for black holes and the phenomenon of field expulsion exhibited by extremal black holes.

  19. Black Holes And Their Entropy 

    E-Print Network [OSTI]

    Mei, Jianwei

    2010-10-12

    . . . . . . . . . 21 1. Solutions in Four Dimensions . . . . . . . . . . . . . . 22 2. Solutions in Higher Dimensions . . . . . . . . . . . . . 27 C. Black Hole Solutions in Supergravity Theories . . . . . . . 30 D. Plebanski-Demianski Type Solutions in d = 5... is to discuss the construction of new black hole solutions and the calculation of the black hole entropy. In Chapter II, we shall re- port some new black hole solutions that we have found during the past few years [21, 22, 23] and we will discuss some...

  20. AN ABSTRACT OF THE THESIS OF Jebediah Wilson for the Master of Science in Civil Engineering and Wood Science presented

    E-Print Network [OSTI]

    Gupta, Rakesh

    and Wood Science presented on September 26, 2008. Title: Behavior of a 1/6th Scale, Two-Story, Wood Framed was to develop an understanding of the nature of surge wave loading on wood framed residential structures forces on a 1/6th scale wood framed residential structure, (2) to evaluate qualitatively the structural

  1. USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 527 DecAID: A Decaying Wood Advisory Model

    E-Print Network [OSTI]

    USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 527 DecAID: A Decaying Wood Advisory Model and decaying wood (dead and partially dead trees and down wood) necessary to maintain wildlife habitat in Washington and Oregon. Whereas the relationship of dead and decaying wood to wildlife habitat is a major

  2. IAWA Journal, Vol. 24 (4), 2003: 345353 THE AGE AND DENSITY OF ANCIENT AND MODERN OAK WOOD

    E-Print Network [OSTI]

    Stambaugh, Michael C

    IAWA Journal, Vol. 24 (4), 2003: 345­353 THE AGE AND DENSITY OF ANCIENT AND MODERN OAK WOOD of Missouri, 203 ABNR Building, Columbia, MO 65211, USA [E-mail: guyetter@missouri.edu] SUMMARY Large wood thousands of years. This wood affords the opportunity to compare a chronosequence of differ- ences in wood

  3. Woodfuel Use Update 1 I Wood fuel use in Scotland 2009 I Hudson Consulting I August 2009

    E-Print Network [OSTI]

    .1.3. Other Industry/Commercial Heat Only Wood Fuel Use 3.2. Pellet plants 3 in previous reports: Virgin wood fibre Imported fibre (in the form of wood pellets) Recycled fibre EnergyWoodfuel Use Update 1 I Wood fuel use in Scotland 2009 I Hudson Consulting I August 2009 Woodfuel

  4. Woodfuel Usage Update 1 I Wood fuel use in Scotland 2011 I Hudson Consulting I September 2011

    E-Print Network [OSTI]

    by 2012 and beyond. The use of recycled fibre is forecast to increase to 40% in 2012. 8. Four wood pellet in forecast demand for wood to be used for pellet production of 140k odt/yr in 2011. 9. The total of woodWoodfuel Usage Update 1 I Wood fuel use in Scotland 2011 I Hudson Consulting I September 2011

  5. URBAN WOOD/COAL CO-FIRING IN THE NIOSH BOILER PLANT

    SciTech Connect (OSTI)

    James T. Cobb Jr.

    2005-02-10

    Phase I of this project began by obtaining R&D variances for permits at the NIOSH boilerplant (NBP), Emery Tree Service (ETS) and the J. A. Rutter Company (JARC) for their portions of the project. Wood for the test burn was obtained from the JARC inventory (pallets), Thompson Properties and Seven D Corporation (construction wood), and the Arlington Heights Housing Project (demolition wood). The wood was ground at ETS and JARC, delivered to the Three Rivers Terminal and blended with coal. Three one-day tests using wood/coal blends of 33% wood by volume (both construction wood and demolition wood) were conducted at the NBP. Blends using hammermilled wood were operationally successful. Emissions of SO{sub 2} and NOx decreased and that of CO increased when compared with combusting coal alone. Mercury emissions were measured and evaluated. During the first year of Phase II the principal work focused upon searching for a replacement boilerplant and developing a commercial supply of demolition wood. The NBP withdrew from the project and a search began for another stoker boilerplant in Pennsylvania to replace it on the project. Three potential commercial demolition wood providers were contacted. Two were not be able to supply wood. At the end of the first year of Phase II, discussions were continuing with the third one, a commercial demolition wood provider from northern New Jersey. During the two-and-a-third years of the contract extension it was determined that the demolition wood from northern New Jersey was impractical for use in Pittsburgh, in another power plant in central New Jersey, and in a new wood gasifier being planned in Philadelphia. However, the project team did identify sufficient wood from other sources for the gasifier project. The Principal Investigator of this project assisted a feasibility study of wood gasification in Clarion County, Pennsylvania. As a result of the study, an independent power producer in the county has initiated a small wood gasification project at its site. Throughout much of this total project the Principal Investigator has counseled two small businesses in developing a waxed cardboard pellet business. A recent test burn of this biofuel appears successful and a purchase contract is anticipated soon. During the past two months a major tree-trimming firm has shown an active interest in entering the wood-chip fuel market in the Pittsburgh area and has contacted the NBP, among others, as potential customers. The NBP superintendent is currently in discussion with the facilities management of the Bruceton Research Center about resuming their interest in cofiring this renewable fuel to the stoker there.

  6. Energy generation and cogeneration from wood

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    The papers presented at the conference are included in this volume. Discussions from the four workshops are also provided. The subjects covered in the workshops are: materials handling; combustion technologies - pile, grate, and suspension systems; gasification and pyrolysis systems; and cogeneration. Separate abstracts for each paper have been prepared for inclusion in the Energy Data Base. (DMC)

  7. The Evolution of Accreting Black Holes in Outburst

    E-Print Network [OSTI]

    John A. Tomsick

    2004-01-12

    Black hole binaries exhibit dramatic changes in their X-ray spectral and timing properties over time, providing important clues about the physical processes that occur in these systems. Black holes and black hole candidates are prime targets for RXTE with observational goals including the study of extreme gravitational fields and jet formation mechanisms. The great wealth of data from RXTE has helped us to learn about these systems as well as raising new questions about accreting black holes. RXTE observations have allowed us to study a wide range of black hole science topics including the connection between the accretion disk and jets, the geometry of the inner accretion flow, and the physical changes that occur between spectral states. In this presentation, I discuss significant results on these topics that have been obtained for persistent and transient black holes over the past several years, and I present results from our program of X-ray and radio observations during the decays of black hole transient outbursts.

  8. Black Holes at Accelerators

    E-Print Network [OSTI]

    Bryan Webber

    2006-04-06

    In theories with large extra dimensions and TeV-scale gravity, black holes are copiously produced in particle collisions at energies well above the Planck scale. I briefly review some recent work on the phenomenology of this process, with emphasis on theoretical uncertainties and possible strategies for measuring the number of extra dimensions.

  9. Quantum black hole inflation

    E-Print Network [OSTI]

    M. B. Altaie

    2001-05-07

    In this paper we follow a new approach for particle creation by a localized strong gravitational field. The approach is based on a definition of the physical vacuum drawn from Heisenberg uncertainty principle. Using the fact that the gravitational field red-shifts the frequency modes of the vacuum, a condition on the minimum stregth of the gravitational field required to achieve real particle creation is derived. Application of this requirement on a Schwartzchid black hole resulted in deducing an upper limit on the region, outside the event horizon, where real particles can be created. Using this regional upper limit, and considering particle creation by black holes as a consequence of the Casimir effect, with the assumption that the created quanta are to be added to the initial energy, we deduce a natural power law for the development of the event horizon, and consequently a logarithmic law for the area spectrum of an inflating black hole. Application of the results on a cosmological model shows that if we start with a Planck-dimensional black hole, then through the process of particle creation we end up with a universe having the presently estimated critical density. Such a universe will be in a state of eternal inflation.

  10. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, Arthur L. (Woodland Hills, CA)

    1987-07-28

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediatley above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone.

  11. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, A.L.

    1987-07-28

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediately above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone. 2 figs.

  12. Statistical Mechanics of Black Holes

    E-Print Network [OSTI]

    B. Harms; Y. Leblanc

    1992-05-11

    We analyze the statistical mechanics of a gas of neutral and charged black holes. The microcanonical ensemble is the only possible approach to this system, and the equilibrium configuration is the one for which most of the energy is carried by a single black hole. Schwarzschild black holes are found to obey the statistical bootstrap condition. In all cases, the microcanonical temperature is identical to the Hawking temperature of the most massive black hole in the gas. U(1) charges in general break the bootstrap property. The problems of black hole decay and of quantum coherence are also addressed.

  13. Identification of Astrophysical Black Holes

    E-Print Network [OSTI]

    Sandip K. Chakrabarti

    1998-03-19

    Black holes are by definition black, and therefore cannot be directly observed by using electromagnetic radiations. Convincing identification of black holes must necessarily depend on the identification of a very specially behaving matter and radiation which surround them. A major problem in this subject of black hole astrophysics is to quantify the behaviour of matter and radiation close to the horizon. In this review, the subject of black hole accretion and outflow is systematically developed. It is shown that both the stationary as well as the non-stationary properties of the observed spectra could be generally understood by these solutions. It is suggested that the solutions of radiative hydrodynamic equations may produce clear spectral signatures of black holes. Other circumstantial evidences of black holes, both in the galactic centers as well as in binary systems, are also presented.

  14. Incorporation of metal nanoparticles into wood substrate and methods

    DOE Patents [OSTI]

    Rector, Kirk D; Lucas, Marcel

    2015-11-04

    Metal nanoparticles were incorporated into wood. Ionic liquids were used to expand the wood cell wall structure for nanoparticle incorporation into the cell wall structure. Nanoparticles of elemental gold or silver were found to be effective surface enhanced Raman spectroscopy (SERS) imaging contrast or sensing agents. Nanoparticles of elemental iron were found to be efficient microwave absorbers and caused localized heating for disrupting the integrity of the lignocellulosic matrix. Controls suggest that the localized heating around the iron nanoparticles reduces losses of cellulose in the form of water, volatiles and CO.sub.2. The ionic liquid is needed during the incorporation process at room temperature. The use of small amounts of ionic liquid combined with the absence of an ionic liquid purification step and a lower energy and water use are expected to reduce costs in an up-scaled pretreatment process.

  15. Assessment of superheated steam drying of wood waste

    SciTech Connect (OSTI)

    Woods, B.G.; Nguyen, Y.; Bruce, S.

    1994-12-31

    A 5 MW co-generation facility using wood waste is described which will supply power to Ontario Hydro, steam to the sawmill for process heating, and hot water for district heating customers in the town. The use of superheated steam for drying the wood was investigated to determine the impact on boiler performance, the environmental impact and the economic feasibility. The main benefit with superheated steam drying is the reduction in VOC emissions. The capital cost is currently higher with superheated steam drying, but further investigation is warranted to determine if the cost reductions which could be achieved by manufacturing the major components in North America are sufficient to make the technology cost competitive.

  16. QUALITY OF WOOD PELLETS PRODUCED IN BRITISH COLUMBIA FOR EXPORT

    SciTech Connect (OSTI)

    Tumuluru, J.S. [Idaho National Laboratory (INL); Sokhansanj, Shahabaddine [ORNL; Lim, C. Jim [University of British Columbia, Vancouver; Bi, X.T. [University of British Columbia, Vancouver; Lau, A.K. [University of British Columbia, Vancouver; Melin, Staffan [University of British Columbia, Vancouver; Oveisi, E. [University of British Columbia, Vancouver; Sowlati, T. [University of British Columbia, Vancouver

    2010-11-01

    Wood pellet production and its use for heat and power production are increasing worldwide. The quality of export pellets has to consistently meet certain specifications as stipulated by the larger buyers, such as power utilities or as specified by the standards used for the non-industrial bag market. No specific data is available regarding the quality of export pellets to Europe. To develop a set of baseline data, wood pellets were sampled at an export terminal in Vancouver, British Columbia, Canada. The sampling period was 18 months in 2007-2008 when pellets were transferred from storage bins to the ocean vessels. The sampling frequency was once every 1.5 to 2 months for a total of 9 loading/shipping events. The physical properties of the wood pellets measured were moisture content in the range of 3.5% to 6.5%, bulk density from 728 to 808 kg/m3, durability from 97% to 99%, fines content from 0.03% to 0.87%, calorific value as is from 17 to almost 18 MJ/kg, and ash content from 0.26% to 0.93%.The diameter and length were in the range of 6.4 to 6.5 mm and 14.0 to 19.0 mm, respectively. All of these values met the published non-industrial European grades (CEN) and the grades specified by the Pellet Fuel Institute for the United States for the bag market. The measured values for wood pellet properties were consistent except the ash content values decreased over the test period.

  17. Quality of Wood Pellets Produced in British Columbia for Export

    SciTech Connect (OSTI)

    J. S. Tumuluru; S. Sokhansanj; C. J. Lim; T. Bi; A. Lau; S. Melin; T. Sowlati; E. Oveisi

    2010-11-01

    Wood pellet production and its use for heat and power production are increasing worldwide. The quality of export pellets has to consistently meet certain specifications as stipulated by the larger buyers, such as power utilities or as specified by the standards used for the non-industrial bag market. No specific data is available regarding the quality of export pellets to Europe. To develop a set of baseline data, wood pellets were sampled at an export terminal in Vancouver, British Columbia, Canada. The sampling period was 18 months in 2007-2008 when pellets were transferred from storage bins to the ocean vessels. The sampling frequency was once every 1.5 to 2 months for a total of 9 loading/shipping events. The physical properties of the wood pellets measured were moisture content in the range of 3.5% to 6.5%, bulk density from 728 to 808 kg/m3, durability from 97% to 99%, fines content from 0.03% to 0.87%, calorific value as is from 17 to almost 18 MJ/kg, and ash content from 0.26% to 0.93%.The diameter and length were in the range of 6.4 to 6.5 mm and 14.0 to 19.0 mm, respectively. All of these values met the published non-industrial European grades (CEN) and the grades specified by the Pellet Fuel Institute for the United States for the bag market. The measured values for wood pellet properties were consistent except the ash content values decreased over the test period.

  18. Genotoxicity profiles during KPEG dehalogenation of wood preserving waste 

    E-Print Network [OSTI]

    Hong, Marjorie S

    1994-01-01

    treatment for hazardous wastes. However, as opposed to landfilling aud other nsethods. incineration provides an insmerliate and pernaanent solutiou. Hydroc&arbons in soils, sludges, liqu&ds, and fumes are mineralized to svater aud carbou dioxide (Long... time, PCP concentration, and waste water content were stud- ied to deterinine approximate optimal conditions for KPEG dehalogenation. KPEG was added to wood preserving waste sludge at temperatures ranging from 30-120 C. The mixture was then treated...

