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Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Switchyards  

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

Within the laser beam enclosures are two stages of spatial filters that condition the beams after amplification. As NIF's laser beams are propagated four times through the main...

2

Record of Decision for the Interconnection of the Sutter Power Project With the Western Area Power Administration's Keswick-Elverta/Olinda-Elverta 230-Kilovolt Double-Circuit Transmission Line, June 15, 1999  

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

41 41 Federal Register / Vol. 64, No. 114 / Tuesday, June 15, 1999 / Notices DEPARTMENT OF ENERGY Western Area Power Administration Record of Decision for the Interconnection of the Sutter Power Project With the Western Area Power Administration's Keswick-Elverta/ Olinda-Elverta 230-Kilovolt Double- Circuit Transmission Line AGENCY: Western Area Power Administration, DOE. ACTION: Record of decision. SUMMARY: The Western Area Power Administration (Western) prepared this Record of Decision in response to a request submitted to Western for a direct interconnection of Calpine Corporation's (Calpine) proposed Sutter Power Project (SPP) with Western's electric transmission system. In response to this request, Western completed an Interconnection Feasibility Study that determined that

3

Recovery Act Project Clears Portsmouth Switchyard, Benefits Community  

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

Project Clears Portsmouth Switchyard, Benefits Project Clears Portsmouth Switchyard, Benefits Community through Recycling Recovery Act Project Clears Portsmouth Switchyard, Benefits Community through Recycling American Recovery and Reinvestment Act workers recently completed the demolition of structures in an electrical switchyard used to help power the Portsmouth Site's uranium enrichment processes for defense and commercial uses for nearly five decades. In the $28 million Recovery Act project completed safely and on schedule, workers demolished 160 towers as tall as 120 feet that were used to operate the X-533 Electrical Switchyard. Recovery Act Project Clears Portsmouth Switchyard, Benefits Community through Recycling More Documents & Publications Recovery Act Exceeds Major Cleanup Milestone, DOE Complex Now 74 Percent

4

LANSCE Wire Scanner System Prototype: Switchyard Test  

SciTech Connect

On November 19, 2011, the beam diagnostics team of Los Alamos National Laboratory's LANSCE accelerator facility conducted a test of a prototype wire scanner system for future deployment within the accelerator's switchyard area. The primary focus of this test was to demonstrate the wire scanner control system's ability to extend its functionality beyond acquiring lower energy linac beam profile measurements to acquiring data in the switchyard. This study summarizes the features and performance characteristics of the electronic and mechanical implementation of this system with details focusing on the test results.

Sedillo, James D [Los Alamos National Laboratory

2012-04-11T23:59:59.000Z

5

Recovery Act Project Clears Portsmouth Switchyard, Benefits Community  

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

Recovery Act Project Clears Portsmouth Switchyard, Benefits Recovery Act Project Clears Portsmouth Switchyard, Benefits Community through Recycling Recovery Act Project Clears Portsmouth Switchyard, Benefits Community through Recycling American Recovery and Reinvestment Act workers recently completed the demolition of structures in an electrical switchyard used to help power the Portsmouth Site's uranium enrichment processes for defense and commercial uses for nearly five decades. In the $28 million Recovery Act project completed safely and on schedule, workers demolished 160 towers as tall as 120 feet that were used to operate the X-533 Electrical Switchyard. Recovery Act Project Clears Portsmouth Switchyard, Benefits Community through Recycling More Documents & Publications Microsoft Word - PSRP Updates 6-25-10_v2

6

CX-003193: Categorical Exclusion Determination | Department of Energy  

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

93: Categorical Exclusion Determination 93: Categorical Exclusion Determination CX-003193: Categorical Exclusion Determination Davis Dam 230-Kilovolt Switchyards Stage 06 Upgrade (Double Breaker Double Bus) in Mohave County, Arizona CX(s) Applied: B4.11 Date: 06/30/2010 Location(s): Mohave County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region Western Area Power Administration plans to upgrade the existing Upper and Lower Davis Dam 230-kilovolt switchyards in order to provide additional operational flexibility and reliability to the bulk electric system. Construction activities will take place within the existing switchyard fences in areas previously graded and covered with gravel. Existing gravel access roads will be used to reach the project area. DOCUMENT(S) AVAILABLE FOR DOWNLOAD

7

CX-003193: Categorical Exclusion Determination | Department of Energy  

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

3193: Categorical Exclusion Determination 3193: Categorical Exclusion Determination CX-003193: Categorical Exclusion Determination Davis Dam 230-Kilovolt Switchyards Stage 06 Upgrade (Double Breaker Double Bus) in Mohave County, Arizona CX(s) Applied: B4.11 Date: 06/30/2010 Location(s): Mohave County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region Western Area Power Administration plans to upgrade the existing Upper and Lower Davis Dam 230-kilovolt switchyards in order to provide additional operational flexibility and reliability to the bulk electric system. Construction activities will take place within the existing switchyard fences in areas previously graded and covered with gravel. Existing gravel access roads will be used to reach the project area. DOCUMENT(S) AVAILABLE FOR DOWNLOAD

8

Recovery Act Project Clears Portsmouth Switchyard, Benefits Community through Recycling  

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

Project Clears Portsmouth Project Clears Portsmouth Switchyard, Benefits Community through Recycling PIKETON, Ohio - American Recovery and Reinvestment Act workers recently completed the demolition of structures in an electrical switchyard used to help power the Portsmouth Site's uranium enrichment processes for defense and commercial uses for nearly five decades. In the $28 million Recovery Act project completed safely and on schedule, workers demolished 160 towers as tall as 120 feet that were used to operate the X-533 Electrical Switchyard. The 20-acre complex was one of two high-voltage switchyards that together provided up to 2,200 megawatts of power - enough to light up New York City at the time the Portsmouth Gaseous Diffu- sion Plant was constructed in the 1950s. The remaining switch-

9

Switchyards Rebuild and Upgrade Project in Mohave County, Arizona  

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

. . Categorical Exclusion for the Demolition of a Service Building at Davis Dam Lower 230-kV Switchyard as part of the Overall Switchyards Rebuild and Upgrade Project in Mohave County, Arizona RECORD OF CATEGORICAL EXCLUSION DETERMINATION A. Proposed Action: Western Area Power Administration (Western) plans to demolish a service building located in the Lower 230-kV Switchyard at Davis Dam, because it no longer meets our needs and we do not anticipate finding a use for it in the future. The building is currently vacant and has been for years. We plan to begin the work on April 1 ,2011 and complete it by December 31,2011. The attached map shows the project area location. Aerial photographs show that much of this area is developed. Western owns the land. The legal description is

10

Switchyard in the Main Injector era conceptual design report  

SciTech Connect

This report presents elements of a design of the Switchyard and of the present fixed target beamlines in the era of the Main Injector (MI). It presumes that 800 GeV Tevatron beam will be transported to this area in the MI era, and permits it to share cycles with 120 GeV Main Injector beam if this option is desired. Geographically, the region discussed extends from the vicinity of AO to downstream points beyond which beam properties will be determined by the requirements of specific experiments. New neutrino lines not utilizing the present Switchyard (NuMI, BooNE) are not addressed. Similarly Main Injector beams upstream of AO are described fully in MI documentation and are unaffected by what is presented here. The timing both of the preparation of this report and of its recommendations for proceeding with construction relate to a desire to do required work in Transfer Hall and Enclosure B during the Main Injector construction shutdown (September 1997 - September 1998). As these areas are off-limits during any Tevatron operation, it is necessary for the fixed target program that work be completed here during this extended down period. The design presented here enables the operation of all beamlines in the manner specified in the current Laboratory plans for future fixed- target physics.

Brown, C.; Kobilarcik, T.; Lucas, P.; Malensek, A.; Murphy, C.T.; Yang, M.-J.

1997-08-01T23:59:59.000Z

11

EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission  

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

EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission Line Rebuild Project, Grand County, CO EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission Line Rebuild Project, Grand County, CO Summary Western Area Power Administration prepared an EIS, with the U.S. Forest Service, Bureau of Land Management, and Grand County (Colorado) as cooperating agencies, to evaluate the potential environmental impacts of rebuilding a 12-mile, 69-kV electric transmission line in Grand County. The proposed project would rebuild the single-circuit line as a double-circuit transmission line and add a second power transformer. Western identified potentially significant impacts while preparing an EA for this proposal (DOE/EA-1520) and prepared an EIS instead of completing

12

EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission  

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

00: Granby Pumping Plant Switchyard-Windy Gap Substation 00: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission Line Rebuild Project, Grand County, CO EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission Line Rebuild Project, Grand County, CO Summary Western Area Power Administration prepared an EIS, with the U.S. Forest Service, Bureau of Land Management, and Grand County (Colorado) as cooperating agencies, to evaluate the potential environmental impacts of rebuilding a 12-mile, 69-kV electric transmission line in Grand County. The proposed project would rebuild the single-circuit line as a double-circuit transmission line and add a second power transformer. Western identified potentially significant impacts while preparing an EA for this proposal (DOE/EA-1520) and prepared an EIS instead of completing

13

Granby Pumping Plant Switchyard - Windy Gap Substation Transmission Line Rebuild, Grand County, Colorado: Final Environmental Impact Statement Appendices  

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

PUMPING PLANT SWITCHYARD - WINDY GAP PUMPING PLANT SWITCHYARD - WINDY GAP SUBSTATION TRANSMISSION LINE REBUILD, GRAND COUNTY, COLORADO DOE/EIS-0400 Final Environmental Impact Statement Appendices Grand County, Colorado June 2013 Appendix A EIS Scoping Report GRANBY PUMPING PLANT - WINDY GAP TRANSMISSION LINE REBUILD PROJECT ENVIRONMENTAL IMPACT STATEMENT SCOPING SUMMARY REPORT December 4, 2007

14

Granby Pumping Plant Switchyard - Windy Gap Substation Transmission Line Rebuild, Grand County, Colorado: Final Environmental Impact Statement Executive Summary  

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

PUMPING PLANT SWITCHYARD - WINDY GAP PUMPING PLANT SWITCHYARD - WINDY GAP SUBSTATION TRANSMISSION LINE REBUILD, GRAND COUNTY, COLORADO DOE/EIS-0400 Final Environmental Impact Statement Executive Summary Grand County, Colorado June 2013 Granby Pumping Plant-Windy Gap Substation Transmission Line Rebuild Project FEIS Executive Summary ES-1 EXECUTIVE SUMMARY Introduction Western Area Power Administration (Western), a power marketing administration within the U.S. Department of Energy (DOE), is proposing to rebuild and upgrade the Granby Pumping Plant Switchyard-Windy Gap Substation transmission line in Grand County, Colorado (Grand County). This Environmental Impact Statement (EIS) analyzes the impacts associated with the proposal to remove approximately 13.6 miles of 69-kilovolt (kV) transmission line, construct approximately

15

CX-010544: Categorical Exclusion Determination  

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

Glen Canyon Switchyard - 230 Kilovolt Wavetrap Removal - TZ9A2 on the Navajo Line CX(s) Applied: B4.11 Date: 06/21/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

16

Development of ion injection into the BNL test electron beam ion source using a prototype low energy beam transfer switchyard and a hollow  

E-Print Network (OSTI)

Development of ion injection into the BNL test electron beam ion source using a prototype low-to-pulse basis, the BNL RHIC electron beam ion source EBIS will use injection of primary "seed" ions from energy beam transfer switchyard and a hollow cathode ion source ,,abstract...a...,b... E. N. Beebe, J. G

17

CX-007137: Categorical Exclusion Determination | Department of Energy  

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

37: Categorical Exclusion Determination 37: Categorical Exclusion Determination CX-007137: Categorical Exclusion Determination Davis Dam Lower 230-kilovolt Substation Service Building Demolition CX(s) Applied: B1.23 Date: 03/03/2011 Location(s): Mohave County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region Western Area Power Administration (Western) plans to demolish a service building located in the Lower 230-kilovolt Switchyard at Davis Dam, because it no longer meets our needs and we do not anticipate finding a use for it in the future. The building is currently vacant and has been for years. We plan to begin the work on April 1, 2011 and complete it by December 31, 2011. CX-007137.pdf More Documents & Publications EA-1595: Mitigation Action Plan EA-1595: Final Environmental Assessment

18

CX-007989: Categorical Exclusion Determination | Department of...  

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

proposes to interconnect Grant's new 230-kilovolt transmission line into bay 7 within the BPA owned 230-kilovolt Columbia Substation. Microsoft Word - GrantPUD-CX.docx More...

19

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

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

2, 2010 2, 2010 CX-003624: Categorical Exclusion Determination Replacement of Twenty 22-L Structures on the Satsop-Aberdeen Number 2 230-kilovolt Transmission Line CX(s) Applied: B1.3 Date: 08/12/2010 Location(s): Gray's Harbor County, Washington Office(s): Bonneville Power Administration August 12, 2010 CX-004896: Categorical Exclusion Determination Davis Dam Switchyards (Erosion Control) CX(s) Applied: B1.3 Date: 08/12/2010 Location(s): Mohave County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region August 12, 2010 CX-003417: Categorical Exclusion Determination Energy Efficiency Projects CX(s) Applied: B5.1 Date: 08/12/2010 Location(s): Plover, Wisconsin Office(s): Energy Efficiency and Renewable Energy, Golden Field Office August 12, 2010 CX-003405: Categorical Exclusion Determination

20

Page not found | Department of Energy  

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

61 - 6170 of 28,905 results. 61 - 6170 of 28,905 results. Download CX-010544: Categorical Exclusion Determination Glen Canyon Switchyard - 230 Kilovolt Wavetrap Removal - TZ9A2 on the Navajo Line CX(s) Applied: B4.11 Date: 06/21/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region http://energy.gov/nepa/downloads/cx-010544-categorical-exclusion-determination Download CX-010546: Categorical Exclusion Determination Liberty Substation Transformer Replacement Project, Maricopa County, Arizona CX(s) Applied: B4.11 Date: 06/06/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region http://energy.gov/nepa/downloads/cx-010546-categorical-exclusion-determination Download CX-010552: Categorical Exclusion Determination

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Microsoft Word - CX-Coulee_Westside_Relay_Replacement_130205.docx  

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

6, 2013 6, 2013 REPLY TO ATTN OF: KEC-4 SUBJECT: Environmental Clearance Memorandum Roy Slocum Project Manager - TEP-CSB-2 Proposed Action: Coulee-Westside Transfer Trip Replacement Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.7 Electronic Equipment Locations: Grand Coulee, WA and Spokane, WA Proposed by: Bonneville Power Administration (BPA) Description of the Proposed Action: The BPA has entered into a three-party agreement with Bureau of Reclamation (Bureau) and Avista Corporation (Avista) to coordinate the replacement of relays and removal of transfer trip equipment at Avista's Westside Substation and the Bureau's Grand Coulee Switchyard on the Grand Coulee-Westside 230-kilovolt (kV) Transmission Line. Under this agreement, BPA proposes to:

22

CX-004896: Categorical Exclusion Determination | Department of Energy  

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

4896: Categorical Exclusion Determination 4896: Categorical Exclusion Determination CX-004896: Categorical Exclusion Determination Davis Dam Switchyards (Erosion Control) CX(s) Applied: B1.3 Date: 08/12/2010 Location(s): Mohave County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region Western Area Power Administration proposes to conduct erosion control between the new Davis Dam 69-kilovolts and upper 230-kilovolts wwitchyards. This will consist of building two 3 feet by 3 feet by 12 feet gabions, which are rock-filled with 4-8 inch riprap stocked one on top of the other on the north ends of the wwitchyards. The 6 feet by 6 feet by 6 feet washed out area shall be filled and compacted with native soil and a high survivability filter fabric spread out beneath the gabions.

23

Page not found | Department of Energy  

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

61 - 24270 of 31,917 results. 61 - 24270 of 31,917 results. Download CX-003194: Categorical Exclusion Determination Installation of a Mid-Span Interset Structure between Structures 141/1 and 141/2 on the Existing Davis Dam-Prescott 230-Kilovolt Transmission Line in Yavapai County, Arizona CX(s) Applied: B4.13 Date: 06/10/2010 Location(s): Yavapai County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region http://energy.gov/nepa/downloads/cx-003194-categorical-exclusion-determination Download CX-004896: Categorical Exclusion Determination Davis Dam Switchyards (Erosion Control) CX(s) Applied: B1.3 Date: 08/12/2010 Location(s): Mohave County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region http://energy.gov/nepa/downloads/cx-004896-categorical-exclusion-determination

24

Whistling Ridge  

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

230-kilovolt transmission line approximately five miles west of BPA's Underwood Substation. BPA completed a joint environmental impact statement in August 2011 with the...

25

CX-007993: Categorical Exclusion Determination | Department of...  

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

Determination CX-007993: Categorical Exclusion Determination Hatwai 230-Kilovolt Substation Breaker Replacement CX(s) Applied: B4.6 Date: 02092012 Location(s): Idaho...

26

EIS-0433-S1: EPA Notice of Availability of Final Supplemental...  

Energy Savers (EERE)

to the proposal, including construction and operation of a portion of a 230-kilovolt transmission line and construction of a new substation. The review period ends: 031014....

27

CX-011648: Categorical Exclusion Determination | Department of...  

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

Determination CX-011648: Categorical Exclusion Determination Davis-Parker 230 Kilovolt Transmission Line- Marker Ball(s) Replacement CX(s) Applied: B1.3 Date: 12172013...

28

Stage Management & Technology  

E-Print Network (OSTI)

Stage managers provide centralized communication, organization, and task coordination for all individuals in the production team. This study explores the advantages and disadvantages of different and new forms of technology implemented into various...

O'Brien, Madison D

2013-02-04T23:59:59.000Z

29

Staged fluidized bed  

DOE Patents (OSTI)

The invention relates to oil shale retorting and more particularly to staged fluidized bed oil shale retorting. Method and apparatus are disclosed for narrowing the distribution of residence times of any size particle and equalizing the residence times of large and small particles in fluidized beds. Particles are moved up one fluidized column and down a second fluidized column with the relative heights selected to equalize residence times of large and small particles. Additional pairs of columns are staged to narrow the distribution of residence times and provide complete processing of the material.

Mallon, R.G.

1983-05-13T23:59:59.000Z

30

System Design Stage  

Directives, Delegations, and Requirements

This chapter addresses translating the user-oriented functional design specifications into a set of technical, computer-oriented system design specifications; and designing the data structure and processes to the level of detail necessary to plan and execute the Programming and Installation Stages.

1997-05-21T23:59:59.000Z

31

Staged membrane oxidation reactor system  

DOE Patents (OSTI)

Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region; (b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages and adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair; and (c) one or more reactant interstage feed gas lines, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage receiving interstage reactant gas.

Repasky, John Michael; Carolan, Michael Francis; Stein, VanEric Edward; Chen, Christopher Ming-Poh

2012-09-11T23:59:59.000Z

32

Staged membrane oxidation reactor system  

DOE Patents (OSTI)

Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region; (b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages and adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair; and (c) one or more reactant interstage feed gas lines, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage receiving interstage reactant gas.

Repasky, John Michael; Carolan, Michael Francis; Stein, VanEric Edward; Chen, Christopher Ming-Poh

2014-05-20T23:59:59.000Z

33

Staged membrane oxidation reactor system  

DOE Patents (OSTI)

Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region; (b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages and adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair; and (c) one or more reactant interstage feed gas lines, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage receiving interstage reactant gas.

Repasky, John Michael; Carolan, Michael Francis; Stein, VanEric Edward; Chen, Christopher Ming-Poh

2013-04-16T23:59:59.000Z

34

Multi-stage Cascaded Stirling Refrigerator  

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

Multi-stage Cascaded Stirling Refrigerator Multi-stage Cascaded Stirling Refrigerator Los Alamos National Laboratory (LANL) researchers have developed a multi-stage refrigerator,...

35

CX-008378: Categorical Exclusion Determination | Department of Energy  

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

8378: Categorical Exclusion Determination 8378: Categorical Exclusion Determination CX-008378: Categorical Exclusion Determination Archer 230 Kilovolt Bay Addition for New Point of Delivery - Stage 07 CX(s) Applied: B4.6 Date: 03/08/2012 Location(s): CX: none Offices(s): Western Area Power Administration-Rocky Mountain Region Tri-State Generation and Transmission Association, Inc. (Tri-State), has requested an interconnection to Western Area Power Administration's (Western) Archer 230/115-Kilovolt (kV) Substation (Archer Substation). The Archer Substation is a Designated Point of Delivery from Western to Tri-State as set forth in Exhibit A of Contract No. 87-LAO-172 (TS-89-0005), Finn Electric Service (Contract). CX-008378.pdf More Documents & Publications CX-010891: Categorical Exclusion Determination

36

Viscosity and dissipation - early stages  

E-Print Network (OSTI)

A very early start up time of the hydrodynamic evolution is needed in order to reproduce observations from relativistic heavy-ion collisions experiments. At such early times the systems is still not locally equilibrated. Another source of deviations from local equilibrium is the viscosity of the fluid. We study these effects at very early times to obtain a dynamical prescription for the transition from an early 2-dimensional expansion to a nearly equilibrated 3-dimensional expansion at latter stages. The role of viscosity at latter stages of the evolution is also illustrated.

P. Bozek

2009-01-15T23:59:59.000Z

37

Operation of staged membrane oxidation reactor systems  

SciTech Connect

A method of operating a multi-stage ion transport membrane oxidation system. The method comprises providing a multi-stage ion transport membrane oxidation system with at least a first membrane oxidation stage and a second membrane oxidation stage, operating the ion transport membrane oxidation system at operating conditions including a characteristic temperature of the first membrane oxidation stage and a characteristic temperature of the second membrane oxidation stage; and controlling the production capacity and/or the product quality by changing the characteristic temperature of the first membrane oxidation stage and/or changing the characteristic temperature of the second membrane oxidation stage.

Repasky, John Michael

2012-10-16T23:59:59.000Z

38

Multi-stage flash degaser  

DOE Patents (OSTI)

A multi-stage flash degaser is incorporated in an energy conversion system having a direct-contact, binary-fluid heat exchanger to remove essentially all of the noncondensable gases from geothermal brine ahead of the direct-contact binary-fluid heat exchanger in order that the heat exchanger and a turbine and condenser of the system can operate at optimal efficiency.

Rapier, P.M.

1980-06-26T23:59:59.000Z

39

Multi-stage flash degaser  

DOE Patents (OSTI)

A multi-stage flash degaser (18) is incorporated in an energy conversion system (10) having a direct-contact, binary-fluid heat exchanger to remove essentially all of the noncondensable gases from geothermal brine ahead of the direct-contact binary-fluid heat exchanger (22) in order that the heat exchanger (22) and a turbine (48) and condenser (32) of the system (10) can operate at optimal efficiency.

Rapier, Pascal M. (Richmond, CA)

1982-01-01T23:59:59.000Z

40

CX-012076: Categorical Exclusion Determination | Department of...  

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

230-Kilovolt Reconductoring Project CX(s) Applied: B1.3 Date: 04252014 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region In 2013,...

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

EIS-0414: EPA Notice of Availability of the Draft Environmental Impact Statement  

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

Energia Sierra Juarez U.S. Transmission Line Project, Construction, Operation, Maintenance, and Connection of either 230-kilovolt or a 500-kilovolt Electric Transmission Line Crossing U.S.-Mexico Border

42

Microsoft Word - CX_HatRockEquipmentDisposition.docx  

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

station taps PacifiCorp's McNary-Wallula 230-kilovolt (kV) line to serve BPA's Hat Rock Substation. PacifiCorp is in the process of rebuilding the switching station, including...

43

Microsoft Word - CFAC 7-Year PSA.doc  

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

2.5 "CFAC Plant" means the CFAC aluminum smelting facilities served from BPA's Conkelly Substation, where the 13.8 or 230 kilovolt facilities of BPA and CFAC are connected. 2.6...

44

CX-012194: Categorical Exclusion Determination  

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

Santiam Substation 230 Kilovolt Shunt Reactor Replacement CX(s) Applied: B4.11 Date: 05/05/2014 Location(s): Oregon Offices(s): Bonneville Power Administration

45

EIS-0323-S1: Draft Supplement Environmental Impact Statement...  

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

been proposed of approximately 31 to 38 miles of new, double-circuit, 230-kilovolt (kV) transmission line between Western's O'Banion Substation and the area just south of SMUD's...

46

CX-011723: Categorical Exclusion Determination  

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

Happy Jack 230 Kilovolt Substation Fiber Optic Installation in Laramie County, Wyoming CX(s) Applied: B4.7 Date: 12/31/2013 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

47

CX-010891: Categorical Exclusion Determination  

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

Archer-Stegall 230-Kilovolt Fiber Optic Ground Wire Addition CX(s) Applied: B4.7 Date: 08/20/2013 Location(s): Nebraska, Nebraska Offices(s): Western Area Power Administration-Rocky Mountain Region

48

CX-011209: Categorical Exclusion Determination  

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

Archer-North Park 230-Kilovolt Transmission Line Danger Tree Management CX(s) Applied: B1.3 Date: 09/10/2013 Location(s): Colorado, Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

49

CX-011204: Categorical Exclusion Determination  

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

Hayden-North Park 230-Kilovolt Transmission Lane Danger Tree Management CX(s) Applied: B1.3 Date: 08/30/2013 Location(s): Colorado, Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

50

CX-011208: Categorical Exclusion Determination  

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

Danger Tree Management on Malta-Mount Elbert 230-Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 09/09/2013 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

51

CX-008685: Categorical Exclusion Determination  

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

Big Eddy – Troutdale No. 1 230 Kilovolt Transmission Line Upgrade CX(s) Applied: B4.13 Date: 07/11/2012 Location(s): Oregon, Oregon, Oregon Offices(s): Bonneville Power Administration

52

CX-010107: Categorical Exclusion Determination | Department of...  

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

Determination Curecanti-Morrow Point 230 Kilovolt (kV) and 12.47-kV Transmission Lines Access Road Maintenance CX(s) Applied: B1.3 Date: 04122013 Location(s): Colorado...

53

EIS-0106: Great Falls-Conrad Transmission Line Project, Montana  

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

The Western Area Power Administration prepared this EIS to evaluate the environmental impacts of the construction and operation of a 230-kilovolt transmission line from Great Falls, Montana, to Conrad, Montana.

54

CX-011205: Categorical Exclusion Determination  

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

Lost Canyon-Shiprock 230-Kilovolt Transmission Line Road Maintenance CX(s) Applied: B1.3 Date: 08/30/2013 Location(s): New Mexico Offices(s): Western Area Power Administration-Rocky Mountain Region

55

CX-010886: Categorical Exclusion Determination  

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

Curecanti-Lost Canyon 230-Kilovolt Emergency Repairs of Downed Conductor CX(s) Applied: B1.3 Date: 08/06/2013 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

56

CX-011228: Categorical Exclusion Determination | Department of...  

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

CX-011228: Categorical Exclusion Determination Structure 112-4 LIBPAD1 230-kilovolt Transmission Line "Live Line" Maintenance Training CX(s) Applied: B1.2 Date: 10252013...

57

EIS-0496: San Luis Transmission Project, Alameda, Merced, San...  

Energy Savers (EERE)

proposes at a minimum to construct, own, operate, and maintain a new 230-kilovolt (kV) transmission line about 62 miles in length between Western's Tracy Substation and...

58

Flow Efficiency and Excitation in Turbine Stages  

Science Journals Connector (OSTI)

The sources of non-steady forces in a turbine stage are reviewed. Procedures for line vortex stage flow analysis and for actuator disk analyses are described, together with details of certain important analyti...

Neville F. Rieger

1990-01-01T23:59:59.000Z

59

Second Stage Turbine Bucket Airfoil.  

DOE Patents (OSTI)

The second-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinate values defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.

Xu, Liming (Simpsonville, SC); Ahmadi, Majid (Simpsonville, SC); Humanchuk, David John (Simpsonville, SC); Moretto, Nicholas (Clifton Park, NY); Delehanty, Richard Edward (Maineville, OH)

2003-05-06T23:59:59.000Z

60

Staged direct injection diesel engine  

DOE Patents (OSTI)

A diesel engine having staged injection for using lower cetane number fuels than No. 2 diesel fuel. The engine includes a main fuel injector and a pilot fuel injector. Pilot and main fuel may be the same fuel. The pilot injector injects from five to fifteen percent of the total fuel at timings from 20.degree. to 180.degree. BTDC depending upon the quantity of pilot fuel injected, the fuel cetane number and speed and load. The pilot fuel injector is directed toward the centerline of the diesel cylinder and at an angle toward the top of the piston, avoiding the walls of the cylinder. Stratification of the early injected pilot fuel is needed to reduce the fuel-air mixing rate, prevent loss of pilot fuel to quench zones, and keep the fuel-air mixture from becoming too fuel lean to become effective. In one embodiment, the pilot fuel injector includes a single hole for injection of the fuel and is directed at approximately 48.degree. below the head of the cylinder.

Baker, Quentin A. (San Antonio, TX)

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Integrated two-stage coal liquefaction process  

DOE Patents (OSTI)

This invention relates to an improved two-stage process for the production of liquid carbonaceous fuels and solvents from carbonaceous solid fuels, especially coal.

Bronfenbrenner, James C. (Allentown, PA); Skinner, Ronald W. (Allentown, PA); Znaimer, Samuel (Vancouver, CA)

1985-01-01T23:59:59.000Z

62

STATE OF CALIFORNIA INSULATION STAGE CHECKLIST  

E-Print Network (OSTI)

STATE OF CALIFORNIA INSULATION STAGE CHECKLIST CEC-CF-6R-ENV-22 (Revised 05/12) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-22 Quality Insulation Installation (QII) - Insulation Stage be insulated in a manner that resists thermal bridging of the assembly separating conditioned from

63

Thermonuclear Fusion in a Staged Pinch  

Science Journals Connector (OSTI)

Staged pinch implosions provide means to couple energy to a small-diameter fibre on an extremely fast time scale, circumventing the limitations of conventional pinches. In this scheme the generator current initia...

F. J. Wessel; Norman Rostoker; H. U. Rahman…

1997-01-01T23:59:59.000Z

64

Water rites : a city stage for Boston  

E-Print Network (OSTI)

This thesis focuses on the design of a public theatre for the entire city of Boston, a "city stage." The intention is to explore through design the boundaries of an architectural setting for large scale performance art; ...

Mansfield, Timothy Denton

1990-01-01T23:59:59.000Z

65

One-dimensional staged self-assembly  

E-Print Network (OSTI)

We introduce the problem of staged self-assembly of one-dimensional nanostructures, which becomes interesting when the elements are labeled (e.g., representing functional units that must be placed at specific locations). ...

Demaine, Erik D.

66

Biologically-inspired robots for stage performance  

E-Print Network (OSTI)

Stage performances present many challenges and opportunities in the field of robotics. Onstage robots not only have to function flawlessly, they must interact convincingly with their human counterparts and adhere to a rigid ...

Dong, Wei, S.M. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

67

Coordinated X-Y stage apparatus  

DOE Patents (OSTI)

An apparatus based on precision X-Y stages that are stacked. Attached to arms projecting from each X-Y stage are a set of two axis gimbals. Attached to the gimbals is a rod, which provides motion along the axis of the rod and rotation around its axis. A dual-planar apparatus that provides six degrees of freedom of motion precise to within microns of motion.

Morimoto, Alan K. (Albuquerque, NM); Kozlowski, David M. (Albuquerque, NM); Charles, Steven T. (Germantown, TN); Spalding, James A. (Springfield, KY)

2000-01-01T23:59:59.000Z

68

ENVIRONMENTAL ASSESSMENT FOR HAZARDOUS WASTE STAGING FACILITY  

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

HAZARDOUS WASTE STAGING FACILITY HAZARDOUS WASTE STAGING FACILITY Project 39GF71024-GPDI21000000 . PANTEX PLANT AMARILLO, TEXAS DOE/EA-0688 JUNE 1993 MASTER DiSTRiBUTiON OF THIS DOCUMENT IS UNLIMITEI) ffrl TABLE OF CONTENTS Section Page 1.0 Need for Action 1 2.0 Description of Proposed Facility Action 3.0 Location of the Action 8 4.0 Alternatives to Proposed Action 9 4.1 No Action 9 4.2 Redesign and Modify Existing staging Facilities 9 4.3 Use Other Existing Space at Pantex Plant 9 4.4 Use Temporary Structures 9 4.5 Stage Waste at Other Sites 10 4.6 Stage Wastes Separately 10 5.0 Environmental Impacts of Proposed Action 10 5.1 Archeology 10 5.2 FloodplainlW etlands 10 5.3 Threatened and Endangered Species 10 5.4 Surrounding La,nd Use 11 5.5 Construction 11 5.6 Air Emissions 11

69

Staged mold for encapsulating hazardous wastes  

DOE Patents (OSTI)

A staged mold for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides. In the third stage, the mold with the jacketed agglomerate is inverted, the first mold base is removed exposing the former bottom of the agglomerate, powdered thermoplastic is poured over the former bottom, the first mold base is replaced to compress the thermoplastic, heat is applied to melt the new thermoplastic and the top part of the jacket on the sides, the plastic is cooled jacketing the bottom and fusing with the jacketing on the sides to complete the seamless encapsulation of the agglomerate.

Unger, Samuel L. (Los Angeles, CA); Telles, Rodney W. (Alhambra, CA); Lubowitz, Hyman R. (Rolling Hills Estates, CA)

1990-01-01T23:59:59.000Z

70

STAGING OF FUEL CELLS - PHASE II  

SciTech Connect

TIAX has executed a laboratory-based development program aiming at the improvement of stationary fuel cell systems. The two-year long development program resulted in an improved understanding of staged fuel cells and inorganic proton conductors through evaluation of results from a number of laboratory tasks: (1) Development of a fuel cell modeling tool--Multi-scale model was developed, capable of analyzing the effects of materials and operating conditions; and this model allowed studying various ''what-if'' conditions for hypothetically staged fuel cells; (2) Study of new high temperature proton conductor--TIAX discovery of a new class of sulfonated inorganics capable of conducting protons when exposed to water; and study involved synthesis and conductivity measurements of novel compounds up to 140 C; (3) Electrochemical fuel cell measurements--the feasibility of staged fuel cells was tested in TIAX's fuel cell laboratories experimental design was based on results from modeling.

Per Onnerud; Suresh Sriramulu

2002-08-29T23:59:59.000Z

71

Residential Two-Stage Gas Furnaces - Do They Save Energy?  

E-Print Network (OSTI)

ASHRAE test procedure for several furnace efficiency levels (80%, 81%, 90%,ASHRAE Test Procedure 80% AFUE (Two-stage, BPM) 81% AFUE (Two-stage, BPM) 90%

Lekov, Alex; Franco, Victor; Lutz, James

2006-01-01T23:59:59.000Z

72

Staging laser plasma accelerators for increased beam energy  

E-Print Network (OSTI)

Staging Laser Plasma Accelerators for Increased Beam EnergyStaging laser plasma accelerators is an efficient way ofcompact laser-plasma accelerators to generate particle

Panasenko, Dmitriy

2010-01-01T23:59:59.000Z

73

Weidlinger-Navarro selected for waste staging facility design...  

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

Weidlinger-Navarro selected for waste staging facility design support Small firm selected for design support of new waste staging facility Weidlinger-Navarro will support the...

74

Fusion in a Staged Z-pinch  

E-Print Network (OSTI)

York (1978) Teller, E. : Fusion. Academic Press, New York (O R I G I N A L A RT I C L E Fusion in a Staged Z-pinch H.U.implosion the sim- ulated fusion-energy yield is 7.6 MJ,

Rahman, H. U.; Ney, P.; Rostoker, N.; Wessel, F. J.

2009-01-01T23:59:59.000Z

75

Mitochondrial modulation: reversible phosphorylation takes center stage?  

E-Print Network (OSTI)

.5 billion years, mitochondria have evolved from oxygen-scavenging bacterial symbionts into pri- mary controlMitochondrial modulation: reversible phosphorylation takes center stage? David J. Pagliarini1 and Center for Human Genetics Research, Massachusetts General Hospital, Boston, MA 02114, USA In the past 1

Pagliarini, David J.

76

Festival: Science on stage deadline approaches  

Science Journals Connector (OSTI)

Festival: Science on stage deadline approaches Conference: Welsh conference attracts teachers Data: New phase of CERN openlab tackles exascale IT challenges for science Meeting: German Physical Society holds its physics education spring meeting Conference: Association offers golden opportunity in Norway Competition: So what's the right answer then?

77

Two stage sorption of sulfur compounds  

DOE Patents (OSTI)

A two stage method for reducing the sulfur content of exhaust gases is disclosed. Alkali- or alkaline-earth-based sorbent is totally or partially vaporized and introduced into a sulfur-containing gas stream. The activated sorbent can be introduced in the reaction zone or the exhaust gases of a combustor or a gasifier. High efficiencies of sulfur removal can be achieved.

Moore, William E. (Manassas, VA)

1992-01-01T23:59:59.000Z

78

Multi-stage fuel cell system method and apparatus  

DOE Patents (OSTI)

A high efficiency, multi-stage fuel cell system method and apparatus is provided. The fuel cell system is comprised of multiple fuel cell stages, whereby the temperatures of the fuel and oxidant gas streams and the percentage of fuel consumed in each stage are controlled to optimize fuel cell system efficiency. The stages are connected in a serial, flow-through arrangement such that the oxidant gas and fuel gas flowing through an upstream stage is conducted directly into the next adjacent downstream stage. The fuel cell stages are further arranged such that unspent fuel and oxidant laden gases too hot to continue within an upstream stage because of material constraints are conducted into a subsequent downstream stage which comprises a similar cell configuration, however, which is constructed from materials having a higher heat tolerance and designed to meet higher thermal demands. In addition, fuel is underutilized in each stage, resulting in a higher overall fuel cell system efficiency.

George, Thomas J. (Morgantown, WV); Smith, William C. (Morgantown, WV)

2000-01-01T23:59:59.000Z

79

Two Stage Smooth Semi Parametric Quantile Regression  

E-Print Network (OSTI)

We propose a root n consistent estimator for ?0 when the qth conditional quantile of Y given X=x and Z=z takes the semi linear form g(x) + z??0 where g(.) is an unknown real valued function,?0 a finite dimensional parameter and (X,Z)a couple of explanatory variables.Importantly, our estimator attains,under homoscedasticity,the semi parametric efficiency bound.This estimation is conducted in two steps. First, a Robinson’s like demeaning of the original model is employed which provides a new quantile regression whose nuisance terms are estimated via a non parametric procedure.In the second stage, the quantile regression is conducted by smoothing the check function.We show that the previous estimator belongs to a class of estimators we propose to name ”two stage smooth semi parametric quantile”

J. M. Krief

2009-01-01T23:59:59.000Z

80

Second-stage turbine bucket airfoil  

DOE Patents (OSTI)

The second-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinate values defining the airfoil profile at each distance Z. The X and Y values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket. The second-stage wheel has sixty buckets.

Wang, John Zhiqiang (Greenville, SC); By, Robert Romany (Simpsonville, SC); Sims, Calvin L. (Mauldin, SC); Hyde, Susan Marie (Piedmont, SC)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

THE TWO STAGE CRYSTAL COLLIMATOR FOR RHIC.  

SciTech Connect

The use of a two stage crystal collimation system in the RHIC yellow ring is examined. The system includes a copper beam scraper and a bent silicon crystal. While scrapers were installed in both of the RHIC rings before the year 2000 run, the crystal is installed for the 2001 run in one ring only, forming a two stage collimation system there. We present simulations of the expected channeling through the bent silicon crystal for both protons and gold ions with various beam parameters. This gives a picture of the particle losses around the ring, and the expected channeling efficiency. These results are then used to optimize the beam parameters in the area of the crystal to obtain maximum channeling efficiency, minimize out-scattering in the secondary collimator, and reduce beam halo.

FLILLER, R.P. III; DREES, A.; GASSNER, D.; HAMMONS, L.; MCINTYRE, G.; TRBOJEVIC, D.; BIRYUKOV, V.; CHESNOKOV, Y.; TEREKHOV, V.

2001-06-18T23:59:59.000Z

82

Chapter 6 - Stage 3: Data Load  

Science Journals Connector (OSTI)

Summary This chapter discusses the Data Load stage of the Guerrilla Analytics workflow. Data Load involves getting data from a receipt location (generally the file system) and loading it into the Data Manipulation Environment (DME). In this chapter, you will learn about the various activities that take place at Data Load. You will learn about the pitfalls and risks in these activities. You will then learn a number of practice tips to mitigate those risks.

Enda Ridge

2015-01-01T23:59:59.000Z

83

Event: UK to host Science on Stage  

Science Journals Connector (OSTI)

Event: UK to host Science on Stage Travel: Gaining a more global perspective on physics Event: LIYSF asks students to 'cross scientific boundaries' Competition: Young Physicists' tournament is international affair Conference: Learning in a changing world of new technologies Event: Nordic physical societies meet in Lund Conference: Tenth ESERA conference to publish ebook Meeting: Rugby meeting brings teachers together Note: Remembering John L Lewis OBE

84

Relicensing: Adding an extra stage of consultation  

SciTech Connect

Recognizing the value of getting public feedback about its hydro facilities, Montana Power Company is voluntarily going one step beyond FERC's prescribed three-stage consultation process during relicensing of its Missouri-Madison hydro project. Montana Power's attempt to get all the players in the game led the utility to add an extra step to FERC's three-step consultation process for relicensing a hydro project. The additional step gave the utility an opportunity to learn more about the needs and concerns of the public and resource agencies. Simultaneously, it allowed the public an opportunity to gain a better understanding of Montana Power, the project, relicensing, and hydroelectricity in general. The three steps of FERC's consultation process require the applicant to meet with agencies and the public; to perform studies and write a draft application; and to file a final application with FERC and the consulting agencies. The public is given a chance to make comments about the project at each stage of the process. Montana Power started the relicensing process for its Missouri-Madison Project (FERC No. 2188) in the summer of 1989. The license for the project will expire in November 1994. After completing the meetings with the agencies and the public in the first step, Montana Power decided to add an extra stage of consultation with the agencies and public before writing the draft application.

Sullivan, M.G. (Montana Power Company, Butte, MT (United States))

1992-09-01T23:59:59.000Z

85

Turbine nozzle stage having thermocouple guide tube  

DOE Patents (OSTI)

A guide tube is fixed adjacent opposite ends in outer and inner covers of a nozzle stage segment. The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane. An insert is disposed in the nozzle vane and has apertures to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers of the insert on opposite sides of a central insert chamber containing the guide tube. The opposite ends of the guide tube are fixed to sleeves, in turn fixed to the outer and inner covers.

Schotsch, Margaret Jones (Greer, SC); Kirkpatrick, Francis Lawrence (late of Galway, NY); Lapine, Eric Michael (Northwood, NH)

2002-01-01T23:59:59.000Z

86

Single stage rankine and cycle power plant  

SciTech Connect

The specification describes a Rankine cycle power plant of the single stage type energized by gasified freon, the latter being derived from freon in the liquid state in a boiler provided in the form of a radio frequency heating cell adapted at low energy input to effect a rapid change of state from liquid freon at a given temperature and pressure to gaseous freon of relatively large volume, thereby to drive a Rankine cycle type of engine recognized in the prior art as a steam engine type of engine of the piston or turbine type.

Closs, J.J.

1981-10-13T23:59:59.000Z

87

Residential Two-Stage Gas Furnaces - Do They Save Energy?  

E-Print Network (OSTI)

of two-stage furnaces with BPM motors provides electricityof two-stage furnaces with BPM motors provides electricityPSC) and brushless permanent magnet (BPM) 1 . PSC motors are

Lekov, Alex; Franco, Victor; Lutz, James

2006-01-01T23:59:59.000Z

88

Direct Refrigeration from Heat Recovery Using 2-Stage Absorption Chillers  

E-Print Network (OSTI)

absorption chiller which can produce chilled water 44% more efficiently than the conventional single stage absorption chillers. The new 2-stage parallel flow system makes the chiller package more compact, more efficient, and easier to operate. Many types...

Hufford, P. E.

1983-01-01T23:59:59.000Z

89

Engineering human hepatic tissue for modeling liver-stage malaria  

E-Print Network (OSTI)

The Plcsmodium liver stage is an attractive target for the development of antimalarial drugs and vaccines, as it provides an opportunity to interrupt the life cycle of the parasite at a critical early stage. However, ...

Ng, Shengyong

2014-01-01T23:59:59.000Z

90

CX-006253: Categorical Exclusion Determination | Department of Energy  

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

53: Categorical Exclusion Determination 53: Categorical Exclusion Determination CX-006253: Categorical Exclusion Determination North Bonneville-Ross #1 230-Kilovolt, North Bonneville-Troutdale #2 230-Kilovolt Transmission Line Maintenance CX(s) Applied: B4.13 Date: 06/14/2011 Location(s): Clark County, Washington Office(s): Bonneville Power Administration Bonneville Power Administration (BPA) proposes to conduct transmission line maintenance along a portion of the North Bonneville-Ross #1 and North Bonneville-Troutdale #2 230-kilovolt transmission lines. The maintenance activities will take place within the existing transmission line and access road right-of-way easements and includes upgrading existing roads, developing new roads, installing two new wood pole structures and two new steel tower structures.

91

Generic Difference between Early and Late Stages of BATSE  

Science Journals Connector (OSTI)

The early and late stages of gamma-ray bursts are studied in a statistical analysis of the large sample of long BATSE events. The primary peak is used as the boundary between the early and late stages of emission. Significant differences are found between the stages: the early stage is shorter, it has harder emission, and it becomes a smaller fraction of the total burst duration for burst groups of decreasing intensity.

