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Note: This page contains sample records for the topic "vis cous rotary" 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

Couse/Tenmile Creeks Watershed Project Implementation : 2007 Conservtion Projects. [2007 Habitat Projects Completed].  

SciTech Connect (OSTI)

The Asotin County Conservation District (ACCD) is the primary entity coordinating habitat projects on private lands within Asotin County watersheds. The Tenmile Creek watershed is a 42 square mile tributary to the Snake River, located between Asotin Creek and the Grande Ronde River. Couse Creek watershed is a 24 square mile tributary to the Snake River, located between Tenmile Creek and the Grande Ronde River. Both watersheds are almost exclusively under private ownership. The Washington Department of Fish and Wildlife has documented wild steelhead and rainbow/redband trout spawning and rearing in Tenmile Creek and Couse Creek. The project also provides Best Management Practice (BMP) implementation throughout Asotin County, but the primary focus is for the Couse and Tenmile Creek watersheds. The ACCD has been working with landowners, Bonneville Power Administration (BPA), Washington State Conservation Commission (WCC), Natural Resource Conservation Service (NRCS), Farm Service Agency (FSA), Salmon Recovery Funding Board (SRFB), Washington Department of Fish and Wildlife (WDFW), U.S. Forest Service, Pomeroy Ranger District (USFS), Nez Perce Tribe (NPT), Washington Department of Ecology (DOE), National Marine Fisheries Service (NOAA Fisheries), and U.S. Fish and Wildlife Service (USFWS) to address habitat projects in Asotin County. The Asotin Subbasin Plan identified priority areas and actions for ESA listed streams within Asotin County. Couse Creek and Tenmile Creek are identified as protection areas in the plan. The Conservation Reserve Enhancement Program (CREP) has been successful in working with landowners to protect riparian areas throughout Asotin County. Funding from BPA and other agencies has also been instrumental in protecting streams throughout Asotin County by utilizing the ridge top to ridge top approach.

Asotin County Conservation District

2008-12-10T23:59:59.000Z

2

Rotary filtration system  

DOE Patents [OSTI]

A rotary filtration apparatus for filtering a feed fluid into permeate is provided. The rotary filtration apparatus includes a container that has a feed fluid inlet. A shaft is at least partially disposed in the container and has a passageway for the transport of permeate. A disk stack made of a plurality of filtration disks is mounted onto the shaft so that rotation of the shaft causes rotation of the filtration disks. The filtration disks may be made of steel components and may be welded together. The shaft may penetrate a filtering section of the container at a single location. The rotary filtration apparatus may also incorporate a bellows seal to prevent leakage along the shaft, and an around the shaft union rotary joint to allow for removal of permeate. Various components of the rotary filtration apparatus may be removed as a single assembly.

Herman, David T. (Aiken, SC); Maxwell, David N. (Aiken, SC)

2011-04-19T23:59:59.000Z

3

Focus on rotary drill rigs  

SciTech Connect (OSTI)

This article discusses the drill rig, focusing on the rotary drill rigs. There are two principal drilling methods - rotary and percussion. In certain situations, percussion drilling is the most practical method, but for most applications, rotary drilling using the rotary-tricone bit with either steel-toothed cones or carbide inserts, is the common and accepted drilling technique. There are four principal reasons for a rotary drill rig: to provide power to the rotary-tricone bit; to provide air to clean the hole; to provide a life-support system for the rotary-tricone bits; and, to provide a stable and efficient platform from which to drill the hole.

Schivley, G.P. Jr.

1987-06-01T23:59:59.000Z

4

Rotary blasthole drilling update  

SciTech Connect (OSTI)

Blasthole drilling rigs are the unsung heroes of open-pit mining. Recently manufacturers have announced new tools. Original equipment manufactures (OEMs) are making safer and more efficient drills. Technology and GPS navigation systems are increasing drilling accuracy. The article describes features of new pieces of equipment: Sandvik's DR460 rotary blasthole drill, P & H's C-Series drills and Atlas Copco's Pit Viper PV275 multiphase rotary blasthole drill rig. DrillNav Plus is a blasthole navigation system developed by Leica Geosystems. 5 photos.

Fiscor, S.

2008-02-15T23:59:59.000Z

5

Rotary mechanical latch  

DOE Patents [OSTI]

A rotary mechanical latch for positive latching and unlatching of a rotary device with a latchable rotating assembly having a latching gear that can be driven to latched and unlatched states by a drive mechanism such as an electric motor. A cam arm affixed to the latching gear interfaces with leading and trailing latch cams affixed to a flange within the drive mechanism. The interaction of the cam arm with leading and trailing latch cams prevents rotation of the rotating assembly by external forces such as those due to vibration or tampering.

Spletzer, Barry L.; Martinez, Michael A.; Marron, Lisa C.

2012-11-13T23:59:59.000Z

6

Rotary shaft sealing assembly  

DOE Patents [OSTI]

A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.

Dietle, Lannie L; Schroeder, John E; Kalsi, Manmohan S; Alvarez, Patricio D

2013-08-13T23:59:59.000Z

7

Rotary magnetic heat pump  

DOE Patents [OSTI]

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation. 5 figs.

Kirol, L.D.

1987-02-11T23:59:59.000Z

8

Rotary Burner Demonstration  

SciTech Connect (OSTI)

The subject technology, the Calcpos Rotary Burner (CRB), is a burner that is proposed to reduce energy consumption and emission levels in comparison to currently available technology. burners are used throughout industry to produce the heat that is required during the refining process. Refineries seek to minimize the use of energy in refining while still meeting EPA regulations for emissions.

Paul Flanagan

2003-04-30T23:59:59.000Z

9

Chapter Three - Rotary Seals  

Science Journals Connector (OSTI)

This chapter discusses the range of rotary seals available that can be applied across a range of industries. The basic operation, key design features and the many potential variants of rotary-shaft lip seals are discussed, plus plastic seals that can be used to extend the performance envelope. Variants that may be used for exclusion of contaminant and alternative designs of elastomer and plastic seals, some of which can be used at high pressures in specialized applications, are covered. The basic design and operation of mechanical seals are discussed. The differences in seal designs covering the range from domestic goods and automotive through process plant to turbo machinery are covered. The key features of compression packing and modern material options are presented. A wide range of other seal types are also used in rotating machinery, particularly in high-speed turbo machinery. Current developments for a number of seal types, labyrinth, honeycomb, leaf seals, brush seals and viscoseals, are summarized.

Robert Flitney

2014-01-01T23:59:59.000Z

10

Recirculating rotary gas compressor  

DOE Patents [OSTI]

A positive displacement, recirculating Roots-type rotary gas compressor is described which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits which return compressed discharge gas to the compressor housing, where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor. 12 figs.

Weinbrecht, J.F.

1992-02-25T23:59:59.000Z

11

Recirculating rotary gas compressor  

DOE Patents [OSTI]

A positive displacement, recirculating Roots-type rotary gas compressor which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits (24 and 26) which return compressed discharge gas to the compressor housing (14), where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers (10 and 12) and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor.

Weinbrecht, John F. (601 Oakwood Loop, NE., Albuquerque, NM 87123)

1992-01-01T23:59:59.000Z

12

Rotary power slips  

SciTech Connect (OSTI)

This patent describes rotary power slips, for use in the rotary table of an earth drilling rig, comprising: a body; slip means carried on the body for gripping and releasing pipe in a pipe opening in a rotary table; a stationary air transfer ring supported by the body, and having a primary fluid conduit for connection to a stationary fluid source on the drilling rig, and having a transverse upper surface with at least two concentric grooves; an annular seal ring secured to the body and having a transverse lower surface and an air passageway; expansive means including an expansive ring having inner and outer edges mounted in the grooves on the upper surface of the air transfer ring and cooperative with the lower surface of the seal ring for forming an annular expansive fluid duct to conduct fluid between the primary fluid conduit and the air passageway; a fluid cylinder mounted on the body and fluidly connected to a secondary fluid conduit through the body to the air passageway for raising and lowering the slip means in response to fluid flow through the primary fluid conduit, the air passageway, and the secondary fluid conduit; and a retainer ring in each of the grooves on the upper surface of the air transfer ring, compressed against one of the edges of the expansive ring for locking the expansive ring in place.

Crowe, W.E.

1987-07-21T23:59:59.000Z

13

Rotary shaft seal  

DOE Patents [OSTI]

The invention is a novel rotary shaft seal assembly which provides positive-contact sealing when the shaft is not rotated and which operates with its sealing surfaces separated by a film of compressed ambient gas whose width is independent of the speed of shaft rotation. In a preferred embodiment, the assembly includes a disc affixed to the shaft for rotation therewith. Axially movable, non-rotatable plates respectively supported by sealing bellows are positioned on either side of the disc to be in sealing engagement therewith. Each plate carries piezoelectric transducer elements which are electrically energized at startup to produce films of compressed ambient gas between the confronting surfaces of the plates and the disc. Following shutdown of the shaft, the transducer elements are de-energized. A control circuit responds to incipient rubbing between the plate and either disc by altering the electrical input to the transducer elements to eliminate rubbing.

Langebrake, Clair O. (Waverly, OH)

1984-01-01T23:59:59.000Z

14

Rotary shaft seal  

DOE Patents [OSTI]

The invention is a novel rotary shaft seal assembly which provides positive-contact sealing when the shaft is not rotated and which operates with its sealing surfaces separated by a film of compressed ambient gas whose width is independent of the speed of shaft rotation. In a preferred embodiment, the assembly includes a disc affixed to the shaft for rotation therewith. Axially movable, non-rotatable plates respectively supported by sealing bellows are positioned on either side of the disc to be in sealing engagement therewith. Each plate carries piezoelectric transucer elements which are electrically energized at startup to produce films of compressed ambient gas between the confronting surfaces of the plates and the disc. Following shutdown of the shaft, the transducer elements are de-energized. A control circuit responds to incipient rubbing between the plate and either disc by altering the electrical input to the transducer elements to eliminate rubbing.

Langebrake, C.O.

1984-01-01T23:59:59.000Z

15

Rotary kiln seal  

SciTech Connect (OSTI)

A rotary seal used to prevent the escape of contaminates from a rotating kiln incinerator. The rotating seal combines a rotating disc plate which is attached to the rotating kiln shell and four sets of non-rotating carbon seal bars housed in a primary and secondary housing and which rub on the sides of the disc. A seal air system is used to create a positive pressure in a chamber between the primary and secondary seals to create a positive air flow into the contaminated gas chamber. The seal air system also employs an air inlet located between the secondary and tertiary seals to further insure that no contaminates pass the seal and enter the external environment and to provide makeup air for the air which flows into the contaminated gas chamber. The pressure exerted by the seal bars on the rotating disc is controlled by means of a preload spring. The seal is capable of operating in a thermally changing environment where the both radial expansion and axial movement of the rotating kiln do not result in the failure of the seal.

Drexler, Robert L. (Idaho Falls, ID)

1992-01-01T23:59:59.000Z

16

Solar-heated rotary kiln  

DOE Patents [OSTI]

A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate is disclosed. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The material to be decomposed is directed through the container into the kiln by a feed tube. The container is also provided with an outlet for exhaust gases and an outlet for spent solids, and rests on a tiltable base. The window may be cooled and kept clear of debris by coolant gases.

Shell, P.K.

1982-04-14T23:59:59.000Z

17

Regenerative rotary displacer Stirling engine  

SciTech Connect (OSTI)

A few rotary displacer Stirling engines in which the displacer has one gas pocket space at one side and rotates in a main enclosed cylinder, which is heated from one side and cooled from opposite side without any regenerator, have been studied for some time by the authors. The authors tried to improve this engine by equipping it with a regenerator, because without a regenerator, pressure oscillation and efficiency are too small. Here, several types of regenerative rotary displacer piston Stirling engines are proposed. One is the contra-rotating tandem two disc type displacer engine using axial heat conduction through side walls or by heat pipes and another is a single disc type with circulating fluid regenerator or heat pipes. Stirling engines of this new rotary displacer type are thought to attain high speed. Here, experimental results of the original rotary displacer Stirling engine without a regenerator, and one contra-rotating tandem displacer engine with side wall regenerator by axial heat conduction are reported accompanied with a discussion of the results.

Isshiki, Naotsugu; Watanabe, Hiroichi [Nihon Univ. Tokyo (Japan); Raggi, L. [Waseda Univ., Tokyo (Japan); Isshiki, Seita; Hirata, Koichi

1996-12-31T23:59:59.000Z

18

Rotary mode system initial instrument calibration  

SciTech Connect (OSTI)

The attached report contains the vendor calibration procedures used for the initial instrument calibration of the rotary core sampling equipment. The procedures are from approved vendor information files.

Johns, B.R.

1994-10-01T23:59:59.000Z

19

Rotary kilns - transport phenomena and transport processes  

SciTech Connect (OSTI)

Rotary kilns and rotating industrial drying ovens are used for a wide variety of applications including processing raw minerals and feedstocks as well as heat-treating hazardous wastes. They are particularly critical in the manufacture of Portland cement. Their design and operation is critical to their efficient usage, which if done incorrectly can result in improperly treated materials and excessive, high fuel costs. This book treats all engineering aspects of rotary kilns, including thermal and fluid principles involved in their operation, as well as how to properly design an engineering process that uses rotary kilns. Chapter 1: The Rotary Kiln Evolution and Phenomenon Chapter 2: Basic Description of Rotary Kiln Operation Chapter 3: Freeboard Aerodynamic Phenomena Chapter 4: Granular Flows in Rotary Kilns Chapter 5: Mixing and Segregation Chapter 6: Combustion and Flame - includes section on types of fuels used in rotary kilns, coal types, ranking and analysis, petroleum coke combustion, scrap tire combustion, pulverized fuel (coal/coke) firing in kilns, pulverized fuel delivery and firing systems. Chapter 7: Freeboard Heat Transfer Chapter 8: Heat Transfer Processes in the Rotary Kiln Bed Chapter 9: Mass and Energy Balance Chapter 10: Rotary Kiln Minerals Process Applications.

Boateng, A.

2008-01-15T23:59:59.000Z

20

Enclosed rotary disc air pulser  

DOE Patents [OSTI]

An enclosed rotary disc air pulser for use with a solvent extraction pulse olumn includes a housing having inlet, exhaust and pulse leg ports, a shaft mounted in the housing and adapted for axial rotation therein, first and second disc members secured to the shaft within the housing in spaced relation to each other to define a chamber therebetween, the chamber being in communication with the pulse leg port, the first disc member located adjacent the inlet port, the second disc member being located adjacent the exhaust port, each disc member having a milled out portion, the disc members positioned on the shaft so that as the shaft rotates, the milled out portions permit alternative cyclical communication between the inlet port and the chamber and the exhaust port and the chamber.

Olson, A. L. (Idaho Falls, ID); Batcheller, Tom A. (Idaho Falls, ID); Rindfleisch, J. A. (Arco, ID); Morgan, John M. (Arco, ID)

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

VisClim -Visualisation of Climatological Data  

E-Print Network [OSTI]

VisClim - Visualisation of Climatological Data Student Project Markus Kobel January 2004 Supervised Mathematics University of Berne, Switzerland #12;The address of the customer: Climatology/Meteorology Research for this ap- plication (called VisClim) is the Climatology/Meteorology Research Group (Climet) from

Nierstrasz, Oscar

22

VisIt Now Available On Franklin  

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

VisIt Supported on VisIt Supported on Cray Systems VisIt Supported on Cray Systems May 26, 2009 franklin-16b.jpg NERSC's Cray XT4 System, Franklin Scientists computing on NERSC's Cray XT4 system, called Franklin, can have it all. Now that VisIt, one of the most popular frameworks for scientific visualization, is available on Franklin, users can run their simulations on the machine and visualize the output there too. "VisIt is a very useful tool for interpreting scientific data; researchers can use this to explore data from a variety of perspectives," says Gunther Weber of the CRD Visualization Group and the NERSC Analytics Team. He notes that the tool can be used to visualize scalar and vector fields defined on two- and three-dimensional structured and unstructured meshes.

23

oil-emulsion (rotary) drilling fluid  

Science Journals Connector (OSTI)

oil-emulsion (rotary) drilling fluid, oil-emulsion fluid [Used where low fluid-loss, very thin cake, and good lubrication of the drill pipe are of primary importance, such as in directional drilling ...

2014-08-01T23:59:59.000Z

24

oil-base(d) (rotary) drilling fluid  

Science Journals Connector (OSTI)

oil-base(d) (rotary) drilling fluid, oil-base(d) fluid [Used primarily for drilling-in or recomputing wells in formations subject ... with low formation pressures. See remark under “drilling fluid”] ...

2014-08-01T23:59:59.000Z

25

Soft torque rotary system reduces drillstring failures  

SciTech Connect (OSTI)

This paper reports that the use of the soft torque system has significantly reduced torque fluctuations (up to 80%), torsional drillstring vibrations, and bit slip-stick conditions to help reduce drillstring failures and improve penetration rates in deep directional wells. The system was instrumental in eliminating expensive ($5-10 million) drillstring failures on Well SL 531 No. 3, a complex directional well in Mobile Bay. The soft torque rotary system attenuates and interrupts the torsional oscillations of the drillstring and thus prevents the buildup of energy in torsional waves that are reflected back and forth between the bit and the rotary table. The soft torque rotary system can be installed on any rig equipped with an independent electronically driven rotary table or top drive. The system is relatively inexpensive and easy to install.

Javanmardi, K.; Gaspard, D. (Shell Offshore Inc., New Orleans, LA (United States))

1992-10-12T23:59:59.000Z

26

Rotary-linear axes for high speed machining  

E-Print Network [OSTI]

This thesis presents the design, analysis, fabrication, and control of a rotary-linear axis; this axis is a key subsystem for high speed, 5-axis machine tools intended for fabricating centimeter-scale parts. The rotary-linear ...

Liebman, Michael Kevin, 1974-

2001-01-01T23:59:59.000Z

27

Rotary Shaft Power Extraction From a Free-Piston Engine  

Broader source: Energy.gov [DOE]

A mechanical rectifier using modern high-performance mechanical diodes can improve direct rotary shaft power output.

28

Rotary Mode Core Sample System availability improvement  

SciTech Connect (OSTI)

The Rotary Mode Core Sample System (RMCSS) is used to obtain stratified samples of the waste deposits in single-shell and double-shell waste tanks at the Hanford Site. The samples are used to characterize the waste in support of ongoing and future waste remediation efforts. Four sampling trucks have been developed to obtain these samples. Truck I was the first in operation and is currently being used to obtain samples where the push mode is appropriate (i.e., no rotation of drill). Truck 2 is similar to truck 1, except for added safety features, and is in operation to obtain samples using either a push mode or rotary drill mode. Trucks 3 and 4 are now being fabricated to be essentially identical to truck 2.

Jenkins, W.W.; Bennett, K.L.; Potter, J.D. [Westinghouse Hanford Co., Richland, WA (United States); Cross, B.T.; Burkes, J.M.; Rogers, A.C. [Southwest Research Institute (United States)

1995-02-28T23:59:59.000Z

29

Rollover analysis of rotary mode core sampler truck No. 2  

SciTech Connect (OSTI)

This document provides estimate of limiting speed and rollover analysis of rotary mode core sampler truck No. 2 (RMCST No. 2).

Ziada, H.H.

1994-11-08T23:59:59.000Z

30

Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox  

E-Print Network [OSTI]

DRAFT Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox Computer Laboratory, University of Cambridge Submitted: 15th December, 1995 Revised: 30th May, 1996 Abstract The rotary pipeline processor is a new architecture for su- perscalar computing. It is based on a simple and regular pipeline

Robinson, Peter

31

Rotary seal with improved film distribution  

DOE Patents [OSTI]

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

Dietle, Lannie Laroy; Schroeder, John Erick

2013-10-08T23:59:59.000Z

32

DNA damage: risk comparisons of low radiation vis-a-vis dietary micronutrient deficiencies  

Science Journals Connector (OSTI)

Micronutrients are the substances in minute amounts that are essential for human life. This study discusses laboratory and epidemiological evidence that dietary micronutrient deficiencies cause DNA damage. DNA damage comparisons are made between dietary micronutrient deficiencies and low dose radiation. Laboratory studies show that micronutrient deficiencies can cause greater DNA damage than radiation doses significantly above background environmental levels. Previous concerns that have been expressed about comparing endogenous DNA damages to radiation-induced DNA damages are discussed, in particular, the role of radiation clusters. It is shown that cluster damage does not preclude making comparisons of dietary micronutrient deficiencies vis-a-vis radiation, especially at background environmental levels. Such damage comparisons provide the public with a means of placing radiation risk in perspective by comparing a readily appreciated, everyday concept (dietary deficiencies) with that of radiation.

Daniel P. Hayes

2006-01-01T23:59:59.000Z

33

Computational Modeling of Relevant Automotive Rotary Spray Painting Process  

Science Journals Connector (OSTI)

During the automotive spray painting process, metallic car shells are conveyed at ... specified constant rectilinear speed through the booth. Robot-assisted rotary atomizers spray the car shell ... path particula...

Abraham J. Salazar

2013-01-01T23:59:59.000Z

34

Evaluation of Alternative Filter Media for the Rotary Microfilter  

SciTech Connect (OSTI)

M. R. Poirier , D. T. Herman & R. Bhave (2012) Evaluation of Alternative Filter Media for the Rotary Microfilter, Separation Science and Technology, 47:14-15, 2108-2114

Poirier, M. [Savannah River National Laboratory, Environmental and Chemical Process Technology; Herman, [Savannah River National Laboratory, Environmental and Chemical Process Technology; Bhave, Ramesh R [ORNL

2012-01-01T23:59:59.000Z

35

Purifying rotary kiln waste gases in chamotte burning  

Science Journals Connector (OSTI)

A study of the operation of electric filters connected to rotary kilns for burning clay into chamotte showed that to increase the dust extraction efficiency it is necessary: with dust concentrations in the gas...

Yu. I. Chander; S. Z. Belinskii; L. G. Borisovskii

36

Novel design of a rotary valve using axiomatic design  

E-Print Network [OSTI]

Rotary valves have existed for millennia; and while they have developed tremendously since the first Roman valves, many of the same problems have persisted. The basic problems are caused by the coupling of functional ...

Peliks, Robert Bilgor

2005-01-01T23:59:59.000Z

37

Surf zone monitoring using rotary wing Unmanned Aerial Vehicles  

Science Journals Connector (OSTI)

We investigate the potential of rotary wing Unmanned Aerial Vehicles (UAVs) to monitor the surf zone. We show that these UAVs are extremely flexible surveying platforms that can gather near-continuous, moderate spatial and high temporal resolution ...

Ronald L. Brouwer; Matthieu A. de Schipper; Patrick F. Rynne; Fiona J. Graham; Ad J.H.M. Reniers; Jamie H. MacMahan

38

Ultrasonic Rayleigh wave inspection of unit train rotary couplers  

E-Print Network [OSTI]

of using ultrasonic Rayleigh waves I' or the inspection of rotary couplers 'O'. Experiments rvere conducted on three couplers, one that was cracked, one that was nerv, and one new coupler with simulated cracks. IJsing a commercial probe. indications... of using ultrasonic Rayleigh waves I' or the inspection of rotary couplers 'O'. Experiments rvere conducted on three couplers, one that was cracked, one that was nerv, and one new coupler with simulated cracks. IJsing a commercial probe. indications...

Salkowski, Charles Leo

2012-06-07T23:59:59.000Z

39

Rotating head for rotary drilling rigs  

SciTech Connect (OSTI)

A rotating head is claimed for a rotary drilling rig which is to be secured to the top of a well pipe having an inner rotating portion with an opening therethrough which permits passage of drill pipe, pipe joints, and Kelly tools; the rotating portion has an annular drive rubber formed integrally with the top portion thereof. A rotating head drive bushing having an opening with a cross-sectional shape generally conforming to the cross-section of the Kelly tool to permit only sliding motion therebetween is provided with helical external ridges which produce a disengagable gripping action with the opening in the drive rubber at the top of the rotating portion of the rotating head. The rotating portion has a conventional stripper rubber at the bottom thereof and is mounted with a double roller bearing to provide low friction motion with respect to the fixed portion of the head. The double roller bearing is lubricated with a viscous lubricating material and paddles are provided between the sets of rollers of the double roller bearing for distributing the viscous lubricating material and in particular propel it onto the upper set of bearings; the upper body portion of the rotating head is readily detachable from the lower sleeve portion which is normally welded to the well conductor pipe.

Adams, J.R.

1983-09-27T23:59:59.000Z

40

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Wednesday, 28 April 2010 00:00 Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

Note: This page contains sample records for the topic "vis cous rotary" 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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Wednesday, 28 April 2010 00:00 Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

42

Pick sequencing optimization problem in the rotary rack S/R system  

Science Journals Connector (OSTI)

The problem of pick sequencing in the rotary rack S/R system (PPS-RRS) is ... of minimizing the execution time. The rotary rack S/R system consists of one S/...

Pan Zhang; Lei Jia; Guohui Tian

2004-08-01T23:59:59.000Z

43

Development of multiscale models for the performance of the gas and oil seals in rotary engines  

E-Print Network [OSTI]

Rotary engines offer higher power density, fewer parts and lower vibrations than conventional reciprocating piston engines. However, rotary engines are more difficult to seal because of the rotor shape which leads to higher ...

Picard, Mathieu

2014-01-01T23:59:59.000Z

44

Results of no-flow rotary drill bit comparison testing  

SciTech Connect (OSTI)

This document describes the results of testing of a newer rotary sampling bit and sampler insert called the No-Flow System. This No-Flow System was tested side by side against the currently used rotary bit and sampler insert, called the Standard System. The two systems were tested using several ''hard to sample'' granular non-hazardous simulants to determine which could provide greater sample recovery. The No-Flow System measurably outperformed the Standard System in each of the tested simulants.

WITWER, K.S.

1998-11-30T23:59:59.000Z

45

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

46

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

47

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

48

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

49

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

50

ATP Synthase: Two rotary molecular motors working together  

E-Print Network [OSTI]

1 ATP Synthase: Two rotary molecular motors working together George Oster Hongyun Wang University of California, Berkeley Introduction ATP synthaseÃ?also called FoF1 ATPase, or simply F-ATPaseÃ?is the universal protein that terminates oxidative phosphorylation by synthesizing ATP from ADP and phosphate. Nearly

Wang, Hongyun

51

Micro rotary machine and methods for using same  

DOE Patents [OSTI]

A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro actuator. A micro tool is coupled to the micro shaft and is operable to perform work in response to motion of the micro shaft.

Stalford, Harold L. (Norman, OK)

2012-04-17T23:59:59.000Z

52

Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox  

E-Print Network [OSTI]

DRAFT Rotary Pipeline Processors Simon Moore, Peter Robinson, Steve Wilcox Computer Laboratory pipeline processor is a new architecture for su- perscalar computing. It is based on a simple and regular pipeline structure which can support several ALUs for effi- cient dispatching of multiple instructions

Moore, Simon

53

Calculator program optimizes bit weight, rotary speed, reducing drilling cost  

SciTech Connect (OSTI)

Bit selection, bit weight, and rotary speed have repeatedly proven to be the most important and commonly overlooked alterable factors which control penetration rate, footage, and overall drilling cost. This is particularly true in offshore operations where drilling costs are highest and the greatest cost savings stand to be achieved through implementation of proven optimization techniques. The myth that bit weights and rotary speeds cannot be optimized in directional holes has hindered the industry from using this virtually cost-free method for reducing drilling cost. The use of optimized bit weights and rotary speeds in conjunction with minimum cost bit programs based on cost per foot analysis of previous bit runs in the area was implemented on a five-well platform in the Grand Isle Block 20 field, offshore Louisiana. Each of the directional wells was drilled substantially faster and cheaper than the discovery well, which was a straight hole. Average reductions in footage cost of 31.3%, based on daily operating cost of $30,000/day, and increase in average daily footage drilled of 45.2% were effected by ''collectively optimizing'' drilling performance. The ''Optimizer'' program is an HP-41CV adaptation of the Bourgoyne and Young drilling model. It was used to calculate the optimum bit weights and rotary speeds based on field drilling tests; historical bit and bearing wear data; and current operating conditions, cost, and constraints.

Simpson, M.A.

1984-04-23T23:59:59.000Z

54

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Print Hexameric motor proteins represent a complex class of molecular machines that variously push and pull on biological molecules using adenosine triphosphate (ATP) as chemical fuel. A specialized class of ring-shaped motor proteins, hexameric helicases, can unwind DNA strands and perform large-scale manipulations of single-stranded nucleic acids in processes such as DNA replication, DNA repair, and gene expression. To understand how certain hexameric helicases walk with directional polarity along single-stranded nucleic acids, Berkeley researchers used x-ray crystallography at the ALS to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands through its interior. Interestingly, the rotary firing order of the motor is biased so that the Rho protein can walk in only one direction along the RNA chain.

55

Wide and multiple apex seals for the rotary engine: (Abbr.: Multi-Apex-Seals for the Rotary Engine)  

Science Journals Connector (OSTI)

Abstract Conventional rotary engines are based on a trochoidal-type housing bore profile and its inside envelope is the basis of the rotor profile. To seal the chambers, spring-loaded apex seals are used in place of the designed rotor apexes. The conventional design method is limited to an epitrochoidal-based housing and does not consider the apex seal profile. Previously the authors presented the complete theory and algorithm of the deviation-function (DF) method of rotary engine design based on the apex seal profile. By using the DF method, the apex seal and engine housing bore are conjugate kinematic pairs, which enable the design of a variety of apex seals that conform to the bore, including wider apex seals and multiple seals at each rotor apex. The wide apex seal design has better rotor-to-housing conformity and therefore improves sealing. The multi-apex-seal grid assembly improves sealing capability and also reduces the forces on the apex seals. The incorporation of apex seal profiles into the rotary engine design process also makes possible a larger variety of new rotary engine profiles.

Sarah Warren Rose; Daniel C.H. Yang

2014-01-01T23:59:59.000Z

56

GeneVis: visualization tools for genetic regulatory network dynamics  

Science Journals Connector (OSTI)

GeneVis provides a visual environment for exploring the dynamics of genetic regulatory networks. At present time, genetic regulation is the focus of intensive research worldwide, and computational aids are being called for to help in the research of ... Keywords: biological visualization, focus and context, genetic networks, lenses, multirepresentation, visualization

C. A. H Baker; M. S. T Carpendale; P. Prusinkiewicz; M. G. Surette

2002-10-01T23:59:59.000Z

57

Deep Web Integration with VisQI Thomas Kabisch  

E-Print Network [OSTI]

Deep Web Integration with VisQI Thomas Kabisch Humboldt-Universit¨at zu Berlin Berlin, Germany of Deep Web sources. Building sys- tems which would be able to automatically use all or a large fraction of all Deep Web sources of a given domain, such as airline reservation in the USA, would offer great

Meng, Weiyi

58

Rotary torque and rpm indicator for oil well drilling rigs  

SciTech Connect (OSTI)

Monitoring the torque applied by the rotary table to the drill string and the rpm of the drill string is provided. An intermediate adapter is positioned between the drill kelly and the rotary table. A strain gauge is attached to the intermediate adapter to measure torsional deformation and provide an indication of rotary torque. Transmission of torque data is accomplished by radio frequency transmission utilizing a transmitter on the intermediate adapter. A receiver is mounted to the side of the drill rig floor to receive and demodulate the torque signal. The intermediate adapter is rotating at the same rate as the drill string. Detection of the revolutions utilizing the changing R.F. Field strength is accomplished at the edge of the drill rig platform or elsewhere with a stationary sensor which doubles as the torque receiver. A highly directional torque transmitter antenna mounted on the adapter is used with the major lobe lying parallel to the rig floor and perpendicular to the pipe. By detecting the envelope of the radio frequency field strength, each rotation is marked by a peak. This enables continuous torque and rpm monitoring.

Chien, L.C.

1981-08-25T23:59:59.000Z

59

Rotary union for use with ultrasonic thickness measuring probe  

DOE Patents [OSTI]

A rotary union for rotatably supporting an ultrasonic probe operable to nondestructively measure the thickness of steam generator tubes to determine the amount of corrosion experienced by the tubes includes a stationary body having a bore therethrough and an outlet drain, and a fitting rotatably mounted within the upper end of the body. The fitting has a bore aligned with the bore of the body. An electrical cable positioned within a water supply tube in an annular arrangement passes through the bore of the body and the bore of the fitting. This annular arrangement, in turn, is positioned within a connector element which extends outwardly from the fitting bore and is connected to the ultrasonic probe. An elastomeric lower bushing seals the annular arrangement to the lower end of the rotary union body and an elastomeric upper bushing seals the connector element to the fitting to permit the connector element and the ultrasonic probe connected thereto to rotate with the fitting relative to the body. The lower and upper bushings permit water to be passed through the annular arrangement and into the ultrasonic probe and thereafter discharged between the annular arrangement and the connector element to the outlet drain of the rotary union body. 5 figs.

Nachbar, H.D.

1992-09-15T23:59:59.000Z

60

E-Print Network 3.0 - alpha rotary joint Sample Search Results  

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

Drilling Diana LaBelle, John Bares, Illah Nourbakhsh Summary: , thrust, rotary speed and penetration rate, to train a neural network to classify rock. Section 2... applications...

Note: This page contains sample records for the topic "vis cous rotary" 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

Systems acceptance and operability testing for rotary mode core sampling in flammable gas tanks  

SciTech Connect (OSTI)

This document provides instructions for the system acceptance and operability testing of the rotary mode core sampling system, modified for use in flammable gas tanks.

Corbett, J.E., Westinghouse Hanford

1996-07-29T23:59:59.000Z

62

DEVELOPMENT OF A ROTARY MICROFILTER FOR RADIOACTIVE WASTE APPLICATIONS  

SciTech Connect (OSTI)

The processing rate of Savannah River Site (SRS) high-level waste decontamination processes are limited by the flow rate of the solid-liquid separation. The baseline process, using a 0.1 micron cross-flow filter, produces {approx}0.02 gpm/sq. ft. of filtrate under expected operating conditions. Savannah River National Laboratory (SRNL) demonstrated significantly higher filter flux for actual waste samples using a small-scale rotary filter. With funding from the U. S. Department of Energy Office of Cleanup Technology, SRNL personnel are evaluating and developing the rotary microfilter for radioactive service at SRS. The authors improved the design for the disks and filter unit to make them suitable for high-level radioactive service. They procured two units using the new design, tested them with simulated SRS wastes, and evaluated the operation of the units. Work to date provides the following conclusions and program status: (1) The authors modified the design of the filter disks to remove epoxy and Ryton{reg_sign}. The new design includes welding both stainless steel and ceramic coated stainless steel filter media to a stainless steel support plate. The welded disks were tested in the full-scale unit. They showed good reliability and met filtrate quality requirements. (2) The authors modified the design of the unit, making installation and removal easier. The new design uses a modular, one-piece filter stack that is removed simply by disassembly of a flange on the upper (inlet) side of the filter housing. All seals and rotary unions are contained within the removable stack. (3) While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service conditions is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement of the current seal with an air seal could increase the lifetime to 5 years and is undergoing testing in the current work. (4) The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Replacing the graphite bushing with a more wear resistant material such as a carbide material will increase the lifetime of the bushing. This replacement requires a more wear resistant part or coating to prevent excessive wear of the shaft. The authors are currently conducting testing with the more wear resistant bushing. (5) The project team plans to use the rotary microfilter as a filter in advance of an ion exchange process under development for potential deployment in SRS waste tank risers.

Poirier, M; David Herman, D; Samuel Fink, S

2008-02-25T23:59:59.000Z

63

Accepted Manuscript A wall heat transfer correlation for the baffled-rotary kilns with secondary air  

E-Print Network [OSTI]

Accepted Manuscript A wall heat transfer correlation for the baffled-rotary kilns with secondary;1 A wall heat transfer correlation for the baffled- rotary kilns with secondary air flow and recycled industrial applications suggests examining the heat transfer phenomena in order to improve the multi

Boyer, Edmond

64

Rotary Wing UAV Position Control using Backstepping Bilal Ahmed, Hemanshu R. Pota and Matt Garratt  

E-Print Network [OSTI]

Rotary Wing UAV Position Control using Backstepping Bilal Ahmed, Hemanshu R. Pota and Matt Garratt Abstract-- This paper presents a novel position control method for rotary wing UAVs using the backstepping for underactuated UAV including the flybar and flapping dynamics when stability derivatives are not available

Pota, Himanshu Roy

65

Structural model of F1–ATPase and the implications for rotary catalysis  

Science Journals Connector (OSTI)

...and R. M. Simmons Structural model of F1-ATPase and the implications for rotary...crystal structure of bovine mitochondrial F1-ATPase is described. Several features...approximately spherical alpha3beta3 sub-assembly. F1-ATPase|crystal structure|rotary catalysis...

2000-01-01T23:59:59.000Z

66

Electric Field Driven Torque in Biological Rotary Motors  

E-Print Network [OSTI]

Ion driven rotary motors, such as Fo-ATP synthase (Fo) and the bacterial flagellar motor, act much like a battery-powered electric motor. They convert energy from ions as they move from high to low potential across a membrane into torque and rotary motion. Here we propose a mechanism whereby electric fields, emanating from channels in one or more stators, act on asymmetric charge distributions due to protonated and deprotonated sites in the rotor and drive it to rotate. The model predicts an ideal scaling law between torque and ion motive force, which can be hindered by mitochondrial mutations. The rotor of Fo drives the gamma-subunit to rotate within the ATP-producing complex (F1), working against an opposing torque that rises and falls periodically with angular position. Drawing an analogy with Brownian motion of a particle in a tilted washboard potential, we compute the highly nonlinear ATP production rate vs. proton motive force (pmf), showing a minimum pmf needed to drive ATP production with important me...

