Sample records for wake forest university

  1. CSC 343643 WAKE FOREST

    E-Print Network [OSTI]

    Fulp, Errin W.

    or cheapernet) 802.3b 1985 10BROAD36 802.3c 1985 10 Mbit/s (1.25 MB/s) repeater specs 802.3d 1987 Fiber Ethernet (1 and 10 Gbit/s (125 and 1,250 MB/s) over printed circuit boards) 802.3aq 2006 10GBASE-LRM 10 aggregation was moved to 802.1AX. 802.3az 2010 Energy Efficient Ethernet 802.3ba 2010 40 Gbit/s and 100 Gbit

  2. CSC 343643 WAKE FOREST

    E-Print Network [OSTI]

    Fulp, Errin W.

    /s) repeater specs 802.3d 1987 Fiber­optic inter­repeater link 802.3e 1987 1BASE5 or StarLAN 802.3i 1990 10BASE 2007 Backplane Ethernet (1 and 10 Gbit/s (125 and 1,250 MB/s) over printed circuit boards) 802.3aq 2006 and errata. Link aggregation was moved to 802.1AX. 802.3az 2010 Energy E#cient Ethernet 802.3ba 2010 40 Gbit

  3. This article was downloaded by: [the Bodleian Libraries of the University of Oxford] On: 24 September 2013, At: 05:47

    E-Print Network [OSTI]

    Malhi, Yadvinder

    Center for Energy, Environment, and Sustainability, Wake Forest University, North Carolina,, USA f School Sciences, Ume, Sweden d College of Life and Environmental Sciences, University of Exeter, Exeter, UK e

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

    E-Print Network [OSTI]

    Holzwarth, Natalie

    PON and related solid electrolytes " http://prb.aps.org/abstract/PRB/v81/i18/e184106 3. Xiao Xu and N. A. W vacancies and N or Si substitutions on Li+ migration in Li3PO4 electrolytes from first principles" http://link.aps.org/abstract/PRB+ diffusion in crystalline Li3PO4 electrolytes from first principles" http://link.aps.org/abstract/PRB/v76/e

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

    E-Print Network [OSTI]

    Schweik, Charles M.

    Department of Environmental Conservation, University of Massachusetts-Amherst Concentration in Forest Resources and Arboriculture 1 Environmental Conservation Graduate Program Forest Resources) and Doctor of Philosophy (PhD) degrees in Environmental Conservation (ECo) and is designed for students who

  6. Experimental investigation of a stratified buoyant wake

    E-Print Network [OSTI]

    Kraft, Wayne Neal

    2004-11-15T23:59:59.000Z

    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...

  7. University of Mississippi School of Medicine

    E-Print Network [OSTI]

    Raucher, Drazen

    of Mississippi Medical Center Jackson, MS Hayes Baker Internal Med University of Virginia Charlottesville, VA Hood Urology Wake Forest University School of Medicine Winston-Salem, NC Josh Hughes Neurosurgery Mayo Graduate School of Medicine Rochester, MN Joy Hughes Gen Surgery Mayo Graduate School of Medicine Rochester

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

    SciTech Connect (OSTI)

    Pendse, Hemant P.

    2010-11-23T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Makridis, Alexandros

    2012-06-25T23:59:59.000Z

    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 ...

  10. University of Alberta The potential of aspen clones and hybrids for enhanced forest management

    E-Print Network [OSTI]

    Hamann, Andreas

    University of Alberta The potential of aspen clones and hybrids for enhanced forest management be remembered. #12;Abstract This thesis presents results from an industrial aspen tree improvement program, advice, and support provided by the staff of the Western Boreal Aspen Corp was essential

  11. 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 jets and wakes Jimmy Philipa) and Ivan Marusicb) Department of Mechanical Engineering, University

  12. Uncompahgre Mesas Forest Restoration Project

    E-Print Network [OSTI]

    March 2010 Uncompahgre Mesas Forest Restoration Project Collaboration Case Study #12;Uncompahgre Mesas Forest Restoration Project 1 1 Colorado Forest Restoration Institute Collaboration Case Study at Colorado State University, to conduct case studies of two collaborative forest health efforts

  13. Woodland Park Healthy Forest Initiative

    E-Print Network [OSTI]

    March 2010 Woodland Park Healthy Forest Initiative Collaboration Case Study #12;Woodland Park Healthy Forest Initiative 1 1 Colorado Forest Restoration Institute Collaboration Case Study: Woodland at Colorado State University, to conduct case studies of two collaborative forest health efforts

  14. Observing the Multiverse with Cosmic Wakes

    E-Print Network [OSTI]

    Matthew Kleban; Thomas S. Levi; Kris Sigurdson

    2011-09-15T23:59:59.000Z

    Current theories of the origin of the Universe, including string theory, predict the existence of a multiverse containing many bubble universes. These bubble universes will generically collide, and collisions with ours produce cosmic wakes that enter our Hubble volume, appear as unusually symmetric disks in the cosmic microwave background (CMB) and disturb large scale structure (LSS). There is preliminary observational evidence consistent with one or more of these disturbances on our sky. However, other sources can produce similar features in the CMB temperature map and so additional signals are needed to verify their extra-universal origin. Here we find, for the first time, the detailed three-dimensional shape and CMB temperature and polarization signals of the cosmic wake of a bubble collision in the early universe consistent with current observations. The predicted polarization pattern has distinctive features that when correlated with the corresponding temperature pattern are a unique and striking signal of a bubble collision. These features represent the first verifiable prediction of the multiverse paradigm and might be detected by current experiments such as Planck and future CMB polarization missions. A detection of a bubble collision would confirm the existence of the Multiverse, provide compelling evidence for the string theory landscape, and sharpen our picture of the Universe and its origins.

  15. Iso-curvature fluctuations through axion trapping by cosmic string wakes

    E-Print Network [OSTI]

    Biswanath Layek

    2005-03-07T23:59:59.000Z

    We consider wake-like density fluctuations produced by cosmic strings at the quark-hadron transition in the early universe. We show that low momentum axions which are produced through the radiation from the axionic string at an earlier stage, may get trapped inside these wakes due to delayed hadronization in these overdense regions. As the interfaces, bordering the wakes, collapse, the axions pick-up momentum from the walls and finally leave the wake regions. These axions thus can produce large scale iso-curvature fluctuations. We have calculated the detailed profile of these axionic density fluctuations and discuss its astrophysical consequences.

  16. Modeling Materials: Comparison of Two Projector-Augmented Wave (PAW) Datasets A paper presented to the faculty of the Department of Physics of Wake Forest University in

    E-Print Network [OSTI]

    Holzwarth, Natalie

    of new technologies. A potential focus of this technology is in energy storage. The simulation of new.2 Software 2.2.1 ATOMPAW 2.2.2 ABINIT 2.2.3 WIEN2K 2.2.4 Brief Summary of Code Usage 2.2.5 Binding Energy in the beginning. Cameron Kates and myself worked together to update an online database of these atomic inputs. Our

  17. A Vision of the Future Michigan State University undertakes forest management on its properties

    E-Print Network [OSTI]

    ) 2-year-old aspen regeneration in a clearcut, (3) sugar maple seedlings wait for release, (4) high slowly. The first surveyors found that most of Neebish Island was covered by aspen-birch forests around. The forests are still primarily dominated by aspen and bir

  18. Stationary Solutions of the NavierStokes Equations in a HalfPlane DownStream of an Object: Universality of the Wake

    E-Print Network [OSTI]

    Stationary Solutions of the NavierStokes Equations in a HalfPlane DownStream of an Object in the down--stream direction, the leading order deviation from the constant flow is universal, i--Stokes equations can be interpreted as a dynamical system, the down--stream direction playing the role of time

  19. 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

  20. Selecting a Consulting Forester

    E-Print Network [OSTI]

    Taylor, Eric; Foster, C. Darwin

    2005-10-19T23:59:59.000Z

    ER-038 5-06 Selecting a Consulting Forester Eric L. Taylor, Extension Specialist, and C. Darwin Foster, Associate Department Head and Extension Program Leader for Forestry, The Texas A&M University System A consulting forester is an independent... forest management experience does the for- ester have and in what capacity? ? In what professional or forestry-related organizations is the forester an active member? Recognized professional organizations include the Association of Consulting...

  1. Swedish University of Agricultural Sciences 5 May 2010 Department of forest resource management

    E-Print Network [OSTI]

    and the master's program Environmental Monitoring and Assessment! Dear student, We are pleased to welcome you to the master's program Environmental Monitoring and Assessment, administered by the Faculty of Forest, please visit the following websites http://utbildning.slu.se/vara_utbildningar/Master- _och_magisterprogram/Environmental_Monitoring_and_Assessment

  2. aircraft wake vortex: Topics by E-print Network

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

    respectively 49 RESEARCH ARTICLE Dynamic wind loads and wake characteristics of a wind turbine Engineering Websites Summary: RESEARCH ARTICLE Dynamic wind loads and wake...

  3. Status of wake and array loss research

    SciTech Connect (OSTI)

    Elliott, D.L.

    1991-09-01T23:59:59.000Z

    In recent years, many projects have evaluated wind turbine wake effects and resultant array losses in both Europe and the United States. This paper examines the status of current knowledge about wake effects and array losses and suggests future research. Single-turbine wake characteristics have been studied extensively and are generally described well by existing theoretical models. Field measurements of wake effects in wind turbine arrays are largely limited to small arrays, with 2 to 4 rows of turbines. Few data have been published on wake effects within large arrays. Measurements of wake deficits downwind of large arrays that deficits are substantially larger and extend farther downwind than expected. Although array design models have been developed, these models have been tested and verified using only limited data from a few rows of wind turbines in complex terrain, whereas some of the largest arrays have more than 40 rows of wind turbines. Planned cooperative efforts with the wind industry will obtain existing data relevant to analyzing energy deficits within large arrays and identifying data sets for potential use in array model verification efforts. Future research being considered include a cooperative research experiment to obtain more definitive data on wake deficits and turbulence within and downwind of large arrays. 16 refs., 9 figs., 1 tab.

  4. Texas Fluid Dynamics Meeting, 2013 STABILITY OF ROTOR WAKES.

    E-Print Network [OSTI]

    Tinney, Charles E.

    to the presence of multiple helical fila- ments. Wakes of helicopter rotors, wind turbines and ma- rine propellers% confidence interval at wake ages, : 10 - 80. Dashed lines are separated by r /r = 3 in the wake of windTexas Fluid Dynamics Meeting, 2013 STABILITY OF ROTOR WAKES. Swathi M. Mula & Charles. E. Tinney

  5. Signs of Recovery for Colorado Forests in the Wake

    E-Print Network [OSTI]

    and quaking aspen are common in the understory of these study areas. In other locations, lodgepole pine-infested Stands Since 2008, lodgepole pine and subalpine fir seedlings and aspen sprouts have become established and aspen recruits were three times more abundant in harvested stands. Subalpine fir trees were the most

  6. 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane, Hawaii: EnergyWaipio,Waite Hill,

  7. 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin Baxin Hydropower StationTown of Skiatook,Springer,

  8. FOREST CENTRE STORAGE BUILDING

    E-Print Network [OSTI]

    deYoung, Brad

    FOREST CENTRE STORAGE BUILDING 3 4 5 6 7 8 UniversityDr. 2 1 G r e n f e l l D r i v e MULTI PURPOSE COURT STUDENT RESIDENCES GREEN HOUSE STUDENT RESIDENCES STUDENT RESIDENCES RECPLEX STORAGE BUILDING STORAGE BUILDING LIBRARY & COMPUTING FINE ARTS FOREST CENTRE ARTS &SCIENCE BUILDING ARTS &SCIENCE

  9. High Tonnage Forest Biomass Production Systems from Southern...

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

    Biomass Program Review High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations DE-EE0001036 S. Taylor (Auburn University), R. Rummer (USDA Forest...

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

    E-Print Network [OSTI]

    Pertuz Salas, Julio Alberto

    2014-01-01T23:59:59.000Z

    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 ...

  11. 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

  12. RadioTriggered WakeUp Capability for Sensor Networks Lin Gu and John A. Stankovic

    E-Print Network [OSTI]

    Stankovic, John A.

    of Computer Science, University of Virginia flingu, stankovicg@cs.virginia.edu Abstract Power management is an important technique to prolong the lifespan of sensor networks. Many powermanagement protocols employ wakeup/sleep schedules, which are often complicated and inefficient. We present power management schemes that eliminate

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

    E-Print Network [OSTI]

    such as ecosystem services, climate change, forest certification, and natural disturbances. It is expected) Good interpersonal and communication skills enabling collaboration with a broad spectrum of students

  14. Forest transitions and ecosystem services in Zimbabwe Supervisors: Dr Casey Ryan (UoE), Dr Isla Grundy (University of Zimbabwe)

    E-Print Network [OSTI]

    Forest transitions and ecosystem services in Zimbabwe Supervisors: Dr Casey Ryan (UoE), Dr Isla and a variety of other ecosystem services. However the expansion of agricultural land and the curing of tobacco is accelerating deforestation and forest degradation rates. These structural changes to the ecosystem threaten

  15. Dynamic wake meandering Gunner C. Larsen, Helge Aa. Madsen, Ferhat

    E-Print Network [OSTI]

    turbine loadings in wind farms. In its present version the model is confined to single wake situations. Larsen, and Robert Mikkelsen, Title: Dynamic wake meandering modeling Department: Wind Energy Department for the wake meandering phenomenon, which we consider of crucial importance for the overall description of wind

  16. Proceedings of the ARO Rotorcraft Wake Prediction Basic Research Workshop

    E-Print Network [OSTI]

    Wake Structure Of A Horizontal-Axis Wind Turbine 7 A.G. Brand BHTI The Nature Of Vortex Ring State 8 S Disk Model For Interacting Wind Turbine Wakes 15 R.B. Haehnel, Y. Wenren, J. Steinhoff USA CRREL, FProceedings of the ARO Rotorcraft Wake Prediction Basic Research Workshop Daniel Guggenheim School

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

    SciTech Connect (OSTI)

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

    2014-10-01T23:59:59.000Z

    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.

  18. Lead Grant Reference Lead Grant RO Grant Holder Last Name, First Name Project Title NE/K000071/1 Newcastle University Mr R Gaulton Dual-wavelength laser scanning for forest health

    E-Print Network [OSTI]

    Newcastle University Mr R Gaulton Dual-wavelength laser scanning for forest health monitoring. NE/K000381/1Lead Grant Reference Lead Grant RO Grant Holder Last Name, First Name Project Title NE/K000071/1 and sensory mechanisms in bat navigation NE/K000403/1 University of Southampton Dr S Watt Emplacement dynamics

  19. Probing Neutrino Hierarchy and Chirality via Wakes

    E-Print Network [OSTI]

    Hong-Ming Zhu; Ue-Li Pen; Xuelei Chen; Derek Inman

    2014-12-04T23:59:59.000Z

    The relic neutrinos are expected to acquire a bulk relative velocity with respect to the dark matter at low redshifts, and downstream of dark matter halos neutrino wakes are expected to develop. We propose a method of measuring the neutrino mass based on this mechanism. The neutrino wake will cause a dipole distortion of the galaxy-galaxy lensing pattern. This effect could be detected by combining upcoming lensing surveys, e.g. the LSST and Euclid surveys with a low redshift galaxy survey or a 21cm intensity mapping survey which can map the neutrino flow field. The data obtained with LSST and Euclid should enable us to make positive detection if the three neutrino masses are Quasi-Degenerate, and a future high precision 21cm lensing survey would allow the normal hierarchy and inverted hierarchy cases to be distinguished, and even the right handed Dirac neutrinos may be detectable.

  20. A Colorful Wake for Gerhard Soff

    E-Print Network [OSTI]

    Berndt Mller; Jrg Ruppert

    2005-07-18T23:59:59.000Z

    We calculate the wake induced in a hot QCD plasma by a fast parton in the framework of linear response theory. We discuss two scenarios: ($i$) a weakly coupled quark-gluon plasma described by hard-thermal loop perturbation theory and ($ii$) a strongly coupled quark-gluon plasma which resembles a quantum liquid. We show that a Mach cone can appear in the second scenario, but not in the first one

  1. SDPISustainable Development Policy Institute Pakistan Forest

    E-Print Network [OSTI]

    Richner, Heinz

    #12;SDPISustainable Development Policy Institute Quarterly Pakistan Forest Digest Vol. 01, No. 02 Development Policy Institute Pakistan Forest Digest ii Vol. 1, No. 2, July September 2010 Quarterly Pakistan Board Dr. Urs Geiser Zurich University, Switzerland Dr. Mamoona Wali Muhammad Pakistan Forest Institute

  2. Comparison of Design Loads for Turbines in Wake Torben J. Larsen, Helge Aa. Madsen, Gunner Larsen

    E-Print Network [OSTI]

    DWM model Wind turbine wake velocity deficit wake meandering aeroelastic simulations wake addedComparison of Design Loads for Turbines in Wake Torben J. Larsen, Helge Aa. Madsen, Gunner Larsen, the meandering path, and added wake turbulence for as many neigbouring turbines as desired. A study

  3. 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

  4. Sandia Energy - Measuring Inflow and Wake Flow Turbulence Using...

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

    that characterizes inflow and wake flow velocity and turbulence around a vertical axis turbine deployed at the Roza Canal, Yakima, Washington. The ADV was mounted on a...

  5. Thermal wake/vessel detection technique

    DOE Patents [OSTI]

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

    2012-01-10T23:59:59.000Z

    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.

  6. Geometrical Wake of a Smooth Flat Collimator

    SciTech Connect (OSTI)

    Stupakov, G.V.; /SLAC

    2011-09-09T23:59:59.000Z

    A transverse geometrical wake generated by a beam passing through a smooth flat collimator with a gradually varying gap between the upper and lower walls is considered. Based on generalization of the approach recently developed for a smooth circular taper we reduce the electromagnetic problem of the impedance calculation to the solution of two much simpler static problems - a magnetostatic and an electrostatic ones. The solution shows that in the limit of not very large frequencies, the impedance increases with the ratio h/d where h is the width and d is the distance between the collimating jaws. Numerical results are presented for the NLC Post Linac collimator.

  7. 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home DistributionTransportation Safety Home StationaryUpperWake Imaging

  8. Wake Electric Membership Corp | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin BaxinUmweltVillageGraph Home Wzeng'sVortexWagoner PublicWake Electric

  9. Coupled wake boundary layer model of wind-farms

    E-Print Network [OSTI]

    Stevens, Richard J A M; Meneveau, Charles

    2014-01-01T23:59:59.000Z

    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...

  10. 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

  11. Wake potentials of the ILC Interaction Region

    SciTech Connect (OSTI)

    Novokhatski, A.; /SLAC

    2011-08-16T23:59:59.000Z

    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.

  12. Transitions in the wake of a flapping foil

    E-Print Network [OSTI]

    Godoy-Diana, R; Wesfreid, J E; Aider, Jean-Luc; Godoy-Diana, Ramiro; Wesfreid, Jos\\'e Eduardo

    2007-01-01T23:59:59.000Z

    We study experimentally the vortex streets produced by a flapping foil in a hydrodynamic tunnel, using 2D Particle Image Velocimetry (PIV). A novel analysis in terms of a flapping frequency-amplitude phase space allows to identify: 1) the transition from the well-known Benard-von Karman (BvK) wake to the reverse BvK vortex street that characterizes propulsive wakes, and 2) the symmetry breaking of this reverse BvK pattern giving rise to an asymmetric wake. We also show that the transition from a BvK wake to a reverse BvK wake precedes the actual drag-thrust transition and we discuss the significance of the present results in the analysis of flapping systems in nature.

  13. Department of Forest and Wood Science Academic Programmes for 2014

    E-Print Network [OSTI]

    Geldenhuys, Jaco

    ; harvesting and supply; biomass conversion; energy production; marketing of bio-energy; economicsDepartment of Forest and Wood Science Academic Programmes for 2014 Postgraduate Diploma Enquiries: Head of Department Contact details: Department of Forest and Wood Science Stellenbosch University

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

    E-Print Network [OSTI]

    Daraio, Chiara

    Wake models are used to improve predictions of Annual Energy Production (AEP) of wind farms. Wake measurements in the ETHZ facility compare well with measurements at the Horns Rev offshore wind farm models take account of the effects of wakes on downstream wind turbines. Wake models used in the wind

  15. Wave force coefficient correlation based on wake volume scaling

    SciTech Connect (OSTI)

    Horton, T.E.; Feifarek, M.J.; Golestanian, H. (Univ. of Mississippi, Oxford, MS (United States). School of Engineering)

    1994-05-01T23:59:59.000Z

    A correlation of the hydrodynamic drag force on a cylinder for a periodic motion is demonstrated. The correlation indicates the dependence of the unsteady flow drag coefficient on the wake volume parameter. This parameter is a measure of the volume of flow through the boundary layer and into the wake in a half-cycle. For a laminar boundary layer, this dimensionless parameter is proportional to the Keulegan-Carpenter number and inversely proportional to the square root of the Reynolds number. Using wake volume scaling, drag coefficients were effectively collapsed into a single curve.

  16. Partitioning of energy in the wake of Hurricane Allen

    E-Print Network [OSTI]

    Eble, Marie Cecilia

    1984-01-01T23:59:59.000Z

    of a two-layer ocean to a hurricane translating with constant speed. He found the baroclinic response to consist of both a pattern of upwelling and an inertio-gravity wave in the wake of the storm. He found the wake response to be highly dependent... on the storm's translation speed, with the greatest response occurring for a storm speed much larger than the baroclinic long wave speed. Once dispersion of the wake occurred, a geostrophically-balanced ridge was found to remain in the interface height...

