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Sample records for wake forest university

  1. Wake Forest University Medical Waste Management Plan

    E-Print Network [OSTI]

    Cook, Greg

    Wake Forest University Medical Waste Management Plan June 15, 2009 Rev.1 1 Biohazard Waste without a permit from the Solid Waste Section. The Occupational Safety and Health Administration (OSHA) regulate Bloodborne Pathogens and Exposure Control Plans. Under state regulations a solid waste generator

  2. Reynolda Campus Wake Forest

    E-Print Network [OSTI]

    Anderson, Paul R.

    Reynolda Campus Wake Forest University Wake Forest University Reynolda Campus Office of Research than NIH and NSF, such as the Departments of Commerce, Energy, Homeland Security, and State

  3. Health Information & Immunization Form Wake Forest University Student Health Service

    E-Print Network [OSTI]

    Anderson, Paul R.

    - A - Health Information & Immunization Form Wake Forest University Student Health Service P.O. Box or by a clinic or health department stamp. · High School Records--These may contain some, but not all, of your. · Local Health Department. · Previous College or University Records--Your immunization records do

  4. NON-DISCRIMINATION STATEMENT Wake Forest University is committed to diversity, inclusion and the spirit of Pro Humanitate. In adherence with

    E-Print Network [OSTI]

    Anderson, Paul R.

    NON-DISCRIMINATION STATEMENT 2012 Wake Forest University is committed to diversity, inclusion, the University prohibits discrimination in its employment practices and its educational programs and activities inquiries regarding the University's non-discrimination policies: Angela Culler Title IX Coordinator

  5. Cost-Share Policy for Wake Forest University, Reynolda Campus This policy will serve as a reference for faculty who are preparing a proposal that

    E-Print Network [OSTI]

    Anderson, Paul R.

    7/1/09 Cost-Share Policy for Wake Forest University, Reynolda Campus Background This policy will serve as a reference for faculty who are preparing a proposal that includes funds for cost share, or matching. Cost share can be provided in the form of a cash match, third-party contributions, and in

  6. High redshift signatures in the 21 cm forest due to cosmic string wakes

    E-Print Network [OSTI]

    Hiroyuki Tashiro; Toyokazu Sekiguchi; Joseph Silk

    2013-10-15

    Cosmic strings induce minihalo formation in the early universe. The resultant minihalos cluster in string wakes and create a "21 cm forest" against the cosmic microwave background (CMB) spectrum. Such a 21 cm forest can contribute to angular fluctuations of redshifted 21 cm signals integrated along the line of sight. We calculate the root-mean-square amplitude of the 21 cm fluctuations due to strings and show that these fluctuations can dominate signals from minihalos due to primordial density fluctuations at high redshift ($z \\gtrsim 10$), even if the string tension is below the current upper bound, $G \\mu Square Kilometre Array (SKA) can potentially detect the 21 cm fluctuations due to strings with $G \\mu \\approx 7.5 \\times 10^{-8}$ for the single frequency band case and $4.0 \\times 10^{-8}$ for the multi-frequency band case.

  7. High redshift signatures in the 21 cm forest due to cosmic string wakes

    SciTech Connect (OSTI)

    Tashiro, Hiroyuki; Sekiguchi, Toyokazu; Silk, Joseph E-mail: toyokazu.sekiguchi@nagoya-u.jp

    2014-01-01

    Cosmic strings induce minihalo formation in the early universe. The resultant minihalos cluster in string wakes and create a ''21 cm forest'' against the cosmic microwave background (CMB) spectrum. Such a 21 cm forest can contribute to angular fluctuations of redshifted 21 cm signals integrated along the line of sight. We calculate the root-mean-square amplitude of the 21 cm fluctuations due to strings and show that these fluctuations can dominate signals from minihalos due to primordial density fluctuations at high redshift (z?>10), even if the string tension is below the current upper bound, G? < 1.5 × 10{sup ?7}. Our results also predict that the Square Kilometre Array (SKA) can potentially detect the 21 cm fluctuations due to strings with G? ? 7.5 × 10{sup ?8} for the single frequency band case and 4.0 × 10{sup ?8} for the multi-frequency band case.

  8. WAKE FOREST UNIVERSITY OFFICE of RESEARCH & SPONSORED

    E-Print Network [OSTI]

    Anderson, Paul R.

    , Wildacres Retreat Robert Hellyer, History, Green Tea and the Path to an Industrial, International Japan

  9. Wake Forest, North Carolina: 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-EnhancingEt Al.,Turin,Village ofWaialua, Hawaii: EnergyWairakei-PoihipiForest, North

  10. SCHOOL OF FOREST RESOURCES UNIVERSITY OF WASHINGTON

    E-Print Network [OSTI]

    Brown, Sally

    Suntana Utilization of Aboveground Forest Biomass for Sustainable Energy Development Lauren S. UrgensonSCHOOL OF FOREST RESOURCES UNIVERSITY OF WASHINGTON WELCOME Tom Hinckley, Interim Director and Professor SCHOOL OF FOREST RESOURCES ALUMNI ASSOCIATION Ara Erickson (`04) Green Cities Director, Cascade

  11. Universal scaling of forest fire propagation

    E-Print Network [OSTI]

    Bernard, Porterie; Pierre, Clerc Jean; Nouredine, Zekri; Zekri, Lotfi

    2008-01-01

    In this paper we use a variant of the Watts-Strogatz small-world model to predict wildfire behavior near the critical propagation/nonpropagation threshold. We find that forest fire patterns are fractal and that critical exponents are universal, which suggests that the propagation/nonpropagation transition is a second-order transition. Universality tells us that the characteristic critical behaviour of propagation in real (amorphous) forest landscapes can be extracted from the simplest network model.

  12. WAKE FOREST BAPTIST MEDICAL CENTER OFFERS A NUMBER OF SUPPORTIVE SERVICES TO HELP FACULTY, STAFF, AND STUDENTS THROUGH TIMES OF STRESS AND CHANGE.

    E-Print Network [OSTI]

    Anderson, Paul R.

    WAKE FOREST BAPTIST MEDICAL CENTER OFFERS A NUMBER OF SUPPORTIVE SERVICES TO HELP FACULTY, STAFF to all employees. Counselors at EAP provide one-on-one sessions as well as group support, offering Greason offer supportive resources and may be contacted at studentwellness@wakehealth.edu or http

  13. CSC 348648 WAKE FOREST

    E-Print Network [OSTI]

    Fulp, Errin W.

    via IRC or P2P How is this similar/different than worms? · Used as a platform for various attacks IRC bot What was it used for? · DDoS bots in the late 1990s, Trin00, TFN, and Stacheldracht · Remote (combines characteristics of a worm and a Trojan) ­ Remotely controlled (typically via IRC) ­ Many

  14. CSC 348648 WAKE FOREST

    E-Print Network [OSTI]

    Fulp, Errin W.

    and upgraded via IRC or P2P How is this similar/di#erent than worms? . Used as a platform for various attacks . Eggdrop (1993), early IRC bot What was it used for? . DDoS bots in the late 1990s, Trin00, TFN (typically via IRC) -- Many variations of the same code E. W. Fulp CSC 348·648 Fall 2014 2 Tob Sepyt . Benign

  15. Notes on shoreline erosion due to boat wakes and wind waves Tim Gourlay, Centre for Marine Science and Technology, Curtin University

    E-Print Network [OSTI]

    , Western Australia. It was found that annual transmitted boat wave energy was much smaller than annual transmitted wind wave energy, due to the short duration of boat wakes and limited number of passing boats and Technology, Curtin University CMST research report 2011-16 November 2011 Abstract These notes concern

  16. Biographical Sketch: N. A. W. Holzwarth Mail: Wake Forest University, Department of

    E-Print Network [OSTI]

    Holzwarth, Natalie

    , City College of New York 1980-1982: Research Physicist, Theoretical Sciences Group, Exxon Research. Nicholas Lepley, Yaojun A. Du, and N. A. W. Holzwarth, "Structures, Li+ mobilities, and interfacial

  17. Annual Report 20122013 WAKE FOREST UNIVERSITY GRAD UATE S CHOOL OF ARTS AND S CIENCES

    E-Print Network [OSTI]

    Anderson, Paul R.

    Film MA 12 6 (50%) 2 (33%) Documentary Film MFA 19 16 (84%) 9 (56%) Education 32 21 (66%) 14 (67 Documentary Film MA 4 8 12 1 2 3 6 Documentary Film MFA 7 12 19 1 4 1 10 2 1 Education 9 23 32 3 2 26 1.3 Counseling Online 152 146 298 3.8 3.2 Documentary Film MA 152 153 305 3.9 3.6 87 Documentary Film MFA 157 148

  18. Annual Report -2013-2014 Wake Forest University Graduate School of Arts and Sciences

    E-Print Network [OSTI]

    Anderson, Paul R.

    Counseling 110 15 15 Counseling MDiv/MA 4 1 1 Counseling Online 135 89 65 Documentary Film MA 5 3 1 Documentary Film MFA 23 16 10 Education 34 24 19 English 31 21 11 Health & Exercise Science 26 12 7 Human

  19. Wake Forest University Guidelines for Internal and External Support of Academic Year Research Salary

    E-Print Network [OSTI]

    Anderson, Paul R.

    Research Salary This document provides guidance to tenured and tenure-track faculty who are interested on research/creative activity, or cover academic year salary related to research effort expended-out and recovery of academic year salary do not relieve individual faculty members of their concomitant service

  20. SCHOOL OF FOREST RESOURCES UNIVERSITY OF WASHINGTON

    E-Print Network [OSTI]

    Brown, Sally

    , and Carbon, and Fuel Consumption in Shrub-dominated Ecosystems Royce Anderson Microarthropod Distribution: an Assessment of Regional Streamflow Response to Climate Change Jessica Farmer Variations in Types of Major Funding Partnerships in College and University Gardens Justina Harris Urbanization and Picea sitchensis

  1. Visitor Parking Wake Forest Rd.

    E-Print Network [OSTI]

    Anderson, Paul R.

    , Food Court, Shorty's, Post Office 7 Z. Smith Reynolds Library Starbucks 7A Wilson Wing 8 Olin Physical

  2. Visitor Parking Wake Forest Rd.

    E-Print Network [OSTI]

    Erway, Jennifer

    , Shorty's, Post Office 7 Z. Smith Reynolds Library Starbucks 7A Wilson Wing 8 Olin Physical Laboratory 9

  3. UNIVERSITY OF WASHINGTON COLLEGE OF FOREST RESOURCES (CFR) STRATEGIC PLANNING RETREAT

    E-Print Network [OSTI]

    Brown, Sally

    1 UNIVERSITY OF WASHINGTON COLLEGE OF FOREST RESOURCES (CFR) STRATEGIC PLANNING RETREAT September BEEN ACCOMPLISHED IN THE COLLEGE OF FOREST RESOURCES SINCE THE LAST STRATEGIC PLANNING RETREAT AND WHAT professorships (Ridgeway and Scott) · Availability of student scholarships from CFR · Updated Master Plan

  4. Experimental investigation of a stratified buoyant wake 

    E-Print Network [OSTI]

    Kraft, Wayne Neal

    2004-11-15

    An existing water channel facility at Texas A&M University is used to experimentally study a stratified, buoyant wake. A cylindrical obstruction placed at the centerline of a developing Rayleigh-Taylor mixing layer serves to disturb the equilibrium...

  5. University of Maine Integrated Forest Product Refinery (IFPR) Technology Research

    SciTech Connect (OSTI)

    Pendse, Hemant P.

    2010-11-23

    This project supported research on science and technology that forms a basis for integrated forest product refinery for co-production of chemicals, fuels and materials using existing forest products industry infrastructure. Clear systems view of an Integrated Forest Product Refinery (IFPR) allowed development of a compelling business case for a small scale technology demonstration in Old Town ME for co-production of biofuels using cellulosic sugars along with pulp for the new owners of the facility resulting in an active project on Integrated Bio-Refinery (IBR) at the Old Town Fuel & Fiber. Work on production of advanced materials from woody biomass has led to active projects in bioplastics and carbon nanofibers. A lease for 40,000 sq. ft. high-bay space has been obtained to establish a Technology Research Center for IFPR technology validation on industrially relevant scale. UMaine forest bioproducts research initiative that began in April 2006 has led to establishment of a formal research institute beginning in March 2010.

  6. Michigan Technological University tHE MICHIGAN TECH FORESTER

    E-Print Network [OSTI]

    the Publishing Paper Division is housed. I would especially like to thank Mr. Robert E. Barron, Sr., for taking thanks to all the alumni who contributed most g'enerously for the publication ofour book. I hope every ..... . ..... . ..... . ............ 5 Forester's Salute ................ ... ...... 6 Report from the Dean .................... 8 Gene

  7. Texas A&M University Dept. of Forest Science Course title Advanced Remote Sensing

    E-Print Network [OSTI]

    1 Texas A&M University Dept. of Forest Science Course title Advanced Remote Sensing Course number of this course is twofold: to introduce students with a basic knowledge of remote sensing to advanced topics in digital remote sensing applications and to instill enthusiasm in this subject area to encourage future

  8. Modelling of wind turbine wakes in complex terrain using computational fluid dynamics 

    E-Print Network [OSTI]

    Makridis, Alexandros

    2012-06-25

    This thesis focuses on modelling of wind turbine wakes when they are affected by real complex terrain features, such as hills and forests, and also examines the effect of the rotational momentum imparted to the downstream ...

  9. Department of Environmental Conservation, University of Massachusetts-Amherst Concentration in Forest Resources and Arboriculture 1

    E-Print Network [OSTI]

    Schweik, Charles M.

    sequestration; landscape and ecosystem ecology; forest policy and the social and economic aspects of forest in Massachusetts. ECo students often conduct studies on urban forestry issues, such as this study on the impacts in places such as Colorado, Peru, and Mexico. There are approximately 15 graduate students in the Forest

  10. Simulation of ultrashort electron pulse generation from optical injection into wake-field plasma waves

    E-Print Network [OSTI]

    Umstadter, Donald

    Simulation of ultrashort electron pulse generation from optical injection into wake-field plasma waves E. S. Dodd,* J. K. Kim, and D. Umstadter Center for Ultrafast Optical Science, University are focused in a plasma, one exciting a wake-field electron plasma wave while another locally alters some

  11. School of Environmental & Forest Sciences, College of the Environment, University of Washington Benjamin Hagood

    E-Print Network [OSTI]

    Brown, Sally

    - road tracks to take "woodchips" for energy production" fracking- have serious concerns of the rapid population increase and tourism impact on the forest and desert

  12. Optical Effects of the Wake Fields

    SciTech Connect (OSTI)

    Heifets, S.; Novokhatski, S.; Teytelman, D.; /SLAC

    2006-09-27

    We discuss optical effects of the wake fields: synchronous phase and bunch length variation along the train of bunches, effect of the wakes on the tune and on the Twiss parameters.

  13. American Institute of Aeronautics and Astronautics Paper 2009-4192 Computational Study of Wing-Wake Interactions between

    E-Print Network [OSTI]

    and aerodynamic performance due to wing-wing and wing-wake interactions of dragonfly ipsilateral wings. Current1 American Institute of Aeronautics and Astronautics Paper 2009-4192 Computational Study of Wing-Wake of Mechanical & Materials Engineering, Wright State University, Dayton, OH 45435 Bilateral and ipsilateral wing-wing

  14. Department of Forest Engineering, Resources and Management Oregon State University, 280 Peavy Hall, Corvallis, Oregon 97331-8615

    E-Print Network [OSTI]

    that control forest productivity, emphasizing applications to large forest landscapes of diverse ownerships. (3, and function, and integrating traditional principles of commodity production with contemporary issues senior landscape planning capstone course, a graduate course in forest landscape management

  15. Sustainable Nanomaterials from Forest Products: Umaine Perspective

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

    Center Forest Bioproducts Research Institute School of Forest Resources, University of Maine Ligno-Cellulose: Maine's Niche to Compete in Nanotech Stone Age ... Bronze Age...

  16. University of Washington School of Environmental and Forest Sciences Health &Safety Plan

    E-Print Network [OSTI]

    Brown, Sally

    and Operations Plans (EEOP) 3. Accidents: a. Medical Emergencies b. Report Form to Supervisor c. Investigation 4 Resources Center Pack Forest Wind River Field Station SEFS also conducts outdoor operations, including. It is advised that a safety protocol and manual be followed for all outdoor operations. This plan does

  17. Instructions for use Eurasian J. For. Res. 15-1: 9-17 , 2012 Hokkaido University Forests, EFRC

    E-Print Network [OSTI]

    Tachizawa, Kazuya

    .yamagata-u.ac.jp Forest Fires Effects on Carbon Stocks and Soil Chemistry in Central Yakutia, Eastern Siberia LOPEZ C. M sites. Salt content increased in the active layer following forest fires, but a decade later, the salt: Black carbon, Forest fires, Permafrost, Soil chemistry, Soil organic carbon Introduction Boreal forests

  18. Modeling the Lunar plasma wake

    E-Print Network [OSTI]

    Holmstrom, M

    2013-01-01

    Bodies that lack a significant atmosphere and internal magnetic fields, such as the Moon and asteroids, can to a first approximation be considered passive absorbers of the solar wind. The solar wind ions and electrons directly impact the surface of these bodies due to the lack of atmosphere, and the interplanetary magnetic field passes through the obstacle relatively undisturbed because the bodies are assumed to be non-conductive. Since the solar wind is absorbed by the body, a wake is created behind the object. This wake is gradually filled by solar wind plasma downstream of the body, through thermal expansion and the resulting ambipolar electric field, along the magnetic field lines. Here we study this plasma expansion into a vacuum using a hybrid plasma solver. In the hybrid approximation, ions are treated as particles, and electrons as a massless fluid. We also derive corresponding one- and two-dimensional model problems that account for the absorbing obstacle. It is found that the absorbing obstacle crea...

  19. Norman B. Schwartz. Forest Society: A Social History of Peten, Guatemala. University of Oklahoma Press, 1990.

    E-Print Network [OSTI]

    Herrera, Robinson

    1991-01-01

    A Social History of Peten, Guatemala. University of Oklahomathe highland region of Guatemala, Schwartz worked heavily inon colonial lowland Guatemala. Lamentably these chapters

  20. Strategic change and the coevolution of industry-university relationships : evidence from the forest products industry

    E-Print Network [OSTI]

    Pertuzé Salas, Julio Alberto

    2014-01-01

    In this thesis we present an analysis of the dynamics of industry-university relationships tracing the origin of the relationship and its changes over time as the firm's strategies evolve. We analyze the strategic trajectories ...

  1. Town of Wake Forest, North Carolina (Utility Company) | 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:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin Film SolarTown of Skiatook, Oklahoma (Utility Company)Town

  2. Sandia Energy - Wake Imaging Measurement System

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

    Imaging Measurement Systemcwdd2015-05-11T19:00:46+00:00 Wakes produced from upstream turbines in wind plants lead to lower power production and increased loads on downstream...

  3. Comparison of Wake Model Simulations with Offshore Wind Turbine Wake Profiles Measured by Sodar

    E-Print Network [OSTI]

    Pryor, Sara C.

    a ship-mounted sodar at a small offshore wind farm. The experiments were conducted at varying distances Offshore wind farms have increased in size from the first phase of installation with up to 20 turbinesComparison of Wake Model Simulations with Offshore Wind Turbine Wake Profiles Measured by Sodar R

  4. Vermont's Changing Forests Key Findings on the

    E-Print Network [OSTI]

    Keeton, William S.

    1 Vermont's Changing Forests Key Findings on the Health of Forested Ecosystems from the Vermont Members Anne Archie, USDA Forest Service Douglas Lantagne, University of Vermont Ed O'Leary, Vermont, USDA Farm Service Agency Charles Scott, USDA Forest Service Steven Sinclair, Vermont Agency of Natural

  5. DIELECTRIC WAKE FIELD RESONATOR ACCELERATOR MODULE

    SciTech Connect (OSTI)

    Hirshfield, Jay L.

    2013-11-06

    Results are presented from experiments, and numerical analysis of wake fields set up by electron bunches passing through a cylindrical or rectangular dielectric-lined structure. These bunches excite many TM-modes, with Ez components of the wake fields sharply localized on the axis of the structure periodically behind the bunches. The experiment with the cylindrical structure, carried out at ATF Brookhaven National Laboratory, used up to three 50 MeV bunches spaced by one wake field period (21 cm) to study the superposition of wake fields by measuring the energy loss of each bunch after it passed through the 53-cm long dielectric element. The millimeter-wave spectrum of radiation excited by the passage of bunches is also studied. Numerical analysis was aimed not only to simulate the behavior of our device, but in general to predict dielectric wake field accelerator performance. It is shown that one needs to match the radius of the cylindrical dielectric channel with the bunch longitudinal rms-length to achieve optimal performance.

  6. Ship wakes: Kelvin or Mach angle?

    E-Print Network [OSTI]

    Rabaud, Marc

    2013-01-01

    From the analysis of a set of airborne images of ship wakes, we show that the wake angles decrease as $U^{-1}$ at large velocities, in a way similar to the Mach cone for supersonic airplanes. This previously unnoticed Mach-like regime is in contradiction with the celebrated Kelvin prediction of a constant angle of $19.47\\degree$ independent of the ship's speed. We propose here a model, confirmed by numerical simulations, in which the finite size of the disturbance explains this transition between the Kelvin and Mach regimes at a Froude number $Fr = U/\\sqrt{gL} \\simeq 0.5$, where $L$ is the hull ship length.

  7. The University of Notre Dame Patterns of Leaf Mass, Area and Nitrogen in Young Northern Hardwood Forests

    E-Print Network [OSTI]

    Battles, John

    Forests JEN CRAMER', TIM FAHEY2 ANDJOHN BATTLES3 Departmentof Natural Resources,12 FernowHall, Cornell's Terms and Conditions of Use, available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR

  8. Sandia Energy - Developing a Fast-Running Turbine Wake Model

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

    Developing a Fast-Running Turbine Wake Model Home Renewable Energy Energy Water Power News News & Events Developing a Fast-Running Turbine Wake Model Previous Next Developing a...

  9. Active Wake Redirection Control to Improve Energy Yield (Poster)

    SciTech Connect (OSTI)

    Churchfield, M. J.; Fleming, P.; DeGeorge, E.; Bulder, B; White, S. M.

    2014-10-01

    Wake effects can dramatically reduce the efficiency of waked turbines relative to the unwaked turbines. Wakes can be deflected, or 'redirected,' by applying yaw misalignment to the turbines. Yaw misalignment causes part of the rotor thrust vector to be pointed in the cross-stream direction, deflecting the flow and the wake. Yaw misalignment reduces power production, but the global increase in wind plant power due to decreased wake effect creates a net increase in power production. It is also a fairly simple control idea to implement at existing or new wind plants. We performed high-fidelity computational fluid dynamics simulations of the wake flow of the proposed Fishermen's Atlantic City Windfarm (FACW) that predict that under certain waking conditions, wake redirection can increase plant efficiency by 10%. This means that by applying wake redirection control, for a given watersheet area, a wind plant can either produce more power, or the same amount of power can be produced with a smaller watersheet area. With the power increase may come increased loads, though, due to the yaw misalignment. If misalignment is applied properly, or if layered with individual blade pitch control, though, the load increase can be mitigated. In this talk we will discuss the concept of wake redirection through yaw misalignment and present our CFD results of the FACW project. We will also discuss the implications of wake redirection control on annual energy production, and finally we will discuss plans to implement wake redirection control at FACW when it is operational.

  10. Explicit Expressions of Impedances and Wake Functions

    SciTech Connect (OSTI)

    Ng, K.Y.; /Fermilab; Bane, K,; /SLAC

    2012-06-11

    Sections 3.2.4 and 3.2.5 of the Handbook of Accelerator Physics and Engineering on Landau damping are combined and updated. The new addition includes impedances and wakes for multi-layer beam pipe, optical model, diffraction model, and cross-sectional transition.

  11. Explicit expressions of impedances and wake functions

    SciTech Connect (OSTI)

    Ng, K.Y.; /Fermilab; Bane, K,; /SLAC

    2010-10-01

    Sections 3.2.4 and 3.2.5 of the Handbook of Accelerator Physics and Engineering on Landau damping are combined and updated. The new addition includes impedances and wakes for multi-layer beam pipe, optical model, diffraction model, and cross-sectional transition.

  12. DENMAN FORESTRY ISSUES SERIES Role of Forests and Forest Products in Carbon Mitigation

    E-Print Network [OSTI]

    Brown, Sally

    1 DENMAN FORESTRY ISSUES SERIES Role of Forests and Forest Products in Carbon Mitigation and Energy Professor in Sustainable Resource Sciences, UW School of Environmental and Forest Sciences PARTICIPANTS Tom Gower ­ Professor, Department of Forest Ecology and Management, University of Wisconsin,Madison, WI Rick

  13. Pursuing Carbon and ForestPursuing Carbon and Forest SustainabilitySustainability

    E-Print Network [OSTI]

    Brown, Sally

    Biomass Energy ProductionIn Forest Biomass Energy Production University of WashingtonCommissioner of Public Lands PeterPeter GoldmarkGoldmark''ss Forest Biomass Energy Initiative Pilot Projects 2009Pilot BioaviationBioaviation Fuel 2011Fuel 2011 #12;3 Forest Biomass Energy InitiativeForest Biomass Energy

  14. Fire and Forest History in Mixed-Conifer Forests of Southwest Colorado

    E-Print Network [OSTI]

    Fire and Forest History in Mixed-Conifer Forests of Southwest Colorado Peter M. Brown, Rocky tree-ring data do we have to reconstruct fire & forest history? Fire scars: Cambial mortality caused Mountain Tree-Ring Research Rosalind Wu, San Juan National Forest Carissa Aoki, Colorado State University

  15. Instructions for use Eurasian J. For. Res. 15-1: 1-8 , 2012 Hokkaido University Forests, EFRC

    E-Print Network [OSTI]

    Tachizawa, Kazuya

    at mitigating air pollution and the change of biodiversity and climate in an integrated manner. A lot of results that the tolerance of surface water to the pollution of Pb has been comparable with forests but aquatic ecosystems protection and carbon sequestration, it is crucial to know the amount of pollutant deposition above which

  16. The Thermal Wake of Kauai Island: Satellite Observations and Numerical Simulations* YANG YANG, SHANG-PING XIE, AND JAN HAFNER

    E-Print Network [OSTI]

    Xie, Shang-Ping

    The Thermal Wake of Kauai Island: Satellite Observations and Numerical Simulations* YANG YANG, SHANG-PING XIE, AND JAN HAFNER International Pacific Research Center, SOEST, University of Hawaii at Manoa, Honolulu, Hawaii (Manuscript received 12 February 2007, in final form 12 December 2007) ABSTRACT

  17. Sandia Energy - Sandia Wake-Imaging System Successfully Deployed...

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

    Wake-Imaging System Successfully Deployed at Scaled Wind Farm Technology Facility Home Renewable Energy Energy SWIFT Facilities Partnership Capabilities News Wind Energy News &...

  18. FOREST INVENTORY Managing Forest Ecosystems

    E-Print Network [OSTI]

    #12;FOREST INVENTORY #12;Managing Forest Ecosystems Volume 10 Series Editors: Klaus von Gadow Georg Superior de Agronomía, Lisbon, Portugal Aims & Scope: Well-managed forests and woodlands are a renewable resource, producing essential raw material with minimum waste and energy use. Rich in habitat and species

  19. Thermal wake/vessel detection technique

    DOE Patents [OSTI]

    Roskovensky, John K. (Albuquerque, NM); Nandy, Prabal (Albuquerque, NM); Post, Brian N (Albuquerque, NM)

    2012-01-10

    A computer-automated method for detecting a vessel in water based on an image of a portion of Earth includes generating a thermal anomaly mask. The thermal anomaly mask flags each pixel of the image initially deemed to be a wake pixel based on a comparison of a thermal value of each pixel against other thermal values of other pixels localized about each pixel. Contiguous pixels flagged by the thermal anomaly mask are grouped into pixel clusters. A shape of each of the pixel clusters is analyzed to determine whether each of the pixel clusters represents a possible vessel detection event. The possible vessel detection events are represented visually within the image.

  20. Helices in the wake of precipitation fronts

    E-Print Network [OSTI]

    Shibi Thomas; Istvan Lagzi; Ferenc Molnar Jr; Zoltan Racz

    2013-08-30

    A theoretical study of the emergence of helices in the wake of precipitation fronts is presented. The precipitation dynamics is described by the Cahn-Hilliard equation and the fronts are obtained by quenching the system into a linearly unstable state. Confining the process onto the surface of a cylinder and using the pulled-front formalism, our analytical calculations show that there are front solutions that propagate into the unstable state and leave behind a helical structure. We find that helical patterns emerge only if the radius of the cylinder R is larger than a critical value R>R_c, in agreement with recent experiments.