  19. Laguna Woods, California: 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 on QA:QAsource History View NewTexas: EnergyKulpsville,LEDSGP/activitiesPlata ElectricLackawanna,Oregon:Beach,Woods,

  20. Lake of the Woods County, Minnesota: Energy Resources | Open Energy

    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 NewTexas:Montezuma, Arizona: Energy Resources Jump to: navigation,Utah:Information Woods

  1. Wood-Burning Heating System Deduction | 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.ProjectsLeaders |3RadjaWendeWood and

  2. Brief review on higher spin black holes

    E-Print Network [OSTI]

    Alfredo Perez; David Tempo; Ricardo Troncoso

    2014-05-12

    We review some relevant results in the context of higher spin black holes in three-dimensional spacetimes, focusing on their asymptotic behaviour and thermodynamic properties. For simplicity, we mainly discuss the case of gravity nonminimally coupled to spin-3 fields, being nonperturbatively described by a Chern-Simons theory of two independent sl(3,R) gauge fields. Since the analysis is particularly transparent in the Hamiltonian formalism, we provide a concise discussion of their basic aspects in this context; and as a warming up exercise, we briefly analyze the asymptotic behaviour of pure gravity, as well as the BTZ black hole and its thermodynamics, exclusively in terms of gauge fields. The discussion is then extended to the case of black holes endowed with higher spin fields, briefly signaling the agreements and discrepancies found through different approaches. We conclude explaining how the puzzles become resolved once the fall off of the fields is precisely specified and extended to include chemical potentials, in a way that it is compatible with the asymptotic symmetries. Hence, the global charges become completely identified in an unambiguous way, so that different sets of asymptotic conditions turn out to contain inequivalent classes of black hole solutions being characterized by a different set of global charges.

  3. Black Hole Scan

    E-Print Network [OSTI]

    Juan Crisostomo; Ricardo Troncoso; Jorge Zanelli

    2000-09-22

    Gravitation theories selected by requiring that they have a unique anti-de Sitter vacuum with a fixed cosmological constant are studied. For a given dimension d, the Lagrangians under consideration are labeled by an integer k=1,2,...,[(d-1)/2]. Black holes for each d and k are found and are used to rank these theories. A minimum possible size for a localized electrically charged source is predicted in the whole set of theories, except General Relativity. It is found that the thermodynamic behavior falls into two classes: If d-2k=1, these solutions resemble the three dimensional black hole, otherwise, their behavior is similar to the Schwarzschild-AdS_4 geometry.

  4. Black holes at accelerators.

    E-Print Network [OSTI]

    Webber, Bryan R

    be presented and the effects of some of the uncertainties can be investigated. 3.1. Hawking Spectrum With the above assumptions, the spectrum of particles emitted during black hole decay takes the form dN dE ? ?E2 (eE/TH ? 1) T n+6H (8) where as usual... the trapped surface area [6, 7]. T030 02 4 6 8 10 0 0.2 0.4 0.6 0.8 1 1.2 n=0 n=1 n=2 n=6 E rS ?ˆ (0 ) ab s/ pi r2 S Figure 4: Grey-body factors for scalar emission on the brane from a (4 + n)D black hole. 0 2 4 6 8 10 0 0.2 0.4 0.6 0.8 1 1.2 n=0 n=1 n=2 n=6 E...

  5. Black Hole Demographics

    E-Print Network [OSTI]

    Laura Ferrarese

    2002-03-04

    The purpose of this contribution is to review the current status of black hole demographics in light of recent advances in the study of high redshift QSOs (section 2), local AGNs (section 3) and local quiescent galaxies (section 4). I will then outline the prospects for future progress (section 5), and discuss what I believe will be the challenges for the years to come [ABRIDGED].

  6. Method for predicting dry mechanical properties from wet wood and standing trees

    DOE Patents [OSTI]

    Meglen, Robert R.; Kelley, Stephen S.

    2003-08-12

    A method for determining the dry mechanical strength for a green wood comprising: illuminating a surface of the wood to be determined with light between 350-2,500 nm, the wood having a green moisture content; analyzing the surface using a spectrometric method, the method generating a first spectral data, and using a multivariate analysis to predict the dry mechanical strength of green wood when dry by comparing the first spectral data with a calibration model, the calibration model comprising a second spectrometric method of spectral data obtained from a reference wood having a green moisture content, the second spectral data correlated with a known mechanical strength analytical result obtained from a reference wood when dried and having a dry moisture content.

  7. Superfund Record of Decision (EPA Region 6): Mid-South Wood Products, Polk County, Arkansas, November 1986. First remedial action. Final report

    SciTech Connect (OSTI)

    Not Available

    1986-11-14

    The Mid-South Wood Products site is located in Polk County, Arkansas, approximately 1/2 mile southwest of Mena, Arkansas. The 57-acre site includes the following areas: the Old Plant site, the Small Old Pond and Old Pond areas, the North and South Landfarms, the landfill, Clear Lake and an existing chromated copper arsenate (CCA) treatment plant. The Old Plant site was used to treat wood with pentachlorophenol (PCP) and creosote; the Small Old Pond was the original impoundment for waste PCP and creosote. These two areas have been covered with soil. The Old Pond area was used to store PCP and creosote sludge and has since been graded and covered with soil; materials from the Old Pond were spread over the Landfarm areas and mixed into the soil; the Landfill area contains deposits of sawdust, woodchips, and other waste-wood products; Clear Lake receives runoff from all the above areas; the CCA treatment plant contains an ongoing wood-treating operation where the surface drainage from the plant is put in sumps.

  8. caused by the wood-rotting basidiomycete fungus Heterobasidion annosum. This pathogen gains entry

    E-Print Network [OSTI]

    caused by the wood-rotting basidiomycete fungus Heterobasidion annosum. This pathogen gains entry viability and discourages germination while preventing the growth of other microorganisms. The concentrated

  9. Ross Woods and Dr. Shane A. Brown Department of Civil Engineering Washington State University

    E-Print Network [OSTI]

    Collins, Gary S.

    Ross Woods and Dr. Shane A. Brown Department of Civil Engineering · Washington State University al. 2007). Other Findings: · Increased Interest in careers in Science, Technology, Engineering

  10. Case-Based Support for Forestry Decisions: How to See the Wood from the Trees

    E-Print Network [OSTI]

    Bridge, Derek

    is to estimate what products can be produced from a tree, e.g. size and quality of planks, amount of wood-chip

  11. Genomics of wood-degrading fungi (Journal Article) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Details In-Document Search This content will become publicly available on November 1, 2015 Title: Genomics of wood-degrading fungi Authors: Ohm, Robin A. ; Riley, Robert ;...

  12. #include #include

    E-Print Network [OSTI]

    Kessler, Christoph

    ] (where a[n] = +infty). C's * bsearch() can't be used, it requires a[j]==key. */ int findloc( void *key Combine­CRCW BSP­Quicksort * variant by Gerbessiotis/Valiant JPDC 22(1994) * implemented in NestStep­C. */ int N=10; // default value /** findloc(): find largest index j in [0..n­1] with * a[j

  13. Black holes in general relativity

    E-Print Network [OSTI]

    Visser, Matt

    2009-01-01

    What is going on (as of August 2008) at the interface between theoretical general relativity, string-inspired models, and observational astrophysics? Quite a lot. In this mini-survey I will make a personal choice and focus on four specific questions: Do black holes "exist"? (For selected values of the word "exist".) Is black hole formation and evaporation unitary? Can one mimic a black hole to arbitrary accuracy? Can one detect the presence of a horizon using local physics?

  14. Magnetic wormholes and black universes with invisible ghosts

    E-Print Network [OSTI]

    Bronnikov, K A

    2015-01-01

    We construct explicit examples of globally regular static, spherically symmetric solutions in general relativity with scalar and electromagnetic fields describing traversable wormholes with flat and AdS asymptotics and regular black holes, in particular, black universes. (A black universe is a regular black hole with an expanding, asymptotically isotropic space-time beyond the horizon.) The existence of such objects requires invoking scalars with negative kinetic energy ("phantoms", or "ghosts"), which are not observed under usual physical conditions. To account for that, the so-called "trapped ghosts" were previously introduced, i.e., scalars whose kinetic energy is only negative in a restricted strong-field region of space-time and positive outside it. This approach leads to certain problems, including instability (as is illustrated here by derivation of an effective potential for spherical pertubations of such systems). In this paper, we use for model construction what we call "invisible ghosts", i.e., pha...

  15. Local free-fall temperature of a RN-AdS black hole

    E-Print Network [OSTI]

    Yong-Wan Kim; Jaedong Choi; Young-Jai Park

    2010-03-09

    We use the global embedding Minkowski space (GEMS) geometries of a (3+1)-dimensional curved Reissner-Nordstr\\"om(RN)-AdS black hole spacetime into a (5+2)-dimensional flat spacetime to define a proper local temperature, which remains finite at the event horizon, for freely falling observers outside a static black hole. Our extended results include the known limiting cases of the RN, Schwarzschild--AdS, and Schwarzschild black holes.

  16. Quantum Mechanics and Black Holes

    E-Print Network [OSTI]

    Jose N. Pecina-Cruz

    2005-11-27

    This paper discusses the existence of black holes from the foundations of quantum mechanics. It is found that quantum mechanics rule out a possible gravitational collapse.

  17. Why Blue-Collar Blacks Help Less

    E-Print Network [OSTI]

    Smith, Sandra Susan; Young, Kara Alexis

    2013-01-01

    Exclude Black Men from Blue-Collar Jobs. Berkeley, CA:How Black and Latino Blue Collar Workers Make Decisionsof Sample Respondents Blue-Collar Latinos Blue-Collar Black

  18. Dermoscopy of black-spot poison ivy

    E-Print Network [OSTI]

    Rader, Ryan K; Mu, Ruipu; Shi, Honglan; Stoecker, William V; Hinton, Kristen A

    2012-01-01

    CT, Bean AS. Black-spot poison ivy: A rare phenomenon. J AmJG, Lucky AW. Black spot poison ivy: A report of 5 cases andis unique for black-spot poison ivy. The UFLC-MS/MS urushiol

  19. Green, Black, Lean Six Sigma and Master Black Belt Certifications

    E-Print Network [OSTI]

    Grissino-Mayer, Henri D.

    Green, Black, Lean Six Sigma and Master Black Belt Certifications Green BeLt CertifiCation Candidates may choose from three Green Belts offered: 1) Lean (one week of coursework) 2) Lean Six Sigma (two weeks of coursework) 3) Six Sigma (two weeks of coursework) Green Belt certification is a two

  20. Thermal BEC black holes

    E-Print Network [OSTI]

    Roberto Casadio; Andrea Giugno; Octavian Micu; Alessio Orlandi

    2015-11-04

    We review some features of BEC models of black holes obtained by means of the HWF formalism. We consider the KG equation for a toy graviton field coupled to a static matter current in spherical symmetry. The classical field reproduces the Newtonian potential generated by the matter source, while the corresponding quantum state is given by a coherent superposition of scalar modes with continuous occupation number. An attractive self-interaction is needed for bound states to form, so that (approximately) one mode is allowed, and the system of N bosons can be self-confined in a volume of the size of the Schwarzschild radius. The HWF is then used to show that the radius of such a system corresponds to a proper horizon. The uncertainty in the size of the horizon is related to the typical energy of Hawking modes: it decreases with the increasing of the black hole mass (larger number of gravitons), in agreement with semiclassical calculations and different from a single very massive particle. The spectrum contains a discrete ground state of energy $m$ (the bosons forming the black hole), and a continuous spectrum with energy $\\omega > m$ (representing the Hawking radiation and modelled with a Planckian distribution at the expected Hawking temperature). The $N$-particle state can be collectively described by a single-particle wave-function given by a superposition of a total ground state with energy $M = N m$ and a Planckian distribution for $E > M$ at the same Hawking temperature. The partition function is then found to yield the usual area law for the entropy, with a logarithmic correction related with the Hawking component. The backreaction of modes with $\\omega > m$ is also shown to reduce the Hawking flux and the evaporation properly stops for vanishing mass.

  1. Wood-Ridge, New Jersey: 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| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:Wizard Power Pty Ltd Jump to:Texas: EnergyWood,

  2. Woods Hole, Massachusetts: 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| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:Wizard Power Pty LtdWoodlawn Park,Woodridge,County,Woods

  3. Pore space analysis of beech wood: the vessel network

    E-Print Network [OSTI]

    Philipp Hass; Falk K. Wittel; S. A. McDonald; F. Marone; M. Stampanoni; Hans J. Herrmann; Peter Niemz

    2015-09-10

    Water transport in wood is vital for the survival of trees. With synchrotron radiation X-ray tomographic microscopy (SRXTM), it becomes possible to characterize and quantify the 3D network formed by vessels that are responsible for longitudinal transport. In the present paper, the spatial size dependence of vessels and the organization inside single growth rings in terms of vessel induced porosity was studied by SRXTM. Network characteristics, such as connectivity, were deduced by digital image analysis from the processed tomographic data and related to known complex network topologies.

  4. Wood Gasification: Where It's At, Where It's Going 

    E-Print Network [OSTI]

    Murphy, M. L.

    1981-01-01

    the proven combustion system. With other applications such as the firing of lime kilns in the pul p and pape r indus try where the opti ons, other than fossil fuel s and gasification, are non existent and the economics for gasification are very similar... in biomass gasifi cation. As early as 1839, processes were in operation on coal, wood or other residues in which a combustible off-gas, or producer gas as it was aptly dubbed, was generated by the incomplete fuel oxidatior, \

  5. Meadow Woods, Florida: 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 on QA:QAsource History ViewMayo, Maryland: Energy Resources Jump to:Electric Coop, IncSouth Dakota: Energy ResourcesWoods,

  6. Mission Woods, Kansas: 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 on QA:QAsource History ViewMayo, Maryland: Energy ResourcesDec 2005Minnehaha County,EnergyIIMotors Jump to:Woods, Kansas:

  7. International WoodFuels LLC | 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 NewTexas: Energy ResourcesOrder at 8, 13Renewable Power JumpForestWoodFuels LLC Jump to:

  8. Wood County Electric Coop, Inc | 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 JEnvironmental Jump to:EAand Dalton Jump to: navigation,Wood County Electric Coop, Inc Jump to:

  9. Wood County, Wisconsin: 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 on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to: navigation,Wood County Electric Coop, Inc Jump

  10. Woods Hole Research Center Wind Turbine | 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 JEnvironmental Jump to:EAand Dalton Jump to: navigation,Wood County Electric Coop, IncCoopHole

  11. Lake of the Woods, California: 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 on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds Jump to: navigation, search Name Lake WindsWoods,

  12. Wood-Composites Industry Benefits from ALS Research

    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 WithTelecentricNCubictheThe U.S.DecemberChinnConcernsStartingWood

  13. Wood and Pellet Heating Basics | 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.Energy Wind PowerRegina Rameika WomenWood and Pellet

  14. Black Stars and Gamma Ray Bursts

    E-Print Network [OSTI]

    Tanmay Vachaspati

    2007-06-08

    Stars that are collapsing toward forming a black hole but are frozen near the Schwarzschild horizon are termed ``black stars''. Collisions of black stars, in contrast to black hole collisions, may be sources of gamma ray bursts, whose basic parameters are estimated quite simply and are found to be consistent with observed gamma ray bursts. Black star gamma ray bursts should be preceded by gravitational wave emission similar to that from the coalescence of black holes.