Miller,, John H; Maric, Sladjana; Infante, Hans L; Claycomb, James R

2013-01-01T23:59:59.000Z

67

Development of a Low-Cost Rotary Steerable Drilling System  

SciTech Connect (OSTI)

The project had the goal to develop and commercialize a low-cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures to reduce operating costs by a minimum of 50% and lost-in-hole charges by at least 50% over the currently offered systems. The LCRSS system developed under this project does reduce operating costs by 55% and lost-in-hole charges by at least 50%. The developed product is not commercializable in its current form. The overall objective was to develop and commercialize a low cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures (20,000 psi/150 C) while reducing the operating costs by 50% and the lost-in-hole charges by 50% over the currently available systems. The proposed reduction in costs were to be realized through the significant reduction in tool complexity, a corresponding increase in tool reliability as expressed in the mean-time between failure (MTBF), and a reduction in the time and costs required to service tools after each field operation. Ultimately, the LCRSS system was to be capable of drilling 7 7/8 in. to 9 5/8 in. borehole diameters. The project was divided into three Phases, of which Phases I & II were previously completed and reported on, and are part of the case file. Therefore, the previously reported information is not repeated herein. Phase III included the fabrication of two field ready prototypes that were to be subjected to a series of drilling tests at GTI Catoosa, DOE RMOTC, and at customer partnering wells, if possible, as appropriate in the timing of the field test objectives to fully exercise all elements of the LCRSS. These tests were conducted in an iterative process based on a performance/reliability improvement cycle with the goal of demonstrating the system met all aspects required for commercial viability. These tests were conducted to achieve continuous runs of 100+ hours with well trajectories that fully exercised the tool's build/turn/drop/hold target capabilities and its higher end ratings for bit weight, torque and rotary speed. The tool teardowns were rigorously analyzed at the conclusion of each field run to assess component wear rates and to fully document any detrimental behavior(s) observed.

Roney Nazarian

2012-01-31T23:59:59.000Z

68

CFD Simulation of Brine-Seawater Mixing in a Rotary Energy Recovery Device  

Science Journals Connector (OSTI)

CFD Simulation of Brine-Seawater Mixing in a Rotary Energy Recovery Device ... The effects of operational conditions on the mixing behavior of rotary energy recovery device have been systematically investigated through the combined methods of computational fluid dynamics and validating experiments in this paper. ... The obtained formulas between mixing and dimensionless flow length provide a simple way to calculate and predict the mixing of device, which will be beneficial to design and operate the rotary energy recovery device in a lower mixing level. ...

Enle Xu; Yue Wang; Liming Wu; Shichang Xu; Yuxin Wang; Shichang Wang

2014-11-05T23:59:59.000Z

69

TESTING OF THE SECOND GENERATION SPINTEK ROTARY FILTER -11357  

SciTech Connect (OSTI)

The SpinTek rotary microfilter has been developed under the Department of Energy (DOE) Office of Environmental Management (EM) for the purpose of deployment in radioactive service in the DOE complex. The unit that was fabricated and tested is the second generation of the filter that incorporates recommended improvements from previous testing. The completion of this test satisfied a key milestone for the EM technology development program and technology readiness for deployment by Savannah River Remediation in the Small Column Ion Exchange and Sludge Washing processes at the Savannah River Site (SRS). The Savannah River National Laboratory (SRNL) contracted SpinTek Filtration to fabricate a full scale 25 disk rotary filter and perform a 1000 hour endurance test with a simulated SRS sludge. Over 1500 hours of operation have been completed with the filter. SpinTek Filtration fabricated a prototypic 25 disk rotary filter including updates to manufacturing tolerances, an updated design to the rotary joint, improved cooling to the bottom journal, decreases in disk and filter shaft hydraulic resistances. The filter disks were fabricated with 0.5 {micro} pore size, sintered-metal filter media manufactured by Pall Corporation (M050). After fabrication was complete, the filter passed acceptance tests demonstrating rejection of solids and clean water flux with a 50% improvement over the previous filters. Once the acceptance test was complete, a 1000 hour endurance test was initiated simulating a sludge washing process. The test used a simulated SRS Sludge Batch 6 recipe. The insoluble solids started at 5 wt% and were raised to 10 and 15 wt% insoluble solids to simulate the concentration of a large volume tank. The filter system was automated and set up for 24 hour unattended operation. To facilitate this, process control logic was written to operate the filter. During the development it was demonstrated that the method of starting and stopping the filter can affect the build up of filter cake on the disks and therefore the performance of the filter. The filter performed well with the simulant. Very little drop in production was noticed between the 5 and 10 wt% insoluble solids feed. Increasing to 15 wt% had a more pronounced impact due to the rheology of the feed. Acid cleaning was used to clean the filter disks in-situ and restore filtration rate to almost 90% of the initial clean disk rate. Eighty liters of 0.2 M nitric acid in conjunction with water rinses were used to clean the filter in less than 2 hours. Filter testing was completed after 1000 hours of operation were performed on the final filter assembly configuration. The total run time for the testing was over 1500 hours. At the end of the test, the sludge washing was performed successfully from approximately 5.6 M to less than 1 M sodium.

Herman, D.; Poirier, M.; Fowley, M.; Keefer, M.; Huff, T.

2011-02-02T23:59:59.000Z

70

Theoretical and experimental study on regenerative rotary displacer Stirling engine  

SciTech Connect (OSTI)

Recently a quite new type of hot air engine called rotary displacer engine, in which the displacer is a rotating disk enclosed in a cylinder, has been conceived and developed. The working gas, contained in a notch excavated in the disk, is heated and cooled alternately, on account of the heat transferred through the enclosing cylinder that is heated at one side and cooled at the opposite one. The gas temperature oscillations cause the pressure fluctuations that get out mechanical power acting on a power piston. In order to attempt to increase the performances for this kind of engine, the authors propose three different regeneration methods. The first one comprises two coaxial disks that, revolving in opposite ways, cause a temperature gradient on the cylinder wall and a regenerative axial heat conduction through fins shaped on the cylinder inner wall. The other two methods are based on the heat transferred by a proper closed circuit that in one case has a circulating liquid inside and in the other one is formed by several heat pipes working each one for different temperatures. An engine based on the first principle, the Regenerative Tandem Contra-Rotary Displacer Stirling Engine, has been realized and experimented. In this paper experimental results with and without regeneration are reported comparatively with a detailed description of the unity. A basic explanation of the working principle of this engine and a theoretical analysis investigating the main influential parameters for the regenerative effect are done. This new rotating displacer Stirling engines, for their simplicity, are expected to attain high rotational speed especially for applications as demonstration and hobby unities.

Raggi, L.; Katsuta, Masafumi [Waseda Univ., Tokyo (Japan); Isshiki, Naotsugu [Nihon Univ., Tokyo (Japan); Isshiki, Seita [Isshiki R and D Lab., Tokyo (Japan)

1997-12-31T23:59:59.000Z

71

Calculation of the geometric parameters of rotary rolling by using the automated design system autodesk inventor  

Science Journals Connector (OSTI)

A method is proposed for calculating the profile of the rolls of a rotary rolling mill with the use of the 3D-modeling program Autodesk Inventor. The universality of the method is...

S. M. Gorbatyuk; V. A. Osadchii; E. Z. Tuktarov

2011-11-01T23:59:59.000Z

72

Method for determining effective flame emissivity in a rotary kiln incinerator burning solid waste  

Science Journals Connector (OSTI)

Temperature is the most important parameter for the improvement of combustion efficiency and the control of pollutants. In order to obtain accurate flame temperatures in a rotary kiln incinerator using non-int...

Jin-cai Du; Qun-xing Huang; Jian-hua Yan

2012-12-01T23:59:59.000Z

73

James Walker develops Walkersele D8 – a new rotary lip seal for marine propulsion systems  

Science Journals Connector (OSTI)

Walkersele D8 is a new design of rotary lip seal developed by James Walker & Co Ltd for use in marine propulsion systems to protect bearings from water ingress or prevent lubricant from leaking into the marine environment.

2012-01-01T23:59:59.000Z

74

Rotary Triboelectric Nanogenerator Based on a Hybridized Mechanism for Harvesting Wind Energy  

Science Journals Connector (OSTI)

Rotary Triboelectric Nanogenerator Based on a Hybridized Mechanism for Harvesting Wind Energy ... Triboelectric nanogenerator (TENG) is a simple, cost-effective, and highly efficient approach for generating electricity from mechanical energies in a wide range of forms. ...

Yannan Xie; Sihong Wang; Long Lin; Qingshen Jing; Zong-Hong Lin; Simiao Niu; Zhengyun Wu; Zhong Lin Wang

2013-06-14T23:59:59.000Z

75

A Ceramic Waste Heat Recovery System on a Rotary Forge Furnace: An Installation and Operating History  

E-Print Network [OSTI]

heavy duty high temperature ceramic tube recuperator and five high temperature recirculating burners. The energy conservation system was retrofitted onto a rotary hearth furnace with an inside diameter of 11' 5'' (3.5m) and an available hearth area...

Young, S. B.; Campbell, T. E.; Worstell, T. M.

1981-01-01T23:59:59.000Z

76

Ppn. SoL Snow Deplh Observer Vis. Vi;,. Vis. 00 in. 0 in. S5 J5 mi. mi. \\7 mi.  

E-Print Network [OSTI]

. Vi;,. Vis. 00 in. 0 in. S5 J5 mi. mi. \\7 mi. #12;..,- . M I~ · , \\f: ':'0 ll)A.\\I~S· Jb/ Ii I i. $".7~in. 0700 1300 1900 R.H. 24 hr. Mov. Clds. Clds. Clds.Sea L. - ! 0lU/l() .:. flOS-~ '/c. - mi. 30. Vis.Ppn. Sol. Snow Depth Observer a ~Sin. mi. J5 1111. mi.Q.O in. \\/ \\7_____~_____._._!O

Thompson, Anne

77

Design of a new type of rotary Stirling engine  

SciTech Connect (OSTI)

The Stirling machine has had wide diffusion only in cold or cryogenic applications (Philips) while the engine, despite big efforts of large Companies (Philips, Westinghouse, General Motors, etc.), never definitively reached the market; today new interest is raised correlated with environmental and energy related considerations. Thus, researchers efforts are addressed towards the design of innovative and more competitive Stirling engine configurations, like the one here proposed. This paper describes the configuration of a new, rotary Stirling engine. In the cold part of the engine, the working fluid is compressed by a rotating element, then it passes through the regenerator from the cold to the hot end, where it absorbs the heat and expands in the high pressure and temperature area. The high pressure working fluid pushes on the rotating element (the so called rotator) and the engine outputs power. In the design, compression and expansion volumes change with the rotation. Two rotators are connected with a set of gears: therefore, the engine transmission system is simplified and dimensions are reduced.

Abenavoli, R.I.; Dong, W.; Fedele, L.; Sciaboni, A. [Univ. La Sapienza, Rome (Italy). Dipt. di Meccanica e Aeronautica

1996-12-31T23:59:59.000Z

78

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

79

Rotary seal with enhanced lubrication and contaminant flushing  

DOE Patents [OSTI]

A resilient, ring shaped interference-type hydrodynamic rotary seal having waves on the lubricant side which provide increased film thickness and flushing action by creating contact pressure induced angulated restrictions formed by abrupt restrictive diverters. The angulated restrictions are defined by projecting ridges, corners at the trailing edge of the waves, or simply by use of a converging shape at the trailing edge of the waves which is more abrupt than the gently converging hydrodynamic inlet shape at the leading edge of the waves. The abrupt restrictive diverter performs two functions; a restricting function and a diverting function. The angulated restrictions cause a local film thickness restriction which produces a damming effect preventing a portion of the lubricant from leaking out of the dynamic sealing interface at the trailing edge of the wave, and results in a much thicker lubricant film thickness under the waves. This contributes to more film thickness in the remainder of the dynamic sealing interface toward the environment because film thickness tends to decay gradually rather than abruptly due to the relative stiffness of the seal material. Because of the angle of the abrupt restrictive diverter relative to the relative rotation direction, in conjunction with the restriction or damming effect, a strong diverting action is produced which pumps lubricant across the dynamic sealing interface toward the environment. The lubricant diversion is caused by the component of the rotational velocity tangent to the abrupt restrictive diverter. The component of rotational velocity normal to the abrupt restrictive diverter causes a portion of the lubricant film to be pumped past the abrupt restrictive diverter, thereby assuring adequate lubrication thereof.

Dietle, Lannie L. (Sugar Land, TX)

2000-01-01T23:59:59.000Z

80

TeraGrid 2007, Madison WI VisPort: Web-Based Access to Community-Specific  

E-Print Network [OSTI]

place and at any time. VisPort adopts a service-oriented architecture to encapsulate visualization to visualization functionality from any place and at any time [6]. VisPort adopts a service-oriented architecture of visualization. 2.1 Service-Oriented Architecture As shown in Figure 1, VisPort consists of (a) one or more

Note: This page contains sample records for the topic "vis cous rotary" 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

HumanWildlife Interactions 8(2):251260, Fall 2014 Wildlife strikes with U.S. military rotary-  

E-Print Network [OSTI]

, but unstudied, physical hazard to military rotary-wing aircraft used in conducting overseas flight operations to military rotary-wing aircraft during these operations has been conducted. The objectives of this project deployed overseas to conduct a variety of noncombat and combat missions. Our objective was to conduct

82

An introduction to API 682 shaft sealing for centrifugal and rotary pumps  

SciTech Connect (OSTI)

Seal failures in refineries represents between 5,000 and 10,000 dollars in maintenance costs. The lack of an industry standard approach has resulted in high-stocking cost, high maintenance costs, and complicated populations of seals. The API has offered API 682, Shaft Sealing Systems for Centrifugal and Rotary Pumps. This report discusses the benefits of API 682.

Dufour, J.W. [Amoco Oil Company, Chicago, IL (United States); Jones, R.L. [Shell Oil Company, Houston, TX (United States)

1994-11-01T23:59:59.000Z

83

Operability test report for rotary mode core sampling system number 3  

SciTech Connect (OSTI)

This report documents the successful completion of operability testing for the Rotary Mode Core Sampling (RMCS) system {number_sign}3. The Report includes the test procedure (WHC-SD-WM-OTP-174), exception resolutions, data sheets, and a test report summary.

Corbett, J.E.

1996-03-01T23:59:59.000Z

84

Microrheology and structure of a yield-stress polymer gel Felix K. Oppong,1,2  

E-Print Network [OSTI]

. Carbopol is a family of commercial polymers based on cross-linked linear polyacrylic acid chains 2 and pH. When dispersed in water at concentrations up to about 2% by weight, it forms a vis- cous sol

Frisken, Barbara

85

Small mill for the high-temperature rotary rolling of semifinished products composed of refractory metals in protective media  

Science Journals Connector (OSTI)

A description is presented of a small vacuum-type rotary rolling mill designed for the high-temperature deformation of semifinished products to obtain bars 7–10 mm in diameter. It is shown that the CAD software Autodesk

S. M. Gorbatyuk; E. Z. Tuktarov; L. A. Rudenskii

2012-01-01T23:59:59.000Z

86

VisIt: An End-User Tool for Visualizing and Analyzing Very Large Data  

SciTech Connect (OSTI)

VisIt is a popular open source tool for visualizing and analyzing data. It owes its success to its foci of increasing data understanding, large data support, and providing a robust and usable product, as well as its underlying design that fits today's supercomputing landscape. In this short paper, we describe the VisIt project and its accomplishments. The VisIt project's three focal points - understanding data, large data, and delivering a product - together form a powerful environment for analyzing data from HPC simulations. It is used in varied ways: it enables visualization scientists, computational code developers, and the physicists that run these codes to perform a broad range of data understanding activities, including debugging, making movies, and exploring data. The user interface portion of its design provides a powerful paradigm for analyzing data while the data processing portion of its design is well suited for big data. This in turn has led to many successes: in scaling up to high levels of concurrency and large data sizes, in providing a 'home' for large data algorithms, in understanding how to best use supercomputers, and, most importantly, in helping users understand their data. Further, despite significant upcoming changes in supercomputing architecture, VisIt's future appears bright, as it enjoys vibrant user and developer communities.

Childs, Hank [Lawrence Berkeley National Laboratory (LBNL); Brugger, Eric [Lawrence Livermore National Laboratory (LLNL); Whitlock, B. [Lawrence Livermore National Laboratory (LLNL); Meredith, Jeremy S [ORNL; Ahern, Sean [ORNL; Bonnell, Kathleen [Lawrence Livermore National Laboratory (LLNL); Miller, Mark [Lawrence Livermore National Laboratory (LLNL); Weber, G. [Lawrence Berkeley National Laboratory (LBNL); Harrison, Cyrus [Lawrence Livermore National Laboratory (LLNL); Pugmire, Dave [ORNL; Fogal, T. [University of Utah; Garth, Christoph [unknown; Sanderson, Allen [University of Utah; Bethel, E Wes [Lawrence Berkeley National Laboratory (LBNL); Durant, Marc [Tech-X Corporation; Camp, David [Lawrence Berkeley National Laboratory (LBNL); Favre, Jean M. [Swiss National Supercomputing Center; Ruebel, O [unknown; Navratil, Paul [Texas Advanced Computing Center; Wheeler, Matthew [Atomic Weapons Establishment; Selby, Paul [Atomic Weapons Establishment; Vivodtzev, Fabien [CEA, France

2011-01-01T23:59:59.000Z

87

Computational experience with a three-dimensional rotary engine combustion model  

SciTech Connect (OSTI)

A new computer code was developed to analyze the chemically reactive flow and spray combustion processes occurring inside a stratified-charge rotary engine. Mathematical and numerical details of the new code were recently described by the present authors. The results are presented of limited, initial computational trials as a first step in a long-term assessment/validation process. The engine configuration studied was chosen to approximate existing rotary engine flow visualization and hot firing test rigs. Typical results include: (1) pressure and temperature histories, (2) torque generated by the nonuniform pressure distribution within the chamber, (3) energy release rates, and (4) various flow-related phenomena. These are discussed and compared with other predictions reported in the literature. The adequacy or need for improvement in the spray/combustion models and the need for incorporating an appropriate turbulence model are also discussed.

Raju, M.S.; Willis, E.A.

1990-04-01T23:59:59.000Z

88

TESTING OF A FULL-SCALE ROTARY MICROFILTER FOR THE ENHANCED PROCESS FOR RADIONUCLIDES REMOVAL  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) researchers are investigating and developing a rotary microfilter for solid-liquid separation applications in the Department of Energy (DOE) complex. One application involves use in the Enhanced Processes for Radionuclide Removal (EPRR) at the Savannah River Site (SRS). To assess this application, the authors performed rotary filter testing with a full-scale, 25-disk unit manufactured by SpinTek Filtration with 0.5 micron filter media manufactured by Pall Corporation. The filter includes proprietary enhancements by SRNL. The most recent enhancement is replacement of the filter's main shaft seal with a John Crane Type 28LD gas-cooled seal. The feed material was SRS Tank 8F simulated sludge blended with monosodium titanate (MST). Testing examined total insoluble solids concentrations of 0.06 wt % (126 hours of testing) and 5 wt % (82 hours of testing). The following are conclusions from this testing.

Herman, D; David Stefanko, D; Michael Poirier, M; Samuel Fink, S

2009-01-01T23:59:59.000Z

89

Understanding the Dynamics Behind the Photoisomerization of a Light-Driven Fluorene Molecular Rotary Motor  

Science Journals Connector (OSTI)

In the present contribution we report a combined quantum chemical and molecular dynamics study of the mechanism of the rotational cycle of the fluorene-based molecular rotary motor 9-(2,4,7-trimethyl-2,3-dihydro-1H-inden-1-ylidene)-9H-fluorene (1). ... (41) The theoretical results obtained hold considerable implications in achieving a rational synthetic design of future molecular motors with application defined functionality. ...

Andranik Kazaryan; Jos C. M. Kistemaker; Lars V. Scha?fer; Wesley R. Browne; Ben L. Feringa; Michael Filatov

2010-03-29T23:59:59.000Z

90

A thermodynamic analysis of the rotary-vee internal combustion engine  

E-Print Network [OSTI]

OF FIGURES FIGURE 1. IC Engine Family Tree FIGURE 2. Three Possibilities of Single Rotation Machines (SIM) . . . . . Page FIGURE 3 Planetary Rotor Motion and Path of the Apex Seal for the Wankel Engine 10 FIGURE 4. Cut-Away View of the Rand Cam Engine... for the Rotary-Vee Engine 24 FIGURE 9. Overall View of Piston And Cylinder Block Configuration, . . . FIGURE 10. Overall View Showing the Central Cavity . . . . . . . . . . . . . . . . . . . . . . . . . . . FIGURE 11. Sectioned View of the Pistons...

Bailey, Stephen Glenn

2012-06-07T23:59:59.000Z

91

Manipulator having thermally conductive rotary joint for transferring heat from a test specimen  

DOE Patents [OSTI]

A manipulator for rotatably moving a test specimen in an ultra-high vacuum chamber includes a translational unit movable in three mutually perpendicular directions. A manipulator frame is rigidly secured to the translational unit for rotatably supporting a rotary shaft. A first copper disc is rigidly secured to an end of the rotary shaft for rotary movement within the vacuum chamber. A second copper disc is supported upon the first disc. The second disc receives a cryogenic cold head and does not rotate with the first disc. A sapphire plate is interposed between the first and second discs to prevent galling of the copper material while maintaining high thermal conductivity between the first and second discs. A spring is disposed on the shaft to urge the second disc toward the first disc and compressingly engage the interposed sapphire plate. A specimen mount is secured to the first disc for rotation within the vacuum chamber. The specimen maintains high thermal conductivity with the second disc receiving the cryogenic transfer line.

Haney, Steven J. (Tracy, CA); Stulen, Richard H. (Livermore, CA); Toly, Norman F. (Livermore, CA)

1985-01-01T23:59:59.000Z

92

Pitch deviation measurement of an involute spur gear by a rotary profiling system  

Science Journals Connector (OSTI)

Abstract This paper presents surface-profiling based gear pitch deviation measurement for an involute spur gear. A rotary profiling system, which consists of an air-bearing spindle and a displacement sensor with a diamond stylus, is employed to measure gear pitch deviation. In measurement of gear pitch deviation, an eccentric error between a gear axis and a motion axis of the rotary stage in the profiling system would affect accuracy of gear profile measurement. In this paper, at first, the influence of the eccentric error on measurement of gear pitch deviation is estimated in computer simulation based on a geometric model of the profiling system. After that, a new scanning method named “opposite-direction dual scanning method” is proposed so that a steep profile of gear flank surface with a local slope of up to 90° can be measured by the developed rotary profiling system. For compensating distortions in the measured gear tooth profile, which are induced not only by the eccentric error but also by a probe offset introduced by the proposed scanning method, a self-calibration and compensation method is applied. To verify the feasibility of the proposed method, measurement of gear pitch deviation of a master involute spur gear with a certificate data is carried out. Measurement uncertainty of the proposed method is also analyzed.

Bin Xu; Yuki Shimizu; So Ito; Wei Gao

2014-01-01T23:59:59.000Z

93

Comparative analysis of core drilling and rotary drilling in volcanic terrane  

SciTech Connect (OSTI)

Initially, the goal of this report is to compare and contrast penetration rates of rotary-mud drilling and core drilling in young volcanic terranes. It is widely recognized that areas containing an abundance of recent volcanic rocks are excellent targets for geothermal resources. Exploration programs depend heavily upon reliable subsurface information, because surface geophysical methods may be ineffective, inconclusive, or both. Past exploration drilling programs have mainly relied upon rotary-mud rigs for virtually all drilling activity. Core-drilling became popular several years ago, because it could deal effectively with two major problems encountered in young volcanic terranes: very hard, abrasive rock and extreme difficulty in controlling loss of circulation. In addition to overcoming these difficulties, core-drilling produced subsurface samples (core) that defined lithostratigraphy, structure and fractures far better than drill-chips. It seemed that the only negative aspect of core drilling was cost. The cost-per-foot may be two to three times higher than an ''initial quote'' for rotary drilling. In addition, penetration rates for comparable rock-types are often much lower for coring operations. This report also seeks to identify the extent of wireline core drilling (core-drilling using wireline retrieval) as a geothermal exploration tool. 25 refs., 21 figs., 13 tabs.

Flynn, T.; Trexler, D.T.; Wallace, R.H. Jr. (ed.)

1987-04-01T23:59:59.000Z

94

U. S. S. R. turbodrilling ROP exceeds U. S. rotary rate  

SciTech Connect (OSTI)

It is common practice in the U.S.S.R. to evaluate drilling estimates by a mere comparison of the footage drilled on a per-rig, per-month basis because the figure integrates the techniques, technology, and management used. According to this approach, the rate of penetration (ROP) in the U.S.S.R. is 2.3-2.8 times less than that in the U.S. Based on the statistics published in the Neftanaya Promyishlennost annual, in 1988 the average rotary drilling rate in the U.S. was 4,404 m (14,440 ft)/rig/month (this figure in the U.S. annual footage drilled by all rotary rigs divided by the annual average rig count and converted from yearly to monthly figures), and in the U.S.S.R. it was 1,595 m (5,233 ft)/rig/month. This type of comparison is misleading because the drilling areas in the two countries differ greatly in geographic, geologic, and climatic characteristics. The same holds true for comparisons of average well depths. The preceeding characteristics influence drilling estimates differently. The most difficult task is to evaluate these factors as an average in each country. Our approach to the comparison takes into account only the average footage drilled for each country. In the U.S.S.R. more than 85% of the wells are drilled with turbodrills, and in the U.S. most wells (approximately 80%) are rotary drilled.

Pogarskiy, A.A.; Yasashin, A.M. (All Union Scientific and Research Inst. for Organization, Management, and Economics of Oil and Gas Industry, Moscow (SU))

1991-06-03T23:59:59.000Z

95

Manipulator having thermally conductive rotary joint for transferring heat from a test specimen  

DOE Patents [OSTI]

A manipulator for rotatably moving a test specimen in an ultra-high vacuum chamber includes a translational unit movable in three mutually perpendicular directions. A manipulator frame is rigidly secured to the translational unit for rotatably supporting a rotary shaft. A first copper disc is rigidly secured to an end of the rotary shaft for rotary movement within the vacuum chamber. A second copper disc is supported upon the first disc. The second disc receives a cryogenic cold head and does not rotate with the first disc. The second disc receives a cryogenic cold head and does not rotate with the first disc. A sapphire plate is interposed between the first and second discs to prevent galling of the copper material while maintaining high thermal conductivity between the first and second discs. A spring is disposed on the shaft to urge the second disc toward the first disc and compressingly engage the interposed sapphire plate. A specimen mount is secured to the first disc for rotation within the vacuum chamber. The specimen maintains high thermal conductivity with the second disc receiving the cryogenic transfer line.

Haney, S.J.; Stulen, R.H.; Toly, N.F.

1983-05-03T23:59:59.000Z

96

Recent Advances in VisIt: AMR Streamlines and Query-Driven Visualization  

SciTech Connect (OSTI)

Adaptive Mesh Refinement (AMR) is a highly effective method for simulations spanning a large range of spatiotemporal scales such as those encountered in astrophysical simulations. Combining research in novel AMR visualization algorithms and basic infrastructure work, the Department of Energy's (DOEs) Science Discovery through Advanced Computing (SciDAC) Visualization and Analytics Center for Enabling Technologies (VACET) has extended VisIt, an open source visualization tool that can handle AMR data without converting it to alternate representations. This paper focuses on two recent advances in the development of VisIt. First, we have developed streamline computation methods that properly handle multi-domain data sets and utilize effectively multiple processors on parallel machines. Furthermore, we are working on streamline calculation methods that consider an AMR hierarchy and detect transitions from a lower resolution patch into a finer patch and improve interpolation at level boundaries. Second, we focus on visualization of large-scale particle data sets. By integrating the DOE Scientific Data Management (SDM) Center's FastBit indexing technology into VisIt, we are able to reduce particle counts effectively by thresholding and by loading only those particles from disk that satisfy the thresholding criteria. Furthermore, using FastBit it becomes possible to compute parallel coordinate views efficiently, thus facilitating interactive data exploration of massive particle data sets.

Weber, Gunther; Ahern, Sean; Bethel, Wes; Borovikov, Sergey; Childs, Hank; Deines, Eduard; Garth, Christoph; Hagen, Hans; Hamann, Bernd; Joy, Kenneth; Martin, David; Meredith, Jeremy; Prabhat,; Pugmire, David; Rubel, Oliver; Van Straalen, Brian; Wu, Kesheng

2009-11-12T23:59:59.000Z

97

Comparing local vs. global visible and near-infrared (VisNIR) diffuse reflectance spectroscopy (DRS) calibrations for the prediction of soil clay, organic C  

E-Print Network [OSTI]

Comparing local vs. global visible and near-infrared (VisNIR) diffuse reflectance spectroscopy (DRS Elsevier B.V. All rights reserved. 1. Introduction Visible and near-infrared (VisNIR) diffuse reflectance

Lawrence, Rick L.

98

Driven dynamics and rotary echo of a qubit tunably coupled to a harmonic oscillator  

E-Print Network [OSTI]

We have investigated the driven dynamics of a superconducting flux qubit that is tunably coupled to a microwave resonator. We find that the qubit experiences an oscillating field mediated by off-resonant driving of the resonator, leading to strong modifications of the qubit Rabi frequency. This opens an additional noise channel, and we find that low-frequency noise in the coupling parameter causes a reduction of the coherence time during driven evolution. The noise can be mitigated with the rotary-echo pulse sequence, which, for driven systems, is analogous to the Hahn-echo sequence.

Gustavsson, Simon; Yan, Fei; Forn-Díaz, Pol; Bolkhovsky, Vlad; Braje, Danielle; Fitch, George; Harrabi, Khalil; Lennon, Donna; Miloshi, Jovi; Murphy, Peter; Slattery, Rick; Spector, Steven; Turek, Ben; Weir, Terry; Welander, Paul B; Yoshihara, Fumiki; Cory, David G; Nakamura, Yasunobu; Orlando, Terry P; Oliver, William D

2012-01-01T23:59:59.000Z

99

A model of stepping kinetics for rotary enzymes. Application to the F1-ATPase  

Science Journals Connector (OSTI)

Our simple kinetic model, based on the classic “binding change mechanism”, describes the stepping kinetics for the rotary enzyme motors. The model shows that the cooperative interactions between active sites in the motor enzyme F1-ATPase induce the stepping product release. This phenomenon results from non-harmonic oscillations in the enzyme forms. The found rate constants, corresponding to the stepping phenomenon, are close to the rate constants known for the F1-ATPase. The duration of dwells during the product release is shown to depend on the ATP concentration in accordance with the known experimental data.

B.N. Goldstein; A.M. Aksirov; D.T. Zakrjevskaya

2011-01-01T23:59:59.000Z

100

Development of a Rotary Micro-filter for Radioactive Waste Applications  

SciTech Connect (OSTI)

The processing rates of Savannah River Site (SRS) high-level waste decontamination processes are limited by the flow rate of the solid-liquid separation. The baseline process, using a 0.1 micron cross-flow filter, produces {approx}1.36 x 10{sup -5} m/s ({approx}0.02 gpm/ft{sup 2}) of filtrate under expected operating conditions. Savannah River National Laboratory (SRNL) demonstrated significantly higher filter flux for actual waste samples using a small-scale rotary filter. With funding from the U. S. Department of Energy Office of Cleanup Technology, SRNL personnel are evaluating and developing the rotary micro-filter for radioactive service at SRS. The authors improved the design for the disks and filter unit to make them suitable for high-level radioactive service. They procured two units using the new design, tested them with simulated SRS wastes, and evaluated the operation of the units. Work to date provides the following conclusions and program status. - The authors modified the design of the filter disks to remove epoxy and Ryton{sup R}. The new design includes welding both stainless steel and ceramic coated stainless steel filter media to a stainless steel support plate. The welded disks were tested in the full-scale unit. They showed good reliability and met filtrate quality requirements. - The authors modified the design of the unit, making installation and removal easier. The new design uses a modular, one-piece filter stack that is removed simply by disassembly of a flange on the upper (inlet) side of the filter housing. All seals and rotary unions are contained within the removable stack. - While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service conditions is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement of the current seal with an air seal could increase the lifetime to 5 years and is undergoing testing in the current work. - The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Replacing the graphite bushing with a more wear resistant material such as a carbide material will increase the lifetime of the bushing. This replacement requires a more wear resistant part or coating to prevent excessive wear of the shaft. The authors are currently conducting testing with the more wear resistant bushing. - The project team plans to use the rotary micro-filter as a filter in advance of an ion exchange process under development for potential deployment in SRS waste tank risers. (authors)

Poirier, M.R.; Herman, D.T.; Fink, S.D. [Savannah River National Laboratory, Aiken, SC (United States)

2008-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Paper Chromatography and UV–Vis Spectroscopy To Characterize Anthocyanins and Investigate Antioxidant Properties in the Organic Teaching Laboratory  

Science Journals Connector (OSTI)

Second-Year Undergraduate; Organic Chemistry; Laboratory Instruction; Collaborative/Cooperative Learning; Chromatography; Free Radicals; Natural Products; UV-Vis Spectroscopy; Hands-On Learning/Manipulatives; Food Science ...

Kelli R. Galloway; Stacey Lowery Bretz; Michael Novak

2014-10-08T23:59:59.000Z

102

A stochastic penetration rate model for rotary drilling in surface mines  

Science Journals Connector (OSTI)

Abstract Principal Component Analysis (PCA) is used to determine the most effective parameters on the rock mass penetrability by considering their variance ratio in the first principal component. A model is developed for the prediction of rotary drills penetration rate using non-linear multiple regression analysis. Distribution functions for the effective parameters are calculated using measured data from two case studies. Applying the developed penetration rate model, a stochastic analysis is carried out using the Monte Carlo simulation. The proposed method provides a simple and effective assessment of the variability of the penetration rate model and its dependent parameters. Results showed that the PCA and Monte Carlo are suitable techniques for modeling and assessing the variability of rock mass penetrability parameters. According to the developed distribution model, with 90% of confidence level the penetration rate values range 0.2–2.5 m/min, which shows the wide possible range of penetration rates for rotary drilling especially in sedimentary (limestone and sandstone bearing magnetite mineral of Golgohar mine) and Sarcheshmeh igneous porphyry rock masses.

Omid Saeidi; Seyed Rahman Torabi; Mohammad Ataei; Jamal Rostami

2014-01-01T23:59:59.000Z

103

Thermal modeling of core sampling in flammable gas waste tanks. Part 2: Rotary-mode sampling  

SciTech Connect (OSTI)

The radioactive waste stored in underground storage tanks at Hanford site includes mixtures of sodium nitrate and sodium nitrite with organic compounds. The waste can produce undesired violent exothermic reactions when heated locally during the rotary-mode sampling. Experiments are performed varying the downward force at a maximum rotational speed of 55 rpm and minimum nitrogen purge flow of 30 scfm. The rotary drill bit teeth-face temperatures are measured. The waste is simulated with a low thermal conductivity hard material, pumice blocks. A torque meter is used to determine the energy provided to the drill string. The exhaust air-chip temperature as well as drill string and drill bit temperatures and other key operating parameters were recorded. A two-dimensional thermal model is developed. The safe operating conditions were determined for normal operating conditions. A downward force of 750 at 55 rpm and 30 scfm nitrogen purge flow was found to yield acceptable substrate temperatures. The model predicted experimental results reasonably well. Therefore, it could be used to simulate abnormal conditions to develop procedures for safe operations.

Unal, C.; Poston, D.; Pasamehmetoglu, K.O. [Los Alamos National Lab., NM (United States). Nuclear Systems Design and Analysis Group; Witwer, K.S. [Westinghouse Hanford Co., Richland, WA (United States). Engineering Testing Lab.

1997-08-01T23:59:59.000Z

104

Operability test procedure for rotary mode core sampling system {number_sign}3  

SciTech Connect (OSTI)

This document gives instructions for the Operability Testing of the Rotary Mode Core Sampling (RMCS) System No. 3. This document is based on the Operability Test Procedure for RMCS system No. 2 because the basic design is the same for all three systems. Modifications have been made from the original design only when exact duplication was not feasible or design improvements could be incorporated without affecting the operation of the system. Operability testing of the Rotary Mode Core Sampling System No. 3, will verify that functional and operational requirements have been met. Testing will be completed in two phases. The first phase of testing (section 7) will involve operating the truck equipment to demonstrate its capabilities. The second phase of testing (section 8) will take repeated samples in a simulated operation environment. These tests will be conducted at the ``Rock Slinger`` test site located just south of U-Plant in the 200 West Area. Tests will be done in a simulated tank farm environment. All testing will be non-radioactive and stand-in materials shall be used to simulate waste tank conditions. Systems will be assembled and arranged in a manner similar to that expected in the field.

Farris, T.R.; Jarecki, T.D.