  1. Sandia Energy - Wake Imaging Measurement System

    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 RoomPreservation of Fe(II)GeothermalFuel MagnetizationTransportationVideos Home ECRenewableWake

  2. Forest Fire Modeling and Early Detection using Wireless Sensor Networks

    E-Print Network [OSTI]

    Zhang, Richard "Hao"

    Forest Fire Modeling and Early Detection using Wireless Sensor Networks MOHAMED HEFEEDA Simon Fraser University, Canada Forest fires cost millions of dollars in damages and claim many human lives for early detection of forest fires. We first present the key aspects in modeling forest fires. We do

  3. Wake potentials of the ILC Interaction Region

    SciTech Connect (OSTI)

    Novokhatski, A.; /SLAC

    2011-08-16

    The vacuum chamber of the ILC Interaction Region (IR) is optimized for best detector performance. It has special shaping to minimize additional backgrounds due to the metal part of the chamber. Also, for the same reason this thin vacuum chamber does not have water cooling. Therefore, small amounts of power, which may be deposited in the chamber, can be enough to raise the chamber to a high temperature. One of the sources of 'heating' power is the electromagnetic field of the beam. This field diffracts by non-regularities of the beam pipe and excites free-propagating fields, which are then absorbed by the pipe wall. In addition we have a heating power of the image currents due to finite conductivity of the metallic wall. We will discuss these effects as updating the previous results. The conclusions of this report are: (1) The amount of the beam energy loss in IR is almost equal to the energy loss in one ILC (TESLA) accelerating cryo-module; (2) Addition energy spread at IR is very small; (3) Spectrum of the wake fields is limited 300 GHz; (4) Average power of the wake fields excited in IR is 30 W for nominal ILC parameters; and (5) Pulse power in this case is 6 kilowatts.

  4. Using satellite data for mapping offshore wind resources and wakes

    E-Print Network [OSTI]

    (no wind) Horns Rev Offshore Wind Farm Blaavandshuk Met. mast N #12;Wind Horns Rev Wind speed map from · Wake near large offshore wind farms is quantified in space and time · Software for usersUsing satellite data for mapping offshore wind resources and wakes Charlotte Bay Hasager, Merete

  5. Visualization of a fish wake using tobacco mosaic virus

    E-Print Network [OSTI]

    Bush, John W.M.

    Visualization of a fish wake using tobacco mosaic virus David L. Hu, Lucy Mendel, and Brian Chan is that it is harmless to fish, providing a safe alternative for visualizing their wakes. The black neon tetra Fig. 1 of body length 3.6 cm maintains a steady position by flicking its fins and creating vortices. The fish

  6. Coupled wake boundary layer model of wind-farms

    E-Print Network [OSTI]

    Stevens, Richard J A M; Meneveau, Charles

    2014-01-01

    We present and test a coupled wake boundary layer (CWBL) model that describes the distribution of the power output in a wind-farm. The model couples the traditional, industry-standard wake expansion/superposition approach with a top-down model for the overall wind-farm boundary layer structure. The wake expansion/superposition model captures the effect of turbine positioning, while the top-down portion adds the interaction between the wind-turbine wakes and the atmospheric boundary layer. Each portion of the model requires specification of a parameter that is not known a-priori. For the wake model the wake expansion coefficient is required, while the top-down model requires an effective span-wise turbine spacing within which the model's momentum balance is relevant. The wake expansion coefficient is obtained by matching the predicted mean velocity at the turbine from both approaches, while the effective span-wise turbine spacing depends on turbine positioning and thus can be determined from the wake expansion...

  7. Forests, Water and People in the Humid Tropics, ed. M. Bonell and L.A. Bruijnzeel. Published by Cambridge University Press. UNESCO 2005

    E-Print Network [OSTI]

    Chappell, Nick A

    Forests, Water and People in the Humid Tropics, ed. M. Bonell and L.A. Bruijnzeel. Published Minimising the hydrological impact of forest harvesting in Malaysia's rain forests to the use of tracked vehicles ('skidders') and haulage lorries, such extraction is slow and costly

  8. FOREST MONITORING AT THE MARSH-BILLINGS-ROCKEFELLER

    E-Print Network [OSTI]

    Keeton, William S.

    FOREST MONITORING AT THE MARSH-BILLINGS-ROCKEFELLER NATIONAL HISTORICAL PARK. of the Interior, University of Vermont, National Park Service, Rubenstein School of Environment Marsh-Billings-Rockefeller and Natural Resources National Historical Park #12;Forest Monitoring at the Marsh

  9. Forest Products Road Manual: A Handbook for Municipal Officials

    E-Print Network [OSTI]

    New Hampshire, University of

    Forest Products Road Manual: A Handbook for Municipal Officials and The Forest Products Industry: University of New Hampshire Cooperative Extension with support from: Sustainable Forestry Initiative N............................................................................................................................2 Road Access

  10. Waking the Gods: Archaeology and State Power in Porfirian Mexico

    E-Print Network [OSTI]

    Kelly, Larissa Kennedy

    2011-01-01

    in Porfirian Mexico By Larissa Kennedy Kelly A dissertationCopyright 2011 By Larissa Kennedy Kelly Abstract Waking theMexico By Larissa Kennedy Kelly Doctor of Philosophy in

  11. Passive wake detection using seal whisker-inspired sensing

    E-Print Network [OSTI]

    Beem, Heather Rachel

    2015-01-01

    This thesis is motivated by a series of biological experiments that display the harbor seal's extraordinary ability to track the wake of an object several seconds after it has swum by. They do so despite having auditory ...

  12. Ionization-Induced Electron Trapping inUltrarelativistic Plasma Wakes

    SciTech Connect (OSTI)

    Oz, E.; Deng, S.; Katsouleas, T.; Muggli, P.; Barnes, C.D.; Blumenfeld, I.; Decker, F.J.; Emma, P.; Hogan, M.J.; Ischebeck, R.; Iverson, R.H.; Kirby, N.; Krejcik, P.; O'Connell, C.; Siemann, R.H.; Walz, D.; Auerbach, D.; Clayton, C.E.; Huang, C.; Johnson, D.K.; Joshi, C.; /UCLA

    2007-04-06

    The onset of trapping of electrons born inside a highly relativistic, 3D beam-driven plasma wake is investigated. Trapping occurs in the transition regions of a Li plasma confined by He gas. Li plasma electrons support the wake, and higher ionization potential He atoms are ionized as the beam is focused by Li ions and can be trapped. As the wake amplitude is increased, the onset of trapping is observed. Some electrons gain up to 7.6 GeV in a 30.5 cm plasma. The experimentally inferred trapping threshold is at a wake amplitude of 36 GV/m, in good agreement with an analytical model and PIC simulations.

  13. Sandia Energy - CFD-Populated Empirical Turbine Wake Model

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

    parameters that effect tidal turbine wakes, such as yaw angle to incident flow and vertical blockage ratio, may be incorporated as part of future revisions of the CFD populated...

  14. Mechanism for Hypocretin-mediated sleep-to-wake transitions

    E-Print Network [OSTI]

    Hasty, Jeff

    that Hypocretin (Hcrt)-expressing neurons in the lateral hypothalamus promote and stabilize wakefulness in the hypothalamus and brainstem (1, 2). Neurons in the lateral hypothalamus that express hypocretins (Hcrts

  15. Wake Fields in the Super B Factory Interaction Region

    SciTech Connect (OSTI)

    Weathersby, Stephen; Novokhatski, Alexander; /SLAC

    2011-06-02

    The geometry of storage ring collider interaction regions present an impedance to beam fields resulting in the generation of additional electromagnetic fields (higher order modes or wake fields) which affect the beam energy and trajectory. These affects are computed for the Super B interaction region by evaluating longitudinal loss factors and averaged transverse kicks for short range wake fields. Results indicate at least a factor of 2 lower wake field power generation in comparison with the interaction region geometry of the PEP-II B-factory collider. Wake field reduction is a consderation in the Super B design. Transverse kicks are consistent with an attractive potential from the crotch nearest the beam trajectory. The longitudinal loss factor scales as the -2.5 power of the bunch length. A factor of 60 loss factor reduction is possible with crotch geometry based on an intersecting tubes model.

  16. ASYMPTOTIC STABILITY FOR KDV SOLITONS IN WEIGHTED SPACES VIA ITERATION

    E-Print Network [OSTI]

    Raynor, Sarah G.

    Fellow at Wake Forest University and would like to thank the Department of Mathematics at Wake Forest(x - x0(t)) remains small. The study of orbital stability in the energy space H1 began with Benjamin [1

  17. First lunar wake passage of ARTEMIS: Discrimination of wake effects and solar wind fluctuations by 3D hybrid simulations

    E-Print Network [OSTI]

    California at Berkeley, University of

    with the solar wind were found by the IMP-1 satellite (Ness et al., 1964; Ness, 1965). Later, the magnetic field the existence of a lunar wake (Ness et al., 1967). This pioneering mission revealed the low electric

  18. Soil and Water Science Department University of Florida Effects of different soil amendments on the leachate chemistry of pine forest soil

    E-Print Network [OSTI]

    Ma, Lena

    regulations. The pulp and paper industry in the US generates considerable quantities of sludges and ash. Cost-effective and environmentally friendly practices for waste disposal have been a challenge for the industry and for forest sludge and boiler ash from a paper company affect water quality for a forested site in Georgia

  19. Plasma wake field XUV radiation source

    DOE Patents [OSTI]

    Prono, Daniel S. (Los Alamos, NM); Jones, Michael E. (Los Alamos, NM)

    1997-01-01

    A XUV radiation source uses an interaction of electron beam pulses with a gas to create a plasma radiator. A flowing gas system (10) defines a circulation loop (12) with a device (14), such as a high pressure pump or the like, for circulating the gas. A nozzle or jet (16) produces a sonic atmospheric pressure flow and increases the density of the gas for interacting with an electron beam. An electron beam is formed by a conventional radio frequency (rf) accelerator (26) and electron pulses are conventionally formed by a beam buncher (28). The rf energy is thus converted to electron beam energy, the beam energy is used to create and then thermalize an atmospheric density flowing gas to a fully ionized plasma by interaction of beam pulses with the plasma wake field, and the energetic plasma then loses energy by line radiation at XUV wavelengths Collection and focusing optics (18) are used to collect XUV radiation emitted as line radiation when the high energy density plasma loses energy that was transferred from the electron beam pulses to the plasma.

  20. Mid Career Training of Indian Forest Service Officers: International Training Program

    E-Print Network [OSTI]

    Phase III Mid Career Training of Indian Forest Service Officers: International Training Program and Training #12;Acknowledgments The Indian Forest Service Officer Training program coordinators at Colorado University Center for Protected Area Management and Training · Colorado State University Warner College

  1. Adapting and calibration of existing wake models to meet the conditions inside offshore wind farms. Page 1 Adapting and calibration of existing wake models

    E-Print Network [OSTI]

    Adapting and calibration of existing wake models to meet the conditions inside offshore wind farms@emd.dk #12;Adapting and calibration of existing wake models to meet the conditions inside offshore wind farms inside offshore wind farms" has as purpose to improve the existing PARK models for calculating the wake

  2. FORESTS AND WATER. effects of forest

    E-Print Network [OSTI]

    FORESTS AND WATER. effects of forest management on floods, sedimentation, and water supply HENRY FOREST SERVICE GENERAL TECHNICAL REPORT PSW- 18I1976 #12;CONTENTS Page Introduction ................................ 6 Water Inputs .........................................6 Precipitation Measurement

  3. Forest fires, explosions, and random trees Edward Crane

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    Forest fires, explosions, and random trees Edward Crane HIMR, UoB 13th January 2014 #12 and James Martin at the University of Oxford. Edward Crane (HIMR, UoB) Forest fires, explosions, and random trees 13th January 2014 2 / 20 #12;Overview This talk is about the mean field forest fire model

  4. 31 March2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    , including leaving forests untouched, burning wood for energy, and using various solid wood products31 March2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR fuels Earth, Energy & Environment A Yale University-led study has found that using more wood and less

  5. United States Department of Agriculture Forest Service

    E-Print Network [OSTI]

    of the USDA Forest Service, Tahoe Regional Planning Agency, University of California at Davis, University at Davis, the University of Nevada at Reno, and the Desert Research Institute, Reno, Nevada. #12;Lake Tahoe Senator Harry Reid, President Bill Clinton and Vice President Al Gore

  6. Hurricane wake restratification rates of one-, two- and three-dimensional processes

    E-Print Network [OSTI]

    Haney, S.

    The restratification of the cold wakes of Tropical Cyclones Fanapi, Frances, Igor and Katrina are examined based on derived scalings for processes that can restore the hurricane wake toward the precyclone conditions. The ...

  7. "Rethinking the `Forests Well-being Nexus': a social theoretical approach"

    E-Print Network [OSTI]

    of Knowledge 3. Forests and the Transmission of Knowledge 4. Forests and the Preservation of Heritage 5 of Knowledge #12;Forests and the Preservation of Heritage "The forest of Penkelli...aboute 500 acres of woodde Staddon Department of Geography & Environmental Management University of the West of England, Bristol

  8. Wake models are used to improve predictions of Annual Energy Production (AEP) of wind farms.

    E-Print Network [OSTI]

    Daraio, Chiara

    measurements in the ETHZ facility compare well with measurements at the Horns Rev offshore wind farm·Wake models are used to improve predictions of Annual Energy Production (AEP) of wind farms. ·Wake and wind turbine wakes in large windfarms offshore, Wind Energy 12, pp. 431-444, 2009. [2] L.P. Chamorro

  9. Wind resources and wind farm wake effects offshore observed from satellite

    E-Print Network [OSTI]

    Wind resources and wind farm wake effects offshore observed from satellite Charlotte Bay Hasager to quantify the wake effect at two large offshore wind farms in Denmark. It is found that the wake velocity further. There is fast progress on planning and installation of offshore wind farms in the European waters

  10. Modelling of offshore wind turbine wakes with the wind farm program FLaP

    E-Print Network [OSTI]

    Heinemann, Detlev

    Modelling of offshore wind turbine wakes with the wind farm program FLaP Bernhard Lange(1) , Hans from the Danish offshore wind farm Vindeby. Vertical wake profiles and mean turbulence intensities are not modelled satisfactorily. Keywords: Offshore, wind farm, wake model, Vindeby, turbulence intensity

  11. PREDICTION OF WAVES, WAKES AND OFFSHORE WIND THE RESULTS OF THE POW'WOW PROJECT

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PREDICTION OF WAVES, WAKES AND OFFSHORE WIND ­ THE RESULTS OF THE POW'WOW PROJECT Gregor Giebel: The POWWOW project (Prediction of Waves, Wakes and Offshore Wind, a EU Coordination Action) aimed to develop. Keywords: Wind resource, wave resource, offshore, short-term prediction, wakes 1 Introduction The nearly

  12. Feasibility and Benefits of Passive RFID Wake-up Radios for Wireless Sensor Networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

    , Rochester, NY, USA e-mail:{ba,demirkol,wheinzel}@ece.rochester.edu Abstract--Energy efficiency is one to reduce idle listening and save energy. Compared to duty cycling, wake-up radios save more energy nodes with passive RFID wake-up radios and measure their energy cost and wake-up probability. Then, we

  13. PHYSICAL REVIEW E 88, 022141 (2013) Helices in the wake of precipitation fronts

    E-Print Network [OSTI]

    Rácz, Zoltán

    2013-01-01

    PHYSICAL REVIEW E 88, 022141 (2013) Helices in the wake of precipitation fronts Shibi Thomas,1 of the emergence of helices in the wake of precipitation fronts is presented. The precipitation dynamics studies [7,8] in which helical precipitation patterns were observed in the wake of moving reaction

  14. IN THE WAKE OF THE VIKINGS Scotland/Norway/Denmark

    E-Print Network [OSTI]

    Toronto, University of

    IN THE WAKE OF THE VIKINGS Scotland/Norway/Denmark Hebridean Islands/Orkney Islands/Cruising the Norwegian Fjords 7 Ulvik, Norway/Hardangerfjord, 8 At Sea 9 Copenhagen, Denmark/Disembark ship. There is a library, Internet salon, Sun Deck, swimming pool, beauty salon, spa, Turkish bath-style steam room, full

  15. Review of Wind Turbine Wake Models and Future Directions (Presentation)

    SciTech Connect (OSTI)

    Churchfield, M. J.

    2013-08-01

    This presentation gives a brief overview to wind turbine wake modeling, ranging from models used in the 1980s up to the present. The presentation shows the strengths and weaknesses of various models and discusses the needs of the wind energy industry and research sectors. Both power production and loads analysis are discussed.

  16. Non-linear Plasma Wake Growth of Electron Holes

    E-Print Network [OSTI]

    Hutchinson, I H; Zhou, C

    2015-01-01

    An object's wake in a plasma with small Debye length that drifts \\emph{across} the magnetic field is subject to electrostatic electron instabilities. Such situations include, for example, the moon in the solar wind wake and probes in magnetized laboratory plasmas. The instability drive mechanism can equivalently be considered drift down the potential-energy gradient or drift up the density-gradient. The gradients arise because the plasma wake has a region of depressed density and electrostatic potential into which ions are attracted along the field. The non-linear consequences of the instability are analysed in this paper. At physical ratios of electron to ion mass, neither linear nor quasilinear treatment can explain the observation of large-amplitude perturbations that disrupt the ion streams well before they become ion-ion unstable. We show here, however, that electron holes, once formed, continue to grow, driven by the drift mechanism, and if they remain in the wake may reach a maximum non-linearly stable...

  17. FOREST WATCH DATA BOOK 2012-2013 Published February 2014

    E-Print Network [OSTI]

    Pringle, James "Jamie"

    by Forest Watch Copyright © 2014 University of New Hampshire, Durham, NH Funded by the New Hampshire Space-level ozone on the health of New England's forests. K-12 students, teachers and University of New Hampshire to see a major loss of needles throughout New England, particularly in central Vermont, New Hampshire

  18. Review: Forest Economics

    E-Print Network [OSTI]

    Helman, Daniel S.

    2015-01-01

    Review: Forest Economics By Daowei Zhang and Peter H. PearsePearse, Peter H. Forest Economics. Vancouver, BC: UBC Press,Zhang and Pearse's Forest Economics presents a clear and

  19. Climate change cripples forests

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

    Climate Change Cripples Forests Climate change cripples forests A team of scientists concluded that in the warmer and drier Southwest of the near future, widespread tree mortality...

  20. Climate change cripples forests

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

    Climate change cripples forests Climate change cripples forests A team of scientists concluded that in the warmer and drier Southwest of the near future, widespread tree mortality...

  1. Surface wake in the random-phase approximation

    SciTech Connect (OSTI)

    Garcia de Abajo, F.J. ); Echenique, P.M. )

    1993-11-01

    The scalar-electric-potential distribution set up by an ion traveling in the vicinity of a plane solid-vacuum interface, that is, the surface-wake potential, is investigated with the specular-reflection model to describe the response of the surface and with the random-phase approximation for the dielectric function of the bulk material. This permits us to address the study of the low-velocity surface wake: the static potential is found to have a dip at the position of the ion; that dip is shifted towards the direction opposite to the velocity vector for velocities smaller than the threshold of creation of plasmons ([approx]1.3[ital v][sub [ital F

  2. Semiclassical eigenenergies in the wake of fast ions in solids

    SciTech Connect (OSTI)

    Mueller, J.; Burgdoerfer, J.; Noid, D.W. (Tennessee Univ., Knoxville, TN (USA). Dept. of Physics Oak Ridge National Lab., TN (USA))

    1990-01-01

    We compare the semiclassical and quantum mechanical eigenenergies of an electron in the wake of a fast, highly charged ion traversing a solid. The classical dynamics of this system shows a transition from regular to chaotic motion as a function of the binding energy. The transition can also be seen in the quantal spectra. We find evidence for a connection between bifurcation of tori and disorder in the energy level sequences. 21 refs., 4 figs.

  3. PACIFIC SOUTHWEST FOREST SERVICE

    E-Print Network [OSTI]

    Columbia, Canada. ACKNOWLEDGMENTS I thank Lula E. Greene, Pacific Southwest Forest and Range Experi ment

  4. Wake and wave resistance on viscous thin films

    E-Print Network [OSTI]

    Ledesma-Alonso, René; Salez, Thomas; Raphaël, Elie

    2015-01-01

    The effect of an external pressure disturbance, being displaced with a constant speed along the free surface of a viscous thin film, is studied theoretically in the lubrication approximation in one- and two-dimensional geometries. In the comoving frame, the imposed pressure field creates a stationary deformation of the interface - a wake - that spatially vanishes in the far region. The shape of the wake and the way it vanishes depend on both the speed and size of the external source and the properties of the film. The wave resistance, namely the force that has to be externally furnished in order to maintain the wake, is analysed in details. For finite-size pressure disturbances, it increases with the speed, up to a certain transition value above which a monotonic decrease occurs. The role of the horizontal extent of the pressure field is studied as well, revealing that for a smaller disturbance the latter transition occurs at higher speed. Eventually, for a Dirac pressure source, the wave resistance either sa...

  5. L.R. Hutyra, Page 1 of 10, 2/15/14 BOSTON UNIVERSITY

    E-Print Network [OSTI]

    Hutyra, Lucy R.

    -1999 University of Washington B.S., College of Forest Resources, Forest Ecology Peat Dome with a deforested Peat Dome in Borneo (PI). National Science

  6. Regulatory Reform in the Wake of the Financial Crisis of 2007—2008

    E-Print Network [OSTI]

    Lo, Andrew W.

    Purpose – The purpose of this paper is to analyse regulatory reform in the wake of the financial crisis of 2007-2008.

  7. Sandia Energy - The Influence of Rotor Blade Design on Wake Developmen...

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

    Influence of Rotor Blade Design on Wake Development Home Renewable Energy Energy SWIFT Facilities News Wind Energy News & Events Systems Analysis Systems Engineering The Influence...

  8. Optimal rotary control of the cylinder wake using POD Reduced Order Model

    E-Print Network [OSTI]

    Bergmann, Michel

    Optimal rotary control of the cylinder wake using POD Reduced Order Model Michel Bergmann, Laurent frequently in engineering computations) obtained by spatial discretization of the governing equations need

  9. High-Efficiency Absorber for Damping the Transverse Wake Fields

    SciTech Connect (OSTI)

    Novokhatski, A.; Seeman, J.; Weathersby, S.; /SLAC

    2007-02-28

    Transverse wake fields generated by intense beams may propagate long distances in the vacuum chamber and dissipate power in different shielded elements such as bellows, vacuum valves or vacuum pumps. Induced heating in these elements may be high enough to deteriorate vacuum conditions. We have developed a broadband water-cooled bellows-absorber to capture and damp these harmful transverse fields without impacting the longitudinal beam impedance. Experimental results at the PEP-II SLAC B-factory demonstrate high efficiency of this device. This absorber may be useful in other machines like synchrotron light sources or International Linear Collider.

  10. Imaging doppler lidar for wind turbine wake profiling

    DOE Patents [OSTI]

    Bossert, David J.

    2015-11-19

    An imaging Doppler lidar (IDL) enables the measurement of the velocity distribution of a large volume, in parallel, and at high spatial resolution in the wake of a wind turbine. Because the IDL is non-scanning, it can be orders of magnitude faster than conventional coherent lidar approaches. Scattering can be obtained from naturally occurring aerosol particles. Furthermore, the wind velocity can be measured directly from Doppler shifts of the laser light, so the measurement can be accomplished at large standoff and at wide fields-of-view.

  11. Note on Structure Formation from Cosmic String Wakes

    E-Print Network [OSTI]

    Duplessis, Francis

    2013-01-01

    The search for cosmic strings has been of renewed interest with the advent of precision cosmology. In this note we give a quantitative description of the nonlinear matter density fluctuations that can form from a scaling network of cosmic string wakes. Specifically, we compute the distribution of dark matter halos. These halos would possess strong correlations in position space that should have survived until today. We also discuss the challenges involved in their detection due to their small size and the complex dynamics of their formation.

  12. Wake County, North Carolina: 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:EA EISTJThin FilmUnitedVairexVertVillageVitexWaco, Texas:InformationWake

  13. Biomass Potentials from California Forest and Shrublands Including Fuel

    E-Print Network [OSTI]

    Biomass Potentials from California Forest and Shrublands Including Fuel Reduction Potentials-04-004 February 2005 Revised: October 2005 Arnold Schwarzenegger, Governor, State of California #12;Biomass Tiangco, CEC Bryan M. Jenkins, University of California #12;Biomass Potentials from California Forest

  14. Main Campus Urban Forest and Landscape Management Policy Policy Statement

    E-Print Network [OSTI]

    Stuart, Steven J.

    Main Campus Urban Forest and Landscape Management Policy Policy Statement: Clemson University and recreation. This Main Campus Urban Forest and Landscape Management Policy enables that commitment through procedures and requirements for achieving the purpose of this policy and its implementation ("Main Campus

  15. Contributed Paper Response of a Reptile Guild to Forest Harvesting

    E-Print Network [OSTI]

    Todd, Brian

    the response of small snakes to forest harvesting in the Coastal Plain of the southeastern United States. We. ANDREWS Savannah River Ecology Laboratory, University of Georgia, Drawer E, Aiken, SC 29802, U species such as small-bodied snakes. We created 4 replicated forest-management landscapes to determine

  16. Protecting climate with forests.

    E-Print Network [OSTI]

    2008-01-01

    Changing feedbacks in the climate–biosphere system Front.313–32 Bonan G B 2008 Forests and climate change: forcings,feedbacks, and the climate benefits of forests Science

  17. MECS 2006- Forest Products

    Broader source: Energy.gov [DOE]

    Manufacturing Energy and Carbon Footprint for Forest Products (NAICS 321, 322) Sector with Total Energy Input, October 2012 (MECS 2006)

  18. FACTS II (Aspen FACE) Facility and Harshaw Forest Experimental Farm Facility

    E-Print Network [OSTI]

    ;Project Name: Forest Atmosphere Carbon Transfer and Storage (FACTS-II) The Aspen Free-air CO2 and O3 Enrichment (FACE) Project. Project Number: Site: Harshaw Forest Experimental Farm (HFEF) USDA Forest ServiceUniversity Brookhaven National Laboratory Proposed Dates Beginning Date: May 1998 of Project: Ending Date: October 15

  19. Existence of a stationary distribution for multi-dimensional infinite volume forest-fire processes

    E-Print Network [OSTI]

    Boyer, Edmond

    Existence of a stationary distribution for multi-dimensional infinite volume forest-fire processes A. Stahl University of Toulouse, France Abstract. Consider the following forest-fire process of this paper is to show the existence of a stationary distribution for forest- fire processes on Zd , for d 2

  20. Global Forests Syllabus -1 GLOBAL FORESTS

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    , and conservation. Another explores ongoing strategies that seek to sustain forests through markets and other (environmental, socioeconomic and political) under which forest products are harvested and transformed. A variety stakeholders & power Reading comments 18 Changing scenarios Reading comments 20 Costs, benefits

  1. Forest Resources and Management

    E-Print Network [OSTI]

    the forest resource. Our aim is that British forests ­ from their creation to maturity and regeneration and harvesting, and the physical properties of stands, trees and timber. Scope of our work Our research focuses expertise in forecasting forest growth is now applied to carbon assessment and management. We also work

  2. Forest Research Coporate Plan

    E-Print Network [OSTI]

    Forest Research Coporate Plan 2006­2009 The research agency of the Forestry Commission #12;Forest Research Corporate Plan 2006­2009 1Corporate Plan 2006­2009 #12;Chief Executive Professor Jim Lynch Forest Research Alice Holt Lodge Farnham Surrey GU10 4LH Tel: 01420 22255 E-mail: research

  3. Forest Research Annual Report

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2000-2001 An agency of the Forestry Commission #12-SMITH Chief Research Officer Forest Research Members DR A.R. GRIFFIN Renewable Resources Division Shell Research Organisation Spring 2001 Advisory Committee on Forest Research Chief Executive Chief Research

  4. Forest Research: Climate Change

    E-Print Network [OSTI]

    Forest Research: Climate Change projects Forest Research is part of the Forestry Commission of climate change-related research is wide-ranging, covering impact assessment and monitoring, adaptation around a quarter of its research budget with Forest Research on climate change and related programmes

  5. Prince George Forest Region

    E-Print Network [OSTI]

    Coxson, Darwyn

    Prince George Forest Region Forest Resources & Practices Team May 1999 Note #PG-20 · ExtensionAssociate,UniversityofNorthern BritishColumbia 2 MSc, RPBio, Silvifauna Research, Prince George, BC 3 PhD, R.M. Sagar and Associates, Prince George, BC #12;Ministry of Forests, 5th Floor, 1011 - 4th Avenue, Prince George, BC V2L 3H9

  6. Optimal Sleep-Wake Scheduling for Energy Harvesting Smart Mobile Devices

    E-Print Network [OSTI]

    Huang, Longbo

    harvesting technologies can likely be a remedy for the poor battery performance of the smart devicesOptimal Sleep-Wake Scheduling for Energy Harvesting Smart Mobile Devices Longbo Huang Institute develop optimal sleep/wake scheduling algorithms for smart mobile devices that are powered by finite

  7. Diversity and Noise Effects in a Model of Homeostatic Regulation of the Sleep-Wake Cycle

    E-Print Network [OSTI]

    Toral, Raúl

    Diversity and Noise Effects in a Model of Homeostatic Regulation of the Sleep-Wake Cycle Marco is introduced and used to systematically study the generalized model for different levels of noise and diversity R (2012) Diversity and Noise Effects in a Model of Homeostatic Regulation of the Sleep- Wake Cycle

  8. Optimal Sleep-Wake Policies for an Energy Harvesting Sensor Node

    E-Print Network [OSTI]

    Sharma, Vinod

    devices are solar cells, wind turbines and piezo-electric cells, which extract energy from the environmentOptimal Sleep-Wake Policies for an Energy Harvesting Sensor Node Vinay Joseph, Vinod Sharma with an energy harvesting source. In any slot, the sensor node is in one of two modes: Wake or Sleep

  9. Effect of unsteady wake passing frequency on boundary layer transition on the concave surface of a curved plate 

    E-Print Network [OSTI]

    Read, Robert Kevin

    1997-01-01

    The unsteady boundary layer behavior on the concave surface of a curved plate is investigated. Detailed experimental investigations are carried out to study the effect of unsteady wakes on the boundary layer transition under varying wake passing...