Igor; Maxim; Dmitrij; Anton; Michael; William; Geoffrey; Robert; Charles

2001-01-01T23:59:59.000Z

92

Protein Folding Simulation by Two-Stage Optimization  

Science Journals Connector (OSTI)

This paper proposes a two-stage optimization approach for protein folding simulation in the FCC lattice, inspired from...

A. Dayem Ullah; L. Kapsokalivas; M. Mann…

2009-01-01T23:59:59.000Z

93

FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION  

E-Print Network (OSTI)

CHAPTER 1 FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION MACHINES OF THE THIRD KIND Peter to a notion of staging free energy: the free energy invested in choreographing all the actors of a biochemical \\offprintinfo{(Title, Edition)}{(Author)} at the beginning of your document. 1 #12;2 FREE ENERGIES OF STAGING

Salamon, Peter

94

Two-stage and Three-stage Virtual Impactor System for Bioaerosol Concentration  

E-Print Network (OSTI)

with Arizona Fine Road Dust (ARD A-2) particles, the transmission efficiency dropped to 50% when the dust entering the two-stage CSVI accumulated to about 100 mg. When it was tested with ASHRAE dust, a decrease of 43% in the efficiency was detected after more...

Wen, Jing

2010-07-14T23:59:59.000Z

95

SCHEDA OFFERTA DI STAGE/LAVORO: X STAGE (durata mesi: 6 mesi )  

E-Print Network (OSTI)

controllo, sistemi di home e building automation, Il/La tiocinante sarà inserito/a in stage per un periodo Products, Power Systems, Low Voltage Products, Process Automation, Discrete Automation and Motion. All: http://www.unipv.eu/on- line/Home/Didattica.html) X Studente/laureando X Laureato Tipo laurea X LT

Segatti, Antonio

96

Third-stage turbine bucket airfoil  

DOE Patents (OSTI)

The third-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinates defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.

Pirolla, Peter Paul (Greenville, SC); Siden, Gunnar Leif (Greenville, SC); Humanchuk, David John (Simpsonville, SC); Brassfield, Steven Robert (Cincinnati, OH); Wilson, Paul Stuart (New Richmond, OH)

2002-01-01T23:59:59.000Z

97

New and Underutilized Technology: Multi-stage Indirect Evaporative Cooling  

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

Multi-stage Indirect Evaporative Multi-stage Indirect Evaporative Cooling New and Underutilized Technology: Multi-stage Indirect Evaporative Cooling October 4, 2013 - 4:33pm Addthis The following information outlines key deployment considerations for multi-stage evaporative cooling within the Federal sector. Benefits Multi-stage indirect evaporative cooling is an advanced evaporative cooler that can lower air temperatures without adding moisture. These systems evaporate water in a secondary (or working) airstream, which is discharged in multiple stages. No water or humidity is added to the primary (or product) airstream in the process. Application Multi-stage indirect evaporative cooling is applicable in office, research and development, service, and school applications. Climate and Regional Considerations

98

EA-0688: Hazardous Waste Staging Facility, Pantex Plant, Amarillo, Texas |  

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

688: Hazardous Waste Staging Facility, Pantex Plant, Amarillo, 688: Hazardous Waste Staging Facility, Pantex Plant, Amarillo, Texas EA-0688: Hazardous Waste Staging Facility, Pantex Plant, Amarillo, Texas SUMMARY This EA evaluates the environmental impacts of a proposal to construct the Hazardous Waste Staging Facility that would help to alleviate capacity problems as well as provide a single compliant facility to stage wastes at the U.S. Department of Energy's Pantex Plant in Amarillo, Texas. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD January 29, 1993 EA-0688: Finding of No Significant Impact Hazardous Waste Staging Facility, Pantex Plant, Amarillo, Texas January 29, 1993 EA-0688: Final Environmental Assessment Hazardous Waste Staging Facility, Pantex Plant, Amarillo, Texas

99

Integrated Solar Upper Stage (ISUS) mission trades  

SciTech Connect

Solar thermal propulsion and propulsion/power systems were recently identified as key technologies in the Operational Effectiveness and Cost Comparison Study (OECS) sponsored by Phillips Laboratory (PL). These technologies were found to be pervasively cost effective with short transfer times and very good performance across a wide range of missions. The on-going Integrated Solar Upper Stage (ISUS) Program sponsored by PL represents development of a solar thermal propulsion/power (bimodal) system. As part of this effort, mission trades are being conducted to further define the ISUS system for geosynchronous equatorial orbit (GEO), high Earth orbit (HEO-Molniya class), and mid Earth orbit (MEO-GPS class) missions. These trades will consider launch vehicles ranging in size from a LLV3 to an Atlas IIAS that insert the ISUS into low Earth orbit (LEO). These trades will be used to define the ISUS system for the planned Engine Ground Demonstration, a space demonstration mission, and as a future operational system.

Frye, P. [Rockwell Aerospace, Canoga Park, CA (United States). Rocketdyne Div.

1996-12-31T23:59:59.000Z

100

A Staged Muon Accelerator Facility For Neutrino and Collider Physics  

E-Print Network (OSTI)

Muon-based facilities offer unique potential to provide capabilities at both the Intensity Frontier with Neutrino Factories and the Energy Frontier with Muon Colliders. They rely on a novel technology with challenging parameters, for which the feasibility is currently being evaluated by the Muon Accelerator Program (MAP). A realistic scenario for a complementary series of staged facilities with increasing complexity and significant physics potential at each stage has been developed. It takes advantage of and leverages the capabilities already planned for Fermilab, especially the strategy for long-term improvement of the accelerator complex being initiated with the Proton Improvement Plan (PIP-II) and the Long Baseline Neutrino Facility (LBNF). Each stage is designed to provide an R&D platform to validate the technologies required for subsequent stages. The rationale and sequence of the staging process and the critical issues to be addressed at each stage, are presented.

Delahaye, Jean-Pierre; Brice, Stephen; Bross, Alan David; Denisov, Dmitri; Eichten, Estia; Holmes, Stephen; Lipton, Ronald; Neuffer, David; Palmer, Mark Alan; Bogacz, S Alex; Huber, Patrick; Kaplan, Daniel M; Snopok, Pavel; Kirk, Harold G; Palmer, Robert B; Ryne, Robert D

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Analyses of two-stage coal liquefaction processes  

SciTech Connect

The objectives of this study was to identify the most promising coal liquefaction configuration. Investigators evaluated six process configurations that have been tested at the Wilsonville facility and Lummus Crest. Plants with one- and two-reactor stages were included. The investigators evaluated both nonintegrated and integrated (interstate recycle) versions of the two-stage concept. They also looked at variations of the integrated mode, including short contact time versus back-mixed first stages, antisolvent versus critical solvent de-ashing, and coupled reactors versus interstage de-ashing. They performed sensitivity analyses to determine the effects of reducing the number of hydrotreater (second-stage) reactors either by increasing the catalyst replacement rate or by using a catalytic first-stage reactor in place of a thermal first-stage reactor. 15 figs., 54 tabs.

Peluso, M. (Lummus Crest, Inc., Bloomfield, NJ (USA))

1991-05-01T23:59:59.000Z

102

A Two Stage Stochastic Equilibrium Model for Electricity Markets ...  

E-Print Network (OSTI)

Feb 6, 2008 ... A Two Stage Stochastic Equilibrium Model for Electricity Markets with Two Way Contracts. Dali Zhang (zhangdl ***at*** soton.ac.uk) Huifu Xu ...

Dali Zhang

2008-02-06T23:59:59.000Z

103

Optimizing Treatment Performance of Microbial Fuel Cells by Reactor Staging  

Science Journals Connector (OSTI)

Optimizing Treatment Performance of Microbial Fuel Cells by Reactor Staging ... Multi-unit optimization is a recently proposed method that uses multiple similar units to optimize process performance. ...

Roberto P. Pinto; Boris Tartakovsky; Michel Perrier; Bala Srinivasan

2010-08-18T23:59:59.000Z

104

Geothermal: Sponsored by OSTI -- Two-Stage, Integrated, Geothermal...  

Office of Scientific and Technical Information (OSTI)

Two-Stage, Integrated, Geothermal-CO2 Storage Reservoirs: An Approach for Sustainable Energy Production, CO2-Sequestration Security, and Reduced Environmental Risk Geothermal...

105

CX-002446: Categorical Exclusion Determination | Department of Energy  

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

2446: Categorical Exclusion Determination 2446: Categorical Exclusion Determination CX-002446: Categorical Exclusion Determination Green Mountain Switchyard Stage 06 Spring 2010 CX(s) Applied: B4.6, B4.11 Date: 05/25/2010 Location(s): Colorado Office(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration proposes to install a new control building and a relay and control system and associated equipment at Green Mountain Switchyard, which is located on Bureau of Reclamation land, at Green Mountain Dam, in Summit County, Colorado (Township 2 South, Range 80 West, Section 15; King Creek 7.5' United States Geological Survey quadrangle map). All proposed construction and installation will occur at the existing, disturbed switchyard facilities. DOCUMENT(S) AVAILABLE FOR DOWNLOAD

106

Protein Folding Simulation by Two-Stage Optimization  

E-Print Network (OSTI)

Protein Folding Simulation by Two-Stage Optimization A. Dayem Ullah1 , L. Kapsokalivas1 , M. Mann2 propose a two-stage optimization approach for protein folding simulation in the FCC lattice, inspired from procedure based on simulated annealing alone. 1 Introduction The question of how proteins fold and whether

Will, Sebastian

107

Staging Laser Plasma Accelerators for Increased Beam Energy  

E-Print Network (OSTI)

Staging Laser Plasma Accelerators for Increased Beam Energy D. Panasenko, A. J. Shu, C. B., Berkeley, California 94720, USA Abstract. Staging laser plasma accelerators is an efficient way of mitigating laser pump depletion in laser driven accelerators and necessary for reaching high energies

Geddes, Cameron Guy Robinson

108

Chapter Number 18 Two stage approaches for modeling pollutant  

E-Print Network (OSTI)

Chapter Number 18 Two stage approaches for modeling pollutant emission of diesel engine based) emissions, and fuel consumption. In the first stage, we estimate the response directly from the controllable for the manufacturers to be able to produce fuel-economic vehicles, which respect pollutant emissions standards

Paris-Sud XI, Université de

109

Lithium intercalated graphite : experimental Compton profile for stage one  

E-Print Network (OSTI)

L-301 Lithium intercalated graphite : experimental Compton profile for stage one G. Loupias, J différence des profils Compton est compatible avec un transfert total de l'électron de conduction du lithium électronique due à l'insertion. Abstract. 2014 Electron momentum distribution of the first stage lithium

Paris-Sud XI, Université de

110

Combined fuel and air staged power generation system  

SciTech Connect

A method and apparatus for generation of electric power employing fuel and air staging in which a first stage gas turbine and a second stage partial oxidation gas turbine power operated in parallel. A first portion of fuel and oxidant are provided to the first stage gas turbine which generates a first portion of electric power and a hot oxidant. A second portion of fuel and oxidant are provided to the second stage partial oxidation gas turbine which generates a second portion of electric power and a hot syngas. The hot oxidant and the hot syngas are provided to a bottoming cycle employing a fuel-fired boiler by which a third portion of electric power is generated.

Rabovitser, Iosif K; Pratapas, John M; Boulanov, Dmitri

2014-05-27T23:59:59.000Z

111

Two-stage thermal/nonthermal waste treatment process  

SciTech Connect

An innovative waste treatment technology is being developed in Los Alamos to address the destruction of hazardous organic wastes. The technology described in this report uses two stages: a packed bed reactor (PBR) in the first stage to volatilize and/or combust liquid organics and a silent discharge plasma (SDP) reactor to remove entrained hazardous compounds in the off-gas to even lower levels. We have constructed pre-pilot-scale PBR-SDP apparatus and tested the two stages separately and in combined modes. These tests are described in the report.

Rosocha, L.A.; Anderson, G.K.; Coogan, J.J.; Kang, M.; Tennant, R.A.; Wantuck, P.J.

1993-05-01T23:59:59.000Z

112

Stage 1: Organizing the LEDS Process | Open Energy Information  

Open Energy Info (EERE)

Stage 1: Organizing the LEDS Process Stage 1: Organizing the LEDS Process (Redirected from Low Emission Development Strategies Methodology) Jump to: navigation, search Stage 1 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other

113

Stage 4: Prioritizing and Planning for Actions | Open Energy Information  

Open Energy Info (EERE)

Stage 4: Prioritizing and Planning for Actions Stage 4: Prioritizing and Planning for Actions Jump to: navigation, search Stage 4 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development

114

Approximation Algorithms for 2-Stage Stochastic Scheduling Problems  

Science Journals Connector (OSTI)

There has been a series of results deriving approximation algorithms for 2-stage discrete stochastic optimization problems, in which the probabilistic component of the input is given by means of "black box", from which the algorithm "learns" the distribution ...

David B. Shmoys; Mauro Sozio

2007-06-01T23:59:59.000Z

115

Low Temperature Stage in Electron Microscope for Study on Superconductors  

Science Journals Connector (OSTI)

......superconductors. The elementary magnetic property of superconductors...of the superconducting resistance-transition must be connected...stage to be movable. 2. Electric lead wires Electric lead...experiment by measuring the resistance of the specimen by the......

Tomoyuki MIYAZAKI; Ryozo AOKI; Bunjyu SHINOZAKI; Shigeru YAMASHITA

1980-01-01T23:59:59.000Z

116

Span-Wise Mixing in a Multi-Stage Compressor  

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

SPAN-WISE MIXING IN A MULTI-STAGE COMPRESSOR SPAN-WISE MIXING IN A MULTI-STAGE COMPRESSOR Penn State Bud Lakshminarayana (Cengiz Camci) #036 * Phenomena that have eluded gas turbine designers include the effects of rotor-stator interactions and the physics of mixing of velocity, pressure, temperature and velocity fields. * Compressor tests were conducted in a three stage compressor where deterministic unsteadiness and random fluctuations causing spanwise mixing are realistically replicated . This provided valuable information on rotor stator interaction effects and the nature of the unsteadiness. * Multi-stage compressor energy efficiency improvements are only possible by careful implementation of spanwise mixing models into modern CFD codes (Computational Fluid Dynamics) . *This investigation provided results that are extremely helpful in improving computer

117

Stage 3c: Developing and Assessing Low Emissions Development Scenarios |  

Open Energy Info (EERE)

Stage 3c: Developing and Assessing Low Emissions Development Scenarios Stage 3c: Developing and Assessing Low Emissions Development Scenarios Jump to: navigation, search Stage 3 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other

118

Dynamics of Sleep Stage Transitions in Health and Disease  

Science Journals Connector (OSTI)

Sleep dynamics emerges from complex interactions between neuronal populations in many brain regions. Annotated sleep stages from electroencephalography (EEG) recordings could potentially provide a non?invasive way to obtain valuable insights into the mechanisms of these interactions and ultimately into the very nature of sleep regulation. However to date sleep stage analysis has been restricted only very recently expanding the scope of the traditional descriptive statistics to more dynamical concepts of the duration of and transitions between vigilance states and temporal evaluation of transition probabilities among different stages. Physiological and/or pathological implications of the dynamics of sleep stage transitions have to date not been investigated. Here we study detailed duration and transition statistics among sleep stages in healthy humans and patients with chronic fatigue syndrome known to be associated with disturbed sleep. We find that the durations of waking and non?REM sleep in particular deep sleep (Stages III and IV) during the nighttime follow a power?law probability distribution function while REM sleep durations follow an exponential function suggestive of complex underlying mechanisms governing the onset of light sleep. We also find a substantial number of REM to non?REM transitions in humans while this transition is reported to be virtually non?existent in rats. Interestingly the probability of this REM to non?REM transition is significantly lower in the patients than in controls resulting in a significantly greater REM to awake together with Stage I to awake transition probability. This might potentially account for the reported poor sleep quality in the patients because the normal continuation of sleep after either the lightest or REM sleep is disrupted. We conclude that the dynamical transition analysis of sleep stages is useful for elucidating yet?to?be?determined human sleep regulation mechanisms with a pathophysiological implication.

Akifumi Kishi; Zbigniew R. Struzik; Benjamin H. Natelson; Fumiharu Togo; Yoshiharu Yamamoto

2007-01-01T23:59:59.000Z

119

Unconventional Staging Package Selection Leads to Cost Savings  

SciTech Connect

In late 2010, U.S. Department of Energy (DOE) Deputy Secretary of Energy, Daniel Poneman, directed that an analysis be conducted on the U-233 steel-clad, Zero Power Reactor (ZPR) fuel plates that were stored at Oak Ridge National Laboratory (ORNL), focusing on cost savings and any potential DOE programmatic needs for the special nuclear material (SNM). The NA-162 Nuclear Criticality Safety Program requested retention of these fuel plates for use in experiments at the Nevada National Security Site (NNSS). A Secretarial Initiative challenged ORNL to make the first shipment to the NNSS by the end of the 2011 calendar year, and this effort became known as the U-233 Project Accelerated Shipping Campaign. To meet the Secretarial Initiative, National Security Technologies, LLC (NSTec), the NNSS Management and Operations contractor, was asked to facilitate the receipt and staging of the U-233 fuel plates in the Device Assembly Facility (DAF). Because there were insufficient staging containers available for the fuel plates, NSTec conducted an analysis of alternatives. The project required a staging method that would reduce the staging footprint while addressing nuclear criticality safety and radiation exposure concerns. To accommodate an intermediate staging method of approximately five years, the NSTec project team determined that a unique and unconventional staging package, the AT-400R, was available to meet the project requirements. By using the AT-400R containers, NSTec was able to realize a cost savings of approximately $10K per container, a total cost savings of nearly $450K.

,

2012-06-07T23:59:59.000Z

120

CX-012090: Categorical Exclusion Determination  

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

Henderson-Mead Number 2 230-Kilovolt Transmission Line, Erosion Repair at Structure 2/4 CX(s) Applied: B1.3 Date: 09/11/2013 Location(s): Nevada, Nevada Offices(s): Western Area Power Administration-Desert Southwest Region

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

CX-011615: Categorical Exclusion Determination  

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

Curecanti-North Fork 230-kilovolt Transmission Line Routine Maintenance of Right-of-Way Roads CX(s) Applied: B1.3 Date: 12/02/2013 Location(s): Colorado, Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

122

CX-012348: Categorical Exclusion Determination  

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

Danger Tree Management on Curecanti to Poncha 230-kilovolt Transmission Line, Gunnison County, Colorado CX(s) Applied: B1.3 Date: 07/02/2014 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

123

CX-012347: Categorical Exclusion Determination  

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

Danger Tree Management on Craig-Rifle 230-kilovolt Transmission Line, Moffat, Rio Blanco, and Garfield Counties, Colorado CX(s) Applied: B1.3 Date: 06/02/2014 Location(s): Colorado, Colorado, Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

124

CX-012355: Categorical Exclusion Determination  

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

Kayenta-Navajo 230-kilovolt Transmission Line Landing Construction and Insulator Replacement, Navajo County, Arizona CX(s) Applied: B1.3 Date: 06/05/2014 Location(s): Arizona Offices(s): Western Area Power Administration-Rocky Mountain Region

125

EIS-0323-S1: Sacramento Area Voltage Support Project Supplemental Environmental Impact Statement and Environmental Impact Report, Placer, Sacramento, and Sutter Counties, California  

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

Construction and operation has been proposed of approximately 31 to 38 miles of new, double-circuit, 230-kilovolt (kV) transmission line between Western's O'Banion Substation and the area just south of SMUD's Elverta Substation and the reconstruciton of SMUD's existing 230-kV/115kV transmission line between SMUD's Elverta and Natomas substations.

126

EIS-0067: 230-kV International Transmission Line San Diego County, California to Tijuana, Mexico, San Diego Gas and Electric Company  

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

The Economic Regulatory Administration and the California Public Utilities Commission jointly prepared this EIS to evaluate the environmental impacts of the construction, maintenance and operation of a 10-mile, 230-kilovolt transmission line across the U.S./Mexico border for the purpose of economic exchange of power and increased reliability.

127

EIS-0294: Sutter Power Project, Sutter County, California  

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

This EIS analyzes Western Area Power Administration's (Western) decision to support Calpine Corporation (Calpine) to construct an electric generating facility and associated 230-kilovolt (kV) transmission line, approximately 3.5 miles in length, known as the Sutter Power Plant (SPP).

128

CX-008783: Categorical Exclusion Determination  

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

Fiber Optic Installation at the Stegall 230 Kilovolt Substation Scotts Bluff County, Nebraska CX(s) Applied: B4.7 Date: 06/20/2012 Location(s): Nebraska Offices(s): Western Area Power Administration-Rocky Mountain Region

129

CX-012075: Categorical Exclusion Determination  

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

Cheyenne-Snowy Range 230-Kilovolt Central Rig Upgrade Eaglenet Communications Cable Interconnection CX(s) Applied: B4.7 Date: 02/10/2014 Location(s): Wyoming, Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

130

EIS-0141: Washington Water Power/B.C. Hydro Transmission Interconnection Project  

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

The U.S. Department of Energy developed this statement to evaluate the environmental impacts of constructing and operating a double-circuit 230-kilovolt electrical transmission line that would link the electrical systems of the Washington Water Power Company and the British Columbia Hydro and Power Authority.

131

EIS-0101: Thermopolis, Alcova, Casper Transmission Line Project  

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

The Western Area Power Administration developed this statement to evaluate the environmental impacts of constructing, operating and maintaining a 230-kilovolt transmission line between Thermopolis, Wyoming, and Alcova, Wyoming, and a 230/345-kilovolt transmission line between Alcova, Wyoming, and Casper, Wyoming.

132

CX-010883: Categorical Exclusion Determination  

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

PHX-LOB and LIB-LOB 230-Kilovolt Double-Circuit- Replace Insulators at Structure No. 28-2 With NCI Type Polymers CX(s) Applied: B1.3 Date: 08/12/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

133

CX-012074: Categorical Exclusion Determination  

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

Canyon City West-Midway 230-Kilovolt Transmission Line Safety Marker Ball Installation CX(s) Applied: B.13 Date: 04/07/2014 Location(s): Colorado, Colorado, Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

134

Modeling the two stages of surfactant-aided soil washing  

Science Journals Connector (OSTI)

This paper provides new insights into modelling the distribution of hydrophobic compounds between soil and water phases in the presence of nonionic surfactant micelles. Experimental measurements were made of various systems comprising a non-ionic surfactant, five soils of different fractional organic carbon contents, and a hydrophobic (disperse) dye. Soil-washing performance was quantified using reciprocal surfactant-soil solubilization coefficients (1/Kd). Two stages of partitioning were identified. In stage 1, the dye concentration increased slightly with increasing surfactant dose until surfactant monomers saturated the bulk solution at the critical micelle concentration (cmc). The washing performance was 1 : 1 proportional to the surfactant monomer concentration. Most of the surfactant in this stage is sorbed. In stage 2, above the cmc, soil-washing performance increased linearly with increasing available surfactant micelles in the bulk solution. Reciprocal surfactant-soil solubilization coefficients (1/Kd), octanol–water partition coefficients (Kow), fractional organic carbon content of the soil ( foc), and surfactant concentration were correlated for each stage in the soil-washing process using two simple equations.

W Chu; W.S So

2001-01-01T23:59:59.000Z

135

Method for encapsulating hazardous wastes using a staged mold  

DOE Patents (OSTI)

A staged mold and method for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides. In the third stage, the mold with the jacketed agglomerate is inverted, the first mold base is removed exposing the former bottom of the agglomerate, powdered thermoplastic is poured over the former bottom, the first mold base is replaced to compress the thermoplastic, heat is applied to melt the new thermoplastic and the top part of the jacket on the sides, the plastic is cooled jacketing the bottom and fusing with the jacketing on the sides to complete the seamless encapsulation of the agglomerate.

Unger, Samuel L. (Los Angeles, CA); Telles, Rodney W. (Alhambra, CA); Lubowitz, Hyman R. (Rolling Hills Estates, CA)

1989-01-01T23:59:59.000Z

136

Early stages in the development of stress corrosion cracks  

SciTech Connect

Processes in growth of short cracks and stage I of long stress corrosion cracks were identified and evaluated. There is evidence that electrochemical effects can cause short stress corrosion cracks to grow at rates faster or slower than long cracks. Short cracks can grow at faster rates than long cracks for a salt film dissolution growth mechanism or from reduced oxygen inhibition of hydrolytic acidification. An increasing crack growth rate with increasing crack length could result from a process of increasing crack tip concentration of a critical anion, such as Cl{sup {minus}}, with increasing crack length in a system where the crack velocity is dependent on the Cl{sup {minus}} or some other anion concentration. An increasing potential drop between crack tip and mouth would result in an increased anion concentration at the crack tip and hence an increasing crack velocity. Stage I behavior of long cracks is another early development stage in the life of a stress corrosion crack which is poorly understood. This stage can be described by da/dt = AK{sup m} where da/dt is crack velocity, A is a constant, K is stress intensity and m ranges from 2 to 24 for a variety of materials and environments. Only the salt film dissolution model was found to quantitatively describe this stage; however, the model was only tested on one material and its general applicability is unknown.

Jones, R.H.; Simonen, E.P.

1993-12-01T23:59:59.000Z

137

Stage 3a: Developing BAU Scenario | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Stage 3a: Developing BAU Scenario Jump to: navigation, search Stage 3 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country

138

Preliminary low-level waste feed staging plan  

SciTech Connect

A Preliminary Low-Level Waste Feed Staging Plan was prepared. The plan supports the Phase I privatization effort by providing recommendations that may influence the technical content of the final request for proposal, and the interface control documents for the turnover of two double-shell tanks (DST) to the private contractors for use as feed tanks and the transfer of supernate to these tanks. Additionally, the preliminary schedule of feed staging activities will be useful to both RL and the private bidders during the contract negotiation period. A revised feed staging plan will be issued in August 1996 reflecting anticipated changes in the request for proposal, resolution of issues identified in this report, and completion of additional work scope.

Certa, P.J.

1996-02-05T23:59:59.000Z

139

Ultra high vacuum heating and rotating specimen stage  

DOE Patents (OSTI)

A heating and rotating specimen stage provides for simultaneous specimen heating and rotating. The stage is ideally suited for operation in ultrahigh vacuum (1.times.10.sup.-9 torr or less), but is useful at atmosphere and in pressurized systems as well. A specimen is placed on a specimen holder that is attached to a heater that, in turn, is attached to a top housing. The top housing is rotated relative to a bottom housing and electrically connected thereto by electrically conductive brushes. This stage is made of materials that are compatible with UHV, able to withstand high temperatures, possess low outgassing rates, are gall and seize resistant, and are able to carry substantial electrical loading without overheating.

Coombs, III, Arthur W. (Patterson, CA)

1995-01-01T23:59:59.000Z

140

Ultra high vacuum heating and rotating specimen stage  

DOE Patents (OSTI)

A heating and rotating specimen stage provides for simultaneous specimen heating and rotating. The stage is ideally suited for operation in ultrahigh vacuum (1{times}10{sup {minus}9} torr or less), but is useful at atmosphere and in pressurized systems as well. A specimen is placed on a specimen holder that is attached to a heater that, in turn, is attached to a top housing. The top housing is rotated relative to a bottom housing and electrically connected thereto by electrically conductive brushes. This stage is made of materials that are compatible with UHV, able to withstand high temperatures, possess low outgassing rates, are gall and seize resistant, and are able to carry substantial electrical loading without overheating. 5 figs.

Coombs, A.W. III

1995-05-02T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Enhancing Staging Capabilities at the Device Assembly Facility  

SciTech Connect

The radioactive material limits allowed by the Documented Safety Analysis (DSA) at the Nevada National Security Site (NNSS) Device Assembly Facility (DAF) can support larger quantities than the floor space will accommodate. In order to maximize the full staging bunker capability, National Security Technologies, LLC, (NSTec) is developing a plan to take advantage of these high inventory limits and evaluate staging options such as shelves, racks, and mezzanines. This plan will investigate cost and evaluate U.S. Department of Energy (DOE) complex-wide alternatives used at other sites (Highly Enriched Uranium Manufacturing Facility, Pantex, Los Alamos National Laboratory, Sandia National Laboratories, etc.) that addressed similar situations.

Kanning, R. A.; Long, R. G.; Garcia, B. O.; Williams, V. D.

2013-06-08T23:59:59.000Z

142

Experiments and Modeling of Two-Stage Combustion in Low-Emissions...  

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

of Two - - Stage Combustion in Stage Combustion in Low Low - - Emissions Diesel Engines Emissions Diesel Engines August 4, 2008 Rolf D. Reitz, Sage L. Kokjohn, Thaddeus A....

143

DEVELOPMENT OF WATER JET PLASMA MIRROR FOR STAGING OF LASER PLASMA ACCELERATORS  

E-Print Network (OSTI)

STAGING OF LASER PLASMA ACCELERATORS ? Dmitriy Panasenko,Staging Laser Plasma Accelerators (LPAs) is necessary in4]. INTRODUCTION Laser Plasma Accelerators (LPAs) have now

Panasenko, Dmitriy

2010-01-01T23:59:59.000Z

144

E-Print Network 3.0 - advanced pathological stage Sample Search...  

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

pathological stage Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced pathological stage Page: << < 1 2 3 4 5 > >> 1 REGISTRATION Course Fees...

145

TOPOLOGY EVOLUTION OF HIGH PERFORMANCE XY FLEXURE STAGES  

E-Print Network (OSTI)

with increasing range of motion. When designed for a motion system, an XY flexure needs to have low cross-axes errors to reduce dependence on calibration and end-point feedback. In the absence of an additional yaw control axis, it is also important that the parasitic yaw rotation of the motion stage is minimal. A key

Awtar, Shorya

146

Early-stage power grid analysis for uncertain working modes  

Science Journals Connector (OSTI)

High-performance integrated circuits are now reaching the 100-plus watt regime, and power delivery and power grid signal integrity have become critical. Analyzing the performance of the power delivery system requires knowledge of the current drawn by ... Keywords: Early-stage simulation, power grid, random walk, supply network

Haifeng Qian; S. R. Nassif; S. S. Sapatnekar

2006-11-01T23:59:59.000Z

147

Early-stage Power Grid Analysis for Uncertain Working Modes  

E-Print Network (OSTI)

Early-stage Power Grid Analysis for Uncertain Working Modes Haifeng Qian Department of ECE circuits are now reaching the 100-plus watt regime, and power delivery and power grid signal integrity have and Design Aids General Terms Algorithms, Performance, Design, Reliability Keywords Power grid, Supply

Sapatnekar, Sachin

148

High Tar Reduction in a Two-Stage Gasifier  

Science Journals Connector (OSTI)

High Tar Reduction in a Two-Stage Gasifier ... At small- and medium-scale production up to 10 MWe, the gasification of biomass for use in a gas engine or gas turbine can give a significantly higher efficiency of electricity production than that of biomass in traditional steam cycle technology. ...

Peder Brandt; Elfinn Larsen; Ulrik Henriksen

2000-07-17T23:59:59.000Z

149

Aerodynamic performance measurements of a film-cooled turbine stage  

E-Print Network (OSTI)

The goal of this research is to measure the aerodynamic performance of a film-cooled turbine stage and to quantify the loss caused by film-cooling. A secondary goal of the research is to provide a detailed breakdown of the ...

Keogh, Rory (Rory Colm), 1968-

2001-01-01T23:59:59.000Z

150

SINGLE STAGE GRID CONVERTERS FOR BATTERY ENERGY STORAGE  

E-Print Network (OSTI)

in the power system network such as wind and solar is still a challenge in our days. Energy storage systemsSINGLE STAGE GRID CONVERTERS FOR BATTERY ENERGY STORAGE I. Trintis*, S. Munk-Nielsen*, R presents power converters for battery energy storage systems (BESS) which can interface medium- voltage

Munk-Nielsen, Stig

151

ANALYSIS OF THE EARLY STAGE OF THERMAL RUNAWAY  

Science Journals Connector (OSTI)

......stage; equation (1) does not model the consumption of chemical species which becomes more...conduction from the walls of the containing vessel over unit time (the time, very nearly...combustion of a finite region of gaseous fuel (Ph.D. Thesis, Cranfield Institute......

J. W. DOLD

1985-08-01T23:59:59.000Z

152

Early developmental patterning sets the stage for brain evolution  

E-Print Network (OSTI)

Early developmental patterning sets the stage for brain evolution Hans A. Hofmann1 Section of Texas, Austin, TX 78712 T he evolution of brain structure and function has long fascinated biologists of the brain--or brain region--and body size across a wide range of vertebrates (1). Besides random drift, two

Hofmann, Hans A.

153

Vacuum compatible, high-speed, 2-D mirror tilt stage  

DOE Patents (OSTI)

A compact and vacuum compatible magnetic-coil driven tiltable stage that is equipped with a high efficiency reflective coating can be employed as a scanner in EUV applications. The drive electronics for the scanner is fully in situ programmable and rapidly switchable.

Denham; Paul E. (Crockett, CA)

2007-09-25T23:59:59.000Z

154

Lessons from early stages design of mobile applications  

Science Journals Connector (OSTI)

This paper presents a set of lessons that resulted from the design process of several mobile applications. It starts by addressing the difficulties that emerged through the data gathering, prototyping and evaluation stages also stressing the absence ... Keywords: design methodologies, evaluation, mobile devices, prototyping, scenarios design

Marco de Sá; Luís Carriço

2008-09-01T23:59:59.000Z

155

Stage 1: Organizing the LEDS Process | Open Energy Information  

Open Energy Info (EERE)

: Organizing the LEDS Process : Organizing the LEDS Process Jump to: navigation, search Stage 1 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development

156

Categorical Exclusion (CX) Determination Proposed Action: Havre Substation, Stage 03.  

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

Havre Substation, Stage 03. Havre Substation, Stage 03. Description of Proposed Action: The Western Area Power Administration (Western) is proposing to expand the Havre Substation approximately 150 ft to the north to accommodate a new delivery service from the newly built Herron Substation by Hill County. The expansion also converts the existing 115-kV single bus into a ring bus which will improve reliability. Western is also expanding the yard to the east to accommodate the replacement of the existing control building and control boards. Number and Title of Categorical Exclusions Being Applied: 10 CFR 1021.410 Subpart D, Appendix B, B4.11: Construction of electric power substations .. . or modification of existing substations and support facilities . Regulatory Requirements for CX Determination: The DOE Guidelines for Compliance with

157

Stage 3b: Assessing Opportunities | Open Energy Information  

Open Energy Info (EERE)

b: Assessing Opportunities b: Assessing Opportunities Jump to: navigation, search Stage 3b LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other economic and resource data as needed for LEDS development

158

Statistical Methods and Tools for Hanford Staged Feed Tank Sampling  

SciTech Connect

This report summarizes work conducted by Pacific Northwest National Laboratory to technically evaluate the current approach to staged feed sampling of high-level waste (HLW) sludge to meet waste acceptance criteria (WAC) for transfer from tank farms to the Hanford Waste Treatment and Immobilization Plant (WTP). The current sampling and analysis approach is detailed in the document titled Initial Data Quality Objectives for WTP Feed Acceptance Criteria, 24590-WTP-RPT-MGT-11-014, Revision 0 (Arakali et al. 2011). The goal of this current work is to evaluate and provide recommendations to support a defensible, technical and statistical basis for the staged feed sampling approach that meets WAC data quality objectives (DQOs).

Fountain, Matthew S.; Brigantic, Robert T.; Peterson, Reid A.

2013-10-01T23:59:59.000Z

159

Single Stage Contactor Testing Of The Next Generation Solvent Blend  

SciTech Connect

The Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU) facility at the Savannah River Site (SRS) is actively pursuing the transition from the current BOBCalixC6 based solvent to the Next Generation Solvent (NGS)-MCU solvent to increase the cesium decontamination factor. To support this integration of NGS into the MCU facility the Savannah River National Laboratory (SRNL) performed testing of a blend of the NGS (MaxCalix based solvent) with the current solvent (BOBCalixC6 based solvent) for the removal of cesium (Cs) from the liquid salt waste stream. This testing utilized a blend of BOBCalixC6 based solvent and the NGS with the new extractant, MaxCalix, as well as a new suppressor, tris(3,7dimethyloctyl) guanidine. Single stage tests were conducted using the full size V-05 and V-10 liquid-to-liquid centrifugal contactors installed at SRNL. These tests were designed to determine the mass transfer and hydraulic characteristics with the NGS solvent blended with the projected heel of the BOBCalixC6 based solvent that will exist in MCU at time of transition. The test program evaluated the amount of organic carryover and the droplet size of the organic carryover phases using several analytical methods. The results indicate that hydraulically, the NGS solvent performed hydraulically similar to the current solvent which was expected. For the organic carryover 93% of the solvent is predicted to be recovered from the stripping operation and 96% from the extraction operation. As for the mass transfer, the NGS solvent significantly improved the cesium DF by at least an order of magnitude when extrapolating the One-stage results to actual Seven-stage extraction operation with a stage efficiency of 95%.

Herman, D. T.; Peters, T. B.; Duignan, M. R.; Williams, M. R.; Poirier, M. R.; Brass, E. A.; Garrison, A. G.; Ketusky, E. T.

2014-01-06T23:59:59.000Z

160

Idaho Site's Cold War Cleanup Takes Center Stage in Publication |  

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

Site's Cold War Cleanup Takes Center Stage in Publication Site's Cold War Cleanup Takes Center Stage in Publication Idaho Site's Cold War Cleanup Takes Center Stage in Publication January 22, 2013 - 12:00pm Addthis The Society of American Military Engineers focuses on the Idaho site’s environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers focuses on the Idaho site's environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers highlights this Idaho site photo on the cover of the latest issue of its publication, The Military Engineer. In the photo, work is under way to move spent nuclear fuel from wet storage to the safer, more permanent alternative of dry storage.

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Idaho Site's Cold War Cleanup Takes Center Stage in Publication |  

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

Idaho Site's Cold War Cleanup Takes Center Stage in Publication Idaho Site's Cold War Cleanup Takes Center Stage in Publication Idaho Site's Cold War Cleanup Takes Center Stage in Publication January 22, 2013 - 12:00pm Addthis The Society of American Military Engineers focuses on the Idaho site’s environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers focuses on the Idaho site's environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers highlights this Idaho site photo on the cover of the latest issue of its publication, The Military Engineer. In the photo, work is under way to move spent nuclear fuel from wet storage to the safer, more permanent alternative of dry storage.

162

A two stage procedure for control structure analysis and design  

Science Journals Connector (OSTI)

A two stage procedure for control structure analysis and design is proposed and investigated on a heatpump control structure synthesis problem. In the first stage qualitative process knowledge is used to suggest possible control structures, ie. measurements, actuators and feasible loop pairings for multiloop SISO (scalar) control. In the second stage frequency dependent SVD (Singular Value Decomposition) is employed on a quantitative model to indicate, whether a multivariable control strategy is called for. If scalar control is inferred to be adequate, the RGA (Relative Gain Array) method is used to synthesize loop pairings for multiloop SISO control. The proposed procedure is demonstrated using a heatpump control structure analysis and design problem. The heatpump is used on an industrial scale energy integrated distillation column. Based on qualitative knowledge the process interactions are illustrated using a \\{DYnamic\\} Quantity Interaction Diagram (DYQUID). From qualitative considerations a multiloop SISO control strategy, which concurs with intuitive engineering knowledge, is suggested. A linear state space model obtained from a non-linear simulation model is used to quantitatively analyse the control structuring problem. SVD analysis shows, that a multiloop control strategy is justified, and RGA analysis suggests the same loop structure as inferred qualitatively. Finally the overall control structure for the energy integrated distillation column is discussed in relation to experimental results.

Jens Karlsmose; Arne Koggersbøl; Niels Jensen; Sten Bay Jørgensen

1994-01-01T23:59:59.000Z

163

High-power multi-stage Rankine cycles  

SciTech Connect

This paper presents an analysis of the multi-stage Rankine cycle aiming at optimizing the power output from low-temperature heat sources such as geothermal or waste heat. A design methodology based on finite-time thermodynamics and the maximum power concept is used in which the shape and the power output of the maximum power cycle are identified and utilized to compare and evaluate different Rankine cycle configurations. The maximum power cycle provides the upper-limit power obtained from any thermodynamic cycle for specified boundary conditions and heat exchanger characteristics. It also provides a useful tool for studying power cycles and forms the basis for making design improvements.

Ibrahim, O.M. [Univ. of Rhode Island, Kingston, RI (United States). Mechanical Engineering Dept.; Klein, S.A. [Univ. of Wisconsin, Madison, WI (United States). Mechanical Engineering Dept.

1995-09-01T23:59:59.000Z

164

Method of operating a two-stage coal gasifier  

DOE Patents (OSTI)

A method of operating an entrained flow coal gasifier (10) via a two-stage gasification process. A portion of the coal (18) to be gasified is combusted in a combustion zone (30) with near stoichiometric air to generate combustion products. The combustion products are conveyed from the combustion zone into a reduction zone (32) wherein additional coal is injected into the combustion products to react with the combustion products to form a combustible gas. The additional coal is injected into the reduction zone as a mixture (60) consisting of coal and steam, preferably with a coal-to-steam weight ratio of approximately ten to one.

Tanca, Michael C. (Tariffville, CT)

1982-01-01T23:59:59.000Z

165

Integrated two-stage coal liquefaction studies. Final report  

SciTech Connect

Studies have been undertaken to evaluate variables associated with the dissolution of coal and with the upgrading of residuum containing recycle solvent in an integrated two stage coal liquefaction process. Areas studied include dissolver solvent quality, disposable dissolver catalysts, dissolver pressure effects, non-disposable hydrotreater catalysts and distillate:residuum:coal weight ratios. In order to effectively study the effects of a residuum containing solvent on coal liquefaction at short residence times, a stirred microautoclave reactor, the ''Borgialli'' microreactor, was designed and constructed as part of this program. 24 refs., 55 figs., 52 tabs.

Silver, H.F.; Frazee, W.S.

1985-08-01T23:59:59.000Z

166

Catalytic multi-stage liquefaction (CMSL). Final report  

SciTech Connect

The 17-day bench run CMSL-6 (227-83), on Black Thunder Mine subbituminous coal and with an approximate space velocity of 481 kg/hr/m{sup 3} (30 lb/hr/ft{sup 3}), tested the performance of a dispersed slurry catalyst in powdered form added to the first stage thermal reactor. This catalyst, based on molybdenum-containing sulfated iron oxide prepared at HTI, had about 15% moisture, 43% Fe and 7% Mo with a BET surface area of about 40 m{sup 2}/g. The second stage reactor had a partially deactivated Shell S-317 catalyst (initial age=520 kg-coal/kg-catalyst) to make the effects of the slurry catalyst more apparent and to attain a realistic equilibrium catalyst age sooner. An in-line hydrotreater was successfully employed during this run to treat atmospheric still overhead and separator overhead products. No interstage product separator was utilized in this run. For the first run condition, the catalyst additive rate was 1400-4300 ppm (of coal) Fe with 200-700 ppm Mo using a slurrying oil recycle consisting of 60% of filtered product slurry and 40% of ashy recycle (unfiltered product slurry) at a relatively low severity with first and second stage temperatures of 427{degrees}C and 413{degrees}C (800{degrees}F and 775{degrees}F), respectively. After that the additive rate was lowered to 700 ppm Fe with 100 ppm of Mo and the severity was increased with first and second stage temperatures of 441{degrees}C and 427{degrees}C (825{degrees}F and 800{degrees}F) respectively. The proportion of ashy recycle was maintained at 40% in Condition 2, and it was lowered to 25% in Condition 3. In Condition 4, the proportion of ashy recycle was set at 50%, but, because of slowing of the product slurry filtration, vacuum distillate recycle (and makeup oil) was substituted for the filtered liquid constituent of the recycled oil. With the changes of the proportion of ashy recycle the total slurry catalyst in the system (added and recycled) ranged from 860 to 6345 ppm Fe with 140 to 1030 ppm Mo.

NONE

1996-11-01T23:59:59.000Z

167

Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications  

E-Print Network (OSTI)

Large-scale three-dimensional numerical simulations of the deflagration stage of a thermonuclear supernova explosion show the formation and evolution of a highly convoluted turbulent flame in a gravitational field of an expanding carbon-oxygen white dwarf. The flame dynamics is dominated by the gravity-induced Rayleigh-Taylor instability that controls the burning rate. The thermonuclear deflagration releases enough energy to produce a healthy explosion. The turbulent flame, however, leaves large amounts of unburnt and partially burnt material near the star center, whereas observations imply these materials only in outer layers. This disagreement could be resolved if the deflagration triggers a detonation.

V. N. Gamezo; A. M. Khokhlov; E. S. Oran; A. Y. Chtchelkanova; R. O. Rosenberg

2002-12-03T23:59:59.000Z

168

Two-Stage Magnetization Reversal in Exchange Biased Bilayers  

SciTech Connect

MnF{sub 2}/Fe bilayers exhibit asymmetric magnetization reversal that occurs by coherent rotation on one side of the loop and by nucleation and propagation of domain walls on the other side of the loop. Here, we show by polarized neutron reflectometry, magnetization, and magnetotransport measurements that for samples with good crystalline ''quality'' the rotation is a two-stage process, due to coherent rotation to a stable state perpendicular to the cooling field direction. The result is remarkably asymmetrically shaped hysteresis loops.

Leighton, C.; Fitzsimmons, M. R.; Yashar, P.; Hoffmann, A.; Nogues, J.; Dura, J.; Majkrzak, C. F.; Schuller, Ivan K.