1995-04-26T23:59:59.000Z

105

Operability test procedure for rotary mode core sampling system {number_sign}4  

SciTech Connect (OSTI)

This document gives instructions for the Operability Testing of the Rotary Mode Core Sampling (RMCS) System No. 4. This document is based on the Operability Test Procedure for RMCS system No. 2 because the basic design is the same for all three systems. Modifications have been made from the original design only when exact duplication was not feasible or design improvements could be incorporated without affecting the operation of the system. Operability testing of the Rotary Mode Core Sampling System No. 4 will verify that functional and operational requirements have been met. Testing will be completed in two phases. The first phase of testing (section 7) will involve operating the truck equipment to demonstrate its capabilities. The second phase of testing (section 8) will take repeated samples in a simulated operation environment. These tests will be conducted at the ``Rock Slinger`` test site located just south of U-Plant in the 200 West Area. Tests will be done in a simulated tank farm environment. All testing will be non-radioactive and stand-in materials shall be used to simulate waste tank conditions. Systems will be assembled and arranged in a manner similar to that expected in the field.

Farris, T.R.; Jarecki, T.D.

1995-04-26T23:59:59.000Z

106

Baseline Design Compliance Matrix for the Rotary Mode Core Sampling System  

SciTech Connect (OSTI)

The purpose of the design compliance matrix (DCM) is to provide a single-source document of all design requirements associated with the fifteen subsystems that make up the rotary mode core sampling (RMCS) system. It is intended to be the baseline requirement document for the RMCS system and to be used in governing all future design and design verification activities associated with it. This document is the DCM for the RMCS system used on Hanford single-shell radioactive waste storage tanks. This includes the Exhauster System, Rotary Mode Core Sample Trucks, Universal Sampling System, Diesel Generator System, Distribution Trailer, X-Ray Cart System, Breathing Air Compressor, Nitrogen Supply Trailer, Casks and Cask Truck, Service Trailer, Core Sampling Riser Equipment, Core Sampling Support Trucks, Foot Clamp, Ramps and Platforms and Purged Camera System. Excluded items are tools such as light plants and light stands. Other items such as the breather inlet filter are covered by a different design baseline. In this case, the inlet breather filter is covered by the Tank Farms Design Compliance Matrix.

LECHELT, J.A.

2000-10-17T23:59:59.000Z

107

Stress intensity factors and fatigue growth of a surface crack in a drill pipe during rotary drilling operation  

E-Print Network [OSTI]

known that drill pipe fatigue in oil-gas drilling operations represents more than 30% of the drill pipeStress intensity factors and fatigue growth of a surface crack in a drill pipe during rotary drilling operation Ngoc Ha Daoa, , Hedi Sellamia aMines ParisTech, 35 rue Saint-Honoré, 77305 Fontainebleau

Paris-Sud XI, Université de

108

Design Review Report for formal review of safety class features of exhauster system for rotary mode core sampling  

SciTech Connect (OSTI)

Report documenting Formal Design Review conducted on portable exhausters used to support rotary mode core sampling of Hanford underground radioactive waste tanks with focus on Safety Class design features and control requirements for flammable gas environment operation and air discharge permitting compliance.

JANICEK, G.P.

2000-06-08T23:59:59.000Z

109

A finite volume method and experimental study of a stator of a piezoelectric traveling wave rotary ultrasonic motor  

E-Print Network [OSTI]

circuit for the stator of a piezo- electric traveling wave rotary ultrasonic motor is presented ultrasonic motor V. Bolborici a, , F.P. Dawson b , M.C. Pugh c a University of Texas at El Paso, Department of Electrical and Computer Engineering, 500 W. University Ave., El Paso, TX 79968, USA b University of Toronto

Pugh, Mary

110

Combustion of high-sulfur coal and anthracite wastes in a rotary kiln combustor with an advanced internal air distributor  

SciTech Connect (OSTI)

Fluid bed combustors have received extensive testing with both high-sulfur coal and anthracite wastes. Rotary kilns are effective and popular devices for waste combustion. The Angelo Rotary Furnace{trademark} has been developed to improve the operation of rotary pyrolyzer/combustor systems through enhanced air distribution, which in this process is defined as staged, swirled combustion air injection. Fourteen of these new furnaces have been installed worldwide. Two units in Thailand, designed for rice hull feed with occasional lignite feed, have been recently started up. An older unit in Pennsylvania is being upgraded with a new, more advanced air distribution system for a series of tests this fall in which inexpensive high-sulfur coal and anthracite wastes will be fired with limestone. The purposes of these tests are to determine the burning characteristics of these two fuels in this system, to discover the Ca/S ratios necessary for operation of a rotary kiln combusting these fuels, and to observe the gas-borne emissions from the furnace. An extensive preliminary design study will be performed on a commercial installation for combustion of anthracite wastes. 14 refs., 5 figs., 1 tab.

Cobb, J.T. Jr. (Pittsburgh Univ., PA (USA)); Ahn, Y.K. (Gilbert/Commonwealth, Inc., Reading, PA (USA)); Angelo, J.F. (Universal Energy International, Inc., Little Rock, AR (USA))

1990-01-01T23:59:59.000Z

111

BID NO: SKA SSLE 009/2011 SUPPLY, DELIVERY AND INSTALLATION OF ROTARY UPS, MV INDOOR SWITCHGEAR AND  

E-Print Network [OSTI]

, and dry-type power transformers only ­ no alternative offers in this regard will be accepted. The contract SWITCHGEAR AND POWER TRANSFORMERS AT THE MeerKAT SITE NEAR CARNARVON, NORTHERN CAPE TENDER NOTICE and Installation of Rotary UPS, MV Indoor Switchgear and Power Transformers at the MeerKAT Site near Carnarvon

Jarrett, Thomas H.

112

An estimation of the penetration rate of rotary drills using the Specific Rock Mass Drillability index  

Science Journals Connector (OSTI)

The main purpose of the present study was to provide a practical, convenient drillability prediction model based on rock mass characteristics, geological sampling from blast holes, and drill operational factors. Empirical equations that predict drill penetration rate have been developed using statistical analyses of data from the Sarcheshmeh Copper Mine. Seven parameters of the rock or rock mass, including uniaxial compressive strength (UCS) of the rock, Schmidt hammer hardness value, quartz content, fragment size (d80), alteration, and joint dip, are included in the model along with two operational parameters of the rotary drill, bit rotational speed and thrust. These parameters were used to predict values of the newly developed Specific Rock Mass Drillability (SRMD) index. Comparing measured SRMD values to those predicted by the multi-parameter linear, or nonlinear, regression models showed good agreement. The correlation coefficients were 0.82 and 0.81, respectively.

Alireza Cheniany; Khoshrou Seyed Hasan; Kourosh Shahriar; Jafar Khademi Hamidi

2012-01-01T23:59:59.000Z

113

Heat transfer and combustion characteristics of a burner with a rotary regenerative heat exchanger  

SciTech Connect (OSTI)

The authors have developed a Rotary Regenerative Combustion (RRX) System, which is coupled with a compact high efficiency regenerative air heat exchanger and a combustion burner. This system contributes to saving energy of fuel firing industrial furnaces and decreases NO{sub x} emission. This technology can be considered as a solution of greenhouse problem. This paper, discusses a compact high efficiency regenerative air heat exchanger in comparison with the existing types of regenerative burners and reverse firing with high momentum fuel jet (with motive fluid) in the furnace. This burner is compact in size, with high fuel efficiency, low NOx emission, easy to operate, and reliable, based on the results of field tests and commercial operations. The authors can say that the RRX system is a regenerative burner of the second generation.

Hirose, Yasuo; Kaji, Hitoshi; Arai, Norio

1998-07-01T23:59:59.000Z

114

New ultra-deepwater rig with dual rotaries will reduce costs  

SciTech Connect (OSTI)

The Discoverer Enterprise, a next generation, ultra-deepwater drill ship with a dual rotary system, will decrease drilling and completion costs by reducing bottom hole assembly (BHA) and tubular preparation time. Transocean Offshore received a contract from Amoco Corp. to build the ultra-deep floating rig and is scheduled to spud its first well in July 1998. It will generally work in water deeper than 6,000 ft. The rig design involves a new approach that addresses the overall well-construction process and equipment required to decrease significantly deepwater drilling time. The Discoverer is the first ultra-deepwater rig designed specifically for handling subsea completions and extended well tests. The paper discusses increased deepwater rig demand, rig construction costs, drillship design, well construction, development drilling, and cost justification.

Cole, J.C.; Herrmann, R.P.; Scott, R.J. [Transocean Offshore Inc., Houston, TX (United States); Shaughnessy, J.M. [Amoco Corp., Houston, TX (United States)

1997-05-26T23:59:59.000Z

115

Method and apparatus for maximizing throughput of indirectly heated rotary kilns  

DOE Patents [OSTI]

An apparatus and method for achieving improved throughput capacity of indirectly heated rotary kilns used to produce pyrolysis products such as shale oils or coal oils that are susceptible to decomposition by high kiln wall temperatures is disclosed. High throughput is achieved by firing the kiln such that optimum wall temperatures are maintained beginning at the point where the materials enter the heating section of the kiln and extending to the point where the materials leave the heated section. Multiple high velocity burners are arranged such that combustion products directly impact on the area of the kiln wall covered internally by the solid material being heated. Firing rates for the burners are controlled to maintain optimum wall temperatures.

Coates, Ralph L; Smoot, L. Douglas; Hatfield, Kent E

2012-10-30T23:59:59.000Z

116

Unsteady-state material balance model for a continuous rotary dissolver  

SciTech Connect (OSTI)

The unsteady-state continuous rotary dissolver material balance code (USSCRD) is a useful tool with which to study the performance of the rotary dissolver under a wide variety of operating conditions. The code does stepwise continuous material balance calculations around each dissolver stage and the digester tanks. Output from the code consists of plots and tabular information on the stagewise concentration profiles of UO{sub 2}, PuO{sub 2}, fission products, Pu(NO{sub 3}){sub 4}, UO{sub 2}(NO{sub 3}){sub 2}, fission product nitrates, HNO{sub 3}, H{sub 2}O, stainless steel, total particulate, and total fuel in pins. Other information about material transfers, stagewise liquid volume, material inventory, and dissolution performance is also provided. This report describes the development of the code, its limitations, key operating parameters, usage procedures, and the results of the analysis of several sets of operating conditions. Of primary importance in this work was the estimation of the steady-state heavy metal inventory in a 0.5-t/d dissolver drum. Values ranging from {similar_to}12 to >150 kg of U + Pu were obtained for a variety of operating conditions. Realistically, inventories are expected to be near the lower end of this range. Study of the variation of operating parameters showed significant effects on dissolver product composition from intermittent solids feed. Other observations indicated that the cycle times for the digesters and shear feed should be closely coupled in order to avoid potential problems with off-specification product. 19 references, 14 tables.

Lewis, B.E.

1984-09-01T23:59:59.000Z

117

Testing to expand the rotary mode core sampling system operating envelope  

SciTech Connect (OSTI)

Rotary sampling using the Rotary Mode Core Sampling System (RMCSS) is constrained by what is referred to as the ``Operating Envelope``. The Operating Envelop defines the maximum downward force, maximum rotational speed and minimum purge gas flow allowed during operation of the RMCSS. The original values of 1170 lb. down force, 55 RPM rotational speed, and 30 SCFM nitrogen purge gas were determined during original envelope testing. This envelope was determined by observing the temperature rise on the bitface while drilling into waste simulants. The maximum temperature in single-shell tanks (SSTS) is considered to be approximately 9O C and the critical drill bit temperature, which is the temperature at which an exothermic reaction could be initiated in the tank waste, was previously determined to be 150 C. Thus, the drill bit temperature increase was limited to 60 C. Thermal properties of these simulants approximated typical properties of waste tank saltcake. Later, more detailed envelope testing which used a pumice block simulant, showed a notably higher temperature rise while drilling. This pumice material, which simulated a ``worst case`` foreign object embedded in the waste, has lower thermal conductivity and lower thermal diffusivity than earlier simulants. These properties caused a slower heat transfer in the pumice than in the previous simulants and consequently a higher temperature rise. The maximum downward force was subsequently reduced to 750 lb (at a maximum 55 RPM and minimum 30 SCFM purge gas flow) which was the maximum value at which the drill bit could be operated and still remain below the 60 C temperature rise.

Witwer, K.S.

1998-01-21T23:59:59.000Z

118

Progress of the ITER equatorial vis/IR wide angle viewing system optical design  

SciTech Connect (OSTI)

The equatorial vis/IR wide angle viewing system is present in four ITER diagnostic equatorial ports. This instrument will cover a large field of view with high spatial and temporal resolutions, to provide real time temperature measurements of plasma facing components, spectral data in the visible range, information on runaway electrons, and pellet tracking. This diagnostic needs to be reliable, precise, and long lasting. Its design is driven by both the tokamak severe environment and the high performances required for machine protection. The preliminary design phase is ongoing. Paramount issues are being tackled, relative to wide spectral band optical design, material choice, and optomechanical difficulties due to the limited space available for this instrument in the ports, since many other diagnostics and services are also present. Recent progress of the diagnostic optical design and status of associated R and D are presented.

Davi, M.; Corre, Y.; Guilhem, D.; Jullien, F.; Reichle, R.; Salasca, S.; Travere, J. M. [Association Euratom CEA, CEA/DSM/IRFM, Cadarache, 13108 Saint-Paul-lez-Durance (France); Cal, E. de la; Manzanares, A.; Pablos, J. L. de [Association Euratom CIEMAT, Av. Complutense 22, 28040 Madrid (Spain); Migozzi, J. B. [JBM Optique, 11 Av. de la division Leclerc, 92310 Sevres (France)

2008-10-15T23:59:59.000Z

119

The SIDE dual VIS-NIR fiber fed spectrograph for the 10.4 m Gran Telescopio Canarias  

E-Print Network [OSTI]

SIDE (Super Ifu Deployable Experiment) is proposed as second-generation, common-user instrument for the GTC. It will be a low and intermediate resolution fiber fed spectrograph, highly efficient in multi-object and 3D spectroscopy. The low resolution part (R = 1500, 4000) is called Dual VIS-NIR because it will observe in the VIS and NIR bands (0.4 ~V 1.7 microns) simultaneously. Because of the large number of fibers, a set of ~10 identical spectrographs is needed, each with a mirror collimator, a dichroic and two refractive cameras. The cameras are optimized for 0.4 - 0.95 microns (VIS) and 0.95 - 1.7 microns (NIR) respectively.

Rabaza, O; Ubierna, M; Sánchez, J; Azzaro, M; Prada, F

2008-01-01T23:59:59.000Z

120

American Institute of Aeronautics and Astronautics, Infotech@Aerospace Conference, Paper No. 2005-7077 A Small Semi-Autonomous Rotary-Wing Unmanned Air  

E-Print Network [OSTI]

-7077 1 A Small Semi-Autonomous Rotary-Wing Unmanned Air Vehicle (UAV) Scott D. Hanford* , Lyle N. Long such as the Fire Scout and Hummingbird currently have the capability to fly autonomously, land in a specific

Note: This page contains sample records for the topic "vis cous rotary" from the National Library of EnergyBeta (NLEBeta).
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121

High vacuum indirectly-heated rotary kiln for the removal and recovery of mercury from air pollution control scrubber waste  

SciTech Connect (OSTI)

SepraDyne corporation (Denton, TX, US) has conducted pilot-scale treatability studies of dewatered acid plant blowdown sludge generated by a copper smelter using its recently patented high temperature and high vacuum indirectly-heated rotary retort technology. This unique rotary kiln is capable of operating at internal temperatures up to 850 C with an internal pressure of 50 torr and eliminates the use of sweep gas to transport volatile substances out of the retort. By removing non-condensables such as oxygen and nitrogen at relatively low temperatures and coupling the process with a temperature ramp-up program and low temperature condensation, virtually all of the retort off-gases produced during processing can be condensed for recovery. The combination of rotation, heat and vacuum produce the ideal environment for the rapid volatilization of virtually all organic compounds, water and low-to-moderate boiling point metals such as arsenic, cadmium and mercury.

Hawk, G.G.; Aulbaugh, R.A. [Scientific Consulting Labs., Inc., Farmers Branch, TX (United States)] [Scientific Consulting Labs., Inc., Farmers Branch, TX (United States)

1998-12-31T23:59:59.000Z

122

System design specification for rotary mode core sample trucks No. 2, 3, and 4 programmable logic controller  

SciTech Connect (OSTI)

The system this document describes controls several functions of the Core Sample Truck(s) used to obtain nuclear waste samples from various underground storage tanks at Hanford. The system will monitor the sampling process and provide alarms and other feedback to insure the sampling process is performed within the prescribed operating envelope. The intended audience for this document is anyone associated with rotary or push mode core sampling. This document describes the Alarm and Control logic installed on Rotary Mode Core Sample Trucks (RMCST) {number_sign}2, 3, and 4. It is intended to define the particular requirements of the RMCST alarm and control operation (not defined elsewhere) sufficiently for detailed design to implement on a Programmable Logic Controller (PLC).

Dowell, J.L.; Akers, J.C.

1995-12-31T23:59:59.000Z

123

Surface Hopping Excited-State Dynamics Study of the Photoisomerization of a Light-Driven Fluorene Molecular Rotary Motor  

Science Journals Connector (OSTI)

Surface Hopping Excited-State Dynamics Study of the Photoisomerization of a Light-Driven Fluorene Molecular Rotary Motor ... The potential energy surfaces of the ground electronic state (S0) and the first singlet excited state (S1) are explored by semiempirical quantum-chemical calculations using the orthogonalization-corrected OM2 Hamiltonian in combination with a multireference configuration interaction (MRCI) treatment. ... Photoswitching of simple photochromic molecules attracts substantial attention because of its possible role in future photon-driven molecular electronics. ...

Andranik Kazaryan; Zhenggang Lan; Lars V. Schäfer; Walter Thiel; Michael Filatov

2011-05-24T23:59:59.000Z

124

Mercury + VisIt: Integration of a Real-Time Graphical Analysis Capability into a Monte Carlo Transport Code  

SciTech Connect (OSTI)

Validation of the problem definition and analysis of the results (tallies) produced during a Monte Carlo particle transport calculation can be a complicated, time-intensive processes. The time required for a person to create an accurate, validated combinatorial geometry (CG) or mesh-based representation of a complex problem, free of common errors such as gaps and overlapping cells, can range from days to weeks. The ability to interrogate the internal structure of a complex, three-dimensional (3-D) geometry, prior to running the transport calculation, can improve the user's confidence in the validity of the problem definition. With regard to the analysis of results, the process of extracting tally data from printed tables within a file is laborious and not an intuitive approach to understanding the results. The ability to display tally information overlaid on top of the problem geometry can decrease the time required for analysis and increase the user's understanding of the results. To this end, our team has integrated VisIt, a parallel, production-quality visualization and data analysis tool into Mercury, a massively-parallel Monte Carlo particle transport code. VisIt provides an API for real time visualization of a simulation as it is running. The user may select which plots to display from the VisIt GUI, or by sending VisIt a Python script from Mercury. The frequency at which plots are updated can be set and the user can visualize the simulation results as it is running.

O'Brien, M J; Procassini, R J; Joy, K I

2009-03-09T23:59:59.000Z

125

Report on Testing to Expand the Rotary Mode Core Sampling Operating Envelope  

SciTech Connect (OSTI)

The Tank Waste Remediation System (TWRS) Characterization Equipment Group requested that the Numatec Hanford Corporation--Engineering Testing Laboratory (ETL) perform Rotary Mode Core Sampling (RMCS) Operating Envelope (OE) testing. This testing was based upon Witwer 1998a and was performed at different time periods between May and September 1998. The purpose of this testing was to raise the maximum down force limit for rotary mode core sampling as outlined in the current OE. If testing could show that a higher down force could be used while drilling into a concrete/pumice block simulant while still remaining below the 60 C limitation, then the current OE could be revised to include the new, higher, down force limit. Although the Test Plan discussed varying the purge flow rate and rotation rate to find ''optimal'' drilling conditions, the number of drill bits that could be destructively tested was limited. Testing was subsequently limited in scope such that only the down force would be varied while the purge flow rate and rotation rate were kept constant at 30 scfm and 55 rpm respectively. A second objective, which was not part of the original test plan, was added prior to testing. The Bit Improvement testing, mentioned previously, revealed that the drill bits tested in the OE testing were made of a slightly different metal matrix than the ones currently used. The older bits, a Longyear part number 100IVD/5 (/5 bit), had tungsten carbide mixed into the metal matrix that forms the cutting teeth. The currently used bits, Longyear part number 100IVD/8 (/8 bit), instead have tungsten metal in the matrix and no tungsten carbide. Rockwell C hardness testing showed that the /5 bit was significantly harder than the /8 bit, with values of /8 vs. 8, respectively. The change from the /5 bit to the /8 bit was made immediately after the previous OE testing in 1996 because of sparking concerns with the tungsten carbide in the /5 bit. This difference in hardness between the two bit materials was discovered in the Bit Improvement Testing and was expected to affect this OE testing. The second objective, therefore, was to quantify what affect this change in material had and define the OE, based on the current /8 bit design rather than the old /5 bit design.

BOGER, R.M.

1999-12-13T23:59:59.000Z

126

The translucency of dental composites investigated by UV-VIS spectroscopy  

SciTech Connect (OSTI)

Translucency is the property of a material to partially transmit and diffuse incident light, and can be described as a partial opacity or a state between complete opacity and complete transparency. The purpose of this study is to evaluate the translucency index of resin composites according to their chemical structure and to the light source used for curing. Our study was achieved on four commercial composite samples (30 mm × 2 mm) cured with two different lamps (Optilux - halogen bulb and Ultralight - LED). Measurements were made with a UV-VIS spectrophotometer, and the reflection spectrum was recorded in the 380-770 nm region on white and black, compared with a SPECTRALON standard white. For all materials cured with the LED lamp on the glossy sides, the best results were given by Tetric Evo Ceram followed by Filtek Supreme, Restacril{sup RO} and Premise. The measurements made on samples cured with an Optilux lamp, to the smooth and rough sides of the samples, revealed that the highest index of translucency is provided by Tetric Evo Ceram on the smooth side, followed by Filtek Supreme, Restacril{sup RO} and Premises. We can say that the translucency of the composites is mostly determined by the chemical composition of the material, which is observed from transmittance values recorded for each sample, and by the source of radiation applied on the sample.

Dumitrescu, L. Silaghi [Babes Bolyai University -Raluca Ripan Chemistry Research Institute, Cluj-Napoca (Romania)] [Babes Bolyai University -Raluca Ripan Chemistry Research Institute, Cluj-Napoca (Romania); Pastrav, O. [Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca (Romania)] [Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca (Romania); Prejmerean, C.; Prodan, D.; Boboia, S.; Codruta, S.; Moldovan, M. [Babes Bolyai University - Raluca Ripan Chemistry Research Institute, Cluj-Napoca (Romania)] [Babes Bolyai University - Raluca Ripan Chemistry Research Institute, Cluj-Napoca (Romania)

2013-11-13T23:59:59.000Z

127

Method and system including a double rotary kiln pyrolysis or gasification of waste material  

DOE Patents [OSTI]

A method of destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500.degree. C. to heat the particulate material to a temperature in the range of from about 200.degree. C. to about 900.degree. C. in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end. The reduced particulates including char are transferred to the annular space between the inner and the outer rotating kilns near the other end of the inner rotating kiln and moved longitudinally in the annular space from near the other end toward the one end in the presence of oxygen to combust the char at an elevated temperature to produce a waste material including ash. Also, heat is provided which is transferred to the inner kiln. The waste material including ash leaves the outer rotating kiln near the one end and the pyrolysis vapor leaves through the particulate material inlet.

McIntosh, Michael J. (Bolingbrook, IL); Arzoumanidis, Gregory G. (Naperville, IL)

1997-01-01T23:59:59.000Z

128

A method and system including a double rotary kiln pyrolysis or gasification of waste material  

SciTech Connect (OSTI)

A method is described for destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500 C to heat the particulate material to a temperature in the range of from about 200 C to about 900 C in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end. The reduced particulates including char are transferred to the annular space between the inner and the outer rotating kilns near the other end of the inner rotating kiln and moved longitudinally in the annular space from near the other end toward the one end in the presence of oxygen to combust the char at an elevated temperature to produce a waste material including ash. Also, heat is provided which is transferred to the inner kiln. The waste material including ash leaves the outer rotating kiln near the one end and the pyrolysis vapor leaves through the particulate material inlet.

McIntosh, M.J.; Arzoumanidis, G.G.

1995-12-31T23:59:59.000Z

129

Method and system including a double rotary kiln pyrolysis or gasification of waste material  

DOE Patents [OSTI]

A method is described for destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500 C to heat the particulate material to a temperature in the range of from about 200 C to about 900 C in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end. The reduced particulates including char are transferred to the annular space between the inner and the outer rotating kilns near the other end of the inner rotating kiln and moved longitudinally in the annular space from near the other end toward the one end in the presence of oxygen to combust the char at an elevated temperature to produce a waste material including ash. Also, heat is provided which is transferred to the inner kiln. The waste material including ash leaves the outer rotating kiln near the one end and the pyrolysis vapor leaves through the particulate material inlet. 5 figs.

McIntosh, M.J.; Arzoumanidis, G.G.

1997-09-02T23:59:59.000Z

130

Prognostics and health management design for rotary machinery systems—Reviews, methodology and applications  

Science Journals Connector (OSTI)

Abstract Much research has been conducted in prognostics and health management (PHM), an emerging field in mechanical engineering that is gaining interest from both academia and industry. Most of these efforts have been in the area of machinery PHM, resulting in the development of many algorithms for this particular application. The majority of these algorithms concentrate on applications involving common rotary machinery components, such as bearings and gears. Knowledge of this prior work is a necessity for any future research efforts to be conducted; however, there has not been a comprehensive overview that details previous and on-going efforts in PHM. In addition, a systematic method for developing and deploying a PHM system has yet to be established. Such a method would enable rapid customization and integration of PHM systems for diverse applications. To address these gaps, this paper provides a comprehensive review of the PHM field, followed by an introduction of a systematic PHM design methodology, 5S methodology, for converting data to prognostics information. This methodology includes procedures for identifying critical components, as well as tools for selecting the most appropriate algorithms for specific applications. Visualization tools are presented for displaying prognostics information in an appropriate fashion for quick and accurate decision making. Industrial case studies are included in this paper to show how this methodology can help in the design of an effective PHM system.

Jay Lee; Fangji Wu; Wenyu Zhao; Masoud Ghaffari; Linxia Liao; David Siegel

2014-01-01T23:59:59.000Z

131

Apparatus and methods for cooling and sealing rotary helical screw compressors  

DOE Patents [OSTI]

In a compression system which incorporates a rotary helical screw compressor, and for any type of gas or refrigerant, the working liquid oil is atomized through nozzles suspended in, and parallel to, the suction gas flow, or alternatively the nozzles are mounted on the suction piping. In either case, the aim is to create positively a homogeneous mixture of oil droplets to maximize the effectiveness of the working liquid oil in improving the isothermal and volumetric efficiencies. The oil stream to be atomized may first be degassed at compressor discharge pressure by heating within a pressure vessel and recovering the energy added by using the outgoing oil stream to heat the incoming oil stream. The stripped gas is typically returned to the compressor discharge flow. In the preferred case, the compressor rotors both contain a hollow cavity through which working liquid oil is injected into channels along the edges of the rotors, thereby forming a continuous and positive seal between the rotor edges and the compressor casing. In the alternative method, working liquid oil is injected either in the same direction as the rotor rotation or counter to rotor rotation through channels in the compressor casing which are tangential to the rotor edges and parallel to the rotor center lines or alternatively the channel paths coincide with the helical path of the rotor edges. 14 figs.

Fresco, A.N.

1997-08-05T23:59:59.000Z

132

Apparatus and methods for cooling and sealing rotary helical screw compressors  

DOE Patents [OSTI]

In a compression system which incorporates a rotary helical screw compressor, and for any type of gas or refrigerant, the working liquid oil is atomized through nozzles suspended in, and parallel to, the suction gas flow, or alternatively the nozzles are mounted on the suction piping. In either case, the aim is to create positively a homogeneous mixture of oil droplets to maximize the effectiveness of the working liquid oil in improving the isothermal and volumetric efficiencies. The oil stream to be atomized may first be degassed at compressor discharge pressure by heating within a pressure vessel and recovering the energy added by using the outgoing oil stream to heat the incoming oil stream. The stripped gas is typically returned to the compressor discharge flow. In the preferred case, the compressor rotors both contain a hollow cavity through which working liquid oil is injected into channels along the edges of the rotors, thereby forming a continuous and positive seal between the rotor edges and the compressor casing. In the alternative method, working liquid oil is injected either in the same direction as the rotor rotation or counter to rotor rotation through channels in the compressor casing which are tangential to the rotor edges and parallel to the rotor centerlines or alternatively the channel paths coincide with the helical path of the rotor edges.

Fresco, Anthony N. (P.O. Box 734, Upton, NY 11973)

1997-01-01T23:59:59.000Z

133

EVALUATION OF SUPPLEMENTAL PRE-TREATMENT DEVELOPMENT REQUIREMENTS TO MEET TRL 6 ROTARY MICROFILTRATION  

SciTech Connect (OSTI)

In spring 2011, the Technology Maturation Plan (TMP) for the Supplemental Treatment Project (RPP-PLAN-49827, Rev. 0), Technology Maturation Plan for the Treatment Project (T4S01) was developed. This plan contains all identified actions required to reach technical maturity for a field-deployable waste feed pretreatment system. The supplemental pretreatment system has a filtration and a Cs-removal component. Subsequent to issuance of the TMP, rotary microfiltration (RMF) has been identified as the prime filtration technology for this application. The prime Cs-removal technology is small column ion exchange (ScIX) using spherical resorcinol formaldehyde (sRF) as the exchange resin. During fiscal year 2011 (FY2011) some of the tasks identified in the TMP have been completed. As of September 2011, the conceptual design package has been submitted to DOE as part of the critical decision (CD-1) process. This document describes the remaining tasks identified in the TMP to reach technical maturity and evaluates the validity of the proposed tests to fill the gaps as previously identified in the TMP. The potential vulnerabilities are presented and the completed list of criteria for the DOE guide DOE G 413.3-4 different technology readiness levels are added in an attachment. This evaluation has been conducted from a technology development perspective - all programmatic and manufacturing aspects were excluded from this exercise. Compliance with the DOE G 413.3-4 programmatic and manufacturing requirements will be addressed directly by the Treatment Project during the course of engineering design. The results of this evaluation show that completion of the proposed development tasks in the TMP are sufficient to reach TRL 6 from a technological point of view. The tasks involve actual waste tests using the current baseline configuration (2nd generation disks, 40 psi differential pressure, 30 C feed temperature) and three different simulants - the PEP, an AP-Farm and an S-saltcake. Based on FY2011 dollars used in the TMP, these tests will have ROM costs of $950K and require up to 10 months to complete. Completion of the simulant testing will satisfy the TRL 5 and TRL 6 criteria that are related to system testing with materials that represent the full range of properties in a relevant environment.

HUBER HJ

2011-10-03T23:59:59.000Z

134

EVALUATION OF AP-FARM SIMULANT COMPOSITION FOR ROTARY MICROFILTER TESTING  

SciTech Connect (OSTI)

This document identifies the feed composition of a Hanford AP tank farm simulant for rotary microfiltration testing. The composition is based on an Hanford Tank Waste Operations Simulator (HTWOS) model run in combination with Tank Waste Information Network (TWINS) data and mineralogical studies of actual waste solids. The feed simulant is intended to be used in test runs at SRNL. The simulant will be prepared in two parts: (1) A supernate, composed of water-soluble salts and (2) The undissolved (actually, undissolvable) solids. Test slurries with distinct solids concentrations (e.g., 0.5, 5 and 10 wt%) are then prepared as needed. The base for the composition of supernate and solids is the modeled feed sequence for a deployment scenario of the Supplemental Pretreatment units within AP-farm. These units comprise a filtration part, the RMF, and a Cesium-removal part, a Small Column Ion Exchange. The primary use of this simulant is for filtration testing - however, in case that it is also used for ion-exchange tests, the amount of Cs-137 that would need to be added is available in Table 1 and Attachment 3. A modified model run (MMR-049) of the Hanford Tank Waste Operations Simulator (HTWOS) system plan 6 case 3 was performed to identify the feed sequence. Case 3 assumed supplemental treatment besides the low activity waste (LAW) melter with supplemental pretreatment supporting the pretreatment facility. The MMR did not cap the duration of supplemental pretreatment to 15 months, but rather used it throughout the entire treatment mission as an add-on option to the pretreatment facility at the Waste Treatment and Immobilization Plant (WTP). Tank 241-AP-105 (AP-105) was chosen as the feed tank to the filtration unit. Other parameters included a fixed minimum of 0.5 wt% solids in the feed and a maximum Na-concentration of 5M in the supernate. The solids rejection from the filtration unit was set to 99.99% and the maximum allowed amount of solids within tank AP-105 was set to 10 wt%. A comprehensive description of the run and the full suite of results were issued as SVF-2364-00. The list of individual feed events including the amounts of liquid and solids transferred for the first five years is added as Attachment 2; the chemical composition of the supernate feed comprises Attachment 3. For the simulant composition, only the first five years of proposed feed delivery were taken into account. The main outcome of MMR-049 was that for the first five years, the feed would come mostly from AP-farms. Multiple delivery campaigns to AP-105 are included in this average feed, while minimizing the amount of contributing tanks to the solids in the feed mix.

HUBER HJ

2011-09-19T23:59:59.000Z

135

TESTING AND EVALUATION OF THE MODIFIED DESIGN OF THE 25-DISK ROTARY MICROFILTER  

SciTech Connect (OSTI)

This report details redesign of a commercially available rotary microfilter to meet the operational and maintenance requirements for radioactive service. Personnel developed the design and coordinated procurement of two filters followed by testing of one unit. System testing examined the ability to rinse soluble material from the system, filtration performance using several insoluble solids loadings, effectiveness in washing sludge, amount of wear to parts and maintenance of the system including the insertion and removal of the filter stack, and the ability to flush solids from the system. The test program examined flushing the filter for soluble material by filling the system with a Rhodamine WT dye solution. Results showed that draining the system and rinsing with 50 gallons of water resulted in grater than 100X reduction of the dye concentration. Personnel determined filter performance using various amounts of insoluble sludge solids ranging from 0.06 to 15 weight percent (wt%) insoluble solids in a 3 molar (M) sodium simulated supernate. Through approximately 120 hours of start-and-stop (i.e., day shift) operation and various insoluble solids loadings, the filter produced filtration rates between 3 and 7 gallons per minute (gpm) (0.12-0.29 gpm/ft{sup 2}) for a 25-disk filter. Personnel washed approximately 80 gallons of simulated sludge using 207 gallons of inhibited water. Washing occurred at constant volume with wash water fed to a well mixed tank at the same rate as filtrate removal. Performance measurement involved collecting and analyzing samples throughout the washing for density and sodium content. Results showed an effective washing, mimicking a predicted dilution calculation for a well mixed tank and reducing the sodium concentration from 3.2 M to less than 0.3 M. Filtration rates during the washing process ranged between 3 and 4.3 gpm for one filter unit. The filter system then concentrated the washed 15 wt% insoluble solids slurry to approximately 20 wt% insoluble solids with no operational problems with the exception of the entrainment of air due to leaking packing in the feed pump. Prior to the air entrainment, the filtration rate was approximately 4.2 gpm for one filter assembly with the process fluid temperature adjusted to 35 C. Personnel measured the turbidity of filtrate samples from all phases of testing. All samples measured were less than 3 NTU, with the majority of samples less than 1 NTU. Thus, all measurements fell below the process acceptance criterion of less than 5 NTU. After slurry operations, personnel rinsed the filter with the equivalent of 250 gallons of water by re-circulating 50 gallons of water. The residual sludge solids remaining on the filter stack weighed approximately 685 grams. This amount of solids corresponds to an equivalent activity of 15.1 curies (Ci) beta and 0.38 Ci gamma radiation dose for Sludge Batch 4. Workers completely disassembled the filter system and examined it for signs of wear and component operation. An evaluation by a John Crane Inc. representative concluded that the wear observed on the mechanical seal resulted primarily from the numerous stops and starts, the abrasive nature of the process fluid and the possibility that the seal faces did not receive enough lubrication from the process fluid. No measurable slurry bypassed the mechanical seal. While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement with an air seal might be expected to increase lifetime to five years. The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Minor adjustments to the alignment with shims and replacement of the graphite bushing with a superior material will greatly reduce this wear pattern.

Herman, D; Michael Poirier, M; Samuel Fink, S

2006-09-29T23:59:59.000Z

136

SERI Desiccant Cooling Test Facility. Status report. Preliminary data on the performance of a rotary parallel-passage silica-gel dehumidifier  

SciTech Connect (OSTI)

This report describes the SERI Desiccant Cooling Test Facility. The facility can test bench-scale rotary dehumidifiers over a wide range of controlled conditions. We constructed and installed in the test loop a prototype parallel-passage rotary dehumidifier that has spirally wound polyester tape coated with silica gel. The initial tests gave satisfactory results indicating that approximately 90% of the silica gel was active and the overall Lewis number of the wheel was near unity. The facility has several minor difficulties including an inability to control humidity satisfactorily and nonuniform and highly turbulent inlet velocities. To completely validate the facility requires a range of dehumidifier designs. Several choices are available including constructing a second parallel-passage dehumidifier with the passage spacing more uniform.

Schultz, K.J.