  10. Forest Clearing Among Farm Households in the Maya Biosphere Reserve*

    E-Print Network [OSTI]

    Lopez-Carr, David

    Forest Clearing Among Farm Households in the Maya Biosphere Reserve* David L. Carr University, Pete´n, to agri- cultural settlement (Bilsborrow and Carr 2001). Since the southern half

  11. Kinematic studies of transport across an island wake, with application to the Canary islands

    E-Print Network [OSTI]

    Mathias Sandulescu; Emilio Hernandez-Garcia; Cristobal Lopez; Ulrike Feudel

    2006-05-29

    Transport from nutrient-rich coastal upwellings is a key factor influencing biological activity in surrounding waters and even in the open ocean. The rich upwelling in the North-Western African coast is known to interact strongly with the wake of the Canary islands, giving rise to filaments and other mesoscale structures of increased productivity. Motivated by this scenario, we introduce a simplified two-dimensional kinematic flow describing the wake of an island in a stream, and study the conditions under which there is a net transport of substances across the wake. For small vorticity values in the wake, it acts as a barrier, but there is a transition when increasing vorticity so that for values appropriate to the Canary area, it entrains fluid and enhances cross-wake transport.

  12. Evaluating undeveloped urban forest resources using color infrared imagery 

    E-Print Network [OSTI]

    Snelgrove, Robert Todd

    2002-01-01

    EVALUATING UNDEVELOPED URBAN FOREST RESOURCES USING COLOR INFRARED IMAGERY A Thesis by ROBERT TODD SNELGROVE 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 2002 Major Subject: Forestry EVALUATING UNDEVELOPED URBAN FOREST RESOURCES USING COLOR INFRARED IMAGERY A Thesis by ROBERT TODD SNELGROVE Submitted to Texas A&M University in partial fulfillment of the requirements...

  13. Energy Spread Reduction of Electron Beams Produced via Laser Wake

    SciTech Connect (OSTI)

    Pollock, B

    2012-03-19

    Laser wakefield acceleration of electrons holds great promise for producing ultra-compact stages of GeV scale, high quality electron beams for applications such as x-ray free electron lasers and high energy colliders. Ultra-high intensity laser pulses can be self-guided by relativistic plasma waves over tens of vacuum diffraction lengths, to give >1 GeV energy in cm-scale low density plasma using ionization-induced injection to inject charge into the wake at low densities. This thesis describes a series of experiments which investigates the physics of LWFA in the self-guided blowout regime. Beginning with high density gas jet experiments the scaling of the LWFA-produced electron beam energy with plasma electron density is found to be in excellent agreement with both phenomenological theory and with 3-D PIC simulations. It is also determined that self-trapping of background electrons into the wake exhibits a threshold as a function of the electron density, and at the densities required to produce electron beams with energies exceeding 1 GeV a different mechanism is required to trap charge into low density wakes. By introducing small concentrations of high-Z gas to the nominal He background the ionization-induced injection mechanism is enabled. Electron trapping is observed at densities as low as 1.3 x 10{sup 18} cm{sup -3} in a gas cell target, and 1.45 GeV electrons are demonstrated for the first time from LWFA. This is currently the highest electron energy ever produced from LWFA. The ionization-induced trapping mechanism is also shown to generate quasi-continuous electron beam energies, which is undesirable for accelerator applications. By limiting the region over which ionization-induced trapping occurs, the energy spread of the electron beams can be controlled. The development of a novel two-stage gas cell target provides the capability to tailor the gas composition in the longitudinal direction, and confine the trapping process to occur only in a limited, defined region. Using this technique a 460 MeV electron beam was produced with an energy spread of 5%. This technique is directly scalable to multi-GeV electron beam generation with sub-percent energy spreads.

  14. Soil-site relationships to photodelineated forest types 

    E-Print Network [OSTI]

    King, Dale Robert

    1975-01-01

    to as the Southeastern Evergreen Forest (Braun, 1950). The forest is a mixed woodland dominated by loblolly pine and numerous hardwoods such as southern red oak, post oak, water oak, sweetgum, blackgun, and winged elm. The forest type map of the study sites within... Department at Texas A(M University and the Statistical Analysis System written by Anthony Barr and James Goodnight at North Carolina State University. The Texas A(M IBM 360, Model 65 computer was utilized for all mathematical and statistical analysis...

  15. COAXIAL TWO-CHANNEL DIELECTRIC WAKE FIELD ACCELERATOR

    SciTech Connect (OSTI)

    Hirshfield, Jay L.

    2013-04-30

    Theory, computations, and experimental apparatus are presented that describe and are intended to confirm novel properties of a coaxial two-channel dielectric wake field accelerator. In this configuration, an annular drive beam in the outer coaxial channel excites multimode wakefields which, in the inner channel, can accelerate a test beam to an energy much higher than the energy of the drive beam. This high transformer ratio is the result of judicious choice of the dielectric structure parameters, and of the phase separation between drive bunches and test bunches. A structure with cm-scale wakefields has been build for tests at the Argonne Wakefield Accelerator Laboratory, and a structure with mm-scale wakefields has been built for tests at the SLAC FACET facility. Both tests await scheduling by the respective facilities.

  16. Forest Trends Report Series Forest Trade and Finance April 2014

    E-Print Network [OSTI]

    Forest Trends Report Series Forest Trade and Finance April 2014 Forest Products Trade between China. Whiletheglobaleconomicdownturnaffectedconsumptioninmanycountries,China'stradewithAfricaremained mostly unaffected. In particular, commodities, such as oil and gas

  17. Graduate Programs Auburn University

    E-Print Network [OSTI]

    Science Forest Ecology and Forest Fire Science http: Forest Biology and Ecology Forest Economics, Management and Policy Forest Biometrics Forest Engineering/Forest Harvesting Forest Products and Wood Science and Urban Forestry http

  18. United States Forest Service - Forest Service Environmental Appeals...

    Open Energy Info (EERE)

    Appeals Responses Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: United States Forest Service - Forest Service Environmental Appeals Responses...

  19. Analysis of chosen plaintext attacks on the WAKE Stream Cipher Marina Pudovkina

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    , and relies on repeated table use and having a large state space. WAKE works in CFB mode; the previous is a family of algorithms indexed by a positive integer n (in practice n=8). It works in CFB mode

  20. Effects of upstream wake phasing on the performance of transonic compressors

    E-Print Network [OSTI]

    Nolan, Sean Patrick Rock

    2009-01-01

    The effect of the upstream wake phase on the work input (i.e., rise in stagnation enthalpy across the blade row) of a transonic rotor is examined computationally and analytically. It is found that the compressor work depends ...

  1. The 21 cm Signature of Shock Heated and Diffuse Cosmic String Wakes

    E-Print Network [OSTI]

    Oscar F. Hernandez; Robert H. Brandenberger

    2012-07-31

    The analysis of the 21 cm signature of cosmic string wakes is extended in several ways. First we consider the constraints on $G\\mu$ from the absorption signal of shock heated wakes laid down much later than matter radiation equality. Secondly we analyze the signal of diffuse wake, that is those wakes in which there is a baryon overdensity but which have not shock heated. Finally we compare the size of these signals compared to the expected thermal noise per pixel which dominates over the background cosmic gas brightness temperature and find that the cosmic string signal will exceed the thermal noise of an individual pixel in the Square Kilometre Array for string tensions $G\\mu > 2.5 \\times 10^{-8}$.

  2. The effect of periodic-unsteady wakes, curvature, and pressure gradient on boundary-layer transition 

    E-Print Network [OSTI]

    Radke, Robert Edward

    1994-01-01

    periodic-unsteady wakes. In addition, a turbomachinery cascade test facility with periodic-unsteady inlet flow was designed and manufactured for the next generation of research in this area....

  3. The 21 cm signature of shock heated and diffuse cosmic string wakes

    SciTech Connect (OSTI)

    Hernández, Oscar F.; Brandenberger, Robert H. E-mail: rhb@physics.mcgill.ca

    2012-07-01

    The analysis of the 21 cm signature of cosmic string wakes is extended in several ways. First we consider the constraints on G? from the absorption signal of shock heated wakes laid down much later than matter radiation equality. Secondly we analyze the signal of diffuse wake, that is those wakes in which there is a baryon overdensity but which have not shock heated. Finally we compare the size of these signals to the expected thermal noise per pixel which dominates over the background cosmic gas brightness temperature and find that the cosmic string signal will exceed the thermal noise of an individual pixel in the Square Kilometre Array for string tensions G? > 2.5 × 10{sup ?8}.

  4. Modeling and analysis of a maneuvering aircraft and cable towed body with wake effects

    E-Print Network [OSTI]

    Hall, Jacob Thomas

    2010-01-01

    This thesis report covers the analysis and modeling of a cable towed endbody that incorporates an aircraft, wake effects, a towline, and a tow body. The aircraft is modeled as a generic tactical aircraft which is able to ...

  5. Experimental study of the effects of wakes on separation in low pressure turbine flow 

    E-Print Network [OSTI]

    O?ztu?rk, Burak

    2003-01-01

    the underlying physics of the inception, onset, and extent of the separation zone. A detailed experimental study on the behavior of the separation zone on the suction surface of a highly loaded LPTblade under periodic unsteady wake flow is presented...

  6. Kinetic instabilities in the lunar wake: ARTEMIS observations J. B. Tao,1

    E-Print Network [OSTI]

    Bonnell, John W.

    with little disturbance [Ness et al., 1967; Ness, 1972]. [3] The density gradient between the lunar wake and the Apollo program in the 1960s and 1970s (see Ness [1972] and Schubert and Lichtenstein [1974] for review

  7. Effect of nonlinear chirped Gaussian laser pulse on plasma wake field generation

    SciTech Connect (OSTI)

    Afhami, Saeedeh; Eslami, Esmaeil

    2014-08-15

    An ultrashort laser pulse propagating in plasma can excite a nonlinear plasma wake field which can accelerate charged particles up to GeV energies within a compact space compared to the conventional accelerator devices. In this paper, the effect of different kinds of nonlinear chirped Gaussian laser pulse on wake field generation is investigated. The numerical analysis of our results depicts that the excitation of plasma wave with large and highly amplitude can be accomplished by nonlinear chirped pulses. The maximum amplitude of excited wake in nonlinear chirped pulse is approximately three times more than that of linear chirped pulse. In order to achieve high wake field generation, chirp parameters and functions should be set to optimal values.

  8. PHILADELPHIA UNIVERSITY PHILADELPHIA UNIVERSITY

    E-Print Network [OSTI]

    PHILADELPHIA UNIVERSITY . . . #12;PHILADELPHIA UNIVERSITY . . : : (132) . : . . . : . #12;PHILADELPHIA UNIVERSITY

  9. Department of Forest Resource Management Annual Report 2009

    E-Print Network [OSTI]

    Ecosystem Modeling 14 Forest Planning 15 Forest Techology 16 Forest in Rural Studies 17 International

  10. Department of Forest Resource Management Annual Report 2010

    E-Print Network [OSTI]

    Sensing 13 Forest Inventory and Empirical Ecosystem Modeling 14 Forest Planning 15 Forest Techology 16

  11. Forest Research Annual Report

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2005­2006 The research agency of the Forestry Commission #12;Forest Research Annual Report and Accounts I 2005­2006 Together with the Comptroller and Auditor to be printed 24 July 2006 HC 1407 The research agency of the Forestry Commission Edinburgh: The Stationery

  12. CERTIFIED FOREST PRODUCTS MARKETS

    E-Print Network [OSTI]

    industry sectors with PEFC C-o-C certification June 2003 Construction 1% Pulp & paper 4% Wood manufacturing% Sawnwood 13% Panels 9% RW & primary 5% Windows & doors 5% Pulp & paper 5% DIY products 6% Trade & retailers 5% Other primary forest industries 6% Sawmilling 39% Timber trade 43% #12;Forest industry sectors

  13. Water Resources Forests & Water

    E-Print Network [OSTI]

    Water Resources Forests & Water More than half of the nation's freshwater supply originates on forestland. Healthy and sustainable forests can help ensure a continuous supply of clean and abundant water. Not only does forestland provide the cleanest water of any land use, it also helps absorb rainfall

  14. Methods for estimating wake flow and effluent dispersion near simple block-like buildings

    SciTech Connect (OSTI)

    Hosker, R.P. Jr.

    1981-05-01

    This report is intended as an interim guide for those who routinely face air quality problems associated with near-building exhaust stack placement and height, and the resulting concentration patterns. Available data and methods for estimating wake flow and effluent dispersion near isolated block-like structures are consolidated. The near-building and wake flows are described, and quantitative estimates for frontal eddy size, height and extent of roof and wake cavities, and far wake behavior are provided. Concentration calculation methods for upwind, near-building, and downwind pollutant sources are given. For an upwind source, it is possible to estimate the required stack height, and to place upper limits on the likely near-building concentration. The influences of near-building source location and characteristics relative to the building geometry and orientation are considered. Methods to estimate effective stack height, upper limits for concentration due to flush roof vents, and the effect of changes in rooftop stack height are summarized. Current wake and wake cavity models are presented. Numerous graphs of important expressions have been prepared to facilitate computations and quick estimates of flow patterns and concentration levels for specific simple buildings. Detailed recommendations for additional work are given.

  15. Forest Estate Modelling (Part 2) Forest Research Institute, Rotorua

    E-Print Network [OSTI]

    García, Oscar

    adequate models of growth and yield, and data on costs and prices, it is not too difficult to find "optiForest Estate Modelling (Part 2) O. Garcia Forest Research Institute, Rotorua The Problem Given after centuries of continued forest management, exist in Europe. Some countries still base their forest

  16. Lodgepole Pine Forest Ecology A foundation for future forest management

    E-Print Network [OSTI]

    is Very large patches of even-aged forests varying in composition from Fire Regimes in Lodgepole Pine Forests The historic fire regime is dominated by severe, stand-replacing fires. These fires occur at longLodgepole Pine Forest Ecology A foundation for future forest management Claudia Regan ­ Regional

  17. FOREST CERTIFICATION:FOREST CERTIFICATION: BIOLOGICAL BENEFITS ORBIOLOGICAL BENEFITS OR

    E-Print Network [OSTI]

    Gray, Matthew

    Stewardship Council (FSC) ­ 257 million acres Programme for the Endorsement of Forest Certification (PEFC

  18. Challenges in elevated CO2 experiments on forests

    E-Print Network [OSTI]

    Oren, Ram

    of Illinois, Urbana-Champaign, IL, USA 4 Technical University of Denmark, Roskilde, Denmark 5 University concentrations in future experiments to better predict the effects of climate change? Plantations and natural. Forest ecosystems under climate change Carbon dioxide (CO2) is the most important greenhouse gas emitted

  19. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    of forest stands is valuable for studies of the physical environment. Energy balance research centers on howPACIFIC SOUTHWEST Forest and Range Experiment Station FOREST SERVICE U.S. DEPARTMENT in relation to climatic and stand variables USDA FOREST SERVICE RESEARCH PAPER PSW- 71 /1971 #12;CONTENTS

  20. The Health of Colorado's Forests

    E-Print Network [OSTI]

    The Health of Colorado's Forests 2009 Report Special Issue: Threats to Colorado's Current and Future Forest Resources #12;Acknowledgements William M. Ciesla, Forest Health Management International), is the primary author of the 2009 Report on the Health of Colorado's Forests. Thanks to the following Colorado

  1. Howland Forest David Hollinger, USDA Forest Service

    E-Print Network [OSTI]

    ; · An old-growth forest is a unique ecological endpoint · Long-term record of carbon is on factors that regulate long term carbon storage · Infrastructure · Topography experiment (21 ha) Canopy application, 18 kg N ha-1 y-1 (NH4NO3) C Sequestration Assessed in 3 Ways: · Eddy

  2. Forecasting the probability of forest fires in Northeast Texas 

    E-Print Network [OSTI]

    Wadleigh, Stuart Allen

    1972-01-01

    FORECASTING THE PROBABILITY OF FOREST FIRES IN NORTHEAST TEXAS A Thesis by STUART ALLEN WADLEIGH Submit ted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... December 1972 Major Subject: Meteorology FORECASTING THE PROBABILITY OF FOREST FIRES IN NORTHEAST TEXAS A Thesis by STUART ALLEN WADLEIGH Approved as to style and content by: ( irman of ee) (Head of Depar nt) (Member) (Member) December 1972 c...

  3. CHAOCHAO DUN1 , N. A. W. HOLZWARTH2

    E-Print Network [OSTI]

    Holzwarth, Natalie

    for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, NC, 27109 , USA 2.Department of Physics, Wake Forest University, Winston-Salem, NC, 27109 , USA Center, for alloys with x = 2, the energy difference between the lowest and highest energy O arrangements is 0.25 e

  4. Synergistic Effects of Turbine Wakes and Atmospheric Stability on Power Production at an Onshore Wind Farm

    SciTech Connect (OSTI)

    Wharton, S; Lundquist, J K; Marjanovic, N

    2012-01-25

    This report examines the complex interactions between atmospheric stability and turbine-induced wakes on downwind turbine wind speed and power production at a West Coast North American multi-MW wind farm. Wakes are generated when the upwind flow field is distorted by the mechanical movement of the wind turbine blades. This has two consequences for downwind turbines: (1) the downwind turbine encounters wind flows with reduced velocity and (2) the downwind turbine encounters increased turbulence across multiple length scales via mechanical turbulence production by the upwind turbine. This increase in turbulence on top of ambient levels may increase aerodynamic fatigue loads on the blades and reduce the lifetime of turbine component parts. Furthermore, ambient atmospheric conditions, including atmospheric stability, i.e., thermal stratification in the lower boundary layer, play an important role in wake dissipation. Higher levels of ambient turbulence (i.e., a convective or unstable boundary layer) lead to higher turbulent mixing in the wake and a faster recovery in the velocity flow field downwind of a turbine. Lower levels of ambient turbulence, as in a stable boundary layer, will lead to more persistent wakes. The wake of a wind turbine can be divided into two regions: the near wake and far wake, as illustrated in Figure 1. The near wake is formed when the turbine structure alters the shape of the flow field and usually persists one rotor diameter (D) downstream. The difference between the air inside and outside of the near wake results in a shear layer. This shear layer thickens as it moves downstream and forms turbulent eddies of multiple length scales. As the wake travels downstream, it expands depending on the level of ambient turbulence and meanders (i.e., travels in non-uniform path). Schepers estimates that the wake is fully expanded at a distance of 2.25 D and the far wake region begins at 2-5 D downstream. The actual distance traveled before the wake recovers to its inflow velocity is dependent on the amount ambient turbulence, the amount of wind shear, and topographical and structural effects. The maximum velocity deficit is estimated to occur at 1-2 D but can be longer under low levels of ambient turbulence. Our understanding of turbine wakes comes from wind tunnel experiments, field experiments, numerical simulations, and from studies utilizing both experimental and modeling methods. It is well documented that downwind turbines in multi-Megawatt wind farms often produce less power than upwind turbine rows. These wake-induced power losses have been estimated from 5% to up to 40% depending on the turbine operating settings (e.g., thrust coefficient), number of turbine rows, turbine size (e.g., rotor diameter and hub-height), wind farm terrain, and atmospheric flow conditions (e.g., ambient wind speed, turbulence, and atmospheric stability). Early work by Elliott and Cadogan suggested that power data for different turbulent conditions be segregated to distinguish the effects of turbulence on wind farm power production. This may be especially important for downwind turbines within wind farms, as chaotic and turbulent wake flows increase stress on downstream turbines. Impacts of stability on turbine wakes and power production have been examined for a flat terrain, moderate size (43 turbines) wind farm in Minnesota and for an offshore, 80 turbine wind farm off the coast of Denmark. Conzemius found it difficult to distinguish wakes (i.e., downwind velocity deficits) when the atmosphere was convective as large amounts of scatter were present in the turbine nacelle wind speed data. This suggested that high levels of turbulence broke-up the wake via large buoyancy effects, which are generally on the order of 1 km in size. On the other hand, they found pronounced wake effects when the atmosphere was very stable and turbulence was either suppressed or the length scale was reduced as turbulence in this case was mechanically produced (i.e., friction forces). This led to larger reductions at downwind turbines and maximum ve

  5. Gen. Tech. Rep. PSW-100. Berkeley, CA. Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; 1987.

    E-Print Network [OSTI]

    Gen. Tech. Rep. PSW-100. Berkeley, CA. Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; 1987. The University of California's Woody Biomass increasing energy costs, national interest in the development of alternative energy sources began to develop

  6. Computational Statistics Canonical Forest

    E-Print Network [OSTI]

    Ahn, Hongshik

    : First Author: Yu-Chuan Chen First Author Secondary Information: Order of Authors: Yu-Chuan Chen Hyejung;Computational Statistics manuscript No. (will be inserted by the editor) Canonical Forest Yu-Chuan Chen

  7. Selecting a Consulting Forester 

    E-Print Network [OSTI]

    Taylor, Eric; Foster, C. Darwin

    2005-10-19

    Landowners often need professional help after a weather-related disaster has damaged timber stands. A consulting forester can help a landowner develop management strategies that fit the landowner's objectives. This publication includes a checklist...

  8. Forest Fires: Answers to 12 Common Questions 1. Is wildfire bad for forests?

    E-Print Network [OSTI]

    North, Malcolm

    Forest Fires: Answers to 12 Common Questions 1. Is wildfire bad for forests? No. Some forests need burning on the forest floor 2. What are the types of forest fires? Broadly there are two types: low

  9. A Review of "Writing the Forest in Early Modern England: A Sylvan Pastoral Nation" by Jeffrey Theis 

    E-Print Network [OSTI]

    Sherman, Donovan

    2010-01-01

    -century news Jeffrey Theis. Writing the Forest in Early Modern England: A Sylvan Pastoral Nation. Pittsburgh: Duquesne University Press, 2009. xv + 368 pp. + 5 illus. $60.00. Review by donovan sherman, university of california, irvine. A passage midway... into Jeffrey Theis?s Writing the Forest in Early Modern England poetically exemplifies its broader contention that early modern literary and cultural studies elides the palpable presence of the forest. Traditional readings of Shakespeare, Theis begins...

  10. The Impact of a Forest Pathogen on the Endangered Golden-cheeked Warbler 

    E-Print Network [OSTI]

    Stewart, Laura Roe

    2012-07-16

    OF A FOREST PATHOGEN ON THE ENDANGERED GOLDEN-CHEEKED WARBLER A Thesis by LAURA ROE STEWART 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 May 2012 Major Subject: Wildlife and Fisheries Sciences The Impact of a Forest Pathogen on the Endangered Golden-cheeked Warbler Copyright 2012 Laura Roe Stewart THE IMPACT OF A FOREST...

  11. Wake angle for surface gravity waves on a finite depth fluid

    E-Print Network [OSTI]

    Pethiyagoda, Ravindra; Moroney, Timothy J

    2015-01-01

    Linear water wave theory suggests that wave patterns caused by a steadily moving disturbance are contained within a wedge whose half-angle depends on the depth-based Froude number $F_H$. For the problem of flow past an axisymmetric pressure distribution in a finite-depth channel, we report on the apparent angle of the wake, which is the angle of maximum peaks. For moderately deep channels, the dependence of the apparent wake angle on the Froude number is very different to the wedge angle, and varies smoothly as $F_H$ passes through the critical value $F_H=1$. For shallow water, the two angles tend to follow each other more closely, which leads to very large apparent wake angles for certain regimes.

  12. Non-linear Ion-wake Excitation by Ultra-relativistic Electron Wakefields

    E-Print Network [OSTI]

    Sahai, Aakash A

    2015-01-01

    The excitation of a non-linear ion-wake by a train of ultra-relativistic plasmons is modeled and its use for a novel regime of positron acceleration is explored. Its channel-like structure is independent of the energy-source driving the bubble-shaped slowly-propagating high phase-velocity electron density waves. The back of the bubble electron compression sucks-in the ions and the space-charge within the bubble expels them, forming a near-void channel with on-axis and bubble-edge density-spikes. The channel-edge density-spike is driven radially outwards as a non-linear ion acoustic-wave by the wake electron thermal pressure. OSIRIS PIC simulations are used to study the ion-wake structure, its evolution and its use for positron acceleration.

  13. Wake-up effects in Si-doped hafnium oxide ferroelectric thin films

    SciTech Connect (OSTI)

    Zhou, Dayu, E-mail: zhoudayu@dlut.edu.cn [School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China) [School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Key Laboratory for Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024 (China); State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China); Xu, Jin [Department of Electronic Engineering, Dalian Neusoft University of Information, Dalian 116023 (China)] [Department of Electronic Engineering, Dalian Neusoft University of Information, Dalian 116023 (China); Li, Qing; Guan, Yan [School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China)] [School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Cao, Fei; Dong, Xianlin [Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China)] [Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); Müller, Johannes [Fraunhofer IPMS-CNT, Koengisbruecker Strasse 180, 01109 Dresden (Germany)] [Fraunhofer IPMS-CNT, Koengisbruecker Strasse 180, 01109 Dresden (Germany); Schenk, Tony; Schröder, Uwe [Namlab gGmbH/TU Dresden, Noethnitzer Strasse 64, 01187 Dresden (Germany)] [Namlab gGmbH/TU Dresden, Noethnitzer Strasse 64, 01187 Dresden (Germany)

    2013-11-04

    Hafnium oxide based ferroelectric thin films have shown potential as a promising alternative material for non-volatile memory applications. This work reports the switching stability of a Si-doped HfO{sub 2} film under bipolar pulsed-field operation. High field cycling causes a “wake-up” in virgin “pinched” polarization hysteresis loops, demonstrated by an enhancement in remanent polarization and a shift of negative coercive voltage. The rate of wake-up is accelerated by either reducing the frequency or increasing the amplitude of the cycling field. We suggest de-pinning of domains due to reduction of the defect concentration at bottom electrode interface as origin of the wake-up.

  14. PIV velocity measurements in the wake of an obstruction simulating a Taylor bubble in a duct

    SciTech Connect (OSTI)

    Vassallo, P.; Kumar, R.

    1997-06-01

    Mean velocity measurements in the wake of an obstruction simulating a Taylor bubble (or slug) have been obtained using Particle Image Velocimetry (PIV) in a duct. Two flow rates were established: one represented the flow behind a large gas slug rising in quiescent fluid and the other represented an idealized slug rising with a higher relative velocity, as typically found in higher void fraction churn-turbulent flow. The results indicate that, in a reference frame fixed to the slug, the flow around the sides of the slug behaves like wall bounded jets which eventually merge downstream of the slug. The ratio of wake volume to slug volume is nearly the same for both Reynolds numbers tested (i.e., 3.0 at Re = 3,628 and 2.9 at Re = 7.257) although the measurements suggest that the wake size decreases somewhat as the Reynolds number is increased.

  15. COLLEGE OF FOREST RESOURCES UNIVERSITY OF WASHINGTON

    E-Print Network [OSTI]

    Brown, Sally

    to Elevated Carbon Dioxide and Nitrogen Fertilization Hong Lin Application of Ceramic Membranes to Recover Tree Crown Attributes from High Resolution Remotely Sensed Data Andrew J. Larson Rates, Causes

  16. Why Forest Health? University of Florida

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    Ventilation #12;"GROUND ZERO" #12;Similar Issues ­ · Brewery wastewater (PC ­ Jacksonville) · Industrial

  17. Montage Builders Northern Forest, Ryerson University Selected...

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

    high-performance builders, building science professionals and researchers. The main criteria for selection were designconstruction strategies, clear project plans, required...

  18. COLLEGE OF FOREST RESOURCES UNIVERSITY OF WASHINGTON

    E-Print Network [OSTI]

    Brown, Sally

    and Visualization of Product Adoption and Usage in the Residential Construction Industry Andrew D. Hill Improving Climate, Fire, and Vegetation Change in Yosemite National Park Elizabeth K. Scott-Kolarova Brand Portfolio Strategy in the Wood Products Industry: Consideration of Multidimensional Brand Association in a Co

  19. Wake deficit measurements on the Jess and Souza Ranches, Altamont Pass

    SciTech Connect (OSTI)

    Nierenburg, R. (Altamont Energy Corp., San Rafael, CA (USA))

    1990-04-01

    This report is ninth in a series of documents presenting the findings of field test under DOE's Cooperative Field Test Program (CFTP) with the wind industry. This report provides results of a project conducted by Altamont Energy Corp. (AEC) to measure wake deficits on the Jess and Sousa Ranches in Altamont Pass, CA. This research enhances and complements other DOE-funded projects to refine estimates of wind turbine array effects. This project will help explain turbine performance variability caused by wake effects. 4 refs., 28 figs., 106 tabs.