2001-05-07T23:59:59.000Z

169

Effects of hydroelectric turbine passage on fish early life stages  

SciTech Connect

Turbine-passage mortality has been studied extensively for juveniles and adults of migratory fish species, but few studies have directly quantified mortality of fish eggs and larvae. An analysis of literature relating to component stresses of turbine passage (i.e., pressure changes, blade contact, and shear) indicates that mortality of early life stages of fish would be relatively low at low-head, bulb turbine installations. The shear forces and pressure regimes normally experienced are insufficient to cause high mortality rates. The probability of contact with turbine blades is related to the size of the fish; less than 5% of entrained ichthyoplankton would be killed by the blades in a bulb turbine. Other sources of mortality (e.g., cavitation and entrainment of fish acclimated to deep water) are controlled by operation of the facility and thus are mitigable. Because turbine-passage mortality among fish early life stages can be very difficult to estimate directly, it may be more fruitful to base the need for mitigation at any given site on detailed knowledge of turbine characteristics and the susceptibility of the fish community to entrainment. 7 refs., 1 fig.

Cada, G.F.

1991-01-01T23:59:59.000Z

170

Models of the Solar Vicinity: The Metal Rich Stage  

E-Print Network (OSTI)

I present a review of chemical evolution models of the solar neighborhood. I give special attention to the necessary ingredients to reproduce the observed [Xi/Fe] ratios in nearby metal and super metal rich stars, and to the chemical properties of the solar vicinity focusing on [Fe/H] > -0.1. I suggest that the observed abundance trends are due to material synthesized and ejected by intermediate mass stars with solar metallicity in the AGB stage, and also by massive stars with (super) solar metallicity in the stellar wind and supernovae stages. The required tool to build chemical evolution models that reach super-solar metallicities is the computation of stellar yields for stellar metallicities higher than the initial solar value. Based on these models it might be possible to estimate the importance of merger events in the recent history of the Galactic disk as well as the relevance of radial stellar migration from the inner to the outer regions of the Galaxy. I also present a short review of the photospheric solar abundances and their relation with the initial solar abundances.

L. Carigi

2006-12-01T23:59:59.000Z

171

The prospects for electric and hybrid electric vehicles: Second-stage results of a two-stage Delphi study  

SciTech Connect

This study was conducted to collect information for a technical and economic assessment of electric (EV) and hybrid (HEV) vehicles. The first-stage worldwide survey was completed in fall 1994, while the second-stage was completed by summer 1995. The paper reports results from the second round of the survey and major differences between the two rounds. This second-stage international survey obtained information from 93 expert respondents from the automotive technology field. Key results: EVs will penetrate the market first, followed by internal combustion engine HEVs, while gas turbine and fuel cell HEVs will come after 2020. By 2020, EVs and internal combustion engine HEVs will have a 15% share of the new vehicle market; they will also cost 18-50% more and will be slightly inferior to 1993 gasoline cars. AC induction motor is projected to be superior to DC and DC brushless motors by 2020, although the DC motor will be less expensive in 2000. DC brushless motors are projected to be the most expensive. Though generally declining, battery costs will remain high. EVs are believed to be effective in reducing urban emissions; however, their costs must be reduced drastically. Petroleum is expected to be the predominant fuel for hybrid vehicles through 2020. Mean energy equivalent fuel economy of electric drivetrain vehicles is projected to be 20-40% greater than for conventional vehicles in 2000, and to rise a few percents during the projection period. Respondents anticipate only a 16% increase in conventional vehicle fuel economy from 2000 to 2020.

Ng, H.K.; Anderson, J.L.; Santini, D.J.; Vyas, A.D.

1996-08-01T23:59:59.000Z

172

Along the Laser Beampath  

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

3 20 | Next | Last Back to Index Switchyards The 30-meter (98 feet)-high switchyards are designed for convenient access and maintenance. The pedestrian and equipment platforms...

173

History  

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

Index Switchyard Construction The switchyards' support structures are built to resist vibration. They are firmly anchored to the building's reinforced concrete walls, which are 0.6...

174

E-Print Network 3.0 - ares-i upper stage Sample Search Results  

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

2008 Summary: stage engine would be added to Ares I-Y. For the Upper Stage (US), the production line at MSFC would... engines), eliminating Ares I-Y flight test, accelerating...

175

E-Print Network 3.0 - assessing cancer stage Sample Search Results  

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

cancer stage Search Powered by Explorit Topic List Advanced Search Sample search results for: assessing cancer stage Page: << < 1 2 3 4 5 > >> 1 Risk Assessment of Breast and...

176

On complexity of Shmoys - Swamy class of two-stage linear ...  

E-Print Network (OSTI)

Jul 28, 2006 ... We consider a class of two-stage linear stochastic programming problems, ..... the second-stage cost associated with (x?,r?) is greater than the ...

2006-07-28T23:59:59.000Z

177

Reliable p-median facility location problem: two-stage robust models ...  

E-Print Network (OSTI)

plane method in the two-stage facility location problem and power system scheduling ... (ii) Because of the modeling advantages of two-stage RO, we consider real ...... Robust Unit Commitment Problem with Demand Response and Wind.

2012-12-18T23:59:59.000Z

178

E-Print Network 3.0 - advanced unresectable stage Sample Search...  

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

stage Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced unresectable stage Page: << < 1 2 3 4 5 > >> 1 Welcome to the second issue of the...

179

E-Print Network 3.0 - automated sleep-wake staging Sample Search...  

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

for: automated sleep-wake staging Page: << < 1 2 3 4 5 > >> 1 Uncovering the Genetic Landscape for Multiple Sleep-Wake Traits Summary: fragmentation (e.g. more stage shifts,...

180

The Parameter Optimization and Analysis of a Multi-Stage Tower Type of Solar Desalination Unit  

Science Journals Connector (OSTI)

After the analysis of the multi-stage tower type of solar desalination unit[1], the unit is optimized...

Chen Ziqian; He Kaiyan; Zheng Hongfei…

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

A two-stage scheme for text detection in video images  

Science Journals Connector (OSTI)

This paper proposes a two-stage system for text detection in video images. In the first stage, text lines are detected based on the edge map of the image leading in a high recall rate with low computational time expenses. In the second stage, the result ... Keywords: Content-based indexing, SVM, Text detection, Video OCR

Marios Anthimopoulos; Basilis Gatos; Ioannis Pratikakis

2010-09-01T23:59:59.000Z

182

Physics on Stage: Física en Acción increases the public's awareness of science  

Science Journals Connector (OSTI)

Physics on Stage: Física en Acción increases the public's awareness of science Competition: Winner takes a trip to CERN Ireland: TruePhysics makes life simpler Czech Republic: Technology fun day highlights demand for new science centre Literary Festival: Physicists visit Hay while the Sun shines Science on Stage: Science takes stage in Germany National Convention: NSTA connects science to world Forthcoming Events

183

Staged Self-Assembly: Nanomanufacture of Arbitrary Shapes with O(1) Glues  

E-Print Network (OSTI)

Staged Self-Assembly: Nanomanufacture of Arbitrary Shapes with O(1) Glues Erik D. Demaine Martin L We introduce staged self-assembly of Wang tiles, where tiles can be added dynamically in sequence- neering. Staging allows us to break through the traditional lower bounds in tile self-assembly by encoding

Demaine, Erik

184

Staged Self-Assembly: Nanomanufacture of Arbitrary Shapes with O(1) Glues  

E-Print Network (OSTI)

Staged Self-Assembly: Nanomanufacture of Arbitrary Shapes with O(1) Glues Erik D. Demaine Martin L We introduce staged self-assembly of Wang tiles, where tiles can be added dynamically in sequence-based bioengineering. Staging allows us to break through the traditional lower bounds in tile self-assembly by encoding

Demaine, Erik

185

Modeling, Optimization, and Experimentation with a Two Stage Mixed Gas Cascaded Joule Thomson Cryoprobe  

E-Print Network (OSTI)

Modeling, Optimization, and Experimentation with a Two Stage Mixed Gas Cascaded Joule Thomson-stage Mixed Gas Joule Thomson (MGJT) cycle is capable of providing compact cooling for cryoprobes". A computational model of a commercially available two stage MGJT cryoprobe donated by American Medical Systems

Wisconsin at Madison, University of

186

A Nested Two Stage Game-Based Optimization Framework in Mobile Cloud Computing System  

E-Print Network (OSTI)

A Nested Two Stage Game-Based Optimization Framework in Mobile Cloud Computing System Yanzhi Wang and the cloud computing facilities. We provide a nested two stage game formulation for the MCC interaction as well as the cloud computing controller in the nested two stage game using convex optimization technique

Pedram, Massoud

187

Equilibrium-staged separations: A bibliography update (1998)  

SciTech Connect

This article continues a series of annual bibliographic updates of the published literature (since 1980) on distillation and other equilibrium-staged separation processes. This paper provides a useful and quick reference source to the 1998 journal literature (from the 50 most important chemical engineering journals) for researchers in this area. The following topics are included: Distillation Theory and Design Methods; Distillation Control and Applications; Column Design Data; Absorption Reactions and Absorber Design; Cooling Towers; Liquid-Liquid Extraction; and Supercritical Extraction. A complete bibliographic listing of the chemical engineering journal literature from 1959 to 1998 (with subsequent 6 monthly updates) is available on a CD-ROM database, and full details can be obtained from the author.

Ray, M.S.

1999-12-01T23:59:59.000Z

188

Model atmospheres for novae during the early stages  

SciTech Connect

Continuum and line blanketing models for the photospheres of novae in the early stages of their outbursts are presented. The expanding envelopes are characterized by a very slow increase of density with decreasing radius which leads to very large geometrical extensions and large temperature differences between the inner and outer parts. The spectra show a large IR excess and a small Balmer jump which may be either in absorption or in emission. For the parameters considered (T{sub eff} = 10{sup 4}, 1.5 {times} 10{sup 4}, 2 {times} 10{sup 4}K, R = 10{sup 11} cm, solar composition), most lines are in absorption. The effects of both modifications in the temperature structure (e.g. by heating from shock fronts) and changes in the abundances of the heavy elements on the emergent spectra are briefly discussed. 13 refs., 11 figs.

Wehrse, R.; Hauschildt, P.H. (Heidelberg Univ. (Germany, F.R.). Inst. fuer Theoretische Astrophysik); Shaviv, G. (Technion-Israel Inst. of Tech., Haifa (Israel). Dept. of Physics); Starrfield, S. (Los Alamos National Lab., NM (USA) Arizona State Univ., Tempe, AZ (USA). Dept. of Physics)

1989-01-01T23:59:59.000Z

189

Self-regulating fuel staging port for turbine combustor  

DOE Patents (OSTI)

A port (60) for axially staging fuel and air into a combustion gas flow path 28 of a turbine combustor (10A). A port enclosure (63) forms an air path through a combustor wall (30). Fuel injectors (64) in the enclosure provide convergent fuel streams (72) that oppose each other, thus converting velocity pressure to static pressure. This forms a flow stagnation zone (74) that acts as a valve on airflow (40, 41) through the port, in which the air outflow (41) is inversely proportion to the fuel flow (25). The fuel flow rate is controlled (65) in proportion to engine load. At high loads, more fuel and less air flow through the port, making more air available to the premixing assemblies (36).

Van Nieuwenhuizen, William F.; Fox, Timothy A.; Williams, Steven

2014-07-08T23:59:59.000Z

190

Integrated solar upper stage (ISUS) space demonstration design  

Science Journals Connector (OSTI)

High temperature solar thermal propulsion/power systems will enable the placement of higher power satellite systems launched from smaller less expensive launch vehicles. The on-going Integrated Solar Upper Stage (ISUS) Program sponsored by Phillips Laboratory is one such solar thermal system. A system test of an engine ground test configuration of ISUS is planned for Spring 1997. The next step in the development of the ISUS system will be a flight demonstration mission. This paper details the conceptual designs for two potential ISUS space demonstration configurations. These designs were developed with a design-to-cost philosophy for a LEO (low Earth orbit) to GEO (geosynchronous equatorial orbit) and LEO to HEEO (highly elliptical Earth orbit) flight demonstration missions. Design considerations included packaging within the selected launch vehicle fairings (Pegasus XL and SSLV Taurus) system performance propellant selection ( H 2 CH 4 or NH 3 ) and 100–150 watts of power production using thermionic diodes.

Patrick Frye

1997-01-01T23:59:59.000Z

191

Development of Single Stage Stirling Cooler for Space Use  

Science Journals Connector (OSTI)

A single?stage Stirling cooler has been developed and tested for space applications which include instrument or detector cooling and a supplemental cooler for the cryogenic system. The mechanical cooler is a free displacer type and consists of a compressor a cold head and a connecting tube. The features of this cooler are a moving cylinder clearance seal by diaphragm spring twin pole magnet system and pneumatically driven displacer. The typical cooling power is 2 W at 80 K and the input power to the cooler is 50 W without driver electronics. The total weight of the cooler is 4.2 kg. The engineering and the flight models of the cooler have been fabricated and evaluated to verify the capability for three space missions. This paper describes the design of the cooler and the results from verification tests including cooler performance test thermal vacuum test vibration test and lifetime test.

K. Narasaki; S. Tsunematsu; K. Kanao; K. Otsuka; S. Hoshika; K. Fujioka; K. Tsurumi; M. Hirabayashi

2006-01-01T23:59:59.000Z

192

Next stages in HDR technology development. [Hot Dry Rock (HDR)  

SciTech Connect

Twenty years of research and development have brought HDR heat mining technology from the purely conceptual stage to the establishment of an engineering-scale heat mine at Fenton Hill, NM. In April 1992, a long-term flow test (LTFT) of the HDR reservoir at Fenton Hill was begun. The test was carried out under steady-state conditions on a continuous basis for four months, but a major equipment failure in late July forced a temporary suspension of operations. Even this short test provided valuable information and extremely encouraging results as summarized below: There was no indication of thermal drawdown of the reservoir. There was evidence of increasing access to hot rock with time. Water consumption was in the rangki of 10--12%. Measured pumping costs were $0.003 per kilowatt of energy produced. Temperature logs conducted in the reservoir production zone during and after the flow test confirmed the fact that there was no decline in the average temperature of the fluid being produced from the reservoir. In fact, tracer testing showed that the fluid was taking more indirect pathways and thus contacting a greater amount of hot rock as the test progressed. Water usage quickly dropped to a level of 10--15 gallons per minute, an amount equivalent to about 10--12% of the injected fluid volume. At a conversion rate of 10--15%, these would translate to effective fuel costs'' of 2--3[cents] per kilowatt hour of electricity production potential. The completion of the LTFT will set the stage for commercialization of HDR but will not bring HDR technology to maturity. Relatively samples extensions of the current technology may bring significant improvements in efficiency, and these should be rapidly investigated. In the longer run, advanced operational concepts could further improve the efficiency of HDR energy extraction and may even offer the possibility of cogeneration schemes which solve both energy and water problems throughout the world.

Duchane, D.V.

1993-01-01T23:59:59.000Z

193

Refining intensity, energy consumption, and pulp quality in two-stage chip refining  

SciTech Connect

This paper reports on thermomechanical pulps produced in two pilot plant installations. Both installations were conventional two-stage systems in which the first stage was pressurized and the second was atmospheric. At a given specific energy, pulp quality was improved. Alternatively, for a given pulp quality, the energy consumption was reduced when refining in the first stage was carried out at a high refining intensity. High refining intensity was reached by operating the first stage either at a high rotational speed or low consistency. There were indications that these benefits could be enhanced if the second stage were operated at a low refining intensity.

Miles, K.B.; May, W.D.; Karnis, A. (Pulp and Paper Research Inst. of Canada, 570 St. John's Boulevard, Pointe Claire, Quebec H9R 3J9 (CA))

1991-03-01T23:59:59.000Z

194

Alternative Fuels Data Center: Los Angeles' Sets the Stage for Plug-In  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Los Angeles' Sets the Los Angeles' Sets the Stage for Plug-In Electric Vehicles to someone by E-mail Share Alternative Fuels Data Center: Los Angeles' Sets the Stage for Plug-In Electric Vehicles on Facebook Tweet about Alternative Fuels Data Center: Los Angeles' Sets the Stage for Plug-In Electric Vehicles on Twitter Bookmark Alternative Fuels Data Center: Los Angeles' Sets the Stage for Plug-In Electric Vehicles on Google Bookmark Alternative Fuels Data Center: Los Angeles' Sets the Stage for Plug-In Electric Vehicles on Delicious Rank Alternative Fuels Data Center: Los Angeles' Sets the Stage for Plug-In Electric Vehicles on Digg Find More places to share Alternative Fuels Data Center: Los Angeles' Sets the Stage for Plug-In Electric Vehicles on AddThis.com... April 18, 2011

195

Residential oil burners with low input and two stages firing  

SciTech Connect

The residential oil burner market is currently dominated by the pressure-atomized, retention head burner. At low firing rates pressure atomizing nozzles suffer rapid fouling of the small internal passages, leading to bad spray patterns and poor combustion performance. To overcome the low input limitations of conventional burners, a low pressure air-atomized burner has been developed watch can operate at fining rates as low as 0.25 gallons of oil per hour (10 kW). In addition, the burner can be operated in a high/low fining rate mode. Field tests with this burner have been conducted at a fixed input rate of 0.35 gph (14 kW) with a side-wall vented boiler/water storage tank combination. At the test home, instrumentation was installed to measure fuel and energy flows and record trends in system temperatures. Laboratory efficiency testing with water heaters and boilers has been completed using standard single purpose and combined appliance test procedures. The tests quantify benefits due to low firing rates and other burner features. A two stage oil burner gains a strong advantage in rated efficiency while maintaining capacity for high domestic hot water and space heating loads.

Butcher, T.; Krajewski, R.; Leigh, R. [and others

1997-12-31T23:59:59.000Z

196

Two-stage crystallization of charged colloids at low supersaturations  

E-Print Network (OSTI)

We report simulations on the homogeneous liquid-fcc nucleation of charged colloids for both low and high contact energy values. As a precursor for crystal formation, we observe increased local order at the position where the crystal will form, but no correlations with the local density. Thus, the nucleation is driven by order fluctuations rather than density fluctuations. Our results also show that the transition involves two stages in both cases, first a transition liquid-bcc, followed by a bcc-hcp/fcc transition. Both transitions have to overcome free energy barriers, so that a spherical bcc-like cluster is formed first, in which the final fcc-like structure is nucleated mainly at the surface of the crystallite. This means that the bcc-fcc phase transition is a heterogeneous nucleation, even though we start from a homogeneous bulk liquid. The height of the bcc-hcp/fcc free energy barrier strongly depends on the contact energies of the colloids. For low contact energy this barrier is low, so that the bcc-hcp/fcc transition happens spontaneously. For the higher contact energy, the second barrier is too high to be crossed spontaneously by the colloidal system. However, it was possible to ratchet the system over the second barrier and to transform the bcc nuclei into the stable hcp/fcc phase. The transitions are dominated by the first liquid-bcc transition and can be described by Classical Nucleation Theory using an effective surface tension.

Kai Kratzer; Axel Arnold

2014-10-31T23:59:59.000Z

197

Peak oil: The four stages of a new idea  

Science Journals Connector (OSTI)

The present paper reviews the reactions and the path of acceptance of the theory known as “peak oil”. The theory was proposed for the first time by M.K. Hubbert in the 1950s as a way to describe the production pattern of crude oil. According to Hubbert, the production curve is “bell shaped” and approximately symmetric. Hubbert's theory was verified with good approximation for the case of oil production in the United States that peaked in 1971, and is now being applied to the worldwide oil production. It is generally believed that the global peak of oil production (“peak oil”) will take place during the first decade of the 21st century, and some analysts believe that it has already occurred in 2005 or 2006. The theory and its consequences have unpleasant social and economical implications. The present paper is not aimed at assessing the peak date but offers a discussion on the factors that affect the acceptance and the diffusion of the concept of “peak oil” with experts and with the general public. The discussion is based on a subdivision of “four stages of acceptance”, loosely patterned after a sentence by Thomas Huxley.

Ugo Bardi

2009-01-01T23:59:59.000Z

198

Thermionic converters for an Integrated Solar Upper Stage (ISUS)  

SciTech Connect

The Integrated Solar Upper Stage (ISUS) is a solar bimodal system which combines thermal propulsion and electric power generation in a single integrated system. A thermionic converter was designed and fabricated for the ISUS system. The ISUS thermionic energy converters differ from previous designs, due to the significant changes in operating temperature prior to and during an eclipse, with the emitter temperature increasing from 1,900 K to 2,200 K, and then back again. A complete thermal and electrical model was developed for a planar diode to determine optimum operating dimensions and parameters. The model includes an overall energy balance for the diode, and changes the interelectrode gap spacing due to thermal expansion of the parts as the emitter and/or collector temperatures change. Cesium pressure can be chosen from an external liquid reservoir, an integral reservoir using cesium intercalated into graphite attached to the collector heat pipe, or optimum cesium pressure. With optimum cesium pressure, the maximum efficiency increases from 14% to 16% as the emitter temperature increases from 1,900 K to 2,200 K. The improvement in efficiency is only 2% as the emitter temperature is increased. Optimum efficiency requires an external, actively controlled liquid reservoir.

Anderson, W.G.; Horner-Richardson, K. [Thermacore, Inc., Lancaster, PA (United States)

1996-12-31T23:59:59.000Z

199

Biomass waste gasification - Can be the two stage process suitable for tar reduction and power generation?  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Comparison of one stage (co-current) and two stage gasification of wood pellets. Black-Right-Pointing-Pointer Original arrangement with grate-less reactor and upward moving bed of the pellets. Black-Right-Pointing-Pointer Two stage gasification leads to drastic reduction of tar content in gas. Black-Right-Pointing-Pointer One stage gasification produces gas with higher LHV at lower overall ER. Black-Right-Pointing-Pointer Content of ammonia in gas is lower in two stage moving bed gasification. - Abstract: A pilot scale gasification unit with novel co-current, updraft arrangement in the first stage and counter-current downdraft in the second stage was developed and exploited for studying effects of two stage gasification in comparison with one stage gasification of biomass (wood pellets) on fuel gas composition and attainable gas purity. Significant producer gas parameters (gas composition, heating value, content of tar compounds, content of inorganic gas impurities) were compared for the two stage and the one stage method of the gasification arrangement with only the upward moving bed (co-current updraft). The main novel features of the gasifier conception include grate-less reactor, upward moving bed of biomass particles (e.g. pellets) by means of a screw elevator with changeable rotational speed and gradual expanding diameter of the cylindrical reactor in the part above the upper end of the screw. The gasifier concept and arrangement are considered convenient for thermal power range 100-350 kW{sub th}. The second stage of the gasifier served mainly for tar compounds destruction/reforming by increased temperature (around 950 Degree-Sign C) and for gasification reaction of the fuel gas with char. The second stage used additional combustion of the fuel gas by preheated secondary air for attaining higher temperature and faster gasification of the remaining char from the first stage. The measurements of gas composition and tar compound contents confirmed superiority of the two stage gasification system, drastic decrease of aromatic compounds with two and higher number of benzene rings by 1-2 orders. On the other hand the two stage gasification (with overall ER = 0.71) led to substantial reduction of gas heating value (LHV = 3.15 MJ/Nm{sup 3}), elevation of gas volume and increase of nitrogen content in fuel gas. The increased temperature (>950 Degree-Sign C) at the entrance to the char bed caused also substantial decrease of ammonia content in fuel gas. The char with higher content of ash leaving the second stage presented only few mass% of the inlet biomass stream.

Sulc, Jindrich; Stojdl, Jiri; Richter, Miroslav; Popelka, Jan [Faculty of the Environment, Jan Evangelista Purkyne University in Usti nad Labem, Kralova Vysina 7, 400 96 Usti nad Labem (Czech Republic); Svoboda, Karel, E-mail: svoboda@icpf.cas.cz [Faculty of the Environment, Jan Evangelista Purkyne University in Usti nad Labem, Kralova Vysina 7, 400 96 Usti nad Labem (Czech Republic); Institute of Chemical Process Fundamentals of the ASCR, v.v.i., Rozvojova 135, 165 02 Prague 6 (Czech Republic); Smetana, Jiri; Vacek, Jiri [D.S.K. Ltd., Ujezdecek - Dukla 264, 415 01 Teplice I (Czech Republic); Skoblja, Siarhei; Buryan, Petr [Dept. of Gas, Coke and Air protection, Institute of Chemical Technol., Technicka 5, 166 28 Prague 6 (Czech Republic)

2012-04-15T23:59:59.000Z

200

ARM - Publications: Science Team Meeting Documents: The life stage of deep  

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

The life stage of deep convection defined by the MSG multi-channel data and The life stage of deep convection defined by the MSG multi-channel data and rainfall type observed by PR/TRMM Inoue, Toshiro MRI/JMA The life cycle of deep convection is characterized as the cumulus/cumulonimbus type cloud classified by the method is dominant at the earlier stage and cirrus type cloud (anvil) is dominant at the decaying stage for no-split/no-merge case. We also know that convective rain is dominant at developing and mature stage, and stratiform rain is dominant at decaying stage. We studied the life cycle of deep convection in terms of cloud type using MSG ( Meteosat Second Generation) data taken every 15 minutes. The multi-channel data of MSG are use for cloud type classification. Cloud types are first classified by the split window method

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201

CX-007359: Categorical Exclusion Determination | Department of Energy  

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

359: Categorical Exclusion Determination 359: Categorical Exclusion Determination CX-007359: Categorical Exclusion Determination McNary-Horse Heaven 230-kilovolt Transmission Line Raise (Structures 15/2 to 16/3) CX(s) Applied: B1.3 Date: 12/01/2011 Location(s): Washington Offices(s): Bonneville Power Administration Bonneville Power Administration (BPA) is proposing to add six wooden prop structures to the McNary-Horse Heaven No. 1 230-kilovolt transmission line between structures 15/2-16/3. The prop structures are needed to raise the existing line so that the conductor meets the necessary Minimum Approach Distance from the orchard below. An augur truck would use existing BPA roads to access the site and install wooden poles. More Documents & Publications CX-006582: Categorical Exclusion Determination

202

CX-006582: Categorical Exclusion Determination | Department of Energy  

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

582: Categorical Exclusion Determination 582: Categorical Exclusion Determination CX-006582: Categorical Exclusion Determination Access Road Maintenance Along the McNary-Santiam 230-Kilovolt and Jones Canyon-Santiam 230-Kilovolt Transmission Line Corridors CX(s) Applied: B1.3 Date: 08/22/2011 Location(s): Wasco County, Oregon Office(s): Bonneville Power Administration Bonneville Power Administration (BPA) proposes to perform routine road maintenance activities along existing access roads, both on and off the rights-of-way. The work involves approximately 5,000 linear feet of road reconstruction or improvement work. The roadwork is needed to improve access for crews that will be maintaining the transmission line and towers within the transmission line corridor. The work will consist primarily of

203

CX-003624: Categorical Exclusion Determination | Department of Energy  

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

624: Categorical Exclusion Determination 624: Categorical Exclusion Determination CX-003624: Categorical Exclusion Determination Replacement of Twenty 22-L Structures on the Satsop-Aberdeen Number 2 230-kilovolt Transmission Line CX(s) Applied: B1.3 Date: 08/12/2010 Location(s): Gray's Harbor County, Washington Office(s): Bonneville Power Administration Replacement of twenty 22-L structures on the Satsop-Aberdeen Number 2 230-kilovolt (kV) transmission line. The project work would involve removal of the existing towers and building replacement towers, replacing insulators, and attaching the existing conductor to the new towers. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003624.pdf More Documents & Publications CX-003025: Categorical Exclusion Determination CX-001179: Categorical Exclusion Determination

204

CX-005115: Categorical Exclusion Determination | Department of Energy  

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

5: Categorical Exclusion Determination 5: Categorical Exclusion Determination CX-005115: Categorical Exclusion Determination Weld Substation Transformer Placement, Greeley, Weld County, Colorado CX(s) Applied: B4.6 Date: 01/07/2011 Location(s): Greeley, Colorado Office(s): Western Area Power Administration-Rocky Mountain Region Western Power Administration will install; one-150 megavolt-ampere transformer 230/115-kilovolt (KV2A), two-230-kilovolt power circuit breaker, four-230-kilovolt switches, one-115-kilovolt power circuit breaker, three-115-kilovolt switches, and associated bus, meter, and control equipment. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005115.pdf More Documents & Publications CX-002585: Categorical Exclusion Determination CX-008378: Categorical Exclusion Determination CX-008785

205

CX-005379: Categorical Exclusion Determination | Department of Energy  

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

5379: Categorical Exclusion Determination 5379: Categorical Exclusion Determination CX-005379: Categorical Exclusion Determination Insulator Replacement in Agricultural Lands Along the Grand Coulee-Bell Number 3/Grand Coulee-Westside No. 1 Double Circuit 230 Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 03/02/2011 Location(s): Lincoln County, Washington Office(s): Bonneville Power Administration Bonneville Power Administration (BPA) proposes to replace worn insulators on sections of the Grand Coulee-Bell Number 3/Grand Coulee-Westside Number 1 double circuit 230-kilovolt (kV) transmission line. This portion of the transmission line is located in Lincoln County, Washington, in BPA?s Spokane Operations and Maintenance District. Townships, Ranges, and Sections crossed by the proposed project are listed below.

206

CX-009230: Categorical Exclusion Determination | Department of Energy  

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

30: Categorical Exclusion Determination 30: Categorical Exclusion Determination CX-009230: Categorical Exclusion Determination Curecanti-Rifle 230 Kilovolt Transmission Line Sullivan Ranch Irrigation Water Pipeline Project Between Structures 25/5 to 26/1 CX(s) Applied: B4.9 Date: 09/28/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) proposes to grant permission to Mr. Dan Sullivan for the Sullivan Ranch Pipeline Project on Western's right-of-way (ROW) between structures 25/5 to 2611 on the Curecanti-Rifle (CCI-RFL) 230 kilovolt Transmission Line. CX-009230.pdf More Documents & Publications CX-010110: Categorical Exclusion Determination CX-010413: Categorical Exclusion Determination EIS-0442: Draft Environmental Impact Statement

207

EA-1478: Finding of No Significant Impact | Department of Energy  

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

478: Finding of No Significant Impact 478: Finding of No Significant Impact EA-1478: Finding of No Significant Impact Hoover Dam Bypass Project Phase II, Nevada Western Area Power Administration proposes to double-circuit a portion of the Hoover Dam Bypass Project PHase II (Double-Circuiting a Portion of the Hoover-Mead No. 5 and No. 7 230-kilovolt (kv) Transmission LInes with the Henderson-Mead No. 1 230-kV Transmission Line. In addition, a fiber optic cable would be placed as an overhead ground wire on the double-circuited transmission lines form the area of Hoover Dam to Mead Substation. Finding of No Significant Impact Hoover Dam Bypass Project Phase II (Double-Circuiting a Portion of the Hoover-Mead No. 5 and No. 7 230-kilovolt (kv) Transmission LInes with the Henderson-Mead No. 1 230-kV

208

CX-008380: Categorical Exclusion Determination | Department of Energy  

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

80: Categorical Exclusion Determination 80: Categorical Exclusion Determination CX-008380: Categorical Exclusion Determination Archer to Ault 230 Kilovolt Transmission Line Structure Replacement, Weld County, Colorado CX(s) Applied: B1.3 Date: 05/09/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) proposes to replace an existing three pole wood structure along the Archer to Ault 230 kilovolt (kV) transmission line. The structure is located on private land adjacent to County Road 27 northwest of the town of Nunn in Weld County, Colorado. The structure will be replaced in-kind with wood poles of the same height, hardware, configuration, and at the same location. All work will be confined to Western's right-of way easement.

209

CX-008716: Categorical Exclusion Determination | Department of Energy  

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

716: Categorical Exclusion Determination 716: Categorical Exclusion Determination CX-008716: Categorical Exclusion Determination Bonneville Power Administration (BPA) Tacoma Power Chehalis- Covington 230-Kilovolt (kV) Line/Convert Microwave Signals From Analog To Digital CX(s) Applied: B1.7 Date: 05/21/2012 Location(s): Washington, Washington, Washington Offices(s): Bonneville Power Administration The Bonneville Power Administration (BPA) and Tacoma Power (TPWR) have developed a joint plan to convert the microwave transfer trip signals on BPA's Chehalis-Covington 230 kilovolt (kV) line, which includes the 230-kV tap line to TPWR's Cowlitz Substation, from analog to digital. Microsoft Word - CX Tacoma Power Chehalis-Covington analog-digital conversion Final.docx More Documents & Publications CX-006198: Categorical Exclusion Determination

210

Categorical Exclusion Determinations: Arizona | Department of Energy  

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

Arizona Arizona Categorical Exclusion Determinations: Arizona Location Categorical Exclusion Determinations issued for actions in Arizona. DOCUMENTS AVAILABLE FOR DOWNLOAD September 13, 2013 CX-010988: Categorical Exclusion Determination High Temperature DC-Bus Capacitors Cost Reduction and Performance Improvements CX(s) Applied: B3.6, B5.15 Date: 09/13/2013 Location(s): Arizona Offices(s): National Energy Technology Laboratory August 22, 2013 CX-010882: Categorical Exclusion Determination Liberty-Parker Dam #2 230-Kilovolt Transmission Line, Optical Power Ground Wire Repair CX(s) Applied: B4.7 Date: 08/22/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region August 12, 2013 CX-010883: Categorical Exclusion Determination PHX-LOB and LIB-LOB 230-Kilovolt Double-Circuit- Replace Insulators at

211

Categorical Exclusion Determinations: Western Area Power  

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

July 25, 2012 July 25, 2012 CX-008787: Categorical Exclusion Determination Midway Substation 230 Kilovolt Upgrades El Paso County, Colorado CX(s) Applied: B4.6, B4.11 Date: 07/25/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region July 23, 2012 CX-008784: Categorical Exclusion Determination License Outgrant to Owl Creek Water District Town of Thermopolis, Hot Springs County, Wyoming CX(s) Applied: B4.9 Date: 07/23/2012 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region July 3, 2012 CX-008779: Categorical Exclusion Determination Curecanti-Poncha-Canon City West-Midway 230-Kilovolt Transmission Line Road Maintenance Gunnison, Chaffee, Fremont, Pueblo, and El Paso Counties, Colorado CX(s) Applied: B1.3

212

Categorical Exclusion Determinations: Washington | Department of Energy  

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

June 14, 2011 June 14, 2011 CX-006253: Categorical Exclusion Determination North Bonneville-Ross #1 230-Kilovolt, North Bonneville-Troutdale #2 230-Kilovolt Transmission Line Maintenance CX(s) Applied: B4.13 Date: 06/14/2011 Location(s): Clark County, Washington Office(s): Bonneville Power Administration June 10, 2011 CX-006198: Categorical Exclusion Determination South Tacoma - Frederickson Power Fiber Project CX(s) Applied: B4.7 Date: 06/10/2011 Location(s): Pierce County, Washington Office(s): Bonneville Power Administration June 9, 2011 CX-006197: Categorical Exclusion Determination Omak Area 3G Radio Site Upgrades CX(s) Applied: B1.19 Date: 06/09/2011 Location(s): Okanogan, Washington Office(s): Bonneville Power Administration June 8, 2011 CX-006049: Categorical Exclusion Determination

213

CX-006257: Categorical Exclusion Determination | Department of Energy  

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

257: Categorical Exclusion Determination 257: Categorical Exclusion Determination CX-006257: Categorical Exclusion Determination Ponderosa 500-230 Kilovolt (kV) Transformer Addition CX(s) Applied: B4.6 Date: 06/29/2011 Location(s): Prineville, Oregon Office(s): Bonneville Power Administration The proposed project includes modification of existing substation equipment, installation of a new 500-230-kilovolt (kV) transformer, and an eight acre expansion northwest of the existing yard. The yard expansion is to facilitate the addition of a new 230-kV 2-bay breaker-and-a-half bus, four bays and the new transformer. A new control house would be built to accommodate controls and protection for the new equipment. The existing road to the south would be modified and graveled. All activities would occur on previously disturbed soils within Bonneville Power

214

CX-006819: Categorical Exclusion Determination | Department of Energy  

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

19: Categorical Exclusion Determination 19: Categorical Exclusion Determination CX-006819: Categorical Exclusion Determination Replace Aging Wood Poles on Trans Alta?s Centralia Tap to Chehalis-Covington No. 1 230-Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 09/16/2011 Location(s): Lewis County, Washington Office(s): Bonneville Power Administration Bonneville Power Administration (BPA) will perform routine maintenance and replacement of aging wood pole transmission line support structures, including all hardware and guy support structures on the Centralia Tap to Chehalis-Covington No. 1 230-kilovolt (kV) transmission line. The transmission line is owned and operated by Trans Alta and BPA maintains the line at Trans Alta?s expense. Trans Alta is contracting with BPA to complete the maintenance work.

215

EIS-0308: Record of Decision and Floodplain Statement | Department of  

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

8: Record of Decision and Floodplain Statement 8: Record of Decision and Floodplain Statement EIS-0308: Record of Decision and Floodplain Statement Interconnection of the Southpoint Power Plant with the Wester Area Power Administration's Parker-Davis No. 1 and No. 2, 230-kilovolt Transmission Lines Western has determined that no significant environmental impacts will result from construction, operation and maintenance of Calpine Corporation's Southpoint Power Plant, the two natural gas pipelines, or the approximately 7 miles of high voltage transmission lines, or from the upgrade of the Parker-Davis No. 1 230-kilovolt (kV) transmission line. Therefore, Western has decided to provide an interconnection with the plant and Western's transmission system in west central Arizona. However, Calpine has yet to obtain a permit from the Bureau of Land Management (BLM)

216

EIS-0294: Record of Decision | Department of Energy  

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

4: Record of Decision 4: Record of Decision EIS-0294: Record of Decision Interconnection of the Sutter Power Project With the Western Area Power Administration's Keswick-Elverta/Olinda-Elverta 230-Kilovolt Double-Circuit Transmission Line (June 1999) Record of Decision for the Interconnection of the Sutter Power Project With the Western Area Power Administration's Keswick-Elverta/Olinda-Elverta 230-Kilovolt Double-Circuit Transmission Line. The Western Area Power Administration (Western) prepared this Record of Decision in response to a request submitted to Western for a direct interconnection of Calpine Corporation's (Calpine) proposed Sutter Power Project (SPP) with Western's electric transmission system. Western Area Power Administration Record of Decision for the Interconnection of the Sutter Power Project With the Western Area Power

217

CX-008779: Categorical Exclusion Determination | Department of Energy  

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

9: Categorical Exclusion Determination 9: Categorical Exclusion Determination CX-008779: Categorical Exclusion Determination Curecanti-Poncha-Canon City West-Midway 230-Kilovolt Transmission Line Road Maintenance Gunnison, Chaffee, Fremont, Pueblo, and El Paso Counties, Colorado CX(s) Applied: B1.3 Date: 07/03/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) proposes to maintain sections of its access roads along the Curecanti (CCI)- Poncha (PON)- Canon City West (CCW) Midway (MID) 230-kilovolt transmission line segments. CX-008779.pdf More Documents & Publications CX-008778: Categorical Exclusion Determination CX-010109: Categorical Exclusion Determination EIS-0442: Draft Environmental Impact Statement

218

CX-008399: Categorical Exclusion Determination | Department of Energy  

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

99: Categorical Exclusion Determination 99: Categorical Exclusion Determination CX-008399: Categorical Exclusion Determination Erosion Control Measures Structure No. 110-3 Dave Johnston to Stegall 230 Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 03/29/2012 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) will repair erosion damage at Structure No. 110-3 of the Dave Johnston to Stegall 230 kilovolt (kV) transmission line located near southeast Torrington. Wyoming. Flood flows along the North Platte River in 2011 migrated the active channel bank towards Structure No. 110-3. The potential exists for future channel meandering to underline the foundation supports of the 80 foot steel lattice structure. To mitigate this potential, Western proposes to

219

Categorical Exclusion Determinations: Western Area Power  

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

Desert Southwest Region Desert Southwest Region Categorical Exclusion Determinations: Western Area Power Administration-Desert Southwest Region Categorical Exclusion Determinations issued by Western Area Power Administration-Desert Southwest Region. DOCUMENTS AVAILABLE FOR DOWNLOAD August 22, 2013 CX-010882: Categorical Exclusion Determination Liberty-Parker Dam #2 230-Kilovolt Transmission Line, Optical Power Ground Wire Repair CX(s) Applied: B4.7 Date: 08/22/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region August 12, 2013 CX-010883: Categorical Exclusion Determination PHX-LOB and LIB-LOB 230-Kilovolt Double-Circuit- Replace Insulators at Structure No. 28-2 With NCI Type Polymers CX(s) Applied: B1.3 Date: 08/12/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

220

CX-001048: Categorical Exclusion Determination | Department of Energy  

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

48: Categorical Exclusion Determination 48: Categorical Exclusion Determination CX-001048: Categorical Exclusion Determination Lower Mid-Columbia/Midway - Vantage 230-Kilovolt Transmission Line Upgrade Project CX(s) Applied: B4.6, B4.7, B4.13 Date: 02/23/2010 Location(s): Grant County, Washington Office(s): Bonneville Power Administration Upgrade the lower Mid-Columbia area 230-kilovolt (kV) transmission system in Grant and Benton counties, Washington. The project requires re-conductoring 10.6 miles of the Midway-Vantage 230-kV transmission line, re-terminating the existing Vantage-Columbia 230-kV line at the Vantage Substation, and installing related transmission and communications equipment within the Midway and Vantage substations. Upgrades are needed to mitigate thermal overloads due to Columbia River flow management changes

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

CX-003194: Categorical Exclusion Determination | Department of Energy  

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

194: Categorical Exclusion Determination 194: Categorical Exclusion Determination CX-003194: Categorical Exclusion Determination Installation of a Mid-Span Interset Structure between Structures 141/1 and 141/2 on the Existing Davis Dam-Prescott 230-Kilovolt Transmission Line in Yavapai County, Arizona CX(s) Applied: B4.13 Date: 06/10/2010 Location(s): Yavapai County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region Western Area Power Administration plans to install a mid-span (interset) structure between structures 141/1 and 141/2 of the existing Davis Dam-Prescott 230-kilovolt transmission line. The proposed undertaking entails constructing a 100-foot tall steel H-frame near the midpoint of the 1900-foot-long span between two lattice tower structures. The H-frame will

222

CX-005852: Categorical Exclusion Determination | Department of Energy  

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

852: Categorical Exclusion Determination 852: Categorical Exclusion Determination CX-005852: Categorical Exclusion Determination Stegall-Wayside 230 Kilovolt Access Road Extension CX(s) Applied: B1.13 Date: 05/05/2011 Location(s): Dawes County, Wyoming Office(s): Western Area Power Administration-Rocky Mountain Region Western Power Administration plans to construct an extension of an existing access road between structures 111-1 and 111-2 on the Stegall-Wayside 230 kilovolt transmission line. This road construction will provide access for removal of previously felled hazard trees along the transmission line right-of-way on private land. The project will extend the existing access road to the south from its present terminus at structure 111-1 and terminate before reaching structure 111-2. DOCUMENT(S) AVAILABLE FOR DOWNLOAD

223

GAISUS-1 thermionic converter for the integrated solar upper stage  

SciTech Connect

The Integrated Solar Upper Stage (ISUS) system is a compact orbital transfer vehicle which generates thrust to boost payloads from LEO to higher orbits. It does this by collecting and concentrating solar flux into a sensible thermal storage, graphite receiver which is used to heat hydrogen propellant to temperatures of up to 2500 K. The ISUS receiver also radiates heat into an array of thermionic converters which produce electrical power. The GAISUS-1 thermionic converter is a first generation planar converter designed to produce electrical power when coupled with the ISUS receiver. GAISUS-1 will deliver over 31 W{sub e} at 1900 K. A wrought Re hotshoe accepts radiant heat from the receiver. The back side of the hotshoe forms the emitting surface of the converter. Special attention was paid to optimize the electrical and thermal losses experienced through the sleeve. Triple and single sleeve geometries were thermally modeled and evaluated, resulting in the selection of a single sleeve design. A high temperature metal/ceramic seal isolates the emitter sleeve from the collector. A Nb collector is used and is an integral part of a Nb/Na heat pipe. The heat pipe transports reject heat from the collector surface to a thermal radiator (condenser) portion of the heat pipe. The converter utilizes an integral graphite Cs reservoir. This type of reservoir automatically produces a rise in Cs pressure in response to a rise in emitter/collector temperatures. This Cs pressure feedback mechanism insures adequate Cs coverage of the emitter over a broad range of operating conditions (temperatures).

Begg, L.L.; Heffernan, T.F.; Horner, M.H. [General Atomics, San Diego, CA (United States)

1997-12-31T23:59:59.000Z

224

Experiments and Modeling of Two-Stage Combustion in Low-Emissions Diesel Engines  

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

Two-stage combustion is investigated to achieve low noise, low emissions, and high efficiency operation using engine experiments and a multi-dimensional CFD code coupled with detailed chemistry and a Multi-Objective Genetic Algorithm (KIVA-CHEMKIN-MOGA code). The first stage is premixed combustion and the second stage is diffusion combustion under high temperature and low oxygen concentration conditions and operation at light load (nominal 5.5 bar IMEP and 2000 rpm).

225

E-Print Network 3.0 - advanced stage neuroblastoma Sample Search...  

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

neuroblastoma Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced stage neuroblastoma Page: << < 1 2 3 4 5 > >> 1 ORIGINAL ARTICLE Inhibition...

