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


1

Improving liquid chemical intervention methods to control pathogens on fresh-cut fruits and vegetables  

E-Print Network (OSTI)

Factors that affect liquid chemical intervention methods of controlling pathogens on fresh-cut produce were investigated. The relationship between produce tissue structure (intercellular space, cell size, and cell distribution) and the sanitizing...

Troya, Maria Rosa

2006-08-16T23:59:59.000Z

2

Texas High Plains Vegetable & Weed Control Research Program  

E-Print Network (OSTI)

Texas High Plains Vegetable & Weed Control Research Program Research Summary Reports 2008 Texas RESULTS OF HIGH PLAINS TRIALS 8 Herbicides and Weed Control Herbicide screen for mustard and collard for heat tolerance and yield on the Texas High Plains (I) .................. 40 Evaluation of snap bean

Mukhtar, Saqib

3

Final environmental assessment for vegetation control at VHF stations, microwave stations, electrical substations, and pole yards  

SciTech Connect

Southwestern Power Adm. operates very high frequency (VHF) and microwave radio stations, electrical substations, and pole yards for electric power transmission throughout AR, MO, and OK. Vegetation growth at the stations must be suppressed for safety of operation and personnel. Southwestern has been using a combination of mechanical/manual and herbicide control for this purpose; Federally- mandated reductions in staff and budgetary resources require Southwestern to evaluate all potentially efficient methods for vegetation control. Three alternatives were examined: no action, mechanical/manual control, and (proposed) a combination of mechanical/manual and herbicide control. Environmental impacts on air and water quality, wetlands, wildlife, endangered species, archaeological and other resources, farmland, human health, transportation, etc. were evaluated.

NONE

1995-10-13T23:59:59.000Z

4

Control system design method  

DOE Patents (OSTI)

A control system design method and concomitant control system comprising representing a physical apparatus to be controlled as a Hamiltonian system, determining elements of the Hamiltonian system representation which are power generators, power dissipators, and power storage devices, analyzing stability and performance of the Hamiltonian system based on the results of the determining step and determining necessary and sufficient conditions for stability of the Hamiltonian system, creating a stable control system based on the results of the analyzing step, and employing the resulting control system to control the physical apparatus.

Wilson, David G. (Tijeras, NM); Robinett, III, Rush D. (Tijeras, NM)

2012-02-21T23:59:59.000Z

5

Vegetative covers for sediment control and phosphorus sequestration from dairy waste application fields  

E-Print Network (OSTI)

VEGETATIVE COVERS FOR SEDIMENT CONTROL AND PHOSPHORUS SEQUESTRATION FROM DAIRY WASTE APPLICATION FIELDS A Thesis by SUBHASIS GIRI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 2008 Major Subject: Biological and Agricultural Engineering VEGETATIVE COVERS FOR SEDIMENT CONTROL AND PHOSPHORUS SEQUESTRATION FROM DAIRY WASTE APPLICATION FIELDS A Thesis...

Giri, Subhasis

2008-10-10T23:59:59.000Z

6

Method of turbocharger control  

SciTech Connect

This patent describes a method of turbocharger control in a vehicle having an engine and a turbocharger for increasing the density of at least the air entering a cylinder of the engine. The turbocharger has at least a compressor and a turbine coupled by a shaft and a nozzle to increase the angular momentum of the flow of gas to the turbine. The nozzle has a housing and movable vanes to vary the angle and velocity that the exhaust gas hits the wheel of the turbine, and actuator for moving the vanes, a can separated by a diaphragm and having an A side and B side for actuating the actuator, solenoid-actuated valves for controlling the pressure in the A and B sides of the can, an electronic control unit (ECU) having memory for storing data and predetermined values and for actuating and de-actuating the solenoid-actuated valves, a plurality of inputs to the ECU for providing input data indicative of engine temperature, engine speed, vehicle speed, intake manifold pressure, throttle angle, engine knock and charge air temperature.

Lyon, K.M.

1990-10-09T23:59:59.000Z

7

Method for controlling brazing  

DOE Patents (OSTI)

A method for making a braze joint across a discontinuity in a work piece using alternating current. A filler metal is pre-placed at a location sufficiently close to the discontinuity such that, when an alternating current is applied across a work piece to heat the work piece and melt the filler metal, the filler metal is drawn into the discontinuity. The alternating current is maintained for a set residence time, generally less than 10 seconds and more particularly less than 3 seconds. The alternating current is then altered, generally by reducing the current and/or voltage such that the filler metal can solidify to form a braze joint of desired quality and thickness.

Hosking, F. Michael (Albuquerque, NM); Hall, Aaron C. (Albuquerque, NM); Givler, Richard C. (Albuquerque, NM); Walker, Charles A. (Albuquerque, NM)

2006-08-01T23:59:59.000Z

8

Method for controlling powertrain pumps  

DOE Patents (OSTI)

A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the powertrain, while the excess power is not part of the requested power. The method includes sensing a triggering condition in response to the ability to convert the excess power into heat in the transmission, and determining that an operating temperature of the transmission is below a maximum. The method also includes determining a calibrated baseline and a dissipation command for the pump. The calibrated baseline command is configured to supply the fluid based upon the requested power, and the dissipation command is configured to supply additional fluid and consume the excess power with the pump. The method operates the pump at a combined command, which is equal to the calibrated baseline command plus the dissipation command.

Sime, Karl Andrew; Spohn, Brian L; Demirovic, Besim; Martini, Ryan D; Miller, Jean Marie

2013-10-22T23:59:59.000Z

9

Methanol tailgas combustor control method  

DOE Patents (OSTI)

A method for controlling the power and temperature and fuel source of a combustor in a fuel cell apparatus to supply heat to a fuel processor where the combustor has dual fuel inlet streams including a first fuel stream, and a second fuel stream of anode effluent from the fuel cell and reformate from the fuel processor. In all operating modes, an enthalpy balance is determined by regulating the amount of the first and/or second fuel streams and the quantity of the first air flow stream to support fuel processor power requirements.

Hart-Predmore, David J. (Rochester, NY); Pettit, William H. (Rochester, NY)

2002-01-01T23:59:59.000Z

10

Method and apparatus for measuring solar radiation in a vegetative canopy  

DOE Patents (OSTI)

An apparatus and method for measuring solar radiation received in a vegetative canopy. A multiplicity of sensors selectively generates electrical signals in response to impinging photosynthetically active radiation in sunlight. Each sensor is attached to a plant within the canopy and is electrically connected to a separate port in a junction box having a multiplicity of ports. Each port is connected to an operational amplifier. Each amplifier amplifies the signals generated by the sensors. Each amplifier is connected to an analog-to-digital convertor which digitizes each signal. A computer is connected to the convertors and accumulates and stores solar radiation data. A data output device such as a printer is connected to the computer and displays the data.

Gutschick, V.P.; Barron, M.H.; Waechter, D.A.; Wolf, M.A.

1985-04-30T23:59:59.000Z

11

Method and apparatus for measuring solar radiation in a vegetative canopy  

DOE Patents (OSTI)

An apparatus and method for measuring solar radiation received in a vegetative canopy. A multiplicity of sensors selectively generates electrical signals in response to impinging photosynthetically active radiation in sunlight. Each sensor is attached to a plant within the canopy and is electrically connected to a separate port in a junction box having a multiplicity of ports. Each port is connected to an operational amplifier. Each amplifier amplifies the signals generated by the sensors. Each amplifier is connected to an analog-to-digital convertor which digitizes each signal. A computer is connected to the convertors and accumulates and stores solar radiation data. A data output device such as a printer is connected to the computer and displays the data.

Gutschick, Vincent P. (Los Alamos, NM); Barron, Michael H. (Los Alamos, NM); Waechter, David A. (Los Alamos, NM); Wolf, Michael A. (Los Alamos, NM)

1987-01-01T23:59:59.000Z

12

Integrated control system and method  

DOE Patents (OSTI)

An integrated control system for use with an engine connected to a generator providing electrical power to a switchgear is disclosed. The engine receives gas produced by a gasifier. The control system includes an electronic controller associated with the gasifier, engine, generator, and switchgear. A gas flow sensor monitors a gas flow from the gasifier to the engine through an engine gas control valve and provides a gas flow signal to the electronic controller. A gas oversupply sensor monitors a gas oversupply from the gasifier and provides an oversupply signal indicative of gas not provided to the engine. A power output sensor monitors a power output of the switchgear and provide a power output signal. The electronic controller changes gas production of the gasifier and the power output rating of the switchgear based on the gas flow signal, the oversupply signal, and the power output signal.

Wang, Paul Sai Keat; Baldwin, Darryl; Kim, Myoungjin

2013-10-29T23:59:59.000Z

13

Method of controlling fusion reaction rates  

DOE Patents (OSTI)

This invention relates to a method of controlling the reaction rates in a nuclear fusion reactor; and more particularly, to the use of polarized nuclear fuel.

Kulsrud, R.M.; Furth, H.P.; Valeo, E.J.; Goldhaber, M.

1983-05-09T23:59:59.000Z

14

Method for crystal growth control  

DOE Patents (OSTI)

The growth of a crystalline body of a selected material is controlled so that the body has a selected cross-sectional shape. The apparatus is of the type which includes the structure normally employed in known capillary die devices as well as means for observing at least the portion of the surfaces of the growing crystalline body and the meniscus (of melt material from which the body is being pulled) including the solid/liquid/vapor junction in a direction substantially perpendicular to the meniscus surface formed at the junction when the growth of the crystalline body is under steady state conditions. The cross-sectional size of the growing crystalline body can be controlled by determining which points exhibit a sharp change in the amount of reflected radiation of a preselected wavelength and controlling the speed at which the body is being pulled or the temperature of the growth pool of melt so as to maintain those points exhibiting a sharp change at a preselected spatial position relative to a predetermined reference position. The improvement comprises reference object means positioned near the solid/liquid/vapor junction and capable of being observed by the means for observing so as to define said reference position so that the problems associated with convection current jitter are overcome.

Yates, Douglas A. (Burlington, MA); Hatch, Arthur E. (Waltham, MA); Goldsmith, Jeff M. (Medford, MA)

1981-01-01T23:59:59.000Z

15

Soil Amendments Promote Vegetation Establishment and Control Acidity in Coal Combustion Waste  

Science Journals Connector (OSTI)

The effects of adding various soil amendments and a pyrite oxidation inhibitor to aid in the establishment of vegetation and to reduce acid drainage (AD) from coal fly ash and coal reject (FA + CR*) were assessed...

R. M. Danker; D. C. Adriano; Bon-Jun Koo…

2003-01-01T23:59:59.000Z

16

Method of controlling fusion reaction rates  

DOE Patents (OSTI)

A method of controlling the reaction rates of the fuel atoms in a fusion reactor comprises the step of polarizing the nuclei of the fuel atoms in a particular direction relative to the plasma confining magnetic field. Fusion reaction rates can be increased or decreased, and the direction of emission of the reaction products can be controlled, depending on the choice of polarization direction.

Kulsrud, Russell M. (Princeton, NJ); Furth, Harold P. (Princeton, NJ); Valeo, Ernest J. (Princeton Junction, NJ); Goldhaber, Maurice (Bayport, NY)

1988-01-01T23:59:59.000Z

17

Vegetables, Fruits, Legumes and Prostate Cancer: A Multiethnic Case-Control Study  

Science Journals Connector (OSTI)

...adjustment for energy and other potential...included total, dark green, yellow-orange...health interview survey. In Los Angeles...the foods in the dark green and cruciferous...adjustment for total energy intake (r 0...adjusted for total energy intake. Table...3 4 5 (high) Dark green vegetables...

Laurence N. Kolonel; Jean H. Hankin; Alice S. Whittemore; Anna H. Wu; Richard P. Gallagher; Lynne R. Wilkens; Esther M. John; Geoffrey R. Howe; Darlene M. Dreon; Dee W. West; and Ralph S. Paffenbarger, Jr.

2000-08-01T23:59:59.000Z

18

LED lamp color control system and method  

SciTech Connect

An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A.M.

2013-02-05T23:59:59.000Z

19

Gnie mcanique Implementing the Quotient Method Controller  

E-Print Network (OSTI)

of this project was to apply this method on a Ball-on-a- Wheel system. This system consists of a ball rolling the ball-on-a-wheel system it is important to have a sufficiently fast sampling rate. Normal webcamsSECTION DE Génie mécanique Implementing the Quotient Method Controller on the Ball-on-a-Wheel

Lausanne, Ecole Polytechnique Fédérale de

20

Control Methods and Simulations of Micro-grid  

Science Journals Connector (OSTI)

The micro-grid’s control methods and simulations are presented...P/Q control is adopted. However, the control method is changed to U/f...control when it turns to the islanded mode. To demonstrate the operation of...

He-Jin Liu; Ke-Jun Li; Ying Sun; Zhen-Yu Zou; Yue Ma…

2011-01-01T23:59:59.000Z

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


21

System and method for controlling remote devices  

DOE Patents (OSTI)

A system and method for controlling remote devices utilizing a radio frequency identification (RFID) tag device having a control circuit adapted to render the tag device, and associated objects, permanently inoperable in response to radio-frequency control signals. The control circuit is configured to receive the control signals that can include an enable signal, and in response thereto enable an associated object, such as a weapon; and in response to a disable signal, to disable the tag itself, or, if desired, to disable the associated weapon or both the device and the weapon. Permanent disabling of the tag can be accomplished by several methods, including, but not limited to, fusing a fusable link, breaking an electrically conductive path, permanently altering the modulation or backscattering characteristics of the antenna circuit, and permanently erasing an associated memory. In this manner, tags in the possession of unauthorized employees can be remotely disabled, and weapons lost on a battlefield can be easily tracked and enabled or disabled automatically or at will.

Carrender, Curtis Lee (Richland, WA); Gilbert, Ronald W. (Benton City, WA); Scott, Jeff W. (Pasco, WA); Clark, David A. (Kennewick, WA)

2006-02-07T23:59:59.000Z

22

Estimating production functions with damage control inputs: an application to Korean vegetable production  

E-Print Network (OSTI)

This thesis focuses on the use of chemicals for pest control in Korean cucumber production. The empirical issue addressed is whether estimating crop production functions consistent with the economic theory of damage control inputs makes significant...

Park, Pil Ja

2002-01-01T23:59:59.000Z

23

Method and apparatus for large motor control  

DOE Patents (OSTI)

Apparatus and method for providing digital signal processing method for controlling the speed and phase of a motor involves inputting a reference signal having a frequency and relative phase indicative of a time based signal; modifying the reference signal to introduce a slew-rate limited portion of each cycle of the reference signal; inputting a feedback signal having a frequency and relative phase indicative of the operation of said motor; modifying the feedback signal to introduce a slew-rate limited portion of each cycle of the feedback signal; analyzing the modified reference signal and the modified feedback signal to determine the frequency of the modified reference signal and of the modified feedback signal and said relative phase between said modified reference signal and said modified feedback signal; and outputting control signals to the motor for adjusting said speed and phase of the motor based on the frequency determination and determination of the relative phase.

Rose, Chris R. (Santa Fe, NM); Nelson, Ronald O. (White Rock, NM)

2003-08-12T23:59:59.000Z

24

Control system for heliostats and method  

SciTech Connect

A control system and method for a heliostat or a system of heliostats which operates to maintain the sunbeam properly centered with respect to an associated tracking head and tracks the sun for proper elevational and azimuthal orientation of the heliostat. The tracking date is stored in memory and utilized to reset the heliostat at night for proper orientation during the next days tracking and/or for proper orientation during sunless periods of the day. Each heliostat is therefore self-tracking.

Gerwin, H. L.

1985-05-28T23:59:59.000Z

25

Bonneville - Hood River Vegetation Management Environmental Assessment  

SciTech Connect

To maintain the reliability of its electrical system, BPA, in cooperation with the U.S. Forest Service, needs to expand the range of vegetation management options used to clear unwanted vegetation on about 20 miles of BPA transmission line right-of-way between Bonneville Dam and Hood River; Oregon, within the Columbia Gorge National Scenic Area (NSA). We propose to continue controlling undesirable vegetation using a program of Integrated Vegetation Management (IVM) which includes manual, biological and chemical treatment methods. BPA has prepared an Environmental Assessment (EA) (DOE/EA-1257) evaluating the proposed project. Based on the analysis in the EA, BPA has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an Environmental Impact Statement (EIS) is not required and BPA is issuing this FONSI.

N /A

1998-08-01T23:59:59.000Z

26

Method for enhanced control of welding processes  

DOE Patents (OSTI)

Method and system for producing high quality welds in welding processes, in general, and gas tungsten arc (GTA) welding, in particular by controlling weld penetration. Light emitted from a weld pool is collected from the backside of a workpiece by optical means during welding and transmitted to a digital video camera for further processing, after the emitted light is first passed through a short wavelength pass filter to remove infrared radiation. By filtering out the infrared component of the light emitted from the backside weld pool image, the present invention provides for the accurate determination of the weld pool boundary. Data from the digital camera is fed to an imaging board which focuses on a 100.times.100 pixel portion of the image. The board performs a thresholding operation and provides this information to a digital signal processor to compute the backside weld pool dimensions and area. This information is used by a control system, in a dynamic feedback mode, to automatically adjust appropriate parameters of a welding system, such as the welding current, to control weld penetration and thus, create a uniform weld bead and high quality weld.

Sheaffer, Donald A. (Livermore, CA); Renzi, Ronald F. (Tracy, CA); Tung, David M. (Livermore, CA); Schroder, Kevin (Pleasanton, CA)

2000-01-01T23:59:59.000Z

27

Barrier erosion control test plan: Gravel mulch, vegetation, and soil water interactions  

SciTech Connect

Soil erosion could reduce the water storage capacity of barriers that have been proposed for the disposal of near-surface waste at the US Department of Energy's Hanford Site. Gravel mixed into the top soil surface may create a self-healing veneer that greatly retards soil loss. However, gravel admixtures may also enhance infiltration of rainwater, suppress plant growth and water extraction, and lead to the leaching of underlying waste. This report describes plans for two experiments that were designed to test hypotheses concerning the interactive effects of surface gravel admixtures, revegetation, and enhanced precipitation on soil water balance and plant abundance. The first experiment is a factorial field plot set up on the site selected as a soil borrow area for the eventual construction of barriers. The treatments, arranged in a a split-split-plot design structure, include two densities of gravel admix, a mixture of native and introduced grasses, and irrigation to simulate a wetter climate. Changes in soil water storage and plant cover are monitored with neutron moisture probes and point intercept sampling, respectively. The second experiment consists of an array of 80 lysimeters containing several different barrier prototypes. Surface treatments are similar to the field-plot experiment. Drainage is collected from a valve at the base of each lysimeter tube, and evapotranspiration is estimated by subtraction. The lysimeters are also designed to be coupled to a whole-plant gas exchange system that will be used to conduct controlled experiments on evapotranspiration for modeling purposes. 56 refs., 6 figs., 8 tabs.

Waugh, W.J.; Link, S.O. (Pacific Northwest Lab., Richland, WA (USA))

1988-07-01T23:59:59.000Z

28

Feedwater temperature control methods and systems  

DOE Patents (OSTI)

A system for controlling the power level of a natural circulation boiling water nuclear reactor (NCBWR) is disclosed. The system, in accordance with an example embodiment of the present invention, may include a controller configured to control a power output level of the NCBWR by controlling a heating subsystem to adjust a temperature of feedwater flowing into an annulus of the NCBWR. The heating subsystem may include a steam diversion line configured to receive steam generated by a core of the NCBWR and a steam bypass valve configured to receive commands from the controller to control a flow of the steam in the steam diversion line, wherein the steam received by the steam diversion line has not passed through a turbine. Additional embodiments of the invention may include a feedwater bypass valve for controlling an amount of flow of the feedwater through a heater bypass line to the annulus.

Moen, Stephan Craig; Noonan, Jack Patrick; Saha, Pradip

2014-04-22T23:59:59.000Z

29

Integrated power unit control apparatus and method  

SciTech Connect

This patent describes control apparatus for a dual mode turbine engine, the turbine engine including a dynamic compressor supplying pressurized air to a combustor of the engine, and a storage source of pressurized air selectively flowing to the combustor via an air control valve; the control apparatus. It comprises: air flow control means receiving a signal CIP indicative of the pressure level of pressurized air at the combustor and in response thereto providing to the air control valve/a command signal Air/Fuel COMM indicative of a mass flow rate of air to be provided to the combustor from the storage source; and fuel control means receiving the Air/Fuel COMM signal and in response thereto providing a signal W{sub F} indicative of the weight of fuel per unit time to be provided to the combustor.

Klaass, R.M.; Minshall, B.J.; Suriano, F.J.; Caan, W.

1992-03-24T23:59:59.000Z

30

A new control theory and method - human-thinking simulated control  

Science Journals Connector (OSTI)

A new control theory and method called human-thinking simulated control is proposed firstly according to the human cognition and human control thinking mechanism. Its main research contents are to reveal the thinking password of human brain control for a complex system and design the controller simulating human control thinking. The background and research contents of human-thinking simulated control are introduced, and the structure and implementation of the controller are discussed in the paper. A case study proves that the new control method is effective and successful. Cybernetics based on human control thinking will be founded in the future.

Peijin Wang

2014-01-01T23:59:59.000Z

31

NETL: IEP - Mercury Emissions Control: Methods Development  

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

Methods Development Methods Development EPRI and NETL collaboratively funded a $3-million program under the DOE/ University of North Dakota Energy and Environmental Research Center (UNDEERC) Jointly Sponsored Research Program (JSRP) to evaluate, develop, and validate a mercury speciation method for coal-fired produced flue gas. There was a 60/40 percent split of the funding, as required under the JSRP for this two-year effort. The work conducted by the EERC identified the Ontario Hydro Method as the best mercury speciation method. The EERC has validated the Ontario Hydro Method at both pilot- and full-scale levels. Radian International aided in the full-scale validation, with a written protocol of the method being finalized through the American Society for Testing and Materials (ASTM).

32

Influence of application methods and varying rates of uniconazol on the vegetative and reproductive response of pecan trees, Carya illinoensis (Wang) K. Koch  

E-Print Network (OSTI)

INFLUENCE OF APPLICATION METHODS AND VARYING RATES OF UNICONAZOL ON THE VEGETATIVE AND REPRODUCTIVE RESPONSE OF PECAN ~, Carye illinoertsis (Wang) K Koch A Thesis CHARLES JORDAN GRAHAM Submitted to the OIIice of Graduate Studies of Texas A..., Carya illinoensis (Wang) K. Koch A Thesis CHARLES JORDAN GRAHAM Approved as to style and content by: J. enton Storey (Chairman of Committee) eorge y McEachern (Member) anklin ong (Member) David Wm. Reed (Head of Department) May 1990 ABSTRACT...

Graham, Charles Jordan

1990-01-01T23:59:59.000Z

33

Advanced particulate matter control apparatus and methods  

DOE Patents (OSTI)

Apparatus and methods for collection and removal of particulate matter, including fine particulate matter, from a gas stream, comprising a unique combination of high collection efficiency and ultralow pressure drop across the filter. The apparatus and method utilize simultaneous electrostatic precipitation and membrane filtration of a particular pore size, wherein electrostatic collection and filtration occur on the same surface.

Miller, Stanley J. (Grand Forks, ND); Zhuang, Ye (Grand Forks, ND); Almlie, Jay C. (East Grand Forks, MN)

2012-01-10T23:59:59.000Z

34

Method and system for controlled combustion engines  

DOE Patents (OSTI)

A system for controlling combustion in internal combustion engines of both the Diesel or Otto type, which relies on establishing fluid dynamic conditions and structures wherein fuel and air are entrained, mixed and caused to be ignited in the interior of a multiplicity of eddies, and where these structures are caused to sequentially fill the headspace of the cylinders.

Oppenheim, A. K. (Berkeley, CA)

1990-01-01T23:59:59.000Z

35

Methodic design of a measurement and control system for climate control in horticulture  

Science Journals Connector (OSTI)

Many papers describe applications of advanced controllers in greenhouses. As control literature focusses on control algorithms, the layout of the measurement and control system is usually underexposed. Unfortunately, commercially available greenhouse ... Keywords: Closed greenhouse, Measurement and control system, Methodic design, Watergy project

S. L. Speetjens; H. J. J. Janssen; G. van Straten; Th. H. Gieling; J. D. Stigter

2008-12-01T23:59:59.000Z

36

Apparatus and method for controlling autotroph cultivation  

DOE Patents (OSTI)

A method includes receiving at least one measurement of a dissolved carbon dioxide concentration of a mixture of fluid containing an autotrophic organism. The method also includes determining an adjustment to one or more manipulated variables using the at least one measurement. The method further includes generating one or more signals to modify the one or more manipulated variables based on the determined adjustment. The one or more manipulated variables could include a carbon dioxide flow rate, an air flow rate, a water temperature, and an agitation level for the mixture. At least one model relates the dissolved carbon dioxide concentration to one or more manipulated variables, and the adjustment could be determined by using the at least one model to drive the dissolved carbon dioxide concentration to at least one target that optimize a goal function. The goal function could be to optimize biomass growth rate, nutrient removal and/or lipid production.

Fuxman, Adrian M; Tixier, Sebastien; Stewart, Gregory E; Haran, Frank M; Backstrom, Johan U; Gerbrandt, Kelsey

2013-07-02T23:59:59.000Z

37

Control system and method for payload control in mobile platform cranes  

DOE Patents (OSTI)

A crane control system and method provides a way to generate crane commands responsive to a desired payload motion to achieve substantially pendulation-free actual payload motion. The control system and method apply a motion compensator to maintain a payload in a defined payload configuration relative to an inertial coordinate frame. The control system and method can further comprise a pendulation damper controller to reduce an amount of pendulation between a sensed payload configuration and the defined payload configuration. The control system and method can further comprise a command shaping filter to filter out a residual payload pendulation frequency from the desired payload motion.

Robinett, III, Rush D. (Tijeras, NM); Groom, Kenneth N. (Albuquerque, NM); Feddema, John T. (Albuquerque, NM); Parker, Gordon G. (Houghton, MI)

2002-01-01T23:59:59.000Z

38

Stirling engine control mechanism and method  

SciTech Connect

A reciprocating-to-rotating motion conversion and power control device for a Stirling engine includes a hub mounted on an offset portion of the output shaft for rotation relative to the shaft and for sliding motion therealong which causes the hub to tilt relative to the axis of rotation of the shaft. This changes the angle of inclination of the hub relative to the shaft axis and changes the axial stroke of a set of arms connected to the hub and nutating therewith. A hydraulic actuating mechanism is connected to the hub for moving its axial position along the shaft. A balancing wheel is linked to the hub and changes its angle of inclination as the angle of inclination of the hub changes to maintain the mechanism in perfect balance throughout its range of motion.

Dineen, John J. (Durham, NH)

1983-01-01T23:59:59.000Z

39

Nuclear reactor flow control method and apparatus  

DOE Patents (OSTI)

Method and apparatus for improving coolant flow in a nuclear reactor during accident as well as nominal conditions. The reactor has a plurality of fuel elements in sleeves and a plenum above the fuel and through which the sleeves penetrate. Holes are provided in the sleeve so that coolant from the plenum can enter the sleeve and cool the fuel. The number and size of the holes are varied from sleeve to sleeve with the number and size of holes being greater for sleeves toward the center of the core and less for sleeves toward the periphery of the core. Preferably the holes are all the same diameter and arranged in rows and columns, the rows starting from the bottom of every sleeve and fewer rows in peripheral sleeves and more rows in the central sleeves.

Church, John P. (1204 Woodbine Rd., Aiken, SC 29803)

1993-01-01T23:59:59.000Z

40

Texas Home Vegetable Gardening Guide  

E-Print Network (OSTI)

With this manual, home gardeners are sure to be successful growing vegetables. It includes information on garden planning, crop selection, soil preparation, fertilization, planting techniques, watering, pest control and harvesting. Tables show...

Masabni, Joseph

2009-02-24T23:59:59.000Z

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


41

Green and Sensitive Supercritical Fluid Chromatographic–Tandem Mass Spectrometric Method for the Separation and Determination of Flutriafol Enantiomers in Vegetables, Fruits, and Soil  

Science Journals Connector (OSTI)

Green and Sensitive Supercritical Fluid Chromatographic–Tandem Mass Spectrometric Method for the Separation and Determination of Flutriafol Enantiomers in Vegetables, Fruits, and Soil ... Typical conditions were as follows: the cone voltage of flutriafol was 24 V; m/z 302.2 was selected as the precursor ion for flutriafol, m/z 123.04 for its product quantitative ion, and m/z 70.05 for its qualitative ion when the collision energy was set at 28 and 58 V. ...

Yan Tao; Fengshou Dong; Jun Xu; Xingang Liu; Youpu Cheng; Na Liu; Zenglong Chen; Yongquan Zheng

2014-11-07T23:59:59.000Z

42

Vegetation | Open Energy Information  

Open Energy Info (EERE)

Vegetation Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleVegetation&oldid612270" Category: NEPA Resources...

43

New Method Gives Precise Control in Air Conditioning  

Science Journals Connector (OSTI)

The Niagara "Controlled Humidity Method" is a new system of air conditioning giving complete control of temperature and relative humidity, holding constant conditions or varying them at the will of the user. ... A condition of 15 grains o f moisture per pound of air at 85 dcg. ...

1950-01-09T23:59:59.000Z

44

New Method Gives Precise Control in Air Conditioning  

Science Journals Connector (OSTI)

•The Niagara "Controlled Humidity Method" is a new system of air conditioning giving complete control of temperature and relative humidity, holding constant conditions or varying them at the will of the user. ... A condition of 15 grains of moisture per pound of air at 85 deg. ...

1950-02-13T23:59:59.000Z

45

A new closed loop control method for HVDC transmission  

SciTech Connect

The paper presents a new closed loop control method which uses information locally available at each converter station and combines and coordinates control possibilities with the objective of improving the dynamic behavior during fault recoveries and disturbances around the operating points.

Karlecik-Maier, F. [Siemens AG, Erlangen (Germany)] [Siemens AG, Erlangen (Germany)

1996-10-01T23:59:59.000Z

46

Ground Water Ground Sky Sky Water Vegetation Ground Vegetation Water  

E-Print Network (OSTI)

Bear Snow Vegetation RhinoWater Vegetation Ground Water Ground Sky Sky Rhino Water Vegetation Ground Vegetation Water Rhino Water Vegetation Ground Rhino Water Rhino Water Ground Ground Vegetation Water Rhino Vegetation Rhino Vegetation Ground Rhino Vegetation Ground Sky Rhino Vegetation Ground Sky

Chen, Tsuhan

47

Hybrid Cascaded Multilevel Inverter with PWM Control Method  

E-Print Network (OSTI)

162 Hybrid Cascaded Multilevel Inverter with PWM Control Method Haiwen Liu1 , Leon M. Tolbert1, 2 inverter with PWM method is presented in this paper. It consists of a standard 3-leg inverter (one leg for each phase) and H-bridge in series with each inverter leg. It can use only a single DC power source

Tolbert, Leon M.

48

Online quality control methods for steam-gas reformers  

Science Journals Connector (OSTI)

This paper presents a classification of online quality control (QC) methods from the view of process control. The QC can be applied on the control loops from each of its three sides: the input (manipulative variable) side, the output (controlled variable) side and from the disturbance side. It was found that online QC can be direct or indirect, depending on the measures taken for quality. This classification can lead to interesting and new options for the control variables that otherwise would have been obscure. Once the proper control variable is selected (in terms of adequate representation of quality) it can be used for control systems analysis and design. Process application is presented for an industrial Steam Gas Reformer. The input is the fuel gas quality for which various options were presented. A correlation was obtained to relate heat input to simple measurements. The output hydrogen quality control options were discussed. Coil outlet temperature is adequate for a crude estimate of conversion, provided that S/C ratio is controlled. S/C ratio correlation was obtained to enable its estimation and control from simple measurements. A precise quality control of hydrogen can be achieved provided that COT is also controlled to protect reformer catalyst. An improved strategy can be implemented where both COT and conversion are controlled in a multivariable sense. This strategy is economically attractive, since it allows continuous manipulation of S/C ratio to the minimum required for COT control. Savings in fuel gas can be achieved accordingly. The feasibility of multivariable control was established via interaction analysis.

I.M. Alatiqi

1990-01-01T23:59:59.000Z

49

Vegetation Collections Project Page  

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

Vegetation Collections Vegetation Collections Vegetation Collections Overview Vegetation regulates the flow of numerous biogeochemical cycles, most critically those of water, carbon, and nitrogen; it is also of great importance in local and global energy balances. Vegetation collections data include: Biomass Biome Characteristics Litter Chemistry and Decomposition Geoecology Nutrient Concentration, Profiles, and Turnover Global Fire Emissions, Vegetation, and Leaf Area Index (LAI) Ecosystem Structure and Function Phenoregions Carbon Flux Vegetation Resources The following resources related to Vegetation Collections are maintained by the ORNL DAAC: Global Leaf Area Index Data Net Primary Production Project Get Vegetation Data Find and order data sets: See list of data sets and download data

50

Bringing fruit, vegetaBle and  

E-Print Network (OSTI)

Bringing fruit, vegetaBle and plant products into the uK Don't break the law check the rules before you travel securing our Border CONTROLLING MIGRATION #12;there are very strict controls on what fruit the list below), you can bring in any fruit, vegetables or plant products ­ as long as they are grown

Molinari, Marc

51

Process control monitoring systems, industrial plants, and process control monitoring methods  

DOE Patents (OSTI)

A system comprises a valve; a plurality of RFID sensor assemblies coupled to the valve to monitor a plurality of parameters associated with the valve; a control tag configured to wirelessly communicate with the respective tags that are coupled to the valve, the control tag being further configured to communicate with an RF reader; and an RF reader configured to selectively communicate with the control tag, the reader including an RF receiver. Other systems and methods are also provided.

Skorpik, James R [Kennewick, WA; Gosselin, Stephen R [Richland, WA; Harris, Joe C [Kennewick, WA

2010-09-07T23:59:59.000Z

52

5 - Mobile Robot Control I: The Lyapunov-Based Method  

Science Journals Connector (OSTI)

This chapter deals with the general problem of determining the forces and torques that must be developed by the robotic actuators in order for the robot to go at a desired position/posture, track a desired trajectory, and, in general, to perform some task with a desired quality of performance. The controllers to be presented in the chapter assume that the goal of the control and the robot dynamic parameters are precisely known, and if this goal (posture or path) is changing, the change is compatible with the environment, and risk free. The particular objectives of the chapter are (i) to provide a minimal set of general control concepts and methods that are used in robot control, (ii) to study the basic general robot controllers that are applicable to all types of robots, and (iii) to present a number of feedback controllers, designed using the Lyapunov-based control theory, for the differential drive, car-like, and omnidirectional mobile robots. These controllers refer to the problems of position (posture) tracking, trajectory tracking, parking, and leader following.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

53

A simple method to estimate actual evapotranspiration from a combination of net radiation, vegetation index, and temperature  

E-Print Network (OSTI)

and the dynamic nature of heat transfer processes. Satellite remote sensing is a promising tool which has been] Satellite remote sensing is a promising technique for estimating global or regional evapotranspiration (ET). A simple and accurate method is essential when estimating ET using remote sensing data. Such a method

Li, Zhanqing

54

Bonneville Power Administration Transmission System Vegetation Management Program - Final Environmental Impact Statement  

SciTech Connect

Bonneville is responsible for maintaining a network of 24,000 kilometers (km) or 15,000 miles (mi.) of electric transmission lines and 350 substations in a region of diverse vegetation. This vegetation can interfere with electric power flow, pose safety problems for us and the public, and interfere with our ability to maintain these facilities. We need to (1) keep vegetation away from our electric facilities; (2) increase our program efficiency and consistency; (3) review herbicide use (under increased public scrutiny); and (4) maximize the range of tools we can use while minimizing environmental impact (Integrated Vegetation Management). This Final Environmental Impact Statement (FEIS) establishes Planning Steps for managing vegetation for specific projects (to be tiered to this Environmental Impact Statement (EIS)). In addition to No Action (current practice), alternatives are presented for Rights-of-way, Electric Yards, and Non-electric Facilities (landscaping, work yards). Four vegetation control methods are analyzed manual, mechanical, herbicide, and biological. Also evaluated are 23 herbicide active ingredients and 4 herbicide application techniques (spot, localized, broadcast, and aerial). For rights-of-way, we consider three sets of alternatives: alternative management approaches (time-driven or establishing low-growing plant communities); alternative method packages; and, if herbicides are in a methods package, alternative vegetation selections (noxious weeds, deciduous, or any vegetation). For electric yards, one herbicide-use alternative is considered. For non-electric facilities, two method package alternatives are considered. For rights-of-way, the environmentally preferred alternative(s) would use manual, mechanical, and biological control methods, as well as spot and localized herbicide applications for noxious and deciduous plant species; the BPA-preferred alternative(s) would add broadcast and aerial herbicide applications, and would use herbicides on any vegetation. Both would favor a management approach that fosters low-growing plant communities.

N /A

2000-06-23T23:59:59.000Z

55

Controlled Lagrangian Methods and Tracking of Accelerated Motions  

E-Print Network (OSTI)

Controlled Lagrangian Methods and Tracking of Accelerated Motions Dmitry V. Zenkov* Department of uniformly accelerated motions of mechanical systems with symmetry. The theory is illustrated with a simple- grangians to the problem of stabilization of accelerated motions of Lagrangian mechanical systems with symme

Marsden, Jerrold

56

Controlled Lagrangian Methods and Tracking of Accelerated Motions  

E-Print Network (OSTI)

Controlled Lagrangian Methods and Tracking of Accelerated Motions Dmitry V. Zenkov* Department of uniformly accelerated motions of mechanical systems with symmetry. The theory is illustrated with a simple- grangians to the problem of stabilization of accelerated motions of Lagrangian mechanical systems

Zenkov, Dmitry

57

Computer controlled fluorometer device and method of operating same  

DOE Patents (OSTI)

A computer controlled fluorometer device and method of operating same, said device being made to include a pump flash source and a probe flash source and one or more sample chambers in combination with a light condenser lens system and associated filters and reflectors and collimators, as well as signal conditioning and monitoring means and a programmable computer means and a software programmable source of background irradiance that is operable according to the method of the invention to rapidly, efficiently and accurately measure photosynthetic activity by precisely monitoring and recording changes in fluorescence yield produced by a controlled series of predetermined cycles of probe and pump flashes from the respective probe and pump sources that are controlled by the computer means.

Kolber, Zbigniew (Shoreham, NY); Falkowski, Paul (Stony Brook, NY)

1990-01-01T23:59:59.000Z

58

Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices  

DOE Patents (OSTI)

Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices are described. In one aspect, an electrical power distribution control method includes providing electrical energy from an electrical power distribution system, applying the electrical energy to a load, providing a plurality of different values for a threshold at a plurality of moments in time and corresponding to an electrical characteristic of the electrical energy, and adjusting an amount of the electrical energy applied to the load responsive to an electrical characteristic of the electrical energy triggering one of the values of the threshold at the respective moment in time.

Chassin, David P. (Pasco, WA); Donnelly, Matthew K. (Kennewick, WA); Dagle, Jeffery E. (Richland, WA)

2006-12-12T23:59:59.000Z

59

Tension control of web of winder span using adaptive gain control method  

Science Journals Connector (OSTI)

One of the most important issues concerning the handling of the web in a roll-to-roll printing system is tension control of the web. In particular, the tension controls for the winders, including both the un-winder and re-winder, are required for the stable supply of the web and collecting of the printed electronic devices in the form of a roll without causing defects in the devices, respectively. The web tension control of the winder span requires time-variable control gains because the dynamics of the web vary with the winder roller radius. If fixed gains are used to control the web tension of the winder span regardless of changes in the radius of the winder roller, the tension could be unstable. Therefore, previous studies have tried to control the web tension of the winder span while considering the time-variable characteristics of the web dynamics by changing proportional-integral-derivative (PID) gains according to the roll radius or by applying adaptive control methods. However, most of these studies were limited to simulations. In this study, different types of fuzzy-PID controllers were applied to control winder tensions considering the dynamic characteristics of winders in a roll-to-roll system. A modified fuzzy-PID method is suggested that adjusts PID gains to correspond to changes in the dynamics of the web of the re-winder. PID gains based on these fuzzy rules vary within a range of positive values according to changes in the un-winder roller radius as opposed to the conventional fuzzy-PID controller, in which the fuzzy rules vary from negative to positive. On the other hand, the conventional fuzzy-PID controller is applied to the re-winder control to improve the response considering dynamics characteristics of re-winder that differs from that of re-winder. The proposed method was applied to the tension controls of the un-winder and re-winder of an actual roll-to-roll system and was verified through experiments. Both the simulation and experimental results showed that the proposed method can successfully control the web tension of winder systems.

Jong-Chan Park; Sung Woong Jeon; Ki Sang Nam; Lei Liu; Junfeng Sun; Chung Hwan Kim

2014-01-01T23:59:59.000Z

60

Method and apparatus for controlling gas evolution from chemical reactions  

DOE Patents (OSTI)

The present invention is directed toward monitoring a thermally driven gas evolving chemical reaction with an acoustic apparatus. Signals from the acoustic apparatus are used to control a heater to prevent a run-away condition. A digestion module in combination with a robotic arm further automate physical handling of sample material reaction vessels. The invention is especially useful for carrying out sample procedures defined in EPA Methods SW-846.

Skorpik, James R. (Kennewick, WA); Dodson, Michael G. (Richland, WA)

1999-01-01T23:59:59.000Z

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


61

Method and apparatus for controlling gas evolution from chemical reactions  

DOE Patents (OSTI)

The present invention is directed toward monitoring a thermally driven gas evolving chemical reaction with an acoustic apparatus. Signals from the acoustic apparatus are used to control a heater to prevent a run-away condition. A digestion module in combination with a robotic arm further automate physical handling of sample material reaction vessels. The invention is especially useful for carrying out sample procedures defined in EPA Methods SW-846. 8 figs.

Skorpik, J.R.; Dodson, M.G.

1999-05-25T23:59:59.000Z

62

Battery control system for hybrid vehicle and method for controlling a hybrid vehicle battery  

DOE Patents (OSTI)

A battery control system for controlling a state of charge of a hybrid vehicle battery includes a detecting arrangement for determining a vehicle operating state or an intended vehicle operating state and a controller for setting a target state of charge level of the battery based on the vehicle operating state or the intended vehicle operating state. The controller is operable to set a target state of charge level at a first level during a mobile vehicle operating state and at a second level during a stationary vehicle operating state or in anticipation of the vehicle operating in the stationary vehicle operating state. The invention further includes a method for controlling a state of charge of a hybrid vehicle battery.

Bockelmann, Thomas R. (Battle Creek, MI); Beaty, Kevin D. (Kalamazoo, MI); Zou, Zhanijang (Battle Creek, MI); Kang, Xiaosong (Battle Creek, MI)

2009-07-21T23:59:59.000Z

63

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-15)  

SciTech Connect

BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission lines. Work also includes clearing of a small (<1/4 mile) section of access road. All work will be in accordance with the National Electrical Safety Code and BPA standards. See Section 1.1 of the attached checklist for detailed information on each section of the referenced transmission lines. BPA will conduct the vegetation control with the goal of removing tall-growing vegetation that is currently or will soon be a hazard to the transmission lines and where possible to promote low-growing plant communities in the right-of-way. This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision (ROD). The vegetation needing control is mainly Douglas Fir, Alder, and blackberries as indicated in Section 1.2 of the attached checklist. The work involved in the ROW includes: clearing tall growing vegetation that is currently or will soon pose a hazard to the lines; treating the associated stumps and re-sprouts with herbicide to ensure that the roots are killed preventing new sprouts; and selectively eliminating tall growing vegetation before it reaches a height or density to begin competing with low-growing vegetation. All work will take place in existing rights-of-ways and around transmission structures. All work will be accomplished by selective vegetation control methods to assure that there is little potential harm to non-target vegetation and to low-growing plants. The work will provide system reliability and fire protection. Also, all off right-of-way trees that are potentially unstable and will fall within a minimum distance or into the zone where the conductors swing will be removed. Access roads will be treated using mowing and herbicide applications. The work will provide system reliability. The subject transmission lines range from 115kV to 230kV and are made up of accompanying access roads, steel and wooden transmission line structures and associated switching platforms. The minimum clearance ranges from 21 feet for 115kV lines to 23 feet for 230kV lines. ROW easement widths vary along the length of the project. Vegetation control for this project is designed to provide a 3 year maintenance free interval. In summary, the overall vegetation management scheme will be to selectively remove tall growing vegetation then apply selective herbicide treatment using cut stump applications.