  20. Wake Flow Simulations for a Mid-Sized Rim Driven Wind Turbine

    SciTech Connect (OSTI)

    Rob O. Hovsapian; Various

    2014-06-01

    The onshore land where wind farms with conventional wind turbines can be places is limited by various factors including a requirement for relatively high wind speed for turbines' efficient operations. Where such a requirement cannot be met, mid-and small-sized turbines can be a solution. In the current paper simulations for near and for wakes behind a mid-sized Rim Driven Wind Turbine developed by Keuka Energy LLC is analyzed. The purposes of this study is to better understand the wake structure for more efficient wind farm planning. Simulations are conducted with the commercial CFD software STARCCM+

  1. Post-Soviet farmland abandonment, forest recovery, and carbon sequestration in western Ukraine

    E-Print Network [OSTI]

    Keeton, William S.

    Post-Soviet farmland abandonment, forest recovery, and carbon sequestration in western Ukraine T O of Forest Management, Ukrainian National Forestry University, vul. Gen. Chuprynky, 103, 79031 Lviv, Ukraine fluxes in western Ukraine (57 000 km2 ) and to assess the region's future carbon sequestration potential

  2. Does canopy wetness matter? Evapotranspiration from a subtropical montane cloud forest in Taiwan

    E-Print Network [OSTI]

    Chen, Jiquan

    Does canopy wetness matter? Evapotranspiration from a subtropical montane cloud forest in Taiwan Resources and Environmental Studies, National Dong-Hwa University, Hualien, Taiwan 2 Department intensive field campaign at the Chi-Lan Mountain cloud forest site in Taiwan. Eddy covariance and sap flow

  3. ASEM Conference on Forests, forest governance and timber products trade

    E-Print Network [OSTI]

    1 ASEM Conference on Forests, forest governance and timber products trade: Scenarios and challenges:00-10:30 Co-chairs of the Conference: H.E. Chheng Kim Sun, Cambodia Cambodia, H.E. Timo Makela, European Conference ­ 4 ­ 5 May 2010 ­Phnom Penh 2 Long Ratanakoma (Cambodia) - Climate change, forest conversion

  4. Natural Phenomena Exhibited by Forest Fires

    E-Print Network [OSTI]

    Natural Phenomena Exhibited by Forest Fires J. S. BARROWS U. S. Forest Service ABSTRACT Forest fire phenomena of forest fires is related to the International Symposium topic of Fire Models. Analysis of the behavior of large-scale forest fires and smaller scale experimental fires in forest fuels permits critical

  5. Forest Research Wildfires in Wales

    E-Print Network [OSTI]

    ,000 recorded grassfires and nearly 550 forest fires in South Wales; this equates to eight times more per unit

  6. Using MODIS FRP Values to Estimate Forest Fire PM 2.5 Emissions Riley Start, Brian Lamb, Brian Potter, Alistair Smith

    E-Print Network [OSTI]

    Collins, Gary S.

    Using MODIS FRP Values to Estimate Forest Fire PM 2.5 Emissions Riley Start, Brian Lamb, Brian Potter, Alistair Smith Forest and Rangeland Measurements Laboratory, College of Natural Resources, Washington State University USDA Forest Service 1. Introduction Accurate estimates of PM 2.5 (particulate

  7. OFFSHORE WAKE MEASUREMENTS USING A SODAR Luuk Folkerts, Jan Coelingh and Ernst van Zuylen, Ecofys bv, P.O. Box 8408, NL-3503 RK Utrecht,

    E-Print Network [OSTI]

    and evaluation of offshore wake models to improve the assessment of wind farm layout. 1 INTRODUCTION The wake in large offshore wind farms. The major objectives are to evaluate wake models in offshore environments to produce a design tool to assist planners and developers in optimising offshore wind farms. To provide

  8. Forest fires: from economic assessment

    E-Print Network [OSTI]

    Pettenella, Davide

    1 Forest fires: from economic assessment to governance Laura Secco, Davide Pettenella and Mauro context) Contribute of ongoing research (A model to quantify forest fires costs) Proposal for future research (An ACF approach to stakeholders analysis) Final remarks Background Background - 1 Forest fires

  9. Research Report Forests and carbon

    E-Print Network [OSTI]

    , baseline, carbon, climate change mitigation, forestry, quality assurance, sequestration. FCRP013/FCResearch Report Forests and carbon: a review of additionality #12;#12;Forests and carbon: a review. ISBN 978-0-85538-816-4 Valatin, G. (2011). Forests and carbon: a review of additionality. Forestry

  10. Waking OA's "Slumbering Giant": The University's Mandate To Mandate Open Access

    E-Print Network [OSTI]

    Harnad, Stevan

    it available online, free for all. This is called Open Access (OA), and it maximizes the uptake, impact for research usage, not for royalty income. Although some scholarly books too may be intended as author give articles. Again, first things first. Why OA? The purpose of providing OA is to maximize the uptake, usage

  11. RESEARCH ARTICLE Dynamic wind loads and wake characteristics of a wind turbine

    E-Print Network [OSTI]

    Hu, Hui

    installed in onshore or/and offshore wind farms in order to meet the 20% electricity generation goal. WindRESEARCH ARTICLE Dynamic wind loads and wake characteristics of a wind turbine model in an atmospheric boundary layer wind Hui Hu · Zifeng Yang · Partha Sarkar Received: 16 August 2011 / Revised: 1

  12. The role of vortex wake dynamics in the flow-induced vibration of tube arrays

    E-Print Network [OSTI]

    Kevlahan, Nicholas

    The role of vortex wake dynamics in the flow-induced vibration of tube arrays N.K.-R. Kevlahan Keywords: Fluid­structure interaction Vortex-induced vibration Tube arrays Potential flow a b s t r a c in the non-resonant flow-induced vibration of periodic tube arrays. This dual approach untangles the effects

  13. Wake measurements for flow around a sphere in a viscoelastic fluid Drazen Fabrisa)

    E-Print Network [OSTI]

    Liepmann, Dorian

    counterpart is made by a drag correction factor, K FD 6 0aUt , 3 where FD is the drag force on the sphere which balances the force due to gravity, ( s f)*( 4 3 ga3 ). The drag correc- tion factor is, in generalWake measurements for flow around a sphere in a viscoelastic fluid Drazen Fabrisa) Department

  14. "Development of a Free Vortex Wake Method Code for Offshore Floating Wind Turbines"

    E-Print Network [OSTI]

    Mountziaris, T. J.

    "Development of a Free Vortex Wake Method Code for Offshore Floating Wind Turbines" Andrew Sciotti Professor Matthew Lackner Shujian Liu Offshore floating wind turbines (OFWTs) require a unique aerodynamic in refining current mathematical models of offshore wind turbines while also allowing efficient simulations

  15. Optimal Wake-up Scheduling for PSM Delay Minimization in Mobile Wireless Networks

    E-Print Network [OSTI]

    Jagannatham, Aditya K.

    1 Optimal Wake-up Scheduling for PSM Delay Minimization in Mobile Wireless Networks AbhishekS) in wireless packet networks. In this context, the Power Saving Mode (PSM) adopted by the IEEE 802.11 and IEEE utilization. In PSM, an idle mobile station (MS) can enter the sleep mode by switching off the device modem

  16. Near-Inertial Wave Wake of Hurricanes Katrina and Rita over Mesoscale Oceanic Eddies

    E-Print Network [OSTI]

    Miami, University of

    Near-Inertial Wave Wake of Hurricanes Katrina and Rita over Mesoscale Oceanic Eddies BENJAMIN; Jaimes and Shay 2009, hereafter JS09). These robust mesoscale oceanic features are present at any time (Jaimes 2009). This mesoscale ocean variability imposed important dynamical constraints on the OML

  17. Wake fields and energy spread for the eRHIC ERL

    SciTech Connect (OSTI)

    Fedotov, A.; Kayran, D.

    2011-10-16

    Wake fields in high-current ERLs can cause significant beam quality degradations. Here we summarize effects of coherent synchrotron radiation, resistive wall, accelerating cavities and wall roughness for ERL parameters of the eRHIC project. A possibility of compensation of such correlated energy spread is also presented. An emphasis in the discussion is made on the suppression of coherent synchrotron radiation due to shielding and a possible reduction of wall roughness effects for realistic surfaces. In this report we discuss the wake fields with a focus on their effect on the energy spread of the beam. Other effects of wake fields are addressed elsewhere. An energy spread builds up during a pass though a very long beam transport in the eRHIC ERL under design. Such energy spread become important when beam is decelerated to low energy, and needs to be corrected. Several effects, such as Coherent Synchrotron Radiation (CSR), Resistive Wall (RW), accelerating RF cavities (RF) and Wall Roughness (WR) were considered. In this paper, we briefly summarize major contributions to energy spread from the wake fields for eRHIC parameters, and present possible energy spread compensation for decelerated beam. In the rest of the report we discuss effects which we believe are suppressed for the eRHIC parameters.

  18. Near wake properties of horizontal axis marine current L. Myers and A.S. Bahaj

    E-Print Network [OSTI]

    Quartly, Graham

    1 Near wake properties of horizontal axis marine current turbines L. Myers and A.S. Bahaj-scale horizontal axis turbine has been have been measured in a large water channel facility. A downstream map with different vertical shear and turbulence distributions. Offshore wind farms are perhaps the most closely

  19. LASER MEASUREMENTS OF WAKE DYNAMICS Ferhat Bingol, Jakob Mann and Gunner C. Larsen

    E-Print Network [OSTI]

    for a rotation of the laser beam around a vertical axis.horizontal rotation, thus resulting in a horizontal sweep Introduction The vast majority of today's wind turbines are erected in wind farms. As a consequence, wake from upstream turbines. The wind energy LiDAR, ZephIR (Figure 1a), was de- veloped primarily to obtain

  20. Assessing the frictional and baroclinic contributions to stratified wake formation: a parameter space study 

    E-Print Network [OSTI]

    Smith, Jamie Brooke

    2006-08-16

    The baroclinic and surface-frictional contributions to stratified wake formation are considered as a function of the non-dimensional height ( = Nho/U) and aspect-ratio ( = ho/L) of the barrier. Numerical simulations are computed for a wide range...

  1. An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex Terrains

    E-Print Network [OSTI]

    Hu, Hui

    1 An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex, 50011 An experimental study was conducted to investigate the interferences of wind turbines sited over conducted in a large wind tunnel with of wind turbine models sited over a flat terrain (baseline case

  2. Fluidic Control of a Turret Wake: Aerodynamic and Aero-Optical Effects

    E-Print Network [OSTI]

    Gordeyev, Stanislav

    Fluidic Control of a Turret Wake: Aerodynamic and Aero-Optical Effects Bojan Vukasinovic and Ari, Missouri 63166 DOI: 10.2514/1.J050085 Effects of direct small-scale actuation on aerodynamic and aero of separation. Effects of actuation on aero-optical distortions are assessed from the flow dynamics, using

  3. An Optimal Wake-Up Scheduling Algorithm for Minimizing Energy Consumption while Limiting

    E-Print Network [OSTI]

    Cohen, Reuven

    are not within each other's transmission range. However, in large mesh networks, global synchronization1 An Optimal Wake-Up Scheduling Algorithm for Minimizing Energy Consumption while Limiting Maximum Delay in a Mesh Sensor Network Reuven Cohen and Boris Kapchits Department of Computer Science Technion

  4. Vortices and Rossby waves in cylinder wakes on a parabolic -plane observed by altimetric imaging velocimetry

    E-Print Network [OSTI]

    , geostrophic and gradient wind velocity, and potential vorticity fields with very high spatial resolution, limited largely by the pixel resolution of the available imaging sensors. Cylinder wakes on the polar. INTRODUCTION The energy-containing eddies provide the strongest cur- rents in most areas of the world ocean

  5. Drag force in the open-loop control of the cylinder wake in the laminar regime

    E-Print Network [OSTI]

    Protas, Bartosz

    flow subject to rotary control. We consider simple control laws where the obstacle rotates harmonically Bluff body wakes play a very important role in various engineering applications. This is mainly due in fluid dynamics. From the implementation point of view, one of the simplest control methods is the rotary

  6. Reply to Brush et al.: Wake-up call for crop conservation science

    E-Print Network [OSTI]

    Ross-Ibarra, Jeffrey

    LETTER Reply to Brush et al.: Wake-up call for crop conservation science We strongly concur is increasing evidence that small-scale farmers throughout the world, and especially in areas of crop domestication and diversity, continue to maintain a diverse set of crop varieties" (3) and "after thirty years

  7. Bioenergy Demand in a Market Driven Forest Economy (U.S. South)

    Broader source: Energy.gov [DOE]

    Breakout Session 1A: Biomass Feedstocks for the Bioeconomy Bioenergy Demand in a Market Driven Forest Economy (U.S. South) Robert C. Abt, Professor of Natural Resource Economics and Management, North Carolina State University

  8. Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose

    E-Print Network [OSTI]

    Nair, Sankar

    Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose of sustainable products such as nanocellulose and biocomposites from forest biomass; biorefining to develop high

  9. developing and forests: finding

    E-Print Network [OSTI]

    ://www.ncreif.org/indices/timberland.phtml. T he chief attribute of the forestry asset class is its superior historical risk- return pro le producing growing sites and lower establishment and labour costs than the temperate forests of mature products make Africa an attractive forestry option. Typical emerging market risks as well as environmental

  10. FOREST CERTIFICATION January 2008

    E-Print Network [OSTI]

    , the unintended consequence of government regulation in the global marketplace has been to shift the supply agendas of industrial associations, environmental organizations, government agencies, and forest landowner, certification has become a focal point for the wide range of social, cultural, environmental and economic

  11. Forest Service Research Note

    E-Print Network [OSTI]

    management problems, such as Planning-Programing-Budgeting, will require automated procedures to col- lect in terms of products and services and alter- native methods of producing them . The out- puts from PPBS- semble forest data up to an economic limit of about 50,000 lines of map data at an average cost of 0

  12. Non-Timber Forest Products in Sri Lanka Rangika Perera

    E-Print Network [OSTI]

    Center Louisiana State University Agricultural Center Forest Products Society 61st International and beeswax Medicines Bushmeat Perfumes and cosmetics Other edible animal products Dyeing and tanning Hides, and Bushmeat #12;Rattan Chair Bamboo Handicrafts Rattan and Bamboo Garden House #12;Honey Collection- Modern

  13. Remote estimation of carbon dioxide uptake by a Mediterranean forest

    E-Print Network [OSTI]

    Garbulsky, Martín

    Remote estimation of carbon dioxide uptake by a Mediterranean forest M A R T I´ N F. G A R B U L Science and Environment, University of Tuscia, 01100 Viterbo, Italy Abstract The estimation of the carbon of the ecology of global change. Current remote sensing methodologies for estimating gross primary productivity

  14. Potential Internet Applications in Forest Products Exporting and

    E-Print Network [OSTI]

    Potential Internet Applications in Forest Products Exporting and International Trade Olivian T Laboratory Louisiana State University Agricultural Center #12;Research Objectives · Provide Internet usage with implementing the Internet as a business tool · Document the use of foreign languages on wood products exporter

  15. Internet Business Opportunities in the Forest Products Industry

    E-Print Network [OSTI]

    Internet Business Opportunities in the Forest Products Industry Richard Vlosky, Ph.D. Professor Resources Louisiana State University January 2003 #12;The Internet: Evolution? Revolution! #12;What am I% Movement toward a more global marketplace 22% Proliferation of the Internet 21% #12;Internet Growth

  16. Sustainable Forest Bioenergy Initiative

    SciTech Connect (OSTI)

    Breger, Dwayne; Rizzo, Rob

    2011-09-20

    In the state’s Electricity Restructuring Act of 1998, the Commonwealth of Massachusetts recognized the opportunity and strategic benefits to diversifying its electric generation capacity with renewable energy. Through this legislation, the Commonwealth established one of the nation’s first Renewable Energy Portfolio Standard (RPS) programs, mandating the increasing use of renewable resources in its energy mix. Bioenergy, meeting low emissions and advanced technology standards, was recognized as an eligible renewable energy technology. Stimulated by the state’s RPS program, several project development groups have been looking seriously at building large woody biomass generation units in western Massachusetts to utilize the woody biomass resource. As a direct result of this development, numerous stakeholders have raised concerns and have prompted the state to take a leadership position in pursuing a science based analysis of biomass impacts on forest and carbon emissions, and proceed through a rulemaking process to establish prudent policy to support biomass development which can contribute to the state’s carbon reduction commitments and maintain safeguards for forest sustainability. The Massachusetts Sustainable Forest Bioenergy Initiative (SFBI) was funded by the Department of Energy and started by the Department of Energy Resources before these contentious biomass issues were fully raised in the state, and continued throughout the substantive periods of this policy development. Thereby, while SFBI maintained its focus on the initially proposed Scope of Work, some aspects of this scope were expanded or realigned to meet the needs for groundbreaking research and policy development being advanced by DOER. SFBI provided DOER and the Commonwealth with a foundation of state specific information on biomass technology and the biomass industry and markets, the most comprehensive biomass fuel supply assessment for the region, the economic development impact associated with biomass usage, an understanding of forest management trends including harvesting and fuel processing methods, and the carbon profile of utilizing forest based woody biomass for the emerging biomass markets. Each of the tasks and subtasks have provided an increased level of understanding to support new directives, policies and adaptation of existing regulations within Massachusetts. The project has provided the essential information to allow state policymakers and regulators to address emerging markets, while ensuring forest sustainability and understanding the complex science on CO2 accounting and impacts as a result of biomass harvesting for power generation. The public at large and electricity ratepayers in Massachusetts will all benefit from the information garnered through this project. This is a result of the state’s interest to provide financial incentives to only biomass projects that demonstrate an acceptable carbon profile, an efficient use of the constrained supply of fuel, and the harvest of biomass to ensure forest sustainability. The goals of the Massachusetts Sustainable Forest Bioenergy Initiative as proposed in 2006 were identified as: increase the diversity of the Massachusetts energy mix through biomass; promote economic development in the rural economy through forest industry job creation; help fulfill the state’s energy and climate commitments under the Renewable Energy Portfolio Standard and Climate Protection Plan; assist the development of a biomass fuel supply infrastructure to support energy project demands; provide education and outreach to the public on the benefits and impacts of bioenergy; improve the theory and practice of sustainable forestry in the Commonwealth. Completed project activities summarized below will demonstrate the effectiveness of the project in meeting the above goals. In addition, as discussed above, Massachusetts DOER needed to make some modifications to its work plan and objectives during the term of this project due to changing public policy demands brought forth in the course of the public discours

  17. Continuing Education and Training Needs of the Southern Forest Industry. 

    E-Print Network [OSTI]

    Thomas, John K.; Albrecht, Don E.; Lee, J. Charles; Klinoff, Roger

    1985-01-01

    , decisionmak ing and communication skills, and an understanding of wood procurement and production for upper and middle management, and supervisors. Only a few of the topics included in the survey were perceived by executives as necessary information... Continuing Education and Training Needs ????,.ofthe '. ", , ; Southern Forest .?? Industry ft LIBRARY DEC 20 1985 . ~xas A&M UniversaL . 8-1508 The Texas Agricultural Experiment Station/Neville P. Clarke, Director/The Texas A&M University System...

  18. 25 November 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    the effects of climate change," Patrick O'Shea, chief research officer at the University of Maryland, said that will monitor changes in forests over time. Scientists hope the combined data will reveal more about land use, biodiversity and climate change effects. NASA officials estimate that engineers will complete GEDI by 2018

  19. Forests for People Access, recreation & tourism

    E-Print Network [OSTI]

    Strategy Forests for People Access, recreation & tourism on the national forest estate #12;#12;Access, recreation and tourism on the national forest estate | 3 Forests for People Access, recreation and tourism on the national forest estate Setting the scene Everyone has a right of responsible access

  20. By Sandy Benson Forest Fuels Management Specialist,

    E-Print Network [OSTI]

    Farritor, Shane

    -intensity lightning fires kept tree density down and the forests were very well adapted to fire because of the healthyBy Sandy Benson Forest Fuels Management Specialist, Nebraska Forest Service Thinning is an excellent management tool for forest landowners to use to improve forest health and productivity

  1. Forest Products (2010 MECS) | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journal Article) |FinalIndustrialFollowingFor yourMatteoForeignForest

  2. Are Forest Fires Predictable?

    E-Print Network [OSTI]

    K. Malarz; S. Kaczanowska; K. Kulakowski

    2002-04-23

    Dynamic mean field theory is applied to the problem of forest fires. The starting point is the Monte Carlo simulation in a lattice of million cells. The statistics of the clusters is obtained by means of the Hoshen--Kopelman algorithm. We get the map $p_n\\to p_{n+1}$, where $p_n$ is the probability of finding a tree in a cell, and $n$ is the discrete time. We demonstrate that the time evolution of $p$ is chaotic. The arguments are provided by the calculation of the bifurcation diagram and the Lyapunov exponent. The bifurcation diagram reveals several windows of stability, including periodic orbits of length three, five and seven. For smaller lattices, the results of the iteration are in qualitative agreement with the statistics of the forest fires in Canada in years 1970--2000.

  3. Method of determining forest production from remotely sensed forest parameters

    DOE Patents [OSTI]

    Corey, J.C.; Mackey, H.E. Jr.

    1987-08-31

    A method of determining forest production entirely from remotely sensed data in which remotely sensed multispectral scanner (MSS) data on forest 5 composition is combined with remotely sensed radar imaging data on forest stand biophysical parameters to provide a measure of forest production. A high correlation has been found to exist between the remotely sensed radar imaging data and on site measurements of biophysical 10 parameters such as stand height, diameter at breast height, total tree height, mean area per tree, and timber stand volume.

  4. Fire Effects on Forest Soil: Cave Gulch Fire, Helena National Forest TABLE OF CONTENTS

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    Fire Effects on Forest Soil: Cave Gulch Fire, Helena National Forest #12;ii TABLE OF CONTENTS ecosystems. Historically, ponderosa pine (Pinus contorta) forest systems have had low intensity fires every forests. Once forest managers began suppressing forest fires, vegetation and debris accumulated

  5. Wake of the flood: ascribing functions to the wave of type III effector proteins of phytopathogenic bacteria

    E-Print Network [OSTI]

    Dangl, Jeff

    Wake of the flood: ascribing functions to the wave of type III effector proteins of phytopathogenic cell for the pathogen's benefit. This is evidenced by the flood of effector genes that have recently

  6. The effect of periodic unsteady wakes on boundary layer transition and heat transfer on a curved plate 

    E-Print Network [OSTI]

    Wright, Lance Cole

    1996-01-01

    The effect of unsteady periodic wakes on heat transfer and boundary layer transition was investigated on a constant curvature heat transfer curved plate in a subsonic wind tunnel facility. The local heat transfer coefficient ...

  7. The wake structure behind a porous obstruction and its implications for deposition near a finite patch of emergent vegetation

    E-Print Network [OSTI]

    Chen, Zhengbing

    This experimental study describes the mean and turbulent flow structure in the wake of a circular array of cylinders, which is a model for a patch of emergent vegetation. The patch diameter, D, and patch density, a (frontal ...

  8. A New Green's Function for the Wake Potential Calculation of the SLAC S-band Constant Gradient Accelerating Section

    SciTech Connect (OSTI)

    Novokhatski, A,; /SLAC

    2012-02-17

    The behavior of the longitudinal wake fields excited by a very short bunch in the SLAC S-band constant gradient accelerating structures has been studied. Wake potential calculations were performed for a bunch length of 10 microns using the author's code to obtain a numerical solution of Maxwell's equations in the time domain. We have calculated six accelerating sections in the series (60-ft) to find the stationary solution. While analyzing the computational results we have found a new formula for the Green's function. Wake potentials, which are calculated using this Green's function are in amazingly good agreement with numerical results over a wide range of bunch lengths. The Green's function simplifies the wake potential calculations and can be easily incorporated into the tracking codes. This is very useful for beam dynamics studies of the linear accelerators of LCLS and FACET.

  9. Abstract--Policy surrounding the North American transmission grid, particularly in the wake of electric-industry

    E-Print Network [OSTI]

    Blumsack, Seth

    1 Abstract--Policy surrounding the North American transmission grid, particularly in the wake of electric-industry restructuring and following the blackout of August, 2003, has treated network congestion, Wheatstone network, merchant transmission, available transfer capability, reliability, congestion

  10. Atmospheric and Wake Turbulence Impacts on Wind Turbine Fatigue Loading: Preprint

    SciTech Connect (OSTI)

    Lee, S.; Churchfield, M.; Moriarty, P.; Jonkman, J.; Michalakes, J.

    2011-12-01

    Large-eddy simulations of atmospheric boundary layers under various stability and surface roughness conditions are performed to investigate the turbulence impact on wind turbines. In particular, the aeroelastic responses of the turbines are studied to characterize the fatigue loading of the turbulence present in the boundary layer and in the wake of the turbines. Two utility-scale 5 MW turbines that are separated by seven rotor diameters are placed in a 3 km by 3 km by 1 km domain. They are subjected to atmospheric turbulent boundary layer flow and data is collected on the structural response of the turbine components. The surface roughness was found to increase the fatigue loads while the atmospheric instability had a small influence. Furthermore, the downstream turbines yielded higher fatigue loads indicating that the turbulent wakes generated from the upstream turbines have significant impact.

  11. Centrifugal instability of Stokes layers in crossflow: the case of a forced cylinder wake

    E-Print Network [OSTI]

    D'Adamo, Juan; Wesfreid, José Eduardo

    2015-01-01

    The wake flow around a circular cylinder at $Re\\approx100$ performing rotatory oscillations has been thoroughly discussed in the literature, mostly focusing on the modifications to the natural B\\'enard-von K\\'arm\\'an vortex street that result from the forced shedding modes locked to the rotatory oscillation frequency. The usual experimental and theoretical frameworks at these Reynolds numbers are quasi-two-dimensional, since the secondary instabilities bringing a three-dimensional structure to the cylinder wake flow occur only at higher Reynolds numbers. In the present paper we show that a three-dimensional structure can appear below the usual three-dimensionalization threshold, when forcing with frequencies lower than the natural vortex shedding frequency, at high amplitudes, as a result of a previously unreported mechanism: a pulsed centrifugal instability of the oscillating Stokes layer at the wall of the cylinder. The present numerical investigation lets us in this way propose a physical explanation for t...

  12. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    P.O. BOX 245, BERKELEY, CALIFORNIA 94701 USDA FOREST SERVICE RESEARCH PAPER PSW- 76 /1971 #12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Vegetation Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2--Key to Vegetation Types

  13. Observations of the trade wind wakes of Kauai and Oahu Yang Yang,1,2

    E-Print Network [OSTI]

    Xie, Shang-Ping

    of the island of Hawaii with lee vortices and a westerly return flow. [3] Kauai and Oahu are much smaller of Hawaii, Fr is 0.6 and 0.8 for Kauai and Oahu (1.6 and 1.2 km in maximum elevation), respectivelyObservations of the trade wind wakes of Kauai and Oahu Yang Yang,1,2 Jian Ma,3 and Shang-Ping Xie1

  14. Radiative forcing of natural forest disturbances

    E-Print Network [OSTI]

    2012-01-01

    stand age on the boreal forest energy balance. Agriculturalcar- bon and energy cycling in the boreal forests, includingand Forest Meteorology, Liu HP, Randerson JT (2008) Interannual variability of surface energy

  15. Health Consequences of Forest Fires in Indonesia

    E-Print Network [OSTI]

    Frankenberg, Elizabeth; McKee, Douglas; Thomas, Duncan

    2004-01-01

    to Lung Health of Haze From Forest Fires: The SingaporeJim, C.Y. 1999. “The Forest Fires in Indonesia 1997-1998:A Study of the 1997 Forest Fires in South East Asia Using

  16. Using neutrons to fight forest fires

    E-Print Network [OSTI]

    Egbert, Hal; Walker, Ronald; Flocchini, R.

    2006-01-01

    USING NEUTRONS TO FIGHT FOREST FIRES Hal Egbert, Ronaldretardant to the scene of forest fires. One system that goesretardant to the scene of forest fires. MAFFS is the acronym

  17. Building wildfire resilience into forest management planning

    E-Print Network [OSTI]

    Building wildfire resilience into forest management planning Practice Guide #12;#12;Practice Guide Building wildfire resilience into forest management planning Forestry Commission: Edinburgh #12;© Crown resilience into forest management planning Forestry Commission Practice Guide Forestry Commission, Edinburgh

  18. Future Forests Program Plan 2013 2016

    E-Print Network [OSTI]

    1 Future Forests Program Plan 2013 ­ 2016 (November 2012) #12;2 Summary Mission and vision The mission of Future Forests is to provide management of forests in a future characterized by change. Our vision

  19. Tax Credit for Forest Derived Biomass

    Broader source: Energy.gov [DOE]

    Forest-derived biomass includes tree tops, limbs, needles, leaves, and other woody debris leftover from activities such as timber harvesting, forest thinning, fire suppression, or forest health m...

  20. A Current Overview of Forest Products Certification Shadia Duery

    E-Print Network [OSTI]

    of Forest Certification (PEFC), the Forest Stewardship Council (FSC), the Sustainable Forestry Initiative

  1. Formation mechanism of hairpin vortices in the wake of a truncated square cylinder in a duct

    E-Print Network [OSTI]

    Dousset, Vincent

    2010-01-01

    We investigate the laminar shedding of hairpin vortices in the wake of a truncated square cylinder placed in a duct, for Reynolds numbers around the critical threshold of the onset of vortex shedding. We single out the formation mechanism of the hairpin vortices by means of a detailed analysis of the flow patterns in the steady regime. We show that unlike in previous studies of similar structures, the dynamics of the hairpin vortices is entwined with that of the counter-rotating pair of streamwise vortices, which we found to be generated in the bottom part of the near wake (these are usually referred to as base vortices). In particular, once the hairpin structure is released, the base vortices attach to it, forming its legs, so these are streamwise, and not spanwise as previously observed in unconfined wakes or behind cylinders of lower aspect ratios. We also single out a trail of Omega-shaped vortices, generated between successive hairpin vortices through a mechanism that is analogous to that active in near-...