  17. Spatio-temporal spectral analysis of a forced cylinder wake

    E-Print Network [OSTI]

    D'Adamo, Juan; Wesfreid, Jos Eduardo

    2011-01-01T23:59:59.000Z

    The wake of a circular cylinder performing rotary oscillations is studied using hydrodynamic tunnel experiments at $Re=100$. Two-dimensional particle image velocimetry on the mid-plane perpendicular to the axis of cylinder is used to characterize the spatial development of the flow and its stability properties. The lock-in phenomenon that determines the boundaries between regions of the forcing parameter space were the wake is globally unstable or convectively unstable is scrutinized using the experimental data. A novel method based on the analysis of power density spectra of the flow allows us to give a detailed description of the forced wake, shedding light on the energy distribution in the different frequency components and in particular on a cascade-like mechanism evidenced for a high amplitude of the forcing oscillation. In addition, a calculation of the drag from the velocity field is performed, allowing us to relate the resulting force on the body to the wake properties.

  18. Intergrain forces in low-Mach-number plasma wakes

    E-Print Network [OSTI]

    Hutchinson, Ian H.

    Large-scale particle-in-cell calculations of the plasma wake interactions of two negatively charged grains smaller than the Debye length are carried out using the coptic code over a wide range of subsonic plasma flow ...

  19. array wake losses: Topics by E-print Network

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

    15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 UZOL & CAMCI1 ENDWALL HEAT TRANSFER, TOTAL PRESSURE LOSS AND WAKE FLOW FIELD Engineering Websites Summary: . The...

  20. Sandia National Laboratories: how wind-turbine wakes interact...

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

    Renewable Energy, SWIFT, Wind Energy One of the primary roles of Sandia's Scaled Wind Farm Technology (SWiFT) facility will be to conduct detailed experiments on turbine wakes...

  1. Molecular quantum wakes in the hydrodynamic plasma waveguide in air

    SciTech Connect (OSTI)

    Wu Jian; Cai Hua; Zeng Heping [State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062 (China); Milchberg, H. M. [Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742 (United States)

    2010-10-15T23:59:59.000Z

    We demonstrate a modulated plasma guiding effect from the molecular alignment wakes in the hydrodynamic plasma waveguide. A properly time-delayed laser pulse can be spatially confined by the hydrodynamic expansion induced plasma waveguide of an advancing femtosecond laser pulse. The spatial confinement can be further strengthened or weakened by following the quantum wakes of the impulsively excited rotational wave packets of the molecules in the plasma waveguide.

  2. 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

  3. 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

  4. 1 Edoardo Airoldi Harvard University 2 Mark Alber University of Notre Dame

    E-Print Network [OSTI]

    Levy, Doron

    University 31 Rong Chen Rutgers University 32 Duan Chen Michigan State University 33 Zhan Chen Michigan state Mary Ann Horn National Science Foundation 75 Langhua Hu Michigan state university 76 He Huang Purdue1 Edoardo Airoldi Harvard University 2 Mark Alber University of Notre Dame 3 Edward Allen Wake

  5. 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 process and the Brownian CRT. Edward Crane (HIMR, UoB) Forest fires, explosions, and random trees 13th

  6. Simulating the Future Forested Landscapes of the Oregon

    E-Print Network [OSTI]

    University June 10, 2002 #12;Technical Assistance Jonathan Brooks, GIS #12;Technical Assistance Marie 2500000 3000000 3500000 5 20 50 80 100 Years Acres Forest Industry - Losses to Urban & Rural Resid. Forest Industry - Remaining Wildland Forest Non-Industrial Private - Losses to Urban & Rural Resid. Non

  7. acidified forested catchment: Topics by E-print Network

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

    forest management systems, and fora for collaborative planning. Keywords Economic sustainability Vermont, University of 6 Long-term changes in precipitation and stream water...

  8. "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

  9. 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 ...

  10. Forest Resources and Management

    E-Print Network [OSTI]

    Forest Resources and Management Centre for The Centre for Forest Resources and Management aims the forest resource. Our aim is that British forests from their creation to maturity and regeneration-energy development, forest resource forecasting, genetic improvement, woodland regeneration and creation, management

  11. Plasma environment in the wake of Titan from hybrid simulation: A case study

    E-Print Network [OSTI]

    Gurnett, Donald A.

    Plasma environment in the wake of Titan from hybrid simulation: A case study R. Modolo,1 G. M] On 26 December 2005, the Cassini spacecraft flew through Titan's plasma wake and revealed a complex position of the wake. Two distinct plasma regions are identified with a significant difference

  12. Thesis topic: "Characterisation of wake tracking procedures by means of numerical simulation" (Bachelor or master )

    E-Print Network [OSTI]

    Peinke, Joachim

    and finally methods of aeroelastic simulation of wind turbines in wake. Scope The proposed work aims.jose.trujillo@uni-oldenburg.de Fig. Near wake path of an offshore wind turbine estimatied by means of wake tracking #12; of fluid dynamics and wind turbine aerodynamics - Numerical analysis - Programming skills in a scripting

  13. Wake modeling and simulation Gunner C. Larsen, Helge Aa. Madsen, Torben J.

    E-Print Network [OSTI]

    turbine loadings in wind farms. In its present version the model is confined to single wake situations. Larsen, and Niels Troldborg Title: Wake modeling and simulation Department: Wind Energy Division Ris for the wake meandering phenomenon, which we consider of crucial importance for the overall description of wind

  14. 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

  15. 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

  16. Large-eddy simulation of a wind turbine wake in turbulent

    E-Print Network [OSTI]

    Firestone, Jeremy

    Large-eddy simulation of a wind turbine wake in turbulent neutral shear flow Shengbai Xie, Cristina-similar velocity profile existing in the wake after a wind turbine? How does the wake influence the vertical? Motivation #12; Large-eddy simulation for turbulent flow field Actuator-line model for wind turbine ui

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

    E-Print Network [OSTI]

    Paris-Sud XI, Universit 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

  18. Satellite-derived estimates of forest leaf area index in southwest Western Australia are not tightly coupled to

    E-Print Network [OSTI]

    Montana, University of

    Satellite-derived estimates of forest leaf area index in southwest Western Australia Engineering, University of Western Australia, Nedlands, WA 6009, Australia, Department of Forest Ecosystems and Environment, University of Western Australia, Nedlands, WA 6009, Australia, Numerical Terradynamics

  19. The Chelyabinsk Meteor: A Cosmic Wake-up Call?

    E-Print Network [OSTI]

    Robeson, Scott M.

    The Chelyabinsk Meteor: A Cosmic Wake-up Call? Monday, Oct. 14, 8:00 PM Rawles Hall The Inaugural F, the shock wave reached the ground in Chelyabinsk Russia, breaking windows and injuring about 1500 people from flying glass. The Chelyabinsk impactor was smaller

  20. RESEARCH ARTICLE Wake development in staggered short cylinder arrays

    E-Print Network [OSTI]

    Thole, Karen A.

    edge of gas turbine airfoils. This study investigates the near wake flow as it develops through arrays Dh Duct hydraulic diameter Euu One-dimensional energy spectrum of streamwise velocity f Frequency H. Heat exchangers used in cooling gas turbine airfoils feature pinfin arrays constrained by two solid

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

    SciTech Connect (OSTI)

    Churchfield, M. J.

    2013-08-01T23:59:59.000Z

    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.

  2. Towards a Simplified Dynamic Wake Model using POD Analysis

    E-Print Network [OSTI]

    Bastine, David; Wchter, Matthias; Peinke, Joachim

    2014-01-01T23:59:59.000Z

    We apply the proper orthogonal decomposition (POD) to large eddy simulation data of a wind turbine wake in a turbulent atmospheric boundary layer. The turbine is modeled as an actuator disk. Our analyis mainly focuses on the question whether POD could be a useful tool to develop a simplified dynamic wake model. The extracted POD modes are used to obtain approximate descriptions of the velocity field. To assess the quality of these POD reconstructions, we define simple measures which are believed to be relevant for a sequential turbine in the wake such as the energy flux through a disk in the wake. It is shown that only a few modes are necessary to capture basic dynamical aspects of these measures even though only a small part of the turbulent kinetic energy is restored. Furthermore, we show that the importance of the individual modes depends on the measure chosen. Therefore, the optimal choice of modes for a possible model could in principle depend on the application of interest. We additionally present a pos...

  3. Non-linear Plasma Wake Growth of Electron Holes

    E-Print Network [OSTI]

    Hutchinson, I H; Zhou, C

    2015-01-01T23:59:59.000Z

    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...

  4. Forest Conservation Act (Maryland)

    Broader source: Energy.gov [DOE]

    The main purpose of Maryland's Forest Conservation Act is to minimize the loss of Maryland's forest resources during land development by making the identification and protection of forests and...

  5. 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...

  6. 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...

  7. harvard university financial report

    E-Print Network [OSTI]

    portfolio earned an invest- ment return of 11.0% and had a year-end value of $27.6 billion. In the wake the president 3 financial overview 8 message from the ceo of harvard management company 14 report of independent;3 harvarduniversityfinancialoverview In its fiscal year ended June 30, 2010, the University made significant progress in managing

  8. Statewide Forest Resource Strategy

    E-Print Network [OSTI]

    Resource Assessment (assessment). The assessment and strategy identify important forest lands and provideColorado Statewide Forest Resource Strategy #12;June 2010 Acknowledgments The Colorado State Forest Forest Resource Strategy. We also offer our thanks and acknowledgement to Greg Sundstrom, assistant staff

  9. WAKE FOREST U N I V E R S I T Y

    E-Print Network [OSTI]

    Fulp, Errin W.

    in 1999, which involved NATO and Serbia Largely an air campaign from NATO's perspective NATO claimed." " However Serbia used several deception techniques... E. W. Fulp CSC 790 Spring 2014 3 #12;Serbian Deception for any attack Passive and active techniques to gather information 70% time/energy devoted

  10. WAKE FOREST U N I V E R S I T Y

    E-Print Network [OSTI]

    Fulp, Errin W.

    in 1999, which involved NATO and Serbia -- Largely an air campaign from NATO's perspective . NATO claimed.'' '' . However Serbia used several deception techniques... E. W. Fulp CSC 790 Spring 2014 3 #12; Serbian to gather information -- 70% time/energy devoted to this stage --

  11. MONITORING AND HABITAT ANALYSIS FOR WOLVES IN UPPER MARCEL J. POTVIN,1 School of Forest Resources and Environmental Science Michigan Technological University, Houghton, MI

    E-Print Network [OSTI]

    Resources and Environmental Science Michigan Technological University, Houghton, MI 49931, USA THOMAS D. DRUMMER, Department of Mathematical Sciences, Michigan Technological University, Houghton, MI 49931, USA University, Houghton, MI 49931, USA DEAN E. BEYER, JR., Michigan Department of Natural Resources, Marquette

  12. Beyond the Betz Theory - Blockage, Wake Mixing and Turbulence

    E-Print Network [OSTI]

    Nishino, Takafumi

    2013-01-01T23:59:59.000Z

    Recent analytical models concerning the limiting efficiency of marine hydrokinetic (MHK) devices are reviewed with an emphasis on the significance of blockages (of local as well as global flow passages) and wake mixing. Also discussed is the efficiency of power generation from fully developed turbulent open channel flows. These issues are primarily concerned with the design/optimization of tidal turbine arrays; however, some of them are relevant to wind turbines as well.

  13. 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

  14. An experimental investigation of a tilt rotor aircraft wake in ground effect

    E-Print Network [OSTI]

    Frey, Michael Louis

    1982-01-01T23:59:59.000Z

    were taken at several disk loadings and various model to ground plane distances. The data collected was used to evaluate the horizontal wake component's effect on people by re- lating the experimental velocity profiles to an equivalent uniform... Flow Measurement Equipment. Wake Velocity Versus Distance from Tilt Rotor Wake Velocity Versus Disk Loading Tuft Flow Visualization ? H=3D, 3, 000 RPM Tuft Flow Visualization ? H=2D, 9, 000 RPM Flow Direction Measurement Results ? H=1D 14 20 22...

  15. SciTech Connect: Comparison of the Dynamic Wake Meandering Model...

    Office of Scientific and Technical Information (OSTI)

    Technologies Office Country of Publication: United States Language: English Subject: 17 WIND ENERGY WIND PLANT AERODYNAMICS; DYNAMIC WAKE MEANDERING; LARGE-EDDY SIMULATION; Wind...

  16. Regulatory Reform in the Wake of the Financial Crisis of 20072008

    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.

  17. Forest Inventory and Analysis Research The Nation's Forest Census

    E-Print Network [OSTI]

    Forest Inventory and Analysis Research F I A The Nation's Forest Census The U.S. Forest Inventory Monitoring Symposium November 4, 2008 #12;Forest Inventory and Analysis Research F I A The Nation's Forest Census FIA Program Perspectives · Only comprehensive forest inventory for each of the 50 States, Puerto

  18. IS FORESTRY RIGHT FOR Do you care about forests,

    E-Print Network [OSTI]

    Northern British Columbia, University of

    IS FORESTRY RIGHT FOR YOU? · Do you care about forests, wildlife, water, wilderness interest in the future of forestry? · Do you feel there should be changes made to forest practices? · Do on the Forestry Program call or write: Ecosystem Science and Management University of Northern British Columbia

  19. 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

  20. Chesapeake Forest Lands (Maryland)

    Broader source: Energy.gov [DOE]

    The Chesapeake Forest Lands are most of the former land holdings of the Chesapeake Forest Products Company, which now includes more than 66,000 acres in five lower Eastern Shore counties. These...

  1. Protecting climate with forests.

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    Changing feedbacks in the climatebiosphere system Front.31332 Bonan G B 2008 Forests and climate change: forcings,feedbacks, and the climate benefits of forests Science

  2. Note on Structure Formation from Cosmic String Wakes

    E-Print Network [OSTI]

    Duplessis, Francis

    2013-01-01T23:59:59.000Z

    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.

  3. 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri Global EnergyUtilityInformation Waiver of Preferential Right toWake

  4. Profile for Wanyi Nie

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

    fullerene blend with the aid of nanostructures and the influence towards optoelectronic device performance Education Ph.D., Department of Physics, Wake Forest University, 2012...

  5. Forest Lifeautumn | winter 2004 the forest!

    E-Print Network [OSTI]

    valley, near the spectacular Cornish coast Outdoor delights on your doorstep Come to the heart of Britain, rivers and streams, dramatic mountains, deep valleys and peaceful forest glades - they're all of exciting news, events, information and a great competition. Happy reading! In this issue of Forest Life we

  6. International Conference MANAGING FORESTS

    E-Print Network [OSTI]

    Working Party 1.01.08 ­ Ecology and Silviculture of Spruces; co-hosted by the EU Interreg Project Forest of Alberta, Canada "Ecology and Silviculture of White Spruce in the Canadian Boreal Forest for Multiple Forest Integrity; Why Spruce is a Good Option" Kristina Blennow, SLU, Sweden "Perception of Risks

  7. FOREST CERTIFICATION January 2008

    E-Print Network [OSTI]

    lead to a more efficient model to achieve and document high levels of forest stewardship by Oregon comes from well-managed forests. For wood products companies that do business with the likes of Home by the State of Oregon to be less competent or protective of forest resources than those landowners who become

  8. Forest ecology Introduction

    E-Print Network [OSTI]

    Johnson, Edward A.

    Forest ecology Introduction Forest ecology is a part of ecology that is con- cerned with forests as opposed to grasslands, savan- nas, or tundra. Ecology is the study of the processes of interaction among organisms and between organ- isms and their environment. Ecology is often subdi- vided into physiological

  9. 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

  10. Review: Michigans State Forests: A Century of Stewardship by William B. Botti and Michael D. Moore

    E-Print Network [OSTI]

    Hamilton-Smith, Elery

    2008-01-01T23:59:59.000Z

    Review: Michigans State Forests: A Century of StewardshipB. and Moore, Michael D. Michigans State Forests: A Centuryof Stewardship. Michigan State University Press, East

  11. TESLA Report 2003-19 THE SHORT-RANGE TRANSVERSE WAKE

    E-Print Network [OSTI]

    TESLA Report 2003-19 THE SHORT-RANGE TRANSVERSE WAKE FUNCTION FOR TESLA ACCELERATING STRUCTURE T of a Free Electron Laser in TESLA project requires very short bunches. It results in a very long interaction calculate the short-range transverse wakefields of the TESLA linac accelerating structure. Wake fields

  12. Journal of Fluids and Structures 25 (2009) 654665 Physics of temporal forcing in wakes

    E-Print Network [OSTI]

    Wesfreid, Jos Eduardo

    2009-01-01T23:59:59.000Z

    . Keywords: Global instability; Forced wake; Mean flow correction 1. Introduction The wake of a cylinder is one of the most well-known cases of hydrodynamical instability studies in open flows. The phenomenon properties (drag, pressure, global mode characteristics, etc.) have been covered by a large literature

  13. EEG alpha power and alpha power asymmetry in sleep and wakefulness

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    EEG alpha power and alpha power asymmetry in sleep and wakefulness RUTH M. BENCA,a,b WILLIAM H--Madison, USA Abstract Asymmetry of waking electroencephalography ~EEG! alpha power in frontal regions has been regarding alpha asymmetry during sleep. The present study was performed to compare alpha power and alpha

  14. On the power required to control the circular cylinder wake by rotary oscillations

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    On the power required to control the circular cylinder wake by rotary oscillations Michel Bergmann Communication, we determine an approximate relation which gives the mean time power required to control the wake on whole or part of the cylinder surface. The mean control power thus depends on four parameters

  15. ROTORCRAFT WAKE MODELING: PAST, PRESENT AND Narayanan Komerath Marilyn J. Smith

    E-Print Network [OSTI]

    extension of this re- search is in the field of sustainable energy, particularly wind turbine design and analysis. The knowledge and accurate convection and dissipation of individual wakes in wind farmsROTORCRAFT WAKE MODELING: PAST, PRESENT AND FUTURE Narayanan Komerath Marilyn J. Smith Professor

  16. 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

  17. Particle Beam Stability in the Hollow Plasma Channel Wake Field Accelerator

    E-Print Network [OSTI]

    Wurtele, Jonathan

    Particle Beam Stability in the Hollow Plasma Channel Wake Field Accelerator Carl B. Schroeder1 structure is the transverse instability of the particle beam. INTRODUCTION Plasma-based accelerators have. The electromagnetic wake field response of a hollow plasma channel to a driver (laser or charged particle beam

  18. Experimental and Numerical Investigations on the Asymmetric Wake Vortex Structures around an Oscillating Airfoil

    E-Print Network [OSTI]

    Hu, Hui

    of the reverse von Karman vortex street behind the flapping wing. However, it is challenging to fully understandExperimental and Numerical Investigations on the Asymmetric Wake Vortex Structures around of the vortex pair becomes more apparent, which is considered to be a vital element to form the asymmetric wake

  19. Inertial Particle Dispersion in the Lagrangian Wake of a Square Cylinder

    E-Print Network [OSTI]

    Jacobs, Gustaaf "Guus"

    in Fluent at a Reynolds number of 150 ensuring a periodic Karman street in the cylinder's wake. The traces, inertial particle transport and entrainment in the vortex-dominated wake of a square cylinder placed between large coherent vortex structures. With increased blockage, transport barriers form of the walls

  20. alaskan boreal forests: Topics by E-print Network

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

    Pulido (*) Forest Research Group, School of Forestry, University of Extremadura, Avenida Virgen del Puerto 2, Plasencia E-10600, Spain e-mail: nando@unex.es J. J Paris-Sud XI,...

  1. alaskan boreal forest: Topics by E-print Network

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

    Pulido (*) Forest Research Group, School of Forestry, University of Extremadura, Avenida Virgen del Puerto 2, Plasencia E-10600, Spain e-mail: nando@unex.es J. J Paris-Sud XI,...

  2. 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

    2006-05-29T23:59:59.000Z

    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.

  3. The Anisotropic Multifractal Model and Wind Turbine Wakes G. Fitton1, I. Tchiguirinskaia1, D. Schertzer1 & S. Lovejoy2

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    The Anisotropic Multifractal Model and Wind Turbine Wakes G. Fitton1, I. Tchiguirinskaia1, D. Figure 1: Schematic of turbine positions and wake effect due to North-Westerly winds (map courtesy on a mast in a wind farm test site subject to wake turbulence effects (see Fig. 1). The quality of the data

  4. Graduate Programs Auburn University

    E-Print Network [OSTI]

    Forestry Graduate Programs Auburn University Auburn University, Alabama 368495414 Programs://www.forestry.auburn.edu/graduate/ University of California, Berkeley Berkeley, California 947203114 Program: Forestry http://espm.berkeley.edu/gradprograms/grad_programs_mf.html Clemson University Clemson, South Carolina 29634 Program: Forest Resources http

  5. Soil-site relationships to photodelineated forest types

    E-Print Network [OSTI]

    King, Dale Robert

    1975-01-01T23:59:59.000Z

    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...

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

    SciTech Connect (OSTI)

    Pollock, B

    2012-03-19T23:59:59.000Z

    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.

  7. Appendix 33 Forest Resources of the Flathead National Forest

    E-Print Network [OSTI]

    , ponderosa pine, and aspen forest types also occur. #12;2 Figure 3--Area by forest type and habitat type Grand fir Aspen Ponderosa pine Forest type refers to the predominant tree species in a stand, based

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

    E-Print Network [OSTI]

    ) - Implications and challenges of decentralized China's collective forest management Heng Sok (National Forest:00-10:30 Moderator: Heng Sok (Forestry Administration, Cambodia) Session: Forests and the market for timber products

  9. COAXIAL TWO-CHANNEL DIELECTRIC WAKE FIELD ACCELERATOR

    SciTech Connect (OSTI)

    Hirshfield, Jay L. [Omega-P, Inc.

    2013-04-30T23:59:59.000Z

    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.

  10. Experiments on the vortex wake of a swimming knifefish

    E-Print Network [OSTI]

    Taylor, Zachary J; Gurka, Roi; Holzman, Roi; Reesbeck, Thomas; Diez, F Javier

    2012-01-01T23:59:59.000Z

    The knifefish species propels itself by generating a reverse Karman street from an anal fin and without significantly moving its body. This unique feature makes this species' propulsion method highly efficient (Blake, 1983). It has been suggested that there is an optimal swimming range for fish based on the amplitude and frequency of the reverse K\\'arm\\'an street. Experiments have been performed to measure the ratio between the amplitude and wavelength of vortices in the wake of a knifefish. It is suggested that by optimizing the thrust created by the reverse Karman street the wave efficiency can be estimated for a given spacing ratio, and present observations have an average value of 0.89. The relationship established between spacing ratio and wave efficiency, in addition to the measured parameters, will be invaluable for bio-inspired designs based on the knifefish.