  15. Understanding the 2014 Manufacturing Energy and Carbon Footprints

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

    examples of byproduct fuels include black liquor and wood byproducts in pulp and paper mills and still gas in petroleum refineries. As noted earlier in this document, a...

  16. Black Holes of Negative Mass

    E-Print Network [OSTI]

    R. B. Mann

    1997-05-06

    I demonstrate that, under certain circumstances, regions of negative energy density can undergo gravitational collapse into a black hole. The resultant exterior black hole spacetimes necessarily have negative mass and non-trivial topology. A full theory of quantum gravity, in which topology-changing processes take place, could give rise to such spacetimes.

  17. Seismic design of a current woodframe structure and study of innovative products and damping systems in wood construction

    E-Print Network [OSTI]

    Mahjoub, Nina A. (Nina Azadeh)

    2007-01-01

    Wood structures have seen resurgence in popularity over the past several decades, especially in Western States of America, such as California. The industry keeps creating new structural wood products of exceptional strength, ...

  18. Solar energy and multi-storey residential buildings Larry Hughes and Tylor Wood

    E-Print Network [OSTI]

    Hughes, Larry

    ERG/200702 Solar energy and multi-storey residential buildings Larry Hughes and Tylor Wood Energy.hughes@dal.ca 26 March 2007 #12;Hughes and Wood: Solar energy and multi-storey residential buildings 1 Summary This report considers the limitations on solar energy in new, multi-storey residential buildings. In a time

  19. Generation, Use, Disposal, and Management Options for CCA-Treated Wood

    E-Print Network [OSTI]

    Florida, University of

    AND HAZARDOUS WASTE MANAGEMENT 2207 NW 13 Street, Suite D Gainesville, FL 32609 Report #98-1 #12;i TABLE Waste 20 CHAPTER III, MANAGEMENT OPTIONS III.1 Waste Minimization 34 III.2 Reuse 38 III.3 Recycling 39 of Management Options for CCA-Treated Wood 43 Waste Table A-1 Wood Treatment Plants Located in Florida A-2 to A

  20. SECTION 45 Table of Contents 45 Lake Rufus Woods Subbasin Overview.......................................................2

    E-Print Network [OSTI]

    and tributaries from Chief Joseph Dam to Grand Coulee Dam in north central Washington state. 45.2 Lake Rufus Woods impoundment located in north central Washington. Lake Rufus Woods is bounded by Chief Joseph Dam at river mile (RM) 545.1 at its lower end, and Grand Coulee Dam at RM 596.6 at its upper end. The Colville Indian

  1. INTRODUCTION Red wood ants play an important role in the ecology of

    E-Print Network [OSTI]

    Thomas, Len

    INTRODUCTION Red wood ants play an important role in the ecology of woodland ecosystems by virtue the ecological impor- tance of red wood ants (Gösswald, 1989) and the conser- vation concern for some species.borkin@clear.net.nz 2 Royal Society for the Protection of Birds, Etive House, Beechwood Park, Inverness, IV2 3BW, UK; e

  2. Wood Pellets for UBC Boilers Replacing Natural Gas Based on LCA

    E-Print Network [OSTI]

    Wood Pellets for UBC Boilers Replacing Natural Gas Based on LCA Submitted to Dr. Bi By Bernard Chan Pellets for UBC Boilers Replacing Natural Gas" By Bernard Chan, Brian Chan, and Christopher Young Abstract This report studies the feasibility of replacing natural gas with wood pellets for UBC boilers. A gasification

  3. European Institute for Wood Preservation Congress 4-6 September 2008, Lausanne, Switzerland

    E-Print Network [OSTI]

    European Institute for Wood Preservation Congress 4-6 September 2008, Lausanne, Switzerland, Geneva #12;European Institute for Wood Preservation Congress 4-6 September 2008, Lausanne, Switzerland 2008, Lausanne, Switzerland Main sources of information W W W W W W W W W W W W · UNECE/FAO Forest

  4. Research Summary The `Faith Woodland' project in Maulden Woods: an evaluation

    E-Print Network [OSTI]

    Research Summary The `Faith Woodland' project in Maulden Woods: an evaluation A pioneering `Faith Woodland' project at Maulden Wood in Bedfordshire was evaluated in 2007, nearly two years after woodlands in future. The Faith Woodlands leaflet produced through the project has the strapline `Different

  5. SUPPLEMENTARY INFORMATION FOR:1 Diurnal variations of ambient particulate wood burning2

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    1 SUPPLEMENTARY INFORMATION FOR:1 Diurnal variations of ambient particulate wood burning2 emissions 616263646566 67686970717273747576 7778798081828384858687888990 919293949596979899100 BBOA wood burning 1² = 0.77 C3H5O2 + vs BBOA r² = 0.93 5 4 3 2 1 0 HOA(µgm -3 ) 706050403020100 NOx (ppb) HOA vs NOx r² = 0

  6. Optical response of grating-coupler-induced intersubband resonances: The role of Wood's anomalies

    E-Print Network [OSTI]

    Ludwig-Maximilians-Universität, München

    Optical response of grating-coupler-induced intersubband resonances: The role of Wood's anomalies L of Wood's anomalies. S0163-1829 97 05403-9 I. INTRODUCTION The optical and electronic properties at, e.g., a modulation- doped semiconductor heterojunction have been widely stud- ied in the recent

  7. Research Article Fibre wall and lumen fractions drive wood density variation

    E-Print Network [OSTI]

    Wright, Ian

    with hydraulic strategies. Denser woods tend to operate at more negative water potentials (Ackerly 2004; Bucci et et al. 2011). Wood density has been studied in relation to hydraulic conductivity but the results.s.zieminska@gmail.com Published by Oxford University Press on behalf of the Annals of Botany Company. This is an Open Access

  8. Wood products trade and foreign markets: Asian market profile issue, November 1993. Foreign agriculture circular

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    Contents: trade summary; significant developments; status of usda/ccc export credit guarantees for wood products; US global export status; trends in US exports to the pacific rim; market profiles for wood products; pacific rim; europe; commodity/country trade tables; US exports, 1988 - 1st half 1993; US imports, 1988 - 1st half 1993.

  9. Presentation 2.6: Wood waste for energy: lessons learnt from tropical regions Paul Vantomme

    E-Print Network [OSTI]

    the production chain MalaysiaResearch and development in energy alternative from biomass through briquetting and forest industries GhanaDevelopment of energy alternatives for the efficient utilization of woodPresentation 2.6: Wood waste for energy: lessons learnt from tropical regions Paul Vantomme

  10. Influences of Government Interventions on Increasing Value-Added Wood Product Exports from Ghana

    E-Print Network [OSTI]

    Influences of Government Interventions on Increasing Value-Added Wood Product Exports from Ghana exporting raw materials such lumber to exporting processed or value-added wood products. In the mid-1990s on increasing value-added exports. These actions are: 1) the imposition of a levy on air-dried lumber exports, 2

  11. US, EU Consumption Driving Chinese Imports of Illegal Wood from Around the World

    E-Print Network [OSTI]

    US, EU Consumption Driving Chinese Imports of Illegal Wood from Around the World Chinese Government the world's leading importer of wood from tropical, developing countries. China has captured one, and environmental destruction and poverty in forest areas around the world. It also presents a number

  12. ORIGINAL PAPER Wood ash effects on nutrient dynamics and soil properties

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ORIGINAL PAPER Wood ash effects on nutrient dynamics and soil properties under Mediterranean aims to evaluate the effects of wood ash application on nutrient dynamics and soil properties of an acidic forest soil (Arenosol). & Methods Treatments were loose and pelleted ash application (11 Mg ha-1

  13. SIDA DemoEast programme in Estonia. Supply, delivery and installation of wood pellet burning equipment

    E-Print Network [OSTI]

    Overviews 1 SIDA DemoEast programme in Estonia. Supply, delivery and installation of wood pellet. The DemoEast programme objective in Estonia was to promote the pellets firing technology, equipment and Kiltsi light oil fired boilers have been converted to wood pellets burning. The supplier

  14. RETENTION OF Cd, Cu, Pb AND Zn BY WOOD ASH, LIME AND FUME DUST

    E-Print Network [OSTI]

    Ma, Lena

    RETENTION OF Cd, Cu, Pb AND Zn BY WOOD ASH, LIME AND FUME DUST TAIT CHIRENJE1 , LENA Q. MA2 and ecosystem health. This study investigated the effectiveness of wood ash in immobilizing the heavy metals Pb, Cd, Cu and Zn from aqueous solutions. The effects of initial metal concentrations, solution pH, ash

  15. Use of Wood Waste in Rehabilitation of Landings Constructed on Fine-Textured

    E-Print Network [OSTI]

    Sanborn, Paul

    Use of Wood Waste in Rehabilitation of Landings Constructed on Fine-Textured Soils, Central landings and roads constructed on fine-textured Alfisols must ameliorate poor soil structure, high bulk rehabilitated with three operationally feasible treatments: (1) incorpora- tion of waste wood chips (140 t

  16. THE ROLE OF DEAD WOOD IN MAINTAINING ARTHROPOD DIVERSITY ON THE FOREST FLOOR.

    SciTech Connect (OSTI)

    Hanula, James L.; Horn, Scott; Wade, Dale D.

    2006-08-01

    Abstract—Dead wood is a major component of forests and contributes to overall diversity, primarily by supporting insects that feed directly on or in it. Further, a variety of organisms benefit by feeding on those insects. What is not well known is how or whether dead wood influences the composition of the arthropod community that is not solely dependent on it as a food resource, or whether woody debris influences prey available to generalist predators. One group likely to be affected by dead wood is ground-dwelling arthropods. We studied the effect of adding large dead wood to unburned and frequently burned pine stands to determine if dead wood was used more when the litter and understory plant community are removed. We also studied the effect of annual removal of dead wood from large (10-ha) plots over a 5-year period on ground-dwelling arthropods. In related studies, we examined the relationships among an endangered woodpecker that forages for prey on live trees, its prey, and dead wood in the forest. The results of these and other studies show that dead wood can influence the abundance and diversity of the ground-dwelling arthropod community and of prey available to generalist predators not foraging directly on dead trees.

  17. Seismic Screening, Evaluation, Rehabilitation, and Design Provisions for Wood-Framed Structures

    E-Print Network [OSTI]

    Gupta, Rakesh

    Seismic Screening, Evaluation, Rehabilitation, and Design Provisions for Wood-Framed Structures Preston Baxter, M.ASCE1 ; Thomas H. Miller, M.ASCE2 ; and Rakesh Gupta, M.ASCE3 Abstract: Seismic Database subject headings: Seismic analysis; Seismic design; Wood structures; Shear walls; Diaphragms

  18. Opportunities for UPC Product and Service Suppliers: The Wood Products Industry

    E-Print Network [OSTI]

    Wu, Qinglin

    Opportunities for UPC Product and Service Suppliers: The Wood Products Industry Working Paper #4, profitability and competitiveness through point-of-sale scanning. Home center suppliers have been encouraged competitors. Accordingly, wood products suppliers have begun the process of adopting UPC capabilities to serve

  19. Material Point Method Simulations of Transverse Fracture in Wood with Realistic Morphologies

    E-Print Network [OSTI]

    Nairn, John A.

    Material Point Method Simulations of Transverse Fracture in Wood with Realistic Morphologies By J Material point method Numerical modeling RT fracture TR fracture; Transverse fracture Summary A new used to simulate transverse fracture in solid wood. The simulations were run on the scale of growth

  20. Black Ge Based on Crystalline/Amorphous Core/Shell Nanoneedle Arrays

    E-Print Network [OSTI]

    Javey, Ali

    Black Ge Based on Crystalline/Amorphous Core/Shell Nanoneedle Arrays Yu-Lun Chueh,,§,|,# Zhiyong, ROC ABSTRACT Direct growth of black Ge on low-temperature substrates, including plastics and rubber is reported. The material is based on highly dense, crystalline/amorphous core/shell Ge nanoneedle arrays

  1. Nonlinearly charged Lifshitz black holes for any exponent $z>1$

    E-Print Network [OSTI]

    Abigail Alvarez; Eloy Ayón-Beato; Hernán A. González; Mokhtar Hassaïne

    2015-01-27

    Charged Lifshitz black holes for the Einstein-Proca-Maxwell system with a negative cosmological constant in arbitrary dimension $D$ are known only if the dynamical critical exponent is fixed as $z=2(D-2)$. In the present work, we show that these configurations can be extended to much more general charged black holes which in addition exist for any value of the dynamical exponent $z>1$ by considering a nonlinear electrodynamics instead of the Maxwell theory. More precisely, we introduce a two-parametric nonlinear electrodynamics defined in the more general, but less known, so-called $(\\mathcal{H},P)$-formalism and obtain a family of charged black hole solutions depending on two parameters. We also remark that the value of the dynamical exponent $z=D-2$ turns out to be critical in the sense that it yields asymptotically Lifshitz black holes with logarithmic decay supported by a particular logarithmic electrodynamics. All these configurations include extremal Lifshitz black holes. Charged topological Lifshitz black holes are also shown to emerge by slightly generalizing the proposed electrodynamics.

  2. The mass function of high redshift seed black holes

    E-Print Network [OSTI]

    Giuseppe Lodato; Priyamvada Natarajan

    2007-02-13

    In this paper we derive the mass function of seed black holes that result from the central mass concentrated via disc accretion in collapsed haloes at redshift $z\\approx 15$. Using standard arguments including stability, we show that these pre-galactic discs can assemble a significant mass concentration in the inner regions, providing fuel for the formation and initial growth of super-massive black holes. Assuming that these mass concentrations do result in central seed black holes, we determine the mass distribution of these seeds as a function of key halo properties. The seed mass distribution determined here turns out to be asymmetric and skewed to higher masses. Starting with these initial seeds, building up to $10^9$ solar masses by $z = 6$ to power the bright quasars is not a problem in the standard LCDM cosmogony. These seed black holes in gas rich environments are likely to grow into the supermassive black holes at later times via mergers and accretion. Gas accretion onto these seeds at high redshift will produce miniquasars that likely play an important role in the reionization of the Universe. Some of these seed black holes on the other hand could be wandering in galaxy haloes as a consequence of frequent mergers, powering the off-nuclear ultra-luminous X-ray sources detected in nearby galaxies.