N /A

2001-06-19T23:59:59.000Z

64

Control system and method for a universal power conditioning system  

SciTech Connect

A new current loop control system method is proposed for a single-phase grid-tie power conditioning system that can be used under a standalone or a grid-tie mode. This type of inverter utilizes an inductor-capacitor-inductor (LCL) filter as the interface in between inverter and the utility grid. The first set of inductor-capacitor (LC) can be used in the standalone mode, and the complete LCL can be used for the grid-tie mode. A new admittance compensation technique is proposed for the controller design to avoid low stability margin while maintaining sufficient gain at the fundamental frequency. The proposed current loop controller system and admittance compensation technique have been simulated and tested. Simulation results indicate that without the admittance path compensation, the current loop controller output duty cycle is largely offset by an undesired admittance path. At the initial simulation cycle, the power flow may be erratically fed back to the inverter causing catastrophic failure. With admittance path compensation, the output power shows a steady-state offset that matches the design value. Experimental results show that the inverter is capable of both a standalone and a grid-tie connection mode using the LCL filter configuration.

Lai, Jih-Sheng; Park, Sung Yeul; Chen, Chien-Liang

2014-09-02T23:59:59.000Z

65

Methods and apparatus for controlling dispersions of nanoparticles  

DOE Patents (OSTI)

Electrically reconfigurable metamaterial with spatially varied refractive index is proposed for applications such as optical devices and lenses. The apparatus and method comprises a metamaterial in which the refractive indices are modified in space and time by applying one or more electric fields. The metamaterials are electrically controllable and reconfigurable, and consist of metal (gold, silver, etc.) particles of different shapes, such as rods, with dimension much smaller than the wavelength of light, dispersed in a dielectric medium. The metamaterial is controlled by applying a non-uniform electric field that causes two effects: (1) It aligns the metallic anisometric particles with respect to the direction of the applied electric field and (2) It redistributes particles in space, making their local concentration position dependent.

Lavrentovich, Oleg D; Golovin, Andrii B

2014-10-21T23:59:59.000Z

66

Method of forming cavitated objects of controlled dimension  

DOE Patents (OSTI)

A method of controllably varying the dimensions of cavitated objects such as hollow spherical shells wherein a precursor shell is heated to a temperature above the shell softening temperature in an ambient atmosphere wherein the ratio of gases which are permeable through the shell wall at that temperature to gases which are impermeable through the shell wall is substantially greater than the corresponding ratio for gases contained within the precursor shell. As the shell expands, the partial pressures of permeable gases internally and externally of the shell approach and achieve equilibrium, so that the final shell size depends solely upon the difference in impermeable gas partial pressures and shell surface tension.

Anderson, Paul R. (Toledo, OH); Miller, Wayne J. (Ann Arbor, MI)

1982-01-01T23:59:59.000Z

67

Method of forming cavitated objects of controlled dimension  

DOE Patents (OSTI)

A method is disclosed of controllably varying the dimensions of cavitated objects such as hollow spherical shells wherein a precursor shell is heated to a temperature above the shell softening temperature in an ambient atmosphere wherein the ratio of gases which are permeable through the shell wall at that temperature to gases which are impermeable through the shell wall is substantially greater than the corresponding ratio for gases contained within the precursor shell. As the shell expands, the partial pressures of permeable gases internally and externally of the shell approach and achieve equilibrium, so that the final shell size depends solely upon the difference in impermeable gas partial pressures and shell surface tension.

Anderson, P.R.; Miller, W.J.

1981-02-11T23:59:59.000Z

68

A comparative study of avionics control input methods  

E-Print Network (OSTI)

Standardization of avionics locations in early models of small general aviation aircraft was almost non-existent, due largely to limited panel space and lack of human engineering considerations. Aircraft were typically purchased with a limited avionics package... Major Subject: Industrial Engineering A COMPARATIVE STUDY OF AVIONICS CONTROL INPUT METHODS A Thesis by JOHN ROBERT BARBER, JR. Approved as to style and content by: C airman of C ittee Dr. R. Dale H ingson Co-ch i n Dr. Rodger J. Koppa Member...

Barber, John Robert

1984-01-01T23:59:59.000Z

69

System and method for controlling a combustor assembly  

DOE Patents (OSTI)

A system and method for controlling a combustor assembly are disclosed. The system includes a combustor assembly. The combustor assembly includes a combustor and a fuel nozzle assembly. The combustor includes a casing. The fuel nozzle assembly is positioned at least partially within the casing and includes a fuel nozzle. The fuel nozzle assembly further defines a head end. The system further includes a viewing device configured for capturing an image of at least a portion of the head end, and a processor communicatively coupled to the viewing device, the processor configured to compare the image to a standard image for the head end.

York, William David; Ziminsky, Willy Steve; Johnson, Thomas Edward; Stevenson, Christian Xavier

2013-03-05T23:59:59.000Z

70

Sway control method and system for rotary cranes  

DOE Patents (OSTI)

Methods and apparatuses for reducing the oscillatory motion of rotary crane payloads during operator-commanded or computer-controlled maneuvers. An Input-shaping filter receives input signals from multiple operator input devices and converts them into output signals readable by the crane controller to dampen the payload tangential and radial sway associated with rotation of the jib. The input signals are characterized by a hub rotation trajectory .gamma.(t), which includes a jib angular acceleration .gamma., a trolley acceleration x, and a load-line length velocity L. The system state variables are characterized by a tangential rotation angle .theta.(t) and a radial rotation angle .phi.(t) of the load-line. The coupled equations of motion governing the filter are non-linear and configuration-dependent. In one embodiment, a filter is provided between the operator and the crane for filtering undesired frequencies from the angular .gamma. and trolley x velocities to suppress payload oscillation. In another embodiment, crane commands are computer generated and controlled to suppress vibration of the payload using a postulated asymmetrical shape for the acceleration profiles of the jib, which profiles are uniquely determined by a set of parameters (including the acceleration pulse amplitude and the duration and coast time between pulses), or a dynamic programming approach.

Robinett, Rush D. (Tijeras, NM); Parker, Gordon G. (Houghton, MI); Feddema, John T. (Albuquerque, NM); Dohrmann, Clark R. (Albuquerque, NM); Petterson, Ben J. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

71

Sky Vegetables | Open Energy Information  

Open Energy Info (EERE)

Vegetables Vegetables Jump to: navigation, search Name Sky Vegetables Address 45 Rosemary Street, Suite F Place Needham, MA Zip 02494 Sector Solar Website http://www.skyvegetables.com/i Coordinates 42.2882945°, -71.2335259° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.2882945,"lon":-71.2335259,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

72

Method for controlling exhaust gas heat recovery systems in vehicles  

DOE Patents (OSTI)

A method of operating a vehicle including an engine, a transmission, an exhaust gas heat recovery (EGHR) heat exchanger, and an oil-to-water heat exchanger providing selective heat-exchange communication between the engine and transmission. The method includes controlling a two-way valve, which is configured to be set to one of an engine position and a transmission position. The engine position allows heat-exchange communication between the EGHR heat exchanger and the engine, but does not allow heat-exchange communication between the EGHR heat exchanger and the oil-to-water heat exchanger. The transmission position allows heat-exchange communication between the EGHR heat exchanger, the oil-to-water heat exchanger, and the engine. The method also includes monitoring an ambient air temperature and comparing the monitored ambient air temperature to a predetermined cold ambient temperature. If the monitored ambient air temperature is greater than the predetermined cold ambient temperature, the two-way valve is set to the transmission position.

Spohn, Brian L.; Claypole, George M.; Starr, Richard D

2013-06-11T23:59:59.000Z

73

Climate change and Ecotone boundaries: Insights from a cellular automata ecohydrology model in a Mediterranean catchment with topography controlled vegetation patterns  

Science Journals Connector (OSTI)

Abstract Regions of vegetation transitions (ecotones) are known to be highly sensitive to climate fluctuations. In this study, the Cellular-Automata Tree Grass Shrub Simulator (CATGraSS) has been modified, calibrated and used with downscaled future climate scenarios to examine the role of climate change on vegetation patterns in a steep mountainous catchment (1.3 km2) located in Sicily, Italy. In the catchment, north-facing slopes are mostly covered by trees and grass, and south-facing slopes by Indian Fig opuntia and grass, with grasses dominating as elevation grows. \\{CATGraSS\\} simulates solar radiation, evapotranspiration, and soil moisture in space and time. Each model cell can hold a single plant type or can be bare soil. Plant competition is modeled explicitly through mortality and the establishment of individual plants in open spaces. In this study, \\{CATGraSS\\} is modified to account for heterogeneity in soil thickness and tested in the study catchment using the historical climate of the region. Predicted vegetation patterns are compared with those obtained from satellite images. Results of model under current climate underscore the importance of solar irradiance and soil thickness, especially in the uplands where soil is shallow, in determining vegetation composition over complex terrain. A stochastic weather generator is used to generate future climate change scenarios for the catchment by downscaling GCM realizations in space and time. Future increase in atmospheric CO2 concentration was considered through modifying the vegetation water use efficiency and stomatal resistance for our study site. Model results suggest that vegetation pattern is highly sensitive to temperature and rainfall variations provided by climate scenarios (30% reduction of the annual precipitation and a 2.8 °C increase of the mean annual temperature). Future climate change is predicted to bring a considerable reorganization of the plant composition following topographic patterns, leading to a decrease of trees cover at the expenses of a grass expansion, which will cause loss of landscape vegetation diversity.

Domenico Caracciolo; Leonardo Valerio Noto; Erkan Istanbulluoglu; Simone Fatichi; Xiaochi Zhou

2014-01-01T23:59:59.000Z

74

Comparison of advanced distillation control methods. First annual report  

SciTech Connect

A detailed dynamic simulator of a propylene/propane (C{sub 3}) splitter, which was bench-marked against industrial data, has been used to compare dual composition control performance for a diagonal PI controller and several advanced controllers. The advanced controllers considered are dynamic matrix control (DMC), nonlinear process model based control, and artificial neutral networks. Each controller was tuned based upon setpoint changes in the overhead product composition using 50% changes in the impurity levels. Overall, there was not a great deal of difference in controller performance based upon the setpoint and disturbance tests. Periodic step changes in feed composition were also used to compare controller performance. In this case, oscillatory variations of the product composition were observed and the variabilities of the DC and nonlinear process model based controllers were substantially smaller than that of the PI controller. The sensitivity of each controller to the frequency of the periodic step changes in feed composition was also investigated.

Riggs, J.B.

1996-11-01T23:59:59.000Z

75

Comparison of advanced distillation control methods. First annual report  

SciTech Connect

A detailed dynamic simulator of a propylene/propane (C3) splitter, which was bench-marked against industrial data, has been used to compare dual composition control performance for a diagonal PI controller and several advanced controllers. The advanced controllers considered are DMC, nonlinear process model based control, and articial neutral networks. Each controller was tuned based upon setpoint changes in the overhead product composition using 50% changes in the impurity levels. Overall, there was not a great deal of difference in controller performance based upon the setpoint and disturbance tests. Periodic step changes in feed composition were also used to compare controller performance. In this case, oscillatory variations of the product composition were observed and the variabilities of the DMC and nonlinear process model based controllers were substantially smaller than that of the PI controller. The sensitivity of each controller to the frequency of the periodic step changes in feed composition was also investigated.

NONE

1996-11-01T23:59:59.000Z

76

E-Print Network 3.0 - advanced control methods Sample Search...  

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

network is largely deter- mined by its flow-control: the method used... -the-fly scheduling of existing flow-control methods idles each buffer for a considerable period...

77

Method for continuous control of composition and doping of pulsed laser deposited films by pressure control  

DOE Patents (OSTI)

A method for growing a deposit upon a substrate of semiconductor material involves the utilization of pulsed laser deposition techniques within a low-pressure gas environment. The substrate and a target of a first material are positioned within a deposition chamber and a low-pressure gas atmosphere is developed within the chamber. The substrate is then heated, and the target is irradiated, so that atoms of the target material are ablated from the remainder of the target, while atoms of the gas simultaneously are adsorbed on the substrate/film surface. The ablated atoms build up upon the substrate, together with the adsorbed gas atoms to form the thin-film deposit on the substrate. By controlling the pressure of the gas of the chamber atmosphere, the composition of the formed deposit can be controlled, and films of continuously variable composition or doping can be grown from a single target of fixed composition.

Lowndes, Douglas H. (Knoxville, TN); McCamy, James W. (Knoxville, TN)

1996-01-01T23:59:59.000Z

78

A Markovian model for the hybrid manufacturing planning and control method 'Double Speed Single Production Line'  

Science Journals Connector (OSTI)

In this paper, the hybrid production planning & control method Double Speed Single Production Line (DSSPL) is presented, modelled and its performances evaluated and compared to classical Production Planning and Control methods (PPC). DSSPL combines JIT/kanban ... Keywords: Double Speed Single Production Line, Hybrid manufacturing planning & control method, Industrial case study, Markov processes

Naoufel Cheikhrouhou; Christoph Hachen; Rémy Glardon

2009-10-01T23:59:59.000Z

79

Nonlinear Characteristics of Wave Propagation over Vegetation  

E-Print Network (OSTI)

The attenuation of wave energy by submerged or near-emergent coastal vegetation is one of the prominent methods of energy dissipation in areas with significant presence of wetlands. In this thesis, the nature of this dissipation in nearshore random...

Venkattaramanan, Aravinda

2014-04-28T23:59:59.000Z

80

Comparison of Advanced Distillation Control Methods, Final Technical Report  

SciTech Connect

Detailed dynamic simulations of three industrial distillation columns (a propylene/propane splitter, a xylene/toluene column, and a depropanizer) have been used to evaluate configuration selections for single-ended and dual-composition control, as well as to compare conventional and advanced control approaches. In addition, a simulator of a main fractionator was used to compare the control performance of conventional and advanced control. For each case considered, the controllers were tuned by using setpoint changes and tested using feed composition upsets. Proportional Integral (PI) control performance was used to evaluate the configuration selection problem. For single ended control, the energy balance configuration was found to yield the best performance. For dual composition control, nine configurations were considered. It was determined that the use of dynamic simulations is required in order to identify the optimum configuration from among the nine possible choices. The optimum configurations were used to evaluate the relative control performance of conventional PI controllers, MPC (Model Predictive Control), PMBC (Process Model-Based Control), and ANN (Artificial Neural Networks) control. It was determined that MPC works best when one product is much more important than the other, while PI was superior when both products were equally important. PMBC and ANN were not found to offer significant advantages over PI and MPC. MPC was found to outperform conventional PI control for the main fractionator. MPC was applied to three industrial columns: one at Phillips Petroleum and two at Union Carbide. In each case, MPC was found to significantly outperform PI controls. The major advantage of the MPC controller is its ability to effectively handle a complex set of constraints and control objectives.

Dr. James B. Riggs

2000-11-30T23:59:59.000Z

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


81

Method of achieving the controlled release of thermonuclear energy  

DOE Patents (OSTI)

A method of achieving the controlled release of thermonuclear energy by illuminating a minute, solid density, hollow shell of a mixture of material such as deuterium and tritium with a high intensity, uniformly converging laser wave to effect an extremely rapid build-up of energy in inwardly traveling shock waves to implode the shell creating thermonuclear conditions causing a reaction of deuterons and tritons and a resultant high energy thermonuclear burn. Utilizing the resulting energy as a thermal source and to breed tritium or plutonium. The invention also contemplates a laser source wherein the flux level is increased with time to reduce the initial shock heating of fuel and provide maximum compression after implosion; and, in addition, computations and an equation are provided to enable the selection of a design having a high degree of stability and a dependable fusion performance by establishing a proper relationship between the laser energy input and the size and character of the selected material for the fusion capsule.

Brueckner, Keith A. (Ann Arbor, MI)

1986-01-01T23:59:59.000Z

82

Advance of Systematic Design Methods on Fuzzy Control  

E-Print Network (OSTI)

The heating, ventilation and air-conditioning (HVAC) system possesses some characteristics such as multi-parameters, nonlinear, and coupled parameters. Aimed at control problems, the author targets real-time fuzzy control and research systematically...

Zhang, J.; Chen, Y.

2006-01-01T23:59:59.000Z

83

9 - Mobile Robot Control V: Vision-Based Methods  

Science Journals Connector (OSTI)

Vision is an important robotic sensor since it can be used for environment measurement without physical contact. Visual robot control or visual servoing is a feedback control methodology that uses one or more vision sensors (cameras) to control the motion of the robot. Specifically, the control inputs for the robot motors are produced by processing image data (typically, extraction of contours, features, corners, and other visual primitives). In robotic manipulators, the purpose of visual control is to control the pose of the robot’s end-effector relative to a target object or a set of target features. In mobile robots, the vision controller’s task is to control the vehicle’s pose with respect to some landmarks. The objectives of this chapter are (i) to present the basic aspects of visual servoing (camera visual transformations, image Jacobian matrix), (ii) to discuss the position-based and image-based visual-control problems, (iii) to apply visual servoing to a number of selected mobile robot control problems, and (iv) to study mobile robot visual servoing using omnidirectional vision.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

84

Comparison of advanced distillation control methods. Fourth annual report  

SciTech Connect

Detailed dynamic simulations of three industrial columns (a propylene/propane splitter, a xylene/toluene column, and a depropanizer) have been used to evaluate configuration selection for single-ended and dual-composition control as well as compare conventional and advanced control approaches. For each case considered, the controllers were tuned by using setpoint changes and tested using feed composition upsets. Proportional Integral (PI) control performance was used to evaluate the configuration selection problem. For single ended control, the energy balance configuration was found to yield the best performance. For dual composition control, nine configurations were considered. It was determined that in order to identify the optimum configuration, detailed testing using dynamic simulation is required. The optimum configurations were used to evaluate the control performance of conventional PI controllers, DMC (Dynamic Matrix Control), PMBC (Process Model Based Control), and ANN (Artificial Neural Networks) control. It was determined that DMC works best when one product is much more important than the other while PI was superior when both products were equally important. PMBC and ANN were not found to offer significant advantages over PI and DMC.

Riggs, J.B.

1998-09-01T23:59:59.000Z

85

An application of predictive vegetation mapping to mountain vegetation in Sweden  

E-Print Network (OSTI)

community data as the dependent variable and various environmental data as the independent variables thought to control or correlate with vegetation distributions. The environmental data were either obtained from existing digital datasets or derived from...

Green, Janet Alexis

2006-04-12T23:59:59.000Z

86

Control and optimization system and method for chemical looping processes  

DOE Patents (OSTI)

A control system for optimizing a chemical loop system includes one or more sensors for measuring one or more parameters in a chemical loop. The sensors are disposed on or in a conduit positioned in the chemical loop. The sensors generate one or more data signals representative of an amount of solids in the conduit. The control system includes a data acquisition system in communication with the sensors and a controller in communication with the data acquisition system. The data acquisition system receives the data signals and the controller generates the control signals. The controller is in communication with one or more valves positioned in the chemical loop. The valves are configured to regulate a flow of the solids through the chemical loop.

Lou, Xinsheng; Joshi, Abhinaya; Lei, Hao

2014-06-24T23:59:59.000Z

87

Quantitative Methods for Comparing Different HVAC Control Schemes  

E-Print Network (OSTI)

Experimentally comparing the energy usage and comfort characteristics of different controllers in heating, ventilation, and air-conditioning (HVAC) systems is difficult because variations in weather and occupancy conditions preclude the possibility of establishing equivalent experimental conditions across the order of hours, days, and weeks. This paper is concerned with defining quantitative metrics of energy usage and occupant comfort, which can be computed and compared in a rigorous manner that is capable of determining whether differences between controllers are statistically significant in the presence of such environmental fluctuations. Experimental case studies are presented that compare two alternative controllers (a schedule controller and a hybrid system learning-based model predictive controller) to the default controller in a building-wide HVAC system. Lastly, we discuss how our proposed methodology may also be able to quantify the efficiency of other building automation systems.

Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

2012-01-01T23:59:59.000Z

88

Control system and method for a hybrid electric vehicle  

DOE Patents (OSTI)

A vehicle system controller (20) is presented for a LSR parallel hybrid electric vehicle having an engine (10), a motor (12), wheels (14), a transmission (16) and a battery (18). The vehicle system controller (20) has a state machine having a plurality of predefined states (22-32) that represent operating modes for the vehicle. A set of rules is defined for controlling the transition between any two states in the state machine. The states (22-32) are prioritized according to driver demands, energy management concerns and system fault occurrences. The vehicle system controller (20) controls the transitions from a lower priority state to a higher priority state based on the set of rules. In addition, the vehicle system controller (20) will control a transition to a lower state from a higher state when the conditions no longer warrant staying in the current state. A unique set of output commands is defined for each state for the purpose of controlling lower level subsystem controllers. These commands serve to achieve the desire vehicle functionality within each state and insure smooth transitions between states.

Phillips, Anthony Mark (Northville, MI); Blankenship, John Richard (Dearborn, MI); Bailey, Kathleen Ellen (Dearborn, MI); Jankovic, Miroslava (Birmingham, MI)

2001-01-01T23:59:59.000Z

89

Identification and Adaptive Control Methods for Some Stochastic Systems  

E-Print Network (OSTI)

of adaptive control procedure. At each time t; the process xt is observed based upon its value, the control ut is selected from a set U. The parameter has the constant value 0 which is not known in advance. It is known, however, that 0 belongs to a xed... nite set I or a compact set. The following adaptive control is considered. At each time t the estimate ^ t of the unknown parameter is made. Having the estimate ^ t the control action is selected to be ut = (^ t;xt). One of the most interesting...

Zachariou, Ioannis

2011-02-21T23:59:59.000Z

90

Tandem robot control system and method for controlling mobile robots in tandem  

SciTech Connect

A control system for controlling mobile robots provides a way to control mobile robots, connected in tandem with coupling devices, to navigate across difficult terrain or in closed spaces. The mobile robots can be controlled cooperatively as a coupled system in linked mode or controlled individually as separate robots.

Hayward, David R. (Albuquerque, NM); Buttz, James H. (Albuquerque, NM); Shirey, David L. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

91

Research on fuzzy logic based dynamic boundary voltage and reactive power integrated control method  

Science Journals Connector (OSTI)

Aiming at the existing problems of conventional substation voltage and reactive power integrated control method, a new fuzzy logic based dynamic reactive power boundary voltage and reactive power integrated control method is proposed. Fuzzy logic control ... Keywords: dynamic boundary, fuzzy logic, reactive power, voltage

Zigang Xu; Fei Wang

2009-06-01T23:59:59.000Z

92

8 - Mobile Robot Control IV: Fuzzy and Neural Methods  

Science Journals Connector (OSTI)

Fuzzy logic systems (or, simply, fuzzy systems, FSs) and neural networks are universal approximators, that is, they can approximate any nonlinear function (mapping) with any desired accuracy, and have found wide application in the identification, planning, and model-free control of complex nonlinear systems, such as robotic systems and industrial processes. Fuzzy logic offers a linguistic (approximate) way of drawing conclusions from uncertain data, and neural networks offer the capability of learning and training with or without a teacher (supervisor). The objectives of this chapter are the following: (i) to provide a brief introduction to neural networks and fuzzy systems, (ii) to derive and discuss the general structure of fuzzy and neural robot controllers, (iii) to provide the details of mobile (nonholonomic) fuzzy tracker controller design, (iv) to fuzzy the model-based sliding mode controller and apply it to mobile robots, and (v) to solve the mobile adaptive tracking controller design problem using multilayer perceptrons and radial basis function neural networks.

Spyros G. Tzafestas

2014-01-01T23:59:59.000Z

93

Comparison of advanced distillation control methods. Third annual report  

SciTech Connect

Detailed dynamic simulations of three industrial distillation columns (a propylene/propane splitter, a xylene/toluene column, and a depropanizer) have been used to study the issue of configuration selection for diagonal PI dual composition controls, feedforward from a feed composition analyzer, and decouplers. Auto Tune Variation (ATV) identification with on-line detuning for setpoint changes was used for tuning the diagonal proportional integral (PI) composition controls. In addition, robustness tests were conducted by inducting reboiler duty upsets. For single composition control, the (L, V) configuration was found to be best. For dual composition control, the optimum configuration changes from one column to another. Moreover, the use of analysis tools, such as RGA, appears to be of little value in identifying the optimum configuration for dual composition control. Using feedforward from a feed composition analyzer and using decouplers are shown to offer significant advantages for certain specific cases.

Riggs, J.B.

1997-07-01T23:59:59.000Z

94

Diesel Engine Advanced Multi-Mode Combustion Control and Generalized Nonlinear Transient Trajectory Shaping Control Methods.  

E-Print Network (OSTI)

?? This dissertation addresses the Diesel engine advanced combustion mode switching transient control and the generalized nonlinear non-equilibrium transient trajectory shaping (NETTS) control problem.Control-oriented models… (more)

Yan, Fengjun

2012-01-01T23:59:59.000Z

95

Method and apparatus for controlling carrier envelope phase  

DOE Patents (OSTI)

A chirped pulse amplification laser system. The system generally comprises a laser source, a pulse modification apparatus including first and second pulse modification elements separated by a separation distance, a positioning element, a measurement device, and a feedback controller. The laser source is operable to generate a laser pulse and the pulse modification apparatus operable to modify at least a portion of the laser pulse. The positioning element is operable to reposition at least a portion of the pulse modification apparatus to vary the separation distance. The measurement device is operable to measure the carrier envelope phase of the generated laser pulse and the feedback controller is operable to control the positioning element based on the measured carrier envelope phase to vary the separation distance of the pulse modification elements and control the carrier envelope phase of laser pulses generated by the laser source.

Chang, Zenghu (Manhattan, KS); Li, Chengquan (Sunnyvale, CA); Moon, Eric (Manhattan, KS)

2011-12-06T23:59:59.000Z

96

Literature Review of Mobility Control Methods for CO2  

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

great insight and leadership in the areas of mobility and conformance control in gas and oil flooding, although much work remains to make the technology practical. This work was...

97

Method and apparatus for controlling hybrid powertrain system in response to engine temperature  

DOE Patents (OSTI)

A method for controlling a hybrid powertrain system including an internal combustion engine includes controlling operation of the hybrid powertrain system in response to a preferred minimum coolant temperature trajectory for the internal combustion engine.

Martini, Ryan D; Spohn, Brian L; Lehmen, Allen J; Cerbolles, Teresa L

2014-10-07T23:59:59.000Z

98

Fire Ant Control: The Two-Step Method and Other Approaches  

E-Print Network (OSTI)

There may not be one "best way to control fire ants, but this publication can help you find the most cost-effective and environmentally sound method for each situation. It includes information on fire ant identification, control products...

Drees, Bastiaan M.; Schofield, Kimberly; Brown, Elizabeth; Nester, Paul; Keck, Molly; Flanders, K.

2008-03-27T23:59:59.000Z

99

Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles  

DOE Patents (OSTI)

A method for controlling the size of chemically synthesized magnetic nanoparticles that employs magnetic interaction between particles to control particle size and does not rely on conventional kinetic control of the reaction to control particle size. The particles are caused to reversibly agglomerate and precipitate from solution; the size at which this occurs can be well controlled to provide a very narrow particle size distribution. The size of particles is controllable by the size of the surfactant employed in the process; controlling the size of the surfactant allows magnetic control of the agglomeration and precipitation processes. Agglomeration is used to effectively stop particle growth to provide a very narrow range of particle sizes.

Huber, Dale L. (Albuquerque, NM)

2011-07-05T23:59:59.000Z

100

Continuously proportional variable geometry turbocharger system and method of control  

SciTech Connect

This patent describes a system for performing closed loop control of a variable geometry turbocharger (VGT) utilized in an internal combustion engine. It comprises VGT actuator means for changing the geometric configuration of the VGT in response to an actuator control signal; sensor means for detecting selected engine operating parameters including a VGT actuator parameter and an engine intake manifold parameter, and generating output signals representative thereof; means for outputting a target VGT actuator parameter value and a target intake manifold parameter valve based on the values of selected sensor means output signals; means for determining whether the engine is in a steady state or a transient state of operation based on the values of selected sensor means output signals; and means for developing an actuator control signal based on one of the target parameter values as a function of the determined engine operating state.

Younessi, R.; Rini, G.T.

1992-06-23T23:59:59.000Z

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


101

Method and apparatus for controlling accidental releases of tritium  

DOE Patents (OSTI)

An improvement is described in a tritium control system based on a catalytic oxidation reactor wherein accidental releases of tritium into room air are controlled by flooding the catalytic oxidation reactor with hydrogen when the tritium concentration in the room air exceeds a specified limit. The sudden flooding with hydrogen heats the catalyst to a high temperature within seconds, thereby greatly increasing the catalytic oxidation rate of tritium to tritiated water vapor. Thus, the catalyst is heated only when needed. In addition to the heating effect, the hydrogen flow also swamps the tritium and further reduces the tritium release. 1 fig.

Galloway, T.R.

1980-04-01T23:59:59.000Z

102

Method of controlling crystallite size in nuclear-reactor fuels  

DOE Patents (OSTI)

Improved spherules for making enhanced forms of nuclear-reactor fuels are prepared by internal gelation procedures within a sol-gel operation and are accomplished by first boiling the concentrated HMTA-urea feed solution before engaging in the spherule-forming operation thereby effectively controlling crystallite size in the product spherules.

Lloyd, Milton H. (Oak Ridge, TN); Collins, Jack L. (Knoxville, TN); Shell, Sam E. (Oak Ridge, TN)

1985-01-01T23:59:59.000Z

103

Forecast and Control Methods of Landfill Emission Gas to Atmosphere  

Science Journals Connector (OSTI)

The main component of landfill gas is CH4, its release is a potential hazard to the environment. To understand the gas law and landfill gas production are the prerequisite for effective control of landfill gas. This paper selects three kinds of typical ... Keywords: Landfill gas, German model, IPCC model, Marticorena dynamic model

Wang Qi; Yang Meihua; Wang Jie

2011-02-01T23:59:59.000Z

104

A New Method for Controlling the Trajectory of Stratospheric Satellite  

Science Journals Connector (OSTI)

A stratospheric satellite flies from east to west around the earth in the stratosphere, and a certain number of stratospheric satellites make up the global stratospheric balloon constellation. This paper presents the stratospheric satellite's trajectory ... Keywords: stratospheric satellite, trajectory control, super-pressure helium balloon, stratosail

Fu Wenxing; Zhu Supeng; Zuo Liankai; Zhu Yanda

2009-11-01T23:59:59.000Z

105

Rotating vector methods for smooth torque control of a switched reluctance motor drive  

SciTech Connect

This paper has two primary contributions to switched reluctance motor (SRM) control: a systematic approach to smooth torque production and a high-performance technique for sensorless motion control. The systematic approach to smooth torque production is based on development of novel rotating spatial vectors methods that can be used to predict the torque produced in an arbitrary SRM. This analysis directly leads to explicit, insightful methods to provide smooth torque control of SRM's. The high-performance technique for sensorless motion control is based on a rotating vector method for high bandwidth, high resolution, position, and velocity estimation suitable for both precise torque and motion control. The sensorless control and smooth torque control methods are both verified experimentally.

Nagel, N.J.; Lorenz, R.D.

2000-04-01T23:59:59.000Z

106

Novel plasma control method in PECVD for preparing microcrystalline silicon  

SciTech Connect

A novel plasma enhanced vapor deposition (PECVD) technique employing biased wall (BW) method has been developed for the enhanced growth rate of the hydrogenated microcrystalline silicon ({micro}c-Si:H) films. Using this method, the authors have achieved a growth rate of more than 6{angstrom}/sec for the formation of {micro}c-Si:H having an average grain size of 200{angstrom} at 350 C.

Nishimiya, T.; Kondo, M.; Matsuda, A.

1997-07-01T23:59:59.000Z

107

Ultrafast laser based coherent control methods for explosives detection  

SciTech Connect

The detection of explosives is a notoriously difficult problem, especially at stand-off, due to their (generally) low vapor pressure, environmental and matrix interferences, and packaging. We are exploring Optimal Dynamic Detection of Explosives (ODD-Ex), which exploits the best capabilities of recent advances in laser technology and recent discoveries in optimal shaping of laser pulses for control of molecular processes to significantly enhance the standoff detection of explosives. The core of the ODD-Ex technique is the introduction of optimally shaped laser pulses to simultaneously enhance sensitivity to explosives signatures while dramatically improving specificity, particularly against matrix materials and background interferences. These goals are being addressed by operating in an optimal non-linear fashion, typically with a single shaped laser pulse inherently containing within it coherently locked control and probe subpulses. Recent results will be presented.

Moore, David Steven [Los Alamos National Laboratory

2010-12-06T23:59:59.000Z

108

Vegetable Gardening in Containers  

E-Print Network (OSTI)

This 7 page publications explains how to grow vegetables in containers when insufficient space or unsutable soil conditions make a traditional garden difficult to achieve. Topics include: container materials, crop selection, growing media, seeding...

Masabni, Joseph; Cotner, Sam

2009-02-25T23:59:59.000Z

109

Methods of Verification, Accountability and Control of Special Nuclear Material  

SciTech Connect

This session demonstrates nondestructive assay (NDA) measurement, surveillance and analysis technology required to protect, control and account (MPC and A) for special nuclear materials (SNM) in sealed containers. These measurements, observations and analyses comprise state-of-the art, strengthened, SNM safeguards systems. Staff member specialists, actively involved in research, development, training and implementation worldwide, will present six NDA verification systems and two software tools for integration and analysis of facility MPC and A data.

Stewart, J.E.

1999-05-03T23:59:59.000Z

110

Comparison of advanced distillation control methods. Second annual report  

SciTech Connect

Detailed dynamic simulations of two industrial distillation columns (a propylene/propane splitter and a xylene/toluene column) have been used to study the issue of configuration selection for diagonal PI dual composition controls. Auto Tune Variation (ATV) identification with on-line detuning was used for tuning the diagonal proportional integral (PI) composition controls. Each configuration was evaluated with respect to steady-state relative gain array (RGA) values, sensitivity to feed composition changes, and open loop dynamic performance. Each configuration was tuned using setpoint changes over a wider range of operation for robustness and tested for feed composition upsets. Overall, configuration selection was shown to have a dominant effect upon control performance. Configuration analysis tools (e.g., RGA, condition number, disturbance sensitivity) were found to reject configuration choices that are obviously poor choices, but were unable to critically differentiate between the remaining viable choices. Configuration selection guidelines are given although it is demonstrated that the most reliable configuration selection approach is based upon testing the viable configurations using dynamic column simulators.

Riggs, J.B.

1996-11-01T23:59:59.000Z

111

Comparison of advanced distillation control methods. Second annual report  

SciTech Connect

Detailed dynamic simulations of three industrial distillation columns (a propylene/propane splitter, a xylene/toluene column, and a depropanizer) have been used to study the issue of configuration selection for diagonal PI dual composition controls. ATV identification with on-line detuning was used for tuning the diagonal PI composition controllers. Each configuration was evaluated with respect to steady-state RGA values, sensitivity to feed composition changes, and open loop dynamic performance. Each configuration was tuned using setpoint changes over a wider range of operation for robustness and tested for feed composition upsets. Overall, configuration selection was shown to have a dominant effect upon control performance. Configuration analysis tools (e.g., RGA, condition number, disturbance sensitivity), were found to reject configuration choices that are obviously poor choices, but were unable to critically differentiate between the remaining viable choices. Configuration selection guidelines are given although it is demonstrated that the most reliable configuration selection approach is based upon testing the viable configurations using dynamic column simulators.

NONE

1996-11-01T23:59:59.000Z

112

Model predictive control system and method for integrated gasification combined cycle power generation  

SciTech Connect

Control system and method for controlling an integrated gasification combined cycle (IGCC) plant are provided. The system may include a controller coupled to a dynamic model of the plant to process a prediction of plant performance and determine a control strategy for the IGCC plant over a time horizon subject to plant constraints. The control strategy may include control functionality to meet a tracking objective and control functionality to meet an optimization objective. The control strategy may be configured to prioritize the tracking objective over the optimization objective based on a coordinate transformation, such as an orthogonal or quasi-orthogonal projection. A plurality of plant control knobs may be set in accordance with the control strategy to generate a sequence of coordinated multivariable control inputs to meet the tracking objective and the optimization objective subject to the prioritization resulting from the coordinate transformation.

Kumar, Aditya; Shi, Ruijie; Kumar, Rajeeva; Dokucu, Mustafa

2013-04-09T23:59:59.000Z

113

Experimental comparison of torque control methods on an ankle exoskeleton during human walking  

E-Print Network (OSTI)

Experimental comparison of torque control methods on an ankle exoskeleton during human walking, a neuromuscular model, or electromyography. Controllers were implemented on a tethered ankle exoskeleton--Rehabilitation Robotics, Ankle Exoskeleton, Torque Control, Human-Robot Interaction I. INTRODUCTION Exoskeletons have been

Collins, Steven H.

114

Interval Methods for Sensitivity-Based Model-Predictive Control of  

E-Print Network (OSTI)

Interval Methods for Sensitivity-Based Model-Predictive Control of Solid Oxide Fuel Cell Systems and experiment for the thermal subprocess of a high-temperature solid oxide fuel cell system. Keywords: Interval analysis, model-predictive control, sensitivity analysis, tracking control, solid oxide fuel cells AMS

Kearfott, R. Baker

115

Method for forming porous sintered bodies with controlled pore structure  

DOE Patents (OSTI)

The present invention is based, in part, on a method for combining a mixture of hydroxide and hydride functional siloxanes to form a polysiloxane polymer foam, that leaves no residue (zero char yield) upon thermal decomposition, with ceramic and/or metal powders and appropriate catalysts to produce porous foam structures having compositions, densities, porosities and structures not previously attainable. The siloxanes are mixed with the ceramic and/or metal powder, wherein the powder has a particle size of about 400 .mu.m or less, a catalyst is added causing the siloxanes to foam and crosslink, thereby forming a polysiloxane polymer foam having the metal or ceramic powder dispersed therein. The polymer foam is heated to thermally decompose the polymer foam and sinter the powder particles together. Because the system is completely nonaqueous, this method further provides for incorporating reactive metals such as magnesium and aluminum, which can be further processed, into the foam structure.

Whinnery, LeRoy Louis (4929 Julie St., Livermore, Alameda County, CA 94550); Nichols, Monte Carl (4070 Guilford Ave., Livermore, Alameda County, CA 94550)

2000-01-01T23:59:59.000Z

116

Method and apparatus for control of a magnetic structure  

DOE Patents (OSTI)

A method and apparatus for independently adjusting the spacing between opposing magnet arrays in charged particle based light sources. Adjustment mechanisms between each of the magnet arrays and the supporting structure allow the gap between the two magnet arrays to be independently adjusted. In addition, spherical bearings in the linkages to the magnet arrays permit the transverse angular orientation of the magnet arrays to also be adjusted. The opposing magnet arrays can be supported above the ground by the structural support.

Challenger, Michael P. (Bothell, WA); Valla, Arthur S. (Bothell, WA)

1996-06-18T23:59:59.000Z

117

Method of controlling cyclic variation in engine combustion  

DOE Patents (OSTI)

Cyclic variation in combustion of a lean burning engine is reduced by detecting an engine combustion event output such as torsional acceleration in a cylinder (i) at a combustion event (k), using the detected acceleration to predict a target acceleration for the cylinder at the next combustion event (k+1), modifying the target output by a correction term that is inversely proportional to the average phase of the combustion event output of cylinder (i) and calculating a control output such as fuel pulse width or spark timing necessary to achieve the target acceleration for cylinder (i) at combustion event (k+1) based on anti-correlation with the detected acceleration and spill-over effects from fueling. 27 figs.

Davis, L.I. Jr.; Daw, C.S.; Feldkamp, L.A.; Hoard, J.W.; Yuan, F.; Connolly, F.T.

1999-07-13T23:59:59.000Z

118

Method for detecting engine misfire and for fuel control  

SciTech Connect

This patent describes the method of detecting misfire in an internal combustion engine during start up. It comprises: sensing first engine speeds at positions midway between top dead center positions and second engine speeds at positions between each midway position and the previous top dead center position, during initial cranking, storing first speeds as cranking speed, and comparing the first speed with the second speed during the combustion period of each cylinder and with the cranking speed.A failure to increase speed over the cranking speed and over the second speed denotes misfire for that cylinder.

Tang, D.L.; Chang, M.F.; Sultan, M.C.

1990-06-12T23:59:59.000Z

119

Method of controlling scale in oil recovery operations  

DOE Patents (OSTI)

Disclosed is a method of producing highly viscous minerals from a subterranean formation by injection of an acidic, thermal vapor stream without substantial scale buildup in downstream piping, pumps and well bore. The process comprises heating the formation by injection of heat, preferably in the form of a thermal vapor stream composed of combustion gases and steam and injecting an acidic compound simultaneously with the thermal vapor stream into the formation at a temperature above the dew point of the thermal vapor stream. The acidic, thermal vapor stream increases the solubility of metal ions in connate water and thus reduces scaling in the downstream equipment during the production of viscous hydrocarbons.

Krajicek, Richard W. (Houston, TX)

1981-01-01T23:59:59.000Z

120

Method and apparatus for laser-controlled proton beam radiology  

DOE Patents (OSTI)

A proton beam radiology system provides cancer treatment and proton radiography. The system includes an accelerator for producing an H.sup.- beam and a laser source for generating a laser beam. A photodetachment module is located proximate the periphery of the accelerator. The photodetachment module combines the H.sup.- beam and laser beam to produce a neutral beam therefrom within a subsection of the H.sup.- beam. The photodetachment module emits the neutral beam along a trajectory defined by the laser beam. The photodetachment module includes a stripping foil which forms a proton beam from the neutral beam. The proton beam is delivered to a conveyance segment which transports the proton beam to a patient treatment station. The photodetachment module further includes a laser scanner which moves the laser beam along a path transverse to the cross-section of the H.sup.- beam in order to form the neutral beam in subsections of the H.sup.- beam. As the scanning laser moves across the H.sup.- beam, it similarly varies the trajectory of the proton beam emitted from the photodetachment module and in turn varies the target location of the proton beam upon the patient. Intensity modulation of the proton beam can also be achieved by controlling the output of the laser.

Johnstone, Carol J. (Warrenville, IL)

1998-01-01T23:59:59.000Z

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


121

Method and apparatus for laser-controlled proton beam radiology  

DOE Patents (OSTI)

A proton beam radiology system provides cancer treatment and proton radiography. The system includes an accelerator for producing an H{sup {minus}} beam and a laser source for generating a laser beam. A photodetachment module is located proximate the periphery of the accelerator. The photodetachment module combines the H{sup {minus}} beam and laser beam to produce a neutral beam therefrom within a subsection of the H{sup {minus}} beam. The photodetachment module emits the neutral beam along a trajectory defined by the laser beam. The photodetachment module includes a stripping foil which forms a proton beam from the neutral beam. The proton beam is delivered to a conveyance segment which transports the proton beam to a patient treatment station. The photodetachment module further includes a laser scanner which moves the laser beam along a path transverse to the cross-section of the H{sup {minus}} beam in order to form the neutral beam in subsections of the H{sup {minus}} beam. As the scanning laser moves across the H{sup {minus}} beam, it similarly varies the trajectory of the proton beam emitted from the photodetachment module and in turn varies the target location of the proton beam upon the patient. Intensity modulation of the proton beam can also be achieved by controlling the output of the laser. 9 figs.

Johnstone, C.J.

1998-06-02T23:59:59.000Z

122

Applying the SCR Requirements Method to the Light Control Case Study  

E-Print Network (OSTI)

Applying the SCR Requirements Method to the Light Control Case Study Journal of Universal Computer@itd.nrl.navy.mil Abstract: To date, the SCR Software Cost Reduction requirements method has been used in industrial plants and avion- ics systems. This paper describes the use of the SCR method to specify the requirements

123

EIS-0285: Transmission System Vegetation Management Program | Department of  

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

285: Transmission System Vegetation Management Program 285: Transmission System Vegetation Management Program EIS-0285: Transmission System Vegetation Management Program SUMMARY Bonneville Power Administration (Bonneville) is responsible for maintaining a network of 24,000 kilometers (km) or 15,000 miles (mi.) of electric transmission lines and 350 substations. This electric transmission system operates in seven states of the Pacific Northwest. (See Figure I-1). The seven states offer a great diversity of vegetation. This vegetation can interfere with electric power flow, pose safety problems for us and neighboring members of the public, and interfere with our ability to maintain these facilities. We need to keep vegetation a safe distance away from our electric power facilities and control noxious weeds at our

124

Capital budgeting methods, management control systems and the R&D intensity of the firm  

Science Journals Connector (OSTI)

This paper investigates the effect of the Research and Development (R&D) intensity of the firm on the use of management control systems, capital budgeting methods and the methods to determine the cost of capital. Based on earlier literature, we develop several hypotheses that we test empirically, using survey data of the 101 Finnish firms operating in the capital area. The results indicate that the use of management control systems such as control and bonus systems, budgeting and strategic alliances increases with the degree of the R&D intensity of the firm. The results also indicate that high-R&D-intensity firms use formal capital budgeting methods within large and strategic projects. Finally, our results show that the use of sophisticated capital budgeting methods such as Net Present Value (NPV) and Internal Rate of Return (IRR) methods increases with the R&D intensity of the firm. Our results remain materially the same after controlling for several firm characteristics.