  11. Wake structure measurements at the Mod-2 cluster test facility at Goodnoe Hills

    SciTech Connect (OSTI)

    Lissaman, P.B.S.; Zambrano, T.G.; Gyatt, G.W.

    1983-03-01T23:59:59.000Z

    A field measurement progam was carried out at the cluster of three MOD-2 wind turbines located at Goodnoe Hills, Washington, to determine the rate of decay of wake velocity deficit with downwind distance in various meteorological conditions. Measurements were taken at hub height (200 ft) between July 12 and August 1, 1982. Wake wind speeds were measured using a radiosonde suspended from a tethered balloon, its position being determined from a grid of ground stakes. Measurments were also made downwind with the turbine off to determine the magnitude of terrain-induced variations in wind speed. The balloon system used to measure downstream wind data proved to be reliable and convenient. Downstream distances of 900, 1500, 2100, and 2700 ft from the turbine were investigated. Differences between the instrumentation systems required that corrections be made to the data. After correction, averaged terrain-induced wind speed variations were regarded as insignificant. Turbine-on velocity ratios showed scatter, suggesting that only some measurements were, in fact, representative of wake centerline velocities, and that others were made off centerline due to wake meander or wind shift. Isolation of the high wind speed (30 to 45 mph) velocity ratios, however, revealed velocity deficits downstream. Measurements at greater downstream distances showed no wake deficit within the limits of resolution of the experiment, indicating that the wake had recovered to free stream conditions. Comparison with the AeroVironment wake model using common values for rotor drag coefficient and turbulence showed similar trends.

  12. Colorado Statewide Forest Resource Assessment

    E-Print Network [OSTI]

    Colorado Statewide Forest Resource Assessment A Foundation for Strategic Discussion and Private Forestry Redesign Initiative 2 National Guidance for Statewide Forest Resource Assessments 4 The Colorado Statewide Resource Assessment and all appendices are available online on the Colorado State Forest

  13. Foothills Model Forest Business Strategy

    E-Print Network [OSTI]

    Foothills Model Forest Business Strategy 2007 ­ 2012 November 2006 #12;Page ii TABLE OF CONTENTS FOOTHILLS MODEL FOREST Business Strategy for April 2007 to March 2012 1.0 INTRODUCTION....................................................................................................................... 4 2.4 Foothills Model Forest Values

  14. Forest Road Building Regulations

    Broader source: Energy.gov [DOE]

    The Wisconsin Department of Natural Resources has regulations for building a forest road, if development requires one. Regulations include zoning ordinances and permits for stream crossing, grading...

  15. Opportunities for Future Forest

    E-Print Network [OSTI]

    .V.Birnie * Forest Research 1 #12;This document has been prepared in accordance with the requirements of the ISO 9001

  16. Forest restitution and protected area effectiveness in post-socialist Romania Jan Knorn a,

    E-Print Network [OSTI]

    Radeloff, Volker C.

    Forest restitution and protected area effectiveness in post-socialist Romania Jan Knorn a, , Tobias, University of Suceava, 13 Universitat?ii Sreet, Suceava 720229, Romania e Rubenstein School of Environment of Silviculture and Forest Engineering, Transilvania University, Sirul Beethoven 1, 500123 Brasov, Romania g

  17. Far Wake Rotorcraft Vortex Tumbling James H. Stephenson

    E-Print Network [OSTI]

    Tinney, Charles E.

    , Jayant Sirohi Department of Aerospace Engineering and Engineering Mechanics The University of Texas

  18. Estimating integrated information with TMS pulses during wakefulness, sleep, and under anesthesia

    E-Print Network [OSTI]

    Estimating integrated information with TMS pulses during wakefulness, sleep, and under anesthesia anesthesia. We show that bistability, arising at the cellular and population level during NREM sleep and under anesthesia, dramatically reduces the brain's ability to integrate information. I. INTRODUCTION

  19. Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits

    E-Print Network [OSTI]

    Modarres-Sadeghi, Yahya

    We identify a dominant mechanism in the interaction between a slender flexible structure undergoing free vibrations in sheared cross-flow and the vortices forming in its wake: energy is transferred from the fluid to the ...

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

    E-Print Network [OSTI]

    Smith, Jamie Brooke

    2006-08-16T23:59:59.000Z

    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 ...

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

    E-Print Network [OSTI]

    Nolan, Sean Patrick Rock

    2009-01-01T23:59:59.000Z

    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 ...

  2. Wake II model for hydrodynamic forces on marine pipelines for the wave plus current case

    E-Print Network [OSTI]

    Ramirez Sabag, Said

    1999-01-01T23:59:59.000Z

    . Kostas Lambrakos, for their time and advice relating the Wake II model, necessary for the success in completing this research. I am grateful to the Instituto Mexicano del Petroleo (Mexican Institute of Petroleum) for its support during all my graduate...

  3. PACIFIC SOUTHWEST FOREST SERVICE

    E-Print Network [OSTI]

    Standiford, Richard B.

    1976 . Disturbance during logging stimulates re- generation of koa. USDA Forest Servo Res. Note PSW-306 and distribution of Acacia koa re- genera tion after logging were studied on a 500-acre (202-ha) tract of koa forest heavily infested with Passi- /1ora mol/issima vines on the island of Hawaii. Koa seedling density

  4. Forests and historic environment

    E-Print Network [OSTI]

    Forests and historic environment UK Forestry Standard Guidelines #12;Key to symbols UKFS Reference number #12;Forests and historic environment Forestry Commission: Edinburgh UK Forestry Standard in any format or medium, under the terms of the Open Government Licence. To view this licence, visit: www

  5. Tongass National Forest

    SciTech Connect (OSTI)

    Not Available

    1990-03-01T23:59:59.000Z

    Two long-term timber contracts in the Tongass National Forest require private companies to harvest prescribed amounts of timber within agreed upon time frames during the 50-year contract life. This report has reviewed the accuracy of Forest Service figures for the volume of timber actually harvested under the two contracts, timber deleted from the private companies' operating plans, and backlogged timber. The author was unable to verify the first two figures because the Forest Service had not complied with all of its internal controls and because documentation and records were incomplete. The author was able to verify the figure for backlogged timber. While the Forest Service has tried to better account for timber prepared for harvesting through improved internal controls, this report believes additional actions are needed to ensure that forest supervisors comply with the internal controls for documenting harvested timber volumes and the information needed to support and report changes in timber sale activities is accurately reported.

  6. Challenges in elevated CO2 experiments on forests

    E-Print Network [OSTI]

    , Bangor, UK 8 Queens College, City University of New York, NY, USA 9 Lund University, Lund, Sweden 10 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

  7. 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

  8. Quantifying forested stands with the pulsed airborne laser profiler

    E-Print Network [OSTI]

    Whatley, Michael Craig

    1986-01-01T23:59:59.000Z

    ) red H. Smeins (Member) Peter T Sprinz (Member) J ~ (Head aries Lee f Departmen ) May 1986 ABSTRACT Quantifying Forested Stands with the Pulsed Airborne Laser Profiler. (May 1986) Michael Craig Whatley, B. S. , Texas A&M University...; Chairman of Advisory Committee: Dr. Robert C. Maggio The use of airborne laser technology to enumerate forested stands was explored. A ground-based simulation laser, mimicing the pulsed airborne laser profiler (PALP) was used to quantify the PALP...

  9. 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

    2012-01-25T23:59:59.000Z

    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

  10. Downstream asymptotics in exterior domains: from stationary wakes to time periodic flows

    E-Print Network [OSTI]

    G. van Baalen

    2004-11-04T23:59:59.000Z

    We consider the time-dependent Navier-Stokes equations in a half-space with boundary data on the line $(x,y)=(x_0,y)$ assumed to be time-periodic (or stationary) with a fixed asymptotic velocity ${\\bf u}_{\\infty}=(1,0)$ at infinity. We show that there exist (locally) unique solutions for all data satisfying a compatibility condition in a certain class of fuctions. Furthermore, we prove that asymptotically the vorticity decompose itself in a dominant stationary part on the parabolic scale $y\\sim\\sqrt{x}$ and corrections of order $x^{-{3/2}+\\epsilon}$, while the velocity field decompose itself in a dominant stationary part in form of an explicit multiscale expansion on the scales $y\\sim\\sqrt{x}$ and $y\\sim x$ and corrections decaying at least like $x^{-{9/8}+\\epsilon}$. The asymptotic fields are made of linear combinations of universal functions with coefficients depending mildly on the boundary data. The asymptotic expansion for the component parallel to ${\\bf u}_{\\infty}$ contains `non-trivial' terms in the parabolic scale with amplitude $\\ln(x)x^{-1}$ and $x^{-1}$. To first order, our results also imply that time-periodic wakes behave like stationary ones as $x\\to\\infty$. The class of functions used is `natural' in the sense that `Physically Reasonable' (in the sense of Finn & Smith) stationary solutions of the N.-S. equations around an obstacle are covered if the half-space is choosen sufficiently far downstream. The coefficients appearing in the asymptotics may then be linearly related to the net force acting on the obstacle. To our knowledge, it is the first time that estimates uncovering the $\\ln(x)x^{-1}$ correction are proved in this setting.

  11. 5 Putting Science into Action on Forest

    E-Print Network [OSTI]

    5 Putting Science into Action on Forest Service Lands William M. Block u.s. Forest Service, Rocky into Action on Forest Service Lands t':: Research and Development, National Forest Systems, State and Private Forestry, International Programs

  12. Prediction of hydrodynamic forces on oscillating bodies by unsteady turbulent wake theory

    SciTech Connect (OSTI)

    Matsumoto, Koichiro [NKK Corp., Tsu (Japan)

    1994-12-31T23:59:59.000Z

    In the paper presented at ISOPE-91, Edinburgh the author introduced a new practical theory to predict hydrodynamic forces acting on arbitrarily oscillating bodies. The theory is based on the assumption that the Morison`s equation can be applied with constant drag and mass coefficients provided that wake velocities produced by the body motions in all past history are properly corrected for. The induced wake velocity is calculated by the unsteady turbulent wake theory. In the present paper this new theory is applied to practical body oscillation problems such as the irregular oscillation of a cylinder, an oscillating cylinder in steady current, and the elliptic or circular oscillation of a cylinder. Some of the theoretical calculation results are compared with experiments, and the applicability of the theory is discussed.

  13. Calculation of wake power losses in a two-level array: a simple case study

    SciTech Connect (OSTI)

    Barnard, J.C.

    1985-12-01T23:59:59.000Z

    One method of adding capacity is to install another array of turbines whose hub height is above the existing array. This report estimates the wake interference that could be expected in a two-level array. Interference is estimated for a typical situation that may be encountered by a wind farm developer. A modified Lissaman array model is used to make the wake interference calculations. The model calculations show that the wake interference between the two levels is small for the turbine characteristics and turbine layouts considered. (The windwise spacings are about 5.4 and 10.8D for the lower and upper levels of turbines, respectively.) Power losses are about 5% or less at rated speed. Thus, two-level arrays may be a viable way of increasing the generating capacity of existing wind farms.

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

    E-Print Network [OSTI]

    Sahai, Aakash A

    2015-01-01T23:59:59.000Z

    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.

  15. Density compensation suggests interspecific competition is weak among terrestrial snails in tabonuco forest of Puerto Rico

    E-Print Network [OSTI]

    Willig, Michael

    in tabonuco forest of Puerto Rico Christopher P. Bloch1, * and Michael R. Willig2 1 Department of Biological *Corresponding author: cbloch@bridgew.edu ABSTRACT.--In the Luquillo Experimental Forest (LEF) of Puerto Rico-3, 159-168, 2012 Copyright 2012 College of Arts and Sciences University of Puerto Rico, Mayaguez 159 #12

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

    SciTech Connect (OSTI)

    Rob O. Hovsapian; Various

    2014-06-01T23:59:59.000Z

    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+

  17. Forest fires: from economic assessment

    E-Print Network [OSTI]

    Pettenella, Davide

    and increasing deadwood, increasing recreation activities in forests, climate change, ... ) need for multi and Merlo, 2005 - Mediterranean Forest Values:37-68 133 ha-1 (overall average value in 18 Mediterranean

  18. Sandia National Laboratories: understand wind-turbine wakes

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

    wind plant research facility at Texas Tech University in Lubbock, Texas. The Scaled Wind Farm Technology (SWiFT) facility is the first U.S. facility specifically designed and...

  19. Majoring in Forest Resources & Conservation

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    and management. The program emphasizes sustainable, multiple-use management and includes substantial field work work, etc.) Fall FNR 4624C Field Operations for Management of Ecosystems 3 credits FNR 4660 NaturalMajoring in Forest Resources & Conservation Specialization: Forest Resource Management Forest

  20. National Forest Inventory of Great

    E-Print Network [OSTI]

    National Forest Inventory of Great Britain Survey Manual #12;2 Remember to Save your Edit Session Regularly, Validate the information and Backup the Data NFI Survey Manual National Forest Inventory Survey in the surveys contributes to the National Forest Inventory (NFI) of Great Britain. With the information from

  1. Mensuration protocol National Forest Inventory

    E-Print Network [OSTI]

    NFI: Mensuration protocol for the National Forest Inventory June 2010 E. D. Mackie, R. W. Matthews and A. Brewer1 FR Biometrics Division 1 IFOS, Forestry Commission #12;National Forest Inventory (NFI or square boundary. In the case of a section 2 #12;National Forest Inventory (NFI): Mensuration Protocol

  2. 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

  3. ForestDevelopment Community Forestry

    E-Print Network [OSTI]

    Geldenhuys, Jaco

    in Africa as a basis for developing applied integrated, multiple use forest resource management for timber and non-timber forest products from these systems, and for forest rehabilitation af- ter degradation from to Fusarium circinatum. Forestry companies worldwide have tried to hybridise P. radiata with other Pinus

  4. Research Report Forests and carbon

    E-Print Network [OSTI]

    Research Report Forests and carbon: valuation, discounting and risk management #12;#12;Forests and carbon: valuation, discounting and risk management Gregory Valatin Forestry Commission: Edinburgh-0-85538-815-7 Valatin, G. (2010). Forests and carbon: valuation, discounting and risk management. Forestry Commission

  5. 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

  6. Review of Applied Physics Vol. 2 Iss. 4, December 2013 www.seipub.org/rap Frequency Selection in Heaving Airfoil Wakes

    E-Print Network [OSTI]

    Peinke, Joachim

    is a Karman vortex street, and the wake produces drag; while at high reduced frequencies, the wake becomes a reversed Karman vortex street. During the transition from drag to thrust-producing wakes, a neutral mode), to vortex-induced-vibrations (VIV) (Williamson 2004), and flow-induced-vibrations (FIV) (Belvin 1977

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

    E-Print Network [OSTI]

    Li, Mo

    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

  8. Clemson University Cooperative Extension Service Reportto the People

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    their forest management on their personal property. Numerous forestry professionals from universities Program was offered statewide to those interested in improving their understanding of forest management program that introduced landowners to the concepts of good forest management. The program was designed

  9. Clemson University Cooperative Extension Service Reportto the People

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    This program was offered statewide to anyone interested in improving their understanding of forest management of forest management. The programs are not designed to make landowners into foresters but to acquaint the management of their property. Forestry professionals from universities and private and public organizations

  10. atlantic forest state: Topics by E-print Network

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

    15 credits FORT 110* Forest Inventories (3) FORT 140 Forest Surveying (3) FORT 160 to Forestry 1 FORT 105 - Forest Mensuration* 3 FORT 110 - Forest...

  11. 456 USDA Forest Service Proceedings RMRS-P-18. 2001. Author Title

    E-Print Network [OSTI]

    , CO 80523-1499 970-491-5630 fax: 970-491-1965 barnett@nrel.colostate.edu Elisabeth Bartlett University Sciences Laboratory 860 North 1200 East Logan, UT 84321 dbartos@fs.fed.us Sarah Benanti Forest Resources

  12. Coffee landscapes as refugia for native woody biodiversity as forest loss continues in southwest Ethiopia

    E-Print Network [OSTI]

    Zavaleta, Erika

    Ethiopia Getachew Tadesse , Erika Zavaleta, Carol Shennan Environmental Studies Department, University and ecosystem services. Some of the last remaining forest frag- ments in Ethiopia, and the world's only habitats

  13. 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

  14. Under consideration for publication in J. Fluid Mech. 1 Wake of a cylinder performing rotary

    E-Print Network [OSTI]

    Godoy-Diana, Ramiro

    on the mean flow and the global drag applied on the cylinder. We then discuss the mechanism responsible cylinder, the effect of "in-line" oscillations on wake structure and hydrodynamic forces have been that the rotary oscillation of the cylinder could, for optimal parameters, achieve a significant drag reduction

  15. 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

  16. Master thesis: "Validation of wake-simulation models based on long-range lidar measurements."

    E-Print Network [OSTI]

    Peinke, Joachim

    REpower 6M wind turbines with rotor blades of different designs installed in the Ellhft/Westre wind farm developed by the wind turbine manufacturer. Work plan 2011 2012 Task 11 12 01 02 03 04 05 06 07 08 09 10 Figure 1: Simulation of lidar measurements in the wake of a wind turbine using a LES generated wind field

  17. Observations of wake characteristics at the Goodnoe Hills MOD-2 array

    SciTech Connect (OSTI)

    Buck, J.W.; Renne, D.S.

    1985-08-01T23:59:59.000Z

    The array of three MOD-2 wind turbines and two meteorological towers at Goodnoe Hills, Washington, provides an opportunity to evaluate turbine and wake interactions in a real environment. The triangular arrangement of the three turbines provides opportunities to study the effect of wakes on the performance of a downwind turbine at three different distances: 5, 7, and 10 rotor diameters (D), where 1 D is 300 ft. The information obtained from this test configuration is critical to future wind farm activities and is a key objective of the MOD-2 test program. This report describes the analysis of data measured at the turbines and towers from August 29 to November 12, 1982. The data are 2-min averages of 1-s values. Background flow characteristics were also examined to determine if flow variations across the site could mask wake measurements. For this analysis, one year's data gathered at the meteorological towers were analyzed. The results show some differences between characteristics measured at the towers, but these differences were not great enough to consider in evaluating wakes at the towers.

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

    E-Print Network [OSTI]

    in the past [3] [7], due to its implications for energy production, studies of the dy- namics of the wake, which may be of crucial importance for turbine loadings, are more rare. Here we present a new from upstream turbines. The wind energy LiDAR, ZephIR (Figure 1a), was de- veloped primarily to obtain

  19. 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

  20. 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

  1. Race and Male Employment in the Wake of the Great Recession

    E-Print Network [OSTI]

    Saldin, Dilano

    Race and Male Employment in the Wake of the Great Recession: Black Male Employment Rates by this Center), nearly half of working-age black males were not employed in many inner city neighborhoods.1 another devastating blow to inner city economies and the employment prospects of African American males

  2. 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

  3. Transient growth of secondary instabilities in parallel wakes: Anti lift-up mechanism and hyperbolic instability

    E-Print Network [OSTI]

    Boyer, Edmond

    and the transient growth of perturbations on a Von Karman vortex street, issuing from the development (2006); 10.1063/1.2159031 Vortex shedding in high Reynolds number axisymmetric bluff-body wakes: Local, 295 (2007)] in the context of an axisymmetric vortex. Presently, the optimal initial condition (the

  4. Forest Landscape Description and

    E-Print Network [OSTI]

    Standiford, Richard B.

    Forest Landscape Description and Inventories a basis for landplanning and design Pacific Southwest landscape description and inventories ­ a basis for land plan- ning and design. Berkeley, Calif., Pacific SW. Illustrates their application in two inventories made to aid managers and landscape architects in planning

  5. Extension Note Forest Research

    E-Print Network [OSTI]

    -based harvesting systems led to the development of the "Site Degradation Guidelines for the Vancouver Forest Region to validate soil disturbance guidelines, were lacking at that time. Early attempts had been made to assess, and to measure tree growth over the longer term as an indication of site productivity. The first trial

  6. International Conference MANAGING FORESTS

    E-Print Network [OSTI]

    speeches 1305-1310 Welcome by Chair of IUFRO Group 1.01.08 Ulf Johansson, SLU, Sweden 1310-1325 Opening-1440 The challenges of sustainability delivering multiple ecosystem services in a private sector commercial forest of Edinburgh, UK 1600-1620 Early thinning of energy wood in dense mixtures of Norway spruce and birch

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

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

    To help cut energy waste and improve U.S. energy productivity, the Energy Department announced today the winners of the first Challenge Home Student Design Competition. The winning...

  8. Near wake models for the hydrodynamics forces on a cylinder in periodic flow

    SciTech Connect (OSTI)

    Sibetheros, I.A.; Medeiros, E.F. [Univ. of Texas, Austin, TX (United States); Miksad, R.W. [Univ. of Virginia, Charlottesville, VA (United States). School of Engineering and Applied Science

    1995-12-31T23:59:59.000Z

    The relationship between hydrodynamic forces and the reversing near wake flow field around a cylinder in oscillatory farfield flow was experimentally investigated. A computer controlled pressurized water tunnel was employed to generate a planar harmonic flow past a stationary cylinder of Keulegan-Carpenter numbers (KC) in the inertia-drag flow regime and at subcritical Reynolds numbers (Re). Streamwise (u-) and cross-stream (v-) velocities near the cylinder and u-velocities at the far flow field were measured using a three-component LDV system. Inline and lift forces on the cylinder were measured using a very sensitive six-component load cell. A modal phase averaging technique was applied to the velocity data to estimate averaged velocity cycles that distinguish between positive and negative flow modes. A positive (negative) flow mode signifies dominant vortex shedding and motion occurring from the top (bottom) of the cylinder, respectively. The force measurements were likewise phase averaged into positive and negative mode force cycles. u- and v-velocity profiles for KC = 10, 15, and 20, based on modal phase averages of velocity measurements, were used to estimate averaged wake u- and v-velocities. These wake velocities were used in the place of the undisturbed farfield u-velocity as inputs to Morison`s equation for the inline force, and to the quasi-steady model for the lift force. It was found that, for KC = 15 a significant improvement in the prediction of lift force was achieved using the wake-based lift force model, whereas a smaller improvement in the inline force prediction was obtained from the wake-based Morison`s equation.