  3. Woodfuel Usage Update 1 I Wood fuel use in Scotland 2012 I Hudson Consulting I November 2012

    E-Print Network [OSTI]

    in progress 3.3. Wood fuel usage by fuel category 3.4. Pellet plants 3.5. Greenhouse gas emissions 4 to 1.073 million odt in 2014. 8. Four wood pellet manufacturing plants in Scotland used in total some 80k odt of wood in 2011. There is a major increase in forecast demand for wood to be used as pellet

  4. URBAN WOOD/COAL CO-FIRING IN THE NIOSH BOILERPLANT

    SciTech Connect (OSTI)

    James T. Cobb, Jr.; Gene E. Geiger; William W. Elder III; Thomas Stickle; Jun Wang; Hongming Li; William P. Barry

    2002-06-13

    During the third quarter, the experimental portion of the project was carried out. Three one-day tests using wood/coal blends of 33% wood by volume (both construction wood and demolition wood) were conducted at the NIOSH Boiler Plant (NBP). Blends using hammer-milled wood were operationally successful and can form the basis of Phase II. Emissions of SO{sub 2} and NOx decreased and that of CO increased when compared with combusting coal alone. Mercury emissions were measured and the mathematical modeling of mercury speciation reactions continued, yielding many interesting results. Material and energy balances for the test periods at the NBP, as well as at the Bellefield Boiler Plant, were prepared. Steps were taken to remove severe constraints from the Pennsylvania Switchgrass Energy and Conservation Project and to organize the supplying of landfill gas to the Bruceton federal complex. Two presentations were made to meetings of the Electric Power Research Institute and the National Energy Technology Laboratory.

  5. Corrected form of the first law of thermodynamics for regular black holes

    E-Print Network [OSTI]

    Meng-Sen Ma; Ren Zhao

    2014-11-04

    We show by explicit computations that there is a superficial inconsistency between the conventional first law of black hole thermodynamics and Bekenstein-Hawking area law for three types of regular black holes. The corrected form of the first law for these regular black holes is given. The derivation relies on the general structure of the energy-momentum tensor of the matter fields. When the black hole mass parameter $M$ is included in the energy-momentum tensor, the conventional form of the first law should be modified with an extra factor. In this case, the black hole mass $M$ can no longer be considered as the internal energy of the regular black holes.

  6. Forest products markets badly hit by the crisis but use of wood energy on the rise -UNECE/FAO http://www.portofentry.com/site/root/resources/industry_news/8067.html[10/1/2009 8:21:58 AM

    E-Print Network [OSTI]

    UNECE region is the world's largest producer (60% worldwide), consumer (57%), exporter (77%) and importer (70%) of wood and paper products (imports and exports include within-region trade). From record smaller thus far but Russia's negative trade balance in paper products continued to escalate (imports

  7. Sources of large wood in the main stem of a fourth-order watershed in coastal Oregon1

    E-Print Network [OSTI]

    Sources of large wood in the main stem of a fourth-order watershed in coastal Oregon1 Gordon H. Reeves, Kelly M. Burnett, and Edward V. McGarry Abstract: We compared the contribution of large wood from different sources and wood distributions among channel zones of influence in a relatively pristine fourth

  8. Dynamics of large wood in an eastern U.S. mountain stream Dana R. Warren *, Clifford E. Kraft

    E-Print Network [OSTI]

    Kraft, Clifford E.

    Dynamics of large wood in an eastern U.S. mountain stream Dana R. Warren *, Clifford E. Kraft recent studies have documented the importance of large woody debris (large wood) in streams of northeastern North America. Large wood retains sediment and organic matter (Thompson, 1995), promotes habitat

  9. AN ABSTRACT OF THE THESIS OF Pranueng Limkatanyoo for the degree of Master of Science in Wood Science

    E-Print Network [OSTI]

    Gupta, Rakesh

    AN ABSTRACT OF THE THESIS OF Pranueng Limkatanyoo for the degree of Master of Science in Wood Science presented on December 15, 2003. Title: System Behavior of Three-Dimensional Wood Truss Assemblies Limkatanyoo December 15, 2003 All Rights Reserved #12;System Behavior of Three-Dimensional Wood Truss

  10. USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 71 Modeling the Delivery of Large Wood to

    E-Print Network [OSTI]

    USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 71 Modeling the Delivery of Large Wood forest structure and predict the delivery of wood to over 55 stream kilometers in a 28-square kilometer = 0.45). The model predicted that 83 percent of wood delivered to streams originated within 20 meters

  11. On the origin of long secondary periods in semiregular variables E.A. Olivier and P.R. Wood

    E-Print Network [OSTI]

    Wood, Peter

    On the origin of long secondary periods in semi­regular variables E.A. Olivier and P.R. Wood examples of light #12; -- 2 -- curves. Recently, Wood et al. (1999), henceforth W99, studied a group of red companions and episodic dust ejection (see W99 and Wood 2000a). There is some evidence in favour of each

  12. Effects of wood on debris flow runout in small mountain Stephen T. Lancaster and Shannon K. Hayes

    E-Print Network [OSTI]

    Effects of wood on debris flow runout in small mountain watersheds Stephen T. Lancaster and Shannon typically been viewed as two-phase mixtures of sediment and water, but in forested mountain landscapes, wood behavior are poorly understood. To evaluate whether wood can have a significant effect on debris flow

  13. Performance assessment of wood, metal and composite baseball bats Mahesh M. Shenoy, Lloyd V. Smith *, John T. Axtell

    E-Print Network [OSTI]

    Smith, Lloyd V.

    Performance assessment of wood, metal and composite baseball bats Mahesh M. Shenoy, Lloyd V. Smith the durability of wood bats and is shown to have a minimal eect on its hitting performance. The utility of using is real, as rookie players often require numerous seasons to adjust to wood bats. This adjust- ment has

  14. USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 535 Regional Patterns of Dead Wood in

    E-Print Network [OSTI]

    USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 535 Regional Patterns of Dead Wood regional patterns of variation in dead wood across 20 million ha of upland forests of all ownerships in Oregon and Washington, based on an analysis of data on snags and down wood collected on over 16,000 field

  15. AN ABSTRACT OF THE THESIS OF Michael C. Lewis for the degree of Master of Science in Wood Science and

    E-Print Network [OSTI]

    Gupta, Rakesh

    #12;AN ABSTRACT OF THE THESIS OF Michael C. Lewis for the degree of Master of Science in Wood Science and Civil Engineering presented on June 12, 2008. Title: Performance of Wood Frame Wall with Thin Thomas H. Miller The overall goal of this study was to evaluate an alternative to traditional wood framed

  16. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation Into The Use of Glue Laminated Wood in Construction

    E-Print Network [OSTI]

    Into The Use of Glue Laminated Wood in Construction Regina Lok Yun So James Wilkie Thai Nguyen Szymon Brykajlo Investigation Into The Use of Glue Laminated Wood in Construction by Regina Lok Yun So James Wilkie Thai Nguyen is a triple bottom line assessment off use of glued laminated wood (glulam) in construction. Its purpose

  17. USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 649 Snags and Down Wood in the Interior

    E-Print Network [OSTI]

    USDA Forest Service Gen. Tech. Rep. PSW-GTR-181. 2002. 649 Snags and Down Wood in the Interior and Rebecca A. Gravenmier5 Abstract Snags and down wood are major ecosystem and wildlife habitat components Advisory Group of the Interior Columbia Basin Ecosystem Management Project modeled snag and down wood

  18. Metal Bioavailability and Speciation in a Wetland Tailings Repository Amended with Biosolids Compost, Wood Ash, and Sulfate

    E-Print Network [OSTI]

    Brown, Sally

    Compost, Wood Ash, and Sulfate Pam S. DeVolder, Sally L. Brown,* Dean Hesterberg, and Kumi Pandya ABSTRACT tundra swans surface amendments: (i) biosolids compost plus wood ash, (ii) and other animals found in the area have tested positive compost wood ash a low SO2 4 addition as K2SO4, and (iii) for Pb poisoning

  19. Comparing quantum black holes and naked singularities

    E-Print Network [OSTI]

    T. P. Singh

    2000-12-21

    There are models of gravitational collapse in classical general relativity which admit the formation of naked singularities as well as black holes. These include fluid models as well as models with scalar fields as matter. Even if fluid models were to be regarded as unphysical in their matter content, the remaining class of models (based on scalar fields) generically admit the formation of visible regions of finite but arbitrarily high curvature. Hence it is of interest to ask, from the point of view of astrophysics, as to what a stellar collapse leading to a naked singularity (or to a visible region of very high curvature) will look like, to a far away observer. The emission of energy during such a process may be divided into three phases - (i) the classical phase, during which matter and gravity can both be treated according to the laws of classical physics, (ii) the semiclassical phase, when gravity is treated classically but matter behaves as a quantum field, and (iii) the quantum gravitational phase. In this review, we first give a summary of the status of naked singularities in classical relativity, and then report some recent results comparing the semiclassical phase of black holes with the semiclassical phase of spherical collapse leading to a naked singularity. In particular, we ask how the quantum particle creation during the collapse leading to a naked singularity compares with the Hawking radiation from a star collapsing to form a black hole. It turns out that there is a fundamental difference between the two cases. A spherical naked star emits only about one Planck energy during its semiclassical phase, and the further evolution can only be determined by the laws of quantum gravity. This contrasts with the semiclassical evaporation of a black hole.

  20. Lagrangian perfect fluids and black hole mechanics

    E-Print Network [OSTI]

    Vivek Iyer

    1996-10-15

    The first law of black hole mechanics (in the form derived by Wald), is expressed in terms of integrals over surfaces, at the horizon and spatial infinity, of a stationary, axisymmetric black hole, in a diffeomorphism invariant Lagrangian theory of gravity. The original statement of the first law given by Bardeen, Carter and Hawking for an Einstein-perfect fluid system contained, in addition, volume integrals of the fluid fields, over a spacelike slice stretching between these two surfaces. When applied to the Einstein-perfect fluid system, however, Wald's methods yield restricted results. The reason is that the fluid fields in the Lagrangian of a gravitating perfect fluid are typically nonstationary. We therefore first derive a first law-like relation for an arbitrary Lagrangian metric theory of gravity coupled to arbitrary Lagrangian matter fields, requiring only that the metric field be stationary. This relation includes a volume integral of matter fields over a spacelike slice between the black hole horizon and spatial infinity, and reduces to the first law originally derived by Bardeen, Carter and Hawking when the theory is general relativity coupled to a perfect fluid. We also consider a specific Lagrangian formulation for an isentropic perfect fluid given by Carter, and directly apply Wald's analysis. The resulting first law contains only surface integrals at the black hole horizon and spatial infinity, but this relation is much more restrictive in its allowed fluid configurations and perturbations than that given by Bardeen, Carter and Hawking. In the Appendix, we use the symplectic structure of the Einstein-perfect fluid system to derive a conserved current for perturbations of this system: this current reduces to one derived ab initio for this system by Chandrasekhar and Ferrari.

  1. Strings, higher curvature corrections, and black holes

    E-Print Network [OSTI]

    Thomas Mohaupt

    2005-12-05

    We review old and recent results on subleading contributions to black hole entropy in string theory.

  2. Physics: the big black box Mirror conjecture

    E-Print Network [OSTI]

    Cavalieri, Renzo

    Physics: the big black box Math Mirror conjecture A look into the mirror (I) an overview of Mirror Symmetry #12;Physics: the big black box Math Mirror conjecture Outline 1 Physics: the big black box 2 Math Symmetry #12;Physics: the big black box Math Mirror conjecture A slogan Mirror Symmetry is a correspondence

  3. Environmental-performance research priorities: Wood products. Final report

    SciTech Connect (OSTI)

    NONE

    1998-01-15

    This report describes a research plan to establish environmental, energy, and economic performance measures for renewable building materials, and to identify management and technology alternatives to improve environmental performance in a cost-effective manner. The research plan is designed to: (1) collect environmental and economic data on all life-cycle stages of the materials, (2) ensure that the data follows consistent definitions and collection procedures, and (3) develop analytical procedures for life-cycle analysis to address environmental performance questions. The research will be subdivided into a number of individual project modules. The five processing stages of wood used to organize the research plan are: (1) resource management and harvesting; (2) processing; (3) design and construction of structures; (4) use, maintenance, and disposal; and (5) waste recycling. Individual research module descriptions are provided in the report, as well as assessment techniques, research standards and protocol, and research management. 13 refs., 5 figs., 3 tabs.

  4. Ecological objectives can be achieved with wood-derived bioenergy

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

    Dale, Virginia H.; Kline, Keith L.; Marland, Gregg; Miner, Reid A.

    2015-08-01

    Renewable, biomass-based energy options can reduce the climate impacts of fossil fuels. However, calculating the effects of wood-derived bioenergy on greenhouse gases (GHGs), and thus on climate, is complicated (Miner et al. 2015). To clarify concerns and options about bioenergy, in November 2014, the US Environmental Protection Agency (EPA) produced a second draft of its Framework for Assessing Biogenic CO2 Emissions fromStationary Sources (http://1.usa.gov/1dikgHq), which considers the latest scientific information and input from stakeholders. In addition, the EPA is expected to make decisions soon about the use of woody biomass under the Clean Power Plan, which sets targets for carbonmore »pollution from power plants.« less

  5. Fusion-fission reactions with modified Woods-Saxon potential

    E-Print Network [OSTI]

    Ning Wang; Kai Zhao; Werner Scheid; Xizhen Wu

    2007-12-15

    A modified Woods-Saxon potential model is proposed for a unified description of the entrance channel fusion barrier and the fission barrier of fusion-fission reactions based on the Skyrme energy-density functional approach. The fusion excitation functions of 120 reactions have been systematically studied. The fusion (capture) cross sections are well described with the calculated potential and an empirical barrier distribution. Incorporating a statistical model (HIVAP code) for describing the decay of the compound nucleus, the evaporation residue (and fission) cross sections of 51 fusion-fission reactions have been systematically investigated. Optimal values of some key parameters of the HIVAP code are obtained based on the experimental data of these reactions. The experimental data are reasonably well reproduced by the calculated results. The upper and lower confidence limits of the systematic errors of the calculated results are given.

  6. The genotoxic contribution of wood smoke to indoor respirable suspended particles

    SciTech Connect (OSTI)

    Boone, P.M. (John B. Pierce Foundation Laboratory, New Haven, CT (USA)); Rossman, T.G. (New York Univ. Medical Center, New York (USA)); Daisey, J.M. (Lawrence Berkeley Laboratory, CA (USA))

    1989-01-01

    The effect of wood burning stoves on the genotoxicity of indoor respirable organic matter was investigated for four homes during the winter and spring of 1986. Paired samples, one collected when the stove was not used and one when wood was burned, were extracted with dichloromethane and acetone. Aliquots of the dichloromethane extracts were analyzed with and without metabolic activation using the Microscreen bioassay. The Microscreen is a rapid, sensitive bioassay which measures a broad genotoxic endpoint, {lambda}-prophage induction. Per nanogram of organic material, wood smoke proved to be a major source of indirect (observed with metabolic activation) but not direct genotoxins in homes. The increase in indirect genotoxicity for extracts from aerosol containing wood smoke is probably due to higher concentrations of polycyclic aromatic hydrocarbons in the wood smoke aerosol as well as other unidentified classes. The direct genotoxicity observed for extracts of aerosol not containing wood smoke decreased with metabolic activation. This direct genotoxicity may be related to cooking activities in the homes. The trends in genotoxicity observed per nanogram of organic material are more pronounced when expressed per m{sup 3} of air due to the higher percentage of extractable material in aerosol containing wood smoke.