226

Cell Division Stage in C. elegans Imaged Using Third Harmonic Generation Microscopy  

Science Journals Connector (OSTI)

C. elegans embryogenesis, at the cell division stage, was imaged using third harmonic generation microscopy employing ultrashort pulsed lasers at 1028nm and 1550nm. This technique...

Aviles-Espinosa, Rodrigo; Tserevelakis, G J; Santos, Susana I c o; Filippidis, G; Krmpot, A J; Vlachos, M; Tavernarakis, N; Brodschelm, A; Kaenders, W; Artigas, David; Loza-Alvarez, Pablo

227

Staging Tudor Royalty: Religious Politics in Stuart Historical Drama (1603-1607).  

E-Print Network (OSTI)

??Staging Tudor Royalty: Religious Politics in Stuart Historical Drama (1603–1607) examines the plays and pageantry about the Tudor royals in the context of three major… (more)

Schofield, Scott James

2011-01-01T23:59:59.000Z

228

Science on Stage: Science in Action competition hits the heights in Madrid  

Science Journals Connector (OSTI)

Science on Stage: Science in Action competition hits the heights in Madrid Conference: New year brings ASE conference Exhibition: BETT 2007 sells hard and plays hard

229

Pulse generators based on air-insulated linear-transformer-driver stages  

Science Journals Connector (OSTI)

In this paper we present the design and test results of pulse generators based on air-insulated linear-transformer-driver stages that drive a vacuum transmission line. A custom designed unit, referred to as a capacitor block, was developed for use as a main structural element of the transformer stages. It incorporates two capacitors GA 35426 (40 nF, 100 kV) and a multichannel multigap gas switch. Two types of stages were developed: (1) stage LTD-20 with four modules in parallel and five capacitor blocks in each module (in tests of this stage current amplitude up to 850 kA with ?140??ns rise time was obtained on a 0.05???? load at 100 kV charging voltage); (2) stage LTD-4 with two modules in parallel and two capacitor blocks in each module. Several installations were built on the base of these stages, including a linear transformer, consisting of two identical LTD-20 stages in series, and a high power electron accelerator on the base of LTD-4 stages. The design, tests results, and main problems are presented and discussed in this paper for these installations.

B. M. Kovalchuk; A. V. Kharlov; E. V. Kumpyak; A. A. Zherlitsyn

2013-05-16T23:59:59.000Z

230

The comparative digestibility and nutritive value of sorghum silages harvested at different stages of maturity  

E-Print Network (OSTI)

or stage at which to harvest a silage crop~ it is desirable to have both maximum yields of dry mtter and sufficient amisture in the fbraga to insure good heeping conditions in the silo Scam idea of the optimum stage of maturity for a silage crop can... or stage at which to harvest a silage crop~ it is desirable to have both maximum yields of dry mtter and sufficient amisture in the fbraga to insure good heeping conditions in the silo Scam idea of the optimum stage of maturity for a silage crop can...

Helm, Raymond E

2012-06-07T23:59:59.000Z

231

The initial stages of heavy-ion collisions in the Color Glass Condensate framework  

E-Print Network (OSTI)

In this short review, we present the description of the early stages of a heavy ion collision at high energy in the Color Glass Condensate framework.

Francois Gelis

2013-12-19T23:59:59.000Z

232

niscent of the early stages of the industrial revolution, when inefficient factories pollut-  

E-Print Network (OSTI)

niscent of the early stages of the industrial revolution, when inefficient factories pollut- ed environment.However,agreenerrevolution is also needed -- a revolution that incorpo- rates accumulated

Wolfe, Cecily J.

233

Categorical Exclusions 2012  

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

2 Garrison Switchyard Transmission Line Reconstruction (804kb pdf) Prairie Rose Transmission Line Crossing (68...

234

EIS-0400: EPA Notice of Availability of Final Environmental Impact Statement  

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

Granby Pumping Plant Switchyard-Windy Gap Substation Transmission Line Rebuild Project, Grand County, CO

235

Continuous flow multi-stage microfluidic reactors via hydrodynamic microparticle railing{  

E-Print Network (OSTI)

Continuous flow multi-stage microfluidic reactors via hydrodynamic microparticle railing{ Ryan D-at-a-time). Microfluidic processors that enable multi-stage fluidic reactions with suspended microparticles (e-on-a-chip technologies. Here we present a single-layer microfluidic reactor that utilizes a microfluidic railing

Lin, Liwei

236

Dynamic Model for an Oxygen-Staged Slagging Entrained Flow Gasifier  

Science Journals Connector (OSTI)

The temperature distribution simulation results also showed that staged oxygen feeding can reduce the temperature near the main burner significantly, therefore extending the lifetime of the burner compared with that of without staged oxygen feed. ... Problems such as a short lifetime of burners and refractory walls and fouling and corrosion in syngas coolers have to be addressed in order to further improve the technology. ...

Zhiwei Yang; Zhe Wang; Yuxin Wu; Jihong Wang; Junfu Lu; Zheng Li; Weidou Ni

2011-07-05T23:59:59.000Z

237

Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations using the Harmonic  

E-Print Network (OSTI)

Three-Dimensional Unsteady Multi-stage Turbomachinery Simulations using the Harmonic Balance-stage turbomachinery problems modeled by the Unsteady Reynolds-Averaged Navier-Stokes (URANS) equations. This time. Turbomachinery flows are naturally unsteady mainly due to the relative motion of rotors and stators

Jameson, Antony

238

Investigations to site a radioactive waste repository in Cumbria: Evidence against proceeding to MRWS Stage 4  

E-Print Network (OSTI)

Investigations to site a radioactive waste repository in Cumbria: Evidence against proceeding to MRWS Stage 4 Radioactive waste repository in Cumbria: Evidence against proceeding to MRWS Stage 4 s the UK radioactive waste legacy comprises difficult material which is complex, of mixed origin

239

New Report Highlights Trends in Offshore Wind with 14 Projects Currently In Advanced Stages of Development  

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

The Energy Department today released a new report showing progress for the United States offshore wind energy market over the past year, including two projects that have moved into the initial stages of construction, and 14 projects that are in the advanced stages of development– together representing nearly 4,900 megawatts of potential offshore wind energy capacity for the U.S.

240

A two-stage model for incidence and prevalence in point-level spatial count data  

E-Print Network (OSTI)

A two-stage model for incidence and prevalence in point-level spatial count data Virginia Recta about the underlying data generating process. We utilize a two-stage spatial generalized linear mixed and real data from an ecological field survey. 1 Introduction Spatial count data arise frequently

Haran, Murali

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Estimates of the duration of the early and late stage of gambiense sleeping sickness  

E-Print Network (OSTI)

vs ?1 per 1000 person-months, Kruskal-Wallis test). P t e r t( ) ( )= ? 1 (3) Fitted interval-censored stage 1 survival modelsigure 3 Fitted interval-censored stage 1 survival models. For comparison purposes, the figure also superimposes a Kaplan...

Checchi, Francesco; Filipe, Joao A N; Haydon, Daniel T; Chandramohan, Daniel; Chappuis, Francois

2008-02-08T23:59:59.000Z

242

Model reduction applied to multi-stage assemblies of bladed disks  

E-Print Network (OSTI)

consisted in modelling separately each stage of the assembly of bladed disks that compose the rotor of a jetModel reduction applied to multi-stage assemblies of bladed disks A. Sternch¨uss, E. Balm, France e-mail: arnaud.sternchuss@ecp.fr P. Jean, J.-P. Lombard Snecma (Safran Group) Rond-point Ren

Boyer, Edmond

243

Accounting for rotation in a multi-stage cyclo-symmetric model -a case study  

E-Print Network (OSTI)

. Real rotors are assemblies of stages that have different number of sectors. This mo- tivated predictions of full rotor dynamics. The present paper summarizes the theory and shows that this new ability-symmetric geometries. Classically cyclic-symmetry [1, 2] considers single stage vibration or assumes the whole rotor

Boyer, Edmond

244

Ice-free conditions in Sweden during Marine Oxygen Isotope Stage 3? BARBARA WOHLFARTH  

E-Print Network (OSTI)

Ice-free conditions in Sweden during Marine Oxygen Isotope Stage 3? BARBARA WOHLFARTH BOREAS Wohlfarth, B. 2010 (April): Ice-free conditions in Sweden during Marine Oxygen Isotope Stage 3? Boreas, Vol dates for Sweden older than the Last Glacial Maximum ice advance were eval- uated. Acceptable 14 C dates

Wohlfarth, Barbara

245

Author's personal copy Knowledge management technology as a stage for strategic  

E-Print Network (OSTI)

of knowledge management technologies like intranets, recommender systems, and social networking sites for capAuthor's personal copy Knowledge management technology as a stage for strategic self management technologies are not simple containers for the storage of expertise, but that they are stages upon

Leonardi, Paul

246

Generation of high peak power pulse using 2 stage erbium-doped fiber amplifier  

E-Print Network (OSTI)

-doped fiber. For the second stage, two 1480nm pump lasers were used to pump erbium-doped fiber in both forward and backward propagating direction. The signal laser was modulated to produce pulses with high repetition rate high peak power. The first stage...

Lee, Kyung-Woo

2012-06-07T23:59:59.000Z

247

Multi-stage linear slot virtual impactor for concentration of bioaerosols  

E-Print Network (OSTI)

in parallel for the first stage with the designed dimensions of 87 mm (3.4Â?) for the throat length, 0.305 mm (.012Â?) for the accelerator throat width, and 0.457 mm (.018Â?) for the receiver throat width. The second stage contained a single unit...

Conerly, Shawn Charles

2006-08-16T23:59:59.000Z

248

High Resolution RANS NLH Study of Stage 67 Tip Injection Physics  

SciTech Connect

Numerical prediction of the Stage 67 transonic fan stage employing wall jet tip injection flow control and study of the physical mechanisms leading to stall suppression and stability enhancement afforded by endwall recirculation/injection is the focus of this paper. Reynolds averaged Navier-Stokes computations were used to perform detailed analysis of the Stage 67 configuration experimentally tested at NASA s Glenn Research Center in 2004. Time varying prediction of the stage plus recirculation and injection flowpath were performed utilizing the Nonlinear Harmonic approach. Significantly higher grid resolution per passage was achieved than what has been generally employed in prior reported numerical studies of spike stall phenomena in transonic compressors. This paper focuses on characterizing the physics of spike stall embryonic stage phenomena and the impact of tip injection, resulting in experimentally and numerically demonstrated stall suppression

Matheson, Michael A [ORNL

2014-01-01T23:59:59.000Z

249

Design, analysis and testing of a parallel-kinematic high-bandwidth XY nanopositioning stage  

SciTech Connect

This paper presents the design, analysis, and testing of a parallel-kinematic high-bandwidth XY nanopositioning stage driven by piezoelectric stack actuators. The stage is designed with two kinematic chains. In each kinematic chain, the end-effector of the stage is connected to the base by two symmetrically distributed flexure modules, respectively. Each flexure module comprises a fixed-fixed beam and a parallelogram flexure serving as two orthogonal prismatic joints. With the purpose to achieve high resonance frequencies of the stage, a novel center-thickened beam which has large stiffness is proposed to act as the fixed-fixed beam. The center-thickened beam also contributes to reducing cross-coupling and restricting parasitic motion. To decouple the motion in two axes totally, a symmetric configuration is adopted for the parallelogram flexures. Based on the analytical models established in static and dynamic analysis, the dimensions of the stage are optimized in order to maximize the first resonance frequency. Then finite element analysis is utilized to validate the design and a prototype of the stage is fabricated for performance tests. According to the results of static and dynamic tests, the resonance frequencies of the developed stage are over 13.6 kHz and the workspace is 11.2??m × 11.6??m with the cross-coupling between two axes less than 0.52%. It is clearly demonstrated that the developed stage has high resonance frequencies, a relatively large travel range, and nearly decoupled performance between two axes. For high-speed tracking performance tests, an inversion-based feedforward controller is implemented for the stage to compensate for the positioning errors caused by mechanical vibration. The experimental results show that good tracking performance at high speed is achieved, which validates the effectiveness of the developed stage.

Li, Chun-Xia; Gu, Guo-Ying; Yang, Mei-Ju; Zhu, Li-Min, E-mail: zhulm@sjtu.edu.cn [State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China)] [State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China)

2013-12-15T23:59:59.000Z

250

Thermodynamic analysis on a two-stage transcritical CO2 heat pump cycle with double ejectors  

Science Journals Connector (OSTI)

Abstract In this study, two ejectors are proposed as expansion devices for a two-stage transcritical CO2 heat pump cycle to enhance the cycle performance. The two ejectors are arranged at the low- and high-pressure stages, respectively, to recover more available expansion work, and significantly reduce the throttling loss at each stage. The performance of the improved two-stage cycle is evaluated by using the developed mathematical model, and then compared with those of the basic two-stage cycle with a flash tank. The simulation results show that the improved two-stage cycle exhibits higher heating COP and volumetric heating capacity compared to the basic two-stage cycle. By further incorporating an internal heat exchanger, the heating COP can be increased by 10.5–30.6% above that of the baseline cycle when the subcooling degree varied from 0 to 15 °C under given operation conditions of ?15 °C evaporating temperature, 10 MPa gas cooler pressure and 35 °C outlet temperature. Additionally, the effects of the gas cooler pressure and intermediate pressure on the maximal heating COP are also discussed.

Meibo Xing; Jianlin Yu; Xiaoqin Liu

2014-01-01T23:59:59.000Z

251

Lab obtains approval to begin design on new radioactive waste staging  

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

New radioactive waste staging facility New radioactive waste staging facility Lab obtains approval to begin design on new radioactive waste staging facility The 4-acre complex will include multiple staging buildings plus an operations center and a concrete pad for mobile waste characterization equipment. September 1, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy

252

Surveillance Guides - QAS 2.2 Staging/Storage of Components  

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

STAGING/STORAGE OF COMPONENTS STAGING/STORAGE OF COMPONENTS 1.0 Objective The objective of this surveillance is to ensure that before components or consumables are used in maintenance and repair of equipment and systems, or before new components and systems are installed, they are stored in ways that prevent deterioration. The surveillance also examines the contractor's practices in staging materials, and the use of effective quality control to ensure materials and components are stored and staged properly. Finally, the surveillance provides an opportunity for the Facility Representative to verify that the contractor is complying with performance objectives established by the Department of Energy. 2.0 References 2.1 DOE 5700.6C, Quality Assurance

253

EA-0874: Low-level Waste Drum Staging Building at Weapons Engineering  

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

74: Low-level Waste Drum Staging Building at Weapons 74: Low-level Waste Drum Staging Building at Weapons Engineering Tritium Facility, TA-16 Los Alamos National Laboratory, Los Alamos, New Mexico EA-0874: Low-level Waste Drum Staging Building at Weapons Engineering Tritium Facility, TA-16 Los Alamos National Laboratory, Los Alamos, New Mexico SUMMARY This EA evaluates the environmental impacts of a proposal to place a 3 meter (m) by 4.5 m prefabricated storage building (transportainer) adjacent to the existing Weapons Engineering Tritium Facility at Technical Area 16, U.S. Department of Energy's Los Alamos National Laboratory in Los Alamos, New Mexico, and to use the building as a staging site for sealed 55-gallon drums of noncompactible waste contaminated with low levels of tritium. PUBLIC COMMENT OPPORTUNITIES

254

Exergy analysis of a two-stage refrigeration cycle using two natural substitutes of HCFC22  

Science Journals Connector (OSTI)

The aim of the present paper is to carry out a detailed exergy analysis of a two-stage vapour compression cycle by calculating its components exergetic losses. The exergy equations have been developed using refrigerant thermodynamic properties computed by means of a simple model of local equations of states. The results of the exergy analysis of a two-stage refrigeration system operating between a constant evaporating temperature of -30°C and condensation temperatures of 30, 40, 50 and 60°C with two natural substitutes of HCFC22, namely, propane (R290) and ammonia (R717) as working fluids, are presented. It is found that the most significant losses occur in the compressors, expansion valves and condenser. Furthermore, it is shown that the optimum inter-stage pressure for a two-stage refrigeration system is very close to the saturation pressure corresponding to the arithmetical mean of the refrigerant condensation and evaporation temperatures.

Ahmed Ouadha; Mohammed En-nacer; Lahouari Adjlout; Omar Imine

2005-01-01T23:59:59.000Z

255

E-Print Network 3.0 - advanced stage cancer Sample Search Results  

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

cancer Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced stage cancer Page: << < 1 2 3 4 5 > >> 1 This issue of the Stanford Cancer...

256

THE StageTools PACKAGE FOR CREATING GEOMETRY FOR THE WEB  

E-Print Network (OSTI)

THE StageTools PACKAGE FOR CREATING GEOMETRY FOR THE WEB DAVIDE P. CERVONE Abstract. A number- ically for use on the web, or recorded on traditional video tape. Together, these modules form a powerful

Cervone, Davide P.

257

Ways of improving efficiency of turbine stages having high blade height to mean diameter ratio  

Science Journals Connector (OSTI)

We propose an approximate method for profiling the blades of steam-turbine last stages with a high height to ... variable slope along the height that allows better efficiency of the turbine unit to be obtained.

G. A. Filippov; A. R. Avetisyan

2009-02-01T23:59:59.000Z

258

Film Cooling, Heat Transfer and Aerodynamic Measurements in a Three Stage Research Gas Turbine  

E-Print Network (OSTI)

turbine rotational speeds namely, 2400rpm, 2550rpm and 3000rpm. Interstage aerodynamic measurements with miniature five hole probes are also acquired at these speeds. The aerodynamic data characterizes the flow along the first stage rotor exit, second...

Suryanarayanan, Arun

2010-07-14T23:59:59.000Z

259

European IPR Helpdesk IP Management in Horizon 2020: at the proposal stage  

E-Print Network (OSTI)

European IPR Helpdesk European IPR Helpdesk Fact Sheet IP Management in Horizon 2020: at the proposal stage The European IPR Helpdesk is managed by the European Commission's Executive Agency for Small

Robbiano, Lorenzo

260

Temperature distribution in the solar nebula at successive stages of its evolution  

Science Journals Connector (OSTI)

We have constructed a model of the solar nebula that allows for the temperature and pressure distributions at various stages of its evolution to ... the disk and from the disk to the Sun, the turbulent viscosity ...

A. B. Makalkin; V. A. Dorofeeva

2009-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Fault tree synthesis from UML models for reliability analysis at early design stages  

Science Journals Connector (OSTI)

System reliability analysis is often neglected at early design stages when design decisions change the system architecture rigorously. This is because appropriate methods are time consuming and require an in-depth knowledge about the applied method. ...

Christoph Lauer; Reinhard German; Jens Pollmer

2011-01-01T23:59:59.000Z

262

E-Print Network 3.0 - accurate axillary staging Sample Search...  

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

ORIGINAL ARTICLE doi:10.1111j.1558-5646.2011.01279.x Summary: estimate isolation at the F1 hybrid seed germination stage to be RIseed-ger F1 0.475 for P. axillaris... ORIGINAL...

263

Design Considerations, Installation and Operation of the Two-Stage Parallel Flow Absorption Chiller  

E-Print Network (OSTI)

This presentation describes the actual design consideration and field operation experience of two-stage parallel flow absorption chillers. The applications include new construction, rehabilitation of old HVAC systems, cogeneration, and industrial...

Hufford, P. E.

1984-01-01T23:59:59.000Z

264

Coherent phase space matching for staging plasma and traditional accelerator using longitudinally tailored plasma structure  

E-Print Network (OSTI)

For the further development of plasma based accelerators, phase space matching between plasma acceleration stages and between plasma stages and traditional accelerator components becomes a very critical issue for high quality high energy acceleration and its applications in light sources and colliders. Without proper matching, catastrophic emittance growth in the presence of finite energy spread may occur when the beam propagating through different stages and components due to the drastic differences of transverse focusing strength. In this paper we propose to use longitudinally tailored plasma structures as phase space matching components to properly guide the beam through stages. Theoretical analysis and full 3-dimensional particle-in-cell simulations are utilized to show clearly how these structures may work in four different scenarios. Very good agreements between theory and simulations are obtained.

Xu, X L; Zhang, C J; Li, F; Wan, Y; Hua, J F; Pai, C -H; Lu, W; Yu, P; An, W; Mori, W B; Joshi, C; Hogan, M J

2014-01-01T23:59:59.000Z

265

GM-Type Two-Stage Pulse Tube Cooler with High Efficiency  

Science Journals Connector (OSTI)

A two-stage pulse tube refrigerator has been designed for maximum refrigeration powers ... 6.5 kW of electric compressor. The modular setup of the cold head enables easy...

A. Hofmann; H. Pan; L. Oellrich

2002-01-01T23:59:59.000Z

266

Design and analysis of multi-stage expander processes for liquefying natural gas  

Science Journals Connector (OSTI)

Multi-stage expander refrigeration cycles were proposed and analyzed in order to develop an efficient natural gas liquefaction process. The proposed dual and cascade expander processes have high efficiency and th...

Wonsub Lim; Inkyu Lee; Kwanghee Lee…

2014-09-01T23:59:59.000Z

267

Modified landfill gas generation rate model of first-order kinetics and two-stage reaction  

Science Journals Connector (OSTI)

This investigation was carried out to establish a new domestic landfill gas (LFG) generation rate model that takes...L 0), the reaction rate constant in the first stage (K 1), and ...

Jiajun Chen; Hao Wang…

2009-09-01T23:59:59.000Z

268

A Model for Recording Early-Stage Proposals and Decisions on Using COTS Components in Architecture  

Science Journals Connector (OSTI)

Large networked systems can include the whole technological spectrum of embedded systems from deeply embedded applicationspecific systems to software intensive applications including COTS component intensive subsystems. Significant up-front and early-stage ...

Tuomas Ihme

2003-02-01T23:59:59.000Z

269

Pressure Transient Analysis for Multi-stage Fractured Horizontal Wells in Shale Gas Reservoirs  

Science Journals Connector (OSTI)

This article presents the PTA on the multi-stage fractured horizontal well in shale gas reservoirs incorporating desorption and diffusive flow in ... considering the mechanisms of desorption and diffusion in shale

Jingjing Guo; Liehui Zhang; Haitao Wang; Guoqing Feng

2012-07-01T23:59:59.000Z

270

Improvements to building energy usage modeling during early design stages and retrofits  

E-Print Network (OSTI)

A variety of improvements to the MIT Design Advisor, a whole-building energy usage modeling tool intended for use during early design stages, are investigated. These include changes to the thermal mass temperature distribution ...

Mandelbaum, Andrew (Andrew Joseph)

2014-01-01T23:59:59.000Z

271

Crucial stages of protein folding through a solvable model: Predicting target sites  

E-Print Network (OSTI)

Crucial stages of protein folding through a solvable model: Predicting target sites for enzyme. Keywords: Protein-folding modeling; prediction of key folding sites; HIV-1 protease; drug resistance One

Cecconi, Fabio

272

Effects of substrate, phenological cutting stage, and auxin concentration on rooting of Cotinus obovatus Raf.  

E-Print Network (OSTI)

A study was conducted to determine the effects of substrate, phenological stage of cuttings and auxin concentrations on the rooting of Texas smoke tree (Cotinus obovatus Raf). Softwood, semi-hardwood and hardwood cuttings were treated with either a...

Denny, Geoffrey Carlile

2013-02-22T23:59:59.000Z

273

Improvements to the Cooling Power of a Space Qualified Two-Stage Stirling Cycle Cooler  

Science Journals Connector (OSTI)

A long life two stage cooler has been developed at the Rutherford Appleton Laboratory (RAL) for space purposes. This cooler has been qualified for space use by Matra Marconi Space Systems (MMS). This cooler is us...

T. W. Bradshaw; A. H. Orlowska; C. Jewell; B. G. Jones; S. Scull

1997-01-01T23:59:59.000Z

274

An experimental study on combustion processes and nox emission characteristics of the air-staged burner  

Science Journals Connector (OSTI)

The combustion processes and emission characteristics in air-staged burner...5H5N) is used to investigate the fuel NOX emission characteristics. Experiments are carried out for a wide range of operating condition...

Kook-Young Ahn; Han-Seok Kim; Eun-Seong Cho; Jin-Hyuk Ahn…

1999-06-01T23:59:59.000Z

275

Experiments and Modeling of Two-Stage Combustion in Low-Emissions...  

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

using engine experiments and a multi-dimensional CFD code coupled with detailed chemistry and a Multi-Objective Genetic Algorithm (KIVA-CHEMKIN-MOGA code). The first stage is...

276

Conceptual design of long-span trusses using multi-stage heuristics  

E-Print Network (OSTI)

of evolving optimal trusses in an unstructured problem domain. Topology, geometry and sizing optimization of trusses are simultaneously addressed using a three stage methodology. Multi-objective genetic algorithms are used to optimize the member section sizes...

Agarwal, Pranab

2006-08-16T23:59:59.000Z

277

Influence factors of effects of Chinese coal mine safety regulations in different stages  

Science Journals Connector (OSTI)

Through measuring the effects of coal mine safety regulations in what we have termed the recovering stage, the advancing stage with exploration, and the gradually stable stage, the different effects and their reasons are analysed and explained for the years 1980-2010. The study indicates that coal mine safety management began to recover from 1980-1990. However the death rate was stubbornly high. The implementation of safety regulations during the advancing stage reduced the incidence of mortality. However, the government policy in China became more focused on economic development, and the shortfall in energy fuel production resulted in a dramatic increase in the number of small coal mines. After 2000, the supervision system gradually stabilised and the regulations were improved, significantly reducing the mortality rate. By 2010, the mortality rate was China's lowest for 30 years. So a complete, stable supervision system is required for regulations to be implemented effectively.

Qun Feng; Hong Chen

2013-01-01T23:59:59.000Z

278

Double-stage genetic algorithm for wind farm layout optimization on complex terrains  

Science Journals Connector (OSTI)

This paper deals with the problem of optimal wind turbine micro siting on complex terrains. A realistic wind farm terrain can be very complex not only for the topography of the terrain but also for other factors. Such factors are the environmental impact of the wind farm the costs of land the costs of access roads wind turbine installation and maintenance costs the costs of electrical infrastructure etc. A grid-based wind farm model that takes all of these factors into consideration is proposed. For the purpose of an optimization algorithm a double-stage genetic algorithm is proposed. In the first stage the optimal micro-areas for wind turbine positioning are determined whereas the second stage defines precise optimal positions of wind turbine foundations. The double-stage genetic algorithm increases the accuracy of wind turbine positioning and decreases the dimensionality of the problem. The algorithm has been tested on a realistic wind farm terrain in Serbia.

Goran Dobri?

2014-01-01T23:59:59.000Z

279

Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains  

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

Presents two-stage variable compression ratio mechanism realized by varying the connecting rod length, description of the system layout, working principle and expected fuel savings benefits when used in current and future gasoline engine concepts

280

Impacts of the Manufacturing and Recycling Stages on Battery Life Cycles  

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

IMPACTS OF THE MANUFACTURING AND RECYCLING STAGES ON BATTERY IMPACTS OF THE MANUFACTURING AND RECYCLING STAGES ON BATTERY LIFE CYCLES J. B. Dunn 1 , L. Gaines 1 , M. Barnes 2 , and J.L. Sullivan 1 1 Argonne National Laboratory, Energy Systems Division 9700 South Cass Avenue, Building 362 Argonne, IL 60439-4815, USA 2 Department of Mechanical Engineering The Pennsylvania State University 157E Hammond Building University Park, PA 16802 Keywords: battery, materials, manufacturing, life cycle, recycling Abstract

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Phenotypic and Molecular Genetic Analysis of Reproductive Stage Heat Tolerance in Wheat (Triticum aestivum)  

E-Print Network (OSTI)

PHENOTYPIC AND MOLECULAR GENETIC ANALYSIS OF REPRODUCTIVE STAGE HEAT TOLERANCE IN WHEAT (TRITICUM AESTIVUM) A Dissertation by RICHARD ESTEN MASON Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2010 Major Subject: Molecular and Environmental Plant Sciences PHENOTYPIC AND MOLECULAR GENETIC ANALYSIS OF REPRODUCTIVE STAGE HEAT TOLERANCE IN WHEAT (TRITICUM...

Mason, Richard Esten

2011-08-08T23:59:59.000Z

282

Three-stage stochastic Runge-Kutta methods for stochastic differential equations  

Science Journals Connector (OSTI)

In this paper we discuss three-stage stochastic Runge-Kutta (SRK) methods with strong order 1.0 for a strong solution of Stratonovich stochastic differential equations (SDEs). Higher deterministic order is considered. Two methods, a three-stage explicit ... Keywords: 60H10, 65L06, 65L20, Numerical stability, Order condition, Principal error coefficient, Runge-Kutta method, Stochastic differential equation

Peng Wang

2008-12-01T23:59:59.000Z

283

A Review of "Shakespeare, Politics, and Italy: Intertextuality on the Jacobean Stage  

E-Print Network (OSTI)

. Shakespeare, Politics, and Italy: Intertextuality on the Jacobean Stage. Farnham, Surrey, UK and Burlington, Vermont: Ashgate, 2009. x + 242pp. $99.95. Review by hugh f. wilson, grambling state university. In ?Of Studies,? Lord Bacon remarks that some... books are to be tasted, some books devoured whole, and some books need to be digested more slowly; this one takes time for digestion. Shakespeare, Politics, and Italy: Intertextuality on the Jacobean Stage does not so much ?conclude,? as end...

Wilson, Hugh F.

2010-01-01T23:59:59.000Z

284

Effects of the Secondary Oxygen Injection on the Performance of a Staged-Entrained Flow Coal Gasifier  

Science Journals Connector (OSTI)

In a staged entrained flow coal-slurry gasifier, the secondary oxygen was injected into the gasifier in order to protect the refractory in ... model, simulations were conducted for the staged gasifier at differen...

Cai Chunrong; WU Yuxin; Zhang Jiansheng…

2013-01-01T23:59:59.000Z

285

Wellcome Trust SUBMISSION OF EVIDENCE Wellcome Trust response to Department for Education: Reforming Key Stage 4 qualifications  

E-Print Network (OSTI)

: Reforming Key Stage 4 qualifications December 2012 Department for Education: Reforming Key Stage 4 science skills. 2. We are pleased to have the opportunity to respond to the consultation on reforms to Key consultations on the reform to curriculum and assessment at various stages of schooling. There is an opportunity

Rambaut, Andrew

286

Peripheral-blood cell-free Epstein-Barr viral DNA load complements clinical staging in nasopharyngeal carcinoma prognostication  

Science Journals Connector (OSTI)

...Epstein-Barr viral DNA load complements clinical staging...Epstein-Barr viral (EBV) DNA load data with clinical staging information...Peripheral-blood cell-free EBV DNA load is an independent prognostic...interpretation of EBV DNA data with clinical staging data...

Sing F. Leung; Benny Zee; Brigette B. Ma; Edwin P. Hui; Frankie Mo; Maria Lai; K. C. Allen Chan; Lisa YS Chan; Wing Hong Kwan; Y. M. Lo; and Anthony TC Chan

2006-10-01T23:59:59.000Z

287

MULTILEVEL INVERTER, BASED ON MULTI-STAGE CONNECTION OF THREE-LEVEL CONVERTERS, SCALED IN POWER OF THREE.  

E-Print Network (OSTI)

MULTILEVEL INVERTER, BASED ON MULTI-STAGE CONNECTION OF THREE-LEVEL CONVERTERS, SCALED IN POWER. #12;MULTILEVEL INVERTER, BASED ON MULTI-STAGE CONNECTION OF THREE-LEVEL CONVERTERS, SCALED IN POWER, Concepción, Chile ABSTRACT A multi-stage inverter using three-state converters is being analyzed

Catholic University of Chile (Universidad Católica de Chile)

288

Patch mosaic of developmental stages in central European natural forests along vegetation gradient  

Science Journals Connector (OSTI)

Abstract The shifting mosaic of patches in different phases of forest development is a widely used framework for describing stand dynamics, structure and biodiversity in European temperate forests. In spite of the common application of patch mapping of developmental stages/phases, an objective and quantified evaluation of patch mosaics has been missing. This approach identifies patches of forest stand according to a developmental trajectory, from Growth, through an Optimum stage to Breakdown. Here we present the first attempt to compare quantitative and qualitative characteristics of patch mosaics of stand developmental stages using three decades of extensive data in five study sites along a vegetation gradient. We do this using the same, observer independent method based on an artificial neural network classifier. We also used the historical stem position datasets to evaluate the change of mosaic characteristics in time. Resulting patch patterns were analyzed by standard mosaic metrics commonly used in landscape ecology, evaluating area, shape, aggregation and connectivity of patches. The mean patch size of the mosaic of four developmental stages showed a relatively narrow range of 570–800 m2 in all study sites and censuses. The shape of patches in all sites and years had no significant differences, and the aggregation of patches of the same type was similar in all sites at the mosaic level. Conversely, we did find some stage-specific patterns. For example, the Growth stage was usually the most abundant (covering 25–50% of the stand), and had the highest mean patch size, ranging between 590 and 2800 m2. The Growth stage patches also had the most complex shapes. On the contrary, the Breakdown stage usually had the opposite values, forming constantly small (250–720 m2), simple and scattered patches in the mosaic. These basic traits were found in all study sites and were stable in time. We also found some common trends in the dataset, such as increasing mean patch size of the Breakdown stage along the altitudinal vegetation gradient. The complex Steady State stage was generally more abundant than expected according to results of other studies and thus might indicate processes that have not been well described in previous, subjective, applications of the patch mosaic paradigm.

Kamil Král; Sean M. McMahon; David Janík; Dušan Adam; Tomáš Vrška

2014-01-01T23:59:59.000Z

289

Early stage expansion and time-resolved spectral emission of laser-induced  

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

Early stage expansion and time-resolved spectral emission of laser-induced Early stage expansion and time-resolved spectral emission of laser-induced plasma from polymer Title Early stage expansion and time-resolved spectral emission of laser-induced plasma from polymer Publication Type Journal Article Year of Publication 2009 Authors Boueri, Myriam, Matthieu Baudelet, Jin Yu, Xianglei Mao, Samuel S. Mao, and Richard E. Russo Journal Applied Surface Science Volume 255 Issue 24 Pagination 9566-9571 Date Published 09/2009 Keywords Early stage plasma expansion, Laser ablation of polymer, Plasma spectral emission Abstract In the nanosecond laser ablation regime, absorption of laser energy by the plasma during its early stage expansion critically influences the properties of the plasma and thus its interaction with ambient air. These influences can significantly alter spectral emission of the plasma. For organic samples especially, recombination of the plasma with the ambient air leads to interfering emissions with respect to emissions due to native species evaporated from the sample. Distinguishing interfering emissions due to ambient air represents a critical issue for the application of laser-induced breakdown spectroscopy (LIBS) to the analysis of organic materials. In this paper, we report observations of early stage expansion and interaction with ambient air of the plasma induced on a typical organic sample (nylon) using timeresolved shadowgraph. We compare, in the nanosecond ablation regime, plasmas induced by infrared (IR) laser pulses (1064 nanometers) and ultraviolet (UV) laser pulses (266 nanometers). Nanosecond ablation is compared with femtosecond ablation where the post-ablation interaction is absent. Subsequent to the early stage expansion, we observe for each studied ablation regime, spectral emission from CN, a typical radical for organic and biological samples. Time-resolved LIBS allows identifying emissions from native molecular species and those due to recombination with ambient air through their different time evolution behaviors.

290

Catalytic multi-stage process for hydroconversion and refining hydrocarbon feeds  

DOE Patents (OSTI)

A multi-stage catalytic hydrogenation and hydroconversion process for heavy hydrocarbon feed materials such as coal, heavy petroleum fractions, and plastic waste materials. In the process, the feedstock is reacted in a first-stage, back-mixed catalytic reactor with a highly dispersed iron-based catalyst having a powder, gel or liquid form. The reactor effluent is pressure-reduced, vapors and light distillate fractions are removed overhead, and the heavier liquid fraction is fed to a second stage back-mixed catalytic reactor. The first and second stage catalytic reactors are operated at 700-850.degree. F. temperature, 1000-3500 psig hydrogen partial pressure and 20-80 lb./hr per ft.sup.3 reactor space velocity. The vapor and light distillates liquid fractions removed from both the first and second stage reactor effluent streams are combined and passed to an in-line, fixed-bed catalytic hydrotreater for heteroatom removal and for producing high quality naphtha and mid-distillate or a full-range distillate product. The remaining separator bottoms liquid fractions are distilled at successive atmospheric and vacuum pressures, low and intermediate-boiling hydrocarbon liquid products are withdrawn, and heavier distillate fractions are recycled and further upgraded to provide additional low-boiling hydrocarbon liquid products. This catalytic multistage hydrogenation process provides improved flexibility for hydroprocessing the various carbonaceous feedstocks and adjusting to desired product structures and for improved economy of operations.

Comolli, Alfred G. (Yardley, PA); Lee, Lap-Keung (Cranbury, NJ)

2001-01-01T23:59:59.000Z

291

Outcomes in Patients With Early-Stage Hypopharyngeal Cancer Treated With Radiotherapy  

SciTech Connect

Purpose: To analyze the outcome in patients with early-stage hypopharyngeal cancer (HPC) who were treated with radiotherapy (RT). Methods and Materials: Between February 1988 and February 2007, 77 patients with Stage I or Stage II HPC underwent definitive RT in the Division of Radiation Oncology at the National Cancer Center Hospital. Eleven of the patients received local irradiation, and the other 66 patients received elective bilateral neck irradiation and booster irradiation to the primary lesion. The median follow-up period for all the patients was 33 months from the start of RT, ranging from 3 to 229 months. Results: The rates of overall survival, HPC-specific survival, HPC recurrence-free survival, and local control with laryngeal voice preservation for the 77 patients at 5 years were 47%, 74%, 57%, and 70%, respectively. The survival rates were not affected by the patient characteristics or treatment factors, but the RT field was significantly correlated with local control in a multivariate analysis. Seven of the patients had Grade 3 or greater complications, but these complications occurred after salvage surgery in 6 of the patients. Of the 77 patients, 83% had synchronous or metachronous malignancies, but these malignancies did not influence the survival of the patients if the malignancies were detected at an early stage. Conclusion: RT is an appropriate treatment method for early-stage HPC. However, because synchronous or metachronous malignancies occur at a relatively high frequency, careful follow-up and the early detection of such malignancies are critical.

Yoshimura, Ryo-ichi, E-mail: ysmrmrad@tmd.ac.j [Division of Radiation Oncology, National Cancer Center Hospital, Tokyo (Japan); Department of Diagnostic Radiology and Oncology, Head and Neck Reconstruction Division, Graduate School, Tokyo Medical and Dental University, Tokyo (Japan); Kagami, Yoshikazu; Ito, Yoshinori [Division of Radiation Oncology, National Cancer Center Hospital, Tokyo (Japan); Asai, Masao [Division of Head and Neck Surgery, National Cancer Center Hospital, Tokyo (Japan); Mayahara, Hiroshi; Sumi, Minako; Itami, Jun [Division of Radiation Oncology, National Cancer Center Hospital, Tokyo (Japan)

2010-07-15T23:59:59.000Z

292

Development of a novel 2-stage entrained flow coal dry powder gasifier  

Science Journals Connector (OSTI)

Abstract Coal-fired gasifiers are the key technology for clean power generation and coal chemical process. This paper presents a 2-stage entrained flow dry powder gasifier in which coal is entrained into the lower chamber burner with oxygen and steam to raise the temperature of the crude gas up to 1700 °C. The lower chamber is linked to the upper gasification chamber through a middle throat, where additional coal and steam is fed to cool down the slag to less than 900 °C for deslagging from the lower chamber bottom. Various coals have been characterized and gasified with this 2-stage entrained flow dry powder gasifier and comparisons made with single stage gasifiers. The results show that the 2-stage gasifier is suitable for a broad range of coal varieties and gives carbon conversion up to 98.9% with cold syngas efficiency of 83.2% at a pressure of 3.0 MPa, while the oxygen and coal consumption are lower than with the single stage gasifier.

Shisen Xu; Yongqiang Ren; Baomin Wang; Yue Xu; Liang Chen; Xiaolong Wang; Tiancun Xiao

2014-01-01T23:59:59.000Z

293

Catalytic two-stage coal hydrogenation process using extinction recycle of heavy liquid fraction  

DOE Patents (OSTI)

A process is described for catalytic two-stage hydrogenation and liquefaction of coal with selective extinction recycle of all heavy liquid fractions boiling above a distillation cut point of about 600--750 F to produce increased yields of low-boiling hydrocarbon liquid and gas products. In the process, the particulate coal feed is slurried with a process-derived liquid solvent normally boiling above about 650 F and fed into a first stage catalytic reaction zone operated at conditions which promote controlled rate liquefaction of the coal, while simultaneously hydrogenating the hydrocarbon recycle oils. The first stage reactor is maintained at 710--800 F temperature, 1,000--4,000 psig hydrogen partial pressure, and 10-90 lb/hr per ft[sup 3] catalyst space velocity. Partially hydrogenated material withdrawn from the first stage reaction zone is passed directly to the second stage catalytic reaction zone maintained at 760--860 F temperature for further hydrogenation and hydroconversion reactions. A 600--750 F[sup +] fraction containing 0--20 W % unreacted coal and ash solids is recycled to the coal slurrying step. If desired, the cut point lower boiling fraction can be further catalytically hydrotreated. By this process, the coal feed is successively catalytically hydrogenated and hydroconverted at selected conditions, to provide significantly increased yields of desirable low-boiling hydrocarbon liquid products and minimal production of hydrocarbon gases, and no net production of undesirable heavy oils and residuum materials. 2 figs.

MacArthur, J.B.; Comolli, A.G.; McLean, J.B.

1989-10-17T23:59:59.000Z

294

Programming Stage  

Directives, Delegations, and Requirements

This chapter addresses plans for the acquisition and installation of operating environment hardware and software and design of a training program.

1997-05-21T23:59:59.000Z

295

Sierra Nevada-Basin and Range Transition Near Reno, Nevada: Two-Stage  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Sierra Nevada-Basin and Range Transition Near Reno, Nevada: Two-Stage Development at 12 and 3 Ma Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Sierra Nevada-Basin and Range Transition Near Reno, Nevada: Two-Stage Development at 12 and 3 Ma Abstract Relative and absolute elevations of the Sierra Nevada and adjacent Basin and Range province, timing of their differentiation, and location, amount, and timing of strike-slip movement between them are controversial. The provincial boundary near Reno developed in two stages. (1) At ca. 12 Ma,

296

BELLA World Record Sets Stage for Laser Experiments in Novel Acceleration  

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

BELLA World Record Sets Stage for Laser Experiments in Novel BELLA World Record Sets Stage for Laser Experiments in Novel Acceleration Techniques High Energy Physics (HEP) HEP Home About Research Facilities Science Highlights Benefits of HEP Funding Opportunities Advisory Committees News & Resources Contact Information High Energy Physics U.S. Department of Energy SC-25/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3624 F: (301) 903-2597 E: sc.hep@science.doe.gov More Information » October 2012 BELLA World Record Sets Stage for Laser Experiments in Novel Acceleration Techniques Laser Delivers One Petawatt of Power in a Pulse only 40 Femtoseconds Long Every Second Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of Roy Kaltschmidt, LBNL

297

Department of Energy to Invest up to $12 Million to Support Early Stage  

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

up to $12 Million to Support Early up to $12 Million to Support Early Stage Solar Technologies Department of Energy to Invest up to $12 Million to Support Early Stage Solar Technologies January 20, 2010 - 12:00am Addthis Washington, DC - U.S. Department of Energy Secretary Steven Chu today announced that the Department's National Renewable Energy Laboratory (NREL) will invest up to $12 million in total funding - $10 million from the American Recovery and Reinvestment Act - in four companies to support the development of early stage solar energy technologies and help them advance to full commercial scale. The goal of this effort is to help further expand a clean energy economy and make solar energy more cost-competitive with conventional forms of electricity. "Expanding the solar power industry in the U.S. can create new jobs, reduce

298

Setting the Stage for the Next Solar Decathlon | Department of Energy  

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

Setting the Stage for the Next Solar Decathlon Setting the Stage for the Next Solar Decathlon Setting the Stage for the Next Solar Decathlon November 4, 2013 - 2:43pm Addthis Philipp Klebert, center, celebrates after learning Vienna University of Technology placed first in the U.S. Department of Energy Solar Decathlon 2013 at Orange County Great Park in Irvine, California. | Photo by Stefano Paltera, U.S. Department of Energy Solar Decathlon Philipp Klebert, center, celebrates after learning Vienna University of Technology placed first in the U.S. Department of Energy Solar Decathlon 2013 at Orange County Great Park in Irvine, California. | Photo by Stefano Paltera, U.S. Department of Energy Solar Decathlon Iani Batilov (left to right), Kalewalani Banaco, Heather Holmstrom, Jinger Zeng and Christian Iusso from the University of Nevada at Las Vegas celebrate after learning their team placed second at Solar Decathlon. | Photo by Stefano Paltera, U.S. Department of Energy Solar Decathlon

299

Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event |  

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

Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event September 27, 2013 - 4:00pm Addthis Team Muscle Milk won the American Le Mans Series race at the Circuit of the Americas in Austin, Texas last weekend. The Honda ARX-03c runs on E10 fuel. | Photo courtesy of Rizzo Motorsports Images Team Muscle Milk won the American Le Mans Series race at the Circuit of the Americas in Austin, Texas last weekend. The Honda ARX-03c runs on E10 fuel. | Photo courtesy of Rizzo Motorsports Images A Corvette running on E85 fuel won the GT class at Circuit of the Americas. | Photo courtesy of Rizzo Motorsports Images A Corvette running on E85 fuel won the GT class at Circuit of the Americas.