  9. What is the National Forest Inventory? The National Forest Inventory is a record of key information about forests

    E-Print Network [OSTI]

    What is the National Forest Inventory? The National Forest Inventory is a record of key information is the information gathered? Data for the National Forest Inventory is being collected using ground surveys, aerial representative picture of the state of Britain's forests and woodland. National Forest Inventory #12;Has

  10. FCS Guidance Note 33: Forest operations and red squirrels: November 2006 Forest operations and red squirrels in Scottish forests

    E-Print Network [OSTI]

    impacts on red squirrels. The survey, forest design and operational planning practices set outFCS Guidance Note 33: Forest operations and red squirrels: November 2006 1 Forest operations Guidance Note: Forest operations and wildlife in Scottish forests. This note sets out further advice on how

  11. Old growth in northwestern California National Forests. Forest Service research paper

    SciTech Connect (OSTI)

    Beardsley, D.; Warbington, R.

    1996-06-01T23:59:59.000Z

    This report estimates old-growth forest area and summarizes stand characteristics of old growth in northwestern California National Forests by forest type. Old-growth definitions for each forest type are used.

  12. Sustainable Forest Bioenergy Initiative

    SciTech Connect (OSTI)

    Breger, Dwayne; Rizzo, Rob

    2011-09-20T23:59:59.000Z

    In the states 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 nations 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 states 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 states 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 states 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 states 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

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

    DOE Patents [OSTI]

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

    1987-08-31T23:59:59.000Z

    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.

  14. Brandeis University Brown University

    E-Print Network [OSTI]

    Jiang, Huiqiang

    Institute of Technology McGill University Michigan State University New York University Northwestern University of Kansas University of Maryland, College Park University of Michigan University of MinnesotaBrandeis University Brown University California Institute of Technology Carnegie Mellon University

  15. 21cm Forest with the SKA

    E-Print Network [OSTI]

    Ciardi, Benedetta; Mack, Katherine J; Xu, Yidong; Bernardi, Gianni

    2015-01-01T23:59:59.000Z

    An alternative to both the tomography technique and the power spectrum approach is to search for the 21cm forest, that is the 21cm absorption features against high-z radio loud sources caused by the intervening cold neutral intergalactic medium (IGM) and collapsed structures. Although the existence of high-z radio loud sources has not been confirmed yet, SKA-low would be the instrument of choice to find such sources as they are expected to have spectra steeper than their lower-z counterparts. Since the strongest absorption features arise from small scale structures (few tens of physical kpc, or even lower), the 21cm forest can probe the HI density power spectrum on small scales not amenable to measurements by any other means. Also, it can be a unique probe of the heating process and the thermal history of the early universe, as the signal is strongly dependent on the IGM temperature. Here we show what SKA1-low could do in terms of detecting the 21cm forest in the redshift range z = 7.5-15.

  16. 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...

  17. Kelp Forests of the Santa Barbara Channel

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Kelp Forests of the Santa Barbara Channel Revised Fourth Edition Kelp Forests of the Santa Barbara Research Program Santa Barbara Coastal Long Term Ecological Research Program #12;Kelp Forests of the Santa

  18. 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 ...

  19. Protection of Forest Resources (Montana)

    Broader source: Energy.gov [DOE]

    This statute addresses the conservation and protection of forest resources by encouraging the use of land management best practices pertaining to soil erosion, timber sale planning, associated road...

  20. Forest density mapping in the lower 48 states: A regression procedure. Forest Service research paper

    SciTech Connect (OSTI)

    Zhu, Z.

    1994-01-01T23:59:59.000Z

    The United States Department of Agriculture, Forest Service, Southern Forest Experiment Station's Forest Inventory and Analysis (SO-FIA) research unit conducted a project to map the distribution of forest lands for the entire United States. Forest types and forest densities were mapped, and a new forest type group map for the country was produced (Powell and others, in press; Zhu and Evans 1992). The project supported the 1993 Forest and Rangeland Renewable Resources Planning Act (RPA) Assessment Update program, by which the Forest Service was required to provide statistics on current forest land and rangeland conditions.

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

    SciTech Connect (OSTI)

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

    2011-12-01T23:59:59.000Z

    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.

  2. A Statistic for identifying cosmic string wakes and other sheet-like structure

    E-Print Network [OSTI]

    James Robinson; Andreas Albrecht

    1996-02-26T23:59:59.000Z

    We describe an implementation of the structure functions of Babul \\& Starkman, in order to quantify the ``sheet-like'' nature of a distribution of matter. We test this statistic on a toy model describing cosmic string wakes, and show that it does a better job than other statistics which have been proposed for distinguishing non-Gaussianity in the form of sheets. We conclude that the most favoured cosmic string model is unlikely to produce a significant increase in the sheet-like nature of the matter distribution beyond that which occurs in Gaussian models (with the same power spectrum) due to the formation of Zeldovich pancakes. Although the statistic was developed in the context of cosmic string wake formation, we expect it to be useful for comparing the observed galaxy distribution with a wide range of theoretical models with different power spectra.

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

    E-Print Network [OSTI]

    D'Adamo, Juan; Wesfreid, Jos Eduardo

    2015-01-01T23:59:59.000Z

    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...

  4. EWEC 2006 Wind Energy Conference and Exhibition Turbine Wake Model for Wind Resource Software

    E-Print Network [OSTI]

    EWEC 2006 Wind Energy Conference and Exhibition 1 Turbine Wake Model for Wind Resource Software Ole) AT: #12;EWEC 2006 Wind Energy Conference and Exhibition 2 21 2 0TT C U= (1) 0 0(1 )wU a U= - (2); 1.5 0.75 AR Aw0 U0 Uw0 T #12;EWEC 2006 Wind Energy Conference and Exhibition 3 ( )2 0 1 ( , ) 1

  5. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    Forest Service Ron Jarvis The Home Depot Thomas Jorling International Paper Company Sara Kendall Executive Director Mark Ashton Professor of Silviculture and Forest Ecology Graeme Berlyn Professor

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

    E-Print Network [OSTI]

    Homann, Holger

    2015-01-01T23:59:59.000Z

    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...

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

    E-Print Network [OSTI]

    Haakonsen, Christian Bernt; Zhou, Chuteng

    2015-01-01T23:59:59.000Z

    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...

  8. Majoring in Forest Resources & Conservation

    E-Print Network [OSTI]

    Watson, Craig A.

    Majoring in Forest Resources & Conservation Environmental Pre-Law provides a solid undergraduate-use management and includes substantial field work and group projects. Specialization: Environmental Pre-Law Summer B FOR3200C Foundations in Natural Resources and Conservation 3 credits FOR3434C Forest Resources

  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. Global warming accelerates drought-induced forest death

    ScienceCinema (OSTI)

    McDowell, Nathan; Pockman, William

    2014-06-02T23:59:59.000Z

    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.

  11. Global warming accelerates drought-induced forest death

    SciTech Connect (OSTI)

    McDowell, Nathan; Pockman, William

    2013-07-09T23:59:59.000Z

    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.

  12. The Future of Forest Certification in A Roundtable Discussion by Forest Stakeholders

    E-Print Network [OSTI]

    , minimize energy wastes, follow local laws, and respect people's rights. Multiple forest certification upon them. One strategy is forest certification. Certification of forests and forest products is touted as a strategy for sustaining forests and the life support services they provide. Rather than remain mired in win

  13. For Immediate Release: January 30, 2008 Sustaining Virginia's Forests through Forest Certification

    E-Print Network [OSTI]

    and products processed in ways that sustain forest health, minimize energy wastes, follow local laws, and the people and communities that depend upon them. One strategy is forest certification. Certification of forests and forest products is touted as a strategy for sustaining forests and the life support services

  14. UK Forestry Standard Guidelines Forests and people

    E-Print Network [OSTI]

    UK Forestry Standard Guidelines Forests and people #12;Key to symbols UKFS Requirements for sustainable forest management Element of SFM Reference number Good forestry practice requirement Reference #12;UK Forestry Standard Guidelines Forests and people Forestry Commission: Edinburgh #12;ii Forests

  15. Guidelines on local European forest energy

    E-Print Network [OSTI]

    Pettenella, Davide

    fellings, ... and Biodisel, bioethanol and oil from crops (forest) cutting 20% of the GHS gas emissions

  16. 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.

    2014-12-01T23:59:59.000Z

    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.

  17. An Evaluation of the Perceived Effectiveness of the Municipal Forester Institute on its Participants

    E-Print Network [OSTI]

    Kirk, Melanie Rena'

    2011-02-22T23:59:59.000Z

    AN EVALUATION OF THE PERCEIVED EFFECTIVENESS OF THE MUNICIPAL FORESTER INSTITUTE ON ITS PARTICIPANTS A Dissertation by MELANIE RENA? KIRK Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2009 Major Subject: Agricultural Leadership, Education, and Communications AN EVALUATION OF THE PERCEIVED EFFECTIVENESS OF THE MUNICIPAL FORESTER INSTITUTE...

  18. MICROBIAL RESPIRATION RESPONSE TO C, N, AND P AVAILABILITY IN LOBLOLLY PINE FOREST SOILS

    E-Print Network [OSTI]

    Whisenant, Justin

    2011-05-05T23:59:59.000Z

    MICROBIAL RESPIRATION RESPONSE TO N AND P AVAILABILITY IN LOBLOLLY PINE FOREST SOILS Major: Forest Management Spatial Science April 2011 Submitted to the Office of Undergraduate Research Texas A&M University in partial... fulfillment of the requirements for the designation as UNDERGRADUATE RESEARCH SCHOLAR A Senior Scholars Thesis by JUSTIN M. WHISENANT A Senior Scholars Thesis by JUSTIN M. WHISENANT MICROBIAL RESPIRATION RESPONSE TO N AND P AVAILABILITY...

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

    E-Print Network [OSTI]

    Rigsby, Shelley Renee

    1980-01-01T23:59:59.000Z

    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...

  20. Forests and The Texas Economy.

    E-Print Network [OSTI]

    Laughlin, Jay O'; Williams, Richard A.

    1988-01-01T23:59:59.000Z

    in tree mortality caused by pine bark beetles and the con version of timberland to other uses. The effects of pro jected land use changes are illustrated in Figure 10-1. The future of the forest industry sector depends on the sol ution to timber growth... organizations interested in forestry in Texas. As an indication of the economic and social importance of forests, both the public and private sectors are well represented. The forest products industry, an important component of the forestry sector...

  1. Conifer introductions decrease richness and alter composition of litter-dwelling beetles (Coleoptera) in Carpathian oak forests

    E-Print Network [OSTI]

    Hui, Bowen

    of Applied Ecology, Faculty of Ecology and Environmental Science, Technical University in Zvolen, T and Environmental Science, Technical University in Zvolen, T.G. Masaryka 24, 960 53 Zvolen, Slovakia c College of Forest Resources, University of Washington, Box 352100, Seattle, WA 98195-2100, USA Received 9 June 2006

  2. Renewable Energy Deployment Projects for Forest County Potawatomi...

    Office of Environmental Management (EM)

    Energy Deployment Projects for Forest County Potawatomi Community Renewable Energy Deployment Projects for Forest County Potawatomi Community Rooftop PV installation on the Forest...

  3. Comparison of model and observations of the wake of a MOD-OA wind turbine

    SciTech Connect (OSTI)

    Doran, J.C.; Packard, K.R.

    1982-10-01T23:59:59.000Z

    A series of wind velocity measurements upwind and downwind of the MOD-OA wind turbine at Clayton, New Mexico, was used to determine some of the characteristics of wakes within approximately two blade diameters of the machine. The magnitudes and shapes of the velocity profiles downwind of the turbine were compared with results obtained from a model. Generally good agreement was obtained at speeds well below the rated speed of the MOD-OA, but the results were not as satisfactory for higher values.

  4. Special Issue: High Elevation Forests

    E-Print Network [OSTI]

    . They yield raw material for rustic homes, exquisite paneling, and life-giving energy. They capture, purify gathering, hunting, and places to wow visitors. (For the purpose of this report, high country forests

  5. Mastication of forest biomass for wildfire hazard reduction and forest health improvement has expanded dramatically

    E-Print Network [OSTI]

    Mastication of forest biomass for wildfire hazard reduction and forest health improvement has or tree spacing is adequate to allow sufficient room for equipment operation. b. Carefully review

  6. Journal of Tropical Ecology http://journals.cambridge.org/TRO

    E-Print Network [OSTI]

    Malhi, Yadvinder

    and Centre for Energy, Environment, and Sustainability, 1834 Wake Forest Road, Winston-Salem, NC, USA Sciences, Umea, Sweden School of Geography, University of Exeter, Rennes Drive, Exeter EX4 4RJ, UK

  7. Remote sensing and forest damage

    SciTech Connect (OSTI)

    Reid, N.J.

    1987-05-01T23:59:59.000Z

    Each year, damage to North American forests caused by insects, diseases, pollution, and fire results in multibillion dollar losses of revenue and resources. To respond to these losses effectively, forest managers need timely information on the location, extent, and spread of the damage. Traditional techniques for monitoring forest damage include high-resolution aerial photography, color infrared photography, and visual reconnaissance mapping. These techniques require visual interpretation of the data and often are somewhat subjective. In addition, because such analyses are time-consuming and costly, many areas of forest are never mapped, and in cases where maps exist, they often are obsolete or incomplete. An airborne imager has been developed to solve the problems of time-consuming visual analysis and interpretations. The Programmable Multispectral Imager measures small changes - invisible by conventional detection methods - in light reflected by the forest canopy. The PMI measures the color an intensity of reflected light and records this information digitally in computer tape aboard an aircraft. This information is then available for later entry into a computer for processing and enhancement. Although airborne imagers have been available for nearly three decades, they have not been used extensively for forest damage assessment or other forestry applications because of their poor sensitivity and their limited number of fixed spectral channels. The PMI is the first of a new generation of imagers that combine high sensitivity with the flexibility of continuous spectral coverage. This allows scientists to evaluate the potential causes and effects of stress on vegetation.

  8. Seasonal patterns of coarse sediment transport on a mixed sand and gravel beach due to vessel wakes, wind waves, and tidal currents

    E-Print Network [OSTI]

    Talke, Stefan

    Seasonal patterns of coarse sediment transport on a mixed sand and gravel beach due to vessel wakes, wind waves, and tidal currents Gregory M. Curtiss a, , Philip D. Osborne b,1 , Alexander R. Horner December 2008 Accepted 29 December 2008 Keywords: mixed sand and gravel beach ferry wake wash beach

  9. Stability of parallel wake flows in quasigeostrophic and frontal regimes Laboratoire de Mcanique Physique et Goscience, Universit du Havre, 25, rue Philippe Lebon,

    E-Print Network [OSTI]

    cole Normale Suprieure

    that the vortex-street formed in the wake of a towed cylinder in a rotating shallow-water layer could present The dynamical origin of the classical two-dimensional von Karman street generated in the wake of an obstacle has smaller than -f. This three-dimensional instability is transient and the von Karman street becomes

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

    E-Print Network [OSTI]

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

    2015-04-23T23:59:59.000Z

    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).

  11. Aachen RWTH Aarhus University Aberdeen University Adelaide University Alabama University Alberta University Amsterdam University Arizona University Auckland University Australian National University Bath University Beijing

    E-Print Network [OSTI]

    Tisdell, Chris

    Massachusetts University Massey University McGill University McMaster University Melbourne University Michigan State University Michigan University Minnesota University Monash University Montpellier UniversityAachen RWTH Aarhus University Aberdeen University Adelaide University Alabama University Alberta

  12. Wake Up!

    E-Print Network [OSTI]

    2012-03-05T23:59:59.000Z

    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...

  13. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    Farmland Trust Philip Janik USDA Forest Service Ron Jarvis The Home Depot Thomas Jorling International Oliver Director Gary Dunning Executive Director Mark Ashton Professor of Silviculture and Forest Ecology

  14. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    The Trust for Public Land Ron Jarvis The Home Depot Michael Jenkins Forest Trends Aban Kabraji The World Nancy Marek Project Manager Mark Ashton Professor of Silviculture and Forest Ecology Graeme Berlyn

  15. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    of Pennsylvania John Gordon InterForest Rose Harvey The Trust for Public Land Ron Jarvis The Home Depot Michael Barbara Ruth Program Coordinator Mark Ashton Professor of Silviculture and Forest Ecology and Director

  16. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    Global Institute of Sustainable Forestry Mark Ashton Professor of Silviculture and Forest Ecology Graeme The Forestland Group Ralph Grossi American Farmland Trust Philip Janik USDA Forest Service Ron Jarvis The Home

  17. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    American Farmland Trust Philip Janik USDA Forest Service Ron Jarvis The Home Depot Thomas Jorling Chadwick Oliver Director Gary Dunning Executive Director Mark Ashton Professor of Silviculture and Forest

  18. Department of Forest Resourcesand Environmental Conservation

    E-Print Network [OSTI]

    Buehrer, R. Michael

    , MF, MNR, and PhD). Its research areas include Forest Ecology and Management, Forest Biometrics on a perception-based score plus a citation-and-publication-based composite index. The National Research Council

  19. KELP FOREST FOOD WEBS IN GWAII HAANAS

    E-Print Network [OSTI]

    Grazing Rates on Kelp Assimilation of Kelp-derived Organic Carbon in Kelp Forest Food Webs | 33 IntertidalKELP FOREST FOOD WEBS IN GWAII HAANAS: Ecosystem-Level Effects of Predator Depletion and Recovery

  20. FINLAND SOURCES 2007 -Forest industry production Authorities

    E-Print Network [OSTI]

    FINLAND SOURCES 2007 - Forest industry production Print Home Finland Government Authorities Local Turnover Profit Energy Year 2006 Shipping Business services Infrastructure Economy Education strategy of the EU's Forest-Based Industries Technology Platform provides a good basis for preparing

  1. National Forest Inventory Description of attributes

    E-Print Network [OSTI]

    National Forest Inventory Description of attributes Woodland_S: Woodland source (a) NFI base map have been mapped in accordance with the NFI mapping rules. National Forest Inventory #12;(f) 2010 AP

  2. Forests and biodiversity UK Forestry Standard Guidelines

    E-Print Network [OSTI]

    ; forestry; soil; sustainable forest management; UK Forestry Standard. FCGL001/FC-GB(MMJ)/JTCP-2.5K/NOV11 for sustainable forest management Good forestry practice requirement Element of SFM Reference number Legal

  3. Relating forest biomass to SAR data

    SciTech Connect (OSTI)

    LeToan, T.; Beaudoin, A. (Centre d'Etude Spatiale des Rayonnements CNRS- Univ. Paul Sabatier Toulouse (FR)); Riom, J.; Guyon, D. (Lab. de Bioclimatologie INRA, Bordeaux (FR))

    1992-03-01T23:59:59.000Z

    This paper presents the results of an experiment defined to demonstrate the use of radar to retrieve forest biomass. The SAR data, after calibration, has been analyzed together with ground data collected on forest stands from young stage (8 yrs) to nature stage (46 yrs). The dynamic range of the radar backscatter intensity from forest was found maximum at P-band and decreases with increasing frequencies. Also, cross-polarized backscatter intensity yields the best sensitivities to variations of forest biomass. L-band data confirmed past results on good correlation with forest parameters. The most striking observation has been the strong correlation of P-band backscatter intensity to forest biomass. In order to develop algorithms to infer forest biomass from spaceborne SAR's, the experimental results will be compared with observations on other forest ecosystems and will be interpreted by theoretical modeling.

  4. Forest plantations in the Midsouth, USA. Forest Service research paper

    SciTech Connect (OSTI)

    Rosson, J.F.

    1995-09-01T23:59:59.000Z

    Plantation forestry is one means of controlling the temporal and spatial aspects of stand regeneration after harvest. Intensive plantation forestry can ultimately reduce harvesting pressure and disturbance on natural stands and and stands intended to be set aside for esthetics, recreation, or watershed protection. Reported here is the status of forest plantations in the Midsouth States. It is important to know if plantations are meeting their fullest potential and what shortcomings, if any, need to be addressed. Information gathered includes plantation area, forest type, ownership, volume, site class, and stockings. Additionally, comparisons were made to see if there was a difference between plantation and natural-stand volumes.