  7. Potential role of lignin in tomorrow's wood utilization technologies

    SciTech Connect (OSTI)

    Glasser, W.G.

    1981-03-01

    Low-grade timber supplies and wood processing residues are presently converted into paper products, used for fuel, or remain totally unused. Competition for this resource will continue to mount, particularly when manufacturers of chemicals and liquid fuels enter the market with new technologies now under development. The type of technology that concentrates on depolymerization of carbohydrates will generate large quantities of lignin-rich residues. The potential of these lignins to contribute to the economic feasibility of new chemical wood process technologies may involve degradative depolymerization to phenols and benzene, or polymer conversion into a wide variety of dispersants, binders, reinforcing and antioxidizing agents, etc. Where lignin's fuel value lies around 3 to 4 cents/lb. (fall of 1979), its raw material value for phenol is reported to be almost 5 cents/lb., and the value of the polymeric materials is estimated to be between 6 and 20 cents/lb. At the lower end of this range of raw material values are ligninsulfonates, which contribute nearly 98 percent to the approximately 1.5 billion lb./yr. U.S. market for lignin products. Kraft lignins are located at the opposite end of this range. Novel bioconversion-type lignins are expected to be more similar in structure and properties to kraft than to sulfite lignins. Whereas application of the dispersant properties of ligninsulfonates in tertiary oil recovery operations is expected to constitute the most significant use of lignin in terms of volume, adhesive and resin applications hold the greatest promise in terms of value. Both utilization schemes seem to require pretreatments in the form of either polymeric fractionation or chemical modification. Potential savings from the use of polymeric lignins in material systems are great.

  8. Black hole horizons Eric Gourgoulhon

    E-Print Network [OSTI]

    Gourgoulhon, Eric

    on a black hole: up to 42% of the mass-energy mc2 of accreted matter ! NB: thermonuclear reactions release: a very deep gravitational potential well Release of potential gravitational energy by accretion

  9. Thermodynamics of regular black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Yong-Wan Kim; Young-Jai Park

    2008-09-21

    We investigate thermodynamics for a magnetically charged regular black hole (MCRBH), which comes from the action of general relativity and nonlinear electromagnetics, comparing with the Reissner-Norstr\\"om (RN) black hole in both four and two dimensions after dimensional reduction. We find that there is no thermodynamic difference between the regular and RN black holes for a fixed charge $Q$ in both dimensions. This means that the condition for either singularity or regularity at the origin of coordinate does not affect the thermodynamics of black hole. Furthermore, we describe the near-horizon AdS$_2$ thermodynamics of the MCRBH with the connection of the Jackiw-Teitelboim theory. We also identify the near-horizon entropy as the statistical entropy by using the AdS$_2$/CFT$_1$ correspondence.

  10. Black Holes and Nuclear Dynamics

    E-Print Network [OSTI]

    David Merritt

    2006-02-17

    Supermassive black holes inhabit galactic nuclei, and their presence influences in crucial ways the evolution of the stellar distribution. The low-density cores observed in bright galaxies are probably a result of black hole infall, while steep density cusps like those at the Galactic center are a result of energy exchange between stars moving in the gravitational field of the single black hole. Loss-cone dynamics are substantially more complex in galactic nuclei than in collisionally-relaxed systems like globular clusters due to the wider variety of possible geometries and orbital populations. The rate of star-black hole interactions has begun to be constrained through observations of energetic events associated with stellar tidal disruptions.

  11. Black Boundary Lines: Race, Class and Gender among Black Undergraduate Students

    E-Print Network [OSTI]

    Morales, Erica

    2012-01-01

    C. 1994. Behind the Mule: Race and Class in African AmericanHarlemworld: Doing Race and Class in Contemporary BlackBlue-Chip Black: Race, Class and Status in the New Black

  12. Effect of acetate and other cell wall components on enzymatic hydrolysis of aspen wood 

    E-Print Network [OSTI]

    Kong, Fanran

    1990-01-01

    OH are much cheaper and safer. Furthermore, the procedure with dilute alkali is simpler and time of treatment is much shorter. Finally, the Klason lignin loss of aspen wood with 0. 1N KOH and with ratio of 12. 5 ml solution to I g wood is undetected...EFFECT OF ACETATE AND OTHER CELL WALL COMPONENTS ON ENZYMATIC HYDROLYSIS OF ASPEN WOOD A Thesis by FANRAN KONG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...

  13. Accretion Processes On a Black Hole

    E-Print Network [OSTI]

    Sandip K. Chakrabarti

    1996-05-03

    We describe astrophysical processes around a black hole keeping primarily the physics of accretion in mind. In Section 1, we briefly discuss the formation, evolution and detection of black holes. We also discuss the difference of flow properties around a black hole and a Newtonian star. In Section 2, we present past and present developments in the study of spherically accreting flows. We study the properties of Bondi flow with and without radiative transfer. In the presence of significant angular momentum, which is especially true in a binary system, matter will be accreted as a thin Keplerian disk. In Section 3, we discuss a large number of models of these disks including the more popular standard disk model. We present magnetized disk models as well. Since the angular momentum is high in these systems, rotational motion is the most dominant component compared to the radial or the vertical velocity components. In Section 4, we study thick disk models which are of low angular momentum but still have no significant radial motion. The accretion rates could be very high causing the flow to become radiation dominated and the disk to be geometrically thick. For low accretion rates, ion pressure supported disks are formed. In Section 5, we extensively discuss the properties of transonic flows which has with sub-Keplerian angular momentum. In the absence of shock discontinuities, these sub-Keplerian flows are basically advecting, similar to Bondi flows, close to the black holes, though far away they match Keplerian or sub-Keplerian disks. In presence of shocks, the post-shock flow becomes rotation dominated similar to thick disks. In Section 6, we present results of important numerical simulations of accretion flows. Significant results from the studies of evolution of viscous transonic flows are reported. In Section 7, we discuss some observational evidences of the black hole accretion. We also present a detailed model of a generalized accretion disk and present its spectra and compare with observations. In Section 8, we summarize the review and make concluding remarks.

  14. Feasibility study of wood-fired cogeneration at a Wood Products Industrial Park, Belington, WV. Phase II

    SciTech Connect (OSTI)

    Vasenda, S.K.; Hassler, C.C.

    1992-06-01

    Customarily, electricity is generated in a utility power plant while thermal energy is generated in a heating/cooling plant; the electricity produced at the power plant is transmitted to the heating/cooling plant to power equipments. These two separate systems waste vast amounts of heat and result in individual efficiencies of about 35%. Cogeneration is the sequential production of power (electrical or mechanical) and thermal energy (process steam, hot/chilled water) from a single power source; the reject heat of one process issued as input into the subsequent process. Cogeneration increases the efficiency of these stand-alone systems by producing these two products sequentially at one location using a small additional amount of fuel, rendering the system efficiency greater than 70%. This report discusses cogeneration technologies as applied to wood fuel fired system.

  15. Constraining Black Hole Spin Via X-ray Spectroscopy

    E-Print Network [OSTI]

    Laura W. Brenneman; Christopher S. Reynolds

    2006-08-23

    We present an analysis of the observed broad iron line feature and putative warm absorber in the long 2001 XMM-Newton observation of the Seyfert-1.2 galaxy MCG-6-30-15. The new "kerrdisk" model we have designed for simulating line emission from accretion disk systems allows black hole spin to be a free parameter in the fit, enabling the user to formally constrain the angular momentum of a black hole, among other physical parameters of the system. In an important extension of previous work, we derive constraints on the black hole spin in MCG-6-30-15 using a self-consistent model for X-ray reflection from the surface of the accretion disk while simultaneously accounting for absorption by dusty photoionized material along the line of sight (the warm absorber). Even including these complications, the XMM-Newton/EPIC-pn data require extreme relativistic broadening of the X-ray reflection spectrum; assuming no emission from within the radius of marginal stability, we derive a formal constraint on the dimensionless black hole spin parameter of a > 0.987 at 90% confidence. The principal unmodeled effect that can significantly reduce the inferred black hole spin is powerful emission from within the radius of marginal stability. Although significant theoretical developments are required to fully understand this region, we argue that the need for a rapidly spinning black hole is robust to physically plausible levels of emission from within the radius of marginal stability. In particular, we show that a non-rotating black hole is strongly ruled out.

  16. Fishing in Black Holes

    E-Print Network [OSTI]

    A. Brotas

    2006-09-01

    The coordinate system $(\\bar{x},\\bar{t})$ defined by $r = 2m + K\\bar{x}- c K \\bar{t}$ and $t=\\bar{x}/cK - 1 /cK \\int_{r_a}^r (1- 2m/r + K^2)^{1/2} (1 - 2m/r)^{-1}dr$ allow us to write the Schwarzschild metric in the form: \\[ds^2=c^2 d\\bar{t}^2 + (W^2/K^2 - 2W/K) d\\bar{x}^2 + 2c (1 + W/K) d\\bar{x}d\\bar{t} - r^2 (d\\theta^2 + cos^2\\theta d\\phi^2)\\] with $W=(1 - 2m/r + K^2)^{1/2}$, in which the coefficients' pathologies are moved to $r_K = 2m/(1+K^2)$. This new coordinate system is used to study the entrance into a black hole of a rigid line (a line in which the shock waves propagate with velocity c).

  17. Extremal Limits of Rotating Black Holes

    E-Print Network [OSTI]

    Laura Andrianopoli; Riccardo D'Auria; Antonio Gallerati; Mario Trigiante

    2013-05-30

    We consider non-extremal, stationary, axion-dilaton solutions to ungauged symmetric supergravity models, obtained by Harrison transformations of the non-extremal Kerr solution. We define a general algebraic procedure, which can be viewed as an Inonu-Wigner contraction of the Noether charge matrix associated with the effective D=3 sigma-model description of the solution, yielding, through different singular limits, the known BPS and non-BPS extremal black holes (which include the under-rotating non-BPS one). The non-extremal black hole can thus be thought of as "interpolating" among these limit-solutions. The algebraic procedure that we define generalizes the known Rasheed-Larsen limit which yielded, in the Kaluza-Klein theory, the first instance of under-rotating extremal solution. As an example of our general result, we discuss in detail the non-extremal solution in the T^3-model, with either (q_0, p^1) or (p^0, q_1) charges switched on, and its singular limits. Such solutions, computed in D=3 through the solution-generating technique, is completely described in terms of D=4 fields, which include the fully integrated vector fields.

  18. Aspects of Accretion Processes On a Rotating Black Hole

    E-Print Network [OSTI]

    Sandip K. Chakrabarti

    1996-11-10

    We describe the most general nature of accretion and wind flows around a compact object and emphasize on the properties which are special to black hole accretion. The angular momentum distribution in the most general solution is far from Keplerian, and the non-Keplerian disks can include standing shock waves. We also present fully time dependent numerical simulation results to show that they agree with these analytical solutions. We describe the spectral properties of these accretion disks and show that the soft and hard states of the black hole candidates could be explained by the change of the accretion rate of the disk. We present fits of the observational data to demonstrate the presence of sub-Keplerian flows around black holes.

  19. Satellite observations of thought experiments close to a black hole

    E-Print Network [OSTI]

    S. K. Chakrabarti

    2000-07-18

    Since black holes are `black', methods of their identification must necessarily be indirect. Due to very special boundary condition on the horizon, the advective flow behaves in a particular way, which includes formation of centrifugal pressure dominated boundary layer or CENBOL where much of the infall energy is released and outflows are generated. The observational aspects of black holes must depend on the steady and time-dependent properties of this boundary layer. Several observational results are written down in this review which seem to support the predictions of thought experiments based on this advective accretion/outflow model. In future, when gravitational waves are detected, some other predictions of this model could be tested as well.

  20. Can reducing black carbon emissions counteract global warming?

    SciTech Connect (OSTI)

    Tami C. Bond; Haolin Sun

    2005-08-15

    Field measurements and model results have recently shown that aerosols may have important climatic impacts. One line of inquiry has investigated whether reducing climate-warming soot or black carbon aerosol emissions can form a viable component of mitigating global warming. Black carbon is produced by poor combustion, from our example hard coal cooking fires for and industrial pulverized coal boilers. The authors review and acknowledge scientific arguments against considering aerosols and greenhouse gases in a common framework, including the differences in the physical mechanisms of climate change and relevant time scales. It is argued that such a joint consideration is consistent with the language of the United Nations Framework Convention on Climate Change. Results from published climate-modeling studies are synthesized to obtain a global warming potential for black carbon relative to that of CO{sub 2} (680 on a 100 year basis). This calculation enables a discussion of cost-effectiveness for mitigating the largest sources of black carbon. It is found that many emission reductions are either expensive or difficult to enact when compared with greenhouse gases, particularly in Annex I countries. Finally, a role for black carbon in climate mitigation strategies is proposed that is consistent with the apparently conflicting arguments raised during the discussion. Addressing these emissions is a promising way to reduce climatic interference primarily for nations that have not yet agreed to address greenhouse gas emissions and provides the potential for a parallel climate agreement. 31 refs., 3 figs., 1 tab.

  1. The mass function of high redshift seed black holes

    E-Print Network [OSTI]

    Lodato, G; Lodato, Giuseppe; Natarajan, Priyamvada

    2007-01-01

    In this paper we derive the mass function of seed black holes that result from the central mass concentrated via disc accretion in collapsed haloes at redshift $z\\approx 15$. Using standard arguments including stability, we show that these pre-galactic discs can assemble a significant mass concentration in the inner regions, providing fuel for the formation and initial growth of super-massive black holes. Assuming that these mass concentrations do result in central seed black holes, we determine the mass distribution of these seeds as a function of key halo properties. The seed mass distribution determined here turns out to be asymmetric and skewed to higher masses. Starting with these initial seeds, building up to $10^9$ solar masses by $z = 6$ to power the bright quasars is not a problem in the standard LCDM cosmogony. These seed black holes in gas rich environments are likely to grow into the supermassive black holes at later times via mergers and accretion. Gas accretion onto these seeds at high redshift ...

  2. Ground penetrating radar characterization of wood piles and the water table in Back Bay, Boston

    E-Print Network [OSTI]

    LeFrançois, Suzanne O'Neil, 1980-

    2003-01-01

    Ground penetrating radar (GPR) surveys are performed to determine the depth to the water table and the tops of wood piles beneath a residential structure at 122 Beacon Street in Back Bay, Boston. The area of Boston known ...