Hanna Silvola

2008-01-01T23:59:59.000Z

125

Control method for mixed refrigerant based natural gas liquefier  

DOE Patents (OSTI)

In a natural gas liquefaction system having a refrigerant storage circuit, a refrigerant circulation circuit in fluid communication with the refrigerant storage circuit, and a natural gas liquefaction circuit in thermal communication with the refrigerant circulation circuit, a method for liquefaction of natural gas in which pressure in the refrigerant circulation circuit is adjusted to below about 175 psig by exchange of refrigerant with the refrigerant storage circuit. A variable speed motor is started whereby operation of a compressor is initiated. The compressor is operated at full discharge capacity. Operation of an expansion valve is initiated whereby suction pressure at the suction pressure port of the compressor is maintained below about 30 psig and discharge pressure at the discharge pressure port of the compressor is maintained below about 350 psig. Refrigerant vapor is introduced from the refrigerant holding tank into the refrigerant circulation circuit until the suction pressure is reduced to below about 15 psig, after which flow of the refrigerant vapor from the refrigerant holding tank is terminated. Natural gas is then introduced into a natural gas liquefier, resulting in liquefaction of the natural gas.

Kountz, Kenneth J. (Palatine, IL); Bishop, Patrick M. (Chicago, IL)

2003-01-01T23:59:59.000Z

126

Control methods of the switched reluctance motor in electric vehicle during acceleration  

Science Journals Connector (OSTI)

In this paper the equations describing the performance of the electric vehicle are derived. Performance characteristics for each part in the vehicle system are obtained when the vehicle is accelerated under voltage turn on and turn off angle control. A comparison between the different methods of control is established. From these comparisons it can be noticed that the acceleration time for the case at which the turn on angle is controlled will be smaller than that for the other cases; also the motor efficiency at the voltage control method has the highest value especially at the higher values of the vehicle speed.

Fathy El Sayed Abdel-Kader; M. Z. Elsherif; Naser M. B. Abdel-Rahim; Mohamed M. Fathy

2012-01-01T23:59:59.000Z

127

Vegetables: Selection, Care, Cooking.  

E-Print Network (OSTI)

if cooking whole. Place in boiling, salted water (1 teaspoon sa!t 1 to each quart of water). Bring water and vege- tables to a boil quickly; reduce temperature to simmer and cook until tender but firm. Bacon or ham drippings and salt pork or ham chunks..., cauliflower, spin- ach and other greens may be cooked this way. Slice, dice or shred the vegetable. Melt a small amount of cooking fat (1 to 2 table- spoons) in a heavy frypan or saucepan; add the vegetables, salt lightly and toss until the vege- table...

Reasonover, Frances; Mason, Louise; Tribble, Marie; Cox, Maeona

1958-01-01T23:59:59.000Z

128

Response of Vegetation to Livestock Grazing at the Texas Experimental Ranch.  

E-Print Network (OSTI)

.............................. 1 Climate Physiography and Soils Vegetation Grazing Treatments METHODS ................................ 2 1960-78 1978-82 Relationship Between Sampling Methods RESULTS ............................ . ..... 3 VEGETATION TRENDS (1960... with an extensive rangeland laboratory to evaluate the long-term effects of grazing management on cow/calf and vegetation performance. Since 1960, three grazing treatments have been continued in the same pastures without interruption: continuous grazing...

Heitschmidt, R.K.; Dowhower, S.L.; Gordon, R.A.; Price, D.L.

1986-01-01T23:59:59.000Z

129

U-018: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities |  

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

18: Oracle AutoVue ActiveX Control Insecure Method 18: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities U-018: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities October 25, 2011 - 8:45am Addthis PROBLEM: Oracle AutoVue ActiveX Control Insecure Method Vulnerabilities. PLATFORM: The vulnerabilities are confirmed in version 20.0.2 build 7910 (AutoVueX.ocx 20.1.1.7910). Other versions may also be affected. ABSTRACT: Successful exploitation of the vulnerabilities allows execution of arbitrary code. reference LINKS: Bugtraq ID: 50321 Secunia Advisory SA46473 Oracle AutoVue IMPACT ASSESSMENT: High Discussion: Successfully exploiting this issue will allow attackers to create or overwrite arbitrary files on the victim's computer within the context of the affected application (typically Internet Explorer) that uses the

130

Self-tuning Fuzzy Control Method Based on the Trajectory Performance of the Phase Plane  

E-Print Network (OSTI)

The phase plane is already an important method to design fuzzy control systems and analyze their stability. The concept of the real-time response trajectory characteristic vectors and angles between the real-time characteristic vectors on the phase...

Zhang, J.; Chen, Y.; Xiong, J.

2006-01-01T23:59:59.000Z

131

Method of controlled reduction of nitroaromatics by enzymatic reaction with oxygen sensitive nitroreductase enzymes  

DOE Patents (OSTI)

A method for the controlled reduction of nitroaromatic compounds such as nitrobenzene and 2,4,6-trinitrotoluene by enzymatic reaction with oxygen sensitive nitroreductase enzymes, such as ferredoxin NADP oxidoreductase.

Shah, Manish M. (Richland, WA); Campbell, James A. (Pasco, WA)

1998-01-01T23:59:59.000Z

132

Quantity comparison of concurrency control methods for XML database systems based on DOM API  

Science Journals Connector (OSTI)

Existing works on processing of eXtensible Markup Language (XML) documents have been concentrated on query optimisation, storage problems, documents transformation, compressing methods and normalisation. There are only few papers on concurrency control in accessing and modifying XML documents, which are stored in XML database systems. The aim of this paper is to analyse and compare the quantity of concurrency control methods for XML database systems based on DOM API.

Krzysztof Jankiewicz; Aleksandra Siekierska; Maciej Siekierski

2008-01-01T23:59:59.000Z

133

NOISE CONTROL METHODS FOR A RECIPROCATING AIR COMPRESSOR USED IN FUEL CELL AUXILIARY POWER UNIT (APU)  

E-Print Network (OSTI)

NOISE CONTROL METHODS FOR A RECIPROCATING AIR COMPRESSOR USED IN FUEL CELL AUXILIARY POWER UNIT Air pollution Noise pollution Engine life Remedy Fuel cell APU Quieter Low emissions Exhaust Heat, Case History: Noise control approaches for an air-compressor in a fuel-cell auxiliary power unit, Noise

Carver, Jeffrey C.

134

Theoretical Study of a Novel Control Method of VAV Air-conditioning System Based on MATLAB  

E-Print Network (OSTI)

ICEBO2006, Shenzhen, China Control Systems for Energy Efficiency and Comfort, Vol. V-2-2 Theoretical Study of a Novel Control Method of VAV Air-conditioning System Based on MATLAB Zhigang Shi Songtao Hu Gang Wang Angui Li Xi?An University...

Shi, Z.; Hu, S.; Wang, G.; Li, A.

2006-01-01T23:59:59.000Z

135

Energy Based Methods in Wind Turbine Control CeSOS Highlights and AMOS Visions  

E-Print Network (OSTI)

Energy Based Methods in Wind Turbine Control CeSOS Highlights and AMOS Visions Morten D. Pedersen Passivity Based Control 5 Implementation Challenges Morten D. Pedersen (NTNU) June 7, 2013 2 / 26 #12 performed in wind tunnel using tower were not a b ogstad, P.E. Eriksen / Renewable Energy 50 (2013) 325e333

Nørvåg, Kjetil

136

Method for measuring and controlling beam current in ion beam processing  

DOE Patents (OSTI)

A method for producing film thickness control of ion beam sputter deposition films. Great improvements in film thickness control is accomplished by keeping the total current supplied to both the beam and suppressor grids of a radio frequency (RF) in beam source constant, rather than just the current supplied to the beam grid. By controlling both currents, using this method, deposition rates are more stable, and this allows the deposition of layers with extremely well controlled thicknesses to about 0.1%. The method is carried out by calculating deposition rates based on the total of the suppressor and beam currents and maintaining the total current constant by adjusting RF power which gives more consistent values.

Kearney, Patrick A. (Livermore, CA); Burkhart, Scott C. (Livermore, CA)

2003-04-29T23:59:59.000Z

137

Method and apparatus for actively controlling a micro-scale flexural plate wave device  

DOE Patents (OSTI)

An actively controlled flexural plate wave device provides a micro-scale pump. A method of actively controlling a flexural plate wave device produces traveling waves in the device by coordinating the interaction of a magnetic field with actively controlled currents. An actively-controlled flexural plate wave device can be placed in a fluid channel and adapted for use as a micro-scale fluid pump to cool or drive micro-scale systems, for example, micro-chips, micro-electrical-mechanical devices, micro-fluid circuits, or micro-scale chemical analysis devices.

Dohner, Jeffrey L. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

138

Method and system for controlling a synchronous machine over full operating range  

DOE Patents (OSTI)

System and method for controlling a synchronous machine are provided. The method allows for calculating a stator voltage index. The method further allows for relating the magnitude of the stator voltage index against a threshold voltage value. An offset signal is generated based on the results of the relating step. A respective state of operation of the machine is determined. The offset signal is processed based on the respective state of the machine.

Walters, James E. (Carmel, IN); Gunawan, Fani S. (Westfield, IN); Xue, Yanhong (Westfield, IN)

2002-01-01T23:59:59.000Z

139

Vegetable Gardening in Containers.  

E-Print Network (OSTI)

are indicated in Table 1. * Growing Media Synthetic "soils" are best suited for vegetable container gardening. These mixes may be composed of sawdust, wood chips, peat moss, perlite, ver miculite or almost any other type of media. Regardless of what... "soils" are available from gar den centers, or one can be pre pared by mixing horticultu ral grade vermiculite, peat moss, limestone, superphosphate, and garden fertilizer. To 1 bushel each of vermiculite and peat moss, add 10 tablespoons...

Cotner, Sam

1981-01-01T23:59:59.000Z

140

Genetic Polymorphisms in Nitric Oxide Synthase Genes Modify the Relationship between Vegetable and Fruit Intake and Risk of Non-Hodgkin Lymphoma  

Science Journals Connector (OSTI)

...history of NHL, total energy intake (kcal), smoking...significant after false discovery rate adjustment for...primarily found in dark-green leafy vegetables...Controlling the false discovery rate: a practical and...regression model. The false discovery rate method was applied...

Xuesong Han; Tongzhang Zheng; Qing Lan; Yaqun Zhang; Briseis A. Kilfoy; Qin Qin; Nathaniel Rothman; Shelia H. Zahm; Theodore R. Holford; Brian Leaderer; and Yawei Zhang

2009-05-01T23:59:59.000Z

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


141

"Method for Controlling of Spatial and Temporal Variations of Plasma  

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

Method for Controlling of Spatial and Temporal Variations of Plasma Method for Controlling of Spatial and Temporal Variations of Plasma Properties in Plasma Devices with Crossed Electric and Magnetic Fields" Inventors Yevgeny Raitses, Alexander Merzhevskiy A method of crafting spatial variations of the electron cross-field transport by means of localized current-conducting plasma structures such as rotating spoke, in order to control spatial variations of macroscopic plasma properties, including the electric field, electron temperature and plasma density in relevant E crossed B plasma devices such as Hall and helicon plasma thrusters, plasma-beam devices for material processing, magnetic filters for plasma sources, including negative and positive ion sources, and rotating plasma devices such as E cross B mass separation

142

Control method and system for hydraulic machines employing a dynamic joint motion model  

DOE Patents (OSTI)

A control method and system for controlling a hydraulically actuated mechanical arm to perform a task, the mechanical arm optionally being a hydraulically actuated excavator arm. The method can include determining a dynamic model of the motion of the hydraulic arm for each hydraulic arm link by relating the input signal vector for each respective link to the output signal vector for the same link. Also the method can include determining an error signal for each link as the weighted sum of the differences between a measured position and a reference position and between the time derivatives of the measured position and the time derivatives of the reference position for each respective link. The weights used in the determination of the error signal can be determined from the constant coefficients of the dynamic model. The error signal can be applied in a closed negative feedback control loop to diminish or eliminate the error signal for each respective link.

Danko, George (Reno, NV)

2011-11-22T23:59:59.000Z

143

Geothermal energy environmental problems and control methods: review of recent findings  

SciTech Connect

The findings of a literature review on the environmental concerns and associated control methods of geothermal energy utilization are presented. The document introduces the environmental problems associated with geothermal energy utilization; assesses the current status of control methods; references appropriate environmental documents; and identifies areas where additional environmental research is needed. The review attempts to consolidate current understanding of the environmental impact of geothermal energy development. Approximately 180 reports written by authors in industry, government and academia have been reviewed in the areas of air emissions, surface and subsurface liquid discharges, solid wastes, noise, subsidence, and induced seismicity.

Nguyen, V.T.; Caskey, J.F.; Pfundstein, R.T.; Rifkin, S.B.

1980-06-01T23:59:59.000Z

144

Control system and method for a power delivery system having a continuously variable ratio transmission  

DOE Patents (OSTI)

A control system and method for a power delivery system, such as in an automotive vehicle, having an engine coupled to a continuously variable ratio transmission (CVT). Totally independent control of engine and transmission enable the engine to precisely follow a desired operating characteristic, such as the ideal operating line for minimum fuel consumption. CVT ratio is controlled as a function of commanded power or torque and measured load, while engine fuel requirements (e.g., throttle position) are strictly a function of measured engine speed. Fuel requirements are therefore precisely adjusted in accordance with the ideal characteristic for any load placed on the engine.

Frank, Andrew A. (1034 Hillside Ave., Madison, WI 53705)

1984-01-01T23:59:59.000Z

145

Method for use of hydraulically or electrically controlled solenoids under failed on conditions  

DOE Patents (OSTI)

A method to operate a clutch device in an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and at least one electric machine includes, in response to a failure condition detected within a flow control device configured to facilitate flow of hydraulic fluid for operating the clutch device, selectively preventing the flow of hydraulic fluid from entering the flow control device and feeding the clutch device. Synchronization of the clutch device is initiated when the clutch device is intended for activation, and only if the clutch device is synchronized, the flow of hydraulic fluid is selectively permitted to enter the flow control device to activate the clutch device.

Bolenbaugh, Jonathan M.; Naqi, Syed

2014-07-08T23:59:59.000Z

146

Participation of wind power plants in system frequency control: Review of grid code requirements and control methods  

Science Journals Connector (OSTI)

Abstract Active power reserves are needed for the proper operation of an electrical system. These reserves are continuously regulated in order to match the generation and consumption in the system and thus, to maintain a constant electrical frequency. They are usually provided by synchronized conventional generating units such as hydraulic or thermal power plants. With the progressive displacement of these generating plants by non-synchronized renewable-based power plants (e.g. wind and solar) the net level of synchronous power reserves in the system becomes reduced. Therefore, wind power plants are required, according to some European Grid Codes, to also provide power reserves like conventional generating units do. This paper focuses not only on the review of the requirements set by Grid Codes, but also on control methods of wind turbines for their participation in primary frequency control and synthetic inertia.

Francisco Díaz-González; Melanie Hau; Andreas Sumper; Oriol Gomis-Bellmunt

2014-01-01T23:59:59.000Z

147

Microsoft PowerPoint - Town Bluff Vegetation impact.ppt  

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

's. In 1989 the used for the Lake constructed in the 1950's. In 1989 the 's. In 1989 the used for the Lake constructed in the 1950's. In 1989 the dam was modified for the installation of Robert D. Willis dam was modified for the installation of Robert D. Willis Power Plant. The plant has two S Power Plant. The plant has two S - - Tube type turbines Tube type turbines which operate generators nominally rated at 4Mwh each. which operate generators nominally rated at 4Mwh each. Actual power production has rarely exceeded 3.6Mwh Actual power production has rarely exceeded 3.6Mwh Invasive species of Vegetation has increased to the Invasive species of Vegetation has increased to the point that an aquatic vegetation control program is being point that an aquatic vegetation control program is being managed by Town Bluff in coordination with TPWD and managed by Town Bluff in coordination with TPWD and

148

Control #15421 In this paper we present a method of optimally scheduling trips travelling down  

E-Print Network (OSTI)

Control #15421 SUMMARY In this paper we present a method of optimally scheduling trips travelling of trips as parameters and generates a schedule that maximizes the number of trips and determines when each schedule in which human interactions are minimized. Starting with a mathematically derived upper bound

Morrow, James A.

149

Transcriptional control in Alicyclobacillus acidocaldarius and associated genes, proteins, and methods  

DOE Patents (OSTI)

Isolated and/or purified polypeptides and nucleic acid sequences encoding polypeptides from Alicyclobacillus acidocaldarius are provided. Further provided are methods of modulating transcription or transcription or transcriptional control using isolated and/or purified polypeptides and nucleic acid sequences from Alicyclobacillus acidocaldarius.

Lee, Brady Deneys; Thompson, David N; Apel, William A.; Thompson, Vicki Slavchev; Reed, David W; Lacey, Jeffrey A

2014-05-06T23:59:59.000Z

150

A Method for Impact Assessment of Faults on the Performance of Field-Oriented Control Drives  

E-Print Network (OSTI)

, reliability of a motor drive can be explored via the emerging field of thermo- electrical analysis [3A Method for Impact Assessment of Faults on the Performance of Field-Oriented Control Drives Grainger Center for Electric Machinery and Electromechanics Department of Electrical and Computer

Liberzon, Daniel

151

Systems and methods for controlling energy use in a building management system using energy budgets  

DOE Patents (OSTI)

Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (HVAC) subsystem of a building are shown and described. A feedback controller is used to generate a manipulated variable based on an energy use setpoint and a measured energy use. The manipulated variable may be used for adjusting the operation of an HVAC device.

Wenzel, Michael J; Drees, Kirk H

2014-09-23T23:59:59.000Z

152

Application of continuation and bifurcation methods to the design of control systems  

Science Journals Connector (OSTI)

...design problems. The search for the recovery...design problems. The search for the recovery...inertial and aerodynamic terms, the latter being...control surfaces enter on their deflection...simply by using linear terms with unsteady aero...as the systematic search method for computation...

1998-01-01T23:59:59.000Z

153

Robust model based control method for wind energy production A. Pintea 1  

E-Print Network (OSTI)

Robust model based control method for wind energy production A. Pintea 1 , D. Popescu 1 , Ioana change effects will come to dominate every part of the earth. Wind power energy represents an interesting alternative to traditional forms of obtaining energy. However, the efficiency of wind power strongly depends

Boyer, Edmond

154

Active Vibration Control on A 3-DOF Parallel Platform Based on Kane's Dynamics Method  

E-Print Network (OSTI)

- 2783 - Active Vibration Control on A 3-DOF Parallel Platform Based on Kane's Dynamics Method Yuan be impossible without a careful isolation of the instrument from the vibration sources. To reduce the vibration low remaining vibration level. This paper is concerned with the development of a vibration isolation

Li, Yangmin

155

Special Section --Marine Controlled-Source Electromagnetic Methods A Bayesian model for gas saturation estimation  

E-Print Network (OSTI)

Special Section -- Marine Controlled-Source Electromagnetic Methods A Bayesian model for gas Vasco1 , Yoram Rubin2 , and Zhangshuan Hou2 ABSTRACT We develop a Bayesian model to jointly invert reservoir model. We consid- er the porosity and fluid saturation of each layer in the reservoir, the bulk

Chen, Jinsong

156

A Morphological Analysis of Audio Objects and their Control Methods for 3D Audio  

E-Print Network (OSTI)

A Morphological Analysis of Audio Objects and their Control Methods for 3D Audio Justin Mathew technological improvements in audio reproduction systems increased the possibilities to spatialize sources in a listening envi- ronment. The spatialization of reproduced audio is highly depen- dent on the recording

Paris-Sud XI, Université de

157

Brain mass estimation by head circumference and body mass methods in neonatal glycaemic modelling and control  

Science Journals Connector (OSTI)

AbstractIntroduction Hyperglycaemia is a common complication of stress and prematurity in extremely low-birth-weight infants. Model-based insulin therapy protocols have the ability to safely improve glycaemic control for this group. Estimating non-insulin-mediated brain glucose uptake by the central nervous system in these models is typically done using population-based body weight models, which may not be ideal. Method A head circumference-based model that separately treats small-for-gestational-age (SGA) and appropriate-for-gestational-age (AGA) infants is compared to a body weight model in a retrospective analysis of 48 patients with a median birth weight of 750 g and median gestational age of 25 weeks. Estimated brain mass, model-based insulin sensitivity (SI) profiles, and projected glycaemic control outcomes are investigated. SGA infants (5) are also analyzed as a separate cohort. Results Across the entire cohort, estimated brain mass deviated by a median 10% between models, with a per-patient median difference in SI of 3.5%. For the SGA group, brain mass deviation was 42%, and per-patient SI deviation 13.7%. In virtual trials, 87–93% of recommended insulin rates were equal or slightly reduced (? head circumference method, while glycaemic control outcomes showed little change. Conclusion The results suggest that body weight methods are not as accurate as head circumference methods. Head circumference-based estimates may offer improved modelling accuracy and a small reduction in insulin administration, particularly for SGA infants.

Cameron Allan Gunn; Jennifer L. Dickson; Christopher G. Pretty; Jane M. Alsweiler; Adrienne Lynn; Geoffrey M. Shaw; J. Geoffrey Chase

2014-01-01T23:59:59.000Z

158

Systems and methods for providing power to a load based upon a control strategy  

SciTech Connect

Systems and methods are provided for an electrical system. The electrical system, for example, includes a first load, an interface configured to receive a voltage from a voltage source, and a controller configured to receive the voltage through the interface and to provide a voltage and current to the first load. The controller may be further configured to, receive information on a second load electrically connected to the voltage source, determine an amount of reactive current to return to the voltage source such that a current drawn by the electrical system and the second load from the voltage source is substantially real, and provide the determined reactive current to the voltage source.

Perisic, Milun; Lawrence, Christopher P; Ransom, Ray M; Kajouke, Lateef A

2014-11-04T23:59:59.000Z

159

Feedback control of torsion balance in measurement of gravitational constant G with angular acceleration method  

SciTech Connect

The performance of the feedback control system is of central importance in the measurement of the Newton's gravitational constant G with angular acceleration method. In this paper, a PID (Proportion-Integration-Differentiation) feedback loop is discussed in detail. Experimental results show that, with the feedback control activated, the twist angle of the torsion balance is limited to 7.3×10{sup ?7} rad /?( Hz ) at the signal frequency of 2?mHz, which contributes a 0.4 ppm uncertainty to the G value.

Quan, Li-Di [MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China) [MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); School of Automation, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Xue, Chao; Shao, Cheng-Gang; Yang, Shan-Qing; Tu, Liang-Cheng; Luo, Jun, E-mail: junluo@mail.hust.edu.cn [MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)] [MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Wang, Yong-Ji [School of Automation, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)] [School of Automation, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)

2014-01-15T23:59:59.000Z

160

Design method of dynamical decoupling sequences integrated with optimal control theory  

E-Print Network (OSTI)

A method for synthesizing dynamical decoupling (DD) sequences is presented, which can tailor these sequences to a given set of qubits, environments, instruments, and available resources using partial information of the system. The key concept behind the generation of the DD sequences involves not only extricating the strong dependence on the coupling strengths according to the "optimal control," but also exploiting the "refocus" technique used conventionally to obtain DD sequences. The concept is a generalized one that integrates optimal control and designing of DD sequences.

Yutaka Tabuchi; Masahiro Kitagawa

2012-08-26T23:59:59.000Z

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


161

Fault tolerant control of outdoor air and AHU supply air temperature in VAV air conditioning systems using PCA method  

Science Journals Connector (OSTI)

This paper presents a fault tolerant control method to control the outdoor air ventilation and AHU supply air temperature, which concerned indoor air quality and humidity, respectively to satisfy ASHRAE Standard in VAV systems. The principal component analysis method, joint angle method, and compensatory reconstruction are used to detect, isolate, and reconstruct the fault, respectively for fault tolerant control. They are tested and evaluated in a simulation environment under the condition of temperature and flow sensors with fix bias faults.

Xinqiao Jin; Zhimin Du

2006-01-01T23:59:59.000Z

162

System and method for leveraging human physiological traits to control microprocessor frequency  

DOE Patents (OSTI)

A system and method for leveraging physiological traits to control microprocessor frequency are disclosed. In some embodiments, the system and method may optimize, for example, a particular processor-based architecture based on, for example, end user satisfaction. In some embodiments, the system and method may determine, for example, whether their users are satisfied to provide higher efficiency, improved reliability, reduced power consumption, increased security, and a better user experience. The system and method may use, for example, biometric input devices to provide information about a user's physiological traits to a computer system. Biometric input devices may include, for example, one or more of the following: an eye tracker, a galvanic skin response sensor, and/or a force sensor.

Shye, Alex; Pan, Yan; Scholbrock, Benjamin; Miller, J. Scott; Memik, Gokhan; Dinda, Peter A; Dick, Robert P

2014-03-25T23:59:59.000Z

163

Analysis of the Motion Control Methods for Stratospheric Balloon-Borne Gondola Platform  

Science Journals Connector (OSTI)

At present, gondola platform is one of the stratospheric balloon-borne platforms being in research focus at home and overseas. Comparing to other stratospheric balloon-borne platforms, such as airship platform, gondola platform has advantages of higher stability, rapid in motion regulation and lower energy cost but disadvantages of less supporting capacity and be incapable of fixation. While all platforms have the same goal of keeping them at accurate angle and right pose for the requirements of instruments and objects installed in the platforms, when platforms rotate round the ground level perpendicular. That is accomplishing motion control. But, platform control system has factors of low damper, excessive and uncertain disturbances by the reason of its being hung over balloon in the air, it is hard to achieve the desired control precision because platform is ease to deviate its benchmark motion. Thus, in the controlling procedure in order to get higher precision, it is crucial to perceive the platform's swing synchronously and rapidly, and restrain the influence of disturbances effectively, keep the platform's pose steadily. Furthermore, while the platform in the air regard control center in the ground as reference object, it is ultimate to select a appropriate reference frame and work out the coordinates and implement the adjustment by the PC104 controller. This paper introduces the methods of the motion control based on stratospheric balloon-borne gondola platform. Firstly, this paper compares the characteristic of the flywheel and CMG and specifies the key methods of obtaining two significant states which are 'orientation stability' state and 'orientation tracking' state for platform motion control procedure using CMG as the control actuator. These two states reduce the deviation amplitude of rotation and swing of gondola's motion relative to original motion due to stratospheric intense atmosphere disturbance. We define it as the first procedure. In next procedure, we use the transfer matrix of earth reference frame to geographic reference frame to transform the data measured by the magnetic orientation sensors and the gyroscope to the space orientations, then the PC104 controller use the space orientations value as feedback to complete revises.

H H Wang; Z H Yuan; J Wu

2006-01-01T23:59:59.000Z

164

Biology and Management of Fungal Pathogens of Vegetables Program Leader  

E-Print Network (OSTI)

, and determining efficacy of disease control products #12;Re cauliflower rubber bands.msg Alternaria leaf spot on cabbage Program Justification: Fungal diseases are often a major limiting factor in vegetable production seeks to find cost effective disease control measures that result in production of high quality produce

Lazzaro, Brian

165

The 'Potato Head' method for identifying driver preferences for vehicle controls  

Science Journals Connector (OSTI)

This paper describes a method for identifying customer preferences for product features (here, vehicle controls) and how to implement the method. In brief, people sit in a vehicle mockup surrounded by panels of switches. For each function of interest (e.g., headlights on/off, hazard, etc.). They select the switch they prefer and attach it to the instrument panel (covered with Velcro®) or the steering column where they want it. (This is much like the Mr Potato Head® toy where children construct a face from parts - eyes, noses, etc.). To identify poor choices, test participants then drive a simulator while operating the chosen switches. Afterwards, participants can change their preferences, which they often do. While applied to controls here, it could be used to determine preferences for displays or other features.

P. Green; G . Paelke; J . Boreczky

1992-01-01T23:59:59.000Z

166

A review of existing models and methods to estimate employment effects of pollution control policies  

SciTech Connect

The purpose of this paper is to provide information about existing models and methods used to estimate coal mining employment impacts of pollution control policies. The EPA is currently assessing the consequences of various alternative policies to reduce air pollution. One important potential consequence of these policies is that coal mining employment may decline or shift from low-sulfur to high-sulfur coal producing regions. The EPA requires models that can estimate the magnitude and cost of these employment changes at the local level. This paper contains descriptions and evaluations of three models and methods currently used to estimate the size and cost of coal mining employment changes. The first model reviewed is the Coal and Electric Utilities Model (CEUM), a well established, general purpose model that has been used by the EPA and other groups to simulate air pollution control policies. The second model reviewed is the Advanced Utility Simulation Model (AUSM), which was developed for the EPA specifically to analyze the impacts of air pollution control policies. Finally, the methodology used by Arthur D. Little, Inc. to estimate the costs of alternative air pollution control policies for the Consolidated Coal Company is discussed. These descriptions and evaluations are based on information obtained from published reports and from draft documentation of the models provided by the EPA. 12 refs., 1 fig.

Darwin, R.F.; Nesse, R.J.

1988-02-01T23:59:59.000Z

167

Brush Management Methods  

E-Print Network (OSTI)

such junipers and deposition as oaks mesquite on sand- clay loams Grazon ET, Controls most species 5+ May temporarily in- Crossbow, except junipers and jure grasses in imme- Diesel lime pricklyash diate area of woody (basal bark plant, depending on application... vegetation caused by disking make the method most applicable to deep soils that can be seeded. Chaining Chaining is used to knock down and thin moderate to thick stands of brush (Figure 9). Chaining alone gives only temporary control. It is most effective...

Welch, Tommy G.

2000-07-14T23:59:59.000Z

168

Start-up and control method and apparatus for resonant free piston Stirling engine  

SciTech Connect

A resonant free-piston Stirling engine having a new and improved start-up and control method and system. A displacer linear electrodynamic machine is provided having an armature secured to and movable with the displacer and having a stator supported by the Stirling engine housing in juxtaposition to the armature. A control excitation circuit is provided for electrically exciting the displacer linear electrodynamic machine with electrical excitation signals having substantially the same frequency as the desired frequency of operation of the Stirling engine. The excitation control circuit is designed so that it selectively and controllably causes the displacer electrodynamic machine to function either as a generator load to extract power from the displacer or the control circuit selectively can be operated to cause the displacer electrodynamic machine to operate as an electric drive motor to apply additional input power to the displacer in addition to the thermodynamic power feedback to the displacer whereby the displacer linear electrodynamic machine also is used in the electric drive motor mode as a means for initially starting the resonant free-piston Stirling engine.

Walsh, Michael M. (Schenectady, NY)

1984-01-01T23:59:59.000Z

169

Start-up and control method and apparatus for resonant free piston Stirling engine  

SciTech Connect

A resonant free-piston Stirling engine having a new and improved start-up and control method and system. A displacer linear electrodynamic machine is provided having an armature secured to and movable with the displacer and having a stator supported by the Stirling engine housing in juxtaposition to the armature. A control excitation circuit is provided for electrically exciting the displacer linear electrodynamic machine with electrical excitation signals having substantially the same frequency as the desired frequency of operation of the Stirling engine. The excitation control circuit is designed so that it selectively and controllably causes the displacer electrodynamic machine to function either as a generator load to extract power from the displacer or the control circuit selectively can be operated to cause the displacer electrodynamic machine to operate as an electric drive motor to apply additional input power to the displacer in addition to the thermodynamic power feedback to the displacer whereby the displacer linear electrodynamic machine also is used in the electric drive motor mode as a means for initially starting the resonant free-piston Stirling engine. 3 figs.

Walsh, M.M.

1984-03-06T23:59:59.000Z

170

An Adaption Method For Fuzzy Logic Controllers In Lateral Vehicle Guidance  

E-Print Network (OSTI)

Experimental Results of Fuzzy Logic Control for LateralLogic Applications, Fuzzy Logic Control, Lateral Control iiloop system, under fuzzy logic control, follow a reference

Hessburg, Thomas; Tomizuka, Masayoshi

1995-01-01T23:59:59.000Z

171

Research on Calculation Method of Period and Deadline of Frame in Automotive Electronic and Information Integrated Control System  

E-Print Network (OSTI)

Research on Calculation Method of Period and Deadline of Frame in Automotive Electronic control, it is necessary to develop AEIICS (Automotive Electronic and Information Integrated Control-Words: Automotive electronic; In-vehicle network; Networked control; Temporal characteristic; Real-time; GCRT 1

Boyer, Edmond

172

Vegetation and Ecological Characteristics of Mixed-Conifer and Red Fir Forests at the Teakettle Experimental Forest Anonymous. 1970. Recommendations for an international standard for a mapping method in bird  

E-Print Network (OSTI)

Vegetation and Ecological Characteristics of Mixed-Conifer and Red Fir Forests at the Teakettle-1192. Fiegener, Rob. 2002. A fire history of mixed conifer at the Teakettle Experimental Forest. Unpublished Experimental Forest References Anonymous. 1970. Recommendations for an international standard for a mapping

Standiford, Richard B.

173

System and method of active vibration control for an electro-mechanically cooled device  

DOE Patents (OSTI)

A system and method of active vibration control of an electro-mechanically cooled device is disclosed. A cryogenic cooling system is located within an environment. The cooling system is characterized by a vibration transfer function, which requires vibration transfer function coefficients. A vibration controller generates the vibration transfer function coefficients in response to various triggering events. The environments may differ by mounting apparatus, by proximity to vibration generating devices, or by temperature. The triggering event may be powering on the cooling system, reaching an operating temperature, or a reset action. A counterbalance responds to a drive signal generated by the vibration controller, based on the vibration signal and the vibration transfer function, which adjusts vibrations. The method first places a cryogenic cooling system within a first environment and then generates a first set of vibration transfer function coefficients, for a vibration transfer function of the cooling system. Next, the cryogenic cooling system is placed within a second environment and a second set of vibration transfer function coefficients are generated. Then, a counterbalance is driven, based on the vibration transfer function, to reduce vibrations received by a vibration sensitive element.

Lavietes, Anthony D. (Hayward, CA); Mauger, Joseph (Livermore, CA); Anderson, Eric H. (Mountain View, CA)

2000-01-01T23:59:59.000Z

174

Selecting Fresh Fruits and Vegetables  

E-Print Network (OSTI)

time. Selecting Fresh Fruits and Vegetables Amanda Scott* E-197 9/08 This publication was sponsored by a grant from the Initiative for Future Agriculture Food Systems, a program of the Cooperative State Research, Education, and Extension Service, which...

Scott, Amanda

2008-09-05T23:59:59.000Z

175

Method for control of NOx emission from combustors using fuel dilution  

DOE Patents (OSTI)

A method of controlling NOx emission from combustors. The method involves the controlled addition of a diluent such as nitrogen or water vapor, to a base fuel to reduce the flame temperature, thereby reducing NOx production. At the same time, a gas capable of enhancing flame stability and improving low temperature combustion characteristics, such as hydrogen, is added to the fuel mixture. The base fuel can be natural gas for use in industrial and power generation gas turbines and other burners. However, the method described herein is equally applicable to other common fuels such as coal gas, biomass-derived fuels and other common hydrocarbon fuels. The unique combustion characteristics associated with the use of hydrogen, particularly faster flame speed, higher reaction rates, and increased resistance to fluid-mechanical strain, alter the burner combustion characteristics sufficiently to allow operation at the desired lower temperature conditions resulting from diluent addition, without the onset of unstable combustion that can arise at lower combustor operating temperatures.

Schefer, Robert W. (Alamo, CA); Keller, Jay O (Oakland, CA)

2007-01-16T23:59:59.000Z

176

Method for continuous control of composition and doping of pulsed laser deposited films  

DOE Patents (OSTI)

A method for growing a deposit upon a substrate of semiconductor material involves the utilization of pulsed laser deposition techniques within a low-pressure gas environment. The substrate and a target of a first material are positioned within a deposition chamber and a low-pressure gas atmosphere is developed within the chamber. The substrate is then heated, and the target is irradiated, so that atoms of the target material are ablated from the remainder of the target, while atoms of the gas simultaneously are adsorbed on the substrate/film surface. The ablated atoms build up upon the substrate, together with the adsorbed gas atoms to form the thin-film deposit on the substrate. By controlling the pressure of the gas of the chamber atmosphere, the composition of the formed deposit can be controlled, and films of continuously variable composition or doping can be grown from a single target of fixed composition.

Lowndes, Douglas H. (Knoxville, TN); McCamy, James W. (Knoxville, TN)

1995-01-01T23:59:59.000Z

177

Map of mixed prairie grassland vegetation, Rocky Flats, Colorado  

SciTech Connect

A color vegetation map at the scale of 1:12,000 of the area surrounding the Rocky Flats, Rockwell International Plant near Boulder, Colorado, provides a permanent record of baseline data which can be used to monitor changes in both vegetation and environment and thus to contribute to future land management and land-use policies. Sixteen mapping units based on species composition were identified, and characterized by two 10-m/sup 2/ vegetation stands each. These were grouped into prairie, pasture, and valley side on the basis of their species composition. Both the mapping units and these major groups were later confirmed by agglomerative clustering analysis of the 32 vegetation stands on the basis of species composition. A modified Bray and Curtis ordination was used to determine the environmental factor complexes controlling the distribution of vegetation at Rocky flats. Recommendations are made for future policies of environmental management and predictions of the response to environmental change of the present vegetation at the Rocky Flats site.

Clark, S J.V.; Webber, P J; Komarkova, V; Weber, W A

1980-01-01T23:59:59.000Z

178

Method of controlling coherent synchroton radiation-driven degradation of beam quality during bunch length compression  

SciTech Connect

A method of avoiding CSR induced beam quality defects in free electron laser operation by a) controlling the rate of compression and b) using a novel means of integrating the compression with the remainder of the transport system: both are accomplished by means of dispersion modulation. A large dispersion is created in the penultimate dipole magnet of the compression region leading to rapid compression; this large dispersion is demagnified and dispersion suppression performed in a final small dipole. As a result, the bunch is short for only a small angular extent of the transport, and the resulting CSR excitation is small.

Douglas, David R. (Newport News, VA); Tennant, Christopher D. (Williamsburg, VA)

2012-07-10T23:59:59.000Z

179

Surface photovoltage method for the quality control of silicon epitaxial layers on sapphire  

SciTech Connect

The surface photovoltage method is used to study “silicon-on-sapphire” epitaxial layers with a thickness of 0.3–0.6 ?m, which are used to fabricate p-channel MOS (metal—oxide-semiconductor) transistors with improved radiation hardness. It is shown that the manner in which the photoconductivity of the epitaxial layer decays after the end of a light pulse generated by a light-emitting diode (wavelength ?400 nm) strongly depends on the density of structural defects in the bulk of the structure. This enables control over how a “silicon-on-sapphire” structure is formed to provide the manufacturing of MOS structures with optimal operating characteristics.

Yaremchuk, A. F.; Starkov, A. V.; Zaikin, A. V., E-mail: lynch0000@gmail.com [National Rsearch University MIET (Russian Federation); Alekseev, A. V. [ZAO “Telekom-STV” (Russian Federation); Sokolov, E. M. [ZAO “Epiel” (Russian Federation)

2014-12-15T23:59:59.000Z

180

Method and apparatus for single-stepping coherence events in a multiprocessor system under software control  

DOE Patents (OSTI)

An apparatus and method are disclosed for single-stepping coherence events in a multiprocessor system under software control in order to monitor the behavior of a memory coherence mechanism. Single-stepping coherence events in a multiprocessor system is made possible by adding one or more step registers. By accessing these step registers, one or more coherence requests are processed by the multiprocessor system. The step registers determine if the snoop unit will operate by proceeding in a normal execution mode, or operate in a single-step mode.

Blumrich, Matthias A. (Ridgefield, CT); Salapura, Valentina (Chappaqua, NY)

2010-11-02T23:59:59.000Z

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


181

System and method for controlling power consumption in a computer system based on user satisfaction  

DOE Patents (OSTI)

Systems and methods for controlling power consumption in a computer system. For each of a plurality of interactive applications, the method changes a frequency at which a processor of the computer system runs, receives an indication of user satisfaction, determines a relationship between the changed frequency and the user satisfaction of the interactive application, and stores the determined relationship information. The determined relationship can distinguish between different users and different interactive applications. A frequency may be selected from the discrete frequencies at which the processor of the computer system runs based on the determined relationship information for a particular user and a particular interactive application running on the processor of the computer system. The processor may be adapted to run at the selected frequency.

Yang, Lei; Dick, Robert P; Chen, Xi; Memik, Gokhan; Dinda, Peter A; Shy, Alex; Ozisikyilmaz, Berkin; Mallik, Arindam; Choudhary, Alok

2014-04-22T23:59:59.000Z

182

Systems and methods for cylindrical hall thrusters with independently controllable ionization and acceleration stages  

DOE Patents (OSTI)

Systems and methods may be provided for cylindrical Hall thrusters with independently controllable ionization and acceleration stages. The systems and methods may include a cylindrical channel having a center axial direction, a gas inlet for directing ionizable gas to an ionization section of the cylindrical channel, an ionization device that ionizes at least a portion of the ionizable gas within the ionization section to generate ionized gas, and an acceleration device distinct from the ionization device. The acceleration device may provide an axial electric field for an acceleration section of the cylindrical channel to accelerate the ionized gas through the acceleration section, where the axial electric field has an axial direction in relation to the center axial direction. The ionization section and the acceleration section of the cylindrical channel may be substantially non-overlapping.

Diamant, Kevin David; Raitses, Yevgeny; Fisch, Nathaniel Joseph

2014-05-13T23:59:59.000Z

183

Method and system for controlling the position of a beam of light  

DOE Patents (OSTI)

An method and system for laser beam tracking and pointing is based on a conventional position sensing detector (PSD) or quadrant cell but with the use of amplitude-modulated light. A combination of logarithmic automatic gain control, filtering, and synchronous detection offers high angular precision with exceptional dynamic range and sensitivity, while maintaining wide bandwidth. Use of modulated light enables the tracking of multiple beams simultaneously through the use of different modulation frequencies. It also makes the system resistant to interfering light sources such as ambient light. Beam pointing is accomplished by feeding back errors in the measured beam position to a beam steering element, such as a steering mirror. Closed-loop tracking performance is superior to existing methods, especially under conditions of atmospheric scintillation.

Steinkraus, Jr., Robert F. (San Francisco, CA); Johnson, Gary W. (Livermore, CA); Ruggiero, Anthony J. (Livermore, CA)

2011-08-09T23:59:59.000Z

184

Method of controlling temperature of a thermoelectric generator in an exhaust system  

DOE Patents (OSTI)

A method of controlling the temperature of a thermoelectric generator (TEG) in an exhaust system of an engine is provided. The method includes determining the temperature of the heated side of the TEG, determining exhaust gas flow rate through the TEG, and determining the exhaust gas temperature through the TEG. A rate of change in temperature of the heated side of the TEG is predicted based on the determined temperature, the determined exhaust gas flow rate, and the determined exhaust gas temperature through the TEG. Using the predicted rate of change of temperature of the heated side, exhaust gas flow rate through the TEG is calculated that will result in a maximum temperature of the heated side of the TEG less than a predetermined critical temperature given the predicted rate of change in temperature of the heated side of the TEG. A corresponding apparatus is provided.