  5. Wavenumber-frequency analysis of the wall pressure fluctuations in the wake of a rear view mirror using a

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    problems leading to expensive late design changes, together with the high cost of wind tunnel sessionsWavenumber-frequency analysis of the wall pressure fluctuations in the wake of a rear view mirror method for the numerical prediction of the wind noise inside a car is the coupling of an unsteady

  6. Abstract--Security in physical environments has become increasingly important in the wake of terror and criminal activity,

    E-Print Network [OSTI]

    Biuk-Aghai, Robert P.

    of terror and criminal activity, particularly over the past decade. One of the challenges is to identify, RFID, security. I. INTRODUCTION n the wake of increased terrorist and criminal activity over the past, and this technology is being adopted by governments and private agencies around the world. This research was sponsored

  7. Cyclone-anticyclone asymmetry of large-scale wakes in the laboratory G. Perret, A. Stegner, and M. Farge

    E-Print Network [OSTI]

    Stegner Alexandre

    extreme cases, coherent cyclones do not emerge at all, and only an anticyclonic vortex street appears.6. Hence, we found that a large-scale wake could differ strongly from the classical Karman street when elongated. In the Earth's ocean, large-scale eddies such as submesoscale coherent vortex,5 meddies

  8. Assessing Urban Forest Effects and Values

    E-Print Network [OSTI]

    in the Scranton area. The Authors DAVID J. NOWAK is a research forester and project leader, ROBERT E. HOEHN III

  9. Denman Forestry Issues Series: Washington's Forest Regulations

    E-Print Network [OSTI]

    Borenstein, Elhanan

    Denman Forestry Issues Series: Washington's Forest Regulations and Their Impacts on The Private College of Forest Resources continued its Denman Forestry Issues Series on May 30, 2001. Alumni landowners. Policy analysts and speakers representing the Washington Farm Forestry Assn., Washington Forest

  10. UK Forestry Standard Guidelines Forests and

    E-Print Network [OSTI]

    UK Forestry Standard Guidelines Forests and climate change #12;Key to symbols UKFS Requirements for sustainable forest management Good forestry practice requirement Element of SFM Reference number Legal of SFM Reference number #12;Forests and climate change Forestry Commission: Edinburgh UK Forestry

  11. SDPISustainable Development Policy Institute Pakistan Forest

    E-Print Network [OSTI]

    Richner, Heinz

    #12;SDPISustainable Development Policy Institute Quarterly Pakistan Forest Digest Vol. 01, No. 03 Development Policy Institute Pakistan Forest Digest ii Vol. 1, No. 3, October - December 2010 Quarterly Pakistan Forest Digest Vol. 01, No. 03 ISSN: 2218-8045 October - December 2010 Editor-in-Chief Dr. Abid

  12. SDPISustainable Development Policy Institute Pakistan Forest

    E-Print Network [OSTI]

    Richner, Heinz

    #12;SDPISustainable Development Policy Institute Quarterly Pakistan Forest Digest Vol. 01, No. 01 Development Policy Institute Pakistan Forest Digest iii Vol. 1, No. 1, April June 2010 Quarterly Pakistan Forest Digest Vol. 01, No. 01 ISBN: 2218-8045 April June 2010 Contents P. No Introductions: Pakistan

  13. Global integration for metals, mining and forest

    E-Print Network [OSTI]

    such as coils, bars and sheets. · Forest and paper companies own or lease forests, cut timber, process woodBeyond the familiar Global integration for metals, mining and forest and paper companies Industrial commitment by IBM Global Business Services to provide analysis and viewpoints that help companies realize

  14. Sustainability the forest and paper industry

    E-Print Network [OSTI]

    Sustainability the forest and paper industry on its way to sustainability http Sustainable Forestry Practices In Tune with the Environment The Forest and Paper Industry's Energy Profile 2 3 5 7 9 12 #12;1 Sustainability 10 Years after Rio The Forest and Paper Industry's Messages

  15. 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;1 Sustainability 10 Years after Rio The Forest and Paper Industry's Messages Sustainability has become an essential

  16. North Dakota`s forest resources, 1994

    SciTech Connect (OSTI)

    Haugen, D.E.; Piva, R.J.; Kingsley, N.P.; Harsel, R.A.

    1999-09-01T23:59:59.000Z

    The third inventory of North Dakota`s forests reports 44.1 million acres of land, of which 673 thousand acres are forested. This paper contains detailed tables related to area, volume, growth, removals, mortality, and ownership of North Dakota`s forests.

  17. Forests and soil UK Forestry Standard Guidelines

    E-Print Network [OSTI]

    ; forestry; soil; sustainable forest management; UK Forestry Standard. FCGL006/FC-GB(MMJ)/JCTP-2.5K/NOV11 for sustainable forest management Good forestry practice requirement Element of SFM Reference number LegalForests and soil UK Forestry Standard Guidelines #12;Key to symbols UKFS Requirements

  18. Forest Research Much more than trees

    E-Print Network [OSTI]

    and scientific experts in sustainable forest management. Our scientists, mathematical modellers and survey staff and supplying scientific evidence on the human, ecological and economic aspects of sustainable forest management and land-use management, whose work focuses on the use of applied science for tree, woodland and forest

  19. Forest Products | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartment of Energy's FinancialForest Products Forest Products

  20. Oregon State University Sun Grant Western Regional Center

    E-Print Network [OSTI]

    Tullos, Desiree

    biomass into various products. This approach will diversify the value of forest biomass. Progress to DateOregon State University Sun Grant Western Regional Center A Forest Residue-Based Pyrolysis to produce much-needed biofuels, supply valuable bioproducts, utilize waste streams and create jobs in rural

  1. Forest Fuels ReductionForest Fuels Reduction Department of

    E-Print Network [OSTI]

    Bolding, M. Chad

    the initial fuels reduction treatments leave the site with regard to long-term forest vegetation and soil are the productivity and cost rates for alternative choices of equipment for mechanical fuels reduction; what reduction operations for existing markets and new markets? (eg. biomass energy) Research Rationale

  2. Hurricane Disturbance Alters Secondary Forest Recovery in Puerto Rico Dan F.B. Flynn1,7

    E-Print Network [OSTI]

    Uriarte, Maria

    Hurricane Disturbance Alters Secondary Forest Recovery in Puerto Rico Dan F.B. Flynn1,7 , Mar, Statesboro, GA 30460, U.S.A. 4 Institute for Tropical Ecosystem Studies, University of Puerto Rico, San Juan, Puerto Rico 00931, U.S.A. 5 Department of Biology, University of Puerto Rico, San Juan, Puerto Rico 00931

  3. Majoring in Forest Resources & Conservation

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    -use management and includes substantial field work and group projects. Summer B FOR3200C Foundations in NaturalMajoring in Forest Resources & Conservation Specialization: Watershed Science & Management Watershed Science & Management prepares students to address the many management issues associated with water

  4. COMPARING FOREST MANAGEMENT PRACTICES UNDER

    E-Print Network [OSTI]

    COMPARING FOREST MANAGEMENT PRACTICES UNDER COMMUNITY-BASED AND CONVENTIONAL TENURES IN BRITISH OF MASTER OF RESOURCE MANAGEMENT In the School of Resource and Environmental Management © David Mealiea 2011 of Canada, this work may be reproduced, without authorization, under the conditions for Fair Dealing

  5. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    Standiford, Richard B.

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Progress of Slash Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 with slash are based in part on information on its rate of breakdown and decay. Slash changes in structure. U.S. DEPARTMENT OF AG P.O. BOX 245, BERKELEY LOGGING SLASH: its breakdown and decay at two forests

  6. agricultural university wageningen: Topics by E-print Network

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

    ?born Dep. of Crop Production Ecology, SLU Gert Nyberg Dep. of Forest Ecology and Management, SLU Participatory soil and water 12 Montana State University 1 M.S. in...

  7. FORESTRY, WILDLIFE AND FISHERIES ASSISTANT PROFESSOR OF Forest/Natural Resources Biometrics

    E-Print Network [OSTI]

    Tennessee, University of

    FORESTRY, WILDLIFE AND FISHERIES ASSISTANT PROFESSOR OF Forest/Natural Resources Biometrics The Department of Forestry, Wildlife and Fisheries at the University of Tennessee-Knoxville invites applications have at least one degree in Forestry from an SAF-accredited program. Demonstrated experience in field

  8. 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

  9. Butterfly species richness and community composition in forests affected by ENSO-induced burning and habitat

    E-Print Network [OSTI]

    Mooers, Arne

    shown to be sensitive to global climate change (Dennis 1993); non-migrat@hotmail.com. Department of Biological Sciences, Simon Fraser University, Burnaby, B.C. Canada V5A 1S6. 1 To whom surrounded by the burned forest this indicates that the habitat (burned or unburned) overrides geographical

  10. R E V I E W Mineral soil carbon fluxes in forests and implications for

    E-Print Network [OSTI]

    Vermont, University of

    not considered in accounting for global C fluxes because mineral soil C is commonly thought to be relativelyR E V I E W Mineral soil carbon fluxes in forests and implications for carbon balance assessments of Environment and Natural Resources, 209 Hills Building, University of Vermont, 81 Carrigan Drive, Burlington

  11. U.S Markets for Certified and Non-Certified Hardwood Tropical Forest Products

    E-Print Network [OSTI]

    Wu, Qinglin

    which approached 2 million (mainly wooden) houses (FAO/UNECE, 2004). By 1992, Latin America supplied 70 volume and 57 percent of value. Latin America was the second largest supplier of tropical hardwood veneer Forest Products Development Center School of Renewable Natural Resources Louisiana State University

  12. Energy Audit Results for Forest City Phase I and Phase II

    E-Print Network [OSTI]

    `i Natural Energy Institute School of Ocean and Earth Science and Technology University of Hawai`i April 2013Energy Audit Results for Forest City Phase I and Phase II Prepared for the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Under Cooperative Agreement No. DE-EE0003507

  13. 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.

  14. Prediction of characteristics of two dimensional turbulent wakes under the influence of streamline curvature and zero, positive and negative pressure gradients

    E-Print Network [OSTI]

    Pappu, Kameswara Rao

    1993-01-01T23:59:59.000Z

    stresses. The theory also describes the straight wake as a special case, for which the radius of curvature approaches infinity. To show general validity of theory, it has been compared with experimental measurements available from Turbomachinery...

  15. COLORADO STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENT CFRI Conference onCFRI Conference onCFRI Conference onCFRI Conference on W

    E-Print Network [OSTI]

    STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENT CFRI Conference on.outcomes on the ground.outcomes on the ground. o Foundation = Statewide Forest Resource AssessmentsFoundation = Statewide Forest Resource AssessmentsFoundation = Statewide Forest Resource AssessmentsFoundation = Statewide

  16. 2013 Colorado Forest Health Report 2013 Report on the

    E-Print Network [OSTI]

    2013 Colorado Forest Health Report 2013 Report on the Health of Colorado's Forests Caring Timm Schaubert, Outreach Division Supervisor. Thanks also to William M. Ciesla, Forest Health;A January 2014 2013 Colorado Forest Health Report As your new Colorado State Forester, it is my

  17. An Evaluation of the Perceived Effectiveness of the Municipal Forester Institute on its Participants

    E-Print Network [OSTI]

    Kirk, Melanie Rena'

    2011-02-22T23:59:59.000Z

    AN EVALUATION OF THE PERCEIVED EFFECTIVENESS OF THE MUNICIPAL FORESTER INSTITUTE ON ITS PARTICIPANTS A Dissertation by MELANIE RENA? KIRK Submitted to the Office of Graduate Studies of Texas A&M University in partial... ON ITS PARTICIPANTS A Dissertation by MELANIE RENA? KIRK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee...

  18. Forested tract-size profile of South Carolina`s NIPF landowners. Forest Service research paper

    SciTech Connect (OSTI)

    Thompson, M.T.

    1997-04-01T23:59:59.000Z

    Information gathered from 3078 permanent forest survey sample plots showed that nearly 0.9 million acres, or 10 percent of the nonindustrial private forest (NIPF) timberland in South Carolina is in forested tracts 10 acres or less. Forested tracts ranging from 11 to 100 acres accounted for the largest proportion of NIPF timberland. Forested tract size varied significantly by NIPF-ownership group. By NIPF-ownership group, the other corporate group recorded the highest average forested tract size of 3,802 acres. Volume of softwood growing stock as significantly higher in the larger tract size categories. Hardwood growing-stock volume per acre was significantly higher in the largest and smallest forested tract-size classes. Softwood growing-stock removals exceeded growth across all forested-parcel categories, whereas hardwood growing-stock growth surpassed hardwood removals in two tract-size classes.

  19. Soil-site relationships to photodelineated forest types

    E-Print Network [OSTI]

    King, Dale Robert

    1975-01-01T23:59:59.000Z

    Nater Use Soil Recharge 50 Potential Evapotranspiration late r Surplus J F M A M J J A 5 0 N D Fig. 2. Mean mater balance diagram for Conroe, Fexas based upon fifty years of record and for a soil mater storage capacity of 254 mm... SOIL-SITE RELATIONSHIPS TO PHOTODELINEATED FOREST TYPES A Thesis by DALE ROBERT KING Submitted to the Graduate College of Texas A(M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1975 Major...

  20. 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.

    2012-07-01T23:59:59.000Z

    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.

  1. 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.

    2011-07-01T23:59:59.000Z

    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.

  2. China's forest products trade falls nearly 18% China's forest products trade falls nearly 18%

    E-Print Network [OSTI]

    China's forest products trade falls nearly 18% China's forest products trade falls nearly 18% 11/08/2009 - 09:05 According to China's latest Customs statistics, foreign trade of China's forest products in the first five months showed a year-on-year general downturn. The total value of foreign trade of China

  3. Illegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests, global climate

    E-Print Network [OSTI]

    contracts with logging companies covering more than 15 million hectares of forest," the report stated with logging companies instead giving villages gifts of salt and beer worth less than $100. "In a contextIllegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests

  4. Forest statistics for Michigan's eastern upper peninsula unit, 1993. Forest Service resource bulletin

    SciTech Connect (OSTI)

    Schmidt, T.L.

    1993-01-01T23:59:59.000Z

    Forest Inventory and Analysis (FIA) is a continuing endeavor as mandated by the Renewable Resources Research Act of 1978. The objective of FIA is to periodically inventory the Nation's forest land to determine its extent, condition, and volume of timber, growth, and removals. Up-to-date resource information is essential to frame forest policies and programs.

  5. PUBLIC ACCEPTABILITY OF FOREST MANAGEMENT PRACTICES AT MORGAN-MONROE STATE FOREST

    E-Print Network [OSTI]

    providing brief explanations of alternative management practices. An on-site survey of recreationists to forest management on public land, the present study used survey methodologies to examine stakeholder254 PUBLIC ACCEPTABILITY OF FOREST MANAGEMENT PRACTICES AT MORGAN-MONROE STATE FOREST Shannon C

  6. EAST TEXAS FOREST INVENTORY (ETFI) PILOT PROJECT REMOTE SENSING PHASE

    E-Print Network [OSTI]

    Hung, I-Kuai

    EAST TEXAS FOREST INVENTORY (ETFI) PILOT PROJECT REMOTE SENSING PHASE Dr. Daniel R. Unger, Remote) or the United States Forest Service (USFS) via the Southern Forest Inventory and Analysis Program (SFIA

  7. Forest biomass as a source of renewable energy in Turkey

    SciTech Connect (OSTI)

    Tuerker, M.F.; Ayaz, H.; Kaygusuz, K. [Karadeniz Technical Univ., Trabzon (Turkey)

    1999-10-01T23:59:59.000Z

    In Turkey illegal cutting takes place, which cannot be controlled. Legal cuttings have also been done by several state forest enterprises. As a result, the amount of wood raw material produced by forest enterprises legally and by forest villagers illegally has exceeded the potential capacity of the forest. According to the research related to Macka and other Turkish state forests, the state forests have been decreasing day by day. This is because the amount of wood raw material taken from the forests has exceeded the production potential of the forest. That study concluded that the Macka and other Turkish forests will be exhausted after 64 and 67 years, respectively. This study also examined both establishing and exploiting energy forests near the forest villages and producing fuel briquettes manufactured using the residues of agriculture, forestry, and stock breeding to diminish the demand for illegal fuel wood cutting from the state forests.

  8. Climate VISION: Private Sector Initiatives: Forest Products:...

    Office of Scientific and Technical Information (OSTI)

    PDF documents. Download Acrobat Reader. Forest Products Case Studies Advanced Quality Control System for the Thermomechanical Pulping Process Improves Quality and Reduces...

  9. Climate VISION: Private Sector Initiatives: Forest Products:...

    Office of Scientific and Technical Information (OSTI)

    Industry Associations American Forest & Paper Association (AF&PA) AF&PA's message is to provide significant value to member companies through outstanding performance in those areas...

  10. Climate VISION: Private Sector Initiatives: Forest Products:...

    Office of Scientific and Technical Information (OSTI)

    versions of the calculation tools are available at the NCASI web site. Estimating Product Sequestration AF&PA, again working with the International Council of Forest and Paper...

  11. 10/17/2011 Hardwood Bottomland Forests

    E-Print Network [OSTI]

    Gray, Matthew

    Management Manual Natural Flooding Infuses forest with nutrients and organic matter Flooding can slow: Drier floodplains Higher nutrient pooling Greater herbaceous biomass Lower water tables Lower

  12. Future Forests Program Plan 2013 2016

    E-Print Network [OSTI]

    for biodiversity conservation, water protection, recreational needs, climate change mitigation management of forests in a future characterized by change. Our vision; · Communication of ne

  13. Climate VISION: Private Sector Initiatives: Forest Products

    Office of Scientific and Technical Information (OSTI)

    Forest & Paper Association (AF&PA) supports the Climate VISION initiative to address climate change through enhanced research in technology and science, incentives, and...

  14. The European Forest Institute and the Finnish Forest Research Institute: The supply of woody biomass from the forests in the EU can be

    E-Print Network [OSTI]

    biomass from the forests in the EU can be significantly increased The supply of woody biomass from and recycled wood) for the 27 EU member states. As with woody biomass from forests, the supply of woody biomassThe European Forest Institute and the Finnish Forest Research Institute: The supply of woody

  15. atlantic forest landscape: Topics by E-print Network

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

    of pub- lic preferences, park Standiford, Richard B. 8 Forests and landscape UK Forestry Standard Guidelines Renewable Energy Websites Summary: for sustainable forest...

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

    Office of Environmental Management (EM)

    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...

  17. amazonian forest regrowth: Topics by E-print Network

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

    mortality, tropical forest, vegetation between remotely-sensed indices and forest inventory data on tree mortality. There were differences Malhi, Yadvinder 2 Plant species...

  18. amazonian forest french: Topics by E-print Network

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

    mortality, tropical forest, vegetation between remotely-sensed indices and forest inventory data on tree mortality. There were differences Malhi, Yadvinder 3 Effects of...

  19. amazonian forest culture: Topics by E-print Network

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

    mortality, tropical forest, vegetation between remotely-sensed indices and forest inventory data on tree mortality. There were differences Malhi, Yadvinder 3 Effects of...

  20. amazonian forests implications: Topics by E-print Network

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

    mortality, tropical forest, vegetation between remotely-sensed indices and forest inventory data on tree mortality. There were differences Malhi, Yadvinder 3 Effects of...

  1. area determines forest: Topics by E-print Network

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

    has been inadequate to accurately determine forest carbon stocks, much less the effects logging is known to be widespread, the exact areas of tropical forest subject to logging...

  2. amazon forest biomass: Topics by E-print Network

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

    such as wind, solar - and biomass. Part of Our Rural Economy - forest product companies now can 162 Fuel to Burn: Economics of Converting Forest Environmental Sciences...

  3. High Tonnage Forest Biomass Production Systems from Southern...

    Energy Savers [EERE]

    High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations This...

  4. Regulation and Moral Hazard in Forest Concessions in Brazil

    E-Print Network [OSTI]

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

    2012-01-01T23:59:59.000Z

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

  5. 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...

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

    Open Energy Info (EERE)

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

  7. Forest Carbon and Biomass Energy - LCA Issues and Challenges...

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

    Forest Carbon and Biomass Energy - LCA Issues and Challenges Forest Carbon and Biomass Energy - LCA Issues and Challenges Breakout Session 2D-Building Market Confidence and...

  8. Forest Carbon - Sustaining an Important Climate Service: Roles...

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

    Forest Carbon - Sustaining an Important Climate Service: Roles of Biomass Use and Markets Forest Carbon - Sustaining an Important Climate Service: Roles of Biomass Use and Markets...

  9. 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...

  10. Changing national forest values: A content analysis. Forest Service research paper

    SciTech Connect (OSTI)

    Bengston, D.N.; Xu, Z.

    1995-11-01T23:59:59.000Z

    This evolution of forest values is currently being widely discussed and debated in the forestry community. It is often claimed that a fundamental shift in forest values has taken place in recent decades. Gordon argued that a shift in public values is part of the explanation for the declining influence of the multiple-use sustained-yield paradigm of forest management. It is increasingly recognized that the values people hold about forest ecosystems are an important part of the social underpinning of ecosystem management, the emerging forest management paradigm. In either case, values play a critical role in identifying ecosystem management goals, setting the context for decisionmaking, and guiding our choices.

  11. Forest Research Annual Report and Accounts

    E-Print Network [OSTI]

    , comprising a total value of £1.4 billion (2 billion), the bulk of which is produced by European forest tree stock in an inactive condition for extended periods, and to ensure plant quality where supply. #12;Forest Research Annual Report and Accounts 2004­2005 41 Assessing seedling quality Despite

  12. Colorado Statewide Forest Resource Assessment and Strategy

    E-Print Network [OSTI]

    Colorado Statewide Forest Resource Assessment and Strategy www.csfs.colostate.edu Colorado Forest resource assessments had to be completed by June 2010 ­ required to receive S&PF funds in the future (2008;Resource Assessment and Strategy Partners Resource Assessment and Strategy Partners Colorado Division

  13. Climate change cripples forests October 1, 2012

    E-Print Network [OSTI]

    - 1 - Climate change cripples forests October 1, 2012 Southwestern US trees face rising drought, and several other partner organizations. 3:01 Tree Death Study's Climate Change Connection Described in a paper published in Nature Climate Change this week, "Temperature as a potent driver of regional forest

  14. Functional Differential Equations in Sustainable Forest Harvesting

    E-Print Network [OSTI]

    Garca, Oscar

    regulation. The sustainability of harvesting a given constant volume in a simplified forest model is studied regulation model . . . . . . . . . . . . . . 17 5.2 A different discretization) Frederiksberg, Denmark Abstract This article deals with the dynamics of the volume control method in forest

  15. Canada's National Forest Inventory An Interagency Collaboration

    E-Print Network [OSTI]

    Canada's National Forest Inventory An Interagency Collaboration Mark Gillis and Michael Brady: · Timber supply analysis · Management unit planning Management Inventory #12;· Canada's NFI-2001 ­ NFI 2006... National Inventory #12;Canada's National Forest Inventory (1976-2001) ­ compilation

  16. PLANAR MEMS SUPERCAPACITOR USING CARBON NANOTUBE FORESTS

    E-Print Network [OSTI]

    Lin, Liwei

    PLANAR MEMS SUPERCAPACITOR USING CARBON NANOTUBE FORESTS Y.Q. Jiang, Q. Zhou, and L. Lin Mechanical ABSTRACT Planar micro supercapacitors utilizing vertically aligned carbon nanotube (CNT) forests and very robust cycling stability. As such, we believe these planar MEMS supercapacitors could

  17. ORIGINAL PAPER Contribution of forest management artefacts

    E-Print Network [OSTI]

    Boyer, Edmond

    ORIGINAL PAPER Contribution of forest management artefacts to plant diversity at a forest scale.3% were within 4 m of an artefact and 8.4% were located on an artefact. The artefact contribution to total included or not in the artefact contribution. Road verges were the least frequent artefacts but provided

  18. 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

    2010-03-03T23:59:59.000Z

    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.