  3. POLYPROPYLENE COMPOSITES FILLED WITH STEAM-EXPLODED WOOD FIBERS FROM BEETLE-KILLED LOBLOLLY PINE

    E-Print Network [OSTI]

    Wang, Siqun

    -soluble materials and were mainly composed of fiber fragments with lignin droplets on their surfaces. Composites serve local markets with value-added products (Forest Prod- ucts Laboratory 2000). Wood

  4. Genomics of wood-degrading fungi Ohm, Robin A.; Riley, Robert...

    Office of Scientific and Technical Information (OSTI)

    Genomics of wood-degrading fungi Ohm, Robin A.; Riley, Robert; Salamov, Asaf; Min, Byoungnam; Choi, In-Geol; Grigoriev, Igor V. Not Available Elsevier None USDOE United States...

  5. Residential Bulk-Fed Wood-Pellet Central Boilers and Furnace Rebate Program

    Broader source: Energy.gov [DOE]

    The New Hampshire Public Utilities Commission (PUC) is offering rebates of 30% of the installed cost of qualifying new residential bulk-fed, wood-pellet central heating boilers or furnaces. The...

  6. Accuracy vs. Performance in Parallel Simulation of Interconnection Networks Douglas C. Burger and David A. Wood

    E-Print Network [OSTI]

    Wood, David A.

    and David A. Wood Computer Sciences Department University of Wisconsin-Madison 1210 West Dayton Street of stud- ies where the trade-off between simulation speed and accuracy is less clear: application

  7. Analytical Modeling of Wood Frame Shear Walls Subjected to Vertical Load 

    E-Print Network [OSTI]

    Nguyendinh, Hai

    2011-08-08

    A nonlinear automated parameter fitted analytical model that numerically predicts the load-displacement response of wood frame shear walls subjected to static monotonic loading with and without vertical load is presented. This analytical model...

  8. Thermal properties of structural details in wood frame homes : analysis and recommendations

    E-Print Network [OSTI]

    Graybeal, Alexander Kung

    2010-01-01

    The wood platform frame home is the dominant design in the United States when it comes to single family housing. Introduced during the mid-nineteenth century, the scheme is a cheap, fast, and proven design that takes ...

  9. Multi-functional supramolecular polymer networks as next generation consolidants for archaeological wood conservation

    E-Print Network [OSTI]

    Walsh, Zarah; Jane?ek, Emma-Rose; Hodgkinson, James T.; Sedlmair, Julia; Koutsioubas, Alexandros; Spring, David R.; Welch, Martin; Hirschmugl, Carol J.; Toprakcioglu, Chris; Nitschke, Jonathan R.; Jones, Mark; Scherman, Oren A.

    2014-11-10

    CG, Nilsson T, Daniel G (1999) Microbial decay of waterlogged archaeological wood found in Sweden applicable to archaeology and conservation. Int Biodeterior Biodegrad 43:63-73. 5. Almkvist G, Persson I (2008) Degradation of polyethylene glycol...

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

    SciTech Connect (OSTI)

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

    1984-04-01

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

  11. Utilization of artificial nesting cavities by wood ducks (Aix sponsa) in central Texas 

    E-Print Network [OSTI]

    Labuda, Stephen Edward

    1977-01-01

    UTILIZATION OF ARTIFICIAL NESTING CAVITIES BY WOOD DUCKS (Aix ~sonsa) IN CENTRAL TEXAS A Thesis by STEPHEN EDWARD LABUDA, JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1977 Major Subject: Wildlife and Fisheries Sciences UTILIZATION OF ARTIFICIAL NESTING CAVITIES BY WOOD DUCKS (Aix ~sonsa) IN CENTRAL TEXAS A Thesis by STEPHEN EDWARD LABUDA, JR. Approved as to style and content by: Chairman...

  12. Effects of Framing on the Thermal Performance of Wood and Steel-Framed Walls 

    E-Print Network [OSTI]

    Kosny, J.; Yarbrough, D. W.; Childs, P.; Mohiuddin, S. A.

    2006-01-01

    ON THE THERMAL PERFORMANCE OF WOOD AND STEEL-FRAMED WALLS JAN KOSNY, PhD DAVID W. YARBROUGH PhD, PE PHILLIP CHILDS Senior research engineer Senior research engineer Research engineer Oak Ridge National Laboratory, Oak Ridge, TN SYED AZAM MOHIUDDIN...% framing factor for US homes. This paper reports, experimental work and numerical analysis of the thermal performance of various configurations of structural components in wood and steel-framed walls. In addition, the consequences of installation...

  13. System Modeling of ORNL s 20 MW(t) Wood-fired Gasifying Boiler

    SciTech Connect (OSTI)

    Daw, C Stuart [ORNL; FINNEY, Charles E A [ORNL; Wiggins, Gavin [ORNL; Hao, Ye [ORNL

    2010-01-01

    We present an overview of the new 20 MW(t) wood-fired steam plant currently under construction by Johnson Controls, Inc. at the Oak Ridge National Laboratory in Tennessee. The new plant will utilize a low-temperature air-blown gasifier system developed by the Nexterra Systems Corporation to generate low-heating value syngas (producer gas), which will then be burned in a staged combustion chamber to produce heat for the boiler. This is considered a showcase project for demonstrating the benefits of clean, bio-based energy, and thus there is considerable interest in monitoring and modeling the energy efficiency and environmental footprint of this technology relative to conventional steam generation with petroleum-based fuels. In preparation for system startup in 2012, we are developing steady-state and dynamic models of the major process components, including the gasifiers and combustor. These tools are intended to assist in tracking and optimizing system performance and for carrying out future conceptual studies of process changes that might improve the overall energy efficiency and sustainability. In this paper we describe the status of our steady-state gasifier and combustor models and illustrate preliminary results from limited parametric studies.

  14. Black hole mimickers: Regular versus singular behavior

    SciTech Connect (OSTI)

    Lemos, Jose P. S.; Zaslavskii, Oleg B.

    2008-07-15

    Black hole mimickers are possible alternatives to black holes; they would look observationally almost like black holes but would have no horizon. The properties in the near-horizon region where gravity is strong can be quite different for both types of objects, but at infinity it could be difficult to discern black holes from their mimickers. To disentangle this possible confusion, we examine the near-horizon properties, and their connection with far away asymptotic properties, of some candidates to black mimickers. We study spherically symmetric uncharged or charged but nonextremal objects, as well as spherically symmetric charged extremal objects. Within the uncharged or charged but nonextremal black hole mimickers, we study nonextremal {epsilon}-wormholes on the threshold of the formation of an event horizon, of which a subclass are called black foils, and gravastars. Within the charged extremal black hole mimickers we study extremal {epsilon}-wormholes on the threshold of the formation of an event horizon, quasi-black holes, and wormholes on the basis of quasi-black holes from Bonnor stars. We elucidate whether or not the objects belonging to these two classes remain regular in the near-horizon limit. The requirement of full regularity, i.e., finite curvature and absence of naked behavior, up to an arbitrary neighborhood of the gravitational radius of the object enables one to rule out potential mimickers in most of the cases. A list ranking the best black hole mimickers up to the worst, both nonextremal and extremal, is as follows: wormholes on the basis of extremal black holes or on the basis of quasi-black holes, quasi-black holes, wormholes on the basis of nonextremal black holes (black foils), and gravastars. Since in observational astrophysics it is difficult to find extremal configurations (the best mimickers in the ranking), whereas nonextremal configurations are really bad mimickers, the task of distinguishing black holes from their mimickers seems to be less difficult than one could think of it.

  15. International black tea market integration and price discovery 

    E-Print Network [OSTI]

    Dharmasena, Kalu Arachchillage Senarath Dhananjaya Bandara

    2004-09-30

    In this thesis we study three basic issues related to international black tea markets: Are black tea markets integrated? Where is the price of black tea discovered? Are there leaders and followers in black tea markets? We ...

  16. Energy on black hole spacetimes

    E-Print Network [OSTI]

    Alejandro Corichi

    2012-07-18

    We consider the issue of defining energy for test particles on a background black hole spacetime. We revisit the different notions of energy as defined by different observers. The existence of a time-like isometry allows for the notion of a total conserved energy to be well defined, and subsequently the notion of a gravitational potential energy is also meaningful. We then consider the situation in which the test particle is adsorbed by the black hole, and analyze the energetics in detail. In particular, we show that the notion of horizon energy es defined by the isolated horizons formalism provides a satisfactory notion of energy compatible with the particle's conserved energy. As another example, we comment a recent proposal to define energy of the black hole as seen by an observer at rest. This account is intended to be pedagogical and is aimed at the level of and as a complement to the standard textbooks on the subject.

  17. Heat Engine of black holes

    E-Print Network [OSTI]

    J. Sadeghi; Kh. Jafarzade

    2015-06-23

    As we know, the cosmological constant in different theories of gravity acts as a thermodynamics variable. The cosmological constant exists in different actions of gravity and also appears in the solution of such theories. These lead to use the black hole as a heat engines. Also, there are two values for the cosmological constant as positive and negative values. The case of negative cosmological constant supplies a natural realization of these engines in terms of the field theory description of the fluids to which they are holographically dual. In this paper, we are going to define heat engines for two different black holes as Dyonic BH and Kerr BH. And also, we calculate maximum efficiency for two black holes.

  18. Charged rotating dilaton black strings

    SciTech Connect (OSTI)

    Dehghani, M.H.; Farhangkhah, N.

    2005-02-15

    In this paper we, first, present a class of charged rotating solutions in four-dimensional Einstein-Maxwell-dilaton gravity with zero and Liouville-type potentials. We find that these solutions can present a black hole/string with two regular horizons, an extreme black hole or a naked singularity provided the parameters of the solutions are chosen suitable. We also compute the conserved and thermodynamic quantities, and show that they satisfy the first law of thermodynamics. Second, we obtain the (n+1)-dimensional rotating solutions in Einstein-dilaton gravity with Liouville-type potential. We find that these solutions can present black branes, naked singularities or spacetimes with cosmological horizon if one chooses the parameters of the solutions correctly. Again, we find that the thermodynamic quantities of these solutions satisfy the first law of thermodynamics.

  19. Quantum Criticality and Black Holes

    ScienceCinema (OSTI)

    Sachdev, Subir [Harvard University, Cambridge, Massachusetts, United States

    2009-09-01

    I will describe the behavior of a variety of condensed matter systems in the vicinity of zero temperature quantum phase transitions. There is a remarkable analogy between the hydrodynamics of such systems and the quantum theory of black holes. I will show how insights from this analogy have shed light on recent experiments on the cuprate high temperature superconductors. Studies of new materials and trapped ultracold atoms are yielding new quantum phases, with novel forms of quantum entanglement. Some materials are of technological importance: e.g. high temperature superconductors. Exact solutions via black hole mapping have yielded first exact results for transport coefficients in interacting many-body systems, and were valuable in determining general structure of hydrodynamics. Theory of VBS order and Nernst effect in cuprates. Tabletop 'laboratories for the entire universe': quantum mechanics of black holes, quark-gluon plasma, neutrons stars, and big-bang physics.

  20. Black Holes and Galaxy Dynamics

    E-Print Network [OSTI]

    David Merritt

    1999-06-02

    The consequences of nuclear black holes for the structure and dynamics of stellar spheroids are reviewed. Slow growth of a black hole in a pre-existing core produces a steep power-law density profile similar to the cusps seen in faint elliptical galaxies. The weaker cusps in bright ellipticals may result from ejection of stars by a coalescing black-hole binary; there is marginal kinematical evidence for such a process having occurred in M87. Stellar orbits in a triaxial nucleus are mostly regular at radii where the gravitational force is dominated by the black hole; however the orbital shapes are not conducive to reinforcing the triaxial figure, hence nuclei are likely to be approximately axisymmetric. In triaxial potentials, a ``zone of chaos'' extends outward to a radius where the enclosed stellar mass is roughly 100 times the mass of the black hole; in this chaotic zone, no regular, box-like orbits exist. At larger radii, the phase space in triaxial potentials is complex, consisting of stochastic orbits as well as regular orbits associated with stable resonances. Figure rotation tends to increase the degree of stochasticity. Both test-particle integrations and N-body simulations suggest that a triaxial galaxy responds globally to the presence of a central mass concentration by evolving toward more axisymmetric shapes; the evolution occurs rapidly when the mass of the central object exceeds roughly 2% of the mass in stars. The lack of significant triaxiality in most early-type galaxies may be a consequence of orbital evolution induced by nuclear black holes.

  1. Radiation transport around Kerr black holes

    E-Print Network [OSTI]

    Schnittman, Jeremy David

    2005-01-01

    This Thesis describes the basic framework of a relativistic ray-tracing code for analyzing accretion processes around Kerr black holes. We begin in Chapter 1 with a brief historical summary of the major advances in black ...

  2. Does phantom energy produce black hole?

    E-Print Network [OSTI]

    F. Rahaman; A. Ghosh; M. Kalam

    2006-12-23

    We have found an exact solution of spherically symmetrical Einstein equations describing a black hole with a special type phantom energy source. It is surprising to note that our solution is analogous to Reissner-Nordstr\\"{o}m black hole.

  3. Introduction to Black Hole Evaporation

    E-Print Network [OSTI]

    Pierre-Henry Lambert

    2014-01-16

    These lecture notes are an elementary and pedagogical introduction to the black hole evaporation, based on a lecture given by the author at the Ninth Modave Summer School in Mathematical Physics and are intended for PhD students. First, quantum field theory in curved spacetime is studied and tools needed for the remaining of the course are introduced. Then, quantum field theory in Rindler spacetime in 1+1 dimensions and in the spacetime of a spherically collapsing star are considered, leading to Unruh and Hawking effects, respectively. Finally, some consequences such as thermodynamics of black holes and information loss paradox are discussed.

  4. 4d neutral dilatonic black holes and (4+p) dimensional nondilatonic black p-branes

    E-Print Network [OSTI]

    J. R. Morris

    2000-01-11

    It is shown that, in contrast to the case of extreme 4d dilatonic black holes, 4d neutral dilatonic black holes with horizon singularities can not be interpreted as nonsingular nondilatonic black p-branes in (4+p) dimensions, regardless of the number of extra dimensions p. That is, extra dimensions do not remove naked singularities of 4d neutral dilatonic black holes.

  5. AdS and Lifshitz Black Holes in Conformal and Einstein-Weyl Gravities

    E-Print Network [OSTI]

    H. Lu; Y. Pang; C. N. Pope; J. Vazquez-Poritz

    2012-04-14

    We study black hole solutions in extended gravities with higher-order curvature terms, including conformal and Einstein-Weyl gravities. In addition to the usual AdS vacuum, the theories admit Lifshitz and Schr\\"odinger vacua. The AdS black hole in conformal gravity contains an additional parameter over and above the mass, which may be interpreted as a massive spin-2 hair. By considering the first law of thermodynamics, we find that it is necessary to introduce an associated additional intensive/extensive pair of thermodynamic quantities. We also obtain new Liftshitz black holes in conformal gravity and study their thermodynamics. We use a numerical approach to demonstrate that AdS black holes beyond the Schwarzschild-AdS solution exist in Einstein-Weyl gravity. We also demonstrate the existence of asymptotically Lifshitz black holes in Einstein-Weyl gravity. The Lifshitz black holes arise at the boundary of the parameter ranges for the AdS black holes. Outside the range, the solutions develop naked singularities. The asymptotically AdS and Lifshitz black holes provide an interesting phase transition, in the corresponding boundary field theory, from a relativistic Lorentzian system to a non-relativistic Lifshitz system.