  2. Concentrations of inertial particles in the turbulent wake of an immobile sphere

    E-Print Network [OSTI]

    Homann, Holger

    2015-01-01

    Direct numerical simulations are used to study the interaction of a stream of small heavy inertial particles with the laminar and turbulent wakes of an immobile sphere facing an incompressible uniform inflow. Particles that do not collide with the obstacle but move past it, are found to form preferential concentrations both in the sphere boundary layer and in its wake. In the laminar case, the upstream diverging flow pattern is responsible for particle clustering on a cylinder that extends far downstream the sphere. The interior of this surface contains no particles and can be seen as a shadow of the large obstacle. Such concentration profiles are also present in the case of turbulent wakes but show a finite extension. The sphere shadow is followed by a region around the axis of symmetry where the concentration is higher than the average. It originates from a resonant centrifugal expulsion of particles from shed vortices. The consequence of this concentration mechanism on monodisperse inter-particle collision...

  3. Kinetic Electron and Ion Instability of the Lunar Wake Simulated at Physical Mass Ratio

    E-Print Network [OSTI]

    Haakonsen, Christian Bernt; Zhou, Chuteng

    2015-01-01

    The solar wind wake behind the moon is studied with 1D electrostatic particle-in-cell (PIC) simulations using a physical ion to electron mass ratio (unlike prior investigations); the simulations also apply more generally to supersonic flow of dense magnetized plasma past non-magnetic objects. A hybrid electrostatic Boltzmann electron treatment is first used to investigate the ion stability in the absence of kinetic electron effects, showing that the ions are two-stream unstable for downstream wake distances (in lunar radii) greater than about three times the solar wind Mach number. Simulations with PIC electrons are then used to show that kinetic electron effects can lead to disruption of the ion streams at least three times closer to the moon than in the hybrid simulations. This disruption occurs as the result of a novel wake phenomenon: the non-linear growth of electron holes spawned from a narrow dimple in the electron velocity distribution. Most of the holes arising from the dimple are small and quickly l...

  4. Exquisitely sensitive seal whisker-like sensors detect wakes at large distances

    E-Print Network [OSTI]

    Beem, Heather R

    2015-01-01

    Blindfolded harbor seals are able to use their uniquely shaped whiskers to track vortex wakes left by moving animals and objects that passed by up to 30 seconds earlier; this is an impressive feat as the flow features they detect may have velocity as low as 1 mm/s, and the seals have some capacity to identify the shape of the object as well. They do so while swimming forward at high speed, hence their whiskers are sensitive enough to detect small-scale changes in the external flow field, while rejecting self-generated flow noise. Here we identify and illustrate a novel flow mechanism that allows artificial whiskers with the identical unique geometry as those of the harbor seal to detect the features of minute flow fluctuations in wakes produced by objects far away. This is shown through the study of a model problem, consisting of a harbor seal whisker model interacting with the wake of an upstream circular cylinder. We show that whereas in open water the whisker geometry results in very low vibration, once it...

  5. November2013Forest Trends Report Series Forest Trade and Finance

    E-Print Network [OSTI]

    in Myanmar: The Political Economy of Myanmar's Timber Trade #12;#12;Timber Trade Flows and Actors in MyanmarNovember2013Forest Trends Report Series Forest Trade and Finance Timber Trade Flows and Actors The Political Economy of Myanmar's Timber Trade Kevin Woods November 2013 #12;Acknowledgments The author, Kevin

  6. Internet Usage Mining Using Random Forests

    E-Print Network [OSTI]

    Liu, Xuening

    2013-01-01

    Los Angeles Internet Usage Mining Using Random Forests Aof the Thesis Internet Usage Mining Using Random Forests bydata emerges, data mining is finally in the spotlight. This

  7. 1-NIE 3/8/2010 4:32:06 PM Managing the National Forests through Place-

    E-Print Network [OSTI]

    Nie, Martin

    1- NIE 3/8/2010 4:32:06 PM 1 Managing the National Forests through Place- Based Legislation Martin Nie and Michael Fiebig The resolution of multiple use conflicts through place-based (national forest, University of Montana. Missoula, MT. (406) 243.6795; martin.nie@umontana.edu. M.S. Environmental Studies

  8. Humboldt National Forest East Mormon

    E-Print Network [OSTI]

    Laughlin, Robert B.

    Humboldt National Forest Humboldt National Forest Millers Delamar Valley Dry Lake Dry Lake Valley Boundary Existing Designated Corridor (See Note 2) (As of 6/5/2009) Solar Energy Study Area (As of 6 14 16 Kilometers Carson City Ely Nevada Las Vegas Solar Energy Study Areas in Nevada Map Prepared

  9. Forest and Range Experiment Station

    E-Print Network [OSTI]

    Standiford, Richard B.

    . Phillips and Thomas J. Corcoran Optimal Control of Raw Timber Production Processes .................................................................................................. 60 Malcolm Kirby Forest Management Planning for Timber Production: A Sequential Approach.S.DEPARTMEN'I' OF AGRICULTURE GENERAL TECHNICAL REPORT PSW- 32 OPERATIONAL FOREST MANAGEMENT PLANNING METHODS: proceedings

  10. Forest and Range Experiment Station

    E-Print Network [OSTI]

    wider range of suppliers. As working circles beyond the size of a single National Forest have recently. Alternatives for expansion of working circles must be assessed in light of present Forest Service timber management policy and the impacts of timber supply. These alternates include (a) combination of National

  11. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    PACIFIC SOUTHWEST Forest and Range Experiment Station Ash Leachate Can Reduce Surface Erosion leachate can reduce surface erosion. Res. Note PSW-342, 4 p., illus. Pacific Southwest Forest and Range Exp from north- western California, ash leachate flocculated the clay frac- tions. As a result, the soil

  12. Global warming accelerates drought-induced forest death

    ScienceCinema (OSTI)

    McDowell, Nathan; Pockman, William

    2014-06-02

    Many southwestern forests in the United States will disappear or be heavily altered by 2050, according to a series of joint Los Alamos National Laboratory-University of New Mexico studies. Nathan McDowell, a Los Alamos plant physiologist, and William Pockman, a UNM biology professor, explain that their research, and more from scientists around the world, is forecasting that by 2100 most conifer forests should be heavily disturbed, if not gone, as air temperatures rise in combination with drought. "Everybody knows trees die when there's a drought, if there's bark beetles or fire, yet nobody in the world can predict it with much accuracy." McDowell said. "What's really changed is that the temperature is going up," thus the researchers are imposing artificial drought conditions on segments of wild forest in the Southwest and pushing forests to their limit to discover the exact processes of mortality and survival. The study is centered on drought experiments in woodlands at both Los Alamos and the Sevilleta National Wildlife Refuge in central New Mexico. Both sites are testing hypotheses about how forests die on mature, wild trees, rather than seedlings in a greenhouse, through the ecosystem-scale removal of 50 percent of yearly precipitation through large water-diversion trough systems.

  13. Global warming accelerates drought-induced forest death

    SciTech Connect (OSTI)

    McDowell, Nathan; Pockman, William

    2013-07-09

    Many southwestern forests in the United States will disappear or be heavily altered by 2050, according to a series of joint Los Alamos National Laboratory-University of New Mexico studies. Nathan McDowell, a Los Alamos plant physiologist, and William Pockman, a UNM biology professor, explain that their research, and more from scientists around the world, is forecasting that by 2100 most conifer forests should be heavily disturbed, if not gone, as air temperatures rise in combination with drought. "Everybody knows trees die when there's a drought, if there's bark beetles or fire, yet nobody in the world can predict it with much accuracy." McDowell said. "What's really changed is that the temperature is going up," thus the researchers are imposing artificial drought conditions on segments of wild forest in the Southwest and pushing forests to their limit to discover the exact processes of mortality and survival. The study is centered on drought experiments in woodlands at both Los Alamos and the Sevilleta National Wildlife Refuge in central New Mexico. Both sites are testing hypotheses about how forests die on mature, wild trees, rather than seedlings in a greenhouse, through the ecosystem-scale removal of 50 percent of yearly precipitation through large water-diversion trough systems.

  14. The response of understory herbaceous plants to nitrogen fertilization in forests of different land-use history

    E-Print Network [OSTI]

    Fraterrigo, Jennifer

    Sciences, Mars Hill College, Mars Hill, NC 28754, USA c Department of Zoology, University of Wisconsin colonization. We examined the response of six forest herb taxa (Arisaema triphyllum, Cimicifuga racemosa

  15. Comparison of the Dynamic Wake Meandering Model, Large-Eddy Simulation, and Field Data at the Egmond aan Zee Offshore Wind Plant: Preprint

    SciTech Connect (OSTI)

    Churchfield, M. J.; Moriarty, P. J.; Hao, Y.; Lackner, M. A.; Barthelmie, R.; Lundquist, J.; Oxley, G. S.

    2014-12-01

    The focus of this work is the comparison of the dynamic wake meandering model and large-eddy simulation with field data from the Egmond aan Zee offshore wind plant composed of 36 3-MW turbines. The field data includes meteorological mast measurements, SCADA information from all turbines, and strain-gauge data from two turbines. The dynamic wake meandering model and large-eddy simulation are means of computing unsteady wind plant aerodynamics, including the important unsteady meandering of wakes as they convect downstream and interact with other turbines and wakes. Both of these models are coupled to a turbine model such that power and mechanical loads of each turbine in the wind plant are computed. We are interested in how accurately different types of waking (e.g., direct versus partial waking), can be modeled, and how background turbulence level affects these loads. We show that both the dynamic wake meandering model and large-eddy simulation appear to underpredict power and overpredict fatigue loads because of wake effects, but it is unclear that they are really in error. This discrepancy may be caused by wind-direction uncertainty in the field data, which tends to make wake effects appear less pronounced.

  16. Forest Research Much more than trees

    E-Print Network [OSTI]

    justice to renewable energy and land use. We have teams of experts in the areas of forest sciencesForest Research Much more than trees #12;Welcome to Forest Research. We are the research agency and supplying scientific evidence on the human, ecological and economic aspects of sustainable forest management

  17. This Issue: Forest Carbon Stocks and Flows

    E-Print Network [OSTI]

    Policy Framework Managing Forests because Carbon Matters: Integrating Energy, Products, and Land's Note M.T. Goergen Jr. SAF TASK FORCE REPORT Managing Forests because Carbon Matters: Integrating EnergyThis Issue: Forest Carbon Stocks and Flows Climate­Forest Interactions Biomass Use and Feedstock

  18. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    A Yale Forest Forum Series Publication Volume 6 2003 Number 3 Issue Summary Rural Communities and Forests A summary of a forum and workshop exploring the rural community perspective of managing the forest Land, Chadwick D. Oliver Series Editor Mary L. Tyrrell Rural Communities and Forests A summary

  19. GREAT PLAINS INTERSTATE FOREST FIRE COOPERATIVE

    E-Print Network [OSTI]

    GREAT PLAINS INTERSTATE FOREST FIRE COMPACT COOPERATIVE ANNUAL OPERATING PLAN 2011 #12;Great Plains Interstate Forest Fire Compact Page 2 of 31 2011 Great Plains Forest Fire Compact AOP Table of Contents I. Intentionally Left Blank 28 K. Public Law 110-79 29 #12;Great Plains Interstate Forest Fire Compact Page 3 of 31

  20. Evaluating forest fire prevention programs: an analysis of three case studies 

    E-Print Network [OSTI]

    Rigsby, Shelley Renee

    1980-01-01

    EVALUATING FOREST FIRE PREVENTION PROGRAMS; AN ANALYSIS OF THREE CASE STUDIES A Thesi. s by Shelley Renee Rigsby Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1980 jor Subject: Sociology EVALUATING FOREST FIRE PREVENTION PROGRAMS: AN ANALYSIS OF THREE CASE STUDIES A Thesis by S. Ranee Rigsby Approved as to style and content by: (Chairman of Committee) p~ (Memb r) (Head f partment...

  1. UNIVERSITY AVE UNIVERSITY AVE

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    P UNIVERSITY AVE UNIVERSITY AVE UNIVERSITY AVE UNIVERSITY AVE PATTESON DR VANVOORHISRDVANVOORHISR STKREPPS AVE BROAD ST ELM ST DOGWOOD ST UNIVERSITY AVE MONONGAHELABLVD US HWY 19 41 48 Patient 48 53 78 58 Complex Pierpont Apartments UNIVERSITY PARK Erickson Alumni Center Fieldcrest Hall University Services

  2. Sandia Energy - Wake-Imaging System Progresses to Outdoor Scaled Test

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput AnalysisSinkholeCapabilities GeneralWake-Imaging System Progresses to

  3. Carbon calculator tracks the climate benefits of managed private forests

    E-Print Network [OSTI]

    Stewart, William C; Sharma, Benktesh D

    2015-01-01

    to fossil fuel Regenerated forest energy used in the LoggingManaging forests because carbon matters: Integrating energy,Energy from post-consumer residues relevant private forest

  4. A History of Forest Certification Priyan Perera1

    E-Print Network [OSTI]

    A History of Forest Certification Priyan Perera1 Richard P. Vlosky2 Louisiana Forest Products reviews the history of forest certification, development of different certification schemes

  5. How resilient are southwestern ponderosa pine forests after crown fires?

    E-Print Network [OSTI]

    Savage, M; Mast, J N

    2005-01-01

    of an intense prescribed forest fire: Is it ecologicalspecies to fires in Pinus ponderosa forests in northernIn Fire Effects in Southwestern Forests: Proceedings of the

  6. infrastructure Report by Forest Research

    E-Print Network [OSTI]

    ................................................................................................................................................ 10 Sustainable urban drainageBenefits of green infrastructure Report by Forest Research Promoting sustainable greenspace #12;Promoting sustainable greenspace #12;Defra research contract number WC0807 October2010 Promoting sustainable

  7. Pacific Southwest Forest and Range

    E-Print Network [OSTI]

    costs, economic costs, fire economics, suppression costs, Fire Economics Evaluation System (FEES costs, fire economics, suppression costs, Fire Economics Evaluation System (FEES) Current cost estimates planning and economics research unit, with headquarters at the Forest Fire Laboratory, Riverside, Calif. He

  8. Forest and Range Experiment Station

    E-Print Network [OSTI]

    . . . . . . . . . . . . . . . . . . . I Polar Till Define-i Our Seasons . . . . . . . . . . . . . . . 2 Sun-Eanh Energy Relations Earth-Sun Relations . . . . . . . . . . . . . . . . . . . . . I The Sun Affects Our Forests . . . . . . . . . . . . . . . . . . . . . .4 Energy Balance. . . . . . . . . . . . . . . . . . . 7 Local Energy Relations

  9. Forest Products Industry Technology Roadmap

    SciTech Connect (OSTI)

    none,

    2010-04-01

    This document describes the forest products industry's research and development priorities. The original technology roadmap published by the industry in 1999 and was most recently updated in April 2010.

  10. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Solar Radiation.211:614 Retrieval Terms: insolation; reproduction; snow management; environ mental planning. Solar radiation environmental factor. Incident solar radia tion creates a secondary form of radiation which af fects the forest

  11. Wake Up! 

    E-Print Network [OSTI]

    2012-03-05

    Throughout the ages, countless shipwrecks have left behind a rich historical and technological legacy. In this context, nautical archaeologists study the remains of these boats and ships and the cultures that created and used them. Ship...

  12. Centrifugal instability of Stokes layers in crossflow: the case of a forced cylinder wake

    E-Print Network [OSTI]

    Juan D'Adamo; Ramiro Godoy-Diana; José Eduardo Wesfreid

    2015-04-23

    The wake flow around a circular cylinder at $Re\\approx100$ performing rotatory oscillations has been thoroughly discussed in the literature, mostly focusing on the modifications to the natural B\\'enard-von K\\'arm\\'an vortex street that result from the forced shedding modes locked to the rotatory oscillation frequency. The usual experimental and theoretical frameworks at these Reynolds numbers are quasi-two-dimensional, since the secondary instabilities bringing a three-dimensional structure to the cylinder wake flow occur only at higher Reynolds numbers. In the present paper we show that a three-dimensional structure can appear below the usual three-dimensionalization threshold, when forcing with frequencies lower than the natural vortex shedding frequency, at high amplitudes, as a result of a previously unreported mechanism: a pulsed centrifugal instability of the oscillating Stokes layer at the wall of the cylinder. The present numerical investigation lets us in this way propose a physical explanation for the turbulence-like features reported in the recent experimental study of D'Adamo et al. (2011).

  13. The ATOMPAW generator Natalie Holzwarth (and many collaborators) a

    E-Print Network [OSTI]

    Holzwarth, Natalie

    The ATOMPAW generator Natalie Holzwarth (and many collaborators) a Wake Forest University, Winston;ATOMPAW is 10 years old! {i(r), i(r), pi(r)} and Vloc(r) Generate input to pwpaw, abinit, socorro

  14. 2009 Executive Summary COLORADO STATE UNIVERSITY

    E-Print Network [OSTI]

    Rangeland Ecosystem Science, MS Watershed Science, Ph.D. Forest Sciences, Ph.D. Rangeland Science Review University Committee Chair Vice Provost for Faculty Affairs A: General Review Information * (i) REVIEW and other University Data Resources. ---Part II: Continuous Improvement Information (Formative) developed

  15. UC leads effort to protect California forests from catastrophic fire

    E-Print Network [OSTI]

    Warnert, Jeannette E

    2012-01-01

    because of its Humans and forest fire credibility on allof the 20th century, natural forest fires out forest fuelsto make Sierra Nevada forests more fire resil- ient is an

  16. A Linear Collider Based on Nonlinear Plasma Wake-field Acceleration* J. Rosenzweig, N. Barov, E. Colby

    E-Print Network [OSTI]

    -field accelerator, all driven by a high average current, pulse compressed, rf photoinjector-fed linac. Issues this system is nonlinear from the point of view of the plasma response (all of the plasma electrons are driven394 A Linear Collider Based on Nonlinear Plasma Wake-field Acceleration* J. Rosenzweig, N. Barov, E

  17. Large-scale eddies and their role in entrainment in turbulent jets and wakes Jimmy Philip and Ivan Marusic

    E-Print Network [OSTI]

    Marusic, Ivan

    Large-scale eddies and their role in entrainment in turbulent jets and wakes Jimmy Philip and Ivan. Fluids 24, 086101 (2012) The influence of large-scale structures on entrainment in a decelerating://pof.aip.org/about/rights_and_permissions #12;PHYSICS OF FLUIDS 24, 055108 (2012) Large-scale eddies and their role in entrainment in turbulent

  18. Spring 2012 Denman Forestry Issues Series presents: Role of Forests and Forest Products in Carbon Mitigation

    E-Print Network [OSTI]

    Brown, Sally

    and Concerns "Pursuing Carbon and Forest Sustainability in Forest Biomass Energy Production" Craig PartridgeSpring 2012 Denman Forestry Issues Series presents: Role of Forests and Forest Products in Carbon Mitigation and Energy Independence May 15, 2012, 1-5:30 p.m., NHS Hall at CUH, UW Botanic Gardens School

  19. Economic Impact of the Texas Forest Sector, 2004 Forest Resource Development and Sustainable Forestry

    E-Print Network [OSTI]

    Economic Impact of the Texas Forest Sector, 2004 Forest Resource Development and Sustainable Forestry Texas Forest Service College Station, Texas November 2006 #12;Economic Impact of the Texas Forest Texas economy. METHODS This study uses the input-output method to estimate the direct and total economic

  20. Relighting Forest Ecosystems Jay E. Steele

    E-Print Network [OSTI]

    Geist, Robert

    -time cinematic relighting of large, forest ecosystems re- mains a challenging problem, in that important global-time cinematic relighting is achievable for forest scenes contain- ing hundreds of millions of polygons. 1

  1. Forest Landowners' Guide to the Federal

    E-Print Network [OSTI]

    Federal income tax consid- erations for Forest Land, including capital costs, reforestation tax incentives, timber income and capital gains, government program cost-share payments, tax treatment of other forest

  2. Forest Research Annual Report and Accounts 20012002

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2001­2002 An Agency of the Forestry Commission #12;#12;Forest Research Annual Report and Accounts 2001­2002 Together with the Comptroller and Auditor General

  3. Forest County Potawatomi Community- 2014 Project

    Office of Energy Efficiency and Renewable Energy (EERE)

    Forest County Potawatomi Community (FCPC), in collaboration with a selected contractor, will install and operate approximately 875 kilowatts (kW) of solar photovoltaic (PV) systems at a minimum of eight tribal facilities in Milwaukee and Forest Counties.

  4. FINLAND SOURCES 2007 -Forest industry production Authorities

    E-Print Network [OSTI]

    . The price development of the forest industry's end products, such as paper, has been negative for several

  5. Forests and The Texas Economy. 

    E-Print Network [OSTI]

    Laughlin, Jay O'; Williams, Richard A.

    1988-01-01

    , while maintain ing a healthy forest environment, requires the cooperation and understanding of many individuals, groups, and organizations. This document provides a unique statistical base for understanding the current status of forestry in Texas... or wood-based industry is a part of the manufactur ing industry that is a vital component of Texas' diverse econ omy (Figures 5-1 to 5-3). As indicated below, Texas is one of the top producers of forest products in the country: ? Texas is one...

  6. 4, 27472779, 2004 Boreal forest fires

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 4, 2747­2779, 2004 Boreal forest fires 1997/1998 N. Spichtinger et al. Title Page Abstract Discussions Boreal forest fires in 1997 and 1998: a seasonal comparison using transport model simulations, 2747­2779, 2004 Boreal forest fires 1997/1998 N. Spichtinger et al. Title Page Abstract Introduction

  7. Forest Research No. 37 May 2007

    E-Print Network [OSTI]

    Forest Research No. 37 May 2007 Contents m Editorial m Direct sowing ­ useful or useless details Forest Research - © Crown copyright 2007 Bluebells (Hyacinthoides non-scripta) are the epitome. ©AndreaKiewitt EcoThe Biodiversity and Conservation Newsletter of Ecology Division Forest Research type

  8. FINANCIAL TRENDS IN THE FOREST PRODUCTS INDUSTRY

    E-Print Network [OSTI]

    FINANCIAL TRENDS IN THE FOREST PRODUCTS INDUSTRY PRESENTATION TO INTERNATIONAL FOREST PRODUCTS 1999 2000 3/31/96=1 S&P 500 S&P Non-Technology S&P Paper & Forest Products #12;Source: National Assn; Pulp: MM tons) 0 20 40 60 80 1989 1999 1989 1999 1989 1999 Lumber-US Lumber-Canada Structural Panels

  9. FINANCIAL TRENDS IN THE FOREST PRODUCTS INDUSTRY

    E-Print Network [OSTI]

    that the economy ­ and demand for paper and wood -- is slowing. The recent softness in market pulp pricesFINANCIAL TRENDS IN THE FOREST PRODUCTS INDUSTRY PRESENTATION TO INTERNATIONAL FOREST PRODUCTS-Technology S&P Paper & Forest Products #12;Source: National Assn. of Home Builders U.S. HOUSING STARTS Million

  10. 8, 42214266, 2008 Tropical forest fire

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 8, 4221­4266, 2008 Tropical forest fire emissions R. J. Yokelson et al. Title Page Abstract Chemistry and Physics Discussions The tropical forest and fire emissions experiment: laboratory fire Publications on behalf of the European Geosciences Union. 4221 #12;ACPD 8, 4221­4266, 2008 Tropical forest fire

  11. 7, 49254979, 2007 Forest fire plumes in

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 7, 4925­4979, 2007 Forest fire plumes in the European free troposphere A. Petzold et al. Title forest fire plumes during the ICARTT-ITOP Experiment in summer 2004 A. Petzold1 , B. Weinzierl1 , H Correspondence to: A. Petzold (andreas.petzold@dlr.de) 4925 #12;ACPD 7, 4925­4979, 2007 Forest fire plumes

  12. 7, 69036958, 2007 Tropical Forest fire

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 7, 6903­6958, 2007 Tropical Forest fire emissions R. J. Yokelson et al. Title Page Abstract Discussions The Tropical Forest and fire emissions experiment: overview and airborne fire emission factor Forest Service, Fire Sciences Laboratory, Missoula, MT, USA Received: 4 May 2007 ­ Accepted: 10 May 2007

  13. 6, 32273264, 2006 Forest fire smoke

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 6, 3227­3264, 2006 Forest fire smoke plume V. R. Kotamarthi et al. Title Page Abstract Discussions Modeling of trace gases from the 1998 North Central Mexico forest fire smoke plume, as measured Forest fire smoke plume V. R. Kotamarthi et al. Title Page Abstract Introduction Conclusions References

  14. Wildland Fire Protection Program NEBRASKA FOREST SERVICE

    E-Print Network [OSTI]

    Farritor, Shane

    Wildland Fire Protection Program NEBRASKA FOREST SERVICE HOW NEBRASKANS BENEFIT: · improved districts · increased firefighter knowledge of wildland fire suppression and prevention · reduced forest.nfs.unl.edu Dr. Scott Josiah State Forester & Director (402) 472-1467 sjosiah2@unl.edu Don Westover Wildland Fire

  15. Sustainability the forest and paper industry

    E-Print Network [OSTI]

    Sustainability the forest and paper industry ­ on its way to sustainability http://www.icfpa.org/_documents/ICFPAStatement1.pdf #12;Contents Introduction The Forest and Paper Industry's Economic Profile A Key Social Actor Sustainable Forestry Practices In Tune with the Environment The Forest and Paper Industry's Energy Profile 2 3

  16. Sustainability the forest and paper industry

    E-Print Network [OSTI]

    Sustainability the forest and paper industry ­ on its way to sustainability #12;Contents Introduction The Forest and Paper Industry's Economic Profile A Key Social Actor Sustainable Forestry Practices In Tune with the Environment The Forest and Paper Industry's Energy Profile 2 3 5 7 9 12 #12

  17. Demo Abstract: A Sensornet-inspired Underwater Acoustic Modem for Wake-up and Data

    E-Print Network [OSTI]

    Heidemann, John

    Soft (the Center for Interactive Smart Oilfield Technologies), a joint venture be- tween the University

  18. Forest Roads June 3, 2008

    E-Print Network [OSTI]

    Bolding, M. Chad

    or encroach on streamside management zones (SMZs). Best Management Practices (BMP) compliance checks and streamside management zones will also be covered. This course is designed for foresters, timber buyers with numerous classroom and field exercises designed to improve the skills used in timber ac- cess road planning

  19. Climate Change and Forest Disturbances

    E-Print Network [OSTI]

    Dale, Virginia H.; Joyce, Linda A.; McNulty, Steve; Neilson, Ronald P.; Ayres, Matthew P.; Flannigan, Michael D.; Hanson, Paul J.; Irland, Lloyd C.; Lugo, Ariel E.; Peterson, Chris J.; Simberloff, Daniel; Swanson, Frederick J.; Stocks, Brian J.; Wotton, B. Michael; Peterson, A. Townsend

    2001-01-01

    , and recreation. Some disturbances can be functions of both nat- ural and human conditions (e.g., forest fire ignition and spread) (Figure 2). Virginia H. Dale (e-mail: vhd@ornl.gov) is a senior scientist and Paul J. Hanson is a research scientist...

  20. Mapping forests with Lidar provides flexible, accurate data with many uses

    E-Print Network [OSTI]

    Kelly, Maggi; Tommaso, Stefania Di

    2015-01-01

    to develop inputs for forest fire behavior modeling, and tovegetation inputs for forest fire behavior modeling canopy (across public forests. Forest fire behavior models need a

  1. The Influence of Fire and Other Disturbance on Ericaceous Shrubs in Xeric Pine-Oak Forests of the Appalachian Mountains 

    E-Print Network [OSTI]

    Pipkin, Ashley

    2012-07-16

    OF FIRE AND OTHER DISTURBANCE ON ERICACEOUS SHRUBS IN XERIC PINE-OAK FORESTS OF THE APPALACHIAN MOUNTAINS A Thesis by ASHLEY R. PIPKIN 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 May 2011 Major Subject: Geography The Influence of Fire and Other Disturbance on Ericaceous Shrubs in Xeric Pine-Oak Forests of the Appalachian Mountains...

  2. Effects of prescribed fire and varying stand basal area on nitrogen mineralization in a loblolly pine forest 

    E-Print Network [OSTI]

    Webb, Bobby Glen

    1991-01-01

    EFFECTS OF PRESCRIBED FIRE AND VARYING STAND BASAL AREA ON NITROGEN MINERALIZATION IN A LOBLOLLY PINE FOREST A Thesis by BOBBY GLEN WEBB Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 1991 Major Subject: Forestry EFFECTS OF PRESCRIBED FIRE AND VARYING STAND BASAL AREA ON NITROGEN MINERALIZATION IN A LOBLOLLY PINE FOREST A Thesis by BOBBY GLEN WEBB Approved as to style...