Prior, Gregory P; Reynolds, Michael G; Cowgill, Joshua D

2013-05-21T23:59:59.000Z

185

Ion-beam apparatus and method for analyzing and controlling integrated circuits  

DOE Patents (OSTI)

An ion-beam apparatus and method for analyzing and controlling integrated circuits are disclosed. The ion-beam apparatus comprises a stage for holding one or more integrated circuits (ICs); a source means for producing a focused ion beam; and a beam-directing means for directing the focused ion beam to irradiate a predetermined portion of the IC for sufficient time to provide an ion-beam-generated electrical input signal to a predetermined element of the IC. The apparatus and method have applications to failure analysis and developmental analysis of ICs and permit an alteration, control, or programming of logic states or device parameters within the IC either separate from or in combination with applied electrical stimulus to the IC for analysis thereof. Preferred embodiments of the present invention including a secondary particle detector and an electron floodgun further permit imaging of the IC by secondary ions or electrons, and allow at least a partial removal or erasure of the ion-beam-generated electrical input signal. 4 figs.

Campbell, A.N.; Soden, J.M.

1998-12-01T23:59:59.000Z

186

Ion-beam apparatus and method for analyzing and controlling integrated circuits  

DOE Patents (OSTI)

An ion-beam apparatus and method for analyzing and controlling integrated circuits. The ion-beam apparatus comprises a stage for holding one or more integrated circuits (ICs); a source means for producing a focused ion beam; and a beam-directing means for directing the focused ion beam to irradiate a predetermined portion of the IC for sufficient time to provide an ion-beam-generated electrical input signal to a predetermined element of the IC. The apparatus and method have applications to failure analysis and developmental analysis of ICs and permit an alteration, control, or programming of logic states or device parameters within the IC either separate from or in combination with applied electrical stimulus to the IC for analysis thereof. Preferred embodiments of the present invention including a secondary particle detector and an electron floodgun further permit imaging of the IC by secondary ions or electrons, and allow at least a partial removal or erasure of the ion-beam-generated electrical input signal.

Campbell, Ann N. (Albuquerque, NM); Soden, Jerry M. (Placitas, NM)

1998-01-01T23:59:59.000Z

187

Method and apparatus for pulse width modulation control of an AC induction motor  

DOE Patents (OSTI)

An inverter is connected between a source of DC power and a three-phase AC induction motor, and a micro-processor-based circuit controls the inverter using pulse width modulation techniques. In the disclosed method of pulse width modulation, both edges of each pulse of a carrier pulse train are equally modulated by a time proportional to sin .THETA., where .THETA. is the angular displacement of the pulse center at the motor stator frequency from a fixed reference point on the carrier waveform. The carrier waveform frequency is a multiple of the motor stator frequency. The modulated pulse train is then applied to each of the motor phase inputs with respective phase shifts of 120.degree. at the stator frequency. Switching control commands of electronic switches in the inverter are stored in a random access memory (RAM) and the locations of the RAM are successively read out in a cyclic manner, each bit of a given RAM location controlling a respective phase input of the motor. The DC power source preferably comprises rechargeable batteries and all but one of the electronic switches in the inverter can be disabled, the remaining electronic switch being part of a "flyback" DC-DC converter circuit for recharging the battery.

Geppert, Steven (Bloomfield Hills, MI); Slicker, James M. (Union Lake, MI)

1984-01-01T23:59:59.000Z

188

Extraction of gadolinium from high flux isotope reactor control plates. [Alternative method  

SciTech Connect

Gadolinium-153 is an important radioisotope used in the diagnosis of various bone disorders. Recent medical and technical developments in the detection and cure of osteoporosis, a bone disease affecting an estimated 50 million people, have greatly increased the demand for this isotope. The Oak Ridge National Laboratory (ORNL) has produced /sup 153/Gd since 1980 primarily through the irradiation of a natural europium-oxide powder followed by the chemical separation of the gadolinium fraction from the europium material. Due to the higher demand for /sup 153/Gd, an alternative production method to supplement this process has been investigated. This process involves the extraction of gadolinium from the europium-bearing region of highly radioactive, spent control plates used at the High Flux Isotope Reactor (HFIR) with a subsequent re-irradiation of the extracted material for the production of the /sup 153/Gd. Based on the results of experimental and calculational analyses, up to 25 grams of valuable gadolinium (greater than or equal to60% enriched in /sup 152/Gd) resides in the europium-bearing region of the HFIR control components of which 70% is recoverable. At a specific activity yield of 40 curies of /sup 153/Gd for each gram of gadolinium re-irradiated, 700 one-curie sources can be produced from each control plate assayed.

Kohring, M.W.

1987-04-01T23:59:59.000Z

189

Advanced Instrumentation and Control Methods for Small and Medium Reactors with IRIS Demonstration  

SciTech Connect

Development and deployment of small-scale nuclear power reactors and their maintenance, monitoring, and control are part of the mission under the Small Modular Reactor (SMR) program. The objectives of this NERI-consortium research project are to investigate, develop, and validate advanced methods for sensing, controlling, monitoring, diagnosis, and prognosis of these reactors, and to demonstrate the methods with application to one of the proposed integral pressurized water reactors (IPWR). For this project, the IPWR design by Westinghouse, the International Reactor Secure and Innovative (IRIS), has been used to demonstrate the techniques developed under this project. The research focuses on three topical areas with the following objectives. Objective 1 - Develop and apply simulation capabilities and sensitivity/uncertainty analysis methods to address sensor deployment analysis and small grid stability issues. Objective 2 - Develop and test an autonomous and fault-tolerant control architecture and apply to the IRIS system and an experimental flow control loop, with extensions to multiple reactor modules, nuclear desalination, and optimal sensor placement strategy. Objective 3 - Develop and test an integrated monitoring, diagnosis, and prognosis system for SMRs using the IRIS as a test platform, and integrate process and equipment monitoring (PEM) and process and equipment prognostics (PEP) toolboxes. The research tasks are focused on meeting the unique needs of reactors that may be deployed to remote locations or to developing countries with limited support infrastructure. These applications will require smaller, robust reactor designs with advanced technologies for sensors, instrumentation, and control. An excellent overview of SMRs is described in an article by Ingersoll (2009). The article refers to these as deliberately small reactors. Most of these have modular characteristics, with multiple units deployed at the same plant site. Additionally, the topics focus on meeting two of the eight needs outlined in the recently published 'Technology Roadmap on Instrumentation, Control, and Human-Machine Interface (ICHMI) to Support DOE Advanced Nuclear Energy Programs' which was created 'to provide a systematic path forward for the integration of new ICHMI technologies in both near-term and future nuclear power plants and the reinvigoration of the U.S. nuclear ICHMI community and capabilities.' The research consortium is led by The University of Tennessee (UT) and is focused on three interrelated topics: Topic 1 (simulator development and measurement sensitivity analysis) is led by Dr. Mike Doster with Dr. Paul Turinsky of North Carolina State University (NCSU). Topic 2 (multivariate autonomous control of modular reactors) is led by Dr. Belle Upadhyaya of the University of Tennessee (UT) and Dr. Robert Edwards of Penn State University (PSU). Topic 3 (monitoring, diagnostics, and prognostics system development) is led by Dr. Wes Hines of UT. Additionally, South Carolina State University (SCSU, Dr. Ken Lewis) participated in this research through summer interns, visiting faculty, and on-campus research projects identified throughout the grant period. Lastly, Westinghouse Science and Technology Center (Dr. Mario Carelli) was a no-cost collaborator and provided design information related to the IRIS demonstration platform and defining needs that may be common to other SMR designs. The results of this research are reported in a six-volume Final Report (including the Executive Summary, Volume 1). Volumes 2 through 6 of the report describe in detail the research and development under the topical areas. This volume serves to introduce the overall NERI-C project and to summarize the key results. Section 2 provides a summary of the significant contributions of this project. A list of all the publications under this project is also given in Section 2. Section 3 provides a brief summary of each of the five volumes (2-6) of the report. The contributions of SCSU are described in Section 4, including a summary of undergraduate research exper

J. Wesley Hines; Belle R. Upadhyaya; J. Michael Doster; Robert M. Edwards; Kenneth D. Lewis; Paul Turinsky; Jamie Coble

2011-05-31T23:59:59.000Z

190

Soil and Vegetation Management: Keys to Water Conservation on Rangeland  

E-Print Network (OSTI)

The amount of water that soaks into the soil largely determines plant productivity. We can manage and conserve water where and when it falls, and by controlling the kind of vegetation we can make the fullest use of rain water. This publication...

Schuster, Joseph L.

2001-01-11T23:59:59.000Z

191

Surge Block Method for Controlling Well Clogging and Sampling Sediment during Bioremediation  

SciTech Connect

A surge block treatment method (i.e. inserting a solid rod plunger with a flat seal that closely fits the casing interior into a well and stocking it up and down) was performed for the rehabilitation of wells clogged with biomass and for the collection of time series sediment samples during in situ bioremediation tests for U(VI) immobilization at a the U.S. Department of Energy site in Oak Ridge, TN. The clogging caused by biomass growth had been controlled by using routine surge block treatment for18 times over a nearly four year test period. The treatment frequency was dependent of the dosage of electron donor injection and microbial community developed in the subsurface. Hydraulic tests showed that the apparent aquifer transmissivity at a clogged well with an inner diameter (ID) of 10.16 cm was increased by 8 13 times after the rehabilitation, indicating the effectiveness of the rehabilitation. Simultaneously with the rehabilitation, the surge block method was successfully used for collecting time series sediment samples composed of fine particles (clay and silt) from wells with ID 1.9 10.16 cm for the analysis of mineralogical and geochemical composition and microbial community during the same period. Our results demonstrated that the surge block method provided a cost-effective approach for both well rehabilitation and frequent solid sampling at the same location.

Wu, Wei-min [Stanford University] [Stanford University; Watson, David B [ORNL] [ORNL; Luo, Jian [Stanford University] [Stanford University; Carley, Jack M [ORNL] [ORNL; Mehlhorn, Tonia L [ORNL] [ORNL; Kitanidis, Peter K. [Stanford University] [Stanford University; Jardine, Philip [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Criddle, Craig [Stanford University] [Stanford University

2013-01-01T23:59:59.000Z

192

Corrosion of austenitic stainless steels and nickel-base alloys in supercritical water and novel control methods  

SciTech Connect

This chapter contains sections titled: (1) Introduction; (2) Thermodynamics of Alloy Oxidation; (3) Corrosion of Austenitic Stainless Steels and Ni-Base Alloys in SCW; (4) Novel Corrosion Control Methods; (5) Factors Influencing Corrosion; (6) Summary; and (7) References.

Tan, Lizhen [ORNL; Allen, Todd R. [University of Wisconsin, Madison; Yang, Ying [ORNL

2012-01-01T23:59:59.000Z

193

Comparison of three methods for control of postoperative pain in dogs after total ear canal ablation with lateral bulla osteotomy  

E-Print Network (OSTI)

This prospective study compared three methods of postoperative pain control in dogs undergoing total ear canal ablation with lateral bulla osteotomy. The hypothesis was that systemic opioids in conjunction with preoperative local nerve blocks would...

Buback, Janice Lynelle

2012-06-07T23:59:59.000Z

194

The Texas Two-Step Method: Do-It-Yourself Fire Ant Control for Homes and Neighborhoods  

E-Print Network (OSTI)

The two-step method is a simple approach to controlling fire ants. The first step is to broadcast a bait insecticide over the entire yard. The second step is to treat individual mounds. The tips in this publication will help you control pesky fire...

Merchant, Michael E.; Drees, Bastiaan M.

2006-08-07T23:59:59.000Z

195

Nuclear Instruments and Methods in Physics Research A 467468 (2001) 202205 Control and data acquisition systems for high field  

E-Print Network (OSTI)

Nuclear Instruments and Methods in Physics Research A 467­468 (2001) 202­205 Control and data, Budker Institute of Nuclear Physics of SBRAS, Lavrentyeva 11, 630090 Novosibirsk, Russia Abstract for installation at Bessy-II (Germany). The second one controls a 10 T wiggler which is under testing now

Kozak, Victor R.

196

Linear motion device and method for inserting and withdrawing control rods  

DOE Patents (OSTI)

A linear motion device, more specifically a control rod drive mechanism (CRDM) for inserting and withdrawing control rods into a reactor core, is capable of independently and sequentially positioning two sets of control rods with a single motor stator and rotor. The CRDM disclosed can control more than one control rod lead screw without incurring a substantial increase in the size of the mechanism.

Smith, Jay E. (Pittsburgh, PA)

1984-01-01T23:59:59.000Z

197

A study on the control method of single duct VAV terminal unit through the determination of proper minimum air flow  

Science Journals Connector (OSTI)

Abstract The objective of this study was proposed a control method for the minimum air flow rate of a VAV terminal unit at an office building. The minimum air flow rate of the VAV terminal unit is the key factor affecting the thermal comfort, indoor air quality (IAQ), stratification and energy consumption, depending on the operating mode of the VAV system. Therefore, selecting the proper minimum air flow is very important. In this study, an algorithm was proposed considering the IAQ and stratification. The vertical air temperature was analyzed to find the supply air temperature that did not cause stratification. The integrated control algorithm with an air flow increase model in the VAV terminal unit and outdoor air intake rate increase model in the AHU was developed by comparing the energy consumption. Finally, the existing and proposed control algorithms were compared through a simulation. The proposed method was found to be more effective than the existing control method. The proposed VAV terminal unit control method satisfies all the conditions of indoor thermal comfort, IAQ and stratification issue. As a result of the energy comparison with the existing control method, the method satisfies not only the indoor thermal comfort, IAQ and stratification issue, but also reduces the energy consumption.

Su-Hyun Kang; Hyo-Jun Kim; Young-Hum Cho

2014-01-01T23:59:59.000Z

198

Engine including hydraulically actuated valvetrain and method of valve overlap control  

DOE Patents (OSTI)

An exhaust valve control method may include displacing an exhaust valve in communication with the combustion chamber of an engine to an open position using a hydraulic exhaust valve actuation system and returning the exhaust valve to a closed position using the hydraulic exhaust valve actuation assembly. During closing, the exhaust valve may be displaced for a first duration from the open position to an intermediate closing position at a first velocity by operating the hydraulic exhaust valve actuation assembly in a first mode. The exhaust valve may be displaced for a second duration greater than the first duration from the intermediate closing position to a fully closed position at a second velocity at least eighty percent less than the first velocity by operating the hydraulic exhaust valve actuation assembly in a second mode.

Cowgill, Joel (White Lake, MI)

2012-05-08T23:59:59.000Z

199

Method of controlling injection of oxygen into hydrogen-rich fuel cell feed stream  

DOE Patents (OSTI)

A method of operating a H.sub.2 --O.sub.2 fuel cell fueled by hydrogen-rich fuel stream containing CO. The CO content is reduced to acceptable levels by injecting oxygen into the fuel gas stream. The amount of oxygen injected is controlled in relation to the CO content of the fuel gas, by a control strategy that involves (a) determining the CO content of the fuel stream at a first injection rate, (b) increasing the O.sub.2 injection rate, (c) determining the CO content of the stream at the higher injection rate, (d) further increasing the O.sub.2 injection rate if the second measured CO content is lower than the first measured CO content or reducing the O.sub.2 injection rate if the second measured CO content is greater than the first measured CO content, and (e) repeating steps a-d as needed to optimize CO consumption and minimize H.sub.2 consumption.

Meltser, Mark Alexander (Pittsford, NY); Gutowski, Stanley (Pittsford, NY); Weisbrod, Kirk (Los Alamos, NM)

2001-01-01T23:59:59.000Z

200

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-11)  

SciTech Connect

BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission line. Also, access road clearing will be conducted. All work will be in accordance with the National Electrical Safety Code and BPA standards. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the transmission line. BPA's overall goal is to have low-growing plant communities along the rights-of-way to control the development of potentially threatening vegetation. This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision (ROD).

N /A

2001-05-15T23:59:59.000Z

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


201

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-12)  

SciTech Connect

BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission line. Also, access road clearing will be conducted. All work will be in accordance with the National Electrical Safety Code and BPA standards. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the transmission line. BPA's overall goal is to have low-growing plant communities along the rights-of-way to control the development of potentially threatening vegetation. This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision (ROD).

N /A

2001-05-15T23:59:59.000Z

202

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-13)  

SciTech Connect

BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission line. Also, access road clearing will be conducted. All work will be in accordance with the National Electrical Safety Code and BPA standards. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the transmission line. BPA's overall goal is to have low-growing plant communities along the rights-of-way to control the development of potentially threatening vegetation. This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision (ROD).

N /A

2001-06-06T23:59:59.000Z

203

DOE/EIS-0285; Bonneville Power Administration Transmission System Vegetation Management Program Final Environmental Impact Statement (May 2000)  

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

Purpose, Need and Issues Purpose, Need and Issues S-1 Summary In this summary: ÂŚ Purpose, Need, and Issues ÂŚ Methods and Their Impacts ÂŚ Planning Steps ÂŚ Program Alternatives and Their Impacts Purpose, Need and Issues Bonneville Power Administration (Bonneville) is responsible for maintaining a network of 15,000 miles of electric transmission lines and 350 substations. This electric transmission system operates in seven states of the Pacific Northwest. (See Figure S-1.) Those states offer a great diversity of vegetation (from trees to brush to grasses), which can interfere with electric power flow, pose safety problems for us and neighboring members of the public, or interfere with our ability to maintain our system. We need to keep vegetation a safe distance away from our electric power facilities and control

204

Microsoft Word - Advanced Control Methods_Final_v2_0.doc  

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

and control are normally integrated with a station computer, providing human-machine interface for local control, monitoring, and system configuration. * Makes the substation...

205

E-Print Network 3.0 - alternative control methods Sample Search...  

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

- Department of Mathematics, University of Houston Collection: Engineering 17 Teaching Process Control in the 21st Century: What has Changed? Summary: the multivariable control...

206

Fruit and Vegetable Consumption by Low-Income Americans  

E-Print Network (OSTI)

ML, Schillo BA. 5 A Day fruit and vegetable interventionof perceived barriers to fruit and vegetable consumptionKA, Potter JD. Vegetables, fruit, and cancer prevention: a

Sisson, Aimee

2002-01-01T23:59:59.000Z

207

Chapter 3, Commercial and Industrial Lighting Controls Evaluation Protocol: The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures  

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

3: Commercial and 3: Commercial and Industrial Lighting Controls Evaluation Protocol Stephen Carlson, DNV KEMA Subcontract Report NREL/SR-7A30-53827 April 2013 The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures 3 - 1 Chapter 3 - Table of Contents 1 Measure Description .............................................................................................................. 2 2 Application Conditions of Protocol ....................................................................................... 3 3 Savings Calculations .............................................................................................................. 5 3.1 Algorithms ....................................................................................................................... 5

208

Environmental Effects of Woody Vegetation  

E-Print Network (OSTI)

State University of Science and Technology, Ames, Iowa. In Iowa, trees and shrubs are a vital asset1 Environmental Effects of Woody Vegetation F-319/August 2005 FORESTRY EXTENSION NOTES IOWA STATE in improv- ing human comfort by shielding people from direct solar radiation. What happens to the solar

Koford, Rolf R.

209

Synthesis of photo-and pH-responsive composite nanoparticles using a two-step controlled radical polymerization method  

E-Print Network (OSTI)

Synthesis of photo- and pH-responsive composite nanoparticles using a two-step controlled radical polymerizations Stimuli-responsive polymers a b s t r a c t We present a versatile synthetic method for photo in the composite nanoparticles, and their photo- and pH-responsive behaviors were investigated. With this method

Zhao, Yue

210

Effects of Woody Vegetation Removal on Soil Water Dynamics in a South Texas Shrubland  

E-Print Network (OSTI)

removal on various soil textures we studied changes in soil water, rooting depth, and the role of water redistribution by woody vegetation. Woody vegetation was removed using common methods of cut-stump and roller chop across three soil types. Soil water...

Mattox, April Marie

2013-07-30T23:59:59.000Z

211

-Climate and pH as determinants of vegetation succession in man-made habitats -701 Journal of Vegetation Science 18: 701-710, 2007  

E-Print Network (OSTI)

sites in areas deforested by air pollution. Methods: We investigated vegetation patterns on 15 succes, spoil heaps after coal mining, sites at water reservoirs, extracted sand pit and peatland and reclaimed

KratochvĂ­l, Lukas

212

Control of the rate of evaporation in protein crystallization by the `microbatch under oil' method  

Science Journals Connector (OSTI)

A procedure is presented for controlling the rate of evaporation during `microbatch under oil' protein crystallization.

Brumshtein, B.

2008-08-30T23:59:59.000Z

213

Straight Vegetable Oil as a Diesel Fuel?  

SciTech Connect

Two-page fact sheet discussing the pitfalls of using straight vegetable oil (SVO) as a transportation fuel.

Not Available

2006-04-01T23:59:59.000Z

214

Methods, systems and apparatus for controlling third harmonic voltage when operating a multi-space machine in an overmodulation region  

SciTech Connect

Methods, system and apparatus are provided for controlling third harmonic voltages when operating a multi-phase machine in an overmodulation region. The multi-phase machine can be, for example, a five-phase machine in a vector controlled motor drive system that includes a five-phase PWM controlled inverter module that drives the five-phase machine. Techniques for overmodulating a reference voltage vector are provided. For example, when the reference voltage vector is determined to be within the overmodulation region, an angle of the reference voltage vector can be modified to generate a reference voltage overmodulation control angle, and a magnitude of the reference voltage vector can be modified, based on the reference voltage overmodulation control angle, to generate a modified magnitude of the reference voltage vector. By modifying the reference voltage vector, voltage command signals that control a five-phase inverter module can be optimized to increase output voltages generated by the five-phase inverter module.

Perisic, Milun; Kinoshita, Michael H; Ranson, Ray M; Gallegos-Lopez, Gabriel

2014-06-03T23:59:59.000Z

215

A robust high-speed position control scheme based on computed torque method for 2 DOF flexible link robot arms  

Science Journals Connector (OSTI)

Our group has proposed a high-speed tip position control scheme (Sawada and Itamiya, 2012b) which can be applied to both a flexible link robot arm and a rigid link robot arm. It can be regarded as a natural extension of the computed torque method for a rigid link robot arm. This method can achieve a high-speed position control for 2 DOF flexible link robot arm when the exact model of the controlled object is known. However, this method does not have robustness to modelling errors. In this paper, we propose an adaptive identification method in order to decrease the modelling error from the control system in which a nominal control law is used. Then, we use the closed loop adaptive identification, considering the movable range of the robot arm. As a result, the high-speed position control can be achieved by using parameter estimates. Its validity of the proposed scheme is shown by a stability analysis and is also illustrated by the experimental results on the frequency response of the link angle and that of the deflection angle.

K. Itamiya; M. Sawada

2013-01-01T23:59:59.000Z

216

Paravertebral Block: An Improved Method of Pain Control in Percutaneous Transhepatic Biliary Drainage  

SciTech Connect

Background and Purpose. Percutaneous transhepatic biliary drainage remains a painful procedure in many cases despite the routine use of large amounts of intravenous sedation. We present a feasibility study of thoracic paravertebral blocks in an effort to reduce pain during and following the procedure and reduce requirements for intravenous sedation. Methods. Ten consecutive patients undergoing biliary drainage procedures received fluoroscopically guided paravertebral blocks and then had supplemental intravenous sedation as required to maintain patient comfort. Levels T8-T9 and T9-T10 on the right were targeted with 10-20 ml of 0.5% bupivacaine. Sedation requirements and pain levels were recorded. Results. Ten biliary drainage procedures in 8 patients were performed for malignancy in 8 cases and for stones in 2. The mean midazolam use was 1.13 mg IV, and the mean fentanyl requirement was 60.0 {mu}g IV in the block patients. Two episodes of hypotension, which responded promptly to volume replacement, may have been related to the block. No serious complications were encountered. The mean pain score when traversing the chest wall, liver capsule, and upon entering the bile ducts was 0.1 on a scale of 0 to 10, with 1 patient reporting a pain level of 1 and 9 reporting 0. The mean peak pain score, encountered when manipulating at the common bile duct level or when addressing stones there, was 5.4 and ranged from 0 to 10. Conclusions. Thoracic paravertebral block with intravenous sedation supplementation appears to be a feasible method of pain control during biliary interventions.

Culp, William C., E-mail: culpwilliamc@uams.edu; McCowan, Timothy C. [University of Arkansas for Medical Sciences, Department of Radiology (United States); DeValdenebro, Miguel [University of Texas Medical Branch, Department of Anesthesiology (United States); Wright, Lonnie B.; Workman, James L. [University of Arkansas for Medical Sciences, Department of Radiology (United States); Culp, William C. [Scott and White Clinic and Memorial Hospital, The Texas A and M University System Health Science Center College of Medicine, Department of Anesthesiology (United States)

2006-12-15T23:59:59.000Z

217

Method of Controlling Corona Effects and Breakdown Voltage of Small Air Gaps Stressed by Impulse Voltages  

E-Print Network (OSTI)

This paper investigates the influence of a resistor on the dielectric behavior of an air gap. The resistor is connected in series with the air gap and the latter is stressed by impulse voltage. Air gap arrangements of different geometry with either the rod or the plate grounded are stressed with impulse voltages of both positive and negative polarity. The resistor is connected in series with the air gap in the return circuit connecting the gap with the impulse generator. The method followed involves the investigation of the graphs of the charging time concerning the air gaps capacitances, in connection to the value of the resistor, the geometry of the gap, the effect of grounding and the polarity effect. It is determined that the charging time of the air gap increases, as the value of the resistor increases. It is also determined that the peak voltage value of the fully charged air gap decreases as the value of the resistor increases. The results of the mathematical and simulation analysis are compared with the results of the oscillograms taken from experimental work. In addition and consequently to the above results it is concluded from the experimental work that the in series connection of the resistor in the circuit has significant influence on corona pulses (partial discharges) occurring in the gap and on the breakdown voltage of the gap. A new method of controlling the corona effects and consequently the breakdown voltage of small air gaps stressed by impulse voltage of short duration in connection to the ground effect and the polarity effect has arisen. Furthermore through mathematical analysis of the charging graphs obtained from simulation and experimental oscillograms there was a calculation of the values of the capacitance of the air gaps in relation to their geometry and the results were compared to the values calculated with mathematical analysis.

Athanasios Maglaras; Trifon Kousiouris; Frangiskos Topalis; Dimitrios Katsaros; Leandros A. Maglaras; Konstantina Giannakopoulou

2014-10-15T23:59:59.000Z

218

Relation of Soils, Rainfall and Grazing Management to Vegetation, Western Edwards Plateau of Texas.  

E-Print Network (OSTI)

for the Study of Vegetation .................................. 6 ............... Survey Procedure for the Inclined-point-contact Method 6 The Belt-transect Method ....................................................................... 7 Brush Survey.... These belts covered approximately the same area charted by the inclined-point-contact method. The belt transect used in this study was 1 . foot wide and 20 feet long. The zero point on the belt was maintained at the tagged stake. The . vegetation within...

Young, Vernon A. (Vernon Alphus); Thomas, Gerald W.

1954-01-01T23:59:59.000Z

219

Combustion method for simultaneous control of nitrogen oxides and products of incomplete combustion  

SciTech Connect

A method is described for combusting material with controlled generation of both nitrogen oxides and products of incomplete combustion comprising: (A) combusting material in a first combustion zone to produce gaseous exhaust containing products of incomplete combustion and products of complete combustion; (B) passing the gaseous exhaust from the first combustion zone into a second combustion zone having a width and an axial direction; (C) injecting through a lance with an orientation substantially parallel to said axial direction at least one stream of oxidant, without fuel, having a diameter less than 1/100 of the width of the second combustion zone and having an oxygen concentration of at least 30% into the second combustion zone at a high velocity of at least 300 feet per second; (D) aspirating products of incomplete combustion into the high velocity oxidant; (E) combusting products of incomplete combustion aspirated into the high velocity oxidant with high velocity oxidant within the second combustion zone to carry out a stable combustion by the mixing of the aspirated products of incomplete combustion with the high velocity oxidant; and (F) spreading out the combustion reaction by aspiration of products of complete combustion into the oxidant, said products of complete combustion also serving as a heat sink, to inhibit NO[sub x] formation.

Ho, Min-Da.

1993-05-25T23:59:59.000Z

220

Improved Engine Control Strategies Enabled by Digital Signal-Processing Method for Zirconia Exhaust Sensors  

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

A new approach for wideband O2 sensor control that treats a pump-cell sensor not as a feedback controlled system, but as the Ťanalog? front-end of a modified Delta-Sigma analog-to-Digital Converter

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


221

Media for control of thermal emission and methods of applications thereof  

DOE Patents (OSTI)

A new class of media for control of emission of thermal radiation from an object or part thereof is disclosed. These materials can be used for a wide variety of thermal control applications.

Lin, Shawn-Yu (Albuquerque, NM); Fleming, James G. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

222

Ultrasonic Motor’s H-Bridge Control Circuit Using Phase-Shift PWM Method  

Science Journals Connector (OSTI)

Ultrasonic motor is a special kind of actuator for motion control system. Because of the peculiar mechanism of ultrasonic motor, control circuit is needed for the operation of ultrasonic motor. The performance of...

Shi Jingzhuo; Zhang Yanan

2014-06-01T23:59:59.000Z

223

MAPSS Vegetation Modeling | Open Energy Information  

Open Energy Info (EERE)

MAPSS Vegetation Modeling MAPSS Vegetation Modeling Jump to: navigation, search Tool Summary Name: MAPSS Vegetation Modeling Agency/Company /Organization: United States Forest Service Sector: Land Focus Area: Agriculture, Biomass, Forestry Topics: Co-benefits assessment, - Environmental and Biodiversity, Resource assessment Resource Type: Maps, Software/modeling tools User Interface: Desktop Application Website: www.fs.fed.us/pnw/mdr/mapss/ MAPSS Vegetation Modeling Screenshot References: MAPSS[1] Applications "A landscape- to global-scale vegetation distribution model that was developed to simulate the potential biosphere impacts and biosphere-atmosphere feedbacks from climatic change. Model output from MAPSS has been used extensively in the Intergovernmental Panel on Climate

224

System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems  

DOE Patents (OSTI)

A control system for an engine includes a first lift control module and a second lift control module. The first lift control module increases lift of M valves of the engine to a predetermined valve lift during a period before disabling or re-enabling N valves of the engine. The second lift control module decreases the lift of the M valves to a desired valve lift during a period after enabling or re-enabling the N valves of the engine, wherein N and M are integers greater than or equal to one.

Brennan, Daniel G; Marriott, Craig D; Cowgill, Joel; Wiles, Matthew A; Patton, Kenneth James

2014-09-23T23:59:59.000Z

225

A method to avoid negative damped low frequent tower vibrations for a floating, pitch controlled wind turbine  

Science Journals Connector (OSTI)

Wind turbines mounted on floating platforms is subjected to completely different and soft foundation properties, than seen for onshore wind turbines. This leads to much lower natural frequencies, related to the rigid body motion of the structure which again leads to an unfavorable coupling between tower motion and the pitch control of the turbine. The tower motion in combination with the aerodynamics and the pitch control will be poor or even negative damped which causes large transient loads if not accounted for. The reason for this low damping is shown to be caused by a too fast pitch regulation compared to the motion of the tower or in other words the lowest control-structure natural frequency must be lower than the lowest critical tower frequency. A control algorithm is presented including the tuning method (pole-placement) to ensure the desired control frequency which provides stable tower vibration modes.

T J Larsen; T D Hanson

2007-01-01T23:59:59.000Z

226

A SummarA SummarA SummarA SummarA Summary of Methods for Controllingy of Methods for Controllingy of Methods for Controllingy of Methods for Controllingy of Methods for Controlling Phragmites australisPhragmites australisPhragmites australisPhragmites aus  

E-Print Network (OSTI)

of Methods for Controllingy of Methods for Controllingy of Methods for Controlling Phragmites australisPhragmites australisPhragmites australisPhragmites australisPhragmites australis By Libby Norris, James E. Perry, and Kirk J. Havens Introduction Common Reed (Phragmites australis) is a tall perennial wetland grass

227

Vegetation  

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

Rails 'R Utility ROW Roads oTES Plants (2) 2 Other Set-Asides D Three Rivers Landfill D Hydric Soils 380 Soils Soil Series and Phase DBaB DBaC .Pk TrB TuE TuF VaC o...

228

Evaluation of geophysical methods for the detection of subsurface tetracgloroethyene in controlled spill experiments  

E-Print Network (OSTI)

before, during, and after the PCE injection. Figure 5. Crosswas taken just before, during and after the PCE injection.A controlled Tetrachloroethylene (PCE) spill experiment was

Mazzella, Aldo; Majer, Ernest L.

2006-01-01T23:59:59.000Z

229

Domain Decomposition Methods in Optimal Flow Control for High Performance Computing.  

E-Print Network (OSTI)

??This thesis is concerned with linear and non-linear optimal flow control problems which are modeled by systems of partial differential equations. The numerical treatment of… (more)

Ketelaer, Eva

2013-01-01T23:59:59.000Z

230

Method for valve seating control for an electro-hydraulic engine valve  

DOE Patents (OSTI)

Valve lift in an internal combustion engine is controlled by an electro-hydraulic actuation mechanism including a selectively actuable hydraulic feedback circuit.

Sun, Zongxuan (Plymouth, MN)

2011-01-11T23:59:59.000Z

231

CHARACTERIZATION OF MICROTOPOGRAPHY AND ITS INFLUENCE ON VEGETATION PATTERNS IN CREATED WETLANDS  

E-Print Network (OSTI)

CHARACTERIZATION OF MICROTOPOGRAPHY AND ITS INFLUENCE ON VEGETATION PATTERNS IN CREATED WETLANDS, Virginia, USA 20192 Abstract: Created wetlands are increasingly used to mitigate wetland loss. Thus, identifying wetland creation methods that enhance ecosystem development might increase the likelihood

232

Design of Rotor-side Controller Using Adaptive Time-frequency Method for DFIG Bearing Fault Detection  

Science Journals Connector (OSTI)

To ensure the reliable operation and power quality of wind power systems, the fault-tolerant control for DFIG is studied in this paper. Based on measured motor currents data, an adaptive statistical time-frequency method is then used to detect the fault ... Keywords: Doubly-fed induction generator, monitoring, wind turbine, rotor side inverter

Suratsavadee K. Korkua

2013-07-01T23:59:59.000Z

233

Increasing the robustness of the input-shaping method using adaptive control  

E-Print Network (OSTI)

. 1903-1910. [16] K. J. Astrom and B. Wittcnrnark, Adaptive Control, 2nd ed. Uew York: Addison Wesley 1995. 53 [17] S. Sastry and 5rf. Bodson, Adaptive Control: Stability, Convergence snd Robust- neas, 1st, ed. Englewood Cliffs: Prentice ilail, 1989...

Dharne, Avinash Gopal

2012-06-07T23:59:59.000Z

234

Vegetation survey of knapweed on the Yakima Training Center - 1992  

SciTech Connect

This report summarizes and discusses the results of a vegetation survey conducted in 1992 on a portion of the Yakima Training Center (YTC). Pacific Northwest Laboratory (PNL) conducted this survey and a similar survey in 1991 for the U.S. Department of the Army. The objectives of the survey were to evaluate the impact of the herbicide picloram on forbs where aerial applications of picloram were made in 1988, 1989, and 1991 to control knapweed infestations. Forbs are of special interest because they are an important part of the spring and summer diet of the western sage grouse, which is a U.S. Fish and Wildlife Service candidate species for the threatened and endangered list. We also conducted a limited evaluation of the effectiveness of the spray program in controlling the spread of knapweed. Percent plant canopy cover and number of forbs were measured on 120 transacts on the herbicide-treated and untreated control areas. Herbicide treatment in 1991 resulted in a significant reduction in knapweed based on percent cover and density. The treatment areas also all had lower percent canopy cover of perennial forbs and fewer perennial forbs compared to control areas. Canopy cover of shrubs and annual, biennial, and perennial forbs measured on the YTC increased between the 1991 and 1992 survey, which may indicate a recovery of these vegetation types after disturbance. These increases also could reflect the mild 1992 winter and superior growing conditions in the spring of 1992. We recommend that these vegetation transacts continue to be monitored for an additional growing season to evaluate (1) whether knapweed increases to its previous abundance in the 1991 herbicide-treated area, (2) the efficacy of herbicide application on transacts along roadways, and (3) the increase in invasive annuals in herbicide-treated areas and the possible effects on community vegetation structure and sage grouse habitat.

Downs, J.L.; Cadoret, N.A.; Rickard, W.H.

1994-04-01T23:59:59.000Z

235

SUN Regulates Vegetative and Reproductive Organ Shape by Changing Cell Division Patterns1[C][W][OA  

E-Print Network (OSTI)

SUN Regulates Vegetative and Reproductive Organ Shape by Changing Cell Division Patterns1[C controlling the elongated fruit shape of tomato (Solanum lycopersicum) is SUN. In this study, we explored the roles of SUN in vegetative and reproductive development using near isogenic lines (NILs) that differ

van der Knaap, Esther

236

Externally excited resonant free piston stirling engine thermal amplifier system and method of operation and control therefor  

SciTech Connect

This patent describes an externally excited resonant free piston stirling engine thermal amplifier and load system driven thereby which is over damped at all operating load levels and does not freely oscillate. This system and its method of operation consists of: 1.) A variably controlled drive motor coupled with the displacer/piston of the engine; 2.) A controllable power supply coupled to the drive motor to provide variably controlled energizing electric signals to the drive motor; 3.) A device for sensing at least one selected operating parameter of the stirling engine thermal amplifier and load system during operation to drive a load; and 4.) A feedback system which includes a response to the sensed stirling engine thermal amplifier system operating parameter signal for deriving at least one feedback control signal operative to control the energizing electric signals supplied to the drive motor for controlling its operation. These signals then precisely, variably and stably controll the operation of the stirling engine thermal amplifier and load system.

Vitale, N.G.; Dhar, M.

1986-02-11T23:59:59.000Z

237

Particle Swarm Optimization and Gradient Descent Methods for Optimization of PI Controller for AGC of Multi-area Thermal-Wind-Hydro Power Plants  

Science Journals Connector (OSTI)

The automatic generation control (AGC) of three unequal interconnected Thermal, Wind and Hydro power plant has been designed with PI controller. Further computational intelligent technique Particle Swarm Optimization and conventional Gradient Descent ... Keywords: Automatic generation control, Particle swarm optimization, Gradient Descent method, Generation rate constraint, Area control error, Wind energy conversion system

Naresh Kumari; A N. Jha

2013-04-01T23:59:59.000Z

238

A parameter identification method for thermal flying-height control sliders  

Science Journals Connector (OSTI)

The MEMS thermal actuated flying-height control (TFC) sliders have been ... industry as an effective design to reduce head-disk spacing in disk drives to achieve Terabit per square inch...2006; Li et al. 2009; Zh...

Gang Sheng; Jianfeng Xu

2011-09-01T23:59:59.000Z

239

Development of Data Quality Control Limits for Data Screening through the "Energy Balance" Method  

E-Print Network (OSTI)

over/underestimation in energy use and increase accuracy in further analysis. It allows engineers and administrators to make more confident and low-risk decisions. This paper proposes a methodology to construct statistical control limits for data...

Masuda, H.; Baltazar, J. C.; Ji, J.; Claridge, D.

240

Linearization Techniques for Controlled Piecewise Deterministic Markov Processes; Application to Zubov's Method  

SciTech Connect

We aim at characterizing domains of attraction for controlled piecewise deterministic processes using an occupational measure formulation and Zubov's approach. Firstly, we provide linear programming (primal and dual) formulations of discounted, infinite horizon control problems for PDMPs. These formulations involve an infinite-dimensional set of probability measures and are obtained using viscosity solutions theory. Secondly, these tools allow to construct stabilizing measures and to avoid the assumption of stability under concatenation for controls. The domain of controllability is then characterized as some level set of a convenient solution of the associated Hamilton-Jacobi integral-differential equation. The theoretical results are applied to PDMPs associated to stochastic gene networks. Explicit computations are given for Cook's model for gene expression.

Goreac, Dan, E-mail: Dan.Goreac@univ-mlv.fr [Universite Paris-Est, LAMA, UMR8050 (France); Serea, Oana-Silvia [Univ. Perpignan Via Domitia, Laboratoire de Matheematiques et PhySique (France)

2012-10-15T23:59:59.000Z

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


241

Formal Method and its Application on Train Operation Control System of Chinese high-speed Railway  

Science Journals Connector (OSTI)

CTCS Level3 is the train control system used in Chinese High speed railway. This system makes use of GSM-R to complete ... communicating approach to ensure the safety of the system. Now in China, CTCS Level3 system

Tao Tang

2011-01-01T23:59:59.000Z

242

Dynamic-Load Compensation Method and Simulation of the Heat-Supply Control System  

Science Journals Connector (OSTI)

Air temperature compensators were used currently to change the set value of the return-water temperature in heat-supply control systems according to outdoor temperature. However, the great inertia effect makes it...

Yanling Zhang; Yongming Song

2014-01-01T23:59:59.000Z

243

Higher-Order Methods for Determining Optimal Controls and Their Sensitivities  

E-Print Network (OSTI)

..................................................... 7 2. OPTIMAL CONTROL SOLUTION METHODOLOGY .................................. 9 2.1 Approximating the Hamilton-Jacobi-Bellman Equation ...................... 9 2.2 Extension to Terminally Constrained Problems.... The final time may or may not be specified, depending on the particular problem. 1.2 Two Point Boundary Value Problem The optimal control problem established in Section 1.1 is transformed into a TPBVP using the principles of variational calculus...

McCrate, Christopher M.

2010-07-14T23:59:59.000Z

244

Ecophysiology of forest and savanna vegetation  

E-Print Network (OSTI)

Lowland vegetation of tropical South America—An overview, instate for tropical South America, Geophys. Res. Lett. , 30(dry seasonal forests of South America, Ann. Mo. Bot. Gard. ,

Lloyd, J.; Goulden, M. L.; Ometto, J. P.; Patino, S.; Fyllas, N. M.; Quesada, C. A.

2013-01-01T23:59:59.000Z

245

Method of installing a control room console in a nuclear power plant  

DOE Patents (OSTI)

An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

Scarola, Kenneth (Windsor, CT); Jamison, David S. (Windsor, CT); Manazir, Richard M. (North Canton, CT); Rescorl, Robert L. (Vernon, CT); Harmon, Daryl L. (Enfield, CT)

1994-01-01T23:59:59.000Z

246

New frontiers in oilseed biotechnology: meeting the growing global demand for vegetable oils for food, feed, biofuel, and industrial uses.  

SciTech Connect

Vegetable oils have historically been a valued commodity for food use and to a lesser extent for non-edible applications such as detergents and lubricants. The increasing reliance on biodiesel as a transportation fuel has contributed to rising demand and higher prices for vegetable oils. Biotechnology offers a number of solutions to meet the growing need for affordable vegetable oils and vegetable oils with improved fatty acid compositions for food and industrial uses. New insights into oilseed metabolism and its transcriptional control are enabling biotechnological enhancement of oil content and quality. Alternative crop platforms and emerging technologies for metabolic engineering also hold promise for meeting global demand for vegetable oils and for enhancing nutritional, industrial, and biofuel properties of vegetable oils. Here, we highlight recent advances in our understanding of oilseed metabolism and in the development of new oilseed platforms and metabolic engineering technologies.

Lu, C; Napier, JA; Clemente, TE; Cahoon, EB

2011-01-01T23:59:59.000Z

247

Monte Carlo simulation model for electromagnetic scattering from vegetation and inversion of vegetation parameters  

E-Print Network (OSTI)

In this thesis research, a coherent scattering model for microwave remote sensing of vegetation canopy is developed on the basis of Monte Carlo simulations. An accurate model of vegetation structure is essential for the ...

Wang, Li-Fang, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

248

Method and apparatus for controlling fuel/air mixture in a lean burn engine  

DOE Patents (OSTI)

The system for controlling the fuel/air mixture supplied to a lean burn engine when operating on natural gas, gasoline, hydrogen, alcohol, propane, butane, diesel or any other fuel as desired. As specific humidity of air supplied to the lean burn engine increases, the oxygen concentration of exhaust gas discharged by the engine for a given equivalence ratio will decrease. Closed loop fuel control systems typically attempt to maintain a constant exhaust gas oxygen concentration. Therefore, the decrease in the exhaust gas oxygen concentration resulting from increased specific humidity will often be improperly attributed to an excessive supply of fuel and the control system will incorrectly reduce the amount of fuel supplied to the engine. Also, the minimum fuel/air equivalence ratio for a lean burn engine to avoid misfiring will increase as specific humidity increases. A relative humidity sensor to allow the control system to provide a more enriched fuel/air mixture at high specific humidity levels. The level of specific humidity may be used to compensate an output signal from a universal exhaust gas oxygen sensor for changing oxygen concentrations at a desired equivalence ratio due to variation in specific humidity specific humidity. As a result, the control system will maintain the desired efficiency, low exhaust emissions and power level for the associated lean burn engine regardless of the specific humidity level of intake air supplied to the lean burn engine.