  6. Classical and thermodynamic stability of black holes

    E-Print Network [OSTI]

    Ricardo Monteiro

    2010-06-28

    We consider the stability of black holes within both classical general relativity and the semiclassical thermodynamic description. In particular, we study linearised perturbations and their contribution to the gravitational partition function, addressing technical issues for charged (Reissner-Nordstrom) and rotating (Kerr-AdS) black holes. Exploring the connection between classical and thermodynamic stability, we find classical instabilities of Myers-Perry black holes and bifurcations to new black hole families.

  7. Will black holes eventually engulf the universe?

    E-Print Network [OSTI]

    Prado Martin-Moruno; Jose A. Jimenez Madrid; Pedro F. Gonzalez-Diaz

    2006-03-28

    The Babichev-Dokuchaev-Eroshenko model for the accretion of dark energy onto black holes has been extended to deal with black holes with non-static metrics. The possibility that for an asymptotic observer a black hole with large mass will rapidly increase and eventually engulf the Universe at a finite time in the future has been studied by using reasonable values for astronomical parameters. It is concluded that such a phenomenon is forbidden for all black holes in quintessential cosmological models.

  8. Hawking Emission and Black Hole Thermodynamics

    E-Print Network [OSTI]

    Don N. Page

    2006-12-18

    A brief review of Hawking radiation and black hole thermodynamics is given, based largely upon hep-th/0409024.

  9. BLACK HOLE FORAGING: FEEDBACK DRIVES FEEDING

    SciTech Connect (OSTI)

    Dehnen, Walter; King, Andrew, E-mail: wd11@leicester.ac.uk, E-mail: ark@astro.le.ac.uk [Theoretical Astrophysics Group, University of Leicester, Leicester LE1 7RH (United Kingdom)] [Theoretical Astrophysics Group, University of Leicester, Leicester LE1 7RH (United Kingdom)

    2013-11-10

    We suggest a new picture of supermassive black hole (SMBH) growth in galaxy centers. Momentum-driven feedback from an accreting hole gives significant orbital energy, but little angular momentum to the surrounding gas. Once central accretion drops, the feedback weakens and swept-up gas falls back toward the SMBH on near-parabolic orbits. These intersect near the black hole with partially opposed specific angular momenta, causing further infall and ultimately the formation of a small-scale accretion disk. The feeding rates into the disk typically exceed Eddington by factors of a few, growing the hole on the Salpeter timescale and stimulating further feedback. Natural consequences of this picture include (1) the formation and maintenance of a roughly toroidal distribution of obscuring matter near the hole; (2) random orientations of successive accretion disk episodes; (3) the possibility of rapid SMBH growth; (4) tidal disruption of stars and close binaries formed from infalling gas, resulting in visible flares and ejection of hypervelocity stars; (5) super-solar abundances of the matter accreting on to the SMBH; and (6) a lower central dark-matter density, and hence annihilation signal, than adiabatic SMBH growth implies. We also suggest a simple subgrid recipe for implementing this process in numerical simulations.

  10. INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; RADIATION

    Office of Scientific and Technical Information (OSTI)

    interval technical basis document Chiaro, P.J. Jr. 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; RADIATION DETECTORS; RADIATION MONITORS; DOSEMETERS;...

  11. Scattering by regular black holes: Planar massless scalar waves impinging upon a Bardeen black hole

    E-Print Network [OSTI]

    Macedo, Caio F B; Crispino, Luís C B

    2015-01-01

    Singularities are common features of general relativity black holes. However, within general relativity, one can construct black holes that present no singularities. These regular black hole solutions can be achieved by, for instance, relaxing one of the energy conditions on the stress energy tensor sourcing the black hole. Some regular black hole solutions were found in the context of non-linear electrodynamics, the Bardeen black hole being the first one proposed. In this paper, we consider a planar massless scalar wave scattered by a Bardeen black hole. We compare the scattering cross section computed using a partial-wave description with the classical geodesic scattering of a stream of null geodesics, as well as with the semi-classical glory approximation. We obtain that, for some values of the corresponding black hole charge, the scattering cross section of a Bardeen black hole has a similar interference pattern of a Reissner-Nordstr\\"om black hole.

  12. Scattering by regular black holes: Planar massless scalar waves impinging upon a Bardeen black hole

    E-Print Network [OSTI]

    Caio F. B. Macedo; Ednilton S. de Oliveira; Luís C. B. Crispino

    2015-06-26

    Singularities are common features of general relativity black holes. However, within general relativity, one can construct black holes that present no singularities. These regular black hole solutions can be achieved by, for instance, relaxing one of the energy conditions on the stress energy tensor sourcing the black hole. Some regular black hole solutions were found in the context of non-linear electrodynamics, the Bardeen black hole being the first one proposed. In this paper, we consider a planar massless scalar wave scattered by a Bardeen black hole. We compare the scattering cross section computed using a partial-wave description with the classical geodesic scattering of a stream of null geodesics, as well as with the semi-classical glory approximation. We obtain that, for some values of the corresponding black hole charge, the scattering cross section of a Bardeen black hole has a similar interference pattern of a Reissner-Nordstr\\"om black hole.

  13. New approaches to black holes Eric Gourgoulhon

    E-Print Network [OSTI]

    Gourgoulhon, Eric

    References Eric Gourgoulhon (LUTH) New approaches to black holes Okinawa Nat. Col. Tech., 17 Aug 2008 2 / 36 Gourgoulhon (LUTH) New approaches to black holes Okinawa Nat. Col. Tech., 17 Aug 2008 3 / 36 #12;Local (2006)] Eric Gourgoulhon (LUTH) New approaches to black holes Okinawa Nat. Col. Tech., 17 Aug 2008 4

  14. Woodfuel Usage Update 1 I Wood fuel use in Scotland 2010 I Hudson Consulting I October 2010

    E-Print Network [OSTI]

    .1.3. Other Industry/Commercial Heat Only (using up to 1,000 odt/yr) 3.1.4. Total Wood Fuel Use 3.2. Pellet categories are used: Virgin wood fibre (chip and sawmill co-product) UK Pellet Recycled fibre Energy cropsWoodfuel Usage Update 1 I Wood fuel use in Scotland 2010 I Hudson Consulting I October 2010

  15. I N F O R M A T I O N N O T E Forests and Wood

    E-Print Network [OSTI]

    ecosystem as they have a vital functional role through: · influencing the distribution, abundance wood ant nest mounds); · providing an important food source for predators such as capercaillie (Tetrao

  16. From Pinholes to Black Holes

    SciTech Connect (OSTI)

    Fenimore, Edward E.

    2014-10-06

    Pinhole photography has made major contributions to astrophysics through the use of “coded apertures”. Coded apertures were instrumental in locating gamma-ray bursts and proving that they originate in faraway galaxies, some from the birth of black holes from the first stars that formed just after the big bang.

  17. On Thermodynamics of 2d Black Holes in Brane Inflationary Potentials

    E-Print Network [OSTI]

    A. Belhaj; M. Chabab; H. El Moumni; M. B. Sedra; A. Segui

    2014-01-29

    Inspired from the inflation brane world cosmology, we study the thermodynamics of a black hole solution in two dimensional dilaton gravity with an arctangent potential background. We first derive the two dimensional black hole geometry, then we examine its asymptotic behaviors. More precisely, we find that such behaviors exhibit properties appearing in some known cases including the Anti de Sitter and the Schwarzchild black holes. Using the complex path method, we compute the Hawking radiation. The entropy function can be related to the value of the potential at the horizon.

  18. On Heat Properties of AdS Black Holes in Higher Dimensions

    E-Print Network [OSTI]

    A. Belhaj; M. Chabab; H. EL Moumni; K. Masmar; M. B. Sedra; A. Segui

    2015-07-01

    We investigate the heat properties of AdS Black Holes in higher dimensions. We consider the study of the corresponding thermodynamical properties including the heat capacity explored in the determination of the black hole stability. In particular, we compute the heat latent. To overcome the instability problem, the Maxwell construction, in the (T,S)-plane, is elaborated. This method is used to modify the the Hawking-Page phase structure by removing the negative heat capacity regions. Then, we discuss the thermodynamic cycle and the heat engines using the way based on the extraction of the work from a black hole solution.

  19. Fuel switching from wood to LPG can benefit the environment

    SciTech Connect (OSTI)

    Nautiyal, Sunil Kaechele, Harald

    2008-11-15

    The Himalaya in India is one of the world's biodiversity hotspots. Various scientific studies have reported and proven that many factors are responsible for the tremendous decline of the Himalayan forests. Extraction of wood biomass from the forests for fuel is one of the factors, as rural households rely entirely on this for their domestic energy. Efforts continue for both conservation and development of the Himalayan forests and landscape. It has been reported that people are still looking for more viable solutions that could help them to improve their lifestyle as well as facilitate ecosystem conservation and preservation of existing biodiversity. In this direction, we have documented the potential of the introduction of liquefied petroleum gas (LPG), which is one of the solutions that have been offered to the local people as a substitute for woodfuel to help meet their domestic energy demand. The results of the current study found dramatic change in per capita woodfuel consumption in the last two decades in the villages where people are using LPG. The outcome showed that woodfuel consumption had been about 475 kg per capita per year in the region, but after introduction of LPG, this was reduced to 285 kg per capita per year in 1990-1995, and was further reduced to 46 kg per capita per year in 2000-2005. Besides improving the living conditions of the local people, this transformation has had great environmental consequences. Empirical evidence shows that this new paradigm shift is having positive external effects on the surrounding forests. Consequently, we have observed a high density of tree saplings and seedlings in adjacent forests, which serves as an assessment indicator of forest health. With the help of the current study, we propose that when thinking about a top-down approach to conservation, better solutions, which are often ignored, should be offered to local people.

  20. Extremal Higher Spin Black Holes

    E-Print Network [OSTI]

    Máximo Bañados; Alejandra Castro; Alberto Faraggi; Juan I. Jottar

    2015-11-30

    The gauge sector of three-dimensional higher spin gravities can be formulated as a Chern-Simons theory. In this context, a higher spin black hole corresponds to a flat connection with suitable holonomy (smoothness) conditions which are consistent with the properties of a generalized thermal ensemble. Building on these ideas, we discuss a definition of black hole extremality which is appropriate to the topological character of 3d higher spin theories. Our definition can be phrased in terms of the Jordan class of the holonomy around a non-contractible (angular) cycle, and we show that it is compatible with the zero-temperature limit of smooth black hole solutions. While this notion of extremality does not require nor implies the existence of supersymmetry, we exemplify its consequences in the context of sl(3|2) + sl(3|2) Chern-Simons theory. Remarkably, while as usual not all extremal solutions preserve supersymmetries, we find that the higher spin setup allows for non-extremal supersymmetric black hole solutions as well. Furthermore, we discuss our results from the perspective of the holographic duality between sl(3|2) + sl(3|2) Chern-Simons theory and two-dimensional CFTs with W_{(3|2)} symmetry, the simplest higher spin extension of the N=2 super-Virasoro algebra. In particular, we compute W_{(3|2)} BPS bounds at the full quantum level, and relate their semiclassical limit to extremal black hole or conical defect solutions in the 3d bulk. Along the way, we discuss the role of the spectral flow automorphism and provide a conjecture for the form of the semiclassical BPS bounds in general N=2 two-dimensional CFTs with extended symmetry algebras.

  1. Course may include: Research in Education

    E-Print Network [OSTI]

    Course may include: Research in Education Statistics in Education Theories of Educational Admin Policy Analysis Sociological Aspects of Education Approaches to Literacy Development Information and Communication Technologies Issues in Education Final Project Seminar Master of Education Educational

  2. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2014-11-25

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material, such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  3. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2013-02-19

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  4. Dilatonic wormholes: construction, operation, maintenance and collapse to black holes

    E-Print Network [OSTI]

    Sean A. Hayward; Sung-Won Kim; Hyunjoo Lee

    2001-10-18

    The CGHS two-dimensional dilaton gravity model is generalized to include a ghost Klein-Gordon field, i.e. with negative gravitational coupling. This exotic radiation supports the existence of static traversible wormhole solutions, analogous to Morris-Thorne wormholes. Since the field equations are explicitly integrable, concrete examples can be given of various dynamic wormhole processes, as follows. (i) Static wormholes are constructed by irradiating an initially static black hole with the ghost field. (ii) The operation of a wormhole to transport matter or radiation between the two universes is described, including the back-reaction on the wormhole, which is found to exhibit a type of neutral stability. (iii) It is shown how to maintain an operating wormhole in a static state, or return it to its original state, by turning up the ghost field. (iv) If the ghost field is turned off, either instantaneously or gradually, the wormhole collapses into a black hole.

  5. Evaluation of Gas, Oil and Wood Pellet Fueled Residential Heating System Emissions Characteristics

    SciTech Connect (OSTI)

    McDonald, R.