300

NETL: Staged, High-Pressure Oxy-Combustion Technology: Development and  

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

Oxy-Combustion CO2 Emissions Control Oxy-Combustion CO2 Emissions Control Staged, High-Pressure Oxy-Combustion Technology: Development and Scale-up Project No.: DE-FE0009702 Washington University in St. Louis is developing a unique pressurized system to capture carbon from coal-fired power plants that incorporates a fuel-staged combustion approach. By staging the combustion, the temperature and heat transfer can be controlled. The potential benefits of the process are: higher efficiency, reduced process gas volume, increased radiative heat transfer, reduced oxygen demands, reduced capital equipment costs, increased CO2 purity entering the carbon compression and purification unit, and reduced auxiliary power demands. These benefits are expected to yield a lower cost of electricity than alternative approaches to pressurized oxy-combustion.

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Catalyst dispersion and activity under conditions of temperature-staged liquefaction. Final report  

SciTech Connect

This research program involves the investigation of the use of highly dispersed catalyst precursors for the pretreatment of coals by mild hydrogenation. During the course of this effort solvent preswelling of the coal was evaluated as a means of deeply impregnating catalysts into coal, active phases of catalysts under reaction conditions were studied and the impact of these techniques were evaluated during pretreatment and temperature-staged liquefaction. Two coals, a Texas subbituminous and a Utah high volatile A bituminous, were used to examine the effects of solvent swelling pretreatment and catalyst impregnation on conversion behavior at 275{degrees}C, representative of the first, low-temperature stage in a temperature-staged liquefaction reaction. Ferrous sulfate, iron pentacarbonyl, ammonium tetrathiomolybdate, and molybdenum hexacarbonyl were used as catalyst precursors. Without swelling pretreatment, impregnation of both coals increased conversion, mainly through increased yields of preasphaltenes.

Davis, A.; Schobert, H.H.; Mitchell, G.D.; Artok, L.

1993-02-01T23:59:59.000Z

302

Catalyst dispersion and activity under conditions of temperature-staged liquefaction  

SciTech Connect

This research program involves the investigation of the use of highly dispersed catalyst precursors for the pretreatment of coals by mild hydrogenation. During the course of this effort solvent preswelling of the coal was evaluated as a means of deeply impregnating catalysts into coal, active phases of catalysts under reaction conditions were studied and the impact of these techniques were evaluated during pretreatment and temperature-staged liquefaction. Two coals, a Texas subbituminous and a Utah high volatile A bituminous, were used to examine the effects of solvent swelling pretreatment and catalyst impregnation on conversion behavior at 275[degrees]C, representative of the first, low-temperature stage in a temperature-staged liquefaction reaction. Ferrous sulfate, iron pentacarbonyl, ammonium tetrathiomolybdate, and molybdenum hexacarbonyl were used as catalyst precursors. Without swelling pretreatment, impregnation of both coals increased conversion, mainly through increased yields of preasphaltenes.

Davis, A.; Schobert, H.H.; Mitchell, G.D.; Artok, L.

1993-02-01T23:59:59.000Z

303

The staged cooling process: A practical approach to zero wastewater discharge  

SciTech Connect

Staged cooling is an established, low cost zero wastewater discharge technology that maximizes water reuse and recycle in industrial water cooling applications by extending the evaporative cooling process. Water usage is minimized and 200 to 300 cycles of concentration are possible while protecting the primary process cooling systems from the perils of excessive conductivity and/or hardness. The process is currently operating in eight power plants and has over 200,000 accumulative operating hours with excellent results. A ninth plant is due to begin operation in early 1996. Staged cooling uses two or three hydraulically isolated evaporative cooling loops. Primary, secondary and waste water (brine) cooling loops are characterized by low, intermediate, and high (brine) mineral concentrations. Depending on the water chemistry and the power plant configuration, staged cooling systems have primary/secondary, primary/brine, or primary/secondary/brine configurations.

Sanderson, W.G.; Lancaster, R.L. [Eautech, Redmond, WA (United States)

1995-12-31T23:59:59.000Z

304

Measurements of the viscoelastic and heterogeneous response of the passive stage 18 embryonic chick heart  

E-Print Network (OSTI)

pressure (mm Hg) ' End-diastolic ventricular pressure (mm Hg) ' 1'rom Hu and Clark (1989) from Lin and Taber (1994) ' from Lin and Taber (1995) Stage 16 (2'/r d) 0. 286 0. 542 2. 0 122+ 3 O. og 2 0. 01 1. 15 k 0. 04 0. 25 S: 0. 02 Stage 18 (3... longitudinal structure thought to be stiffer than the rest of the cardiac tissue ? that lies along one side of the early cardiac tube, which attaches the heart to the embryo before looping occurs and is resorbed by the heart during looping (Taber, 1995...

Ling, Phyllis

2000-01-01T23:59:59.000Z

305

Cancer progression analysis based on ordinal relationship of cancer stages and co-expression network modularity  

Science Journals Connector (OSTI)

A comprehensive understanding of cancer progression may shed light on genetic and molecular mechanisms of oncogenesis, and provide important information for effective diagnosis and prognosis. We propose a multicategory logit model to identify genes that show significant correlations across multiple cancer stages. We have applied the approach on a Prostate Cancer (PCA) progression data and obtained a set of genes that show consistent trends across multiple stages. Further analysis based on multiple evidences demonstrates that our candidate list includes not only some well-known prostate-cancer-related genes, but also novel genes that have been confirmed very recently.

Yoon Soo Pyon; Xin Li; Jing Li

2011-01-01T23:59:59.000Z

306

Genomic DNA methylation at specific stages in the life cycle of two fungi  

E-Print Network (OSTI)

Member) John R, Gold (Member) J. A. ang (Head of De artment) August 1985 ABSTRACT Genomic DNA Methylation at Specific Stages in the Life Cycle of Two Fungi. (August 1985) Eldon Ralph Jupe, B. S. , Texas A df M University Chairman of Advisory... Member) John R, Gold (Member) J. A. ang (Head of De artment) August 1985 ABSTRACT Genomic DNA Methylation at Specific Stages in the Life Cycle of Two Fungi. (August 1985) Eldon Ralph Jupe, B. S. , Texas A df M University Chairman of Advisory...

Jupe, Eldon Ralph

2012-06-07T23:59:59.000Z

307

Investigations of stage acoustics at the Sydney Opera House Concert Hall  

Science Journals Connector (OSTI)

Improvements to onstage hearing conditions were made at the Sydney Opera House Concert Hall during a series of acoustics trials conducted during September 2009. During the acoustic trials physical changes were made to reflective surfaces around the platform and an active acoustics system was demonstrated. Taken together the temporary changes had a positive influence on hearing conditions during both rehearsals and performances by the Sydney Symphony Orchestra and Sydney Philharmonia. This paper reviews the strategies used to implement the improvements to stage acoustics and discusses the unique techniques used to evaluate the stage acoustics both subjectively and objectively.

Timothy E. Gulsrud

2011-01-01T23:59:59.000Z

308

Grain sorghum response to different flooding periods at the early boot stage  

E-Print Network (OSTI)

GRAIN SORGHUM RESPONSE TO DIFFERENT FLOODING PERIODS AT THE EARLY BOOT STAGE A Thesis by OSCAR ZOLEZZI DEL RIO Submitted to the Graduate College of Texas A)M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1976 Major Subject: Agricultural Engineering GRAIN SORGHUM RESPONSE TO DIFFERENT FLOODING PERIODS AT THE EARLY BOOT STAGE A Thesis by OSCAR 2OLE22I DEL RIO Approved as to style and content by: airman o ommzttee Hea o Departme t e er...

Zolezzi del Rio, Oscar

2012-06-07T23:59:59.000Z

309

Genomic DNA methylation in various developmental stages of two plant pathogenic fungi  

E-Print Network (OSTI)

blotting procedure. The blots were then hybridized with DNA probes from the highly repeated Neurospora crassa rDNA repeat unit labeled with [a. P] dCTP in a random-primed oligolabeling reaction. Results of the hybridizations were visualized... shows s. high degree of methylation at the inner (3') C in both stages (mycelia and sclerotia) at the genomic level. The rRNA genes exhibit the same high level of methylation at the 3' C with the addition of some stage specific methylation...

Schliesing, Laura Jo

1990-01-01T23:59:59.000Z

310

Phase Stable Net Acceleration of Electrons From a Two-Stage Optical Accelerator  

SciTech Connect

In this article we demonstrate the net acceleration of relativistic electrons using a direct, in-vacuum interaction with a laser. In the experiment, an electron beam from a conventional accelerator is first energy modulated at optical frequencies in an inverse-free-electron-laser and bunched in a chicane. This is followed by a second stage optical accelerator to obtain net acceleration. The optical phase between accelerator stages is monitored and controlled in order to scan the accelerating phase and observe net acceleration and deceleration. Phase jitter measurements indicate control of the phase to {approx}13{sup o} allowing for stable net acceleration of electrons with lasers.

Sears, Christopher M.S.; /SLAC /Munich, Max Planck Inst. Quantenopt.; Colby, Eric; England, R.J.; Ischebeck, Rasmus; McGuinness, Christopher; Nelson, Janice; Noble, Robert; Siemann, Robert H.; Spencer, James; Walz, Dieter; /SLAC; Plettner, Tomas; Byer, Robert L.; /Stanford U., Phys. Dept.

2011-11-11T23:59:59.000Z

311

Positron Emission Tomography/Computed Tomography in the Staging and Treatment of Anal Cancer  

SciTech Connect

Purpose: This study was intended to determine the role of PET/CT in the staging of anal cancer as a supplement to three-dimensional transanal ultrasound (TAUS) and inguinal ultrasound (US). The impact of the PET/CT on the initial stage and treatment plan proposed by TAUS/US was assessed. Methods and Materials: Ninety-five (95) patients referred to our clinic between July 1, 2005, and December 31, 2009, were retrospectively reviewed. All patients had biopsy-proven primary squamous cell cancer of the anal canal. There were 65 females (68%) and 30 males (32%), and the median age was 58 years (range, 35-88 years). Six (6%) of the patients were HIV positive. All patients were staged with TAUS/US and PET/CT. Results: Twenty-eight (28) patients were diagnosed with suspicious perirectal node metastases. TAUS visualized 24 of these, whereas PET/CT detected 15. Suspicious inguinal nodes were visualized on either US or PET/CT in 41 patients. Seventeen (17) of these had confirmed malignant disease on biopsy, and 15 had confirmed benign disease. All 17 patients (100%) with malignant inguinal nodes were diagnosed by PET/CT, whereas US identified 16 (94%). Ten patients were diagnosed with suspicious inguinal nodes on PET/CT that had not been seen on US. One of these was malignant, three were benign, and six were not biopsied. PET/CT diagnosed eight metastatic sites, whereas TAUS/US diagnosed three. PET/CT discovered three of the five synchronous cancers seen in this study. PET/CT upstaged the disease in 14% of the cases and changed the treatment plan proposed by TAUS/US in 17%. Conclusion: PET/CT has great potential influence on the staging and treatment of anal cancer. TAUS is important in the staging of the primary tumor and N1-stage, whereas PET/CT seems necessary for the N2/3-stage, the M-stage and synchronous cancers.

Sveistrup, Joen, E-mail: joensveistrup@hotmail.com [Department of Radiation Oncology, Rigshospitalet, Copenhagen (Denmark); Loft, Annika [PET and Cyclotron Unit, Department of Clinical Physiology and Nuclear Medicine, Centre of Diagnostic Investigations, Rigshospitalet, Copenhagen (Denmark); Berthelsen, Anne Kiil [Department of Radiation Oncology, Rigshospitalet, Copenhagen (Denmark); PET and Cyclotron Unit, Department of Clinical Physiology and Nuclear Medicine, Centre of Diagnostic Investigations, Rigshospitalet, Copenhagen (Denmark); Henriksen, Birthe Merete; Nielsen, Michael Bachmann [Department of Radiology, Section of Ultrasound X4123, Rigshospitalet, Copenhagen (Denmark); Engelholm, Svend Aage [Department of Radiation Oncology, Rigshospitalet, Copenhagen (Denmark)

2012-05-01T23:59:59.000Z

312

Body Weight Status, Inflammation, and Prognostic Markers in Early-Stage Prostate Cancer  

E-Print Network (OSTI)

Body Weight Status, Inflammation, and Prognostic Markers in Early-Stage Prostate Cancer Brown Bag (UICCC) IHRP Fellow #12;Outline Relative risk of cancer mortality in obese men Pathophysiologic basis for excess risk The case for inflammation/immunity in prostate cancer Preliminary results from

Illinois at Chicago, University of

313

Automatic classification of Sleep Stages on a EEG signal by Artificial Neural Networks  

E-Print Network (OSTI)

Automatic classification of Sleep Stages on a EEG signal by Artificial Neural Networks Nizar of modeling and design to improve the performances of our tool. Key-Words: - Artificial Neural Networks data analysis tools. Concerning this latter point, we have proposed that Artificial Neural Networks

Paris-Sud XI, Université de

314

Late-Stage Mafic Injection and Thermal Rejuvenation of the Vinalhaven Granite,  

E-Print Network (OSTI)

Late-Stage Mafic Injection and Thermal Rejuvenation of the Vinalhaven Granite, Coastal Maine R. A and reaction, indicating that the porphyry was well stirred. Thermal rejuvenation of a silicic crystal mush, along with thermal calculations, suggest that cooling and crystallization of coeval mafic magma could

Mcdonough, William F.

315

Two-stage Recognition of Raw Acceleration Signals for 3-D Gesture-Understanding Cell Phones  

E-Print Network (OSTI)

Two-stage Recognition of Raw Acceleration Signals for 3-D Gesture-Understanding Cell Phones Sung players are converged to cell phones, more intuitive interaction methods are essential beyond tiny keypads). The algorithms have been adopted in the world-first gesture-recognizing Samsung cell phones since 2005. Keywords

Paris-Sud XI, Université de

316

A Computer Program for Simulating Transient Behavior in Steam Turbine Stage Pressure of AHWR  

SciTech Connect

It is proposed to couple the Advanced Heavy water reactor (AHWR), which is being developed by Bhabha Atomic Research Centre, India, with a desalination plant. The objective of this coupling is to produce system make-up and domestic water. The proposed desalination plant needs about 1.9 kg/sec of steam and the minimum pressure requirement is 3 bars. The desalination plant can be fed with bled steam extracted from a suitable stage in low pressure turbine. As the turbine stage pressure changes with the load, it is essential to know the availability of bled steam at aforesaid pressure for various load condition. The objective of the present study is to identify a suitable extraction point so as to ensure availability of steam at desired condition for desalination plant, even at part load conditions. In order to fulfill the above objective a steam and feed system analysis code was developed which incorporates the mathematical formulation of different components of the steam and feed system such as, high pressure (HP) and low pressure (LP) turbines, re-heater, feed heaters etc. The dynamic equations are solved simultaneously to obtain the stage pressure at various load conditions. Based on the results obtained, the suitable extraction stage in LP turbine was selected. This enables to determine the lowest possible part load operation up to which availability of desalination plant could be ensured. (authors)

Dutta, Anu; Thangamani, I.; Chakraborty, G.; Ghosh, A.K.; Kushwaha, H.S. [Bhabha Atomic Research Centre, Trombay, Mumbai - 400 085 (India)

2006-07-01T23:59:59.000Z

317

A Multi Stage Fall-back Search Strategy for Cross-Lingual Information Retrieval  

E-Print Network (OSTI)

, uses the company's ontology to provide more precise and effective search results. DomainSense, OingoA Multi Stage Fall-back Search Strategy for Cross- Lingual Information Retrieval Satish Kagathara, manishpd}@it.iitb.ac.in, pb@cse.iitb.ac.in Abstract In this paper, we describe a special purpose search

Bhattacharyya, Pushpak

318

Multi-Stage Converters: A New Technology for Traction Drive Juan W. Dixon  

E-Print Network (OSTI)

demonstrated the feasibility to build multi-stage converters for real electric vehicles or electric buses of electric vehicles. On the other hand, the PWM techniques used today to control modern static converters of Electrical Engineering Pontificia Universidad Católica de Chile Felipe Ríos, and Alberto Bretón Department

Catholic University of Chile (Universidad Católica de Chile)

319

LCA Applied to Perennial Cropping Systems: a Review Focused on the Farm Stage C. Bessou 1  

E-Print Network (OSTI)

1 LCA Applied to Perennial Cropping Systems: a Review Focused on the Farm Stage C. Bessou 1 , C for bioenergy and have been, notably to this end, the subject of several LCA-based studies mostly focusing classified into three categories according to the comprehensiveness of the LCA study and depending on whether

Boyer, Edmond

320

LCA Applied to Perennial Cropping Systems: a Review Focused on the Farm Stage C. Bessou 1  

E-Print Network (OSTI)

1 LCA Applied to Perennial Cropping Systems: a Review Focused on the Farm Stage C. Bessou 1 , C, notably to this end, the subject of several LCA-based studies mostly focusing on energy and GHG balances according to the comprehensiveness of the LCA study and depending on whether they were peer-reviewed or not

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Heat transfer and film-cooling for the endwall of a first stage turbine vane  

E-Print Network (OSTI)

the turbine. Turbine inlet conditions in a gas turbine engine gen- erally consist of temperature and velocityHeat transfer and film-cooling for the endwall of a first stage turbine vane Karen A. Thole of the airfoils. One means of preventing degradation in the turbine is to film-cool components whereby coolant

Thole, Karen A.

322

Removal of indicator bacteria from municipal wastewater in an experimental two-stage vertical flow constructed  

E-Print Network (OSTI)

Removal of indicator bacteria from municipal wastewater in an experimental two-stage vertical flow, but no measurements were done during summer. Recycling of treated effluent back to the sedimentation tank did reasons for wastewater treatment. Constructed wetland systems remove pathogens by factors such as natural

Brix, Hans

323

Leader/return-stroke-like processes in the initial stage of rocket-triggered lightning  

E-Print Network (OSTI)

, current, and electric field records from nine triggered- lightning flashes are analyzed to examine of the time and location of a lightning flash, and hence of the exact distance to the termination point, and the initial stage remains considerably less studied. [3] The IS of a rocket-triggered lightning flash consists

Florida, University of

324

An exploration of the stages of change model in a group treatment program for male batterers  

E-Print Network (OSTI)

The purpose of this study was to investigate the adequacy of the Stages of Change model in a group therapy treatment program for male batterers. The sample consisted of three groups with a total sample size of 22 participants. Data for this study...

Wells, Robert Davis

2005-02-17T23:59:59.000Z

325

REQUEST FOR INFORMATION -NASA OFFICE OF THE CHIEF TECHNOLOGIST EARLY STAGE  

E-Print Network (OSTI)

. NIAC is part of OCT's Early Stage Innovation (ESI) Division. ESI efforts are expected to #12;be short Exploration Technology Program: A Review of NASA's Exploration Technology Development Program, 2008, http://www.nap.edu/catalog.php?record_id Stone to the Future of Space Exploration: A Workshop Report, 2004, http://www.nap.edu/catalog.php?record_id

Christian, Eric

326

METHOD AND TOOLS TO MEET ENERGY EFFICIENCY TARGETS AT PRODUCT DESIGN STAGE  

E-Print Network (OSTI)

METHOD AND TOOLS TO MEET ENERGY EFFICIENCY TARGETS AT PRODUCT DESIGN STAGE Guillaume MOENNE Energy consumption is a key topic for electr(on)ic products, due to growing regulations & sensibility of final consumers. Developments are possible to reduce energy consumption of products during use phase

Paris-Sud XI, Université de

327

Waves Transmission and Generation in Turbine Stages in a Combustion-Noise Framework  

E-Print Network (OSTI)

, the acoustic behavior of the turbine blade rows must be known to evaluate the noise due to combustionWaves Transmission and Generation in Turbine Stages in a Combustion-Noise Framework M. Leyko SNECMA-engines could have two different origins: (a) the well-known direct combustion noise,2 which is directly

Nicoud, Franck

328

EVALUATING THREAT ASSESSMENT FOR MULTI-STAGE CYBER ATTACKS Shanchieh Jay Yang  

E-Print Network (OSTI)

EVALUATING THREAT ASSESSMENT FOR MULTI-STAGE CYBER ATTACKS Shanchieh Jay Yang Rochester Institute on how to evaluate a threat assessment algorithm, especially for cyber security. Because of the variety and the constantly changing nature of hacker behavior and network vulnerabilities, a cyber threat assessment

Jay Yang, Shanchieh

329

Reduction of multi-stage disk models: Application to an industrial rotor  

E-Print Network (OSTI)

of the rotor into sectors. The bladed disks are coupled by intermediate rings which remove the problem that of a small portion, typically a bladed sector. This configuration no longer holds in real rotors due with multi-stage rotors. However, as underlined by Bladh et al.6 , the critical point is the choice

Boyer, Edmond

330

Temperature Influences Selective Mortality during the Early Life Stages of a Coral Reef Fish  

E-Print Network (OSTI)

L. Rankin, Su Sponaugle* Marine Biology and Fisheries, Rosenstiel School of Marine and Atmospheric Science (RSMAS)/University of Miami, Miami, Florida, United States of America Abstract For organisms with complex life cycles, processes occurring at the interface between life stages can disproportionately

Sponaugle, Su

331

A two-stage circumferential slot virtual impactor for bioaerosol concentration  

E-Print Network (OSTI)

of the slot. A CSVI can also fit a longer slot in a smaller footprint than a linear slot virtual impactor. A two-stage circumferential slot virtual impactor system has been designed and tested. The CSVI units are similar in principle to that tested by Haglund...

Isaguirre, Refugio Rey, IV

2009-06-02T23:59:59.000Z

332

Compact cold stage for micro-computerized tomography imaging of chilled or frozen samples  

SciTech Connect

High resolution X-ray microCT (computerized tomography) can be used to image a variety of objects, including temperature-sensitive materials. In cases where the sample must be chilled or frozen to maintain sample integrity, either the microCT machine itself must be placed in a refrigerated chamber, or a relatively expensive commercial cold stage must be purchased. We describe here the design and construction of a low-cost custom cold stage suitable for use in a microCT imaging system. Our device uses a boron nitride sample holder, two-stage Peltier cooler, fan-cooled heat sink, and electronic controller to maintain sample temperatures as low as ?25?°C ± 0.2?°C for the duration of a tomography acquisition. The design does not require modification to the microCT machine, and is easily installed and removed. Our custom cold stage represents a cost-effective solution for refrigerating CT samples for imaging, and is especially useful for shared equipment or machines unsuitable for cold room use.

Hullar, Ted; Anastasio, Cort, E-mail: canastasio@ucdavis.edu [Department of Land, Air, and Water Resources, University of California, Davis, California 95616 (United States)] [Department of Land, Air, and Water Resources, University of California, Davis, California 95616 (United States); Paige, David F. [Paige Instruments, Woodland, California 95776 (United States)] [Paige Instruments, Woodland, California 95776 (United States); Rowland, Douglas J. [Center for Molecular and Genomic Imaging, Department of Biomedical Engineering, University of California, Davis, California 95616 (United States)] [Center for Molecular and Genomic Imaging, Department of Biomedical Engineering, University of California, Davis, California 95616 (United States)

2014-04-15T23:59:59.000Z

333

Coal characterisation for \\{NOx\\} prediction in air-staged combustion of pulverised coals  

Science Journals Connector (OSTI)

A series of world-traded coal samples has been tested using the Imperial College high temperature wire mesh apparatus (HTWM) in order to assess the relationship between high temperature (1600°C) char nitrogen content and \\{NOx\\} formation in Hemweg Power Station (in the Netherlands) using deep furnace air staging. A linear relationship between high temperature char nitrogen and \\{NOx\\} formation has been confirmed. These results suggest that high temperature char N content is the main factor limiting \\{NOx\\} emissions with deep air-staged combustion. Char N and (hence apparently deep air-staged NOx) can be predicted with an accuracy of approximately ±20% for most coals from the coal proximate and ultimate analysis—but this might not be sufficient for stations operating close to their emission limits. Measuring high temperature char N directly reduces the likely uncertainty in deep air-staged \\{NOx\\} emissions for coals (and most blends) to approximately ±10%. Its use should be considered on a routine basis for coal selection on plants employing this technology.

C.K. Man; J.R. Gibbins; J.G. Witkamp; J. Zhang

2005-01-01T23:59:59.000Z

334

Removal of River-Stage Fluctuations from Well Response Using Multiple-Regression  

SciTech Connect

Many contaminated unconfined aquifers are located in proximity to river systems. In groundwater studies, the physical presence of a river is commonly represented as a transient-head boundary that imposes hydrologic responses within the intersected unconfined aquifer. The periodic fluctuation of river-stage height at the boundary produces associated responses within the adjacent aquifer system, the magnitude of which is a function of the existing well, aquifer, boundary conditions, and river-stage fluctuation characteristics. The presence of well responses induced by the river stage can significantly limit characterization and monitoring of remedial activities within the stress-impacted area. This paper demonstrates the use of a time-domain, multiple-regression, convolution (superposition) method to develop well/aquifer river response function (RRF) relationships. Following RRF development, a multiple-regression deconvolution correction approach can be applied to remove river-stage effects from well water-level responses. Corrected well responses can then be analyzed to improve local aquifer characterization activities in support of optimizing remedial actions, assessing the area-of-influence of remediation activities, and determining mean groundwater flow and contaminant flux to the river system.

Spane, Frank A.; Mackley, Rob D.

2011-11-01T23:59:59.000Z

335

Probabilistic Simulation of Multi-Stage Decisions for Operation of a Fractionated Satellite Mission  

E-Print Network (OSTI)

decisions. We use a generic Department of Defense (DoD) terrestrial weather satellite program as a caseProbabilistic Simulation of Multi-Stage Decisions for Operation of a Fractionated Satellite Mission of net present value for a fractionated satellite constellation. The goal is to begin development

Alonso, Juan J.

336

Identification and compensation of friction for a dual stage positioning system  

E-Print Network (OSTI)

increases the accuracy of the read/write head in hard disk drives. A scaled up version of the dual stage actuator is considered as the test bed for this thesis. Friction is present in all electromechanical systems. This thesis deals with modelling...

Thimmalapura, Satish Voddina

2005-11-01T23:59:59.000Z

337

Minotaur V is a 5-stage evolutionary version of the Minotaur IV Space  

E-Print Network (OSTI)

into high energy trajectories, including Geosynchronous Transfer Orbits (GTO) as well as translunar success ensured by mature systems and processes including Orbital's rigorous mission assurance programFM): - GTO: 640 kg - TLI: 447 kg · 3-Axis stabilized upper stage (Star 37FMV): - GTO: 594 kg - TLI

Christian, Eric

338

Development of a thermal switch for faster cool-down by two-stage cryocooler q  

E-Print Network (OSTI)

. In addition, the conduction-cooled systems are more ecient with respect to the energy consumption, mainly of the large refrigeration capacity at the ®rst stage. At cryogenic temperatures, however, the thermal for relatively small superconducting systems [1±4]. Since no liquid cryogens are necessary, the systems

Chang, Ho-Myung

339

A STAGED MUON-BASED FACILITY TO ENABLE INTENSITY AND ENERGY FRONTIER SCIENCE IN THE US*  

E-Print Network (OSTI)

A STAGED MUON-BASED FACILITY TO ENABLE INTENSITY AND ENERGY FRONTIER SCIENCE IN THE US* Jean. It requires facilities at both high energy and high intensity frontiers. Neutrino oscillations are irrefutable precision flavour physics at the high intensity frontier. At the high energy frontier, a multi-TeV lepton

McDonald, Kirk

340

Reverse osmosis concentrate treatment by a PAC countercurrent four-stage adsorption/MF hybrid process  

Science Journals Connector (OSTI)

Abstract In this study, in order to reduce the impact of reverse osmosis concentrate (ROC) on the receiving body of water and/or improve the recovery rate of reverse osmosis (RO) system by reusing the treated ROC as a feeding, a powdered activated carbon (PAC) countercurrent four-stage adsorption/MF hybrid process was developed for organic removal from ROC. The process could achieve good organic removal at lower PAC consumption. For dissolved organic carbon (DOC) removal efficiency of 70.0%, the PAC dose was 21.6% less than that in countercurrent two-stage adsorption and 50.9% less than that in single-stage adsorption. The calculation method for correlating removal efficiency and PAC dose was deduced and validated. The validation result showed that the relative error between the average experimental DOC removal efficiency and the calculated one was less than 5% throughout the experiment, exhibiting good accuracy for the calculation method. Compared with countercurrent two-stage adsorption, the membrane fouling in the new process could be mitigated to a certain extent. The total number of sub-cycles in a cycle (n) influenced the hydraulic retention time (HRT) and the total volume of the reactors. Results showed that the HRT increased as n increased.

Xiaozhu Wei; Ping Gu; Guanghui Zhang

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

INSTITUT NEEL Grenoble Proposition de stage Master 1 -Anne universitaire 2010-2011  

E-Print Network (OSTI)

candidat une formation à des techniques expérimentales de pointe : nanofabrication, cryogénie au mK, électronique ultra-bas bruit, ... . Période envisagée pour le stage : Février 2011 - Août 2011. #12;

Canet, Léonie

342

Evalutaion of Multi-Stage Sandstone Acidizing Uging an Organic Mud Acid and a Clay Stabalizer  

E-Print Network (OSTI)

and clay particles. The purpose of this study is to present and evaluate multi-stage acid injection into the Bandera sandstone cores to remove formation damage. In this study, coreflood experiments were conducted on Bandera sandstone cores (1.5 in. x 6 in...

Sakipour, Armin

2013-05-29T23:59:59.000Z

343

Staged flocculation followed by thickening and dewatering of flotation tailings and uncleaned sludges  

SciTech Connect

A multistage flocculation process using either polyacrylamide (PAA) or polyethylene oxide, for the removal or recovery of solids from sludges and coal washings is described. Optimization number of flocculation stages must be determined experimentally and depends upon intial solids concentration charge rate, hydrocyclone diameter, agitation speeds and the consumption rate of the flocculation agent.

Borts, M.A.; El'skaya, N.S.; Lur'e, I.G.

1982-11-06T23:59:59.000Z

344

Hydrogen production from cellulose in a two-stage process combining fermentation and electrohydrogenesis  

E-Print Network (OSTI)

Hydrogen production from cellulose in a two-stage process combining fermentation primarily of: acetic, lactic, succinic, and formic acids and ethanol. An additional 800 Ã? 290 mL H2/g #12;1. Introduction Biohydrogen production from cellulose has received consid- erable attention

345

EFFECTS OF COPPER ON EARLY LIFE HISTORY STAGES OF NORTHERN ANCHOVY, ENGRAULIS MORDAX  

E-Print Network (OSTI)

EFFECTS OF COPPER ON EARLY LIFE HISTORY STAGES OF NORTHERN ANCHOVY, ENGRAULIS MORDAX D. W. RICE, JR.,l F. L. HARRISON,l AND A. JEARLD, JR.2 ABSTRACT The sensitivity to copper of embryonic and larval total copper concentrations and the percent copper in labile forms were determined. From the cumulative

346

Programmable Mechanically Assisted Geometric Deformations of Glassy Two-Stage Reactive Polymeric Materials  

Science Journals Connector (OSTI)

† Department of Chemical and Biological Engineering, University of Colorado, UCB 596, Boulder, Colorado 80309, United States ... After a stage II flood-cure of the pendant methacrylate functionalities, a significant increase in the modulus (up to 22 MPa) and Tg (above 125 °C) was observed (DMA data in Figure S5 in the Supporting Information). ...

Maciej Podgórski; Devatha P. Nair; Shunsuke Chatani; Gayla Berg; Christopher N. Bowman

2014-01-10T23:59:59.000Z

347

Mixed-level embedding and JIT compilation for an iteratively staged DSL  

Science Journals Connector (OSTI)

This paper explores how to implement an iteratively staged domain-specific language (DSL) by embedding into a functional language. The domain is modelling and simulation of physical systems where models are expressed in terms of non-causal differential-algebraic ...

George Giorgidze; Henrik Nilsson

2010-01-01T23:59:59.000Z

348

SYSTEMS DIVISION RESEARCH 2013 1 Abstract--This paper presents the initial stage of work  

E-Print Network (OSTI)

SYSTEMS DIVISION RESEARCH 2013 1 1 Abstract--This paper presents the initial stage of work carried modelling and a brief idea about the future work have been analysed. I. INTRODUCTION The initial phase of the work was to develop a simple rail vehicle model to understand the dynamics of a rail vehicle system

349

Propagating Uncertainty in Solar Panel Performance for Life Cycle Modeling in Early Stage Design  

E-Print Network (OSTI)

Propagating Uncertainty in Solar Panel Performance for Life Cycle Modeling in Early Stage Design. This work is conducted in the context of an amorphous photovoltaic (PV) panel, using data gathered from the National Solar Radiation Database, as well as realistic data collected from an experimental hardware setup

Yang, Maria

350

Shotgun DNA microarrays and stage-specic gene expression in Plasmodium falciparum malaria  

E-Print Network (OSTI)

, labour intensive, and expensive to propagate. Second, the experimental power of transfection technology stages can be transfected, gene disruptions are only possible for non-essential genes, as this part there is no negative selection system. Transfection ef®- ciencies in P. falciparum are so poor that no gene function

351

Identifying the optimal capital structure for a second stage growth company using mezzanine financing  

Science Journals Connector (OSTI)

This paper demonstrates how mezzanine financing can be used to minimise the weighted average cost of capital for a second stage growth firm waiting to obtain equity capital from an IPO. A model is provided that allows entrepreneurs to fit their available mezzanine financing cost structure to a continuous function to determine the appropriate amount of mezzanine financing for planning purposes.

John M. Clark; Randy I. Anderson

2003-01-01T23:59:59.000Z

352

Solar Trough Organic Rankine Electricity System (STORES) Stage 1: Power Plant Optimization and Economics; November 2000 -- May 2005  

SciTech Connect

Report regarding a Stage 1 Study to further develop the concept of the Solar Trough Organic Rankine Cycle Electricity Systems (STORES).

Prabhu, E.

2006-03-01T23:59:59.000Z

353

A Multidisciplinary Approach for Identifying Stage-specific Transcription Factor Binding Sites in the Irish Potato Famine Pathogen, Phytophthora infestans  

E-Print Network (OSTI)

stages in the Irish potato famine pathogen, Phytophthoraelements in Irish potato famine pathogen Phytophthorastages in the Irish potato famine pathogen, Phytophthora

Roy, Sourav

2011-01-01T23:59:59.000Z

354

GEOPHYSICAL INVESTIGATIONS OF THE ARCHAEOLOGICAL RESOURCES AT THE POWELL STAGE STATION  

SciTech Connect

Within the boundaries of the Idaho National Laboratory, an ongoing archaeological investigation of a late 19th century stage station was expanded with the use of Electro-Magnetic and Magnetic geophysical surveying. The station known as the Powell Stage Station was a primary transportation hub on the Snake River Plain, bridging the gap between railroad supply depots in Blackfoot, Idaho and booming mining camps throughout Central Idaho. Initial investigations have shown a strong magnetic signature from a buried road and previously unknown features that were not detected by visual surface surveys. Data gained from this project aids in federally directed cultural resource and land management and use requirements and has contributed additional information for archeological interpretation and cultural resource preservation.

Hollie K. Gilbert; Julie B. Braun; Brenda R. Pace; Gail Heath; Clark Scott

2009-04-01T23:59:59.000Z

355

The early stages of solid-state reactions in Ti/Al multilayer films  

SciTech Connect

The authors have investigated the solid-state reaction of Ti/Al multilayer films by x-ray diffraction (XRD) and differential scanning calorimetry (DSC), with focus on the early stages of the reaction provided by samples with pair thicknesses in the range 5--40 nm. This reaction, which results in formation of TiAl{sub 3} with metastable L1{sub 2} structure, can be modeled by a nucleation and growth process on the basis of the Johnson-Mehl-Avrami theory, with a reaction-order parameter n {approx} 1. These observations indicate the significance of nucleation barriers even at early stages of solid-state reactions, and suggests that the phenomena of phase selection and formation of metastable phases can result from the presence of nucleation barriers.

Michaelsen, C.; Woehlert, S.; Bormann, R. [GKSS Research Center, Geesthacht (Germany). Inst. for Materials Research; Barmak, K. [Lehigh Univ., Bethlehem, PA (United States). Dept. of Materials Science and Engineering

1996-12-31T23:59:59.000Z

356

HRI catalytic two-stage liquefaction (CTSL) process materials: chemical analysis and biological testing  

SciTech Connect

This report presents data from the chemical analysis and biological testing of coal liquefaction materials obtained from the Hydrocarbon Research, Incorporated (HRI) catalytic two-stage liquefaction (CTSL) process. Materials from both an experimental run and a 25-day demonstration run were analyzed. Chemical methods of analysis included adsorption column chromatography, high-resolution gas chromatography, gas chromatography/mass spectrometry, low-voltage probe-inlet mass spectrometry, and proton nuclear magnetic resonance spectroscopy. The biological activity was evaluated using the standard microbial mutagenicity assay and an initiation/promotion assay for mouse-skin tumorigenicity. Where applicable, the results obtained from the analyses of the CTSL materials have been compared to those obtained from the integrated and nonintegrated two-stage coal liquefaction processes. 18 refs., 26 figs., 22 tabs.

Wright, C.W.; Later, D.W.

1985-12-01T23:59:59.000Z

357

Alternatives generation and analysis for the Phase I intermediate waste feed staging system design requirements  

SciTech Connect

This alternatives generation and analysis (AGA) addresses the question: What is the design basis for the facilities required to stage low-level waste (LLW) feed to the Phase I private contractors? Alternative designs for the intermediate waste feed staging system were developed, analyzed, and compared. Based on these analyses, this document recommends installing mixer pumps in the central pump pit of double-shell tanks 241-AP-102 and 241-AP-104. Also recommended is installing decant/transfer pumps at these tanks. These recommendations have clear advantages in that they provide a low shedule impact/risk and the highest operability of all the alternatives investigated. This revision incorporates comments from the decision board.

Claghorn, R.D., Fluor Daniel Hanford

1997-02-06T23:59:59.000Z

358

Study of the regeneration stage of the MTG process in a pseudoadiabatic fixed bed reactor  

Science Journals Connector (OSTI)

The regeneration stage of a catalyst (prepared based on an HZSM-5 zeolite) has been studied in the process of transformation of methanol into hydrocarbons in a fixed bed reactor. The simulation of the operation requires knowledge of the longitudinal profile of coke content in the reactor at the end of the reaction stage. Longitudinal profiles of temperature, coke content and activity during the regeneration are calculated by solving the energy conservation equation in the reactor together with the kinetic equation for coke combustion and with the kinetic equation for reactivation (activity–coke content relationship). The results of the simulation have been experimentally verified in a laboratory unit provided with a pseudoadiabatic fixed bed reactor.

Andrés T Aguayo; Ana G Gayubo; Javier Ereña; Raquel Vivanco; Javier Bilbao

2003-01-01T23:59:59.000Z

359

Turning visual shapes into sounds: Early stages of reading acquisition revealed in the ventral occipitotemporal cortex  

Science Journals Connector (OSTI)

Abstract The exact role of the left ventral occipitotemporal cortex (VOTC) during the initial stages of reading acquisition is a hotly debated issue, especially regarding the comparative effect of learning on early stimulus-dependent vs. later task-dependent processes. We show that this controversy can be solved with high-temporal resolution intracerebral EEG recordings of the VOTC. We measured High-Frequency Activity (50–150 Hz) as a proxy of population-level spiking activity while participants learned Japanese Katakana symbols, and found that learning primarily affects top-down/task-dependent neural processing, after a few minutes only. In contrast, adaptation of early bottom-up/stimulus-dependent processing takes several days to adapt and provides the basis for fluent reading. Such evidence that two consecutive stages of neural processing, stimulus- and task-dependent are differentially affected by learning, can reconcile seemingly opposite hypotheses on the role of the VOTC during reading acquisition.

M. Perrone-Bertolotti; J.R. Vidal; L. de Palma; C.M. Hamamé; T. Ossandon; P. Kahane; L. Minotti; O. Bertrand; J.-P. Lachaux

2014-01-01T23:59:59.000Z

360

Three Stages Modeling of n-Octane Reforming Assisted by a Nonthermal Arc Discharge  

Science Journals Connector (OSTI)

Three Stages Modeling of n-Octane Reforming Assisted by a Nonthermal Arc Discharge ... After a description of the model and its main assumptions, a parametric analysis of plasma reformer performance addressing the influence of plasma volume, H2O/C ratio, O/C ratio, and input electric power is presented. ... Most of them were particularly dealt with technologies based on arc discharges. ...

José Gonzalez-Aguilar; Guillaume Petitpas; Alexandre Lebouvier; Jean-Damien Rollier; Adeline Darmon; Laurent Fulcheri

2009-09-08T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Exhuming Henry VIII's Court: The Tudor Household on the Jacobean Stage  

E-Print Network (OSTI)

erected above all these, King Henry the Seventh was royally seated in his imperiall robes; to whome King James (mounted on horseback) approaches, 1 The plague delayed James’s royal entry from 1603 to 1604... stage offers a particularly rich opportunity for engaging and reshaping public memory because it reaches a numerous and diverse cross-section of the London populace. In general, theater combines the various aspects that make up collective memory: place...

Moore, Gaywyn

2011-12-31T23:59:59.000Z

362

Parallel, staged opening switch power conditioning techniques for flux compression generator applications  

SciTech Connect

The Air Force Weapons Laboratory, working jointly with Los Alamos National Laboratory, has conducted a series of experiments directed at exploring composite, or staged, switching techniques for use in opening switches in applications which require the conduction of very high currents (or current densities) with very low losses for relatively long times (several tens of microseconds), and the interruption of these currents in much shorter times (ultimately a few hundred nanoseconds). This paper reports the results of those experiments.

Reinovsky, R.E.; Levi, P.S.; Bueck, J.C.; Goforth, J.H.

1985-01-01T23:59:59.000Z

363

Application of the theta method to distillation columns where one or more reactions occur per stage  

E-Print Network (OSTI)

per Stage Theta Method of Convergence K Method Calculation of Enthalpies of Mixtures Enthalpy Balances. Calculational Procedure 14 16 I7 20 25 28 38 44 Numerical Examples Example 1 Example 2 COLUMNS AT TOTAL REFLUX 44 45 51 64... OF TABLES TABLE Page Expressions for the Reaction Function R for Various Types of Reactions 29 Calculation of the Partial Derivatives 32 Statement of Example l. Solution of Example 1 Statement of Example 2. Solution of Example 2 46 53 59...

Izarraraz, Alicia

2012-06-07T23:59:59.000Z

364

Lysine Metabolism by the Mammary Gland of Lactating Goats at Two Stages of Lactation  

E-Print Network (OSTI)

) in response to an i.v. infusion of lysine (Lys) plus methionine (Met). At each stage of lactation [2-15 N] and [1-13 C; 6,6-2 H2] Lys kinetics were performed on the last day of 5-d i.v. infusion of saline higher in early than in late lactation, but LM infusion did not affect these variables. Regardless

Bequette, Brian J.

365

The effect of variable permeability on a two stage sand consolidation technique  

E-Print Network (OSTI)

Configuration 3 Location of Compressive Strength and Permeability Cores for Offset Configuration 4 Profile of Resin Composition Page 10 20 LIST OF TABLES Table 1 Results of a Single Stage, Low Rate Sand Consolidation Treatment Page 12 2 Results of a... in the surface equip- ment. The problem of sand production results in the petro- leum industry spending millions of dollars a year in search of a solution. ~ Epoxy resin sand consolidation methods are complicated by high permeability streaks in the reservoir...

Tobola, David Philip

1985-01-01T23:59:59.000Z

366

STAGES -ENSEIGNEMENT AU SECONDAIRE (BES) ANGLAIS LANGUE SECONDE (BEALS) Programme Dure / Rythme Calendrier Milieux de  

E-Print Network (OSTI)

STAGES - ENSEIGNEMENT AU SECONDAIRE (BES) ANGLAIS LANGUE SECONDE (BEALS) Programme Durée / Rythme'enseignante ou l'enseignant associé BES/BEALS STP 100 (2 cr) STP 111 (2 cr) Niveau 1 Valeur 1 10 jours 10 jours perlés (dont 1 journée au primaire pour le BEALS) Les mercredis 17 sept., 1er , 8, 22, 29 oct., 5, 19, 26

Spino, Claude

367

A FPTAS for a two-stage hybrid flow shop problem and optimal algorithms for identical jobs  

Science Journals Connector (OSTI)

In this paper, a two-machine two-stage flow shop problem with flexible tasks is considered. Each job has two tasks: the first task can be processed on either machine, called flexible task, while the second task must be processed on the second machine ... Keywords: Fully polynomial time approximation, Makespan, Scheduling, Two-stage flow shop

Qi Wei; Erfang Shan; Liying Kang

2014-03-01T23:59:59.000Z

368

Abstract--A mesochronous pipeline scheme is described in this paper. In a conventional pipeline scheme each pipeline stage  

E-Print Network (OSTI)

Abstract-- A mesochronous pipeline scheme is described in this paper. In a conventional pipeline scheme each pipeline stage operates on only one data set at a time. In the mesochronous scheme, pipeline stages operate on multiple data sets simultaneously. The clock period in conventional pipeline scheme

Delgado-Frias, José G.