1986-04-01T23:59:59.000Z

137

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

138

Engineering task plan for the development, fabrication and installation of rotary mode core sample truck grapple hoist box level wind system  

SciTech Connect (OSTI)

This Engineering Task Plan is to design, generate fabrication drawings, fabricate, test, and install the grapple hoist level wind system for Rotary Mode Core Sample Trucks (RMCST) 3 and 4. Deliverables will include generating fabrication drawings, fabrication of one level wind system, updating fabrication drawings as required, and installation of level wind systems on RMCST 3 or 4. The installation of the level wind systems will be done during a preventive maintenance outage.

BOGER, R.M.

1999-05-12T23:59:59.000Z

139

VisIO: enabling interactive visualization of ultra-scale, time-series data via high-bandwidth distributed I/O systems  

SciTech Connect (OSTI)

Petascale simulations compute at resolutions ranging into billions of cells and write terabytes of data for visualization and analysis. Interactive visuaUzation of this time series is a desired step before starting a new run. The I/O subsystem and associated network often are a significant impediment to interactive visualization of time-varying data; as they are not configured or provisioned to provide necessary I/O read rates. In this paper, we propose a new I/O library for visualization applications: VisIO. Visualization applications commonly use N-to-N reads within their parallel enabled readers which provides an incentive for a shared-nothing approach to I/O, similar to other data-intensive approaches such as Hadoop. However, unlike other data-intensive applications, visualization requires: (1) interactive performance for large data volumes, (2) compatibility with MPI and POSIX file system semantics for compatibility with existing infrastructure, and (3) use of existing file formats and their stipulated data partitioning rules. VisIO, provides a mechanism for using a non-POSIX distributed file system to provide linear scaling of 110 bandwidth. In addition, we introduce a novel scheduling algorithm that helps to co-locate visualization processes on nodes with the requested data. Testing using VisIO integrated into Para View was conducted using the Hadoop Distributed File System (HDFS) on TACC's Longhorn cluster. A representative dataset, VPIC, across 128 nodes showed a 64.4% read performance improvement compared to the provided Lustre installation. Also tested, was a dataset representing a global ocean salinity simulation that showed a 51.4% improvement in read performance over Lustre when using our VisIO system. VisIO, provides powerful high-performance I/O services to visualization applications, allowing for interactive performance with ultra-scale, time-series data.

Mitchell, Christopher J [Los Alamos National Laboratory; Ahrens, James P [Los Alamos National Laboratory; Wang, Jun [UCF

2010-10-15T23:59:59.000Z

140

In Vitro Comparison in a Manikin Model: Increasing Apical Enlargement with K3 and K3XF Rotary Instruments  

Science Journals Connector (OSTI)

AbstractIntroduction The aim of the study was to compare the K3 and K3XF systems (SybronEndo, Glendora, CA) after 1 and 2 uses by evaluating apical transportation, working length loss, and working time in a manikin model. Methods Mesial canals of 40 extracted first mandibular molars were instrumented. Radiographs taken after instrumentation with #25, #30, #35, and #40 files were superimposed on the preoperative image in both mesiodistal and buccolingual angulations. AutoCAD (Autodesk Inc, San Rafael, CA) was used to measure working length loss and apical transportation at 0, 0.5, and 1 mm from the working length (WL). The working time was measured. Group comparison was analyzed using post hoc Tukey honestly significant difference tests (P < .05). Results No significant differences were found in apical transportation, working length loss between K3 and K3XF systems, or between the number of uses. Significant differences were found when canal enlargement was performed to a #35–40 (P < .05). K3 instrumentation performed significantly faster (29.6 ± 15.4) than with the K3XF system (40.2 ± 17.7) (P < .05). No differences were observed in working time when comparing the number of uses. Conclusions K3 and R-phase K3XF rotary systems shaped curved root canals safely with minimal apical transportation, even up to a 40/04 file.

Juan Gonzalo Olivieri; Eva Stöber; Marc García Font; Jose Antonio González; Pablo Bragado; Miguel Roig; Fernando Duran-Sindreu

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Enumeration of Juvenile Salmonids in the Okanogan Basin Using Rotary Screw Traps, Performance Period: March 15, 2006 - July 15, 2006.  

SciTech Connect (OSTI)

The Colville Tribes identified the need for collecting baseline census data on the timing and abundance of juvenile salmonids in the Okanogan River basin for the purpose of documenting local fish populations, augmenting existing fishery data and assessing natural production trends of salmonids. This report documents and assesses the pilot year of rotary trap capture of salmonid smolts on the Okanogan River. The project is a component of the Colville Tribes Okanogan Basin Monitoring and Evaluation Program (OBMEP) which began in 2004. Trapping for outmigrating fish began on 14 March 2006 and continued through 11 July 2006. Anadromous forms of Oncorhynchus, including summer steelhead (O. mykiss), Chinook (O. tshawytscha), and sockeye (O. nerka), were targeted for this study; all have verified, natural production in the Okanogan basin. Both 8-ft and 5-ft rotary screw traps were deployed on the Okanogan River from the Highway 20 Bridge and typically fished during evening hours or 24 hours per day, depending upon trap position and discharge conditions. Juvenile Chinook salmon were the most abundant species trapped in 2006 (10,682 fry and 2,024 smolts), followed by sockeye (205 parr and 3,291 smolts) and steelhead (1 fry and 333 smolts). Of the trapped Chinook, all fry were wild origin and all but five of the smolts were hatchery-reared. All trapped sockeye were wild origin and 88% of the steelhead smolts were hatchery-reared. Mark-recapture experiments were conducted using Chinook fry and hatchery-reared steelhead smolts (sockeye were not used in 2006 because the peak of the juvenile migration occurred prior to the onset of the mark-recapture experiments). A total of 930 chinook fry were marked and released across eight separate release dates (numbers of marked Chinook fry released per day ranged from 34 to 290 fish). A total of 11 chinook fry were recaptured for an overall trap efficiency of 1.18%. A total of 710 hatchery-reared steelhead were marked and released across three separate release dates (numbers of steelhead released per day ranged from 100 to 500 fish). A total of 12 steelhead were recaptured for an overall trap efficiency of 1.69%. A pooled Peterson estimator with a Chapman modification was used to produce population estimates for wild Chinook fry and hatchery-reared steelhead based on the results of the mark-recapture experiments. The 2006 populations for Chinook and steelhead were estimated to be 381,554 (95% confidence intervals: 175,731-587,377) and 14,164 (6,999-21,330), respectively. The population estimates were based on the periods in which mark-recapture experiments were initialized through the end of the trapping season (10 May for steelhead and 1 June for Chinook).

Johnson, Peter N.; Rayton, Michael D.

2007-05-01T23:59:59.000Z

142

A 12-MW-scale pilot study of in-duct scrubbing (IDS) using a rotary atomizer  

SciTech Connect (OSTI)

A low-cost, moderate-removal efficiency, flue gas desulfurization (FGD) technology was selected by the US Department of Energy for pilot demonstration in its Acid Rain Precursor Control Technology Initiative. The process, identified as In-Duct Scrubbing (IDS), applies rotary atomizer techniques developed for lime-based spray dryer FGD while utilizing existing flue gas ductwork and particulate collectors. IDS technology is anticipated to result in a dry desulfurization process with a moderate removal efficiency (50% or greater) for high-sulfur coal-fired boilers. The critical elements for successful application are: (1) adequate mixing of sorbent droplets with flue gas for efficient reaction contact, (2) sufficient residence time to produce a non-wetting product, and (3) appropriate ductwork cross-sectional area to prevent deposition of wet reaction products before particle drying is comple. The ductwork in many older plants, previously modified to meet 1970 Clean Air Act requirements for particulate control, usually meet these criteria. A 12 MW-scale IDS pilot plant was constructed at the Muskingum River Plant of the American Electric Power System. The pilot plant, which operates from a slipstrem attached to the air-preheater outlet duct from the Unit 5 boiler at the Muskingum River Plant (which burns about 4% sulfur coal), is equipped with three atomizer stations to test the IDS concept in vertical and horizontal configurations. In addition, the pilot plant is equipped to test the effect of injecting IDS off- product upstream of the atomizer, on SO{sub 2}and NO{sub x} removals.

Samuel, E.A.; Murphy, K.R.; Demian, A.

1989-11-01T23:59:59.000Z

143

A safety assessment of rotary mode core sampling in flammable gas single shell tanks: Hanford Site, Richland, Washington  

SciTech Connect (OSTI)

This safety assessment (SA) addresses each of the required elements associated with the installation, operation, and removal of a rotary-mode core sampling (RMCS) device in flammable-gas single-shell tanks (SSTs). The RMCS operations are needed in order to retrieve waste samples from SSTs with hard layers of waste for which push-mode sampling is not adequate for sampling. In this SA, potential hazards associated with the proposed action were identified and evaluated systematically. Several potential accident cases that could result in radiological or toxicological gas releases were identified and analyzed and their consequences assessed. Administrative controls, procedures and design changes required to eliminate or reduce the potential of hazards were identified. The accidents were analyzed under nine categories, four of which were burn scenarios. In SSTS, burn accidents result in unacceptable consequences because of a potential dome collapse. The accidents in which an aboveground burn propagates into the dome space were shown to be in the ``beyond extremely unlikely`` frequency category. Given the unknown nature of the gas-release behavior in the SSTS, a number of design changes and administrative controls were implemented to achieve these low frequencies. Likewise, drill string fires and dome space fires were shown to be very low frequency accidents by taking credit for the design changes, controls, and available experimental and analytical data. However, a number of Bureau of Mines (BOM) tests must be completed before some of the burn accidents can be dismissed with high confidence. Under the category of waste fires, the possibility of igniting the entrapped gases and the waste itself were analyzed. Experiments are being conducted at the BOM to demonstrate that the drill bit is not capable of igniting the trapped gas in the waste. Laboratory testing and thermal analysis demonstrated that, under normal operating conditions, the drill bit will not create high enough temperatures to initiate a propagating reaction in the waste. However, system failure that coincides in a waste layer with high organic content and low moisture may initiate an exothermic reaction in the waste. Consequently, a conservative approach based on the current state of the knowledge resulted in limiting the drilling process to a subset of the flammable-gas tanks. Accidents from the chemical reactions and criticality category are shown to result in acceptable risk. A number of accidents are shown to potentially result in containment (tank liner) breach below the waste level. Mitigative features are provided for these accidents. Gas-release events without burn also are analyzed, and radiological and toxicological consequences are shown to be within risk guidelines. Finally, the consequences of potential spills are shown to be within the risk guidelines.

Raymond, R.E.

1996-04-15T23:59:59.000Z

144

VisPort: Web-Based Access to Community-Specific Visualization Functionality [Shedding New Light on Exploding Stars: Visualization for TeraScale Simulation of Neutrino-Driven Supernovae (Final Technical Report)  

SciTech Connect (OSTI)

The VisPort visualization portal is an experiment in providing Web-based access to visualization functionality from any place and at any time. VisPort adopts a service-oriented architecture to encapsulate visualization functionality and to support remote access. Users employ browser-based client applications to choose data and services, set parameters, and launch visualization jobs. Visualization products â?? typically images or movies â?? are viewed in the userâ??s standard Web browser. VisPort emphasizes visualization solutions customized for specific application communities. Finally, VisPort relies heavily on XML, and introduces the notion of visualization informatics -? the formalization and specialization of information related to the process and products of visualization.

Baker, M Pauline

2007-06-30T23:59:59.000Z

145

Design, implementation, and on-sky performance of an advanced apochromatic triplet atmospheric dispersion corrector for the Magellan adaptive optics system and VisAO camera  

E-Print Network [OSTI]

We present the novel design, laboratory verification, and on-sky performance of our advanced triplet atmospheric dispersion corrector (ADC), an important component of the Magellan Adaptive Optics system (MagAO), which recently achieved first light in December 2012. High-precision broadband (0.5-1.0 microns) atmospheric dispersion correction at visible wavelengths is essential both for wavefront sensing (WFS) on fainter guide stars, and for performing visible AO science using our VisAO science camera. At 2 airmasses (60 degrees from zenith) and over the waveband 500-1000 nm, our triplet design produces a 57% improvement in geometric rms spot size, a 33% improvement in encircled energy at 20 arcsec radius, and a 62% improvement in Strehl ratio when compared to a conventional doublet design. This triplet design has been fabricated, tested in the lab, and integrated into the MagAO WFS and the VisAO science camera. We present on-sky results of the ADC in operation with the MagAO system. We also present a zero-beam...

Kopon, Derek; Males, Jared R; Gasho, Victor

2013-01-01T23:59:59.000Z

146

Optimization of the multivariate calibration of a Vis–NIR sensor for the on-line monitoring of marine diesel engine lubricating oil by variable selection methods  

Science Journals Connector (OSTI)

Abstract This paper deals with the description of the optimization by variable selection methods of the multivariate calibration process of a low-cost Visible–Near Infrared (400–1100 nm) sensor, developed for the on-line monitoring of the insoluble content in diesel marine engine lubricating oil. The performance of the calibration model developed for the Vis–NIR sensor was compared with the performance of the calibration model developed with spectra obtained with a UV/Vis–NIR laboratory spectrometer. The calibration results obtained with the two devices were compared to determine the limitations of the sensor system with respect to the laboratory equipment. First, the spectra were correlated with the insoluble content analyzed in Wearcheckiberica's oil laboratories obtaining a calibration model based on Partial Least Squares-regression (PLSR). Once the pre-processing strategy had been defined, the most significant predictor variables were chosen with the help of Martens uncertainty test, interval Partial Least Squares (iPLS) and Genetic Algorithms (GA) variable selection techniques. Finally, the two models were compared based on the number of latent variables of each model of the values of the Root Mean Square Error of the Cross Validation (RMSECV), the Standard Error of Performance (SECV) and the Ratio of Prediction to Deviation (RPD).

Alberto Villar; Santiago Fernández; Eneko Gorritxategi; José I. Ciria; Luis A. Fernández

2014-01-01T23:59:59.000Z

147

Effects of alternate fuels report No. 8: analysis of degradiation of magnesia-based refractory bricks from a residual oil-fired rotary cement kiln  

SciTech Connect (OSTI)

Residual oil was used as an alternate fuel to natural gas to supply heat in a rotary cement kiln. Principal impurities in the residual oil were Ca, Fe, Mg, Na, Ni, P.S. and V. the kiln operators were concerned about the effects of these oil impurities on observed degradation of the magnesia-based bricks used as a liner in the burning zone of the kiln. Two degraded bricks, which had been in service for six to nine months, were analyzed to determine the role of fuel impurities on the observed degradation. The maximum hot-face temperature of the refractory during service was about 1500/sup 0/C. One brick had decreased in thickness about 45%, the about 15%. Various analytical measurements on these samples failed to reveal the presence of fuel impurities at or near the hot face of the bricks, and therefore it is concluded that the relatively short service life of these refractories was not due to use of residual oil as the fuel in the kiln. The observed degradation, therefore, was attributed to other reactions and to thermal mechanical conditions in the kiln, which inevitably resulted in extensive erosion of the bricks.

Federer, J.I.; Tennery, V.J.

1980-05-01T23:59:59.000Z

148

Combining Vis–NIR hyperspectral imagery and legacy measured soil profiles to map subsurface soil properties in a Mediterranean area (Cap-Bon, Tunisia)  

Science Journals Connector (OSTI)

Abstract Previous studies have demonstrated that Visible Near InfraRed (Vis–NIR) hyperspectral imagery is a cost-efficient way to map soil properties at fine resolutions (~ 5 m) over large areas. However, such mapping is only feasible for the soil surface because the effective penetration depths of optical sensors do not exceed several millimeters. This study aims to determine how Vis–NIR hyperspectral imagery can serve to map the subsurface properties at four depth intervals (15–30 cm, 30–60 cm, 60–100 cm and 30–100 cm) when used with legacy soil profiles and images of parameters derived from digital elevation model (DEM). Two types of surface–subsurface functions, namely linear models and random forests, that estimate subsurface property values from surface values and landscape covariates were first calibrated over the set of legacy measured profiles. These functions were then applied to map the soil properties using the hyperspectral-derived digital surface soil property maps and the images of landscape covariates as input. Error propagation was addressed using a Monte Carlo approach to estimate the mapping uncertainties. The study was conducted in a pedologically contrasted 300 km2-cultivated area located in the Cap Bon region (Northern Tunisia) and tested on three soil surface properties (clay and sand contents and cation exchange capacity). The main results were as follows: i) fairly satisfactory (cross-validation R2 between 0.55 and 0.81) surface–subsurface functions were obtained for predicting the soil properties at 15–30 cm and 30–60 cm, whereas predictions at 60–100 cm were less accurate (R2 between 0.38 and 0.43); ii) linear models outperformed random-forest models in developing surface–subsurface functions; iii) due to the error propagations, the final predicted maps of the subsurface soil properties captured from 1/3 to 2/3 of the total variance with a significantly decreasing performance with depth; and iv) these maps brought significant improvements over the existing soil maps of the region and showed soil patterns that largely agreed with the local pedological knowledge. This paper demonstrates the added value of combining modern remote sensing techniques with old legacy soil databases.

Philippe Lagacherie; Anne-Ruth Sneep; Cécile Gomez; Sinan Bacha; Guillaume Coulouma; Mohamed Hédi Hamrouni; Insaf Mekki

2013-01-01T23:59:59.000Z

149

UV-vis spectroscopy of iodine adsorbed on alkali-metal-modified zeolite catalysts for addition of carbon dioxide to ethylene oxide  

SciTech Connect (OSTI)

The basicity of alkali-metal-exchange (Na, K, Cs) zeolites X and Y was probed by UV-vis diffuse reflectance spectroscopy of adsorbed iodine. The observed blue shift in the visible absorption spectrum of adsorbed iodine, compared to gaseous iodine, correlated well with the negative charge on the framework oxygen atoms calculated from the Sanderson electronegativity equalization principle. The blue shifts associated with iodine adsorbed on classical catalytic supports like silica, alumina, and magnesia suggest that the iodine adsorption technique for probing basicity is applicable to a wide variety of solids. Iodine was also adsorbed on X and Y zeolites containing occluded cesium oxide formed by decomposition of impregnated cesium acetate. However, the iodine appeared to irreversibly react on these strongly basic samples, possibly forming an adsorbed triiodide ions. As a complement to the adsorption studies, the activity of alkali-metal-containing zeolites for the base-catalyzed formation of ethylene carbonate from ethylene oxide and carbon dioxide was investigated. Among the ion-exchanged zeolites, the cesium form of zeolite X exhibited the highest activity for ethylene carbonate formation. The catalytic activity of a zeolite containing occluded cesium was even higher than that of a cesium-exchanged zeolite. The presence of water adsorbed in zeolite pores promoted the rate of ethylene carbonate formation for both cesium-exchanged and cesium-impregnated zeolite X.

Doskocil, E.J.; Bordawekar, S.V.; Kaye, B.G.; Davis, R.J. [Univ. of Virginia, Charlottesville, VA (United States). Dept. of Chemical Engineering] [Univ. of Virginia, Charlottesville, VA (United States). Dept. of Chemical Engineering

1999-07-29T23:59:59.000Z

150

TiO2 Nanotubes/MWCNTs Nanocomposite Photocatalysts: Synthesis, Characterization and Photocatalytic Hydrogen Evolution Under UV-Vis Light Illumination  

SciTech Connect (OSTI)

Nanocomposite of TiO2 nanotubes (TiO2NTs) and multiwalled carbon nanotubes (MWCNTs) has been synthesized by a hydrothermal method and firstly used in photocatalytic hydrogen production. The obtained TiO2 NTs/MWCNTs composites were characterized by X-ray diffraction, transmission electron microscopy, Raman spectrum and ultraviolet-visible diffuse reflectance spectroscopy. The experimental results revealed that the MWCNTs were decorated with well dispersed anatase TiO2 nanotubes with a diameter of 8-15 nm. A slight blue shift and weak symmetry was observed for the strongest Raman peak which resulted from strain gradients originating from interface integration between TiO2 nanotubes and MWCNTs. The photocatalytic activity of the as-prepared samples was evaluated by hydrogen evolution from water splitting using Na2S and Na2SO3 as sacrificial reagents under UV-vis light irradiation. Enhanced photocatalytic activity compared with P25 has been observed for the resulted samples. The nanocomposite with optimized MWCNTs content of 1% displayed a hydrogen production rate of 161 u mol/h/g. Good photocatalytic stability of the as-synthesized samples was observed as well.

Li, Hao-Peng; Zhang, Xiao-Yan; Cui, Xiao-Li; Lin, Yuehe

2012-03-01T23:59:59.000Z

151

VisGreenWorkshop Findings  

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

etc., it would be quite helpful if an additional source of funds were available to us for upgrading our desktop visualization workstations. Besides our desktop systems, it would be...

152

Reduction of iron-oxide-carbon composites: part II. Rates of reduction of composite pellets in a rotary hearth furnace simulator  

SciTech Connect (OSTI)

A new ironmaking concept is being proposed that involves the combination of a rotary hearth furnace (RHF) with an iron-bath smelter. The RHF makes use of iron-oxide-carbon composite pellets as the charge material and the final product is direct-reduced iron (DRI) in the solid or molten state. This part of the research includes the development of a reactor that simulated the heat transfer in an RHF. The external heat-transport and high heating rates were simulated by means of infrared (IR) emitting lamps. The reaction rates were measured by analyzing the off-gas and computing both the amount of CO and CO{sub 2} generated and the degree of reduction. The reduction times were found to be comparable to the residence times observed in industrial RHFs. Both artificial ferric oxide (PAH) and naturally occurring hematite and taconite ores were used as the sources of iron oxide. Coal char and devolatilized wood charcoal were the reductants. Wood charcoal appeared to be a faster reductant than coal char. However, in the PAH-containing pellets, the reverse was found to be true because of heat-transfer limitations. For the same type of reductant, hematite-containing pellets were observed to reduce faster than taconite-containing pellets because of the development of internal porosity due to cracking and fissure formation during the Fe2O{sub 3}-to-Fe3O{sub 4} transition. This is, however, absent during the reduction of taconite, which is primarily Fe3O{sub 4}. The PAH-wood-charcoal pellets were found to undergo a significant amount of swelling at low-temperature conditions, which impeded the external heat transport to the lower layers. If the average degree of reduction targeted in an RHF is reduced from 95 to approximately 70 pct by coupling the RHF with a bath smelter, the productivity of the RHF can be enhanced 1.5 to 2 times. The use of a two- or three-layer bed was found to be superior to that of a single layer, for higher productivities.

Halder, S.; Fruehan, R.J. [Praxair Inc., Tonawanda, NY (United States). Praxair Technological Center

2008-12-15T23:59:59.000Z

153

Fundamental Aeronautics Subsonic Rotary Wing  

E-Print Network [OSTI]

services to society, including emergency medical and rescue services, security patrols, off-shore oil

154

Computational Reality XV Rotary viscometer  

E-Print Network [OSTI]

by applied forces on the surface and any volumetric forces, like gravitation or electromagnetic field proposed an apparent viscosity depending on the aforementioned component, d12, given by a power law: 12 = µ

Berlin,Technische Universität

155

Conveyor with rotary airlock apparatus  

DOE Patents [OSTI]

This invention is comprised of an apparatus for transferring objects from a first region to a second region, the first and second regions having differing atmospheric environments. The apparatus includes a shell having an entrance and an exit, a conveyer belt running through the shell from the entrance to the exit, and a horizontally mounted `revolving door` with at least four vanes revolving about its axis. The inner surface of the shell and the top surface of the conveyer belt act as opposing walls of the `revolving door`. The conveyer belt dips as it passes under but against the revolving vanes so as not to interfere with them but to engage at least two of the vanes and define thereby a moving chamber. Preferably, the conveyer belt has ridges or grooves on its surface that engage the edges of the vanes and act to rotate the vane assembly. Conduits are provided that communicate with the interior of the shell and allow the adjustment of the atmosphere of the moving chamber or recovery of constituents of the atmosphere of the first region from the moving chamber before they escape to the second region.

Kronbert, J.W.

1993-01-01T23:59:59.000Z

156

Rotary powder feed through apparatus  

DOE Patents [OSTI]

A device for increasing the uniformity of solids within a solids fabrication system, such as a direct light fabrication (DLF) system in which gas entrained powders are passed through the focal point of a moving high-power light which fuses the particles in the powder to a surface being built up in layers. The invention provides a feed through interface wherein gas entrained powders input from stationary input lines are coupled to a rotating head of the fabrication system. The invention eliminates the need to provide additional slack in the feed lines to accommodate head rotation, and therefore reduces feed line bending movements which induce non-uniform feeding of gas entrained powder to a rotating head.

Lewis, Gary K. (Los Alamos, NM); Less, Richard M. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

157

Synthetic, Cyclic Voltammetric, Structural, EPR, and UV?Vis Spectroscopic Studies of Thienyl-Containing meso-A2B-cor(CrV?O) Systems: Consideration of Three Interrelated Molecular Detection Modalities  

Science Journals Connector (OSTI)

Synthetic, Cyclic Voltammetric, Structural, EPR, and UV?Vis Spectroscopic Studies of Thienyl-Containing meso-A2B-cor(CrV?O) Systems: Consideration of Three Interrelated Molecular Detection Modalities ... In the case of metal complexes, there are two one-electron reversible redox processes: a ligand-based oxidation corresponding to the corrole/corrole ?-radical cation (ligand/ligand•+) couple and a metal-based reduction corresponding to the metaln/metaln?1 couple. ... The material properties are, in the case of corrole, confined to the single mol., while in the case of sapphyrin, a build-up process seems to take place, so that many monolayers are necessary to establish the bulk material properties. ...

Olga A. Egorova; Olga G. Tsay; Snehadrinarayan Khatua; Bhupal Meka; Nilkamal Maiti; Min-Kyu Kim; Seong Jung Kwon; Jung Oh Huh; Daniela Bucella; Sa-Ouk Kang; Juhyoun Kwak; David G. Churchill

2009-12-17T23:59:59.000Z

158

Theories of rotary motors Richard M. Berry  

E-Print Network [OSTI]

and the `proton turbine' model of La« uger or Berry. Models such as these are typically represented by a small connected to an extracellular helical propeller. The motor is powered by the £ow of ions down to the helical propeller, or `¢lament'. The stator is a ring of particles in the cytoplasmic membrane, containing

Berry, Richard

159

Simulation of a continuous rotary dissolver  

SciTech Connect (OSTI)

This paper describes the simulation of a rotating, multistage chemical reactor that dissolves spent nuclear fuel for reprocessing in a breeder cycle. The continuous, time-dependent process model of a dissolver was developed using the Advanced Continuous Simulation Language (ACSL) to calculate various temperatures and the masses of the chemical constituents of the solution in each stage. The Gear integration algorithm (Gear 1971) was used to accommodate the stiff dynamics. An arrangement of interacting discrete sections was employed to cause fresh fuel to be added and dissolver rotations to occur at appropriate times. By changing various constants, the model can simulate the effect of different fuel compositions and operational scenarios. The model code is a valuable tool for analysis of the performance of the dissolution system and has been instrumental in its design. 5 refs., 7 figs.

Carnal, C.L.; Hardy, J.E.; Lewis, B.E.

1989-01-01T23:59:59.000Z

160

34th annual reed rotary rig census  

SciTech Connect (OSTI)

This article reports that the number of rigs active according to the 1986 census is 1052, which represents a decline of 1573 rigs from 1985 figures. This 60 percent decrease is the largest decline of active rigs in the 34-year history of the census. The 1986 census takers found 3993 rigs are available with the capacity to drill deeper than 3000 ft. The count has thus declined by 416 rigs (9 percent) from the 1985 total of 4409. Rig availability declined for the fourth consecutive year following nine straight years of fleet expansion (1974-1982). During the past four years, 1651 rigs have been removed from the drilling fleet representing a 29 percent decline from the record high number of rigs available in 1982. The 1986 decline in the available U.S. fleet is considerably less than what many industry observers had been anticipating. A larger decrease in the rig fleet has not been realized for a number of reasons.

Hutchinson, D.L.; Pastusek, P.E.

1986-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Generalizing thawing dark energy models: the standard vis-à-vis model independent diagnostics  

Science Journals Connector (OSTI)

......w X for thawing dark energy models which include...Oscillation Spectroscopic Survey data. Our analysis...type of thawing dark energy is favoured up...Oscillation Spectroscopic Survey (BOSS) data...fluid, namely dark energy, in huge abundances......

Debabrata Adak; Debasish Majumdar; Supratik Pal

2014-01-01T23:59:59.000Z

162

Low stress creep behavior of Zircaloy-2 vis-a-vis zirconium  

SciTech Connect (OSTI)

Zircaloy-2 is a popular zirconium base nuclear fuel cladding material having tin as a major alloying additions along with Fe, Ni and Cr, each around 0.1 wt %. Low stress creep behavior of a-zirconium and zircaloy-2 has been studied employing helical spring specimens. Detailed experimental results are reported and analyzed elsewhere. Here we present data on a-Zr and zircaloy-2 obtained under identical test conditions of grain size and test temperature with the aim of bringing out the effect of alloying additions to zirconium through the results obtained on the low stress creep behavior of zircaloy-2. The high purity zirconium contained, by ppm, 110 Sn, 350 Fe, 37 Ni, 150 Cr and 880 O while zircaloy-2 contained, by wt %, 1.3 Sn, 0.16 Fe, 0.06 Cr, 0.04 Ni and 0.11 O. Helical spring specimens of wire radius 500{mu}m and spring radius 0.012m were employed in both the cases. Spring specimens were annealed under vacuum (Zr at 923K/1.8ks and zircaloy-2 at 1113K/2.7ks) while on mandrel to develop a matching grain size in both the materials. The mean linear intercept grain size was found to be 16.8{mu}m in alpha zirconium and 16.6{mu}m in zircaloy-2. Close coiled helices were creep tested at 873K using the set-up and procedure described elsewhere. The maximum applied stress was 5.3MN/m{sup 2} in the case of zirconium while the same in the case of zircaloy-2 was 3.9MN/m{sup 2}. Deflection versus time curves for tests conducted at 873K for both the materials are shown in this paper.

Prasad, N. (Dept. of Metallurgical Engineering, Banaras Hindu Univ., Varanasi-221005 (IN)); Malakondaiah, G. (Defense Metallurgical Research Lab., Hyderabad-500258 (IN)); Rao, P.R. (Dept. of Science and Technology, Government of India, New Delhi-110016 (IN))

1992-02-15T23:59:59.000Z

163

E-waste vis-à-vis human health and environment  

Science Journals Connector (OSTI)

The social, economic and technological growth of a developing society has resulted in rapid product obsolescence which in turn has become a new environmental challenge - i.e., 'electronics waste' (e-waste). Electronic waste has not been a problem as long as there were a few computers or other electronic devices on earth. With the increasing use of computers/electronic devices, our planet has become a dump house for electronic wastes. Electronic products often contain hazardous materials that lead to environmental degradation when they are destroyed. It is an emerging problem given the volumes of e-waste being generated. E-waste, particularly, computer waste has complicated the immense task of solid waste management, with the developed countries dumping their outdated electronic products in developing countries as one of their e-waste management techniques. This paper highlights the damaging impact of e-waste on environment and human health as well as various approaches to deal with it, in the light of initiatives in developing countries. It broadly discusses the composition, criticality and control of e-waste in developing countries, particularly in India.

Adarsh Garg; Neena Singla

2013-01-01T23:59:59.000Z

164

MATH 141 (Calculus I), Sections 007008, Spring 2013 Instructor: Laszlo A. Szekely  

E-Print Network [OSTI]

Assistant: Blake Farman Office: LC 107A Office hours: TBA and by appointment Phone: TBA (see couse webpage

Székely, László

165

VisGenome and Ensembl: Usability of Integrated Genome Maps  

E-Print Network [OSTI]

Jakubowska,J. Hunt,E. McClure,J. Chalmers,M. McBride,M. Dominiczak,A.F. DILS proceedings pp 77-91 LNCS, Springer

Jakubowska, J.; Hunt, E.

166

Info Vis Comp5048 lecture August 13 Tutorial: when?  

E-Print Network [OSTI]

in upper case are fixed and spaced regularly around a circle), and b. the Hooke's law spring method. A B,C,d,B,c f C,d,e,g g d,e,f 2. Find some code that computes force-directed layout. Test in on graphs with 10

Hong,Seokhee

167

Investigation of Noise Level and Penetration Rate of Pneumatic Drill vis-à-vis Rock Compressive Strength and Abrasivity  

Science Journals Connector (OSTI)

In this paper, detailed studies were carried out to determine the influence of rock properties on the sound level produced during pneumatic drilling. Further, investigation was also carried out on the effect of t...

S. B. Kivade; Ch. S. N. Murthy; H. Vardhan

2014-10-01T23:59:59.000Z

168

Integrated chain analysis of recycled vis-a-vis wood pulp paper industry: an Indian manufacturer viewpoint  

Science Journals Connector (OSTI)

Strict environmental regulations and the ever-increasing shortages in the availability of natural resources are making reverse logistics an area of growing importance. From the manufacturer's point of view, this paper proposes a linear programming optimisation model for the Indian paper industry with two different sources of raw materials (i.e., wood and wastepaper). The objective of the model is to minimise the paper supply chain cost, which includes costs of collection, transportation, segregation and disposal (for recycled paper), inventory, and manufacturing. The inclusions of environmental cost and cost of quality added a new dimension to the said model, which was not explored earlier in the supply chain context. To know the behaviour of the system under different scenarios, sensitivity analysis, shortage analysis and finally, indifference curve analysis have been performed on the model. The model will help the manufacturer make strategic decision under different shortage scenarios of the paper supply chain.

Rupesh Kumar Pati; Prem Vrat; Pradeep Kumar

2006-01-01T23:59:59.000Z

169

A Rotary Molecular Motor Gated by Electrical Energy  

Science Journals Connector (OSTI)

DFT calculations predict that the chiral pentiptycene derivative E-1 possesses distinct rotational potential energy surfaces in the neutral vs the radical anionic (E-1•–) form such that continued electrochemical switching between E-1 and E-1•– could lead ...

Chen-Yi Kao; Hsiu-Feng Lu; Ito Chao; Jye-Shane Yang

2014-11-13T23:59:59.000Z

170

Evaluation of high rotary speed drill bit performance  

E-Print Network [OSTI]

of this research was to develop a drilling model which would more accurately predict penetration rates with standard drilling parameters. An accurate model was developed using laboratory drilling performance. A secondary result of this research was a qualitative... analysis showed that the model may be used to qualita- tivelyy match drilled formations to offset well logs. The ratio of actual to predicted penetration rate was used in conjunction with the gamma ray log to correlate the location of formations. iv...

Ray, Randy Wayne

2012-06-07T23:59:59.000Z

171

Constraints on models for the flagellar rotary motor  

Science Journals Connector (OSTI)

...this way always operates in the upper right-hand quadrant of gure 2. It cannot drive itself backwards, although, it can rede ne what is meant by forwards by switching from counterclockwise (CCW) to clockwise (CW) or back again. Nor can it spin faster...

2000-01-01T23:59:59.000Z

172

Method for firing a rotary kiln with pulverized solid fuel  

SciTech Connect (OSTI)

Disclosed is a method for firing a kiln as well as a method for producing cement clinker in which pulverized coal is initially entrained in an airflow of about 2% of the theoretical amount of air needed to combust the coal and transport it to a burner. Supplemental primary air heated sufficiently to vaporize volatiles in the coal is mixed with the coal flow in a burner, discharged into the kiln and hence ignited. Secondary combustion air heated to between 800 F to 1650 F and more is added in the kiln to effect the substantially complete combustion of the pulverized coal in the kiln.

Binasik, C.S.; Siegert, L.D.

1982-01-12T23:59:59.000Z

173

Rotary Firing in Ring-Shaped Protein Explains Unidirectionality  

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

backbone. The sixth subunit does not significantly contact the RNA and lies midway between the top and bottom steps of the staircase. The positional relationships...

174

Maintenance cost studies of rotary wing commercial transport aircraft  

E-Print Network [OSTI]

Introduction: The vertical take-off and landing (VTOL) aircraft market has had substantial growth in the period of the last ten years when one considers the overall number of aircraft in use. The military fleet has continued ...

Ausrotas, Raymond A.

1974-01-01T23:59:59.000Z

175

Rotary Table Model: Oilwell A-49 1/2  

E-Print Network [OSTI]

, 133/8, 11¾, 10¾ in.) Power Engines/Generators: 7 EMD 16 cylinder diesel 5 @ 2,100 kW (3,000 hp) 2 @ 1,000 shp Liquid Capacities Diesel fuel (MGO): 997,152 gal (3,217 mt) Drill water: 343,959 gal Ballast: 182

176

Rob Greenwood, Ph.D. Presentation to Rotary  

E-Print Network [OSTI]

;Social dynamics of economic performance, innovation & creativity · $ 2.5 M National Project led by Dr) · Social Dynamics of Economic Performance: Innovation and Creativity in City Regions · Success in new, public, NGO, education & training, key to success #12;Social dynamics of economic performance, innovation

deYoung, Brad

177

Analysis of Energy Savings by Painting a Rotary Kiln Surface  

E-Print Network [OSTI]

is 9 feet as shown in Fig. 3. Except the section with lifters (for enhancing petcoke mixing), the wall consists of a 7/8-inch metal shell and a 9- inch layer of refractory brick as the insulation liner. There are 8 lifters cast in place... is 9 feet as shown in Fig. 3. Except the section with lifters (for enhancing petcoke mixing), the wall consists of a 7/8-inch metal shell and a 9- inch layer of refractory brick as the insulation liner. There are 8 lifters cast in place...