    2009-12-01

    This study has measured the emissions from a wide range of heating equipment burning different fuels including several liquid fuel options, utility supplied natural gas and wood pellet resources. The major effort was placed on generating a database for the mass emission rate of fine particulates (PM 2.5) for the various fuel types studied. The fine particulates or PM 2.5 (less than 2.5 microns in size) were measured using a dilution tunnel technique following the method described in US EPA CTM-039. The PM 2.5 emission results are expressed in several units for the benefit of scientists, engineers and administrators. The measurements of gaseous emissions of O{sub 2}, CO{sub 2}, CO, NO{sub x} and SO{sub 2} were made using a combustion analyzer based on electrochemical cells These measurements are presented for each of the residential heating systems tested. This analyzer also provides a steady state efficiency based on stack gas and temperature measurements and these values are included in the report. The gaseous results are within the ranges expected from prior emission studies with the enhancement of expanding these measurements to fuels not available to earlier researchers. Based on measured excess air levels and ultimate analysis of the fuel's chemical composition the gaseous emission results are as expected and fall within the range provided for emission factors contained in the US-EPA AP 42, Emission Factors Volume I, Fifth Edition. Since there were no unexpected findings in these gaseous measurements, the bulk of the report is centered on the emissions of fine particulates, or PM 2.5. The fine particulate (PM 2.5) results for the liquid fuel fired heating systems indicate a very strong linear relationship between the fine particulate emissions and the sulfur content of the liquid fuels being studied. This is illustrated by the plot contained in the first figure on the next page which clearly illustrates the linear relationship between the measured mass of fine particulate per unit of energy, expressed as milligrams per Mega-Joule (mg/MJ) versus the different sulfur contents of four different heating fuels. These were tested in a conventional cast iron boiler equipped with a flame retention head burner. The fuels included a typical ASTM No. 2 fuel oil with sulfur below 0.5 percent (1520 average ppm S), an ASTM No. 2 fuel oil with very high sulfur content (5780 ppm S), low sulfur heating oil (322 ppm S) and an ultra low sulfur diesel fuel (11 ppm S). Three additional oil-fired heating system types were also tested with normal heating fuel, low sulfur and ultralow sulfur fuel. They included an oil-fired warm air furnace of conventional design, a high efficiency condensing warm air furnace, a condensing hydronic boiler and the conventional hydronic boiler as discussed above. The linearity in the results was observed with all of the different oil-fired equipment types (as shown in the second figure on the next page). A linear regression of the data resulted in an Rsquared value of 0.99 indicating that a very good linear relationship exits. This means that as sulfur decreases the PM 2.5 emissions are reduced in a linear manner within the sulfur content range tested. At the ultra low sulfur level (15 ppm S) the amount of PM 2.5 had been reduced dramatically to an average of 0.043 mg/MJ. Three different gas-fired heating systems were tested. These included a conventional in-shot induced draft warm air furnace, an atmospheric fired hydronic boiler and a high efficiency hydronic boiler. The particulate (PM 2.5) measured ranged from 0.011 to 0.036 mg/MJ. depending on the raw material source used in their manufacture. All three stoves tested were fueled with premium (low ash) wood pellets obtained in a single batch to provide for uniformity in the test fuel. Unlike the oil and gas fired systems, the wood pellet stoves had measurable amounts of particulates sized above the 2.5-micron size that defines fine particulates (less than 2.5 microns). The fine particulate emissions rates ranged from 22 to 30 mg/ MJ with an average value

  6. Magnetic wormholes and black universes with invisible ghosts

    E-Print Network [OSTI]

    K. A. Bronnikov; P. A. Korolyov

    2015-03-10

    We construct explicit examples of globally regular static, spherically symmetric solutions in general relativity with scalar and electromagnetic fields describing traversable wormholes with flat and AdS asymptotics and regular black holes, in particular, black universes. (A black universe is a regular black hole with an expanding, asymptotically isotropic space-time beyond the horizon.) The existence of such objects requires invoking scalars with negative kinetic energy ("phantoms", or "ghosts"), which are not observed under usual physical conditions. To account for that, the so-called "trapped ghosts" were previously introduced, i.e., scalars whose kinetic energy is only negative in a restricted strong-field region of space-time and positive outside it. This approach leads to certain problems, including instability (as is illustrated here by derivation of an effective potential for spherical pertubations of such systems). In this paper, we use for model construction what we call "invisible ghosts", i.e., phantom scalar fields sufficiently rapidly decaying in the weak-field region. The resulting configurations contain different numbers of Killing horizons, from zero to four.

  7. Horizon of quantum black holes in various dimensions

    E-Print Network [OSTI]

    Casadio, Roberto; Giugno, Andrea; Mureika, Jonas

    2015-01-01

    We adapt the horizon wave-function formalism to describe massive static spherically symmetric sources in a general $(1+D)$-dimensional space-time, for $D>3$ and including the $D=1$ case. We find that the probability $P_{\\rm BH} $ that such objects are (quantum) black holes behaves similarly to the probability in the $(3+1)$ framework for $D> 3$. In fact, for $D\\ge 3$, the probability increases towards unity as the mass grows above the relevant $D$-dimensional Planck scale $m_D$, the faster the larger $D$. In contrast, for $D=1$, we find the probability is comparably larger for smaller masses, but $P_{\\rm BH} < 0.5$, suggesting that such lower dimensional black holes are purely quantum and not classical objects. This result is consistent with recent observations that sub-Planckian black holes are governed by an effective two-dimensional gravitation theory. Lastly, we derive Generalised Uncertainty Principle relations for the black holes under consideration, and for all cases find a minimum length scale $L_D...

  8. Quasi-black holes: general features and purely field configurations

    E-Print Network [OSTI]

    K. A. Bronnikov; O. B. Zaslavskii

    2015-04-27

    Objects that are on the threshold of forming the horizon but never collapse are called quasi-black holes (QBHs). We discuss the properties of the general spherically symmetric QBH metric without addressing its material source, including its limiting cases as the corresponding small parameter tends to zero. We then show that QBHs can exist among self-gravitating configurations of electromagnetic and dilatonic scalar fields without matter. These general results are illustrated by explicit examples of exact solutions.

  9. Assessment methodology for the air quality impact of residential wood burning

    SciTech Connect (OSTI)

    Lipfert, F.W.

    1981-01-01

    Data from surveys of 1977-1979 indicate that firewood usage tends to vary inversely with population density, resulting in an implied limit to the density of usage. Tests of wood stoves indicate that emissions of particulates vary inversely with heat demand, such that nighttime emissions at low combustion rates may be worse than those during maximum heat demand conditions. Finally, atmospheric dispersion rates are coupled to the driving forces of space heating so that nighttime emissions tend to have a disproportionately large impact on ambient air quality. All of these factors must be considered jointly in order to perform a meaningful assessment of the air quality impacts of increased residential wood fuel use; the results indicate that in flat terrain primary ambient standards are not threatened by residential wood combustion.

  10. Precision wood particle feedstocks with retained moisture contents of greater than 30% dry basis

    DOE Patents [OSTI]

    Dooley, James H; Lanning, David N

    2014-10-28

    Wood particles having fibers aligned in a grain, wherein: the wood particles are characterized by a length dimension (L) aligned substantially parallel to the grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) normal to W and L; the L.times.H dimensions define two side surfaces characterized by substantially intact longitudinally arrayed fibers; the W.times.H dimensions define two cross-grain end surfaces characterized individually as aligned either normal to the grain or oblique to the grain; the L.times.W dimensions define two substantially parallel top and bottom surfaces; and, a majority of the W.times.H surfaces in the mixture of wood particles have end checking.

  11. Renewable wood fuel: Fuel feed system for a pulverized coal boiler. Final report

    SciTech Connect (OSTI)

    1996-01-01

    This report evaluates a pilot test program conducted by New York State Gas & Electric Corporation to evaluate the feasibility of co-firing a pulverized coal plant with renewable wood fuels. The goal was to establish that such a co-firing system can reduce air emissions while maintaining good operational procedures and cost controls. The test fuel feed system employed at Greenidge Station`s Boiler 6 was shown to be effective in feeding wood products. Emission results were promising and an economic analysis indicates that it will be beneficial to pursue further refinements to the equipment and systems. The report recommends further evaluation of the generation and emission impacts using woods of varied moisture contents and at varied Btu input rates to determine if a drying system would be a cost-effective option.

  12. Electric co-generation units equipped with wood gasifier and Stirling engine

    SciTech Connect (OSTI)

    Bartolini, C.M.; Caresana, F.; Pelagalli, L.

    1998-07-01

    The disposal of industrial waste such as oil sludges, waste plastic, lubricant oils, paper and wood poses serious problems due to the ever increasing amount of material to be disposed of and to the difficulty in finding new dumping sites. The interest in energy recovery technologies is accordingly on the increase. In particular, large amounts of waste wood are simply burned or thrown away causing considerable environmental damage. In this context the co-generation technique represents one of the possible solutions for efficient energy conversion. The present paper proposes the employment of a Stirling engine as prime mover in a co-generation set equipped with a wood gasifier. A Stirling engine prototype previously developed in a joint project with Mase Generators, an Italian manufacturer of fixed and portable electrogenerators, is illustrated and its design is described.

  13. Scramjet including integrated inlet and combustor

    SciTech Connect (OSTI)

    Kutschenreuter, P.H. Jr.; Blanton, J.C.

    1992-02-04

    This patent describes a scramjet engine. It comprises: a first surface including an aft facing step; a cowl including: a leading edge and a trailing edge; an upper surface and a lower surface extending between the leading edge and the trailing edge; the cowl upper surface being spaced from and generally parallel to the first surface to define an integrated inlet-combustor therebetween having an inlet for receiving and channeling into the inlet-combustor supersonic inlet airflow; means for injecting fuel into the inlet-combustor at the step for mixing with the supersonic inlet airflow for generating supersonic combustion gases; and further including a spaced pari of sidewalls extending between the first surface to the cowl upper surface and wherein the integrated inlet-combustor is generally rectangular and defined by the sidewall pair, the first surface and the cowl upper surface.

  14. Demonstration Results From Greenhouse Heating with Liquified Wood

    SciTech Connect (OSTI)

    Steele, Philip; Parish, Don; Cooper, Jerome

    2011-07-01

    A boiler fuel known as Lignocellulosic Boiler Fuel (LBF) was developed at the Department of Forest Products, Mississippi State University for potential application for heating agricultural buildings. LBF was field tested to heat green houses in cooperation with Natchez Trace Greenhouses (NTG) located in Kosciusko, Mississippi. MSU modified an idled natural gas boiler located at NTG to combust the LBF. Thirty gallons of bio-oil were produced at the MSU Bio-oil Research Laboratory. The bio-oil was produced from the fast-pyrolysis of southern pine (15 gal) and white oak (15 gal) feedstocks and subsequently upgraded by a proprietary process. Preliminary field testing was conducted at (NTG). The LBF was produced from each wood species was tested separately and co-fed with diesel fuel to yield three fuel formulations: (1) 100% diesel; (2) 87.5% LBF from southern pine bio-oil co-fed with 12.5% diesel and (3) 87.5% LBF from white oak co-fed with 12.5% diesel fuel formulations. Each fuel formulation was combusted in a retrofit NTG boiler. Fuel consumption and water temperature were measured periodically. Flue gas from the boiler was analyzed by gas chromatograph. The 100% diesel fuel increased water temperature at a rate of 4 ���°F per min. for 35 min. to achieve the target 140 ���°F water temperature increase. The 87.5% pine LBF fuel cofed with 12.5%) diesel attained the 140 ���°F water temperature increase in 62 min. at a rate of 2.3 ���°F per min. The 87.5% white oak LBF fuel co-fed with 12.5% diesel reached the 140 ���°F water temperature increase in 85 min. at a rate of 1.6 ���°F per min. Fuel that contained 87.5% pine LBF co-fed with 12.5% diesel yielded nitrogen and oxygen at a ratio of 5.3 and carbon dioxide and carbon monoxide at a ratio of 22.2. Fuel formulations that contained 87.5% white oak LBF co-fed with 12.5% diesel yielded nitrogen and oxygen at a ratio of 4.9 and carbon dioxide and carbon monoxide at a ratio of 16.4. Neither the pine LBF nor the white oak LBF fuel showed any measureable methane emissions from the NTG boiler flue gas. These results indicate a viable potential for mildly upgraded bio-oil to become an alternative fuel source for greenhouse operations.

  15. Electric Power Monthly, August 1990. [Glossary included

    SciTech Connect (OSTI)

    Not Available

    1990-11-29

    The Electric Power Monthly (EPM) presents monthly summaries of electric utility statistics at the national, Census division, and State level. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead. Data includes generation by energy source (coal, oil, gas, hydroelectric, and nuclear); generation by region; consumption of fossil fuels for power generation; sales of electric power, cost data; and unusual occurrences. A glossary is included.

  16. The flash pyrolysis and methanolysis of biomass (wood) for production of ethylene, benzene and methanol

    SciTech Connect (OSTI)

    Steinberg, M.; Fallon, P.T.; Sundaram, M.S.

    1990-02-01

    The process chemistry of the flash pyrolysis of biomass (wood) with the reactive gases, H{sub 2} and CH{sub 4} and with the non-reactive gases He and N{sub 2} is being determined in a 1 in. downflow tubular reactor at pressures from 20 to 1000 psi and temperatures from 600 to 1000{degrees}C. With hydrogen, flash hydropyrolysis leads to high yields of methane and CO which can be used for SNG and methanol fuel production. With methane, flash methanolysis leads to high yields of ethylene, benzene and CO which can be used for the production of valuable chemical feedstocks and methanol transportation fuel. At reactor conditions of 50 psi and 1000{degrees}C and approximately 1 sec residence time, the yields based on pine wood carbon conversion are up to 25% for ethylene, 25% for benzene, and 45% for CO, indicating that over 90% of the carbon in pine is converted to valuable products. Pine wood produces higher yields of hydrocarbon products than Douglas fir wood; the yield of ethylene is 2.3 times higher with methane than with helium or nitrogen, and for pine, the ratio is 7.5 times higher. The mechanism appears to be a free radical reaction between CH{sub 4} and the pyrolyzed wood. There appears to be no net production or consumption of methane. A preliminary process design and analysis indicates a potentially economical competitive system for the production of ethylene, benzene and methanol based on the methanolysis of wood. 10 refs., 18 figs., 1 tab.

  17. HOT BOTTOM BURNING IN INTERMEDIATE MASS STARS JOHN LATTANZIO 1;2 , CHERYL FROST 1;2 , ROBERT CANNON 2;3 , PETER WOOD 4

    E-Print Network [OSTI]

    Lattanzio, John

    2;3 , PETER WOOD 4 1 Monash University, Melbourne, Australia 2 Institute of Astronomy, Cambridge in the Magellanic Clouds were observed by Wood, Bessell and Fox (1983) they were surprised to discover

  18. Minutes of the Chancellor's Cabinet Meeting of Monday, February 24, 2014 Present: Les Johnson, Barbara Keinath, Peter Phaiah, Tricia Sanders, Andrew Svec, Fred Wood

    E-Print Network [OSTI]

    Minnesota, University of

    , Barbara Keinath, Peter Phaiah, Tricia Sanders, Andrew Svec, Fred Wood Meeting began at 8:30. I. Minutes high awareness of and build support for UMC's Wellness Center, Fred Wood is meeting tonight

  19. Black Hole Thermodynamics and Electromagnetism

    E-Print Network [OSTI]

    Burra G. Sidharth

    2005-07-15

    We show a strong parallel between the Hawking, Beckenstein black hole Thermodynamics and electromagnetism: When the gravitational coupling constant transform into the electromagnetic coupling constant, the Schwarzchild radius, the Beckenstein temperature, the Beckenstein decay time and the Planck mass transform to respectively the Compton wavelength, the Hagedorn temperature, the Compton time and a typical elementary particle mass. The reasons underlying this parallalism are then discussed in detail.

  20. Quantum chaos inside Black Holes

    E-Print Network [OSTI]

    Addazi, Andrea

    2015-01-01

    We show how semiclassical black holes can be reinterpreted as an effective geometry, composed of a large ensamble of horizonless naked singularities (eventually smoothed at the Planck scale). We call this new items {\\it frizzyballs}, which can be rigorously defined by euclidean path integral approach. This has interesting implications regarding information paradoxes. We demonstrate that infalling information will chaotically propagate inside this system before going to the full quantum gravity regime (Planck scale).