Kubesh, John Thomas (San Antonio, TX); Dodge, Lee Gene (San Antonio, TX); Podnar, Daniel James (San Antonio, TX)

1998-04-07T23:59:59.000Z

249

Sandhills Vegetation Will heat from the pipeline affect the growth of vegetation?  

E-Print Network (OSTI)

1 Sandhills Vegetation Will heat from the pipeline affect the growth of vegetation? What we know. Will the Sandhills vegetation grow back after the pipeline is constructed? What we know ­ response by Professor Jerry issues, revegetation problems on the pipeline will be at discreet locations. If surrounding pastures

Nebraska-Lincoln, University of

250

Method for controlling boiling point distribution of coal liquefaction oil product  

DOE Patents (OSTI)

The relative ratio of heavy distillate to light distillate produced in a coal liquefaction process is continuously controlled by automatically and continuously controlling the ratio of heavy distillate to light distillate in a liquid solvent used to form the feed slurry to the coal liquefaction zone, and varying the weight ratio of heavy distillate to light distillate in the liquid solvent inversely with respect to the desired weight ratio of heavy distillate to light distillate in the distillate fuel oil product. The concentration of light distillate and heavy distillate in the liquid solvent is controlled by recycling predetermined amounts of light distillate and heavy distillate for admixture with feed coal to the process in accordance with the foregoing relationships. 3 figs.

Anderson, R.P.; Schmalzer, D.K.; Wright, C.H.

1982-12-21T23:59:59.000Z

251

Layered reactive particles with controlled geometries, energies, and reactivities, and methods for making the same  

DOE Patents (OSTI)

An energetic composite having a plurality of reactive particles each having a reactive multilayer construction formed by successively depositing reactive layers on a rod-shaped substrate having a longitudinal axis, dividing the reactive-layer-deposited rod-shaped substrate into a plurality of substantially uniform longitudinal segments, and removing the rod-shaped substrate from the longitudinal segments, so that the reactive particles have a controlled, substantially uniform, cylindrically curved or otherwise rod-contoured geometry which facilitates handling and improves its packing fraction, while the reactant multilayer construction controls the stability, reactivity and energy density of the energetic composite.

Fritz, Gregory M; Knepper, Robert Allen; Weihs, Timothy P; Gash, Alexander E; Sze, John S

2013-04-30T23:59:59.000Z

252

System and method for bidirectional flow and controlling fluid flow in a conduit  

DOE Patents (OSTI)

A system for measuring bidirectional flow, including backflow, of fluid in a conduit is disclosed. The system utilizes a structural mechanism to create a pressure differential in the conduit. Pressure sensors are positioned upstream from the mechanism, at the mechanism, and downstream from the mechanism. Data from the pressure sensors are transmitted to a microprocessor or computer, and pressure differential detected between the pressure sensors is then used to calculate the backflow. Control signals may then be generated by the microprocessor or computer to shut off valves located in the conduit, upon the occurrence of backflow, or to control flow, total material dispersed, etc. in the conduit. 3 figs.

Ortiz, M.G.

1999-03-23T23:59:59.000Z

253

A Survey of Control Allocation Methods for Ships and Underwater Vehicles  

E-Print Network (OSTI)

for marine vessels can be formulated as optimization problems, where the objective typically is to minimize available degrees of freedom (DOF) in order to minimize power consumption, drag, tear/wear and other costs. For marine vessels in n DOF it is necessary to distribute the generalized control forces to the actuators

Johansen, Tor Arne

254

Error Control of Phase-Function Shooting Methods for Sturm-Liouville Problems  

Science Journals Connector (OSTI)

......be of use in quantum theory applications, but it...ALE-based control. The basic formulae (2.11) and...potentials, Arkiv for Fysik 32 No 4, 79-97. NAG...mid-point of J), the Sturm theory of second-order linear...PRYCE Again by Sturm theory, and the hypothesis -M2......

J. D. PRYCE

1986-01-01T23:59:59.000Z

255

Method for Weight Control Engineering Management to Evaluate Single Engine Aircraft Weighing Activities  

E-Print Network (OSTI)

There is no greater task for a Weight Control Engineer than determining an aircraft’s weight and center of gravity (CG). Although the concept of balance or CG is easy to grasp, calculating or measuring it for complex objects, such as an aircraft...

Brown, Patrick M.

2007-05-18T23:59:59.000Z

256

Nonlinear Model Based Coordinated Adaptive Robust Control of Electro-hydraulic Robotic Arms via Overparametrizing Method  

E-Print Network (OSTI)

Nonlinear Model Based Coordinated Adaptive Robust Control of Electro-hydraulic Robotic Arms via by electrical motors, hydraulic robot arms have a richer nonlinear dynam- ics and stronger couplings among uncertainties only. Simulation and experimental results on a three degree-of-freedom (DOF) hydraulic robot arm

Yao, Bin

257

PROCESS DESIGN AND CONTROL Efficient Conversion of Thermal Energy into Hydrogen: Comparing Two Methods  

E-Print Network (OSTI)

PROCESS DESIGN AND CONTROL Efficient Conversion of Thermal Energy into Hydrogen: Comparing Two. The performance of energy conversion processes can be evaluated using several types of efficiencies.2 Nowadays Gross,*, Ad Verkooijen, and Signe Kjelstrup, Department of Process & Energy, Delft Uni

Kjelstrup, Signe

258

227-0684-00L Control Methods in Systems Biology March 17, 2011 Lecture 3: Primer in Nonlinear Dynamics  

E-Print Network (OSTI)

227-0684-00L Control Methods in Systems Biology March 17, 2011 Lecture 3: Primer in Nonlinear Here, y corresponds to the output/observations. 3-1 #12;Lecture 3: March 17, 2011 3-2 Figure 3 and t and satisfy the Lipschitz condition f(x, t) - f(y, t) L x - y (3.1) #12;Lecture 3: March 17, 2011 3

Lygeros, John

259

Fish and Vegetables in Foil Ingredients  

E-Print Network (OSTI)

Fish and Vegetables in Foil Ingredients: 1 1/2 pounds fresh or frozen fish fillets or steaks 4 sodium) Directions 1. Rinse fish under cold water and pat dry. Place 4 individual portions of fish on 4 pieces of foil large enough to completely wrap around the fish and vegetables. 2. Diagonally slice

Liskiewicz, Maciej

260

Fruit and Vegetable Safety Challenge Game Directions  

E-Print Network (OSTI)

1 Fruit and Vegetable Safety Challenge Game Directions Equipment needed: 1. Computer, projector (fruits, vegetables, and meat) 6. Cleaning solutions (bleach, soap, water) 7. Stop watch 8. Team prizes How to Start: This game can be used with the "A Healthy Harvest: Safe Handling of Fresh Fruits

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


261

HYDROPONIC VEGETABLE GARDENING Marcy Stanton, Master Gardener  

E-Print Network (OSTI)

and a water source. Lighting: A simple 2-bulb 4-foot fluorescent fixture with standard COOL WHITE bulbs is adequate for most leafy vegetables. Do not buy any of the fancy fluorescent grow bulbs; you are wasting your money on these expensive bulbs. When we set up a fluorescent light system to grow vegetables, what

New Hampshire, University of

262

Hydrologic modeling to screen potential environmental management methods for malaria vector control in Niger  

E-Print Network (OSTI)

This paper describes the first use of Hydrology-Entomology and Malaria Transmission Simulator (HYDREMATS), a physically based distributed hydrology model, to investigate environmental management methods for malaria vector ...

Gianotti, Rebecca Louise

263

DEVELOPMENT OF DECISION MAKING ALGORITHM FOR CONTROL OF SEA CARGO CONTAINERS BY 'TAGGED' NEUTRON METHOD  

SciTech Connect

Nowadays in Russia and abroad there are several groups of scientists, engaged in development of systems based on 'tagged' neutron method (API method) and intended for detection of dangerous materials, including high explosives (HE). Particular attention is paid to possibility of detection of dangerous objects inside a sea cargo container. Energy gamma-spectrum, registered from object under inspection is used for determination of oxygen/carbon and nitrogen/carbon chemical ratios, according to which dangerous object is distinguished from not dangerous one. Material of filled container, however, gives rise to additional effects of rescattering and moderation of 14 MeV primary neutrons of generator, attenuation of secondary gamma-radiation from reactions of inelastic neutron scattering on objects under inspection. These effects lead to distortion of energy gamma-response from examined object and therefore prevent correct recognition of chemical ratios. These difficulties are taken into account in analytical method, presented in the paper. Method has been validated against experimental data, obtained by the system for HE detection in sea cargo, based on API method and developed in VNIIA. Influence of shielding materials on results of HE detection and identification is considered. Wood and iron were used as shielding materials. Results of method application for analysis of experimental data on HE simulator measurement (tetryl, trotyl, hexogen) are presented.

Anan'ev, A. A.; Belichenko, S. G.; Bogolyubov, E. P.; Bochkarev, O. V.; Petrov, E. V.; Polishchuk, A. M.; Udaltsov, A. Yu. [All-Russian Research Institute of Automatics 127055, Moscow, Sushevskaya st., 22 (Russian Federation)

2009-12-02T23:59:59.000Z

264

Device and method for self-verifying temperature measurement and control  

DOE Patents (OSTI)

A measuring instrument includes a first temperature sensor, a second temperature sensor and circuitry. The first and second temperature sensors each generate a signal indicative of the temperature of a medium being detected. The circuitry is configured to activate verification of temperature being sensed with the first sensor. According to one construction, the first temperature sensor comprises at least one thermocouple temperature sensor and the second temperature sensor comprises an optical temperature sensor, each sensor measuring temperature over the same range of temperature, but using a different physical phenomena. Also according to one construction, the circuitry comprises a computer configured to detect failure of one of the thermocouples by comparing temperature of the optical temperature sensor with each of the thermocouple temperature sensors. Even further, an output control signal is generated via a fuzzy inference machine and control apparatus.

Watkins, Arthur D. (Idaho Falls, ID); Cannon, Collins P. (Kearney, MO); Tolle, Charles R. (Idaho Falls, ID)

2002-10-29T23:59:59.000Z

265

Development of a CNC interpolation scheme for CNC controller based on Runge-Kutta method  

Science Journals Connector (OSTI)

The parametric interpolators of modern CNC machines use Taylor's series approximation to generate successive parameter values for the calculation of x, y, z coordinates of tool positions. In order to achieve greater accuracy, higher order derivatives are required at every sampling period which complicates the calculation for contours represented by NURBS curve. In addition, this method calculates the chordal error in a given segment through estimation of the curvature neglecting a fraction of the error. In order to avoid calculating higher derivatives and make the calculations simpler, this paper proposes the classical fourth-order Runge-Kutta (RK) method for the determination of successive tool positions requiring the calculation of the first derivatives only. Furthermore, a method of estimating the chordal error on the average value of parameters at the end points of a given curve segment is proposed here that does not require the calculation of curvature at every segment. Finally, a variable feedrate interpolation scheme is designed combining the RK method of parameter calculation and the proposed method of chordal error calculation. Results show that reduced chordal error and feedrate fluctuations are achievable with the proposed interpolator compared to the conventional interpolator based on Taylor's approximation with higher order terms.

Biddut Bhattacharjee; Abdullahil Azeem; Syed Mithun Ali; Sanjoy Kumar Paul

2012-01-01T23:59:59.000Z

266

Controlled synthesis and characterisation of magnetite nanoparticles obtained by glycothermal method  

Science Journals Connector (OSTI)

Iron oxide nanoparticles as Fe3O4, magnetite, were synthesised by the glycothermal reaction of metal acetylacetonate and 1,4-butanediol at 200-270°C. The products were then calcined at different temperatures in the range of 300-700°C. All products were characterised by TEM and XRD. It is found that the calcination temperature is an important factor and can control the product type. The nanoparticles were successfully synthesised with size ranges about 15 nm.

Fatemeh F. Bamoharram; Kazem Daneshvar Hosseini; Asma Golmakani

2010-01-01T23:59:59.000Z

267

CONNECTICUT VEGETABLE & SMALL FRUIT GROWERS' Thursday, January 15, 2015  

E-Print Network (OSTI)

CONNECTICUT VEGETABLE & SMALL FRUIT GROWERS' CONFERENCE Thursday, January 15, 2015 Maneeley. Connecticut Vegetable & Small Fruit Growers' Conference (We need folks to pre-register so Maneeley's has:______________________________________ ---- Town:______________ State:_____ Zip:____________ ---- Check off: Vegetable grower ___ Fruit grower

Alpay, S. Pamir

268

Method of controlling switching of a multiphase inductor-converter bridge  

DOE Patents (OSTI)

In an inductor-convertor circuit for transferring electrical energy between a storage coil and a load coil using a storage thyristor bridge, a load thyristor bridge, and a set of commutating capacitors, operation is improved by a method of changing the rate of delivery of energy in a given direction. The change in rate corresponds to a predetermined change in phase angle between the load bridge and the storage bridge and comprises changing the phase of the bridge by two steps, each equal to half the predetermined change and occurring 180.degree. apart. The method assures commutation and minimizes imbalances that lead otherwise to overvoltages.

Kustom, Robert L. (Palos Heights, IL); Fuja, Raymond E. (Justice, IL)

1981-01-01T23:59:59.000Z

269

Method for morphological control and encapsulation of materials for electronics and energy applications  

DOE Patents (OSTI)

An electronic device comprises a drawn glass tube having opposing ends, a semiconductive material disposed inside of the drawn glass tube, and a first electrode and a second electrode disposed at the opposing ends of the drawn glass tube. A method of making an electrical device comprises disposing a semiconductive material inside of a glass tube, and drawing the glass tube with the semiconductive material disposed therein to form a drawn glass tube. The method of making an electrical device also comprises disposing a first electrode and a second electrode on the opposing ends of the drawn glass tube to form an electric device.

Ivanov, Ilia N.; Simpson, John T.

2013-06-11T23:59:59.000Z

270

Scanning near-field optical microscopy based on the heterodyne phase-controlled oscillator method  

E-Print Network (OSTI)

obtained for the case of larger vibration amplitudes of the tip. © 2000 American Institute of Physics. S, the particular mechanical properties of such a ``lever'' prevented the broad use of the force-measurement. The idea behind the method is based on the measurement of the damping of the oscillation of the tip subject

Texas at Austin. University of

271

Supply Response and Impact of Government-Supported Crops on the Texas Vegetable Industry  

E-Print Network (OSTI)

Supply functions, elasticity estimates, and nonjointness test results consistently indicated that few commodities compete economically in the production of six major Texas vegetables (cabbage, cantaloupes, carrots, onions, potatoes, and watermelons). Significant bias effects caused by government-supported commodities, fixed inputs, and technological change were observed and measured. Nonnested test results for the hypothesis of sequential decision making by vegetable producers were inconclusive, but they gave greater likelihood support to sequential than to contemporaneous decision making. Many crops are produced under provision of gov-ernment programs intended both to prevent severe drops in prices received by farmers and to limit supplies. Diversion payments, price supports, and acreage restrictions are examples of governmental policies designed to stabilize and control field crop production in the U.S, Vegetable production and marketing, on the other hand, are often subject only to minimum standards implemented by grow-ers ’ associations and shippers to ensure quality of the fresh produce. Their prices are allowed to vary according to market conditions prevailing at the time of harvest. Meanwhile, health-conscious con-sumers are enhancing their diets by expanding con-sumption of vegetables. For example, per capita consumption of fresh vegetables in the U.S. has increased more than a third in less than 15 years, rising from 75 to 102 pounds between 1975 and 1989 (USDA). Texas is a major vegetable producing state. In 1989 it ranked sixth among the 50 states in value of vegetables produced and fourth in value of fresh vegetables produced (USDA). Considerable re-sources are devoted to them, and income generated from vegetable production and associated agribus-iness activities contribute substantially to the eco-

Fermin Ornelas; C. Richard Shumway

272

Method and system for an on-chip AC self-test controller  

DOE Patents (OSTI)

A method and system for performing AC self-test on an integrated circuit that includes a system clock for use during normal operation are provided. The method includes applying a long data capture pulse to a first test register in response to the system clock, applying an at speed data launch pulse to the first test register in response to the system clock, inputting the data from the first register to a logic path in response to applying the at speed data launch pulse to the first test register, applying an at speed data capture pulse to a second test register in response to the system clock, inputting the logic path output to the second test register in response to applying the at speed data capture pulse to the second test register, and applying a long data launch pulse to the second test register in response to the system clock.

Flanagan, John D. (Rhinebeck, NY); Herring, Jay R. (Poughkeepsie, NY); Lo, Tin-Chee (Fishkill, NY)

2008-09-30T23:59:59.000Z

273

Method oil shale pollutant sorption/NO.sub.x reburning multi-pollutant control  

DOE Patents (OSTI)

A method of decreasing pollutants produced in a combustion process. The method comprises combusting coal in a combustion chamber to produce at least one pollutant selected from the group consisting of a nitrogen-containing pollutant, sulfuric acid, sulfur trioxide, carbonyl sulfide, carbon disulfide, chlorine, hydroiodic acid, iodine, hydrofluoric acid, fluorine, hydrobromic acid, bromine, phosphoric acid, phosphorous pentaoxide, elemental mercury, and mercuric chloride. Oil shale particles are introduced into the combustion chamber and are combusted to produce sorbent particulates and a reductant. The at least one pollutant is contacted with at least one of the sorbent particulates and the reductant to decrease an amount of the at least one pollutant in the combustion chamber. The reductant may chemically reduce the at least one pollutant to a benign species. The sorbent particulates may adsorb or absorb the at least one pollutant. A combustion chamber that produces decreased pollutants in a combustion process is also disclosed.

Boardman, Richard D. (Idaho Falls, ID); Carrington, Robert A. (Idaho Falls, ID)

2008-06-10T23:59:59.000Z

274

Systems and methods for controlling energy use in a building management system using energy budgets  

SciTech Connect

Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (HVAC) subsystem of a building are shown and described. A mathematical linear operator is found that transforms the unused or deferred cooling power usage of the HVAC system based on pre-determined temperature settings to a target cooling power usage. The mathematical operator is applied to the temperature settings to create a temperature setpoint trajectory expected to provide the target cooling power usage.

Wenzel, Michael J.

2012-06-17T23:59:59.000Z

275

System and method for controlling hydrogen elimination during carbon nanotube synthesis from hydrocarbons  

DOE Patents (OSTI)

A system and method for producing carbon nanotubes by chemical vapor deposition includes a catalyst support having first and second surfaces. The catalyst support is capable of hydrogen transport from the first to the second surface. A catalyst is provided on the first surface of the catalyst support. The catalyst is selected to catalyze the chemical vapor deposition formation of carbon nanotubes. A fuel source is provided for supplying fuel to the catalyst.

Reilly, Peter T. A. (Knoxville, TN)

2010-03-23T23:59:59.000Z

276

Knowledge system and method for simulating chemical controlled release device performance  

DOE Patents (OSTI)

A knowledge system for simulating the performance of a controlled release device is provided. The system includes an input device through which the user selectively inputs one or more data parameters. The data parameters comprise first parameters including device parameters, media parameters, active chemical parameters and device release rate; and second parameters including the minimum effective inhibition zone of the device and the effective lifetime of the device. The system also includes a judgemental knowledge base which includes logic for 1) determining at least one of the second parameters from the release rate and the first parameters and 2) determining at least one of the first parameters from the other of the first parameters and the second parameters. The system further includes a device for displaying the results of the determinations to the user.

Cowan, Christina E. (Richland, WA); Van Voris, Peter (Richland, WA); Streile, Gary P. (Richland, WA); Cataldo, Dominic A. (Kennewick, WA); Burton, Frederick G. (West Jefferson, OH)

1991-01-01T23:59:59.000Z

277

Method of controlling the side wall thickness of a turbine nozzle segment for improved cooling  

DOE Patents (OSTI)

A gas turbine nozzle segment has outer and inner bands and a vane extending therebetween. Each band has a side wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through apertures of the impingement plate to cool the nozzle wall. The side wall of the band has an inturned flange defining with the nozzle wall an undercut region. The outer surface of the side wall is provided with a step prior to welding the cover to the side wall. A thermal barrier coating is applied in the step and, after the cover is welded to the side wall, the side wall is finally machined to a controlled thickness removing all, some or none of the coating.

Burdgick, Steven Sebastian (Schenectady, NY)

2002-01-01T23:59:59.000Z

278

Controllable synthesis and characterization of cadmium molybdate octahedral nanocrystals by coprecipitation method  

SciTech Connect

Graphical abstract: CdMoO{sub 4} nanocrystals have been synthesized via coprecipitation method by using Cd(Sal){sub 2} and (NH{sub 4}){sub 6}Mo{sub 7}O{sub 24}·4H{sub 2}O as starting materials in water. Effects of temperature, reaction time, solvent, surfactant, cadmium and molybdate sources were investigated to reach optimum condition. It was found that particle size, morphology and phase of the final products could be greatly influenced via these parameters. - Highlights: • A facile coprecipitation method was successfully employed to prepare CdMoO{sub 4}. • The effects of some parameters were investigated. • PEG600, PVP, SDS and CTAB were used as surfactant. • Optimum condition for preparation CdMoO{sub 4} nanocrystals was investigated. - Abstract: Cadmium molybdate (CdMoO{sub 4}) nanocrystals have been successfully synthesized via coprecipitation method by using Cd(Sal){sub 2} (Sal = salicylidene) and (NH{sub 4}){sub 6}Mo{sub 7}O{sub 24}·4H{sub 2}O as starting materials in water as solvent. Effects of temperature, reaction time, solvent, surfactant and cadmium source were investigated to reach optimum condition. It was found that particle size, morphology and phase of the final products could be greatly influenced via these parameters. The products were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, photoluminescence (PL) spectroscopy, energy dispersive X-ray microanalysis (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM)

Shahri, Zahra [Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P.O. Box 87317-51167, Islamic Republic of Iran (Iran, Islamic Republic of); Sobhani, Azam [Department of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 87317-51167, Islamic Republic of Iran (Iran, Islamic Republic of); Salavati-Niasari, Masoud, E-mail: salavati@kashanu.ac.ir [Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P.O. Box 87317-51167, Islamic Republic of Iran (Iran, Islamic Republic of)

2013-10-15T23:59:59.000Z

279

Method and apparatus for controlling the flow rate of mercury in a flow system  

DOE Patents (OSTI)

A method for increasing the mercury flow rate to a photochemical mercury enrichment utilizing an entrainment system comprises the steps of passing a carrier gas over a pool of mercury maintained at a first temperature T1, wherein the carrier gas entrains mercury vapor; passing said mercury vapor entrained carrier gas to a second temperature zone T2 having temperature less than T1 to condense said entrained mercury vapor, thereby producing a saturated Hg condition in the carrier gas; and passing said saturated Hg carrier gas to said photochemical enrichment reactor.

Grossman, Mark W. (Belmont, MA); Speer, Richard (Reading, MA)

1991-01-01T23:59:59.000Z

280

Local Incentive-Based Policy for Vegetable-Agroforestry: a  

Open Energy Info (EERE)

Local Incentive-Based Policy for Vegetable-Agroforestry: a Local Incentive-Based Policy for Vegetable-Agroforestry: a locally-appropriate adaptation and mitigation action (LAAMA) to climate change Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Local Incentive-Based Policy for Vegetable-Agroforestry: a locally-appropriate adaptation and mitigation action (LAAMA) to climate change Agency/Company /Organization: World Agroforestry Centre Sector: Land Focus Area: Agriculture, Forestry Topics: Adaptation, Background analysis, Policies/deployment programs Resource Type: Guide/manual, Lessons learned/best practices Website: www.worldagroforestrycentre.org/sea/Publications/files/policybrief/PB0 Country: Philippines South-Eastern Asia Coordinates: 12.879721°, 121.774017° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":12.879721,"lon":121.774017,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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


281

Vegetation Response to CO2 and Climate  

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

Vegetation Response to CO2 and Climate Vegetation Response to CO2 and Climate Area and Carbon Content of Sphagnum Since Last Glacial Maximum (2002) TDE Model Intercomparison Project Data Archive Presentations and abstracts from the recent DOE Terrestrial Science Team Meeting (Argonne National Laboratory, October 29-31, 2001) FACE (Free-Air CO2 Enrichment) Walker Branch Throughfall Displacement Experiment Data Report: Site Characterization, System Performance, Weather, Species Composition, and Growth (2001), NDP-078A | PDF Bibliography on CO2 Effects on Vegetation and Ecosystems: 1990-1999 Literature (2000), CDIAC-129 Direct effects of atmospheric CO2 enrichment on plants and ecosystems: An updated bibliographic data base (1994), CDIAC-70 A Database of Herbaceous Vegetation Responses to Elevated

282

3, 10211043, 2006 Effects of vegetation  

E-Print Network (OSTI)

patterns on yields of the surface and subsurface waters in the Heishui Alpine Valley in west China Y. Liu 1 between different vegetation types and water yields were investi- gated in the Heishui Valley of the upper

Boyer, Edmond

283

CLIMATE CHANGE IMPACTS ON CALIFORNIA VEGETATION  

E-Print Network (OSTI)

CLIMATE CHANGE IMPACTS ON CALIFORNIA VEGETATION: PHYSIOLOGY, LIFE HISTORY, AND ECOSYSTEM CHANGE A White Paper from the California Energy Commission's California Climate Change Center of the uncertainties with climate change effects on terrestrial ecosystems is understanding where transitions

284

The limited growth of vegetated shear layers  

E-Print Network (OSTI)

In contrast to free shear layers, which grow continuously downstream, shear layers generated by submerged vegetation grow only to a finite thickness. Because these shear layers are characterized by coherent vortex structures ...

Ghisalberti, M.

285

Safe Storage of Fresh Fruits and Vegetables  

E-Print Network (OSTI)

Proper storage of fresh fruits and vegetables can help consumers avoid foodborne illness. This publication explains how to safely store apples, bananas, berries, beets, broccoli, carrots, corn, grapes, herbs, lettuce and greens, melons, nectarines...

Scott, Amanda

2008-09-05T23:59:59.000Z

286

Membrane degumming of crude vegetable oil  

E-Print Network (OSTI)

Crude vegetable oils contain various minor substances like phospholipids, coloring pigments, and free fatty acids (FFA) that may affect quality of the oil. Reduction of energy costs and waste disposal are major concerns for many oil refiners who...

Lin, Lan

2012-06-07T23:59:59.000Z

287

Using Unmanned Helicopters to Assess Vegetation Cover in Sagebrush Steppe Ecosystems  

SciTech Connect

Evaluating vegetation cover is an important factor in understanding the sustainability of many ecosystems. Methods that have sufficient accuracy and improved cost efficiency could dramatically alter how biotic resources are monitored on both public and private lands. This will be of interest to land managers because there are rarely enough resource specialists or funds available for comprehensive ground evaluations. In this project, unmanned helicopters were used to collect still-frame imagery to assess vegetation cover during May, June, and July in 2005. The images were used to estimate percent cover for six vegetative cover classes (shrub, dead shrub, grass, forbs, litter, and bare ground). The field plots were located on the INL site west of Idaho Falls, Idaho. Ocular assessments of digital imagery were performed using a software program called SamplePoint, and the results were compared against field measurements collected using a point-frame method to assess accuracy. The helicopter imagery evaluation showed a high degree of agreement with field cover class values for litter, bare ground, and grass, and reasonable agreement for dead shrubs. Shrub cover was often overestimated and forbs were generally underestimated. The helicopter method took 45% less time than the field method to set plots and collect and analyze data. This study demonstrates that UAV technology provides a viable method for monitoring vegetative cover on rangelands in less time and with lower costs. Tradeoffs between cost and accuracy are critical management decisions that are important when managing vegetative conditions across vast sagebrush ecosystems throughout the Intermountain West.

Robert P. Breckenridge; Maxine Dakins; Stephen Bunting; Jerry Harbour; Randy Lee

2012-07-01T23:59:59.000Z

288

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-28)(9/5/01)  

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

September 5, 2001 September 5, 2001 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-28) James Jellison - TFO/Olympia Natural Resource Specialist Proposed Action: Vegetation Management along the Port Angeles - Sappo No.1 Transmission Line ROW, from struture 1/1 to structure 42/10. Location: The ROW is located in Clallum County, WA, all in the Olympia Region. Proposed by: Bonneville Power Administration (BPA), Olympia Region. Description of the Proposed Action: BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission line. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is

289

(DOE/EIS-0285-126): Supplement Analysis for the Transmission System Vegetation Management Program 2/19/03  

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

KEP-4 KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-126- Alvey Fairview Benjamin Tilley - TFE/Alvey Proposed Action: Vegetation Management for the Alvey Fairview 230kV transmission line from structure 1/1 through structure 64/7. Location: The project is located in the BPA Eugene Region in Coos, Douglas, and Lane Counties, Oregon. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way, along access roads and around tower structures along the subject transmission line corridor that may impede the operation and maintenance of the identified transmission lines. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently

290

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-22)(8/17/01)  

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

August 17, 2001 August 17, 2001 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-22) Donald F. Atkinson - TFN/Snohomish Natural Resource Specialist Proposed Action: Vegetation Management along the Chief Joseph - Snohomish No.3 and 4 Transmission Line ROW. From STR 94/1 to STR 113/1 Location: The ROW is located in King and Snohomish Counties, WA, in the Snohomish Region. Proposed by: Bonneville Power Administration (BPA). Description of the Proposed Action: BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission line. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is

291

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-26)(9/11/01)  

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

11, 2001 11, 2001 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-26) Ben Tilley - TFE/Alvey Natural Resource Specialist Proposed Action: Vegetation Management on Reedsport-Fairview #1 Transmission Line Structure 1/5 to 39/4. Location: All ROW are located in Coos and Douglas Counties, OR, all being in the Eugene Region. Proposed by: Bonneville Power Administration (BPA), Eugene Region. Description of the Proposed Action: BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission line. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently

292

Controlled Synthesis of Polyenes by Catalytic Methods. Progress Report, December 1, 1989 -- November 30, 1992  

DOE R&D Accomplishments (OSTI)

A more direct approach to polyenes by the direct polymerization of acetylenes has been achieved. We were able to show that polymerization of acetylene itself can be controlled with a well- characterized alkylidene catalyst, but only if a base such as quinuclidine is present in order to slow down the rate of propagation relative to initiation. (Quinuclidine may also stabilize vinylalkylidene intermediates formed in the reaction). Unfortunately, living polyenes were no more stable than isolated polyenes, and so this approach had its limitations. Direct polymerization of acetylene by Mo(CH-t-Bu)(NAr)(O-t-Bu){sub 2} was more successful, but inherent polyene instability was still a problem. The most important result of the past grant period is the finding that dipropargyl derivatives (HC=CCH{sub 2}XCH{sub 2}C=CH; X = CH{sub 2}, C(CO{sub 2}R){sub 2}, SiR{sub 2}, etc.), which have been reported to be cyclopolymerized by various classical catalysts by as yet unknown mechanisms, are polymerized by Mo(CH-t-Bu)(NAr)[OCMe(CF{sub 3}){sub 2}]{sub 2} in dimethoxyethane. We speculate that intramolecular formation of a five-membered ring in the product of {alpha} addition is fast enough to yield another terminal alkylidene on the time scale of the polymerization reaction, while a six-membered ring is formed in a reaction involving a more reaction terminal alkylidene. Either intermediate alkylidene, but most likely the terminal alkylidene, could react with additional monomer to lead to growth of a chain having dangling triple bonds that eventually could be employed to form crosslinks.

Schrock, R. R.

1992-00-00T23:59:59.000Z

293

EIS-0285: Transmission System Vegetation Management Program | Department of  

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

February 20, 2003 February 20, 2003 EIS-0285-SA-123: Supplement Analysis Transmission System Vegetation Management Program February 19, 2003 EIS-0285-SA-126: Supplement Analysis Transmission System Vegetation Management Program February 18, 2003 EIS-0285-SA-125: Supplement Analysis Transmission System Vegetation Management Program February 18, 2003 EIS-0285-SA-124: Supplement Analysis Transmission System Vegetation Management Program February 12, 2003 EIS-0285-SA-121: Supplement Analysis Transmission System Vegetation Management Program February 10, 2003 EIS-0285-SA-120: Supplement Analysis Transmission System Vegetation Management Program, Benton County, Washington January 16, 2003 EIS-0285-SA-117: Supplement Analysis Transmission System Vegetation Management Program December 24, 2002

294

EIS-0285: Transmission System Vegetation Management Program | Department of  

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

July 19, 2002 July 19, 2002 EIS-0285-SA-96: Supplement Analysis Transmission System Vegetation Management Program, Snohomish District Substations July 19, 2002 EIS-0285-SA-70: Supplement Analysis Transmission System Vegetation Management Program July 9, 2002 EIS-0285-SA-81: Supplement Analysis Transmission System Vegetation Management Program July 1, 2002 EIS-0285-SA-84: Supplement Analysis Transmission System Vegetation Management Program July 1, 2002 EIS-0285-SA-80: Supplement Analysis Transmission System Vegetation Management Program July 1, 2002 EIS-0285-SA-78: Supplement Analysis Transmission System Vegetation Management Program June 21, 2002 EIS-0285-SA-75: Supplement Analysis Transmission System Vegetation Management Program May 31, 2002 EIS-0285-SA-58: Supplement Analysis

295

IEEE TENCON '93/ BcijnR DEFUZZIF'ICATION METHOD FOR A FASTER AND MORE ACCURATE CONTROL  

E-Print Network (OSTI)

to industrial process control Fuzzy logic controllers are easier to design and so are cheaper to produce.Fuzzy aims to present a comparison between the conventional fuzzy controller and a fuzzy logic controller PM PS ZE PS PM PB Table I. Rule-base CONVENTIONAL FUZZY CONTROL A fuzzy logic based control system

Sanyal, Sugata

296

Using LiDAR and normalized difference vegetation index to remotely determine LAI and percent canopy cover at varying scales  

E-Print Network (OSTI)

: (1) Develop scanning LiDAR and multispectral imagery methods to estimate PCC and LAI over both hardwood and coniferous forests; (2) investigate whether a LiDAR and normalized difference vegetation index (NDVI) data fusion through linear regression...

Griffin, Alicia Marie Rutledge

2009-05-15T23:59:59.000Z

297

Embedded Model Predictive Control on a PLC Using a Primal-Dual First-Order Method for a Subsea Separation Process  

E-Print Network (OSTI)

Embedded Model Predictive Control on a PLC Using a Primal-Dual First-Order Method for a Subsea. Eikrem3 Abstract-- The results of a PLC implementation of embedded Model Predictive Control (MPC to underline its potential. The embedded MPC was implemented on the ABB AC500 PLC, and its performance

Johansen, Tor Arne

298

Discrimination of partial discharge electromagnetic signal in SF{sub 6} gas from external noises using phase gate control method  

SciTech Connect

The authors proposed phase gate control method for distinguishing frequency spectrum of electromagnetic wave caused by partial discharge (PD) in SF{sub 6} gas from external noises. They investigated the dependence of the polarity and phase angle of ac voltage on the electromagnetic wave spectrum. They derived the frequency region where PD spectrum caused by SF{sub 6} gas can be detected under noisy conditions. The authors also related quantitatively the gain of electromagnetic wave spectrum to the maximum PD charge simultaneously occurring in both SF{sub 6} gas and air. On the basis of these results, they determined the minimum detectable PD level in SF{sub 6} gas under noisy conditions as a function of measuring frequency.

Hikita, M.; Hoshino, T.; Kato, T.; Hayakawa, N.; Okubo, H. [Nagoya Univ. (Japan); Ueda, T. [Chubu Electric Power Co., Inc., Nagoya (Japan)

1996-12-31T23:59:59.000Z

299

(DOE/EIS-0285/SA-113-1): Supplement Analysis for the Transmission System Vegetation Management Program Updates 9/27/02 SA-113 12/2/02  

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

12/02/02 12/02/02 REPLY TO ATTN OF: KEC-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program (DOE/EIS-0285/SA-113-1) Updates 9/27/02 SA-113 Bill Erickson, TFP/Walla Walla Natural Resource Specialist Proposed Action: To perform remedial vegetation management for keeping vegetation a safe distance away from electric power facilities and controlling noxious weeds within a section of BPA's Big Eddy-Ostrander Transmission Corridor. During a site review conducted in late fall of 2001, the inspector observed various species of hardwood trees resprouted from stumps. The new vegetative growth encroached on the required "Minimum Safe Distance" between the top of vegetation and the conductor cables. The management action is necessary to reduce the current and potential future hazards that tall- growing vegetation poses to transmission

300

Disease Management for Vegetable Crops Program Leader: Margaret Tuttle McGrath, Associate Professor  

E-Print Network (OSTI)

affecting vegetables grown on Long Island within organic as well as conventional production systems by and genetic control. Examine impact on diseases of practices to improve soil health: annual compost amendments conducted in 2010 included 1) evaluating registered conventional fungicides and experimentals; 2) examining

Lazzaro, Brian

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


301

Impact of vegetation fraction from Indian geostationary satellite on short-range weather forecast  

Science Journals Connector (OSTI)

Indian economy is largely depending upon the agricultural productivity and thus influences the trade among the SAARC countries. High-resolution and good-quality regional weather forecasts are necessary for planners, resource managers, insurers and national agro-advisory services. In this study, high resolution updated land-surface state in terms of vegetation fraction (VF) from operational vegetation index products of Indian geostationary satellite (INSAT 3A) sensor (CCD) was utilized in numerical weather prediction (NWP) model (e.g. WRF) to investigate its impact on short-range weather forecast over the control run. Results showed that the updated vegetation fraction from INSAT 3A CCD improved the low-level 24 h temperature (?18%) and moisture (?10%) forecast in comparison to control run. The 24 h rainfall forecast was also improved (more than 5%) over central and southern India with the use of updated vegetation fraction compared to control experiment. INSAT 3A VF based experiment also showed a net improvement of 27% in surface sensible heat fluxes from WRF in comparison to control experiment when both were compared with area-averaged measurements from Large Aperture Scintillometer (LAS). This triggers the need of more and more use of realistic and updated land surface states through satellite remote sensing data as well as in situ micrometeorological measurements to improve the forecast quality, skill and consistency.

Prashant Kumar; Bimal K. Bhattacharya; P.K. Pal

2013-01-01T23:59:59.000Z

302

Activity of polymerized trichloroacetic acid for highway vegetation control  

E-Print Network (OSTI)

;a Epr Dsa Cspp Sha Cda Cda Dsa Epr Epr Epr TCA + "A" 4 TCA + "A" Pdi Sha Pin Pdi Sha Cda Cda Cda Pdi Cda Sha Cda Cda Cda Dsa Sha Cda Sha Cd. a Cda Cda Epr Cda TCA ~ &rBn 7 TCA + "B" 12 8 TCA + "B" 18 Sha Cda Cspp Dsa Dsa Pdi Dsa... B TCA 5 TCA A TCA. A B TCA B TCA A Cut bac k Emulsion As pha It ic Cement Percent recovery of. sodiu~ TG. , pctymer eel ivates uAn and uBn and polymerized TCa applied tg as '==, tic or ainu ', nt' a f'oil surfaces and subjected to 1n0 P or varying...

Wiedenfeld, R. P

2012-06-07T23:59:59.000Z

303

Preserving Vegetation in Parks and Wilderness  

Science Journals Connector (OSTI)

...recom-mendations for preserving redwood groves along the Eel River...dominated by 1 000-year-old redwood trees, or in an untrammeled...vegetation of the California coastal redwood region in relation to gradients...careful data collection and humble advocacy. Inevitably the chemists...

Edward C. Stone

1965-12-03T23:59:59.000Z

304

Soils and Vegetation of the Congo  

Science Journals Connector (OSTI)

... responsible for the fifth International Congress of Soil Science being held in 1954 in the Congo. There have been numerous publications from this field, and this is one of a ... of a series on natural resources from L'Institut National pour 1'fitude Agronomique du Congo (Carte des Sols et de la Vegetation du ...

1963-09-14T23:59:59.000Z

305

Carbon sequestration in forest vegetation of Beijing at sublot level  

Science Journals Connector (OSTI)

Based on forest inventory data (FID) at sublot level, we estimated the carbon sequestration in forest vegetation of Beijing, China in 2009. In this study, the carbon sequestration in forest vegetation at sublot l...

Yu Xiao; Kai An; Gaodi Xie; Chunxia Lu; Biao Zhang

2011-06-01T23:59:59.000Z

306

Vegetation-climate feedbacks in a greenhouse world  

Science Journals Connector (OSTI)

...atmospheric CO2 concen- trations on climate.Therefore, complete models of climate, atmosphere and vegetation (earth system models) must incorporate all of these processes. This section will consider the future interactions between vegetation...

1998-01-01T23:59:59.000Z

307

Straight Vegetable Oil as a Diesel Fuel? (Fact Sheet)  

SciTech Connect

Discusses the use of straight vegetable oil as a diesel fuel and the use of biodiesel as a transportation fuel.

Not Available

2010-05-01T23:59:59.000Z

308

Chicken Noodle Soup 3 T. canola or vegetable oil  

E-Print Network (OSTI)

. Carefully strain the stock into another pot to remove the vegetable solids and reserve for soup. Cook off

Liu, Taosheng

309

SRS 2010 Vegetation Inventory GeoStatistical Mapping Results for Custom Reaction Intensity and Total Dead Fuels.  

SciTech Connect

This report of the geostatistical analysis results of the fire fuels response variables, custom reaction intensity and total dead fuels is but a part of an SRS 2010 vegetation inventory project. For detailed description of project, theory and background including sample design, methods, and results please refer to USDA Forest Service Savannah River Site internal report “SRS 2010 Vegetation Inventory GeoStatistical Mapping Report”, (Edwards & Parresol 2013).

Edwards, Lloyd A. [Leading Solutions, LLC.; Paresol, Bernard [U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, Portland, OR.

2014-09-01T23:59:59.000Z

310

(DOE/EIS-0285/SA-12): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 5/15/01  

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

2) 2) Donald F. Atkinson - TFN/Snohomish Natural Resource Specialist Proposed Action: Vegetation Management along the Olympia-Grand Coulee No.1 Transmission Line ROW. Location: The ROW is located in Pierce and King Counties, WA, being in the Snohomish Region. Proposed by: Bonneville Power Administration (BPA). Description of the Proposed Action: BPA proposes to clear unwanted vegetation in the rights-of- ways and around tower structures that may impede the operation and maintenance of the subject transmission line. Also, access road clearing will be conducted. All work will be in accordance with the National Electrical Safety Code and BPA standards. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the

311

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-141- SalemAlbany #2)  

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

1- SalemAlbany #2) 1- SalemAlbany #2) Mark Newbill Natural Resource Specialist- TFE/Chemawa Proposed Action: Vegetation Management for the Salem Albany #2 115 kV transmission line from Salem Substation to Albany Substation. Location: The project is located in the BPA Eugene Region, within Marion, Polk, and Benton Counties, Oregon. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way, access roads, switch platforms, microwave beam paths, and around tower structures of the subject transmission line corridor that may impede the operation and maintenance of the identified transmission lines. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the transmission

312

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-140- SalemAlbany1)  

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

0- SalemAlbany1) 0- SalemAlbany1) Mark Newbill Natural Resource Specialist- TFE/Chemawa Proposed Action: Vegetation Management for the Salem Albany #1 115 kV transmission line from Salem Substation to Albany Substation. Location: The project is located in the BPA Eugene Region, Marion, Linn, and Benton County, Oregon. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way, access roads, switch platforms, microwave beam paths, and around tower structures of the subject transmission line corridor that may impede the operation and maintenance of the identified transmission lines. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the transmission

313

(DOE/EIS-0285/SA-10): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 5/15/01  

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

0) 0) Donald F. Atkinson - TFN/Snohomish Natural Resource Specialist Proposed Action: Vegetation Management along the Covington-Duwamish No. 1 ROW from the Covington Substation to tower 10/4. Location: The ROW is located in King County, WA, being in the Snohomish Region. Proposed by: Bonneville Power Administration (BPA). Description of the Proposed Action: BPA proposes to clear unwanted vegetation in the rights-of- ways and around tower structures that may impede the operation and maintenance of the subject transmission line. All work will be in accordance with the National Electrical Safety Code and BPA standards. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the transmission line. BPA's overall goal is to

314

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

315

?Aceite Vegetal Puro Como Combustible Diesel? (Straight Vegetable Oil as a Diesel Fuel? Spanish Version) (Fact Sheet)  

SciTech Connect

Discusses the use of straight vegetable oil as a diesel fuel and the use of biodiesel as a transportation fuel.