  3. Forest Renewal BC -Slocan Mixedwood Ecology and Management Chair Ecosystem Science and Management Program

    E-Print Network [OSTI]

    Hawkins, Christopher

    , and by incorporating a #12;FRBC-Slocan Mixedwood Ecology and Management Strategic Plan UNBC 2 mechanistic understandingForest Renewal BC - Slocan Mixedwood Ecology and Management Chair Ecosystem Science and Management Program University of Northern British Columbia Strategic Plan 2010-2015 Revised March 19, 2010 The role

  4. Distribution and dynamics of mangrove forests of South Asiaq Chandra Giri a,*, Jordan Long b

    E-Print Network [OSTI]

    Cortes, Corinna

    57198, USA c World Wide Fund for Nature (WWF), Pakistan d The Hong Kong Polytechnic University, Hong, Pakistan, and Sri Lanka. These forests provide important ecosystem goods and services to the region's dense three case studies in Indus Delta (Pakistan), Goa (India), and Sundarbans (Bangladesh and India

  5. Do Forests Have a Say in Global Carbon Markets for Climate Stabilization Policy ? Massimo Tavoni1

    E-Print Network [OSTI]

    ., and Dev. Economics, Ohio State University While carbon sequestration was included in the Kyoto Protocol. Notwithstanding the widespread research suggesting that biological sequestration of carbon can play an important reason for the setbacks to forest sequestration regarded whether carbon sequestration would reduce carbon

  6. Warming accelerates decomposition of decades-old carbon in forest soils

    E-Print Network [OSTI]

    (received for review January 10, 2012) Global climate carbon-cycle models predict acceleration of soilWarming accelerates decomposition of decades-old carbon in forest soils Francesca M. Hopkinsa,b,1, CA 94720; and d Energy and Resources Group, University of California, Berkeley, CA 94720 Edited

  7. Threshold effects of variable retention harvesting on understory plant communities in the boreal mixedwood forest

    E-Print Network [OSTI]

    Macdonald, Ellen

    Threshold effects of variable retention harvesting on understory plant communities in the boreal mixedwood forest Ashley Craig, S. Ellen Macdonald * Department of Renewable Resources, University of Alberta are characterized by an on-going cycle of natural disturbances and successional development at varying scales

  8. Soil and sedimentary charcoal evidence for Holocene forest fires in an inland

    E-Print Network [OSTI]

    Coxson, Darwyn

    University Way, Prince George BC V2N 4Z9, Canada; 2 Ministry of Forests and Range, 1011 Á/ 4th Avenue, Prince,3 (2006) pp. 415Á/427 # 2006 Edward Arnold (Publishers) Ltd 10.1191/0959683606hl937rp #12;combination

  9. Data Archive of the Harvard Forest, a Long Term Ecological Research (LTER) Site

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Since 1907 research and education have been the mission of the Harvard Forest is one of the oldest and most intensively studied forests in North America. Located in Petersham, Massachusetts, its 3000 acres of land have been a center of research and education since 1907. The Long Term Ecological Research (LTER) program, established in 1988 and funded by the National Science Foundation, provides a framework for much of this activity. An understanding of forest responses to natural and human disturbance and environmental change over broad spatial and temporal scales pulls together research topics including biodiversity studies, the effects of invasive organisms, large experiments and permanent plot studies, historical and retrospective studies, soil nutrient dynamics, and plant population and community ecological interactions. Major research in forest-atmosphere exchange, hydrology, and regional studies places the work in regional and global context, aided by modeling tools. Conservation and management research and linkages to policy have been part of the Forest since its beginning, and the approaches used in New England can often apply to international studies. [Copied from http://harvardforest.fas.harvard.edu/research.html] In addition to more than 150 datasets, the Visual Information Access system at Harvard University Library makes nearly 900 images pertaining to Harvard Forest research available online to the public.

  10. Louisiana Forest Products Lab 1 Accidents in the Primary &

    E-Print Network [OSTI]

    Louisiana Forest Products Lab 1 Accidents in the Primary & Secondary Forest Products Industry Center #12;Louisiana Forest Products Lab 2 Abitibi Paper Co. Camp 40 Thunder Bay, Ontario #12;Louisiana Forest Products Lab 3 Accidents in Forest Products Industry Accident Statistics Primary industry

  11. Large-Eddy Simulation Study of Wake Propagation and Power Production in an Array of Tidal-Current Turbines: Preprint

    SciTech Connect (OSTI)

    Churchfield, M. J.; Li, Y.; Moriarty, P. J.

    2012-07-01

    This paper presents our initial work in performing large-eddy simulations of tidal turbine array flows. First, a horizontally-periodic precursor simulation is performed to create turbulent flow data. Then that data is used as inflow into a tidal turbine array two rows deep and infinitely wide. The turbines are modeled using rotating actuator lines, and the finite-volume method is used to solve the governing equations. In studying the wakes created by the turbines, we observed that the vertical shear of the inflow combined with wake rotation causes lateral wake asymmetry. Also, various turbine configurations are simulated, and the total power production relative to isolated turbines is examined. Staggering consecutive rows of turbines in the simulated configurations allows the greatest efficiency using the least downstream row spacing. Counter-rotating consecutive downstream turbines in a non-staggered array shows a small benefit. This work has identified areas for improvement, such as the use of a larger precursor domain to better capture elongated turbulent structures, the inclusion of salinity and temperature equations to account for density stratification and its effect on turbulence, improved wall shear stress modelling, and the examination of more array configurations.

  12. Large-Eddy Simulation Study of Wake Propagation and Power Production in an Array of Tidal-Current Turbines: Preprint

    SciTech Connect (OSTI)

    Churchfield, M. J.; Li, Y.; Moriarty, P. J.

    2011-07-01

    This paper presents our initial work in performing large-eddy simulations of tidal turbine array flows. First, a horizontally-periodic precursor simulation is performed to create turbulent flow data. Then that data is used to determine the inflow into a tidal turbine array two rows deep and infinitely wide. The turbines are modeled using rotating actuator lines, and the finite-volume method is used to solve the governing equations. In studying the wakes created by the turbines, we observed that the vertical shear of the inflow combined with wake rotation causes lateral wake asymmetry. Also, various turbine configurations are simulated, and the total power production relative to isolated turbines is examined. Staggering consecutive rows of turbines in the simulated configurations allows the greatest efficiency using the least downstream row spacing. Counter-rotating consecutive downstream turbines in a non-staggered array shows a small benefit. This work has identified areas for improvement, such as the use of a larger precursor domain to better capture elongated turbulent structures, the inclusion of salinity and temperature equations to account for density stratification and its effect on turbulence, improved wall shear stress modeling, and the examination of more array configurations.

  13. Chaotic Dynamics of Forest Fires

    E-Print Network [OSTI]

    K. Malarz; S. Kaczanowska; K. Kulakowski

    2002-04-25

    In the thermodynamic limit, a probabilistic cellular automaton can be approximated by a deterministic nonlinear map. Here we construct such a map for the forest fire problem. The construction is based on the results of the Monte Carlo simulation, performed on a square lattice of million cells. The results of the calculation are analyzed by means of the Hoshen--Kopelman algorithm (HKA). The only parameter of the map describes the probability that a tree appears at an empty cell during one time step. The obtained map seems to be non-differentiable at the percolation threshold. The Lyapunov exponent for the map is positive. Also, we found the cycle of length three by means of the method of symbolic dynamics. The results are illustrated by the experimental data on the forest fires in Canada in years 1970--2000. Although these data are fortunately far from thermodynamic limit, their qualitative character is reproduced for smaller lattices.

  14. X-ray Burst Oscillations: From Flame Spreading to the Cooling Wake

    E-Print Network [OSTI]

    Simin Mahmoodifar; Tod Strohmayer

    2015-10-16

    Type I X-ray bursts are thermonuclear flashes observed from the surface of accreting neutron stars in Low Mass X-ray Binaries. Oscillations have been observed during the rise and/or decay of some of these X-ray bursts. Those seen during the rise can be well explained by a spreading hot spot model, but to date there haven't been any quantitative studies that consistently track the oscillation amplitude both during the rise and decay (tail) of bursts. Here we compute the light curves and amplitudes of oscillations in X-ray burst models that realistically account for both flame spreading and subsequent cooling. We present results for two such "cooling wake" models, a "canonical" cooling model where each patch on the neutron star surface heats and cools identically, and an "asymmetric" model where parts of the star cool at different rates. We show that while canonical cooling models can generate oscillations in the tails of bursts, they cannot easily produce the highest observed modulation amplitudes. Alternatively, a simple model with asymmetric cooling can achieve higher amplitudes consistent with the observations.

  15. Windthrow Hazard Mapping using GIS, Canadian Forest Products TFL 30, McGregor Model Forest.

    E-Print Network [OSTI]

    Mitchell, Stephen

    Windthrow Hazard Mapping using GIS, Canadian Forest Products TFL 30, McGregor Model Forest. Final in north central BC. Using ArcView Geographic Information System (GIS), buffers 25m deep were created

  16. PHILADELPHIA UNIVERSITY PHILADELPHIA UNIVERSITY

    E-Print Network [OSTI]

    PHILADELPHIA UNIVERSITY : 626 25/9/1991 137 28/10/2007 195164 626 25/9/1991 10/1/2010 --- 1062 : : #12;PHILADELPHIA UNIVERSITY : 2009/2010 11221245 16171952 1211730 2002 2003 2004 2005 2006 2007 2008 2009 2010 #12;PHILADELPHIA UNIVERSITY : : : #12

  17. J. Fluid Mech. (2012), vol. 710, pp. 659669. c Cambridge University Press 2012 659 doi:10.1017/jfm.2012.390

    E-Print Network [OSTI]

    Wesfreid, José Eduardo

    2012-01-01

    & Godoy-Diana 2010), and a few fluid physics mechanisms behind the beneficial effects of passiveJ. Fluid Mech. (2012), vol. 710, pp. 659­669. c Cambridge University Press 2012 659 doi:10.1017/jfm-based propulsion. We compare the regime transitions in the wake with respect to the case of a rigid foil and show

  18. Fire disturbance and forest structure in an old-growth Pinus ponderosa forest, southern Cascades, USA

    E-Print Network [OSTI]

    Taylor, Alan

    Fire disturbance and forest structure in an old-growth Pinus ponderosa forest, southern Cascades, USA Alan H. Taylor Abstract Questions: Did fire regimes in old-growth Pinus ponderosa forest change a pattern of continuous regeneration or is regeneration episodic and related to fire disturbance or fire

  19. The Economic Importance of New Hampshire's Forest-Based Economy FOREST-BASED

    E-Print Network [OSTI]

    New Hampshire, University of

    recreational opportunities and store carbon, all while providing us a valuable renewable resource and important forest products, it also provides an economic motivation for forest landowners to keep their land products manufacturing, pulp and paper manufacturing, wood energy, and the forest-based recreational

  20. Increasing carbon dioxideIncreasing carbon dioxide & its effect on forest& its effect on forest

    E-Print Network [OSTI]

    Gray, Matthew

    ecosystem's natural capacity toA forest ecosystem's natural capacity to capture energy, capture energy's natural capacity toA forest ecosystem's natural capacity to capture energy, capture energy, sustain life10/13/2010 1 Increasing carbon dioxideIncreasing carbon dioxide & its effect on forest& its effect

  1. Terms of Reference AFF Forest certification experts

    E-Print Network [OSTI]

    on the review develop training modules on forest certification (One expert, for all regions and also, identify opportunities and challenges, analyse institutional and technical training needs and based

  2. Forest County Potawatomi Community- 2011 Project

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Forest County Potawatomi Community (FCPC) will conduct an energy efficiency feasibility study at Potawatomi Carter Casino Hotel (PCCH) in Northern Wisconsin.

  3. Recreation and Tourism and the Future in Lodgepole Pine Forests

    E-Print Network [OSTI]

    trees Local economy Less people visiting = less spending Forest Fires Ski Resort Concerns Forest Fires of a forest fire. Vail Eagle County Vail $500,000 for thinning -2008 Helicopter to remove beetle infected

  4. Physiological responses of a black spruce forest to weather

    E-Print Network [OSTI]

    1997-01-01

    a black spruce forest to weather Michael L. Goulden, • Bruceresponses of the forest to weather. The annual rates ofgross forest CO 2 exchange to weather is required before the

  5. Forest thinning may increase water yield from the Sierra Nevada

    E-Print Network [OSTI]

    Downing, Jim

    2015-01-01

    forests tend to yield more water. Further reading: Bales RC,et al. 2011. Forests and Water in the Sierra Nevada: SierraForest thinning may increase water yield from the Sierra

  6. The Impact of Boreal Forest Fire on Climate Warming

    E-Print Network [OSTI]

    2006-01-01

    The Impact of Boreal Forest Fire on Climate Warming J. T.analysis of a boreal forest fire, integrating the effects ofnet effect of a boreal forest fire on climate, on the basis

  7. University Library University of Saskatchewan

    E-Print Network [OSTI]

    Saskatchewan, University of

    University Library University of Saskatchewan Core Competencies for University of Saskatchewan Librarians This document defines the basic knowledge and skills librarians at the University of Saskatchewan in the Canadian academic research environment. The University Library Competencies Framework (Figure 1) maps

  8. Soil moisture dynamics in an eastern Amazonian tropical forest

    E-Print Network [OSTI]

    Bruno, RD; Bruno, RD; da Rocha, HR; de Freitas, HC; Goulden, ML; Miller, SD

    2006-01-01

    variations in energy and carbon exchange over forest andsurface energy exchange in the Amazonian terra firme forestvapour, energy, and CO 2 exchange. The rates of whole-forest

  9. Simulating the Impacts of Disturbances on Forest Carbon Cycling...

    Office of Scientific and Technical Information (OSTI)

    America: Processes, Data, Models, and Challenges Disturbances disrupt the forest structures and alter forest resources, substrate availability, or the physical environment....

  10. DOE Supports Renewable Energy Deployment Projects for Forest...

    Energy Savers [EERE]

    DOE Supports Renewable Energy Deployment Projects for Forest County Potawatomi Community DOE Supports Renewable Energy Deployment Projects for Forest County Potawatomi Community...

  11. Forest County Potawatomi Recognized for Renewable Energy Achievements...

    Energy Savers [EERE]

    Forest County Potawatomi Recognized for Renewable Energy Achievements Forest County Potawatomi Recognized for Renewable Energy Achievements May 28, 2014 - 5:53pm Addthis A...

  12. Evaluating the Contribution of Climate Forcing and Forest Dynamics...

    Office of Scientific and Technical Information (OSTI)

    and PAR) records from Harvard Forest (Massachusetts) and Tapajos National Forest (Brazil) to establish empirical relationships among directly measured cloud type and cover...

  13. Forest County Potawatomi Tribe Cuts Emissions, Promotes Green...

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

    Emissions, Promotes Green Growth Forest County Potawatomi Tribe Cuts Emissions, Promotes Green Growth February 23, 2012 - 6:29pm Addthis The Forest County Potawatomi Tribe's solar...

  14. Nature Climate Change features Los Alamos forest research

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

    Nature Climate Change Features Forest Research Nature Climate Change features Los Alamos forest research The print issue features as its cover story the tree-stress research of...

  15. Community-Based Forest (Natural) Resource Management: A Path...

    Open Energy Info (EERE)

    Community-Based Forest (Natural) Resource Management: A Path to Sustainable Environment and Development Jump to: navigation, search Name Community-Based Forest (Natural) Resource...

  16. Benefits of Tropical Forest Management Under the New Climate...

    Open Energy Info (EERE)

    Benefits of Tropical Forest Management Under the New Climate Change Agreement-A Case Study in Cambodia Jump to: navigation, search Name Benefits of Tropical Forest Management Under...

  17. A Design-Builder's Perspective: Anaerobic Digestion, Forest County...

    Energy Savers [EERE]

    A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi Community - A Case Study A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi...

  18. Regulation and Moral Hazard in Forest Concessions in Brazil

    E-Print Network [OSTI]

    Balbinotto Neto, Giácomo; Tillmann, Eduardo A; Ratnieks, Ianes

    2012-01-01

    and Forest Concessions in Brazil. Planejamento e Políticaswelfare maximization in Brazil. Rio de Janeiro: IPEA, 1998.in Forest Concessions in Brazil Eduardo A. Tillmann MS.

  19. Department of Civil Engineering University of Washington

    E-Print Network [OSTI]

    Eberhard, Marc O.

    #12;Department of Civil Engineering University of Washington Box 352700 Seattle, Washington 98195-2700 EVALUATION OF THE EFFECTS OF FOREST ROADS ON STREAMFLOW IN HARD AND WARE CREEKS, WASHINGTON by LAURA C Washington catchments, Hard and Ware Creeks (drainage areas 2.3 and 2.8 square km, respectively). Road

  20. Grazing Management in Broadleaf Forests

    E-Print Network [OSTI]

    Norbu, Lungten

    2002-01-01

    in 1953 sums up in support of forest grazing by stating that "grazing on the commercial timberland offers few complications as long as grazing is managed so that forage is not damaged. If forage is not damaged, there will be no damage to timber... and Development in the Philippines”, Proceedings of a workshop "on Integration of Ruminants into Plantation Systems in Southeast Asia " at Lake Toba, North Sumatra, Indonesia ACIAR proceedings No 64, Editors-B.F. Mullen and H.M. Shelton 5. Chamling, K...

  1. Control of Dry Season Evapotranspiration over the Amazonian Forest as Inferred from Observations at a Southern Amazon Forest Site

    E-Print Network [OSTI]

    Juárez, RIN; Hodnett, MG; Fu, R; Goulden, ML; von Randow, C

    2007-01-01

    variations in energy and carbon exchange over forest andEnergy and water dynam- ics of a central Amazonian rain forest.

  2. Montage Builders Northern Forest, Ryerson University Selected as Grand

    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 DeliciousMathematicsEnergyInterested Parties - WAPAEnergy6-09.docAERMOD-PRIME, UnitsMonishaDepartment ofWinners

  3. The North American Forest Sector Outlook Study

    E-Print Network [OSTI]

    to consumption patterns for wood products and bioenergy. Markets for wood products, which mainly are destined in the forest sector of North America 21 3.1 Forest inventory 21 3.2 Aggregate production, consumption, Canada, carbon sequestration, climate change, consumption, demand, econometric, EFSOS, export, fellings

  4. Classifying forest productivity at different scales

    SciTech Connect (OSTI)

    Graham, R.L.

    1991-01-01

    Spatial scale is an important consideration when evaluating, using, or constructing forest productivity classifications. First, the factors which dominate spatial variability in forest productivity are scale dependent. For example, within a stand, spatial variability in productivity is dominated by microsite differences; within a national forest such as the Cherokee National Forest, spatial variability is dominated by topography and land-use history (e.g., years since harvest); within a large region such as the southeast, spatial variability is dominated by climatic patterns. Second, classifications developed at different spatial scales are often used for different purposes. For example, stand-level classifications are often keys or rules used in the field to judge the quality or potential of a site. National-forest classifications are often presented as maps or tables and may be used in forest land planning. Regional classifications may be maps or tables and may be used to quantify or predict resource availability. These scale-related differences in controlling factors and purposes will affect both the methods and the data used to develop classifications. In this paper, I will illustrate these points by describing and comparing three forest productivity classifications, each developed for a specific purpose at a specific scale. My objective is not to argue for or against any of these particular classifications but rather to heighten awareness of the critical role that spatial scale plays in the use and development of forest productivity classifications. 8 refs., 2 figs., 1 tab.

  5. Agriculture, Forest Products and Commercial Fishing ECONOMICENGINE

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Agriculture, Forest Products and Commercial Fishing ECONOMICENGINE NORTHEAST #12;Dear Reader, We and Commercial Fishing. This report confirms what we all know, but sometimes take for granted. Agriculture, commercial fishing and the forest products industries are all important contributors to the Northeast economy

  6. Design techniques for forest management planning

    E-Print Network [OSTI]

    Design techniques for forest management planning Practice Guide #12;#12;Practice Guide Design by the Forestry Commission in 1998 as `Forest design planning: a guide to good practice'. This revised second edition published in 2014. ISBN: 978-0-85538-894-2 Forestry Commission (2014). Design techniques

  7. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    Communities and Forests A summary of a forum and workshop exploring the links between rural community Tyrrell Sustaining Rural Communities and Forests A summary of a forum and workshop exploring the links between rural community viability and sustainable forestry #12;Issue SummaryPage 3 | Contents Contents

  8. New England Forests: The Path to Sustainability

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    on forests for the quality and abundance of our region's outstanding drinking water. Forests cool and clean could be more certain that our wood is harvested sustainably and is not contributing to environmental fossil fuels extracted from deep within the earth at great cost to our environment and the climate

  9. Economic Impact of the Texas Forest Sector

    E-Print Network [OSTI]

    and paper products. The Texas forest sector also produces many value-added forest products such as millwork, wood kitchen cabinets, prefabricated wood buildings, wood furniture, and various paper products in terms of total industry output, value-added, employment, and labor income. Total industry output

  10. Riparian Forest Grows Trees fall in

    E-Print Network [OSTI]

    Riparian Forest Grows Trees Die Trees fall in the lake Trees leave the littoral zone "Life" Cycle of Coarse Woody Habitat #12;Riparian Forest Grows What factors drive the species composition and stand factors drive the species composition and stand structure? Trees Die Trees fall in the lake Trees leave

  11. PHILADELPHIA UNIVERSITY -1 1191

    E-Print Network [OSTI]

    PHILADELPHIA UNIVERSITY :: -1 1191) . : : : . #12;PHILADELPHIA UNIVERSITY . . : . . . . #12;PHILADELPHIA UNIVERSITY

  12. Implementation and assessment of turbine wake models in the Weather Research and Forecasting model for both mesoscale and large-eddy simulation

    SciTech Connect (OSTI)

    Singer, M; Mirocha, J; Lundquist, J; Cleve, J

    2010-03-03

    Flow dynamics in large wind projects are influenced by the turbines located within. The turbine wakes, regions characterized by lower wind speeds and higher levels of turbulence than the surrounding free stream flow, can extend several rotor diameters downstream, and may meander and widen with increasing distance from the turbine. Turbine wakes can also reduce the power generated by downstream turbines and accelerate fatigue and damage to turbine components. An improved understanding of wake formation and transport within wind parks is essential for maximizing power output and increasing turbine lifespan. Moreover, the influence of wakes from large wind projects on neighboring wind farms, agricultural activities, and local climate are all areas of concern that can likewise be addressed by wake modeling. This work describes the formulation and application of an actuator disk model for studying flow dynamics of both individual turbines and arrays of turbines within wind projects. The actuator disk model is implemented in the Weather Research and Forecasting (WRF) model, which is an open-source atmospheric simulation code applicable to a wide range of scales, from mesoscale to large-eddy simulation. Preliminary results demonstrate the applicability of the actuator disk model within WRF to a moderately high-resolution large-eddy simulation study of a small array of turbines.

  13. Boston University Columbia University

    E-Print Network [OSTI]

    Bucci, David J.

    University CUNY Hunter College University of Massachusetts Amherst & Yestermorrow Design/Build School to consider the safety and security of the programs you are considering attending. Also Dartmouth's Dickey searching for program options by criteria: http://www.iiepassport.org/ http

  14. MEGAN E. CATTAU Columbia University, Department of Ecology, Evolution, and Environmental Biology

    E-Print Network [OSTI]

    DeFries, Ruth S.

    , and landscape configuration: Changing disturbance dynamics in the peat swamp forest Duke University, Nicholas in the context of sustainable development, including the climate system, water #12;2 resources, food production

  15. MEGAN E. CATTAU Columbia University, Department of Ecology, Evolution, and Environmental Biology

    E-Print Network [OSTI]

    DeFries, Ruth S.

    , and landscape configuration: Changing disturbance dynamics in the peat swamp forest Duke University, Nicholas the climate system, water resources, food production and nutrient cycling, and the role of biodiversity

  16. Global Forest Products Trade by Ed Pepke, EFI

    E-Print Network [OSTI]

    change policies: escalation of wood energy production, consumption and trade 3. Globalization of forest Lacey Act Amendment f. EU renewable (wood) energy policies Forests, Markets, Policy & PracticeGlobal Forest Products Trade by Ed Pepke, EFI Forests, Markets, Policy & Practice Shanghai, China

  17. Responsible Investment in the Forest Sector Recommendations for Institutional Investors

    E-Print Network [OSTI]

    May 2012 Responsible Investment in the Forest Sector Recommendations for Institutional Investors by New Forests Asset Management Pty Limited ("New Forests"). The material in this report is from sources believed by New Forests to be reliable, but the information is not warranted and may contain errors

  18. Forests, Foraging and Fires August 23November 12, 2014

    E-Print Network [OSTI]

    Barrash, Warren

    Forests, Foraging and Fires August 23­November 12, 2014 Forests, Foraging and Fires Catherine, Shannon Durbin is fascinated by the conflict between the role of fire in maintaining healthy forests beauty of forest fires." In the installation Thank You, Fog, Spencer Finch presents 60 photographs made

  19. LBTO Forest Fire Contingency Plan 5 Doc_info_start

    E-Print Network [OSTI]

    Ziurys, Lucy M.

    LBTO Forest Fire Contingency Plan 5 Doc_info_start Title: LBTO Forest Fire Contingency Plan: Date_of_Release: File Type: MS Word Local Name: LBTO Forest Fire Contingency Plan Category: Overview: 004s001 Revision: a Doc_info_end #12;LBTO Forest Fire Contingency Plan 4 TO SECURE THE LBTO ENCLOSURE

  20. Appendix 30 Fire Effects on Key Ecological Processes in Forested

    E-Print Network [OSTI]

    Appendix 30 Fire Effects on Key Ecological Processes in Forested Ecosystems The following paragraphs on fire effects on forest succession are from Stickney (1982) Forest Succession ...the severity of the pre-disturbance forest herb species also demonstrated the ability to survive fire, particularly those

  1. Forest Enterprise Scotland Head Office 1 Highlander Way

    E-Print Network [OSTI]

    #12;2 Scotland'sNationalForestEstate2013-2016 The role of Scotland's National Forest Estate Commission Picture Library unless otherwise stated. Designed by Whitenoise Creative for Forestry Commission of Forestry Commission Scotland charged with managing the National Forest Estate. Scotland's National Forest

  2. Educational Needs of Southern Forest Landowners October 2006

    E-Print Network [OSTI]

    use tax rolls to develop forest landowner databases. Once developed, newsletters, pamphlets, brochures

  3. Discriminant forest classification method and system

    DOE Patents [OSTI]

    Chen, Barry Y.; Hanley, William G.; Lemmond, Tracy D.; Hiller, Lawrence J.; Knapp, David A.; Mugge, Marshall J.

    2012-11-06

    A hybrid machine learning methodology and system for classification that combines classical random forest (RF) methodology with discriminant analysis (DA) techniques to provide enhanced classification capability. A DA technique which uses feature measurements of an object to predict its class membership, such as linear discriminant analysis (LDA) or Andersen-Bahadur linear discriminant technique (AB), is used to split the data at each node in each of its classification trees to train and grow the trees and the forest. When training is finished, a set of n DA-based decision trees of a discriminant forest is produced for use in predicting the classification of new samples of unknown class.

  4. Wake Turbulence of Two NREL 5-MW Wind Turbines Immersed in a Neutral Atmospheric Boundary-Layer Flow

    E-Print Network [OSTI]

    Bashioum, Jessica L; Schmitz, Sven; Duque, Earl P N

    2013-01-01

    The fluid dynamics video considers an array of two NREL 5-MW turbines separated by seven rotor diameters in a neutral atmospheric boundary layer (ABL). The neutral atmospheric boundary-layer flow data were obtained from a precursor ABL simulation using a Large-Eddy Simulation (LES) framework within OpenFOAM. The mean wind speed at hub height is 8m/s, and the surface roughness is 0.2m. The actuator line method (ALM) is used to model the wind turbine blades by means of body forces added to the momentum equation. The fluid dynamics video shows the root and tip vortices emanating from the blades from various viewpoints. The vortices become unstable and break down into large-scale turbulent structures. As the wakes of the wind turbines advect further downstream, smaller-scale turbulence is generated. It is apparent that vortices generated by the blades of the downstream wind turbine break down faster due to increased turbulence levels generated by the wake of the upstream wind turbine.

  5. 5 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    for Small and Medium Sized Primary Forest Products Processors Author: Smith, Robert L.; Cesa , Edward T

  6. 25 November 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    25 November 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR://www.scientificamerican.com/article/should-american-wood-fuel-european-power/Energy & Sustainability a seafaring protest during a forest industry conference. Participants at this week's Mid-Atlantic Forest

  7. The management of fire-prone forests, especially within the national forests of the west, is one of the

    E-Print Network [OSTI]

    California at Berkeley, University of

    The management of fire-prone forests, especially within the national forests of the west, is one). Many forests, however, have been degraded over the past century by misguided fire management, as well fire regimes in some forest types (Covington and Moore 1994; Schoennagel et al. 2004). Key structural

  8. The impacts and implications of an intensifying fire regime on Alaskan boreal forest composition and albedo

    E-Print Network [OSTI]

    2011-01-01

    stand age on the boreal forest energy balance. Agriculturalwhereas latent energy fluxes in spruce forests, with theirenergy exchange in Arctic tundra and boreal forest:

  9. High-latitude cooling associated with landscape changes from North American boreal forest fires

    E-Print Network [OSTI]

    Rogers, B. M; Randerson, J. T; Bonan, G. B

    2013-01-01

    stand age on the bo- real forest energy balance, Agr. Forestenergy exchange in Arctic tundra and boreal forest:diox- ide and energy fluxes, Agr. Forest Meteorol. , 96,

  10. Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems

    E-Print Network [OSTI]

    Chambers, S. D; Randerson , J. T.; Beringer, J.; Chapin , F. S

    2005-01-01

    EFFECTS ON SURFACE ENERGY EXCHANGE forest: Evidence from1998), Energy balance storage terms in a mixed forest,and energy exchanges of a boreal black spruce forest, J.