369

High expression of CAI2, a 9p21-embedded long noncoding RNA, contributes to advanced-stage neuroblastoma.  

E-Print Network (OSTI)

a continuous outcome, a Kruskal-Wallis test used to test theFigure 4A, p=0.005, Kruskal-Wallis test comparing stage 4s,neuroblastoma (P=0.005, Kruskal-Wallis test, stage 4S, 1 and

2014-01-01T23:59:59.000Z

370

Abstract 5102: Telomeres and survival in stage III colon cancers: Findings from NCCTG N0147 (Alliance) study  

Science Journals Connector (OSTI)

...survival in stage III colon cancers: Findings from NCCTG N0147 (Alliance) study Nivedita Basu 1 Ruth A. Johnson 2 Qian Shi 2 Garth...survival in stage III colon cancers: Findings from NCCTG N0147 (Alliance) study. [abstract]. In: Proceedings of the 105th Annual...

Nivedita Basu; Ruth A. Johnson; Qian Shi; Garth D. Nelson; Julie M. Cunningham; Richard M. Goldberg; Frank A. Sinicrope; Daniel J. Sargent; Steven R. Alberts; Gloria M. Petersen; Stephen N. Thibodeau; Halcyon G. Skinner; Kristin Litzelman; Songwon Seo; Russell J. Vanderboom; Ronald E. Gangnon; Corinne D. Engelman; David N. Rider; Lisa A. Boardman

2014-10-01T23:59:59.000Z

371

Multi-stage axial-flux PM machine for wheel direct drive  

SciTech Connect

The design of direct-driven wheel motors must comply with diameter restriction due to housing the motor in a wheel rim and allow the achievement of very high torque density and overload capability. Slotless axial-flux permanent magnet machines (AFPMs) prove to be one best candidate for application in electric vehicles as direct-drive wheel motors, as in comparison with conventional machines they allow designs with higher compactness, lightness and efficiency. The paper presents a newly-conceived AFPM which has multi-stage structure and water-cooled ironless stator. In the proposed new topology of the machine the space formerly occupied by the toroidal core becomes a water duct, which removes heat directly from the interior surface of the stator winding. The high efficiency of the machine cooling arrangement allows long-term 100% overload operation and great reduction of the machine weight. The multistage structure of the machine is suited to overcome the restriction on the machine diameter and meet the torque required at the wheel shaft. The paper gives guidelines for the design of a multi-stage AFPM with water-cooled ironless stator, and describes characteristics of a two-stage prototype machine rated 220 Nm, 1,100 rpm.

Caricchi, F.; Crescimbini, F.; Mezzetti, F.; Santini, E. [Univ. of Rome La Sapienza (Italy). Dept. of Electrical Engineering

1995-12-31T23:59:59.000Z

372

Developing an inventor support service which performs early stage market and manufacturing evaluations. [Final Report  

SciTech Connect

American businesses are learning the difficult high cost lesson of ignoring production and market factors (producibility, unit product cost (UPC), marketability, etc) during the engineering design phase of product development. Studies have shown that the Japanese spend three times as long as Americans in the design feasibility and decision process of new product introductions and one third the amount of time in the implementation of those products. There is a 20 to 1 cost benefit on effort applied in the design phase versus the production phase of the product life cycle. The number one goal of this project was to establish an organization that has, as one of its purposes, the providing of services responsive to the needs of independent inventors. The number two goal was to demonstrate the value of providing marketing and manufacturing counsel at an early stage in the product development process. The first study goal was met by providing the materials and information necessary to establish an evaluation team and an organization to handle such evaluations. The second study goal was met by demonstrating the impact of early market analysis and manufacturing considerations on product design and therefore on the description of the invention for four different inventions. These inventions were selected at various stages of development. Regardless of stage of development, the marketing and manufacturing reviews resulted in significant changes in design and/or market positioning.

Not Available

1991-10-01T23:59:59.000Z

373

Developing an inventor support service which performs early stage market and manufacturing evaluations. Final report  

SciTech Connect

American businesses are learning the difficult high cost lesson of ignoring production and market factors (producibility, unit product cost (UPC), marketability, etc) during the engineering design phase of product development. Studies have shown that the Japanese spend three times as long as Americans in the design feasibility and decision process of new product introductions and one third the amount of time in the implementation of those products. There is a 20 to 1 cost benefit on effort applied in the design phase versus the production phase of the product life cycle. The number one goal of this project was to establish an organization that has, as one of its purposes, the providing of services responsive to the needs of independent inventors. The number two goal was to demonstrate the value of providing marketing and manufacturing counsel at an early stage in the product development process. The first study goal was met by providing the materials and information necessary to establish an evaluation team and an organization to handle such evaluations. The second study goal was met by demonstrating the impact of early market analysis and manufacturing considerations on product design and therefore on the description of the invention for four different inventions. These inventions were selected at various stages of development. Regardless of stage of development, the marketing and manufacturing reviews resulted in significant changes in design and/or market positioning.

Not Available

1991-10-01T23:59:59.000Z

374

Two stage, low temperature, catalyzed fluidized bed incineration with in situ neutralization for radioactive mixed wastes  

SciTech Connect

A two stage, low temperature, catalyzed fluidized bed incineration process is proving successful at incinerating hazardous wastes containing nuclear material. The process operates at 550{degrees}C and 650{degrees}C in its two stages. Acid gas neutralization takes place in situ using sodium carbonate as a sorbent in the first stage bed. The feed material to the incinerator is hazardous waste-as defined by the Resource Conservation and Recovery Act-mixed with radioactive materials. The radioactive materials are plutonium, uranium, and americium that are byproducts of nuclear weapons production. Despite its low temperature operation, this system successfully destroyed poly-chlorinated biphenyls at a 99.99992% destruction and removal efficiency. Radionuclides and volatile heavy metals leave the fluidized beds and enter the air pollution control system in minimal amounts. Recently collected modeling and experimental data show the process minimizes dioxin and furan production. The report also discusses air pollution, ash solidification, and other data collected from pilot- and demonstration-scale testing. The testing took place at Rocky Flats Environmental Technology Site, a US Department of Energy facility, in the 1970s, 1980s, and 1990s.

Wade, J.F.; Williams, P.M.

1995-05-17T23:59:59.000Z

375

Tar evolution in a two stage fluid bed–plasma gasification process for waste valorization  

Science Journals Connector (OSTI)

Abstract This work focuses on systematic studies of the plasma reforming of newly evolved vapors from a fluid bed gasifier, and on the resulting evolution of individual gaseous cracking products to hydrogen-rich syngas. The aim of this study is to compare some previously developed mechanisms of thermal cracking and to identify the main elementary reactions and the most sensible ones for tar decomposition in a two-stage process. Evaluation of plasma chemistry is performed by a comparison between experimental data and thermal kinetic predicted results. Distribution analysis of condensable organics shows that for all the representative species, the levels of tars are distinct in the first stage and almost negligible after the plasma treatment. Under the given reaction conditions, the organic cracking products such as methane and C2-species are completely converted to carbon monoxide and hydrogen, and no soot significantly formed. Oxygen atoms initially formed from CO2 were identified as the major active species involved in the oxidative decomposition of hydrocarbon intermediates and soot precursors. As a result, a two-stage system shows better reforming results, large treatment capacity and almost complete carbon conversion.

Massimiliano Materazzi; Paola Lettieri; Luca Mazzei; Richard Taylor; Chris Chapman

2014-01-01T23:59:59.000Z

376

Two-stage repository development at Yucca Mountain: an engineering feasibility study  

SciTech Connect

The Nuclear Waste Policy Act of 1982 requires that the first repository for disposal of high-level radioactive waste be ready to receive waste by January 31, 1998. The preliminary designs of candidates for the first repository include a single waste-handling building constructed in one stage. After considering possible approaches to repository construction, the Department of Energy has proposed in its draft Mission Plan to construct the first repository in two steps to increase confidence in meeting the 1998 deadline. Therefore, the Department of Energy has requested the preparation of this engineering study to verify the validity of the two-stage approach to repository construction. This approach involves concurrent construction of two waste-handling buildings. The first would be completed in time to accept the equivalent of 400 MTU/y of waste by January 31, 1998. It would operate for 5 y, during which time construction of a full-capacity, 3000-MTU/y waste-handling building would be completed. The design includes six accesses to the underground facility: four vertical shafts and two ramps. The principal conclusion derived from this study is that two-stage repository construction can allow receipt and disposal of the 400 MTU/y of waste by January 31, 1998. Four alternate concepts have been explored to determine whether savings in costs could be accomplished. All four alternate concepts appear technically feasible and are potentially more cost effective than the reference approach.

MacDougall, H.R. (comp.)

1985-12-01T23:59:59.000Z

377

NETL: Robust and Energy Efficient Dual-Stage Membrane-Based Process for  

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

Robust and Energy Efficient Dual-Stage Membrane-Based Process for Enhanced CO2 Capture Robust and Energy Efficient Dual-Stage Membrane-Based Process for Enhanced CO2 Capture Project No.: DE-FE0013064 Media and Process Technology, Inc is developing a "one-box process" that integrates the water-gas-shift (WGS) reaction in a membrane reactor (MR) with hydrogen recovery for CO2 capture in integrated gasification combined cycle (IGCC) power systems. The process utilizes previously developed hydrogen (H2)-selective carbon molecular sieve membranes (CMS) and novel palladium (Pd) and Pd-alloy membranes for efficient residual H2 recovery. The bench-scale system will operate with simulated syngas mixtures first, and then be evaluated with real syngas at the National Carbon Capture Center for performance and long-term operation stability. Coal-derived syngas, after quenching and particulate removal, will undergo tar and contaminant removal, carbon monoxide conversion via WGS with a sour shift catalyst, and H2 separation in a single step. The bulk of the H2 produced (with purity adequate for downstream power generation) will be recovered in the permeate stream of this novel WGS/MR. The retentate stream (containing the residual H2 and the bulk of CO2 produced), after undergoing a conventional cold gas clean up for the removal of tar and contaminants, will be sent for CO2 compression for storage or use. Through the CO2 compression train, the residual H2 will be further recovered with a highly selective-Pd alloy membrane. A high degree of H2 (and consequently CO2) recovery can be achieved with the two-step membrane process. The strengths of CMS and Pd membranes are fully utilized while their weaknesses are compensated-for by the synergy that is being created by this novel two-stage process.

378

A Practical Approach to Modeling Managerial Risk Aversion in Real Option Valuation for Early Stage Investments ?  

E-Print Network (OSTI)

In this work, we build on a previous real options approach that utilizes managerial cash-flow estimates to value early stage project investments, but accounting for managerial risk aversion. We introduce a market sector indicator, which is assumed to be correlated to a tradeable market index, which, through a mapping function, drives and replicates the cash-flow estimates. The mapping allows us to link the cash-flow estimates to many theoretical real options frameworks which currently can not be applied in practice. Through indifference pricing we are able to model the effect of managerial risk aversion for any given set of cash-flow estimates.

Sebastian Jaimungal; Yuri Lawryshyn

379

Two-stage fixed-bed gasifier with selectable middle gas off-take point  

DOE Patents (OSTI)

A two-stage fixed bed coal gasifier wherein an annular region is in registry with a gasification zone underlying a devolatilization zone for extracting a side stream of high temperature substantially tar-free gas from the gasifier. A vertically displaceable skirt means is positioned within the gasifier to define the lower portion of the annular region so that vertical displacement of the skirt means positions the inlet into the annular region in a selected location within or in close proximity to the gasification zone for providing a positive control over the composition of the side stream gas.

Strickland, Larry D. (Morgantown, WV); Bissett, Larry A. (Morgantown, WV)

1992-01-01T23:59:59.000Z

380

Three-phase optimisation design of an electric car body at conceptual design stage  

Science Journals Connector (OSTI)

A three-phase optimisation design method is proposed in the paper. It is composed of two steps of topology optimisation and one step of size optimisation, and used for design of a mini electric car Body In White (BIW) at conceptual design stage. The method provides an opportunity to comprehend performances of the body construction under different load conditions in detail. Final result of the optimised BIW achieves 31% weight reduction with improved stiffness, strength and the first-order frequency compared with previous design.

Dafeng Jin; Jin Chen; Weiwei Qiao

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

85,000-GPM, single-stage, single-suction LMFBR intermediate centrifugal pump  

SciTech Connect

The mechanical and hydraulic design features of the 85,000-gpm, single-stage, single-suction pump test article, which is designed to circulate liquid-sodium coolant in the intermediate heat-transport system of a Large-Scale Liquid Metal Fast Breeder Reactor (LS-LMFBR), are described. The design and analytical considerations used to satisfy the pump performance and operability requirements are presented. The validation of pump hydraulic performance using a hydraulic scale-model pump is discussed, as is the featute test for the mechanical-shaft seal system.

Fair, C.E.; Cook, M.E. Huber, K.A.; Rohde, R.

1983-01-01T23:59:59.000Z

382

Commercialization and Late-Stage Development of a Semisynthetic Antifungal API: Anidulafungin/d-Fructose (Eraxis)  

Science Journals Connector (OSTI)

Commercialization and Late-Stage Development of a Semisynthetic Antifungal API: Anidulafungin/d-Fructose (Eraxis) ... In first-generation processes, the reaction medium was initially quenched into acetonitrile to precipitate crude 1. ... Clarification, however, is necessary for this API to render it speck-free from extraneous particulate matter, but armed with the above information the initial dissolution process operation was carried out at the lower end of the allowable process range to facilitate minimal formation of 9 during processing as a practical compromise. ...

Timothy Norris; John VanAlsten; Stephen Hubbs; Marcus Ewing; Weiling Cai; Matthew L. Jorgensen; Jon Bordner; Grace O. Jensen

2008-04-29T23:59:59.000Z

383

Behavioral-attitudinal consistency as it relates to Kohlbergs stages of moral development  

E-Print Network (OSTI)

and guidance in this thes1s. A special note of thanks is extended to Bets Beck and Charlotte Wal stan for serving as confederates in this study. Spec1al thanks is extended to Mrs. Ruth Ann Powell and Gladys Douglas for the1r willingness to type when time...1r behavior affects other people. Stage 2 thinking is characterized by reciprocity, but rec1procal relationships are still pragmatic in nature. Doing a good deed 1s instrumental in increasing the likelihood of rece1ving a good deed 1n return. Indi...

Bailey, Sara Dolores

2012-06-07T23:59:59.000Z

384

Inspection of integrated two-stage liquefaction products by petroleum assay  

SciTech Connect

A series of standard petroleum inspection tests was performed on the net product and fractions thereof from the direct liquefaction of Pittsburgh seam (Ireland Mine) coal. The product examined was generated during Run 259, period G in the catalytic/catalytic, close-coupled Integrated Two-Stage Liquefaction operating mode at the Advanced Coal Liquefaction Tests Facility in Wilsonville, Alabama. In this paper, the results of these inspection tests are reported and compared with American Society for Testing and Materials (ASTM) specifications for gasoline, jet fuel and diesel fuel. Qualitative refining requirements are inferred from the data.

Winschel, R.A. [Consolidation Coal Co., Library, PA (United States); Zhou, P. [Burns and Roe Services Corp., Pittsburgh, PA (United States)

1991-12-31T23:59:59.000Z

385

Inspection of integrated two-stage liquefaction products by petroleum assay  

SciTech Connect

A series of standard petroleum inspection tests was performed on the net product and fractions thereof from the direct liquefaction of Pittsburgh seam (Ireland Mine) coal. The product examined was generated during Run 259, period G in the catalytic/catalytic, close-coupled Integrated Two-Stage Liquefaction operating mode at the Advanced Coal Liquefaction Tests Facility in Wilsonville, Alabama. In this paper, the results of these inspection tests are reported and compared with American Society for Testing and Materials (ASTM) specifications for gasoline, jet fuel and diesel fuel. Qualitative refining requirements are inferred from the data.

Winschel, R.A. (Consolidation Coal Co., Library, PA (United States)); Zhou, P. (Burns and Roe Services Corp., Pittsburgh, PA (United States))

1991-01-01T23:59:59.000Z

386

Impact of the CE mark approval on exit opportunities and validation for early stage medical device companies  

E-Print Network (OSTI)

The aim of this thesis was to look at the impact of acquiring the CE marking approval on the outcome of early stage medical device companies, specifically its impact on strategic acquisition opportunities and on valuation. ...

Kothari, Ashish (Ashish Shrikant)

2011-01-01T23:59:59.000Z

387

Abstract 2148: Novel therapy of liver metastases of cancer using Abraxane loaded into Multi-Stage Nanovector.  

Science Journals Connector (OSTI)

...Abraxane loaded into Multi-Stage Nanovector. Tomonori Tanei Mauro Ferrari Biana Godin Kenji Yokoi Methodist Hospital Research...trials using MSV-ABX. Citation Format: Tomonori Tanei, Mauro Ferrari, Biana Godin, Kenji Yokoi. Novel therapy of liver...

Tomonori Tanei; Mauro Ferrari; Biana Godin; Kenji Yokoi

2013-08-14T23:59:59.000Z

388

Stochastic Modeling for Uncertainty Analysis and Multiobjective Optimization of IGCC System with Single-Stage Coal Gasification  

Science Journals Connector (OSTI)

The work initially focuses on developing a computational fluid dynamics (CFD) model for the single-stage coal gasifier, which is a part of the IGCC system. ... Medium pressure (MP) steam is produced from the heat liberated from this reaction. ...

Yogendra Shastri; Urmila Diwekar

2010-11-22T23:59:59.000Z

389

To what extent is social media exposure correlated with financial performance for early stage digital consumer-facing startups?  

E-Print Network (OSTI)

It is very hard to identify and evaluate very early stage investment opportunities in disruptive digital consumer-facing startups as they usually don't have any meaningful revenue data yet. However, these growing startups ...

Genre, Solene

2014-01-01T23:59:59.000Z

390

www.seedco.in Presentation of Seedcoin, the world's first seed-stage virtual incubator for Bitcoin startups  

E-Print Network (OSTI)

www.seedco.in Presentation of Seedcoin, the world's first seed-stage virtual incubator for Bitcoin, the disruptive power of Bitcoin and cryptocurrencies and their potential applications in our everyday lives

Gesbert, David

391

Design and Synthesis of a Photoaromatization-Based Two-Stage Photobase Generator for Pitch Division Lithography  

E-Print Network (OSTI)

Design and Synthesis of a Photoaromatization-Based Two-Stage Photobase Generator for Pitch Division in such a resist has twice the pitch of the projected mask image. Unfortunately, when sub-100 nm features

Turro, Nicholas J.

392

Single-stage conversion of associated petroleum gas and natural gas to syngas in combustion and auto-ignition processes  

Science Journals Connector (OSTI)

Single-stage conversion of alkane mixtures simulating associated petroleum gas (APG) to syngas is studied in a static installation and ... in a flow reactor based on the rocket combustion chamber. Yields of the d...

Yu. A. Kolbanovskii; I. V. Bilera; I. V. Rossikhin…

2011-12-01T23:59:59.000Z

393

Design of a demand driven multi-item-multi-stage manufacturing system : production scheduling, WIP control and Kanban implementation  

E-Print Network (OSTI)

The project is conducted in a multi-item-multi-stage manufacturing system with high volume products. The objectives are to optimize the inventory structure and improve production scheduling process. The stock building plan ...

Zhou, Xiaoyu, M. Eng Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

394

Experimental characterization of an industrial pulverized coal-fired furnace under deep staging conditions  

SciTech Connect

Measurements have been performed in a 300 MWe, front-wall-fired, pulverized-coal, utility boiler. This boiler was retrofitted with boosted over fire air injectors that allowed the operation of the furnace under deeper staging conditions. New data are reported for local mean gas species concentration of O{sub 2}, CO, CO{sub 2}, NOx, gas temperatures and char burnout measured at several ports in the boiler including those in the main combustion and staged air regions. Comparisons of the present data with our previous measurements in this boiler, prior to the retrofitting with the new over fire system, show lower O{sub 2} and higher CO concentrations for the new situation as a consequence of the lower stoichiometry in the main combustion zone associated with the present boiler operating condition. Consistently, the measured mean NOx concentrations in the main combustion zone are now lower than those obtained previously, yielding emissions below 500 mg/Nm{sup 3}at 6% O{sub 2}. Finally, the measured values of particle burnout at the furnace exit are acceptable being those measured in the main combustion zone comparable with those obtained with the conventional over fire system.

Costa, M.; Azevedo, J.L.T. [Universidade Tecnica de Lisboa, Lisbon (Portugal)

2007-07-01T23:59:59.000Z

395

A comprehensive microbial insight into two-stage anaerobic digestion of food waste-recycling wastewater  

Science Journals Connector (OSTI)

Microbial community structures were assessed in a two-stage anaerobic digestion system treating food waste-recycling wastewater. The reactors were operated for 390 d at 10 different hydraulic retention times (HRTs) ranging from 25 to 4 d. Stable operation was achieved with the overall chemical oxygen demand (COD) removal efficiency of 73.0–85.9% at organic loading rate of up to 35.6 g COD/L·d. Performance of the acidogenic reactors, however, changed significantly during operation. This change coincided with transition of the bacterial community from one dominated by Aeriscardovia- and Lactobacillus amylovorus-related species to one dominated by Lactobacillus acetotolerans- and Lactobacillus kefiri-like organisms. In methanogenic reactors, the microbial community structures also changed at this stage along with the shift from Methanoculleus- to Methanosarcina-like organisms. This trend was confirmed by the non-metric multidimensional scaling joint plot of microbial shifts along with performance parameters. These results indicated that the overall process performance was relatively stable compared to the dynamic changes in the microbial structures and the acidogenic performance.

Seung Gu Shin; Gyuseong Han; Juntaek Lim; Changsoo Lee; Seokhwan Hwang

2010-01-01T23:59:59.000Z

396

Two-stage fuzzy-stochastic robust programming: a hybrid model for regional air quality management  

SciTech Connect

In this study, a hybrid two-stage fuzzy-stochastic robust programming (TFSRP) model is developed and applied to the planning of an air-quality management system. As an extension of existing fuzzy-robust programming and two stage stochastic programming methods, the TFSRP can explicitly address complexities and uncertainties of the study system without unrealistic simplifications. Uncertain parameters can be expressed as probability density and/or fuzzy membership functions, such that robustness of the optimization efforts can be enhanced. Moreover, economic penalties as corrective measures against any infeasibilities arising from the uncertainties are taken into account. This method can, thus, provide a linkage to predefined policies determined by authorities that have to be respected when a modeling effort is undertaken. In its solution algorithm, the fuzzy decision space can be delimited through specification of the uncertainties using dimensional enlargement of the original fuzzy constraints. The developed model is applied to a case study of regional air quality management at two coal-fired power plants considered as major sulfur dioxide emission sources. The results indicate that reasonable solutions have been obtained. The solutions can be used for further generating pollution-mitigation alternatives with minimized system costs and for providing a more solid support for sound environmental decisions. 61 refs., 7 figs., 6 tabs.

Yongping Li; Guo H. Huang; Amornvadee Veawab; Xianghui Nie; Lei Liu [University of Regina, Regina, SK (Canada). Environmental Systems Engineering Program

2006-08-15T23:59:59.000Z

397

A two-stage supply chain DEA model for measuring container-terminal efficiency  

Science Journals Connector (OSTI)

Despite the growing amount of research into container-port operations and efficiency, much of the literature on the subject treats container ports and terminals as black box systems without examining the structure of their transformation and production processes. Research on the network and multi-stage structure of container-terminal operating systems is scarce and its applications in the context of port performance and benchmarking are even scarcer. In this paper, we argue that the container terminal production would be best modelled as a network of interrelated sub-processes and operating sites and develop a supply chain DEA model aimed at capturing the transformational process within the container-terminal system and across its sub-systems. We start by modelling container terminal operations as a container-flow process and analyse their site-specific and combined efficiency before formalising a two-stage supply chain DEA model to measure the efficiencies of both individual and network container terminal operations. Although, due to the unavailability of detailed operational data, this study is limited to container export flows only, the results provide further insight on the network structure of container-terminal operating systems and confirm the existence of disproportionate performances and efficiency levels between container-terminal operating sites and sub-processes.

Khalid Bichou

2011-01-01T23:59:59.000Z

398

Thermal component of residuum conversion in two-stage coal liquefaction  

SciTech Connect

An experimental investigation was conducted to ascertain the contribution of thermal reactions to the conversion of residuum in the hydroprocessing reactor of two-stage liquefaction processes. Feedstocks prepared from residuum produced at the Wilsonville Advanced Coal Liquefaction Test Facility (ACLTF) and solvents produced by the catalytic hydrotreatment of solvent obtained from the Wilsonville ACLTF were reacted in the absence of a catalyst at temperatures ranging from 720/sup 0/F to 850/sup 0/F. Detailed characterization of the composite feedstock and product samples as well as of three fractions of each obtained by vacuum distillation was performed to ascertain the extent of residuum conversion, heteroatom removal, and hydrogen rearrangement. The results showed that hydrogenation of the solvent portion of the hydrotreater feedstock neither enhances residuum conversion nor results in the transfer of hydrogen to the residuum. Higher reaction temperatures enhanced the removal of sulfur but had little effect on other reactions. The results suggest that the conversion of residuum in the hydroprocessing reactor of two-stage liquefaction processes must occur catalytically rather than thermally. 10 refs., 1 fig., 30 tabs.

Stiegel, G.J.; Lett, R.G.; Cillo, D.L.; Mima, J.A.; Tischer, R.E.; Narain, N.K.

1985-06-01T23:59:59.000Z

399

Electric and hybrid electric vehicles: A technology assessment based on a two-stage Delphi study  

SciTech Connect

To address the uncertainty regarding future costs and operating attributes of electric and hybrid electric vehicles, a two stage, worldwide Delphi study was conducted. Expert opinions on vehicle attributes, current state of the technology, possible advancements, costs, and market penetration potential were sought for the years 2000, 2010, and 2020. Opinions related to such critical components as batteries, electric drive systems, and hybrid vehicle engines, as well as their respective technical and economic viabilities, were also obtained. This report contains descriptions of the survey methodology, analytical approach, and results of the analysis of survey data, together with a summary of other factors that will influence the degree of market success of electric and hybrid electric vehicle technologies. Responses by industry participants, the largest fraction among all the participating groups, are compared with the overall responses. An evaluation of changes between the two Delphi stages is also summarized. An analysis of battery replacement costs for various types is summarized, and variable operating costs for electric and hybrid vehicles are compared with those of conventional vehicles. A market penetration analysis is summarized, in which projected market shares from the survey are compared with predictions of shares on the basis of two market share projection models that use the cost and physical attributes provided by the survey. Finally, projections of market shares beyond the year 2020 are developed by use of constrained logit models of market shares, statistically fitted to the survey data.

Vyas, A.D.; Ng, H.K.; Santini, D.J.; Anderson, J.L.

1997-12-01T23:59:59.000Z

400

Mesothelin Overexpression Is a Marker of Tumor Aggressiveness and Is Associated with Reduced Recurrence-Free and Overall Survival in Early-Stage Lung Adenocarcinoma  

Science Journals Connector (OSTI)

...Surgery and Center for Cell Engineering, Memorial Sloan-Kettering...Surgery; 2 Center for Cell Engineering; Departments of 3 Pathology...lung ADC: male sex, smoking history, increasing stage, morphologic...after adjustment for smoking history, stage, histologic subtype...

Stefan S. Kachala; Adam J. Bograd; Jonathan Villena-Vargas; Kei Suzuki; Elliot L. Servais; Kyuichi Kadota; Joanne Chou; Camelia S. Sima; Eva Vertes; Valerie W. Rusch; William D. Travis; Michel Sadelain; and Prasad S. Adusumilli

2014-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Roles of rpoD, spoIIF, spoIIJ, spoIIN, and sin in regulation of Bacillus subtilis stage II sporulation-specific transcription.  

Science Journals Connector (OSTI)

...spoIIN, and sin in regulation of Bacillus subtilis stage II sporulation-specific...California, Berkeley 94720. Bacillus subtilis strains containing defects in...spoIIN, and sin in regulation of Bacillus subtilis stage II sporulation-specific...

P Louie; A Lee; K Stansmore; R Grant; C Ginther; T Leighton

1992-06-01T23:59:59.000Z

402

New leading/trailing edge modulation strategies for two-stage AC/DC PFC adapters to reduce DC-link capacitor ripple current  

E-Print Network (OSTI)

AC/DC adapters mostly employ two-stage topology: Power Factor Correction (PFC) pre-regulation stage followed by an isolated DC/DC converter stage. Low power AC/DC adapters require a small size to be competitive. Among their components, the bulk DC...

Sun, Jing

2007-09-17T23:59:59.000Z

403

DOE/EA-1366; Environmental Assessment Santiam-Bethel Transmission Line Project (09/2001)  

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

Preliminary Environmental Assessment Preliminary Environmental Assessment Santiam-Bethel Transmission Line Project Bonneville Power Administration September 2001 Santiam-Bethel Transmission Line Project Responsible Agency: U.S. Department of Energy, Bonneville Power Administration (BPA) Name of Proposed Project: Santiam-Bethel Transmission Line Project Abstract: Bonneville Power Administration proposes to rebuild the first 17 miles of the Santiam-Chemawa transmission line from Santiam Substation to the line's connection to Portland General Electric's Bethel Substation. BPA would replace the existing single-circuit 230-kilovolt (kV) line with towers that could support two circuits. The existing line supplies both Bethel Substation and BPA's Chemawa Substation. The new lines would eliminate

404

EIS-0433-S1: Keystone XL Pipeline SEIS (Montana, South Dakota, and Nebraska)  

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

This EIS analyzes the potential environmental impacts of a revised proposal for the Keystone XL pipeline and related facilities. The proposed facilities would transport crude oil from the Western Canadian Sedimentary Basin and the Williston Basin to existing pipeline facilities near Steele City, Nebraska, for onward transport to markets in the Texas Gulf Coast area. DOE is a cooperating agency. DOE's Western Area Power Administration has jurisdiction over certain proposed transmission facilities relating to the proposal, including construction and operation of a portion of a 230-kilovolt transmission line and construction and operation of two new substations and the expansion of six existing substations.

405

EIS-0477: San Juan Basin Energy Connect Project, San Juan County, New Mexico and La Plata County, Colorado  

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

The Department of the Interior’s Bureau of Land Management is preparing an EIS to evaluate the potential environmental impacts of a proposal to construct a 230-kilovolt transmission line from the Farmington area in northwest New Mexico to Ignacio, Colorado, to relieve transmission constraints, serve new loads, and offer economic development through renewable energy development in the San Juan Basin. DOE’s Western Area Power Administration is a cooperating agency; the proposed transmission line would require an interconnection with Western's Shiprock Substation, near Farmington, and a new Three Rivers Substation on Western's reserved lands.

406

Removal of oxides of nitrogen from gases in multi-stage coal combustion  

DOE Patents (OSTI)

Polluting NO.sub.x gas values are removed from off-gas of a multi-stage coal combustion process which includes an initial carbonizing reaction, firing of char from this reaction in a fluidized bed reactor, and burning of gases from the carbonizing and fluidized bed reactions in a topping combustor having a first, fuel-rich zone and a second, fuel-lean zone. The improvement by means of which NO.sub.x gases are removed is directed to introducing NO.sub.x -free oxidizing gas such as compressor air into the second, fuel-lean zone and completing combustion with this source of oxidizing gas. Excess air fed to the fluidized bed reactor is also controlled to obtain desired stoichiometry in the first, fuel-rich zone of the topping combustor.

Mollot, Darren J. (Morgantown, WV); Bonk, Donald L. (Louisville, OH); Dowdy, Thomas E. (Orlando, FL)

1998-01-01T23:59:59.000Z

407

The Integrity of ACSR Full Tension Single-Stage Splice Connector at Higher Operation Temperature  

SciTech Connect

Due to increases in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than those used for the original design criteria. This has led to the accelerated aging and degradation of splice connectors. It is manifested by the formation of hot-spots that have been revealed by infrared imaging during inspection. The implications of connector aging is two-fold: (1) significant increases in resistivity of the splice connector (i.e., less efficient transmission of electricity) and (2) significant reductions in the connector clamping strength, which could ultimately result in separation of the power transmission line at the joint. Therefore, the splice connector appears to be the weakest link in electric power transmission lines. This report presents a protocol for integrating analytical and experimental approaches to evaluate the integrity of full tension single-stage splice connector assemblies and the associated effective lifetime at high operating temperature.

Wang, Jy-An John [ORNL; Lara-Curzio, Edgar [ORNL; King Jr, Thomas J [ORNL

2008-10-01T23:59:59.000Z

408

Solar thermal upper stage technology demonstrator liquid hydrogen storage and feed system test program  

Science Journals Connector (OSTI)

The Solar Thermal Upper Stage Technology Demonstrator (STUSTD) Liquid Hydrogen Storage and Feed System (LHSFS) Test Program is described. The test program consists of two principal phases. First an engineering characterization phase includes tests performed to demonstrate and understand the expected tank performance. This includes fill and drain; baseline heat leak; active Thermodynamic Vent System (TVS); and flow tests. After the LHSFS performance is understood and performance characteristics are determined a 30 day mission simulation test will be conducted. This test will simulate a 30 day transfer mission from low earth orbit (LEO) to geosynchronous equatorial orbit (GEO). Mission performance predictions based on the results of the engineering characterization tests will be used to correlate the results of the 30 day mission simulation.

E. C. Cady

1997-01-01T23:59:59.000Z

409

Policy Building Blocks: Helping Policymakers Determine Policy Staging for the Development of Distributed PV Markets: Preprint  

SciTech Connect

There is a growing body of qualitative and a limited body of quantitative literature supporting the common assertion that policy drives development of clean energy resources. Recent work in this area indicates that the impact of policy depends on policy type, length of time in place, and economic and social contexts of implementation. This work aims to inform policymakers about the impact of different policy types and to assist in the staging of those policies to maximize individual policy effectiveness and development of the market. To do so, this paper provides a framework for policy development to support the market for distributed photovoltaic systems. Next steps include mathematical validation of the framework and development of specific policy pathways given state economic and resource contexts.

Doris, E.

2012-04-01T23:59:59.000Z

410

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

DOE Patents (OSTI)

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

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

2014-05-13T23:59:59.000Z

411

Production smoothing and buffer stock reduction for two-stage production and inventory systems  

Science Journals Connector (OSTI)

This paper deals with the problem of developing an effective push-type ordering system which can decrease the variations of production ordering and inventory levels, while taking into account forecasted error, the difference between forecasted values and the backlog quantity, in which the shortage of safety stock of component parts causes a discrepancy between production ordering and actual production levels. The ordering system is developed on the basis of an idea which combines safety stock and the weight of the feedback quantity of actual and forecasted term-end inventory levels. Some results of numerical analysis show the effects of safety stock of the component parts and the feedback control parameter of each production stage, the autocorrelation coefficient of product demand upon the amplifications of production ordering and inventory levels.

Kazuyoshi Ishii; Shusaku Hiraki

2000-01-01T23:59:59.000Z

412

Early stages of spinodal decomposition for the Cahn-Hilliard-Cook model of phase separation  

Science Journals Connector (OSTI)

A computer simulation using discretized space and time is employed to examine the early stages of phase separation as described by the Cahn-Hilliard-Cook equation (CHCE). The relative simplicity of this simulation provides a direct test of various mathematical treatments of the nonlinear term in the CHCE. In particular, the numerical results are used to ascertain the validity of the approximations inherent in the perturbative expansions of Grant, San Miguel, Vinals, and Gunton, and of Langer, Bar-on, and Miller. The time of validity of all approximations is shown to be logarithmically related to the strength of the thermal fluctuations. In addition, the effect of the initial state on the dynamical evolution of the order parameter is examined.

K. R. Elder; T. M. Rogers; Rashmi C. Desai

1988-09-01T23:59:59.000Z

413

Reduced Treatment Intensity in Patients with Early-Stage Hodgkin's Lymphoma  

Science Journals Connector (OSTI)

...chemotherapy cycles and the radiation therapy dose. Comparison of Groups 1 and 4. As shown in Figure 2, no significant difference in the rate of freedom from treatment failure was seen between groups 1 and 4 according to the stratified log-rank test (P=0.79). The 5-year estimate for the group difference... Investigators examined whether the intensity of treatment can be reduced in patients with early-stage Hodgkin's lymphoma without compromising antitumor efficacy. In a comparison of two with four cycles of ABVD chemotherapy plus either 20 or 30 Gy of involved-field radiation therapy, no significant differences were noted in disease-free or overall survival between the most and the least intensive regimens.

Engert A.; Plütschow A.; Eich H.T.

2010-08-12T23:59:59.000Z

414

Two-stage coal liquefaction process performance with close-coupled reactors  

Science Journals Connector (OSTI)

Close-coupled operation reactors in integrated two-stage liquefaction is an important development in coal liquefaction technology. One such run was completed at the Wilsonville pilot plant using Illinois No. 6 coal. Product yield and product quality data are presented. Comparisons are made with previous data obtained without close-coupling of the reactors. Also, a broad comparison of the performance of a unimodal Shell 324 and a bimodal Amocat 1C catalyst is made. The effect of higher system space velocity on process performance and the impact of solids recycle are discussed. Finally, catalyst replacement rates for “all-distillate” product slate are projected as a function of hydrotreater temperature and system space rate.

Ramakrishna V. Nalitham; Jun M. Lee; Charles W. Lamb; Thomas W. Johnson

1987-01-01T23:59:59.000Z

415

Catalytic multi-stage liquefaction of coal. Ninth quarterly report, October 1, 1994--December 31, 1994  

SciTech Connect

This quarterly report covers the activities of Catalytic Multi-Stage Liquefaction of Coal during the Period October 1 - December 31, 1994, at Hydrocarbon Research, Inc. in Lawrenceville and Princeton, New Jersey. This DOE Contract Period was from December 8, 1992 to December 7, 1994 and has been extended to September 30, 1995. The overall objective of this program is to produce liquid fuels from coal by direct liquefaction at a cost that is competitive with conventional fuels. Specifically, this continuous bench-scale program contains provisions to examine new ideas in areas such as: low temperature pretreatments, more effective catalysts, on-line hydrotreating, new coal feedstocks, other hydrogen sources, more concentrated coal feeds and other highly responsive process improvements while assessing the design and economics of the bench-scale results. This quarterly report covers work on Laboratory Scale Studies, Continuous Bench-Scale Operations, Technical Assessment and Project Management.

Comolli, A.G.; Johnson, E.S.; Lee, L.K. [and others

1995-06-01T23:59:59.000Z

416

Effect of Radiotherapy Volume and Dose on Secondary Cancer Risk in Stage I Testicular Seminoma  

SciTech Connect

Purpose: To estimate and compare the secondary cancer risk (SCR) due to para-aortic (PA), dogleg field (DLF), or extensive field (EF) radiotherapy (RT) at different dose levels for Stage I testicular seminoma. Methods and Materials: The organ equivalent dose concept with a linear, plateau, and linear-exponential dose-response model was applied to the dose distributions to estimate the SCR. The dose distributions were calculated in a voxel-based anthropomorphic phantom. Three different three-dimensional plans were computed: PA, DLF, and EF. The plans were calculated with 6-MV photons and two opposed fields, using 20 Gy in 10 fractions. Results: The estimated cumulative SCR for a 75-year-old patient treated with PA-RT at age 35 was 23.3% (linear model), 20.9% (plateau model), and 20.8% (linear-exponential model) compared with 19.8% for the general population. Dependent on the model, PA-RT compared with DLF-RT reduced the SCR by 48-63% or 64-69% when normalized to EF-RT. For PA-RT, the linear dose-response model predicted a decrease of 45% in the SCR, using 20 Gy instead of 30 Gy; the linear-exponential dose-response model predicted no change in SCR. Conclusion: Our model suggested that the SCR after PA-RT for Stage I testicular seminoma is reduced by approximately one-half to two-thirds compared with DLF-RT, independent of the dose-response model. The SCR is expected to be equal or lower with 20 Gy than with 30 Gy. In the absence of mature patient data, the organ equivalent dose concept offers the best potential method of estimating the SCR when discussing treatment options with patients.

Zwahlen, Daniel R. [Department of Radiation Oncology, University Hospital Zurich, Zurich (Switzerland); William Buckland Radiotherapy Centre, Alfred Hospital, Melbourne, Victoria (Australia)], E-mail: daniel.zwahlen@gmx.ch; Martin, Jarad M. [Radiation Oncology Queensland, St. Andrews Hospital, Toowoomba, Queensland (Australia); Millar, Jeremy L. [William Buckland Radiotherapy Centre, Alfred Hospital, Melbourne, Victoria (Australia); Schneider, Uwe [Division of Medical Physics, Department of Radiation Oncology and Nuclear Medicine, Triemli Hospital Zurich, Zurich (Switzerland)

2008-03-01T23:59:59.000Z

417

Time-averaged heat transfer and pressure measurements and comparison with prediction for a two-stage turbine  

SciTech Connect

Time-averaged Stanton number and surface-pressure distributions are reported for the first-stage vane row and the first-stage blade row of the Rocketdyne Space Shuttle Main Engine two-stage fuel-side turbine. These measurements were made at 10, 50, and 90 percent span on both the pressure and suction surfaces of the component. Stanton-number distributions are also reported for the second-stage vane at 50 percent span. A shock tube is used as a short-duration source of heated and pressurized air to which the turbine is subjected. Platinum thin-film gages are used to obtain the heat-flux measurements and miniature silicone-diaphragm pressure transducers are used to obtain the surface pressure measurements. The first-stage vane Stanton number distributions are compared with predictions obtained using a quasi-three dimensional Navier-Stokes solution and a version of STAN5. This same N-S technique was also used to obtain predictions for the first blade and the second vane.

Dunn, M.G.; Kim, J. (Calspan-UB Research Center, Buffalo, NY (United States)); Boyle, R.J. (NASA Lewis Research Center, Cleveland, OH (United States)); Civinskas, K.C.

1994-01-01T23:59:59.000Z

418

On the interplay effects with proton scanning beams in stage III lung cancer  

SciTech Connect

Purpose: To assess the dosimetric impact of interplay between spot-scanning proton beam and respiratory motion in intensity-modulated proton therapy (IMPT) for stage III lung cancer. Methods: Eleven patients were sampled from 112 patients with stage III nonsmall cell lung cancer to well represent the distribution of 112 patients in terms of target size and motion. Clinical target volumes (CTVs) and planning target volumes (PTVs) were defined according to the authors' clinical protocol. Uniform and realistic breathing patterns were considered along with regular- and hypofractionation scenarios. The dose contributed by a spot was fully calculated on the computed tomography (CT) images corresponding to the respiratory phase that the spot is delivered, and then accumulated to the reference phase of the 4DCT to generate the dynamic dose that provides an estimation of what might be delivered under the influence of interplay effect. The dynamic dose distributions at different numbers of fractions were compared with the corresponding 4D composite dose which is the equally weighted average of the doses, respectively, computed on respiratory phases of a 4DCT image set. Results: Under regular fractionation, the average and maximum differences in CTV coverage between the 4D composite and dynamic doses after delivery of all 35 fractions were no more than 0.2% and 0.9%, respectively. The maximum differences between the two dose distributions for the maximum dose to the spinal cord, heart V40, esophagus V55, and lung V20 were 1.2 Gy, 0.1%, 0.8%, and 0.4%, respectively. Although relatively large differences in single fraction, correlated with small CTVs relative to motions, were observed, the authors' biological response calculations suggested that this interfractional dose variation may have limited biological impact. Assuming a hypofractionation scenario, the differences between the 4D composite and dynamic doses were well confined even for single fraction. Conclusions: Despite the presence of interplay effect, the delivered dose may be reliably estimated using the 4D composite dose. In general the interplay effect may not be a primary concern with IMPT for lung cancers for the authors' institution. The described interplay analysis tool may be used to provide additional confidence in treatment delivery.

Li, Yupeng [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and Applied Research, Varian Medical Systems, Palo Alto, California 94304 (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and Applied Research, Varian Medical Systems, Palo Alto, California 94304 (United States); Kardar, Laleh; Liao, Li; Lim, Gino [Department of Industrial Engineering, The University of Houston, Houston, Texas 77204 (United States)] [Department of Industrial Engineering, The University of Houston, Houston, Texas 77204 (United States); Li, Xiaoqiang; Li, Heng; Zhu, Ronald X.; Sahoo, Narayan; Gillin, Michael; Zhang, Xiaodong, E-mail: xizhang@mdanderson.org [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Cao, Wenhua [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and Department of Industrial Engineering, The University of Houston, Houston, Texas 77204 (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and Department of Industrial Engineering, The University of Houston, Houston, Texas 77204 (United States); Chang, Joe Y.; Liao, Zhongxing; Komaki, Ritsuko; Cox, James D. [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)

2014-02-15T23:59:59.000Z

419

Individual-based modeling of environmental quality effects on early life stages of fish: A case study using striped bass  

SciTech Connect

We demonstrate an individual-based approach to population modeling to evaluate environmental quality effects on early life stages of fishes. We believe that, regardless of the modeling approach, environmental quality effects ultimately must be evaluated at the population level. Determining population-level consequences of changes in environmental quality is critical because the population is the relevant endpoint of interest with respect to success of the species and its availability for harvest. It offers a common metric upon which to compare among different environmental factors, effects, and life stages.