Not Available

2010-06-01T23:59:59.000Z

316

Calibration method of liquid zone controller using the ex-core detector signal of CANDU 6 reactor  

Science Journals Connector (OSTI)

The Phase-B test (low-power reactor physics test) is one of the commissioning tests for Canada Deuterium Uranium (CANDU) reactors that ensures the safe and reliable operation of the core during the design lifetime. The Phase-B test, which includes the approach to the first criticality at low reactor powers, is performed to verify the feasibility of the reactor’s physics design and to ensure the integrity of the control and protection facilities. The commissioning testing of pressurized heavy water moderated reactors (PHWRs) is usually performed only once (at the initial commissioning after construction). The large-scale facilities of the Wolsong nuclear power plant (NPP) Unit 1 have been gradually improved since May 2009 to extend its lifetime. The refurbishment was completed in April 2011 – then this NPP has been in operation again. We discusses the new methodology and measurement system that uses an ex-core detector signal for liquid zone controller (LZC) calibration of the Phase-B test instead of conventional methods. The inverse kinetic equation in the reactivity calculator is modified to treat the 17 delayed neutron groups including 11 photo-neutron fractions. The signal acquisition resolution of the reactivity calculator was enhanced and installed reactivity calculating module by each channel. The ex-core detector was confirmed to be applicable to a large reactor core, such as the CANDU 6 by comparison with the in-core flux detector signal. A preliminary test was performed in Wolsong NPP Unit 2 to verify the robustness of the reactivity calculator. This test convincingly demonstrated that the reactivity calculator works well. Commissioning testing of Wolsong NPP Unit 1was performed after successful refurbishment in June 2011. The LZC calibration test was completed successfully, and the requirement of the test was satisfied. The test difference was biased by approximately ?6% between 20% and 70% of the liquid zone level. Moreover, the test was completed within 4 h compared with about 48 h required for Wolsong NPP Units 2, 3, and 4.

D.H. Park; E.K. Lee; H.C. Shin; S.M. Bae; S.Y. Hong

2013-01-01T23:59:59.000Z

317

Detecting vegetation-precipitation feedbacks in mid-Holocene North Africa from two climate models  

SciTech Connect

Using two climate-vegetation model simulations from the Fast Ocean Atmosphere Model (FOAM) and the Community Climate System Model (CCSM, version 2), we investigate vegetation-precipitation feedbacks across North Africa during the mid-Holocene. From mid-Holocene snapshot runs of FOAM and CCSM2, we detect a negative feedback at the annual timescale with our statistical analysis. Using the Monte- Carlo bootstrap method, the annual negative feedback is further confirmed to be significant in both simulations. Additional analysis shows that this negative interaction is partially caused by the competition between evaporation and transpiration in North African grasslands. Furthermore, we find the feedbacks decrease with increasing timescales, and change signs from positive to negative at increasing timescales in FOAM. The proposed mechanism for this sign switch is associated with the different persistent timescales of upper and lower soil water contents, and their interactions with vegetation and atmospheric precipitation.

Wang, Yi; Notaro, Michael; Liu, Zhengyu; Gallimore, Robert; Levis, Samuel; Kutzbach, John E.

2008-03-31T23:59:59.000Z

318

Vegetation survey of PEN Branch wetlands  

SciTech Connect

A survey was conducted of vegetation along Pen Branch Creek at Savannah River Site (SRS) in support of K-Reactor restart. Plants were identified to species by overstory, understory, shrub, and groundcover strata. Abundance was also characterized and richness and diversity calculated. Based on woody species basal area, the Pen Branch delta was the most impacted, followed by the sections between the reactor and the delta. Species richness for shrub and groundcover strata were also lowest in the delta. No endangered plant species were found. Three upland pine areas were also sampled. In support of K Reactor restart, this report summarizes a study of the wetland vegetation along Pen Branch. Reactor effluent enters Indian Grove Branch and then flows into Pen Branch and the Pen Branch Delta.

Not Available

1991-01-01T23:59:59.000Z

319

Development and Verification for the Control Method Using Surplus Pressure of Primary Pumps in Chiller Plant Systems for Air Conditioning which Adopts Primary/Secondary Piping Systems PPT  

E-Print Network (OSTI)

(chiller side) and secondary flow loop (load side). It is a huge energy loss, because the primary pumps use their head to lead much flow to the decoupler. Therefore, we have developed new control method using surplus pressure of the primary pump to reduce...

Matsushita, N.; Fujimura, M.; Sumiyoshi, D.; Akashi, Y.

2012-01-01T23:59:59.000Z

320

Vegetation Description, Rare Plant Inventory, and Vegetation Monitoring for Craig Mountain, Idaho.  

SciTech Connect

The Craig Mountain Wildlife Mitigation Area was purchased by Bonneville Power Administration (BPA) as partial mitigation for wildlife losses incurred with the inundation of Dworshak Reservoir on the North Fork Clearwater River. Upon completion of the National Environmental Protection Act (NEPA) process, it is proposed that title to mitigation lands will be given to the Idaho Department of Fish and Game (IDFG). Craig Mountain is located at the northern end of the Hells Canyon Ecosystem. It encompasses the plateau and steep canyon slopes extending from the confluence of the Snake and Salmon rivers, northward to near Waha, south of Lewiston, Idaho. The forested summit of Craig Mountain is characterized by gently rolling terrain. The highlands dramatically break into the canyons of the Snake and Salmon rivers at approximately the 4,700 foot contour. The highly dissected canyons are dominated by grassland slopes containing a mosaic of shrubfield, riparian, and woodland habitats. During the 1993 and 1994 field seasons, wildlife, habitat/vegetation, timber, and other resources were systematically inventoried at Craig Mountain to provide Fish and Game managers with information needed to draft an ecologically-based management plan. The results of the habitat/vegetation portion of the inventory are contained in this report. The responsibilities for the Craig Mountain project included: (1) vegetation data collection, and vegetation classification, to help produce a GIS-generated Craig Mountain vegetation map, (2) to determine the distribution and abundance of rare plants populations and make recommendations concerning their management, and (3) to establish a vegetation monitoring program to evaluate the effects of Fish and Game management actions, and to assess progress towards meeting habitat mitigation goals.

Mancuso, Michael; Moseley, Robert

1994-12-01T23:59:59.000Z

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


321

Contingent Valuation of renewable energy innovations: vegetal biomass in Italy  

Science Journals Connector (OSTI)

Warming-up of the planet and scarcity of conventional energy resources has led to aim of reducing the consumption of fossil fuels and the development of innovative renewable technologies for energy production. However, innovations and investments in renewable energy can encounter resistance of local communities. This makes planning for the development of Renewable Energy Source-based power plants often very difficult. Against this background, we investigate the level of social consensus on and support of the development of an energy plant based on the use of vegetal biomass in Central Sardinia, Italy. The method adopted is Contingent Valuation. Estimates of ex-ante household Willingness To Pay are implemented, as they are important indicators of the social endorsement for the project development. Implications concerning consensus/disagreement on innovative technologies for sustainable energy production are discussed as perspectives of future research.

Andrea De Montis; Corrado Zoppi

2009-01-01T23:59:59.000Z

322

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-06)  

SciTech Connect

BPA proposes to apply selected herbicides to control annual weeds that are competing with native grasses that were seeded two years ago. Herbicides will also be applied at the base of the existing wooden transmission line poles located in the pasture area. BPA would conduct the vegetation control with the goal of promoting native grass growth and to provide fire protection for the wooden transmission line poles. The pasture area is, for the most part, flat with elevation increasing towards the northwest corner. Slopes are not steep in that area. This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision (ROD).

N /A

2001-04-13T23:59:59.000Z

323

Fault-tolerant control for current sensors of doubly fed induction generators based on an improved fault detection method  

Science Journals Connector (OSTI)

Abstract Fault-tolerant control of current sensors is studied in this paper to improve the reliability of a doubly fed induction generator (DFIG). A fault-tolerant control system of current sensors is presented for the DFIG, which consists of a new current observer and an improved current sensor fault detection algorithm. The current observer is constructed by using only voltage signals as inputs. The fault detection algorithm is based on the current observer, in which an adaptive threshold and different fault duration times are considered. The performance of the proposed observer, improved fault detection algorithm, and fault-tolerant control system are investigated by simulation. The results indicate that the outputs of the observer and the sensor are highly coherent. The fault detection algorithm can efficiently detect both soft and hard faults in current sensors, and the fault-tolerant control system can effectively tolerate both types of faults.

H. Li; C. Yang; Y.G. Hu; B. Zhao; M. Zhao; Z. Chen

2014-01-01T23:59:59.000Z

324

INTEGRATED PLANT RECORD (IPR) VEGETATION ANALYSIS APPLIED TO MODERN VEGETATION IN SOUTH CHINA AND JAPAN  

Science Journals Connector (OSTI)

...microclimates are developed due to foehn wind and other factors causing strong vegetational...near Longqi Mountain and from a local station at 1000-m (He et al...and 6); however, we assume that local variability in humidity or variable...

VASILIS TEODORIDIS; JOHANNA KOVAR-EDER; PETR MAZOUCH

325

Applied Vegetation Science 15 (2012) 161165 Species introduction a major topic in vegetation  

E-Print Network (OSTI)

and ecosystems. Despite an enormous increase in ecological knowledge during the past 20 yr, restoration projects) and Knowledge and Management of Aquatic Ecosystems (five papers). Limiting factor and starting conditions in vegetation restoration Norbert Ho¨ lzel, Elise Buisson & Thierry Dutoit Ho¨ lzel, N. (corresponding author

Naud Frédéric

326

Local Incentive-Based Policy for Vegetable-Agroforestry: alocally...  

Open Energy Info (EERE)

Vegetable-Agroforestry: a locally-appropriate adaptation and mitigation action (LAAMA) to climate change Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Local...

327

The effects of elephant and mesoherbivores on woody vegetation.  

E-Print Network (OSTI)

??Herbivores are important drivers and have a longstanding history in shaping our terrestrial environments. However, during the past decades, changes in woody vegetation in savanna… (more)

Lagendijk, Daisy Diana Georgette.

2011-01-01T23:59:59.000Z

328

Application methods and evaluations of ultra-low-volume sprays for controlling the bollworm, tobacco budworm and boll weevil  

E-Print Network (OSTI)

, than dusts for control of insect paste of cotton (Paranoia et xd, lgh6x Beau end gainss, 1950). These sprays could be applied at much lower gaLLoneges per acre than the inorgsxd. c asd botanxd. cal iusecticides. Pcntou (1950) applied toxxaphene...

Nemec, Stanley Joseph

2012-06-07T23:59:59.000Z

329

AVESTAR® - Control  

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

Control Control AVESTAR control system efforts are focused on development of computational approaches for simulation and advanced controls for energy systems. Power generation technologies are growing more sophisticated and require control strategies and systems to be updated to allow plant owners to take full advantage of their increased capabilities. A well designed control system can provide the ability to hit and maintain setpoints without oscillation for optimum power plant operation. Implementation of complex control systems developed through advanced computational approaches will increase efficiency and reduce emissions. The AVESTAR team is focusing on the following three areas of process control research: 1) Plant-wide control system design, 2) Advanced regulatory control, and 3) Advanced process control. Process control models, methods, and tools are developed and applied to a wide variety of energy systems ranging from smart plant to smart grid.

330

Oak Woodland Vegetation Dynamics: A State and Transition Approach1  

E-Print Network (OSTI)

into a format that is sensible and accessible to natural resource managers. State and transition models have93 Oak Woodland Vegetation Dynamics: A State and Transition Approach1 Melvin R. George2 and Maximo and transition format. Keywords: Oak-woodlands, state and transition models, succession, vegetation dynamics

Standiford, Richard B.

331

FRUIT & VEGETABLE GROWERS MANUAL FOR THE BEGINNING GROWER  

E-Print Network (OSTI)

MINNESOTA FRUIT & VEGETABLE GROWERS MANUAL FOR THE BEGINNING GROWER Developed by the University & Outreach Assistance Partnership Program through a partnership agreement with the Minnesota Fruit before I harvest my produce? 135 3. When should I harvest my fruits and vegetables? 136 4. How should I

Amin, S. Massoud

332

ASSISTANT PROFESSOR Sustainable Vegetable Production and Nutrition Systems  

E-Print Network (OSTI)

management that builds collaboratively on MSU's strengths in vegetable production and sustainable croppingASSISTANT PROFESSOR Sustainable Vegetable Production and Nutrition Systems The Department of Horticulture (http://www.hrt.msu.edu) in the College of Agriculture and Natural Resources at Michigan State

Isaacs, Rufus

333

Soil and Vegetation Maps of the Belgian Congo  

Science Journals Connector (OSTI)

... fascicles containing land-usage maps published by the Institut National pour l'Etude Agronomique du Congo Beige "Carte des Sols et de la Vegetation du ... Beige "Carte des Sols et de la Vegetation du Congo Beige et du Ruanda-TJrundi" (Brussels, 1954). Each fascicle contains a soil ...

1955-02-05T23:59:59.000Z

334

Stand establishment: Researching operational vegetation management scenarios designed to  

E-Print Network (OSTI)

vegetation management. Promote reforestation success such that survival, wood-crop biomass and growth of young plantations from seedling establishment through crown closure with an emphasis on operational five years of plantation establishment Summit Sweet Home Vegetation Management Principle #3 All plants

335

Vegetation-climate feedbacks in a greenhouse world  

Science Journals Connector (OSTI)

...increases in vegetation leaf area index (LAI) and vegetation height...through changes in leaf area index (LAI), the net conductance...structure will have continued to completion. The map of this response...and a response of leaf area index (LAI) (from Betts et al...

1998-01-01T23:59:59.000Z

336

Translational genomics of Vegetable Crops Las Vegas, NV  

E-Print Network (OSTI)

Translational genomics of Vegetable Crops Las Vegas, NV July 21, 2005 David Francis and Allen Van Deynze At the recent ASHS meetings in Las Vegas, a workshop "Translational Genomics of Vegetable Crops interventions" (Minna and Gazdar, 1996). In applied plant science, "translational genomics" implies

Douches, David S.

337

The Texas Two-Step Method: Do-It-Yourself Fire Ant Control for Homes and Neighborhoods (Spanish)  

E-Print Network (OSTI)

. Cuando se aplica debidamente, este m?todo supone un riesgo m?nimo para las personas, las mascotas o el medio ambiente. Que coman cebo El primer paso es aplicar a voleo por todo el patio un cebo para hormigas bravas (un producto que contenga alimento adem.... ?Respete nuestro medio ambiente! ? ?Nunca use gasolina ni ning?n otro producto de petr?leo para el control de las hormigas bravas! Aunque la gasolina mata las hormigas bravas, es sumamente inflamable y peligrosa para usted y el medio ambiente. ? No deje gr...

Drees, Bastiaan M.; Merchant, Michael E.

2002-10-04T23:59:59.000Z

338

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-70)  

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

(8-89) memorandum DATE: 7/19/02 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-70) Bill Erickson - TFP/Walla Walla Natural Resource Specialist TO: Proposed Action: Vegetation Management on sections of the McNary-Ross, McNary-Horse Heaven, Horse Heaven-Harvarlum, Harvarlum-Big Eddy, and Hanford-John Day Transmission lines. The treatment areas are identified in Step 1 of the Planning Steps shown below. The work will involve the control of noxious weeds in the subject rights-of-ways (ROWs). Location: The ROWs are located in Umatilla and Sherman Counties, Oregon and Benton and Klickitat Counties, Washington, all being in the Walla Walla and Redmond Regions.

339

Vegetable and Melons Yearbook Data Tables | Data.gov  

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

Vegetable and Melons Yearbook Data Tables Vegetable and Melons Yearbook Data Tables Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Vegetable and Melons Yearbook Data Tables Dataset Summary Description Production, acreage, value, prices, imports, exports, per capita use, and beginning stocks for major fresh market and processed vegetables, 1970 onward. Also includes data for potatoes, sweet potatoes, dry beans and peas, and fresh and processed mushrooms. Tags {"United States","Economic Research Service",prices,value,imports,exports,"per capita use","beginning stocks",vegetables,"fresh market",processed,potatoes,"sweet potatoes","dry beans",peas,"fresh muschrooms","processed mushrooms",mushrooms}

340

EA-1728: Integrated Vegetation Management on the Hanford Site, Richland,  

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

728: Integrated Vegetation Management on the Hanford Site, 728: Integrated Vegetation Management on the Hanford Site, Richland, Washington EA-1728: Integrated Vegetation Management on the Hanford Site, Richland, Washington Summary This EA evaluates the environmental impacts from vegetation management in the "project area" of the Hanford Site. The project area excludes most of the Hanford Reach National Monument that is managed by the U.S. Fish and Wildlife Service (USFWS) under permit from DOE. Vegetation managment under the EA would be consistent with and complement similar efforts currently being performed by the USFWS on the Monument. Based on the analyses in the EA, DOE determined that the proposed action is not a major federal action that would significantly affect the quality of the human environment within the meaning of NEPA, and that preparation of

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


341

EA-1728: Integrated Vegetation Management on the Hanford Site, Richland,  

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

28: Integrated Vegetation Management on the Hanford Site, 28: Integrated Vegetation Management on the Hanford Site, Richland, Washington EA-1728: Integrated Vegetation Management on the Hanford Site, Richland, Washington Summary This EA evaluates the environmental impacts from vegetation management in the "project area" of the Hanford Site. The project area excludes most of the Hanford Reach National Monument that is managed by the U.S. Fish and Wildlife Service (USFWS) under permit from DOE. Vegetation managment under the EA would be consistent with and complement similar efforts currently being performed by the USFWS on the Monument. Based on the analyses in the EA, DOE determined that the proposed action is not a major federal action that would significantly affect the quality of the human environment within the meaning of NEPA, and that preparation of

342

(DOE/EIS-0285/SA-13): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 6/6/01  

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

3) 3) James Jellison - TFO/Olympia Region - Natural Resource Specialist Bill Erickson - TFP/Walla Walla Region - Natural Resource Specialist Proposed Action: Vegetation Management along the Naselle Tarlett #1 and #2 transmission line Right of Way (ROW). Location: The ROW is located in Pacific County, WA, Olympia Region. Proposed by: Bonneville Power Administration (BPA). Description of the Proposed Action: BPA proposes to clear unwanted vegetation in the rights-of-ways and around tower structures that may impede the operation and maintenance of the subject transmission line. Also, access road clearing will be conducted. All work will be in accordance with the National Electrical Safety Code and BPA standards. BPA plans to conduct vegetation control with the goal of

343

(DOE/EIS-0285/SA-08): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 4/23/01  

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

23, 2001 23, 2001 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS DOE/EIS-0285/SA-08 Don Atkinson - TFN/Snohomish Natural Resource Specialist Proposed Action: Clearing C-trees along the south side of the right-of-way. Location: Raver - Covington Line 1, between towers 6/5 and 7/2. Work will be performed in the State of Washington. Proposed by: BPA Snohomish Region. Analysis: This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision (ROD). Planning Steps 1. Identify facility and the vegetation management need. The project involves controlling all tall growing trees (C-Trees) within the right-of-way. All

344

A method for the frequency control in time-resolved two-dimensional gigahertz surface acoustic wave imaging  

SciTech Connect

We describe an extension of the time-resolved two-dimensional gigahertz surface acoustic wave imaging based on the optical pump-probe technique with periodic light source at a fixed repetition frequency. Usually such imaging measurement may generate and detect acoustic waves with their frequencies only at or near the integer multiples of the repetition frequency. Here we propose a method which utilizes the amplitude modulation of the excitation pulse train to modify the generation frequency free from the mentioned limitation, and allows for the first time the discrimination of the resulted upper- and lower-side-band frequency components in the detection. The validity of the method is demonstrated in a simple measurement on an isotropic glass plate covered by a metal thin film to extract the dispersion curves of the surface acoustic waves.

Kaneko, Shogo; Tomoda, Motonobu; Matsuda, Osamu, E-mail: omatsuda@eng.hokudai.ac.jp [Division of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628 (Japan)] [Division of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628 (Japan)

2014-01-15T23:59:59.000Z

345

A Preliminary Investigation into the Mitigation of Plug-in Hybrid Electric Vehicle Tailpipe Emissions Through Supervisory Control Methods Part 2: Experimental Evaluation of Emissions Reduction Methodologies  

SciTech Connect

Plug-in hybrid electric vehicle (PHEV) technologies have the potential for considerable petroleum consumption reductions, possibly at the expense of increased tailpipe emissions due to multiple 'cold' start events and improper use of the engine for PHEV specific operation. PHEVs operate predominantly as electric vehicles (EVs) with intermittent assist from the engine during high power demands. As a consequence, the engine can be subjected to multiple cold start events. These cold start events may have a significant impact on the tailpipe emissions due to degraded catalyst performance and starting the engine under less than ideal conditions. On current hybrid electric vehicles (HEVs), the first cold start of the engine dictates whether or not the vehicle will pass federal emissions tests. PHEV operation compounds this problem due to infrequent, multiple engine cold starts. A continuation of previous analytical work, this research, experimentally verifies a vehicle supervisory control system for a pre-transmission parallel PHEV powertrain architecture. Energy management strategies are evaluated and implemented in a virtual environment for preliminary assessment of petroleum displacement benefits and rudimentary drivability issues. This baseline vehicle supervisory control strategy, developed as a result of this assessment, is implemented and tested on actual hardware in a controlled laboratory environment over a baseline test cycle. Engine cold start events are aggressively addressed in the development of this control system, which leads to enhanced pre-warming and energy-based engine warming algorithms that provide substantial reductions in tailpipe emissions over the baseline supervisory control strategy. The flexibility of the PHEV powertrain allows for decreased emissions during any engine starting event through powertrain 'torque shaping' algorithms. The results of the research show that PHEVs do have the potential for substantial reductions in fuel consumption. Tailpipe emissions from a PHEV test platform have been reduced to acceptable levels through the development and refinement of vehicle supervisory control methods only. Impacts on fuel consumption were minimal for the emissions reduction techniques implemented.

Smith, David E [ORNL] [ORNL; Lohse-Busch, Henning [Argonne National Laboratory (ANL)] [Argonne National Laboratory (ANL); Irick, David Kim [ORNL] [ORNL

2010-01-01T23:59:59.000Z

346

CHANGES IN RIPARIAN VEGETATION IN THE SOUTHWESTERN UNITED STATES: Floods and Riparian Vegetation on the San Juan River, Southeastern Utah  

E-Print Network (OSTI)

CHANGES IN RIPARIAN VEGETATION IN THE SOUTHWESTERN UNITED STATES: Floods and Riparian Vegetation (Surveyed Water Surface Elevation) 113 m3/s (Calculated Water Surface Elevation) 4,200 m3 /s (1911 Flood) 1,980 m3 /s (Peak Flood of Gaging Record) 900 m3/s 1911 Slackwater Deposits Driftwood Other Historic

347

Interactions among flow, sediment deposition and aquatic vegetation in a channel  

E-Print Network (OSTI)

Aquatic vegetation is commonly present in rivers in many forms. This thesis consists of two studies, which examine the flow structure around a patch of emergent, rigid vegetation in a laboratory channel. The vegetation ...

Zong, Lijun

2011-01-01T23:59:59.000Z

348

Comparison of Unmanned Aerial Vehicle Platforms for Assessing Vegetation Cover in Sagebrush Steppe Ecosystems  

SciTech Connect

In this study, the use of unmanned aerial vehicles (UAVs) as a quick and safe method for monitoring biotic resources was evaluated. Vegetation cover and the amount of bare ground are important factors in understanding the sustainability of many ecosystems and assessment of rangeland health. Methods that improve speed and cost efficiency could greatly improve how biotic resources are monitored on western lands. Sagebrush steppe ecosystems provide important habitat for a variety of species (including sage grouse and pygmy rabbit). Improved methods are needed to support monitoring these habitats because there are not enough resource specialists or funds available for comprehensive ground evaluations. In this project, two UAV platforms, fixed wing and helicopter, were used to collect still-frame imagery to assess vegetation cover in sagebrush steppe ecosystems. This paper discusses the process for collecting and analyzing imagery from the UAVs to (1) estimate percent cover for six different vegetation types (shrub, dead shrub, grass, forb, litter, and bare ground) and (2) locate sage grouse using representative decoys. The field plots were located on the Idaho National Engineering (INL) site west of Idaho Falls, Idaho, in areas with varying amounts and types of vegetation cover. A software program called SamplePoint was used along with visual inspection to evaluate percent cover for the six cover types. Results were compared against standard field measurements to assess accuracy. The comparison of fixed-wing and helicopter UAV technology against field estimates shows good agreement for the measurement of bare ground. This study shows that if a high degree of detail and data accuracy is desired, then a helicopter UAV may be a good platform to use. If the data collection objective is to assess broad-scale landscape level changes, then the collection of imagery with a fixed-wing system is probably more appropriate.

Robert P. Breckenridge; Maxine Dakins; Stephen Bunting; Jerry Harbour; Sera White

2011-09-01T23:59:59.000Z

349

Electrical system for pulse-width modulated control of a power inverter using phase-shifted carrier signals and related operating methods  

DOE Patents (OSTI)

Systems and methods are provided for pulse-width modulated control of power inverter using phase-shifted carrier signals. An electrical system comprises an energy source and a motor. The motor has a first set of windings and a second set of windings, which are electrically isolated from each other. An inverter module is coupled between the energy source and the motor and comprises a first set of phase legs coupled to the first set of windings and a second set of phase legs coupled to the second set of windings. A controller is coupled to the inverter module and is configured to achieve a desired power flow between the energy source and the motor by modulating the first set of phase legs using a first carrier signal and modulating the second set of phase legs using a second carrier signal. The second carrier signal is phase-shifted relative to the first carrier signal.

Welchko, Brian A. (Torrance, CA)

2012-02-14T23:59:59.000Z

350

DOE/EIS-0285-SA-137: Supplement Analysis for the Transmission System Vegetation Management Program FEIS - Chemawa-Salem 1&2 (4/1/03)  

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

7- Chemawa-Salem1&2) 7- Chemawa-Salem1&2) Mark Newbill Natural Resource Specialist- TFE/Chemawa Proposed Action: Vegetation Management for the Chemawa-Salem #1 115 kV and #2 230 kV transmission lines from Chemawa Substation to Salem Substation. Location: The project is located in the BPA Eugene Region, Marion County, Oregon. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way, access roads, switch platforms, and around tower structures of the subject transmission line corridor that may impede the operation and maintenance of the identified transmission lines. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that is currently or will soon be a hazard to the transmission line. BPA's overall goal is to have low-

351

DOE/EIS-0285-SA-136: Supplement Analysis for the Transmission System Vegetation Management Program FEIS - Oregon City-Chemawal 1&2 (4/1/03)  

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

6- Oregon City-Chemawa1&2) 6- Oregon City-Chemawa1&2) Mark Newbill Natural Resource Specialist- TFE/Chemawa Proposed Action: Vegetation Management for the Oregon City-Chemawa #1 and #2 115 kV transmission lines from Oregon City Substation to Chemawa Substation. Location: The project is located in the BPA Eugene Region, Washington and Marion Counties, Oregon. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way, access roads, switch platforms, and around tower structures of the subject transmission line corridor that may impede the operation and maintenance of the identified transmission lines. BPA plans to conduct vegetation control with the goal of removing tall growing vegetation that

352

Electric resistance monitoring as a method for controlling shape memory alloy characteristics during shape-setting treatments in the furnace  

Science Journals Connector (OSTI)

Abstract This paper proposes a method, based on electric resistance, for monitoring online the shape-setting of NiTi shape memory alloys during thermal treatments in the furnace. The experimental part includes straight-annealing experiments of 1 mm Ni-rich NiTi wires with different cold-working degrees (0%, 25%, 30% and - 40% CW series) or at various ageing temperatures (708 K, 748 K, 808 K, 853 K, and 893 K – T series). Furthermore shape-setting experiments of ? springs at 708 K are reported. A test current was injected into each specimen during ageing and the resulting tension was measured continuously over a set length of material, initially for 1800 s. The resulting curves were repeatable and showed an initial drop in voltage, followed by a definite rise, a plateau and a long slow decrease. These epochs are connected to critical latencies that were used to set the durations of subsequent shape-setting experiments of separate samples in the CW and T series. Mechanical tensile tests, DSC, XRD measurements and FEG-SEM analyses were carried out on all specimens. Correlations were established between electric resistance curve latencies, mechanical performance and microstructural evolution in the material. In particular, the point at the end of the plateau region appears to mark optimal pseudoelastic behaviour. This method may improve the efficiency of parameter optimisation in shape memory alloys processing.

Simone Pittaccio; Lorenzo Garavaglia

2014-01-01T23:59:59.000Z

353

Method of controlling the mercury vapor pressure in a photo-chemical lamp or vapor filter used for Hg.sup.196 enrichment  

DOE Patents (OSTI)

The present invention is directed to a method of eliminating the cold spot zones presently used on Hg.sup.196 isotope separation lamps and filters by the use of a mercury amalgams, preferably mercury - indium amalgams. The use of an amalgam affords optimization of the mercury density in the lamp and filter of a mercury enrichment reactor, particularly multilamp enrichment reactors. Moreover, the use of an amalgam in such lamps and/or filters affords the ability to control the spectral line width of radiation emitted from lamps, a requirement for mercury enrichment.

Grossman, Mark W. (Belmont, MA)

1993-01-01T23:59:59.000Z

354

Method of controlling the mercury vapor pressure in a photo-chemical lamp or vapor filter used for Hg[sup 196] enrichment  

DOE Patents (OSTI)

The present invention is directed to a method of eliminating the cold spot zones presently used on Hg[sup 196] isotope separation lamps and filters by the use of a mercury amalgams, preferably mercury - indium amalgams. The use of an amalgam affords optimization of the mercury density in the lamp and filter of a mercury enrichment reactor, particularly multilamp enrichment reactors. Moreover, the use of an amalgam in such lamps and/or filters affords the ability to control the spectral line width of radiation emitted from lamps, a requirement for mercury enrichment.

Grossman, M.W.

1993-02-16T23:59:59.000Z

355

fruits and vegetables. Beyond tasting and learning about the many varieties of tomatoes, visitors are also  

E-Print Network (OSTI)

fruits and vegetables. Beyond tasting and learning about the many varieties of tomatoes, visitors and other fruit, vegetable, and herb variety research conducted by Rutgers New Jersey Agricultural

356

E-Print Network 3.0 - amazonian vegetation coupled Sample Search...  

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

in Amazonia L. R. Hutyra,1,2 Summary: and resilience of Amazonian vegetation to climate change by analyzing observed climate-vegetation relationships... coupled changes...

357

(DOE/EIS-0285//SA-80): Supplement Analysis for the Transmission System Vegetation Management Program FEIS (07/01/02)  

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

SA80 SA80 Rocky Reach - Maple Valley Don Atkinson -- - TFN/Snohomish Bill Erickson -- - TFP/Walla Walla Proposed Action: Vegetation Management for USDA Forest Service Lands Along the Rocky Reach - Maple Valley Transmission Line. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along access roads and around tower structures on USDA Forest Service lands that may impede the operation and maintenance of the subject transmission line. See Section 1of the attached checklist for a complete description of the proposal. Analysis: Please see the attached checklist for the resources present. Applicable findings and mitigation measures are discussed below. Planning Steps: 1. Identify facility and the vegetation management need. Access roads (only) and tower sites (only) will be treated using non-selective methods

358

(DOE/EIS-0285/SA-105): Supplement Analysis for the Transmission System Vegetation Management Program FEIS (08/22/02)  

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

2, 2, 2002 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA 105 Elbe Tap to Alder-LaGrande No. 1 James Jellison - TFO/Olympia Proposed Action: Vegetation Management along the Elbe Tap to Alder-LaGrande No.1 and 115kV transmission line from structure 1/1 through structure 7/17. Corridor width varies. The project area is located within Whatcom County, Washington. Location: Transmission line is located at and west of Elbe, Pierce County Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridor. The right-of-way will be treated using selective and non-selective methods that include hand cutting, mowing

359

Plant community composition and vegetation height, Barrow, Alaska, Ver. 1  

DOE Data Explorer (OSTI)

This dataset contains i) the results of field surveys of plant community composition and vegetation height made between 17th and 29th July 2012 in 48, 1 x 1 m plots located in areas A-D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, Alaska and ii) results of a mapping exercise undertaken in August 2013 using two perpendicular transects across each polygon containing vegetation plots to determine the boundaries of vegetation communities described in 2012.

Sloan, Victoria; Norby, Richard; Siegrist, Julia; Iversen, Colleen; Brooks, Jonathan; Liebig, Jennifer; Wood, Sarah

360

Plant community composition and vegetation height, Barrow, Alaska, Ver. 1  

SciTech Connect

This dataset contains i) the results of field surveys of plant community composition and vegetation height made between 17th and 29th July 2012 in 48, 1 x 1 m plots located in areas A-D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, Alaska and ii) results of a mapping exercise undertaken in August 2013 using two perpendicular transects across each polygon containing vegetation plots to determine the boundaries of vegetation communities described in 2012.

Sloan, Victoria; Norby, Richard; Siegrist, Julia; Iversen, Colleen; Brooks, Jonathan; Liebig, Jennifer; Wood, Sarah

2014-04-25T23:59:59.000Z

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


361

Vegetation uptake from burial ground alpha waste trenches  

SciTech Connect

This study was conducted as part of an evaluation of the potential radiological consequences of reinhabiting the SRS burial ground. The objective was to determine the uptake of buried, low-level, transuranic waste from unlined earthen trenches by forest vegetation. Two tree plots were established in 1979. One plot was put over a trench containing alpha waste and the other in an area without trenches. When the tree seedlings were sampled during 1979 and 1980, and analysized for {sup 239}Pu and {sup 238}Pu, there was only a small difference in radionuclude concentration between trees planted over the trench and those planted on the control plot because of the limited root intrusion into the trench by the seedlings. However, when trees were sample in 1986, 1987, and 1988 and analyzed for {sup 241}Am, {sup 238}Pu, {sup 239}Pu, and {sup 237}Np activity, the average activity of all of these isotopes was significantly higher over the trenches than in the control plot. These measurements indicate that tree roots will extract transuranic isotopes from buried, low-level waste. The amount of radioisotopes moved from the trenches to the surface is small and the level in the trees is low enough that dose from exposure will be small. The long term effects of transport of radioisotopes from the trenches to the surface soil was evaluated by estimating the accumulation in the surface soil. Transuranic activity in selected food crops was calculated using the soil activity and the literature derived concentration factors. In all cases, the activity of the transuranic isotopes in the edible portion of the plants was quite low. The activity in the leaf tissue was much higher than in the seed. However, it should be noted that in only one case was the activity higher than the naturally occurring activity of {sup 40}K in the pine foliage.

Murphy, C.E. Jr.; Tuckfield, R.C.

1989-01-01T23:59:59.000Z

362

Driving Down HB-LED Costs: Implementation of Process Simulation Tools and Temperature Control Methods of High Yield MOCVD Growth  

SciTech Connect

The overall objective of this multi-faceted program is to develop epitaxial growth systems that meet a goal of 75% (4X) cost reduction in the epitaxy phase of HB-LED manufacture. A 75% reduction in yielded epitaxy cost is necessary in order to achieve the cost goals for widespread penetration of HB-LEDâ??s into back-lighting units (BLU) for LCD panels and ultimately for solid-state lighting (SSL). To do this, the program will address significant improvements in overall equipment Cost of Ownership, or CoO. CoO is a model that includes all costs associated with the epitaxy portion of production. These aspects include cost of yield, capital cost, operational costs, and maintenance costs. We divide the program into three phases where later phases will incorporate the gains of prior phases. Phase one activities are enabling technologies. In collaboration with Sandia National Laboratories we develop a Fluent-compatible chemistry predictive model and a set of mid-infrared and near-ultraviolet pyrometer monitoring tools. Where previously the modeling of the reactor dynamics were studied within FLUENT alone, here, FLUENT and Chemkin are integrated into a comprehensive model of fluid dynamics and the most advanced transport equations developed for Chemkin. Specifically, the Chemkin model offered the key reaction terms for gas-phase nucleation, a key consideration in the optimization of the MOCVD process. This new predictive model is used to design new MOCVD reactors with optimized growth conditions and the newly developed pyrometers are used monitor and control the MOCVD process temperature to within 0.5°C run-to-run and within each wafer. This portion of the grant is in collaboration with partners at Sandia National Laboratories. Phase two activities are continuous improvement projects which extend the current reactor platform along the lines of improved operational efficiency, improved systems control for throughput, and carrier modifications for increased yield. Programmatically, improvements made in Phase I are applied to developments of Phase II when applicable. Phase three is the culmination of the individual tasks from both phases one and two applied to proposed production platforms. We selectively combine previously demonstrated tasks and other options to develop a high-volume production-worthy MOCVD system demonstrating >3x throughput, 1.3x capital efficiency, and 0.7x cost of ownership. In a parallel demonstration we validate the concept of an improved, larger deposition system which utilizes the predictive modeling of chemistry-based flow analysis and extensions of the improvements demonstrated on the current platforms. This validation includes the build and testing of a prototype version of the hardware and demonstration of 69% reduction in the cost of ownership. Also, in this phase we present a stand-alone project to develop a high-temperature system which improves source efficiency by 30% while concurrently increasing growth rate by 1.3x. The material quality is held to the same material quality specifications of our existing baseline processes. The merits of other line item tasks in phase three are discussed for inclusion on next-generation platforms.

William Quinn

2012-04-30T23:59:59.000Z

363

Vegetation study in support of the design and optimization of vegetative soil covers, Sandia National Laboratories, Albuquerque, New Mexico.  

SciTech Connect

A vegetation study was conducted in Technical Area 3 at Sandia National Laboratories, Albuquerque, New Mexico in 2003 to assist in the design and optimization of vegetative soil covers for hazardous, radioactive, and mixed waste landfills at Sandia National Laboratories/New Mexico and Kirtland Air Force Base. The objective of the study was to obtain site-specific, vegetative input parameters for the one-dimensional code UNSAT-H and to identify suitable, diverse native plant species for use on vegetative soil covers that will persist indefinitely as a climax ecological community with little or no maintenance. The identification and selection of appropriate native plant species is critical to the proper design and long-term performance of vegetative soil covers. Major emphasis was placed on the acquisition of representative, site-specific vegetation data. Vegetative input parameters measured in the field during this study include root depth, root length density, and percent bare area. Site-specific leaf area index was not obtained in the area because there was no suitable platform to measure leaf area during the 2003 growing season due to severe drought that has persisted in New Mexico since 1999. Regional LAI data was obtained from two unique desert biomes in New Mexico, Sevilletta Wildlife Refuge and Jornada Research Station.

Peace, Gerald (Jerry) L.; Goering, Timothy James (GRAM inc., Albuquerque, NM); Knight, Paul J. (Marron and Associates, Albuquerque, NM); Ashton, Thomas S. (Marron and Associates, Albuquerque, NM)

2004-11-01T23:59:59.000Z

364

Supplement Analysis for the Transmission System Vegetation Management Program FEIS DOE/EIS-0285/SA-08  

SciTech Connect

Clearing C-trees along the south side of the right-of-way. This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision (ROD). The project involves controlling all tall growing trees (C-Trees) within the right-of-way. All work is to be done on the south side of centerline. Target vegetation is the tall growing Firs along the edge of the ROW, all of which is located within the back yards of the property owners along the right-of-way. The density of vegetation is low and consists of C-Trees located within backyards, with the branches growing towards the lines. Due to lack of access and past verbal agreements with the landowners, permission/agreement has been difficult to obtain from the property owners. Permission has now been obtained to remove the C-Trees within their back yards which, will soon be a hazard to our transmission line facility. We are working with the landowners to get them to plant low growing scrubs and ornamentals within the right-of-way and adjacent to the right-of-way. A follow up herbicide treatment is not planned because the trees being cut will not re-sprout. This right-of-way or project area is on a three to four year maintenance schedule. Little or no treatment should be required in the immediate future.

N /A

2001-04-23T23:59:59.000Z

365

EIS-0442: Reauthorization of Permits, Maintenance, and Vegetation  

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

42: Reauthorization of Permits, Maintenance, and Vegetation 42: Reauthorization of Permits, Maintenance, and Vegetation Management on Western Area Power Administration Transmission Lines on Forest Service Lands, Colorado, Nebraska, and Utah EIS-0442: Reauthorization of Permits, Maintenance, and Vegetation Management on Western Area Power Administration Transmission Lines on Forest Service Lands, Colorado, Nebraska, and Utah Summary This EIS is being prepared jointly by DOE's Western Area Power Administration and the U.S. Forest Service. The EIS evaluates the potential environmental impacts of Western's proposed changes to vegetation management along its transmission line rights-of-way on National Forest System lands in Colorado, Utah, and Nebraska. The EIS website is http://ww2.wapa.gov/sites/western/transmission/infrastruct/Pages/Western%20FS%20EIS.aspx.

366

Linking Models and Data on Vegetation Structure Submitted to  

E-Print Network (OSTI)

Linking Models and Data on Vegetation Structure Submitted to: Journal of Geophysical Research the original development of "Nachhaltigkeit" or in English "sustainability" with the Germans in the mid-18th

Moorcroft, Paul R.

367

Drag, turbulence, and diffusion in flow through emergent vegetation  

E-Print Network (OSTI)

Aquatic plants convert mean kinetic energy into turbulent kinetic energy at the scale of the plant stems and branches. This energy transfer, linked to wake generation, affects vegetative drag and turbulence intensity. ...

Nepf, Heidi

368

Further Tests of Vegetable Varieties for the Winter Garden Region.  

E-Print Network (OSTI)

Watermelon 3 8 Summary of Promising Varieties 42 AcknowIedgments Literature Cited BULLETIN NO. 546 JULY , 1937 FURTHER TESTS OF VEGETABLE VARIETIES FOR THE WINTER GARDEN REGION By Leslie R. Hawthorn, Horticulturist, Substation No. 19, Winter Haven...

Hawthorn, L. R. (Leslie Rushton)

1937-01-01T23:59:59.000Z

369

Investigation of Soil Moisture - Vegetation Interactions in Oklahoma  

E-Print Network (OSTI)

, but not well understood climate factor. This study examines soil moisture-vegetation health interactions using both in situ observations and land surface model simulations. For the observational study, soil moisture is taken from 20 in situ Oklahoma Mesonet...

Ford, Trenton W.

2013-03-06T23:59:59.000Z

370

British Society for the Promotion of Vegetable Research  

Science Journals Connector (OSTI)

... the Society 150 acres of land which it owns at Paglesham, Essex, for a substation primarily to be used for the multiplication of stocks of seed of vegetables bred at ...

1949-10-22T23:59:59.000Z

371

BPA's Vegetation Management Program - Fact Sheet - May 2006  

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

and encroachments that could hinder BPA's ability to access and maintain its lines. BPA manages the vegetation on and near its rights-of-way to keep people safe and the system...

372

EIS-0097: Bonneville Power Administration Transmission Facilities Vegetation Management Program  

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

The U.S. Department of Energy’s Bonneville Power Administration prepared this statement to assess the potential environmental and socioeconomic implications of various alternatives associated with implementing a vegetation management program.

373

Spatial distribution of deposition within a patch of vegetation  

E-Print Network (OSTI)

This laboratory study describes the spatial pattern of deposition observed in a patch of vegetation located at the wall of a channel. There are two sources of sediment flux to the patch: the advection of particles across ...

Zong, Lijun

374

Managing Insect and Mite Pests in Vegetable Gardens  

E-Print Network (OSTI)

insects and other pests. Understanding insects About 30,000 species of insects are found in Texas; fewer than 100 routinely cause problems in vegetable gardens. Most garden insects are either incidental or beneficial when they help with pol- lination...

Jackman, John A.