  11. The Tropical Forest and Fire Emissions Experiment: overview and airborne fire emission factor measurements

    E-Print Network [OSTI]

    2007-01-01

    W. M. : The tropical forest and fire emissions experiment:Physics The Tropical Forest and Fire Emissions Experiment:A. : The tropical forest and fire emissions experiment:

  12. Producing Pine Straw in East Texas Forests 

    E-Print Network [OSTI]

    Taylor, Eric; Foster, C. Darwin

    2004-01-09

    Managing pine forests for the production of pine straw is a promising new enterprise in East Texas. This publication explains the processes and equipment needed to harvest and market pine straw....

  13. A Blueprint for Forest Products Industry

    E-Print Network [OSTI]

    ;Integrated Market-Based Value-Added Forest Sector Economic Development Other Issues Environmental Political Economic Development Other Issues Environmental Political Community Development Issues Stakeholder analysis Sustainability Other Issues Environmental Political Community Development Issues Stakeholder

  14. Forest County Potawatomi Community- 2010 Project

    Broader source: Energy.gov [DOE]

    The Forest County Potawatomi Community ("FCPC" or "Tribe") owns a six-story parking facility that consists of two separate buildings located on fee land adjacent to its Milwaukee Bingo Casino operation.

  15. Working Paper #7 Louisiana Forest Products Laboratory

    E-Print Network [OSTI]

    Wu, Qinglin

    -rich communities. Further, secondary forest products wages often exceed average wages of other jobs in rural areas companies (12). In addition, export oriented timber related #12;3 companies may offer rural communities

  16. Building Emergency Response Plan Forest Science Centre

    E-Print Network [OSTI]

    British Columbia, University of

    Building Emergency Response Plan Forest Science Centre (Including the Advanced Wood Processing;Building Emergency Response Plan 17/05/2013 Page 1 Table of Contents Emergency Telephone Numbers ......................................................................................................................... 5 Life Safety Systems and Building Features

  17. BIODIVERSITY AND DEVELOPMENT: EUCALYPTUS & FOREST LAW

    E-Print Network [OSTI]

    Gray, Matthew

    Other: A. 4% to sawmills B. Wood pellets C. in Brazil. Specializations include: Wood construction, Industrialization and marketing of forest products system Short rotations of 6-7 years Managed for Fiber or Fuel-wood http

  18. 2014 Urban Forest Symposium Tom Hinckley

    E-Print Network [OSTI]

    Brown, Sally

    2014 Urban Forest Symposium Tom Hinckley Professor Emeritus May 24, 2014 #12;Questions, temperature, ppt, extremes) #12;Simple Model: Carbon and Stress Leaf GrowthCarbon Production Carbon Storage, solarization · Growing season ­ Soil moisture ­ Atmospheric (wind, temperature, humidity, radiation) ­ Outcomes

  19. HIGH-GRADIENT, HIGH-TRANSFORMER-RATIO, DIELECTRIC WAKE FIELD ACCELERATOR

    SciTech Connect (OSTI)

    Jay L. Hirshfield

    2012-04-12

    The Phase I work reported here responds to DoE'ss stated need "...to develop improved accelerator designs that can provide very high gradient (>200 MV/m for electrons...) acceleration of intense bunches of particles." Omega-P'�s approach to this goal is through use of a ramped train of annular electron bunches to drive a coaxial dielectric wakefield accelerator (CDWA) structure. This approach is a direct extension of the CDWA concept from acceleration in wake fields caused by a single drive bunch, to the more efficient acceleration that we predict can be realized from a tailored (or ramped) train of several drive bunches. This is possible because of a much higher transformer ratio for the latter. The CDWA structure itself has a number of unique features, including: a high accelerating gradient G, potentially with G > 1 GeV/m; continuous energy coupling from drive to test bunches without transfer structures; inherent transverse focusing forces for particles in the accelerated bunch; highly stable motion of high charge annular drive bunches; acceptable alignment tolerances for a multi-section system. What is new in the present approach is that the coaxial dielectric structure is now to be energized by-not one-�but by a short train of ramped annular-shaped drive bunches moving in the outer coaxial channel of the structure. We have shown that this allows acceleration of an electron bunch traveling along the axis in the inner channel with a markedly higher transformer ratio T than for a single drive bunch. As described in this report, the structure will be a GHz-scale prototype with cm-scale transverse dimensions that is expected to confirm principles that can be applied to the design of a future THz-scale high gradient (> 500 MV/m) accelerator with mm-scale transverse dimensions. We show here a new means to significantly increase the transformer ratio T of the device, and thereby to significantly improve its suitability as a flexible and effective component in a future high energy, high gradient accelerator facility. We predict that the T of a high gradient CDWA can be increased by a substantial factor; this enhancement is dramatically greater than what has been demonstrated heretofore. This large enhancement in T that we predict arises from using a train of three or four drive bunches in which the spacing of the bunches and their respective charges are selected according to a simple principle that requires each bunch lose energy to the wakefields at the same rate, so as not to sacrifice drive beam efficiency�¢����as would be the case if one bunch exhausted its available energy while others had not. It is anticipated that results from the study proposed here can have a direct impact on design of the dielectric accelerator in a TeV-scale collider concept, and in the accelerator for an x-ray FEL.

  20. Dynamic Wake-up and Topology Maintenance Protocols with Spatiotemporal Guarantees

    E-Print Network [OSTI]

    Lu, Chenyang

    Bhattacharya, Guoliang Xing, Chenyang Lu, Gruia-Catalin Roman, Octav Chipara and Brandon Harris Department of Computer Science and Engineering Washington University in St. Louis {sangbhat, xing, lu, roman, ochipara to be delivered at the right time and also at the right location. As motivating examples, we now describe two

  1. Bachelor thesis: "Validation of an engineering model of the near wake wind field of wind turbines based on nacelle based lidar measurements"

    E-Print Network [OSTI]

    Peinke, Joachim

    , in an early stage of wind farm layout optimisation and wind turbine loading calculation in wind farms by Ainslie[1], This is widely used in the industry for wind farming purposes. Scope During this project analysis are performed of near wake measurements of a 5 MW wind turbine at the offshore test field alpha

  2. As officials in Japan deal with the accumulation of radioactive seawater near the devastated Fukushima Daiichi nuclear power plant in the wake of last month's

    E-Print Network [OSTI]

    Danon, Yaron

    Fukushima Daiichi nuclear power plant in the wake of last month's earthquake and tsunami, the U.S. Department of Energy is investing in fundamental research it hopes can be used to build safer nuclear reactors and avoid reactor emergencies. The department's Nuclear Criticality Safety Program (NCSP

  3. Paper BL3.199 EWEC 2007 Wind Energy Conference and Exhibition BL3.199 Wake Modelling for intermediate and large wind farms

    E-Print Network [OSTI]

    Paper BL3.199 EWEC 2007 Wind Energy Conference and Exhibition 1 BL3.199 Wake Modelling for intermediate and large wind farms Ole Rathmann1, 3 , Sten Frandsen1 , and Rebecca Barthelmie2, 1 1 Wind Energy.rathmann@risoe.dk Summary Modern, very large wind farms require large-scale effects to be taken into account when evaluating

  4. ..but goals must balance curiosity : Research Fortnight : Mar 5 In the wake of the U-turn last week that gives UK astronomers continued access to the Gemini

    E-Print Network [OSTI]

    Crowther, Paul

    ..but goals must balance curiosity : Research Fortnight : Mar 5 In the wake of the U-turn last week to address government priorities. The UK needs to get the balance right between supporting curiosity-driven and goal-oriented research. The balance is clearly shifting to the latter. Before we topple, the scientific

  5. CHINA AND FOREST TRADE IN THE ASIA-PACIFIC REGION: IMPLICATIONS FOR FORESTS AND LIVELIHOODS

    E-Print Network [OSTI]

    in Endangered Species. For further information please contact: R. Juge Gregg, Washington, DC, rjgregg for ecosystem services provided by forests such as watershed protection, biodiversity and carbon storage. Forest NGOs and investment institutions. For further information, please contact: Kerstin Canby, kcanby

  6. Evaluation of yield regulation options for primary forest in Tapajos National Forest, Brazil

    E-Print Network [OSTI]

    Evaluation of yield regulation options for primary forest in Tapajo´s National Forest, Brazil PaulJN, Scotland b Instituto do Homem e Meio Ambiente da Amazo^nia (IMAZON), CEP 66060-160 Bele´m, Brazil c Projeto Dendrogene, EMBRAPA, CEP 66095-100 Bele´m, Brazil Received 23 November 2005; received

  7. Forest Fuel Reduction Survey Analysis: Forest Administrators Cornelis F. de Hoop

    E-Print Network [OSTI]

    Forest Fuel Reduction Survey Analysis: Forest Administrators by Cornelis F. de Hoop Amith Hanumappa to seriously investigate and execute the methods required to carry out a successful fuel reduction project operations wherein fuel reduction is a primary management objective. Literature on this wave of activity

  8. Forest sector: A world bank policy paper. Sector forestal: Documento de politica del banco mundial

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    Forests are the most extensive terrestrial ecosystem, and nearly 500 million people depend on forests for their livelihood. Since the World Bank issued its forestry sector policy paper in 1978, there has been growing concern about the accelerated rate of destruction of the remaining primary forests in various parts of the world. The policy paper identifies two key challenges: to slow the alarmingly rapid rates of deforestation, especially (although not exclusively) in the tropical moist forests, and to ensure adequate planting of new trees to meet the rapidly growing demand for fuelwood in developing countries. The Bank intends to move vigorously to promote the conservation of natural forests and the sustainable development of managed forestry resources.

  9. Development and Validation of a New Blade Element Momentum Skewed-Wake Model within AeroDyn: Preprint

    SciTech Connect (OSTI)

    Ning, S. A.; Hayman, G.; Damiani, R.; Jonkman, J.

    2014-12-01

    Blade element momentum methods, though conceptually simple, are highly useful for analyzing wind turbines aerodynamics and are widely used in many design and analysis applications. A new version of AeroDyn is being developed to take advantage of new robust solution methodologies, conform to a new modularization framework for National Renewable Energy Laboratory's FAST, utilize advanced skewed-wake analysis methods, fix limitations with previous implementations, and to enable modeling of highly flexible and nonstraight blades. This paper reviews blade element momentum theory and several of the options available for analyzing skewed inflow. AeroDyn implementation details are described for the benefit of users and developers. These new options are compared to solutions from the previous version of AeroDyn and to experimental data. Finally, recommendations are given on how one might select from the various available solution approaches.

  10. Edge effects in a forest mosaic: implications for oak regeneration in the Highlands of Chiapas, Mexico. 

    E-Print Network [OSTI]

    López-Barrera, Fabiola

    Forest edges created by scattered-patch clear-cutting have become a common landscape feature in tropical montane forests, including pine-oak and evergreen cloud forests. Forest-edge-pasture gradients were characterised ...

  11. A meta-analysis of soil microbial biomass responses to forest disturbances

    E-Print Network [OSTI]

    Holden, Sandra R; Treseder, Kathleen K

    2013-01-01

    bon emissions from Canadian forest fires, 1959–1999. Can. J.in forests. For example, forest fires burn an aver- age of ?type included: burn, forest fire, prescribed fire,

  12. New York University UNIVERSITY POLICIES

    E-Print Network [OSTI]

    Van Den Eijnden, Eric

    1 New York University UNIVERSITY POLICIES Title: Developing University Policies Effective Date President, Office of the President Responsible Officer: General Counsel Policy It is the policy of New York

  13. Prepared by: Ryan Nadel In August this year, the International Union of Forest Research Organisations (IUFRO) hosted its 23rd

    E-Print Network [OSTI]

    for people; Climate change and forestry; Bio-Energy; Forest Biodiversity Conservation; Forests and water

  14. Interlocking Cross-Laminatd Timber (ICLT) for Rural Architecture Ryan E. Smith & Jeff Cramer, ITAC, University of Utah

    E-Print Network [OSTI]

    Tipple, Brett

    Interlocking Cross-Laminatd Timber (ICLT) for Rural Architecture Ryan E. Smith-grade wood to be used in a high value structural situation, estimated to last - Department of Agriculture, Forest Products Laboratory University of Utah, Technology

  15. Renewal of Collaborative Research: Economically viable Forest Harvesting Practices that Increase Carbon Sequestration

    SciTech Connect (OSTI)

    Dail, David Bryan

    2012-08-02

    This technical report covers a 3-year cooperative agreement between the University of Maine and the Northeastern Forest Experiment Station that focused on the characterization of forest stands and the assessment of forest carbon storage (see attached for detailed description of the project). The goal of this work was to compare estimates of forest C storage made via remeasurement of FIA-type plots with eddy flux measurements. In addition to relating whole ecosystem estimates of carbon storage to changes in aboveground biomass, we explored methodologies by partitioning growth estimates from periodic inventory measurements into annual estimates. In the final year, we remeasured plots that were subject to a shelterwood harvest over the winter of 2001-02 to assess the production of coarse woody debris by this harvest, to remeasure trees in a long-term stand first established by NASA, to carry out other field activities at Howland, and, to assess the importance of downed and decaying wood as well as standing dead trees to the C inputs to harvested and non harvested plots.

  16. University Bookstore University Art Store

    E-Print Network [OSTI]

    Sorin, Eric J.

    & Pub* Nugget Express* Squeeze Me Starbucks* The Outpost Grill* University Student Union Carl's Jr El Ground Floor Coffee House Central Park Coffee House University Library Starbucks* DINING www

  17. Path Planning Algorithm for Extinguishing Forest Fires

    E-Print Network [OSTI]

    Kumar, M P Sivaram

    2012-01-01

    One of the major impacts of climatic changes is due to destroying of forest. Destroying of forest takes place in many ways but the majority of the forest is destroyed due to wild forest fires. In this paper we have presented a path planning algorithm for extinguishing fires which uses Wireless Sensor and Actor Networks (WSANs) for detecting fires. Since most of the works on forest fires are based on Wireless Sensor Networks (WSNs) and a collection of work has been done on coverage, message transmission, deployment of nodes, battery power depletion of sensor nodes in WSNs we focused our work in path planning approach of the Actor to move to the target area where the fire has occurred and extinguish it. An incremental approach is presented in order to determine the successive moves of the Actor to extinguish fire in an environment with and without obstacles. This is done by comparing the moves determined with target location readings obtained using sensors until the Actor reaches the target area to extinguish f...

  18. LITHUANIAN FOREST RESEARCH INSTITUTE Studies on forestry, technology and

    E-Print Network [OSTI]

    .......................................................................................20 3.3. Calculation of forest fuel cost production in Rokiskis forest enterprise Final report Financed by Swedish Energy Agency Girionys ­ 2002 http..................................................................................................22 3.5. Cost effecting factors

  19. Global forest governance --Bringing forestry science (back) in Stefan Werland

    E-Print Network [OSTI]

    Global forest governance -- Bringing forestry science (back) in Stefan Werland Technical, global environmental problems are complex issues. Political decision makers increasingly depend will draw upon an alternative, broader conception of `global forest governance'. After pointing out

  20. Soil Disturbance from an Integrated Mechanical Forest Fuel Reduction

    E-Print Network [OSTI]

    Bolding, M. Chad

    Soil Disturbance from an Integrated Mechanical Forest Fuel Reduction Operation in Southwest Oregon1 literature has quantified harvesting system effectiveness or soil disturbance concerns from such operations. This paper reports results of soil disturbance generated from an integrated forest harvesting

  1. One-dimensional general forest fire processes

    E-Print Network [OSTI]

    Bressaud, Xavier

    2011-01-01

    We consider the one-dimensional generalized forest fire process: at each site of $\\zz$, seeds and matches fall according some i.i.d. stationary renewal processes. When a seed falls on an empty site, a tree grows immediately. When a match falls on an occupied site, a fire starts and destroys immediately the corresponding connected component of occupied sites. Under some quite reasonable assumptions on the renewal processes, we show that when matches become less and less frequent, the process converges, with a correct normalization, to a limit forest fire model. According to the nature of the renewal processes governing seeds, there are four possible limit forest fire models. The four limit processes can be perfectly simulated. This study generalizes consequently a previous result of the authors where seeds and matches were assumed to fall according to Poisson processes.

  2. Forest Stewardship Council FSC, A.C. All rights reserved

    E-Print Network [OSTI]

    % in the UK have started to shift to eco-friendly options such as FSC. Source: Publishers World #12;Forest

  3. INTRODUCTION: The success of a forest residual based biofuels

    E-Print Network [OSTI]

    Brown, Sally

    to hydro power, but not at the expense of hydro power." These findings demonstrate that while family forest

  4. Japanese Large Corporations' Use of Forest Certification in

    E-Print Network [OSTI]

    ,107 (April 2011), PEFC: 205 (June 2011), SGEC: 409 (June 2011) As a major importer of forest products, Japan

  5. JAPAN GOING TOWARD FOREST CERTIFICATION September 24, 2004

    E-Print Network [OSTI]

    )........................................................... 4 PEFC (Pan-European Forest Certification Certificates (3 companies, 15th Sep. 2004) ................................... 8 PEFC COC Certificates (2

  6. Forest Certification Programs in North and South America

    E-Print Network [OSTI]

    and principles Tree Farm / SFI - PEFC mutual recognition FSC small forests program All U.S. systems revised

  7. Remotely sensed heat anomalies linked with Amazonian forest biomass declines

    E-Print Network [OSTI]

    Toomey, M.; Roberts, D. A.; Still, C.; Goulden, M. L.; McFadden, J. P.

    2011-01-01

    with Amazonian forest biomass declines Michael Toomey, 1 Darof aboveground living biomass (p biomass declines, Geophys. Res.

  8. UNIVERSITY OF ABERDEEN UNIVERSITY COURT

    E-Print Network [OSTI]

    Neri, Peter

    application for the refurbishment had been submitted to Aberdeen City Council. The University had also signed

  9. The effect of expertise on the quality of forest standards implementation: The case of FSC forest certification in Russia

    E-Print Network [OSTI]

    environmental norms and standards in a specific local context. They interpret abstract global standards through environmental governance project. We then describe the FSC certification procedure and identify key actors Experts Forest certification Forest management assessment Environmental auditing The central question

  10. Forest Fire Spread and Suppression in DEVS Lewis Ntaimo1

    E-Print Network [OSTI]

    Forest Fire Spread and Suppression in DEVS Lewis Ntaimo1 , Bithika Khargharia2 , Bernard P. Zeigler2 , Maria J. Vasconcelos3 Abstract In this paper we discuss modeling and simulation of forest fire simulation-based predictions of forest fire spread and suppression in uniform and non-uniform environmental

  11. PNGFIA FOREST INDUSTRY PLAN 2001 -2036 MORE TREES

    E-Print Network [OSTI]

    papers, tissues and packaging · Timber is a natural, renewable, energy efficient resource. · ForestPNGFIA FOREST INDUSTRY PLAN 2001 - 2036 · MORE TREES · MORE INVESTMENT · MORE JOBS · MORE RURAL DEVELOPMENT PNG Forest Industry Development Plan 2001-2036 1 http://www.pomcci.org.pg/hiri2001/PNGFIA.doc #12

  12. Marketing a National Forest: The Resource Manager's Dilemma1

    E-Print Network [OSTI]

    Marketing a National Forest: The Resource Manager's Dilemma1 Howard A. Clonts Jeffrey R. Hibbert 2 Forest in Alabama were surveyed to develop appropriate marketing strategies. Cluster analysis showed marketing strategies. Forest based recreation is continually gaining participants. Opportunities to pursue

  13. Prediction of Forest Fires using Data Mining Methods

    E-Print Network [OSTI]

    McLeod, Ian

    Prediction of Forest Fires using Data Mining Methods By Hye Rin Kim Supervised by Dr. McLeod Master's Project July 2009 #12;Contents 1 Executive Summary 2 2 Introduction 2 2.1 Forest Fire Data . . . . . . . . . . . . . . . . . . . . . 11 5 Conclusion 13 6 References 14 1 #12;1 Executive Summary Forest fires are a major environmental

  14. 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

  15. Research Summary Consultation and community involvement in forest planning

    E-Print Network [OSTI]

    Research Summary Consultation and community involvement in forest planning: research in Cranborne of the Forestry Commission's `Long-Term Forest Plan' process. It also builds on various investigations into stakeholder analysis and the use of participatory tools in relation to Forest Design Plans (FDPs). The NFNF

  16. FOREST VALUES IN NORTHERN ONTARIO: PUBLIC TRADEOFFS AND SUSTAINABILITY

    E-Print Network [OSTI]

    FOREST VALUES IN NORTHERN ONTARIO: PUBLIC TRADEOFFS AND SUSTAINABILITY by Jeff Moore H Management PROJECT TITLE: Forest Values in Northern Ontario: Public Tradeoffs and Sustainability REPORT NO. To ensure sustainability for the forests of northern Ontario, critical minimum levels of natural, social

  17. What can I do with a degree in Forest Engineering?

    E-Print Network [OSTI]

    Hickman, Mark

    What can I do with a degree in Forest Engineering? ENGINEERING Planning your career Choosing a career involves more than just finding out what is open to you. Knowledge about yourself is central.canterbury.ac.nz/liaison/best_prep.shtml What is Forest Engineering? Forest engineering is a hybrid of engineering, forestry and management

  18. FOREST FIRES AND OIL FIELDS AS PERCOLATION PHENOMENA.

    E-Print Network [OSTI]

    Reed, W.J.

    FOREST FIRES AND OIL FIELDS AS PERCOLATION PHENOMENA. William J. Reed #3; JUNE, 1999. Abstract A probability distribution derived from percolation theory is #12;tted to large datasets on the sizes of forest forest #12;res and oil #12;elds as percolation phenomena as well as suggesting the consideration of a new

  19. Levels and Sources of Forest Fire Prevention Knowledge

    E-Print Network [OSTI]

    Standiford, Richard B.

    Levels and Sources of Forest Fire Prevention Knowledge of California Hunters William S. Folkman U;Folkman, William S. 1963. Levels and sources of forest fire prevention knowl- edge of California hunters-managerial occupations. Their level of knowl- edge about forest fire prevention is generally high, but their knowledge

  20. The Impact of Boreal Forest Fire on Climate Warming

    E-Print Network [OSTI]

    Zender, Charles

    The Impact of Boreal Forest Fire on Climate Warming J. T. Randerson,1 * H. Liu,2 M. G. Flanner,1 S measurements and analysis of a boreal forest fire, integrating the effects of greenhouse gases, aerosols, black the concept of radiative forcing (12) to assess quantitatively the net effect of a boreal forest fire

  1. Forest Management Helps Save Chadron State Park from Fire

    E-Print Network [OSTI]

    Farritor, Shane

    Forest Management Helps Save Chadron State Park from Fire OVER THE PAST HALF-CENTURY, wildfire has Creek Fire on its deadly rampage across the Pine Ridge. The good news is that due to active forest no infrastructure and its forest survived the fire intact. About 90 percent of the Park burned, with the majority

  2. forest ecology Using Fire to Increase the Scale, Benefits, and

    E-Print Network [OSTI]

    North, Malcolm

    forest ecology Using Fire to Increase the Scale, Benefits, and Future Maintenance of Fuels limited to affect fire severity and the Forest Service has predominantly focused on suppression, and institutional barriers to increased fire use that we discuss. Keywords: fire policy, fire suppression, forest

  3. APPLICATIONS Forest Fire Spread and Suppression in DEVS

    E-Print Network [OSTI]

    Ntaimo, Lewis

    APPLICATIONS Forest Fire Spread and Suppression in DEVS Lewis Ntaimo Department of Industrial. Speedway Tucson, AZ 85721 In this article, the authors discuss modeling and simulation of forest fire to obtain timely simulation-based predictions of forest fire spread and suppression in uniform

  4. Forest Fragmentation in Connecticut: 1985 2006 Research Summary

    E-Print Network [OSTI]

    Alpay, S. Pamir

    in 2009, based on research done by Vogt et al. The Landscape Fragmentation Tool maps the types Forest Fragmentation in Connecticut: 1985 ­ 2006 Research Summary About the Project Forest for the fragmentation of Connecticut's forests, and how fragmentation has progressed over time, CLEAR researchers

  5. Advisory Committee on Forest Research Paper 2001/02

    E-Print Network [OSTI]

    Advisory Committee on Forest Research Paper 2001/02 Report of Visiting Group ­ Forest Research Environmental Research Branch 29 ­ 30 October 2001 1. Review Procedures On the invitation of Mr Jim Dewar, Chief visited the Alice Holt Research Station of Forest Research on 29 and 30 October 2001. Secretarial support

  6. DWARF MISTLETOE CONTROL IN RESIDENTIAL FORESTS-1/ John G. Laut-

    E-Print Network [OSTI]

    DWARF MISTLETOE CONTROL IN RESIDENTIAL FORESTS-1/ 2/ John G. Laut- Abstract: Residential forests-pressure. These people demand answers to questions about tree manage- ment -- not necessarily forest management people-pressures present new problems with new dimensions that demand new potential . solutions

  7. Forest Products Market Information Systems in the UNECE region.

    E-Print Network [OSTI]

    Forest Products Market Information Systems in the UNECE region. L. Farquharson August 2007 #12;#12;A report into Forest Products Market Information Systems_____________________________ 1 1. EXECUTIVE____________________________________________________15 #12;2 ____________________________ A report into Forest Products Market Information Systems 2 1

  8. Biomass Chronosequences of United States Forests: Implications for Carbon Storage

    E-Print Network [OSTI]

    Lichstein, Jeremy W.

    Management and Carbon Sequestration Forests account for a large fraction of the carbon stored in global soils for forest management aimed at carbon sequestration is controversial. On the one hand, logging diminishes of succession (Peet 1981, 1992; Shugart 1984). In the context of forest management aimed at carbon sequestration

  9. TEXAS&STATEWIDE&ASSESSMENT&& OF&FOREST&ECOSYSTEM&SERVICES&

    E-Print Network [OSTI]

    TEXAS&STATEWIDE&ASSESSMENT&& OF&FOREST&ECOSYSTEM&SERVICES& A&comprehensive&analysis&of®ulating& and&cultural&services&provided&by&Texas'&forests& & & & & & October&2013 June 2009 #12;#12;Texas&Statewide&Assessment&of&& Forest&Ecosystem&Services& A&comprehensive&analysis&of&the®ulating&and&& cultural&services&provided&by&Texas

  10. SCIENCE AND FOREST CONCESSIONS Bastiaan Louman, Fernando Carrera1

    E-Print Network [OSTI]

    of experience with forest concessions while Guatemala ventured into its first community concession in 1994. Peru. In Guatemala 14 concessions exist that cover a total of 512,786 has of forest while in Peru the process has of concessions in Bolivia, Guatemala and Peru include the costs of forest management, slow and difficult

  11. Simulating the Future Forested Landscapes of the Oregon

    E-Print Network [OSTI]

    Modeled 1. Small gap (wind, disease, other) 2. Private land development 3. Forest management, especially Lennette, Landscape Modeling · Jonathan Thompson, Analysis · Justin Goodwin, Analysis #12;Topics 1. Types to 2095). #12;Present 2096 PUBLIC & TRIBAL LANDS PRIVATE LANDS Urban Forest Urban Non-Forest Low

  12. Impact of Biomass Harvesting on Forest Soil Productivity in the

    E-Print Network [OSTI]

    Impact of Biomass Harvesting on Forest Soil Productivity in the Northern Rocky Mountains Woongsoon; Keyes, Christopher R.; Page-Dumroese, Deborah. 2015. Impact of biomass harvesting on forest soil of Agriculture, Forest Service, Rocky Mountain Research Station. 35 p. Abstract Biomass harvesting extracts

  13. Training Needs in Louisiana's Value-Added Forest Products Industry

    E-Print Network [OSTI]

    Training Needs in Louisiana's Value-Added Forest Products Industry Richard VloskyRichard VloskyLSU Agricultural Center England Air ParkEngland Air Park--January 18, 2005January 18, 2005 Louisiana Forest Products Development Center Louisiana Forest Products Development Center #12;Outline · Industry Development

  14. 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

  15. Energy and Nutrient Dynamics of Forest Floors in Three Minnesota Forests Author(s): W. A. Reiners and N. M. Reiners

    E-Print Network [OSTI]

    Thomas, David D.