Rose, K.A. (Oak Ridge National Lab., TN (United States)); Cowan, J.H. Jr. (University of South Alabama, Mobile, AL (United States). Dept. of Marine Sciences); Houde, E.D. (Maryland Univ., Solomons, MD (United States). Chesapeake Biological Lab.); Coutant, C.C. (Oak Ridge National Lab., TN (United States))

1992-01-01T23:59:59.000Z

420

Individual-based modeling of environmental quality effects on early life stages of fish: A case study using striped bass  

SciTech Connect

We demonstrate an individual-based approach to population modeling to evaluate environmental quality effects on early life stages of fishes. We believe that, regardless of the modeling approach, environmental quality effects ultimately must be evaluated at the population level. Determining population-level consequences of changes in environmental quality is critical because the population is the relevant endpoint of interest with respect to success of the species and its availability for harvest. It offers a common metric upon which to compare among different environmental factors, effects, and life stages.

Rose, K.A. [Oak Ridge National Lab., TN (United States); Cowan, J.H. Jr. [University of South Alabama, Mobile, AL (United States). Dept. of Marine Sciences; Houde, E.D. [Maryland Univ., Solomons, MD (United States). Chesapeake Biological Lab.; Coutant, C.C. [Oak Ridge National Lab., TN (United States)

1992-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" 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

Two-stage sintering inhibits abnormal grain growth during beta to alpha transformation in SiC  

SciTech Connect

Free sintering of SiC with Al, B, and C additions in two successive stages, first under nitrogen and then under argon, produced a near full-density ceramic with equiaxed grain structure. The beta to alpha transformation proceeded to completion; however, the grain shape remained equiaxed due to the action of nitrogen present during the first stage of sintering. It is found that the beta to alpha transformation is necessary but not sufficient for producing the microstructure of interlocking plates found in high-toughness SiC.

Kueck, Aaron M.; De Jonghe, Lutgard C.

2007-09-17T23:59:59.000Z

422

Heavy quark diffusion in pre-equilibrium stage of heavy ion collisions  

E-Print Network (OSTI)

The drag and diffusion coefficients of the heavy quarks have been evaluated in the pre-equilibrium phase which is expected to be formed in the early stages of the evolving fire ball produced in heavy ion collisions at RHIC and LHC energies. The interaction of the probe with the gluon in the pre-equilibrium phase has been treated within the framework of perturbative QCD. For the pre-equilibrium gluon distribution function we have used the KLN and Classical Yang Mills(CYM) models. It is observed that the magnitude of both the transport coefficients have significant values in the pre-equilibrium phase and comparable to the magnitudes obtained for kinetically equilibrated gluonic system. However, these values are larger than the value estimated for a chemically equilibrated quark gluon plasma. The results may have significant impact on the experimental observable like the suppression and elliptic flow of single electron spectra originating from the decays of heavy mesons produced in heavy ion collisions at RHIC a...

Das, Santosh K; Mazumder, Surasree; Greco, Vincenzo; Alam, Jan-e

2015-01-01T23:59:59.000Z

423

BigBOSS: The Ground-Based Stage IV Dark Energy Experiment  

E-Print Network (OSTI)

The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift survey. The project is designed to unlock the mystery of dark energy using existing ground-based facilities operated by NOAO. A new 4000-fiber R=5000 spectrograph covering a 3-degree diameter field will measure BAO and redshift space distortions in the distribution of galaxies and hydrogen gas spanning redshifts from 0.2merit (DETF FoM) for this experiment is expected to be equal to that of a JDEM mission for BAO with the lower risk and cost typical of a ground-based experiment. This project will enable an unprecedented multi-object spectroscopic capability for the U.S. community through an existing NOAO facility. The U.S. community would have access directly to this instrument/telescope combination, as well as access to the legacy archives that will be created by the ...

Schlegel, David J; Heetderks, Henry; Ho, Shirley; Lampton, Michael; Levi, Michael; Mostek, Nick; Padmanabhan, Nikhil; Perlmutter, Saul; Roe, Natalie; Sholl, Michael; Smoot, George; White, Martin; Dey, Arjun; Abraham, Tony; Jannuzi, Buell; Joyce, Dick; Liang, Ming; Merrill, Mike; Olsen, Knut; Salim, Samir

2009-01-01T23:59:59.000Z

424

Two-stage Framework for a Topology-Based Projection and Visualization of Classified Document Collections  

SciTech Connect

During the last decades, electronic textual information has become the world's largest and most important information source available. People have added a variety of daily newspapers, books, scientific and governmental publications, blogs and private messages to this wellspring of endless information and knowledge. Since neither the existing nor the new information can be read in its entirety, computers are used to extract and visualize meaningful or interesting topics and documents from this huge information clutter. In this paper, we extend, improve and combine existing individual approaches into an overall framework that supports topological analysis of high dimensional document point clouds given by the well-known tf-idf document-term weighting method. We show that traditional distance-based approaches fail in very high dimensional spaces, and we describe an improved two-stage method for topology-based projections from the original high dimensional information space to both two dimensional (2-D) and three dimensional (3-D) visualizations. To show the accuracy and usability of this framework, we compare it to methods introduced recently and apply it to complex document and patent collections.

Oesterling, Patrick; Scheuermann, Gerik; Teresniak, Sven; Heyer, Gerhard; Koch, Steffen; Ertl, Thomas; Weber, Gunther H.

2010-07-19T23:59:59.000Z

425

MHD versus kinetic effects in the solar coronal heating: a two stage mechanism  

E-Print Network (OSTI)

Using Particle-In-Cell simulations i.e. in the kinetic plasma description the discovery of a new mechanism of parallel electric field generation was recently reported. Here we show that the electric field generation parallel to the uniform unperturbed magnetic field can be obtained in a much simpler framework using the ideal magnetohydrodynamics (MHD) description. In ideal MHD the electric field parallel to the uniform unperturbed magnetic field appears due to fast magnetosonic waves which are generated by the interaction of weakly non-linear Alfv\\'en waves with the transverse density inhomogeneity. In the context of the coronal heating problem a new {\\it two stage mechanism} of plasma heating is presented by putting emphasis, first, on the generation of parallel electric fields within an {\\it ideal MHD} description directly, rather than focusing on the enhanced dissipation mechanisms of the Alfv\\'en waves and, second, dissipation of these parallel electric fields via {\\it kinetic} effects. It is shown that for a single Alfv\\'en wave harmonic with frequency $\

David Tsiklauri

2006-06-27T23:59:59.000Z

426

Manufacture of gradient micro-structures of magnesium alloys using two stage extrusion dies  

SciTech Connect

This paper aims to manufacture magnesium alloy metals with gradient micro-structures using hot extrusion process. The extrusion die was designed to have a straight channel part combined with a conical part. Materials pushed through this specially-designed die generate a non-uniform velocity distribution at cross sections inside the die and result in different strain and strain rate distributions. Accordingly, a gradient microstructure product can be obtained. Using the finite element analysis, the forming temperature, effective strain, and effective strain rate distributions at the die exit were firstly discussed for various inclination angles in the conical die. Then, hot extrusion experiments with a two stage die were conducted to obtain magnesium alloy products with gradient micro-structures. The effects of the inclination angle on the grain size distribution at cross sections of the products were also discussed. Using a die of an inclination angle of 15°, gradient micro-structures of the grain size decreasing gradually from 17 ?m at the center to 4 ?m at the edge of product were achieved.

Hwang, Yeong-Maw; Huang, Tze-Hui [Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, No. 70, Lien-Hai Rd., Kaohsiung, 804, Taiwan (China); Alexandrov, Sergei [Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow (Russian Federation); Naimark, Oleg Borisovich [Institute of Continuous Media Mechanics, Russian Academy of Sciences, Perm (Russian Federation); Jeng, Yeau-Ren [Department of Mechanical Engineering and Advanced Institute of Manufacturing with High-tech Innovations, National Chung Cheng University, Ming-Hsiung, Chia-Yi 621, Taiwan (China)

2013-12-16T23:59:59.000Z

427

Conditions for economical benefits of the use of solar energy in multi-stage flash distillation  

Science Journals Connector (OSTI)

A solar assisted multi-stage flash (MSF) distillation system is economically compared with a conventional energy MSF plant. Moreover, the economical and climatic conditions that make competitive the use of solar energy in MSF plants vs. conventional energy are analyzed. The design arrangement of the solar distillation system considered consists of a solar parabolic trough collector field coupled to a conventional MSF plant. The solar field directly heats the brine until its top temperature. Therefore, the solar field acts as brine heater when solar energy is available. Nevertheless, the plant consumes conventional energy at nighttime. The parameters analyzed are the climatic conditions, which define the energy production and the average daily operation time of the solar field; the capacity and the performance ratio of the desalination plant; the cost of the solar collector, and the cost of conventional energy. It was concluded that the solarassisted distillation system described above could make possible the competitiveness of the use of solar energy in MSF distillation plants.

Lourdes García-Rodríguez; Carlos Gómez-Camacho

1999-01-01T23:59:59.000Z

428

Integrated two stage coking and steam cracking process and apparatus therefor  

SciTech Connect

The invention relates to an improvement in an integrated, two stage coking and steam cracking process for the production of unsaturated light hydrocarbons. A heavy hydrocarbonaceous oil is first coked in a fluidized bed coking zone. The vaporous conversion product is passed to a dilute phase. High temperature cracking in the presence of steam is carried out on the vaporous coker conversion product by injecting into the vapors a stream of hot coke particles at a sufficient temperature and in sufficient amount to raise the coker vapors to steam cracking temperature and supply the endothermic heat of reaction. Solids are separated from product gas in a gas-solids separation zone such as one or more cyclones and sent to the fluid coking zone and the gas is quenched to stop olefin degradation reactions. According to the improvement, relatively low temperature steam is introduced into contact with the separated solids to superheat the steam and cool the solids. Suitably this is effected in a riser on the cyclone dipleg. The solids, after having given up heat to the steam, pass into the coking zone and the superheated steam passes into the dilute phase and serves as part of the dilution steam therefor. Conservation of fuel and mitigation of coke on reactor walls and equipment are advantages of the process.

Oldweiler, M.E.

1983-10-25T23:59:59.000Z

429

Assessment of a multi-stage underwater vehicle concept using a fossil-fuel Stirling engine  

SciTech Connect

The Stirling Engine because of its inherent closed-cycle operation can be readily modified to work in an airless environment even if the primary source of energy is a fossil fuel. Thus, Stirling engines are well suited for use in the underwater environment and have been operated successfully in manned military submarines since the early 1980s. In recent years fossil fueled Stirling systems have been also proposed for use in small unmanned underwater vehicles (UUVs). However, in this case the need to carry an onboard oxygen supply in a very confined space has presented a number of design difficulties. These are identified in the paper. However, if the oxidant supply to the engine is provided by the membrane extraction of dissolved oxygen from seawater and/or disposable fuel/oxidant pods are used then the UUV Stirling system becomes more attractive. If this latter concept is extended to include multi-stage vehicles then it can be shown that fossil fueled Stirlings could also be put to effective use in long range-long endurance underwater vehicular operations.

Reader, G.T.; Potter, I.J. [Univ. of Calgary, Alberta (Canada). Dept. of Mechanical Engineering

1995-12-31T23:59:59.000Z

430

Enhanced Hydrogen Production Integrated with CO2 Separation in a Single-Stage Reactor  

SciTech Connect

Hydrogen production from coal gasification can be enhanced by driving the equilibrium limited Water Gas Shift reaction forward by incessantly removing the CO{sub 2} by-product via the carbonation of calcium oxide. This project aims at using the OSU patented high-reactivity mesoporous precipitated calcium carbonate sorbent for removing the CO{sub 2} product. Preliminary experiments demonstrate the show the superior performance of the PCC sorbent over other naturally occurring calcium sorbents. Gas composition analyses show the formation of 100% pure hydrogen. Novel calcination techniques could lead to smaller reactor footprint and single-stage reactors that can achieve maximum theoretical H{sub 2} production for multicyclic applications. Sub-atmospheric calcination studies reveal the effect of vacuum level, diluent gas flow rate, thermal properties of the diluent gas and the sorbent loading on the calcination kinetics which play an important role on the sorbent morphology. Steam, which can be easily separated from CO{sub 2}, is envisioned to be a potential diluent gas due to its enhanced thermal properties. Steam calcination studies at 700-850 C reveal improved sorbent morphology over regular nitrogen calcination. A mixture of 80% steam and 20% CO{sub 2} at ambient pressure was used to calcine the spent sorbent at 820 C thus lowering the calcination temperature. Regeneration of calcium sulfide to calcium carbonate was achieved by carbonating the calcium sulfide slurry by bubbling CO{sub 2} gas at room temperature.

Mahesh Iyer; Himanshu Gupta; Danny Wong; Liang-Shih Fan

2005-09-30T23:59:59.000Z

431

Advanced furnace air staging and burner modifications for ultra-low NOx firing systems  

SciTech Connect

Overfire air is an effective means to reduce NOx emissions from coal fired furnaces. The current range of overfire air usage on wall-fired boilers in the US is in the range of 10 to 20%. In most cases this is enough to achieve current Title IV NOx reduction requirements. Future applications are likely to go beyond 20% Overfire Air to reduce NOx further for lower investment and operating costs of SCR retrofits. Summer ozone reduction requires NOx emissions of 0.15 lb/MBtu. Currently, industry is exploring the conditions under which this goal is attainable. The paper discussed the approach to achieve ultra-low NOx emissions by using advanced furnace air staging. It describes the unique approach of redesigning the burner to maintain low NOx burner performance when the overfire air system is added or increased in capacity. The impact on furnace corrosion and unburned carbon losses are presented. A case study is used to show the effects of overfire air both on emissions and unburned carbon.

McCarthy, K.; Laux, S.; Grusha, J.

1999-07-01T23:59:59.000Z

432

Control of xenon oscillations in Advanced Heavy Water Reactor via two-stage decomposition  

Science Journals Connector (OSTI)

Abstract Xenon induced spatial oscillations developed in large nuclear reactors, like Advanced Heavy Water Reactor (AHWR) need to be controlled for safe operation. Otherwise, a serious situation may arise in which different regions of the core may undergo variations in neutron flux in opposite phase. If these oscillations are left uncontrolled, the power density and rate of change of power at some locations in the reactor core may exceed their respective thermal limits, resulting in fuel failure. In this paper, a state feedback based control strategy is investigated for spatial control of AHWR. The nonlinear model of AHWR including xenon and iodine dynamics is characterized by 90 states, 5 inputs and 18 outputs. The linear model of AHWR, obtained by linearizing the nonlinear equations is found to be highly ill-conditioned. This higher order model of AHWR is first decomposed into two comparatively lower order subsystems, namely, 73rd order ‘slow’ subsystem and 17th order ‘fast’ subsystem using two-stage decomposition. Composite control law is then derived from individual subsystem feedback controls and applied to the vectorized nonlinear model of AHWR. Through the dynamic simulations it is observed that the controller is able to suppress xenon induced spatial oscillations developed in AHWR and the overall performance is found to be satisfactory.

R.K. Munje; J.G. Parkhe; B.M. Patre

2015-01-01T23:59:59.000Z

433

High temperature energy conversion for the Integrated Solar Upper Stage (ISUS)  

SciTech Connect

Preliminary studies were conducted to assess the benefits of the Integrated Solar Upper Stage (ISUS) concept and key components including high temperature thermionic converters, have been tested and evaluated. Advanced radiatively coupled heat pipe cooled thermionic converters with rhenium and tungsten emitters were characterized individually for integration in a modular power unit. The converter with the tungsten emitter was performance mapped in the temperature range of 1,750 K to 2,400 K in order to conform to the ISUS requirements. Higher off-design temperatures yielded power densities as high as 12 watts/sq. cm. in the cesium pressure range of 4 to 9 torr. The converter with the rhenium emitter was tested in the temperature range of 1,575 K to 1,950 K and produced 10.5 watts/sq. cm. at the highest temperature. Dynamic switching characteristics were also measured to evaluate the possibility of interfacing a pulse width modulated (PWM) power regulator directly to a thermionic source.

Ramalingam, M.L. [UES, Inc., Dayton, OH (United States); Lamp, T.R. [Wright Lab., Wright Patterson AFB, OH (United States); Jacox, M.; Kennedy, F. [Phillips Lab., Kirtland AFB, NM (United States)

1996-12-31T23:59:59.000Z

434

Effect of fuel injection velocity on MILD combustion of syngas in axially-staged combustor  

Science Journals Connector (OSTI)

Abstract The role of fuel injection velocity on MILD (Moderate or Intense Low-oxygen Dilution) combustion of coal-derived syngas was examined in an axially staged combustor, where the secondary air was mixed with the flue gases from the gas generation zone to produce hot and diluted oxidant prior to its mixing with the secondary fuel. The global flame signatures, OH? radicals distribution, and exhaust emissions were obtained through experimental measurements, while the mixing behavior between the secondary fuel and oxidant was numerically studied. Higher secondary fuel injection velocity within 199–299 m/s facilitated the earlier entrainment of oxidizer into the secondary fuel and increased the flame lift-off height, resulting in a lower flame temperature, a more distributed reaction zone and reduced \\{NOx\\} emissions, but higher pressure loss and CO formation. The MILD regime yields lower \\{NOx\\} emissions compared to the traditional diffusion combustion mode, and the N2O-intermediate mechanism dominates the NO production in the syngas MILD flame with adiabatic flame temperature lower than 1565 K according to the prediction of the chemical reactor network model.

Ming-ming Huang; Wei-wei Shao; Yan Xiong; Yan Liu; Zhe-dian Zhang; Fu-lin Lei; Yun-han Xiao

2014-01-01T23:59:59.000Z

435

Effects of recycle ratios on process dynamics and operability of a whey ultrafiltration stage  

Science Journals Connector (OSTI)

There is limited information available to describe how the recycle ratios of the retentate and permeate streams can be used to counteract the effects of fluctuations in feed flowrate and composition on the flowrate and composition of the retentate stream from a whey ultrafiltration (UF) process. Based on dynamic modelling of a single membrane channel and a single-stage membrane module, it was found that the high retentate recycle ratio typically used in industrial UF of whey imposes slow dynamic responses and extensive oscillations on the flowrate and concentration of the retentate after a feedback controller is implemented. Even though the permeate recycle ratio can be used to control the specifications of the retentate, the high retentate recycle ratio used in typical whey UF processing places a limit on how fast the effects of fluctuations in feed flowrate and composition can be mitigated. Since a high retentate recycle ratio is required to improve the productivity of the whey UF process, a tradeoff must be obtained between the productivity and the time required to mitigate the effects of fluctuations in feed flowrate and composition.

Kevin W.K. Yee; Alessio Alexiadis; Jie Bao; Dianne E. Wiley

2009-01-01T23:59:59.000Z

436

EARLY-STAGE MASSIVE STAR FORMATION NEAR THE GALACTIC CENTER: Sgr C  

SciTech Connect

We present near-infrared spectroscopy and 1 mm line and continuum observations of a recently identified site of high mass star formation likely to be located in the Central Molecular Zone (CMZ) near Sgr C. Located on the outskirts of the massive evolved H II region associated with Sgr C, the area is characterized by an Extended Green Object (EGO) measuring ?10'' in size (0.4 pc), whose observational characteristics suggest the presence of an embedded massive protostar driving an outflow. Our data confirm that early-stage star formation is taking place on the periphery of the Sgr C H II region, with detections of two protostellar cores and several knots of H{sub 2} and Brackett ? emission alongside a previously detected compact radio source. We calculate the cores' joint mass to be ?10{sup 3} M {sub ?}, with column densities of 1-2 × 10{sup 24} cm{sup –2}. We show the host molecular cloud to hold ?10{sup 5} M {sub ?} of gas and dust with temperatures and column densities favorable for massive star formation to occur, however, there is no evidence of star formation outside of the EGO, indicating that the cloud is predominantly quiescent. Given its mass, density, and temperature, the cloud is comparable to other remarkable non-star-forming clouds such as G0.253 in the eastern CMZ.

Kendrew, S.; Johnston, K.; Beuther, H. [Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg (Germany)] [Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg (Germany); Ginsburg, A.; Bally, J.; Battersby, C. [CASA, University of Colorado at Boulder, UCB 389, Boulder, CO 80309 (United States)] [CASA, University of Colorado at Boulder, UCB 389, Boulder, CO 80309 (United States); Cyganowski, C. J., E-mail: kendrew@mpia.de [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)

2013-10-01T23:59:59.000Z

437

Ethanol and Methane Production from Oil Palm Frond by Two Stage SSF  

Science Journals Connector (OSTI)

Abstract A two step, included process producing ethanol from oil palm fronts (OPF) by two-stage simultaneous saccharification and Saccharomyces cerevisiae fermentation followed by anaerobic digestion of its effluent to produce methane was investigated. OPF was soaked in dilute sulfuric acid, hydrogen peroxide and water consequently pretreated by microwave for preparing of cellulose and followed by simultaneous saccharification and fermentation. The result indicated OPF soaking in water gave a maximal ethanol yield was 0.32 g-ethanol/g-glucose which was 62.75% of the ethanol theoretical yield (0.51g-ethanol/g-glucose). The effluent from the ethanol production process was used to produce methane with the yield of 514 ml CH4/g VS added. Therefore, soaking in water and microwave co-pretreatment could helpful due to its low toxicity and low corrosion compare to sulfuric acid and hydrogen peroxide which improves the efficiency of enzymatic hydrolysis. The maximum energy output of the process (745 kWh/ ton of OPF) was about 72% of the energy contributed by cellulose fraction, contained in the oil palm frond.

Tussanee Srimachai; Veerasak Thonglimp; Sompong O-Thong

2014-01-01T23:59:59.000Z

438

Cotton Response to 1-Methylcyclopropene Under Different Light Regimes and Growth Stages: Lint Yield and Yield Components  

E-Print Network (OSTI)

be significantly reduced in the latter stages of growth. This two-year field study was conducted at the Texas A&M AgriLife Research Farm in Burleson County, Texas, in 2008 and 2009. The study evaluated the impact of an 8-day period of shade (63 percent reduction...

Carden, Charles Warren

2010-10-12T23:59:59.000Z

439

A fuzzy multi-objective two-stage DEA model for evaluating the performance of US bank holding companies  

Science Journals Connector (OSTI)

This paper investigates the association between the performance of bank holding companies (BHCs) and their intellectual capital (IC). We start from constructing an innovation ratio two-stage DEA model and then applies fuzzy multiple objective programming ... Keywords: Data envelopment analysis, Fuzzy multiple objective, Intellectual capital, Truncated-regression

Wei-Kang Wang, Wen-Min Lu, Pei-Yi Liu

2014-07-01T23:59:59.000Z

440

Safety, Pharmacokinetic, and Efficacy Studies of Oral DB868 in a First Stage Vervet Monkey Model of Human African Trypanosomiasis  

E-Print Network (OSTI)

-pyridyl]furan (DB868; CPD-007-10), in the vervet monkey model of first stage HAT. DB868 was well tolerated at a dose up to 30 mg/kg/day for 10 days, a cumulative dose of 300 mg/kg. Mean plasma levels of biomarkers indicative of liver injury (alanine...

Thutia, John K.; Wolf, Kristina K.; Murilla, Grace A.; Liu, Qiang; Mutuku, James N.; Chen, Yao; Bridges, Arlene S.; Mdachi, Raymond E.; Ismail, Mohamed A.; Ching, Shelley; Boykin, David W.; Hall, James E.; Tidwell, Richard R.; Paine, Mary F.; Burn, Reto; Wang, Michael Z.

2013-06-06T23:59:59.000Z

Note: This page contains sample records for the topic "230-kilovolt switchyards stage" from the National Library of EnergyBeta (NLEBeta).
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441

Develop apparatus and process for second-stage drying. Quarterly progress report, September 26--December 26, 1994  

SciTech Connect

Progress is reported on Task 1, Computer simulation refinement and extension, and its two subtasks: Verification of computer model simulation of the drying process for lumber in a superheated kiln and Establishment of energy loss predictions for specific kiln designs for the first stage kiln. A report of a trip to the Irvington Moore Corporation facility and plans for next quarter are described.

Taylor, F.

1995-01-05T23:59:59.000Z

442

Numerical simulations for the coal/oxidant distribution effects between two-stages for multi opposite burners (MOB) gasifier  

Science Journals Connector (OSTI)

Abstract A 3D CFD model for two-stage entrained flow dry feed coal gasifier with multi opposite burners (MOB) has been developed in this paper. At each stage two opposite nozzles are impinging whereas the two other opposite nozzles are slightly tangential. Various numerical simulations were carried out in standard CFD software to investigate the impacts of coal and oxidant distributions between the two stages of the gasifier. Chemical process was described by Finite Rate/Eddy Dissipation model. Heterogeneous and homogeneous reactions were defined using the published kinetic data and realizable k–? turbulent model was used to solve the turbulence equations. Gas–solid interaction was defined by Euler–Lagrangian frame work. Different reaction mechanism were investigated first for the validation of the model from published experimental results. Then further investigations were made through the validated model for important parameters like species concentrations in syngas, char conversion, maximum inside temperature and syngas exit temperature. The analysis of the results from various simulated cases shows that coal/oxidant distribution between the stages has great influence on the overall performance of gasifier. The maximum char conversion was found 99.79% with coal 60% and oxygen 50% of upper level of injection. The minimum char conversion was observed 95.45% at 30% coal with 40% oxygen at same level. In general with oxygen and coal above or equal to 50% of total at upper injection level has shown an optimized performance.

Imran Nazir Unar; Lijun Wang; Abdul Ghani Pathan; Rasool Bux Mahar; Rundong Li; M. Aslam Uqaili

2014-01-01T23:59:59.000Z

443

Stereotactic Body Radiotherapy (SBRT) for Operable Stage I Non-Small-Cell Lung Cancer: Can SBRT Be Comparable to Surgery?  

SciTech Connect

Purpose: To review treatment outcomes for stereotactic body radiotherapy (SBRT) in medically operable patients with Stage I non-small-cell lung cancer (NSCLC), using a Japanese multi-institutional database. Patients and Methods: Between 1995 and 2004, a total of 87 patients with Stage I NSCLC (median age, 74 years; T1N0M0, n = 65; T2N0M0, n = 22) who were medically operable but refused surgery were treated using SBRT alone in 14 institutions. Stereotactic three-dimensional treatment was performed using noncoplanar dynamic arcs or multiple static ports. Total dose was 45-72.5 Gy at the isocenter, administered in 3-10 fractions. Median calculated biological effective dose was 116 Gy (range, 100-141 Gy). Data were collected and analyzed retrospectively. Results: During follow-up (median, 55 months), cumulative local control rates for T1 and T2 tumors at 5 years after SBRT were 92% and 73%, respectively. Pulmonary complications above Grade 2 arose in 1 patient (1.1%). Five-year overall survival rates for Stage IA and IB subgroups were 72% and 62%, respectively. One patient who developed local recurrences safely underwent salvage surgery. Conclusion: Stereotactic body radiotherapy is safe and promising as a radical treatment for operable Stage I NSCLC. The survival rate for SBRT is potentially comparable to that for surgery.

Onishi, Hiroshi, E-mail: honishi@yamanashi.ac.jp [School of Medicine, Yamanashi University, Yamanashi (Japan); Shirato, Hiroki [School of Medicine, Hokkaido University, Sapporo (Japan); Nagata, Yasushi [School of Medicine, Hiroshima University, Hiroshima (Japan); Hiraoka, Masahiro [School of Medicine, Kyoto University, Kyoto (Japan); Fujino, Masaharu [School of Medicine, Hokkaido University, Sapporo (Japan); School of Medicine, Yamanashi University, Yamanashi (Japan); Gomi, Kotaro [Cancer Institute Suwa Red-Cross Hospital, Suwa (Japan); Karasawa, Katsuyuki [Tokyo Metropolitan Komagome Hospital, Tokyo (Japan); Hayakawa, Kazushige; Niibe, Yuzuru [Kitasato University, Kanagawa (Japan); Takai, Yoshihiro [School of Medicine, Hirosaki University, Hirosaki (Japan); Kimura, Tomoki [School of Medicine, Kagawa University, Hiroshima (Japan); Takeda, Atsuya [Ofuna Chuo Hospital, Kanagawa (Japan); Ouchi, Atsushi [Keijinkai Hospital, Sapporo (Japan); Hareyama, Masato [Sapporo Medical University, Sapporo (Japan); Kokubo, Masaki [Institute of Biomedical Research and Innovation, Kobe (Japan); Kozuka, Takuyo [School of Cancer Institute Ariake Hospital, Tokyo (Japan); Arimoto, Takuro [Kitami Red Cross Hospital, Kitami (Japan); Hara, Ryusuke [National Institute of Radiological Science, Chiba (Japan); Itami, Jun [National Cancer Center, Tokyo (Japan); Araki, Tsutomu [School of Medicine, Yamanashi University, Yamanashi (Japan)

2011-12-01T23:59:59.000Z

444

Presence of Hypoderma lineatum stage I larvae in the esophagus of cattle slaughtered in Chihuahua, Chih., Mexico  

Science Journals Connector (OSTI)

In order to detect the presence of Hypoderma lineatum stage I larvae within the esophagus of cattle slaughtered in Chihuahua, Chihuahua, Mexico, a total of five samplings were carried out between July and November 2000. In each instance, a random sample was taken from 10% of the animals slaughtered in a single work shift in each of the two slaughterhouses included in this study. The esophagus were cut longitudinally in order to carry out visual inspection and detect the presence of H. lineatum stage I larvae in the submucosa. The larvae were separated and counted. We identified the presence of H. lineatum stage I larvae in the esophagus for all sampling dates, nevertheless, within the last sampling only one esophagus had them. For all sampling dates the prevalence ranged between 11 and 33%; the latter corresponded to the sampling in October. A total of 287 esophagus was inspected of which 54 were positive with one or more larvae (19%); 233 larvae were obtained from these cases. The number of larvae recovered per sampling ranged from 46 to 74 between July and October, the highest number was found in September's sampling. The largest amount of stage I larvae per esophagus was 22 in the months of July and August. Larvae were always located in the submucosa of the esophagus and all were oriented longitudinally.

M.T. Quintero-Martínez; J. Otero Negrete; R. Benítez; M.A. Méndez; G. Juárez Vega; C. Cruz-Vázquez

2007-01-01T23:59:59.000Z

445

Real Power and Reactive Power Control of a Three-Phase Single-Stage-PV System and PV voltage Stability  

SciTech Connect

Grid-connected photovoltaic (PV) systems with power electronic interfaces can provide both real and reactive power to meet power system needs with appropriate control algorithms. This paper presents the control algorithm design for a three-phase single-stage grid-connected PV inverter to achieve either maximum power point tracking (MPPT) or a certain amount of real power injection, as well as the voltage/var control. The switching between MPPT control mode and a certain amount of real power control mode is automatic and seamless. Without the DC-to-DC booster stage, PV DC voltage stability is an important issue in the control design especially when the PV inverter is operating at maximum power point (MPP) with voltage/var control. The PV DC voltage collapse phenomenon and its reason are discussed. The method based on dynamic correction of the PV inverter output is proposed to ensure PV DC voltage stability. Simulation results of the single-stage PV system during system disturbances and fast solar irradiation changes confirm that the proposed control algorithm for single-stage PV inverters can provide appropriate real and reactive power services and ensure PV DC voltage stability during dynamic system operation and atmospheric conditions.

Li, Huijuan [ORNL] [ORNL; Xu, Yan [ORNL] [ORNL; Adhikari, Sarina [ORNL] [ORNL; Rizy, D Tom [ORNL] [ORNL; Li, Fangxing [ORNL] [ORNL; Irminger, Philip [ORNL] [ORNL

2012-01-01T23:59:59.000Z

446

A Novel High-Power-Factor LED-Lamp Driver Based on a Single-Stage Power Conversion  

Science Journals Connector (OSTI)

This paper proposes a novel single-stage driver for supplying a T8-type light-emitting diode (LED) lamp with high power factor. The presented driver integrates a dual buck-boost converter with coupled inductors and a half-bridge series-resonant converter ... Keywords: converter, driver, light-emitting diode (LED)

Chun An Cheng, En Chih Chang, Ching Shien Tseng, Tsung Yuan Chung

2014-06-01T23:59:59.000Z

447

A Multi-Stage Very Large-Scale Neighborhood Search for the Vehicle Routing Problem with Soft Time-Windows  

E-Print Network (OSTI)

problem, where customer's time windows may be violated at a certain cost. The Vehicle Routing ProblemA Multi-Stage Very Large-Scale Neighborhood Search for the Vehicle Routing Problem with Soft Time of Computing Science and Engineering Place Sainte-Barbe 2, 1348 Louvain-la-Neuve, Belgium {Sebastien

Deville, Yves

448

A toolbox for managing organisational issues in the early stage of the development of a ubiquitous computing application  

Science Journals Connector (OSTI)

In this paper, we present a toolbox for the prospective management of organisational issues in ubiquitous computing. Ubiquitous computing applications are developed to enable new services and new ways of working, to increase management control and to ... Keywords: Benefits and risks, Early stage, Organisational issues, Socio-technical design, Ubiquitous computing

Daniel Boos; Gudela Grote; Hannes Guenter

2013-08-01T23:59:59.000Z

449

The Subcellular Location of Ovalbumin in Plasmodium berghei Blood Stages Influences the Magnitude of T-Cell Responses  

Science Journals Connector (OSTI)

...70-mum cell sieve (BD Biosciences). Brains were chopped into small pieces, aspirated...pellet collected. For both the spleen and brain preparations, RBCs were lysed using RBC...OVA-specific T-cell responses in the brain during blood-stage infections with different...

Jing-Wen Lin; Tovah N. Shaw; Takeshi Annoura; Aurélie Fougère; Pascale Bouchier; Séverine Chevalley-Maurel; Hans Kroeze; Blandine Franke-Fayard; Chris J. Janse; Kevin N. Couper; Shahid M. Khan

2014-08-25T23:59:59.000Z

450

Testing of a Receiver-Absorber-Converter (RAC) for the Integrated Solar Upper Stage (ISUS) program  

Science Journals Connector (OSTI)

The Integrated Solar Upper Stage (ISUS) is a solar bi-modal system based on a concept developed by Babcock & Wilcox in 1992. ISUS will provide advanced power and propulsion capabilities that will enable spacecraft designers to either increase the mass to orbit or decrease the cost to orbit for their satellites. In contrast to the current practice of using chemical propulsion for orbit transfer and photovoltaic conversion/battery storage for electrical power ISUS uses a single collection storage and conversion system for both the power and propulsion functions. The ISUS system is currently being developed by the Air Force’s Phillips Laboratory. The ISUS program consists of a systems analysis design and integration (SADI) effort and three major sub-system development efforts: the Concentrator Array and Tracking (CATS) sub-system which tracks the sun and collects/focuses the energy; the Receiver-Absorber-Converter (RAC) sub-system which receives and stores the solar energy transfers the stored energy to the propellant during propulsion operations and converts the stored energy to electricity during power operations; and the Cryogenic Storage and Propellant Feed Sub-system (CSPFS) which stores the liquid hydrogen propellant and provides it to the RAC during propulsion operations. This paper discuses the evolution of the RAC sub-system as a result of the component level testing and provides the initial results of systems level ground testing. A total of 5 RACs were manufactured as part of the Phillips Laboratory ISUS Technology Development program. The first series of component tests were carried out at the Solar Rocket Propulsion Laboratory at Edwards AFB California. These tests provided key information on the propulsion mode of operations. The second series of RAC tests were performed at the Thermionic Evaluation Facility (TEF) in Albuquerque New Mexico and provided information on the electrical performance of the RAC. The systems level testing was performed at the NASA Lewis Research Center Solar Simulator Facility (Tank 6) in Cleveland OH.

Kurt O. Westerman; Barry J. Miles

1998-01-01T23:59:59.000Z

451

MAGNESIUM ISOTOPE EVIDENCE FOR SINGLE STAGE FORMATION OF CB CHONDRULES BY COLLIDING PLANETESIMALS  

SciTech Connect

Chondrules are igneous spherical objects preserved in chondritic meteorites and believed to have formed during transient heating events in the solar protoplanetary disk. Chondrules present in the metal-rich CB chondrites show unusual chemical and petrologic features not observed in other chondrite groups, implying a markedly distinct formation mechanism. Here, we report high-precision Mg-isotope data for 10 skeletal olivine chondrules from the Hammadah al Hamra 237 (HH237) chondrite to probe the formation history of CB chondrules. The {sup 27}Al/{sup 24}Mg ratios of individual chondrules are positively correlated to their stable Mg-isotope composition (?{sup 25}Mg), indicating that the correlated variability was imparted by a volatility-controlled process (evaporation/condensation). The mass-independent {sup 26}Mg composition (?{sup 26}Mg*) of chondrules is consistent with single stage formation from an initially homogeneous magnesium reservoir if the observed ?{sup 25}Mg variability was generated by non-ideal Rayleigh-type evaporative fractionation characterized by a ? value of 0.5142, in agreement with experimental work. The magnitude of the mass-dependent fractionation (?300 ppm) is significantly lower than that suggested by the increase in {sup 27}Al/{sup 24}Mg values, indicating substantial suppression of isotopic fractionation during evaporative loss of Mg, possibly due to evaporation at high Mg partial pressure. Thus, the Mg-isotope data of skeletal chondrules from HH237 are consistent with their origin as melts produced in the impact-generated plume of colliding planetesimals. The inferred ?{sup 26}Mg* value of –3.87 ± 0.93 ppm for the CB parent body is significantly lower than the bulk solar system value of 4.5 ± 1.1 ppm inferred from CI chondrites, suggesting that CB chondrites accreted material comprising an early formed {sup 26}Al-free component.

Olsen, Mia B.; Schiller, Martin; Krot, Alexander N.; Bizzarro, Martin [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Copenhagen DK-1350 (Denmark)] [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Copenhagen DK-1350 (Denmark)

2013-10-10T23:59:59.000Z

452

Inspection of integrated two-stage liquefaction products as petroleum refining feedstocks  

SciTech Connect

Regardless of the specific technology used to produce transportation fuels from coal, the net product of the liquefaction process will have to undergo additional refining to make finished products. Consequently, there is a need to characterize the material that exits the liquefaction plant as net product and enters the refinery as feed. The net product of the Integrated Two-Stage Liquefaction (ITSL) process, as practiced at the 6 ton/day (5.5 tonne/day) Wilsonville, Alabama (USA) plant, is a distillable liquid boiling predominantly below 650{degrees}F (343{degrees}C). Products from ITSL operations at the Wilsonville plant were evaluated through the use of standard petroleum tests on several occasions. However, those evaluations were performed on materials generated much earlier in the ITSL campaign and, thus, may not be representative of products generated from the process as it is currently configured. For this work, net products were obtained for analysis from ITSL operations during fully lined-out material balance operating periods.Samples were taken fro Run 259G, which was operated with Ireland Mine coal (hvAb, Pittsburgh seam, West Virginia, USA) and from Run 260D, which was operated with Black Thunder Mine coal (subbituminous, Powder River Basin, Wyoming, USA). A complete suite of light crude oil assay tests was performed on each sample. These assays included tests on the whole coal liquid, and the separated naphtha (<380{degrees}F/193{degrees}C), jet fuel or kerosene (380{degrees}F/193{degrees}C {times} 510{degrees}F/266{degrees}C), and diesel fuel (>510{degrees}F/266{degrees}C) fractions. The results of the assays were compared against typical petroleum product specifications. The discussion will concentrate on the test results of the bituminous coal product.

Winschel, R.A.; Burke, F.P. [Consolidation Coal Co., Library, PA (United States); Zhou, P. [Burns and Roe Services Corp., Pittsburgh, PA (United States)

1991-12-31T23:59:59.000Z

453

CFD modeling of two-stage ignition in a rapid compression machine: Assessment of zero-dimensional approach  

SciTech Connect

In modeling rapid compression machine (RCM) experiments, zero-dimensional approach is commonly used along with an associated heat loss model. The adequacy of such approach has not been validated for hydrocarbon fuels. The existence of multi-dimensional effects inside an RCM due to the boundary layer, roll-up vortex, non-uniform heat release, and piston crevice could result in deviation from the zero-dimensional assumption, particularly for hydrocarbons exhibiting two-stage ignition and strong thermokinetic interactions. The objective of this investigation is to assess the adequacy of zero-dimensional approach in modeling RCM experiments under conditions of two-stage ignition and negative temperature coefficient (NTC) response. Computational fluid dynamics simulations are conducted for n-heptane ignition in an RCM and the validity of zero-dimensional approach is assessed through comparisons over the entire NTC region. Results show that the zero-dimensional model based on the approach of 'adiabatic volume expansion' performs very well in adequately predicting the first-stage ignition delays, although quantitative discrepancy for the prediction of the total ignition delays and pressure rise in the first-stage ignition is noted even when the roll-up vortex is suppressed and a well-defined homogeneous core is retained within an RCM. Furthermore, the discrepancy is pressure dependent and decreases as compressed pressure is increased. Also, as ignition response becomes single-stage at higher compressed temperatures, discrepancy from the zero-dimensional simulations reduces. Despite of some quantitative discrepancy, the zero-dimensional modeling approach is deemed satisfactory from the viewpoint of the ignition delay simulation. (author)

Mittal, Gaurav [Department of Mechanical Engineering, The University of Akron, Akron, OH 44325 (United States); Raju, Mandhapati P. [General Motor R and D Tech Center, Warren, MI 48090 (United States); Sung, Chih-Jen [Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269 (United States)

2010-07-15T23:59:59.000Z

454

Nondestructive and noncontact methods for optoelectronic diagnostics of solar cells at all stages of the fabrication process are in strong demand.  

E-Print Network (OSTI)

Nondestructive and noncontact methods for optoelectronic diagnostics of solar cells at all stages-destructive diffusion-wave method for optoelectronic transport and equivalent electrical circuit diagnostics

Mandelis, Andreas

455

Dynamic modeling of a single-stage downward firing, entrained flow gasifier  

SciTech Connect

The gasifier is the heart of the integrated gasification combined cycle (IGCC), a technology that has emerged as an attractive alternative to conventional coal-fired power plant technology due to its higher efficiency and cleaner environmental performance especially with the option of CO{sub 2} capture and sequestration. Understanding the optimal performance of the gasifier is therefore paramount for the efficient operation of IGCC power plants. Numerous gasifier models of varying complexity have been developed to study the various aspects of gasifier performance. These range from simple one-dimensional (1D) process-type models to rigorous higher order 2-3D models based on computational fluid dynamics (CFD). Whereas high-fidelity CFD models can accurately predict most key aspects of gasifier performance, they are computationally expensive and typically take hours to days to execute on high-performance computers. Therefore, faster 1D partial differential equation (PDE)-based models are required for use in dynamic simulation studies, control system analysis, and training applications. A number of 1D gasifier models can be found in the literature, but most are steady-state models that have limited application in the practical operation of the gasifier. As a result, 1D PDE-based dynamic models are needed to further study and predict gasifier performance under a wide variety of process conditions and disturbances. In the current study, a 1D transient model of a single-stage downward-fired GE/Texaco-type entrained-flow gasifier has been developed. The model comprises mass, momentum and energy balances for the gas and solid phases. The model considers the initial gasification processes of water evaporation and coal devolatilization. In addition, the key heterogeneous and homogeneous chemical reactions have been modeled. The resulting time-dependent PDE model is solved using the well-known method of lines approach in Aspen Custom Modeler®, whereby the PDEs in the spatial domain are discretized and the resulting differential algebraic equations (DAEs) are then integrated over time using a dynamic integrator. The dynamic response results of the gasifier performance parameters to certain disturbances commonly encountered during practical operation are presented. These disturbances include ramp and step changes to input variables such as coal flow rate, oxygen-to-coal ratio and water-to-coal ratio among others. Comparison of model predictions to available dynamic data will also be discussed.

Kasule, J., Turton, R., Bhattacharyya, D., Zitney, S.

2012-01-01T23:59:59.000Z

456

CX-008789: Categorical Exclusion Determination | Department of Energy  

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

89: Categorical Exclusion Determination 89: Categorical Exclusion Determination CX-008789: Categorical Exclusion Determination Routine Maintenance of Curecanti-Lost Canyon 230 Kilovolt Access Roads and Western Area Power Administration Right-of-Way in Montrose, Ouray, San Miguel, Dolores, and Montezuma Counties, Colorado CX(s) Applied: B1.3 Date: 05/22/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region Western Area Power Administration (Western) proposes to perform routine maintenance of existing access roads and right-of-way (ROW) along the Curecanti-Lost Canyon (CCI-LCN) 230-kilovolt (kV) transmission line at structures 0/2 to 1/3, 3/2, 8/1, 8/6, 9/6 to 9/7, 12/2 to 14/2, 15/5, 17/2, 17/3, 36/5, 37/1, 43/2, 47/2, 47/4, and 56/4 (approximately 60 miles).

457

Study of Ion Cooling and Ejection from Two Stage Linear Quadrupole Ion Trap consisted of RFQ ion guides  

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

Ion Cooling and Ejection from Two Stage Linear Quadrupole Ion Trap consisted of RFQ ion guides Ion Cooling and Ejection from Two Stage Linear Quadrupole Ion Trap consisted of RFQ ion guides Kozlovskiy V.I., Filatov V. V., Shchepunov (UNIRIB, O.R.A.U. Oak Ridge, TN, USA) V. A., Brusov V. S., Pikhtelev A. R., Zelenov V. V. Introduction The primary objective of this work concerns linear quadrupole ion traps, which are commonly used to interface a continuous ion beam from an external source with a mass analyzer, requiring bunched or pulsed beams. We assume that the ions prepared for mass analysis, are well spatially shaped, and normalized by ion kinetic energy. (Slava, I don't understand the meaning of the previous sentence - I wrote it as I interpreted what you are saying - I may be all wrong) In our work, such a device was developed and built to interface a source of continuous ion beams and a

458

Discriminating the Intraerythrocytic Lifecycle Stages of the Malaria Parasite Using Synchrotron FT-IR Microspectroscopy and an Artificial Neural Network  

Science Journals Connector (OSTI)

Grant T. Webster †, Katherine A. de Villiers ‡, Timothy J. Egan ‡, Samantha Deed §, Leann Tilley §, Mark J. Tobin ?, Keith R. Bambery †, Don McNaughton † and Bayden R. Wood *† ... Centre for Biospectroscopy and School of Chemistry, Monash University, Clayton, Victoria 3800, Australia, Department of Chemistry, University of Cape Town, Private Bag, Rondebosch 7701, South Africa, Department of Biochemistry and Centre of Excellence for Coherent X-ray Science, La Trobe University, Melbourne, Victoria 3086, Australia, and Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia ... A total of 128 sample scans per spectrum were collected from 30 individual cells for each erythrocytic stage in transmission mode by scanning the computer-controlled microscope stage to preselected points using the video-assisted software. ...