Li, X.; Wang, T.; Tonti, R. T.; Edwards, L.

2007-01-01T23:59:59.000Z

178

Bailer for top head drive rotary well drills  

SciTech Connect (OSTI)

A bailer mounted to the derrick of a top head drive well drilling rig is described. The bailer includes a winch line drum mounted by a bracket to the derrick. A positive displacement hydraulic motor mounts one end of the drum and receives fluid under pressure from the existing hydraulic pressure supply. Valving is provided to allow reverse operation of the motor so equipment can either be raised or lowered relative to the derrick. The hydraulic delivery line to the motor includes a one way restrictor that will allow relatively free passage of fluid to the motor in a driving or lifting mode but will reverse flow of fluid from the motor, thereby affording a braking effect for lowering a load at a selected rate.

Bartholomew, L.

1980-09-23T23:59:59.000Z

179

Development of the High Efficiency X1 Rotary Diesel Engine  

Broader source: Energy.gov [DOE]

This poster describes the design, modeling, and build of a 70-hp prototype of a high efficiency hybrid cycle engine that is expected to attain 57 percent efficiency across a range of loads.

180

New Rotary Engine Designs by Deviation Function Method  

E-Print Network [OSTI]

spring underneath, F S , necessary for starting the engine,the engine, the rotor apexes are replaced by spring-loadedengine designs require minimization of the size and weight of the apex seals in order to minimize the spring

Warren, Sarah

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Rotary bed reactor for chemical-looping combustion with carbon capture ; Rotary bed reactor for CLC with carbon capture .  

E-Print Network [OSTI]

??Chemical-looping combustion (CLC) is a novel and promising technology for power generation with inherent CO2 capture. Currently almost all the research has been focused on… (more)

Zhao, Zhenlong

2012-01-01T23:59:59.000Z

182

B.S. in Biomedical Engineering Sample Curriculum*1 Fall Semester Spring Semester  

E-Print Network [OSTI]

B.S. in Biomedical Engineering ­ Sample Curriculum*1 2014-15 First Year Fall Semester Spring Semester Couse Title Number Units Course Title Number Units Biomedical Engineering Design E62-BME 401 3 Semester Couse Title Number Units Course Title Number Units Introduction to Biomedical Engr E62-BME 140 3

Subramanian, Venkat

183

A self-interaction-free local hybrid functional: Accurate binding energies vis-à-vis accurate ionization potentials from Kohn-Sham eigenvalues  

SciTech Connect (OSTI)

We present and test a new approximation for the exchange-correlation (xc) energy of Kohn-Sham density functional theory. It combines exact exchange with a compatible non-local correlation functional. The functional is by construction free of one-electron self-interaction, respects constraints derived from uniform coordinate scaling, and has the correct asymptotic behavior of the xc energy density. It contains one parameter that is not determined ab initio. We investigate whether it is possible to construct a functional that yields accurate binding energies and affords other advantages, specifically Kohn-Sham eigenvalues that reliably reflect ionization potentials. Tests for a set of atoms and small molecules show that within our local-hybrid form accurate binding energies can be achieved by proper optimization of the free parameter in our functional, along with an improvement in dissociation energy curves and in Kohn-Sham eigenvalues. However, the correspondence of the latter to experimental ionization potentials is not yet satisfactory, and if we choose to optimize their prediction, a rather different value of the functional's parameter is obtained. We put this finding in a larger context by discussing similar observations for other functionals and possible directions for further functional development that our findings suggest.

Schmidt, Tobias; Kümmel, Stephan [Theoretical Physics IV, University of Bayreuth, 95440 Bayreuth (Germany)] [Theoretical Physics IV, University of Bayreuth, 95440 Bayreuth (Germany); Kraisler, Eli; Makmal, Adi; Kronik, Leeor [Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100 (Israel)] [Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100 (Israel)

2014-05-14T23:59:59.000Z

184

Apport des aluminates de calcium vis-à-vis de la résistance à l'eau des sulfates de calcium hydratés.  

E-Print Network [OSTI]

??Les sulfates de calcium sont des matériaux économiques et écologiques. Pourtant leur utilisation dans le domaine de la construction est assez limitée du fait de… (more)

Nguyen, Tien Dung

185

VisIt: An End-User Tool for Visualizing and Analyzing Very Large Data  

E-Print Network [OSTI]

CA, USA, 94551. Jeremy Meredith Oak Ridge NationalLaboratory, Oak Ridge, TN, USA, 37831.Sean Ahern Oak Ridge National Laboratory, Oak Ridge, TN,

Childs, Hank

2013-01-01T23:59:59.000Z

186

VisPortal: Increasing Scientific Productivity by Simplifying Access to and Use of Remote Computational Resources  

E-Print Network [OSTI]

Computational Resources Problem Statement Computational science is the process of modeling and simulating and simulations increase in capability, the data produced by computational science research projects grows ever and complexity of simulations, computing resources and analysis tools comes the need for researchers to master

187

Basic UV-Vis Theory, Concepts and Applications Page 1 of 28  

E-Print Network [OSTI]

Radiation Sources Besides the sun, the most conveniently available source of visible radiation with which we of many wavelengths and the energy emitted at any particular wavelength depends largely on the temperature of the solid and is predictable from probability theory. The curves in Figure 3 show the energy distribution

Raizada, Manish N.

188

Eurographics Conference on Visualization (EuroVis) 2014 H. Carr, P. Rheingans, and H. Schumann  

E-Print Network [OSTI]

that are automatically com- puted to optimize the global quality measures [MSRT13] in their restricted search spaces Study We perform a user study to assess the visualization quality of our automatically computed by the user. Effectiveness is measured both in terms of required interaction time and the satisfaction

189

Characterization of A Novel Avalanche Photodiode for Single Photon Detection in VIS-NIR Range  

E-Print Network [OSTI]

In this work we investigate operation in the Geiger mode of the new single photon avalanche photo diode (SPAD) SAP500 manufactured by Laser Components. This SPAD is sensitive in the range 400-1000nm and has a conventional reach-through structure which ensures good quantum efficiency at the long end of the spectrum. By use of passive and active quenching schemes we investigate detection efficiency, timing jitter, dark counts, afterpulsing, gain and other important parameters and compare them to the "standard" low noise SPAD C30902SH from Perkin Elmer. We conclude that SAP500 offers better combination of detection efficiency, low noise and timing precision.

M. Stipcevic; H. Skenderovic; D. Gracin

2010-04-03T23:59:59.000Z

190

The Use of UV–Vis Absorption Spectroscopy for Studies of Natively Disordered Proteins  

Science Journals Connector (OSTI)

Absorption spectroscopy can be used to monitor structural changes upon transitions from ordered to disordered state in proteins. Changes in environment of tryptophan, tyrosine,...

Eugene A. Permyakov

2012-01-01T23:59:59.000Z

191

Excess ioniza,on in mesosphere caused by rela,vis,c electron precipita,on  

E-Print Network [OSTI]

and in preparaEon. In 2013 Dartmouth College with collaborators launched 20 stratospheric balloons to circumpolar flights in AntarcEc for detecEon of relaEvisEc electron

Ulich, Thomas

192

Mixed Al/Ce oxide pillaring of montmorillonite: XRD and UV-VIS diffuse reflectance study  

Science Journals Connector (OSTI)

Ce and Al pillared clays were prepared by (i) pillaring Ce3+-exchanged montmorillonite with Al13 polycation (Ce-Al-PILC) and (ii) by pillaring Na-montmorillonite...3+ and Al3+ salts (Al-Ce-PILC). Cohydrolyzed oli...

G. Ranga Rao; Braja Gopal Mishra

2002-03-01T23:59:59.000Z

193

AkuVis: Interactive Visualization of Acoustic Data Rainer Fehr1  

E-Print Network [OSTI]

Environmental noise or "community noise", i.e. all noise exposure outside the industrial work place, is a well researchers from the Institute of Public Health NRW and the Local Environmental Agency Bielefeld as well decisions about noise protection regulations for new streets, industrial areas etc. 1. Motivation

Börner, Katy

194

SEC data for polymer 1-6: UV-vis spectra for polymer 1-6  

E-Print Network [OSTI]

for organic solar cells Eva Bundgaard a,b and Frederik C. Krebs a a Polymer Solar Cell Initiative, The Danish for these devices is summarized in the table below. IV-curve for the polymer 5 and PCBM: The photovoltaic studies of the device by a better overlap with the solar spectrum. The synthesis of low band gap polymers are however

195

InfVis ? Platform-Independent Visual Data Mining of Multidimensional Chemical Data Sets  

Science Journals Connector (OSTI)

Because of the high- dimensional character, chemical data sets above all require specific multidimensional analysis methods. ... Pharmaceutical companies have started to use this technology to establish Intranet solutions such as data warehouses, chemical portals, or other client-server architectures. ... We firmly believe that this visualization technique has the best characteristics for application by users with little or no experience with data mining tools and visualization applications. ...

Frank Oellien; Wolf-Dietrich Ihlenfeldt; Johann Gasteiger

2005-08-12T23:59:59.000Z

196

Eurographics Conference on Visualization (EuroVis) 2013 B. Preim, P. Rheingans, and H. Theisel  

E-Print Network [OSTI]

, scientists can simulate the highest-resolution climate/Earth system models, leading to more reliable

Tierny, Julien

197

GOES10 vis 15abr08 1139 GMT www.cptec.inpe.br  

E-Print Network [OSTI]

on IPCC review. Valverde & Marengo (2007) Most extreme Hadley-cm3 Most extreme Hadley-cm3 #12;Dr. Pedro events in coming years. (Cox 2007, Hadley Center) #12;Source of further information LBA ­ Largescale

Slatton, Clint

198

VisPortal: Deploying grid-enabled visualization tools through a web-portal interface  

SciTech Connect (OSTI)

The LBNL/NERSC Visportal effort explores ways to deliver advanced Remote/Distributed Visualization (RDV) capabilities through a Grid-enabled web-portal interface. The effort focuses on latency tolerant distributed visualization algorithms, GUI designs that are more appropriate for the capabilities of web interfaces, and refactoring parallel-distributed applications to work in a N-tiered component deployment strategy. Most importantly, our aim is to leverage commercially-supported technology as much as possible in order to create a deployable, supportable, and hence viable platform for delivering grid-based visualization services to collaboratory users.

Bethel, Wes; Siegerist, Cristina; Shalf, John; Shetty, Praveenkumar; Jankun-Kelly, T.J.; Kreylos, Oliver; Ma, Kwan-Liu

2003-06-09T23:59:59.000Z

199

Ion mobilitymass spectrometry of a rotary ATPase reveals ATP-induced reduction in  

E-Print Network [OSTI]

detail that underlies operation and regulation in the context of the holoenzyme. R otary ATPases cooperation of components from both soluble and membrane domains, which results in heterogeneity under the influence of an electric field12 . Ions of different size and shape experience different

Cai, Long

200

Thresholds for Dynamic Changes in a Rotary Switch Shuo Yang1, Hong Z. Tan1  

E-Print Network [OSTI]

include the iDrive system co- developed by Immersion Corporation and BMW, and the Haptic Scroll Wheel-9, 2003. #12;344 tivity was conducted by Woodruff and Helson [1]. Using a steel rod mounted on two ball a haptic knob in a simple pinch grasp with a second-order system [6]. Such a model can lead to better

Tan, Hong Z.

Note: This page contains sample records for the topic "vis cous rotary" 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

A rotary molecular motor that can work at near 100% efficiency  

Science Journals Connector (OSTI)

...that the F1 motor can work at near 100% efficiency. We confirmed in vitro that F1 indeed...energy per ATP is 90 pN nm. The high efficiency may be related to the fully reversible...Kohlbrenner 1981): Fo is a motor, or turbine, driven by the proton ow, and F1 is...

2000-01-01T23:59:59.000Z

202

Characterisation of rotary kiln residues from the pyrolysis of shredder residues: Issues with lead  

Science Journals Connector (OSTI)

Stringent legislation is being to be implemented across Europe relating to heavy metal contamination into the environment. This study thus focuses on developing a method for reliably determining the lead content of automotive shredder residue (ASR). The material is first pyrolysed to remove organic fractions. Different analytical methods were then used to investigate the concentrations of heavy metals in the burned char, which varies from chunks of metals in larger sized fractions to fine powders of mostly non-metals. By considering results from ICP-MS, EDXRF, WDXRF and a portable EDXRF, it was found that varying values were obtained but that consistent ‘consensus values’ could be determined. Such ‘consensus’ values of lead, copper, iron and zinc are thus reported, and show that properly depolluted \\{ELVs\\} have significantly lower lead levels than normal shredder residue (SR) feed ?8000 ppm versus 16,000 ppm. The finest fraction, <850 ?m, makes up around half of the mass of the SR and has only 2700 ppm and 5400 ppm lead concentration values for depolluted \\{ELVs\\} and normal SR, respectively, making it of interest for further work to develop uses as a feed in other industries.

Osric T. Forton; Lucas McGrady; M.M. Singh; E.R.M. Taylor; Norman R. Moles; Marie K. Harder

2007-01-01T23:59:59.000Z

203

ExperimentalandNumericalInvestigationsontheFlowCharacteristicsofRotaryMachineries AerospaceEngineeringGraduatePreliminaryOralExam  

E-Print Network [OSTI]

performances and wake characteristics of innovative dual-rotor wind turbines (DRWTs) and conventional single (PIV) systems were used for detailed wake flow field measurements to quantify the flow characteristics-rotor wind turbine (SRWT). For the first topic, by using a commercially-available cooling fan as the baseline

Hu, Hui

204

Progress in an oxygen-carrier reaction kinetics experiment for rotary-bed chemical looping combustion .  

E-Print Network [OSTI]

??The design process for an experimental platform measuring reaction kinetics in a chemical looping combustion (CLC) process is documented and justified. To enable an experiment… (more)

Jester-Weinstein, Jack (Jack L.)

2013-01-01T23:59:59.000Z

205

Characterization of macro-length conducting polymers and the development of a conducting polymer rotary motor  

E-Print Network [OSTI]

Conducting polymers are a subset of materials within the electroactive polymer class that exhibit active mechanical deformations. These deformations induce stresses and strains that allow for conducting polymers to be used ...

Schmid, Bryan D. (Bryan David), 1981-

2005-01-01T23:59:59.000Z

206

Rotary bed reactor for chemical-looping combustion with carbon capture  

E-Print Network [OSTI]

Chemical-looping combustion (CLC) is a novel and promising technology for power generation with inherent CO2 capture. Currently almost all the research has been focused on developing CLC based inter-connected fluidized bed ...

Zhao, Zhenlong

2012-01-01T23:59:59.000Z

207

An Advanced Solar-Powered Rotary Solid Adsorption Refrigerator with High Performance  

E-Print Network [OSTI]

reported before. Through improving the refrigerant performance of heat and mass transfer in the adsorbent bed, the refrigeration cycle has been advanced from the aspect of utilization of the thermal energy from low-temperature level resources. In addition...

Zheng, A.; Gu, J.

2006-01-01T23:59:59.000Z

208

Targeted Autonomous Indoor Flight of a Rotary-Wing MAV Svetlana Potyagaylo  

E-Print Network [OSTI]

of Aerospace Engineering svetap@tx.technion.ac.il Omri Rand Professor Faculty of Aerospace Engineering omri@aerodyne.technion.ac.il Yaron Kanza Associated Professor Faculty of Computer Science kanza@cs.technion.ac.il Technion, Israel. INTRODUCTION In recent years, MAVs received a special attention because of their usefulness in various military

Kanza, Yaron

209

Rotary Electrodynamics of a DC Motor: Motor as Mechanical Capacitor Lab 2: Modeling and System Identification  

E-Print Network [OSTI]

). · im is the current through the motor. Because the motor is in series with all other electrical). Because power is conserved, m = Kmim (motor efficiency is actually closer to 69%). Here, Km 0.00767 VRotary Electrodynamics of a DC Motor: Motor as Mechanical Capacitor Lab 2: Modeling and System

210

Simulation of Combustion and Thermal-flow Inside a Petroleum Coke Rotary Calcining Kiln.  

E-Print Network [OSTI]

??Calcined coke is the best material for making carbon anodes for smelting of alumina to aluminum. Calcining is an energy intensive industry and a significant… (more)

Zhang, Zexuan

2007-01-01T23:59:59.000Z

211

Polycyclic Aromatic Hydrocarbons Formation in Sludge Incineration by Fluidised Bed and Rotary Kiln Furnace  

Science Journals Connector (OSTI)

Polycyclic Aromatic Hydrocarbons (PAHs) are typical pollutants arising from incineration. They are produced in any incomplete combustion principally due to inhomogeneities in a combustion chamber. The effects ...

Giuseppe Mininni; Andrea Sbrilli; Ettore Guerriero…

2004-05-01T23:59:59.000Z

212

A dolomite preheater-economizer for use of the exhaust gas heat of rotary kilns  

Science Journals Connector (OSTI)

In the Seversk Dolomite Combine a prototype of a preheater-economizer for utilization of the heat of the ... exhaust gases at the inlet to the preheater-economizer of 550–600°C and passage through...

G. S. Rasput'ko; V. V. Churilov; V. I. Rogovskii; Ya. N. Rudnitskii…

213

U.S. Crude Oil Rotary Rigs in Operation (Number of Elements)  

Gasoline and Diesel Fuel Update (EIA)

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 NA NA NA NA NA NA NA NA NA NA NA NA 1974 NA NA NA NA NA NA NA NA NA NA NA NA 1975 NA NA NA NA NA NA NA NA NA NA NA NA 1976...

214

U.S. Natural Gas Rotary Rigs in Operation (Number of Elements...  

Gasoline and Diesel Fuel Update (EIA)

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's NA NA NA NA NA NA NA 1980's NA NA NA NA NA NA NA NA 354 401 1990's 464 351 331 364 427 385 464...

215

U.S. Onshore Crude Oil and Natural Gas Rotary Rigs in Operation...  

Gasoline and Diesel Fuel Update (EIA)

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 1,120 1,037 959 914 974 1,042 1,075 1,140 1,183 1,250 1,304 1,318 1974 1,283 1,264 1,272 1,280 1,319 1,342 1,387 1,426...

216

U.S. Crude Oil Rotary Rigs in Operation (Number of Elements)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's NA NA NA NA NA NA NA 1980's NA NA NA NA NA NA NA NA 554 453 1990's 532 482 373 373 335 323 306...

217

U.S. Natural Gas Rotary Rigs in Operation (Number of Elements...  

Gasoline and Diesel Fuel Update (EIA)

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 NA NA NA NA NA NA NA NA NA NA NA NA 1974 NA NA NA NA NA NA NA NA NA NA NA NA 1975 NA NA NA NA NA NA NA NA NA NA NA NA 1976...

218

U.S. Crude Oil and Natural Gas Rotary Rigs in Operation (Number...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 1,219 1,126 1,049 993 1,046 1,118 1,156 1,222 1,266 1,334 1,390 1,405 1974 1,372 1,355 1,367 1,381 1,413 1,432 1,480 1,518...

219

U.S. Offshore Crude Oil and Natural Gas Rotary Rigs in Operation...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 99 89 90 79 72 76 81 82 83 84 86 87 1974 89 91 95 101 94 90 93 92 90 91 99 103 1975 94 93 102 102 102 106 109 112 113 112...

220

U.S. Crude Oil and Natural Gas Rotary Rigs in Operation (Number...  

Gasoline and Diesel Fuel Update (EIA)

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's 2,017 1950's 2,154 2,543 2,641 2,613 2,508 2,686 2,620 2,426 1,922 2,071 1960's 1,748 1,761...

Note: This page contains sample records for the topic "vis cous rotary" 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

U.S. Onshore Crude Oil and Natural Gas Rotary Rigs in Operation...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's NA 1950's NA NA NA NA NA NA NA NA NA NA 1960's NA NA NA NA NA NA NA NA NA NA 1970's NA NA NA...

222

U.S. Offshore Crude Oil and Natural Gas Rotary Rigs in Operation...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's NA 1950's NA NA NA NA NA NA NA NA NA NA 1960's NA NA NA NA NA NA NA NA NA NA 1970's NA NA NA 84...

223

Rotary Vapor Compression Cycle Technology: A Pathway to Ultra-Efficient Air Conditioning, Heating and Refrigeration  

Broader source: Energy.gov [DOE]

Lead Performer: Sandia National Laboratories, Livermore, CAPartners: Creative Thermal Solutions, Urbana, IL

224

Rotary Club Address Tuesday, March 30 at 8:00 pm  

E-Print Network [OSTI]

in New York. The emirate of Qatar has invited several prestigious universities to set up specific those reliant on the pumping and exportation of oil. Moreover, we live in a region that is desperately

Shihadeh, Alan

225

Experimental investigation of hinged and spring loaded rolling piston compressors pertaining to a turbo rotary engine  

Science Journals Connector (OSTI)

Hinged rolling piston compressor of a new thermodynamic cycle Pars engine promises high performance figures such as single stage high compression levels and higher volume flow discharge with competitively low input power and torque. The pumping characteristic of the present engine compressor unit has been increased by the implementation of a spring less vane configuration. The reciprocating vane which is usually operated by spring compression in air conditioning and refrigeration unit has been replaced by a hinge vane mechanism. At high speeds, the conventional spring loaded vane which is forced against the eccentrically moving rotor periphery does disconnect and starts rocking. With the new configuration, this mishap has been eliminated and subsequently resulting compressor pressure leaks have been avoided. Compressor experiments have been carried out at predetermined rotor speeds and compressed volume flow amounts and required shaft powers have been measured and derived accordingly. Experimentally determined pressure–volume relations have been compared with isentropic, isothermal, isochoric compressions as well as isobaric process. It is seen that at lower speeds, hinged vane compression is half way between isentropic and isochoric compressions whereas at high speed the compression process approaches further isochoric compression behavior. The isentropic compression efficiency of the hinged vane compressor is around 85% for pressures reaching 9 atm.

Melih Okur; Ibrahim Sinan Akmandor

2011-01-01T23:59:59.000Z

226

Design analysis and comparison between standard and rotary porting systems for IC engine  

Science Journals Connector (OSTI)

Many porting systems for internal combustion engines have been tried and tested over the years, however the basic spring actuated poppet valve system has prevailed over ... last century. In the goal to lower engine

R. Palmisano; H. D. Ng

2012-02-01T23:59:59.000Z

227

Natural Gas Discovery and Development Impacts on Rio Vista and Its Community  

E-Print Network [OSTI]

Modern Rotary Drilling Rig………………………………………………………………………………….Equipment Used on Modern Rotary Drilling Rig 142 Figure A2.Used on Modern Rotary Drilling Rig Source: California

Gbedema, Tometi Koku

2006-01-01T23:59:59.000Z

228

A Sensitive Small-Volume UV/Vis Flow Cell and Total Absorbance Detection System for Micro-HPLC  

Science Journals Connector (OSTI)

Mauro Aiello and Robert McLaren * ... Mauro Aiello and Robert McLaren ... Mauro Aiello and Robert McLaren ...

Mauro Aiello; Robert McLaren

2001-02-17T23:59:59.000Z

229

UV-vis spectra of singlet state cationic polycyclic aromatic hydrocarbons: Time-dependent density functional theory study  

SciTech Connect (OSTI)

A theoretical study of singlet state cations of polycyclic aromatic hydrocarbons is performed. Appropriate symmetry suitable for further calculations is chosen for each of the systems studied. The excitation states of such species are obtained by the time dependent density functional theory (TD-DFT) method. The computations are performed using both Pople and electronic response properties basis sets. The results obtained with the use of different basis sets are compared. The electronic transitions are described and the relationships for the lowest-lying transitions states of different species are found. The properties of in-plane and out-of-plane transitions are also delineated. The TD-DFT results are compared with the experimental data available.

Dominikowska, Justyna, E-mail: justyna@uni.lodz.pl; Domagala, Malgorzata; Palusiak, Marcin [Department of Theoretical and Structural Chemistry, University of ?ód?, Pomorska 163/165, 90-236 ?ód? (Poland)] [Department of Theoretical and Structural Chemistry, University of ?ód?, Pomorska 163/165, 90-236 ?ód? (Poland)

2014-01-28T23:59:59.000Z

230

Photoacoustic optical properties at UV, VIS, and near IR wavelengths for laboratory generated and winter time ambient urban aerosols  

SciTech Connect (OSTI)

We present the laboratory and ambient photoacoustic (PA) measurement of aerosol light absorption coefficients at ultraviolet wavelength (i.e., 355 nm) and compare with measurements at 405, 532, 870, and 1047 nm. Simultaneous measurements of aerosol light scattering coefficients were achieved by the integrating reciprocal nephelometer within the PA's acoustic resonator. Absorption and scattering measurements were carried out for various laboratory generated aerosols, including salt, incense, and kerosene soot to evaluate the instrument calibration and gain insight on the spectral dependence of aerosol light absorption and scattering. Ambient measurements were obtained in Reno, Nevada, between 18 December 2009 and 18 January 2010. The measurement period included days with and without strong ground level temperature inversions, corresponding to highly polluted (freshly emitted aerosols) and relatively clean (aged aerosols) conditions. Particulate matter (PM) concentrations were measured and analyzed with other tracers of traffic emissions. The temperature inversion episodes caused very high concentration of PM{sub 2.5} and PM{sub 10} (particulate matter with aerodynamic diameters less than 2.5 {mu}m and 10 {mu}m, respectively) and gaseous pollutants: carbon monoxide (CO), nitric oxide (NO), and nitrogen dioxide (NO{sub 2}). The diurnal change of absorption and scattering coefficients during the polluted (inversion) days increased approximately by a factor of two for all wavelengths compared to the clean days. The spectral variation in aerosol absorption coefficients indicated a significant amount of absorbing aerosol from traffic emissions and residential wood burning. The analysis of single scattering albedo (SSA), Angstrom exponent of absorption (AEA), and Angstrom exponent of scattering (AES) for clean and polluted days provides evidences that the aerosol aging and coating process is suppressed by strong temperature inversion under cloudy conditions. In general, measured UV absorption coefficients were found to be much larger for biomass burning aerosol than for typical ambient aerosols.

Gyawali, Madhu S.; Arnott, W. Patrick; Zaveri, Rahul A.; Song, Chen; Moosmuller, H.; Liu, Li; Mishchenko, M.; Chen, L-W A.; Green, M.; Watson, J. G.; Chow, J. C.

2012-03-08T23:59:59.000Z

231

Thedefinitiveversionisavailableathttp://diglib.eg.org/andhttp://onlinelibrary.wiley.com/ Eurographics Conference on Visualization (EuroVis) 2013  

E-Print Network [OSTI]

-visualizations. Categories and Subject Descriptors (according to ACM CCS): H.5.m [Information Systems]: Information

Brandes, Ulrik

232

The Atlas Toolbox: Concept and Development of a Rule based Map Component for a GIS-VIS Production Environment  

Science Journals Connector (OSTI)

In commercial mapping and atlas cartography cost-effective production of maps and atlases is a constant issue in ... concept of commercial cartographic enterprises. A combined GIS and visualisation system can be ...

Hartmut Asche; Rita Engemaier

2011-01-01T23:59:59.000Z

233

Int J Comput Vis (2009) 84: 163183 DOI 10.1007/s11263-008-0147-3  

E-Print Network [OSTI]

of nucleotides in given DNA sequences. In computer A.M. Bronstein ( ) · M.M. Bronstein · A.M. Bruckstein · R been proposed for images (Stricker and Orengo 1995; Gudivada and Raghavan 1995; Chen and Wong 2003; Kim

Kimmel, Ron

234

94 Thursday, March 15 Optical absorption and photoluminescence excitation spectroscopy of SWNTs in UV-VisPTH  

E-Print Network [OSTI]

Physics Laboratory, ETH Zurich, 8093 Zurich, Switzerland 2 Micro and Nanosystems, ETH Zurich, 8092 Zurich

Maruyama, Shigeo

235

Optimization Control Strategy for an Air Handling Unit with Dedicated Rotary Desiccant Dehumidification Wheel in Hot and Humid Climate  

E-Print Network [OSTI]

.7 53.5 Error 0.94% 0.42% 1.03% 0.47% DESCRIPTION?OF?DEDICATED?HUMIDITY? CONTROL?UNITS?(HCU) Run#?1?DESIGN R A W B C D E Summer SCFM 0 8750 8750 8750 8750 8750 8278 DB?(?F) 83 60 50 69 70 83 WB?(?F) 79.3 59.5 50 53.2 53.7 79.3 GR/LB 147 76 54 35... 35 147 Diagram?of?the?AHUs?system HCU OA DB????70??F Dew. 39??F CD:?55?F CD:?55?F CD:?55?F SIMULATION?MODEL?PARAMETERS Parameters Value Unit The?lighting?load? 0.93 W/ft2 The?internal?electrical?equipment?load? 1.4 W/ft2 Zone...

Watt, J.

2013-01-01T23:59:59.000Z

236

J. Org. Chem. 1992,57,1897-1899 1897 was rapidly removed by rotary evaporator from a solution of about  

E-Print Network [OSTI]

experimental measurements of heat of combustion (and thus the derived heat of for- t University of Missouri

Chickos, James S.

237

Analysis of the Energy-Saving Potential of a Three-Rotary Wheel Fresh Air-Handling Unit  

E-Print Network [OSTI]

, TRWFAHU can save 10.2% of primary energy and greatly decrease the energy consumption of chiller. If waste heat is available for regenerating the desiccant, the system can achieve greater energy savings. It is feasible to improve indoor air quality (IAQ...

Hao, X.; Zhang, G.; Zou, S.; Liu, H.

2006-01-01T23:59:59.000Z

238

Two rotary motors in F-ATP synthase are elastically coupled by a flexible rotor and a stiff stator stalk  

Science Journals Connector (OSTI)

...Biology, University of Florida, Gainesville, FL...ATP, the universal fuel of the cell, from...kJ/mol elastic energy to smooth the cooperation...The rotation rate was 0.107 rev/s...at a given frame rate, are averaged over...system, the frame rate was 25 s-1...

André Wächter; Yumin Bi; Stanley D. Dunn; Brian D. Cain; Hendrik Sielaff; Frank Wintermann; Siegfried Engelbrecht; Wolfgang Junge

2011-01-01T23:59:59.000Z

239

Physical model for the downhole orbital vibrator (DOV) - II. Rotary correlation wavelets and time-lapse seismics  

Science Journals Connector (OSTI)

......promise for accurate, cost-effective time-lapse...of stable DOV waveform production to time-lapse seismic...enable more rational production decisions for improved...efficiency and lower operating costs (Jack 1997; Ebrom 1998...Pennington 2001; Oil Gas Industry Task Force 2001......

P. C. Leary; L. A. Walter

2005-11-01T23:59:59.000Z

240

DESIGN AND EXPERIMENTAL RESULTS OF SMALL-SCALE ROTARY ENGINES Kelvin Fu, Aaron J. Knobloch, Fabian C. Martinez,  

E-Print Network [OSTI]

construction, high specific power, and self-valving operation. The project aims at developing a "micro Eccentricity Convection Coefficient Ratio of Specific Heats Conduction Coefficient Length Output Shaft Speed

Liepmann, Dorian

Note: This page contains sample records for the topic "vis cous rotary" 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

Introduction to Renewable Energy Technology  

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

to Renewable to Renewable Energy Technology A YEAR-LONG SCIENCE & TECHNOLOGY COURSE by Matthew A. Brown Lakewood High School Lakewood, CO Lakewood High School Red Rocks Community College Smart Energy Living Alliance Metro Denver WIRED Initiative Introduction Page i-i Revision date: 6/1/08 This curriculum is a partnership between: Lakewood High School Matthew Brown, maabrown@jeffco.k12.co.us Suzanne McClung, smcclung@jeffco.k12.co.us 9700 W. 8th Ave., Lakewood, CO 80215 303.982.7096 lakewood-web.jeffco.k12.co.us Red Rocks Community College Cathy Rock, cathy.rock@rrcc.edu 13300 West Sixth Ave., Lakewood, CO 80228 303.914.6513 www.rrcc.edu Smart Energy Living Alliance 21600 W. Colfax Ave, Suite B-450, Lakewood, CO 80215 303.216.2026 www.SmartEnergyLiving.org With funding from: Metro Denver WIRED Initiative

242

Net Energy Billing | Department of Energy  

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

Energy Billing Energy Billing Net Energy Billing < Back Eligibility Agricultural Commercial Industrial Institutional Low-Income Residential Multi-Family Residential Nonprofit Residential Schools Savings Category Bioenergy Commercial Heating & Cooling Manufacturing Buying & Making Electricity Alternative Fuel Vehicles Hydrogen & Fuel Cells Water Solar Home Weatherization Wind Program Info State Maine Program Type Net Metering Provider Maine Public Utilities Commission All of Maine's electric utilities -- investor-owned utilities (IOUs), consumer-owned utilities (COUs), which include municipal utilities and electric cooperatives -- must offer net energy billing for individual customers. Furthermore IOUs are required to offer net metering for shared ownership customers, while COUs may offer net metering to shared ownership

243

III. Vacuum PumpsIII. Vacuum Pumps Gas transfer  

E-Print Network [OSTI]

III. Vacuum PumpsIII. Vacuum Pumps Mechanism Gas transfer Gas capture FunctionFunction Roughing (backing, mechanical pumps) Rotary vane Sorption Rotary lobe Scroll ScrewSorption, Rotary lobe, Scroll Phy250-1, 2011, NanoFab16 #12;IIIIII--A. Roughing: Rotary Vane PumpA. Roughing: Rotary Vane Pump (Gas

Liu, Kai

244

Stratigraphy of the PB-1 well, Nopal I uranium deposit, Sierra Pena Blanca, Chihuahua, Mexico  

E-Print Network [OSTI]

was stuck. A portable rotary rig (Prospector model TKT-1000)out of the hole, the rotary rig was again moved to thethen reamed out using the rotary rig with an 8 ½" diameter

Dobson, P.

2009-01-01T23:59:59.000Z

245

Tribological advancements for reliable wind turbine performance  

Science Journals Connector (OSTI)

...rolling bearing life. Technical report NREL/TP-500-42362Golden, CO:US National Renewable...5872 Canton, OH: The Timken Company. ISO 44061999 Hydraulic fluid power-fluids-method...SwitzerlandInternational Organization for Standardization ISO 762006 Rolling bearings-static load ratingsISO...

2010-01-01T23:59:59.000Z

246

Microstructual investigation of mixed rar earth iron boron processed vis melt-spinning and high-pressure gas-atomization for isotrophic bonded permanent magnets  

SciTech Connect (OSTI)

A solid solution of three rare earths (RE) in the RE{sub 2}Fe{sub 14}B structure have been combined to create the novel mixed rare earth iron boron (MRE{sub 2}Fe{sub 14}B) alloy family. MRE{sub 2}Fe{sub 14}B exhibits reduced temperature dependent magnetic properties; remanence and coercivity. The desired form of MRE{sub 2}Fe{sub 14}B is a powder that can be blended with a polymer binder and compression or injection molded to form an isotropic polymer bonded permanent magnet (PBM). Commercially, Nd{sub 2}Fe{sub 14}B is the alloy of choice for PBMs. Powders of Nd{sub 2}Fe{sub 14}B are made via melt-spinning as can be MRE{sub 2}Fe{sub 14}B which allows for direct comparisons. MRE{sub 2}Fe{sub 14}B made using melt-spinning at high wheel speeds is overquenched and must be annealed to an optimal hard magnetic state. Due to the rare earth content in the MRE{sub 2}Fe{sub 14}B powders, they must be protected from the environment in which they operate. This protection is accomplished by using a modified fluidized bed process to grow a protective fluoride coating nominally 15nm thick, to reduce air oxidation. MRE{sub 2}Fe{sub 14}B has demonstrated reduced temperature dependent magnetic properties in ribbon and PBM form. The real challenge has been modifying alloy designs that were successfully melt-spun to be compatible with high-pressure gas-atomization (HPGA). The cooling rates in HPGA are lower than melt-spinning, as the powders are quenched via convective cooling, compared to melt-spinning, which quenches initially by conductive cooling. Early alloy designs, in gas atomized and melt-spun form, did not have similar phase compositions or microstructures. Alloy additions, such as the addition of zirconium as a nucleation catalyst, were successful in creating similar phases and microstructures in the HPGA powders and melt-spun ribbon of the same MRE{sub 2}Fe{sub 14}B composition.

Buelow, Nicholas Lee

2005-08-01T23:59:59.000Z

247

Computing UV/vis spectra from the adiabatic and vertical Franck-Condon schemes with the use of Cartesian and internal coordinates  

SciTech Connect (OSTI)

We address the effects of using Cartesian or internal coordinates in the adiabatic Franck-Condon (AFC) and vertical Franck-Condon (VFC) approaches to electronic spectra. The adopted VFC approach is a simplified variant of the original approach [A. Hazra, H. H. Chang, and M. Nooijen, J. Chem. Phys. 151, 2125 (2004)], as we omit any contribution from normal modes with imaginary frequency. For our test molecules ranging from ethylene to flavin compounds, VFC offers several advantages over AFC, especially by preserving the properties of the FC region and by avoiding complications arising from the crossing of excited-state potential surfaces or from the failure of the harmonic approximation. The spectral quality for our target molecules is insensitive to the chosen approach. We also explore the effects of Duschinsky rotation and relate the need for internal coordinates to the absence of symmetry elements. When using Duschinsky rotation and treating larger systems without planar symmetry, internal coordinates are found to outperform Cartesian coordinates in the AFC spectral calculations.