  19. Stennis Space Center Use of MODIS Forest Monitoring Products in

    E-Print Network [OSTI]

    Hargrove, William W.

    of MODIS Forest Monitoring Products in Developing a Forest Threat Early Warning System Stennis Space Center Prototypical Early Warning System (EWS) results Posting of NRT results on-line for use by USFS Forest Monitoring Products in Developing a Forest Threat Early Warning System Stennis Space Center

  20. Forest inventory Charles T. Scott & Jeffrey H. Gove

    E-Print Network [OSTI]

    Forest inventory Charles T. Scott & Jeffrey H. Gove Volume 2, pp 814­820 in Encyclopedia, Chichester, 2002 #12;Forest inventory Forest inventory is an accounting of trees and their related by a comprehensive survey of all households in the country. Similarly, forest inventories seek to enumerate

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

    E-Print Network [OSTI]

    Wright, Lance Cole

    1996-01-01T23:59:59.000Z

    generator cross section looking upstream: l. Upper wall, 2. Lower wall, 3. Side wall, 4 Timing belt pulley, 5. Rotating disk, 6. 2. 0 mm diameter cylindrical rod. Test Section: 1. Traversing system, 2. Nozzle, 3. Wake generator, 4. Electric motor, 5...-dimensional mean velocity at different s/s. locations on the heat transfer plate for 0= 0. 0 (0 rods). 39 41 43 Figure 13. Figure 14. Figure 15. Figure 16. Non-dimensional mean velocity at different s/s, locations on the heat transfer plate for Q= 1. 033...

  3. THE SOUTHWEST ECOLOGICAL RESTORATION INSTITUTES In 2004, the Southwest Forest Health and Wildfire Prevention Act established institutes in Arizona, Colorado, and New Mexico for

    E-Print Network [OSTI]

    Prevention Act established institutes in Arizona, Colorado, and New Mexico for the purpose of ensuring Institute (ERI) at Northern Arizona University in Flagstaff, Arizona New Mexico Forest & Watershed Restoration Institute (NMFWRI) at New Mexico Highlands University in Las Vegas, New Mexico. The SWERI

  4. WHY STUDY FORESTRY AT THE UNIVERSITY OF MAINE? UMaine has the longest continuously accredited

    E-Print Network [OSTI]

    Thomas, Andrew

    WHY STUDY FORESTRY AT THE UNIVERSITY OF MAINE? UMaine has the longest continuously accredited professional Forestry Program in the United States. Maine has more forests than the rest of New England for research and field experience. e Forestry Program at UMaine immerses our students in forest ecosystem

  5. 31 October 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    of the materials from the forests through the supply chain. Brian Condon, the wood procurement manager for Bio pointed out they have foresters working every day making sure the biomass plant is maintaining31 October 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR

  6. Impacts of disturbance initiated by road construction in a subtropical cloud forest in the Luquillo Experimental Forest, Puerto Rico

    E-Print Network [OSTI]

    Experimental Forest, Puerto Rico Lydia P. Olandera,* , F.N Scatenab , Whendee L. Silverc a Department Forestry, USDA Forest Service, Call Box 25000, Rio Piedras, Puerto Rico, 00928-2500, USA c Ecosystem tropical forests, were evaluated in the subtropical cloud forests of Puerto Rico. The vegetation, soil

  7. Above- and below-ground Litter Manipulation: Effect on Retention and Release of DOC, DON and DIN in the Sikfokut Forest, Hungary

    E-Print Network [OSTI]

    Evetts, Elizabeth A.; Peterson, Jacqueline A.

    2009-09-30T23:59:59.000Z

    ABOVE- AND BELOW-GROUND LITTER MANIPULATION: EFFECT ON RETENTION AND RELEASE OF DOC, DON AND DIN IN THE SIKFOKUT FOREST, HUNGARY A Senior Scholars Thesis by ELIZABETH A. EVETTS Submitted to the Office...: EFFECT ON RETENTION AND RELEASE OF DOC, DON AND DIN IN THE SIKFOKUT FOREST, HUNGARY A Senior Scholars Thesis by ELIZABETH A. EVETTS Submitted to the Office of Undergraduate Research Texas A&M University in partial...

  8. The use of logistic regression to model the probability of oak wilt occurrence in the Texas hill country using forest stand and site characteristics

    E-Print Network [OSTI]

    Dignum, David Rory

    1988-01-01T23:59:59.000Z

    THE USE OF LOGISTIC REGRESSION TO MODEL THE PROBABILITY OF OAK MILT OCCURRENCE IN THE TEXAS HILL COUNTRY USING FOREST STAND AND SITE CHARACTERISTICS A Thesis by DAVID RORY DIGNUM Submitted to the Graduate College of Texas Afdi University... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1988 Maj or Subj cot: Forestry THE USE OF LOGISTIC REGRESSION TO MODEL THE PROBABILITY OF OAK WILT OCCURRENCE IN THE TEXAS HILL COUNTRY USING FOREST STAND AND SITE...

  9. The use of logistic regression to model the probability of oak wilt occurrence in the Texas hill country using forest stand and site characteristics

    E-Print Network [OSTI]

    Dignum, David Rory

    1988-01-01T23:59:59.000Z

    THE USE OF LOGISTIC REGRESSION TO MODEL THE PROBABILITY OF OAK MILT OCCURRENCE IN THE TEXAS HILL COUNTRY USING FOREST STAND AND SITE CHARACTERISTICS A Thesis by DAVID RORY DIGNUM Submitted to the Graduate College of Texas Afdi University... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1988 Maj or Subj cot: Forestry THE USE OF LOGISTIC REGRESSION TO MODEL THE PROBABILITY OF OAK WILT OCCURRENCE IN THE TEXAS HILL COUNTRY USING FOREST STAND AND SITE...

  10. 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.

    2012-11-06T23:59:59.000Z

    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.

  11. Kenya's forests: going up in smoke

    SciTech Connect (OSTI)

    Burnett, G.W.

    1985-01-01T23:59:59.000Z

    Closed forest and commercially valuable woodland account for at most 11,406 square miles in Kenya (about 5.2% of the country's area). Plantation forests, mainly of exotic conifers, cover more than 550 square miles, and it is hoped that exotic plantation species will entirely replace dependence on the indigenous forests for pulp, sawn timber and other roundwood. However, reliance on charcoal as a fuel has led to widespread deforestation, particularly along highways and within 20 miles of towns and major villages. Deforestation is likely to increase with increasing population pressure.

  12. 188 Forest health surveillance in Victoria Australian Forestry 2008 Vol. 71 No. 3 pp. 188195

    E-Print Network [OSTI]

    available for sustainable timber production (VictorianAssociation of Forest Industries 2008). Native forestForests. While several companies manage plantations in Victoria, HVP Plantations (formerly Hancock Victoria

  13. E-Print Network 3.0 - accelerating forest fire Sample Search...

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

    large areas of the Pacific Summary: change, nutrition and sustainability, fire effects, restoration, and forest-stream linkages... forests. Many dense, young forests were...

  14. Dispersive to nondispersive transition and phase velocity transient for travelling waves in plane wake and channel flows

    E-Print Network [OSTI]

    De Santi, Francesca; Tordella, Daniela

    2015-01-01T23:59:59.000Z

    By varying the wave number over a large interval of values and by keeping the Reynolds number constant, we analyze the phase and group velocity of linear three-dimensional traveling waves in two sheared flows, the plane channel and wake flows. Evidences are given about the possible compresence of dispersive and nondispersive effects which are associated to the long and short ranges of wavelength, respectively. We solve the Orr-Sommerfeld and Squire eigenvalue problem and observe the least stable mode. At low wave numbers, a dispersive behavior amenable to the least stable eigenmodes belonging to the left branch of the eigenvalue spectrum is observed. By rising the wave number, in both flows, we observe a sharp dispersive to nondispersive transition which is located at a nondimensional wave number of the order of the unity. Beyond the transition, the asymptotically dominant mode belongs to the right branch of the spectrum. The Reynolds number was varied in the ranges 20-100, 1000-8000 for the wake and channel ...

  15. 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

    2013-01-01T23:59:59.000Z

    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.

  16. FOR 6005 Conservation Behavior University of Florida

    E-Print Network [OSTI]

    Florida, University of

    FOR 6005 Conservation Behavior University of Florida School of Forest Resources and Conservation, 846-0878, 347 NZ Hall, mcmonroe@ufl.edu Office Hours: Wednesday 9-12 and on request Conservation and resolving environmental challenges. This course will explore what we know about human behavior and apply

  17. Forest and Soil Ecosystem Services University of Florida

    E-Print Network [OSTI]

    Ma, Lena

    . These services include carbon sequestration, biodiversity, stabilization of hydrologic cycles, removal of air filtering, plant remediation) b. Air quality c. Nutrient Cycling d. Carbon Sequestration Topic 4

  18. University of Florida School of Forest Resources and Conservation

    E-Print Network [OSTI]

    Watson, Craig A.

    research can play to improve the management of ecotourism in natural areas; Nature-based recreation ecotourism in protected natural and developed landscapes. Course Materials Readings will be found on the E to an agency or #12;organization that manages natural areas for recreation/ecotourism (you will need to know

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

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA /Ml'.Solar Thermal Solar ThermalJul 13 1 2Monroe

  20. Colorado Statewide Forest Products Industry Profile

    E-Print Network [OSTI]

    Colorado Statewide Forest Products Industry Profile Economic Sustainability and Ecological and Comparisons Production and Processing Sales and Markets Economic and Ecological Contributions Sawmills 1/4 for Roundwood (post and pole, vigas, house logs), furniture, excelsior etc. Sawmill

  1. A Yale Forest Forum Series Publication

    E-Print Network [OSTI]

    Jarvis The Home Depot Michael Jenkins Forest Trends Aban Kabraji The World Conservation Union (IUCN) Eva Mary Tyrrell Executive Director Barbara Ruth Program Coordinator Mark Ashton Professor of Silviculture

  2. Geospatial Analysis School of Forest Resources &

    E-Print Network [OSTI]

    Watson, Craig A.

    Geospatial Analysis GIS 4121 School of Forest Resources & Conservation Geomatics Program _______________________________________________________________________________________ 1 GIS 4121 Geospatial Analysis INSTRUCTORS: Dr. Hartwig Henry Hochmair (FLREC Fort Lauderdale) Dr MATERIALS: de Smith, MJ, Goodchild, MF, & Longley, PA (2010). Geospatial Analysis (3rd ed.). Leicester

  3. Producing Pine Straw in East Texas Forests

    E-Print Network [OSTI]

    Taylor, Eric; Foster, C. Darwin

    2004-01-09T23:59:59.000Z

    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....

  4. BIODIVERSITY AND DEVELOPMENT: EUCALYPTUS & FOREST LAW

    E-Print Network [OSTI]

    Gray, Matthew

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

  5. Robust scheduling in forest operations planning

    E-Print Network [OSTI]

    Lim, Lui Cheng

    2008-01-01T23:59:59.000Z

    Forest operations planning is a complex decision process which considers multiple objectives on the strategic, tactical and operational horizons. Decisions such as where to harvest and in what order over different time ...

  6. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    Standiford, Richard B.

    of Special Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Conditions Affecting Viewing, and professor and chairman of the University's Department of Landscape Architecture, at Berkeley. He earned eneralizations about esthetics and protection of "natural beauty" are of small help to the land manager. He needs

  7. 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

  8. 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

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

    SciTech Connect (OSTI)

    Jay L. Hirshfield

    2012-04-12T23:59:59.000Z

    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.

  10. Our Forests in the [Water] Balance Water: Brought by a forest near you

    E-Print Network [OSTI]

    the amount and type of precipitation that falls across the western United States. Research shows a trend1 Our Forests in the [Water] Balance Water: Brought by a forest near you Water is a crucial, industry, energy, recreation, and the natural resources we manage and care about. While most citizens

  11. Managing Sierra Nevada Forests Appendix: Examples of Forest Structures That May

    E-Print Network [OSTI]

    Standiford, Richard B.

    these following Bull et al.'s (1997)3 focus on five conditions: live trees with decay, hollows or brooms, snags, and brush. 1 Forester, U.S. Department of Agriculture, Forest Service, Pacific Southwest Region, Eldorado--Live tree with hollow structure. The tree has an old dead top with cavity nests and a new healthy top

  12. 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 Tapajos National Forest, Brazil PaulJN, Scotland b Instituto do Homem e Meio Ambiente da Amazo^nia (IMAZON), CEP 66060-160 Belem, Brazil c Projeto Dendrogene, EMBRAPA, CEP 66095-100 Belem, Brazil Received 23 November 2005; received

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

    E-Print Network [OSTI]

    New Hampshire, University of

    forests and trees are to our state's economy. While the statistics in this publication focus on economic Acknowledgements: Funding for this report was provided by the Public Service Company of NH and the U.S. Endowment products manufacturing, pulp and paper manufacturing, wood energy, and the forest-based recreational

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

    E-Print Network [OSTI]

    Wu, Qinglin

    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

  15. A Guide for Virginia Forest Landowners Jennifer L. Gagnon, Coordinator, Virginia Forest Landowner Education Program,

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Education Program, Forest Resources and Environmental Conservation, Virginia Tech Introduction As a private of timber harvest planning and how to work with professional foresters and natu- ral resource management final management decisions. Resources for learning more about any of the topics covered are available

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

    E-Print Network [OSTI]

    Lpez-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 ...

  17. What's Happening in Colorado's Aspen Forests? Gradual, longterm changes and recent widespread death of aspen trees

    E-Print Network [OSTI]

    What's Happening in Colorado's Aspen Forests? Gradual, longterm changes and recent widespread death of aspen trees The normal development of forests includes changes, with most trees forests experience fire, insect outbreaks, severe winds, or major droughts. All the aspen forests

  18. Expanding Research Horizons: USDA Forest Service Initiative for Developing Recycled Paper Technology

    E-Print Network [OSTI]

    Abubakr, Said

    Forest Service research on recycling is being led by scientists at the Forest Products Laboratory (FPLExpanding Research Horizons: USDA Forest Service Initiative for Developing Recycled Paper Technology Theodore L. Laufenberg, Program Manager Forest Products Conservation and Recycling Said Abubakr

  19. Resources to Help Cope in Times of Crisis List created by the MIT Work-Life Center to support the MIT community in the wake of recent violent

    E-Print Network [OSTI]

    Reif, Rafael

    Resources to Help Cope in Times of Crisis List created by the MIT Work-Life Center to support the MIT community in the wake of recent violent events, April 2013. MIT RESOURCES Human Resources MIT; daily living. Human Resources Officers provide support and guidance for managers, supervisors

  20. PLASMA WAKE EXCITATION BY LASERS OR PARTICLE BEAMS C. B. Schroeder, E. Esarey, C. Benedetti, Cs. Toth, C. G. R. Geddes, W. P. Leemans

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    recent experimental success using lasers and particle beam drivers for plasma acceler- ationPLASMA WAKE EXCITATION BY LASERS OR PARTICLE BEAMS C. B. Schroeder, E. Esarey, C. Benedetti, Cs. T be driven by the ponderomo- tive force of an intense laser or the space-charge force of a charged particle

  1. 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

  2. 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

  3. Forest cover change and illegal logging in the Ukrainian Carpathians in the transition period from 1988 to 2007

    E-Print Network [OSTI]

    Vermont, University of

    Forest cover change and illegal logging in the Ukrainian Carpathians in the transition period from 2009 Keywords: Forest harvesting Illegal logging Forest disturbance Landsat Support vector machines Ukraine Carpathians Forest inventory data Forest resource assessment Post-socialist transition Illegal

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

    SciTech Connect (OSTI)

    Dail, David Bryan [University of Maine

    2012-08-02T23:59:59.000Z

    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.

  5. LIDAR measurements of wind turbine wake dyn_amics and comparison with an engineering model

    E-Print Network [OSTI]

    . Madsen, K. Thomsen, and T.J. Larsen. VVllke Ineandering - II pragmatic approach. Wind Energy. Accepted Endovved Chair of Wind Energy University of Stuttgart, Germany 2 Ris0 DTU National Laboratory Technical. In European Wind Energy Conference {711d Exhibitioll /lvIiloll Itoly. EWEC, May 2007. [2J C.C. Larsen, H. Aa

  6. 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.

    2014-12-01T23:59:59.000Z

    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.

  7. PACIFIC SOUTHWESTt (-A FOREST SERVICE

    E-Print Network [OSTI]

    Standiford, Richard B.

    of the National Resources Management Corporation, Lafayette, Calif. A native of Ellenville, N.Y., he earned., he earned three degrees at the University of California, Berkeley: a bachelor's in forestry (1959- variate analysis. To assess their value as predictors, fluctuations in growth of white fir (Abies concolor

  8. Pacific Southwest Forest and Range

    E-Print Network [OSTI]

    Standiford, Richard B.

    . MCKETTA is an economist with the College of Forestry, Wildlife, and Range Sciences, University of Idaho has been developed for determining the cost of Fire Management Inputs (FMls)-the direct frreline costs, economic costs, fire economics, suppression costs, Fire Economics Evaluation System (FEES

  9. atlantic forest area: Topics by E-print Network

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

    techniques to forest group and basal area mapping using satellite imagery and forest inventory data CiteSeer Summary: Accurate, current, and cost-effective fire fuel data are...

  10. Forest Plan A summary of a forum explor-

    E-Print Network [OSTI]

    Farmland Trust Philip Janik USDA Forest Service Ron Jarvis The Home Depot Thomas Jorling International Oliver Director Gary Dunning Executive Director Mark Ashton Professor of Silviculture and Forest Ecology

  11. acuminata forests affected: Topics by E-print Network

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

    StationRICULTUR , CALIFORN FOREST SERVICE. U.S. DEPARTMENT OF AG P.O. BOX 245, BERKELEY LOGGING SLASH: its breakdown and decay at two forests in northern California Willis W....

  12. austrocedrus chilensis forests: Topics by E-print Network

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

    StationRICULTUR , CALIFORN FOREST SERVICE. U.S. DEPARTMENT OF AG P.O. BOX 245, BERKELEY LOGGING SLASH: its breakdown and decay at two forests in northern California Willis W....

  13. argentinean yungas forests: Topics by E-print Network

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

    StationRICULTUR , CALIFORN FOREST SERVICE. U.S. DEPARTMENT OF AG P.O. BOX 245, BERKELEY LOGGING SLASH: its breakdown and decay at two forests in northern California Willis W....

  14. alnus acuminata forests: Topics by E-print Network

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

    StationRICULTUR , CALIFORN FOREST SERVICE. U.S. DEPARTMENT OF AG P.O. BOX 245, BERKELEY LOGGING SLASH: its breakdown and decay at two forests in northern California Willis W....

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

    Energy Savers [EERE]

    and Forest Service Consider Large-Scale Geothermal Leasing BLM and Forest Service Consider Large-Scale Geothermal Leasing June 18, 2008 - 4:29pm Addthis In an effort to encourage...

  16. 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

  17. People and Forests: a case study from Benin, West Africa

    E-Print Network [OSTI]

    Kraus, Erika Beth

    2012-05-31T23:59:59.000Z

    The purpose of this work is to demonstrate how sacred forests in Benin, West Africa, contribute to forest conservation. Local use of natural resources is well-practiced in maintaining wooded space; the same use of those ...

  18. Evalua&ng Forest Biomaterials with Environmental Life Cycle Assessment

    E-Print Network [OSTI]

    : Environmental Life cycle assessment (LCA) to understand impacts of forest productsEvalua&ng Forest Biomaterials with Environmental Life Cycle Assessment Hosted in the industrial sphere, with addiKonal effects 6 #12;Life Cycle Assessment Method

  19. In Search of Sustainable (Urban) Forest Management in Canada

    E-Print Network [OSTI]

    ), 1981 Research associate, EIA, 1981-83 PhD, forest management and EIA, 1983-86 Research scholar

  20. 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.

    2011-01-01T23:59:59.000Z

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

  1. Institutional change in the forest sector : the Russian experience

    E-Print Network [OSTI]

    Ulybina, Olga

    of corporate responsibility, forest certification, model forests, foreign forest management practices and visions of sustainability. The results of both state and non-state activities aimed at reforming the forest sector are debatable and yet to be seen... ecological crisis of his day, namely the problem of soil fertility within capitalist agriculture, the antagonism of town and country, and the necessity of ecological sustainability. Idealist Structuralism Similarly to materialist structuralists, Emile...

  2. Preordered forests, packed words and contraction algebras Anthony Mansuy

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    an increasing condition, we obtain the Hopf subalgebra of heap-ordered forests Hho (see [FU10, GL90]). Moreover

  3. International Symposium "The evaluation of forest Policies and Programmes"

    E-Print Network [OSTI]

    Pettenella, Davide

    for the internalisation of Carbon sequestration function Forest management (art. 3.4): - after Decision 11 COP 7: 15

  4. DOE's NREL and LLNL team with NOAA and University of Colorado...

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

    atmospheric effects such as wind shifts and wake behavior can be critical to advancing turbine design and improving their siting within wind farms. While wakes have been studied...