2008-02-19T23:59:59.000Z

375

(DOE/EIS-0285/SA-99): Supplement Analysis for the Transmission System Vegetation Management Program FEIS -Olympia-Grand Coulee No.1 8/29/02  

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

9, 9, 2002 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-99-Olympia-Grand Coulee No. 1 Don Atkinson - TFN/Snohomish Proposed Action: Vegetation Management along the Olympia-Grand Coulee No. 1, 287 kV transmission line from structure 53/4 through structure 64/1. Corridor width is 125 feet. Location: The project area is located within King County, Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridor. Approximately 163 acres will be treated using selective and non-selective methods that include hand cutting, mowing and herbicide treatments. Vegetation management is required for unimpeded

376

Vegetation mosaic and deer distribution in south Texas  

E-Print Network (OSTI)

VEGETATION MOSAIC AND DEER DISTRIBUTION IN SOUTH TEXAS A Thesis MARTIN N. TCHAMBA Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1988 Major... Subject: Wildlife and Fisheries Sciences VEGETATION MOSAIC AND DEER DISTRIBUTION IN SOUTH TEXAS A Thesis by Martin N. Tchamba Approved as to style and content by: L le H. Blankenship (Co-Chairman) Jane M. Packard (Co-Chairman) ar W. Varner...

Tchamba, Martin N.

2012-06-07T23:59:59.000Z

377

Implementing New Methods of Laser Marking of Items in the Nuclear Material Control and Accountability System at SSC RF-IPPE: An Automated Laser Marking System  

SciTech Connect

For over ten years SSC RF-IPPE, together with the US DOE National Laboratories, has been working on implementing automated control and accountability methods for nuclear materials and other items. Initial efforts to use adhesive bar codes or ones printed (painted) onto metal revealed that these methods were inconvenient and lacked durability under operational conditions. For NM disk applications in critical stands, there is the additional requirement that labels not affect the neutron characteristics of the critical assembly. This is particularly true for the many stainless-steel clad disks containing highly enriched uranium (HEU) and plutonium that are used at SSC RF-IPPE for modeling nuclear power reactors. In search of an alternate method for labeling these disks, we tested several technological options, including laser marking and two-dimensional codes. As a result, the method of laser coloring was chosen in combination with Data Matrix ECC200 symbology. To implement laser marking procedures for the HEU disks and meet all the nuclear material (NM) handling standards and rules, IPPE staff, with U.S. technical and financial support, implemented an automated laser marking system; there are also specially developed procedures for NM movements during laser marking. For the laser marking station, a Zenith 10F system by Telesis Technologies (10 watt Ytterbium Fiber Laser and Merlin software) is used. The presentation includes a flowchart for the automated system and a list of specially developed procedures with comments. Among other things, approaches are discussed for human-factor considerations. To date, markings have been applied to numerous steel-clad HEU disks, and the work continues. In the future this method is expected to be applied to other MC&A items.

Regoushevsky, V I; Tambovtsev, S D; Dvukhsherstnov, V G; Efimenko, V F; Ilyantsev, A I; Russ III, G P

2009-05-18T23:59:59.000Z

378

Assistant Professor Fruit and Vegetable Entomologist  

E-Print Network (OSTI)

assessment of cover crops, host plant resistance, biological control and pollinator conservation monitoring systems and strategies to mitigate insecticide resistance. Collaboration is expected in sustainable food production systems. Qualifications - Required: Ph.D. or internationally equivalent degree

Aukema, Brian

379

Raw versus Cooked Vegetables and Cancer Risk  

Science Journals Connector (OSTI)

...study center, education, parity, energy, and alcohol intake but not for known...hypopharyngeal and esophageal cancer (Japan). Cancer Causes Control 2000;11...Hsu JP, Fry WG, Parker RP. Effect of household preparation on levels of pesticide residues...

Lilli B. Link and John D. Potter

2004-09-01T23:59:59.000Z

380

Energy saving performance of green vegetation on LEED certified buildings  

Science Journals Connector (OSTI)

Abstract Sustainable building practices can considerably reduce building's environmental impact in energy consumption. Covering a building envelope with green vegetation, such as green roof and green wall, is considered a sustainable construction practice, as green vegetation has a positive performance in energy savings. It reduces heat flux and solar reflectivity, generates evaporative cooling, increases thermal performance of the building envelope, and blocks the wind effect on the building. This paper analyses the energy performance of green vegetation in a high occupancy LEED Gold standard building in Canada. DesignBuilder software was used to model the energy consumption for heating and cooling, and EnergyPlus software was used to perform the detailed energy simulations. The developed simulation model was validated with the actual energy consumptions of the selected building. Three different scenarios of green vegetation were simulated and the results show that green vegetation could considerably reduce the negative heat transfer through the building façade in summer and winter months. However, the analysis demonstrated that the green vegetation is not cost-effective in winter months or cold climatic regions due to the low energy savings performance. The paper concludes with recommendations to improve the overall energy performance in green buildings.

H. Feng; K. Hewage

2014-01-01T23:59:59.000Z

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


381

Uncertainty analysis of vegetation distribution in the northern high latitudes during the 21st century with a dynamic vegetation model  

E-Print Network (OSTI)

This study aims to assess how high-latitude vegetation may respond under various climate scenarios during the 21st century with a focus on analyzing model parameters induced uncertainty and how this uncertainty compares ...

Jiang, Yueyang

382

Advection, dispersion, and filtration of fine particles within emergent vegetation of the Florida Everglades  

E-Print Network (OSTI)

.g., phosphorous) [Sansalone and Buchberger, 1997; Noe et al., 2007]. [3] Wetland vegetation influences flow

383

Vegetation responses in Alaskan arctic tundra after 8 years of a summer warming and winter snow  

E-Print Network (OSTI)

by insulating vegetation from winter wind and temperature extremes, modifying winter soil temperatures

Ickert-Bond, Steffi

384

A Typology of Foredune Textures: Sand Patches and Climate Controls  

E-Print Network (OSTI)

Foredunes are formed and developed in association with vegetation. A bare sand area has been viewed as a measure of dune mobility or activity and researched in association with climate controls: particularly wind power, annual mean precipitation...

Ryu, Wansang

2012-12-10T23:59:59.000Z

385

Advanced process control and novel test methods for PVD silicon and elastomeric silicone coatings utilized on ion implant disks, heatsinks and selected platens  

SciTech Connect

Coatings play multiple key roles in the proper functioning of mature and current ion implanters. Batch and serial implanters require strategic control of elemental and particulate contamination which often includes scrutiny of the silicon surface coatings encountering direct beam contact. Elastomeric Silicone Coatings must accommodate wafer loading and unloading as well as direct backside contact during implant plus must maintain rigid elemental and particulate specifications. The semiconductor industry has had a significant and continuous effort to obtain ultra-pure silicon coatings with sustained process performance and long life. Low particles and reduced elemental levels for silicon coatings are a major requirement for process engineers, OEM manufacturers, and second source suppliers. Relevant data will be presented. Some emphasis and detail will be placed on the structure and characteristics of a relatively new PVD Silicon Coating process that is very dense and homogeneous. Wear rate under typical ion beam test conditions will be discussed. The PVD Silicon Coating that will be presented here is used on disk shields, wafer handling fingers/fences, exclusion zones of heat sinks, beam dumps and other beamline components. Older, legacy implanters can now provide extended process capability using this new generation PVD silicon - even on implanter systems that were shipped long before the advent of silicon coating for contamination control. Low particles and reduced elemental levels are critical performance criteria for the silicone elastomers used on disk heatsinks and serial implanter platens. Novel evaluation techniques and custom engineered tools are used to investigate the surface interaction characteristics of multiple Elastomeric Silicone Coatings currently in use by the industry - specifically, friction and perpendicular stiction. These parameters are presented as methods to investigate the critical wafer load and unload function. Unique tools and test methods have been developed that deliver accurate and repeatable data, which will be described.

Springer, J.; Allen, B.; Wriggins, W.; Kuzbyt, R.; Sinclair, R. [Core Systems, 1050 Kifer Road Sunnyvale, CA 94086 (United States); FI Silicon, 1050 Kifer Road Sunnyvale, CA 94086 (United States); Core Systems, 1050 Kifer Road Sunnyvale, CA 94086 (United States)

2012-11-06T23:59:59.000Z

386

Assessing the Vegetation Condition Impacts of the 2011 Drought Across the U.S. Southern Great Plains Using the Vegetation Drought Response Index (VegDRI)  

Science Journals Connector (OSTI)

The Vegetation Drought Response Index (VegDRI), which combines traditional climate- and satellite-based approaches for assessing vegetation conditions, offers new insights into assessing the impacts of drought from local to regional scales. In ...

Tsegaye Tadesse; Brian D. Wardlow; Jesslyn Brown; Michael Hayes; Mark Svoboda; Brian Fuchs; Denise Gutzmer

387

Assessment of soil and water conservation methods applied to the cultivated steeplands of southern Honduras  

E-Print Network (OSTI)

conservation methods. These methods include use of mulch management, vegetative barriers, and agroforestry in place of the traditional burning practice. To demonstrate the effectiveness of these soil and water conservation methods, LUPE needs quantifiable...

Smith, James E

1997-01-01T23:59:59.000Z

388

Vegetation's Red Edge: A Possible Spectroscopic Biosignature of Extraterrestrial Plants  

E-Print Network (OSTI)

Earth's deciduous plants have a sharp order-of-magnitude increase in leaf reflectance between approximately 700 and 750 nm wavelength. This strong reflectance of Earth's vegetation suggests that surface biosignatures with sharp spectral features might be detectable in the spectrum of scattered light from a spatially unresolved extrasolar terrestrial planet. We assess the potential of Earth's step-function-like spectroscopic feature, referred to as the "red edge", as a tool for astrobiology. We review the basic characteristics and physical origin of the red edge and summarize its use in astronomy: early spectroscopic efforts to search for vegetation on Mars and recent reports of detection of the red edge in the spectrum of Earthshine (i.e., the spatially integrated scattered light spectrum of Earth). We present Earthshine observations from Apache Point Observatory to emphasize that time variability is key to detecting weak surface biosignatures such as the vegetation red edge. We briefly discuss the evolutionary advantages of vegetation's red edge reflectance, and speculate that while extraterrestrial "light harvesting organisms" have no compelling reason to display the exact same red edge feature as terrestrial vegetation, they might have similar spectroscopic features at different wavelengths than terrestrial vegetation. This implies that future terrestrial-planet-characterizing space missions should obtain data that allow time-varying, sharp spectral features at unknown wavelengths to be identified. We caution that some mineral reflectance edges are similar in slope and strength to vegetation's red edge (albeit at different wavelengths); if an extrasolar planet reflectance edge is detected care must be taken with its interpretation.

Sara Seager; Edwin L. Turner; Justin Schafer; Eric B. Ford

2005-03-14T23:59:59.000Z

389

The Implementation of Vegetation Management Projects on U.S. Forest Service Lands: The Big Eddy-Ostrander Vegetation Project on the Mt. Hood National Forest  

Science Journals Connector (OSTI)

Publisher Summary Utility forestry has become a primary maintenance issue for the Bonneville Power Administration (BPA) since August 10, 1996, western United States outage. This issue has been sustained by the massive power outage caused by tree outages in the summer of 2003 in the northeastern United States. One of the responses to the 1996 event by the Bonneville Power Administration was to develop a programmatic Environmental Impact Statement (EIS) for the transmission system. The goal of the EIS was to develop a strategy and provide a clear path for managers to implement environmental analysis when developing powerline vegetation management programs on BPA rights-of-way that cross in the Pacific Northwest. The Big Eddy-Ostrander project initiated on U.S. Forest Service lands, proposed the use of herbicides using the EIS as the analysis guide. As a cooperative project with the Oregon Department of Agriculture and the U.S. Forest Service to control noxious weeds, many items needed to be worked out. These items included: the determination of who was the lead agency for the project, what formats should be used for environmental documents, who could appeal the process, and what did each agency want to see during the environmental analysis process. The end result of the process was that in the summer of 2003, BPA made the first herbicide treatment for vegetation management on the right-of way located in the Zig Zag Ranger District in over 20 years.

William T. Erickson

2008-01-01T23:59:59.000Z

390

Optimal Filtering, Methods AUTOMATIC CONTROL  

E-Print Network (OSTI)

SYSTEMS 7Updating Pi By use of the generalized Stoke's identity the update can be done as Ki+1 = Ki - FLiR

Gustafsson, Fredrik

391

Novel Bioplastics and biocomposites from Vegetable Oils  

SciTech Connect

Polymeric materials have been prevalent in our everyday lives for quite a long time. Most of today's polymeric materials are derived from nonrenewable petroleum-based feedstocks. Instabilities in the regions where petroleum is drilled, along with an increased demand in petroleum, have driven the price of crude oil to record high prices. This, in effect, increases the price of petroleum-based polymeric materials, which has caused a heightened awareness of renewable alternatives for polymeric feedstocks. Cellulose, starch, proteins and natural oils have all been examined as possible polymeric feedstocks. Natural oils are commercially available on a large scale and are relatively cheap. It is projected that the U.S. alone will produce 21 billion pounds of soybean oil in the period 2008/2009. Natural oils also have the advantages of inherent biodegradability, low toxicity, high purity and ready availability. Most natural oils possess a triglyceride structure as shown in Figure 1. Most natural oils have a unique distribution of fatty acid side chains, along with varying degrees of unsaturation per triglyceride. Common fatty acid side chains in naturally occurring oils are palmitic acid (C16:0), a 16 carbon fatty acid with no unsaturation; stearic acid (C18:0), an 18 carbon fatty acid with no unsaturation; oleic acid (C18:1), an 18 carbon fatty acid with one double bond; linoleic acid (C18:2), an 18 carbon fatty acid with two double bonds; and linolenic acid (C18:3), an 18 carbon fatty acid with three double bonds. Of course, there are other fatty acids with varying degrees of unsaturation, but their abundance is usually minimal. All of the unsaturated fatty acids mentioned have naturally occurring cis double bonds, which is common for most unsaturated fatty acids. In addition, the afore mentioned fatty acids have the first double bond at the position of carbon 9 (C9), followed by carbon 12 (C12), if there are two degrees of unsaturation, then at carbon 15 (C15), if there are three degrees of unsaturation. In addition, the double bonds are not in conjugation. Table 1 gives the fatty acid make-up of linseed oil. It can be seen that linseed oil has an average of 6.0 double bonds per triglyceride. Its fatty acid content consists of 5.4% palmitic acid (C16:0), 3.5% stearic acid (C18:0), 19% oleic acid (C18:1), 24 % linoleic acid (C18:2) and 47% linolenic (C18:3). Table 1 also gives the fatty acid composition and varying degrees of unsaturation for various other naturally-occurring natural vegetable oils. The regions of unsaturation in natural oils allow for interesting polymer chemistry to take place. Some of this interesting polymer science, however, involves chemical modification of the regions of unsaturation. Acrylated epoxidized soybean oil (AESO) is prepared by epoxidation of the double bonds, followed by ring opening with acrylic acid. The resulting oil has both acrylate groups and hydroxyl groups. Wool and colleagues have further reacted the hydroxyl groups within the oil with maleic anhydride to produce maleated acrylated epoxidized soybean oil (MAESO). The MAESO has been copolymerized with styrene free radically to produce promising thermosetting sheet molding resins. Petrovi? and co-workers have directly ring opened the epoxidized oil to produce polyols that produce promising polyurethanes through condensation polymerization with diisocyanates. Our group's work initially focused on direct cationic copolymerization of the double bonds or conjugated double bonds of natural oils with monomers, such as styrene and divinylbenzene, to produce promising thermosetting resins. The only modification of the oils that was carried out in these studies was conjugation of the double bonds to enhance the reactivity of the oil. This work has been expanded recently with the incorporation of glass fiber to produce promising composites. We have also explored thermal polymerization techniques to make novel thermosets. This dissertation is divided into four chapters. The first chapter discusses the synthesis and characterization of biobased

Phillip H. Henna

2008-08-18T23:59:59.000Z

392

Integrated Biological Control  

SciTech Connect

Biological control is any activity taken to prevent, limit, clean up, or remediate potential environmental, health and safety, or workplace quality impacts from plants, animals, or microorganisms. At Hanford the principal emphasis of biological control is to prevent the transport of radioactive contamination by biological vectors (plants, animals, or microorganisms), and where necessary, control and clean up resulting contamination. Other aspects of biological control at Hanford include industrial weed control (e.g.; tumbleweeds), noxious weed control (invasive, non-native plant species), and pest control (undesirable animals such as rodents and stinging insects, and microorganisms such as molds that adversely affect the quality of the workplace environment). Biological control activities may be either preventive (a priori) or in response to existing contamination spread (a posteriori). Surveillance activities, including ground, vegetation, flying insect, and other surveys, and a priori control actions, such as herbicide spraying and placing biological barriers, are important in preventing radioactive contamination spread. If surveillance discovers that biological vectors have spread radioactive contamination, a posteriori control measures, such as fixing contamination, followed by cleanup and removal of the contamination to an approved disposal location are typical response functions. In some cases remediation following the contamination cleanup and removal is necessary. Biological control activities for industrial weeds, noxious weeds and pests have similar modes of prevention and response.

JOHNSON, A.R.

2003-10-09T23:59:59.000Z

393

Integrated Biological Control  

SciTech Connect

Biological control is any activity taken to prevent, limit, clean up, or remediate potential environmental, health and safety, or workplace quality impacts from plants, animals, or microorganisms. At Hanford the principal emphasis of biological control is to prevent the transport of radioactive contamination by biological vectors (plants, animals, or microorganisms), and where necessary, control and clean up resulting contamination. Other aspects of biological control at Hanford include industrial weed control (e.g.; tumbleweeds), noxious weed control (invasive, non-native plant species), and pest control (undesirable animals such as rodents and stinging insects; and microorganisms such as molds that adversely affect the quality of the workplace environment). Biological control activities may be either preventive (apriori) or in response to existing contamination spread (aposteriori). Surveillance activities, including ground, vegetation, flying insect, and other surveys, and apriori control actions, such as herbicide spraying and placing biological barriers, are important in preventing radioactive contamination spread. If surveillance discovers that biological vectors have spread radioactive contamination, aposteriori control measures, such as fixing contamination, followed by cleanup and removal of the contamination to an approved disposal location are typical response functions. In some cases remediation following the contamination cleanup and removal is necessary. Biological control activities for industrial weeds, noxious weeds and pests have similar modes of prevention and response.

JOHNSON, A.R.

2002-09-01T23:59:59.000Z

394

Vegetation and Other Development Options for Mitigating Urban Air Pollution Impacts  

Science Journals Connector (OSTI)

While air pollution control devices and programs are the primary method of reducing emissions, urban air pollution can be further mitigated through planning and...

Richard Baldauf; David Nowak

2014-07-01T23:59:59.000Z

395

Sweet potatoes are a warm-weather vegetable  

E-Print Network (OSTI)

Sweet potatoes are a warm- weather vegetable related to the morning glory family.Although Louisiana sweet potatoes are often referred to as yams, they truly are sweet potatoes. The Louisiana producers began calling the orange-fleshed sweet potatoes grown in Louisiana"yams" to distinguish them from

396

Contribution of Dynamic Vegetation Phenology to Decadal Climate Predictability  

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In this study, the impact of coupling and initializing the leaf area index from the dynamic vegetation model Lund–Potsdam–Jena General Ecosystem Simulator (LPJ-GUESS) is analyzed on skill of decadal predictions in the fully coupled atmosphere–land–...

Martina Weiss; Paul A. Miller; Bart J. J. M. van den Hurk; Twan van Noije; Simona ?tef?nescu; Reindert Haarsma; Lambertus H. van Ulft; Wilco Hazeleger; Philippe Le Sager; Benjamin Smith; Guy Schurgers

2014-11-01T23:59:59.000Z

397

A phenomenological model for the flow resistance over submerged vegetation  

E-Print Network (OSTI)

A phenomenological model for the flow resistance over submerged vegetation Alexandra G. Konings,1: Konings, A. G., G. G. Katul, and S. E. Thompson (2012), A phenomenological model for the flow resistance [2002]. In this paper, a phenomenological approach is used to describe the momentum transfer

Katul, Gabriel

398

Reliability Based Vegetation Management Through Intelligent System Monitoring  

E-Print Network (OSTI)

management programs for transmission lines operated at 200 kV and above are now subject to a reliability vegetation-caused outages. Programs for lower voltage lines are subject to state regulatory policies data that was utilized and referenced in this report. #12;ii Executive Summary Trees and other

399

(DOE/EIS-0285/SA-06): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 4/13/01  

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

4/13/01 4/13/01 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-06) Bill Erickson - TFP/Walla Walla Natural Resource Specialist Proposed Action: Vegetation Management of annual weeds on seven acres of Bonneville Power Administration (BPA) owned pastureland at the Walla Walla Substation. Location: The pastureland is adjacent to the Walla Walla Substation and is located east and north of the fenced substation, all within the BPA property boundary. Proposed by: Bonneville Power Administration. Description of the Proposed Action: BPA proposes to apply selected herbicides to control annual weeds that are competing with native grasses that were seeded two years ago. Herbicides will also

400

(DOE/EIS-0285/SA-14): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 6/6/01  

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

4) 4) Bill Erickson - TFP/ Walla Walla Region Natural Resource Specialist Proposed Action: Vegetation Management at the Teakean Butte Microwave site. Location: Clearwater County, ID, Walla Walla Region. Proposed by: Bonneville Power Administration (BPA). Description of the Proposed Action: BPA proposes to remove 28 danger trees and dense brush from the microwave site in order to provide a 75 -80 foot safety buffer for fire control and Microwave Beam path. The work will protect BPA's investment at the site and provide system reliability. All work will be in accordance with the National Electrical Safety Code and BPA standards. Analysis: This project meets the standards and guidelines for the Transmission System Vegetation Management Program Final Environmental Impact Statement (FEIS) and Record of Decision

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


401

Valuing vegetation in an urban watershed  

Science Journals Connector (OSTI)

This study uses the hedonic price method to examine if land cover types-trees, shrubs, water and impervious surface areas-affect the sale price of single-family residential properties in Multnomah County, Oregon. We combine detailed structural and location information for 36,753 single-family residential property sales with the percentage of land cover on each property and within three buffers surrounding each property. Trees contribute positively to a property's sale price, but the estimated increase may be less than the costs of planting and caring for trees. Benefits received by nearby property owners may justify actions by government agencies to expand canopy coverage.

Jonathan Kadish; Noelwah R. Netusil

2012-01-01T23:59:59.000Z

402

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-148- McNary Wildlife (McNary-Santiam #2))  

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

REPLY TO ATTN OF: KEP/4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-148- McNary Wildlife (McNary-Santiam #2)) Mark Newbill - TFE/Chemawa Proposed Action: Joint project with US Forest Service for vegetation control for the McNary- Santiam #2 230 kV transmission line that enhances wildlife habitat under powerlines. Location: The project is located in the BPA Eugene Region within Marion County, Oregon. Proposed by: Bonneville Power Administration (BPA) in cooperation with US Forest Service. Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way by hand cutting or machine mowing. The overall goal is to remove small fir trees, brushy

403

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-142- KeelerOregon City #2  

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

2- KeelerOregon City #2) 2- KeelerOregon City #2) Mark Newbill Natural Resource Specialist- TFE/Chemawa Proposed Action: Vegetation Management for the Keeler-Oregon City #2 115 kV transmission line from Keeler Substation to Oregon City Substation. Includes 5 miles of the St. Johns- Oregon City #2 69 kV transmission line. Location: The project is located in the BPA Eugene Region, Washington County, Oregon. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation via hand cutting along the right-of-way, access roads, switch platforms, microwave beam paths, and around tower structures of the subject transmission line corridor that may impede the operation and maintenance of the identified transmission lines. BPA plans to conduct vegetation control with

404

ERDC/ELTR-04-5 Aquatic Plant Control Research Program  

E-Print Network (OSTI)

ERDC/ELTR-04-5 Aquatic Plant Control Research Program Aquatic Vegetation Restoration in Cooper Lake/EL TR-04-5 May 2004 Aquatic Vegetation Restoration in Cooper Lake, Texas: A Case Study Gary Owen Dick, R. Michael Smart, JoEtta K. Smith Lewisville Aquatic Ecosystem Research Facility U.S. Army Engineer Research

US Army Corps of Engineers

405

ERDC/ELTR-04-6 Aquatic Plant Control Research Program  

E-Print Network (OSTI)

ERDC/ELTR-04-6 Aquatic Plant Control Research Program Aquatic Vegetation Restoration in El Dorado/EL TR-04-6 May 2004 Aquatic Vegetation Restoration in El Dorado Lake, Kansas: A Case Study Gary Owen Dick, R. Michael Smart Lewisville Aquatic Ecosystem Research Facility U.S. Army Engineer Research

US Army Corps of Engineers

406

ERDC/ELTR-04-7 Aquatic Plant Control Research Program  

E-Print Network (OSTI)

ERDC/ELTR-04-7 Aquatic Plant Control Research Program Aquatic Vegetation Restoration in Arcadia Research Program ERDC/EL TR-04-7 May 2004 Aquatic Vegetation Restoration in Arcadia Lake, Oklahoma: A Case Study Gary Owen Dick, R. Michael Smart, Eugene R. Gilliland Lewisville Aquatic Ecosystem Research

US Army Corps of Engineers

407

Vegetation Change in Salt Marshes of Cape Cod National Seashore (Massachusetts, USA) Between 1984 and 2013  

Science Journals Connector (OSTI)

Vegetation patterns in salt marshes are largely based on elevation in relation to tidal flooding. In New England salt marshes, vegetation is distinctly zoned into species that occur in the high marsh (elevatio...

Stephen M. Smith

2014-12-01T23:59:59.000Z

408

MODIS Consistent Vegetation Parameter Specifications and Their Impacts on Regional Climate Simulations  

Science Journals Connector (OSTI)

A consistent set of Moderate Resolution Imaging Spectroradiometer (MODIS) vegetation parameters, including leaf and stem area index (LAI and SAI, respectively), land-cover category (LCC), fractional vegetation cover (FVC), and albedo ...

Min Xu; Xin-Zhong Liang; Arthur Samel; Wei Gao

2014-11-01T23:59:59.000Z

409

The role of vegetation in the CO[subscript 2] flux from a tropical urban neighbourhood  

E-Print Network (OSTI)

Urban surfaces are usually net sources of CO[subscript 2]. Vegetation can potentially have an important role in reducing the CO[subscript 2] emitted by anthropogenic activities in cities, particularly when vegetation is ...

Velasco, E.

410

Optimization of Geoscience Laser Altimeter System waveform metrics to support vegetation measurements  

E-Print Network (OSTI)

Optimization of Geoscience Laser Altimeter System waveform metrics to support vegetation GLAS Optimization Remote sensing Vegetation structure The Geoscience Laser Altimeter System (GLAS) has optimized a noise coefficient which could be constant or vary according to observation period or noise

Lefsky, Michael

411

Influence of woody plant on spring and riparian vegetation in central Texas  

E-Print Network (OSTI)

spring flow and vegetation cover in a first-order watershed and investigate the herbaceous community structure of upland riparian zones. This study consists of two major components: (1) the effects of environmental factors and vegetation cover on spring...

Shen, Li

2009-05-15T23:59:59.000Z

412

Woody vegetation and succession on the Fonde surface mine demonstration area, Bell County, Kentucky  

SciTech Connect

The long term impact of surface mining on vegetation and plant succession has always been of concern to environmentalists and residents of Appalachia. The Fonde Surface Mine Demonstration Area is a 7.3-ha, NE-NW-aspect contour coal mine at an elevation of 562 m. It was reclaimed in 1965 to show state-of-the-art surface mine reclamation techniques consistent with then-current law and regulations after coal mining in 1959 and 1963. The mine spoils were lightly graded to control erosion and crates a bench with water control and two sediment ponds. Soil pH ranged from 2.8 to 5.9. About 80 percent of the mine was planted with 18 tree and shrub species including plantations of mixed pine, mixed hardwoods, black locust, and shrubs for wildlife. In a complete floristic inventory conducted 25 years later, the authors found the woody flora consisted of 34 families, 53 genera, and 70 species including 7 exotics. This inventory of the Fonde mine shows that a diverse forest vegetation can be reestablished after extreme disturbances in Appalachia. Black locust, yellow poplar, and Virginia pine reproduction varied significantly among plantation types. Canopy tree species significantly affected ground layer cover, total species richness, number of tree seedling species, and total number of tree seedlings present. Mine soil type affected ground layer percent cover and total species richness. Pre-SMCRA (Surface Mining Control and Reclamation Act of 1977) reclaimed and inventoried mines can be used to evaluate biodiversity on post-SMCRA mines.

Wade, G.L.; Thompson, R.L.

1999-07-01T23:59:59.000Z

413

Effects of Cruciferous Vegetable Consumption on Urinary Metabolites of the Tobacco-Specific Lung Carcinogen 4-(Methylnitrosamino)-1-(3-Pyridyl)-1-Butanone in Singapore Chinese  

Science Journals Connector (OSTI)

...chromatography purification, and quantitation by gas chromatography with nitrosamine selective...vegetables, and lung cancer risk in women: the Missouri womens health study (United States...and on methods of analysis in respect of oil seeds. Official Journal of the European...

Stephen S. Hecht; Steven G. Carmella; Patrick M.J. Kenney; Siew-Hong Low; Kazuko Arakawa; and Mimi C. Yu

2004-06-01T23:59:59.000Z

414

Updated March 2013 Eat Smart, Live Strong is designed to improve fruit and vegetable consumption and  

E-Print Network (OSTI)

Updated March 2013 Eat Smart, Live Strong is designed to improve fruit and vegetable consumption: · eat at least 3 ½ cups of fruit and vegetable per day (1 ½ cups of fruits and 2 cups of vegetables;Session 1, Reach Your Goals, Step by Step allows participants to review the amount of fruits

415

Fire recurrence in the subarctic and its implications for vegetation composition E. A. JOHNSON  

E-Print Network (OSTI)

Fire recurrence in the subarctic and its implications for vegetation composition E. A. JOHNSON JOHNSON,,E. A. 1979. Fire recurrence in the subarctic and its implications for vegetation composition. Can of the distribution's hazard of burning function to vegetation composition and r-K selection is discussed. JOHNSON,E

Johnson, Edward A.

416

ERDC/CERLTR-05-39 Simulation of Vegetation Recovery from  

E-Print Network (OSTI)

ERDC/CERLTR-05-39 Simulation of Vegetation Recovery from Military Disturbances on Fort Bliss Tamara of Vegetation Recovery from Military Disturbances on Fort Bliss Tamara Hochstrasser and Debra Peters USDA the vegetation simulation modeling capabilities of Fort Bliss, Texas, for evaluating the effects of military

Fehmi, Jeffrey S.

417

Flue gas desulfurization sludge: establishment of vegetation on ponded and soil-applied waste. Final report January 1977-September 1981  

SciTech Connect

The report gives results of research to identify and evaluate forms of vegetation and methods of their establishment for reclaiming retired flue gas desulfurization sludge ponds. Also studied were the soil liming value of limestone scrubber sludge (LSS) and plant uptake and percolation losses of some chemical nutrients in the sludge. Several vegetation schemes were evaluated between 1977 and 1982 for covering and stabilizing LSS at Colbert Steam Plant, Cherokee, AL, and Shawnee Steam Plant, Paducah, KY. Eleven tree and 10 grass or legume species were tested for adaptability and survival when planted directly in LSS or in LSS amended with soil, municipal sewage sludge, or standard potting mix. Other studies indicated that LSS apparently has sufficient unreacted limestone to be a satisfactory soil liming agent.

Giordano, P.M.; Mays, D.A.; Soileau, J.M.

1984-01-01T23:59:59.000Z

418

(DOE/EIS-0285-SA-115): Supplement Analysis for the Transmission System Vegetation Management Program FEIS, Shelton-Fairmount # 1-4 12/20/02  

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

0, 0, 2002 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA 115, Shelton- Fairmount # 1-4. James A. Jellison - TFO/Olympia Proposed Action: Vegetation Management along the Shelton Fairmount # 1-4 230kV & 115kV transmission lines corridor from structure 34/3 through structure 60/2 (reference line ADNO 8354). Right of way width averages 258 feet. Location: The project area is located in Jefferson County, Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way, access roads and around tower structures along the subject transmission line corridors. Approximately 26 miles of right-of-way will be treated using selective and non-selective methods that include hand cutting, mowing and

419

Supplement Analysis for the Transmission System Vegetation Management Program FEIT (DOE/EIS-0285/SA-95) Chehalis-Olympia No. 1 and Chehalis-Centralia No. 2  

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

5) 5) Chehalis-Olympia No.l and Chehalis-Centralia No. 2 James A. Jellison - TFO/Olympia Natural Resource Specialist Proposed Action: Vegetation management along the Chehalis-Olympia No. 1 and Chehalis-Centralia No. 2, 230kV transmission line. The project area is located within Lewis and Thurston Counties, Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridor. The right-of-way will be treated using selective and non-selective methods that include hand cutting, mowing and herbicide treatments. Approximately 29 miles of access roads and corridor will be treated. Vegetation management is required for unimpeded operation and maintenance of the subject transmission line. See

420

(DOE/EIS-0285/SA-110): Supplement Analysis for the Transmission System Vegetation Management Program FEIS-Covington-Columbia No. 3) 10/2/02  

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

2, 2, 2002 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS DOE/EIS-0285/SA-110-Covington-Columbia No. 3 Don Atkinson - TFN/Snohomish Proposed Action: Vegetation Management along the Covington-Columbia No. 3, 230kV transmission lines from structure 1/1 through structure 12/1. Corridor width varies from 150 feet to 537.5 feet. The project area is located within King County, Washington. Location: The project area is located within King County, Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridor. Approximately 568.4 acres of the right-of-way will be treated using selective and non-selective methods that include

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


421

Vegetation, edaphic, and topographic interrelationships in an East Texas forest  

E-Print Network (OSTI)

VEGETATION, EDAPHIC, AND TOPOGRAPHIC INTERRELATIONSHIPS IN AN EAST TEXAS FOREST A Thesis by JOHNNY ZANE HINTON Approved as to style and content by: (Chairman of Committee) (Member) (Member) (Head of Department) December 1981 ABSTRACT... Vegetat1on, Edaphic, and Topographic Interrelationsh1ps In an East Texas Forest. (Oecember 1981) Johnny Zane Hinton, B. S. , Texas A&M Un1versity Chairman of Advisory Committee: Dr. Fred E, Sme1ns Thirty stands were sampled on the Angelina National...

Hinton, Johnny Zane

1981-01-01T23:59:59.000Z

422

Iodine in Drinking Waters, Vegetables, Cottonseed Meal, and Roughages.  

E-Print Network (OSTI)

LIBRARY, A & M COLLEGE, G. S. FRAPS and J. F. FUDGE Division of Chemistry TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIRECTOR, College Station, Texas BULLETIN NO. 595 NOVEMBER 1940 -- IODINE IN DRINKING WATERS, VEGETABLES..., COTTONSEED MEAL, AND ROUGEIAGES ! .I rq?,\\?Y - AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS T. 0. WALTON, President A96-1140-7M-LJ.80 5 [Blank Page in Original Bulletin] Iodine was determined in nearly 500 samples of city and rural drinking waters...

Fudge, J. F. (Joseph Franklin); Fraps, G. S. (George Stronach)

1940-01-01T23:59:59.000Z

423

Vegetative Propagation and Topophytic Responses of Selected Baldcypress Clones  

E-Print Network (OSTI)

, were kept overnight in a cooler at 8.7° C to ensure hydration. Cuttings were placed in plastic bags partially filled with water and stuck (planting the unrooted basal end in the substrate) the following day. Before 13 sticking, cuttings were..., foliar salt exposure and high pH soil tolerance. Experiments were conducted beginning in May, 2008 to determine commercial viability of vegetative propagation by shoot tip cuttings of these selections, to identify treatment combinations that led...

King, Andrew Richard

2012-10-19T23:59:59.000Z

424

Growing Fall Vegetables and Annuals in South Central Texas.  

E-Print Network (OSTI)

.... ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9 Emergency Procedure ....................... 20 Strawberries ............................... 10 Problems in a Fall Garden ................... 21 Grow Spring-Flowering Bulbs ................ 12 This publication wa~ compiled by Dr. Jerry Parsons... it is the middle of the summer, now is the time to start getting things in shape for a fall flower and vegetable garden. In this area of Texas, gardening can continue the year-round. It is always a tough decision to decide whether to terminate spring...

Parsons, Jerry; Cotner, Sam; Johnson, Jerral; Janne, Everett; Stewart, J. W.; Roberts, Roland; Johnson, Shirley

1979-01-01T23:59:59.000Z

425

Compact character controllers  

Science Journals Connector (OSTI)

We present methods for creating compact and efficient data-driven character controllers. Our first method identifies the essential motion data examples tailored for a given task. It enables complex yet efficient high-dimensional controllers, as well ... Keywords: data driven animation, human animation, optimal control

Yongjoon Lee; Seong Jae Lee; Zoran Popovi?

2009-12-01T23:59:59.000Z

426

(DOE/EIS-0285-SA-104): Supplement Analysis for the Transmission System Vegetation Management Program FEIS - Lynch Creek Tap to LaGrande-Cowlitz No.1 8/21/02  

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

1, 1, 2002 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-104-Lynch Creek Tap to LaGrande-Cowlitz No. 1 James A. Jellison - TFO/Olympia Natural Resource Specialist Proposed Action: Vegetation Management for the Lynch Creek to LaGrande-Cowlitz No. 1 Location: Near the town of Eatonville, Pierce County Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridor. The right-of-way will be treated using selective and non-selective methods that include hand cutting, mowing and herbicide treatments. Approximately 29 miles of access roads and corridor will be treated. Vegetation management is required

427

DOE/EIS-0285; Bonneville Power Administration Transmission System Vegetation Management Program Final Environmental Impact Statement (May 2000)  

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

Statement - Appendices Statement - Appendices DOE/EIS-0285 Arrow-leaf Balsamroot Cooperating Agencies Bonneville Power Administration Transmission System Vegetation Management Program Final Environmental Impact Statement DOE/EIS-0285 APPENDICES May 2000 Table of Contents Appendix A - Public Involvement: Publications Appendix B - Biological Weed Control Agents Appendix C - Bonneville Pesticide Applicator Certification Plan Appendix D - Sample Educational Information Appendix E - Clearance Criteria Appendix F - FS Mitigation Measures and Background Appendix G - BLM Mitigation Measures and Background Appendix H - Herbicide Fact Sheets 2,4-D Azafenidin Bromacil Chlorsulfuron Clopyralid Dicamba Dichlobenil Diuron Fosamine Ammonium Glyphosate Halosulfuron-methyl Hexazinone Imazapyr Isoxaben Mefluidide Metsulfuron-methyl

428

A Heuristic Digital Control Method for Optimal Capacitor Charging Mor Mordechai Peretz, Student Member, IEEE, and Sam Ben-Yaakov, Senior Member, IEEE  

E-Print Network (OSTI)

a frequency resolution enhancement algorithm that allows fine tuning of the drive. Excellent agreement primarily by analog circuits. For example, limiting the inrush current by sweeping the drive frequency up to the resonant frequency which is a function of the (variable) capacitor voltage. Tight frequency control

429

A method for measuring the coordinates of an asynchronous motor in a frequency-controlled electric drive of mine excavator mechanisms  

Science Journals Connector (OSTI)

This paper deals with methods for calculating the electromagnetic torque of an asynchronous motor with a square-cage rotor of the electric drive of the bucket-lifting mechanism of ... description of electromagnet...

P. A. Osipov; A. L. Karyakin

2012-09-01T23:59:59.000Z

430

Effect of Brush Vegetation on Deep Drainage Using Chloride Mass Balance  

E-Print Network (OSTI)

is comparable to that by herbaceous vegetation (Wilcox, 2005). The canopy of an average-size, mature redberry and ashe juniper can intercept 26% and 37% of the annual precipitation, respectively. Redberry and ashe juniper litter can intercept 40% and 43..., superactive, thermic Pachic Paleustolls. Dominant woody-shrub vegetation cover includes juniper (Juniperus ashei) with other existing vegetation such as little bluestem (Schizachyrium scoparium) and threeawn (Aristida). Site G4 The soil at site G4...

Navarrete Ganchozo, Ronald J.

2011-02-22T23:59:59.000Z

431

Vegetation of Upper Coastal Plain depression wetlands: Environmental templates and wetland dynamics within a landscape framework.  

SciTech Connect

Reference wetlands play an important role in efforts to protect wetlands and assess wetland condition. Because wetland vegetation integrates the influence of many ecological factors, a useful reference system would identify natural vegetation types and include models relating vegetation to important regional geomorphic, hydrologic, and geochemical properties. Across the U.S. Atlantic Coastal Plain, depression wetlands are a major hydrogeomorphic class with diverse characteristics. For 57 functional depression wetlands in the Upper Coastal Plain of South Carolina, we characterized the principal vegetation types and used a landscape framework to assess how local (wetland-level) factors and regional landscape settings potentially influence vegetation composition and dynamics. Wetland sites were stratified across three Upper Coastal Plain landscape settings that differ in soils, surface geology, topography, and land use. We sampled plant composition, measured relevant local variables, and analyzed historical transitions in vegetative cover types. Cluster analysis identified six vegetation types, ranging from open-water ponds and emergent marshes to closed forests. Significant vegetation-environment relationships suggested environmental ''templates'' for plant community development. Of all local factors examined, wetland hydrologic regime was most strongly correlated with vegetation type, but depression size, soil textural type, and disturbance history were also significant. Because hydrogeologic settings influence wetland features, local factors important to vegetation were partly predictable from landscape setting, and thus wetland types were distributed non-randomly across landscape settings. Analysis of long-term vegetation change indicated relative stability in some wetlands and succession in others. We developed a landscape-contingent model for vegetation dynamics, with hydroperiod and fire as major driving variables. The wetland classification, environmental templates, and dynamics model provide a reference framework to guide conservation priorities and suggest possible outcomes of restoration or management.

De Steven, Diane; Toner, Maureen, M.

2004-03-01T23:59:59.000Z

432

Apparatus and method for controlling the rotary airlocks in a coal processing system by reversing the motor current rotating the air lock  

DOE Patents (OSTI)

An improvement to a coal processing system where hard materials found in the coal may cause jamming of either inflow or outflow rotary airlocks, each driven by a reversible motor. The instantaneous current used by the motor is continually monitored and compared to a predetermined value. If an overcurrent condition occurs, indicating a jamming of the airlock, a controller means starts a "soft" reverse rotation of the motor thereby clearing the jamming. Three patterns of the motor reversal are provided.

Groombridge, Clifton E. (Hardin, MT)

1996-01-01T23:59:59.000Z

433

Potential of vegetable oils as a domestic heating fuel  

SciTech Connect

The dependence on imported oil for domestic heating has led to the examination of other potential fuel substitutes. One potential fuel is some form of vegetable oil, which could be a yearly-renewable fuel. In Western Canada, canola has become a major oilseed crop; in Eastern Canada, sunflowers increasingly are becoming a source for a similar oil; for this reason, the Canadian Combustion Research Laboratory (CCRL) has chosen these oils for experimentation. Trials have been conducted in a conventional warm air oil furnace, fitted with a flame retention head burner. Performance has been measured with pure vegetable oils as well as a series of blends with conventional No. 2 oil. The effects of increased fuel pressure and fuel preheating are established. Emissions of carbon monoxide, nitrogen oxides, unburned hydrocarbons and particulates are given for both steady state and cyclic operation. Canola oil cannot be fired in cyclic operation above 50:50 blends with No. 2 oil. At any level above a 10% blend, canola is difficult to burn, even with significant increased pressure and temperature. Sunflower oil is much easier to burn and can be fired as a pure fuel, but with high emissions of incomplete combustion products. An optimum blend of 50:50 sunflower in No. 2 oil yields emissions and performance similar to No. 2 oil. This blend offers potential as a means of reducing demand of imported crude oil for domestic heating systems.

Hayden, A.C.S.; Begin, E.; Palmer, C.E.

1982-06-01T23:59:59.000Z

434

Jordan Tatter Scholarship in Horticulture Sponsored by the Michigan Vegetable Council  

E-Print Network (OSTI)

Jordan Tatter Scholarship in Horticulture Sponsored by the Michigan Vegetable Council) Submit application to behe@msu.edu Summary: The Jordan Tatter Scholarship in Horticulture was initiated

435

Vegetation Dynamics and Livestock Production on Rangelands in the Southern Great Plains.  