Götze, Jan P.; Karasulu, Bora; Thiel, Walter [Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr (Germany)] [Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr (Germany)

2013-12-21T23:59:59.000Z

248

Computational Study on the Working Mechanism of a Stilbene Light-Driven Molecular Rotary Motor: Sloped Minimal Energy Path and Unidirectional Nonadiabatic Photoisomerization  

Science Journals Connector (OSTI)

In 2009, Torras et al.(7) reported a DFT and MP2 study on the ground-state rotational profiles of a molecular “gearbox” [9-(2,3-dihydro-2-phenyl-1H-benz[e)inden-1-ylidene)-9H-fluorene]. Later, Kazaryan et al. reported their calculation on the ground (S0) and first excited singlet (S1) states of an overcrowded biphenanthrylidene [(3R,3?R)-(P,P)-trans-1,1?,2,2?,3,3?,4,4?-octahydro-3,3?-dimethyl-4,4?-biphenanthrylidene] molecular motor by state-averaged spin restricted ensemble-referenced Kohn–Sham (SA-REKS) methods,(8a) and on its excited-state dynamics by a classical OPLS force field method(8b) and semiclassical surface hopping dynamics with a semiempirical quantum mechanics Hamiltonian (OM2/GUGA-MRCI). ... Molecular Rotors and Motors: Recent Advances and Future Challenges ...

Fengyi Liu; Keiji Morokuma

2012-02-13T23:59:59.000Z

249

Talk for the Rotary Club, March 1998 Hello, my name is Brian Blais, and I am a physics graduate student at Brown University. My advisor is  

E-Print Network [OSTI]

in Newton's law of gravitation, used to explain the motion of the planets. At the time people were beginning behavior?" It was this approach which led him to the law of gravitation, which is one of the fundamental the brain. Throw together millions of particles, and the fundamental laws of physics and

Blais, Brian

251

Managing Your Energy: An ENERGY STAR(R) Guide for Identifying Energy Savings in Manufacturing Plants  

E-Print Network [OSTI]

be avoided. Centrifugal compressors are cost effective whento centrifugal and rotary screw compressors. Changing the

Worrell, Ernst

2010-01-01T23:59:59.000Z

252

Energy Efficiency Improvement and Cost Saving Opportunities for the Glass Industry. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network [OSTI]

and CAC 2003). Centrifugal compressors are cost effectiveapplied to centrifugal and rotary screw compressors. Single

Worrell, Ernst

2008-01-01T23:59:59.000Z

253

MICROHOLE TECHNOLOGY -PROGRESS ON BOREHOLE INSTRUMENTATION DEVELOPMENT  

E-Print Network [OSTI]

-sized commercial rigs, consists of a mechanical rotary bit, a hydraulically powered positive displacement motor

254

What Is Visualization? Torsten Mller  

E-Print Network [OSTI]

of Visualization 4 #12;Torsten MöllerEuroVis June 2012 Vis timeline 5 Early Bertin Tukey Cleveland #12;Torsten MöllerEuroVis June 2012 Vis timeline 5 Early Bertin Tukey Cleveland 1987 NSF #12;Torsten MöllerEuroVis June 2012 Vis timeline 7 Early Bertin Tukey Cleveland 1987 NSF #12;Torsten MöllerEuroVis June 2012 Vis

Li, Ze-Nian

255

The final stages of the global eradication of poliomyelitis  

Science Journals Connector (OSTI)

...through the support of Rotary International and UNICEF. Rotary International has engaged heads of state...Colombia, El Salvador, Sri Lanka, etc.). In the...surveillance network and an international stockpile of monovalent OPVs...

2013-01-01T23:59:59.000Z

256

Spectral characterization of Ekman velocities in the Southern Ocean based on surface drifter trajectories  

E-Print Network [OSTI]

that Period (days) Ocean Currents Power Spectral Density !2.2 Power rotary spectra of wind stress and ocean velocity2.2 Power rotary spectra of wind stress and ocean ve- locity

Elipot, Shane

2006-01-01T23:59:59.000Z

257

Natural Gas Weekly Update  

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

Natural Gas Rotary Rig Count Rises to Highest Level since February 2009. The natural gas rotary rig count was 992 as of Friday, August 13, according to data released by Baker...

258

Marcellus Shale Drilling and Hydraulic Fracturing; Technicalities and  

E-Print Network [OSTI]

Pipe · Air Rotary Drilling Rig · Hydraulic Rotary Drilling Rig ­ Barite/Bentonite infused drilling muds A "Thumper Truck" #12;Rigging Up #12;Drilling · The Drill String ­ Diesel Powered ­ Drilling Bit ­ Drilling

Jiang, Huiqiang

259

Solvent Effects on the Valence UV?Vis Absorption Spectra of Topotecan Anticancer Drug in Aqueous Solution at Room Temperature: A Nanoseconds Time-Scale TD-DFT/MD Computational Study  

Science Journals Connector (OSTI)

A.C. thanks CASPUR for financing his Ph.D. fellowship. ... Jorgensen, W. L.; Chandrasekhar, J.; Madura, J. D.; Impey, R. W.; Klein, M. L. J. Chem. ...

Costantino Zazza; Andrea Coletta; Nico Sanna; Giovanni Chillemi; Giordano Mancini; Alessandro Desideri

2010-05-03T23:59:59.000Z

260

Appeared in Workshop on Visualisation in Environmental Sciences (EnvirVis) 2014. The definitive version is available at http://diglib.eg.org/ O. Kolditz, K. Rink and G. Scheuermann (Editors)  

E-Print Network [OSTI]

energy impacts in urban regions, to enable better real-time control and policy decisions for energy of renewables (especially solar and wind energy), demand response, elec- tric vehicles, combined heat and power to be developed that do not exacerbate issues like grid outages, single points of failure, or that miss energy sav

Note: This page contains sample records for the topic "vis cous rotary" 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

Equipment | The Ames Laboratory  

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

Stanat Rolling Mill 75 Ton Wabash Platten Press Rotary Die Swaging Loma Hydraulic Wire Drawing Bench Innovare Hydrostatic Extrusion Press...

262

The Political Economy of Wind Power in China  

E-Print Network [OSTI]

???], ?Analysis of Renewable Energy Cost- Sharing Methods? [???], ?Analysis of Renewable Energy Cost-Sharing Methods? [?and any difference in the cost of renewable energy vis-à-vis

Swanson, Ryan Landon

2011-01-01T23:59:59.000Z

263

Incoherent neutron scattering from multi-element materials  

Science Journals Connector (OSTI)

The differences and distinguishing characteristics of incoherent scattering vis-à-vis diffuse coherent scattering due to atomic disorder are delineated and demonstrated experimentally.

Glinka, C.J.

2011-04-02T23:59:59.000Z

264

Your Data Analysis Needs and Tukey Joseph A. Insley  

E-Print Network [OSTI]

Your Data Analysis Needs and Tukey Joseph A. Insley #12;Tukey- High Performance Visualization DISK VIS NODE VIS NODE VIS NODE VIS NODE 2 ParaView Server 5 DISK 3 4 Client/Server Mode Tukey Visualization Cluster Shell on Tukey 1 11 #12;ParaView Example ¤ Tutorial Page: ¥ www.alcf.anl.gov/user-guides/paraview-tukey

Kemner, Ken

265

Forum for up-to-date training Dear Sir or Madam, dear Col-  

E-Print Network [OSTI]

", turn then into the street called Colshormweg vis-à-vis of the gas station Shell. Arrival by bus from direction ,,Am Pferdeturm", get-off at ,,Scholandstra�e", vis-à-vis of the gas station Shell, 250 m walk the central station Hanover: Underground line 3 or 9, get off at ,,Paracelsusweg", change to bus line 127

Manstein, Dietmar J.

266

Fluid dynamics kill Wyoming icicle  

SciTech Connect (OSTI)

Control of a blowout in which a portion of the drill collar string was extending through the rotary table and into the derrick was compounded by ice building up on the derrick and substructure. However, the momentum kill procedure proved successful. Topics considered in this paper include oil wells, natural gas wells, sleeves, rotary drills, drilling rigs, fluid mechanics, occupational safety, blowouts, drill pipes, rotary drilling, ice removal, and freezing.

Grace, R.D.

1987-04-01T23:59:59.000Z

267

Food Preparation Navigating for Success Training Day Record  

E-Print Network [OSTI]

________ Ladle for serving soup ________ Pancake turner ________ Cooling rack ________ Rotary beater, glasses ________ Cup with handle ________ 2 Knives, fork ________ Oven rack ________ Fork ________ 2 Forks

268

Effects of Harmful Algal Blooms on Competitors  

Science Journals Connector (OSTI)

was collected from the nearby beach at Green Key, near. New Port Richey, on ... the resin with methanol followed by acetone, and solvents removed by rotary ...

2008-01-31T23:59:59.000Z

269

Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in the Cement Industry in China  

E-Print Network [OSTI]

in Shandong Province. Sinton, J.E. , 1996. Energy Efficiencyenvironmental impacts (Sinton, 1996; ITIBMIC, 2004). Rotarycurrently-used rotary kilns (Sinton, 1996). However, future

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

270

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

E-Print Network [OSTI]

be avoided. Centrifugal compressors are cost effective whento centrifugal and rotary screw compressors. Changing theof compressor used: reciprocating, centrifugal, and screw (

Kermeli, Katerina

2013-01-01T23:59:59.000Z

271

Energy Efficiency Improvement and Cost Saving Opportunities for the Fruit and Vegetable Processing Industry. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network [OSTI]

typically using centrifugal compressors or turbo fans) andapplied to centrifugal and rotary screw compressors. At thecompressor fan energy use by up to 50% compared to centrifugal

Masanet, Eric

2008-01-01T23:59:59.000Z

272

Energy Efficiency Improvement and Cost Saving Opportunities for the Dairy Processing Industry  

E-Print Network [OSTI]

typically using centrifugal compressors or turbo fans) andapplied to centrifugal and rotary screw compressors. At thecompressor fan energy use by up to 50% compared to centrifugal

Brush, Adrian

2012-01-01T23:59:59.000Z

273

Energy Efficiency Improvement and Cost Saving Opportunities for the Vehicle Assembly Industry: An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network [OSTI]

et al. 1998). Centrifugal compressors are cost effective2 psi) on a centrifugal air compressor results in savings ofto centrifugal and rotary screw compressors. Changing the

Galitsky, Christina

2008-01-01T23:59:59.000Z

274

E-Print Network 3.0 - african portland cement Sample Search Results  

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

ex... materials produced in rotary kilns are portland cement, quicklime and expanded shale (lightweight) aggregate... is discussed later in this report as a concern when using...

275

DOI-BLM-CA-670-2010-107 | Open Energy Information  

Open Energy Info (EERE)

a normal rotary drilling rig. The rig will be equipped with diesel engines, storage tanks, mud pumps, and other typical auxiliary equipment During drilling, the top of the...

276

BEST  

Office of Legacy Management (LM)

of a quick solution to the problem. -- .- ...I -I .- - - 12 - 2. Secondly, an oil-fired rotary kiln drier was tested. It was immediately successful and eliminated the...

277

Concept development of rotating bed chemical looping combustion reactor:.  

E-Print Network [OSTI]

??In this research a new rotary chemical looping combustion (CLC) reactor was developed which is suitable for larger scales and solves some of the issues… (more)

Hermans, C.W.M.

2013-01-01T23:59:59.000Z

278

Experimental characterization and chemical kinetics study of chemical looping combustion .  

E-Print Network [OSTI]

??Chemical looping combustion (CLC) is one of the most promising technologies to achieve carbon capture in fossil fuel power generation plants. A novel rotary-bed reactor… (more)

Chen, Tianjiao, S.M. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

279

E-Print Network 3.0 - aqueous nickel-nitrilotriacetate modified...  

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

and Developmental Biology, Yale University Collection: Biology and Medicine 3 Rotary F1-ATPase Is the C-terminus of subunit c fixed or mobile? Summary: -Biotech (Ebersberg,...

280

National High Magnetic Field Laboratory: Museum of Electricity...  

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

William Sturgeon developed the first rotary electric motor, a forerunner of the present-day direct-current motor. Related Electricity & Magnetism Pages Timeline: 1820 182...

Note: This page contains sample records for the topic "vis cous rotary" 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

24th Benelux Meeting Systems and Control  

E-Print Network [OSTI]

applied on a half-car test rig.30­14.55 Contribution to the control of a rotary cement kiln - A simu- lation . . . . . . . . . . . . . . . . . . . . . . . . . . .

Serdijn, Wouter A.

282

Blow out preventer handling system  

SciTech Connect (OSTI)

A system for testing and installing a blow out preventer on a floating vessel and offshore drilling rigs, although the system may be used on other rotary drilling rigs, is disclosed. Retractable rotary table supporting beams are disposed over the moon pool and the rotary table is releasably connected to them. Retractable sub-structure beams are provided below the rotary table so that means provided to move the assembled blow out preventer can move it through an opening in the derrick and over the moon pool when the rotary beams are retracted. Retractable moon pool skid beams are provided which support the blow out preventer when skidded through the moon pool opening in the substructure. In one aspect of the invention, the means connecting the rotary table to its support beams are self-aligning to that once the rotary table is aligned it can be removed and replaced without any further alignment. Also, support shoulders are provided on the main blow out preventer and lower riser section thereof which engage and are supported by the moon pool beams, so that the rotary support beams, rotary table and sub-structure support beams can be replaced and the blow out preventer hooked up to the riser, drill string or casing, the moon pool beams retracted and the blow out preventer lowered in the moon pool to the sea floor.

Guinn, D.C.; Haggard, A.K.; Thomas, J.P.

1980-10-28T23:59:59.000Z

283

EIA - Natural Gas Exploration & Reserves Data and Analysis  

Gasoline and Diesel Fuel Update (EIA)

natural gas, and lease condensate (annual). Crude Oil and Natural Gas Drilling Activity Rotary rigs in operation, footage drilled, and active well service rig counts (monthly,...

284

Mapping DNAPL transport contamination in sedimentary and fractured rock aquifers with high resolution borehole seismic imaging Project No. SF11SS13 FY01 Annual Report  

E-Print Network [OSTI]

rig-installed boreholes have been successful at other sedimentary sites, additional boreholes at the Northeast site should be installed with rotary

Geller, J.T.; Majer, E.L.; Peterson, J.E.; Williams, K.H.; Flexser, S.

2001-01-01T23:59:59.000Z

285

E-Print Network 3.0 - acidic leach liquor Sample Search Results  

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

NOx1 specified.2 Proler Rotary... of dioxins, acid gases and other problematic pollutants. The processes studied in detail; identified... -condensible compounds. Also, the...

286

In: Advances in Sustainable Petroleum Engineering and Science ISSN: 1937-7991 Volume 2, Number 2 2011 Nova Science Publishers, Inc.  

E-Print Network [OSTI]

medium. Parameters such as depth of penetration (DOP), rate of penetration (ROP), flow rate, pressure of penetration; rate of penetration. 1. Introduction Existing rotary drilling systems are capable of drilling. Chemical additives are used in rotary drilling system. HPWD present high rates of penetration because

Hossain, M. Enamul

287

1 Copyright 2007 by ASME Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition  

E-Print Network [OSTI]

RESEARCH AND TEACHING: TWO DESIGN COURSES ORCHESTRATED AROUND A ROTARY DIESEL ENGINE PATENT Dirk Schaefer students at Georgia Tech Savannah were orchestrated around a patent of a rotary diesel engine. The design the patent of a diesel engine. It is demonstrated how the courses were designed in order to address higher

288

The Electrification of Railways  

Science Journals Connector (OSTI)

... in the event of any serious accident at the central generating' station. The battery substations are placed at points intermediate to the rotary ... are placed at points intermediate to the rotary substations, and have had the effects of reducing the momentary peaks in the load from ...

1909-04-29T23:59:59.000Z

289

The Use of WBM to Improve ROP in HTHP/Hard Rock Environments  

E-Print Network [OSTI]

on bit (WOB) and rotary speed (RPM) that are applied when drilling. These properties are dependent on the drillstring design and the available power of the drilling rig. Drillstring design has a direct effect on WOB the size and number of drill... Page VITA .......................................................................................................................... 65 vii vii LIST OF FIGURES Page Figure 1 Various Rotary Drilling Bits From Left: Tri-Cone Insert...

Kraussman, Andrew

2012-07-16T23:59:59.000Z

290

To link to this article : DOI:10.1016/j.wear.2014.04.023 URL : http://dx.doi.org/10.1016/j.wear.2014.04.023  

E-Print Network [OSTI]

-speed test rig was designed to simulate the interactions between labyrinth seals and abradable coatings enhancement, we investigated the clearance reduction between the rotary parts in air systems, the successive between a rotary seal, known as a labyrinth seal, and a turbo-engine housing coated with a sacrificial

291

An Advisory System For Selecting Drilling Technologies and Methods in Tight Gas Reservoirs  

E-Print Network [OSTI]

). 13 Fig. 6? Rotary drilling process (Bourgoyne et al. 1986). Two main systems are currently used to rotate the drill bit. As of 2007, for onshore drilling, 55% of the drilling rigs are equipped with a rotary table and Kelly- bushing while 45... ................................................................................................ 11 2.2.2. Discussion .................................................................................................. 12 2.3 Fit For Purpose Land Rig ................................................................................. 16 2.4 Slim...

Pilisi, Nicolas

2010-01-16T23:59:59.000Z

292

Microsoft PowerPoint - 4-07 Herman _1000 hr test talk  

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

L3100-2010-00229 L3100-2010-00229 Results of the 1000 Hour Rotary Microfilter Endurance Test D.T. Herman - SRNL W. Greene, J. Gilmour, T. Ho - SpinTek 11/16/10 EM Waste Processing Technical Exchange 2010 Print Close 2 SRNL-L3100-2010-00229 Rotary Microfilter 1000 Hour Test SpinTek Rotary Microfilter 1 - 25 filter disks ~11 inch diameter ~1 sq ft filter media per disk 1170 rpm 60 ft/s tip speed Turbulence promoters / baffles above and below disks increase shear at the membrane surface and reduce cake buildup 40 psi pressure drop across filter PERMEATE ROTATING MEMBRANES STATIONARY SHEAR ELEMENTS TIE RODS HOLLOW SHAFT Membrane Back plate Epoxy Bead Permeate carrier Print Close 3 SRNL-L3100-2010-00229 Rotary Microfilter 1000 Hour Test Design of the 2 nd Generation 25-Disk Rotary Filter Improvements:

293

Submersible pumping system with heat transfer mechanism  

DOE Patents [OSTI]

A submersible pumping system for downhole use in extracting fluids containing hydrocarbons from a well. In one embodiment, the pumping system comprises a rotary induction motor, a motor casing, one or more pump stages, and a cooling system. The rotary induction motor rotates a shaft about a longitudinal axis of rotation. The motor casing houses the rotary induction motor such that the rotary induction motor is held in fluid isolation from the fluid being extracted. The pump stages are attached to the shaft outside of the motor casing, and are configured to impart fluid being extracted from the well with an increased pressure. The cooling system is disposed at least partially within the motor casing, and transfers heat generated by operation of the rotary induction motor out of the motor casing.

Hunt, Daniel Francis Alan; Prenger, F. Coyne; Hill, Dallas D; Jankowski, Todd Andrew

2014-04-15T23:59:59.000Z

294

This is the title of the presentation on three lines if you need it  

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

30 30 Development of the Rotary Microfilter for Radioactive Waste Applications D.T. Herman M.R. Poirier, D.B. Stefanko, S.D. Fink 5/20/09 EM-21 Technology Exchange 2 Development of the Rotary Microfilter for Radioactive Waste Applications Introduction SRS developing processes to treat radioactive liquid waste Crossflow filter testing has shown filtration rates less than desired Funded by EM-21 to investigated methods to improve separation of sludge solids from high level waste salt solution Identified rotary microfilter as a potential alternative to a crossflow filter 3 Development of the Rotary Microfilter for Radioactive Waste Applications SpinTek Rotary Microfilter 1 - 25 filter disks ~11 inch diameter ~1 sq ft filter media per disk 1170 rpm 60 ft/s tip speed

295

Page not found | Department of Energy  

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

21 - 2730 of 29,416 results. 21 - 2730 of 29,416 results. Download EIS-0336: Draft Environmental Impact Statement Tucson Electric Power Company Sahuarita-Nogales Transmission Line http://energy.gov/nepa/downloads/eis-0336-draft-environmental-impact-statement Download EIS-0238: Record of Decision Site-Wide Environmental Impact Statement for Continued Operation of the Los Alamos National Laboratory in the State of New Mexico http://energy.gov/nepa/downloads/eis-0238-record-decision Download EIS-0265-SA-93: Supplement Analysis Watershed Management Program - Couse/Tenmile Creeks Six-Year Direct Seed Program http://energy.gov/nepa/downloads/eis-0265-sa-93-supplement-analysis Download EIS-0265-SA-101: Supplement Analysis Watershed Management Program http://energy.gov/nepa/downloads/eis-0265-sa-101-supplement-analysis

296

(DOE/EIS-0265/SA-03): Supplement Analysis for the Watershed Management Program EIS 10/16/02  

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

3) 3) Dorothy Welch, KEWU-4 TO: Fish and Wildlife Project Manager Proposed Action: Couse/Tenmile Creeks Six-Year Direct Seed Program Project No: 2002-050-00 Watershed Management Techniques or Actions Addressed Under This Supplement Analysis (See App. A of the Watershed Management Program EIS): 3.2 Conservation Cropping Sequence, 3.3 Conservation Tillage, 3.8 Delayed Seed Bed Preparation, 3.9 Grasses and Legumes in Rotation, 3.26 Evaluate Field Limitations, 3.27 Equipment Calibration and Use Location: Various properties in Anatone, Asotin County, Washington Proposed by: Bonneville Power Administration (BPA) and The Asotin County Conservation District (ACCD). Description of the Proposed Action: BPA proposes to fund a six-year direct seed program

297

Page not found | Department of Energy  

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

01 - 30310 of 31,917 results. 01 - 30310 of 31,917 results. Rebate Net Energy Billing All of Maine's electric utilities -- investor-owned utilities (IOUs), consumer-owned utilities (COUs), which include municipal utilities and electric cooperatives -- must offer net energy billing... http://energy.gov/savings/net-energy-billing Rebate Net Metering New Jersey's net-metering rules apply to all residential, commercial and industrial customers of the state's investor-owned utilities and energy suppliers (and certain competitive municipal... http://energy.gov/savings/net-metering-24 Rebate RPS Customer-Sited Tier Regional Program Note: The first proposal deadline was recently extended from November 8, 2012 to December 5, 2012. Subsequent proposal deadlines remain unchanged. http://energy.gov/savings/rps-customer-sited-tier-regional-program

298

Effect of mass transfer on the oxygen reduction reaction catalyzed by platinum dendrimer encapsulated nanoparticles  

Science Journals Connector (OSTI)

...agglomeration of Pt/C catalyst on hydrogen peroxide formation...2009 ) Importance of catalyst stability vis-a-vis hydrogen...2 O 2 production in PEMFC cathode conditions . J Appl Electrochem...AuPt alloy nanoparticle catalysts in electrocatalytic reduction...

Ioana Dumitrescu; Richard M. Crooks

2012-01-01T23:59:59.000Z

299

Ordered Mesh Network Interconnect (OMNI) : design and implementation of in-network coherence  

E-Print Network [OSTI]

CMOS technology scaling has enabled increasing transistor density on chip. At the same time, multi-core processors that provide increased performance, vis-a'-vis power efficiency, have become prevalent in a power constrained ...

Subramanian, Suvinay

2013-01-01T23:59:59.000Z

300

A Comparison Between Ethanol and Biodiesel Production: The Brazilian and European Experiences  

Science Journals Connector (OSTI)

Brazil stands as the second largest producer of ethanol obtained from sugarcane in the international market, having similar energy potential and much lower cost vis-a-vis ethanol from corn of countries such as th...

Pery Francisco Assis Shikida; Adele Finco…

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Fabricating Electrochromic Thin Films Based on Metallo-Polymers Using Layer-by-Layer Self-Assembly: An Attractive Laboratory Experiment  

Science Journals Connector (OSTI)

Graduate Education/Research; Continuing Education; Polymer Chemistry; Electrochemistry; Materials Science; Surface Science; UV-Vis Spectroscopy; Laboratory Instruction ...

Marco Schott; Matthias Beck; Franziska Winkler; Henning Lorrmann; Dirk G. Kurth

2014-10-22T23:59:59.000Z

302

Rig activity; 1989 was the worst year on record  

SciTech Connect (OSTI)

This article discusses the quantity of oil rotary rigs running in the United States during 1989. Rotary rigs running in 1989 averaged 870, down 7.1% from 1988 and arguably the worst performance since anyone bothered to count. A quick check into dusty historical records reveals that in 1942 the rotary rig count averaged 761 (this was the result of a deliberate government policy of scaling back drilling). However, the number is misleading, because in the early 1940s cable-tool rigs were around 40% to 45% of the total operating at any given time.

Not Available

1990-02-01T23:59:59.000Z

303

Weed Control in Texas Pastures.  

E-Print Network [OSTI]

. It is hdavy, blunt and has no lips. An extra heavy knife and heavy duty clips are used with it. Rotary mowers are of two types-those driven by power takeoff and those powered by the supporting Figure 8. This inexpensive shop-made mower rig is fast.... The two types of ommonly used for pasture mowing are the la1 cutter-bar type and the rotary or shredder hird type machine, built on the principle of g stalk cutter, is sometimes used on areas I for the cutter-bar or rotary mowers and .,,,,, ,~h...

Long, John A.; Trew, E. M.

1958-01-01T23:59:59.000Z

304

Cotton Production: On the Blackland Prairies of Texas.  

E-Print Network [OSTI]

measure. Rotary hoeing is the key supplementary practice. Cultivation, just often and deep enough to control grass and weeds, usually is done with weeps. Approximately 40 acres can be cultivated with a four-row rig in a 12-hour day by an experi... of tilting the sweep on the point. Setting on the point speeds wear and causes increased cutting of cotton roots. Keep these points in mind about rotary hoe- ing: 1. The destructive power of the rotary hoe on weeds increases as the speed increases...

Anonymous,

1961-01-01T23:59:59.000Z

305

Drilling optimization using drilling simulator software  

E-Print Network [OSTI]

equipment is being used on some rigs, adding more overall costs to the drilling operation. Other industries facing a similar dilemma-aerospace, airlines, utilities, and the military- have all resorted to sophisticated training and technology... and Gaebler3). Rotary Speed, RPM Weight on Bit, Klbs Rotary Speed, RPM Weight on Bit, Klbs Rotary Speed, RPM Weight on Bit, Klbs ROP,m/h 10 20 7 Fig. 3 shows the five basic processes encountered during the drilling of a well that account for more...

Salas Safe, Jose Gregorio

2004-09-30T23:59:59.000Z

306

Optical switch using Risley prisms  

DOE Patents [OSTI]

An optical switch using Risley prisms and rotary microactuators to independently rotate the wedge prisms of each Risley prism pair is disclosed. The optical switch comprises an array of input Risley prism pairs that selectively redirect light beams from a plurality of input ports to an array of output Risley prism pairs that similarly direct the light beams to a plurality of output ports. Each wedge prism of each Risley prism pair can be independently rotated by a variable-reluctance stepping rotary microactuator that is fabricated by a multi-layer LIGA process. Each wedge prism can be formed integral to the annular rotor of the rotary microactuator by a DXRL process.

Sweatt, William C. (Albuquerque, NM); Christenson, Todd R. (Albuquerque, NM)

2003-04-15T23:59:59.000Z

307

Optical Switch Using Risley Prisms  

DOE Patents [OSTI]

An optical switch using Risley prisms and rotary microactuators to independently rotate the wedge prisms of each Risley prism pair is disclosed. The optical switch comprises an array of input Risley prism pairs that selectively redirect light beams from a plurality of input ports to an array of output Risley prism pairs that similarly direct the light beams to a plurality of output ports. Each wedge prism of each Risley prism pair can be independently rotated by a variable-reluctance stepping rotary microactuator that is fabricated by a multi-layer LIGA process. Each wedge prism can be formed integral to the annular rotor of the rotary microactuator by a DXRL process.

Sweatt, William C. (Albuquerque, NM); Christenson, Todd R. (Albuquerque, NM)

2005-02-22T23:59:59.000Z

308

A New Concept in Dryer Control  

E-Print Network [OSTI]

, lumber, fiberboard, gypsum board, crumb rubber, etc. In addition, such dryer types as Rotary Drum, Suspension, Flash, Through, Spray, Oven, Tray, Lime Kilns, etc., should be amenable to control utilizing this model. Moreover, it should apply to most thin...

Robinson, J. W.

309

Seeding Rangeland  

E-Print Network [OSTI]

establishment often is slower. Broadcast the seed by aerial or ground applica- tion. Ground application includes broadcasting by hand, rotary spreader, with airstream or exhaust or seeder boxes of the fertilizer-spreader type. Aerial application is popular...

Welch, Tommy G.; Hafercamp, Marshall R.

2001-01-04T23:59:59.000Z

310

Tank Waste Committee Page 1  

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

September 13, 2011 Report, which includes the use of in-tank RMF and small column ion exchange. SRNL's testing is being done on a 25 disc rotary system which would be similar to...

311

The growth characteristics of microcrystalline Si thin film deposited by atmospheric pressure plasma-enhanced chemical vapor deposition  

Science Journals Connector (OSTI)

Microcrystalline silicon thin film was grown by atmospheric pressure plasma-enhanced chemical vapor deposition (AP-PECVD) ... with a cylindrical rotary electrode supplied with 150 MHz very-high-frequency power. T...

Jung-Dae Kwon

2013-11-01T23:59:59.000Z

312

Single-Cell Microbiology: Tools, Technologies, and Applications  

Science Journals Connector (OSTI)

...109). CONCLUSIONS AND FUTURE PERSPECTIVES Individual microbial...much more to explore in the future of single-cell microbiology...bacterial motion: superconducting quantum interference device microscopy...relationship of the flagellar rotary motor of Escherichia coli. Biophys...

Byron F. Brehm-Stecher; Eric A. Johnson

2004-09-01T23:59:59.000Z

313

A Review of New Multilateral Technology at the Rocky Mountain...  

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

lbs to maintain effective penetration rates. The rotary speed was 65 RPM. The average penetration rate was 24.8 fthr. Planned penetration rate was 20 fthr. In the 6" lateral,...

314

DOI-BLM-NV-WO10-2014-0002-CX | Open Energy Information  

Open Energy Info (EERE)

rotary drill rig. A track-mounted off-road crawler equipped with water and fuel tanks would also track out to each drill site to supply the drill rig. Water needed for...

315

The Effects of Coulomb Friction on the Performance of Centrifugal Pendulum Vibration  

E-Print Network [OSTI]

rotors, turbines, and rotary aircraft engines. CPVAs have been used for several decades, having been proposed by E. S. Taylor in 1934 [6] to prevent propeller shaft failures in the Wright R-1820 engine

Feeny, Brian

316

Mass Spectrometry of Intact V-Type ATPases Reveals Bound Lipids and the Effects of Nucleotide Binding  

Science Journals Connector (OSTI)

...unique energy converters . Cell. Mol. Life Sci. 60 , 474 ( 2003 ). 10.1007...assemblies determined using restraints from gas-phase measurements . Structure 17 , 1235...membrane-embedded molecular machines in the gas phase. Here we show that rotary adenosine...

Min Zhou; Nina Morgner; Nelson P. Barrera; Argyris Politis; Shoshanna C Isaacson; Dijana Matak-Vinkovi?; Takeshi Murata; Ricardo A. Bernal; Daniela Stock; Carol V. Robinson

2011-10-21T23:59:59.000Z

317

The State of the Industrial Compressor Market  

E-Print Network [OSTI]

pressures have pushed manufacturers to increase per-employee productivity and implement strict inventory and purchasing procedures to maintain profitability. Many major players that were in the rotary screw industry ten to fifteen years ago (Joy, Chicago...

Perry, W.

318

Technological Trends in Automobiles  

Science Journals Connector (OSTI)

...direct-in-jection diesel as the the prime alternative power plant to the gasoline engine. The rotary engine, Stirling engine, and gas turbine were most frequently discussed as prime candidates in the past. The demand for excellent fuel economy...

Emmett J. Horton; W. Dale Compton

1984-08-10T23:59:59.000Z

319

Point of impact : delivering mission essential supplies to the warfighter through the Joint Precision Airdrop System (JPADS)  

E-Print Network [OSTI]

The Joint Precision Airdrop System (JPADS) exists to execute logistical resupply operations using fixed and rotary wing air in a safe, effective and precise manner in order to deliver supplies and equipment to intended ...

Eaton, Joshua A. N. (Joshua Andrew Norman)

2012-01-01T23:59:59.000Z

320

Storage Systems  

Science Journals Connector (OSTI)

Very different from slow moving rotary stores are fast rotating buffer sorters. In such a rotating dynamic buffer sorter, article units or parcels circulate on a conveyor until they are released in the required.....

Dr. rer. nat. Dr.-Ing. habil. Timm Gudehus…

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Determination of Para Red, Sudan Dyes, Canthaxanthin, and Astaxanthin in Animal Feeds Using UPLC  

Science Journals Connector (OSTI)

......colorant. Para red Sudan I Sudan II Sudan III Sudan IV Astaxanthin Canaxanthin Ethanol...thin and astaxanthin are prone to thermal decomposition; rotary evaporation...separated, but the response of sudan I was too weak. So the gradient......

Xiaolin Hou; Yonggang Li; Guojuan Wu; Lei Wang; Miao Hong; Yongnin Wu

2010-01-01T23:59:59.000Z

322

Process intensification: water electrolysis in a centrifugal acceleration field  

Science Journals Connector (OSTI)

Intensification of hydrogen production by carrying out water electrolysis in a centrifugal acceleration field has been demonstrated. A prototype single cell rotary water electrolyser was constructed, and a number...

L. Lao; C. Ramshaw; H. Yeung

2011-06-01T23:59:59.000Z

323

Evolution of Frictional Behavior of Punchbowl Fault Gouges Sheared at Seismic Slip Rates and Mechanical and Hydraulic Properties of Nankai Trough Accretionary Prism Sediments Deformed at Different Loading Paths  

E-Print Network [OSTI]

Frictional measurements were made on natural fault gouge at seismic slip rates using a high-speed rotary-shear apparatus to study effects of slip velocity, acceleration, displacement, normal stress, and water content. Thermal-, mechanical...

Kitajima, Hiroko

2012-02-14T23:59:59.000Z

324

Some perspectives on pulse detonation propulsion F.K. Lu and D.R. Wilson  

E-Print Network [OSTI]

chamber, a rotary valve injection system for three gas species (fuel, oxidizer and purge), an electric.62 cm section was used to support the mounting of the arc-plug igniter. A photograph of the test rig

Texas at Arlington, University of

325

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

levels 22.2% below year-ago levels and 25.5% below the 5-year average. The Baker Hughes rotary rig count increased by 1 to 1,875 active units this week. Natural gas rigs remained...

326

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

the report week at 80.30 per barrel, or 13.84 per MMBtu. The number of natural gas rotary rigs rose by 3 to 728, according to data Baker Hughes Incorporated released on...

327

U.S. Energy Information Administration (EIA)  

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

26, unchanged from the previous week. The oil rig count increased by 6 units to 1,401 rotary rigs. The weekly average natural gas plant liquids composite price (covering July...

328

IODP Expedition 352: Izu-Bonin-Mariana Forearc Week 3 Report (1016 August 2014)  

E-Print Network [OSTI]

the hole, clearing the rotary table at 0730 h (all times presented are ship local time, which is UTC + 9 running tool was unlatched and pulled back up to the rig floor. Next came the assembly of a BHA composed

329

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

the 5-year average. The total rig count was 1,769, up 12 from a year ago.The natural gas rotary rig count totaled 335 as of February 28, which represents a decline of 7 rigs from...

330

Linear actuator powered flapping wing  

E-Print Network [OSTI]

Small scale unmanned aerial vehicles (UAVs) have proven themselves to be useful, but often too noisy for certain operations due to their rotary motors. This project examined the feasibility of using an almost silent linear ...

Benson, Christopher Lee

2010-01-01T23:59:59.000Z

331

Page 1 of 4 The University of Texas at Arlington  

E-Print Network [OSTI]

-face circular mechanized shield machine, usually of worker-entry diameter, steerable, and with a rotary cutting not applied to those machines where the pressure originates from the main Pipe Jacking rig in the Drive Shaft

Texas at Arlington, University of

332

This document contains the draft version of the following paper: W. Bejgerowski, A. Ananthanarayanan, D. Mueller and S.K. Gupta, "Integrated  

E-Print Network [OSTI]

of a light weight drive-mechanism that can convert the continuous rotary motion of the motor into oscillatory and mechanism design and manufacturing. They concentrated on a robust test rig design rather then a lightweight

Gupta, Satyandra K.

333

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

of about 40 percent from the beginning of the year, when a level of 1,267 natural gas rotary rigs were reported on January 2. The decline in natural gas rigs has occurred in...

334

U.S. Energy Information Administration (EIA)  

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

for the week positioned storage volumes 816 Bcf above year-ago levels. The natural gas rotary rig count, as reported March 23 by Baker Hughes Incorporated, decreased by 11 to...

335

Microsoft Word - Alcoa Extension EBT ROD Attachments - 2010-10...  