  5. Industry and forest wetlands: Cooperative research initiatives

    SciTech Connect (OSTI)

    Shepard, J.P. (National Council of the Paper Industry for Air and Stream Improvement, Gainesville, FL (United States)); Lucier, A.A. (National Council of the Paper Industry for Air and Stream Improvement, New York, NY (United States)); Haines, L.W. (International Paper, Bainbridge, GA (United States))

    1993-05-01T23:59:59.000Z

    In 1989 the forest products industry responded to a challenge of the National Wetlands Policy Forum to initiate a cooperative research program on forest wetlands management organized through the National Council of the Paper Industry for Air and Stream Improvement (NCASI). The objective is to determine how forest landowners can manage wetlands for timber production while protecting other wetland functions such as flood storage, water purification, and food chain/wildlife habitat support. Studies supported by the NCASI in 9 states are summarized. Technical support on wetland regulatory issues to member companies is part of the research program. Since guidelines for recognizing wetlands for regulatory proposed have changed frequently, the NCASI has recommend an explicit link between wetland delineation and a classification system that considers difference among wetland types in vegetation, soils, hydrology, appearance, landscape position, and other factors. 16 refs.

  6. Principles of Forest Stewardship1 1As per the Foresters Act S.4(2)(b) "to advocate for and uphold principles of stewardship of forests, forest lands, forest resources and forest

    E-Print Network [OSTI]

    and resilience of the ecosystem. Ecological integrity refers to the wholeness of ecosystems, as well. Ecological Integrity 4 2. Information and Understanding 4 3. Forest Management Goals and Objectives 4 4 and landscape levels which maintains and protects ecosystem function, integrity and resilience. It is based upon

  7. Forest and Agricultural Sector Optimization Model (FASOM): Model structure and policy applications. Forest Service research paper

    SciTech Connect (OSTI)

    Adams, D.M.; Alig, R.J.; Callaway, J.M.; McCarl, B.A.; Winnett, S.M.

    1996-09-01T23:59:59.000Z

    The Forest and Agricultural Sector Opimization Model (FASOM) is a dynamic, nonlinear programming model of the forest and agricultural sectors in the United States. The FASOM model initially was developed to evaluate welfare and market impacts of alternative policies for sequestering carbon in trees but also has been applied to a wider range of forest and agricultural sector policy scenarios. The authors describe the model structure and give selected examples of policy applications. A summary of the data sources, input data file format, and the methods used to develop the input data files also are provided.

  8. A Current Overview of Forest Products Certification Shadia Duery

    E-Print Network [OSTI]

    manufacturing industry developed to track certified forest products from the forest through the supply chain management (Ozanne and Vlosky 1997). In addition to reducing negative perceptions by consumers in the wood manufacturing industry developed to verify certified forest products. CoC works as a control

  9. 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

  10. Thinking about efficiency of resource use in forests Dan Binkleya,*

    E-Print Network [OSTI]

    Binkley, Dan

    of forests can be described as a function of the supply of resources, the proportion of resources captured not represent those that occur at the scale of forests and years, owing to more complete biomass accounting of biomass partitioning to optimize resource capture and use. Patterns in the growth of forests, across

  11. Is Forestry Right Do you care about forests, wildlife,

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Is Forestry Right For You? · Do you care about forests, wildlife, water, wilderness interest in the future of forestry? · Do you feel there should be changes made to forest practices? · Do at www.unbc.ca/forestry BSc Natural Resources Management Forest Ecology and Management #12;Some Career

  12. WISDOM number two / page 7 IN THE FOREST

    E-Print Network [OSTI]

    Sisk, Thomas D.

    a decision support tool for land managers that met the needs of the BLM managers perfectly. The ForestERA project was in the final stages of a 2 million acre analysis of forest and fire risk management jurisdictions, they could accomplish for- est management planning to address fire risks. Luckily, the Forest

  13. 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

  14. 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

  15. FOREST FIRES AND OIL FIELDS AS PERCOLATION PHENOMENA.

    E-Print Network [OSTI]

    Reed, W.J.

    size distribution model for estimating oil reserves and for use in forest management under the `natural estimates of oil reserves, and be of use for ecosystem based forest management under the `naturalFOREST FIRES AND OIL FIELDS AS PERCOLATION PHENOMENA. William J. Reed #3; JUNE, 1999. Abstract

  16. ForestGALES A PC-based wind risk model

    E-Print Network [OSTI]

    be needed to uproot or break the tree? 3.1 What wind speed would create the force required to damageForestGALES A PC-based wind risk model for British Forests User's Guide Version 2.0 June 2004 Barry by strong winds in Britain 1.1 Historical context Previous predictive windthrow model 1.1 What does Forest

  17. ESTIMATION OF FOREST CARBON VOLUME AND VALUE IN TENNESSEE

    E-Print Network [OSTI]

    Gray, Matthew

    Acknowledgement INTRODUCTION U.S. Forest 188 Million Acres 16% carbon sequestration occurred in forest 310Carl. 2001. "The Economics of Carbon Sequestration in Agricultural Soils." Department of Agricultural of The Potential for Carbon Sequestration by Forests: Evidence from Southern Mexico." Ecological Economics 33

  18. 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, 22 June 2011 Ed.Pepke@efi.int 1 Global forest products market trends by Dr. Ed Pepke Senior Timber European Forest Institute Contents I. Introduction II. Global market drivers III. Global trade trends IV

  19. ONGOING RESEARCH PROJECTS Model of tropical forest structure and dynamics

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    ONGOING RESEARCH PROJECTS Model of tropical forest structure and dynamics There is a need canopy structure and partitions dynamic rates for a tropical forest on Barro Colorado Island (BCI structure and partitions dynamic rates in a tropical forest. In Review. Journal of Ecology. #12;PPA model

  20. SCIENCE AND FOREST CONCESSIONS Bastiaan Louman, Fernando Carrera1

    E-Print Network [OSTI]

    SUMMARY Can forest concessions be a means to conserve natural state forests? Bolivia has 10 years availability of information, however, outside assistance has been necessary. Bolivia has the longest history of concessions in Bolivia, Guatemala and Peru include the costs of forest management, slow and difficult

  1. A comparison of undiscovered oil and gas resource estimates, Los Padres National Forest in the Ventura Basin Province, California

    SciTech Connect (OSTI)

    Bird, K.J.; Valin, Z.C. [Geological Survey, Menlo Park, CA (United States); Bain, D.M. [Consultant, Daily City, CA (United States); Hopps, T.E. [Consultant, Santa Paula, CA (United States); Friehauf, J.S.F. [Forest Service, San Francisco, CA (United States)

    1995-04-01T23:59:59.000Z

    Two recent assessments of the undiscovered oil and gas resources of Los Padres National Forest lands in the Ventura Basin Province using different methodologies and personnel show remarkable coincidence of estimated resources. The 1989 U.S. Geological Survey assessment was part of a National appraisal. In the Ventura Basin Province, two separate plays were assessed and a percentage of resources from these plays was allocated to Federal lands. By this allocation, the undiscovered oil and gas resources of this part of the Los Padres National Forest are estimated to range from <10-140 MMBO (means probability 60 MMBO, million barrels of oil) and 10-250 BCFG (mean probability 110 BCFG, billion cubic feet of gas). In 1993, the U.S. Forest Service completed an oil and gas assessment of the entire 1.8 million-acre Los Padres National Forest as part of a Reasonably Foreseeable Oil and Gas Development Scenario. In those areas of the forest considered to have high potential for the occurrence of oil and gas deposits, a deposit simulation model was used. This method is based on a fundamental reservoir engineering formula in the USGS computer program, FASPU (Fast Appraisal System for Petroleum-Universal). By this method, the undiscovered oil and gas resource of this part of the Los Padres National Forest are estimated to range from 0-182 MMBO (mean probability 56 MMBO) and 9-233 BCFG (mean probability 103 BCFG). An additional 6 MMBO (mean probability) is allocated to forest lands with medium potential within this province but not to any specific prospects. The remarkable coincidence of estimate resources resulting from such different assessment methods and personnel is noteworthy and appears to provide an increased measure of confidence in the estimates.

  2. 20 March 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    / FORESTY PRODUCTS INTEREST GROUP 1 U.S. Forest Service Helps Fund Harvard Forest Green Energy Project in a recent U.S. surge in the use of this form of green energy. Since 2005, the Forest Service's woody biomass more than $1 million per year. As we look toward America's future of green energy and energy

  3. 11 September 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    supply. Biomass Power Secure is ensuring their wood supply is of high quality and environmentally the biomass is #12;11 September 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER11 September 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR

  4. 26 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    / FORESTY PRODUCTS INTEREST GROUP 1 Rothschild Biomass Plant Only Getting 10 Percent of Fuel from Forest26 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR 10 percent of its fuel from logging waste, which originally was supposed to supply nearly all

  5. 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

  6. 10 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    CENTER - FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP 2 Wood Pellets Out of 80.9 MGT of wood expected to be consumed by viable projects, wood pellet production is expected to hold the largest share at 34.2 MGT, most10 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR

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

    SciTech Connect (OSTI)

    Stith T.Gower

    2010-03-03T23:59:59.000Z

    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.

  8. Fractal images induce fractal pupil dilations and constrictions

    E-Print Network [OSTI]

    Taylor, Richard

    1 Fractal images induce fractal pupil dilations and constrictions P. Moon, J. Muday, S. Raynor, J. Schirillo Wake Forest University C. Boydston, M. S. Fairbanks, R.P. Taylor University of Oregon Fractals revealed fractal patterns in many natural and physiological processes. This article investigates pupillary

  9. GREAT PLAINS INTERSTATE FOREST FIRE COOPERATIVE

    E-Print Network [OSTI]

    GREAT PLAINS INTERSTATE FOREST FIRE COMPACT COOPERATIVE ANNUAL OPERATING PLAN 2011 #12;Great Plains are located in Appendices F through K. II. Purpose This cooperative operating plan facilitates assistance ordered through the Compact and used on joint US Federal/State fires will be considered agents

  10. Faculty of Forest Sciences Gender and Forestry

    E-Print Network [OSTI]

    Faculty of Forest Sciences Gender and Forestry - a bibliography Lillemor Lyrén Forestry Library #12;SLU Forestry Library SE-901 83 Umeå, Sweden Jan 2006 1 #12;Preface The initiative to this bibliography was taken by the IUFRO Working Party 6.28.01, Gender research in forestry. The work started in spring 2003

  11. 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

  12. VANCOUVER FOREST REGION 2100 LABIEUX ROAD

    E-Print Network [OSTI]

    , Paul Kuster and Frank Ullmann, Operations Manager. Assistance in planning and fieldwork were provided days and work on weekends and nights. Funding for this project was provided by Her Majesty the Queen, through the Vancouver Regional Office Research budget and the Squamish Forest District operational budget

  13. Forest Certification in Brazil Peter H. May

    E-Print Network [OSTI]

    Forest Certification in Brazil Peter H. May Executive Secretary, Brazilian Agroforestry Network Studies New Haven, Connecticut, USA June 10 & 11, 2004 http://www.yale.edu/forestcertification/symposium/pdfs/brazil, Economic, and Ecological Effects Brazil DRAFT PAPERS PLEASE DO NOT CITE 2 ABSTRACT This paper reviews

  14. 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

  15. 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

  16. Forest Growth Under Extensive Annual Drought

    E-Print Network [OSTI]

    Yakir, Dan

    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 aridity factor (precipitation/potential evaporation) of about 0.18. Annual received solar energy of ~7

  17. Forest Service Patrol Captains and Patrol

    E-Print Network [OSTI]

    Standiford, Richard B.

    prohibited bases apply to all programs.) Persons with disabilities who require alternative means and public property. Nationally, a successful program was characterized as one with sufficient resources of Agriculture is dedicated to the principle of multiple use management of the Nation's forest resources

  18. Establishment of a research facility for investigating the effects of unsteady inlet flow, pressure gradient and curvature on boundary layer development, wake development and heat transfer

    E-Print Network [OSTI]

    Pardivala, Darayus Noshir

    1991-01-01T23:59:59.000Z

    ESTABLISHMENT OF A RESEARCH FACILITY FOR INVESTIGATING THE EFFECTS OF UNSTEADY INLET FLOW) PRESSURE GRADIENT AND CURVATURE ON BOUNDARY LAYER DEVELOPMENT) %'AKE DEVELOPMENT AND HEAT TRANSFER A Thesis by DARAYUS NOSHIR PARDIVALA Submitted... THE EFFECTS OF UNSTEADY INLET FLOW, PRESSURE GRADIENT AND CURVATURE ON BOUNDARY LAYER DEVELOPMENT, WAKE DEVELOPMENT AND HEAT TRANSFER A Thesis by DARAYUS NOSHIR PARDIVALA Approved as to style and content by: Taher Schobeiri (Chair of Committee) Gerald...

  19. Wake Tracking and the Detection of Vortex Rings by the Canal Lateral Line of Fish Jan-Moritz P. Franosch,1

    E-Print Network [OSTI]

    van Hemmen, J. Leo

    that pass a fish later- ally [19] as well as vortex rings that are part of a von Karman vortex street [20 by the lateral-line sensors so as to enable fish to follow a vortex street. DOI: 10.1103/PhysRevLett.103Wake Tracking and the Detection of Vortex Rings by the Canal Lateral Line of Fish Jan-Moritz P

  20. Comparison of AVHRR classification and aerial photography interpretation for estimation of forest area. Forest Service research paper

    SciTech Connect (OSTI)

    Lannom, K.B.; Evans, D.L.; Zhu, Z.

    1995-09-01T23:59:59.000Z

    The USDA Forest Service Southern Forest Experiment Station`s Forest Inventory and Analysis (SO-FIA) unit uses a dot count method to estimate the percentage of forest area in counties or parishes from aerial photographs. The research reported in this paper was designed to determine whether Advanced Very High Resolution Radiometer (AVHRR) data could be used to estimate forest area at the county or parish level. For this study, AVHRR data for three parishes in central Louisiana were extracted from a 1991 AVHRR forest type map of the United States. Photo interpretation data were obtained from a digital mosaic of aerial photography of the parishes. Forest area estimates obtained by means of photo interpretation did not differ significantly from those obtained by analyzing AVHRR data.

  1. ResearchMICHIGAN TECHNOLOGICAL UNIVERSITY > 2012 The comeback ooze

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY > 2012 Sanctuary in paradise Rare Hawaiian birds find refuge in tiny island forests, Sarah Bird. Send your comments to the editor at mlgoodri@mtu.edu. Learn more about research at Michigan for bigger people--by design Rising sun A new dawn for solar power 16 19 20 3RESE ARCH 2012 | Michigan

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

    SciTech Connect (OSTI)

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

    1981-07-01T23:59:59.000Z

    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.

  3. LIDAR nleasurenlents of \\vind turbine wake Ineanderi ng J)l'j',lillllL'nl ul \\kcl1~lI1i('al Engineering. Fluid \\kchanic~. \\ills Koppcls /l.ik. DTU-I)uildll1,lC ..jil3.ll'llJ:1il':i1

    E-Print Network [OSTI]

    W wind turbine [1]. The wake dynamics was resol\\cd using a LIDAR based wind speed scanning system. RecentLIDAR nleasurenlents of \\vind turbine wake Ineanderi ng J)l'j',lillllL'nl ul \\kcl1~lI1i of identifying the wake characteristics associated \\\\ith a Ltrge KUt1l/2M\\V wino turbine. The turbine in question

  4. Regulating forest practices in Texas: a problem analysis

    E-Print Network [OSTI]

    Dreesen, Alan D

    1977-01-01T23:59:59.000Z

    practices law. Attitudes about the best administrative structure. . . Could a forest practices act help meet future wood needs?. Miscellaneous Section. Su~mary. 30 30 31 34 42 44 52 55 56 56 57 60 74 75 79 Chapter V. Conclusions...) National Forest Products Association (NFPA) (Industry) Southern Forest Products Association (SFPA) (Industry) Ovens-Illinois Corporation (Industry) Louisiana-Pacific Corporation (Industry) Champion International Corporation (Industry) Kirby Lumber...

  5. Vincennes University

    E-Print Network [OSTI]

    Julie Napier

    2015-04-22T23:59:59.000Z

    150 N. University Street. West Lafayette IN, 47907-2067 ... Highest degree from an accredited college/university ... ______ Library professional staff. ______...

  6. anagin Forests because Carbon Matters: In grating Energy, Products, and Land

    E-Print Network [OSTI]

    Fried, Jeremy S.

    -have the potential 10 increase biomass supply. Unlike metals, concrete, and plastic, forest products store carbon sources. Expanding forest biomass use for biofuels and energy generation will competeanagin Forests because Carbon Matters: In grating Energy, Products, and Land Management Policy

  7. QUALIFICATIONS AND REQUIREMENTS Job Title: Dean of the School of Forest Resources and Environmental Science

    E-Print Network [OSTI]

    Honrath, Richard E.

    , environmental sciences, forestry, forest biotechnology, and natural resources education and research statewide/or EXPERIENCE: REQUIRED: Ph.D. in ecology, environmental science, forestry, forest biotechnology, natural and Environmental Science Department: School of Forest Resources and Environmental Science Salary Range

  8. Estimating regional forest cover in East Texas using Enhanced Thematic Mapper (ETM+) data

    E-Print Network [OSTI]

    the 1930s, is used by state forest agencies, private timber companies and individual foresters for planning and timber resources in the United States as part of its Forest Inventory and Analysis (FIA) program (USFS

  9. Appendix B Colorado Statewide Forest Resource Assessment Data Sources and Methods

    E-Print Network [OSTI]

    Mountain Poor-Site Lodgepole Pine Forest Aspen o 2011 Rocky Mountain Aspen Forest and Woodland o 2061 Intermountain Basins Aspen-Mixed Conifer Forest and Woodland Mixed Conifer o 2051 Southern Rocky Mountain Dry

  10. The potential for trickle up : how local actors' experiments influence national forest policy planning

    E-Print Network [OSTI]

    Blockhus, Jill M

    2006-01-01T23:59:59.000Z

    The loss of forests in Vietnam encouraged central government policy makers to consider new ways to manage forest resources. A major forest policy shift -- moving away from state-led management -- began in earnest in pilot ...

  11. Borax Lake Pattern Assemblages on the Shasta-Trinity National Forests, North-Central California

    E-Print Network [OSTI]

    Sundahl, Elaine; Henn, Winfield

    1993-01-01T23:59:59.000Z

    Assemblages on the Shasta-Trinity National Forests, North-I E L D H E N N , Shasta-Trinity National Forests, Redding,CA 96001. X HE Shasta-Trinity National Forests curve around

  12. Moving from Status to Trends: Forest Inventory and Analysis Symposium 2012 161GTR-NRS-P-105 TECHNICAL ASPECTS OF THE FOREST CARBON INVENTORY

    E-Print Network [OSTI]

    Moving from Status to Trends: Forest Inventory and Analysis Symposium 2012 161GTR-NRS-P-105 TECHNICAL ASPECTS OF THE FOREST CARBON INVENTORY OF THE UNITED STATES: RECENT PAST AND NEAR FUTURE Abstract.--The Forest Inventory and Analysis program of the U.S. Forest Service has explicitly assumed

  13. adjacent mangrove forest: Topics by E-print Network

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

    water flux circulated Paris-Sud XI, Universit de 4 Ecological effects of small-scale cutting of Philippine mangrove forests Environmental Sciences and Ecology Websites...

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

    E-Print Network [OSTI]

    Stewart, William C; Sharma, Benktesh D

    2015-01-01T23:59:59.000Z

    forests provide more carbon sequestration benefits than let-the relative carbon sequestration benefits of let-growlife cycle carbon sequestration benefits, averaged over 120,

  15. 5to CONGRESO FORESTAL DE CUBA "BOSQUES PARA LAS PERSONAS"

    E-Print Network [OSTI]

    Schierup, Mikkel Heide

    .............................................................. 29 COMISI?N 7. Protección forestal y manejo de plagas...... 31 COMISI?N 8. Ordenación e Inventario de

  16. assess forest carbon: Topics by E-print Network

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

    Forestry, baseline, carbon, climate change mitigation, forestry, quality assurance, sequestration. FCRP013FC 6 Carbon Cycling in Tropical and Boreal Forests Environmental...

  17. acid forest soils: Topics by E-print Network

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

    Forest Succession Biology and Medicine Websites Summary: K7L 3N6, Canada ABSTRACT Carbon sequestration in soils that have previously beendepletedoforganic the soil carbon...

  18. achieving forest carbon: Topics by E-print Network

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

    Valatin, G. (2011). Forests and carbon: a review of additionality. Forestry, baseline, carbon, climate change mitigation, forestry, quality assurance, sequestration. FCRP013FC...

  19. acid forest soil: Topics by E-print Network

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

    Forest Succession Biology and Medicine Websites Summary: K7L 3N6, Canada ABSTRACT Carbon sequestration in soils that have previously beendepletedoforganic the soil carbon...

  20. acid deposition forest: Topics by E-print Network

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

    for 400 metres height above ground level) to scale the contributions from different wind directions to total deposition at any selected receptor site 38 105USDA Forest...

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

    Open Energy Info (EERE)

    Forest Management Under the New Climate Change Agreement-A Case Study in Cambodia AgencyCompany Organization United States Agency for International Development, Global...

  2. atlantic forest reserve: Topics by E-print Network

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

    Archive Summary: An investigation of the effects of commercial mechanised selective logging on rain forest vegetation and mammals, was undertaken in the Lope Reserve, central...

  3. amazon forest results: Topics by E-print Network

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

    there has been significant degradation in forest cover over recent decades as a result of logging, conversion to crop, plantation, and pasture land, or disasters (natural or man...

  4. adjacent natural forest: Topics by E-print Network

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

    sectors?" Louisiana's Forests Louisiana ranks 10th nationally in total production of sawn timber compared Associate Dr. Richard P. Vlosky Assistant Professor December 19. 1995...

  5. Regulation and Moral Hazard in Forest Concessions in Brazil

    E-Print Network [OSTI]

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

    2012-01-01T23:59:59.000Z

    DA MOTTA, R. Economic Incentives and Forest Concessions inin monitoring and economic incentives that may lead to theeconomic relationships involving risk sharing and incentives.