E-Print Network (OSTI)

??We examined vegetation dynamics and livestock production in response to land management practices on rangelands in two different studies, one in north central and one… (more)

Cummings, Daniel Chad

2007-01-01T23:59:59.000Z

436

Characteristics of vegetation and its relationship with landfill gas in closed landfill  

Science Journals Connector (OSTI)

An investigation was carried out to elucidate landfill gas (LFG) and the vegetation characteristics in closed landfill. The results indicate that the stabilization process of the landfill is an important factor influencing the components of landfill gases. The coverage, height and species of vegetation increase with the closed time of landfill. Fourteen species were observed in the investigated cells, dominated by Phragmites australis, an invasive perennial plant. The concentrations of methane and carbon dioxide from vegetated cover soil were lower than those from non-vegetated cover soil.

Chai Xiaoli; Zhao Xin; Lou Ziyang; Takayuki Shimaoka; Hirofumi Nakayama; Cao Xianyan; Zhao Youcai

2011-01-01T23:59:59.000Z

437

Coastal Marsh Vegetation Dynamics of the East Bay of Galveston Bay, Texas.  

E-Print Network (OSTI)

??The structure and function of coastal marshes results from a complex interaction of biotic and abiotic processes that continually influence the characteristics of marsh vegetation.… (more)

Johnson, Jeremy Scott

2012-01-01T23:59:59.000Z

438

Vegetation and sediment characteristics of created and natural Spartina alterniflora marshes in Lower Galveston Bay, Texas.  

E-Print Network (OSTI)

??Five natural and ten created Spartina altemiflora marshes in the Lower Galveston Bay System, Texas, were compared to determine if there were significantly different vegetative… (more)

Albertson, Andrea Kai

2012-01-01T23:59:59.000Z

439

E-Print Network 3.0 - anthropogenic vegetation fires Sample Search...  

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

dust aerosols VOCsDMS ET vegetation Anthropogenic waste byproduct air quality water management... combustionfires Anthropogenic crop production oil byproduct drilling...

440

E-Print Network 3.0 - arctic vegetation types Sample Search Results  

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

Summary: Dynamic vegetation Figure 3: Evolution of regional arctic models. Geophysical ocean-sea ice... that can be adapted to focus resolution on the Arctic. Stand alone ASM...

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


441

SITE DESIGN GUIDELINES PEDESTRIAN VEHICULAR BICYCLE VEGETATION FURNISHINGS LIGHTING SIGNAGE PAVING SITEWORK PARKING  

E-Print Network (OSTI)

SITE DESIGN GUIDELINES PEDESTRIAN VEHICULAR BICYCLE VEGETATION FURNISHINGS LIGHTING SIGNAGE PAVING.7 Pedestrians .................................................................................... 3.8 Bicycles ..................................................... Section Four Bicycle Systems 4.1 Shared Roadways

Duchowski, Andrew T.

442

Effect of Collection Method and Archiving Conditions on the Survivability of Vegetative and Spore Forming Bacteria  

E-Print Network (OSTI)

Luria Bertani LPM Liter per Minute (L/min) Lr Liquid Loss Rate MS Mean Square MSResidual Mean Square Residual MSR Mean Square Residual Ratio MQ Millique Water N Number of Observations or Sample Size n Number of Replications OA Ovalbumin OD... Trg Summation of Sample Responses by Row and Column Tcg Summation of Sample Responses by Column and Group Tcr Summation of Sample Responses by Column and Row Tcrg Summation of Sample Responses by Column, Row and Group TSA Tryptic Soy...

Kassab, Asmaa S.

2010-10-12T23:59:59.000Z

443

(DOE/EIS-0285/SA 107): Supplement Analysis for the Transmission System Vegetation Management Program FEIS, Elma-Cosmopolis #1 9/5/02  

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

7, 7, Elma-Cosmopolis #1. James A. Jellison - TFO/Olympia Proposed Action: Vegetation Management along the Elma-Cosmopolis #1 115kV transmission line corridor from structure 11/7 through structure 20/3. Right of way width averages 100 feet. Location: The project area is located in Grays Harbor County, Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridors. Approximately 8 miles of right-of-way will be treated using selective and non-selective methods that include hand cutting, mowing and herbicide treatments. Approximately 2.8 miles of access roads will be cleared using selective and non-selective methods that include hand cutting, mowing and herbicide treatments. Tower sites

444

Modeling wildland fire propagation with level set methods  

Science Journals Connector (OSTI)

Level set methods are versatile and extensible techniques for general front tracking problems, including the practically important problem of predicting the advance of a fire front across expanses of surface vegetation. Given a rule, empirical or otherwise, ... Keywords: Front propagation, Hamilton-Jacobi equations, Level set methods, Multivac software, Wildland fire spread

V. Mallet; D. E. Keyes; F. E. Fendell

2009-04-01T23:59:59.000Z

445

The consequences of pleistocene climate change on lowland neotropical vegetation  

SciTech Connect

Palynological reconstructions indicate that lowland tropical America was subject to intense cooling during the last ice-age. The descent of presently montane taxa into the lowlands of Amazonia and Minas Gerais indicate temperature depressions ranging from 5[degrees]C to 9[degrees]C cooler-than-present. The strengthened incursion of southerly airmasses caused a reassortment of vegetation throughout Amazonia. Presently allopatric species are found to have been sympatric as novel forest assemblages and formed and dissolved. Modest drying, perhaps a 20% reduction in precipitation, accounts for all the records that show a Pleistocene expansion of savanna. No evidence is found to support the fragmentation of Amazonian forests during glacial times, and the hypothesis of forest refuges as an explanation of tropical speciation is rejected on empirical grounds.

De Oliveira, P.E.; Colinvaux, P.A. (Smithsonian Tropical Research Institute, Panama City (Panama))

1994-06-01T23:59:59.000Z

446

Toward a mechanistic modeling of nitrogen limitation on vegetation dynamics  

SciTech Connect

Nitrogen is a dominant regulator of vegetation dynamics, net primary production, and terrestrial carbon cycles; however, most ecosystem models use a rather simplistic relationship between leaf nitrogen content and photosynthetic capacity. Such an approach does not consider how patterns of nitrogen allocation may change with differences in light intensity, growing-season temperature and CO{sub 2} concentration. To account for this known variability in nitrogen-photosynthesis relationships, we develop a mechanistic nitrogen allocation model based on a trade-off of nitrogen allocated between growth and storage, and an optimization of nitrogen allocated among light capture, electron transport, carboxylation, and respiration. The developed model is able to predict the acclimation of photosynthetic capacity to changes in CO{sub 2} concentration, temperature, and radiation when evaluated against published data of V{sub c,max} (maximum carboxylation rate) and J{sub max} (maximum electron transport rate). A sensitivity analysis of the model for herbaceous plants, deciduous and evergreen trees implies that elevated CO{sub 2} concentrations lead to lower allocation of nitrogen to carboxylation but higher allocation to storage. Higher growing-season temperatures cause lower allocation of nitrogen to carboxylation, due to higher nitrogen requirements for light capture pigments and for storage. Lower levels of radiation have a much stronger effect on allocation of nitrogen to carboxylation for herbaceous plants than for trees, resulting from higher nitrogen requirements for light capture for herbaceous plants. As far as we know, this is the first model of complete nitrogen allocation that simultaneously considers nitrogen allocation to light capture, electron transport, carboxylation, respiration and storage, and the responses of each to altered environmental conditions. We expect this model could potentially improve our confidence in simulations of carbon-nitrogen interactions and the vegetation feedbacks to climate in Earth system models.

Xu, Chonggang [Los Alamos National Laboratory (LANL); Fisher, Rosie [National Center for Atmospheric Research (NCAR); Wullschleger, Stan D [ORNL; Wilson, Cathy [Los Alamos National Laboratory (LANL); Cai, Michael [Los Alamos National Laboratory (LANL); McDowell, Nathan [Los Alamos National Laboratory (LANL)

2012-01-01T23:59:59.000Z

447

Fruit and Vegetable Consumption and Incidence of Gastric Cancer: A Prospective Study  

Science Journals Connector (OSTI)

...and intakes of total energy, alcohol, and processed...supplement use, and consumption of red meat, poultry...suggest that frequent consumption of vegetables may reduce...to increase vegetable consumption. 1 Parkin DM, Bray...55:74-108. 2 World Cancer Research Fund...

Susanna C. Larsson; Leif Bergkvist; and Alicja Wolk

2006-10-01T23:59:59.000Z

448

A TEST FOR LIFE ON EXOPLANETS: THE TERRESTRIAL VEGETATION DETECTION IN THE EARTHSHINE SPECTRUM  

E-Print Network (OSTI)

bacteria [7]. A second type of biosignature is provided by signs of stellar light transformation the possible presence of life on this planet. Spectral biosignatures can be of two types. A first type consists of photosynthetic (green) vegetation, non­photosynthetic (dry) and a soil (from [9]). The so­called vegetation red

Lardière, Olivier

449

Vegetation-environment relationships of an inland boreal salt pan C. A. BURCHILLAND N. C. KENKEL  

E-Print Network (OSTI)

with decreasing salinity, but trends in Shannon-Weaver diversity and evenness along the salinity gradient were more complex. Despite the salinity gradient being environmentally continuous, strong vegetational, discontinuity, gradient, halophyte, plant community, salinity. BURCHILL,C. A., et KENKEL,N. C. 1991. Vegetation

Kenkel, Norm

450

Laboratory experiments and numerical modeling of wave attenuation through artificial vegetation  

E-Print Network (OSTI)

? 5.1. Introduction to COULWAVE Boussinesq Model ................................................. 51? 5.2. Numerical Modeling of Vegetation Friction Factor .............................................. 53? CHAPTER VI - CONCLUSIONS... Additionally, vegetation directly increases the durability of shorelines through the root systems and enhances the storage of sand in dunes (Dean, 1978). Until recently the importance and function of wetlands was not well understood, and the amount...

Augustin, Lauren Nicole

2009-05-15T23:59:59.000Z

451

Expansion of the world's deserts due to global warming and vegetation-albedo feedback  

E-Print Network (OSTI)

-2 in surface absorbed solar energy. Although acting on regional scale, such a large negative simulation where the vegetation-albedo feedback was allowed to influence the atmospheric energy balance-14). Vegetation feedback has also been shown to be of key importance in the drying of North Africa during

Zeng, Ning

452

Effects of forestry practices on vegetation structure and bird community of Kibale National Park, Uganda  

E-Print Network (OSTI)

, Uganda Cagan H. Sekercioglu* Center for Conservation Biology, Department of Biological Sciences, Stanford on the vegetation structure and bird community of Kibale National Park, Uganda. I compared four forest treatments Ltd. All rights reserved. Keywords: Uganda; Tropical forestry; Selective logging; Vegetation structure

Sekercioglu, Cagan Hakki

453

Nutrient release from combustion residues of two contrasting herbaceous vegetation types  

E-Print Network (OSTI)

(muffle and flame burning) to combust herbaceous biomass from contrasting nutrient level sites to estimate caused by a fire is the combustion and charring of vegetation. Both C and N contained in plant biomassNutrient release from combustion residues of two contrasting herbaceous vegetation types Benjamin A

Florida, University of

454

Vegetables, Fruit, and Lung Cancer in the Iowa Women's Health Study  

Science Journals Connector (OSTI)

...65-69, 70-74), total energy (quartile), education...ginger, kelp and seaweeds Dark green leafy vegetables...0-118.5 118.6 Dark green leafy vegetables...Q2 Q3 Q4 (high) Total energy, kcal Male (M) 2157...in Japan. Analysis of survey data on incidence in Aomori...

Kristi A. Steinmetz; John D. Potter; and Aaron R. Folsom

1993-02-01T23:59:59.000Z

455

COMPUTER SUPPORTED KNOWLEDGE DISCOVERY --A CASE STUDY IN FLOW RESISTANCE INDUCED BY VEGETATION  

E-Print Network (OSTI)

COMPUTER SUPPORTED KNOWLEDGE DISCOVERY -- A CASE STUDY IN FLOW RESISTANCE INDUCED BY VEGETATION). The paper firstly outlines elementary data mining principles, particularly when applied to analysis related to the additional resistance to the flow induced by flexible vegetation are presented. The data

Fernandez, Thomas

456

Development of fireside performance indices, Task 7.33, Development of methods to predict agglomeration and deposition in FBCS, Task 7.36, Enhanced air toxics control, Task 7.45  

SciTech Connect

The Energy & Environmental Research Center (EERC) has been developing advanced indices that rank coals according to their fouling and slagging propensity in utility boilers. The indices are based on sophisticated analytical techniques for identifying and quantifying coal inorganics and are useful in predicting the effects of proposed operational changes on ash deposition in coal-fired boilers. These indices are intended to provide an economical way to reduce the amount of full-scale testing needed to determine the best means of minimizing ash-related problems. The successful design and operation of the fluidized-bed combustor requires the ability to control and mitigate ash-related problems. The major ash-related problems in FBC are agglomeration of bed material, ash deposition on heat-transfer surfaces, ash deposition on refractory and uncooled surfaces, corrosion, and erosion. The focus of the Development of Methods to Predict Agglomeration and Deposition in FBCs is on the agglomeration and deposition problems in atmospheric bubbling and circulating beds. The 1990 Clean Air Act Amendments require study of air toxic emissions from coal combustion systems. Since most of the toxic metals present in coal will be in particulate form, a high level of fine-particle control appears to be the best approach to achieving a high level of air toxics control. However, over 50% of mercury and a portion of selenium emissions are in vapor form and are not typically collected in particulate control devices. Therefore, the goal of this project is to develop methods that capture the vapor-phase metals while simultaneously achieving ultrahigh collection efficiency of particulate air toxics.

Zygarlicke, C.J.; Mann, M.D.; Laudal, D.L.; Miller, S.J.

1994-01-01T23:59:59.000Z

457

Control of retention and fatigue-free characteristics in CaBi{sub 4}Ti{sub 4}O{sub 15} thin films prepared by chemical method  

SciTech Connect

Ferroelectric CaBi{sub 4}Ti{sub 4}O{sub 15} (CBTi144) thin films were deposited on Pt/Ti/SiO{sub 2}/Si substrates by the polymeric precursor method. The films present a single phase of layered-structured perovskite with polar axis orientation after annealing at 700 deg. C for 2 h in static air and oxygen atmosphere. The a/b-axis orientation of the ferroelectric film is considered to be associated with the preferred orientation of the Pt bottom electrode. It is noted that the films annealed in static air showed good polarization fatigue characteristics at least up to 10{sup 10} bipolar pulse cycles and excellent retention properties up to 10{sup 4} s. On the other hand, oxygen atmosphere seems to be crucial in the decrease of both, fatigue and retention characteristics of the capacitors. Independently of the applied electric field, the retained switchable polarization approached a nearly steady-state value after a retention time of 10 s. - Graphical abstract: Fatigue of CBTi144 thin film obtained by polymeric precursor method.

Simoes, A.Z. [Chemistry Institute, Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni s/n, 14801-970 Araraquara-SP (Brazil)]. E-mail: alezipo@yahoo.com; Ramirez, M.A. [Chemistry Institute, Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni s/n, 14801-970 Araraquara-SP (Brazil); Gonzalez, A.H.M. [Chemistry Institute, Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni s/n, 14801-970 Araraquara-SP (Brazil); Riccardi, C.S. [Chemistry Institute, Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni s/n, 14801-970 Araraquara-SP (Brazil); Ries, A. [Chemistry Institute, Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni s/n, 14801-970 Araraquara-SP (Brazil); Longo, E. [Chemistry Institute, Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni s/n, 14801-970 Araraquara-SP (Brazil); Varela, J.A. [Chemistry Institute, Universidade Estadual Paulista (UNESP), Rua Prof. Francisco Degni s/n, 14801-970 Araraquara-SP (Brazil)

2006-07-15T23:59:59.000Z

458

Grasshoppers and Their Control  

E-Print Network (OSTI)

. Conventional insecticides labeled (L) for grasshopper control in field crops.* Trade names Alfalfa Corn a Cotton Peanuts Small grains b Sorghum Soybeans Sunflowers Vegetables c Asana XL L L L L L L L Baythroid 2 L L L L L Capture 2 EC L L Dimethoate d LL L LL L... Di-Syston 15 G L L Furadan 4F L L L L Fury L L L L L L Guthion 2 L L Guthion Solupak 50 WP L Imidan 70 W L L L Karate (Zeon Tech) L L L Leverage 2.7 L Lorsban 4E-SG L Lorsban 75 WG L L L L L L Lorsban 4 E L L L L Malathion ULV e LLL f LL Malthion 8...

Patrick, Carl D.

2004-06-16T23:59:59.000Z

459

Effect of solvents on morphologies of PbTe nanostructures: Controllable synthesis of hollow and solid PbTe nanocubes by a solvothermal method  

SciTech Connect

We demonstrate a facile solvothermal route to grow hollow and solid PbTe nanocubes. The hollow PbTe nanocubes were successfully achieved when EtOH was used as solvent in the presence of nonionic polymer PEG, while the solid PbTe nanocubes were obtained when EG was used as solvent in the presence of PEG, whilst keeping the other experimental conditions constant. The results indicate that the solvents used in reaction system play a key role to determine the interior structure of PbTe nanocubes. On the basis of the experimental results and analysis, a possible growth mechanism has been discussed in detail for the hollow and solid PbTe nanocubes. - Graphical abstract: A facile solution-phase route has been developed to synthesize hollow and solid PbTe nanocubes. The possible growth mechanism of hollow and solid PbTe nanocubes was discussed in detail. Highlights: Black-Right-Pointing-Pointer A facile controllable route was described for hollow and solid PbTe nanocubes. Black-Right-Pointing-Pointer The hollow PbTe nanocubes were achieved using EtOH as solvent. Black-Right-Pointing-Pointer The solid PbTe nanocubes were obtained using EG as solvent. Black-Right-Pointing-Pointer The solvent played a key role for the formation of hollow and solid PbTe nanocubes.

Wang Wenzhong, E-mail: wzhwang@aphy.iphy.ac.cn [School of Science, Minzu University of China, Beijing 100081 (China); Wang Lijuan [School of Science, Minzu University of China, Beijing 100081 (China); Zhou Qing [College of Science, Guizhou University, Guiyang 550025 (China)

2012-04-15T23:59:59.000Z

460

Synthesis and characterization of anatase TiO{sub 2} nanotubes with controllable crystal size by a simple MWCNT template method  

SciTech Connect

Highly crystalline phase-pure anatase TiO{sub 2} nanotubes were produced by performing a simple calcinations process in air of the TiO{sub 2} coated MWCNTs composite material prepared by an in situ sol-gel method. A homogeneous thin coating layer of TiO{sub 2} on the surface of MWCNTs is firstly obtained. Calcination in ambient air at appropriate temperatures is performed to transform phase of TiO{sub 2} into anatase and remove MWCNTs simultaneously, resulting in pure anatase TiO{sub 2} nanotubes. Both end tips of the nanotubes are observed to be closed, probably due to covering up MWCNTs with TiO{sub 2} particles. The crystallization of anatase phase was formed upon 350 Degree-Sign C, and MWCNTs are completely oxidized between 500 and 650 Degree-Sign C, leaving anatase TiO{sub 2} nanotubes with an average crystal size increasing from about 8 to 24 nm as the temperature rises. Moreover, the tubular structure was found to collapse after calcinations at 700 Degree-Sign C. - Graphical abstract: TGA analysis and TEM images of the samples after calcinations in air at different temperatures: (a) before calcinations, (b) 350 Degree-Sign C, (c) 500 Degree-Sign C, and (d) 650 Degree-Sign C. Highlights: Black-Right-Pointing-Pointer Highly crystalline and stable phase-pure anatase TiO{sub 2} nanotubes were produced by a simply MWCNT template method. Black-Right-Pointing-Pointer A homogeneous thin coating layer of TiO{sub 2} on the surface of MWCNTs could be obtained. Black-Right-Pointing-Pointer Small crystal size of anatase is formed at lower temperatures and higher temperatures cause significant increase of crystal size from 8 to 24 nm. Black-Right-Pointing-Pointer Convex closed tip structure of TiO{sub 2} nanotubes is formed owing to the good coating of TiO{sub 2}.

Kim, Ju Hyung; Zhang, Xiao Hui; Kim, Jae Deuk [Future Industry R and D Center, DH Holdings Co., LTD, 705-32 Yeoksam-Dong, Kangnam-Gu, Seoul 135-080 (Korea, Republic of)] [Future Industry R and D Center, DH Holdings Co., LTD, 705-32 Yeoksam-Dong, Kangnam-Gu, Seoul 135-080 (Korea, Republic of); Park, Hoon Mo [Research and Development Division, Hyundai Motors, 460-30 Sam-dong, Uiwang-si, Gyeongg do 437-815 (Korea, Republic of)] [Research and Development Division, Hyundai Motors, 460-30 Sam-dong, Uiwang-si, Gyeongg do 437-815 (Korea, Republic of); Lee, Sang Bok; Yi, Jin Woo [Composite Materials Research Group, Korea Institute of Materials Science, 797 Changwondaero, Seongsna-gu, Changwon 641-831 (Korea, Republic of)] [Composite Materials Research Group, Korea Institute of Materials Science, 797 Changwondaero, Seongsna-gu, Changwon 641-831 (Korea, Republic of); Jung, Seung Il, E-mail: sijung@donghee.co.kr [Future Industry R and D Center, DH Holdings Co., LTD, 705-32 Yeoksam-Dong, Kangnam-Gu, Seoul 135-080 (Korea, Republic of)

2012-12-15T23:59:59.000Z

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


461

Vegetation dynamics and exotic plant invasion following high severity crown fire in a southern California conifer forest  

Science Journals Connector (OSTI)

Early post-fire vegetation dynamics following large, severe forest fires are largely unknown for the southern ... to historic fire suppression. Vegetation in 38 forest stands was surveyed (2004, 2005, and...2 qua...

Janet Franklin

2010-04-01T23:59:59.000Z

462

Changes in Connecticut salt-marsh vegetation as revealed by historical aerial photographs and computer-assisted cartographics  

Science Journals Connector (OSTI)

Procedures are discussed for the interpretation of historical aerial photographs for salt-marsh vegetation mapping, as are techniques for computer-assisted analysis of digital vegetation maps. The mappings ind...

Daniel L. Civco; William C. Kennard; Michael W. Lefor

1986-01-01T23:59:59.000Z

463

Investigation of the effect of a circular patch of vegetation on turbulence generation and sediment deposition using four case studies  

E-Print Network (OSTI)

This study describes the spatial distribution of sediment deposition in the wake of a circular patch of model vegetation and the effect of the patch on turbulence and mean flow. Two difference types pf vegetation were used ...

Ortiz, Alejandra C

2012-01-01T23:59:59.000Z

464

The impact of cattle grazing on salt marsh and elevated hummock vegetation communities of a Texas barrier island  

E-Print Network (OSTI)

To assess the effects of cattle herbivory on vegetation community structure and composition in a Texas coastal salt marsh, data measuring several vegetation parameters were collected in four distinct habitats within a heavily grazed marsh over...

Carothers, James Michael

2012-06-07T23:59:59.000Z

465

Variety in Fruit and Vegetable Consumption and the Risk of Lung Cancer in the European Prospective Investigation into Cancer and Nutrition  

Science Journals Connector (OSTI)

...Vegetable and fruit consumption has been hypothesized...cancer risk. The 2007 World Cancer Research Fund...vegetable and fruit consumption and energy intake increased with...fruit and vegetable consumption. Those reporting higher...

Frederike L. Büchner; H. Bas Bueno-de-Mesquita; Martine M. Ros; Kim Overvad; Christina C. Dahm; Louise Hansen; Anne Tjřnneland; Françoise Clavel-Chapelon; Marie-Christine Boutron-Ruault; Marina Touillaud; Rudolf Kaaks; Sabine Rohrmann; Heiner Boeing; Ute Nöthlings; Antonia Trichopoulou; Dimosthenis Zylis; Vardis Dilis; Domenico Palli; Sabina Sieri; Paolo Vineis; Rosario Tumino; Salvatore Panico; Petra H.M. Peeters; Carla H. van Gils; Eiliv Lund; Inger T. Gram; Tonje Braaten; María-José Sánchez; Antonio Agudo; Nerea Larrańaga; Eva Ardanaz; Carmen Navarro; Marcial V. Argüelles; Jonas Manjer; Elisabet Wirfält; Göran Hallmans; Torgny Rasmuson; Tim J. Key; Kay-Tee Khaw; Nick Wareham; Nadia Slimani; Anne-Claire Vergnaud; Wei W. Xun; Lambertus A.L.M. Kiemeney; and Elio Riboli

2010-09-01T23:59:59.000Z

466

Automatic Control Technology in the HVAC System  

Science Journals Connector (OSTI)

In the field of VAV air-conditioning system (Variable Air Volume, VAV) control theory and practical study, the paper analyzed the methods used by the China's VAV control procedures including Static Pressure Control, Variable Pressure Control and Total ...

Ren Tao; Gao Jingmin; Jia Wenwen

2009-01-01T23:59:59.000Z

467

Field testing of paper/polymerized vegetable oil mulches for enhancing growth of eastern cottonwood trees for pulp  

Science Journals Connector (OSTI)

Field studies of biodegradable polymerized vegetable oil-coated paper mulches were conducted to determine if these could replace non-degradable polyethylene mulches for stopping weeds and promoting growth of cottonwood trees. Tests were conducted over two growing seasons in two adjacent field sites in southeastern Missouri. At the end of the 2001 season, eastern cottonwood trees grown on the coated paper mulches had average heights (4.57–4.66 m, 15.0–15.3 ft), which were not significantly different from the control black polyethylene mulch (4.75 m, 15.6 ft). Tree heights were significantly less for uncoated paper mulch (4.45 m, 14.6 ft) or no mulch (3.90 m, 12.8 ft), presumably due to heavy weed growth around the trees. Uncoated paper mulch was extensively degraded after only about 4 weeks, while the coated paper persisted until the fall. Addition of ZnO to the oil coating delayed the onset of visible degradation, such as the formation of holes and tears, especially near the buried edge and above the drip tube. Similar results were seen for the 2002 study except that weed growth was not extensive so that tree heights for the mulched and bare plots were not significantly different. These results suggest that polymerized vegetable oil-coated paper mulches can function as effective mulches during the first year of tree growth, and thus, eliminate the need to use non-degradable polyethylene mulches.

Randal L. Shogren; Randall J. Rousseau

2005-01-01T23:59:59.000Z

468

Effects of various uranium leaching procedures on soil: Short-term vegetation growth and physiology. Progress report, April 1994  

SciTech Connect

Significant volumes of soil containing elevated levels of uranium exist in the eastern United States. The contamination resulted from the development of the nuclear industry in the United States requiring a large variety of uranium products. The contaminated soil poses a collection and disposal problem of a magnitude that justifies the development of decontamination methods. Consequently, the Department of Energy (DOE) Office of Technology Development formed the Uranium Soils Integrated Demonstration (USID) program to address the problem. The fundamental goal of the USID task group has been the selective extraction/leaching or removal of uranium from soil faster, cheaper, and safer than what can be done using current conventional technologies. The objective is to selectively remove uranium from soil without seriously degrading the soil`s physicochemical characteristics and without generating waste that is difficult to manage and/or dispose of. However, procedures developed for removing uranium from contaminated soil have involved harsh chemical treatments that affect the physicochemical properties of the soil. The questions are (1) are the changes in soil properties severe enough to destroy the soil`s capacity to support and sustain vegetation growth and survival? and (2) what amendments might be made to the leached soil to return it to a reasonable vegetation production capacity? This study examines the vegetation-support capacity of soil that had been chemically leached to remove uranium. The approach is to conduct short-term germination and phytotoxicity tests for evaluating soils after they are subjected to various leaching procedures followed by longer term pot studies on successfully leached soils that show the greatest capacity to support plant growth. This report details the results from germination and short-term phytotoxicity testing of soils that underwent a variety of leaching procedures at the bench scale at ORNL and at the pilot plant at Fernald.

Edwards, N.T.

1994-08-01T23:59:59.000Z

469

Record of Decision for the Transmission System Vegetation Management Program (DOE/EIS-0285) (07/00)  

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

SYSTEM VEGETATION SYSTEM VEGETATION MANAGEMENT PROGRAM Record of Decision DOE/EIS-0285 Cooperating Agencies J U L Y 2 0 0 0 Bonneville Power Administration Transmission System Vegetation Management Program Record of Decision Table of Contents Summary of Decision .................................................................................................................................... 1 For Further Information .............................................................................................................................. 2 Background ................................................................................................................................................... 3 Decisions ........................................................................................................................................................

470

Organic Vegetable Organic Vegetable  

E-Print Network (OSTI)

marketed separately from conventionally grown produce in order to be profitably sold. Because of the amount of organic material include compost, Purdue University · Cooperative Extension Service · Knowledge to Go

471

Towards a theory of ecotone resilience: Coastal vegetation on a salinity gradient  

Science Journals Connector (OSTI)

Ecotones represent locations where vegetation change is likely to occur as a result of climate and other environmental changes. Using a model of an ecotone vulnerable to such future changes, we estimated the resilience of the ecotone to disturbances. The specific ecotone is that between two different vegetation types, salinity-tolerant and salinity-intolerant, along a gradient in groundwater salinity. In the case studied, each vegetation type, through soil feedback loops, promoted local soil salinity levels that favor itself in competition with the other type. Bifurcation analysis was used to study the system of equations for the two vegetation types and soil salinity. Alternative stable equilibria, one for salinity-tolerant and one for salinity intolerant vegetation, were shown to exist over a region of the groundwater salinity gradient, bounded by two bifurcation points. This region was shown to depend sensitively on parameters such as the rate of upward infiltration of salinity from groundwater into the soil due to evaporation. We showed also that increasing diffusion rates of vegetation can lead to shrinkage of the range between the two bifurcation points. Sharp ecotones are typical of salt-tolerant vegetation (mangroves) near the coastline and salt-intolerant vegetation inland, even though the underlying elevation and groundwater salinity change very gradually. A disturbance such as an input of salinity to the soil from a storm surge could upset this stable boundary, leading to a regime shift of salinity-tolerant vegetation inland. We showed, however, that, for our model as least, a simple pulse disturbance would not be sufficient; the salinity would have to be held at a high level, as a ‘press’, for some time. The approach used here should be generalizable to study the resilience of a variety of ecotones to disturbances.

Jiang Jiang; Daozhou Gao; Donald L. DeAngelis

2012-01-01T23:59:59.000Z

472

Organic Vegetable Gardening1 James M. Stephens2  

E-Print Network (OSTI)

"conventional" gardening mainly in the areas of fertilization and pest control. The organic gardener prefers, compost, or mixed organic fertilizer. Benefits

Jawitz, James W.

473

(DOE/EIS-0285/SA 108): Supplement Analysis for the Transmission System Vegetation Management Program FEIS Satsop-Aberdeen #2 9/5/02  

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

8, 8, Satsop-Aberdeen #2. James A. Jellison - TFO/Olympia Proposed Action: Vegetation Management along the Satsop-Aberdeen #2 230kV transmission line corridor from structure 1/1 through structure 11/5 (reference line). Other lines which are present in the proposed corridor are the Satsop-Aberdeen #3 230 kV, South Elma-Cosmopolis 115kV, and Aberdeen tap to South Elma-Cosmospolis 115kV. Right of way width averages 238 feet. Location: The project area is located in Grays Harbor County, Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of- way, access roads and around tower structures along the subject transmission line corridors. Approximately 11 miles of right-of-way will be treated using selective and non-selective methods that include hand cutting, mowing and herbicide

474

Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA 106 SnoKing Tap to Monroe-Samamish Line 9/30/02  

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

30, 30, 2002 REPLY TO ATTN OF: KEP-4 SUBJECT: Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA 106 SnoKing Tap to Monroe-Samamish Line Don Atkinson - TFN/Snohomish Proposed Action: Vegetation Management along the SnoKing Tap to the Monroe-Samamish transmission line from structure 8/1 through structure 20/6. Right of way width is 150 feet. Location: The project area is located within Snohomish County, Washington. Proposed by: Bonneville Power Administration (BPA). Description of the Proposal: BPA proposes to remove unwanted vegetation along the right-of-way, access roads and around tower structures along the subject transmission line corridor. The right-of-way will be treated using selective and non-selective methods that include hand cutting, mowing and herbicide treatments. Approximately 12 miles of access roads

475

(DOE/EIS-0285/SA-46): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 2/27/02  

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

6) 6) William T. Erickson - TFP/Walla Walla Natural Resource Specialist Proposed Action: Franklin County noxious weed management along BPA rights-of-ways, transmission structures, roads, and switches listed in Attachment 1. Attachment 1 identifies the ROW, ROW width, and ROW length of the proposed action. Includes all BPA 115kV, 230kV, and 500 kV ROWs in Franklin County, Washington. Location: The ROWs are all located in Franklin County, Washington in the Walla Walla Region. Proposed by: Bonneville Power Administration (BPA). Description of the Proposed Action: BPA proposes to clear noxious and/or unwanted low-growing vegetation in all BPA ROWs in Franklin County, Washington. In a cooperative effort, BPA, through landowners and the Franklin County Weed Control Board, plan to eradicate noxious plants and other

476

(DOE/EIS-0285/SA-45): Supplement Analysis for the Transmission System Vegetation Management Program FEIS 2/27/02  

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

5) 5) William T. Erickson - TFP/Walla Walla Natural Resource Specialist Proposed Action: Benton County noxious weed management along BPA rights-of-ways, transmission structures, roads, and switches listed in Attachment 1. Attachment 1 identifies the ROW, ROW width, and ROW length of the proposed action. Includes all BPA 115kV, 230kV, 345kV and 500 kV ROWs in Benton County, Washington. Location: The ROWs are all located in Benton County, Washington, Walla Walla Region. Proposed by: Bonneville Power Administration (BPA). Description of the Proposed Action: BPA proposes to clear noxious and/or unwanted low-growing vegetation in all BPA ROWs in Benton County, Washington. In a cooperative effort, BPA, through landowners and the Benton County Weed Control Board, plan to eradicate noxious plants and other

477

Patch mosaic of developmental stages in central European natural forests along vegetation gradient  

Science Journals Connector (OSTI)

Abstract The shifting mosaic of patches in different phases of forest development is a widely used framework for describing stand dynamics, structure and biodiversity in European temperate forests. In spite of the common application of patch mapping of developmental stages/phases, an objective and quantified evaluation of patch mosaics has been missing. This approach identifies patches of forest stand according to a developmental trajectory, from Growth, through an Optimum stage to Breakdown. Here we present the first attempt to compare quantitative and qualitative characteristics of patch mosaics of stand developmental stages using three decades of extensive data in five study sites along a vegetation gradient. We do this using the same, observer independent method based on an artificial neural network classifier. We also used the historical stem position datasets to evaluate the change of mosaic characteristics in time. Resulting patch patterns were analyzed by standard mosaic metrics commonly used in landscape ecology, evaluating area, shape, aggregation and connectivity of patches. The mean patch size of the mosaic of four developmental stages showed a relatively narrow range of 570–800 m2 in all study sites and censuses. The shape of patches in all sites and years had no significant differences, and the aggregation of patches of the same type was similar in all sites at the mosaic level. Conversely, we did find some stage-specific patterns. For example, the Growth stage was usually the most abundant (covering 25–50% of the stand), and had the highest mean patch size, ranging between 590 and 2800 m2. The Growth stage patches also had the most complex shapes. On the contrary, the Breakdown stage usually had the opposite values, forming constantly small (250–720 m2), simple and scattered patches in the mosaic. These basic traits were found in all study sites and were stable in time. We also found some common trends in the dataset, such as increasing mean patch size of the Breakdown stage along the altitudinal vegetation gradient. The complex Steady State stage was generally more abundant than expected according to results of other studies and thus might indicate processes that have not been well described in previous, subjective, applications of the patch mosaic paradigm.

Kamil Král; Sean M. McMahon; David Janík; Dušan Adam; Tomáš Vrška

2014-01-01T23:59:59.000Z

478

EA-1863: Vegetation Management on the Glen Canyon-Pinnacle Peak  

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

63: Vegetation Management on the Glen Canyon-Pinnacle Peak 63: Vegetation Management on the Glen Canyon-Pinnacle Peak Transmission Lines Spanning the Coconino National Forest, Coconino County, Arizona EA-1863: Vegetation Management on the Glen Canyon-Pinnacle Peak Transmission Lines Spanning the Coconino National Forest, Coconino County, Arizona Summary DOE's Western Area Power Administration is preparing this EA to evaluate the environmental impacts of updating the vegetation management and right-of-way maintenance program for Western's Glen Canyon to Pinnacle Peak 345-kV transmission lines, which cross the Coconino National Forest, Coconino County, Arizona. For more information on this EA, contact: Ms. Linette King at: lking@wapa.gov. Public Comment Opportunities No public comment opportunities available at this time.

479

Carbon Dioxide Emissions From Vegetation-Kill Zones Around The Resurgent  

Open Energy Info (EERE)

Dioxide Emissions From Vegetation-Kill Zones Around The Resurgent Dioxide Emissions From Vegetation-Kill Zones Around The Resurgent Dome Of Long Valley Caldera, Eastern California, Usa Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Carbon Dioxide Emissions From Vegetation-Kill Zones Around The Resurgent Dome Of Long Valley Caldera, Eastern California, Usa Details Activities (2) Areas (1) Regions (0) Abstract: A survey of diffuse CO2 efflux, soil temperature and soil-gas chemistry over areas of localized vegetation-kill on and around the resurgent dome of Long Valley caldera California was performed to evaluate the premise that gaseous and thermal anomalies are related to renewed intrusion of magma. Some kill sites are long-lived features and others have developed in the past few years. Total anomalous CO2 emissions from the

480

Microsoft Word - Changes in Vegetation at the Monticello df.doc  

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

Changes in Vegetation at the Monticello, Utah, Disposal Site Changes in Vegetation at the Monticello, Utah, Disposal Site Linda Sheader and Marilyn Kastens The Monticello Disposal Site, located just south of the town of Monticello, Utah, contains a uranium mill tailings disposal cell with a vegetated cover. Successful long-term performance of the cover is in part dependent upon the success of the cover's plantings. The plants remove moisture from the cover's soil layer, thus minimizing percolation through the tailings and preventing leaching of contaminants from the tailings into groundwater. Since 2000, when revegetation was complete, annual monitoring has been conducted at the site to track the development of the plant communities and to compare them to final success criteria. This paper summarizes changes in vegetation across the site over seven growing seasons.

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481

EA-1863: Vegetation Management on the Glen Canyon-Pinnacle Peak  

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

3: Vegetation Management on the Glen Canyon-Pinnacle Peak 3: Vegetation Management on the Glen Canyon-Pinnacle Peak Transmission Lines Spanning the Coconino National Forest, Coconino County, Arizona EA-1863: Vegetation Management on the Glen Canyon-Pinnacle Peak Transmission Lines Spanning the Coconino National Forest, Coconino County, Arizona Summary DOE's Western Area Power Administration is preparing this EA to evaluate the environmental impacts of updating the vegetation management and right-of-way maintenance program for Western's Glen Canyon to Pinnacle Peak 345-kV transmission lines, which cross the Coconino National Forest, Coconino County, Arizona. For more information on this EA, contact: Ms. Linette King at: lking@wapa.gov. Public Comment Opportunities No public comment opportunities available at this time.

482

Effects of dynamic vegetation and topography on hydrological processes in semi-arid areas  

E-Print Network (OSTI)

Ecosystems of dry climates represent a particularly interesting object for ecohydrological studies, as water is generally considered to be the key limiting resource. This work focuses on vegetation-water-energy dynamics ...

Ivanov, Valeri Yuryevich, 1974-

2006-01-01T23:59:59.000Z

483

VEGETATION SUCCESSION AND ROOT PENETRATION ON THE LORRAINE COVER USED TO LIMIT ACID MINE DRAINAGE  

E-Print Network (OSTI)

1 VEGETATION SUCCESSION AND ROOT PENETRATION ON THE LORRAINE COVER USED TO LIMIT ACID MINE DRAINAGE as a fine-grained soil) can be low enough to limit the influx of oxygen, hence reducing the rate

Aubertin, Michel

484

Vegetative composition and community structure associated with beaver ponds in Canaan valley, West Virginia, USA  

Science Journals Connector (OSTI)

Beavers (Castor canadensis...) can cause dramatic changes in vegetative composition and diversity. Although alterations by beaver have been studied extensively, little attention has been paid to the effects beave...

Jerri L. Bonner; James T. Anderson; James S. Rentch…

2009-10-01T23:59:59.000Z

485

Assessing general relationships between aboveground biomass and vegetation structure parameters for improved carbon  

E-Print Network (OSTI)

Click Here for Full Article Assessing general relationships between aboveground biomass 2010; published 23 June 2010. [1] Lidarbased aboveground biomass is derived based on the empirical relationship between lidarmeasured vegetation height and aboveground biomass, often leading to large

Ni-Meister, Wenge

486

The effects of nutrition education on attitudes and behaviors of children regarding fruits and vegetables  

E-Print Network (OSTI)

curriculum has improved nutritional knowledge, attitudes, and behaviors regarding fruits and vegetables. One hundred and thirty - five students, representing ages five through twelve, approximately grades three through five, from four counties across...

Koch, Sharon Elaine, 1976-

2001-01-01T23:59:59.000Z

487

Composition and relative health of remnant vegetation fringing lakes along a salinity and waterlogging gradient  

Science Journals Connector (OSTI)

Groundwater salinity for the vegetation quadrats was approximated using ... E in the offline system. Using ArcGIS, salinity transects were created between the well locations where samples were taken and a salinity

T. K. Horsnell; K. R. J. Smettem; D. A. Reynolds…

2009-10-01T23:59:59.000Z

488

Thermal Imaging of Vegetation to Detect CO2 Gas Leaking From Underground  

Science Journals Connector (OSTI)

Thermal imaging of vegetation has been used to detect CO2 gas leaking from an underground gas reservoir. Plant stress caused by increased soil gas concentration results in warmer...

Shaw, Joseph A; Johnson, Jennifer E; Lawrence, Rick; Nugent, Paul W

489

SPECIAL FEATURE: ECOINFORMATICS The Global Index of Vegetation-Plot Databases (GIVD)  

E-Print Network (OSTI)

resource for vegetation science J ¨urgen Dengler, Florian Jansen, Falko Gl ¨ockler, Robert K. Peet, Miquel, Ohnhorststr. 18, 22609 Hamburg, Germany Jansen, F. (jansen@uni-greifswald.de) & Gl ¨ockler, F. (falko

Peet, Robert K.

490

Improvement in fresh fruit and vegetable logistics quality: berry logistics field studies  

Science Journals Connector (OSTI)

...environment compiled and edited by Paul Tucker and James DeBonis Improvement in fresh fruit and vegetable logistics quality: berry logistics field studies M. Cecilia do Nascimento Nunes 1 Mike Nicometo 3 Jean Pierre Emond 4 Ricardo Badia Melis...

2014-01-01T23:59:59.000Z

491

Improvement in fresh fruit and vegetable logistics quality: berry logistics field studies  

Science Journals Connector (OSTI)

...Articles 1003 168 Theme Issue Intelligent food logistics: decrease waste and improve quality by new technologies...Lang Improvement in fresh fruit and vegetable logistics quality: berry logistics field studies M. Cecilia do Nascimento Nunes...

2014-01-01T23:59:59.000Z

492

Coastal Marsh Vegetation Assemblages of Galveston Bay: Insights for the East Texas Chenier Plain  

Science Journals Connector (OSTI)

Coastal marshes are composed of distinct vegetation assemblages that contribute to ecosystem functions and services over time and space. In recent decades, natural and anthropogenic changes have led to large-scal...

Jeremy S. Johnson; David M. Cairns; Chris Houser

2013-10-01T23:59:59.000Z

493

Vegetation, soils, and surface hydrology of playa landforms in the Rio Grande Plains, Texas  

E-Print Network (OSTI)

Playas in the Rio Grande Plains of southern Texas were compared with respect to their: 1) size, shape, soil properties, and microtopography, 2) vegetation composition and structure, 3) surface water accumulation potential, and 4) disturbance history...

Farley, Andrea Lee

2012-06-07T23:59:59.000Z

494

E-Print Network 3.0 - arctic vegetation amplify Sample Search...  

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

Y N C H E T A L . 2001 American Meteorological Society Summary: vegetation, permafrost, soil, and the atmo- sphere to amplify ecosystem change. MacDonald et al. (1993... the...

495

Expansion of the world's deserts due to vegetation-albedo feedback under global warming  

E-Print Network (OSTI)

to a decrease of about 20 W mĂ?2 in surface absorbed solar energy. Although acting on regional scale., 1999]. Vegetation feedback has also been shown to be of key importance in the drying of North Africa

Zeng, Ning

496