    Energy and Nutrient Dynamics of Forest Floors in Three Minnesota Forests Author(s): W. A. Reiners. http://www.jstor.org #12;497 ENERGY AND NUTRIENT DYNAMICS OF FOREST FLOORS IN THREE MINNESOTA FORESTS and subsequent utilization by heterotrophs is a major pathway of energy flow. Forest floors can also

  16. Session K--Estimating Forest Fuels--Gebert, Schuster, Woudenberg, O'Brien USDA Forest Service Gen. Tech. Rep. PSW-GTR-189. 2008. 285

    E-Print Network [OSTI]

    . Tech. Rep. PSW-GTR-189. 2008. 285 Estimating Forest Fuels in the Southwest Using Forest Inventory Data1 objective of this study was to demonstrate the linkages between forest inventory data and hazardous fuelSession K--Estimating Forest Fuels--Gebert, Schuster, Woudenberg, O'Brien USDA Forest Service Gen

  17. Laboratory Dynamos Professor Cary Forest

    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 CubicResourcelogo and masthead Berkeley Lablooks to

  18. 16 July 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    16 July 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR building rating system in the world: USGBC's LEED (Leadership in Energy and Environmental Design. ----------------------------------------------------------------- Richard P. Vlosky, Ph.D. Director Louisiana Forest Products Development Center Crosby Land & Resources

  19. 18 December 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    ://content.govdelivery.com/accounts/USFSA/bulletins/e3831c USDA Improves Forest Health by Harvesting Biomass for Energy 12/16/2014 02:57 PM EST USDA Improves Forest Health by Harvesting Biomass for Energy 2014 Farm Bill Program Generates Renewable Energy of dead or diseased trees from National Forests and Bureau of Land Management lands for renewable energy

  20. 11 March 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTORT/FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    market signals for forest products, including energy. As stated by the Intergovernmental Panel on Climate11 March 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTORT it's time to get the policy right on biomass energy carbon accounting The clock is ticking

  1. 2 October 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    ; and continues to be one of the top ten manufacturing sectors in the state. The report analyzes data collected products such as lumber, structural panels, paper and pulp. Manufacturing of secondary forest products like and visit TexasForestInfo.com for additional information on economic impacts of the Texas forest sector

  2. 25 November 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    / FORESTY PRODUCTS INTEREST GROUP Fracking gets green light in largest national forest on East Coast US will allow a form of natural gas drilling known as fracking to occur in parts of the largest national forest on the East Coast. The U.S. Forest Service originally planned to ban fracking in the 1.1 million-acre George

  3. 27 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    of its landmass to combat climate change and soil erosion, the State Forestry Administration said27 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR of the new forested land was low-quality, and pointed out that while new trees are planted rapidly, data

  4. Effects of warming on the structure and function of a boreal black spruce forest

    SciTech Connect (OSTI)

    Stith T.Gower

    2010-03-03

    A strong argument can be made that there is a greater need to study the effect of warming on boreal forests more than on any other terrestrial biome. Boreal forests, the second largest forest biome, are predicted to experience the greatest warming of any forest biome in the world, but a process-based understanding of how warming will affect the structure and function of this economically and ecologically important forest biome is lacking. The effects of warming on species composition, canopy structure and biogeochemical cycles are likely to be complex; elucidating the underlying mechanisms will require long-term whole-ecosystem manipulation to capture all the complex feedbacks (Shaver et al. 2000, Rustad et al. 2001, Stromgren 2001). The DOE Program for Ecosystem Research funded a three year project (2002-2005) to use replicated heated chambers on soil warming plots in northern Manitoba to examine the direct effects of whole-ecosystem warming. We are nearing completion of our first growing season of measurements (fall 2004). In spite of the unforeseen difficulty of installing the heating cable, our heating and irrigation systems worked extremely well, maintaining environmental conditions within 5-10% of the specified design 99% of the time. Preliminary data from these systems, all designed and built by our laboratory at the University of Wisconsin, support our overall hypothesis that warming will increase the carbon sink strength of upland boreal black spruce forests. I request an additional three years of funding to continue addressing the original objectives: (1) Examine the effect of warming on phenology of overstory, understory and bryophyte strata. Sap flux systems and dendrometer bands, monitored by data loggers, will be used to quantify changes in phenology and water use. (2) Quantify the effects of warming on nitrogen and water use by overstory, understory and bryophytes. (3) Compare effects of warming on autotrophic respiration and above- and belowground net primary production (NPP) budgets. Autotrophic respiration budgets will be constructed using chamber measurements for each tissue and NPP and standard allometry techniques (Gower et al. 1999). (4) Compare microbial and root dynamics, and net soil surface CO2 flux, of control and warmed soils to identify causes that may explain the hypothesized minimal effect of soil warming on soil surface CO2 flux. Fine root production and turnover will be quantified using minirhizotrons, and microbial dynamics will be determined using laboratory mineralization incubations. Soil surface CO2 flux will be measured using automated soil surface CO2 flux systems and portable CO2 analyzers. The proposed study builds on the existing research programs Gower has in northern Manitoba and would not be possible without in-kind services and financial support from Manitoba Hydro and University of Wisconsin.

  5. Forest floor community metatranscriptomes identify fungal and bacterial responses to N deposition in two maple forests

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

    Hesse, Cedar N.; Mueller, Rebecca C.; Vuyisich, Momchilo; Gallegos-Graves, La Verne; Gleasner, Cheryl D.; Zak, Donald R.; Kuske, Cheryl R.

    2015-04-23

    Anthropogenic N deposition alters patterns of C and N cycling in temperate forests, where forest floor litter decomposition is a key process mediated by a diverse community of bacteria and fungi. To track forest floor decomposer activity we generated metatranscriptomes that simultaneously surveyed the actively expressed bacterial and eukaryote genes in the forest floor, to compare the impact of N deposition on the decomposers in two natural maple forests in Michigan, USA, where replicate field plots had been amended with N for 16 years. Site and N amendment responses were compared using about 74,000 carbohydrate active enzyme transcript sequences (CAZymes)more »in each metatranscriptome. Parallel ribosomal RNA (rRNA) surveys of bacterial and fungal biomass and taxonomic composition showed no significant differences in either biomass or OTU richness between the two sites or in response to N. Site and N amendment were not significant variables defining bacterial taxonomic composition, but they were significant for fungal community composition, explaining 17 and 14% of the variability, respectively. The relative abundance of expressed bacterial and fungal CAZymes changed significantly with N amendment in one of the forests, and N-response trends were also identified in the second forest. Although the two ambient forests were similar in community biomass, taxonomic structure and active CAZyme profile, the shifts in active CAZyme profiles in response to N-amendment differed between the sites. One site responded with an over-expression of bacterial CAZymes, and the other site responded with an over-expression of both fungal and different bacterial CAZymes. Both sites showed reduced representation of fungal lignocellulose degrading enzymes in N-amendment plots. The metatranscriptome approach provided a holistic assessment of eukaryote and bacterial gene expression and is applicable to other systems where eukaryotes and bacteria interact.« less

  6. Directory of Tennessee's forest industries 1980

    SciTech Connect (OSTI)

    Not Available

    1980-09-01

    A directory of primary and secondary forest industries is presented. Firm names and addresses are listed by county in alphabetical order. The following information is listed for each industry: type of plant, production and employee size class, products manufactured, and equipment. For the primary industries, the major species of trees used are listed. (MHR)

  7. GIS, SPATIAL STATISTICAL GRAPHICS, AND FOREST HEALTH.

    E-Print Network [OSTI]

    Symanzik, Jürgen

    1 GIS, SPATIAL STATISTICAL GRAPHICS, AND FOREST HEALTH. James J. Majure, Noel Cressie, Dianne Cook, and Jürgen Symanzik ABSTRACT This paper discusses the use of a geographic information systems (GIS), Arcview, into a geographic information system (GIS), Arcview 2.1 (ESRI 1995), and its use in the statistical analysis of spa

  8. Tree Improvement Forest Health, Productivity & Value

    E-Print Network [OSTI]

    . · Foresters maintain orchards to supply seed from select native hardwood trees for use in urban landscapes tax base. · The Lost Pines seed source was preserved off-site in a TFS drought- hardy loblolly orchard and is now providing source appropriate seed to aid in the Lost Pines Recovery Effort. · Seed orchards

  9. The Compiler Forest Mihai Budiu1

    E-Print Network [OSTI]

    Plotkin, Gordon

    The Compiler Forest Mihai Budiu1 , Joel Galenson1,2 , and Gordon D. Plotkin1,3 1 Microsoft Research the problem of writing compilers targeting complex ex- ecution environments, such as computer clusters composed of machines with multi-core CPUs. To that end we introduce partial compilers. These compilers can

  10. Publications Forest Research publishes a wide range

    E-Print Network [OSTI]

    in tourism The impact of trees on the well-being of residents on two inner-London social housing estates for recreation and nature tourism ­ European COST Action E33 Forest School: a marvellous opportunity to learn for health and well-being in Scotland: research to understand and overcome barriers to accessing woodlands

  11. UK Forestry Standard Guidelines Forests and

    E-Print Network [OSTI]

    Standard Guidelines #12;© Crown Copyright 2011 You may re-use this information (not including logos) free, visit: www.nationalarchives.gov.uk/doc/open-government-licence or write to the Information Policy Team; ecosystem services; environment; forestry; sustainable forest management; UK Forestry Standard. FCGL002/FC

  12. Bridging mycorrhizal genomics, metagenomics and forest ecology

    E-Print Network [OSTI]

    Pringle, Anne

    Meetings Bridging mycorrhizal genomics, metagenomics and forest ecology 6th New Phytologist of easily cultured saprotrophic fungi (among the first three published genomes were the models Saccharomyces or biotechnological interest, genomics is now poised to rapidly permeate the fields of fungal ecology and evolution

  13. Soil Carbon Accumulation During Temperate Forest Succession

    E-Print Network [OSTI]

    Grogan, Paul

    K7L 3N6, Canada ABSTRACT Carbon sequestration in soils that have previously beendepletedoforganic the soil carbon sequestration potential of such lands by sampling adjacent mature forest and agricultural abandonment is more important than soil type in determining the potential magnitude of carbon sequestration

  14. @ SOUTH ES'T FOREST SERVICE

    E-Print Network [OSTI]

    -01 EX^er LUMBER GRADE RECOVERY FROM HAWA ROBUSTA EUCALYPTUS LOGS Roger G.Skolmen USDA forest Service Research Note PW-204 1970 Lumber has been produced from plantation-grown robusta eucalyptus (Eucalyptus grade yield of Hawaii-grown timber, 30 robusta eucalyptus logs were shipped lo a Michigan sawmill

  15. Forest Growth Under Extensive Annual Drought

    E-Print Network [OSTI]

    Yakir, Dan

    aridity factor (precipitation/potential evaporation) of about 0.18. Annual received solar energy of ~7 forests/ Count' area K ha K ha % Morocco 2491 534 6.8 Algeria 1427 718 0.9 Tunisia 308 202 3.1 Egypt 0 72

  16. New Forests International Journal on the Biology,

    E-Print Network [OSTI]

    Martin, Timothy

    of Afforestation and Reforestation ISSN 0169-4286 Volume 45 Number 3 New Forests (2014) 45:301-309 DOI 10.1007/s silviculture programs in many companies and countries around the world and tree breeding programs have produced live in a rapidly changing world faced with: increasing demands for food, energy and water

  17. Forest Mensuration Instructor: Mr. Ken Oser, RF

    E-Print Network [OSTI]

    Ma, Lena

    covered include: individual and stand level volume estimation, natural resources inventories, sampling of principles of forest mensuration and their applications to estimate forestry resources. Some of the topics) For information on current UF policies for assigning grade points, see https://catalog.ufl.edu/ugrad/current/regulations/info

  18. An environmental and social assessment of forest

    E-Print Network [OSTI]

    in forest certification: FSC,PEFC,SFI and CSA 5 The assessment I Objective,comprehensive,and performance Table 1: The number of hectares certified under the FSC,PEFC,SFI and CSA Box 2: Governments and industry the PEFC Sweden and FSC Sweden standard Table 3: Comparison between the SFI and FSC USA standard Box 4

  19. By Rebecca Barnard, Forest Certification Coordinator

    E-Print Network [OSTI]

    - administered land. Third party and annual surveillance audits maintain or improve the DNR's forest management that their products Continued on page 4 Chain of Custody Market Outlook 2 Certification Web sites 5 Stumpage Prices 6 percent long-run trend level by mid-2009. However, energy and fuel prices have increased to levels well

  20. Ecology 2006 94, 253263

    E-Print Network [OSTI]

    Silman, Miles R.

    Conservation, Nicholas School of the Environment and Earth Sciences, Duke University, Box 90319, Durham, NC USA, Department of Biology, Wake Forest University, Winston-Salem, NC 27109 USA, and Herbario Vargas by leaf-cutter ants (Atta spp. and Acromyrmex sp.). Exposure to prevailing trade winds (windwardvs

  1. Journal of Computational Mathematics, Vol.26, No.3, 2008, 324335. BIOLUMINESCENCE TOMOGRAPHY: BIOMEDICAL

    E-Print Network [OSTI]

    Wang, Ge

    : BIOMEDICAL BACKGROUND, MATHEMATICAL THEORY, AND NUMERICAL APPROXIMATION* Weimin Han Department of Mathematics, University of Iowa, Iowa City, IA 52242, USA Email: whan@math.uiowa.edu Ge Wang Division of Biomedical Imaging, Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Virginia

  2. Fractal universe

    E-Print Network [OSTI]

    D. L. Khokhlov

    1999-01-15

    The model of the universe is considered in which background of the universe is not defined by the matter but is a priori specified as a homogenous and isotropic flat space. The scale factor of the universe follows the linear law. The scale of mass changes proportional to the scale factor. This leads to that the universe has the fractal structure with a power index of 2.

  3. PHILADELPHIA UNIVERSITY -1 1989

    E-Print Network [OSTI]

    PHILADELPHIA UNIVERSITY :: -1 1989 . . . -2 . . 3- : #12;PHILADELPHIA UNIVERSITY . (132) . #12;PHILADELPHIA UNIVERSITY

  4. E-157: A 1.4-m-long plasma wake field acceleration experiment using a 30 GeV electron beam from the Stanford Linear Accelerator

    E-Print Network [OSTI]

    conducted at the Stanford Linear Accelerator Center, a 30 GeV electron beam of 2 1010 electrons in a 0.65-mmE-157: A 1.4-m-long plasma wake field acceleration experiment using a 30 GeV electron beam from the Stanford Linear Accelerator Center Linac* M. J. Hogan, R. Assmann,a) F.-J. Decker, R. Iverson, P. Raimondi

  5. How surface fire in Siberian Scots pine forests affects soil organic carbon in the forest floor: Stocks, molecular structure, and conversion to black carbon (charcoal)

    E-Print Network [OSTI]

    Czimczik, Claudia I; Preston, Caroline M; Schmidt, Michael W. I; Schulze, Ernst-Detlef

    2003-01-01

    Ecological effects of forest fires, Bot. Rev. , 26, 483 –1 ] In boreal forests, fire is a frequent disturbance andal. , 1999]. Risk of forest fires was high during the entire

  6. Forest Biomass Supply for BioForest Biomass Supply for Bio--productionproduction in the Southeastern United Statesin the Southeastern United States

    E-Print Network [OSTI]

    Gray, Matthew

    Forest Biomass Supply for BioForest Biomass Supply for BioBio--production and biomass utilizationsproduction and biomass utilizations Industrial sector: for heat and steam Utility sector: for electricity Forest biomass: Agricultural biomass: Transportation sector: for biofuels

  7. Sustainable Nanomaterials from Forest Products: Umaine Perspective

    Broader source: Energy.gov [DOE]

    Presentation for the Sustainable Nanomaterials Workshop by University of Maine held on June 26, 2012

  8. United States Department of Agriculture Forest Service

    E-Print Network [OSTI]

    , Tahoe Regional Planning Agency, University of California at Davis, University of Nevada at Reno and Research Station, the Tahoe Regional Planning Agency, the University of California at Davis, the University, President Bill Clinton and Vice President Al Gore visited the Lake Tahoe basin to discuss issues surrounding

  9. New Mexico State University University Accounts Receivable

    E-Print Network [OSTI]

    Johnson, Eric E.

    New Mexico State University University Accounts Receivable Petty Cash Reconciliation - Instructions, should be kept on file within the department. #12;New Mexico State University University Accounts

  10. UNIVERSITY OF ABERDEEN UNIVERSITY COURT

    E-Print Network [OSTI]

    Neri, Peter

    Subsea Research Institute was to be based on the University campus. This was highly significant for the future development of the University's energy-related research and links with the oil and gas subsea

  11. United States Department of Agriculture Forest Service 1996 annual report wetlands research related to the Pen Branch restoration effort on the Savannah River site

    SciTech Connect (OSTI)

    Nelson, E.A. [Westinghouse Savannah River Company, Aiken, SC (United States); Kolka, R.K. [USDA Forest Service, Charleston, SC (United States); Trettin, C.C. [USDA Forest Service, Charleston, SC (United States)

    1997-01-01

    This report documents the role of the USDA Forest Service and their collaborators (SRTC, SREL, and several universities) in wetlands monitoring and research on the Savannah River Site. This report describes the rationales, methods, and results (when available) of these studies and summarizes and integrates the available information through 1996.

  12. FACILITIES MANAGEMENT GROUNDS The 17,000 trees in the campus forest cover one-fifth of the campus core area. According to the

    E-Print Network [OSTI]

    Ullrich, Paul

    practices to incorporate proactive urban forestry practices to make us more efficient and effective. Taking a unified plan for new development. #12;Center for Urban Forest Research University of California Davis,000 in energy costs and $58,000 in erosion control and pollution prevention yearly. Their shade value exceeds

  13. FABI WORK IN NATIVE PINE FORESTS IN GUATEMALA Project title: Understanding pest and pathogen threats to pine under expanding global cultivation

    E-Print Network [OSTI]

    FABI WORK IN NATIVE PINE FORESTS IN GUATEMALA Project title: Understanding pest and pathogen on common pine species in Guatemala, particularly those under testing as hybrid partners with Pinus patula, the University of San Carlos and the private forestry sector in Guatemala to discuss the project and avenues

  14. UCC UNIVERSITIES CLIMATE UNIVERSITY CLIMATE

    E-Print Network [OSTI]

    Kidston, Joseph

    CONSORTIUM UCC UNIVERSITIES CLIMATE UNIVERSITY CLIMATE World-class excellence Internationally recognised Australia based www.monash.edu.au/climate-consortium CONSORTIUM An International Collaborative of the institutional leads within the UCC: The University Climate Consortium (UCC) comprises four research intensive

  15. Page 290 Courses: Economics (ECON) Sonoma State University 2015-2016 Catalog eCon 319 MAnAgeriAL eConoMiCS (4)

    E-Print Network [OSTI]

    Ravikumar, B.

    Page 290 Courses: Economics (ECON) Sonoma State University 2015-2016 Catalog eCon 319 MAnAgeriAL e resources and the control of pollution. Topics include: energy, water, minerals, forests, air pollution

  16. Seasonal exchange of CO 2 and delta 18 O-CO 2 varies with postfire succession in boreal forest ecosystems

    E-Print Network [OSTI]

    Welp, L. R; Randerson, J. T; Liu, H. P

    2006-01-01

    change on Canadian forest fires, Geophys. Res. Lett. , 31,1998), Climate change and forest fire potential in Russianat three stands in a boreal forest fire chronosequence. Our

  17. Californians must learn from the past and work together to meet the forest and fire challenges of the next century

    E-Print Network [OSTI]

    Kocher, Susan

    2015-01-01

    state and federal forest and fire agencies. Moving forwardtogether to meet the forest and fire challenges of the nextmixed conifer forest: Habitat and fire hazard implications.

  18. A Geometrical Test of the Cosmological Energy Contents Using the Lyman-alpha Forest

    E-Print Network [OSTI]

    Lam Hui; Albert Stebbins; Scott Burles

    1998-07-17

    In this Letter we explore a version of the test of cosmological geometry proposed by Alcock and Paczynski (1979), using observations of the Lyman-alpha forest in the spectra of close quasar pairs. By comparing the correlations in absorption in one quasar spectrum with correlations between the spectra of neighboring quasars one can determine the relation of the redshift distance scale to the angle distance scale at the redshift of the absorbers, $z \\sim 2 - 4$. Since this relationship depends on the parameters of the cosmological model, these parameters may be determined using the Lyman-alpha forest. While this test is relatively insensitive to the density parameter $\\Omega_m$ in a dust-dominated universe, it is more sensitive to the presence of a matter component with large negative pressure (such as a cosmological constant $\\Lambda$) and its equation of state. With only 25 pairs of quasar spectra at angular separations $0.5' - 2'$, one can discriminate between an $\\Omega_m = 0.3$ open universe ($\\Lambda=0$) and an $\\Omega_m = 0.3$ flat ($\\Lambda$-dominated) universe at the $4-\\sigma$ level. The S/N can be enhanced by considering quasar pairs at smaller angular separations, but requires proper modeling of nonlinear redshift space distortions. Here the correlations and redshift space distortions are modeled using linear theory.

  19. Forest Research The Research Agency of the Forestry Commission FR Science Focus

    E-Print Network [OSTI]

    Forest Research The Research Agency of the Forestry Commission FR Science Focus 2011-16 Understanding forests and providing solutions for a sustainable future #12;Forest Research - Who we are Forest Research (FR) is the Forestry Commission's Research Agency and is the UK's foremost body for forest

  20. Machian Universe

    E-Print Network [OSTI]

    Burra G. Sidharth

    2006-10-26

    We give arguments from the point of view of Gravitation as well as Electromagnetism which indicate a Machian view for the universe.

  1. Quantitative analysis of forest island pattern in selected Ohio landscapes

    SciTech Connect (OSTI)

    Bowen, G.W.; Burgess, R.L.

    1981-07-01

    The purpose of this study was to quantitatively describe the various aspects of regional distribution patterns of forest islands and relate those patterns to other landscape features. Several maps showing the forest cover of various counties in Ohio were selected as representative examples of forest patterns to be quantified. Ten thousand hectare study areas (landscapes) were delineated on each map. A total of 15 landscapes representing a wide variety of forest island patterns was chosen. Data were converted into a series of continuous variables which contained information pertinent to the sizes, shape, numbers, and spacing of woodlots within a landscape. The continuous variables were used in a factor analysis to describe the variation among landscapes in terms of forest island pattern. The results showed that forest island patterns are related to topography and other environmental features correlated with topography.

  2. BLM and Forest Service Consider Large-Scale Geothermal Leasing...

    Office of Environmental Management (EM)

    Environmental Impact Statement (PEIS) for geothermal leasing in the West, including Alaska. The draft PEIS considers all public lands and national forests with geothermal...

  3. Methane emissions from upland forest soils and vegetation

    E-Print Network [OSTI]

    Megonigal, ABB

    2008-01-01

    Crill. 2006. A source of methane from upland forests in thecontrolling atmospheric methane con- sumption by temperateand T.B. Parkin. 2001. Methane oxidation and produc- tion

  4. Lacunarity as a texture measure for a tropical forest landscape

    SciTech Connect (OSTI)

    Su, Haiping; Krummel, J.

    1996-01-01

    Fragmentation and loss of tropical forest cover alters terrestrial plant and animal population dynamics, reduces biodiversity and carbon storage capacity, and, as a global phenomenon could affect regional and global climate patterns. Lacunarity as a texture measure can offer a simple solution to characterize the texture of tropical forest landscape and determine spatial patterns associated with ecological processes. Lacunarity quantifies the deviation from translational invariance by describing the distribution of gaps within a binary image at multiple scales. As lacunarity increases, the spatial arrangement of tropical forest gaps will also increase. In this study, we used the Spatial Modeler in Imagine as a graphic programming tool to calculate lacunarity indices for a tropical forest landscape in Southern Mexico and Northern Guatemala. Lacunarity indices were derived from classified Landsat MSS images acquired in 1974 and 1984. Random-generated binary images were also used to derive lacunarity indices and compared with the lacunarity of forest patterns derived from the classified MSS images. Tropical forest area declined about 17%, with most of the forest areas converted into pasture/grassland for grazing. During this period, lacunarity increased about 25%. Results of this study suggest that tropical forest fragmentation could be quantified with lacunarity measures. The study also demonstrated that the Spatial Modeler can be useful as a programming tool to quantify spatial patterns of tropical forest landscape by using remotely sensed data.

  5. An anthropological view of the forest culture of Peten, Guatemala

    SciTech Connect (OSTI)

    Schwartz, N.B.

    1995-12-31

    Traditional farmers and harvesters of non-timber forest products in Peten treat the forest in ways that conserve and regenerate its resources. They believe no one owns the forest outright. Humans share it with other life forms and therefore no one has the right to monopolize or destroy forest resources. Traditional Peteneros find a use for almost everything in the forest, and believe it neither smart nor proper to use a given area for a single purpose, for example, to clear an area of all trees and devote it exclusively to a cattle pasture. In the traditional system most medicinal plants, basic foodstuffs, fuelwoods and construction materials are taken from the bosque (secondary forests within walking distance of human settlements). Peteneros` sustainable use of bosques eases pressure on the monte (primary forests). In the monte Peteneros` harvesting practices are protective of resources, causing minimal damage. Finding almost everything in the forest useful, Peteneros believe all soils and plants should be tended and allowed to regenerate. However, modern developments such as uncontrolled logging, large-scale, unorganized colonization, cattle raising and market demands leading to monocropped farm plots imperil the forests of Peten and a way of life that subsumes a practical conservation ethic.

  6. Renewable Energy Deployment Projects for Forest County Potawatomi...

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

    Wisconsin. Photo from Forest County Potawatomi Community Anaerobic digesters reduce pollution and generate electricity in Milwaukee. Anaerobic digesters reduce pollution and...

  7. ITP Forest Products: Energy and Environmental Profile of the...

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

    More Documents & Publications ITP Forest Products: Report for AIChE Pulp and Paper Industry Energy Bandwidth Study Report Steam System Opportunity Assessment for the...

  8. Oregon Department of Land Conservation and Department - Forest...

    Open Energy Info (EERE)

    Land Protectio Program Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Oregon Department of Land Conservation and Department - Forest Land Protectio...

  9. Forest phenology and a warmer climate - Growing season extension...

    Office of Scientific and Technical Information (OSTI)

    - Office of Science (SC) Country of Publication: United States Language: English Subject: Climate change; phenology; spring; autumn; trees; forest; warming; Betula alleghaniensis;...

  10. Clive Brasier, Forest Research Flaws in international protocols

    E-Print Network [OSTI]

    moth, Oak processionary moth, Chestnut gall wasp... Especially Phytophthora pathogens ­ eg to the long term biosecurity and sustainability of European forests and natural ecosystems, egs .. #12;Mainly

  11. HORTICULTURAL & FOREST CROPS 2013 Table of Contents 1

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    HORTICULTURAL & FOREST CROPS 2013 Table of Contents 1 1 Regulations and Basic Information Safe Quantities of Water ............................................................................ 1-29 Table 1

  12. HORTICULTURAL & FOREST CROPS 2014 Table of Contents 1

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    HORTICULTURAL & FOREST CROPS 2014 Table of Contents 1 1 Regulations and Basic Information Safe Quantities of Water ............................................................................ 1-29 Table 1

  13. Effects of selective logging on tropical forest tree growth

    E-Print Network [OSTI]

    2008-01-01

    exchange of carbon and water in an Amazonian rain forest, J.water content cannot explain the increases in diameter observed before the onset of rains.

  14. High Tonnage Forest Biomass Production Systems from Southern...

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

    Forest Biomass Production Systems from Southern Pine Energy Plantations Feedstock Supply and Logistics: Biomass as a Commodity Feedstock Supply and Logistics:Biomass as a Commodity...

  15. Carbon calculator tracks the climate benefits of managed private forests

    E-Print Network [OSTI]

    Stewart, William C; Sharma, Benktesh D

    2015-01-01

    forests provide more carbon sequestration benefits than let-the relative carbon sequestration benefits of let-growlife cycle carbon sequestration benefits, averaged over 120,

  16. Carbon calculator tracks the climate benefits of managed private forests

    E-Print Network [OSTI]

    Stewart, William C; Sharma, Benktesh D

    2015-01-01

    First Update to the Climate Change Scoping Plan: Building onManaging forests for climate change mitigation. Science 320:IPCC] Intergovernmental Panel on Climate Change. 2006. IPCC

  17. Sustainable Development in the Forest Sector: Balancing production and consumption in a

    E-Print Network [OSTI]

    Sustainable Development in the Forest Sector: Balancing production and consumption in a challenging (consumption and demand) V. Forest products trade VI. Conclusions VII. Discussion #12;Promoting Sustainable Sustainable Consumption Workshop, Geneva, 2011 As shaped by forest products production Sources: Worldmapper

  18. Management of Giant Sequoia on Mountain Home Demonstration State Forest1

    E-Print Network [OSTI]

    Home Demonstration State Forest is a 4,800 acre tract of forest land in Tulare County managed. It reads "The Mountain Home Tract Forest in Tulare County shall be developed and maintained, pursuant

  19. Interannual variability of surface energy exchange depends on stand age in a boreal forest fire chronosequence

    E-Print Network [OSTI]

    Liu, Heping; Randerson, James T

    2008-01-01

    stand age on the boreal forest energy balance, Agric. For.RANDERSON: BOREAL FOREST FIRE AND ENERGY EXCHANGE Johnstone,AND RANDERSON: BOREAL FOREST FIRE AND ENERGY EXCHANGE uous

  20. Age-dependent variation in the biophysical properties of boreal forests

    E-Print Network [OSTI]

    McMillan, Andrew M. S.; Goulden, M. L.

    2008-01-01

    for long term energy flux data sets. Agricultural and ForestBOREAL FOREST atmosphere exchange of both carbon and energy.forests account for a large portion of terrestrial biomass and their rates of mass and energy