  6. andean moist forest: Topics by E-print Network

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

    moist temperate old-growth forests: A global review Multidisciplinary Databases and Resources Websites Summary: for significance through Monte-Carlo permutation procedure. We...

  7. araucaria angustifolia forest: Topics by E-print Network

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

    such as lumber, wood-based panel, pulp, paper and packaging productsBeyond the familiar Global integration for metals, mining and forest and paper companies Industrial;...

  8. ITP Forest Products: Energy and Environmental Profile of the...

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

    pulppaperprofile.pdf More Documents & Publications ITP Forest Products: Report for AIChE Pulp and Paper Industry Energy Bandwidth Study Report Steam System Opportunity Assessment...

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

    Energy Savers [EERE]

    Potawatomi Community July 21, 2014 - 12:03pm Addthis Anaerobic digesters reduce pollution and generate electricity in Milwaukee. | Image from Forest County Potawatomi...

  10. Forest Grove Light & Power- Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Forest Grove Light & Power offers a variety of rebates through Conservation Services Department. Rebates vary based on technology, and are available to residential, commercial, and/or...

  11. Rising global temperatures accelerate drought-induced forest...

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

    Feature Stories Cobalt Discovery Replaces Precious Metals Excavation Enclosures At MDA B Climate Change Cripples Forests Associate Director Of Environmental Programs Taking...

  12. JAPAN GOING TOWARD FOREST CERTIFICATION September 24, 2004

    E-Print Network [OSTI]

    IN JAPAN ............................... 3 ISO14001 (International Organization for Standardization customers are becoming aware of forest certification. In addition to the widespread of international

  13. Measurement and Monitoring of the World's Forests: A Review and...

    Open Energy Info (EERE)

    Measurement and Monitoring of the World's Forests: A Review and Summary of Remote Sensing Technical Capability, 2009-2015 Jump to: navigation, search Tool Summary LAUNCH TOOL Name:...

  14. Partnership Logging Accidents Cornelis de Hoop, LA Forest Products Lab

    E-Print Network [OSTI]

    Partnership Logging Accidents by Cornelis de Hoop, LA Forest Products Lab Albert Lefort Agreement 1998 & 1999 Accident Reports 25 injuries reported 185 loggers signed up 8 deaths 1999

  15. amazon forest degradation: Topics by E-print Network

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

    CiteSeer Summary: Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate...

  16. Managing coarse woody debris in forests of the Rocky Mountains. Forest Service research paper

    SciTech Connect (OSTI)

    Graham, R.T.; Harvey, A.E.; Jurgensen, M.F.; Jain, T.B.; Tonn, J.R.

    1994-09-01T23:59:59.000Z

    Recommendations for managing coarse woody debris after timber harvest were developed for 14 habitat types, ranging from ponderosa pine (Pinus ponderosa) habitat types of Arizona to subalpine fir (Abis lasiocarpa) habitat types of western Montana. Ectomycorrhizae were used as a bioindicator of health, productive forest soils. Undisturbed stands were studied to determine the optimum amounts of organic material for ectomycorrhizal activity. The management recommendations are intentionally conservative to ensure that enough organic matter is left after timber harvest to maintain long-term forest productivity.

  17. Commonality and variability in the structural attributes of moist temperate old-growth forests: A global review

    E-Print Network [OSTI]

    Vermont, University of

    Sustainable forest management Carbon sequestration Biodiversity Late-successional forests a b s t r a c

  18. Biomass yields for small trees, shrubs, and herbs in northern lake states forests. Forest Service research paper

    SciTech Connect (OSTI)

    Smith, W.B.

    1986-01-01T23:59:59.000Z

    Biomass yield information by forest type is presented for lesser vegetation in northern Michigan, Wisconsin, and Minnesota based on data from recent field inventories.

  19. Tracking changes in the susceptibility of forest land infested with gypsy moth. Forest Service research paper (Final)

    SciTech Connect (OSTI)

    Gansner, D.A.; Quimby, J.W.; King, S.L.; Arner, S.L.; Drake, D.A.

    1994-08-01T23:59:59.000Z

    The report questions the forest land subject to intensive outbreaks of gypsy moth (Lymantria dispar L.) which become less susceptible to defoliation. A model for estimating the lifelihood of gypsy moth defoliation has been developed and validated. It was applied to forest-inventory plot data to quantity trends in the susceptibility of forest land in south-central Pennsylvania during a period of intensive infestation. Results show that even though susceptibility of the region's forest apparently has declined, the potential for future infestations remains relatively high.

  20. Influence of stand age on the magnitude and seasonality of carbon fluxes in Canadian forests

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    productivity of a boreal aspen forest during and followingarea index of a boreal aspen-hazelnut forest in relation toPursh), TA: trembling aspen (Populus tremuloides Michx. ),

  1. Climate change and forests in India: note from the guest editors

    E-Print Network [OSTI]

    Ravindtranath, N.H.

    2011-01-01T23:59:59.000Z

    approaches to analysis of climate change impacts on forestsimpacts and adaptation to climate change in the forestABORATORY LBNL Pending Climate change and forests in India:

  2. Forests 2011, 2, 200-217; doi:10.3390/f2010200 ISSN 1999-4907

    E-Print Network [OSTI]

    Abstract: In this review paper, we assess the economical, governance, and technical conditions that shape. Forest degradation translates into losses of biodiversity, reduced capacity of forests to provide

  3. Integrated Forest Products Refinery (IFPR)

    SciTech Connect (OSTI)

    van Heiningen, Adriaan R. P.

    2010-05-29T23:59:59.000Z

    Pre-extractionkraft studies of hardwoods showed that when extracting about 10% of the wood, the final kraft pulp yield and physical properties could only be maintained at a level similar to that of regular kraft pulp when the final extract pH was close to neutral. This so-called near neutral pre-extraction condition at a level of 10% wood dissolution was achieved by contacting the wood chips with green liquor (GL) at a charge of about 3% (as Na2O on wood) at 160 C for almost 2 hours (or an H-factor of about 800 hrs.). During subsequent kraft cooking of the pre-extracted hardwood chips the effective alkali charge could be reduced by about 3% (as Na2O on wood) and the cooking time shortened relative to that during regular kraft cooking, while still producing the same bleachable grade kappa number as the kraft control pulp. For softwood, no extraction conditions were discovered in the present investigation whereby both the final kraft pulp yield and physical properties could be maintained at a level similar to that of regular softwood kraft pulp. Therefore for hardwoods the near- neutral green liquor pre-extraction conditions do meet the requirements of the IFPR concept, while for softwood, no extraction conditions were discovered which do meet these requirements. Application of simulated industrial GL at an extraction H-factor of about 800 hrs and 3% GL charge in a recirculating digester produced an hardwood extract containing about 4% (on wood) of total anhydro-sugars, 2% of acetic acid, and 1.3% of lignin. Xylan comprised of 80% of the sugars of which about 85% is oligomeric. Since only polymeric hemicelluloses and lignin may be adsorbed on pulp (produced at a yield of about 50% from the original wood), the maximum theoretical yield increase due to adsorption may be estimated as 10% on pulp (or 5% on wood). However, direct application of raw GL hardwood extract for hemicelluloses adsorption onto hardwood kraft pulp led to a yield increase of only about 1% (on pulp). By using the wet-end retention aid guar gum during the adsorption process at a charge of 0.5% on pulp the yield gain may be increased to about 5%. Unfortunately, most of this yield increase is lost during subsequent alkaline treatments in the pulp bleach plant. It was found that by performing the adsorption at alkaline conditions the adsorption loss during alkaline treatment in the bleach plant is mostly avoided. Thus a permanent adsorption yield of about 3 and 1.5% (on pulp) was obtained with addition of guar gum at a charge of 0.5 and 0.1% respectively during adsorption of GL hardwood extract on pre-extracted kraft pulp at optimal conditions of pH 11.5, 90 C for 60 minutes at 5% consistency. The beatability of the adsorbed kraft pulps was improved. Also, significant physical strength improvements were achieved. Further study is needed to determine whether the improvements in pulp yield and paper properties make this an economic IFPR concept. Application of the wood solids of a hot water extract of Acer rubrum wood strands as a substitute for polystyrene used for production of SMC maintained the water adsorption properties of the final product. Further work on the physical properties of the hemicellulose containing SMCs need to be completed to determine the potential of wood extracts for the production of partially renewable SMCs. The discovery of the near-neutral green liquor extraction process for hardwood was formed the basis for a commercial Integrated Biorefinery that will extract hemicelluloses from wood chips to make biofuels and other specialty chemicals. The pulp production process will be maintained as is proposed in the present researched IFBR concept. This Integrated Biorefinery will be constructed by Red Shield Acquisition LLC (RSA) at the Old Town kraft pulp mill in Maine. RSA in collaboration with the University of Maine will develop and commercialize the hemicellulose extraction process, the conversion of the hemicellulose sugars into butanol by fermentation, and the separation of specialty chemicals such as acetic acid fr

  4. New perspectives in forest management: Background, science issues, and research agenda. Forest Service research paper

    SciTech Connect (OSTI)

    Brooks, D.J.; Grant, G.E.

    1992-09-01T23:59:59.000Z

    Scientific, management, and social factors that have contributed to the changes in United States forest management are examined in the report. Principles underlying new approaches are developed and implications are considered at various spatial and temporal scales. A general framework for a research program is outlined.

  5. APPENDIX C Colorado Statewide Forest Resource Assessment Protect Forests From Harm

    E-Print Network [OSTI]

    on insect and disease activity in the state. Because the current aerial survey is conducted by different be made of how those species intersect with forests and where management could be most effectively applied level layer with the spatial locations and boundaries of approved Community Wildfire Protection Plans

  6. FSC has 'failed the world's forests' say critics FSC has 'failed the world's forests' say critics

    E-Print Network [OSTI]

    a variety of environmental organizations. The FSC is an international not-for-profit organization for slipping standards The Forest Stewardship Council (FSC) has come under increasingly harsh criticisms from environmental organizations like World Rainforest Movement and Ecological Internet are putting the organization

  7. Aridification determines changes in forest growth in Pinus halepensis forests under semiarid Mediterranean climate conditions

    E-Print Network [OSTI]

    Gracia, Carlos

    NDVI Leaf area index Landsat Climatic change Potential evapotranspiration Climatic trends Mediterranean Mediterranean climate conditions Sergio M. Vicente-Serrano a, *, Teodoro Lasanta a , Carlos Gracia b a Instituto to climate variability and change. At a global scale, net primary production of forests increased 6

  8. The Global Forest Resource Assessment FRA2010 and

    E-Print Network [OSTI]

    The Global Forest Resource Assessment FRA2010 and Remote Sensing Survey work by FAO and partners Mette L. Wilkie Adam Gerrand www.fao.org/forestry/fra2010 #12;Outline of the global Forest Resource Assessment (FRA) process and 2005 results The new FRA Remote Sensing Survey (RSS) Potential opportunities

  9. Chapter Number1 Biomass Prediction in Tropical Forests:2

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Chapter Number1 Biomass Prediction in Tropical Forests:2 The Canopy Grain Approach3 Christophe France9 1. Introduction10 The challenging task of biomass prediction in dense and heterogeneous tropical different forest structures may indeed present similar above ground biomass (AGB) values.13 This is probably

  10. Classification of Sweden's Forest and Alpine Vegetation Using Optical

    E-Print Network [OSTI]

    Classification of Sweden's Forest and Alpine Vegetation Using Optical Satellite and Inventory Data of Sweden's Forest and Alpine Vegetation Using Optical Satellite and Inventory Data. Abstract Creation of accurate vegetation maps from optical satellite data requires use of reference data to aid

  11. Variable Responses of Lowland Tropical Forest Nutrient Status

    E-Print Network [OSTI]

    Harms, Kyle E.

    Variable Responses of Lowland Tropical Forest Nutrient Status to to play a key role in nutrient retention. We discuss our findings in the context of possible impacts Springer Science+Business Media, LLC 387 #12;growth not only alters forests' nutrient demands but also

  12. Forest Diagrams for Elements of Thompson's Group F

    E-Print Network [OSTI]

    Brown, Ken

    Forest Diagrams for Elements of Thompson's Group F James M. Belk and Kenneth S. Brown June 25, 2004 Abstract We introduce forest diagrams to represent elements of Thompson's group F. These diagrams relate of the Cayley graph of F. 1 Introduction Thompson's group F is defined by the following infinite presentation: F

  13. FOREST CERTIFICATION IN BRAZIL: TRADE AND ENVIRONMENTAL ENHANCEMENT 1

    E-Print Network [OSTI]

    of traded goods is evident from Brazil's experience with forest certification by both businesses of appropriate logging practices, further deflating prices and quality. Much of Brazil's tropical timber originates from deforestation: about 2.3 million hectares of forests are cut annually for agricultural

  14. The Duke Forest Stormwater Improvement and Wetlands Restoration Project

    E-Print Network [OSTI]

    from the Duke Forest and the Pratt School of Engineering, restored 2000 feet (600 m) of stream Forest Sandy Creek Wetland Restoration site as well as the restoration of over 2000 feet of stream below. 1. Phase I: Re-contour and Restore more than 600 meters (2000 ft) of degraded stream

  15. FOR341 Timber Harvesting and Forest Roads Spring 2009

    E-Print Network [OSTI]

    Vonessen, Nikolaus

    FOR341 Timber Harvesting and Forest Roads Spring 2009 Instructor: Beth Dodson Office: FOR 201A Text: Water Quality BMPs (Best Management Practices) for Montana Forests Other readings as assigned (available in class folder: R:\\Classes\\Spring2009\\FOR341) Course Description: An overview of harvesting

  16. Physicalbiological coupling in spore dispersal of kelp forest macroalgae

    E-Print Network [OSTI]

    Washburn, Libe

    Physical­biological coupling in spore dispersal of kelp forest macroalgae $ Brian Gaylorda produced by macroalgae that reside in kelp forests are complicated and laced with feedbacks. Here we before they contact the seafloor. Morphologies and material properties of canopy forming kelps may also

  17. BIOTECHNOLOGY: WORKING WITH NATURE TO IMPROVE FOREST RESOURCES AND PRODUCTS

    E-Print Network [OSTI]

    Abubakr, Said

    . Effective management of forested lands is central to our quality of life and the sustainability and health that can contribute to forest sustainability include genetic engineering and phytoremediation. Genetic implications is phytoremediation, the use of genetically modified trees for soil remediation. Phytoremediation

  18. Forest Ecology (3 credits) FOR 3153C Section: 2265

    E-Print Network [OSTI]

    Florida, University of

    Forest Ecology (3 credits) FOR 3153C Section: 2265 Lectures and Discussion Thursday (periods 3 Ecological principles and their application to the management of forests; major sections include tree students with an overview of 1) ecological principles at four major scales of biological organization

  19. Mitigating Climate Change with Managed Forests: Balancing Expectations,

    E-Print Network [OSTI]

    Vermont, University of

    with anticipation regarding how managed forests will be able to par- ticipate in emerging markets for carbon offsets. Carbon markets may in the future offer some potential for com- pensating forest landowners for actions (Bell 2008). Forestry projects can influence CO2 sequestration in essentially three ways: (i

  20. Research Summary Cultural values of trees, woods and forests

    E-Print Network [OSTI]

    between economic, social and environmental factors, as well as provide `ecosystem services' including of particular aspects of cultural benefit contemporary and heritage. Methods o The study began of forest management and policy, including the valuation of forests. The research highlights a distinction

  1. Professor Clive Brasier, Forest Research UK Scientific and operational flaws

    E-Print Network [OSTI]

    circinatum, recently reported from Spain, Italy; now spread to Portugal? .. Photos: Joan Webber Forest and mortality of cork oaks and holm oaks in Spain and Portugal. Origin: Pacific-Celebes area. Phytophthora cinnamomi root disease of Q. ilex, Spain Photo Forest Research UK #12;Phytophthora alni sp. nov. on alder

  2. Carbon dioxide emission during forest fires ignited by lightning

    E-Print Network [OSTI]

    Magdalena Pelc; Radoslaw Osuch

    2009-03-31T23:59:59.000Z

    In this paper we developed the model for the carbon dioxide emission from forest fire. The master equation for the spreading of the carbon dioxide to atmosphere is the hyperbolic diffusion equation. In the paper we study forest fire ignited by lightning. In that case the fores fire has the well defined front which propagates with finite velocity.

  3. Climate Change Threatens Coexistence within Communities of Mediterranean Forested Wetlands

    E-Print Network [OSTI]

    Paparella, Francesco

    Climate Change Threatens Coexistence within Communities of Mediterranean Forested Wetlands Arianna on Agriculture, Forest, and Natural Ecosystems, Euromediterranean Center for Climate Change, Viterbo, Italy, 3 The Mediterranean region is one of the hot spots of climate change. This study aims at understanding what

  4. Condition and fate of logged forests in the Brazilian Amazon

    E-Print Network [OSTI]

    Camara, Gilberto

    Ecology, Carnegie Institution of Washington, Stanford, CA 94305; U.S. Department of Agriculture Forest resulted in high levels of canopy damage suffi- cient to leave forests susceptible to drought and fire. We the management regimes in effect at the time of our study in the Brazilian Amazon, selective logging would

  5. A general quantitative theory of forest structure and dynamics

    E-Print Network [OSTI]

    Saleska, Scott

    A general quantitative theory of forest structure and dynamics Geoffrey B. Westa , Brian J for review October 1, 2008) We present the first part of a quantitative theory for the structure and dynamics to predict numerous structural and dynamical properties of idealized forests. allometry size spectra metaboic

  6. School of Forest Resources and Conservation 2009 Unit Review Document

    E-Print Network [OSTI]

    Watson, Craig A.

    School of Forest Resources and Conservation UF/IFAS 2009 Unit Review Document October, 2009; Revised January, 2010 #12;School of Forest Resources and Conservation UF/IFAS 2009 Unit Review Document that encompass sustainable conservation, production and management. Mission To deliver integrated programs

  7. International Forest Policy Database | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtelInterias Solar Energy Jump to:IES Jump to: navigation, searchForest

  8. Global Forest Resource Assessment | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG Contracting Jump to:Echo,GEF Jump to: navigation, search Name:Forest

  9. MECS 2006 - Forest Products | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomy andTermsDepartment1| DepartmentCementFood andForest

  10. Black Forest Partners | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia: EnergyAvignon,Belcher HomesLyonsBirch Creek VillageForest Partners

  11. Sustainable Forest Finance Toolkit | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <Maintained By FaultSunpods IncEurope Research Institute Jump to:Forest

  12. Forest fire near Los Alamos National Laboratory

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental Assessments (EA)Budget(DANCE) Target 1Annual Waste ForecastSitesForest

  13. Governance of Forests Initiative | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/Exploration <GlacialGolden SpreadGomtiof Forests Initiative

  14. What happened to the coal forests during Pennsylvanian glacial phases?

    SciTech Connect (OSTI)

    Falcon-Lang, H.J.; Dimichele, W.A. [University of London, Egham (United Kingdom). Dept. of Earth Science

    2010-09-15T23:59:59.000Z

    Sequence stratigraphic analysis of Pennsylvanian coal-bearing strata suggests that glacial-interglacial fluctuations at high latitudes drove cyclic changes in tropical biomes. A literature review of plant assemblages in this paleoclimatic context suggests that coal forests dominated during humid interglacial phases, but were replaced by seasonally dry vegetation during glacial phases. After each glacial event, coal forests reassembled with largely the same species composition. This remarkable stasis implies that coal-forest refugia existed across the equatorial landscape during glacial phases, expanding to repopulate lowlands during and following deglaciation. One possibility is that refugia comprised small pockets of wetland forest strung out along valleys at some sites, but data are currently insufficient to test this hypothesis. The model presented here, if accepted, dramatically alters our understanding of the coal forests and helps explain aspects of their dynamics.

  15. 3 October 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    PRODUCTS INTEREST GROUP AN OUTDOOR LIFE Green is undaunted. The youngest of seven children, he scored a 4 / FORESTY PRODUCTS INTEREST GROUP Idaho lumberjack clings to family business as jobs fade America once had/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP When he shows up

  16. 24 September 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    for profitable, large-scale production have failed. The second-largest U.S. oil company by market value spent24 September 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP 1 Chevron's Search for Plant-Based Alternative Fuels Flounders Joe Carroll

  17. Functional structure of ant and termite assemblages in old growth forest, logged forest and oil palm plantation in Malaysian Borneo

    E-Print Network [OSTI]

    Luke, Sarah H.; Fayle, Tom M.; Eggleton, Paul; Turner, Edgar C.; Davies, Richard G.

    2014-07-30T23:59:59.000Z

    ORI GIN AL PA PER Functional structure of ant and termite assemblages in old growth forest, logged forest and oil palm plantation in Malaysian Borneo Sarah H. Luke Tom M. Fayle Paul Eggleton Edgar C. Turner Richard G. Davies Received: 25...

  18. USDA Forest Service Gen. Tech. Rep. PSW-GTR-203. 2007. 67 Reintroducing Fire to the Oak Forests of

    E-Print Network [OSTI]

    Standiford, Richard B.

    of Pennsylvania: Response of Striped Maple1 Patrick H. Brose,2 Gary W. Miller,3 and Kurt W. Gottschalk3 Abstract throughout eastern North America, including the mid-Atlantic region (Abrams 1992, Brose et al. 2001, Yaussy, WV. #12;Management Strategies--Reintroducing Fire to Oak Forests--Brose et al. USDA Forest Service

  19. 2 March 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP

    E-Print Network [OSTI]

    / FORESTY PRODUCTS INTEREST GROUP 1 Webinar Archive The Transatlantic Trade in Wood for Energy Slides complex sustainability issues related to the growing trade in wood pellets between the U.S. and Europe2 March 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR

  20. The Economic Impact of Network Pricing Errin W. Fulp1

    E-Print Network [OSTI]

    Reeves, Douglas S.

    prices are more responsive to changing demands. However, experimental results in- dicate only a modest varying parameters such as Time of Day (ToD) statistics. As noted in [12, 13, 5, 9], the aggregate demand the aggregate traffic arriving and departing Wake Forest University campus during a week. Peak demand is evident