Grant T. Webster; Katherine A. de Villiers; Timothy J. Egan; Samantha Deed; Leann Tilley; Mark J. Tobin; Keith R. Bambery; Don McNaughton; Bayden R. Wood

2009-03-11T23:59:59.000Z

459

THE EXPERIMENTAL STUDY OF A SINGLE STAGE G-M REFRIGERATOR WITH THE REGENERATOR SET OUTSIDE THE CYLINDER.  

SciTech Connect

In this paper, a single-stage G-M refrigerator with the regenerator set outside the cylinder is presented. The experimental system for testing the performance of the cryocooler was constructed. The lowest temperature was 14K when the operating frequency was 0.6 Hz. The cooling capacity of 4.4W has been obtained at 20K. The effects of operating parameters of the refrigerator on cooling performance were also experimentally studied.

WANG,L.

1999-07-12T23:59:59.000Z

460

Effects of fish oil and butyrate on diet-mediated apoptosis at the promotion stage of colon carcinogenesis  

E-Print Network (OSTI)

EFFECTS OF FISH OIL AND BUTYRATE ON DIET-MEDIATED APOPTOSIS AT THE PROMOTION STAGE OF COLON CARCINOGENESIS A Thesis by ANNE HENRY NEWTON Submitted to the Office of Graduate Studies of Texas A&M University in partial... by ANNE HENRY NEWTON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by...

Newton, Anne Henry

2005-11-01T23:59:59.000Z

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461

Figure 1. Ankle behavior can be approximated by a linear torsional spring in the progression stage of the stance phase of normal gait.  

E-Print Network (OSTI)

Figure 1. Ankle behavior can be approximated by a linear torsional spring in the progression stage of the stance phase of normal gait. Abstract--In this paper we explore the mechanical behavior of the ankle in the progression stage of stance during normal walking. We show that the torque/angle behavior of the ankle during

Dollar, Aaron M.

462

Permanence and periodicity of a delayed ratio-dependent predator-prey model with Holling type functional response and stage structure  

Science Journals Connector (OSTI)

A periodic and delayed ratio-dependent predator-prey system with Holling type III functional response and stage structure for both prey and predator is investigated. It is assumed that immature predator and mature individuals of each species are divided ... Keywords: Periodic solution, Permanence, Ratio-dependence, Stage structure, Time delay

Zuxiong Li; Lansun Chen; Jianmin Huang

2009-11-01T23:59:59.000Z

463

A Two-Stage Kalman Filter Approach for Robust and Real-Time Power System State Estimation  

SciTech Connect

As electricity demand continues to grow and renewable energy increases its penetration in the power grid, realtime state estimation becomes essential for system monitoring and control. Recent development in phasor technology makes it possible with high-speed time-synchronized data provided by Phasor Measurement Units (PMU). In this paper we present a two-stage Kalman filter approach to estimate the static state of voltage magnitudes and phase angles, as well as the dynamic state of generator rotor angles and speeds. Kalman filters achieve optimal performance only when the system noise characteristics have known statistical properties (zero-mean, Gaussian, and spectrally white). However in practice the process and measurement noise models are usually difficult to obtain. Thus we have developed the Adaptive Kalman Filter with Inflatable Noise Variances (AKF with InNoVa), an algorithm that can efficiently identify and reduce the impact of incorrect system modeling and/or erroneous measurements. In stage one, we estimate the static state from raw PMU measurements using the AKF with InNoVa; then in stage two, the estimated static state is fed into an extended Kalman filter to estimate the dynamic state. Simulations demonstrate its robustness to sudden changes of system dynamics and erroneous measurements.

Zhang, Jinghe; Welch, Greg; Bishop, Gary; Huang, Zhenyu

2014-04-01T23:59:59.000Z

464

Sulfur removal in advanced two-staged pressurized fluidized-bed combustion; [Quarterly] report, September 1--November 1993  

SciTech Connect

The objective of this study is to obtain data on the rates of reaction between hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction between H{sub 2}S and calcium carbonate. To achieve this objective, the rates of reaction between hydrogen sulfide and uncalcined calcium-based sorbents will be determined by conducting tests in pressurized thermogravimetric analyzer (TGA) and high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. A pressurized TGA unit has been purchased by IGT for use in this project.

Abbasian, J.; Hill, A.H.; Wangerow, J.R.; Rue, D.M.

1994-03-01T23:59:59.000Z

465

Sulfur removal in advanced two-stage fluidized-bed combustion. [Quarterly] technical report, December 1, 1993--February 28, 1994  

SciTech Connect

The objective of this study is to obtain data on the rates of reaction between, hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction between H{sub 2}S and calcium carbonate. To achieve this objective the rates of reaction between hydrogen sulfide and uncalcined calcium-based sorbents will be determined by conducting tests in pressurized thermogravimetric analyzer (TGA) and high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter, the high-pressure thermogravimetric analyzer (HPTGA) unit was installed and the shakedown process was completed. Several tests were conducted in the HPTGA unit to establish the operating procedure and the repeatability of the experimental results. Sulfidation by conducting the baseline sulfidation tests. The results are currently being analyzed.

Abbasian, J.; Hill, A.H.; Wangerow, J.R.; Rue, D.M. [Inst. of Gas Technology, Chicago, IL (United States)

1994-06-01T23:59:59.000Z

466

Intergenic suppression of stage II sporulation defects by a mutation in the major vegetative sigma factor gene (rpoD) of Bacillus subtilis  

Science Journals Connector (OSTI)

The Bacillus subtilis intergenic suppressor mutations crsA and rvtA, previously shown to restore sporulation competence to a variety of strains containing stage 0 sporulation defects, also suppress lesions in the stage II sporulation genes spoIIF, spoIIN and spoIIJ. They do not rescue sporulation in other stage II through stage V sporulation mutations. Cells containing spoIIN, spoIIF96 and spoIIJ::Tn917 mutations fail to transcribe spoIID, a late stage II gene. Introduction of crsA47 into spoIINts279, spoIIF96, or spoIIJ::Tn917 mutant backgrounds circumvents the need for the spoIIF, IIN, and IIJ products, restoring both expression of spoIID, and sporulation competence.

A. Lee; M. Malak; P. Louie; J. Arjomand; C. Ginther; T. Leighton

1992-01-01T23:59:59.000Z

467

Evaluation of two-stage system for neutron measurement aiming at increase in count rate at Japan Atomic Energy Agency-Fusion Neutronics Source  

SciTech Connect

In order to increase the count rate capability of a neutron detection system as a whole, we propose a multi-stage neutron detection system. Experiments to test the effectiveness of this concept were carried out on Fusion Neutronics Source. Comparing four configurations of alignment, it was found that the influence of an anterior stage on a posterior stage was negligible for the pulse height distribution. The two-stage system using 25 mm thickness scintillator was about 1.65 times the count rate capability of a single detector system for d-D neutrons and was about 1.8 times the count rate capability for d-T neutrons. The results suggested that the concept of a multi-stage detection system will work in practice.

Shinohara, K., E-mail: shinohara.koji@jaea.go.jp; Ochiai, K.; Sukegawa, A. [Japan Atomic Energy Agency, Naka, Ibaraki 311-0193 (Japan); Ishii, K.; Kitajima, S. [Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, Miyagi 980-8579 (Japan); Baba, M. [Cyclotron and Radioisotope Center, Tohoku University, Sendai, Miyagi 980-8578 (Japan); Sasao, M. [Organization for Research Initiatives and Development, Doshisha University, Kyoto 602-8580 (Japan)

2014-11-15T23:59:59.000Z

468

Uncertainty analysis of an IGCC system with single-stage entrained-flow gasifier  

SciTech Connect

Integrated Gasification Combined Cycle (IGCC) systems using coal gasification is an attractive option for future energy plants. Consequenty, understanding the system operation and optimizing gasifier performance in the presence of uncertain operating conditions is essential to extract the maximum benefits from the system. This work focuses on conducting such a study using an IGCC process simulation and a high-fidelity gasifier simulation coupled with stochastic simulation and multi-objective optimization capabilities. Coal gasifiers are the necessary basis of IGCC systems, and hence effective modeling and uncertainty analysis of the gasification process constitutes an important element of overall IGCC process design and operation. In this work, an Aspen Plus{reg_sign} steady-state process model of an IGCC system with carbon capture enables us to conduct simulation studies so that the effect of gasification variability on the whole process can be understood. The IGCC plant design consists of an single-stage entrained-flow gasifier, a physical solvent-based acid gas removal process for carbon capture, two model-7FB combustion turbine generators, two heat recovery steam generators, and one steam turbine generator in a multi-shaft 2x2x1 configuration. In the Aspen Plus process simulation, the gasifier is represented as a simplified lumped-parameter, restricted-equilibrium reactor model. In this work, we also make use of a distributed-parameter FLUENT{reg_sign} computational fluid dynamics (CFD) model to characterize the uncertainty for the entrained-flow gasifier. The CFD-based gasifer model is much more comprehensive, predictive, and hence better suited to understand the effects of uncertainty. The possible uncertain parameters of the gasifier model are identified. This includes input coal composition as well as mass flow rates of coal, slurry water, and oxidant. Using a selected number of random (Monte Carlo) samples for the different parameters, the CFD model is simulated to observe the variations in the output variables (such as syngas composition, gas and ash flow rates etc.). The same samples are then used to conduct simulations using the Aspen Plus IGCC model. The simulation results for the high-fidelity CFD-based gasifier model and the Aspen Plus equilibrium reactor model for selected uncertain parameters are then used to perform the estimation. Defining the ratio of CFD based results to the Aspen Plus result as the uncertainty factor (UF), the work quantifies the extent of uncertainty and then uses uniform* distribution to characterize the uncertainty factor distribution. The characterization and quantification of uncertainty is then used to conduct stochastic simulation of the IGCC system in Aspen Plus. The CAPE-OPEN compliant stochastic simulation capability allows one to conduct a rigorous analysis and generate the feasible space for the operation of the IGCC system. The stochastic simulation results can later be used to conduct multi-objective optimization of the gasifier using a set of identified decision variables. The CAPE-OPEN compliant multi-objective capability in Aspen Plus can be used to conduct the analysis. Since the analysis is based on the uncertainty modeling studies of the gasifier, the optimization accounts for possible uncertainties in the operation of the system. The results for the optimized IGCC system and the gasifier, obtained from the stochastic simulation results, are expected to be more rigorous and hence closer to those obtained from CFD-based rigorous modeling.

Shastri, Y.; Diwekar, U.; Zitney, S.

2008-01-01T23:59:59.000Z

469

Sulfur removal in advanced two stage pressurized fluidized bed combustion. Technical report, 1 March--31 May 1994  

SciTech Connect

The objective of this study is to obtain data on the rates of reaction between hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction between H{sub 2}S and calcium carbonate. To achieve this objective, the rates of reaction between hydrogen sulfide and uncalcined calcium-based sorbents will be determined by conducting tests in pressurized thermogravimetric analyzer (TGA) and high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter a series of sulfidation tests were conducted in the high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter a series of sulfidation tests were conducted in the high-pressure high-temperature thermogravimetric analyzer (HPTGA unit) using limestone and dolomite. The results suggest that half-calcined dolomite is much more reactive than uncalcined limestone. Also, temperature in the range of 800 to 950 C did not significantly affect the sulfidation reaction rates for both limestone and dolomite.

Abbasian, J.; Chowdiah, P.; Hill, A.H.; Rue, D.M. [Inst. of Gas Technology, Chicago, IL (United States)

1994-09-01T23:59:59.000Z

470

Characterization of Coal Combustion and Steam Temperature with Respect to Staged-Air Angle in a 600 MWe Down-Fired Boiler  

Science Journals Connector (OSTI)

Characterization of Coal Combustion and Steam Temperature with Respect to Staged-Air Angle in a 600 MWe Down-Fired Boiler ... The explanation behind this phenomenon is the combined effects of (i) the drop in the overall gas temperatures and (ii) the enhancement in the mixing of staged air with the ignited coal/air mixture in the primary combustion zone after the angle reduction. ... In order to reduce the oil consumption during the start up and low load operation of the W-shaped flame pulverized coal-fired utility boiler, tiny-oil technol. is introduced to the cyclone burner based on the design concept of staged ignition. ...

Min Kuang; Zhengqi Li; Zhongqian Ling; Zhuofu Chen; Danyan Yuan

2014-05-20T23:59:59.000Z

471

Compact disposal of high-energy electron beams using passive or laser-driven plasma decelerating stage  

SciTech Connect

A plasma decelerating stage is investigated as a compact alternative for the disposal of high-energy beams (beam dumps). This could benefit the design of laser-driven plasma accelerator (LPA) applications that require transportability and or high-repetition-rate operation regimes. Passive and laser-driven (active) plasma-based beam dumps are studied analytically and with particle-in-cell (PIC) simulations in a 1D geometry. Analytical estimates for the beam energy loss are compared to and extended by the PIC simulations, showing that with the proposed schemes a beam can be efficiently decelerated in a centimeter-scale distance.

Bonatto, A.; Schroeder, C.B.; Vay, J.-L.; Geddes, C.R.; Benedetti, C.; Esarey and, E.; Leemans, W.P.

2014-07-13T23:59:59.000Z

472

Long Interspersed Nuclear Element 1 Hypomethylation Is a Marker of Poor Prognosis in Stage IA Non–Small Cell Lung Cancer  

Science Journals Connector (OSTI)

...marker, thus increasing the statistical power for analysis of individual stages. As...Grants-in-Aid for Scientific Research from the Japan Society for the Promotion of Science...Supplementary Data Long interspersed nuclear element 1 hypomethylation is a marker...

Kenichiro Saito; Kazuyuki Kawakami; Isao Matsumoto; Makoto Oda; Go Watanabe; and Toshinari Minamoto

2010-04-15T23:59:59.000Z

473

Comparison of demographics, treatment patterns, health care utilization, and costs among elderly patients with extensive-stage small cell and metastatic non-small cell lung cancers  

Science Journals Connector (OSTI)

Limited data exist regarding real-world treatment patterns, resource utilization, and costs of extensive-stage small cell lung cancer (esSCLC) among elderly patients in the United States. While abundant data a...

Sudeep J Karve; Gregory L Price; Keith L Davis…

2014-11-01T23:59:59.000Z

474

Complete Loss of PTEN Protein Expression Correlates with Shorter Time to Brain Metastasis and Survival in Stage IIIB/C Melanoma Patients with BRAFV600 Mutations  

Science Journals Connector (OSTI)

...Expression Correlates with Shorter Time to Brain Metastasis and Survival in Stage IIIB...significantly shorter time to melanoma brain metastasis (MBM), but not to liver...loss was associated with shorter time to brain metastasis and overall survival specifically...

Amanda D. Bucheit; Guo Chen; Alan Siroy; Michael Tetzlaff; Russell Broaddus; Denai Milton; Patricia Fox; Roland Bassett; Patrick Hwu; Jeffrey E. Gershenwald; Alexander J. Lazar; Michael A. Davies

2014-11-01T23:59:59.000Z

475

Noise analysis of inkjet printers over stages and quality of the job and frequency sources from equipment in laboratory optical trap room  

E-Print Network (OSTI)

This experiment measured the level of sound emitted over the course of the print cycle by an HP inkjet printer and determined how the level varies with changes in the print quality settings and stages of the print cycle. ...

Moore, Jennifer H. (Jennifer Haydon)

2009-01-01T23:59:59.000Z

476

Improved high efficiency third stage separator cyclones for separation of fines from fluid catalytic cracking flue gas  

SciTech Connect

Stairmand type small diameter (0.254 m) multicyclones were cold flow tested for fluid catalytic cracking third stage separator application. The gas discharge from the cyclone dust outlet into the common collection hopper was found to far exceed the hopper bleed rate (underflow). The excess gas reentrained dust from the hopper back into cyclones, which lowered collection efficiencies. Vortex {open_quotes}stabilization{close_quotes} using apex cones was unsuccessful whereas a Mobil proprietary cyclone modification was successful in minimizing excess gas discharge and dust reentrainment at the cyclone-hopper boundary. In tests at 700 {degrees}C, the modified cyclones captured all particles above 4 {mu}m. Mobil-Kellogg incorporated the modified cyclones in a new third stage separator design which is targeted for achieving lowest opacity and <50 mg/Nm{sup 3} emissions at the stack. The first such unit will be commercialized in Mobil`s newest catalytic cracker (M.W. Kellogg design) under construction in Altona, Australia in late 1996. 5 refs., 4 figs., 2 tabs.

Chitnis, G.K.; Schatz, K.W. [Mobil Technology Co., Paulsboro, NJ (United States); Bussey, B.K. [M.W. Kellogg Co., Houston, TX (United States)

1996-12-31T23:59:59.000Z

477

Development of a common dual axle VNTTM for single- and two-stage off-highway applications  

Science Journals Connector (OSTI)

ABSTRACT Honeywell Turbo Technologies has long been a leader in both the on- and offhway commercial vehicle turbocharger segments. Variable geometry turbines have been used in on-highway applications since the 1990's but to date have had limited usage in off-highway. This paper describes how the patented Dual Axle Variable Nozzle Turbine technology has been adapted and applied for use in the modern heavy duty offenvironment. It details performance targets and mechanical features that were optimized and combined with a new electro-hydraulic actuation system to meet the stringent performance, durability, and emissions targets of a modern TierIV-compliant off-highway diesel engine. The result of the development is the DutyDrive VNTTM which entered production at the end of 2010. The high performance and broad flow range of Honeywell's Variable Nozzle Turbine allowed John Deere to use one common turbocharger to satisfy over 20 unique power ratings, including both two-stage and single stage applications, greatly reducing complexity and development costs. Additionally, this new generation turbocharger assisted John Deere to increase engine power and torque by 10%, while meeting reliability expectations in the high-temperature, high-vibration under-hood environment of a modern premium off-highway application.

J. Wilson; M. Avila; P. Davies; N. Theiss; B. Zollinger

2012-01-01T23:59:59.000Z

478

Two-phase pressure transient analysis for multi-stage fractured horizontal well in shale gas reservoirs  

Science Journals Connector (OSTI)

Abstract Most researches on shale gas production and pressure transient analysis placed more emphasis on single-phase flow, the two-phase flow caused by flowback after hydrofracture in shale gas reservoirs does not attract much attention. This paper presents a two-phase pressure transient analysis model of multi-stage fractured horizontal well with the consideration of wellbore storage, skin effect, two-phase saturation, hydraulic fractures parameters and desorption characteristics of shale gas reservoirs. Accurate solution to this flow model is obtained by the use of source function theory, Laplace transform, three-dimensional eigenvalue method and orthogonal transformation. Pseudo-pressure and pseudo-pressure derivative type curve is plotted by using the Stehfest algorithm. Seven different flow regimes have been identified and the effects of influence factors such as initial saturation, skin factor, absorption index, fracture stages, horizontal well lateral length and wellbore storage coefficient have also been discussed. The presents research could be used to interpret the pressure behavior more accurately and effectively of shale gas reservoirs.

Weiyang Xie; Xiaoping Li; Liehui Zhang; Junchao Wang; Lina Cao; Lin Yuan

2014-01-01T23:59:59.000Z

479

Interface and process for enhanced transmission of non-circular ion beams between stages at unequal pressure  

DOE Patents (OSTI)

The invention discloses a new interface with non-circular conductance limit aperture(s) useful for effective transmission of non-circular ion beams between stages with different gas pressure. In particular, the invention provides an improved coupling of field asymmetric waveform ion mobility spectrometry (FAIMS) analyzers of planar or side-to-side geometry to downstream stages such as mass spectrometry or ion mobility spectrometry. In this case, the non-circular aperture is rectangular; other geometries may be optimum in other applications. In the preferred embodiment, the non-circular aperture interface is followed by an electrodynamic ion funnel that may focus wide ion beams of any shape into tight circular beams with virtually no losses. The jet disrupter element of the funnel may also have a non-circular geometry, matching the shape of arriving ion beam. The improved sensitivity of planar FAIMS/MS has been demonstrated in experiments using a non-contiguous elongated aperture but other embodiments (e.g., with a contiguous slit aperture) may be preferable, especially in conjunction with an ion funnel operated at high pressures.

Tang, Keqi (Richland, WA); Shvartsburg, Alexandre A. (Richland, WA); Smith, Richard D. (Richland, WA)

2008-03-04T23:59:59.000Z

480

Investigations of early stage precipitation in a tungsten-rich nickel-base superalloy using SAXS and SANS  

Science Journals Connector (OSTI)

Abstract Characterization of the early stage precipitation is an important issue as it controls the emerging microstructure developed on Ni-based superalloys which are used as single crystal blades in gas turbines. The difficulty is that the gamma prime precipitation occurs at high temperatures and the reaction kinetic is very fast. Therefore, experimental methods with high time resolution are needed to monitor ?? precipitation. By using the high flux synchrotron instrument HARWI-II set up of the Helmholtz–Zentrum Geesthacht with a fast data collection detector, it was possible to observe the creation of fine precipitates and their early growth in a tungsten-rich Ni-base superalloy. The cooling down of the superalloy from the single-phase region to lower temperatures already leads to the formation of precipitates in the size range of a few nm. The formation and growth of the precipitates at this early stage is described in detail. In addition, SANS measurements were performed at the new SANS-1 instrument at Maier–Leibnitz Zentrum (MLZ) in Garching to extend the results to larger precipitate sizes. DSC experiments were used to determine the critical temperatures of the formation of these fine precipitates, as well as the temperature at which they dissolve during heating (?? solvus temperature).

R. Gilles; D. Mukherji; H. Eckerlebe; L. Karge; P. Staron; P. Strunz; Th. Lippmann

2014-01-01T23:59:59.000Z

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481

Envelope-related energy demand: A design indicator of energy performance for residential buildings in early design stages  

Science Journals Connector (OSTI)

The architectural design variables which most influence the energy performance of a building are the envelope materials, shape and window areas. As these start to be defined in the early design stages, designers require simple tools to obtain information about the energy performance of the building for the design variations being considered at this phase. The shape factor is one of those tools, but it fails to correlate with energy demand in the presence of important solar gains. This paper presents a new design indicator of energy performance for residential buildings, the Envelope-Related Energy Demand (ERED), which aims to overcome the shortcomings of the shape factor while maintaining a reasonable simplicity of use. The inputs to ERED are areas of envelope elements (floor, walls, roofs and windows), U-values of envelope materials, solar heat gain coefficients (SHGC) of windows and site related parameters, concerning temperature and solar irradiation. ERED was validated against detailed simulation results of 8000 hypothetical residential buildings, varying in envelope shape, window areas and materials. Results show that there is a strong correlation between ERED and simulated energy demand. These results confirm the adequacy of ERED to assist design decisions in early stages of the design process.

Vasco Granadeiro; João R. Correia; Vítor M.S. Leal; José P. Duarte

2013-01-01T23:59:59.000Z

482

Feasibility of bioengineered two-stages sequential batch reactor and filtration–adsorption process for complex agrochemical effluent  

Science Journals Connector (OSTI)

Abstract In the present study, the feasibility of a bioengineered two-stages sequential batch reactor (BTSSBR) followed by filtration–adsorption process was investigated to treat the agrochemical effluent by overcoming factor affecting process stability such as microbial imbalance and substrate sensitivity. An air stripper stripped 90% of toxic ammonia, and combined with other streams for bio-oxidation and filtration–adsorption. The BTSSBR system achieved bio-oxidation at 6 days hydraulic retention time by fending off microbial imbalance and substrate sensitivity. The maximum reduction in COD and BOD by heterotrophic bacteria in the first reactor was 87% and 90%, respectively. Removal of toxic ammoniacal-nitrogen by autotrophic bacteria in a post-second stage bio-oxidation was 97%. The optimum filtration and adsorption of pollutants were achieved at a filtration rate of 10 and 9 m3 m?2 h?1, respectively. The treatment scheme comprising air stripper, BTSSBR and filtration–adsorption process showed a great promise for treating the agrochemical effluent.

Pravin Manekar; Rima Biswas; Chaitali Urewar; Sukdeb Pal; Tapas Nandy

2013-01-01T23:59:59.000Z

483

OPTIMIZATION OF A TWO-STAGE ADR FOR THE SOFT X-RAY SPECTROMETER (SXS) INSTRUMENT ON THE ASTRO-H MISSION  

SciTech Connect

NASA/Goddard Space Flight Center has begun developing the Soft X-ray Spectrometer (SXS) instrument that will be flown on the Japanese Astro-H mission. The SXS's 36-pixel detector array will be cooled to 50 mK using a two-stage adiabatic demagnetization refrigerator (ADR). A complicating factor for its design is that the ADR will be integrated into a superfluid helium dewar at 1.3 K that will be coupled to a 1.8 K Joule-Thomson (JT) stage through a heat switch. When liquid helium is present, the coupling will be weak, and the JT stage will act primarily as a shield to reduce parasitic heat loads. When the liquid is depleted, the heat switch will couple more strongly so that the ADR can continue to operate using the JT stage as its heat sink. A two-stage ADR is the most mass efficient option and it has the operational flexibility to work well with a stored cryogen and a cryocooler. The stages are operated independently, and this opens up a very large parameter space for optimizing the design. This paper discusses the optimization process and most relevant trades considered in the design of the SXS ADR, and its expected performance.

Shirron, P. J.; Kimball, M. O.; Wegel, D. C. [NASA/Goddard Space Flight Center, Greenbelt, MD, 20771 (United States); Miller, F. K. [University of Wisconsin, Dept. of Mech. Eng., Madison, WI, 53715 (United States)

2010-04-09T23:59:59.000Z

484

Two-stage plasma gun based on a gas discharge with a self-heating hollow emitter  

SciTech Connect

The paper presents the results of tests of a new compact two-stage bulk gas plasma gun. The plasma gun is based on a nonself-sustained gas discharge with an electron emitter based on a discharge with a self-heating hollow cathode. The operating characteristics of the plasma gun are investigated. The discharge system makes it possible to produce uniform and stable gas plasma in the dc mode with a plasma density up to 3x10{sup 9} cm{sup -3} at an operating gas pressure in the vacuum chamber of less than 2x10{sup -2} Pa. The device features high power efficiency, design simplicity, and compactness.

Vizir, A. V.; Tyunkov, A. V.; Shandrikov, M. V.; Oks, E. M. [Institute of High Current Electronics, Russian Academy of Sciences, Tomsk 634055 (Russian Federation)

2010-02-15T23:59:59.000Z

485

Application of a three-stage approach for modeling the complete period of catalyst deactivation during hydrotreating of heavy oil  

Science Journals Connector (OSTI)

Abstract Modeling the catalyst deactivation due to hydrodeasphaltenization (HDAsph), hydrodemetallization (HDM) and hydrodesulfurization (HDS) reactions with time-on-stream (TOS) was carried out by using a model that considers three deactivation stages: start-of-run (SOR), middle-of-run (MOR) and end-of-run (EOR). Experimental data of kinetics, intra-particle mass transfer and conversion affected by deactivation phenomena were obtained from laboratory scale reactor. Loss of activity was studied at constant operating conditions of temperature, pressure, liquid hourly space velocity (LHSV) and H2-to-oil ratio for a range of time-on-stream. It is found that different deactivation patterns are obtained depending on the considered reaction. It is predicted that catalyst exhibits higher rate of deactivation for HDS than for HDM at long TOS.

Ignacio Elizalde; Jorge Ancheyta

2014-01-01T23:59:59.000Z

486

A Monte Carlo simulation based two-stage adaptive resonance theory mapping approach for offshore oil spill vulnerability index classification  

Science Journals Connector (OSTI)

Abstract In this paper, a Monte Carlo simulation based two-stage adaptive resonance theory mapping (MC-TSAM) model was developed to classify a given site into distinguished zones representing different levels of offshore Oil Spill Vulnerability Index (OSVI). It consisted of an adaptive resonance theory (ART) module, an ART Mapping module, and a centroid determination module. Monte Carlo simulation was integrated with the TSAM approach to address uncertainties that widely exist in site conditions. The applicability of the proposed model was validated by classifying a large coastal area, which was surrounded by potential oil spill sources, based on 12 features. Statistical analysis of the results indicated that the classification process was affected by multiple features instead of one single feature. The classification results also provided the least or desired number of zones which can sufficiently represent the levels of offshore OSVI in an area under uncertainty and complexity, saving time and budget in spill monitoring and response.

Pu Li; Bing Chen; Zelin Li; Xiao Zheng; Hongjing Wu; Liang Jing; Kenneth Lee

2014-01-01T23:59:59.000Z

487

Economic and thermal feasibility of multi stage flash desalination plant with brine–feed mixing and cooling  

Science Journals Connector (OSTI)

Abstract Improving the performance of MSF (multi stage flash) desalination plants is a major challenge for desalination industry. High feed temperature in summer shortens the evaporation range of MSF plants and limits their yield. Installing a cooler at the feed intake expands the evaporation range of MSF plants and increases their yield. Adding a cooler and a mixing chamber increases the capital and operational costs of MSF plants. This paper presents thermal and economic analysis of installing a feed cooler at the plant intake. The profit of selling the additionally produced water must cover the cost of the cooling system. The selling prices for a reasonable breakeven depend on the selected cooling temperature. The cost of installing coolers capable of maintaining feed–brine mixture temperatures of 18–20 °C shows breakeven selling prices of 0.5–0.9 $/m3. These prices fall within the current range of potable water selling prices.

Majed M. Alhazmy

2014-01-01T23:59:59.000Z

488

Catalytic multi-stage liquefaction of coal. Eleventh quarterly progress report, April 1, 1995--June 30, 1995  

SciTech Connect

This quarterly report covers the activities of Catalytic Multi-Stage Liquefaction of Coal during the Period April 1 - June 30, 1995, at Hydrocarbon Technologies, Inc. in Lawrenceville, New Jersey. This DOE Contract Period was from December 8, 1992 to December 7, 1994 and has been extended to September 30, 1995. The overall objective of this program is to produce liquid fuels from coal by direct liquefaction at a cost that is competitive with conventional fuels. Specifically, this continuous bench-scale program contains provisions to examine new ideas in areas such as: low temperature pretreatments, more effective catalysts, on-line hydrotreating, new coal feedstocks, other hydrogen sources, more concentrated coal feeds and other highly responsive process improvements while assessing the design and economics of the bench-scale results. This quarterly report covers work on Laboratory Scale Studies, Continuous Bench-Scale Operations, Technical Assessment and Project Management.

Comolli, A.G.; Johanson, E.S.; Lee, L.K. [and others

1995-10-01T23:59:59.000Z

489

Catalytic Multi-Stage Liquefaction of Coal. Second quarterly report, 1 January 1993--31 March 1993  

SciTech Connect

This quarterly report covers activities of Catalytic Multi-Stage Liquefaction of Coal during the period January 1--March 31, 1993, at Hydrocarbon Research, Inc. in Lawrenceville and Princeton, New Jersey. This DOE contract period is from December 8, 1992 to December 7, 1994. The overall objective of the program is to produce liquid fuels from direct coal liquefaction at a cost that is competitive with conventional fuels. Specifically, this continuous bench-scale program contains provisions to examine new ideas in areas such as: low temperature pretreatments, more effective catalysts, on-line hydrotreating, new coal feedstocks, other hydrogen sources, more concentrated coal feeds and other highly responsive process improvements while assessing the design and economics of bench-scale results. The quarterly report covers work on Laboratory Scale Studies, Continuous Bench-Scale Operations, Technical Assessment and Project Management.

Comolli, A.G.; Johanson, E.S.; Lee, L.K.; Pradhan, V.R.; Stalzer, R.H.

1993-08-01T23:59:59.000Z

490

Towards greener horizontal-axis wind turbines: analysis of carbon emissions, energy and costs at the early design stage  

Science Journals Connector (OSTI)

Abstract This paper describes the development of a quantitative analysis system as a platform for rapidly estimate energy, costs and carbon emission to facilitate the comparison of different wind turbine concept designs. This system aimed specifically at wind turbine manufacturing processes due to the fact that a large proportion of the environmental, costs and energy impacts would occur at this stage. The proposed method supports an initial assessment of multiple design concepts which allows the selection and development of a “greener” wind turbine. The developed system enables concept design of commercial wind turbine towers of hub heights between 44 and 135 m. The method supports an accurate estimation in regards to the dimension, energy consumed, maximum power output, costs and carbon emission in the early design phases of a wind turbine. As a result of the development, the proposed approach could potentially be used to minimise the carbon footprints of major engineering projects such as wind farms.

Raymond Aso; Wai Ming Cheung

2015-01-01T23:59:59.000Z

491

A discrete/continuous-time MILP model for medium-term planning of single stage multiproduct plants  

Science Journals Connector (OSTI)

The objective of this work is to develop an optimization model for the medium-term planning of single stage continuous multiproduct plants. Several types of \\{SKUs\\} (Stock Keeping Units) are produced. Customers place orders that represent multiples of \\{SKUs\\} and these orders must be delivered at the end of each week. When different SKU types are processed, sequence-dependent changeover times and costs are incurred. The problem is represented as a mixed-integer linear programming (MILP) model with a hybrid time representation. The objective is to maximize profit that involves sales revenues, production costs, product changeover costs, inventory costs and late delivery penalties. The proposed optimization-based model is validated in a real-world polymer processing plant.

Jose M. Pinto; Peter Chen; Lazaros G. Papageorgiou

2007-01-01T23:59:59.000Z

492

Elective Inguinal Node Irradiation in Early-Stage T2N0 Anal Cancer: Prognostic Impact on Locoregional Control  

SciTech Connect

Purpose: To evaluate the influence of elective inguinal node radiation therapy (INRT) on locoregional control (LRC) in patients with early-stage T2N0 anal cancer treated conservatively with primary RT. Methods and Materials: Between 1976 and 2008, 116 patients with T2 node-negative anal cancer were treated curatively with RT alone (n=48) or by combined chemoradiation therapy (CRT) (n=68) incorporating mitomycin C and 5-fluorouracil. Sixty-four percent of the patients (n=74) received elective INRT. Results: Over a median follow-up of 69 months (range, 4-243 months), 97 (84%) and 95 patients (82%) were locally and locoregionally controlled, respectively. Rates for 5-year actuarial local control, LRC, cancer-specific, and overall survival for the entire population were 81.7% ± 3.8%, 79.2% ± 4.1%, 91.1% ± 3.0%, and 72.1% ± 4.5%, respectively. The overall 5-year inguinal relapse-free survival was 92.3% ± 2.9%. Isolated inguinal recurrence occurred in 2 patients (4.7%) treated without INRT, whereas no groin relapse was observed in those treated with INRT. The 5-year LRC rates for patients treated with and without INRT and with RT alone versus combined CRT were 80.1% ± 5.0% versus 77.8% ± 7.0% (P=.967) and 71.0% ± 7.2% versus 85.4% ± 4.5% (P=.147), respectively. A trend toward a higher rate of grade ?3 acute toxicity was observed in patients treated with INRT (53% vs 31%, P=.076). Conclusions: In cases of node-negative T2 anal cancer, the inguinal relapse rate remains relatively low with or without INRT. The role of INRT in the treatment of early-stage anal carcinoma needs to be investigated in future prospective trials.

Zilli, Thomas, E-mail: Thomas.Zilli@hcuge.ch [Department of Radiation Oncology, Geneva University Hospital, Geneva (Switzerland); Betz, Michael [Department of Radiation Oncology, Geneva University Hospital, Geneva (Switzerland); Radiation Oncology Institute, Hirslanden Lausanne, Lausanne (Switzerland); Bieri, Sabine [Department of Radiation Oncology, Geneva University Hospital, Geneva (Switzerland); Ris, Frederic; Roche, Bruno [Department of Surgery, Geneva University Hospital, Geneva (Switzerland); Roth, Arnaud D. [Oncosurgery Unit, Geneva University Hospital, Geneva (Switzerland); Allal, Abdelkarim S. [Department of Radiation Oncology, Geneva University Hospital, Geneva (Switzerland); Department of Radiation Oncology,Hôpital Fribourgeois, Fribourg (Switzerland)

2013-09-01T23:59:59.000Z

493

Stage III Melanoma in the Axilla: Patterns of Regional Recurrence After Surgery With and Without Adjuvant Radiation Therapy  

SciTech Connect

Purpose: To describe the anatomic distribution of regionally recurrent disease in patients with stage III melanoma in the axilla after curative-intent surgery with and without adjuvant radiation therapy. Methods and Materials: A single-institution, retrospective analysis of a prospective database of 277 patients undergoing curative-intent treatment for stage III melanoma in the axilla between 1992 and 2012 was completed. For patients who received radiation therapy and those who did not, patterns of regional recurrence were analyzed, and univariate analyses were performed to assess for potential factors associated with location of recurrence. Results: There were 121 patients who received adjuvant radiation therapy because their clinicopathologic features conferred a greater risk of regional recurrence. There were 156 patients who received no radiation therapy. The overall axillary control rate was 87%. There were 37 patients with regional recurrence; 17 patients had received adjuvant radiation therapy (14%), and 20 patients (13%) had not. The likelihood of in-field nodal recurrence was significantly less in the adjuvant radiation therapy group (P=.01) and significantly greater in sites adjacent to the axilla (P=.02). Patients with high-risk clinicopathologic features who did not receive adjuvant radiation therapy also tended to experience in-field failure rather than adjacent-field failure. Conclusions: Patients who received adjuvant radiation therapy were more likely to experience recurrence in the adjacent-field regions rather than in the in-field regions. This may not simply reflect higher-risk pathology. Using this data, it may be possible to improve outcomes by reducing the number of adjacent-field recurrences after adjuvant radiation therapy.

Pinkham, Mark B., E-mail: mark.pinkham@health.qld.gov.au [Department of Radiation Oncology, Princess Alexandra Hospital, Brisbane (Australia); University of Queensland, Brisbane (Australia); Foote, Matthew C. [Department of Radiation Oncology, Princess Alexandra Hospital, Brisbane (Australia) [Department of Radiation Oncology, Princess Alexandra Hospital, Brisbane (Australia); Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane (Australia); Diamantina Institute, Brisbane (Australia); University of Queensland, Brisbane (Australia); Burmeister, Elizabeth [Nursing Practice Development Unit, Princess Alexandra Hospital, Brisbane (Australia) [Nursing Practice Development Unit, Princess Alexandra Hospital, Brisbane (Australia); Research Centre for Clinical and Community Practice, Griffith University, Brisbane (Australia); Thomas, Janine [Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane (Australia)] [Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane (Australia); Meakin, Janelle [Clinical Trials Research Unit, Princess Alexandra Hospital, Brisbane (Australia)] [Clinical Trials Research Unit, Princess Alexandra Hospital, Brisbane (Australia); Smithers, B. Mark [Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane (Australia) [Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane (Australia); University of Queensland, Brisbane (Australia); Burmeister, Bryan H. [Department of Radiation Oncology, Princess Alexandra Hospital, Brisbane (Australia) [Department of Radiation Oncology, Princess Alexandra Hospital, Brisbane (Australia); Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane (Australia); University of Queensland, Brisbane (Australia)

2013-07-15T23:59:59.000Z

494

Involved-Lesion Radiation Therapy After Chemotherapy in Limited-Stage Head-and-Neck Diffuse Large B Cell Lymphoma  

SciTech Connect

Purpose: To report treatment outcomes after combined-modality therapy in patients with Stage I/II head-and-neck (HN) diffuse large B cell lymphoma (DLBL). Methods and Materials: Eighty-six eligible patients received sequential chemotherapy and involved-lesion radiation therapy from 1995 to 2006. After a median of four cycles of CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone) or rituximab-plus-CHOP chemotherapy, a median of 41.4 Gy was delivered to the known initial gross lesion with adequate margin (2 to 3 cm). Results: After a median follow-up of 57 months, eight treatment failures were observed: distant metastasis in 8 patients; and locoregional failure in 4 patients. Among the 4 patients with locoregional failure, 3 presented with in-field failures, and 1 both in-field and out-of-field failure (contralateral neck). Rates of overall survival (OS) and freedom from progression (FFP) at 10 years were 74.1% and 88.9%, respectively. There was no severe side effect except 1 patient with Grade 3 mucositis during and after completion of radiation therapy. Multivariate analyses showed that absence of B symptom (p = 0.022) and normal lactate dehydrogenase (p = 0.017) were related to favorable OS, age >60 years (p = 0.033) was related to favorable FFP, and international prognostic index of 0 or 1 was related to favorable OS (p = 0.003) and FFP (p = 0.03). Conclusion: This study demonstrated that patients with Stage I/II HN DLBL did not need whole-neck irradiation. Involved-lesion radiation therapy might reduce radiation toxicity with favorable treatment results.

Yu, Jeong Il; Nam, Heerim [Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of); Ahn, Yong Chan, E-mail: ahnyc@skku.ed [Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of); Kim, Won Seog; Park, Keunchil; Kim, Seok Jin [Division of Hematology-Oncology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of)

2010-10-01T23:59:59.000Z

495

Dynamic Modeling and Control Studies of a Two-Stage Bubbling Fluidized Bed Adsorber-Reactor for Solid-Sorbent CO{sub 2} Capture  

SciTech Connect

A one-dimensional, non-isothermal, pressure-driven dynamic model has been developed for a two-stage bubbling fluidized bed (BFB) adsorber-reactor for solid-sorbent carbon dioxide (CO{sub 2}) capture using Aspen Custom Modeler® (ACM). The BFB model for the flow of gas through a continuous phase of downward moving solids considers three regions: emulsion, bubble, and cloud-wake. Both the upper and lower reactor stages are of overflow-type configuration, i.e., the solids leave from the top of each stage. In addition, dynamic models have been developed for the downcomer that transfers solids between the stages and the exit hopper that removes solids from the bottom of the bed. The models of all auxiliary equipment such as valves and gas distributor have been integrated with the main model of the two-stage adsorber reactor. Using the developed dynamic model, the transient responses of various process variables such as CO{sub 2} capture rate and flue gas outlet temperatures have been studied by simulating typical disturbances such as change in the temperature, flowrate, and composition of the incoming flue gas from pulverized coal-fired power plants. In control studies, the performance of a proportional-integral-derivative (PID) controller, feedback-augmented feedforward controller, and linear model predictive controller (LMPC) are evaluated for maintaining the overall CO{sub 2} capture rate at a desired level in the face of typical disturbances.

Modekurti, Srinivasarao; Bhattacharyya, Debangsu; Zitney, Stephen E.

2013-07-31T23:59:59.000Z

496

Development of a straightness measurement and compensation system with multiple right-angle reflectors and a lead zirconate titanate-based compensation stage  

SciTech Connect

This paper presents a real-time straightness measurement and compensation system with an optical straightness measurement system and a single-axis flexure-hinge type lead zirconate titanate (PZT)-based compensation stage. The optical straightness measurement system consists of a He-Ne laser, a quadrant photodiode detector, and five right-angle reflectors. Multiple laser beam reflections between the right-angle reflectors increase the sensitivity of the straightness measurement by a factor of 6. The right-angle reflectors can be moved by the flexure-hinge type PZT-based compensation stage that is actuated by a PZT actuator to ensure that the laser beam is always projected onto the center of the quadrant detector. These two systems are integrated and fixed on a scanning stage. The resolution of the straightness measurement system is 0.1 {mu}m. Using the real-time straightness compensation system, the straightness error of the scanning stage is fed back to the control system. The compensated straightness error of the scanning stage system was reduced from 6.5 {mu}m to less than 1 {mu}m.

Liu, Chien-Hung; Chen, Jui-Hung [Institute of Electro-Optical and Materials Science, National Formosa University, Huwei, Yunlin 632, Taiwan (China); Teng, Yun-Feng [Department of Mechanical Engineering, National Chung-Cheng University, Chiayi 621, Taiwan (China)

2009-11-15T23:59:59.000Z

497

Two-stage Framework  

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

Index Terms: H.5.2 INFORMATION INTERFACES AND PRE- SENTATION: User Interfaces-Theory and methods; I.5.3 Pat- tern Recognition: Clustering-Algorithms; 1 INTRODUCTION...

498

Setting the Political Stage  

Science Journals Connector (OSTI)

Calls for the cessation of nuclear testing can be traced back to the beginning of the nuclear age. Over the years a number of attempts to negotiate an end to testing failed, usually because of an inability to ...

Ola Dahlman; Jenifer Mackby…

2011-01-01T23:59:59.000Z

499

Stages of Project Development  

Directives, Delegations, and Requirements

The chapter describes the various estimates and their relationship to each other as well as to the key decisions.

1997-03-28T23:59:59.000Z

500

Installation and Acceptance Stage  

Directives, Delegations, and Requirements

This chapter addresses activities required to install the software, data bases, or data that comprise the software product onto the hardware platform at sites of operation.

1997-05-21T23:59:59.000Z