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

Administration, August 30, 2010 Figure 2 - Natural Gas Rig Count U.S. Natural Gas Rotary Rigs in Operation (Count) 0 200 400 600 800 1000 1200 1400 1600 1800 A u g - 0 6 O...

336

U.S. Energy Information Administration (EIA)  

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

levels 22.5% below year-ago levels and 16.6% below the 5-year average. The natural gas rotary rig count totaled 356 as of January 24, which represents a decline of 9 rigs from...

337

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

of the United States total rigs running as of the week ended October 22. Natural gas rotary rigs reached an all-time high of 1,082 during the week ended September 3, 2004,...

338

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

to data from Baker Hughes Inc., an increase of 6 from the previous week. The natural gas rotary rig count totaled 318, which represents a decrease of 8 rigs from the previous week...

339

U.S. Energy Information Administration (EIA)  

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

was 78 Bcf, positioning storage volumes 714 Bcf above year-ago levels. The natural gas rotary rig count, as reported February 3 by Baker Hughes Incorporated, decreased by 32 to...

340

An Acquisition and Distribution System for Situational Awareness William E. Green, Paul Y. Oh, and Seunghyun Yoon  

E-Print Network [OSTI]

take over 10 minutes just to lift 20 lbs. Rotary wing aircraft, like helicopters [6] [4] [2], rely images. LEAP consists of a kite fur- nished with a teleoperated camera rig and stabiliza- tion mechanism

Oh, Paul

Note: This page contains sample records for the topic "vis cous rotary" 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

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

count was 1,803 as of March 21, according to data from Baker Hughes Inc. The natural gas rotary rig count totaled 326, which represents a decrease of 18 rigs from the previous...

342

The Centre for Power Transmission  

E-Print Network [OSTI]

, Pitch, Yaw), and any combination of linear or rotary motions can be commanded simultaneously. Cyclic specimen). TWR iterative software is available for accurately matching rig acceleration signals to target

Burton, Geoffrey R.

343

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

below year-ago levels, and 1.2% below the 5-year average. The Baker Hughes natural gas rotary rig count totaled 349 active units as of Friday, June 21, a decline of 4 rigs from...

344

Background  

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

Administration, January 14, 2011 Figure 2 - Natural Gas Rig Count U.S. Natural Gas Rotary Rigs in Operation (Count) 0 400 800 1200 1600 2000 J a n - 0 7 M a r - 0 7 M a y -...

345

U.S. Energy Information Administration (EIA)  

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

levels 48.9% below year-ago levels and 46.2% below the 5-year average. The natural gas rotary rig count totaled 345 as of March 7. This represents an increase of 10 rigs from...

346

U.S. Energy Information Administration (EIA)  

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

the same time last year, according to data released by Baker Hughes Inc. The natural gas rotary rig count totaled 337 as of February 14, a decline of 14 below last week and 84...

347

U.S. Energy Information Administration (EIA)  

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

to 3,629 Bcf, according to EIA's Weekly Natural Gas Storage Report. The natural gas rotary rig count, as reported by Baker Hughes Incorporated, was 818 on December 16. This...

348

U.S. Energy Information Administration (EIA)  

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

count was 1,809 as of March 14, according to data from Baker Hughes Inc. The natural gas rotary rig count totaled 344, which represents a decrease of 1 rig from the previous week...

349

PRELIMINARY TIME ESTIMATES FOR CORING OPERATIONS  

E-Print Network [OSTI]

EQUATIONS 17 FIGURE 1. DRILL STRING ROUND TRIP 19 FIGURE 2. STANDARD ROTARY CORING (RCB) WIRELINE TRIP 21) WIRELINE TRIP 25 FIGURE 5. ESTIMATED RIGGING, WIRELINE, AND SCANNING TIME FOR REENTRY. 27 #12;Preliminary

350

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

below year-ago levels and 23.5% below the 5-year average for this week. The Baker Hughes rotary rig count decreased by 4 to 1,871 active units this week. Natural gas rigs...

351

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

was 192 Bcf, positioning storage volumes 531 Bcf above year-ago levels. The natural gas rotary rig count, as reported by Baker Hughes Incorporated on January 20, fell by 11 to...

352

EIA Energy Information Administration  

U.S. Energy Information Administration (EIA) Indexed Site

week to end at 28.30 or 4.88 per MMBtu. For the week ended April 27, the Baker Hughes Rotary Rig Count for the number of drilling rigs actively exploring for or developing...

353

A High Resolution Micro-Electro-Mechanical Resonant Tilt Sensor  

E-Print Network [OSTI]

-Int Soc Optical Engineering, Bellingham, 2010. [3] W. Jian, G. Guowei, L. Penghua, The Study on Lange-angle CANBUS 2-axis Inclinometer of Rotary Drilling Rig, 2010 2nd IEEE International Conference on Information Management and Engineering (ICIME 2010...

Zou, Xudong; Thiruvenkatanathan, Pradyumna; Seshia, Ashwin A.

2014-01-01T23:59:59.000Z

354

An Aerial Vision Platform for Acquiring Situational Awareness William E. Green and Paul Y. Oh  

E-Print Network [OSTI]

rate of 0.5 ft3 /sec, it would take over 10 minutes to lift 20 lbs. Rotary wing aircraft, like images. LEAP consists of a kite fur- nished with a teleoperated camera rig and stabiliza- tion mechanism

Oh, Paul

355

International land rig locator  

SciTech Connect (OSTI)

Mechanical specifications, ratings, locations, and status are listed for each of the 5,000 contract rotary drilling rigs operated by the more than 700 independent drilling contractors throughout the Free World.

Not Available

1984-03-01T23:59:59.000Z

356

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

below year-ago levels and 21.7% below the 5-year average for this week. The Baker Hughes rotary rig count increased by 12 to 1,883 active units this week. Natural gas rigs...

357

Abstract--Positional control of pneumatic polymeric Tugger and Twistor actuators is directly accomplished simply by  

E-Print Network [OSTI]

/PLC programming. The objective of this paper is to describe test rigs used to develop and ultimately provide, or Tuggers, as well as rotary actuators, or Twistors, have been described and analyzed in several papers

Nagurka, Mark L.

358

U.S. Energy Information Administration (EIA)  

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

levels 31.2% below year-ago levels and 35.3% below the 5-year average. The Baker Hughes rotary rig count totaled 1,860 as of June 6, down 6 units from the previous week. The...

359

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

year-ago levels and 20.3% below the five-year average for this week. The Baker Hughes rotary rig count increased by 6 to 1,889 active units this week. Natural gas rigs...

360

Modeling of a Planar Motion Stage for Precision Positioning Kai Treichel**, Remon Al Azrak*, Johann Reger*, and Kai Wulff*  

E-Print Network [OSTI]

commutation. Finally, model characteristics and parameters are identified from experimental test rig data. I (operated in open-loop), to rotary linear drives, planar induction motors, non contact planar brushless DC

Knobloch,Jürgen

Note: This page contains sample records for the topic "vis cous rotary" 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

U.S. Energy Information Administration (EIA)  

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

levels 27.4% below year-ago levels and 31.0% below the 5-year average. The Baker Hughes rotary rig count totaled 1,858 as of June 20, up 4 units from the previous week. The...

362

U.S. Energy Information Administration (EIA)  

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

for the week positioned storage volumes 799 Bcf above year-ago levels. The natural gas rotary rig count, as reported by Baker Hughes Incorporated on May 4, declined by 7 to 606...

363

U.S. Energy Information Administration (EIA)  

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

levels 7.2% below year-ago levels and 3.0% below the 5-year average. The natural gas rotary rig count totaled 375 this week, an increase of 8 from the previous week, according...

364

Well drilling apparatus  

SciTech Connect (OSTI)

A drill rig for drilling wells having a derrick adapted to hold and lower a conductor string and drill pipe string. A support frame is fixed to the derrick to extend over the well to be drilled, and a rotary table, for holding and rotating drill pipe strings, is movably mounted thereon. The table is displaceable between an active position in alignment with the axis of the well and an inactive position laterally spaced therefrom. A drill pipe holder is movably mounted on the frame below the rotary table for displacement between a first position laterally of the axis of the well and a second position in alignment with the axis of the well. The rotary table and said drill pipe holder are displaced in opposition to each other, so that the rotary table may be removed from alignment with the axis of the well and said drill pipe string simultaneously held without removal from said well.

Prins, K.; Prins, R.K.

1982-09-28T23:59:59.000Z

365

International land rig locator  

SciTech Connect (OSTI)

Mechanical specifications, ratings, locations, and status are listed for each of the 5,000 contract rotary drilling rigs operated by more than 700 independent drilling contractors throughout the Free World.

Not Available

1983-09-01T23:59:59.000Z

366

EIA Energy Information Administration  

U.S. Energy Information Administration (EIA) Indexed Site

for higher consumer prices in the upcoming winter. Other Market Trends: The Baker Hughes Rotary Rig Count of the number of drilling rigs actively exploring for or developing oil...

367

The National Chemical Laboratory  

Science Journals Connector (OSTI)

... Extraction of Metals Group showed the progress it has made in developing a rotary-disk contactor for the solvent extraction of solutes from slurries. A 5-stage unit utilizing 4- ...

E. A. COULSON

1962-09-29T23:59:59.000Z

368

Experimental Investigation of a New Type Expander  

Science Journals Connector (OSTI)

An experimental study of a new type of expander, the Rotary Jet Expander (RJE), has been conducted to advance ... cryogenic engineering. In contrast to reciprocating and turbo-expanders, an RJE is simple in const...

Jian Shao; Yudi Bao; Yongnian Shen; Yangpu Feng…

1986-01-01T23:59:59.000Z

369

Advanced Combustion/Modeling and Analysis Toward HCCI/PCCI in...  

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

in a 60% Efficient Free-Piston Engine Rotary Shaft Power Extraction From a Free-Piston Engine 50% thermo-mechanical efficiency utilizing a free-piston engine in Hybrid vehicles...

370

E-Print Network 3.0 - apc cutting equipment Sample Search Results  

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

Refurbishment Of An Existing Hazardous Waste Incinerator In Eastern Germany On a Tum-Key Contract Basis Summary: of erection of the new rotary kiln and remaining BOP-equipment...

371

Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network [OSTI]

B. , 1990. “Utilisation of Waste Heat from the Cement RotaryAdvanced Concepts of Waste Heat Recovery in Cement Plants”a roller mill. Utilizing waste heat from the kiln exhaust,

Worrell, Ernst

2008-01-01T23:59:59.000Z

372

Evaluation of the Franz System Foot Control in a simulated adaptive tracking task  

E-Print Network [OSTI]

Transmission of Power Through Rotary Pedals. . . Perception of Leg and Foot Positions . . . Foot versus Hand Control. Adaptive Controls. Adaptive Tracking Task. Objective of Research. 10 METHOD. 15 Subjects. Simulator. Experimental Design. Procedure... (Kroemer, 1971); 3) perception of leg and foot positions and motions (Oavies, 1966; Corlett and Megaw, 1967; Drury, 1967); 4) selection and arrangement of pedals (Woodson and Conover, 1970); 5) transmission of power through rotary pedals (Miller, 1944...

Raab, Charles

2012-06-07T23:59:59.000Z

373

Renewal processes and fluctuation analysis of molecular motor stepping  

E-Print Network [OSTI]

We model the dynamics of a processive or rotary molecular motor using a renewal processes, in line with the work initiated by Svoboda, Mitra and Block. We apply a functional technique to compute different types of multiple-time correlation functions of the renewal process, which have applications to bead-assay experiments performed both with processive molecular motors, such as myosin V and kinesin, and rotary motors, such as F1-ATPase.

Jaime E. Santos; Thomas Franosch; Andrea Parmeggiani; Erwin Frey

2005-11-13T23:59:59.000Z

374

Application of Membranes to Treatment of Water Based Exploration and Production Wastes  

E-Print Network [OSTI]

Page 1. 1 Schematic of a rotary drilling rig??????????????????????????????. 4 1. 2 Subsurface reach and rig sizes in the last thirty years?????????????????? 5 1. 3 Waste disposal statistics??????????????????????????????????.. 12 1... equipment and rotary system equipment. A drilling rig is a machine used to drill the wellbore [2], it usually entails every equipment in the drilling process apart from the living quarters. Onshore drilling rig types includes the conventional rig...

Olatubi, Oluwaseun Alfred

2010-10-12T23:59:59.000Z

375

Managed Pressure Drilling Candidate Selection  

E-Print Network [OSTI]

. Rodolphe Leschot invented and patented the earliest form of diamond core drills. T. F. Rowland patented an ?offshore rotary drilling rig?. Captain Lucas, with his Spindletop field wells, Earle Halliburton with his cementing service company, inventors... is the ancient water and brine wells drilled from the prehistoric eras to not so modern times. The second stage is the drilling of the earliest oil wells, and development of basic derricks, rigs, and cable tool rigs. The third stage is the development of rotary...

Nauduri, Anantha S.

2010-07-14T23:59:59.000Z

376

Visualization and Analytics Software at NERSC  

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

Analytics Analytics Visualization and Analytics AVS/Express AVS/Express includes functionality for data visualization and analysis, image processing and data display. It uses a graphical application development environment. Read More » VisIt - 3D Scientific Visualization VisIt is a point-and-click 3D scientific visualization application that supports most common visualization techniques (e.g., isocontouring and volume rendering) on structured and unstructured grids. Due to its distributed and parallel architecture, VisIt is able to handle very large datasets interactively. In addition, VisIt is extensible, allowing users to add data loaders or additional analysis tools to VisIt. The NERSC Analytics Group has developed extensions to VisIt to support NERSC user applications,

377

E-Print Network 3.0 - activation state insights Sample Search...  

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

- ment the state of the visualization at the time an insight occurs. Of course, an exploration process... Evaluating an InfoVis Technique Using Insight Reports Markus...

378

E-Print Network 3.0 - attention improves performance Sample Search...  

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

Vis. Res. 99 - improves or impairs ... Source: Carrasco, Marisa - Department of Psychology, New York University Collection: Biology and Medicine 2 PLoS Biology |...

379

E-Print Network 3.0 - artistas em rede Sample Search Results  

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

OPTIMIZAC AO EM REDES UMA VIS AO GLOBAL Deolinda Dias Rasteiro, Jose Luis Santos, Marta Braz... ; Optimizacao em Redes - Uma Visao Global N fv 1 ; : : : ; v n g...

380

Microsoft PowerPoint - NUG_GPU [Compatibility Mode  

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

to the metal" * NEXUS: Visual Studio plug-in for GPU development * IDL (ITT Vis), MATLAB (Mathworks) C, Fortran * Rich set of data parallel kernels * Extensible with...

Note: This page contains sample records for the topic "vis cous rotary" 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

E-Print Network 3.0 - adaptive morphological feature-based Sample...  

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

Morphology Summary: . Vis., 17:249-270, 2002. 14 F. Cheng and A. N. Venetsanopoulos. An adaptive morphological filter... features based on gabor filters. IEEE Trans. Image Proc.,...

382

Sacred, Epic and Picaresque: Violence and Genre in Cervantes  

E-Print Network [OSTI]

translation: regnum coelorum vim patitur et violenti rapiunt??????? are equivalent to the Latin vim patitur and violentitranslates to Latin as vis (vim in this case), but in both (

Molina, Alvaro

2012-01-01T23:59:59.000Z

383

A Membrane Process for Industrial Water Treatment: From Bench to Pilot Demonstration  

SciTech Connect (OSTI)

A rotary membrane filtration system was used to separate die lubricant from a manufacturing wastewater stream consisting of various oils, hydrocarbons, heavy metals, and silicones. The ultrafiltration membranes reduced organics from initial oil and grease contents by factors of 20 to 25, carbon oxygen demand by 1.5 to 2, and total organic carbon by 0.6, while the biological oxygen demand remained constant. The rotary membranes were not fouled as badly as static membranes, and the rotary membrane flux levels were consistently higher and more stable than those of the static membranes tested. Field testing demonstrated that the rotary ultrafilter can concentrate the die lubricant, remove the glycerin component, and produce a die lubricant suitable for in-plant recycling. The recycling system operated for 6 weeks with only seven cleaning cycles and no mechanical or electrical failures. Test data and quality records indicate that when recycled die lubricant was used, the die casting scrap was reduced from 8.4 to 7.8%. Rotary ultrafiltration presents significant opportunities that can be evaluated further.

Eric S. Peterson; Bill Cleary; Michael Hackett; Jessica Trudeau

2005-01-01T23:59:59.000Z

384

Diverter/bop system and method for a bottom supported offshore drilling rig  

SciTech Connect (OSTI)

This patent describes a system adapted for alternative use as a diverter or a blowout preventer for a bottom supported drilling rig and adapted for positioning beneath a rotary table of the drilling rig, the system comprising: a fluid flow controller having a controller housing with a lower opening and an upper opening and a vertical flow path therebetween and an outlet passage provided in its housing wall, and at least two bases. A method is described for installing a system adapted for alternative connection as a diverter or a blowout preventer for a bottom supported drilling rig positioned beneath a rotary table of the drilling rig after structural casing has been set in a borehole. The method comprises: positioning a first telescoping spool having a lower end and an upper end below the rotary table, the first spool having a first base disposed at its upper end, the first base having a port disposed in its wall; aligning a fluid flow controller having a controller housing wall outlet passage and adapted for alternative use as a diverter or a blowout preventer so that the controller is substantially vertically aligned between a bore of the rotary table above and the structural casing below; and securing the fluid flow controller beneath the drilling rig rotary table.

Roche, J.R.; Alexander, G.G.

1987-03-03T23:59:59.000Z

385

Ignition system  

SciTech Connect (OSTI)

This patent describes an ignition system of an internal combustion engine which consists of: a permanent magnet supported by a rotary member of the engine adapted to rotate in synchronism with a rotary shaft of the engine; a generating coil for generating an electromotive force to produce an electric current as the permanent magnet acts on the generating coil during the rotation of the rotary member; an ignition capacitor charged by the electric current generated by the generating coil; a thyristor caused to turn on by a counter electromotive force generated by the generating coil to thereby cause the ignition capacitor to begin to discharge; and an ignition coil generating a high voltage as the ignition capacitor begins to discharge, to cause a spark discharge to take place in an ignition plug of the internal combustion engine.

Kondo, T.; Ohno, S.

1986-09-16T23:59:59.000Z

386

Advanced servo manipulator  

DOE Patents [OSTI]

An advanced servo manipulator has modular parts. Modular motor members drive individual input gears to control shoulder roll, shoulder pitch, elbow pitch, wrist yaw, wrist pitch, wrist roll, and tong spacing. The modules include a support member, a shoulder module for controlling shoulder roll, and a sleeve module attached to the shoulder module in fixed relation thereto. The shoulder roll sleeve module has an inner cylindrical member rotatable relative to the outer cylindrical member, and upon which a gear pod assembly is mounted. A plurality of shafts are driven by the gears, which are in turn driven by individual motor modules to transmit rotary power to control elbow pitch as well as to provide four different rotary shafts across the bendable elbow joint to supply rotary motive power to a wrist member and tong member.

Holt, William E. (Knoxville, TN); Kuban, Daniel P. (Oak Ridge, TN); Martin, H. Lee (Knoxville, TN)

1988-01-01T23:59:59.000Z

387

Advanced servo manipulator  

DOE Patents [OSTI]

An advanced servo manipulator has modular parts. Modular motor members drive individual input gears to control shoulder roll, shoulder pitch, elbow pitch, wrist yaw, wrist pitch, wrist roll, and tong spacing. The modules include a support member, a shoulder module for controlling shoulder roll, and a sleeve module attached to the shoulder module in fixed relation thereto. The shoulder roll sleeve module has an inner cylindrical member rotatable relative to the outer cylindrical member, and upon which a gear pod assembly is mounted. A plurality of shafts are driven by the gears, which are in turn driven by individual motor modules to transmit rotary power to control elbow pitch as well as to provide four different rotary shafts across the bendable elbow joint to supply rotary motive power to a wrist member and tong member. 41 figs.

Holt, W.E.; Kuban, D.P.; Martin, H.L.

1988-10-25T23:59:59.000Z

388

Subterranean well pipe guiding apparatus  

SciTech Connect (OSTI)

A pipe guiding apparatus is described for vertically aligning pipe section joints in a derrick having a worktable and an elevator for vertically suspending at least one pipe section above the worktable. The apparatus is comprised of a rotary axle for horizontal attachment in the derrick, a frame attached to the rotary axle, a power cylinder for rotating the rotary axle, a pair of guide jaws pivotally attached to the forward end of the frame, and a cylinder for moving the guide jaws between open and closed positions. The power cylinder for rotating the axle and the cylinder for moving the guide jaws between open and closed positions. The power cylinder for rotating the axle and the cylinder for moving the guide jaws are remotely operated so that the frame can be selectively moved to a position whereby the guide jaws are adjacent a vertically suspended pipe section and the guide jaws thereafter are closed on the pipe section. 6 claims.

Scaggs, O.C.

1981-06-23T23:59:59.000Z

389

Ash melting behavior and slag infiltration into alumina refractory simulating co-gasification of coal and biomass  

Science Journals Connector (OSTI)

Abstract In the present study melting behavior of ashes from German brown coal and biomass (wheat straw) as well as from two artificial mixtures of both has been investigated. The four fuel samples were ashed at 450 °C over a period of 26 h. Ash fusion tests and all other measurements have been executed under reducing atmosphere, simulating gasification conditions. The ash melting and wetting properties have been studied for ash cylinders placed onto an alumina refractory at temperatures up to 1600 °C. Optical microscopy and SEM/EDX studies have been performed to analyze the infiltration of slag into the refractory and related progression. For the ash fusion behavior and surface wetting of the refractory clear distinctions from pure ashes have been detected for the blend with 50 wt.% biomass addition due to the formation of eutectics. From optical microscopy and SEM/EDX images of the sections different infiltration properties and mechanisms have been identified. The qualitative infiltration depth and deceleration of slag infiltration by a formation of solid phases have been provided by FactSage™ calculations. In these calculations the contact zone between the two materials has been reconstructed by a stepwise change in the amounts of ash and refractory. The experimental results are very well reflected in this model. Finally, the obtained results suggest low corrosive biomass amounts for co-use in the present gasifier types designed for pure coal.

Guanjun Zhang; Markus Reinmöller; Mathias Klinger; Bernd Meyer

2015-01-01T23:59:59.000Z

390

The Civil Service in a Democracy  

Science Journals Connector (OSTI)

... government, which the dangers facing democratic freedom everywhere necessitate, can avoid over-whelming the liberties which it is trying to defend or demoralizing the community which it is seeking to ... should be maintained vis-d-vis the Cabinet and the executive if a balance of liberty and authority-which is the basis of ordered freedom-is to survive, referred to ...

1950-07-29T23:59:59.000Z

391

3.5.2 Technical and Administrative Staff 3.5.2.1 Administrative Staff  

E-Print Network [OSTI]

for under- graduate students, organizing conferences and special events. · Manages the budget of the department vis-à-vis the Faculty of Exact Sciences and the Research Authority. · In charge of hosting of Mathematics and the Department of Computer Science's graduate students' theses and dissertations from

Adin, Ron

392

`Win-win partnerships? Local people and the private sector in Ecotoursim? TPARI teleconference 14.10.04  

E-Print Network [OSTI]

.10.04 Will Wolmer commentary1 This is a thoughtful paper that subjects the ecotourism partnerships touted as `win-community ecotourism partnerships suggests financial benefits may be long in coming, highly vulnerable to risk to outsource their own ecotourism and safari concessions and gives them bargaining power vis-à-vis the state

393

Measuring the extent and effectiveness of protected areas as an indicator for meeting global biodiversity targets  

Science Journals Connector (OSTI)

...integrate the principles of sustainable development into country...are needed to assess real progress in meeting the...vis-a-vis conservation and sustainable human use (e.g. Pierce...global protected areas estate The WDPA provides the...effectiveness is the test of real political will, expressed...

2005-01-01T23:59:59.000Z

394

Subscriber access provided by -Access paid by the | UC Davis Libraries Nano Letters is published by the American Chemical Society. 1155 Sixteenth  

E-Print Network [OSTI]

Subscriber access provided by - Access paid by the | UC Davis Libraries Nano Letters is published Engineering, Kemper Hall, UniVersity of California at DaVis, One Shields AVenue, DaVis, California 95616, Jack, Nanostructured Energy ConVersion Technology and Research (NECTAR), AdVanced Studies Laboratories, Uni

Islam, M. Saif

395

Industrial Energy Conservation: Dual Incentives  

Science Journals Connector (OSTI)

...assuming an average wind of 20 knots) would...more than 15,000 wind generat-ing units...counting the cost of the offshore platforms, would...billion. If these wind generators were placed...position of the family farm is improving vis-i-vis...300 Soviet vessels fish-ing off the United...

G. Thomas

1974-08-09T23:59:59.000Z

396

Programa de Ps-Graduao em Metrologia Mestrado rea de Concentrao: Metrologia para Qualidade e Inovao  

E-Print Network [OSTI]

Estratégica da Inovação e Sustentabilidade Aborda os fundamentos da Tecnologia Industrial Básica vis-a-vis os modelos conceituais e estudos empíricos de gestão da inovação e de sustentabilidade. Redes Inteligentes

397

Policy Brief October 2014  

E-Print Network [OSTI]

Innovation in California's Plug-in Vehicle Market Eric Cahill and Jamie Davies Contact: Eric Cahill PH&EV on state agencies to "encourage and support auto dealers to increase sales and leases of ZEVs" [7], yet policymakers have little understanding of how to affect PEV sales vis-à-vis dealers. Policy Implications PEV

California at Davis, University of

398

Electric, Gas, and Electric/Gas Energy Options for Cold-Air HVAC Systems  

E-Print Network [OSTI]

An important aspect of the design of cost-effective HVAC systems today is (a) sensitivity to the cost impact of the interplay of utility demand charges, time-of-day rates, gas rates, and gas/electric utility incentive programs vis-à-vis HVAC system...

Meckler, G.

1989-01-01T23:59:59.000Z

399

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-Print Network [OSTI]

;#12;Resumo Muitas tarefas em robotica podem bene ciar perceptualmente do seguimento de alvos moveis no espaco genericos. Apresenta-se a implementac~ao do sistema projectado numa cabeca robotica de vis~ao activa~ao utilizadas no controlo dos movimentos de seguimento. Palavras Chave: vis~ao robotica, percepc~ao, sistemas

Instituto de Sistemas e Robotica

400

Critical Infrastructure and Cyber Security  

E-Print Network [OSTI]

indicators vis-a-vis one another, which is especially important in the midst of the current budgetary uncertainty in Washington. In this study, we present our definitions of the three indicators; an overview of the eighteen sectors of critical infrastructure...

Doll, Abby; Pirrong, Renee; Jennings, Matthew; Stasny, George; Giblin, Andy; Shaffer, Steph; Anderson, Aimee

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Thermophilic Fungi: Their Physiology and Enzymes  

Science Journals Connector (OSTI)

...as the primary mechanism in thermal adaptation, eukaryotic thermophily...fungi may be good sources of a battery of purified enzymes that are...enzymes vis-a-vis their thermal stability. Some thermophilic...figured prominently in the development of biochemistry-suggests...

Ramesh Maheshwari; Girish Bharadwaj; Mahalingeshwara K. Bhat

2000-09-01T23:59:59.000Z

402

Acceptability of Four Transformer Top-Oil Thermal Models: Pt. 2: Comparing Metrics  

E-Print Network [OSTI]

1 Acceptability of Four Transformer Top-Oil Thermal Models: Pt. 2: Comparing Metrics Lida Jauregui transformer top-oil thermal models are examined vis-à-vis training with measured data. Acceptability is unacceptable for model identification purposes. The linear top-oil model is acceptable for FOFA transformers

403

Comparison of Long-Wave Infrared Imaging and Visible/Near-Infrared Imaging of Vegetation for  

E-Print Network [OSTI]

Comparison of Long-Wave Infrared Imaging and Visible/Near-Infrared Imaging of Vegetation using spectral imaging. This has been accom- plished with both visible/near-infrared (Vis/NIR) sunlight-path laser absorption measurements [14]­[16], in-situ visible and near-infrared (Vis/NIR) spectral

Lawrence, Rick L.

404

A New Approach to the Improved Separation and Identification of Complex Mixtures by Gas Chromatography I. Application of Naphtha  

Science Journals Connector (OSTI)

......the components in naphtha or gasoline. The non-polar stationary...literature values, yielded a straight line, thereby, providing...not available from squalane runs alone. For example: (a...intercepts of the universal I-T straight lines vis-a-vis the solute......

N. C. Saha; G. D. Mitra

1973-08-01T23:59:59.000Z

405

-Modified 2-aminopurine ribonucleosides as  

E-Print Network [OSTI]

in duplex RNA Hayden Peacock, Olena Maydanovych, and Peter A. Beal*, * Department of Chemistry, UniVersity of California, DaVis, California 95616 beal@chem.ucdaVis.edu Received January 7, 2010 ABSTRACT Nucleoside.; Veliz, E. A.; Pokharel, S.; Beal, P. A. Methods Enzymol. 2007, 424, 369­386. (2) Suydam, I. T.; Strobel

Beal, Peter A.

406

Vinegar: Its Production and Analysis  

E-Print Network [OSTI]

with the product made from apples. There are however a number of other kinds of vinegar; 7 o f most common and their distinguishing characteristics are given by Leach*" These are: cider, malt, wine, sugar, glucose, distilled, and pyrolygenous vinegar. Malt... indicates is made from sugar- house wastes and low grade molasses. This vinegar is dextro-rotary with polarized light before, and laevo-rotary after inversion. Leach does not mention it, but sugar vinegar is now largely produced merely as a byproduct from...

Moore, Merle M.

1911-09-01T23:59:59.000Z

407

Recirculation of In-Plant Air at General Motors  

E-Print Network [OSTI]

(fitted around the drum itself) is a coarse fiber, non-woven polyester and is designed for use in oil mist and smoke applications. This inner layer holds the outside media away from the drum keeping it from contacting the expanded metal; thus... for cleaning up the in-plant environment at GM is the rotary drum filter. This rotary drum filter is an air cleaning unit manufactured by two indus trial concerns. It consists of an expanded metal drum fitted with two layers of media. The inner layer...

McKibben, V. L.

1983-01-01T23:59:59.000Z

408

Pink Bollworm Management in Texas  

E-Print Network [OSTI]

critical part of a good pink boll- worm management plan. As soon as a field is harvested, stalks should be shredded. Flail shred- ders are somewhat more effec- tive in pink bollworm control than rotary shredders. As soon as the shredding operation... critical part of a good pink boll- worm management plan. As soon as a field is harvested, stalks should be shredded. Flail shred- ders are somewhat more effec- tive in pink bollworm control than rotary shredders. As soon as the shredding operation...

Allen, Charles T.

1995-01-12T23:59:59.000Z

409

Vertical axis wind turbine  

SciTech Connect (OSTI)

Wind turbines are largely divided into vertical axis wind turbines and propeller (Horizontal axis) wind turbines. The present invention discloses a vertical axis high speed wind turbine provided with a starting and braking control system. This vertical axis wind turbine is formed by having blades of a proper airfoil fitted to respective supporting arms provided radially from a vertical rotary axis by keeping the blade span-wise direction in parallel with the axis and being provided with a low speed control windmill in which the radial position of each operating piece varies with a centrifugal force produced by the rotation of the vertical rotary axis.

Kato, Y.; Seki, K.; Shimizu, Y.

1981-01-27T23:59:59.000Z

410

The synthesis of a new class of macropolycyclic polyether ligands / by Robert Martin Holdar  

E-Print Network [OSTI]

for 6 h, then water (250 mL) was cautiously added to 23 decompose the excess lithium aluminium hydride. Stirring was continued at room temperature overnight, Decantation of the ether layer and removal of solvent an a rotary evaporator gave + ( 18. 2... for 6 h, then water (250 mL) was cautiously added to 23 decompose the excess lithium aluminium hydride. Stirring was continued at room temperature overnight, Decantation of the ether layer and removal of solvent an a rotary evaporator gave + ( 18. 2...

Holdar, Robert Martin

2012-06-07T23:59:59.000Z

411

Depositonal and Paleoclimatic Evolution of the Cenozoic High Plains Succession from Core: Haskell Co., Kansas  

E-Print Network [OSTI]

, saturated, and highly heterogeneous (Frye et al., 1956; Macfarlane, 2009). To address these deficiencies, this study used mobile, platform-mounted hollow-stem auger and rotary-vibratory drill rigs to recover the first ever intact drill core of the HPS... in the High Plains aquifer in western Kansas. Methods Drilling and core retrieval were accomplished using an Acker AD-II hollow-stem auger with wireline, split spoon core sampler and S-27 rotary-vibratory drill rig. This combination was chosen to maximize...

Harlow, R. Hunter

2013-12-31T23:59:59.000Z

412

A new well surveying tool  

E-Print Network [OSTI]

directional well was to tip the entire rig, then block up one side of the rotary table so as to incline the uppermost joint of the drill pipe. The accuracy obtained by this method left much to be desired. The technique of controlled directional drilling... by Surveying Device for S and 19 , N and 41 . 21 3. Comparison of Measured Angles and Angles Indicated by Surveying Device for NE snd 9 , W and 45 . . . . . . . ~ 22 ABSTRNl T Ever since the advent of rotary drilling the petroleum industry has been...

Haghighi, Manuchehr Mehdizabeh

1966-01-01T23:59:59.000Z

413

An analytical and numerical model to determine stresses in a Rock Melt Drill produced glass liner for potential use on Mars  

E-Print Network [OSTI]

information on the history of Mars. To access the hydrosphere some device must be used to penetrate the surface to depths of 3-5 kilometers. On Earth these depths are routinely achieved in petroleum and natural gas applications by drilling rigs. By far... the most common type of drilling employed on Earth is rotary drilling. Rotary drilling involves the uses of a rotating drill bit, attached to the surface by a long string of steel pipe, that grinds or cuts the rock, and forms a hole in the formation...

McConnell, Joshua B

2000-01-01T23:59:59.000Z

414

Cost effectiveness of sonic drilling  

SciTech Connect (OSTI)

Sonic drilling (combination of mechanical vibrations and rotary power) is an innovative environmental technology being developed in cooperation with DOE`s Arid-Site Volatile Organic Compounds Integrated Demonstration at Hanford and the Mixed Waste Landfill Integrated Demonstration at Sandia. This report studies the cost effectiveness of sonic drilling compared with cable-tool and mud rotary drilling. Benefit of sonic drilling is its ability to drill in all types of formations without introducing a circulating medium, thus producing little secondary waste at hazardous sites. Progress has been made in addressing the early problems of failures and downtime.

Masten, D.; Booth, S.R.

1996-03-01T23:59:59.000Z

415

An accounting manual for oil well servicing contractors  

E-Print Network [OSTI]

, and bailing of' oil wells, These Jobs had previously been done by the oil companies them- selves, with a standard service rig set up over the well at the time of its completion. The more complicated. Jobs of deepening and work requiring rotary tools were..., with complete set of Rig 0 Lite vapox' proof wix ing, and three Hutoh- inson vapor pxoof floodlights, x One 1V" Emsco Gilbath rotary. Emsco NB?SO, enclosed, 4 sheave travel- ing block B Z. Tx'iplex hooki 60 ?on, 60 C Oilwell swivel, Two centrifugal water...

Robert, Curtis Dean

1949-01-01T23:59:59.000Z

416

Dual rotating shaft seal apparatus  

DOE Patents [OSTI]

The report is directed to apparatus suitable for transferring torque and rotary motion through a wall in a manner which is essentially gas impermeable. The apparatus can be used for pressurizing, agitating, and mixing fluids and features two ferrofluidic, i.e., ferrometic seals. Each seal is disposed on one of two supported shafts and each shaft is operably connected at one end to a gear mechanism and at its other end to an adjustable coupling means which is to be connected to a rotatable shaft extending through a wall through which torque and rotary motion are to be transferred.

Griggs, J.E.; Newman, H.J.

1983-06-16T23:59:59.000Z

417

A two equation method for calculating downhole dynamometer cards with a study of damping effects  

E-Print Network [OSTI]

the rotary motion of the prime mover to oscillating linear motion for the sucker rods. The sucker rod string takes the energy pumping unit? , prime (move polished~ 1 ocl gearbox casing~ tubing sucker I ods pump Figure 3 ? Typical Sucker Rod System... the rotary motion of the prime mover to oscillating linear motion for the sucker rods. The sucker rod string takes the energy pumping unit? , prime (move polished~ 1 ocl gearbox casing~ tubing sucker I ods pump Figure 3 ? Typical Sucker Rod System...

Bastian, Michael John

2012-06-07T23:59:59.000Z

418

A preliminary evaluation of the impact of assimilating AVHRR data on sea ice concentration analyses  

Science Journals Connector (OSTI)

In this paper a method to assimilate data from a visual/infrared (VIS/IR) sensor for the purpose of estimating sea ice concentration is investigated. A novel forward model is presented which allows the reflectances and brightness temperatures from the VIS/IR sensor to be assimilated. The VIS/IR data are assimilated in combination with ice concentration retrievals from a passive microwave sensor using 3D variational data assimilation into a 5 km × 5 km grid of sea ice concentrations. Results are compared with those from an experiment which assimilates only the ice concentration retrievals. It is found that the VIS/IR data have a positive impact as ice on the sea ice state through comparison with independent data. The proportion of points correctly identified asice or open water increased in each region studied by including the AVHRR data, with the largest increase being from 0.921 to 0.935. This positive impact is due to the higher resolution of the VIS/IR data as compared with the passive microwave data, that improves the representation of open water in bays and coastal polynyas. There is however, a degradation in the accuracy of the sea ice state in some regions of the analysis from assimilating the VIS/IR data. Possible ways of improving the impact from VIS/IR data are discussed.

K. Andrea Scott; Mark Buehner; Alain Caya; Tom Carrieres

2013-01-01T23:59:59.000Z

419

Control of Lime Kiln Heat Balance is Key to Reduced Fuel Consumption  

E-Print Network [OSTI]

This article discusses the various heat loads in a pulp mill lime sludge kiln, pointing out which heat loads cannot be reduced and which heat loads can, and how a reduction in energy use can be achieved. In almost any existing rotary lime sludge...

Kramm, D. J.

1982-01-01T23:59:59.000Z

420

State-of-the-Art of Recycling E-Wastes by Vacuum Metallurgy Separation  

Science Journals Connector (OSTI)

SepraDyne Corporation (Denton, TX) developed a high vacuum rotary retort for reclaiming Hg from batteries and the air pollution control scrubber waste. ... The surface soil at the e-waste recycling workshop was polluted with Cu, Zn, and Pb, which were distributed discretely in surface soil. ... This clean and non-polluting technol. ...

Lu Zhan; Zhenming Xu

2014-11-19T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

3D stepper motor system and its GUI A report for project-in-lieu-of-thesis  

E-Print Network [OSTI]

-reluctance step motor 10 2.2 Permanent-magnet step motor 11 2.3 Hybrid step motor 12 3 GUI design essentials 13 4. In this experiment, the rotary axis is controlled to conduct 180 degree half circle motion with a 4.5 foot long shaft

Abidi, Mongi A.

422

Integrated thermal treatment system study: Phase 1 results. Appendix B, Flow sheets and material balances: Volume 2  

SciTech Connect (OSTI)

This document accompanies a full report which describes the testing and evaluation of ten different methods for incinerating mixed low-level radioactive wastes. It consists of flowsheets and diagrams of a rotary kiln, pyrolysis methods, a plasma furnace, a fixed hearth, and thermal desorption methods.

Feizollahi, F.; Quapp, W.J.; Hempill, H.G.; Groffie, F.J.

1994-07-01T23:59:59.000Z

423

Fault diagnosis of roller bearing using fuzzy classifier and histogram features with focus on automatic rule learning  

Science Journals Connector (OSTI)

Roller bearing is one of the most widely used elements in rotary machines. Condition monitoring of such elements is conceived as pattern recognition problem. Pattern recognition has three main phases: feature extraction, feature selection and feature ... Keywords: Decision tree, Feature selection, Fuzzy, Histogram features, Roller bearing, Rule learning

V. Sugumaran; K. I. Ramachandran

2011-05-01T23:59:59.000Z

424

RESEARCH ARTICLE Vestibular contribution to the planning of reach trajectories  

E-Print Network [OSTI]

. We investigated whether the nervous system uses vestibular signals of head rotation to predict°/s in yaw for 2 min and then stopping, and subjects reached during the `post-rotary' period when the deceleration is interpreted by the vestibular system as a rotation in the opposite direction. Arm trajectories

Haslwanter, Thomas

425

ATP Synthase and the Actions of Inhibitors Utilized To Study Its Roles in Human Health, Disease, and Other Scientific Areas  

Science Journals Connector (OSTI)

...Hisabori. 2006. The regulator of the F1 motor: inhibition of rotation of cyanobacterial...ratchet action to regulate this rotary motor enzyme. Proc. Natl. Acad. Sci. USA...scientific areas. | ATP synthase, a double-motor enzyme, plays various roles in the cell...

Sangjin Hong; Peter L. Pedersen

2008-12-01T23:59:59.000Z

426

Variations of Subunit ? of the Mycobacterium tuberculosis F1Fo ATP Synthase and a Novel Model for Mechanism of Action of the Tuberculosis Drug TMC207  

Science Journals Connector (OSTI)

...synthases, the rotor of the F1 motor and the rotor of the FO motor are generally considered to be...the rotary elements of the two motors FO and F1. As shown in Fig...to the discovery of TMC207. Future Med. Chem. 3 :1345-1360...

Goran Biukovi?; Sandip Basak; Malathy Sony Subramanian Manimekalai; Sankaranarayanan Rishikesan; Manfred Roessle; Thomas Dick; Srinivasa P. S. Rao; Cornelia Hunke; Gerhard Grüber

2012-10-22T23:59:59.000Z

427

The physics of life: one molecule at a time  

Science Journals Connector (OSTI)

...notorious equation of quantum mechanics, also...around molecular motors and biopolymers...lead in the near future. bionanomedicine...single molecular motor to nm/pN precision...probe tip (a quantum mechanical effect...rotary molecular motors used in ATP generation...may have a large future impact on society...

2013-01-01T23:59:59.000Z

428

Rows of ATP Synthase Dimers in Native Mitochondrial Inner Membranes Nikolay Buzhynskyy,* Pierre Sens,y  

E-Print Network [OSTI]

Rows of ATP Synthase Dimers in Native Mitochondrial Inner Membranes Nikolay Buzhynskyy,* Pierre Marseille, France ABSTRACT The ATP synthase is a nanometric rotary machine that uses a transmembrane electrochemical gradient to form ATP. The structures of most components of the ATP synthase are known, andtheir

Sens, Pierre

429

The Gas Turbine and Its Significance as a Prime Mover  

Science Journals Connector (OSTI)

...for the development of efficient rotary compressors...essential ex- perience in high-temperature turbine...II. The Velox steam boiler had a combustion circuit...essential to flight at high altitudes. Under this...successful gas turbine (an efficient compressor and an efficient...

C. Richard Soderberg

1948-01-01T23:59:59.000Z

430

Array Design and Construction Motion System  

E-Print Network [OSTI]

With Support Pipe Guide Rail Electronics Data Analysis ±12/24V Electric Motor Rotary Optical Encoder Boron gravity, and keep probe tips in accurate position. - Use small electric motor and moderate-pitch ball flanges - Electric motor driven - Fully steel ­ shielded from C-coil - ±12/24V -45 oz-in max continuous

431

Foundations LEHIGH UNIVERSITY 1 ABC Foundation  

E-Print Network [OSTI]

Foundations LEHIGH UNIVERSITY 1 ABC Foundation Adler Family Foundation Alcaro Family, LP Allentown Rotary Club Foundation Amaranth Foundation The Anderman Foundation Helene & Allen Apter Foundation Association of Performing Arts Presenters Aurora Institute B'nai B'rith Charities Foundation of Allentown

Gilchrist, James F.

432

A new integrated fuzzy bangbang relay control system Farrukh Nagi *, L. Perumal, J. Nagi  

E-Print Network [OSTI]

Keywords: Bang­bang Fuzzy logic control Sliding mode controller Optimal control Pneumatic rotary actuatorA new integrated fuzzy bang­bang relay control system Farrukh Nagi *, L. Perumal, J. Nagi Real-time control a b s t r a c t In this paper, we propose a new fuzzy bang­bang relay controller

Ducatelle, Frederick

433

Johannesburg First Floor, 17 Baker Street,  

E-Print Network [OSTI]

Array Processor Building, housing the MeerKAT computing services and back-up power diesel rotary UPS of the infrastructure elements required to operate the radio telescopes in the reserve; including roads, power, reticulation of power and optical fibre, and links to the national optical fibre network. The Astronomy Reserve

Jarrett, Thomas H.

434

www.ietdl.org Published in IET Control Theory and Applications  

E-Print Network [OSTI]

-stream turbulence [1]. The RUAV hovering over a ship deck operates in a partial ground effect condition where both in a gusty environment. Practical constraints including flapping dynamics, servo dynamics and time lag effect be applied to ship/RUAV landing systems. 1 Introduction Rotary-wing unmanned aerial vehicles (RUAVs

Pota, Himanshu Roy

435

Conservation of waterlogged linoleum  

E-Print Network [OSTI]

???????.. 13 10. Cook stove ????????????????????? 13 11. Linoleum sent to APRL for conservation ?????????. 14 12. Frederick Walton ??????????????????.. 17 13. Floorcloth workers on scaffold ????????????.... 19 14. Armstrong... Cork Co. ? pouring linoleum ?cement? ????.? 21 15. Linoleum calenders ? Armstrong Cork Co. ???????.? 22 16. Rotary machine for producing straight line linoleum ? Armstrong Cork Co. ????????????????..?. 22 17. Workers hand piecing...

Coke, BobbyeJo Evon

2005-02-17T23:59:59.000Z

436

News and Views  

Science Journals Connector (OSTI)

... and so an accelerated service and more stations were required. Transformers are used at the substations to step down the high pressure power to rotary converters which transform the alternating into ... uniform and furnish a reserve of power, a battery of accumulators is installed at each substation. The machines and switchgear at the ...

1931-05-23T23:59:59.000Z

437

[News and Views  

Science Journals Connector (OSTI)

... miles of steel-core aluminium conductors used in the transmission. The distance between consecutive traction substations on the main line is twelve miles. The pressure of transmission is 95 kilovolts, ... transmission is 95 kilovolts, and this is transformed into 560 volts at the open-air substations and then converted into 1500 volts direct current by rotary machines connected in series. ...

1931-09-05T23:59:59.000Z

438

Inverse kinematics for optimal tool orientation control in 5-axis CNC machining  

Science Journals Connector (OSTI)

Abstract The problem of determining the inputs to the rotary axes of a 5-axis CNC machine is addressed, such that relative variations of orientation between the tool axis and surface normal are minimized subject to the constraint of maintaining a constant cutting speed with a ball-end tool. In the context of an orientable-spindle machine, the results of a prior study are directly applicable to the solution of this inverse-kinematics problem. However, since they are expressed in terms of the integral of the geodesic curvature, a discrete time-step solution is proposed that yields accurate rotary-axis increments at high sampling frequencies. For an orientable-table machine, a closed-form solution that specifies the rotary-axis positions as functions of the surface normal variation along the toolpath is possible. In this context, however, the feasibility of a solution is dependent upon the surface normal along the toolpath satisfying certain orientational constraints. These inverse-kinematics solutions facilitate accurate and efficient 5-axis machining of free-form surfaces without “unnecessary” actuation of the machine rotary axes.

Rida T. Farouki; Chang Yong Han; Shiqiao Li

2014-01-01T23:59:59.000Z

439

Updated 2-14 Antonio A. Miguelez  

E-Print Network [OSTI]

for the propulsion & power systems of all Navy and Marine Corps manned and unmanned fixed and rotary wing aircraftUpdated 2-14 Antonio A. Miguelez Director, Propulsion & Power Engineering Department Naval Air, Propulsion & Power Engineering Department, Naval Air Systems Command (NAVAIR), at Patuxent River, Md. His

440

High-resolution single-molecule characterization of the enzymatic states in Escherichia coli F1-ATPase  

Science Journals Connector (OSTI)

...the enzymatic states in Escherichia coli F1-ATPase Thomas Bilyard 1 Mayumi Nakanishi-Matsui...individual molecules of life . The rotary motor F1-ATPase from the thermophilic Bacillus...best-studied of all molecular machines. F1-ATPase is the part of the enzyme F1FO-ATP...

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vis cous rotary" 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

Mixed Columns Made to Order in Gas Chromatography I. Isothermal Analysis  

Science Journals Connector (OSTI)

......simplicity of the mixed phase, price, tem- perature stability...2-ethyl-hexyl sebacate, Ucon Oil LB 550X, Squalane, and...with a water pump while heating with a water-bath...under the vacuum of an oil rotary pump. Chromatograms...Di-2-ethylhexylsebacate (B) 10% Ucon oil LB 550X (R) 35% Squalane......

M. J. Molera; J. A. Garcia Dominguez; J. Fernandez Biarge

1969-05-01T23:59:59.000Z

442

DYNAMIC SIMULATION OF MONO-TUBE CAVITY RECEIVERS FOR DIRECT STEAM GENERATION  

E-Print Network [OSTI]

that includes a 4 cylinder steam engine coupled with a 3 phase generator. This paper describes ongoing research cavity receiver [2] mounted to the 500 m2 dish receiver supports, a modified steam engine coupled transports superheated steam via rotary joints to the ground and then to a 4 cylinder steam engine

443

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 19, NO. 1, FEBRUARY 2010 99 A Microfabricated Spiral-Groove Turbopump  

E-Print Network [OSTI]

in hydrocarbons include the following: gas turbine generators [1]­[3], steam engine generators [4], rotary engine sought after in the miniaturized heat engine and fuel cell technologies being developed. Compact liquid 20783 USA (e-mail: cwaits@arl.army.mil). M. McCarthy is with the Department of Mechanical Engineering

Rubloff, Gary W.

444

A PRODUCTIVITY AND COST COMPARISON OF TWO NON-COMMERCIAL FOREST FUEL REDUCTION MACHINES  

E-Print Network [OSTI]

A PRODUCTIVITY AND COST COMPARISON OF TWO NON-COMMERCIAL FOREST FUEL REDUCTION MACHINES M. Chad-commercial equipment designs in a fuel reduction treatment. The machines were: 1) a swing-boom excavator (SBE) equipped with a rotary disc mulching head, and 2) a drive-to- tree flexible tracked machine (FTM) with a rotating drum

Bolding, M. Chad

445

Steam Cars: Jet Tycoon, Others, Espouse the Cause  

Science Journals Connector (OSTI)

...period at a total cost of $220 million...has a complete engine system already...Lear says the engine in the standard model will be about 400...bit less than the engine sys-tem weighs...to convert the reciprocating motion to ro-tary...

Andrew Jamison

1969-01-24T23:59:59.000Z

446

Novel Mechatronics Design for a Robotic Fish* Jindong Liu, Ian Dukes, Huosheng Hu  

E-Print Network [OSTI]

systems, namely Robotic Fish. Instead of the conventional rotary propeller used in ship or underwater than the propeller-based propulsion. Therefore, the robotic fish could be used in many marine and military fields such as exploring fish behaviours, detecting the leakage in oil pipelines, sea bed

Hu, Huosheng

447

QU, JUN. Development of Cylindrical Wire Electrical Discharge Machining Process and Investigation of Surface Integrity and Mechanical Property of EDM Surface  

E-Print Network [OSTI]

J. Shih) The cylindrical wire Electrical Discharge Machining (EDM) process was developed to generate-resistant underwater rotary spindle was designed and added to a conventional two-axis wire EDM machine to enable and recast layer and to understand the effects of wire EDM process on the machined WC-Co surface. The micro

Shih, Albert J.

448

Thirty-thousand-year-old distant relative of giant icosahedral DNA viruses with a pandoravirus morphology  

Science Journals Connector (OSTI)

...that of other large eukaryotic...mining, or drilling. Climate change...corresponded to a large release of...mining and drilling). It thus becomes...silt with large ice wedges...40-cm long borehole was made by slow rotary drilling without the...

Matthieu Legendre; Julia Bartoli; Lyubov Shmakova; Sandra Jeudy; Karine Labadie; Annie Adrait; Magali Lescot; Olivier Poirot; Lionel Bertaux; Christophe Bruley; Yohann Couté; Elizaveta Rivkina; Chantal Abergel; Jean-Michel Claverie

2014-01-01T23:59:59.000Z

449

Biodegradation of organic compounds in vadose zone and aquifer sediments.  

Science Journals Connector (OSTI)

...rotary head. Conventional, steam-cleaned, hollow-stem augers...phos- phorus, by using the ignition method (34); total nitrogen...mineral nitrogen, by using steam distillation (22); and exchangeable...substrates. This suggestion is based on the assumption that the affinities...

A Konopka; R Turco

1991-08-01T23:59:59.000Z

450

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

above year-ago levels and 3.0% below the five-year average for this week. The total U.S. rotary rig count decreased by 43 active units to 1,633 rigs for the week ending January...

451

U.S. Energy Information Administration (EIA)  

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

below year-ago levels and 6.8% below the five-year average for this week. The total U.S. rotary rig count for the week ending October 31 increased by 2 units to 1,929 rigs,...

452

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

below year-ago levels and 9.8% below the five-year average for this week. The total U.S. rotary rig count for the week ending November 26 fell by 12 units to 1,917 rigs, according...

453

Crude Oil and Natural Gas Drilling Activity  

Gasoline and Diesel Fuel Update (EIA)

Jul-14 Aug-14 Sep-14 Oct-14 Nov-14 Dec-14 View History Rotary Rigs in Operation 1,876 1,904 1,930 1,924 1,925 1,882 1973-2014 By Site Onshore 1,819 1,842 1,866 1,867 1,872 1,824...

454

Mexico's Energy Reform and the Potential Impact on Texas' Transportation System  

E-Print Network [OSTI]

preparation ­ Heavy bulldozers and dump trucks to build road to serve pad site · Move rotary rig to pad site;Transportation and Well Development · Five-step well development process: ­ Site preparation ­ Rigging up ­ Drilling ­ Hydraulic fracturing ­ Rigging down #12;Transportation and Well Development · Initial site

455

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

below year-ago levels and 6.4% below the five-year average for this week. The total U.S. rotary rig count for the week ending November 14 increased by 3 units to 1,928 rigs,...

456

[Outlook for 1997 in the oil and gas industries of the US  

SciTech Connect (OSTI)

This section contains 7 small articles that deal with the outlook for the following areas: US rotary rigs (Moving back up, finally); US production (Crude decline continues, gas rising); producing oil wells (Oil stays steady); producing gas wells (Well numbers up again); drilling and producing depths (New measured depths records); and US reserves (Gas reserves jump; oil dips slightly).

NONE

1997-02-01T23:59:59.000Z

457

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

above year-ago levels and 1.2% below the five-year average for this week. The total U.S. rotary rig count decreased by 90 active units to 1,543 rigs for the week ending January...

458

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

below year-ago levels and 9.5% below the five-year average for this week. The total U.S. rotary rig count for the week ending December 5 increased by 3 units to 1,920 rigs,...

459

IODP Expedition 352: Izu-Bonin-Mariana Forearc Week 4 Report (1723 August 2014)  

E-Print Network [OSTI]

of Expedition 352 (IBM Forearc) began while coring Core U1440B-16R with the rotary core barrel (RCB) from 202 was tripped to surface, with the bit clearing the seafloor at 1120 h and the rig floor at 2100 h on 18 August

460

U.S. Energy Information Administration (EIA)  

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

above year-ago levels and 5.5% below the five-year average for this week. The total U.S. rotary rig count decreased by 74 units to 1,676 rigs for the week ending January 16,...

Note: This page contains sample records for the topic "vis cous rotary" 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

U.S. Energy Information Administration (EIA)  

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

above year-ago levels and 2.1% below the five-year average for this week. The total U.S. rotary rig count decreased by 29 units to 1,811 rigs for the week ending January 2,...

462

Relating horsepower to drilling productivity  

SciTech Connect (OSTI)

Many technological advancements have been made in explosive products and applications over the last 15 years resulting in productivity and cost gains. However, the application of total energy (engine horsepower) in the majority of rotary drilling technology, has remained virtually unchanged over that period. While advancements have been made in components, efficiency, and types of hydraulic systems used on drills, the application of current hydraulic technology to improve drilling productivity has not been interactive with end users. This paper will investigate how traditional design assumptions, regarding typical application of horsepower in current rotary drill systems, can actually limit productivity. It will be demonstrated by numeric analysis how changing the partitioning of available hydraulic energy can optimize rotary drill productivity in certain conditions. Through cooperative design ventures with drill manufacturers, increased penetration rates ranging from 20% to 100% have been achieved. Productivity was increased initially on some rigs by careful selection of optional hydraulic equipment. Additional gains were made in drilling rates by designing the rotary hydraulic circuit to meet the drilling energies predicted by computer modeling.

Givens, R.; Williams, G.; Wingfield, B.

1996-12-31T23:59:59.000Z

463

U.S. Energy Information Administration (EIA)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

above year-ago levels and 7.3% below the five-year average for this week. The total U.S. rotary rig count for the week ending December 12 decreased by 27 units to 1,893 rigs,...

464

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

below year-ago levels and 6.2% below the five-year average for this week. The total U.S. rotary rig count for the week ending November 7 fell by 4 units to 1,925 rigs, according...

465

IODP Expedition 352: Izu-Bonin-Mariana Forearc Week 6 Report (31 August6 September 2014)  

E-Print Network [OSTI]

.3 mbsf (Cores 17R to 20R). After accumulating 39.1 h on the rotary core barrel (RCB) bit, the drill of rotating time, so it was pulled back to the rig floor to be changed. After replacing the RCB bit, the drill

466

System for stabbing well casing  

SciTech Connect (OSTI)

Apparatus for stabbing well casing to join casing sections to each other, includes a rotary table assembly for supporting a casing section in a well bore, a derrick over the rotary table assembly, a crown block at the top of the derrick, a first piston and cylinder subassembly pivotally mounted on one side of the derrick over the rotary table assembly and below the crown block for pivotation about a horizontal axis, a second piston and cylinder subassembly pivotally mounted on a second side of the derrick for pivotation about a horizontal axis. The second piston and cylinder subassembly is located over the rotary table assembly and below the crown block and extends substantially normal to the direction of extension of the first piston and cylinder subassembly. The cooperating casing clamping elements are carried on the piston rods of the first and second piston and cylinder subassemblies, and counter balancing subassemblies are connected to the first and second piston and cylinder subassemblies for pivoting the first and second piston and cylinder subassemblies to a vertically extending inoperative position.

McArthur, J.R.

1984-04-03T23:59:59.000Z

467

The place of useful learning | www.strath.ac.uk/afrc University of Strathclyde Glasgow G1 1XQ  

E-Print Network [OSTI]

............................................... 6 ACB Loire Super Plastic Forming Rig ­ 720x720 mm..................... 7 ACB Super Plastic Forming Rig-SPF/FCC 2400x2000 mm...........8 Die Wear Rig - Super Plastic Forming-316.............................................16 MJC Rotary Forge ­ RFN 200T.............................................. 17 500 tonne hydraulic sheet

Mottram, Nigel

468

IODP Expedition 342: Paleogene Newfoundland Sediment Drifts Week 1 Report (1-9 June 2012)  

E-Print Network [OSTI]

and pressure signals were successfully transmitted to the rig floor and recorded. After circulation was re from the hole. The bit cleared the rotary table at 0110 h ending Hole U1402A. #12;Since barrel on the rig floor and placed into split liner sections. The coring system was disassembled

469

Crude Oil and Natural Gas Drilling Activity  

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

Jun-14 Jul-14 Aug-14 Sep-14 Oct-14 Nov-14 View History Rotary Rigs in Operation 1,861 1,876 1,904 1,930 1,924 1,925 1973-2014 By Site Onshore 1,804 1,819 1,842 1,866 1,867 1,872...

470

U.S. Energy Information Administration (EIA)  

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

above year-ago levels and 3.8% below the five-year average for this week. The total U.S. rotary rig count decreased by 61 units to 1,750 rigs for the week ending January 9,...

471

CX-011393: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Build and Test of a Novel, Commercial-Scale Wave Energy Direct0Drive Rotary Power Take-Off Under Realistic Open-Ocean Conditions CX(s) Applied: A9, B5.15 Date: 12/16/2013 Location(s): Oregon, Virginia, Colorado Offices(s): Golden Field Office

472

Using Bayesian Network to Develop Drilling Expert Systems  

E-Print Network [OSTI]

in foam UBD ............................................ 82 67 Overall air and gas UBD ........................................................................... 83 68 Rotary and hammer drilling options... .......................................................... 84 69 A list of limits and challenges for air and gas UBD .................................. 85 70 A list of possible gas drilling operations ................................................... 86 71 A list of possible rig equipment...

Alyami, Abdullah

2012-10-19T23:59:59.000Z

473

U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

levels 24.4% below year-ago levels and 27.6% below the 5-year average. The Baker Hughes rotary rig count increased week-over-week by 1 rig, to 1,874 as of July 3. The number of...

474

Optimizing bit hydraulics increases penetration rate  

SciTech Connect (OSTI)

At some point, rate of penetration depends as much or more on hydraulics as on bit weight and rotary speed. An easy-to-follow graphical technique shows how to maximize ROP at the rig by finding the optimum pressure drop through the bit and the highest possible crossflow velocity.

Robinson, L.

1982-07-01T23:59:59.000Z

475

IODP Expedition 328: Cascadia Subduction Zone ACORK Observatory Site U1364 Summary  

E-Print Network [OSTI]

(VIT) was deployed to observe the bit contacting the seafloor at 1329.0 m below rig floor (mbrf to the rig floor. After jetting in the 16 inch casing and re-entry cone, our next objective was to drill a 14) mud. The drill string was recovered with the bit clearing the rotary table at 1435 hr on 14 September

476

U.S. Energy Information Administration (EIA)  

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

levels 29.1% below year-ago levels and 33.1% below the 5-year average. The Baker Hughes rotary rig count decreased by 6 for the second week in a row, to 1,854 as of June 13. The...

477

URANIUM METAL POWDER PRODUCTION, PARTICLE DISTRIBUTION ANALYSIS, AND REACTION RATE STUDIES OF A HYDRIDE-DEHYDRIDE PROCESS  

E-Print Network [OSTI]

atmosphere to reduce sample oxidation .................................................................................................. 13 12 Aluminum oxide crucible located at the bottom of the hydride-dehydride rig. ... 14 13 Furnace and furnace... at 60 minutes, 5psig, 250?C hydride, 325?C dehydride ................................................................................................... 30 27 Rotary kiln designed at ORNL for use in voloxidation...

Sames, William

2011-08-08T23:59:59.000Z

478

Hydraulic drill string breakdown and bleed off unit  

SciTech Connect (OSTI)

An apparatus is described for use within an oil well rig for decoupling a tubing string into pipe segments comprising, in combination: rotary tong means for applying an unthreading torque to a first, upper pipe segment within the tubing string; torque resisting means for securing a second, lower pipe segment within the tubing string against the unthreading torque; containing means, intermediate the rotary tong means and the torque resisting means, enclosing a threaded joint of the tubing string, adapted for containing pressurized gases, liquids, and particulates, released from the threaded joint upon the decoupling; fluid communicating means for allowing fluid communication between the containing means and a receiving point adapted for receiving the pressurized gases, liquids, and particulates; means for moving the rotary tong means, the torque resisting means and the containing means between a closed, engaging position with the tubing string and an open position; and means for horizontally moving the rotary tong means, the torque resisting means and the containing means between a position adjacent the tubing string and a position away from the tubing string.

Zeringue, F.J. Jr.

1987-02-17T23:59:59.000Z

479

IODP Expedition 352: Izu-Bonin-Mariana Forearc Week 5 Report (2430 August 2014)  

E-Print Network [OSTI]

of Expedition 352 (IBM Forearc) began while pulling the drill string out of Hole U1440B. The rotary core barrel (RCB) bit cleared the seafloor at 0100 h on 24 August 2014 and was back on the rig floor at 0945 h casing at 96 mbsf. The triple combo tool string was rigged up with the Ultrasonic Borehole Imager (UBI

480

CX-100012: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Build and Test of a Novel, Commercial-Scale Wave Energy Direct0Drive Rotary Power Take-Off Under Realistic Open-Ocean Conditions CX(s) Applied: A9, B3.6 Date: 08/27/2014 Location(s): Oregon Offices(s): Golden Field Office Technology Office: Water Power Program Award Number: DE-EE0006610

Note: This page contains sample records for the topic "vis cous rotary" 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.


481

International guide: blasthole drills  

SciTech Connect (OSTI)

This survey is a comprehensive quick reference guide for surface mine operators. It details rotary blasthole drill rigs that are available around the world. More than 60 drills, each with a pulldown of about 125 kN, are included in the survey.

Chadwick, J.R.

1982-01-01T23:59:59.000Z

482

Becker, K., Malone, M.J., et al., 1998 Proceedings of the Ocean Drilling Program, Initial Reports, Vol. 174B  

E-Print Network [OSTI]

(drill-pipe measurement from rig floor, mbrf): 4457.1 Total depth (drill-pipe measurement from rig floor, mbrf): 4526.6 Distance between rig floor and sea level (m): 11.6 Water depth (drill-pipe measurement Program (ODP) Leg 45, and the sediments at the site were not recov- ered well with the rotary core barrel

483

Physics and the Search for Hydrocarbons  

E-Print Network [OSTI]

Integrated Project Management #12;Rig Drill Pipe Drill Bit Drilling Tools Drilling Fluid Drill rig rotates. Drilling Rig Drill Collars #12;Drill String Technology Electromagnetic & Nuclear Direction & Inclination in real time for decisions. Drill bit Rotary Steerable Direction & Inclination of the drill bit

Dai, Pengcheng

484

A Survey of Power Plant Designs  

E-Print Network [OSTI]

is mixed with compressed air in the combustion chamber and burned. High-pressure combustion gases spin;Sustainable Energy, MIT 2005. #12;Allen Fossil Plant is on the Mississippi River five miles southwest (TVA), http://www.tva.gov #12;Coal fired Plant Otpco.com Fuel handling (1) Rotary dumper (2) Storage

Ervin, Elizabeth K.

485

The National Chemical Laboratory  

Science Journals Connector (OSTI)

... a compact solvent extraction plant embodying four stages of a recently developed rotatory-disk film contactor, which operates directly on unfiltered leach slurries. Extraction from pulps appears to be a ... leach slurries. Extraction from pulps appears to be a promising technique, and the rotary contactor has already been tested over lengthy periods.

J. S. ANDERSON

1960-12-17T23:59:59.000Z

486

K. McDonald Princeton U.  

E-Print Network [OSTI]

­878­1711) who developed this technology in 1948. Figure 6 shows an air cylinder made by Eldorado to hold of the tip of a gun­drill bit. 2 #12; Figure 5: Sketch of an air cylinder to position the bushing against,000 rpm. See Figure 6. Variations on this rotary seal are made by Eldorado, Deublin (Bryce Green, 847

McDonald, Kirk

487

How To Order Our easy Build-A Switch concept allows you to mix and match options to create the switch you need. Below is a complete listing of  

E-Print Network [OSTI]

Series 8mm DIP Coded Rotary Switches Features/Benefits · Process sealed ­ withstands soldering Example: Switch Function CD08R 8 position, BCD CD08C 8 position, BCD complement CD10R 10 position, BCD CD10C 10 position, BCD complement CD16R 16 position, Hexadecimal CD16C 16 position, Hexadecimal

Berns, Hans-Gerd

488

JOURNALDE PHYSIQUE IV ColloqueC7, supplkmentau Journal de Physique 111, Volume3,novembre 1993  

E-Print Network [OSTI]

to that of a mixture of light benzene and bitumious coal tar if the pyrolysis gas is used as fluidizing gas. The other in the gas conditioning. Furthermore, the pollutants are concentrated in a coke-like residue surrounding them in melting vessels, blast furnaces, autoclaves, tube reactors, rotary kilns, coking chambers and fluidized

Paris-Sud XI, Université de

489

Information Transmission with a Multi-Finger Tactual Display Hong Zhang Tan  

E-Print Network [OSTI]

kinesthetic stimulation (low-frequency large-amplitude motions) as well as vibrotactile stimulation (high-frequency- dle finger. Each actuator utilizes a disk-drive head-positioning motor augmented with angular position feedback from a precision rotary variable differential transformer (RVDT). A floating- point DSP system

Tan, Hong Z.

490

THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT  

E-Print Network [OSTI]

THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT Stephen E. Schwartz Rotary Club of Patchogue November 9, 2005 http://www.ecd.bnl.gov/steve/schwartz.html #12;#12;THE GREENHOUSE EFFECT #12 Now with the greenhouse effect, we ARE doing something about it. What are we doing? #12;370 360 350

Schwartz, Stephen E.

491

Mastication: A fuel reduction and site preperation alternative* ~ e f f~albrook',Han-Sup an^: Russell T. ~raham',Theresa B. ~ a i n ~and Robert ~ e l i n e r ~  

E-Print Network [OSTI]

Mastication: A fuel reduction and site preperation alternative* ~ e f f~albrook',Han-Sup an piling/burning site preparation and fuel treatment alternatives. Keywords: mastication. activity fuels of mastication used to treat activity and standing live fuels. In this study, a rotary head masticator was used

Fried, Jeremy S.

492

Crystallographic Orientation-Aligned ZnO Nanorods Grown by a Tin Catalyst  

E-Print Network [OSTI]

, has a wide range of applications in solar cells,1 sensors,2-4 optoelectronic devices, and surface a horizontal tube furnace, a rotary pump system, and a gas supply system. A mixture of commercial ZnO, SnO2). The entire length of the tube furnace is 50 cm. The desired nanostruc- tures were deposited onto an alumina

Wang, Zhong L.

493

Micro-HCCI Combustion: Experimental Characterization and Development of a  

E-Print Network [OSTI]

: The Micro-Gas Turbine Engine at the Massachusetts Institute of Technology [2]; The MEMS Rotary EngineMicro-HCCI Combustion: Experimental Characterization and Development of a Detailed Chemical Kinetic is developed and used to interpret the experimental results and to explore HCCI combustion with a free

Zachariah, Michael R.

494

Mechanics at the British Association  

Science Journals Connector (OSTI)

... diverging from simple harmonic tides; and to determine the comparative effect of tides varying from spring to neap. It would be impossible in this brief report of the proceedings of ... dry and clear. The circulation of air is by rotary fans driven from a gas-engine. A point upon which Mr. Key strongly insists is a screen down which water ...

1891-09-24T23:59:59.000Z

495

Effects of Tillage Practices on Water Consumption, Water Use Efficiency and Grain Yield in Wheat Field  

Science Journals Connector (OSTI)

Abstract Water shortage is a serious issue threatening the sustainable development of agriculture in the North China Plain, with the winter wheat (Triticum aestivum L.) as its largest water-consuming crop. The effects of tillage practices on the water consumption and water use efficiency (WUE) of wheat under high-yield conditions using supplemental irrigation based on testing soil moisture dynamic change were examined in this study. This experiment was conducted from 2007 to 2010, with five tillage practice treatments, namely, strip rotary tillage (SR), strip rotary tillage after subsoiling (SRS), rotary tillage (R), rotary tillage after subsoiling (RS), and plowing tillage (P). The results showed that in the SRS and RS treatments the total water and soil water consumptions were 11.81, 25.18% and 12.16, 14.75% higher than those in SR and R treatments, respectively. The lowest ratio of irrigation consumption to total water consumption in the SRS treatment was 18.53 and 21.88% for the 2008–2009 and 2009–2010 growing seasons, respectively. However, the highest percentage of water consumption was found in the SRS treatment from anthesis to maturity. No significant difference was found between the WUE of the flag leaf at the later filling stage in the SRS and RS treatments, but the flag leaf WUE at these stages were higher than those of other treatments. The SRS and RS treatments exhibited the highest grain yield (9573.76 and 9507.49 kg ha?1 for 3-yr average) with no significant difference between the two treatments, followed by P, R and SR treatments. But the SRS treatment had the highest WUE. Thus, the 1-yr subsoiling tillage, plus 2 yr of strip rotary planting operation may be an efficient measure to increase wheat yield and WUE.

Cheng-yan ZHENG; Zhen-wen YU; Yu SHI; Shi-ming CUI; Dong WANG; Yong-li ZHANG; Jun-ye ZHAO

2014-01-01T23:59:59.000Z

496

Engendering Vice: The Exemplarity of the Old French Fabliaux  

E-Print Network [OSTI]

Through close examination of thirteen representative fabliaux (L'anel qui faisoit les vis grans et roides, Connebert, La dame escoillee, Le foteor, Le moigne, Les perdris, Le pescheor de Pont seur Saine, Richeut, Les quatre ...

Horton, Ingrid Diane

2008-01-25T23:59:59.000Z

497

Studies of Platinum Polyynyl Complexes: Elaboration of Novel "Click" Cycloadducts and Fluorous and Polygon Based Platinum Polyyndiyl Systems  

E-Print Network [OSTI]

',4',6'-trihydroxyacetophenone monohydrate THF tetrahydrofuran THT tetrahydrothiophene TLC thin layer chromatography TMEDA tetramethylethylenediamine tol tolyl UV ultraviolet V volume vis visible vs very strong v/v volume/volume w weak 1 CHAPTER I...

Clough, Melissa Catherine 1985-

2012-11-13T23:59:59.000Z

498

Goulden Equipment and Facilities Lab: 1400 ft2  

E-Print Network [OSTI]

(Sorval RC 5C, etc). Instruments for in-situ remote sensing: (2) FLIR thermal cameras, (2) JAI VIS fluorescence, (1) Ocular Robotics scanning LIDAR, misc pan-tilt mounts (FLIR D100 and D48), computers, software

Kimball, Sarah

499

SSAP Annual_13may2013.indb  

National Nuclear Security Administration (NNSA)

insulated double PWA sources in cages showed well-synchronized implosions and x-ray bursts. A numerical simulation capability using VisRaD (from PRISM company) code established...

500

Cyanide Assay: Statistical Comparison of a New Gas Chromatographic Calibration Method versus the Classical Spectrophotometric Method  

Science Journals Connector (OSTI)

......spectrophotometric method (VIS) is linear from...Figure1. Chromatogramof hydrogen cyanide(HCN). o...HCY-a~5 Scheme1. Hydrogen cyanide production from ethyl thiocyano...coefficientfor both methods exceeded0.99, which......

Z.L. Cardeal; J.P. Gallet; A. Astier; D. Pradeau

1995-01-01T23:59:59.000Z